diff options
Diffstat (limited to 'erts/emulator/beam')
139 files changed, 37786 insertions, 16594 deletions
diff --git a/erts/emulator/beam/atom.c b/erts/emulator/beam/atom.c index d7c7f117cf..84d2d5e3ed 100644 --- a/erts/emulator/beam/atom.c +++ b/erts/emulator/beam/atom.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 1996-2011. All Rights Reserved. + * Copyright Ericsson AB 1996-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -111,7 +111,7 @@ atom_text_alloc(int bytes) { byte *res; - ASSERT(bytes <= MAX_ATOM_LENGTH); + ASSERT(bytes <= MAX_ATOM_SZ_LIMIT); if (atom_text_pos + bytes >= atom_text_end) { more_atom_space(); } @@ -132,9 +132,17 @@ atom_hash(Atom* obj) byte* p = obj->name; int len = obj->len; HashValue h = 0, g; + byte v; while(len--) { - h = (h << 4) + *p++; + v = *p++; + /* latin1 clutch for r16 */ + if ((v & 0xFE) == 0xC2 && (*p & 0xC0) == 0x80) { + v = (v << 6) | (*p & 0x3F); + p++; len--; + } + /* normal hashpjw follows for v */ + h = (h << 4) + v; if ((g = h & 0xf0000000)) { h ^= (g >> 24); h ^= g; @@ -162,6 +170,7 @@ atom_alloc(Atom* tmpl) obj->name = atom_text_alloc(tmpl->len); sys_memcpy(obj->name, tmpl->name, tmpl->len); obj->len = tmpl->len; + obj->latin1_chars = tmpl->latin1_chars; obj->slot.index = -1; /* @@ -192,44 +201,146 @@ atom_free(Atom* obj) erts_free(ERTS_ALC_T_ATOM, (void*) obj); } +static void latin1_to_utf8(byte* conv_buf, const byte** srcp, int* lenp) +{ + byte* dst; + const byte* src = *srcp; + int i, len = *lenp; + + for (i=0 ; i < len; ++i) { + if (src[i] & 0x80) { + goto need_convertion; + } + } + return; + +need_convertion: + sys_memcpy(conv_buf, src, i); + dst = conv_buf + i; + for ( ; i < len; ++i) { + unsigned char chr = src[i]; + if (!(chr & 0x80)) { + *dst++ = chr; + } + else { + *dst++ = 0xC0 | (chr >> 6); + *dst++ = 0x80 | (chr & 0x3F); + } + } + *srcp = conv_buf; + *lenp = dst - conv_buf; +} + +/* + * erts_atom_put() may fail. If it fails THE_NON_VALUE is returned! + */ Eterm -am_atom_put(const char* name, int len) +erts_atom_put(const byte *name, int len, ErtsAtomEncoding enc, int trunc) { + byte utf8_copy[MAX_ATOM_SZ_FROM_LATIN1]; + const byte *text = name; + int tlen = len; + Sint no_latin1_chars; Atom a; - Eterm ret; int aix; - /* - * Silently truncate the atom if it is too long. Overlong atoms - * could occur in situations where we have no good way to return - * an error, such as in the I/O system. (Unfortunately, many - * drivers don't check for errors.) - * - * If an error should be produced for overlong atoms (such in - * list_to_atom/1), the caller should check the length before - * calling this function. - */ - if (len > MAX_ATOM_LENGTH) { - len = MAX_ATOM_LENGTH; - } #ifdef ERTS_ATOM_PUT_OPS_STAT erts_smp_atomic_inc_nob(&atom_put_ops); #endif - a.len = len; - a.name = (byte*)name; + + if (tlen < 0) { + if (trunc) + tlen = 0; + else + return THE_NON_VALUE; + } + + switch (enc) { + case ERTS_ATOM_ENC_7BIT_ASCII: + if (tlen > MAX_ATOM_CHARACTERS) { + if (trunc) + tlen = MAX_ATOM_CHARACTERS; + else + return THE_NON_VALUE; + } +#ifdef DEBUG + for (aix = 0; aix < len; aix++) { + ASSERT((name[aix] & 0x80) == 0); + } +#endif + no_latin1_chars = tlen; + break; + case ERTS_ATOM_ENC_LATIN1: + if (tlen > MAX_ATOM_CHARACTERS) { + if (trunc) + tlen = MAX_ATOM_CHARACTERS; + else + return THE_NON_VALUE; + } + no_latin1_chars = tlen; + latin1_to_utf8(utf8_copy, &text, &tlen); + break; + case ERTS_ATOM_ENC_UTF8: + /* First sanity check; need to verify later */ + if (tlen > MAX_ATOM_SZ_LIMIT && !trunc) + return THE_NON_VALUE; + break; + } + + a.len = tlen; + a.name = (byte *) text; atom_read_lock(); aix = index_get(&erts_atom_table, (void*) &a); atom_read_unlock(); - if (aix >= 0) - ret = make_atom(aix); - else { - atom_write_lock(); - ret = make_atom(index_put(&erts_atom_table, (void*) &a)); - atom_write_unlock(); + if (aix >= 0) { + /* Already in table no need to verify it */ + return make_atom(aix); } - return ret; + + if (enc == ERTS_ATOM_ENC_UTF8) { + /* Need to verify encoding and length */ + byte *err_pos; + Uint no_chars; + switch (erts_analyze_utf8_x((byte *) text, + (Uint) tlen, + &err_pos, + &no_chars, NULL, + &no_latin1_chars, + MAX_ATOM_CHARACTERS)) { + case ERTS_UTF8_OK: + ASSERT(no_chars <= MAX_ATOM_CHARACTERS); + break; + case ERTS_UTF8_OK_MAX_CHARS: + /* Truncated... */ + if (!trunc) + return THE_NON_VALUE; + ASSERT(no_chars == MAX_ATOM_CHARACTERS); + tlen = err_pos - text; + break; + default: + /* Bad utf8... */ + return THE_NON_VALUE; + } + } + + ASSERT(tlen <= MAX_ATOM_SZ_LIMIT); + ASSERT(-1 <= no_latin1_chars && no_latin1_chars <= MAX_ATOM_CHARACTERS); + + a.len = tlen; + a.latin1_chars = (Sint16) no_latin1_chars; + a.name = (byte *) text; + atom_write_lock(); + aix = index_put(&erts_atom_table, (void*) &a); + atom_write_unlock(); + return make_atom(aix); } +Eterm +am_atom_put(const char* name, int len) +{ + /* Assumes 7-bit ascii; use erts_atom_put() for other encodings... */ + return erts_atom_put((byte *) name, len, ERTS_ATOM_ENC_7BIT_ASCII, 1); +} int atom_table_size(void) { @@ -264,14 +375,19 @@ int atom_table_sz(void) } int -erts_atom_get(const char *name, int len, Eterm* ap) +erts_atom_get(const char *name, int len, Eterm* ap, ErtsAtomEncoding enc) { + byte utf8_copy[MAX_ATOM_SZ_FROM_LATIN1]; Atom a; int i; int res; - a.len = len; + a.len = (Sint16) len; a.name = (byte *)name; + if (enc == ERTS_ATOM_ENC_LATIN1) { + latin1_to_utf8(utf8_copy, (const byte**)&a.name, &len); + a.len = (Sint16) len; + } atom_read_lock(); i = index_get(&erts_atom_table, (void*) &a); res = i < 0 ? 0 : (*ap = make_atom(i), 1); @@ -333,8 +449,15 @@ init_atom_table(void) for (i = 0; erl_atom_names[i] != 0; i++) { int ix; a.len = strlen(erl_atom_names[i]); + a.latin1_chars = a.len; a.name = (byte*)erl_atom_names[i]; a.slot.index = i; +#ifdef DEBUG + /* Verify 7-bit ascii */ + for (ix = 0; ix < a.len; ix++) { + ASSERT((a.name[ix] & 0x80) == 0); + } +#endif ix = index_put(&erts_atom_table, (void*) &a); atom_text_pos -= a.len; atom_space -= a.len; diff --git a/erts/emulator/beam/atom.h b/erts/emulator/beam/atom.h index fd9c04d3d0..5904ae0f7e 100644 --- a/erts/emulator/beam/atom.h +++ b/erts/emulator/beam/atom.h @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 1996-2011. All Rights Reserved. + * Copyright Ericsson AB 1996-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -26,7 +26,9 @@ #include "erl_atom_table.h" -#define MAX_ATOM_LENGTH 255 +#define MAX_ATOM_CHARACTERS 255 +#define MAX_ATOM_SZ_FROM_LATIN1 (2*MAX_ATOM_CHARACTERS) +#define MAX_ATOM_SZ_LIMIT (4*MAX_ATOM_CHARACTERS) /* theoretical byte limit */ #define ATOM_LIMIT (1024*1024) #define MIN_ATOM_TABLE_SIZE 8192 @@ -45,7 +47,8 @@ */ typedef struct atom { IndexSlot slot; /* MUST BE LOCATED AT TOP OF STRUCT!!! */ - int len; /* length of atom name */ + Sint16 len; /* length of atom name (UTF-8 encoded) */ + Sint16 latin1_chars; /* 0-255 if atom can be encoded in latin1; otherwise, -1 */ int ord0; /* ordinal value of first 3 bytes + 7 bits */ byte* name; /* name of atom */ } Atom; @@ -53,8 +56,8 @@ typedef struct atom { extern IndexTable erts_atom_table; ERTS_GLB_INLINE Atom* atom_tab(Uint i); -ERTS_GLB_INLINE int erts_is_atom_bytes(byte *text, size_t len, Eterm term); -ERTS_GLB_INLINE int erts_is_atom_str(char *str, Eterm term); +ERTS_GLB_INLINE int erts_is_atom_utf8_bytes(byte *text, size_t len, Eterm term); +ERTS_GLB_INLINE int erts_is_atom_str(const char *str, Eterm term, int is_latin1); #if ERTS_GLB_INLINE_INCL_FUNC_DEF ERTS_GLB_INLINE Atom* @@ -63,7 +66,7 @@ atom_tab(Uint i) return (Atom *) erts_index_lookup(&erts_atom_table, i); } -ERTS_GLB_INLINE int erts_is_atom_bytes(byte *text, size_t len, Eterm term) +ERTS_GLB_INLINE int erts_is_atom_utf8_bytes(byte *text, size_t len, Eterm term) { Atom *a; if (!is_atom(term)) @@ -73,43 +76,70 @@ ERTS_GLB_INLINE int erts_is_atom_bytes(byte *text, size_t len, Eterm term) && sys_memcmp((void *) a->name, (void *) text, len) == 0); } -ERTS_GLB_INLINE int erts_is_atom_str(char *str, Eterm term) +ERTS_GLB_INLINE int erts_is_atom_str(const char *str, Eterm term, int is_latin1) { Atom *a; int i, len; - char *aname; + const byte* aname; + const byte* s = (const byte*) str; + if (!is_atom(term)) return 0; a = atom_tab(atom_val(term)); len = a->len; - aname = (char *) a->name; - for (i = 0; i < len; i++) - if (aname[i] != str[i] || str[i] == '\0') - return 0; - return str[len] == '\0'; + aname = a->name; + if (is_latin1) { + for (i = 0; i < len; s++) { + if (aname[i] < 0x80) { + if (aname[i] != *s || *s == '\0') + return 0; + i++; + } + else { + if (aname[i] != (0xC0 | (*s >> 6)) || + aname[i+1] != (0x80 | (*s & 0x3F))) { + return 0; + } + i += 2; + } + } + } + else { + for (i = 0; i < len; i++, s++) + if (aname[i] != *s || *s == '\0') + return 0; + } + return *s == '\0'; } #endif +typedef enum { + ERTS_ATOM_ENC_7BIT_ASCII, + ERTS_ATOM_ENC_LATIN1, + ERTS_ATOM_ENC_UTF8 +} ErtsAtomEncoding; + /* * Note, ERTS_IS_ATOM_STR() expects the first argument to be a - * string literal. + * 7-bit ASCII string literal. */ #define ERTS_IS_ATOM_STR(LSTR, TERM) \ - (erts_is_atom_bytes((byte *) LSTR, sizeof(LSTR) - 1, (TERM))) + (erts_is_atom_utf8_bytes((byte *) LSTR, sizeof(LSTR) - 1, (TERM))) #define ERTS_DECL_AM(S) Eterm AM_ ## S = am_atom_put(#S, sizeof(#S) - 1) #define ERTS_INIT_AM(S) AM_ ## S = am_atom_put(#S, sizeof(#S) - 1) int atom_table_size(void); /* number of elements */ int atom_table_sz(void); /* table size in bytes, excluding stored objects */ -Eterm am_atom_put(const char*, int); /* most callers pass plain char*'s */ +Eterm am_atom_put(const char*, int); /* ONLY 7-bit ascii! */ +Eterm erts_atom_put(const byte *name, int len, ErtsAtomEncoding enc, int trunc); int atom_erase(byte*, int); int atom_static_put(byte*, int); void init_atom_table(void); void atom_info(int, void *); void dump_atoms(int, void *); -int erts_atom_get(const char* name, int len, Eterm* ap); +int erts_atom_get(const char* name, int len, Eterm* ap, ErtsAtomEncoding enc); void erts_atom_get_text_space_sizes(Uint *reserved, Uint *used); #endif diff --git a/erts/emulator/beam/atom.names b/erts/emulator/beam/atom.names index afcbd732df..5d06a32941 100644 --- a/erts/emulator/beam/atom.names +++ b/erts/emulator/beam/atom.names @@ -1,7 +1,7 @@ # # %CopyrightBegin% # -# Copyright Ericsson AB 1996-2012. All Rights Reserved. +# Copyright Ericsson AB 1996-2013. All Rights Reserved. # # The contents of this file are subject to the Erlang Public License, # Version 1.1, (the "License"); you may not use this file except in @@ -18,6 +18,8 @@ # # +# IMPORTANT! All atoms defined here *need* to be in 7-bit ascii! +# # File format: # # Lines starting with '#' are ignored. @@ -69,6 +71,7 @@ atom ac atom active atom all atom all_but_first +atom all_names atom alloc_info atom alloc_sizes atom allocated @@ -76,6 +79,7 @@ atom allocated_areas atom allocator atom allocator_sizes atom alloc_util_allocators +atom allow_gc atom allow_passive_connect atom already_loaded atom amd64 @@ -94,6 +98,7 @@ atom asynchronous atom atom atom atom_used atom attributes +atom await_port_send_result atom await_proc_exit atom await_sched_wall_time_modifications atom awaiting_load @@ -111,6 +116,8 @@ atom binary_longest_prefix_trap atom binary_longest_suffix_trap atom binary_match_trap atom binary_matches_trap +atom binary_to_list_continue +atom binary_to_term_trap atom block atom blocked atom bm @@ -136,6 +143,7 @@ atom caseless atom catchlevel atom cd atom cdr +atom cflags atom characters_to_binary_int atom characters_to_list_int atom clear @@ -143,15 +151,18 @@ atom close atom closed atom code atom command +atom compact atom compat_rel atom compile atom compressed +atom config_h atom connect atom connected atom connection_closed atom cons atom const atom context_switches +atom control atom copy atom cpu atom cpu_timestamp @@ -163,15 +174,18 @@ atom current_location atom current_stacktrace atom data atom debug_flags +atom decimals atom delay_trap atom dexit atom depth atom dgroup_leader atom dictionary +atom dirty_cpu_schedulers_online atom disable_trace atom disabled atom display_items atom dist +atom dist_cmd atom Div='/' atom div atom dlink @@ -204,6 +218,7 @@ atom erlang atom ERROR='ERROR' atom error_handler atom error_logger +atom erts_internal atom ets atom ETS_TRANSFER='ETS-TRANSFER' atom event @@ -237,9 +252,11 @@ atom gc_end atom gc_start atom Ge='>=' atom generational +atom get_data atom get_seq_token atom get_tcw atom getenv +atom gather_gc_info_result atom gather_sched_wall_time_result atom getting_linked atom getting_unlinked @@ -261,6 +278,7 @@ atom hipe_architecture atom http httph https http_response http_request http_header http_eoh http_error http_bin httph_bin atom id atom if_clause +atom ignore atom imports atom in atom in_exiting @@ -290,6 +308,7 @@ atom label atom large_heap atom last_calls atom latin1 +atom ldflags atom Le='=<' atom lf atom line @@ -297,22 +316,27 @@ atom line_length atom linked_in_driver atom links atom list +atom list_to_binary_continue atom little atom loaded atom load_cancelled atom load_failure atom local atom long_gc +atom long_schedule atom low atom Lt='<' atom machine atom match +atom match_limit +atom match_limit_recursion atom match_spec atom max atom maximum atom max_tables max_processes atom mbuf_size atom memory +atom memory_internal atom memory_types atom message atom message_binary @@ -335,11 +359,13 @@ atom multi_scheduling atom multiline atom name atom named_table +atom namelist atom native_addresses atom Neq='=/=' atom Neqeq='/=' atom net_kernel atom net_kernel_terminated +atom never_utf atom new atom new_index atom new_uniq @@ -365,6 +391,7 @@ atom nosuspend atom no_float atom no_integer atom no_network +atom no_start_optimize atom not atom not_a_list atom not_loaded @@ -375,6 +402,7 @@ atom notalive atom notbol atom noteol atom notempty +atom notempty_atstart atom notify atom notsup atom nouse_stdio @@ -408,6 +436,7 @@ atom overlapped_io atom owner atom packet atom packet_size +atom parallelism atom Plus='+' atom pause atom pending @@ -419,21 +448,24 @@ atom pid atom port atom ports atom port_count +atom port_limit +atom port_op atom print atom priority atom private atom process atom processes -atom processes_trap atom processes_used atom process_count atom process_display atom process_limit atom process_dump atom procs +atom proc_sig atom profile atom protected atom protection +atom ptab_list_continue atom public atom purify atom quantify @@ -455,6 +487,7 @@ atom register atom registered_name atom reload atom rem +atom report_errors atom reset atom restart atom return_from @@ -474,6 +507,7 @@ atom scheduler atom scheduler_id atom schedulers_online atom scheme +atom scientific atom scope atom sensitive atom sequential_tracer @@ -481,6 +515,7 @@ atom sequential_trace_token atom serial atom set atom set_cpu_topology +atom set_data atom set_on_first_link atom set_on_first_spawn atom set_on_link @@ -515,6 +550,7 @@ atom system_version atom system_architecture atom SYSTEM='SYSTEM' atom table +atom term_to_binary_trap atom this atom thread_pool_size atom threads @@ -534,6 +570,7 @@ atom true atom tuple atom type atom ucompile +atom ucp atom undef atom ungreedy atom unicode diff --git a/erts/emulator/beam/beam_bif_load.c b/erts/emulator/beam/beam_bif_load.c index 02f37bf9bc..df1983a83d 100644 --- a/erts/emulator/beam/beam_bif_load.c +++ b/erts/emulator/beam/beam_bif_load.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 1999-2012. All Rights Reserved. + * Copyright Ericsson AB 1999-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -36,26 +36,84 @@ #include "erl_thr_progress.h" static void set_default_trace_pattern(Eterm module); -static Eterm check_process_code(Process* rp, Module* modp); -static void delete_code(Process *c_p, ErtsProcLocks c_p_locks, Module* modp); -static void delete_export_references(Eterm module); -static int purge_module(int module); +static Eterm check_process_code(Process* rp, Module* modp, int allow_gc, int *redsp); +static void delete_code(Module* modp); static void decrement_refc(BeamInstr* code); static int is_native(BeamInstr* code); static int any_heap_ref_ptrs(Eterm* start, Eterm* end, char* mod_start, Uint mod_size); static int any_heap_refs(Eterm* start, Eterm* end, char* mod_start, Uint mod_size); -static void remove_from_address_table(BeamInstr* code); -Eterm -load_module_2(BIF_ALIST_2) + + +BIF_RETTYPE code_is_module_native_1(BIF_ALIST_1) +{ + Module* modp; + Eterm res; + ErtsCodeIndex code_ix; + + if (is_not_atom(BIF_ARG_1)) { + BIF_ERROR(BIF_P, BADARG); + } + code_ix = erts_active_code_ix(); + if ((modp = erts_get_module(BIF_ARG_1, code_ix)) == NULL) { + return am_undefined; + } + erts_rlock_old_code(code_ix); + res = ((modp->curr.code && is_native(modp->curr.code)) || + (modp->old.code != 0 && is_native(modp->old.code))) ? + am_true : am_false; + erts_runlock_old_code(code_ix); + return res; +} + +BIF_RETTYPE code_make_stub_module_3(BIF_ALIST_3) { - Eterm reason; - Eterm* hp; - int sz; - byte* code; + Module* modp; Eterm res; + + if (!erts_try_seize_code_write_permission(BIF_P)) { + ERTS_BIF_YIELD3(bif_export[BIF_code_make_stub_module_3], + BIF_P, BIF_ARG_1, BIF_ARG_2, BIF_ARG_3); + } + + erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCK_MAIN); + erts_smp_thr_progress_block(); + + modp = erts_get_module(BIF_ARG_1, erts_active_code_ix()); + + if (modp && modp->curr.num_breakpoints > 0) { + ASSERT(modp->curr.code != NULL); + erts_clear_module_break(modp); + ASSERT(modp->curr.num_breakpoints == 0); + } + + erts_start_staging_code_ix(); + + res = erts_make_stub_module(BIF_P, BIF_ARG_1, BIF_ARG_2, BIF_ARG_3); + + if (res == BIF_ARG_1) { + erts_end_staging_code_ix(); + erts_commit_staging_code_ix(); + } + else { + erts_abort_staging_code_ix(); + } + erts_smp_thr_progress_unblock(); + erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCK_MAIN); + erts_release_code_write_permission(); + return res; +} + +BIF_RETTYPE +prepare_loading_2(BIF_ALIST_2) +{ byte* temp_alloc = NULL; - struct LoaderState* stp; + byte* code; + Uint sz; + Binary* magic; + Eterm reason; + Eterm* hp; + Eterm res; if (is_not_atom(BIF_ARG_1)) { error: @@ -65,214 +123,453 @@ load_module_2(BIF_ALIST_2) if ((code = erts_get_aligned_binary_bytes(BIF_ARG_2, &temp_alloc)) == NULL) { goto error; } - hp = HAlloc(BIF_P, 3); - /* - * Read the BEAM file and prepare the module for loading. - */ - stp = erts_alloc_loader_state(); + magic = erts_alloc_loader_state(); sz = binary_size(BIF_ARG_2); - reason = erts_prepare_loading(stp, BIF_P, BIF_P->group_leader, + reason = erts_prepare_loading(magic, BIF_P, BIF_P->group_leader, &BIF_ARG_1, code, sz); erts_free_aligned_binary_bytes(temp_alloc); if (reason != NIL) { + hp = HAlloc(BIF_P, 3); res = TUPLE2(hp, am_error, reason); BIF_RET(res); } + hp = HAlloc(BIF_P, PROC_BIN_SIZE); + res = erts_mk_magic_binary_term(&hp, &MSO(BIF_P), magic); + erts_refc_dec(&magic->refc, 1); + BIF_RET(res); +} + +struct m { + Binary* code; + Eterm module; + Module* modp; + Uint exception; +}; + +static Eterm staging_epilogue(Process* c_p, int, Eterm res, int, struct m*, int); +#ifdef ERTS_SMP +static void smp_code_ix_commiter(void*); + +static struct /* Protected by code_write_permission */ +{ + Process* stager; + ErtsThrPrgrLaterOp lop; +}commiter_state; +#endif + +static Eterm +exception_list(Process* p, Eterm tag, struct m* mp, Sint exceptions) +{ + Eterm* hp = HAlloc(p, 3 + 2*exceptions); + Eterm res = NIL; + + mp += exceptions - 1; + while (exceptions > 0) { + if (mp->exception) { + res = CONS(hp, mp->module, res); + hp += 2; + exceptions--; + } + mp--; + } + return TUPLE2(hp, tag, res); +} + + +BIF_RETTYPE +finish_loading_1(BIF_ALIST_1) +{ + int i; + int n; + struct m* p = NULL; + Uint exceptions; + Eterm res; + int is_blocking = 0; + int do_commit = 0; + + if (!erts_try_seize_code_write_permission(BIF_P)) { + ERTS_BIF_YIELD1(bif_export[BIF_finish_loading_1], BIF_P, BIF_ARG_1); + } /* - * Stop all other processes and finish the loading of the module. + * Validate the argument before we start loading; it must be a + * proper list where each element is a magic binary containing + * prepared (not previously loaded) code. + * + * First count the number of elements and allocate an array + * to keep the elements in. */ - erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCK_MAIN); - erts_smp_thr_progress_block(); - reason = erts_finish_loading(stp, BIF_P, 0, &BIF_ARG_1); - if (reason != NIL) { - res = TUPLE2(hp, am_error, reason); - } else { - set_default_trace_pattern(BIF_ARG_1); - res = TUPLE2(hp, am_module, BIF_ARG_1); + n = erts_list_length(BIF_ARG_1); + if (n == -1) { + ERTS_BIF_PREP_ERROR(res, BIF_P, BADARG); + goto done; } + p = erts_alloc(ERTS_ALC_T_LOADER_TMP, n*sizeof(struct m)); - erts_smp_thr_progress_unblock(); - erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCK_MAIN); - BIF_RET(res); -} + /* + * We now know that the argument is a proper list. Validate + * and collect the binaries into the array. + */ -BIF_RETTYPE purge_module_1(BIF_ALIST_1) -{ - int purge_res; + for (i = 0; i < n; i++) { + Eterm* cons = list_val(BIF_ARG_1); + Eterm term = CAR(cons); + ProcBin* pb; - if (is_not_atom(BIF_ARG_1)) { - BIF_ERROR(BIF_P, BADARG); + if (!ERTS_TERM_IS_MAGIC_BINARY(term)) { + ERTS_BIF_PREP_ERROR(res, BIF_P, BADARG); + goto done; + } + pb = (ProcBin*) binary_val(term); + p[i].code = pb->val; + p[i].module = erts_module_for_prepared_code(p[i].code); + if (p[i].module == NIL) { + ERTS_BIF_PREP_ERROR(res, BIF_P, BADARG); + goto done; + } + BIF_ARG_1 = CDR(cons); } - erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCK_MAIN); - erts_smp_thr_progress_block(); + /* + * Since we cannot handle atomic loading of a group of modules + * if one or more of them uses on_load, we will only allow one + * element in the list. This limitation is intended to be + * lifted in the future. + */ - erts_export_consolidate(); - purge_res = purge_module(atom_val(BIF_ARG_1)); + if (n > 1) { + ERTS_BIF_PREP_ERROR(res, BIF_P, SYSTEM_LIMIT); + goto done; + } - erts_smp_thr_progress_unblock(); - erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCK_MAIN); + /* + * All types are correct. There cannot be a BADARG from now on. + * Before we can start loading, we must check whether any of + * the modules already has old code. To avoid a race, we must + * not allow other process to initiate a code loading operation + * from now on. + */ - if (purge_res < 0) { - BIF_ERROR(BIF_P, BADARG); + res = am_ok; + erts_start_staging_code_ix(); + + for (i = 0; i < n; i++) { + p[i].modp = erts_put_module(p[i].module); + } + for (i = 0; i < n; i++) { + if (p[i].modp->curr.num_breakpoints > 0 || + p[i].modp->curr.num_traced_exports > 0 || + erts_is_default_trace_enabled()) { + /* tracing involved, fallback with thread blocking */ + erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCK_MAIN); + erts_smp_thr_progress_block(); + is_blocking = 1; + break; + } } - BIF_RET(am_true); -} -BIF_RETTYPE code_is_module_native_1(BIF_ALIST_1) -{ - Module* modp; + if (is_blocking) { + for (i = 0; i < n; i++) { + if (p[i].modp->curr.num_breakpoints) { + erts_clear_module_break(p[i].modp); + ASSERT(p[i].modp->curr.num_breakpoints == 0); + } + } + } - if (is_not_atom(BIF_ARG_1)) { - BIF_ERROR(BIF_P, BADARG); + exceptions = 0; + for (i = 0; i < n; i++) { + p[i].exception = 0; + if (p[i].modp->curr.code && p[i].modp->old.code) { + p[i].exception = 1; + exceptions++; + } } - if ((modp = erts_get_module(BIF_ARG_1)) == NULL) { - return am_undefined; + + if (exceptions) { + res = exception_list(BIF_P, am_not_purged, p, exceptions); + } else { + /* + * Now we can load all code. This can't fail. + */ + + exceptions = 0; + for (i = 0; i < n; i++) { + Eterm mod; + Eterm retval; + + erts_refc_inc(&p[i].code->refc, 1); + retval = erts_finish_loading(p[i].code, BIF_P, 0, &mod); + ASSERT(retval == NIL || retval == am_on_load); + if (retval == am_on_load) { + p[i].exception = 1; + exceptions++; + } + } + + /* + * Check whether any module has an on_load_handler. + */ + + if (exceptions) { + res = exception_list(BIF_P, am_on_load, p, exceptions); + } + do_commit = 1; } - return ((modp->code && is_native(modp->code)) || - (modp->old_code != 0 && is_native(modp->old_code))) ? - am_true : am_false; + +done: + return staging_epilogue(BIF_P, do_commit, res, is_blocking, p, n); } -BIF_RETTYPE code_make_stub_module_3(BIF_ALIST_3) -{ - Eterm res; +static Eterm +staging_epilogue(Process* c_p, int commit, Eterm res, int is_blocking, + struct m* loaded, int nloaded) +{ +#ifdef ERTS_SMP + if (is_blocking || !commit) +#endif + { + if (commit) { + erts_end_staging_code_ix(); + erts_commit_staging_code_ix(); + if (loaded) { + int i; + for (i=0; i < nloaded; i++) { + set_default_trace_pattern(loaded[i].module); + } + } + } + else { + erts_abort_staging_code_ix(); + } + if (loaded) { + erts_free(ERTS_ALC_T_LOADER_TMP, loaded); + } + if (is_blocking) { + erts_smp_thr_progress_unblock(); + erts_smp_proc_lock(c_p, ERTS_PROC_LOCK_MAIN); + } + erts_release_code_write_permission(); + return res; + } +#ifdef ERTS_SMP + else { + ASSERT(is_value(res)); - erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCK_MAIN); - erts_smp_thr_progress_block(); + if (loaded) { + erts_free(ERTS_ALC_T_LOADER_TMP, loaded); + } + erts_end_staging_code_ix(); + /* + * Now we must wait for all schedulers to do a memory barrier before + * we can commit and let them access the new staged code. This allows + * schedulers to read active code_ix in a safe way while executing + * without any memory barriers at all. + */ + ASSERT(commiter_state.stager == NULL); + commiter_state.stager = c_p; + erts_schedule_thr_prgr_later_op(smp_code_ix_commiter, NULL, &commiter_state.lop); + erts_smp_proc_inc_refc(c_p); + erts_suspend(c_p, ERTS_PROC_LOCK_MAIN, NULL); + /* + * smp_code_ix_commiter() will do the rest "later" + * and resume this process to return 'res'. + */ + ERTS_BIF_YIELD_RETURN(c_p, res); + } +#endif +} - erts_export_consolidate(); - res = erts_make_stub_module(BIF_P, BIF_ARG_1, BIF_ARG_2, BIF_ARG_3); - erts_smp_thr_progress_unblock(); - erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCK_MAIN); - return res; +#ifdef ERTS_SMP +static void smp_code_ix_commiter(void* null) +{ + Process* p = commiter_state.stager; + + erts_commit_staging_code_ix(); +#ifdef DEBUG + commiter_state.stager = NULL; +#endif + erts_release_code_write_permission(); + erts_smp_proc_lock(p, ERTS_PROC_LOCK_STATUS); + if (!ERTS_PROC_IS_EXITING(p)) { + erts_resume(p, ERTS_PROC_LOCK_STATUS); + } + erts_smp_proc_unlock(p, ERTS_PROC_LOCK_STATUS); + erts_smp_proc_dec_refc(p); } +#endif /* ERTS_SMP */ + + BIF_RETTYPE check_old_code_1(BIF_ALIST_1) { + ErtsCodeIndex code_ix; Module* modp; + Eterm res = am_false; if (is_not_atom(BIF_ARG_1)) { BIF_ERROR(BIF_P, BADARG); } - modp = erts_get_module(BIF_ARG_1); - if (modp == NULL) { /* Doesn't exist. */ - BIF_RET(am_false); - } else if (modp->old_code == NULL) { /* No old code. */ - BIF_RET(am_false); + code_ix = erts_active_code_ix(); + modp = erts_get_module(BIF_ARG_1, code_ix); + if (modp != NULL) { + erts_rlock_old_code(code_ix); + if (modp->old.code != NULL) { + res = am_true; + } + erts_runlock_old_code(code_ix); } - BIF_RET(am_true); + BIF_RET(res); } Eterm -check_process_code_2(BIF_ALIST_2) +erts_check_process_code(Process *c_p, Eterm module, int allow_gc, int *redsp) { - Process* rp; Module* modp; + Eterm res; + ErtsCodeIndex code_ix; - if (is_not_atom(BIF_ARG_2)) { - goto error; - } - if (is_internal_pid(BIF_ARG_1)) { - Eterm res; - if (internal_pid_index(BIF_ARG_1) >= erts_max_processes) - goto error; - modp = erts_get_module(BIF_ARG_2); - if (modp == NULL) { /* Doesn't exist. */ - return am_false; - } else if (modp->old_code == NULL) { /* No old code. */ - return am_false; - } - -#ifdef ERTS_SMP - rp = erts_pid2proc_suspend(BIF_P, ERTS_PROC_LOCK_MAIN, - BIF_ARG_1, ERTS_PROC_LOCK_MAIN); -#else - rp = erts_pid2proc(BIF_P, 0, BIF_ARG_1, 0); -#endif - if (!rp) { - BIF_RET(am_false); - } - if (rp == ERTS_PROC_LOCK_BUSY) { - ERTS_BIF_YIELD2(bif_export[BIF_check_process_code_2], BIF_P, - BIF_ARG_1, BIF_ARG_2); - } - res = check_process_code(rp, modp); -#ifdef ERTS_SMP - if (BIF_P != rp) { - erts_resume(rp, ERTS_PROC_LOCK_MAIN); - erts_smp_proc_unlock(rp, ERTS_PROC_LOCK_MAIN); + (*redsp)++; + + ASSERT(is_atom(module)); + + code_ix = erts_active_code_ix(); + modp = erts_get_module(module, code_ix); + if (!modp) + return am_false; + erts_rlock_old_code(code_ix); + res = modp->old.code ? check_process_code(c_p, modp, allow_gc, redsp) : am_false; + erts_runlock_old_code(code_ix); + + return res; +} + +BIF_RETTYPE erts_internal_check_process_code_2(BIF_ALIST_2) +{ + int reds = 0; + Eterm res; + Eterm olist = BIF_ARG_2; + int allow_gc = 1; + + if (is_not_atom(BIF_ARG_1)) + goto badarg; + + while (is_list(olist)) { + Eterm *lp = list_val(olist); + Eterm opt = CAR(lp); + if (is_tuple(opt)) { + Eterm* tp = tuple_val(opt); + switch (arityval(tp[0])) { + case 2: + switch (tp[1]) { + case am_allow_gc: + switch (tp[2]) { + case am_false: + allow_gc = 0; + break; + case am_true: + allow_gc = 1; + break; + default: + goto badarg; + } + break; + default: + goto badarg; + } + break; + default: + goto badarg; + } } -#endif - BIF_RET(res); - } - else if (is_external_pid(BIF_ARG_1) - && external_pid_dist_entry(BIF_ARG_1) == erts_this_dist_entry) { - BIF_RET(am_false); + else + goto badarg; + olist = CDR(lp); } + if (is_not_nil(olist)) + goto badarg; + + res = erts_check_process_code(BIF_P, BIF_ARG_1, allow_gc, &reds); + + ASSERT(is_value(res)); + + BIF_RET2(res, reds); - error: +badarg: BIF_ERROR(BIF_P, BADARG); } - BIF_RETTYPE delete_module_1(BIF_ALIST_1) { - int res; + ErtsCodeIndex code_ix; + Module* modp; + int is_blocking = 0; + int success = 0; + Eterm res = NIL; - if (is_not_atom(BIF_ARG_1)) - goto badarg; + if (is_not_atom(BIF_ARG_1)) { + BIF_ERROR(BIF_P, BADARG); + } - erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCK_MAIN); - erts_smp_thr_progress_block(); + if (!erts_try_seize_code_write_permission(BIF_P)) { + ERTS_BIF_YIELD1(bif_export[BIF_delete_module_1], BIF_P, BIF_ARG_1); + } { - Module *modp = erts_get_module(BIF_ARG_1); + erts_start_staging_code_ix(); + code_ix = erts_staging_code_ix(); + modp = erts_get_module(BIF_ARG_1, code_ix); if (!modp) { res = am_undefined; } - else if (modp->old_code != 0) { + else if (modp->old.code != 0) { erts_dsprintf_buf_t *dsbufp = erts_create_logger_dsbuf(); erts_dsprintf(dsbufp, "Module %T must be purged before loading\n", BIF_ARG_1); erts_send_error_to_logger(BIF_P->group_leader, dsbufp); - res = am_badarg; + ERTS_BIF_PREP_ERROR(res, BIF_P, BADARG); } else { - delete_export_references(BIF_ARG_1); - delete_code(BIF_P, 0, modp); + if (modp->curr.num_breakpoints > 0 || + modp->curr.num_traced_exports > 0) { + /* we have tracing, retry single threaded */ + erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCK_MAIN); + erts_smp_thr_progress_block(); + is_blocking = 1; + if (modp->curr.num_breakpoints) { + erts_clear_module_break(modp); + ASSERT(modp->curr.num_breakpoints == 0); + } + } + delete_code(modp); res = am_true; + success = 1; } } - - erts_smp_thr_progress_unblock(); - erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCK_MAIN); - - if (res == am_badarg) { - badarg: - BIF_ERROR(BIF_P, BADARG); - } - BIF_RET(res); + return staging_epilogue(BIF_P, success, res, is_blocking, NULL, 0); } BIF_RETTYPE module_loaded_1(BIF_ALIST_1) { Module* modp; + ErtsCodeIndex code_ix; + Eterm res = am_false; if (is_not_atom(BIF_ARG_1)) { BIF_ERROR(BIF_P, BADARG); } - if ((modp = erts_get_module(BIF_ARG_1)) == NULL || - modp->code == NULL || - modp->code[MI_ON_LOAD_FUNCTION_PTR] != 0) { - BIF_RET(am_false); + code_ix = erts_active_code_ix(); + if ((modp = erts_get_module(BIF_ARG_1, code_ix)) != NULL) { + if (modp->curr.code != NULL + && modp->curr.code[MI_ON_LOAD_FUNCTION_PTR] == 0) { + res = am_true; + } } - BIF_RET(am_true); + BIF_RET(res); } BIF_RETTYPE pre_loaded_0(BIF_ALIST_0) @@ -282,27 +579,28 @@ BIF_RETTYPE pre_loaded_0(BIF_ALIST_0) BIF_RETTYPE loaded_0(BIF_ALIST_0) { + ErtsCodeIndex code_ix = erts_active_code_ix(); + Module* modp; Eterm previous = NIL; Eterm* hp; int i; int j = 0; - - for (i = 0; i < module_code_size(); i++) { - if (module_code(i) != NULL && - ((module_code(i)->code_length != 0) || - (module_code(i)->old_code_length != 0))) { + + for (i = 0; i < module_code_size(code_ix); i++) { + if ((modp = module_code(i, code_ix)) != NULL && + ((modp->curr.code_length != 0) || + (modp->old.code_length != 0))) { j++; } } if (j > 0) { hp = HAlloc(BIF_P, j*2); - for (i = 0; i < module_code_size(); i++) { - if (module_code(i) != NULL && - ((module_code(i)->code_length != 0) || - (module_code(i)->old_code_length != 0))) { - previous = CONS(hp, make_atom(module_code(i)->module), - previous); + for (i = 0; i < module_code_size(code_ix); i++) { + if ((modp=module_code(i,code_ix)) != NULL && + ((modp->curr.code_length != 0) || + (modp->old.code_length != 0))) { + previous = CONS(hp, make_atom(modp->module), previous); hp += 2; } } @@ -312,54 +610,65 @@ BIF_RETTYPE loaded_0(BIF_ALIST_0) BIF_RETTYPE call_on_load_function_1(BIF_ALIST_1) { - Module* modp = erts_get_module(BIF_ARG_1); - Eterm on_load; + Module* modp = erts_get_module(BIF_ARG_1, erts_active_code_ix()); - if (!modp || modp->code == 0) { - error: - BIF_ERROR(BIF_P, BADARG); + if (modp && modp->curr.code) { + BIF_TRAP_CODE_PTR_0(BIF_P, modp->curr.code[MI_ON_LOAD_FUNCTION_PTR]); } - if ((on_load = modp->code[MI_ON_LOAD_FUNCTION_PTR]) == 0) { - goto error; + else { + BIF_ERROR(BIF_P, BADARG); } - BIF_TRAP_CODE_PTR_0(BIF_P, on_load); } BIF_RETTYPE finish_after_on_load_2(BIF_ALIST_2) { - Module* modp = erts_get_module(BIF_ARG_1); + ErtsCodeIndex code_ix; + Module* modp; Eterm on_load; - if (!modp || modp->code == 0) { + if (!erts_try_seize_code_write_permission(BIF_P)) { + ERTS_BIF_YIELD2(bif_export[BIF_finish_after_on_load_2], + BIF_P, BIF_ARG_1, BIF_ARG_2); + } + + /* ToDo: Use code_ix staging instead of thread blocking */ + + erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCK_MAIN); + erts_smp_thr_progress_block(); + + code_ix = erts_active_code_ix(); + modp = erts_get_module(BIF_ARG_1, code_ix); + + if (!modp || modp->curr.code == 0) { error: + erts_smp_thr_progress_unblock(); + erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCK_MAIN); + erts_release_code_write_permission(); BIF_ERROR(BIF_P, BADARG); } - if ((on_load = modp->code[MI_ON_LOAD_FUNCTION_PTR]) == 0) { + if ((on_load = modp->curr.code[MI_ON_LOAD_FUNCTION_PTR]) == 0) { goto error; } if (BIF_ARG_2 != am_false && BIF_ARG_2 != am_true) { goto error; } - erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCK_MAIN); - erts_smp_thr_progress_block(); - if (BIF_ARG_2 == am_true) { int i; /* * The on_load function succeded. Fix up export entries. */ - for (i = 0; i < export_list_size(); i++) { - Export *ep = export_list(i); + for (i = 0; i < export_list_size(code_ix); i++) { + Export *ep = export_list(i,code_ix); if (ep != NULL && ep->code[0] == BIF_ARG_1 && ep->code[4] != 0) { - ep->address = (void *) ep->code[4]; + ep->addressv[code_ix] = (void *) ep->code[4]; ep->code[4] = 0; } } - modp->code[MI_ON_LOAD_FUNCTION_PTR] = 0; + modp->curr.code[MI_ON_LOAD_FUNCTION_PTR] = 0; set_default_trace_pattern(BIF_ARG_1); } else if (BIF_ARG_2 == am_false) { BeamInstr* code; @@ -370,19 +679,21 @@ BIF_RETTYPE finish_after_on_load_2(BIF_ALIST_2) * This is an combination of delete and purge. We purge * the current code; the old code is not touched. */ - erts_total_code_size -= modp->code_length; - code = modp->code; - end = (BeamInstr *)((char *)code + modp->code_length); + erts_total_code_size -= modp->curr.code_length; + code = modp->curr.code; + end = (BeamInstr *)((char *)code + modp->curr.code_length); erts_cleanup_funs_on_purge(code, end); - beam_catches_delmod(modp->catches, code, modp->code_length); + beam_catches_delmod(modp->curr.catches, code, modp->curr.code_length, + erts_active_code_ix()); erts_free(ERTS_ALC_T_CODE, (void *) code); - modp->code = NULL; - modp->code_length = 0; - modp->catches = BEAM_CATCHES_NIL; - remove_from_address_table(code); + modp->curr.code = NULL; + modp->curr.code_length = 0; + modp->curr.catches = BEAM_CATCHES_NIL; + erts_remove_from_ranges(code); } erts_smp_thr_progress_unblock(); erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCK_MAIN); + erts_release_code_write_permission(); BIF_RET(am_true); } @@ -403,16 +714,16 @@ set_default_trace_pattern(Eterm module) if (trace_pattern_is_on) { Eterm mfa[1]; mfa[0] = module; - (void) erts_set_trace_pattern(mfa, 1, + (void) erts_set_trace_pattern(0, mfa, 1, match_spec, meta_match_spec, 1, trace_pattern_flags, - meta_tracer_pid); + meta_tracer_pid, 1); } } static Eterm -check_process_code(Process* rp, Module* modp) +check_process_code(Process* rp, Module* modp, int allow_gc, int *redsp) { BeamInstr* start; char* mod_start; @@ -427,10 +738,10 @@ check_process_code(Process* rp, Module* modp) /* * Pick up limits for the module. */ - start = modp->old_code; - end = (BeamInstr *)((char *)start + modp->old_code_length); + start = modp->old.code; + end = (BeamInstr *)((char *)start + modp->old.code_length); mod_start = (char *) start; - mod_size = modp->old_code_length; + mod_size = modp->old.code_length; /* * Check if current instruction or continuation pointer points into module. @@ -475,6 +786,16 @@ check_process_code(Process* rp, Module* modp) } } + if (rp->flags & F_DISABLE_GC) { + /* + * Cannot proceed. Process has disabled gc in order to + * safely leave inconsistent data on the heap and/or + * off heap lists. Need to wait for gc to be enabled + * again. + */ + return THE_NON_VALUE; + } + /* * See if there are funs that refer to the old version of the module. */ @@ -488,6 +809,8 @@ check_process_code(Process* rp, Module* modp) if (done_gc) { return am_true; } else { + if (!allow_gc) + return am_aborted; /* * Try to get rid of this fun by garbage collecting. * Clear both fvalue and ftrace to make sure they @@ -498,7 +821,7 @@ check_process_code(Process* rp, Module* modp) rp->ftrace = NIL; done_gc = 1; FLAGS(rp) |= F_NEED_FULLSWEEP; - (void) erts_garbage_collect(rp, 0, rp->arg_reg, rp->arity); + *redsp += erts_garbage_collect(rp, 0, rp->arg_reg, rp->arity); goto rescan; } } @@ -552,6 +875,9 @@ check_process_code(Process* rp, Module* modp) Uint lit_size; struct erl_off_heap_header* oh; + if (!allow_gc) + return am_aborted; + /* * Try to get rid of constants by by garbage collecting. * Clear both fvalue and ftrace. @@ -561,11 +887,12 @@ check_process_code(Process* rp, Module* modp) rp->ftrace = NIL; done_gc = 1; FLAGS(rp) |= F_NEED_FULLSWEEP; - (void) erts_garbage_collect(rp, 0, rp->arg_reg, rp->arity); - literals = (Eterm *) modp->old_code[MI_LITERALS_START]; - lit_size = (Eterm *) modp->old_code[MI_LITERALS_END] - literals; + *redsp += erts_garbage_collect(rp, 0, rp->arg_reg, rp->arity); + literals = (Eterm *) modp->old.code[MI_LITERALS_START]; + lit_size = (Eterm *) modp->old.code[MI_LITERALS_END] - literals; oh = (struct erl_off_heap_header *) - modp->old_code[MI_LITERALS_OFF_HEAP]; + modp->old.code[MI_LITERALS_OFF_HEAP]; + *redsp += lit_size / 10; /* Need, better value... */ erts_garbage_collect_literals(rp, literals, lit_size, oh); } } @@ -624,53 +951,82 @@ any_heap_refs(Eterm* start, Eterm* end, char* mod_start, Uint mod_size) #undef in_area - -static int -purge_module(int module) +BIF_RETTYPE purge_module_1(BIF_ALIST_1) { + ErtsCodeIndex code_ix; BeamInstr* code; BeamInstr* end; Module* modp; + int is_blocking = 0; + Eterm ret; - /* - * Correct module? - */ - - if ((modp = erts_get_module(make_atom(module))) == NULL) { - return -2; + if (is_not_atom(BIF_ARG_1)) { + BIF_ERROR(BIF_P, BADARG); } - /* - * Any code to purge? - */ - if (modp->old_code == 0) { - return -1; + if (!erts_try_seize_code_write_permission(BIF_P)) { + ERTS_BIF_YIELD1(bif_export[BIF_purge_module_1], BIF_P, BIF_ARG_1); } + code_ix = erts_active_code_ix(); + /* - * Unload any NIF library + * Correct module? */ - if (modp->old_nif != NULL) { - erts_unload_nif(modp->old_nif); - modp->old_nif = NULL; + + if ((modp = erts_get_module(BIF_ARG_1, code_ix)) == NULL) { + ERTS_BIF_PREP_ERROR(ret, BIF_P, BADARG); } + else { + erts_rwlock_old_code(code_ix); - /* - * Remove the old code. - */ - ASSERT(erts_total_code_size >= modp->old_code_length); - erts_total_code_size -= modp->old_code_length; - code = modp->old_code; - end = (BeamInstr *)((char *)code + modp->old_code_length); - erts_cleanup_funs_on_purge(code, end); - beam_catches_delmod(modp->old_catches, code, modp->old_code_length); - decrement_refc(code); - erts_free(ERTS_ALC_T_CODE, (void *) code); - modp->old_code = NULL; - modp->old_code_length = 0; - modp->old_catches = BEAM_CATCHES_NIL; - remove_from_address_table(code); - return 0; + /* + * Any code to purge? + */ + if (modp->old.code == 0) { + ERTS_BIF_PREP_ERROR(ret, BIF_P, BADARG); + } + else { + /* + * Unload any NIF library + */ + if (modp->old.nif != NULL) { + /* ToDo: Do unload nif without blocking */ + erts_rwunlock_old_code(code_ix); + erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCK_MAIN); + erts_smp_thr_progress_block(); + is_blocking = 1; + erts_rwlock_old_code(code_ix); + erts_unload_nif(modp->old.nif); + modp->old.nif = NULL; + } + + /* + * Remove the old code. + */ + ASSERT(erts_total_code_size >= modp->old.code_length); + erts_total_code_size -= modp->old.code_length; + code = modp->old.code; + end = (BeamInstr *)((char *)code + modp->old.code_length); + erts_cleanup_funs_on_purge(code, end); + beam_catches_delmod(modp->old.catches, code, modp->old.code_length, + code_ix); + decrement_refc(code); + erts_free(ERTS_ALC_T_CODE, (void *) code); + modp->old.code = NULL; + modp->old.code_length = 0; + modp->old.catches = BEAM_CATCHES_NIL; + erts_remove_from_ranges(code); + ERTS_BIF_PREP_RET(ret, am_true); + } + erts_rwunlock_old_code(code_ix); + } + if (is_blocking) { + erts_smp_thr_progress_unblock(); + erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCK_MAIN); + } + erts_release_code_write_permission(); + return ret; } static void @@ -690,92 +1046,48 @@ decrement_refc(BeamInstr* code) } } -static void -remove_from_address_table(BeamInstr* code) -{ - int i; - - for (i = 0; i < num_loaded_modules; i++) { - if (modules[i].start == code) { - num_loaded_modules--; - while (i < num_loaded_modules) { - modules[i] = modules[i+1]; - i++; - } - mid_module = &modules[num_loaded_modules/2]; - return; - } - } - ASSERT(0); /* Not found? */ -} - - /* - * Move code from current to old. + * Move code from current to old and null all export entries for the module */ -static void -delete_code(Process *c_p, ErtsProcLocks c_p_locks, Module* modp) -{ -#ifdef ERTS_ENABLE_LOCK_CHECK -#ifdef ERTS_SMP - if (c_p && c_p_locks) - erts_proc_lc_chk_only_proc_main(c_p); - else -#endif - erts_lc_check_exact(NULL, 0); -#endif - - /* - * Clear breakpoints if any - */ - if (modp->code != NULL && modp->code[MI_NUM_BREAKPOINTS] > 0) { - if (c_p && c_p_locks) - erts_smp_proc_unlock(c_p, ERTS_PROC_LOCK_MAIN); - erts_smp_thr_progress_block(); - erts_clear_module_break(modp); - modp->code[MI_NUM_BREAKPOINTS] = 0; - erts_smp_thr_progress_unblock(); - if (c_p && c_p_locks) - erts_smp_proc_lock(c_p, ERTS_PROC_LOCK_MAIN); - } - modp->old_code = modp->code; - modp->old_code_length = modp->code_length; - modp->old_catches = modp->catches; - modp->old_nif = modp->nif; - modp->code = NULL; - modp->code_length = 0; - modp->catches = BEAM_CATCHES_NIL; - modp->nif = NULL; -} - - -/* null all references on the export table for the module called with the - atom index below */ - static void -delete_export_references(Eterm module) +delete_code(Module* modp) { + ErtsCodeIndex code_ix = erts_staging_code_ix(); + Eterm module = make_atom(modp->module); int i; - ASSERT(is_atom(module)); - - for (i = 0; i < export_list_size(); i++) { - Export *ep = export_list(i); + for (i = 0; i < export_list_size(code_ix); i++) { + Export *ep = export_list(i, code_ix); if (ep != NULL && (ep->code[0] == module)) { - if (ep->address == ep->code+3 && - (ep->code[3] == (BeamInstr) em_apply_bif)) { - continue; + if (ep->addressv[code_ix] == ep->code+3) { + if (ep->code[3] == (BeamInstr) em_apply_bif) { + continue; + } + else if (ep->code[3] == + (BeamInstr) BeamOp(op_i_generic_breakpoint)) { + ERTS_SMP_LC_ASSERT(erts_smp_thr_progress_is_blocking()); + ASSERT(modp->curr.num_traced_exports > 0); + erts_clear_export_break(modp, ep->code+3); + } + else ASSERT(ep->code[3] == (BeamInstr) em_call_error_handler + || !erts_initialized); } - ep->address = ep->code+3; + ep->addressv[code_ix] = ep->code+3; ep->code[3] = (BeamInstr) em_call_error_handler; ep->code[4] = 0; - MatchSetUnref(ep->match_prog_set); - ep->match_prog_set = NULL; } } + + ASSERT(modp->curr.num_breakpoints == 0); + ASSERT(modp->curr.num_traced_exports == 0); + modp->old = modp->curr; + modp->curr.code = NULL; + modp->curr.code_length = 0; + modp->curr.catches = BEAM_CATCHES_NIL; + modp->curr.nif = NULL; } - + Eterm beam_make_current_old(Process *c_p, ErtsProcLocks c_p_locks, Eterm module) @@ -787,11 +1099,10 @@ beam_make_current_old(Process *c_p, ErtsProcLocks c_p_locks, Eterm module) * if not, delete old code; error if old code already exists. */ - if (modp->code != NULL && modp->old_code != NULL) { + if (modp->curr.code != NULL && modp->old.code != NULL) { return am_not_purged; - } else if (modp->old_code == NULL) { /* Make the current version old. */ - delete_code(c_p, c_p_locks, modp); - delete_export_references(module); + } else if (modp->old.code == NULL) { /* Make the current version old. */ + delete_code(modp); } return NIL; } @@ -799,7 +1110,21 @@ beam_make_current_old(Process *c_p, ErtsProcLocks c_p_locks, Eterm module) static int is_native(BeamInstr* code) { - return ((Eterm *)code[MI_FUNCTIONS])[1] != 0; + Uint i, num_functions = code[MI_NUM_FUNCTIONS]; + + /* Check NativeAdress of first real function in module + */ + for (i=0; i<num_functions; i++) { + BeamInstr* func_info = (BeamInstr *) code[MI_FUNCTIONS+i]; + Eterm name = (Eterm) func_info[3]; + + if (is_atom(name)) { + return func_info[1] != 0; + } + else ASSERT(is_nil(name)); /* ignore BIF stubs */ + } + /* Not a single non-BIF function? */ + return 0; } diff --git a/erts/emulator/beam/beam_bp.c b/erts/emulator/beam/beam_bp.c index d772bea02f..4e711c89e0 100644 --- a/erts/emulator/beam/beam_bp.c +++ b/erts/emulator/beam/beam_bp.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 2000-2012. All Rights Reserved. + * Copyright Ericsson AB 2000-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -44,67 +44,35 @@ #define ReAlloc(P, SIZ) erts_realloc(ERTS_ALC_T_BPD, (P), (SZ)) #define Free(P) erts_free(ERTS_ALC_T_BPD, (P)) -/* -** Doubly linked ring macros -*/ - -#define BpInit(a,i) \ -do { \ - (a)->orig_instr = (i); \ - (a)->next = (a); \ - (a)->prev = (a); \ -} while (0) - -#define BpSpliceNext(a,b) \ -do { \ - register BpData *c = (a), *d = (b), *e; \ - e = c->next->prev; \ - c->next->prev = d->next->prev; \ - d->next->prev = e; \ - e = c->next; \ - c->next = d->next; \ - d->next = e; \ -} while (0) - -#define BpSplicePrev(a,b) \ -do { \ - register BpData *c = (a), *d = (b), *e; \ - e = c->prev->next; \ - c->prev->next = d->prev->next; \ - d->prev->next = e; \ - e = c->prev; \ - c->prev = d->prev; \ - d->prev = e; \ -} while (0) - -#ifdef DEBUG -# define BpSingleton(a) ((a)->next == (a) && (a)->prev == (a)) +#if defined(ERTS_ENABLE_LOCK_CHECK) && defined(ERTS_SMP) +# define ERTS_SMP_REQ_PROC_MAIN_LOCK(P) \ + if ((P)) erts_proc_lc_require_lock((P), ERTS_PROC_LOCK_MAIN,\ + __FILE__, __LINE__) +# define ERTS_SMP_UNREQ_PROC_MAIN_LOCK(P) \ + if ((P)) erts_proc_lc_unrequire_lock((P), ERTS_PROC_LOCK_MAIN) #else -# define BpSingleton(a) ((a)->next == (a)) +# define ERTS_SMP_REQ_PROC_MAIN_LOCK(P) +# define ERTS_SMP_UNREQ_PROC_MAIN_LOCK(P) #endif -#define BpInitAndSpliceNext(a,i,b) \ -do { \ - (a)->orig_instr = (i); \ - (a)->prev = (b); \ - (b)->next->prev = (a); \ - (a)->next = (b)->next; \ - (b)->next = (a); \ -} while (0) +#define ERTS_BPF_LOCAL_TRACE 0x01 +#define ERTS_BPF_META_TRACE 0x02 +#define ERTS_BPF_COUNT 0x04 +#define ERTS_BPF_COUNT_ACTIVE 0x08 +#define ERTS_BPF_DEBUG 0x10 +#define ERTS_BPF_TIME_TRACE 0x20 +#define ERTS_BPF_TIME_TRACE_ACTIVE 0x40 +#define ERTS_BPF_GLOBAL_TRACE 0x80 -#define BpInitAndSplicePrev(a,i,b) \ -do { \ - (a)->orig_instr = (i); \ - (a)->next = (b); \ - (b)->prev->next = (a); \ - (a)->prev = (b)->prev; \ - (b)->prev = (a); \ -} while (0) +#define ERTS_BPF_ALL 0xFF +extern BeamInstr beam_return_to_trace[1]; /* OpCode(i_return_to_trace) */ +extern BeamInstr beam_return_trace[1]; /* OpCode(i_return_trace) */ +extern BeamInstr beam_exception_trace[1]; /* OpCode(i_exception_trace) */ +extern BeamInstr beam_return_time_trace[1]; /* OpCode(i_return_time_trace) */ -#define BREAK_IS_BIF (1) -#define BREAK_IS_ERL (0) - +erts_smp_atomic32_t erts_active_bp_index; +erts_smp_atomic32_t erts_staging_bp_index; /* ************************************************************************* ** Local prototypes @@ -113,26 +81,30 @@ do { \ /* ** Helpers */ - -static int set_break(Eterm mfa[3], int specified, - Binary *match_spec, BeamInstr break_op, - enum erts_break_op count_op, Eterm tracer_pid); -static int set_module_break(Module *modp, Eterm mfa[3], int specified, - Binary *match_spec, BeamInstr break_op, - enum erts_break_op count_op, Eterm tracer_pid); -static int set_function_break(Module *modp, BeamInstr *pc, int bif, - Binary *match_spec, BeamInstr break_op, - enum erts_break_op count_op, Eterm tracer_pid); - -static int clear_break(Eterm mfa[3], int specified, - BeamInstr break_op); -static int clear_module_break(Module *modp, Eterm mfa[3], int specified, - BeamInstr break_op); -static int clear_function_break(Module *modp, BeamInstr *pc, int bif, - BeamInstr break_op); - -static BpData *is_break(BeamInstr *pc, BeamInstr break_op); -static BpData *get_break(Process *p, BeamInstr *pc, BeamInstr break_op); +static Eterm do_call_trace(Process* c_p, BeamInstr* I, Eterm* reg, + int local, Binary* ms, Eterm tracer_pid); +static void set_break(BpFunctions* f, Binary *match_spec, Uint break_flags, + enum erts_break_op count_op, Eterm tracer_pid); +static void set_function_break(BeamInstr *pc, + Binary *match_spec, + Uint break_flags, + enum erts_break_op count_op, + Eterm tracer_pid); + +static void clear_break(BpFunctions* f, Uint break_flags); +static int clear_function_break(BeamInstr *pc, Uint break_flags); + +static BpDataTime* get_time_break(BeamInstr *pc); +static GenericBpData* check_break(BeamInstr *pc, Uint break_flags); +static void bp_time_diff(bp_data_time_item_t *item, + process_breakpoint_time_t *pbt, + Uint ms, Uint s, Uint us); + +static void bp_meta_unref(BpMetaPid* bmp); +static void bp_count_unref(BpCount* bcp); +static void bp_time_unref(BpDataTime* bdt); +static void consolidate_bp_data(Module* modp, BeamInstr* pc, int local); +static void uninstall_breakpoint(BeamInstr* pc); /* bp_hash */ #define BP_TIME_ADD(pi0, pi1) \ @@ -152,240 +124,997 @@ static ERTS_INLINE bp_data_time_item_t * bp_hash_get(bp_time_hash_t *hash, bp_da static ERTS_INLINE bp_data_time_item_t * bp_hash_put(bp_time_hash_t *hash, bp_data_time_item_t *sitem); static void bp_hash_delete(bp_time_hash_t *hash); - /* ************************************************************************* ** External interfaces */ -erts_smp_spinlock_t erts_bp_lock; - void erts_bp_init(void) { - erts_smp_spinlock_init(&erts_bp_lock, "breakpoints"); + erts_smp_atomic32_init_nob(&erts_active_bp_index, 0); + erts_smp_atomic32_init_nob(&erts_staging_bp_index, 1); } -int -erts_set_trace_break(Eterm mfa[3], int specified, Binary *match_spec, - Eterm tracer_pid) { - ERTS_SMP_LC_ASSERT(erts_smp_thr_progress_is_blocking()); - return set_break(mfa, specified, match_spec, - (BeamInstr) BeamOp(op_i_trace_breakpoint), 0, tracer_pid); + +void +erts_bp_match_functions(BpFunctions* f, Eterm mfa[3], int specified) +{ + ErtsCodeIndex code_ix = erts_active_code_ix(); + Uint max_funcs = 0; + int current; + int max_modules = module_code_size(code_ix); + int num_modules = 0; + Module* modp; + Module** module; + Uint i; + + module = (Module **) Alloc(max_modules*sizeof(Module *)); + num_modules = 0; + for (current = 0; current < max_modules; current++) { + modp = module_code(current, code_ix); + if (modp->curr.code) { + max_funcs += modp->curr.code[MI_NUM_FUNCTIONS]; + module[num_modules++] = modp; + } + } + + f->matching = (BpFunction *) Alloc(max_funcs*sizeof(BpFunction)); + i = 0; + for (current = 0; current < num_modules; current++) { + BeamInstr** code_base = (BeamInstr **) module[current]->curr.code; + BeamInstr* code; + Uint num_functions = (Uint)(UWord) code_base[MI_NUM_FUNCTIONS]; + Uint fi; + + if (specified > 0) { + if (mfa[0] != make_atom(module[current]->module)) { + /* Wrong module name */ + continue; + } + } + + for (fi = 0; fi < num_functions; fi++) { + BeamInstr* pc; + int wi; + + code = code_base[MI_FUNCTIONS+fi]; + ASSERT(code[0] == (BeamInstr) BeamOp(op_i_func_info_IaaI)); + pc = code+5; + if (erts_is_native_break(pc)) { + continue; + } + if (is_nil(code[3])) { /* Ignore BIF stub */ + continue; + } + for (wi = 0; + wi < specified && (Eterm) code[2+wi] == mfa[wi]; + wi++) { + /* Empty loop body */ + } + if (wi == specified) { + /* Store match */ + f->matching[i].pc = pc; + f->matching[i].mod = module[current]; + i++; + } + } + } + f->matched = i; + Free(module); } -int -erts_set_mtrace_break(Eterm mfa[3], int specified, Binary *match_spec, - Eterm tracer_pid) { - ERTS_SMP_LC_ASSERT(erts_smp_thr_progress_is_blocking()); - return set_break(mfa, specified, match_spec, - (BeamInstr) BeamOp(op_i_mtrace_breakpoint), 0, tracer_pid); +void +erts_bp_match_export(BpFunctions* f, Eterm mfa[3], int specified) +{ + ErtsCodeIndex code_ix = erts_active_code_ix(); + int i; + int num_exps = export_list_size(code_ix); + int ne; + + f->matching = (BpFunction *) Alloc(num_exps*sizeof(BpFunction)); + ne = 0; + for (i = 0; i < num_exps; i++) { + Export* ep = export_list(i, code_ix); + BeamInstr* pc; + int j; + + for (j = 0; j < specified && mfa[j] == ep->code[j]; j++) { + /* Empty loop body */ + } + if (j < specified) { + continue; + } + pc = ep->code+3; + if (ep->addressv[code_ix] == pc) { + if ((*pc == (BeamInstr) em_apply_bif || + *pc == (BeamInstr) em_call_error_handler)) { + continue; + } + ASSERT(*pc == (BeamInstr) BeamOp(op_i_generic_breakpoint)); + } else if (erts_is_native_break(ep->addressv[code_ix])) { + continue; + } + + f->matching[ne].pc = pc; + f->matching[ne].mod = erts_get_module(ep->code[0], code_ix); + ne++; + + } + f->matched = ne; } -/* set breakpoint data for on exported bif entry */ +void +erts_bp_free_matched_functions(BpFunctions* f) +{ + Free(f->matching); +} void -erts_set_mtrace_bif(BeamInstr *pc, Binary *match_spec, Eterm tracer_pid) { - ERTS_SMP_LC_ASSERT(erts_smp_thr_progress_is_blocking()); - set_function_break(NULL, pc, BREAK_IS_BIF, match_spec, (BeamInstr) BeamOp(op_i_mtrace_breakpoint), 0, tracer_pid); +erts_consolidate_bp_data(BpFunctions* f, int local) +{ + BpFunction* fs = f->matching; + Uint i; + Uint n = f->matched; + + ERTS_SMP_LC_ASSERT(erts_has_code_write_permission()); + + for (i = 0; i < n; i++) { + consolidate_bp_data(fs[i].mod, fs[i].pc, local); + } } -void erts_set_time_trace_bif(BeamInstr *pc, enum erts_break_op count_op) { - set_function_break(NULL, pc, BREAK_IS_BIF, NULL, (BeamInstr) BeamOp(op_i_time_breakpoint), count_op, NIL); +void +erts_consolidate_bif_bp_data(void) +{ + int i; + + ERTS_SMP_LC_ASSERT(erts_has_code_write_permission()); + for (i = 0; i < BIF_SIZE; i++) { + Export *ep = bif_export[i]; + consolidate_bp_data(0, ep->code+3, 0); + } } -void erts_clear_time_trace_bif(BeamInstr *pc) { - clear_function_break(NULL, pc, BREAK_IS_BIF, (BeamInstr) BeamOp(op_i_time_breakpoint)); +static void +consolidate_bp_data(Module* modp, BeamInstr* pc, int local) +{ + GenericBp* g = (GenericBp *) pc[-4]; + GenericBpData* src; + GenericBpData* dst; + Uint flags; + + if (g == 0) { + return; + } + + src = &g->data[erts_active_bp_ix()]; + dst = &g->data[erts_staging_bp_ix()]; + + /* + * The contents of the staging area may be out of date. + * Decrement all reference pointers. + */ + + flags = dst->flags; + if (flags & (ERTS_BPF_LOCAL_TRACE|ERTS_BPF_GLOBAL_TRACE)) { + MatchSetUnref(dst->local_ms); + } + if (flags & ERTS_BPF_META_TRACE) { + bp_meta_unref(dst->meta_pid); + MatchSetUnref(dst->meta_ms); + } + if (flags & ERTS_BPF_COUNT) { + bp_count_unref(dst->count); + } + if (flags & ERTS_BPF_TIME_TRACE) { + bp_time_unref(dst->time); + } + + /* + * If all flags are zero, deallocate all breakpoint data. + */ + + flags = dst->flags = src->flags; + if (flags == 0) { + if (modp) { + if (local) { + modp->curr.num_breakpoints--; + } else { + modp->curr.num_traced_exports--; + } + ASSERT(modp->curr.num_breakpoints >= 0); + ASSERT(modp->curr.num_traced_exports >= 0); + ASSERT(*pc != (BeamInstr) BeamOp(op_i_generic_breakpoint)); + } + pc[-4] = 0; + Free(g); + return; + } + + /* + * Copy the active data to the staging area (making it ready + * for the next time it will be used). + */ + + if (flags & (ERTS_BPF_LOCAL_TRACE|ERTS_BPF_GLOBAL_TRACE)) { + dst->local_ms = src->local_ms; + MatchSetRef(dst->local_ms); + } + if (flags & ERTS_BPF_META_TRACE) { + dst->meta_pid = src->meta_pid; + erts_refc_inc(&dst->meta_pid->refc, 1); + dst->meta_ms = src->meta_ms; + MatchSetRef(dst->meta_ms); + } + if (flags & ERTS_BPF_COUNT) { + dst->count = src->count; + erts_refc_inc(&dst->count->refc, 1); + } + if (flags & ERTS_BPF_TIME_TRACE) { + dst->time = src->time; + erts_refc_inc(&dst->time->refc, 1); + ASSERT(dst->time->hash); + } } -int -erts_set_debug_break(Eterm mfa[3], int specified) { - ERTS_SMP_LC_ASSERT(erts_smp_thr_progress_is_blocking()); - return set_break(mfa, specified, NULL, - (BeamInstr) BeamOp(op_i_debug_breakpoint), 0, NIL); +void +erts_commit_staged_bp(void) +{ + ErtsBpIndex staging = erts_staging_bp_ix(); + ErtsBpIndex active = erts_active_bp_ix(); + + erts_smp_atomic32_set_nob(&erts_active_bp_index, staging); + erts_smp_atomic32_set_nob(&erts_staging_bp_index, active); } -int -erts_set_count_break(Eterm mfa[3], int specified, enum erts_break_op count_op) { - ERTS_SMP_LC_ASSERT(erts_smp_thr_progress_is_blocking()); - return set_break(mfa, specified, NULL, - (BeamInstr) BeamOp(op_i_count_breakpoint), count_op, NIL); +void +erts_install_breakpoints(BpFunctions* f) +{ + Uint i; + Uint n = f->matched; + BeamInstr br = (BeamInstr) BeamOp(op_i_generic_breakpoint); + + for (i = 0; i < n; i++) { + BeamInstr* pc = f->matching[i].pc; + GenericBp* g = (GenericBp *) pc[-4]; + if (*pc != br && g) { + Module* modp = f->matching[i].mod; + + /* + * The breakpoint must be disabled in the active data + * (it will enabled later by switching bp indices), + * and enabled in the staging data. + */ + ASSERT(g->data[erts_active_bp_ix()].flags == 0); + ASSERT(g->data[erts_staging_bp_ix()].flags != 0); + + /* + * The following write is not protected by any lock. We + * assume that the hardware guarantees that a write of an + * aligned word-size (or half-word) writes is atomic + * (i.e. that other processes executing this code will not + * see a half pointer). + */ + *pc = br; + modp->curr.num_breakpoints++; + } + } } -int -erts_set_time_break(Eterm mfa[3], int specified, enum erts_break_op count_op) { - ERTS_SMP_LC_ASSERT(erts_smp_thr_progress_is_blocking()); - return set_break(mfa, specified, NULL, - (BeamInstr) BeamOp(op_i_time_breakpoint), count_op, NIL); +void +erts_uninstall_breakpoints(BpFunctions* f) +{ + Uint i; + Uint n = f->matched; + + for (i = 0; i < n; i++) { + BeamInstr* pc = f->matching[i].pc; + uninstall_breakpoint(pc); + } } -int -erts_clear_trace_break(Eterm mfa[3], int specified) { - ERTS_SMP_LC_ASSERT(erts_smp_thr_progress_is_blocking()); - return clear_break(mfa, specified, - (BeamInstr) BeamOp(op_i_trace_breakpoint)); +static void +uninstall_breakpoint(BeamInstr* pc) +{ + if (*pc == (BeamInstr) BeamOp(op_i_generic_breakpoint)) { + GenericBp* g = (GenericBp *) pc[-4]; + if (g->data[erts_active_bp_ix()].flags == 0) { + /* + * The following write is not protected by any lock. We + * assume that the hardware guarantees that a write of an + * aligned word-size (or half-word) writes is atomic + * (i.e. that other processes executing this code will not + * see a half pointer). + */ + *pc = g->orig_instr; + } + } } -int -erts_clear_mtrace_break(Eterm mfa[3], int specified) { - ERTS_SMP_LC_ASSERT(erts_smp_thr_progress_is_blocking()); - return clear_break(mfa, specified, - (BeamInstr) BeamOp(op_i_mtrace_breakpoint)); +void +erts_set_trace_break(BpFunctions* f, Binary *match_spec) +{ + set_break(f, match_spec, ERTS_BPF_LOCAL_TRACE, 0, am_true); } void -erts_clear_mtrace_bif(BeamInstr *pc) { - clear_function_break(NULL, pc, BREAK_IS_BIF, (BeamInstr) BeamOp(op_i_mtrace_breakpoint)); +erts_set_mtrace_break(BpFunctions* f, Binary *match_spec, Eterm tracer_pid) +{ + set_break(f, match_spec, ERTS_BPF_META_TRACE, 0, tracer_pid); } -int -erts_clear_debug_break(Eterm mfa[3], int specified) { - ERTS_SMP_LC_ASSERT(erts_smp_thr_progress_is_blocking()); - return clear_break(mfa, specified, - (BeamInstr) BeamOp(op_i_debug_breakpoint)); +void +erts_set_call_trace_bif(BeamInstr *pc, Binary *match_spec, int local) +{ + Uint flags = local ? ERTS_BPF_LOCAL_TRACE : ERTS_BPF_GLOBAL_TRACE; + + set_function_break(pc, match_spec, flags, 0, NIL); } -int -erts_clear_count_break(Eterm mfa[3], int specified) { - ERTS_SMP_LC_ASSERT(erts_smp_thr_progress_is_blocking()); - return clear_break(mfa, specified, - (BeamInstr) BeamOp(op_i_count_breakpoint)); +void +erts_set_mtrace_bif(BeamInstr *pc, Binary *match_spec, Eterm tracer_pid) +{ + set_function_break(pc, match_spec, ERTS_BPF_META_TRACE, 0, tracer_pid); } -int -erts_clear_time_break(Eterm mfa[3], int specified) { - ERTS_SMP_LC_ASSERT(erts_smp_thr_progress_is_blocking()); - return clear_break(mfa, specified, - (BeamInstr) BeamOp(op_i_time_breakpoint)); +void +erts_set_time_trace_bif(BeamInstr *pc, enum erts_break_op count_op) +{ + set_function_break(pc, NULL, + ERTS_BPF_TIME_TRACE|ERTS_BPF_TIME_TRACE_ACTIVE, + count_op, NIL); } -int -erts_clear_break(Eterm mfa[3], int specified) { +void +erts_clear_time_trace_bif(BeamInstr *pc) { + clear_function_break(pc, ERTS_BPF_TIME_TRACE|ERTS_BPF_TIME_TRACE_ACTIVE); +} + +void +erts_set_debug_break(BpFunctions* f) { + set_break(f, NULL, ERTS_BPF_DEBUG, 0, NIL); +} + +void +erts_set_count_break(BpFunctions* f, enum erts_break_op count_op) +{ + set_break(f, 0, ERTS_BPF_COUNT|ERTS_BPF_COUNT_ACTIVE, + count_op, NIL); +} + +void +erts_set_time_break(BpFunctions* f, enum erts_break_op count_op) +{ + set_break(f, 0, ERTS_BPF_TIME_TRACE|ERTS_BPF_TIME_TRACE_ACTIVE, + count_op, NIL); +} + +void +erts_clear_trace_break(BpFunctions* f) +{ + clear_break(f, ERTS_BPF_LOCAL_TRACE); +} + +void +erts_clear_call_trace_bif(BeamInstr *pc, int local) +{ + GenericBp* g = (GenericBp *) pc[-4]; + + if (g) { + Uint flags = local ? ERTS_BPF_LOCAL_TRACE : ERTS_BPF_GLOBAL_TRACE; + if (g->data[erts_staging_bp_ix()].flags & flags) { + clear_function_break(pc, flags); + } + } +} + +void +erts_clear_mtrace_break(BpFunctions* f) +{ + clear_break(f, ERTS_BPF_META_TRACE); +} + +void +erts_clear_mtrace_bif(BeamInstr *pc) +{ + clear_function_break(pc, ERTS_BPF_META_TRACE); +} + +void +erts_clear_debug_break(BpFunctions* f) +{ ERTS_SMP_LC_ASSERT(erts_smp_thr_progress_is_blocking()); - return clear_break(mfa, specified, 0); + clear_break(f, ERTS_BPF_DEBUG); +} + +void +erts_clear_count_break(BpFunctions* f) +{ + clear_break(f, ERTS_BPF_COUNT|ERTS_BPF_COUNT_ACTIVE); +} + +void +erts_clear_time_break(BpFunctions* f) +{ + clear_break(f, ERTS_BPF_TIME_TRACE|ERTS_BPF_TIME_TRACE_ACTIVE); +} + +void +erts_clear_all_breaks(BpFunctions* f) +{ + clear_break(f, ERTS_BPF_ALL); } int erts_clear_module_break(Module *modp) { + BeamInstr** code_base; + Uint n; + Uint i; + ERTS_SMP_LC_ASSERT(erts_smp_thr_progress_is_blocking()); ASSERT(modp); - return clear_module_break(modp, NULL, 0, 0); + code_base = (BeamInstr **) modp->curr.code; + if (code_base == NULL) { + return 0; + } + n = (Uint)(UWord) code_base[MI_NUM_FUNCTIONS]; + for (i = 0; i < n; ++i) { + BeamInstr* pc; + + pc = code_base[MI_FUNCTIONS+i] + 5; + if (erts_is_native_break(pc)) { + continue; + } + clear_function_break(pc, ERTS_BPF_ALL); + } + + erts_commit_staged_bp(); + + for (i = 0; i < n; ++i) { + BeamInstr* pc; + + pc = code_base[MI_FUNCTIONS+i] + 5; + if (erts_is_native_break(pc)) { + continue; + } + uninstall_breakpoint(pc); + consolidate_bp_data(modp, pc, 1); + ASSERT(pc[-4] == 0); + } + return n; } -int -erts_clear_function_break(Module *modp, BeamInstr *pc) { +void +erts_clear_export_break(Module* modp, BeamInstr* pc) +{ ERTS_SMP_LC_ASSERT(erts_smp_thr_progress_is_blocking()); - ASSERT(modp); - return clear_function_break(modp, pc, BREAK_IS_ERL, 0); + + clear_function_break(pc, ERTS_BPF_ALL); + erts_commit_staged_bp(); + *pc = (BeamInstr) 0; + consolidate_bp_data(modp, pc, 0); + ASSERT(pc[-4] == 0); } +BeamInstr +erts_generic_breakpoint(Process* c_p, BeamInstr* I, Eterm* reg) +{ + GenericBp* g; + GenericBpData* bp; + Uint bp_flags; + ErtsBpIndex ix = erts_active_bp_ix(); + + g = (GenericBp *) I[-4]; + bp = &g->data[ix]; + bp_flags = bp->flags; + ASSERT((bp_flags & ~ERTS_BPF_ALL) == 0); + if (bp_flags & (ERTS_BPF_LOCAL_TRACE| + ERTS_BPF_GLOBAL_TRACE| + ERTS_BPF_TIME_TRACE_ACTIVE) && + !IS_TRACED_FL(c_p, F_TRACE_CALLS)) { + bp_flags &= ~(ERTS_BPF_LOCAL_TRACE| + ERTS_BPF_GLOBAL_TRACE| + ERTS_BPF_TIME_TRACE| + ERTS_BPF_TIME_TRACE_ACTIVE); + if (bp_flags == 0) { /* Quick exit */ + return g->orig_instr; + } + } + + if (bp_flags & ERTS_BPF_LOCAL_TRACE) { + ASSERT((bp_flags & ERTS_BPF_GLOBAL_TRACE) == 0); + (void) do_call_trace(c_p, I, reg, 1, bp->local_ms, am_true); + } else if (bp_flags & ERTS_BPF_GLOBAL_TRACE) { + (void) do_call_trace(c_p, I, reg, 0, bp->local_ms, am_true); + } + + if (bp_flags & ERTS_BPF_META_TRACE) { + Eterm old_pid; + Eterm new_pid; + + old_pid = (Eterm) erts_smp_atomic_read_nob(&bp->meta_pid->pid); + new_pid = do_call_trace(c_p, I, reg, 1, bp->meta_ms, old_pid); + if (new_pid != old_pid) { + erts_smp_atomic_set_nob(&bp->meta_pid->pid, new_pid); + } + } + + if (bp_flags & ERTS_BPF_COUNT_ACTIVE) { + erts_smp_atomic_inc_nob(&bp->count->acount); + } + + if (bp_flags & ERTS_BPF_TIME_TRACE_ACTIVE && erts_is_tracer_proc_valid(c_p)) { + Eterm w; + erts_trace_time_call(c_p, I, bp->time); + w = (BeamInstr) *c_p->cp; + if (! (w == (BeamInstr) BeamOp(op_i_return_time_trace) || + w == (BeamInstr) BeamOp(op_return_trace) || + w == (BeamInstr) BeamOp(op_i_return_to_trace)) ) { + Eterm* E = c_p->stop; + ASSERT(c_p->htop <= E && E <= c_p->hend); + if (E - 2 < c_p->htop) { + (void) erts_garbage_collect(c_p, 2, reg, I[-1]); + ERTS_VERIFY_UNUSED_TEMP_ALLOC(c_p); + } + E = c_p->stop; + ASSERT(c_p->htop <= E && E <= c_p->hend); + + E -= 2; + E[0] = make_cp(I); + E[1] = make_cp(c_p->cp); /* original return address */ + c_p->cp = beam_return_time_trace; + c_p->stop = E; + } + } + + if (bp_flags & ERTS_BPF_DEBUG) { + return (BeamInstr) BeamOp(op_i_debug_breakpoint); + } else { + return g->orig_instr; + } +} /* - * SMP NOTE: Process p may have become exiting on return! + * Entry point called by the trace wrap functions in erl_bif_wrap.c + * + * The trace wrap functions are themselves called through the export + * entries instead of the original BIF functions. */ -BeamInstr -erts_trace_break(Process *p, BeamInstr *pc, Eterm *args, - Uint32 *ret_flags, Eterm *tracer_pid) { - Eterm tpid1, tpid2; - BpData **bds = (BpData **) (pc)[-4]; - BpDataTrace *bdt = NULL; +Eterm +erts_bif_trace(int bif_index, Process* p, Eterm* args, BeamInstr* I) +{ + Eterm result; + Eterm (*func)(Process*, Eterm*, BeamInstr*); + Export* ep = bif_export[bif_index]; + Uint32 flags = 0, flags_meta = 0; + Eterm meta_tracer_pid = NIL; + int applying = (I == &(ep->code[3])); /* Yup, the apply code for a bif + * is actually in the + * export entry */ + BeamInstr *cp = p->cp; + GenericBp* g; + GenericBpData* bp = NULL; + Uint bp_flags = 0; + + ERTS_SMP_CHK_HAVE_ONLY_MAIN_PROC_LOCK(p); + + g = (GenericBp *) ep->fake_op_func_info_for_hipe[1]; + if (g) { + bp = &g->data[erts_active_bp_ix()]; + bp_flags = bp->flags; + } - ASSERT(bds); - ASSERT(pc[-5] == (BeamInstr) BeamOp(op_i_func_info_IaaI)); - bdt = (BpDataTrace *) bds[bp_sched2ix_proc(p)]; - ASSERT(bdt); - bdt = (BpDataTrace *) bdt->next; - ASSERT(bdt); - ASSERT(ret_flags); - ASSERT(tracer_pid); - - ErtsSmpBPLock(bdt); - tpid1 = tpid2 = bdt->tracer_pid; - ErtsSmpBPUnlock(bdt); - - *ret_flags = erts_call_trace(p, pc-3/*mfa*/, bdt->match_spec, args, - 1, &tpid2); - *tracer_pid = tpid2; - if (tpid1 != tpid2) { - ErtsSmpBPLock(bdt); - bdt->tracer_pid = tpid2; - ErtsSmpBPUnlock(bdt); - } - bds[bp_sched2ix_proc(p)] = (BpData *) bdt; - return bdt->orig_instr; + /* + * Make continuation pointer OK, it is not during direct BIF calls, + * but it is correct during apply of bif. + */ + if (!applying) { + p->cp = I; + } + if (bp_flags & (ERTS_BPF_LOCAL_TRACE|ERTS_BPF_GLOBAL_TRACE) && + IS_TRACED_FL(p, F_TRACE_CALLS)) { + int local = !!(bp_flags & ERTS_BPF_LOCAL_TRACE); + flags = erts_call_trace(p, ep->code, bp->local_ms, args, + local, &ERTS_TRACER_PROC(p)); + } + if (bp_flags & ERTS_BPF_META_TRACE) { + Eterm tpid1, tpid2; + + tpid1 = tpid2 = + (Eterm) erts_smp_atomic_read_nob(&bp->meta_pid->pid); + flags_meta = erts_call_trace(p, ep->code, bp->meta_ms, args, + 0, &tpid2); + meta_tracer_pid = tpid2; + if (tpid1 != tpid2) { + erts_smp_atomic_set_nob(&bp->meta_pid->pid, tpid2); + } + } + if (bp_flags & ERTS_BPF_TIME_TRACE_ACTIVE && + IS_TRACED_FL(p, F_TRACE_CALLS) && + erts_is_tracer_proc_valid(p)) { + BeamInstr *pc = (BeamInstr *)ep->code+3; + erts_trace_time_call(p, pc, bp->time); + } + + /* Restore original continuation pointer (if changed). */ + p->cp = cp; + + func = bif_table[bif_index].f; + + result = func(p, args, I); + + if (applying && (flags & MATCH_SET_RETURN_TO_TRACE)) { + BeamInstr i_return_trace = beam_return_trace[0]; + BeamInstr i_return_to_trace = beam_return_to_trace[0]; + BeamInstr i_return_time_trace = beam_return_time_trace[0]; + Eterm *cpp; + /* Maybe advance cp to skip trace stack frames */ + for (cpp = p->stop; ; cp = cp_val(*cpp++)) { + if (*cp == i_return_trace) { + /* Skip stack frame variables */ + while (is_not_CP(*cpp)) cpp++; + cpp += 2; /* Skip return_trace parameters */ + } else if (*cp == i_return_time_trace) { + /* Skip stack frame variables */ + while (is_not_CP(*cpp)) cpp++; + cpp += 1; /* Skip return_time_trace parameters */ + } else if (*cp == i_return_to_trace) { + /* A return_to trace message is going to be generated + * by normal means, so we do not have to. + */ + cp = NULL; + break; + } else break; + } + } + + /* Try to get these in the order + * they usually appear in normal code... */ + if (is_non_value(result)) { + Uint reason = p->freason; + if (reason != TRAP) { + Eterm class; + Eterm value = p->fvalue; + DeclareTmpHeapNoproc(nocatch,3); + UseTmpHeapNoproc(3); + /* Expand error value like in handle_error() */ + if (reason & EXF_ARGLIST) { + Eterm *tp; + ASSERT(is_tuple(value)); + tp = tuple_val(value); + value = tp[1]; + } + if ((reason & EXF_THROWN) && (p->catches <= 0)) { + value = TUPLE2(nocatch, am_nocatch, value); + reason = EXC_ERROR; + } + /* Note: expand_error_value() could theoretically + * allocate on the heap, but not for any error + * returned by a BIF, and it would do no harm, + * just be annoying. + */ + value = expand_error_value(p, reason, value); + class = exception_tag[GET_EXC_CLASS(reason)]; + + if (flags_meta & MATCH_SET_EXCEPTION_TRACE) { + erts_trace_exception(p, ep->code, class, value, + &meta_tracer_pid); + } + if (flags & MATCH_SET_EXCEPTION_TRACE) { + erts_trace_exception(p, ep->code, class, value, + &ERTS_TRACER_PROC(p)); + } + if ((flags & MATCH_SET_RETURN_TO_TRACE) && p->catches > 0) { + /* can only happen if(local)*/ + Eterm *ptr = p->stop; + ASSERT(is_CP(*ptr)); + ASSERT(ptr <= STACK_START(p)); + /* Search the nearest stack frame for a catch */ + while (++ptr < STACK_START(p)) { + if (is_CP(*ptr)) break; + if (is_catch(*ptr)) { + if (applying) { + /* Apply of BIF, cp is in calling function */ + if (cp) erts_trace_return_to(p, cp); + } else { + /* Direct bif call, I points into + * calling function */ + erts_trace_return_to(p, I); + } + } + } + } + UnUseTmpHeapNoproc(3); + if ((flags_meta|flags) & MATCH_SET_EXCEPTION_TRACE) { + erts_smp_proc_lock(p, ERTS_PROC_LOCKS_ALL_MINOR); + ERTS_TRACE_FLAGS(p) |= F_EXCEPTION_TRACE; + erts_smp_proc_unlock(p, ERTS_PROC_LOCKS_ALL_MINOR); + } + } + } else { + if (flags_meta & MATCH_SET_RX_TRACE) { + erts_trace_return(p, ep->code, result, &meta_tracer_pid); + } + /* MATCH_SET_RETURN_TO_TRACE cannot occur if(meta) */ + if (flags & MATCH_SET_RX_TRACE) { + erts_trace_return(p, ep->code, result, &ERTS_TRACER_PROC(p)); + } + if (flags & MATCH_SET_RETURN_TO_TRACE) { + /* can only happen if(local)*/ + if (applying) { + /* Apply of BIF, cp is in calling function */ + if (cp) erts_trace_return_to(p, cp); + } else { + /* Direct bif call, I points into calling function */ + erts_trace_return_to(p, I); + } + } + } + ERTS_SMP_CHK_HAVE_ONLY_MAIN_PROC_LOCK(p); + return result; } +static Eterm +do_call_trace(Process* c_p, BeamInstr* I, Eterm* reg, + int local, Binary* ms, Eterm tracer_pid) +{ + Eterm* cpp; + int return_to_trace = 0; + BeamInstr w; + BeamInstr *cp_save; + Uint32 flags; + Uint need = 0; + Eterm* E = c_p->stop; + + w = *c_p->cp; + if (w == (BeamInstr) BeamOp(op_return_trace)) { + cpp = &E[2]; + } else if (w == (BeamInstr) BeamOp(op_i_return_to_trace)) { + return_to_trace = 1; + cpp = &E[0]; + } else if (w == (BeamInstr) BeamOp(op_i_return_time_trace)) { + cpp = &E[0]; + } else { + cpp = NULL; + } + if (cpp) { + for (;;) { + BeamInstr w = *cp_val(*cpp); + if (w == (BeamInstr) BeamOp(op_return_trace)) { + cpp += 3; + } else if (w == (BeamInstr) BeamOp(op_i_return_to_trace)) { + return_to_trace = 1; + cpp += 1; + } else if (w == (BeamInstr) BeamOp(op_i_return_time_trace)) { + cpp += 2; + } else { + break; + } + } + cp_save = c_p->cp; + c_p->cp = (BeamInstr *) cp_val(*cpp); + ASSERT(is_CP(*cpp)); + } + ERTS_SMP_UNREQ_PROC_MAIN_LOCK(c_p); + flags = erts_call_trace(c_p, I-3, ms, reg, local, &tracer_pid); + ERTS_SMP_REQ_PROC_MAIN_LOCK(c_p); + if (cpp) { + c_p->cp = cp_save; + } + + ASSERT(!ERTS_PROC_IS_EXITING(c_p)); + if ((flags & MATCH_SET_RETURN_TO_TRACE) && !return_to_trace) { + need += 1; + } + if (flags & MATCH_SET_RX_TRACE) { + need += 3; + } + if (need) { + ASSERT(c_p->htop <= E && E <= c_p->hend); + if (E - need < c_p->htop) { + (void) erts_garbage_collect(c_p, need, reg, I[-1]); + ERTS_VERIFY_UNUSED_TEMP_ALLOC(c_p); + E = c_p->stop; + } + } + if (flags & MATCH_SET_RETURN_TO_TRACE && !return_to_trace) { + E -= 1; + ASSERT(c_p->htop <= E && E <= c_p->hend); + E[0] = make_cp(c_p->cp); + c_p->cp = beam_return_to_trace; + } + if (flags & MATCH_SET_RX_TRACE) { + E -= 3; + ASSERT(c_p->htop <= E && E <= c_p->hend); + ASSERT(is_CP((Eterm) (UWord) (I - 3))); + ASSERT(am_true == tracer_pid || + is_internal_pid(tracer_pid) || is_internal_port(tracer_pid)); + E[2] = make_cp(c_p->cp); + E[1] = tracer_pid; + E[0] = make_cp(I - 3); /* We ARE at the beginning of an + instruction, + the funcinfo is above i. */ + c_p->cp = (flags & MATCH_SET_EXCEPTION_TRACE) ? + beam_exception_trace : beam_return_trace; + erts_smp_proc_lock(c_p, ERTS_PROC_LOCKS_ALL_MINOR); + ERTS_TRACE_FLAGS(c_p) |= F_EXCEPTION_TRACE; + erts_smp_proc_unlock(c_p, ERTS_PROC_LOCKS_ALL_MINOR); + } + c_p->stop = E; + return tracer_pid; +} +void +erts_trace_time_call(Process* c_p, BeamInstr* I, BpDataTime* bdt) +{ + Uint ms,s,us; + process_breakpoint_time_t *pbt = NULL; + bp_data_time_item_t sitem, *item = NULL; + bp_time_hash_t *h = NULL; + BpDataTime *pbdt = NULL; -/* - * SMP NOTE: Process p may have become exiting on return! - */ -Uint32 -erts_bif_mtrace(Process *p, BeamInstr *pc, Eterm *args, int local, - Eterm *tracer_pid) { - BpData **bds = (BpData **) (pc)[-4]; - BpDataTrace *bdt = NULL; + ASSERT(c_p); + ASSERT(erts_smp_atomic32_read_acqb(&c_p->state) & ERTS_PSFLG_RUNNING); + /* get previous timestamp and breakpoint + * from the process psd */ - ASSERT(tracer_pid); - if (bds) { - Eterm tpid1, tpid2; - Uint32 flags; - bdt = (BpDataTrace *)bds[bp_sched2ix_proc(p)]; + pbt = ERTS_PROC_GET_CALL_TIME(c_p); + get_sys_now(&ms, &s, &us); - ErtsSmpBPLock(bdt); - tpid1 = tpid2 = bdt->tracer_pid; - ErtsSmpBPUnlock(bdt); + /* get pbt + * timestamp = t0 + * lookup bdt from code + * set ts0 to pbt + * add call count here? + */ + if (pbt == 0) { + /* First call of process to instrumented function */ + pbt = Alloc(sizeof(process_breakpoint_time_t)); + (void) ERTS_PROC_SET_CALL_TIME(c_p, ERTS_PROC_LOCK_MAIN, pbt); + } else { + ASSERT(pbt->pc); + /* add time to previous code */ + bp_time_diff(&sitem, pbt, ms, s, us); + sitem.pid = c_p->common.id; + sitem.count = 0; - flags = erts_call_trace(p, pc-3/*mfa*/, bdt->match_spec, args, - local, &tpid2); - *tracer_pid = tpid2; - if (tpid1 != tpid2) { - ErtsSmpBPLock(bdt); - bdt->tracer_pid = tpid2; - ErtsSmpBPUnlock(bdt); + /* previous breakpoint */ + pbdt = get_time_break(pbt->pc); + + /* if null then the breakpoint was removed */ + if (pbdt) { + h = &(pbdt->hash[bp_sched2ix_proc(c_p)]); + + ASSERT(h); + ASSERT(h->item); + + item = bp_hash_get(h, &sitem); + if (!item) { + item = bp_hash_put(h, &sitem); + } else { + BP_TIME_ADD(item, &sitem); + } } - return flags; } - *tracer_pid = NIL; - return 0; + + /* Add count to this code */ + sitem.pid = c_p->common.id; + sitem.count = 1; + sitem.s_time = 0; + sitem.us_time = 0; + + /* this breakpoint */ + ASSERT(bdt); + h = &(bdt->hash[bp_sched2ix_proc(c_p)]); + + ASSERT(h); + ASSERT(h->item); + + item = bp_hash_get(h, &sitem); + if (!item) { + item = bp_hash_put(h, &sitem); + } else { + BP_TIME_ADD(item, &sitem); + } + + pbt->pc = I; + pbt->ms = ms; + pbt->s = s; + pbt->us = us; } +void +erts_trace_time_return(Process *p, BeamInstr *pc) +{ + Uint ms,s,us; + process_breakpoint_time_t *pbt = NULL; + bp_data_time_item_t sitem, *item = NULL; + bp_time_hash_t *h = NULL; + BpDataTime *pbdt = NULL; + + ASSERT(p); + ASSERT(erts_smp_atomic32_read_acqb(&p->state) & ERTS_PSFLG_RUNNING); + /* get previous timestamp and breakpoint + * from the process psd */ + + pbt = ERTS_PROC_GET_CALL_TIME(p); + get_sys_now(&ms,&s,&us); + + /* get pbt + * lookup bdt from code + * timestamp = t1 + * get ts0 from pbt + * get item from bdt->hash[bp_hash(p->id)] + * ack diff (t1, t0) to item + */ + + if (pbt) { + /* might have been removed due to + * trace_pattern(false) + */ + ASSERT(pbt->pc); + + bp_time_diff(&sitem, pbt, ms, s, us); + sitem.pid = p->common.id; + sitem.count = 0; + + /* previous breakpoint */ + pbdt = get_time_break(pbt->pc); + + /* beware, the trace_pattern might have been removed */ + if (pbdt) { + h = &(pbdt->hash[bp_sched2ix_proc(p)]); + + ASSERT(h); + ASSERT(h->item); + + item = bp_hash_get(h, &sitem); + if (!item) { + item = bp_hash_put(h, &sitem); + } else { + BP_TIME_ADD(item, &sitem); + } + } + + pbt->pc = pc; + pbt->ms = ms; + pbt->s = s; + pbt->us = us; + } +} int -erts_is_trace_break(BeamInstr *pc, Binary **match_spec_ret, Eterm *tracer_pid_ret) { - BpDataTrace *bdt = - (BpDataTrace *) is_break(pc, (BeamInstr) BeamOp(op_i_trace_breakpoint)); - - if (bdt) { +erts_is_trace_break(BeamInstr *pc, Binary **match_spec_ret, int local) +{ + Uint flags = local ? ERTS_BPF_LOCAL_TRACE : ERTS_BPF_GLOBAL_TRACE; + GenericBpData* bp = check_break(pc, flags); + + if (bp) { if (match_spec_ret) { - *match_spec_ret = bdt->match_spec; + *match_spec_ret = bp->local_ms; } - if (tracer_pid_ret) { - ErtsSmpBPLock(bdt); - *tracer_pid_ret = bdt->tracer_pid; - ErtsSmpBPUnlock(bdt); - } - return !0; + return 1; } return 0; } int -erts_is_mtrace_break(BeamInstr *pc, Binary **match_spec_ret, Eterm *tracer_pid_ret) { - BpDataTrace *bdt = - (BpDataTrace *) is_break(pc, (BeamInstr) BeamOp(op_i_mtrace_breakpoint)); +erts_is_mtrace_break(BeamInstr *pc, Binary **match_spec_ret, + Eterm *tracer_pid_ret) +{ + GenericBpData* bp = check_break(pc, ERTS_BPF_META_TRACE); - if (bdt) { + if (bp) { if (match_spec_ret) { - *match_spec_ret = bdt->match_spec; + *match_spec_ret = bp->meta_ms; } if (tracer_pid_ret) { - ErtsSmpBPLock(bdt); - *tracer_pid_ret = bdt->tracer_pid; - ErtsSmpBPUnlock(bdt); + *tracer_pid_ret = + (Eterm) erts_smp_atomic_read_nob(&bp->meta_pid->pid); } - return !0; + return 1; } return 0; } @@ -402,15 +1131,15 @@ erts_is_native_break(BeamInstr *pc) { } int -erts_is_count_break(BeamInstr *pc, Sint *count_ret) { - BpDataCount *bdc = - (BpDataCount *) is_break(pc, (BeamInstr) BeamOp(op_i_count_breakpoint)); +erts_is_count_break(BeamInstr *pc, Uint *count_ret) +{ + GenericBpData* bp = check_break(pc, ERTS_BPF_COUNT); - if (bdc) { + if (bp) { if (count_ret) { - *count_ret = (Sint) erts_smp_atomic_read_nob(&bdc->acount); + *count_ret = (Uint) erts_smp_atomic_read_nob(&bp->count->acount); } - return !0; + return 1; } return 0; } @@ -421,7 +1150,7 @@ int erts_is_time_break(Process *p, BeamInstr *pc, Eterm *retval) { Uint size; Eterm *hp, t; bp_data_time_item_t *item = NULL; - BpDataTime *bdt = (BpDataTime *) is_break(pc, (BeamInstr) BeamOp(op_i_time_breakpoint)); + BpDataTime *bdt = get_time_break(pc); if (bdt) { if (retval) { @@ -464,7 +1193,7 @@ int erts_is_time_break(Process *p, BeamInstr *pc, Eterm *retval) { } bp_hash_delete(&hash); } - return !0; + return 1; } return 0; @@ -478,15 +1207,16 @@ erts_find_local_func(Eterm mfa[3]) { BeamInstr* code_ptr; Uint i,n; - if ((modp = erts_get_module(mfa[0])) == NULL) + if ((modp = erts_get_module(mfa[0], erts_active_code_ix())) == NULL) return NULL; - if ((code_base = (BeamInstr **) modp->code) == NULL) + if ((code_base = (BeamInstr **) modp->curr.code) == NULL) return NULL; n = (BeamInstr) code_base[MI_NUM_FUNCTIONS]; for (i = 0; i < n; ++i) { code_ptr = code_base[MI_FUNCTIONS+i]; ASSERT(((BeamInstr) BeamOp(op_i_func_info_IaaI)) == code_ptr[0]); - ASSERT(mfa[0] == ((Eterm) code_ptr[2])); + ASSERT(mfa[0] == ((Eterm) code_ptr[2]) || + is_nil((Eterm) code_ptr[2])); if (mfa[1] == ((Eterm) code_ptr[3]) && ((BeamInstr) mfa[2]) == code_ptr[4]) { return code_ptr + 5; @@ -654,11 +1384,11 @@ void erts_schedule_time_break(Process *p, Uint schedule) { * the previous breakpoint. */ - pbdt = (BpDataTime *) get_break(p, pbt->pc, (BeamInstr) BeamOp(op_i_time_breakpoint)); + pbdt = get_time_break(pbt->pc); if (pbdt) { get_sys_now(&ms,&s,&us); bp_time_diff(&sitem, pbt, ms, s, us); - sitem.pid = p->id; + sitem.pid = p->common.id; sitem.count = 0; h = &(pbdt->hash[bp_sched2ix_proc(p)]); @@ -692,669 +1422,260 @@ void erts_schedule_time_break(Process *p, Uint schedule) { } /* pbt */ } -/* call_time breakpoint - * Accumulated times are added to the previous bp, - * not the current one. The current one is saved - * for future reference. - * The previous breakpoint is stored in the process it self, the psd. - * We do not need to store in a stack frame. - * There is no need for locking, each thread has its own - * area in each bp to save data. - * Since we need to diffrentiate between processes for each bp, - * every bp has a hash (per thread) to process-bp statistics. - * - egil - */ - -void erts_trace_time_break(Process *p, BeamInstr *pc, BpDataTime *bdt, Uint type) { - Uint ms,s,us; - process_breakpoint_time_t *pbt = NULL; - bp_data_time_item_t sitem, *item = NULL; - bp_time_hash_t *h = NULL; - BpDataTime *pbdt = NULL; - - ASSERT(p); - ASSERT(p->status == P_RUNNING); - - /* get previous timestamp and breakpoint - * from the process psd */ - - pbt = ERTS_PROC_GET_CALL_TIME(p); - get_sys_now(&ms,&s,&us); - - switch(type) { - /* get pbt - * timestamp = t0 - * lookup bdt from code - * set ts0 to pbt - * add call count here? - */ - case ERTS_BP_CALL_TIME_CALL: - case ERTS_BP_CALL_TIME_TAIL_CALL: - - if (pbt) { - ASSERT(pbt->pc); - /* add time to previous code */ - bp_time_diff(&sitem, pbt, ms, s, us); - sitem.pid = p->id; - sitem.count = 0; - - /* previous breakpoint */ - pbdt = (BpDataTime *) get_break(p, pbt->pc, (BeamInstr) BeamOp(op_i_time_breakpoint)); - - /* if null then the breakpoint was removed */ - if (pbdt) { - h = &(pbdt->hash[bp_sched2ix_proc(p)]); - - ASSERT(h); - ASSERT(h->item); - - item = bp_hash_get(h, &sitem); - if (!item) { - item = bp_hash_put(h, &sitem); - } else { - BP_TIME_ADD(item, &sitem); - } - } - - } else { - /* first call of process to instrumented function */ - pbt = Alloc(sizeof(process_breakpoint_time_t)); - (void *) ERTS_PROC_SET_CALL_TIME(p, ERTS_PROC_LOCK_MAIN, pbt); - } - /* add count to this code */ - sitem.pid = p->id; - sitem.count = 1; - sitem.s_time = 0; - sitem.us_time = 0; - - /* this breakpoint */ - ASSERT(bdt); - h = &(bdt->hash[bp_sched2ix_proc(p)]); - - ASSERT(h); - ASSERT(h->item); - - item = bp_hash_get(h, &sitem); - if (!item) { - item = bp_hash_put(h, &sitem); - } else { - BP_TIME_ADD(item, &sitem); - } - - pbt->pc = pc; - pbt->ms = ms; - pbt->s = s; - pbt->us = us; - break; - - case ERTS_BP_CALL_TIME_RETURN: - /* get pbt - * lookup bdt from code - * timestamp = t1 - * get ts0 from pbt - * get item from bdt->hash[bp_hash(p->id)] - * ack diff (t1, t0) to item - */ - - if(pbt) { - /* might have been removed due to - * trace_pattern(false) - */ - ASSERT(pbt->pc); - - bp_time_diff(&sitem, pbt, ms, s, us); - sitem.pid = p->id; - sitem.count = 0; - - /* previous breakpoint */ - pbdt = (BpDataTime *) get_break(p, pbt->pc, (BeamInstr) BeamOp(op_i_time_breakpoint)); - - /* beware, the trace_pattern might have been removed */ - if (pbdt) { - h = &(pbdt->hash[bp_sched2ix_proc(p)]); - - ASSERT(h); - ASSERT(h->item); - - item = bp_hash_get(h, &sitem); - if (!item) { - item = bp_hash_put(h, &sitem); - } else { - BP_TIME_ADD(item, &sitem); - } - } - - pbt->pc = pc; - pbt->ms = ms; - pbt->s = s; - pbt->us = us; - } - break; - default : - ASSERT(0); - /* will never happen */ - break; - } -} - - /* ************************************************************************* ** Local helpers */ -static int set_break(Eterm mfa[3], int specified, - Binary *match_spec, BeamInstr break_op, - enum erts_break_op count_op, Eterm tracer_pid) +static void +set_break(BpFunctions* f, Binary *match_spec, Uint break_flags, + enum erts_break_op count_op, Eterm tracer_pid) { - Module *modp; - int num_processed = 0; - if (!specified) { - /* Find and process all modules in the system... */ - int current; - int last = module_code_size(); - for (current = 0; current < last; current++) { - modp = module_code(current); - ASSERT(modp != NULL); - num_processed += - set_module_break(modp, mfa, specified, - match_spec, break_op, count_op, - tracer_pid); - } - } else { - /* Process a single module */ - if ((modp = erts_get_module(mfa[0])) != NULL) { - num_processed += - set_module_break(modp, mfa, specified, - match_spec, break_op, count_op, - tracer_pid); - } - } - return num_processed; -} - -static int set_module_break(Module *modp, Eterm mfa[3], int specified, - Binary *match_spec, BeamInstr break_op, - enum erts_break_op count_op, Eterm tracer_pid) { - BeamInstr** code_base; - BeamInstr* code_ptr; - int num_processed = 0; - Uint i,n; + Uint i; + Uint n; - ASSERT(break_op); - ASSERT(modp); - code_base = (BeamInstr **) modp->code; - if (code_base == NULL) { - return 0; - } - n = (BeamInstr) code_base[MI_NUM_FUNCTIONS]; - for (i = 0; i < n; ++i) { - code_ptr = code_base[MI_FUNCTIONS+i]; - ASSERT(code_ptr[0] == (BeamInstr) BeamOp(op_i_func_info_IaaI)); - if ((specified < 2 || mfa[1] == ((Eterm) code_ptr[3])) && - (specified < 3 || ((int) mfa[2]) == ((int) code_ptr[4]))) { - BeamInstr *pc = code_ptr+5; - - num_processed += - set_function_break(modp, pc, BREAK_IS_ERL, match_spec, - break_op, count_op, tracer_pid); - } + n = f->matched; + for (i = 0; i < n; i++) { + BeamInstr* pc = f->matching[i].pc; + set_function_break(pc, match_spec, break_flags, + count_op, tracer_pid); } - return num_processed; } -static int set_function_break(Module *modp, BeamInstr *pc, int bif, - Binary *match_spec, BeamInstr break_op, - enum erts_break_op count_op, Eterm tracer_pid) { - - BeamInstr **code_base = NULL; - BpData *bd, **r, ***rs; - size_t size; - Uint ix = 0; - - if (bif == BREAK_IS_ERL) { - code_base = (BeamInstr **)modp->code; - ASSERT(code_base); - ASSERT(code_base <= (BeamInstr **)pc); - ASSERT((BeamInstr **)pc < code_base + (modp->code_length/sizeof(BeamInstr *))); - } else { - ASSERT(*pc == (BeamInstr) em_apply_bif); - ASSERT(modp == NULL); +static void +set_function_break(BeamInstr *pc, Binary *match_spec, Uint break_flags, + enum erts_break_op count_op, Eterm tracer_pid) +{ + GenericBp* g; + GenericBpData* bp; + Uint common; + ErtsBpIndex ix = erts_staging_bp_ix(); + + ERTS_SMP_LC_ASSERT(erts_has_code_write_permission()); + g = (GenericBp *) pc[-4]; + if (g == 0) { + int i; + if (count_op == erts_break_reset || count_op == erts_break_stop) { + /* Do not insert a new breakpoint */ + return; + } + g = Alloc(sizeof(GenericBp)); + g->orig_instr = *pc; + for (i = 0; i < ERTS_NUM_BP_IX; i++) { + g->data[i].flags = 0; + } + pc[-4] = (BeamInstr) g; } + bp = &g->data[ix]; /* - * Currently no trace support for native code. + * If we are changing an existing breakpoint, clean up old data. */ - if (erts_is_native_break(pc)) { - return 0; - } - /* Do not allow two breakpoints of the same kind */ - if ( (bd = is_break(pc, break_op))) { - if (break_op == (BeamInstr) BeamOp(op_i_trace_breakpoint) - || break_op == (BeamInstr) BeamOp(op_i_mtrace_breakpoint)) { - - BpDataTrace *bdt = (BpDataTrace *) bd; - Binary *old_match_spec; - - /* Update match spec and tracer */ - MatchSetRef(match_spec); - ErtsSmpBPLock(bdt); - old_match_spec = bdt->match_spec; - bdt->match_spec = match_spec; - bdt->tracer_pid = tracer_pid; - ErtsSmpBPUnlock(bdt); - MatchSetUnref(old_match_spec); - } else { - BpDataCount *bdc = (BpDataCount *) bd; - erts_aint_t count = 0; - erts_aint_t res = 0; - - ASSERT(! match_spec); - ASSERT(is_nil(tracer_pid)); - - if (break_op == (BeamInstr) BeamOp(op_i_count_breakpoint)) { - if (count_op == erts_break_stop) { - count = erts_smp_atomic_read_nob(&bdc->acount); - if (count >= 0) { - while(1) { - res = erts_smp_atomic_cmpxchg_nob(&bdc->acount, -count - 1, count); - if ((res == count) || count < 0) break; - count = res; - } - } - } else { - /* Reset call counter */ - erts_smp_atomic_set_nob(&bdc->acount, 0); - } - - } else if (break_op == (BeamInstr) BeamOp(op_i_time_breakpoint)) { - BpDataTime *bdt = (BpDataTime *) bd; - Uint i = 0; - - ERTS_SMP_LC_ASSERT(erts_smp_thr_progress_is_blocking()); - - if (count_op == erts_break_stop) { - bdt->pause = 1; - } else { - bdt->pause = 0; - for (i = 0; i < bdt->n; i++) { - bp_hash_delete(&(bdt->hash[i])); - bp_hash_init(&(bdt->hash[i]), 32); - } - } - } else { - ASSERT (! count_op); - } - } - return 1; - } - if (break_op == (BeamInstr) BeamOp(op_i_trace_breakpoint) || - break_op == (BeamInstr) BeamOp(op_i_mtrace_breakpoint)) { - size = sizeof(BpDataTrace); - } else { - ASSERT(! match_spec); - ASSERT(is_nil(tracer_pid)); - if (break_op == (BeamInstr) BeamOp(op_i_count_breakpoint)) { - if (count_op == erts_break_reset || count_op == erts_break_stop) { - /* Do not insert a new breakpoint */ - return 1; - } - size = sizeof(BpDataCount); - } else if (break_op == (BeamInstr) BeamOp(op_i_time_breakpoint)) { - if (count_op == erts_break_reset || count_op == erts_break_stop) { - /* Do not insert a new breakpoint */ - return 1; - } - size = sizeof(BpDataTime); + common = break_flags & bp->flags; + if (common & (ERTS_BPF_LOCAL_TRACE|ERTS_BPF_GLOBAL_TRACE)) { + MatchSetUnref(bp->local_ms); + } else if (common & ERTS_BPF_META_TRACE) { + MatchSetUnref(bp->meta_ms); + bp_meta_unref(bp->meta_pid); + } else if (common & ERTS_BPF_COUNT) { + if (count_op == erts_break_stop) { + bp->flags &= ~ERTS_BPF_COUNT_ACTIVE; } else { - ASSERT(! count_op); - ASSERT(break_op == (BeamInstr) BeamOp(op_i_debug_breakpoint)); - size = sizeof(BpDataDebug); + bp->flags |= ERTS_BPF_COUNT_ACTIVE; + erts_smp_atomic_set_nob(&bp->count->acount, 0); } - } - rs = (BpData ***) (pc-4); - if (! *rs) { - size_t ssize = sizeof(BeamInstr) * erts_no_schedulers; - *rs = (BpData **) Alloc(ssize); - sys_memzero(*rs, ssize); - } - - r = &((*rs)[0]); - - if (! *r) { - ASSERT(*pc != (BeamInstr) BeamOp(op_i_trace_breakpoint)); - ASSERT(*pc != (BeamInstr) BeamOp(op_i_mtrace_breakpoint)); - ASSERT(*pc != (BeamInstr) BeamOp(op_i_debug_breakpoint)); - ASSERT(*pc != (BeamInstr) BeamOp(op_i_count_breakpoint)); - ASSERT(*pc != (BeamInstr) BeamOp(op_i_time_breakpoint)); - /* First breakpoint; create singleton ring */ - bd = Alloc(size); - BpInit(bd, *pc); - *r = bd; - if (bif == BREAK_IS_ERL) { - *pc = break_op; - } - } else { - ASSERT(*pc == (BeamInstr) BeamOp(op_i_trace_breakpoint) || - *pc == (BeamInstr) BeamOp(op_i_mtrace_breakpoint) || - *pc == (BeamInstr) BeamOp(op_i_debug_breakpoint) || - *pc == (BeamInstr) BeamOp(op_i_time_breakpoint) || - *pc == (BeamInstr) BeamOp(op_i_count_breakpoint) || - *pc == (BeamInstr) em_apply_bif); - if (*pc == (BeamInstr) BeamOp(op_i_debug_breakpoint)) { - /* Debug bp must be last, so if it is also first; - * it must be singleton. */ - ASSERT(BpSingleton(*r)); - /* Insert new bp first in the ring, i.e second to last. */ - bd = Alloc(size); - BpInitAndSpliceNext(bd, *pc, *r); - if (bif == BREAK_IS_ERL) { - *pc = break_op; - } - } else if ((*r)->prev->orig_instr - == (BeamInstr) BeamOp(op_i_debug_breakpoint)) { - /* Debug bp last in the ring; insert new second to last. */ - bd = Alloc(size); - BpInitAndSplicePrev(bd, (*r)->prev->orig_instr, *r); - (*r)->prev->orig_instr = break_op; + ASSERT((bp->flags & ~ERTS_BPF_ALL) == 0); + return; + } else if (common & ERTS_BPF_TIME_TRACE) { + BpDataTime* bdt = bp->time; + Uint i = 0; + + if (count_op == erts_break_stop) { + bp->flags &= ~ERTS_BPF_TIME_TRACE_ACTIVE; } else { - /* Just insert last in the ring */ - bd = Alloc(size); - BpInitAndSpliceNext(bd, (*r)->orig_instr, *r); - (*r)->orig_instr = break_op; - *r = bd; + bp->flags |= ERTS_BPF_TIME_TRACE_ACTIVE; + for (i = 0; i < bdt->n; i++) { + bp_hash_delete(&(bdt->hash[i])); + bp_hash_init(&(bdt->hash[i]), 32); + } } - } - for (ix = 1; ix < erts_no_schedulers; ++ix) { - (*rs)[ix] = (*rs)[0]; + ASSERT((bp->flags & ~ERTS_BPF_ALL) == 0); + return; } - bd->this_instr = break_op; - /* Init the bp type specific data */ - if (break_op == (BeamInstr) BeamOp(op_i_trace_breakpoint) || - break_op == (BeamInstr) BeamOp(op_i_mtrace_breakpoint)) { - - BpDataTrace *bdt = (BpDataTrace *) bd; - - MatchSetRef(match_spec); - bdt->match_spec = match_spec; - bdt->tracer_pid = tracer_pid; - } else if (break_op == (BeamInstr) BeamOp(op_i_time_breakpoint)) { - BpDataTime *bdt = (BpDataTime *) bd; - Uint i = 0; - - bdt->pause = 0; - bdt->n = erts_no_schedulers; - bdt->hash = Alloc(sizeof(bp_time_hash_t)*(bdt->n)); + /* + * Initialize the new breakpoint data. + */ + if (break_flags & (ERTS_BPF_LOCAL_TRACE|ERTS_BPF_GLOBAL_TRACE)) { + MatchSetRef(match_spec); + bp->local_ms = match_spec; + } else if (break_flags & ERTS_BPF_META_TRACE) { + BpMetaPid* bmp; + MatchSetRef(match_spec); + bp->meta_ms = match_spec; + bmp = Alloc(sizeof(BpMetaPid)); + erts_refc_init(&bmp->refc, 1); + erts_smp_atomic_init_nob(&bmp->pid, tracer_pid); + bp->meta_pid = bmp; + } else if (break_flags & ERTS_BPF_COUNT) { + BpCount* bcp; + + ASSERT((bp->flags & ERTS_BPF_COUNT) == 0); + bcp = Alloc(sizeof(BpCount)); + erts_refc_init(&bcp->refc, 1); + erts_smp_atomic_init_nob(&bcp->acount, 0); + bp->count = bcp; + } else if (break_flags & ERTS_BPF_TIME_TRACE) { + BpDataTime* bdt; + int i; + + ASSERT((bp->flags & ERTS_BPF_TIME_TRACE) == 0); + bdt = Alloc(sizeof(BpDataTime)); + erts_refc_init(&bdt->refc, 1); + bdt->n = erts_no_schedulers; + bdt->hash = Alloc(sizeof(bp_time_hash_t)*(bdt->n)); for (i = 0; i < bdt->n; i++) { bp_hash_init(&(bdt->hash[i]), 32); } - } else if (break_op == (BeamInstr) BeamOp(op_i_count_breakpoint)) { - BpDataCount *bdc = (BpDataCount *) bd; - erts_smp_atomic_init_nob(&bdc->acount, 0); + bp->time = bdt; } - if (bif == BREAK_IS_ERL) { - ++(*(BeamInstr*)&code_base[MI_NUM_BREAKPOINTS]); + bp->flags |= break_flags; + ASSERT((bp->flags & ~ERTS_BPF_ALL) == 0); +} + +static void +clear_break(BpFunctions* f, Uint break_flags) +{ + Uint i; + Uint n; + + n = f->matched; + for (i = 0; i < n; i++) { + BeamInstr* pc = f->matching[i].pc; + clear_function_break(pc, break_flags); } - return 1; } -static int clear_break(Eterm mfa[3], int specified, BeamInstr break_op) +static int +clear_function_break(BeamInstr *pc, Uint break_flags) { - int num_processed = 0; - Module *modp; + GenericBp* g; + GenericBpData* bp; + Uint common; + ErtsBpIndex ix = erts_staging_bp_ix(); - if (!specified) { - /* Iterate over all modules */ - int current; - int last = module_code_size(); + ERTS_SMP_LC_ASSERT(erts_has_code_write_permission()); - for (current = 0; current < last; current++) { - modp = module_code(current); - ASSERT(modp != NULL); - num_processed += clear_module_break(modp, mfa, specified, break_op); - } - } else { - /* Process a single module */ - if ((modp = erts_get_module(mfa[0])) != NULL) { - num_processed += - clear_module_break(modp, mfa, specified, break_op); - } + if ((g = (GenericBp *) pc[-4]) == 0) { + return 1; } - return num_processed; -} -static int clear_module_break(Module *m, Eterm mfa[3], int specified, - BeamInstr break_op) { - BeamInstr** code_base; - BeamInstr* code_ptr; - int num_processed = 0; - Uint i; - BeamInstr n; - - ASSERT(m); - code_base = (BeamInstr **) m->code; - if (code_base == NULL) { - return 0; + bp = &g->data[ix]; + ASSERT((bp->flags & ~ERTS_BPF_ALL) == 0); + common = bp->flags & break_flags; + bp->flags &= ~break_flags; + if (common & (ERTS_BPF_LOCAL_TRACE|ERTS_BPF_GLOBAL_TRACE)) { + MatchSetUnref(bp->local_ms); } - n = (BeamInstr) code_base[MI_NUM_FUNCTIONS]; - for (i = 0; i < n; ++i) { - code_ptr = code_base[MI_FUNCTIONS+i]; - if ((specified < 2 || mfa[1] == ((Eterm) code_ptr[3])) && - (specified < 3 || ((int) mfa[2]) == ((int) code_ptr[4]))) { - BeamInstr *pc = code_ptr + 5; - - num_processed += - clear_function_break(m, pc, BREAK_IS_ERL, break_op); - } + if (common & ERTS_BPF_META_TRACE) { + MatchSetUnref(bp->meta_ms); + bp_meta_unref(bp->meta_pid); + } + if (common & ERTS_BPF_COUNT) { + ASSERT((bp->flags & ERTS_BPF_COUNT_ACTIVE) == 0); + bp_count_unref(bp->count); + } + if (common & ERTS_BPF_TIME_TRACE) { + ASSERT((bp->flags & ERTS_BPF_TIME_TRACE_ACTIVE) == 0); + bp_time_unref(bp->time); } - return num_processed; -} -static int clear_function_break(Module *m, BeamInstr *pc, int bif, BeamInstr break_op) { - BpData *bd; - Uint ix = 0; - BeamInstr **code_base = NULL; + ASSERT((bp->flags & ~ERTS_BPF_ALL) == 0); + return 1; +} - if (bif == BREAK_IS_ERL) { - code_base = (BeamInstr **)m->code; - ASSERT(code_base); - ASSERT(code_base <= (BeamInstr **)pc); - ASSERT((BeamInstr **)pc < code_base + (m->code_length/sizeof(BeamInstr *))); - } else { - ASSERT(*pc == (BeamInstr) em_apply_bif); - ASSERT(m == NULL); +static void +bp_meta_unref(BpMetaPid* bmp) +{ + if (erts_refc_dectest(&bmp->refc, 0) <= 0) { + Free(bmp); } +} - /* - * Currently no trace support for native code. - */ - if (erts_is_native_break(pc)) { - return 0; +static void +bp_count_unref(BpCount* bcp) +{ + if (erts_refc_dectest(&bcp->refc, 0) <= 0) { + Free(bcp); } +} - while ( (bd = is_break(pc, break_op))) { - /* Remove all breakpoints of this type. - * There should be only one of each type, - * but break_op may be 0 which matches any type. +static void +bp_time_unref(BpDataTime* bdt) +{ + if (erts_refc_dectest(&bdt->refc, 0) <= 0) { + Uint i = 0; + Uint j = 0; + Process *h_p = NULL; + bp_data_time_item_t* item = NULL; + process_breakpoint_time_t* pbt = NULL; + + /* remove all psd associated with the hash + * and then delete the hash. + * ... sigh ... */ - BeamInstr op; - BpData ***rs = (BpData ***) (pc - 4); - BpData **r = NULL; - -#ifdef DEBUG - for (ix = 1; ix < erts_no_schedulers; ++ix) { - ASSERT((*rs)[ix] == (*rs)[0]); - } -#endif - - r = &((*rs)[0]); - - ASSERT(*r); - /* Find opcode for this breakpoint */ - if (break_op) { - op = break_op; - } else { - if (bd == (*r)->next) { - /* First breakpoint in ring */ - op = *pc; - } else { - op = bd->prev->orig_instr; - } - } - if (BpSingleton(bd)) { - ASSERT(*r == bd); - /* Only one breakpoint to remove */ - if (bif == BREAK_IS_ERL) { - *pc = bd->orig_instr; - } - Free(*rs); - *rs = NULL; - } else { - BpData *bd_prev = bd->prev; - - BpSpliceNext(bd, bd_prev); - ASSERT(BpSingleton(bd)); - if (bd == *r) { - /* We removed the last breakpoint in the ring */ - *r = bd_prev; - bd_prev->orig_instr = bd->orig_instr; - } else if (bd_prev == *r) { - /* We removed the first breakpoint in the ring */ - if (bif == BREAK_IS_ERL) { - *pc = bd->orig_instr; - } - } else { - bd_prev->orig_instr = bd->orig_instr; - } - } - if (op == (BeamInstr) BeamOp(op_i_trace_breakpoint) || - op == (BeamInstr) BeamOp(op_i_mtrace_breakpoint)) { - - BpDataTrace *bdt = (BpDataTrace *) bd; - MatchSetUnref(bdt->match_spec); - } - if (op == (BeamInstr) BeamOp(op_i_time_breakpoint)) { - BpDataTime *bdt = (BpDataTime *) bd; - Uint i = 0; - Uint j = 0; - Process *h_p = NULL; - bp_data_time_item_t *item = NULL; - process_breakpoint_time_t *pbt = NULL; - - /* remove all psd associated with the hash - * and then delete the hash. - * ... sigh ... - */ - for( i = 0; i < bdt->n; ++i) { - if (bdt->hash[i].used) { - for (j = 0; j < bdt->hash[i].n; ++j) { - item = &(bdt->hash[i].item[j]); - if (item->pid != NIL) { - h_p = process_tab[internal_pid_index(item->pid)]; - if (h_p) { - pbt = ERTS_PROC_SET_CALL_TIME(h_p, ERTS_PROC_LOCK_MAIN, NULL); - if (pbt) { - Free(pbt); - } + for (i = 0; i < bdt->n; ++i) { + if (bdt->hash[i].used) { + for (j = 0; j < bdt->hash[i].n; ++j) { + item = &(bdt->hash[i].item[j]); + if (item->pid != NIL) { + h_p = erts_pid2proc(NULL, 0, item->pid, + ERTS_PROC_LOCK_MAIN); + if (h_p) { + pbt = ERTS_PROC_SET_CALL_TIME(h_p, + ERTS_PROC_LOCK_MAIN, + NULL); + if (pbt) { + Free(pbt); } + erts_smp_proc_unlock(h_p, ERTS_PROC_LOCK_MAIN); } } } - bp_hash_delete(&(bdt->hash[i])); } - Free(bdt->hash); - bdt->hash = NULL; - bdt->n = 0; + bp_hash_delete(&(bdt->hash[i])); } - Free(bd); - if (bif == BREAK_IS_ERL) { - ASSERT(((BeamInstr) code_base[MI_NUM_BREAKPOINTS]) > 0); - --(*(BeamInstr*)&code_base[MI_NUM_BREAKPOINTS]); - } - if (*rs) { - for (ix = 1; ix < erts_no_schedulers; ++ix) { - (*rs)[ix] = (*rs)[0]; - } - } - } /* while bd != NULL */ - return 1; + Free(bdt->hash); + Free(bdt); + } } - - -/* -** Searches (linear forward) the breakpoint ring for a specified opcode -** and returns a pointer to the breakpoint data structure or NULL if -** not found. If the specified opcode is 0, the last breakpoint is -** returned. The program counter must point to the first executable -** (breakpoint) instruction of the function. -*/ - -BpData *erts_get_time_break(Process *p, BeamInstr *pc) { - return get_break(p, pc, (BeamInstr) BeamOp(op_i_time_breakpoint)); +static BpDataTime* +get_time_break(BeamInstr *pc) +{ + GenericBpData* bp = check_break(pc, ERTS_BPF_TIME_TRACE); + return bp ? bp->time : 0; } -static BpData *get_break(Process *p, BeamInstr *pc, BeamInstr break_op) { - ASSERT(pc[-5] == (BeamInstr) BeamOp(op_i_func_info_IaaI)); - if (! erts_is_native_break(pc)) { - BpData **rs = (BpData **) pc[-4]; - BpData *bd = NULL, *ebd = NULL; - - if (! rs) { - return NULL; - } - - bd = ebd = rs[bp_sched2ix_proc(p)]; - ASSERT(bd); - if (bd->this_instr == break_op) { - return bd; - } - - bd = bd->next; - while (bd != ebd) { - ASSERT(bd); - if (bd->this_instr == break_op) { - ASSERT(bd); - return bd; - } - bd = bd->next; - } - } - return NULL; -} +static GenericBpData* +check_break(BeamInstr *pc, Uint break_flags) +{ + GenericBp* g = (GenericBp *) pc[-4]; -static BpData *is_break(BeamInstr *pc, BeamInstr break_op) { - BpData **rs; - BpData *bd = NULL, *ebd = NULL; ASSERT(pc[-5] == (BeamInstr) BeamOp(op_i_func_info_IaaI)); - if (erts_is_native_break(pc)) { - return NULL; - } - rs = (BpData **) pc[-4]; - if (! rs) { - return NULL; - } - - bd = ebd = rs[erts_bp_sched2ix()]; - ASSERT(bd); - if ( (break_op == 0) || (bd->this_instr == break_op)) { - return bd; + return 0; } - - bd = bd->next; - while (bd != ebd) { - ASSERT(bd); - if (bd->this_instr == break_op) { - ASSERT(bd); - return bd; + if (g) { + GenericBpData* bp = &g->data[erts_active_bp_ix()]; + ASSERT((bp->flags & ~ERTS_BPF_ALL) == 0); + if (bp->flags & break_flags) { + return bp; } - bd = bd->next; } - return NULL; + return 0; } diff --git a/erts/emulator/beam/beam_bp.h b/erts/emulator/beam/beam_bp.h index 167069552f..b061401863 100644 --- a/erts/emulator/beam/beam_bp.h +++ b/erts/emulator/beam/beam_bp.h @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 2000-2011. All Rights Reserved. + * Copyright Ericsson AB 2000-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -25,77 +25,6 @@ #include "erl_vm.h" #include "global.h" - - -/* A couple of gotchas: - * - * The breakpoint structure from BeamInstr, - * In beam_emu where the instruction counter pointer, I (or pc), - * points to the *current* instruction. At that time, if the instruction - * is a breakpoint instruction the pc looks like the following, - * - * I[-5] | op_i_func_info_IaaI | scheduler specific entries - * I[-4] | BpData** bpa | --> | BpData * bdas1 | ... | BpData * bdasN | - * I[-3] | Tagged Module | | | - * I[-2] | Tagged Function | V V - * I[-1] | Arity | BpData -> BpData -> BpData -> BpData - * I[0] | The bp instruction | ^ * the bp wheel * | - * |------------------------------ - * - * Common struct to all bp_data_* - * - * 1) The type of bp_data structure in the ring is deduced from the - * orig_instr field of the structure _before_ in the ring, except for - * the first structure in the ring that has its instruction in - * pc[0] of the code to execute. - * This is valid as long as you don't search for the function while it is - * being executed by something else. Or is in the middle of its rotation for - * any other reason. - * A key, the bp beam instruction, is included for this reason. - * - * 2) pc[-4][sched_id - 1] points to the _last_ structure in the ring before the - * breakpoints are being executed. - * - * So, as an example, when a breakpointed function starts to execute, - * the first instruction that is a breakpoint instruction at pc[0] finds - * its data at ((BpData **) pc[-4][sched_id - 1])->next and has to cast that pointer - * to the correct bp_data type. -*/ - -typedef struct bp_data { - struct bp_data *next; /* Doubly linked ring pointers */ - struct bp_data *prev; /* -"- */ - BeamInstr orig_instr; /* The original instruction to execute */ - BeamInstr this_instr; /* key */ -} BpData; -/* -** All the following bp_data_.. structs must begin the same way -*/ - -typedef struct bp_data_trace { - struct bp_data *next; - struct bp_data *prev; - BeamInstr orig_instr; - BeamInstr this_instr; /* key */ - Binary *match_spec; - Eterm tracer_pid; -} BpDataTrace; - -typedef struct bp_data_debug { - struct bp_data *next; - struct bp_data *prev; - BeamInstr orig_instr; - BeamInstr this_instr; /* key */ -} BpDataDebug; - -typedef struct bp_data_count { /* Call count */ - struct bp_data *next; - struct bp_data *prev; - BeamInstr orig_instr; - BeamInstr this_instr; /* key */ - erts_smp_atomic_t acount; -} BpDataCount; - typedef struct { Eterm pid; Sint count; @@ -110,13 +39,9 @@ typedef struct { } bp_time_hash_t; typedef struct bp_data_time { /* Call time */ - struct bp_data *next; - struct bp_data *prev; - BeamInstr orig_instr; - BeamInstr this_instr; /* key */ - Uint pause; - Uint n; - bp_time_hash_t *hash; + Uint n; + bp_time_hash_t *hash; + erts_refc_t refc; } BpDataTime; typedef struct { @@ -126,64 +51,42 @@ typedef struct { BeamInstr *pc; } process_breakpoint_time_t; /* used within psd */ -extern erts_smp_spinlock_t erts_bp_lock; +typedef struct { + erts_smp_atomic_t acount; + erts_refc_t refc; +} BpCount; + +typedef struct { + erts_smp_atomic_t pid; + erts_refc_t refc; +} BpMetaPid; + +typedef struct generic_bp_data { + Uint flags; + Binary* local_ms; /* Match spec for local call trace */ + Binary* meta_ms; /* Match spec for meta trace */ + BpMetaPid* meta_pid; /* Meta trace pid */ + BpCount* count; /* For call count */ + BpDataTime* time; /* For time trace */ +} GenericBpData; + +#define ERTS_NUM_BP_IX 2 + +typedef struct generic_bp { + BeamInstr orig_instr; + GenericBpData data[ERTS_NUM_BP_IX]; +} GenericBp; #define ERTS_BP_CALL_TIME_SCHEDULE_IN (0) #define ERTS_BP_CALL_TIME_SCHEDULE_OUT (1) #define ERTS_BP_CALL_TIME_SCHEDULE_EXITING (2) -#define ERTS_BP_CALL_TIME_CALL (0) -#define ERTS_BP_CALL_TIME_RETURN (1) -#define ERTS_BP_CALL_TIME_TAIL_CALL (2) - -#ifdef ERTS_SMP -#define ErtsSmpBPLock(BDC) erts_smp_spin_lock(&erts_bp_lock) -#define ErtsSmpBPUnlock(BDC) erts_smp_spin_unlock(&erts_bp_lock) -#else -#define ErtsSmpBPLock(BDC) -#define ErtsSmpBPUnlock(BDC) -#endif - #ifdef ERTS_SMP #define bp_sched2ix_proc(p) ((p)->scheduler_data->no - 1) #else #define bp_sched2ix_proc(p) (0) #endif -#define ErtsCountBreak(p, pc,instr_result) \ -do { \ - BpData **bds = (BpData **) (pc)[-4]; \ - BpDataCount *bdc = NULL; \ - Uint ix = bp_sched2ix_proc( (p) ); \ - erts_aint_t count = 0; \ - \ - ASSERT((pc)[-5] == (BeamInstr) BeamOp(op_i_func_info_IaaI)); \ - ASSERT(bds); \ - bdc = (BpDataCount *) bds[ix]; \ - bdc = (BpDataCount *) bdc->next; \ - ASSERT(bdc); \ - bds[ix] = (BpData *) bdc; \ - count = erts_smp_atomic_read_nob(&bdc->acount); \ - if (count >= 0) erts_smp_atomic_inc_nob(&bdc->acount); \ - *(instr_result) = bdc->orig_instr; \ -} while (0) - -#define ErtsBreakSkip(p, pc,instr_result) \ -do { \ - BpData **bds = (BpData **) (pc)[-4]; \ - BpData *bd = NULL; \ - Uint ix = bp_sched2ix_proc( (p) ); \ - \ - ASSERT((pc)[-5] == (BeamInstr) BeamOp(op_i_func_info_IaaI)); \ - ASSERT(bds); \ - bd = bds[ix]; \ - ASSERT(bd); \ - bd = bd->next; \ - ASSERT(bd); \ - bds[ix] = bd; \ - *(instr_result) = bd->orig_instr; \ -} while (0) - enum erts_break_op{ erts_break_nop = 0, /* Must be false */ erts_break_set = !0, /* Must be true */ @@ -191,7 +94,17 @@ enum erts_break_op{ erts_break_stop }; +typedef Uint32 ErtsBpIndex; +typedef struct { + BeamInstr* pc; + Module* mod; +} BpFunction; + +typedef struct { + Uint matched; /* Number matched */ + BpFunction* matching; /* Matching functions */ +} BpFunctions; /* ** Function interface exported from beam_bp.c @@ -199,49 +112,66 @@ enum erts_break_op{ void erts_bp_init(void); -int erts_set_trace_break(Eterm mfa[3], int specified, Binary *match_spec, - Eterm tracer_pid); -int erts_clear_trace_break(Eterm mfa[3], int specified); -int erts_set_mtrace_break(Eterm mfa[3], int specified, Binary *match_spec, +void erts_prepare_bp_staging(void); +void erts_commit_staged_bp(void); + +ERTS_GLB_INLINE ErtsBpIndex erts_active_bp_ix(void); +ERTS_GLB_INLINE ErtsBpIndex erts_staging_bp_ix(void); + +void erts_bp_match_functions(BpFunctions* f, Eterm mfa[3], int specified); +void erts_bp_match_export(BpFunctions* f, Eterm mfa[3], int specified); +void erts_bp_free_matched_functions(BpFunctions* f); + +void erts_install_breakpoints(BpFunctions* f); +void erts_uninstall_breakpoints(BpFunctions* f); +void erts_consolidate_bp_data(BpFunctions* f, int local); +void erts_consolidate_bif_bp_data(void); + +void erts_set_trace_break(BpFunctions *f, Binary *match_spec); +void erts_clear_trace_break(BpFunctions *f); + +void erts_set_call_trace_bif(BeamInstr *pc, Binary *match_spec, int local); +void erts_clear_call_trace_bif(BeamInstr *pc, int local); + +void erts_set_mtrace_break(BpFunctions *f, Binary *match_spec, Eterm tracer_pid); -int erts_clear_mtrace_break(Eterm mfa[3], int specified); +void erts_clear_mtrace_break(BpFunctions *f); void erts_set_mtrace_bif(BeamInstr *pc, Binary *match_spec, Eterm tracer_pid); void erts_clear_mtrace_bif(BeamInstr *pc); -int erts_set_debug_break(Eterm mfa[3], int specified); -int erts_clear_debug_break(Eterm mfa[3], int specified); -int erts_set_count_break(Eterm mfa[3], int specified, enum erts_break_op); -int erts_clear_count_break(Eterm mfa[3], int specified); +void erts_set_debug_break(BpFunctions *f); +void erts_clear_debug_break(BpFunctions *f); +void erts_set_count_break(BpFunctions *f, enum erts_break_op); +void erts_clear_count_break(BpFunctions *f); -int erts_clear_break(Eterm mfa[3], int specified); + +void erts_clear_all_breaks(BpFunctions* f); int erts_clear_module_break(Module *modp); -int erts_clear_function_break(Module *modp, BeamInstr *pc); +void erts_clear_export_break(Module *modp, BeamInstr* pc); +BeamInstr erts_generic_breakpoint(Process* c_p, BeamInstr* I, Eterm* reg); BeamInstr erts_trace_break(Process *p, BeamInstr *pc, Eterm *args, Uint32 *ret_flags, Eterm *tracer_pid); -Uint32 erts_bif_mtrace(Process *p, BeamInstr *pc, Eterm *args, - int local, Eterm *tracer_pid); -int erts_is_trace_break(BeamInstr *pc, Binary **match_spec_ret, - Eterm *tracer_pid_ret); +int erts_is_trace_break(BeamInstr *pc, Binary **match_spec_ret, int local); int erts_is_mtrace_break(BeamInstr *pc, Binary **match_spec_ret, Eterm *tracer_pid_rte); int erts_is_mtrace_bif(BeamInstr *pc, Binary **match_spec_ret, Eterm *tracer_pid_ret); int erts_is_native_break(BeamInstr *pc); -int erts_is_count_break(BeamInstr *pc, Sint *count_ret); +int erts_is_count_break(BeamInstr *pc, Uint *count_ret); int erts_is_time_break(Process *p, BeamInstr *pc, Eterm *call_time); -void erts_trace_time_break(Process *p, BeamInstr *pc, BpDataTime *bdt, Uint type); +void erts_trace_time_call(Process* c_p, BeamInstr* pc, BpDataTime* bdt); +void erts_trace_time_return(Process* c_p, BeamInstr* pc); void erts_schedule_time_break(Process *p, Uint out); -int erts_set_time_break(Eterm mfa[3], int specified, enum erts_break_op); -int erts_clear_time_break(Eterm mfa[3], int specified); +void erts_set_time_break(BpFunctions *f, enum erts_break_op); +void erts_clear_time_break(BpFunctions *f); int erts_is_time_trace_bif(Process *p, BeamInstr *pc, Eterm *call_time); void erts_set_time_trace_bif(BeamInstr *pc, enum erts_break_op); void erts_clear_time_trace_bif(BeamInstr *pc); -BpData *erts_get_time_break(Process *p, BeamInstr *pc); BeamInstr *erts_find_local_func(Eterm mfa[3]); @@ -258,6 +188,19 @@ ERTS_GLB_INLINE Uint erts_bp_sched2ix(void) return 0; #endif } + +extern erts_smp_atomic32_t erts_active_bp_index; +extern erts_smp_atomic32_t erts_staging_bp_index; + +ERTS_GLB_INLINE ErtsBpIndex erts_active_bp_ix(void) +{ + return erts_smp_atomic32_read_nob(&erts_active_bp_index); +} + +ERTS_GLB_INLINE ErtsBpIndex erts_staging_bp_ix(void) +{ + return erts_smp_atomic32_read_nob(&erts_staging_bp_index); +} #endif #endif /* _BEAM_BP_H */ diff --git a/erts/emulator/beam/beam_catches.c b/erts/emulator/beam/beam_catches.c index 406ef1db5f..d374d0469e 100644 --- a/erts/emulator/beam/beam_catches.c +++ b/erts/emulator/beam/beam_catches.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 2000-2011. All Rights Reserved. + * Copyright Ericsson AB 2000-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -31,78 +31,143 @@ typedef struct { unsigned cdr; } beam_catch_t; -static int free_list; -static unsigned high_mark; -static unsigned tabsize; -static beam_catch_t *beam_catches; +#ifdef DEBUG +# define IF_DEBUG(x) x +#else +# define IF_DEBUG(x) +#endif + +struct bc_pool { + int free_list; + unsigned high_mark; + unsigned tabsize; + beam_catch_t *beam_catches; + /* + * Note that the 'beam_catches' area is shared by pools. Used slots + * are readonly as long as the module is not purgable. The free-list is + * protected by the code_ix lock. + */ + + IF_DEBUG(int is_staging;) +}; + +static struct bc_pool bccix[ERTS_NUM_CODE_IX]; void beam_catches_init(void) { - tabsize = DEFAULT_TABSIZE; - free_list = -1; - high_mark = 0; + int i; + + bccix[0].tabsize = DEFAULT_TABSIZE; + bccix[0].free_list = -1; + bccix[0].high_mark = 0; + bccix[0].beam_catches = erts_alloc(ERTS_ALC_T_CODE, + sizeof(beam_catch_t)*DEFAULT_TABSIZE); + IF_DEBUG(bccix[0].is_staging = 0); + for (i=1; i<ERTS_NUM_CODE_IX; i++) { + bccix[i] = bccix[i-1]; + } + /* For initial load: */ + IF_DEBUG(bccix[erts_staging_code_ix()].is_staging = 1); +} - beam_catches = erts_alloc(ERTS_ALC_T_CODE, sizeof(beam_catch_t)*DEFAULT_TABSIZE); + +static void gc_old_vec(beam_catch_t* vec) +{ + int i; + for (i=0; i<ERTS_NUM_CODE_IX; i++) { + if (bccix[i].beam_catches == vec) { + return; + } + } + erts_free(ERTS_ALC_T_CODE, vec); +} + + +void beam_catches_start_staging(void) +{ + ErtsCodeIndex dst = erts_staging_code_ix(); + ErtsCodeIndex src = erts_active_code_ix(); + beam_catch_t* prev_vec = bccix[dst].beam_catches; + + ASSERT(!bccix[src].is_staging && !bccix[dst].is_staging); + + bccix[dst] = bccix[src]; + gc_old_vec(prev_vec); + IF_DEBUG(bccix[dst].is_staging = 1); +} + +void beam_catches_end_staging(int commit) +{ + IF_DEBUG(bccix[erts_staging_code_ix()].is_staging = 0); } unsigned beam_catches_cons(BeamInstr *cp, unsigned cdr) { int i; + struct bc_pool* p = &bccix[erts_staging_code_ix()]; + ASSERT(p->is_staging); /* * Allocate from free_list while it is non-empty. * If free_list is empty, allocate at high_mark. - * - * This avoids the need to initialise the free list in - * beam_catches_init(), which would cost O(TABSIZ) time. */ - if( free_list >= 0 ) { - i = free_list; - free_list = beam_catches[i].cdr; - } else if( high_mark < tabsize ) { - i = high_mark; - high_mark++; - } else { - /* No free slots and table is full: realloc table */ - tabsize = 2*tabsize; - beam_catches = erts_realloc(ERTS_ALC_T_CODE, beam_catches, sizeof(beam_catch_t)*tabsize); - i = high_mark; - high_mark++; + if (p->free_list >= 0) { + i = p->free_list; + p->free_list = p->beam_catches[i].cdr; + } + else { + if (p->high_mark >= p->tabsize) { + /* No free slots and table is full: realloc table */ + beam_catch_t* prev_vec = p->beam_catches; + unsigned newsize = p->tabsize*2; + + p->beam_catches = erts_alloc(ERTS_ALC_T_CODE, + newsize*sizeof(beam_catch_t)); + sys_memcpy(p->beam_catches, prev_vec, + p->tabsize*sizeof(beam_catch_t)); + gc_old_vec(prev_vec); + p->tabsize = newsize; + } + i = p->high_mark++; } - beam_catches[i].cp = cp; - beam_catches[i].cdr = cdr; + p->beam_catches[i].cp = cp; + p->beam_catches[i].cdr = cdr; return i; } BeamInstr *beam_catches_car(unsigned i) { - if( i >= tabsize ) { + struct bc_pool* p = &bccix[erts_active_code_ix()]; + + if (i >= p->tabsize ) { erl_exit(1, "beam_catches_delmod: index %#x is out of range\r\n", i); } - return beam_catches[i].cp; + return p->beam_catches[i].cp; } -void beam_catches_delmod(unsigned head, BeamInstr *code, unsigned code_bytes) +void beam_catches_delmod(unsigned head, BeamInstr *code, unsigned code_bytes, + ErtsCodeIndex code_ix) { + struct bc_pool* p = &bccix[code_ix]; unsigned i, cdr; + ASSERT((code_ix == erts_active_code_ix()) != bccix[erts_staging_code_ix()].is_staging); for(i = head; i != (unsigned)-1;) { - if( i >= tabsize ) { + if (i >= p->tabsize) { erl_exit(1, "beam_catches_delmod: index %#x is out of range\r\n", i); } - if( (char*)beam_catches[i].cp - (char*)code >= code_bytes ) { + if( (char*)p->beam_catches[i].cp - (char*)code >= code_bytes ) { erl_exit(1, - "beam_catches_delmod: item %#x has cp %#lx which is not " - "in module's range [%#lx,%#lx[\r\n", - i, (long)beam_catches[i].cp, - (long)code, (long)((char*)code + code_bytes)); + "beam_catches_delmod: item %#x has cp %p which is not " + "in module's range [%p,%p[\r\n", + i, p->beam_catches[i].cp, code, ((char*)code + code_bytes)); } - beam_catches[i].cp = 0; - cdr = beam_catches[i].cdr; - beam_catches[i].cdr = free_list; - free_list = i; + p->beam_catches[i].cp = 0; + cdr = p->beam_catches[i].cdr; + p->beam_catches[i].cdr = p->free_list; + p->free_list = i; i = cdr; } } diff --git a/erts/emulator/beam/beam_catches.h b/erts/emulator/beam/beam_catches.h index 6223427f0d..51ef463b2f 100644 --- a/erts/emulator/beam/beam_catches.h +++ b/erts/emulator/beam/beam_catches.h @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 2000-2010. All Rights Reserved. + * Copyright Ericsson AB 2000-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -20,12 +20,21 @@ #ifndef __BEAM_CATCHES_H #define __BEAM_CATCHES_H +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif +#include "sys.h" +#include "code_ix.h" + #define BEAM_CATCHES_NIL (-1) void beam_catches_init(void); +void beam_catches_start_staging(void); +void beam_catches_end_staging(int commit); unsigned beam_catches_cons(BeamInstr* cp, unsigned cdr); BeamInstr *beam_catches_car(unsigned i); -void beam_catches_delmod(unsigned head, BeamInstr* code, unsigned code_bytes); +void beam_catches_delmod(unsigned head, BeamInstr* code, unsigned code_bytes, + ErtsCodeIndex); #define catch_pc(x) beam_catches_car(catch_val((x))) diff --git a/erts/emulator/beam/beam_debug.c b/erts/emulator/beam/beam_debug.c index 8041c92162..a3cd08834f 100644 --- a/erts/emulator/beam/beam_debug.c +++ b/erts/emulator/beam/beam_debug.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 1998-2011. All Rights Reserved. + * Copyright Ericsson AB 1998-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -84,6 +84,7 @@ erts_debug_breakpoint_2(BIF_ALIST_2) int i; int specified = 0; Eterm res; + BpFunctions f; if (bool != am_true && bool != am_false) goto error; @@ -114,18 +115,30 @@ erts_debug_breakpoint_2(BIF_ALIST_2) mfa[2] = signed_val(mfa[2]); } + if (!erts_try_seize_code_write_permission(BIF_P)) { + ERTS_BIF_YIELD2(bif_export[BIF_erts_debug_breakpoint_2], + BIF_P, BIF_ARG_1, BIF_ARG_2); + } erts_smp_proc_unlock(p, ERTS_PROC_LOCK_MAIN); erts_smp_thr_progress_block(); + erts_bp_match_functions(&f, mfa, specified); if (bool == am_true) { - res = make_small(erts_set_debug_break(mfa, specified)); + erts_set_debug_break(&f); + erts_install_breakpoints(&f); + erts_commit_staged_bp(); } else { - res = make_small(erts_clear_debug_break(mfa, specified)); + erts_clear_debug_break(&f); + erts_commit_staged_bp(); + erts_uninstall_breakpoints(&f); } + erts_consolidate_bp_data(&f, 1); + res = make_small(f.matched); + erts_bp_free_matched_functions(&f); erts_smp_thr_progress_unblock(); erts_smp_proc_lock(p, ERTS_PROC_LOCK_MAIN); - + erts_release_code_write_permission(); return res; error: @@ -207,6 +220,7 @@ erts_debug_disassemble_1(BIF_ALIST_1) BIF_RET(am_false); } } else if (is_tuple(addr)) { + ErtsCodeIndex code_ix; Module* modp; Eterm mod; Eterm name; @@ -225,14 +239,14 @@ erts_debug_disassemble_1(BIF_ALIST_1) goto error; } arity = signed_val(tp[3]); - modp = erts_get_module(mod); + code_ix = erts_active_code_ix(); + modp = erts_get_module(mod, code_ix); /* * Try the export entry first to allow disassembly of special functions * such as erts_debug:apply/4. Then search for it in the module. */ - - if ((ep = erts_find_function(mod, name, arity)) != NULL) { + if ((ep = erts_find_function(mod, name, arity, code_ix)) != NULL) { /* XXX: add "&& ep->address != ep->code+3" condition? * Consider a traced function. * Its ep will have ep->address == ep->code+3. @@ -241,9 +255,9 @@ erts_debug_disassemble_1(BIF_ALIST_1) * But this code_ptr will point to the start of the Export, * not the function's func_info instruction. BOOM !? */ - code_ptr = ((BeamInstr *) ep->address) - 5; + code_ptr = ((BeamInstr *) ep->addressv[code_ix]) - 5; funcinfo = code_ptr+2; - } else if (modp == NULL || (code_base = modp->code) == NULL) { + } else if (modp == NULL || (code_base = modp->curr.code) == NULL) { BIF_RET(am_undef); } else { n = code_base[MI_NUM_FUNCTIONS]; @@ -621,6 +635,11 @@ print_op(int to, void *to_arg, int op, int size, BeamInstr* addr) case op_i_put_tuple_rI: case op_i_put_tuple_xI: case op_i_put_tuple_yI: + case op_new_map_jdII: + case op_update_map_assoc_jsdII: + case op_update_map_exact_jsdII: + case op_i_has_map_fields_fsI: + case op_i_get_map_elements_fsI: { int n = unpacked[-1]; diff --git a/erts/emulator/beam/beam_emu.c b/erts/emulator/beam/beam_emu.c index 6d3b15cd46..1026e5f649 100644 --- a/erts/emulator/beam/beam_emu.c +++ b/erts/emulator/beam/beam_emu.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 1996-2012. All Rights Reserved. + * Copyright Ericsson AB 1996-2014. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -31,6 +31,7 @@ #include "big.h" #include "beam_load.h" #include "erl_binary.h" +#include "erl_map.h" #include "erl_bits.h" #include "dist.h" #include "beam_bp.h" @@ -48,7 +49,7 @@ # define OpCase(OpCode) case op_##OpCode # define CountCase(OpCode) case op_count_##OpCode # define OpCode(OpCode) ((Uint*)op_##OpCode) -# define Goto(Rel) {Go = (int)(Rel); goto emulator_loop;} +# define Goto(Rel) {Go = (int)(UWord)(Rel); goto emulator_loop;} # define LabelAddr(Addr) &&##Addr #else # define OpCase(OpCode) lb_##OpCode @@ -63,18 +64,15 @@ # define PROCESS_MAIN_CHK_LOCKS(P) \ do { \ if ((P)) { \ - erts_pix_lock_t *pix_lock__ = ERTS_PIX2PIXLOCK(internal_pid_index((P)->id));\ erts_proc_lc_chk_only_proc_main((P)); \ - erts_pix_lock(pix_lock__); \ - ASSERT(0 < (P)->lock.refc && (P)->lock.refc < erts_no_schedulers*5);\ - erts_pix_unlock(pix_lock__); \ } \ else \ erts_lc_check_exact(NULL, 0); \ ERTS_SMP_LC_ASSERT(!erts_thr_progress_is_blocking()); \ } while (0) # define ERTS_SMP_REQ_PROC_MAIN_LOCK(P) \ - if ((P)) erts_proc_lc_require_lock((P), ERTS_PROC_LOCK_MAIN) + if ((P)) erts_proc_lc_require_lock((P), ERTS_PROC_LOCK_MAIN,\ + __FILE__, __LINE__) # define ERTS_SMP_UNREQ_PROC_MAIN_LOCK(P) \ if ((P)) erts_proc_lc_unrequire_lock((P), ERTS_PROC_LOCK_MAIN) # else @@ -137,7 +135,7 @@ do { \ /* We don't check the range if an ordinary switch is used */ #ifdef NO_JUMP_TABLE -#define VALID_INSTR(IP) (0 <= (int)(IP) && ((int)(IP) < (NUMBER_OF_OPCODES*2+10))) +#define VALID_INSTR(IP) ((UWord)(IP) < (NUMBER_OF_OPCODES*2+10)) #else #define VALID_INSTR(IP) \ ((SWord)LabelAddr(emulator_loop) <= (SWord)(IP) && \ @@ -221,7 +219,7 @@ BeamInstr beam_continue_exit[1]; BeamInstr* em_call_error_handler; BeamInstr* em_apply_bif; -BeamInstr* em_call_traced_function; +BeamInstr* em_call_nif; /* NOTE These should be the only variables containing trace instructions. @@ -236,11 +234,6 @@ BeamInstr beam_return_time_trace[1]; /* OpCode(i_return_time_trace) */ /* - * We should warn only once for tuple funs. - */ -static erts_smp_atomic_t warned_for_tuple_funs; - -/* * All Beam instructions in numerical order. */ @@ -495,7 +488,7 @@ extern int count_instructions; do { \ if (FCALLS > 0) { \ Eterm* dis_next; \ - SET_I(((Export *) Arg(0))->address); \ + SET_I(((Export *) Arg(0))->addressv[erts_active_code_ix()]); \ dis_next = (Eterm *) *I; \ FCALLS--; \ CHECK_ARGS(I); \ @@ -504,7 +497,7 @@ extern int count_instructions; && FCALLS > neg_o_reds) { \ goto save_calls1; \ } else { \ - SET_I(((Export *) Arg(0))->address); \ + SET_I(((Export *) Arg(0))->addressv[erts_active_code_ix()]); \ CHECK_ARGS(I); \ goto context_switch; \ } \ @@ -526,7 +519,7 @@ extern int count_instructions; # define Dispatchfun() DispatchMacroFun() #endif -#define Self(R) R = c_p->id +#define Self(R) R = c_p->common.id #define Node(R) R = erts_this_node->sysname #define Arg(N) I[(N)+1] @@ -710,6 +703,19 @@ extern int count_instructions; Fail; \ } +#define IsMap(Src, Fail) if (is_not_map(Src)) { Fail; } + +#define HasMapField(Src, Key, Fail) if (has_not_map_field(Src, Key)) { Fail; } + +#define GetMapElement(Src, Key, Dst, Fail) \ + do { \ + Eterm _res = get_map_element(Src, Key); \ + if (is_non_value(_res)) { \ + Fail; \ + } \ + Dst = _res; \ + } while (0) + #define IsFunction(X, Action) \ do { \ if ( !(is_any_fun(X)) ) { \ @@ -934,6 +940,7 @@ extern int count_instructions; # define NOINLINE #endif + /* * The following functions are called directly by process_main(). * Don't inline them. @@ -952,7 +959,13 @@ static BeamInstr* apply_fun(Process* p, Eterm fun, Eterm args, Eterm* reg) NOINLINE; static Eterm new_fun(Process* p, Eterm* reg, ErlFunEntry* fe, int num_free) NOINLINE; - +static Eterm new_map(Process* p, Eterm* reg, BeamInstr* I) NOINLINE; +static Eterm update_map_assoc(Process* p, Eterm* reg, + Eterm map, BeamInstr* I) NOINLINE; +static Eterm update_map_exact(Process* p, Eterm* reg, + Eterm map, BeamInstr* I) NOINLINE; +static int has_not_map_field(Eterm map, Eterm key); +static Eterm get_map_element(Eterm map, Eterm key); /* * Functions not directly called by process_main(). OK to inline. @@ -965,17 +978,9 @@ static void save_stacktrace(Process* c_p, BeamInstr* pc, Eterm* reg, static struct StackTrace * get_trace_from_exc(Eterm exc); static Eterm make_arglist(Process* c_p, Eterm* reg, int a); -#if defined(VXWORKS) -static int init_done; -#endif - void init_emulator(void) { -#if defined(VXWORKS) - init_done = 0; -#endif - erts_smp_atomic_init_nob(&warned_for_tuple_funs, (erts_aint_t) 0); process_main(); } @@ -1088,17 +1093,6 @@ init_emulator(void) #endif /* USE_VM_PROBES */ -#ifdef USE_VM_PROBES -void -dtrace_drvport_str(ErlDrvPort drvport, char *port_buf) -{ - Port *port = erts_drvport2port(drvport); - - erts_snprintf(port_buf, DTRACE_TERM_BUF_SIZE, "#Port<%lu.%lu>", - port_channel_no(port->id), - port_number(port->id)); -} -#endif /* * process_main() is called twice: * The first call performs some initialisation, including exporting @@ -1107,9 +1101,7 @@ dtrace_drvport_str(ErlDrvPort drvport, char *port_buf) */ void process_main(void) { -#if !defined(VXWORKS) static int init_done = 0; -#endif Process* c_p = NULL; int reds_used; #ifdef DEBUG @@ -1184,6 +1176,9 @@ void process_main(void) Eterm pt_arity; /* Used by do_put_tuple */ + Uint64 start_time = 0; /* Monitor long schedule */ + BeamInstr* start_time_i = NULL; + ERL_BITS_DECLARE_STATEP; /* Has to be last declaration */ @@ -1196,16 +1191,35 @@ void process_main(void) * c_p->arg_reg before calling the scheduler. */ if (!init_done) { + /* This should only be reached during the init phase when only the main + * process is running. I.e. there is no race for init_done. + */ init_done = 1; goto init_emulator; } + c_p = NULL; reds_used = 0; + goto do_schedule1; do_schedule: reds_used = REDS_IN(c_p) - FCALLS; do_schedule1: + + if (start_time != 0) { + Sint64 diff = erts_timestamp_millis() - start_time; + if (diff > 0 && (Uint) diff > erts_system_monitor_long_schedule +#ifdef ERTS_DIRTY_SCHEDULERS + && !ERTS_SCHEDULER_IS_DIRTY(c_p->scheduler_data) +#endif + ) { + BeamInstr *inptr = find_function_from_pc(start_time_i); + BeamInstr *outptr = find_function_from_pc(c_p->i); + monitor_long_schedule_proc(c_p,inptr,outptr,(Uint) diff); + } + } + PROCESS_MAIN_CHK_LOCKS(c_p); ERTS_SMP_UNREQ_PROC_MAIN_LOCK(c_p); #if HALFWORD_HEAP @@ -1214,11 +1228,18 @@ void process_main(void) ERTS_VERIFY_UNUSED_TEMP_ALLOC(c_p); c_p = schedule(c_p, reds_used); ERTS_VERIFY_UNUSED_TEMP_ALLOC(c_p); + start_time = 0; #ifdef DEBUG - pid = c_p->id; /* Save for debugging purpouses */ + pid = c_p->common.id; /* Save for debugging purpouses */ #endif ERTS_SMP_REQ_PROC_MAIN_LOCK(c_p); PROCESS_MAIN_CHK_LOCKS(c_p); + + if (erts_system_monitor_long_schedule != 0) { + start_time = erts_timestamp_millis(); + start_time_i = c_p->i; + } + reg = ERTS_PROC_GET_SCHDATA(c_p)->x_reg_array; freg = ERTS_PROC_GET_SCHDATA(c_p)->f_reg_array; #if !HEAP_ON_C_STACK @@ -1247,7 +1268,7 @@ void process_main(void) reds = c_p->fcalls; if (ERTS_PROC_GET_SAVED_CALLS_BUF(c_p) - && (c_p->trace_flags & F_SENSITIVE) == 0) { + && (ERTS_TRACE_FLAGS(c_p) & F_SENSITIVE) == 0) { neg_o_reds = -reds; FCALLS = REDS_IN(c_p) = 0; } else { @@ -1280,7 +1301,7 @@ void process_main(void) (Eterm)fptr[1], (Uint)fptr[2], NULL, fun_buf); } else { - erts_snprintf(fun_buf, sizeof(fun_buf), + erts_snprintf(fun_buf, sizeof(DTRACE_CHARBUF_NAME(fun_buf)), "<unknown/%p>", next); } } @@ -1507,7 +1528,7 @@ void process_main(void) */ #ifdef USE_VM_CALL_PROBES if (DTRACE_ENABLED(global_function_entry)) { - BeamInstr* fp = (BeamInstr *) (((Export *) Arg(0))->address); + BeamInstr* fp = (BeamInstr *) (((Export *) Arg(0))->addressv[erts_active_code_ix()]); DTRACE_GLOBAL_CALL(c_p, (Eterm)fp[-3], (Eterm)fp[-2], fp[-1]); } #endif @@ -1522,7 +1543,7 @@ void process_main(void) SET_CP(c_p, I+2); #ifdef USE_VM_CALL_PROBES if (DTRACE_ENABLED(global_function_entry)) { - BeamInstr* fp = (BeamInstr *) (((Export *) Arg(0))->address); + BeamInstr* fp = (BeamInstr *) (((Export *) Arg(0))->addressv[erts_active_code_ix()]); DTRACE_GLOBAL_CALL(c_p, (Eterm)fp[-3], (Eterm)fp[-2], fp[-1]); } #endif @@ -1535,7 +1556,7 @@ void process_main(void) OpCase(i_call_ext_only_e): #ifdef USE_VM_CALL_PROBES if (DTRACE_ENABLED(global_function_entry)) { - BeamInstr* fp = (BeamInstr *) (((Export *) Arg(0))->address); + BeamInstr* fp = (BeamInstr *) (((Export *) Arg(0))->addressv[erts_active_code_ix()]); DTRACE_GLOBAL_CALL(c_p, (Eterm)fp[-3], (Eterm)fp[-2], fp[-1]); } #endif @@ -1611,6 +1632,7 @@ void process_main(void) reg[0] = r(0); result = erl_send(c_p, r(0), x(1)); PreFetch(0, next); + ERTS_VERIFY_UNUSED_TEMP_ALLOC(c_p); ERTS_SMP_REQ_PROC_MAIN_LOCK(c_p); PROCESS_MAIN_CHK_LOCKS(c_p); if (c_p->mbuf || MSO(c_p).overhead >= BIN_VHEAP_SZ(c_p)) { @@ -1826,13 +1848,12 @@ void process_main(void) msgp = PEEK_MESSAGE(c_p); if (msgp) erts_smp_proc_unlock(c_p, ERTS_PROC_LOCKS_MSG_RECEIVE); - else { + else #endif + { SET_I((BeamInstr *) Arg(0)); Goto(*I); /* Jump to a wait or wait_timeout instruction */ -#ifdef ERTS_SMP } -#endif } ErtsMoveMsgAttachmentIntoProc(msgp, c_p, E, HTOP, FCALLS, { @@ -1887,14 +1908,14 @@ void process_main(void) erts_fprintf(stderr, "Dtrace -> (%T) stop spreading " "tag %T with message %T\r\n", - c_p->id,DT_UTAG(c_p),ERL_MESSAGE_TERM(msgp)); + c_p->common.id,DT_UTAG(c_p),ERL_MESSAGE_TERM(msgp)); #endif } else { #ifdef DTRACE_TAG_HARDDEBUG erts_fprintf(stderr, "Dtrace -> (%T) kill tag %T with " "message %T\r\n", - c_p->id,DT_UTAG(c_p),ERL_MESSAGE_TERM(msgp)); + c_p->common.id,DT_UTAG(c_p),ERL_MESSAGE_TERM(msgp)); #endif DT_UTAG(c_p) = NIL; SEQ_TRACE_TOKEN(c_p) = NIL; @@ -1919,7 +1940,7 @@ void process_main(void) erts_fprintf(stderr, "Dtrace -> (%T) receive tag (%T) " "with message %T\r\n", - c_p->id, DT_UTAG(c_p), ERL_MESSAGE_TERM(msgp)); + c_p->common.id, DT_UTAG(c_p), ERL_MESSAGE_TERM(msgp)); #endif } else { #endif @@ -1935,7 +1956,7 @@ void process_main(void) } msg = ERL_MESSAGE_TERM(msgp); seq_trace_output(SEQ_TRACE_TOKEN(c_p), msg, SEQ_TRACE_RECEIVE, - c_p->id, c_p); + c_p->common.id, c_p); #ifdef USE_VM_PROBES } #endif @@ -2061,11 +2082,11 @@ void process_main(void) OpCase(wait_f): wait2: { - ASSERT(!ERTS_PROC_IS_EXITING(c_p)); c_p->i = (BeamInstr *) Arg(0); /* L1 */ SWAPOUT; c_p->arity = 0; - c_p->status = P_WAITING; + erts_smp_atomic32_read_band_relb(&c_p->state, ~ERTS_PSFLG_ACTIVE); + ASSERT(!ERTS_PROC_IS_EXITING(c_p)); erts_smp_proc_unlock(c_p, ERTS_PROC_LOCKS_MSG_RECEIVE); c_p->current = NULL; goto do_schedule; @@ -2332,6 +2353,175 @@ void process_main(void) Goto(*I); } + OpCase(new_map_jdII): { + Eterm res; + + x(0) = r(0); + SWAPOUT; + res = new_map(c_p, reg, I); + SWAPIN; + r(0) = x(0); + StoreResult(res, Arg(1)); + Next(4+Arg(3)); + } + + OpCase(i_has_map_fields_fsI): { + map_t* mp; + Eterm map; + Eterm field; + Eterm *ks; + BeamInstr* fs; + Uint sz,n; + + GetArg1(1, map); + + /* this instruction assumes Arg1 is a map, + * i.e. that it follows a test is_map if needed. + */ + + mp = (map_t *)map_val(map); + sz = map_get_size(mp); + + if (sz == 0) { + SET_I((BeamInstr *) Arg(0)); + goto has_map_fields_fail; + } + + ks = map_get_keys(mp); + n = (Uint)Arg(2); + fs = &Arg(3); /* pattern fields */ + + ASSERT(n>0); + + while(sz) { + field = (Eterm)*fs; + if (EQ(field,*ks)) { + n--; + fs++; + if (n == 0) break; + } + ks++; sz--; + } + + if (n) { + SET_I((BeamInstr *) Arg(0)); + goto has_map_fields_fail; + } + + I += 4 + Arg(2); +has_map_fields_fail: + ASSERT(VALID_INSTR(*I)); + Goto(*I); + } + +#define PUT_TERM_REG(term, desc) \ +do { \ + switch ((desc) & _TAG_IMMED1_MASK) { \ + case (R_REG_DEF << _TAG_PRIMARY_SIZE) | TAG_PRIMARY_HEADER: \ + r(0) = (term); \ + break; \ + case (X_REG_DEF << _TAG_PRIMARY_SIZE) | TAG_PRIMARY_HEADER: \ + x((desc) >> _TAG_IMMED1_SIZE) = (term); \ + break; \ + case (Y_REG_DEF << _TAG_PRIMARY_SIZE) | TAG_PRIMARY_HEADER: \ + y((desc) >> _TAG_IMMED1_SIZE) = (term); \ + break; \ + default: \ + ASSERT(0); \ + break; \ + } \ +} while(0) + + OpCase(i_get_map_elements_fsI): { + Eterm map; + map_t *mp; + Eterm field; + Eterm *ks; + Eterm *vs; + BeamInstr *fs; + Uint sz,n; + + GetArg1(1, map); + + /* this instruction assumes Arg1 is a map, + * i.e. that it follows a test is_map if needed. + */ + + mp = (map_t *)map_val(map); + sz = map_get_size(mp); + + if (sz == 0) { + SET_I((BeamInstr *) Arg(0)); + goto get_map_elements_fail; + } + + n = (Uint)Arg(2) / 2; + fs = &Arg(3); /* pattern fields and target registers */ + ks = map_get_keys(mp); + vs = map_get_values(mp); + + while(sz) { + field = (Eterm)*fs; + if (EQ(field,*ks)) { + PUT_TERM_REG(*vs, fs[1]); + n--; + fs += 2; + /* no more values to fetch, we are done */ + if (n == 0) break; + } + ks++; sz--; + vs++; + } + + if (n) { + SET_I((BeamInstr *) Arg(0)); + goto get_map_elements_fail; + } + + I += 4 + Arg(2); +get_map_elements_fail: + ASSERT(VALID_INSTR(*I)); + Goto(*I); + } +#undef PUT_TERM_REG + + OpCase(update_map_assoc_jsdII): { + Eterm res; + Eterm map; + + GetArg1(1, map); + x(0) = r(0); + SWAPOUT; + res = update_map_assoc(c_p, reg, map, I); + SWAPIN; + if (is_value(res)) { + r(0) = x(0); + StoreResult(res, Arg(2)); + Next(5+Arg(4)); + } else { + goto badarg; + } + } + + OpCase(update_map_exact_jsdII): { + Eterm res; + Eterm map; + + GetArg1(1, map); + x(0) = r(0); + SWAPOUT; + res = update_map_exact(c_p, reg, map, I); + SWAPIN; + if (is_value(res)) { + r(0) = x(0); + StoreResult(res, Arg(2)); + Next(5+Arg(4)); + } else { + goto badarg; + } + } + + /* * All guards with zero arguments have special instructions: * self/0 @@ -2588,6 +2778,7 @@ void process_main(void) reg[0] = r(0); result = (*bf)(c_p, reg, I); ASSERT(!ERTS_PROC_IS_EXITING(c_p) || is_non_value(result)); + ERTS_VERIFY_UNUSED_TEMP_ALLOC(c_p); ERTS_HOLE_CHECK(c_p); ERTS_SMP_REQ_PROC_MAIN_LOCK(c_p); PROCESS_MAIN_CHK_LOCKS(c_p); @@ -3144,10 +3335,6 @@ void process_main(void) c_p->arg_reg[0] = r(0); SWAPOUT; c_p->i = I; - erts_smp_proc_lock(c_p, ERTS_PROC_LOCK_STATUS); - if (c_p->status != P_SUSPENDED) - erts_add_to_runq(c_p); - erts_smp_proc_unlock(c_p, ERTS_PROC_LOCK_STATUS); goto do_schedule1; } @@ -3326,7 +3513,6 @@ void process_main(void) PROCESS_MAIN_CHK_LOCKS(c_p); bif_nif_arity = I[-1]; ERTS_SMP_UNREQ_PROC_MAIN_LOCK(c_p); - ERTS_VERIFY_UNUSED_TEMP_ALLOC(c_p); ASSERT(!ERTS_PROC_IS_EXITING(c_p)); { @@ -3337,6 +3523,13 @@ void process_main(void) reg[0] = r(0); nif_bif_result = (*fp)(&env, bif_nif_arity, reg); erts_post_nif(&env); +#ifdef ERTS_DIRTY_SCHEDULERS + if (is_non_value(nif_bif_result) && c_p->freason == TRAP) { + Export* ep = ERTS_PROC_GET_DIRTY_SCHED_TRAP_EXPORT(c_p); + ep->code[0] = I[-3]; + ep->code[1] = I[-2]; + } +#endif } ASSERT(!ERTS_PROC_IS_EXITING(c_p) || is_non_value(nif_bif_result)); PROCESS_MAIN_CHK_LOCKS(c_p); @@ -3371,7 +3564,6 @@ void process_main(void) bif_nif_arity = I[-1]; ASSERT(bif_nif_arity <= 3); ERTS_SMP_UNREQ_PROC_MAIN_LOCK(c_p); - ERTS_VERIFY_UNUSED_TEMP_ALLOC(c_p); reg[0] = r(0); { Eterm (*bf)(Process*, Eterm*, BeamInstr*) = vbf; @@ -4341,7 +4533,19 @@ void process_main(void) flags = Arg(2); BsGetFieldSize(tmp_arg2, (flags >> 3), ClauseFail(), size); if (size >= SMALL_BITS) { - Uint wordsneeded = 1+WSIZE(NBYTES((Uint) size)); + Uint wordsneeded; + /* check bits size before potential gc. + * We do not want a gc and then realize we don't need + * the allocated space (i.e. if the op fails) + * + * remember to reacquire the matchbuffer after gc. + */ + + mb = ms_matchbuffer(tmp_arg1); + if (mb->size - mb->offset < size) { + ClauseFail(); + } + wordsneeded = 1+WSIZE(NBYTES((Uint) size)); TestHeapPreserve(wordsneeded, Arg(1), tmp_arg1); } mb = ms_matchbuffer(tmp_arg1); @@ -4580,64 +4784,6 @@ void process_main(void) * Trace and debugging support. */ - /* - * At this point, I points to the code[3] in the export entry for - * a trace-enabled function. - * - * code[0]: Module - * code[1]: Function - * code[2]: Arity - * code[3]: &&call_traced_function - * code[4]: Address of function. - */ - OpCase(call_traced_function): { - if (IS_TRACED_FL(c_p, F_TRACE_CALLS)) { - unsigned offset = offsetof(Export, code) + 3*sizeof(BeamInstr); - Export* ep = (Export *) (((char *)I)-offset); - Uint32 flags; - - SWAPOUT; - reg[0] = r(0); - PROCESS_MAIN_CHK_LOCKS(c_p); - ERTS_SMP_UNREQ_PROC_MAIN_LOCK(c_p); - flags = erts_call_trace(c_p, ep->code, ep->match_prog_set, reg, - 0, &c_p->tracer_proc); - ERTS_VERIFY_UNUSED_TEMP_ALLOC(c_p); - ERTS_SMP_REQ_PROC_MAIN_LOCK(c_p); - PROCESS_MAIN_CHK_LOCKS(c_p); - ASSERT(!ERTS_PROC_IS_EXITING(c_p)); - SWAPIN; - - if (flags & MATCH_SET_RX_TRACE) { - ASSERT(c_p->htop <= E && E <= c_p->hend); - if (E - 3 < HTOP) { - /* SWAPOUT, SWAPIN was done and r(0) was saved above */ - PROCESS_MAIN_CHK_LOCKS(c_p); - FCALLS -= erts_garbage_collect(c_p, 3, reg, ep->code[2]); - ERTS_VERIFY_UNUSED_TEMP_ALLOC(c_p); - PROCESS_MAIN_CHK_LOCKS(c_p); - r(0) = reg[0]; - SWAPIN; - } - E -= 3; - ASSERT(c_p->htop <= E && E <= c_p->hend); - ASSERT(is_CP((BeamInstr)(ep->code))); - ASSERT(is_internal_pid(c_p->tracer_proc) || - is_internal_port(c_p->tracer_proc)); - E[2] = make_cp(c_p->cp); /* Code in lower range on halfword */ - E[1] = am_true; /* Process tracer */ - E[0] = make_cp(ep->code); - c_p->cp = (flags & MATCH_SET_EXCEPTION_TRACE) - ? beam_exception_trace : beam_return_trace; - erts_smp_proc_lock(c_p, ERTS_PROC_LOCKS_ALL_MINOR); - c_p->trace_flags |= F_EXCEPTION_TRACE; - erts_smp_proc_unlock(c_p, ERTS_PROC_LOCKS_ALL_MINOR); - } - } - SET_I((BeamInstr *)Arg(0)); - Dispatch(); - } - OpCase(return_trace): { BeamInstr* code = (BeamInstr *) (UWord) E[0]; @@ -4652,80 +4798,22 @@ void process_main(void) Goto(*I); } - OpCase(i_count_breakpoint): { - BeamInstr real_I; - - ErtsCountBreak(c_p, (BeamInstr *) I, &real_I); - ASSERT(VALID_INSTR(real_I)); - Goto(real_I); - } - - /* need to send mfa instead of bdt pointer - * the pointer might be deallocated. - */ - - OpCase(i_time_breakpoint): { + OpCase(i_generic_breakpoint): { BeamInstr real_I; - BpData **bds = (BpData **) (I)[-4]; - BpDataTime *bdt = NULL; - Uint ix = 0; -#ifdef ERTS_SMP - ix = c_p->scheduler_data->no - 1; -#else - ix = 0; -#endif - bdt = (BpDataTime *)bds[ix]; - - ASSERT((I)[-5] == (BeamInstr) BeamOp(op_i_func_info_IaaI)); - ASSERT(bdt); - bdt = (BpDataTime *) bdt->next; - ASSERT(bdt); - bds[ix] = (BpData *) bdt; - real_I = bdt->orig_instr; + ASSERT(I[-5] == (BeamInstr) BeamOp(op_i_func_info_IaaI)); + SWAPOUT; + reg[0] = r(0); + real_I = erts_generic_breakpoint(c_p, I, reg); + r(0) = reg[0]; + SWAPIN; ASSERT(VALID_INSTR(real_I)); - - if (IS_TRACED_FL(c_p, F_TRACE_CALLS) && !(bdt->pause)) { - if ( (*(c_p->cp) == (BeamInstr) OpCode(i_return_time_trace)) || - (*(c_p->cp) == (BeamInstr) OpCode(return_trace)) || - (*(c_p->cp) == (BeamInstr) OpCode(i_return_to_trace))) { - /* This _IS_ a tail recursive call */ - SWAPOUT; - erts_trace_time_break(c_p, I, bdt, ERTS_BP_CALL_TIME_TAIL_CALL); - SWAPIN; - } else { - SWAPOUT; - erts_trace_time_break(c_p, I, bdt, ERTS_BP_CALL_TIME_CALL); - - /* r register needs to be copied to the array - * for the garbage collector - */ - ASSERT(c_p->htop <= E && E <= c_p->hend); - if (E - 2 < HTOP) { - reg[0] = r(0); - PROCESS_MAIN_CHK_LOCKS(c_p); - FCALLS -= erts_garbage_collect(c_p, 2, reg, I[-1]); - ERTS_VERIFY_UNUSED_TEMP_ALLOC(c_p); - PROCESS_MAIN_CHK_LOCKS(c_p); - r(0) = reg[0]; - } - SWAPIN; - - ASSERT(c_p->htop <= E && E <= c_p->hend); - - E -= 2; - E[0] = make_cp(I); - E[1] = make_cp(c_p->cp); /* original return address */ - c_p->cp = beam_return_time_trace; - } - } - Goto(real_I); } OpCase(i_return_time_trace): { BeamInstr *pc = (BeamInstr *) (UWord) E[0]; SWAPOUT; - erts_trace_time_break(c_p, pc, NULL, ERTS_BP_CALL_TIME_RETURN); + erts_trace_time_return(c_p, pc); SWAPIN; c_p->cp = NULL; SET_I((BeamInstr *) cp_val(E[1])); @@ -4733,114 +4821,6 @@ void process_main(void) Goto(*I); } - OpCase(i_trace_breakpoint): - if (! IS_TRACED_FL(c_p, F_TRACE_CALLS)) { - BeamInstr real_I; - - ErtsBreakSkip(c_p, (BeamInstr *) I, &real_I); - Goto(real_I); - } - /* Fall through to next case */ - OpCase(i_mtrace_breakpoint): { - BeamInstr real_I; - Uint32 flags; - Eterm tracer_pid; - Uint* cpp; - int return_to_trace = 0, need = 0; - flags = 0; - SWAPOUT; - reg[0] = r(0); - - if (*(c_p->cp) == (BeamInstr) OpCode(return_trace)) { - cpp = &E[2]; - } else if (*(c_p->cp) == (BeamInstr) OpCode(i_return_to_trace)) { - return_to_trace = !0; - cpp = &E[0]; - } else if (*(c_p->cp) == (BeamInstr) OpCode(i_return_time_trace)) { - return_to_trace = !0; - cpp = &E[0]; - } else { - cpp = NULL; - } - if (cpp) { - /* This _IS_ a tail recursive call, if there are - * return_trace and/or i_return_to_trace stackframes - * on the stack, they are not intermixed with y registers - */ - BeamInstr *cp_save = c_p->cp; - for (;;) { - ASSERT(is_CP(*cpp)); - if (*cp_val(*cpp) == (BeamInstr) OpCode(return_trace)) { - cpp += 3; - } else if (*cp_val(*cpp) == (BeamInstr) OpCode(i_return_to_trace)) { - return_to_trace = !0; - cpp += 1; - } else if (*cp_val(*cpp) == (BeamInstr) OpCode(i_return_time_trace)) { - cpp += 2; - } else - break; - } - c_p->cp = (BeamInstr *) cp_val(*cpp); - ASSERT(is_CP(*cpp)); - ERTS_SMP_UNREQ_PROC_MAIN_LOCK(c_p); - real_I = erts_trace_break(c_p, I, reg, &flags, &tracer_pid); - ERTS_SMP_REQ_PROC_MAIN_LOCK(c_p); - SWAPIN; /* Needed by shared heap. */ - c_p->cp = cp_save; - } else { - ERTS_SMP_UNREQ_PROC_MAIN_LOCK(c_p); - real_I = erts_trace_break(c_p, I, reg, &flags, &tracer_pid); - ERTS_SMP_REQ_PROC_MAIN_LOCK(c_p); - SWAPIN; /* Needed by shared heap. */ - } - - ASSERT(!ERTS_PROC_IS_EXITING(c_p)); - - if ((flags & MATCH_SET_RETURN_TO_TRACE) && !return_to_trace) { - need += 1; - } - if (flags & MATCH_SET_RX_TRACE) { - need += 3; - } - if (need) { - ASSERT(c_p->htop <= E && E <= c_p->hend); - if (E - need < HTOP) { - /* SWAPOUT was done and r(0) was saved above */ - PROCESS_MAIN_CHK_LOCKS(c_p); - FCALLS -= erts_garbage_collect(c_p, need, reg, I[-1]); - ERTS_VERIFY_UNUSED_TEMP_ALLOC(c_p); - PROCESS_MAIN_CHK_LOCKS(c_p); - r(0) = reg[0]; - SWAPIN; - } - } - if ((flags & MATCH_SET_RETURN_TO_TRACE) && !return_to_trace) { - E -= 1; - ASSERT(c_p->htop <= E && E <= c_p->hend); - E[0] = make_cp(c_p->cp); - c_p->cp = (BeamInstr *) beam_return_to_trace; - } - if (flags & MATCH_SET_RX_TRACE) { - E -= 3; - ASSERT(c_p->htop <= E && E <= c_p->hend); - ASSERT(is_CP((Eterm) (UWord) (I - 3))); - ASSERT(am_true == tracer_pid || - is_internal_pid(tracer_pid) || is_internal_port(tracer_pid)); - E[2] = make_cp(c_p->cp); - E[1] = tracer_pid; - E[0] = make_cp(I - 3); /* We ARE at the beginning of an - instruction, - the funcinfo is above i. */ - c_p->cp = - (flags & MATCH_SET_EXCEPTION_TRACE) - ? beam_exception_trace : beam_return_trace; - erts_smp_proc_lock(c_p, ERTS_PROC_LOCKS_ALL_MINOR); - c_p->trace_flags |= F_EXCEPTION_TRACE; - erts_smp_proc_unlock(c_p, ERTS_PROC_LOCKS_ALL_MINOR); - } - Goto(real_I); - } - OpCase(i_return_to_trace): { if (IS_TRACED_FL(c_p, F_TRACE_RETURN_TO)) { Uint *cpp = (Uint*) E; @@ -5110,9 +5090,6 @@ void process_main(void) c_p->arity = 1; /* One living register (the 'true' return value) */ SWAPOUT; c_p->i = I + 1; /* Next instruction */ - erts_smp_proc_lock(c_p, ERTS_PROC_LOCK_STATUS); - erts_add_to_runq(c_p); - erts_smp_proc_unlock(c_p, ERTS_PROC_LOCK_STATUS); c_p->current = NULL; goto do_schedule; } @@ -5193,8 +5170,8 @@ void process_main(void) #endif /* NO_JUMP_TABLE */ em_call_error_handler = OpCode(call_error_handler); - em_call_traced_function = OpCode(call_traced_function); em_apply_bif = OpCode(apply_bif); + em_call_nif = OpCode(call_nif); beam_apply[0] = (BeamInstr) OpCode(i_apply); beam_apply[1] = (BeamInstr) OpCode(normal_exit); @@ -5234,7 +5211,7 @@ void process_main(void) save_calls(c_p, (Export *) Arg(0)); - SET_I(((Export *) Arg(0))->address); + SET_I(((Export *) Arg(0))->addressv[erts_active_code_ix()]); dis_next = (Eterm *) *I; FCALLS--; @@ -5253,6 +5230,8 @@ translate_gc_bif(void* gcf) return bit_size_1; } else if (gcf == erts_gc_byte_size_1) { return byte_size_1; + } else if (gcf == erts_gc_map_size_1) { + return map_size_1; } else if (gcf == erts_gc_abs_1) { return abs_1; } else if (gcf == erts_gc_float_1) { @@ -5510,7 +5489,7 @@ terminate_proc(Process* c_p, Eterm Value) /* EXF_LOG is a primary exception flag */ if (c_p->freason & EXF_LOG) { erts_dsprintf_buf_t *dsbufp = erts_create_logger_dsbuf(); - erts_dsprintf(dsbufp, "Error in process %T ", c_p->id); + erts_dsprintf(dsbufp, "Error in process %T ", c_p->common.id); if (erts_is_alive) erts_dsprintf(dsbufp, "on node %T ", erts_this_node->sysname); erts_dsprintf(dsbufp,"with exit value: %0.*T\n", display_items, Value); @@ -5897,7 +5876,6 @@ build_stacktrace(Process* c_p, Eterm exc) { return res; } - static BeamInstr* call_error_handler(Process* p, BeamInstr* fi, Eterm* reg, Eterm func) { @@ -5911,7 +5889,8 @@ call_error_handler(Process* p, BeamInstr* fi, Eterm* reg, Eterm func) /* * Search for the error_handler module. */ - ep = erts_find_function(erts_proc_get_error_handler(p), func, 3); + ep = erts_find_function(erts_proc_get_error_handler(p), func, 3, + erts_active_code_ix()); if (ep == NULL) { /* No error handler */ p->current = fi; p->freason = EXC_UNDEF; @@ -5941,10 +5920,9 @@ call_error_handler(Process* p, BeamInstr* fi, Eterm* reg, Eterm func) reg[0] = fi[0]; reg[1] = fi[1]; reg[2] = args; - return ep->address; + return ep->addressv[erts_active_code_ix()]; } - static Export* apply_setup_error_handler(Process* p, Eterm module, Eterm function, Uint arity, Eterm* reg) { @@ -5955,7 +5933,7 @@ apply_setup_error_handler(Process* p, Eterm module, Eterm function, Uint arity, * there is no error handler module. */ - if ((ep = erts_find_export_entry(erts_proc_get_error_handler(p), + if ((ep = erts_active_export_entry(erts_proc_get_error_handler(p), am_undefined_function, 3)) == NULL) { return NULL; } else { @@ -6062,7 +6040,7 @@ apply(Process* p, Eterm module, Eterm function, Eterm args, Eterm* reg) * Note: All BIFs have export entries; thus, no special case is needed. */ - if ((ep = erts_find_export_entry(module, function, arity)) == NULL) { + if ((ep = erts_active_export_entry(module, function, arity)) == NULL) { if ((ep = apply_setup_error_handler(p, module, function, arity, reg)) == NULL) goto error; } else if (ERTS_PROC_GET_SAVED_CALLS_BUF(p)) { save_calls(p, ep); @@ -6070,11 +6048,11 @@ apply(Process* p, Eterm module, Eterm function, Eterm args, Eterm* reg) #ifdef USE_VM_CALL_PROBES if (DTRACE_ENABLED(global_function_entry)) { - BeamInstr *fptr = (BeamInstr *) ep->address; + BeamInstr *fptr = (BeamInstr *) ep->addressv[erts_active_code_ix()]; DTRACE_GLOBAL_CALL(p, (Eterm)fptr[-3], (Eterm)fptr[-2], (Uint)fptr[-1]); } #endif - return ep->address; + return ep->addressv[erts_active_code_ix()]; } static BeamInstr* @@ -6116,7 +6094,7 @@ fixed_apply(Process* p, Eterm* reg, Uint arity) * Note: All BIFs have export entries; thus, no special case is needed. */ - if ((ep = erts_find_export_entry(module, function, arity)) == NULL) { + if ((ep = erts_active_export_entry(module, function, arity)) == NULL) { if ((ep = apply_setup_error_handler(p, module, function, arity, reg)) == NULL) goto error; } else if (ERTS_PROC_GET_SAVED_CALLS_BUF(p)) { @@ -6125,11 +6103,11 @@ fixed_apply(Process* p, Eterm* reg, Uint arity) #ifdef USE_VM_CALL_PROBES if (DTRACE_ENABLED(global_function_entry)) { - BeamInstr *fptr = (BeamInstr *) ep->address; + BeamInstr *fptr = (BeamInstr *) ep->addressv[erts_active_code_ix()]; DTRACE_GLOBAL_CALL(p, (Eterm)fptr[-3], (Eterm)fptr[-2], (Uint)fptr[-1]); } #endif - return ep->address; + return ep->addressv[erts_active_code_ix()]; } int @@ -6206,9 +6184,7 @@ erts_hibernate(Process* c_p, Eterm module, Eterm function, Eterm args, Eterm* re */ erts_smp_proc_lock(c_p, ERTS_PROC_LOCK_MSGQ|ERTS_PROC_LOCK_STATUS); ERTS_SMP_MSGQ_MV_INQ2PRIVQ(c_p); - if (c_p->msg.len > 0) { - erts_add_to_runq(c_p); - } else { + if (!c_p->msg.len) { erts_smp_proc_unlock(c_p, ERTS_PROC_LOCK_MSGQ|ERTS_PROC_LOCK_STATUS); c_p->fvalue = NIL; PROCESS_MAIN_CHK_LOCKS(c_p); @@ -6216,14 +6192,12 @@ erts_hibernate(Process* c_p, Eterm module, Eterm function, Eterm args, Eterm* re ERTS_VERIFY_UNUSED_TEMP_ALLOC(c_p); PROCESS_MAIN_CHK_LOCKS(c_p); erts_smp_proc_lock(c_p, ERTS_PROC_LOCK_MSGQ|ERTS_PROC_LOCK_STATUS); - ASSERT(!ERTS_PROC_IS_EXITING(c_p)); #ifdef ERTS_SMP ERTS_SMP_MSGQ_MV_INQ2PRIVQ(c_p); - if (c_p->msg.len > 0) - erts_add_to_runq(c_p); - else + if (!c_p->msg.len) #endif - c_p->status = P_WAITING; + erts_smp_atomic32_read_band_relb(&c_p->state, ~ERTS_PSFLG_ACTIVE); + ASSERT(!ERTS_PROC_IS_EXITING(c_p)); } erts_smp_proc_unlock(c_p, ERTS_PROC_LOCK_MSGQ|ERTS_PROC_LOCK_STATUS); c_p->current = bif_export[BIF_hibernate_3]->code; @@ -6240,7 +6214,6 @@ call_fun(Process* p, /* Current process. */ Eterm fun = reg[arity]; Eterm hdr; int i; - Eterm function; Eterm* hp; if (!is_boxed(fun)) { @@ -6311,7 +6284,7 @@ call_fun(Process* p, /* Current process. */ Export* ep; Module* modp; Eterm module; - + ErtsCodeIndex code_ix = erts_active_code_ix(); /* * No arity. There is no module loaded that defines the fun, @@ -6319,9 +6292,9 @@ call_fun(Process* p, /* Current process. */ * representation (the module has never been loaded), * or the module defining the fun has been unloaded. */ - module = fe->module; - if ((modp = erts_get_module(module)) != NULL && modp->code != NULL) { + if ((modp = erts_get_module(module, code_ix)) != NULL + && modp->curr.code != NULL) { /* * There is a module loaded, but obviously the fun is not * defined in it. We must not call the error_handler @@ -6336,7 +6309,7 @@ call_fun(Process* p, /* Current process. */ */ ep = erts_find_function(erts_proc_get_error_handler(p), - am_undefined_lambda, 3); + am_undefined_lambda, 3, code_ix); if (ep == NULL) { /* No error handler */ p->current = NULL; p->freason = EXC_UNDEF; @@ -6346,7 +6319,7 @@ call_fun(Process* p, /* Current process. */ reg[1] = fun; reg[2] = args; reg[3] = NIL; - return ep->address; + return ep->addressv[erts_active_code_ix()]; } } } else if (is_export_header(hdr)) { @@ -6358,7 +6331,7 @@ call_fun(Process* p, /* Current process. */ if (arity == actual_arity) { DTRACE_GLOBAL_CALL(p, ep->code[0], ep->code[1], (Uint)ep->code[2]); - return ep->address; + return ep->addressv[erts_active_code_ix()]; } else { /* * Wrong arity. First build a list of the arguments. @@ -6378,63 +6351,6 @@ call_fun(Process* p, /* Current process. */ p->fvalue = TUPLE2(hp, fun, args); return NULL; } - } else if (hdr == make_arityval(2)) { - Eterm* tp; - Export* ep; - Eterm module; - - tp = tuple_val(fun); - module = tp[1]; - function = tp[2]; - if (!is_atom(module) || !is_atom(function)) { - goto badfun; - } - - /* - * If this is the first time a tuple fun is used, - * send a warning to the logger. - */ - if (erts_smp_atomic_xchg_nob(&warned_for_tuple_funs, - (erts_aint_t) 1) == 0) { - erts_dsprintf_buf_t* dsbufp; - - dsbufp = erts_create_logger_dsbuf(); - erts_dsprintf(dsbufp, "Call to tuple fun {%T,%T}.\n\n" - "Tuple funs are deprecated and will be removed " - "in R16. Use \"fun M:F/A\" instead, for example " - "\"fun %T:%T/%d\".\n\n" - "(This warning will only be shown the first time " - "a tuple fun is called.)\n", - module, function, module, function, arity); - erts_send_warning_to_logger(p->group_leader, dsbufp); - } - - if ((ep = erts_find_export_entry(module, function, arity)) == NULL) { - ep = erts_find_export_entry(erts_proc_get_error_handler(p), - am_undefined_function, 3); - if (ep == NULL) { - p->freason = EXC_UNDEF; - return 0; - } - if (is_non_value(args)) { - Uint sz = 2 * arity; - if (HeapWordsLeft(p) < sz) { - erts_garbage_collect(p, sz, reg, arity); - } - hp = HEAP_TOP(p); - HEAP_TOP(p) += sz; - args = NIL; - while (arity-- > 0) { - args = CONS(hp, reg[arity], args); - hp += 2; - } - } - reg[0] = module; - reg[1] = function; - reg[2] = args; - } - DTRACE_GLOBAL_CALL(p, module, function, arity); - return ep->address; } else { badfun: p->current = NULL; @@ -6476,6 +6392,7 @@ apply_fun(Process* p, Eterm fun, Eterm args, Eterm* reg) } + static Eterm new_fun(Process* p, Eterm* reg, ErlFunEntry* fe, int num_free) { @@ -6500,7 +6417,7 @@ new_fun(Process* p, Eterm* reg, ErlFunEntry* fe, int num_free) MSO(p).first = (struct erl_off_heap_header*) funp; funp->fe = fe; funp->num_free = num_free; - funp->creator = p->id; + funp->creator = p->common.id; #ifdef HIPE funp->native_address = fe->native_address; #endif @@ -6511,7 +6428,397 @@ new_fun(Process* p, Eterm* reg, ErlFunEntry* fe, int num_free) return make_fun(funp); } - +static int has_not_map_field(Eterm map, Eterm key) +{ + map_t* mp; + Eterm* keys; + Uint i; + Uint n; + + mp = (map_t *)map_val(map); + keys = map_get_keys(mp); + n = map_get_size(mp); + if (is_immed(key)) { + for (i = 0; i < n; i++) { + if (keys[i] == key) { + return 0; + } + } + } else { + for (i = 0; i < n; i++) { + if (EQ(keys[i], key)) { + return 0; + } + } + } + return 1; +} + +static Eterm get_map_element(Eterm map, Eterm key) +{ + map_t *mp; + Eterm* ks, *vs; + Uint i; + Uint n; + + mp = (map_t *)map_val(map); + ks = map_get_keys(mp); + vs = map_get_values(mp); + n = map_get_size(mp); + if (is_immed(key)) { + for (i = 0; i < n; i++) { + if (ks[i] == key) { + return vs[i]; + } + } + } else { + for (i = 0; i < n; i++) { + if (EQ(ks[i], key)) { + return vs[i]; + } + } + } + return THE_NON_VALUE; +} + +#define GET_TERM(term, dest) \ +do { \ + Eterm src = (Eterm)(term); \ + switch (src & _TAG_IMMED1_MASK) { \ + case (R_REG_DEF << _TAG_PRIMARY_SIZE) | TAG_PRIMARY_HEADER: \ + dest = x(0); \ + break; \ + case (X_REG_DEF << _TAG_PRIMARY_SIZE) | TAG_PRIMARY_HEADER: \ + dest = x(src >> _TAG_IMMED1_SIZE); \ + break; \ + case (Y_REG_DEF << _TAG_PRIMARY_SIZE) | TAG_PRIMARY_HEADER: \ + dest = y(src >> _TAG_IMMED1_SIZE); \ + break; \ + default: \ + dest = src; \ + break; \ + } \ +} while(0) + + +static Eterm +new_map(Process* p, Eterm* reg, BeamInstr* I) +{ + Uint n = Arg(3); + Uint i; + Uint need = n + 1 /* hdr */ + 1 /*size*/ + 1 /* ptr */ + 1 /* arity */; + Eterm keys; + Eterm *mhp,*thp; + Eterm *E; + BeamInstr *ptr; + map_t *mp; + + if (HeapWordsLeft(p) < need) { + erts_garbage_collect(p, need, reg, Arg(2)); + } + + thp = p->htop; + mhp = thp + 1 + n/2; + E = p->stop; + ptr = &Arg(4); + keys = make_tuple(thp); + *thp++ = make_arityval(n/2); + + mp = (map_t *)mhp; mhp += MAP_HEADER_SIZE; + mp->thing_word = MAP_HEADER; + mp->size = n/2; + mp->keys = keys; + + for (i = 0; i < n/2; i++) { + GET_TERM(*ptr++, *thp++); + GET_TERM(*ptr++, *mhp++); + } + p->htop = mhp; + return make_map(mp); +} + +static Eterm +update_map_assoc(Process* p, Eterm* reg, Eterm map, BeamInstr* I) +{ + Uint n; + Uint num_old; + Uint num_updates; + Uint need; + map_t *old_mp, *mp; + Eterm res; + Eterm* hp; + Eterm* E; + Eterm* old_keys; + Eterm* old_vals; + BeamInstr* new_p; + Eterm new_key; + Eterm* kp; + + if (is_not_map(map)) { + return THE_NON_VALUE; + } + + old_mp = (map_t *) map_val(map); + num_old = map_get_size(old_mp); + + /* + * If the old map is empty, create a new map. + */ + + if (num_old == 0) { + return new_map(p, reg, I+1); + } + + /* + * Allocate heap space for the worst case (i.e. all keys in the + * update list are new). + */ + + num_updates = Arg(4) / 2; + need = 2*(num_old+num_updates) + 1 + MAP_HEADER_SIZE; + if (HeapWordsLeft(p) < need) { + Uint live = Arg(3); + reg[live] = map; + erts_garbage_collect(p, need, reg, live+1); + map = reg[live]; + old_mp = (map_t *)map_val(map); + } + + /* + * Build the skeleton for the map, ready to be filled in. + * + * +-----------------------------------+ + * | (Space for aritvyal for keys) | <-----------+ + * +-----------------------------------+ | + * | (Space for key 1) | | <-- kp + * +-----------------------------------+ | + * . | + * . | + * . | + * +-----------------------------------+ | + * | (Space for last key) | | + * +-----------------------------------+ | + * | MAP_HEADER | | + * +-----------------------------------+ | + * | (Space for number of keys/values) | | + * +-----------------------------------+ | + * | Boxed tuple pointer >----------------+ + * +-----------------------------------+ + * | (Space for value 1) | <-- hp + * +-----------------------------------+ + */ + + E = p->stop; + kp = p->htop + 1; /* Point to first key */ + hp = kp + num_old + num_updates; + + res = make_map(hp); + mp = (map_t *)hp; + hp += MAP_HEADER_SIZE; + mp->thing_word = MAP_HEADER; + mp->keys = make_tuple(kp-1); + + old_vals = map_get_values(old_mp); + old_keys = map_get_keys(old_mp); + + new_p = &Arg(5); + GET_TERM(*new_p, new_key); + n = num_updates; + + /* + * Fill in keys and values, until we run out of either updates + * or old values and keys. + */ + + for (;;) { + Eterm key; + Sint c; + + ASSERT(kp < (Eterm *)mp); + key = *old_keys; + if ((c = CMP_TERM(key, new_key)) < 0) { + /* Copy old key and value */ + *kp++ = key; + *hp++ = *old_vals; + old_keys++, old_vals++, num_old--; + } else { /* Replace or insert new */ + GET_TERM(new_p[1], *hp++); + if (c > 0) { /* If new new key */ + *kp++ = new_key; + } else { /* If replacement */ + *kp++ = key; + old_keys++, old_vals++, num_old--; + } + n--; + if (n == 0) { + break; + } else { + new_p += 2; + GET_TERM(*new_p, new_key); + } + } + if (num_old == 0) { + break; + } + } + + /* + * At this point, we have run out of either old keys and values, + * or the update list. In other words, at least of one n and + * num_old must be zero. + */ + + if (n > 0) { + /* + * All old keys and values have been copied, but there + * are still new keys and values in the update list that + * must be copied. + */ + ASSERT(num_old == 0); + while (n-- > 0) { + GET_TERM(new_p[0], *kp++); + GET_TERM(new_p[1], *hp++); + new_p += 2; + } + } else { + /* + * All updates are now done. We may still have old + * keys and values that we must copy. + */ + ASSERT(n == 0); + while (num_old-- > 0) { + ASSERT(kp < (Eterm *)mp); + *kp++ = *old_keys++; + *hp++ = *old_vals++; + } + } + + /* + * Calculate how many values that are unused at the end of the + * key tuple and fill it out with a bignum header. + */ + if ((n = (Eterm *)mp - kp) > 0) { + *kp = make_pos_bignum_header(n-1); + } + + /* + * Fill in the size of the map in both the key tuple and in the map. + */ + + n = kp - p->htop - 1; /* Actual number of keys/values */ + *p->htop = make_arityval(n); + mp->size = n; + p->htop = hp; + return res; +} + +/* + * Update values for keys that already exist in the map. + */ + +static Eterm +update_map_exact(Process* p, Eterm* reg, Eterm map, BeamInstr* I) +{ + Uint n; + Uint i; + Uint num_old; + Uint need; + map_t *old_mp, *mp; + Eterm res; + Eterm* hp; + Eterm* E; + Eterm* old_keys; + Eterm* old_vals; + BeamInstr* new_p; + Eterm new_key; + + if (is_not_map(map)) { + return THE_NON_VALUE; + } + + old_mp = (map_t *) map_val(map); + num_old = map_get_size(old_mp); + + /* + * If the old map is empty, create a new map. + */ + + if (num_old == 0) { + return THE_NON_VALUE; + } + + /* + * Allocate the exact heap space needed. + */ + + need = num_old + MAP_HEADER_SIZE; + if (HeapWordsLeft(p) < need) { + Uint live = Arg(3); + reg[live] = map; + erts_garbage_collect(p, need, reg, live+1); + map = reg[live]; + old_mp = (map_t *)map_val(map); + } + + /* + * Update map, keeping the old key tuple. + */ + + hp = p->htop; + E = p->stop; + + old_vals = map_get_values(old_mp); + old_keys = map_get_keys(old_mp); + + res = make_map(hp); + mp = (map_t *)hp; + hp += MAP_HEADER_SIZE; + mp->thing_word = MAP_HEADER; + mp->size = num_old; + mp->keys = old_mp->keys; + + /* Get array of key/value pairs to be updated */ + new_p = &Arg(5); + GET_TERM(*new_p, new_key); + + /* Update all values */ + n = Arg(4) / 2; /* Number of values to be updated */ + ASSERT(n > 0); + for (i = 0; i < num_old; i++) { + if (!EQ(*old_keys, new_key)) { + /* Not same keys */ + *hp++ = *old_vals; + } else { + GET_TERM(new_p[1], *hp); + hp++; + n--; + if (n == 0) { + /* + * All updates done. Copy remaining values + * and return the result. + */ + for (i++, old_vals++; i < num_old; i++) { + *hp++ = *old_vals++; + } + ASSERT(hp == p->htop + need); + p->htop = hp; + return res; + } else { + new_p += 2; + GET_TERM(*new_p, new_key); + } + } + old_vals++, old_keys++; + } + + /* + * Updates left. That means that at least one the keys in the + * update list did not previously exist. + */ + ASSERT(hp == p->htop + need); + return THE_NON_VALUE; +} +#undef GET_TERM int catchlevel(Process *p) { @@ -6537,7 +6844,8 @@ erts_is_builtin(Eterm Mod, Eterm Name, int arity) if ((ep = export_get(&e)) == NULL) { return 0; } - return ep->address == ep->code+3 && (ep->code[3] == (BeamInstr) em_apply_bif); + return ep->addressv[erts_active_code_ix()] == ep->code+3 + && (ep->code[3] == (BeamInstr) em_apply_bif); } @@ -6558,3 +6866,12 @@ erts_current_reductions(Process *current, Process *p) } } +int +erts_beam_jump_table(void) +{ +#if defined(NO_JUMP_TABLE) + return 0; +#else + return 1; +#endif +} diff --git a/erts/emulator/beam/beam_load.c b/erts/emulator/beam/beam_load.c index dd788df6e4..e96177cfd9 100644 --- a/erts/emulator/beam/beam_load.c +++ b/erts/emulator/beam/beam_load.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 1996-2011. All Rights Reserved. + * Copyright Ericsson AB 1996-2014. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -205,7 +205,7 @@ typedef struct { typedef struct { Eterm term; /* The tagged term (in the heap). */ Uint heap_size; /* (Exact) size on the heap. */ - Uint offset; /* Offset from temporary location to final. */ + SWord offset; /* Offset from temporary location to final. */ ErlOffHeap off_heap; /* Start of linked list of ProcBins. */ Eterm* heap; /* Heap for term. */ } Literal; @@ -352,27 +352,6 @@ typedef struct LoaderState { int loc_size; /* Size of location info in bytes (2/4) */ } LoaderState; -/* - * Layout of the line table. - */ - -#define MI_LINE_FNAME_PTR 0 -#define MI_LINE_LOC_TAB 1 -#define MI_LINE_LOC_SIZE 2 -#define MI_LINE_FUNC_TAB 3 - -#define LINE_INVALID_LOCATION (0) - -/* - * Macros for manipulating locations. - */ - -#define IS_VALID_LOCATION(File, Line) \ - ((unsigned) (File) < 255 && (unsigned) (Line) < ((1 << 24) - 1)) -#define MAKE_LOCATION(File, Line) (((File) << 24) | (Line)) -#define LOC_FILE(Loc) ((Loc) >> 24) -#define LOC_LINE(Loc) ((Loc) & ((1 << 24)-1)) - #define GetTagAndValue(Stp, Tag, Val) \ do { \ BeamInstr __w; \ @@ -430,7 +409,7 @@ typedef struct LoaderState { __result = __result << 8 | *Stp->file_p++; \ } \ Dest = __result; \ - } while (0) + } #define GetByte(Stp, Dest) \ if ((Stp)->file_left < 1) { \ @@ -496,7 +475,8 @@ typedef struct LoaderState { } while (0) -static void free_state(LoaderState* stp); +static void free_loader_state(Binary* magic); +static void loader_state_dtor(Binary* magic); static Eterm insert_new_code(Process *c_p, ErtsProcLocks c_p_locks, Eterm group_leader, Eterm module, BeamInstr* code, Uint size); @@ -507,6 +487,7 @@ static int verify_chunks(LoaderState* stp); static int load_atom_table(LoaderState* stp); static int load_import_table(LoaderState* stp); static int read_export_table(LoaderState* stp); +static int is_bif(Eterm mod, Eterm func, unsigned arity); static int read_lambda_table(LoaderState* stp); static int read_literal_table(LoaderState* stp); static int read_line_table(LoaderState* stp); @@ -525,6 +506,9 @@ static GenOp* gen_select_literals(LoaderState* stp, GenOpArg S, static GenOp* const_select_val(LoaderState* stp, GenOpArg S, GenOpArg Fail, GenOpArg Size, GenOpArg* Rest); +static GenOp* gen_get_map_element(LoaderState* stp, GenOpArg Fail, GenOpArg Src, + GenOpArg Size, GenOpArg* Rest); + static int freeze_code(LoaderState* stp); static void final_touch(LoaderState* stp); @@ -548,26 +532,12 @@ static Eterm native_addresses(Process* p, Eterm mod); int patch_funentries(Eterm Patchlist); int patch(Eterm Addresses, Uint fe); static int safe_mul(UWord a, UWord b, UWord* resp); -static void lookup_loc(FunctionInfo* fi, BeamInstr* pc, - BeamInstr* modp, int idx); - static int must_swap_floats; -/* - * The following variables keep a sorted list of address ranges for - * each module. It allows us to quickly find a function given an - * instruction pointer. - */ -Range* modules = NULL; /* Sorted lists of module addresses. */ -int num_loaded_modules; /* Number of loaded modules. */ -int allocated_modules; /* Number of slots allocated. */ -Range* mid_module = NULL; /* Cached search start point */ - Uint erts_total_code_size; /**********************************************************************/ - void init_load(void) { FloatDef f; @@ -579,11 +549,7 @@ void init_load(void) f.fd = 1.0; must_swap_floats = (f.fw[0] == 0); - allocated_modules = 128; - modules = (Range *) erts_alloc(ERTS_ALC_T_MODULE_REFS, - allocated_modules*sizeof(Range)); - mid_module = modules; - num_loaded_modules = 0; + erts_init_ranges(); } static void @@ -595,7 +561,7 @@ define_file(LoaderState* stp, char* name, int idx) } Eterm -erts_load_module(Process *c_p, +erts_preload_module(Process *c_p, ErtsProcLocks c_p_locks, Eterm group_leader, /* Group leader or NIL if none. */ Eterm* modp, /* @@ -605,15 +571,16 @@ erts_load_module(Process *c_p, byte* code, /* Points to the code to load */ Uint size) /* Size of code to load. */ { - LoaderState* stp = erts_alloc_loader_state(); + Binary* magic = erts_alloc_loader_state(); Eterm retval; - retval = erts_prepare_loading(stp, c_p, group_leader, modp, + ASSERT(!erts_initialized); + retval = erts_prepare_loading(magic, c_p, group_leader, modp, code, size); if (retval != NIL) { return retval; } - return erts_finish_loading(stp, c_p, c_p_locks, modp); + return erts_finish_loading(magic, c_p, c_p_locks, modp); } /* #define LOAD_MEMORY_HARD_DEBUG 1*/ @@ -629,11 +596,13 @@ extern void check_allocated_block(Uint type, void *blk); #endif Eterm -erts_prepare_loading(LoaderState* stp, Process *c_p, Eterm group_leader, +erts_prepare_loading(Binary* magic, Process *c_p, Eterm group_leader, Eterm* modp, byte* code, Uint unloaded_size) { Eterm retval = am_badfile; + LoaderState* stp; + stp = ERTS_MAGIC_BIN_DATA(magic); stp->module = *modp; stp->group_leader = group_leader; @@ -666,7 +635,7 @@ erts_prepare_loading(LoaderState* stp, Process *c_p, Eterm group_leader, /* * Initialize code area. */ - stp->code_buffer_size = erts_next_heap_size(2048 + stp->num_functions, 0); + stp->code_buffer_size = 2048 + stp->num_functions; stp->code = (BeamInstr *) erts_alloc(ERTS_ALC_T_CODE, sizeof(BeamInstr) * stp->code_buffer_size); @@ -679,8 +648,6 @@ erts_prepare_loading(LoaderState* stp, Process *c_p, Eterm group_leader, stp->code[MI_COMPILE_PTR] = 0; stp->code[MI_COMPILE_SIZE] = 0; stp->code[MI_COMPILE_SIZE_ON_HEAP] = 0; - stp->code[MI_NUM_BREAKPOINTS] = 0; - /* * Read the atom table. @@ -774,23 +741,24 @@ erts_prepare_loading(LoaderState* stp, Process *c_p, Eterm group_leader, load_error: if (retval != NIL) { - free_state(stp); + free_loader_state(magic); } return retval; } Eterm -erts_finish_loading(LoaderState* stp, Process* c_p, +erts_finish_loading(Binary* magic, Process* c_p, ErtsProcLocks c_p_locks, Eterm* modp) { Eterm retval; + LoaderState* stp = ERTS_MAGIC_BIN_DATA(magic); /* * No other process may run since we will update the export * table which is not protected by any locks. */ - ERTS_SMP_LC_ASSERT(erts_initialized == 0 || + ERTS_SMP_LC_ASSERT(erts_initialized == 0 || erts_has_code_write_permission() || erts_smp_thr_progress_is_blocking()); /* @@ -811,7 +779,6 @@ erts_finish_loading(LoaderState* stp, Process* c_p, * exported and imported functions. This can't fail. */ - erts_export_consolidate(); CHKBLK(ERTS_ALC_T_CODE,stp->code); final_touch(stp); @@ -837,16 +804,20 @@ erts_finish_loading(LoaderState* stp, Process* c_p, } load_error: - free_state(stp); + free_loader_state(magic); return retval; } -LoaderState* +Binary* erts_alloc_loader_state(void) { LoaderState* stp; + Binary* magic; - stp = erts_alloc(ERTS_ALC_T_LOADER_TMP, sizeof(LoaderState)); + magic = erts_create_magic_binary(sizeof(LoaderState), + loader_state_dtor); + erts_refc_inc(&magic->refc, 1); + stp = ERTS_MAGIC_BIN_DATA(magic); stp->bin = NULL; stp->function = THE_NON_VALUE; /* Function not known yet */ stp->arity = 0; @@ -875,76 +846,123 @@ erts_alloc_loader_state(void) stp->line_instr = 0; stp->func_line = 0; stp->fname = 0; - return stp; + return magic; } +/* + * Return the module name (a tagged atom) for the prepared code + * in the magic binary, or NIL if the binary does not contain + * prepared code. + */ +Eterm +erts_module_for_prepared_code(Binary* magic) +{ + LoaderState* stp; + + if (ERTS_MAGIC_BIN_DESTRUCTOR(magic) != loader_state_dtor) { + return NIL; + } + stp = ERTS_MAGIC_BIN_DATA(magic); + if (stp->code != 0) { + return stp->module; + } else { + return NIL; + } +} + +static void +free_loader_state(Binary* magic) +{ + loader_state_dtor(magic); + if (erts_refc_dectest(&magic->refc, 0) == 0) { + erts_bin_free(magic); + } +} + +/* + * This destructor function can safely be called multiple times. + */ static void -free_state(LoaderState* stp) +loader_state_dtor(Binary* magic) { + LoaderState* stp = ERTS_MAGIC_BIN_DATA(magic); + if (stp->bin != 0) { driver_free_binary(stp->bin); + stp->bin = 0; } if (stp->code != 0) { erts_free(ERTS_ALC_T_CODE, stp->code); + stp->code = 0; } - if (stp->labels != NULL) { - erts_free(ERTS_ALC_T_LOADER_TMP, (void *) stp->labels); + if (stp->labels != 0) { + erts_free(ERTS_ALC_T_PREPARED_CODE, (void *) stp->labels); + stp->labels = 0; } - if (stp->atom != NULL) { - erts_free(ERTS_ALC_T_LOADER_TMP, (void *) stp->atom); + if (stp->atom != 0) { + erts_free(ERTS_ALC_T_PREPARED_CODE, (void *) stp->atom); + stp->atom = 0; } - if (stp->import != NULL) { - erts_free(ERTS_ALC_T_LOADER_TMP, (void *) stp->import); + if (stp->import != 0) { + erts_free(ERTS_ALC_T_PREPARED_CODE, (void *) stp->import); + stp->import = 0; } - if (stp->export != NULL) { - erts_free(ERTS_ALC_T_LOADER_TMP, (void *) stp->export); + if (stp->export != 0) { + erts_free(ERTS_ALC_T_PREPARED_CODE, (void *) stp->export); + stp->export = 0; } if (stp->lambdas != stp->def_lambdas) { - erts_free(ERTS_ALC_T_LOADER_TMP, (void *) stp->lambdas); + erts_free(ERTS_ALC_T_PREPARED_CODE, (void *) stp->lambdas); + stp->lambdas = stp->def_lambdas; } - if (stp->literals != NULL) { + if (stp->literals != 0) { int i; for (i = 0; i < stp->num_literals; i++) { - if (stp->literals[i].heap != NULL) { - erts_free(ERTS_ALC_T_LOADER_TMP, + if (stp->literals[i].heap != 0) { + erts_free(ERTS_ALC_T_PREPARED_CODE, (void *) stp->literals[i].heap); + stp->literals[i].heap = 0; } } - erts_free(ERTS_ALC_T_LOADER_TMP, (void *) stp->literals); + erts_free(ERTS_ALC_T_PREPARED_CODE, (void *) stp->literals); + stp->literals = 0; } - while (stp->literal_patches != NULL) { + while (stp->literal_patches != 0) { LiteralPatch* next = stp->literal_patches->next; - erts_free(ERTS_ALC_T_LOADER_TMP, (void *) stp->literal_patches); + erts_free(ERTS_ALC_T_PREPARED_CODE, (void *) stp->literal_patches); stp->literal_patches = next; } - while (stp->string_patches != NULL) { + while (stp->string_patches != 0) { StringPatch* next = stp->string_patches->next; - erts_free(ERTS_ALC_T_LOADER_TMP, (void *) stp->string_patches); + erts_free(ERTS_ALC_T_PREPARED_CODE, (void *) stp->string_patches); stp->string_patches = next; } - while (stp->genop_blocks) { - GenOpBlock* next = stp->genop_blocks->next; - erts_free(ERTS_ALC_T_LOADER_TMP, (void *) stp->genop_blocks); - stp->genop_blocks = next; - } if (stp->line_item != 0) { - erts_free(ERTS_ALC_T_LOADER_TMP, stp->line_item); + erts_free(ERTS_ALC_T_PREPARED_CODE, stp->line_item); + stp->line_item = 0; } if (stp->line_instr != 0) { - erts_free(ERTS_ALC_T_LOADER_TMP, stp->line_instr); + erts_free(ERTS_ALC_T_PREPARED_CODE, stp->line_instr); + stp->line_instr = 0; } if (stp->func_line != 0) { - erts_free(ERTS_ALC_T_LOADER_TMP, stp->func_line); + erts_free(ERTS_ALC_T_PREPARED_CODE, stp->func_line); + stp->func_line = 0; } if (stp->fname != 0) { - erts_free(ERTS_ALC_T_LOADER_TMP, stp->fname); + erts_free(ERTS_ALC_T_PREPARED_CODE, stp->fname); + stp->fname = 0; } - erts_free(ERTS_ALC_T_LOADER_TMP, stp); + /* + * The following data items should have been freed earlier. + */ + + ASSERT(stp->genop_blocks == 0); } static Eterm @@ -954,7 +972,6 @@ insert_new_code(Process *c_p, ErtsProcLocks c_p_locks, { Module* modp; Eterm retval; - int i; if ((retval = beam_make_current_old(c_p, c_p_locks, module)) != NIL) { erts_dsprintf_buf_t *dsbufp = erts_create_logger_dsbuf(); @@ -971,30 +988,15 @@ insert_new_code(Process *c_p, ErtsProcLocks c_p_locks, erts_total_code_size += size; modp = erts_put_module(module); - modp->code = code; - modp->code_length = size; - modp->catches = BEAM_CATCHES_NIL; /* Will be filled in later. */ + modp->curr.code = code; + modp->curr.code_length = size; + modp->curr.catches = BEAM_CATCHES_NIL; /* Will be filled in later. */ /* - * Update address table (used for finding a function from a PC value). + * Update ranges (used for finding a function from a PC value). */ - if (num_loaded_modules == allocated_modules) { - allocated_modules *= 2; - modules = (Range *) erts_realloc(ERTS_ALC_T_MODULE_REFS, - (void *) modules, - allocated_modules * sizeof(Range)); - } - for (i = num_loaded_modules; i > 0; i--) { - if (code > modules[i-1].start) { - break; - } - modules[i] = modules[i-1]; - } - modules[i].start = code; - modules[i].end = (BeamInstr *) (((byte *)code) + size); - num_loaded_modules++; - mid_module = &modules[num_loaded_modules/2]; + erts_update_ranges(code, size); return NIL; } @@ -1209,7 +1211,6 @@ verify_chunks(LoaderState* stp) return 0; } - static int load_atom_table(LoaderState* stp) { @@ -1217,9 +1218,8 @@ load_atom_table(LoaderState* stp) GetInt(stp, 4, stp->num_atoms); stp->num_atoms++; - stp->atom = erts_alloc(ERTS_ALC_T_LOADER_TMP, - erts_next_heap_size((stp->num_atoms*sizeof(Eterm)), - 0)); + stp->atom = erts_alloc(ERTS_ALC_T_PREPARED_CODE, + stp->num_atoms*sizeof(Eterm)); /* * Read all atoms. @@ -1231,7 +1231,7 @@ load_atom_table(LoaderState* stp) GetByte(stp, n); GetString(stp, atom, n); - stp->atom[i] = am_atom_put((char*)atom, n); + stp->atom[i] = erts_atom_put(atom, n, ERTS_ATOM_ENC_LATIN1, 1); } /* @@ -1241,7 +1241,7 @@ load_atom_table(LoaderState* stp) if (is_nil(stp->module)) { stp->module = stp->atom[1]; } else if (stp->atom[1] != stp->module) { - char sbuf[256]; + char sbuf[MAX_ATOM_SZ_FROM_LATIN1]; Atom* ap; ap = atom_tab(atom_val(stp->atom[1])); @@ -1256,17 +1256,14 @@ load_atom_table(LoaderState* stp) return 0; } - static int load_import_table(LoaderState* stp) { int i; GetInt(stp, 4, stp->num_imports); - stp->import = erts_alloc(ERTS_ALC_T_LOADER_TMP, - erts_next_heap_size((stp->num_imports * - sizeof(ImportEntry)), - 0)); + stp->import = erts_alloc(ERTS_ALC_T_PREPARED_CODE, + stp->num_imports * sizeof(ImportEntry)); for (i = 0; i < stp->num_imports; i++) { int n; Eterm mod; @@ -1296,7 +1293,7 @@ load_import_table(LoaderState* stp) * If the export entry refers to a BIF, get the pointer to * the BIF function. */ - if ((e = erts_find_export_entry(mod, func, arity)) != NULL) { + if ((e = erts_active_export_entry(mod, func, arity)) != NULL) { if (e->code[3] == (BeamInstr) em_apply_bif) { stp->import[i].bf = (BifFunction) e->code[4]; if (func == am_load_nif && mod == am_erlang && arity == 2) { @@ -1311,20 +1308,11 @@ load_import_table(LoaderState* stp) return 0; } - static int read_export_table(LoaderState* stp) { - static struct { - Eterm mod; - Eterm func; - int arity; - } allow_redef[] = { - /* The BIFs that are allowed to be redefined by Erlang code */ - {am_erlang,am_apply,2}, - {am_erlang,am_apply,3}, - }; int i; + BeamInstr* address; GetInt(stp, 4, stp->num_exps); if (stp->num_exps > stp->num_functions) { @@ -1332,7 +1320,7 @@ read_export_table(LoaderState* stp) stp->num_exps, stp->num_functions); } stp->export - = (ExportEntry *) erts_alloc(ERTS_ALC_T_LOADER_TMP, + = (ExportEntry *) erts_alloc(ERTS_ALC_T_PREPARED_CODE, (stp->num_exps * sizeof(ExportEntry))); for (i = 0; i < stp->num_exps; i++) { @@ -1340,7 +1328,6 @@ read_export_table(LoaderState* stp) Uint value; Eterm func; Uint arity; - Export* e; GetInt(stp, 4, n); GetAtom(stp, n, func); @@ -1358,29 +1345,34 @@ read_export_table(LoaderState* stp) if (value == 0) { LoadError2(stp, "export table entry %d: label %d not resolved", i, n); } - stp->export[i].address = stp->code + value; + stp->export[i].address = address = stp->code + value; /* - * Check that we are not redefining a BIF (except the ones allowed to - * redefine). + * Find out if there is a BIF with the same name. */ - if ((e = erts_find_export_entry(stp->module, func, arity)) != NULL) { - if (e->code[3] == (BeamInstr) em_apply_bif) { - int j; - for (j = 0; j < sizeof(allow_redef)/sizeof(allow_redef[0]); j++) { - if (stp->module == allow_redef[j].mod && - func == allow_redef[j].func && - arity == allow_redef[j].arity) { - break; - } - } - if (j == sizeof(allow_redef)/sizeof(allow_redef[0])) { - LoadError2(stp, "exported function %T/%d redefines BIF", - func, arity); - } - } + if (!is_bif(stp->module, func, arity)) { + continue; + } + + /* + * This is a stub for a BIF. + * + * It should not be exported, and the information in its + * func_info instruction should be invalidated so that it + * can be filtered out by module_info(functions) and by + * any other functions that walk through all local functions. + */ + + if (stp->labels[n].patches) { + LoadError3(stp, "there are local calls to the stub for " + "the BIF %T:%T/%d", + stp->module, func, arity); } + stp->export[i].address = NULL; + address[-1] = 0; + address[-2] = NIL; + address[-3] = NIL; } return 1; @@ -1388,15 +1380,39 @@ read_export_table(LoaderState* stp) return 0; } + +static int +is_bif(Eterm mod, Eterm func, unsigned arity) +{ + Export* e = erts_active_export_entry(mod, func, arity); + if (e == NULL) { + return 0; + } + if (e->code[3] != (BeamInstr) em_apply_bif) { + return 0; + } + if (mod == am_erlang && func == am_apply && arity == 3) { + /* + * erlang:apply/3 is a special case -- it is implemented + * as an instruction and it is OK to redefine it. + */ + return 0; + } + return 1; +} + static int read_lambda_table(LoaderState* stp) { int i; GetInt(stp, 4, stp->num_lambdas); - stp->lambdas_allocated = stp->num_lambdas; - stp->lambdas = (Lambda *) erts_alloc(ERTS_ALC_T_LOADER_TMP, - stp->num_lambdas * sizeof(Lambda)); + if (stp->num_lambdas > stp->lambdas_allocated) { + ASSERT(stp->lambdas == stp->def_lambdas); + stp->lambdas_allocated = stp->num_lambdas; + stp->lambdas = (Lambda *) erts_alloc(ERTS_ALC_T_PREPARED_CODE, + stp->num_lambdas * sizeof(Lambda)); + } for (i = 0; i < stp->num_lambdas; i++) { Uint n; Uint32 Index; @@ -1446,7 +1462,7 @@ read_literal_table(LoaderState* stp) stp->file_p = uncompressed; stp->file_left = (unsigned) uncompressed_sz; GetInt(stp, 4, stp->num_literals); - stp->literals = (Literal *) erts_alloc(ERTS_ALC_T_LOADER_TMP, + stp->literals = (Literal *) erts_alloc(ERTS_ALC_T_PREPARED_CODE, stp->num_literals * sizeof(Literal)); stp->allocated_literals = stp->num_literals; @@ -1466,7 +1482,7 @@ read_literal_table(LoaderState* stp) if ((heap_size = erts_decode_ext_size(p, sz)) < 0) { LoadError1(stp, "literal %d: bad external format", i); } - hp = stp->literals[i].heap = erts_alloc(ERTS_ALC_T_LOADER_TMP, + hp = stp->literals[i].heap = erts_alloc(ERTS_ALC_T_PREPARED_CODE, heap_size*sizeof(Eterm)); stp->literals[i].off_heap.first = 0; stp->literals[i].off_heap.overhead = 0; @@ -1538,7 +1554,7 @@ read_line_table(LoaderState* stp) */ num_line_items++; - lp = (BeamInstr *) erts_alloc(ERTS_ALC_T_LOADER_TMP, + lp = (BeamInstr *) erts_alloc(ERTS_ALC_T_PREPARED_CODE, num_line_items * sizeof(BeamInstr)); stp->line_item = lp; stp->num_line_items = num_line_items; @@ -1594,7 +1610,7 @@ read_line_table(LoaderState* stp) */ if (stp->num_fnames != 0) { - stp->fname = (Eterm *) erts_alloc(ERTS_ALC_T_LOADER_TMP, + stp->fname = (Eterm *) erts_alloc(ERTS_ALC_T_PREPARED_CODE, stp->num_fnames * sizeof(Eterm)); for (i = 0; i < stp->num_fnames; i++) { @@ -1603,18 +1619,18 @@ read_line_table(LoaderState* stp) GetInt(stp, 2, n); GetString(stp, fname, n); - stp->fname[i] = am_atom_put((char*)fname, n); + stp->fname[i] = erts_atom_put(fname, n, ERTS_ATOM_ENC_LATIN1, 1); } } /* * Allocate the arrays to be filled while code is being loaded. */ - stp->line_instr = (LineInstr *) erts_alloc(ERTS_ALC_T_LOADER_TMP, + stp->line_instr = (LineInstr *) erts_alloc(ERTS_ALC_T_PREPARED_CODE, stp->num_line_instrs * sizeof(LineInstr)); stp->current_li = 0; - stp->func_line = (int *) erts_alloc(ERTS_ALC_T_LOADER_TMP, + stp->func_line = (int *) erts_alloc(ERTS_ALC_T_PREPARED_CODE, stp->num_functions * sizeof(int)); @@ -1624,7 +1640,6 @@ read_line_table(LoaderState* stp) return 0; } - static int read_code_header(LoaderState* stp) { @@ -1677,7 +1692,7 @@ read_code_header(LoaderState* stp) * Initialize label table. */ - stp->labels = (Label *) erts_alloc(ERTS_ALC_T_LOADER_TMP, + stp->labels = (Label *) erts_alloc(ERTS_ALC_T_PREPARED_CODE, stp->num_labels * sizeof(Label)); for (i = 0; i < stp->num_labels; i++) { stp->labels[i].value = 0; @@ -1694,7 +1709,6 @@ read_code_header(LoaderState* stp) return 0; } - #define VerifyTag(Stp, Actual, Expected) \ if (Actual != Expected) { \ LoadError2(Stp, "bad tag %d; expected %d", Actual, Expected); \ @@ -1703,9 +1717,9 @@ read_code_header(LoaderState* stp) #define CodeNeed(w) do { \ ASSERT(ci <= code_buffer_size); \ if (code_buffer_size < ci+(w)) { \ - code_buffer_size = erts_next_heap_size(ci+(w), 0); \ - stp->code = code \ - = (BeamInstr *) erts_realloc(ERTS_ALC_T_CODE, \ + code_buffer_size = 2*ci+(w); \ + stp->code = code = \ + (BeamInstr *) erts_realloc(ERTS_ALC_T_CODE, \ (void *) code, \ code_buffer_size * sizeof(BeamInstr)); \ } \ @@ -1713,7 +1727,6 @@ read_code_header(LoaderState* stp) #define TermWords(t) (((t) / (sizeof(BeamInstr)/sizeof(Eterm))) + !!((t) % (sizeof(BeamInstr)/sizeof(Eterm)))) - static int load_code(LoaderState* stp) { @@ -1731,6 +1744,7 @@ load_code(LoaderState* stp) GenOp* last_op = NULL; GenOp** last_op_next = NULL; int arity; + int retval = 1; /* * The size of the loaded func_info instruction is needed @@ -1835,7 +1849,10 @@ load_code(LoaderState* stp) unsigned tag; switch (last_op->a[arg].val) { - case 0: /* Floating point number */ + case 0: + /* Floating point number. + * Not generated by the compiler in R16B and later. + */ { Eterm* hp; /* XXX:PaN - Halfword should use ARCH_64 variant instead */ @@ -2457,7 +2474,11 @@ load_code(LoaderState* stp) case op_int_code_end: stp->code_buffer_size = code_buffer_size; stp->ci = ci; - return 1; + stp->function = THE_NON_VALUE; + stp->genop = NULL; + stp->specific_op = -1; + retval = 1; + goto cleanup; } /* @@ -2471,12 +2492,22 @@ load_code(LoaderState* stp) } } - load_error: - return 0; + retval = 0; + + cleanup: + /* + * Clean up everything that is not needed any longer. + */ + + while (stp->genop_blocks) { + GenOpBlock* next = stp->genop_blocks->next; + erts_free(ERTS_ALC_T_LOADER_TMP, (void *) stp->genop_blocks); + stp->genop_blocks = next; + } + return retval; } - #define succ(St, X, Y) ((X).type == (Y).type && (X).val + 1 == (Y).val) #define succ2(St, X, Y) ((X).type == (Y).type && (X).val + 2 == (Y).val) #define succ3(St, X, Y) ((X).type == (Y).type && (X).val + 3 == (Y).val) @@ -2928,19 +2959,19 @@ gen_put_integer(LoaderState* stp, GenOpArg Fail, GenOpArg Size, NEW_GENOP(stp, op); NATIVE_ENDIAN(Flags); - if (Size.type == TAG_i && Size.val < 0) { - error: /* Negative size must fail */ - op->op = genop_badarg_1; - op->arity = 1; - op->a[0] = Fail; - } else if (Size.type == TAG_i) { + if (Size.type == TAG_i) { op->op = genop_i_new_bs_put_integer_imm_4; op->arity = 4; op->a[0] = Fail; op->a[1].type = TAG_u; if (!safe_mul(Size.val, Unit.val, &op->a[1].val)) { - goto error; + error: + op->op = genop_badarg_1; + op->arity = 1; + op->a[0] = Fail; + op->next = NULL; + return op; } op->a[1].val = Size.val * Unit.val; op->a[2].type = Flags.type; @@ -3755,6 +3786,8 @@ gen_guard_bif1(LoaderState* stp, GenOpArg Fail, GenOpArg Live, GenOpArg Bif, op->a[1].val = (BeamInstr) (void *) erts_gc_bit_size_1; } else if (bf == byte_size_1) { op->a[1].val = (BeamInstr) (void *) erts_gc_byte_size_1; + } else if (bf == map_size_1) { + op->a[1].val = (BeamInstr) (void *) erts_gc_map_size_1; } else if (bf == abs_1) { op->a[1].val = (BeamInstr) (void *) erts_gc_abs_1; } else if (bf == float_1) { @@ -3921,8 +3954,50 @@ tuple_append_put(LoaderState* stp, GenOpArg Arity, GenOpArg Dst, return op; } +/* + * Replace a get_map_elements with one key to an instruction with one + * element + */ + +static GenOp* +gen_get_map_element(LoaderState* stp, GenOpArg Fail, GenOpArg Src, + GenOpArg Size, GenOpArg* Rest) +{ + GenOp* op; + + ASSERT(Size.type == TAG_u); + + NEW_GENOP(stp, op); + op->next = NULL; + op->op = genop_get_map_element_4; + op->arity = 4; + + op->a[0] = Fail; + op->a[1] = Src; + op->a[2] = Rest[0]; + op->a[3] = Rest[1]; + return op; +} + +static GenOp* +gen_has_map_field(LoaderState* stp, GenOpArg Fail, GenOpArg Src, + GenOpArg Size, GenOpArg* Rest) +{ + GenOp* op; + + ASSERT(Size.type == TAG_u); + + NEW_GENOP(stp, op); + op->next = NULL; + op->op = genop_has_map_field_3; + op->arity = 4; + + op->a[0] = Fail; + op->a[1] = Src; + op->a[2] = Rest[0]; + return op; +} - /* * Freeze the code in memory, move the string table into place, * resolve all labels. @@ -4009,7 +4084,7 @@ freeze_code(LoaderState* stp) code[MI_LITERALS_END] = (BeamInstr) high; ptr = low; for (i = 0; i < stp->num_literals; i++) { - Uint offset; + SWord offset; struct erl_off_heap_header* t_off_heap; sys_memcpy(ptr, stp->literals[i].heap, @@ -4240,7 +4315,6 @@ freeze_code(LoaderState* stp) return 0; } - static void final_touch(LoaderState* stp) { @@ -4265,24 +4339,31 @@ final_touch(LoaderState* stp) index = next; } modp = erts_put_module(stp->module); - modp->catches = catches; + modp->curr.catches = catches; /* * Export functions. */ for (i = 0; i < stp->num_exps; i++) { - Export* ep = erts_export_put(stp->module, stp->export[i].function, - stp->export[i].arity); + Export* ep; + BeamInstr* address = stp->export[i].address; + + if (address == NULL) { + /* Skip stub for a BIF */ + continue; + } + ep = erts_export_put(stp->module, stp->export[i].function, + stp->export[i].arity); if (!on_load) { - ep->address = stp->export[i].address; + ep->addressv[erts_staging_code_ix()] = address; } else { /* * Don't make any of the exported functions * callable yet. */ - ep->address = ep->code+3; - ep->code[4] = (BeamInstr) stp->export[i].address; + ep->addressv[erts_staging_code_ix()] = ep->code+3; + ep->code[4] = (BeamInstr) address; } } @@ -4335,7 +4416,6 @@ final_touch(LoaderState* stp) } } - static int transform_engine(LoaderState* st) { @@ -4344,6 +4424,7 @@ transform_engine(LoaderState* st) Uint* restart; /* Where to restart if current match fails. */ GenOpArg def_vars[TE_MAX_VARS]; /* Default buffer for variables. */ GenOpArg* var = def_vars; + int num_vars = 0; int i; /* General index. */ Uint mask; GenOp* instr; @@ -4546,9 +4627,9 @@ transform_engine(LoaderState* st) { int n = *pc++; int formal_arity = gen_opc[instr->op].arity; - int num_vars = n + (instr->arity - formal_arity); int j = formal_arity; + num_vars = n + (instr->arity - formal_arity); var = erts_alloc(ERTS_ALC_T_LOADER_TMP, num_vars * sizeof(GenOpArg)); for (i = 0; i < n; i++) { @@ -4560,7 +4641,6 @@ transform_engine(LoaderState* st) } break; #endif - case TOP_next_arg: ap++; break; @@ -4648,6 +4728,20 @@ transform_engine(LoaderState* st) instr->a[ap].val = var[i].val; ap++; break; +#if defined(TOP_store_rest_args) + case TOP_store_rest_args: + { + int n = *pc++; + int num_extra = num_vars - n; + + ASSERT(n <= num_vars); + GENOP_ARITY(instr, instr->arity+num_extra); + memcpy(instr->a, instr->def_args, ap*sizeof(GenOpArg)); + memcpy(instr->a+ap, var+n, num_extra*sizeof(GenOpArg)); + ap += num_extra; + } + break; +#endif case TOP_try_me_else: restart = pc + 1; restart += *pc++; @@ -4673,7 +4767,6 @@ transform_engine(LoaderState* st) return rval; } - static void short_file(int line, LoaderState* stp, unsigned needed) { @@ -4681,7 +4774,6 @@ short_file(int line, LoaderState* stp, unsigned needed) stp->file_name, needed); } - static void load_printf(int line, LoaderState* context, char *fmt,...) { @@ -4926,7 +5018,7 @@ new_label(LoaderState* stp) int num = stp->num_labels; stp->num_labels++; - stp->labels = (Label *) erts_realloc(ERTS_ALC_T_LOADER_TMP, + stp->labels = (Label *) erts_realloc(ERTS_ALC_T_PREPARED_CODE, (void *) stp->labels, stp->num_labels * sizeof(Label)); stp->labels[num].value = 0; @@ -4937,7 +5029,8 @@ new_label(LoaderState* stp) static void new_literal_patch(LoaderState* stp, int pos) { - LiteralPatch* p = erts_alloc(ERTS_ALC_T_LOADER_TMP, sizeof(LiteralPatch)); + LiteralPatch* p = erts_alloc(ERTS_ALC_T_PREPARED_CODE, + sizeof(LiteralPatch)); p->pos = pos; p->next = stp->literal_patches; stp->literal_patches = p; @@ -4946,7 +5039,7 @@ new_literal_patch(LoaderState* stp, int pos) static void new_string_patch(LoaderState* stp, int pos) { - StringPatch* p = erts_alloc(ERTS_ALC_T_LOADER_TMP, sizeof(StringPatch)); + StringPatch* p = erts_alloc(ERTS_ALC_T_PREPARED_CODE, sizeof(StringPatch)); p->pos = pos; p->next = stp->string_patches; stp->string_patches = p; @@ -4964,14 +5057,14 @@ new_literal(LoaderState* stp, Eterm** hpp, Uint heap_size) ASSERT(stp->num_literals == 0); stp->allocated_literals = 8; need = stp->allocated_literals * sizeof(Literal); - stp->literals = (Literal *) erts_alloc(ERTS_ALC_T_LOADER_TMP, + stp->literals = (Literal *) erts_alloc(ERTS_ALC_T_PREPARED_CODE, need); } else if (stp->allocated_literals <= stp->num_literals) { Uint need; stp->allocated_literals *= 2; need = stp->allocated_literals * sizeof(Literal); - stp->literals = (Literal *) erts_realloc(ERTS_ALC_T_LOADER_TMP, + stp->literals = (Literal *) erts_realloc(ERTS_ALC_T_PREPARED_CODE, (void *) stp->literals, need); } @@ -4980,7 +5073,7 @@ new_literal(LoaderState* stp, Eterm** hpp, Uint heap_size) lit = stp->literals + stp->num_literals; lit->offset = 0; lit->heap_size = heap_size; - lit->heap = erts_alloc(ERTS_ALC_T_LOADER_TMP, heap_size*sizeof(Eterm)); + lit->heap = erts_alloc(ERTS_ALC_T_PREPARED_CODE, heap_size*sizeof(Eterm)); lit->term = make_boxed(lit->heap); lit->off_heap.first = 0; lit->off_heap.overhead = 0; @@ -4999,7 +5092,7 @@ erts_module_info_0(Process* p, Eterm module) return THE_NON_VALUE; } - if (erts_get_module(module) == NULL) { + if (erts_get_module(module, erts_active_code_ix()) == NULL) { return THE_NON_VALUE; } @@ -5054,32 +5147,43 @@ functions_in_module(Process* p, /* Process whose heap to use. */ BeamInstr* code; int i; Uint num_functions; + Uint need; Eterm* hp; + Eterm* hp_end; Eterm result = NIL; if (is_not_atom(mod)) { return THE_NON_VALUE; } - modp = erts_get_module(mod); + modp = erts_get_module(mod, erts_active_code_ix()); if (modp == NULL) { return THE_NON_VALUE; } - code = modp->code; + code = modp->curr.code; num_functions = code[MI_NUM_FUNCTIONS]; - hp = HAlloc(p, 5*num_functions); + need = 5*num_functions; + hp = HAlloc(p, need); + hp_end = hp + need; for (i = num_functions-1; i >= 0 ; i--) { BeamInstr* func_info = (BeamInstr *) code[MI_FUNCTIONS+i]; Eterm name = (Eterm) func_info[3]; int arity = (int) func_info[4]; Eterm tuple; - ASSERT(is_atom(name)); - tuple = TUPLE2(hp, name, make_small(arity)); - hp += 3; - result = CONS(hp, tuple, result); - hp += 2; + /* + * If the function name is [], this entry is a stub for + * a BIF that should be ignored. + */ + ASSERT(is_atom(name) || is_nil(name)); + if (is_atom(name)) { + tuple = TUPLE2(hp, name, make_small(arity)); + hp += 3; + result = CONS(hp, tuple, result); + hp += 2; + } } + HRelease(p, hp_end, hp); return result; } @@ -5106,12 +5210,12 @@ native_addresses(Process* p, Eterm mod) return THE_NON_VALUE; } - modp = erts_get_module(mod); + modp = erts_get_module(mod, erts_active_code_ix()); if (modp == NULL) { return THE_NON_VALUE; } - code = modp->code; + code = modp->curr.code; num_functions = code[MI_NUM_FUNCTIONS]; need = (6+BIG_UINT_HEAP_SIZE)*num_functions; hp = HAlloc(p, need); @@ -5122,9 +5226,11 @@ native_addresses(Process* p, Eterm mod) int arity = (int) func_info[4]; Eterm tuple; - ASSERT(is_atom(name)); + ASSERT(is_atom(name) || is_nil(name)); /* [] if BIF stub */ if (func_info[1] != 0) { - Eterm addr = erts_bld_uint(&hp, NULL, func_info[1]); + Eterm addr; + ASSERT(is_atom(name)); + addr = erts_bld_uint(&hp, NULL, func_info[1]); tuple = erts_bld_tuple(&hp, NULL, 3, name, make_small(arity), addr); result = erts_bld_cons(&hp, NULL, tuple, result); } @@ -5133,7 +5239,6 @@ native_addresses(Process* p, Eterm mod) return result; } - /* * Builds a list of all exported functions in the given module: * [{Name, Arity},...] @@ -5149,18 +5254,20 @@ exported_from_module(Process* p, /* Process whose heap to use. */ Eterm* hp = NULL; Eterm* hend = NULL; Eterm result = NIL; + ErtsCodeIndex code_ix; if (is_not_atom(mod)) { return THE_NON_VALUE; } - for (i = 0; i < export_list_size(); i++) { - Export* ep = export_list(i); + code_ix = erts_active_code_ix(); + for (i = 0; i < export_list_size(code_ix); i++) { + Export* ep = export_list(i,code_ix); if (ep->code[0] == mod) { Eterm tuple; - if (ep->address == ep->code+3 && + if (ep->addressv[code_ix] == ep->code+3 && ep->code[3] == (BeamInstr) em_call_error_handler) { /* There is a call to the function, but it does not exist. */ continue; @@ -5181,7 +5288,6 @@ exported_from_module(Process* p, /* Process whose heap to use. */ return result; } - /* * Returns a list of all attributes for the module. * @@ -5204,11 +5310,11 @@ attributes_for_module(Process* p, /* Process whose heap to use. */ return THE_NON_VALUE; } - modp = erts_get_module(mod); + modp = erts_get_module(mod, erts_active_code_ix()); if (modp == NULL) { return THE_NON_VALUE; } - code = modp->code; + code = modp->curr.code; ext = (byte *) code[MI_ATTR_PTR]; if (ext != NULL) { hp = HAlloc(p, code[MI_ATTR_SIZE_ON_HEAP]); @@ -5222,7 +5328,6 @@ attributes_for_module(Process* p, /* Process whose heap to use. */ return result; } - /* * Returns a list containing compilation information. * @@ -5244,11 +5349,11 @@ compilation_info_for_module(Process* p, /* Process whose heap to use. */ return THE_NON_VALUE; } - modp = erts_get_module(mod); + modp = erts_get_module(mod, erts_active_code_ix()); if (modp == NULL) { return THE_NON_VALUE; } - code = modp->code; + code = modp->curr.code; ext = (byte *) code[MI_COMPILE_PTR]; if (ext != NULL) { hp = HAlloc(p, code[MI_COMPILE_SIZE_ON_HEAP]); @@ -5263,113 +5368,6 @@ compilation_info_for_module(Process* p, /* Process whose heap to use. */ } /* - * Find a function from the given pc and fill information in - * the FunctionInfo struct. If the full_info is non-zero, fill - * in all available information (including location in the - * source code). If no function is found, the 'current' field - * will be set to NULL. - */ - -void -erts_lookup_function_info(FunctionInfo* fi, BeamInstr* pc, int full_info) -{ - Range* low = modules; - Range* high = low + num_loaded_modules; - Range* mid = mid_module; - - fi->current = NULL; - fi->needed = 5; - fi->loc = LINE_INVALID_LOCATION; - while (low < high) { - if (pc < mid->start) { - high = mid; - } else if (pc > mid->end) { - low = mid + 1; - } else { - BeamInstr** low1 = (BeamInstr **) (mid->start + MI_FUNCTIONS); - BeamInstr** high1 = low1 + mid->start[MI_NUM_FUNCTIONS]; - BeamInstr** mid1; - - while (low1 < high1) { - mid1 = low1 + (high1-low1) / 2; - if (pc < mid1[0]) { - high1 = mid1; - } else if (pc < mid1[1]) { - mid_module = mid; - fi->current = mid1[0]+2; - if (full_info) { - BeamInstr** fp = (BeamInstr **) (mid->start + - MI_FUNCTIONS); - int idx = mid1 - fp; - lookup_loc(fi, pc, mid->start, idx); - } - return; - } else { - low1 = mid1 + 1; - } - } - return; - } - mid = low + (high-low) / 2; - } -} - -static void -lookup_loc(FunctionInfo* fi, BeamInstr* orig_pc, BeamInstr* modp, int idx) -{ - Eterm* line = (Eterm *) modp[MI_LINE_TABLE]; - Eterm* low; - Eterm* high; - Eterm* mid; - Eterm pc; - - if (line == 0) { - return; - } - - pc = (Eterm) (BeamInstr) orig_pc; - fi->fname_ptr = (Eterm *) (BeamInstr) line[MI_LINE_FNAME_PTR]; - low = (Eterm *) (BeamInstr) line[MI_LINE_FUNC_TAB+idx]; - high = (Eterm *) (BeamInstr) line[MI_LINE_FUNC_TAB+idx+1]; - while (high > low) { - mid = low + (high-low) / 2; - if (pc < mid[0]) { - high = mid; - } else if (pc < mid[1]) { - int file; - int index = mid - (Eterm *) (BeamInstr) line[MI_LINE_FUNC_TAB]; - - if (line[MI_LINE_LOC_SIZE] == 2) { - Uint16* loc_table = - (Uint16 *) (BeamInstr) line[MI_LINE_LOC_TAB]; - fi->loc = loc_table[index]; - } else { - Uint32* loc_table = - (Uint32 *) (BeamInstr) line[MI_LINE_LOC_TAB]; - ASSERT(line[MI_LINE_LOC_SIZE] == 4); - fi->loc = loc_table[index]; - } - if (fi->loc == LINE_INVALID_LOCATION) { - return; - } - fi->needed += 3+2+3+2; - file = LOC_FILE(fi->loc); - if (file == 0) { - /* Special case: Module name with ".erl" appended */ - Atom* mod_atom = atom_tab(atom_val(fi->current[0])); - fi->needed += 2*(mod_atom->len+4); - } else { - Atom* ap = atom_tab(atom_val((fi->fname_ptr)[file-1])); - fi->needed += 2*ap->len; - } - return; - } else { - low = mid + 1; - } - } -} - -/* * Build a single {M,F,A,Loction} item to be part of * a stack trace. */ @@ -5449,6 +5447,7 @@ code_get_chunk_2(BIF_ALIST_2) Process* p = BIF_P; Eterm Bin = BIF_ARG_1; Eterm Chunk = BIF_ARG_2; + Binary* magic = 0; LoaderState* stp; Uint chunk = 0; ErlSubBin* sb; @@ -5461,12 +5460,13 @@ code_get_chunk_2(BIF_ALIST_2) Eterm real_bin; byte* temp_alloc = NULL; - stp = erts_alloc_loader_state(); + magic = erts_alloc_loader_state(); + stp = ERTS_MAGIC_BIN_DATA(magic); if ((start = erts_get_aligned_binary_bytes(Bin, &temp_alloc)) == NULL) { error: erts_free_aligned_binary_bytes(temp_alloc); - if (stp) { - free_state(stp); + if (magic) { + free_loader_state(magic); } BIF_ERROR(p, BADARG); } @@ -5511,7 +5511,7 @@ code_get_chunk_2(BIF_ALIST_2) done: erts_free_aligned_binary_bytes(temp_alloc); - free_state(stp); + free_loader_state(magic); return res; } @@ -5524,14 +5524,16 @@ code_module_md5_1(BIF_ALIST_1) { Process* p = BIF_P; Eterm Bin = BIF_ARG_1; + Binary* magic; LoaderState* stp; byte* bytes; byte* temp_alloc = NULL; Eterm res; - stp = erts_alloc_loader_state(); + magic = erts_alloc_loader_state(); + stp = ERTS_MAGIC_BIN_DATA(magic); if ((bytes = erts_get_aligned_binary_bytes(Bin, &temp_alloc)) == NULL) { - free_state(stp); + free_loader_state(magic); BIF_ERROR(p, BADARG); } stp->module = THE_NON_VALUE; /* Suppress diagnostiscs */ @@ -5545,7 +5547,7 @@ code_module_md5_1(BIF_ALIST_1) done: erts_free_aligned_binary_bytes(temp_alloc); - free_state(stp); + free_loader_state(magic); return res; } @@ -5574,7 +5576,8 @@ stub_copy_info(LoaderState* stp, int chunk, /* Chunk: ATTR_CHUNK or COMPILE_CHUNK */ byte* info, /* Where to store info. */ BeamInstr* ptr_word, /* Where to store pointer into info. */ - BeamInstr* size_word) /* Where to store size of info. */ + BeamInstr* size_word, /* Where to store size into info. */ + BeamInstr* size_on_heap_word) /* Where to store size on heap. */ { Sint decoded_size; Uint size = stp->chunks[chunk].size; @@ -5585,7 +5588,8 @@ stub_copy_info(LoaderState* stp, if (decoded_size < 0) { return 0; } - *size_word = decoded_size; + *size_word = (BeamInstr) size; + *size_on_heap_word = decoded_size; } return info + size; } @@ -5601,7 +5605,7 @@ stub_read_export_table(LoaderState* stp) stp->num_exps, stp->num_functions); } stp->export - = (ExportEntry *) erts_alloc(ERTS_ALC_T_LOADER_TMP, + = (ExportEntry *) erts_alloc(ERTS_ALC_T_PREPARED_CODE, stp->num_exps * sizeof(ExportEntry)); for (i = 0; i < stp->num_exps; i++) { @@ -5627,20 +5631,29 @@ stub_final_touch(LoaderState* stp, BeamInstr* fp) { int i; int n = stp->num_exps; + Eterm mod = fp[2]; Eterm function = fp[3]; int arity = fp[4]; #ifdef HIPE Lambda* lp; #endif + if (is_bif(mod, function, arity)) { + fp[1] = 0; + fp[2] = 0; + fp[3] = 0; + fp[4] = 0; + return; + } + /* * Test if the function should be exported. */ for (i = 0; i < n; i++) { if (stp->export[i].function == function && stp->export[i].arity == arity) { - Export* ep = erts_export_put(fp[2], function, arity); - ep->address = fp+5; + Export* ep = erts_export_put(mod, function, arity); + ep->addressv[erts_staging_code_ix()] = fp+5; return; } } @@ -5819,6 +5832,7 @@ patch_funentries(Eterm Patchlist) Eterm erts_make_stub_module(Process* p, Eterm Mod, Eterm Beam, Eterm Info) { + Binary* magic; LoaderState* stp; BeamInstr Funcs; BeamInstr Patchlist; @@ -5840,7 +5854,8 @@ erts_make_stub_module(Process* p, Eterm Mod, Eterm Beam, Eterm Info) * Must initialize stp->lambdas here because the error handling code * at label 'error' uses it. */ - stp = erts_alloc_loader_state(); + magic = erts_alloc_loader_state(); + stp = ERTS_MAGIC_BIN_DATA(magic); if (is_not_atom(Mod)) { goto error; @@ -5855,7 +5870,7 @@ erts_make_stub_module(Process* p, Eterm Mod, Eterm Beam, Eterm Info) Funcs = tp[1]; Patchlist = tp[2]; - if ((n = list_length(Funcs)) < 0) { + if ((n = erts_list_length(Funcs)) < 0) { goto error; } if ((bytes = erts_get_aligned_binary_bytes(Beam, &temp_alloc)) == NULL) { @@ -5920,7 +5935,6 @@ erts_make_stub_module(Process* p, Eterm Mod, Eterm Beam, Eterm Info) code[MI_COMPILE_PTR] = 0; code[MI_COMPILE_SIZE] = 0; code[MI_COMPILE_SIZE_ON_HEAP] = 0; - code[MI_NUM_BREAKPOINTS] = 0; code[MI_LITERALS_START] = 0; code[MI_LITERALS_END] = 0; code[MI_LITERALS_OFF_HEAP] = 0; @@ -5939,7 +5953,7 @@ erts_make_stub_module(Process* p, Eterm Mod, Eterm Beam, Eterm Info) Eterm* tp; Eterm func; Eterm arity_term; - Uint arity; + Sint arity; Uint native_address; Eterm op; @@ -5997,12 +6011,16 @@ erts_make_stub_module(Process* p, Eterm Mod, Eterm Beam, Eterm Info) info = (byte *) fp; info = stub_copy_info(stp, ATTR_CHUNK, info, - code+MI_ATTR_PTR, code+MI_ATTR_SIZE_ON_HEAP); + code+MI_ATTR_PTR, + code+MI_ATTR_SIZE, + code+MI_ATTR_SIZE_ON_HEAP); if (info == NULL) { goto error; } info = stub_copy_info(stp, COMPILE_CHUNK, info, - code+MI_COMPILE_PTR, code+MI_COMPILE_SIZE_ON_HEAP); + code+MI_COMPILE_PTR, + code+MI_COMPILE_SIZE, + code+MI_COMPILE_SIZE_ON_HEAP); if (info == NULL) { goto error; } @@ -6028,13 +6046,13 @@ erts_make_stub_module(Process* p, Eterm Mod, Eterm Beam, Eterm Info) if (patch_funentries(Patchlist)) { erts_free_aligned_binary_bytes(temp_alloc); - free_state(stp); + free_loader_state(magic); return Mod; } error: erts_free_aligned_binary_bytes(temp_alloc); - free_state(stp); + free_loader_state(magic); BIF_ERROR(p, BADARG); } @@ -6051,3 +6069,4 @@ static int safe_mul(UWord a, UWord b, UWord* resp) return (res / b) == a; } } + diff --git a/erts/emulator/beam/beam_load.h b/erts/emulator/beam/beam_load.h index 997ba197db..bd22b0c4de 100644 --- a/erts/emulator/beam/beam_load.h +++ b/erts/emulator/beam/beam_load.h @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 1999-2011. All Rights Reserved. + * Copyright Ericsson AB 1999-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -49,11 +49,7 @@ extern void** beam_ops; extern BeamInstr beam_debug_apply[]; extern BeamInstr* em_call_error_handler; extern BeamInstr* em_apply_bif; -extern BeamInstr* em_call_traced_function; -typedef struct { - BeamInstr* start; /* Pointer to start of module. */ - BeamInstr* end; /* Points one word beyond last function in module. */ -} Range; +extern BeamInstr* em_call_nif; /* * The following variables keep a sorted list of address ranges for @@ -61,11 +57,6 @@ typedef struct { * instruction pointer. */ -extern Range* modules; -extern int num_loaded_modules; -extern int allocated_modules; -extern Range* mid_module; - /* Total code size in bytes */ extern Uint erts_total_code_size; /* @@ -94,27 +85,22 @@ extern Uint erts_total_code_size; #define MI_COMPILE_SIZE_ON_HEAP 6 /* - * Number of breakpoints in module is stored in this word - */ -#define MI_NUM_BREAKPOINTS 7 - -/* * Literal area (constant pool). */ -#define MI_LITERALS_START 8 -#define MI_LITERALS_END 9 -#define MI_LITERALS_OFF_HEAP 10 +#define MI_LITERALS_START 7 +#define MI_LITERALS_END 8 +#define MI_LITERALS_OFF_HEAP 9 /* * Pointer to the on_load function (or NULL if none). */ -#define MI_ON_LOAD_FUNCTION_PTR 11 +#define MI_ON_LOAD_FUNCTION_PTR 10 /* * Pointer to the line table (or NULL if none). */ -#define MI_LINE_TABLE 12 +#define MI_LINE_TABLE 11 /* * Start of function pointer table. This table contains pointers to @@ -125,5 +111,27 @@ extern Uint erts_total_code_size; * this table. */ -#define MI_FUNCTIONS 13 +#define MI_FUNCTIONS 12 + +/* + * Layout of the line table. + */ + +#define MI_LINE_FNAME_PTR 0 +#define MI_LINE_LOC_TAB 1 +#define MI_LINE_LOC_SIZE 2 +#define MI_LINE_FUNC_TAB 3 + +#define LINE_INVALID_LOCATION (0) + +/* + * Macros for manipulating locations. + */ + +#define IS_VALID_LOCATION(File, Line) \ + ((unsigned) (File) < 255 && (unsigned) (Line) < ((1 << 24) - 1)) +#define MAKE_LOCATION(File, Line) (((File) << 24) | (Line)) +#define LOC_FILE(Loc) ((Loc) >> 24) +#define LOC_LINE(Loc) ((Loc) & ((1 << 24)-1)) + #endif /* _BEAM_LOAD_H */ diff --git a/erts/emulator/beam/beam_ranges.c b/erts/emulator/beam/beam_ranges.c new file mode 100644 index 0000000000..0f2d5d0c2a --- /dev/null +++ b/erts/emulator/beam/beam_ranges.c @@ -0,0 +1,349 @@ +/* + * %CopyrightBegin% + * + * Copyright Ericsson AB 2012. All Rights Reserved. + * + * The contents of this file are subject to the Erlang Public License, + * Version 1.1, (the "License"); you may not use this file except in + * compliance with the License. You should have received a copy of the + * Erlang Public License along with this software. If not, it can be + * retrieved online at http://www.erlang.org/. + * + * Software distributed under the License is distributed on an "AS IS" + * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See + * the License for the specific language governing rights and limitations + * under the License. + * + * %CopyrightEnd% + */ + +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif + +#include "sys.h" +#include "erl_vm.h" +#include "global.h" +#include "beam_load.h" + +typedef struct { + BeamInstr* start; /* Pointer to start of module. */ + erts_smp_atomic_t end; /* (BeamInstr*) Points one word beyond last function in module. */ +} Range; + +/* Range 'end' needs to be atomic as we purge module + by setting end=start in active code_ix */ +#define RANGE_END(R) ((BeamInstr*)erts_smp_atomic_read_nob(&(R)->end)) + +static Range* find_range(BeamInstr* pc); +static void lookup_loc(FunctionInfo* fi, BeamInstr* pc, + BeamInstr* modp, int idx); + +/* + * The following variables keep a sorted list of address ranges for + * each module. It allows us to quickly find a function given an + * instruction pointer. + */ +struct ranges { + Range* modules; /* Sorted lists of module addresses. */ + Sint n; /* Number of range entries. */ + Sint allocated; /* Number of allocated entries. */ + erts_smp_atomic_t mid; /* Cached search start point */ +}; +static struct ranges r[ERTS_NUM_CODE_IX]; +static erts_smp_atomic_t mem_used; + +#ifdef HARD_DEBUG +static void check_consistency(struct ranges* p) +{ + int i; + + ASSERT(p->n <= p->allocated); + ASSERT((Uint)(p->mid - p->modules) < p->n || + (p->mid == p->modules && p->n == 0)); + for (i = 0; i < p->n; i++) { + ASSERT(p->modules[i].start <= RANGE_END(&p->modules[i])); + ASSERT(!i || RANGE_END(&p->modules[i-1]) < p->modules[i].start); + } +} +# define CHECK(r) check_consistency(r) +#else +# define CHECK(r) +#endif /* HARD_DEBUG */ + + +void +erts_init_ranges(void) +{ + Sint i; + + erts_smp_atomic_init_nob(&mem_used, 0); + for (i = 0; i < ERTS_NUM_CODE_IX; i++) { + r[i].modules = 0; + r[i].n = 0; + r[i].allocated = 0; + erts_smp_atomic_init_nob(&r[i].mid, 0); + } +} + +void +erts_start_staging_ranges(void) +{ + ErtsCodeIndex dst = erts_staging_code_ix(); + + if (r[dst].modules) { + erts_smp_atomic_add_nob(&mem_used, -r[dst].allocated); + erts_free(ERTS_ALC_T_MODULE_REFS, r[dst].modules); + r[dst].modules = NULL; + } +} + +void +erts_end_staging_ranges(int commit) +{ + ErtsCodeIndex dst = erts_staging_code_ix(); + + if (commit && r[dst].modules == NULL) { + Sint i; + Sint n; + + /* No modules added, just clone src and remove purged code. */ + ErtsCodeIndex src = erts_active_code_ix(); + + erts_smp_atomic_add_nob(&mem_used, r[src].n); + r[dst].modules = erts_alloc(ERTS_ALC_T_MODULE_REFS, + r[src].n * sizeof(Range)); + r[dst].allocated = r[src].n; + n = 0; + for (i = 0; i < r[src].n; i++) { + Range* rp = r[src].modules+i; + if (rp->start < RANGE_END(rp)) { + /* Only insert a module that has not been purged. */ + r[dst].modules[n] = *rp; + n++; + } + } + r[dst].n = n; + erts_smp_atomic_set_nob(&r[dst].mid, + (erts_aint_t) (r[dst].modules + n / 2)); + } +} + +void +erts_update_ranges(BeamInstr* code, Uint size) +{ + ErtsCodeIndex dst = erts_staging_code_ix(); + ErtsCodeIndex src = erts_active_code_ix(); + Sint i; + Sint n; + Sint need; + + if (src == dst) { + ASSERT(!erts_initialized); + + /* + * During start-up of system, the indices are the same. + * Handle this by faking a source area. + */ + src = (src+1) % ERTS_NUM_CODE_IX; + if (r[src].modules) { + erts_smp_atomic_add_nob(&mem_used, -r[src].allocated); + erts_free(ERTS_ALC_T_MODULE_REFS, r[src].modules); + } + r[src] = r[dst]; + r[dst].modules = 0; + } + + CHECK(&r[src]); + + ASSERT(r[dst].modules == NULL); + need = r[dst].allocated = r[src].n + 1; + erts_smp_atomic_add_nob(&mem_used, need); + r[dst].modules = (Range *) erts_alloc(ERTS_ALC_T_MODULE_REFS, + need * sizeof(Range)); + n = 0; + for (i = 0; i < r[src].n; i++) { + Range* rp = r[src].modules+i; + if (code < rp->start) { + r[dst].modules[n].start = code; + erts_smp_atomic_init_nob(&r[dst].modules[n].end, + (erts_aint_t)(((byte *)code) + size)); + ASSERT(!n || RANGE_END(&r[dst].modules[n-1]) < code); + n++; + break; + } + if (rp->start < RANGE_END(rp)) { + /* Only insert a module that has not been purged. */ + r[dst].modules[n].start = rp->start; + erts_smp_atomic_init_nob(&r[dst].modules[n].end, + (erts_aint_t)(RANGE_END(rp))); + ASSERT(!n || RANGE_END(&r[dst].modules[n-1]) < rp->start); + n++; + } + } + + while (i < r[src].n) { + Range* rp = r[src].modules+i; + if (rp->start < RANGE_END(rp)) { + /* Only insert a module that has not been purged. */ + r[dst].modules[n].start = rp->start; + erts_smp_atomic_init_nob(&r[dst].modules[n].end, + (erts_aint_t)(RANGE_END(rp))); + ASSERT(!n || RANGE_END(&r[dst].modules[n-1]) < rp->start); + n++; + } + i++; + } + + if (n == 0 || code > r[dst].modules[n-1].start) { + r[dst].modules[n].start = code; + erts_smp_atomic_init_nob(&r[dst].modules[n].end, + (erts_aint_t)(((byte *)code) + size)); + ASSERT(!n || RANGE_END(&r[dst].modules[n-1]) < code); + n++; + } + + ASSERT(n <= r[src].n+1); + r[dst].n = n; + erts_smp_atomic_set_nob(&r[dst].mid, + (erts_aint_t) (r[dst].modules + n / 2)); + + CHECK(&r[dst]); + CHECK(&r[src]); +} + +void +erts_remove_from_ranges(BeamInstr* code) +{ + Range* rp = find_range(code); + erts_smp_atomic_set_nob(&rp->end, (erts_aint_t)rp->start); +} + +UWord +erts_ranges_sz(void) +{ + return erts_smp_atomic_read_nob(&mem_used) * sizeof(Range); +} + +/* + * Find a function from the given pc and fill information in + * the FunctionInfo struct. If the full_info is non-zero, fill + * in all available information (including location in the + * source code). If no function is found, the 'current' field + * will be set to NULL. + */ + +void +erts_lookup_function_info(FunctionInfo* fi, BeamInstr* pc, int full_info) +{ + BeamInstr** low; + BeamInstr** high; + BeamInstr** mid; + Range* rp; + + fi->current = NULL; + fi->needed = 5; + fi->loc = LINE_INVALID_LOCATION; + rp = find_range(pc); + if (rp == 0) { + return; + } + + low = (BeamInstr **) (rp->start + MI_FUNCTIONS); + high = low + rp->start[MI_NUM_FUNCTIONS]; + while (low < high) { + mid = low + (high-low) / 2; + if (pc < mid[0]) { + high = mid; + } else if (pc < mid[1]) { + fi->current = mid[0]+2; + if (full_info) { + BeamInstr** fp = (BeamInstr **) (rp->start + + MI_FUNCTIONS); + int idx = mid - fp; + lookup_loc(fi, pc, rp->start, idx); + } + return; + } else { + low = mid + 1; + } + } +} + +static Range* +find_range(BeamInstr* pc) +{ + ErtsCodeIndex active = erts_active_code_ix(); + Range* low = r[active].modules; + Range* high = low + r[active].n; + Range* mid = (Range *) erts_smp_atomic_read_nob(&r[active].mid); + + CHECK(&r[active]); + while (low < high) { + if (pc < mid->start) { + high = mid; + } else if (pc > RANGE_END(mid)) { + low = mid + 1; + } else { + erts_smp_atomic_set_nob(&r[active].mid, (erts_aint_t) mid); + return mid; + } + mid = low + (high-low) / 2; + } + return 0; +} + +static void +lookup_loc(FunctionInfo* fi, BeamInstr* orig_pc, BeamInstr* modp, int idx) +{ + Eterm* line = (Eterm *) modp[MI_LINE_TABLE]; + Eterm* low; + Eterm* high; + Eterm* mid; + Eterm pc; + + if (line == 0) { + return; + } + + pc = (Eterm) (BeamInstr) orig_pc; + fi->fname_ptr = (Eterm *) (BeamInstr) line[MI_LINE_FNAME_PTR]; + low = (Eterm *) (BeamInstr) line[MI_LINE_FUNC_TAB+idx]; + high = (Eterm *) (BeamInstr) line[MI_LINE_FUNC_TAB+idx+1]; + while (high > low) { + mid = low + (high-low) / 2; + if (pc < mid[0]) { + high = mid; + } else if (pc < mid[1]) { + int file; + int index = mid - (Eterm *) (BeamInstr) line[MI_LINE_FUNC_TAB]; + + if (line[MI_LINE_LOC_SIZE] == 2) { + Uint16* loc_table = + (Uint16 *) (BeamInstr) line[MI_LINE_LOC_TAB]; + fi->loc = loc_table[index]; + } else { + Uint32* loc_table = + (Uint32 *) (BeamInstr) line[MI_LINE_LOC_TAB]; + ASSERT(line[MI_LINE_LOC_SIZE] == 4); + fi->loc = loc_table[index]; + } + if (fi->loc == LINE_INVALID_LOCATION) { + return; + } + fi->needed += 3+2+3+2; + file = LOC_FILE(fi->loc); + if (file == 0) { + /* Special case: Module name with ".erl" appended */ + Atom* mod_atom = atom_tab(atom_val(fi->current[0])); + fi->needed += 2*(mod_atom->len+4); + } else { + Atom* ap = atom_tab(atom_val((fi->fname_ptr)[file-1])); + fi->needed += 2*ap->len; + } + return; + } else { + low = mid + 1; + } + } +} diff --git a/erts/emulator/beam/bif.c b/erts/emulator/beam/bif.c index fc00b42454..fcbeb6cf5c 100644 --- a/erts/emulator/beam/bif.c +++ b/erts/emulator/beam/bif.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 1996-2012. All Rights Reserved. + * Copyright Ericsson AB 1996-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -37,10 +37,14 @@ #include "erl_db_util.h" #include "register.h" #include "erl_thr_progress.h" +#define ERTS_PTAB_WANT_BIF_IMPL__ +#include "erl_ptab.h" +#include "erl_bits.h" static Export* flush_monitor_message_trap = NULL; static Export* set_cpu_topology_trap = NULL; static Export* await_proc_exit_trap = NULL; +static Export* await_port_send_result_trap = NULL; Export* erts_format_cpu_topology_trap = NULL; static Export *await_sched_wall_time_mod_trap; @@ -83,8 +87,10 @@ static int insert_internal_link(Process* p, Eterm rpid) ASSERT(is_internal_pid(rpid)); #ifdef ERTS_SMP - if (IS_TRACED(p) && (p->trace_flags & (F_TRACE_SOL|F_TRACE_SOL1))) + if (IS_TRACED(p) + && (ERTS_TRACE_FLAGS(p) & (F_TRACE_SOL|F_TRACE_SOL1))) { rp_locks = ERTS_PROC_LOCKS_ALL; + } erts_smp_proc_lock(p, ERTS_PROC_LOCK_LINK); #endif @@ -100,27 +106,27 @@ static int insert_internal_link(Process* p, Eterm rpid) } if (p != rp) { - erts_add_link(&(p->nlinks), LINK_PID, rp->id); - erts_add_link(&(rp->nlinks), LINK_PID, p->id); + erts_add_link(&ERTS_P_LINKS(p), LINK_PID, rp->common.id); + erts_add_link(&ERTS_P_LINKS(rp), LINK_PID, p->common.id); - ASSERT(is_nil(p->tracer_proc) - || is_internal_pid(p->tracer_proc) - || is_internal_port(p->tracer_proc)); + ASSERT(is_nil(ERTS_TRACER_PROC(p)) + || is_internal_pid(ERTS_TRACER_PROC(p)) + || is_internal_port(ERTS_TRACER_PROC(p))); if (IS_TRACED(p)) { - if (p->trace_flags & (F_TRACE_SOL|F_TRACE_SOL1)) { - rp->trace_flags |= (p->trace_flags & TRACEE_FLAGS); - rp->tracer_proc = p->tracer_proc; /* maybe steal */ + if (ERTS_TRACE_FLAGS(p) & (F_TRACE_SOL|F_TRACE_SOL1)) { + ERTS_TRACE_FLAGS(rp) |= (ERTS_TRACE_FLAGS(p) & TRACEE_FLAGS); + ERTS_TRACER_PROC(rp) = ERTS_TRACER_PROC(p); /* maybe steal */ - if (p->trace_flags & F_TRACE_SOL1) { /* maybe override */ - rp->trace_flags &= ~(F_TRACE_SOL1 | F_TRACE_SOL); - p->trace_flags &= ~(F_TRACE_SOL1 | F_TRACE_SOL); + if (ERTS_TRACE_FLAGS(p) & F_TRACE_SOL1) { /* maybe override */ + ERTS_TRACE_FLAGS(rp) &= ~(F_TRACE_SOL1 | F_TRACE_SOL); + ERTS_TRACE_FLAGS(p) &= ~(F_TRACE_SOL1 | F_TRACE_SOL); } } } } if (IS_TRACED_FL(rp, F_TRACE_PROCS)) - trace_proc(p, rp, am_getting_linked, p->id); + trace_proc(p, rp, am_getting_linked, p->common.id); if (p == rp) erts_smp_proc_unlock(p, rp_locks & ~ERTS_PROC_LOCK_MAIN); @@ -144,10 +150,6 @@ BIF_RETTYPE link_1(BIF_ALIST_1) /* check that the pid or port which is our argument is OK */ if (is_internal_pid(BIF_ARG_1)) { - if (internal_pid_index(BIF_ARG_1) >= erts_max_processes) { - BIF_ERROR(BIF_P, BADARG); - } - if (insert_internal_link(BIF_P, BIF_ARG_1)) { BIF_RET(am_true); } @@ -157,19 +159,40 @@ BIF_RETTYPE link_1(BIF_ALIST_1) } if (is_internal_port(BIF_ARG_1)) { - Port *pt = erts_id2port(BIF_ARG_1, BIF_P, ERTS_PROC_LOCK_MAIN); - if (!pt) { + int send_link_signal = 0; + Port *prt = erts_port_lookup(BIF_ARG_1, + (erts_port_synchronous_ops + ? ERTS_PORT_SFLGS_INVALID_DRIVER_LOOKUP + : ERTS_PORT_SFLGS_INVALID_LOOKUP)); + if (!prt) { goto res_no_proc; } erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCK_LINK); - if (erts_add_link(&(BIF_P->nlinks), LINK_PID, BIF_ARG_1) >= 0) - erts_add_link(&(pt->nlinks), LINK_PID, BIF_P->id); + if (erts_add_link(&ERTS_P_LINKS(BIF_P), LINK_PID, BIF_ARG_1) >= 0) + send_link_signal = 1; /* else: already linked */ erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCK_LINK); - erts_smp_port_unlock(pt); + + if (send_link_signal) { + Eterm ref; + Eterm *refp = erts_port_synchronous_ops ? &ref : NULL; + + switch (erts_port_link(BIF_P, prt, BIF_P->common.id, refp)) { + case ERTS_PORT_OP_DROPPED: + case ERTS_PORT_OP_BADARG: + goto res_no_proc; + case ERTS_PORT_OP_SCHEDULED: + if (refp) { + ASSERT(is_internal_ref(ref)); + BIF_TRAP3(await_port_send_result_trap, BIF_P, ref, am_true, am_true); + } + default: + break; + } + } BIF_RET(am_true); } else if (is_external_port(BIF_ARG_1) @@ -182,7 +205,7 @@ BIF_RETTYPE link_1(BIF_ALIST_1) erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCK_LINK); /* We may earn time by checking first that we're not linked already */ - if (erts_lookup_link(BIF_P->nlinks, BIF_ARG_1) != NULL) { + if (erts_lookup_link(ERTS_P_LINKS(BIF_P), BIF_ARG_1) != NULL) { erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCK_LINK); BIF_RET(am_true); } @@ -209,10 +232,10 @@ BIF_RETTYPE link_1(BIF_ALIST_1) erts_smp_de_links_lock(dep); - erts_add_link(&(BIF_P->nlinks), LINK_PID, BIF_ARG_1); + erts_add_link(&ERTS_P_LINKS(BIF_P), LINK_PID, BIF_ARG_1); lnk = erts_add_or_lookup_link(&(dep->nlinks), LINK_PID, - BIF_P->id); + BIF_P->common.id); ASSERT(lnk != NULL); erts_add_link(&ERTS_LINK_ROOT(lnk), LINK_PID, BIF_ARG_1); @@ -220,7 +243,7 @@ BIF_RETTYPE link_1(BIF_ALIST_1) erts_smp_de_runlock(dep); erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCK_LINK); - code = erts_dsig_send_link(&dsd, BIF_P->id, BIF_ARG_1); + code = erts_dsig_send_link(&dsd, BIF_P->common.id, BIF_ARG_1); if (code == ERTS_DSIG_SEND_YIELD) ERTS_BIF_YIELD_RETURN(BIF_P, am_true); BIF_RET(am_true); @@ -233,15 +256,17 @@ BIF_RETTYPE link_1(BIF_ALIST_1) BIF_ERROR(BIF_P, BADARG); - res_no_proc: - if (BIF_P->flags & F_TRAPEXIT) { - ErtsProcLocks locks = ERTS_PROC_LOCK_MAIN; - erts_deliver_exit_message(BIF_ARG_1, BIF_P, &locks, am_noproc, NIL); - erts_smp_proc_unlock(BIF_P, ~ERTS_PROC_LOCK_MAIN & locks); - BIF_RET(am_true); +res_no_proc: { + erts_aint32_t state = erts_smp_atomic32_read_nob(&BIF_P->state); + if (state & ERTS_PSFLG_TRAP_EXIT) { + ErtsProcLocks locks = ERTS_PROC_LOCK_MAIN; + erts_deliver_exit_message(BIF_ARG_1, BIF_P, &locks, am_noproc, NIL); + erts_smp_proc_unlock(BIF_P, ~ERTS_PROC_LOCK_MAIN & locks); + BIF_RET(am_true); + } + else + BIF_ERROR(BIF_P, EXC_NOPROC); } - else - BIF_ERROR(BIF_P, EXC_NOPROC); } #define ERTS_DEMONITOR_FALSE 2 @@ -287,7 +312,7 @@ remote_demonitor(Process *c_p, DistEntry *dep, Eterm ref, Eterm to) if (dmon) erts_destroy_monitor(dmon); } - mon = erts_remove_monitor(&c_p->monitors, ref); + mon = erts_remove_monitor(&ERTS_P_MONITORS(c_p), ref); erts_smp_proc_unlock(c_p, ERTS_PROC_LOCK_LINK); res = ERTS_DEMONITOR_TRUE; @@ -296,7 +321,7 @@ remote_demonitor(Process *c_p, DistEntry *dep, Eterm ref, Eterm to) case ERTS_DSIG_PREP_CONNECTED: erts_smp_de_links_lock(dep); - mon = erts_remove_monitor(&c_p->monitors, ref); + mon = erts_remove_monitor(&ERTS_P_MONITORS(c_p), ref); dmon = erts_remove_monitor(&dep->monitors, ref); erts_smp_de_links_unlock(dep); erts_smp_de_runlock(dep); @@ -323,7 +348,7 @@ remote_demonitor(Process *c_p, DistEntry *dep, Eterm ref, Eterm to) * the atom is stored there. Yield if necessary. */ code = erts_dsig_send_demonitor(&dsd, - c_p->id, + c_p->common.id, (mon->name != NIL ? mon->name : mon->pid), @@ -338,8 +363,7 @@ remote_demonitor(Process *c_p, DistEntry *dep, Eterm ref, Eterm to) break; default: ASSERT(! "Invalid dsig prepare result"); - res = ERTS_DEMONITOR_INTERNAL_ERROR; - break; + return ERTS_DEMONITOR_INTERNAL_ERROR; } #ifndef ERTS_SMP @@ -385,7 +409,7 @@ static int demonitor(Process *c_p, Eterm ref) goto done; /* Cannot be this monitor's ref */ } - mon = erts_lookup_monitor(c_p->monitors, ref); + mon = erts_lookup_monitor(ERTS_P_MONITORS(c_p), ref); if (!mon) { res = ERTS_DEMONITOR_FALSE; goto done; @@ -424,7 +448,7 @@ static int demonitor(Process *c_p, Eterm ref) to, ERTS_PROC_LOCK_LINK, ERTS_P2P_FLG_ALLOW_OTHER_X); - mon = erts_remove_monitor(&c_p->monitors, ref); + mon = erts_remove_monitor(&ERTS_P_MONITORS(c_p), ref); #ifndef ERTS_SMP ASSERT(mon); #else @@ -438,7 +462,7 @@ static int demonitor(Process *c_p, Eterm ref) } if (rp) { ErtsMonitor *rmon; - rmon = erts_remove_monitor(&(rp->monitors), ref); + rmon = erts_remove_monitor(&ERTS_P_MONITORS(rp), ref); if (rp != c_p) erts_smp_proc_unlock(rp, ERTS_PROC_LOCK_LINK); if (rmon != NULL) @@ -580,7 +604,7 @@ local_pid_monitor(Process *p, Eterm target) mon_ref = erts_make_ref(p); ERTS_BIF_PREP_RET(ret, mon_ref); - if (target == p->id) { + if (target == p->common.id) { return ret; } @@ -597,8 +621,8 @@ local_pid_monitor(Process *p, Eterm target) else { ASSERT(rp != p); - erts_add_monitor(&(p->monitors), MON_ORIGIN, mon_ref, target, NIL); - erts_add_monitor(&(rp->monitors), MON_TARGET, mon_ref, p->id, NIL); + erts_add_monitor(&ERTS_P_MONITORS(p), MON_ORIGIN, mon_ref, target, NIL); + erts_add_monitor(&ERTS_P_MONITORS(rp), MON_TARGET, mon_ref, p->common.id, NIL); erts_smp_proc_unlock(rp, ERTS_PROC_LOCK_LINK); } @@ -633,9 +657,9 @@ local_name_monitor(Process *p, Eterm target_name) UnUseTmpHeap(3,p); } else if (rp != p) { - erts_add_monitor(&(p->monitors), MON_ORIGIN, mon_ref, rp->id, + erts_add_monitor(&ERTS_P_MONITORS(p), MON_ORIGIN, mon_ref, rp->common.id, target_name); - erts_add_monitor(&(rp->monitors), MON_TARGET, mon_ref, p->id, + erts_add_monitor(&ERTS_P_MONITORS(rp), MON_TARGET, mon_ref, p->common.id, target_name); erts_smp_proc_unlock(rp, ERTS_PROC_LOCK_LINK); } @@ -687,16 +711,16 @@ remote_monitor(Process *p, Eterm bifarg1, Eterm bifarg2, erts_smp_de_links_lock(dep); - erts_add_monitor(&(p->monitors), MON_ORIGIN, mon_ref, p_trgt, + erts_add_monitor(&ERTS_P_MONITORS(p), MON_ORIGIN, mon_ref, p_trgt, p_name); - erts_add_monitor(&(dep->monitors), MON_TARGET, mon_ref, p->id, + erts_add_monitor(&(dep->monitors), MON_TARGET, mon_ref, p->common.id, d_name); erts_smp_de_links_unlock(dep); erts_smp_de_runlock(dep); erts_smp_proc_unlock(p, ERTS_PROC_LOCK_LINK); - code = erts_dsig_send_monitor(&dsd, p->id, target, mon_ref); + code = erts_dsig_send_monitor(&dsd, p->common.id, target, mon_ref); if (code == ERTS_DSIG_SEND_YIELD) ERTS_BIF_PREP_YIELD_RETURN(ret, p, mon_ref); else @@ -939,36 +963,39 @@ BIF_RETTYPE unlink_1(BIF_ALIST_1) } if (is_internal_port(BIF_ARG_1)) { - Port *pt = erts_id2port_sflgs(BIF_ARG_1, - BIF_P, - ERTS_PROC_LOCK_MAIN, - ERTS_PORT_SFLGS_DEAD); - erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCK_LINK|ERTS_PROC_LOCK_STATUS); #ifdef ERTS_SMP - if (ERTS_PROC_PENDING_EXIT(BIF_P)) { - if (pt) - erts_smp_port_unlock(pt); + if (ERTS_PROC_PENDING_EXIT(BIF_P)) goto handle_pending_exit; - } #endif - l = erts_remove_link(&BIF_P->nlinks, BIF_ARG_1); - - ASSERT(pt || !l); - - if (pt) { - rl = erts_remove_link(&pt->nlinks, BIF_P->id); - erts_smp_port_unlock(pt); - if (rl) - erts_destroy_link(rl); - } + l = erts_remove_link(&ERTS_P_LINKS(BIF_P), BIF_ARG_1); erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCK_LINK|ERTS_PROC_LOCK_STATUS); - if (l) + if (l) { + Port *prt; + erts_destroy_link(l); + /* Send unlink signal */ + prt = erts_port_lookup(BIF_ARG_1, ERTS_PORT_SFLGS_DEAD); + if (prt) { + ErtsPortOpResult res; + Eterm ref; + Eterm *refp = erts_port_synchronous_ops ? &ref : NULL; +#ifdef DEBUG + ref = NIL; +#endif + res = erts_port_unlink(BIF_P, prt, BIF_P->common.id, refp); + + if (refp && res == ERTS_PORT_OP_SCHEDULED) { + ASSERT(is_internal_ref(ref)); + BIF_TRAP3(await_port_send_result_trap, BIF_P, ref, am_true, am_true); + } + } + } + BIF_RET(am_true); } else if (is_external_port(BIF_ARG_1) @@ -991,7 +1018,7 @@ BIF_RETTYPE unlink_1(BIF_ALIST_1) if (ERTS_PROC_PENDING_EXIT(BIF_P)) goto handle_pending_exit; #endif - l = erts_remove_link(&BIF_P->nlinks,BIF_ARG_1); + l = erts_remove_link(&ERTS_P_LINKS(BIF_P), BIF_ARG_1); erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCK_LINK|ERTS_PROC_LOCK_STATUS); @@ -1020,8 +1047,8 @@ BIF_RETTYPE unlink_1(BIF_ALIST_1) #endif case ERTS_DSIG_PREP_CONNECTED: - erts_remove_dist_link(&dld, BIF_P->id, BIF_ARG_1, dep); - code = erts_dsig_send_unlink(&dsd, BIF_P->id, BIF_ARG_1); + erts_remove_dist_link(&dld, BIF_P->common.id, BIF_ARG_1, dep); + code = erts_dsig_send_unlink(&dsd, BIF_P->common.id, BIF_ARG_1); erts_destroy_dist_link(&dld); if (code == ERTS_DSIG_SEND_YIELD) ERTS_BIF_YIELD_RETURN(BIF_P, am_true); @@ -1035,10 +1062,6 @@ BIF_RETTYPE unlink_1(BIF_ALIST_1) /* Internal pid... */ - /* process ok ? */ - if (internal_pid_index(BIF_ARG_1) >= erts_max_processes) - BIF_ERROR(BIF_P, BADARG); - erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCK_LINK|ERTS_PROC_LOCK_STATUS); /* get process struct */ @@ -1057,7 +1080,7 @@ BIF_RETTYPE unlink_1(BIF_ALIST_1) #endif /* unlink and ignore errors */ - l = erts_remove_link(&BIF_P->nlinks,BIF_ARG_1); + l = erts_remove_link(&ERTS_P_LINKS(BIF_P), BIF_ARG_1); if (l != NULL) erts_destroy_link(l); @@ -1065,12 +1088,12 @@ BIF_RETTYPE unlink_1(BIF_ALIST_1) ERTS_SMP_ASSERT_IS_NOT_EXITING(BIF_P); } else { - rl = erts_remove_link(&(rp->nlinks),BIF_P->id); + rl = erts_remove_link(&ERTS_P_LINKS(rp), BIF_P->common.id); if (rl != NULL) erts_destroy_link(rl); if (IS_TRACED_FL(rp, F_TRACE_PROCS) && rl != NULL) { - trace_proc(BIF_P, rp, am_getting_unlinked, BIF_P->id); + trace_proc(BIF_P, rp, am_getting_unlinked, BIF_P->common.id); } if (rp != BIF_P) @@ -1103,8 +1126,9 @@ BIF_RETTYPE hibernate_3(BIF_ALIST_3) if (erts_hibernate(BIF_P, BIF_ARG_1, BIF_ARG_2, BIF_ARG_3, reg)) { /* - * If hibernate succeeded, TRAP. The process will be suspended - * if status is P_WAITING or continue (if any message was in the queue). + * If hibernate succeeded, TRAP. The process will be wait in a + * hibernated state if its state is inactive (!ERTS_PSFLG_ACTIVE); + * otherwise, continue executing (if any message was in the queue). */ BIF_TRAP_CODE_PTR_(BIF_P, BIF_P->i); } @@ -1342,15 +1366,39 @@ BIF_RETTYPE exit_2(BIF_ALIST_2) */ if (is_internal_port(BIF_ARG_1)) { + Eterm ref, *refp; + Uint32 invalid_flags; Port *prt; - erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCK_MAIN); - prt = erts_id2port(BIF_ARG_1, NULL, 0); + + if (erts_port_synchronous_ops) { + refp = &ref; + invalid_flags = ERTS_PORT_SFLGS_INVALID_DRIVER_LOOKUP; + } + else { + refp = NULL; + invalid_flags = ERTS_PORT_SFLGS_INVALID_LOOKUP; + } + + prt = erts_port_lookup(BIF_ARG_1, invalid_flags); + if (prt) { - erts_do_exit_port(prt, BIF_P->id, BIF_ARG_2); - erts_port_release(prt); + ErtsPortOpResult res; + +#ifdef DEBUG + ref = NIL; +#endif + + res = erts_port_exit(BIF_P, 0, prt, BIF_P->common.id, BIF_ARG_2, refp); + + ERTS_BIF_CHK_EXITED(BIF_P); + + if (refp && res == ERTS_PORT_OP_SCHEDULED) { + ASSERT(is_internal_ref(ref)); + BIF_TRAP3(await_port_send_result_trap, BIF_P, ref, am_true, am_true); + } + } - erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCK_MAIN); - ERTS_BIF_CHK_EXITED(BIF_P); + BIF_RET(am_true); } else if(is_external_port(BIF_ARG_1) @@ -1376,7 +1424,7 @@ BIF_RETTYPE exit_2(BIF_ALIST_2) case ERTS_DSIG_PREP_NOT_CONNECTED: BIF_TRAP2(dexit_trap, BIF_P, BIF_ARG_1, BIF_ARG_2); case ERTS_DSIG_PREP_CONNECTED: - code = erts_dsig_send_exit2(&dsd, BIF_P->id, BIF_ARG_1, BIF_ARG_2); + code = erts_dsig_send_exit2(&dsd, BIF_P->common.id, BIF_ARG_1, BIF_ARG_2); if (code == ERTS_DSIG_SEND_YIELD) ERTS_BIF_YIELD_RETURN(BIF_P, am_true); BIF_RET(am_true); @@ -1394,18 +1442,15 @@ BIF_RETTYPE exit_2(BIF_ALIST_2) */ ErtsProcLocks rp_locks; - if (internal_pid_index(BIF_ARG_1) >= erts_max_processes) - BIF_ERROR(BIF_P, BADARG); - if (BIF_ARG_1 == BIF_P->id) { + if (BIF_ARG_1 == BIF_P->common.id) { rp_locks = ERTS_PROC_LOCKS_ALL; rp = BIF_P; erts_smp_proc_lock(rp, ERTS_PROC_LOCKS_ALL_MINOR); } else { rp_locks = ERTS_PROC_LOCKS_XSIG_SEND; - rp = erts_pid2proc_opt(BIF_P, ERTS_PROC_LOCK_MAIN, - BIF_ARG_1, rp_locks, - ERTS_P2P_FLG_SMP_INC_REFC); + rp = erts_pid2proc(BIF_P, ERTS_PROC_LOCK_MAIN, + BIF_ARG_1, rp_locks); if (!rp) { BIF_RET(am_true); } @@ -1415,7 +1460,7 @@ BIF_RETTYPE exit_2(BIF_ALIST_2) * Send an exit signal. */ erts_send_exit_signal(BIF_P, - BIF_P->id, + BIF_P->common.id, rp, &rp_locks, BIF_ARG_2, @@ -1427,8 +1472,6 @@ BIF_RETTYPE exit_2(BIF_ALIST_2) rp_locks &= ~ERTS_PROC_LOCK_MAIN; if (rp_locks) erts_smp_proc_unlock(rp, rp_locks); - if (rp != BIF_P) - erts_smp_proc_dec_refc(rp); #endif /* * We may have exited ourselves and may have to take action. @@ -1502,14 +1545,13 @@ BIF_RETTYPE process_flag_2(BIF_ALIST_2) BIF_RET(old_value); } else if (BIF_ARG_1 == am_priority) { - erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCK_STATUS); old_value = erts_set_process_priority(BIF_P, BIF_ARG_2); - erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCK_STATUS); if (old_value == THE_NON_VALUE) goto error; BIF_RET(old_value); } else if (BIF_ARG_1 == am_trap_exit) { + erts_aint32_t state; Uint trap_exit; if (BIF_ARG_2 == am_true) { trap_exit = 1; @@ -1520,63 +1562,58 @@ BIF_RETTYPE process_flag_2(BIF_ALIST_2) } /* * NOTE: It is important that we check for pending exit signals - * and handle them before flag trap_exit is set to true. - * For more info, see implementation of erts_send_exit_signal(). + * and handle them before returning if trap_exit is set to + * true. For more info, see implementation of + * erts_send_exit_signal(). */ - erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCK_STATUS); - ERTS_SMP_BIF_CHK_PENDING_EXIT(BIF_P, - ERTS_PROC_LOCK_MAIN|ERTS_PROC_LOCK_STATUS); - old_value = ERTS_PROC_IS_TRAPPING_EXITS(BIF_P) ? am_true : am_false; - if (trap_exit) { - ERTS_PROC_SET_TRAP_EXIT(BIF_P); - } else { - ERTS_PROC_UNSET_TRAP_EXIT(BIF_P); + if (trap_exit) + state = erts_smp_atomic32_read_bor_mb(&BIF_P->state, + ERTS_PSFLG_TRAP_EXIT); + else + state = erts_smp_atomic32_read_band_mb(&BIF_P->state, + ~ERTS_PSFLG_TRAP_EXIT); +#ifdef ERTS_SMP + if (ERTS_PROC_PENDING_EXIT(BIF_P)) { + erts_handle_pending_exit(BIF_P, ERTS_PROC_LOCK_MAIN); + ERTS_BIF_EXITED(BIF_P); } - erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCK_STATUS); +#endif + + old_value = (state & ERTS_PSFLG_TRAP_EXIT) ? am_true : am_false; BIF_RET(old_value); } else if (BIF_ARG_1 == am_scheduler) { - int yield; - ErtsRunQueue *old; - ErtsRunQueue *new; + ErtsRunQueue *old, *new, *curr; Sint sched; + erts_aint32_t state; + if (!is_small(BIF_ARG_2)) goto error; sched = signed_val(BIF_ARG_2); if (sched < 0 || erts_no_schedulers < sched) goto error; - erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCK_STATUS); - old = BIF_P->bound_runq; -#ifdef ERTS_SMP - ASSERT(!old || old == BIF_P->run_queue); -#endif - new = !sched ? NULL : erts_schedid2runq(sched); -#ifndef ERTS_SMP - yield = 0; -#else - if (new == old) - yield = 0; + + if (sched == 0) { + new = NULL; + state = erts_smp_atomic32_read_band_mb(&BIF_P->state, + ~ERTS_PSFLG_BOUND); + } else { - ErtsRunQueue *curr = BIF_P->run_queue; - if (!new) - erts_smp_runq_lock(curr); - else - erts_smp_runqs_lock(curr, new); - yield = new && BIF_P->run_queue != new; -#endif - BIF_P->bound_runq = new; + new = erts_schedid2runq(sched); #ifdef ERTS_SMP - if (new) - BIF_P->run_queue = new; - if (!new) - erts_smp_runq_unlock(curr); - else - erts_smp_runqs_unlock(curr, new); - } + erts_atomic_set_nob(&BIF_P->run_queue, (erts_aint_t) new); #endif - erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCK_STATUS); + state = erts_smp_atomic32_read_bor_mb(&BIF_P->state, + ERTS_PSFLG_BOUND); + } + + curr = ERTS_GET_SCHEDULER_DATA_FROM_PROC(BIF_P)->run_queue; + old = (ERTS_PSFLG_BOUND & state) ? curr : NULL; + + ASSERT(!old || old == curr); + old_value = old ? make_small(old->ix+1) : make_small(0); - if (yield) + if (new && new != curr) ERTS_BIF_YIELD_RETURN_X(BIF_P, old_value, am_scheduler); else BIF_RET(old_value); @@ -1625,11 +1662,13 @@ BIF_RETTYPE process_flag_2(BIF_ALIST_2) goto error; } erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCKS_ALL_MINOR); - old_value = BIF_P->trace_flags & F_SENSITIVE ? am_true : am_false; + old_value = (ERTS_TRACE_FLAGS(BIF_P) & F_SENSITIVE + ? am_true + : am_false); if (is_sensitive) { - BIF_P->trace_flags |= F_SENSITIVE; + ERTS_TRACE_FLAGS(BIF_P) |= F_SENSITIVE; } else { - BIF_P->trace_flags &= ~F_SENSITIVE; + ERTS_TRACE_FLAGS(BIF_P) &= ~F_SENSITIVE; } erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCKS_ALL_MINOR); BIF_RET(old_value); @@ -1755,8 +1794,9 @@ ebif_bang_2(BIF_ALIST_2) #define SEND_BADARG (-4) #define SEND_USER_ERROR (-5) #define SEND_INTERNAL_ERROR (-6) +#define SEND_AWAIT_RESULT (-7) -Sint do_send(Process *p, Eterm to, Eterm msg, int suspend); +Sint do_send(Process *p, Eterm to, Eterm msg, int suspend, Eterm *refp); static Sint remote_send(Process *p, DistEntry *dep, Eterm to, Eterm full_to, Eterm msg, int suspend) @@ -1810,7 +1850,7 @@ static Sint remote_send(Process *p, DistEntry *dep, } Sint -do_send(Process *p, Eterm to, Eterm msg, int suspend) { +do_send(Process *p, Eterm to, Eterm msg, int suspend, Eterm *refp) { Eterm portid; Port *pt; Process* rp; @@ -1822,17 +1862,10 @@ do_send(Process *p, Eterm to, Eterm msg, int suspend) { trace_send(p, to, msg); if (ERTS_PROC_GET_SAVED_CALLS_BUF(p)) save_calls(p, &exp_send); - - if (internal_pid_index(to) >= erts_max_processes) - return SEND_BADARG; - rp = erts_pid2proc_opt(p, ERTS_PROC_LOCK_MAIN, - to, 0, ERTS_P2P_FLG_SMP_INC_REFC); - - if (!rp) { - ERTS_SMP_ASSERT_IS_NOT_EXITING(p); + rp = erts_proc_lookup_raw(to); + if (!rp) return 0; - } } else if (is_external_pid(to)) { dep = external_pid_dist_entry(to); if(dep == erts_this_dist_entry) { @@ -1841,7 +1874,7 @@ do_send(Process *p, Eterm to, Eterm msg, int suspend) { "Discarding message %T from %T to %T in an old " "incarnation (%d) of this node (%d)\n", msg, - p->id, + p->common.id, to, external_pid_creation(to), erts_this_node->creation); @@ -1850,45 +1883,32 @@ do_send(Process *p, Eterm to, Eterm msg, int suspend) { } return remote_send(p, dep, to, to, msg, suspend); } else if (is_atom(to)) { - - /* Need to virtual schedule out sending process - * because of lock wait. This is only necessary - * for internal port calling but the lock is bundled - * with name lookup. - */ - - if (IS_TRACED_FL(p, F_TRACE_SCHED_PROCS)) { - trace_virtual_sched(p, am_out); - } - if (erts_system_profile_flags.runnable_procs && erts_system_profile_flags.exclusive) { - profile_runnable_proc(p, am_inactive); + Eterm id = erts_whereis_name_to_id(p, to); + + rp = erts_proc_lookup(id); + if (rp) { + if (IS_TRACED(p)) + trace_send(p, to, msg); + if (ERTS_PROC_GET_SAVED_CALLS_BUF(p)) + save_calls(p, &exp_send); + goto send_message; } - erts_whereis_name(p, ERTS_PROC_LOCK_MAIN, - to, - &rp, 0, ERTS_P2P_FLG_SMP_INC_REFC, - &pt); + pt = erts_port_lookup(id, + (erts_port_synchronous_ops + ? ERTS_PORT_SFLGS_INVALID_DRIVER_LOOKUP + : ERTS_PORT_SFLGS_INVALID_LOOKUP)); if (pt) { - portid = pt->id; + portid = id; goto port_common; } - - /* Not a port virtually schedule the process back in */ - if (IS_TRACED_FL(p, F_TRACE_SCHED_PROCS)) { - trace_virtual_sched(p, am_in); - } - if (erts_system_profile_flags.runnable_procs && erts_system_profile_flags.exclusive) { - profile_runnable_proc(p, am_active); - } if (IS_TRACED(p)) trace_send(p, to, msg); if (ERTS_PROC_GET_SAVED_CALLS_BUF(p)) save_calls(p, &exp_send); - if (!rp) { - return SEND_BADARG; - } + return SEND_BADARG; } else if (is_external_port(to) && (external_port_dist_entry(to) == erts_this_dist_entry)) { @@ -1897,50 +1917,59 @@ do_send(Process *p, Eterm to, Eterm msg, int suspend) { "Discarding message %T from %T to %T in an old " "incarnation (%d) of this node (%d)\n", msg, - p->id, + p->common.id, to, external_port_creation(to), erts_this_node->creation); erts_send_error_to_logger(p->group_leader, dsbufp); return 0; } else if (is_internal_port(to)) { + int ret_val; portid = to; - /* schedule out calling process, waiting for lock*/ - if (IS_TRACED_FL(p, F_TRACE_SCHED_PROCS)) { - trace_virtual_sched(p, am_out); - } - if (erts_system_profile_flags.runnable_procs && erts_system_profile_flags.exclusive) { - profile_runnable_proc(p, am_inactive); - } - pt = erts_id2port(to, p, ERTS_PROC_LOCK_MAIN); + + pt = erts_port_lookup(portid, + (erts_port_synchronous_ops + ? ERTS_PORT_SFLGS_INVALID_DRIVER_LOOKUP + : ERTS_PORT_SFLGS_INVALID_LOOKUP)); + port_common: - ERTS_SMP_LC_ASSERT(!pt || erts_lc_is_port_locked(pt)); + ret_val = 0; - /* We have waited for locks, trace schedule ports */ - if (pt && IS_TRACED_FL(pt, F_TRACE_SCHED_PORTS)) { - trace_sched_ports_where(pt, am_in, am_command); - } - if (pt && erts_system_profile_flags.runnable_ports && !erts_port_is_scheduled(pt)) { - profile_runnable_port(pt, am_active); - } - - /* XXX let port_command handle the busy stuff !!! */ - if (pt && (pt->status & ERTS_PORT_SFLG_PORT_BUSY)) { - if (suspend) { - erts_suspend(p, ERTS_PROC_LOCK_MAIN, pt); - if (erts_system_monitor_flags.busy_port) { - monitor_generic(p, am_busy_port, portid); + if (pt) { + int ps_flags = suspend ? 0 : ERTS_PORT_SIG_FLG_NOSUSPEND; + *refp = NIL; + + switch (erts_port_command(p, ps_flags, pt, msg, refp)) { + case ERTS_PORT_OP_CALLER_EXIT: + /* We are exiting... */ + return SEND_USER_ERROR; + case ERTS_PORT_OP_BUSY: + /* Nothing has been sent */ + if (suspend) + erts_suspend(p, ERTS_PROC_LOCK_MAIN, pt); + return SEND_YIELD; + case ERTS_PORT_OP_BUSY_SCHEDULED: + /* Message was sent */ + if (suspend) { + erts_suspend(p, ERTS_PROC_LOCK_MAIN, pt); + ret_val = SEND_YIELD_RETURN; + break; } + /* Fall through */ + case ERTS_PORT_OP_SCHEDULED: + if (is_not_nil(*refp)) { + ASSERT(is_internal_ref(*refp)); + ret_val = SEND_AWAIT_RESULT; + } + break; + case ERTS_PORT_OP_DROPPED: + case ERTS_PORT_OP_BADARG: + case ERTS_PORT_OP_DONE: + break; + default: + ERTS_INTERNAL_ERROR("Unexpected erts_port_command() result"); + break; } - /* Virtually schedule out the port before releasing */ - if (IS_TRACED_FL(pt, F_TRACE_SCHED_PORTS)) { - trace_sched_ports_where(pt, am_out, am_command); - } - if (erts_system_profile_flags.runnable_ports && !erts_port_is_scheduled(pt)) { - profile_runnable_port(pt, am_inactive); - } - erts_port_release(pt); - return SEND_YIELD; } if (IS_TRACED(p)) /* trace once only !! */ @@ -1958,30 +1987,11 @@ do_send(Process *p, Eterm to, Eterm msg, int suspend) { SEQ_TRACE_SEND, portid, p); } - /* XXX NO GC in port command */ - erts_port_command(p, p->id, pt, msg); - if (pt) { - /* Virtually schedule out the port before releasing */ - if (IS_TRACED_FL(pt, F_TRACE_SCHED_PORTS)) { - trace_sched_ports_where(pt, am_out, am_command); - } - if (erts_system_profile_flags.runnable_ports && !erts_port_is_scheduled(pt)) { - profile_runnable_port(pt, am_inactive); - } - erts_port_release(pt); - } - /* Virtually schedule in process */ - if (IS_TRACED_FL(p, F_TRACE_SCHED_PROCS)) { - trace_virtual_sched(p, am_in); - } - if (erts_system_profile_flags.runnable_procs && erts_system_profile_flags.exclusive) { - profile_runnable_proc(p, am_active); - } if (ERTS_PROC_IS_EXITING(p)) { KILL_CATCHES(p); /* Must exit */ return SEND_USER_ERROR; } - return 0; + return ret_val; } else if (is_tuple(to)) { /* Remote send */ int ret; tp = tuple_val(to); @@ -1997,47 +2007,27 @@ do_send(Process *p, Eterm to, Eterm msg, int suspend) { dep = erts_sysname_to_connected_dist_entry(tp[2]); if (dep == erts_this_dist_entry) { + Eterm id; erts_deref_dist_entry(dep); if (IS_TRACED(p)) trace_send(p, to, msg); if (ERTS_PROC_GET_SAVED_CALLS_BUF(p)) save_calls(p, &exp_send); - - /* Need to virtual schedule out sending process - * because of lock wait. This is only necessary - * for internal port calling but the lock is bundled. - */ - - if (IS_TRACED_FL(p, F_TRACE_SCHED_PROCS)) { - trace_virtual_sched(p, am_out); - } - if (erts_system_profile_flags.runnable_procs && erts_system_profile_flags.exclusive) { - profile_runnable_proc(p, am_inactive); - } - erts_whereis_name(p, ERTS_PROC_LOCK_MAIN, - tp[1], - &rp, 0, ERTS_P2P_FLG_SMP_INC_REFC, - &pt); + id = erts_whereis_name_to_id(p, tp[1]); + + rp = erts_proc_lookup_raw(id); + if (rp) + goto send_message; + pt = erts_port_lookup(id, + (erts_port_synchronous_ops + ? ERTS_PORT_SFLGS_INVALID_DRIVER_LOOKUP + : ERTS_PORT_SFLGS_INVALID_LOOKUP)); if (pt) { - portid = pt->id; + portid = id; goto port_common; } - /* Port lookup failed, virtually schedule the process - * back in. - */ - - if (IS_TRACED_FL(p, F_TRACE_SCHED_PROCS)) { - trace_virtual_sched(p, am_in); - } - if (erts_system_profile_flags.runnable_procs && erts_system_profile_flags.exclusive) { - profile_runnable_proc(p, am_active); - } - - if (!rp) { - return 0; - } - goto send_message; + return 0; } ret = remote_send(p, dep, tp[1], to, msg, suspend); @@ -2060,23 +2050,15 @@ do_send(Process *p, Eterm to, Eterm msg, int suspend) { rp_locks |= ERTS_PROC_LOCK_MAIN; #endif /* send to local process */ - erts_send_message(p, rp, &rp_locks, msg, 0); - if (!erts_use_sender_punish) + res = erts_send_message(p, rp, &rp_locks, msg, 0); + if (erts_use_sender_punish) + res *= 4; + else res = 0; - else { -#ifdef ERTS_SMP - res = rp->msg_inq.len*4; - if (ERTS_PROC_LOCK_MAIN & rp_locks) - res += rp->msg.len*4; -#else - res = rp->msg.len*4; -#endif - } erts_smp_proc_unlock(rp, p == rp ? (rp_locks & ~ERTS_PROC_LOCK_MAIN) : rp_locks); - erts_smp_proc_dec_refc(rp); return res; } } @@ -2084,6 +2066,7 @@ do_send(Process *p, Eterm to, Eterm msg, int suspend) { BIF_RETTYPE send_3(BIF_ALIST_3) { + Eterm ref; Process *p = BIF_P; Eterm to = BIF_ARG_1; Eterm msg = BIF_ARG_2; @@ -2107,13 +2090,24 @@ BIF_RETTYPE send_3(BIF_ALIST_3) if(!is_nil(l)) { BIF_ERROR(p, BADARG); } - - result = do_send(p, to, msg, suspend); + +#ifdef DEBUG + ref = NIL; +#endif + + result = do_send(p, to, msg, suspend, &ref); if (result > 0) { ERTS_VBUMP_REDS(p, result); + if (ERTS_IS_PROC_OUT_OF_REDS(p)) + goto yield_return; BIF_RET(am_ok); - } else switch (result) { + } + + switch (result) { case 0: + /* May need to yield even though we do not bump reds here... */ + if (ERTS_IS_PROC_OUT_OF_REDS(p)) + goto yield_return; BIF_RET(am_ok); break; case SEND_TRAP: @@ -2131,10 +2125,13 @@ BIF_RETTYPE send_3(BIF_ALIST_3) } break; case SEND_YIELD_RETURN: - if (suspend) - ERTS_BIF_YIELD_RETURN(p, am_ok); - else + if (!suspend) BIF_RET(am_nosuspend); + yield_return: + ERTS_BIF_YIELD_RETURN(p, am_ok); + case SEND_AWAIT_RESULT: + ASSERT(is_internal_ref(ref)); + BIF_TRAP3(await_port_send_result_trap, p, ref, am_nosuspend, am_ok); case SEND_BADARG: BIF_ERROR(p, BADARG); break; @@ -2159,13 +2156,27 @@ BIF_RETTYPE send_2(BIF_ALIST_2) Eterm erl_send(Process *p, Eterm to, Eterm msg) { - Sint result = do_send(p, to, msg, !0); + Eterm ref; + Sint result; + +#ifdef DEBUG + ref = NIL; +#endif + + result = do_send(p, to, msg, !0, &ref); if (result > 0) { ERTS_VBUMP_REDS(p, result); + if (ERTS_IS_PROC_OUT_OF_REDS(p)) + goto yield_return; BIF_RET(msg); - } else switch (result) { + } + + switch (result) { case 0: + /* May need to yield even though we do not bump reds here... */ + if (ERTS_IS_PROC_OUT_OF_REDS(p)) + goto yield_return; BIF_RET(msg); break; case SEND_TRAP: @@ -2175,7 +2186,11 @@ Eterm erl_send(Process *p, Eterm to, Eterm msg) ERTS_BIF_YIELD2(bif_export[BIF_send_2], p, to, msg); break; case SEND_YIELD_RETURN: + yield_return: ERTS_BIF_YIELD_RETURN(p, msg); + case SEND_AWAIT_RESULT: + ASSERT(is_internal_ref(ref)); + BIF_TRAP3(await_port_send_result_trap, p, ref, msg, msg); case SEND_BADARG: BIF_ERROR(p, BADARG); break; @@ -2445,9 +2460,7 @@ BIF_RETTYPE setelement_3(BIF_ALIST_3) /* copy the tuple */ resp = hp; - while (size--) { /* XXX use memcpy? */ - *hp++ = *ptr++; - } + sys_memcpy(hp, ptr, sizeof(Eterm)*size); resp[ix] = BIF_ARG_3; BIF_RET(make_tuple(resp)); } @@ -2460,7 +2473,7 @@ BIF_RETTYPE make_tuple_2(BIF_ALIST_2) Eterm* hp; Eterm res; - if (is_not_small(BIF_ARG_1) || (n = signed_val(BIF_ARG_1)) < 0) { + if (is_not_small(BIF_ARG_1) || (n = signed_val(BIF_ARG_1)) < 0 || n > ERTS_MAX_TUPLE_SIZE) { BIF_ERROR(BIF_P, BADARG); } hp = HAlloc(BIF_P, n+1); @@ -2481,7 +2494,7 @@ BIF_RETTYPE make_tuple_3(BIF_ALIST_3) Eterm list = BIF_ARG_3; Eterm* tup; - if (is_not_small(BIF_ARG_1) || (n = signed_val(BIF_ARG_1)) < 0) { + if (is_not_small(BIF_ARG_1) || (n = signed_val(BIF_ARG_1)) < 0 || n > ERTS_MAX_TUPLE_SIZE) { error: BIF_ERROR(BIF_P, BADARG); } @@ -2533,11 +2546,16 @@ BIF_RETTYPE append_element_2(BIF_ALIST_2) Eterm res; if (is_not_tuple(BIF_ARG_1)) { + error: BIF_ERROR(BIF_P, BADARG); } - ptr = tuple_val(BIF_ARG_1); + ptr = tuple_val(BIF_ARG_1); arity = arityval(*ptr); - hp = HAlloc(BIF_P, arity + 2); + + if (arity + 1 > ERTS_MAX_TUPLE_SIZE) + goto error; + + hp = HAlloc(BIF_P, arity + 2); res = make_tuple(hp); *hp = make_arityval(arity+1); while (arity--) { @@ -2547,15 +2565,87 @@ BIF_RETTYPE append_element_2(BIF_ALIST_2) BIF_RET(res); } +BIF_RETTYPE insert_element_3(BIF_ALIST_3) +{ + Eterm* ptr; + Eterm* hp; + Uint arity; + Eterm res; + Sint ix, c1, c2; + + if (is_not_tuple(BIF_ARG_2) || is_not_small(BIF_ARG_1)) { + BIF_ERROR(BIF_P, BADARG); + } + + ptr = tuple_val(BIF_ARG_2); + arity = arityval(*ptr); + ix = signed_val(BIF_ARG_1); + + if ((ix < 1) || (ix > (arity + 1))) { + BIF_ERROR(BIF_P, BADARG); + } + + hp = HAlloc(BIF_P, arity + 1 + 1); + res = make_tuple(hp); + *hp = make_arityval(arity + 1); + + c1 = ix - 1; + c2 = arity - ix + 1; + + while (c1--) { *++hp = *++ptr; } + *++hp = BIF_ARG_3; + while (c2--) { *++hp = *++ptr; } + + BIF_RET(res); +} + +BIF_RETTYPE delete_element_2(BIF_ALIST_3) +{ + Eterm* ptr; + Eterm* hp; + Uint arity; + Eterm res; + Sint ix, c1, c2; + + if (is_not_tuple(BIF_ARG_2) || is_not_small(BIF_ARG_1)) { + BIF_ERROR(BIF_P, BADARG); + } + + ptr = tuple_val(BIF_ARG_2); + arity = arityval(*ptr); + ix = signed_val(BIF_ARG_1); + + if ((ix < 1) || (ix > arity) || (arity == 0)) { + BIF_ERROR(BIF_P, BADARG); + } + + hp = HAlloc(BIF_P, arity + 1 - 1); + res = make_tuple(hp); + *hp = make_arityval(arity - 1); + + c1 = ix - 1; + c2 = arity - ix; + + while (c1--) { *++hp = *++ptr; } + ++ptr; + while (c2--) { *++hp = *++ptr; } + + BIF_RET(res); +} + /**********************************************************************/ /* convert an atom to a list of ascii integer */ BIF_RETTYPE atom_to_list_1(BIF_ALIST_1) { - Uint need; - Eterm* hp; Atom* ap; + Uint num_chars, num_built, num_eaten; + byte* err_pos; + Eterm res; +#ifdef DEBUG + int ares; +#endif if (is_not_atom(BIF_ARG_1)) BIF_ERROR(BIF_P, BADARG); @@ -2564,9 +2654,18 @@ BIF_RETTYPE atom_to_list_1(BIF_ALIST_1) ap = atom_tab(atom_val(BIF_ARG_1)); if (ap->len == 0) BIF_RET(NIL); /* the empty atom */ - need = ap->len*2; - hp = HAlloc(BIF_P, need); - BIF_RET(buf_to_intlist(&hp,(char*)ap->name,ap->len, NIL)); + +#ifdef DEBUG + ares = +#endif + erts_analyze_utf8(ap->name, ap->len, &err_pos, &num_chars, NULL); + ASSERT(ares == ERTS_UTF8_OK); + + res = erts_utf8_to_list(BIF_P, num_chars, ap->name, ap->len, ap->len, + &num_built, &num_eaten, NIL); + ASSERT(num_built == num_chars); + ASSERT(num_eaten == ap->len); + BIF_RET(res); } /**********************************************************************/ @@ -2576,18 +2675,19 @@ BIF_RETTYPE atom_to_list_1(BIF_ALIST_1) BIF_RETTYPE list_to_atom_1(BIF_ALIST_1) { Eterm res; - char *buf = (char *) erts_alloc(ERTS_ALC_T_TMP, MAX_ATOM_LENGTH); - int i = intlist_to_buf(BIF_ARG_1, buf, MAX_ATOM_LENGTH); + char *buf = (char *) erts_alloc(ERTS_ALC_T_TMP, MAX_ATOM_CHARACTERS); + int i = intlist_to_buf(BIF_ARG_1, buf, MAX_ATOM_CHARACTERS); if (i < 0) { erts_free(ERTS_ALC_T_TMP, (void *) buf); - i = list_length(BIF_ARG_1); - if (i > MAX_ATOM_LENGTH) { + i = erts_list_length(BIF_ARG_1); + if (i > MAX_ATOM_CHARACTERS) { BIF_ERROR(BIF_P, SYSTEM_LIMIT); } BIF_ERROR(BIF_P, BADARG); } - res = am_atom_put(buf, i); + res = erts_atom_put((byte *) buf, i, ERTS_ATOM_ENC_LATIN1, 1); + ASSERT(is_atom(res)); erts_free(ERTS_ALC_T_TMP, (void *) buf); BIF_RET(res); } @@ -2597,16 +2697,16 @@ BIF_RETTYPE list_to_atom_1(BIF_ALIST_1) BIF_RETTYPE list_to_existing_atom_1(BIF_ALIST_1) { int i; - char *buf = (char *) erts_alloc(ERTS_ALC_T_TMP, MAX_ATOM_LENGTH); + char *buf = (char *) erts_alloc(ERTS_ALC_T_TMP, MAX_ATOM_CHARACTERS); - if ((i = intlist_to_buf(BIF_ARG_1, buf, MAX_ATOM_LENGTH)) < 0) { + if ((i = intlist_to_buf(BIF_ARG_1, buf, MAX_ATOM_CHARACTERS)) < 0) { error: erts_free(ERTS_ALC_T_TMP, (void *) buf); BIF_ERROR(BIF_P, BADARG); } else { Eterm a; - if (erts_atom_get(buf, i, &a)) { + if (erts_atom_get(buf, i, &a, ERTS_ATOM_ENC_LATIN1)) { erts_free(ERTS_ALC_T_TMP, (void *) buf); BIF_RET(a); } else { @@ -2831,42 +2931,168 @@ BIF_RETTYPE string_to_integer_1(BIF_ALIST_1) BIF_RET(TUPLE2(hp, res, tail)); } } - BIF_RETTYPE list_to_integer_1(BIF_ALIST_1) -{ + { + /* Using do_list_to_integer is about twice as fast as using + erts_chars_to_integer because we do not have to copy the + entire list */ Eterm res; Eterm dummy; /* must be a list */ - if (do_list_to_integer(BIF_P,BIF_ARG_1,&res,&dummy) != LTI_ALL_INTEGER) { BIF_ERROR(BIF_P,BADARG); } BIF_RET(res); } +BIF_RETTYPE list_to_integer_2(BIF_ALIST_2) +{ + + /* Bif implementation is about 50% faster than pure erlang, + and since we have erts_chars_to_integer now it is simpler + as well. This could be optmized further if we did not have to + copy the list to buf. */ + int i; + Eterm res; + char *buf = NULL; + int base; + + i = erts_list_length(BIF_ARG_1); + if (i < 0) + BIF_ERROR(BIF_P, BADARG); + + base = signed_val(BIF_ARG_2); + + if (base < 2 || base > 36) + BIF_ERROR(BIF_P, BADARG); + + /* Take fast path if base it 10 */ + if (base == 10) + return list_to_integer_1(BIF_P,&BIF_ARG_1); + + buf = (char *) erts_alloc(ERTS_ALC_T_TMP, i + 1); + + if (intlist_to_buf(BIF_ARG_1, buf, i) < 0) + goto list_to_integer_1_error; + buf[i] = '\0'; /* null terminal */ + + if ((res = erts_chars_to_integer(BIF_P,buf,i,base)) == THE_NON_VALUE) + goto list_to_integer_1_error; + + erts_free(ERTS_ALC_T_TMP, (void *) buf); + BIF_RET(res); + + list_to_integer_1_error: + erts_free(ERTS_ALC_T_TMP, (void *) buf); + BIF_ERROR(BIF_P, BADARG); + + } + /**********************************************************************/ +static int do_float_to_charbuf(Process *p, Eterm efloat, Eterm list, + char *fbuf, int sizeof_fbuf) { + + const static int arity_two = make_arityval(2); + int decimals = SYS_DEFAULT_FLOAT_DECIMALS; + int compact = 0; + enum fmt_type_ { + FMT_LEGACY, + FMT_FIXED, + FMT_SCIENTIFIC + } fmt_type = FMT_LEGACY; + Eterm arg; + FloatDef f; + + /* check the arguments */ + if (is_not_float(efloat)) + goto badarg; + + for(; is_list(list); list = CDR(list_val(list))) { + arg = CAR(list_val(list)); + if (arg == am_compact) { + compact = 1; + continue; + } else if (is_tuple(arg)) { + Eterm* tp = tuple_val(arg); + if (*tp == arity_two && is_small(tp[2])) { + decimals = signed_val(tp[2]); + switch (tp[1]) { + case am_decimals: + fmt_type = FMT_FIXED; + continue; + case am_scientific: + fmt_type = FMT_SCIENTIFIC; + continue; + } + } + } + goto badarg; + } + if (is_not_nil(list)) { + goto badarg; + } + + GET_DOUBLE(efloat, f); + + if (fmt_type == FMT_FIXED) { + return sys_double_to_chars_fast(f.fd, fbuf, sizeof_fbuf, + decimals, compact); + } else { + return sys_double_to_chars_ext(f.fd, fbuf, sizeof_fbuf, decimals); + } + +badarg: + return -1; +} + /* convert a float to a list of ascii characters */ +static BIF_RETTYPE do_float_to_list(Process *BIF_P, Eterm arg, Eterm opts) { + int used; + Eterm* hp; + char fbuf[256]; + + if ((used = do_float_to_charbuf(BIF_P,arg,opts,fbuf,sizeof(fbuf))) <= 0) { + BIF_ERROR(BIF_P, BADARG); + } + hp = HAlloc(BIF_P, (Uint)used*2); + BIF_RET(buf_to_intlist(&hp, fbuf, (Uint)used, NIL)); +} + + BIF_RETTYPE float_to_list_1(BIF_ALIST_1) { - int i; - Uint need; - Eterm* hp; - FloatDef f; - char fbuf[30]; - - /* check the arguments */ - if (is_not_float(BIF_ARG_1)) - BIF_ERROR(BIF_P, BADARG); - GET_DOUBLE(BIF_ARG_1, f); - if ((i = sys_double_to_chars(f.fd, fbuf)) <= 0) - BIF_ERROR(BIF_P, EXC_INTERNAL_ERROR); - need = i*2; - hp = HAlloc(BIF_P, need); - BIF_RET(buf_to_intlist(&hp, fbuf, i, NIL)); - } + return do_float_to_list(BIF_P,BIF_ARG_1,NIL); +} + +BIF_RETTYPE float_to_list_2(BIF_ALIST_2) +{ + return do_float_to_list(BIF_P,BIF_ARG_1,BIF_ARG_2); +} + +/* convert a float to a binary of ascii characters */ + +static BIF_RETTYPE do_float_to_binary(Process *BIF_P, Eterm arg, Eterm opts) { + int used; + char fbuf[256]; + + if ((used = do_float_to_charbuf(BIF_P,arg,opts,fbuf,sizeof(fbuf))) <= 0) { + BIF_ERROR(BIF_P, BADARG); + } + BIF_RET(new_binary(BIF_P, (byte*)fbuf, (Uint)used)); +} + +BIF_RETTYPE float_to_binary_1(BIF_ALIST_1) +{ + return do_float_to_binary(BIF_P,BIF_ARG_1,NIL); +} + +BIF_RETTYPE float_to_binary_2(BIF_ALIST_2) +{ + return do_float_to_binary(BIF_P,BIF_ARG_1,BIF_ARG_2); +} /**********************************************************************/ @@ -3050,36 +3276,101 @@ BIF_RETTYPE string_to_float_1(BIF_ALIST_1) BIF_RET(tup); } +static BIF_RETTYPE do_charbuf_to_float(Process *BIF_P,char *buf) { + FloatDef f; + Eterm res; + Eterm* hp; + + if (sys_chars_to_double(buf, &f.fd) != 0) + BIF_ERROR(BIF_P, BADARG); + + hp = HAlloc(BIF_P, FLOAT_SIZE_OBJECT); + res = make_float(hp); + PUT_DOUBLE(f, hp); + BIF_RET(res); + +} BIF_RETTYPE list_to_float_1(BIF_ALIST_1) { int i; - FloatDef f; Eterm res; - Eterm* hp; char *buf = NULL; - i = list_length(BIF_ARG_1); - if (i < 0) { - badarg: - if (buf) - erts_free(ERTS_ALC_T_TMP, (void *) buf); - BIF_ERROR(BIF_P, BADARG); - } - + i = erts_list_length(BIF_ARG_1); + if (i < 0) + BIF_ERROR(BIF_P, BADARG); + buf = (char *) erts_alloc(ERTS_ALC_T_TMP, i + 1); if (intlist_to_buf(BIF_ARG_1, buf, i) < 0) - goto badarg; + goto list_to_float_1_error; buf[i] = '\0'; /* null terminal */ + + if ((res = do_charbuf_to_float(BIF_P,buf)) == THE_NON_VALUE) + goto list_to_float_1_error; + + erts_free(ERTS_ALC_T_TMP, (void *) buf); + BIF_RET(res); + + list_to_float_1_error: + erts_free(ERTS_ALC_T_TMP, (void *) buf); + BIF_ERROR(BIF_P, BADARG); + +} + +BIF_RETTYPE binary_to_float_1(BIF_ALIST_1) +{ + Eterm res; + Eterm binary = BIF_ARG_1; + Sint size; + byte* bytes, *buf; + Eterm* real_bin; + Uint offs = 0; + Uint bit_offs = 0; + + if (is_not_binary(binary) || (size = binary_size(binary)) == 0) + BIF_ERROR(BIF_P, BADARG); + + /* + * Unfortunately we have to copy the binary because we have to insert + * the '\0' at the end of the binary for strtod to work + * (there is no nstrtod :( ) + */ + + buf = erts_alloc(ERTS_ALC_T_TMP, size + 1); + + real_bin = binary_val(binary); + if (*real_bin == HEADER_SUB_BIN) { + ErlSubBin* sb = (ErlSubBin *) real_bin; + if (sb->bitsize) { + goto binary_to_float_1_error; + } + offs = sb->offs; + bit_offs = sb->bitoffs; + real_bin = binary_val(sb->orig); + } + if (*real_bin == HEADER_PROC_BIN) { + bytes = ((ProcBin *) real_bin)->bytes + offs; + } else { + bytes = (byte *)(&(((ErlHeapBin *) real_bin)->data)) + offs; + } + if (bit_offs) + erts_copy_bits(bytes, bit_offs, 1, buf, 0, 1, size*8); + else + memcpy(buf, bytes, size); + + buf[size] = '\0'; + + if ((res = do_charbuf_to_float(BIF_P,(char*)buf)) == THE_NON_VALUE) + goto binary_to_float_1_error; - if (sys_chars_to_double(buf, &f.fd) != 0) - goto badarg; - hp = HAlloc(BIF_P, FLOAT_SIZE_OBJECT); - res = make_float(hp); - PUT_DOUBLE(f, hp); erts_free(ERTS_ALC_T_TMP, (void *) buf); BIF_RET(res); + + binary_to_float_1_error: + erts_free(ERTS_ALC_T_TMP, (void *) buf); + BIF_ERROR(BIF_P, BADARG); } /**********************************************************************/ @@ -3121,7 +3412,7 @@ BIF_RETTYPE list_to_tuple_1(BIF_ALIST_1) Eterm* hp; int len; - if ((len = list_length(list)) < 0) { + if ((len = erts_list_length(list)) < 0 || len > ERTS_MAX_TUPLE_SIZE) { BIF_ERROR(BIF_P, BADARG); } @@ -3143,7 +3434,7 @@ BIF_RETTYPE list_to_tuple_1(BIF_ALIST_1) BIF_RETTYPE self_0(BIF_ALIST_0) { - BIF_RET(BIF_P->id); + BIF_RET(BIF_P->common.id); } /**********************************************************************/ @@ -3180,11 +3471,9 @@ static erts_smp_spinlock_t make_ref_lock; static erts_smp_mtx_t ports_snapshot_mtx; erts_smp_atomic_t erts_dead_ports_ptr; /* To store dying ports during snapshot */ -Eterm erts_make_ref_in_buffer(Eterm buffer[REF_THING_SIZE]) +void +erts_make_ref_in_array(Uint32 ref[ERTS_MAX_REF_NUMBERS]) { - Eterm* hp = buffer; - Uint32 ref0, ref1, ref2; - erts_smp_spin_lock(&make_ref_lock); reference0++; @@ -3196,24 +3485,36 @@ Eterm erts_make_ref_in_buffer(Eterm buffer[REF_THING_SIZE]) } } - ref0 = reference0; - ref1 = reference1; - ref2 = reference2; + ref[0] = reference0; + ref[1] = reference1; + ref[2] = reference2; erts_smp_spin_unlock(&make_ref_lock); +} - write_ref_thing(hp, ref0, ref1, ref2); +Eterm erts_make_ref_in_buffer(Eterm buffer[REF_THING_SIZE]) +{ + Eterm* hp = buffer; + Uint32 ref[ERTS_MAX_REF_NUMBERS]; + + erts_make_ref_in_array(ref); + write_ref_thing(hp, ref[0], ref[1], ref[2]); return make_internal_ref(hp); } Eterm erts_make_ref(Process *p) { Eterm* hp; + Uint32 ref[ERTS_MAX_REF_NUMBERS]; ERTS_SMP_LC_ASSERT(ERTS_PROC_LOCK_MAIN & erts_proc_lc_my_proc_locks(p)); hp = HAlloc(p, REF_THING_SIZE); - return erts_make_ref_in_buffer(hp); + + erts_make_ref_in_array(ref); + write_ref_thing(hp, ref[0], ref[1], ref[2]); + + return make_internal_ref(hp); } BIF_RETTYPE make_ref_0(BIF_ALIST_0) @@ -3468,45 +3769,6 @@ BIF_RETTYPE now_0(BIF_ALIST_0) /**********************************************************************/ -BIF_RETTYPE garbage_collect_1(BIF_ALIST_1) -{ - int reds; - Process *rp; - - if (is_not_pid(BIF_ARG_1)) { - BIF_ERROR(BIF_P, BADARG); - } - - if (BIF_P->id == BIF_ARG_1) - rp = BIF_P; - else { -#ifdef ERTS_SMP - rp = erts_pid2proc_suspend(BIF_P, ERTS_PROC_LOCK_MAIN, - BIF_ARG_1, ERTS_PROC_LOCK_MAIN); - if (rp == ERTS_PROC_LOCK_BUSY) - ERTS_BIF_YIELD1(bif_export[BIF_garbage_collect_1], BIF_P, BIF_ARG_1); -#else - rp = erts_pid2proc(BIF_P, 0, BIF_ARG_1, 0); -#endif - if (!rp) - BIF_RET(am_false); - } - - /* The GC cost is taken for the process executing this BIF. */ - - FLAGS(rp) |= F_NEED_FULLSWEEP; - reds = erts_garbage_collect(rp, 0, rp->arg_reg, rp->arity); - -#ifdef ERTS_SMP - if (BIF_P != rp) { - erts_resume(rp, ERTS_PROC_LOCK_MAIN); - erts_smp_proc_unlock(rp, ERTS_PROC_LOCK_MAIN); - } -#endif - - BIF_RET2(am_true, reds); -} - BIF_RETTYPE garbage_collect_0(BIF_ALIST_0) { int reds; @@ -3517,71 +3779,23 @@ BIF_RETTYPE garbage_collect_0(BIF_ALIST_0) } /**********************************************************************/ -/* Return a list of active ports */ +/* + * The erlang:processes/0 BIF. + */ -BIF_RETTYPE ports_0(BIF_ALIST_0) +BIF_RETTYPE processes_0(BIF_ALIST_0) { - Eterm res = NIL; - Eterm* port_buf = erts_alloc(ERTS_ALC_T_TMP, - sizeof(Eterm)*erts_max_ports); - Eterm* pp = port_buf; - Eterm* dead_ports; - int alive, dead; - Uint32 next_ss; - int i; - - /* To get a consistent snapshot... - * We add alive ports from start of the buffer - * while dying ports are added from the other end by the killing threads. - */ - - erts_smp_mtx_lock(&ports_snapshot_mtx); /* One snapshot at a time */ - - erts_smp_atomic_set_nob(&erts_dead_ports_ptr, - (erts_aint_t) (port_buf + erts_max_ports)); - - next_ss = erts_smp_atomic32_inc_read_relb(&erts_ports_snapshot); - - for (i = erts_max_ports-1; i >= 0; i--) { - Port* prt = &erts_port[i]; - erts_smp_port_state_lock(prt); - if (!(prt->status & ERTS_PORT_SFLGS_DEAD) - && prt->snapshot != next_ss) { - ASSERT(prt->snapshot == next_ss - 1); - *pp++ = prt->id; - prt->snapshot = next_ss; /* Consumed by this snapshot */ - } - erts_smp_port_state_unlock(prt); - } - - dead_ports = (Eterm*)erts_smp_atomic_xchg_nob(&erts_dead_ports_ptr, - (erts_aint_t) NULL); - erts_smp_mtx_unlock(&ports_snapshot_mtx); - - ASSERT(pp <= dead_ports); - - alive = pp - port_buf; - dead = port_buf + erts_max_ports - dead_ports; - - ASSERT((alive+dead) <= erts_max_ports); - - if (alive+dead > 0) { - erts_aint_t i; - Eterm *hp = HAlloc(BIF_P, (alive+dead)*2); - - for (i = 0; i < alive; i++) { - res = CONS(hp, port_buf[i], res); - hp += 2; - } - for (i = 0; i < dead; i++) { - res = CONS(hp, dead_ports[i], res); - hp += 2; - } - } + return erts_ptab_list(BIF_P, &erts_proc); +} - erts_free(ERTS_ALC_T_TMP, port_buf); +/**********************************************************************/ +/* + * The erlang:ports/0 BIF. + */ - BIF_RET(res); +BIF_RETTYPE ports_0(BIF_ALIST_0) +{ + return erts_ptab_list(BIF_P, &erts_port); } /**********************************************************************/ @@ -3709,7 +3923,7 @@ BIF_RETTYPE halt_2(BIF_ALIST_2) { Sint code; Eterm optlist = BIF_ARG_2; - int flush = 0; + int flush = 1; for (optlist = BIF_ARG_2; is_list(optlist); @@ -3780,7 +3994,8 @@ BIF_RETTYPE function_exported_3(BIF_ALIST_3) is_not_small(BIF_ARG_3)) { BIF_ERROR(BIF_P, BADARG); } - if (erts_find_function(BIF_ARG_1, BIF_ARG_2, signed_val(BIF_ARG_3)) == NULL) { + if (erts_find_function(BIF_ARG_1, BIF_ARG_2, signed_val(BIF_ARG_3), + erts_active_code_ix()) == NULL) { BIF_RET(am_false); } BIF_RET(am_true); @@ -4123,7 +4338,11 @@ BIF_RETTYPE system_flag_2(BIF_ALIST_2) switch (erts_set_schedulers_online(BIF_P, ERTS_PROC_LOCK_MAIN, signed_val(BIF_ARG_2), - &old_no)) { + &old_no +#ifdef ERTS_DIRTY_SCHEDULERS + , 0 +#endif + )) { case ERTS_SCHDLR_SSPND_DONE: BIF_RET(make_small(old_no)); case ERTS_SCHDLR_SSPND_YIELD_RESTART: @@ -4210,14 +4429,15 @@ BIF_RETTYPE system_flag_2(BIF_ALIST_2) BIF_RET(old_value); } } else if (BIF_ARG_1 == make_small(1)) { - Uint i; + int i, max; ErlMessage* mp; erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCK_MAIN); erts_smp_thr_progress_block(); - for (i = 0; i < erts_max_processes; i++) { - if (process_tab[i] != (Process*) 0) { - Process* p = process_tab[i]; + max = erts_ptab_max(&erts_proc); + for (i = 0; i < max; i++) { + Process *p = erts_pix2proc(i); + if (p) { #ifdef USE_VM_PROBES p->seq_trace_token = (p->dt_utag != NIL) ? am_have_dt_utag : NIL; #else @@ -4254,6 +4474,33 @@ BIF_RETTYPE system_flag_2(BIF_ALIST_2) ref, old ? am_true : am_false); } +#if defined(ERTS_SMP) && defined(ERTS_DIRTY_SCHEDULERS) + } else if (BIF_ARG_1 == am_dirty_cpu_schedulers_online) { + Sint old_no; + if (!is_small(BIF_ARG_2)) + goto error; + switch (erts_set_schedulers_online(BIF_P, + ERTS_PROC_LOCK_MAIN, + signed_val(BIF_ARG_2), + &old_no, + 1)) { + case ERTS_SCHDLR_SSPND_DONE: + BIF_RET(make_small(old_no)); + case ERTS_SCHDLR_SSPND_YIELD_RESTART: + ERTS_VBUMP_ALL_REDS(BIF_P); + BIF_TRAP2(bif_export[BIF_system_flag_2], + BIF_P, BIF_ARG_1, BIF_ARG_2); + case ERTS_SCHDLR_SSPND_YIELD_DONE: + ERTS_BIF_YIELD_RETURN_X(BIF_P, make_small(old_no), + am_dirty_cpu_schedulers_online); + case ERTS_SCHDLR_SSPND_EINVAL: + goto error; + default: + ASSERT(0); + BIF_ERROR(BIF_P, EXC_INTERNAL_ERROR); + break; + } +#endif } else if (ERTS_IS_ATOM_STR("scheduling_statistics", BIF_ARG_1)) { int what; if (ERTS_IS_ATOM_STR("disable", BIF_ARG_2)) @@ -4277,7 +4524,7 @@ BIF_RETTYPE system_flag_2(BIF_ALIST_2) BIF_P->group_leader, "A call to erlang:system_flag(cpu_topology, _) was made.\n" "The cpu_topology argument is deprecated and scheduled\n" - "for removal in erts-5.10/OTP-R16. For more information\n" + "for removal in Erlang/OTP 18. For more information\n" "see the erlang:system_flag/2 documentation.\n"); BIF_TRAP1(set_cpu_topology_trap, BIF_P, BIF_ARG_2); } else if (ERTS_IS_ATOM_STR("scheduler_bind_type", BIF_ARG_1)) { @@ -4285,7 +4532,7 @@ BIF_RETTYPE system_flag_2(BIF_ALIST_2) BIF_P->group_leader, "A call to erlang:system_flag(scheduler_bind_type, _) was\n" "made. The scheduler_bind_type argument is deprecated and\n" - "scheduled for removal in erts-5.10/OTP-R16. For more\n" + "scheduled for removal in Erlang/OTP 18. For more\n" "information see the erlang:system_flag/2 documentation.\n"); return erts_bind_schedulers(BIF_P, BIF_ARG_2); } @@ -4404,6 +4651,17 @@ BIF_RETTYPE bump_reductions_1(BIF_ALIST_1) BIF_RET2(am_true, reds); } +BIF_RETTYPE erts_internal_cmp_term_2(BIF_ALIST_2) { + int res = CMP_TERM(BIF_ARG_1,BIF_ARG_2); + + /* ensure -1, 0, 1 result */ + if (res < 0) { + BIF_RET(make_small(-1)); + } else if (res > 0) { + BIF_RET(make_small(1)); + } + BIF_RET(make_small(0)); +} /* * Processes doing yield on return in a bif ends up in bif_return_trap(). */ @@ -4513,6 +4771,21 @@ erts_bif_prep_await_proc_exit_apply_trap(Process *c_p, Export bif_return_trap_export; +void erts_init_trap_export(Export* ep, Eterm m, Eterm f, Uint a, + Eterm (*bif)(BIF_ALIST_0)) +{ + int i; + sys_memset((void *) ep, 0, sizeof(Export)); + for (i=0; i<ERTS_NUM_CODE_IX; i++) { + ep->addressv[i] = &ep->code[3]; + } + ep->code[0] = m; + ep->code[1] = f; + ep->code[2] = a; + ep->code[3] = (BeamInstr) em_apply_bif; + ep->code[4] = (BeamInstr) bif; +} + void erts_init_bif(void) { reference0 = 0; @@ -4528,17 +4801,13 @@ void erts_init_bif(void) * yield the calling process traps to. The only thing it does: * return the value passed as argument. */ - sys_memset((void *) &bif_return_trap_export, 0, sizeof(Export)); - bif_return_trap_export.address = &bif_return_trap_export.code[3]; - bif_return_trap_export.code[0] = am_erlang; - bif_return_trap_export.code[1] = am_bif_return_trap; + erts_init_trap_export(&bif_return_trap_export, am_erlang, am_bif_return_trap, #ifdef DEBUG - bif_return_trap_export.code[2] = 2; + 2 #else - bif_return_trap_export.code[2] = 1; + 1 #endif - bif_return_trap_export.code[3] = (BeamInstr) em_apply_bif; - bif_return_trap_export.code[4] = (BeamInstr) &bif_return_trap; + , &bif_return_trap); flush_monitor_message_trap = erts_export_put(am_erlang, am_flush_monitor_message, @@ -4551,6 +4820,8 @@ void erts_init_bif(void) am_format_cpu_topology, 1); await_proc_exit_trap = erts_export_put(am_erlang,am_await_proc_exit,3); + await_port_send_result_trap + = erts_export_put(am_erts_internal, am_await_port_send_result, 3); await_sched_wall_time_mod_trap = erts_export_put(am_erlang, am_await_sched_wall_time_modifications, 2); erts_smp_atomic32_init_nob(&sched_wall_time, 0); @@ -4566,19 +4837,18 @@ bif erlang:send_to_logger/2 BIF_RETTYPE send_to_logger_2(BIF_ALIST_2) { byte *buf; - int len; + ErlDrvSizeT len; if (!is_atom(BIF_ARG_1) || !(is_list(BIF_ARG_2) || is_nil(BIF_ARG_1))) { BIF_ERROR(BIF_P,BADARG); } - len = io_list_len(BIF_ARG_2); - if (len < 0) + if (erts_iolist_size(BIF_ARG_2, &len) != 0) BIF_ERROR(BIF_P,BADARG); else if (len == 0) buf = ""; else { #ifdef DEBUG - int len2; + ErlDrvSizeT len2; #endif buf = (byte *) erts_alloc(ERTS_ALC_T_TMP, len+1); #ifdef DEBUG @@ -4586,7 +4856,7 @@ BIF_RETTYPE send_to_logger_2(BIF_ALIST_2) #else (void) #endif - io_list_to_buf(BIF_ARG_2, buf, len); + erts_iolist_to_buf(BIF_ARG_2, buf, len); ASSERT(len2 == len); buf[len] = '\0'; switch (BIF_ARG_1) { @@ -4680,7 +4950,6 @@ BIF_RETTYPE dt_prepend_vm_tag_data_1(BIF_ALIST_1) #ifdef USE_VM_PROBES Eterm b; Eterm *hp; - hp = HAlloc(BIF_P,2); if (is_binary((DT_UTAG(BIF_P)))) { Uint sz = binary_size(DT_UTAG(BIF_P)); int i; @@ -4697,6 +4966,7 @@ BIF_RETTYPE dt_prepend_vm_tag_data_1(BIF_ALIST_1) } else { b = new_binary(BIF_P,(byte *)"\0",1); } + hp = HAlloc(BIF_P,2); BIF_RET(CONS(hp,b,BIF_ARG_1)); #else BIF_RET(BIF_ARG_1); @@ -4707,7 +4977,6 @@ BIF_RETTYPE dt_append_vm_tag_data_1(BIF_ALIST_1) #ifdef USE_VM_PROBES Eterm b; Eterm *hp; - hp = HAlloc(BIF_P,2); if (is_binary((DT_UTAG(BIF_P)))) { Uint sz = binary_size(DT_UTAG(BIF_P)); int i; @@ -4724,6 +4993,7 @@ BIF_RETTYPE dt_append_vm_tag_data_1(BIF_ALIST_1) } else { b = new_binary(BIF_P,(byte *)"\0",1); } + hp = HAlloc(BIF_P,2); BIF_RET(CONS(hp,BIF_ARG_1,b)); #else BIF_RET(BIF_ARG_1); @@ -4747,14 +5017,14 @@ BIF_RETTYPE dt_spread_tag_1(BIF_ALIST_1) #ifdef DTRACE_TAG_HARDDEBUG erts_fprintf(stderr, "Dtrace -> (%T) start spreading tag %T\r\n", - BIF_P->id,DT_UTAG(BIF_P)); + BIF_P->common.id,DT_UTAG(BIF_P)); #endif } else { DT_UTAG_FLAGS(BIF_P) &= ~DT_UTAG_SPREADING; #ifdef DTRACE_TAG_HARDDEBUG erts_fprintf(stderr, "Dtrace -> (%T) stop spreading tag %T\r\n", - BIF_P->id,DT_UTAG(BIF_P)); + BIF_P->common.id,DT_UTAG(BIF_P)); #endif } } @@ -4780,7 +5050,7 @@ BIF_RETTYPE dt_restore_tag_1(BIF_ALIST_1) #ifdef DTRACE_TAG_HARDDEBUG erts_fprintf(stderr, "Dtrace -> (%T) restore Killing tag!\r\n", - BIF_P->id); + BIF_P->common.id); #endif } DT_UTAG(BIF_P) = NIL; @@ -4797,12 +5067,12 @@ BIF_RETTYPE dt_restore_tag_1(BIF_ALIST_1) erts_fprintf(stderr, "Dtrace -> (%T) restore stop spreading " "tag %T\r\n", - BIF_P->id, tpl[2]); + BIF_P->common.id, tpl[2]); } else if ((x & DT_UTAG_SPREADING) && !(DT_UTAG_FLAGS(BIF_P) & DT_UTAG_SPREADING)) { erts_fprintf(stderr, "Dtrace -> (%T) restore start spreading " - "tag %T\r\n",BIF_P->id,tpl[2]); + "tag %T\r\n",BIF_P->common.id,tpl[2]); } #endif DT_UTAG_FLAGS(BIF_P) = x; diff --git a/erts/emulator/beam/bif.h b/erts/emulator/beam/bif.h index d20089a9fb..72c55ccb55 100644 --- a/erts/emulator/beam/bif.h +++ b/erts/emulator/beam/bif.h @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 1996-2011. All Rights Reserved. + * Copyright Ericsson AB 1996-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -35,6 +35,13 @@ extern Export* erts_format_cpu_topology_trap; #define BIF_ARG_2 (BIF__ARGS[1]) #define BIF_ARG_3 (BIF__ARGS[2]) +#define ERTS_IS_PROC_OUT_OF_REDS(p) \ + ((p)->fcalls > 0 \ + ? 0 \ + : (!ERTS_PROC_GET_SAVED_CALLS_BUF((p)) \ + ? (p)->fcalls == 0 \ + : ((p)->fcalls == -CONTEXT_REDS))) + #define BUMP_ALL_REDS(p) do { \ if (!ERTS_PROC_GET_SAVED_CALLS_BUF((p))) \ (p)->fcalls = 0; \ @@ -59,6 +66,8 @@ do { \ } while(0) #define BUMP_REDS(p, gc) do { \ + ASSERT(p); \ + ERTS_SMP_LC_ASSERT(ERTS_PROC_LOCK_MAIN & erts_proc_lc_my_proc_locks(p));\ (p)->fcalls -= (gc); \ if ((p)->fcalls < 0) { \ if (!ERTS_PROC_GET_SAVED_CALLS_BUF((p))) \ @@ -115,17 +124,90 @@ do { \ return THE_NON_VALUE; \ } while(0) +#define ERTS_BIF_ERROR_TRAPPED0(Proc, Reason, Bif) \ +do { \ + (Proc)->freason = (Reason); \ + (Proc)->current = (Bif)->code; \ + return THE_NON_VALUE; \ +} while (0) + +#define ERTS_BIF_ERROR_TRAPPED1(Proc, Reason, Bif, A0) \ +do { \ + Eterm* reg = ERTS_PROC_GET_SCHDATA((Proc))->x_reg_array; \ + (Proc)->freason = (Reason); \ + (Proc)->current = (Bif)->code; \ + reg[0] = (Eterm) (A0); \ + return THE_NON_VALUE; \ +} while (0) + +#define ERTS_BIF_ERROR_TRAPPED2(Proc, Reason, Bif, A0, A1) \ +do { \ + Eterm* reg = ERTS_PROC_GET_SCHDATA((Proc))->x_reg_array; \ + (Proc)->freason = (Reason); \ + (Proc)->current = (Bif)->code; \ + reg[0] = (Eterm) (A0); \ + reg[1] = (Eterm) (A1); \ + return THE_NON_VALUE; \ +} while (0) + +#define ERTS_BIF_ERROR_TRAPPED3(Proc, Reason, Bif, A0, A1, A2) \ +do { \ + Eterm* reg = ERTS_PROC_GET_SCHDATA((Proc))->x_reg_array; \ + (Proc)->freason = (Reason); \ + (Proc)->current = (Bif)->code; \ + reg[0] = (Eterm) (A0); \ + reg[1] = (Eterm) (A1); \ + reg[2] = (Eterm) (A2); \ + return THE_NON_VALUE; \ +} while (0) + #define ERTS_BIF_PREP_ERROR(Ret, Proc, Reason) \ do { \ (Proc)->freason = (Reason); \ (Ret) = THE_NON_VALUE; \ } while (0) +#define ERTS_BIF_PREP_ERROR_TRAPPED0(Ret, Proc, Reason, Bif) \ +do { \ + (Proc)->freason = (Reason); \ + (Proc)->current = (Bif)->code; \ + (Ret) = THE_NON_VALUE; \ +} while (0) + +#define ERTS_BIF_PREP_ERROR_TRAPPED1(Ret, Proc, Reason, Bif, A0) \ +do { \ + Eterm* reg = ERTS_PROC_GET_SCHDATA((Proc))->x_reg_array; \ + (Proc)->freason = (Reason); \ + (Proc)->current = (Bif)->code; \ + reg[0] = (Eterm) (A0); \ + (Ret) = THE_NON_VALUE; \ +} while (0) + +#define ERTS_BIF_PREP_ERROR_TRAPPED2(Ret, Proc, Reason, Bif, A0, A1) \ +do { \ + Eterm* reg = ERTS_PROC_GET_SCHDATA((Proc))->x_reg_array; \ + (Proc)->freason = (Reason); \ + (Proc)->current = (Bif)->code; \ + reg[0] = (Eterm) (A0); \ + reg[1] = (Eterm) (A1); \ + (Ret) = THE_NON_VALUE; \ +} while (0) + +#define ERTS_BIF_PREP_ERROR_TRAPPED3(Ret, Proc, Reason, Bif, A0, A1, A2) \ +do { \ + Eterm* reg = ERTS_PROC_GET_SCHDATA((Proc))->x_reg_array; \ + (Proc)->freason = (Reason); \ + (Proc)->current = (Bif)->code; \ + reg[0] = (Eterm) (A0); \ + reg[1] = (Eterm) (A1); \ + reg[2] = (Eterm) (A2); \ + (Ret) = THE_NON_VALUE; \ +} while (0) #define ERTS_BIF_PREP_TRAP0(Ret, Trap, Proc) \ do { \ (Proc)->arity = 0; \ - (Proc)->i = (BeamInstr*) ((Trap)->address); \ + (Proc)->i = (BeamInstr*) ((Trap)->addressv[erts_active_code_ix()]); \ (Proc)->freason = TRAP; \ (Ret) = THE_NON_VALUE; \ } while (0) @@ -135,7 +217,7 @@ do { \ Eterm* reg = ERTS_PROC_GET_SCHDATA((Proc))->x_reg_array; \ (Proc)->arity = 1; \ reg[0] = (Eterm) (A0); \ - (Proc)->i = (BeamInstr*) ((Trap)->address); \ + (Proc)->i = (BeamInstr*) ((Trap)->addressv[erts_active_code_ix()]); \ (Proc)->freason = TRAP; \ (Ret) = THE_NON_VALUE; \ } while (0) @@ -146,7 +228,7 @@ do { \ (Proc)->arity = 2; \ reg[0] = (Eterm) (A0); \ reg[1] = (Eterm) (A1); \ - (Proc)->i = (BeamInstr*) ((Trap)->address); \ + (Proc)->i = (BeamInstr*) ((Trap)->addressv[erts_active_code_ix()]); \ (Proc)->freason = TRAP; \ (Ret) = THE_NON_VALUE; \ } while (0) @@ -158,7 +240,7 @@ do { \ reg[0] = (Eterm) (A0); \ reg[1] = (Eterm) (A1); \ reg[2] = (Eterm) (A2); \ - (Proc)->i = (BeamInstr*) ((Trap)->address); \ + (Proc)->i = (BeamInstr*) ((Trap)->addressv[erts_active_code_ix()]); \ (Proc)->freason = TRAP; \ (Ret) = THE_NON_VALUE; \ } while (0) @@ -170,13 +252,13 @@ do { \ reg[0] = (Eterm) (A0); \ reg[1] = (Eterm) (A1); \ reg[2] = (Eterm) (A2); \ - (Proc)->i = (BeamInstr*) ((Trap)->address); \ + (Proc)->i = (BeamInstr*) ((Trap)->addressv[erts_active_code_ix()]); \ (Proc)->freason = TRAP; \ } while (0) #define BIF_TRAP0(p, Trap_) do { \ (p)->arity = 0; \ - (p)->i = (BeamInstr*) ((Trap_)->address); \ + (p)->i = (BeamInstr*) ((Trap_)->addressv[erts_active_code_ix()]); \ (p)->freason = TRAP; \ return THE_NON_VALUE; \ } while(0) @@ -185,7 +267,7 @@ do { \ Eterm* reg = ERTS_PROC_GET_SCHDATA((p))->x_reg_array; \ (p)->arity = 1; \ reg[0] = (A0); \ - (p)->i = (BeamInstr*) ((Trap_)->address); \ + (p)->i = (BeamInstr*) ((Trap_)->addressv[erts_active_code_ix()]); \ (p)->freason = TRAP; \ return THE_NON_VALUE; \ } while(0) @@ -195,7 +277,7 @@ do { \ (p)->arity = 2; \ reg[0] = (A0); \ reg[1] = (A1); \ - (p)->i = (BeamInstr*) ((Trap_)->address); \ + (p)->i = (BeamInstr*) ((Trap_)->addressv[erts_active_code_ix()]); \ (p)->freason = TRAP; \ return THE_NON_VALUE; \ } while(0) @@ -206,7 +288,7 @@ do { \ reg[0] = (A0); \ reg[1] = (A1); \ reg[2] = (A2); \ - (p)->i = (BeamInstr*) ((Trap_)->address); \ + (p)->i = (BeamInstr*) ((Trap_)->addressv[erts_active_code_ix()]); \ (p)->freason = TRAP; \ return THE_NON_VALUE; \ } while(0) @@ -322,27 +404,6 @@ do { \ ERTS_BIF_EXITED((PROC)); \ } while (0) -#ifdef ERTS_SMP -#define ERTS_SMP_BIF_CHK_PENDING_EXIT(P, L) \ -do { \ - ERTS_SMP_LC_ASSERT((L) == erts_proc_lc_my_proc_locks((P))); \ - ERTS_SMP_LC_ASSERT(ERTS_PROC_LOCK_MAIN & (L)); \ - if (!((L) & ERTS_PROC_LOCK_STATUS)) \ - erts_smp_proc_lock((P), ERTS_PROC_LOCK_STATUS); \ - if (ERTS_PROC_PENDING_EXIT((P))) { \ - erts_handle_pending_exit((P), (L)|ERTS_PROC_LOCK_STATUS); \ - erts_smp_proc_unlock((P), \ - (((L)|ERTS_PROC_LOCK_STATUS) \ - & ~ERTS_PROC_LOCK_MAIN)); \ - ERTS_BIF_EXITED((P)); \ - } \ - if (!((L) & ERTS_PROC_LOCK_STATUS)) \ - erts_smp_proc_unlock((P), ERTS_PROC_LOCK_STATUS); \ -} while (0) -#else -#define ERTS_SMP_BIF_CHK_PENDING_EXIT(P, L) -#endif - /* * The ERTS_BIF_*_AWAIT_X_*_TRAP makros either exits the caller, or * sets up a trap to erlang:await_proc_exit/3. @@ -404,6 +465,51 @@ erts_bif_prep_await_proc_exit_apply_trap(Process *c_p, Eterm args[], int nargs); +#ifndef HIPE + +#define HIPE_WRAPPER_BIF_DISABLE_GC(BIF_NAME, ARITY) + +#else + +#include "erl_fun.h" +#include "hipe_mode_switch.h" + +/* + * Hipe wrappers used by native code for BIFs that disable GC while trapping. + * Also add usage of the wrapper in ../hipe/hipe_bif_list.m4 + * + * Problem: + * When native code calls a BIF that traps, hipe_mode_switch will push a + * "trap frame" on the Erlang stack in order to find its way back from beam_emu + * back to native caller when finally done. If GC is disabled and stack/heap + * is full there is no place to push the "trap frame". + * + * Solution: + * We reserve space on stack for the "trap frame" here before the BIF is called. + * If the BIF does not trap, the space is reclaimed here before returning. + * If the BIF traps, hipe_push_beam_trap_frame() will detect that a "trap frame" + * already is reserved and use it. + */ + + +#define HIPE_WRAPPER_BIF_DISABLE_GC(BIF_NAME, ARITY) \ +BIF_RETTYPE hipe_wrapper_ ## BIF_NAME ## _ ## ARITY (Process* c_p, \ + Eterm* args); \ +BIF_RETTYPE hipe_wrapper_ ## BIF_NAME ## _ ## ARITY (Process* c_p, \ + Eterm* args) \ +{ \ + BIF_RETTYPE res; \ + hipe_reserve_beam_trap_frame(c_p, args, ARITY); \ + res = BIF_NAME ## _ ## ARITY (c_p, args); \ + if (is_value(res) || c_p->freason != TRAP) { \ + hipe_unreserve_beam_trap_frame(c_p); \ + } \ + return res; \ +} + +#endif + + #include "erl_bif_table.h" #endif diff --git a/erts/emulator/beam/bif.tab b/erts/emulator/beam/bif.tab index 797bce43ab..011e49f1fe 100644 --- a/erts/emulator/beam/bif.tab +++ b/erts/emulator/beam/bif.tab @@ -1,7 +1,7 @@ # # %CopyrightBegin% # -# Copyright Ericsson AB 1996-2012. All Rights Reserved. +# Copyright Ericsson AB 1996-2013. All Rights Reserved. # # The contents of this file are subject to the Erlang Public License, # Version 1.1, (the "License"); you may not use this file except in @@ -31,434 +31,239 @@ # # Important: Use "ubif" for guard BIFs and operators; use "bif" for ordinary BIFs. # -# Add new BIFs to the end of the file. Do not bother adding a "packaged BIF name" -# (such as 'erl.lang.number'); if/when packages will be supported we will add -# all those names. +# Add new BIFs to the end of the file. # # Note: Guards BIFs require special support in the compiler (to be able to actually # call them from within a guard). # ubif erlang:abs/1 -ubif 'erl.lang.number':abs/1 ebif_abs_1 bif erlang:adler32/1 -bif 'erl.util.crypt.adler32':sum/1 ebif_adler32_1 bif erlang:adler32/2 -bif 'erl.util.crypt.adler32':sum/2 ebif_adler32_2 bif erlang:adler32_combine/3 -bif 'erl.util.crypt.adler32':combine/3 ebif_adler32_combine_3 bif erlang:apply/3 -bif 'erl.lang':apply/3 ebif_apply_3 bif erlang:atom_to_list/1 -bif 'erl.lang.atom':to_string/1 ebif_atom_to_string_1 atom_to_list_1 bif erlang:binary_to_list/1 -bif 'erl.lang.binary':to_list/1 ebif_binary_to_list_1 bif erlang:binary_to_list/3 -bif 'erl.lang.binary':to_list/3 ebif_binary_to_list_3 -bif erlang:binary_to_term/1 -bif 'erl.lang.binary':to_term/1 ebif_binary_to_term_1 -bif erlang:check_process_code/2 -bif 'erl.system.code':check_process/2 ebif_check_process_code_2 +bif erlang:binary_to_term/1 bif erlang:crc32/1 -bif 'erl.util.crypt.crc32':sum/1 ebif_crc32_1 bif erlang:crc32/2 -bif 'erl.util.crypt.crc32':sum/2 ebif_crc32_2 bif erlang:crc32_combine/3 -bif 'erl.util.crypt.crc32':combine/3 ebif_crc32_combine_3 bif erlang:date/0 -bif 'erl.util.date':today/0 ebif_date_0 bif erlang:delete_module/1 -bif 'erl.system.code':delete/1 ebif_delete_module_1 bif erlang:display/1 -bif 'erl.system.debug':display/1 ebif_display_1 bif erlang:display_string/1 -bif 'erl.system.debug':display_string/1 ebif_display_string_1 bif erlang:display_nl/0 -bif 'erl.system.debug':display_nl/0 ebif_display_nl_0 ubif erlang:element/2 -ubif 'erl.lang.tuple':element/2 ebif_element_2 bif erlang:erase/0 -bif 'erl.lang.proc.pdict':erase/0 ebif_erase_0 bif erlang:erase/1 -bif 'erl.lang.proc.pdict':erase/1 ebif_erase_1 bif erlang:exit/1 -bif 'erl.lang':exit/1 ebif_exit_1 bif erlang:exit/2 -bif 'erl.lang.proc':signal/2 ebif_signal_2 exit_2 bif erlang:external_size/1 -bif 'erl.lang.term':external_size/1 ebif_external_size_1 bif erlang:external_size/2 -bif 'erl.lang.term':external_size/2 ebif_external_size_2 ubif erlang:float/1 -ubif 'erl.lang.number':to_float/1 ebif_to_float_1 float_1 bif erlang:float_to_list/1 -bif 'erl.lang.float':to_string/1 ebif_float_to_string_1 float_to_list_1 +bif erlang:float_to_list/2 bif erlang:fun_info/2 -bif 'erl.lang.function':info/2 ebif_fun_info_2 bif erlang:garbage_collect/0 -bif 'erl.system':garbage_collect/0 ebif_garbage_collect_0 -bif erlang:garbage_collect/1 -bif 'erl.system':garbage_collect/1 ebif_garbage_collect_1 bif erlang:get/0 -bif 'erl.lang.proc.pdict':get/0 ebif_get_0 bif erlang:get/1 -bif 'erl.lang.proc.pdict':get/1 ebif_get_1 bif erlang:get_keys/1 -bif 'erl.lang.proc.pdict':get_keys/1 ebif_get_keys_1 bif erlang:group_leader/0 -bif 'erl.lang.proc':group_leader/0 ebif_group_leader_0 bif erlang:group_leader/2 -bif 'erl.lang.proc':set_group_leader/2 ebif_group_leader_2 bif erlang:halt/0 -bif 'erl.lang.system':halt/0 ebif_halt_0 bif erlang:halt/1 -bif 'erl.lang.system':halt/1 ebif_halt_1 bif erlang:halt/2 -bif 'erl.lang.system':halt/2 ebif_halt_2 bif erlang:phash/2 bif erlang:phash2/1 bif erlang:phash2/2 -bif 'erl.lang.term':hash/1 ebif_phash2_1 -bif 'erl.lang.term':hash/2 ebif_phash2_2 ubif erlang:hd/1 -ubif 'erl.lang.list':hd/1 ebif_hd_1 bif erlang:integer_to_list/1 -bif 'erl.lang.integer':to_string/1 ebif_integer_to_string_1 integer_to_list_1 bif erlang:is_alive/0 -bif 'erl.lang.node':is_alive/0 ebif_is_alive_0 ubif erlang:length/1 -ubif 'erl.lang.list':length/1 ebif_length_1 bif erlang:link/1 -bif 'erl.lang.proc':link/1 ebif_link_1 bif erlang:list_to_atom/1 -bif 'erl.lang.atom':from_string/1 ebif_string_to_atom_1 list_to_atom_1 bif erlang:list_to_binary/1 -bif 'erl.lang.binary':from_list/1 ebif_list_to_binary_1 bif erlang:list_to_float/1 -bif 'erl.lang.float':from_string/1 ebif_string_to_float_1 list_to_float_1 bif erlang:list_to_integer/1 -bif 'erl.lang.integer':from_string/1 ebif_string_to_integer_1 list_to_integer_1 bif erlang:list_to_pid/1 -bif 'erl.lang.proc':string_to_pid/1 ebif_string_to_pid_1 list_to_pid_1 bif erlang:list_to_tuple/1 -bif 'erl.lang.tuple':from_list/1 ebif_list_to_tuple_1 -bif erlang:load_module/2 -bif 'erl.system.code':load/2 ebif_load_module_2 bif erlang:loaded/0 -bif 'erl.system.code':loaded/0 ebif_loaded_0 bif erlang:localtime/0 -bif 'erl.util.date':local/0 ebif_localtime_0 bif erlang:localtime_to_universaltime/2 -bif 'erl.util.date':local_to_utc/2 ebif_localtime_to_universaltime_2 bif erlang:make_ref/0 -bif 'erl.lang.ref':new/0 ebif_make_ref_0 bif erlang:md5/1 -bif 'erl.util.crypt.md5':digest/1 ebif_md5_1 bif erlang:md5_init/0 -bif 'erl.util.crypt.md5':init/0 ebif_md5_init_0 bif erlang:md5_update/2 -bif 'erl.util.crypt.md5':update/2 ebif_md5_update_2 bif erlang:md5_final/1 -bif 'erl.util.crypt.md5':final/1 ebif_md5_final_1 bif erlang:module_loaded/1 -bif 'erl.system.code':is_loaded/1 ebif_is_loaded_1 module_loaded_1 bif erlang:function_exported/3 -bif 'erl.system.code':is_loaded/3 ebif_is_loaded_3 function_exported_3 bif erlang:monitor_node/2 -bif 'erl.lang.node':monitor/2 ebif_monitor_node_2 bif erlang:monitor_node/3 -bif 'erl.lang.node':monitor/3 ebif_monitor_node_3 ubif erlang:node/1 -ubif 'erl.lang.node':node/1 ebif_node_1 ubif erlang:node/0 -ubif 'erl.lang.node':node/0 ebif_node_0 bif erlang:nodes/1 -bif 'erl.lang.node':nodes/1 ebif_nodes_1 bif erlang:now/0 -bif 'erl.system':now/0 ebif_now_0 bif erlang:open_port/2 -bif 'erl.lang.port':open/2 ebif_open_port_2 open_port_2 bif erlang:pid_to_list/1 -bif 'erl.lang.proc':pid_to_string/1 ebif_pid_to_string_1 pid_to_list_1 -bif erlang:port_info/1 -bif 'erl.lang.port':info/1 ebif_port_info_1 -bif erlang:port_info/2 -bif 'erl.lang.port':info/2 ebif_port_info_2 bif erlang:ports/0 -bif 'erl.lang.node':ports/0 ebif_ports_0 bif erlang:pre_loaded/0 -bif 'erl.system.code':preloaded/0 ebif_pre_loaded_0 bif erlang:process_flag/2 -bif 'erl.lang.proc':set_flag/2 ebif_process_flag_2 bif erlang:process_flag/3 -bif 'erl.lang.proc':set_flag/3 ebif_process_flag_3 bif erlang:process_info/1 -bif 'erl.lang.proc':info/1 ebif_process_info_1 bif erlang:process_info/2 -bif 'erl.lang.proc':info/2 ebif_process_info_2 bif erlang:processes/0 -bif 'erl.lang.node':processes/0 ebif_processes_0 bif erlang:purge_module/1 -bif 'erl.system.code':purge/1 ebif_purge_module_1 bif erlang:put/2 -bif 'erl.lang.proc.pdict':put/2 ebif_put_2 bif erlang:register/2 -bif 'erl.lang.node':register/2 ebif_register_2 bif erlang:registered/0 -bif 'erl.lang.node':registered/0 ebif_registered_0 ubif erlang:round/1 -ubif 'erl.lang.number':round/1 ebif_round_1 ubif erlang:self/0 -ubif 'erl.lang.proc':self/0 ebif_self_0 bif erlang:setelement/3 -bif 'erl.lang.tuple':setelement/3 ebif_setelement_3 ubif erlang:size/1 -ubif 'erl.lang.term':size/1 ebif_size_1 bif erlang:spawn/3 -bif 'erl.lang.proc':spawn/3 ebif_spawn_3 bif erlang:spawn_link/3 -bif 'erl.lang.proc':spawn_link/3 ebif_spawn_link_3 bif erlang:split_binary/2 -bif 'erl.lang.binary':split/2 ebif_split_binary_2 bif erlang:statistics/1 -bif 'erl.system':statistics/1 ebif_statistics_1 bif erlang:term_to_binary/1 -bif 'erl.lang.binary':from_term/1 ebif_term_to_binary_1 bif erlang:term_to_binary/2 -bif 'erl.lang.binary':from_term/2 ebif_term_to_binary_2 bif erlang:throw/1 -bif 'erl.lang':throw/1 ebif_throw_1 bif erlang:time/0 -bif 'erl.util.date':time_of_day/0 ebif_time_0 ubif erlang:tl/1 -ubif 'erl.lang.list':tl/1 ebif_tl_1 ubif erlang:trunc/1 -ubif 'erl.lang.number':trunc/1 ebif_trunc_1 bif erlang:tuple_to_list/1 -bif 'erl.lang.tuple':to_list/1 ebif_tuple_to_list_1 bif erlang:universaltime/0 -bif 'erl.util.date':utc/0 ebif_universaltime_0 bif erlang:universaltime_to_localtime/1 -bif 'erl.util.date':utc_to_local/1 ebif_universaltime_to_localtime_1 bif erlang:unlink/1 -bif 'erl.lang.proc':unlink/1 ebif_unlink_1 bif erlang:unregister/1 -bif 'erl.lang.node':unregister/1 ebif_unregister_1 bif erlang:whereis/1 -bif 'erl.lang.node':whereis/1 ebif_whereis_1 bif erlang:spawn_opt/1 -bif 'erl.lang.proc':spawn_opt/1 ebif_spawn_opt_1 bif erlang:setnode/2 bif erlang:setnode/3 bif erlang:dist_exit/3 -bif erlang:port_call/2 -bif 'erl.lang.port':call/2 ebif_port_call_2 -bif erlang:port_call/3 -bif 'erl.lang.port':call/3 ebif_port_call_3 -bif erlang:port_command/2 -bif 'erl.lang.port':command/2 ebif_port_command_2 -bif erlang:port_command/3 -bif 'erl.lang.port':command/3 ebif_port_command_3 -bif erlang:port_control/3 -bif 'erl.lang.port':control/3 ebif_port_control_3 -bif erlang:port_close/1 -bif 'erl.lang.port':close/1 ebif_port_close_1 -bif erlang:port_connect/2 -bif 'erl.lang.port':connect/2 ebif_port_connect_2 +# Static native functions in erts_internal +bif erts_internal:port_info/1 +bif erts_internal:port_info/2 +bif erts_internal:port_call/3 +bif erts_internal:port_command/3 +bif erts_internal:port_control/3 +bif erts_internal:port_close/1 +bif erts_internal:port_connect/2 + +bif erts_internal:request_system_task/3 +bif erts_internal:check_process_code/2 + +bif erts_internal:map_to_tuple_keys/1 + +# inet_db support bif erlang:port_set_data/2 -bif 'erl.lang.port':set_data/2 ebif_port_set_data_2 bif erlang:port_get_data/1 -bif 'erl.lang.port':get_data/1 ebif_port_get_data_1 # Tracing & debugging. bif erlang:trace_pattern/2 -bif 'erl.system.debug':trace_pattern/2 ebif_trace_pattern_2 bif erlang:trace_pattern/3 -bif 'erl.system.debug':trace_pattern/3 ebif_trace_pattern_3 bif erlang:trace/3 -bif 'erl.system.debug':trace/3 ebif_trace_3 bif erlang:trace_info/2 -bif 'erl.system.debug':trace_info/2 ebif_trace_info_2 bif erlang:trace_delivered/1 -bif 'erl.system.debug':trace_delivered/1 ebif_trace_delivered_1 bif erlang:seq_trace/2 -bif 'erl.system.debug':seq_trace/2 ebif_seq_trace_2 bif erlang:seq_trace_info/1 -bif 'erl.system.debug':seq_trace_info/1 ebif_seq_trace_info_1 bif erlang:seq_trace_print/1 -bif 'erl.system.debug':seq_trace_print/1 ebif_seq_trace_print_1 bif erlang:seq_trace_print/2 -bif 'erl.system.debug':seq_trace_print/2 ebif_seq_trace_print_2 bif erlang:suspend_process/2 -bif 'erl.system.debug':suspend_process/2 ebif_suspend_process_2 bif erlang:resume_process/1 -bif 'erl.system.debug':resume_process/1 ebif_resume_process_1 bif erlang:process_display/2 -bif 'erl.system.debug':process_display/2 ebif_process_display_2 bif erlang:bump_reductions/1 -bif 'erl.lang.proc':bump_reductions/1 ebif_bump_reductions_1 bif math:cos/1 -bif 'erl.lang.math':cos/1 ebif_math_cos_1 bif math:cosh/1 -bif 'erl.lang.math':cosh/1 ebif_math_cosh_1 bif math:sin/1 -bif 'erl.lang.math':sin/1 ebif_math_sin_1 bif math:sinh/1 -bif 'erl.lang.math':sinh/1 ebif_math_sinh_1 bif math:tan/1 -bif 'erl.lang.math':tan/1 ebif_math_tan_1 bif math:tanh/1 -bif 'erl.lang.math':tanh/1 ebif_math_tanh_1 bif math:acos/1 -bif 'erl.lang.math':acos/1 ebif_math_acos_1 bif math:acosh/1 -bif 'erl.lang.math':acosh/1 ebif_math_acosh_1 bif math:asin/1 -bif 'erl.lang.math':asin/1 ebif_math_asin_1 bif math:asinh/1 -bif 'erl.lang.math':asinh/1 ebif_math_asinh_1 bif math:atan/1 -bif 'erl.lang.math':atan/1 ebif_math_atan_1 bif math:atanh/1 -bif 'erl.lang.math':atanh/1 ebif_math_atanh_1 bif math:erf/1 -bif 'erl.lang.math':erf/1 ebif_math_erf_1 bif math:erfc/1 -bif 'erl.lang.math':erfc/1 ebif_math_erfc_1 bif math:exp/1 -bif 'erl.lang.math':exp/1 ebif_math_exp_1 bif math:log/1 -bif 'erl.lang.math':log/1 ebif_math_log_1 bif math:log10/1 -bif 'erl.lang.math':log10/1 ebif_math_log10_1 bif math:sqrt/1 -bif 'erl.lang.math':sqrt/1 ebif_math_sqrt_1 bif math:atan2/2 -bif 'erl.lang.math':atan2/2 ebif_math_atan2_2 bif math:pow/2 -bif 'erl.lang.math':pow/2 ebif_math_pow_2 bif erlang:start_timer/3 -bif 'erl.lang.timer':start/3 ebif_start_timer_3 bif erlang:send_after/3 -bif 'erl.lang.timer':send_after/3 ebif_send_after_3 bif erlang:cancel_timer/1 -bif 'erl.lang.timer':cancel/1 ebif_cancel_timer_1 bif erlang:read_timer/1 -bif 'erl.lang.timer':read/1 ebif_read_timer_1 bif erlang:make_tuple/2 -bif 'erl.lang.tuple':make/2 ebif_make_tuple_2 bif erlang:append_element/2 -bif 'erl.lang.tuple':append_element/2 ebif_append_element_2 bif erlang:make_tuple/3 bif erlang:system_flag/2 -bif 'erl.system':set_flag/2 ebif_system_flag_2 bif erlang:system_info/1 -bif 'erl.system':info/1 ebif_system_info_1 # New in R9C bif erlang:system_monitor/0 -bif 'erl.system':monitor/0 ebif_system_monitor_0 bif erlang:system_monitor/1 -bif 'erl.system':monitor/1 ebif_system_monitor_1 bif erlang:system_monitor/2 -bif 'erl.system':monitor/2 ebif_system_monitor_2 # Added 2006-11-07 bif erlang:system_profile/2 -bif 'erl.system':profile/2 ebif_system_profile_2 # End Added 2006-11-07 # Added 2007-01-17 bif erlang:system_profile/0 -bif 'erl.system':profile/0 ebif_system_profile_0 # End Added 2007-01-17 bif erlang:ref_to_list/1 -bif 'erl.lang.ref':to_string/1 ebif_ref_to_string_1 ref_to_list_1 bif erlang:port_to_list/1 -bif 'erl.lang.port':to_string/1 ebif_port_to_string_1 port_to_list_1 bif erlang:fun_to_list/1 -bif 'erl.lang.function':to_string/1 ebif_fun_to_string_1 fun_to_list_1 bif erlang:monitor/2 -bif 'erl.lang.proc':monitor/2 ebif_monitor_2 bif erlang:demonitor/1 -bif 'erl.lang.proc':demonitor/1 ebif_demonitor_1 bif erlang:demonitor/2 -bif 'erl.lang.proc':demonitor/2 ebif_demonitor_2 bif erlang:is_process_alive/1 -bif 'erl.lang.proc':is_alive/1 ebif_proc_is_alive_1 is_process_alive_1 bif erlang:error/1 error_1 -bif 'erl.lang':error/1 ebif_error_1 error_1 bif erlang:error/2 error_2 -bif 'erl.lang':error/2 ebif_error_2 error_2 bif erlang:raise/3 raise_3 -bif 'erl.lang':raise/3 ebif_raise_3 raise_3 bif erlang:get_stacktrace/0 -bif 'erl.lang.proc':get_stacktrace/0 ebif_get_stacktrace_0 bif erlang:is_builtin/3 -bif 'erl.system.code':is_builtin/3 ebif_is_builtin_3 ubif erlang:'and'/2 -ubif 'erl.lang.bool':'and'/2 ebif_and_2 ubif erlang:'or'/2 -ubif 'erl.lang.bool':'or'/2 ebif_or_2 ubif erlang:'xor'/2 -ubif 'erl.lang.bool':'xor'/2 ebif_xor_2 ubif erlang:'not'/1 -ubif 'erl.lang.bool':'not'/1 ebif_not_1 ubif erlang:'>'/2 sgt_2 -ubif 'erl.lang.term':greater/2 ebif_gt_2 sgt_2 ubif erlang:'>='/2 sge_2 -ubif 'erl.lang.term':greater_or_equal/2 ebif_ge_2 sge_2 ubif erlang:'<'/2 slt_2 -ubif 'erl.lang.term':less/2 ebif_lt_2 slt_2 ubif erlang:'=<'/2 sle_2 -ubif 'erl.lang.term':less_or_equal/2 ebif_le_2 sle_2 ubif erlang:'=:='/2 seq_2 -ubif 'erl.lang.term':equal/2 ebif_eq_2 seq_2 ubif erlang:'=='/2 seqeq_2 -ubif 'erl.lang.term':arith_equal/2 ebif_areq_2 seqeq_2 ubif erlang:'=/='/2 sneq_2 -ubif 'erl.lang.term':not_equal/2 ebif_neq_2 sneq_2 ubif erlang:'/='/2 sneqeq_2 -ubif 'erl.lang.term':not_arith_equal/2 ebif_nareq_2 sneqeq_2 ubif erlang:'+'/2 splus_2 -ubif 'erl.lang.number':plus/2 ebif_plus_2 splus_2 ubif erlang:'-'/2 sminus_2 -ubif 'erl.lang.number':minus/2 ebif_minus_2 sminus_2 ubif erlang:'*'/2 stimes_2 -ubif 'erl.lang.number':multiply/2 ebif_multiply_2 stimes_2 ubif erlang:'/'/2 div_2 -ubif 'erl.lang.number':divide/2 ebif_divide_2 div_2 ubif erlang:'div'/2 intdiv_2 -ubif 'erl.lang.integer':'div'/2 ebif_intdiv_2 ubif erlang:'rem'/2 -ubif 'erl.lang.integer':'rem'/2 ebif_rem_2 ubif erlang:'bor'/2 -ubif 'erl.lang.integer':'bor'/2 ebif_bor_2 ubif erlang:'band'/2 -ubif 'erl.lang.integer':'band'/2 ebif_band_2 ubif erlang:'bxor'/2 -ubif 'erl.lang.integer':'bxor'/2 ebif_bxor_2 ubif erlang:'bsl'/2 -ubif 'erl.lang.integer':'bsl'/2 ebif_bsl_2 ubif erlang:'bsr'/2 -ubif 'erl.lang.integer':'bsr'/2 ebif_bsr_2 ubif erlang:'bnot'/1 -ubif 'erl.lang.integer':'bnot'/1 ebif_bnot_1 ubif erlang:'-'/1 sminus_1 -ubif 'erl.lang.number':minus/1 ebif_minus_1 sminus_1 ubif erlang:'+'/1 splus_1 -ubif 'erl.lang.number':plus/1 ebif_plus_1 splus_1 # New operators in R8. These were the only operators missing. # erlang:send/2, erlang:append/2 and erlang:subtract/2 are now also @@ -466,45 +271,27 @@ ubif 'erl.lang.number':plus/1 ebif_plus_1 splus_1 # internal references have been updated to the new ebif_... entries. bif erlang:'!'/2 ebif_bang_2 -bif 'erl.lang.proc':send/2 ebif_send_2 send_2 bif erlang:send/2 -bif 'erl.lang':send/3 ebif_send_3 send_3 bif erlang:send/3 bif erlang:'++'/2 ebif_plusplus_2 -bif 'erl.lang.list':append/2 ebif_append_2 ebif_plusplus_2 bif erlang:append/2 bif erlang:'--'/2 ebif_minusminus_2 -bif 'erl.lang.list':subtract/2 ebif_list_subtract_2 ebif_minusminus_2 bif erlang:subtract/2 ubif erlang:is_atom/1 -ubif 'erl.lang.term':is_atom/1 ebif_is_atom_1 ubif erlang:is_list/1 -ubif 'erl.lang.term':is_list/1 ebif_is_list_1 ubif erlang:is_tuple/1 -ubif 'erl.lang.term':is_tuple/1 ebif_is_tuple_1 ubif erlang:is_float/1 -ubif 'erl.lang.term':is_float/1 ebif_is_float_1 ubif erlang:is_integer/1 -ubif 'erl.lang.term':is_integer/1 ebif_is_integer_1 ubif erlang:is_number/1 -ubif 'erl.lang.term':is_number/1 ebif_is_number_1 ubif erlang:is_pid/1 -ubif 'erl.lang.term':is_pid/1 ebif_is_pid_1 ubif erlang:is_port/1 -ubif 'erl.lang.term':is_port/1 ebif_is_port_1 ubif erlang:is_reference/1 -ubif 'erl.lang.term':is_reference/1 ebif_is_reference_1 ubif erlang:is_binary/1 -ubif 'erl.lang.term':is_binary/1 ebif_is_binary_1 ubif erlang:is_function/1 -ubif 'erl.lang.term':is_function/1 ebif_is_function_1 ubif erlang:is_function/2 -ubif 'erl.lang.term':is_function/2 ebif_is_function_2 ubif erlang:is_record/2 -ubif 'erl.lang.term':is_record/2 ebif_is_record_2 ubif erlang:is_record/3 -ubif 'erl.lang.term':is_record/3 ebif_is_record_3 bif erlang:match_spec_test/3 @@ -513,96 +300,53 @@ bif erlang:match_spec_test/3 # bif ets:all/0 -bif 'erl.lang.ets':all/0 ebif_ets_all_0 bif ets:new/2 -bif 'erl.lang.ets':new/2 ebif_ets_new_2 bif ets:delete/1 -bif 'erl.lang.ets':delete/1 ebif_ets_delete_1 bif ets:delete/2 -bif 'erl.lang.ets':delete/2 ebif_ets_delete_2 bif ets:delete_all_objects/1 -bif 'erl.lang.ets':delete_all_objects/1 ebif_ets_delete_all_objects_1 bif ets:delete_object/2 -bif 'erl.lang.ets':delete_object/2 ebif_ets_delete_object_2 bif ets:first/1 -bif 'erl.lang.ets':first/1 ebif_ets_first_1 bif ets:is_compiled_ms/1 -bif 'erl.lang.ets':is_compiled_ms/1 ebif_ets_is_compiled_ms_1 bif ets:lookup/2 -bif 'erl.lang.ets':lookup/2 ebif_ets_lookup_2 bif ets:lookup_element/3 -bif 'erl.lang.ets':lookup_element/3 ebif_ets_lookup_element_3 bif ets:info/1 -bif 'erl.lang.ets':info/1 ebif_ets_info_1 bif ets:info/2 -bif 'erl.lang.ets':info/2 ebif_ets_info_2 bif ets:last/1 -bif 'erl.lang.ets':last/1 ebif_ets_last_1 bif ets:match/1 -bif 'erl.lang.ets':match/1 ebif_ets_match_1 bif ets:match/2 -bif 'erl.lang.ets':match/2 ebif_ets_match_2 bif ets:match/3 -bif 'erl.lang.ets':match/3 ebif_ets_match_3 bif ets:match_object/1 -bif 'erl.lang.ets':match_object/1 ebif_ets_match_object_1 bif ets:match_object/2 -bif 'erl.lang.ets':match_object/2 ebif_ets_match_object_2 bif ets:match_object/3 -bif 'erl.lang.ets':match_object/3 ebif_ets_match_object_3 bif ets:member/2 -bif 'erl.lang.ets':is_key/2 ebif_ets_member_2 bif ets:next/2 -bif 'erl.lang.ets':next/2 ebif_ets_next_2 bif ets:prev/2 -bif 'erl.lang.ets':prev/2 ebif_ets_prev_2 bif ets:insert/2 -bif 'erl.lang.ets':insert/2 ebif_ets_insert_2 bif ets:insert_new/2 -bif 'erl.lang.ets':insert_new/2 ebif_ets_insert_new_2 bif ets:rename/2 -bif 'erl.lang.ets':rename/2 ebif_ets_rename_2 bif ets:safe_fixtable/2 -bif 'erl.lang.ets':fixtable/2 ebif_ets_safe_fixtable_2 bif ets:slot/2 -bif 'erl.lang.ets':slot/2 ebif_ets_slot_2 bif ets:update_counter/3 -bif 'erl.lang.ets':update_counter/3 ebif_ets_update_counter_3 bif ets:select/1 -bif 'erl.lang.ets':select/1 ebif_ets_select_1 bif ets:select/2 -bif 'erl.lang.ets':select/2 ebif_ets_select_2 bif ets:select/3 -bif 'erl.lang.ets':select/3 ebif_ets_select_3 bif ets:select_count/2 -bif 'erl.lang.ets':select/2 ebif_ets_select_count_2 bif ets:select_reverse/1 -bif 'erl.lang.ets':select_reverse/1 ebif_ets_select_reverse_1 bif ets:select_reverse/2 -bif 'erl.lang.ets':select_reverse/2 ebif_ets_select_reverse_2 bif ets:select_reverse/3 -bif 'erl.lang.ets':select_reverse/3 ebif_ets_select_reverse_3 bif ets:select_delete/2 -bif 'erl.lang.ets':select_delete/2 ebif_ets_select_delete_2 bif ets:match_spec_compile/1 -bif 'erl.lang.ets':match_spec_compile/1 ebif_ets_match_spec_compile_1 bif ets:match_spec_run_r/3 -bif 'erl.lang.ets':match_spec_run_r/3 ebif_ets_match_spec_run_r_3 # # Bifs in os module. # bif os:putenv/2 -bif 'erl.system.os':setenv/2 ebif_os_setenv_2 os_putenv_2 bif os:getenv/0 -bif 'erl.system.os':getenv/0 ebif_os_getenv_0 bif os:getenv/1 -bif 'erl.system.os':getenv/1 ebif_os_getenv_1 bif os:getpid/0 -bif 'erl.system.os':pid/0 ebif_os_pid_0 os_getpid_0 bif os:timestamp/0 -bif 'erl.system.os':timestamp/0 ebif_os_timestamp_0 os_timestamp_0 # # Bifs in the erl_ddll module (the module actually does not exist) @@ -629,13 +373,9 @@ bif re:run/3 # bif lists:member/2 -bif 'erl.lang.list':is_element/2 ebif_list_is_element_2 lists_member_2 bif lists:reverse/2 -bif 'erl.lang.list':reverse/2 ebif_list_reverse_2 lists_reverse_2 bif lists:keymember/3 -bif 'erl.lang.list.keylist':is_element/3 ebif_keylist_is_element_3 lists_keymember_3 bif lists:keysearch/3 -bif 'erl.lang.list.keylist':search/3 ebif_keylist_search_3 lists_keysearch_3 bif lists:keyfind/3 # @@ -643,21 +383,13 @@ bif lists:keyfind/3 # bif erts_debug:disassemble/1 -bif 'erl.system.debug':disassemble/1 ebif_erts_debug_disassemble_1 bif erts_debug:breakpoint/2 -bif 'erl.system.debug':breakpoint/2 ebif_erts_debug_breakpoint_2 bif erts_debug:same/2 -bif 'erl.system.debug':same/2 ebif_erts_debug_same_2 bif erts_debug:flat_size/1 -bif 'erl.system.debug':flat_size/1 ebif_erts_debug_flat_size_1 bif erts_debug:get_internal_state/1 -bif 'erl.system.debug':get_internal_state/1 ebif_erts_debug_get_internal_state_1 bif erts_debug:set_internal_state/2 -bif 'erl.system.debug':set_internal_state/2 ebif_erts_debug_set_internal_state_2 bif erts_debug:display/1 -bif 'erl.system.debug':display/1 ebif_erts_debug_display_1 bif erts_debug:dist_ext_to_term/2 -bif 'erl.system.debug':dist_ext_to_term/2 ebif_erts_debug_dist_ext_to_term_2 bif erts_debug:instructions/0 # @@ -677,13 +409,9 @@ bif erts_debug:lock_counters/1 # bif code:get_chunk/2 -bif 'erl.system.code':get_chunk/2 ebif_code_get_chunk_2 bif code:module_md5/1 -bif 'erl.system.code':module_md5/1 ebif_code_module_md5_1 bif code:make_stub_module/3 -bif 'erl.system.code':make_stub_module/3 ebif_code_make_stub_module_3 bif code:is_module_native/1 -bif 'erl.system.code':is_native/1 ebif_code_is_native_1 code_is_module_native_1 # # New Bifs in R9C. @@ -752,7 +480,7 @@ bif erlang:call_on_load_function/1 bif erlang:finish_after_on_load/2 # -# New Bifs in R13B4 +# New Bifs in R13B04 # bif erlang:binary_to_term/2 @@ -799,6 +527,7 @@ bif erlang:nif_error/2 bif prim_file:internal_name2native/1 bif prim_file:internal_native2name/1 bif prim_file:internal_normalize_utf8/1 +bif prim_file:is_translatable/1 bif file:native_name_encoding/0 # @@ -829,6 +558,48 @@ bif erlang:dt_restore_tag/1 bif erlang:dt_prepend_vm_tag_data/1 bif erlang:dt_append_vm_tag_data/1 + +# +# New in R16B. +# +bif erlang:prepare_loading/2 +bif erlang:finish_loading/1 +bif erlang:insert_element/3 +bif erlang:delete_element/2 +bif erlang:binary_to_integer/1 +bif erlang:binary_to_integer/2 +bif erlang:integer_to_binary/1 +bif erlang:list_to_integer/2 +bif erlang:float_to_binary/1 +bif erlang:float_to_binary/2 +bif erlang:binary_to_float/1 + +bif io:printable_range/0 +bif os:unsetenv/1 + +# +# New in R17A +# + +bif re:inspect/2 + +ubif erlang:is_map/1 +ubif erlang:map_size/1 +bif maps:to_list/1 +bif maps:find/2 +bif maps:get/2 +bif maps:from_list/1 +bif maps:is_key/2 +bif maps:keys/1 +bif maps:merge/2 +bif maps:new/0 +bif maps:put/3 +bif maps:remove/2 +bif maps:update/3 +bif maps:values/1 + +bif erts_internal:cmp_term/2 + # # Obsolete # diff --git a/erts/emulator/beam/big.c b/erts/emulator/beam/big.c index 5a5b162b9c..e62caa6b22 100644 --- a/erts/emulator/beam/big.c +++ b/erts/emulator/beam/big.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 1996-2012. All Rights Reserved. + * Copyright Ericsson AB 1996-2014. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -150,14 +150,14 @@ #define D2GTE(a1,a0,b1,b0) (!D2LT(a1,a0,b1,b0)) #define D2LTE(a1,a0,b1,b0) (!D2GT(a1,a0,b1,b0)) -// Add (A+B), A=(a1B+a0) B=(b1B+b0) +/* Add (A+B), A=(a1B+a0) B=(b1B+b0) */ #define D2ADD(a1,a0,b1,b0,c1,c0) do { \ ErtsDigit __ci = 0; \ DSUM(a0,b0,__ci,c0); \ DSUMc(a1,b1,__ci,c1); \ } while(0) -// Subtract (A-B), A=(a1B+a0), B=(b1B+b0) (A>=B) +/* Subtract (A-B), A=(a1B+a0), B=(b1B+b0) (A>=B) */ #define D2SUB(a1,a0,b1,b0,c1,c0) do { \ ErtsDigit __bi; \ DSUB(a0,b0,__bi,c0); \ @@ -274,6 +274,9 @@ _b = _b << _s; \ _vn1 = _b >> H_EXP; \ _vn0 = _b & LO_MASK; \ + /* Sometimes _s is 0 which triggers undefined behaviour for the \ + (_a0>>(D_EXP-_s)) shift, but this is ok because the \ + & -s will make it all to 0 later anyways. */ \ _un32 = (_a1 << _s) | ((_a0>>(D_EXP-_s)) & (-_s >> (D_EXP-1))); \ _un10 = _a0 << _s; \ _un1 = _un10 >> H_EXP; \ @@ -1325,9 +1328,9 @@ static dsize_t I_lshift(ErtsDigit* x, dsize_t xl, Sint y, return 1; } else { - SWord ay = (y < 0) ? -y : y; - int bw = ay / D_EXP; - int sw = ay % D_EXP; + Uint ay = (y < 0) ? -y : y; + Uint bw = ay / D_EXP; + Uint sw = ay % D_EXP; dsize_t rl; ErtsDigit a1=0; ErtsDigit a0=0; @@ -1337,7 +1340,7 @@ static dsize_t I_lshift(ErtsDigit* x, dsize_t xl, Sint y, while(bw--) *r++ = 0; - if (sw) { // NOTE! x >> 32 is not = 0! + if (sw) { /* NOTE! x >> 32 is not = 0! */ while(xl--) { a0 = (*x << sw) | a1; a1 = (*x >> (D_EXP - sw)); @@ -1368,7 +1371,7 @@ static dsize_t I_lshift(ErtsDigit* x, dsize_t xl, Sint y, } if (sign) { - int zl = bw; + Uint zl = bw; ErtsDigit* z = x; while(zl--) { @@ -1384,7 +1387,7 @@ static dsize_t I_lshift(ErtsDigit* x, dsize_t xl, Sint y, x += (xl-1); r += (rl-1); xl -= bw; - if (sw) { // NOTE! x >> 32 is not = 0! + if (sw) { /* NOTE! x >> 32 is not = 0! */ while(xl--) { a1 = (*x >> sw) | a0; a0 = (*x << (D_EXP-sw)); @@ -1506,13 +1509,15 @@ Eterm uword_to_big(UWord x, Eterm *y) */ Eterm small_to_big(Sint x, Eterm *y) { + Uint xu; if (x >= 0) { + xu = x; *y = make_pos_bignum_header(1); } else { - x = -x; + xu = -(Uint)x; *y = make_neg_bignum_header(1); } - BIG_DIGIT(y, 0) = x; + BIG_DIGIT(y, 0) = xu; return make_big(y); } @@ -1540,21 +1545,24 @@ Eterm erts_uint64_to_big(Uint64 x, Eterm **hpp) Eterm erts_sint64_to_big(Sint64 x, Eterm **hpp) { Eterm *hp = *hpp; + Uint64 ux; int neg; - if (x >= 0) + if (x >= 0) { neg = 0; + ux = x; + } else { neg = 1; - x = -x; + ux = -(Uint64)x; } #if defined(ARCH_32) || HALFWORD_HEAP - if (x >= (((Uint64) 1) << 32)) { + if (ux >= (((Uint64) 1) << 32)) { if (neg) *hp = make_neg_bignum_header(2); else *hp = make_pos_bignum_header(2); - BIG_DIGIT(hp, 0) = (Uint) (x & ((Uint) 0xffffffff)); - BIG_DIGIT(hp, 1) = (Uint) ((x >> 32) & ((Uint) 0xffffffff)); + BIG_DIGIT(hp, 0) = (Uint) (ux & ((Uint) 0xffffffff)); + BIG_DIGIT(hp, 1) = (Uint) ((ux >> 32) & ((Uint) 0xffffffff)); *hpp += 3; } else @@ -1564,7 +1572,7 @@ Eterm erts_sint64_to_big(Sint64 x, Eterm **hpp) *hp = make_neg_bignum_header(1); else *hp = make_pos_bignum_header(1); - BIG_DIGIT(hp, 0) = (Uint) x; + BIG_DIGIT(hp, 0) = (Uint) ux; *hpp += 2; } return make_big(hp); @@ -1603,9 +1611,11 @@ big_to_double(Wterm x, double* resp) /* * Logic has been copied from erl_bif_guard.c and slightly * modified to use a static instead of dynamic heap + * + * HALFWORD: Return relative term with 'heap' as base. */ Eterm -double_to_big(double x, Eterm *heap) +double_to_big(double x, Eterm *heap, Uint hsz) { int is_negative; int ds; @@ -1633,9 +1643,10 @@ double_to_big(double x, Eterm *heap) sz = BIG_NEED_SIZE(ds); /* number of words including arity */ hp = heap; - res = make_big(hp); + res = make_big_rel(hp, heap); xp = (ErtsDigit*) (hp + 1); + ASSERT(ds < hsz); for (i = ds - 1; i >= 0; i--) { ErtsDigit d; @@ -1674,26 +1685,26 @@ int big_decimal_estimate(Wterm x) ** Convert a bignum into a string of decimal numbers */ -static void write_big(Wterm x, void (*write_func)(void *, char), void *arg) +static Uint write_big(Wterm x, void (*write_func)(void *, char), void *arg) { Eterm* xp = big_val(x); ErtsDigit* dx = BIG_V(xp); dsize_t xl = BIG_SIZE(xp); short sign = BIG_SIGN(xp); ErtsDigit rem; + Uint n = 0; if (xl == 1 && *dx < D_DECIMAL_BASE) { rem = *dx; - if (rem == 0) - (*write_func)(arg, '0'); - else { + if (rem == 0) { + (*write_func)(arg, '0'); n++; + } else { while(rem) { - (*write_func)(arg, (rem % 10) + '0'); + (*write_func)(arg, (rem % 10) + '0'); n++; rem /= 10; } } - } - else { + } else { ErtsDigit* tmp = (ErtsDigit*) erts_alloc(ERTS_ALC_T_TMP, sizeof(ErtsDigit)*xl); dsize_t tmpl = xl; @@ -1704,15 +1715,14 @@ static void write_big(Wterm x, void (*write_func)(void *, char), void *arg) tmpl = D_div(tmp, tmpl, D_DECIMAL_BASE, tmp, &rem); if (tmpl == 1 && *tmp == 0) { while(rem) { - (*write_func)(arg, (rem % 10)+'0'); + (*write_func)(arg, (rem % 10)+'0'); n++; rem /= 10; } break; - } - else { + } else { int i = D_DECIMAL_EXP; while(i--) { - (*write_func)(arg, (rem % 10)+'0'); + (*write_func)(arg, (rem % 10)+'0'); n++; rem /= 10; } } @@ -1720,8 +1730,10 @@ static void write_big(Wterm x, void (*write_func)(void *, char), void *arg) erts_free(ERTS_ALC_T_TMP, (void *) tmp); } - if (sign) - (*write_func)(arg, '-'); + if (sign) { + (*write_func)(arg, '-'); n++; + } + return n; } struct big_list__ { @@ -1762,6 +1774,20 @@ char *erts_big_to_string(Wterm x, char *buf, Uint buf_sz) return big_str; } +/* Bignum to binary bytes + * e.g. 1 bsl 64 -> "18446744073709551616" + */ + +Uint erts_big_to_binary_bytes(Eterm x, char *buf, Uint buf_sz) +{ + char *big_str = buf + buf_sz; + Uint n; + n = write_big(x, write_string, (void *) &big_str); + ASSERT(buf <= big_str && big_str <= buf + buf_sz); + return n; +} + + /* ** Normalize a bignum given thing pointer length in digits and a sign ** patch zero if odd length @@ -2453,7 +2479,7 @@ int term_equals_2pow32(Eterm x) if (!is_big(x)) return 0; bp = big_val(x); -#if D_EXP == 16 // 16 bit platfrom not really supported!!! +#if D_EXP == 16 /* 16 bit platfrom not really supported!!! */ return (BIG_SIZE(bp) == 3) && !BIG_DIGIT(bp,0) && !BIG_DIGIT(bp,1) && BIG_DIGIT(bp,2) == 1; #elif D_EXP == 32 @@ -2467,3 +2493,210 @@ int term_equals_2pow32(Eterm x) return 0; } } + + +#define IS_VALID_CHARACTER(CHAR,BASE) \ + (CHAR < '0' \ + || (CHAR > ('0' + BASE - 1) \ + && !(BASE > 10 \ + && ((CHAR >= 'a' && CHAR < ('a' + BASE - 10)) \ + || (CHAR >= 'A' && CHAR < ('A' + BASE - 10)))))) +#define CHARACTER_FROM_BASE(CHAR) \ + ((CHAR <= '9') ? CHAR - '0' : 10 + ((CHAR <= 'Z') ? CHAR - 'A' : CHAR - 'a')) +#define D_BASE_EXP(BASE) (d_base_exp_lookup[BASE-2]) +#define D_BASE_BASE(BASE) (d_base_base_lookup[BASE-2]) +#define LG2_LOOKUP(BASE) (lg2_lookup[base-2]) + +/* + * for i in 2..64 do + * lg2_lookup[i-2] = log2(i) + * end + * How many bits are needed to store string of size n + */ +const double lg2_lookup[] = { 1.0, 1.58496, 2, 2.32193, 2.58496, 2.80735, 3.0, + 3.16993, 3.32193, 3.45943, 3.58496, 3.70044, 3.80735, 3.90689, 4.0, + 4.08746, 4.16993, 4.24793, 4.32193, 4.39232, 4.45943, 4.52356, 4.58496, + 4.64386, 4.70044, 4.75489, 4.80735, 4.85798, 4.90689, 4.9542, 5.0, + 5.04439, 5.08746, 5.12928, 5.16993, 5.20945, 5.24793, 5.2854, 5.32193, + 5.35755, 5.39232, 5.42626, 5.45943, 5.49185, 5.52356, 5.55459, 5.58496, + 5.61471, 5.64386, 5.67243, 5.70044, 5.72792, 5.75489, 5.78136, 5.80735, + 5.83289, 5.85798, 5.88264, 5.90689, 5.93074, 5.9542, 5.97728, 6.0 }; + +/* + * for i in 2..64 do + * d_base_exp_lookup[i-2] = 31 / lg2_lookup[i-2]; + * end + * How many characters can fit in 31 bits + */ +const byte d_base_exp_lookup[] = { 31, 19, 15, 13, 11, 11, 10, 9, 9, 8, 8, 8, 8, + 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5 }; + +/* + * for i in 2..64 do + * d_base_base_lookup[i-2] = pow(i,d_base_exp_lookup[i-2]); + * end + * How much can the characters which fit in 31 bit represent + */ +const Uint d_base_base_lookup[] = { 2147483648u, 1162261467u, 1073741824u, + 1220703125u, 362797056u, 1977326743u, 1073741824u, 387420489u, + 1000000000u, 214358881u, 429981696u, 815730721u, 1475789056u, + 170859375u, 268435456u, 410338673u, 612220032u, 893871739u, 1280000000u, + 1801088541u, 113379904u, 148035889u, 191102976u, 244140625u, 308915776u, + 387420489u, 481890304u, 594823321u, 729000000u, 887503681u, 1073741824u, + 1291467969u, 1544804416u, 1838265625u, 60466176u, 69343957u, 79235168u, + 90224199u, 102400000u, 115856201u, 130691232u, 147008443u, 164916224u, + 184528125u, 205962976u, 229345007u, 254803968u, 282475249u, 312500000u, + 345025251u, 380204032u, 418195493u, 459165024u, 503284375u, 550731776u, + 601692057u, 656356768u, 714924299u, 777600000u, 844596301u, 916132832u, + 992436543u, 1073741824u }; + +Eterm erts_chars_to_integer(Process *BIF_P, char *bytes, + Uint size, const int base) { + Eterm res; + Sint i = 0; + int n = 0; + int neg = 0; + byte b; + Eterm *hp, *hp_end; + int m; + int lg2; + + if (size == 0) + goto bytebuf_to_integer_1_error; + + if (bytes[0] == '-') { + neg = 1; + bytes++; + size--; + + } else if (bytes[0] == '+') { + bytes++; + size--; + } + + if (size < SMALL_DIGITS && base <= 10) { + /* * + * Take shortcut if we know that all chars are '0' < b < '9' and + * fit in a small. This improves speed by about 10% over the generic + * small case. + * */ + while (size--) { + b = *bytes++; + + if (b < '0' || b > ('0'+base-1)) + goto bytebuf_to_integer_1_error; + + i = i * base + b - '0'; + } + + if (neg) + i = -i; + res = make_small(i); + goto bytebuf_to_integer_1_done; + } + + /* + * Calculate the maximum number of bits which will + * be needed to represent the binary + */ + lg2 = ((size+2)*LG2_LOOKUP(base)+1); + + if (lg2 < SMALL_BITS) { + /* Take shortcut if we know it will fit in a small. + * This improves speed by about 30%. + */ + while (size) { + b = *bytes++; + size--; + + if (IS_VALID_CHARACTER(b,base)) + goto bytebuf_to_integer_1_error; + + i = i * base + CHARACTER_FROM_BASE(b); + + } + + if (neg) + i = -i; + res = make_small(i); + goto bytebuf_to_integer_1_done; + + } + + /* Start calculating bignum */ + m = (lg2 + D_EXP-1)/D_EXP; + m = BIG_NEED_SIZE(m); + + hp = HAlloc(BIF_P, m); + hp_end = hp + m; + + if ((i = (size % D_BASE_EXP(base))) == 0) + i = D_BASE_EXP(base); + + n = size - i; + m = 0; + + while (i--) { + b = *bytes++; + + if (IS_VALID_CHARACTER(b,base)) { + HRelease(BIF_P, hp_end, hp); + goto bytebuf_to_integer_1_error; + } + + m = base * m + CHARACTER_FROM_BASE(b); + } + + res = small_to_big(m, hp); + + while (n) { + i = D_BASE_EXP(base); + n -= D_BASE_EXP(base); + m = 0; + while (i--) { + b = *bytes++; + + if (IS_VALID_CHARACTER(b,base)) { + HRelease(BIF_P, hp_end, hp); + goto bytebuf_to_integer_1_error; + } + + m = base * m + CHARACTER_FROM_BASE(b); + } + if (is_small(res)) { + res = small_to_big(signed_val(res), hp); + } + res = big_times_small(res, D_BASE_BASE(base), hp); + if (is_small(res)) { + res = small_to_big(signed_val(res), hp); + } + res = big_plus_small(res, m, hp); + } + + if (is_big(res)) /* check if small */ + res = big_plus_small(res, 0, hp); /* includes conversion to small */ + + if (neg) { + if (is_small(res)) + res = make_small(-signed_val(res)); + else { + Uint *big = big_val(res); /* point to thing */ + *big = bignum_header_neg(*big); + } + } + + if (is_big(res)) { + hp += (big_arity(res) + 1); + } + HRelease(BIF_P, hp_end, hp); + goto bytebuf_to_integer_1_done; + +bytebuf_to_integer_1_error: + return THE_NON_VALUE; + +bytebuf_to_integer_1_done: + return res; + +} diff --git a/erts/emulator/beam/big.h b/erts/emulator/beam/big.h index 7eb1e5afe2..da31876d75 100644 --- a/erts/emulator/beam/big.h +++ b/erts/emulator/beam/big.h @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 1996-2011. All Rights Reserved. + * Copyright Ericsson AB 1996-2014. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -101,7 +101,7 @@ typedef Uint dsize_t; /* Vector size type */ #define ERTS_SINT64_HEAP_SIZE(X) \ (IS_SSMALL((X)) \ ? 0 \ - : ERTS_UINT64_BIG_HEAP_SIZE__((X) >= 0 ? (X) : -(X))) + : ERTS_UINT64_BIG_HEAP_SIZE__((X) >= 0 ? (X) : -(Uint64)(X))) #define ERTS_UINT64_HEAP_SIZE(X) \ (IS_USMALL(0, (X)) ? 0 : ERTS_UINT64_BIG_HEAP_SIZE__((X))) @@ -117,6 +117,7 @@ typedef Uint dsize_t; /* Vector size type */ int big_decimal_estimate(Wterm); Eterm erts_big_to_list(Eterm, Eterm**); char *erts_big_to_string(Wterm x, char *buf, Uint buf_sz); +Uint erts_big_to_binary_bytes(Eterm x, char *buf, Uint buf_sz); Eterm small_times(Sint, Sint, Eterm*); @@ -140,7 +141,7 @@ Eterm big_lshift(Eterm, Sint, Eterm*); int big_comp (Wterm, Wterm); int big_ucomp (Eterm, Eterm); int big_to_double(Wterm x, double* resp); -Eterm double_to_big(double, Eterm*); +Eterm double_to_big(double, Eterm*, Uint hsz); Eterm small_to_big(Sint, Eterm*); Eterm uint_to_big(Uint, Eterm*); Eterm uword_to_big(UWord, Eterm*); @@ -165,5 +166,7 @@ int term_equals_2pow32(Eterm); Eterm erts_uint64_to_big(Uint64, Eterm **); Eterm erts_sint64_to_big(Sint64, Eterm **); +Eterm erts_chars_to_integer(Process *, char*, Uint, const int); + #endif diff --git a/erts/emulator/beam/binary.c b/erts/emulator/beam/binary.c index 3d2725e239..f50d484576 100644 --- a/erts/emulator/beam/binary.c +++ b/erts/emulator/beam/binary.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 1996-2011. All Rights Reserved. + * Copyright Ericsson AB 1996-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -31,12 +31,11 @@ #include "erl_binary.h" #include "erl_bits.h" -#ifdef DEBUG -static int list_to_bitstr_buf(Eterm obj, char* buf, Uint len); -#else -static int list_to_bitstr_buf(Eterm obj, char* buf); -#endif -static int bitstr_list_len(Eterm obj, Uint* num_bytes); +static Export binary_to_list_continue_export; +static Export list_to_binary_continue_export; + +static BIF_RETTYPE binary_to_list_continue(BIF_ALIST_1); +static BIF_RETTYPE list_to_binary_continue(BIF_ALIST_1); void erts_init_binary(void) @@ -49,6 +48,15 @@ erts_init_binary(void) "Internal error: Address of orig_bytes[0] of a Binary" " is *not* 8-byte aligned\n"); } + + erts_init_trap_export(&binary_to_list_continue_export, + am_erts_internal, am_binary_to_list_continue, 1, + &binary_to_list_continue); + + erts_init_trap_export(&list_to_binary_continue_export, + am_erts_internal, am_list_to_binary_continue, 1, + &list_to_binary_continue); + } /* @@ -240,6 +248,224 @@ erts_bin_bytes_to_list(Eterm previous, Eterm* hp, byte* bytes, Uint size, Uint b return previous; } +BIF_RETTYPE binary_to_integer_1(BIF_ALIST_1) +{ + byte *temp_alloc = NULL; + char *bytes; + Uint size; + Eterm res; + + if ((bytes = (char*)erts_get_aligned_binary_bytes(BIF_ARG_1, &temp_alloc)) + == NULL ) + goto binary_to_integer_1_error; + + size = binary_size(BIF_ARG_1); + + if ((res = erts_chars_to_integer(BIF_P,bytes,size,10)) != THE_NON_VALUE) { + erts_free_aligned_binary_bytes(temp_alloc); + return res; + } + + binary_to_integer_1_error: + erts_free_aligned_binary_bytes(temp_alloc); + BIF_ERROR(BIF_P, BADARG); +} + +BIF_RETTYPE binary_to_integer_2(BIF_ALIST_2) +{ + byte *temp_alloc = NULL; + char *bytes; + Uint size; + int base; + Eterm res; + + if (!is_small(BIF_ARG_2)) + BIF_ERROR(BIF_P, BADARG); + + base = signed_val(BIF_ARG_2); + + if (base < 2 || base > 36) + BIF_ERROR(BIF_P, BADARG); + + if ((bytes = (char*)erts_get_aligned_binary_bytes(BIF_ARG_1, &temp_alloc)) + == NULL ) + goto binary_to_integer_2_error; + + size = binary_size(BIF_ARG_1); + + if ((res = erts_chars_to_integer(BIF_P,bytes,size,base)) != THE_NON_VALUE) { + erts_free_aligned_binary_bytes(temp_alloc); + return res; + } + + binary_to_integer_2_error: + + erts_free_aligned_binary_bytes(temp_alloc); + BIF_ERROR(BIF_P, BADARG); + +} + +BIF_RETTYPE integer_to_binary_1(BIF_ALIST_1) +{ + Uint size; + Eterm res; + + if (is_not_integer(BIF_ARG_1)) { + BIF_ERROR(BIF_P, BADARG); + } + + if (is_small(BIF_ARG_1)) { + char *c; + struct Sint_buf ibuf; + + /* Enhancement: If we can calculate the buffer size exactly + * we could avoid an unnecessary copy of buffers. + * Useful if size determination is faster than a copy. + */ + c = Sint_to_buf(signed_val(BIF_ARG_1), &ibuf); + size = sys_strlen(c); + res = new_binary(BIF_P, (byte *)c, size); + } else { + byte* bytes; + Uint n = 0; + + /* Here we also have multiple copies of buffers + * due to new_binary interface + */ + size = big_decimal_estimate(BIF_ARG_1) - 1; /* remove null */ + bytes = (byte*) erts_alloc(ERTS_ALC_T_TMP, sizeof(byte)*size); + n = erts_big_to_binary_bytes(BIF_ARG_1, (char *)bytes, size); + res = new_binary(BIF_P, bytes + size - n, n); + erts_free(ERTS_ALC_T_TMP, (void *) bytes); + } + BIF_RET(res); +} + +#define ERTS_B2L_BYTES_PER_REDUCTION 256 + +typedef struct { + Eterm res; + Eterm *hp; +#ifdef DEBUG + Eterm *hp_end; +#endif + byte *bytes; + Uint size; + Uint bitoffs; +} ErtsB2LState; + +static void b2l_state_destructor(Binary *mbp) +{ + ASSERT(ERTS_MAGIC_BIN_DESTRUCTOR(mbp) == b2l_state_destructor); +} + +static BIF_RETTYPE +binary_to_list_chunk(Process *c_p, + Eterm mb_eterm, + ErtsB2LState* sp, + int reds_left, + int gc_disabled) +{ + BIF_RETTYPE ret; + int bump_reds; + Uint size; + byte *bytes; + + size = (reds_left + 1)*ERTS_B2L_BYTES_PER_REDUCTION; + if (size > sp->size) + size = sp->size; + bytes = sp->bytes + (sp->size - size); + + bump_reds = (size - 1)/ERTS_B2L_BYTES_PER_REDUCTION + 1; + BUMP_REDS(c_p, bump_reds); + + ASSERT(is_list(sp->res) || is_nil(sp->res)); + + sp->res = erts_bin_bytes_to_list(sp->res, + sp->hp, + bytes, + size, + sp->bitoffs); + sp->size -= size; + sp->hp += 2*size; + + if (sp->size > 0) { + + if (!gc_disabled) + erts_set_gc_state(c_p, 0); + + ASSERT(c_p->flags & F_DISABLE_GC); + ASSERT(is_value(mb_eterm)); + ERTS_BIF_PREP_TRAP1(ret, + &binary_to_list_continue_export, + c_p, + mb_eterm); + } + else { + + ASSERT(sp->hp == sp->hp_end); + ASSERT(sp->size == 0); + + if (!gc_disabled || !erts_set_gc_state(c_p, 1)) + ERTS_BIF_PREP_RET(ret, sp->res); + else + ERTS_BIF_PREP_YIELD_RETURN(ret, c_p, sp->res); + ASSERT(!(c_p->flags & F_DISABLE_GC)); + } + + return ret; +} + +static ERTS_INLINE BIF_RETTYPE +binary_to_list(Process *c_p, Eterm *hp, Eterm tail, byte *bytes, Uint size, Uint bitoffs) +{ + int reds_left = ERTS_BIF_REDS_LEFT(c_p); + if (size < reds_left*ERTS_B2L_BYTES_PER_REDUCTION) { + Eterm res; + BIF_RETTYPE ret; + int bump_reds = (size - 1)/ERTS_B2L_BYTES_PER_REDUCTION + 1; + BUMP_REDS(c_p, bump_reds); + res = erts_bin_bytes_to_list(tail, hp, bytes, size, bitoffs); + ERTS_BIF_PREP_RET(ret, res); + return ret; + } + else { + Binary *mbp = erts_create_magic_binary(sizeof(ErtsB2LState), + b2l_state_destructor); + ErtsB2LState *sp = ERTS_MAGIC_BIN_DATA(mbp); + Eterm mb; + + sp->res = tail; + sp->hp = hp; +#ifdef DEBUG + sp->hp_end = sp->hp + 2*size; +#endif + sp->bytes = bytes; + sp->size = size; + sp->bitoffs = bitoffs; + + hp = HAlloc(c_p, PROC_BIN_SIZE); + mb = erts_mk_magic_binary_term(&hp, &MSO(c_p), mbp); + return binary_to_list_chunk(c_p, mb, sp, reds_left, 0); + } +} + +static BIF_RETTYPE binary_to_list_continue(BIF_ALIST_1) +{ + Binary *mbp = ((ProcBin *) binary_val(BIF_ARG_1))->val; + + ASSERT(ERTS_MAGIC_BIN_DESTRUCTOR(mbp) == b2l_state_destructor); + + ASSERT(BIF_P->flags & F_DISABLE_GC); + + return binary_to_list_chunk(BIF_P, + BIF_ARG_1, + (ErtsB2LState*) ERTS_MAGIC_BIN_DATA(mbp), + ERTS_BIF_REDS_LEFT(BIF_P), + 1); +} + +HIPE_WRAPPER_BIF_DISABLE_GC(binary_to_list, 1) BIF_RETTYPE binary_to_list_1(BIF_ALIST_1) { @@ -262,14 +488,15 @@ BIF_RETTYPE binary_to_list_1(BIF_ALIST_1) } else { Eterm* hp = HAlloc(BIF_P, 2 * size); byte* bytes = binary_bytes(real_bin)+offset; - - BIF_RET(erts_bin_bytes_to_list(NIL, hp, bytes, size, bitoffs)); + return binary_to_list(BIF_P, hp, NIL, bytes, size, bitoffs); } error: BIF_ERROR(BIF_P, BADARG); } +HIPE_WRAPPER_BIF_DISABLE_GC(binary_to_list, 3) + BIF_RETTYPE binary_to_list_3(BIF_ALIST_3) { byte* bytes; @@ -295,12 +522,13 @@ BIF_RETTYPE binary_to_list_3(BIF_ALIST_3) } i = stop-start+1; hp = HAlloc(BIF_P, 2*i); - BIF_RET(erts_bin_bytes_to_list(NIL, hp, bytes+start-1, i, bitoffs)); - + return binary_to_list(BIF_P, hp, NIL, bytes+start-1, i, bitoffs); error: BIF_ERROR(BIF_P, BADARG); } +HIPE_WRAPPER_BIF_DISABLE_GC(bitstring_to_list, 1) + BIF_RETTYPE bitstring_to_list_1(BIF_ALIST_1) { Eterm real_bin; @@ -339,113 +567,441 @@ BIF_RETTYPE bitstring_to_list_1(BIF_ALIST_1) previous = CONS(hp, make_binary(last), previous); hp += 2; } - BIF_RET(erts_bin_bytes_to_list(previous, hp, bytes, size, bitoffs)); + + return binary_to_list(BIF_P, hp, previous, bytes, size, bitoffs); } /* Turn a possibly deep list of ints (and binaries) into */ /* One large binary object */ -/* - * This bif also exists in the binary module, under the name - * binary:list_to_bin/1, why it's divided into interface and - * implementation. Also the backend for iolist_to_binary_1. - */ +typedef enum { + ERTS_L2B_OK, + ERTS_L2B_YIELD, + ERTS_L2B_TYPE_ERROR, + ERTS_L2B_OVERFLOW_ERROR +} ErtsL2BResult; -BIF_RETTYPE erts_list_to_binary_bif(Process *p, Eterm arg) -{ +#define ERTS_L2B_STATE_INITER(C_P, ARG, BIF, SZFunc, TBufFunc) \ + {ERTS_IOLIST2BUF_STATE_INITER((C_P), (ARG)), \ + (ARG), THE_NON_VALUE, (BIF), (SZFunc), (TBufFunc)} + +#define ERTS_L2B_STATE_MOVE(TO, FROM) \ + sys_memcpy((void *) (TO), (void *) (FROM), sizeof(ErtsL2BState)) + +typedef struct ErtsL2BState_ ErtsL2BState; + +struct ErtsL2BState_ { + ErtsIOList2BufState buf; + Eterm arg; Eterm bin; - Uint size; - byte* bytes; -#ifdef DEBUG - int offset; -#endif + Export *bif; + int (*iolist_to_buf_size)(ErtsIOListState *); + ErlDrvSizeT (*iolist_to_buf)(ErtsIOList2BufState *); +}; + +static ERTS_INLINE ErtsL2BResult +list_to_binary_engine(ErtsL2BState *sp) +{ + ErlDrvSizeT res; + Process *c_p = sp->buf.iolist.c_p; + + /* + * have_size == 0 while sp->iolist_to_buf_size() + * has not finished the calculation. + */ + + if (!sp->buf.iolist.have_size) { + switch (sp->iolist_to_buf_size(&sp->buf.iolist)) { + case ERTS_IOLIST_YIELD: + return ERTS_L2B_YIELD; + case ERTS_IOLIST_OVERFLOW: + return ERTS_L2B_OVERFLOW_ERROR; + case ERTS_IOLIST_TYPE: + return ERTS_L2B_TYPE_ERROR; + case ERTS_IOLIST_OK: + break; + default: + ASSERT(0); + break; + } + + ASSERT(sp->buf.iolist.have_size); + + /* + * Size calculated... Setup state for + * sp->iolist_to_buf_*() + */ + + sp->bin = new_binary(c_p, + (byte *) NULL, + sp->buf.iolist.size); - if (is_nil(arg)) { - BIF_RET(new_binary(p,(byte*)"",0)); + if (sp->buf.iolist.size == 0) + return ERTS_L2B_OK; + + sp->buf.buf = (char *) binary_bytes(sp->bin); + sp->buf.len = sp->buf.iolist.size; + sp->buf.iolist.obj = sp->arg; + + if (sp->buf.iolist.reds_left <= 0) { + BUMP_ALL_REDS(c_p); + return ERTS_L2B_YIELD; + } } - if (is_not_list(arg)) { - goto error; + + ASSERT(sp->buf.iolist.size != 0); + ASSERT(is_value(sp->bin)); + ASSERT(sp->buf.buf); + + res = sp->iolist_to_buf(&sp->buf); + + if (!ERTS_IOLIST_TO_BUF_FAILED(res)) { + ASSERT(res == 0); + return ERTS_L2B_OK; } - switch (erts_iolist_size(arg, &size)) { - case ERTS_IOLIST_OVERFLOW: BIF_ERROR(p, SYSTEM_LIMIT); - case ERTS_IOLIST_TYPE: goto error; - default: ; + + switch (res) { + case ERTS_IOLIST_TO_BUF_YIELD: + return ERTS_L2B_YIELD; + case ERTS_IOLIST_TO_BUF_OVERFLOW: + return ERTS_L2B_OVERFLOW_ERROR; + case ERTS_IOLIST_TO_BUF_TYPE_ERROR: + return ERTS_L2B_TYPE_ERROR; + default: + ERTS_INTERNAL_ERROR("Invalid return value from iolist_to_buf_yielding()"); + return ERTS_L2B_TYPE_ERROR; } - bin = new_binary(p, (byte *)NULL, size); - bytes = binary_bytes(bin); -#ifdef DEBUG - offset = -#endif - io_list_to_buf(arg, (char*) bytes, size); +} + +static void +l2b_state_destructor(Binary *mbp) +{ + ErtsL2BState *sp = ERTS_MAGIC_BIN_DATA(mbp); + ASSERT(ERTS_MAGIC_BIN_DESTRUCTOR(mbp) == l2b_state_destructor); + DESTROY_SAVED_ESTACK(&sp->buf.iolist.estack); +} + +static ERTS_INLINE Eterm +l2b_final_touch(Process *c_p, ErtsL2BState *sp) +{ + Eterm *hp; + ErlSubBin* sbin; + if (sp->buf.offset == 0) + return sp->bin; + + hp = HAlloc(c_p, ERL_SUB_BIN_SIZE); + ASSERT(sp->buf.offset > 0); + sbin = (ErlSubBin *) hp; + sbin->thing_word = HEADER_SUB_BIN; + sbin->size = sp->buf.iolist.size-1; + sbin->offs = 0; + sbin->orig = sp->bin; + sbin->bitoffs = 0; + sbin->bitsize = sp->buf.offset; + sbin->is_writable = 0; + return make_binary(sbin); +} + +static BIF_RETTYPE +list_to_binary_chunk(Eterm mb_eterm, + ErtsL2BState* sp, + int reds_left, + int gc_disabled) +{ + Eterm err = BADARG; + BIF_RETTYPE ret; + Process *c_p = sp->buf.iolist.c_p; - ASSERT(offset == 0); - BIF_RET(bin); + sp->buf.iolist.reds_left = reds_left; - error: - BIF_ERROR(p, BADARG); + switch (list_to_binary_engine(sp)) { + + case ERTS_L2B_OK: { + Eterm result = l2b_final_touch(c_p, sp); + if (!gc_disabled || !erts_set_gc_state(c_p, 1)) + ERTS_BIF_PREP_RET(ret, result); + else + ERTS_BIF_PREP_YIELD_RETURN(ret, c_p, result); + ASSERT(!(c_p->flags & F_DISABLE_GC)); + break; + } + case ERTS_L2B_YIELD: + if (!gc_disabled) { + /* first yield... */ + Eterm *hp; + Binary *mbp = erts_create_magic_binary(sizeof(ErtsL2BState), + l2b_state_destructor); + ErtsL2BState *new_sp = ERTS_MAGIC_BIN_DATA(mbp); + + ERTS_L2B_STATE_MOVE(new_sp, sp); + sp = new_sp; + + hp = HAlloc(c_p, PROC_BIN_SIZE); + mb_eterm = erts_mk_magic_binary_term(&hp, &MSO(c_p), mbp); + + ASSERT(is_value(mb_eterm)); + + erts_set_gc_state(c_p, 0); + } + + ASSERT(c_p->flags & F_DISABLE_GC); + + ERTS_BIF_PREP_TRAP1(ret, + &list_to_binary_continue_export, + c_p, + mb_eterm); + break; + + case ERTS_L2B_OVERFLOW_ERROR: + err = SYSTEM_LIMIT; + /* fall through */ + + case ERTS_L2B_TYPE_ERROR: + if (!gc_disabled) + ERTS_BIF_PREP_ERROR(ret, c_p, err); + else { + if (erts_set_gc_state(c_p, 1)) + ERTS_VBUMP_ALL_REDS(c_p); + + ERTS_BIF_PREP_ERROR_TRAPPED1(ret, + c_p, + err, + sp->bif, + sp->arg); + } + + ASSERT(!(c_p->flags & F_DISABLE_GC)); + break; + + default: + ERTS_INTERNAL_ERROR("Invalid return value from list_to_binary_engine()"); + ERTS_BIF_PREP_ERROR(ret,c_p, EXC_INTERNAL_ERROR); + break; + } + return ret; +} + +static BIF_RETTYPE list_to_binary_continue(BIF_ALIST_1) +{ + Binary *mbp = ((ProcBin *) binary_val(BIF_ARG_1))->val; + ASSERT(ERTS_MAGIC_BIN_DESTRUCTOR(mbp) == l2b_state_destructor); + + ASSERT(BIF_P->flags & F_DISABLE_GC); + + return list_to_binary_chunk(BIF_ARG_1, + ERTS_MAGIC_BIN_DATA(mbp), + ERTS_BIF_REDS_LEFT(BIF_P), + 1); +} + +BIF_RETTYPE erts_list_to_binary_bif(Process *c_p, Eterm arg, Export *bif) +{ + BIF_RETTYPE ret; + + if (is_nil(arg)) + ERTS_BIF_PREP_RET(ret, new_binary(c_p, (byte *) "", 0)); + else if (is_not_list(arg)) + ERTS_BIF_PREP_ERROR(ret, c_p, BADARG); + else { + /* check for [binary()] case */ + Eterm h = CAR(list_val(arg)); + Eterm t = CDR(list_val(arg)); + if (is_binary(h) + && is_nil(t) + && !(HEADER_SUB_BIN == *(binary_val(h)) + && (((ErlSubBin *)binary_val(h))->bitoffs != 0 + || ((ErlSubBin *)binary_val(h))->bitsize != 0))) { + ERTS_BIF_PREP_RET(ret, h); + } + else { + ErtsL2BState state = ERTS_L2B_STATE_INITER(c_p, + arg, + bif, + erts_iolist_size_yielding, + erts_iolist_to_buf_yielding); + int orig_reds_left = ERTS_BIF_REDS_LEFT(c_p); + + /* + * First try to do it all at once without having to use + * yielding iolist_to_buf(). + */ + state.buf.iolist.reds_left = orig_reds_left; + switch (erts_iolist_size_yielding(&state.buf.iolist)) { + case ERTS_IOLIST_OK: { + ErlDrvSizeT size = state.buf.iolist.size; + Eterm bin; + char *buf; + + if (size == 0) { + ERTS_BIF_PREP_RET(ret, new_binary(c_p, (byte *) NULL, 0)); + break; /* done */ + } + + bin = new_binary(c_p, (byte *) NULL, size); + buf = (char *) binary_bytes(bin); + + if (size < ERTS_IOLIST_TO_BUF_BYTES_PER_RED*CONTEXT_REDS) { + /* An (over) estimation of reductions needed */ + int reds_left = state.buf.iolist.reds_left; + int to_buf_reds = orig_reds_left - reds_left; + to_buf_reds += size/ERTS_IOLIST_TO_BUF_BYTES_PER_RED; + if (to_buf_reds <= reds_left) { + ErlDrvSizeT res; + + res = erts_iolist_to_buf(arg, buf, size); + if (res == 0) { + BUMP_REDS(c_p, to_buf_reds); + ERTS_BIF_PREP_RET(ret, bin); + break; /* done */ + } + if (!ERTS_IOLIST_TO_BUF_FAILED(res)) + ERTS_INTERNAL_ERROR("iolist_size/iolist_to_buf missmatch"); + if (res == ERTS_IOLIST_TO_BUF_OVERFLOW) + goto overflow; + goto type_error; + } + } + /* + * Since size has been computed list_to_binary_chunk() expects + * state prepared for iolist_to_buf. + */ + state.bin = bin; + state.buf.buf = buf; + state.buf.len = size; + state.buf.iolist.obj = arg; + /* Fall through... */ + } + case ERTS_IOLIST_YIELD: + ret = list_to_binary_chunk(THE_NON_VALUE, + &state, + state.buf.iolist.reds_left, + 0); + break; + case ERTS_IOLIST_OVERFLOW: + overflow: + ERTS_BIF_PREP_ERROR(ret, c_p, SYSTEM_LIMIT); + break; + case ERTS_IOLIST_TYPE: + type_error: + default: + ERTS_BIF_PREP_ERROR(ret, c_p, BADARG); + break; + } + } + } + return ret; } +HIPE_WRAPPER_BIF_DISABLE_GC(list_to_binary, 1) + BIF_RETTYPE list_to_binary_1(BIF_ALIST_1) { - return erts_list_to_binary_bif(BIF_P, BIF_ARG_1); + return erts_list_to_binary_bif(BIF_P, BIF_ARG_1, bif_export[BIF_list_to_binary_1]); } -/* Turn a possibly deep list of ints (and binaries) into */ -/* One large binary object */ +HIPE_WRAPPER_BIF_DISABLE_GC(iolist_to_binary, 1) BIF_RETTYPE iolist_to_binary_1(BIF_ALIST_1) { if (is_binary(BIF_ARG_1)) { BIF_RET(BIF_ARG_1); } - return erts_list_to_binary_bif(BIF_P, BIF_ARG_1); + return erts_list_to_binary_bif(BIF_P, BIF_ARG_1, bif_export[BIF_iolist_to_binary_1]); } +static int bitstr_list_len(ErtsIOListState *); +static ErlDrvSizeT list_to_bitstr_buf_yielding(ErtsIOList2BufState *); +static ErlDrvSizeT list_to_bitstr_buf_not_yielding(ErtsIOList2BufState *); + +HIPE_WRAPPER_BIF_DISABLE_GC(list_to_bitstring, 1) + BIF_RETTYPE list_to_bitstring_1(BIF_ALIST_1) { - Eterm bin; - Uint sz; - int offset; - byte* bytes; - ErlSubBin* sb1; - Eterm* hp; - - if (is_nil(BIF_ARG_1)) { - BIF_RET(new_binary(BIF_P,(byte*)"",0)); - } - if (is_not_list(BIF_ARG_1)) { - error: - BIF_ERROR(BIF_P, BADARG); - } - switch (bitstr_list_len(BIF_ARG_1, &sz)) { - case ERTS_IOLIST_TYPE: - goto error; - case ERTS_IOLIST_OVERFLOW: - BIF_ERROR(BIF_P, SYSTEM_LIMIT); - } - bin = new_binary(BIF_P, (byte *)NULL, sz); - bytes = binary_bytes(bin); -#ifdef DEBUG - offset = list_to_bitstr_buf(BIF_ARG_1, (char*) bytes, sz); -#else - offset = list_to_bitstr_buf(BIF_ARG_1, (char*) bytes); -#endif - ASSERT(offset >= 0); - if (offset > 0) { - hp = HAlloc(BIF_P, ERL_SUB_BIN_SIZE); - sb1 = (ErlSubBin *) hp; - sb1->thing_word = HEADER_SUB_BIN; - sb1->size = sz-1; - sb1->offs = 0; - sb1->orig = bin; - sb1->bitoffs = 0; - sb1->bitsize = offset; - sb1->is_writable = 0; - bin = make_binary(sb1); + BIF_RETTYPE ret; + + if (is_nil(BIF_ARG_1)) + ERTS_BIF_PREP_RET(ret, new_binary(BIF_P, (byte *) "", 0)); + else if (is_not_list(BIF_ARG_1)) + ERTS_BIF_PREP_ERROR(ret, BIF_P, BADARG); + else { + /* check for [bitstring()] case */ + Eterm h = CAR(list_val(BIF_ARG_1)); + Eterm t = CDR(list_val(BIF_ARG_1)); + if (is_binary(h) && is_nil(t)) { + ERTS_BIF_PREP_RET(ret, h); + } + else { + ErtsL2BState state = ERTS_L2B_STATE_INITER(BIF_P, + BIF_ARG_1, + bif_export[BIF_list_to_bitstring_1], + bitstr_list_len, + list_to_bitstr_buf_yielding); + int orig_reds_left = ERTS_BIF_REDS_LEFT(BIF_P); + + /* + * First try to do it all at once without having to use + * yielding list_to_bitstr_buf(). + */ + state.buf.iolist.reds_left = orig_reds_left; + switch (bitstr_list_len(&state.buf.iolist)) { + case ERTS_IOLIST_OK: { + ErlDrvSizeT size = state.buf.iolist.size; + + state.bin = new_binary(BIF_P, (byte *) NULL, size); + state.buf.buf = (char *) binary_bytes(state.bin); + state.buf.len = size; + state.buf.iolist.obj = BIF_ARG_1; + + if (size < ERTS_IOLIST_TO_BUF_BYTES_PER_RED*CONTEXT_REDS) { + /* An (over) estimation of reductions needed */ + int reds_left = state.buf.iolist.reds_left; + int to_buf_reds = orig_reds_left - reds_left; + to_buf_reds += size/ERTS_IOLIST_TO_BUF_BYTES_PER_RED; + if (to_buf_reds <= reds_left) { + ErlDrvSizeT res; + + res = list_to_bitstr_buf_not_yielding(&state.buf); + if (res == 0) { + Eterm res_bin = l2b_final_touch(BIF_P, &state); + BUMP_REDS(BIF_P, to_buf_reds); + ERTS_BIF_PREP_RET(ret, res_bin); + break; /* done */ + } + if (!ERTS_IOLIST_TO_BUF_FAILED(res)) + ERTS_INTERNAL_ERROR("iolist_size/iolist_to_buf missmatch"); + if (res == ERTS_IOLIST_TO_BUF_OVERFLOW) + goto overflow; + goto type_error; + } + } + /* + * Since size has been computed list_to_binary_chunk() expects + * the state prepared for list_to_bitstr_buf. + */ + + /* Fall through... */ + } + case ERTS_IOLIST_YIELD: + ret = list_to_binary_chunk(THE_NON_VALUE, + &state, + state.buf.iolist.reds_left, + 0); + break; + case ERTS_IOLIST_OVERFLOW: + overflow: + ERTS_BIF_PREP_ERROR(ret, BIF_P, SYSTEM_LIMIT); + break; + case ERTS_IOLIST_TYPE: + type_error: + default: + ERTS_BIF_PREP_ERROR(ret, BIF_P, BADARG); + break; + } + } } - - BIF_RET(bin); + + return ret; } BIF_RETTYPE split_binary_2(BIF_ALIST_2) @@ -502,123 +1058,353 @@ BIF_RETTYPE split_binary_2(BIF_ALIST_2) * Local functions. */ +static int +list_to_bitstr_buf_bcopy(ErtsIOList2BufState *state, Eterm obj, int *yield_countp); + /* * The input list is assumed to be type-correct and the buffer is * assumed to be of sufficient size. Those assumptions are verified in * the DEBUG-built emulator. */ -static int +static ErlDrvSizeT +list_to_bitstr_buf(int yield_support, ErtsIOList2BufState *state) +{ + +#undef LIST_TO_BITSTR_BUF_BCOPY_DBG +#undef LIST_TO_BITSTR_BUF_BCOPY #ifdef DEBUG -list_to_bitstr_buf(Eterm obj, char* buf, Uint len) +#define LIST_TO_BITSTR_BUF_BCOPY_DBG \ + len -= size + (offset>7); #else -list_to_bitstr_buf(Eterm obj, char* buf) +#define LIST_TO_BITSTR_BUF_BCOPY_DBG #endif -{ - Eterm* objp; - int offset = 0; +#define LIST_TO_BITSTR_BUF_BCOPY(CONSP) \ + do { \ + byte* bptr; \ + Uint bitsize; \ + Uint bitoffs; \ + Uint num_bits; \ + size_t size = binary_size(obj); \ + if (yield_support) { \ + size_t max_size = ERTS_IOLIST_TO_BUF_BYTES_PER_YIELD_COUNT; \ + if (yield_count > 0) \ + max_size *= yield_count+1; \ + if (size > max_size) { \ + state->objp = CONSP; \ + goto L_bcopy_yield; \ + } \ + if (size >= ERTS_IOLIST_TO_BUF_BYTES_PER_YIELD_COUNT) { \ + int cost = (int) size; \ + cost /= ERTS_IOLIST_TO_BUF_BYTES_PER_YIELD_COUNT; \ + yield_count -= cost; \ + } \ + } \ + ASSERT(size <= len); \ + ERTS_GET_BINARY_BYTES(obj, bptr, bitoffs, bitsize); \ + num_bits = 8*size+bitsize; \ + copy_binary_to_buffer(buf, offset, bptr, bitoffs, num_bits); \ + offset += bitsize; \ + buf += size + (offset>7); \ + LIST_TO_BITSTR_BUF_BCOPY_DBG; \ + offset = offset & 7; \ + } while(0) + +#ifdef DEBUG + ErlDrvSizeT len; +#endif + Eterm obj; + char *buf; + Eterm *objp = NULL; + int offset; + int init_yield_count = 0, yield_count; DECLARE_ESTACK(s); - goto L_again; - - while (!ESTACK_ISEMPTY(s)) { - obj = ESTACK_POP(s); - L_again: - if (is_list(obj)) { - L_iter_list: - objp = list_val(obj); - obj = CAR(objp); - if (is_byte(obj)) { - ASSERT(len > 0); - if (offset == 0) { - *buf++ = unsigned_val(obj); - } else { - *buf = (char)((unsigned_val(obj) >> offset) | - ((*buf >> (8-offset)) << (8-offset))); - buf++; - *buf = (unsigned_val(obj) << (8-offset)); - } + + obj = state->iolist.obj; + buf = state->buf; + offset = state->offset; #ifdef DEBUG - len--; + len = state->len; #endif - } else if (is_binary(obj)) { - byte* bptr; - size_t size = binary_size(obj); - Uint bitsize; - Uint bitoffs; - Uint num_bits; - - ASSERT(size <= len); - ERTS_GET_BINARY_BYTES(obj, bptr, bitoffs, bitsize); - num_bits = 8*size+bitsize; - copy_binary_to_buffer(buf, offset, bptr, bitoffs, num_bits); - offset += bitsize; - buf += size + (offset>7); + + if (!yield_support) { + yield_count = init_yield_count = 0; /* Shut up faulty warning... >:-( */ + goto L_again; + } + else { + + if (state->iolist.reds_left <= 0) + return ERTS_IOLIST_TO_BUF_YIELD; + + ESTACK_CHANGE_ALLOCATOR(s, ERTS_ALC_T_SAVED_ESTACK); + init_yield_count = (ERTS_IOLIST_TO_BUF_YIELD_COUNT_PER_RED + * state->iolist.reds_left); + yield_count = init_yield_count; + + if (!state->iolist.estack.start) + goto L_again; + else { + int chk_stack; + /* Restart; restore state... */ + ESTACK_RESTORE(s, &state->iolist.estack); + + if (!state->bcopy.bptr) + chk_stack = 0; + else { + chk_stack = 1; + if (list_to_bitstr_buf_bcopy(state, THE_NON_VALUE, &yield_count)) { + /* Yield again... */ + BUMP_ALL_REDS(state->iolist.c_p); + state->iolist.reds_left = 0; + ESTACK_SAVE(s, &state->iolist.estack); + return ERTS_IOLIST_TO_BUF_YIELD; + } + buf = state->buf; + offset = state->offset; #ifdef DEBUG - len -= size + (offset>7); + len = state->len; #endif - offset = offset & 7; - } else if (is_list(obj)) { - ESTACK_PUSH(s, CDR(objp)); - goto L_iter_list; /* on head */ - } else { - ASSERT(is_nil(obj)); } - obj = CDR(objp); - if (is_list(obj)) { - goto L_iter_list; /* on tail */ - } else if (is_binary(obj)) { - byte* bptr; - size_t size = binary_size(obj); - Uint bitsize; - Uint bitoffs; - Uint num_bits; - - ASSERT(size <= len); - ERTS_GET_BINARY_BYTES(obj, bptr, bitoffs, bitsize); - num_bits = 8*size+bitsize; - copy_binary_to_buffer(buf, offset, bptr, bitoffs, num_bits); - offset += bitsize; - buf += size+(offset>7); + objp = state->objp; + state->objp = NULL; + + if (objp) + goto L_tail; + if (!chk_stack) + goto L_again; + /* check stack */ + } + } + + while (!ESTACK_ISEMPTY(s)) { + obj = ESTACK_POP(s); + L_again: + if (is_list(obj)) { + while (1) { /* Tail loop */ + while (1) { /* Head loop */ + if (yield_support && --yield_count <= 0) + goto L_yield; + objp = list_val(obj); + obj = CAR(objp); + if (is_byte(obj)) { + ASSERT(len > 0); + if (offset == 0) { + *buf++ = unsigned_val(obj); + } else { + *buf = (char)((unsigned_val(obj) >> offset) | + ((*buf >> (8-offset)) << (8-offset))); + buf++; + *buf = (unsigned_val(obj) << (8-offset)); + } #ifdef DEBUG - len -= size+(offset>7); + len--; #endif - offset = offset & 7; - } else { - ASSERT(is_nil(obj)); + } else if (is_binary(obj)) { + LIST_TO_BITSTR_BUF_BCOPY(objp); + } else if (is_list(obj)) { + ESTACK_PUSH(s, CDR(objp)); + continue; /* Head loop */ + } else { + ASSERT(is_nil(obj)); + } + break; + } + + L_tail: + + obj = CDR(objp); + if (is_list(obj)) { + continue; /* Tail loop */ + } else if (is_binary(obj)) { + LIST_TO_BITSTR_BUF_BCOPY(NULL); + } else { + ASSERT(is_nil(obj)); + } + break; } } else if (is_binary(obj)) { - byte* bptr; - size_t size = binary_size(obj); - Uint bitsize; - Uint bitoffs; - Uint num_bits; - - ASSERT(size <= len); - ERTS_GET_BINARY_BYTES(obj, bptr, bitoffs, bitsize); - num_bits = 8*size+bitsize; - copy_binary_to_buffer(buf, offset, bptr, bitoffs, num_bits); - offset += bitsize; - buf += size + (offset>7); -#ifdef DEBUG - len -= size + (offset>7); -#endif - offset = offset & 7; + LIST_TO_BITSTR_BUF_BCOPY(NULL); } else { + if (yield_support && --yield_count <= 0) + goto L_yield; ASSERT(is_nil(obj)); } } DESTROY_ESTACK(s); - return offset; + + if (yield_support) { + int reds; + CLEAR_SAVED_ESTACK(&state->iolist.estack); + reds = ((init_yield_count - yield_count - 1) + / ERTS_IOLIST_TO_BUF_YIELD_COUNT_PER_RED) + 1; + BUMP_REDS(state->iolist.c_p, reds); + state->iolist.reds_left -= reds; + if (state->iolist.reds_left < 0) + state->iolist.reds_left = 0; + } + state->buf = buf; + state->offset = offset; + return 0; + +L_bcopy_yield: + + state->buf = buf; + state->offset = offset; +#ifdef DEBUG + state->len = len; +#endif + + if (list_to_bitstr_buf_bcopy(state, obj, &yield_count) == 0) + ERTS_INTERNAL_ERROR("Missing yield"); + + BUMP_ALL_REDS(state->iolist.c_p); + state->iolist.reds_left = 0; + ESTACK_SAVE(s, &state->iolist.estack); + return ERTS_IOLIST_TO_BUF_YIELD; + +L_yield: + + BUMP_ALL_REDS(state->iolist.c_p); + state->iolist.reds_left = 0; + state->iolist.obj = obj; + state->buf = buf; + state->offset = offset; + ESTACK_SAVE(s, &state->iolist.estack); +#ifdef DEBUG + state->len = len; +#endif + return ERTS_IOLIST_TO_BUF_YIELD; + + +#undef LIST_TO_BITSTR_BUF_BCOPY_DBG +#undef LIST_TO_BITSTR_BUF_BCOPY + +} + +static ErlDrvSizeT +list_to_bitstr_buf_yielding(ErtsIOList2BufState *state) +{ + return list_to_bitstr_buf(1, state); +} + +static ErlDrvSizeT +list_to_bitstr_buf_not_yielding(ErtsIOList2BufState *state) +{ + return list_to_bitstr_buf(0, state); +} + +static int +list_to_bitstr_buf_bcopy(ErtsIOList2BufState *state, Eterm obj, int *yield_countp) +{ + int res; + char *buf = state->buf; + char *next_buf; + int offset = state->offset; + int next_offset; +#ifdef DEBUG + ErlDrvSizeT len = state->len; + ErlDrvSizeT next_len; +#endif + byte* bptr; + size_t size; + size_t max_size; + Uint bitoffs; + Uint num_bits; + Uint bitsize; + int yield_count = *yield_countp; + + if (state->bcopy.bptr) { + bptr = state->bcopy.bptr; + size = state->bcopy.size; + bitoffs = state->bcopy.bitoffs; + bitsize = state->bcopy.bitsize; + state->bcopy.bptr = NULL; + } + else { + + ASSERT(is_binary(obj)); + + size = binary_size(obj); + + ASSERT(size <= len); + + ERTS_GET_BINARY_BYTES(obj, bptr, bitoffs, bitsize); + } + + max_size = (size_t) ERTS_IOLIST_TO_BUF_BYTES_PER_YIELD_COUNT; + if (yield_count > 0) + max_size *= (size_t) (yield_count+1); + + if (size <= max_size) { + if (size >= ERTS_IOLIST_TO_BUF_BYTES_PER_YIELD_COUNT) { + int cost = (int) size; + cost /= ERTS_IOLIST_TO_BUF_BYTES_PER_YIELD_COUNT; + yield_count -= cost; + } + next_offset = offset + bitsize; + next_buf = buf + size+(next_offset>7); +#ifdef DEBUG + next_len = len - size+(next_offset>7); +#endif + next_offset &= 7; + num_bits = 8*size+bitsize; + res = 0; + } + else { + ASSERT(0 < max_size && max_size < size); + yield_count = 0; + state->bcopy.bptr = bptr + max_size; + state->bcopy.bitoffs = bitoffs; + state->bcopy.bitsize = bitsize; + state->bcopy.size = size - max_size; + next_buf = buf + max_size; +#ifdef DEBUG + next_len = len - max_size; +#endif + next_offset = offset; + num_bits = 8*max_size; + size = max_size; + res = 1; + } + + copy_binary_to_buffer(buf, offset, bptr, bitoffs, num_bits); + + state->offset = next_offset; + state->buf = next_buf; +#ifdef DEBUG + state->len = next_len; +#endif + *yield_countp = yield_count; + + return res; } static int -bitstr_list_len(Eterm obj, Uint* num_bytes) +bitstr_list_len(ErtsIOListState *state) { Eterm* objp; - Uint len = 0; - Uint offs = 0; + Eterm obj; + Uint len, offs; + int res, init_yield_count, yield_count; DECLARE_ESTACK(s); + + if (state->reds_left <= 0) + return ERTS_IOLIST_YIELD; + + len = (Uint) state->size; + offs = state->offs; + obj = state->obj; + + ESTACK_CHANGE_ALLOCATOR(s, ERTS_ALC_T_SAVED_ESTACK); + init_yield_count = ERTS_IOLIST_SIZE_YIELDS_COUNT_PER_RED; + init_yield_count *= state->reds_left; + yield_count = init_yield_count; + if (state->estack.start) { + /* Restart; restore estack... */ + ESTACK_RESTORE(s, &state->estack); + } + goto L_again; #define SAFE_ADD(Var, Val) \ @@ -645,46 +1431,55 @@ bitstr_list_len(Eterm obj, Uint* num_bytes) obj = ESTACK_POP(s); L_again: if (is_list(obj)) { - L_iter_list: - objp = list_val(obj); - /* Head */ - obj = CAR(objp); - if (is_byte(obj)) { - len++; - if (len == 0) { - goto L_overflow_error; + while (1) { /* Tail loop */ + while (1) { /* Head loop */ + if (--yield_count <= 0) + goto L_yield; + objp = list_val(obj); + /* Head */ + obj = CAR(objp); + if (is_byte(obj)) { + len++; + if (len == 0) { + goto L_overflow_error; + } + } else if (is_binary(obj)) { + SAFE_ADD(len, binary_size(obj)); + SAFE_ADD_BITSIZE(offs, obj); + } else if (is_list(obj)) { + ESTACK_PUSH(s, CDR(objp)); + continue; /* Head loop */ + } else if (is_not_nil(obj)) { + goto L_type_error; + } + break; } - } else if (is_binary(obj)) { - SAFE_ADD(len, binary_size(obj)); - SAFE_ADD_BITSIZE(offs, obj); - } else if (is_list(obj)) { - ESTACK_PUSH(s, CDR(objp)); - goto L_iter_list; /* on head */ - } else if (is_not_nil(obj)) { - goto L_type_error; + /* Tail */ + obj = CDR(objp); + if (is_list(obj)) + continue; /* Tail loop */ + else if (is_binary(obj)) { + SAFE_ADD(len, binary_size(obj)); + SAFE_ADD_BITSIZE(offs, obj); + } else if (is_not_nil(obj)) { + goto L_type_error; + } + break; } - /* Tail */ - obj = CDR(objp); - if (is_list(obj)) - goto L_iter_list; /* on tail */ - else if (is_binary(obj)) { + } else { + if (--yield_count <= 0) + goto L_yield; + if (is_binary(obj)) { SAFE_ADD(len, binary_size(obj)); SAFE_ADD_BITSIZE(offs, obj); } else if (is_not_nil(obj)) { goto L_type_error; } - } else if (is_binary(obj)) { - SAFE_ADD(len, binary_size(obj)); - SAFE_ADD_BITSIZE(offs, obj); - } else if (is_not_nil(obj)) { - goto L_type_error; } } #undef SAFE_ADD #undef SAFE_ADD_BITSIZE - DESTROY_ESTACK(s); - /* * Make sure that the number of bits in the bitstring will fit * in an Uint to ensure that the binary can be matched using @@ -697,15 +1492,42 @@ bitstr_list_len(Eterm obj, Uint* num_bytes) if (len << 3 < len) { goto L_overflow_error; } - *num_bytes = len; - return ERTS_IOLIST_OK; + state->size = len; - L_type_error: - DESTROY_ESTACK(s); - return ERTS_IOLIST_TYPE; + res = ERTS_IOLIST_OK; + + L_return: { + int yc = init_yield_count - yield_count; + int reds; + + DESTROY_ESTACK(s); + CLEAR_SAVED_ESTACK(&state->estack); + + reds = (yc - 1)/ERTS_IOLIST_SIZE_YIELDS_COUNT_PER_RED + 1; + BUMP_REDS(state->c_p, reds); + state->reds_left -= reds; + state->size = (ErlDrvSizeT) len; + state->have_size = 1; + return res; + } L_overflow_error: - DESTROY_ESTACK(s); - return ERTS_IOLIST_OVERFLOW; + res = ERTS_IOLIST_OVERFLOW; + len = 0; + goto L_return; + + L_type_error: + res = ERTS_IOLIST_TYPE; + len = 0; + goto L_return; + + L_yield: + BUMP_ALL_REDS(state->c_p); + state->reds_left = 0; + state->size = len; + state->offs = offs; + state->obj = obj; + ESTACK_SAVE(s, &state->estack); + return ERTS_IOLIST_YIELD; } diff --git a/erts/emulator/beam/break.c b/erts/emulator/beam/break.c index f7e9f15655..7d4f52ee23 100644 --- a/erts/emulator/beam/break.c +++ b/erts/emulator/beam/break.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 1996-2012. All Rights Reserved. + * Copyright Ericsson AB 1996-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -61,19 +61,26 @@ extern char* erts_system_version[]; static void port_info(int to, void *to_arg) { - int i; - for (i = 0; i < erts_max_ports; i++) - print_port_info(to, to_arg, i); + int i, max = erts_ptab_max(&erts_port); + for (i = 0; i < max; i++) { + Port *p = erts_pix2port(i); + if (p) + print_port_info(p, to, to_arg); + } } void process_info(int to, void *to_arg) { - int i; - for (i = 0; i < erts_max_processes; i++) { - if ((process_tab[i] != NULL) && (process_tab[i]->i != ENULL)) { - if (process_tab[i]->status != P_EXITING) - print_process_info(to, to_arg, process_tab[i]); + int i, max = erts_ptab_max(&erts_proc); + for (i = 0; i < max; i++) { + Process *p = erts_pix2proc(i); + if (p && p->i != ENULL) { + /* Do not include processes with no heap, + * they are most likely just created and has invalid data + */ + if (!ERTS_PROC_IS_EXITING(p) && p->heap != NULL) + print_process_info(to, to_arg, p); } } @@ -83,13 +90,14 @@ process_info(int to, void *to_arg) static void process_killer(void) { - int i, j; + int i, j, max = erts_ptab_max(&erts_proc); Process* rp; erts_printf("\n\nProcess Information\n\n"); erts_printf("--------------------------------------------------\n"); - for (i = erts_max_processes-1; i >= 0; i--) { - if (((rp = process_tab[i]) != NULL) && rp->i != ENULL) { + for (i = max-1; i >= 0; i--) { + rp = erts_pix2proc(i); + if (rp && rp->i != ENULL) { int br; print_process_info(ERTS_PRINT_STDOUT, NULL, rp); erts_printf("(k)ill (n)ext (r)eturn:\n"); @@ -97,11 +105,22 @@ process_killer(void) if ((j = sys_get_key(0)) <= 0) erl_exit(0, ""); switch(j) { - case 'k': - if (rp->status == P_WAITING) { - ErtsProcLocks rp_locks = ERTS_PROC_LOCKS_XSIG_SEND; - erts_smp_proc_inc_refc(rp); - erts_smp_proc_lock(rp, rp_locks); + case 'k': { + ErtsProcLocks rp_locks = ERTS_PROC_LOCKS_XSIG_SEND; + erts_aint32_t state; + erts_smp_proc_inc_refc(rp); + erts_smp_proc_lock(rp, rp_locks); + state = erts_smp_atomic32_read_acqb(&rp->state); + if (state & (ERTS_PSFLG_FREE + | ERTS_PSFLG_EXITING + | ERTS_PSFLG_ACTIVE + | ERTS_PSFLG_ACTIVE_SYS + | ERTS_PSFLG_IN_RUNQ + | ERTS_PSFLG_RUNNING + | ERTS_PSFLG_RUNNING_SYS)) { + erts_printf("Can only kill WAITING processes this way\n"); + } + else { (void) erts_send_exit_signal(NULL, NIL, rp, @@ -110,12 +129,10 @@ process_killer(void) NIL, NULL, 0); - erts_smp_proc_unlock(rp, rp_locks); - erts_smp_proc_dec_refc(rp); } - else - erts_printf("Can only kill WAITING processes this way\n"); - + erts_smp_proc_unlock(rp, rp_locks); + erts_smp_proc_dec_refc(rp); + } case 'n': br = 1; break; case 'r': return; default: return; @@ -180,49 +197,45 @@ static void doit_print_monitor(ErtsMonitor *mon, void *vpcontext) void print_process_info(int to, void *to_arg, Process *p) { + time_t approx_started; int garbing = 0; int running = 0; - time_t tmp_t; struct saved_calls *scb; + erts_aint32_t state; /* display the PID */ - erts_print(to, to_arg, "=proc:%T\n", p->id); + erts_print(to, to_arg, "=proc:%T\n", p->common.id); /* Display the state */ erts_print(to, to_arg, "State: "); - switch (p->status) { - case P_FREE: + + state = erts_smp_atomic32_read_acqb(&p->state); + if (state & ERTS_PSFLG_FREE) erts_print(to, to_arg, "Non Existing\n"); /* Should never happen */ - break; - case P_RUNABLE: - erts_print(to, to_arg, "Scheduled\n"); - break; - case P_WAITING: - erts_print(to, to_arg, "Waiting\n"); - break; - case P_SUSPENDED: - erts_print(to, to_arg, "Suspended\n"); - break; - case P_RUNNING: - erts_print(to, to_arg, "Running\n"); - running = 1; - break; - case P_EXITING: + else if (state & ERTS_PSFLG_EXITING) erts_print(to, to_arg, "Exiting\n"); - break; - case P_GARBING: - erts_print(to, to_arg, "Garbing\n"); + else if (state & ERTS_PSFLG_GC) { garbing = 1; running = 1; - break; + erts_print(to, to_arg, "Garbing\n"); + } + else if (state & ERTS_PSFLG_SUSPENDED) + erts_print(to, to_arg, "Suspended\n"); + else if (state & ERTS_PSFLG_RUNNING) { + running = 1; + erts_print(to, to_arg, "Running\n"); } + else if (state & ERTS_PSFLG_ACTIVE) + erts_print(to, to_arg, "Scheduled\n"); + else + erts_print(to, to_arg, "Waiting\n"); /* * If the process is registered as a global process, display the * registered name */ - if (p->reg != NULL) - erts_print(to, to_arg, "Name: %T\n", p->reg->name); + if (p->common.u.alive.reg) + erts_print(to, to_arg, "Name: %T\n", p->common.u.alive.reg->name); /* * Display the initial function name @@ -245,8 +258,8 @@ print_process_info(int to, void *to_arg, Process *p) } erts_print(to, to_arg, "Spawned by: %T\n", p->parent); - tmp_t = p->started.tv_sec; - erts_print(to, to_arg, "Started: %s", ctime(&tmp_t)); + approx_started = (time_t) p->approx_started; + erts_print(to, to_arg, "Started: %s", ctime(&approx_started)); ERTS_SMP_MSGQ_MV_INQ2PRIVQ(p); erts_print(to, to_arg, "Message queue length: %d\n", p->msg.len); @@ -296,11 +309,11 @@ print_process_info(int to, void *to_arg, Process *p) } /* display the links only if there are any*/ - if (p->nlinks != NULL || p->monitors != NULL) { + if (ERTS_P_LINKS(p) || ERTS_P_MONITORS(p)) { PrintMonitorContext context = {1,to}; erts_print(to, to_arg,"Link list: ["); - erts_doforall_links(p->nlinks, &doit_print_link, &context); - erts_doforall_monitors(p->monitors, &doit_print_monitor, &context); + erts_doforall_links(ERTS_P_LINKS(p), &doit_print_link, &context); + erts_doforall_monitors(ERTS_P_MONITORS(p), &doit_print_monitor, &context); erts_print(to, to_arg,"]\n"); } @@ -323,6 +336,7 @@ print_process_info(int to, void *to_arg, Process *p) erts_print(to, to_arg, "Heap unused: %bpu\n", (p->hend - p->htop)); erts_print(to, to_arg, "OldHeap unused: %bpu\n", (OLD_HEAP(p) == NULL) ? 0 : (OLD_HEND(p) - OLD_HTOP(p)) ); + erts_print(to, to_arg, "Memory: %beu\n", erts_process_memory(p)); if (garbing) { print_garb_info(to, to_arg, p); @@ -377,17 +391,22 @@ loaded(int to, void *to_arg) int old = 0; int cur = 0; BeamInstr* code; + Module* modp; + ErtsCodeIndex code_ix; + + code_ix = erts_active_code_ix(); + erts_rlock_old_code(code_ix); /* * Calculate and print totals. */ - for (i = 0; i < module_code_size(); i++) { - if (module_code(i) != NULL && - ((module_code(i)->code_length != 0) || - (module_code(i)->old_code_length != 0))) { - cur += module_code(i)->code_length; - if (module_code(i)->old_code_length != 0) { - old += module_code(i)->old_code_length; + for (i = 0; i < module_code_size(code_ix); i++) { + if ((modp = module_code(i, code_ix)) != NULL && + ((modp->curr.code_length != 0) || + (modp->old.code_length != 0))) { + cur += modp->curr.code_length; + if (modp->old.code_length != 0) { + old += modp->old.code_length; } } } @@ -398,21 +417,22 @@ loaded(int to, void *to_arg) * Print one line per module. */ - for (i = 0; i < module_code_size(); i++) { + for (i = 0; i < module_code_size(code_ix); i++) { + modp = module_code(i, code_ix); if (!ERTS_IS_CRASH_DUMPING) { /* * Interactive dump; keep it brief. */ - if (module_code(i) != NULL && - ((module_code(i)->code_length != 0) || - (module_code(i)->old_code_length != 0))) { - erts_print(to, to_arg, "%T", make_atom(module_code(i)->module)); - cur += module_code(i)->code_length; - erts_print(to, to_arg, " %d", module_code(i)->code_length ); - if (module_code(i)->old_code_length != 0) { + if (modp != NULL && + ((modp->curr.code_length != 0) || + (modp->old.code_length != 0))) { + erts_print(to, to_arg, "%T", make_atom(modp->module)); + cur += modp->curr.code_length; + erts_print(to, to_arg, " %d", modp->curr.code_length ); + if (modp->old.code_length != 0) { erts_print(to, to_arg, " (%d old)", - module_code(i)->old_code_length ); - old += module_code(i)->old_code_length; + modp->old.code_length ); + old += modp->old.code_length; } erts_print(to, to_arg, "\n"); } @@ -420,15 +440,15 @@ loaded(int to, void *to_arg) /* * To crash dump; make it parseable. */ - if (module_code(i) != NULL && - ((module_code(i)->code_length != 0) || - (module_code(i)->old_code_length != 0))) { + if (modp != NULL && + ((modp->curr.code_length != 0) || + (modp->old.code_length != 0))) { erts_print(to, to_arg, "=mod:"); - erts_print(to, to_arg, "%T", make_atom(module_code(i)->module)); + erts_print(to, to_arg, "%T", make_atom(modp->module)); erts_print(to, to_arg, "\n"); erts_print(to, to_arg, "Current size: %d\n", - module_code(i)->code_length); - code = module_code(i)->code; + modp->curr.code_length); + code = modp->curr.code; if (code != NULL && code[MI_ATTR_PTR]) { erts_print(to, to_arg, "Current attributes: "); dump_attributes(to, to_arg, (byte *) code[MI_ATTR_PTR], @@ -440,9 +460,9 @@ loaded(int to, void *to_arg) code[MI_COMPILE_SIZE]); } - if (module_code(i)->old_code_length != 0) { - erts_print(to, to_arg, "Old size: %d\n", module_code(i)->old_code_length); - code = module_code(i)->old_code; + if (modp->old.code_length != 0) { + erts_print(to, to_arg, "Old size: %d\n", modp->old.code_length); + code = modp->old.code; if (code[MI_ATTR_PTR]) { erts_print(to, to_arg, "Old attributes: "); dump_attributes(to, to_arg, (byte *) code[MI_ATTR_PTR], @@ -457,6 +477,7 @@ loaded(int to, void *to_arg) } } } + erts_runlock_old_code(code_ix); } @@ -613,16 +634,17 @@ bin_check(void) { Process *rp; struct erl_off_heap_header* hdr; - int i, printed = 0; + int i, printed = 0, max = erts_ptab_max(&erts_proc); - for (i=0; i < erts_max_processes; i++) { - if ((rp = process_tab[i]) == NULL) + for (i=0; i < max; i++) { + rp = erts_pix2proc(i); + if (!rp) continue; for (hdr = rp->off_heap.first; hdr; hdr = hdr->next) { if (hdr->thing_word == HEADER_PROC_BIN) { ProcBin *bp = (ProcBin*) hdr; if (!printed) { - erts_printf("Process %T holding binary data \n", rp->id); + erts_printf("Process %T holding binary data \n", rp->common.id); printed = 1; } erts_printf("%p orig_size: %bpd, norefs = %bpd\n", @@ -737,7 +759,7 @@ erl_crash_dump_v(char *file, int line, char* fmt, va_list args) return; /* Can't create the crash dump, skip it */ time(&now); - erts_fdprintf(fd, "=erl_crash_dump:0.1\n%s", ctime(&now)); + erts_fdprintf(fd, "=erl_crash_dump:0.3\n%s", ctime(&now)); if (file != NULL) erts_fdprintf(fd, "The error occurred in file %s, line %d\n", file, line); @@ -753,7 +775,7 @@ erl_crash_dump_v(char *file, int line, char* fmt, va_list args) erts_print_nif_taints(fd, NULL); erts_fdprintf(fd, "Atoms: %d\n", atom_table_size()); info(fd, NULL); /* General system info */ - if (process_tab != NULL) /* XXX true at init */ + if (erts_ptab_initialized(&erts_proc)) process_info(fd, NULL); /* Info about each process and port */ db_info(fd, NULL, 0); erts_print_bif_timer_info(fd, NULL); diff --git a/erts/emulator/beam/code_ix.c b/erts/emulator/beam/code_ix.c new file mode 100644 index 0000000000..4344558348 --- /dev/null +++ b/erts/emulator/beam/code_ix.c @@ -0,0 +1,169 @@ +/* + * %CopyrightBegin% + * + * Copyright Ericsson AB 2012. All Rights Reserved. + * + * The contents of this file are subject to the Erlang Public License, + * Version 1.1, (the "License"); you may not use this file except in + * compliance with the License. You should have received a copy of the + * Erlang Public License along with this software. If not, it can be + * retrieved online at http://www.erlang.org/. + * + * Software distributed under the License is distributed on an "AS IS" + * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See + * the License for the specific language governing rights and limitations + * under the License. + * + * %CopyrightEnd% + */ + +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif + +#include "code_ix.h" +#include "global.h" +#include "beam_catches.h" + + + +#if 0 +# define CIX_TRACE(text) erts_fprintf(stderr, "CIX_TRACE: " text " act=%u load=%u\r\n", erts_active_code_ix(), erts_staging_code_ix()) +#else +# define CIX_TRACE(text) +#endif + +erts_smp_atomic32_t the_active_code_index; +erts_smp_atomic32_t the_staging_code_index; + +static Process* code_writing_process = NULL; +struct code_write_queue_item { + Process *p; + struct code_write_queue_item* next; +}; +static struct code_write_queue_item* code_write_queue = NULL; +static erts_smp_mtx_t code_write_permission_mtx; + +#ifdef ERTS_ENABLE_LOCK_CHECK +static erts_tsd_key_t has_code_write_permission; +#endif + +void erts_code_ix_init(void) +{ + /* We start emulator by initializing preloaded modules + * single threaded with active and staging set both to zero. + * Preloading is finished by a commit that will set things straight. + */ + erts_smp_atomic32_init_nob(&the_active_code_index, 0); + erts_smp_atomic32_init_nob(&the_staging_code_index, 0); + erts_smp_mtx_init(&code_write_permission_mtx, "code_write_permission"); +#ifdef ERTS_ENABLE_LOCK_CHECK + erts_tsd_key_create(&has_code_write_permission, + "erts_has_code_write_permission"); +#endif + CIX_TRACE("init"); +} + +void erts_start_staging_code_ix(void) +{ + beam_catches_start_staging(); + export_start_staging(); + module_start_staging(); + erts_start_staging_ranges(); + CIX_TRACE("start"); +} + + +void erts_end_staging_code_ix(void) +{ + beam_catches_end_staging(1); + export_end_staging(1); + module_end_staging(1); + erts_end_staging_ranges(1); + CIX_TRACE("end"); +} + +void erts_commit_staging_code_ix(void) +{ + ErtsCodeIndex ix; + /* We need to this lock as we are now making the staging export table active */ + export_staging_lock(); + ix = erts_staging_code_ix(); + erts_smp_atomic32_set_nob(&the_active_code_index, ix); + ix = (ix + 1) % ERTS_NUM_CODE_IX; + erts_smp_atomic32_set_nob(&the_staging_code_index, ix); + export_staging_unlock(); + CIX_TRACE("activate"); +} + +void erts_abort_staging_code_ix(void) +{ + beam_catches_end_staging(0); + export_end_staging(0); + module_end_staging(0); + erts_end_staging_ranges(0); + CIX_TRACE("abort"); +} + + +/* + * Calller _must_ yield if we return 0 + */ +int erts_try_seize_code_write_permission(Process* c_p) +{ + int success; +#ifdef ERTS_SMP + ASSERT(!erts_smp_thr_progress_is_blocking()); /* to avoid deadlock */ +#endif + ASSERT(c_p != NULL); + + erts_smp_mtx_lock(&code_write_permission_mtx); + success = (code_writing_process == NULL); + if (success) { + code_writing_process = c_p; +#ifdef ERTS_ENABLE_LOCK_CHECK + erts_tsd_set(has_code_write_permission, (void *) 1); +#endif + } + else { /* Already locked */ + struct code_write_queue_item* qitem; + ASSERT(code_writing_process != c_p); + qitem = erts_alloc(ERTS_ALC_T_CODE_IX_LOCK_Q, sizeof(*qitem)); + qitem->p = c_p; + erts_smp_proc_inc_refc(c_p); + qitem->next = code_write_queue; + code_write_queue = qitem; + erts_suspend(c_p, ERTS_PROC_LOCK_MAIN, NULL); + } + erts_smp_mtx_unlock(&code_write_permission_mtx); + return success; +} + +void erts_release_code_write_permission(void) +{ + erts_smp_mtx_lock(&code_write_permission_mtx); + ERTS_SMP_LC_ASSERT(erts_has_code_write_permission()); + while (code_write_queue != NULL) { /* unleash the entire herd */ + struct code_write_queue_item* qitem = code_write_queue; + erts_smp_proc_lock(qitem->p, ERTS_PROC_LOCK_STATUS); + if (!ERTS_PROC_IS_EXITING(qitem->p)) { + erts_resume(qitem->p, ERTS_PROC_LOCK_STATUS); + } + erts_smp_proc_unlock(qitem->p, ERTS_PROC_LOCK_STATUS); + code_write_queue = qitem->next; + erts_smp_proc_dec_refc(qitem->p); + erts_free(ERTS_ALC_T_CODE_IX_LOCK_Q, qitem); + } + code_writing_process = NULL; +#ifdef ERTS_ENABLE_LOCK_CHECK + erts_tsd_set(has_code_write_permission, (void *) 0); +#endif + erts_smp_mtx_unlock(&code_write_permission_mtx); +} + +#ifdef ERTS_ENABLE_LOCK_CHECK +int erts_has_code_write_permission(void) +{ + return (code_writing_process != NULL) && erts_tsd_get(has_code_write_permission); +} +#endif diff --git a/erts/emulator/beam/code_ix.h b/erts/emulator/beam/code_ix.h new file mode 100644 index 0000000000..16ad900228 --- /dev/null +++ b/erts/emulator/beam/code_ix.h @@ -0,0 +1,142 @@ +/* + * %CopyrightBegin% + * + * Copyright Ericsson AB 2012-2013. All Rights Reserved. + * + * The contents of this file are subject to the Erlang Public License, + * Version 1.1, (the "License"); you may not use this file except in + * compliance with the License. You should have received a copy of the + * Erlang Public License along with this software. If not, it can be + * retrieved online at http://www.erlang.org/. + * + * Software distributed under the License is distributed on an "AS IS" + * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See + * the License for the specific language governing rights and limitations + * under the License. + * + * %CopyrightEnd% + */ + +/* Description: + * This is the interface that facilitates changing the beam code + * (load,upgrade,delete) while allowing executing Erlang processes to + * access the code without any locks or other expensive memory barriers. + * + * The basic idea is to maintain several "logical copies" of the code. These + * copies are identified by a global 'code index', an integer of 0, 1 or 2. + * The code index is used as argument to code access structures like + * export, module, beam_catches, beam_ranges. + * + * The current 'active' code index is used to access the current running + * code. The 'staging' code index is used by the process that performs + * a code change operation. When a code change operation completes + * succesfully, the staging code index becomes the new active code index. + * + * The third code index is not explicitly used. It can be thought of as + * the "previous active" or the "next staging" index. It is needed to make + * sure that we do not reuse a code index for staging until we are sure + * that no executing BIFs are still referencing it. + * We could get by with only two (0 and 1), but that would require that we + * must wait for all schedulers to re-schedule before each code change + * operation can start staging. + * + * Note that the 'code index' is very loosely coupled to the concept of + * 'current' and 'old' module versions. You can almost say that they are + * orthogonal to each other. Code index is an emulator global concept while + * 'current' and 'old' is specific for each module. + */ + +#ifndef __CODE_IX_H__ +#define __CODE_IX_H__ + +#ifndef __SYS_H__ +# ifdef HAVE_CONFIG_H +# include "config.h" +# endif +# include "sys.h" +#endif +struct process; + + +#define ERTS_NUM_CODE_IX 3 +typedef unsigned ErtsCodeIndex; + + +/* Called once at emulator initialization. + */ +void erts_code_ix_init(void); + +/* Return active code index. + * Is guaranteed to be valid until the calling BIF returns. + * To get a consistent view of the code, only one call to erts_active_code_ix() + * should be made and the returned ix reused within the same BIF call. + */ +ERTS_GLB_INLINE +ErtsCodeIndex erts_active_code_ix(void); + +/* Return staging code ix. + * Only used by a process performing code loading/upgrading/deleting/purging. + * Code write permission must be seized. + */ +ERTS_GLB_INLINE +ErtsCodeIndex erts_staging_code_ix(void); + +/* Try seize exclusive code write permission. Needed for code staging. + * Main process lock (only) must be held. + * System thread progress must not be blocked. + * Caller must not already hold the code write permission. + * Caller is suspended and *must* yield if 0 is returned. + */ +int erts_try_seize_code_write_permission(struct process* c_p); + +/* Release code write permission. + * Will resume any suspended waiters. + */ +void erts_release_code_write_permission(void); + +/* Prepare the "staging area" to be a complete copy of the active code. + * Code write permission must have been seized. + * Must be followed by calls to either "end" and "commit" or "abort" before + * code write permission can be released. + */ +void erts_start_staging_code_ix(void); + +/* End the staging. + * Preceded by "start" and must be followed by "commit". + */ +void erts_end_staging_code_ix(void); + +/* Set staging code index as new active code index. + * Preceded by "end". + */ +void erts_commit_staging_code_ix(void); + +/* Abort the staging. + * Preceded by "start". + */ +void erts_abort_staging_code_ix(void); + +#ifdef ERTS_ENABLE_LOCK_CHECK +int erts_has_code_write_permission(void); +#endif + + + +#if ERTS_GLB_INLINE_INCL_FUNC_DEF + +extern erts_smp_atomic32_t the_active_code_index; +extern erts_smp_atomic32_t the_staging_code_index; + +ERTS_GLB_INLINE ErtsCodeIndex erts_active_code_ix(void) +{ + return erts_smp_atomic32_read_nob(&the_active_code_index); +} +ERTS_GLB_INLINE ErtsCodeIndex erts_staging_code_ix(void) +{ + return erts_smp_atomic32_read_nob(&the_staging_code_index); +} + +#endif /* ERTS_GLB_INLINE_INCL_FUNC_DEF */ + +#endif /* !__CODE_IX_H__ */ + diff --git a/erts/emulator/beam/copy.c b/erts/emulator/beam/copy.c index 36eda04de2..50548850eb 100644 --- a/erts/emulator/beam/copy.c +++ b/erts/emulator/beam/copy.c @@ -27,6 +27,7 @@ #include "erl_process.h" #include "erl_gc.h" #include "big.h" +#include "erl_map.h" #include "erl_binary.h" #include "erl_bits.h" #include "dtrace-wrapper.h" @@ -47,7 +48,8 @@ copy_object(Eterm obj, Process* to) if (DTRACE_ENABLED(copy_object)) { DTRACE_CHARBUF(proc_name, 64); - erts_snprintf(proc_name, sizeof(proc_name), "%T", to->id); + erts_snprintf(proc_name, sizeof(DTRACE_CHARBUF_NAME(proc_name)), + "%T", to->common.id); DTRACE2(copy_object, proc_name, size); } #endif @@ -150,6 +152,24 @@ Uint size_object(Eterm obj) goto pop_next; } break; + case MAP_SUBTAG: + { + Uint n; + map_t *mp; + mp = (map_t*)map_val_rel(obj,base); + ptr = (Eterm *)mp; + n = map_get_size(mp) + 1; + sum += n + 2; + ptr += 2; /* hdr + size words */ + while (n--) { + obj = *ptr++; + if (!IS_CONST(obj)) { + ESTACK_PUSH(s, obj); + } + } + goto pop_next; + } + break; case BIN_MATCHSTATE_SUBTAG: erl_exit(ERTS_ABORT_EXIT, "size_object: matchstate term not allowed"); @@ -318,6 +338,15 @@ Eterm copy_struct(Eterm obj, Uint sz, Eterm** hpp, ErlOffHeap* off_heap) } } break; + case MAP_SUBTAG: + { + i = map_get_size(objp) + 3; + *argp = make_map_rel(htop, dst_base); + while (i--) { + *htop++ = *objp++; + } + } + break; case REFC_BINARY_SUBTAG: { ProcBin* pb; @@ -537,6 +566,10 @@ Eterm copy_shallow(Eterm* ptr, Uint sz, Eterm** hpp, ErlOffHeap* off_heap) } goto off_heap_common; + case MAP_SUBTAG: + *hp++ = *tp++; + sz--; + break; case EXTERNAL_PID_SUBTAG: case EXTERNAL_PORT_SUBTAG: case EXTERNAL_REF_SUBTAG: diff --git a/erts/emulator/beam/dist.c b/erts/emulator/beam/dist.c index 025258e8de..ec07ddcd9c 100644 --- a/erts/emulator/beam/dist.c +++ b/erts/emulator/beam/dist.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 1996-2012. All Rights Reserved. + * Copyright Ericsson AB 1996-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -67,7 +67,7 @@ dist_msg_dbg(ErtsDistExternal *edep, char *what, byte *buf, int sz) { byte *extp = edep->extp; Eterm msg; - Sint size = erts_decode_dist_ext_size(edep, 0); + Sint size = erts_decode_dist_ext_size(edep); if (size < 0) { erts_fprintf(stderr, "DIST MSG DEBUG: erts_decode_dist_ext_size(%s) failed:\n", @@ -124,6 +124,13 @@ static void send_nodes_mon_msgs(Process *, Eterm, Eterm, Eterm, Eterm); static void init_nodes_monitors(void); static erts_smp_atomic_t no_caches; +static erts_smp_atomic_t no_nodes; + +struct { + Eterm reason; + ErlHeapFragment *bp; +} nodedown; + static void delete_cache(ErtsAtomCache *cache) @@ -144,7 +151,7 @@ create_cache(DistEntry *dep) ERTS_SMP_LC_ASSERT( is_internal_port(dep->cid) - && erts_lc_is_port_locked(&erts_port[internal_port_index(dep->cid)])); + && erts_lc_is_port_locked(erts_port_lookup_raw(dep->cid))); ASSERT(!dep->cache); dep->cache = cp = (ErtsAtomCache*) erts_alloc(ERTS_ALC_T_DCACHE, @@ -171,11 +178,10 @@ get_suspended_on_de(DistEntry *dep, Uint32 unset_qflgs) return NULL; } else { - ErtsProcList *plp; - plp = dep->suspended.first; - dep->suspended.first = NULL; - dep->suspended.last = NULL; - return plp; + ErtsProcList *suspended = dep->suspended; + dep->suspended = NULL; + erts_proclist_fetch(&suspended, NULL); + return suspended; } } @@ -252,7 +258,7 @@ static void doit_monitor_net_exits(ErtsMonitor *mon, void *vnecp) if (mon->type == MON_ORIGIN) { /* local pid is beeing monitored */ - rmon = erts_remove_monitor(&(rp->monitors),mon->ref); + rmon = erts_remove_monitor(&ERTS_P_MONITORS(rp), mon->ref); /* ASSERT(rmon != NULL); nope, can happen during process exit */ if (rmon != NULL) { erts_destroy_monitor(rmon); @@ -262,7 +268,7 @@ static void doit_monitor_net_exits(ErtsMonitor *mon, void *vnecp) Eterm watched; UseTmpHeapNoproc(3); ASSERT(mon->type == MON_TARGET); - rmon = erts_remove_monitor(&(rp->monitors),mon->ref); + rmon = erts_remove_monitor(&ERTS_P_MONITORS(rp), mon->ref); /* ASSERT(rmon != NULL); can happen during process exit */ if (rmon != NULL) { ASSERT(is_atom(rmon->name) || is_nil(rmon->name)); @@ -311,7 +317,7 @@ static void doit_link_net_exits_sub(ErtsLink *sublnk, void *vlnecp) goto done; } - rlnk = erts_remove_link(&(rp->nlinks), sublnk->pid); + rlnk = erts_remove_link(&ERTS_P_LINKS(rp), sublnk->pid); xres = erts_send_exit_signal(NULL, sublnk->pid, rp, @@ -347,7 +353,7 @@ static void doit_link_net_exits_sub(ErtsLink *sublnk, void *vlnecp) static void doit_link_net_exits(ErtsLink *lnk, void *vnecp) { LinkNetExitsContext lnec = {(NetExitsContext *) vnecp, lnk}; - ASSERT(lnk->type == LINK_PID) + ASSERT(lnk->type == LINK_PID); erts_sweep_links(ERTS_LINK_ROOT(lnk), &doit_link_net_exits_sub, (void *) &lnec); #ifdef DEBUG ERTS_LINK_ROOT(lnk) = NULL; @@ -363,14 +369,14 @@ static void doit_node_link_net_exits(ErtsLink *lnk, void *vnecp) Process *rp; ErtsLink *rlnk; Uint i,n; - ASSERT(lnk->type == LINK_NODE) + ASSERT(lnk->type == LINK_NODE); if (is_internal_pid(lnk->pid)) { ErtsProcLocks rp_locks = ERTS_PROC_LOCK_LINK; rp = erts_pid2proc(NULL, 0, lnk->pid, rp_locks); if (!rp) { goto done; } - rlnk = erts_remove_link(&(rp->nlinks), name); + rlnk = erts_remove_link(&ERTS_P_LINKS(rp), name); if (rlnk != NULL) { ASSERT(is_atom(rlnk->pid) && (rlnk->type == LINK_NODE)); erts_destroy_link(rlnk); @@ -394,6 +400,47 @@ static void doit_node_link_net_exits(ErtsLink *lnk, void *vnecp) erts_destroy_link(lnk); } +static void +set_node_not_alive(void *unused) +{ + ErlHeapFragment *bp; + Eterm nodename = erts_this_dist_entry->sysname; + + ASSERT(erts_smp_atomic_read_nob(&no_nodes) == 0); + + erts_smp_thr_progress_block(); + erts_set_this_node(am_Noname, 0); + erts_is_alive = 0; + send_nodes_mon_msgs(NULL, am_nodedown, nodename, am_visible, nodedown.reason); + nodedown.reason = NIL; + bp = nodedown.bp; + nodedown.bp = NULL; + erts_smp_thr_progress_unblock(); + if (bp) + free_message_buffer(bp); +} + +static ERTS_INLINE void +dec_no_nodes(void) +{ + erts_aint_t no = erts_smp_atomic_dec_read_mb(&no_nodes); + ASSERT(no >= 0); + ASSERT(erts_get_scheduler_id()); /* Need to be a scheduler */ + if (no == 0) + erts_schedule_misc_aux_work(erts_get_scheduler_id(), + set_node_not_alive, + NULL); +} + +static ERTS_INLINE void +inc_no_nodes(void) +{ +#ifdef DEBUG + erts_aint_t no = erts_smp_atomic_read_nob(&no_nodes); + ASSERT(erts_is_alive ? no > 0 : no == 0); +#endif + erts_smp_atomic_inc_mb(&no_nodes); +} /* * proc is currently running or exiting process. @@ -403,47 +450,76 @@ int erts_do_net_exits(DistEntry *dep, Eterm reason) Eterm nodename; if (dep == erts_this_dist_entry) { /* Net kernel has died (clean up!!) */ + DistEntry *tdep; + int no_dist_port = 0; Eterm nd_reason = (reason == am_no_network ? am_no_network : am_net_kernel_terminated); - erts_smp_rwmtx_rwlock(&erts_dist_table_rwmtx); + erts_smp_rwmtx_rlock(&erts_dist_table_rwmtx); + + for (tdep = erts_hidden_dist_entries; tdep; tdep = tdep->next) + no_dist_port++; + for (tdep = erts_visible_dist_entries; tdep; tdep = tdep->next) + no_dist_port++; /* KILL all port controllers */ - while(erts_visible_dist_entries || erts_hidden_dist_entries) { - DistEntry *tdep; - Eterm prt_id; - Port *prt; - if(erts_hidden_dist_entries) - tdep = erts_hidden_dist_entries; + if (no_dist_port == 0) + erts_smp_rwmtx_runlock(&erts_dist_table_rwmtx); + else { + Eterm def_buf[128]; + int i = 0; + Eterm *dist_port; + + if (no_dist_port <= sizeof(def_buf)/sizeof(def_buf[0])) + dist_port = &def_buf[0]; else - tdep = erts_visible_dist_entries; - prt_id = tdep->cid; - ASSERT(is_internal_port(prt_id)); - erts_smp_rwmtx_rwunlock(&erts_dist_table_rwmtx); - - prt = erts_id2port(prt_id, NULL, 0); - if (prt) { - ASSERT(prt->status & ERTS_PORT_SFLG_DISTRIBUTION); - ASSERT(prt->dist_entry); - /* will call do_net_exists !!! */ - erts_do_exit_port(prt, prt_id, nd_reason); - erts_port_release(prt); + dist_port = erts_alloc(ERTS_ALC_T_TMP, + sizeof(Eterm)*no_dist_port); + for (tdep = erts_hidden_dist_entries; tdep; tdep = tdep->next) { + ASSERT(is_internal_port(tdep->cid)); + dist_port[i++] = tdep->cid; + } + for (tdep = erts_visible_dist_entries; tdep; tdep = tdep->next) { + ASSERT(is_internal_port(tdep->cid)); + dist_port[i++] = tdep->cid; } + erts_smp_rwmtx_runlock(&erts_dist_table_rwmtx); - erts_smp_rwmtx_rwlock(&erts_dist_table_rwmtx); - } + for (i = 0; i < no_dist_port; i++) { + Port *prt = erts_port_lookup(dist_port[i], + ERTS_PORT_SFLGS_INVALID_LOOKUP); + if (!prt) + continue; + ASSERT(erts_atomic32_read_nob(&prt->state) + & ERTS_PORT_SFLG_DISTRIBUTION); - erts_smp_rwmtx_rwunlock(&erts_dist_table_rwmtx); + erts_port_exit(NULL, ERTS_PORT_SIG_FLG_FORCE_SCHED, + prt, dist_port[i], nd_reason, NULL); + } - nodename = erts_this_dist_entry->sysname; - erts_smp_thr_progress_block(); - erts_set_this_node(am_Noname, 0); - erts_is_alive = 0; - send_nodes_mon_msgs(NULL, am_nodedown, nodename, am_visible, nd_reason); - erts_smp_thr_progress_unblock(); + if (dist_port != &def_buf[0]) + erts_free(ERTS_ALC_T_TMP, dist_port); + } + /* + * When last dist port exits, node will be taken + * from alive to not alive. + */ + ASSERT(is_nil(nodedown.reason) && !nodedown.bp); + if (is_immed(nd_reason)) + nodedown.reason = nd_reason; + else { + Eterm *hp; + Uint sz = size_object(nd_reason); + nodedown.bp = new_message_buffer(sz); + hp = nodedown.bp->mem; + nodedown.reason = copy_struct(nd_reason, + sz, + &hp, + &nodedown.bp->off_heap); + } } - else { /* recursive call via erts_do_exit_port() will end up here */ + else { /* Call from distribution port */ NetExitsContext nec = {dep}; ErtsLink *nlinks; ErtsLink *node_links; @@ -454,10 +530,10 @@ int erts_do_net_exits(DistEntry *dep, Eterm reason) erts_smp_de_rwlock(dep); ERTS_SMP_LC_ASSERT(is_internal_port(dep->cid) - && erts_lc_is_port_locked(&erts_port[internal_port_index(dep->cid)])); + && erts_lc_is_port_locked(erts_port_lookup_raw(dep->cid))); if (erts_port_task_is_scheduled(&dep->dist_cmd)) - erts_port_task_abort(dep->cid, &dep->dist_cmd); + erts_port_task_abort(&dep->dist_cmd); if (dep->status & ERTS_DE_SFLG_EXITING) { #ifdef DEBUG @@ -503,6 +579,9 @@ int erts_do_net_exits(DistEntry *dep, Eterm reason) clear_dist_entry(dep); } + + dec_no_nodes(); + return 1; } @@ -516,6 +595,10 @@ void init_dist(void) { init_nodes_monitors(); + nodedown.reason = NIL; + nodedown.bp = NULL; + + erts_smp_atomic_init_nob(&no_nodes, 0); erts_smp_atomic_init_nob(&no_caches, 0); /* Lookup/Install all references to trap functions */ @@ -768,9 +851,12 @@ erts_dsig_send_msg(ErtsDSigData *dsdp, Eterm remote, Eterm message) #ifdef USE_VM_PROBES *node_name = *sender_name = *receiver_name = '\0'; if (DTRACE_ENABLED(message_send) || DTRACE_ENABLED(message_send_remote)) { - erts_snprintf(node_name, sizeof(node_name), "%T", dsdp->dep->sysname); - erts_snprintf(sender_name, sizeof(sender_name), "%T", sender->id); - erts_snprintf(receiver_name, sizeof(receiver_name), "%T", remote); + erts_snprintf(node_name, sizeof(DTRACE_CHARBUF_NAME(node_name)), + "%T", dsdp->dep->sysname); + erts_snprintf(sender_name, sizeof(DTRACE_CHARBUF_NAME(sender_name)), + "%T", sender->common.id); + erts_snprintf(receiver_name, sizeof(DTRACE_CHARBUF_NAME(receiver_name)), + "%T", remote); msize = size_object(message); if (token != NIL && token != am_have_dt_utag) { tok_label = signed_val(SEQ_TRACE_T_LABEL(token)); @@ -825,9 +911,11 @@ erts_dsig_send_reg_msg(ErtsDSigData *dsdp, Eterm remote_name, Eterm message) #ifdef USE_VM_PROBES *node_name = *sender_name = *receiver_name = '\0'; if (DTRACE_ENABLED(message_send) || DTRACE_ENABLED(message_send_remote)) { - erts_snprintf(node_name, sizeof(node_name), "%T", dsdp->dep->sysname); - erts_snprintf(sender_name, sizeof(sender_name), "%T", sender->id); - erts_snprintf(receiver_name, sizeof(receiver_name), + erts_snprintf(node_name, sizeof(DTRACE_CHARBUF_NAME(node_name)), + "%T", dsdp->dep->sysname); + erts_snprintf(sender_name, sizeof(DTRACE_CHARBUF_NAME(sender_name)), + "%T", sender->common.id); + erts_snprintf(receiver_name, sizeof(DTRACE_CHARBUF_NAME(receiver_name)), "{%T,%s}", remote_name, node_name); msize = size_object(message); if (token != NIL && token != am_have_dt_utag) { @@ -840,10 +928,10 @@ erts_dsig_send_reg_msg(ErtsDSigData *dsdp, Eterm remote_name, Eterm message) if (token != NIL) ctl = TUPLE5(&ctl_heap[0], make_small(DOP_REG_SEND_TT), - sender->id, am_Cookie, remote_name, token); + sender->common.id, am_Cookie, remote_name, token); else ctl = TUPLE4(&ctl_heap[0], make_small(DOP_REG_SEND), - sender->id, am_Cookie, remote_name); + sender->common.id, am_Cookie, remote_name); DTRACE6(message_send, sender_name, receiver_name, msize, tok_label, tok_lastcnt, tok_serial); DTRACE7(message_send_remote, sender_name, node_name, receiver_name, @@ -888,11 +976,14 @@ erts_dsig_send_exit_tt(ErtsDSigData *dsdp, Eterm local, Eterm remote, #ifdef USE_VM_PROBES *node_name = *sender_name = *remote_name = '\0'; if (DTRACE_ENABLED(process_exit_signal_remote)) { - erts_snprintf(node_name, sizeof(node_name), "%T", dsdp->dep->sysname); - erts_snprintf(sender_name, sizeof(sender_name), "%T", sender->id); - erts_snprintf(remote_name, sizeof(remote_name), + erts_snprintf(node_name, sizeof(DTRACE_CHARBUF_NAME(node_name)), + "%T", dsdp->dep->sysname); + erts_snprintf(sender_name, sizeof(DTRACE_CHARBUF_NAME(sender_name)), + "%T", sender->common.id); + erts_snprintf(remote_name, sizeof(DTRACE_CHARBUF_NAME(remote_name)), "{%T,%s}", remote, node_name); - erts_snprintf(reason_str, sizeof(reason), "%T", reason); + erts_snprintf(reason_str, sizeof(DTRACE_CHARBUF_NAME(reason_str)), + "%T", reason); if (token != NIL && token != am_have_dt_utag) { tok_label = signed_val(SEQ_TRACE_T_LABEL(token)); tok_lastcnt = signed_val(SEQ_TRACE_T_LASTCNT(token)); @@ -1141,7 +1232,7 @@ int erts_net_message(Port *prt, } erts_smp_de_links_lock(dep); - res = erts_add_link(&(rp->nlinks), LINK_PID, from); + res = erts_add_link(&ERTS_P_LINKS(rp), LINK_PID, from); if (res < 0) { /* It was already there! Lets skip the rest... */ @@ -1149,7 +1240,7 @@ int erts_net_message(Port *prt, erts_smp_proc_unlock(rp, ERTS_PROC_LOCK_LINK); break; } - lnk = erts_add_or_lookup_link(&(dep->nlinks), LINK_PID, rp->id); + lnk = erts_add_or_lookup_link(&(dep->nlinks), LINK_PID, rp->common.id); erts_add_link(&(ERTS_LINK_ROOT(lnk)), LINK_PID, from); erts_smp_de_links_unlock(dep); @@ -1176,7 +1267,7 @@ int erts_net_message(Port *prt, if (!rp) break; - lnk = erts_remove_link(&(rp->nlinks), from); + lnk = erts_remove_link(&ERTS_P_LINKS(rp), from); if (IS_TRACED_FL(rp, F_TRACE_PROCS) && lnk != NULL) { trace_proc(NULL, rp, am_getting_unlinked, from); @@ -1233,10 +1324,10 @@ int erts_net_message(Port *prt, } else { if (is_atom(watched)) - watched = rp->id; + watched = rp->common.id; erts_smp_de_links_lock(dep); erts_add_monitor(&(dep->monitors), MON_ORIGIN, ref, watched, name); - erts_add_monitor(&(rp->monitors), MON_TARGET, ref, watcher, name); + erts_add_monitor(&ERTS_P_MONITORS(rp), MON_TARGET, ref, watcher, name); erts_smp_de_links_unlock(dep); erts_smp_proc_unlock(rp, ERTS_PROC_LOCK_LINK); } @@ -1275,7 +1366,7 @@ int erts_net_message(Port *prt, if (!rp) { break; } - mon = erts_remove_monitor(&(rp->monitors),ref); + mon = erts_remove_monitor(&ERTS_P_MONITORS(rp), ref); erts_smp_proc_unlock(rp, ERTS_PROC_LOCK_LINK); ASSERT(mon != NULL); if (mon == NULL) { @@ -1312,7 +1403,7 @@ int erts_net_message(Port *prt, if (is_not_pid(from) || is_not_atom(to)){ goto invalid_message; } - rp = erts_whereis_process(NULL, 0, to, 0, ERTS_P2P_FLG_SMP_INC_REFC); + rp = erts_whereis_process(NULL, 0, to, 0, 0); if (rp) { Uint xsize = (type == DOP_REG_SEND ? 0 @@ -1338,7 +1429,6 @@ int erts_net_message(Port *prt, erts_queue_dist_message(rp, &locks, ede_copy, token); if (locks) erts_smp_proc_unlock(rp, locks); - erts_smp_proc_dec_refc(rp); } break; @@ -1364,7 +1454,7 @@ int erts_net_message(Port *prt, if (is_not_pid(to)) { goto invalid_message; } - rp = erts_pid2proc_opt(NULL, 0, to, 0, ERTS_P2P_FLG_SMP_INC_REFC); + rp = erts_proc_lookup(to); if (rp) { Uint xsize = type == DOP_SEND ? 0 : ERTS_HEAP_FRAG_SIZE(token_size); ErtsProcLocks locks = 0; @@ -1388,7 +1478,6 @@ int erts_net_message(Port *prt, erts_queue_dist_message(rp, &locks, ede_copy, token); if (locks) erts_smp_proc_unlock(rp, locks); - erts_smp_proc_dec_refc(rp); } break; @@ -1428,13 +1517,13 @@ int erts_net_message(Port *prt, break; } rp = erts_pid2proc(NULL, 0, mon->pid, rp_locks); + + erts_destroy_monitor(mon); if (rp == NULL) { break; } - erts_destroy_monitor(mon); - - mon = erts_remove_monitor(&(rp->monitors),ref); + mon = erts_remove_monitor(&ERTS_P_MONITORS(rp), ref); if (mon == NULL) { erts_smp_proc_unlock(rp, rp_locks); @@ -1485,7 +1574,7 @@ int erts_net_message(Port *prt, if (!rp) lnk = NULL; else { - lnk = erts_remove_link(&(rp->nlinks), from); + lnk = erts_remove_link(&ERTS_P_LINKS(rp), from); /* If lnk == NULL, we have unlinked on this side, i.e. * ignore exit. @@ -1544,8 +1633,7 @@ int erts_net_message(Port *prt, if (is_not_pid(from) || is_not_internal_pid(to)) { goto invalid_message; } - rp = erts_pid2proc_opt(NULL, 0, to, rp_locks, - ERTS_P2P_FLG_SMP_INC_REFC); + rp = erts_pid2proc(NULL, 0, to, rp_locks); if (rp) { (void) erts_send_exit_signal(NULL, from, @@ -1556,7 +1644,6 @@ int erts_net_message(Port *prt, NULL, 0); erts_smp_proc_unlock(rp, rp_locks); - erts_smp_proc_dec_refc(rp); } break; } @@ -1601,7 +1688,7 @@ int erts_net_message(Port *prt, erts_free(ERTS_ALC_T_DCTRL_BUF, (void *) ctl); } UnUseTmpHeapNoproc(DIST_CTL_DEFAULT_SIZE); - erts_do_exit_port(prt, dep->cid, am_killed); + erts_deliver_port_exit(prt, dep->cid, am_killed, 0); ERTS_SMP_CHK_NO_PROC_LOCKS; return -1; } @@ -1650,7 +1737,7 @@ dsig_send(ErtsDSigData *dsdp, Eterm ctl, Eterm msg, int force_busy) data_size += erts_encode_dist_ext_size(ctl, flags, acmp); if (is_value(msg)) data_size += erts_encode_dist_ext_size(msg, flags, acmp); - erts_finalize_atom_cache_map(acmp); + erts_finalize_atom_cache_map(acmp, flags); dhdr_ext_size = erts_encode_ext_dist_header_size(acmp); data_size += dhdr_ext_size; @@ -1697,7 +1784,6 @@ dsig_send(ErtsDSigData *dsdp, Eterm ctl, Eterm msg, int force_busy) erts_smp_mtx_unlock(&dep->qlock); plp = erts_proclist_create(c_p); - plp->next = NULL; erts_suspend(c_p, ERTS_PROC_LOCK_MAIN, NULL); suspended = 1; erts_smp_mtx_lock(&dep->qlock); @@ -1719,8 +1805,9 @@ dsig_send(ErtsDSigData *dsdp, Eterm ctl, Eterm msg, int force_busy) DTRACE_CHARBUF(port_str, 64); DTRACE_CHARBUF(remote_str, 64); - erts_snprintf(port_str, sizeof(port_str), "%T", cid); - erts_snprintf(remote_str, sizeof(remote_str), + erts_snprintf(port_str, sizeof(DTRACE_CHARBUF_NAME(port_str)), + "%T", cid); + erts_snprintf(remote_str, sizeof(DTRACE_CHARBUF_NAME(remote_str)), "%T", dep->sysname); DTRACE3(dist_port_not_busy, erts_this_node_sysname, port_str, remote_str); @@ -1730,11 +1817,7 @@ dsig_send(ErtsDSigData *dsdp, Eterm ctl, Eterm msg, int force_busy) else { /* Enqueue suspended process on dist entry */ ASSERT(plp); - if (dep->suspended.last) - dep->suspended.last->next = plp; - else - dep->suspended.first = plp; - dep->suspended.last = plp; + erts_proclist_store_last(&dep->suspended, plp); } } @@ -1781,9 +1864,11 @@ dsig_send(ErtsDSigData *dsdp, Eterm ctl, Eterm msg, int force_busy) DTRACE_CHARBUF(remote_str, 64); DTRACE_CHARBUF(pid_str, 16); - erts_snprintf(port_str, sizeof(port_str), "%T", cid); - erts_snprintf(remote_str, sizeof(remote_str), "%T", dep->sysname); - erts_snprintf(pid_str, sizeof(pid_str), "%T", c_p->id); + erts_snprintf(port_str, sizeof(DTRACE_CHARBUF_NAME(port_str)), "%T", cid); + erts_snprintf(remote_str, sizeof(DTRACE_CHARBUF_NAME(remote_str)), + "%T", dep->sysname); + erts_snprintf(pid_str, sizeof(DTRACE_CHARBUF_NAME(pid_str)), + "%T", c_p->common.id); DTRACE4(dist_port_busy, erts_this_node_sysname, port_str, remote_str, pid_str); } @@ -1816,8 +1901,9 @@ dist_port_command(Port *prt, ErtsDistOutputBuf *obuf) DTRACE_CHARBUF(port_str, 64); DTRACE_CHARBUF(remote_str, 64); - erts_snprintf(port_str, sizeof(port_str), "%T", prt->id); - erts_snprintf(remote_str, sizeof(remote_str), + erts_snprintf(port_str, sizeof(DTRACE_CHARBUF_NAME(port_str)), + "%T", prt->common.id); + erts_snprintf(remote_str, sizeof(DTRACE_CHARBUF_NAME(remote_str)), "%T", prt->dist_entry->sysname); DTRACE4(dist_output, erts_this_node_sysname, port_str, remote_str, size); @@ -1870,8 +1956,9 @@ dist_port_commandv(Port *prt, ErtsDistOutputBuf *obuf) DTRACE_CHARBUF(port_str, 64); DTRACE_CHARBUF(remote_str, 64); - erts_snprintf(port_str, sizeof(port_str), "%T", prt->id); - erts_snprintf(remote_str, sizeof(remote_str), + erts_snprintf(port_str, sizeof(DTRACE_CHARBUF_NAME(port_str)), + "%T", prt->common.id); + erts_snprintf(remote_str, sizeof(DTRACE_CHARBUF_NAME(remote_str)), "%T", prt->dist_entry->sysname); DTRACE4(dist_outputv, erts_this_node_sysname, port_str, remote_str, size); @@ -1907,13 +1994,13 @@ int erts_dist_command(Port *prt, int reds_limit) { Sint reds = ERTS_PORT_REDS_DIST_CMD_START; - int prt_busy; Uint32 status; Uint32 flags; Sint obufsize = 0; ErtsDistOutputQueue oq, foq; DistEntry *dep = prt->dist_entry; Uint (*send)(Port *prt, ErtsDistOutputBuf *obuf); + erts_aint32_t sched_flags; ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt)); @@ -1929,7 +2016,7 @@ erts_dist_command(Port *prt, int reds_limit) erts_smp_de_runlock(dep); if (status & ERTS_DE_SFLG_EXITING) { - erts_do_exit_port(prt, prt->id, am_killed); + erts_deliver_port_exit(prt, prt->common.id, am_killed, 0); erts_deref_dist_entry(dep); return reds + ERTS_PORT_REDS_DIST_CMD_EXIT; } @@ -1956,12 +2043,12 @@ erts_dist_command(Port *prt, int reds_limit) dep->finalized_out_queue.first = NULL; dep->finalized_out_queue.last = NULL; + sched_flags = erts_smp_atomic32_read_nob(&prt->sched.flags); + if (reds > reds_limit) goto preempted; - prt_busy = (int) (prt->status & ERTS_PORT_SFLG_PORT_BUSY); - - if (!prt_busy && foq.first) { + if (!(sched_flags & ERTS_PTS_FLG_BUSY_PORT) && foq.first) { int preempt = 0; do { Uint size; @@ -1973,15 +2060,15 @@ erts_dist_command(Port *prt, int reds_limit) bw(foq.first->extp, size); #endif reds += ERTS_PORT_REDS_DIST_CMD_DATA(size); + erts_smp_atomic_add_nob(&erts_bytes_out, size); fob = foq.first; obufsize += size_obuf(fob); foq.first = foq.first->next; free_dist_obuf(fob); - preempt = reds > reds_limit || (prt->status & ERTS_PORT_SFLGS_DEAD); - if (prt->status & ERTS_PORT_SFLG_PORT_BUSY) { - prt_busy = 1; + sched_flags = erts_smp_atomic32_read_nob(&prt->sched.flags); + preempt = reds > reds_limit || (sched_flags & ERTS_PTS_FLG_EXIT); + if (sched_flags & ERTS_PTS_FLG_BUSY_PORT) break; - } } while (foq.first && !preempt); if (!foq.first) foq.last = NULL; @@ -1989,7 +2076,7 @@ erts_dist_command(Port *prt, int reds_limit) goto preempted; } - if (prt_busy) { + if (sched_flags & ERTS_PTS_FLG_BUSY_PORT) { if (oq.first) { ErtsDistOutputBuf *ob; int preempt; @@ -1999,7 +2086,8 @@ erts_dist_command(Port *prt, int reds_limit) ASSERT(ob); do { ob->extp = erts_encode_ext_dist_header_finalize(ob->extp, - dep->cache); + dep->cache, + flags); if (!(flags & DFLAG_DIST_HDR_ATOM_CACHE)) *--ob->extp = PASS_THROUGH; /* Old node; 'pass through' needed */ @@ -2043,7 +2131,8 @@ erts_dist_command(Port *prt, int reds_limit) Uint size; oq.first->extp = erts_encode_ext_dist_header_finalize(oq.first->extp, - dep->cache); + dep->cache, + flags); reds += ERTS_PORT_REDS_DIST_CMD_FINALIZE; if (!(flags & DFLAG_DIST_HDR_ATOM_CACHE)) *--oq.first->extp = PASS_THROUGH; /* Old node; 'pass through' @@ -2056,16 +2145,15 @@ erts_dist_command(Port *prt, int reds_limit) bw(oq.first->extp, size); #endif reds += ERTS_PORT_REDS_DIST_CMD_DATA(size); + erts_smp_atomic_add_nob(&erts_bytes_out, size); fob = oq.first; obufsize += size_obuf(fob); oq.first = oq.first->next; free_dist_obuf(fob); - preempt = reds > reds_limit || (prt->status & ERTS_PORT_SFLGS_DEAD); - if (prt->status & ERTS_PORT_SFLG_PORT_BUSY) { - prt_busy = 1; - if (oq.first && !preempt) - goto finalize_only; - } + sched_flags = erts_smp_atomic32_read_nob(&prt->sched.flags); + preempt = reds > reds_limit || (sched_flags & ERTS_PTS_FLG_EXIT); + if ((sched_flags & ERTS_PTS_FLG_BUSY_PORT) && oq.first && !preempt) + goto finalize_only; } ASSERT(!oq.first || preempt); @@ -2093,7 +2181,7 @@ erts_dist_command(Port *prt, int reds_limit) ASSERT(dep->qsize >= obufsize); dep->qsize -= obufsize; obufsize = 0; - if (!prt_busy + if (!(sched_flags & ERTS_PTS_FLG_BUSY_PORT) && (dep->qflgs & ERTS_DE_QFLG_BUSY) && dep->qsize < erts_dist_buf_busy_limit) { ErtsProcList *suspendees; @@ -2139,11 +2227,15 @@ erts_dist_command(Port *prt, int reds_limit) return reds; preempted: + /* + * Here we assume that state has been read + * since last call to driver. + */ ASSERT(oq.first || !oq.last); ASSERT(!oq.first || oq.last); - if (prt->status & ERTS_PORT_SFLGS_DEAD) { + if (sched_flags & ERTS_PTS_FLG_EXIT) { /* * Port died during port command; clean up 'oq' * and 'foq'. Things buffered in dist entry after @@ -2201,8 +2293,9 @@ erts_dist_port_not_busy(Port *prt) DTRACE_CHARBUF(port_str, 64); DTRACE_CHARBUF(remote_str, 64); - erts_snprintf(port_str, sizeof(port_str), "%T", prt->id); - erts_snprintf(remote_str, sizeof(remote_str), + erts_snprintf(port_str, sizeof(DTRACE_CHARBUF_NAME(port_str)), + "%T", prt->common.id); + erts_snprintf(remote_str, sizeof(DTRACE_CHARBUF_NAME(remote_str)), "%T", prt->dist_entry->sysname); DTRACE3(dist_port_not_busy, erts_this_node_sysname, port_str, remote_str); @@ -2242,8 +2335,8 @@ static void doit_print_monitor_info(ErtsMonitor *mon, void *vptdp) void *arg = ((struct print_to_data *) vptdp)->arg; Process *rp; ErtsMonitor *rmon; - rp = erts_pid2proc_unlocked(mon->pid); - if (!rp || (rmon = erts_lookup_monitor(rp->monitors, mon->ref)) == NULL) { + rp = erts_proc_lookup(mon->pid); + if (!rp || (rmon = erts_lookup_monitor(ERTS_P_MONITORS(rp), mon->ref)) == NULL) { erts_print(to, arg, "Warning, stray monitor for: %T\n", mon->pid); } else if (mon->type == MON_ORIGIN) { /* Local pid is being monitored */ @@ -2281,7 +2374,7 @@ static void doit_print_link_info2(ErtsLink *lnk, void *vpplc) static void doit_print_link_info(ErtsLink *lnk, void *vptdp) { - if (is_internal_pid(lnk->pid) && erts_pid2proc_unlocked(lnk->pid)) { + if (is_internal_pid(lnk->pid) && erts_proc_lookup(lnk->pid)) { PrintLinkContext plc = {(struct print_to_data *) vptdp, lnk->pid}; erts_doforall_links(ERTS_LINK_ROOT(lnk), &doit_print_link_info2, &plc); } @@ -2303,7 +2396,7 @@ static void doit_print_nodelink_info(ErtsLink *lnk, void *vpcontext) { PrintNodeLinkContext *pcontext = vpcontext; - if (is_internal_pid(lnk->pid) && erts_pid2proc_unlocked(lnk->pid)) + if (is_internal_pid(lnk->pid) && erts_proc_lookup(lnk->pid)) erts_print(pcontext->ptd.to, pcontext->ptd.arg, "Remote monitoring: %T %T\n", lnk->pid, pcontext->sysname); } @@ -2451,15 +2544,15 @@ BIF_RETTYPE setnode_2(BIF_ALIST_2) goto error; /* Check that all trap functions are defined !! */ - if (dsend2_trap->address == NULL || - dsend3_trap->address == NULL || + if (dsend2_trap->addressv[0] == NULL || + dsend3_trap->addressv[0] == NULL || /* dsend_nosuspend_trap->address == NULL ||*/ - dlink_trap->address == NULL || - dunlink_trap->address == NULL || - dmonitor_node_trap->address == NULL || - dgroup_leader_trap->address == NULL || - dmonitor_p_trap->address == NULL || - dexit_trap->address == NULL) { + dlink_trap->addressv[0] == NULL || + dunlink_trap->addressv[0] == NULL || + dmonitor_node_trap->addressv[0] == NULL || + dgroup_leader_trap->addressv[0] == NULL || + dmonitor_p_trap->addressv[0] == NULL || + dexit_trap->addressv[0] == NULL) { goto error; } @@ -2471,9 +2564,9 @@ BIF_RETTYPE setnode_2(BIF_ALIST_2) /* By setting dist_entry==erts_this_dist_entry and DISTRIBUTION on net_kernel do_net_exist will be called when net_kernel is terminated !! */ - (void *) ERTS_PROC_SET_DIST_ENTRY(net_kernel, - ERTS_PROC_LOCK_MAIN, - erts_this_dist_entry); + (void) ERTS_PROC_SET_DIST_ENTRY(net_kernel, + ERTS_PROC_LOCK_MAIN, + erts_this_dist_entry); erts_refc_inc(&erts_this_dist_entry->refc, 2); net_kernel->flags |= F_DISTRIBUTION; @@ -2481,13 +2574,14 @@ BIF_RETTYPE setnode_2(BIF_ALIST_2) erts_smp_proc_unlock(net_kernel, ERTS_PROC_LOCK_MAIN); #ifdef DEBUG - erts_smp_rwmtx_rwlock(&erts_dist_table_rwmtx); + erts_smp_rwmtx_rlock(&erts_dist_table_rwmtx); ASSERT(!erts_visible_dist_entries && !erts_hidden_dist_entries); - erts_smp_rwmtx_rwunlock(&erts_dist_table_rwmtx); + erts_smp_rwmtx_runlock(&erts_dist_table_rwmtx); #endif erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCK_MAIN); erts_smp_thr_progress_block(); + inc_no_nodes(); erts_set_this_node(BIF_ARG_1, (Uint32) creation); erts_is_alive = 1; send_nodes_mon_msgs(NULL, am_nodeup, BIF_ARG_1, am_visible, NIL); @@ -2556,9 +2650,9 @@ BIF_RETTYPE setnode_3(BIF_ALIST_3) /* DFLAG_EXTENDED_REFERENCES is compulsory from R9 and forward */ if (!(DFLAG_EXTENDED_REFERENCES & flags)) { erts_dsprintf_buf_t *dsbufp = erts_create_logger_dsbuf(); - erts_dsprintf(dsbufp, "%T", BIF_P->id); - if (BIF_P->reg) - erts_dsprintf(dsbufp, " (%T)", BIF_P->reg->name); + erts_dsprintf(dsbufp, "%T", BIF_P->common.id); + if (BIF_P->common.u.alive.reg) + erts_dsprintf(dsbufp, " (%T)", BIF_P->common.u.alive.reg->name); erts_dsprintf(dsbufp, " attempted to enable connection to node %T " "which is not able to handle extended references.\n", @@ -2578,10 +2672,14 @@ BIF_RETTYPE setnode_3(BIF_ALIST_3) else if (!dep) goto system_limit; /* Should never happen!!! */ - pp = erts_id2port(BIF_ARG_2, BIF_P, ERTS_PROC_LOCK_MAIN); + pp = erts_id2port_sflgs(BIF_ARG_2, + BIF_P, + ERTS_PROC_LOCK_MAIN, + ERTS_PORT_SFLGS_INVALID_LOOKUP); erts_smp_de_rwlock(dep); - if (!pp || (pp->status & ERTS_PORT_SFLG_EXITING)) + if (!pp || (erts_atomic32_read_nob(&pp->state) + & ERTS_PORT_SFLG_EXITING)) goto badarg; if ((pp->drv_ptr->flags & ERL_DRV_FLAG_SOFT_BUSY) == 0) @@ -2596,11 +2694,7 @@ BIF_RETTYPE setnode_3(BIF_ALIST_3) plp->next = NULL; erts_suspend(BIF_P, ERTS_PROC_LOCK_MAIN, NULL); erts_smp_mtx_lock(&dep->qlock); - if (dep->suspended.last) - dep->suspended.last->next = plp; - else - dep->suspended.first = plp; - dep->suspended.last = plp; + erts_proclist_store_last(&dep->suspended, plp); erts_smp_mtx_unlock(&dep->qlock); goto yield; } @@ -2610,7 +2704,16 @@ BIF_RETTYPE setnode_3(BIF_ALIST_3) if (pp->dist_entry || is_not_nil(dep->cid)) goto badarg; - erts_port_status_bor_set(pp, ERTS_PORT_SFLG_DISTRIBUTION); + erts_atomic32_read_bor_nob(&pp->state, ERTS_PORT_SFLG_DISTRIBUTION); + + /* + * Dist-ports do not use the "busy port message queue" functionality, but + * instead use "busy dist entry" functionality. + */ + { + ErlDrvSizeT disable = ERL_DRV_BUSY_MSGQ_DISABLED; + erl_drv_busy_msgq_limits(ERTS_Port2ErlDrvPort(pp), &disable, NULL); + } pp->dist_entry = dep; @@ -2642,6 +2745,8 @@ BIF_RETTYPE setnode_3(BIF_ALIST_3) erts_smp_de_rwunlock(dep); dep = NULL; /* inc of refc transferred to port (dist_entry field) */ + inc_no_nodes(); + send_nodes_mon_msgs(BIF_P, am_nodeup, BIF_ARG_1, @@ -2655,7 +2760,7 @@ BIF_RETTYPE setnode_3(BIF_ALIST_3) } if (pp) - erts_smp_port_unlock(pp); + erts_port_release(pp); return ret; @@ -2699,16 +2804,15 @@ BIF_RETTYPE dist_exit_3(BIF_ALIST_3) if (is_internal_pid(local)) { Process *lp; ErtsProcLocks lp_locks; - if (BIF_P->id == local) { + if (BIF_P->common.id == local) { lp_locks = ERTS_PROC_LOCKS_ALL; lp = BIF_P; erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCKS_ALL_MINOR); } else { lp_locks = ERTS_PROC_LOCKS_XSIG_SEND; - lp = erts_pid2proc_opt(BIF_P, ERTS_PROC_LOCK_MAIN, - local, lp_locks, - ERTS_P2P_FLG_SMP_INC_REFC); + lp = erts_pid2proc(BIF_P, ERTS_PROC_LOCK_MAIN, + local, lp_locks); if (!lp) { BIF_RET(am_true); /* ignore */ } @@ -2727,14 +2831,18 @@ BIF_RETTYPE dist_exit_3(BIF_ALIST_3) lp_locks &= ~ERTS_PROC_LOCK_MAIN; #endif erts_smp_proc_unlock(lp, lp_locks); - if (lp != BIF_P) - erts_smp_proc_dec_refc(lp); - else { + if (lp == BIF_P) { + erts_aint32_t state = erts_smp_atomic32_read_acqb(&BIF_P->state); /* * We may have exited current process and may have to take action. */ - ERTS_BIF_CHK_EXITED(BIF_P); - ERTS_SMP_BIF_CHK_PENDING_EXIT(BIF_P, ERTS_PROC_LOCK_MAIN); + if (state & (ERTS_PSFLG_EXITING|ERTS_PSFLG_PENDING_EXIT)) { +#ifdef ERTS_SMP + if (state & ERTS_PSFLG_PENDING_EXIT) + erts_handle_pending_exit(BIF_P, ERTS_PROC_LOCK_MAIN); +#endif + ERTS_BIF_EXITED(BIF_P); + } } } else if (is_external_pid(local) @@ -2818,7 +2926,7 @@ BIF_RETTYPE nodes_1(BIF_ALIST_1) length = 0; - erts_smp_rwmtx_rwlock(&erts_dist_table_rwmtx); + erts_smp_rwmtx_rlock(&erts_dist_table_rwmtx); ASSERT(erts_no_of_not_connected_dist_entries >= 0); ASSERT(erts_no_of_hidden_dist_entries >= 0); @@ -2835,7 +2943,7 @@ BIF_RETTYPE nodes_1(BIF_ALIST_1) result = NIL; if (length == 0) { - erts_smp_rwmtx_rwunlock(&erts_dist_table_rwmtx); + erts_smp_rwmtx_runlock(&erts_dist_table_rwmtx); goto done; } @@ -2864,7 +2972,7 @@ BIF_RETTYPE nodes_1(BIF_ALIST_1) hp += 2; } ASSERT(endp == hp); - erts_smp_rwmtx_rwunlock(&erts_dist_table_rwmtx); + erts_smp_rwmtx_runlock(&erts_dist_table_rwmtx); done: UnUseTmpHeap(2,BIF_P); @@ -2932,23 +3040,23 @@ monitor_node(Process* p, Eterm Node, Eterm Bool, Eterm Options) if (Bool == am_true) { ASSERT(dep->cid != NIL); lnk = erts_add_or_lookup_link(&(dep->node_links), LINK_NODE, - p->id); + p->common.id); ++ERTS_LINK_REFC(lnk); - lnk = erts_add_or_lookup_link(&(p->nlinks), LINK_NODE, Node); + lnk = erts_add_or_lookup_link(&ERTS_P_LINKS(p), LINK_NODE, Node); ++ERTS_LINK_REFC(lnk); } else { - lnk = erts_lookup_link(dep->node_links, p->id); + lnk = erts_lookup_link(dep->node_links, p->common.id); if (lnk != NULL) { if ((--ERTS_LINK_REFC(lnk)) == 0) { erts_destroy_link(erts_remove_link(&(dep->node_links), - p->id)); + p->common.id)); } } - lnk = erts_lookup_link(p->nlinks, Node); + lnk = erts_lookup_link(ERTS_P_LINKS(p), Node); if (lnk != NULL) { if ((--ERTS_LINK_REFC(lnk)) == 0) { - erts_destroy_link(erts_remove_link(&(p->nlinks), + erts_destroy_link(erts_remove_link(&ERTS_P_LINKS(p), Node)); } } @@ -3152,10 +3260,10 @@ send_nodes_mon_msgs(Process *c_p, Eterm what, Eterm node, Eterm type, Eterm reas DTRACE_CHARBUF(type_str, 12); DTRACE_CHARBUF(reason_str, 64); - erts_snprintf(what_str, sizeof(what_str), "%T", what); - erts_snprintf(node_str, sizeof(node_str), "%T", node); - erts_snprintf(type_str, sizeof(type_str), "%T", type); - erts_snprintf(reason_str, sizeof(reason_str), "%T", reason); + erts_snprintf(what_str, sizeof(DTRACE_CHARBUF_NAME(what_str)), "%T", what); + erts_snprintf(node_str, sizeof(DTRACE_CHARBUF_NAME(node_str)), "%T", node); + erts_snprintf(type_str, sizeof(DTRACE_CHARBUF_NAME(type_str)), "%T", type); + erts_snprintf(reason_str, sizeof(DTRACE_CHARBUF_NAME(reason_str)), "%T", reason); DTRACE5(dist_monitor, erts_this_node_sysname, what_str, node_str, type_str, reason_str); } @@ -3510,7 +3618,7 @@ erts_processes_monitoring_nodes(Process *c_p) olist = erts_bld_cons(hpp, szp, am_nodedown_reason, olist); res = erts_bld_cons(hpp, szp, erts_bld_tuple(hpp, szp, 2, - nmp->proc->id, + nmp->proc->common.id, olist), res); } diff --git a/erts/emulator/beam/dist.h b/erts/emulator/beam/dist.h index 845151c895..f32b999198 100644 --- a/erts/emulator/beam/dist.h +++ b/erts/emulator/beam/dist.h @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 1996-2011. All Rights Reserved. + * Copyright Ericsson AB 1996-2014. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -38,14 +38,18 @@ #define DFLAG_UNICODE_IO 0x1000 #define DFLAG_DIST_HDR_ATOM_CACHE 0x2000 #define DFLAG_SMALL_ATOM_TAGS 0x4000 -#define DFLAGS_INTERNAL_TAGS 0x8000 +#define DFLAG_INTERNAL_TAGS 0x8000 +#define DFLAG_UTF8_ATOMS 0x10000 +#define DFLAG_MAP_TAG 0x20000 /* All flags that should be enabled when term_to_binary/1 is used. */ #define TERM_TO_BINARY_DFLAGS (DFLAG_EXTENDED_REFERENCES \ | DFLAG_NEW_FUN_TAGS \ + | DFLAG_NEW_FLOATS \ | DFLAG_EXTENDED_PIDS_PORTS \ | DFLAG_EXPORT_PTR_TAG \ - | DFLAG_BIT_BINARIES) + | DFLAG_BIT_BINARIES \ + | DFLAG_MAP_TAG) /* opcodes used in distribution messages */ #define DOP_LINK 1 @@ -187,11 +191,12 @@ void erts_schedule_dist_command(Port *prt, DistEntry *dist_entry) if (prt) { ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt)); - ASSERT((erts_port_status_get(prt) & ERTS_PORT_SFLGS_DEAD) == 0); + ASSERT((erts_atomic32_read_nob(&prt->state) + & ERTS_PORT_SFLGS_DEAD) == 0); ASSERT(prt->dist_entry); dep = prt->dist_entry; - id = prt->id; + id = prt->common.id; } else { ASSERT(dist_entry); @@ -203,13 +208,8 @@ void erts_schedule_dist_command(Port *prt, DistEntry *dist_entry) id = dep->cid; } - if (!erts_smp_atomic_xchg_mb(&dep->dist_cmd_scheduled, 1)) { - (void) erts_port_task_schedule(id, - &dep->dist_cmd, - ERTS_PORT_TASK_DIST_CMD, - (ErlDrvEvent) -1, - NULL); - } + if (!erts_smp_atomic_xchg_mb(&dep->dist_cmd_scheduled, 1)) + erts_port_task_schedule(id, &dep->dist_cmd, ERTS_PORT_TASK_DIST_CMD); } #endif diff --git a/erts/emulator/beam/erl_afit_alloc.c b/erts/emulator/beam/erl_afit_alloc.c index 570cc59be2..eca4e3b3bb 100644 --- a/erts/emulator/beam/erl_afit_alloc.c +++ b/erts/emulator/beam/erl_afit_alloc.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 2003-2011. All Rights Reserved. + * Copyright Ericsson AB 2003-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -37,15 +37,20 @@ #define GET_ERL_AF_ALLOC_IMPL #include "erl_afit_alloc.h" +struct AFFreeBlock_t_ { + Block_t block_head; + AFFreeBlock_t *prev; + AFFreeBlock_t *next; +}; +#define AF_BLK_SZ(B) MBC_FBLK_SZ(&(B)->block_head) #define MIN_MBC_SZ (16*1024) #define MIN_MBC_FIRST_FREE_SZ (4*1024) /* Prototypes of callback functions */ -static Block_t * get_free_block (Allctr_t *, Uint, - Block_t *, Uint, Uint32); -static void link_free_block (Allctr_t *, Block_t *, Uint32); -static void unlink_free_block (Allctr_t *, Block_t *, Uint32); +static Block_t * get_free_block (Allctr_t *, Uint, Block_t *, Uint); +static void link_free_block (Allctr_t *, Block_t *); +static void unlink_free_block (Allctr_t *, Block_t *); static Eterm info_options (Allctr_t *, char *, int *, @@ -78,8 +83,6 @@ erts_afalc_start(AFAllctr_t *afallctr, sys_memcpy((void *) afallctr, (void *) &zero.allctr, sizeof(AFAllctr_t)); - init->sbmbct = 0; /* Small mbc not supported by afit */ - allctr->mbc_header_size = sizeof(Carrier_t); allctr->min_mbc_size = MIN_MBC_SZ; allctr->min_mbc_first_free_size = MIN_MBC_FIRST_FREE_SZ; @@ -95,6 +98,9 @@ erts_afalc_start(AFAllctr_t *afallctr, allctr->get_next_mbc_size = NULL; allctr->creating_mbc = NULL; allctr->destroying_mbc = NULL; + allctr->add_mbc = NULL; + allctr->remove_mbc = NULL; + allctr->largest_fblk_in_mbc = NULL; allctr->init_atoms = init_atoms; #ifdef ERTS_ALLOC_UTIL_HARD_DEBUG @@ -111,14 +117,13 @@ erts_afalc_start(AFAllctr_t *afallctr, } static Block_t * -get_free_block(Allctr_t *allctr, Uint size, Block_t *cand_blk, Uint cand_size, - Uint32 flags) +get_free_block(Allctr_t *allctr, Uint size, Block_t *cand_blk, Uint cand_size) { AFAllctr_t *afallctr = (AFAllctr_t *) allctr; ASSERT(!cand_blk || cand_size >= size); - if (afallctr->free_list && BLK_SZ(afallctr->free_list) >= size) { + if (afallctr->free_list && AF_BLK_SZ(afallctr->free_list) >= size) { AFFreeBlock_t *res = afallctr->free_list; afallctr->free_list = res->next; if (res->next) @@ -130,12 +135,12 @@ get_free_block(Allctr_t *allctr, Uint size, Block_t *cand_blk, Uint cand_size, } static void -link_free_block(Allctr_t *allctr, Block_t *block, Uint32 flags) +link_free_block(Allctr_t *allctr, Block_t *block) { AFFreeBlock_t *blk = (AFFreeBlock_t *) block; AFAllctr_t *afallctr = (AFAllctr_t *) allctr; - if (afallctr->free_list && BLK_SZ(afallctr->free_list) > BLK_SZ(blk)) { + if (afallctr->free_list && AF_BLK_SZ(afallctr->free_list) > AF_BLK_SZ(blk)) { blk->next = afallctr->free_list->next; blk->prev = afallctr->free_list; afallctr->free_list->next = blk; @@ -151,7 +156,7 @@ link_free_block(Allctr_t *allctr, Block_t *block, Uint32 flags) } static void -unlink_free_block(Allctr_t *allctr, Block_t *block, Uint32 flags) +unlink_free_block(Allctr_t *allctr, Block_t *block) { AFFreeBlock_t *blk = (AFFreeBlock_t *) block; AFAllctr_t *afallctr = (AFAllctr_t *) allctr; @@ -254,10 +259,10 @@ info_options(Allctr_t *allctr, * to erts_afalc_test() * \* */ -unsigned long -erts_afalc_test(unsigned long op, unsigned long a1, unsigned long a2) +UWord +erts_afalc_test(UWord op, UWord a1, UWord a2) { switch (op) { - default: ASSERT(0); return ~((unsigned long) 0); + default: ASSERT(0); return ~((UWord) 0); } } diff --git a/erts/emulator/beam/erl_afit_alloc.h b/erts/emulator/beam/erl_afit_alloc.h index ea408a7194..b90ac8f7c5 100644 --- a/erts/emulator/beam/erl_afit_alloc.h +++ b/erts/emulator/beam/erl_afit_alloc.h @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 2003-2009. All Rights Reserved. + * Copyright Ericsson AB 2003-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -49,11 +49,6 @@ Allctr_t *erts_afalc_start(AFAllctr_t *, AFAllctrInit_t *, AllctrInit_t *); #include "erl_alloc_util.h" typedef struct AFFreeBlock_t_ AFFreeBlock_t; -struct AFFreeBlock_t_ { - Block_t block_head; - AFFreeBlock_t *prev; - AFFreeBlock_t *next; -}; struct AFAllctr_t_ { Allctr_t allctr; /* Has to be first! */ @@ -61,7 +56,7 @@ struct AFAllctr_t_ { AFFreeBlock_t * free_list; }; -unsigned long erts_afalc_test(unsigned long, unsigned long, unsigned long); +UWord erts_afalc_test(UWord, UWord, UWord); #endif /* #if defined(GET_ERL_AF_ALLOC_IMPL) && !defined(ERL_AF_ALLOC_IMPL__) */ diff --git a/erts/emulator/beam/erl_alloc.c b/erts/emulator/beam/erl_alloc.c index 6fce032f9d..05ac24e04d 100644 --- a/erts/emulator/beam/erl_alloc.c +++ b/erts/emulator/beam/erl_alloc.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 2002-2012. All Rights Reserved. + * Copyright Ericsson AB 2002-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -71,6 +71,23 @@ #define AU_ALLOC_DEFAULT_ENABLE(X) (X) #endif +#define ERTS_ALC_DEFAULT_ENABLED_ACUL 60 +#define ERTS_ALC_DEFAULT_ENABLED_ACUL_EHEAP_ALLOC 45 +#define ERTS_ALC_DEFAULT_ENABLED_ACUL_LL_ALLOC 85 + +#define ERTS_ALC_DEFAULT_ACUL ERTS_ALC_DEFAULT_ENABLED_ACUL +#define ERTS_ALC_DEFAULT_ACUL_EHEAP_ALLOC ERTS_ALC_DEFAULT_ENABLED_ACUL_EHEAP_ALLOC +#define ERTS_ALC_DEFAULT_ACUL_LL_ALLOC ERTS_ALC_DEFAULT_ENABLED_ACUL_LL_ALLOC + +#ifndef ERTS_SMP +# undef ERTS_ALC_DEFAULT_ACUL +# define ERTS_ALC_DEFAULT_ACUL 0 +# undef ERTS_ALC_DEFAULT_ACUL_EHEAP_ALLOC +# define ERTS_ALC_DEFAULT_ACUL_EHEAP_ALLOC 0 +# undef ERTS_ALC_DEFAULT_ACUL_LL_ALLOC +# define ERTS_ALC_DEFAULT_ACUL_LL_ALLOC 0 +#endif + #ifdef DEBUG static Uint install_debug_functions(void); #if 0 @@ -83,6 +100,8 @@ static Uint install_debug_functions(void); #endif #endif +static int lock_all_physical_memory = 0; + ErtsAllocatorFunctions_t erts_allctrs[ERTS_ALC_A_MAX+1]; ErtsAllocatorInfo_t erts_allctrs_info[ERTS_ALC_A_MAX+1]; ErtsAllocatorThrSpec_t erts_allctr_thr_spec[ERTS_ALC_A_MAX+1]; @@ -101,11 +120,9 @@ typedef union { char align_aoffa[ERTS_ALC_CACHE_LINE_ALIGN_SIZE(sizeof(AOFFAllctr_t))]; } ErtsAllocatorState_t; -static ErtsAllocatorState_t sbmbc_alloc_state; static ErtsAllocatorState_t std_alloc_state; static ErtsAllocatorState_t ll_alloc_state; #if HALFWORD_HEAP -static ErtsAllocatorState_t sbmbc_low_alloc_state; static ErtsAllocatorState_t std_low_alloc_state; static ErtsAllocatorState_t ll_low_alloc_state; #endif @@ -120,6 +137,7 @@ static ErtsAllocatorState_t fix_alloc_state; typedef struct { erts_smp_atomic32_t refc; int only_sz; + int internal; Uint req_sched; Process *proc; Eterm ref; @@ -162,6 +180,7 @@ enum allctr_type { struct au_init { int enable; int thr_spec; + int carrier_migration_allowed; enum allctr_type atype; struct { AllctrInit_t util; @@ -200,7 +219,6 @@ typedef struct { char *mtrace; char *nodename; } instr; - struct au_init sbmbc_alloc; struct au_init sl_alloc; struct au_init std_alloc; struct au_init ll_alloc; @@ -211,13 +229,12 @@ typedef struct { struct au_init driver_alloc; struct au_init fix_alloc; #if HALFWORD_HEAP - struct au_init sbmbc_low_alloc; struct au_init std_low_alloc; struct au_init ll_low_alloc; #endif } erts_alc_hndl_args_init_t; -#define ERTS_AU_INIT__ {0, 0, GOODFIT, DEFAULT_ALLCTR_INIT, {1,1,1,1}} +#define ERTS_AU_INIT__ {0, 0, 1, GOODFIT, DEFAULT_ALLCTR_INIT, {1,1,1,1}} #define SET_DEFAULT_ALLOC_OPTS(IP) \ do { \ @@ -226,34 +243,6 @@ do { \ } while (0) static void -set_default_sbmbc_alloc_opts(struct au_init *ip) -{ - SET_DEFAULT_ALLOC_OPTS(ip); - ip->enable = 0; - ip->thr_spec = 0; - ip->atype = BESTFIT; - ip->init.bf.ao = 1; - ip->init.util.ramv = 0; - ip->init.util.mmsbc = 0; - ip->init.util.mmmbc = 500; - ip->init.util.sbct = ~((UWord) 0); - ip->init.util.name_prefix = "sbmbc_"; - ip->init.util.alloc_no = ERTS_ALC_A_SBMBC; -#ifndef SMALL_MEMORY - ip->init.util.mmbcs = 2*1024*1024; /* Main carrier size */ -#else - ip->init.util.mmbcs = 1*1024*1024; /* Main carrier size */ -#endif - ip->init.util.ts = ERTS_ALC_MTA_SBMBC; - ip->init.util.asbcst = 0; - ip->init.util.rsbcst = 0; - ip->init.util.rsbcmt = 0; - ip->init.util.rmbcmt = 0; - ip->init.util.sbmbct = 0; - ip->init.util.sbmbcs = 0; -} - -static void set_default_sl_alloc_opts(struct au_init *ip) { SET_DEFAULT_ALLOC_OPTS(ip); @@ -261,7 +250,6 @@ set_default_sl_alloc_opts(struct au_init *ip) ip->thr_spec = 1; ip->atype = GOODFIT; ip->init.util.name_prefix = "sl_"; - ip->init.util.mmmbc = 5; ip->init.util.alloc_no = ERTS_ALC_A_SHORT_LIVED; #ifndef SMALL_MEMORY ip->init.util.mmbcs = 128*1024; /* Main carrier size */ @@ -274,7 +262,7 @@ set_default_sl_alloc_opts(struct au_init *ip) ip->init.util.force = 1; ip->init.util.low_mem = 1; #endif - + ip->init.util.acul = ERTS_ALC_DEFAULT_ACUL; } static void @@ -285,7 +273,6 @@ set_default_std_alloc_opts(struct au_init *ip) ip->thr_spec = 1; ip->atype = BESTFIT; ip->init.util.name_prefix = "std_"; - ip->init.util.mmmbc = 5; ip->init.util.alloc_no = ERTS_ALC_A_STANDARD; #ifndef SMALL_MEMORY ip->init.util.mmbcs = 128*1024; /* Main carrier size */ @@ -293,6 +280,7 @@ set_default_std_alloc_opts(struct au_init *ip) ip->init.util.mmbcs = 32*1024; /* Main carrier size */ #endif ip->init.util.ts = ERTS_ALC_MTA_STANDARD; + ip->init.util.acul = ERTS_ALC_DEFAULT_ACUL; } static void @@ -305,22 +293,20 @@ set_default_ll_alloc_opts(struct au_init *ip) ip->init.bf.ao = 1; ip->init.util.ramv = 0; ip->init.util.mmsbc = 0; - ip->init.util.mmmbc = 0; ip->init.util.sbct = ~((UWord) 0); ip->init.util.name_prefix = "ll_"; ip->init.util.alloc_no = ERTS_ALC_A_LONG_LIVED; #ifndef SMALL_MEMORY - ip->init.util.mmbcs = 2*1024*1024; /* Main carrier size */ + ip->init.util.mmbcs = 2*1024*1024 - 40; /* Main carrier size */ #else - ip->init.util.mmbcs = 1*1024*1024; /* Main carrier size */ + ip->init.util.mmbcs = 1*1024*1024 - 40; /* Main carrier size */ #endif ip->init.util.ts = ERTS_ALC_MTA_LONG_LIVED; ip->init.util.asbcst = 0; ip->init.util.rsbcst = 0; ip->init.util.rsbcmt = 0; ip->init.util.rmbcmt = 0; - ip->init.util.sbmbct = 0; - ip->init.util.sbmbcs = 0; + ip->init.util.acul = ERTS_ALC_DEFAULT_ACUL_LL_ALLOC; } static void @@ -329,6 +315,7 @@ set_default_temp_alloc_opts(struct au_init *ip) SET_DEFAULT_ALLOC_OPTS(ip); ip->enable = AU_ALLOC_DEFAULT_ENABLE(1); ip->thr_spec = 1; + ip->carrier_migration_allowed = 0; ip->atype = AFIT; ip->init.util.name_prefix = "temp_"; ip->init.util.alloc_no = ERTS_ALC_A_TEMPORARY; @@ -353,7 +340,6 @@ set_default_eheap_alloc_opts(struct au_init *ip) ip->enable = AU_ALLOC_DEFAULT_ENABLE(1); ip->thr_spec = 1; ip->atype = GOODFIT; - ip->init.util.mmmbc = 100; ip->init.util.name_prefix = "eheap_"; ip->init.util.alloc_no = ERTS_ALC_A_EHEAP; #ifndef SMALL_MEMORY @@ -367,6 +353,7 @@ set_default_eheap_alloc_opts(struct au_init *ip) ip->init.util.force = 1; ip->init.util.low_mem = 1; #endif + ip->init.util.acul = ERTS_ALC_DEFAULT_ACUL_EHEAP_ALLOC; } static void @@ -376,7 +363,6 @@ set_default_binary_alloc_opts(struct au_init *ip) ip->enable = AU_ALLOC_DEFAULT_ENABLE(1); ip->thr_spec = 1; ip->atype = BESTFIT; - ip->init.util.mmmbc = 50; ip->init.util.name_prefix = "binary_"; ip->init.util.alloc_no = ERTS_ALC_A_BINARY; #ifndef SMALL_MEMORY @@ -385,6 +371,7 @@ set_default_binary_alloc_opts(struct au_init *ip) ip->init.util.mmbcs = 32*1024; /* Main carrier size */ #endif ip->init.util.ts = ERTS_ALC_MTA_BINARY; + ip->init.util.acul = ERTS_ALC_DEFAULT_ACUL; } static void @@ -394,7 +381,6 @@ set_default_ets_alloc_opts(struct au_init *ip) ip->enable = AU_ALLOC_DEFAULT_ENABLE(1); ip->thr_spec = 1; ip->atype = BESTFIT; - ip->init.util.mmmbc = 100; ip->init.util.name_prefix = "ets_"; ip->init.util.alloc_no = ERTS_ALC_A_ETS; #ifndef SMALL_MEMORY @@ -403,6 +389,7 @@ set_default_ets_alloc_opts(struct au_init *ip) ip->init.util.mmbcs = 32*1024; /* Main carrier size */ #endif ip->init.util.ts = ERTS_ALC_MTA_ETS; + ip->init.util.acul = ERTS_ALC_DEFAULT_ACUL; } static void @@ -420,6 +407,7 @@ set_default_driver_alloc_opts(struct au_init *ip) ip->init.util.mmbcs = 32*1024; /* Main carrier size */ #endif ip->init.util.ts = ERTS_ALC_MTA_DRIVER; + ip->init.util.acul = ERTS_ALC_DEFAULT_ACUL; } static void @@ -440,6 +428,7 @@ set_default_fix_alloc_opts(struct au_init *ip, ip->init.util.mmbcs = 128*1024; /* Main carrier size */ #endif ip->init.util.ts = ERTS_ALC_MTA_FIXED_SIZE; + ip->init.util.acul = ERTS_ALC_DEFAULT_ACUL; } #ifdef ERTS_SMP @@ -462,13 +451,6 @@ adjust_tpref(struct au_init *ip, int no_sched) /* ... shrink smallest multi-block carrier size */ if (ip->default_.smbcs) ip->init.util.smbcs /= ERTS_MIN(4, no_sched); - /* ... and more than three allocators shrink - max mseg multi-block carriers */ - if (ip->default_.mmmbc && no_sched > 2) { - ip->init.util.mmmbc /= ERTS_MIN(4, no_sched - 1); - if (ip->init.util.mmmbc < 3) - ip->init.util.mmmbc = 3; - } } } @@ -495,6 +477,70 @@ refuse_af_strategy(struct au_init *init) static void hdbg_init(void); #endif +static void adjust_fix_alloc_sizes(UWord extra_block_size) +{ + + if (extra_block_size && erts_allctrs_info[ERTS_ALC_A_FIXED_SIZE].enabled) { + int j; + +#ifdef ERTS_SMP + if (erts_allctrs_info[ERTS_ALC_A_FIXED_SIZE].thr_spec) { + int i; + ErtsAllocatorThrSpec_t* tspec; + + tspec = &erts_allctr_thr_spec[ERTS_ALC_A_FIXED_SIZE]; + ASSERT(tspec->enabled); + + for (i=0; i < tspec->size; i++) { + Allctr_t* allctr = tspec->allctr[i]; + for (j=0; j < ERTS_ALC_NO_FIXED_SIZES; ++j) { + allctr->fix[j].type_size += extra_block_size; + } + } + } + else +#endif + { + Allctr_t* allctr = erts_allctrs_info[ERTS_ALC_A_FIXED_SIZE].extra; + for (j=0; j < ERTS_ALC_NO_FIXED_SIZES; ++j) { + allctr->fix[j].type_size += extra_block_size; + } + } + } +} + +static ERTS_INLINE int +strategy_support_carrier_migration(struct au_init *auip) +{ + /* + * Currently only aoff, aoffcbf and aoffcaobf support carrier + * migration, i.e, type AOFIRSTFIT. + */ + return auip->atype == AOFIRSTFIT; +} + +static ERTS_INLINE void +adjust_carrier_migration_support(struct au_init *auip) +{ +#ifdef ERTS_SMP + if (auip->init.util.acul) { + auip->thr_spec = -1; /* Need thread preferred */ + + /* + * If strategy cannot handle carrier migration, + * default to a strategy that can... + */ + if (!strategy_support_carrier_migration(auip)) { + /* Default to aoffcbf */ + auip->atype = AOFIRSTFIT; + auip->init.aoff.flavor = AOFF_BF; + } + } +#else + auip->init.util.acul = 0; +#endif +} + void erts_alloc_init(int *argc, char **argv, ErtsAllocInitOpts *eaiop) { @@ -515,9 +561,9 @@ erts_alloc_init(int *argc, char **argv, ErtsAllocInitOpts *eaiop) = sizeof(Process); #if !HALFWORD_HEAP fix_type_sizes[ERTS_ALC_FIX_TYPE_IX(ERTS_ALC_T_MONITOR_SH)] - = ERTS_MONITOR_SH_SIZE; + = ERTS_MONITOR_SH_SIZE * sizeof(Uint); fix_type_sizes[ERTS_ALC_FIX_TYPE_IX(ERTS_ALC_T_NLINK_SH)] - = ERTS_LINK_SH_SIZE; + = ERTS_LINK_SH_SIZE * sizeof(Uint); #endif fix_type_sizes[ERTS_ALC_FIX_TYPE_IX(ERTS_ALC_T_DRV_EV_D_STATE)] = sizeof(ErtsDrvEventDataState); @@ -533,15 +579,18 @@ erts_alloc_init(int *argc, char **argv, ErtsAllocInitOpts *eaiop) hdbg_init(); #endif - erts_have_sbmbc_alloc = 0; + lock_all_physical_memory = 0; + ncpu = eaiop->ncpu; if (ncpu < 1) ncpu = 1; + erts_tsd_key_create(&erts_allctr_prelock_tsd_key, + "erts_allctr_prelock_tsd_key"); + erts_sys_alloc_init(); erts_init_utils_mem(); - set_default_sbmbc_alloc_opts(&init.sbmbc_alloc); set_default_sl_alloc_opts(&init.sl_alloc); set_default_std_alloc_opts(&init.std_alloc); set_default_ll_alloc_opts(&init.ll_alloc); @@ -556,8 +605,21 @@ erts_alloc_init(int *argc, char **argv, ErtsAllocInitOpts *eaiop) if (argc && argv) handle_args(argc, argv, &init); + if (lock_all_physical_memory) { +#ifdef HAVE_MLOCKALL + errno = 0; + if (mlockall(MCL_CURRENT|MCL_FUTURE) != 0) { + int err = errno; + char *errstr = err ? strerror(err) : "unknown"; + erl_exit(-1, "Failed to lock physical memory: %s (%d)\n", + errstr, err); + } +#else + erl_exit(-1, "Failed to lock physical memory: Not supported\n"); +#endif + } + #ifndef ERTS_SMP - init.sbmbc_alloc.thr_spec = 0; init.sl_alloc.thr_spec = 0; init.std_alloc.thr_spec = 0; init.ll_alloc.thr_spec = 0; @@ -568,9 +630,21 @@ erts_alloc_init(int *argc, char **argv, ErtsAllocInitOpts *eaiop) init.fix_alloc.thr_spec = 0; #endif + /* Make adjustments for carrier migration support */ + init.temp_alloc.init.util.acul = 0; + adjust_carrier_migration_support(&init.sl_alloc); + adjust_carrier_migration_support(&init.std_alloc); + adjust_carrier_migration_support(&init.ll_alloc); + adjust_carrier_migration_support(&init.eheap_alloc); + adjust_carrier_migration_support(&init.binary_alloc); + adjust_carrier_migration_support(&init.ets_alloc); + adjust_carrier_migration_support(&init.driver_alloc); + adjust_carrier_migration_support(&init.fix_alloc); + if (init.erts_alloc_config) { /* Adjust flags that erts_alloc_config won't like */ - init.sbmbc_alloc.thr_spec = 0; + + /* No thread specific instances */ init.temp_alloc.thr_spec = 0; init.sl_alloc.thr_spec = 0; init.std_alloc.thr_spec = 0; @@ -579,7 +653,18 @@ erts_alloc_init(int *argc, char **argv, ErtsAllocInitOpts *eaiop) init.binary_alloc.thr_spec = 0; init.ets_alloc.thr_spec = 0; init.driver_alloc.thr_spec = 0; - init.fix_alloc.thr_spec = 0; + init.fix_alloc.thr_spec = 0; + + /* No carrier migration */ + init.temp_alloc.init.util.acul = 0; + init.sl_alloc.init.util.acul = 0; + init.std_alloc.init.util.acul = 0; + init.ll_alloc.init.util.acul = 0; + init.eheap_alloc.init.util.acul = 0; + init.binary_alloc.init.util.acul = 0; + init.ets_alloc.init.util.acul = 0; + init.driver_alloc.init.util.acul = 0; + init.fix_alloc.init.util.acul = 0; } #ifdef ERTS_SMP @@ -588,7 +673,6 @@ erts_alloc_init(int *argc, char **argv, ErtsAllocInitOpts *eaiop) init.temp_alloc.thr_spec = erts_no_schedulers; /* Others must use thread preferred interface */ - adjust_tpref(&init.sbmbc_alloc, erts_no_schedulers); adjust_tpref(&init.sl_alloc, erts_no_schedulers); adjust_tpref(&init.std_alloc, erts_no_schedulers); adjust_tpref(&init.ll_alloc, erts_no_schedulers); @@ -607,7 +691,6 @@ erts_alloc_init(int *argc, char **argv, ErtsAllocInitOpts *eaiop) * The following allocators cannot be run with afit strategy. * Make sure they don't... */ - refuse_af_strategy(&init.sbmbc_alloc); refuse_af_strategy(&init.sl_alloc); refuse_af_strategy(&init.std_alloc); refuse_af_strategy(&init.ll_alloc); @@ -627,6 +710,7 @@ erts_alloc_init(int *argc, char **argv, ErtsAllocInitOpts *eaiop) init.mseg.nos = erts_no_schedulers; erts_mseg_init(&init.mseg); #endif + erts_alcu_init(&init.alloc_util); erts_afalc_init(); erts_bfalc_init(); @@ -651,11 +735,6 @@ erts_alloc_init(int *argc, char **argv, ErtsAllocInitOpts *eaiop) #if HALFWORD_HEAP /* Init low memory variants by cloning */ - init.sbmbc_low_alloc = init.sbmbc_alloc; - init.sbmbc_low_alloc.init.util.name_prefix = "sbmbc_low_"; - init.sbmbc_low_alloc.init.util.alloc_no = ERTS_ALC_A_SBMBC_LOW; - init.sbmbc_low_alloc.init.util.low_mem = 1; - init.std_low_alloc = init.std_alloc; init.std_low_alloc.init.util.name_prefix = "std_low_"; init.std_low_alloc.init.util.alloc_no = ERTS_ALC_A_STANDARD_LOW; @@ -668,13 +747,11 @@ erts_alloc_init(int *argc, char **argv, ErtsAllocInitOpts *eaiop) init.ll_low_alloc.init.util.force = 1; init.ll_low_alloc.init.util.low_mem = 1; - set_au_allocator(ERTS_ALC_A_SBMBC_LOW, &init.sbmbc_low_alloc, ncpu); set_au_allocator(ERTS_ALC_A_STANDARD_LOW, &init.std_low_alloc, ncpu); set_au_allocator(ERTS_ALC_A_LONG_LIVED_LOW, &init.ll_low_alloc, ncpu); #endif /* HALFWORD */ set_au_allocator(ERTS_ALC_A_TEMPORARY, &init.temp_alloc, ncpu); - set_au_allocator(ERTS_ALC_A_SBMBC, &init.sbmbc_alloc, ncpu); set_au_allocator(ERTS_ALC_A_SHORT_LIVED, &init.sl_alloc, ncpu); set_au_allocator(ERTS_ALC_A_STANDARD, &init.std_alloc, ncpu); set_au_allocator(ERTS_ALC_A_LONG_LIVED, &init.ll_alloc, ncpu); @@ -701,20 +778,6 @@ erts_alloc_init(int *argc, char **argv, ErtsAllocInitOpts *eaiop) erts_mtrace_init(init.instr.mtrace, init.instr.nodename); - /* sbmbc_alloc() needs to be started first */ - start_au_allocator(ERTS_ALC_A_SBMBC, - &init.sbmbc_alloc, - &sbmbc_alloc_state); -#if HALFWORD_HEAP - start_au_allocator(ERTS_ALC_A_SBMBC_LOW, - &init.sbmbc_low_alloc, - &sbmbc_low_alloc_state); - erts_have_sbmbc_alloc = (init.sbmbc_alloc.enable - && init.sbmbc_low_alloc.enable); -#else - erts_have_sbmbc_alloc = init.sbmbc_alloc.enable; -#endif - start_au_allocator(ERTS_ALC_A_TEMPORARY, &init.temp_alloc, &temp_alloc_state); @@ -768,7 +831,7 @@ erts_alloc_init(int *argc, char **argv, ErtsAllocInitOpts *eaiop) #ifdef DEBUG extra_block_size += install_debug_functions(); #endif - + adjust_fix_alloc_sizes(extra_block_size); } void @@ -1104,6 +1167,26 @@ get_kb_value(char *param_end, char** argv, int* ip) return ((Uint) tmp)*1024; } +static UWord +get_mb_value(char *param_end, char** argv, int* ip) +{ + SWord tmp; + UWord max = ((~((UWord) 0))/(1024*1024)) + 1; + char *rest; + char *param = argv[*ip]+1; + char *value = get_value(param_end, argv, ip); + errno = 0; + tmp = (SWord) ErtsStrToSint(value, &rest, 10); + if (errno != 0 || rest == value || tmp < 0 || max < ((UWord) tmp)) + bad_value(param, param_end, value); + if (max == (UWord) tmp) + return ~((UWord) 0); + else + return ((UWord) tmp)*1024*1024; +} + + +#if 0 static Uint get_byte_value(char *param_end, char** argv, int* ip) { @@ -1117,6 +1200,7 @@ get_byte_value(char *param_end, char** argv, int* ip) bad_value(param, param_end, value); return (Uint) tmp; } +#endif static Uint get_amount_value(char *param_end, char** argv, int* ip) @@ -1132,17 +1216,57 @@ get_amount_value(char *param_end, char** argv, int* ip) return (Uint) tmp; } +static Uint +get_acul_value(struct au_init *auip, char *param_end, char** argv, int* ip) +{ + Sint tmp; + char *rest; + char *param = argv[*ip]+1; + char *value = get_value(param_end, argv, ip); + if (sys_strcmp(value, "de") == 0) { + switch (auip->init.util.alloc_no) { + case ERTS_ALC_A_LONG_LIVED: +#if HALFWORD_HEAP + case ERTS_ALC_A_LONG_LIVED_LOW: +#endif + return ERTS_ALC_DEFAULT_ENABLED_ACUL_LL_ALLOC; + case ERTS_ALC_A_EHEAP: + return ERTS_ALC_DEFAULT_ENABLED_ACUL_EHEAP_ALLOC; + default: + return ERTS_ALC_DEFAULT_ENABLED_ACUL; + } + } + errno = 0; + tmp = (Sint) ErtsStrToSint(value, &rest, 10); + if (errno != 0 || rest == value || tmp < 0 || 100 < tmp) + bad_value(param, param_end, value); + return (Uint) tmp; +} + static void handle_au_arg(struct au_init *auip, char* sub_param, char** argv, - int* ip) + int* ip, + int u_switch) { char *param = argv[*ip]+1; switch (sub_param[0]) { case 'a': - if(has_prefix("asbcst", sub_param)) { + if (has_prefix("acul", sub_param)) { + if (!auip->carrier_migration_allowed) { + if (!u_switch) + goto bad_switch; + else { + /* ignore */ + (void) get_acul_value(auip, sub_param + 4, argv, ip); + break; + } + } + auip->init.util.acul = get_acul_value(auip, sub_param + 4, argv, ip); + } + else if(has_prefix("asbcst", sub_param)) { auip->init.util.asbcst = get_kb_value(sub_param + 6, argv, ip); } else if(has_prefix("as", sub_param)) { @@ -1163,10 +1287,21 @@ handle_au_arg(struct au_init *auip, } else if (strcmp("aoff", alg) == 0) { auip->atype = AOFIRSTFIT; + auip->init.aoff.flavor = AOFF_AOFF; + } + else if (strcmp("aoffcbf", alg) == 0) { + auip->atype = AOFIRSTFIT; + auip->init.aoff.flavor = AOFF_BF; + } + else if (strcmp("aoffcaobf", alg) == 0) { + auip->atype = AOFIRSTFIT; + auip->init.aoff.flavor = AOFF_AOBF; } else { bad_value(param, sub_param + 1, alg); } + if (!strategy_support_carrier_migration(auip)) + auip->init.util.acul = 0; } else goto bad_switch; @@ -1232,12 +1367,6 @@ handle_au_arg(struct au_init *auip, if(has_prefix("sbct", sub_param)) { auip->init.util.sbct = get_kb_value(sub_param + 4, argv, ip); } - else if (has_prefix("sbmbcs", sub_param)) { - auip->init.util.sbmbcs = get_byte_value(sub_param + 6, argv, ip); - } - else if (has_prefix("sbmbct", sub_param)) { - auip->init.util.sbmbct = get_byte_value(sub_param + 6, argv, ip); - } else if (has_prefix("smbcs", sub_param)) { auip->default_.smbcs = 0; auip->init.util.smbcs = get_kb_value(sub_param + 5, argv, ip); @@ -1253,6 +1382,7 @@ handle_au_arg(struct au_init *auip, } else if (res == 0) { auip->thr_spec = 0; + auip->init.util.acul = 0; break; } goto bad_switch; @@ -1267,7 +1397,6 @@ static void handle_args(int *argc, char **argv, erts_alc_hndl_args_init_t *init) { struct au_init *aui[] = { - &init->sbmbc_alloc, &init->binary_alloc, &init->std_alloc, &init->ets_alloc, @@ -1294,25 +1423,22 @@ handle_args(int *argc, char **argv, erts_alc_hndl_args_init_t *init) case 'M': switch (argv[i][2]) { case 'B': - handle_au_arg(&init->binary_alloc, &argv[i][3], argv, &i); - break; - case 'C': - handle_au_arg(&init->sbmbc_alloc, &argv[i][3], argv, &i); + handle_au_arg(&init->binary_alloc, &argv[i][3], argv, &i, 0); break; case 'D': - handle_au_arg(&init->std_alloc, &argv[i][3], argv, &i); + handle_au_arg(&init->std_alloc, &argv[i][3], argv, &i, 0); break; case 'E': - handle_au_arg(&init->ets_alloc, &argv[i][3], argv, &i); + handle_au_arg(&init->ets_alloc, &argv[i][3], argv, &i, 0); break; case 'F': - handle_au_arg(&init->fix_alloc, &argv[i][3], argv, &i); + handle_au_arg(&init->fix_alloc, &argv[i][3], argv, &i, 0); break; case 'H': - handle_au_arg(&init->eheap_alloc, &argv[i][3], argv, &i); + handle_au_arg(&init->eheap_alloc, &argv[i][3], argv, &i, 0); break; case 'L': - handle_au_arg(&init->ll_alloc, &argv[i][3], argv, &i); + handle_au_arg(&init->ll_alloc, &argv[i][3], argv, &i, 0); break; case 'M': if (has_prefix("amcbf", argv[i]+3)) { @@ -1333,18 +1459,42 @@ handle_args(int *argc, char **argv, erts_alc_hndl_args_init_t *init) #endif get_amount_value(argv[i]+6, argv, &i); } + else if (has_prefix("scs", argv[i]+3)) { +#if HAVE_ERTS_MSEG + init->mseg.mmap.scs = +#endif + get_mb_value(argv[i]+6, argv, &i); + } + else if (has_prefix("sco", argv[i]+3)) { +#if HAVE_ERTS_MSEG + init->mseg.mmap.sco = +#endif + get_bool_value(argv[i]+6, argv, &i); + } + else if (has_prefix("scrpm", argv[i]+3)) { +#if HAVE_ERTS_MSEG + init->mseg.mmap.scrpm = +#endif + get_bool_value(argv[i]+8, argv, &i); + } + else if (has_prefix("scrfsd", argv[i]+3)) { +#if HAVE_ERTS_MSEG + init->mseg.mmap.scrfsd = +#endif + get_amount_value(argv[i]+9, argv, &i); + } else { bad_param(param, param+2); } break; case 'R': - handle_au_arg(&init->driver_alloc, &argv[i][3], argv, &i); + handle_au_arg(&init->driver_alloc, &argv[i][3], argv, &i, 0); break; case 'S': - handle_au_arg(&init->sl_alloc, &argv[i][3], argv, &i); + handle_au_arg(&init->sl_alloc, &argv[i][3], argv, &i, 0); break; case 'T': - handle_au_arg(&init->temp_alloc, &argv[i][3], argv, &i); + handle_au_arg(&init->temp_alloc, &argv[i][3], argv, &i, 0); break; case 'Y': { /* sys_alloc */ if (has_prefix("tt", param+2)) { @@ -1430,8 +1580,8 @@ handle_args(int *argc, char **argv, erts_alc_hndl_args_init_t *init) for (a = 0; a < aui_sz; a++) { aui[a]->thr_spec = 0; + aui[a]->init.util.acul = 0; aui[a]->init.util.ramv = 0; - aui[a]->init.util.mmmbc = 10; aui[a]->init.util.lmbcs = 5*1024*1024; } } @@ -1471,6 +1621,19 @@ handle_args(int *argc, char **argv, erts_alc_hndl_args_init_t *init) bad_param(param, param+2); } break; + case 'l': + if (has_prefix("pm", param+2)) { + arg = get_value(argv[i]+5, argv, &i); + if (strcmp("all", arg) == 0) + lock_all_physical_memory = 1; + else if (strcmp("no", arg) == 0) + lock_all_physical_memory = 0; + else + bad_value(param, param+4, arg); + break; + } + bad_param(param, param+2); + break; case 'u': if (has_prefix("ycs", argv[i]+3)) { init->alloc_util.ycs @@ -1480,6 +1643,10 @@ handle_args(int *argc, char **argv, erts_alc_hndl_args_init_t *init) init->alloc_util.mmc = get_amount_value(argv[i]+6, argv, &i); } + else if (has_prefix("sac", argv[i]+3)) { + init->alloc_util.sac + = get_bool_value(argv[i]+6, argv, &i); + } else { int a; int start = i; @@ -1494,7 +1661,7 @@ handle_args(int *argc, char **argv, erts_alc_hndl_args_init_t *init) argv[start + 1] = val; i = start; } - handle_au_arg(aui[a], &argv[i][3], argv, &i); + handle_au_arg(aui[a], &argv[i][3], argv, &i, 1); } } break; @@ -1560,6 +1727,9 @@ erts_alloc_register_scheduler(void *vesdp) int ix = (int) esdp->no; int aix; +#ifdef ERTS_DIRTY_SCHEDULERS + ASSERT(!ERTS_SCHEDULER_IS_DIRTY(esdp)); +#endif for (aix = ERTS_ALC_A_MIN; aix <= ERTS_ALC_A_MAX; aix++) { ErtsAllocatorThrSpec_t *tspec = &erts_allctr_thr_spec[aix]; esdp->alloc_data.deallctr[aix] = NULL; @@ -1675,7 +1845,7 @@ erts_alc_fatal_error(int error, int func, ErtsAlcType_t n, ...) t_str = type_no_str(n); if (!t_str) { - sprintf(buf, "%d", (int) n); + erts_snprintf(buf, sizeof(buf), "%d", (int) n); t_str = buf; } @@ -2040,15 +2210,11 @@ erts_memory(int *print_to_p, void *print_to_arg, void *proc, Eterm earg) return am_badarg; } - /* All alloc_util allocators except sbmbc_alloc *have* to be enabled */ + /* All alloc_util allocators *have* to be enabled */ for (ai = ERTS_ALC_A_MIN; ai <= ERTS_ALC_A_MAX; ai++) { switch (ai) { case ERTS_ALC_A_SYSTEM: - case ERTS_ALC_A_SBMBC: -#if HALFWORD_HEAP - case ERTS_ALC_A_SBMBC_LOW: -#endif break; default: if (!erts_allctrs_info[ai].enabled @@ -2088,12 +2254,6 @@ erts_memory(int *print_to_p, void *print_to_arg, void *proc, Eterm earg) * Often not thread safe and usually never * contain any allocated memory. */ - case ERTS_ALC_A_SBMBC: - /* Included in other allocators */ -#if HALFWORD_HEAP - case ERTS_ALC_A_SBMBC_LOW: - /* Included in other allocators */ -#endif continue; case ERTS_ALC_A_EHEAP: save = &size.processes; @@ -2137,7 +2297,7 @@ erts_memory(int *print_to_p, void *print_to_arg, void *proc, Eterm earg) fi, ERTS_ALC_NO_FIXED_SIZES); tmp = alcu_size(ERTS_ALC_A_EHEAP, NULL, 0); } - tmp += erts_max_processes*sizeof(Process*); + tmp += erts_ptab_mem_size(&erts_proc); tmp += erts_bif_timer_memory_size(); tmp += erts_tot_link_lh_size(); @@ -2182,9 +2342,9 @@ erts_memory(int *print_to_p, void *print_to_arg, void *proc, Eterm earg) if (want.code) { size.code = module_table_sz(); size.code += export_table_sz(); - size.code += export_list_size() * sizeof(Export); + size.code += export_entries_sz(); size.code += erts_fun_table_sz(); - size.code += allocated_modules*sizeof(Range); + size.code += erts_ranges_sz(); size.code += erts_total_code_size; } @@ -2263,7 +2423,7 @@ struct aa_values { Eterm erts_allocated_areas(int *print_to_p, void *print_to_arg, void *proc) { -#define MAX_AA_VALUES (23) +#define MAX_AA_VALUES (24) struct aa_values values[MAX_AA_VALUES]; Eterm res = THE_NON_VALUE; int i, length; @@ -2298,13 +2458,9 @@ erts_allocated_areas(int *print_to_p, void *print_to_arg, void *proc) values[i].arity = 2; values[i].name = "static"; - values[i].ui[0] = - erts_max_ports*sizeof(Port) /* Port table */ - + erts_timer_wheel_memory_size() /* Timer wheel */ -#ifdef SYS_TMP_BUF_SIZE - + SYS_TMP_BUF_SIZE /* tmp_buf in sys on vxworks & ose */ -#endif - ; + values[i].ui[0] = + sizeof(ErtsPTab)*2 /* proc & port tables */ + + erts_timer_wheel_memory_size(); /* Timer wheel */ i++; erts_atom_get_text_space_sizes(&reserved_atom_space, &atom_space); @@ -2332,7 +2488,7 @@ erts_allocated_areas(int *print_to_p, void *print_to_arg, void *proc) values[i].arity = 2; values[i].name = "export_list"; - values[i].ui[0] = export_list_size() * sizeof(Export); + values[i].ui[0] = export_entries_sz(); i++; values[i].arity = 2; @@ -2347,7 +2503,7 @@ erts_allocated_areas(int *print_to_p, void *print_to_arg, void *proc) values[i].arity = 2; values[i].name = "module_refs"; - values[i].ui[0] = allocated_modules*sizeof(Range); + values[i].ui[0] = erts_ranges_sz(); i++; values[i].arity = 2; @@ -2382,7 +2538,12 @@ erts_allocated_areas(int *print_to_p, void *print_to_arg, void *proc) values[i].arity = 2; values[i].name = "process_table"; - values[i].ui[0] = erts_max_processes*sizeof(Process*); + values[i].ui[0] = erts_ptab_mem_size(&erts_proc); + i++; + + values[i].arity = 2; + values[i].name = "port_table"; + values[i].ui[0] = erts_ptab_mem_size(&erts_port); i++; values[i].arity = 2; @@ -2536,7 +2697,7 @@ erts_allocator_info(int to, void *arg) as = erts_allctr_thr_spec[a].allctr[ai]; } /* Binary alloc has its own thread safety... */ - erts_alcu_info(as, 0, &to, arg, NULL, NULL); + erts_alcu_info(as, 0, 0, &to, arg, NULL, NULL); } else { switch (a) { @@ -2562,6 +2723,7 @@ erts_allocator_info(int to, void *arg) #if HAVE_ERTS_MSEG { + struct erts_mmap_info_struct emis; #ifdef ERTS_SMP int max = (int) erts_no_schedulers; #else @@ -2572,6 +2734,8 @@ erts_allocator_info(int to, void *arg) erts_print(to, arg, "=allocator:mseg_alloc[%d]\n", i); erts_mseg_info(i, &to, arg, 0, NULL, NULL); } + erts_print(to, arg, "=allocator:mseg_alloc.erts_mmap\n"); + erts_mmap_info(&to, arg, NULL, NULL, &emis); } #endif @@ -2596,8 +2760,8 @@ erts_allocator_options(void *proc) #endif Uint sz, *szp, *hp, **hpp; Eterm res, features, settings; - Eterm atoms[ERTS_ALC_A_MAX-ERTS_ALC_A_MIN+5]; - Uint terms[ERTS_ALC_A_MAX-ERTS_ALC_A_MIN+5]; + Eterm atoms[ERTS_ALC_A_MAX-ERTS_ALC_A_MIN+7]; + Uint terms[ERTS_ALC_A_MAX-ERTS_ALC_A_MIN+7]; int a, length; SysAllocStat sas; Uint *endp = NULL; @@ -2695,6 +2859,11 @@ erts_allocator_options(void *proc) terms[length++] = erts_bld_2tup_list(hpp, szp, 3, o, v); } + atoms[length] = am_atom_put("lock_physical_memory", 20); + terms[length++] = (lock_all_physical_memory + ? am_atom_put("all", 3) + : am_atom_put("no", 2)); + settings = erts_bld_2tup_list(hpp, szp, length, atoms, terms); length = 0; @@ -2710,6 +2879,9 @@ erts_allocator_options(void *proc) if (use_mseg) terms[length++] = am_atom_put("mseg_alloc", 10); #endif +#if ERTS_HAVE_ERTS_SYS_ALIGNED_ALLOC + terms[length++] = am_atom_put("sys_aligned_alloc", 17); +#endif features = length ? erts_bld_list(hpp, szp, length, terms) : NIL; @@ -2795,9 +2967,11 @@ reply_alloc_info(void *vair) Uint sz, *szp; ErlOffHeap *ohp = NULL; ErlHeapFragment *bp = NULL; + struct erts_mmap_info_struct emis; int i; Eterm (*info_func)(Allctr_t *, int, + int, int *, void *, Uint **, @@ -2906,15 +3080,23 @@ reply_alloc_info(void *vair) ? NIL : erts_mseg_info(0, NULL, NULL, hpp != NULL, hpp, szp)); - ainfo = erts_bld_tuple(hpp, szp, 3, - alloc_atom, - make_small(0), - ainfo); + ainfo = erts_bld_tuple3(hpp, szp, + alloc_atom, + make_small(0), + ainfo); + + ai_list = erts_bld_cons(hpp, szp, + ainfo, ai_list); + ainfo = (air->only_sz ? NIL : erts_mmap_info(NULL, NULL, hpp, szp, &emis)); + ainfo = erts_bld_tuple3(hpp, szp, + alloc_atom, + erts_bld_atom(hpp,szp,"erts_mmap"), + ainfo); #else - ainfo = erts_bld_tuple(hpp, szp, 2, alloc_atom, - am_false); + ainfo = erts_bld_tuple2(hpp, szp, alloc_atom, + am_false); #endif - break; + break; default: alloc_atom = erts_bld_atom(hpp, szp, (char *) ERTS_ALC_A2AD(ai)); @@ -2926,8 +3108,8 @@ reply_alloc_info(void *vair) allctr = erts_allctr_thr_spec[ai].allctr[0]; else allctr = erts_allctrs_info[ai].extra; - ainfo = info_func(allctr, hpp != NULL, NULL, - NULL, hpp, szp); + ainfo = info_func(allctr, air->internal, hpp != NULL, + NULL, NULL, hpp, szp); ainfo = erts_bld_tuple(hpp, szp, 3, alloc_atom, make_small(0), ainfo); } @@ -2962,7 +3144,7 @@ reply_alloc_info(void *vair) alloc_atom = erts_bld_atom(hpp, szp, (char *) ERTS_ALC_A2AD(ai)); allctr = erts_allctr_thr_spec[ai].allctr[sched_id]; - ainfo = info_func(allctr, hpp != NULL, NULL, + ainfo = info_func(allctr, air->internal, hpp != NULL, NULL, NULL, hpp, szp); ai_list = erts_bld_cons(hpp, szp, erts_bld_tuple( @@ -3018,7 +3200,8 @@ int erts_request_alloc_info(struct process *c_p, Eterm ref, Eterm allocs, - int only_sz) + int only_sz, + int internal) { ErtsAllocInfoReq *air = aireq_alloc(); Eterm req_ai[ERTS_ALC_A_MAX+1+2] = {0}; @@ -3030,6 +3213,8 @@ erts_request_alloc_info(struct process *c_p, air->only_sz = only_sz; + air->internal = internal; + air->proc = c_p; if (is_not_internal_ref(ref)) @@ -3049,13 +3234,13 @@ erts_request_alloc_info(struct process *c_p, Eterm alloc = CAR(consp); for (ai = ERTS_ALC_A_MIN; ai <= ERTS_ALC_A_MAX; ai++) - if (erts_is_atom_str((char *) erts_alc_a2ad[ai], alloc)) + if (erts_is_atom_str(erts_alc_a2ad[ai], alloc, 0)) goto save_alloc; - if (erts_is_atom_str("mseg_alloc", alloc)) { + if (erts_is_atom_str("mseg_alloc", alloc, 0)) { ai = ERTS_ALC_INFO_A_MSEG_ALLOC; goto save_alloc; } - if (erts_is_atom_str("alloc_util", alloc)) { + if (erts_is_atom_str("alloc_util", alloc, 0)) { ai = ERTS_ALC_INFO_A_ALLOC_UTIL; save_alloc: if (req_ai[ai]) @@ -3094,6 +3279,55 @@ erts_request_alloc_info(struct process *c_p, return 1; } +/* + * The allocator wrapper prelocking stuff below is about the locking order. + * It only affects wrappers (erl_mtrace.c and erl_instrument.c) that keep locks + * during alloc/realloc/free. + * + * Some query functions in erl_alloc_util.c lock the allocator mutex and then + * use erts_printf that in turn may call the sys allocator through the wrappers. + * To avoid breaking locking order these query functions first "pre-locks" all + * allocator wrappers. + */ +ErtsAllocatorWrapper_t *erts_allctr_wrappers; +int erts_allctr_wrapper_prelocked = 0; +erts_tsd_key_t erts_allctr_prelock_tsd_key; + +void erts_allctr_wrapper_prelock_init(ErtsAllocatorWrapper_t* wrapper) +{ + ASSERT(wrapper->lock && wrapper->unlock); + wrapper->next = erts_allctr_wrappers; + erts_allctr_wrappers = wrapper; +} + +void erts_allctr_wrapper_pre_lock(void) +{ + if (erts_allctr_wrappers) { + ErtsAllocatorWrapper_t* wrapper = erts_allctr_wrappers; + for ( ; wrapper; wrapper = wrapper->next) { + wrapper->lock(); + } + ASSERT(!erts_allctr_wrapper_prelocked); + erts_allctr_wrapper_prelocked = 1; + erts_tsd_set(erts_allctr_prelock_tsd_key, (void*)1); + } +} + +void erts_allctr_wrapper_pre_unlock(void) +{ + if (erts_allctr_wrappers) { + ErtsAllocatorWrapper_t* wrapper = erts_allctr_wrappers; + + erts_allctr_wrapper_prelocked = 0; + erts_tsd_set(erts_allctr_prelock_tsd_key, (void*)0); + for ( ; wrapper; wrapper = wrapper->next) { + wrapper->unlock(); + } + } +} + + + /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\ * Deprecated functions * * * @@ -3123,10 +3357,7 @@ void *safe_realloc(void *ptr, Uint sz) \* */ #define ERTS_ALC_TEST_ABORT erl_exit(ERTS_ABORT_EXIT, "%s:%d: Internal error\n") -UWord erts_alc_test(UWord op, - UWord a1, - UWord a2, - UWord a3) +UWord erts_alc_test(UWord op, UWord a1, UWord a2, UWord a3) { switch (op >> 8) { case 0x0: return erts_alcu_test(op, a1, a2); @@ -3178,14 +3409,13 @@ UWord erts_alc_test(UWord op, init.atype = GOODFIT; init.init.util.name_prefix = (char *) a1; init.init.util.ts = a2 ? 1 : 0; - init.init.util.sbmbct = 0; if ((char **) a3) { char **argv = (char **) a3; int i = 0; while (argv[i]) { if (argv[i][0] == '-' && argv[i][1] == 't') - handle_au_arg(&init, &argv[i][2], argv, &i); + handle_au_arg(&init, &argv[i][2], argv, &i, 0); else return (UWord) NULL; i++; @@ -3305,6 +3535,11 @@ UWord erts_alc_test(UWord op, ERTS_ALC_TEST_ABORT; break; #endif /* #ifdef USE_THREADS */ +#ifdef ERTS_SMP + case 0xf13: return (UWord) 1; +#else + case 0xf13: return (UWord) 0; +#endif default: break; } @@ -3576,12 +3811,12 @@ check_memory_fence(void *ptr, Uint *size, ErtsAlcType_t n, int func) ftype = type_no_str(found_type); if (!ftype) { - sprintf(fbuf, "%d", (int) found_type); + erts_snprintf(fbuf, sizeof(fbuf), "%d", (int) found_type); ftype = fbuf; } otype = type_no_str(n); if (!otype) { - sprintf(obuf, "%d", (int) n); + erts_snprintf(obuf, sizeof(obuf), "%d", (int) n); otype = obuf; } diff --git a/erts/emulator/beam/erl_alloc.h b/erts/emulator/beam/erl_alloc.h index e475f9d8a2..d3109b9432 100644 --- a/erts/emulator/beam/erl_alloc.h +++ b/erts/emulator/beam/erl_alloc.h @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 2002-2012. All Rights Reserved. + * Copyright Ericsson AB 2002-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -54,6 +54,16 @@ void erts_sys_alloc_init(void); void *erts_sys_alloc(ErtsAlcType_t, void *, Uint); void *erts_sys_realloc(ErtsAlcType_t, void *, void *, Uint); void erts_sys_free(ErtsAlcType_t, void *, void *); +#if ERTS_HAVE_ERTS_SYS_ALIGNED_ALLOC +/* + * Note 'alignment' must remain the same in calls to + * 'erts_sys_aligned_realloc()' and 'erts_sys_aligned_free()' + * as in the initial call to 'erts_sys_aligned_alloc()'. + */ +void *erts_sys_aligned_alloc(UWord alignment, UWord size); +void *erts_sys_aligned_realloc(UWord alignment, void *ptr, UWord size, UWord old_size); +void erts_sys_aligned_free(UWord alignment, void *ptr); +#endif Eterm erts_memory(int *, void *, void *, Eterm); Eterm erts_allocated_areas(int *, void *, void *); @@ -65,7 +75,7 @@ Eterm erts_allocator_options(void *proc); struct process; int erts_request_alloc_info(struct process *c_p, Eterm ref, Eterm allocs, - int only_sz); + int only_sz, int internal); #define ERTS_ALLOC_INIT_DEF_OPTS_INITER {0} typedef struct { @@ -100,14 +110,6 @@ UWord erts_alc_test(UWord, #define ERTS_ALC_MIN_LONG_LIVED_TIME (10*60*1000) -#if HALFWORD_HEAP -#define ERTS_IS_SBMBC_ALLOCATOR_NO__(NO) \ - ((NO) == ERTS_ALC_A_SBMBC || (NO) == ERTS_ALC_A_SBMBC_LOW) -#else -#define ERTS_IS_SBMBC_ALLOCATOR_NO__(NO) \ - ((NO) == ERTS_ALC_A_SBMBC) -#endif - typedef struct { int alloc_util; int enabled; @@ -135,6 +137,18 @@ typedef struct { extern ErtsAllocatorThrSpec_t erts_allctr_thr_spec[ERTS_ALC_A_MAX+1]; +typedef struct ErtsAllocatorWrapper_t_ { + void (*lock)(void); + void (*unlock)(void); + struct ErtsAllocatorWrapper_t_* next; +}ErtsAllocatorWrapper_t; +ErtsAllocatorWrapper_t *erts_allctr_wrappers; +extern int erts_allctr_wrapper_prelocked; +extern erts_tsd_key_t erts_allctr_prelock_tsd_key; +void erts_allctr_wrapper_prelock_init(ErtsAllocatorWrapper_t* wrapper); +void erts_allctr_wrapper_pre_lock(void); +void erts_allctr_wrapper_pre_unlock(void); + void erts_alloc_register_scheduler(void *vesdp); #ifdef ERTS_SMP void erts_alloc_scheduler_handle_delayed_dealloc(void *vesdp, @@ -188,14 +202,15 @@ void *erts_realloc(ErtsAlcType_t type, void *ptr, Uint size); void erts_free(ErtsAlcType_t type, void *ptr); void *erts_alloc_fnf(ErtsAlcType_t type, Uint size); void *erts_realloc_fnf(ErtsAlcType_t type, void *ptr, Uint size); +int erts_is_allctr_wrapper_prelocked(void); #endif /* #if !ERTS_ALC_DO_INLINE */ void *erts_alloc_permanent_cache_aligned(ErtsAlcType_t type, Uint size); #ifndef ERTS_CACHE_LINE_SIZE -/* Assume a cache line size of 64 bytes */ -# define ERTS_CACHE_LINE_SIZE ((UWord) 64) +/* Assumed cache line size */ +# define ERTS_CACHE_LINE_SIZE ((UWord) ASSUMED_CACHE_LINE_SIZE) # define ERTS_CACHE_LINE_MASK (ERTS_CACHE_LINE_SIZE - 1) #endif @@ -258,6 +273,13 @@ void *erts_realloc_fnf(ErtsAlcType_t type, void *ptr, Uint size) size); } +ERTS_ALC_INLINE +int erts_is_allctr_wrapper_prelocked(void) +{ + return erts_allctr_wrapper_prelocked /* locked */ + && !!erts_tsd_get(erts_allctr_prelock_tsd_key); /* by me */ +} + #endif /* #if ERTS_ALC_DO_INLINE || defined(ERTS_ALC_INTERNAL__) */ #define ERTS_ALC_GET_THR_IX() ((int) erts_get_scheduler_id()) @@ -267,6 +289,8 @@ typedef void (*erts_alloc_verify_func_t)(Allctr_t *); erts_alloc_verify_func_t erts_alloc_get_verify_unused_temp_alloc(Allctr_t **allctr); +#define ERTS_ALC_DATA_ALIGN_SIZE(SZ) \ + (((((SZ) - 1) / 8) + 1) * 8) #define ERTS_ALC_CACHE_LINE_ALIGN_SIZE(SZ) \ (((((SZ) - 1) / ERTS_CACHE_LINE_SIZE) + 1) * ERTS_CACHE_LINE_SIZE) @@ -468,7 +492,7 @@ static TYPE * \ NAME##_alloc(void) \ { \ ErtsSchedulerData *esdp = erts_get_scheduler_data(); \ - if (!esdp) \ + if (!esdp || ERTS_SCHEDULER_IS_DIRTY(esdp)) \ return NULL; \ return (TYPE *) erts_sspa_alloc(sspa_data_##NAME##__, \ (int) esdp->no - 1); \ diff --git a/erts/emulator/beam/erl_alloc.types b/erts/emulator/beam/erl_alloc.types index 4aa8fa82fb..17ac6316b7 100644 --- a/erts/emulator/beam/erl_alloc.types +++ b/erts/emulator/beam/erl_alloc.types @@ -1,7 +1,7 @@ # # %CopyrightBegin% # -# Copyright Ericsson AB 2003-2012. All Rights Reserved. +# Copyright Ericsson AB 2003-2014. All Rights Reserved. # # The contents of this file are subject to the Erlang Public License, # Version 1.1, (the "License"); you may not use this file except in @@ -49,6 +49,8 @@ # true after a "+enable X" statement or if it has been passed as a # command line argument to make_alloc_types. The variable X is false # after a "+disable X" statement or if it has never been mentioned. +# +# IMPORTANT! Only use 7-bit ascii text in this file! +if smp +disable threads_no_smp @@ -74,11 +76,6 @@ allocator SYSTEM true sys_alloc -allocator SBMBC true sbmbc_alloc -+if halfword -allocator SBMBC_LOW true sbmbc_low_alloc -+endif - +if smp allocator TEMPORARY true temp_alloc @@ -144,8 +141,8 @@ class SYSTEM system_data # # <TYPE> <ALLOCATOR> <CLASS> <DESCRIPTION> -type SBMBC SBMBC SYSTEM small_block_mbc type PROC FIXED_SIZE PROCESSES proc +type PORT DRIVER SYSTEM port type ATOM LONG_LIVED ATOM atom_entry type MODULE LONG_LIVED CODE module_entry type REG_PROC STANDARD PROCESSES reg_proc @@ -153,6 +150,7 @@ type LINK_LH STANDARD PROCESSES link_lh type SUSPEND_MON STANDARD PROCESSES suspend_monitor type PEND_SUSPEND SHORT_LIVED PROCESSES pending_suspend type PROC_LIST SHORT_LIVED PROCESSES proc_list +type SAVED_ESTACK SHORT_LIVED PROCESSES saved_estack type FUN_ENTRY LONG_LIVED CODE fun_entry type ATOM_TXT LONG_LIVED ATOM atom_text type BEAM_REGISTER EHEAP PROCESSES beam_register @@ -164,6 +162,7 @@ type MSG_REF FIXED_SIZE PROCESSES msg_ref type MSG_ROOTS TEMPORARY PROCESSES msg_roots type ROOTSET TEMPORARY PROCESSES root_set type LOADER_TMP TEMPORARY CODE loader_tmp +type PREPARED_CODE SHORT_LIVED CODE prepared_code type BIF_TIMER_TABLE LONG_LIVED SYSTEM bif_timer_table type SL_BIF_TIMER SHORT_LIVED PROCESSES bif_timer_sl type LL_BIF_TIMER STANDARD PROCESSES bif_timer_ll @@ -188,7 +187,10 @@ type PORT_TABLE LONG_LIVED SYSTEM port_tab type TIMER_WHEEL LONG_LIVED SYSTEM timer_wheel type DRV DRIVER SYSTEM drv_internal type DRV_BINARY BINARY BINARIES drv_binary -type DRIVER STANDARD SYSTEM driver +type DRIVER DRIVER SYSTEM driver +type DRV_CMD_DATA DRIVER SYSTEM driver_command_data +type DRV_CTRL_DATA DRIVER SYSTEM driver_control_data +type DRV_CALL_DATA DRIVER SYSTEM driver_call_data type NIF DRIVER SYSTEM nif_internal type BINARY BINARY BINARIES binary type NBIF_TABLE SYSTEM SYSTEM nbif_tab @@ -196,14 +198,12 @@ type ARG_REG STANDARD PROCESSES arg_reg type PROC_DICT STANDARD PROCESSES proc_dict type CALLS_BUF STANDARD PROCESSES calls_buf type BPD STANDARD SYSTEM bpd -type PORT_NAME STANDARD SYSTEM port_name type LINEBUF STANDARD SYSTEM line_buf type IOQ STANDARD SYSTEM io_queue type BITS_BUF STANDARD SYSTEM bits_buf type TMP_DIST_BUF TEMPORARY SYSTEM tmp_dist_buf type ASYNC_DATA LONG_LIVED SYSTEM internal_async_data type ESTACK TEMPORARY SYSTEM estack -type PORT_CALL_BUF TEMPORARY SYSTEM port_call_buf type DB_TABLE ETS ETS db_tab type DB_FIXATION SHORT_LIVED ETS db_fixation type DB_FIX_DEL SHORT_LIVED ETS fixed_del @@ -233,14 +233,14 @@ type DDLL_HANDLE STANDARD SYSTEM ddll_handle type DDLL_ERRCODES LONG_LIVED SYSTEM ddll_errcodes type DDLL_TMP_BUF TEMPORARY SYSTEM ddll_tmp_buf type PORT_TASK SHORT_LIVED SYSTEM port_task -type PORT_TASKQ SHORT_LIVED SYSTEM port_task_queue +type PT_HNDL_LIST SHORT_LIVED SYSTEM port_task_handle_list type MISC_OP_LIST SHORT_LIVED SYSTEM misc_op_list type PORT_NAMES SHORT_LIVED SYSTEM port_names -type PORT_DATA_LOCK STANDARD SYSTEM port_data_lock +type PORT_DATA_LOCK DRIVER SYSTEM port_data_lock type NODES_MON STANDARD PROCESSES nodes_monitor -type PROCS_TPROC_EL SHORT_LIVED PROCESSES processes_term_proc_el -type PROCS_CNKINF SHORT_LIVED PROCESSES processes_chunk_info -type PROCS_PIDS SHORT_LIVED PROCESSES processes_pids +type PTAB_LIST_DEL SHORT_LIVED PROCESSES ptab_list_deleted_el +type PTAB_LIST_CNKI SHORT_LIVED PROCESSES ptab_list_chunk_info +type PTAB_LIST_PIDS SHORT_LIVED PROCESSES ptab_list_pids type RE_TMP_BUF TEMPORARY SYSTEM re_tmp_buf type RE_SUBJECT SHORT_LIVED SYSTEM re_subject type RE_HEAP STANDARD SYSTEM re_heap @@ -263,6 +263,13 @@ type ZLIB STANDARD SYSTEM zlib type CPU_GRPS_MAP LONG_LIVED SYSTEM cpu_groups_map type AUX_WORK_TMO LONG_LIVED SYSTEM aux_work_timeouts type MISC_AUX_WORK_Q LONG_LIVED SYSTEM misc_aux_work_q +type CODE_IX_LOCK_Q SHORT_LIVED SYSTEM code_ix_lock_q +type PROC_INTERVAL LONG_LIVED SYSTEM process_interval +type BUSY_CALLER_TAB SHORT_LIVED SYSTEM busy_caller_table +type BUSY_CALLER SHORT_LIVED SYSTEM busy_caller +type PORT_DATA_HEAP STANDARD SYSTEM port_data_heap +type PROC_SYS_TSK SHORT_LIVED PROCESSES proc_sys_task +type PROC_SYS_TSK_QS SHORT_LIVED PROCESSES proc_sys_task_queues +if threads_no_smp # Need thread safe allocs, but std_alloc and fix_alloc are not; @@ -321,6 +328,8 @@ type SL_PTIMER SHORT_LIVED SYSTEM ptimer_sl type LL_PTIMER STANDARD SYSTEM ptimer_ll type SYS_MSG_Q SHORT_LIVED PROCESSES system_messages_queue type FP_EXCEPTION LONG_LIVED SYSTEM fp_exception +type LL_MPATHS LONG_LIVED SYSTEM ll_migration_paths +type SL_MPATHS SHORT_LIVED SYSTEM sl_migration_paths +endif +if hipe @@ -339,7 +348,6 @@ type SSB SHORT_LIVED PROCESSES ssb +if halfword -type SBMBC_LOW SBMBC_LOW SYSTEM small_block_mbc_low type DDLL_PROCESS STANDARD_LOW SYSTEM ddll_processes type MONITOR_LH STANDARD_LOW PROCESSES monitor_lh type NLINK_LH STANDARD_LOW PROCESSES nlink_lh @@ -354,6 +362,7 @@ type MONITOR_SH STANDARD_LOW PROCESSES monitor_sh type NLINK_SH STANDARD_LOW PROCESSES nlink_sh type AINFO_REQ STANDARD_LOW SYSTEM alloc_info_request type SCHED_WTIME_REQ STANDARD_LOW SYSTEM sched_wall_time_request +type GC_INFO_REQ STANDARD_LOW SYSTEM gc_info_request +else # "fullword" @@ -371,6 +380,7 @@ type MONITOR_SH FIXED_SIZE PROCESSES monitor_sh type NLINK_SH FIXED_SIZE PROCESSES nlink_sh type AINFO_REQ SHORT_LIVED SYSTEM alloc_info_request type SCHED_WTIME_REQ SHORT_LIVED SYSTEM sched_wall_time_request +type GC_INFO_REQ SHORT_LIVED SYSTEM gc_info_request +endif @@ -390,6 +400,7 @@ type POLLSET_UPDREQ SHORT_LIVED SYSTEM pollset_update_req type POLL_FDS LONG_LIVED SYSTEM poll_fds type POLL_RES_EVS LONG_LIVED SYSTEM poll_result_events type FD_STATUS LONG_LIVED SYSTEM fd_status +type SELECT_FDS LONG_LIVED SYSTEM select_fds +if unix @@ -403,38 +414,29 @@ type PRT_REP_EXIT STANDARD SYSTEM port_report_exit +endif -+if win32 ++if ose -type DRV_DATA_BUF SYSTEM SYSTEM drv_data_buf -type PRELOADED LONG_LIVED SYSTEM preloaded +type SYS_READ_BUF TEMPORARY SYSTEM sys_read_buf +type FD_TAB LONG_LIVED SYSTEM fd_tab +type FD_ENTRY_BUF STANDARD SYSTEM fd_entry_buf +type FD_SIG_LIST SHORT_LIVED SYSTEM fd_sig_list +type DRV_EV STANDARD SYSTEM driver_event +type CS_PROG_PATH LONG_LIVED SYSTEM cs_prog_path +type ENVIRONMENT TEMPORARY SYSTEM environment type PUTENV_STR SYSTEM SYSTEM putenv_string -type WAITER_OBJ LONG_LIVED SYSTEM waiter_object -type ENVIRONMENT SYSTEM SYSTEM environment -type CON_VPRINTF_BUF TEMPORARY SYSTEM con_vprintf_buf +type PRT_REP_EXIT STANDARD SYSTEM port_report_exit +endif -+if vxworks - -type SYS_TMP_BUF LONG_LIVED SYSTEM sys_tmp_buf -type PEND_DATA SYSTEM SYSTEM pending_data -type FD_TAB LONG_LIVED SYSTEM fd_tab -type FD_ENTRY_BUF SYSTEM SYSTEM fd_entry_buf - -+endif -+if ose ++if win32 -type SYS_TMP_BUF LONG_LIVED SYSTEM sys_tmp_buf +type DRV_DATA_BUF SYSTEM SYSTEM drv_data_buf +type PRELOADED LONG_LIVED SYSTEM preloaded type PUTENV_STR SYSTEM SYSTEM putenv_string -type GETENV_STR SYSTEM SYSTEM getenv_string -type GETENV_STATE SYSTEM SYSTEM getenv_state -type SIG_ENTRY SYSTEM SYSTEM sig_entry -type DRIVER_DATA SYSTEM SYSTEM driver_data -type PGM_TAB SYSTEM SYSTEM pgm_tab -type PGM_ENTRY SYSTEM SYSTEM pgm_entry -type PRT_TAB SYSTEM SYSTEM prt_tab -type PRT_ENTRY SYSTEM SYSTEM prt_entry +type WAITER_OBJ LONG_LIVED SYSTEM waiter_object +type ENVIRONMENT SYSTEM SYSTEM environment +type CON_VPRINTF_BUF TEMPORARY SYSTEM con_vprintf_buf +endif diff --git a/erts/emulator/beam/erl_alloc_util.c b/erts/emulator/beam/erl_alloc_util.c index 97ba306a79..a4e164bf51 100644 --- a/erts/emulator/beam/erl_alloc_util.c +++ b/erts/emulator/beam/erl_alloc_util.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 2002-2012. All Rights Reserved. + * Copyright Ericsson AB 2002-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -71,29 +71,22 @@ #define ALLOC_ZERO_EQ_NULL 0 +#ifndef ERTS_MSEG_FLG_2POW +# define ERTS_MSEG_FLG_2POW 0 +#endif +#ifndef ERTS_MSEG_FLG_NONE +# define ERTS_MSEG_FLG_NONE 0 +#endif + static int atoms_initialized = 0; static int initialized = 0; -int erts_have_sbmbc_alloc; - -#if HAVE_ERTS_MSEG - -#define INV_MSEG_UNIT_MASK ((UWord) (mseg_unit_size - 1)) -#define MSEG_UNIT_MASK (~INV_MSEG_UNIT_MASK) -#define MSEG_UNIT_FLOOR(X) ((X) & MSEG_UNIT_MASK) -#define MSEG_UNIT_CEILING(X) MSEG_UNIT_FLOOR((X) + INV_MSEG_UNIT_MASK) - -#endif - #define INV_SYS_ALLOC_CARRIER_MASK ((UWord) (sys_alloc_carrier_size - 1)) #define SYS_ALLOC_CARRIER_MASK (~INV_SYS_ALLOC_CARRIER_MASK) #define SYS_ALLOC_CARRIER_FLOOR(X) ((X) & SYS_ALLOC_CARRIER_MASK) #define SYS_ALLOC_CARRIER_CEILING(X) \ SYS_ALLOC_CARRIER_FLOOR((X) + INV_SYS_ALLOC_CARRIER_MASK) -#undef ASSERT -#define ASSERT ASSERT_EXPR - #if 0 /* Can be useful for debugging */ #define MBC_REALLOC_ALWAYS_MOVES @@ -104,29 +97,59 @@ int erts_have_sbmbc_alloc; static Uint sys_alloc_carrier_size; #if HAVE_ERTS_MSEG static Uint max_mseg_carriers; -static Uint mseg_unit_size; #endif +static int allow_sys_alloc_carriers; #define ONE_GIGA (1000000000) -#define INC_CC(CC) ((CC).no == ONE_GIGA - 1 \ - ? ((CC).giga_no++, (CC).no = 0) \ - : (CC).no++) +#define ERTS_ALC_CC_GIGA_VAL(CC) ((CC) / ONE_GIGA) +#define ERTS_ALC_CC_VAL(CC) ((CC) % ONE_GIGA) + +#define INC_CC(CC) ((CC)++) + +#define DEC_CC(CC) ((CC)--) + +/* Multi block carrier (MBC) memory layout in R16: + +Empty MBC: +[Carrier_t|pad|Block_t L0T|fhdr| free... ] + +MBC after allocating first block: +[Carrier_t|pad|Block_t 000| udata |pad|Block_t L0T|fhdr| free... ] + +MBC after allocating second block: +[Carrier_t|pad|Block_t 000| udata |pad|Block_t 000| udata |pad|Block_t L0T|fhdr| free... ] + +MBC after deallocating first block: +[Carrier_t|pad|Block_t 00T|fhdr| free |FreeBlkFtr_t|Block_t 0P0| udata |pad|Block_t L0T|fhdr| free... ] + -#define DEC_CC(CC) ((CC).no == 0 \ - ? ((CC).giga_no--, (CC).no = ONE_GIGA - 1) \ - : (CC).no--) + udata = Allocated user data + pad = Padding to ensure correct alignment for user data + fhdr = Allocator specific header to keep track of free block + free = Unused free memory + T = This block is free (THIS_FREE_BLK_HDR_FLG) + P = Previous block is free (PREV_FREE_BLK_HDR_FLG) + L = Last block in carrier (LAST_BLK_HDR_FLG) +*/ + +/* Single block carrier (SBC): +[Carrier_t|pad|Block_t 111| udata... ] +*/ -/* ... */ /* Blocks ... */ -#define SBC_BLK_FTR_FLG (((UWord) 1) << 0) +#define UNUSED0_BLK_FTR_FLG (((UWord) 1) << 0) #define UNUSED1_BLK_FTR_FLG (((UWord) 1) << 1) #define UNUSED2_BLK_FTR_FLG (((UWord) 1) << 2) -#define ABLK_HDR_SZ (sizeof(Block_t)) -#define FBLK_FTR_SZ (sizeof(UWord)) +#if MBC_ABLK_OFFSET_BITS +# define ABLK_HDR_SZ (offsetof(Block_t,u)) +#else +# define ABLK_HDR_SZ (sizeof(Block_t)) +#endif +#define FBLK_FTR_SZ (sizeof(FreeBlkFtr_t)) #define UMEMSZ2BLKSZ(AP, SZ) \ (ABLK_HDR_SZ + (SZ) <= (AP)->min_block_size \ @@ -136,88 +159,238 @@ static Uint mseg_unit_size; #define UMEM2BLK(P) ((Block_t *) (((char *) (P)) - ABLK_HDR_SZ)) #define BLK2UMEM(P) ((void *) (((char *) (P)) + ABLK_HDR_SZ)) -#define PREV_BLK_SZ(B) \ - ((UWord) (*(((UWord *) (B)) - 1) & SZ_MASK)) +#define PREV_BLK_SZ(B) ((UWord) (((FreeBlkFtr_t *)(B))[-1])) #define SET_BLK_SZ_FTR(B, SZ) \ - (*((UWord *) (((char *) (B)) + (SZ) - sizeof(UWord))) = (SZ)) + (((FreeBlkFtr_t *) (((char *) (B)) + (SZ)))[-1] = (SZ)) -#define THIS_FREE_BLK_HDR_FLG (((UWord) 1) << 0) -#define PREV_FREE_BLK_HDR_FLG (((UWord) 1) << 1) -#define LAST_BLK_HDR_FLG (((UWord) 1) << 2) - -#define SET_BLK_SZ(B, SZ) \ +#define SET_MBC_ABLK_SZ(B, SZ) \ + (ASSERT(((SZ) & FLG_MASK) == 0), \ + (B)->bhdr = (((B)->bhdr) & ~MBC_ABLK_SZ_MASK) | (SZ)) +#define SET_MBC_FBLK_SZ(B, SZ) \ (ASSERT(((SZ) & FLG_MASK) == 0), \ - (*((Block_t *) (B)) = ((*((Block_t *) (B)) & FLG_MASK) | (SZ)))) -#define SET_BLK_FREE(B) \ - (*((Block_t *) (B)) |= THIS_FREE_BLK_HDR_FLG) -#define SET_BLK_ALLOCED(B) \ - (*((Block_t *) (B)) &= ~THIS_FREE_BLK_HDR_FLG) -#define SET_PREV_BLK_FREE(B) \ - (*((Block_t *) (B)) |= PREV_FREE_BLK_HDR_FLG) + (B)->bhdr = (((B)->bhdr) & ~MBC_FBLK_SZ_MASK) | (SZ)) +#define SET_SBC_BLK_SZ(B, SZ) \ + (ASSERT(((SZ) & FLG_MASK) == 0), \ + (B)->bhdr = (((B)->bhdr) & ~SBC_BLK_SZ_MASK) | (SZ)) +#define SET_PREV_BLK_FREE(AP,B) \ + (ASSERT(!IS_MBC_FIRST_BLK(AP,B)), \ + ASSERT(!IS_FREE_BLK(B)), \ + (B)->bhdr |= PREV_FREE_BLK_HDR_FLG) #define SET_PREV_BLK_ALLOCED(B) \ - (*((Block_t *) (B)) &= ~PREV_FREE_BLK_HDR_FLG) + ((B)->bhdr &= ~PREV_FREE_BLK_HDR_FLG) #define SET_LAST_BLK(B) \ - (*((Block_t *) (B)) |= LAST_BLK_HDR_FLG) + ((B)->bhdr |= LAST_BLK_HDR_FLG) #define SET_NOT_LAST_BLK(B) \ - (*((Block_t *) (B)) &= ~LAST_BLK_HDR_FLG) + ((B)->bhdr &= ~LAST_BLK_HDR_FLG) #define SBH_THIS_FREE THIS_FREE_BLK_HDR_FLG -#define SBH_THIS_ALLOCED ((UWord) 0) #define SBH_PREV_FREE PREV_FREE_BLK_HDR_FLG -#define SBH_PREV_ALLOCED ((UWord) 0) #define SBH_LAST_BLK LAST_BLK_HDR_FLG -#define SBH_NOT_LAST_BLK ((UWord) 0) -#define SET_BLK_HDR(B, Sz, F) \ - (ASSERT(((Sz) & FLG_MASK) == 0), *((Block_t *) (B)) = ((Sz) | (F))) + +#if MBC_ABLK_OFFSET_BITS + +# define MBC_SZ_MAX_LIMIT ((((UWord)1 << MBC_ABLK_OFFSET_BITS) - 1) << ERTS_SUPER_ALIGN_BITS) + +# define BLK_CARRIER_OFFSET(B, C) (((char*)(B) - (char*)(C)) >> ERTS_SACRR_UNIT_SHIFT) + +# define SET_MBC_ABLK_HDR(B, Sz, F, C) \ + (ASSERT(((Sz) & ~MBC_ABLK_SZ_MASK) == 0), \ + ASSERT(!((UWord)(F) & (~FLG_MASK|THIS_FREE_BLK_HDR_FLG))), \ + (B)->bhdr = ((Sz) | (F) | (BLK_CARRIER_OFFSET(B,C) << MBC_ABLK_OFFSET_SHIFT))) + +# define SET_MBC_FBLK_HDR(B, Sz, F, C) \ + (ASSERT(((Sz) & ~MBC_FBLK_SZ_MASK) == 0), \ + ASSERT(((UWord)(F) & (~FLG_MASK|THIS_FREE_BLK_HDR_FLG|PREV_FREE_BLK_HDR_FLG)) == THIS_FREE_BLK_HDR_FLG), \ + (B)->bhdr = ((Sz) | (F)), \ + (B)->u.carrier = (C)) + +# define IS_MBC_FIRST_ABLK(AP,B) \ + ((((UWord)(B) & ~ERTS_SACRR_UNIT_MASK) == MBC_HEADER_SIZE(AP)) \ + && ((B)->bhdr & MBC_ABLK_OFFSET_MASK) == 0) + +# define IS_MBC_FIRST_FBLK(AP,B) \ + ((char*)(B) == (char*)((B)->u.carrier) + MBC_HEADER_SIZE(AP)) + +# define IS_MBC_FIRST_BLK(AP,B) \ + (IS_FREE_BLK(B) ? IS_MBC_FIRST_FBLK(AP,B) : IS_MBC_FIRST_ABLK(AP,B)) + +# define SET_BLK_FREE(B) \ + (ASSERT(!IS_PREV_BLK_FREE(B)), \ + (B)->u.carrier = ABLK_TO_MBC(B), \ + (B)->bhdr |= THIS_FREE_BLK_HDR_FLG, \ + (B)->bhdr &= (MBC_ABLK_SZ_MASK|FLG_MASK)) + +# define SET_BLK_ALLOCED(B) \ + (ASSERT(((B)->bhdr & (MBC_ABLK_OFFSET_MASK|THIS_FREE_BLK_HDR_FLG)) == THIS_FREE_BLK_HDR_FLG), \ + (B)->bhdr &= ~THIS_FREE_BLK_HDR_FLG, \ + (B)->bhdr |= (BLK_CARRIER_OFFSET(B,(B)->u.carrier) << MBC_ABLK_OFFSET_SHIFT)) + +#else /* !MBC_ABLK_OFFSET_BITS */ + +# define MBC_SZ_MAX_LIMIT ((UWord)~0) + +# define SET_MBC_ABLK_HDR(B, Sz, F, C) \ + (ASSERT(((Sz) & FLG_MASK) == 0), \ + ASSERT(!((UWord)(F) & (~FLG_MASK|THIS_FREE_BLK_HDR_FLG))), \ + ASSERT((UWord)(F) < SBC_BLK_HDR_FLG), \ + (B)->bhdr = ((Sz) | (F)), \ + (B)->carrier = (C)) + +# define SET_MBC_FBLK_HDR(B, Sz, F, C) \ + (ASSERT(((Sz) & FLG_MASK) == 0), \ + ASSERT(((UWord)(F) & (~FLG_MASK|THIS_FREE_BLK_HDR_FLG|PREV_FREE_BLK_HDR_FLG)) == THIS_FREE_BLK_HDR_FLG), \ + (B)->bhdr = ((Sz) | (F)), \ + (B)->carrier = (C)) + +# define IS_MBC_FIRST_BLK(AP,B) \ + ((char*)(B) == (char*)((B)->carrier) + MBC_HEADER_SIZE(AP)) +# define IS_MBC_FIRST_ABLK(AP,B) IS_MBC_FIRST_BLK(AP,B) +# define IS_MBC_FIRST_FBLK(AP,B) IS_MBC_FIRST_BLK(AP,B) + +# define SET_BLK_FREE(B) \ + (ASSERT(!IS_PREV_BLK_FREE(B)), \ + (B)->bhdr |= THIS_FREE_BLK_HDR_FLG) + +# define SET_BLK_ALLOCED(B) \ + ((B)->bhdr &= ~THIS_FREE_BLK_HDR_FLG) + +#endif /* !MBC_ABLK_OFFSET_BITS */ + +#define SET_SBC_BLK_HDR(B, Sz) \ + (ASSERT(((Sz) & FLG_MASK) == 0), (B)->bhdr = ((Sz) | (SBC_BLK_HDR_FLG))) + #define BLK_UMEM_SZ(B) \ (BLK_SZ(B) - (ABLK_HDR_SZ)) #define IS_PREV_BLK_FREE(B) \ - (*((Block_t *) (B)) & PREV_FREE_BLK_HDR_FLG) + ((B)->bhdr & PREV_FREE_BLK_HDR_FLG) #define IS_PREV_BLK_ALLOCED(B) \ (!IS_PREV_BLK_FREE((B))) -#define IS_FREE_BLK(B) \ - (*((Block_t *) (B)) & THIS_FREE_BLK_HDR_FLG) #define IS_ALLOCED_BLK(B) \ (!IS_FREE_BLK((B))) #define IS_LAST_BLK(B) \ - (*((Block_t *) (B)) & LAST_BLK_HDR_FLG) + ((B)->bhdr & LAST_BLK_HDR_FLG) #define IS_NOT_LAST_BLK(B) \ (!IS_LAST_BLK((B))) #define GET_LAST_BLK_HDR_FLG(B) \ - (*((Block_t*) (B)) & LAST_BLK_HDR_FLG) + ((B)->bhdr & LAST_BLK_HDR_FLG) #define GET_THIS_FREE_BLK_HDR_FLG(B) \ - (*((Block_t*) (B)) & THIS_FREE_BLK_HDR_FLG) + ((B)->bhdr & THIS_FREE_BLK_HDR_FLG) #define GET_PREV_FREE_BLK_HDR_FLG(B) \ - (*((Block_t*) (B)) & PREV_FREE_BLK_HDR_FLG) + ((B)->bhdr & PREV_FREE_BLK_HDR_FLG) #define GET_BLK_HDR_FLGS(B) \ - (*((Block_t*) (B)) & FLG_MASK) - -#define IS_FIRST_BLK(B) \ - (IS_PREV_BLK_FREE((B)) && (PREV_BLK_SZ((B)) == 0)) -#define IS_NOT_FIRST_BLK(B) \ - (!IS_FIRST_BLK((B))) - -#define SET_SBC_BLK_FTR(FTR) \ - ((FTR) = (0 | SBC_BLK_FTR_FLG)) -#define SET_MBC_BLK_FTR(FTR) \ - ((FTR) = 0) - -#define IS_SBC_BLK(B) \ - (IS_PREV_BLK_FREE((B)) && (((UWord *) (B))[-1] & SBC_BLK_FTR_FLG)) -#define IS_MBC_BLK(B) \ - (!IS_SBC_BLK((B))) + ((B)->bhdr & FLG_MASK) #define NXT_BLK(B) \ - ((Block_t *) (((char *) (B)) + BLK_SZ((B)))) + (ASSERT(IS_MBC_BLK(B)), \ + (Block_t *) (((char *) (B)) + MBC_BLK_SZ((B)))) #define PREV_BLK(B) \ ((Block_t *) (((char *) (B)) - PREV_BLK_SZ((B)))) +#define BLK_AFTER(B,Sz) \ + ((Block_t *) (((char *) (B)) + (Sz))) + +#define BLK_SZ(B) ((B)->bhdr & (((B)->bhdr & THIS_FREE_BLK_HDR_FLG) ? MBC_FBLK_SZ_MASK : MBC_ABLK_SZ_MASK)) + /* Carriers ... */ +/* #define ERTS_ALC_CPOOL_DEBUG */ + +#if defined(DEBUG) && !defined(ERTS_ALC_CPOOL_DEBUG) +# define ERTS_ALC_CPOOL_DEBUG +#endif + +#ifndef ERTS_SMP +# undef ERTS_ALC_CPOOL_DEBUG +#endif + +#ifdef ERTS_ALC_CPOOL_DEBUG +# define ERTS_ALC_CPOOL_ASSERT(A) \ + ((void) ((A) \ + ? 1 \ + : (erts_alcu_assert_failed(#A, \ + (char *) __FILE__, \ + __LINE__, \ + (char *) __func__), \ + 0))) +#else +# define ERTS_ALC_CPOOL_ASSERT(A) ((void) 1) +#endif + +#ifdef ERTS_SMP +#define ERTS_ALC_IS_CPOOL_ENABLED(A) ((A)->cpool.util_limit) +#else +#define ERTS_ALC_IS_CPOOL_ENABLED(A) (0) +#endif + +#ifdef ERTS_SMP + +#define ERTS_ALC_CPOOL_MAX_DISABLE_ABANDON 1000 +#define ERTS_ALC_CPOOL_ALLOC_OP_INC 8 +#define ERTS_ALC_CPOOL_FREE_OP_DEC 10 + +#define ERTS_ALC_CPOOL_ALLOC_OP(A) \ +do { \ + if ((A)->cpool.disable_abandon < ERTS_ALC_CPOOL_MAX_DISABLE_ABANDON) { \ + (A)->cpool.disable_abandon += ERTS_ALC_CPOOL_ALLOC_OP_INC; \ + if ((A)->cpool.disable_abandon > ERTS_ALC_CPOOL_MAX_DISABLE_ABANDON) \ + (A)->cpool.disable_abandon = ERTS_ALC_CPOOL_MAX_DISABLE_ABANDON; \ + } \ +} while (0) + + +#if ERTS_ALC_CPOOL_ALLOC_OP_INC >= ERTS_ALC_CPOOL_FREE_OP_DEC +# error "Implementation assume ERTS_ALC_CPOOL_ALLOC_OP_INC < ERTS_ALC_CPOOL_FREE_OP_DEC" +#endif + +#define ERTS_ALC_CPOOL_REALLOC_OP(A) \ +do { \ + if ((A)->cpool.disable_abandon) { \ + (A)->cpool.disable_abandon -= (ERTS_ALC_CPOOL_FREE_OP_DEC \ + - ERTS_ALC_CPOOL_ALLOC_OP_INC); \ + if ((A)->cpool.disable_abandon < 0) \ + (A)->cpool.disable_abandon = 0; \ + } \ +} while (0) + +#define ERTS_ALC_CPOOL_FREE_OP(A) \ +do { \ + if ((A)->cpool.disable_abandon) { \ + (A)->cpool.disable_abandon -= ERTS_ALC_CPOOL_FREE_OP_DEC; \ + if ((A)->cpool.disable_abandon < 0) \ + (A)->cpool.disable_abandon = 0; \ + } \ +} while (0) + +#else +#define ERTS_ALC_CPOOL_ALLOC_OP(A) +#define ERTS_ALC_CPOOL_REALLOC_OP(A) +#define ERTS_ALC_CPOOL_FREE_OP(A) +#endif + +#define ERTS_CRR_ALCTR_FLG_IN_POOL (((erts_aint_t) 1) << 0) +#define ERTS_CRR_ALCTR_FLG_BUSY (((erts_aint_t) 1) << 1) +#define ERTS_CRR_ALCTR_FLG_MASK (ERTS_CRR_ALCTR_FLG_IN_POOL | \ + ERTS_CRR_ALCTR_FLG_BUSY) + +#ifdef ERTS_SMP +#define SBC_HEADER_SIZE \ + (UNIT_CEILING(sizeof(Carrier_t) \ + - sizeof(ErtsAlcCPoolData_t) \ + + ABLK_HDR_SZ) \ + - ABLK_HDR_SZ) +#else +#define SBC_HEADER_SIZE \ + (UNIT_CEILING(sizeof(Carrier_t) \ + + ABLK_HDR_SZ) \ + - ABLK_HDR_SZ) +#endif +#define MBC_HEADER_SIZE(AP) ((AP)->mbc_header_size) + + #define MSEG_CARRIER_HDR_FLAG (((UWord) 1) << 0) #define SBC_CARRIER_HDR_FLAG (((UWord) 1) << 1) @@ -226,20 +399,21 @@ static Uint mseg_unit_size; #define SCH_MBC 0 #define SCH_SBC SBC_CARRIER_HDR_FLAG -#define SET_CARRIER_HDR(C, Sz, F) \ - (ASSERT(((Sz) & FLG_MASK) == 0), (C)->chdr = ((Sz) | (F))) +#define SET_CARRIER_HDR(C, Sz, F, AP) \ + (ASSERT(((Sz) & FLG_MASK) == 0), (C)->chdr = ((Sz) | (F)), \ + erts_smp_atomic_init_nob(&(C)->allctr, (erts_aint_t) (AP))) -#define BLK2SBC(AP, B) \ - ((Carrier_t *) (((char *) (B)) - (AP)->sbc_header_size)) -#define FBLK2MBC(AP, B) \ - ((Carrier_t *) (((char *) (B)) - (AP)->mbc_header_size)) +#define BLK_TO_SBC(B) \ + ((Carrier_t *) (((char *) (B)) - SBC_HEADER_SIZE)) +#define FIRST_BLK_TO_MBC(AP, B) \ + ((Carrier_t *) (((char *) (B)) - MBC_HEADER_SIZE(AP))) -#define MBC2FBLK(AP, P) \ - ((Block_t *) (((char *) (P)) + (AP)->mbc_header_size)) +#define MBC_TO_FIRST_BLK(AP, P) \ + ((Block_t *) (((char *) (P)) + MBC_HEADER_SIZE(AP))) #define SBC2BLK(AP, P) \ - ((Block_t *) (((char *) (P)) + (AP)->sbc_header_size)) + ((Block_t *) (((char *) (P)) + SBC_HEADER_SIZE)) #define SBC2UMEM(AP, P) \ - ((void *) (((char *) (P)) + ((AP)->sbc_header_size + ABLK_HDR_SZ))) + ((void *) (((char *) (P)) + (SBC_HEADER_SIZE + ABLK_HDR_SZ))) #define IS_MSEG_CARRIER(C) \ ((C)->chdr & MSEG_CARRIER_HDR_FLAG) @@ -250,15 +424,6 @@ static Uint mseg_unit_size; #define IS_MB_CARRIER(C) \ (!IS_SB_CARRIER((C))) -#define SET_MSEG_CARRIER(C) \ - ((C)->chdr |= MSEG_CARRIER_HDR_FLAG) -#define SET_SYS_ALLOC_CARRIER(C) \ - ((C)->chdr &= ~MSEG_CARRIER_HDR_FLAG) -#define SET_SB_CARRIER(C) \ - ((C)->chdr |= SBC_CARRIER_HDR_FLAG) -#define SET_MB_CARRIER(C) \ - ((C)->chdr &= ~SBC_CARRIER_HDR_FLAG) - #define SET_CARRIER_SZ(C, SZ) \ (ASSERT(((SZ) & FLG_MASK) == 0), \ ((C)->chdr = ((C)->chdr & FLG_MASK) | (SZ))) @@ -269,6 +434,7 @@ static Uint mseg_unit_size; #define CFLG_FORCE_SYS_ALLOC (1 << 3) #define CFLG_FORCE_SIZE (1 << 4) #define CFLG_MAIN_CARRIER (1 << 5) +#define CFLG_NO_CPOOL (1 << 6) #ifdef ERTS_ALLOC_UTIL_HARD_DEBUG static void check_blk_carrier(Allctr_t *, Block_t *); @@ -296,11 +462,7 @@ static void check_blk_carrier(Allctr_t *, Block_t *); ASSERT(((AP)->mbcs.curr.norm.sys_alloc.no \ && (AP)->mbcs.curr.norm.sys_alloc.size) \ || (!(AP)->mbcs.curr.norm.sys_alloc.no \ - && !(AP)->mbcs.curr.norm.sys_alloc.size)); \ - ASSERT(((AP)->sbmbcs.curr.small_block.no \ - && (AP)->sbmbcs.curr.small_block.size) \ - || (!(AP)->sbmbcs.curr.small_block.no \ - && !(AP)->sbmbcs.curr.small_block.size)) + && !(AP)->mbcs.curr.norm.sys_alloc.size)); #else #define DEBUG_CHECK_CARRIER_NO_SZ(AP) @@ -371,17 +533,6 @@ do { \ + (AP)->mbcs.curr.norm.sys_alloc.size) -#define STAT_SBMBC_ALLOC(AP, CSZ) \ -do { \ - (AP)->sbmbcs.curr.small_block.no++; \ - (AP)->sbmbcs.curr.small_block.size += (CSZ); \ - if ((AP)->sbmbcs.max.no < (AP)->sbmbcs.curr.small_block.no) \ - (AP)->sbmbcs.max.no = (AP)->sbmbcs.curr.small_block.no; \ - if ((AP)->sbmbcs.max.size < (AP)->sbmbcs.curr.small_block.size) \ - (AP)->sbmbcs.max.size = (AP)->sbmbcs.curr.small_block.size; \ - DEBUG_CHECK_CARRIER_NO_SZ((AP)); \ -} while (0) - #define STAT_MSEG_MBC_ALLOC(AP, CSZ) \ do { \ (AP)->mbcs.curr.norm.mseg.no++; \ @@ -398,13 +549,19 @@ do { \ DEBUG_CHECK_CARRIER_NO_SZ((AP)); \ } while (0) -#define STAT_SBMBC_FREE(AP, CSZ) \ +#define STAT_MBC_CPOOL_FETCH(AP, CRR) \ do { \ - ASSERT((AP)->sbmbcs.curr.small_block.no > 0); \ - (AP)->sbmbcs.curr.small_block.no--; \ - ASSERT((AP)->sbmbcs.curr.small_block.size >= (CSZ)); \ - (AP)->sbmbcs.curr.small_block.size -= (CSZ); \ - DEBUG_CHECK_CARRIER_NO_SZ((AP)); \ + UWord csz__ = CARRIER_SZ((CRR)); \ + if (IS_MSEG_CARRIER((CRR))) \ + STAT_MSEG_MBC_ALLOC((AP), csz__); \ + else \ + STAT_SYS_ALLOC_MBC_ALLOC((AP), csz__); \ + (AP)->mbcs.blocks.curr.no += (CRR)->cpool.blocks; \ + if ((AP)->mbcs.blocks.max.no < (AP)->mbcs.blocks.curr.no) \ + (AP)->mbcs.blocks.max.no = (AP)->mbcs.blocks.curr.no; \ + (AP)->mbcs.blocks.curr.size += (CRR)->cpool.blocks_size; \ + if ((AP)->mbcs.blocks.max.size < (AP)->mbcs.blocks.curr.size) \ + (AP)->mbcs.blocks.max.size = (AP)->mbcs.blocks.curr.size; \ } while (0) #define STAT_MSEG_MBC_FREE(AP, CSZ) \ @@ -425,28 +582,88 @@ do { \ DEBUG_CHECK_CARRIER_NO_SZ((AP)); \ } while (0) -#define STAT_MBC_BLK_ALLOC(AP, BSZ, FLGS) \ +#define STAT_MBC_CPOOL_INSERT(AP, CRR) \ do { \ - CarriersStats_t *cstats__ = (((FLGS) & ERTS_ALCU_FLG_SBMBC) \ - ? &(AP)->sbmbcs \ - : &(AP)->mbcs); \ + UWord csz__ = CARRIER_SZ((CRR)); \ + if (IS_MSEG_CARRIER((CRR))) \ + STAT_MSEG_MBC_FREE((AP), csz__); \ + else \ + STAT_SYS_ALLOC_MBC_FREE((AP), csz__); \ + ERTS_ALC_CPOOL_ASSERT((AP)->mbcs.blocks.curr.no \ + >= (CRR)->cpool.blocks); \ + (AP)->mbcs.blocks.curr.no -= (CRR)->cpool.blocks; \ + ERTS_ALC_CPOOL_ASSERT((AP)->mbcs.blocks.curr.size \ + >= (CRR)->cpool.blocks_size); \ + (AP)->mbcs.blocks.curr.size -= (CRR)->cpool.blocks_size; \ +} while (0) + +#ifdef ERTS_SMP +#define STAT_MBC_BLK_ALLOC_CRR(CRR, BSZ) \ +do { \ + (CRR)->cpool.blocks++; \ + (CRR)->cpool.blocks_size += (BSZ); \ +} while (0) +#else +#define STAT_MBC_BLK_ALLOC_CRR(CRR, BSZ) ((void) (CRR)) /* Get rid of warning */ +#endif + +#define STAT_MBC_BLK_ALLOC(AP, CRR, BSZ, FLGS) \ +do { \ + CarriersStats_t *cstats__ = &(AP)->mbcs; \ cstats__->blocks.curr.no++; \ if (cstats__->blocks.max.no < cstats__->blocks.curr.no) \ cstats__->blocks.max.no = cstats__->blocks.curr.no; \ cstats__->blocks.curr.size += (BSZ); \ if (cstats__->blocks.max.size < cstats__->blocks.curr.size) \ cstats__->blocks.max.size = cstats__->blocks.curr.size; \ + STAT_MBC_BLK_ALLOC_CRR((CRR), (BSZ)); \ } while (0) -#define STAT_MBC_BLK_FREE(AP, BSZ, FLGS) \ +static ERTS_INLINE int +stat_cpool_mbc_blk_free(Allctr_t *allctr, + Carrier_t *crr, + Carrier_t **busy_pcrr_pp, + UWord blksz) +{ +#ifdef ERTS_SMP + + ERTS_ALC_CPOOL_ASSERT(crr->cpool.blocks > 0); + crr->cpool.blocks--; + ERTS_ALC_CPOOL_ASSERT(crr->cpool.blocks_size >= blksz); + crr->cpool.blocks_size -= blksz; + + if (!busy_pcrr_pp || !*busy_pcrr_pp) + return 0; + + ERTS_ALC_CPOOL_ASSERT(crr == *busy_pcrr_pp); + +#ifdef ERTS_ALC_CPOOL_DEBUG + ERTS_ALC_CPOOL_ASSERT( + erts_atomic_dec_read_nob(&allctr->cpool.stat.no_blocks) >= 0); + ERTS_ALC_CPOOL_ASSERT( + erts_atomic_add_read_nob(&allctr->cpool.stat.blocks_size, + -((erts_aint_t) blksz)) >= 0); +#else + erts_atomic_dec_nob(&allctr->cpool.stat.no_blocks); + erts_atomic_add_nob(&allctr->cpool.stat.blocks_size, + -((erts_aint_t) blksz)); +#endif + + return 1; +#else + return 0; +#endif +} + +#define STAT_MBC_BLK_FREE(AP, CRR, BPCRRPP, BSZ, FLGS) \ do { \ - CarriersStats_t *cstats__ = (((FLGS) & ERTS_ALCU_FLG_SBMBC) \ - ? &(AP)->sbmbcs \ - : &(AP)->mbcs); \ - ASSERT(cstats__->blocks.curr.no > 0); \ - cstats__->blocks.curr.no--; \ - ASSERT(cstats__->blocks.curr.size >= (BSZ)); \ - cstats__->blocks.curr.size -= (BSZ); \ + if (!stat_cpool_mbc_blk_free((AP), (CRR), (BPCRRPP), (BSZ))) { \ + CarriersStats_t *cstats__ = &(AP)->mbcs; \ + ASSERT(cstats__->blocks.curr.no > 0); \ + cstats__->blocks.curr.no--; \ + ASSERT(cstats__->blocks.curr.size >= (BSZ)); \ + cstats__->blocks.curr.size -= (BSZ); \ + } \ } while (0) /* Debug stuff... */ @@ -472,17 +689,21 @@ do { \ #ifdef DEBUG #ifdef USE_THREADS +# ifdef ERTS_SMP +# define IS_ACTUALLY_BLOCKING (erts_thr_progress_is_blocking()) +# else +# define IS_ACTUALLY_BLOCKING 0 +# endif #define ERTS_ALCU_DBG_CHK_THR_ACCESS(A) \ do { \ - if (!(A)->thread_safe) { \ - if (!(A)->debug.saved_tid) { \ + if (!(A)->thread_safe && !IS_ACTUALLY_BLOCKING) { \ + if (!(A)->debug.saved_tid) { \ (A)->debug.tid = erts_thr_self(); \ (A)->debug.saved_tid = 1; \ } \ else { \ ERTS_SMP_LC_ASSERT( \ - ethr_equal_tids((A)->debug.tid, erts_thr_self()) \ - || erts_thr_progress_is_blocking()); \ + ethr_equal_tids((A)->debug.tid, erts_thr_self())); \ } \ } \ } while (0) @@ -493,24 +714,54 @@ do { \ #define ERTS_ALCU_DBG_CHK_THR_ACCESS(A) #endif - static void make_name_atoms(Allctr_t *allctr); static Block_t *create_carrier(Allctr_t *, Uint, UWord); -static void destroy_carrier(Allctr_t *, Block_t *); -static void mbc_free(Allctr_t *allctr, void *p); +static void destroy_carrier(Allctr_t *, Block_t *, Carrier_t **); +static void mbc_free(Allctr_t *allctr, void *p, Carrier_t **busy_pcrr_pp); +static void dealloc_block(Allctr_t *, void *, int); + +/* internal data... */ + +#if 0 + +static ERTS_INLINE void * +internal_alloc(UWord size) +{ + void *res = erts_sys_alloc(0, NULL, size); + if (!res) + erts_alloc_enomem(ERTS_ALC_T_UNDEF, size); + return res; +} +static ERTS_INLINE void * +internal_realloc(void *ptr, UWord size) +{ + void *res = erts_sys_realloc(0, NULL, ptr, size); + if (!res) + erts_alloc_enomem(ERTS_ALC_T_UNDEF, size); + return res; +} + +static ERTS_INLINE void +internal_free(void *ptr) +{ + erts_sys_free(0, NULL, ptr); +} + +#endif /* mseg ... */ #if HAVE_ERTS_MSEG static ERTS_INLINE void * -alcu_mseg_alloc(Allctr_t *allctr, Uint *size_p) +alcu_mseg_alloc(Allctr_t *allctr, Uint *size_p, Uint flags) { void *res; - - res = erts_mseg_alloc_opt(allctr->alloc_no, size_p, &allctr->mseg_opt); + UWord size = (UWord) *size_p; + res = erts_mseg_alloc_opt(allctr->alloc_no, &size, flags, &allctr->mseg_opt); + *size_p = (Uint) size; INC_CC(allctr->calls.mseg_alloc); return res; } @@ -519,28 +770,33 @@ static ERTS_INLINE void * alcu_mseg_realloc(Allctr_t *allctr, void *seg, Uint old_size, Uint *new_size_p) { void *res; - - res = erts_mseg_realloc_opt(allctr->alloc_no, seg, old_size, new_size_p, - &allctr->mseg_opt); + UWord new_size = (UWord) *new_size_p; + res = erts_mseg_realloc_opt(allctr->alloc_no, seg, (UWord) old_size, &new_size, + ERTS_MSEG_FLG_NONE, &allctr->mseg_opt); + *new_size_p = (Uint) new_size; INC_CC(allctr->calls.mseg_realloc); return res; } static ERTS_INLINE void -alcu_mseg_dealloc(Allctr_t *allctr, void *seg, Uint size) +alcu_mseg_dealloc(Allctr_t *allctr, void *seg, Uint size, Uint flags) { - erts_mseg_dealloc_opt(allctr->alloc_no, seg, size, &allctr->mseg_opt); + erts_mseg_dealloc_opt(allctr->alloc_no, seg, (UWord) size, flags, &allctr->mseg_opt); INC_CC(allctr->calls.mseg_dealloc); } #endif static ERTS_INLINE void * -alcu_sys_alloc(Allctr_t *allctr, Uint size) +alcu_sys_alloc(Allctr_t *allctr, Uint size, int superalign) { void *res; - - res = erts_sys_alloc(0, NULL, size); +#if ERTS_SA_MB_CARRIERS && ERTS_HAVE_ERTS_SYS_ALIGNED_ALLOC + if (superalign) + res = erts_sys_aligned_alloc(ERTS_SACRR_UNIT_SZ, size); + else +#endif + res = erts_sys_alloc(0, NULL, size); INC_CC(allctr->calls.sys_alloc); if (erts_mtrace_enabled) erts_mtrace_crr_alloc(res, allctr->alloc_no, ERTS_ALC_A_SYSTEM, size); @@ -548,11 +804,16 @@ alcu_sys_alloc(Allctr_t *allctr, Uint size) } static ERTS_INLINE void * -alcu_sys_realloc(Allctr_t *allctr, void *ptr, Uint size) +alcu_sys_realloc(Allctr_t *allctr, void *ptr, Uint size, Uint old_size, int superalign) { void *res; - res = erts_sys_realloc(0, NULL, ptr, size); +#if ERTS_SA_MB_CARRIERS && ERTS_HAVE_ERTS_SYS_ALIGNED_ALLOC + if (superalign) + res = erts_sys_aligned_realloc(ERTS_SACRR_UNIT_SZ, ptr, size, old_size); + else +#endif + res = erts_sys_realloc(0, NULL, ptr, size); INC_CC(allctr->calls.sys_realloc); if (erts_mtrace_enabled) erts_mtrace_crr_realloc(res, @@ -564,9 +825,14 @@ alcu_sys_realloc(Allctr_t *allctr, void *ptr, Uint size) } static ERTS_INLINE void -alcu_sys_free(Allctr_t *allctr, void *ptr) +alcu_sys_free(Allctr_t *allctr, void *ptr, int superalign) { - erts_sys_free(0, NULL, ptr); +#if ERTS_SA_MB_CARRIERS && ERTS_HAVE_ERTS_SYS_ALIGNED_ALLOC + if (superalign) + erts_sys_aligned_free(ERTS_SACRR_UNIT_SZ, ptr); + else +#endif + erts_sys_free(0, NULL, ptr); INC_CC(allctr->calls.sys_free); if (erts_mtrace_enabled) erts_mtrace_crr_free(allctr->alloc_no, ERTS_ALC_A_SYSTEM, ptr); @@ -661,10 +927,35 @@ unlink_carrier(CarrierList_t *cl, Carrier_t *crr) } } -static Block_t *create_sbmbc(Allctr_t *allctr, Uint umem_sz); -static void destroy_sbmbc(Allctr_t *allctr, Block_t *blk); -static Block_t *create_carrier(Allctr_t *, Uint, UWord); -static void destroy_carrier(Allctr_t *, Block_t *); +#ifdef ERTS_SMP + +static ERTS_INLINE void +clear_busy_pool_carrier(Allctr_t *allctr, Carrier_t *crr) +{ + if (crr) { + erts_aint_t max_size; + erts_aint_t new_val; + + max_size = (erts_aint_t) allctr->largest_fblk_in_mbc(allctr, crr); + erts_atomic_set_nob(&crr->cpool.max_size, max_size); + + new_val = (((erts_aint_t) allctr)|ERTS_CRR_ALCTR_FLG_IN_POOL); + +#ifdef ERTS_ALC_CPOOL_DEBUG + { + erts_aint_t old_val = new_val|ERTS_CRR_ALCTR_FLG_BUSY; + + ERTS_ALC_CPOOL_ASSERT(old_val + == erts_smp_atomic_xchg_relb(&crr->allctr, + new_val)); + } +#else + erts_smp_atomic_set_relb(&crr->allctr, new_val); +#endif + } +} + +#endif #if 0 #define ERTS_DBG_CHK_FIX_LIST(A, FIX, IX, B) \ @@ -686,13 +977,154 @@ chk_fix_list(Allctr_t *allctr, ErtsAlcFixList_t *fix, int ix, int before) #define ERTS_DBG_CHK_FIX_LIST(A, FIX, IX, B) #endif -erts_aint32_t -erts_alcu_fix_alloc_shrink(Allctr_t *allctr, erts_aint32_t flgs) +static void *mbc_alloc(Allctr_t *allctr, Uint size); + +#ifdef ERTS_SMP +typedef struct { + ErtsAllctrDDBlock_t ddblock__; /* must be first */ + ErtsAlcType_t fix_type; +} ErtsAllctrFixDDBlock_t; +#endif + +static ERTS_INLINE void +dealloc_fix_block(Allctr_t *allctr, + ErtsAlcType_t type, + void *ptr, + int dec_cc_on_redirect) +{ +#ifdef ERTS_SMP + /* May be redirected... */ + ((ErtsAllctrFixDDBlock_t *) ptr)->fix_type = type; +#endif + dealloc_block(allctr, ptr, dec_cc_on_redirect); +} + +static ERTS_INLINE void +sched_fix_shrink(Allctr_t *allctr, int on) +{ + if (on && !allctr->fix_shrink_scheduled) { + allctr->fix_shrink_scheduled = 1; + erts_set_aux_work_timeout(allctr->ix, + (ERTS_SSI_AUX_WORK_FIX_ALLOC_LOWER_LIM + | ERTS_SSI_AUX_WORK_FIX_ALLOC_DEALLOC), + 1); + } + else if (!on && allctr->fix_shrink_scheduled) { + allctr->fix_shrink_scheduled = 0; + erts_set_aux_work_timeout(allctr->ix, + (ERTS_SSI_AUX_WORK_FIX_ALLOC_LOWER_LIM + | ERTS_SSI_AUX_WORK_FIX_ALLOC_DEALLOC), + 0); + } +} + +static ERTS_INLINE void +fix_cpool_check_shrink(Allctr_t *allctr, + ErtsAlcType_t type, + ErtsAlcFixList_t *fix, + Carrier_t **busy_pcrr_pp) +{ + if (fix->u.cpool.shrink_list > 0) { + if (fix->list_size == 0) + fix->u.cpool.shrink_list = 0; + else { + void *p; +#ifdef ERTS_SMP + if (busy_pcrr_pp) { + clear_busy_pool_carrier(allctr, *busy_pcrr_pp); + *busy_pcrr_pp = NULL; + } +#endif + fix->u.cpool.shrink_list--; + p = fix->list; + fix->list = *((void **) p); + fix->list_size--; + if (fix->u.cpool.min_list_size > fix->list_size) + fix->u.cpool.min_list_size = fix->list_size; + + fix->u.cpool.allocated--; + dealloc_fix_block(allctr, type, p, 0); + } + } +} + +static ERTS_INLINE void * +fix_cpool_alloc(Allctr_t *allctr, ErtsAlcType_t type, Uint size) +{ + void *res; + ErtsAlcFixList_t *fix; + + ASSERT(ERTS_ALC_N_MIN_A_FIXED_SIZE <= type + && type <= ERTS_ALC_N_MAX_A_FIXED_SIZE); + + fix = &allctr->fix[type - ERTS_ALC_N_MIN_A_FIXED_SIZE]; + + res = fix->list; + if (res) { + fix->list = *((void **) res); + fix->list_size--; + if (fix->u.cpool.min_list_size > fix->list_size) + fix->u.cpool.min_list_size = fix->list_size; + fix->u.cpool.used++; + fix_cpool_check_shrink(allctr, type, fix, NULL); + return res; + } + if (size < 2*sizeof(UWord)) + size += sizeof(UWord); + if (size >= allctr->sbc_threshold) { + Block_t *blk; + blk = create_carrier(allctr, size, CFLG_SBC); + res = blk ? BLK2UMEM(blk) : NULL; + } + else + res = mbc_alloc(allctr, size); + if (res) { + fix->u.cpool.used++; + fix->u.cpool.allocated++; + } + return res; +} + +static ERTS_INLINE void +fix_cpool_free(Allctr_t *allctr, + ErtsAlcType_t type, + void *p, + Carrier_t **busy_pcrr_pp) +{ + ErtsAlcFixList_t *fix; + + ASSERT(ERTS_ALC_N_MIN_A_FIXED_SIZE <= type + && type <= ERTS_ALC_N_MAX_A_FIXED_SIZE); + + fix = &allctr->fix[type - ERTS_ALC_N_MIN_A_FIXED_SIZE]; + + fix->u.cpool.used--; + + if ((!busy_pcrr_pp || !*busy_pcrr_pp) + && !fix->u.cpool.shrink_list + && fix->list_size < ERTS_ALCU_FIX_MAX_LIST_SZ) { + *((void **) p) = fix->list; + fix->list = p; + fix->list_size++; + sched_fix_shrink(allctr, 1); + } + else { + Block_t *blk = UMEM2BLK(p); + if (IS_SBC_BLK(blk)) + destroy_carrier(allctr, blk, NULL); + else + mbc_free(allctr, p, busy_pcrr_pp); + fix->u.cpool.allocated--; + fix_cpool_check_shrink(allctr, type, fix, busy_pcrr_pp); + } +} + +static ERTS_INLINE erts_aint32_t +fix_cpool_alloc_shrink(Allctr_t *allctr, erts_aint32_t flgs) { int all_empty = 1; erts_aint32_t res = 0; int ix, o; - ErtsAlcFixList_t *fix = allctr->fix; int flush = flgs == 0; #ifdef USE_THREADS @@ -701,56 +1133,204 @@ erts_alcu_fix_alloc_shrink(Allctr_t *allctr, erts_aint32_t flgs) #endif for (ix = 0; ix < ERTS_ALC_NO_FIXED_SIZES; ix++) { + ErtsAlcFixList_t *fix = &allctr->fix[ix]; + ErtsAlcType_t type; ERTS_DBG_CHK_FIX_LIST(allctr, fix, ix, 1); - if (flgs & ERTS_SSI_AUX_WORK_FIX_ALLOC_LOWER_LIM) { - fix[ix].limit = fix[ix].max_used; - if (fix[ix].limit < fix[ix].used) - fix[ix].limit = fix[ix].used; - fix[ix].max_used = fix[ix].used; - ASSERT(fix[ix].limit >= 0); - - } - if (flush) { - fix[ix].limit = 0; - fix[ix].max_used = fix[ix].used; - ASSERT(fix[ix].limit >= 0); + if (flush) + fix->u.cpool.shrink_list = fix->list_size; + else if (flgs & ERTS_SSI_AUX_WORK_FIX_ALLOC_LOWER_LIM) { + fix->u.cpool.shrink_list = fix->u.cpool.min_list_size; + fix->u.cpool.min_list_size = fix->list_size; } + type = (ErtsAlcType_t) (ix + ERTS_ALC_N_MIN_A_FIXED_SIZE); for (o = 0; o < ERTS_ALC_FIX_MAX_SHRINK_OPS || flush; o++) { - Block_t *blk; void *ptr; - if (!flush && fix[ix].limit >= fix[ix].allocated) + if (fix->u.cpool.shrink_list == 0) break; - if (fix[ix].list_size == 0) + if (fix->list_size == 0) { + fix->u.cpool.shrink_list = 0; break; - ptr = fix[ix].list; - fix[ix].list = *((void **) ptr); - fix[ix].list_size--; + } + ptr = fix->list; + fix->list = *((void **) ptr); + fix->list_size--; + fix->u.cpool.shrink_list--; + fix->u.cpool.allocated--; + dealloc_fix_block(allctr, type, ptr, 0); + } + if (fix->u.cpool.min_list_size > fix->list_size) + fix->u.cpool.min_list_size = fix->list_size; + if (fix->list_size != 0) { + if (fix->u.cpool.shrink_list > 0) + res |= ERTS_SSI_AUX_WORK_FIX_ALLOC_DEALLOC; + all_empty = 0; + } + } + + if (all_empty) + sched_fix_shrink(allctr, 0); + +#ifdef USE_THREADS + if (allctr->thread_safe) + erts_mtx_unlock(&allctr->mutex); +#endif + + return res; +} + +static ERTS_INLINE void * +fix_nocpool_alloc(Allctr_t *allctr, ErtsAlcType_t type, Uint size) +{ + ErtsAlcFixList_t *fix; + void *res; + + ASSERT(ERTS_ALC_N_MIN_A_FIXED_SIZE <= type + && type <= ERTS_ALC_N_MAX_A_FIXED_SIZE); - blk = UMEM2BLK(ptr); + fix = &allctr->fix[type - ERTS_ALC_N_MIN_A_FIXED_SIZE]; + ERTS_DBG_CHK_FIX_LIST(allctr, fix, ix, 1); + fix->u.nocpool.used++; + res = fix->list; + if (res) { + fix->list_size--; + fix->list = *((void **) res); + if (fix->list && fix->u.nocpool.allocated > fix->u.nocpool.limit) { + Block_t *blk; + void *p = fix->list; + fix->list = *((void **) p); + fix->list_size--; + blk = UMEM2BLK(p); if (IS_SBC_BLK(blk)) - destroy_carrier(allctr, blk); + destroy_carrier(allctr, blk, NULL); else - mbc_free(allctr, ptr); + mbc_free(allctr, p, NULL); + fix->u.nocpool.allocated--; + } + ERTS_DBG_CHK_FIX_LIST(allctr, fix, ix, 0); + return res; + } + if (size < 2*sizeof(UWord)) + size += sizeof(UWord); + if (fix->u.nocpool.limit < fix->u.nocpool.used) + fix->u.nocpool.limit = fix->u.nocpool.used; + if (fix->u.nocpool.max_used < fix->u.nocpool.used) + fix->u.nocpool.max_used = fix->u.nocpool.used; + fix->u.nocpool.allocated++; + + if (size >= allctr->sbc_threshold) { + Block_t *blk; + blk = create_carrier(allctr, size, CFLG_SBC); + res = blk ? BLK2UMEM(blk) : NULL; + } + else + res = mbc_alloc(allctr, size); + + if (!res) { + fix->u.nocpool.allocated--; + fix->u.nocpool.used--; + } + return res; +} + +static ERTS_INLINE void +fix_nocpool_free(Allctr_t *allctr, + ErtsAlcType_t type, + void *p) +{ + Block_t *blk; + ErtsAlcFixList_t *fix; + + ASSERT(ERTS_ALC_N_MIN_A_FIXED_SIZE <= type + && type <= ERTS_ALC_N_MAX_A_FIXED_SIZE); + + fix = &allctr->fix[type - ERTS_ALC_N_MIN_A_FIXED_SIZE]; + + ERTS_DBG_CHK_FIX_LIST(allctr, fix, ix, 1); + fix->u.nocpool.used--; + if (fix->u.nocpool.allocated < fix->u.nocpool.limit + && fix->list_size < ERTS_ALCU_FIX_MAX_LIST_SZ) { + *((void **) p) = fix->list; + fix->list = p; + fix->list_size++; + sched_fix_shrink(allctr, 1); + ERTS_DBG_CHK_FIX_LIST(allctr, fix, ix, 0); + return; + } + fix->u.nocpool.allocated--; + if (fix->list && fix->u.nocpool.allocated > fix->u.nocpool.limit) { + blk = UMEM2BLK(p); + if (IS_SBC_BLK(blk)) + destroy_carrier(allctr, blk, NULL); + else + mbc_free(allctr, p, NULL); + p = fix->list; + fix->list = *((void **) p); + fix->list_size--; + fix->u.nocpool.allocated--; + } + + blk = UMEM2BLK(p); + if (IS_SBC_BLK(blk)) + destroy_carrier(allctr, blk, NULL); + else + mbc_free(allctr, p, NULL); + ERTS_DBG_CHK_FIX_LIST(allctr, fix, ix, 0); +} + +static ERTS_INLINE erts_aint32_t +fix_nocpool_alloc_shrink(Allctr_t *allctr, erts_aint32_t flgs) +{ + int all_empty = 1; + erts_aint32_t res = 0; + int ix, o; + int flush = flgs == 0; + +#ifdef USE_THREADS + if (allctr->thread_safe) + erts_mtx_lock(&allctr->mutex); +#endif + + for (ix = 0; ix < ERTS_ALC_NO_FIXED_SIZES; ix++) { + ErtsAlcFixList_t *fix = &allctr->fix[ix]; + ERTS_DBG_CHK_FIX_LIST(allctr, fix, ix, 1); + if (flgs & ERTS_SSI_AUX_WORK_FIX_ALLOC_LOWER_LIM) { + fix->u.nocpool.limit = fix->u.nocpool.max_used; + if (fix->u.nocpool.limit < fix->u.nocpool.used) + fix->u.nocpool.limit = fix->u.nocpool.used; + fix->u.nocpool.max_used = fix->u.nocpool.used; + ASSERT(fix->u.nocpool.limit >= 0); + + } + if (flush) { + fix->u.nocpool.limit = 0; + fix->u.nocpool.max_used = fix->u.nocpool.used; + ASSERT(fix->u.nocpool.limit >= 0); + } + for (o = 0; o < ERTS_ALC_FIX_MAX_SHRINK_OPS || flush; o++) { + void *ptr; - fix[ix].allocated--; + if (!flush && fix->u.nocpool.limit >= fix->u.nocpool.allocated) + break; + if (fix->list_size == 0) + break; + ptr = fix->list; + fix->list = *((void **) ptr); + fix->list_size--; + dealloc_block(allctr, ptr, 0); + fix->u.nocpool.allocated--; } - if (fix[ix].list_size != 0) { - if (fix[ix].limit < fix[ix].allocated) + if (fix->list_size != 0) { + if (fix->u.nocpool.limit < fix->u.nocpool.allocated) res |= ERTS_SSI_AUX_WORK_FIX_ALLOC_DEALLOC; all_empty = 0; } ERTS_DBG_CHK_FIX_LIST(allctr, fix, ix, 0); } - if (all_empty && allctr->fix_shrink_scheduled) { - allctr->fix_shrink_scheduled = 0; - erts_set_aux_work_timeout(allctr->ix, - (ERTS_SSI_AUX_WORK_FIX_ALLOC_LOWER_LIM - | ERTS_SSI_AUX_WORK_FIX_ALLOC_DEALLOC), - 0); - } + if (all_empty) + sched_fix_shrink(allctr, 0); #ifdef USE_THREADS if (allctr->thread_safe) @@ -760,18 +1340,21 @@ erts_alcu_fix_alloc_shrink(Allctr_t *allctr, erts_aint32_t flgs) return res; } -#ifdef ERTS_SMP +erts_aint32_t +erts_alcu_fix_alloc_shrink(Allctr_t *allctr, erts_aint32_t flgs) +{ + if (ERTS_ALC_IS_CPOOL_ENABLED(allctr)) + return fix_cpool_alloc_shrink(allctr, flgs); + else + return fix_nocpool_alloc_shrink(allctr, flgs); +} -#define ERTS_ALCU_DD_FIX_TYPE_OFFS \ - ((sizeof(ErtsAllctrDDBlock_t)-1)/sizeof(UWord) + 1) +static void dealloc_carrier(Allctr_t *allctr, Carrier_t *crr, int superaligned); -#define ERTS_AU_PREF_ALLOC_IX_MASK \ - ((((UWord) 1) << ERTS_AU_PREF_ALLOC_BITS) - 1) -#define ERTS_AU_PREF_ALLOC_SIZE_MASK \ - ((((UWord) 1) << (sizeof(UWord)*8 - ERTS_AU_PREF_ALLOC_BITS)) - 1) +#ifdef ERTS_SMP -static ERTS_INLINE int -get_pref_allctr(void *extra, Allctr_t **allctr) +static ERTS_INLINE Allctr_t* +get_pref_allctr(void *extra) { ErtsAllocatorThrSpec_t *tspec = (ErtsAllocatorThrSpec_t *) extra; int pref_ix; @@ -781,34 +1364,99 @@ get_pref_allctr(void *extra, Allctr_t **allctr) ASSERT(sizeof(UWord) == sizeof(Allctr_t *)); ASSERT(0 <= pref_ix && pref_ix < tspec->size); - *allctr = tspec->allctr[pref_ix]; - return pref_ix; + return tspec->allctr[pref_ix]; } -static ERTS_INLINE void * -get_used_allctr(void *extra, void *p, Allctr_t **allctr, UWord *sizep) -{ - ErtsAllocatorThrSpec_t *tspec = (ErtsAllocatorThrSpec_t *) extra; - void *ptr = (void *) (((char *) p) - sizeof(UWord)); - UWord ainfo = *((UWord *) ptr); - int aix = (int) (ainfo & ERTS_AU_PREF_ALLOC_IX_MASK); - *allctr = tspec->allctr[aix]; - if (sizep) - *sizep = ((ainfo >> ERTS_AU_PREF_ALLOC_BITS) - & ERTS_AU_PREF_ALLOC_SIZE_MASK); - return ptr; -} +#define ERTS_ALC_TS_PREF_LOCK_IF_USED (1) +#define ERTS_ALC_TS_PREF_LOCK_NO (0) -static ERTS_INLINE void * -put_used_allctr(void *p, int ix, UWord size) +/* SMP note: + * get_used_allctr() must be safe WITHOUT locking the allocator while + * concurrent threads may be updating adjacent blocks. + * We rely on getting a consistent result (without atomic op) when reading + * the block header word even if a concurrent thread is updating + * the "PREV_FREE" flag bit. + */ +static ERTS_INLINE Allctr_t* +get_used_allctr(Allctr_t *pref_allctr, int pref_lock, void *p, UWord *sizep, + Carrier_t **busy_pcrr_pp) { - UWord ainfo = (size >= ERTS_AU_PREF_ALLOC_SIZE_MASK - ? ERTS_AU_PREF_ALLOC_SIZE_MASK - : size); - ainfo <<= ERTS_AU_PREF_ALLOC_BITS; - ainfo |= (UWord) ix; - *((UWord *) p) = ainfo; - return (void *) (((char *) p) + sizeof(UWord)); + Block_t* blk = UMEM2BLK(p); + Carrier_t *crr; + erts_aint_t iallctr; + Allctr_t *used_allctr; + + *busy_pcrr_pp = NULL; + + if (IS_SBC_BLK(blk)) { + crr = BLK_TO_SBC(blk); + if (sizep) + *sizep = SBC_BLK_SZ(blk) - ABLK_HDR_SZ; + iallctr = erts_smp_atomic_read_dirty(&crr->allctr); + } + else { + crr = ABLK_TO_MBC(blk); + + if (sizep) + *sizep = MBC_ABLK_SZ(blk) - ABLK_HDR_SZ; + if (!ERTS_ALC_IS_CPOOL_ENABLED(pref_allctr)) + iallctr = erts_smp_atomic_read_dirty(&crr->allctr); + else { + int locked_pref_allctr = 0; + iallctr = erts_smp_atomic_read_ddrb(&crr->allctr); + + if (ERTS_ALC_TS_PREF_LOCK_IF_USED == pref_lock + && pref_allctr->thread_safe) { + used_allctr = (Allctr_t *) (iallctr & ~ERTS_CRR_ALCTR_FLG_MASK); + if (pref_allctr == used_allctr) { + erts_mtx_lock(&pref_allctr->mutex); + locked_pref_allctr = 1; + } + } + + while ((iallctr & ((~ERTS_CRR_ALCTR_FLG_MASK)|ERTS_CRR_ALCTR_FLG_IN_POOL)) + == (((erts_aint_t) pref_allctr)|ERTS_CRR_ALCTR_FLG_IN_POOL)) { + erts_aint_t act; + + ERTS_ALC_CPOOL_ASSERT(!(iallctr & ERTS_CRR_ALCTR_FLG_BUSY)); + act = erts_smp_atomic_cmpxchg_ddrb(&crr->allctr, + iallctr|ERTS_CRR_ALCTR_FLG_BUSY, + iallctr); + if (act == iallctr) { + *busy_pcrr_pp = crr; + break; + } + iallctr = act; + } + + used_allctr = (Allctr_t *) (iallctr & ~ERTS_CRR_ALCTR_FLG_MASK); + + if (ERTS_ALC_TS_PREF_LOCK_IF_USED == pref_lock) { + if (locked_pref_allctr && used_allctr != pref_allctr) { + /* Was taken out of pool; now owned by someone else */ + erts_mtx_unlock(&pref_allctr->mutex); + } + } + + ERTS_ALC_CPOOL_ASSERT( + (((iallctr & ~ERTS_CRR_ALCTR_FLG_MASK) == (erts_aint_t) pref_allctr) + ? (((iallctr & ERTS_CRR_ALCTR_FLG_MASK) == ERTS_CRR_ALCTR_FLG_IN_POOL) + || ((iallctr & ERTS_CRR_ALCTR_FLG_MASK) == 0)) + : 1)); + + return used_allctr; + } + } + + used_allctr = (Allctr_t *) (iallctr & ~ERTS_CRR_ALCTR_FLG_MASK); + + if (ERTS_ALC_TS_PREF_LOCK_IF_USED == pref_lock + && used_allctr == pref_allctr + && pref_allctr->thread_safe) { + erts_mtx_lock(&pref_allctr->mutex); + } + + return used_allctr; } static void @@ -903,7 +1551,7 @@ check_insert_marker(ErtsAllctrDDQueue_t *ddq, erts_aint_t ilast) } static ERTS_INLINE int -ddq_enqueue(ErtsAlcType_t type, ErtsAllctrDDQueue_t *ddq, void *ptr, int cinit) +ddq_enqueue(ErtsAllctrDDQueue_t *ddq, void *ptr, int cinit) { int last_elem; int um_refc_ix = 0; @@ -1004,6 +1652,59 @@ store_earliest_thr_prgr(ErtsThrPrgrVal *prev_val, ErtsAllctrDDQueue_t *ddq) } } +static void +check_pending_dealloc_carrier(Allctr_t *allctr, + int *need_thr_progress, + ErtsThrPrgrVal *thr_prgr_p, + int *need_more_work); + +static void +handle_delayed_fix_dealloc(Allctr_t *allctr, void *ptr) +{ + ErtsAlcType_t type; + + type = ((ErtsAllctrFixDDBlock_t *) ptr)->fix_type; + + ASSERT(ERTS_ALC_N_MIN_A_FIXED_SIZE <= type + && type <= ERTS_ALC_N_MAX_A_FIXED_SIZE); + + if (!ERTS_ALC_IS_CPOOL_ENABLED(allctr)) + fix_nocpool_free(allctr, type, ptr); + else { + Block_t *blk = UMEM2BLK(ptr); + Carrier_t *busy_pcrr_p; + Allctr_t *used_allctr; + + if (IS_SBC_BLK(blk)) { + busy_pcrr_p = NULL; + goto doit; + } + + used_allctr = get_used_allctr(allctr, ERTS_ALC_TS_PREF_LOCK_NO, ptr, + NULL, &busy_pcrr_p); + if (used_allctr == allctr) { + doit: + fix_cpool_free(allctr, type, ptr, &busy_pcrr_p); + clear_busy_pool_carrier(allctr, busy_pcrr_p); + } + else { + /* Carrier migrated; need to redirect block to new owner... */ + int cinit = used_allctr->dd.ix - allctr->dd.ix; + + ERTS_ALC_CPOOL_ASSERT(!busy_pcrr_p); + + DEC_CC(allctr->calls.this_free); + + ((ErtsAllctrFixDDBlock_t *) ptr)->fix_type = type; + if (ddq_enqueue(&used_allctr->dd.q, ptr, cinit)) + erts_alloc_notify_delayed_dealloc(used_allctr->ix); + } + } +} + +static void +schedule_dealloc_carrier(Allctr_t *allctr, Carrier_t *crr); + static ERTS_INLINE int handle_delayed_dealloc(Allctr_t *allctr, int allctr_locked, @@ -1035,7 +1736,6 @@ handle_delayed_dealloc(Allctr_t *allctr, while (1) { Block_t *blk; void *ptr; - int ix; if (use_limit && ++ops > ops_limit) { if (ddq->head.first != ddq->head.unref_end) { @@ -1064,52 +1764,36 @@ handle_delayed_dealloc(Allctr_t *allctr, res = 1; - INC_CC(allctr->calls.this_free); + blk = UMEM2BLK(ptr); + if (IS_FREE_LAST_MBC_BLK(blk)) { + /* + * A multiblock carrier that previously has been migrated away + * from us and now is back to be deallocated. For more info + * see schedule_dealloc_carrier(). + * + * Note that we cannot use FBLK_TO_MBC(blk) since it + * data has been overwritten by the queue. + */ + Carrier_t *crr = FIRST_BLK_TO_MBC(allctr, blk); + ERTS_ALC_CPOOL_ASSERT(ERTS_ALC_IS_CPOOL_ENABLED(allctr)); + ERTS_ALC_CPOOL_ASSERT(allctr == crr->cpool.orig_allctr); + ERTS_ALC_CPOOL_ASSERT(((erts_aint_t) allctr) + != (erts_smp_atomic_read_nob(&crr->allctr) + & ~ERTS_CRR_ALCTR_FLG_MASK)); - if (fix) { - ErtsAlcType_t type; - - type = (ErtsAlcType_t) ((UWord *) ptr)[ERTS_ALCU_DD_FIX_TYPE_OFFS]; - ix = type - ERTS_ALC_N_MIN_A_FIXED_SIZE; - ERTS_DBG_CHK_FIX_LIST(allctr, fix, ix, 1); - fix[ix].used--; - if (fix[ix].allocated < fix[ix].limit - && fix[ix].list_size < ERTS_ALCU_FIX_MAX_LIST_SZ) { - *((void **) ptr) = fix[ix].list; - fix[ix].list = ptr; - fix[ix].list_size++; - if (!allctr->fix_shrink_scheduled) { - allctr->fix_shrink_scheduled = 1; - erts_set_aux_work_timeout( - allctr->ix, - (ERTS_SSI_AUX_WORK_FIX_ALLOC_LOWER_LIM - | ERTS_SSI_AUX_WORK_FIX_ALLOC_DEALLOC), - 1); - } - ERTS_DBG_CHK_FIX_LIST(allctr, fix, ix, 0); - continue; - } - fix[ix].allocated--; - if (fix[ix].list && fix[ix].allocated > fix[ix].limit) { - blk = UMEM2BLK(ptr); - if (IS_SBC_BLK(blk)) - destroy_carrier(allctr, blk); - else - mbc_free(allctr, ptr); - ptr = fix[ix].list; - fix[ix].list = *((void **) ptr); - fix[ix].list_size--; - fix[ix].allocated--; - } + erts_smp_atomic_set_nob(&crr->allctr, ((erts_aint_t) allctr)); + + schedule_dealloc_carrier(allctr, crr); } + else { - blk = UMEM2BLK(ptr); + INC_CC(allctr->calls.this_free); - if (IS_SBC_BLK(blk)) - destroy_carrier(allctr, blk); - else - mbc_free(allctr, ptr); - ERTS_DBG_CHK_FIX_LIST(allctr, fix, ix, 0); + if (fix) + handle_delayed_fix_dealloc(allctr, ptr); + else + dealloc_block(allctr, ptr, 1); + } } if (need_thr_progress && !(need_thr_prgr | need_mr_wrk)) { @@ -1119,6 +1803,12 @@ handle_delayed_dealloc(Allctr_t *allctr, store_earliest_thr_prgr(thr_prgr_p, ddq); } + if (ERTS_ALC_IS_CPOOL_ENABLED(allctr)) + check_pending_dealloc_carrier(allctr, + need_thr_progress, + thr_prgr_p, + need_more_work); + if (allctr->thread_safe && !allctr_locked) erts_mtx_unlock(&allctr->mutex); return res; @@ -1131,15 +1821,61 @@ enqueue_dealloc_other_instance(ErtsAlcType_t type, int cinit) { if (allctr->fix) - ((UWord *) ptr)[ERTS_ALCU_DD_FIX_TYPE_OFFS] = (UWord) type; + ((ErtsAllctrFixDDBlock_t*) ptr)->fix_type = type; - if (ddq_enqueue(type, &allctr->dd.q, ptr, cinit)) + if (ddq_enqueue(&allctr->dd.q, ptr, cinit)) erts_alloc_notify_delayed_dealloc(allctr->ix); } #endif #ifdef ERTS_SMP +static void +set_new_allctr_abandon_limit(Allctr_t *allctr); +static void +abandon_carrier(Allctr_t *allctr, Carrier_t *crr); + + +static ERTS_INLINE void +check_abandon_carrier(Allctr_t *allctr, Block_t *fblk, Carrier_t **busy_pcrr_pp) +{ + Carrier_t *crr; + + if (busy_pcrr_pp && *busy_pcrr_pp) + return; + + if (!ERTS_ALC_IS_CPOOL_ENABLED(allctr)) + return; + + allctr->cpool.check_limit_count--; + if (--allctr->cpool.check_limit_count <= 0) + set_new_allctr_abandon_limit(allctr); + + if (!erts_thr_progress_is_managed_thread()) + return; + + if (allctr->cpool.disable_abandon) + return; + + if (allctr->mbcs.blocks.curr.size > allctr->cpool.abandon_limit) + return; + + + crr = FBLK_TO_MBC(fblk); + + if (allctr->main_carrier == crr) + return; + + if (crr->cpool.blocks_size > crr->cpool.abandon_limit) + return; + + if (crr->cpool.thr_prgr != ERTS_THR_PRGR_INVALID + && !erts_thr_progress_has_reached(crr->cpool.thr_prgr)) + return; + + abandon_carrier(allctr, crr); +} + void erts_alcu_check_delayed_dealloc(Allctr_t *allctr, int limit, @@ -1157,80 +1893,88 @@ erts_alcu_check_delayed_dealloc(Allctr_t *allctr, } #endif -#define ERTS_ALCU_HANDLE_DD_IN_OP(Allctr, Locked) \ - handle_delayed_dealloc((Allctr), (Locked), 1, \ +#define ERTS_ALCU_HANDLE_DD_IN_OP(Allctr, Locked) \ + handle_delayed_dealloc((Allctr), (Locked), 1, \ ERTS_ALCU_DD_OPS_LIM_LOW, NULL, NULL, NULL) +static void +dealloc_block(Allctr_t *allctr, void *ptr, int dec_cc_on_redirect) +{ + Block_t *blk = UMEM2BLK(ptr); + + ERTS_SMP_LC_ASSERT(!allctr->thread_safe + || erts_lc_mtx_is_locked(&allctr->mutex)); + + if (IS_SBC_BLK(blk)) + destroy_carrier(allctr, blk, NULL); +#ifndef ERTS_SMP + else + mbc_free(allctr, ptr, NULL); +#else + else if (!ERTS_ALC_IS_CPOOL_ENABLED(allctr)) + mbc_free(allctr, ptr, NULL); + else { + Carrier_t *busy_pcrr_p; + Allctr_t *used_allctr; + used_allctr = get_used_allctr(allctr, ERTS_ALC_TS_PREF_LOCK_NO, ptr, + NULL, &busy_pcrr_p); + if (used_allctr == allctr) { + mbc_free(allctr, ptr, &busy_pcrr_p); + clear_busy_pool_carrier(allctr, busy_pcrr_p); + } + else { + /* Carrier migrated; need to redirect block to new owner... */ + int cinit = used_allctr->dd.ix - allctr->dd.ix; + + ERTS_ALC_CPOOL_ASSERT(!busy_pcrr_p); + + if (dec_cc_on_redirect) + DEC_CC(allctr->calls.this_free); + if (ddq_enqueue(&used_allctr->dd.q, ptr, cinit)) + erts_alloc_notify_delayed_dealloc(used_allctr->ix); + } + } +#endif +} + /* Multi block carrier alloc/realloc/free ... */ /* NOTE! mbc_alloc() may in case of memory shortage place the requested * block in a sbc. */ static ERTS_INLINE void * -mbc_alloc_block(Allctr_t *allctr, Uint size, Uint *blk_szp, Uint32 *alcu_flgsp) +mbc_alloc_block(Allctr_t *allctr, Uint size, Uint *blk_szp) { Block_t *blk; Uint get_blk_sz; - Uint sbmbct; ASSERT(size); ASSERT(size < allctr->sbc_threshold); *blk_szp = get_blk_sz = UMEMSZ2BLKSZ(allctr, size); - sbmbct = allctr->sbmbc_threshold; - if (sbmbct) { - if (get_blk_sz < sbmbct) { - *alcu_flgsp |= ERTS_ALCU_FLG_SBMBC; - if (get_blk_sz + allctr->min_block_size > sbmbct) { - /* Since we use block size to determine if blocks are - located in sbmbc or not... */ - get_blk_sz += allctr->min_block_size; - } - } - } - -#ifdef ERTS_SMP - if (allctr->dd.use) - ERTS_ALCU_HANDLE_DD_IN_OP(allctr, 1); -#endif - - blk = (*allctr->get_free_block)(allctr, get_blk_sz, NULL, 0, *alcu_flgsp); - -#ifdef ERTS_SMP - if (!blk && allctr->dd.use) { - if (ERTS_ALCU_HANDLE_DD_IN_OP(allctr, 1)) - blk = (*allctr->get_free_block)(allctr, get_blk_sz, NULL, 0, - *alcu_flgsp); - } -#endif + blk = (*allctr->get_free_block)(allctr, get_blk_sz, NULL, 0); if (!blk) { - if ((*alcu_flgsp) & ERTS_ALCU_FLG_SBMBC) - blk = create_sbmbc(allctr, get_blk_sz); - else { -#if HALFWORD_HEAP - blk = create_carrier(allctr, get_blk_sz, CFLG_MBC|CFLG_FORCE_MSEG); -#else - blk = create_carrier(allctr, get_blk_sz, CFLG_MBC); - if (!blk) { - /* Emergency! We couldn't create the carrier as we wanted. - Try to place it in a sys_alloced sbc. */ - blk = create_carrier(allctr, - size, - (CFLG_SBC - | CFLG_FORCE_SIZE - | CFLG_FORCE_SYS_ALLOC)); - } -#endif + blk = create_carrier(allctr, get_blk_sz, CFLG_MBC); +#if !HALFWORD_HEAP && !ERTS_SUPER_ALIGNED_MSEG_ONLY + if (!blk) { + /* Emergency! We couldn't create the carrier as we wanted. + Try to place it in a sys_alloced sbc. */ + blk = create_carrier(allctr, + size, + (CFLG_SBC + | CFLG_FORCE_SIZE + | CFLG_FORCE_SYS_ALLOC)); } +#endif } #ifdef ERTS_ALLOC_UTIL_HARD_DEBUG if (IS_MBC_BLK(blk)) { - (*allctr->link_free_block)(allctr, blk, *alcu_flgsp); + (*allctr->link_free_block)(allctr, blk); HARD_CHECK_BLK_CARRIER(allctr, blk); - (*allctr->unlink_free_block)(allctr, blk, *alcu_flgsp); + (*allctr->unlink_free_block)(allctr, blk); } #endif @@ -1242,9 +1986,9 @@ mbc_alloc_finalize(Allctr_t *allctr, Block_t *blk, Uint org_blk_sz, UWord flags, + Carrier_t *crr, Uint want_blk_sz, - int valid_blk_info, - Uint32 alcu_flgs) + int valid_blk_info) { Uint blk_sz; Uint nxt_blk_sz; @@ -1262,25 +2006,21 @@ mbc_alloc_finalize(Allctr_t *allctr, /* Shrink block... */ blk_sz = want_blk_sz; nxt_blk_sz = org_blk_sz - blk_sz; - SET_BLK_HDR(blk, - blk_sz, - SBH_THIS_ALLOCED|SBH_NOT_LAST_BLK|prev_free_flg); + SET_MBC_ABLK_HDR(blk, blk_sz, prev_free_flg, crr); - nxt_blk = NXT_BLK(blk); - SET_BLK_HDR(nxt_blk, - nxt_blk_sz, - (SBH_THIS_FREE - | SBH_PREV_ALLOCED - | (flags & LAST_BLK_HDR_FLG))); + nxt_blk = BLK_AFTER(blk, blk_sz); + SET_MBC_FBLK_HDR(nxt_blk, nxt_blk_sz, + SBH_THIS_FREE|(flags & LAST_BLK_HDR_FLG), + crr); if (!(flags & LAST_BLK_HDR_FLG)) { SET_BLK_SZ_FTR(nxt_blk, nxt_blk_sz); if (!valid_blk_info) { - Block_t *nxt_nxt_blk = NXT_BLK(nxt_blk); - SET_PREV_BLK_FREE(nxt_nxt_blk); + Block_t *nxt_nxt_blk = BLK_AFTER(nxt_blk, nxt_blk_sz); + SET_PREV_BLK_FREE(allctr, nxt_nxt_blk); } } - (*allctr->link_free_block)(allctr, nxt_blk, alcu_flgs); + (*allctr->link_free_block)(allctr, nxt_blk); ASSERT(IS_NOT_LAST_BLK(blk)); ASSERT(IS_FREE_BLK(nxt_blk)); @@ -1291,40 +2031,41 @@ mbc_alloc_finalize(Allctr_t *allctr, || nxt_blk == PREV_BLK(NXT_BLK(nxt_blk))); ASSERT((flags & LAST_BLK_HDR_FLG) || IS_PREV_BLK_FREE(NXT_BLK(nxt_blk))); - ASSERT(nxt_blk_sz == BLK_SZ(nxt_blk)); + ASSERT(nxt_blk_sz == MBC_BLK_SZ(nxt_blk)); ASSERT(nxt_blk_sz % sizeof(Unit_t) == 0); ASSERT(nxt_blk_sz >= allctr->min_block_size); + ASSERT(ABLK_TO_MBC(blk) == crr); + ASSERT(FBLK_TO_MBC(nxt_blk) == crr); } else { + ASSERT(org_blk_sz <= MBC_ABLK_SZ_MASK); blk_sz = org_blk_sz; if (flags & LAST_BLK_HDR_FLG) { if (valid_blk_info) SET_BLK_ALLOCED(blk); else - SET_BLK_HDR(blk, - blk_sz, - SBH_THIS_ALLOCED|SBH_LAST_BLK|prev_free_flg); + SET_MBC_ABLK_HDR(blk, blk_sz, SBH_LAST_BLK|prev_free_flg, crr); } else { if (valid_blk_info) SET_BLK_ALLOCED(blk); else - SET_BLK_HDR(blk, - blk_sz, - SBH_THIS_ALLOCED|SBH_NOT_LAST_BLK|prev_free_flg); - nxt_blk = NXT_BLK(blk); + SET_MBC_ABLK_HDR(blk, blk_sz, prev_free_flg, crr); + nxt_blk = BLK_AFTER(blk, blk_sz); SET_PREV_BLK_ALLOCED(nxt_blk); } ASSERT((flags & LAST_BLK_HDR_FLG) ? IS_LAST_BLK(blk) : IS_NOT_LAST_BLK(blk)); + ASSERT(ABLK_TO_MBC(blk) == crr); } - STAT_MBC_BLK_ALLOC(allctr, blk_sz, alcu_flgs); + ERTS_ALC_CPOOL_ALLOC_OP(allctr); + STAT_MBC_BLK_ALLOC(allctr, crr, blk_sz, alcu_flgs); ASSERT(IS_ALLOCED_BLK(blk)); - ASSERT(blk_sz == BLK_SZ(blk)); + ASSERT(blk_sz == MBC_BLK_SZ(blk)); ASSERT(blk_sz % sizeof(Unit_t) == 0); ASSERT(blk_sz >= allctr->min_block_size); ASSERT(blk_sz >= want_blk_sz); @@ -1341,57 +2082,57 @@ mbc_alloc(Allctr_t *allctr, Uint size) { Block_t *blk; Uint blk_sz; - Uint32 alcu_flgs = 0; - blk = mbc_alloc_block(allctr, size, &blk_sz, &alcu_flgs); + blk = mbc_alloc_block(allctr, size, &blk_sz); if (!blk) return NULL; if (IS_MBC_BLK(blk)) mbc_alloc_finalize(allctr, blk, - BLK_SZ(blk), + MBC_FBLK_SZ(blk), GET_BLK_HDR_FLGS(blk), + FBLK_TO_MBC(blk), blk_sz, - 1, - alcu_flgs); + 1); return BLK2UMEM(blk); } static void -mbc_free(Allctr_t *allctr, void *p) +mbc_free(Allctr_t *allctr, void *p, Carrier_t **busy_pcrr_pp) { Uint is_first_blk; Uint is_last_blk; - Uint32 alcu_flgs = 0; Uint blk_sz; Block_t *blk; Block_t *nxt_blk; - + Carrier_t *crr; ASSERT(p); blk = UMEM2BLK(p); - blk_sz = BLK_SZ(blk); - if (blk_sz < allctr->sbmbc_threshold) - alcu_flgs |= ERTS_ALCU_FLG_SBMBC; + blk_sz = MBC_ABLK_SZ(blk); ASSERT(IS_MBC_BLK(blk)); ASSERT(blk_sz >= allctr->min_block_size); HARD_CHECK_BLK_CARRIER(allctr, blk); - STAT_MBC_BLK_FREE(allctr, blk_sz, alcu_flgs); + crr = ABLK_TO_MBC(blk); + + ERTS_ALC_CPOOL_FREE_OP(allctr); + STAT_MBC_BLK_FREE(allctr, crr, busy_pcrr_pp, blk_sz, alcu_flgs); - is_first_blk = IS_FIRST_BLK(blk); + is_first_blk = IS_MBC_FIRST_ABLK(allctr, blk); is_last_blk = IS_LAST_BLK(blk); - if (!is_first_blk && IS_PREV_BLK_FREE(blk)) { + if (IS_PREV_BLK_FREE(blk)) { + ASSERT(!is_first_blk); /* Coalesce with previous block... */ blk = PREV_BLK(blk); - (*allctr->unlink_free_block)(allctr, blk, alcu_flgs); + (*allctr->unlink_free_block)(allctr, blk); - blk_sz += BLK_SZ(blk); - is_first_blk = IS_FIRST_BLK(blk); - SET_BLK_SZ(blk, blk_sz); + blk_sz += MBC_FBLK_SZ(blk); + is_first_blk = IS_MBC_FIRST_FBLK(allctr, blk); + SET_MBC_FBLK_SZ(blk, blk_sz); } else { SET_BLK_FREE(blk); @@ -1400,12 +2141,12 @@ mbc_free(Allctr_t *allctr, void *p) if (is_last_blk) SET_LAST_BLK(blk); else { - nxt_blk = NXT_BLK(blk); + nxt_blk = BLK_AFTER(blk, blk_sz); if (IS_FREE_BLK(nxt_blk)) { /* Coalesce with next block... */ - (*allctr->unlink_free_block)(allctr, nxt_blk, alcu_flgs); - blk_sz += BLK_SZ(nxt_blk); - SET_BLK_SZ(blk, blk_sz); + (*allctr->unlink_free_block)(allctr, nxt_blk); + blk_sz += MBC_FBLK_SZ(nxt_blk); + SET_MBC_FBLK_SZ(blk, blk_sz); is_last_blk = IS_LAST_BLK(nxt_blk); if (is_last_blk) @@ -1416,39 +2157,40 @@ mbc_free(Allctr_t *allctr, void *p) } } else { - SET_PREV_BLK_FREE(nxt_blk); + SET_PREV_BLK_FREE(allctr, nxt_blk); SET_NOT_LAST_BLK(blk); SET_BLK_SZ_FTR(blk, blk_sz); } } - ASSERT(is_last_blk ? IS_LAST_BLK(blk) : IS_NOT_LAST_BLK(blk)); - ASSERT(is_first_blk ? IS_FIRST_BLK(blk) : IS_NOT_FIRST_BLK(blk)); ASSERT(IS_FREE_BLK(blk)); + ASSERT(!is_last_blk == !IS_LAST_BLK(blk)); + ASSERT(!is_first_blk == !IS_MBC_FIRST_FBLK(allctr, blk)); ASSERT(is_first_blk || IS_PREV_BLK_ALLOCED(blk)); ASSERT(is_last_blk || IS_PREV_BLK_FREE(NXT_BLK(blk))); - ASSERT(blk_sz == BLK_SZ(blk)); + ASSERT(blk_sz == MBC_BLK_SZ(blk)); ASSERT(is_last_blk || blk == PREV_BLK(NXT_BLK(blk))); ASSERT(blk_sz % sizeof(Unit_t) == 0); ASSERT(IS_MBC_BLK(blk)); if (is_first_blk && is_last_blk - && allctr->main_carrier != FBLK2MBC(allctr, blk)) { - if (alcu_flgs & ERTS_ALCU_FLG_SBMBC) - destroy_sbmbc(allctr, blk); - else - destroy_carrier(allctr, blk); + && allctr->main_carrier != FIRST_BLK_TO_MBC(allctr, blk)) { + destroy_carrier(allctr, blk, busy_pcrr_pp); } else { - (*allctr->link_free_block)(allctr, blk, alcu_flgs); + (*allctr->link_free_block)(allctr, blk); HARD_CHECK_BLK_CARRIER(allctr, blk); +#ifdef ERTS_SMP + check_abandon_carrier(allctr, blk, busy_pcrr_pp); +#endif } } static void * -mbc_realloc(Allctr_t *allctr, void *p, Uint size, Uint32 alcu_flgs) +mbc_realloc(Allctr_t *allctr, void *p, Uint size, Uint32 alcu_flgs, + Carrier_t **busy_pcrr_pp) { void *new_p; Uint old_blk_sz; @@ -1462,17 +2204,12 @@ mbc_realloc(Allctr_t *allctr, void *p, Uint size, Uint32 alcu_flgs) Uint is_last_blk; #endif /* #ifndef MBC_REALLOC_ALWAYS_MOVES */ -#ifdef ERTS_SMP - if (allctr->dd.use) - ERTS_ALCU_HANDLE_DD_IN_OP(allctr, 1); -#endif - ASSERT(p); ASSERT(size); ASSERT(size < allctr->sbc_threshold); blk = (Block_t *) UMEM2BLK(p); - old_blk_sz = BLK_SZ(blk); + old_blk_sz = MBC_ABLK_SZ(blk); ASSERT(old_blk_sz >= allctr->min_block_size); @@ -1480,13 +2217,13 @@ mbc_realloc(Allctr_t *allctr, void *p, Uint size, Uint32 alcu_flgs) if (alcu_flgs & ERTS_ALCU_FLG_FAIL_REALLOC_MOVE) return NULL; #else /* !MBC_REALLOC_ALWAYS_MOVES */ + +#ifdef ERTS_SMP + if (busy_pcrr_pp && *busy_pcrr_pp) + goto realloc_move; /* Don't want to use carrier in pool */ +#endif + get_blk_sz = blk_sz = UMEMSZ2BLKSZ(allctr, size); - if ((alcu_flgs & ERTS_ALCU_FLG_SBMBC) - && (blk_sz + allctr->min_block_size > allctr->sbmbc_threshold)) { - /* Since we use block size to determine if blocks are - located in sbmbc or not... */ - get_blk_sz = blk_sz + allctr->min_block_size; - } ASSERT(IS_ALLOCED_BLK(blk)); ASSERT(IS_MBC_BLK(blk)); @@ -1497,6 +2234,7 @@ mbc_realloc(Allctr_t *allctr, void *p, Uint size, Uint32 alcu_flgs) return p; else if (blk_sz < old_blk_sz) { /* Shrink block... */ + Carrier_t* crr; Block_t *nxt_nxt_blk; Uint diff_sz_val = old_blk_sz - blk_sz; Uint old_blk_sz_val = old_blk_sz; @@ -1516,23 +2254,24 @@ mbc_realloc(Allctr_t *allctr, void *p, Uint size, Uint32 alcu_flgs) return NULL; cand_blk_sz = old_blk_sz; - if (!IS_PREV_BLK_FREE(blk) || IS_FIRST_BLK(blk)) + if (!IS_PREV_BLK_FREE(blk)) { cand_blk = blk; + } else { + ASSERT(!IS_MBC_FIRST_ABLK(allctr, blk)); cand_blk = PREV_BLK(blk); cand_blk_sz += PREV_BLK_SZ(blk); } if (!is_last_blk) { - nxt_blk = NXT_BLK(blk); + nxt_blk = BLK_AFTER(blk, old_blk_sz); if (IS_FREE_BLK(nxt_blk)) - cand_blk_sz += BLK_SZ(nxt_blk); + cand_blk_sz += MBC_FBLK_SZ(nxt_blk); } new_blk = (*allctr->get_free_block)(allctr, get_blk_sz, cand_blk, - cand_blk_sz, - alcu_flgs); + cand_blk_sz); if (new_blk || cand_blk != blk) goto move_into_new_blk; } @@ -1541,52 +2280,50 @@ mbc_realloc(Allctr_t *allctr, void *p, Uint size, Uint32 alcu_flgs) nxt_blk_sz = old_blk_sz - blk_sz; - if ((is_last_blk || IS_ALLOCED_BLK(NXT_BLK(blk))) + if ((is_last_blk || IS_ALLOCED_BLK(BLK_AFTER(blk,old_blk_sz))) && (nxt_blk_sz < allctr->min_block_size)) return p; HARD_CHECK_BLK_CARRIER(allctr, blk); - SET_BLK_SZ(blk, blk_sz); + nxt_nxt_blk = BLK_AFTER(blk, old_blk_sz); + + SET_MBC_ABLK_SZ(blk, blk_sz); SET_NOT_LAST_BLK(blk); - nxt_blk = NXT_BLK(blk); - SET_BLK_HDR(nxt_blk, - nxt_blk_sz, - SBH_THIS_FREE|SBH_PREV_ALLOCED|SBH_NOT_LAST_BLK); + nxt_blk = BLK_AFTER(blk, blk_sz); - STAT_MBC_BLK_FREE(allctr, old_blk_sz, alcu_flgs); - STAT_MBC_BLK_ALLOC(allctr, blk_sz, alcu_flgs); + crr = ABLK_TO_MBC(blk); - ASSERT(BLK_SZ(blk) >= allctr->min_block_size); + ERTS_ALC_CPOOL_REALLOC_OP(allctr); + STAT_MBC_BLK_FREE(allctr, crr, NULL, old_blk_sz, alcu_flgs); + STAT_MBC_BLK_ALLOC(allctr, crr, blk_sz, alcu_flgs); - if (is_last_blk) - SET_LAST_BLK(nxt_blk); - else { - nxt_nxt_blk = NXT_BLK(nxt_blk); + ASSERT(MBC_BLK_SZ(blk) >= allctr->min_block_size); + + if (!is_last_blk) { if (IS_FREE_BLK(nxt_nxt_blk)) { /* Coalesce with next free block... */ - nxt_blk_sz += BLK_SZ(nxt_nxt_blk); - (*allctr->unlink_free_block)(allctr, nxt_nxt_blk, alcu_flgs); - SET_BLK_SZ(nxt_blk, nxt_blk_sz); + nxt_blk_sz += MBC_FBLK_SZ(nxt_nxt_blk); + (*allctr->unlink_free_block)(allctr, nxt_nxt_blk); - is_last_blk = IS_LAST_BLK(nxt_nxt_blk); - if (is_last_blk) - SET_LAST_BLK(nxt_blk); - else - SET_BLK_SZ_FTR(nxt_blk, nxt_blk_sz); + is_last_blk = GET_LAST_BLK_HDR_FLG(nxt_nxt_blk); } else { - SET_BLK_SZ_FTR(nxt_blk, nxt_blk_sz); - SET_PREV_BLK_FREE(nxt_nxt_blk); + SET_PREV_BLK_FREE(allctr, nxt_nxt_blk); } + SET_BLK_SZ_FTR(nxt_blk, nxt_blk_sz); } - (*allctr->link_free_block)(allctr, nxt_blk, alcu_flgs); + SET_MBC_FBLK_HDR(nxt_blk, nxt_blk_sz, + SBH_THIS_FREE | (is_last_blk ? SBH_LAST_BLK : 0), + crr); + + (*allctr->link_free_block)(allctr, nxt_blk); ASSERT(IS_ALLOCED_BLK(blk)); - ASSERT(blk_sz == BLK_SZ(blk)); + ASSERT(blk_sz == MBC_BLK_SZ(blk)); ASSERT(blk_sz % sizeof(Unit_t) == 0); ASSERT(blk_sz >= allctr->min_block_size); ASSERT(blk_sz >= size + ABLK_HDR_SZ); @@ -1594,37 +2331,43 @@ mbc_realloc(Allctr_t *allctr, void *p, Uint size, Uint32 alcu_flgs) ASSERT(IS_FREE_BLK(nxt_blk)); ASSERT(IS_PREV_BLK_ALLOCED(nxt_blk)); - ASSERT(nxt_blk_sz == BLK_SZ(nxt_blk)); + ASSERT(nxt_blk_sz == MBC_BLK_SZ(nxt_blk)); ASSERT(nxt_blk_sz % sizeof(Unit_t) == 0); ASSERT(nxt_blk_sz >= allctr->min_block_size); ASSERT(IS_MBC_BLK(nxt_blk)); ASSERT(is_last_blk ? IS_LAST_BLK(nxt_blk) : IS_NOT_LAST_BLK(nxt_blk)); ASSERT(is_last_blk || nxt_blk == PREV_BLK(NXT_BLK(nxt_blk))); ASSERT(is_last_blk || IS_PREV_BLK_FREE(NXT_BLK(nxt_blk))); - + ASSERT(FBLK_TO_MBC(nxt_blk) == crr); + HARD_CHECK_BLK_CARRIER(allctr, blk); +#ifdef ERTS_SMP + check_abandon_carrier(allctr, nxt_blk, NULL); +#endif + return p; } /* Need larger block... */ if (!is_last_blk) { - nxt_blk = NXT_BLK(blk); - nxt_blk_sz = BLK_SZ(nxt_blk); + nxt_blk = BLK_AFTER(blk, old_blk_sz); + nxt_blk_sz = MBC_BLK_SZ(nxt_blk); if (IS_FREE_BLK(nxt_blk) && get_blk_sz <= old_blk_sz + nxt_blk_sz) { + Carrier_t* crr = ABLK_TO_MBC(blk); /* Grow into next block... */ HARD_CHECK_BLK_CARRIER(allctr, blk); - (*allctr->unlink_free_block)(allctr, nxt_blk, alcu_flgs); + (*allctr->unlink_free_block)(allctr, nxt_blk); nxt_blk_sz -= blk_sz - old_blk_sz; is_last_blk = IS_LAST_BLK(nxt_blk); if (nxt_blk_sz < allctr->min_block_size) { blk_sz += nxt_blk_sz; - SET_BLK_SZ(blk, blk_sz); + SET_MBC_ABLK_SZ(blk, blk_sz); if (is_last_blk) { SET_LAST_BLK(blk); @@ -1633,45 +2376,44 @@ mbc_realloc(Allctr_t *allctr, void *p, Uint size, Uint32 alcu_flgs) #endif } else { - nxt_blk = NXT_BLK(blk); + nxt_blk = BLK_AFTER(blk, blk_sz); SET_PREV_BLK_ALLOCED(nxt_blk); #ifdef DEBUG is_last_blk = IS_LAST_BLK(nxt_blk); - nxt_blk_sz = BLK_SZ(nxt_blk); + nxt_blk_sz = MBC_BLK_SZ(nxt_blk); #endif } } else { - SET_BLK_SZ(blk, blk_sz); + SET_MBC_ABLK_SZ(blk, blk_sz); - nxt_blk = NXT_BLK(blk); - SET_BLK_HDR(nxt_blk, - nxt_blk_sz, - SBH_THIS_FREE|SBH_PREV_ALLOCED|SBH_NOT_LAST_BLK); + nxt_blk = BLK_AFTER(blk, blk_sz); + SET_MBC_FBLK_HDR(nxt_blk, nxt_blk_sz, SBH_THIS_FREE, crr); if (is_last_blk) SET_LAST_BLK(nxt_blk); else SET_BLK_SZ_FTR(nxt_blk, nxt_blk_sz); - (*allctr->link_free_block)(allctr, nxt_blk, alcu_flgs); + (*allctr->link_free_block)(allctr, nxt_blk); ASSERT(IS_FREE_BLK(nxt_blk)); + ASSERT(FBLK_TO_MBC(nxt_blk) == crr); } - STAT_MBC_BLK_FREE(allctr, old_blk_sz, alcu_flgs); - STAT_MBC_BLK_ALLOC(allctr, blk_sz, alcu_flgs); - + ERTS_ALC_CPOOL_REALLOC_OP(allctr); + STAT_MBC_BLK_FREE(allctr, crr, NULL, old_blk_sz, alcu_flgs); + STAT_MBC_BLK_ALLOC(allctr, crr, blk_sz, alcu_flgs); ASSERT(IS_ALLOCED_BLK(blk)); - ASSERT(blk_sz == BLK_SZ(blk)); + ASSERT(blk_sz == MBC_BLK_SZ(blk)); ASSERT(blk_sz % sizeof(Unit_t) == 0); ASSERT(blk_sz >= allctr->min_block_size); ASSERT(blk_sz >= size + ABLK_HDR_SZ); ASSERT(IS_MBC_BLK(blk)); ASSERT(!nxt_blk || IS_PREV_BLK_ALLOCED(nxt_blk)); - ASSERT(!nxt_blk || nxt_blk_sz == BLK_SZ(nxt_blk)); + ASSERT(!nxt_blk || nxt_blk_sz == MBC_BLK_SZ(nxt_blk)); ASSERT(!nxt_blk || nxt_blk_sz % sizeof(Unit_t) == 0); ASSERT(!nxt_blk || nxt_blk_sz >= allctr->min_block_size); ASSERT(!nxt_blk || IS_MBC_BLK(nxt_blk)); @@ -1696,30 +2438,34 @@ mbc_realloc(Allctr_t *allctr, void *p, Uint size, Uint32 alcu_flgs) /* Need to grow in another block */ - if (!IS_PREV_BLK_FREE(blk) || IS_FIRST_BLK(blk)) { + if (!IS_PREV_BLK_FREE(blk)) { cand_blk = NULL; cand_blk_sz = 0; } else { + ASSERT(!IS_MBC_FIRST_ABLK(allctr, blk)); cand_blk = PREV_BLK(blk); cand_blk_sz = old_blk_sz + PREV_BLK_SZ(blk); if (!is_last_blk) { - nxt_blk = NXT_BLK(blk); + nxt_blk = BLK_AFTER(blk, old_blk_sz); if (IS_FREE_BLK(nxt_blk)) - cand_blk_sz += BLK_SZ(nxt_blk); + cand_blk_sz += MBC_FBLK_SZ(nxt_blk); } } if (cand_blk_sz < get_blk_sz) { /* We wont fit in cand_blk get a new one */ +#ifdef ERTS_SMP + realloc_move: +#endif #endif /* !MBC_REALLOC_ALWAYS_MOVES */ new_p = mbc_alloc(allctr, size); if (!new_p) return NULL; sys_memcpy(new_p, p, MIN(size, old_blk_sz - ABLK_HDR_SZ)); - mbc_free(allctr, p); + mbc_free(allctr, p, busy_pcrr_pp); return new_p; @@ -1732,8 +2478,7 @@ mbc_realloc(Allctr_t *allctr, void *p, Uint size, Uint32 alcu_flgs) new_blk = (*allctr->get_free_block)(allctr, get_blk_sz, cand_blk, - cand_blk_sz, - alcu_flgs); + cand_blk_sz); move_into_new_blk: /* * new_blk, and cand_blk have to be correctly set @@ -1743,17 +2488,18 @@ mbc_realloc(Allctr_t *allctr, void *p, Uint size, Uint32 alcu_flgs) if (new_blk) { mbc_alloc_finalize(allctr, new_blk, - BLK_SZ(new_blk), + MBC_FBLK_SZ(new_blk), GET_BLK_HDR_FLGS(new_blk), + FBLK_TO_MBC(new_blk), blk_sz, - 1, - alcu_flgs); + 1); new_p = BLK2UMEM(new_blk); sys_memcpy(new_p, p, MIN(size, old_blk_sz - ABLK_HDR_SZ)); - mbc_free(allctr, p); + mbc_free(allctr, p, NULL); return new_p; } else { + Carrier_t* crr; Uint new_blk_sz; UWord new_blk_flgs; Uint prev_blk_sz; @@ -1769,16 +2515,16 @@ mbc_realloc(Allctr_t *allctr, void *p, Uint size, Uint32 alcu_flgs) HARD_CHECK_BLK_CARRIER(allctr, blk); - (*allctr->unlink_free_block)(allctr, new_blk, alcu_flgs); /* prev */ + (*allctr->unlink_free_block)(allctr, new_blk); /* prev */ if (is_last_blk) new_blk_flgs |= LAST_BLK_HDR_FLG; else { - nxt_blk = NXT_BLK(blk); + nxt_blk = BLK_AFTER(blk, old_blk_sz); if (IS_FREE_BLK(nxt_blk)) { new_blk_flgs |= GET_LAST_BLK_HDR_FLG(nxt_blk); - new_blk_sz += BLK_SZ(nxt_blk); - (*allctr->unlink_free_block)(allctr, nxt_blk, alcu_flgs); + new_blk_sz += MBC_FBLK_SZ(nxt_blk); + (*allctr->unlink_free_block)(allctr, nxt_blk); } } @@ -1790,6 +2536,7 @@ mbc_realloc(Allctr_t *allctr, void *p, Uint size, Uint32 alcu_flgs) new_p = BLK2UMEM(new_blk); blk_cpy_sz = MIN(blk_sz, old_blk_sz); + crr = FBLK_TO_MBC(new_blk); if (prev_blk_sz >= blk_cpy_sz) sys_memcpy(new_p, p, blk_cpy_sz - ABLK_HDR_SZ); @@ -1800,11 +2547,12 @@ mbc_realloc(Allctr_t *allctr, void *p, Uint size, Uint32 alcu_flgs) new_blk, new_blk_sz, new_blk_flgs, + crr, blk_sz, - 0, - alcu_flgs); + 0); - STAT_MBC_BLK_FREE(allctr, old_blk_sz, alcu_flgs); + ERTS_ALC_CPOOL_FREE_OP(allctr); + STAT_MBC_BLK_FREE(allctr, crr, NULL, old_blk_sz, alcu_flgs); return new_p; } @@ -1812,138 +2560,691 @@ mbc_realloc(Allctr_t *allctr, void *p, Uint size, Uint32 alcu_flgs) #endif /* !MBC_REALLOC_ALWAYS_MOVES */ } -#ifdef DEBUG +#ifdef ERTS_SMP -#if HAVE_ERTS_MSEG -#define ASSERT_MSEG_UNIT_SIZE_MULTIPLE(CSZ) ASSERT((CSZ) % mseg_unit_size == 0) -#else -#define ASSERT_MSEG_UNIT_SIZE_MULTIPLE(CSZ) -#endif +#define ERTS_ALC_MAX_DEALLOC_CARRIER 10 +#define ERTS_ALC_CPOOL_MAX_FETCH_INSPECT 10 +#define ERTS_ALC_CPOOL_CHECK_LIMIT_COUNT 100 +#define ERTS_ALC_CPOOL_MAX_NO_CARRIERS 5 +#define ERTS_ALC_CPOOL_INSERT_ALLOWED_OFFSET 100 +#define ERTS_ALC_CPOOL_MAX_FAILED_STAT_READS 3 -#define CHECK_1BLK_CARRIER(A, SBC, MSEGED, C, CSZ, B, BSZ) \ -do { \ - ASSERT(IS_FIRST_BLK((B))); \ - ASSERT(IS_LAST_BLK((B))); \ - ASSERT((CSZ) == CARRIER_SZ((C))); \ - ASSERT((BSZ) == BLK_SZ((B))); \ - ASSERT((BSZ) % sizeof(Unit_t) == 0); \ - if ((SBC)) { \ - ASSERT(IS_SBC_BLK((B))); \ - ASSERT(IS_SB_CARRIER((C))); \ - } \ - else { \ - ASSERT(IS_MBC_BLK((B))); \ - ASSERT(IS_MB_CARRIER((C))); \ - } \ - if ((MSEGED)) { \ - ASSERT(IS_MSEG_CARRIER((C))); \ - ASSERT_MSEG_UNIT_SIZE_MULTIPLE((CSZ)); \ - } \ - else { \ - ASSERT(IS_SYS_ALLOC_CARRIER((C))); \ - ASSERT((CSZ) % sizeof(Unit_t) == 0); \ - } \ -} while (0) +#define ERTS_ALC_CPOOL_PTR_MOD_MRK (((erts_aint_t) 1) << 0) +#define ERTS_ALC_CPOOL_PTR_DEL_MRK (((erts_aint_t) 1) << 1) -#else -#define CHECK_1BLK_CARRIER(A, SBC, MSEGED, C, CSZ, B, BSZ) +#define ERTS_ALC_CPOOL_PTR_MRKS \ + (ERTS_ALC_CPOOL_PTR_MOD_MRK | ERTS_ALC_CPOOL_PTR_DEL_MRK) + +/* + * When setting multiple mod markers we always + * set mod markers in pointer order and always + * on next pointers before prev pointers. + */ + +typedef union { + ErtsAlcCPoolData_t sentinel; + char align__[ERTS_ALC_CACHE_LINE_ALIGN_SIZE(sizeof(ErtsAlcCPoolData_t))]; +} ErtsAlcCrrPool_t; + +#if ERTS_ALC_A_INVALID != 0 +# error "Carrier pool implementation assumes ERTS_ALC_A_INVALID == 0" +#endif +#if ERTS_ALC_A_MIN <= ERTS_ALC_A_INVALID +# error "Carrier pool implementation assumes ERTS_ALC_A_MIN > ERTS_ALC_A_INVALID" #endif -static Block_t * -create_sbmbc(Allctr_t *allctr, Uint umem_sz) +/* + * The pool is only allowed to be manipulated by managed + * threads except in the alloc_SUITE:cpool case. In this + * test case carrier_pool[ERTS_ALC_A_INVALID] will be + * used. + */ + +static ErtsAlcCrrPool_t carrier_pool[ERTS_ALC_A_MAX+1] erts_align_attribute(ERTS_CACHE_LINE_SIZE); + +#define ERTS_ALC_CPOOL_MAX_BACKOFF (1 << 8) + +static int +backoff(int n) { - Block_t *blk; - Uint blk_sz; - Uint crr_sz = allctr->sbmbc_size; - Carrier_t *crr; + int i; -#if HALFWORD_HEAP - if (allctr->mseg_opt.low_mem) - crr = erts_alloc(ERTS_ALC_T_SBMBC_LOW, crr_sz); + for (i = 0; i < n; i++) + ERTS_SPIN_BODY; + + if (n >= ERTS_ALC_CPOOL_MAX_BACKOFF) + return ERTS_ALC_CPOOL_MAX_BACKOFF; else -#endif - crr = erts_alloc(ERTS_ALC_T_SBMBC, crr_sz); + return n << 1; +} - INC_CC(allctr->calls.sbmbc_alloc); - SET_CARRIER_HDR(crr, crr_sz, SCH_SYS_ALLOC|SCH_MBC); +static int +cpool_dbg_is_in_pool(Allctr_t *allctr, Carrier_t *crr) +{ + ErtsAlcCPoolData_t *sentinel = &carrier_pool[allctr->alloc_no].sentinel; + ErtsAlcCPoolData_t *cpdp = sentinel; + Carrier_t *tmp_crr; - blk = MBC2FBLK(allctr, crr); + while (1) { + cpdp = (ErtsAlcCPoolData_t *) (erts_atomic_read_ddrb(&cpdp->next) & ~FLG_MASK); + if (cpdp == sentinel) + return 0; + tmp_crr = (Carrier_t *) (((char *) cpdp) - offsetof(Carrier_t, cpool)); + if (tmp_crr == crr) + return 1; + } +} -#ifdef ERTS_ALLOC_UTIL_HARD_DEBUG - if (allctr->mbc_header_size % sizeof(Unit_t) == 0) - crr_sz -= sizeof(UWord); -#endif +static int +cpool_is_empty(Allctr_t *allctr) +{ + ErtsAlcCPoolData_t *sentinel = &carrier_pool[allctr->alloc_no].sentinel; + return ((erts_atomic_read_rb(&sentinel->next) == (erts_aint_t) sentinel) + && (erts_atomic_read_rb(&sentinel->prev) == (erts_aint_t) sentinel)); +} - blk_sz = UNIT_FLOOR(crr_sz - allctr->mbc_header_size); +static ERTS_INLINE ErtsAlcCPoolData_t * +cpool_aint2cpd(erts_aint_t aint) +{ + return (ErtsAlcCPoolData_t *) (aint & ~ERTS_ALC_CPOOL_PTR_MRKS); +} - SET_MBC_BLK_FTR(((UWord *) blk)[-1]); - SET_BLK_HDR(blk, blk_sz, SBH_THIS_FREE|SBH_PREV_FREE|SBH_LAST_BLK); +static ERTS_INLINE erts_aint_t +cpool_read(erts_atomic_t *aptr) +{ + return erts_atomic_read_acqb(aptr); +} -#ifdef ERTS_ALLOC_UTIL_HARD_DEBUG - *((Carrier_t **) NXT_BLK(blk)) = crr; +static ERTS_INLINE void +cpool_init(erts_atomic_t *aptr, erts_aint_t val) +{ + erts_atomic_set_nob(aptr, val); +} + +static ERTS_INLINE void +cpool_set_mod_marked(erts_atomic_t *aptr, erts_aint_t new, erts_aint_t old) +{ +#ifdef ERTS_ALC_CPOOL_DEBUG + erts_aint_t act = erts_atomic_xchg_relb(aptr, new); + ERTS_ALC_CPOOL_ASSERT(act == (old | ERTS_ALC_CPOOL_PTR_MOD_MRK)); +#else + erts_atomic_set_relb(aptr, new); #endif +} - link_carrier(&allctr->sbmbc_list, crr); -#ifdef ERTS_ALLOC_UTIL_HARD_DEBUG - if (allctr->mbc_header_size % sizeof(Unit_t) == 0) - crr_sz += sizeof(UWord); -#endif +static ERTS_INLINE erts_aint_t +cpool_try_mod_mark_exp(erts_atomic_t *aptr, erts_aint_t exp) +{ + ERTS_ALC_CPOOL_ASSERT((exp & ERTS_ALC_CPOOL_PTR_MOD_MRK) == 0); + return erts_atomic_cmpxchg_nob(aptr, exp | ERTS_ALC_CPOOL_PTR_MOD_MRK, exp); +} - STAT_SBMBC_ALLOC(allctr, crr_sz); - CHECK_1BLK_CARRIER(allctr, 0, 0, crr, crr_sz, blk, blk_sz); -#ifdef ERTS_ALLOC_UTIL_HARD_DEBUG - if (allctr->mbc_header_size % sizeof(Unit_t) == 0) - crr_sz -= sizeof(UWord); -#endif - if (allctr->creating_mbc) - (*allctr->creating_mbc)(allctr, crr, ERTS_ALCU_FLG_SBMBC); +static ERTS_INLINE erts_aint_t +cpool_mod_mark_exp(erts_atomic_t *aptr, erts_aint_t exp) +{ + int b; + erts_aint_t act; + ERTS_ALC_CPOOL_ASSERT((exp & ERTS_ALC_CPOOL_PTR_MOD_MRK) == 0); + while (1) { + act = erts_atomic_cmpxchg_nob(aptr, + exp | ERTS_ALC_CPOOL_PTR_MOD_MRK, + exp); + if (act == exp) + return exp; + b = 1; + do { + if ((act & ~ERTS_ALC_CPOOL_PTR_MOD_MRK) != exp) + return act; + b = backoff(b); + act = erts_atomic_read_nob(aptr); + } while (act != exp); + } +} - DEBUG_SAVE_ALIGNMENT(crr); - return blk; +static ERTS_INLINE erts_aint_t +cpool_mod_mark(erts_atomic_t *aptr) +{ + int b; + erts_aint_t act, exp; + act = cpool_read(aptr); + while (1) { + b = 1; + while (act & ERTS_ALC_CPOOL_PTR_MOD_MRK) { + b = backoff(b); + act = erts_atomic_read_nob(aptr); + } + exp = act; + act = erts_atomic_cmpxchg_acqb(aptr, + exp | ERTS_ALC_CPOOL_PTR_MOD_MRK, + exp); + if (act == exp) + return exp; + } } static void -destroy_sbmbc(Allctr_t *allctr, Block_t *blk) +cpool_insert(Allctr_t *allctr, Carrier_t *crr) { - Uint crr_sz; - Carrier_t *crr; + ErtsAlcCPoolData_t *cpd1p, *cpd2p; + erts_aint_t val; + ErtsAlcCPoolData_t *sentinel = &carrier_pool[allctr->alloc_no].sentinel; - ASSERT(IS_FIRST_BLK(blk)); + ERTS_ALC_CPOOL_ASSERT(allctr->alloc_no == ERTS_ALC_A_INVALID /* testcase */ + || erts_thr_progress_is_managed_thread()); + ERTS_ALC_CPOOL_ASSERT(erts_smp_atomic_read_nob(&crr->allctr) + == (erts_aint_t) allctr); - ASSERT(IS_MBC_BLK(blk)); + erts_atomic_add_nob(&allctr->cpool.stat.blocks_size, + (erts_aint_t) crr->cpool.blocks_size); + erts_atomic_add_nob(&allctr->cpool.stat.no_blocks, + (erts_aint_t) crr->cpool.blocks); + erts_atomic_add_nob(&allctr->cpool.stat.carriers_size, + (erts_aint_t) CARRIER_SZ(crr)); + erts_atomic_inc_nob(&allctr->cpool.stat.no_carriers); - crr = FBLK2MBC(allctr, blk); - crr_sz = CARRIER_SZ(crr); + erts_smp_atomic_set_nob(&crr->allctr, + ((erts_aint_t) allctr)|ERTS_CRR_ALCTR_FLG_IN_POOL); -#ifdef DEBUG - if (!allctr->stopped) { - ASSERT(IS_LAST_BLK(blk)); + /* + * We search in 'next' direction and begin by passing + * one element before trying to insert. This in order to + * avoid contention with threads fetching elements. + */ -#ifdef ERTS_ALLOC_UTIL_HARD_DEBUG - (*allctr->link_free_block)(allctr, blk, ERTS_ALCU_FLG_SBMBC); - HARD_CHECK_BLK_CARRIER(allctr, blk); - (*allctr->unlink_free_block)(allctr, blk, ERTS_ALCU_FLG_SBMBC); + val = cpool_read(&sentinel->next); + + /* Find a predecessor to be, and set mod marker on its next ptr */ + + while (1) { + cpd1p = cpool_aint2cpd(val); + if (cpd1p == sentinel) { + val = cpool_mod_mark(&cpd1p->next); + break; + } + val = cpool_read(&cpd1p->next); + if (!(val & ERTS_ALC_CPOOL_PTR_MRKS)) { + erts_aint_t tmp = cpool_try_mod_mark_exp(&cpd1p->next, val); + if (tmp == val) { + val = tmp; + break; + } + val = tmp; + } + } + + /* Set mod marker on prev ptr of the to be successor */ + + cpd2p = cpool_aint2cpd(val); + + cpool_init(&crr->cpool.next, (erts_aint_t) cpd2p); + cpool_init(&crr->cpool.prev, (erts_aint_t) cpd1p); + + val = (erts_aint_t) cpd1p; + + while (1) { + int b; + erts_aint_t tmp; + + tmp = cpool_mod_mark_exp(&cpd2p->prev, val); + if (tmp == val) + break; + b = 1; + do { + b = backoff(b); + tmp = cpool_read(&cpd2p->prev); + } while (tmp != val); + } + + /* Write pointers to this element in successor and predecessor */ + + cpool_set_mod_marked(&cpd1p->next, + (erts_aint_t) &crr->cpool, + (erts_aint_t) cpd2p); + cpool_set_mod_marked(&cpd2p->prev, + (erts_aint_t) &crr->cpool, + (erts_aint_t) cpd1p); +} + +static void +cpool_delete(Allctr_t *allctr, Allctr_t *prev_allctr, Carrier_t *crr) +{ + ErtsAlcCPoolData_t *cpd1p, *cpd2p; + erts_aint_t val; +#ifdef ERTS_ALC_CPOOL_DEBUG + ErtsAlcCPoolData_t *sentinel = &carrier_pool[allctr->alloc_no].sentinel; #endif + + ERTS_ALC_CPOOL_ASSERT(allctr->alloc_no == ERTS_ALC_A_INVALID /* testcase */ + || erts_thr_progress_is_managed_thread()); + ERTS_ALC_CPOOL_ASSERT(sentinel != &crr->cpool); + + /* Set mod marker on next ptr of our predecessor */ + + val = (erts_aint_t) &crr->cpool; + while (1) { + erts_aint_t tmp; + cpd1p = cpool_aint2cpd(cpool_read(&crr->cpool.prev)); + tmp = cpool_mod_mark_exp(&cpd1p->next, val); + if (tmp == val) + break; } + + /* Set mod marker on our next ptr */ + + val = cpool_mod_mark(&crr->cpool.next); + + /* Set mod marker on the prev ptr of our successor */ + + cpd2p = cpool_aint2cpd(val); + + val = (erts_aint_t) &crr->cpool; + + while (1) { + int b; + erts_aint_t tmp; + + tmp = cpool_mod_mark_exp(&cpd2p->prev, val); + if (tmp == val) + break; + b = 1; + do { + b = backoff(b); + tmp = cpool_read(&cpd2p->prev); + } while (tmp != val); + } + + /* Set mod marker on our prev ptr */ + + val = (erts_aint_t) cpd1p; + + while (1) { + int b; + erts_aint_t tmp; + + tmp = cpool_mod_mark_exp(&crr->cpool.prev, val); + if (tmp == val) + break; + b = 1; + do { + b = backoff(b); + tmp = cpool_read(&cpd2p->prev); + } while (tmp != val); + } + + /* Write pointers past this element in predecessor and successor */ + + cpool_set_mod_marked(&cpd1p->next, + (erts_aint_t) cpd2p, + (erts_aint_t) &crr->cpool); + cpool_set_mod_marked(&cpd2p->prev, + (erts_aint_t) cpd1p, + (erts_aint_t) &crr->cpool); + + /* Repleace mod markers with delete markers on this element */ + cpool_set_mod_marked(&crr->cpool.next, + ((erts_aint_t) cpd2p) | ERTS_ALC_CPOOL_PTR_DEL_MRK, + ((erts_aint_t) cpd2p) | ERTS_ALC_CPOOL_PTR_MOD_MRK); + cpool_set_mod_marked(&crr->cpool.prev, + ((erts_aint_t) cpd1p) | ERTS_ALC_CPOOL_PTR_DEL_MRK, + ((erts_aint_t) cpd1p) | ERTS_ALC_CPOOL_PTR_MOD_MRK); + + crr->cpool.thr_prgr = erts_thr_progress_later(NULL); + + erts_atomic_add_nob(&prev_allctr->cpool.stat.blocks_size, + -((erts_aint_t) crr->cpool.blocks_size)); + erts_atomic_add_nob(&prev_allctr->cpool.stat.no_blocks, + -((erts_aint_t) crr->cpool.blocks)); + erts_atomic_add_nob(&prev_allctr->cpool.stat.carriers_size, + -((erts_aint_t) CARRIER_SZ(crr))); + erts_atomic_dec_wb(&prev_allctr->cpool.stat.no_carriers); + +} + +static Carrier_t * +cpool_fetch(Allctr_t *allctr, UWord size) +{ + int i; + Carrier_t *crr; + ErtsAlcCPoolData_t *cpdp; + ErtsAlcCPoolData_t *sentinel = &carrier_pool[allctr->alloc_no].sentinel; + + ERTS_ALC_CPOOL_ASSERT(allctr->alloc_no == ERTS_ALC_A_INVALID /* testcase */ + || erts_thr_progress_is_managed_thread()); + + i = 0; + + /* First; check our own pending dealloc carrier list... */ + crr = allctr->cpool.dc_list.last; + while (crr && i < ERTS_ALC_CPOOL_MAX_FETCH_INSPECT) { + if (erts_atomic_read_nob(&crr->cpool.max_size) >= size) { + unlink_carrier(&allctr->cpool.dc_list, crr); +#ifdef ERTS_ALC_CPOOL_DEBUG + ERTS_ALC_CPOOL_ASSERT(erts_smp_atomic_xchg_nob(&crr->allctr, + ((erts_aint_t) allctr)) + == (((erts_aint_t) allctr) & ~ERTS_CRR_ALCTR_FLG_MASK)); +#else + erts_smp_atomic_set_nob(&crr->allctr, ((erts_aint_t) allctr)); #endif + return crr; + } + crr = crr->prev; + i++; + } - STAT_SBMBC_FREE(allctr, crr_sz); + /* ... then the pool ... */ - unlink_carrier(&allctr->sbmbc_list, crr); - if (allctr->destroying_mbc) - (*allctr->destroying_mbc)(allctr, crr, ERTS_ALCU_FLG_SBMBC); + /* + * We search in 'prev' direction and begin by passing + * one element before trying to fetch. This in order to + * avoid contention with threads inserting elements. + */ - INC_CC(allctr->calls.sbmbc_free); + cpdp = cpool_aint2cpd(cpool_read(&sentinel->prev)); + if (cpdp == sentinel) + return NULL; -#if HALFWORD_HEAP - if (allctr->mseg_opt.low_mem) - erts_free(ERTS_ALC_T_SBMBC_LOW, crr); + while (i < ERTS_ALC_CPOOL_MAX_FETCH_INSPECT) { + erts_aint_t exp; + cpdp = cpool_aint2cpd(cpool_read(&cpdp->prev)); + if (cpdp == sentinel) { + cpdp = cpool_aint2cpd(cpool_read(&cpdp->prev)); + if (cpdp == sentinel) + return NULL; + i = ERTS_ALC_CPOOL_MAX_FETCH_INSPECT; /* Last one to inspect */ + } + crr = (Carrier_t *) (((char *) cpdp) - offsetof(Carrier_t, cpool)); + exp = erts_smp_atomic_read_rb(&crr->allctr); + if (((exp & (ERTS_CRR_ALCTR_FLG_IN_POOL|ERTS_CRR_ALCTR_FLG_BUSY)) + == ERTS_CRR_ALCTR_FLG_IN_POOL) + && (erts_atomic_read_nob(&cpdp->max_size) >= size)) { + erts_aint_t act; + /* Try to fetch it... */ + act = erts_smp_atomic_cmpxchg_mb(&crr->allctr, + (erts_aint_t) allctr, + exp); + if (act == exp) { + cpool_delete(allctr, ((Allctr_t *) (act & ~ERTS_CRR_ALCTR_FLG_MASK)), crr); + return crr; + } + } + i++; + } + return NULL; +} + +static void +check_pending_dealloc_carrier(Allctr_t *allctr, + int *need_thr_progress, + ErtsThrPrgrVal *thr_prgr_p, + int *need_more_work) +{ + Carrier_t *crr = allctr->cpool.dc_list.first; + + if (crr) { + ErtsThrPrgrVal current = erts_thr_progress_current(); + int i = 0; + + do { + Carrier_t *dcrr; + + if (!erts_thr_progress_has_reached_this(current, crr->cpool.thr_prgr)) + break; + + dcrr = crr; + crr = crr->next; + dealloc_carrier(allctr, dcrr, 1); + i++; + } while (crr && i < ERTS_ALC_MAX_DEALLOC_CARRIER); + + allctr->cpool.dc_list.first = crr; + if (!crr) + allctr->cpool.dc_list.last = NULL; + else { + crr->prev = NULL; + + if (need_more_work) { + ERTS_ALC_CPOOL_ASSERT(need_thr_progress && thr_prgr_p); + if (erts_thr_progress_has_reached_this(current, crr->cpool.thr_prgr)) + *need_more_work = 1; + else { + *need_thr_progress = 1; + if (*thr_prgr_p == ERTS_THR_PRGR_INVALID + || erts_thr_progress_cmp(crr->cpool.thr_prgr, + *thr_prgr_p) < 0) { + *thr_prgr_p = crr->cpool.thr_prgr; + } + } + } + } + } +} + +static void +schedule_dealloc_carrier(Allctr_t *allctr, Carrier_t *crr) +{ + Allctr_t *orig_allctr; + int check_pending_dealloc; + erts_aint_t max_size; + + if (!ERTS_ALC_IS_CPOOL_ENABLED(allctr)) { + dealloc_carrier(allctr, crr, 1); + return; + } + + orig_allctr = crr->cpool.orig_allctr; + + if (allctr != orig_allctr) { + Block_t *blk = MBC_TO_FIRST_BLK(allctr, crr); + int cinit = orig_allctr->dd.ix - allctr->dd.ix; + + /* + * We send the carrier to its origin for deallocation. + * This in order: + * - not to complicate things for the thread specific + * instances of mseg_alloc, and + * - to ensure that we always only reuse empty carriers + * originating from our own thread specific mseg_alloc + * instance which is beneficial on NUMA systems. + * + * The receiver will recognize that this is a carrier to + * deallocate (and not a block which is the common case) + * since the block is an mbc block that is free and last + * in the carrier. + */ + ERTS_ALC_CPOOL_ASSERT(IS_FREE_LAST_MBC_BLK(blk)); + + ERTS_ALC_CPOOL_ASSERT(IS_MBC_FIRST_ABLK(allctr, blk)); + ERTS_ALC_CPOOL_ASSERT(crr == FBLK_TO_MBC(blk)); + ERTS_ALC_CPOOL_ASSERT(crr == FIRST_BLK_TO_MBC(allctr, blk)); + ERTS_ALC_CPOOL_ASSERT(((erts_aint_t) allctr) + == (erts_smp_atomic_read_nob(&crr->allctr) + & ~ERTS_CRR_ALCTR_FLG_MASK)); + + if (ddq_enqueue(&orig_allctr->dd.q, BLK2UMEM(blk), cinit)) + erts_alloc_notify_delayed_dealloc(orig_allctr->ix); + return; + } + + if (crr->cpool.thr_prgr == ERTS_THR_PRGR_INVALID + || erts_thr_progress_has_reached(crr->cpool.thr_prgr)) { + dealloc_carrier(allctr, crr, 1); + return; + } + + max_size = (erts_aint_t) allctr->largest_fblk_in_mbc(allctr, crr); + erts_atomic_set_nob(&crr->cpool.max_size, max_size); + + crr->next = NULL; + crr->prev = allctr->cpool.dc_list.last; + if (allctr->cpool.dc_list.last) { + check_pending_dealloc = 1; + allctr->cpool.dc_list.last->next = crr; + } + else { + check_pending_dealloc = 0; + allctr->cpool.dc_list.first = crr; + } + allctr->cpool.dc_list.last = crr; + if (check_pending_dealloc) + check_pending_dealloc_carrier(allctr, NULL, NULL, NULL); + erts_alloc_ensure_handle_delayed_dealloc_call(allctr->ix); +} + +static ERTS_INLINE void +cpool_init_carrier_data(Allctr_t *allctr, Carrier_t *crr) +{ + erts_atomic_init_nob(&crr->cpool.next, ERTS_AINT_NULL); + erts_atomic_init_nob(&crr->cpool.prev, ERTS_AINT_NULL); + crr->cpool.orig_allctr = allctr; + crr->cpool.thr_prgr = ERTS_THR_PRGR_INVALID; + erts_atomic_init_nob(&crr->cpool.max_size, 0); + crr->cpool.blocks = 0; + crr->cpool.blocks_size = 0; + if (!ERTS_ALC_IS_CPOOL_ENABLED(allctr)) + crr->cpool.abandon_limit = 0; + else { + UWord csz = CARRIER_SZ(crr); + UWord limit = csz*allctr->cpool.util_limit; + if (limit > csz) + limit /= 100; + else + limit = (csz/100)*allctr->cpool.util_limit; + crr->cpool.abandon_limit = limit; + } +} + +static void +set_new_allctr_abandon_limit(Allctr_t *allctr) +{ + UWord limit; + UWord csz; + + allctr->cpool.check_limit_count = ERTS_ALC_CPOOL_CHECK_LIMIT_COUNT; + + csz = allctr->mbcs.curr.norm.mseg.size; + csz += allctr->mbcs.curr.norm.sys_alloc.size; + + limit = csz*allctr->cpool.util_limit; + if (limit > csz) + limit /= 100; else + limit = (csz/100)*allctr->cpool.util_limit; + + allctr->cpool.abandon_limit = limit; +} + +static void +abandon_carrier(Allctr_t *allctr, Carrier_t *crr) +{ + erts_aint_t max_size; + + STAT_MBC_CPOOL_INSERT(allctr, crr); + + unlink_carrier(&allctr->mbc_list, crr); + + allctr->remove_mbc(allctr, crr); + + max_size = (erts_aint_t) allctr->largest_fblk_in_mbc(allctr, crr); + erts_atomic_set_nob(&crr->cpool.max_size, max_size); + + cpool_insert(allctr, crr); + + set_new_allctr_abandon_limit(allctr); +} + +static void +cpool_read_stat(Allctr_t *allctr, UWord *nocp, UWord *cszp, UWord *nobp, UWord *bszp) +{ + int i; + UWord noc = 0, csz = 0, nob = 0, bsz = 0; + + /* + * We try to get consistent values, but after + * ERTS_ALC_CPOOL_MAX_FAILED_STAT_READS failed + * tries we give up and present what we got... + */ + for (i = 0; i <= ERTS_ALC_CPOOL_MAX_FAILED_STAT_READS; i++) { + UWord tnoc, tcsz, tnob, tbsz; + + tnoc = (UWord) (nocp + ? erts_atomic_read_nob(&allctr->cpool.stat.no_carriers) + : 0); + tcsz = (UWord) (cszp + ? erts_atomic_read_nob(&allctr->cpool.stat.carriers_size) + : 0); + tnob = (UWord) (nobp + ? erts_atomic_read_nob(&allctr->cpool.stat.no_blocks) + : 0); + tbsz = (UWord) (bszp + ? erts_atomic_read_nob(&allctr->cpool.stat.blocks_size) + : 0); + if (tnoc == noc && tcsz == csz && tnob == nob && tbsz == bsz) + break; + noc = tnoc; + csz = tcsz; + nob = tnob; + bsz = tbsz; + ERTS_THR_READ_MEMORY_BARRIER; + } + + if (nocp) + *nocp = noc; + if (cszp) + *cszp = csz; + if (nobp) + *nobp = nob; + if (bszp) + *bszp = bsz; +} + + +#endif /* ERTS_SMP */ + +#ifdef DEBUG + +#if ERTS_SA_MB_CARRIERS +#define ASSERT_ERTS_SACRR_UNIT_SIZE_MULTIPLE(CSZ) ASSERT((CSZ) % ERTS_SACRR_UNIT_SZ == 0) +#else +#define ASSERT_ERTS_SACRR_UNIT_SIZE_MULTIPLE(CSZ) #endif - erts_free(ERTS_ALC_T_SBMBC, crr); + +static void CHECK_1BLK_CARRIER(Allctr_t* A, int SBC, int MSEGED, Carrier_t* C, + UWord CSZ, Block_t* B, UWord BSZ) +{ + ASSERT(IS_LAST_BLK((B))); + ASSERT((CSZ) == CARRIER_SZ((C))); + ASSERT((BSZ) % sizeof(Unit_t) == 0); + if ((SBC)) { + ASSERT((BSZ) == SBC_BLK_SZ((B))); + ASSERT((char*)B == (char*)C + SBC_HEADER_SIZE); + ASSERT(IS_SBC_BLK((B))); + ASSERT(IS_SB_CARRIER((C))); + } + else { + ASSERT(IS_FREE_BLK(B)); + ASSERT((BSZ) == MBC_FBLK_SZ((B))); + ASSERT(IS_MBC_FIRST_FBLK(A, (B))); + ASSERT(IS_MBC_BLK((B))); + ASSERT(IS_MB_CARRIER((C))); + ASSERT(FBLK_TO_MBC(B) == (C)); + if ((MSEGED)) { + ASSERT_ERTS_SACRR_UNIT_SIZE_MULTIPLE((CSZ)); + } + } + if ((MSEGED)) { + ASSERT(IS_MSEG_CARRIER((C))); + } + else { + ASSERT(IS_SYS_ALLOC_CARRIER((C))); + ASSERT((CSZ) % sizeof(Unit_t) == 0); + } } +#else +#define CHECK_1BLK_CARRIER(A, SBC, MSEGED, C, CSZ, B, BSZ) +#endif + static Block_t * create_carrier(Allctr_t *allctr, Uint umem_sz, UWord flags) { @@ -1952,16 +3253,56 @@ create_carrier(Allctr_t *allctr, Uint umem_sz, UWord flags) Uint blk_sz, bcrr_sz, crr_sz; #if HAVE_ERTS_MSEG int have_tried_sys_alloc = 0, have_tried_mseg = 0; + Uint mseg_flags; #endif #ifdef DEBUG int is_mseg = 0; #endif + if (HALFWORD_HEAP + || (ERTS_SUPER_ALIGNED_MSEG_ONLY && (flags & CFLG_MBC)) + || !allow_sys_alloc_carriers) { + flags |= CFLG_FORCE_MSEG; + flags &= ~CFLG_FORCE_SYS_ALLOC; +#if !HAVE_ERTS_MSEG + return NULL; +#endif + } + ASSERT((flags & CFLG_SBC && !(flags & CFLG_MBC)) || (flags & CFLG_MBC && !(flags & CFLG_SBC))); + ASSERT(!(flags & CFLG_FORCE_MSEG && flags & CFLG_FORCE_SYS_ALLOC)); + + if (umem_sz > (ERTS_UINT_MAX - ERTS_UINT_MAX/100)) { + /* Do an overly conservative _overflow_ check here so we don't + * have to deal with it from here on. I guess we could be more accurate + * but I don't think the need to allocate over 99% of the address space + * will ever arise on any machine, neither 32 nor 64 bit. + */ + return NULL; + } + blk_sz = UMEMSZ2BLKSZ(allctr, umem_sz); +#ifdef ERTS_SMP + allctr->cpool.disable_abandon = ERTS_ALC_CPOOL_MAX_DISABLE_ABANDON; + + if ((flags & (CFLG_MBC|CFLG_NO_CPOOL)) == CFLG_MBC + && ERTS_ALC_IS_CPOOL_ENABLED(allctr) + && erts_thr_progress_is_managed_thread()) { + crr = cpool_fetch(allctr, blk_sz); + if (crr) { + STAT_MBC_CPOOL_FETCH(allctr, crr); + link_carrier(&allctr->mbc_list, crr); + (*allctr->add_mbc)(allctr, crr); + blk = (*allctr->get_free_block)(allctr, blk_sz, NULL, 0); + ASSERT(blk); + return blk; + } + } +#endif + #if HAVE_ERTS_MSEG if (flags & CFLG_FORCE_SYS_ALLOC) @@ -1974,29 +3315,27 @@ create_carrier(Allctr_t *allctr, Uint umem_sz, UWord flags) if (allctr->sbcs.curr.norm.mseg.no >= allctr->max_mseg_sbcs) goto try_sys_alloc; } +#if !ERTS_SUPER_ALIGNED_MSEG_ONLY else { if (allctr->mbcs.curr.norm.mseg.no >= allctr->max_mseg_mbcs) goto try_sys_alloc; } +#endif try_mseg: if (flags & CFLG_SBC) { - crr_sz = blk_sz + allctr->sbc_header_size; + crr_sz = blk_sz + SBC_HEADER_SIZE; + mseg_flags = ERTS_MSEG_FLG_NONE; } else { crr_sz = (*allctr->get_next_mbc_size)(allctr); - if (crr_sz < allctr->mbc_header_size + blk_sz) - crr_sz = allctr->mbc_header_size + blk_sz; -#ifdef ERTS_ALLOC_UTIL_HARD_DEBUG - if (allctr->mbc_header_size % sizeof(Unit_t) == 0) - crr_sz += sizeof(UWord); -#endif + if (crr_sz < MBC_HEADER_SIZE(allctr) + blk_sz) + crr_sz = MBC_HEADER_SIZE(allctr) + blk_sz; + mseg_flags = ERTS_MSEG_FLG_2POW; } - crr_sz = MSEG_UNIT_CEILING(crr_sz); - ASSERT(crr_sz % mseg_unit_size == 0); - crr = (Carrier_t *) alcu_mseg_alloc(allctr, &crr_sz); + crr = (Carrier_t *) alcu_mseg_alloc(allctr, &crr_sz, mseg_flags); if (!crr) { have_tried_mseg = 1; if (!(have_tried_sys_alloc || flags & CFLG_FORCE_MSEG)) @@ -2008,44 +3347,43 @@ create_carrier(Allctr_t *allctr, Uint umem_sz, UWord flags) is_mseg = 1; #endif if (flags & CFLG_SBC) { - SET_CARRIER_HDR(crr, crr_sz, SCH_MSEG|SCH_SBC); + SET_CARRIER_HDR(crr, crr_sz, SCH_MSEG|SCH_SBC, allctr); STAT_MSEG_SBC_ALLOC(allctr, crr_sz, blk_sz); goto sbc_final_touch; } else { - SET_CARRIER_HDR(crr, crr_sz, SCH_MSEG|SCH_MBC); +#ifndef ARCH_64 + ASSERT(crr_sz <= MBC_SZ_MAX_LIMIT); +#endif + SET_CARRIER_HDR(crr, crr_sz, SCH_MSEG|SCH_MBC, allctr); STAT_MSEG_MBC_ALLOC(allctr, crr_sz); goto mbc_final_touch; } try_sys_alloc: + #endif /* #if HAVE_ERTS_MSEG */ if (flags & CFLG_SBC) { - bcrr_sz = blk_sz + allctr->sbc_header_size; + bcrr_sz = blk_sz + SBC_HEADER_SIZE; } else { - bcrr_sz = allctr->mbc_header_size + blk_sz; + bcrr_sz = MBC_HEADER_SIZE(allctr) + blk_sz; if (!(flags & CFLG_MAIN_CARRIER) && bcrr_sz < allctr->smallest_mbc_size) bcrr_sz = allctr->smallest_mbc_size; -#ifdef ERTS_ALLOC_UTIL_HARD_DEBUG - if (allctr->mbc_header_size % sizeof(Unit_t) == 0) - bcrr_sz += sizeof(UWord); -#endif - } crr_sz = (flags & CFLG_FORCE_SIZE ? UNIT_CEILING(bcrr_sz) : SYS_ALLOC_CARRIER_CEILING(bcrr_sz)); - crr = (Carrier_t *) alcu_sys_alloc(allctr, crr_sz); + crr = (Carrier_t *) alcu_sys_alloc(allctr, crr_sz, flags & CFLG_MBC); if (!crr) { if (crr_sz > UNIT_CEILING(bcrr_sz)) { crr_sz = UNIT_CEILING(bcrr_sz); - crr = (Carrier_t *) alcu_sys_alloc(allctr, crr_sz); + crr = (Carrier_t *) alcu_sys_alloc(allctr, crr_sz, flags & CFLG_MBC); } if (!crr) { #if HAVE_ERTS_MSEG @@ -2057,7 +3395,7 @@ create_carrier(Allctr_t *allctr, Uint umem_sz, UWord flags) } } if (flags & CFLG_SBC) { - SET_CARRIER_HDR(crr, crr_sz, SCH_SYS_ALLOC|SCH_SBC); + SET_CARRIER_HDR(crr, crr_sz, SCH_SYS_ALLOC|SCH_SBC, allctr); STAT_SYS_ALLOC_SBC_ALLOC(allctr, crr_sz, blk_sz); #if HAVE_ERTS_MSEG @@ -2066,8 +3404,7 @@ create_carrier(Allctr_t *allctr, Uint umem_sz, UWord flags) blk = SBC2BLK(allctr, crr); - SET_SBC_BLK_FTR(((UWord *) blk)[-1]); - SET_BLK_HDR(blk, blk_sz, SBH_THIS_ALLOCED|SBH_PREV_FREE|SBH_LAST_BLK); + SET_SBC_BLK_HDR(blk, blk_sz); link_carrier(&allctr->sbc_list, crr); @@ -2075,47 +3412,33 @@ create_carrier(Allctr_t *allctr, Uint umem_sz, UWord flags) } else { - SET_CARRIER_HDR(crr, crr_sz, SCH_SYS_ALLOC|SCH_MBC); + SET_CARRIER_HDR(crr, crr_sz, SCH_SYS_ALLOC|SCH_MBC, allctr); STAT_SYS_ALLOC_MBC_ALLOC(allctr, crr_sz); #if HAVE_ERTS_MSEG mbc_final_touch: #endif - blk = MBC2FBLK(allctr, crr); - -#ifdef ERTS_ALLOC_UTIL_HARD_DEBUG - if (allctr->mbc_header_size % sizeof(Unit_t) == 0) - crr_sz -= sizeof(UWord); -#endif - - blk_sz = UNIT_FLOOR(crr_sz - allctr->mbc_header_size); + blk = MBC_TO_FIRST_BLK(allctr, crr); - SET_MBC_BLK_FTR(((UWord *) blk)[-1]); - SET_BLK_HDR(blk, blk_sz, SBH_THIS_FREE|SBH_PREV_FREE|SBH_LAST_BLK); + blk_sz = UNIT_FLOOR(crr_sz - MBC_HEADER_SIZE(allctr)); -#ifdef ERTS_ALLOC_UTIL_HARD_DEBUG - *((Carrier_t **) NXT_BLK(blk)) = crr; -#endif + SET_MBC_FBLK_HDR(blk, blk_sz, SBH_THIS_FREE|SBH_LAST_BLK, crr); if (flags & CFLG_MAIN_CARRIER) { ASSERT(!allctr->main_carrier); allctr->main_carrier = crr; } +#ifdef ERTS_SMP + cpool_init_carrier_data(allctr, crr); +#endif + link_carrier(&allctr->mbc_list, crr); -#ifdef ERTS_ALLOC_UTIL_HARD_DEBUG - if (allctr->mbc_header_size % sizeof(Unit_t) == 0) - crr_sz += sizeof(UWord); -#endif CHECK_1BLK_CARRIER(allctr, 0, is_mseg, crr, crr_sz, blk, blk_sz); -#ifdef ERTS_ALLOC_UTIL_HARD_DEBUG - if (allctr->mbc_header_size % sizeof(Unit_t) == 0) - crr_sz -= sizeof(UWord); -#endif if (allctr->creating_mbc) - (*allctr->creating_mbc)(allctr, crr, 0); + (*allctr->creating_mbc)(allctr, crr); } @@ -2142,8 +3465,8 @@ resize_carrier(Allctr_t *allctr, Block_t *old_blk, Uint umem_sz, UWord flags) HARD_CHECK_BLK_CARRIER(allctr, old_blk); - old_blk_sz = BLK_SZ(old_blk); - old_crr = BLK2SBC(allctr, old_blk); + old_blk_sz = SBC_BLK_SZ(old_blk); + old_crr = BLK_TO_SBC(old_blk); old_crr_sz = CARRIER_SZ(old_crr); ASSERT(IS_SB_CARRIER(old_crr)); ASSERT(IS_SBC_BLK(old_blk)); @@ -2157,8 +3480,8 @@ resize_carrier(Allctr_t *allctr, Block_t *old_blk, Uint umem_sz, UWord flags) if (!(flags & CFLG_FORCE_SYS_ALLOC)) { - new_crr_sz = new_blk_sz + allctr->sbc_header_size; - new_crr_sz = MSEG_UNIT_CEILING(new_crr_sz); + new_crr_sz = new_blk_sz + SBC_HEADER_SIZE; + new_crr_sz = ERTS_SACRR_UNIT_CEILING(new_crr_sz); new_crr = (Carrier_t *) alcu_mseg_realloc(allctr, old_crr, old_crr_sz, @@ -2166,7 +3489,7 @@ resize_carrier(Allctr_t *allctr, Block_t *old_blk, Uint umem_sz, UWord flags) if (new_crr) { SET_CARRIER_SZ(new_crr, new_crr_sz); new_blk = SBC2BLK(allctr, new_crr); - SET_BLK_SZ(new_blk, new_blk_sz); + SET_SBC_BLK_SZ(new_blk, new_blk_sz); STAT_MSEG_SBC_ALLOC(allctr, new_crr_sz, new_blk_sz); relink_carrier(&allctr->sbc_list, new_crr); CHECK_1BLK_CARRIER(allctr, 1, 1, new_crr, new_crr_sz, @@ -2174,6 +3497,11 @@ resize_carrier(Allctr_t *allctr, Block_t *old_blk, Uint umem_sz, UWord flags) DEBUG_SAVE_ALIGNMENT(new_crr); return new_blk; } +#if HALFWORD_HEAP + /* Old carrier unchanged; restore stat */ + STAT_MSEG_SBC_ALLOC(allctr, old_crr_sz, old_blk_sz); + return NULL; +#endif create_flags |= CFLG_FORCE_SYS_ALLOC; /* since mseg_realloc() failed */ } @@ -2184,7 +3512,7 @@ resize_carrier(Allctr_t *allctr, Block_t *old_blk, Uint umem_sz, UWord flags) (void *) BLK2UMEM(old_blk), MIN(new_blk_sz, old_blk_sz) - ABLK_HDR_SZ); unlink_carrier(&allctr->sbc_list, old_crr); - alcu_mseg_dealloc(allctr, old_crr, old_crr_sz); + alcu_mseg_dealloc(allctr, old_crr, old_crr_sz, ERTS_MSEG_FLG_NONE); } else { /* Old carrier unchanged; restore stat */ @@ -2196,19 +3524,21 @@ resize_carrier(Allctr_t *allctr, Block_t *old_blk, Uint umem_sz, UWord flags) else { if (!(flags & CFLG_FORCE_MSEG)) { #endif /* #if HAVE_ERTS_MSEG */ - new_bcrr_sz = new_blk_sz + allctr->sbc_header_size; + new_bcrr_sz = new_blk_sz + SBC_HEADER_SIZE; new_crr_sz = (flags & CFLG_FORCE_SIZE ? UNIT_CEILING(new_bcrr_sz) : SYS_ALLOC_CARRIER_CEILING(new_bcrr_sz)); new_crr = (Carrier_t *) alcu_sys_realloc(allctr, (void *) old_crr, - new_crr_sz); + new_crr_sz, + old_crr_sz, + 0); if (new_crr) { sys_realloc_success: SET_CARRIER_SZ(new_crr, new_crr_sz); new_blk = SBC2BLK(allctr, new_crr); - SET_BLK_SZ(new_blk, new_blk_sz); + SET_SBC_BLK_SZ(new_blk, new_blk_sz); STAT_SYS_ALLOC_SBC_FREE(allctr, old_crr_sz, old_blk_sz); STAT_SYS_ALLOC_SBC_ALLOC(allctr, new_crr_sz, new_blk_sz); relink_carrier(&allctr->sbc_list, new_crr); @@ -2218,11 +3548,13 @@ resize_carrier(Allctr_t *allctr, Block_t *old_blk, Uint umem_sz, UWord flags) return new_blk; } else if (new_crr_sz > UNIT_CEILING(new_bcrr_sz)) { - new_crr_sz = new_blk_sz + allctr->sbc_header_size; + new_crr_sz = new_blk_sz + SBC_HEADER_SIZE; new_crr_sz = UNIT_CEILING(new_crr_sz); new_crr = (Carrier_t *) alcu_sys_realloc(allctr, (void *) old_crr, - new_crr_sz); + new_crr_sz, + old_crr_sz, + 0); if (new_crr) goto sys_realloc_success; } @@ -2241,32 +3573,40 @@ resize_carrier(Allctr_t *allctr, Block_t *old_blk, Uint umem_sz, UWord flags) (void *) BLK2UMEM(old_blk), MIN(new_blk_sz, old_blk_sz) - ABLK_HDR_SZ); unlink_carrier(&allctr->sbc_list, old_crr); - alcu_sys_free(allctr, old_crr); + alcu_sys_free(allctr, old_crr, 0); } else { /* Old carrier unchanged; restore... */ STAT_SYS_ALLOC_SBC_ALLOC(allctr, old_crr_sz, old_blk_sz); } - DEBUG_SAVE_ALIGNMENT(new_crr); return new_blk; } #endif } static void -destroy_carrier(Allctr_t *allctr, Block_t *blk) +dealloc_carrier(Allctr_t *allctr, Carrier_t *crr, int superaligned) { - Uint crr_sz; - Carrier_t *crr; #if HAVE_ERTS_MSEG - Uint is_mseg = 0; + if (IS_MSEG_CARRIER(crr)) + alcu_mseg_dealloc(allctr, crr, CARRIER_SZ(crr), + (superaligned + ? ERTS_MSEG_FLG_2POW + : ERTS_MSEG_FLG_NONE)); + else #endif + alcu_sys_free(allctr, crr, superaligned); +} - ASSERT(IS_FIRST_BLK(blk)); +static void +destroy_carrier(Allctr_t *allctr, Block_t *blk, Carrier_t **busy_pcrr_pp) +{ + Uint crr_sz; + Carrier_t *crr; if (IS_SBC_BLK(blk)) { - Uint blk_sz = BLK_SZ(blk); - crr = BLK2SBC(allctr, blk); + Uint blk_sz = SBC_BLK_SZ(blk); + crr = BLK_TO_SBC(blk); crr_sz = CARRIER_SZ(crr); ASSERT(IS_LAST_BLK(blk)); @@ -2275,8 +3615,6 @@ destroy_carrier(Allctr_t *allctr, Block_t *blk) #if HAVE_ERTS_MSEG if (IS_MSEG_CARRIER(crr)) { - is_mseg++; - ASSERT(crr_sz % mseg_unit_size == 0); STAT_MSEG_SBC_FREE(allctr, crr_sz, blk_sz); } else @@ -2285,9 +3623,11 @@ destroy_carrier(Allctr_t *allctr, Block_t *blk) unlink_carrier(&allctr->sbc_list, crr); + dealloc_carrier(allctr, crr, 0); } else { - crr = FBLK2MBC(allctr, blk); + ASSERT(IS_MBC_FIRST_FBLK(allctr, blk)); + crr = FIRST_BLK_TO_MBC(allctr, blk); crr_sz = CARRIER_SZ(crr); #ifdef DEBUG @@ -2302,29 +3642,35 @@ destroy_carrier(Allctr_t *allctr, Block_t *blk) } #endif -#if HAVE_ERTS_MSEG - if (IS_MSEG_CARRIER(crr)) { - is_mseg++; - ASSERT(crr_sz % mseg_unit_size == 0); - STAT_MSEG_MBC_FREE(allctr, crr_sz); + if (allctr->destroying_mbc) + (*allctr->destroying_mbc)(allctr, crr); + +#ifdef ERTS_SMP + if (busy_pcrr_pp && *busy_pcrr_pp) { + ERTS_ALC_CPOOL_ASSERT(*busy_pcrr_pp == crr); + *busy_pcrr_pp = NULL; + cpool_delete(allctr, allctr, crr); } else #endif - STAT_SYS_ALLOC_MBC_FREE(allctr, crr_sz); - - unlink_carrier(&allctr->mbc_list, crr); - if (allctr->destroying_mbc) - (*allctr->destroying_mbc)(allctr, crr, 0); - } - - + { + unlink_carrier(&allctr->mbc_list, crr); #if HAVE_ERTS_MSEG - if (is_mseg) { - alcu_mseg_dealloc(allctr, crr, crr_sz); - } - else + if (IS_MSEG_CARRIER(crr)) { + ASSERT(crr_sz % ERTS_SACRR_UNIT_SZ == 0); + STAT_MSEG_MBC_FREE(allctr, crr_sz); + } + else #endif - alcu_sys_free(allctr, crr); + STAT_SYS_ALLOC_MBC_FREE(allctr, crr_sz); + } + +#ifdef ERTS_SMP + schedule_dealloc_carrier(allctr, crr); +#else + dealloc_carrier(allctr, crr, 1); +#endif + } } @@ -2358,19 +3704,20 @@ static struct { Eterm lmbcs; Eterm smbcs; Eterm mbcgs; - Eterm sbmbcs; - Eterm sbmbct; + Eterm acul; #if HAVE_ERTS_MSEG Eterm mmc; #endif Eterm ycs; - - /* Eterm sbmbcs; */ + Eterm sac; Eterm fix_types; Eterm mbcs; +#ifdef ERTS_SMP + Eterm mbcs_pool; +#endif Eterm sbcs; Eterm sys_alloc_carriers_size; @@ -2395,8 +3742,6 @@ static struct { Eterm mseg_dealloc; Eterm mseg_realloc; #endif - Eterm sbmbc_alloc; - Eterm sbmbc_free; #ifdef DEBUG Eterm end_of_atoms; #endif @@ -2415,12 +3760,6 @@ static erts_mtx_t init_atoms_mtx; static void init_atoms(Allctr_t *allctr) { - -#ifdef USE_THREADS - if (allctr && allctr->thread_safe) - erts_mtx_unlock(&allctr->mutex); -#endif - erts_mtx_lock(&init_atoms_mtx); if (!atoms_initialized) { @@ -2458,19 +3797,20 @@ init_atoms(Allctr_t *allctr) AM_INIT(lmbcs); AM_INIT(smbcs); AM_INIT(mbcgs); - AM_INIT(sbmbcs); - AM_INIT(sbmbct); + AM_INIT(acul); #if HAVE_ERTS_MSEG AM_INIT(mmc); #endif AM_INIT(ycs); - - /*AM_INIT(sbmbcs);*/ + AM_INIT(sac); AM_INIT(fix_types); AM_INIT(mbcs); +#ifdef ERTS_SMP + AM_INIT(mbcs_pool); +#endif AM_INIT(sbcs); AM_INIT(sys_alloc_carriers_size); @@ -2495,8 +3835,6 @@ init_atoms(Allctr_t *allctr) AM_INIT(mseg_dealloc); AM_INIT(mseg_realloc); #endif - AM_INIT(sbmbc_free); - AM_INIT(sbmbc_alloc); #ifdef DEBUG for (atom = (Eterm *) &am; atom < &am.end_of_atoms; atom++) { @@ -2511,18 +3849,13 @@ init_atoms(Allctr_t *allctr) fix_type_atoms[ix] = am_atom_put(name, len); } } - - if (allctr) { + if (allctr && !allctr->atoms_initialized) { make_name_atoms(allctr); (*allctr->init_atoms)(); -#ifdef USE_THREADS - if (allctr->thread_safe) - erts_mtx_lock(&allctr->mutex); -#endif allctr->atoms_initialized = 1; } @@ -2549,19 +3882,22 @@ ensure_atoms_initialized(Allctr_t *allctr) * that would fit a small when size check is done may need to be built * as a big when the actual build is performed. Caller is required to * HRelease after build. + * + * Note, bld_unstable_uint() should have been called bld_unstable_uword() + * but we do not want to rename it... */ static ERTS_INLINE Eterm -bld_unstable_uint(Uint **hpp, Uint *szp, Uint ui) +bld_unstable_uint(Uint **hpp, Uint *szp, UWord ui) { Eterm res = THE_NON_VALUE; if (szp) - *szp += BIG_UINT_HEAP_SIZE; + *szp += BIG_UWORD_HEAP_SIZE(~((UWord) 0)); if (hpp) { if (IS_USMALL(0, ui)) res = make_small(ui); else { - res = uint_to_big(ui, *hpp); - *hpp += BIG_UINT_HEAP_SIZE; + res = uword_to_big(ui, *hpp); + *hpp += BIG_UWORD_HEAP_SIZE(ui); } } return res; @@ -2587,8 +3923,24 @@ add_4tup(Uint **hpp, Uint *szp, Eterm *lp, bld_cons(hpp, szp, bld_tuple(hpp, szp, 4, el1, el2, el3, el4), *lp); } +static ERTS_INLINE void +add_fix_types(Allctr_t *allctr, int internal, Uint **hpp, Uint *szp, + Eterm *lp, Eterm fix) +{ + if (allctr->fix) { + if (!ERTS_ALC_IS_CPOOL_ENABLED(allctr)) + add_2tup(hpp, szp, lp, am.fix_types, fix); + else if (internal) + add_3tup(hpp, szp, lp, + am.fix_types, + erts_bld_uword(hpp, szp, ~((UWord) 0)), + fix); + } +} + static Eterm sz_info_fix(Allctr_t *allctr, + int internal, int *print_to_p, void *print_to_arg, Uint **hpp, @@ -2596,36 +3948,67 @@ sz_info_fix(Allctr_t *allctr, { Eterm res; int ix; - ErtsAlcFixList_t *fix = allctr->fix; - ASSERT(fix); + ASSERT(allctr->fix); res = NIL; - for (ix = ERTS_ALC_NO_FIXED_SIZES-1; ix >= 0; ix--) { - ErtsAlcType_t n = ix + ERTS_ALC_N_MIN_A_FIXED_SIZE; - Uint alloced = (fix[ix].type_size * fix[ix].allocated); - Uint used = fix[ix].type_size*fix[ix].used; - - if (print_to_p) { - int to = *print_to_p; - void *arg = print_to_arg; - erts_print(to, - arg, - "fix type: %s %bpu %bpu\n", - (char *) ERTS_ALC_N2TD(n), - alloced, - used); - } + if (ERTS_ALC_IS_CPOOL_ENABLED(allctr)) { + + if (internal) { + for (ix = ERTS_ALC_NO_FIXED_SIZES-1; ix >= 0; ix--) { + ErtsAlcFixList_t *fix = &allctr->fix[ix]; + UWord alloced = fix->type_size * fix->u.cpool.allocated; + UWord used = fix->type_size * fix->u.cpool.used; + + if (print_to_p) { + int to = *print_to_p; + void *arg = print_to_arg; + erts_print(to, + arg, + "fix type internal: %s %bpu %bpu\n", + (char *) ERTS_ALC_N2TD(ERTS_ALC_N_MIN_A_FIXED_SIZE + + ix), + alloced, + used); + } - if (hpp || szp) { - add_3tup(hpp, szp, &res, - fix_type_atoms[ix], - bld_unstable_uint(hpp, szp, alloced), - bld_unstable_uint(hpp, szp, used)); + if (hpp || szp) { + add_3tup(hpp, szp, &res, + fix_type_atoms[ix], + bld_unstable_uint(hpp, szp, alloced), + bld_unstable_uint(hpp, szp, used)); + } + } } } + else { + for (ix = ERTS_ALC_NO_FIXED_SIZES-1; ix >= 0; ix--) { + ErtsAlcFixList_t *fix = &allctr->fix[ix]; + UWord alloced = fix->type_size * fix->u.nocpool.allocated; + UWord used = fix->type_size*fix->u.nocpool.used; + + if (print_to_p) { + int to = *print_to_p; + void *arg = print_to_arg; + erts_print(to, + arg, + "fix type: %s %bpu %bpu\n", + (char *) ERTS_ALC_N2TD(ERTS_ALC_N_MIN_A_FIXED_SIZE + + ix), + alloced, + used); + } + + if (hpp || szp) { + add_3tup(hpp, szp, &res, + fix_type_atoms[ix], + bld_unstable_uint(hpp, szp, alloced), + bld_unstable_uint(hpp, szp, used)); + } + } + } return res; } @@ -2639,9 +4022,7 @@ sz_info_carriers(Allctr_t *allctr, Uint *szp) { Eterm res = THE_NON_VALUE; - Uint curr_size = (cs == &allctr->sbmbcs - ? cs->curr.small_block.size - : cs->curr.norm.mseg.size + cs->curr.norm.sys_alloc.size); + UWord curr_size = cs->curr.norm.mseg.size + cs->curr.norm.sys_alloc.size; if (print_to_p) { int to = *print_to_p; @@ -2655,7 +4036,7 @@ sz_info_carriers(Allctr_t *allctr, cs->blocks.max_ever.size); erts_print(to, arg, - "%scarriers size: %beu %bpu %bpu\n", + "%scarriers size: %bpu %bpu %bpu\n", prefix, curr_size, cs->max.size, @@ -2679,6 +4060,62 @@ sz_info_carriers(Allctr_t *allctr, return res; } +#ifdef ERTS_SMP + +static Eterm +info_cpool(Allctr_t *allctr, + int sz_only, + char *prefix, + int *print_to_p, + void *print_to_arg, + Uint **hpp, + Uint *szp) +{ + Eterm res = THE_NON_VALUE; + UWord noc, csz, nob, bsz; + + noc = csz = nob = bsz = ~0; + if (print_to_p || hpp) { + if (sz_only) + cpool_read_stat(allctr, NULL, &csz, NULL, &bsz); + else + cpool_read_stat(allctr, &noc, &csz, &nob, &bsz); + } + + if (print_to_p) { + int to = *print_to_p; + void *arg = print_to_arg; + if (!sz_only) + erts_print(to, arg, "%sblocks: %bpu\n", prefix, nob); + erts_print(to, arg, "%sblocks size: %bpu\n", prefix, bsz); + if (!sz_only) + erts_print(to, arg, "%scarriers: %bpu\n", prefix, noc); + erts_print(to, arg, "%scarriers size: %bpu\n", prefix, csz); + } + + if (hpp || szp) { + res = NIL; + add_2tup(hpp, szp, &res, + am.carriers_size, + bld_unstable_uint(hpp, szp, csz)); + if (!sz_only) + add_2tup(hpp, szp, &res, + am.carriers, + bld_unstable_uint(hpp, szp, noc)); + add_2tup(hpp, szp, &res, + am.blocks_size, + bld_unstable_uint(hpp, szp, bsz)); + if (!sz_only) + add_2tup(hpp, szp, &res, + am.blocks, + bld_unstable_uint(hpp, szp, nob)); + } + + return res; +} + +#endif /* ERTS_SMP */ + static Eterm info_carriers(Allctr_t *allctr, CarriersStats_t *cs, @@ -2689,17 +4126,10 @@ info_carriers(Allctr_t *allctr, Uint *szp) { Eterm res = THE_NON_VALUE; - Uint curr_no, curr_size; - int small_block = cs == &allctr->sbmbcs; - - if (small_block) { - curr_no = cs->curr.small_block.no; - curr_size = cs->curr.small_block.size; - } - else { - curr_no = cs->curr.norm.mseg.no + cs->curr.norm.sys_alloc.no; - curr_size = cs->curr.norm.mseg.size + cs->curr.norm.sys_alloc.size; - } + UWord curr_no, curr_size; + + curr_no = cs->curr.norm.mseg.no + cs->curr.norm.sys_alloc.no; + curr_size = cs->curr.norm.mseg.size + cs->curr.norm.sys_alloc.size; if (print_to_p) { int to = *print_to_p; @@ -2720,75 +4150,67 @@ info_carriers(Allctr_t *allctr, cs->blocks.max_ever.size); erts_print(to, arg, - "%scarriers: %beu %bpu %bpu\n", + "%scarriers: %bpu %bpu %bpu\n", prefix, curr_no, cs->max.no, cs->max_ever.no); - if (!small_block) { #if HAVE_ERTS_MSEG - erts_print(to, - arg, - "%smseg carriers: %bpu\n", - prefix, - cs->curr.norm.mseg.no); -#endif - erts_print(to, - arg, - "%ssys_alloc carriers: %bpu\n", - prefix, - cs->curr.norm.sys_alloc.no); - } erts_print(to, arg, - "%scarriers size: %beu %bpu %bpu\n", + "%smseg carriers: %bpu\n", + prefix, + cs->curr.norm.mseg.no); +#endif + erts_print(to, + arg, + "%ssys_alloc carriers: %bpu\n", + prefix, + cs->curr.norm.sys_alloc.no); + erts_print(to, + arg, + "%scarriers size: %bpu %bpu %bpu\n", prefix, curr_size, cs->max.size, cs->max_ever.size); - if (!small_block) { #if HAVE_ERTS_MSEG - erts_print(to, - arg, - "%smseg carriers size: %bpu\n", - prefix, - cs->curr.norm.mseg.size); -#endif - erts_print(to, - arg, - "%ssys_alloc carriers size: %bpu\n", - prefix, - cs->curr.norm.sys_alloc.size); - } + erts_print(to, + arg, + "%smseg carriers size: %bpu\n", + prefix, + cs->curr.norm.mseg.size); +#endif + erts_print(to, + arg, + "%ssys_alloc carriers size: %bpu\n", + prefix, + cs->curr.norm.sys_alloc.size); } if (hpp || szp) { res = NIL; - if (!small_block) { - add_2tup(hpp, szp, &res, - am.sys_alloc_carriers_size, - bld_unstable_uint(hpp, szp, cs->curr.norm.sys_alloc.size)); + add_2tup(hpp, szp, &res, + am.sys_alloc_carriers_size, + bld_unstable_uint(hpp, szp, cs->curr.norm.sys_alloc.size)); #if HAVE_ERTS_MSEG - add_2tup(hpp, szp, &res, - am.mseg_alloc_carriers_size, - bld_unstable_uint(hpp, szp, cs->curr.norm.mseg.size)); + add_2tup(hpp, szp, &res, + am.mseg_alloc_carriers_size, + bld_unstable_uint(hpp, szp, cs->curr.norm.mseg.size)); #endif - } add_4tup(hpp, szp, &res, am.carriers_size, bld_unstable_uint(hpp, szp, curr_size), bld_unstable_uint(hpp, szp, cs->max.size), bld_unstable_uint(hpp, szp, cs->max_ever.size)); - if (!small_block) { - add_2tup(hpp, szp, &res, - am.sys_alloc_carriers, - bld_unstable_uint(hpp, szp, cs->curr.norm.sys_alloc.no)); + add_2tup(hpp, szp, &res, + am.sys_alloc_carriers, + bld_unstable_uint(hpp, szp, cs->curr.norm.sys_alloc.no)); #if HAVE_ERTS_MSEG - add_2tup(hpp, szp, &res, - am.mseg_alloc_carriers, - bld_unstable_uint(hpp, szp, cs->curr.norm.mseg.no)); + add_2tup(hpp, szp, &res, + am.mseg_alloc_carriers, + bld_unstable_uint(hpp, szp, cs->curr.norm.mseg.no)); #endif - } add_4tup(hpp, szp, &res, am.carriers, bld_unstable_uint(hpp, szp, curr_no), @@ -2815,10 +4237,10 @@ make_name_atoms(Allctr_t *allctr) char alloc[] = "alloc"; char realloc[] = "realloc"; char free[] = "free"; - char buf[MAX_ATOM_LENGTH]; + char buf[MAX_ATOM_CHARACTERS]; size_t prefix_len = strlen(allctr->name_prefix); - if (prefix_len > MAX_ATOM_LENGTH + sizeof(realloc) - 1) + if (prefix_len > MAX_ATOM_CHARACTERS + sizeof(realloc) - 1) erl_exit(1,"Too long allocator name: %salloc\n",allctr->name_prefix); memcpy((void *) buf, (void *) allctr->name_prefix, prefix_len); @@ -2847,16 +4269,10 @@ info_calls(Allctr_t *allctr, if (print_to_p) { #define PRINT_CC_4(TO, TOA, NAME, CC) \ - if ((CC).giga_no == 0) \ - erts_print(TO, TOA, "%s calls: %b32u\n", NAME, CC.no); \ - else \ - erts_print(TO, TOA, "%s calls: %b32u%09lu\n", NAME, CC.giga_no, CC.no) + erts_print(TO, TOA, "%s calls: %b64u\n", NAME, CC) #define PRINT_CC_5(TO, TOA, PRFX, NAME, CC) \ - if ((CC).giga_no == 0) \ - erts_print(TO, TOA, "%s%s calls: %b32u\n",PRFX,NAME,CC.no); \ - else \ - erts_print(TO, TOA, "%s%s calls: %b32u%09lu\n",PRFX,NAME,CC.giga_no,CC.no) + erts_print(TO, TOA, "%s%s calls: %b64u\n",PRFX,NAME,CC) char *prefix = allctr->name_prefix; int to = *print_to_p; @@ -2866,9 +4282,6 @@ info_calls(Allctr_t *allctr, PRINT_CC_5(to, arg, prefix, "free", allctr->calls.this_free); PRINT_CC_5(to, arg, prefix, "realloc", allctr->calls.this_realloc); - PRINT_CC_4(to, arg, "sbmbc_alloc", allctr->calls.sbmbc_alloc); - PRINT_CC_4(to, arg, "sbmbc_free", allctr->calls.sbmbc_free); - #if HAVE_ERTS_MSEG PRINT_CC_4(to, arg, "mseg_alloc", allctr->calls.mseg_alloc); PRINT_CC_4(to, arg, "mseg_dealloc", allctr->calls.mseg_dealloc); @@ -2895,50 +4308,42 @@ info_calls(Allctr_t *allctr, add_3tup(hpp, szp, &res, am.sys_realloc, - bld_unstable_uint(hpp, szp, allctr->calls.sys_realloc.giga_no), - bld_unstable_uint(hpp, szp, allctr->calls.sys_realloc.no)); + bld_unstable_uint(hpp, szp, ERTS_ALC_CC_GIGA_VAL(allctr->calls.sys_realloc)), + bld_unstable_uint(hpp, szp, ERTS_ALC_CC_VAL(allctr->calls.sys_realloc))); add_3tup(hpp, szp, &res, am.sys_free, - bld_unstable_uint(hpp, szp, allctr->calls.sys_free.giga_no), - bld_unstable_uint(hpp, szp, allctr->calls.sys_free.no)); + bld_unstable_uint(hpp, szp, ERTS_ALC_CC_GIGA_VAL(allctr->calls.sys_free)), + bld_unstable_uint(hpp, szp, ERTS_ALC_CC_VAL(allctr->calls.sys_free))); add_3tup(hpp, szp, &res, am.sys_alloc, - bld_unstable_uint(hpp, szp, allctr->calls.sys_alloc.giga_no), - bld_unstable_uint(hpp, szp, allctr->calls.sys_alloc.no)); + bld_unstable_uint(hpp, szp, ERTS_ALC_CC_GIGA_VAL(allctr->calls.sys_alloc)), + bld_unstable_uint(hpp, szp, ERTS_ALC_CC_VAL(allctr->calls.sys_alloc))); #if HAVE_ERTS_MSEG add_3tup(hpp, szp, &res, am.mseg_realloc, - bld_unstable_uint(hpp, szp, allctr->calls.mseg_realloc.giga_no), - bld_unstable_uint(hpp, szp, allctr->calls.mseg_realloc.no)); + bld_unstable_uint(hpp, szp, ERTS_ALC_CC_GIGA_VAL(allctr->calls.mseg_realloc)), + bld_unstable_uint(hpp, szp, ERTS_ALC_CC_VAL(allctr->calls.mseg_realloc))); add_3tup(hpp, szp, &res, am.mseg_dealloc, - bld_unstable_uint(hpp, szp, allctr->calls.mseg_dealloc.giga_no), - bld_unstable_uint(hpp, szp, allctr->calls.mseg_dealloc.no)); + bld_unstable_uint(hpp, szp, ERTS_ALC_CC_GIGA_VAL(allctr->calls.mseg_dealloc)), + bld_unstable_uint(hpp, szp, ERTS_ALC_CC_VAL(allctr->calls.mseg_dealloc))); add_3tup(hpp, szp, &res, am.mseg_alloc, - bld_unstable_uint(hpp, szp, allctr->calls.mseg_alloc.giga_no), - bld_unstable_uint(hpp, szp, allctr->calls.mseg_alloc.no)); + bld_unstable_uint(hpp, szp, ERTS_ALC_CC_GIGA_VAL(allctr->calls.mseg_alloc)), + bld_unstable_uint(hpp, szp, ERTS_ALC_CC_VAL(allctr->calls.mseg_alloc))); #endif add_3tup(hpp, szp, &res, - am.sbmbc_free, - bld_unstable_uint(hpp, szp, allctr->calls.sbmbc_free.giga_no), - bld_unstable_uint(hpp, szp, allctr->calls.sbmbc_free.no)); - add_3tup(hpp, szp, &res, - am.sbmbc_alloc, - bld_unstable_uint(hpp, szp, allctr->calls.sbmbc_alloc.giga_no), - bld_unstable_uint(hpp, szp, allctr->calls.sbmbc_alloc.no)); - add_3tup(hpp, szp, &res, allctr->name.realloc, - bld_unstable_uint(hpp, szp, allctr->calls.this_realloc.giga_no), - bld_unstable_uint(hpp, szp, allctr->calls.this_realloc.no)); + bld_unstable_uint(hpp, szp, ERTS_ALC_CC_GIGA_VAL(allctr->calls.this_realloc)), + bld_unstable_uint(hpp, szp, ERTS_ALC_CC_VAL(allctr->calls.this_realloc))); add_3tup(hpp, szp, &res, allctr->name.free, - bld_unstable_uint(hpp, szp, allctr->calls.this_free.giga_no), - bld_unstable_uint(hpp, szp, allctr->calls.this_free.no)); + bld_unstable_uint(hpp, szp, ERTS_ALC_CC_GIGA_VAL(allctr->calls.this_free)), + bld_unstable_uint(hpp, szp, ERTS_ALC_CC_VAL(allctr->calls.this_free))); add_3tup(hpp, szp, &res, allctr->name.alloc, - bld_unstable_uint(hpp, szp, allctr->calls.this_alloc.giga_no), - bld_unstable_uint(hpp, szp, allctr->calls.this_alloc.no)); + bld_unstable_uint(hpp, szp, ERTS_ALC_CC_GIGA_VAL(allctr->calls.this_alloc)), + bld_unstable_uint(hpp, szp, ERTS_ALC_CC_VAL(allctr->calls.this_alloc))); } return res; @@ -2952,6 +4357,7 @@ info_options(Allctr_t *allctr, Uint *szp) { Eterm res = THE_NON_VALUE; + int acul; if (!allctr) { if (print_to_p) @@ -2963,6 +4369,12 @@ info_options(Allctr_t *allctr, return res; } +#ifdef ERTS_SMP + acul = allctr->cpool.util_limit; +#else + acul = 0; +#endif + if (print_to_p) { char topt[21]; /* Enough for any 64-bit integer */ if (allctr->t) @@ -2992,8 +4404,7 @@ info_options(Allctr_t *allctr, "option lmbcs: %beu\n" "option smbcs: %beu\n" "option mbcgs: %beu\n" - "option sbmbcs: %beu\n" - "option sbmbct: %beu\n", + "option acul: %d\n", topt, allctr->ramv ? "true" : "false", #if HALFWORD_HEAP @@ -3014,8 +4425,7 @@ info_options(Allctr_t *allctr, allctr->largest_mbc_size, allctr->smallest_mbc_size, allctr->mbc_growth_stages, - allctr->sbmbc_size, - allctr->sbmbc_threshold); + acul); } res = (*allctr->info_options)(allctr, "option ", print_to_p, print_to_arg, @@ -3023,11 +4433,8 @@ info_options(Allctr_t *allctr, if (hpp || szp) { add_2tup(hpp, szp, &res, - am.sbmbct, - bld_uint(hpp, szp, allctr->sbmbc_threshold)); - add_2tup(hpp, szp, &res, - am.sbmbcs, - bld_uint(hpp, szp, allctr->sbmbc_size)); + am.acul, + bld_uint(hpp, szp, (UWord) acul)); add_2tup(hpp, szp, &res, am.mbcgs, bld_uint(hpp, szp, allctr->mbc_growth_stages)); @@ -3117,17 +4524,22 @@ erts_alcu_au_info_options(int *print_to_p, void *print_to_arg, #if HAVE_ERTS_MSEG "option mmc: %beu\n" #endif - "option ycs: %beu\n", + "option ycs: %beu\n" + "option sac: %s\n", #if HAVE_ERTS_MSEG max_mseg_carriers, #endif - sys_alloc_carrier_size); + sys_alloc_carrier_size, + allow_sys_alloc_carriers ? "true" : "false"); } if (hpp || szp) { res = NIL; ensure_atoms_initialized(NULL); add_2tup(hpp, szp, &res, + am.sac, + allow_sys_alloc_carriers ? am_true : am_false); + add_2tup(hpp, szp, &res, am.ycs, bld_uint(hpp, szp, sys_alloc_carrier_size)); #if HAVE_ERTS_MSEG @@ -3150,17 +4562,21 @@ erts_alcu_info_options(Allctr_t *allctr, { Eterm res; + if (hpp || szp) + ensure_atoms_initialized(allctr); #ifdef USE_THREADS - if (allctr->thread_safe) + if (allctr->thread_safe) { + erts_allctr_wrapper_pre_lock(); erts_mtx_lock(&allctr->mutex); + } #endif - if (hpp || szp) - ensure_atoms_initialized(allctr); res = info_options(allctr, print_to_p, print_to_arg, hpp, szp); #ifdef USE_THREADS - if (allctr->thread_safe) + if (allctr->thread_safe) { erts_mtx_unlock(&allctr->mutex); + erts_allctr_wrapper_pre_unlock(); + } #endif return res; } @@ -3169,13 +4585,17 @@ erts_alcu_info_options(Allctr_t *allctr, Eterm erts_alcu_sz_info(Allctr_t *allctr, + int internal, int begin_max_period, int *print_to_p, void *print_to_arg, Uint **hpp, Uint *szp) { - Eterm res, sbmbcs, mbcs, sbcs, fix = THE_NON_VALUE; + Eterm res, mbcs, sbcs, fix = THE_NON_VALUE; +#ifdef ERTS_SMP + Eterm mbcs_pool; +#endif res = THE_NON_VALUE; @@ -3187,67 +4607,81 @@ erts_alcu_sz_info(Allctr_t *allctr, return am_false; } + if (hpp || szp) + ensure_atoms_initialized(allctr); + #ifdef USE_THREADS - if (allctr->thread_safe) + if (allctr->thread_safe) { + erts_allctr_wrapper_pre_lock(); erts_mtx_lock(&allctr->mutex); + } #endif ERTS_ALCU_DBG_CHK_THR_ACCESS(allctr); - if (hpp || szp) - ensure_atoms_initialized(allctr); - /* Update sbc values not continously updated */ allctr->sbcs.blocks.curr.no = allctr->sbcs.curr.norm.mseg.no + allctr->sbcs.curr.norm.sys_alloc.no; allctr->sbcs.blocks.max.no = allctr->sbcs.max.no; - update_max_ever_values(&allctr->sbmbcs); update_max_ever_values(&allctr->mbcs); update_max_ever_values(&allctr->sbcs); if (allctr->fix) - fix = sz_info_fix(allctr, print_to_p, print_to_arg, hpp, szp); - sbmbcs = sz_info_carriers(allctr, &allctr->sbmbcs, "sbmbcs ", print_to_p, - print_to_arg, hpp, szp); + fix = sz_info_fix(allctr, internal, print_to_p, print_to_arg, hpp, szp); mbcs = sz_info_carriers(allctr, &allctr->mbcs, "mbcs ", print_to_p, print_to_arg, hpp, szp); +#ifdef ERTS_SMP + if (ERTS_ALC_IS_CPOOL_ENABLED(allctr)) + mbcs_pool = info_cpool(allctr, 1, "mbcs_pool ", print_to_p, + print_to_arg, hpp, szp); + else + mbcs_pool = THE_NON_VALUE; /* shut up annoying warning... */ +#endif sbcs = sz_info_carriers(allctr, &allctr->sbcs, "sbcs ", print_to_p, print_to_arg, hpp, szp); if (hpp || szp) { res = NIL; add_2tup(hpp, szp, &res, am.sbcs, sbcs); +#ifdef ERTS_SMP + if (ERTS_ALC_IS_CPOOL_ENABLED(allctr)) + add_2tup(hpp, szp, &res, am.mbcs_pool, mbcs_pool); +#endif add_2tup(hpp, szp, &res, am.mbcs, mbcs); - add_2tup(hpp, szp, &res, am.sbmbcs, sbmbcs); - if (allctr->fix) - add_2tup(hpp, szp, &res, am.fix_types, fix); + add_fix_types(allctr, internal, hpp, szp, &res, fix); } if (begin_max_period) { - reset_max_values(&allctr->sbmbcs); reset_max_values(&allctr->mbcs); reset_max_values(&allctr->sbcs); } #ifdef USE_THREADS - if (allctr->thread_safe) + if (allctr->thread_safe) { erts_mtx_unlock(&allctr->mutex); + erts_allctr_wrapper_pre_unlock(); + } #endif return res; } + Eterm erts_alcu_info(Allctr_t *allctr, + int internal, int begin_max_period, int *print_to_p, void *print_to_arg, Uint **hpp, Uint *szp) { - Eterm res, sett, sbmbcs, mbcs, sbcs, calls, fix = THE_NON_VALUE; + Eterm res, sett, mbcs, sbcs, calls, fix = THE_NON_VALUE; +#ifdef ERTS_SMP + Eterm mbcs_pool; +#endif res = THE_NON_VALUE; @@ -3259,22 +4693,23 @@ erts_alcu_info(Allctr_t *allctr, return am_false; } + if (hpp || szp) + ensure_atoms_initialized(allctr); + #ifdef USE_THREADS - if (allctr->thread_safe) + if (allctr->thread_safe) { + erts_allctr_wrapper_pre_lock(); erts_mtx_lock(&allctr->mutex); + } #endif ERTS_ALCU_DBG_CHK_THR_ACCESS(allctr); - if (hpp || szp) - ensure_atoms_initialized(allctr); - /* Update sbc values not continously updated */ allctr->sbcs.blocks.curr.no = allctr->sbcs.curr.norm.mseg.no + allctr->sbcs.curr.norm.sys_alloc.no; allctr->sbcs.blocks.max.no = allctr->sbcs.max.no; - update_max_ever_values(&allctr->sbmbcs); update_max_ever_values(&allctr->mbcs); update_max_ever_values(&allctr->sbcs); @@ -3288,11 +4723,16 @@ erts_alcu_info(Allctr_t *allctr, sett = info_options(allctr, print_to_p, print_to_arg, hpp, szp); if (allctr->fix) - fix = sz_info_fix(allctr, print_to_p, print_to_arg, hpp, szp); - sbmbcs = info_carriers(allctr, &allctr->sbmbcs, "sbmbcs ", print_to_p, - print_to_arg, hpp, szp); + fix = sz_info_fix(allctr, internal, print_to_p, print_to_arg, hpp, szp); mbcs = info_carriers(allctr, &allctr->mbcs, "mbcs ", print_to_p, print_to_arg, hpp, szp); +#ifdef ERTS_SMP + if (ERTS_ALC_IS_CPOOL_ENABLED(allctr)) + mbcs_pool = info_cpool(allctr, 0, "mbcs_pool ", print_to_p, + print_to_arg, hpp, szp); + else + mbcs_pool = THE_NON_VALUE; /* shut up annoying warning... */ +#endif sbcs = info_carriers(allctr, &allctr->sbcs, "sbcs ", print_to_p, print_to_arg, hpp, szp); calls = info_calls(allctr, print_to_p, print_to_arg, hpp, szp); @@ -3302,10 +4742,12 @@ erts_alcu_info(Allctr_t *allctr, add_2tup(hpp, szp, &res, am.calls, calls); add_2tup(hpp, szp, &res, am.sbcs, sbcs); +#ifdef ERTS_SMP + if (ERTS_ALC_IS_CPOOL_ENABLED(allctr)) + add_2tup(hpp, szp, &res, am.mbcs_pool, mbcs_pool); +#endif add_2tup(hpp, szp, &res, am.mbcs, mbcs); - add_2tup(hpp, szp, &res, am.sbmbcs, sbmbcs); - if (allctr->fix) - add_2tup(hpp, szp, &res, am.fix_types, fix); + add_fix_types(allctr, internal, hpp, szp, &res, fix); add_2tup(hpp, szp, &res, am.options, sett); add_3tup(hpp, szp, &res, am.versions, @@ -3314,15 +4756,16 @@ erts_alcu_info(Allctr_t *allctr, } if (begin_max_period) { - reset_max_values(&allctr->sbmbcs); reset_max_values(&allctr->mbcs); reset_max_values(&allctr->sbcs); } #ifdef USE_THREADS - if (allctr->thread_safe) + if (allctr->thread_safe) { erts_mtx_unlock(&allctr->mutex); + erts_allctr_wrapper_pre_unlock(); + } #endif return res; @@ -3340,22 +4783,37 @@ erts_alcu_current_size(Allctr_t *allctr, AllctrSize_t *size, ErtsAlcUFixInfo_t * size->carriers = allctr->mbcs.curr.norm.mseg.size; size->carriers += allctr->mbcs.curr.norm.sys_alloc.size; - size->carriers += allctr->sbmbcs.curr.small_block.size; size->carriers += allctr->sbcs.curr.norm.mseg.size; size->carriers += allctr->sbcs.curr.norm.sys_alloc.size; size->blocks = allctr->mbcs.blocks.curr.size; - size->blocks += allctr->sbmbcs.blocks.curr.size; size->blocks += allctr->sbcs.blocks.curr.size; +#ifdef ERTS_SMP + if (ERTS_ALC_IS_CPOOL_ENABLED(allctr)) { + UWord csz, bsz; + cpool_read_stat(allctr, NULL, &csz, NULL, &bsz); + size->blocks += bsz; + size->carriers += csz; + } +#endif + if (fi) { int ix; for (ix = 0; ix < fisz; ix++) { if (allctr->fix) { - fi[ix].allocated += (allctr->fix[ix].type_size - * allctr->fix[ix].allocated); - fi[ix].used += (allctr->fix[ix].type_size - * allctr->fix[ix].used); + if (ERTS_ALC_IS_CPOOL_ENABLED(allctr)) { + fi[ix].allocated += (allctr->fix[ix].type_size + * allctr->fix[ix].u.cpool.allocated); + fi[ix].used += (allctr->fix[ix].type_size + * allctr->fix[ix].u.cpool.used); + } + else { + fi[ix].allocated += (allctr->fix[ix].type_size + * allctr->fix[ix].u.nocpool.allocated); + fi[ix].used += (allctr->fix[ix].type_size + * allctr->fix[ix].u.nocpool.used); + } } } } @@ -3373,7 +4831,6 @@ do_erts_alcu_alloc(ErtsAlcType_t type, void *extra, Uint size) { Allctr_t *allctr = (Allctr_t *) extra; void *res; - ErtsAlcFixList_t *fix; ASSERT(initialized); @@ -3391,61 +4848,21 @@ do_erts_alcu_alloc(ErtsAlcType_t type, void *extra, Uint size) INC_CC(allctr->calls.this_alloc); - fix = allctr->fix; - if (fix) { - int ix = type - ERTS_ALC_N_MIN_A_FIXED_SIZE; - ERTS_DBG_CHK_FIX_LIST(allctr, fix, ix, 1); - fix[ix].used++; - res = fix[ix].list; - if (res) { - fix[ix].list_size--; - fix[ix].list = *((void **) res); - if (fix[ix].list && fix[ix].allocated > fix[ix].limit) { - void *p = fix[ix].list; - Block_t *blk; - fix[ix].list = *((void **) p); - fix[ix].list_size--; - blk = UMEM2BLK(p); - if (IS_SBC_BLK(blk)) - destroy_carrier(allctr, blk); - else - mbc_free(allctr, p); - fix[ix].allocated--; - } - ERTS_DBG_CHK_FIX_LIST(allctr, fix, ix, 0); - return res; - } - if (size < 2*sizeof(UWord)) - size += sizeof(UWord); - if (fix[ix].limit < fix[ix].used) - fix[ix].limit = fix[ix].used; - if (fix[ix].max_used < fix[ix].used) - fix[ix].max_used = fix[ix].used; - fix[ix].allocated++; + if (allctr->fix) { + if (ERTS_ALC_IS_CPOOL_ENABLED(allctr)) + return fix_cpool_alloc(allctr, type, size); + else + return fix_nocpool_alloc(allctr, type, size); } if (size >= allctr->sbc_threshold) { Block_t *blk; -#ifdef ERTS_SMP - if (allctr->dd.use) - ERTS_ALCU_HANDLE_DD_IN_OP(allctr, 1); -#endif -#if HALFWORD_HEAP - blk = create_carrier(allctr, size, - CFLG_SBC | CFLG_FORCE_MSEG); -#else blk = create_carrier(allctr, size, CFLG_SBC); -#endif res = blk ? BLK2UMEM(blk) : NULL; } else res = mbc_alloc(allctr, size); - if (!res && fix) { - int ix = type - ERTS_ALC_N_MIN_A_FIXED_SIZE; - fix[ix].allocated--; - fix[ix].used--; - } return res; } @@ -3506,24 +4923,33 @@ erts_alcu_alloc_thr_spec(ErtsAlcType_t type, void *extra, Uint size) void * erts_alcu_alloc_thr_pref(ErtsAlcType_t type, void *extra, Uint size) { - int pref_ix; Allctr_t *pref_allctr; void *res; - pref_ix = get_pref_allctr(extra, &pref_allctr); + pref_allctr = get_pref_allctr(extra); if (pref_allctr->thread_safe) erts_mtx_lock(&pref_allctr->mutex); +#ifdef ERTS_SMP + ASSERT(pref_allctr->dd.use); + ERTS_ALCU_HANDLE_DD_IN_OP(pref_allctr, 1); +#endif + ERTS_ALCU_DBG_CHK_THR_ACCESS(pref_allctr); - res = do_erts_alcu_alloc(type, pref_allctr, size + sizeof(UWord)); + res = do_erts_alcu_alloc(type, pref_allctr, size); + +#ifdef ERTS_SMP + if (!res && ERTS_ALCU_HANDLE_DD_IN_OP(pref_allctr, 1)) { + /* Cleaned up a bit more; try one more time... */ + res = do_erts_alcu_alloc(type, pref_allctr, size); + } +#endif + if (pref_allctr->thread_safe) erts_mtx_unlock(&pref_allctr->mutex); - if (res) - res = put_used_allctr(res, pref_ix, size); - DEBUG_CHECK_ALIGNMENT(res); @@ -3537,9 +4963,9 @@ erts_alcu_alloc_thr_pref(ErtsAlcType_t type, void *extra, Uint size) /* ------------------------------------------------------------------------- */ static ERTS_INLINE void -do_erts_alcu_free(ErtsAlcType_t type, void *extra, void *p) +do_erts_alcu_free(ErtsAlcType_t type, void *extra, void *p, + Carrier_t **busy_pcrr_pp) { - int ix; Allctr_t *allctr = (Allctr_t *) extra; ASSERT(initialized); @@ -3551,57 +4977,28 @@ do_erts_alcu_free(ErtsAlcType_t type, void *extra, void *p) ERTS_ALCU_DBG_CHK_THR_ACCESS(allctr); if (p) { - ErtsAlcFixList_t *fix = allctr->fix; - Block_t *blk; INC_CC(allctr->calls.this_free); - if (fix) { - ix = type - ERTS_ALC_N_MIN_A_FIXED_SIZE; - ERTS_DBG_CHK_FIX_LIST(allctr, fix, ix, 1); - fix[ix].used--; - if (fix[ix].allocated < fix[ix].limit - && fix[ix].list_size < ERTS_ALCU_FIX_MAX_LIST_SZ) { - *((void **) p) = fix[ix].list; - fix[ix].list = p; - fix[ix].list_size++; - if (!allctr->fix_shrink_scheduled) { - allctr->fix_shrink_scheduled = 1; - erts_set_aux_work_timeout( - allctr->ix, - (ERTS_SSI_AUX_WORK_FIX_ALLOC_LOWER_LIM - | ERTS_SSI_AUX_WORK_FIX_ALLOC_DEALLOC), - 1); - } - ERTS_DBG_CHK_FIX_LIST(allctr, fix, ix, 0); - return; - } - fix[ix].allocated--; - if (fix[ix].list && fix[ix].allocated > fix[ix].limit) { - blk = UMEM2BLK(p); - if (IS_SBC_BLK(blk)) - destroy_carrier(allctr, blk); - else - mbc_free(allctr, p); - p = fix[ix].list; - fix[ix].list = *((void **) p); - fix[ix].list_size--; - fix[ix].allocated--; - } + if (allctr->fix) { + if (ERTS_ALC_IS_CPOOL_ENABLED(allctr)) + fix_cpool_free(allctr, type, p, busy_pcrr_pp); + else + fix_nocpool_free(allctr, type, p); + } + else { + Block_t *blk = UMEM2BLK(p); + if (IS_SBC_BLK(blk)) + destroy_carrier(allctr, blk, NULL); + else + mbc_free(allctr, p, busy_pcrr_pp); } - - blk = UMEM2BLK(p); - if (IS_SBC_BLK(blk)) - destroy_carrier(allctr, blk); - else - mbc_free(allctr, p); - ERTS_DBG_CHK_FIX_LIST(allctr, fix, ix, 0); } } void erts_alcu_free(ErtsAlcType_t type, void *extra, void *p) { - do_erts_alcu_free(type, extra, p); + do_erts_alcu_free(type, extra, p, NULL); } #ifdef USE_THREADS @@ -3611,7 +5008,7 @@ erts_alcu_free_ts(ErtsAlcType_t type, void *extra, void *p) { Allctr_t *allctr = (Allctr_t *) extra; erts_mtx_lock(&allctr->mutex); - do_erts_alcu_free(type, extra, p); + do_erts_alcu_free(type, extra, p, NULL); erts_mtx_unlock(&allctr->mutex); } @@ -3633,7 +5030,7 @@ erts_alcu_free_thr_spec(ErtsAlcType_t type, void *extra, void *p) if (allctr->thread_safe) erts_mtx_lock(&allctr->mutex); - do_erts_alcu_free(type, allctr, p); + do_erts_alcu_free(type, allctr, p, NULL); if (allctr->thread_safe) erts_mtx_unlock(&allctr->mutex); @@ -3643,24 +5040,24 @@ void erts_alcu_free_thr_pref(ErtsAlcType_t type, void *extra, void *p) { if (p) { + Carrier_t *busy_pcrr_p; Allctr_t *pref_allctr, *used_allctr; - void *ptr; - get_pref_allctr(extra, &pref_allctr); - ptr = get_used_allctr(extra, p, &used_allctr, NULL); + pref_allctr = get_pref_allctr(extra); + used_allctr = get_used_allctr(pref_allctr, ERTS_ALC_TS_PREF_LOCK_IF_USED, + p, NULL, &busy_pcrr_p); if (pref_allctr != used_allctr) enqueue_dealloc_other_instance(type, used_allctr, - ptr, + p, (used_allctr->dd.ix - pref_allctr->dd.ix)); else { - if (used_allctr->thread_safe) - erts_mtx_lock(&used_allctr->mutex); ERTS_ALCU_DBG_CHK_THR_ACCESS(used_allctr); - do_erts_alcu_free(type, used_allctr, ptr); - if (used_allctr->thread_safe) - erts_mtx_unlock(&used_allctr->mutex); + do_erts_alcu_free(type, used_allctr, p, &busy_pcrr_p); + clear_busy_pool_carrier(used_allctr, busy_pcrr_p); + if (pref_allctr->thread_safe) + erts_mtx_unlock(&pref_allctr->mutex); } } } @@ -3676,7 +5073,8 @@ do_erts_alcu_realloc(ErtsAlcType_t type, void *extra, void *p, Uint size, - Uint32 alcu_flgs) + Uint32 alcu_flgs, + Carrier_t **busy_pcrr_pp) { Allctr_t *allctr = (Allctr_t *) extra; Block_t *blk; @@ -3701,7 +5099,7 @@ do_erts_alcu_realloc(ErtsAlcType_t type, #if ALLOC_ZERO_EQ_NULL if (!size) { ASSERT(p); - do_erts_alcu_free(type, extra, p); + do_erts_alcu_free(type, extra, p, busy_pcrr_pp); INC_CC(allctr->calls.this_realloc); DEC_CC(allctr->calls.this_free); return NULL; @@ -3712,45 +5110,22 @@ do_erts_alcu_realloc(ErtsAlcType_t type, blk = UMEM2BLK(p); - if (allctr->sbmbc_threshold > 0) { - Uint old_sz, new_sz, lim; - lim = allctr->sbmbc_threshold; - old_sz = BLK_SZ(blk); - new_sz = UMEMSZ2BLKSZ(allctr, size); - if ((old_sz < lim && lim <= new_sz) - || (new_sz < lim && lim <= old_sz)) { - /* *Need* to move it... */ - - INC_CC(allctr->calls.this_realloc); - res = do_erts_alcu_alloc(type, extra, size); - DEC_CC(allctr->calls.this_alloc); - - sys_memcpy(res, p, MIN(size, old_sz - ABLK_HDR_SZ)); - - do_erts_alcu_free(type, extra, p); - DEC_CC(allctr->calls.this_free); - return res; - } - if (old_sz < lim) - alcu_flgs |= ERTS_ALCU_FLG_SBMBC; - } - if (size < allctr->sbc_threshold) { if (IS_MBC_BLK(blk)) - res = mbc_realloc(allctr, p, size, alcu_flgs); + res = mbc_realloc(allctr, p, size, alcu_flgs, busy_pcrr_pp); else { - Uint used_sz = allctr->sbc_header_size + ABLK_HDR_SZ + size; + Uint used_sz = SBC_HEADER_SIZE + ABLK_HDR_SZ + size; Uint crr_sz; Uint diff_sz_val; Uint crr_sz_val; #if HAVE_ERTS_MSEG - if (IS_SYS_ALLOC_CARRIER(BLK2SBC(allctr, blk))) + if (IS_SYS_ALLOC_CARRIER(BLK_TO_SBC(blk))) #endif crr_sz = SYS_ALLOC_CARRIER_CEILING(used_sz); #if HAVE_ERTS_MSEG else - crr_sz = MSEG_UNIT_CEILING(used_sz); + crr_sz = ERTS_SACRR_UNIT_CEILING(used_sz); #endif diff_sz_val = crr_sz - used_sz; if (diff_sz_val < (~((Uint) 0) / 100)) @@ -3775,17 +5150,13 @@ do_erts_alcu_realloc(ErtsAlcType_t type, if (res) { sys_memcpy((void*) res, (void*) p, - MIN(BLK_SZ(blk) - ABLK_HDR_SZ, size)); - destroy_carrier(allctr, blk); + MIN(SBC_BLK_SZ(blk) - ABLK_HDR_SZ, size)); + destroy_carrier(allctr, blk, NULL); } } } else { Block_t *new_blk; -#ifdef ERTS_SMP - if (allctr->dd.use) - ERTS_ALCU_HANDLE_DD_IN_OP(allctr, 1); -#endif if(IS_SBC_BLK(blk)) { do_carrier_resize: #if HALFWORD_HEAP @@ -3798,17 +5169,13 @@ do_erts_alcu_realloc(ErtsAlcType_t type, else if (alcu_flgs & ERTS_ALCU_FLG_FAIL_REALLOC_MOVE) return NULL; else { -#if HALFWORD_HEAP - new_blk = create_carrier(allctr, size, CFLG_SBC | CFLG_FORCE_MSEG); -#else new_blk = create_carrier(allctr, size, CFLG_SBC); -#endif if (new_blk) { res = BLK2UMEM(new_blk); sys_memcpy((void *) res, (void *) p, - MIN(BLK_SZ(blk) - ABLK_HDR_SZ, size)); - mbc_free(allctr, p); + MIN(MBC_ABLK_SZ(blk) - ABLK_HDR_SZ, size)); + mbc_free(allctr, p, busy_pcrr_pp); } else res = NULL; @@ -3822,7 +5189,7 @@ void * erts_alcu_realloc(ErtsAlcType_t type, void *extra, void *p, Uint size) { void *res; - res = do_erts_alcu_realloc(type, extra, p, size, 0); + res = do_erts_alcu_realloc(type, extra, p, size, 0, NULL); DEBUG_CHECK_ALIGNMENT(res); return res; } @@ -3843,7 +5210,7 @@ erts_alcu_realloc_mv(ErtsAlcType_t type, void *extra, void *p, Uint size) if (cpy_size > size) cpy_size = size; sys_memcpy(res, p, cpy_size); - do_erts_alcu_free(type, extra, p); + do_erts_alcu_free(type, extra, p, NULL); } DEBUG_CHECK_ALIGNMENT(res); return res; @@ -3858,7 +5225,7 @@ erts_alcu_realloc_ts(ErtsAlcType_t type, void *extra, void *ptr, Uint size) Allctr_t *allctr = (Allctr_t *) extra; void *res; erts_mtx_lock(&allctr->mutex); - res = do_erts_alcu_realloc(type, extra, ptr, size, 0); + res = do_erts_alcu_realloc(type, extra, ptr, size, 0, NULL); erts_mtx_unlock(&allctr->mutex); DEBUG_CHECK_ALIGNMENT(res); return res; @@ -3882,7 +5249,7 @@ erts_alcu_realloc_mv_ts(ErtsAlcType_t type, void *extra, void *p, Uint size) if (cpy_size > size) cpy_size = size; sys_memcpy(res, p, cpy_size); - do_erts_alcu_free(type, extra, p); + do_erts_alcu_free(type, extra, p, NULL); } erts_mtx_unlock(&allctr->mutex); DEBUG_CHECK_ALIGNMENT(res); @@ -3909,7 +5276,7 @@ erts_alcu_realloc_thr_spec(ErtsAlcType_t type, void *extra, if (allctr->thread_safe) erts_mtx_lock(&allctr->mutex); - res = do_erts_alcu_realloc(type, allctr, ptr, size, 0); + res = do_erts_alcu_realloc(type, allctr, ptr, size, 0, NULL); if (allctr->thread_safe) erts_mtx_unlock(&allctr->mutex); @@ -3952,7 +5319,7 @@ erts_alcu_realloc_mv_thr_spec(ErtsAlcType_t type, void *extra, if (cpy_size > size) cpy_size = size; sys_memcpy(res, ptr, cpy_size); - do_erts_alcu_free(type, allctr, ptr); + do_erts_alcu_free(type, allctr, ptr, NULL); if (allctr->thread_safe) erts_mtx_unlock(&allctr->mutex); } @@ -3966,76 +5333,82 @@ static ERTS_INLINE void * realloc_thr_pref(ErtsAlcType_t type, void *extra, void *p, Uint size, int force_move) { - int pref_ix; - void *ptr, *res; + void *res; Allctr_t *pref_allctr, *used_allctr; UWord old_user_size; + Carrier_t *busy_pcrr_p; +#ifdef ERTS_SMP + int retried; +#endif if (!p) return erts_alcu_alloc_thr_pref(type, extra, size); - pref_ix = get_pref_allctr(extra, &pref_allctr); - ptr = get_used_allctr(extra, p, &used_allctr, &old_user_size); + pref_allctr = get_pref_allctr(extra); + + if (pref_allctr->thread_safe) + erts_mtx_lock(&pref_allctr->mutex); + +#ifdef ERTS_SMP + ASSERT(pref_allctr->dd.use); + ERTS_ALCU_HANDLE_DD_IN_OP(pref_allctr, 1); + retried = 0; +restart: +#endif + + used_allctr = get_used_allctr(pref_allctr, ERTS_ALC_TS_PREF_LOCK_NO, + p, &old_user_size, &busy_pcrr_p); ASSERT(used_allctr && pref_allctr); if (!force_move && used_allctr == pref_allctr) { - if (used_allctr->thread_safe) - erts_mtx_lock(&used_allctr->mutex); ERTS_ALCU_DBG_CHK_THR_ACCESS(used_allctr); res = do_erts_alcu_realloc(type, used_allctr, - ptr, - size + sizeof(UWord), - 0); - if (used_allctr->thread_safe) - erts_mtx_unlock(&used_allctr->mutex); - if (res) - res = put_used_allctr(res, pref_ix, size); - } - else { + p, + size, + 0, + &busy_pcrr_p); + clear_busy_pool_carrier(used_allctr, busy_pcrr_p); +#ifdef ERTS_SMP + if (!res && !retried && ERTS_ALCU_HANDLE_DD_IN_OP(pref_allctr, 1)) { + /* Cleaned up a bit more; try one more time... */ + retried = 1; + goto restart; + } +#endif if (pref_allctr->thread_safe) - erts_mtx_lock(&pref_allctr->mutex); - res = do_erts_alcu_alloc(type, pref_allctr, size + sizeof(UWord)); - if (pref_allctr->thread_safe && (!force_move - || used_allctr != pref_allctr)) erts_mtx_unlock(&pref_allctr->mutex); - if (res) { - Block_t *blk; - size_t cpy_size; - - res = put_used_allctr(res, pref_ix, size); + } + else { + res = do_erts_alcu_alloc(type, pref_allctr, size); + if (!res) + goto unlock_ts_return; + else { DEBUG_CHECK_ALIGNMENT(res); - blk = UMEM2BLK(ptr); - if (old_user_size != ERTS_AU_PREF_ALLOC_SIZE_MASK) - cpy_size = old_user_size; - else { - if (used_allctr->thread_safe && (!force_move - || used_allctr != pref_allctr)) - erts_mtx_lock(&used_allctr->mutex); - ERTS_SMP_LC_ASSERT(!used_allctr->thread_safe || - erts_lc_mtx_is_locked(&used_allctr->mutex)); - cpy_size = BLK_SZ(blk); - if (used_allctr->thread_safe && (!force_move - || used_allctr != pref_allctr)) - erts_mtx_unlock(&used_allctr->mutex); - cpy_size -= ABLK_HDR_SZ + sizeof(UWord); - } - if (cpy_size > size) - cpy_size = size; - sys_memcpy(res, p, cpy_size); + if (used_allctr != pref_allctr) { + if (pref_allctr->thread_safe) + erts_mtx_unlock(&pref_allctr->mutex); + + sys_memcpy(res, p, MIN(size, old_user_size)); - if (!force_move || used_allctr != pref_allctr) enqueue_dealloc_other_instance(type, used_allctr, - ptr, + p, (used_allctr->dd.ix - pref_allctr->dd.ix)); + } else { - do_erts_alcu_free(type, used_allctr, ptr); + + sys_memcpy(res, p, MIN(size, old_user_size)); + + do_erts_alcu_free(type, used_allctr, p, &busy_pcrr_p); ASSERT(pref_allctr == used_allctr); + clear_busy_pool_carrier(used_allctr, busy_pcrr_p); + + unlock_ts_return: if (pref_allctr->thread_safe) erts_mtx_unlock(&pref_allctr->mutex); } @@ -4069,6 +5442,11 @@ erts_alcu_start(Allctr_t *allctr, AllctrInit_t *init) { /* erts_alcu_start assumes that allctr has been zeroed */ + if (((UWord)allctr & ERTS_CRR_ALCTR_FLG_MASK) != 0) { + erl_exit(ERTS_ABORT_EXIT, "%s:%d:erts_alcu_start: Alignment error\n", + __FILE__, __LINE__); + } + if (!initialized) goto error; @@ -4111,7 +5489,7 @@ erts_alcu_start(Allctr_t *allctr, AllctrInit_t *init) allctr->ramv = init->ramv; allctr->main_carrier_size = init->mmbcs; - allctr->sbc_threshold = init->sbct; + #if HAVE_ERTS_MSEG allctr->mseg_opt.abs_shrink_th = init->asbcst; allctr->mseg_opt.rel_shrink_th = init->rsbcst; @@ -4120,49 +5498,64 @@ erts_alcu_start(Allctr_t *allctr, AllctrInit_t *init) allctr->mbc_move_threshold = init->rmbcmt; #if HAVE_ERTS_MSEG allctr->max_mseg_sbcs = init->mmsbc; +# if ERTS_SUPER_ALIGNED_MSEG_ONLY + allctr->max_mseg_mbcs = ~(Uint)0; +# else allctr->max_mseg_mbcs = init->mmmbc; +# endif #endif allctr->largest_mbc_size = MAX(init->lmbcs, init->smbcs); +#ifndef ARCH_64 + if (allctr->largest_mbc_size > MBC_SZ_MAX_LIMIT) { + allctr->largest_mbc_size = MBC_SZ_MAX_LIMIT; + } +#endif allctr->smallest_mbc_size = init->smbcs; allctr->mbc_growth_stages = MAX(1, init->mbcgs); if (allctr->min_block_size < ABLK_HDR_SZ) goto error; allctr->min_block_size = UNIT_CEILING(allctr->min_block_size - + sizeof(UWord)); + + sizeof(FreeBlkFtr_t)); #if ERTS_SMP if (init->tpref) { - Uint sz = sizeof(Block_t); - sz += ERTS_ALCU_DD_FIX_TYPE_OFFS*sizeof(UWord); - if (init->fix) - sz += sizeof(UWord); + Uint sz = ABLK_HDR_SZ; + sz += (init->fix ? + sizeof(ErtsAllctrFixDDBlock_t) : sizeof(ErtsAllctrDDBlock_t)); sz = UNIT_CEILING(sz); if (sz > allctr->min_block_size) allctr->min_block_size = sz; } -#endif - - - allctr->sbmbc_threshold = init->sbmbct; - - if (!erts_have_sbmbc_alloc - || ERTS_IS_SBMBC_ALLOCATOR_NO__(allctr->alloc_no)) - allctr->sbmbc_threshold = 0; + allctr->cpool.dc_list.first = NULL; + allctr->cpool.dc_list.last = NULL; + allctr->cpool.abandon_limit = 0; + allctr->cpool.disable_abandon = 0; + erts_atomic_init_nob(&allctr->cpool.stat.blocks_size, 0); + erts_atomic_init_nob(&allctr->cpool.stat.no_blocks, 0); + erts_atomic_init_nob(&allctr->cpool.stat.carriers_size, 0); + erts_atomic_init_nob(&allctr->cpool.stat.no_carriers, 0); + allctr->cpool.check_limit_count = ERTS_ALC_CPOOL_CHECK_LIMIT_COUNT; + allctr->cpool.util_limit = init->ts ? 0 : init->acul; +#endif - if (!allctr->sbmbc_threshold) - allctr->sbmbc_size = 0; - else { - Uint min_size; - allctr->sbmbc_size = init->sbmbcs; - min_size = allctr->sbmbc_threshold; - min_size += allctr->min_block_size; - min_size += allctr->mbc_header_size; - if (allctr->sbmbc_size < min_size) - allctr->sbmbc_size = min_size; + allctr->sbc_threshold = init->sbct; +#ifndef ARCH_64 + if (allctr->sbc_threshold > 0) { + Uint max_mbc_block_sz = UNIT_CEILING(allctr->sbc_threshold - 1 + ABLK_HDR_SZ); + if (max_mbc_block_sz + UNIT_FLOOR(allctr->min_block_size - 1) > MBC_ABLK_SZ_MASK + || max_mbc_block_sz < allctr->sbc_threshold) { /* wrap around */ + /* + * By limiting sbc_threshold to (hard limit - min_block_size) + * we avoid having to split off free "residue blocks" + * smaller than min_block_size. + */ + max_mbc_block_sz = MBC_ABLK_SZ_MASK - UNIT_FLOOR(allctr->min_block_size - 1); + allctr->sbc_threshold = max_mbc_block_sz - ABLK_HDR_SZ + 1; + } } - +#endif #if HAVE_ERTS_MSEG if (allctr->mseg_opt.abs_shrink_th > ~((UWord) 0) / 100) @@ -4175,17 +5568,13 @@ erts_alcu_start(Allctr_t *allctr, AllctrInit_t *init) #ifdef ERTS_ENABLE_LOCK_COUNT erts_mtx_init_x_opt(&allctr->mutex, - ERTS_IS_SBMBC_ALLOCATOR_NO__(allctr->alloc_no) - ? "sbmbc_alloc" - : "alcu_allocator", + "alcu_allocator", make_small(allctr->alloc_no), - ERTS_LCNT_LT_ALLOC); + ERTS_LCNT_LT_ALLOC,1); #else erts_mtx_init_x(&allctr->mutex, - ERTS_IS_SBMBC_ALLOCATOR_NO__(allctr->alloc_no) - ? "sbmbc_alloc" - : "alcu_allocator", - make_small(allctr->alloc_no)); + "alcu_allocator", + make_small(allctr->alloc_no),1); #endif /*ERTS_ENABLE_LOCK_COUNT*/ #ifdef DEBUG @@ -4208,58 +5597,38 @@ erts_alcu_start(Allctr_t *allctr, AllctrInit_t *init) #ifdef ERTS_SMP allctr->dd.use = 0; if (init->tpref) { - allctr->mbc_header_size = (UNIT_CEILING(allctr->mbc_header_size - + FBLK_FTR_SZ - + ABLK_HDR_SZ - + sizeof(UWord)) - - ABLK_HDR_SZ - - sizeof(UWord)); - allctr->sbc_header_size = (UNIT_CEILING(sizeof(Carrier_t) - + FBLK_FTR_SZ - + ABLK_HDR_SZ - + sizeof(UWord)) - - ABLK_HDR_SZ - - sizeof(UWord)); - allctr->dd.use = 1; init_dd_queue(&allctr->dd.q); allctr->dd.ix = init->ix; } - else #endif - { - allctr->mbc_header_size = (UNIT_CEILING(allctr->mbc_header_size - + FBLK_FTR_SZ - + ABLK_HDR_SZ) - - ABLK_HDR_SZ); - allctr->sbc_header_size = (UNIT_CEILING(sizeof(Carrier_t) - + FBLK_FTR_SZ - + ABLK_HDR_SZ) - - ABLK_HDR_SZ); - } + allctr->mbc_header_size = (UNIT_CEILING(allctr->mbc_header_size + + ABLK_HDR_SZ) + - ABLK_HDR_SZ); if (allctr->main_carrier_size) { Block_t *blk; -#if HALFWORD_HEAP - blk = create_carrier(allctr, - allctr->main_carrier_size, - CFLG_MBC - | CFLG_FORCE_SIZE - | CFLG_FORCE_MSEG - | CFLG_MAIN_CARRIER); -#else blk = create_carrier(allctr, allctr->main_carrier_size, CFLG_MBC | CFLG_FORCE_SIZE + | CFLG_NO_CPOOL +#if !HALFWORD_HEAP && !ERTS_SUPER_ALIGNED_MSEG_ONLY | CFLG_FORCE_SYS_ALLOC +#endif | CFLG_MAIN_CARRIER); + if (!blk) { +#ifdef USE_THREADS + if (allctr->thread_safe) + erts_mtx_destroy(&allctr->mutex); #endif - if (!blk) - goto error; + erl_exit(ERTS_ABORT_EXIT, + "Failed to create main carrier for %salloc\n", + init->name_prefix); + } - (*allctr->link_free_block)(allctr, blk, 0); + (*allctr->link_free_block)(allctr, blk); HARD_CHECK_BLK_CARRIER(allctr, blk); @@ -4270,13 +5639,24 @@ erts_alcu_start(Allctr_t *allctr, AllctrInit_t *init) allctr->fix = init->fix; allctr->fix_shrink_scheduled = 0; for (i = 0; i < ERTS_ALC_NO_FIXED_SIZES; i++) { - allctr->fix[i].max_used = 0; - allctr->fix[i].limit = 0; allctr->fix[i].type_size = init->fix_type_size[i]; allctr->fix[i].list_size = 0; allctr->fix[i].list = NULL; - allctr->fix[i].allocated = 0; - allctr->fix[i].used = 0; +#ifdef ERTS_SMP + ASSERT(allctr->fix[i].type_size >= sizeof(ErtsAllctrFixDDBlock_t)); +#endif + if (ERTS_ALC_IS_CPOOL_ENABLED(allctr)) { + allctr->fix[i].u.cpool.min_list_size = 0; + allctr->fix[i].u.cpool.shrink_list = 0; + allctr->fix[i].u.cpool.allocated = 0; + allctr->fix[i].u.cpool.used = 0; + } + else { + allctr->fix[i].u.nocpool.max_used = 0; + allctr->fix[i].u.nocpool.limit = 0; + allctr->fix[i].u.nocpool.allocated = 0; + allctr->fix[i].u.nocpool.used = 0; + } } } @@ -4301,11 +5681,9 @@ erts_alcu_stop(Allctr_t *allctr) allctr->stopped = 1; while (allctr->sbc_list.first) - destroy_carrier(allctr, SBC2BLK(allctr, allctr->sbc_list.first)); + destroy_carrier(allctr, SBC2BLK(allctr, allctr->sbc_list.first), NULL); while (allctr->mbc_list.first) - destroy_carrier(allctr, MBC2FBLK(allctr, allctr->mbc_list.first)); - while (allctr->sbmbc_list.first) - destroy_sbmbc(allctr, MBC2FBLK(allctr, allctr->sbmbc_list.first)); + destroy_carrier(allctr, MBC_TO_FIRST_BLK(allctr, allctr->mbc_list.first), NULL); #ifdef USE_THREADS if (allctr->thread_safe) @@ -4319,22 +5697,23 @@ erts_alcu_stop(Allctr_t *allctr) void erts_alcu_init(AlcUInit_t *init) { - +#ifdef ERTS_SMP + int i; + for (i = 0; i <= ERTS_ALC_A_MAX; i++) { + ErtsAlcCPoolData_t *sentinel = &carrier_pool[i].sentinel; + erts_atomic_init_nob(&sentinel->next, (erts_aint_t) sentinel); + erts_atomic_init_nob(&sentinel->prev, (erts_aint_t) sentinel); + } +#endif + ASSERT(SBC_BLK_SZ_MASK == MBC_FBLK_SZ_MASK); /* see BLK_SZ */ #if HAVE_ERTS_MSEG - mseg_unit_size = erts_mseg_unit_size(); - - if (mseg_unit_size % sizeof(Unit_t)) /* A little paranoid... */ - erl_exit(-1, - "Mseg unit size (%d) not evenly divideble by " - "internal unit size of alloc_util (%d)\n", - mseg_unit_size, - sizeof(Unit_t)); - + ASSERT(erts_mseg_unit_size() == ERTS_SACRR_UNIT_SZ); max_mseg_carriers = init->mmc; - sys_alloc_carrier_size = MSEG_UNIT_CEILING(init->ycs); + sys_alloc_carrier_size = ERTS_SACRR_UNIT_CEILING(init->ycs); #else /* #if HAVE_ERTS_MSEG */ sys_alloc_carrier_size = ((init->ycs + 4095) / 4096) * 4096; #endif + allow_sys_alloc_carriers = init->sac; #ifdef DEBUG carrier_alignment = sizeof(Unit_t); @@ -4354,44 +5733,70 @@ erts_alcu_init(AlcUInit_t *init) * to erts_alcu_test() * \* */ -unsigned long -erts_alcu_test(unsigned long op, unsigned long a1, unsigned long a2) +UWord +erts_alcu_test(UWord op, UWord a1, UWord a2) { switch (op) { - case 0x000: return (unsigned long) BLK_SZ((Block_t *) a1); - case 0x001: return (unsigned long) BLK_UMEM_SZ((Block_t *) a1); - case 0x002: return (unsigned long) IS_PREV_BLK_FREE((Block_t *) a1); - case 0x003: return (unsigned long) IS_FREE_BLK((Block_t *) a1); - case 0x004: return (unsigned long) IS_LAST_BLK((Block_t *) a1); - case 0x005: return (unsigned long) UMEM2BLK((void *) a1); - case 0x006: return (unsigned long) BLK2UMEM((Block_t *) a1); - case 0x007: return (unsigned long) IS_SB_CARRIER((Carrier_t *) a1); - case 0x008: return (unsigned long) IS_SBC_BLK((Block_t *) a1); - case 0x009: return (unsigned long) IS_MB_CARRIER((Carrier_t *) a1); - case 0x00a: return (unsigned long) IS_MSEG_CARRIER((Carrier_t *) a1); - case 0x00b: return (unsigned long) CARRIER_SZ((Carrier_t *) a1); - case 0x00c: return (unsigned long) SBC2BLK((Allctr_t *) a1, + case 0x000: return (UWord) BLK_SZ((Block_t *) a1); + case 0x001: return (UWord) BLK_UMEM_SZ((Block_t *) a1); + case 0x002: return (UWord) IS_PREV_BLK_FREE((Block_t *) a1); + case 0x003: return (UWord) IS_FREE_BLK((Block_t *) a1); + case 0x004: return (UWord) IS_LAST_BLK((Block_t *) a1); + case 0x005: return (UWord) UMEM2BLK((void *) a1); + case 0x006: return (UWord) BLK2UMEM((Block_t *) a1); + case 0x007: return (UWord) IS_SB_CARRIER((Carrier_t *) a1); + case 0x008: return (UWord) IS_SBC_BLK((Block_t *) a1); + case 0x009: return (UWord) IS_MB_CARRIER((Carrier_t *) a1); + case 0x00a: return (UWord) IS_MSEG_CARRIER((Carrier_t *) a1); + case 0x00b: return (UWord) CARRIER_SZ((Carrier_t *) a1); + case 0x00c: return (UWord) SBC2BLK((Allctr_t *) a1, (Carrier_t *) a2); - case 0x00d: return (unsigned long) BLK2SBC((Allctr_t *) a1, - (Block_t *) a2); - case 0x00e: return (unsigned long) MBC2FBLK((Allctr_t *) a1, + case 0x00d: return (UWord) BLK_TO_SBC((Block_t *) a2); + case 0x00e: return (UWord) MBC_TO_FIRST_BLK((Allctr_t *) a1, (Carrier_t *) a2); - case 0x00f: return (unsigned long) FBLK2MBC((Allctr_t *) a1, + case 0x00f: return (UWord) FIRST_BLK_TO_MBC((Allctr_t *) a1, (Block_t *) a2); - case 0x010: return (unsigned long) ((Allctr_t *) a1)->mbc_list.first; - case 0x011: return (unsigned long) ((Allctr_t *) a1)->mbc_list.last; - case 0x012: return (unsigned long) ((Allctr_t *) a1)->sbc_list.first; - case 0x013: return (unsigned long) ((Allctr_t *) a1)->sbc_list.last; - case 0x014: return (unsigned long) ((Carrier_t *) a1)->next; - case 0x015: return (unsigned long) ((Carrier_t *) a1)->prev; - case 0x016: return (unsigned long) ABLK_HDR_SZ; - case 0x017: return (unsigned long) ((Allctr_t *) a1)->min_block_size; - case 0x018: return (unsigned long) NXT_BLK((Block_t *) a1); - case 0x019: return (unsigned long) PREV_BLK((Block_t *) a1); - case 0x01a: return (unsigned long) IS_FIRST_BLK((Block_t *) a1); - case 0x01b: return (unsigned long) sizeof(Unit_t); - default: ASSERT(0); return ~((unsigned long) 0); + case 0x010: return (UWord) ((Allctr_t *) a1)->mbc_list.first; + case 0x011: return (UWord) ((Allctr_t *) a1)->mbc_list.last; + case 0x012: return (UWord) ((Allctr_t *) a1)->sbc_list.first; + case 0x013: return (UWord) ((Allctr_t *) a1)->sbc_list.last; + case 0x014: return (UWord) ((Carrier_t *) a1)->next; + case 0x015: return (UWord) ((Carrier_t *) a1)->prev; + case 0x016: return (UWord) ABLK_HDR_SZ; + case 0x017: return (UWord) ((Allctr_t *) a1)->min_block_size; + case 0x018: return (UWord) NXT_BLK((Block_t *) a1); + case 0x019: return (UWord) PREV_BLK((Block_t *) a1); + case 0x01a: return (UWord) IS_MBC_FIRST_BLK((Allctr_t*)a1, (Block_t *) a2); + case 0x01b: return (UWord) sizeof(Unit_t); + case 0x01c: return (unsigned long) BLK_TO_MBC((Block_t*) a1); + case 0x01d: ((Allctr_t*) a1)->add_mbc((Allctr_t*)a1, (Carrier_t*)a2); break; + case 0x01e: ((Allctr_t*) a1)->remove_mbc((Allctr_t*)a1, (Carrier_t*)a2); break; +#ifdef ERTS_SMP + case 0x01f: return (UWord) sizeof(ErtsAlcCrrPool_t); + case 0x020: + SET_CARRIER_HDR((Carrier_t *) a2, 0, SCH_SYS_ALLOC|SCH_MBC, (Allctr_t *) a1); + cpool_init_carrier_data((Allctr_t *) a1, (Carrier_t *) a2); + return (UWord) a2; + case 0x021: + cpool_insert((Allctr_t *) a1, (Carrier_t *) a2); + return (UWord) a2; + case 0x022: + cpool_delete((Allctr_t *) a1, (Allctr_t *) a1, (Carrier_t *) a2); + return (UWord) a2; + case 0x023: return (UWord) cpool_is_empty((Allctr_t *) a1); + case 0x024: return (UWord) cpool_dbg_is_in_pool((Allctr_t *) a1, (Carrier_t *) a2); +#else + case 0x01f: return (UWord) 0; + case 0x020: return (UWord) 0; + case 0x021: return (UWord) 0; + case 0x022: return (UWord) 0; + case 0x023: return (UWord) 0; + case 0x024: return (UWord) 0; +#endif + + default: ASSERT(0); return ~((UWord) 0); } + return 0; } /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\ @@ -4399,6 +5804,20 @@ erts_alcu_test(unsigned long op, unsigned long a1, unsigned long a2) \* */ void +erts_alcu_assert_failed(char* expr, char* file, int line, char *func) +{ + fflush(stdout); + fprintf(stderr, "%s:%d:%s(): Assertion failed: %s\n", + file, line, func, expr); + fflush(stderr); +#if defined(__WIN__) || defined(__WIN32__) + DebugBreak(); +#else + abort(); +#endif +} + +void erts_alcu_verify_unused(Allctr_t *allctr) { UWord no; @@ -4406,12 +5825,10 @@ erts_alcu_verify_unused(Allctr_t *allctr) no = allctr->sbcs.curr.norm.mseg.no; no += allctr->sbcs.curr.norm.sys_alloc.no; no += allctr->mbcs.blocks.curr.no; - no += allctr->sbmbcs.blocks.curr.no; if (no) { UWord sz = allctr->sbcs.blocks.curr.size; sz += allctr->mbcs.blocks.curr.size; - sz += allctr->sbmbcs.blocks.curr.size; erl_exit(ERTS_ABORT_EXIT, "%salloc() used when expected to be unused!\n" "Total amount of blocks allocated: %bpu\n" @@ -4432,6 +5849,13 @@ erts_alcu_verify_unused_ts(Allctr_t *allctr) #endif } +#ifdef DEBUG +int is_sbc_blk(Block_t* blk) +{ + return IS_SBC_BLK(blk); +} +#endif + #ifdef ERTS_ALLOC_UTIL_HARD_DEBUG static void @@ -4441,34 +5865,37 @@ check_blk_carrier(Allctr_t *allctr, Block_t *iblk) CarrierList_t *cl; if (IS_SBC_BLK(iblk)) { - Carrier_t *sbc = BLK2SBC(allctr, iblk); + Carrier_t *sbc = BLK_TO_SBC(iblk); ASSERT(SBC2BLK(allctr, sbc) == iblk); - ASSERT(IS_ALLOCED_BLK(iblk)); - ASSERT(IS_FIRST_BLK(iblk)); - ASSERT(IS_LAST_BLK(iblk)); - ASSERT(CARRIER_SZ(sbc) - allctr->sbc_header_size >= BLK_SZ(iblk)); + ASSERT(CARRIER_SZ(sbc) - SBC_HEADER_SIZE >= SBC_BLK_SZ(iblk)); #if HAVE_ERTS_MSEG if (IS_MSEG_CARRIER(sbc)) { - ASSERT(CARRIER_SZ(sbc) % mseg_unit_size == 0); + ASSERT(CARRIER_SZ(sbc) % ERTS_SACRR_UNIT_SZ == 0); } #endif crr = sbc; cl = &allctr->sbc_list; } else { - Carrier_t *mbc = NULL; Block_t *prev_blk = NULL; Block_t *blk; char *carrier_end; Uint is_free_blk; Uint tot_blk_sz; Uint blk_sz; + int has_wrapped_around = 0; blk = iblk; tot_blk_sz = 0; + crr = BLK_TO_MBC(blk); + ASSERT(IS_MB_CARRIER(crr)); + /* Step around the carrier one whole lap starting at 'iblk' + */ while (1) { + ASSERT(IS_MBC_BLK(blk)); + ASSERT(BLK_TO_MBC(blk) == crr); if (prev_blk) { ASSERT(NXT_BLK(prev_blk) == blk); @@ -4481,18 +5908,16 @@ check_blk_carrier(Allctr_t *allctr, Block_t *iblk) } } - if (mbc) { + if (has_wrapped_around) { + ASSERT(((Block_t *) crr) < blk); if (blk == iblk) break; - ASSERT(((Block_t *) mbc) < blk && blk < iblk); + ASSERT(blk < iblk); } else ASSERT(blk >= iblk); - - ASSERT(IS_MBC_BLK(blk)); - - blk_sz = BLK_SZ(blk); + blk_sz = MBC_BLK_SZ(blk); ASSERT(blk_sz % sizeof(Unit_t) == 0); ASSERT(blk_sz >= allctr->min_block_size); @@ -4500,48 +5925,44 @@ check_blk_carrier(Allctr_t *allctr, Block_t *iblk) tot_blk_sz += blk_sz; is_free_blk = (int) IS_FREE_BLK(blk); - if(is_free_blk) { - if (IS_NOT_LAST_BLK(blk)) - ASSERT(*((UWord *) (((char *) blk)+blk_sz-sizeof(UWord))) - == blk_sz); - } + ASSERT(!is_free_blk + || IS_LAST_BLK(blk) + || PREV_BLK_SZ(((char *) blk)+blk_sz) == blk_sz); if (allctr->check_block) (*allctr->check_block)(allctr, blk, (int) is_free_blk); if (IS_LAST_BLK(blk)) { carrier_end = ((char *) NXT_BLK(blk)); - mbc = *((Carrier_t **) NXT_BLK(blk)); + has_wrapped_around = 1; prev_blk = NULL; - blk = MBC2FBLK(allctr, mbc); - ASSERT(IS_FIRST_BLK(blk)); + blk = MBC_TO_FIRST_BLK(allctr, crr); + ASSERT(IS_MBC_FIRST_BLK(allctr,blk)); } else { prev_blk = blk; blk = NXT_BLK(blk); } } - - ASSERT(IS_MB_CARRIER(mbc)); - ASSERT((((char *) mbc) - + allctr->mbc_header_size + + ASSERT((((char *) crr) + + MBC_HEADER_SIZE(allctr) + tot_blk_sz) == carrier_end); - ASSERT(((char *) mbc) + CARRIER_SZ(mbc) - sizeof(Unit_t) <= carrier_end - && carrier_end <= ((char *) mbc) + CARRIER_SZ(mbc)); + ASSERT(((char *) crr) + CARRIER_SZ(crr) - sizeof(Unit_t) <= carrier_end + && carrier_end <= ((char *) crr) + CARRIER_SZ(crr)); if (allctr->check_mbc) - (*allctr->check_mbc)(allctr, mbc); + (*allctr->check_mbc)(allctr, crr); #if HAVE_ERTS_MSEG - if (IS_MSEG_CARRIER(mbc)) { - ASSERT(CARRIER_SZ(mbc) % mseg_unit_size == 0); + if (IS_MSEG_CARRIER(crr)) { + ASSERT(CARRIER_SZ(crr) % ERTS_SACRR_UNIT_SZ == 0); } #endif - crr = mbc; cl = &allctr->mbc_list; } -#if 0 /* FIXIT sbmbc */ +#ifdef DEBUG if (cl->first == crr) { ASSERT(!crr->prev); } @@ -4559,4 +5980,5 @@ check_blk_carrier(Allctr_t *allctr, Block_t *iblk) #endif } -#endif +#endif /* ERTS_ALLOC_UTIL_HARD_DEBUG */ + diff --git a/erts/emulator/beam/erl_alloc_util.h b/erts/emulator/beam/erl_alloc_util.h index cedf4ccf85..7be6b1ed9d 100644 --- a/erts/emulator/beam/erl_alloc_util.h +++ b/erts/emulator/beam/erl_alloc_util.h @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 2002-2012. All Rights Reserved. + * Copyright Ericsson AB 2002-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -32,6 +32,7 @@ typedef struct Allctr_t_ Allctr_t; typedef struct { UWord ycs; UWord mmc; + int sac; } AlcUInit_t; typedef struct { @@ -55,8 +56,7 @@ typedef struct { UWord lmbcs; UWord smbcs; UWord mbcgs; - UWord sbmbct; - UWord sbmbcs; + int acul; void *fix; size_t *fix_type_size; @@ -76,7 +76,8 @@ typedef struct { #define ERTS_DEFAULT_ALCU_INIT { \ 1024*1024, /* (bytes) ycs: sys_alloc carrier size */\ - 1024 /* (amount) mmc: max mseg carriers */\ + ~((UWord) 0), /* (amount) mmc: max mseg carriers */\ + 1 /* (bool) sac: sys_alloc carriers */\ } #define ERTS_DEFAULT_ALLCTR_INIT { \ @@ -96,12 +97,11 @@ typedef struct { 50, /* (%) rmbcmt: rel mbc move threshold */\ 1024*1024, /* (bytes) mmbcs: main multiblock carrier size */\ 256, /* (amount) mmsbc: max mseg sbcs */\ - 10, /* (amount) mmmbc: max mseg mbcs */\ + ~((UWord) 0), /* (amount) mmmbc: max mseg mbcs */ \ 10*1024*1024, /* (bytes) lmbcs: largest mbc size */\ 1024*1024, /* (bytes) smbcs: smallest mbc size */\ 10, /* (amount) mbcgs: mbc growth stages */\ - 256, /* (bytes) sbmbct: small block mbc threshold */\ - 8*1024, /* (bytes) sbmbcs: small block mbc size */ \ + 0, /* (%) acul: abandon carrier utilization limit */\ /* --- Data not options -------------------------------------------- */\ NULL, /* (ptr) fix */\ NULL /* (ptr) fix_type_size */\ @@ -111,7 +111,8 @@ typedef struct { #define ERTS_DEFAULT_ALCU_INIT { \ 128*1024, /* (bytes) ycs: sys_alloc carrier size */\ - 1024 /* (amount) mmc: max mseg carriers */\ + 1024, /* (amount) mmc: max mseg carriers */\ + 1 /* (bool) sac: sys_alloc carriers */\ } #define ERTS_DEFAULT_ALLCTR_INIT { \ @@ -130,12 +131,11 @@ typedef struct { 80, /* (%) rsbcmt: rel sbc move threshold */\ 128*1024, /* (bytes) mmbcs: main multiblock carrier size */\ 256, /* (amount) mmsbc: max mseg sbcs */\ - 10, /* (amount) mmmbc: max mseg mbcs */\ + ~((UWord) 0), /* (amount) mmmbc: max mseg mbcs */ \ 1024*1024, /* (bytes) lmbcs: largest mbc size */\ 128*1024, /* (bytes) smbcs: smallest mbc size */\ 10, /* (amount) mbcgs: mbc growth stages */\ - 256, /* (bytes) sbmbct: small block mbc threshold */\ - 8*1024, /* (bytes) sbmbcs: small block mbc size */ \ + 0, /* (%) acul: abandon carrier utilization limit */\ /* --- Data not options -------------------------------------------- */\ NULL, /* (ptr) fix */\ NULL /* (ptr) fix_type_size */\ @@ -165,8 +165,8 @@ void erts_alcu_free_thr_pref(ErtsAlcType_t, void *, void *); #endif Eterm erts_alcu_au_info_options(int *, void *, Uint **, Uint *); Eterm erts_alcu_info_options(Allctr_t *, int *, void *, Uint **, Uint *); -Eterm erts_alcu_sz_info(Allctr_t *, int, int *, void *, Uint **, Uint *); -Eterm erts_alcu_info(Allctr_t *, int, int *, void *, Uint **, Uint *); +Eterm erts_alcu_sz_info(Allctr_t *, int, int, int *, void *, Uint **, Uint *); +Eterm erts_alcu_info(Allctr_t *, int, int, int *, void *, Uint **, Uint *); void erts_alcu_init(AlcUInit_t *); void erts_alcu_current_size(Allctr_t *, AllctrSize_t *, ErtsAlcUFixInfo_t *, int); @@ -181,7 +181,6 @@ erts_aint32_t erts_alcu_fix_alloc_shrink(Allctr_t *, erts_aint32_t); #define ERL_ALLOC_UTIL_IMPL__ #define ERTS_ALCU_FLG_FAIL_REALLOC_MOVE (((Uint32) 1) << 0) -#define ERTS_ALCU_FLG_SBMBC (((Uint32) 1) << 1) #ifdef USE_THREADS #define ERL_THREADS_EMU_INTERNAL__ @@ -216,40 +215,143 @@ erts_aint32_t erts_alcu_fix_alloc_shrink(Allctr_t *, erts_aint32_t); #define UNIT_FLOOR(X) ((X) & UNIT_MASK) #define UNIT_CEILING(X) UNIT_FLOOR((X) + INV_UNIT_MASK) +#define FLG_MASK INV_UNIT_MASK +#define SBC_BLK_SZ_MASK UNIT_MASK +#define MBC_FBLK_SZ_MASK UNIT_MASK +#define CARRIER_SZ_MASK UNIT_MASK + +#if ERTS_HAVE_MSEG_SUPER_ALIGNED \ + || (!HAVE_ERTS_MSEG && ERTS_HAVE_ERTS_SYS_ALIGNED_ALLOC) +# ifndef MSEG_ALIGN_BITS +# define ERTS_SUPER_ALIGN_BITS MSEG_ALIGN_BITS +# else +# define ERTS_SUPER_ALIGN_BITS 18 +# endif +# ifdef ARCH_64 +# define MBC_ABLK_OFFSET_BITS 24 +# else +# define MBC_ABLK_OFFSET_BITS 9 + /* Affects hard limits for sbct and lmbcs documented in erts_alloc.xml */ +# endif +# define ERTS_SACRR_UNIT_SHIFT ERTS_SUPER_ALIGN_BITS +# define ERTS_SACRR_UNIT_SZ (1 << ERTS_SACRR_UNIT_SHIFT) +# define ERTS_SACRR_UNIT_MASK ((~(UWord)0) << ERTS_SACRR_UNIT_SHIFT) +# define ERTS_SACRR_UNIT_FLOOR(X) ((X) & ERTS_SACRR_UNIT_MASK) +# define ERTS_SACRR_UNIT_CEILING(X) ERTS_SACRR_UNIT_FLOOR((X) + ~ERTS_SACRR_UNIT_MASK) +# define ERTS_SA_MB_CARRIERS 1 +#else +# define ERTS_SA_MB_CARRIERS 0 +# define MBC_ABLK_OFFSET_BITS 0 /* no carrier offset in block header */ +#endif +#if ERTS_HAVE_MSEG_SUPER_ALIGNED && !ERTS_HAVE_ERTS_SYS_ALIGNED_ALLOC +# define ERTS_SUPER_ALIGNED_MSEG_ONLY 1 +#else +# define ERTS_SUPER_ALIGNED_MSEG_ONLY 0 +#endif -#define SZ_MASK (~((UWord) 0) << 3) -#define FLG_MASK (~(SZ_MASK)) - +#if MBC_ABLK_OFFSET_BITS +# define MBC_ABLK_OFFSET_SHIFT (sizeof(UWord)*8 - MBC_ABLK_OFFSET_BITS) +# define MBC_ABLK_OFFSET_MASK (~((UWord)0) << MBC_ABLK_OFFSET_SHIFT) +# define MBC_ABLK_SZ_MASK (~MBC_ABLK_OFFSET_MASK & ~FLG_MASK) +#else +# define MBC_ABLK_SZ_MASK (~FLG_MASK) +#endif -#define BLK_SZ(B) \ - (*((Block_t *) (B)) & SZ_MASK) +#define MBC_ABLK_SZ(B) (ASSERT(!is_sbc_blk(B)), (B)->bhdr & MBC_ABLK_SZ_MASK) +#define MBC_FBLK_SZ(B) (ASSERT(!is_sbc_blk(B)), (B)->bhdr & MBC_FBLK_SZ_MASK) +#define SBC_BLK_SZ(B) (ASSERT(is_sbc_blk(B)), (B)->bhdr & SBC_BLK_SZ_MASK) #define CARRIER_SZ(C) \ - ((C)->chdr & SZ_MASK) - -extern int erts_have_sbmbc_alloc; + ((C)->chdr & CARRIER_SZ_MASK) typedef union {char c[ERTS_ALLOC_ALIGN_BYTES]; long l; double d;} Unit_t; +#ifdef ERTS_SMP + +typedef struct { + erts_atomic_t next; + erts_atomic_t prev; + Allctr_t *orig_allctr; + ErtsThrPrgrVal thr_prgr; + erts_atomic_t max_size; + UWord abandon_limit; + UWord blocks; + UWord blocks_size; +} ErtsAlcCPoolData_t; + +#endif + typedef struct Carrier_t_ Carrier_t; struct Carrier_t_ { UWord chdr; Carrier_t *next; Carrier_t *prev; + erts_smp_atomic_t allctr; +#ifdef ERTS_SMP + ErtsAlcCPoolData_t cpool; /* Overwritten by block if sbc */ +#endif }; +#define ERTS_ALC_CARRIER_TO_ALLCTR(C) \ + ((Allctr_t *) (erts_smp_atomic_read_nob(&(C)->allctr) & ~FLG_MASK)) + typedef struct { Carrier_t *first; Carrier_t *last; } CarrierList_t; -typedef UWord Block_t; -typedef UWord FreeBlkFtr_t; - typedef struct { - UWord giga_no; - UWord no; -} CallCounter_t; + UWord bhdr; +#if !MBC_ABLK_OFFSET_BITS + Carrier_t *carrier; +#else + union { + Carrier_t *carrier; /* if free */ + char udata__[1]; /* if allocated */ + }u; +#endif +} Block_t; + +#define THIS_FREE_BLK_HDR_FLG (((UWord) 1) << 0) +#define PREV_FREE_BLK_HDR_FLG (((UWord) 1) << 1) +#define LAST_BLK_HDR_FLG (((UWord) 1) << 2) + +#define SBC_BLK_HDR_FLG /* Special flag combo for (allocated) SBC blocks */\ + (THIS_FREE_BLK_HDR_FLG | PREV_FREE_BLK_HDR_FLG | LAST_BLK_HDR_FLG) + +/* + * FREE_LAST_MBC_BLK_HDR_FLGS is a special flag combo used for + * distinguishing empty mbc's from allocated blocks in + * handle_delayed_dealloc(). + */ +#define FREE_LAST_MBC_BLK_HDR_FLGS (THIS_FREE_BLK_HDR_FLG | LAST_BLK_HDR_FLG) + +#define IS_FREE_LAST_MBC_BLK(B) \ + (((B)->bhdr & FLG_MASK) == FREE_LAST_MBC_BLK_HDR_FLGS) + +#define IS_SBC_BLK(B) (((B)->bhdr & FLG_MASK) == SBC_BLK_HDR_FLG) +#define IS_MBC_BLK(B) (!IS_SBC_BLK((B))) +#define IS_FREE_BLK(B) (ASSERT(IS_MBC_BLK(B)), \ + (B)->bhdr & THIS_FREE_BLK_HDR_FLG) + +#if MBC_ABLK_OFFSET_BITS +# define FBLK_TO_MBC(B) (ASSERT(IS_MBC_BLK(B) && IS_FREE_BLK(B)), \ + (B)->u.carrier) +# define ABLK_TO_MBC(B) \ + (ASSERT(IS_MBC_BLK(B) && !IS_FREE_BLK(B)), \ + (Carrier_t*)((ERTS_SACRR_UNIT_FLOOR((UWord)(B)) - \ + (((B)->bhdr >> MBC_ABLK_OFFSET_SHIFT) << ERTS_SACRR_UNIT_SHIFT)))) +# define BLK_TO_MBC(B) (IS_FREE_BLK(B) ? FBLK_TO_MBC(B) : ABLK_TO_MBC(B)) +#else +# define FBLK_TO_MBC(B) ((B)->carrier) +# define ABLK_TO_MBC(B) ((B)->carrier) +# define BLK_TO_MBC(B) ((B)->carrier) +#endif +#define MBC_BLK_SZ(B) (IS_FREE_BLK(B) ? MBC_FBLK_SZ(B) : MBC_ABLK_SZ(B)) + +typedef UWord FreeBlkFtr_t; /* Footer of a free block */ + +typedef Uint64 CallCounter_t; typedef struct { UWord no; @@ -262,7 +364,6 @@ typedef struct { StatValues_t mseg; StatValues_t sys_alloc; } norm; - StatValues_t small_block; } curr; StatValues_t max; StatValues_t max_ever; @@ -322,10 +423,20 @@ typedef struct { size_t type_size; SWord list_size; void *list; - SWord max_used; - SWord limit; - SWord allocated; - SWord used; + union { + struct { + SWord max_used; + SWord limit; + SWord allocated; + SWord used; + } nocpool; + struct { + int min_list_size; + int shrink_list; + UWord allocated; + UWord used; + } cpool; + } u; } ErtsAlcFixList_t; struct Allctr_t_ { @@ -373,8 +484,6 @@ struct Allctr_t_ { Uint largest_mbc_size; Uint smallest_mbc_size; Uint mbc_growth_stages; - Uint sbmbc_threshold; - Uint sbmbc_size; #if HAVE_ERTS_MSEG ErtsMsegOpt_t mseg_opt; @@ -382,30 +491,49 @@ struct Allctr_t_ { /* */ Uint mbc_header_size; - Uint sbc_header_size; Uint min_mbc_size; Uint min_mbc_first_free_size; Uint min_block_size; /* Carriers */ - CarrierList_t sbmbc_list; CarrierList_t mbc_list; CarrierList_t sbc_list; +#ifdef ERTS_SMP + struct { + CarrierList_t dc_list; + UWord abandon_limit; + int disable_abandon; + int check_limit_count; + int util_limit; + struct { + erts_atomic_t blocks_size; + erts_atomic_t no_blocks; + erts_atomic_t carriers_size; + erts_atomic_t no_carriers; + } stat; + } cpool; +#endif /* Main carrier (if there is one) */ Carrier_t * main_carrier; /* Callback functions (first 4 are mandatory) */ Block_t * (*get_free_block) (Allctr_t *, Uint, - Block_t *, Uint, Uint32); - void (*link_free_block) (Allctr_t *, Block_t *, Uint32); - void (*unlink_free_block) (Allctr_t *, Block_t *, Uint32); + Block_t *, Uint); + void (*link_free_block) (Allctr_t *, Block_t *); + void (*unlink_free_block) (Allctr_t *, Block_t *); Eterm (*info_options) (Allctr_t *, char *, int *, void *, Uint **, Uint *); Uint (*get_next_mbc_size) (Allctr_t *); - void (*creating_mbc) (Allctr_t *, Carrier_t *, Uint32); - void (*destroying_mbc) (Allctr_t *, Carrier_t *, Uint32); + void (*creating_mbc) (Allctr_t *, Carrier_t *); + void (*destroying_mbc) (Allctr_t *, Carrier_t *); + + /* The three callbacks below are needed to support carrier migration */ + void (*add_mbc) (Allctr_t *, Carrier_t *); + void (*remove_mbc) (Allctr_t *, Carrier_t *); + UWord (*largest_fblk_in_mbc) (Allctr_t *, Carrier_t *); + void (*init_atoms) (void); #ifdef ERTS_ALLOC_UTIL_HARD_DEBUG @@ -437,8 +565,6 @@ struct Allctr_t_ { CallCounter_t this_alloc; CallCounter_t this_free; CallCounter_t this_realloc; - CallCounter_t sbmbc_alloc; - CallCounter_t sbmbc_free; CallCounter_t mseg_alloc; CallCounter_t mseg_dealloc; CallCounter_t mseg_realloc; @@ -449,8 +575,7 @@ struct Allctr_t_ { CarriersStats_t sbcs; CarriersStats_t mbcs; - CarriersStats_t sbmbcs; - + #ifdef DEBUG #ifdef USE_THREADS struct { @@ -467,8 +592,13 @@ void erts_alcu_stop(Allctr_t *); void erts_alcu_verify_unused(Allctr_t *); void erts_alcu_verify_unused_ts(Allctr_t *allctr); -unsigned long erts_alcu_test(unsigned long, unsigned long, unsigned long); +UWord erts_alcu_test(UWord, UWord, UWord); + +void erts_alcu_assert_failed(char* expr, char* file, int line, char *func); +#ifdef DEBUG +int is_sbc_blk(Block_t*); +#endif #endif /* #if defined(GET_ERL_ALLOC_UTIL_IMPL) diff --git a/erts/emulator/beam/erl_ao_firstfit_alloc.c b/erts/emulator/beam/erl_ao_firstfit_alloc.c index 5bdb752d3a..396aa88e0b 100644 --- a/erts/emulator/beam/erl_ao_firstfit_alloc.c +++ b/erts/emulator/beam/erl_ao_firstfit_alloc.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 2003-2011. All Rights Reserved. + * Copyright Ericsson AB 2003-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -28,11 +28,17 @@ * * This module is a callback-module for erl_alloc_util.c * - * Algorithm: The tree nodes are free-blocks ordered in address order. + * AOFF Algorithm: + * The tree nodes are ordered in address order. * Every node also keeps the size of the largest block in its - * sub-tree ('max_size'). By that we can start from root and keep + * sub-tree ('max_sz'). By that we can start from root and keep * left (for low addresses) while dismissing entire sub-trees with * too small blocks. + * Bestfit within carrier: + * The only difference for "bestfit within carrier" is the tree + * sorting order. Blocks within the same carrier are sorted + * wrt size instead of address. The 'max_sz' field is maintained + * in order to dismiss entire carriers with too small blocks. * * Authors: Rickard Green/Sverker Eriksson */ @@ -62,6 +68,15 @@ # define LEFT_VISITED_FLG (((Uint) 1) << 2) # define RIGHT_VISITED_FLG (((Uint) 1) << 3) #endif +#ifdef DEBUG +# define IS_BF_FLG (((Uint) 1) << 4) +#endif + +#define IS_TREE_NODE(N) (((AOFF_RBTree_t *) (N))->flags & TREE_NODE_FLG) +#define IS_LIST_ELEM(N) (!IS_TREE_NODE(((AOFF_RBTree_t *) (N)))) + +#define SET_TREE_NODE(N) (((AOFF_RBTree_t *) (N))->flags |= TREE_NODE_FLG) +#define SET_LIST_ELEM(N) (((AOFF_RBTree_t *) (N))->flags &= ~TREE_NODE_FLG) #define IS_RED(N) (((AOFF_RBTree_t *) (N)) \ && ((AOFF_RBTree_t *) (N))->flags & RED_FLG) @@ -70,9 +85,6 @@ #define SET_RED(N) (((AOFF_RBTree_t *) (N))->flags |= RED_FLG) #define SET_BLACK(N) (((AOFF_RBTree_t *) (N))->flags &= ~RED_FLG) -#undef ASSERT -#define ASSERT ASSERT_EXPR - #if 1 #define RBT_ASSERT ASSERT #else @@ -85,24 +97,59 @@ typedef struct AOFF_RBTree_t_ AOFF_RBTree_t; struct AOFF_RBTree_t_ { Block_t hdr; - Uint flags; AOFF_RBTree_t *parent; AOFF_RBTree_t *left; AOFF_RBTree_t *right; - Uint max_sz; /* of all blocks in this sub-tree */ + Uint32 flags; + Uint32 max_sz; /* of all blocks in this sub-tree */ }; +#define AOFF_BLK_SZ(B) MBC_FBLK_SZ(&(B)->hdr) + +/* BF block nodes keeps list of all with equal size + */ +typedef struct { + AOFF_RBTree_t t; + AOFF_RBTree_t *next; +}AOFF_RBTreeList_t; + +#define LIST_NEXT(N) (((AOFF_RBTreeList_t*) (N))->next) +#define LIST_PREV(N) (((AOFF_RBTreeList_t*) (N))->t.parent) + +typedef struct AOFF_Carrier_t_ AOFF_Carrier_t; + +struct AOFF_Carrier_t_ { + Carrier_t crr; + AOFF_RBTree_t rbt_node; /* My node in the carrier tree */ + AOFF_RBTree_t* root; /* Root of my block tree */ +}; +#define RBT_NODE_TO_MBC(PTR) ((AOFF_Carrier_t*)((char*)(PTR) - offsetof(AOFF_Carrier_t, rbt_node))) + +/* + To support carrier migration we keep two kinds of rb-trees: + 1. One tree of carriers for each allocator instance. + 2. One tree of free blocks for each carrier. + Both trees use the same node structure AOFF_RBTree_t and implementation. + Carrier nodes thus contain a phony Block_t header 'rbt_node.hdr'. + The size value of such a phony block is the size of the largest free block in + that carrier, i.e same as 'max_sz' of the root node of its block tree. +*/ #ifdef HARD_DEBUG -static AOFF_RBTree_t * check_tree(AOFF_RBTree_t* root, Uint); +# define HARD_CHECK_IS_MEMBER(ROOT,NODE) rbt_assert_is_member(ROOT,NODE) +# define HARD_CHECK_TREE(CRR,FLV,ROOT,SZ) check_tree(CRR, FLV, ROOT, SZ) +static AOFF_RBTree_t * check_tree(Carrier_t* within_crr, enum AOFF_Flavor flavor, AOFF_RBTree_t* root, Uint); +#else +# define HARD_CHECK_IS_MEMBER(ROOT,NODE) +# define HARD_CHECK_TREE(CRR,FLV,ROOT,SZ) #endif -/* Calculate 'max_size' of tree node x by only looking at the direct children - * of x and x itself. +/* Calculate 'max_sz' of tree node x by only looking at 'max_sz' of the + * direct children of x and the size x itself. */ static ERTS_INLINE Uint node_max_size(AOFF_RBTree_t *x) { - Uint sz = BLK_SZ(x); + Uint sz = AOFF_BLK_SZ(x); if (x->left && x->left->max_sz > sz) { sz = x->left->max_sz; } @@ -112,7 +159,7 @@ static ERTS_INLINE Uint node_max_size(AOFF_RBTree_t *x) return sz; } -/* Set new possibly lower 'max_size' of node and propagate change toward root +/* Set new possibly lower 'max_sz' of node and propagate change toward root */ static ERTS_INLINE void lower_max_size(AOFF_RBTree_t *node, AOFF_RBTree_t* stop_at) @@ -131,32 +178,53 @@ static ERTS_INLINE void lower_max_size(AOFF_RBTree_t *node, else ASSERT(new_max == old_max); } +static ERTS_INLINE SWord cmp_blocks(enum AOFF_Flavor flavor, + AOFF_RBTree_t* lhs, AOFF_RBTree_t* rhs) +{ + ASSERT(lhs != rhs); + ASSERT(flavor == AOFF_AOFF || FBLK_TO_MBC(&lhs->hdr) == FBLK_TO_MBC(&rhs->hdr)); + if (flavor != AOFF_AOFF) { + SWord diff = (SWord)AOFF_BLK_SZ(lhs) - (SWord)AOFF_BLK_SZ(rhs); + if (diff || flavor == AOFF_BF) return diff; + } + return (char*)lhs - (char*)rhs; +} + +static ERTS_INLINE SWord cmp_cand_blk(enum AOFF_Flavor flavor, + Block_t* cand_blk, AOFF_RBTree_t* rhs) +{ + if (flavor != AOFF_AOFF) { + if (BLK_TO_MBC(cand_blk) == FBLK_TO_MBC(&rhs->hdr)) { + SWord diff = (SWord)MBC_BLK_SZ(cand_blk) - (SWord)MBC_FBLK_SZ(&rhs->hdr); + if (diff || flavor == AOFF_BF) return diff; + } + } + return (char*)cand_blk - (char*)rhs; +} + /* Prototypes of callback functions */ -static Block_t* aoff_get_free_block(Allctr_t *, Uint, Block_t *, Uint, Uint32 flags); -static void aoff_link_free_block(Allctr_t *, Block_t*, Uint32 flags); -static void aoff_unlink_free_block(Allctr_t *allctr, Block_t *del, Uint32 flags); +static Block_t* aoff_get_free_block(Allctr_t *, Uint, Block_t *, Uint); +static void aoff_link_free_block(Allctr_t *, Block_t*); +static void aoff_unlink_free_block(Allctr_t *allctr, Block_t *del); +static void aoff_creating_mbc(Allctr_t*, Carrier_t*); +static void aoff_destroying_mbc(Allctr_t*, Carrier_t*); +static void aoff_add_mbc(Allctr_t*, Carrier_t*); +static void aoff_remove_mbc(Allctr_t*, Carrier_t*); +static UWord aoff_largest_fblk_in_mbc(Allctr_t*, Carrier_t*); + +/* Generic tree functions used by both carrier and block trees. */ +static void rbt_delete(AOFF_RBTree_t** root, AOFF_RBTree_t* del); +static void rbt_insert(enum AOFF_Flavor flavor, AOFF_RBTree_t** root, AOFF_RBTree_t* blk); +static AOFF_RBTree_t* rbt_search(AOFF_RBTree_t* root, Uint size); +#ifdef HARD_DEBUG +static int rbt_assert_is_member(AOFF_RBTree_t* root, AOFF_RBTree_t* node); +#endif static Eterm info_options(Allctr_t *, char *, int *, void *, Uint **, Uint *); static void init_atoms(void); - -#ifdef DEBUG - -/* Destroy all tree fields */ -#define DESTROY_TREE_NODE(N) \ - sys_memset((void *) (((Block_t *) (N)) + 1), \ - 0xff, \ - (sizeof(AOFF_RBTree_t) - sizeof(Block_t))) - -#else - -#define DESTROY_TREE_NODE(N) - -#endif - - static int atoms_initialized = 0; void @@ -183,10 +251,12 @@ erts_aoffalc_start(AOFFAllctr_t *alc, sys_memcpy((void *) alc, (void *) &zero.allctr, sizeof(AOFFAllctr_t)); - allctr->mbc_header_size = sizeof(Carrier_t); + alc->flavor = aoffinit->flavor; + allctr->mbc_header_size = sizeof(AOFF_Carrier_t); allctr->min_mbc_size = MIN_MBC_SZ; allctr->min_mbc_first_free_size = MIN_MBC_FIRST_FREE_SZ; - allctr->min_block_size = sizeof(AOFF_RBTree_t); + allctr->min_block_size = (aoffinit->flavor == AOFF_BF ? + sizeof(AOFF_RBTreeList_t):sizeof(AOFF_RBTree_t)); allctr->vsn_str = ERTS_ALC_AOFF_ALLOC_VSN_STR; @@ -195,12 +265,15 @@ erts_aoffalc_start(AOFFAllctr_t *alc, allctr->get_free_block = aoff_get_free_block; allctr->link_free_block = aoff_link_free_block; - allctr->unlink_free_block = aoff_unlink_free_block; + allctr->unlink_free_block = aoff_unlink_free_block; allctr->info_options = info_options; allctr->get_next_mbc_size = NULL; - allctr->creating_mbc = NULL; - allctr->destroying_mbc = NULL; + allctr->creating_mbc = aoff_creating_mbc; + allctr->destroying_mbc = aoff_destroying_mbc; + allctr->add_mbc = aoff_add_mbc; + allctr->remove_mbc = aoff_remove_mbc; + allctr->largest_fblk_in_mbc = aoff_largest_fblk_in_mbc; allctr->init_atoms = init_atoms; #ifdef ERTS_ALLOC_UTIL_HARD_DEBUG @@ -303,10 +376,7 @@ replace(AOFF_RBTree_t **root, AOFF_RBTree_t *x, AOFF_RBTree_t *y) y->parent = x->parent; y->right = x->right; y->left = x->left; - - y->max_sz = x->max_sz; - lower_max_size(y, NULL); - DESTROY_TREE_NODE(x); + y->max_sz = x->max_sz; } static void @@ -403,21 +473,72 @@ tree_insert_fixup(AOFF_RBTree_t** root, AOFF_RBTree_t *blk) } static void -aoff_unlink_free_block(Allctr_t *allctr, Block_t *del, Uint32 flags) +aoff_unlink_free_block(Allctr_t *allctr, Block_t *blk) +{ + AOFFAllctr_t* alc = (AOFFAllctr_t*)allctr; + AOFF_RBTree_t* del = (AOFF_RBTree_t*)blk; + AOFF_Carrier_t *crr = (AOFF_Carrier_t*) FBLK_TO_MBC(&del->hdr); + + ASSERT(crr->rbt_node.hdr.bhdr == crr->root->max_sz); + HARD_CHECK_TREE(&crr->crr, alc->flavor, crr->root, 0); + + if (alc->flavor == AOFF_BF) { + ASSERT(del->flags & IS_BF_FLG); + if (IS_LIST_ELEM(del)) { + /* Remove from list */ + ASSERT(LIST_PREV(del)); + ASSERT(LIST_PREV(del)->flags & IS_BF_FLG); + LIST_NEXT(LIST_PREV(del)) = LIST_NEXT(del); + if (LIST_NEXT(del)) { + ASSERT(LIST_NEXT(del)->flags & IS_BF_FLG); + LIST_PREV(LIST_NEXT(del)) = LIST_PREV(del); + } + return; + } + else if (LIST_NEXT(del)) { + /* Replace tree node by next element in list... */ + + ASSERT(AOFF_BLK_SZ(LIST_NEXT(del)) == AOFF_BLK_SZ(del)); + ASSERT(IS_LIST_ELEM(LIST_NEXT(del))); + + replace(&crr->root, (AOFF_RBTree_t*)del, LIST_NEXT(del)); + + HARD_CHECK_TREE(&crr->crr, alc->flavor, crr->root, 0); + return; + } + } + + rbt_delete(&crr->root, (AOFF_RBTree_t*)del); + + HARD_CHECK_TREE(&crr->crr, alc->flavor, crr->root, 0); + + /* Update the carrier tree with a potentially new (lower) max_sz + */ + if (crr->root) { + if (crr->rbt_node.hdr.bhdr == crr->root->max_sz) { + return; + } + ASSERT(crr->rbt_node.hdr.bhdr > crr->root->max_sz); + crr->rbt_node.hdr.bhdr = crr->root->max_sz; + } + else { + crr->rbt_node.hdr.bhdr = 0; + } + lower_max_size(&crr->rbt_node, NULL); +} + + +static void +rbt_delete(AOFF_RBTree_t** root, AOFF_RBTree_t* del) { - AOFFAllctr_t *alc = (AOFFAllctr_t *) allctr; - AOFF_RBTree_t **root = ((flags & ERTS_ALCU_FLG_SBMBC) - ? &alc->sbmbc_root : &alc->mbc_root); Uint spliced_is_black; - AOFF_RBTree_t *x, *y, *z = (AOFF_RBTree_t *) del; + AOFF_RBTree_t *x, *y, *z = del; AOFF_RBTree_t null_x; /* null_x is used to get the fixup started when we splice out a node without children. */ - null_x.parent = NULL; + HARD_CHECK_IS_MEMBER(*root, del); -#ifdef HARD_DEBUG - check_tree(*root, 0); -#endif + null_x.parent = NULL; /* Remove node from tree... */ @@ -461,7 +582,9 @@ aoff_unlink_free_block(Allctr_t *allctr, Block_t *del, Uint32 flags) } if (y != z) { /* We spliced out the successor of z; replace z by the successor */ + ASSERT(z != &null_x); replace(root, z, y); + lower_max_size(y, NULL); } if (spliced_is_black) { @@ -572,28 +695,48 @@ aoff_unlink_free_block(Allctr_t *allctr, Block_t *del, Uint32 flags) RBT_ASSERT(!null_x.right); } } - - DESTROY_TREE_NODE(del); - -#ifdef HARD_DEBUG - check_tree(*root, 0); -#endif } static void -aoff_link_free_block(Allctr_t *allctr, Block_t *block, Uint32 flags) +aoff_link_free_block(Allctr_t *allctr, Block_t *block) { - AOFFAllctr_t *alc = (AOFFAllctr_t *) allctr; + AOFFAllctr_t* alc = (AOFFAllctr_t*) allctr; AOFF_RBTree_t *blk = (AOFF_RBTree_t *) block; - AOFF_RBTree_t **root = ((flags & ERTS_ALCU_FLG_SBMBC) - ? &alc->sbmbc_root : &alc->mbc_root); - Uint blk_sz = BLK_SZ(blk); + AOFF_RBTree_t *crr_node; + AOFF_Carrier_t *blk_crr = (AOFF_Carrier_t*) FBLK_TO_MBC(block); + Uint blk_sz = AOFF_BLK_SZ(blk); + + ASSERT(allctr == ERTS_ALC_CARRIER_TO_ALLCTR(&blk_crr->crr)); + ASSERT(blk_crr->rbt_node.hdr.bhdr == (blk_crr->root ? blk_crr->root->max_sz : 0)); + HARD_CHECK_TREE(&blk_crr->crr, alc->flavor, blk_crr->root, 0); + + rbt_insert(alc->flavor, &blk_crr->root, blk); + + /* Update the carrier tree with a potentially new (larger) max_sz + */ + crr_node = &blk_crr->rbt_node; + if (blk_sz > crr_node->hdr.bhdr) { + ASSERT(blk_sz == blk_crr->root->max_sz); + crr_node->hdr.bhdr = blk_sz; + while (blk_sz > crr_node->max_sz) { + crr_node->max_sz = blk_sz; + crr_node = crr_node->parent; + if (!crr_node) break; + } + } + HARD_CHECK_TREE(&blk_crr->crr, alc->flavor, blk_crr->root, 0); +} -#ifdef HARD_DEBUG - check_tree(*root, 0); -#endif +static void +rbt_insert(enum AOFF_Flavor flavor, AOFF_RBTree_t** root, AOFF_RBTree_t* blk) +{ + Uint blk_sz = AOFF_BLK_SZ(blk); - blk->flags = 0; +#ifdef DEBUG + blk->flags = (flavor == AOFF_BF) ? IS_BF_FLG : 0; +#else + blk->flags = 0; +#endif blk->left = NULL; blk->right = NULL; blk->max_sz = blk_sz; @@ -606,10 +749,12 @@ aoff_link_free_block(Allctr_t *allctr, Block_t *block, Uint32 flags) else { AOFF_RBTree_t *x = *root; while (1) { + SWord diff; if (x->max_sz < blk_sz) { x->max_sz = blk_sz; } - if (blk < x) { + diff = cmp_blocks(flavor, blk, x); + if (diff < 0) { if (!x->left) { blk->parent = x; x->left = blk; @@ -617,7 +762,7 @@ aoff_link_free_block(Allctr_t *allctr, Block_t *block, Uint32 flags) } x = x->left; } - else { + else if (diff > 0) { if (!x->right) { blk->parent = x; x->right = blk; @@ -625,7 +770,18 @@ aoff_link_free_block(Allctr_t *allctr, Block_t *block, Uint32 flags) } x = x->right; } - + else { + ASSERT(flavor == AOFF_BF); + ASSERT(blk->flags & IS_BF_FLG); + ASSERT(x->flags & IS_BF_FLG); + SET_LIST_ELEM(blk); + LIST_NEXT(blk) = LIST_NEXT(x); + LIST_PREV(blk) = x; + if (LIST_NEXT(x)) + LIST_PREV(LIST_NEXT(x)) = blk; + LIST_NEXT(x) = blk; + return; + } } /* Insert block into size tree */ @@ -635,38 +791,63 @@ aoff_link_free_block(Allctr_t *allctr, Block_t *block, Uint32 flags) if (IS_RED(blk->parent)) tree_insert_fixup(root, blk); } + if (flavor == AOFF_BF) { + SET_TREE_NODE(blk); + LIST_NEXT(blk) = NULL; + } +} -#ifdef HARD_DEBUG - check_tree(*root, 0); -#endif +static AOFF_RBTree_t* +rbt_search(AOFF_RBTree_t* root, Uint size) +{ + AOFF_RBTree_t* x = root; + + ASSERT(x); + for (;;) { + if (x->left && x->left->max_sz >= size) { + x = x->left; + } + else if (AOFF_BLK_SZ(x) >= size) { + return x; + } + else { + x = x->right; + if (!x) { + return NULL; + } + } + } } static Block_t * aoff_get_free_block(Allctr_t *allctr, Uint size, - Block_t *cand_blk, Uint cand_size, Uint32 flags) + Block_t *cand_blk, Uint cand_size) { AOFFAllctr_t *alc = (AOFFAllctr_t *) allctr; - AOFF_RBTree_t *x = ((flags & ERTS_ALCU_FLG_SBMBC) - ? alc->sbmbc_root : alc->mbc_root); + AOFF_RBTree_t *crr_node = alc->mbc_root; + AOFF_Carrier_t* crr; AOFF_RBTree_t *blk = NULL; #ifdef HARD_DEBUG - AOFF_RBTree_t* dbg_blk = check_tree(x, size); + AOFF_RBTree_t* dbg_blk; #endif - + ASSERT(!cand_blk || cand_size >= size); - while (x) { - if (x->left && x->left->max_sz >= size) { - x = x->left; - } - else if (BLK_SZ(x) >= size) { - blk = x; - break; - } - else { - x = x->right; - } + /* Get first-fit carrier + */ + if (!crr_node || !(blk=rbt_search(crr_node, size))) { + return NULL; } + crr = RBT_NODE_TO_MBC(blk); + + /* Get block within carrier tree + */ +#ifdef HARD_DEBUG + dbg_blk = HARD_CHECK_TREE(&crr->crr, alc->flavor, crr->root, size); +#endif + + blk = rbt_search(crr->root, size); + ASSERT(blk); #ifdef HARD_DEBUG ASSERT(blk == dbg_blk); @@ -675,15 +856,87 @@ aoff_get_free_block(Allctr_t *allctr, Uint size, if (!blk) return NULL; - if (cand_blk && cand_blk < &blk->hdr) { + if (cand_blk && cmp_cand_blk(alc->flavor, cand_blk, blk) < 0) { return NULL; /* cand_blk was better */ } - aoff_unlink_free_block(allctr, (Block_t *) blk, flags); + aoff_unlink_free_block(allctr, (Block_t *) blk); return (Block_t *) blk; } +static void aoff_creating_mbc(Allctr_t *allctr, Carrier_t *carrier) +{ + AOFFAllctr_t *alc = (AOFFAllctr_t *) allctr; + AOFF_Carrier_t *crr = (AOFF_Carrier_t*) carrier; + AOFF_RBTree_t **root = &alc->mbc_root; + + HARD_CHECK_TREE(NULL, 0, *root, 0); + + /* Link carrier in address order tree + */ + crr->rbt_node.hdr.bhdr = 0; + rbt_insert(AOFF_AOFF, root, &crr->rbt_node); + + /* aoff_link_free_block will add free block later */ + crr->root = NULL; + + HARD_CHECK_TREE(NULL, 0, *root, 0); +} + +static void aoff_destroying_mbc(Allctr_t *allctr, Carrier_t *carrier) +{ + AOFFAllctr_t *alc = (AOFFAllctr_t *) allctr; + AOFF_Carrier_t *crr = (AOFF_Carrier_t*) carrier; + AOFF_RBTree_t *root = alc->mbc_root; + + if (crr->rbt_node.parent || &crr->rbt_node == root) { + aoff_remove_mbc(allctr, carrier); + } + /*else already removed */ +} + +static void aoff_add_mbc(Allctr_t *allctr, Carrier_t *carrier) +{ + AOFFAllctr_t *alc = (AOFFAllctr_t *) allctr; + AOFF_Carrier_t *crr = (AOFF_Carrier_t*) carrier; + AOFF_RBTree_t **root = &alc->mbc_root; + + HARD_CHECK_TREE(NULL, 0, *root, 0); + + /* Link carrier in address order tree + */ + rbt_insert(AOFF_AOFF, root, &crr->rbt_node); + + HARD_CHECK_TREE(NULL, 0, *root, 0); +} + +static void aoff_remove_mbc(Allctr_t *allctr, Carrier_t *carrier) +{ + AOFFAllctr_t *alc = (AOFFAllctr_t *) allctr; + AOFF_Carrier_t *crr = (AOFF_Carrier_t*) carrier; + AOFF_RBTree_t **root = &alc->mbc_root; + + ASSERT(allctr == ERTS_ALC_CARRIER_TO_ALLCTR(carrier)); + HARD_CHECK_TREE(NULL, 0, *root, 0); + + rbt_delete(root, &crr->rbt_node); + crr->rbt_node.parent = NULL; + crr->rbt_node.left = NULL; + crr->rbt_node.right = NULL; + crr->rbt_node.max_sz = crr->rbt_node.hdr.bhdr; + + HARD_CHECK_TREE(NULL, 0, *root, 0); +} + +static UWord aoff_largest_fblk_in_mbc(Allctr_t* allctr, Carrier_t* carrier) +{ + AOFF_Carrier_t *crr = (AOFF_Carrier_t*) carrier; + + ASSERT(allctr == ERTS_ALC_CARRIER_TO_ALLCTR(carrier)); + ASSERT(crr->rbt_node.hdr.bhdr == (crr->root ? crr->root->max_sz : 0)); + return crr->rbt_node.hdr.bhdr; +} /* * info_options() @@ -692,6 +945,8 @@ aoff_get_free_block(Allctr_t *allctr, Uint size, static struct { Eterm as; Eterm aoff; + Eterm aoffcaobf; + Eterm aoffcbf; #ifdef DEBUG Eterm end_of_atoms; #endif @@ -720,6 +975,8 @@ init_atoms(void) #endif AM_INIT(as); AM_INIT(aoff); + AM_INIT(aoffcaobf); + AM_INIT(aoffcbf); #ifdef DEBUG for (atom = (Eterm *) &am; atom < &am.end_of_atoms; atom++) { @@ -749,14 +1006,17 @@ info_options(Allctr_t *allctr, Uint **hpp, Uint *szp) { + AOFFAllctr_t* alc = (AOFFAllctr_t*) allctr; Eterm res = THE_NON_VALUE; + const char* flavor_str[3] = {"aoff", "aoffcaobf", "aoffcbf"}; + Eterm flavor_atom[3] = {am.aoff, am.aoffcaobf, am.aoffcbf}; if (print_to_p) { erts_print(*print_to_p, print_to_arg, "%sas: %s\n", prefix, - "aoff"); + flavor_str[alc->flavor]); } if (hpp || szp) { @@ -766,7 +1026,7 @@ info_options(Allctr_t *allctr, __FILE__, __LINE__);; res = NIL; - add_2tup(hpp, szp, &res, am.as, am.aoff); + add_2tup(hpp, szp, &res, am.as, flavor_atom[alc->flavor]); } return res; @@ -780,19 +1040,28 @@ info_options(Allctr_t *allctr, * to erts_aoffalc_test() * \* */ -unsigned long -erts_aoffalc_test(unsigned long op, unsigned long a1, unsigned long a2) +UWord +erts_aoffalc_test(UWord op, UWord a1, UWord a2) { switch (op) { - case 0x500: return (unsigned long) 0; /* IS_AOBF */ - case 0x501: return (unsigned long) ((AOFFAllctr_t *) a1)->mbc_root; - case 0x502: return (unsigned long) ((AOFF_RBTree_t *) a1)->parent; - case 0x503: return (unsigned long) ((AOFF_RBTree_t *) a1)->left; - case 0x504: return (unsigned long) ((AOFF_RBTree_t *) a1)->right; - case 0x506: return (unsigned long) IS_BLACK((AOFF_RBTree_t *) a1); - case 0x508: return (unsigned long) 1; /* IS_AOFF */ - case 0x509: return (unsigned long) ((AOFF_RBTree_t *) a1)->max_sz; - default: ASSERT(0); return ~((unsigned long) 0); + case 0x500: return (UWord) ((AOFFAllctr_t *) a1)->flavor == AOFF_AOBF; + case 0x501: { + AOFF_RBTree_t *node = ((AOFFAllctr_t *) a1)->mbc_root; + Uint size = (Uint) a2; + node = node ? rbt_search(node, size) : NULL; + return (UWord) (node ? RBT_NODE_TO_MBC(node)->root : NULL); + } + case 0x502: return (UWord) ((AOFF_RBTree_t *) a1)->parent; + case 0x503: return (UWord) ((AOFF_RBTree_t *) a1)->left; + case 0x504: return (UWord) ((AOFF_RBTree_t *) a1)->right; + case 0x505: return (UWord) LIST_NEXT(a1); + case 0x506: return (UWord) IS_BLACK((AOFF_RBTree_t *) a1); + case 0x507: return (UWord) IS_TREE_NODE((AOFF_RBTree_t *) a1); + case 0x508: return (UWord) 0; /* IS_BF_ALGO */ + case 0x509: return (UWord) ((AOFF_RBTree_t *) a1)->max_sz; + case 0x50a: return (UWord) ((AOFFAllctr_t *) a1)->flavor == AOFF_BF; + case 0x50b: return (UWord) LIST_PREV(a1); + default: ASSERT(0); return ~((UWord) 0); } } @@ -804,6 +1073,16 @@ erts_aoffalc_test(unsigned long op, unsigned long a1, unsigned long a2) #ifdef HARD_DEBUG +static int rbt_assert_is_member(AOFF_RBTree_t* root, AOFF_RBTree_t* node) +{ + while (node != root) { + ASSERT(node->parent); + ASSERT(node->parent->left == node || node->parent->right == node); + node = node->parent; + } + return 1; +} + #define IS_LEFT_VISITED(FB) ((FB)->flags & LEFT_VISITED_FLG) #define IS_RIGHT_VISITED(FB) ((FB)->flags & RIGHT_VISITED_FLG) @@ -840,16 +1119,19 @@ static void print_tree(AOFF_RBTree_t*); */ static AOFF_RBTree_t * -check_tree(AOFF_RBTree_t* root, Uint size) +check_tree(Carrier_t* within_crr, enum AOFF_Flavor flavor, AOFF_RBTree_t* root, Uint size) { AOFF_RBTree_t *res = NULL; Sint blacks; Sint curr_blacks; AOFF_RBTree_t *x; + Carrier_t* crr; + Uint depth, max_depth, node_cnt; #ifdef PRINT_TREE print_tree(root); #endif + ASSERT(within_crr || flavor == AOFF_AOFF); if (!root) return res; @@ -859,12 +1141,16 @@ check_tree(AOFF_RBTree_t* root, Uint size) ASSERT(!x->parent); curr_blacks = 1; blacks = -1; + depth = 1; + max_depth = 0; + node_cnt = 0; while (x) { if (!IS_LEFT_VISITED(x)) { SET_LEFT_VISITED(x); if (x->left) { x = x->left; + ++depth; if (IS_BLACK(x)) curr_blacks++; continue; @@ -880,6 +1166,7 @@ check_tree(AOFF_RBTree_t* root, Uint size) SET_RIGHT_VISITED(x); if (x->right) { x = x->right; + ++depth; if (IS_BLACK(x)) curr_blacks++; continue; @@ -891,6 +1178,30 @@ check_tree(AOFF_RBTree_t* root, Uint size) } } + ++node_cnt; + if (depth > max_depth) + max_depth = depth; + + if (within_crr) { + crr = FBLK_TO_MBC(&x->hdr); + ASSERT(crr == within_crr); + ASSERT((char*)x > (char*)crr); + ASSERT(((char*)x + AOFF_BLK_SZ(x)) <= ((char*)crr + CARRIER_SZ(crr))); + + } + if (flavor == AOFF_BF) { + AOFF_RBTree_t* y = x; + AOFF_RBTree_t* nxt = LIST_NEXT(y); + ASSERT(IS_TREE_NODE(x)); + while (nxt) { + ASSERT(IS_LIST_ELEM(nxt)); + ASSERT(AOFF_BLK_SZ(nxt) == AOFF_BLK_SZ(x)); + ASSERT(FBLK_TO_MBC(&nxt->hdr) == within_crr); + ASSERT(LIST_PREV(nxt) == y); + y = nxt; + nxt = LIST_NEXT(nxt); + } + } if (IS_RED(x)) { ASSERT(IS_BLACK(x->right)); @@ -901,22 +1212,22 @@ check_tree(AOFF_RBTree_t* root, Uint size) if (x->left) { ASSERT(x->left->parent == x); - ASSERT(x->left < x); + ASSERT(cmp_blocks(flavor, x->left, x) < 0); ASSERT(x->left->max_sz <= x->max_sz); } if (x->right) { ASSERT(x->right->parent == x); - ASSERT(x->right > x); + ASSERT(cmp_blocks(flavor, x->right, x) > 0); ASSERT(x->right->max_sz <= x->max_sz); } - ASSERT(x->max_sz >= BLK_SZ(x)); - ASSERT(x->max_sz == BLK_SZ(x) + ASSERT(x->max_sz >= AOFF_BLK_SZ(x)); + ASSERT(x->max_sz == AOFF_BLK_SZ(x) || x->max_sz == (x->left ? x->left->max_sz : 0) || x->max_sz == (x->right ? x->right->max_sz : 0)); - if (size && BLK_SZ(x) >= size) { - if (!res || x < res) { + if (size && AOFF_BLK_SZ(x) >= size) { + if (!res || cmp_blocks(flavor, x, res) < 0) { res = x; } } @@ -926,10 +1237,11 @@ check_tree(AOFF_RBTree_t* root, Uint size) if (IS_BLACK(x)) curr_blacks--; x = x->parent; - + --depth; } - + ASSERT(depth == 0 || (!root && depth==1)); ASSERT(curr_blacks == 0); + ASSERT((1 << (max_depth/2)) <= node_cnt); UNSET_LEFT_VISITED(root); UNSET_RIGHT_VISITED(root); @@ -954,9 +1266,9 @@ print_tree_aux(AOFF_RBTree_t *x, int indent) for (i = 0; i < indent; i++) { putc(' ', stderr); } - fprintf(stderr, "%s: sz=%lu addr=0x%lx max_size=%lu\r\n", + fprintf(stderr, "%s: sz=%lu addr=0x%lx max_size=%u\r\n", IS_BLACK(x) ? "BLACK" : "RED", - BLK_SZ(x), (Uint)x, x->max_sz); + AOFF_BLK_SZ(x), (Uint)x, (unsigned)x->max_sz); print_tree_aux(x->left, indent + INDENT_STEP); } } diff --git a/erts/emulator/beam/erl_ao_firstfit_alloc.h b/erts/emulator/beam/erl_ao_firstfit_alloc.h index 6fa626f723..25b344c6a8 100644 --- a/erts/emulator/beam/erl_ao_firstfit_alloc.h +++ b/erts/emulator/beam/erl_ao_firstfit_alloc.h @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 2003-2011. All Rights Reserved. + * Copyright Ericsson AB 2003-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -27,8 +27,14 @@ typedef struct AOFFAllctr_t_ AOFFAllctr_t; +enum AOFF_Flavor { + AOFF_AOFF = 0, + AOFF_AOBF = 1, + AOFF_BF = 2 +}; + typedef struct { - int dummy; + enum AOFF_Flavor flavor; } AOFFAllctrInit_t; #define ERTS_DEFAULT_AOFF_ALLCTR_INIT {0/*dummy*/} @@ -51,10 +57,10 @@ struct AOFFAllctr_t_ { Allctr_t allctr; /* Has to be first! */ struct AOFF_RBTree_t_* mbc_root; - struct AOFF_RBTree_t_* sbmbc_root; + enum AOFF_Flavor flavor; }; -unsigned long erts_aoffalc_test(unsigned long, unsigned long, unsigned long); +UWord erts_aoffalc_test(UWord, UWord, UWord); #endif /* #if defined(GET_ERL_AOFF_ALLOC_IMPL) && !defined(ERL_AOFF_ALLOC_IMPL__) */ diff --git a/erts/emulator/beam/erl_async.c b/erts/emulator/beam/erl_async.c index f308039baf..decae6b2ca 100644 --- a/erts/emulator/beam/erl_async.c +++ b/erts/emulator/beam/erl_async.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 2000-2012. All Rights Reserved. + * Copyright Ericsson AB 2000-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -122,6 +122,8 @@ typedef struct { #endif } ErtsAsyncData; +#if defined(USE_THREADS) && defined(USE_VM_PROBES) + /* * Some compilers, e.g. GCC 4.2.1 and -O3, will optimize away DTrace * calls if they're the last thing in the function. :-( @@ -129,6 +131,7 @@ typedef struct { * https://github.com/memcached/memcached/commit/6298b3978687530bc9d219b6ac707a1b681b2a46 */ static unsigned gcc_optimizer_hack = 0; +#endif int erts_async_max_threads; /* Initialized by erl_init.c */ int erts_async_thread_suggested_stack_size; /* Initialized by erl_init.c */ @@ -163,6 +166,7 @@ async_ready_q(Uint sched_id) #endif + void erts_init_async(void) { @@ -223,11 +227,23 @@ erts_init_async(void) thr_opts.suggested_stack_size = erts_async_thread_suggested_stack_size; +#ifdef ETHR_HAVE_THREAD_NAMES + thr_opts.name = malloc(sizeof(char)*(strlen("async_XXXX")+1)); +#endif + for (i = 0; i < erts_async_max_threads; i++) { ErtsAsyncQ *aq = async_q(i); + +#ifdef ETHR_HAVE_THREAD_NAMES + sprintf(thr_opts.name, "async_%d", i+1); +#endif + erts_thr_create(&aq->thr_id, async_main, (void*) aq, &thr_opts); } +#ifdef ETHR_HAVE_THREAD_NAMES + free(thr_opts.name); +#endif /* Wait for async threads to initialize... */ erts_mtx_lock(&async->init.data.mtx); @@ -276,13 +292,14 @@ static ERTS_INLINE void async_add(ErtsAsync *a, ErtsAsyncQ* q) if (DTRACE_ENABLED(aio_pool_add)) { DTRACE_CHARBUF(port_str, 16); - erts_snprintf(port_str, sizeof(port_str), "%T", a->port); + erts_snprintf(port_str, sizeof(DTRACE_CHARBUF_NAME(port_str)), + "%T", a->port); /* DTRACE TODO: Get the queue length from erts_thr_q_enqueue() ? */ len = -1; DTRACE2(aio_pool_add, port_str, len); } -#endif gcc_optimizer_hack++; +#endif } static ERTS_INLINE ErtsAsync *async_get(ErtsThrQ_t *q, @@ -311,7 +328,8 @@ static ERTS_INLINE ErtsAsync *async_get(ErtsThrQ_t *q, if (DTRACE_ENABLED(aio_pool_get)) { DTRACE_CHARBUF(port_str, 16); - erts_snprintf(port_str, sizeof(port_str), "%T", a->port); + erts_snprintf(port_str, sizeof(DTRACE_CHARBUF_NAME(port_str)), + "%T", a->port); /* DTRACE TODO: Get the length from erts_thr_q_dequeue() ? */ len = -1; DTRACE2(aio_pool_get, port_str, len); @@ -379,10 +397,15 @@ static ERTS_INLINE ErtsAsync *async_get(ErtsThrQ_t *q, static ERTS_INLINE void call_async_ready(ErtsAsync *a) { +#if ERTS_USE_ASYNC_READY_Q Port *p = erts_id2port_sflgs(a->port, NULL, 0, ERTS_PORT_SFLGS_INVALID_DRIVER_LOOKUP); +#else + Port *p = erts_thr_id2port_sflgs(a->port, + ERTS_PORT_SFLGS_INVALID_DRIVER_LOOKUP); +#endif if (!p) { if (a->async_free) a->async_free(a->async_data); @@ -392,7 +415,11 @@ static ERTS_INLINE void call_async_ready(ErtsAsync *a) if (a->async_free) a->async_free(a->async_data); } +#if ERTS_USE_ASYNC_READY_Q erts_port_release(p); +#else + erts_thr_port_release(p); +#endif } if (a->pdl) driver_pdl_dec_refc(a->pdl); @@ -571,12 +598,26 @@ int erts_async_ready_clean(void *varq, void *val) #endif /* +** Generate a fair async key prom an ErlDrvPort +** The port data gives a fair distribution grom port pointer +** to unsigned integer - to be used in key for driver_async below. +*/ +unsigned int driver_async_port_key(ErlDrvPort port) +{ + ErlDrvTermData td = driver_mk_port(port); + if (td == (ErlDrvTermData) NIL) { + return 0; + } + return (unsigned int) (UWord) internal_port_data(td); +} + +/* ** Schedule async_invoke on a worker thread ** NOTE will be syncrounous when threads are unsupported ** return values: ** 0 completed ** -1 error -** N handle value (used with async_cancel) +** N handle value ** arguments: ** ix driver index ** key pointer to secedule queue (NULL means round robin) @@ -601,7 +642,7 @@ long driver_async(ErlDrvPort ix, unsigned int* key, #endif prt = erts_drvport2port(ix); - if (!prt) + if (prt == ERTS_INVALID_ERL_DRV_PORT) return -1; ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt)); @@ -612,7 +653,7 @@ long driver_async(ErlDrvPort ix, unsigned int* key, a->sched_id = sched_id; #endif a->hndl = (DE_Handle*)prt->drv_ptr->handle; - a->port = prt->id; + a->port = prt->common.id; a->pdl = NULL; a->async_data = async_data; a->async_invoke = async_invoke; @@ -661,23 +702,3 @@ long driver_async(ErlDrvPort ix, unsigned int* key, return id; } - -int driver_async_cancel(unsigned int id) -{ - /* - * Not supported anymore. Always fail (which is backward - * compatible). - * - * This functionality could be implemented again. However, - * it is (and always has been) completely useless since - * it doesn't give you any guarantees whatsoever. The user - * needs to (and always have had to) synchronize in his/her - * own code in order to get any guarantees. - */ - return 0; -} - - - - - diff --git a/erts/emulator/beam/erl_bestfit_alloc.c b/erts/emulator/beam/erl_bestfit_alloc.c index c50fdeb4e8..59c14899a2 100644 --- a/erts/emulator/beam/erl_bestfit_alloc.c +++ b/erts/emulator/beam/erl_bestfit_alloc.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 2003-2011. All Rights Reserved. + * Copyright Ericsson AB 2003-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -73,8 +73,7 @@ #define SET_RED(N) (((RBTree_t *) (N))->flags |= RED_FLG) #define SET_BLACK(N) (((RBTree_t *) (N))->flags &= ~RED_FLG) -#undef ASSERT -#define ASSERT ASSERT_EXPR +#define BF_BLK_SZ(B) MBC_FBLK_SZ(&(B)->hdr) #if 1 #define RBT_ASSERT ASSERT @@ -87,21 +86,21 @@ static RBTree_t * check_tree(RBTree_t, int, Uint); #endif -static void tree_delete(Allctr_t *allctr, Block_t *del, Uint32 flags); +static void tree_delete(Allctr_t *allctr, Block_t *del); /* Prototypes of callback functions */ /* "address order best fit" specific callback functions */ static Block_t * aobf_get_free_block (Allctr_t *, Uint, - Block_t *, Uint, Uint32); -static void aobf_link_free_block (Allctr_t *, Block_t *, Uint32); + Block_t *, Uint); +static void aobf_link_free_block (Allctr_t *, Block_t *); #define aobf_unlink_free_block tree_delete /* "best fit" specific callback functions */ static Block_t * bf_get_free_block (Allctr_t *, Uint, - Block_t *, Uint, Uint32); -static void bf_link_free_block (Allctr_t *, Block_t *, Uint32); -static ERTS_INLINE void bf_unlink_free_block (Allctr_t *, Block_t *, Uint32); + Block_t *, Uint); +static void bf_link_free_block (Allctr_t *, Block_t *); +static ERTS_INLINE void bf_unlink_free_block (Allctr_t *, Block_t *); static Eterm info_options (Allctr_t *, char *, int *, @@ -206,6 +205,9 @@ erts_bfalc_start(BFAllctr_t *bfallctr, allctr->get_next_mbc_size = NULL; allctr->creating_mbc = NULL; allctr->destroying_mbc = NULL; + allctr->add_mbc = NULL; + allctr->remove_mbc = NULL; + allctr->largest_fblk_in_mbc = NULL; allctr->init_atoms = init_atoms; #ifdef ERTS_ALLOC_UTIL_HARD_DEBUG @@ -406,13 +408,11 @@ tree_insert_fixup(RBTree_t **root, RBTree_t *blk) * callback function in the address order case. */ static void -tree_delete(Allctr_t *allctr, Block_t *del, Uint32 flags) +tree_delete(Allctr_t *allctr, Block_t *del) { BFAllctr_t *bfallctr = (BFAllctr_t *) allctr; Uint spliced_is_black; - RBTree_t **root = ((flags & ERTS_ALCU_FLG_SBMBC) - ? &bfallctr->sbmbc_root - : &bfallctr->mbc_root); + RBTree_t **root = &bfallctr->mbc_root; RBTree_t *x, *y, *z = (RBTree_t *) del; RBTree_t null_x; /* null_x is used to get the fixup started when we splice out a node without children. */ @@ -585,14 +585,12 @@ tree_delete(Allctr_t *allctr, Block_t *del, Uint32 flags) \* */ static void -aobf_link_free_block(Allctr_t *allctr, Block_t *block, Uint32 flags) +aobf_link_free_block(Allctr_t *allctr, Block_t *block) { BFAllctr_t *bfallctr = (BFAllctr_t *) allctr; - RBTree_t **root = ((flags & ERTS_ALCU_FLG_SBMBC) - ? &bfallctr->sbmbc_root - : &bfallctr->mbc_root); + RBTree_t **root = &bfallctr->mbc_root; RBTree_t *blk = (RBTree_t *) block; - Uint blk_sz = BLK_SZ(blk); + Uint blk_sz = BF_BLK_SZ(blk); @@ -610,7 +608,7 @@ aobf_link_free_block(Allctr_t *allctr, Block_t *block, Uint32 flags) while (1) { Uint size; - size = BLK_SZ(x); + size = BF_BLK_SZ(x); if (blk_sz < size || (blk_sz == size && blk < x)) { if (!x->left) { @@ -646,21 +644,18 @@ aobf_link_free_block(Allctr_t *allctr, Block_t *block, Uint32 flags) #if 0 /* tree_delete() is directly used instead */ static void -aobf_unlink_free_block(Allctr_t *allctr, Block_t *block, Uint32 flags) +aobf_unlink_free_block(Allctr_t *allctr, Block_t *block) { - tree_delete(allctr, block, flags); + tree_delete(allctr, block); } #endif static Block_t * aobf_get_free_block(Allctr_t *allctr, Uint size, - Block_t *cand_blk, Uint cand_size, - Uint32 flags) + Block_t *cand_blk, Uint cand_size) { BFAllctr_t *bfallctr = (BFAllctr_t *) allctr; - RBTree_t **root = ((flags & ERTS_ALCU_FLG_SBMBC) - ? &bfallctr->sbmbc_root - : &bfallctr->mbc_root); + RBTree_t **root = &bfallctr->mbc_root; RBTree_t *x = *root; RBTree_t *blk = NULL; Uint blk_sz; @@ -668,7 +663,7 @@ aobf_get_free_block(Allctr_t *allctr, Uint size, ASSERT(!cand_blk || cand_size >= size); while (x) { - blk_sz = BLK_SZ(x); + blk_sz = BF_BLK_SZ(x); if (blk_sz < size) { x = x->right; } @@ -686,14 +681,14 @@ aobf_get_free_block(Allctr_t *allctr, Uint size, #endif if (cand_blk) { - blk_sz = BLK_SZ(blk); + blk_sz = BF_BLK_SZ(blk); if (cand_size < blk_sz) return NULL; /* cand_blk was better */ if (cand_size == blk_sz && ((void *) cand_blk) < ((void *) blk)) return NULL; /* cand_blk was better */ } - aobf_unlink_free_block(allctr, (Block_t *) blk, flags); + aobf_unlink_free_block(allctr, (Block_t *) blk); return (Block_t *) blk; } @@ -704,14 +699,12 @@ aobf_get_free_block(Allctr_t *allctr, Uint size, \* */ static void -bf_link_free_block(Allctr_t *allctr, Block_t *block, Uint32 flags) +bf_link_free_block(Allctr_t *allctr, Block_t *block) { BFAllctr_t *bfallctr = (BFAllctr_t *) allctr; - RBTree_t **root = ((flags & ERTS_ALCU_FLG_SBMBC) - ? &bfallctr->sbmbc_root - : &bfallctr->mbc_root); + RBTree_t **root = &bfallctr->mbc_root; RBTree_t *blk = (RBTree_t *) block; - Uint blk_sz = BLK_SZ(blk); + Uint blk_sz = BF_BLK_SZ(blk); SET_TREE_NODE(blk); @@ -730,7 +723,7 @@ bf_link_free_block(Allctr_t *allctr, Block_t *block, Uint32 flags) while (1) { Uint size; - size = BLK_SZ(x); + size = BF_BLK_SZ(x); if (blk_sz == size) { @@ -778,12 +771,10 @@ bf_link_free_block(Allctr_t *allctr, Block_t *block, Uint32 flags) } static ERTS_INLINE void -bf_unlink_free_block(Allctr_t *allctr, Block_t *block, Uint32 flags) +bf_unlink_free_block(Allctr_t *allctr, Block_t *block) { BFAllctr_t *bfallctr = (BFAllctr_t *) allctr; - RBTree_t **root = ((flags & ERTS_ALCU_FLG_SBMBC) - ? &bfallctr->sbmbc_root - : &bfallctr->mbc_root); + RBTree_t **root = &bfallctr->mbc_root; RBTree_t *x = (RBTree_t *) block; if (IS_LIST_ELEM(x)) { @@ -796,7 +787,7 @@ bf_unlink_free_block(Allctr_t *allctr, Block_t *block, Uint32 flags) else if (LIST_NEXT(x)) { /* Replace tree node by next element in list... */ - ASSERT(BLK_SZ(LIST_NEXT(x)) == BLK_SZ(x)); + ASSERT(BF_BLK_SZ(LIST_NEXT(x)) == BF_BLK_SZ(x)); ASSERT(IS_TREE_NODE(x)); ASSERT(IS_LIST_ELEM(LIST_NEXT(x))); @@ -811,7 +802,7 @@ bf_unlink_free_block(Allctr_t *allctr, Block_t *block, Uint32 flags) } else { /* Remove from tree */ - tree_delete(allctr, block, flags); + tree_delete(allctr, block); } DESTROY_LIST_ELEM(x); @@ -820,13 +811,10 @@ bf_unlink_free_block(Allctr_t *allctr, Block_t *block, Uint32 flags) static Block_t * bf_get_free_block(Allctr_t *allctr, Uint size, - Block_t *cand_blk, Uint cand_size, - Uint32 flags) + Block_t *cand_blk, Uint cand_size) { BFAllctr_t *bfallctr = (BFAllctr_t *) allctr; - RBTree_t **root = ((flags & ERTS_ALCU_FLG_SBMBC) - ? &bfallctr->sbmbc_root - : &bfallctr->mbc_root); + RBTree_t **root = &bfallctr->mbc_root; RBTree_t *x = *root; RBTree_t *blk = NULL; Uint blk_sz; @@ -834,7 +822,7 @@ bf_get_free_block(Allctr_t *allctr, Uint size, ASSERT(!cand_blk || cand_size >= size); while (x) { - blk_sz = BLK_SZ(x); + blk_sz = BF_BLK_SZ(x); if (blk_sz < size) { x = x->right; } @@ -855,18 +843,18 @@ bf_get_free_block(Allctr_t *allctr, Uint size, #ifdef HARD_DEBUG { RBTree_t *ct_blk = check_tree(root, 0, size); - ASSERT(BLK_SZ(ct_blk) == BLK_SZ(blk)); + ASSERT(BF_BLK_SZ(ct_blk) == BF_BLK_SZ(blk)); } #endif - if (cand_blk && cand_size <= BLK_SZ(blk)) + if (cand_blk && cand_size <= BF_BLK_SZ(blk)) return NULL; /* cand_blk was better */ /* Use next block if it exist in order to avoid replacing the tree node */ blk = LIST_NEXT(blk) ? LIST_NEXT(blk) : blk; - bf_unlink_free_block(allctr, (Block_t *) blk, flags); + bf_unlink_free_block(allctr, (Block_t *) blk); return (Block_t *) blk; } @@ -971,20 +959,22 @@ info_options(Allctr_t *allctr, * to erts_bfalc_test() * \* */ -unsigned long -erts_bfalc_test(unsigned long op, unsigned long a1, unsigned long a2) +UWord +erts_bfalc_test(UWord op, UWord a1, UWord a2) { switch (op) { - case 0x200: return (unsigned long) ((BFAllctr_t *) a1)->address_order; - case 0x201: return (unsigned long) ((BFAllctr_t *) a1)->mbc_root; - case 0x202: return (unsigned long) ((RBTree_t *) a1)->parent; - case 0x203: return (unsigned long) ((RBTree_t *) a1)->left; - case 0x204: return (unsigned long) ((RBTree_t *) a1)->right; - case 0x205: return (unsigned long) ((RBTreeList_t *) a1)->next; - case 0x206: return (unsigned long) IS_BLACK((RBTree_t *) a1); - case 0x207: return (unsigned long) IS_TREE_NODE((RBTree_t *) a1); - case 0x208: return (unsigned long) 0; /* IS_AOFF */ - default: ASSERT(0); return ~((unsigned long) 0); + case 0x200: return (UWord) ((BFAllctr_t *) a1)->address_order; /* IS_AOBF */ + case 0x201: return (UWord) ((BFAllctr_t *) a1)->mbc_root; + case 0x202: return (UWord) ((RBTree_t *) a1)->parent; + case 0x203: return (UWord) ((RBTree_t *) a1)->left; + case 0x204: return (UWord) ((RBTree_t *) a1)->right; + case 0x205: return (UWord) LIST_NEXT(a1); + case 0x206: return (UWord) IS_BLACK((RBTree_t *) a1); + case 0x207: return (UWord) IS_TREE_NODE((RBTree_t *) a1); + case 0x208: return (UWord) 1; /* IS_BF_ALGO */ + case 0x20a: return (UWord) !((BFAllctr_t *) a1)->address_order; /* IS_BF */ + case 0x20b: return (UWord) LIST_PREV(a1); + default: ASSERT(0); return ~((UWord) 0); } } @@ -1093,36 +1083,36 @@ check_tree(RBTree_t *root, int ao, Uint size) if (x->left) { ASSERT(x->left->parent == x); if (ao) { - ASSERT(BLK_SZ(x->left) < BLK_SZ(x) - || (BLK_SZ(x->left) == BLK_SZ(x) && x->left < x)); + ASSERT(BF_BLK_SZ(x->left) < BF_BLK_SZ(x) + || (BF_BLK_SZ(x->left) == BF_BLK_SZ(x) && x->left < x)); } else { ASSERT(IS_TREE_NODE(x->left)); - ASSERT(BLK_SZ(x->left) < BLK_SZ(x)); + ASSERT(BF_BLK_SZ(x->left) < BF_BLK_SZ(x)); } } if (x->right) { ASSERT(x->right->parent == x); if (ao) { - ASSERT(BLK_SZ(x->right) > BLK_SZ(x) - || (BLK_SZ(x->right) == BLK_SZ(x) && x->right > x)); + ASSERT(BF_BLK_SZ(x->right) > BF_BLK_SZ(x) + || (BF_BLK_SZ(x->right) == BF_BLK_SZ(x) && x->right > x)); } else { ASSERT(IS_TREE_NODE(x->right)); - ASSERT(BLK_SZ(x->right) > BLK_SZ(x)); + ASSERT(BF_BLK_SZ(x->right) > BF_BLK_SZ(x)); } } - if (size && BLK_SZ(x) >= size) { + if (size && BF_BLK_SZ(x) >= size) { if (ao) { if (!res - || BLK_SZ(x) < BLK_SZ(res) - || (BLK_SZ(x) == BLK_SZ(res) && x < res)) + || BF_BLK_SZ(x) < BF_BLK_SZ(res) + || (BF_BLK_SZ(x) == BF_BLK_SZ(res) && x < res)) res = x; } else { - if (!res || BLK_SZ(x) < BLK_SZ(res)) + if (!res || BF_BLK_SZ(x) < BF_BLK_SZ(res)) res = x; } } @@ -1168,7 +1158,7 @@ print_tree_aux(RBTree_t *x, int indent) } fprintf(stderr, "%s: sz=%lu addr=0x%lx\r\n", IS_BLACK(x) ? "BLACK" : "RED", - BLK_SZ(x), + BF_BLK_SZ(x), (Uint) x); print_tree_aux(x->left, indent + INDENT_STEP); } diff --git a/erts/emulator/beam/erl_bestfit_alloc.h b/erts/emulator/beam/erl_bestfit_alloc.h index 0c29662852..870439e886 100644 --- a/erts/emulator/beam/erl_bestfit_alloc.h +++ b/erts/emulator/beam/erl_bestfit_alloc.h @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 2003-2011. All Rights Reserved. + * Copyright Ericsson AB 2003-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -55,11 +55,10 @@ struct BFAllctr_t_ { Allctr_t allctr; /* Has to be first! */ RBTree_t * mbc_root; - RBTree_t * sbmbc_root; int address_order; }; -unsigned long erts_bfalc_test(unsigned long, unsigned long, unsigned long); +UWord erts_bfalc_test(UWord, UWord, UWord); #endif /* #if defined(GET_ERL_BF_ALLOC_IMPL) && !defined(ERL_BF_ALLOC_IMPL__) */ diff --git a/erts/emulator/beam/erl_bif_binary.c b/erts/emulator/beam/erl_bif_binary.c index cc4f2be8eb..3bf78adce7 100644 --- a/erts/emulator/beam/erl_bif_binary.c +++ b/erts/emulator/beam/erl_bif_binary.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 2010-2011. All Rights Reserved. + * Copyright Ericsson AB 2010-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -72,52 +72,29 @@ binary_matches(Process *p, Eterm arg1, Eterm arg2, Eterm arg3); void erts_init_bif_binary(void) { - sys_memset((void *) &binary_match_trap_export, 0, sizeof(Export)); - binary_match_trap_export.address = &binary_match_trap_export.code[3]; - binary_match_trap_export.code[0] = am_erlang; - binary_match_trap_export.code[1] = am_binary_match_trap; - binary_match_trap_export.code[2] = 3; - binary_match_trap_export.code[3] = (BeamInstr) em_apply_bif; - binary_match_trap_export.code[4] = (BeamInstr) &binary_match_trap; - - sys_memset((void *) &binary_matches_trap_export, 0, sizeof(Export)); - binary_matches_trap_export.address = &binary_matches_trap_export.code[3]; - binary_matches_trap_export.code[0] = am_erlang; - binary_matches_trap_export.code[1] = am_binary_matches_trap; - binary_matches_trap_export.code[2] = 3; - binary_matches_trap_export.code[3] = (BeamInstr) em_apply_bif; - binary_matches_trap_export.code[4] = (BeamInstr) &binary_matches_trap; - - sys_memset((void *) &binary_longest_prefix_trap_export, 0, sizeof(Export)); - binary_longest_prefix_trap_export.address = &binary_longest_prefix_trap_export.code[3]; - binary_longest_prefix_trap_export.code[0] = am_erlang; - binary_longest_prefix_trap_export.code[1] = am_binary_longest_prefix_trap; - binary_longest_prefix_trap_export.code[2] = 3; - binary_longest_prefix_trap_export.code[3] = (BeamInstr) em_apply_bif; - binary_longest_prefix_trap_export.code[4] = (BeamInstr) &binary_longest_prefix_trap; - - sys_memset((void *) &binary_longest_suffix_trap_export, 0, sizeof(Export)); - binary_longest_suffix_trap_export.address = &binary_longest_suffix_trap_export.code[3]; - binary_longest_suffix_trap_export.code[0] = am_erlang; - binary_longest_suffix_trap_export.code[1] = am_binary_longest_suffix_trap; - binary_longest_suffix_trap_export.code[2] = 3; - binary_longest_suffix_trap_export.code[3] = (BeamInstr) em_apply_bif; - binary_longest_suffix_trap_export.code[4] = (BeamInstr) &binary_longest_suffix_trap; - - sys_memset((void *) &binary_bin_to_list_trap_export, 0, sizeof(Export)); - binary_bin_to_list_trap_export.address = &binary_bin_to_list_trap_export.code[3]; - binary_bin_to_list_trap_export.code[0] = am_erlang; - binary_bin_to_list_trap_export.code[1] = am_binary_bin_to_list_trap; - binary_bin_to_list_trap_export.code[2] = 3; - binary_bin_to_list_trap_export.code[3] = (BeamInstr) em_apply_bif; - binary_bin_to_list_trap_export.code[4] = (BeamInstr) &binary_bin_to_list_trap; - sys_memset((void *) &binary_copy_trap_export, 0, sizeof(Export)); - binary_copy_trap_export.address = &binary_copy_trap_export.code[3]; - binary_copy_trap_export.code[0] = am_erlang; - binary_copy_trap_export.code[1] = am_binary_copy_trap; - binary_copy_trap_export.code[2] = 2; - binary_copy_trap_export.code[3] = (BeamInstr) em_apply_bif; - binary_copy_trap_export.code[4] = (BeamInstr) &binary_copy_trap; + erts_init_trap_export(&binary_match_trap_export, + am_erlang, am_binary_match_trap, 3, + &binary_match_trap); + + erts_init_trap_export(&binary_matches_trap_export, + am_erlang, am_binary_matches_trap, 3, + &binary_matches_trap); + + erts_init_trap_export(&binary_longest_prefix_trap_export, + am_erlang, am_binary_longest_prefix_trap, 3, + &binary_longest_prefix_trap); + + erts_init_trap_export(&binary_longest_suffix_trap_export, + am_erlang, am_binary_longest_suffix_trap, 3, + &binary_longest_suffix_trap); + + erts_init_trap_export(&binary_bin_to_list_trap_export, + am_erlang, am_binary_bin_to_list_trap, 3, + &binary_bin_to_list_trap); + + erts_init_trap_export(&binary_copy_trap_export, + am_erlang, am_binary_copy_trap, 2, + &binary_copy_trap); max_loop_limit = 0; return; @@ -950,6 +927,9 @@ static int do_binary_match_compile(Eterm argument, Eterm *tag, Binary **binp) if (binary_bitsize(b) != 0) { goto badarg; } + if (binary_size(b) == 0) { + goto badarg; + } ++words; characters += binary_size(b); } @@ -1344,9 +1324,9 @@ static int parse_match_opts_list(Eterm l, Eterm bin, Uint *posp, Uint *endp) goto badarg; } if (len < 0) { - Sint lentmp = -len; + Uint lentmp = -(Uint)len; /* overflow */ - if (lentmp == len || lentmp < 0 || -lentmp != len) { + if ((Sint)lentmp < 0) { goto badarg; } len = lentmp; @@ -1575,9 +1555,9 @@ BIF_RETTYPE erts_binary_part(Process *p, Eterm binary, Eterm epos, Eterm elen) goto badarg; } if (len < 0) { - Sint lentmp = -len; + Uint lentmp = -(Uint)len; /* overflow */ - if (lentmp == len || lentmp < 0 || -lentmp != len) { + if ((Sint)lentmp < 0) { goto badarg; } len = lentmp; @@ -1664,9 +1644,9 @@ BIF_RETTYPE erts_gc_binary_part(Process *p, Eterm *reg, Eterm live, int range_is goto badarg; } if (len < 0) { - Sint lentmp = -len; + Uint lentmp = -(Uint)len; /* overflow */ - if (lentmp == len || lentmp < 0 || -lentmp != len) { + if ((Sint)lentmp < 0) { goto badarg; } len = lentmp; @@ -2233,9 +2213,9 @@ static BIF_RETTYPE binary_bin_to_list_common(Process *p, goto badarg; } if (len < 0) { - Sint lentmp = -len; + Uint lentmp = -(Uint)len; /* overflow */ - if (lentmp == len || lentmp < 0 || -lentmp != len) { + if ((Sint)lentmp < 0) { goto badarg; } len = lentmp; @@ -2314,18 +2294,11 @@ BIF_RETTYPE binary_bin_to_list_1(BIF_ALIST_1) BIF_ERROR(BIF_P,BADARG); } -/* - * Ok, erlang:list_to_binary does not interrupt, and we really don't want - * an alternative implementation for the exact same thing, why we - * have descided to use the old non-restarting implementation for now. - * In reality, there are seldom many iterations involved in doing this, so the - * problem of long-running bifs is not really that big in this case. - * So, for now we use the old implementation also in the module binary. - */ +HIPE_WRAPPER_BIF_DISABLE_GC(binary_list_to_bin, 1) BIF_RETTYPE binary_list_to_bin_1(BIF_ALIST_1) { - return erts_list_to_binary_bif(BIF_P, BIF_ARG_1); + return erts_list_to_binary_bif(BIF_P, BIF_ARG_1, bif_export[BIF_binary_list_to_bin_1]); } typedef struct { diff --git a/erts/emulator/beam/erl_bif_chksum.c b/erts/emulator/beam/erl_bif_chksum.c index 06b7ffdf32..4302fe8f79 100644 --- a/erts/emulator/beam/erl_bif_chksum.c +++ b/erts/emulator/beam/erl_bif_chksum.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 2008-2010. All Rights Reserved. + * Copyright Ericsson AB 2008-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -42,16 +42,9 @@ static Export chksum_md5_2_exp; void erts_init_bif_chksum(void) { /* Non visual BIF to trap to. */ - memset(&chksum_md5_2_exp, 0, sizeof(Export)); - chksum_md5_2_exp.address = - &chksum_md5_2_exp.code[3]; - chksum_md5_2_exp.code[0] = am_erlang; - chksum_md5_2_exp.code[1] = am_atom_put("md5_trap",8); - chksum_md5_2_exp.code[2] = 2; - chksum_md5_2_exp.code[3] = - (BeamInstr) em_apply_bif; - chksum_md5_2_exp.code[4] = - (BeamInstr) &md5_2; + erts_init_trap_export(&chksum_md5_2_exp, + am_erlang, am_atom_put("md5_trap",8), 2, + &md5_2); } diff --git a/erts/emulator/beam/erl_bif_ddll.c b/erts/emulator/beam/erl_bif_ddll.c index c338ee1c4b..56cd2ba04f 100644 --- a/erts/emulator/beam/erl_bif_ddll.c +++ b/erts/emulator/beam/erl_bif_ddll.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 2006-2012. All Rights Reserved. + * Copyright Ericsson AB 2006-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -104,16 +104,49 @@ static void dereference_all_processes(DE_Handle *dh); static void restore_process_references(DE_Handle *dh); static void ddll_no_more_references(void *vdh); -#define lock_drv_list() erts_smp_mtx_lock(&erts_driver_list_lock) -#define unlock_drv_list() erts_smp_mtx_unlock(&erts_driver_list_lock) +#define lock_drv_list() erts_smp_rwmtx_rwlock(&erts_driver_list_lock) +#define unlock_drv_list() erts_smp_rwmtx_rwunlock(&erts_driver_list_lock) #define assert_drv_list_locked() \ - ERTS_SMP_LC_ASSERT(erts_smp_lc_mtx_is_locked(&erts_driver_list_lock)) + ERTS_SMP_LC_ASSERT(erts_smp_lc_rwmtx_is_rwlocked(&erts_driver_list_lock) \ + || erts_smp_lc_rwmtx_is_rlocked(&erts_driver_list_lock)) +#define assert_drv_list_rwlocked() \ + ERTS_SMP_LC_ASSERT(erts_smp_lc_rwmtx_is_rwlocked(&erts_driver_list_lock)) +#define assert_drv_list_rlocked() \ + ERTS_SMP_LC_ASSERT(erts_smp_lc_rwmtx_is_rlocked(&erts_driver_list_lock)) #define assert_drv_list_not_locked() \ - ERTS_SMP_LC_ASSERT(!erts_smp_lc_mtx_is_locked(&erts_driver_list_lock)) + ERTS_SMP_LC_ASSERT(!erts_smp_lc_rwmtx_is_rwlocked(&erts_driver_list_lock) \ + && !erts_smp_lc_rwmtx_is_rlocked(&erts_driver_list_lock)) #define FREE_PORT_FLAGS (ERTS_PORT_SFLGS_DEAD & (~ERTS_PORT_SFLG_INITIALIZING)) +static void +kill_ports_driver_unloaded(DE_Handle *dh) +{ + int ix, max = erts_ptab_max(&erts_port); + + for (ix = 0; ix < max; ix++) { + erts_aint32_t state; + Port* prt = erts_pix2port(ix); + if (!prt) + continue; + + ERTS_SMP_DATA_DEPENDENCY_READ_MEMORY_BARRIER; + + state = erts_atomic32_read_nob(&prt->state); + if (state & FREE_PORT_FLAGS) + continue; + + erts_smp_port_lock(prt); + + state = erts_atomic32_read_nob(&prt->state); + if (!(state & ERTS_PORT_SFLGS_DEAD) && prt->drv_ptr->handle == dh) + driver_failure_atom(ERTS_Port2ErlDrvPort(prt), "driver_unloaded"); + + erts_port_release(prt); + } +} + /* * try_load(Path, Name, OptionList) -> {ok,Status} | * {ok, PendingStatus, Ref} | @@ -149,7 +182,7 @@ BIF_RETTYPE erl_ddll_try_load_3(BIF_ALIST_3) Eterm name_term = BIF_ARG_2; Eterm options = BIF_ARG_3; char *path = NULL; - Uint path_len; + Sint path_len; char *name = NULL; DE_Handle *dh; erts_driver_t *drv; @@ -165,6 +198,7 @@ BIF_RETTYPE erl_ddll_try_load_3(BIF_ALIST_3) int kill_ports = 0; int do_build_load_error = 0; int build_this_load_error = 0; + int encoding; for(l = options; is_list(l); l = CDR(list_val(l))) { Eterm opt = CAR(list_val(l)); @@ -224,18 +258,23 @@ BIF_RETTYPE erl_ddll_try_load_3(BIF_ALIST_3) goto error; } - if (erts_iolist_size(path_term, &path_len)) { - goto error; + encoding = erts_get_native_filename_encoding(); + if (encoding == ERL_FILENAME_WIN_WCHAR) { + /* Do not convert the lib name to utf-16le yet, do that in win32 specific code */ + /* since lib_name is used in error messages */ + encoding = ERL_FILENAME_UTF8; } - path = erts_alloc(ERTS_ALC_T_DDLL_TMP_BUF, path_len + 1 /* might need path separator */ + sys_strlen(name) + 1); - if (io_list_to_buf(path_term, path, path_len) != 0) { + path = erts_convert_filename_to_encoding(path_term, NULL, 0, + ERTS_ALC_T_DDLL_TMP_BUF, 1, 0, + encoding, &path_len, + sys_strlen(name) + 2); /* might need path separator */ + if (!path) { goto error; } - while (path_len > 0 && (path[path_len-1] == '\\' || path[path_len-1] == '/')) { - --path_len; - } + ASSERT(path_len > 0 && path[path_len-1] == 0); + while (--path_len > 0 && (path[path_len-1] == '\\' || path[path_len-1] == '/')) + ; path[path_len++] = '/'; - /*path[path_len] = '\0';*/ sys_strcpy(path+path_len,name); #if DDLL_SMP @@ -356,42 +395,16 @@ BIF_RETTYPE erl_ddll_try_load_3(BIF_ALIST_3) ok_term = mkatom("loaded"); } } - assert_drv_list_locked(); + assert_drv_list_rwlocked(); if (kill_ports) { - int j; - /* Avoid closing the driver by referencing it */ + /* Avoid closing the driver by referencing it */ erts_ddll_reference_driver(dh); ASSERT(dh->status == ERL_DE_RELOAD); dh->status = ERL_DE_FORCE_RELOAD; #if DDLL_SMP unlock_drv_list(); #endif - for (j = 0; j < erts_max_ports; j++) { - Port* prt = &erts_port[j]; -#ifdef DDLL_SMP - erts_smp_port_state_lock(prt); -#endif - if (!(prt->status & FREE_PORT_FLAGS) && - prt->drv_ptr->handle == dh) { -#if DDLL_SMP - erts_smp_atomic_inc_nob(&prt->refc); - /* Extremely rare spinlock */ - while(prt->status & ERTS_PORT_SFLG_INITIALIZING) { - erts_smp_port_state_unlock(prt); - erts_smp_port_state_lock(prt); - } - erts_smp_port_state_unlock(prt); - erts_smp_mtx_lock(prt->lock); - if (!(prt->status & ERTS_PORT_SFLGS_DEAD)) { - driver_failure_atom(j, "driver_unloaded"); - } -#else - driver_failure_atom(j, "driver_unloaded"); -#endif - erts_port_release(prt); - } - else erts_smp_port_state_unlock(prt); - } + kill_ports_driver_unloaded(dh); /* Dereference, eventually causing driver destruction */ #if DDLL_SMP lock_drv_list(); @@ -581,47 +594,21 @@ Eterm erl_ddll_try_unload_2(BIF_ALIST_2) dh->reload_full_path = dh->reload_driver_name = NULL; dh->reload_flags = 0; } - if (dh->port_count > 0) { + if (erts_smp_atomic32_read_nob(&dh->port_count) > 0) { ++kill_ports; } dh->status = ERL_DE_UNLOAD; ok_term = am_pending_driver; done: - assert_drv_list_locked(); + assert_drv_list_rwlocked(); if (kill_ports > 1) { - int j; /* Avoid closing the driver by referencing it */ erts_ddll_reference_driver(dh); dh->status = ERL_DE_FORCE_UNLOAD; #if DDLL_SMP unlock_drv_list(); #endif - for (j = 0; j < erts_max_ports; j++) { - Port* prt = &erts_port[j]; -#if DDLL_SMP - erts_smp_port_state_lock(prt); -#endif - if (!(prt->status & FREE_PORT_FLAGS) - && prt->drv_ptr->handle == dh) { -#if DDLL_SMP - erts_smp_atomic_inc_nob(&prt->refc); - /* Extremely rare spinlock */ - while(prt->status & ERTS_PORT_SFLG_INITIALIZING) { - erts_smp_port_state_unlock(prt); - erts_smp_port_state_lock(prt); - } - erts_smp_port_state_unlock(prt); - erts_smp_mtx_lock(prt->lock); - if (!(prt->status & ERTS_PORT_SFLGS_DEAD)) { - driver_failure_atom(j, "driver_unloaded"); - } -#else - driver_failure_atom(j, "driver_unloaded"); -#endif - erts_port_release(prt); - } - else erts_smp_port_state_unlock(prt); - } + kill_ports_driver_unloaded(dh); #if DDLL_SMP lock_drv_list(); #endif @@ -791,7 +778,7 @@ BIF_RETTYPE erl_ddll_info_2(BIF_ALIST_2) } else if (drv->handle->status == ERL_DE_PERMANENT) { res = am_permanent; } else { - res = make_small(drv->handle->port_count); + res = make_small(erts_smp_atomic32_read_nob(&drv->handle->port_count)); } goto done; case am_linked_in_driver: @@ -1049,40 +1036,16 @@ void erts_ddll_proc_dead(Process *p, ErtsProcLocks plocks) } dh->status = ERL_DE_UNLOAD; } - if (!left && drv->handle->port_count > 0) { + if (!left + && erts_smp_atomic32_read_nob(&drv->handle->port_count) > 0) { if (kill_ports) { - int j; DE_Handle *dh = drv->handle; erts_ddll_reference_driver(dh); dh->status = ERL_DE_FORCE_UNLOAD; #if DDLL_SMP unlock_drv_list(); #endif - for (j = 0; j < erts_max_ports; j++) { - Port* prt = &erts_port[j]; -#if DDLL_SMP - erts_smp_port_state_lock(prt); -#endif - if (!(prt->status & FREE_PORT_FLAGS) && - prt->drv_ptr->handle == dh) { -#if DDLL_SMP - erts_smp_atomic_inc_nob(&prt->refc); - while(prt->status & ERTS_PORT_SFLG_INITIALIZING) { - erts_smp_port_state_unlock(prt); - erts_smp_port_state_lock(prt); - } - erts_smp_port_state_unlock(prt); - erts_smp_mtx_lock(prt->lock); - if (!(prt->status & ERTS_PORT_SFLGS_DEAD)) { - driver_failure_atom(j, "driver_unloaded"); - } -#else - driver_failure_atom(j, "driver_unloaded"); -#endif - erts_port_release(prt); - } - else erts_smp_port_state_unlock(prt); - } + kill_ports_driver_unloaded(dh); #if DDLL_SMP lock_drv_list(); /* Needed for future list operations */ #endif @@ -1104,7 +1067,7 @@ void erts_ddll_proc_dead(Process *p, ErtsProcLocks plocks) void erts_ddll_lock_driver(DE_Handle *dh, char *name) { DE_ProcEntry *p,*q; - assert_drv_list_locked(); + assert_drv_list_rwlocked(); notify_all(dh, name, ERL_DE_PROC_AWAIT_LOAD, am_UP, am_permanent); notify_all(dh, name, @@ -1127,19 +1090,22 @@ void erts_ddll_lock_driver(DE_Handle *dh, char *name) void erts_ddll_increment_port_count(DE_Handle *dh) { assert_drv_list_locked(); - dh->port_count++; + erts_smp_atomic32_inc_nob(&dh->port_count); } void erts_ddll_decrement_port_count(DE_Handle *dh) { assert_drv_list_locked(); - ASSERT(dh->port_count > 0); - dh->port_count--; +#if DEBUG + ASSERT(erts_smp_atomic32_dec_read_nob(&dh->port_count) >= 0); +#else + erts_smp_atomic32_dec_nob(&dh->port_count); +#endif } static void first_ddll_reference(DE_Handle *dh) { - assert_drv_list_locked(); + assert_drv_list_rwlocked(); erts_refc_init(&(dh->refc),1); } @@ -1167,7 +1133,7 @@ void erts_ddll_dereference_driver(DE_Handle *dh) static void dereference_all_processes(DE_Handle *dh) { DE_ProcEntry *p; - assert_drv_list_locked(); + assert_drv_list_rwlocked(); for(p = dh->procs;p != NULL; p = p->next) { if (p->awaiting_status == ERL_DE_PROC_LOADED) { ASSERT(!(p->flags & ERL_DE_FL_DEREFERENCED)); @@ -1180,7 +1146,7 @@ static void dereference_all_processes(DE_Handle *dh) static void restore_process_references(DE_Handle *dh) { DE_ProcEntry *p; - assert_drv_list_locked(); + assert_drv_list_rwlocked(); ASSERT(erts_refc_read(&(dh->refc),0) == 0); for(p = dh->procs;p != NULL; p = p->next) { if (p->awaiting_status == ERL_DE_PROC_LOADED) { @@ -1408,7 +1374,7 @@ static int is_last_user(DE_Handle *dh, Process *proc) { DE_ProcEntry *p = dh->procs; int found = 0; - assert_drv_list_locked(); + assert_drv_list_rwlocked(); while (p != NULL) { if (p->proc == proc && p->awaiting_status == ERL_DE_PROC_LOADED) { @@ -1429,7 +1395,7 @@ static DE_ProcEntry *find_proc_entry(DE_Handle *dh, Process *proc, Uint status) { DE_ProcEntry *p = dh->procs; - assert_drv_list_locked(); + assert_drv_list_rwlocked(); while (p != NULL) { if (p->proc == proc && p->awaiting_status == status) { @@ -1456,7 +1422,7 @@ static int num_procs(DE_Handle *dh, Uint status) { DE_ProcEntry *p = dh->procs; int i = 0; - assert_drv_list_locked(); + assert_drv_list_rwlocked(); while (p != NULL) { if (p->awaiting_status == status) { @@ -1471,7 +1437,7 @@ static int num_entries(DE_Handle *dh, Process *proc, Uint status) { DE_ProcEntry *p = dh->procs; int i = 0; - assert_drv_list_locked(); + assert_drv_list_rwlocked(); while (p != NULL) { if (p->awaiting_status == status && p->proc == proc) { ++i; @@ -1484,7 +1450,7 @@ static int num_entries(DE_Handle *dh, Process *proc, Uint status) { static void add_proc_loaded(DE_Handle *dh, Process *proc) { DE_ProcEntry *p; - assert_drv_list_locked(); + assert_drv_list_rwlocked(); p = erts_alloc(ERTS_ALC_T_DDLL_PROCESS, sizeof(DE_ProcEntry)); p->proc = proc; p->flags = 0; @@ -1496,7 +1462,7 @@ static void add_proc_loaded(DE_Handle *dh, Process *proc) static void add_proc_loaded_deref(DE_Handle *dh, Process *proc) { DE_ProcEntry *p; - assert_drv_list_locked(); + assert_drv_list_rwlocked(); p = erts_alloc(ERTS_ALC_T_DDLL_PROCESS, sizeof(DE_ProcEntry)); p->proc = proc; p->awaiting_status = ERL_DE_PROC_LOADED; @@ -1516,7 +1482,7 @@ static void add_proc_waiting(DE_Handle *dh, Process *proc, Uint status, Eterm ref) { DE_ProcEntry *p; - assert_drv_list_locked(); + assert_drv_list_rwlocked(); p = erts_alloc(ERTS_ALC_T_DDLL_PROCESS, sizeof(DE_ProcEntry)); p->proc = proc; p->flags = 0; @@ -1530,7 +1496,7 @@ static Eterm add_monitor(Process *p, DE_Handle *dh, Uint status) { Eterm r; - assert_drv_list_locked(); + assert_drv_list_rwlocked(); r = erts_make_ref(p); add_proc_waiting(dh, p, status, r); return r; @@ -1541,7 +1507,7 @@ static void set_driver_reloading(DE_Handle *dh, Process *proc, char *path, char { DE_ProcEntry *p; - assert_drv_list_locked(); + assert_drv_list_rwlocked(); p = erts_alloc(ERTS_ALC_T_DDLL_PROCESS, sizeof(DE_ProcEntry)); p->proc = proc; p->awaiting_status = ERL_DE_OK; @@ -1562,9 +1528,9 @@ static int do_load_driver_entry(DE_Handle *dh, char *path, char *name) int res; ErlDrvEntry *dp; - assert_drv_list_locked(); + assert_drv_list_rwlocked(); - if ((res = erts_sys_ddll_open(path, &(dh->handle))) != ERL_DE_NO_ERROR) { + if ((res = erts_sys_ddll_open(path, &(dh->handle), NULL)) != ERL_DE_NO_ERROR) { return res; } @@ -1582,8 +1548,10 @@ static int do_load_driver_entry(DE_Handle *dh, char *path, char *name) switch (dp->extended_marker) { case ERL_DRV_EXTENDED_MARKER: - if (ERL_DRV_EXTENDED_MAJOR_VERSION != dp->major_version - || ERL_DRV_EXTENDED_MINOR_VERSION < dp->minor_version) { + if (dp->major_version < ERL_DRV_MIN_REQUIRED_MAJOR_VERSION_ON_LOAD + || (ERL_DRV_EXTENDED_MAJOR_VERSION < dp->major_version + || (ERL_DRV_EXTENDED_MAJOR_VERSION == dp->major_version + && ERL_DRV_EXTENDED_MINOR_VERSION < dp->minor_version))) { /* Incompatible driver version */ res = ERL_DE_LOAD_ERROR_INCORRECT_VERSION; goto error; @@ -1600,7 +1568,7 @@ static int do_load_driver_entry(DE_Handle *dh, char *path, char *name) goto error; } erts_smp_atomic_init_nob(&(dh->refc), (erts_aint_t) 0); - dh->port_count = 0; + erts_smp_atomic32_init_nob(&dh->port_count, 0); dh->full_path = erts_alloc(ERTS_ALC_T_DDLL_HANDLE, sys_strlen(path) + 1); sys_strcpy(dh->full_path, path); dh->flags = 0; @@ -1626,7 +1594,7 @@ static int do_unload_driver_entry(DE_Handle *dh, Eterm *save_name) { erts_driver_t *q, *p = driver_list; - assert_drv_list_locked(); + assert_drv_list_rwlocked(); while (p != NULL) { if (p->handle == dh) { @@ -1666,11 +1634,11 @@ static int load_driver_entry(DE_Handle **dhp, char *path, char *name) int res; DE_Handle *dh = erts_alloc(ERTS_ALC_T_DDLL_HANDLE, sizeof(DE_Handle)); - assert_drv_list_locked(); + assert_drv_list_rwlocked(); dh->handle = NULL; dh->procs = NULL; - dh->port_count = 0; + erts_smp_atomic32_init_nob(&dh->port_count, 0); erts_refc_init(&(dh->refc), (erts_aint_t) 0); dh->status = -1; dh->reload_full_path = NULL; @@ -1704,7 +1672,7 @@ static int reload_driver_entry(DE_Handle *dh) int loadres; Uint flags = dh->reload_flags; - assert_drv_list_locked(); + assert_drv_list_rwlocked(); dh->reload_full_path = NULL; dh->reload_driver_name = NULL; @@ -1742,7 +1710,7 @@ static void notify_proc(Process *proc, Eterm ref, Eterm driver_name, Eterm type, ErtsProcLocks rp_locks = 0; ERTS_SMP_CHK_NO_PROC_LOCKS; - assert_drv_list_locked(); + assert_drv_list_rwlocked(); if (errcode != 0) { int need = load_error_need(errcode); Eterm e; @@ -1775,7 +1743,7 @@ static void notify_all(DE_Handle *dh, char *name, Uint awaiting, Eterm type, Ete { DE_ProcEntry **p; - assert_drv_list_locked(); + assert_drv_list_rwlocked(); p = &(dh->procs); while (*p != NULL) { @@ -1875,13 +1843,16 @@ static Eterm build_load_error_hp(Eterm *hp, int code) static Eterm mkatom(char *str) { - return am_atom_put(str, sys_strlen(str)); + return erts_atom_put((byte *) str, + sys_strlen(str), + ERTS_ATOM_ENC_LATIN1, + 1); } static char *pick_list_or_atom(Eterm name_term) { char *name = NULL; - Uint name_len; + ErlDrvSizeT name_len; if (is_atom(name_term)) { Atom *ap = atom_tab(atom_val(name_term)); if (ap->len == 0) { @@ -1897,7 +1868,7 @@ static char *pick_list_or_atom(Eterm name_term) goto error; } name = erts_alloc(ERTS_ALC_T_DDLL_TMP_BUF, name_len + 1); - if (io_list_to_buf(name_term, name, name_len) != 0) { + if (erts_iolist_to_buf(name_term, name, name_len) != 0) { goto error; } name[name_len] = '\0'; @@ -1918,10 +1889,10 @@ static int build_proc_info(DE_Handle *dh, ProcEntryInfo **out_pei, Uint filter) int i; DE_ProcEntry *pe; - assert_drv_list_locked(); + assert_drv_list_rwlocked(); for (pe = dh->procs; pe != NULL; pe = pe->next) { - Eterm id = pe->proc->id; + Eterm id = pe->proc->common.id; Uint stat = pe->awaiting_status; if (stat == ERL_DE_PROC_AWAIT_UNLOAD_ONLY) { stat = ERL_DE_PROC_AWAIT_UNLOAD; diff --git a/erts/emulator/beam/erl_bif_guard.c b/erts/emulator/beam/erl_bif_guard.c index a715756c15..bbd8aa31d9 100644 --- a/erts/emulator/beam/erl_bif_guard.c +++ b/erts/emulator/beam/erl_bif_guard.c @@ -33,6 +33,7 @@ #include "bif.h" #include "big.h" #include "erl_binary.h" +#include "erl_map.h" static Eterm gc_double_to_integer(Process* p, double x, Eterm* reg, Uint live); @@ -455,6 +456,28 @@ Eterm erts_gc_byte_size_1(Process* p, Eterm* reg, Uint live) } } +Eterm erts_gc_map_size_1(Process* p, Eterm* reg, Uint live) +{ + Eterm arg = reg[live]; + if (is_map(arg)) { + map_t *mp = (map_t*)map_val(arg); + Uint size = map_get_size(mp); + if (IS_USMALL(0, size)) { + return make_small(size); + } else { + Eterm* hp; + if (ERTS_NEED_GC(p, BIG_UINT_HEAP_SIZE)) { + erts_garbage_collect(p, BIG_UINT_HEAP_SIZE, reg, live); + } + hp = p->htop; + p->htop += BIG_UINT_HEAP_SIZE; + return uint_to_big(size, hp); + } + } else { + BIF_ERROR(p, BADARG); + } +} + Eterm erts_gc_abs_1(Process* p, Eterm* reg, Uint live) { Eterm arg; diff --git a/erts/emulator/beam/erl_bif_info.c b/erts/emulator/beam/erl_bif_info.c index 45dc5fb11c..6915765dab 100755..100644 --- a/erts/emulator/beam/erl_bif_info.c +++ b/erts/emulator/beam/erl_bif_info.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 1999-2012. All Rights Reserved. + * Copyright Ericsson AB 1999-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -30,6 +30,7 @@ #include "bif.h" #include "big.h" #include "erl_version.h" +#include "erl_compile_flags.h" #include "erl_db_util.h" #include "erl_message.h" #include "erl_binary.h" @@ -40,6 +41,8 @@ #include "erl_cpu_topology.h" #include "erl_async.h" #include "erl_thr_progress.h" +#define ERTS_PTAB_WANT_DEBUG_FUNCS__ +#include "erl_ptab.h" #ifdef HIPE #include "hipe_arch.h" #endif @@ -57,17 +60,24 @@ static Export* alloc_info_trap = NULL; static Export* alloc_sizes_trap = NULL; static Export *gather_sched_wall_time_res_trap; +static Export *gather_gc_info_res_trap; #define DECL_AM(S) Eterm AM_ ## S = am_atom_put(#S, sizeof(#S) - 1) +static char otp_version[] = ERLANG_OTP_VERSION; /* Keep erts_system_version as a global variable for easy access from a core */ -static char erts_system_version[] = ("Erlang " ERLANG_OTP_RELEASE - " (erts-" ERLANG_VERSION ")" +static char erts_system_version[] = ("Erlang/OTP " ERLANG_OTP_RELEASE + "%s" + " [erts-" ERLANG_VERSION "]" #if !HEAP_ON_C_STACK && !HALFWORD_HEAP " [no-c-stack-objects]" #endif #ifndef OTP_RELEASE +#ifdef ERLANG_GIT_VERSION + " [source-" ERLANG_GIT_VERSION "]" +#else " [source]" +#endif #endif #ifdef ARCH_64 #if HALFWORD_HEAP @@ -80,6 +90,9 @@ static char erts_system_version[] = ("Erlang " ERLANG_OTP_RELEASE " [smp:%beu:%beu]" #endif #ifdef USE_THREADS +#ifdef ERTS_DIRTY_SCHEDULERS + " [ds:%beu:%beu:%beu]" +#endif " [async-threads:%d]" #endif #ifdef HIPE @@ -108,6 +121,9 @@ static char erts_system_version[] = ("Erlang " ERLANG_OTP_RELEASE #ifdef VALGRIND " [valgrind-compiled]" #endif +#ifdef ERTS_FRMPTR + " [frame-pointer]" +#endif #ifdef USE_DTRACE " [dtrace]" #endif @@ -128,8 +144,6 @@ static char erts_system_version[] = ("Erlang " ERLANG_OTP_RELEASE static Eterm os_type_tuple; static Eterm os_version_tuple; -static BIF_RETTYPE port_info(Process* p, Eterm portid, Eterm item); - static Eterm current_function(Process* p, Process* rp, Eterm** hpp, int full_info); static Eterm current_stacktrace(Process* p, Process* rp, Eterm** hpp); @@ -295,13 +309,39 @@ make_link_list(Process *p, ErtsLink *root, Eterm tail) int erts_print_system_version(int to, void *arg, Process *c_p) { + int i, rc = -1; + char *rc_str = ""; + char rc_buf[100]; + char *ov = otp_version; #ifdef ERTS_SMP Uint total, online, active; - (void) erts_schedulers_state(&total, &online, &active, 0); +#ifdef ERTS_DIRTY_SCHEDULERS + Uint dirty_cpu, dirty_cpu_onln, dirty_io; + + (void) erts_schedulers_state(&total, &online, &active, &dirty_cpu, &dirty_cpu_onln, &dirty_io, 0); +#else + (void) erts_schedulers_state(&total, &online, &active, NULL, NULL, NULL, 0); +#endif #endif - return erts_print(to, arg, erts_system_version + for (i = 0; i < sizeof(otp_version)-4; i++) { + if (ov[i] == '-' && ov[i+1] == 'r' && ov[i+2] == 'c') + rc = atoi(&ov[i+3]); + } + if (rc >= 0) { + if (rc == 0) + rc_str = " [DEVELOPMENT]"; + else { + erts_snprintf(rc_buf, sizeof(rc_buf), " [RELEASE CANDIDATE %d]", rc); + rc_str = rc_buf; + } + } + return erts_print(to, arg, erts_system_version, + rc_str #ifdef ERTS_SMP , total, online +#ifdef ERTS_DIRTY_SCHEDULERS + , dirty_cpu, dirty_cpu_onln, dirty_io +#endif #endif #ifdef USE_THREADS , erts_async_max_threads @@ -482,27 +522,6 @@ collect_one_suspend_monitor(ErtsSuspendMonitor *smon, void *vsmicp) } } - -static void one_link_size(ErtsLink *lnk, void *vpu) -{ - Uint *pu = vpu; - *pu += ERTS_LINK_SIZE*sizeof(Uint); - if(!IS_CONST(lnk->pid)) - *pu += NC_HEAP_SIZE(lnk->pid)*sizeof(Uint); - if (lnk->type != LINK_NODE && ERTS_LINK_ROOT(lnk) != NULL) { - erts_doforall_links(ERTS_LINK_ROOT(lnk),&one_link_size,vpu); - } -} -static void one_mon_size(ErtsMonitor *mon, void *vpu) -{ - Uint *pu = vpu; - *pu += ERTS_MONITOR_SIZE*sizeof(Uint); - if(!IS_CONST(mon->pid)) - *pu += NC_HEAP_SIZE(mon->pid)*sizeof(Uint); - if(!IS_CONST(mon->ref)) - *pu += NC_HEAP_SIZE(mon->ref)*sizeof(Uint); -} - /* * process_info/[1,2] */ @@ -873,8 +892,7 @@ BIF_RETTYPE process_info_1(BIF_ALIST_1) && external_pid_dist_entry(BIF_ARG_1) == erts_this_dist_entry) BIF_RET(am_undefined); - if (is_not_internal_pid(BIF_ARG_1) - || internal_pid_index(BIF_ARG_1) >= erts_max_processes) { + if (is_not_internal_pid(BIF_ARG_1)) { BIF_ERROR(BIF_P, BADARG); } @@ -909,8 +927,7 @@ BIF_RETTYPE process_info_2(BIF_ALIST_2) && external_pid_dist_entry(pid) == erts_this_dist_entry) BIF_RET(am_undefined); - if (is_not_internal_pid(pid) - || internal_pid_index(BIF_ARG_1) >= erts_max_processes) { + if (is_not_internal_pid(pid)) { BIF_ERROR(BIF_P, BADARG); } @@ -1002,9 +1019,9 @@ process_info_aux(Process *BIF_P, switch (item) { case am_registered_name: - if (rp->reg != NULL) { + if (rp->common.u.alive.reg) { hp = HAlloc(BIF_P, 3); - res = rp->reg->name; + res = rp->common.u.alive.reg->name; } else { if (always_wrap) { hp = HAlloc(BIF_P, 3); @@ -1050,7 +1067,7 @@ process_info_aux(Process *BIF_P, ERTS_SMP_MSGQ_MV_INQ2PRIVQ(rp); n = rp->msg.len; - if (n == 0 || rp->trace_flags & F_SENSITIVE) { + if (n == 0 || ERTS_TRACE_FLAGS(rp) & F_SENSITIVE) { hp = HAlloc(BIF_P, 3); } else { int remove_bad_messages = 0; @@ -1209,7 +1226,7 @@ process_info_aux(Process *BIF_P, INIT_MONITOR_INFOS(mic); - erts_doforall_links(rp->nlinks,&collect_one_link,&mic); + erts_doforall_links(ERTS_P_LINKS(rp),&collect_one_link,&mic); hp = HAlloc(BIF_P, 3 + mic.sz); res = NIL; @@ -1227,7 +1244,7 @@ process_info_aux(Process *BIF_P, int i; INIT_MONITOR_INFOS(mic); - erts_doforall_monitors(rp->monitors,&collect_one_origin_monitor,&mic); + erts_doforall_monitors(ERTS_P_MONITORS(rp),&collect_one_origin_monitor,&mic); hp = HAlloc(BIF_P, 3 + mic.sz); res = NIL; for (i = 0; i < mic.mi_i; i++) { @@ -1264,7 +1281,7 @@ process_info_aux(Process *BIF_P, Eterm item; INIT_MONITOR_INFOS(mic); - erts_doforall_monitors(rp->monitors,&collect_one_target_monitor,&mic); + erts_doforall_monitors(ERTS_P_MONITORS(rp),&collect_one_target_monitor,&mic); hp = HAlloc(BIF_P, 3 + mic.sz); res = NIL; @@ -1330,7 +1347,7 @@ process_info_aux(Process *BIF_P, } case am_dictionary: - if (rp->trace_flags & F_SENSITIVE) { + if (ERTS_TRACE_FLAGS(rp) & F_SENSITIVE) { res = NIL; } else { res = erts_dictionary_copy(BIF_P, rp->dictionary); @@ -1338,13 +1355,15 @@ process_info_aux(Process *BIF_P, hp = HAlloc(BIF_P, 3); break; - case am_trap_exit: + case am_trap_exit: { + erts_aint32_t state = erts_smp_atomic32_read_nob(&rp->state); hp = HAlloc(BIF_P, 3); - if (rp->flags & F_TRAPEXIT) + if (state & ERTS_PSFLG_TRAP_EXIT) res = am_true; else res = am_false; break; + } case am_error_handler: hp = HAlloc(BIF_P, 3); @@ -1416,41 +1435,8 @@ process_info_aux(Process *BIF_P, } case am_memory: { /* Memory consumed in bytes */ - ErlMessage *mp; - Uint size = 0; Uint hsz = 3; - struct saved_calls *scb; - size += sizeof(Process); - - ERTS_SMP_MSGQ_MV_INQ2PRIVQ(rp); - - erts_doforall_links(rp->nlinks, &one_link_size, &size); - erts_doforall_monitors(rp->monitors, &one_mon_size, &size); - size += (rp->heap_sz + rp->mbuf_sz) * sizeof(Eterm); - if (rp->old_hend && rp->old_heap) - size += (rp->old_hend - rp->old_heap) * sizeof(Eterm); - - size += rp->msg.len * sizeof(ErlMessage); - - for (mp = rp->msg.first; mp; mp = mp->next) - if (mp->data.attached) - size += erts_msg_attached_data_size(mp)*sizeof(Eterm); - - if (rp->arg_reg != rp->def_arg_reg) { - size += rp->arity * sizeof(rp->arg_reg[0]); - } - - if (rp->psd) - size += sizeof(ErtsPSD); - - scb = ERTS_PROC_GET_SAVED_CALLS_BUF(rp); - if (scb) { - size += (sizeof(struct saved_calls) - + (scb->len-1) * sizeof(scb->ct[0])); - } - - size += erts_dicts_mem_size(rp); - + Uint size = erts_process_memory(rp); (void) erts_bld_uint(NULL, &hsz, size); hp = HAlloc(BIF_P, hsz); res = erts_bld_uint(&hp, NULL, size); @@ -1498,7 +1484,7 @@ process_info_aux(Process *BIF_P, case am_trace: hp = HAlloc(BIF_P, 3); - res = make_small(rp->trace_flags & TRACEE_FLAGS); + res = make_small(ERTS_TRACE_FLAGS(rp) & TRACEE_FLAGS); break; case am_binary: { @@ -1603,7 +1589,7 @@ current_function(Process* BIF_P, Process* rp, Eterm** hpp, int full_info) } } - if (BIF_P->id == rp->id) { + if (BIF_P == rp) { FunctionInfo fi2; /* @@ -1717,13 +1703,22 @@ info_1_tuple(Process* BIF_P, /* Pointer to current process. */ sel = *tp++; - if (sel == am_allocator_sizes) { + if (sel == am_memory_internal) { + switch (arity) { + case 3: + if (erts_request_alloc_info(BIF_P, tp[0], tp[1], 1, 1)) + return am_true; + default: + goto badarg; + } + } + else if (sel == am_allocator_sizes) { switch (arity) { case 2: ERTS_BIF_PREP_TRAP1(ret, alloc_sizes_trap, BIF_P, *tp); return ret; case 3: - if (erts_request_alloc_info(BIF_P, tp[0], tp[1], 1)) + if (erts_request_alloc_info(BIF_P, tp[0], tp[1], 1, 0)) return am_true; default: goto badarg; @@ -1782,7 +1777,7 @@ info_1_tuple(Process* BIF_P, /* Pointer to current process. */ ERTS_BIF_PREP_TRAP1(ret, alloc_info_trap, BIF_P, *tp); return ret; case 3: - if (erts_request_alloc_info(BIF_P, tp[0], tp[1], 0)) + if (erts_request_alloc_info(BIF_P, tp[0], tp[1], 0, 0)) return am_true; default: goto badarg; @@ -1807,7 +1802,11 @@ info_1_tuple(Process* BIF_P, /* Pointer to current process. */ #if defined(PURIFY) BIF_RET(erts_make_integer(purify_new_leaks(), BIF_P)); #elif defined(VALGRIND) +# ifdef VALGRIND_DO_ADDED_LEAK_CHECK + VALGRIND_DO_ADDED_LEAK_CHECK; +# else VALGRIND_DO_LEAK_CHECK; +# endif BIF_RET(make_small(0)); #endif } else if (*tp == am_fd) { @@ -1835,17 +1834,17 @@ info_1_tuple(Process* BIF_P, /* Pointer to current process. */ # define ERTS_ERROR_CHECKER_PRINTF_XML VALGRIND_PRINTF_XML # endif #endif - Uint buf_size = 8*1024; /* Try with 8KB first */ + ErlDrvSizeT buf_size = 8*1024; /* Try with 8KB first */ char *buf = erts_alloc(ERTS_ALC_T_TMP, buf_size); - int r = io_list_to_buf(*tp, (char*) buf, buf_size - 1); - if (r < 0) { + ErlDrvSizeT r = erts_iolist_to_buf(*tp, (char*) buf, buf_size - 1); + if (ERTS_IOLIST_TO_BUF_FAILED(r)) { erts_free(ERTS_ALC_T_TMP, (void *) buf); if (erts_iolist_size(*tp, &buf_size)) { goto badarg; } buf_size++; buf = erts_alloc(ERTS_ALC_T_TMP, buf_size); - r = io_list_to_buf(*tp, (char*) buf, buf_size - 1); + r = erts_iolist_to_buf(*tp, (char*) buf, buf_size - 1); ASSERT(r == buf_size - 1); } buf[buf_size - 1 - r] = '\0'; @@ -2092,6 +2091,9 @@ BIF_RETTYPE system_info_1(BIF_ALIST_1) #elif defined(ERTS_ENABLE_LOCK_COUNT) ERTS_DECL_AM(lcnt); BIF_RET(AM_lcnt); +#elif defined(ERTS_FRMPTR) + ERTS_DECL_AM(frmptr); + BIF_RET(AM_frmptr); #else BIF_RET(am_opt); #endif @@ -2124,7 +2126,7 @@ BIF_RETTYPE system_info_1(BIF_ALIST_1) BIF_RET(res); } else if (BIF_ARG_1 == am_sequential_tracer) { val = erts_get_system_seq_tracer(); - ASSERT(is_internal_pid(val) || is_internal_port(val) || val==am_false) + ASSERT(is_internal_pid(val) || is_internal_port(val) || val==am_false); hp = HAlloc(BIF_P, 3); res = TUPLE2(hp, am_sequential_tracer, val); BIF_RET(res); @@ -2157,9 +2159,13 @@ BIF_RETTYPE system_info_1(BIF_ALIST_1) res = TUPLE2(hp, am_min_bin_vheap_size,make_small(BIN_VH_MIN_SIZE)); BIF_RET(res); } else if (BIF_ARG_1 == am_process_count) { - BIF_RET(make_small(erts_process_count())); + BIF_RET(make_small(erts_ptab_count(&erts_proc))); } else if (BIF_ARG_1 == am_process_limit) { - BIF_RET(make_small(erts_max_processes)); + BIF_RET(make_small(erts_ptab_max(&erts_proc))); + } else if (BIF_ARG_1 == am_port_count) { + BIF_RET(make_small(erts_ptab_count(&erts_port))); + } else if (BIF_ARG_1 == am_port_limit) { + BIF_RET(make_small(erts_ptab_max(&erts_port))); } else if (BIF_ARG_1 == am_info || BIF_ARG_1 == am_procs || BIF_ARG_1 == am_loaded @@ -2294,8 +2300,10 @@ BIF_RETTYPE system_info_1(BIF_ALIST_1) for (i = num_instructions-1; i >= 0; i--) { res = erts_bld_cons(hpp, hszp, erts_bld_tuple(hpp, hszp, 2, - am_atom_put(opc[i].name, - strlen(opc[i].name)), + erts_atom_put(opc[i].name, + strlen(opc[i].name), + ERTS_ATOM_ENC_LATIN1, + 1), erts_bld_uint(hpp, hszp, opc[i].count)), res); @@ -2477,6 +2485,9 @@ BIF_RETTYPE system_info_1(BIF_ALIST_1) switch (erts_schedulers_state(&total, &online, &active, + NULL, + NULL, + NULL, 1)) { case ERTS_SCHDLR_SSPND_DONE: { Eterm *hp = HAlloc(BIF_P, 4); @@ -2500,7 +2511,7 @@ BIF_RETTYPE system_info_1(BIF_ALIST_1) BIF_RET(make_small(1)); #else Uint total, online, active; - switch (erts_schedulers_state(&total, &online, &active, 1)) { + switch (erts_schedulers_state(&total, &online, &active, NULL, NULL, NULL, 1)) { case ERTS_SCHDLR_SSPND_DONE: BIF_RET(make_small(online)); case ERTS_SCHDLR_SSPND_YIELD_RESTART: @@ -2517,7 +2528,7 @@ BIF_RETTYPE system_info_1(BIF_ALIST_1) BIF_RET(make_small(1)); #else Uint total, online, active; - switch (erts_schedulers_state(&total, &online, &active, 1)) { + switch (erts_schedulers_state(&total, &online, &active, NULL, NULL, NULL, 1)) { case ERTS_SCHDLR_SSPND_DONE: BIF_RET(make_small(active)); case ERTS_SCHDLR_SSPND_YIELD_RESTART: @@ -2529,9 +2540,26 @@ BIF_RETTYPE system_info_1(BIF_ALIST_1) BIF_ERROR(BIF_P, EXC_INTERNAL_ERROR); } #endif +#if defined(ERTS_SMP) && defined(ERTS_DIRTY_SCHEDULERS) + } else if (ERTS_IS_ATOM_STR("dirty_cpu_schedulers", BIF_ARG_1)) { + Uint dirty_cpu; + erts_schedulers_state(NULL, NULL, NULL, &dirty_cpu, NULL, NULL, 1); + BIF_RET(make_small(dirty_cpu)); + } else if (ERTS_IS_ATOM_STR("dirty_cpu_schedulers_online", BIF_ARG_1)) { + Uint dirty_cpu_onln; + erts_schedulers_state(NULL, NULL, NULL, NULL, &dirty_cpu_onln, NULL, 1); + BIF_RET(make_small(dirty_cpu_onln)); + } else if (ERTS_IS_ATOM_STR("dirty_io_schedulers", BIF_ARG_1)) { + Uint dirty_io; + erts_schedulers_state(NULL, NULL, NULL, NULL, NULL, &dirty_io, 1); + BIF_RET(make_small(dirty_io)); +#endif } else if (ERTS_IS_ATOM_STR("run_queues", BIF_ARG_1)) { res = make_small(erts_no_run_queues); BIF_RET(res); + } else if (ERTS_IS_ATOM_STR("port_parallelism", BIF_ARG_1)) { + res = erts_port_parallelism ? am_true : am_false; + BIF_RET(res); } else if (ERTS_IS_ATOM_STR("c_compiler_used", BIF_ARG_1)) { Eterm *hp = NULL; Uint sz = 0; @@ -2602,74 +2630,14 @@ BIF_RETTYPE system_info_1(BIF_ALIST_1) hp = hsz ? HAlloc(BIF_P, hsz) : NULL; res = erts_bld_uint(&hp, NULL, erts_dist_buf_busy_limit); BIF_RET(res); - } else if (ERTS_IS_ATOM_STR("print_ethread_info", BIF_ARG_1)) { -#if defined(ETHR_NATIVE_ATOMIC32_IMPL) \ - || defined(ETHR_NATIVE_ATOMIC64_IMPL) \ - || defined(ETHR_NATIVE_DW_ATOMIC_IMPL) - int i; - char **str; -#endif -#ifdef ETHR_NATIVE_ATOMIC32_IMPL - erts_printf("32-bit native atomics: %s\n", - ETHR_NATIVE_ATOMIC32_IMPL); - str = ethr_native_atomic32_ops(); - for (i = 0; str[i]; i++) - erts_printf("ethr_native_atomic32_%s()\n", str[i]); -#endif -#ifdef ETHR_NATIVE_ATOMIC64_IMPL - erts_printf("64-bit native atomics: %s\n", - ETHR_NATIVE_ATOMIC64_IMPL); - str = ethr_native_atomic64_ops(); - for (i = 0; str[i]; i++) - erts_printf("ethr_native_atomic64_%s()\n", str[i]); -#endif -#ifdef ETHR_NATIVE_DW_ATOMIC_IMPL - if (ethr_have_native_dw_atomic()) { - erts_printf("Double word native atomics: %s\n", - ETHR_NATIVE_DW_ATOMIC_IMPL); - str = ethr_native_dw_atomic_ops(); - for (i = 0; str[i]; i++) - erts_printf("ethr_native_dw_atomic_%s()\n", str[i]); - str = ethr_native_su_dw_atomic_ops(); - for (i = 0; str[i]; i++) - erts_printf("ethr_native_su_dw_atomic_%s()\n", str[i]); - } -#endif -#ifdef ETHR_NATIVE_SPINLOCK_IMPL - erts_printf("Native spin-locks: %s\n", ETHR_NATIVE_SPINLOCK_IMPL); -#endif -#ifdef ETHR_NATIVE_RWSPINLOCK_IMPL - erts_printf("Native rwspin-locks: %s\n", ETHR_NATIVE_RWSPINLOCK_IMPL); -#endif -#ifdef ETHR_X86_RUNTIME_CONF_HAVE_SSE2__ - erts_printf("SSE2 support: %s\n", (ETHR_X86_RUNTIME_CONF_HAVE_SSE2__ - ? "yes" : "no")); -#endif -#ifdef ETHR_X86_OUT_OF_ORDER - erts_printf("x86" -#ifdef ARCH_64 - "_64" -#endif - " out of order\n"); -#endif -#ifdef ETHR_SPARC_TSO - erts_printf("Sparc TSO\n"); -#endif -#ifdef ETHR_SPARC_PSO - erts_printf("Sparc PSO\n"); -#endif -#ifdef ETHR_SPARC_RMO - erts_printf("Sparc RMO\n"); -#endif -#if defined(ETHR_PPC_HAVE_LWSYNC) - erts_printf("Have lwsync instruction: yes\n"); -#elif defined(ETHR_PPC_HAVE_NO_LWSYNC) - erts_printf("Have lwsync instruction: no\n"); -#elif defined(ETHR_PPC_RUNTIME_CONF_HAVE_LWSYNC__) - erts_printf("Have lwsync instruction: %s (runtime test)\n", - ETHR_PPC_RUNTIME_CONF_HAVE_LWSYNC__ ? "yes" : "no"); -#endif - BIF_RET(am_true); + } else if (ERTS_IS_ATOM_STR("ethread_info", BIF_ARG_1)) { + BIF_RET(erts_get_ethread_info(BIF_P)); + } + else if (ERTS_IS_ATOM_STR("emu_args", BIF_ARG_1)) { + BIF_RET(erts_get_emu_args(BIF_P)); + } + else if (ERTS_IS_ATOM_STR("beam_jump_table", BIF_ARG_1)) { + BIF_RET(erts_beam_jump_table() ? am_true : am_false); } else if (ERTS_IS_ATOM_STR("dynamic_trace", BIF_ARG_1)) { #if defined(USE_DTRACE) @@ -2695,70 +2663,43 @@ BIF_RETTYPE system_info_1(BIF_ALIST_1) BIF_RET(am_true); } #endif + else if (ERTS_IS_ATOM_STR("compile_info",BIF_ARG_1)) { + Uint sz; + Eterm res = NIL, tup, text; + Eterm *hp = HAlloc(BIF_P, 3*(2 + 3) + /* three 2-tuples and three cons */ + 2*(strlen(erts_build_flags_CONFIG_H) + + strlen(erts_build_flags_CFLAGS) + + strlen(erts_build_flags_LDFLAGS))); + + sz = strlen(erts_build_flags_CONFIG_H); + text = buf_to_intlist(&hp, erts_build_flags_CONFIG_H, sz, NIL); + tup = TUPLE2(hp, am_config_h, text); hp += 3; + res = CONS(hp, tup, res); hp += 2; + + sz = strlen(erts_build_flags_CFLAGS); + text = buf_to_intlist(&hp, erts_build_flags_CFLAGS, sz, NIL); + tup = TUPLE2(hp, am_cflags, text); hp += 3; + res = CONS(hp, tup, res); hp += 2; + + sz = strlen(erts_build_flags_LDFLAGS); + text = buf_to_intlist(&hp, erts_build_flags_LDFLAGS, sz, NIL); + tup = TUPLE2(hp, am_ldflags, text); hp += 3; + res = CONS(hp, tup, res); hp += 2; - BIF_ERROR(BIF_P, BADARG); -} - -BIF_RETTYPE -port_info_1(BIF_ALIST_1) -{ - Process* p = BIF_P; - Eterm pid = BIF_ARG_1; - static Eterm keys[] = { - am_name, - am_links, - am_id, - am_connected, - am_input, - am_output, - am_os_pid - }; - Eterm items[ASIZE(keys)]; - Eterm result = NIL; - Eterm reg_name; - Eterm* hp; - Uint need; - int i; - - /* - * Collect all information about the port. - */ - - for (i = 0; i < ASIZE(keys); i++) { - Eterm item; - - item = port_info(p, pid, keys[i]); - if (is_non_value(item)) { - return THE_NON_VALUE; - } - if (item == am_undefined) { - return am_undefined; - } - items[i] = item; - } - reg_name = port_info(p, pid, am_registered_name); - - /* - * Build the resulting list. - */ - - need = 2*ASIZE(keys); - if (is_tuple(reg_name)) { - need += 2; + BIF_RET(res); } - hp = HAlloc(p, need); - for (i = ASIZE(keys) - 1; i >= 0; i--) { - result = CONS(hp, items[i], result); - hp += 2; + else if (ERTS_IS_ATOM_STR("ets_limit",BIF_ARG_1)) { + BIF_RET(make_small(erts_db_get_max_tabs())); } - if (is_tuple(reg_name)) { - result = CONS(hp, reg_name, result); + else if (ERTS_IS_ATOM_STR("tolerant_timeofday",BIF_ARG_1)) { + BIF_RET(erts_disable_tolerant_timeofday + ? am_disabled + : am_enabled); } - return result; + BIF_ERROR(BIF_P, BADARG); } - /**********************************************************************/ /* Return information on ports */ /* Info: @@ -2771,38 +2712,20 @@ port_info_1(BIF_ALIST_1) ** os_pid The child's process ID */ -BIF_RETTYPE port_info_2(BIF_ALIST_2) -{ - return port_info(BIF_P, BIF_ARG_1, BIF_ARG_2); -} - -static BIF_RETTYPE port_info(Process* p, Eterm portid, Eterm item) +Eterm +erts_bld_port_info(Eterm **hpp, ErlOffHeap *ohp, Uint *szp, Port *prt, Eterm item) { - BIF_RETTYPE ret; - Port *prt; - Eterm res; - Eterm* hp; - int count; - - if (is_internal_port(portid)) - prt = erts_id2port(portid, p, ERTS_PROC_LOCK_MAIN); - else if (is_atom(portid)) - erts_whereis_name(p, ERTS_PROC_LOCK_MAIN, - portid, NULL, 0, 0, &prt); - else if (is_external_port(portid) - && external_port_dist_entry(portid) == erts_this_dist_entry) - BIF_RET(am_undefined); - else { - BIF_ERROR(p, BADARG); - } + Eterm res = THE_NON_VALUE; - if (!prt) { - BIF_RET(am_undefined); - } + ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt)); if (item == am_id) { - hp = HAlloc(p, 3); - res = make_small(internal_port_number(portid)); + if (hpp) + res = make_small(internal_port_index(prt->common.id)); + if (szp) { + res = am_true; + goto done; + } } else if (item == am_links) { MonitorInfoCollection mic; @@ -2811,17 +2734,26 @@ static BIF_RETTYPE port_info(Process* p, Eterm portid, Eterm item) INIT_MONITOR_INFOS(mic); - erts_doforall_links(prt->nlinks, &collect_one_link, &mic); + erts_doforall_links(ERTS_P_LINKS(prt), &collect_one_link, &mic); - hp = HAlloc(p, 3 + mic.sz); - res = NIL; - for (i = 0; i < mic.mi_i; i++) { - item = STORE_NC(&hp, &MSO(p), mic.mi[i].entity); - res = CONS(hp, item, res); - hp += 2; + if (szp) + *szp += mic.sz; + + if (hpp) { + res = NIL; + for (i = 0; i < mic.mi_i; i++) { + item = STORE_NC(hpp, ohp, mic.mi[i].entity); + res = CONS(*hpp, item, res); + *hpp += 2; + } } + DESTROY_MONITOR_INFOS(mic); + if (szp) { + res = am_true; + goto done; + } } else if (item == am_monitors) { MonitorInfoCollection mic; @@ -2830,82 +2762,97 @@ static BIF_RETTYPE port_info(Process* p, Eterm portid, Eterm item) INIT_MONITOR_INFOS(mic); - erts_doforall_monitors(prt->monitors, &collect_one_origin_monitor, &mic); + erts_doforall_monitors(ERTS_P_MONITORS(prt), &collect_one_origin_monitor, &mic); - hp = HAlloc(p, 3 + mic.sz); - res = NIL; - for (i = 0; i < mic.mi_i; i++) { - Eterm t; - item = STORE_NC(&hp, &MSO(p), mic.mi[i].entity); - t = TUPLE2(hp, am_process, item); - hp += 3; - res = CONS(hp, t, res); - hp += 2; + if (szp) + *szp += mic.sz; + + if (hpp) { + res = NIL; + for (i = 0; i < mic.mi_i; i++) { + Eterm t; + item = STORE_NC(hpp, ohp, mic.mi[i].entity); + t = TUPLE2(*hpp, am_process, item); + *hpp += 3; + res = CONS(*hpp, t, res); + *hpp += 2; + } } + DESTROY_MONITOR_INFOS(mic); + if (szp) { + res = am_true; + goto done; + } } else if (item == am_name) { - count = sys_strlen(prt->name); + int count = sys_strlen(prt->name); - hp = HAlloc(p, 3 + 2*count); - res = buf_to_intlist(&hp, prt->name, count, NIL); + if (hpp) + res = buf_to_intlist(hpp, prt->name, count, NIL); + + if (szp) { + *szp += 2*count; + res = am_true; + goto done; + } } else if (item == am_connected) { - hp = HAlloc(p, 3); - res = prt->connected; /* internal pid */ + if (hpp) + res = ERTS_PORT_GET_CONNECTED(prt); /* internal pid */ + if (szp) { + res = am_true; + goto done; + } } else if (item == am_input) { - Uint hsz = 3; - Uint n = prt->bytes_in; - (void) erts_bld_uint(NULL, &hsz, n); - hp = HAlloc(p, hsz); - res = erts_bld_uint(&hp, NULL, n); + res = erts_bld_uint(hpp, szp, prt->bytes_in); + if (szp) { + res = am_true; + goto done; + } } else if (item == am_output) { - Uint hsz = 3; - Uint n = prt->bytes_out; - (void) erts_bld_uint(NULL, &hsz, n); - hp = HAlloc(p, hsz); - res = erts_bld_uint(&hp, NULL, n); + res = erts_bld_uint(hpp, szp, prt->bytes_out); + if (szp) { + res = am_true; + goto done; + } } else if (item == am_os_pid) { - if (prt->os_pid >= 0) { - Uint hsz = 3; - UWord n = prt->os_pid; - (void) erts_bld_uword(NULL, &hsz, n); - hp = HAlloc(p, hsz); - res = erts_bld_uword(&hp, NULL, n); - } else { - hp = HAlloc(p, 3); - res = am_undefined; - } + res = (prt->os_pid < 0 + ? am_undefined + : erts_bld_uword(hpp, szp, (UWord) prt->os_pid)); + if (szp) { + res = am_true; + goto done; + } } else if (item == am_registered_name) { - RegProc *reg; - reg = prt->reg; - if (reg == NULL) { - ERTS_BIF_PREP_RET(ret, NIL); - goto done; - } else { - hp = HAlloc(p, 3); + RegProc *reg = prt->common.u.alive.reg; + if (reg) { res = reg->name; + if (szp) { + res = am_true; + goto done; + } + } + else { + if (szp) + return am_undefined; + return NIL; } } else if (item == am_memory) { /* All memory consumed in bytes (the Port struct should not be included though). */ - Uint hsz = 3; Uint size = 0; - ErlHeapFragment* bp; - - hp = HAlloc(p, 3); - erts_doforall_links(prt->nlinks, &one_link_size, &size); + erts_doforall_links(ERTS_P_LINKS(prt), &erts_one_link_size, &size); - for (bp = prt->bp; bp; bp = bp->next) - size += sizeof(ErlHeapFragment) + (bp->alloc_size - 1)*sizeof(Eterm); + size += erts_port_data_size(prt); if (prt->linebuf) size += sizeof(LineBuf) + prt->linebuf->ovsiz; @@ -2916,51 +2863,72 @@ static BIF_RETTYPE port_info(Process* p, Eterm portid, Eterm item) /* All memory allocated by the driver should be included, but it is hard to retrieve... */ - (void) erts_bld_uint(NULL, &hsz, size); - hp = HAlloc(p, hsz); - res = erts_bld_uint(&hp, NULL, size); + res = erts_bld_uint(hpp, szp, size); + if (szp) { + res = am_true; + goto done; + } } else if (item == am_queue_size) { Uint ioq_size = erts_port_ioq_size(prt); - Uint hsz = 3; - (void) erts_bld_uint(NULL, &hsz, ioq_size); - hp = HAlloc(p, hsz); - res = erts_bld_uint(&hp, NULL, ioq_size); + res = erts_bld_uint(hpp, szp, ioq_size); + if (szp) { + res = am_true; + goto done; + } } else if (ERTS_IS_ATOM_STR("locking", item)) { - hp = HAlloc(p, 3); + if (hpp) { #ifndef ERTS_SMP - res = am_false; + res = am_false; #else - if (prt->status & ERTS_PORT_SFLG_PORT_SPECIFIC_LOCK) { - DECL_AM(port_level); - ASSERT(prt->drv_ptr->flags - & ERL_DRV_FLAG_USE_PORT_LOCKING); - res = AM_port_level; + if (erts_atomic32_read_nob(&prt->state) + & ERTS_PORT_SFLG_PORT_SPECIFIC_LOCK) { + DECL_AM(port_level); + ASSERT(prt->drv_ptr->flags + & ERL_DRV_FLAG_USE_PORT_LOCKING); + res = AM_port_level; + } + else { + DECL_AM(driver_level); + ASSERT(!(prt->drv_ptr->flags + & ERL_DRV_FLAG_USE_PORT_LOCKING)); + res = AM_driver_level; + } +#endif } - else { - DECL_AM(driver_level); - ASSERT(!(prt->drv_ptr->flags - & ERL_DRV_FLAG_USE_PORT_LOCKING)); - res = AM_driver_level; + if (szp) { + res = am_true; + goto done; } -#endif + } + else if (item == am_parallelism) { + if (szp) { + res = am_true; + goto done; + } + res = ((ERTS_PTS_FLG_PARALLELISM & + erts_smp_atomic32_read_nob(&prt->sched.flags)) + ? am_true + : am_false); } else { - ERTS_BIF_PREP_ERROR(ret, p, BADARG); - goto done; + if (szp) + return am_false; + return THE_NON_VALUE; } - ERTS_BIF_PREP_RET(ret, TUPLE2(hp, item, res)); - - done: - - erts_smp_port_unlock(prt); +done: + if (szp) + *szp += 3; + if (hpp) { + res = TUPLE2(*hpp, item, res); + *hpp += 3; + } - return ret; + return res; } - BIF_RETTYPE fun_info_2(BIF_ALIST_2) { @@ -3092,21 +3060,16 @@ BIF_RETTYPE is_process_alive_1(BIF_ALIST_1) if(is_internal_pid(BIF_ARG_1)) { Process *rp; - if (BIF_ARG_1 == BIF_P->id) + if (BIF_ARG_1 == BIF_P->common.id) BIF_RET(am_true); - if(internal_pid_index(BIF_ARG_1) >= erts_max_processes) - BIF_ERROR(BIF_P, BADARG); - - rp = erts_pid2proc(BIF_P, ERTS_PROC_LOCK_MAIN, - BIF_ARG_1, ERTS_PROC_LOCK_STATUS); + rp = erts_proc_lookup_raw(BIF_ARG_1); if (!rp) { BIF_RET(am_false); } else { - int have_pending_exit = ERTS_PROC_PENDING_EXIT(rp); - erts_smp_proc_unlock(rp, ERTS_PROC_LOCK_STATUS); - if (have_pending_exit) + if (erts_smp_atomic32_read_acqb(&rp->state) + & (ERTS_PSFLG_PENDING_EXIT|ERTS_PSFLG_EXITING)) ERTS_BIF_AWAIT_X_DATA_TRAP(BIF_P, BIF_ARG_1, am_false); else BIF_RET(am_true); @@ -3176,18 +3139,10 @@ BIF_RETTYPE statistics_1(BIF_ALIST_1) res = TUPLE2(hp, cs, SMALL_ZERO); BIF_RET(res); } else if (BIF_ARG_1 == am_garbage_collection) { - Uint hsz = 4; - ErtsGCInfo gc_info; - Eterm gcs; - Eterm recl; - erts_gc_info(&gc_info); - (void) erts_bld_uint(NULL, &hsz, gc_info.garbage_collections); - (void) erts_bld_uint(NULL, &hsz, gc_info.reclaimed); - hp = HAlloc(BIF_P, hsz); - gcs = erts_bld_uint(&hp, NULL, gc_info.garbage_collections); - recl = erts_bld_uint(&hp, NULL, gc_info.reclaimed); - res = TUPLE3(hp, gcs, recl, SMALL_ZERO); - BIF_RET(res); + res = erts_gc_info_request(BIF_P); + if (is_non_value(res)) + BIF_RET(am_undefined); + BIF_TRAP1(gather_gc_info_res_trap, BIF_P, res); } else if (BIF_ARG_1 == am_reductions) { Uint reds; Uint diff; @@ -3315,12 +3270,11 @@ BIF_RETTYPE erts_debug_get_internal_state_1(BIF_ALIST_1) else if (ERTS_IS_ATOM_STR("next_pid", BIF_ARG_1) || ERTS_IS_ATOM_STR("next_port", BIF_ARG_1)) { /* Used by node_container_SUITE (emulator) */ - Eterm res; + Sint res; if (ERTS_IS_ATOM_STR("next_pid", BIF_ARG_1)) - res = erts_test_next_pid(0, 0); - else { - res = erts_test_next_port(0, 0); - } + res = erts_ptab_test_next_id(&erts_proc, 0, 0); + else + res = erts_ptab_test_next_id(&erts_port, 0, 0); if (res < 0) BIF_RET(am_false); BIF_RET(erts_make_integer(res, BIF_P)); @@ -3356,11 +3310,11 @@ BIF_RETTYPE erts_debug_get_internal_state_1(BIF_ALIST_1) } else if (ERTS_IS_ATOM_STR("processes", BIF_ARG_1)) { /* Used by process_SUITE (emulator) */ - BIF_RET(erts_debug_processes(BIF_P)); + BIF_RET(erts_debug_ptab_list(BIF_P, &erts_proc)); } else if (ERTS_IS_ATOM_STR("processes_bif_info", BIF_ARG_1)) { /* Used by process_SUITE (emulator) */ - BIF_RET(erts_debug_processes_bif_info(BIF_P)); + BIF_RET(erts_debug_ptab_list_bif_info(BIF_P, &erts_proc)); } else if (ERTS_IS_ATOM_STR("max_atom_out_cache_index", BIF_ARG_1)) { /* Used by distribution_SUITE (emulator) */ @@ -3392,6 +3346,9 @@ BIF_RETTYPE erts_debug_get_internal_state_1(BIF_ALIST_1) erts_smp_thr_progress_unblock(); BIF_RET(res); } + else if (ERTS_IS_ATOM_STR("mmap", BIF_ARG_1)) { + BIF_RET(erts_mmap_debug_info(BIF_P)); + } } else if (is_tuple(BIF_ARG_1)) { Eterm* tp = tuple_val(BIF_ARG_1); @@ -3421,17 +3378,20 @@ BIF_RETTYPE erts_debug_get_internal_state_1(BIF_ALIST_1) ERTS_SMP_ASSERT_IS_NOT_EXITING(BIF_P); BIF_RET(am_undefined); } - res = make_link_list(BIF_P, p->nlinks, NIL); + res = make_link_list(BIF_P, ERTS_P_LINKS(p), NIL); erts_smp_proc_unlock(p, ERTS_PROC_LOCK_LINK); BIF_RET(res); } else if(is_internal_port(tp[2])) { Eterm res; - Port *p = erts_id2port(tp[2], BIF_P, ERTS_PROC_LOCK_MAIN); + Port *p = erts_id2port_sflgs(tp[2], + BIF_P, + ERTS_PROC_LOCK_MAIN, + ERTS_PORT_SFLGS_INVALID_LOOKUP); if(!p) BIF_RET(am_undefined); - res = make_link_list(BIF_P, p->nlinks, NIL); - erts_smp_port_unlock(p); + res = make_link_list(BIF_P, ERTS_P_LINKS(p), NIL); + erts_port_release(p); BIF_RET(res); } else if(is_node_name_atom(tp[2])) { @@ -3463,7 +3423,7 @@ BIF_RETTYPE erts_debug_get_internal_state_1(BIF_ALIST_1) ERTS_SMP_ASSERT_IS_NOT_EXITING(BIF_P); BIF_RET(am_undefined); } - res = make_monitor_list(BIF_P, p->monitors); + res = make_monitor_list(BIF_P, ERTS_P_MONITORS(p)); erts_smp_proc_unlock(p, ERTS_PROC_LOCK_LINK); BIF_RET(res); } else if(is_node_name_atom(tp[2])) { @@ -3606,7 +3566,7 @@ BIF_RETTYPE erts_debug_set_internal_state_2(BIF_ALIST_2) erts_aint_t prev_on = erts_smp_atomic_xchg_nob(&available_internal_state, on); if (on) { erts_dsprintf_buf_t *dsbufp = erts_create_logger_dsbuf(); - erts_dsprintf(dsbufp, "Process %T ", BIF_P->id); + erts_dsprintf(dsbufp, "Process %T ", BIF_P->common.id); if (erts_is_alive) erts_dsprintf(dsbufp, "on node %T ", erts_this_node->sysname); erts_dsprintf(dsbufp, @@ -3671,13 +3631,12 @@ BIF_RETTYPE erts_debug_set_internal_state_2(BIF_ALIST_2) Uint next; if (term_to_Uint(BIF_ARG_2, &next) != 0) { - Eterm res; + Sint res; if (ERTS_IS_ATOM_STR("next_pid", BIF_ARG_1)) - res = erts_test_next_pid(1, next); - else { - res = erts_test_next_port(1, next); - } + res = erts_ptab_test_next_id(&erts_proc, 1, next); + else + res = erts_ptab_test_next_id(&erts_port, 1, next); if (res < 0) BIF_RET(am_false); BIF_RET(erts_make_integer(res, BIF_P)); @@ -3697,6 +3656,20 @@ BIF_RETTYPE erts_debug_set_internal_state_2(BIF_ALIST_2) BIF_RET(am_true); } } + else if (ERTS_IS_ATOM_STR("gc_state", BIF_ARG_1)) { + /* Used by process_SUITE (emulator) */ + int res, enable; + + switch (BIF_ARG_2) { + case am_true: enable = 1; break; + case am_false: enable = 0; break; + default: BIF_ERROR(BIF_P, BADARG); break; + } + + res = (BIF_P->flags & F_DISABLE_GC) ? am_false : am_true; + erts_set_gc_state(BIF_P, enable); + BIF_RET(res); + } else if (ERTS_IS_ATOM_STR("send_fake_exit_signal", BIF_ARG_1)) { /* Used by signal_SUITE (emulator) */ @@ -3710,9 +3683,8 @@ BIF_RETTYPE erts_debug_set_internal_state_2(BIF_ALIST_2) && is_internal_pid(tp[2])) { int xres; ErtsProcLocks rp_locks = ERTS_PROC_LOCKS_XSIG_SEND; - Process *rp = erts_pid2proc_opt(BIF_P, ERTS_PROC_LOCK_MAIN, - tp[2], rp_locks, - ERTS_P2P_FLG_SMP_INC_REFC); + Process *rp = erts_pid2proc(BIF_P, ERTS_PROC_LOCK_MAIN, + tp[2], rp_locks); if (!rp) { DECL_AM(dead); BIF_RET(AM_dead); @@ -3738,7 +3710,6 @@ BIF_RETTYPE erts_debug_set_internal_state_2(BIF_ALIST_2) rp_locks &= ~ERTS_PROC_LOCK_MAIN; #endif erts_smp_proc_unlock(rp, rp_locks); - erts_smp_proc_dec_refc(rp); if (xres > 1) { DECL_AM(message); BIF_RET(AM_message); @@ -3885,16 +3856,19 @@ static Eterm lcnt_build_lock_stats_term(Eterm **hpp, Uint *szp, erts_lcnt_lock_s Uint tries = 0, colls = 0; unsigned long timer_s = 0, timer_ns = 0, timer_n = 0; unsigned int line = 0; + unsigned int i; Eterm af, uil; Eterm uit, uic; Eterm uits, uitns, uitn; Eterm tt, tstat, tloc, t; + Eterm thist, vhist[ERTS_LCNT_HISTOGRAM_SLOT_SIZE]; /* term: - * [{{file, line}, {tries, colls, {seconds, nanoseconds, n_blocks}}}] + * [{{file, line}, {tries, colls, {seconds, nanoseconds, n_blocks}}, + * { .. histogram .. }] */ - + tries = (Uint) ethr_atomic_read(&stats->tries); colls = (Uint) ethr_atomic_read(&stats->colls); @@ -3903,23 +3877,27 @@ static Eterm lcnt_build_lock_stats_term(Eterm **hpp, Uint *szp, erts_lcnt_lock_s timer_ns = stats->timer.ns; timer_n = stats->timer_n; - af = am_atom_put(stats->file, strlen(stats->file)); + af = erts_atom_put((byte *)stats->file, strlen(stats->file), ERTS_ATOM_ENC_LATIN1, 1); uil = erts_bld_uint( hpp, szp, line); tloc = erts_bld_tuple(hpp, szp, 2, af, uil); - uit = erts_bld_uint( hpp, szp, tries); - uic = erts_bld_uint( hpp, szp, colls); - + uit = erts_bld_uint( hpp, szp, tries); + uic = erts_bld_uint( hpp, szp, colls); + uits = erts_bld_uint( hpp, szp, timer_s); uitns = erts_bld_uint( hpp, szp, timer_ns); uitn = erts_bld_uint( hpp, szp, timer_n); tt = erts_bld_tuple(hpp, szp, 3, uits, uitns, uitn); tstat = erts_bld_tuple(hpp, szp, 3, uit, uic, tt); - - t = erts_bld_tuple(hpp, szp, 2, tloc, tstat); - - res = erts_bld_cons( hpp, szp, t, res); + + for(i = 0; i < ERTS_LCNT_HISTOGRAM_SLOT_SIZE; i++) { + vhist[i] = erts_bld_uint(hpp, szp, stats->hist.ns[i]); + } + thist = erts_bld_tuplev(hpp, szp, ERTS_LCNT_HISTOGRAM_SLOT_SIZE, vhist); + + t = erts_bld_tuple(hpp, szp, 3, tloc, tstat, thist); + res = erts_bld_cons( hpp, szp, t, res); return res; } @@ -3940,33 +3918,32 @@ static Eterm lcnt_build_lock_term(Eterm **hpp, Uint *szp, erts_lcnt_lock_t *lock ASSERT(ltype); - type = am_atom_put(ltype, strlen(ltype)); - name = am_atom_put(lock->name, strlen(lock->name)); + type = erts_atom_put((byte *)ltype, strlen(ltype), ERTS_ATOM_ENC_LATIN1, 1); + name = erts_atom_put((byte *)lock->name, strlen(lock->name), ERTS_ATOM_ENC_LATIN1, 1); if (lock->flag & ERTS_LCNT_LT_ALLOC) { /* use allocator types names as id's for allocator locks */ ltype = (char *) ERTS_ALC_A2AD(signed_val(lock->id)); - id = am_atom_put(ltype, strlen(ltype)); + id = erts_atom_put((byte *)ltype, strlen(ltype), ERTS_ATOM_ENC_LATIN1, 1); } else if (lock->flag & ERTS_LCNT_LT_PROCLOCK) { /* use registered names as id's for process locks if available */ - proc = erts_pid2proc_unlocked(lock->id); - if (proc && proc->reg) { - id = proc->reg->name; + proc = erts_proc_lookup(lock->id); + if (proc && proc->common.u.alive.reg) { + id = proc->common.u.alive.reg->name; } else { /* otherwise use process id */ id = lock->id; } } else { - id = lock->id; + id = lock->id; } - + for (i = 0; i < lock->n_stats; i++) { stats = lcnt_build_lock_stats_term(hpp, szp, &(lock->stats[i]), stats); } - - t = erts_bld_tuple(hpp, szp, 4, name, id, type, stats); - - res = erts_bld_cons( hpp, szp, t, res); + + t = erts_bld_tuple(hpp, szp, 4, name, id, type, stats); + res = erts_bld_cons( hpp, szp, t, res); return res; } @@ -3986,12 +3963,12 @@ static Eterm lcnt_build_result_term(Eterm **hpp, Uint *szp, erts_lcnt_data_t *da dtns = erts_bld_uint( hpp, szp, data->duration.ns); tdt = erts_bld_tuple(hpp, szp, 2, dts, dtns); - adur = am_atom_put(str_duration, strlen(str_duration)); + adur = erts_atom_put((byte *)str_duration, strlen(str_duration), ERTS_ATOM_ENC_LATIN1, 1); tdur = erts_bld_tuple(hpp, szp, 2, adur, tdt); /* lock tuple */ - aloc = am_atom_put(str_locks, strlen(str_locks)); + aloc = erts_atom_put((byte *)str_locks, strlen(str_locks), ERTS_ATOM_ENC_LATIN1, 1); for (lock = data->current_locks->head; lock != NULL ; lock = lock->next ) { lloc = lcnt_build_lock_term(hpp, szp, lock, lloc); @@ -4127,14 +4104,14 @@ BIF_RETTYPE erts_debug_lock_counters_1(BIF_ALIST_1) static void os_info_init(void) { - Eterm type = am_atom_put(os_type, strlen(os_type)); + Eterm type = erts_atom_put((byte *) os_type, strlen(os_type), ERTS_ATOM_ENC_LATIN1, 1); Eterm flav; int major, minor, build; char* buf = erts_alloc(ERTS_ALC_T_TMP, 1024); /* More than enough */ Eterm* hp; os_flavor(buf, 1024); - flav = am_atom_put(buf, strlen(buf)); + flav = erts_atom_put((byte *) buf, strlen(buf), ERTS_ATOM_ENC_LATIN1, 1); erts_free(ERTS_ALC_T_TMP, (void *) buf); hp = erts_alloc(ERTS_ALC_T_LL_TEMP_TERM, (3+4)*sizeof(Eterm)); os_type_tuple = TUPLE2(hp, type, flav); @@ -4156,6 +4133,8 @@ erts_bif_info_init(void) alloc_sizes_trap = erts_export_put(am_erlang, am_alloc_sizes, 1); gather_sched_wall_time_res_trap = erts_export_put(am_erlang, am_gather_sched_wall_time_result, 1); + gather_gc_info_res_trap + = erts_export_put(am_erlang, am_gather_gc_info_result, 1); process_info_init(); os_info_init(); } diff --git a/erts/emulator/beam/erl_bif_lists.c b/erts/emulator/beam/erl_bif_lists.c index 1805366cfe..820ed2385d 100644 --- a/erts/emulator/beam/erl_bif_lists.c +++ b/erts/emulator/beam/erl_bif_lists.c @@ -43,7 +43,7 @@ static BIF_RETTYPE append(Process* p, Eterm A, Eterm B) Eterm* hp; int i; - if ((i = list_length(A)) < 0) { + if ((i = erts_list_length(A)) < 0) { BIF_ERROR(p, BADARG); } if (i == 0) { @@ -102,10 +102,10 @@ static Eterm subtract(Process* p, Eterm A, Eterm B) int n; int m; - if ((n = list_length(A)) < 0) { + if ((n = erts_list_length(A)) < 0) { BIF_ERROR(p, BADARG); } - if ((m = list_length(B)) < 0) { + if ((m = erts_list_length(B)) < 0) { BIF_ERROR(p, BADARG); } diff --git a/erts/emulator/beam/erl_bif_op.c b/erts/emulator/beam/erl_bif_op.c index 13f8b1f63c..37dd6457db 100644 --- a/erts/emulator/beam/erl_bif_op.c +++ b/erts/emulator/beam/erl_bif_op.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 1999-2010. All Rights Reserved. + * Copyright Ericsson AB 1999-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -36,6 +36,7 @@ #include "dist.h" #include "erl_version.h" #include "erl_binary.h" +#include "erl_map.h" BIF_RETTYPE and_2(BIF_ALIST_2) { @@ -261,11 +262,6 @@ Eterm erl_is_function(Process* p, Eterm arg1, Eterm arg2) if (exp->code[2] == (Uint) arity) { BIF_RET(am_true); } - } else if (is_tuple(arg1)) { - Eterm* tp = tuple_val(arg1); - if (tp[0] == make_arityval(2) && is_atom(tp[1]) && is_atom(tp[2])) { - BIF_RET(am_true); - } } BIF_RET(am_false); } @@ -326,7 +322,10 @@ BIF_RETTYPE is_record_3(BIF_ALIST_3) BIF_RET(am_false); } - - - - +BIF_RETTYPE is_map_1(BIF_ALIST_1) +{ + if (is_map(BIF_ARG_1)) { + BIF_RET(am_true); + } + BIF_RET(am_false); +} diff --git a/erts/emulator/beam/erl_bif_os.c b/erts/emulator/beam/erl_bif_os.c index 831e05493a..e07c622928 100644 --- a/erts/emulator/beam/erl_bif_os.c +++ b/erts/emulator/beam/erl_bif_os.c @@ -58,7 +58,7 @@ BIF_RETTYPE os_getpid_0(BIF_ALIST_0) char pid_string[21]; /* enough for a 64 bit number */ int n; Eterm* hp; - sys_get_pid(pid_string); /* In sys.c */ + sys_get_pid(pid_string, sizeof(pid_string)); /* In sys.c */ n = sys_strlen(pid_string); hp = HAlloc(BIF_P, n*2); BIF_RET(buf_to_intlist(&hp, pid_string, n, NIL)); @@ -180,3 +180,25 @@ BIF_RETTYPE os_putenv_2(BIF_ALIST_2) BIF_RET(am_true); } +BIF_RETTYPE os_unsetenv_1(BIF_ALIST_1) +{ + char *key_buf; + char buf[STATIC_BUF_SIZE]; + + key_buf = erts_convert_filename_to_native(BIF_ARG_1,buf,STATIC_BUF_SIZE, + ERTS_ALC_T_TMP,0,0,NULL); + if (!key_buf) { + BIF_ERROR(BIF_P, BADARG); + } + + if (erts_sys_unsetenv(key_buf)) { + if (key_buf != buf) { + erts_free(ERTS_ALC_T_TMP, key_buf); + } + BIF_ERROR(BIF_P, BADARG); + } + if (key_buf != buf) { + erts_free(ERTS_ALC_T_TMP, key_buf); + } + BIF_RET(am_true); +} diff --git a/erts/emulator/beam/erl_bif_port.c b/erts/emulator/beam/erl_bif_port.c index f9009166c0..afb33c1cdb 100644 --- a/erts/emulator/beam/erl_bif_port.c +++ b/erts/emulator/beam/erl_bif_port.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 2001-2012. All Rights Reserved. + * Copyright Ericsson AB 2001-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -42,577 +42,556 @@ #include "erl_bits.h" #include "dtrace-wrapper.h" -static int open_port(Process* p, Eterm name, Eterm settings, int *err_nump); +static Port *open_port(Process* p, Eterm name, Eterm settings, int *err_typep, int *err_nump); static byte* convert_environment(Process* p, Eterm env); static char **convert_args(Eterm); static void free_args(char **); char *erts_default_arg0 = "default"; -static BIF_RETTYPE -port_call(Process* p, Eterm arg1, Eterm arg2, Eterm arg3); - BIF_RETTYPE open_port_2(BIF_ALIST_2) { - int port_num; - Eterm port_val; + Port *port; + Eterm port_id; char *str; - int err_num; + int err_type, err_num; - if ((port_num = open_port(BIF_P, BIF_ARG_1, BIF_ARG_2, &err_num)) < 0) { - if (port_num == -3) { + port = open_port(BIF_P, BIF_ARG_1, BIF_ARG_2, &err_type, &err_num); + if (!port) { + if (err_type == -3) { ASSERT(err_num == BADARG || err_num == SYSTEM_LIMIT); BIF_ERROR(BIF_P, err_num); - } else if (port_num == -2) { + } else if (err_type == -2) { str = erl_errno_id(err_num); } else { str = "einval"; } - BIF_P->fvalue = am_atom_put(str, strlen(str)); + BIF_P->fvalue = erts_atom_put((byte *) str, strlen(str), ERTS_ATOM_ENC_LATIN1, 1); BIF_ERROR(BIF_P, EXC_ERROR); } erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCK_LINK); - port_val = erts_port[port_num].id; - erts_add_link(&(erts_port[port_num].nlinks), LINK_PID, BIF_P->id); - erts_add_link(&(BIF_P->nlinks), LINK_PID, port_val); + port_id = port->common.id; + erts_add_link(&ERTS_P_LINKS(port), LINK_PID, BIF_P->common.id); + erts_add_link(&ERTS_P_LINKS(BIF_P), LINK_PID, port_id); erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCK_LINK); - erts_port_release(&erts_port[port_num]); + erts_port_release(port); - BIF_RET(port_val); + BIF_RET(port_id); } -/**************************************************************************** - - PORT BIFS: - - port_command/2 -- replace Port ! {..., {command, Data}} - port_command(Port, Data) -> true - when port(Port), io-list(Data) - - port_control/3 -- new port_control(Port, Ctl, Data) -> Reply - port_control(Port, Ctl, Data) -> Reply - where integer(Ctl), io-list(Data), io-list(Reply) - - port_close/1 -- replace Port ! {..., close} - port_close(Port) -> true - when port(Port) - - port_connect/2 -- replace Port ! {..., {connect, Pid}} - port_connect(Port, Pid) - when port(Port), pid(Pid) - - ***************************************************************************/ - -static Port* -id_or_name2port(Process *c_p, Eterm id) +static ERTS_INLINE Port * +lookup_port(Process *c_p, Eterm id_or_name, Uint32 invalid_flags) { - Port *port; - if (is_not_atom(id)) - port = erts_id2port(id, c_p, ERTS_PROC_LOCK_MAIN); + /* TODO: Implement nicer lookup in register... */ + Eterm id; + if (is_atom(id_or_name)) + id = erts_whereis_name_to_id(c_p, id_or_name); else - erts_whereis_name(c_p, ERTS_PROC_LOCK_MAIN, id, NULL, 0, 0, &port); - return port; + id = id_or_name; + return erts_port_lookup(id, invalid_flags); } -#define ERTS_PORT_COMMAND_FLAG_FORCE (((Uint32) 1) << 0) -#define ERTS_PORT_COMMAND_FLAG_NOSUSPEND (((Uint32) 1) << 1) +static ERTS_INLINE Port * +sig_lookup_port(Process *c_p, Eterm id_or_name) +{ + return lookup_port(c_p, id_or_name, ERTS_PORT_SFLGS_INVALID_DRIVER_LOOKUP); +} -static BIF_RETTYPE -do_port_command(Process *BIF_P, Eterm arg1, Eterm arg2, Eterm arg3, - Uint32 flags) +static ERTS_INLINE Port * +data_lookup_port(Process *c_p, Eterm id_or_name) { - BIF_RETTYPE res; - Port *p; + return lookup_port(c_p, id_or_name, ERTS_PORT_SFLGS_INVALID_LOOKUP); +} - /* Trace sched out before lock check wait */ - if (IS_TRACED_FL(BIF_P, F_TRACE_SCHED_PROCS)) { - trace_virtual_sched(BIF_P, am_out); - } - - if (erts_system_profile_flags.runnable_procs && erts_system_profile_flags.exclusive) { - profile_runnable_proc(BIF_P, am_inactive); - } +/* + * erts_internal:port_command/3 is used by the + * erlang:port_command/2 and erlang:port_command/3 + * BIFs. + */ - p = id_or_name2port(BIF_P, arg1); - if (!p) { - if (IS_TRACED_FL(BIF_P, F_TRACE_SCHED_PROCS)) { - trace_virtual_sched(BIF_P, am_in); +BIF_RETTYPE erts_internal_port_command_3(BIF_ALIST_3) +{ + BIF_RETTYPE res; + Port *prt; + int flags = 0; + Eterm ref; + + if (is_not_nil(BIF_ARG_3)) { + Eterm l = BIF_ARG_3; + while (is_list(l)) { + Eterm* cons = list_val(l); + Eterm car = CAR(cons); + if (car == am_force) + flags |= ERTS_PORT_SIG_FLG_FORCE; + else if (car == am_nosuspend) + flags |= ERTS_PORT_SIG_FLG_NOSUSPEND; + else + BIF_RET(am_badarg); + l = CDR(cons); } - if (erts_system_profile_flags.runnable_procs && erts_system_profile_flags.exclusive) { - profile_runnable_proc(BIF_P, am_active); - } - BIF_ERROR(BIF_P, BADARG); + if (!is_nil(l)) + BIF_RET(am_badarg); } - - /* Trace port in, id_or_name2port causes wait */ - if (IS_TRACED_FL(p, F_TRACE_SCHED_PORTS)) { - trace_sched_ports_where(p, am_in, am_command); - } - if (erts_system_profile_flags.runnable_ports && !erts_port_is_scheduled(p)) { - profile_runnable_port(p, am_active); + prt = sig_lookup_port(BIF_P, BIF_ARG_1); + if (!prt) + BIF_RET(am_badarg); + + if (flags & ERTS_PORT_SIG_FLG_FORCE) { + if (!(prt->drv_ptr->flags & ERL_DRV_FLAG_SOFT_BUSY)) + BIF_RET(am_notsup); } - ERTS_BIF_PREP_RET(res, am_true); +#ifdef DEBUG + ref = NIL; +#endif - if ((flags & ERTS_PORT_COMMAND_FLAG_FORCE) - && !(p->drv_ptr->flags & ERL_DRV_FLAG_SOFT_BUSY)) { - ERTS_BIF_PREP_ERROR(res, BIF_P, EXC_NOTSUP); - } - else if (!(flags & ERTS_PORT_COMMAND_FLAG_FORCE) - && p->status & ERTS_PORT_SFLG_PORT_BUSY) { - if (flags & ERTS_PORT_COMMAND_FLAG_NOSUSPEND) { + switch (erts_port_output(BIF_P, flags, prt, prt->common.id, BIF_ARG_2, &ref)) { + case ERTS_PORT_OP_CALLER_EXIT: + case ERTS_PORT_OP_BADARG: + case ERTS_PORT_OP_DROPPED: + ERTS_BIF_PREP_RET(res, am_badarg); + break; + case ERTS_PORT_OP_BUSY: + ASSERT(!(flags & ERTS_PORT_SIG_FLG_FORCE)); + if (flags & ERTS_PORT_SIG_FLG_NOSUSPEND) ERTS_BIF_PREP_RET(res, am_false); - } else { - erts_suspend(BIF_P, ERTS_PROC_LOCK_MAIN, p); - if (erts_system_monitor_flags.busy_port) { - monitor_generic(BIF_P, am_busy_port, p->id); - } - ERTS_BIF_PREP_YIELD3(res, bif_export[BIF_port_command_3], BIF_P, - arg1, arg2, arg3); - } - } else { - int wres; - erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCK_MAIN); - ERTS_SMP_CHK_NO_PROC_LOCKS; - wres = erts_write_to_port(BIF_P->id, p, arg2); - erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCK_MAIN); - if (wres != 0) { - ERTS_BIF_PREP_ERROR(res, BIF_P, BADARG); + erts_suspend(BIF_P, ERTS_PROC_LOCK_MAIN, prt); + ERTS_BIF_PREP_YIELD3(res, bif_export[BIF_erts_internal_port_command_3], + BIF_P, BIF_ARG_1, BIF_ARG_2, BIF_ARG_3); } - } - - if (IS_TRACED_FL(p, F_TRACE_SCHED_PORTS)) { - trace_sched_ports_where(p, am_out, am_command); - } - if (erts_system_profile_flags.runnable_ports && !erts_port_is_scheduled(p)) { - profile_runnable_port(p, am_inactive); + break; + case ERTS_PORT_OP_BUSY_SCHEDULED: + ASSERT(!(flags & ERTS_PORT_SIG_FLG_FORCE)); + /* Fall through... */ + case ERTS_PORT_OP_SCHEDULED: + ASSERT(is_internal_ref(ref)); + ERTS_BIF_PREP_RET(res, ref); + break; + case ERTS_PORT_OP_DONE: + ERTS_BIF_PREP_RET(res, am_true); + break; + default: + ERTS_INTERNAL_ERROR("Unexpected erts_port_output() result"); + break; } - erts_port_release(p); - /* Trace sched in after port release */ - if (IS_TRACED_FL(BIF_P, F_TRACE_SCHED_PROCS)) { - trace_virtual_sched(BIF_P, am_in); - } - if (erts_system_profile_flags.runnable_procs && erts_system_profile_flags.exclusive) { - profile_runnable_proc(BIF_P, am_active); - } - if (ERTS_PROC_IS_EXITING(BIF_P)) { KILL_CATCHES(BIF_P); /* Must exit */ ERTS_BIF_PREP_ERROR(res, BIF_P, EXC_ERROR); } + return res; } -BIF_RETTYPE port_command_2(BIF_ALIST_2) +BIF_RETTYPE erts_internal_port_call_3(BIF_ALIST_3) { - return do_port_command(BIF_P, BIF_ARG_1, BIF_ARG_2, NIL, 0); + Port* prt; + Eterm retval; + Uint uint_op; + unsigned int op; + erts_aint32_t state; + + prt = sig_lookup_port(BIF_P, BIF_ARG_1); + if (!prt) + BIF_RET(am_badarg); + + if (!term_to_Uint(BIF_ARG_2, &uint_op)) + BIF_RET(am_badarg); + + if (uint_op > (Uint) UINT_MAX) + BIF_RET(am_badarg); + + op = (unsigned int) uint_op; + + switch (erts_port_call(BIF_P, prt, op, BIF_ARG_3, &retval)) { + case ERTS_PORT_OP_CALLER_EXIT: + case ERTS_PORT_OP_DROPPED: + case ERTS_PORT_OP_BADARG: + retval = am_badarg; + break; + case ERTS_PORT_OP_SCHEDULED: + ASSERT(is_internal_ref(retval)); + break; + case ERTS_PORT_OP_DONE: + ASSERT(is_not_internal_ref(retval)); + break; + default: + ERTS_INTERNAL_ERROR("Unexpected erts_port_call() result"); + retval = am_internal_error; + break; + } + + state = erts_smp_atomic32_read_acqb(&BIF_P->state); + if (state & (ERTS_PSFLG_EXITING|ERTS_PSFLG_PENDING_EXIT)) { +#ifdef ERTS_SMP + if (state & ERTS_PSFLG_PENDING_EXIT) + erts_handle_pending_exit(BIF_P, ERTS_PROC_LOCK_MAIN); +#endif + ERTS_BIF_EXITED(BIF_P); + } + + BIF_RET(retval); } -BIF_RETTYPE port_command_3(BIF_ALIST_3) +BIF_RETTYPE erts_internal_port_control_3(BIF_ALIST_3) { - Eterm l = BIF_ARG_3; - Uint32 flags = 0; - while (is_list(l)) { - Eterm* cons = list_val(l); - Eterm car = CAR(cons); - if (car == am_force) { - flags |= ERTS_PORT_COMMAND_FLAG_FORCE; - } else if (car == am_nosuspend) { - flags |= ERTS_PORT_COMMAND_FLAG_NOSUSPEND; - } else { - BIF_ERROR(BIF_P, BADARG); - } - l = CDR(cons); + Port* prt; + Eterm retval; + Uint uint_op; + unsigned int op; + erts_aint32_t state; + + prt = sig_lookup_port(BIF_P, BIF_ARG_1); + if (!prt) + BIF_RET(am_badarg); + + if (!term_to_Uint(BIF_ARG_2, &uint_op)) + BIF_RET(am_badarg); + + if (uint_op > (Uint) UINT_MAX) + BIF_RET(am_badarg); + + op = (unsigned int) uint_op; + + switch (erts_port_control(BIF_P, prt, op, BIF_ARG_3, &retval)) { + case ERTS_PORT_OP_CALLER_EXIT: + case ERTS_PORT_OP_BADARG: + case ERTS_PORT_OP_DROPPED: + retval = am_badarg; + break; + case ERTS_PORT_OP_SCHEDULED: + ASSERT(is_internal_ref(retval)); + break; + case ERTS_PORT_OP_DONE: + ASSERT(is_not_internal_ref(retval)); + break; + default: + ERTS_INTERNAL_ERROR("Unexpected erts_port_control() result"); + retval = am_internal_error; + break; } - if(!is_nil(l)) { - BIF_ERROR(BIF_P, BADARG); + + state = erts_smp_atomic32_read_acqb(&BIF_P->state); + if (state & (ERTS_PSFLG_EXITING|ERTS_PSFLG_PENDING_EXIT)) { +#ifdef ERTS_SMP + if (state & ERTS_PSFLG_PENDING_EXIT) + erts_handle_pending_exit(BIF_P, ERTS_PROC_LOCK_MAIN); +#endif + ERTS_BIF_EXITED(BIF_P); } - return do_port_command(BIF_P, BIF_ARG_1, BIF_ARG_2, BIF_ARG_3, flags); -} -BIF_RETTYPE port_call_2(BIF_ALIST_2) -{ - return port_call(BIF_P,BIF_ARG_1, make_small(0), BIF_ARG_2); + BIF_RET(retval); } -BIF_RETTYPE port_call_3(BIF_ALIST_3) +/* + * erts_internal:port_close/1 is used by the + * erlang:port_close/1 BIF. + */ +BIF_RETTYPE erts_internal_port_close_1(BIF_ALIST_1) { - return port_call(BIF_P, BIF_ARG_1, BIF_ARG_2, BIF_ARG_3); -} + Eterm ref; + Port *prt; -static BIF_RETTYPE -port_call(Process* c_p, Eterm arg1, Eterm arg2, Eterm arg3) -{ - Uint op; - Port *p; - Uint size; - byte *bytes; - byte *endp; - ErlDrvSizeT real_size; - erts_driver_t *drv; - byte port_input[256]; /* Default input buffer to encode in */ - byte port_result[256]; /* Buffer for result from port. */ - byte* port_resp; /* Pointer to result buffer. */ - char *prc; - ErlDrvSSizeT ret; - Eterm res; - Sint result_size; - Eterm *hp; - Eterm *hp_end; - unsigned ret_flags = 0U; - int fpe_was_unmasked; - - bytes = &port_input[0]; - port_resp = port_result; - /* trace of port scheduling with virtual process descheduling - * lock wait - */ - if (IS_TRACED_FL(c_p, F_TRACE_SCHED_PROCS)) { - trace_virtual_sched(c_p, am_out); - } +#ifdef DEBUG + ref = NIL; +#endif - if (erts_system_profile_flags.runnable_procs && erts_system_profile_flags.exclusive) { - profile_runnable_proc(c_p, am_inactive); + prt = sig_lookup_port(BIF_P, BIF_ARG_1); + if (!prt) + BIF_RET(am_badarg); + + + switch (erts_port_exit(BIF_P, 0, prt, prt->common.id, am_normal, &ref)) { + case ERTS_PORT_OP_CALLER_EXIT: + case ERTS_PORT_OP_BADARG: + case ERTS_PORT_OP_DROPPED: + BIF_RET(am_badarg); + case ERTS_PORT_OP_SCHEDULED: + ASSERT(is_internal_ref(ref)); + BIF_RET(ref); + case ERTS_PORT_OP_DONE: + BIF_RET(am_true); + default: + ERTS_INTERNAL_ERROR("Unexpected erts_port_exit() result"); + BIF_RET(am_internal_error); } +} - p = id_or_name2port(c_p, arg1); - if (!p) { - error: - if (port_resp != port_result && - !(ret_flags & DRIVER_CALL_KEEP_BUFFER)) { - driver_free(port_resp); - } - if (bytes != &port_input[0]) - erts_free(ERTS_ALC_T_PORT_CALL_BUF, bytes); - /* Need to virtual schedule in the process if there - * was an error. - */ - if (IS_TRACED_FL(c_p, F_TRACE_SCHED_PROCS)) { - trace_virtual_sched(c_p, am_in); - } +/* + * erts_internal:port_connect/2 is used by the + * erlang:port_connect/2 BIF. + */ +BIF_RETTYPE erts_internal_port_connect_2(BIF_ALIST_2) +{ + Eterm ref; + Port* prt; - if (erts_system_profile_flags.runnable_procs && erts_system_profile_flags.exclusive) { - profile_runnable_proc(c_p, am_active); - } + prt = sig_lookup_port(BIF_P, BIF_ARG_1); + if (!prt) + BIF_RET(am_badarg); - if (p) - erts_port_release(p); -#ifdef ERTS_SMP - ERTS_SMP_BIF_CHK_PENDING_EXIT(c_p, ERTS_PROC_LOCK_MAIN); -#else - ERTS_BIF_CHK_EXITED(c_p); +#ifdef DEBUG + ref = NIL; #endif - BIF_ERROR(c_p, BADARG); - } - if ((drv = p->drv_ptr) == NULL) { - goto error; - } - if (drv->call == NULL) { - goto error; + switch (erts_port_connect(BIF_P, 0, prt, prt->common.id, BIF_ARG_2, &ref)) { + case ERTS_PORT_OP_CALLER_EXIT: + case ERTS_PORT_OP_BADARG: + case ERTS_PORT_OP_DROPPED: + BIF_RET(am_badarg); + case ERTS_PORT_OP_SCHEDULED: + ASSERT(is_internal_ref(ref)); + BIF_RET(ref); + break; + case ERTS_PORT_OP_DONE: + BIF_RET(am_true); + break; + default: + ERTS_INTERNAL_ERROR("Unexpected erts_port_connect() result"); + BIF_RET(am_internal_error); } - if (!term_to_Uint(arg2, &op)) { - goto error; +} + +BIF_RETTYPE erts_internal_port_info_1(BIF_ALIST_1) +{ + Eterm retval; + Port* prt; + + if (is_internal_port(BIF_ARG_1) || is_atom(BIF_ARG_1)) { + prt = sig_lookup_port(BIF_P, BIF_ARG_1); + if (!prt) + BIF_RET(am_undefined); } - p->caller = c_p->id; - - /* Lock taken, virtual schedule of port */ - if (IS_TRACED_FL(p, F_TRACE_SCHED_PORTS)) { - trace_sched_ports_where(p, am_in, am_call); + else if (is_external_port(BIF_ARG_1)) { + if (external_port_dist_entry(BIF_ARG_1) == erts_this_dist_entry) + BIF_RET(am_undefined); + else + BIF_RET(am_badarg); } - - if (erts_system_profile_flags.runnable_ports && !erts_port_is_scheduled(p)) { - profile_runnable_port(p, am_active); + else { + BIF_RET(am_badarg); + } + + switch (erts_port_info(BIF_P, prt, THE_NON_VALUE, &retval)) { + case ERTS_PORT_OP_CALLER_EXIT: + case ERTS_PORT_OP_BADARG: + BIF_RET(am_badarg); + case ERTS_PORT_OP_DROPPED: + BIF_RET(am_undefined); + case ERTS_PORT_OP_SCHEDULED: + ASSERT(is_internal_ref(retval)); + BIF_RET(retval); + case ERTS_PORT_OP_DONE: + ASSERT(is_not_internal_ref(retval)); + BIF_RET(retval); + default: + ERTS_INTERNAL_ERROR("Unexpected erts_port_info() result"); + BIF_RET(am_internal_error); } - size = erts_encode_ext_size(arg3); - if (size > sizeof(port_input)) - bytes = erts_alloc(ERTS_ALC_T_PORT_CALL_BUF, size); +} - endp = bytes; - erts_encode_ext(arg3, &endp); - real_size = endp - bytes; - if (real_size > size) { - erl_exit(1, "%s, line %d: buffer overflow: %d word(s)\n", - __FILE__, __LINE__, endp - (bytes + size)); - } - erts_smp_proc_unlock(c_p, ERTS_PROC_LOCK_MAIN); -#ifdef USE_VM_PROBES - if (DTRACE_ENABLED(driver_call)) { - DTRACE_CHARBUF(process_str, DTRACE_TERM_BUF_SIZE); - DTRACE_CHARBUF(port_str, DTRACE_TERM_BUF_SIZE); +BIF_RETTYPE erts_internal_port_info_2(BIF_ALIST_2) +{ + Eterm retval; + Port* prt; - dtrace_pid_str(p->connected, process_str); - dtrace_port_str(p, port_str); - DTRACE5(driver_call, process_str, port_str, p->name, op, real_size); - } -#endif - prc = (char *) port_resp; - fpe_was_unmasked = erts_block_fpe(); - ret = drv->call((ErlDrvData)p->drv_data, - (unsigned) op, - (char *) bytes, - (int) real_size, - &prc, - (int) sizeof(port_result), - &ret_flags); - erts_unblock_fpe(fpe_was_unmasked); - if (IS_TRACED_FL(p, F_TRACE_SCHED_PORTS)) { - trace_sched_ports_where(p, am_out, am_call); - } - - if (erts_system_profile_flags.runnable_ports && !erts_port_is_scheduled(p)) { - profile_runnable_port(p, am_inactive); - } - - port_resp = (byte *) prc; - p->caller = NIL; - erts_smp_proc_lock(c_p, ERTS_PROC_LOCK_MAIN); -#ifdef HARDDEBUG - { - ErlDrvSizeT z; - printf("real_size = %ld,%d, ret = %ld,%d\r\n", (unsigned long) real_size, - (int) real_size, (unsigned long)ret, (int) ret); - printf("["); - for(z = 0; z < real_size; ++z) { - printf("%d, ",(int) bytes[z]); - } - printf("]\r\n"); - printf("["); - for(z = 0; z < ret; ++z) { - printf("%d, ",(int) port_resp[z]); - } - printf("]\r\n"); + if (is_internal_port(BIF_ARG_1) || is_atom(BIF_ARG_1)) { + prt = sig_lookup_port(BIF_P, BIF_ARG_1); + if (!prt) + BIF_RET(am_undefined); } -#endif - if (ret <= 0 || port_resp[0] != VERSION_MAGIC) { - /* Error or a binary without magic/ with wrong magic */ - goto error; - } - result_size = erts_decode_ext_size(port_resp, ret); - if (result_size < 0) { - goto error; - } - hp = HAlloc(c_p, result_size); - hp_end = hp + result_size; - endp = port_resp; - res = erts_decode_ext(&hp, &MSO(c_p), &endp); - if (res == THE_NON_VALUE) { - goto error; - } - HRelease(c_p, hp_end, hp); - if (port_resp != port_result && !(ret_flags & DRIVER_CALL_KEEP_BUFFER)) { - driver_free(port_resp); - } - if (bytes != &port_input[0]) - erts_free(ERTS_ALC_T_PORT_CALL_BUF, bytes); - if (p) - erts_port_release(p); -#ifdef ERTS_SMP - ERTS_SMP_BIF_CHK_PENDING_EXIT(c_p, ERTS_PROC_LOCK_MAIN); -#else - ERTS_BIF_CHK_EXITED(c_p); -#endif - if (IS_TRACED_FL(c_p, F_TRACE_SCHED_PROCS)) { - trace_virtual_sched(c_p, am_in); + else if (is_external_port(BIF_ARG_1)) { + if (external_port_dist_entry(BIF_ARG_1) == erts_this_dist_entry) + BIF_RET(am_undefined); + else + BIF_RET(am_badarg); } - - if (erts_system_profile_flags.runnable_procs && erts_system_profile_flags.exclusive) { - profile_runnable_proc(c_p, am_active); + else { + BIF_RET(am_badarg); + } + + switch (erts_port_info(BIF_P, prt, BIF_ARG_2, &retval)) { + case ERTS_PORT_OP_CALLER_EXIT: + case ERTS_PORT_OP_BADARG: + BIF_RET(am_badarg); + case ERTS_PORT_OP_DROPPED: + BIF_RET(am_undefined); + case ERTS_PORT_OP_SCHEDULED: + ASSERT(is_internal_ref(retval)); + BIF_RET(retval); + case ERTS_PORT_OP_DONE: + ASSERT(is_not_internal_ref(retval)); + BIF_RET(retval); + default: + ERTS_INTERNAL_ERROR("Unexpected erts_port_info() result"); + BIF_RET(am_internal_error); } - - return res; } - -BIF_RETTYPE port_control_3(BIF_ALIST_3) -{ - Port* p; - Uint op; - Eterm res = THE_NON_VALUE; - - /* Virtual schedule out calling process before lock wait */ - if (IS_TRACED_FL(BIF_P, F_TRACE_SCHED_PROCS)) { - trace_virtual_sched(BIF_P, am_out); - } - if (erts_system_profile_flags.runnable_procs && erts_system_profile_flags.exclusive) { - profile_runnable_proc(BIF_P, am_inactive); - } +/* + * The erlang:port_set_data()/erlang:port_get_data() operations should + * be viewed as operations on a table (inet_db) with data values + * associated with port identifier keys. That is, these operations are + * *not* signals to/from ports. + */ - p = id_or_name2port(BIF_P, BIF_ARG_1); - if (!p) { - /* Schedule the process before exiting */ - if (IS_TRACED_FL(BIF_P, F_TRACE_SCHED_PROCS)) { - trace_virtual_sched(BIF_P, am_in); - } - - if (erts_system_profile_flags.runnable_procs && erts_system_profile_flags.exclusive) { - profile_runnable_proc(BIF_P, am_active); - } - - BIF_ERROR(BIF_P, BADARG); - } +#if (TAG_PRIMARY_IMMED1 & 0x3) == 0 +# error "erlang:port_set_data()/erlang:port_get_data() needs to be rewritten!" +#endif - /* Trace the port for scheduling in */ - if (IS_TRACED_FL(p, F_TRACE_SCHED_PORTS)) { - trace_sched_ports_where(p, am_in, am_control); - } - - if (erts_system_profile_flags.runnable_ports && !erts_port_is_scheduled(p)) { - profile_runnable_port(p, am_active); - } +typedef struct { + ErtsThrPrgrLaterOp later_op; + Uint hsize; + Eterm data; + ErlOffHeap off_heap; + Eterm heap[1]; +} ErtsPortDataHeap; - if (term_to_Uint(BIF_ARG_2, &op)) - res = erts_port_control(BIF_P, p, op, BIF_ARG_3); - - /* Trace the port for scheduling out */ - if (IS_TRACED_FL(p, F_TRACE_SCHED_PORTS)) { - trace_sched_ports_where(p, am_out, am_control); - } +static void +free_port_data_heap(void *vpdhp) +{ + erts_cleanup_offheap(&((ErtsPortDataHeap *) vpdhp)->off_heap); + erts_free(ERTS_ALC_T_PORT_DATA_HEAP, vpdhp); +} - if (erts_system_profile_flags.runnable_ports && !erts_port_is_scheduled(p)) { - profile_runnable_port(p, am_inactive); +static ERTS_INLINE void +cleanup_old_port_data(erts_aint_t data) +{ + if ((data & 0x3) != 0) { + ASSERT(is_immed((Eterm) data)); } - - erts_port_release(p); + else { #ifdef ERTS_SMP - ERTS_SMP_BIF_CHK_PENDING_EXIT(BIF_P, ERTS_PROC_LOCK_MAIN); + ErtsPortDataHeap *pdhp = (ErtsPortDataHeap *) data; + size_t size; + ERTS_SMP_DATA_DEPENDENCY_READ_MEMORY_BARRIER; + size = sizeof(ErtsPortDataHeap) + pdhp->hsize*(sizeof(Eterm) - 1); + erts_schedule_thr_prgr_later_cleanup_op(free_port_data_heap, + (void *) pdhp, + &pdhp->later_op, + size); #else - ERTS_BIF_CHK_EXITED(BIF_P); + free_port_data_heap((void *) data); #endif - - if (IS_TRACED_FL(BIF_P, F_TRACE_SCHED_PROCS)) { - trace_virtual_sched(BIF_P, am_in); } - - if (erts_system_profile_flags.runnable_procs && erts_system_profile_flags.exclusive) { - profile_runnable_proc(BIF_P, am_active); - } - - if (is_non_value(res)) { - BIF_ERROR(BIF_P, BADARG); - } - BIF_RET(res); } -BIF_RETTYPE port_close_1(BIF_ALIST_1) +void +erts_init_port_data(Port *prt) { - Port* p; - erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCK_MAIN); - p = id_or_name2port(NULL, BIF_ARG_1); - if (!p) { - erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCK_MAIN); - BIF_ERROR(BIF_P, BADARG); - } - erts_do_exit_port(p, p->connected, am_normal); - /* if !ERTS_SMP: since we terminate port with reason normal - we SHOULD never get an exit signal ourselves - */ - erts_port_release(p); - erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCK_MAIN); - BIF_RET(am_true); + erts_smp_atomic_init_nob(&prt->data, (erts_aint_t) am_undefined); } -BIF_RETTYPE port_connect_2(BIF_ALIST_2) +void +erts_cleanup_port_data(Port *prt) { - Port* prt; - Process* rp; - Eterm pid = BIF_ARG_2; + ASSERT(erts_atomic32_read_nob(&prt->state) & ERTS_PORT_SFLGS_INVALID_LOOKUP); + cleanup_old_port_data(erts_smp_atomic_read_nob(&prt->data)); + erts_smp_atomic_set_nob(&prt->data, (erts_aint_t) THE_NON_VALUE); +} - if (is_not_internal_pid(pid)) { - error: - BIF_ERROR(BIF_P, BADARG); - } - prt = id_or_name2port(BIF_P, BIF_ARG_1); - if (!prt) { - goto error; - } +Uint +erts_port_data_size(Port *prt) +{ + erts_aint_t data = erts_smp_atomic_read_ddrb(&prt->data); - rp = erts_pid2proc(BIF_P, ERTS_PROC_LOCK_MAIN, - pid, ERTS_PROC_LOCK_LINK); - if (!rp) { - erts_smp_port_unlock(prt); - ERTS_SMP_ASSERT_IS_NOT_EXITING(BIF_P); - goto error; + if ((data & 0x3) != 0) { + ASSERT(is_immed((Eterm) (UWord) data)); + return (Uint) 0; } + else { + ErtsPortDataHeap *pdhp = (ErtsPortDataHeap *) data; + return (Uint) sizeof(ErtsPortDataHeap) + pdhp->hsize*(sizeof(Eterm)-1); + } +} - erts_add_link(&(rp->nlinks), LINK_PID, prt->id); - erts_add_link(&(prt->nlinks), LINK_PID, pid); - - erts_smp_proc_unlock(rp, ERTS_PROC_LOCK_LINK); - - prt->connected = pid; /* internal pid */ - erts_smp_port_unlock(prt); -#ifdef USE_VM_PROBES - if (DTRACE_ENABLED(port_connect)) { - DTRACE_CHARBUF(process_str, DTRACE_TERM_BUF_SIZE); - DTRACE_CHARBUF(port_str, DTRACE_TERM_BUF_SIZE); - DTRACE_CHARBUF(newprocess_str, DTRACE_TERM_BUF_SIZE); +ErlOffHeap * +erts_port_data_offheap(Port *prt) +{ + erts_aint_t data = erts_smp_atomic_read_ddrb(&prt->data); - dtrace_pid_str(prt->connected, process_str); - erts_snprintf(port_str, sizeof(port_str), "%T", prt->id); - dtrace_proc_str(rp, newprocess_str); - DTRACE4(port_connect, process_str, port_str, prt->name, newprocess_str); + if ((data & 0x3) != 0) { + ASSERT(is_immed((Eterm) (UWord) data)); + return NULL; + } + else { + ErtsPortDataHeap *pdhp = (ErtsPortDataHeap *) data; + return &pdhp->off_heap; } -#endif - BIF_RET(am_true); } BIF_RETTYPE port_set_data_2(BIF_ALIST_2) { + /* + * This is not a signal. See comment above. + */ + erts_aint_t data; Port* prt; - Eterm portid = BIF_ARG_1; - Eterm data = BIF_ARG_2; - - prt = id_or_name2port(BIF_P, portid); - if (!prt) { - BIF_ERROR(BIF_P, BADARG); - } - if (prt->bp != NULL) { - free_message_buffer(prt->bp); - prt->bp = NULL; - } - if (IS_CONST(data)) { - prt->data = data; - } else { - Uint size; - ErlHeapFragment* bp; - Eterm* hp; - - size = size_object(data); - prt->bp = bp = new_message_buffer(size); - hp = bp->mem; - prt->data = copy_struct(data, size, &hp, &bp->off_heap); - } - erts_smp_port_unlock(prt); + + prt = data_lookup_port(BIF_P, BIF_ARG_1); + if (!prt) + BIF_ERROR(BIF_P, BADARG); + + if (is_immed(BIF_ARG_2)) { + data = (erts_aint_t) BIF_ARG_2; + ASSERT((data & 0x3) != 0); + } + else { + ErtsPortDataHeap *pdhp; + Uint hsize; + Eterm *hp; + + hsize = size_object(BIF_ARG_2); + pdhp = erts_alloc(ERTS_ALC_T_PORT_DATA_HEAP, + sizeof(ErtsPortDataHeap) + hsize*(sizeof(Eterm)-1)); + hp = &pdhp->heap[0]; + pdhp->off_heap.first = NULL; + pdhp->off_heap.overhead = 0; + pdhp->data = copy_struct(BIF_ARG_2, hsize, &hp, &pdhp->off_heap); + data = (erts_aint_t) pdhp; + ASSERT((data & 0x3) == 0); + } + + data = erts_smp_atomic_xchg_wb(&prt->data, data); + + cleanup_old_port_data(data); + BIF_RET(am_true); } BIF_RETTYPE port_get_data_1(BIF_ALIST_1) { - BIF_RETTYPE res; + /* + * This is not a signal. See comment above. + */ + Eterm res; + erts_aint_t data; Port* prt; - Eterm portid = BIF_ARG_1; - prt = id_or_name2port(BIF_P, portid); - if (!prt) { - BIF_ERROR(BIF_P, BADARG); + prt = data_lookup_port(BIF_P, BIF_ARG_1); + if (!prt) + BIF_ERROR(BIF_P, BADARG); + + data = erts_smp_atomic_read_ddrb(&prt->data); + + if ((data & 0x3) != 0) { + res = (Eterm) (UWord) data; + ASSERT(is_immed(res)); } - if (prt->bp == NULL) { /* MUST be CONST! */ - res = prt->data; - } else { - Eterm* hp = HAlloc(BIF_P, prt->bp->used_size); - res = copy_struct(prt->data, prt->bp->used_size, &hp, &MSO(BIF_P)); + else { + ErtsPortDataHeap *pdhp = (ErtsPortDataHeap *) data; + Eterm *hp = HAlloc(BIF_P, pdhp->hsize); + res = copy_struct(pdhp->data, pdhp->hsize, &hp, &MSO(BIF_P)); } - erts_smp_port_unlock(prt); + BIF_RET(res); } @@ -625,11 +604,10 @@ BIF_RETTYPE port_get_data_1(BIF_ALIST_1) * either BADARG or SYSTEM_LIMIT). */ -static int -open_port(Process* p, Eterm name, Eterm settings, int *err_nump) +static Port * +open_port(Process* p, Eterm name, Eterm settings, int *err_typep, int *err_nump) { -#define OPEN_PORT_ERROR(VAL) do { port_num = (VAL); goto do_return; } while (0) - int i, port_num; + int i; Eterm option; Uint arity; Eterm* tp; @@ -637,11 +615,11 @@ open_port(Process* p, Eterm name, Eterm settings, int *err_nump) erts_driver_t* driver; char* name_buf = NULL; SysDriverOpts opts; - int binary_io; - int soft_eof; Sint linebuf; Eterm edir = NIL; byte dir[MAXPATHLEN]; + erts_aint32_t sflgs = 0; + Port *port; /* These are the defaults */ opts.packet_bytes = 0; @@ -655,8 +633,7 @@ open_port(Process* p, Eterm name, Eterm settings, int *err_nump) opts.overlapped_io = 0; opts.spawn_type = ERTS_SPAWN_ANY; opts.argv = NULL; - binary_io = 0; - soft_eof = 0; + opts.parallelism = erts_port_parallelism; linebuf = 0; *err_nump = 0; @@ -734,6 +711,13 @@ open_port(Process* p, Eterm name, Eterm settings, int *err_nump) } } else if (option == am_cd) { edir = *tp; + } else if (option == am_parallelism) { + if (*tp == am_true) + opts.parallelism = 1; + else if (*tp == am_false) + opts.parallelism = 0; + else + goto badarg; } else { goto badarg; } @@ -748,13 +732,13 @@ open_port(Process* p, Eterm name, Eterm settings, int *err_nump) } else if (*nargs == am_nouse_stdio) { opts.use_stdio = 0; } else if (*nargs == am_binary) { - binary_io = 1; + sflgs |= ERTS_PORT_SFLG_BINARY_IO; } else if (*nargs == am_in) { opts.read_write |= DO_READ; } else if (*nargs == am_out) { opts.read_write |= DO_WRITE; } else if (*nargs == am_eof) { - soft_eof = 1; + sflgs |= ERTS_PORT_SFLG_SOFT_EOF; } else if (*nargs == am_hide) { opts.hide_window = 1; } else if (*nargs == am_exit_status) { @@ -812,43 +796,29 @@ open_port(Process* p, Eterm name, Eterm settings, int *err_nump) goto badarg; } - if (*tp == am_spawn || *tp == am_spawn_driver) { /* A process port */ + if (*tp == am_spawn || *tp == am_spawn_driver || *tp == am_spawn_executable) { /* A process port */ + int encoding; if (arity != make_arityval(2)) { goto badarg; } name = tp[1]; - if (is_atom(name)) { - name_buf = (char *) erts_alloc(ERTS_ALC_T_TMP, - atom_tab(atom_val(name))->len+1); - sys_memcpy((void *) name_buf, - (void *) atom_tab(atom_val(name))->name, - atom_tab(atom_val(name))->len); - name_buf[atom_tab(atom_val(name))->len] = '\0'; - } else if ((i = is_string(name))) { - name_buf = (char *) erts_alloc(ERTS_ALC_T_TMP, i + 1); - if (intlist_to_buf(name, name_buf, i) != i) - erl_exit(1, "%s:%d: Internal error\n", __FILE__, __LINE__); - name_buf[i] = '\0'; - } else { + encoding = erts_get_native_filename_encoding(); + /* Do not convert the command to utf-16le yet, do that in win32 specific code */ + /* since the cmd is used for comparsion with drivers names and copied to port info */ + if (encoding == ERL_FILENAME_WIN_WCHAR) { + encoding = ERL_FILENAME_UTF8; + } + if ((name_buf = erts_convert_filename_to_encoding(name, NULL, 0, ERTS_ALC_T_TMP,0,1, encoding, NULL, 0)) + == NULL) { goto badarg; } + if (*tp == am_spawn_driver) { opts.spawn_type = ERTS_SPAWN_DRIVER; + } else if (*tp == am_spawn_executable) { + opts.spawn_type = ERTS_SPAWN_EXECUTABLE; } - driver = &spawn_driver; - } else if (*tp == am_spawn_executable) { /* A program */ - /* - * {spawn_executable,Progname} - */ - - if (arity != make_arityval(2)) { - goto badarg; - } - name = tp[1]; - if ((name_buf = erts_convert_filename_to_native(name, NULL, 0, ERTS_ALC_T_TMP,0,1, NULL)) == NULL) { - goto badarg; - } - opts.spawn_type = ERTS_SPAWN_EXECUTABLE; + driver = &spawn_driver; } else if (*tp == am_fd) { /* An fd port */ int n; @@ -889,29 +859,8 @@ open_port(Process* p, Eterm name, Eterm settings, int *err_nump) } if (edir != NIL) { - /* A working directory is expressed differently if spawn_executable, i.e. Unicode is handles - for spawn_executable... */ - if (opts.spawn_type != ERTS_SPAWN_EXECUTABLE) { - Eterm iolist; - DeclareTmpHeap(heap,4,p); - int r; - - UseTmpHeap(4,p); - heap[0] = edir; - heap[1] = make_list(heap+2); - heap[2] = make_small(0); - heap[3] = NIL; - iolist = make_list(heap); - r = io_list_to_buf(iolist, (char*) dir, MAXPATHLEN); - UnUseTmpHeap(4,p); - if (r < 0) { - goto badarg; - } - opts.wd = (char *) dir; - } else { - if ((opts.wd = erts_convert_filename_to_native(edir, NULL, 0, ERTS_ALC_T_TMP,0,1,NULL)) == NULL) { - goto badarg; - } + if ((opts.wd = erts_convert_filename_to_native(edir, NULL, 0, ERTS_ALC_T_TMP,0,1,NULL)) == NULL) { + goto badarg; } } @@ -926,44 +875,40 @@ open_port(Process* p, Eterm name, Eterm settings, int *err_nump) erts_smp_proc_unlock(p, ERTS_PROC_LOCK_MAIN); - port_num = erts_open_driver(driver, p->id, name_buf, &opts, err_nump); + port = erts_open_driver(driver, p->common.id, name_buf, &opts, err_typep, err_nump); #ifdef USE_VM_PROBES - if (port_num >= 0 && DTRACE_ENABLED(port_open)) { + if (port && DTRACE_ENABLED(port_open)) { DTRACE_CHARBUF(process_str, DTRACE_TERM_BUF_SIZE); DTRACE_CHARBUF(port_str, DTRACE_TERM_BUF_SIZE); dtrace_proc_str(p, process_str); - erts_snprintf(port_str, sizeof(port_str), "%T", erts_port[port_num].id); + erts_snprintf(port_str, sizeof(DTRACE_CHARBUF_NAME(port_str)), "%T", port->common.id); DTRACE3(port_open, process_str, name_buf, port_str); } #endif erts_smp_proc_lock(p, ERTS_PROC_LOCK_MAIN); - if (port_num < 0) { - DEBUGF(("open_driver returned %d(%d)\n", port_num, *err_nump)); + if (!port) { + DEBUGF(("open_driver returned (%d:%d)\n", + err_typep ? *err_typep : 4711, + err_nump ? *err_nump : 4711)); if (IS_TRACED_FL(p, F_TRACE_SCHED_PROCS)) { trace_virtual_sched(p, am_in); } - OPEN_PORT_ERROR(port_num); + goto do_return; } if (IS_TRACED_FL(p, F_TRACE_SCHED_PROCS)) { trace_virtual_sched(p, am_in); } - if (binary_io) { - erts_port_status_bor_set(&erts_port[port_num], - ERTS_PORT_SFLG_BINARY_IO); - } - if (soft_eof) { - erts_port_status_bor_set(&erts_port[port_num], - ERTS_PORT_SFLG_SOFT_EOF); - } - if (linebuf && erts_port[port_num].linebuf == NULL){ - erts_port[port_num].linebuf = allocate_linebuf(linebuf); - erts_port_status_bor_set(&erts_port[port_num], - ERTS_PORT_SFLG_LINEBUF_IO); + if (linebuf && port->linebuf == NULL){ + port->linebuf = allocate_linebuf(linebuf); + sflgs |= ERTS_PORT_SFLG_LINEBUF_IO; } + + if (sflgs) + erts_atomic32_read_bor_relb(&port->state, sflgs); do_return: if (name_buf) @@ -974,13 +919,15 @@ open_port(Process* p, Eterm name, Eterm settings, int *err_nump) if (opts.wd && opts.wd != ((char *)dir)) { erts_free(ERTS_ALC_T_TMP, (void *) opts.wd); } - return port_num; + return port; badarg: - *err_nump = BADARG; - OPEN_PORT_ERROR(-3); + if (err_typep) + *err_typep = -3; + if (err_nump) + *err_nump = BADARG; + port = NULL; goto do_return; -#undef OPEN_PORT_ERROR } /* Arguments can be given i unicode and as raw binaries, convert filename is used to convert */ @@ -991,11 +938,12 @@ static char **convert_args(Eterm l) int n; int i = 0; Eterm str; - /* We require at least one element in list (argv[0]) */ if (is_not_list(l) && is_not_nil(l)) { return NULL; } - n = list_length(l); + + n = erts_list_length(l); + /* We require at least one element in argv[0] + NULL at end */ pp = erts_alloc(ERTS_ALC_T_TMP, (n + 2) * sizeof(char **)); pp[i++] = erts_default_arg0; while (is_list(l)) { @@ -1039,7 +987,7 @@ static byte* convert_environment(Process* p, Eterm env) byte* bytes; int encoding = erts_get_native_filename_encoding(); - if ((n = list_length(env)) < 0) { + if ((n = erts_list_length(env)) < 0) { return NULL; } heap_size = 2*(5*n+1); diff --git a/erts/emulator/beam/erl_bif_re.c b/erts/emulator/beam/erl_bif_re.c index 6b843d2e08..448c6f6f6d 100644 --- a/erts/emulator/beam/erl_bif_re.c +++ b/erts/emulator/beam/erl_bif_re.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 2008-2011. All Rights Reserved. + * Copyright Ericsson AB 2008-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -71,14 +71,9 @@ void erts_init_bif_re(void) erts_pcre_stack_free = &erts_erts_pcre_stack_free; default_table = NULL; /* ISO8859-1 default, forced into pcre */ max_loop_limit = CONTEXT_REDS * LOOP_FACTOR; - - sys_memset((void *) &re_exec_trap_export, 0, sizeof(Export)); - re_exec_trap_export.address = &re_exec_trap_export.code[3]; - re_exec_trap_export.code[0] = am_erlang; - re_exec_trap_export.code[1] = am_re_run_trap; - re_exec_trap_export.code[2] = 3; - re_exec_trap_export.code[3] = (BeamInstr) em_apply_bif; - re_exec_trap_export.code[4] = (BeamInstr) &re_exec_trap; + + erts_init_trap_export(&re_exec_trap_export, am_erlang, am_re_run_trap, 3, + &re_exec_trap); grun_trap_exportp = erts_export_put(am_re,am_grun,3); urun_trap_exportp = erts_export_put(am_re,am_urun,3); @@ -185,10 +180,14 @@ static Eterm make_signed_integer(int x, Process *p) #define PARSE_FLAG_STARTOFFSET 8 #define PARSE_FLAG_CAPTURE_OPT 16 #define PARSE_FLAG_GLOBAL 32 +#define PARSE_FLAG_REPORT_ERRORS 64 +#define PARSE_FLAG_MATCH_LIMIT 128 +#define PARSE_FLAG_MATCH_LIMIT_RECURSION 256 #define CAPSPEC_VALUES 0 #define CAPSPEC_TYPE 1 #define CAPSPEC_SIZE 2 +#define CAPSPEC_INIT {0,0} static int /* 0 == ok, < 0 == error */ parse_options(Eterm listp, /* in */ @@ -196,7 +195,9 @@ parse_options(Eterm listp, /* in */ int *exec_options, /* out */ int *flags,/* out */ int *startoffset, /* out */ - Eterm *capture_spec) /* capture_spec[CAPSPEC_SIZE] */ /* out */ + Eterm *capture_spec, /* capture_spec[CAPSPEC_SIZE] */ /* out */ + int *match_limit, /* out */ + int *match_limit_recursion) /* out */ { int copt,eopt,fl; Eterm item; @@ -238,7 +239,7 @@ parse_options(Eterm listp, /* in */ case am_offset: { int tmp; - if (!term_to_int(tp[2],&tmp)) { + if (!term_to_int(tp[2],&tmp) || tmp < 0) { return -1; } if (startoffset != NULL) { @@ -247,6 +248,31 @@ parse_options(Eterm listp, /* in */ } fl |= (PARSE_FLAG_UNIQUE_EXEC_OPT|PARSE_FLAG_STARTOFFSET); break; + case am_match_limit: + { + int tmp; + if (!term_to_int(tp[2],&tmp) || tmp < 0) { + return -1; + } + if (match_limit != NULL) { + *match_limit = tmp; + } + } + fl |= (PARSE_FLAG_UNIQUE_EXEC_OPT|PARSE_FLAG_MATCH_LIMIT); + break; + case am_match_limit_recursion: + { + int tmp; + if (!term_to_int(tp[2],&tmp) || tmp < 0) { + return -1; + } + if (match_limit_recursion != NULL) { + *match_limit_recursion = tmp; + } + } + fl |= (PARSE_FLAG_UNIQUE_EXEC_OPT| + PARSE_FLAG_MATCH_LIMIT_RECURSION); + break; case am_newline: if (!is_atom(tp[2])) { return -1; @@ -280,7 +306,7 @@ parse_options(Eterm listp, /* in */ default: return -1; } - }else if (is_not_atom(item)) { + } else if (is_not_atom(item)) { return -1; } else { switch(item) { @@ -292,6 +318,10 @@ parse_options(Eterm listp, /* in */ eopt |= PCRE_NOTEMPTY; fl |= PARSE_FLAG_UNIQUE_EXEC_OPT; break; + case am_notempty_atstart: + eopt |= PCRE_NOTEMPTY_ATSTART; + fl |= PARSE_FLAG_UNIQUE_EXEC_OPT; + break; case am_notbol: eopt |= PCRE_NOTBOL; fl |= PARSE_FLAG_UNIQUE_EXEC_OPT; @@ -300,6 +330,10 @@ parse_options(Eterm listp, /* in */ eopt |= PCRE_NOTEOL; fl |= PARSE_FLAG_UNIQUE_EXEC_OPT; break; + case am_no_start_optimize: + copt |= PCRE_NO_START_OPTIMIZE; + fl |= PARSE_FLAG_UNIQUE_COMPILE_OPT; + break; case am_caseless: copt |= PCRE_CASELESS; fl |= PARSE_FLAG_UNIQUE_COMPILE_OPT; @@ -336,6 +370,18 @@ parse_options(Eterm listp, /* in */ copt |= PCRE_UNGREEDY; fl |= PARSE_FLAG_UNIQUE_COMPILE_OPT; break; + case am_ucp: + copt |= PCRE_UCP; + fl |= PARSE_FLAG_UNIQUE_COMPILE_OPT; + break; + case am_never_utf: + copt |= PCRE_NEVER_UTF; + fl |= PARSE_FLAG_UNIQUE_COMPILE_OPT; + break; + case am_report_errors: + fl |= (PARSE_FLAG_UNIQUE_EXEC_OPT | + PARSE_FLAG_REPORT_ERRORS); + break; case am_unicode: copt |= PCRE_UTF8; fl |= (PARSE_FLAG_UNIQUE_COMPILE_OPT | PARSE_FLAG_UNICODE); @@ -363,7 +409,7 @@ parse_options(Eterm listp, /* in */ if (compile_options != NULL) { *compile_options = copt; } - if (exec_options != NULL) { + if (exec_options != NULL) { *exec_options = eopt; } if (flags != NULL) { @@ -377,34 +423,49 @@ parse_options(Eterm listp, /* in */ */ static Eterm -build_compile_result(Process *p, Eterm error_tag, pcre *result, int errcode, const char *errstr, int errofset, int unicode, int with_ok) +build_compile_result(Process *p, Eterm error_tag, pcre *result, int errcode, const char *errstr, int errofset, int unicode, int with_ok, Eterm extra_err_tag) { Eterm *hp; Eterm ret; size_t pattern_size; int capture_count; + int use_crlf; + unsigned long options; if (!result) { /* Return {error_tag, {Code, String, Offset}} */ int elen = sys_strlen(errstr); int need = 3 /* tuple of 2 */ + 3 /* tuple of 2 */ + - (2 * elen) /* The error string list */; + (2 * elen) /* The error string list */ + + ((extra_err_tag != NIL) ? 3 : 0); hp = HAlloc(p, need); ret = buf_to_intlist(&hp, (char *) errstr, elen, NIL); ret = TUPLE2(hp, ret, make_small(errofset)); hp += 3; + if (extra_err_tag != NIL) { + /* Return {error_tag, {extra_tag, + {Code, String, Offset}}} instead */ + ret = TUPLE2(hp, extra_err_tag, ret); + hp += 3; + } ret = TUPLE2(hp, error_tag, ret); } else { erts_pcre_fullinfo(result, NULL, PCRE_INFO_SIZE, &pattern_size); erts_pcre_fullinfo(result, NULL, PCRE_INFO_CAPTURECOUNT, &capture_count); + erts_pcre_fullinfo(result, NULL, PCRE_INFO_OPTIONS, &options); + options &= PCRE_NEWLINE_CR|PCRE_NEWLINE_LF | PCRE_NEWLINE_CRLF | + PCRE_NEWLINE_ANY | PCRE_NEWLINE_ANYCRLF; + use_crlf = (options == PCRE_NEWLINE_ANY || + options == PCRE_NEWLINE_CRLF || + options == PCRE_NEWLINE_ANYCRLF); /* XXX: Optimize - keep in offheap binary to allow this to be kept across traps w/o need of copying */ ret = new_binary(p, (byte *) result, pattern_size); erts_pcre_free(result); - hp = HAlloc(p, (with_ok) ? (3+5) : 5); - ret = TUPLE4(hp,am_re_pattern, make_small(capture_count), make_small(unicode),ret); + hp = HAlloc(p, (with_ok) ? (3+6) : 6); + ret = TUPLE5(hp,am_re_pattern, make_small(capture_count), make_small(unicode),make_small(use_crlf),ret); if (with_ok) { - hp += 5; + hp += 6; ret = TUPLE2(hp,am_ok,ret); } } @@ -418,7 +479,7 @@ build_compile_result(Process *p, Eterm error_tag, pcre *result, int errcode, con static BIF_RETTYPE re_compile(Process* p, Eterm arg1, Eterm arg2) { - Uint slen; + ErlDrvSizeT slen; char *expr; pcre *result; int errcode = 0; @@ -428,9 +489,12 @@ re_compile(Process* p, Eterm arg1, Eterm arg2) int options = 0; int pflags = 0; int unicode = 0; +#ifdef DEBUG + int buffres; +#endif - if (parse_options(arg2,&options,NULL,&pflags,NULL,NULL) + if (parse_options(arg2,&options,NULL,&pflags,NULL,NULL,NULL,NULL) < 0) { BIF_ERROR(p,BADARG); } @@ -449,16 +513,19 @@ re_compile(Process* p, Eterm arg1, Eterm arg2) BIF_ERROR(p,BADARG); } expr = erts_alloc(ERTS_ALC_T_RE_TMP_BUF, slen + 1); - if (io_list_to_buf(arg1, expr, slen) != 0) { - erts_free(ERTS_ALC_T_RE_TMP_BUF, expr); - BIF_ERROR(p,BADARG); - } +#ifdef DEBUG + buffres = +#endif + erts_iolist_to_buf(arg1, expr, slen); + + ASSERT(buffres >= 0); + expr[slen]='\0'; result = erts_pcre_compile2(expr, options, &errcode, &errstr, &errofset, default_table); ret = build_compile_result(p, am_error, result, errcode, - errstr, errofset, unicode, 1); + errstr, errofset, unicode, 1, NIL); erts_free(ERTS_ALC_T_RE_TMP_BUF, expr); BIF_RET(ret); } @@ -496,7 +563,7 @@ typedef struct _return_info { } ReturnInfo; typedef struct _restart_context { - pcre_extra extra; + erts_pcre_extra extra; void *restart_data; Uint32 flags; char *subject; /* to be able to free it when done */ @@ -506,6 +573,7 @@ typedef struct _restart_context { } RestartContext; #define RESTART_FLAG_SUBJECT_IN_BINARY 0x1 +#define RESTART_FLAG_REPORT_MATCH_LIMIT 0x2 static void cleanup_restart_context(RestartContext *rc) { @@ -546,13 +614,29 @@ static Eterm build_exec_return(Process *p, int rc, RestartContext *restartp, Ete Eterm res; Eterm *hp; if (rc <= 0) { - res = am_nomatch; + if (restartp->flags & RESTART_FLAG_REPORT_MATCH_LIMIT) { + if (rc == PCRE_ERROR_MATCHLIMIT) { + hp = HAlloc(p,3); + res = TUPLE2(hp,am_error,am_match_limit); + } else if (rc == PCRE_ERROR_RECURSIONLIMIT) { + hp = HAlloc(p,3); + res = TUPLE2(hp,am_error,am_match_limit_recursion); + } else { + res = am_nomatch; + } + } else { + res = am_nomatch; + } } else { - ReturnInfo *ri = restartp->ret_info; + ReturnInfo *ri; ReturnInfo defri = {RetIndex,0,{0}}; - if (ri == NULL) { + + if (restartp->ret_info == NULL) { ri = &defri; + } else { + ri = restartp->ret_info; } + if (ri->type == RetNone) { res = am_match; } else if (ri->type == RetIndex){ @@ -581,6 +665,17 @@ static Eterm build_exec_return(Process *p, int rc, RestartContext *restartp, Ete ri->num_spec * 2 * sizeof(Eterm)); for (i = 0; i < ri->num_spec; ++i) { x = ri->v[i]; + if (x < -1) { + int n = i-x+1; + int j; + for (j = i+1; j < ri->num_spec && j < n; ++j) { + if (restartp->ovector[(ri->v[j])*2] >= 0) { + x = ri->v[j]; + break; + } + } + i = n-1; + } if (x < rc && x >= 0) { tmp_vect[n*2] = make_signed_integer(restartp->ovector[x*2],p); tmp_vect[n*2+1] = make_signed_integer(restartp->ovector[x*2+1]-restartp->ovector[x*2],p); @@ -662,6 +757,17 @@ static Eterm build_exec_return(Process *p, int rc, RestartContext *restartp, Ete ri->num_spec * sizeof(Eterm)); for (i = 0; i < ri->num_spec; ++i) { x = ri->v[i]; + if (x < -1) { + int n = i-x+1; + int j; + for (j = i+1; j < ri->num_spec && j < n; ++j) { + if (restartp->ovector[(ri->v[j])*2] >= 0) { + x = ri->v[j]; + break; + } + } + i = n-1; + } if (x < rc && x >= 0) { char *cp; int len; @@ -726,6 +832,49 @@ static Eterm build_exec_return(Process *p, int rc, RestartContext *restartp, Ete */ #define RINFO_SIZ(Num) (sizeof(ReturnInfo) + (sizeof(int) * (Num - 1))) +#define PICK_INDEX(NameEntry) \ + ((int) ((((unsigned) ((unsigned char *) (NameEntry))[0]) << 8) + \ + ((unsigned) ((unsigned char *) (NameEntry))[1]))) + + +static void build_one_capture(const pcre *code, ReturnInfo **ri, int *sallocated, int has_dupnames, char *name) +{ + ReturnInfo *r = (*ri); + if (has_dupnames) { + /* Build a sequence of positions, starting with -size if + more than one, otherwise just put the index there... */ + char *first,*last; + int esize = erts_pcre_get_stringtable_entries(code,name,&first,&last); + if (esize == PCRE_ERROR_NOSUBSTRING) { + r->v[r->num_spec - 1] = -1; + } else if(last == first) { + r->v[r->num_spec - 1] = PICK_INDEX(first); + } else { + int num = ((last - first) / esize) + 1; + int i; + ASSERT(num > 1); + r->v[r->num_spec - 1] = -num; /* A value less than -1 means + multiple indexes for same name */ + for (i = 0; i < num; ++i) { + ++(r->num_spec); + if(r->num_spec > (*sallocated)) { + (*sallocated) += 10; + r = erts_realloc(ERTS_ALC_T_RE_SUBJECT, r, + RINFO_SIZ((*sallocated))); + } + r->v[r->num_spec - 1] = PICK_INDEX(first); + first += esize; + } + } + } else { + /* Use the faster binary search if no duplicate names are present */ + if ((r->v[r->num_spec - 1] = erts_pcre_get_stringnumber(code,name)) == + PCRE_ERROR_NOSUBSTRING) { + r->v[r->num_spec - 1] = -1; + } + } + *ri = r; +} static ReturnInfo * build_capture(Eterm capture_spec[CAPSPEC_SIZE], const pcre *code) @@ -774,13 +923,58 @@ build_capture(Eterm capture_spec[CAPSPEC_SIZE], const pcre *code) } ri->v[ri->num_spec - 1] = 0; break; + case am_all_names: + { + int rc,i,top; + int entrysize; + unsigned char *nametable, *last = NULL; + int has_dupnames; + unsigned long options; + + if (erts_pcre_fullinfo(code, NULL, PCRE_INFO_OPTIONS, &options) != 0) + goto error; + if ((rc = erts_pcre_fullinfo(code, NULL, PCRE_INFO_NAMECOUNT, &top)) != 0) + goto error; + if (top <= 0) { + ri->num_spec = 0; + ri->type = RetNone; + break; + } + if (erts_pcre_fullinfo(code, NULL, PCRE_INFO_NAMEENTRYSIZE, &entrysize) != 0) + goto error; + if (erts_pcre_fullinfo(code, NULL, PCRE_INFO_NAMETABLE, &nametable) != 0) + goto error; + + has_dupnames = ((options & PCRE_DUPNAMES) != 0); + + for(i=0;i<top;++i) { + if (last == NULL || !has_dupnames || strcmp((char *) last+2,(char *) nametable+2)) { + ASSERT(ri->num_spec >= 0); + ++(ri->num_spec); + if(ri->num_spec > sallocated) { + sallocated += 10; + ri = erts_realloc(ERTS_ALC_T_RE_SUBJECT, ri, RINFO_SIZ(sallocated)); + } + if (has_dupnames) { + /* This could be more effective, we actually have + the names and could fill in the vector + immediately. Now we lookup the name again. */ + build_one_capture(code,&ri,&sallocated,has_dupnames,(char *) nametable+2); + } else { + ri->v[ri->num_spec - 1] = PICK_INDEX(nametable); + } + } + last = nametable; + nametable += entrysize; + } + break; + } default: if (is_list(capture_spec[CAPSPEC_VALUES])) { for(l=capture_spec[CAPSPEC_VALUES];is_list(l);l = CDR(list_val(l))) { int x; Eterm val = CAR(list_val(l)); - if (ri->num_spec < 0) - ri->num_spec = 0; + ASSERT(ri->num_spec >= 0); ++(ri->num_spec); if(ri->num_spec > sallocated) { sallocated += 10; @@ -789,6 +983,11 @@ build_capture(Eterm capture_spec[CAPSPEC_SIZE], const pcre *code) if (term_to_int(val,&x)) { ri->v[ri->num_spec - 1] = x; } else if (is_atom(val) || is_binary(val) || is_list(val)) { + int has_dupnames; + unsigned long options; + if (erts_pcre_fullinfo(code, NULL, PCRE_INFO_OPTIONS, &options) != 0) + goto error; + has_dupnames = ((options & PCRE_DUPNAMES) != 0); if (is_atom(val)) { Atom *ap = atom_tab(atom_val(val)); if ((ap->len + 1) > tmpbsiz) { @@ -802,7 +1001,11 @@ build_capture(Eterm capture_spec[CAPSPEC_SIZE], const pcre *code) memcpy(tmpb,ap->name,ap->len); tmpb[ap->len] = '\0'; } else { - Uint slen; + ErlDrvSizeT slen; +#ifdef DEBUG + int buffres; +#endif + if (erts_iolist_size(val, &slen)) { goto error; } @@ -814,15 +1017,15 @@ build_capture(Eterm capture_spec[CAPSPEC_SIZE], const pcre *code) (tmpbsiz = slen + 1)); } } - if (io_list_to_buf(val, tmpb, slen) != 0) { - goto error; - } + +#ifdef DEBUG + buffres = +#endif + erts_iolist_to_buf(val, tmpb, slen); + ASSERT(buffres >= 0); tmpb[slen] = '\0'; } - if ((ri->v[ri->num_spec - 1] = erts_pcre_get_stringnumber(code,tmpb)) == - PCRE_ERROR_NOSUBSTRING) { - ri->v[ri->num_spec - 1] = -1; - } + build_one_capture(code,&ri,&sallocated,has_dupnames,tmpb); } else { goto error; } @@ -858,7 +1061,7 @@ re_run(Process *p, Eterm arg1, Eterm arg2, Eterm arg3) const pcre *code_tmp; RestartContext restart; byte *temp_alloc = NULL; - Uint slength; + ErlDrvSizeT slength; int startoffset = 0; int options = 0, comp_options = 0; int ovsize; @@ -869,26 +1072,32 @@ re_run(Process *p, Eterm arg1, Eterm arg2, Eterm arg3) size_t code_size; Uint loop_limit_tmp; unsigned long loop_count; - Eterm capture[CAPSPEC_SIZE]; + Eterm capture[CAPSPEC_SIZE] = CAPSPEC_INIT; int is_list_cap; + int match_limit = 0; + int match_limit_recursion = 0; - if (parse_options(arg3,&comp_options,&options,&pflags,&startoffset,capture) + if (parse_options(arg3,&comp_options,&options,&pflags,&startoffset,capture, + &match_limit,&match_limit_recursion) < 0) { BIF_ERROR(p,BADARG); } is_list_cap = ((pflags & PARSE_FLAG_CAPTURE_OPT) && (capture[CAPSPEC_TYPE] == am_list)); - if (is_not_tuple(arg2) || (arityval(*tuple_val(arg2)) != 4)) { + if (is_not_tuple(arg2) || (arityval(*tuple_val(arg2)) != 5)) { if (is_binary(arg2) || is_list(arg2) || is_nil(arg2)) { /* Compile from textual RE */ - Uint slen; + ErlDrvSizeT slen; char *expr; pcre *result; int errcode = 0; const char *errstr = ""; int errofset = 0; int capture_count; +#ifdef DEBUG + int buffres; +#endif if (pflags & PARSE_FLAG_UNICODE && (!is_binary(arg2) || !is_binary(arg1) || @@ -901,18 +1110,32 @@ re_run(Process *p, Eterm arg1, Eterm arg2, Eterm arg3) } expr = erts_alloc(ERTS_ALC_T_RE_TMP_BUF, slen + 1); - if (io_list_to_buf(arg2, expr, slen) != 0) { - erts_free(ERTS_ALC_T_RE_TMP_BUF, expr); - BIF_ERROR(p,BADARG); - } + +#ifdef DEBUG + buffres = +#endif + erts_iolist_to_buf(arg2, expr, slen); + + ASSERT(buffres >= 0); + expr[slen]='\0'; result = erts_pcre_compile2(expr, comp_options, &errcode, &errstr, &errofset, default_table); if (!result) { - erts_free(ERTS_ALC_T_RE_TMP_BUF, expr); /* Compilation error gives badarg except in the compile - function */ - BIF_ERROR(p,BADARG); + function or if we have PARSE_FLAG_REPORT_ERRORS */ + if (pflags & PARSE_FLAG_REPORT_ERRORS) { + res = build_compile_result(p, am_error, result, errcode, + errstr, errofset, + (pflags & + PARSE_FLAG_UNICODE) ? 1 : 0, + 1, am_compile); + erts_free(ERTS_ALC_T_RE_TMP_BUF, expr); + BIF_RET(res); + } else { + erts_free(ERTS_ALC_T_RE_TMP_BUF, expr); + BIF_ERROR(p,BADARG); + } } if (pflags & PARSE_FLAG_GLOBAL) { Eterm precompiled = @@ -921,7 +1144,7 @@ re_run(Process *p, Eterm arg1, Eterm arg2, Eterm arg3) errstr, errofset, (pflags & PARSE_FLAG_UNICODE) ? 1 : 0, - 0); + 0, NIL); Eterm *hp,r; erts_free(ERTS_ALC_T_RE_TMP_BUF, expr); hp = HAlloc(p,4); @@ -951,7 +1174,8 @@ re_run(Process *p, Eterm arg1, Eterm arg2, Eterm arg3) tp = tuple_val(arg2); if (tp[1] != am_re_pattern || is_not_small(tp[2]) || - is_not_small(tp[3]) || is_not_binary(tp[4])) { + is_not_small(tp[3]) || is_not_small(tp[4]) || + is_not_binary(tp[5])) { BIF_ERROR(p,BADARG); } @@ -971,9 +1195,9 @@ re_run(Process *p, Eterm arg1, Eterm arg2, Eterm arg3) } ovsize = 3*(unsigned_val(tp[2])+1); - code_size = binary_size(tp[4]); - if ((code_tmp = (const pcre *) - erts_get_aligned_binary_bytes(tp[4], &temp_alloc)) == NULL) { + code_size = binary_size(tp[5]); + code_tmp = (const pcre *) erts_get_aligned_binary_bytes(tp[5], &temp_alloc); + if (code_tmp == NULL || code_size < 4) { erts_free_aligned_binary_bytes(temp_alloc); BIF_ERROR(p, BADARG); } @@ -998,6 +1222,16 @@ re_run(Process *p, Eterm arg1, Eterm arg2, Eterm arg3) restart.extra.restart_flags = 0; restart.extra.loop_counter_return = &loop_count; restart.ret_info = NULL; + + if (pflags & PARSE_FLAG_MATCH_LIMIT) { + restart.extra.flags |= PCRE_EXTRA_MATCH_LIMIT; + restart.extra.match_limit = match_limit; + } + + if (pflags & PARSE_FLAG_MATCH_LIMIT_RECURSION) { + restart.extra.flags |= PCRE_EXTRA_MATCH_LIMIT_RECURSION; + restart.extra.match_limit_recursion = match_limit_recursion; + } if (pflags & PARSE_FLAG_CAPTURE_OPT) { if ((restart.ret_info = build_capture(capture,restart.code)) == NULL) { @@ -1006,7 +1240,7 @@ re_run(Process *p, Eterm arg1, Eterm arg2, Eterm arg3) BIF_ERROR(p,BADARG); } } - + /* Optimized - if already in binary off heap, keep that and avoid copying, also binary returns can be sub binaries in that case */ @@ -1033,6 +1267,9 @@ re_run(Process *p, Eterm arg1, Eterm arg2, Eterm arg3) restart.subject = (char *) (pb->bytes+offset); restart.flags |= RESTART_FLAG_SUBJECT_IN_BINARY; } else { +#ifdef DEBUG + int buffres; +#endif handle_iolist: if (erts_iolist_size(arg1, &slength)) { erts_free(ERTS_ALC_T_RE_SUBJECT, restart.ovector); @@ -1044,24 +1281,30 @@ handle_iolist: } restart.subject = erts_alloc(ERTS_ALC_T_RE_SUBJECT, slength); - if (io_list_to_buf(arg1, restart.subject, slength) != 0) { - erts_free(ERTS_ALC_T_RE_SUBJECT, restart.ovector); - erts_free(ERTS_ALC_T_RE_SUBJECT, restart.code); - erts_free(ERTS_ALC_T_RE_SUBJECT, restart.subject); - if (restart.ret_info != NULL) { - erts_free(ERTS_ALC_T_RE_SUBJECT, restart.ret_info); - } - BIF_ERROR(p,BADARG); - } +#ifdef DEBUG + buffres = +#endif + erts_iolist_to_buf(arg1, restart.subject, slength); + ASSERT(buffres >= 0); } + if (pflags & PARSE_FLAG_REPORT_ERRORS) { + restart.flags |= RESTART_FLAG_REPORT_MATCH_LIMIT; + } #ifdef DEBUG loop_count = 0xFFFFFFFF; #endif + + rc = erts_pcre_exec(restart.code, &(restart.extra), restart.subject, + slength, startoffset, + options, restart.ovector, ovsize); + + if (rc == PCRE_ERROR_BADENDIANNESS || rc == PCRE_ERROR_BADMAGIC) { + cleanup_restart_context(&restart); + BIF_ERROR(p,BADARG); + } - rc = erts_pcre_exec(restart.code, &(restart.extra), restart.subject, slength, startoffset, - options, restart.ovector, ovsize); ASSERT(loop_count != 0xFFFFFFFF); BUMP_REDS(p, loop_count / LOOP_FACTOR); if (rc == PCRE_ERROR_LOOP_LIMIT) { @@ -1081,7 +1324,7 @@ handle_iolist: arg2 /* To avoid GC of precompiled code, XXX: not utilized yet */, magic_bin); } - + res = build_exec_return(p, rc, &restart, arg1); cleanup_restart_context(&restart); @@ -1153,6 +1396,120 @@ static BIF_RETTYPE re_exec_trap(BIF_ALIST_3) BIF_RET(res); } +BIF_RETTYPE +re_inspect_2(BIF_ALIST_2) +{ + Eterm *tp,*tmp_vec,*hp; + int i,top,j; + int entrysize; + unsigned char *nametable, *last,*name; + int has_dupnames; + unsigned long options; + int num_names; + Eterm res; + const pcre *code; + byte *temp_alloc = NULL; +#ifdef DEBUG + int infores; +#endif + + + if (is_not_tuple(BIF_ARG_1) || (arityval(*tuple_val(BIF_ARG_1)) != 5)) { + goto error; + } + tp = tuple_val(BIF_ARG_1); + if (tp[1] != am_re_pattern || is_not_small(tp[2]) || + is_not_small(tp[3]) || is_not_small(tp[4]) || + is_not_binary(tp[5])) { + goto error; + } + if (BIF_ARG_2 != am_namelist) { + goto error; + } + if ((code = (const pcre *) + erts_get_aligned_binary_bytes(tp[5], &temp_alloc)) == NULL) { + goto error; + } + + /* OK, so let's try to get some info */ + + if (erts_pcre_fullinfo(code, NULL, PCRE_INFO_OPTIONS, &options) != 0) + goto error; + +#ifdef DEBUG + infores = +#endif + erts_pcre_fullinfo(code, NULL, PCRE_INFO_NAMECOUNT, &top); + + ASSERT(infores == 0); + + if (top <= 0) { + hp = HAlloc(BIF_P, 3); + res = TUPLE2(hp,am_namelist,NIL); + erts_free_aligned_binary_bytes(temp_alloc); + BIF_RET(res); + } +#ifdef DEBUG + infores = +#endif + erts_pcre_fullinfo(code, NULL, PCRE_INFO_NAMEENTRYSIZE, &entrysize); + + ASSERT(infores == 0); + +#ifdef DEBUG + infores = +#endif + erts_pcre_fullinfo(code, NULL, PCRE_INFO_NAMETABLE, &nametable); + + ASSERT(infores == 0); + + has_dupnames = ((options & PCRE_DUPNAMES) != 0); + /* First, count the names */ + num_names = 0; + last = NULL; + name = nametable; + for(i=0;i<top;++i) { + if (last == NULL || !has_dupnames || strcmp((char *) last+2, + (char *) name+2)) { + ++num_names; + } + last = name; + name += entrysize; + } + tmp_vec = erts_alloc(ERTS_ALC_T_RE_TMP_BUF, + num_names * sizeof(Eterm)); + /* Re-iterate and fill tmp_vec */ + last = NULL; + name = nametable; + j = 0; + for(i=0;i<top;++i) { + if (last == NULL || !has_dupnames || strcmp((char *) last+2, + (char *) name+2)) { + tmp_vec[j++] = new_binary(BIF_P, (byte *) name+2, strlen((char *) name+2)); + } + last = name; + name += entrysize; + } + ASSERT(j == num_names); + hp = HAlloc(BIF_P, 3+2*j); + res = NIL; + for(i = j-1 ;i >= 0; --i) { + res = CONS(hp,tmp_vec[i],res); + hp += 2; + } + res = TUPLE2(hp,am_namelist,res); + erts_free_aligned_binary_bytes(temp_alloc); + erts_free(ERTS_ALC_T_RE_TMP_BUF, tmp_vec); + BIF_RET(res); + + error: + /* tmp_vec never allocated when we reach here */ + erts_free_aligned_binary_bytes(temp_alloc); + BIF_ERROR(BIF_P,BADARG); +} + + + diff --git a/erts/emulator/beam/erl_bif_timer.c b/erts/emulator/beam/erl_bif_timer.c index d806be0704..03ac97283c 100644 --- a/erts/emulator/beam/erl_bif_timer.c +++ b/erts/emulator/beam/erl_bif_timer.c @@ -265,10 +265,10 @@ link_proc(Process *p, ErtsBifTimer* btm) { btm->receiver.proc.ess = p; btm->receiver.proc.prev = NULL; - btm->receiver.proc.next = p->bif_timers; - if (p->bif_timers) - p->bif_timers->receiver.proc.prev = btm; - p->bif_timers = btm; + btm->receiver.proc.next = p->u.bif_timers; + if (p->u.bif_timers) + p->u.bif_timers->receiver.proc.prev = btm; + p->u.bif_timers = btm; } static ERTS_INLINE void @@ -277,7 +277,7 @@ unlink_proc(ErtsBifTimer* btm) if (btm->receiver.proc.prev) btm->receiver.proc.prev->receiver.proc.next = btm->receiver.proc.next; else - btm->receiver.proc.ess->bif_timers = btm->receiver.proc.next; + btm->receiver.proc.ess->u.bif_timers = btm->receiver.proc.next; if (btm->receiver.proc.next) btm->receiver.proc.next->receiver.proc.prev = btm->receiver.proc.prev; } @@ -324,10 +324,9 @@ bif_timer_timeout(ErtsBifTimer* btm) ASSERT(!erts_get_current_process()); if (btm->flags & BTM_FLG_BYNAME) - rp = erts_whereis_process(NULL,0,btm->receiver.name,0,ERTS_P2P_FLG_SMP_INC_REFC); + rp = erts_whereis_process(NULL, 0, btm->receiver.name, 0, 0); else { rp = btm->receiver.proc.ess; - erts_smp_proc_inc_refc(rp); unlink_proc(btm); } @@ -379,7 +378,6 @@ bif_timer_timeout(ErtsBifTimer* btm) #endif ); erts_smp_proc_unlock(rp, rp_locks); - erts_smp_proc_dec_refc(rp); } } @@ -615,10 +613,10 @@ erts_print_bif_timer_info(int to, void *to_arg) for (btm = bif_timer_tab[i]; btm; btm = btm->tab.next) { Eterm receiver = (btm->flags & BTM_FLG_BYNAME ? btm->receiver.name - : btm->receiver.proc.ess->id); + : btm->receiver.proc.ess->common.id); erts_print(to, to_arg, "=timer:%T\n", receiver); erts_print(to, to_arg, "Message: %T\n", btm->message); - erts_print(to, to_arg, "Time left: %u ms\n", + erts_print(to, to_arg, "Time left: %u\n", erts_time_left(&btm->tm)); } } @@ -639,7 +637,7 @@ erts_cancel_bif_timers(Process *p, ErtsProcLocks plocks) erts_smp_proc_lock(p, plocks); } - btm = p->bif_timers; + btm = p->u.bif_timers; while (btm) { ErtsBifTimer *tmp_btm; ASSERT(!(btm->flags & BTM_FLG_CANCELED)); @@ -649,7 +647,7 @@ erts_cancel_bif_timers(Process *p, ErtsProcLocks plocks) erts_cancel_timer(&tmp_btm->tm); } - p->bif_timers = NULL; + p->u.bif_timers = NULL; erts_smp_btm_rwunlock(); } @@ -698,7 +696,7 @@ erts_bif_timer_foreach(void (*func)(Eterm, Eterm, ErlHeapFragment *, void *), for (btm = bif_timer_tab[i]; btm; btm = btm->tab.next) { (*func)((btm->flags & BTM_FLG_BYNAME ? btm->receiver.name - : btm->receiver.proc.ess->id), + : btm->receiver.proc.ess->common.id), btm->message, btm->bp, arg); diff --git a/erts/emulator/beam/erl_bif_trace.c b/erts/emulator/beam/erl_bif_trace.c index 80f774523c..06fbbea123 100644 --- a/erts/emulator/beam/erl_bif_trace.c +++ b/erts/emulator/beam/erl_bif_trace.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 1999-2012. All Rights Reserved. + * Copyright Ericsson AB 1999-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -42,14 +42,33 @@ #define DECL_AM(S) Eterm AM_ ## S = am_atom_put(#S, sizeof(#S) - 1) const struct trace_pattern_flags erts_trace_pattern_flags_off = {0, 0, 0, 0, 0}; + +/* + * The following variables are protected by code write permission. + */ static int erts_default_trace_pattern_is_on; static Binary *erts_default_match_spec; static Binary *erts_default_meta_match_spec; static struct trace_pattern_flags erts_default_trace_pattern_flags; static Eterm erts_default_meta_tracer_pid; +static struct { /* Protected by code write permission */ + int current; + int install; + int local; + BpFunctions f; /* Local functions */ + BpFunctions e; /* Export entries */ +#ifdef ERTS_SMP + Process* stager; + ErtsThrPrgrLaterOp lop; +#endif +} finish_bp; + static Eterm trace_pattern(Process* p, Eterm MFA, Eterm Pattern, Eterm flaglist); +#ifdef ERTS_SMP +static void smp_bp_finisher(void* arg); +#endif static BIF_RETTYPE system_monitor(Process *p, Eterm monitor_pid, Eterm list); @@ -60,12 +79,11 @@ static Eterm trace_info_pid(Process* p, Eterm pid_spec, Eterm key); static Eterm trace_info_func(Process* p, Eterm pid_spec, Eterm key); static Eterm trace_info_on_load(Process* p, Eterm key); -static int setup_func_trace(Export* ep, void* match_prog); -static int reset_func_trace(Export* ep); -static void reset_bif_trace(int bif_index); -static void setup_bif_trace(int bif_index); -static void set_trace_bif(int bif_index, void* match_prog); -static void clear_trace_bif(int bif_index); +static void reset_bif_trace(void); +static void setup_bif_trace(void); +static void install_exp_breakpoints(BpFunctions* f); +static void uninstall_exp_breakpoints(BpFunctions* f); +static void clean_export_entries(BpFunctions* f); void erts_bif_trace_init(void) @@ -98,7 +116,7 @@ trace_pattern(Process* p, Eterm MFA, Eterm Pattern, Eterm flaglist) { DeclareTmpHeap(mfa,3,p); /* Not really heap here, but might be when setting pattern */ int i; - int matches = 0; + int matches = -1; int specified = 0; enum erts_break_op on; Binary* match_prog_set; @@ -106,10 +124,12 @@ trace_pattern(Process* p, Eterm MFA, Eterm Pattern, Eterm flaglist) struct trace_pattern_flags flags = erts_trace_pattern_flags_off; int is_global; Process *meta_tracer_proc = p; - Eterm meta_tracer_pid = p->id; + Eterm meta_tracer_pid = p->common.id; - erts_smp_proc_unlock(p, ERTS_PROC_LOCK_MAIN); - erts_smp_thr_progress_block(); + if (!erts_try_seize_code_write_permission(p)) { + ERTS_BIF_YIELD3(bif_export[BIF_trace_pattern_3], p, MFA, Pattern, flaglist); + } + finish_bp.current = -1; UseTmpHeap(3,p); /* @@ -151,14 +171,12 @@ trace_pattern(Process* p, Eterm MFA, Eterm Pattern, Eterm flaglist) } } else if (is_internal_port(meta_tracer_pid)) { Port *meta_tracer_port; - meta_tracer_proc = NULL; - if (internal_port_index(meta_tracer_pid) >= erts_max_ports) - goto error; - meta_tracer_port = - &erts_port[internal_port_index(meta_tracer_pid)]; - if (INVALID_TRACER_PORT(meta_tracer_port, meta_tracer_pid)) { + meta_tracer_proc = NULL; + meta_tracer_port = (erts_port_lookup( + meta_tracer_pid, + ERTS_PORT_SFLGS_INVALID_TRACER_LOOKUP)); + if (!meta_tracer_port) goto error; - } } else { goto error; } @@ -234,14 +252,13 @@ trace_pattern(Process* p, Eterm MFA, Eterm Pattern, Eterm flaglist) MatchSetRef(erts_default_meta_match_spec); erts_default_meta_tracer_pid = meta_tracer_pid; if (meta_tracer_proc) { - meta_tracer_proc->trace_flags |= F_TRACER; + ERTS_TRACE_FLAGS(meta_tracer_proc) |= F_TRACER; } } else if (! flags.breakpoint) { MatchSetUnref(erts_default_meta_match_spec); erts_default_meta_match_spec = NULL; erts_default_meta_tracer_pid = NIL; } - MatchSetUnref(match_prog_set); if (erts_default_trace_pattern_flags.breakpoint && flags.breakpoint) { /* Breakpoint trace -> breakpoint trace */ @@ -297,8 +314,7 @@ trace_pattern(Process* p, Eterm MFA, Eterm Pattern, Eterm flaglist) erts_default_trace_pattern_is_on = !!flags.breakpoint; } } - - goto done; + matches = 0; } else if (is_tuple(MFA)) { Eterm *tp = tuple_val(MFA); if (tp[0] != make_arityval(3)) { @@ -322,36 +338,64 @@ trace_pattern(Process* p, Eterm MFA, Eterm Pattern, Eterm flaglist) if (is_small(mfa[2])) { mfa[2] = signed_val(mfa[2]); } - } else { - goto error; - } - if (meta_tracer_proc) { - meta_tracer_proc->trace_flags |= F_TRACER; - } + if (meta_tracer_proc) { + ERTS_TRACE_FLAGS(meta_tracer_proc) |= F_TRACER; + } + matches = erts_set_trace_pattern(p, mfa, specified, + match_prog_set, match_prog_set, + on, flags, meta_tracer_pid, 0); + } - matches = erts_set_trace_pattern(mfa, specified, - match_prog_set, match_prog_set, - on, flags, meta_tracer_pid); + error: MatchSetUnref(match_prog_set); - - done: UnUseTmpHeap(3,p); - erts_smp_thr_progress_unblock(); - erts_smp_proc_lock(p, ERTS_PROC_LOCK_MAIN); - return make_small(matches); +#ifdef ERTS_SMP + if (finish_bp.current >= 0) { + ASSERT(matches >= 0); + ASSERT(finish_bp.stager == NULL); + finish_bp.stager = p; + erts_schedule_thr_prgr_later_op(smp_bp_finisher, NULL, &finish_bp.lop); + erts_smp_proc_inc_refc(p); + erts_suspend(p, ERTS_PROC_LOCK_MAIN, NULL); + ERTS_BIF_YIELD_RETURN(p, make_small(matches)); + } +#endif - error: + erts_release_code_write_permission(); - MatchSetUnref(match_prog_set); + if (matches >= 0) { + return make_small(matches); + } + else { + BIF_ERROR(p, BADARG); + } +} - UnUseTmpHeap(3,p); - erts_smp_thr_progress_unblock(); - erts_smp_proc_lock(p, ERTS_PROC_LOCK_MAIN); - BIF_ERROR(p, BADARG); +#ifdef ERTS_SMP +static void smp_bp_finisher(void* null) +{ + if (erts_finish_breakpointing()) { /* Not done */ + /* Arrange for being called again */ + erts_schedule_thr_prgr_later_op(smp_bp_finisher, NULL, &finish_bp.lop); + } + else { /* Done */ + Process* p = finish_bp.stager; +#ifdef DEBUG + finish_bp.stager = NULL; +#endif + erts_release_code_write_permission(); + erts_smp_proc_lock(p, ERTS_PROC_LOCK_STATUS); + if (!ERTS_PROC_IS_EXITING(p)) { + erts_resume(p, ERTS_PROC_LOCK_STATUS); + } + erts_smp_proc_unlock(p, ERTS_PROC_LOCK_STATUS); + erts_smp_proc_dec_refc(p); + } } +#endif /* ERTS_SMP */ void erts_get_default_trace_pattern(int *trace_pattern_is_on, @@ -360,6 +404,8 @@ erts_get_default_trace_pattern(int *trace_pattern_is_on, struct trace_pattern_flags *trace_pattern_flags, Eterm *meta_tracer_pid) { + ERTS_SMP_LC_ASSERT(erts_has_code_write_permission() || + erts_smp_thr_progress_is_blocking()); if (trace_pattern_is_on) *trace_pattern_is_on = erts_default_trace_pattern_is_on; if (match_spec) @@ -372,7 +418,12 @@ erts_get_default_trace_pattern(int *trace_pattern_is_on, *meta_tracer_pid = erts_default_meta_tracer_pid; } - +int erts_is_default_trace_enabled(void) +{ + ERTS_SMP_LC_ASSERT(erts_has_code_write_permission() || + erts_smp_thr_progress_is_blocking()); + return erts_default_trace_pattern_is_on; +} Uint erts_trace_flag2bit(Eterm flag) @@ -466,27 +517,31 @@ Eterm trace_3(BIF_ALIST_3) BIF_ERROR(p, BADARG); } + if (!erts_try_seize_code_write_permission(BIF_P)) { + ERTS_BIF_YIELD3(bif_export[BIF_trace_3], BIF_P, BIF_ARG_1, BIF_ARG_2, BIF_ARG_3); + } + if (is_nil(tracer) || is_internal_pid(tracer)) { Process *tracer_proc = erts_pid2proc(p, ERTS_PROC_LOCK_MAIN, - is_nil(tracer) ? p->id : tracer, + is_nil(tracer) ? p->common.id : tracer, ERTS_PROC_LOCKS_ALL); if (!tracer_proc) goto error; - tracer_proc->trace_flags |= F_TRACER; + ERTS_TRACE_FLAGS(tracer_proc) |= F_TRACER; erts_smp_proc_unlock(tracer_proc, (tracer_proc == p ? ERTS_PROC_LOCKS_ALL_MINOR : ERTS_PROC_LOCKS_ALL)); } else if (is_internal_port(tracer)) { - Port *tracer_port = erts_id2port(tracer, p, ERTS_PROC_LOCK_MAIN); - if (!erts_is_valid_tracer_port(tracer)) { - if (tracer_port) - erts_smp_port_unlock(tracer_port); + Port *tracer_port = erts_id2port_sflgs(tracer, + p, + ERTS_PROC_LOCK_MAIN, + ERTS_PORT_SFLGS_INVALID_TRACER_LOOKUP); + if (!tracer_port) goto error; - } - tracer_port->trace_flags |= F_TRACER; - erts_smp_port_unlock(tracer_port); + ERTS_TRACE_FLAGS(tracer_port) |= F_TRACER; + erts_port_release(tracer_port); } else goto error; @@ -497,7 +552,7 @@ Eterm trace_3(BIF_ALIST_3) case am_true: on = 1; if (is_nil(tracer)) - tracer = p->id; + tracer = p->common.id; break; default: goto error; @@ -519,26 +574,29 @@ Eterm trace_3(BIF_ALIST_3) if (pid_spec == tracer) goto error; - tracee_port = erts_id2port(pid_spec, p, ERTS_PROC_LOCK_MAIN); + tracee_port = erts_id2port_sflgs(pid_spec, + p, + ERTS_PROC_LOCK_MAIN, + ERTS_PORT_SFLGS_INVALID_LOOKUP); if (!tracee_port) goto error; if (tracer != NIL && port_already_traced(p, tracee_port, tracer)) { - erts_smp_port_unlock(tracee_port); + erts_port_release(tracee_port); goto already_traced; } if (on) - tracee_port->trace_flags |= mask; + ERTS_TRACE_FLAGS(tracee_port) |= mask; else - tracee_port->trace_flags &= ~mask; + ERTS_TRACE_FLAGS(tracee_port) &= ~mask; - if (!tracee_port->trace_flags) - tracee_port->tracer_proc = NIL; + if (!ERTS_TRACE_FLAGS(tracee_port)) + ERTS_TRACER_PROC(tracee_port) = NIL; else if (tracer != NIL) - tracee_port->tracer_proc = tracer; + ERTS_TRACER_PROC(tracee_port) = tracer; - erts_smp_port_unlock(tracee_port); + erts_port_release(tracee_port); matches = 1; } else if (is_pid(pid_spec)) { @@ -570,14 +628,14 @@ Eterm trace_3(BIF_ALIST_3) } if (on) - tracee_p->trace_flags |= mask; + ERTS_TRACE_FLAGS(tracee_p) |= mask; else - tracee_p->trace_flags &= ~mask; + ERTS_TRACE_FLAGS(tracee_p) &= ~mask; - if ((tracee_p->trace_flags & TRACEE_FLAGS) == 0) - tracee_p->tracer_proc = NIL; + if ((ERTS_TRACE_FLAGS(tracee_p) & TRACEE_FLAGS) == 0) + ERTS_TRACER_PROC(tracee_p) = NIL; else if (tracer != NIL) - tracee_p->tracer_proc = tracer; + ERTS_TRACER_PROC(tracee_p) = tracer; erts_smp_proc_unlock(tracee_p, (tracee_p == p @@ -651,48 +709,56 @@ Eterm trace_3(BIF_ALIST_3) ok = 1; if (procs || mods) { + int max = erts_ptab_max(&erts_proc); /* tracing of processes */ - for (i = 0; i < erts_max_processes; i++) { - Process* tracee_p = process_tab[i]; - + for (i = 0; i < max; i++) { + Process* tracee_p = erts_pix2proc(i); if (! tracee_p) continue; if (tracer != NIL) { - if (tracee_p->id == tracer) + if (tracee_p->common.id == tracer) continue; if (already_traced(NULL, tracee_p, tracer)) continue; } if (on) { - tracee_p->trace_flags |= mask; + ERTS_TRACE_FLAGS(tracee_p) |= mask; } else { - tracee_p->trace_flags &= ~mask; + ERTS_TRACE_FLAGS(tracee_p) &= ~mask; } - if(!(tracee_p->trace_flags & TRACEE_FLAGS)) { - tracee_p->tracer_proc = NIL; + if(!(ERTS_TRACE_FLAGS(tracee_p) & TRACEE_FLAGS)) { + ERTS_TRACER_PROC(tracee_p) = NIL; } else if (tracer != NIL) { - tracee_p->tracer_proc = tracer; + ERTS_TRACER_PROC(tracee_p) = tracer; } matches++; } } if (ports || mods) { + int max = erts_ptab_max(&erts_port); /* tracing of ports */ - for (i = 0; i < erts_max_ports; i++) { - Port *tracee_port = &erts_port[i]; - if (tracee_port->status & ERTS_PORT_SFLGS_DEAD) continue; + for (i = 0; i < max; i++) { + erts_aint32_t state; + Port *tracee_port = erts_pix2port(i); + if (!tracee_port) + continue; + state = erts_atomic32_read_nob(&tracee_port->state); + if (state & ERTS_PORT_SFLGS_DEAD) + continue; if (tracer != NIL) { - if (tracee_port->id == tracer) continue; - if (port_already_traced(NULL, tracee_port, tracer)) continue; + if (tracee_port->common.id == tracer) + continue; + if (port_already_traced(NULL, tracee_port, tracer)) + continue; } - if (on) tracee_port->trace_flags |= mask; - else tracee_port->trace_flags &= ~mask; + if (on) ERTS_TRACE_FLAGS(tracee_port) |= mask; + else ERTS_TRACE_FLAGS(tracee_port) &= ~mask; - if (!(tracee_port->trace_flags & TRACEE_FLAGS)) { - tracee_port->tracer_proc = NIL; + if (!(ERTS_TRACE_FLAGS(tracee_port) & TRACEE_FLAGS)) { + ERTS_TRACER_PROC(tracee_port) = NIL; } else if (tracer != NIL) { - tracee_port->tracer_proc = tracer; + ERTS_TRACER_PROC(tracee_port) = tracer; } /* matches are not counted for ports since it would violate compatibility */ /* This could be a reason to modify this function or make a new one. */ @@ -730,6 +796,7 @@ Eterm trace_3(BIF_ALIST_3) erts_smp_proc_lock(p, ERTS_PROC_LOCK_MAIN); } #endif + erts_release_code_write_permission(); BIF_RET(make_small(matches)); @@ -745,6 +812,7 @@ Eterm trace_3(BIF_ALIST_3) erts_smp_proc_lock(p, ERTS_PROC_LOCK_MAIN); } #endif + erts_release_code_write_permission(); BIF_ERROR(p, BADARG); } @@ -759,21 +827,20 @@ static int port_already_traced(Process *c_p, Port *tracee_port, Eterm tracer) * * main lock is held on c_p * * all locks are held on port tracee_p */ - if ((tracee_port->trace_flags & TRACEE_FLAGS) - && tracee_port->tracer_proc != tracer) { + if ((ERTS_TRACE_FLAGS(tracee_port) & TRACEE_FLAGS) + && ERTS_TRACER_PROC(tracee_port) != tracer) { /* This tracee is already being traced, and not by the * tracer to be */ - if (is_internal_port(tracee_port->tracer_proc)) { - if (!erts_is_valid_tracer_port(tracee_port->tracer_proc)) { + if (is_internal_port(ERTS_TRACER_PROC(tracee_port))) { + if (!erts_is_valid_tracer_port(ERTS_TRACER_PROC(tracee_port))) { /* Current trace port now invalid * - discard it and approve the new. */ goto remove_tracer; } else return 1; } - else if(is_internal_pid(tracee_port->tracer_proc)) { - Process *tracer_p = erts_pid2proc(c_p, ERTS_PROC_LOCK_MAIN, - tracee_port->tracer_proc, 0); + else if(is_internal_pid(ERTS_TRACER_PROC(tracee_port))) { + Process *tracer_p = erts_proc_lookup(ERTS_TRACER_PROC(tracee_port)); if (!tracer_p) { /* Current trace process now invalid * - discard it and approve the new. */ @@ -783,8 +850,8 @@ static int port_already_traced(Process *c_p, Port *tracee_port, Eterm tracer) } else { remove_tracer: - tracee_port->trace_flags &= ~TRACEE_FLAGS; - tracee_port->tracer_proc = NIL; + ERTS_TRACE_FLAGS(tracee_port) &= ~TRACEE_FLAGS; + ERTS_TRACER_PROC(tracee_port) = NIL; } } return 0; @@ -800,21 +867,22 @@ static int already_traced(Process *c_p, Process *tracee_p, Eterm tracer) * * main lock is held on c_p * * all locks multiple are held on tracee_p */ - if ((tracee_p->trace_flags & TRACEE_FLAGS) - && tracee_p->tracer_proc != tracer) { + if ((ERTS_TRACE_FLAGS(tracee_p) & TRACEE_FLAGS) + && ERTS_TRACER_PROC(tracee_p) != tracer) { /* This tracee is already being traced, and not by the * tracer to be */ - if (is_internal_port(tracee_p->tracer_proc)) { - if (!erts_is_valid_tracer_port(tracee_p->tracer_proc)) { + if (is_internal_port(ERTS_TRACER_PROC(tracee_p))) { + if (!erts_is_valid_tracer_port(ERTS_TRACER_PROC(tracee_p))) { /* Current trace port now invalid * - discard it and approve the new. */ goto remove_tracer; } else return 1; } - else if(is_internal_pid(tracee_p->tracer_proc)) { - Process *tracer_p = erts_pid2proc(c_p, ERTS_PROC_LOCK_MAIN, - tracee_p->tracer_proc, 0); + else if(is_internal_pid(ERTS_TRACER_PROC(tracee_p))) { + Process *tracer_p; + + tracer_p = erts_proc_lookup(ERTS_TRACER_PROC(tracee_p)); if (!tracer_p) { /* Current trace process now invalid * - discard it and approve the new. */ @@ -824,8 +892,8 @@ static int already_traced(Process *c_p, Process *tracee_p, Eterm tracer) } else { remove_tracer: - tracee_p->trace_flags &= ~TRACEE_FLAGS; - tracee_p->tracer_proc = NIL; + ERTS_TRACE_FLAGS(tracee_p) &= ~TRACEE_FLAGS; + ERTS_TRACER_PROC(tracee_p) = NIL; } } return 0; @@ -841,6 +909,11 @@ Eterm trace_info_2(BIF_ALIST_2) Eterm What = BIF_ARG_1; Eterm Key = BIF_ARG_2; Eterm res; + + if (!erts_try_seize_code_write_permission(p)) { + ERTS_BIF_YIELD2(bif_export[BIF_trace_info_2], p, What, Key); + } + if (What == am_on_load) { res = trace_info_on_load(p, Key); } else if (is_atom(What) || is_pid(What)) { @@ -848,8 +921,10 @@ Eterm trace_info_2(BIF_ALIST_2) } else if (is_tuple(What)) { res = trace_info_func(p, What, Key); } else { + erts_release_code_write_permission(); BIF_ERROR(p, BADARG); } + erts_release_code_write_permission(); BIF_RET(res); } @@ -862,8 +937,7 @@ trace_info_pid(Process* p, Eterm pid_spec, Eterm key) if (pid_spec == am_new) { erts_get_default_tracing(&trace_flags, &tracer); - } else if (is_internal_pid(pid_spec) - && internal_pid_index(pid_spec) < erts_max_processes) { + } else if (is_internal_pid(pid_spec)) { Process *tracee; tracee = erts_pid2proc(p, ERTS_PROC_LOCK_MAIN, pid_spec, ERTS_PROC_LOCKS_ALL); @@ -871,16 +945,16 @@ trace_info_pid(Process* p, Eterm pid_spec, Eterm key) if (!tracee) { return am_undefined; } else { - tracer = tracee->tracer_proc; - trace_flags = tracee->trace_flags; + tracer = ERTS_TRACER_PROC(tracee); + trace_flags = ERTS_TRACE_FLAGS(tracee); } if (is_internal_pid(tracer)) { - if (!erts_pid2proc(p, ERTS_PROC_LOCK_MAIN, tracer, 0)) { + if (!erts_proc_lookup(tracer)) { reset_tracer: - tracee->trace_flags &= ~TRACEE_FLAGS; - trace_flags = tracee->trace_flags; - tracer = tracee->tracer_proc = NIL; + ERTS_TRACE_FLAGS(tracee) &= ~TRACEE_FLAGS; + trace_flags = ERTS_TRACE_FLAGS(tracee); + tracer = ERTS_TRACER_PROC(tracee) = NIL; } } else if (is_internal_port(tracer)) { @@ -977,64 +1051,54 @@ static int function_is_traced(Process *p, Binary **ms, /* out */ Binary **ms_meta, /* out */ Eterm *tracer_pid_meta, /* out */ - Sint *count, /* out */ + Uint *count, /* out */ Eterm *call_time) /* out */ { Export e; Export* ep; - int i; - BeamInstr *code; + BeamInstr* pc; /* First look for an export entry */ e.code[0] = mfa[0]; e.code[1] = mfa[1]; e.code[2] = mfa[2]; if ((ep = export_get(&e)) != NULL) { - if (ep->address == ep->code+3 && - ep->code[3] != (BeamInstr) em_call_error_handler) { - if (ep->code[3] == (BeamInstr) em_call_traced_function) { - *ms = ep->match_prog_set; + pc = ep->code+3; + if (ep->addressv[erts_active_code_ix()] == pc && + *pc != (BeamInstr) em_call_error_handler) { + + int r = 0; + + ASSERT(*pc == (BeamInstr) em_apply_bif || + *pc == (BeamInstr) BeamOp(op_i_generic_breakpoint)); + + if (erts_is_trace_break(pc, ms, 0)) { return FUNC_TRACE_GLOBAL_TRACE; } - if (ep->code[3] == (BeamInstr) em_apply_bif) { - for (i = 0; i < BIF_SIZE; ++i) { - if (bif_export[i] == ep) { - int r = 0; - - if (erts_bif_trace_flags[i] & BIF_TRACE_AS_GLOBAL) { - *ms = ep->match_prog_set; - return FUNC_TRACE_GLOBAL_TRACE; - } else { - if (erts_bif_trace_flags[i] & BIF_TRACE_AS_LOCAL) { - r |= FUNC_TRACE_LOCAL_TRACE; - *ms = ep->match_prog_set; - } - if (erts_is_mtrace_break(ep->code+3, ms_meta, - tracer_pid_meta)) { - r |= FUNC_TRACE_META_TRACE; - } - if (erts_is_time_break(p, ep->code+3, call_time)) { - r |= FUNC_TRACE_TIME_TRACE; - } - } - return r ? r : FUNC_TRACE_UNTRACED; - } - } - erl_exit(1,"Impossible ghost bif encountered in trace_info."); + + if (erts_is_trace_break(pc, ms, 1)) { + r |= FUNC_TRACE_LOCAL_TRACE; + } + if (erts_is_mtrace_break(pc, ms_meta, tracer_pid_meta)) { + r |= FUNC_TRACE_META_TRACE; + } + if (erts_is_time_break(p, pc, call_time)) { + r |= FUNC_TRACE_TIME_TRACE; } + return r ? r : FUNC_TRACE_UNTRACED; } } /* OK, now look for breakpoint tracing */ - if ((code = erts_find_local_func(mfa)) != NULL) { + if ((pc = erts_find_local_func(mfa)) != NULL) { int r = - (erts_is_trace_break(code, ms, NULL) + (erts_is_trace_break(pc, ms, 1) ? FUNC_TRACE_LOCAL_TRACE : 0) - | (erts_is_mtrace_break(code, ms_meta, tracer_pid_meta) + | (erts_is_mtrace_break(pc, ms_meta, tracer_pid_meta) ? FUNC_TRACE_META_TRACE : 0) - | (erts_is_count_break(code, count) + | (erts_is_count_break(pc, count) ? FUNC_TRACE_COUNT_TRACE : 0) - | (erts_is_time_break(p, code, call_time) + | (erts_is_time_break(p, pc, call_time) ? FUNC_TRACE_TIME_TRACE : 0); return r ? r : FUNC_TRACE_UNTRACED; @@ -1049,7 +1113,7 @@ trace_info_func(Process* p, Eterm func_spec, Eterm key) Eterm* hp; DeclareTmpHeap(mfa,3,p); /* Not really heap here, but might be when setting pattern */ Binary *ms = NULL, *ms_meta = NULL; - Sint count = 0; + Uint count = 0; Eterm traced = am_false; Eterm match_spec = am_false; Eterm retval = am_false; @@ -1137,9 +1201,7 @@ trace_info_func(Process* p, Eterm func_spec, Eterm key) break; case am_call_count: if (r & FUNC_TRACE_COUNT_TRACE) { - retval = count < 0 ? - erts_make_integer(-count-1, p) : - erts_make_integer(count, p); + retval = erts_make_integer(count, p); } break; case am_call_time: @@ -1162,9 +1224,7 @@ trace_info_func(Process* p, Eterm func_spec, Eterm key) match_spec_meta = NIL; } if (r & FUNC_TRACE_COUNT_TRACE) { - c = count < 0 ? - erts_make_integer(-count-1, p) : - erts_make_integer(count, p); + c = erts_make_integer(count, p); } if (r & FUNC_TRACE_TIME_TRACE) { ct = call_time; @@ -1328,38 +1388,53 @@ trace_info_on_load(Process* p, Eterm key) #undef FUNC_TRACE_LOCAL_TRACE int -erts_set_trace_pattern(Eterm* mfa, int specified, +erts_set_trace_pattern(Process*p, Eterm* mfa, int specified, Binary* match_prog_set, Binary *meta_match_prog_set, int on, struct trace_pattern_flags flags, - Eterm meta_tracer_pid) + Eterm meta_tracer_pid, int is_blocking) { + const ErtsCodeIndex code_ix = erts_active_code_ix(); int matches = 0; int i; + int n; + BpFunction* fp; /* * First work on normal functions (not real BIFs). */ - - for (i = 0; i < export_list_size(); i++) { - Export* ep = export_list(i); - int j; - - if (ExportIsBuiltIn(ep)) { - continue; - } - - for (j = 0; j < specified && mfa[j] == ep->code[j]; j++) { - /* Empty loop body */ - } - if (j == specified) { - if (on) { - if (! flags.breakpoint) - matches += setup_func_trace(ep, match_prog_set); - else - reset_func_trace(ep); - } else if (! flags.breakpoint) { - matches += reset_func_trace(ep); + erts_bp_match_export(&finish_bp.e, mfa, specified); + fp = finish_bp.e.matching; + n = finish_bp.e.matched; + + for (i = 0; i < n; i++) { + BeamInstr* pc = fp[i].pc; + Export* ep = (Export *)(((char *)(pc-3)) - offsetof(Export, code)); + + if (on && !flags.breakpoint) { + /* Turn on global call tracing */ + if (ep->addressv[code_ix] != pc) { + fp[i].mod->curr.num_traced_exports++; +#ifdef DEBUG + pc[-5] = (BeamInstr) BeamOp(op_i_func_info_IaaI); +#endif + pc[0] = (BeamInstr) BeamOp(op_jump_f); + pc[1] = (BeamInstr) ep->addressv[code_ix]; + } + erts_set_call_trace_bif(pc, match_prog_set, 0); + if (ep->addressv[code_ix] != pc) { + pc[0] = (BeamInstr) BeamOp(op_i_generic_breakpoint); + } + } else if (!on && flags.breakpoint) { + /* Turn off breakpoint tracing -- nothing to do here. */ + } else { + /* + * Turn off global tracing, either explicitly or implicitly + * before turning on breakpoint tracing. + */ + erts_clear_call_trace_bif(pc, 0); + if (pc[0] == (BeamInstr) BeamOp(op_i_generic_breakpoint)) { + pc[0] = (BeamInstr) BeamOp(op_jump_f); } } } @@ -1384,26 +1459,15 @@ erts_set_trace_pattern(Eterm* mfa, int specified, /* Empty loop body */ } if (j == specified) { + BeamInstr* pc = (BeamInstr *)bif_export[i]->code + 3; + if (! flags.breakpoint) { /* Export entry call trace */ if (on) { - if (erts_bif_trace_flags[i] & BIF_TRACE_AS_META) { - ASSERT(ExportIsBuiltIn(bif_export[i])); - erts_clear_mtrace_bif - ((BeamInstr *)bif_export[i]->code + 3); - erts_bif_trace_flags[i] &= ~BIF_TRACE_AS_META; - } - set_trace_bif(i, match_prog_set); - erts_bif_trace_flags[i] &= ~BIF_TRACE_AS_LOCAL; - erts_bif_trace_flags[i] |= BIF_TRACE_AS_GLOBAL; - setup_bif_trace(i); + erts_clear_call_trace_bif(pc, 1); + erts_clear_mtrace_bif(pc); + erts_set_call_trace_bif(pc, match_prog_set, 0); } else { /* off */ - if (erts_bif_trace_flags[i] & BIF_TRACE_AS_GLOBAL) { - clear_trace_bif(i); - erts_bif_trace_flags[i] &= ~BIF_TRACE_AS_GLOBAL; - } - if (! erts_bif_trace_flags[i]) { - reset_bif_trace(i); - } + erts_clear_call_trace_bif(pc, 0); } matches++; } else { /* Breakpoint call trace */ @@ -1411,52 +1475,33 @@ erts_set_trace_pattern(Eterm* mfa, int specified, if (on) { if (flags.local) { - set_trace_bif(i, match_prog_set); - erts_bif_trace_flags[i] |= BIF_TRACE_AS_LOCAL; - erts_bif_trace_flags[i] &= ~BIF_TRACE_AS_GLOBAL; + erts_clear_call_trace_bif(pc, 0); + erts_set_call_trace_bif(pc, match_prog_set, 1); m = 1; } if (flags.meta) { - erts_set_mtrace_bif - ((BeamInstr *)bif_export[i]->code + 3, - meta_match_prog_set, meta_tracer_pid); - erts_bif_trace_flags[i] |= BIF_TRACE_AS_META; - erts_bif_trace_flags[i] &= ~BIF_TRACE_AS_GLOBAL; + erts_set_mtrace_bif(pc, meta_match_prog_set, + meta_tracer_pid); m = 1; } if (flags.call_time) { - erts_set_time_trace_bif(bif_export[i]->code + 3, on); + erts_set_time_trace_bif(pc, on); /* I don't want to remove any other tracers */ - erts_bif_trace_flags[i] |= BIF_TRACE_AS_CALL_TIME; m = 1; } - if (erts_bif_trace_flags[i]) { - setup_bif_trace(i); - } } else { /* off */ if (flags.local) { - if (erts_bif_trace_flags[i] & BIF_TRACE_AS_LOCAL) { - clear_trace_bif(i); - erts_bif_trace_flags[i] &= ~BIF_TRACE_AS_LOCAL; - } + erts_clear_call_trace_bif(pc, 1); m = 1; } if (flags.meta) { - if (erts_bif_trace_flags[i] & BIF_TRACE_AS_META) { - erts_clear_mtrace_bif - ((BeamInstr *)bif_export[i]->code + 3); - erts_bif_trace_flags[i] &= ~BIF_TRACE_AS_META; - } + erts_clear_mtrace_bif(pc); m = 1; } if (flags.call_time) { - erts_clear_time_trace_bif(bif_export[i]->code + 3); - erts_bif_trace_flags[i] &= ~BIF_TRACE_AS_CALL_TIME; + erts_clear_time_trace_bif(pc); m = 1; } - if (! erts_bif_trace_flags[i]) { - reset_bif_trace(i); - } } matches += m; } @@ -1466,176 +1511,241 @@ erts_set_trace_pattern(Eterm* mfa, int specified, /* ** So, now for breakpoint tracing */ + erts_bp_match_functions(&finish_bp.f, mfa, specified); if (on) { if (! flags.breakpoint) { - erts_clear_trace_break(mfa, specified); - erts_clear_mtrace_break(mfa, specified); - erts_clear_count_break(mfa, specified); - erts_clear_time_break(mfa, specified); + erts_clear_all_breaks(&finish_bp.f); } else { - int m = 0; if (flags.local) { - m = erts_set_trace_break(mfa, specified, match_prog_set, - am_true); + erts_set_trace_break(&finish_bp.f, match_prog_set); } if (flags.meta) { - m = erts_set_mtrace_break(mfa, specified, meta_match_prog_set, - meta_tracer_pid); + erts_set_mtrace_break(&finish_bp.f, meta_match_prog_set, + meta_tracer_pid); } if (flags.call_count) { - m = erts_set_count_break(mfa, specified, on); + erts_set_count_break(&finish_bp.f, on); } if (flags.call_time) { - m = erts_set_time_break(mfa, specified, on); + erts_set_time_break(&finish_bp.f, on); } - /* All assignments to 'm' above should give the same value, - * so just use the last */ - matches += m; } } else { - int m = 0; if (flags.local) { - m = erts_clear_trace_break(mfa, specified); + erts_clear_trace_break(&finish_bp.f); } if (flags.meta) { - m = erts_clear_mtrace_break(mfa, specified); + erts_clear_mtrace_break(&finish_bp.f); } if (flags.call_count) { - m = erts_clear_count_break(mfa, specified); + erts_clear_count_break(&finish_bp.f); } if (flags.call_time) { - m = erts_clear_time_break(mfa, specified); + erts_clear_time_break(&finish_bp.f); } - /* All assignments to 'm' above should give the same value, - * so just use the last */ - matches += m; } + finish_bp.current = 0; + finish_bp.install = on; + finish_bp.local = flags.breakpoint; + +#ifdef ERTS_SMP + if (is_blocking) { + ERTS_SMP_LC_ASSERT(erts_smp_thr_progress_is_blocking()); +#endif + while (erts_finish_breakpointing()) { + /* Empty loop body */ + } +#ifdef ERTS_SMP + finish_bp.current = -1; + } +#endif + + if (flags.breakpoint) { + matches += finish_bp.f.matched; + } else { + matches += finish_bp.e.matched; + } return matches; } -/* - * Setup function tracing for the given exported function. - * - * Return Value: 1 if entry refers to a BIF or loaded function, - * 0 if the entry refers to a function not loaded. - */ - -static int -setup_func_trace(Export* ep, void* match_prog) +int +erts_finish_breakpointing(void) { - if (ep->address == ep->code+3) { - if (ep->code[3] == (BeamInstr) em_call_error_handler) { - return 0; - } else if (ep->code[3] == (BeamInstr) em_call_traced_function) { - MatchSetUnref(ep->match_prog_set); - ep->match_prog_set = match_prog; - MatchSetRef(ep->match_prog_set); - return 1; - } else { - /* - * We ignore apply/3 and anything else. - */ - return 0; - } - } - + ERTS_SMP_LC_ASSERT(erts_has_code_write_permission()); + /* - * Currently no trace support for native code. + * Memory barriers will be issued for all processes *before* + * each of the stages below. (Unless the other schedulers + * are blocked, in which case memory barriers will be issued + * when they are awaken.) */ - if (erts_is_native_break(ep->address)) { + switch (finish_bp.current++) { + case 0: + /* + * At this point, in all functions that are to be breakpointed, + * a pointer to a GenericBp struct has already been added, + * + * Insert the new breakpoints (if any) into the + * code. Different schedulers may see breakpoint instruction + * at different times, but it does not matter since the newly + * added breakpoints are disabled. + */ + if (finish_bp.install) { + if (finish_bp.local) { + erts_install_breakpoints(&finish_bp.f); + } else { + install_exp_breakpoints(&finish_bp.e); + } + } + setup_bif_trace(); + return 1; + case 1: + /* + * Switch index for the breakpoint data, activating the staged + * data. (Depending on the changes in the breakpoint data, + * that could either activate breakpoints or disable + * breakpoints.) + */ + erts_commit_staged_bp(); + return 1; + case 2: + /* + * Remove breakpoints instructions for disabled breakpoints + * (if any). + */ + if (finish_bp.install) { + if (finish_bp.local) { + uninstall_exp_breakpoints(&finish_bp.e); + } else { + erts_uninstall_breakpoints(&finish_bp.f); + } + } else { + if (finish_bp.local) { + erts_uninstall_breakpoints(&finish_bp.f); + } else { + uninstall_exp_breakpoints(&finish_bp.e); + } + } + reset_bif_trace(); + return 1; + case 3: + /* + * Now all breakpoints have either been inserted or removed. + * For all updated breakpoints, copy the active breakpoint + * data to the staged breakpoint data to make them equal + * (simplifying for the next time breakpoints are to be + * updated). If any breakpoints have been totally disabled, + * deallocate the GenericBp structs for them. + */ + erts_consolidate_bif_bp_data(); + clean_export_entries(&finish_bp.e); + erts_consolidate_bp_data(&finish_bp.e, 0); + erts_consolidate_bp_data(&finish_bp.f, 1); + erts_bp_free_matched_functions(&finish_bp.e); + erts_bp_free_matched_functions(&finish_bp.f); return 0; + default: + ASSERT(0); } - - ep->code[3] = (BeamInstr) em_call_traced_function; - ep->code[4] = (BeamInstr) ep->address; - ep->address = ep->code+3; - ep->match_prog_set = match_prog; - MatchSetRef(ep->match_prog_set); - return 1; + return 0; } -static void setup_bif_trace(int bif_index) { - Export *ep = bif_export[bif_index]; - - ASSERT(ExportIsBuiltIn(ep)); - ASSERT(ep->code[4]); - ep->code[4] = (BeamInstr) bif_table[bif_index].traced; -} +static void +install_exp_breakpoints(BpFunctions* f) +{ + const ErtsCodeIndex code_ix = erts_active_code_ix(); + BpFunction* fp = f->matching; + Uint ne = f->matched; + Uint i; + Uint offset = offsetof(Export, code) + 3*sizeof(BeamInstr); -static void set_trace_bif(int bif_index, void* match_prog) { - Export *ep = bif_export[bif_index]; - -#ifdef HARDDEBUG - erts_fprintf(stderr, "set_trace_bif: %T:%T/%bpu\n", - ep->code[0], ep->code[1], ep->code[2]); -#endif - ASSERT(ExportIsBuiltIn(ep)); - MatchSetUnref(ep->match_prog_set); - ep->match_prog_set = match_prog; - MatchSetRef(ep->match_prog_set); -} + for (i = 0; i < ne; i++) { + BeamInstr* pc = fp[i].pc; + Export* ep = (Export *) (((char *)pc)-offset); -/* - * Reset function tracing for the given exported function. - * - * Return Value: 1 if entry refers to a BIF or loaded function, - * 0 if the entry refers to a function not loaded. - */ + ep->addressv[code_ix] = pc; + } +} -static int -reset_func_trace(Export* ep) +static void +uninstall_exp_breakpoints(BpFunctions* f) { - if (ep->address == ep->code+3) { - if (ep->code[3] == (BeamInstr) em_call_error_handler) { - return 0; - } else if (ep->code[3] == (BeamInstr) em_call_traced_function) { - ep->address = (Uint *) ep->code[4]; - MatchSetUnref(ep->match_prog_set); - ep->match_prog_set = NULL; - return 1; - } else { - /* - * We ignore apply/3 and anything else. - */ - return 0; + const ErtsCodeIndex code_ix = erts_active_code_ix(); + BpFunction* fp = f->matching; + Uint ne = f->matched; + Uint i; + Uint offset = offsetof(Export, code) + 3*sizeof(BeamInstr); + + for (i = 0; i < ne; i++) { + BeamInstr* pc = fp[i].pc; + Export* ep = (Export *) (((char *)pc)-offset); + + if (ep->addressv[code_ix] != pc) { + continue; } + ASSERT(*pc == (BeamInstr) BeamOp(op_jump_f)); + ep->addressv[code_ix] = (BeamInstr *) ep->code[4]; } - - /* - * Currently no trace support for native code. - */ - if (erts_is_native_break(ep->address)) { - return 0; - } - - /* - * Nothing to do, but the export entry matches. - */ +} + +static void +clean_export_entries(BpFunctions* f) +{ + const ErtsCodeIndex code_ix = erts_active_code_ix(); + BpFunction* fp = f->matching; + Uint ne = f->matched; + Uint i; + Uint offset = offsetof(Export, code) + 3*sizeof(BeamInstr); - return 1; + for (i = 0; i < ne; i++) { + BeamInstr* pc = fp[i].pc; + Export* ep = (Export *) (((char *)pc)-offset); + + if (ep->addressv[code_ix] == pc) { + continue; + } + if (*pc == (BeamInstr) BeamOp(op_jump_f)) { + ep->code[3] = (BeamInstr) 0; + ep->code[4] = (BeamInstr) 0; + } + } } -static void reset_bif_trace(int bif_index) { - Export *ep = bif_export[bif_index]; - - ASSERT(ExportIsBuiltIn(ep)); - ASSERT(ep->code[4]); - ASSERT(! ep->match_prog_set); - ASSERT(! erts_is_mtrace_break((BeamInstr *)ep->code+3, NULL, NULL)); - ep->code[4] = (BeamInstr) bif_table[bif_index].f; +static void +setup_bif_trace(void) +{ + int i; + + for (i = 0; i < BIF_SIZE; ++i) { + Export *ep = bif_export[i]; + GenericBp* g = (GenericBp *) ep->fake_op_func_info_for_hipe[1]; + if (g) { + if (ExportIsBuiltIn(ep)) { + ASSERT(ep->code[4]); + ep->code[4] = (BeamInstr) bif_table[i].traced; + } + } + } } -static void clear_trace_bif(int bif_index) { - Export *ep = bif_export[bif_index]; - -#ifdef HARDDEBUG - erts_fprintf(stderr, "clear_trace_bif: %T:%T/%bpu\n", - ep->code[0], ep->code[1], ep->code[2]); -#endif - ASSERT(ExportIsBuiltIn(ep)); - MatchSetUnref(ep->match_prog_set); - ep->match_prog_set = NULL; +static void +reset_bif_trace(void) +{ + int i; + ErtsBpIndex active = erts_active_bp_ix(); + + for (i = 0; i < BIF_SIZE; ++i) { + Export *ep = bif_export[i]; + BeamInstr* pc = ep->code+3; + GenericBp* g = (GenericBp *) pc[-4]; + if (g && g->data[active].flags == 0) { + if (ExportIsBuiltIn(ep)) { + ASSERT(ep->code[4]); + ep->code[4] = (BeamInstr) bif_table[i].f; + } + } + } } /* @@ -1776,7 +1886,7 @@ new_seq_trace_token(Process* p) SEQ_TRACE_TOKEN(p) = TUPLE5(hp, make_small(0), /* Flags */ make_small(0), /* Label */ make_small(0), /* Serial */ - p->id, /* Internal pid */ /* From */ + p->common.id, /* Internal pid */ /* From */ make_small(p->seq_trace_lastcnt)); } } @@ -1902,6 +2012,7 @@ void erts_system_monitor_clear(Process *c_p) { #endif erts_set_system_monitor(NIL); erts_system_monitor_long_gc = 0; + erts_system_monitor_long_schedule = 0; erts_system_monitor_large_heap = 0; erts_system_monitor_flags.busy_port = 0; erts_system_monitor_flags.busy_dist_port = 0; @@ -1926,12 +2037,17 @@ static Eterm system_monitor_get(Process *p) Uint hsz = 3 + (erts_system_monitor_flags.busy_dist_port ? 2 : 0) + (erts_system_monitor_flags.busy_port ? 2 : 0); Eterm long_gc = NIL; + Eterm long_schedule = NIL; Eterm large_heap = NIL; if (erts_system_monitor_long_gc != 0) { hsz += 2+3; (void) erts_bld_uint(NULL, &hsz, erts_system_monitor_long_gc); } + if (erts_system_monitor_long_schedule != 0) { + hsz += 2+3; + (void) erts_bld_uint(NULL, &hsz, erts_system_monitor_long_schedule); + } if (erts_system_monitor_large_heap != 0) { hsz += 2+3; (void) erts_bld_uint(NULL, &hsz, erts_system_monitor_large_heap); @@ -1941,6 +2057,10 @@ static Eterm system_monitor_get(Process *p) if (erts_system_monitor_long_gc != 0) { long_gc = erts_bld_uint(&hp, NULL, erts_system_monitor_long_gc); } + if (erts_system_monitor_long_schedule != 0) { + long_schedule = erts_bld_uint(&hp, NULL, + erts_system_monitor_long_schedule); + } if (erts_system_monitor_large_heap != 0) { large_heap = erts_bld_uint(&hp, NULL, erts_system_monitor_large_heap); } @@ -1949,6 +2069,10 @@ static Eterm system_monitor_get(Process *p) Eterm t = TUPLE2(hp, am_long_gc, long_gc); hp += 3; res = CONS(hp, t, res); hp += 2; } + if (long_schedule != NIL) { + Eterm t = TUPLE2(hp, am_long_schedule, long_schedule); hp += 3; + res = CONS(hp, t, res); hp += 2; + } if (large_heap != NIL) { Eterm t = TUPLE2(hp, am_large_heap, large_heap); hp += 3; res = CONS(hp, t, res); hp += 2; @@ -2003,7 +2127,7 @@ system_monitor(Process *p, Eterm monitor_pid, Eterm list) } if (is_not_list(list)) goto error; else { - Uint long_gc, large_heap; + Uint long_gc, long_schedule, large_heap; int busy_port, busy_dist_port; system_blocked = 1; @@ -2013,7 +2137,8 @@ system_monitor(Process *p, Eterm monitor_pid, Eterm list) if (!erts_pid2proc(p, ERTS_PROC_LOCK_MAIN, monitor_pid, 0)) goto error; - for (long_gc = 0, large_heap = 0, busy_port = 0, busy_dist_port = 0; + for (long_gc = 0, long_schedule = 0, large_heap = 0, + busy_port = 0, busy_dist_port = 0; is_list(list); list = CDR(list_val(list))) { Eterm t = CAR(list_val(list)); @@ -2023,6 +2148,9 @@ system_monitor(Process *p, Eterm monitor_pid, Eterm list) if (tp[1] == am_long_gc) { if (! term_to_Uint(tp[2], &long_gc)) goto error; if (long_gc < 1) long_gc = 1; + } else if (tp[1] == am_long_schedule) { + if (! term_to_Uint(tp[2], &long_schedule)) goto error; + if (long_schedule < 1) long_schedule = 1; } else if (tp[1] == am_large_heap) { if (! term_to_Uint(tp[2], &large_heap)) goto error; if (large_heap < 16384) large_heap = 16384; @@ -2038,6 +2166,7 @@ system_monitor(Process *p, Eterm monitor_pid, Eterm list) prev = system_monitor_get(p); erts_set_system_monitor(monitor_pid); erts_system_monitor_long_gc = long_gc; + erts_system_monitor_long_schedule = long_schedule; erts_system_monitor_large_heap = large_heap; erts_system_monitor_flags.busy_port = !!busy_port; erts_system_monitor_flags.busy_dist_port = !!busy_dist_port; @@ -2142,13 +2271,15 @@ BIF_RETTYPE system_profile_2(BIF_ALIST_2) /* Check if valid process, no locks are taken */ if (is_internal_pid(profiler)) { - if (internal_pid_index(profiler) >= erts_max_processes) goto error; - profiler_p = process_tab[internal_pid_index(profiler)]; - if (INVALID_PID(profiler_p, profiler)) goto error; + profiler_p = erts_proc_lookup(profiler); + if (!profiler_p) + goto error; } else if (is_internal_port(profiler)) { - if (internal_port_index(profiler) >= erts_max_ports) goto error; - profiler_port = &erts_port[internal_port_index(profiler)]; - if (INVALID_TRACER_PORT(profiler_port, profiler)) goto error; + profiler_port = (erts_port_lookup( + profiler, + ERTS_PORT_SFLGS_INVALID_TRACER_LOOKUP)); + if (!profiler_port) + goto error; } else { goto error; } @@ -2212,8 +2343,7 @@ trace_delivered_1(BIF_ALIST_1) p = NULL; } else if (! (p = erts_pid2proc(BIF_P, ERTS_PROC_LOCK_MAIN, BIF_ARG_1, ERTS_PROC_LOCKS_ALL))) { - if (is_not_internal_pid(BIF_ARG_1) - || internal_pid_index(BIF_ARG_1) >= erts_max_processes) { + if (is_not_internal_pid(BIF_ARG_1)) { BIF_ERROR(BIF_P, BADARG); } } @@ -2232,7 +2362,7 @@ trace_delivered_1(BIF_ALIST_1) msg = TUPLE3(hp, AM_trace_delivered, BIF_ARG_1, msg_ref); #ifdef ERTS_SMP - erts_send_sys_msg_proc(BIF_P->id, BIF_P->id, msg, bp); + erts_send_sys_msg_proc(BIF_P->common.id, BIF_P->common.id, msg, bp); if (p) erts_smp_proc_unlock(p, (BIF_P == p diff --git a/erts/emulator/beam/erl_binary.h b/erts/emulator/beam/erl_binary.h index 506c4813fa..06dfeb1260 100644 --- a/erts/emulator/beam/erl_binary.h +++ b/erts/emulator/beam/erl_binary.h @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 2000-2011. All Rights Reserved. + * Copyright Ericsson AB 2000-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -153,7 +153,7 @@ do { \ #define binary_bytes(Bin) \ (*binary_val(Bin) == HEADER_PROC_BIN ? \ ((ProcBin *) binary_val(Bin))->bytes : \ - (ASSERT_EXPR(thing_subtag(*binary_val(Bin)) == HEAP_BINARY_SUBTAG), \ + (ASSERT(thing_subtag(*binary_val(Bin)) == HEAP_BINARY_SUBTAG), \ (byte *)(&(((ErlHeapBin *) binary_val(Bin))->data)))) void erts_init_binary(void); @@ -166,7 +166,7 @@ Eterm erts_bin_bytes_to_list(Eterm previous, Eterm* hp, byte* bytes, Uint size, * Common implementation for erlang:list_to_binary/1 and binary:list_to_bin/1 */ -BIF_RETTYPE erts_list_to_binary_bif(Process *p, Eterm arg); +BIF_RETTYPE erts_list_to_binary_bif(Process *p, Eterm arg, Export *bif); BIF_RETTYPE erts_gc_binary_part(Process *p, Eterm *reg, Eterm live, int range_is_tuple); BIF_RETTYPE erts_binary_part(Process *p, Eterm binary, Eterm epos, Eterm elen); @@ -183,7 +183,7 @@ BIF_RETTYPE erts_binary_part(Process *p, Eterm binary, Eterm epos, Eterm elen); #endif #define ERTS_CHK_BIN_ALIGNMENT(B) \ - do { ASSERT(!(B) || (((UWord) &((Binary *)(B))->orig_bytes[0]) & ERTS_BIN_ALIGNMENT_MASK) == ((UWord) 0)) } while(0) + do { ASSERT(!(B) || (((UWord) &((Binary *)(B))->orig_bytes[0]) & ERTS_BIN_ALIGNMENT_MASK) == ((UWord) 0)); } while(0) ERTS_GLB_INLINE byte* erts_get_aligned_binary_bytes(Eterm bin, byte** base_ptr); ERTS_GLB_INLINE void erts_free_aligned_binary_bytes(byte* buf); @@ -225,7 +225,7 @@ erts_free_aligned_binary_bytes(byte* buf) ** These extra bytes where earlier (< R13B04) added by an alignment-bug ** in this code. Do we dare remove this in some major release (R14?) maybe? */ -#ifdef DEBUG +#if defined(DEBUG) || defined(VALGRIND) # define CHICKEN_PAD 0 #else # define CHICKEN_PAD (sizeof(void*) - 1) @@ -236,6 +236,8 @@ erts_bin_drv_alloc_fnf(Uint size) { Uint bsize = ERTS_SIZEOF_Binary(size) + CHICKEN_PAD; void *res; + if (bsize < size) /* overflow */ + return NULL; res = erts_alloc_fnf(ERTS_ALC_T_DRV_BINARY, bsize); ERTS_CHK_BIN_ALIGNMENT(res); return (Binary *) res; @@ -246,6 +248,8 @@ erts_bin_drv_alloc(Uint size) { Uint bsize = ERTS_SIZEOF_Binary(size) + CHICKEN_PAD; void *res; + if (bsize < size) /* overflow */ + erts_alloc_enomem(ERTS_ALC_T_DRV_BINARY, size); res = erts_alloc(ERTS_ALC_T_DRV_BINARY, bsize); ERTS_CHK_BIN_ALIGNMENT(res); return (Binary *) res; @@ -257,6 +261,8 @@ erts_bin_nrml_alloc(Uint size) { Uint bsize = ERTS_SIZEOF_Binary(size) + CHICKEN_PAD; void *res; + if (bsize < size) /* overflow */ + erts_alloc_enomem(ERTS_ALC_T_BINARY, size); res = erts_alloc(ERTS_ALC_T_BINARY, bsize); ERTS_CHK_BIN_ALIGNMENT(res); return (Binary *) res; @@ -267,11 +273,12 @@ erts_bin_realloc_fnf(Binary *bp, Uint size) { Binary *nbp; Uint bsize = ERTS_SIZEOF_Binary(size) + CHICKEN_PAD; + ErtsAlcType_t type = (bp->flags & BIN_FLAG_DRV) ? ERTS_ALC_T_DRV_BINARY + : ERTS_ALC_T_BINARY; ASSERT((bp->flags & BIN_FLAG_MAGIC) == 0); - if (bp->flags & BIN_FLAG_DRV) - nbp = erts_realloc_fnf(ERTS_ALC_T_DRV_BINARY, (void *) bp, bsize); - else - nbp = erts_realloc_fnf(ERTS_ALC_T_BINARY, (void *) bp, bsize); + if (bsize < size) /* overflow */ + return NULL; + nbp = erts_realloc_fnf(type, (void *) bp, bsize); ERTS_CHK_BIN_ALIGNMENT(nbp); return nbp; } @@ -281,17 +288,14 @@ erts_bin_realloc(Binary *bp, Uint size) { Binary *nbp; Uint bsize = ERTS_SIZEOF_Binary(size) + CHICKEN_PAD; + ErtsAlcType_t type = (bp->flags & BIN_FLAG_DRV) ? ERTS_ALC_T_DRV_BINARY + : ERTS_ALC_T_BINARY; ASSERT((bp->flags & BIN_FLAG_MAGIC) == 0); - if (bp->flags & BIN_FLAG_DRV) - nbp = erts_realloc_fnf(ERTS_ALC_T_DRV_BINARY, (void *) bp, bsize); - else - nbp = erts_realloc_fnf(ERTS_ALC_T_BINARY, (void *) bp, bsize); + if (bsize < size) /* overflow */ + erts_realloc_enomem(type, bp, size); + nbp = erts_realloc_fnf(type, (void *) bp, bsize); if (!nbp) - erts_realloc_n_enomem(ERTS_ALC_T2N(bp->flags & BIN_FLAG_DRV - ? ERTS_ALC_T_DRV_BINARY - : ERTS_ALC_T_BINARY), - bp, - bsize); + erts_realloc_enomem(type, bp, bsize); ERTS_CHK_BIN_ALIGNMENT(nbp); return nbp; } @@ -312,6 +316,7 @@ erts_create_magic_binary(Uint size, void (*destructor)(Binary *)) { Uint bsize = ERTS_MAGIC_BIN_SIZE(size); Binary* bptr = erts_alloc_fnf(ERTS_ALC_T_BINARY, bsize); + ASSERT(bsize > size); if (!bptr) erts_alloc_n_enomem(ERTS_ALC_T2N(ERTS_ALC_T_BINARY), bsize); ERTS_CHK_BIN_ALIGNMENT(bptr); diff --git a/erts/emulator/beam/erl_bits.c b/erts/emulator/beam/erl_bits.c index 3753b618e1..73765772c8 100644 --- a/erts/emulator/beam/erl_bits.c +++ b/erts/emulator/beam/erl_bits.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 1999-2012. All Rights Reserved. + * Copyright Ericsson AB 1999-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -484,8 +484,16 @@ erts_bs_get_float_2(Process *p, Uint num_bits, unsigned flags, ErlBinMatchBuffer ERTS_FP_ERROR_THOROUGH(p, f32, return THE_NON_VALUE); f.fd = f32; } else { +#ifdef DOUBLE_MIDDLE_ENDIAN + FloatDef ftmp; + ftmp.fd = f64; + f.fw[0] = ftmp.fw[1]; + f.fw[1] = ftmp.fw[0]; + ERTS_FP_ERROR_THOROUGH(p, f.fd, return THE_NON_VALUE); +#else ERTS_FP_ERROR_THOROUGH(p, f64, return THE_NON_VALUE); f.fd = f64; +#endif } mb->offset += num_bits; hp = HeapOnlyAlloc(p, FLOAT_SIZE_OBJECT); @@ -1014,8 +1022,13 @@ erts_new_bs_put_float(Process *c_p, Eterm arg, Uint num_bits, int flags) #endif } else if (is_small(arg)) { u.f64 = (double) signed_val(arg); +#ifdef DOUBLE_MIDDLE_ENDIAN + a = u.i32[1]; + b = u.i32[0]; +#else a = u.i32[0]; b = u.i32[1]; +#endif } else if (is_big(arg)) { if (big_to_double(arg, &u.f64) < 0) { return 0; @@ -1118,21 +1131,42 @@ erts_new_bs_put_float(Process *c_p, Eterm arg, Uint num_bits, int flags) byte *bptr; double f64; float f32; +#ifdef DOUBLE_MIDDLE_ENDIAN + FloatDef fbuf, ftmp; +#endif if (num_bits == 64) { if (is_float(arg)) { +#ifdef DOUBLE_MIDDLE_ENDIAN + FloatDef *fdp = (FloatDef*)(float_val(arg) + 1); + ftmp = *fdp; +#else bptr = (byte *) (float_val(arg) + 1); +#endif } else if (is_small(arg)) { f64 = (double) signed_val(arg); +#ifdef DOUBLE_MIDDLE_ENDIAN + ftmp.fd = f64; +#else bptr = (byte *) &f64; +#endif } else if (is_big(arg)) { if (big_to_double(arg, &f64) < 0) { return 0; } +#ifdef DOUBLE_MIDDLE_ENDIAN + ftmp.fd = f64; +#else bptr = (byte *) &f64; +#endif } else { return 0; } +#ifdef DOUBLE_MIDDLE_ENDIAN + fbuf.fw[0] = ftmp.fw[1]; + fbuf.fw[1] = ftmp.fw[0]; + bptr = fbuf.fb; +#endif } else if (num_bits == 32) { if (is_float(arg)) { FloatDef f; @@ -1457,7 +1491,7 @@ erts_bs_private_append(Process* p, Eterm bin, Eterm build_size_term, Uint unit) bptr->flags = 0; bptr->orig_size = new_size; erts_refc_init(&bptr->refc, 1); - sys_memcpy(bptr->orig_bytes, binp->orig_bytes, pb->size); + sys_memcpy(bptr->orig_bytes, binp->orig_bytes, binp->orig_size); pb->flags |= PB_IS_WRITABLE | PB_ACTIVE_WRITER; pb->val = bptr; pb->bytes = (byte *) bptr->orig_bytes; @@ -1776,6 +1810,11 @@ erts_cmp_bits(byte* a_ptr, size_t a_offs, byte* b_ptr, size_t b_offs, size_t siz Uint rshift; int cmp; + ASSERT(a_offs < 8 && b_offs < 8); + + if (size == 0) + return 0; + if (((a_offs | b_offs | size) & 7) == 0) { int byte_size = size >> 3; return sys_memcmp(a_ptr, b_ptr, byte_size); @@ -1784,58 +1823,72 @@ erts_cmp_bits(byte* a_ptr, size_t a_offs, byte* b_ptr, size_t b_offs, size_t siz /* Compare bit by bit until a_ptr is aligned on byte boundary */ a = *a_ptr++; b = *b_ptr++; - while (size > 0) { - a_bit = get_bit(a, a_offs); - b_bit = get_bit(b, b_offs); - if ((cmp = (a_bit-b_bit)) != 0) { - return cmp; - } - size--; - b_offs++; - if (b_offs == 8) { - b_offs = 0; - b = *b_ptr++; - } - a_offs++; - if (a_offs == 8) { - a_offs = 0; - a = *a_ptr++; - break; + if (a_offs) { + for (;;) { + a_bit = get_bit(a, a_offs); + b_bit = get_bit(b, b_offs); + if ((cmp = (a_bit-b_bit)) != 0) { + return cmp; + } + if (--size == 0) + return 0; + + b_offs++; + if (b_offs == 8) { + b_offs = 0; + b = *b_ptr++; + } + a_offs++; + if (a_offs == 8) { + a_offs = 0; + a = *a_ptr++; + break; + } } } /* Compare byte by byte as long as at least 8 bits remain */ - lshift = b_offs; - rshift = 8 - lshift; - while (size >= 8) { - byte b_cmp = (b << lshift); - b = *b_ptr++; - b_cmp |= b >> rshift; - if ((cmp = (a - b_cmp)) != 0) { - return cmp; - } + if (size >= 8) { + lshift = b_offs; + rshift = 8 - lshift; + for (;;) { + byte b_cmp = (b << lshift); + b = *b_ptr++; + b_cmp |= b >> rshift; + if ((cmp = (a - b_cmp)) != 0) { + return cmp; + } + size -= 8; + if (size < 8) + break; + a = *a_ptr++; + } + + if (size == 0) + return 0; a = *a_ptr++; - size -= 8; } /* Compare the remaining bits bit by bit */ - while (size > 0) { - a_bit = get_bit(a, a_offs); - b_bit = get_bit(b, b_offs); - if ((cmp = (a_bit-b_bit)) != 0) { - return cmp; - } - a_offs++; - if (a_offs == 8) { - a_offs = 0; - a = *a_ptr++; - } - b_offs++; - if (b_offs == 8) { - b_offs = 0; - b = *b_ptr++; - } - size--; + if (size > 0) { + for (;;) { + a_bit = get_bit(a, a_offs); + b_bit = get_bit(b, b_offs); + if ((cmp = (a_bit-b_bit)) != 0) { + return cmp; + } + if (--size == 0) + return 0; + + a_offs++; + ASSERT(a_offs < 8); + + b_offs++; + if (b_offs == 8) { + b_offs = 0; + b = *b_ptr++; + } + } } return 0; diff --git a/erts/emulator/beam/erl_cpu_topology.c b/erts/emulator/beam/erl_cpu_topology.c index fe3693d0ca..f594cb9392 100644 --- a/erts/emulator/beam/erl_cpu_topology.c +++ b/erts/emulator/beam/erl_cpu_topology.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 2010-2011. All Rights Reserved. + * Copyright Ericsson AB 2010-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -34,7 +34,7 @@ #include "bif.h" #include "erl_cpu_topology.h" -#define ERTS_MAX_READER_GROUPS 8 +#define ERTS_MAX_READER_GROUPS 64 /* * Cpu topology hierarchy. @@ -486,7 +486,7 @@ erts_sched_check_cpu_bind_post_suspend(ErtsSchedulerData *esdp) erts_thr_set_main_status(1, (int) esdp->no); /* Make sure we check if we should bind to a cpu or not... */ - esdp->run_queue->flags |= ERTS_RUNQ_FLG_CHK_CPU_BIND; + (void) ERTS_RUNQ_FLGS_SET(esdp->run_queue, ERTS_RUNQ_FLG_CHK_CPU_BIND); } #endif @@ -498,9 +498,6 @@ erts_sched_check_cpu_bind(ErtsSchedulerData *esdp) erts_cpu_groups_map_t *cgm; erts_cpu_groups_callback_list_t *cgcl; erts_cpu_groups_callback_call_t *cgcc; -#ifdef ERTS_SMP - esdp->run_queue->flags &= ~ERTS_RUNQ_FLG_CHK_CPU_BIND; -#endif erts_smp_runq_unlock(esdp->run_queue); erts_smp_rwmtx_rwlock(&cpuinfo_rwmtx); cpu_id = scheduler2cpu_map[esdp->no].bind_id; @@ -623,30 +620,38 @@ write_schedulers_bind_change(erts_cpu_topology_t *cpudata, int size) int erts_init_scheduler_bind_type_string(char *how) { + ErtsCpuBindOrder order; + if (sys_strcmp(how, "u") == 0) - cpu_bind_order = ERTS_CPU_BIND_NONE; - else if (erts_bind_to_cpu(cpuinfo, -1) == -ENOTSUP) - return ERTS_INIT_SCHED_BIND_TYPE_NOT_SUPPORTED; - else if (!system_cpudata && !user_cpudata) - return ERTS_INIT_SCHED_BIND_TYPE_ERROR_NO_CPU_TOPOLOGY; + order = ERTS_CPU_BIND_NONE; else if (sys_strcmp(how, "db") == 0) - cpu_bind_order = ERTS_CPU_BIND_DEFAULT_BIND; + order = ERTS_CPU_BIND_DEFAULT_BIND; else if (sys_strcmp(how, "s") == 0) - cpu_bind_order = ERTS_CPU_BIND_SPREAD; + order = ERTS_CPU_BIND_SPREAD; else if (sys_strcmp(how, "ps") == 0) - cpu_bind_order = ERTS_CPU_BIND_PROCESSOR_SPREAD; + order = ERTS_CPU_BIND_PROCESSOR_SPREAD; else if (sys_strcmp(how, "ts") == 0) - cpu_bind_order = ERTS_CPU_BIND_THREAD_SPREAD; + order = ERTS_CPU_BIND_THREAD_SPREAD; else if (sys_strcmp(how, "tnnps") == 0) - cpu_bind_order = ERTS_CPU_BIND_THREAD_NO_NODE_PROCESSOR_SPREAD; + order = ERTS_CPU_BIND_THREAD_NO_NODE_PROCESSOR_SPREAD; else if (sys_strcmp(how, "nnps") == 0) - cpu_bind_order = ERTS_CPU_BIND_NO_NODE_PROCESSOR_SPREAD; + order = ERTS_CPU_BIND_NO_NODE_PROCESSOR_SPREAD; else if (sys_strcmp(how, "nnts") == 0) - cpu_bind_order = ERTS_CPU_BIND_NO_NODE_THREAD_SPREAD; + order = ERTS_CPU_BIND_NO_NODE_THREAD_SPREAD; else if (sys_strcmp(how, "ns") == 0) - cpu_bind_order = ERTS_CPU_BIND_NO_SPREAD; + order = ERTS_CPU_BIND_NO_SPREAD; else - return ERTS_INIT_SCHED_BIND_TYPE_ERROR_NO_BAD_TYPE; + return ERTS_INIT_SCHED_BIND_TYPE_ERROR_BAD_TYPE; + + if (order != ERTS_CPU_BIND_NONE) { + if (erts_bind_to_cpu(cpuinfo, -1) == -ENOTSUP) + return ERTS_INIT_SCHED_BIND_TYPE_NOT_SUPPORTED; + else if (!system_cpudata && !user_cpudata) + return ERTS_INIT_SCHED_BIND_TYPE_ERROR_NO_CPU_TOPOLOGY; + } + + cpu_bind_order = order; + return ERTS_INIT_SCHED_BIND_TYPE_SUCCESS; } @@ -1694,7 +1699,7 @@ erts_early_init_cpu_topology(int no_schedulers, } max_main_threads = erts_get_cpu_configured(cpuinfo); - if (max_main_threads > no_schedulers) + if (max_main_threads > no_schedulers || max_main_threads < 0) max_main_threads = no_schedulers; *max_main_threads_p = max_main_threads; diff --git a/erts/emulator/beam/erl_cpu_topology.h b/erts/emulator/beam/erl_cpu_topology.h index c5a9520b61..b502258dae 100644 --- a/erts/emulator/beam/erl_cpu_topology.h +++ b/erts/emulator/beam/erl_cpu_topology.h @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 2010. All Rights Reserved. + * Copyright Ericsson AB 2010-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -40,7 +40,7 @@ void erts_init_cpu_topology(void); #define ERTS_INIT_SCHED_BIND_TYPE_SUCCESS 0 #define ERTS_INIT_SCHED_BIND_TYPE_NOT_SUPPORTED 1 #define ERTS_INIT_SCHED_BIND_TYPE_ERROR_NO_CPU_TOPOLOGY 2 -#define ERTS_INIT_SCHED_BIND_TYPE_ERROR_NO_BAD_TYPE 3 +#define ERTS_INIT_SCHED_BIND_TYPE_ERROR_BAD_TYPE 3 int erts_init_scheduler_bind_type_string(char *how); diff --git a/erts/emulator/beam/erl_db.c b/erts/emulator/beam/erl_db.c index 7409564167..8f246ffa07 100644 --- a/erts/emulator/beam/erl_db.c +++ b/erts/emulator/beam/erl_db.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 1996-2012. All Rights Reserved. + * Copyright Ericsson AB 1996-2014. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -125,6 +125,7 @@ get_meta_main_tab_lock(unsigned slot) static erts_smp_spinlock_t meta_main_tab_main_lock; static Uint meta_main_tab_first_free; /* Index of first free slot */ static int meta_main_tab_cnt; /* Number of active tables */ +static int meta_main_tab_top; /* Highest ever used slot + 1 */ static Uint meta_main_tab_slot_mask; /* The slot index part of an unnamed table id */ static Uint meta_main_tab_seq_incr; static Uint meta_main_tab_seq_cnt = 0; /* To give unique(-ish) table identifiers */ @@ -224,8 +225,9 @@ Export ets_select_continue_exp; static Export ets_delete_continue_exp; static void -free_dbtable(DbTable* tb) +free_dbtable(void *vtb) { + DbTable *tb = (DbTable *) vtb; #ifdef HARDDEBUG if (erts_smp_atomic_read_nob(&tb->common.memory_size) != sizeof(DbTable)) { erts_fprintf(stderr, "ets: free_dbtable memory remain=%ld fix=%x\n", @@ -250,39 +252,24 @@ free_dbtable(DbTable* tb) #endif ASSERT(is_immed(tb->common.heir_data)); erts_db_free(ERTS_ALC_T_DB_TABLE, tb, (void *) tb, sizeof(DbTable)); - ERTS_SMP_MEMORY_BARRIER; } -#ifdef ERTS_SMP -static void -chk_free_dbtable(void *vtb) -{ - DbTable * tb = (DbTable *) vtb; - ERTS_THR_MEMORY_BARRIER; - if (erts_refc_dectest(&tb->common.ref, 0) == 0) - free_dbtable(tb); -} -#endif - static void schedule_free_dbtable(DbTable* tb) { /* * NON-SMP case: Caller is *not* allowed to access the *tb * structure after this function has returned! - * SMP case: Caller is allowed to access the *tb structure - * until the bif has returned (we typically - * need to unlock the table lock after this - * function has returned). + * SMP case: Caller is allowed to access the *common* part of the *tb + * structure until the bif has returned (we typically need to + * unlock the table lock after this function has returned). + * Caller is *not* allowed to access the specialized part + * (hash or tree) of *tb after this function has returned. */ -#ifdef ERTS_SMP - int scheds = erts_get_max_no_executing_schedulers(); - ASSERT(scheds >= 1); ASSERT(erts_refc_read(&tb->common.ref, 0) == 0); - erts_refc_init(&tb->common.ref, scheds); - erts_schedule_multi_misc_aux_work(0, scheds, chk_free_dbtable, tb); -#else - free_dbtable(tb); -#endif + erts_schedule_thr_prgr_later_cleanup_op(free_dbtable, + (void *) tb, + &tb->release.data, + sizeof(DbTable)); } static ERTS_INLINE void db_init_lock(DbTable* tb, int use_frequent_read_lock, @@ -441,7 +428,8 @@ DbTable* db_get_table_aux(Process *p, if (tb) { db_lock(tb, kind); if (tb->common.id != id - || ((tb->common.status & what) == 0 && p->id != tb->common.owner)) { + || ((tb->common.status & what) == 0 + && p->common.id != tb->common.owner)) { db_unlock(tb, kind); tb = NULL; } @@ -541,10 +529,6 @@ static int remove_named_tab(DbTable *tb, int have_lock) &rwlock); #ifdef ERTS_SMP if (!have_lock && erts_smp_rwmtx_tryrwlock(rwlock) == EBUSY) { - /* - * We keep our increased refc over this op in order to - * prevent the table from disapearing. - */ db_unlock(tb, LCK_WRITE); erts_smp_rwmtx_rwlock(rwlock); db_lock(tb, LCK_WRITE); @@ -635,7 +619,7 @@ BIF_RETTYPE ets_safe_fixtable_2(BIF_ALIST_2) #ifdef HARDDEBUG erts_fprintf(stderr, "ets:safe_fixtable(%T,%T); Process: %T, initial: %T:%T/%bpu\n", - BIF_ARG_1, BIF_ARG_2, BIF_P->id, + BIF_ARG_1, BIF_ARG_2, BIF_P->common.id, BIF_P->initial[0], BIF_P->initial[1], BIF_P->initial[2]); #endif kind = (BIF_ARG_2 == am_true) ? LCK_READ : LCK_WRITE_REC; @@ -1214,7 +1198,7 @@ BIF_RETTYPE ets_rename_2(BIF_ALIST_2) #ifdef HARDDEBUG erts_fprintf(stderr, "ets:rename(%T,%T); Process: %T, initial: %T:%T/%bpu\n", - BIF_ARG_1, BIF_ARG_2, BIF_P->id, + BIF_ARG_1, BIF_ARG_2, BIF_P->common.id, BIF_P->initial[0], BIF_P->initial[1], BIF_P->initial[2]); #endif @@ -1457,7 +1441,7 @@ BIF_RETTYPE ets_new_2(BIF_ALIST_2) db_init_lock(tb, status & (DB_FINE_LOCKED|DB_FREQ_READ), "db_tab", "db_tab_fix"); tb->common.keypos = keypos; - tb->common.owner = BIF_P->id; + tb->common.owner = BIF_P->common.id; set_heir(BIF_P, tb, heir, heir_data); erts_smp_atomic_init_nob(&tb->common.nitems, 0); @@ -1479,7 +1463,7 @@ BIF_RETTYPE ets_new_2(BIF_ALIST_2) "** Too many db tables **\n"); free_heir_data(tb); tb->common.meth->db_free_table(tb); - free_dbtable(tb); + free_dbtable((void *) tb); BIF_ERROR(BIF_P, SYSTEM_LIMIT); } @@ -1487,6 +1471,10 @@ BIF_RETTYPE ets_new_2(BIF_ALIST_2) ASSERT(slot>=0 && slot<db_max_tabs); meta_main_tab_first_free = GET_NEXT_FREE_SLOT(slot); meta_main_tab_cnt++; + if (slot >= meta_main_tab_top) { + ASSERT(slot == meta_main_tab_top); + meta_main_tab_top = slot + 1; + } if (is_named) { ret = BIF_ARG_1; @@ -1526,7 +1514,7 @@ BIF_RETTYPE ets_new_2(BIF_ALIST_2) #ifdef HARDDEBUG erts_fprintf(stderr, "ets:new(%T,%T)=%T; Process: %T, initial: %T:%T/%bpu\n", - BIF_ARG_1, BIF_ARG_2, ret, BIF_P->id, + BIF_ARG_1, BIF_ARG_2, ret, BIF_P->common.id, BIF_P->initial[0], BIF_P->initial[1], BIF_P->initial[2]); erts_fprintf(stderr, "ets: new: meta_pid_to_tab common.memory_size = %ld\n", erts_smp_atomic_read_nob(&meta_pid_to_tab->common.memory_size)); @@ -1538,7 +1526,9 @@ BIF_RETTYPE ets_new_2(BIF_ALIST_2) db_meta_lock(meta_pid_to_tab, LCK_WRITE_REC); if (db_put_hash(meta_pid_to_tab, - TUPLE2(meta_tuple, BIF_P->id, make_small(slot)), + TUPLE2(meta_tuple, + BIF_P->common.id, + make_small(slot)), 0) != DB_ERROR_NONE) { erl_exit(1,"Could not update ets metadata."); } @@ -1657,7 +1647,7 @@ BIF_RETTYPE ets_delete_1(BIF_ALIST_1) #ifdef HARDDEBUG erts_fprintf(stderr, "ets:delete(%T); Process: %T, initial: %T:%T/%bpu\n", - BIF_ARG_1, BIF_P->id, + BIF_ARG_1, BIF_P->common.id, BIF_P->initial[0], BIF_P->initial[1], BIF_P->initial[2]); #endif @@ -1674,7 +1664,7 @@ BIF_RETTYPE ets_delete_1(BIF_ALIST_1) tb->common.status &= ~(DB_PROTECTED|DB_PUBLIC|DB_PRIVATE); tb->common.status |= DB_DELETE; - if (tb->common.owner != BIF_P->id) { + if (tb->common.owner != BIF_P->common.id) { DeclareTmpHeap(meta_tuple,3,BIF_P); /* @@ -1689,10 +1679,12 @@ BIF_RETTYPE ets_delete_1(BIF_ALIST_1) make_small(tb->common.slot)); BIF_P->flags |= F_USING_DB; - tb->common.owner = BIF_P->id; + tb->common.owner = BIF_P->common.id; db_put_hash(meta_pid_to_tab, - TUPLE2(meta_tuple,BIF_P->id,make_small(tb->common.slot)), + TUPLE2(meta_tuple, + BIF_P->common.id, + make_small(tb->common.slot)), 0); db_meta_unlock(meta_pid_to_tab, LCK_WRITE_REC); UnUseTmpHeap(3,BIF_P); @@ -1768,7 +1760,7 @@ BIF_RETTYPE ets_give_away_3(BIF_ALIST_3) } if ((tb = db_get_table(BIF_P, BIF_ARG_1, DB_WRITE, LCK_WRITE)) == NULL - || tb->common.owner != BIF_P->id) { + || tb->common.owner != BIF_P->common.id) { goto badarg; } from_pid = tb->common.owner; @@ -1791,7 +1783,10 @@ BIF_RETTYPE ets_give_away_3(BIF_ALIST_3) db_unlock(tb,LCK_WRITE); erts_send_message(BIF_P, to_proc, &to_locks, - TUPLE4(buf, am_ETS_TRANSFER, tb->common.id, from_pid, BIF_ARG_3), + TUPLE4(buf, am_ETS_TRANSFER, + tb->common.id, + from_pid, + BIF_ARG_3), 0); erts_smp_proc_unlock(to_proc, to_locks); UnUseTmpHeap(5,BIF_P); @@ -1853,7 +1848,7 @@ BIF_RETTYPE ets_setopts_2(BIF_ALIST_2) if (tail != NIL || (tb = db_get_table(BIF_P, BIF_ARG_1, DB_WRITE, LCK_WRITE)) == NULL - || tb->common.owner != BIF_P->id) { + || tb->common.owner != BIF_P->common.id) { goto badarg; } @@ -2069,27 +2064,31 @@ BIF_RETTYPE ets_all_0(BIF_ALIST_0) { DbTable* tb; Eterm previous; - int i, j; + int i; Eterm* hp; Eterm* hendp; int t_tabs_cnt; - int t_max_tabs; + int t_top; erts_smp_spin_lock(&meta_main_tab_main_lock); t_tabs_cnt = meta_main_tab_cnt; - t_max_tabs = db_max_tabs; + t_top = meta_main_tab_top; erts_smp_spin_unlock(&meta_main_tab_main_lock); hp = HAlloc(BIF_P, 2*t_tabs_cnt); hendp = hp + 2*t_tabs_cnt; previous = NIL; - j = 0; - for(i = 0; (i < t_max_tabs && j < t_tabs_cnt); i++) { + for(i = 0; i < t_top; i++) { erts_smp_rwmtx_t *mmtl = get_meta_main_tab_lock(i); erts_smp_rwmtx_rlock(mmtl); if (IS_SLOT_ALIVE(i)) { - j++; + if (hp == hendp) { + /* Racing table creator, grab some more heap space */ + t_tabs_cnt = 10; + hp = HAlloc(BIF_P, 2*t_tabs_cnt); + hendp = hp + 2*t_tabs_cnt; + } tb = meta_main_tab[i].u.tb; previous = CONS(hp, tb->common.id, previous); hp += 2; @@ -2247,7 +2246,7 @@ static BIF_RETTYPE ets_select_trap_1(BIF_ALIST_1) CHECK_TABLES(); tptr = tuple_val(a1); - ASSERT(arityval(*tptr) >= 1) + ASSERT(arityval(*tptr) >= 1); if ((tb = db_get_table(p, tptr[1], DB_READ, kind)) == NULL) { BIF_ERROR(p, BADARG); @@ -2414,7 +2413,7 @@ static BIF_RETTYPE ets_select_count_1(BIF_ALIST_1) CHECK_TABLES(); tptr = tuple_val(a1); - ASSERT(arityval(*tptr) >= 1) + ASSERT(arityval(*tptr) >= 1); if ((tb = db_get_table(p, tptr[1], DB_READ, kind)) == NULL) { BIF_ERROR(p, BADARG); } @@ -2667,7 +2666,7 @@ BIF_RETTYPE ets_info_1(BIF_ALIST_1) */ /* If/when we implement lockless private tables: - if ((tb->common.status & DB_PRIVATE) && owner != BIF_P->id) { + if ((tb->common.status & DB_PRIVATE) && owner != BIF_P->common.id) { db_unlock(tb, LCK_READ); rp = erts_pid2proc_not_running(BIF_P, ERTS_PROC_LOCK_MAIN, owner, ERTS_PROC_LOCK_MAIN); @@ -2814,7 +2813,6 @@ void init_db(void) { DbTable init_tb; int i; - extern BeamInstr* em_apply_bif; Eterm *hp; unsigned bits; size_t size; @@ -2848,7 +2846,7 @@ void init_db(void) else db_max_tabs = user_requested_db_max_tabs; - bits = erts_fit_in_bits(db_max_tabs-1); + bits = erts_fit_in_bits_int32(db_max_tabs-1); if (bits > SMALL_BITS) { erl_exit(1,"Max limit for ets tabled too high %u (max %u).", db_max_tabs, ((Uint)1)<<SMALL_BITS); @@ -2861,6 +2859,7 @@ void init_db(void) ERTS_ETS_MISC_MEM_ADD(size); meta_main_tab_cnt = 0; + meta_main_tab_top = 0; for (i=1; i<db_max_tabs; i++) { SET_NEXT_FREE_SLOT(i-1,i); } @@ -2945,49 +2944,24 @@ void init_db(void) } /* Non visual BIF to trap to. */ - memset(&ets_select_delete_continue_exp, 0, sizeof(Export)); - ets_select_delete_continue_exp.address = - &ets_select_delete_continue_exp.code[3]; - ets_select_delete_continue_exp.code[0] = am_ets; - ets_select_delete_continue_exp.code[1] = am_atom_put("delete_trap",11); - ets_select_delete_continue_exp.code[2] = 1; - ets_select_delete_continue_exp.code[3] = - (BeamInstr) em_apply_bif; - ets_select_delete_continue_exp.code[4] = - (BeamInstr) &ets_select_delete_1; + erts_init_trap_export(&ets_select_delete_continue_exp, + am_ets, am_atom_put("delete_trap",11), 1, + &ets_select_delete_1); /* Non visual BIF to trap to. */ - memset(&ets_select_count_continue_exp, 0, sizeof(Export)); - ets_select_count_continue_exp.address = - &ets_select_count_continue_exp.code[3]; - ets_select_count_continue_exp.code[0] = am_ets; - ets_select_count_continue_exp.code[1] = am_atom_put("count_trap",11); - ets_select_count_continue_exp.code[2] = 1; - ets_select_count_continue_exp.code[3] = - (BeamInstr) em_apply_bif; - ets_select_count_continue_exp.code[4] = - (BeamInstr) &ets_select_count_1; + erts_init_trap_export(&ets_select_count_continue_exp, + am_ets, am_atom_put("count_trap",11), 1, + &ets_select_count_1); /* Non visual BIF to trap to. */ - memset(&ets_select_continue_exp, 0, sizeof(Export)); - ets_select_continue_exp.address = - &ets_select_continue_exp.code[3]; - ets_select_continue_exp.code[0] = am_ets; - ets_select_continue_exp.code[1] = am_atom_put("select_trap",11); - ets_select_continue_exp.code[2] = 1; - ets_select_continue_exp.code[3] = - (BeamInstr) em_apply_bif; - ets_select_continue_exp.code[4] = - (BeamInstr) &ets_select_trap_1; + erts_init_trap_export(&ets_select_continue_exp, + am_ets, am_atom_put("select_trap",11), 1, + &ets_select_trap_1); /* Non visual BIF to trap to. */ - memset(&ets_delete_continue_exp, 0, sizeof(Export)); - ets_delete_continue_exp.address = &ets_delete_continue_exp.code[3]; - ets_delete_continue_exp.code[0] = am_ets; - ets_delete_continue_exp.code[1] = am_atom_put("delete_trap",11); - ets_delete_continue_exp.code[2] = 1; - ets_delete_continue_exp.code[3] = (BeamInstr) em_apply_bif; - ets_delete_continue_exp.code[4] = (BeamInstr) &ets_delete_trap; + erts_init_trap_export(&ets_delete_continue_exp, + am_ets, am_atom_put("delete_trap",11), 1, + &ets_delete_trap); hp = ms_delete_all_buff; ms_delete_all = CONS(hp, am_true, NIL); @@ -3085,9 +3059,9 @@ static int give_away_to_heir(Process* p, DbTable* tb) Eterm to_pid; UWord heir_data; - ASSERT(tb->common.owner == p->id); + ASSERT(tb->common.owner == p->common.id); ASSERT(is_internal_pid(tb->common.heir)); - ASSERT(tb->common.heir != p->id); + ASSERT(tb->common.heir != p->common.id); retry: to_pid = tb->common.heir; to_proc = erts_pid2proc_opt(p, ERTS_PROC_LOCK_MAIN, @@ -3100,7 +3074,7 @@ retry: db_lock(tb,LCK_WRITE); ASSERT(tb != NULL); - if (tb->common.owner != p->id) { + if (tb->common.owner != p->common.id) { if (to_proc != NULL ) { erts_smp_proc_unlock(to_proc, to_locks); } @@ -3111,7 +3085,7 @@ retry: if (to_proc != NULL ) { erts_smp_proc_unlock(to_proc, to_locks); } - if (to_pid == p->id || to_pid == am_none) { + if (to_pid == p->common.id || to_pid == am_none) { return 0; /* no real heir, table still mine */ } goto retry; @@ -3120,7 +3094,8 @@ retry: if (to_proc == NULL) { return 0; /* heir not alive, table still mine */ } - if (erts_cmp_timeval(&to_proc->started, &tb->common.heir_started) != 0) { + if (to_proc->common.u.alive.started_interval + != tb->common.heir_started_interval) { erts_smp_proc_unlock(to_proc, to_locks); return 0; /* heir dead and pid reused, table still mine */ } @@ -3145,7 +3120,11 @@ retry: heir_data = tpv[1]; } erts_send_message(p, to_proc, &to_locks, - TUPLE4(buf, am_ETS_TRANSFER, tb->common.id, p->id, heir_data), + TUPLE4(buf, + am_ETS_TRANSFER, + tb->common.id, + p->common.id, + heir_data), 0); erts_smp_proc_unlock(to_proc, to_locks); return !0; @@ -3154,7 +3133,7 @@ retry: /* * erts_db_process_exiting() is called when a process terminates. * It returns 0 when completely done, and !0 when it wants to - * yield. c_p->u.exit_data can hold a pointer to a state while + * yield. c_p->u.terminate can hold a pointer to a state while * yielding. */ #define ERTS_DB_INTERNAL_ERROR(LSTR) \ @@ -3164,8 +3143,8 @@ retry: int erts_db_process_exiting(Process *c_p, ErtsProcLocks c_p_locks) { - ErtsDbProcCleanupState *state = (ErtsDbProcCleanupState *) c_p->u.exit_data; - Eterm pid = c_p->id; + ErtsDbProcCleanupState *state = (ErtsDbProcCleanupState *) c_p->u.terminate; + Eterm pid = c_p->common.id; ErtsDbProcCleanupState default_state; int ret; @@ -3301,34 +3280,37 @@ erts_db_process_exiting(Process *c_p, ErtsProcLocks c_p_locks) } erts_smp_rwmtx_runlock(mmtl); if (tb) { - int reds; - DbFixation** pp; + int reds = 0; db_lock(tb, LCK_WRITE_REC); - #ifdef ERTS_SMP - erts_smp_mtx_lock(&tb->common.fixlock); - #endif - reds = 10; - - for (pp = &tb->common.fixations; *pp != NULL; - pp = &(*pp)->next) { - if ((*pp)->pid == pid) { - DbFixation* fix = *pp; - erts_aint_t diff = -((erts_aint_t) fix->counter); - erts_refc_add(&tb->common.ref,diff,0); - *pp = fix->next; - erts_db_free(ERTS_ALC_T_DB_FIXATION, - tb, fix, sizeof(DbFixation)); - ERTS_ETS_MISC_MEM_ADD(-sizeof(DbFixation)); - break; + if (!(tb->common.status & DB_DELETE)) { + DbFixation** pp; + + #ifdef ERTS_SMP + erts_smp_mtx_lock(&tb->common.fixlock); + #endif + reds = 10; + + for (pp = &tb->common.fixations; *pp != NULL; + pp = &(*pp)->next) { + if ((*pp)->pid == pid) { + DbFixation* fix = *pp; + erts_aint_t diff = -((erts_aint_t) fix->counter); + erts_refc_add(&tb->common.ref,diff,0); + *pp = fix->next; + erts_db_free(ERTS_ALC_T_DB_FIXATION, + tb, fix, sizeof(DbFixation)); + ERTS_ETS_MISC_MEM_ADD(-sizeof(DbFixation)); + break; + } + } + #ifdef ERTS_SMP + erts_smp_mtx_unlock(&tb->common.fixlock); + #endif + if (!IS_FIXED(tb) && IS_HASH_TABLE(tb->common.status)) { + db_unfix_table_hash(&(tb->hash)); + reds += 40; } - } - #ifdef ERTS_SMP - erts_smp_mtx_unlock(&tb->common.fixlock); - #endif - if (!IS_FIXED(tb) && IS_HASH_TABLE(tb->common.status)) { - db_unfix_table_hash(&(tb->hash)); - reds += 40; } db_unlock(tb, LCK_WRITE_REC); BUMP_REDS(c_p, reds); @@ -3346,7 +3328,7 @@ erts_db_process_exiting(Process *c_p, ErtsProcLocks c_p_locks) if (state != &default_state) erts_free(ERTS_ALC_T_DB_PROC_CLEANUP, state); - c_p->u.exit_data = NULL; + c_p->u.terminate = NULL; return 0; default: @@ -3367,13 +3349,13 @@ erts_db_process_exiting(Process *c_p, ErtsProcLocks c_p_locks) break; } - ASSERT(c_p->u.exit_data == (void *) state + ASSERT(c_p->u.terminate == (void *) state || state == &default_state); if (state == &default_state) { - c_p->u.exit_data = erts_alloc(ERTS_ALC_T_DB_PROC_CLEANUP, + c_p->u.terminate = erts_alloc(ERTS_ALC_T_DB_PROC_CLEANUP, sizeof(ErtsDbProcCleanupState)); - sys_memcpy(c_p->u.exit_data, + sys_memcpy(c_p->u.terminate, (void*) state, sizeof(ErtsDbProcCleanupState)); } @@ -3399,7 +3381,7 @@ static void fix_table_locked(Process* p, DbTable* tb) } else { for (; fix != NULL; fix = fix->next) { - if (fix->pid == p->id) { + if (fix->pid == p->common.id) { ++(fix->counter); #ifdef ERTS_SMP erts_smp_mtx_unlock(&tb->common.fixlock); @@ -3411,7 +3393,7 @@ static void fix_table_locked(Process* p, DbTable* tb) fix = (DbFixation *) erts_db_alloc(ERTS_ALC_T_DB_FIXATION, tb, sizeof(DbFixation)); ERTS_ETS_MISC_MEM_ADD(sizeof(DbFixation)); - fix->pid = p->id; + fix->pid = p->common.id; fix->counter = 1; fix->next = tb->common.fixations; tb->common.fixations = fix; @@ -3422,7 +3404,9 @@ static void fix_table_locked(Process* p, DbTable* tb) UseTmpHeap(3,p); db_meta_lock(meta_pid_to_fixed_tab, LCK_WRITE_REC); if (db_put_hash(meta_pid_to_fixed_tab, - TUPLE2(meta_tuple, p->id, make_small(tb->common.slot)), + TUPLE2(meta_tuple, + p->common.id, + make_small(tb->common.slot)), 0) != DB_ERROR_NONE) { UnUseTmpHeap(3,p); erl_exit(1,"Could not insert ets metadata in safe_fixtable."); @@ -3442,7 +3426,7 @@ static void unfix_table_locked(Process* p, DbTable* tb, erts_smp_mtx_lock(&tb->common.fixlock); #endif for (pp = &tb->common.fixations; *pp != NULL; pp = &(*pp)->next) { - if ((*pp)->pid == p->id) { + if ((*pp)->pid == p->common.id) { DbFixation* fix = *pp; erts_refc_dec(&tb->common.ref,0); --(fix->counter); @@ -3456,7 +3440,7 @@ static void unfix_table_locked(Process* p, DbTable* tb, #endif db_meta_lock(meta_pid_to_fixed_tab, LCK_WRITE_REC); db_erase_bag_exact2(meta_pid_to_fixed_tab, - p->id, make_small(tb->common.slot)); + p->common.id, make_small(tb->common.slot)); db_meta_unlock(meta_pid_to_fixed_tab, LCK_WRITE_REC); erts_db_free(ERTS_ALC_T_DB_FIXATION, tb, (void *) fix, sizeof(DbFixation)); @@ -3515,15 +3499,15 @@ static void set_heir(Process* me, DbTable* tb, Eterm heir, UWord heir_data) if (heir == am_none) { return; } - if (heir == me->id) { - tb->common.heir_started = me->started; + if (heir == me->common.id) { + erts_ensure_later_proc_interval(me->common.u.alive.started_interval); + tb->common.heir_started_interval = me->common.u.alive.started_interval; } else { - Process* heir_proc= erts_pid2proc_opt(me, ERTS_PROC_LOCK_MAIN, heir, - 0, ERTS_P2P_FLG_SMP_INC_REFC); + Process* heir_proc= erts_proc_lookup(heir); if (heir_proc != NULL) { - tb->common.heir_started = heir_proc->started; - erts_smp_proc_dec_refc(heir_proc); + erts_ensure_later_proc_interval(heir_proc->common.u.alive.started_interval); + tb->common.heir_started_interval = heir_proc->common.u.alive.started_interval; } else { tb->common.heir = am_none; } @@ -3841,6 +3825,13 @@ erts_db_foreach_offheap(DbTable *tb, tb->common.meth->db_foreach_offheap(tb, func, arg); } +/* retrieve max number of ets tables */ +Uint +erts_db_get_max_tabs() +{ + return db_max_tabs; +} + /* * For testing of meta tables only. * @@ -3861,7 +3852,7 @@ erts_ets_colliding_names(Process* p, Eterm name, Uint cnt) while (index >= atom_table_size()) { char tmp[20]; erts_snprintf(tmp, sizeof(tmp), "am%x", atom_table_size()); - am_atom_put(tmp,strlen(tmp)); + erts_atom_put((byte *) tmp, strlen(tmp), ERTS_ATOM_ENC_LATIN1, 1); } list = CONS(hp, make_atom(index), list); hp += 2; diff --git a/erts/emulator/beam/erl_db.h b/erts/emulator/beam/erl_db.h index 2e5deaf338..5b4681fc90 100644 --- a/erts/emulator/beam/erl_db.h +++ b/erts/emulator/beam/erl_db.h @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 1996-2011. All Rights Reserved. + * Copyright Ericsson AB 1996-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -27,6 +27,10 @@ #define __DB_H__ #include "sys.h" +#undef ERL_THR_PROGRESS_TSD_TYPE_ONLY +#define ERL_THR_PROGRESS_TSD_TYPE_ONLY +#include "erl_thr_progress.h" +#undef ERL_THR_PROGRESS_TSD_TYPE_ONLY #include "bif.h" #include "erl_db_util.h" /* Flags */ @@ -36,6 +40,11 @@ Uint erts_get_ets_misc_mem_size(void); +typedef struct { + DbTableCommon common; + ErtsThrPrgrLaterOp data; +} DbTableRelease; + /* * So, the structure for a database table, NB this is only * interesting in db.c. @@ -44,6 +53,7 @@ union db_table { DbTableCommon common; /* Any type of db table */ DbTableHash hash; /* Linear hash array specific data */ DbTableTree tree; /* AVL tree specific data */ + DbTableRelease release; /*TT*/ }; @@ -69,6 +79,8 @@ extern erts_smp_atomic_t erts_ets_misc_mem_size; Eterm erts_ets_colliding_names(Process*, Eterm name, Uint cnt); +Uint erts_db_get_max_tabs(void); + #endif #if defined(ERTS_WANT_DB_INTERNAL__) && !defined(ERTS_HAVE_DB_INTERNAL__) diff --git a/erts/emulator/beam/erl_db_hash.c b/erts/emulator/beam/erl_db_hash.c index 2fea4671e1..06dac8f161 100644 --- a/erts/emulator/beam/erl_db_hash.c +++ b/erts/emulator/beam/erl_db_hash.c @@ -2106,7 +2106,7 @@ static void db_print_hash(int to, void *to_arg, int show, DbTable *tbl) DbTableHash *tb = &tbl->hash; int i; - erts_print(to, to_arg, "Buckets: %d \n", NACTIVE(tb)); + erts_print(to, to_arg, "Buckets: %d\n", NACTIVE(tb)); if (show) { for (i = 0; i < NACTIVE(tb); i++) { diff --git a/erts/emulator/beam/erl_db_hash.h b/erts/emulator/beam/erl_db_hash.h index cddd8dfadd..908cec11d4 100644 --- a/erts/emulator/beam/erl_db_hash.h +++ b/erts/emulator/beam/erl_db_hash.h @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 1998-2011. All Rights Reserved. + * Copyright Ericsson AB 1998-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -33,7 +33,12 @@ typedef struct hash_db_term { DbTerm dbterm; /* The actual term */ } HashDbTerm; -#define DB_HASH_LOCK_CNT 16 +#ifdef ERTS_DB_HASH_LOCK_CNT +#define DB_HASH_LOCK_CNT ERTS_DB_HASH_LOCK_CNT +#else +#define DB_HASH_LOCK_CNT 64 +#endif + typedef struct db_table_hash_fine_locks { union { erts_smp_rwmtx_t lck; diff --git a/erts/emulator/beam/erl_db_tree.c b/erts/emulator/beam/erl_db_tree.c index 312050b931..a62a83a928 100644 --- a/erts/emulator/beam/erl_db_tree.c +++ b/erts/emulator/beam/erl_db_tree.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 1998-2011. All Rights Reserved. + * Copyright Ericsson AB 1998-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -452,16 +452,8 @@ DbTableMethod db_tree = void db_initialize_tree(void) { - memset(&ets_select_reverse_exp, 0, sizeof(Export)); - ets_select_reverse_exp.address = - &ets_select_reverse_exp.code[3]; - ets_select_reverse_exp.code[0] = am_ets; - ets_select_reverse_exp.code[1] = am_reverse; - ets_select_reverse_exp.code[2] = 3; - ets_select_reverse_exp.code[3] = - (BeamInstr) em_apply_bif; - ets_select_reverse_exp.code[4] = - (BeamInstr) &ets_select_reverse; + erts_init_trap_export(&ets_select_reverse_exp, am_ets, am_reverse, 3, + &ets_select_reverse); return; }; @@ -493,7 +485,7 @@ static int db_first_tree(Process *p, DbTable *tbl, Eterm *ret) *ret = am_EOT; return DB_ERROR_NONE; } - /* Walk down to the tree to the left */ + /* Walk down the tree to the left */ if ((stack = get_static_stack(tb)) != NULL) { stack->pos = stack->slot = 0; } @@ -539,7 +531,7 @@ static int db_last_tree(Process *p, DbTable *tbl, Eterm *ret) *ret = am_EOT; return DB_ERROR_NONE; } - /* Walk down to the tree to the left */ + /* Walk down the tree to the right */ if ((stack = get_static_stack(tb)) != NULL) { stack->pos = stack->slot = 0; } diff --git a/erts/emulator/beam/erl_db_util.c b/erts/emulator/beam/erl_db_util.c index 42907e2e84..3927615e04 100644 --- a/erts/emulator/beam/erl_db_util.c +++ b/erts/emulator/beam/erl_db_util.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 1998-2012. All Rights Reserved. + * Copyright Ericsson AB 1998-2014. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -35,6 +35,7 @@ #include "bif.h" #include "big.h" #include "erl_binary.h" +#include "erl_map.h" #include "erl_thr_progress.h" #include "erl_db_util.h" @@ -138,21 +139,23 @@ set_tracee_flags(Process *tracee_p, Eterm tracer, Uint d_flags, Uint e_flags) { Uint flags; if (tracer == NIL) { - flags = tracee_p->trace_flags & ~TRACEE_FLAGS; + flags = ERTS_TRACE_FLAGS(tracee_p) & ~TRACEE_FLAGS; } else { - flags = ((tracee_p->trace_flags & ~d_flags) | e_flags); + flags = ((ERTS_TRACE_FLAGS(tracee_p) & ~d_flags) | e_flags); if (! flags) tracer = NIL; } - ret = tracee_p->tracer_proc != tracer || tracee_p->trace_flags != flags - ? am_true : am_false; - tracee_p->tracer_proc = tracer; - tracee_p->trace_flags = flags; + ret = ((ERTS_TRACER_PROC(tracee_p) != tracer + || ERTS_TRACE_FLAGS(tracee_p) != flags) + ? am_true + : am_false); + ERTS_TRACER_PROC(tracee_p) = tracer; + ERTS_TRACE_FLAGS(tracee_p) = flags; return ret; } /* ** Assuming all locks on tracee_p on entry ** -** Changes tracee_p->trace_flags and tracee_p->tracer_proc +** Changes ERTS_TRACE_FLAGS(tracee_p) and ERTS_TRACER_PROC(tracee_p) ** according to input disable/enable flags and tracer. ** ** Returns am_true|am_false on success, am_true if value changed, @@ -173,17 +176,20 @@ set_match_trace(Process *tracee_p, Eterm fail_term, Eterm tracer, tracer, ERTS_PROC_LOCKS_ALL))) { if (tracee_p != tracer_p) { ret = set_tracee_flags(tracee_p, tracer, d_flags, e_flags); - tracer_p->trace_flags |= tracee_p->trace_flags ? F_TRACER : 0; + ERTS_TRACE_FLAGS(tracer_p) |= (ERTS_TRACE_FLAGS(tracee_p) + ? F_TRACER + : 0); erts_smp_proc_unlock(tracer_p, ERTS_PROC_LOCKS_ALL); } } else if (is_internal_port(tracer)) { Port *tracer_port = - erts_id2port(tracer, tracee_p, ERTS_PROC_LOCKS_ALL); + erts_id2port_sflgs(tracer, + tracee_p, + ERTS_PROC_LOCKS_ALL, + ERTS_PORT_SFLGS_INVALID_TRACER_LOOKUP); if (tracer_port) { - if (! INVALID_TRACER_PORT(tracer_port, tracer)) { - ret = set_tracee_flags(tracee_p, tracer, d_flags, e_flags); - } - erts_smp_port_unlock(tracer_port); + ret = set_tracee_flags(tracee_p, tracer, d_flags, e_flags); + erts_port_release(tracer_port); } } else { ASSERT(is_nil(tracer)); @@ -477,7 +483,8 @@ void match_pseudo_process_init(void) { #ifdef ERTS_SMP - erts_smp_tsd_key_create(&match_pseudo_process_key); + erts_smp_tsd_key_create(&match_pseudo_process_key, + "erts_match_pseudo_process_key"); erts_smp_install_exit_handler(destroy_match_pseudo_process); #else match_pseudo_process = create_match_pseudo_process(); @@ -560,6 +567,12 @@ static DMCGuardBif guard_tab[] = DBIF_ALL }, { + am_is_map, + &is_map_1, + 1, + DBIF_ALL + }, + { am_is_binary, &is_binary_1, 1, @@ -626,6 +639,12 @@ static DMCGuardBif guard_tab[] = DBIF_ALL }, { + am_map_size, + &map_size_1, + 1, + DBIF_ALL + }, + { am_bit_size, &bit_size_1, 1, @@ -1833,7 +1852,7 @@ restart: ep = termp; break; case matchArrayBind: /* When the array size is unknown. */ - ASSERT(termp); + ASSERT(termp || arity==0); n = *pc++; variables[n].term = dpm_array_to_list(psp, termp, arity); break; @@ -2174,7 +2193,7 @@ restart: pc += n; break; case matchSelf: - *esp++ = c_p->id; + *esp++ = c_p->common.id; break; case matchWaste: --esp; @@ -2261,7 +2280,7 @@ restart: case matchEnableTrace: if ( (n = erts_trace_flag2bit(esp[-1]))) { BEGIN_ATOMIC_TRACE(c_p); - set_tracee_flags(c_p, c_p->tracer_proc, 0, n); + set_tracee_flags(c_p, ERTS_TRACER_PROC(c_p), 0, n); esp[-1] = am_true; } else { esp[-1] = FAIL_TERM; @@ -2274,7 +2293,7 @@ restart: BEGIN_ATOMIC_TRACE(c_p); if ( (tmpp = get_proc(c_p, 0, esp[0], 0))) { /* Always take over the tracer of the current process */ - set_tracee_flags(tmpp, c_p->tracer_proc, 0, n); + set_tracee_flags(tmpp, ERTS_TRACER_PROC(c_p), 0, n); esp[-1] = am_true; } } @@ -2282,7 +2301,7 @@ restart: case matchDisableTrace: if ( (n = erts_trace_flag2bit(esp[-1]))) { BEGIN_ATOMIC_TRACE(c_p); - set_tracee_flags(c_p, c_p->tracer_proc, n, 0); + set_tracee_flags(c_p, ERTS_TRACER_PROC(c_p), n, 0); esp[-1] = am_true; } else { esp[-1] = FAIL_TERM; @@ -2295,7 +2314,7 @@ restart: BEGIN_ATOMIC_TRACE(c_p); if ( (tmpp = get_proc(c_p, 0, esp[0], 0))) { /* Always take over the tracer of the current process */ - set_tracee_flags(tmpp, c_p->tracer_proc, n, 0); + set_tracee_flags(tmpp, ERTS_TRACER_PROC(c_p), n, 0); esp[-1] = am_true; } } @@ -2314,14 +2333,16 @@ restart: break; case matchSilent: --esp; + if (in_flags & ERTS_PAM_IGNORE_TRACE_SILENT) + break; if (*esp == am_true) { erts_smp_proc_lock(c_p, ERTS_PROC_LOCKS_ALL_MINOR); - c_p->trace_flags |= F_TRACE_SILENT; + ERTS_TRACE_FLAGS(c_p) |= F_TRACE_SILENT; erts_smp_proc_unlock(c_p, ERTS_PROC_LOCKS_ALL_MINOR); } else if (*esp == am_false) { erts_smp_proc_lock(c_p, ERTS_PROC_LOCKS_ALL_MINOR); - c_p->trace_flags &= ~F_TRACE_SILENT; + ERTS_TRACE_FLAGS(c_p) &= ~F_TRACE_SILENT; erts_smp_proc_unlock(c_p, ERTS_PROC_LOCKS_ALL_MINOR); } break; @@ -2329,11 +2350,11 @@ restart: { /* disable enable */ Uint d_flags = 0, e_flags = 0; /* process trace flags */ - Eterm tracer = c_p->tracer_proc; + Eterm tracer = ERTS_TRACER_PROC(c_p); /* XXX Atomicity note: Not fully atomic. Default tracer * is sampled from current process but applied to * tracee and tracer later after releasing main - * locks on current process, so c_p->tracer_proc + * locks on current process, so ERTS_TRACER_PROC(c_p) * may actually have changed when tracee and tracer * gets updated. I do not think nobody will notice. * It is just the default value that is not fully atomic. @@ -2358,7 +2379,7 @@ restart: { /* disable enable */ Uint d_flags = 0, e_flags = 0; /* process trace flags */ - Eterm tracer = c_p->tracer_proc; + Eterm tracer = ERTS_TRACER_PROC(c_p); /* XXX Atomicity note. Not fully atomic. See above. * Above it could possibly be solved, but not here. */ @@ -2480,7 +2501,7 @@ Eterm db_format_dmc_err_info(Process *p, DMCErrInfo *ei) vnum = tmp->variable; } if (vnum >= 0) - sprintf(buff,tmp->error_string, vnum); + erts_snprintf(buff,sizeof(buff)+20,tmp->error_string, vnum); else strcpy(buff,tmp->error_string); sl = strlen(buff); @@ -3410,8 +3431,7 @@ static DMCRet dmc_one_term(DMCContext *context, } default: erl_exit(1, "db_match_compile: " - "Bad object on heap: 0x%08lx\n", - (unsigned long) c); + "Bad object on heap: 0x%bex\n", c); } return retOk; } @@ -4485,7 +4505,9 @@ static DMCRet dmc_fun(DMCContext *context, if (context->err_info != NULL) { /* Ugly, should define a better RETURN_TERM_ERROR interface... */ char buff[100]; - sprintf(buff, "Function %%T/%d does_not_exist.", (int)a - 1); + erts_snprintf(buff, sizeof(buff), + "Function %%T/%d does_not_exist.", + (int)a - 1); RETURN_TERM_ERROR(buff, p[1], context, *constant); } else { return retFail; @@ -4500,7 +4522,7 @@ static DMCRet dmc_fun(DMCContext *context, if (context->err_info != NULL) { /* Ugly, should define a better RETURN_TERM_ERROR interface... */ char buff[100]; - sprintf(buff, + erts_snprintf(buff, sizeof(buff), "Function %%T/%d cannot be called in this context.", (int)a - 1); RETURN_TERM_ERROR(buff, p[1], context, *constant); @@ -4764,9 +4786,10 @@ static int match_compact(ErlHeapFragment *expr, DMCErrInfo *err_info) for (j = 0; j < x && DMC_PEEK(heap,j) != n; ++j) ; ASSERT(j < x); - sprintf(buff+1,"%u", (unsigned) j); + erts_snprintf(buff+1, sizeof(buff) - 1, "%u", (unsigned) j); /* Yes, writing directly into terms, they ARE off heap */ - *p = am_atom_put(buff, strlen(buff)); + *p = erts_atom_put((byte *) buff, strlen(buff), + ERTS_ATOM_ENC_LATIN1, 1); } ++p; } @@ -4853,7 +4876,7 @@ static Eterm my_copy_struct(Eterm t, Eterm **hp, ErlOffHeap* off_heap) ret = copy_struct(b,sz,hp,off_heap); } else { erl_exit(1, "Trying to constant-copy non constant expression " - "0x%08x in (d)ets:match compilation.", (unsigned long) t); + "0x%bex in (d)ets:match compilation.", t); } } else { sz = size_object(t); @@ -4964,7 +4987,8 @@ static Eterm match_spec_test(Process *p, Eterm against, Eterm spec, int trace) save_cp = p->cp; p->cp = NULL; res = erts_match_set_run(p, mps, arr, n, - ERTS_PAM_COPY_RESULT, &ret_flags); + ERTS_PAM_COPY_RESULT|ERTS_PAM_IGNORE_TRACE_SILENT, + &ret_flags); p->cp = save_cp; } else { n = 0; @@ -5002,7 +5026,7 @@ static Eterm match_spec_test(Process *p, Eterm against, Eterm spec, int trace) static Eterm seq_trace_fake(Process *p, Eterm arg1) { Eterm result = erl_seq_trace_info(p, arg1); - if (is_tuple(result) && *tuple_val(result) == 2) { + if (!is_non_value(result) && is_tuple(result) && *tuple_val(result) == 2) { return (tuple_val(result))[2]; } return result; @@ -5387,7 +5411,7 @@ void db_match_dis(Binary *bp) erts_printf("Caller\n"); break; default: - erts_printf("??? (0x%08x)\n", *t); + erts_printf("??? (0x%bpx)\n", *t); ++t; break; } @@ -5399,13 +5423,13 @@ void db_match_dis(Binary *bp) first = 0; else erts_printf(", "); - erts_printf("0x%08x", (unsigned long) tmp); + erts_printf("%p", tmp); } erts_printf("}\n"); erts_printf("num_bindings: %d\n", prog->num_bindings); erts_printf("heap_size: %beu\n", prog->heap_size); erts_printf("stack_offset: %beu\n", prog->stack_offset); - erts_printf("text: 0x%08x\n", (unsigned long) prog->text); + erts_printf("text: %p\n", prog->text); erts_printf("stack_size: %d (words)\n", prog->heap_size-prog->stack_offset); } diff --git a/erts/emulator/beam/erl_db_util.h b/erts/emulator/beam/erl_db_util.h index 6a96e174e1..328b19dfc9 100644 --- a/erts/emulator/beam/erl_db_util.h +++ b/erts/emulator/beam/erl_db_util.h @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 1998-2011. All Rights Reserved. + * Copyright Ericsson AB 1998-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -209,7 +209,7 @@ typedef struct db_fixation { */ typedef struct db_table_common { - erts_refc_t ref; /* fixation counter and delete counter */ + erts_refc_t ref; /* fixation counter */ #ifdef ERTS_SMP erts_smp_rwmtx_t rwlock; /* rw lock on table */ erts_smp_mtx_t fixlock; /* Protects fixations,megasec,sec,microsec */ @@ -219,7 +219,7 @@ typedef struct db_table_common { Eterm owner; /* Pid of the creator */ Eterm heir; /* Pid of the heir */ UWord heir_data; /* To send in ETS-TRANSFER (is_immed or (DbTerm*) */ - SysTimeval heir_started; /* To further identify the heir */ + Uint64 heir_started_interval; /* To further identify the heir */ Eterm the_name; /* an atom */ Eterm id; /* atom | integer */ DbTableMethod* meth; /* table methods */ @@ -320,10 +320,10 @@ ERTS_GLB_INLINE int db_eq(DbTableCommon* tb, Eterm a, DbTerm* b) #define DB_INFO (DB_PROTECTED|DB_PUBLIC|DB_PRIVATE) #define ONLY_WRITER(P,T) (((T)->common.status & (DB_PRIVATE|DB_PROTECTED)) \ - && (T)->common.owner == (P)->id) + && (T)->common.owner == (P)->common.id) #define ONLY_READER(P,T) (((T)->common.status & DB_PRIVATE) && \ -(T)->common.owner == (P)->id) +(T)->common.owner == (P)->common.id) /* Function prototypes */ BIF_RETTYPE db_get_trace_control_word(Process* p); @@ -457,7 +457,7 @@ int erts_db_is_compiled_ms(Eterm term); && ERTS_MAGIC_BIN_DESTRUCTOR((BP)) == erts_db_match_prog_destructor) #define Binary2MatchProg(BP) \ - (ASSERT_EXPR(IsMatchProgBinary((BP))), \ + (ASSERT(IsMatchProgBinary((BP))), \ ((MatchProg *) ERTS_MAGIC_BIN_DATA((BP)))) /* ** Debugging diff --git a/erts/emulator/beam/erl_debug.c b/erts/emulator/beam/erl_debug.c index 22e873afc6..50bdc79506 100644 --- a/erts/emulator/beam/erl_debug.c +++ b/erts/emulator/beam/erl_debug.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 1998-2012. All Rights Reserved. + * Copyright Ericsson AB 1998-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -29,6 +29,7 @@ #include "bif.h" #include "beam_catches.h" #include "erl_debug.h" +#include "erl_map.h" #define WITHIN(ptr, x, y) ((x) <= (ptr) && (ptr) < (y)) @@ -252,16 +253,16 @@ void erts_check_stack(Process *p) if (p->stop > stack_start) erl_exit(1, "<%lu.%lu.%lu>: Stack underflow\n", - internal_pid_channel_no(p->id), - internal_pid_number(p->id), - internal_pid_serial(p->id)); + internal_pid_channel_no(p->common.id), + internal_pid_number(p->common.id), + internal_pid_serial(p->common.id)); if (p->stop < stack_end) erl_exit(1, "<%lu.%lu.%lu>: Stack overflow\n", - internal_pid_channel_no(p->id), - internal_pid_number(p->id), - internal_pid_serial(p->id)); + internal_pid_channel_no(p->common.id), + internal_pid_number(p->common.id), + internal_pid_serial(p->common.id)); for (elemp = p->stop; elemp < stack_start; elemp++) { int in_mbuf = 0; @@ -284,9 +285,9 @@ void erts_check_stack(Process *p) erl_exit(1, "<%lu.%lu.%lu>: Wild stack pointer\n", - internal_pid_channel_no(p->id), - internal_pid_number(p->id), - internal_pid_serial(p->id)); + internal_pid_channel_no(p->common.id), + internal_pid_number(p->common.id), + internal_pid_serial(p->common.id)); } } @@ -299,6 +300,9 @@ void erts_check_for_holes(Process* p) ErlHeapFragment* hf; Eterm* start; + if (p->flags & F_DISABLE_GC) + return; + start = p->last_htop ? p->last_htop : HEAP_START(p); check_memory(start, HEAP_TOP(p)); p->last_htop = HEAP_TOP(p); @@ -387,16 +391,16 @@ void verify_process(Process *p) #define VERIFY_AREA(name,ptr,sz) { \ int n = (sz); \ while (n--) if(!verify_eterm(p,*(ptr+n))) \ - erl_exit(1,"Wild pointer found in " name " of %T!\n",p->id); } + erl_exit(1,"Wild pointer found in " name " of %T!\n",p->common.id); } #define VERIFY_ETERM(name,eterm) { \ if(!verify_eterm(p,eterm)) \ - erl_exit(1,"Wild pointer found in " name " of %T!\n",p->id); } + erl_exit(1,"Wild pointer found in " name " of %T!\n",p->common.id); } ErlMessage* mp = p->msg.first; - VERBOSE(DEBUG_MEMORY,("Verify process: %T...\n",p->id)); + VERBOSE(DEBUG_MEMORY,("Verify process: %T...\n",p->common.id)); while (mp != NULL) { VERIFY_ETERM("message term",ERL_MESSAGE_TERM(mp)); @@ -516,7 +520,7 @@ static void print_process_memory(Process *p) ErlHeapFragment* bp = MBUF(p); erts_printf("==============================\n"); - erts_printf("|| Memory info for %T ||\n",p->id); + erts_printf("|| Memory info for %T ||\n",p->common.id); erts_printf("==============================\n"); erts_printf("-- %-*s ---%s-%s-%s-%s--\n", @@ -601,7 +605,7 @@ void print_memory_info(Process *p) { if (p != NULL) { erts_printf("======================================\n"); - erts_printf("|| Memory info for %-12T ||\n",p->id); + erts_printf("|| Memory info for %-12T ||\n",p->common.id); erts_printf("======================================\n"); erts_printf("+- local heap ----%s-%s-%s-%s-+\n", dashes,dashes,dashes,dashes); diff --git a/erts/emulator/beam/erl_driver.h b/erts/emulator/beam/erl_driver.h index 1ae9a211d7..5ced8c5ca0 100644 --- a/erts/emulator/beam/erl_driver.h +++ b/erts/emulator/beam/erl_driver.h @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 1999-2011. All Rights Reserved. + * Copyright Ericsson AB 1999-2014. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -85,12 +85,9 @@ #include "erl_drv_nif.h" #include <stdlib.h> -#include <string.h> /* ssize_t on Mac OS X */ +#include <sys/types.h> /* ssize_t */ -#if defined(VXWORKS) -# include <ioLib.h> -typedef struct iovec SysIOVec; -#elif defined(__WIN32__) || defined(_WIN32) || defined(_WIN32_) +#if defined(__WIN32__) || defined(_WIN32) || defined(_WIN32_) #ifndef STATIC_ERLANG_DRIVER /* Windows dynamic drivers, everything is different... */ #define ERL_DRIVER_TYPES_ONLY @@ -135,10 +132,26 @@ typedef struct { #define DO_WRITE ERL_DRV_WRITE #define ERL_DRV_EXTENDED_MARKER (0xfeeeeeed) -#define ERL_DRV_EXTENDED_MAJOR_VERSION 2 +#define ERL_DRV_EXTENDED_MAJOR_VERSION 3 #define ERL_DRV_EXTENDED_MINOR_VERSION 0 /* + * The emulator will refuse to load a driver with a major version + * lower than ERL_DRV_MIN_REQUIRED_MAJOR_VERSION_ON_LOAD. The load + * may however fail if user have not removed use of deprecated + * symbols. + * + * The ERL_DRV_MIN_REQUIRED_MAJOR_VERSION_ON_LOAD have to allow + * loading of drivers built at least two major OTP releases + * ago. + * + * Bump of major version to 3 happened in OTP 17. That is, in + * OTP 19 we can increase ERL_DRV_MIN_REQUIRED_MAJOR_VERSION_ON_LOAD + * to 3. + */ +#define ERL_DRV_MIN_REQUIRED_MAJOR_VERSION_ON_LOAD 2 + +/* * The emulator will refuse to load a driver with different major * version than the one used by the emulator. */ @@ -157,6 +170,7 @@ typedef struct { #define ERL_DRV_FLAG_USE_PORT_LOCKING (1 << 0) #define ERL_DRV_FLAG_SOFT_BUSY (1 << 1) +#define ERL_DRV_FLAG_NO_BUSY_MSGQ (1 << 2) /* * Integer types @@ -184,7 +198,7 @@ typedef long long ErlDrvSInt64; #error No 64-bit integer type #endif -#if defined(__WIN32__) +#if defined(__WIN32__) || defined(_WIN32) typedef ErlDrvUInt ErlDrvSizeT; typedef ErlDrvSInt ErlDrvSSizeT; #else @@ -210,8 +224,8 @@ typedef struct erl_drv_binary { typedef struct _erl_drv_data* ErlDrvData; /* Data to be used by the driver itself. */ #ifndef ERL_SYS_DRV typedef struct _erl_drv_event* ErlDrvEvent; /* An event to be selected on. */ -typedef struct _erl_drv_port* ErlDrvPort; /* A port descriptor. */ #endif +typedef struct _erl_drv_port* ErlDrvPort; /* A port descriptor. */ typedef struct _erl_drv_port* ErlDrvThreadData; /* Thread data. */ #if !defined(__WIN32__) && !defined(_WIN32) && !defined(_WIN32_) && !defined(USE_SELECT) @@ -273,7 +287,6 @@ typedef struct ErlDrvCond_ ErlDrvCond; typedef struct ErlDrvRWLock_ ErlDrvRWLock; typedef int ErlDrvTSDKey; - /* * */ @@ -367,26 +380,37 @@ typedef struct erl_drv_entry { * It must initialize a ErlDrvEntry structure and return a pointer to it. */ +#ifdef STATIC_ERLANG_DRIVER +# define ERLANG_DRIVER_NAME(NAME) NAME ## _driver_init +#else +# define ERLANG_DRIVER_NAME(NAME) driver_init +#endif + /* For windows dynamic drivers */ #ifndef ERL_DRIVER_TYPES_ONLY -#if defined(VXWORKS) -# define DRIVER_INIT(DRIVER_NAME) \ - ErlDrvEntry* DRIVER_NAME ## _init(void); \ - ErlDrvEntry* DRIVER_NAME ## _init(void) -#elif defined(__WIN32__) +#if defined(__WIN32__) # define DRIVER_INIT(DRIVER_NAME) \ - __declspec(dllexport) ErlDrvEntry* driver_init(void); \ - __declspec(dllexport) ErlDrvEntry* driver_init(void) + __declspec(dllexport) ErlDrvEntry* ERLANG_DRIVER_NAME(DRIVER_NAME)(void); \ + __declspec(dllexport) ErlDrvEntry* ERLANG_DRIVER_NAME(DRIVER_NAME)(void) #else # define DRIVER_INIT(DRIVER_NAME) \ - ErlDrvEntry* driver_init(void); \ - ErlDrvEntry* driver_init(void) + ErlDrvEntry* ERLANG_DRIVER_NAME(DRIVER_NAME)(void); \ + ErlDrvEntry* ERLANG_DRIVER_NAME(DRIVER_NAME)(void) #endif +#define ERL_DRV_BUSY_MSGQ_DISABLED (~((ErlDrvSizeT) 0)) +#define ERL_DRV_BUSY_MSGQ_READ_ONLY ((ErlDrvSizeT) 0) +#define ERL_DRV_BUSY_MSGQ_LIM_MAX (ERL_DRV_BUSY_MSGQ_DISABLED - 1) +#define ERL_DRV_BUSY_MSGQ_LIM_MIN ((ErlDrvSizeT) 1) + /* * These are the functions available for driver writers. */ +EXTERN void erl_drv_busy_msgq_limits(ErlDrvPort port, + ErlDrvSizeT *low, + ErlDrvSizeT *high); + EXTERN int driver_select(ErlDrvPort port, ErlDrvEvent event, int mode, int on); EXTERN int driver_event(ErlDrvPort port, ErlDrvEvent event, ErlDrvEventData event_data); @@ -405,6 +429,11 @@ EXTERN int driver_cancel_timer(ErlDrvPort port); EXTERN int driver_read_timer(ErlDrvPort port, unsigned long *time_left); /* + * Inform runtime system about lengthy work. + */ +EXTERN int erl_drv_consume_timeslice(ErlDrvPort port, int percent); + +/* * Get plain-text error message from within a driver */ EXTERN char* erl_errno_id(int error); @@ -538,6 +567,11 @@ EXTERN int erl_drv_equal_tids(ErlDrvTid tid1, ErlDrvTid tid2); EXTERN void erl_drv_thread_exit(void *resp); EXTERN int erl_drv_thread_join(ErlDrvTid, void **respp); +EXTERN char* erl_drv_mutex_name(ErlDrvMutex *mtx); +EXTERN char* erl_drv_cond_name(ErlDrvCond *cnd); +EXTERN char* erl_drv_rwlock_name(ErlDrvRWLock *rwlck); +EXTERN char* erl_drv_thread_name(ErlDrvTid tid); + /* * Misc. */ @@ -586,6 +620,8 @@ EXTERN int null_func(void); #define ERL_DRV_INT64 ((ErlDrvTermData) 15) /* ErlDrvSInt64 * */ #define ERL_DRV_UINT64 ((ErlDrvTermData) 16) /* ErlDrvUInt64 * */ +#define ERL_DRV_MAP ((ErlDrvTermData) 17) /* ErlDrvUInt */ + #ifndef ERL_DRIVER_TYPES_ONLY /* make terms for driver_output_term and driver_send_term */ @@ -601,25 +637,43 @@ EXTERN ErlDrvPort driver_create_port(ErlDrvPort creator_port, ErlDrvData drv_data); +/* + * driver_output_term() is deprecated, and scheduled for removal in + * OTP-R17. Use erl_drv_output_term() instead. For more information + * see the erl_driver(3) documentation. + */ +EXTERN int driver_output_term(ErlDrvPort ix, + ErlDrvTermData* data, + int len) ERL_DRV_DEPRECATED_FUNC; +/* + * driver_send_term() is deprecated, and scheduled for removal in + * OTP-R17. Use erl_drv_send_term() instead. For more information + * see the erl_driver(3) documentation. + */ +EXTERN int driver_send_term(ErlDrvPort ix, + ErlDrvTermData to, + ErlDrvTermData* data, + int len) ERL_DRV_DEPRECATED_FUNC; + /* output term data to the port owner */ -EXTERN int driver_output_term(ErlDrvPort ix, ErlDrvTermData* data, int len); +EXTERN int erl_drv_output_term(ErlDrvTermData port, + ErlDrvTermData* data, + int len); /* output term data to a specific process */ -EXTERN int driver_send_term(ErlDrvPort ix, ErlDrvTermData to, - ErlDrvTermData* data, int len); +EXTERN int erl_drv_send_term(ErlDrvTermData port, + ErlDrvTermData to, + ErlDrvTermData* data, + int len); /* Async IO functions */ +EXTERN unsigned int driver_async_port_key(ErlDrvPort port); + EXTERN long driver_async(ErlDrvPort ix, unsigned int* key, void (*async_invoke)(void*), void* async_data, void (*async_free)(void*)); -/* - * driver_async_cancel() is deprecated. It is scheduled for removal - * in OTP-R16. For more information see the erl_driver(3) documentation. - */ -EXTERN int driver_async_cancel(unsigned int key) ERL_DRV_DEPRECATED_FUNC; - /* Locks the driver in the machine "forever", there is no unlock function. Note that this is almost never useful, as an open port towards the driver locks it until the port is closed, why unexpected @@ -641,6 +695,16 @@ EXTERN char *driver_dl_error(void); EXTERN int erl_drv_putenv(char *key, char *value); EXTERN int erl_drv_getenv(char *key, char *value, size_t *value_size); +#ifdef __OSE__ +typedef ErlDrvUInt ErlDrvOseEventId; +EXTERN union SIGNAL *erl_drv_ose_get_signal(ErlDrvEvent ev); +EXTERN ErlDrvEvent erl_drv_ose_event_alloc(SIGSELECT sig, ErlDrvOseEventId handle, + ErlDrvOseEventId (*resolve_signal)(union SIGNAL *sig), void *extra); +EXTERN void erl_drv_ose_event_free(ErlDrvEvent ev); +EXTERN void erl_drv_ose_event_fetch(ErlDrvEvent ev, SIGSELECT *sig, + ErlDrvOseEventId *handle, void **extra); +#endif + #endif /* !ERL_DRIVER_TYPES_ONLY */ #ifdef WIN32_DYNAMIC_ERL_DRIVER @@ -651,6 +715,3 @@ EXTERN int erl_drv_getenv(char *key, char *value, size_t *value_size); /* also in global.h, but driver's can't include global.h */ void dtrace_drvport_str(ErlDrvPort port, char *port_buf); - - - diff --git a/erts/emulator/beam/erl_drv_nif.h b/erts/emulator/beam/erl_drv_nif.h index ea013a49a3..3f829ea7ea 100644 --- a/erts/emulator/beam/erl_drv_nif.h +++ b/erts/emulator/beam/erl_drv_nif.h @@ -41,6 +41,13 @@ typedef struct { int suggested_stack_size; } ErlDrvThreadOpts; +#if defined(ERL_DRV_DIRTY_SCHEDULER_SUPPORT) || defined(ERL_NIF_DIRTY_SCHEDULER_SUPPORT) +typedef enum { + ERL_DRV_DIRTY_JOB_CPU_BOUND = 1, + ERL_DRV_DIRTY_JOB_IO_BOUND = 2 +} ErlDrvDirtyJobFlags; +#endif + #endif /* __ERL_DRV_NIF_H__ */ diff --git a/erts/emulator/beam/erl_drv_thread.c b/erts/emulator/beam/erl_drv_thread.c index a49a155701..147249f751 100644 --- a/erts/emulator/beam/erl_drv_thread.c +++ b/erts/emulator/beam/erl_drv_thread.c @@ -78,8 +78,6 @@ struct ErlDrvTid_ { static ethr_tsd_key tid_key; -static ethr_thr_opts def_ethr_opts = ETHR_THR_OPTS_DEFAULT_INITER; - #else /* USE_THREADS */ static Uint tsd_len; static void **tsd; @@ -123,7 +121,7 @@ void erl_drv_thr_init(void) { int i; #ifdef USE_THREADS - int res = ethr_tsd_key_create(&tid_key); + int res = ethr_tsd_key_create(&tid_key,"erts_tid_key"); if (res == 0) res = ethr_install_exit_handler(thread_exit_handler); if (res != 0) @@ -188,6 +186,17 @@ erl_drv_mutex_destroy(ErlDrvMutex *dmtx) #endif } + +char * +erl_drv_mutex_name(ErlDrvMutex *dmtx) +{ +#ifdef USE_THREADS + return dmtx ? dmtx->name : NULL; +#else + return NULL; +#endif +} + int erl_drv_mutex_trylock(ErlDrvMutex *dmtx) { @@ -258,6 +267,15 @@ erl_drv_cond_destroy(ErlDrvCond *dcnd) #endif } +char * +erl_drv_cond_name(ErlDrvCond *dcnd) +{ +#ifdef USE_THREADS + return dcnd ? dcnd->name : NULL; +#else + return NULL; +#endif +} void erl_drv_cond_signal(ErlDrvCond *dcnd) @@ -331,6 +349,16 @@ erl_drv_rwlock_destroy(ErlDrvRWLock *drwlck) #endif } +char * +erl_drv_rwlock_name(ErlDrvRWLock *drwlck) +{ +#ifdef USE_THREADS + return drwlck ? drwlck->name : NULL; +#else + return NULL; +#endif +} + int erl_drv_rwlock_tryrlock(ErlDrvRWLock *drwlck) { @@ -575,6 +603,7 @@ erl_drv_thread_create(char *name, struct ErlDrvTid_ *dtid; ethr_thr_opts ethr_opts; ethr_thr_opts *use_opts; + ethr_thr_opts def_ethr_opts = ETHR_THR_OPTS_DEFAULT_INITER; if (!opts) use_opts = NULL; @@ -617,6 +646,18 @@ erl_drv_thread_create(char *name, #endif } +char * +erl_drv_thread_name(ErlDrvTid tid) +{ +#ifdef USE_THREADS + struct ErlDrvTid_ *dtid = (struct ErlDrvTid_ *) tid; + return dtid ? dtid->name : NULL; +#else + return NULL; +#endif +} + + ErlDrvTid erl_drv_thread_self(void) { diff --git a/erts/emulator/beam/erl_fun.h b/erts/emulator/beam/erl_fun.h index 5c66a0bf73..b673ef6b3c 100644 --- a/erts/emulator/beam/erl_fun.h +++ b/erts/emulator/beam/erl_fun.h @@ -77,8 +77,6 @@ ErlFunEntry* erts_get_fun_entry(Eterm mod, int uniq, int index); ErlFunEntry* erts_put_fun_entry2(Eterm mod, int old_uniq, int old_index, byte* uniq, int index, int arity); -ErlFunEntry* erts_get_fun_entry2(Eterm mod, int old_uniq, int old_index, - byte* uniq, int index, int arity); void erts_erase_fun_entry(ErlFunEntry* fe); void erts_cleanup_funs(ErlFunThing* funp); diff --git a/erts/emulator/beam/erl_gc.c b/erts/emulator/beam/erl_gc.c index e2689f58c3..aa15d2cc57 100644 --- a/erts/emulator/beam/erl_gc.c +++ b/erts/emulator/beam/erl_gc.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 2002-2012. All Rights Reserved. + * Copyright Ericsson AB 2002-2014. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -28,6 +28,7 @@ #include "beam_catches.h" #include "erl_binary.h" #include "erl_bits.h" +#include "erl_map.h" #include "error.h" #include "big.h" #include "erl_gc.h" @@ -47,10 +48,6 @@ */ #define ALENGTH(a) (sizeof(a)/sizeof(a[0])) -static erts_smp_spinlock_t info_lck; -static Uint garbage_cols; /* no of garbage collections */ -static Uint reclaimed; /* no of words reclaimed in GCs */ - # define STACK_SZ_ON_HEAP(p) ((p)->hend - (p)->stop) # define OverRunCheck(P) \ if ((P)->stop < (P)->htop) { \ @@ -59,7 +56,7 @@ static Uint reclaimed; /* no of words reclaimed in GCs */ erts_fprintf(stderr, "htop=%p\n", (p)->htop); \ erts_fprintf(stderr, "heap=%p\n", (p)->heap); \ erl_exit(ERTS_ABORT_EXIT, "%s, line %d: %T: Overrun stack and heap\n", \ - __FILE__,__LINE__,(P)->id); \ + __FILE__,__LINE__,(P)->common.id); \ } #ifdef DEBUG @@ -120,6 +117,8 @@ static void offset_rootset(Process *p, Sint offs, char* area, Uint area_size, static void offset_off_heap(Process* p, Sint offs, char* area, Uint area_size); static void offset_mqueue(Process *p, Sint offs, char* area, Uint area_size); +static void init_gc_info(ErtsGCInfo *gcip); + #ifdef HARDDEBUG static void disallow_heap_frag_ref_in_heap(Process* p); static void disallow_heap_frag_ref_in_old_heap(Process* p); @@ -129,7 +128,7 @@ static void disallow_heap_frag_ref(Process* p, Eterm* n_htop, Eterm* objv, int n #if defined(ARCH_64) && !HALFWORD_HEAP # define MAX_HEAP_SIZES 154 #else -# define MAX_HEAP_SIZES 55 +# define MAX_HEAP_SIZES 59 #endif static Sint heap_sizes[MAX_HEAP_SIZES]; /* Suitable heap sizes. */ @@ -137,13 +136,42 @@ static int num_heap_sizes; /* Number of heap sizes. */ Uint erts_test_long_gc_sleep; /* Only used for testing... */ +typedef struct { + Process *proc; + Eterm ref; + Eterm ref_heap[REF_THING_SIZE]; + Uint req_sched; + erts_smp_atomic32_t refc; +} ErtsGCInfoReq; + +#if !HALFWORD_HEAP +ERTS_SCHED_PREF_QUICK_ALLOC_IMPL(gcireq, + ErtsGCInfoReq, + 5, + ERTS_ALC_T_GC_INFO_REQ) +#else +static ERTS_INLINE ErtsGCInfoReq * +gcireq_alloc(void) +{ + return erts_alloc(ERTS_ALC_T_GC_INFO_REQ, + sizeof(ErtsGCInfoReq)); +} + +static ERTS_INLINE void +gcireq_free(ErtsGCInfoReq *ptr) +{ + erts_free(ERTS_ALC_T_GC_INFO_REQ, ptr); +} +#endif + /* * Initialize GC global data. */ void erts_init_gc(void) { - int i = 0; + int i = 0, ix; + Sint max_heap_size = 0; ASSERT(offsetof(ProcBin,thing_word) == offsetof(struct erl_off_heap_header,thing_word)); ASSERT(offsetof(ProcBin,thing_word) == offsetof(ErlFunThing,thing_word)); @@ -155,9 +183,6 @@ erts_init_gc(void) ASSERT(offsetof(ProcBin,next) == offsetof(ErlFunThing,next)); ASSERT(offsetof(ProcBin,next) == offsetof(ExternalThing,next)); - erts_smp_spinlock_init(&info_lck, "gc_info"); - garbage_cols = 0; - reclaimed = 0; erts_test_long_gc_sleep = 0; /* @@ -168,22 +193,46 @@ erts_init_gc(void) * we really don't want that growth when the heaps are that big. */ - heap_sizes[0] = 34; - heap_sizes[1] = 55; - for (i = 2; i < 23; i++) { - heap_sizes[i] = heap_sizes[i-1] + heap_sizes[i-2]; + /* Growth stage 1 - Fibonacci + 1*/ + /* 12,38 will hit size 233, the old default */ + + heap_sizes[0] = 12; + heap_sizes[1] = 38; + + for(i = 2; i < 23; i++) { + /* one extra word for block header */ + heap_sizes[i] = heap_sizes[i-1] + heap_sizes[i-2] + 1; } + + /* for 32 bit we want max_heap_size to be MAX(32bit) / 4 [words] (and halfword) + * for 64 bit we want max_heap_size to be MAX(52bit) / 8 [words] + */ + + max_heap_size = sizeof(Eterm) < 8 ? (Sint)((~(Uint)0)/(sizeof(Eterm))) : + (Sint)(((Uint64)1 << 53)/sizeof(Eterm)); + + /* Growth stage 2 - 20% growth */ /* At 1.3 mega words heap, we start to slow down. */ for (i = 23; i < ALENGTH(heap_sizes); i++) { - heap_sizes[i] = 5*(heap_sizes[i-1]/4); - if (heap_sizes[i] < 0) { + heap_sizes[i] = heap_sizes[i-1] + heap_sizes[i-1]/5; + if ((heap_sizes[i] < 0) || heap_sizes[i] > max_heap_size) { /* Size turned negative. Discard this last size. */ i--; break; } } num_heap_sizes = i; + + for (ix = 0; ix < erts_no_schedulers; ix++) { + ErtsSchedulerData *esdp = ERTS_SCHEDULER_IX(ix); + init_gc_info(&esdp->gc_info); + } + +#if !HALFWORD_HEAP + init_gcireq_alloc(); +#endif + } /* @@ -216,7 +265,7 @@ erts_next_heap_size(Uint size, Uint offset) low = mid + 1; } } - erl_exit(1, "no next heap size found: %lu, offset %lu\n", (unsigned long)size, (unsigned long)offset); + erl_exit(1, "no next heap size found: %beu, offset %beu\n", size, offset); } return 0; } @@ -272,17 +321,6 @@ erts_heap_sizes(Process* p) return res; } -void -erts_gc_info(ErtsGCInfo *gcip) -{ - if (gcip) { - erts_smp_spin_lock(&info_lck); - gcip->garbage_collections = garbage_cols; - gcip->reclaimed = reclaimed; - erts_smp_spin_unlock(&info_lck); - } -} - void erts_offset_heap(Eterm* hp, Uint sz, Sint offs, Eterm* low, Eterm* high) { @@ -363,18 +401,23 @@ erts_garbage_collect(Process* p, int need, Eterm* objv, int nobj) Uint reclaimed_now = 0; int done = 0; Uint ms1, s1, us1; + ErtsSchedulerData *esdp; #ifdef USE_VM_PROBES DTRACE_CHARBUF(pidbuf, DTRACE_TERM_BUF_SIZE); #endif + + if (p->flags & F_DISABLE_GC) { + ASSERT(need == 0); + return 1; + } + + esdp = erts_get_scheduler_data(); + if (IS_TRACED_FL(p, F_TRACE_GC)) { trace_gc(p, am_gc_start); } - erts_smp_proc_lock(p, ERTS_PROC_LOCK_STATUS); - p->gcstatus = p->status; - p->status = P_GARBING; - erts_smp_proc_unlock(p, ERTS_PROC_LOCK_STATUS); - + erts_smp_atomic32_read_bor_nob(&p->state, ERTS_PSFLG_GC); if (erts_system_monitor_long_gc != 0) { get_now(&ms1, &s1, &us1); } @@ -418,9 +461,8 @@ erts_garbage_collect(Process* p, int need, Eterm* objv, int nobj) ErtsGcQuickSanityCheck(p); - erts_smp_proc_lock(p, ERTS_PROC_LOCK_STATUS); - p->status = p->gcstatus; - erts_smp_proc_unlock(p, ERTS_PROC_LOCK_STATUS); + erts_smp_atomic32_read_band_nob(&p->state, ~ERTS_PSFLG_GC); + if (IS_TRACED_FL(p, F_TRACE_GC)) { trace_gc(p, am_gc_end); } @@ -445,11 +487,9 @@ erts_garbage_collect(Process* p, int need, Eterm* objv, int nobj) monitor_large_heap(p); } - erts_smp_spin_lock(&info_lck); - garbage_cols++; - reclaimed += reclaimed_now; - erts_smp_spin_unlock(&info_lck); - + esdp->gc_info.garbage_cols++; + esdp->gc_info.reclaimed += reclaimed_now; + FLAGS(p) &= ~F_FORCE_GC; #ifdef CHECK_FOR_HOLES @@ -501,13 +541,13 @@ erts_garbage_collect_hibernate(Process* p) Uint area_size; Sint offs; + if (p->flags & F_DISABLE_GC) + ERTS_INTERNAL_ERROR("GC disabled"); + /* * Preliminaries. */ - erts_smp_proc_lock(p, ERTS_PROC_LOCK_STATUS); - p->gcstatus = p->status; - p->status = P_GARBING; - erts_smp_proc_unlock(p, ERTS_PROC_LOCK_STATUS); + erts_smp_atomic32_read_bor_nob(&p->state, ERTS_PSFLG_GC); ErtsGcQuickSanityCheck(p); ASSERT(p->mbuf_sz == 0); ASSERT(p->mbuf == 0); @@ -618,9 +658,7 @@ erts_garbage_collect_hibernate(Process* p) ErtsGcQuickSanityCheck(p); - erts_smp_proc_lock(p, ERTS_PROC_LOCK_STATUS); - p->status = p->gcstatus; - erts_smp_proc_unlock(p, ERTS_PROC_LOCK_STATUS); + erts_smp_atomic32_read_band_nob(&p->state, ~ERTS_PSFLG_GC); } @@ -641,13 +679,12 @@ erts_garbage_collect_literals(Process* p, Eterm* literals, Uint n; struct erl_off_heap_header** prev; + if (p->flags & F_DISABLE_GC) + return; /* * Set GC state. */ - erts_smp_proc_lock(p, ERTS_PROC_LOCK_STATUS); - p->gcstatus = p->status; - p->status = P_GARBING; - erts_smp_proc_unlock(p, ERTS_PROC_LOCK_STATUS); + erts_smp_atomic32_read_bor_nob(&p->state, ERTS_PSFLG_GC); /* * We assume that the caller has already done a major collection @@ -789,9 +826,7 @@ erts_garbage_collect_literals(Process* p, Eterm* literals, /* * Restore status. */ - erts_smp_proc_lock(p, ERTS_PROC_LOCK_STATUS); - p->status = p->gcstatus; - erts_smp_proc_unlock(p, ERTS_PROC_LOCK_STATUS); + erts_smp_atomic32_read_band_nob(&p->state, ~ERTS_PSFLG_GC); } static int @@ -883,14 +918,12 @@ minor_collection(Process* p, int need, Eterm* objv, int nobj, Uint *recl) } } - if (wanted < MIN_HEAP_SIZE(p)) { - wanted = MIN_HEAP_SIZE(p); - } else { - wanted = next_heap_size(p, wanted, 0); - } + wanted = wanted < MIN_HEAP_SIZE(p) ? MIN_HEAP_SIZE(p) + : next_heap_size(p, wanted, 0); if (wanted < HEAP_SIZE(p)) { shrink_new_heap(p, wanted, objv, nobj); } + ASSERT(HEAP_SIZE(p) == next_heap_size(p, HEAP_SIZE(p), 0)); return 1; /* We are done. */ } @@ -1127,7 +1160,7 @@ do_minor(Process *p, Uint new_sz, Eterm* objv, int nobj) old_htop = sweep_one_area(OLD_HTOP(p), old_htop, heap, heap_size); } OLD_HTOP(p) = old_htop; - HIGH_WATER(p) = (HEAP_START(p) != HIGH_WATER(p)) ? n_heap : n_htop; + HIGH_WATER(p) = n_htop; if (MSO(p).first) { sweep_off_heap(p, 0); @@ -1449,11 +1482,10 @@ adjust_after_fullsweep(Process *p, Uint size_before, int need, Eterm *objv, int I think this is better as fullsweep is used mainly on small memory systems, but I could be wrong... */ wanted = 2 * need_after; - if (wanted < p->min_heap_size) { - sz = p->min_heap_size; - } else { - sz = next_heap_size(p, wanted, 0); - } + + sz = wanted < p->min_heap_size ? p->min_heap_size + : next_heap_size(p, wanted, 0); + if (sz < HEAP_SIZE(p)) { shrink_new_heap(p, sz, objv, nobj); } @@ -1961,9 +1993,9 @@ setup_rootset(Process *p, Eterm *objv, int nobj, Rootset *rootset) n++; } #endif - ASSERT(is_nil(p->tracer_proc) || - is_internal_pid(p->tracer_proc) || - is_internal_port(p->tracer_proc)); + ASSERT(is_nil(ERTS_TRACER_PROC(p)) || + is_internal_pid(ERTS_TRACER_PROC(p)) || + is_internal_port(ERTS_TRACER_PROC(p))); ASSERT(is_pid(follow_moved(p->group_leader))); if (is_not_immed(p->group_leader)) { @@ -2523,6 +2555,7 @@ offset_one_rootset(Process *p, Sint offs, char* area, Uint area_size, p->dictionary->used, offs, area, area_size); } + offset_heap_ptr(&p->fvalue, 1, offs, area, area_size); offset_heap_ptr(&p->ftrace, 1, offs, area, area_size); offset_heap_ptr(&p->seq_trace_token, 1, offs, area, area_size); @@ -2546,6 +2579,110 @@ offset_rootset(Process *p, Sint offs, char* area, Uint area_size, offset_one_rootset(p, offs, area, area_size, objv, nobj); } +static void +init_gc_info(ErtsGCInfo *gcip) +{ + gcip->reclaimed = 0; + gcip->garbage_cols = 0; +} + +static void +reply_gc_info(void *vgcirp) +{ + Uint64 reclaimed = 0, garbage_cols = 0; + ErtsSchedulerData *esdp = erts_get_scheduler_data(); + ErtsGCInfoReq *gcirp = (ErtsGCInfoReq *) vgcirp; + ErtsProcLocks rp_locks = (gcirp->req_sched == esdp->no + ? ERTS_PROC_LOCK_MAIN + : 0); + Process *rp = gcirp->proc; + Eterm ref_copy = NIL, msg; + Eterm *hp = NULL; + Eterm **hpp; + Uint sz, *szp; + ErlOffHeap *ohp = NULL; + ErlHeapFragment *bp = NULL; + + ASSERT(esdp); + + reclaimed = esdp->gc_info.reclaimed; + garbage_cols = esdp->gc_info.garbage_cols; + + sz = 0; + hpp = NULL; + szp = &sz; + + while (1) { + if (hpp) + ref_copy = STORE_NC(hpp, ohp, gcirp->ref); + else + *szp += REF_THING_SIZE; + + msg = erts_bld_tuple(hpp, szp, 3, + make_small(esdp->no), + erts_bld_uint64(hpp, szp, garbage_cols), + erts_bld_uint64(hpp, szp, reclaimed)); + + msg = erts_bld_tuple(hpp, szp, 2, ref_copy, msg); + if (hpp) + break; + + hp = erts_alloc_message_heap(sz, &bp, &ohp, rp, &rp_locks); + szp = NULL; + hpp = &hp; + } + + erts_queue_message(rp, &rp_locks, bp, msg, NIL +#ifdef USE_VM_PROBES + , NIL +#endif + ); + + if (gcirp->req_sched == esdp->no) + rp_locks &= ~ERTS_PROC_LOCK_MAIN; + + if (rp_locks) + erts_smp_proc_unlock(rp, rp_locks); + + erts_smp_proc_dec_refc(rp); + + if (erts_smp_atomic32_dec_read_nob(&gcirp->refc) == 0) + gcireq_free(vgcirp); +} + +Eterm +erts_gc_info_request(Process *c_p) +{ + ErtsSchedulerData *esdp = ERTS_PROC_GET_SCHDATA(c_p); + Eterm ref; + ErtsGCInfoReq *gcirp; + Eterm *hp; + + gcirp = gcireq_alloc(); + ref = erts_make_ref(c_p); + hp = &gcirp->ref_heap[0]; + + gcirp->proc = c_p; + gcirp->ref = STORE_NC(&hp, NULL, ref); + gcirp->req_sched = esdp->no; + erts_smp_atomic32_init_nob(&gcirp->refc, + (erts_aint32_t) erts_no_schedulers); + + erts_smp_proc_add_refc(c_p, (Sint32) erts_no_schedulers); + +#ifdef ERTS_SMP + if (erts_no_schedulers > 1) + erts_schedule_multi_misc_aux_work(1, + erts_no_schedulers, + reply_gc_info, + (void *) gcirp); +#endif + + reply_gc_info((void *) gcirp); + + return ref; +} + #if defined(DEBUG) || defined(ERTS_OFFHEAP_DEBUG) static int @@ -2631,7 +2768,7 @@ erts_check_off_heap2(Process *p, Eterm *htop) refc = erts_refc_read(&u.ext->node->refc, 1); break; default: - ASSERT(!!"erts_check_off_heap2: Invalid thing_word"); + ASSERT(!"erts_check_off_heap2: Invalid thing_word"); } ERTS_CHK_OFFHEAP_ASSERT(refc >= 1); #ifdef ERTS_OFFHEAP_DEBUG_CHK_CIRCULAR_LIST diff --git a/erts/emulator/beam/erl_gc.h b/erts/emulator/beam/erl_gc.h index 1801df359a..5203dda263 100644 --- a/erts/emulator/beam/erl_gc.h +++ b/erts/emulator/beam/erl_gc.h @@ -20,6 +20,8 @@ #ifndef __ERL_GC_H__ #define __ERL_GC_H__ +#include "erl_map.h" + /* GC declarations shared by beam/erl_gc.c and hipe/hipe_gc.c */ #if defined(DEBUG) && !ERTS_GLB_INLINE_INCL_FUNC_DEF @@ -42,23 +44,24 @@ do { \ HTOP += 2; /* update tospace htop */ \ } while(0) -#define MOVE_BOXED(PTR,HDR,HTOP,ORIG) \ -do { \ - Eterm gval; \ - Sint nelts; \ - \ - ASSERT(is_header(HDR)); \ - gval = make_boxed(HTOP); \ - *ORIG = gval; \ - *HTOP++ = HDR; \ - *PTR++ = gval; \ - nelts = header_arity(HDR); \ - switch ((HDR) & _HEADER_SUBTAG_MASK) { \ - case SUB_BINARY_SUBTAG: nelts++; break; \ - case FUN_SUBTAG: nelts+=((ErlFunThing*)(PTR-1))->num_free+1; break; \ - } \ - while (nelts--) \ - *HTOP++ = *PTR++; \ +#define MOVE_BOXED(PTR,HDR,HTOP,ORIG) \ +do { \ + Eterm gval; \ + Sint nelts; \ + \ + ASSERT(is_header(HDR)); \ + nelts = header_arity(HDR); \ + switch ((HDR) & _HEADER_SUBTAG_MASK) { \ + case SUB_BINARY_SUBTAG: nelts++; break; \ + case MAP_SUBTAG: nelts+=map_get_size(PTR) + 1; break; \ + case FUN_SUBTAG: nelts+=((ErlFunThing*)(PTR))->num_free+1; break; \ + } \ + gval = make_boxed(HTOP); \ + *ORIG = gval; \ + *HTOP++ = HDR; \ + *PTR++ = gval; \ + while (nelts--) *HTOP++ = *PTR++; \ + \ } while(0) #define in_area(ptr,start,nbytes) \ diff --git a/erts/emulator/beam/erl_goodfit_alloc.c b/erts/emulator/beam/erl_goodfit_alloc.c index e7d4ac2b67..e9d8249ee1 100644 --- a/erts/emulator/beam/erl_goodfit_alloc.c +++ b/erts/emulator/beam/erl_goodfit_alloc.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 2003-2011. All Rights Reserved. + * Copyright Ericsson AB 2003-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -163,10 +163,10 @@ BKT_MIN_SZ(GFAllctr_t *gfallctr, int ix) /* Prototypes of callback functions */ static Block_t * get_free_block (Allctr_t *, Uint, - Block_t *, Uint, Uint32); -static void link_free_block (Allctr_t *, Block_t *, Uint32); -static void unlink_free_block (Allctr_t *, Block_t *, Uint32); -static void update_last_aux_mbc (Allctr_t *, Carrier_t *, Uint32); + Block_t *, Uint); +static void link_free_block (Allctr_t *, Block_t *); +static void unlink_free_block (Allctr_t *, Block_t *); +static void update_last_aux_mbc (Allctr_t *, Carrier_t *); static Eterm info_options (Allctr_t *, char *, int *, void *, Uint **, Uint *); static void init_atoms (void); @@ -203,8 +203,6 @@ erts_gfalc_start(GFAllctr_t *gfallctr, sys_memcpy((void *) gfallctr, (void *) &zero.allctr, sizeof(GFAllctr_t)); - init->sbmbct = 0; /* Small mbc not yet supported by goodfit */ - allctr->mbc_header_size = sizeof(Carrier_t); allctr->min_mbc_size = MIN_MBC_SZ; allctr->min_mbc_first_free_size = MIN_MBC_FIRST_FREE_SZ; @@ -223,7 +221,9 @@ erts_gfalc_start(GFAllctr_t *gfallctr, allctr->get_next_mbc_size = NULL; allctr->creating_mbc = update_last_aux_mbc; allctr->destroying_mbc = update_last_aux_mbc; - + allctr->add_mbc = NULL; + allctr->remove_mbc = NULL; + allctr->largest_fblk_in_mbc = NULL; allctr->init_atoms = init_atoms; #ifdef ERTS_ALLOC_UTIL_HARD_DEBUG @@ -363,7 +363,7 @@ search_bucket(Allctr_t *allctr, int ix, Uint size) blk && i < max_blk_search; blk = blk->next, i++) { - blk_sz = BLK_SZ(blk); + blk_sz = MBC_FBLK_SZ(&blk->block_head); blk_on_lambc = (((char *) blk) < gfallctr->last_aux_mbc_end && gfallctr->last_aux_mbc_start <= ((char *) blk)); @@ -385,7 +385,7 @@ search_bucket(Allctr_t *allctr, int ix, Uint size) static Block_t * get_free_block(Allctr_t *allctr, Uint size, - Block_t *cand_blk, Uint cand_size, Uint32 flags) + Block_t *cand_blk, Uint cand_size) { GFAllctr_t *gfallctr = (GFAllctr_t *) allctr; int unsafe_bi, min_bi; @@ -402,9 +402,9 @@ get_free_block(Allctr_t *allctr, Uint size, if (min_bi == unsafe_bi) { blk = search_bucket(allctr, min_bi, size); if (blk) { - if (cand_blk && cand_size <= BLK_SZ(blk)) + if (cand_blk && cand_size <= MBC_FBLK_SZ(blk)) return NULL; /* cand_blk was better */ - unlink_free_block(allctr, blk, flags); + unlink_free_block(allctr, blk); return blk; } if (min_bi < NO_OF_BKTS - 1) { @@ -422,20 +422,20 @@ get_free_block(Allctr_t *allctr, Uint size, /* We are guaranteed to find a block that fits in this bucket */ blk = search_bucket(allctr, min_bi, size); ASSERT(blk); - if (cand_blk && cand_size <= BLK_SZ(blk)) + if (cand_blk && cand_size <= MBC_FBLK_SZ(blk)) return NULL; /* cand_blk was better */ - unlink_free_block(allctr, blk, flags); + unlink_free_block(allctr, blk); return blk; } static void -link_free_block(Allctr_t *allctr, Block_t *block, Uint32 flags) +link_free_block(Allctr_t *allctr, Block_t *block) { GFAllctr_t *gfallctr = (GFAllctr_t *) allctr; GFFreeBlock_t *blk = (GFFreeBlock_t *) block; - Uint sz = BLK_SZ(blk); + Uint sz = MBC_FBLK_SZ(&blk->block_head); int i = BKT_IX(gfallctr, sz); ASSERT(sz >= MIN_BLK_SZ); @@ -452,11 +452,11 @@ link_free_block(Allctr_t *allctr, Block_t *block, Uint32 flags) } static void -unlink_free_block(Allctr_t *allctr, Block_t *block, Uint32 flags) +unlink_free_block(Allctr_t *allctr, Block_t *block) { GFAllctr_t *gfallctr = (GFAllctr_t *) allctr; GFFreeBlock_t *blk = (GFFreeBlock_t *) block; - Uint sz = BLK_SZ(blk); + Uint sz = MBC_FBLK_SZ(&blk->block_head); int i = BKT_IX(gfallctr, sz); if (!blk->prev) { @@ -473,7 +473,7 @@ unlink_free_block(Allctr_t *allctr, Block_t *block, Uint32 flags) } static void -update_last_aux_mbc(Allctr_t *allctr, Carrier_t *mbc, Uint32 flags) +update_last_aux_mbc(Allctr_t *allctr, Carrier_t *mbc) { GFAllctr_t *gfallctr = (GFAllctr_t *) allctr; @@ -590,16 +590,16 @@ info_options(Allctr_t *allctr, * to erts_gfalc_test() * \* */ -unsigned long -erts_gfalc_test(unsigned long op, unsigned long a1, unsigned long a2) +UWord +erts_gfalc_test(UWord op, UWord a1, UWord a2) { switch (op) { - case 0x100: return (unsigned long) BKT_IX((GFAllctr_t *) a1, (Uint) a2); - case 0x101: return (unsigned long) BKT_MIN_SZ((GFAllctr_t *) a1, (int) a2); - case 0x102: return (unsigned long) NO_OF_BKTS; - case 0x103: return (unsigned long) + case 0x100: return (UWord) BKT_IX((GFAllctr_t *) a1, (Uint) a2); + case 0x101: return (UWord) BKT_MIN_SZ((GFAllctr_t *) a1, (int) a2); + case 0x102: return (UWord) NO_OF_BKTS; + case 0x103: return (UWord) find_bucket(&((GFAllctr_t *) a1)->bucket_mask, (int) a2); - default: ASSERT(0); return ~((unsigned long) 0); + default: ASSERT(0); return ~((UWord) 0); } } @@ -618,7 +618,7 @@ check_block(Allctr_t *allctr, Block_t * blk, int free_block) GFFreeBlock_t *fblk; if(free_block) { - Uint blk_sz = BLK_SZ(blk); + Uint blk_sz = is_sbc_blk(blk) ? SBC_BLK_SZ(blk) : MBC_BLK_SZ(blk); bi = BKT_IX(gfallctr, blk_sz); ASSERT(gfallctr->bucket_mask.main & (((UWord) 1) << IX2SMIX(bi))); diff --git a/erts/emulator/beam/erl_goodfit_alloc.h b/erts/emulator/beam/erl_goodfit_alloc.h index a554a6f466..385de0da23 100644 --- a/erts/emulator/beam/erl_goodfit_alloc.h +++ b/erts/emulator/beam/erl_goodfit_alloc.h @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 2003-2010. All Rights Reserved. + * Copyright Ericsson AB 2003-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -82,7 +82,7 @@ struct GFAllctr_t_ { }; -unsigned long erts_gfalc_test(unsigned long, unsigned long, unsigned long); +UWord erts_gfalc_test(UWord, UWord, UWord); #endif /* #if defined(GET_ERL_GF_ALLOC_IMPL) && !defined(ERL_GF_ALLOC_IMPL__) */ diff --git a/erts/emulator/beam/erl_init.c b/erts/emulator/beam/erl_init.c index 1eb3dba240..88c4006934 100644 --- a/erts/emulator/beam/erl_init.c +++ b/erts/emulator/beam/erl_init.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 1997-2012. All Rights Reserved. + * Copyright Ericsson AB 1997-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -44,6 +44,7 @@ #include "erl_thr_progress.h" #include "erl_thr_queue.h" #include "erl_async.h" +#include "erl_ptab.h" #ifdef HIPE #include "hipe_mode_switch.h" /* for hipe_mode_switch_init() */ @@ -54,6 +55,68 @@ # include <sys/resource.h> #endif +#define ERTS_DEFAULT_NO_ASYNC_THREADS 10 + +/* + * The variables below (prefixed with etp_) are for erts/etc/unix/etp-commands + * only. Do not remove even though they aren't used elsewhere in the emulator! + */ +#ifdef ERTS_SMP +const int etp_smp_compiled = 1; +#else +const int etp_smp_compiled = 0; +#endif +#ifdef USE_THREADS +const int etp_thread_compiled = 1; +#else +const int etp_thread_compiled = 0; +#endif +const char etp_erts_version[] = ERLANG_VERSION; +const char etp_otp_release[] = ERLANG_OTP_RELEASE; +const char etp_compile_date[] = ERLANG_COMPILE_DATE; +const char etp_arch[] = ERLANG_ARCHITECTURE; +#ifdef ERTS_ENABLE_KERNEL_POLL +const int etp_kernel_poll_support = 1; +#else +const int etp_kernel_poll_support = 0; +#endif +#if defined(ARCH_64) +const int etp_arch_bits = 64; +#elif defined(ARCH_32) +const int etp_arch_bits = 32; +#else +# error "Not 64-bit, nor 32-bit arch" +#endif +#if HALFWORD_HEAP +const int etp_halfword = 1; +#else +const int etp_halfword = 0; +#endif +#ifdef HIPE +const int etp_hipe = 1; +#else +const int etp_hipe = 0; +#endif +#ifdef DEBUG +const int etp_debug_compiled = 1; +#else +const int etp_debug_compiled = 0; +#endif +#ifdef ERTS_ENABLE_LOCK_COUNT +const int etp_lock_count = 1; +#else +const int etp_lock_count = 0; +#endif +#ifdef ERTS_ENABLE_LOCK_CHECK +const int etp_lock_check = 1; +#else +const int etp_lock_check = 0; +#endif +#ifdef WORDS_BIGENDIAN +const int etp_big_endian = 1; +#else +const int etp_big_endian = 0; +#endif /* * Note about VxWorks: All variables must be initialized by executable code, * not by an initializer. Otherwise a new instance of the emulator will @@ -66,9 +129,12 @@ extern void ConNormalExit(void); extern void ConWaitForExit(void); #endif -static void erl_init(int ncpu); - -#define ERTS_MIN_COMPAT_REL 7 +static void erl_init(int ncpu, + int proc_tab_sz, + int legacy_proc_tab, + int port_tab_sz, + int port_tab_sz_ignore_files, + int legacy_port_tab); static erts_atomic_t exiting; @@ -112,6 +178,11 @@ int erts_compat_rel; static int no_schedulers; static int no_schedulers_online; +#ifdef ERTS_DIRTY_SCHEDULERS +static int no_dirty_cpu_schedulers; +static int no_dirty_cpu_schedulers_online; +static int no_dirty_io_schedulers; +#endif #ifdef DEBUG Uint32 verbose; /* See erl_debug.h for information about verbose */ @@ -151,8 +222,6 @@ ErtsModifiedTimings erts_modified_timings[] = { Export *erts_delay_trap = NULL; -int erts_use_r9_pids_ports; - int ignore_break; int replace_intr; @@ -216,31 +285,47 @@ void erts_short_init(void) { int ncpu = early_init(NULL, NULL); - erl_init(ncpu); + erl_init(ncpu, + ERTS_DEFAULT_MAX_PROCESSES, + 0, + ERTS_DEFAULT_MAX_PORTS, + 0, + 0); erts_initialized = 1; } static void -erl_init(int ncpu) +erl_init(int ncpu, + int proc_tab_sz, + int legacy_proc_tab, + int port_tab_sz, + int port_tab_sz_ignore_files, + int legacy_port_tab) { init_benchmarking(); erts_init_monitors(); - erts_init_gc(); erts_init_time(); erts_init_sys_common_misc(); - erts_init_process(ncpu); + erts_init_process(ncpu, proc_tab_sz, legacy_proc_tab); erts_init_scheduling(no_schedulers, - no_schedulers_online); + no_schedulers_online +#ifdef ERTS_DIRTY_SCHEDULERS + , no_dirty_cpu_schedulers, + no_dirty_cpu_schedulers_online, + no_dirty_io_schedulers +#endif + ); erts_init_cpu_topology(); /* Must be after init_scheduling */ + erts_init_gc(); /* Must be after init_scheduling */ erts_alloc_late_init(); H_MIN_SIZE = erts_next_heap_size(H_MIN_SIZE, 0); BIN_VH_MIN_SIZE = erts_next_heap_size(BIN_VH_MIN_SIZE, 0); erts_init_trace(); - erts_init_binary(); erts_init_bits(); + erts_code_ix_init(); erts_init_fun_table(); init_atom_table(); init_export_table(); @@ -250,6 +335,8 @@ erl_init(int ncpu) erts_bif_info_init(); erts_ddll_init(); init_emulator(); + erts_ptab_init(); /* Must be after init_emulator() */ + erts_init_binary(); /* Must be after init_emulator() */ erts_bp_init(); init_db(); /* Must be after init_emulator */ erts_bif_timer_init(); @@ -257,13 +344,14 @@ erl_init(int ncpu) init_dist(); erl_drv_thr_init(); erts_init_async(); - init_io(); + erts_init_io(port_tab_sz, port_tab_sz_ignore_files, legacy_port_tab); init_load(); erts_init_bif(); erts_init_bif_chksum(); erts_init_bif_binary(); erts_init_bif_re(); erts_init_unicode(); /* after RE to get access to PCRE unicode */ + erts_init_external(); erts_delay_trap = erts_export_put(am_erlang, am_delay_trap, 2); erts_late_init_process(); #if HAVE_ERTS_MSEG @@ -288,8 +376,9 @@ erl_first_process_otp(char* modname, void* code, unsigned size, int argc, char** ErlSpawnOpts so; Eterm env; - start_mod = am_atom_put(modname, sys_strlen(modname)); - if (erts_find_function(start_mod, am_start, 2) == NULL) { + start_mod = erts_atom_put((byte *) modname, sys_strlen(modname), ERTS_ATOM_ENC_LATIN1, 1); + if (erts_find_function(start_mod, am_start, 2, + erts_active_code_ix()) == NULL) { erl_exit(5, "No function %s:start/2\n", modname); } @@ -384,11 +473,11 @@ load_preloaded(void) i = 0; while ((name = preload_p[i].name) != NULL) { length = preload_p[i].size; - module_name = am_atom_put(name, sys_strlen(name)); + module_name = erts_atom_put((byte *) name, sys_strlen(name), ERTS_ATOM_ENC_LATIN1, 1); if ((code = sys_preload_begin(&preload_p[i])) == 0) erl_exit(1, "Failed to find preloaded code for module %s\n", name); - res = erts_load_module(NULL, 0, NIL, &module_name, code, length); + res = erts_preload_module(NULL, 0, NIL, &module_name, code, length); sys_preload_end(&preload_p[i]); if (res != NIL) erl_exit(1,"Failed loading preloaded module %s (%T)\n", @@ -400,87 +489,113 @@ load_preloaded(void) /* be helpful (or maybe downright rude:-) */ void erts_usage(void) { + int this_rel = this_rel_num(); erts_fprintf(stderr, "Usage: %s [flags] [ -- [init_args] ]\n", progname(program)); erts_fprintf(stderr, "The flags are:\n\n"); /* erts_fprintf(stderr, "-# number set the number of items to be used in traces etc\n"); */ - erts_fprintf(stderr, "-a size suggested stack size in kilo words for threads\n"); - erts_fprintf(stderr, " in the async-thread pool, valid range is [%d-%d]\n", + erts_fprintf(stderr, "-a size suggested stack size in kilo words for threads\n"); + erts_fprintf(stderr, " in the async-thread pool, valid range is [%d-%d]\n", ERTS_ASYNC_THREAD_MIN_STACK_SIZE, ERTS_ASYNC_THREAD_MAX_STACK_SIZE); - erts_fprintf(stderr, "-A number set number of threads in async thread pool,\n"); - erts_fprintf(stderr, " valid range is [0-%d]\n", + erts_fprintf(stderr, "-A number set number of threads in async thread pool,\n"); + erts_fprintf(stderr, " valid range is [0-%d]\n", ERTS_MAX_NO_OF_ASYNC_THREADS); - erts_fprintf(stderr, "-B[c|d|i] c to have Ctrl-c interrupt the Erlang shell,\n"); - erts_fprintf(stderr, " d (or no extra option) to disable the break\n"); - erts_fprintf(stderr, " handler, i to ignore break signals\n"); + erts_fprintf(stderr, "-B[c|d|i] c to have Ctrl-c interrupt the Erlang shell,\n"); + erts_fprintf(stderr, " d (or no extra option) to disable the break\n"); + erts_fprintf(stderr, " handler, i to ignore break signals\n"); /* erts_fprintf(stderr, "-b func set the boot function (default boot)\n"); */ - erts_fprintf(stderr, "-c disable continuous date/time correction with\n"); - erts_fprintf(stderr, " respect to uptime\n"); + erts_fprintf(stderr, "-c disable continuous date/time correction with\n"); + erts_fprintf(stderr, " respect to uptime\n"); - erts_fprintf(stderr, "-d don't write a crash dump for internally detected errors\n"); - erts_fprintf(stderr, " (halt(String) will still produce a crash dump)\n"); - - erts_fprintf(stderr, "-hms size set minimum heap size in words (default %d)\n", + erts_fprintf(stderr, "-d don't write a crash dump for internally detected errors\n"); + erts_fprintf(stderr, " (halt(String) will still produce a crash dump)\n"); + erts_fprintf(stderr, "-fn[u|a|l] Control how filenames are interpreted\n"); + erts_fprintf(stderr, "-hms size set minimum heap size in words (default %d)\n", H_DEFAULT_SIZE); - erts_fprintf(stderr, "-hmbs size set minimum binary virtual heap size in words (default %d)\n", + erts_fprintf(stderr, "-hmbs size set minimum binary virtual heap size in words (default %d)\n", VH_DEFAULT_SIZE); /* erts_fprintf(stderr, "-i module set the boot module (default init)\n"); */ - erts_fprintf(stderr, "-K boolean enable or disable kernel poll\n"); - - erts_fprintf(stderr, "-M<X> <Y> memory allocator switches,\n"); - erts_fprintf(stderr, " see the erts_alloc(3) documentation for more info.\n"); - - erts_fprintf(stderr, "-P number set maximum number of processes on this node,\n"); - erts_fprintf(stderr, " valid range is [%d-%d]\n", - ERTS_MIN_PROCESSES, ERTS_MAX_PROCESSES); - erts_fprintf(stderr, "-R number set compatibility release number,\n"); - erts_fprintf(stderr, " valid range [%d-%d]\n", - ERTS_MIN_COMPAT_REL, this_rel_num()); - - erts_fprintf(stderr, "-r force ets memory block to be moved on realloc\n"); - erts_fprintf(stderr, "-rg amount set reader groups limit\n"); - erts_fprintf(stderr, "-sbt type set scheduler bind type, valid types are:\n"); - erts_fprintf(stderr, " u|ns|ts|ps|s|nnts|nnps|tnnps|db\n"); - erts_fprintf(stderr, "-sbwt val set scheduler busy wait threshold, valid values are:\n"); - erts_fprintf(stderr, " none|very_short|short|medium|long|very_long.\n"); - erts_fprintf(stderr, "-scl bool enable/disable compaction of scheduler load,\n"); - erts_fprintf(stderr, " see the erl(1) documentation for more info.\n"); - erts_fprintf(stderr, "-sct cput set cpu topology,\n"); - erts_fprintf(stderr, " see the erl(1) documentation for more info.\n"); - erts_fprintf(stderr, "-sws val set scheduler wakeup strategy, valid values are:\n"); - erts_fprintf(stderr, " default|legacy|proposal.\n"); - erts_fprintf(stderr, "-swt val set scheduler wakeup threshold, valid values are:\n"); - erts_fprintf(stderr, " very_low|low|medium|high|very_high.\n"); - erts_fprintf(stderr, "-sss size suggested stack size in kilo words for scheduler threads,\n"); - erts_fprintf(stderr, " valid range is [%d-%d]\n", + erts_fprintf(stderr, "-K boolean enable or disable kernel poll\n"); + erts_fprintf(stderr, "-n[s|a|d] Control behavior of signals to ports\n"); + erts_fprintf(stderr, " Note that this flag is deprecated!\n"); + erts_fprintf(stderr, "-M<X> <Y> memory allocator switches,\n"); + erts_fprintf(stderr, " see the erts_alloc(3) documentation for more info.\n"); + erts_fprintf(stderr, "-pc <set> Control what characters are considered printable (default latin1)\n"); + erts_fprintf(stderr, "-P number set maximum number of processes on this node,\n"); + erts_fprintf(stderr, " valid range is [%d-%d]\n", + ERTS_MIN_PROCESSES, ERTS_MAX_PROCESSES); + erts_fprintf(stderr, "-Q number set maximum number of ports on this node,\n"); + erts_fprintf(stderr, " valid range is [%d-%d]\n", + ERTS_MIN_PORTS, ERTS_MAX_PORTS); + erts_fprintf(stderr, "-R number set compatibility release number,\n"); + erts_fprintf(stderr, " valid range [%d-%d]\n", + this_rel-2, this_rel); + + erts_fprintf(stderr, "-r force ets memory block to be moved on realloc\n"); + erts_fprintf(stderr, "-rg amount set reader groups limit\n"); + erts_fprintf(stderr, "-sbt type set scheduler bind type, valid types are:\n"); + erts_fprintf(stderr, "-stbt type u|ns|ts|ps|s|nnts|nnps|tnnps|db\n"); + erts_fprintf(stderr, "-sbwt val set scheduler busy wait threshold, valid values are:\n"); + erts_fprintf(stderr, " none|very_short|short|medium|long|very_long.\n"); + erts_fprintf(stderr, "-scl bool enable/disable compaction of scheduler load,\n"); + erts_fprintf(stderr, " see the erl(1) documentation for more info.\n"); + erts_fprintf(stderr, "-sct cput set cpu topology,\n"); + erts_fprintf(stderr, " see the erl(1) documentation for more info.\n"); +#if ERTS_HAVE_SCHED_UTIL_BALANCING_SUPPORT_OPT + erts_fprintf(stderr, "-sub bool enable/disable scheduler utilization balancing,\n"); +#else + erts_fprintf(stderr, "-sub false disable scheduler utilization balancing,\n"); +#endif + erts_fprintf(stderr, " see the erl(1) documentation for more info.\n"); + erts_fprintf(stderr, "-sws val set scheduler wakeup strategy, valid values are:\n"); + erts_fprintf(stderr, " default|legacy.\n"); + erts_fprintf(stderr, "-swct val set scheduler wake cleanup threshold, valid values are:\n"); + erts_fprintf(stderr, " very_lazy|lazy|medium|eager|very_eager.\n"); + erts_fprintf(stderr, "-swt val set scheduler wakeup threshold, valid values are:\n"); + erts_fprintf(stderr, " very_low|low|medium|high|very_high.\n"); + erts_fprintf(stderr, "-sss size suggested stack size in kilo words for scheduler threads,\n"); + erts_fprintf(stderr, " valid range is [%d-%d]\n", ERTS_SCHED_THREAD_MIN_STACK_SIZE, ERTS_SCHED_THREAD_MAX_STACK_SIZE); - erts_fprintf(stderr, "-S n1:n2 set number of schedulers (n1), and number of\n"); - erts_fprintf(stderr, " schedulers online (n2), valid range for both\n"); - erts_fprintf(stderr, " numbers are [1-%d]\n", + erts_fprintf(stderr, "-spp Bool set port parallelism scheduling hint\n"); + erts_fprintf(stderr, "-S n1:n2 set number of schedulers (n1), and number of\n"); + erts_fprintf(stderr, " schedulers online (n2), maximum for both\n"); + erts_fprintf(stderr, " numbers is %d\n", ERTS_MAX_NO_OF_SCHEDULERS); - erts_fprintf(stderr, "-t size set the maximum number of atoms the " - "emulator can handle\n"); - erts_fprintf(stderr, " valid range is [%d-%d]\n", + erts_fprintf(stderr, "-SP p1:p2 specify schedulers (p1) and schedulers online (p2)\n"); + erts_fprintf(stderr, " as percentages of logical processors configured and logical\n"); + erts_fprintf(stderr, " processors available, respectively\n"); +#ifdef ERTS_DIRTY_SCHEDULERS + erts_fprintf(stderr, "-SDcpu n1:n2 set number of dirty CPU schedulers (n1), and number of\n"); + erts_fprintf(stderr, " dirty CPU schedulers online (n2), valid range for both\n"); + erts_fprintf(stderr, " numbers is [1-%d], and n2 must be less than or equal to n1\n", + ERTS_MAX_NO_OF_DIRTY_CPU_SCHEDULERS); + erts_fprintf(stderr, "-SDPcpu p1:p2 specify dirty CPU schedulers (p1) and dirty CPU schedulers\n"); + erts_fprintf(stderr, " online (p2) as percentages of logical processors configured\n"); + erts_fprintf(stderr, " and logical processors available, respectively\n"); + erts_fprintf(stderr, "-SDio n set number of dirty I/O schedulers, valid range is [0-%d]\n", + ERTS_MAX_NO_OF_DIRTY_IO_SCHEDULERS); +#endif + erts_fprintf(stderr, "-t size set the maximum number of atoms the emulator can handle\n"); + erts_fprintf(stderr, " valid range is [%d-%d]\n", MIN_ATOM_TABLE_SIZE, MAX_ATOM_TABLE_SIZE); - erts_fprintf(stderr, "-T number set modified timing level,\n"); - erts_fprintf(stderr, " valid range is [0-%d]\n", + erts_fprintf(stderr, "-T number set modified timing level, valid range is [0-%d]\n", ERTS_MODIFIED_TIMING_LEVELS-1); - erts_fprintf(stderr, "-V print Erlang version\n"); + erts_fprintf(stderr, "-V print Erlang version\n"); - erts_fprintf(stderr, "-v turn on chatty mode (GCs will be reported etc)\n"); + erts_fprintf(stderr, "-v turn on chatty mode (GCs will be reported etc)\n"); - erts_fprintf(stderr, "-W<i|w> set error logger warnings mapping,\n"); - erts_fprintf(stderr, " see error_logger documentation for details\n"); - erts_fprintf(stderr, "-zdbbl size set the distribution buffer busy limit in kilobytes\n"); - erts_fprintf(stderr, " valid range is [1-%d]\n", INT_MAX/1024); + erts_fprintf(stderr, "-W<i|w> set error logger warnings mapping,\n"); + erts_fprintf(stderr, " see error_logger documentation for details\n"); + erts_fprintf(stderr, "-zdbbl size set the distribution buffer busy limit in kilobytes\n"); + erts_fprintf(stderr, " valid range is [1-%d]\n", INT_MAX/1024); erts_fprintf(stderr, "\n"); erts_fprintf(stderr, "Note that if the emulator is started with erlexec (typically\n"); erts_fprintf(stderr, "from the erl script), these flags should be specified with +.\n"); @@ -545,18 +660,29 @@ early_init(int *argc, char **argv) /* int ncpuavail; int schdlrs; int schdlrs_onln; + int schdlrs_percentage = 100; + int schdlrs_onln_percentage = 100; int max_main_threads; +#ifdef ERTS_DIRTY_SCHEDULERS + int dirty_cpu_scheds; + int dirty_cpu_scheds_online; + int dirty_cpu_scheds_pctg = 100; + int dirty_cpu_scheds_onln_pctg = 100; + int dirty_io_scheds; +#endif int max_reader_groups; int reader_groups; char envbuf[21]; /* enough for any 64-bit integer */ size_t envbufsz; + erts_save_emu_args(*argc, argv); + erts_sched_compact_load = 1; erts_printf_eterm_func = erts_printf_term; erts_disable_tolerant_timeofday = 0; display_items = 200; erts_backtrace_depth = DEFAULT_BACKTRACE_SIZE; - erts_async_max_threads = 0; + erts_async_max_threads = ERTS_DEFAULT_NO_ASYNC_THREADS; erts_async_thread_suggested_stack_size = ERTS_ASYNC_THREAD_MIN_STACK_SIZE; H_MIN_SIZE = H_DEFAULT_SIZE; BIN_VH_MIN_SIZE = VH_DEFAULT_SIZE; @@ -583,8 +709,6 @@ early_init(int *argc, char **argv) /* erts_compat_rel = this_rel_num(); - erts_use_r9_pids_ports = 0; - erts_sys_pre_init(); erts_atomic_init_nob(&exiting, 0); #ifdef ERTS_SMP @@ -596,7 +720,7 @@ early_init(int *argc, char **argv) /* #endif #ifdef ERTS_SMP erts_smp_atomic32_init_nob(&erts_writing_erl_crash_dump, 0L); - erts_tsd_key_create(&erts_is_crash_dumping_key); + erts_tsd_key_create(&erts_is_crash_dumping_key,"erts_is_crash_dumping_key"); #else erts_writing_erl_crash_dump = 0; #endif @@ -621,13 +745,19 @@ early_init(int *argc, char **argv) /* schdlrs = no_schedulers; schdlrs_onln = no_schedulers_online; +#ifdef ERTS_DIRTY_SCHEDULERS + dirty_cpu_scheds = no_schedulers; + dirty_cpu_scheds_online = no_schedulers_online; + dirty_io_scheds = 10; +#endif + envbufsz = sizeof(envbuf); /* erts_sys_getenv(_raw)() not initialized yet; need erts_sys_getenv__() */ if (erts_sys_getenv__("ERL_THREAD_POOL_SIZE", envbuf, &envbufsz) == 0) erts_async_max_threads = atoi(envbuf); else - erts_async_max_threads = 0; + erts_async_max_threads = ERTS_DEFAULT_NO_ASYNC_THREADS; if (erts_async_max_threads > ERTS_MAX_NO_OF_ASYNC_THREADS) erts_async_max_threads = ERTS_MAX_NO_OF_ASYNC_THREADS; @@ -661,7 +791,7 @@ early_init(int *argc, char **argv) /* case 'A': { /* set number of threads in thread pool */ char *arg = get_arg(argv[i]+2, argv[i+1], &i); - if (((erts_async_max_threads = atoi(arg)) < 0) || + if (((erts_async_max_threads = atoi(arg)) < ERTS_MIN_NO_OF_ASYNC_THREADS) || (erts_async_max_threads > ERTS_MAX_NO_OF_ASYNC_THREADS)) { erts_fprintf(stderr, "bad number of async threads %s\n", @@ -672,63 +802,257 @@ early_init(int *argc, char **argv) /* } break; } - case 'S' : { - int tot, onln; - char *arg = get_arg(argv[i]+2, argv[i+1], &i); - switch (sscanf(arg, "%d:%d", &tot, &onln)) { - case 0: - switch (sscanf(arg, ":%d", &onln)) { + case 'S' : + if (argv[i][2] == 'P') { + int ptot, ponln; + char *arg = get_arg(argv[i]+3, argv[i+1], &i); + switch (sscanf(arg, "%d:%d", &ptot, &ponln)) { + case 0: + switch (sscanf(arg, ":%d", &ponln)) { + case 1: + if (ponln < 0) + goto bad_SP; + ptot = 100; + goto chk_SP; + default: + goto bad_SP; + } case 1: - tot = no_schedulers; - goto chk_S; + if (ptot < 0) + goto bad_SP; + ponln = ptot < 100 ? ptot : 100; + goto chk_SP; + case 2: + if (ptot < 0 || ponln < 0) + goto bad_SP; + chk_SP: + schdlrs_percentage = ptot; + schdlrs_onln_percentage = ponln; + break; default: - goto bad_S; - } - case 1: - onln = tot < schdlrs_onln ? tot : schdlrs_onln; - case 2: - chk_S: - if (tot > 0) - schdlrs = tot; - else - schdlrs = no_schedulers + tot; - if (onln > 0) - schdlrs_onln = onln; - else - schdlrs_onln = no_schedulers_online + onln; - if (schdlrs < 1 || ERTS_MAX_NO_OF_SCHEDULERS < schdlrs) { + bad_SP: + erts_fprintf(stderr, + "bad schedulers percentage specifier %s\n", + arg); + erts_usage(); + break; + } + + VERBOSE(DEBUG_SYSTEM, + ("using %d:%d scheduler percentages\n", + schdlrs_percentage, schdlrs_onln_percentage)); + } +#ifdef ERTS_DIRTY_SCHEDULERS + else if (argv[i][2] == 'D') { + char *arg; + char *type = argv[i]+3; + if (strncmp(type, "Pcpu", 4) == 0) { + int ptot, ponln; + arg = get_arg(argv[i]+7, argv[i+1], &i); + switch (sscanf(arg, "%d:%d", &ptot, &ponln)) { + case 0: + switch (sscanf(arg, ":%d", &ponln)) { + case 1: + if (ponln < 0) + goto bad_SDPcpu; + ptot = 100; + goto chk_SDPcpu; + default: + goto bad_SDPcpu; + } + case 1: + if (ptot < 0) + goto bad_SDPcpu; + ponln = ptot < 100 ? ptot : 100; + goto chk_SDPcpu; + case 2: + if (ptot < 0 || ponln < 0) + goto bad_SDPcpu; + chk_SDPcpu: + dirty_cpu_scheds_pctg = ptot; + dirty_cpu_scheds_onln_pctg = ponln; + break; + default: + bad_SDPcpu: + erts_fprintf(stderr, + "bad dirty CPU schedulers percentage specifier %s\n", + arg); + erts_usage(); + break; + } + VERBOSE(DEBUG_SYSTEM, + ("using %d:%d dirty CPU scheduler percentages\n", + dirty_cpu_scheds_pctg, dirty_cpu_scheds_onln_pctg)); + } else if (strncmp(type, "cpu", 3) == 0) { + int tot, onln; + arg = get_arg(argv[i]+6, argv[i+1], &i); + switch (sscanf(arg, "%d:%d", &tot, &onln)) { + case 0: + switch (sscanf(arg, ":%d", &onln)) { + case 1: + tot = no_schedulers; + goto chk_SDcpu; + default: + goto bad_SDcpu; + } + case 1: + onln = tot < dirty_cpu_scheds_online ? + tot : dirty_cpu_scheds_online; + case 2: + chk_SDcpu: + if (tot > 0) + dirty_cpu_scheds = tot; + else + dirty_cpu_scheds = no_schedulers + tot; + if (onln > 0) + dirty_cpu_scheds_online = onln; + else + dirty_cpu_scheds_online = no_schedulers_online + onln; + if (dirty_cpu_scheds < 1 || + ERTS_MAX_NO_OF_DIRTY_CPU_SCHEDULERS < dirty_cpu_scheds) { + erts_fprintf(stderr, + "bad amount of dirty CPU schedulers %d\n", + tot); + erts_usage(); + } + if (dirty_cpu_scheds_online < 1 || + dirty_cpu_scheds < dirty_cpu_scheds_online) { + erts_fprintf(stderr, + "bad amount of dirty CPU schedulers online %d " + "(total amount of dirty CPU schedulers %d)\n", + dirty_cpu_scheds_online, dirty_cpu_scheds); + erts_usage(); + } + break; + default: + bad_SDcpu: + erts_fprintf(stderr, + "bad amount of dirty CPU schedulers %s\n", + arg); + erts_usage(); + break; + } + VERBOSE(DEBUG_SYSTEM, + ("using %d:%d dirty CPU scheduler(s)\n", tot, onln)); + } else if (strncmp(type, "io", 2) == 0) { + arg = get_arg(argv[i]+5, argv[i+1], &i); + dirty_io_scheds = atoi(arg); + if (dirty_io_scheds < 0 || + dirty_io_scheds > ERTS_MAX_NO_OF_DIRTY_IO_SCHEDULERS) { + erts_fprintf(stderr, + "bad number of dirty I/O schedulers %s\n", + arg); + erts_usage(); + } + VERBOSE(DEBUG_SYSTEM, + ("using %d dirty I/O scheduler(s)\n", dirty_io_scheds)); + } else { erts_fprintf(stderr, - "bad amount of schedulers %d\n", - tot); + "bad or missing dirty scheduler specifier: %s\n", + argv[i]); erts_usage(); + break; } - if (schdlrs_onln < 1 || schdlrs < schdlrs_onln) { + } +#endif + else { + int tot, onln; + char *arg = get_arg(argv[i]+2, argv[i+1], &i); + switch (sscanf(arg, "%d:%d", &tot, &onln)) { + case 0: + switch (sscanf(arg, ":%d", &onln)) { + case 1: + tot = no_schedulers; + goto chk_S; + default: + goto bad_S; + } + case 1: + onln = tot < schdlrs_onln ? tot : schdlrs_onln; + case 2: + chk_S: + if (tot > 0) + schdlrs = tot; + else + schdlrs = no_schedulers + tot; + if (onln > 0) + schdlrs_onln = onln; + else + schdlrs_onln = no_schedulers_online + onln; + if (schdlrs < 1 || ERTS_MAX_NO_OF_SCHEDULERS < schdlrs) { + erts_fprintf(stderr, + "bad amount of schedulers %d\n", + tot); + erts_usage(); + } + if (schdlrs_onln < 1 || schdlrs < schdlrs_onln) { + erts_fprintf(stderr, + "bad amount of schedulers online %d " + "(total amount of schedulers %d)\n", + schdlrs_onln, schdlrs); + erts_usage(); + } + break; + default: + bad_S: erts_fprintf(stderr, - "bad amount of schedulers online %d " - "(total amount of schedulers %d)\n", - schdlrs_onln, schdlrs); + "bad amount of schedulers %s\n", + arg); erts_usage(); + break; } - break; - default: - bad_S: - erts_fprintf(stderr, - "bad amount of schedulers %s\n", - arg); - erts_usage(); - break; - } - VERBOSE(DEBUG_SYSTEM, - ("using %d:%d scheduler(s)\n", tot, onln)); - break; - } + VERBOSE(DEBUG_SYSTEM, + ("using %d:%d scheduler(s)\n", tot, onln)); + } + break; default: break; } } i++; } + +#ifdef ERTS_SMP + /* apply any scheduler percentages */ + if (schdlrs_percentage != 100 || schdlrs_onln_percentage != 100) { + schdlrs = schdlrs * schdlrs_percentage / 100; + schdlrs_onln = schdlrs_onln * schdlrs_onln_percentage / 100; + if (schdlrs < 1) + schdlrs = 1; + if (ERTS_MAX_NO_OF_SCHEDULERS < schdlrs) { + erts_fprintf(stderr, + "bad schedulers percentage %d " + "(total amount of schedulers %d)\n", + schdlrs_percentage, schdlrs); + erts_usage(); + } + if (schdlrs_onln < 1) + schdlrs_onln = 1; + if (schdlrs < schdlrs_onln) { + erts_fprintf(stderr, + "bad schedulers online percentage %d " + "(total amount of schedulers %d, online %d)\n", + schdlrs_onln_percentage, schdlrs, schdlrs_onln); + erts_usage(); + } + } +#else + /* Silence gcc warnings */ + (void)schdlrs_percentage; + (void)schdlrs_onln_percentage; +#endif +#ifdef ERTS_DIRTY_SCHEDULERS + /* apply any dirty scheduler precentages */ + if (dirty_cpu_scheds_pctg != 100 || dirty_cpu_scheds_onln_pctg != 100) { + dirty_cpu_scheds = dirty_cpu_scheds * dirty_cpu_scheds_pctg / 100; + dirty_cpu_scheds_online = dirty_cpu_scheds_online * dirty_cpu_scheds_onln_pctg / 100; + } + if (dirty_cpu_scheds > schdlrs) + dirty_cpu_scheds = schdlrs; + if (dirty_cpu_scheds_online > schdlrs_onln) + dirty_cpu_scheds_online = schdlrs_onln; +#endif } #ifndef USE_THREADS @@ -741,6 +1065,11 @@ early_init(int *argc, char **argv) /* erts_no_schedulers = (Uint) no_schedulers; #endif +#ifdef ERTS_DIRTY_SCHEDULERS + erts_no_dirty_cpu_schedulers = no_dirty_cpu_schedulers = dirty_cpu_scheds; + no_dirty_cpu_schedulers_online = dirty_cpu_scheds_online; + erts_no_dirty_io_schedulers = no_dirty_io_schedulers = dirty_io_scheds; +#endif erts_early_init_scheduling(no_schedulers); alloc_opts.ncpu = ncpu; @@ -758,10 +1087,18 @@ early_init(int *argc, char **argv) /* * * * Unmanaged threads that need to register: * ** Async threads (see erl_async.c) + * ** Dirty scheduler threads */ erts_thr_progress_init(no_schedulers, no_schedulers+2, - erts_async_max_threads); +#ifndef ERTS_DIRTY_SCHEDULERS + erts_async_max_threads +#else + erts_async_max_threads + + erts_no_dirty_cpu_schedulers + + erts_no_dirty_io_schedulers +#endif + ); #endif erts_thr_q_init(); erts_init_utils(); @@ -839,11 +1176,16 @@ erl_start(int argc, char **argv) { int i = 1; char* arg=NULL; - char* Parg = NULL; int have_break_handler = 1; char envbuf[21]; /* enough for any 64-bit integer */ size_t envbufsz; int ncpu = early_init(&argc, argv); + int proc_tab_sz = ERTS_DEFAULT_MAX_PROCESSES; + int port_tab_sz = ERTS_DEFAULT_MAX_PORTS; + int port_tab_sz_ignore_files = 0; + int legacy_proc_tab = 0; + int legacy_port_tab = 0; + envbufsz = sizeof(envbuf); if (erts_sys_getenv_raw(ERL_MAX_ETS_TABLES_ENV, envbuf, &envbufsz) == 0) @@ -858,6 +1200,12 @@ erl_start(int argc, char **argv) (erts_aint32_t) max_gen_gcs); } + envbufsz = sizeof(envbuf); + if (erts_sys_getenv_raw("ERL_MAX_PORTS", envbuf, &envbufsz) == 0) { + port_tab_sz = atoi(envbuf); + port_tab_sz_ignore_files = 1; + } + #if (defined(__APPLE__) && defined(__MACH__)) || defined(__DARWIN__) /* * The default stack size on MacOS X is too small for pcre. @@ -902,20 +1250,83 @@ erl_start(int argc, char **argv) VERBOSE(DEBUG_SYSTEM, ("using display items %d\n",display_items)); break; + case 'p': + if (!strncmp(argv[i],"-pc",3)) { + int printable_chars = ERL_PRINTABLE_CHARACTERS_LATIN1; + arg = get_arg(argv[i]+3, argv[i+1], &i); + if (!strcmp(arg,"unicode")) { + printable_chars = ERL_PRINTABLE_CHARACTERS_UNICODE; + } else if (strcmp(arg,"latin1")) { + erts_fprintf(stderr, "bad range of printable " + "characters: %s\n", arg); + erts_usage(); + } + erts_set_printable_characters(printable_chars); + break; + } else { + erts_fprintf(stderr, "%s unknown flag %s\n", argv[0], argv[i]); + erts_usage(); + } case 'f': if (!strncmp(argv[i],"-fn",3)) { + int warning_type = ERL_FILENAME_WARNING_WARNING; arg = get_arg(argv[i]+3, argv[i+1], &i); switch (*arg) { case 'u': - erts_set_user_requested_filename_encoding(ERL_FILENAME_UTF8); + switch (*(arg+1)) { + case 'w': + case 0: + break; + case 'i': + warning_type = ERL_FILENAME_WARNING_IGNORE; + break; + case 'e': + warning_type = ERL_FILENAME_WARNING_ERROR; + break; + default: + erts_fprintf(stderr, "bad type of warnings for " + "wrongly coded filename: %s\n", arg+1); + erts_usage(); + } + erts_set_user_requested_filename_encoding + ( + ERL_FILENAME_UTF8, + warning_type + ); break; case 'l': - erts_set_user_requested_filename_encoding(ERL_FILENAME_LATIN1); + erts_set_user_requested_filename_encoding + ( + ERL_FILENAME_LATIN1, + warning_type + ); break; case 'a': - erts_set_user_requested_filename_encoding(ERL_FILENAME_UNKNOWN); + switch (*(arg+1)) { + case 'w': + case 0: + break; + case 'i': + warning_type = ERL_FILENAME_WARNING_IGNORE; + break; + case 'e': + warning_type = ERL_FILENAME_WARNING_ERROR; + break; + default: + erts_fprintf(stderr, "bad type of warnings for " + "wrongly coded filename: %s\n", arg+1); + erts_usage(); + } + erts_set_user_requested_filename_encoding + ( + ERL_FILENAME_UNKNOWN, + warning_type + ); + break; default: - erts_fprintf(stderr, "bad filename encoding %s, can be (l,u or a)\n", arg); + erts_fprintf(stderr, "bad filename encoding %s, can be " + "(l,u or a, optionally followed by w, " + "i or e)\n", arg); erts_usage(); } break; @@ -1094,16 +1505,76 @@ erl_start(int argc, char **argv) arg); break; - case 'P': - /* set maximum number of processes */ - Parg = get_arg(argv[i]+2, argv[i+1], &i); - erts_max_processes = atoi(Parg); - /* Check of result is delayed until later. This is because +R - may be given after +P. */ + case 'n': + arg = get_arg(argv[i]+2, argv[i+1], &i); + switch (arg[0]) { + case 's': /* synchronous */ + erts_port_synchronous_ops = 1; + erts_port_schedule_all_ops = 0; + break; + case 'a': /* asynchronous */ + erts_port_synchronous_ops = 0; + erts_port_schedule_all_ops = 1; + break; + case 'd': /* Default - schedule on conflict (asynchronous) */ + erts_port_synchronous_ops = 0; + erts_port_schedule_all_ops = 0; + break; + default: + bad_n_option: + erts_fprintf(stderr, "bad -n option %s\n", arg); + erts_usage(); + } + if (arg[1] != '\0') + goto bad_n_option; + break; + + case 'P': /* set maximum number of processes */ + arg = get_arg(argv[i]+2, argv[i+1], &i); + if (strcmp(arg, "legacy") == 0) + legacy_proc_tab = 1; + else { + errno = 0; + proc_tab_sz = strtol(arg, NULL, 10); + if (errno != 0 + || proc_tab_sz < ERTS_MIN_PROCESSES + || ERTS_MAX_PROCESSES < proc_tab_sz) { + erts_fprintf(stderr, "bad number of processes %s\n", arg); + erts_usage(); + } + } + break; + + case 'Q': /* set maximum number of ports */ + arg = get_arg(argv[i]+2, argv[i+1], &i); + if (strcmp(arg, "legacy") == 0) + legacy_port_tab = 1; + else { + errno = 0; + port_tab_sz = strtol(arg, NULL, 10); + if (errno != 0 + || port_tab_sz < ERTS_MIN_PROCESSES + || ERTS_MAX_PROCESSES < port_tab_sz) { + erts_fprintf(stderr, "bad number of ports %s\n", arg); + erts_usage(); + } + port_tab_sz_ignore_files = 1; + } break; case 'S' : /* Was handled in early_init() just read past it */ - (void) get_arg(argv[i]+2, argv[i+1], &i); + if (argv[i][2] == 'D') { + char* type = argv[i]+3; + if (strcmp(type, "Pcpu") == 0) + (void) get_arg(argv[i]+7, argv[i+1], &i); + if (strcmp(type, "cpu") == 0) + (void) get_arg(argv[i]+6, argv[i+1], &i); + else if (strcmp(type, "io") == 0) + (void) get_arg(argv[i]+5, argv[i+1], &i); + } else if (argv[i][2] == 'P') + (void) get_arg(argv[i]+3, argv[i+1], &i); + else + (void) get_arg(argv[i]+2, argv[i+1], &i); break; case 's' : { @@ -1121,7 +1592,7 @@ erl_start(int argc, char **argv) case ERTS_INIT_SCHED_BIND_TYPE_ERROR_NO_CPU_TOPOLOGY: estr = "no cpu topology available"; break; - case ERTS_INIT_SCHED_BIND_TYPE_ERROR_NO_BAD_TYPE: + case ERTS_INIT_SCHED_BIND_TYPE_ERROR_BAD_TYPE: estr = "invalid type"; break; default: @@ -1147,8 +1618,10 @@ erl_start(int argc, char **argv) } else if (has_prefix("cl", sub_param)) { arg = get_arg(sub_param+2, argv[i+1], &i); - if (sys_strcmp("true", arg) == 0) + if (sys_strcmp("true", arg) == 0) { erts_sched_compact_load = 1; + erts_sched_balance_util = 0; + } else if (sys_strcmp("false", arg) == 0) erts_sched_compact_load = 0; else { @@ -1201,9 +1674,62 @@ erl_start(int argc, char **argv) erts_usage(); } } + else if (has_prefix("pp", sub_param)) { + arg = get_arg(sub_param+2, argv[i+1], &i); + if (sys_strcmp(arg, "true") == 0) + erts_port_parallelism = 1; + else if (sys_strcmp(arg, "false") == 0) + erts_port_parallelism = 0; + else { + erts_fprintf(stderr, + "bad port parallelism scheduling hint %s\n", + arg); + erts_usage(); + } + } else if (sys_strcmp("nsp", sub_param) == 0) erts_use_sender_punish = 0; - else if (sys_strcmp("wt", sub_param) == 0) { + else if (has_prefix("tbt", sub_param)) { + arg = get_arg(sub_param+3, argv[i+1], &i); + res = erts_init_scheduler_bind_type_string(arg); + if (res == ERTS_INIT_SCHED_BIND_TYPE_ERROR_BAD_TYPE) { + erts_fprintf(stderr, + "setting scheduler bind type '%s' failed: invalid type\n", + arg); + erts_usage(); + } + } + else if (has_prefix("ub", sub_param)) { + arg = get_arg(sub_param+2, argv[i+1], &i); + if (sys_strcmp("true", arg) == 0) { +#if ERTS_HAVE_SCHED_UTIL_BALANCING_SUPPORT_OPT + erts_sched_balance_util = 1; +#else + erts_fprintf(stderr, + "scheduler utilization balancing not " + "supported on this system\n"); + erts_usage(); +#endif + } + else if (sys_strcmp("false", arg) == 0) + erts_sched_balance_util = 0; + else { + erts_fprintf(stderr, "bad scheduler utilization balancing " + " value '%s'\n", arg); + erts_usage(); + } + } + else if (has_prefix("wct", sub_param)) { + arg = get_arg(sub_param+3, argv[i+1], &i); + if (erts_sched_set_wake_cleanup_threshold(arg) != 0) { + erts_fprintf(stderr, "scheduler wake cleanup threshold: %s\n", + arg); + erts_usage(); + } + VERBOSE(DEBUG_SYSTEM, + ("scheduler wake cleanup threshold: %s\n", arg)); + } + else if (has_prefix("wt", sub_param)) { arg = get_arg(sub_param+2, argv[i+1], &i); if (erts_sched_set_wakeup_other_thresold(arg) != 0) { erts_fprintf(stderr, "scheduler wakeup threshold: %s\n", @@ -1213,7 +1739,7 @@ erl_start(int argc, char **argv) VERBOSE(DEBUG_SYSTEM, ("scheduler wakeup threshold: %s\n", arg)); } - else if (sys_strcmp("ws", sub_param) == 0) { + else if (has_prefix("ws", sub_param)) { arg = get_arg(sub_param+2, argv[i+1], &i); if (erts_sched_set_wakeup_other_type(arg) != 0) { erts_fprintf(stderr, "scheduler wakeup strategy: %s\n", @@ -1240,6 +1766,22 @@ erl_start(int argc, char **argv) ("suggested scheduler thread stack size %d kilo words\n", erts_sched_thread_suggested_stack_size)); } + else if (has_prefix("fwi", sub_param)) { + long val; + arg = get_arg(sub_param+3, argv[i+1], &i); + errno = 0; + val = strtol(arg, NULL, 10); + if (errno != 0 || val < 0) { + erts_fprintf(stderr, + "bad scheduler forced wakeup " + "interval %s\n", + arg); + erts_usage(); + } +#ifdef ERTS_SMP + erts_runq_supervision_interval = val; +#endif + } else { erts_fprintf(stderr, "bad scheduling option %s\n", argv[i]); erts_usage(); @@ -1282,22 +1824,19 @@ erl_start(int argc, char **argv) case 'R': { /* set compatibility release */ + int this_rel; arg = get_arg(argv[i]+2, argv[i+1], &i); erts_compat_rel = atoi(arg); - if (erts_compat_rel < ERTS_MIN_COMPAT_REL - || erts_compat_rel > this_rel_num()) { + this_rel = this_rel_num(); + if (erts_compat_rel < this_rel - 2 || this_rel < erts_compat_rel) { erts_fprintf(stderr, "bad compatibility release number %s\n", arg); erts_usage(); } - ASSERT(ERTS_MIN_COMPAT_REL >= 7); switch (erts_compat_rel) { - case 7: - case 8: - case 9: - erts_use_r9_pids_ports = 1; + /* Currently no compat features... */ default: break; } @@ -1339,8 +1878,6 @@ erl_start(int argc, char **argv) } break; } - case 'n': /* XXX obsolete */ - break; case 'c': if (argv[i][2] == 0) { /* -c: documented option */ erts_disable_tolerant_timeofday = 1; @@ -1395,14 +1932,13 @@ erl_start(int argc, char **argv) i++; } - /* Delayed check of +P flag */ - if (erts_max_processes < ERTS_MIN_PROCESSES - || erts_max_processes > ERTS_MAX_PROCESSES - || (erts_use_r9_pids_ports - && erts_max_processes > ERTS_MAX_R9_PROCESSES)) { - erts_fprintf(stderr, "bad number of processes %s\n", Parg); - erts_usage(); - } +/* Output format on windows for sprintf defaults to three exponents. + * We use two-exponent to mimic normal sprintf behaviour. + */ + +#if defined(__WIN32__) && defined(_TWO_DIGIT_EXPONENT) + _set_output_format(_TWO_DIGIT_EXPONENT); +#endif /* Restart will not reinstall the break handler */ #ifdef __WIN32__ @@ -1424,9 +1960,16 @@ erl_start(int argc, char **argv) boot_argc = argc - i; /* Number of arguments to init */ boot_argv = &argv[i]; - erl_init(ncpu); + erl_init(ncpu, + proc_tab_sz, + legacy_proc_tab, + port_tab_sz, + port_tab_sz_ignore_files, + legacy_port_tab); load_preloaded(); + erts_end_staging_code_ix(); + erts_commit_staging_code_ix(); erts_initialized = 1; @@ -1523,8 +2066,10 @@ erl_exit_vv(int n, int flush_async, char *fmt, va_list args1, va_list args2) system_cleanup(flush_async); save_statistics(); - - an = abs(n); + if (n < 0) + an = -(unsigned int)n; + else + an = n; if (erts_mtrace_enabled) erts_mtrace_exit((Uint32) an); diff --git a/erts/emulator/beam/erl_instrument.c b/erts/emulator/beam/erl_instrument.c index 963c8b3c58..df7c443387 100644 --- a/erts/emulator/beam/erl_instrument.c +++ b/erts/emulator/beam/erl_instrument.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 2003-2011. All Rights Reserved. + * Copyright Ericsson AB 2003-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -271,6 +271,18 @@ stat_upd_realloc(ErtsAlcType_t n, Uint size, Uint old_size) * stat instrumentation callback functions */ +static void stat_pre_lock(void) +{ + erts_mtx_lock(&instr_mutex); +} + +static void stat_pre_unlock(void) +{ + erts_mtx_unlock(&instr_mutex); +} + +static ErtsAllocatorWrapper_t instr_wrapper; + static void * stat_alloc(ErtsAlcType_t n, void *extra, Uint size) { @@ -278,7 +290,9 @@ stat_alloc(ErtsAlcType_t n, void *extra, Uint size) Uint ssize; void *res; - erts_mtx_lock(&instr_mutex); + if (!erts_is_allctr_wrapper_prelocked()) { + erts_mtx_lock(&instr_mutex); + } ssize = size + STAT_BLOCK_HEADER_SIZE; res = (*real_af->alloc)(n, real_af->extra, ssize); @@ -293,7 +307,9 @@ stat_alloc(ErtsAlcType_t n, void *extra, Uint size) res = (void *) ((StatBlock_t *) res)->mem; } - erts_mtx_unlock(&instr_mutex); + if (!erts_is_allctr_wrapper_prelocked()) { + erts_mtx_unlock(&instr_mutex); + } return res; } @@ -307,7 +323,9 @@ stat_realloc(ErtsAlcType_t n, void *extra, void *ptr, Uint size) void *sptr; void *res; - erts_mtx_lock(&instr_mutex); + if (!erts_is_allctr_wrapper_prelocked()) { + erts_mtx_lock(&instr_mutex); + } if (ptr) { sptr = (void *) (((char *) ptr) - STAT_BLOCK_HEADER_SIZE); @@ -329,7 +347,9 @@ stat_realloc(ErtsAlcType_t n, void *extra, void *ptr, Uint size) res = (void *) ((StatBlock_t *) res)->mem; } - erts_mtx_unlock(&instr_mutex); + if (!erts_is_allctr_wrapper_prelocked()) { + erts_mtx_unlock(&instr_mutex); + } return res; } @@ -340,7 +360,9 @@ stat_free(ErtsAlcType_t n, void *extra, void *ptr) ErtsAllocatorFunctions_t *real_af = (ErtsAllocatorFunctions_t *) extra; void *sptr; - erts_mtx_lock(&instr_mutex); + if (!erts_is_allctr_wrapper_prelocked()) { + erts_mtx_lock(&instr_mutex); + } if (ptr) { sptr = (void *) (((char *) ptr) - STAT_BLOCK_HEADER_SIZE); @@ -352,7 +374,9 @@ stat_free(ErtsAlcType_t n, void *extra, void *ptr) (*real_af->free)(n, real_af->extra, sptr); - erts_mtx_unlock(&instr_mutex); + if (!erts_is_allctr_wrapper_prelocked()) { + erts_mtx_unlock(&instr_mutex); + } } @@ -360,6 +384,18 @@ stat_free(ErtsAlcType_t n, void *extra, void *ptr) * map stat instrumentation callback functions */ +static void map_stat_pre_lock(void) +{ + erts_mtx_lock(&instr_x_mutex); + erts_mtx_lock(&instr_mutex); +} + +static void map_stat_pre_unlock(void) +{ + erts_mtx_unlock(&instr_mutex); + erts_mtx_unlock(&instr_x_mutex); +} + static void * map_stat_alloc(ErtsAlcType_t n, void *extra, Uint size) { @@ -367,7 +403,9 @@ map_stat_alloc(ErtsAlcType_t n, void *extra, Uint size) Uint msize; void *res; - erts_mtx_lock(&instr_mutex); + if (!erts_is_allctr_wrapper_prelocked()) { + erts_mtx_lock(&instr_mutex); + } msize = size + MAP_STAT_BLOCK_HEADER_SIZE; res = (*real_af->alloc)(n, real_af->extra, msize); @@ -388,7 +426,9 @@ map_stat_alloc(ErtsAlcType_t n, void *extra, Uint size) res = (void *) mb->mem; } - erts_mtx_unlock(&instr_mutex); + if (!erts_is_allctr_wrapper_prelocked()) { + erts_mtx_unlock(&instr_mutex); + } return res; } @@ -402,8 +442,10 @@ map_stat_realloc(ErtsAlcType_t n, void *extra, void *ptr, Uint size) void *mptr; void *res; - erts_mtx_lock(&instr_x_mutex); - erts_mtx_lock(&instr_mutex); + if (!erts_is_allctr_wrapper_prelocked()) { + erts_mtx_lock(&instr_x_mutex); + erts_mtx_lock(&instr_mutex); + } if (ptr) { mptr = (void *) (((char *) ptr) - MAP_STAT_BLOCK_HEADER_SIZE); @@ -449,9 +491,10 @@ map_stat_realloc(ErtsAlcType_t n, void *extra, void *ptr, Uint size) res = (void *) mb->mem; } - - erts_mtx_unlock(&instr_mutex); - erts_mtx_unlock(&instr_x_mutex); + if (!erts_is_allctr_wrapper_prelocked()) { + erts_mtx_unlock(&instr_mutex); + erts_mtx_unlock(&instr_x_mutex); + } return res; } @@ -462,8 +505,10 @@ map_stat_free(ErtsAlcType_t n, void *extra, void *ptr) ErtsAllocatorFunctions_t *real_af = (ErtsAllocatorFunctions_t *) extra; void *mptr; - erts_mtx_lock(&instr_x_mutex); - erts_mtx_lock(&instr_mutex); + if (!erts_is_allctr_wrapper_prelocked()) { + erts_mtx_lock(&instr_x_mutex); + erts_mtx_lock(&instr_mutex); + } if (ptr) { MapStatBlock_t *mb; @@ -486,8 +531,10 @@ map_stat_free(ErtsAlcType_t n, void *extra, void *ptr) (*real_af->free)(n, real_af->extra, mptr); - erts_mtx_unlock(&instr_mutex); - erts_mtx_unlock(&instr_x_mutex); + if (!erts_is_allctr_wrapper_prelocked()) { + erts_mtx_unlock(&instr_mutex); + erts_mtx_unlock(&instr_x_mutex); + } } @@ -496,8 +543,10 @@ static void dump_memory_map_to_stream(FILE *fp) ErtsAlcType_t n; MapStatBlock_t *bp; int lock = !ERTS_IS_CRASH_DUMPING; - if (lock) + if (lock) { + ASSERT(!erts_is_allctr_wrapper_prelocked()); erts_mtx_lock(&instr_mutex); + } /* Write header */ @@ -775,8 +824,8 @@ Eterm erts_instr_get_memory_map(Process *proc) ASSERT(hp + 3 == end_hp); if (mem_anchor) { - for (bp = mem_anchor; bp->next; bp = bp->next); - + for (bp = mem_anchor; bp->next; bp = bp->next) + ; ASSERT(org_mem_anchor); org_mem_anchor->prev = bp; bp->next = org_mem_anchor; @@ -1155,6 +1204,7 @@ erts_instr_get_type_info(Process *proc) Uint erts_instr_init(int stat, int map_stat) { + Uint extra_sz; int i; am_tot = NULL; @@ -1186,8 +1236,6 @@ erts_instr_init(int stat, int map_stat) sys_memzero((void *) stats->n, sizeof(Stat_t)*(ERTS_ALC_N_MAX+1)); for (i = ERTS_ALC_A_MIN; i <= ERTS_ALC_A_MAX; i++) { - if (ERTS_IS_SBMBC_ALLOCATOR_NO__(i)) - continue; if (erts_allctrs_info[i].enabled) stats->ap[i] = &stats->a[i]; else @@ -1201,27 +1249,28 @@ erts_instr_init(int stat, int map_stat) erts_instr_memory_map = 1; erts_instr_stat = 1; for (i = ERTS_ALC_A_MIN; i <= ERTS_ALC_A_MAX; i++) { - if (ERTS_IS_SBMBC_ALLOCATOR_NO__(i)) - continue; erts_allctrs[i].alloc = map_stat_alloc; erts_allctrs[i].realloc = map_stat_realloc; erts_allctrs[i].free = map_stat_free; erts_allctrs[i].extra = (void *) &real_allctrs[i]; } - return MAP_STAT_BLOCK_HEADER_SIZE; + instr_wrapper.lock = map_stat_pre_lock; + instr_wrapper.unlock = map_stat_pre_unlock; + extra_sz = MAP_STAT_BLOCK_HEADER_SIZE; } else { erts_instr_stat = 1; for (i = ERTS_ALC_A_MIN; i <= ERTS_ALC_A_MAX; i++) { - if (ERTS_IS_SBMBC_ALLOCATOR_NO__(i)) - continue; erts_allctrs[i].alloc = stat_alloc; erts_allctrs[i].realloc = stat_realloc; erts_allctrs[i].free = stat_free; erts_allctrs[i].extra = (void *) &real_allctrs[i]; } - return STAT_BLOCK_HEADER_SIZE; + instr_wrapper.lock = stat_pre_lock; + instr_wrapper.unlock = stat_pre_unlock; + extra_sz = STAT_BLOCK_HEADER_SIZE; } - + erts_allctr_wrapper_prelock_init(&instr_wrapper); + return extra_sz; } diff --git a/erts/emulator/beam/erl_lock_check.c b/erts/emulator/beam/erl_lock_check.c index 1f388c1796..c665aa51a2 100644 --- a/erts/emulator/beam/erl_lock_check.c +++ b/erts/emulator/beam/erl_lock_check.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 2005-2012. All Rights Reserved. + * Copyright Ericsson AB 2005-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -82,8 +82,8 @@ static erts_lc_lock_order_t erts_lock_order[] = { #ifdef ERTS_SMP { "bif_timers", NULL }, { "reg_tab", NULL }, - { "migration_info_update", NULL }, { "proc_main", "pid" }, + { "old_code", "address" }, #ifdef HIPE { "hipe_mfait_lock", NULL }, #endif @@ -93,8 +93,8 @@ static erts_lc_lock_order_t erts_lock_order[] = { { "proc_msgq", "pid" }, { "dist_entry", "address" }, { "dist_entry_links", "address" }, + { "code_write_permission", NULL }, { "proc_status", "pid" }, - { "proc_tab", NULL }, { "ports_snapshot", NULL }, { "meta_name_tab", "address" }, { "meta_main_tab_slot", "address" }, @@ -114,9 +114,6 @@ static erts_lc_lock_order_t erts_lock_order[] = { #if defined(ENABLE_CHILD_WAITER_THREAD) || defined(ERTS_SMP) { "child_status", NULL }, #endif -#ifdef __WIN32__ - { "sys_driver_data_lock", NULL }, -#endif { "drv_ev_state_grow", NULL, }, { "drv_ev_state", "address" }, { "safe_hash", "address" }, @@ -124,7 +121,12 @@ static erts_lc_lock_order_t erts_lock_order[] = { { "removed_fd_pre_alloc_lock", "address" }, { "state_prealloc", NULL }, { "schdlr_sspnd", NULL }, + { "migration_info_update", NULL }, { "run_queue", "address" }, +#ifdef ERTS_DIRTY_SCHEDULERS + { "dirty_run_queue_sleep_list", "address" }, +#endif + { "process_table", NULL }, { "cpu_info", NULL }, { "pollset", "address" }, #ifdef __WIN32__ @@ -133,6 +135,7 @@ static erts_lc_lock_order_t erts_lock_order[] = { #endif /* __WIN32__ */ { "alcu_init_atoms", NULL }, { "mseg_init_atoms", NULL }, + { "mmap_init_atoms", NULL }, { "drv_tsd", NULL }, { "async_enq_mtx", NULL }, #ifdef ERTS_SMP @@ -144,23 +147,20 @@ static erts_lc_lock_order_t erts_lock_order[] = { { "ptimer_pre_alloc_lock", "address", }, { "btm_pre_alloc_lock", NULL, }, { "dist_entry_out_queue", "address" }, + { "port_sched_lock", "port_id" }, + { "port_table", NULL }, #endif { "mtrace_op", NULL }, { "instr_x", NULL }, { "instr", NULL }, { "alcu_allocator", "index" }, - { "sbmbc_alloc", "index" }, { "mseg", NULL }, #if HALFWORD_HEAP { "pmmap", NULL }, #endif #ifdef ERTS_SMP { "port_task_pre_alloc_lock", "address" }, - { "port_taskq_pre_alloc_lock", "address" }, { "proclist_pre_alloc_lock", "address" }, - { "port_tasks_lock", NULL }, - { "get_free_port", NULL }, - { "port_state", "address" }, { "xports_list_pre_alloc_lock", "address" }, { "inet_buffer_stack_lock", NULL }, { "gc_info", NULL }, @@ -184,7 +184,14 @@ static erts_lc_lock_order_t erts_lock_order[] = { { "efile_drv dtrace mutex", NULL }, #endif { "mtrace_buf", NULL }, - { "erts_alloc_hard_debug", NULL } +#ifdef __WIN32__ +#ifdef ERTS_SMP + { "sys_gethrtime", NULL }, +#endif +#endif + { "erts_alloc_hard_debug", NULL }, + { "hard_dbg_mseg", NULL }, + { "erts_mmap", NULL } }; #define ERTS_LOCK_ORDER_SIZE \ @@ -220,8 +227,7 @@ rw_op_str(Uint16 flags) case ERTS_LC_FLG_LO_READ: return " (r)"; case ERTS_LC_FLG_LO_WRITE: - erts_fprintf(stderr, "\nInternal error\n"); - lc_abort(); + ERTS_INTERNAL_ERROR("Only write flag present"); default: break; } @@ -234,6 +240,8 @@ struct erts_lc_locked_lock_t_ { erts_lc_locked_lock_t *prev; UWord extra; Sint16 id; + char *file; + unsigned int line; Uint16 flags; }; @@ -245,6 +253,7 @@ typedef struct { typedef struct erts_lc_locked_locks_t_ erts_lc_locked_locks_t; struct erts_lc_locked_locks_t_ { char *thread_name; + int emu_thread; erts_tid_t tid; erts_lc_locked_locks_t *next; erts_lc_locked_locks_t *prev; @@ -260,9 +269,9 @@ union erts_lc_free_block_t_ { static ethr_tsd_key locks_key; -static erts_lc_locked_locks_t *erts_locked_locks; +static erts_lc_locked_locks_t *erts_locked_locks = NULL; -static erts_lc_free_block_t *free_blocks; +static erts_lc_free_block_t *free_blocks = NULL; #ifdef ERTS_LC_STATIC_ALLOC #define ERTS_LC_FB_CHUNK_SIZE 10000 @@ -301,8 +310,7 @@ static ERTS_INLINE void lc_free(void *p) static void *lc_core_alloc(void) { lc_unlock(); - erts_fprintf(stderr, "Lock checker out of memory!\n"); - lc_abort(); + ERTS_INTERNAL_ERROR("Lock checker out of memory!\n"); } #else @@ -315,8 +323,7 @@ static void *lc_core_alloc(void) fbs = (erts_lc_free_block_t *) malloc(sizeof(erts_lc_free_block_t) * ERTS_LC_FB_CHUNK_SIZE); if (!fbs) { - erts_fprintf(stderr, "Lock checker failed to allocate memory!\n"); - lc_abort(); + ERTS_INTERNAL_ERROR("Lock checker failed to allocate memory!"); } for (i = 1; i < ERTS_LC_FB_CHUNK_SIZE - 1; i++) { #ifdef DEBUG @@ -356,12 +363,13 @@ create_locked_locks(char *thread_name) { erts_lc_locked_locks_t *l_lcks = malloc(sizeof(erts_lc_locked_locks_t)); if (!l_lcks) - lc_abort(); + ERTS_INTERNAL_ERROR("Lock checker failed to allocate memory!"); l_lcks->thread_name = strdup(thread_name ? thread_name : "unknown"); if (!l_lcks->thread_name) - lc_abort(); + ERTS_INTERNAL_ERROR("Lock checker failed to allocate memory!"); + l_lcks->emu_thread = 0; l_lcks->tid = erts_thr_self(); l_lcks->required.first = NULL; l_lcks->required.last = NULL; @@ -421,47 +429,51 @@ make_my_locked_locks(void) } static ERTS_INLINE erts_lc_locked_lock_t * -new_locked_lock(erts_lc_lock_t *lck, Uint16 op_flags) +new_locked_lock(erts_lc_lock_t *lck, Uint16 op_flags, + char *file, unsigned int line) { erts_lc_locked_lock_t *l_lck = (erts_lc_locked_lock_t *) lc_alloc(); l_lck->next = NULL; l_lck->prev = NULL; l_lck->id = lck->id; l_lck->extra = lck->extra; + l_lck->file = file; + l_lck->line = line; l_lck->flags = lck->flags | op_flags; return l_lck; } static void -print_lock2(char *prefix, Sint16 id, Wterm extra, Uint16 flags, char *suffix) +raw_print_lock(char *prefix, Sint16 id, Wterm extra, Uint16 flags, + char* file, unsigned int line, char *suffix) { char *lname = (0 <= id && id < ERTS_LOCK_ORDER_SIZE ? erts_lock_order[id].name : "unknown"); + erts_fprintf(stderr,"%s'%s:",prefix,lname); + if (is_not_immed(extra)) - erts_fprintf(stderr, - "%s'%s:%p%s'%s%s", - prefix, - lname, - _unchecked_boxed_val(extra), - lock_type(flags), - rw_op_str(flags), - suffix); + erts_fprintf(stderr,"%p",_unchecked_boxed_val(extra)); else - erts_fprintf(stderr, - "%s'%s:%T%s'%s%s", - prefix, - lname, - extra, - lock_type(flags), - rw_op_str(flags), - suffix); + erts_fprintf(stderr,"%T",extra); + erts_fprintf(stderr,"%s",lock_type(flags)); + + if (file) + erts_fprintf(stderr,"(%s:%d)",file,line); + + erts_fprintf(stderr,"'%s%s",rw_op_str(flags),suffix); +} + +static void +print_lock2(char *prefix, Sint16 id, Wterm extra, Uint16 flags, char *suffix) +{ + raw_print_lock(prefix, id, extra, flags, NULL, 0, suffix); } static void print_lock(char *prefix, erts_lc_lock_t *lck, char *suffix) { - print_lock2(prefix, lck->id, lck->extra, lck->flags, suffix); + raw_print_lock(prefix, lck->id, lck->extra, lck->flags, NULL, 0, suffix); } static void @@ -477,7 +489,8 @@ print_curr_locks(erts_lc_locked_locks_t *l_lcks) "Currently these locks are locked by the %s thread:\n", l_lcks->thread_name); for (l_lck = l_lcks->locked.first; l_lck; l_lck = l_lck->next) - print_lock2(" ", l_lck->id, l_lck->extra, l_lck->flags, "\n"); + raw_print_lock(" ", l_lck->id, l_lck->extra, l_lck->flags, + l_lck->file, l_lck->line, "\n"); } } @@ -669,14 +682,22 @@ erts_lc_set_thread_name(char *thread_name) { erts_lc_locked_locks_t *l_lcks = get_my_locked_locks(); if (!l_lcks) - (void) create_locked_locks(thread_name); + l_lcks = create_locked_locks(thread_name); else { ASSERT(l_lcks->thread_name); free((void *) l_lcks->thread_name); l_lcks->thread_name = strdup(thread_name ? thread_name : "unknown"); if (!l_lcks->thread_name) - lc_abort(); + ERTS_INTERNAL_ERROR("strdup failed"); } + l_lcks->emu_thread = 1; +} + +int +erts_lc_is_emu_thr(void) +{ + erts_lc_locked_locks_t *l_lcks = get_my_locked_locks(); + return l_lcks->emu_thread; } int @@ -985,7 +1006,8 @@ erts_lc_trylock_force_busy_flg(erts_lc_lock_t *lck, Uint16 op_flags) #endif } -void erts_lc_trylock_flg(int locked, erts_lc_lock_t *lck, Uint16 op_flags) +void erts_lc_trylock_flg_x(int locked, erts_lc_lock_t *lck, Uint16 op_flags, + char *file, unsigned int line) { erts_lc_locked_locks_t *l_lcks; erts_lc_locked_lock_t *l_lck; @@ -997,7 +1019,7 @@ void erts_lc_trylock_flg(int locked, erts_lc_lock_t *lck, Uint16 op_flags) return; l_lcks = make_my_locked_locks(); - l_lck = locked ? new_locked_lock(lck, op_flags) : NULL; + l_lck = locked ? new_locked_lock(lck, op_flags, file, line) : NULL; if (!l_lcks->locked.last) { ASSERT(!l_lcks->locked.first); @@ -1038,13 +1060,14 @@ void erts_lc_trylock_flg(int locked, erts_lc_lock_t *lck, Uint16 op_flags) } -void erts_lc_require_lock_flg(erts_lc_lock_t *lck, Uint16 op_flags) +void erts_lc_require_lock_flg(erts_lc_lock_t *lck, Uint16 op_flags, + char *file, unsigned int line) { erts_lc_locked_locks_t *l_lcks = make_my_locked_locks(); erts_lc_locked_lock_t *l_lck = l_lcks->locked.first; if (!find_lock(&l_lck, lck)) required_not_locked(l_lcks, lck); - l_lck = new_locked_lock(lck, op_flags); + l_lck = new_locked_lock(lck, op_flags, file, line); if (!l_lcks->required.last) { ASSERT(!l_lcks->required.first); l_lck->next = l_lck->prev = NULL; @@ -1112,7 +1135,8 @@ void erts_lc_unrequire_lock_flg(erts_lc_lock_t *lck, Uint16 op_flags) lc_free((void *) l_lck); } -void erts_lc_lock_flg(erts_lc_lock_t *lck, Uint16 op_flags) +void erts_lc_lock_flg_x(erts_lc_lock_t *lck, Uint16 op_flags, + char *file, unsigned int line) { erts_lc_locked_locks_t *l_lcks; erts_lc_locked_lock_t *l_lck; @@ -1124,7 +1148,7 @@ void erts_lc_lock_flg(erts_lc_lock_t *lck, Uint16 op_flags) return; l_lcks = make_my_locked_locks(); - l_lck = new_locked_lock(lck, op_flags); + l_lck = new_locked_lock(lck, op_flags, file, line); if (!l_lcks->locked.last) { ASSERT(!l_lcks->locked.first); @@ -1215,15 +1239,15 @@ erts_lc_trylock_force_busy(erts_lc_lock_t *lck) } void -erts_lc_trylock(int locked, erts_lc_lock_t *lck) +erts_lc_trylock_x(int locked, erts_lc_lock_t *lck, char *file, unsigned int line) { - erts_lc_trylock_flg(locked, lck, 0); + erts_lc_trylock_flg_x(locked, lck, 0, file, line); } void -erts_lc_lock(erts_lc_lock_t *lck) +erts_lc_lock_x(erts_lc_lock_t *lck, char *file, unsigned int line) { - erts_lc_lock_flg(lck, 0); + erts_lc_lock_flg_x(lck, 0, file, line); } void @@ -1237,9 +1261,9 @@ void erts_lc_might_unlock(erts_lc_lock_t *lck) erts_lc_might_unlock_flg(lck, 0); } -void erts_lc_require_lock(erts_lc_lock_t *lck) +void erts_lc_require_lock(erts_lc_lock_t *lck, char *file, unsigned int line) { - erts_lc_require_lock_flg(lck, 0); + erts_lc_require_lock_flg(lck, 0, file, line); } void erts_lc_unrequire_lock(erts_lc_lock_t *lck) @@ -1303,9 +1327,9 @@ erts_lc_init(void) #endif /* #ifdef ERTS_LC_STATIC_ALLOC */ if (ethr_spinlock_init(&free_blocks_lock) != 0) - lc_abort(); + ERTS_INTERNAL_ERROR("spinlock_init failed"); - erts_tsd_key_create(&locks_key); + erts_tsd_key_create(&locks_key,"erts_lock_check_key"); } void diff --git a/erts/emulator/beam/erl_lock_check.h b/erts/emulator/beam/erl_lock_check.h index df7b3758e1..3f7f417e61 100644 --- a/erts/emulator/beam/erl_lock_check.h +++ b/erts/emulator/beam/erl_lock_check.h @@ -35,6 +35,11 @@ #ifdef ERTS_ENABLE_LOCK_CHECK +#ifndef ERTS_ENABLE_LOCK_POSITION +/* Enable in order for _x variants of mtx functions to be used. */ +#define ERTS_ENABLE_LOCK_POSITION 1 +#endif + typedef struct { int inited; Sint16 id; @@ -79,13 +84,16 @@ void erts_lc_have_locks(int *resv, erts_lc_lock_t *lcks, int len); void erts_lc_have_lock_ids(int *resv, int *ids, int len); void erts_lc_check_no_locked_of_type(Uint16 flags); int erts_lc_trylock_force_busy_flg(erts_lc_lock_t *lck, Uint16 op_flags); -void erts_lc_trylock_flg(int locked, erts_lc_lock_t *lck, Uint16 op_flags); -void erts_lc_lock_flg(erts_lc_lock_t *lck, Uint16 op_flags); +void erts_lc_trylock_flg_x(int locked, erts_lc_lock_t *lck, Uint16 op_flags, + char *file, unsigned int line); +void erts_lc_lock_flg_x(erts_lc_lock_t *lck, Uint16 op_flags, + char *file, unsigned int line); void erts_lc_unlock_flg(erts_lc_lock_t *lck, Uint16 op_flags); void erts_lc_might_unlock_flg(erts_lc_lock_t *lck, Uint16 op_flags); int erts_lc_trylock_force_busy(erts_lc_lock_t *lck); -void erts_lc_trylock(int locked, erts_lc_lock_t *lck); -void erts_lc_lock(erts_lc_lock_t *lck); +void erts_lc_trylock_x(int locked, erts_lc_lock_t *lck, + char* file, unsigned int line); +void erts_lc_lock_x(erts_lc_lock_t *lck, char* file, unsigned int line); void erts_lc_unlock(erts_lc_lock_t *lck); void erts_lc_might_unlock(erts_lc_lock_t *lck); void erts_lc_init_lock(erts_lc_lock_t *lck, char *name, Uint16 flags); @@ -96,12 +104,14 @@ int erts_lc_assert_failed(char *file, int line, char *assertion); void erts_lc_set_thread_name(char *thread_name); void erts_lc_pll(void); -void erts_lc_require_lock_flg(erts_lc_lock_t *lck, Uint16 op_flags); +void erts_lc_require_lock_flg(erts_lc_lock_t *lck, Uint16 op_flags, + char *file, unsigned int line); void erts_lc_unrequire_lock_flg(erts_lc_lock_t *lck, Uint16 op_flags); -void erts_lc_require_lock(erts_lc_lock_t *lck); +void erts_lc_require_lock(erts_lc_lock_t *lck, char *file, unsigned int line); void erts_lc_unrequire_lock(erts_lc_lock_t *lck); +int erts_lc_is_emu_thr(void); #define ERTS_LC_ASSERT(A) \ ((void) (((A) || ERTS_SOMEONE_IS_CRASH_DUMPING) ? 1 : erts_lc_assert_failed(__FILE__, __LINE__, #A))) @@ -115,4 +125,9 @@ void erts_lc_unrequire_lock(erts_lc_lock_t *lck); #define ERTS_LC_ASSERT(A) ((void) 1) #endif /* #ifdef ERTS_ENABLE_LOCK_CHECK */ +#define erts_lc_lock(lck) erts_lc_lock_x(lck,__FILE__,__LINE__) +#define erts_lc_trylock(res,lck) erts_lc_trylock_x(res,lck,__FILE__,__LINE__) +#define erts_lc_lock_flg(lck) erts_lc_lock_flg_x(lck,__FILE__,__LINE__) +#define erts_lc_trylock_flg(res,lck) erts_lc_trylock_flg_x(res,lck,__FILE__,__LINE__) + #endif /* #ifndef ERTS_LOCK_CHECK_H__ */ diff --git a/erts/emulator/beam/erl_lock_count.c b/erts/emulator/beam/erl_lock_count.c index 5f75b0ac0b..cf6996ea06 100644 --- a/erts/emulator/beam/erl_lock_count.c +++ b/erts/emulator/beam/erl_lock_count.c @@ -61,6 +61,25 @@ static ERTS_INLINE void lcnt_unlock(void) { ethr_mutex_unlock(&lcnt_data_lock); } +const int log2_tab64[64] = { + 63, 0, 58, 1, 59, 47, 53, 2, + 60, 39, 48, 27, 54, 33, 42, 3, + 61, 51, 37, 40, 49, 18, 28, 20, + 55, 30, 34, 11, 43, 14, 22, 4, + 62, 57, 46, 52, 38, 26, 32, 41, + 50, 36, 17, 19, 29, 10, 13, 21, + 56, 45, 25, 31, 35, 16, 9, 12, + 44, 24, 15, 8, 23, 7, 6, 5}; + +static ERTS_INLINE int lcnt_log2(Uint64 v) { + v |= v >> 1; + v |= v >> 2; + v |= v >> 4; + v |= v >> 8; + v |= v >> 16; + v |= v >> 32; + return log2_tab64[((Uint64)((v - (v >> 1))*0x07EDD5E59A4E28C2)) >> 58]; +} static char* lcnt_lock_type(Uint16 flag) { switch(flag & ERTS_LCNT_LT_ALL) { @@ -81,19 +100,20 @@ static void lcnt_clear_stats(erts_lcnt_lock_stats_t *stats) { stats->timer_n = 0; stats->file = (char *)str_undefined; stats->line = 0; + sys_memzero(stats->hist.ns, sizeof(stats->hist.ns)); } static void lcnt_time(erts_lcnt_time_t *time) { -#ifdef HAVE_GETHRTIME +#if 0 || defined(HAVE_GETHRTIME) SysHrTime hr_time; hr_time = sys_gethrtime(); time->s = (unsigned long)(hr_time / 1000000000LL); time->ns = (unsigned long)(hr_time - 1000000000LL*time->s); -#else - SysTimeval tv; - sys_gettimeofday(&tv); - time->s = tv.tv_sec; - time->ns = tv.tv_usec*1000LL; +#else + SysTimeval tv; + sys_gettimeofday(&tv); + time->s = tv.tv_sec; + time->ns = tv.tv_usec*1000LL; #endif } @@ -111,28 +131,29 @@ static void lcnt_time_diff(erts_lcnt_time_t *d, erts_lcnt_time_t *t1, erts_lcnt_ dns += 1000000000LL; } + ASSERT(ds >= 0); + d->s = ds; d->ns = dns; } -/* difference d must be positive */ +/* difference d must be non-negative */ static void lcnt_time_add(erts_lcnt_time_t *t, erts_lcnt_time_t *d) { - unsigned long ngns = 0; - t->s += d->s; t->ns += d->ns; - ngns = t->ns / 1000000000LL; + t->s += t->ns / 1000000000LL; t->ns = t->ns % 1000000000LL; - - t->s += ngns; } static erts_lcnt_thread_data_t *lcnt_thread_data_alloc(void) { erts_lcnt_thread_data_t *eltd; eltd = (erts_lcnt_thread_data_t*)malloc(sizeof(erts_lcnt_thread_data_t)); + if (!eltd) { + ERTS_INTERNAL_ERROR("Lock counter failed to allocate memory!"); + } eltd->timer_set = 0; eltd->lock_in_conflict = 0; @@ -158,59 +179,64 @@ static char* lock_opt(Uint16 flag) { return "--"; } -static void print_lock_x(erts_lcnt_lock_t *lock, Uint16 flag, char *action, char *extra) { - erts_aint_t colls, tries, w_state, r_state; - erts_lcnt_lock_stats_t *stats = NULL; - +static void print_lock_x(erts_lcnt_lock_t *lock, Uint16 flag, char *action) { + erts_aint_t w_state, r_state; char *type; - int i; - + + if (strcmp(lock->name, "run_queue") != 0) return; type = lcnt_lock_type(lock->flag); r_state = ethr_atomic_read(&lock->r_state); w_state = ethr_atomic_read(&lock->w_state); - if (lock->flag & flag) { - erts_printf("%20s [%30s] [r/w state %4ld/%4ld] id %T %s\r\n", - action, - lock->name, - r_state, - w_state, - lock->id, - extra); + erts_fprintf(stderr,"%10s [%24s] [r/w state %4ld/%4ld] %2s id %T\r\n", + action, + lock->name, + r_state, + w_state, + type, + lock->id); } } - -static void print_lock(erts_lcnt_lock_t *lock, char *action) { - if (strcmp(lock->name, "proc_main") == 0) { - print_lock_x(lock, ERTS_LCNT_LT_ALL, action, ""); - } -} - #endif static erts_lcnt_lock_stats_t *lcnt_get_lock_stats(erts_lcnt_lock_t *lock, char *file, unsigned int line) { unsigned int i; erts_lcnt_lock_stats_t *stats = NULL; - - for (i = 0; i < lock->n_stats; i++) { - if ((lock->stats[i].file == file) && (lock->stats[i].line == line)) { - return &(lock->stats[i]); - } - } - if (lock->n_stats < ERTS_LCNT_MAX_LOCK_LOCATIONS) { - stats = &lock->stats[lock->n_stats]; - lock->n_stats++; - stats->file = file; - stats->line = line; - return stats; + if (erts_lcnt_rt_options & ERTS_LCNT_OPT_LOCATION) { + for (i = 0; i < lock->n_stats; i++) { + if ((lock->stats[i].file == file) && (lock->stats[i].line == line)) { + return &(lock->stats[i]); + } + } + if (lock->n_stats < ERTS_LCNT_MAX_LOCK_LOCATIONS) { + stats = &lock->stats[lock->n_stats]; + lock->n_stats++; + stats->file = file; + stats->line = line; + return stats; + } } return &lock->stats[0]; +} +static void lcnt_update_stats_hist(erts_lcnt_hist_t *hist, erts_lcnt_time_t *time_wait) { + int idx; + unsigned long r; + + if (time_wait->s > 0 || time_wait->ns > ERTS_LCNT_HISTOGRAM_MAX_NS) { + idx = ERTS_LCNT_HISTOGRAM_SLOT_SIZE - 1; + } else { + r = time_wait->ns >> ERTS_LCNT_HISTOGRAM_RSHIFT; + if (r) idx = lcnt_log2(r); + else idx = 0; + } + hist->ns[idx]++; } -static void lcnt_update_stats(erts_lcnt_lock_stats_t *stats, int lock_in_conflict, erts_lcnt_time_t *time_wait) { +static void lcnt_update_stats(erts_lcnt_lock_stats_t *stats, int lock_in_conflict, + erts_lcnt_time_t *time_wait) { ethr_atomic_inc(&stats->tries); @@ -220,6 +246,7 @@ static void lcnt_update_stats(erts_lcnt_lock_stats_t *stats, int lock_in_conflic if (time_wait) { lcnt_time_add(&(stats->timer), time_wait); stats->timer_n++; + lcnt_update_stats_hist(&stats->hist,time_wait); } } @@ -236,7 +263,7 @@ void erts_lcnt_init() { /* init tsd */ lcnt_n_thr = 0; - ethr_tsd_key_create(&lcnt_thr_data_key); + ethr_tsd_key_create(&lcnt_thr_data_key,"lcnt_data"); lcnt_lock(); @@ -248,6 +275,9 @@ void erts_lcnt_init() { /* init lcnt structure */ erts_lcnt_data = (erts_lcnt_data_t*)malloc(sizeof(erts_lcnt_data_t)); + if (!erts_lcnt_data) { + ERTS_INTERNAL_ERROR("Lock counter failed to allocate memory!"); + } erts_lcnt_data->current_locks = erts_lcnt_list_init(); erts_lcnt_data->deleted_locks = erts_lcnt_list_init(); @@ -269,6 +299,9 @@ erts_lcnt_lock_list_t *erts_lcnt_list_init(void) { erts_lcnt_lock_list_t *list; list = (erts_lcnt_lock_list_t*)malloc(sizeof(erts_lcnt_lock_list_t)); + if (!list) { + ERTS_INTERNAL_ERROR("Lock counter failed to allocate memory!"); + } list->head = NULL; list->tail = NULL; list->n = 0; @@ -330,8 +363,9 @@ void erts_lcnt_list_delete(erts_lcnt_lock_list_t *list, erts_lcnt_lock_t *lock) /* interface to erl_threads.h */ /* only lock on init and destroy, all others should use atomics */ void erts_lcnt_init_lock(erts_lcnt_lock_t *lock, char *name, Uint16 flag ) { - erts_lcnt_init_lock_x(lock, name, flag, am_undefined); + erts_lcnt_init_lock_x(lock, name, flag, NIL); } + void erts_lcnt_init_lock_x(erts_lcnt_lock_t *lock, char *name, Uint16 flag, Eterm id) { int i; if (!name) { @@ -360,7 +394,6 @@ void erts_lcnt_init_lock_x(erts_lcnt_lock_t *lock, char *name, Uint16 flag, Eter } erts_lcnt_list_insert(erts_lcnt_data->current_locks, lock); - lcnt_unlock(); } @@ -375,6 +408,9 @@ void erts_lcnt_destroy_lock(erts_lcnt_lock_t *lock) { /* copy structure and insert the copy */ deleted_lock = (erts_lcnt_lock_t*)malloc(sizeof(erts_lcnt_lock_t)); + if (!deleted_lock) { + ERTS_INTERNAL_ERROR("Lock counter failed to allocate memory!"); + } memcpy(deleted_lock, lock, sizeof(erts_lcnt_lock_t)); deleted_lock->next = NULL; @@ -417,8 +453,9 @@ void erts_lcnt_lock_opt(erts_lcnt_lock_t *lock, Uint16 option) { if ((w_state > 0) || (r_state > 0)) { eltd->lock_in_conflict = 1; - if (eltd->timer_set == 0) + if (eltd->timer_set == 0) { lcnt_time(&eltd->timer); + } eltd->timer_set++; } else { eltd->lock_in_conflict = 0; @@ -433,7 +470,7 @@ void erts_lcnt_lock(erts_lcnt_lock_t *lock) { if (!ERTS_LCNT_LOCK_TYPE(lock)) return; w_state = ethr_atomic_read(&lock->w_state); - ethr_atomic_inc( &lock->w_state); + ethr_atomic_inc(&lock->w_state); eltd = lcnt_get_thread_data(); @@ -446,10 +483,10 @@ void erts_lcnt_lock(erts_lcnt_lock_t *lock) { * 'atomicly'. All other locks will block the thread if w_state > 0 * i.e. locked. */ - if (eltd->timer_set == 0) + if (eltd->timer_set == 0) { lcnt_time(&eltd->timer); + } eltd->timer_set++; - } else { eltd->lock_in_conflict = 0; } @@ -459,11 +496,10 @@ void erts_lcnt_lock(erts_lcnt_lock_t *lock) { void erts_lcnt_lock_unaquire(erts_lcnt_lock_t *lock) { /* should check if this thread was "waiting" */ - if (erts_lcnt_rt_options & ERTS_LCNT_OPT_SUSPEND) return; if (!ERTS_LCNT_LOCK_TYPE(lock)) return; - ethr_atomic_dec( &lock->w_state); + ethr_atomic_dec(&lock->w_state); } /* erts_lcnt_lock_post @@ -491,7 +527,7 @@ void erts_lcnt_lock_post_x(erts_lcnt_lock_t *lock, char *file, unsigned int line if (!(lock->flag & (ERTS_LCNT_LT_RWMUTEX | ERTS_LCNT_LT_RWSPINLOCK))) { flowstate = ethr_atomic_read(&lock->flowstate); ASSERT(flowstate == 0); - ethr_atomic_inc( &lock->flowstate); + ethr_atomic_inc(&lock->flowstate); } #endif @@ -500,19 +536,12 @@ void erts_lcnt_lock_post_x(erts_lcnt_lock_t *lock, char *file, unsigned int line ASSERT(eltd); /* if lock was in conflict, time it */ - - if (erts_lcnt_rt_options & ERTS_LCNT_OPT_LOCATION) { - stats = lcnt_get_lock_stats(lock, file, line); - } else { - stats = &lock->stats[0]; - } - + stats = lcnt_get_lock_stats(lock, file, line); if (eltd->timer_set) { lcnt_time(&timer); lcnt_time_diff(&time_wait, &timer, &(eltd->timer)); lcnt_update_stats(stats, eltd->lock_in_conflict, &time_wait); - eltd->timer_set--; ASSERT(eltd->timer_set >= 0); } else { @@ -541,11 +570,11 @@ void erts_lcnt_unlock(erts_lcnt_lock_t *lock) { /* flowstate */ flowstate = ethr_atomic_read(&lock->flowstate); ASSERT(flowstate == 1); - ethr_atomic_dec( &lock->flowstate); + ethr_atomic_dec(&lock->flowstate); /* write state */ w_state = ethr_atomic_read(&lock->w_state); - ASSERT(w_state > 0) + ASSERT(w_state > 0); #endif ethr_atomic_dec(&lock->w_state); } @@ -582,9 +611,7 @@ void erts_lcnt_trylock(erts_lcnt_lock_t *lock, int res) { ethr_atomic_inc( &lock->flowstate); #endif ethr_atomic_inc(&lock->w_state); - lcnt_update_stats(&(lock->stats[0]), 0, NULL); - } else { ethr_atomic_inc(&lock->stats[0].tries); ethr_atomic_inc(&lock->stats[0].colls); diff --git a/erts/emulator/beam/erl_lock_count.h b/erts/emulator/beam/erl_lock_count.h index a4fc91b510..ffbb93da1b 100644 --- a/erts/emulator/beam/erl_lock_count.h +++ b/erts/emulator/beam/erl_lock_count.h @@ -35,6 +35,10 @@ * | | | - collisions (including trylock busy) * | | | - timer (time spent in waiting for lock) * | | | - n_timer (collisions excluding trylock busy) + * | | | - histogram + * | | | | - # 0 = log2(lock wait_time ns) + * | | | | - ... + * | | | | - # n = log2(lock wait_time ns) * * Each instance of a lock is the unique lock, i.e. set and id in that set. * For each lock there is a set of statistics with where and what impact @@ -61,9 +65,24 @@ #define ERTS_LOCK_COUNT_H__ #ifdef ERTS_ENABLE_LOCK_COUNT +#ifndef ERTS_ENABLE_LOCK_POSITION +/* Enable in order for _x variants of mtx functions to be used. */ +#define ERTS_ENABLE_LOCK_POSITION 1 +#endif + #include "ethread.h" -#define ERTS_LCNT_MAX_LOCK_LOCATIONS (10) +#define ERTS_LCNT_MAX_LOCK_LOCATIONS (10) + +/* histogram */ +#define ERTS_LCNT_HISTOGRAM_MAX_NS (((unsigned long)1LL << 28) - 1) +#if 0 || defined(HAVE_GETHRTIME) +#define ERTS_LCNT_HISTOGRAM_SLOT_SIZE (30) +#define ERTS_LCNT_HISTOGRAM_RSHIFT (0) +#else +#define ERTS_LCNT_HISTOGRAM_SLOT_SIZE (20) +#define ERTS_LCNT_HISTOGRAM_RSHIFT (10) +#endif #define ERTS_LCNT_LT_SPINLOCK (((Uint16) 1) << 0) #define ERTS_LCNT_LT_RWSPINLOCK (((Uint16) 1) << 1) @@ -98,6 +117,10 @@ typedef struct { extern erts_lcnt_time_t timer_start; +typedef struct { + Uint32 ns[ERTS_LCNT_HISTOGRAM_SLOT_SIZE]; /* log2 array of nano seconds occurences */ +} erts_lcnt_hist_t; + typedef struct erts_lcnt_lock_stats_s { /* "tries" and "colls" needs to be atomic since * trylock busy does not aquire a lock and there @@ -112,6 +135,7 @@ typedef struct erts_lcnt_lock_stats_s { unsigned long timer_n; /* #times waited for lock */ erts_lcnt_time_t timer; /* total wait time for lock */ + erts_lcnt_hist_t hist; } erts_lcnt_lock_stats_t; /* rw locks uses both states, other locks only uses w_state */ diff --git a/erts/emulator/beam/erl_map.c b/erts/emulator/beam/erl_map.c new file mode 100644 index 0000000000..5e740aacdd --- /dev/null +++ b/erts/emulator/beam/erl_map.c @@ -0,0 +1,837 @@ +/* + * %CopyrightBegin% + * + * Copyright Ericsson AB 2014. All Rights Reserved. + * + * The contents of this file are subject to the Erlang Public License, + * Version 1.1, (the "License"); you may not use this file except in + * compliance with the License. You should have received a copy of the + * Erlang Public License along with this software. If not, it can be + * retrieved online at http://www.erlang.org/. + * + * Software distributed under the License is distributed on an "AS IS" + * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See + * the License for the specific language governing rights and limitations + * under the License. + * + * %CopyrightEnd% + * + * Author: Björn-Egil Dahlberg + */ + +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif + +#include "sys.h" +#include "erl_vm.h" +#include "global.h" +#include "erl_process.h" +#include "error.h" +#include "bif.h" + +#include "erl_map.h" + +/* BIFs + * + * DONE: + * - erlang:is_map/1 + * - erlang:map_size/1 + * + * - maps:find/2 + * - maps:from_list/1 + * - maps:get/2 + * - maps:is_key/2 + * - maps:keys/1 + * - maps:merge/2 + * - maps:new/0 + * - maps:put/3 + * - maps:remove/2 + * - maps:to_list/1 + * - maps:update/3 + * - maps:values/1 + * + * TODO: + * - maps:foldl/3 + * - maps:foldr/3 + * - maps:map/3 + * - maps:size/1 + * - maps:without/2 + * + * DEBUG: for sharing calculation + * - erts_internal:map_to_tuple_keys/1 + */ + +/* erlang:map_size/1 + * the corresponding instruction is implemented in: + * beam/erl_bif_guard.c + */ + +BIF_RETTYPE map_size_1(BIF_ALIST_1) { + if (is_map(BIF_ARG_1)) { + Eterm *hp; + Uint hsz = 0; + map_t *mp = (map_t*)map_val(BIF_ARG_1); + Uint n = map_get_size(mp); + + erts_bld_uint(NULL, &hsz, n); + hp = HAlloc(BIF_P, hsz); + BIF_RET(erts_bld_uint(&hp, NULL, n)); + } + + BIF_ERROR(BIF_P, BADARG); +} + +/* maps:to_list/1 + */ + +BIF_RETTYPE maps_to_list_1(BIF_ALIST_1) { + if (is_map(BIF_ARG_1)) { + Uint n; + Eterm* hp; + Eterm *ks,*vs, res, tup; + map_t *mp = (map_t*)map_val(BIF_ARG_1); + + ks = map_get_keys(mp); + vs = map_get_values(mp); + n = map_get_size(mp); + hp = HAlloc(BIF_P, (2 + 3) * n); + res = NIL; + + while(n--) { + tup = TUPLE2(hp, ks[n], vs[n]); hp += 3; + res = CONS(hp, tup, res); hp += 2; + } + + BIF_RET(res); + } + + BIF_ERROR(BIF_P, BADARG); +} + +/* maps:find/2 + * return value if key *matches* a key in the map + */ + +int erts_maps_find(Eterm key, Eterm map, Eterm *value) { + + Eterm *ks,*vs; + map_t *mp; + Uint n,i; + + mp = (map_t*)map_val(map); + n = map_get_size(mp); + ks = map_get_keys(mp); + vs = map_get_values(mp); + + for( i = 0; i < n; i++) { + if (EQ(ks[i], key)) { + *value = vs[i]; + return 1; + } + } + return 0; +} + +BIF_RETTYPE maps_find_2(BIF_ALIST_2) { + if (is_map(BIF_ARG_2)) { + Eterm *hp, value,res; + + if (erts_maps_find(BIF_ARG_1, BIF_ARG_2, &value)) { + hp = HAlloc(BIF_P, 3); + res = make_tuple(hp); + *hp++ = make_arityval(2); + *hp++ = am_ok; + *hp++ = value; + BIF_RET(res); + } + + BIF_RET(am_error); + } + BIF_ERROR(BIF_P, BADARG); +} +/* maps:get/2 + * return value if key *matches* a key in the map + * exception bad_key if none matches + */ + + +int erts_maps_get(Eterm key, Eterm map, Eterm *value) { + Eterm *ks,*vs; + map_t *mp; + Uint n,i; + + mp = (map_t*)map_val(map); + n = map_get_size(mp); + + if (n == 0) + return 0; + + ks = map_get_keys(mp); + vs = map_get_values(mp); + + if (is_immed(key)) { + for( i = 0; i < n; i++) { + if (ks[i] == key) { + *value = vs[i]; + return 1; + } + } + } + + for( i = 0; i < n; i++) { + if (EQ(ks[i], key)) { + *value = vs[i]; + return 1; + } + } + return 0; +} + +BIF_RETTYPE maps_get_2(BIF_ALIST_2) { + if (is_map(BIF_ARG_2)) { + Eterm *hp; + Eterm value, error; + char *s_error; + + if (erts_maps_get(BIF_ARG_1, BIF_ARG_2, &value)) { + BIF_RET(value); + } + + s_error = "bad_key"; + error = am_atom_put(s_error, sys_strlen(s_error)); + + hp = HAlloc(BIF_P, 3); + BIF_P->fvalue = TUPLE2(hp, error, BIF_ARG_1); + BIF_ERROR(BIF_P, EXC_ERROR_2); + } + BIF_ERROR(BIF_P, BADARG); +} + +/* maps:from_list/1 + * List may be unsorted [{K,V}] + */ + +BIF_RETTYPE maps_from_list_1(BIF_ALIST_1) { + Eterm *kv, item = BIF_ARG_1; + Eterm *hp, *thp,*vs, *ks, keys, res; + map_t *mp; + Uint size = 0, unused_size = 0; + Sint c = 0; + Sint idx = 0; + + if (is_list(item) || is_nil(item)) { + + /* Calculate size and check validity */ + + while(is_list(item)) { + res = CAR(list_val(item)); + if (is_not_tuple(res)) + goto error; + + kv = tuple_val(res); + if (*kv != make_arityval(2)) + goto error; + + size++; + item = CDR(list_val(item)); + } + + if (is_not_nil(item)) + goto error; + + hp = HAlloc(BIF_P, 3 + 1 + (2 * size)); + thp = hp; + keys = make_tuple(hp); + *hp++ = make_arityval(size); + ks = hp; + hp += size; + mp = (map_t*)hp; + res = make_map(mp); + hp += MAP_HEADER_SIZE; + vs = hp; + + mp->thing_word = MAP_HEADER; + mp->size = size; /* set later, might shrink*/ + mp->keys = keys; + + if (size == 0) + BIF_RET(res); + + item = BIF_ARG_1; + + /* first entry */ + kv = tuple_val(CAR(list_val(item))); + ks[0] = kv[1]; + vs[0] = kv[2]; + size = 1; + item = CDR(list_val(item)); + + /* insert sort key/value pairs */ + while(is_list(item)) { + + kv = tuple_val(CAR(list_val(item))); + + /* compare ks backwards + * idx represent word index to be written (hole position). + * We cannot copy the elements when searching since we might + * have an equal key. So we search for just the index first =( + * + * It is perhaps faster to move the values in the first pass. + * Check for uniqueness during insert phase and then have a + * second phace compacting the map if duplicates are found + * during insert. .. or do someother sort .. shell-sort perhaps. + */ + + idx = size; + + while(idx > 0 && (c = CMP_TERM(kv[1],ks[idx-1])) < 0) { idx--; } + + if (c == 0) { + /* last compare was equal, + * i.e. we have to release memory + * and overwrite that key/value + */ + ks[idx-1] = kv[1]; + vs[idx-1] = kv[2]; + unused_size++; + } else { + Uint i = size; + while(i > idx) { + ks[i] = ks[i-1]; + vs[i] = vs[i-1]; + i--; + } + ks[idx] = kv[1]; + vs[idx] = kv[2]; + size++; + } + item = CDR(list_val(item)); + } + + if (unused_size) { + /* the key tuple is embedded in the heap + * write a bignum to clear it. + */ + /* release values as normal since they are on the top of the heap */ + + ks[size] = make_pos_bignum_header(unused_size - 1); + HRelease(BIF_P, vs + size + unused_size, vs + size); + } + + *thp = make_arityval(size); + mp->size = size; + BIF_RET(res); + } + +error: + + BIF_ERROR(BIF_P, BADARG); +} + +/* maps:is_key/2 + */ + +BIF_RETTYPE maps_is_key_2(BIF_ALIST_2) { + if (is_map(BIF_ARG_2)) { + Eterm *ks, key; + map_t *mp; + Uint n,i; + + mp = (map_t*)map_val(BIF_ARG_2); + key = BIF_ARG_1; + n = map_get_size(mp); + ks = map_get_keys(mp); + + if (n == 0) + BIF_RET(am_false); + + if (is_immed(key)) { + for( i = 0; i < n; i++) { + if (ks[i] == key) { + BIF_RET(am_true); + } + } + } + + for( i = 0; i < n; i++) { + if (EQ(ks[i], key)) { + BIF_RET(am_true); + } + } + BIF_RET(am_false); + } + BIF_ERROR(BIF_P, BADARG); +} + +/* maps:keys/1 + */ + +BIF_RETTYPE maps_keys_1(BIF_ALIST_1) { + if (is_map(BIF_ARG_1)) { + Eterm *hp, *ks, res = NIL; + map_t *mp; + Uint n; + + mp = (map_t*)map_val(BIF_ARG_1); + n = map_get_size(mp); + + if (n == 0) + BIF_RET(res); + + hp = HAlloc(BIF_P, (2 * n)); + ks = map_get_keys(mp); + + while(n--) { + res = CONS(hp, ks[n], res); hp += 2; + } + + BIF_RET(res); + } + BIF_ERROR(BIF_P, BADARG); +} +/* maps:merge/2 + */ + +BIF_RETTYPE maps_merge_2(BIF_ALIST_2) { + if (is_map(BIF_ARG_1) && is_map(BIF_ARG_2)) { + Eterm *hp,*thp; + Eterm tup; + Eterm *ks,*vs,*ks1,*vs1,*ks2,*vs2; + map_t *mp1,*mp2,*mp_new; + Uint n1,n2,i1,i2,need,unused_size=0; + int c = 0; + + mp1 = (map_t*)map_val(BIF_ARG_1); + mp2 = (map_t*)map_val(BIF_ARG_2); + n1 = map_get_size(mp1); + n2 = map_get_size(mp2); + + need = MAP_HEADER_SIZE + 1 + 2*(n1 + n2); + + hp = HAlloc(BIF_P, need); + thp = hp; + tup = make_tuple(thp); + ks = hp + 1; hp += 1 + n1 + n2; + mp_new = (map_t*)hp; hp += MAP_HEADER_SIZE; + vs = hp; hp += n1 + n2; + + mp_new->thing_word = MAP_HEADER; + mp_new->size = 0; + mp_new->keys = tup; + + i1 = 0; i2 = 0; + ks1 = map_get_keys(mp1); + vs1 = map_get_values(mp1); + ks2 = map_get_keys(mp2); + vs2 = map_get_values(mp2); + + while(i1 < n1 && i2 < n2) { + c = CMP_TERM(ks1[i1],ks2[i2]); + if ( c == 0) { + /* use righthand side arguments map value, + * but advance both maps */ + *ks++ = ks2[i2]; + *vs++ = vs2[i2]; + i1++, i2++, unused_size++; + } else if ( c < 0) { + *ks++ = ks1[i1]; + *vs++ = vs1[i1]; + i1++; + } else { + *ks++ = ks2[i2]; + *vs++ = vs2[i2]; + i2++; + } + } + + /* copy remaining */ + while (i1 < n1) { + *ks++ = ks1[i1]; + *vs++ = vs1[i1]; + i1++; + } + + while (i2 < n2) { + *ks++ = ks2[i2]; + *vs++ = vs2[i2]; + i2++; + } + + if (unused_size) { + /* the key tuple is embedded in the heap, write a bignum to clear it. + * + * release values as normal since they are on the top of the heap + * size = n1 + n1 - unused_size + */ + + *ks = make_pos_bignum_header(unused_size - 1); + HRelease(BIF_P, vs + unused_size, vs); + } + + mp_new->size = n1 + n2 - unused_size; + *thp = make_arityval(n1 + n2 - unused_size); + + BIF_RET(make_map(mp_new)); + } + BIF_ERROR(BIF_P, BADARG); +} +/* maps:new/2 + */ + +BIF_RETTYPE maps_new_0(BIF_ALIST_0) { + Eterm* hp; + Eterm tup; + map_t *mp; + + hp = HAlloc(BIF_P, (MAP_HEADER_SIZE + 1)); + tup = make_tuple(hp); + *hp++ = make_arityval(0); + + mp = (map_t*)hp; + mp->thing_word = MAP_HEADER; + mp->size = 0; + mp->keys = tup; + + BIF_RET(make_map(mp)); +} + +/* maps:put/3 + */ + +Eterm erts_maps_put(Process *p, Eterm key, Eterm value, Eterm map) { + Sint n,i; + Sint c = 0; + Eterm* hp, *shp; + Eterm *ks,*vs, res, tup; + map_t *mp = (map_t*)map_val(map); + + n = map_get_size(mp); + + if (n == 0) { + hp = HAlloc(p, MAP_HEADER_SIZE + 1 + 2); + tup = make_tuple(hp); + *hp++ = make_arityval(1); + *hp++ = key; + res = make_map(hp); + *hp++ = MAP_HEADER; + *hp++ = 1; + *hp++ = tup; + *hp++ = value; + + return res; + } + + ks = map_get_keys(mp); + vs = map_get_values(mp); + + /* only allocate for values, + * assume key-tuple will be intact + */ + + hp = HAlloc(p, MAP_HEADER_SIZE + n); + shp = hp; /* save hp, used if optimistic update fails */ + res = make_map(hp); + *hp++ = MAP_HEADER; + *hp++ = n; + *hp++ = mp->keys; + + if (is_immed(key)) { + for( i = 0; i < n; i ++) { + if (ks[i] == key) { + *hp++ = value; + vs++; + c = 1; + } else { + *hp++ = *vs++; + } + } + } else { + for( i = 0; i < n; i ++) { + if (EQ(ks[i], key)) { + *hp++ = value; + vs++; + c = 1; + } else { + *hp++ = *vs++; + } + } + } + + if (c) + return res; + + /* need to make a new tuple, + * use old hp since it needs to be recreated anyway. + */ + tup = make_tuple(shp); + *shp++ = make_arityval(n+1); + + hp = HAlloc(p, 3 + n + 1); + res = make_map(hp); + *hp++ = MAP_HEADER; + *hp++ = n + 1; + *hp++ = tup; + + ks = map_get_keys(mp); + vs = map_get_values(mp); + + ASSERT(n >= 0); + + /* copy map in order */ + while (n && ((c = CMP_TERM(*ks, key)) < 0)) { + *shp++ = *ks++; + *hp++ = *vs++; + n--; + } + + *shp++ = key; + *hp++ = value; + + ASSERT(n >= 0); + + while(n--) { + *shp++ = *ks++; + *hp++ = *vs++; + } + /* we have one word remaining + * this will work out fine once we get the size word + * in the header. + */ + *shp = make_pos_bignum_header(0); + return res; +} + +BIF_RETTYPE maps_put_3(BIF_ALIST_3) { + if (is_map(BIF_ARG_3)) { + BIF_RET(erts_maps_put(BIF_P, BIF_ARG_1, BIF_ARG_2, BIF_ARG_3)); + } + BIF_ERROR(BIF_P, BADARG); +} + +/* maps:remove/3 + */ + +int erts_maps_remove(Process *p, Eterm key, Eterm map, Eterm *res) { + Sint n; + Uint need; + Eterm *hp_start; + Eterm *thp, *mhp; + Eterm *ks, *vs, tup; + map_t *mp = (map_t*)map_val(map); + + n = map_get_size(mp); + + if (n == 0) { + *res = map; + return 1; + } + + ks = map_get_keys(mp); + vs = map_get_values(mp); + + /* Assume key exists. + * Release allocated if it didn't. + * Allocate key tuple first. + */ + + need = n + 1 - 1 + 3 + n - 1; /* tuple - 1 + map - 1 */ + hp_start = HAlloc(p, need); + thp = hp_start; + mhp = thp + n; /* offset with tuple heap size */ + + tup = make_tuple(thp); + *thp++ = make_arityval(n - 1); + + *res = make_map(mhp); + *mhp++ = MAP_HEADER; + *mhp++ = n - 1; + *mhp++ = tup; + + if (is_immed(key)) { + while (1) { + if (*ks == key) { + goto found_key; + } else if (--n) { + *mhp++ = *vs++; + *thp++ = *ks++; + } else + break; + } + } else { + while(1) { + if (EQ(*ks, key)) { + goto found_key; + } else if (--n) { + *mhp++ = *vs++; + *thp++ = *ks++; + } else + break; + } + } + + /* Not found, remove allocated memory + * and return previous map. + */ + HRelease(p, hp_start + need, hp_start); + + *res = map; + return 1; + +found_key: + /* Copy rest of keys and values */ + if (--n) { + sys_memcpy(mhp, vs+1, n*sizeof(Eterm)); + sys_memcpy(thp, ks+1, n*sizeof(Eterm)); + } + return 1; +} + +BIF_RETTYPE maps_remove_2(BIF_ALIST_2) { + if (is_map(BIF_ARG_2)) { + Eterm res; + if (erts_maps_remove(BIF_P, BIF_ARG_1, BIF_ARG_2, &res)) { + BIF_RET(res); + } + } + BIF_ERROR(BIF_P, BADARG); +} + +/* maps:update/3 + */ + +int erts_maps_update(Process *p, Eterm key, Eterm value, Eterm map, Eterm *res) { + Sint n,i; + Eterm* hp,*shp; + Eterm *ks,*vs; + map_t *mp = (map_t*)map_val(map); + + if ((n = map_get_size(mp)) == 0) { + return 0; + } + + ks = map_get_keys(mp); + vs = map_get_values(mp); + + /* only allocate for values, + * assume key-tuple will be intact + */ + + hp = HAlloc(p, MAP_HEADER_SIZE + n); + shp = hp; + *hp++ = MAP_HEADER; + *hp++ = n; + *hp++ = mp->keys; + + if (is_immed(key)) { + for( i = 0; i < n; i ++) { + if (ks[i] == key) { + goto found_key; + } else { + *hp++ = *vs++; + } + } + } else { + for( i = 0; i < n; i ++) { + if (EQ(ks[i], key)) { + goto found_key; + } else { + *hp++ = *vs++; + } + } + } + + HRelease(p, shp + MAP_HEADER_SIZE + n, shp); + return 0; + +found_key: + *hp++ = value; + vs++; + if (++i < n) + sys_memcpy(hp, vs, (n - i)*sizeof(Eterm)); + *res = make_map(shp); + return 1; +} + +BIF_RETTYPE maps_update_3(BIF_ALIST_3) { + if (is_map(BIF_ARG_3)) { + Eterm res; + if (erts_maps_update(BIF_P, BIF_ARG_1, BIF_ARG_2, BIF_ARG_3, &res)) { + BIF_RET(res); + } + } + BIF_ERROR(BIF_P, BADARG); +} + + +/* maps:values/1 + */ + +BIF_RETTYPE maps_values_1(BIF_ALIST_1) { + if (is_map(BIF_ARG_1)) { + Eterm *hp, *vs, res = NIL; + map_t *mp; + Uint n; + + mp = (map_t*)map_val(BIF_ARG_1); + n = map_get_size(mp); + + if (n == 0) + BIF_RET(res); + + hp = HAlloc(BIF_P, (2 * n)); + vs = map_get_values(mp); + + while(n--) { + res = CONS(hp, vs[n], res); hp += 2; + } + + BIF_RET(res); + } + BIF_ERROR(BIF_P, BADARG); +} + +int erts_validate_and_sort_map(map_t* mp) +{ + Eterm *ks = map_get_keys(mp); + Eterm *vs = map_get_values(mp); + Uint sz = map_get_size(mp); + Uint ix,jx; + Eterm tmp; + int c; + + /* sort */ + + for (ix = 1; ix < sz; ix++) { + jx = ix; + while( jx > 0 && (c = CMP_TERM(ks[jx],ks[jx-1])) <= 0 ) { + /* identical key -> error */ + if (c == 0) return 0; + + tmp = ks[jx]; + ks[jx] = ks[jx - 1]; + ks[jx - 1] = tmp; + + tmp = vs[jx]; + vs[jx] = vs[jx - 1]; + vs[jx - 1] = tmp; + + jx--; + } + } + return 1; +} + +/* + * erts_internal:map_to_tuple_keys/1 + * + * Used in erts_debug:size/1 + */ + +BIF_RETTYPE erts_internal_map_to_tuple_keys_1(BIF_ALIST_1) { + if (is_map(BIF_ARG_1)) { + map_t *mp = (map_t*)map_val(BIF_ARG_1); + BIF_RET(mp->keys); + } + BIF_ERROR(BIF_P, BADARG); +} diff --git a/erts/emulator/beam/erl_map.h b/erts/emulator/beam/erl_map.h new file mode 100644 index 0000000000..cfacb2ec28 --- /dev/null +++ b/erts/emulator/beam/erl_map.h @@ -0,0 +1,72 @@ +/* + * %CopyrightBegin% + * + * Copyright Ericsson AB 2014. All Rights Reserved. + * + * The contents of this file are subject to the Erlang Public License, + * Version 1.1, (the "License"); you may not use this file except in + * compliance with the License. You should have received a copy of the + * Erlang Public License along with this software. If not, it can be + * retrieved online at http://www.erlang.org/. + * + * Software distributed under the License is distributed on an "AS IS" + * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See + * the License for the specific language governing rights and limitations + * under the License. + * + * %CopyrightEnd% + */ + + +#ifndef __ERL_MAP_H__ +#define __ERL_MAP_H__ + +#include "sys.h" +/* MAP */ + +typedef struct map_s { + Eterm thing_word; + Uint size; + Eterm keys; /* tuple */ +} map_t; +/* map node + * + * ----------- + * Eterm THING + * Uint size + * Eterm Keys -> {K1, K2, K3, ..., Kn} where n = size + * ---- + * Eterm V1 + * ... + * Eterm Vn, where n = size + * ----------- + */ + + + +/* erl_term.h stuff */ +#define make_map(x) make_boxed((Eterm*)(x)) +#define make_map_rel(x, BASE) make_boxed_rel((Eterm*)(x),(BASE)) +#define is_map(x) (is_boxed((x)) && is_map_header(*boxed_val((x)))) +#define is_map_rel(RTERM,BASE) is_map(rterm2wterm(RTERM,BASE)) +#define is_not_map(x) (!is_map((x))) +#define is_map_header(x) (((x) & (_TAG_HEADER_MASK)) == _TAG_HEADER_MAP) +#define header_is_map(x) ((((x) & (_HEADER_SUBTAG_MASK)) == MAP_SUBTAG)) +#define map_val(x) (_unchecked_boxed_val((x))) +#define map_val_rel(RTERM, BASE) map_val(rterm2wterm(RTERM, BASE)) + +#define map_get_values(x) (((Eterm *)(x)) + 3) +#define map_get_keys(x) (((Eterm *)tuple_val(((map_t *)(x))->keys)) + 1) +#define map_get_size(x) (((map_t*)(x))->size) + +#define MAP_HEADER _make_header(1,_TAG_HEADER_MAP) +#define MAP_HEADER_SIZE (sizeof(map_t) / sizeof(Eterm)) + +Eterm erts_maps_put(Process *p, Eterm key, Eterm value, Eterm map); +int erts_maps_update(Process *p, Eterm key, Eterm value, Eterm map, Eterm *res); +int erts_maps_find(Eterm key, Eterm map, Eterm *value); +int erts_maps_get(Eterm key, Eterm map, Eterm *value); +int erts_maps_remove(Process *p, Eterm key, Eterm map, Eterm *res); +int erts_validate_and_sort_map(map_t* map); +#endif + diff --git a/erts/emulator/beam/erl_message.c b/erts/emulator/beam/erl_message.c index 919567ab27..59a677a12c 100644 --- a/erts/emulator/beam/erl_message.c +++ b/erts/emulator/beam/erl_message.c @@ -46,10 +46,12 @@ ERTS_SCHED_PREF_QUICK_ALLOC_IMPL(message, +#ifdef DEBUG static ERTS_INLINE int in_heapfrag(const Eterm* ptr, const ErlHeapFragment *bp) { return ((unsigned)(ptr - bp->mem) < bp->used_size); } +#endif void @@ -296,36 +298,6 @@ erts_msg_distext2heap(Process *pp, return THE_NON_VALUE; } -static ERTS_INLINE void -notify_new_message(Process *receiver) -{ - ERTS_SMP_LC_ASSERT(ERTS_PROC_LOCK_STATUS - & erts_proc_lc_my_proc_locks(receiver)); - - switch (receiver->status) { - case P_GARBING: - switch (receiver->gcstatus) { - case P_SUSPENDED: - goto suspended; - case P_WAITING: - goto waiting; - default: - break; - } - break; - case P_SUSPENDED: - suspended: - receiver->rstatus = P_RUNABLE; - break; - case P_WAITING: - waiting: - erts_add_to_runq(receiver); - break; - default: - break; - } -} - void erts_queue_dist_message(Process *rcvr, ErtsProcLocks *rcvr_locks, @@ -339,7 +311,7 @@ erts_queue_dist_message(Process *rcvr, Sint tok_serial = 0; #endif #ifdef ERTS_SMP - ErtsProcLocks need_locks; + erts_aint_t state; #endif ERTS_SMP_LC_ASSERT(*rcvr_locks == erts_proc_lc_my_proc_locks(rcvr)); @@ -347,20 +319,21 @@ erts_queue_dist_message(Process *rcvr, mp = message_alloc(); #ifdef ERTS_SMP - need_locks = ~(*rcvr_locks) & (ERTS_PROC_LOCK_MSGQ|ERTS_PROC_LOCK_STATUS); - if (need_locks) { - *rcvr_locks |= need_locks; - if (erts_smp_proc_trylock(rcvr, need_locks) == EBUSY) { - if (need_locks == ERTS_PROC_LOCK_MSGQ) { + if (!(*rcvr_locks & ERTS_PROC_LOCK_MSGQ)) { + if (erts_smp_proc_trylock(rcvr, ERTS_PROC_LOCK_MSGQ) == EBUSY) { + ErtsProcLocks need_locks = ERTS_PROC_LOCK_MSGQ; + if (*rcvr_locks & ERTS_PROC_LOCK_STATUS) { erts_smp_proc_unlock(rcvr, ERTS_PROC_LOCK_STATUS); - need_locks = (ERTS_PROC_LOCK_MSGQ - | ERTS_PROC_LOCK_STATUS); + need_locks |= ERTS_PROC_LOCK_STATUS; } erts_smp_proc_lock(rcvr, need_locks); } } - if (rcvr->is_exiting || ERTS_PROC_PENDING_EXIT(rcvr)) { + state = erts_smp_atomic32_read_acqb(&rcvr->state); + if (state & (ERTS_PSFLG_PENDING_EXIT|ERTS_PSFLG_EXITING)) { + if (!(*rcvr_locks & ERTS_PROC_LOCK_MSGQ)) + erts_smp_proc_unlock(rcvr, ERTS_PROC_LOCK_MSGQ); /* Drop message if receiver is exiting or has a pending exit ... */ if (is_not_nil(token)) { ErlHeapFragment *heap_frag; @@ -376,6 +349,8 @@ erts_queue_dist_message(Process *rcvr, /* Ahh... need to decode it in order to trace it... */ ErlHeapFragment *mbuf; Eterm msg; + if (!(*rcvr_locks & ERTS_PROC_LOCK_MSGQ)) + erts_smp_proc_unlock(rcvr, ERTS_PROC_LOCK_MSGQ); message_free(mp); msg = erts_msg_distext2heap(rcvr, rcvr_locks, &mbuf, &token, dist_ext); if (is_value(msg)) @@ -437,26 +412,33 @@ erts_queue_dist_message(Process *rcvr, mp->data.dist_ext = dist_ext; LINK_MESSAGE(rcvr, mp); - notify_new_message(rcvr); + if (!(*rcvr_locks & ERTS_PROC_LOCK_MSGQ)) + erts_smp_proc_unlock(rcvr, ERTS_PROC_LOCK_MSGQ); + + erts_proc_notify_new_message(rcvr); } } /* Add a message last in message queue */ -void -erts_queue_message(Process* receiver, - ErtsProcLocks *receiver_locks, - ErlHeapFragment* bp, - Eterm message, - Eterm seq_trace_token +static Sint +queue_message(Process *c_p, + Process* receiver, + ErtsProcLocks *receiver_locks, + erts_aint32_t *receiver_state, + ErlHeapFragment* bp, + Eterm message, + Eterm seq_trace_token #ifdef USE_VM_PROBES , Eterm dt_utag #endif -) + ) { + Sint res; ErlMessage* mp; -#ifdef ERTS_SMP - ErtsProcLocks need_locks; -#else + int locked_msgq = 0; + erts_aint_t state; + +#ifndef ERTS_SMP ASSERT(bp != NULL || receiver->mbuf == NULL); #endif @@ -464,31 +446,45 @@ erts_queue_message(Process* receiver, mp = message_alloc(); + if (receiver_state) + state = *receiver_state; + else + state = erts_smp_atomic32_read_acqb(&receiver->state); + #ifdef ERTS_SMP - need_locks = ~(*receiver_locks) & (ERTS_PROC_LOCK_MSGQ - | ERTS_PROC_LOCK_STATUS); - if (need_locks) { - *receiver_locks |= need_locks; - if (erts_smp_proc_trylock(receiver, need_locks) == EBUSY) { - if (need_locks == ERTS_PROC_LOCK_MSGQ) { + + if (state & (ERTS_PSFLG_EXITING|ERTS_PSFLG_PENDING_EXIT)) + goto exiting; + + if (!(*receiver_locks & ERTS_PROC_LOCK_MSGQ)) { + if (erts_smp_proc_trylock(receiver, ERTS_PROC_LOCK_MSGQ) == EBUSY) { + ErtsProcLocks need_locks = ERTS_PROC_LOCK_MSGQ; + if (*receiver_locks & ERTS_PROC_LOCK_STATUS) { erts_smp_proc_unlock(receiver, ERTS_PROC_LOCK_STATUS); - need_locks = (ERTS_PROC_LOCK_MSGQ - | ERTS_PROC_LOCK_STATUS); + need_locks |= ERTS_PROC_LOCK_STATUS; } erts_smp_proc_lock(receiver, need_locks); } + locked_msgq = 1; + state = erts_smp_atomic32_read_nob(&receiver->state); + if (receiver_state) + *receiver_state = state; } - if (receiver->is_exiting || ERTS_PROC_PENDING_EXIT(receiver)) { - /* Drop message if receiver is exiting or has a pending - * exit ... - */ +#endif + + if (state & (ERTS_PSFLG_PENDING_EXIT|ERTS_PSFLG_EXITING)) { +#ifdef ERTS_SMP + exiting: +#endif + /* Drop message if receiver is exiting or has a pending exit... */ + if (locked_msgq) + erts_smp_proc_unlock(receiver, ERTS_PROC_LOCK_MSGQ); if (bp) free_message_buffer(bp); message_free(mp); - return; + return 0; } -#endif ERL_MESSAGE_TERM(mp) = message; ERL_MESSAGE_TOKEN(mp) = seq_trace_token; @@ -498,7 +494,10 @@ erts_queue_message(Process* receiver, mp->next = NULL; mp->data.heap_frag = bp; -#ifdef ERTS_SMP +#ifndef ERTS_SMP + res = receiver->msg.len; +#else + res = receiver->msg_inq.len; if (*receiver_locks & ERTS_PROC_LOCK_MAIN) { /* * We move 'in queue' to 'private queue' and place @@ -508,15 +507,15 @@ erts_queue_message(Process* receiver, * we don't need to include the 'in queue' in * the root set when garbage collecting. */ + res += receiver->msg.len; ERTS_SMP_MSGQ_MV_INQ2PRIVQ(receiver); LINK_MESSAGE_PRIVQ(receiver, mp); } - else { + else +#endif + { LINK_MESSAGE(receiver, mp); } -#else - LINK_MESSAGE(receiver, mp); -#endif #ifdef USE_VM_PROBES if (DTRACE_ENABLED(message_queued)) { @@ -536,15 +535,43 @@ erts_queue_message(Process* receiver, tok_label, tok_lastcnt, tok_serial); } #endif - notify_new_message(receiver); - if (IS_TRACED_FL(receiver, F_TRACE_RECEIVE)) { + if (IS_TRACED_FL(receiver, F_TRACE_RECEIVE)) trace_receive(receiver, message); - } + + if (locked_msgq) + erts_smp_proc_unlock(receiver, ERTS_PROC_LOCK_MSGQ); + + erts_proc_notify_new_message(receiver); #ifndef ERTS_SMP ERTS_HOLE_CHECK(receiver); #endif + return res; +} + +void +erts_queue_message(Process* receiver, + ErtsProcLocks *receiver_locks, + ErlHeapFragment* bp, + Eterm message, + Eterm seq_trace_token +#ifdef USE_VM_PROBES + , Eterm dt_utag +#endif + ) +{ + queue_message(NULL, + receiver, + receiver_locks, + NULL, + bp, + message, + seq_trace_token +#ifdef USE_VM_PROBES + , dt_utag +#endif + ); } void @@ -576,9 +603,7 @@ erts_move_msg_mbuf_to_heap(Eterm** hpp, ErlOffHeap* off_heap, ErlMessage *msg) #endif #ifdef HARD_DEBUG - ProcBin *dbg_mso_start = off_heap->mso; - ErlFunThing *dbg_fun_start = off_heap->funs; - ExternalThing *dbg_external_start = off_heap->externals; + struct erl_off_heap_header* dbg_oh_start = off_heap->first; Eterm dbg_term, dbg_token; ErlHeapFragment *dbg_bp; Uint *dbg_hp, *dbg_thp_start; @@ -752,48 +777,16 @@ copy_done: int i, j; ErlHeapFragment* frag; { - ProcBin *mso = off_heap->mso; - i = j = 0; - while (mso != dbg_mso_start) { - mso = mso->next; - i++; - } - for (frag=bp; frag; frag=frag->next) { - mso = frag->off_heap.mso; - while (mso) { - mso = mso->next; - j++; - } - } - ASSERT(i == j); - } - { - ErlFunThing *fun = off_heap->funs; - i = j = 0; - while (fun != dbg_fun_start) { - fun = fun->next; - i++; - } - for (frag=bp; frag; frag=frag->next) { - fun = frag->off_heap.funs; - while (fun) { - fun = fun->next; - j++; - } - } - ASSERT(i == j); - } - { - ExternalThing *external = off_heap->externals; + struct erl_off_heap_header* dbg_oh = off_heap->first; i = j = 0; - while (external != dbg_external_start) { - external = external->next; + while (dbg_oh != dbg_oh_start) { + dbg_oh = dbg_oh->next; i++; } for (frag=bp; frag; frag=frag->next) { - external = frag->off_heap.externals; - while (external) { - external = external->next; + dbg_oh = frag->off_heap.first; + while (dbg_oh) { + dbg_oh = dbg_oh->next; j++; } } @@ -878,7 +871,7 @@ erts_move_msg_attached_data_to_heap(Eterm **hpp, ErlOffHeap *ohp, ErlMessage *ms * Send a local message when sender & receiver processes are known. */ -void +Sint erts_send_message(Process* sender, Process* receiver, ErtsProcLocks *receiver_locks, @@ -888,6 +881,7 @@ erts_send_message(Process* sender, Uint msize; ErlHeapFragment* bp = NULL; Eterm token = NIL; + Sint res = 0; #ifdef USE_VM_PROBES DTRACE_CHARBUF(sender_name, 64); DTRACE_CHARBUF(receiver_name, 64); @@ -902,8 +896,10 @@ erts_send_message(Process* sender, #ifdef USE_VM_PROBES *sender_name = *receiver_name = '\0'; if (DTRACE_ENABLED(message_send)) { - erts_snprintf(sender_name, sizeof(DTRACE_CHARBUF_NAME(sender_name)), "%T", sender->id); - erts_snprintf(receiver_name, sizeof(DTRACE_CHARBUF_NAME(receiver_name)), "%T", receiver->id); + erts_snprintf(sender_name, sizeof(DTRACE_CHARBUF_NAME(sender_name)), + "%T", sender->common.id); + erts_snprintf(receiver_name, sizeof(DTRACE_CHARBUF_NAME(receiver_name)), + "%T", receiver->common.id); } #endif if (SEQ_TRACE_TOKEN(sender) != NIL && !(flags & ERTS_SND_FLG_NO_SEQ_TRACE)) { @@ -925,7 +921,7 @@ erts_send_message(Process* sender, seq_trace_update_send(sender); seq_trace_output(stoken, message, SEQ_TRACE_SEND, - receiver->id, sender); + receiver->common.id, sender); seq_trace_size = 6; /* TUPLE5 */ #ifdef USE_VM_PROBES } @@ -956,7 +952,7 @@ erts_send_message(Process* sender, #ifdef DTRACE_TAG_HARDDEBUG erts_fprintf(stderr, "Dtrace -> (%T) Spreading tag (%T) with " - "message %T!\r\n",sender->id, utag, message); + "message %T!\r\n",sender->common.id, utag, message); #endif } #endif @@ -974,15 +970,17 @@ erts_send_message(Process* sender, msize, tok_label, tok_lastcnt, tok_serial); } #endif - erts_queue_message(receiver, - receiver_locks, - bp, - message, - token + res = queue_message(NULL, + receiver, + receiver_locks, + NULL, + bp, + message, + token #ifdef USE_VM_PROBES - , utag + , utag #endif - ); + ); BM_SWAP_TIMER(send,system); } else if (sender == receiver) { /* Drop message if receiver has a pending exit ... */ @@ -1026,73 +1024,47 @@ erts_send_message(Process* sender, ERTS_SMP_MSGQ_MV_INQ2PRIVQ(receiver); LINK_MESSAGE_PRIVQ(receiver, mp); + res = receiver->msg.len; + if (IS_TRACED_FL(receiver, F_TRACE_RECEIVE)) { trace_receive(receiver, message); } } BM_SWAP_TIMER(send,system); - return; } else { -#ifdef ERTS_SMP ErlOffHeap *ohp; Eterm *hp; + erts_aint32_t state; + BM_SWAP_TIMER(send,size); msize = size_object(message); BM_SWAP_TIMER(size,send); - hp = erts_alloc_message_heap(msize,&bp,&ohp,receiver,receiver_locks); + hp = erts_alloc_message_heap_state(msize, + &bp, + &ohp, + receiver, + receiver_locks, + &state); BM_SWAP_TIMER(send,copy); message = copy_struct(message, msize, &hp, ohp); BM_MESSAGE_COPIED(msz); BM_SWAP_TIMER(copy,send); DTRACE6(message_send, sender_name, receiver_name, msize, tok_label, tok_lastcnt, tok_serial); - erts_queue_message(receiver, receiver_locks, bp, message, token -#ifdef USE_VM_PROBES - , NIL -#endif - ); - BM_SWAP_TIMER(send,system); -#else - ErlMessage* mp = message_alloc(); - Eterm *hp; - BM_SWAP_TIMER(send,size); - msize = size_object(message); - BM_SWAP_TIMER(size,send); - - if (receiver->stop - receiver->htop <= msize) { - BM_SWAP_TIMER(send,system); - erts_garbage_collect(receiver, msize, receiver->arg_reg, receiver->arity); - BM_SWAP_TIMER(system,send); - } - hp = receiver->htop; - receiver->htop = hp + msize; - BM_SWAP_TIMER(send,copy); - message = copy_struct(message, msize, &hp, &receiver->off_heap); - BM_MESSAGE_COPIED(msize); - BM_SWAP_TIMER(copy,send); - DTRACE6(message_send, sender_name, receiver_name, - (uint32_t)msize, tok_label, tok_lastcnt, tok_serial); - ERL_MESSAGE_TERM(mp) = message; - ERL_MESSAGE_TOKEN(mp) = NIL; + res = queue_message(sender, + receiver, + receiver_locks, + &state, + bp, + message, + token #ifdef USE_VM_PROBES - ERL_MESSAGE_DT_UTAG(mp) = NIL; + , NIL #endif - mp->next = NULL; - mp->data.attached = NULL; - LINK_MESSAGE(receiver, mp); - - if (receiver->status == P_WAITING) { - erts_add_to_runq(receiver); - } else if (receiver->status == P_SUSPENDED) { - receiver->rstatus = P_RUNABLE; - } - if (IS_TRACED_FL(receiver, F_TRACE_RECEIVE)) { - trace_receive(receiver, message); - } + ); BM_SWAP_TIMER(send,system); -#endif /* #ifndef ERTS_SMP */ - return; } + return res; } /* @@ -1131,7 +1103,7 @@ erts_deliver_exit_message(Eterm from, Process *to, ErtsProcLocks *to_locksp, save = TUPLE3(hp, am_EXIT, from_copy, mess); hp += 4; /* the trace token must in this case be updated by the caller */ - seq_trace_output(token, save, SEQ_TRACE_SEND, to->id, NULL); + seq_trace_output(token, save, SEQ_TRACE_SEND, to->common.id, NULL); temptoken = copy_struct(token, sz_token, &hp, &bp->off_heap); erts_queue_message(to, to_locksp, bp, save, temptoken #ifdef USE_VM_PROBES diff --git a/erts/emulator/beam/erl_message.h b/erts/emulator/beam/erl_message.h index 3e9a24ee81..0f3bb8d281 100644 --- a/erts/emulator/beam/erl_message.h +++ b/erts/emulator/beam/erl_message.h @@ -46,6 +46,11 @@ typedef struct erl_off_heap { Uint64 overhead; /* Administrative overhead (used to force GC). */ } ErlOffHeap; +#define ERTS_INIT_OFF_HEAP(OHP) \ + do { \ + (OHP)->first = NULL; \ + (OHP)->overhead = 0; \ + } while (0) #include "external.h" #include "erl_process.h" @@ -90,7 +95,7 @@ typedef struct { ErlMessage* first; ErlMessage** last; /* point to the last next pointer */ ErlMessage** save; - int len; /* queue length */ + Sint len; /* queue length */ /* * The following two fields are used by the recv_mark/1 and @@ -105,7 +110,7 @@ typedef struct { typedef struct { ErlMessage* first; ErlMessage** last; /* point to the last next pointer */ - int len; /* queue length */ + Sint len; /* queue length */ } ErlMessageInQueue; #endif @@ -125,16 +130,16 @@ typedef struct { #ifdef ERTS_SMP /* Move in message queue to end of private message queue */ -#define ERTS_SMP_MSGQ_MV_INQ2PRIVQ(P) \ -do { \ - if ((P)->msg_inq.first) { \ - *(P)->msg.last = (P)->msg_inq.first; \ - (P)->msg.last = (P)->msg_inq.last; \ - (P)->msg.len += (P)->msg_inq.len; \ - (P)->msg_inq.first = NULL; \ - (P)->msg_inq.last = &(P)->msg_inq.first; \ - (P)->msg_inq.len = 0; \ - } \ +#define ERTS_SMP_MSGQ_MV_INQ2PRIVQ(P) \ +do { \ + if ((P)->msg_inq.first) { \ + *(P)->msg.last = (P)->msg_inq.first; \ + (P)->msg.last = (P)->msg_inq.last; \ + (P)->msg.len += (P)->msg_inq.len; \ + (P)->msg_inq.first = NULL; \ + (P)->msg_inq.last = &(P)->msg_inq.first; \ + (P)->msg_inq.len = 0; \ + } \ } while (0) /* Add message last in message queue */ @@ -234,7 +239,7 @@ void erts_queue_message(Process*, ErtsProcLocks*, ErlHeapFragment*, Eterm, Eterm #endif ); void erts_deliver_exit_message(Eterm, Process*, ErtsProcLocks *, Eterm, Eterm); -void erts_send_message(Process*, Process*, ErtsProcLocks*, Eterm, unsigned); +Sint erts_send_message(Process*, Process*, ErtsProcLocks*, Eterm, unsigned); void erts_link_mbuf_to_proc(Process *proc, ErlHeapFragment *bp); void erts_move_msg_mbuf_to_heap(Eterm**, ErlOffHeap*, ErlMessage *); @@ -245,6 +250,9 @@ void erts_move_msg_attached_data_to_heap(Eterm **, ErlOffHeap *, ErlMessage *); Eterm erts_msg_distext2heap(Process *, ErtsProcLocks *, ErlHeapFragment **, Eterm *, ErtsDistExternal *); +void erts_cleanup_offheap(ErlOffHeap *offheap); + + ERTS_GLB_INLINE Uint erts_msg_used_frag_sz(const ErlMessage *msg); ERTS_GLB_INLINE Uint erts_msg_attached_data_size(ErlMessage *msg); diff --git a/erts/emulator/beam/erl_monitors.c b/erts/emulator/beam/erl_monitors.c index 1a84950120..244a2b26db 100644 --- a/erts/emulator/beam/erl_monitors.c +++ b/erts/emulator/beam/erl_monitors.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 2004-2011. All Rights Reserved. + * Copyright Ericsson AB 2004-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -971,7 +971,7 @@ Eterm erts_debug_dump_monitors_1(BIF_ALIST_1) } } else { erts_printf("Dumping pid monitors--------------------\n"); - erts_dump_monitors(rp->monitors,0); + erts_dump_monitors(ERTS_P_MONITORS(rp),0); erts_printf("Monitors dumped-------------------------\n"); erts_smp_proc_unlock(rp, ERTS_PROC_LOCK_LINK); BIF_RET(am_true); @@ -985,12 +985,15 @@ Eterm erts_debug_dump_links_1(BIF_ALIST_1) Process *rp; DistEntry *dep; if (is_internal_port(pid)) { - Port *rport = erts_id2port(pid, p, ERTS_PROC_LOCK_MAIN); + Port *rport = erts_id2port_sflgs(pid, + p, + ERTS_PROC_LOCK_MAIN, + ERTS_PORT_SFLGS_INVALID_LOOKUP); if (rport) { erts_printf("Dumping port links----------------------\n"); - erts_dump_links(rport->nlinks,0); + erts_dump_links(ERTS_P_LINKS(rport), 0); erts_printf("Links dumped----------------------------\n"); - erts_smp_port_unlock(rport); + erts_port_release(rport); BIF_RET(am_true); } else { BIF_ERROR(p,BADARG); @@ -1014,10 +1017,30 @@ Eterm erts_debug_dump_links_1(BIF_ALIST_1) } else { erts_printf("Dumping pid links-----------------------\n"); - erts_dump_links(rp->nlinks,0); + erts_dump_links(ERTS_P_LINKS(rp), 0); erts_printf("Links dumped----------------------------\n"); erts_smp_proc_unlock(rp, ERTS_PROC_LOCK_LINK); BIF_RET(am_true); } } } + +void erts_one_link_size(ErtsLink *lnk, void *vpu) +{ + Uint *pu = vpu; + *pu += ERTS_LINK_SIZE*sizeof(Uint); + if(!IS_CONST(lnk->pid)) + *pu += NC_HEAP_SIZE(lnk->pid)*sizeof(Uint); + if (lnk->type != LINK_NODE && ERTS_LINK_ROOT(lnk) != NULL) { + erts_doforall_links(ERTS_LINK_ROOT(lnk),&erts_one_link_size,vpu); + } +} +void erts_one_mon_size(ErtsMonitor *mon, void *vpu) +{ + Uint *pu = vpu; + *pu += ERTS_MONITOR_SIZE*sizeof(Uint); + if(!IS_CONST(mon->pid)) + *pu += NC_HEAP_SIZE(mon->pid)*sizeof(Uint); + if(!IS_CONST(mon->ref)) + *pu += NC_HEAP_SIZE(mon->ref)*sizeof(Uint); +} diff --git a/erts/emulator/beam/erl_monitors.h b/erts/emulator/beam/erl_monitors.h index d3f6d410dd..fb11dbbd22 100644 --- a/erts/emulator/beam/erl_monitors.h +++ b/erts/emulator/beam/erl_monitors.h @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 2004-2009. All Rights Reserved. + * Copyright Ericsson AB 2004-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -137,8 +137,6 @@ typedef struct erts_suspend_monitor { #define ERTS_LINK_ROOT(Linkp) ((Linkp)->shared.root) #define ERTS_LINK_REFC(Linkp) ((Linkp)->shared.refc) -#define ERTS_LINK_ROOT_AS_UINT(Linkp) (*((Uint *) &((Linkp)->root))) - Uint erts_tot_link_lh_size(void); @@ -172,6 +170,8 @@ ErtsSuspendMonitor *erts_lookup_suspend_monitor(ErtsSuspendMonitor *root, Eterm pid); void erts_delete_suspend_monitor(ErtsSuspendMonitor **root, Eterm pid); void erts_init_monitors(void); +void erts_one_link_size(ErtsLink *lnk, void *vpu); +void erts_one_mon_size(ErtsMonitor *mon, void *vpu); #define erts_doforall_monitors erts_sweep_monitors #define erts_doforall_links erts_sweep_links diff --git a/erts/emulator/beam/erl_mtrace.c b/erts/emulator/beam/erl_mtrace.c index 358c67bf20..c8bb126687 100644 --- a/erts/emulator/beam/erl_mtrace.c +++ b/erts/emulator/beam/erl_mtrace.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 2003-2011. All Rights Reserved. + * Copyright Ericsson AB 2003-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -222,6 +222,8 @@ static byte *tracep; static byte *endp; static SysTimeval last_tv; +static ErtsAllocatorWrapper_t mtrace_wrapper; + #if ERTS_MTRACE_SEGMENT_ID >= ERTS_ALC_A_MIN || ERTS_MTRACE_SEGMENT_ID < 0 #error ERTS_MTRACE_SEGMENT_ID >= ERTS_ALC_A_MIN || ERTS_MTRACE_SEGMENT_ID < 0 #endif @@ -555,6 +557,8 @@ write_trace_header(char *nodename, char *pid, char *hostname) return 1; } +static void mtrace_pre_lock(void); +static void mtrace_pre_unlock(void); static void *mtrace_alloc(ErtsAlcType_t, void *, Uint); static void *mtrace_realloc(ErtsAlcType_t, void *, void *, Uint); static void mtrace_free(ErtsAlcType_t, void *, void *); @@ -611,7 +615,7 @@ void erts_mtrace_init(char *receiver, char *nodename) if (erts_sock_gethostname(hostname, MAXHOSTNAMELEN) != 0) hostname[0] = '\0'; hostname[MAXHOSTNAMELEN-1] = '\0'; - sys_get_pid(pid); + sys_get_pid(pid, sizeof(pid)); write_trace_header(nodename ? nodename : "", pid, hostname); erts_mtrace_update_heap_size(); } @@ -635,12 +639,16 @@ erts_mtrace_install_wrapper_functions(void) erts_allctrs[i].free = mtrace_free; erts_allctrs[i].extra = (void *) &real_allctrs[i]; } + mtrace_wrapper.lock = mtrace_pre_lock; + mtrace_wrapper.unlock = mtrace_pre_unlock; + erts_allctr_wrapper_prelock_init(&mtrace_wrapper); } } void erts_mtrace_stop(void) { + ASSERT(!erts_is_allctr_wrapper_prelocked()); erts_mtx_lock(&mtrace_op_mutex); erts_mtx_lock(&mtrace_buf_mutex); if (erts_mtrace_enabled) { @@ -677,6 +685,7 @@ erts_mtrace_stop(void) void erts_mtrace_exit(Uint32 exit_value) { + ASSERT(!erts_is_allctr_wrapper_prelocked()); erts_mtx_lock(&mtrace_op_mutex); erts_mtx_lock(&mtrace_buf_mutex); if (erts_mtrace_enabled) { @@ -935,18 +944,33 @@ write_free_entry(byte tag, erts_mtx_unlock(&mtrace_buf_mutex); } +static void mtrace_pre_lock(void) +{ + erts_mtx_lock(&mtrace_op_mutex); +} + +static void mtrace_pre_unlock(void) +{ + erts_mtx_unlock(&mtrace_op_mutex); +} + + static void * mtrace_alloc(ErtsAlcType_t n, void *extra, Uint size) { ErtsAllocatorFunctions_t *real_af = (ErtsAllocatorFunctions_t *) extra; void *res; - erts_mtx_lock(&mtrace_op_mutex); + if (!erts_is_allctr_wrapper_prelocked()) { + erts_mtx_lock(&mtrace_op_mutex); + } res = (*real_af->alloc)(n, real_af->extra, size); write_alloc_entry(ERTS_MT_ALLOC_BDY_TAG, res, n, 0, size); - erts_mtx_unlock(&mtrace_op_mutex); + if (!erts_is_allctr_wrapper_prelocked()) { + erts_mtx_unlock(&mtrace_op_mutex); + } return res; } @@ -957,12 +981,16 @@ mtrace_realloc(ErtsAlcType_t n, void *extra, void *ptr, Uint size) ErtsAllocatorFunctions_t *real_af = (ErtsAllocatorFunctions_t *) extra; void *res; - erts_mtx_lock(&mtrace_op_mutex); + if (!erts_is_allctr_wrapper_prelocked()) { + erts_mtx_lock(&mtrace_op_mutex); + } res = (*real_af->realloc)(n, real_af->extra, ptr, size); write_realloc_entry(ERTS_MT_REALLOC_BDY_TAG, res, n, 0, ptr, size); - erts_mtx_unlock(&mtrace_op_mutex); + if (!erts_is_allctr_wrapper_prelocked()) { + erts_mtx_unlock(&mtrace_op_mutex); + } return res; @@ -973,10 +1001,14 @@ mtrace_free(ErtsAlcType_t n, void *extra, void *ptr) { ErtsAllocatorFunctions_t *real_af = (ErtsAllocatorFunctions_t *) extra; - erts_mtx_lock(&mtrace_op_mutex); + if (!erts_is_allctr_wrapper_prelocked()) { + erts_mtx_lock(&mtrace_op_mutex); + } (*real_af->free)(n, real_af->extra, ptr); - write_free_entry(ERTS_MT_FREE_BDY_TAG, n, 0, ptr); + if (!erts_is_allctr_wrapper_prelocked()) { + write_free_entry(ERTS_MT_FREE_BDY_TAG, n, 0, ptr); + } erts_mtx_unlock(&mtrace_op_mutex); } diff --git a/erts/emulator/beam/erl_nif.c b/erts/emulator/beam/erl_nif.c index 4109c20fa7..ff551ea3af 100644 --- a/erts/emulator/beam/erl_nif.c +++ b/erts/emulator/beam/erl_nif.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 2009-2012. All Rights Reserved. + * Copyright Ericsson AB 2009-2014. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -31,9 +31,11 @@ #include "bif.h" #include "error.h" #include "big.h" +#include "erl_map.h" #include "beam_bp.h" #include "erl_thr_progress.h" #include "dtrace-wrapper.h" +#include "erl_process.h" #if defined(USE_DYNAMIC_TRACE) && (defined(USE_DTRACE) || defined(USE_SYSTEMTAP)) #define HAVE_USE_DTRACE 1 #endif @@ -263,7 +265,7 @@ ErlNifEnv* enif_alloc_env(void) HEAP_LIMIT(&msg_env->phony_proc) = phony_heap; HEAP_END(&msg_env->phony_proc) = phony_heap; MBUF(&msg_env->phony_proc) = NULL; - msg_env->phony_proc.id = ERTS_INVALID_PID; + msg_env->phony_proc.common.id = ERTS_INVALID_PID; #ifdef FORCE_HEAP_FRAGS msg_env->phony_proc.space_verified = 0; msg_env->phony_proc.space_verified_from = NULL; @@ -287,7 +289,7 @@ void enif_clear_env(ErlNifEnv* env) struct enif_msg_environment_t* menv = (struct enif_msg_environment_t*)env; Process* p = &menv->phony_proc; ASSERT(p == menv->env.proc); - ASSERT(p->id == ERTS_INVALID_PID); + ASSERT(p->common.id == ERTS_INVALID_PID); ASSERT(MBUF(p) == menv->env.heap_frag); if (MBUF(p) != NULL) { erts_cleanup_offheap(&MSO(p)); @@ -310,15 +312,13 @@ int enif_send(ErlNifEnv* env, const ErlNifPid* to_pid, Process* rp; Process* c_p; ErlHeapFragment* frags; -#if defined(ERTS_ENABLE_LOCK_CHECK) && defined(ERTS_SMP) - ErtsProcLocks rp_had_locks; -#endif Eterm receiver = to_pid->pid; int flush_me = 0; + int scheduler = erts_get_scheduler_id() != 0; if (env != NULL) { c_p = env->proc; - if (receiver == c_p->id) { + if (receiver == c_p->common.id) { rp_locks = ERTS_PROC_LOCK_MAIN; flush_me = 1; } @@ -331,13 +331,12 @@ int enif_send(ErlNifEnv* env, const ErlNifPid* to_pid, #endif } -#if defined(ERTS_ENABLE_LOCK_CHECK) && defined(ERTS_SMP) - rp_had_locks = rp_locks; -#endif - rp = erts_pid2proc_opt(c_p, ERTS_PROC_LOCK_MAIN, - receiver, rp_locks, ERTS_P2P_FLG_SMP_INC_REFC); + rp = (scheduler + ? erts_proc_lookup(receiver) + : erts_pid2proc_opt(c_p, ERTS_PROC_LOCK_MAIN, + receiver, rp_locks, ERTS_P2P_FLG_SMP_INC_REFC)); if (rp == NULL) { - ASSERT(env == NULL || receiver != c_p->id); + ASSERT(env == NULL || receiver != c_p->common.id); return 0; } flush_env(msg_env); @@ -362,12 +361,12 @@ int enif_send(ErlNifEnv* env, const ErlNifPid* to_pid, , NIL #endif ); - if (rp_locks) { - ERTS_SMP_LC_ASSERT(rp_locks == (rp_had_locks | (ERTS_PROC_LOCK_MSGQ | - ERTS_PROC_LOCK_STATUS))); - erts_smp_proc_unlock(rp, (ERTS_PROC_LOCK_MSGQ | ERTS_PROC_LOCK_STATUS)); - } - erts_smp_proc_dec_refc(rp); + if (c_p == rp) + rp_locks &= ~ERTS_PROC_LOCK_MAIN; + if (rp_locks) + erts_smp_proc_unlock(rp, rp_locks); + if (!scheduler) + erts_smp_proc_dec_refc(rp); if (flush_me) { cache_env(env); } @@ -393,7 +392,7 @@ static int is_offheap(const ErlOffHeap* oh) ErlNifPid* enif_self(ErlNifEnv* caller_env, ErlNifPid* pid) { - pid->pid = caller_env->proc->id; + pid->pid = caller_env->proc->common.id; return pid; } int enif_get_local_pid(ErlNifEnv* env, ERL_NIF_TERM term, ErlNifPid* pid) @@ -501,7 +500,7 @@ int enif_inspect_iolist_as_binary(ErlNifEnv* env, Eterm term, ErlNifBinary* bin) { struct enif_tmp_obj_t* tobj; ErtsAlcType_t allocator; - Uint sz; + ErlDrvSizeT sz; if (is_binary(term)) { return enif_inspect_binary(env,term,bin); } @@ -527,7 +526,7 @@ int enif_inspect_iolist_as_binary(ErlNifEnv* env, Eterm term, ErlNifBinary* bin) bin->size = sz; bin->bin_term = THE_NON_VALUE; bin->ref_bin = NULL; - io_list_to_buf(term, (char*) bin->data, sz); + erts_iolist_to_buf(term, (char*) bin->data, sz); ADD_READONLY_CHECK(env, bin->data, bin->size); return 1; } @@ -739,16 +738,23 @@ int enif_get_atom(ErlNifEnv* env, Eterm atom, char* buf, unsigned len, { Atom* ap; ASSERT(encoding == ERL_NIF_LATIN1); - if (is_not_atom(atom)) { + if (is_not_atom(atom) || len==0) { return 0; } ap = atom_tab(atom_val(atom)); - if (ap->len+1 > len) { + + if (ap->latin1_chars < 0 || ap->latin1_chars >= len) { return 0; } - sys_memcpy(buf, ap->name, ap->len); - buf[ap->len] = '\0'; - return ap->len + 1; + if (ap->latin1_chars == ap->len) { + sys_memcpy(buf, ap->name, ap->len); + } + else { + int dlen = erts_utf8_to_latin1((byte*)buf, ap->name, ap->len); + ASSERT(dlen == ap->latin1_chars); (void)dlen; + } + buf[ap->latin1_chars] = '\0'; + return ap->latin1_chars + 1; } int enif_get_int(ErlNifEnv* env, Eterm term, int* ip) @@ -850,7 +856,10 @@ int enif_get_atom_length(ErlNifEnv* env, Eterm atom, unsigned* len, ASSERT(enc == ERL_NIF_LATIN1); if (is_not_atom(atom)) return 0; ap = atom_tab(atom_val(atom)); - *len = ap->len; + if (ap->latin1_chars < 0) { + return 0; + } + *len = ap->latin1_chars; return 1; } @@ -867,7 +876,7 @@ int enif_get_list_cell(ErlNifEnv* env, Eterm term, Eterm* head, Eterm* tail) int enif_get_list_length(ErlNifEnv* env, Eterm term, unsigned* len) { if (is_not_list(term) && is_not_nil(term)) return 0; - *len = list_length(term); + *len = erts_list_length(term); return 1; } @@ -957,7 +966,7 @@ ERL_NIF_TERM enif_make_atom(ErlNifEnv* env, const char* name) ERL_NIF_TERM enif_make_atom_len(ErlNifEnv* env, const char* name, size_t len) { - return am_atom_put(name, len); + return erts_atom_put((byte*)name, len, ERTS_ATOM_ENC_LATIN1, 1); } int enif_make_existing_atom(ErlNifEnv* env, const char* name, ERL_NIF_TERM* atom, @@ -970,7 +979,7 @@ int enif_make_existing_atom_len(ErlNifEnv* env, const char* name, size_t len, ERL_NIF_TERM* atom, ErlNifCharEncoding encoding) { ASSERT(encoding == ERL_NIF_LATIN1); - return erts_atom_get(name, len, atom); + return erts_atom_get(name, len, atom, ERTS_ATOM_ENC_LATIN1); } ERL_NIF_TERM enif_make_tuple(ErlNifEnv* env, unsigned cnt, ...) @@ -1206,7 +1215,8 @@ static void close_lib(struct erl_module_nif* lib) lib->entry->unload(&env, lib->priv_data); post_nif_noproc(&env); } - erts_sys_ddll_close(lib->handle); + if (!erts_is_static_nif(lib->handle)) + erts_sys_ddll_close(lib->handle); lib->handle = NULL; } @@ -1227,6 +1237,19 @@ static void steal_resource_type(ErlNifResourceType* type) } } +/* The opened_rt_list is used by enif_open_resource_type() + * in order to rollback "creates" and "take-overs" in case the load fails. + */ +struct opened_resource_type +{ + struct opened_resource_type* next; + + ErlNifResourceFlags op; + ErlNifResourceType* type; + ErlNifResourceDtor* new_dtor; +}; +static struct opened_resource_type* opened_rt_list = NULL; + ErlNifResourceType* enif_open_resource_type(ErlNifEnv* env, const char* module_str, @@ -1248,22 +1271,21 @@ enif_open_resource_type(ErlNifEnv* env, if (type == NULL) { if (flags & ERL_NIF_RT_CREATE) { type = erts_alloc(ERTS_ALC_T_NIF, - sizeof(struct enif_resource_type_t)); - type->dtor = dtor; + sizeof(struct enif_resource_type_t)); type->module = module_am; type->name = name_am; erts_refc_init(&type->refc, 1); - type->owner = env->mod_nif; - type->prev = &resource_type_list; - type->next = resource_type_list.next; - type->next->prev = type; - type->prev->next = type; op = ERL_NIF_RT_CREATE; + #ifdef DEBUG + type->dtor = (void*)1; + type->owner = (void*)2; + type->prev = (void*)3; + type->next = (void*)4; + #endif } } else { - if (flags & ERL_NIF_RT_TAKEOVER) { - steal_resource_type(type); + if (flags & ERL_NIF_RT_TAKEOVER) { op = ERL_NIF_RT_TAKEOVER; } else { @@ -1271,12 +1293,13 @@ enif_open_resource_type(ErlNifEnv* env, } } if (type != NULL) { - type->owner = env->mod_nif; - type->dtor = dtor; - if (type->dtor != NULL) { - erts_refc_inc(&type->owner->rt_dtor_cnt, 1); - } - erts_refc_inc(&type->owner->rt_cnt, 1); + struct opened_resource_type* ort = erts_alloc(ERTS_ALC_T_TMP, + sizeof(struct opened_resource_type)); + ort->op = op; + ort->type = type; + ort->new_dtor = dtor; + ort->next = opened_rt_list; + opened_rt_list = ort; } if (tried != NULL) { *tried = op; @@ -1284,6 +1307,51 @@ enif_open_resource_type(ErlNifEnv* env, return type; } +static void commit_opened_resource_types(struct erl_module_nif* lib) +{ + while (opened_rt_list) { + struct opened_resource_type* ort = opened_rt_list; + + ErlNifResourceType* type = ort->type; + + if (ort->op == ERL_NIF_RT_CREATE) { + type->prev = &resource_type_list; + type->next = resource_type_list.next; + type->next->prev = type; + type->prev->next = type; + } + else { /* ERL_NIF_RT_TAKEOVER */ + steal_resource_type(type); + } + + type->owner = lib; + type->dtor = ort->new_dtor; + + if (type->dtor != NULL) { + erts_refc_inc(&lib->rt_dtor_cnt, 1); + } + erts_refc_inc(&lib->rt_cnt, 1); + + opened_rt_list = ort->next; + erts_free(ERTS_ALC_T_TMP, ort); + } +} + +static void rollback_opened_resource_types(void) +{ + while (opened_rt_list) { + struct opened_resource_type* ort = opened_rt_list; + + if (ort->op == ERL_NIF_RT_CREATE) { + erts_free(ERTS_ALC_T_NIF, ort->type); + } + + opened_rt_list = ort->next; + erts_free(ERTS_ALC_T_TMP, ort); + } +} + + static void nif_resource_dtor(Binary* bin) { ErlNifResource* resource = (ErlNifResource*) ERTS_MAGIC_BIN_DATA(bin); @@ -1309,6 +1377,8 @@ void* enif_alloc_resource(ErlNifResourceType* type, size_t size) { Binary* bin = erts_create_magic_binary(SIZEOF_ErlNifResource(size), &nif_resource_dtor); ErlNifResource* resource = ERTS_MAGIC_BIN_DATA(bin); + + ASSERT(type->owner && type->next && type->prev); /* not allowed in load/upgrade */ resource->type = type; erts_refc_inc(&bin->refc, 1); #ifdef DEBUG @@ -1392,6 +1462,414 @@ size_t enif_sizeof_resource(void* obj) return ERTS_MAGIC_BIN_DATA_SIZE(bin) - offsetof(ErlNifResource,data); } + +void* enif_dlopen(const char* lib, + void (*err_handler)(void*,const char*), void* err_arg) +{ + ErtsSysDdllError errdesc = ERTS_SYS_DDLL_ERROR_INIT; + void* handle; + void* init_func; + if (erts_sys_ddll_open(lib, &handle, &errdesc) == ERL_DE_NO_ERROR) { + if (erts_sys_ddll_load_nif_init(handle, &init_func, &errdesc) == ERL_DE_NO_ERROR) { + erts_sys_ddll_call_nif_init(init_func); + } + } + else { + if (err_handler != NULL) { + (*err_handler)(err_arg, errdesc.str); + } + handle = NULL; + } + erts_sys_ddll_free_error(&errdesc); + return handle; +} + +void* enif_dlsym(void* handle, const char* symbol, + void (*err_handler)(void*,const char*), void* err_arg) +{ + ErtsSysDdllError errdesc = ERTS_SYS_DDLL_ERROR_INIT; + void* ret; + if (erts_sys_ddll_sym2(handle, symbol, &ret, &errdesc) != ERL_DE_NO_ERROR) { + if (err_handler != NULL) { + (*err_handler)(err_arg, errdesc.str); + } + erts_sys_ddll_free_error(&errdesc); + return NULL; + } + return ret; +} + +int enif_consume_timeslice(ErlNifEnv* env, int percent) +{ + Sint reds; + + ASSERT(is_proc_bound(env) && percent >= 1 && percent <= 100); + if (percent < 1) percent = 1; + else if (percent > 100) percent = 100; + + reds = ((CONTEXT_REDS+99) / 100) * percent; + ASSERT(reds > 0 && reds <= CONTEXT_REDS); + BUMP_REDS(env->proc, reds); + return ERTS_BIF_REDS_LEFT(env->proc) == 0; +} + +#ifdef ERTS_DIRTY_SCHEDULERS + +/* NIFs exports need one more item than the Export struct provides, the + * erl_module_nif*, so the DirtyNifExport below adds that. The Export + * member must be first in the struct. + */ +typedef struct { + Export exp; + struct erl_module_nif* m; +} DirtyNifExport; + +static void +alloc_proc_psd(Process* proc, DirtyNifExport **ep) +{ + int i; + if (!*ep) { + *ep = erts_alloc(ERTS_ALC_T_PSD, sizeof(DirtyNifExport)); + sys_memset((void*) *ep, 0, sizeof(DirtyNifExport)); + for (i=0; i<ERTS_NUM_CODE_IX; i++) { + (*ep)->exp.addressv[i] = &(*ep)->exp.code[3]; + } + (*ep)->exp.code[3] = (BeamInstr) em_call_nif; + } + (void) ERTS_PROC_SET_DIRTY_SCHED_TRAP_EXPORT(proc, ERTS_PROC_LOCK_MAIN, &(*ep)->exp); +} + +static ERL_NIF_TERM +execute_dirty_nif_finalizer(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{ + Eterm* reg = ERTS_PROC_GET_SCHDATA(env->proc)->x_reg_array; + ERL_NIF_TERM result, dirty_result = (ERL_NIF_TERM) reg[0]; + typedef ERL_NIF_TERM (*FinalizerFP)(ErlNifEnv*, ERL_NIF_TERM); + FinalizerFP fp; +#if HAVE_INT64 && SIZEOF_LONG != 8 + ASSERT(sizeof(fp) <= sizeof(ErlNifUInt64)); + enif_get_uint64(env, reg[1], (ErlNifUInt64 *) &fp); +#else + ASSERT(sizeof(fp) <= sizeof(unsigned long)); + enif_get_ulong(env, reg[1], (unsigned long *) &fp); +#endif + result = (*fp)(env, dirty_result); + if (erts_refc_dectest(&env->mod_nif->rt_dtor_cnt, 0) == 0 + && env->mod_nif->mod == NULL) + close_lib(env->mod_nif); + return result; +} + +#endif /* ERTS_DIRTY_SCHEDULERS */ + +#ifdef ERL_NIF_DIRTY_SCHEDULER_SUPPORT + +ERL_NIF_TERM +enif_schedule_dirty_nif(ErlNifEnv* env, int flags, + ERL_NIF_TERM (*fp)(ErlNifEnv*, int, const ERL_NIF_TERM[]), + int argc, const ERL_NIF_TERM argv[]) +{ +#ifdef USE_THREADS + erts_aint32_t state, n, a; + Process* proc = env->proc; + Eterm* reg = ERTS_PROC_GET_SCHDATA(proc)->x_reg_array; + DirtyNifExport* ep = NULL; + int i; + + int chkflgs = (flags & (ERL_NIF_DIRTY_JOB_IO_BOUND|ERL_NIF_DIRTY_JOB_CPU_BOUND)); + if (chkflgs != ERL_NIF_DIRTY_JOB_IO_BOUND && chkflgs != ERL_NIF_DIRTY_JOB_CPU_BOUND) + return enif_make_badarg(env); + + a = erts_smp_atomic32_read_acqb(&proc->state); + while (1) { + n = state = a; + /* + * clear any current dirty flags and dirty queue indicators, + * in case the application is shifting a job from one type + * of dirty scheduler to the other + */ + n &= ~(ERTS_PSFLG_DIRTY_CPU_PROC|ERTS_PSFLG_DIRTY_IO_PROC + |ERTS_PSFLG_DIRTY_CPU_PROC_IN_Q|ERTS_PSFLG_DIRTY_IO_PROC_IN_Q); + if (chkflgs == ERL_NIF_DIRTY_JOB_CPU_BOUND) + n |= ERTS_PSFLG_DIRTY_CPU_PROC; + else + n |= ERTS_PSFLG_DIRTY_IO_PROC; + a = erts_smp_atomic32_cmpxchg_mb(&proc->state, n, state); + if (a == state) + break; + } + if (!(ep = (DirtyNifExport*) ERTS_PROC_GET_DIRTY_SCHED_TRAP_EXPORT(proc))) + alloc_proc_psd(proc, &ep); + ERTS_VBUMP_ALL_REDS(proc); + ep->exp.code[2] = argc; + for (i = 0; i < argc; i++) { + reg[i] = (Eterm) argv[i]; + } + proc->i = (BeamInstr*) ep->exp.addressv[0]; + ep->exp.code[4] = (BeamInstr) fp; + ep->m = env->mod_nif; + proc->freason = TRAP; + + erts_refc_inc(&env->mod_nif->rt_dtor_cnt, 1); + + return THE_NON_VALUE; +#else + return (*fp)(env, argc, argv); +#endif +} + +ERL_NIF_TERM +enif_schedule_dirty_nif_finalizer(ErlNifEnv* env, ERL_NIF_TERM result, + ERL_NIF_TERM (*fp)(ErlNifEnv*, ERL_NIF_TERM)) +{ +#ifdef USE_THREADS + Process* proc = env->proc; + Eterm* reg = ERTS_PROC_GET_SCHDATA(proc)->x_reg_array; + DirtyNifExport* ep; + + erts_smp_atomic32_read_band_mb(&proc->state, + ~(ERTS_PSFLG_DIRTY_CPU_PROC + |ERTS_PSFLG_DIRTY_IO_PROC + |ERTS_PSFLG_DIRTY_CPU_PROC_IN_Q + |ERTS_PSFLG_DIRTY_IO_PROC_IN_Q)); + if (!(ep = (DirtyNifExport*) ERTS_PROC_GET_DIRTY_SCHED_TRAP_EXPORT(proc))) + alloc_proc_psd(proc, &ep); + ERTS_VBUMP_ALL_REDS(proc); + ep->exp.code[2] = 2; + reg[0] = (Eterm) result; +#if HAVE_INT64 && SIZEOF_LONG != 8 + ASSERT(sizeof(fp) <= sizeof(ErlNifUInt64)); + reg[1] = (Eterm) enif_make_uint64(env, (ErlNifUInt64) fp); +#else + ASSERT(sizeof(fp) <= sizeof(unsigned long)); + reg[1] = (Eterm) enif_make_ulong(env, (unsigned long) fp); +#endif + proc->i = (BeamInstr*) ep->exp.addressv[0]; + ep->exp.code[4] = (BeamInstr) execute_dirty_nif_finalizer; + proc->freason = TRAP; + + return THE_NON_VALUE; +#else + return (*fp)(env, result); +#endif +} + +/* A simple finalizer that just returns its result argument */ +ERL_NIF_TERM +enif_dirty_nif_finalizer(ErlNifEnv* env, ERL_NIF_TERM result) +{ + return result; +} + +int +enif_is_on_dirty_scheduler(ErlNifEnv* env) +{ + return ERTS_SCHEDULER_IS_DIRTY(env->proc->scheduler_data); +} + +int +enif_have_dirty_schedulers() +{ +#ifdef USE_THREADS + return 1; +#else + return 0; +#endif +} + +#endif /* ERL_NIF_DIRTY_SCHEDULER_SUPPORT */ + +/* Maps */ + +int enif_is_map(ErlNifEnv* env, ERL_NIF_TERM term) +{ + return is_map(term); +} + +int enif_get_map_size(ErlNifEnv* env, ERL_NIF_TERM term, size_t *size) +{ + if (is_map(term)) { + map_t *mp; + mp = (map_t*)map_val(term); + *size = map_get_size(mp); + return 1; + } + return 0; +} + +ERL_NIF_TERM enif_make_new_map(ErlNifEnv* env) +{ + Eterm* hp = alloc_heap(env,MAP_HEADER_SIZE+1); + Eterm tup; + map_t *mp; + + tup = make_tuple(hp); + *hp++ = make_arityval(0); + mp = (map_t*)hp; + mp->thing_word = MAP_HEADER; + mp->size = 0; + mp->keys = tup; + + return make_map(mp); +} + +int enif_make_map_put(ErlNifEnv* env, + Eterm map_in, + Eterm key, + Eterm value, + Eterm *map_out) +{ + if (is_not_map(map_in)) { + return 0; + } + flush_env(env); + *map_out = erts_maps_put(env->proc, key, value, map_in); + cache_env(env); + return 1; +} + +int enif_get_map_value(ErlNifEnv* env, + Eterm map, + Eterm key, + Eterm *value) +{ + if (is_not_map(map)) { + return 0; + } + return erts_maps_get(key, map, value); +} + +int enif_make_map_update(ErlNifEnv* env, + Eterm map_in, + Eterm key, + Eterm value, + Eterm *map_out) +{ + int res; + if (is_not_map(map_in)) { + return 0; + } + + flush_env(env); + res = erts_maps_update(env->proc, key, value, map_in, map_out); + cache_env(env); + return res; +} + +int enif_make_map_remove(ErlNifEnv* env, + Eterm map_in, + Eterm key, + Eterm *map_out) +{ + int res; + if (is_not_map(map_in)) { + return 0; + } + flush_env(env); + res = erts_maps_remove(env->proc, key, map_in, map_out); + cache_env(env); + return res; +} + +int enif_map_iterator_create(ErlNifEnv *env, + Eterm map, + ErlNifMapIterator *iter, + ErlNifMapIteratorEntry entry) +{ + if (is_map(map)) { + map_t *mp = (map_t*)map_val(map); + size_t offset; + + switch (entry) { + case ERL_NIF_MAP_ITERATOR_HEAD: offset = 0; break; + case ERL_NIF_MAP_ITERATOR_TAIL: offset = map_get_size(mp) - 1; break; + default: goto error; + } + + /* empty maps are ok but will leave the iterator + * in bad shape. + */ + + iter->map = map; + iter->ks = ((Eterm *)map_get_keys(mp)) + offset; + iter->vs = ((Eterm *)map_get_values(mp)) + offset; + iter->t_limit = map_get_size(mp) + 1; + iter->idx = offset + 1; + + return 1; + } + +error: +#ifdef DEBUG + iter->map = THE_NON_VALUE; +#endif + return 0; +} + +void enif_map_iterator_destroy(ErlNifEnv *env, ErlNifMapIterator *iter) +{ + /* not used */ +#ifdef DEBUG + iter->map = THE_NON_VALUE; +#endif + +} + +int enif_map_iterator_is_tail(ErlNifEnv *env, ErlNifMapIterator *iter) +{ + ASSERT(iter && is_map(iter->map)); + ASSERT(iter->idx >= 0 && (iter->idx <= map_get_size(map_val(iter->map)) + 1)); + return (iter->t_limit == 1 || iter->idx == iter->t_limit); +} + +int enif_map_iterator_is_head(ErlNifEnv *env, ErlNifMapIterator *iter) +{ + ASSERT(iter && is_map(iter->map)); + ASSERT(iter->idx >= 0 && (iter->idx <= map_get_size(map_val(iter->map)) + 1)); + return (iter->t_limit == 1 || iter->idx == 0); +} + + +int enif_map_iterator_next(ErlNifEnv *env, ErlNifMapIterator *iter) +{ + ASSERT(iter && is_map(iter->map)); + if (iter->idx < iter->t_limit) { + iter->idx++; + iter->ks++; + iter->vs++; + } + return (iter->idx != iter->t_limit); +} + +int enif_map_iterator_prev(ErlNifEnv *env, ErlNifMapIterator *iter) +{ + ASSERT(iter && is_map(iter->map)); + if (iter->idx > 0) { + iter->idx--; + iter->ks--; + iter->vs--; + } + return (iter->idx > 0); +} + +int enif_map_iterator_get_pair(ErlNifEnv *env, + ErlNifMapIterator *iter, + Eterm *key, + Eterm *value) +{ + ASSERT(iter && is_map(iter->map)); + if (iter->idx > 0 && iter->idx < iter->t_limit) { + ASSERT(iter->ks >= map_get_keys(map_val(iter->map)) && + iter->ks < (map_get_keys(map_val(iter->map)) + map_get_size(map_val(iter->map)))); + ASSERT(iter->vs >= map_get_values(map_val(iter->map)) && + iter->vs < (map_get_values(map_val(iter->map)) + map_get_size(map_val(iter->map)))); + *key = *(iter->ks); + *value = *(iter->vs); + return 1; + } + return 0; +} + /*************************************************************************** ** load_nif/2 ** ***************************************************************************/ @@ -1506,12 +1984,13 @@ BIF_RETTYPE load_nif_2(BIF_ALIST_2) static const char upgrade[] = "upgrade"; char* lib_name = NULL; void* handle = NULL; - void* init_func; + void* init_func = NULL; ErlNifEntry* entry = NULL; ErlNifEnv env; - int len, i, err; + int i, err, encoding; Module* mod; Eterm mod_atom; + const Atom* mod_atomp; Eterm f_atom; BeamInstr* caller; ErtsSysDdllError errdesc = ERTS_SYS_DDLL_ERROR_INIT; @@ -1520,17 +1999,24 @@ BIF_RETTYPE load_nif_2(BIF_ALIST_2) struct erl_module_nif* lib = NULL; int reload_warning = 0; - len = list_length(BIF_ARG_1); - if (len < 0) { + encoding = erts_get_native_filename_encoding(); + if (encoding == ERL_FILENAME_WIN_WCHAR) { + /* Do not convert the lib name to utf-16le yet, do that in win32 specific code */ + /* since lib_name is used in error messages */ + encoding = ERL_FILENAME_UTF8; + } + lib_name = erts_convert_filename_to_encoding(BIF_ARG_1, NULL, 0, + ERTS_ALC_T_TMP, 1, 0, encoding, + NULL, 0); + if (!lib_name) { BIF_ERROR(BIF_P, BADARG); } - lib_name = (char *) erts_alloc(ERTS_ALC_T_TMP, len + 1); - if (intlist_to_buf(BIF_ARG_1, lib_name, len) != len) { + if (!erts_try_seize_code_write_permission(BIF_P)) { erts_free(ERTS_ALC_T_TMP, lib_name); - BIF_ERROR(BIF_P, BADARG); + ERTS_BIF_YIELD2(bif_export[BIF_load_nif_2], + BIF_P, BIF_ARG_1, BIF_ARG_2); } - lib_name[len] = '\0'; /* Block system (is this the right place to do it?) */ erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCK_MAIN); @@ -1545,16 +2031,22 @@ BIF_RETTYPE load_nif_2(BIF_ALIST_2) ASSERT(caller != NULL); mod_atom = caller[0]; ASSERT(is_atom(mod_atom)); - mod=erts_get_module(mod_atom); + mod=erts_get_module(mod_atom, erts_active_code_ix()); ASSERT(mod != NULL); - if (!in_area(caller, mod->code, mod->code_length)) { - ASSERT(in_area(caller, mod->old_code, mod->old_code_length)); + mod_atomp = atom_tab(atom_val(mod_atom)); + init_func = erts_static_nif_get_nif_init((char*)mod_atomp->name, mod_atomp->len); + if (init_func != NULL) + handle = init_func; + + if (!in_area(caller, mod->curr.code, mod->curr.code_length)) { + ASSERT(in_area(caller, mod->old.code, mod->old.code_length)); ret = load_nif_error(BIF_P, "old_code", "Calling load_nif from old " "module '%T' not allowed", mod_atom); } - else if ((err=erts_sys_ddll_open2(lib_name, &handle, &errdesc)) != ERL_DE_NO_ERROR) { + else if (init_func == NULL && + (err=erts_sys_ddll_open(lib_name, &handle, &errdesc)) != ERL_DE_NO_ERROR) { const char slogan[] = "Failed to load NIF library"; if (strstr(errdesc.str, lib_name) != NULL) { ret = load_nif_error(BIF_P, "load_failed", "%s: '%s'", slogan, errdesc.str); @@ -1563,7 +2055,8 @@ BIF_RETTYPE load_nif_2(BIF_ALIST_2) ret = load_nif_error(BIF_P, "load_failed", "%s %s: '%s'", slogan, lib_name, errdesc.str); } } - else if (erts_sys_ddll_load_nif_init(handle, &init_func, &errdesc) != ERL_DE_NO_ERROR) { + else if (init_func == NULL && + erts_sys_ddll_load_nif_init(handle, &init_func, &errdesc) != ERL_DE_NO_ERROR) { ret = load_nif_error(BIF_P, bad_lib, "Failed to find library init" " function: '%s'", errdesc.str); @@ -1572,8 +2065,11 @@ BIF_RETTYPE load_nif_2(BIF_ALIST_2) (entry = erts_sys_ddll_call_nif_init(init_func)) == NULL)) { ret = load_nif_error(BIF_P, bad_lib, "Library init-call unsuccessful"); } - else if (entry->major != ERL_NIF_MAJOR_VERSION - || entry->minor > ERL_NIF_MINOR_VERSION) { + else if (entry->major < ERL_NIF_MIN_REQUIRED_MAJOR_VERSION_ON_LOAD + || (ERL_NIF_MAJOR_VERSION < entry->major + || (ERL_NIF_MAJOR_VERSION == entry->major + && ERL_NIF_MINOR_VERSION < entry->minor)) + || (entry->major==2 && entry->minor == 5)) { /* experimental maps */ ret = load_nif_error(BIF_P, bad_lib, "Library version (%d.%d) not compatible (with %d.%d).", entry->major, entry->minor, ERL_NIF_MAJOR_VERSION, ERL_NIF_MINOR_VERSION); @@ -1584,7 +2080,7 @@ BIF_RETTYPE load_nif_2(BIF_ALIST_2) "this vm variant (%s).", entry->vm_variant, ERL_NIF_VM_VARIANT); } - else if (!erts_is_atom_str((char*)entry->name, mod_atom)) { + else if (!erts_is_atom_str((char*)entry->name, mod_atom, 1)) { ret = load_nif_error(BIF_P, bad_lib, "Library module name '%s' does not" " match calling module '%T'", entry->name, mod_atom); } @@ -1594,8 +2090,8 @@ BIF_RETTYPE load_nif_2(BIF_ALIST_2) for (i=0; i < entry->num_of_funcs && ret==am_ok; i++) { BeamInstr** code_pp; ErlNifFunc* f = &entry->funcs[i]; - if (!erts_atom_get(f->name, sys_strlen(f->name), &f_atom) - || (code_pp = get_func_pp(mod->code, f_atom, f->arity))==NULL) { + if (!erts_atom_get(f->name, sys_strlen(f->name), &f_atom, ERTS_ATOM_ENC_LATIN1) + || (code_pp = get_func_pp(mod->curr.code, f_atom, f->arity))==NULL) { ret = load_nif_error(BIF_P,bad_lib,"Function not found %T:%s/%u", mod_atom, f->name, f->arity); } @@ -1622,20 +2118,26 @@ BIF_RETTYPE load_nif_2(BIF_ALIST_2) lib->entry = entry; erts_refc_init(&lib->rt_cnt, 0); erts_refc_init(&lib->rt_dtor_cnt, 0); + ASSERT(opened_rt_list == NULL); lib->mod = mod; env.mod_nif = lib; - if (mod->nif != NULL) { /* Reload */ + if (mod->curr.nif != NULL) { /*************** Reload ******************/ + /* + * Repeated load_nif calls from same Erlang module instance ("reload") + * is deprecated and was only ment as a development feature not to + * be used in production systems. (See warning below) + */ int k; - lib->priv_data = mod->nif->priv_data; + lib->priv_data = mod->curr.nif->priv_data; - ASSERT(mod->nif->entry != NULL); + ASSERT(mod->curr.nif->entry != NULL); if (entry->reload == NULL) { ret = load_nif_error(BIF_P,reload,"Reload not supported by this NIF library."); goto error; } /* Check that no NIF is removed */ - for (k=0; k < mod->nif->entry->num_of_funcs; k++) { - ErlNifFunc* old_func = &mod->nif->entry->funcs[k]; + for (k=0; k < mod->curr.nif->entry->num_of_funcs; k++) { + ErlNifFunc* old_func = &mod->curr.nif->entry->funcs[k]; for (i=0; i < entry->num_of_funcs; i++) { if (old_func->arity == entry->funcs[i].arity && sys_strcmp(old_func->name, entry->funcs[i].name) == 0) { @@ -1656,57 +2158,60 @@ BIF_RETTYPE load_nif_2(BIF_ALIST_2) ret = load_nif_error(BIF_P, reload, "Library reload-call unsuccessful."); } else { - mod->nif->entry = NULL; /* to prevent 'unload' callback */ - erts_unload_nif(mod->nif); + commit_opened_resource_types(lib); + mod->curr.nif->entry = NULL; /* to prevent 'unload' callback */ + erts_unload_nif(mod->curr.nif); reload_warning = 1; } } else { lib->priv_data = NULL; - if (mod->old_nif != NULL) { /* Upgrade */ - void* prev_old_data = mod->old_nif->priv_data; + if (mod->old.nif != NULL) { /**************** Upgrade ***************/ + void* prev_old_data = mod->old.nif->priv_data; if (entry->upgrade == NULL) { ret = load_nif_error(BIF_P, upgrade, "Upgrade not supported by this NIF library."); goto error; } erts_pre_nif(&env, BIF_P, lib); - veto = entry->upgrade(&env, &lib->priv_data, &mod->old_nif->priv_data, BIF_ARG_2); + veto = entry->upgrade(&env, &lib->priv_data, &mod->old.nif->priv_data, BIF_ARG_2); erts_post_nif(&env); if (veto) { - mod->old_nif->priv_data = prev_old_data; + mod->old.nif->priv_data = prev_old_data; ret = load_nif_error(BIF_P, upgrade, "Library upgrade-call unsuccessful."); } - /*else if (mod->old_nif->priv_data != prev_old_data) { - refresh_cached_nif_data(mod->old_code, mod->old_nif); - }*/ + else + commit_opened_resource_types(lib); } - else if (entry->load != NULL) { /* Initial load */ + else if (entry->load != NULL) { /********* Initial load ***********/ erts_pre_nif(&env, BIF_P, lib); veto = entry->load(&env, &lib->priv_data, BIF_ARG_2); erts_post_nif(&env); if (veto) { ret = load_nif_error(BIF_P, "load", "Library load-call unsuccessful."); } + else + commit_opened_resource_types(lib); } } if (ret == am_ok) { /* ** Everything ok, patch the beam code with op_call_nif */ - mod->nif = lib; + mod->curr.nif = lib; for (i=0; i < entry->num_of_funcs; i++) { BeamInstr* code_ptr; - erts_atom_get(entry->funcs[i].name, sys_strlen(entry->funcs[i].name), &f_atom); - code_ptr = *get_func_pp(mod->code, f_atom, entry->funcs[i].arity); + erts_atom_get(entry->funcs[i].name, sys_strlen(entry->funcs[i].name), &f_atom, ERTS_ATOM_ENC_LATIN1); + code_ptr = *get_func_pp(mod->curr.code, f_atom, entry->funcs[i].arity); if (code_ptr[1] == 0) { code_ptr[5+0] = (BeamInstr) BeamOp(op_call_nif); } else { /* Function traced, patch the original instruction word */ - BpData** bps = (BpData**) code_ptr[1]; - BpData* bp = (BpData*) bps[erts_bp_sched2ix()]; - bp->orig_instr = (BeamInstr) BeamOp(op_call_nif); + GenericBp* g = (GenericBp *) code_ptr[1]; + ASSERT(code_ptr[5+0] == + (BeamInstr) BeamOp(op_i_generic_breakpoint)); + g->orig_instr = (BeamInstr) BeamOp(op_call_nif); } code_ptr[5+1] = (BeamInstr) entry->funcs[i].fptr; code_ptr[5+2] = (BeamInstr) lib; @@ -1714,11 +2219,12 @@ BIF_RETTYPE load_nif_2(BIF_ALIST_2) } else { error: + rollback_opened_resource_types(); ASSERT(ret != am_ok); if (lib != NULL) { erts_free(ERTS_ALC_T_NIF, lib); } - if (handle != NULL) { + if (handle != NULL && !erts_is_static_nif(handle)) { erts_sys_ddll_close(handle); } erts_sys_ddll_free_error(&errdesc); @@ -1726,6 +2232,7 @@ BIF_RETTYPE load_nif_2(BIF_ALIST_2) erts_smp_thr_progress_unblock(); erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCK_MAIN); + erts_release_code_write_permission(); erts_free(ERTS_ALC_T_TMP, lib_name); if (reload_warning) { @@ -1793,7 +2300,7 @@ void erl_nif_init() #ifdef USE_VM_PROBES void dtrace_nifenv_str(ErlNifEnv *env, char *process_buf) { - dtrace_pid_str(env->proc->id, process_buf); + dtrace_pid_str(env->proc->common.id, process_buf); } #endif diff --git a/erts/emulator/beam/erl_nif.h b/erts/emulator/beam/erl_nif.h index 50f99c90c4..5b93c2398e 100644 --- a/erts/emulator/beam/erl_nif.h +++ b/erts/emulator/beam/erl_nif.h @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 2009-2012. All Rights Reserved. + * Copyright Ericsson AB 2009-2014. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -23,7 +23,11 @@ #ifndef __ERL_NIF_H__ #define __ERL_NIF_H__ +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif +#include "erl_native_features_config.h" #include "erl_drv_nif.h" /* Version history: @@ -32,10 +36,27 @@ ** 2.0: R14A ** 2.1: R14B02 "vm_variant" ** 2.2: R14B03 enif_is_exception -** 2.3: R15 enif_make_reverse_list +** 2.3: R15 enif_make_reverse_list, enif_is_number +** 2.4: R16 enif_consume_timeslice +** 2.5: First experimental maps API additions (libs of this version is not compatible with any other VM) +** 2.5: R17 Maps API additions +** 2.6: R17 with maps +** R17 dirty schedulers */ #define ERL_NIF_MAJOR_VERSION 2 -#define ERL_NIF_MINOR_VERSION 3 +#define ERL_NIF_MINOR_VERSION 6 + +/* + * The emulator will refuse to load a nif-lib with a major version + * lower than ERL_NIF_MIN_REQUIRED_MAJOR_VERSION_ON_LOAD. The load + * may however fail if user have not removed use of deprecated + * symbols. + * + * The ERL_NIF_MIN_REQUIRED_MAJOR_VERSION_ON_LOAD have to allow + * loading of nif-libs built at least two major OTP releases + * ago. + */ +#define ERL_NIF_MIN_REQUIRED_MAJOR_VERSION_ON_LOAD 2 #include <stdlib.h> @@ -94,6 +115,8 @@ typedef unsigned long long ERL_NIF_TERM; # endif #endif +typedef ERL_NIF_TERM ERL_NIF_UINT; + struct enif_environment_t; typedef struct enif_environment_t ErlNifEnv; @@ -158,6 +181,29 @@ typedef int ErlNifTSDKey; typedef ErlDrvThreadOpts ErlNifThreadOpts; +#ifdef ERL_NIF_DIRTY_SCHEDULER_SUPPORT +typedef enum +{ + ERL_NIF_DIRTY_JOB_CPU_BOUND = ERL_DRV_DIRTY_JOB_CPU_BOUND, + ERL_NIF_DIRTY_JOB_IO_BOUND = ERL_DRV_DIRTY_JOB_IO_BOUND +}ErlNifDirtyTaskFlags; +#endif + +typedef struct /* All fields all internal and may change */ +{ + ERL_NIF_TERM map; + ERL_NIF_UINT t_limit; + ERL_NIF_UINT idx; + ERL_NIF_TERM *ks; + ERL_NIF_TERM *vs; + void* __spare__[2]; /* for future additions to be ABI compatible (same struct size) */ +} ErlNifMapIterator; + +typedef enum { + ERL_NIF_MAP_ITERATOR_HEAD = 1, + ERL_NIF_MAP_ITERATOR_TAIL = 2 +} ErlNifMapIteratorEntry; + #if (defined(__WIN32__) || defined(_WIN32) || defined(_WIN32_)) # define ERL_NIF_API_FUNC_DECL(RET_TYPE, NAME, ARGS) RET_TYPE (*NAME) ARGS typedef struct { @@ -167,7 +213,7 @@ extern TWinDynNifCallbacks WinDynNifCallbacks; # undef ERL_NIF_API_FUNC_DECL #endif -#if (defined(__WIN32__) || defined(_WIN32) || defined(_WIN32_)) && !defined(STATIC_ERLANG_DRIVER) +#if (defined(__WIN32__) || defined(_WIN32) || defined(_WIN32_)) && !defined(STATIC_ERLANG_DRIVER) && !defined(STATIC_ERLANG_NIF) # define ERL_NIF_API_FUNC_MACRO(NAME) (WinDynNifCallbacks.NAME) # include "erl_nif_api_funcs.h" /* note that we have to keep ERL_NIF_API_FUNC_MACRO defined */ @@ -179,18 +225,21 @@ extern TWinDynNifCallbacks WinDynNifCallbacks; # undef ERL_NIF_API_FUNC_DECL #endif - #if (defined(__WIN32__) || defined(_WIN32) || defined(_WIN32_)) # define ERL_NIF_INIT_GLOB TWinDynNifCallbacks WinDynNifCallbacks; -# define ERL_NIF_INIT_DECL(MODNAME) __declspec(dllexport) ErlNifEntry* nif_init(TWinDynNifCallbacks* callbacks) +# ifdef STATIC_ERLANG_NIF +# define ERL_NIF_INIT_DECL(MODNAME) __declspec(dllexport) ErlNifEntry* MODNAME ## _nif_init(TWinDynNifCallbacks* callbacks) +# else +# define ERL_NIF_INIT_DECL(MODNAME) __declspec(dllexport) ErlNifEntry* nif_init(TWinDynNifCallbacks* callbacks) +# endif # define ERL_NIF_INIT_BODY memcpy(&WinDynNifCallbacks,callbacks,sizeof(TWinDynNifCallbacks)) #else # define ERL_NIF_INIT_GLOB # define ERL_NIF_INIT_BODY -# if defined(VXWORKS) -# define ERL_NIF_INIT_DECL(MODNAME) ErlNifEntry* MODNAME ## _init(void) +# ifdef STATIC_ERLANG_NIF +# define ERL_NIF_INIT_DECL(MODNAME) ErlNifEntry* MODNAME ## _nif_init(void) # else -# define ERL_NIF_INIT_DECL(MODNAME) ErlNifEntry* nif_init(void) +# define ERL_NIF_INIT_DECL(MODNAME) ErlNifEntry* nif_init(void) # endif #endif diff --git a/erts/emulator/beam/erl_nif_api_funcs.h b/erts/emulator/beam/erl_nif_api_funcs.h index 6396af09d0..d7c554e60b 100644 --- a/erts/emulator/beam/erl_nif_api_funcs.h +++ b/erts/emulator/beam/erl_nif_api_funcs.h @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 2009-2011. All Rights Reserved. + * Copyright Ericsson AB 2009-2014. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -138,6 +138,32 @@ ERL_NIF_API_FUNC_DECL(ERL_NIF_TERM,enif_make_uint64,(ErlNifEnv*, ErlNifUInt64)); ERL_NIF_API_FUNC_DECL(int,enif_is_exception,(ErlNifEnv*, ERL_NIF_TERM term)); ERL_NIF_API_FUNC_DECL(int,enif_make_reverse_list,(ErlNifEnv*, ERL_NIF_TERM term, ERL_NIF_TERM *list)); ERL_NIF_API_FUNC_DECL(int,enif_is_number,(ErlNifEnv*, ERL_NIF_TERM term)); +ERL_NIF_API_FUNC_DECL(void*,enif_dlopen,(const char* lib, void (*err_handler)(void*,const char*), void* err_arg)); +ERL_NIF_API_FUNC_DECL(void*,enif_dlsym,(void* handle, const char* symbol, void (*err_handler)(void*,const char*), void* err_arg)); +ERL_NIF_API_FUNC_DECL(int,enif_consume_timeslice,(ErlNifEnv*, int percent)); +#ifdef ERL_NIF_DIRTY_SCHEDULER_SUPPORT +ERL_NIF_API_FUNC_DECL(ERL_NIF_TERM,enif_schedule_dirty_nif,(ErlNifEnv*,int,ERL_NIF_TERM (*)(ErlNifEnv*,int,const ERL_NIF_TERM[]),int,const ERL_NIF_TERM[])); +ERL_NIF_API_FUNC_DECL(ERL_NIF_TERM,enif_schedule_dirty_nif_finalizer,(ErlNifEnv*,ERL_NIF_TERM,ERL_NIF_TERM (*)(ErlNifEnv*,ERL_NIF_TERM))); +ERL_NIF_API_FUNC_DECL(ERL_NIF_TERM,enif_dirty_nif_finalizer,(ErlNifEnv*,ERL_NIF_TERM)); +ERL_NIF_API_FUNC_DECL(int,enif_is_on_dirty_scheduler,(ErlNifEnv*)); +ERL_NIF_API_FUNC_DECL(int,enif_have_dirty_schedulers,(void)); +#endif + +ERL_NIF_API_FUNC_DECL(int, enif_is_map, (ErlNifEnv* env, ERL_NIF_TERM term)); +ERL_NIF_API_FUNC_DECL(int, enif_get_map_size, (ErlNifEnv* env, ERL_NIF_TERM term, size_t *size)); +ERL_NIF_API_FUNC_DECL(ERL_NIF_TERM, enif_make_new_map, (ErlNifEnv* env)); +ERL_NIF_API_FUNC_DECL(int, enif_make_map_put, (ErlNifEnv* env, ERL_NIF_TERM map_in, ERL_NIF_TERM key, ERL_NIF_TERM value, ERL_NIF_TERM* map_out)); +ERL_NIF_API_FUNC_DECL(int, enif_get_map_value, (ErlNifEnv* env, ERL_NIF_TERM map, ERL_NIF_TERM key, ERL_NIF_TERM* value)); +ERL_NIF_API_FUNC_DECL(int, enif_make_map_update, (ErlNifEnv* env, ERL_NIF_TERM map_in, ERL_NIF_TERM key, ERL_NIF_TERM value, ERL_NIF_TERM* map_out)); +ERL_NIF_API_FUNC_DECL(int, enif_make_map_remove, (ErlNifEnv* env, ERL_NIF_TERM map_in, ERL_NIF_TERM key, ERL_NIF_TERM* map_out)); +ERL_NIF_API_FUNC_DECL(int, enif_map_iterator_create, (ErlNifEnv *env, ERL_NIF_TERM map, ErlNifMapIterator *iter, ErlNifMapIteratorEntry entry)); +ERL_NIF_API_FUNC_DECL(void, enif_map_iterator_destroy, (ErlNifEnv *env, ErlNifMapIterator *iter)); +ERL_NIF_API_FUNC_DECL(int, enif_map_iterator_is_head, (ErlNifEnv *env, ErlNifMapIterator *iter)); +ERL_NIF_API_FUNC_DECL(int, enif_map_iterator_is_tail, (ErlNifEnv *env, ErlNifMapIterator *iter)); +ERL_NIF_API_FUNC_DECL(int, enif_map_iterator_next, (ErlNifEnv *env, ErlNifMapIterator *iter)); +ERL_NIF_API_FUNC_DECL(int, enif_map_iterator_prev, (ErlNifEnv *env, ErlNifMapIterator *iter)); +ERL_NIF_API_FUNC_DECL(int, enif_map_iterator_get_pair, (ErlNifEnv *env, ErlNifMapIterator *iter, ERL_NIF_TERM *key, ERL_NIF_TERM *value)); + /* ** Add new entries here to keep compatibility on Windows!!! @@ -260,6 +286,31 @@ ERL_NIF_API_FUNC_DECL(int,enif_is_number,(ErlNifEnv*, ERL_NIF_TERM term)); # define enif_is_exception ERL_NIF_API_FUNC_MACRO(enif_is_exception) # define enif_make_reverse_list ERL_NIF_API_FUNC_MACRO(enif_make_reverse_list) # define enif_is_number ERL_NIF_API_FUNC_MACRO(enif_is_number) +# define enif_dlopen ERL_NIF_API_FUNC_MACRO(enif_dlopen) +# define enif_dlsym ERL_NIF_API_FUNC_MACRO(enif_dlsym) +# define enif_consume_timeslice ERL_NIF_API_FUNC_MACRO(enif_consume_timeslice) +#ifdef ERL_NIF_DIRTY_SCHEDULER_SUPPORT +# define enif_schedule_dirty_nif ERL_NIF_API_FUNC_MACRO(enif_schedule_dirty_nif) +# define enif_schedule_dirty_nif_finalizer ERL_NIF_API_FUNC_MACRO(enif_schedule_dirty_nif_finalizer) +# define enif_dirty_nif_finalizer ERL_NIF_API_FUNC_MACRO(enif_dirty_nif_finalizer) +# define enif_is_on_dirty_scheduler ERL_NIF_API_FUNC_MACRO(enif_is_on_dirty_scheduler) +# define enif_have_dirty_schedulers ERL_NIF_API_FUNC_MACRO(enif_have_dirty_schedulers) +#endif + +# define enif_is_map ERL_NIF_API_FUNC_MACRO(enif_is_map) +# define enif_get_map_size ERL_NIF_API_FUNC_MACRO(enif_get_map_size) +# define enif_make_new_map ERL_NIF_API_FUNC_MACRO(enif_make_new_map) +# define enif_make_map_put ERL_NIF_API_FUNC_MACRO(enif_make_map_put) +# define enif_get_map_value ERL_NIF_API_FUNC_MACRO(enif_get_map_value) +# define enif_make_map_update ERL_NIF_API_FUNC_MACRO(enif_make_map_update) +# define enif_make_map_remove ERL_NIF_API_FUNC_MACRO(enif_make_map_remove) +# define enif_map_iterator_create ERL_NIF_API_FUNC_MACRO(enif_map_iterator_create) +# define enif_map_iterator_destroy ERL_NIF_API_FUNC_MACRO(enif_map_iterator_destroy) +# define enif_map_iterator_is_head ERL_NIF_API_FUNC_MACRO(enif_map_iterator_is_head) +# define enif_map_iterator_is_tail ERL_NIF_API_FUNC_MACRO(enif_map_iterator_is_tail) +# define enif_map_iterator_next ERL_NIF_API_FUNC_MACRO(enif_map_iterator_next) +# define enif_map_iterator_prev ERL_NIF_API_FUNC_MACRO(enif_map_iterator_prev) +# define enif_map_iterator_get_pair ERL_NIF_API_FUNC_MACRO(enif_map_iterator_get_pair) /* ** Add new entries here diff --git a/erts/emulator/beam/erl_node_container_utils.h b/erts/emulator/beam/erl_node_container_utils.h index 329a2204cc..17f6b32bb1 100644 --- a/erts/emulator/beam/erl_node_container_utils.h +++ b/erts/emulator/beam/erl_node_container_utils.h @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 2001-2011. All Rights Reserved. + * Copyright Ericsson AB 2001-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -20,7 +20,7 @@ #ifndef ERL_NODE_CONTAINER_UTILS_H__ #define ERL_NODE_CONTAINER_UTILS_H__ -#include "erl_term.h" +#include "erl_ptab.h" /* * Note regarding node containers: @@ -29,9 +29,6 @@ * the emulator) for the Erlang data types that contain a reference * to a node, i.e. pids, ports, and references. * - * Observe! The layouts of the node container data types have been - * changed in R9. - * * Node containers are divided into internal and external node containers. * An internal node container refer to the current incarnation of the * node which it reside on. An external node container refer to @@ -52,13 +49,6 @@ * reference is a boxed data type. An internal node container have an * implicit reference to the 'erts_this_node' element in the node table. * - * Due to the R9 changes in layouts of node containers there are room to - * store more data than previously. Today (R9) this extra space is unused, - * but it is planned to be used in the future. For example only 18 bits - * are used for data in a pid but there is room for 28 bits of data (on a - * 32-bit machine). Some preparations have been made in the emulator for - * usage of this extra space. - * * OBSERVE! Pids doesn't use fixed size 'serial' and 'number' fields any * more. Previously the 15 bit 'number' field of a pid was used as index * into the process table, and the 3 bit 'serial' field was used as a @@ -104,8 +94,6 @@ #define internal_dist_entry(x) (erts_this_node->dist_entry) #define external_dist_entry(x) (external_node((x))->dist_entry) -extern int erts_use_r9_pids_ports; - /* * For this node (and previous incarnations of this node), 0 is used as * channel no. For other nodes, the atom index of the atom corresponding @@ -118,7 +106,7 @@ extern int erts_use_r9_pids_ports; #define dist_entry_channel_no(x) \ ((x) == erts_this_dist_entry \ ? ((Uint) 0) \ - : (ASSERT_EXPR(is_atom((x)->sysname)), \ + : (ASSERT(is_atom((x)->sysname)), \ (Uint) atom_val((x)->sysname))) #define internal_channel_no(x) ((Uint) ERST_INTERNAL_CHANNEL_NO) #define external_channel_no(x) \ @@ -128,8 +116,20 @@ extern int erts_use_r9_pids_ports; * Pids * \* */ -#define internal_pid_index(x) (internal_pid_data((x)) \ - & erts_process_tab_index_mask) +extern ErtsPTab erts_proc; + +#define make_internal_pid(D) erts_ptab_make_id(&erts_proc, \ + (D), \ + _TAG_IMMED1_PID) + +#define internal_pid_index(PID) (ASSERT(is_internal_pid((PID))), \ + erts_ptab_id2pix(&erts_proc, (PID))) + +#define internal_pid_data(PID) (ASSERT(is_internal_pid((PID))), \ + erts_ptab_id2data(&erts_proc, (PID))) + +#define internal_pid_number(x) _GET_PID_NUM(internal_pid_data((x))) +#define internal_pid_serial(x) _GET_PID_SER(internal_pid_data((x))) #define internal_pid_node_name(x) (internal_pid_node((x))->sysname) #define external_pid_node_name(x) (external_pid_node((x))->sysname) @@ -169,34 +169,37 @@ extern int erts_use_r9_pids_ports; || is_external_pid((x))) #define is_not_pid(x) (!is_pid(x)) -#define ERTS_MAX_R9_PROCESSES (1 << ERTS_R9_PROC_BITS) - /* * Maximum number of processes. We want the number to fit in a SMALL on * 32-bit CPU. */ -#define ERTS_MAX_PROCESSES ((SWORD_CONSTANT(1) << 27)-1) -#if (ERTS_MAX_PROCESSES > MAX_SMALL) -# error "The maximum number of processes must fit in a SMALL." -#endif - +#define ERTS_MAX_PROCESSES (ERTS_PTAB_MAX_SIZE-1) #define ERTS_MAX_PID_DATA ((1 << _PID_DATA_SIZE) - 1) #define ERTS_MAX_PID_NUMBER ((1 << _PID_NUM_SIZE) - 1) #define ERTS_MAX_PID_SERIAL ((1 << _PID_SER_SIZE) - 1) -#define ERTS_MAX_PID_R9_SERIAL ((1 << _PID_R9_SER_SIZE) - 1) -#define ERTS_R9_PROC_BITS (_PID_R9_SER_SIZE + _PID_NUM_SIZE) #define ERTS_PROC_BITS (_PID_SER_SIZE + _PID_NUM_SIZE) -#define ERTS_INVALID_PID make_internal_pid(ERTS_MAX_PID_DATA) +#define ERTS_INVALID_PID ERTS_PTAB_INVALID_ID(_TAG_IMMED1_PID) /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\ * Ports * \* */ -#define internal_port_index(x) (internal_port_data((x)) \ - & erts_port_tab_index_mask) +extern ErtsPTab erts_port; + +#define make_internal_port(D) erts_ptab_make_id(&erts_port, \ + (D), \ + _TAG_IMMED1_PORT) + +#define internal_port_index(PRT) (ASSERT(is_internal_port((PRT))), \ + erts_ptab_id2pix(&erts_port, (PRT))) + +#define internal_port_data(PRT) (ASSERT(is_internal_port((PRT))), \ + erts_ptab_id2data(&erts_port, (PRT))) + +#define internal_port_number(x) _GET_PORT_NUM(internal_port_data((x))) #define internal_port_node_name(x) (internal_port_node((x))->sysname) #define external_port_node_name(x) (external_port_node((x))->sysname) @@ -235,18 +238,18 @@ extern int erts_use_r9_pids_ports; #define is_not_port(x) (!is_port(x)) /* Highest port-ID part in a term of type Port - Not necessarily the same as the variable erts_max_ports + Not necessarily the same as current maximum port table size which defines the maximum number of simultaneous Ports in the Erlang node. ERTS_MAX_PORTS is a hard upper limit. */ -#define ERTS_MAX_R9_PORTS (1 << ERTS_R9_PORTS_BITS) -#define ERTS_MAX_PORTS (1 << ERTS_PORTS_BITS) - +#define ERTS_MAX_PORTS (ERTS_PTAB_MAX_SIZE-1) #define ERTS_MAX_PORT_DATA ((1 << _PORT_DATA_SIZE) - 1) #define ERTS_MAX_PORT_NUMBER ((1 << _PORT_NUM_SIZE) - 1) -#define ERTS_R9_PORTS_BITS (_PORT_R9_NUM_SIZE) #define ERTS_PORTS_BITS (_PORT_NUM_SIZE) + +#define ERTS_INVALID_PORT ERTS_PTAB_INVALID_ID(_TAG_IMMED1_PORT) + /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\ * Refs * \* */ diff --git a/erts/emulator/beam/erl_node_tables.c b/erts/emulator/beam/erl_node_tables.c index 5574cb0ac4..c6d136f951 100644 --- a/erts/emulator/beam/erl_node_tables.c +++ b/erts/emulator/beam/erl_node_tables.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 2001-2012. All Rights Reserved. + * Copyright Ericsson AB 2001-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -116,8 +116,7 @@ dist_table_alloc(void *dep_tmpl) dep->qsize = 0; dep->out_queue.first = NULL; dep->out_queue.last = NULL; - dep->suspended.first = NULL; - dep->suspended.last = NULL; + dep->suspended = NULL; dep->finalized_out_queue.first = NULL; dep->finalized_out_queue.last = NULL; @@ -769,8 +768,7 @@ void erts_init_node_tables(void) erts_this_dist_entry->qsize = 0; erts_this_dist_entry->out_queue.first = NULL; erts_this_dist_entry->out_queue.last = NULL; - erts_this_dist_entry->suspended.first = NULL; - erts_this_dist_entry->suspended.last = NULL; + erts_this_dist_entry->suspended = NULL; erts_this_dist_entry->finalized_out_queue.first = NULL; erts_this_dist_entry->finalized_out_queue.last = NULL; @@ -1268,7 +1266,7 @@ setup_reference_table(void) ErlHeapFragment *hfp; DistEntry *dep; HashInfo hi; - int i; + int i, max; DeclareTmpHeapNoproc(heap,3); inserted_bins = NULL; @@ -1297,22 +1295,24 @@ setup_reference_table(void) UnUseTmpHeapNoproc(3); + max = erts_ptab_max(&erts_proc); /* Insert all processes */ - for (i = 0; i < erts_max_processes; i++) - if (process_tab[i]) { + for (i = 0; i < max; i++) { + Process *proc = erts_pix2proc(i); + if (proc) { ErlMessage *msg; /* Insert Heap */ - insert_offheap(&(process_tab[i]->off_heap), + insert_offheap(&(proc->off_heap), HEAP_REF, - process_tab[i]->id); + proc->common.id); /* Insert message buffers */ - for(hfp = process_tab[i]->mbuf; hfp; hfp = hfp->next) + for(hfp = proc->mbuf; hfp; hfp = hfp->next) insert_offheap(&(hfp->off_heap), HEAP_REF, - process_tab[i]->id); + proc->common.id); /* Insert msg msg buffers */ - for (msg = process_tab[i]->msg.first; msg; msg = msg->next) { + for (msg = proc->msg.first; msg; msg = msg->next) { ErlHeapFragment *heap_frag = NULL; if (msg->data.attached) { if (is_value(ERL_MESSAGE_TERM(msg))) @@ -1320,7 +1320,7 @@ setup_reference_table(void) else { if (msg->data.dist_ext->dep) insert_dist_entry(msg->data.dist_ext->dep, - HEAP_REF, process_tab[i]->id, 0); + HEAP_REF, proc->common.id, 0); if (is_not_nil(ERL_MESSAGE_TOKEN(msg))) heap_frag = erts_dist_ext_trailer(msg->data.dist_ext); } @@ -1328,10 +1328,10 @@ setup_reference_table(void) if (heap_frag) insert_offheap(&(heap_frag->off_heap), HEAP_REF, - process_tab[i]->id); + proc->common.id); } #ifdef ERTS_SMP - for (msg = process_tab[i]->msg_inq.first; msg; msg = msg->next) { + for (msg = proc->msg_inq.first; msg; msg = msg->next) { ErlHeapFragment *heap_frag = NULL; if (msg->data.attached) { if (is_value(ERL_MESSAGE_TERM(msg))) @@ -1339,7 +1339,7 @@ setup_reference_table(void) else { if (msg->data.dist_ext->dep) insert_dist_entry(msg->data.dist_ext->dep, - HEAP_REF, process_tab[i]->id, 0); + HEAP_REF, proc->common.id, 0); if (is_not_nil(ERL_MESSAGE_TOKEN(msg))) heap_frag = erts_dist_ext_trailer(msg->data.dist_ext); } @@ -1347,42 +1347,57 @@ setup_reference_table(void) if (heap_frag) insert_offheap(&(heap_frag->off_heap), HEAP_REF, - process_tab[i]->id); + proc->common.id); } #endif /* Insert links */ - if(process_tab[i]->nlinks) - insert_links(process_tab[i]->nlinks, process_tab[i]->id); - if(process_tab[i]->monitors) - insert_monitors(process_tab[i]->monitors, process_tab[i]->id); + if (ERTS_P_LINKS(proc)) + insert_links(ERTS_P_LINKS(proc), proc->common.id); + if (ERTS_P_MONITORS(proc)) + insert_monitors(ERTS_P_MONITORS(proc), proc->common.id); /* Insert controller */ { - DistEntry *dep = ERTS_PROC_GET_DIST_ENTRY(process_tab[i]); + DistEntry *dep = ERTS_PROC_GET_DIST_ENTRY(proc); if (dep) - insert_dist_entry(dep, CTRL_REF, process_tab[i]->id, 0); + insert_dist_entry(dep, CTRL_REF, proc->common.id, 0); } } + } #ifdef ERTS_SMP erts_foreach_sys_msg_in_q(insert_sys_msg); #endif /* Insert all ports */ - for (i = 0; i < erts_max_ports; i++) { - if (erts_port[i].status & ERTS_PORT_SFLGS_DEAD) + max = erts_ptab_max(&erts_port); + for (i = 0; i < max; i++) { + ErlOffHeap *ohp; + erts_aint32_t state; + Port *prt; + + prt = erts_pix2port(i); + if (!prt) + continue; + + state = erts_atomic32_read_nob(&prt->state); + if (state & ERTS_PORT_SFLGS_DEAD) continue; /* Insert links */ - if(erts_port[i].nlinks) - insert_links(erts_port[i].nlinks, erts_port[i].id); + if (ERTS_P_LINKS(prt)) + insert_links(ERTS_P_LINKS(prt), prt->common.id); + /* Insert monitors */ + if (ERTS_P_MONITORS(prt)) + insert_monitors(ERTS_P_MONITORS(prt), prt->common.id); /* Insert port data */ - for(hfp = erts_port[i].bp; hfp; hfp = hfp->next) - insert_offheap(&(hfp->off_heap), HEAP_REF, erts_port[i].id); + ohp = erts_port_data_offheap(prt); + if (ohp) + insert_offheap(ohp, HEAP_REF, prt->common.id); /* Insert controller */ - if (erts_port[i].dist_entry) - insert_dist_entry(erts_port[i].dist_entry, + if (prt->dist_entry) + insert_dist_entry(prt->dist_entry, CTRL_REF, - erts_port[i].id, + prt->common.id, 0); } diff --git a/erts/emulator/beam/erl_node_tables.h b/erts/emulator/beam/erl_node_tables.h index 4a015bdef9..af60071ea5 100644 --- a/erts/emulator/beam/erl_node_tables.h +++ b/erts/emulator/beam/erl_node_tables.h @@ -84,10 +84,6 @@ typedef struct { } ErtsDistOutputQueue; struct ErtsProcList_; -typedef struct { - struct ErtsProcList_ *first; - struct ErtsProcList_ *last; -} ErtsDistSuspended; /* * Lock order: @@ -100,7 +96,6 @@ typedef struct { */ struct erl_link; -struct port; typedef struct dist_entry_ { HashBucket hash_bucket; /* Hash bucket */ @@ -135,13 +130,13 @@ typedef struct dist_entry_ { Uint32 qflgs; Sint qsize; ErtsDistOutputQueue out_queue; - ErtsDistSuspended suspended; + struct ErtsProcList_ *suspended; ErtsDistOutputQueue finalized_out_queue; erts_smp_atomic_t dist_cmd_scheduled; ErtsPortTaskHandle dist_cmd; - Uint (*send)(struct port *prt, ErtsDistOutputBuf *obuf); + Uint (*send)(Port *prt, ErtsDistOutputBuf *obuf); struct cache* cache; /* The atom cache */ } DistEntry; diff --git a/erts/emulator/beam/erl_port.h b/erts/emulator/beam/erl_port.h new file mode 100644 index 0000000000..ad3f104a68 --- /dev/null +++ b/erts/emulator/beam/erl_port.h @@ -0,0 +1,957 @@ +/* + * %CopyrightBegin% + * + * Copyright Ericsson AB 2012-2013. All Rights Reserved. + * + * The contents of this file are subject to the Erlang Public License, + * Version 1.1, (the "License"); you may not use this file except in + * compliance with the License. You should have received a copy of the + * Erlang Public License along with this software. If not, it can be + * retrieved online at http://www.erlang.org/. + * + * Software distributed under the License is distributed on an "AS IS" + * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See + * the License for the specific language governing rights and limitations + * under the License. + * + * %CopyrightEnd% + */ + +#ifndef ERL_PORT_TYPE__ +#define ERL_PORT_TYPE__ +typedef struct _erl_drv_port Port; +typedef struct ErtsProc2PortSigData_ ErtsProc2PortSigData; +#endif + +#if !defined(ERL_PORT_H__) && !defined(ERL_PORT_GET_PORT_TYPE_ONLY__) +#define ERL_PORT_H__ + +#include "erl_port_task.h" +#include "erl_ptab.h" +#include "erl_thr_progress.h" +#include "erl_trace.h" + +#ifndef __WIN32__ +#define ERTS_DEFAULT_MAX_PORTS (1 << 16) +#else +/* + * Do not default to as many max ports on Windows + * as there are no os limits to stop system + * from running amok. If allowed to go too high + * windows rarely recovers from the errors and + * other OS processes can be effected. + */ +#define ERTS_DEFAULT_MAX_PORTS (1 << 13) +#endif /* __WIN32__ */ +#define ERTS_MIN_PORTS 1024 + +extern int erts_port_synchronous_ops; +extern int erts_port_schedule_all_ops; +extern int erts_port_parallelism; + +typedef struct erts_driver_t_ erts_driver_t; + +/* + * It would have been preferred to use NULL as value of + * ERTS_INVALID_ERL_DRV_PORT. That would, however, not be + * backward compatible. In pre-R16 systems, 0 was a valid + * port handle and -1 was used as invalid handle, so we + * are stuck with it. + */ +#define ERTS_INVALID_ERL_DRV_PORT ((struct _erl_drv_port *) ((SWord) -1)) +#ifdef DEBUG +/* Make sure we use this api, and do not cast directly */ +#define ERTS_ErlDrvPort2Port(PH) \ + ((PH) == ERTS_INVALID_ERL_DRV_PORT \ + ? ERTS_INVALID_ERL_DRV_PORT \ + : ((Port *) ((PH) - 4711))) +#define ERTS_Port2ErlDrvPort(PH) \ + ((PH) == ERTS_INVALID_ERL_DRV_PORT \ + ? ERTS_INVALID_ERL_DRV_PORT \ + : ((ErlDrvPort) ((PH) + 4711))) +#else +#define ERTS_ErlDrvPort2Port(PH) ((Port *) (PH)) +#define ERTS_Port2ErlDrvPort(PH) ((ErlDrvPort) (PH)) +#endif + +#define SMALL_IO_QUEUE 5 /* Number of fixed elements */ + +typedef struct { + ErlDrvSizeT size; /* total size in bytes */ + + SysIOVec* v_start; + SysIOVec* v_end; + SysIOVec* v_head; + SysIOVec* v_tail; + SysIOVec v_small[SMALL_IO_QUEUE]; + + ErlDrvBinary** b_start; + ErlDrvBinary** b_end; + ErlDrvBinary** b_head; + ErlDrvBinary** b_tail; + ErlDrvBinary* b_small[SMALL_IO_QUEUE]; +} ErlIOQueue; + +typedef struct line_buf { /* Buffer used in line oriented I/O */ + ErlDrvSizeT bufsiz; /* Size of character buffer */ + ErlDrvSizeT ovlen; /* Length of overflow data */ + ErlDrvSizeT ovsiz; /* Actual size of overflow buffer */ + char data[1]; /* Starting point of buffer data, + data[0] is a flag indicating an unprocess CR, + The rest is the overflow buffer. */ +} LineBuf; + +/* + * Items part of erlang:port_info/1 result. Note am_registered_name + * *need* to be first. + */ + +#define ERTS_PORT_INFO_1_ITEMS \ + { am_registered_name, /* Needs to be first */ \ + am_name, \ + am_links, \ + am_id, \ + am_connected, \ + am_input, \ + am_output, \ + am_os_pid } + +/* + * Port Specific Data. + * + * Only use PrtSD for very rarely used data. + */ + +#define ERTS_PRTSD_SCHED_ID 0 + +#define ERTS_PRTSD_SIZE 1 + +typedef struct { + void *data[ERTS_PRTSD_SIZE]; +} ErtsPrtSD; + +#ifdef ERTS_SMP +typedef struct ErtsXPortsList_ ErtsXPortsList; +#endif + +/* + * Port locking: + * + * Locking is done either driver specific or port specific. When + * driver specific locking is used, all instances of the driver, + * i.e. ports running the driver, share the same lock. When port + * specific locking is used each instance have its own lock. + * + * Most fields in the Port structure are protected by the lock + * referred to by the 'lock' field. This lock is shared between + * all ports running the same driver when driver specific locking + * is used. + * + * The 'sched' field is protected by the run queue lock that the + * port currently is assigned to. + * + */ + +struct _erl_drv_port { + ErtsPTabElementCommon common; /* *Need* to be first in struct */ + + ErtsPortTaskSched sched; + ErtsPortTaskHandle timeout_task; +#ifdef ERTS_SMP + erts_mtx_t *lock; + ErtsXPortsList *xports; + erts_smp_atomic_t run_queue; +#else + erts_atomic32_t refc; + int cleanup; +#endif + erts_atomic_t connected; /* A connected process */ + Eterm caller; /* Current caller. */ + erts_smp_atomic_t data; /* Data associated with port. */ + Uint bytes_in; /* Number of bytes read */ + Uint bytes_out; /* Number of bytes written */ + + ErlIOQueue ioq; /* driver accessible i/o queue */ + DistEntry *dist_entry; /* Dist entry used in DISTRIBUTION */ + char *name; /* String used in the open */ + erts_driver_t* drv_ptr; + UWord drv_data; + SWord os_pid; /* Child process ID */ + ErtsProcList *suspended; /* List of suspended processes. */ + LineBuf *linebuf; /* Buffer to hold data not ready for + process to get (line oriented I/O)*/ + erts_atomic32_t state; /* Status and type flags */ + int control_flags; /* Flags for port_control() */ + ErlDrvPDL port_data_lock; + + ErtsPrtSD *psd; /* Port specific data */ + int reds; /* Only used while executing driver callbacks */ +}; + + +void erts_init_port_data(Port *); +void erts_cleanup_port_data(Port *); +Uint erts_port_data_size(Port *); +ErlOffHeap *erts_port_data_offheap(Port *); + +#define ERTS_PORT_GET_CONNECTED(PRT) \ + ((Eterm) erts_atomic_read_nob(&(PRT)->connected)) +#define ERTS_PORT_SET_CONNECTED(PRT, PID) \ + erts_atomic_set_relb(&(PRT)->connected, (erts_aint_t) (PID)) +#define ERTS_PORT_INIT_CONNECTED(PRT, PID) \ + erts_atomic_init_nob(&(PRT)->connected, (erts_aint_t) (PID)) + + +struct erl_drv_port_data_lock { + erts_mtx_t mtx; + erts_atomic_t refc; + Port *prt; +}; + +ERTS_GLB_INLINE ErtsRunQueue *erts_port_runq(Port *prt); + +#if ERTS_GLB_INLINE_INCL_FUNC_DEF + +ERTS_GLB_INLINE ErtsRunQueue * +erts_port_runq(Port *prt) +{ +#ifdef ERTS_SMP + ErtsRunQueue *rq1, *rq2; + rq1 = (ErtsRunQueue *) erts_smp_atomic_read_nob(&prt->run_queue); + if (!rq1) + return NULL; + while (1) { + erts_smp_runq_lock(rq1); + rq2 = (ErtsRunQueue *) erts_smp_atomic_read_nob(&prt->run_queue); + if (rq1 == rq2) + return rq1; + erts_smp_runq_unlock(rq1); + rq1 = rq2; + if (!rq1) + return NULL; + } +#else + return ERTS_RUNQ_IX(0); +#endif +} + +#endif + + +ERTS_GLB_INLINE void *erts_prtsd_get(Port *p, int ix); +ERTS_GLB_INLINE void *erts_prtsd_set(Port *p, int ix, void *new); + +#if ERTS_GLB_INLINE_INCL_FUNC_DEF + +ERTS_GLB_INLINE void * +erts_prtsd_get(Port *prt, int ix) +{ + return prt->psd ? prt->psd->data[ix] : NULL; +} + +ERTS_GLB_INLINE void * +erts_prtsd_set(Port *prt, int ix, void *data) +{ + if (prt->psd) { + void *old = prt->psd->data[ix]; + prt->psd->data[ix] = data; + return old; + } + else { + prt->psd = erts_alloc(ERTS_ALC_T_PRTSD, sizeof(ErtsPrtSD)); + prt->psd->data[ix] = data; + return NULL; + } +} + +#endif + +extern erts_smp_atomic_t erts_bytes_out; /* no bytes written out */ +extern erts_smp_atomic_t erts_bytes_in; /* no bytes sent into the system */ + + +/* port status flags */ + +#define ERTS_PORT_SFLG_CONNECTED ((Uint32) (1 << 0)) +/* Port have begun exiting */ +#define ERTS_PORT_SFLG_EXITING ((Uint32) (1 << 1)) +/* Distribution port */ +#define ERTS_PORT_SFLG_DISTRIBUTION ((Uint32) (1 << 2)) +#define ERTS_PORT_SFLG_BINARY_IO ((Uint32) (1 << 3)) +#define ERTS_PORT_SFLG_SOFT_EOF ((Uint32) (1 << 4)) +/* Flow control */ +/* Port is closing (no i/o accepted) */ +#define ERTS_PORT_SFLG_CLOSING ((Uint32) (1 << 5)) +/* Send a closed message when terminating */ +#define ERTS_PORT_SFLG_SEND_CLOSED ((Uint32) (1 << 6)) +/* Line orinted io on port */ +#define ERTS_PORT_SFLG_LINEBUF_IO ((Uint32) (1 << 7)) +/* Immortal port (only certain system ports) */ +#define ERTS_PORT_SFLG_FREE ((Uint32) (1 << 8)) +#define ERTS_PORT_SFLG_INITIALIZING ((Uint32) (1 << 9)) +/* Port uses port specific locking (opposed to driver specific locking) */ +#define ERTS_PORT_SFLG_PORT_SPECIFIC_LOCK ((Uint32) (1 << 10)) +#define ERTS_PORT_SFLG_INVALID ((Uint32) (1 << 11)) +/* Last port to terminate halts the emulator */ +#define ERTS_PORT_SFLG_HALT ((Uint32) (1 << 12)) +#ifdef DEBUG +/* Only debug: make sure all flags aren't cleared unintentionally */ +#define ERTS_PORT_SFLG_PORT_DEBUG ((Uint32) (1 << 31)) +#endif + +/* Combinations of port status flags */ +#define ERTS_PORT_SFLGS_DEAD \ + (ERTS_PORT_SFLG_FREE | ERTS_PORT_SFLG_INITIALIZING) +#define ERTS_PORT_SFLGS_INVALID_DRIVER_LOOKUP \ + (ERTS_PORT_SFLGS_DEAD | ERTS_PORT_SFLG_INVALID) +#define ERTS_PORT_SFLGS_INVALID_LOOKUP \ + (ERTS_PORT_SFLGS_INVALID_DRIVER_LOOKUP \ + | ERTS_PORT_SFLG_EXITING \ + | ERTS_PORT_SFLG_CLOSING) +#define ERTS_PORT_SFLGS_INVALID_TRACER_LOOKUP \ + (ERTS_PORT_SFLGS_INVALID_LOOKUP \ + | ERTS_PORT_SFLG_DISTRIBUTION) + +/* + * Costs in reductions for some port operations. + */ +#define ERTS_PORT_REDS_EXECUTE (CONTEXT_REDS/4) +#define ERTS_PORT_REDS_FREE (CONTEXT_REDS/400) +#define ERTS_PORT_REDS_TIMEOUT (CONTEXT_REDS/100) +#define ERTS_PORT_REDS_INPUT (CONTEXT_REDS/100) +#define ERTS_PORT_REDS_OUTPUT (CONTEXT_REDS/100) +#define ERTS_PORT_REDS_EVENT (CONTEXT_REDS/100) +#define ERTS_PORT_REDS_CMD_OUTPUTV (CONTEXT_REDS/100) +#define ERTS_PORT_REDS_CMD_OUTPUT (CONTEXT_REDS/100) +#define ERTS_PORT_REDS_EXIT (CONTEXT_REDS/100) +#define ERTS_PORT_REDS_CONNECT (CONTEXT_REDS/200) +#define ERTS_PORT_REDS_UNLINK (CONTEXT_REDS/200) +#define ERTS_PORT_REDS_LINK (CONTEXT_REDS/200) +#define ERTS_PORT_REDS_BADSIG (CONTEXT_REDS/200) +#define ERTS_PORT_REDS_CONTROL (CONTEXT_REDS/100) +#define ERTS_PORT_REDS_CALL (CONTEXT_REDS/50) +#define ERTS_PORT_REDS_INFO (CONTEXT_REDS/100) +#define ERTS_PORT_REDS_TERMINATE (CONTEXT_REDS/50) + +void print_port_info(Port *, int, void *); +void erts_port_free(Port *); +#ifndef ERTS_SMP +void erts_port_cleanup(Port *); +#endif +void erts_fire_port_monitor(Port *prt, Eterm ref); +#ifdef ERTS_SMP +int erts_port_handle_xports(Port *); +#endif + +#if defined(ERTS_SMP) && defined(ERTS_ENABLE_LOCK_CHECK) +int erts_lc_is_port_locked(Port *); +#endif + +ERTS_GLB_INLINE void erts_port_inc_refc(Port *prt); +ERTS_GLB_INLINE void erts_port_dec_refc(Port *prt); +ERTS_GLB_INLINE void erts_port_add_refc(Port *prt, Sint32 add_refc); + +ERTS_GLB_INLINE int erts_smp_port_trylock(Port *prt); +ERTS_GLB_INLINE void erts_smp_port_lock(Port *prt); +ERTS_GLB_INLINE void erts_smp_port_unlock(Port *prt); + +#if ERTS_GLB_INLINE_INCL_FUNC_DEF + +ERTS_GLB_INLINE void erts_port_inc_refc(Port *prt) +{ +#ifdef ERTS_SMP + erts_ptab_inc_refc(&prt->common); +#else + erts_atomic32_inc_nob(&prt->refc); +#endif +} + +ERTS_GLB_INLINE void erts_port_dec_refc(Port *prt) +{ +#ifdef ERTS_SMP + int referred = erts_ptab_dec_test_refc(&prt->common); + if (!referred) + erts_port_free(prt); +#else + int refc = erts_atomic32_dec_read_nob(&prt->refc); + if (refc == 0) + erts_port_free(prt); +#endif +} + +ERTS_GLB_INLINE void erts_port_add_refc(Port *prt, Sint32 add_refc) +{ +#ifdef ERTS_SMP + int referred = erts_ptab_add_test_refc(&prt->common, add_refc); + if (!referred) + erts_port_free(prt); +#else + int refc = erts_atomic32_add_read_nob(&prt->refc, add_refc); + if (refc == 0) + erts_port_free(prt); +#endif +} + +ERTS_GLB_INLINE int +erts_smp_port_trylock(Port *prt) +{ +#ifdef ERTS_SMP + /* *Need* to be a managed thread */ + ERTS_SMP_LC_ASSERT(erts_thr_progress_is_managed_thread()); + return erts_mtx_trylock(prt->lock); +#else + return 0; +#endif +} + +ERTS_GLB_INLINE void +erts_smp_port_lock(Port *prt) +{ +#ifdef ERTS_SMP + /* *Need* to be a managed thread */ + ERTS_SMP_LC_ASSERT(erts_thr_progress_is_managed_thread()); + erts_mtx_lock(prt->lock); +#endif +} + +ERTS_GLB_INLINE void +erts_smp_port_unlock(Port *prt) +{ +#ifdef ERTS_SMP + /* *Need* to be a managed thread */ + ERTS_SMP_LC_ASSERT(erts_thr_progress_is_managed_thread()); + erts_mtx_unlock(prt->lock); +#endif +} + +#endif /* #if ERTS_GLB_INLINE_INCL_FUNC_DEF */ + + +#define ERTS_INVALID_PORT_OPT(PP, ID, FLGS) \ + (!(PP) \ + || (erts_atomic32_read_nob(&(PP)->state) & (FLGS)) \ + || (PP)->common.id != (ID)) + +/* port lookup */ + +#define INVALID_PORT(PP, ID) \ + ERTS_INVALID_PORT_OPT((PP), (ID), ERTS_PORT_SFLGS_INVALID_LOOKUP) + +/* Invalidate trace port if anything suspicious, for instance + * that the port is a distribution port or it is busy. + */ +#define INVALID_TRACER_PORT(PP, ID) \ + ERTS_INVALID_PORT_OPT((PP), (ID), ERTS_PORT_SFLGS_INVALID_TRACER_LOOKUP) + +#define ERTS_PORT_SCHED_ID(P, ID) \ + ((Uint) (UWord) erts_prtsd_set((P), ERTS_PSD_SCHED_ID, (void *) (UWord) (ID))) + +extern const Port erts_invalid_port; +#define ERTS_PORT_LOCK_BUSY ((Port *) &erts_invalid_port) + +int erts_is_port_ioq_empty(Port *); +void erts_terminate_port(Port *); + +#ifdef ERTS_SMP +Port *erts_de2port(DistEntry *, Process *, ErtsProcLocks); +#endif + +ERTS_GLB_INLINE Port *erts_pix2port(int); +ERTS_GLB_INLINE Port *erts_port_lookup_raw(Eterm); +ERTS_GLB_INLINE Port *erts_port_lookup(Eterm, Uint32); +ERTS_GLB_INLINE Port*erts_id2port(Eterm id); +ERTS_GLB_INLINE Port *erts_id2port_sflgs(Eterm, Process *, ErtsProcLocks, Uint32); +ERTS_GLB_INLINE void erts_port_release(Port *); +#ifdef ERTS_SMP +ERTS_GLB_INLINE Port *erts_thr_id2port_sflgs(Eterm id, Uint32 invalid_sflgs); +ERTS_GLB_INLINE void erts_thr_port_release(Port *prt); +#endif +ERTS_GLB_INLINE Port *erts_thr_drvport2port(ErlDrvPort, int); +ERTS_GLB_INLINE Port *erts_drvport2port_state(ErlDrvPort, erts_aint32_t *); +ERTS_GLB_INLINE Eterm erts_drvport2id(ErlDrvPort); +ERTS_GLB_INLINE Uint32 erts_portid2status(Eterm); +ERTS_GLB_INLINE int erts_is_port_alive(Eterm); +ERTS_GLB_INLINE int erts_is_valid_tracer_port(Eterm); +ERTS_GLB_INLINE int erts_port_driver_callback_epilogue(Port *, erts_aint32_t *); + +#define erts_drvport2port(Prt) erts_drvport2port_state((Prt), NULL) + +#if ERTS_GLB_INLINE_INCL_FUNC_DEF + +ERTS_GLB_INLINE Port *erts_pix2port(int ix) +{ + Port *prt; + ASSERT(0 <= ix && ix < erts_ptab_max(&erts_port)); + prt = (Port *) erts_ptab_pix2intptr_nob(&erts_port, ix); + return prt == ERTS_PORT_LOCK_BUSY ? NULL : prt; +} + +ERTS_GLB_INLINE Port * +erts_port_lookup_raw(Eterm id) +{ + Port *prt; + + ERTS_SMP_LC_ASSERT(erts_thr_progress_lc_is_delaying()); + + if (is_not_internal_port(id)) + return NULL; + + prt = (Port *) erts_ptab_pix2intptr_ddrb(&erts_port, + internal_port_index(id)); + return prt && prt->common.id == id ? prt : NULL; +} + +ERTS_GLB_INLINE Port * +erts_port_lookup(Eterm id, Uint32 invalid_sflgs) +{ + Port *prt = erts_port_lookup_raw(id); + return (!prt + ? NULL + : ((invalid_sflgs & erts_atomic32_read_nob(&prt->state)) + ? NULL + : prt)); +} + + +ERTS_GLB_INLINE Port* +erts_id2port(Eterm id) +{ + erts_aint32_t state; + Port *prt; + + /* Only allowed to be called from managed threads */ + ERTS_SMP_LC_ASSERT(erts_thr_progress_is_managed_thread()); + + if (is_not_internal_port(id)) + return NULL; + + prt = (Port *) erts_ptab_pix2intptr_ddrb(&erts_port, + internal_port_index(id)); + + if (!prt || prt->common.id != id) + return NULL; + + erts_smp_port_lock(prt); + state = erts_atomic32_read_nob(&prt->state); + if (state & ERTS_PORT_SFLGS_INVALID_LOOKUP) { + erts_smp_port_unlock(prt); + return NULL; + } + + return prt; +} + + +ERTS_GLB_INLINE Port* +erts_id2port_sflgs(Eterm id, + Process *c_p, ErtsProcLocks c_p_locks, + Uint32 invalid_sflgs) +{ +#ifdef ERTS_SMP + int no_proc_locks = !c_p || !c_p_locks; +#endif + erts_aint32_t state; + Port *prt; + + /* Only allowed to be called from managed threads */ + ERTS_SMP_LC_ASSERT(erts_thr_progress_is_managed_thread()); + + if (is_not_internal_port(id)) + return NULL; + + prt = (Port *) erts_ptab_pix2intptr_ddrb(&erts_port, + internal_port_index(id)); + + if (!prt || prt->common.id != id) + return NULL; + +#ifdef ERTS_SMP + if (no_proc_locks) + erts_smp_port_lock(prt); + else if (erts_smp_port_trylock(prt) == EBUSY) { + /* Unlock process locks, and acquire locks in lock order... */ + erts_smp_proc_unlock(c_p, c_p_locks); + erts_smp_port_lock(prt); + erts_smp_proc_lock(c_p, c_p_locks); + } +#endif + state = erts_atomic32_read_nob(&prt->state); + if (state & invalid_sflgs) { +#ifdef ERTS_SMP + erts_smp_port_unlock(prt); +#endif + return NULL; + } + + return prt; +} + +ERTS_GLB_INLINE void +erts_port_release(Port *prt) +{ + /* Only allowed to be called from managed threads */ + ERTS_SMP_LC_ASSERT(erts_thr_progress_is_managed_thread()); +#ifdef ERTS_SMP + erts_smp_port_unlock(prt); +#else + if (prt->cleanup) { + prt->cleanup = 0; + erts_port_cleanup(prt); + } +#endif +} + +#ifdef ERTS_SMP + +/* + * erts_thr_id2port_sflgs() and erts_thr_port_release() can + * be used by unmanaged threads in the SMP case. + */ +ERTS_GLB_INLINE Port * +erts_thr_id2port_sflgs(Eterm id, Uint32 invalid_sflgs) +{ + Port *prt; + ErtsThrPrgrDelayHandle dhndl; + + if (is_not_internal_port(id)) + return NULL; + + dhndl = erts_thr_progress_unmanaged_delay(); + + prt = (Port *) erts_ptab_pix2intptr_ddrb(&erts_port, + internal_port_index(id)); + + if (!prt || prt->common.id != id) { + erts_thr_progress_unmanaged_continue(dhndl); + prt = NULL; + } + else { + erts_aint32_t state; + if (dhndl != ERTS_THR_PRGR_DHANDLE_MANAGED) { + erts_port_inc_refc(prt); + erts_thr_progress_unmanaged_continue(dhndl); + } + + erts_mtx_lock(prt->lock); + state = erts_atomic32_read_nob(&prt->state); + if (state & invalid_sflgs) { + erts_mtx_unlock(prt->lock); + if (dhndl != ERTS_THR_PRGR_DHANDLE_MANAGED) + erts_port_dec_refc(prt); + prt = NULL; + } + } + + return prt; +} + +ERTS_GLB_INLINE void +erts_thr_port_release(Port *prt) +{ + erts_mtx_unlock(prt->lock); +#ifdef ERTS_SMP + if (!erts_thr_progress_is_managed_thread()) + erts_port_dec_refc(prt); +#endif +} + +#endif + +ERTS_GLB_INLINE Port * +erts_thr_drvport2port(ErlDrvPort drvport, int lock_pdl) +{ + Port *prt = ERTS_ErlDrvPort2Port(drvport); + ASSERT(prt != NULL); + if (prt == ERTS_INVALID_ERL_DRV_PORT) + return ERTS_INVALID_ERL_DRV_PORT; + + if (lock_pdl && prt->port_data_lock) + driver_pdl_lock(prt->port_data_lock); + +#if ERTS_ENABLE_LOCK_CHECK + if (!ERTS_IS_CRASH_DUMPING) { + if (erts_lc_is_emu_thr()) { + ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt)); + ERTS_LC_ASSERT(!prt->port_data_lock + || erts_lc_mtx_is_locked(&prt->port_data_lock->mtx)); + } + else { + ERTS_LC_ASSERT(prt->port_data_lock); + ERTS_LC_ASSERT(erts_lc_mtx_is_locked(&prt->port_data_lock->mtx)); + } + } +#endif + + if (erts_atomic32_read_nob(&prt->state) + & ERTS_PORT_SFLGS_INVALID_DRIVER_LOOKUP) { + if (lock_pdl && prt->port_data_lock) + driver_pdl_unlock(prt->port_data_lock); + return ERTS_INVALID_ERL_DRV_PORT; + } + return prt; +} + +ERTS_GLB_INLINE Port * +erts_drvport2port_state(ErlDrvPort drvport, erts_aint32_t *statep) +{ + Port *prt = ERTS_ErlDrvPort2Port(drvport); + erts_aint32_t state; + ASSERT(prt); + ERTS_LC_ASSERT(erts_lc_is_emu_thr()); + if (prt == ERTS_INVALID_ERL_DRV_PORT) + return ERTS_INVALID_ERL_DRV_PORT; + ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt) + || ERTS_IS_CRASH_DUMPING); + /* + * This state check is only needed since a driver callback + * might terminate the port, and then call back into the + * emulator. Drivers should preferably have been forbidden + * to call into the emulator after terminating the port, + * but it has been like this for ages. Perhaps forbid this + * in some future major release? + */ + state = erts_atomic32_read_nob(&prt->state); + if (state & ERTS_PORT_SFLGS_INVALID_DRIVER_LOOKUP) + return ERTS_INVALID_ERL_DRV_PORT; + if (statep) + *statep = state; + return prt; +} + +ERTS_GLB_INLINE Eterm +erts_drvport2id(ErlDrvPort drvport) +{ + Port *prt = erts_drvport2port(drvport); + if (prt == ERTS_INVALID_ERL_DRV_PORT) + return am_undefined; + else + return prt->common.id; +} + +ERTS_GLB_INLINE Uint32 +erts_portid2status(Eterm id) +{ + Port *prt = erts_port_lookup_raw(id); + if (prt) + return (Uint32) erts_atomic32_read_acqb(&prt->state); + else + return ERTS_PORT_SFLG_INVALID; +} + +ERTS_GLB_INLINE int +erts_is_port_alive(Eterm id) +{ + return !(erts_portid2status(id) & (ERTS_PORT_SFLG_INVALID + | ERTS_PORT_SFLGS_DEAD)); +} + +ERTS_GLB_INLINE int +erts_is_valid_tracer_port(Eterm id) +{ + return !(erts_portid2status(id) & ERTS_PORT_SFLGS_INVALID_TRACER_LOOKUP); +} + +ERTS_GLB_INLINE int +erts_port_driver_callback_epilogue(Port *prt, erts_aint32_t *statep) +{ + int reds = 0; + erts_aint32_t state; + + ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt)); + + state = erts_atomic32_read_nob(&prt->state); + if ((state & ERTS_PORT_SFLG_CLOSING) && erts_is_port_ioq_empty(prt)) { + reds += ERTS_PORT_REDS_TERMINATE; + erts_terminate_port(prt); + state = erts_atomic32_read_nob(&prt->state); + ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt)); + } + +#ifdef ERTS_SMP + if (prt->xports) { + reds += erts_port_handle_xports(prt); + ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt)); + ASSERT(!prt->xports); + } +#endif + + if (statep) + *statep = state; + + return reds; +} + +#endif /* #if ERTS_GLB_INLINE_INCL_FUNC_DEF */ + +void erts_port_resume_procs(Port *); + +struct binary; + +#define ERTS_P2P_SIG_TYPE_BAD 0 +#define ERTS_P2P_SIG_TYPE_OUTPUT 1 +#define ERTS_P2P_SIG_TYPE_OUTPUTV 2 +#define ERTS_P2P_SIG_TYPE_CONNECT 3 +#define ERTS_P2P_SIG_TYPE_EXIT 4 +#define ERTS_P2P_SIG_TYPE_CONTROL 5 +#define ERTS_P2P_SIG_TYPE_CALL 6 +#define ERTS_P2P_SIG_TYPE_INFO 7 +#define ERTS_P2P_SIG_TYPE_LINK 8 +#define ERTS_P2P_SIG_TYPE_UNLINK 9 + +#define ERTS_P2P_SIG_TYPE_BITS 4 +#define ERTS_P2P_SIG_TYPE_MASK \ + ((1 << ERTS_P2P_SIG_TYPE_BITS) - 1) + +#define ERTS_P2P_SIG_DATA_FLG(N) \ + (1 << (ERTS_P2P_SIG_TYPE_BITS + (N))) +#define ERTS_P2P_SIG_DATA_FLG_BANG_OP ERTS_P2P_SIG_DATA_FLG(0) +#define ERTS_P2P_SIG_DATA_FLG_REPLY ERTS_P2P_SIG_DATA_FLG(1) +#define ERTS_P2P_SIG_DATA_FLG_NOSUSPEND ERTS_P2P_SIG_DATA_FLG(2) +#define ERTS_P2P_SIG_DATA_FLG_FORCE ERTS_P2P_SIG_DATA_FLG(3) +#define ERTS_P2P_SIG_DATA_FLG_BAD_OUTPUT ERTS_P2P_SIG_DATA_FLG(4) +#define ERTS_P2P_SIG_DATA_FLG_BROKEN_LINK ERTS_P2P_SIG_DATA_FLG(5) +#define ERTS_P2P_SIG_DATA_FLG_SCHED ERTS_P2P_SIG_DATA_FLG(6) +#define ERTS_P2P_SIG_DATA_FLG_ASYNC ERTS_P2P_SIG_DATA_FLG(7) + +struct ErtsProc2PortSigData_ { + int flags; + Eterm caller; + Uint32 ref[ERTS_MAX_REF_NUMBERS]; + union { + struct { + Eterm from; + ErlIOVec *evp; + ErlDrvBinary *cbinp; + } outputv; + struct { + Eterm from; + char *bufp; + ErlDrvSizeT size; + } output; + struct { + Eterm from; + Eterm connected; + } connect; + struct { + Eterm from; + Eterm reason; + ErlHeapFragment *bp; + } exit; + struct { + struct binary *binp; + unsigned int command; + char *bufp; + ErlDrvSizeT size; + } control; + struct { + unsigned int command; + char *bufp; + ErlDrvSizeT size; + } call; + struct { + Eterm item; + } info; + struct { + Eterm port; + Eterm to; + } link; + struct { + Eterm from; + } unlink; + } u; +} ; + +ERTS_GLB_INLINE int +erts_proc2port_sig_is_command_op(ErtsProc2PortSigData *sigdp); +ERTS_GLB_INLINE ErlDrvSizeT +erts_proc2port_sig_command_data_size(ErtsProc2PortSigData *sigdp); + +#if ERTS_GLB_INLINE_INCL_FUNC_DEF + +ERTS_GLB_INLINE int +erts_proc2port_sig_is_command_op(ErtsProc2PortSigData *sigdp) +{ + switch (sigdp->flags & ERTS_P2P_SIG_TYPE_MASK) { + case ERTS_P2P_SIG_TYPE_OUTPUT: return !0; + case ERTS_P2P_SIG_TYPE_OUTPUTV: return !0; + default: return 0; + } +} + +ERTS_GLB_INLINE ErlDrvSizeT +erts_proc2port_sig_command_data_size(ErtsProc2PortSigData *sigdp) +{ + switch (sigdp->flags & ERTS_P2P_SIG_TYPE_MASK) { + case ERTS_P2P_SIG_TYPE_OUTPUT: return sigdp->u.output.size; + case ERTS_P2P_SIG_TYPE_OUTPUTV: return sigdp->u.outputv.evp->size; + default: return (ErlDrvSizeT) 0; + } +} + +#endif + +#define ERTS_PROC2PORT_SIG_EXEC 0 +#define ERTS_PROC2PORT_SIG_ABORT 1 +#define ERTS_PROC2PORT_SIG_ABORT_NOSUSPEND 2 +#define ERTS_PROC2PORT_SIG_ABORT_CLOSED 3 + +typedef int (*ErtsProc2PortSigCallback)(Port *, + erts_aint32_t, + int, + ErtsProc2PortSigData *); + +typedef enum { + ERTS_PORT_OP_BADARG, + ERTS_PORT_OP_CALLER_EXIT, + ERTS_PORT_OP_BUSY, + ERTS_PORT_OP_BUSY_SCHEDULED, + ERTS_PORT_OP_SCHEDULED, + ERTS_PORT_OP_DROPPED, + ERTS_PORT_OP_DONE +} ErtsPortOpResult; + +ErtsPortOpResult +erts_schedule_proc2port_signal(Process *, + Port *, + Eterm, + Eterm *, + ErtsProc2PortSigData *, + int, + ErtsPortTaskHandle *, + ErtsProc2PortSigCallback); + +int erts_deliver_port_exit(Port *, Eterm, Eterm, int); + +/* + * Port signal flags + */ +#define ERTS_PORT_SIG_FLG_BANG_OP ERTS_P2P_SIG_DATA_FLG_BANG_OP +#define ERTS_PORT_SIG_FLG_NOSUSPEND ERTS_P2P_SIG_DATA_FLG_NOSUSPEND +#define ERTS_PORT_SIG_FLG_FORCE ERTS_P2P_SIG_DATA_FLG_FORCE +#define ERTS_PORT_SIG_FLG_BROKEN_LINK ERTS_P2P_SIG_DATA_FLG_BROKEN_LINK +#define ERTS_PORT_SIG_FLG_BAD_OUTPUT ERTS_P2P_SIG_DATA_FLG_BAD_OUTPUT +#define ERTS_PORT_SIG_FLG_FORCE_SCHED ERTS_P2P_SIG_DATA_FLG_SCHED +#define ERTS_PORT_SIG_FLG_ASYNC ERTS_P2P_SIG_DATA_FLG_ASYNC +/* ERTS_PORT_SIG_FLG_FORCE_IMM_CALL only when crash dumping... */ +#define ERTS_PORT_SIG_FLG_FORCE_IMM_CALL ERTS_P2P_SIG_DATA_FLG_BAD_OUTPUT + +/* + * Port ! {Owner, {command, Data}} + * Port ! {Owner, {connect, NewOwner}} + * Port ! {Owner, close} + */ +ErtsPortOpResult erts_port_command(Process *, int, Port *, Eterm, Eterm *); + +/* + * Signals from processes to ports. + */ +ErtsPortOpResult erts_port_output(Process *, int, Port *, Eterm, Eterm, Eterm *); +ErtsPortOpResult erts_port_exit(Process *, int, Port *, Eterm, Eterm, Eterm *); +ErtsPortOpResult erts_port_connect(Process *, int, Port *, Eterm, Eterm, Eterm *); +ErtsPortOpResult erts_port_link(Process *, Port *, Eterm, Eterm *); +ErtsPortOpResult erts_port_unlink(Process *, Port *, Eterm, Eterm *); +ErtsPortOpResult erts_port_control(Process *, Port *, unsigned int, Eterm, Eterm *); +ErtsPortOpResult erts_port_call(Process *, Port *, unsigned int, Eterm, Eterm *); +ErtsPortOpResult erts_port_info(Process *, Port *, Eterm, Eterm *); + +#endif diff --git a/erts/emulator/beam/erl_port_task.c b/erts/emulator/beam/erl_port_task.c index 738f7d318b..4103d1192a 100644 --- a/erts/emulator/beam/erl_port_task.c +++ b/erts/emulator/beam/erl_port_task.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 2006-2012. All Rights Reserved. + * Copyright Ericsson AB 2006-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -33,42 +33,34 @@ #include "erl_port_task.h" #include "dist.h" #include "dtrace-wrapper.h" - -#if defined(DEBUG) && 0 -#define HARD_DEBUG -#endif +#include <stdarg.h> /* - * Costs in reductions for some port operations. + * ERTS_PORT_CALLBACK_VREDS: Limit the amount of callback calls we do... */ -#define ERTS_PORT_REDS_EXECUTE 0 -#define ERTS_PORT_REDS_FREE 50 -#define ERTS_PORT_REDS_TIMEOUT 200 -#define ERTS_PORT_REDS_INPUT 200 -#define ERTS_PORT_REDS_OUTPUT 200 -#define ERTS_PORT_REDS_EVENT 200 -#define ERTS_PORT_REDS_TERMINATE 100 +#define ERTS_PORT_CALLBACK_VREDS (CONTEXT_REDS/20) +#if defined(DEBUG) && 0 +#define ERTS_HARD_DEBUG_TASK_QUEUES +#else +#undef ERTS_HARD_DEBUG_TASK_QUEUES +#endif -#define ERTS_PORT_TASK_INVALID_PORT(P, ID) \ - ((erts_port_status_get((P)) & ERTS_PORT_SFLGS_DEAD) || (P)->id != (ID)) - -#define ERTS_PORT_IS_IN_RUNQ(RQ, P) \ - ((P)->sched.next || (P)->sched.prev || (RQ)->ports.start == (P)) - -#define ERTS_PORT_NOT_IN_RUNQ(P) \ -do { \ - (P)->sched.prev = NULL; \ - (P)->sched.next = NULL; \ -} while (0) +#ifdef ERTS_HARD_DEBUG_TASK_QUEUES +static void chk_task_queues(Port *pp, ErtsPortTask *execq, int processing_busy_queue); +#define ERTS_PT_DBG_CHK_TASK_QS(PP, EQ, PBQ) \ + chk_task_queues((PP), (EQ), (PBQ)) +#else +#define ERTS_PT_DBG_CHK_TASK_QS(PP, EQ, PBQ) +#endif #ifdef USE_VM_PROBES #define DTRACE_DRIVER(PROBE_NAME, PP) \ - if (DTRACE_ENABLED(driver_ready_input)) { \ + if (DTRACE_ENABLED(PROBE_NAME)) { \ DTRACE_CHARBUF(process_str, DTRACE_TERM_BUF_SIZE); \ DTRACE_CHARBUF(port_str, DTRACE_TERM_BUF_SIZE); \ \ - dtrace_pid_str(PP->connected, process_str); \ + dtrace_pid_str(ERTS_PORT_GET_CONNECTED(PP), process_str); \ dtrace_port_str(PP, port_str); \ DTRACE3(PROBE_NAME, process_str, port_str, PP->name); \ } @@ -85,83 +77,789 @@ do { \ erts_smp_atomic_t erts_port_task_outstanding_io_tasks; -struct ErtsPortTaskQueue_ { - ErtsPortTask *first; - ErtsPortTask *last; - Port *port; -}; +#define ERTS_PT_STATE_SCHEDULED 0 +#define ERTS_PT_STATE_ABORTED 1 +#define ERTS_PT_STATE_EXECUTING 2 + +typedef union { + struct { /* I/O tasks */ + ErlDrvEvent event; + ErlDrvEventData event_data; + } io; + struct { + ErtsProc2PortSigCallback callback; + ErtsProc2PortSigData data; + } psig; +} ErtsPortTaskTypeData; struct ErtsPortTask_ { - ErtsPortTask *prev; - ErtsPortTask *next; - ErtsPortTaskQueue *queue; - ErtsPortTaskHandle *handle; + erts_smp_atomic32_t state; ErtsPortTaskType type; - ErlDrvEvent event; - ErlDrvEventData event_data; + union { + struct { + ErtsPortTask *next; + ErtsPortTaskHandle *handle; + int flags; + Uint32 ref[ERTS_MAX_REF_NUMBERS]; + ErtsPortTaskTypeData td; + } alive; + ErtsThrPrgrLaterOp release; + } u; }; -#ifdef HARD_DEBUG -#define ERTS_PT_CHK_PORTQ(RQ) check_port_queue((RQ), NULL, 0) -#define ERTS_PT_CHK_PRES_PORTQ(RQ, PP) check_port_queue((RQ), (PP), -1) -#define ERTS_PT_CHK_IN_PORTQ(RQ, PP) check_port_queue((RQ), (PP), 1) -#define ERTS_PT_CHK_NOT_IN_PORTQ(RQ, PP) check_port_queue((RQ), (PP), 0) -#define ERTS_PT_CHK_TASKQ(Q) check_task_queue((Q), NULL, 0) -#define ERTS_PT_CHK_IN_TASKQ(Q, T) check_task_queue((Q), (T), 1) -#define ERTS_PT_CHK_NOT_IN_TASKQ(Q, T) check_task_queue((Q), (T), 0) -static void -check_port_queue(Port *chk_pp, int inq); -static void -check_task_queue(ErtsPortTaskQueue *ptqp, - ErtsPortTask *chk_ptp, - int inq); -#else -#define ERTS_PT_CHK_PORTQ(RQ) -#define ERTS_PT_CHK_PRES_PORTQ(RQ, PP) -#define ERTS_PT_CHK_IN_PORTQ(RQ, PP) -#define ERTS_PT_CHK_NOT_IN_PORTQ(RQ, PP) -#define ERTS_PT_CHK_TASKQ(Q) -#define ERTS_PT_CHK_IN_TASKQ(Q, T) -#define ERTS_PT_CHK_NOT_IN_TASKQ(Q, T) +struct ErtsPortTaskHandleList_ { + ErtsPortTaskHandle handle; + union { + ErtsPortTaskHandleList *next; +#ifdef ERTS_SMP + ErtsThrPrgrLaterOp release; #endif + } u; +}; + +typedef struct ErtsPortTaskBusyCaller_ ErtsPortTaskBusyCaller; +struct ErtsPortTaskBusyCaller_ { + ErtsPortTaskBusyCaller *next; + Eterm caller; + SWord count; + ErtsPortTask *last; +}; + +#define ERTS_PORT_TASK_BUSY_CALLER_TABLE_BUCKETS 17 +struct ErtsPortTaskBusyCallerTable_ { + ErtsPortTaskBusyCaller *bucket[ERTS_PORT_TASK_BUSY_CALLER_TABLE_BUCKETS]; + ErtsPortTaskBusyCaller pre_alloc_busy_caller; +}; + -static void handle_remaining_tasks(ErtsRunQueue *runq, Port *pp); +static void begin_port_cleanup(Port *pp, + ErtsPortTask **execq, + int *processing_busy_q_p); ERTS_SCHED_PREF_QUICK_ALLOC_IMPL(port_task, ErtsPortTask, - 200, + 1000, ERTS_ALC_T_PORT_TASK) -ERTS_SCHED_PREF_QUICK_ALLOC_IMPL(port_taskq, - ErtsPortTaskQueue, + +ERTS_SCHED_PREF_QUICK_ALLOC_IMPL(busy_caller_table, + ErtsPortTaskBusyCallerTable, 50, - ERTS_ALC_T_PORT_TASKQ) + ERTS_ALC_T_BUSY_CALLER_TAB) + +#ifdef ERTS_SMP +static void +call_port_task_free(void *vptp) +{ + port_task_free((ErtsPortTask *) vptp); +} +#endif + +static ERTS_INLINE void +schedule_port_task_free(ErtsPortTask *ptp) +{ +#ifdef ERTS_SMP + erts_schedule_thr_prgr_later_cleanup_op(call_port_task_free, + (void *) ptp, + &ptp->u.release, + sizeof(ErtsPortTask)); +#else + port_task_free(ptp); +#endif +} + +static ERTS_INLINE ErtsPortTask * +p2p_sig_data_to_task(ErtsProc2PortSigData *sigdp) +{ + ErtsPortTask *ptp; + char *ptr = (char *) sigdp; + ptr -= offsetof(ErtsPortTask, u.alive.td.psig.data); + ptp = (ErtsPortTask *) ptr; + ASSERT(ptp->type == ERTS_PORT_TASK_PROC_SIG); + return ptp; +} + +ErtsProc2PortSigData * +erts_port_task_alloc_p2p_sig_data(void) +{ + ErtsPortTask *ptp = port_task_alloc(); + + ptp->type = ERTS_PORT_TASK_PROC_SIG; + ptp->u.alive.flags = ERTS_PT_FLG_SIG_DEP; + erts_smp_atomic32_init_nob(&ptp->state, ERTS_PT_STATE_SCHEDULED); + + ASSERT(ptp == p2p_sig_data_to_task(&ptp->u.alive.td.psig.data)); + + return &ptp->u.alive.td.psig.data; +} + +static ERTS_INLINE Eterm +task_caller(ErtsPortTask *ptp) +{ + Eterm caller; + + ASSERT(ptp->type == ERTS_PORT_TASK_PROC_SIG); + + caller = ptp->u.alive.td.psig.data.caller; + + ASSERT(is_internal_pid(caller) || is_internal_port(caller)); + + return caller; +} + +/* + * Busy queue management + */ + +static ERTS_INLINE int +caller2bix(Eterm caller) +{ + ASSERT(is_internal_pid(caller) || is_internal_port(caller)); + return (int) (_GET_PID_DATA(caller) % ERTS_PORT_TASK_BUSY_CALLER_TABLE_BUCKETS); +} + + +static void +popped_from_busy_queue(Port *pp, ErtsPortTask *ptp, int last) +{ + ErtsPortTaskBusyCaller **prev_bcpp = NULL, *bcp; + ErtsPortTaskBusyCallerTable *tabp = pp->sched.taskq.local.busy.table; + Eterm caller = task_caller(ptp); + int bix = caller2bix(caller); + + ASSERT(is_internal_pid(caller)); + + ASSERT(tabp); + bcp = tabp->bucket[bix]; + prev_bcpp = &tabp->bucket[bix]; + ASSERT(bcp); + while (bcp->caller != caller) { + prev_bcpp = &bcp->next; + bcp = bcp->next; + ASSERT(bcp); + } + ASSERT(bcp->count > 0); + if (--bcp->count != 0) { + ASSERT(!last); + } + else { + *prev_bcpp = bcp->next; + if (bcp == &tabp->pre_alloc_busy_caller) + bcp->caller = am_undefined; + else + erts_free(ERTS_ALC_T_BUSY_CALLER, bcp); + if (last) { +#ifdef DEBUG + erts_aint32_t flags = +#endif + erts_smp_atomic32_read_band_nob( + &pp->sched.flags, + ~ERTS_PTS_FLG_HAVE_BUSY_TASKS); + ASSERT(flags & ERTS_PTS_FLG_HAVE_BUSY_TASKS); +#ifdef DEBUG + for (bix = 0; bix < ERTS_PORT_TASK_BUSY_CALLER_TABLE_BUCKETS; bix++) { + ASSERT(!tabp->bucket[bix]); + } +#endif + busy_caller_table_free(tabp); + pp->sched.taskq.local.busy.first = NULL; + pp->sched.taskq.local.busy.last = NULL; + pp->sched.taskq.local.busy.table = NULL; + } + } +} + +static void +busy_wait_move_to_busy_queue(Port *pp, ErtsPortTask *ptp) +{ + ErtsPortTaskBusyCallerTable *tabp = pp->sched.taskq.local.busy.table; + Eterm caller = task_caller(ptp); + ErtsPortTaskBusyCaller *bcp; + int bix; + + ASSERT(is_internal_pid(caller)); + /* + * Port is busy and this task type needs to wait until not busy. + */ + + ASSERT(ptp->u.alive.flags & ERTS_PT_FLG_WAIT_BUSY); + + ptp->u.alive.next = NULL; + if (pp->sched.taskq.local.busy.last) { + ASSERT(pp->sched.taskq.local.busy.first); + pp->sched.taskq.local.busy.last->u.alive.next = ptp; + } + else { + int i; +#ifdef DEBUG + erts_aint32_t flags; +#endif + pp->sched.taskq.local.busy.first = ptp; + +#ifdef DEBUG + flags = +#endif + erts_smp_atomic32_read_bor_nob(&pp->sched.flags, + ERTS_PTS_FLG_HAVE_BUSY_TASKS); + ASSERT(!(flags & ERTS_PTS_FLG_HAVE_BUSY_TASKS)); + + ASSERT(!tabp); + + tabp = busy_caller_table_alloc(); + pp->sched.taskq.local.busy.table = tabp; + for (i = 0; i < ERTS_PORT_TASK_BUSY_CALLER_TABLE_BUCKETS; i++) + tabp->bucket[i] = NULL; + tabp->pre_alloc_busy_caller.caller = am_undefined; + } + pp->sched.taskq.local.busy.last = ptp; + + bix = caller2bix(caller); + ASSERT(tabp); + bcp = tabp->bucket[bix]; + + while (bcp && bcp->caller != caller) + bcp = bcp->next; + + if (bcp) + bcp->count++; + else { + if (tabp->pre_alloc_busy_caller.caller == am_undefined) + bcp = &tabp->pre_alloc_busy_caller; + else + bcp = erts_alloc(ERTS_ALC_T_BUSY_CALLER, + sizeof(ErtsPortTaskBusyCaller)); + bcp->caller = caller; + bcp->count = 1; + bcp->next = tabp->bucket[bix]; + tabp->bucket[bix] = bcp; + } + + bcp->last = ptp; +} + +static ERTS_INLINE int +check_sig_dep_move_to_busy_queue(Port *pp, ErtsPortTask *ptp) +{ + ErtsPortTaskBusyCallerTable *tabp = pp->sched.taskq.local.busy.table; + ErtsPortTask *last_ptp; + ErtsPortTaskBusyCaller *bcp; + int bix; + Eterm caller; + + ASSERT(ptp->u.alive.flags & ERTS_PT_FLG_SIG_DEP); + ASSERT(pp->sched.taskq.local.busy.last); + ASSERT(tabp); + + + /* + * We are either not busy, or the task does not imply wait on busy port. + * However, due to the signaling order requirements the task might depend + * on other tasks in the busy queue. + */ + + caller = task_caller(ptp); + bix = caller2bix(caller); + bcp = tabp->bucket[bix]; + while (bcp && bcp->caller != caller) + bcp = bcp->next; + + if (!bcp) + return 0; + + /* + * There are other tasks that we depend on in the busy queue; + * move into busy queue. + */ + + bcp->count++; + last_ptp = bcp->last; + ptp->u.alive.next = last_ptp->u.alive.next; + if (!ptp->u.alive.next) { + ASSERT(pp->sched.taskq.local.busy.last == last_ptp); + pp->sched.taskq.local.busy.last = ptp; + } + last_ptp->u.alive.next = ptp; + bcp->last = ptp; + + return 1; +} + +static void +no_sig_dep_move_from_busyq(Port *pp) +{ + ErtsPortTaskBusyCallerTable *tabp = pp->sched.taskq.local.busy.table; + ErtsPortTask *first_ptp, *last_ptp, *ptp; + ErtsPortTaskBusyCaller **prev_bcpp = NULL, *bcp = NULL; + + /* + * Move tasks at the head of the busy queue that no longer + * have any dependencies to busy wait tasks into the ordinary + * queue. + */ + + first_ptp = ptp = pp->sched.taskq.local.busy.first; + + ASSERT(ptp && !(ptp->u.alive.flags & ERTS_PT_FLG_WAIT_BUSY)); + ASSERT(tabp); + + do { + Eterm caller = task_caller(ptp); + + if (!bcp || bcp->caller != caller) { + int bix = caller2bix(caller); + + prev_bcpp = &tabp->bucket[bix]; + bcp = tabp->bucket[bix]; + ASSERT(bcp); + while (bcp->caller != caller) { + ASSERT(bcp); + prev_bcpp = &bcp->next; + bcp = bcp->next; + } + } + + ASSERT(bcp->caller == caller); + ASSERT(bcp->count > 0); + + if (--bcp->count == 0) { + *prev_bcpp = bcp->next; + if (bcp == &tabp->pre_alloc_busy_caller) + bcp->caller = am_undefined; + else + erts_free(ERTS_ALC_T_BUSY_CALLER, bcp); + } + + last_ptp = ptp; + ptp = ptp->u.alive.next; + } while (ptp && !(ptp->u.alive.flags & ERTS_PT_FLG_WAIT_BUSY)); + + pp->sched.taskq.local.busy.first = last_ptp->u.alive.next; + if (!pp->sched.taskq.local.busy.first) { +#ifdef DEBUG + int bix; + erts_aint32_t flags = +#endif + erts_smp_atomic32_read_band_nob( + &pp->sched.flags, + ~ERTS_PTS_FLG_HAVE_BUSY_TASKS); + ASSERT(flags & ERTS_PTS_FLG_HAVE_BUSY_TASKS); +#ifdef DEBUG + for (bix = 0; bix < ERTS_PORT_TASK_BUSY_CALLER_TABLE_BUCKETS; bix++) { + ASSERT(!tabp->bucket[bix]); + } +#endif + busy_caller_table_free(tabp); + pp->sched.taskq.local.busy.last = NULL; + pp->sched.taskq.local.busy.table = NULL; + } + last_ptp->u.alive.next = pp->sched.taskq.local.first; + pp->sched.taskq.local.first = first_ptp; +} + +#ifdef ERTS_HARD_DEBUG_TASK_QUEUES + +static void +chk_task_queues(Port *pp, ErtsPortTask *execq, int processing_busy_queue) +{ + Sint tot_count, tot_table_count; + int bix; + ErtsPortTask *ptp, *last; + ErtsPortTask *first = processing_busy_queue ? execq : pp->sched.taskq.local.busy.first; + ErtsPortTask *nb_task_queue = processing_busy_queue ? pp->sched.taskq.local.first : execq; + ErtsPortTaskBusyCallerTable *tabp = pp->sched.taskq.local.busy.table; + ErtsPortTaskBusyCaller *bcp; + + if (!first) { + ASSERT(!tabp); + ASSERT(!pp->sched.taskq.local.busy.last); + ASSERT(!(erts_smp_atomic32_read_nob(&pp->sched.flags) & ERTS_PTS_FLG_HAVE_BUSY_TASKS)); + return; + } + + ASSERT(erts_smp_atomic32_read_nob(&pp->sched.flags) & ERTS_PTS_FLG_HAVE_BUSY_TASKS); + ASSERT(tabp); + + tot_count = 0; + ptp = first; + while (ptp) { + Sint count = 0; + Eterm caller = task_caller(ptp); + int bix = caller2bix(caller); + for (bcp = tabp->bucket[bix]; bcp; bcp = bcp->next) + if (bcp->caller == caller) + break; + ASSERT(bcp && bcp->caller == caller); + + ASSERT(bcp->last); + while (1) { + ErtsPortTask *ptp2; + + ASSERT(caller == task_caller(ptp)); + count++; + tot_count++; + last = ptp; + + for (ptp2 = nb_task_queue; ptp2; ptp2 = ptp2->u.alive.next) { + ASSERT(ptp != ptp2); + } + + if (ptp == bcp->last) + break; + ptp = ptp->u.alive.next; + } + + ASSERT(count == bcp->count); + ptp = ptp->u.alive.next; + } + + tot_table_count = 0; + for (bix = 0; bix < ERTS_PORT_TASK_BUSY_CALLER_TABLE_BUCKETS; bix++) { + for (bcp = tabp->bucket[bix]; bcp; bcp = bcp->next) + tot_table_count += bcp->count; + } + + ASSERT(tot_count == tot_table_count); + + ASSERT(last == pp->sched.taskq.local.busy.last); +} + +#endif /* ERTS_HARD_DEBUG_TASK_QUEUES */ /* * Task handle manipulation. */ +static ERTS_INLINE void +reset_port_task_handle(ErtsPortTaskHandle *pthp) +{ + erts_smp_atomic_set_relb(pthp, (erts_aint_t) NULL); +} + static ERTS_INLINE ErtsPortTask * handle2task(ErtsPortTaskHandle *pthp) { - return (ErtsPortTask *) erts_smp_atomic_read_nob(pthp); + return (ErtsPortTask *) erts_smp_atomic_read_acqb(pthp); } static ERTS_INLINE void reset_handle(ErtsPortTask *ptp) { - if (ptp->handle) { - ASSERT(ptp == handle2task(ptp->handle)); - erts_smp_atomic_set_nob(ptp->handle, (erts_aint_t) NULL); + if (ptp->u.alive.handle) { + ASSERT(ptp == handle2task(ptp->u.alive.handle)); + reset_port_task_handle(ptp->u.alive.handle); } } static ERTS_INLINE void set_handle(ErtsPortTask *ptp, ErtsPortTaskHandle *pthp) { - ptp->handle = pthp; + ptp->u.alive.handle = pthp; + if (pthp) { + erts_smp_atomic_set_relb(pthp, (erts_aint_t) ptp); + ASSERT(ptp == handle2task(ptp->u.alive.handle)); + } +} + +static ERTS_INLINE void +set_tmp_handle(ErtsPortTask *ptp, ErtsPortTaskHandle *pthp) +{ + ptp->u.alive.handle = NULL; if (pthp) { - erts_smp_atomic_set_nob(pthp, (erts_aint_t) ptp); - ASSERT(ptp == handle2task(ptp->handle)); + /* + * IMPORTANT! Task either need to be aborted, or task handle + * need to be detached before thread progress has been made. + */ + erts_smp_atomic_set_relb(pthp, (erts_aint_t) ptp); + } +} + + +/* + * Busy port queue management + */ + +static erts_aint32_t +check_unset_busy_port_q(Port *pp, + erts_aint32_t flags, + ErtsPortTaskBusyPortQ *bpq) +{ + ErlDrvSizeT qsize, low; + int resume_procs = 0; + + ASSERT(bpq); + ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(pp)); + + erts_port_task_sched_lock(&pp->sched); + qsize = (ErlDrvSizeT) erts_smp_atomic_read_nob(&bpq->size); + low = (ErlDrvSizeT) erts_smp_atomic_read_nob(&bpq->low); + if (qsize < low) { + erts_aint32_t mask = ~(ERTS_PTS_FLG_CHK_UNSET_BUSY_PORT_Q + | ERTS_PTS_FLG_BUSY_PORT_Q); + flags = erts_smp_atomic32_read_band_relb(&pp->sched.flags, mask); + if ((flags & ERTS_PTS_FLGS_BUSY) == ERTS_PTS_FLG_BUSY_PORT_Q) + resume_procs = 1; + } + else if (flags & ERTS_PTS_FLG_CHK_UNSET_BUSY_PORT_Q) { + flags = erts_smp_atomic32_read_band_relb(&pp->sched.flags, + ~ERTS_PTS_FLG_CHK_UNSET_BUSY_PORT_Q); + flags &= ~ERTS_PTS_FLG_CHK_UNSET_BUSY_PORT_Q; + } + erts_port_task_sched_unlock(&pp->sched); + if (resume_procs) + erts_port_resume_procs(pp); + + return flags; +} + +static ERTS_INLINE void +aborted_proc2port_data(Port *pp, ErlDrvSizeT size) +{ + ErtsPortTaskBusyPortQ *bpq; + erts_aint32_t flags; + ErlDrvSizeT qsz; + + ASSERT(pp->sched.taskq.bpq); + + if (size == 0) + return; + + bpq = pp->sched.taskq.bpq; + + qsz = (ErlDrvSizeT) erts_smp_atomic_add_read_acqb(&bpq->size, + (erts_aint_t) -size); + ASSERT(qsz + size > qsz); + flags = erts_smp_atomic32_read_nob(&pp->sched.flags); + ASSERT(pp->sched.taskq.bpq); + if ((flags & (ERTS_PTS_FLG_CHK_UNSET_BUSY_PORT_Q + | ERTS_PTS_FLG_BUSY_PORT_Q)) != ERTS_PTS_FLG_BUSY_PORT_Q) + return; + if (qsz < (ErlDrvSizeT) erts_smp_atomic_read_nob(&bpq->low)) + erts_smp_atomic32_read_bor_nob(&pp->sched.flags, + ERTS_PTS_FLG_CHK_UNSET_BUSY_PORT_Q); +} + +static ERTS_INLINE void +dequeued_proc2port_data(Port *pp, ErlDrvSizeT size) +{ + ErtsPortTaskBusyPortQ *bpq; + erts_aint32_t flags; + ErlDrvSizeT qsz; + + ASSERT(pp->sched.taskq.bpq); + + if (size == 0) + return; + + bpq = pp->sched.taskq.bpq; + + qsz = (ErlDrvSizeT) erts_smp_atomic_add_read_acqb(&bpq->size, + (erts_aint_t) -size); + ASSERT(qsz + size > qsz); + flags = erts_smp_atomic32_read_nob(&pp->sched.flags); + if (!(flags & ERTS_PTS_FLG_BUSY_PORT_Q)) + return; + if (qsz < (ErlDrvSizeT) erts_smp_atomic_read_acqb(&bpq->low)) + check_unset_busy_port_q(pp, flags, bpq); +} + +static ERTS_INLINE erts_aint32_t +enqueue_proc2port_data(Port *pp, + ErtsProc2PortSigData *sigdp, + erts_aint32_t flags) +{ + ErtsPortTaskBusyPortQ *bpq = pp->sched.taskq.bpq; + if (sigdp && bpq) { + ErlDrvSizeT size = erts_proc2port_sig_command_data_size(sigdp); + if (size) { + erts_aint_t asize = erts_smp_atomic_add_read_acqb(&bpq->size, + (erts_aint_t) size); + ErlDrvSizeT qsz = (ErlDrvSizeT) asize; + + ASSERT(qsz - size < qsz); + + if (!(flags & ERTS_PTS_FLG_BUSY_PORT_Q) && qsz > bpq->high) { + flags = erts_smp_atomic32_read_bor_acqb(&pp->sched.flags, + ERTS_PTS_FLG_BUSY_PORT_Q); + flags |= ERTS_PTS_FLG_BUSY_PORT_Q; + qsz = (ErlDrvSizeT) erts_smp_atomic_read_acqb(&bpq->size); + if (qsz < (ErlDrvSizeT) erts_smp_atomic_read_nob(&bpq->low)) { + flags = (erts_smp_atomic32_read_bor_relb( + &pp->sched.flags, + ERTS_PTS_FLG_CHK_UNSET_BUSY_PORT_Q)); + flags |= ERTS_PTS_FLG_CHK_UNSET_BUSY_PORT_Q; + } + } + ASSERT(!(flags & ERTS_PTS_FLG_EXIT)); + } + } + return flags; +} + +/* + * erl_drv_busy_msgq_limits() is called by drivers either reading or + * writing the limits. + * + * A limit of zero is interpreted as a read only request (using a + * limit of zero would not be useful). Other values are interpreted + * as a write-read request. + */ + +void +erl_drv_busy_msgq_limits(ErlDrvPort dport, ErlDrvSizeT *lowp, ErlDrvSizeT *highp) +{ + Port *pp = erts_drvport2port(dport); + ErtsPortTaskBusyPortQ *bpq; + int written = 0, resume_procs = 0; + ErlDrvSizeT low, high; + + if (pp == ERTS_INVALID_ERL_DRV_PORT || !(bpq = pp->sched.taskq.bpq)) { + if (lowp) + *lowp = ERL_DRV_BUSY_MSGQ_DISABLED; + if (highp) + *highp = ERL_DRV_BUSY_MSGQ_DISABLED; + return; + } + + low = lowp ? *lowp : 0; + high = highp ? *highp : 0; + + erts_port_task_sched_lock(&pp->sched); + + if (low == ERL_DRV_BUSY_MSGQ_DISABLED + || high == ERL_DRV_BUSY_MSGQ_DISABLED) { + /* Disable busy msgq feature */ + erts_aint32_t flags; + pp->sched.taskq.bpq = NULL; + flags = ~(ERTS_PTS_FLG_BUSY_PORT_Q|ERTS_PTS_FLG_CHK_UNSET_BUSY_PORT_Q); + flags = erts_smp_atomic32_read_band_acqb(&pp->sched.flags, flags); + if ((flags & ERTS_PTS_FLGS_BUSY) == ERTS_PTS_FLG_BUSY_PORT_Q) + resume_procs = 1; + } + else { + + if (!low) + low = (ErlDrvSizeT) erts_smp_atomic_read_nob(&bpq->low); + else { + if (bpq->high < low) + bpq->high = low; + erts_smp_atomic_set_relb(&bpq->low, (erts_aint_t) low); + written = 1; + } + + if (!high) + high = bpq->high; + else { + if (low > high) { + low = high; + erts_smp_atomic_set_relb(&bpq->low, (erts_aint_t) low); + } + bpq->high = high; + written = 1; + } + + if (written) { + ErlDrvSizeT size = (ErlDrvSizeT) erts_smp_atomic_read_nob(&bpq->size); + if (size > high) + erts_smp_atomic32_read_bor_relb(&pp->sched.flags, + ERTS_PTS_FLG_BUSY_PORT_Q); + else if (size < low) + erts_smp_atomic32_read_bor_relb(&pp->sched.flags, + ERTS_PTS_FLG_CHK_UNSET_BUSY_PORT_Q); + } + } + + erts_port_task_sched_unlock(&pp->sched); + + if (resume_procs) + erts_port_resume_procs(pp); + if (lowp) + *lowp = low; + if (highp) + *highp = high; +} + +/* + * No-suspend handles. + */ + +#ifdef ERTS_SMP +static void +free_port_task_handle_list(void *vpthlp) +{ + erts_free(ERTS_ALC_T_PT_HNDL_LIST, vpthlp); +} +#endif + +static void +schedule_port_task_handle_list_free(ErtsPortTaskHandleList *pthlp) +{ +#ifdef ERTS_SMP + erts_schedule_thr_prgr_later_cleanup_op(free_port_task_handle_list, + (void *) pthlp, + &pthlp->u.release, + sizeof(ErtsPortTaskHandleList)); +#else + erts_free(ERTS_ALC_T_PT_HNDL_LIST, pthlp); +#endif +} + +static ERTS_INLINE void +abort_nosuspend_task(Port *pp, + ErtsPortTaskType type, + ErtsPortTaskTypeData *tdp, + int bpq_data) +{ + + ASSERT(type == ERTS_PORT_TASK_PROC_SIG); + + if (!bpq_data) + tdp->psig.callback(NULL, + ERTS_PORT_SFLG_INVALID, + ERTS_PROC2PORT_SIG_ABORT_NOSUSPEND, + &tdp->psig.data); + else { + ErlDrvSizeT size = erts_proc2port_sig_command_data_size(&tdp->psig.data); + tdp->psig.callback(NULL, + ERTS_PORT_SFLG_INVALID, + ERTS_PROC2PORT_SIG_ABORT_NOSUSPEND, + &tdp->psig.data); + aborted_proc2port_data(pp, size); + } +} + +static ErtsPortTaskHandleList * +get_free_nosuspend_handles(Port *pp) +{ + ErtsPortTaskHandleList *nshp, *last_nshp = NULL; + + ERTS_SMP_LC_ASSERT(erts_port_task_sched_lock_is_locked(&pp->sched)); + + nshp = pp->sched.taskq.local.busy.nosuspend; + + while (nshp && !erts_port_task_is_scheduled(&nshp->handle)) { + last_nshp = nshp; + nshp = nshp->u.next; + } + + if (!last_nshp) + nshp = NULL; + else { + nshp = pp->sched.taskq.local.busy.nosuspend; + pp->sched.taskq.local.busy.nosuspend = last_nshp->u.next; + last_nshp->u.next = NULL; + if (!pp->sched.taskq.local.busy.nosuspend) + erts_smp_atomic32_read_band_nob(&pp->sched.flags, + ~ERTS_PTS_FLG_HAVE_NS_TASKS); + } + return nshp; +} + +static void +free_nosuspend_handles(ErtsPortTaskHandleList *free_nshp) +{ + while (free_nshp) { + ErtsPortTaskHandleList *nshp = free_nshp; + free_nshp = free_nshp->u.next; + schedule_port_task_handle_list_free(nshp); } } @@ -174,7 +872,6 @@ enqueue_port(ErtsRunQueue *runq, Port *pp) { ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(runq)); pp->sched.next = NULL; - pp->sched.prev = runq->ports.end; if (runq->ports.end) { ASSERT(runq->ports.start); runq->ports.end->sched.next = pp; @@ -184,39 +881,15 @@ enqueue_port(ErtsRunQueue *runq, Port *pp) runq->ports.start = pp; } - runq->ports.info.len++; - if (runq->ports.info.max_len < runq->ports.info.len) - runq->ports.info.max_len = runq->ports.info.len; - runq->len++; - if (runq->max_len < runq->len) - runq->max_len = runq->len; runq->ports.end = pp; ASSERT(runq->ports.start && runq->ports.end); -} -static ERTS_INLINE void -dequeue_port(ErtsRunQueue *runq, Port *pp) -{ - ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(runq)); - if (pp->sched.next) - pp->sched.next->sched.prev = pp->sched.prev; - else { - ASSERT(runq->ports.end == pp); - runq->ports.end = pp->sched.prev; - } - if (pp->sched.prev) - pp->sched.prev->sched.next = pp->sched.next; - else { - ASSERT(runq->ports.start == pp); - runq->ports.start = pp->sched.next; - } + erts_smp_inc_runq_len(runq, &runq->ports.info, ERTS_PORT_PRIO_LEVEL); - ASSERT(runq->ports.info.len > 0); - runq->ports.info.len--; - ASSERT(runq->len > 0); - runq->len--; - ASSERT(runq->ports.start || !runq->ports.end); - ASSERT(runq->ports.end || !runq->ports.start); +#ifdef ERTS_SMP + if (runq->halt_in_progress) + erts_non_empty_runq(runq); +#endif } static ERTS_INLINE Port * @@ -229,16 +902,11 @@ pop_port(ErtsRunQueue *runq) } else { runq->ports.start = runq->ports.start->sched.next; - if (runq->ports.start) - runq->ports.start->sched.prev = NULL; - else { + if (!runq->ports.start) { ASSERT(runq->ports.end == pp); runq->ports.end = NULL; } - ASSERT(runq->ports.info.len > 0); - runq->ports.info.len--; - ASSERT(runq->len > 0); - runq->len--; + erts_smp_dec_runq_len(runq, &runq->ports.info, ERTS_PORT_PRIO_LEVEL); } ASSERT(runq->ports.start || !runq->ports.end); @@ -246,294 +914,447 @@ pop_port(ErtsRunQueue *runq) return pp; } +/* + * Task queue operations + */ -#ifdef HARD_DEBUG +static ERTS_INLINE int +enqueue_task(Port *pp, + ErtsPortTask *ptp, + ErtsProc2PortSigData *sigdp, + ErtsPortTaskHandleList *ns_pthlp, + erts_aint32_t *flagsp) -static void -check_port_queue(ErtsRunQueue *runq, Port *chk_pp, int inq) { - Port *pp; - Port *last_pp; - Port *first_pp = runq->ports.start; - int no_forward = 0, no_backward = 0; - int found_forward = 0, found_backward = 0; - if (!first_pp) { - ASSERT(!runq->ports.end); - } + int res; + erts_aint32_t fail_flags = ERTS_PTS_FLG_EXIT; + erts_aint32_t flags; + ptp->u.alive.next = NULL; + if (ns_pthlp) + fail_flags |= ERTS_PTS_FLG_BUSY_PORT; + erts_port_task_sched_lock(&pp->sched); + flags = erts_smp_atomic32_read_nob(&pp->sched.flags); + if (flags & fail_flags) + res = 0; else { - ASSERT(!first_pp->sched.prev); - for (pp = first_pp; pp; pp = pp->sched.next) { - ASSERT(pp->sched.taskq); - if (pp->sched.taskq->first) - no_forward++; - if (chk_pp == pp) - found_forward = 1; - if (!pp->sched.prev) { - ASSERT(first_pp == pp); - } - if (!pp->sched.next) { - ASSERT(runq->ports.end == pp); - last_pp = pp; - } - } - for (pp = last_pp; pp; pp = pp->sched.prev) { - ASSERT(pp->sched.taskq); - if (pp->sched.taskq->last) - no_backward++; - if (chk_pp == pp) - found_backward = 1; - if (!pp->sched.prev) { - ASSERT(first_pp == pp); - } - if (!pp->sched.next) { - ASSERT(runq->ports.end == pp); - } - check_task_queue(pp->sched.taskq, NULL, 0); + if (ns_pthlp) { + ns_pthlp->u.next = pp->sched.taskq.local.busy.nosuspend; + pp->sched.taskq.local.busy.nosuspend = ns_pthlp; } - ASSERT(no_forward == no_backward); - } - ASSERT(no_forward == runq->ports.info.len); - if (chk_pp) { - if (chk_pp->sched.taskq || chk_pp->sched.exe_taskq) { - ASSERT(chk_pp->sched.taskq != chk_pp->sched.exe_taskq); - } - ASSERT(!chk_pp->sched.taskq || chk_pp->sched.taskq->first); - if (inq < 0) - inq = chk_pp->sched.taskq && !chk_pp->sched.exe_taskq; - if (inq) { - ASSERT(found_forward && found_backward); + if (pp->sched.taskq.in.last) { + ASSERT(pp->sched.taskq.in.first); + ASSERT(!pp->sched.taskq.in.last->u.alive.next); + + pp->sched.taskq.in.last->u.alive.next = ptp; } else { - ASSERT(!found_forward && !found_backward); - } - } -} - -#endif - -/* - * Task queue operations - */ + ASSERT(!pp->sched.taskq.in.first); -static ERTS_INLINE ErtsPortTaskQueue * -port_taskq_init(ErtsPortTaskQueue *ptqp, Port *pp) -{ - if (ptqp) { - ptqp->first = NULL; - ptqp->last = NULL; - ptqp->port = pp; + pp->sched.taskq.in.first = ptp; + } + pp->sched.taskq.in.last = ptp; + flags = enqueue_proc2port_data(pp, sigdp, flags); + res = 1; } - return ptqp; + erts_port_task_sched_unlock(&pp->sched); + *flagsp = flags; + return res; } static ERTS_INLINE void -enqueue_task(ErtsPortTaskQueue *ptqp, ErtsPortTask *ptp) +prepare_exec(Port *pp, ErtsPortTask **execqp, int *processing_busy_q_p) { - ERTS_PT_CHK_NOT_IN_TASKQ(ptqp, ptp); - ptp->next = NULL; - ptp->prev = ptqp->last; - ptp->queue = ptqp; - if (ptqp->last) { - ASSERT(ptqp->first); - ptqp->last->next = ptp; + erts_aint32_t act = erts_smp_atomic32_read_nob(&pp->sched.flags); + + if (!pp->sched.taskq.local.busy.first || (act & ERTS_PTS_FLG_BUSY_PORT)) { + *execqp = pp->sched.taskq.local.first; + *processing_busy_q_p = 0; } else { - ASSERT(!ptqp->first); - ptqp->first = ptp; + *execqp = pp->sched.taskq.local.busy.first; + *processing_busy_q_p = 1; + } + + ERTS_PT_DBG_CHK_TASK_QS(pp, *execqp, *processing_busy_q_p); + + while (1) { + erts_aint32_t new, exp; + + new = exp = act; + + new &= ~ERTS_PTS_FLG_IN_RUNQ; + new |= ERTS_PTS_FLG_EXEC; + + act = erts_smp_atomic32_cmpxchg_nob(&pp->sched.flags, new, exp); + + ASSERT(act & ERTS_PTS_FLG_IN_RUNQ); + + if (exp == act) + break; } - ptqp->last = ptp; - ERTS_PT_CHK_IN_TASKQ(ptqp, ptp); } -static ERTS_INLINE void -push_task(ErtsPortTaskQueue *ptqp, ErtsPortTask *ptp) +/* finalize_exec() return value != 0 if port should remain active */ +static ERTS_INLINE int +finalize_exec(Port *pp, ErtsPortTask **execq, int processing_busy_q) { - ERTS_PT_CHK_NOT_IN_TASKQ(ptqp, ptp); - ptp->next = ptqp->first; - ptp->prev = NULL; - ptp->queue = ptqp; - if (ptqp->first) { - ASSERT(ptqp->last); - ptqp->first->prev = ptp; - } + erts_aint32_t act; + + if (!processing_busy_q) + pp->sched.taskq.local.first = *execq; else { - ASSERT(!ptqp->last); - ptqp->last = ptp; + pp->sched.taskq.local.busy.first = *execq; + ASSERT(*execq); } - ptqp->first = ptp; - ERTS_PT_CHK_IN_TASKQ(ptqp, ptp); + + ERTS_PT_DBG_CHK_TASK_QS(pp, *execq, processing_busy_q); + + *execq = NULL; + + act = erts_smp_atomic32_read_nob(&pp->sched.flags); + if (act & ERTS_PTS_FLG_CHK_UNSET_BUSY_PORT_Q) + act = check_unset_busy_port_q(pp, act, pp->sched.taskq.bpq); + + while (1) { + erts_aint32_t new, exp; + + new = exp = act; + + new &= ~ERTS_PTS_FLG_EXEC; + if (act & ERTS_PTS_FLG_HAVE_TASKS) + new |= ERTS_PTS_FLG_IN_RUNQ; + + act = erts_smp_atomic32_cmpxchg_relb(&pp->sched.flags, new, exp); + + ASSERT(!(act & ERTS_PTS_FLG_IN_RUNQ)); + + if (exp == act) + break; + } + + return (act & ERTS_PTS_FLG_HAVE_TASKS) != 0; } -static ERTS_INLINE void -dequeue_task(ErtsPortTask *ptp) +static ERTS_INLINE erts_aint32_t +select_queue_for_exec(Port *pp, ErtsPortTask **execqp, int *processing_busy_q_p) { - ASSERT(ptp); - ASSERT(ptp->queue); - ERTS_PT_CHK_IN_TASKQ(ptp->queue, ptp); - if (ptp->next) - ptp->next->prev = ptp->prev; - else { - ASSERT(ptp->queue->last == ptp); - ptp->queue->last = ptp->prev; + erts_aint32_t flags = erts_smp_atomic32_read_nob(&pp->sched.flags); + + if (flags & ERTS_PTS_FLG_CHK_UNSET_BUSY_PORT_Q) + flags = check_unset_busy_port_q(pp, flags, pp->sched.taskq.bpq); + + ERTS_PT_DBG_CHK_TASK_QS(pp, *execqp, *processing_busy_q_p); + + if (flags & ERTS_PTS_FLG_BUSY_PORT) { + if (*processing_busy_q_p) { + ErtsPortTask *ptp; + + ptp = pp->sched.taskq.local.busy.first = *execqp; + if (!ptp) + pp->sched.taskq.local.busy.last = NULL; + else if (!(ptp->u.alive.flags & ERTS_PT_FLG_WAIT_BUSY)) + no_sig_dep_move_from_busyq(pp); + + *execqp = pp->sched.taskq.local.first; + *processing_busy_q_p = 0; + + ERTS_PT_DBG_CHK_TASK_QS(pp, *execqp, *processing_busy_q_p); + } + + return flags; } - if (ptp->prev) - ptp->prev->next = ptp->next; - else { - ASSERT(ptp->queue->first == ptp); - ptp->queue->first = ptp->next; + + /* Not busy */ + + if (!*processing_busy_q_p && pp->sched.taskq.local.busy.first) { + pp->sched.taskq.local.first = *execqp; + *execqp = pp->sched.taskq.local.busy.first; + *processing_busy_q_p = 1; + + ERTS_PT_DBG_CHK_TASK_QS(pp, *execqp, *processing_busy_q_p); } - ASSERT(ptp->queue->first || !ptp->queue->last); - ASSERT(ptp->queue->last || !ptp->queue->first); - ERTS_PT_CHK_NOT_IN_TASKQ(ptp->queue, ptp); + return flags; } -static ERTS_INLINE ErtsPortTask * -pop_task(ErtsPortTaskQueue *ptqp) +/* + * check_task_for_exec() returns a value !0 if the task + * is ok to execute; otherwise 0. + */ +static ERTS_INLINE int +check_task_for_exec(Port *pp, + erts_aint32_t flags, + ErtsPortTask **execqp, + int *processing_busy_q_p, + ErtsPortTask *ptp) { - ErtsPortTask *ptp = ptqp->first; - if (!ptp) { - ASSERT(!ptqp->last); + + if (!*processing_busy_q_p) { + /* Processing normal queue */ + + ERTS_PT_DBG_CHK_TASK_QS(pp, ptp, *processing_busy_q_p); + + if ((flags & ERTS_PTS_FLG_BUSY_PORT) + && (ptp->u.alive.flags & ERTS_PT_FLG_WAIT_BUSY)) { + + busy_wait_move_to_busy_queue(pp, ptp); + ERTS_PT_DBG_CHK_TASK_QS(pp, *execqp, *processing_busy_q_p); + + return 0; + } + + if (pp->sched.taskq.local.busy.last + && (ptp->u.alive.flags & ERTS_PT_FLG_SIG_DEP)) { + + int res = !check_sig_dep_move_to_busy_queue(pp, ptp); + ERTS_PT_DBG_CHK_TASK_QS(pp, *execqp, *processing_busy_q_p); + + return res; + } + } else { - ERTS_PT_CHK_IN_TASKQ(ptqp, ptp); - ASSERT(!ptp->prev); - ptqp->first = ptp->next; - if (ptqp->first) - ptqp->first->prev = NULL; - else { - ASSERT(ptqp->last == ptp); - ptqp->last = NULL; + /* Processing busy queue */ + + ASSERT(!(flags & ERTS_PTS_FLG_BUSY_PORT)); + + ERTS_PT_DBG_CHK_TASK_QS(pp, ptp, *processing_busy_q_p); + + popped_from_busy_queue(pp, ptp, !*execqp); + + if (!*execqp) { + *execqp = pp->sched.taskq.local.first; + *processing_busy_q_p = 0; } - ASSERT(ptp->queue->first || !ptp->queue->last); - ASSERT(ptp->queue->last || !ptp->queue->first); + + ERTS_PT_DBG_CHK_TASK_QS(pp, *execqp, *processing_busy_q_p); + } - ERTS_PT_CHK_NOT_IN_TASKQ(ptqp, ptp); - return ptp; + + return 1; } -#ifdef HARD_DEBUG +static ErtsPortTask * +fetch_in_queue(Port *pp, ErtsPortTask **execqp) +{ + ErtsPortTask *ptp; + ErtsPortTaskHandleList *free_nshp = NULL; -static void -check_task_queue(ErtsPortTaskQueue *ptqp, - ErtsPortTask *chk_ptp, - int inq) + erts_port_task_sched_lock(&pp->sched); + + ptp = pp->sched.taskq.in.first; + pp->sched.taskq.in.first = NULL; + pp->sched.taskq.in.last = NULL; + if (ptp) + *execqp = ptp->u.alive.next; + else + erts_smp_atomic32_read_band_nob(&pp->sched.flags, + ~ERTS_PTS_FLG_HAVE_TASKS); + + + if (pp->sched.taskq.local.busy.nosuspend) + free_nshp = get_free_nosuspend_handles(pp); + + erts_port_task_sched_unlock(&pp->sched); + + if (free_nshp) + free_nosuspend_handles(free_nshp); + + return ptp; +} + +static ERTS_INLINE ErtsPortTask * +select_task_for_exec(Port *pp, + ErtsPortTask **execqp, + int *processing_busy_q_p) { ErtsPortTask *ptp; - ErtsPortTask *last_ptp; - ErtsPortTask *first_ptp = ptqp->first; - int found_forward = 0, found_backward = 0; - if (!first_ptp) { - ASSERT(!ptqp->last); - } - else { - ASSERT(!first_ptp->prev); - for (ptp = first_ptp; ptp; ptp = ptp->next) { - ASSERT(ptp->queue == ptqp); - if (chk_ptp == ptp) - found_forward = 1; - if (!ptp->prev) { - ASSERT(first_ptp == ptp); - } - if (!ptp->next) { - ASSERT(ptqp->last == ptp); - last_ptp = ptp; - } - } - for (ptp = last_ptp; ptp; ptp = ptp->prev) { - ASSERT(ptp->queue == ptqp); - if (chk_ptp == ptp) - found_backward = 1; - if (!ptp->prev) { - ASSERT(first_ptp == ptp); - } - if (!ptp->next) { - ASSERT(ptqp->last == ptp); - } - } - } - if (chk_ptp) { - if (inq) { - ASSERT(found_forward && found_backward); - } + erts_aint32_t flags; + + flags = select_queue_for_exec(pp, execqp, processing_busy_q_p); + + while (1) { + ptp = *execqp; + if (ptp) + *execqp = ptp->u.alive.next; else { - ASSERT(!found_forward && !found_backward); + ptp = fetch_in_queue(pp, execqp); + if (!ptp) + return NULL; } + if (check_task_for_exec(pp, flags, execqp, processing_busy_q_p, ptp)) + return ptp; } } -#endif + +/* + * Cut time slice + */ + +int +erl_drv_consume_timeslice(ErlDrvPort dprt, int percent) +{ + Port *pp = erts_drvport2port(dprt); + if (pp == ERTS_INVALID_ERL_DRV_PORT) + return -1; + if (percent < 1) + percent = 1; + else if (100 < percent) + percent = 100; + pp->reds += percent*((CONTEXT_REDS+99)/100); + if (pp->reds < CONTEXT_REDS) + return 0; + pp->reds = CONTEXT_REDS; + return 1; +} + +void +erts_port_task_tmp_handle_detach(ErtsPortTaskHandle *pthp) +{ + ERTS_SMP_LC_ASSERT(erts_thr_progress_lc_is_delaying()); + reset_port_task_handle(pthp); +} /* * Abort a scheduled task. */ int -erts_port_task_abort(Eterm id, ErtsPortTaskHandle *pthp) +erts_port_task_abort(ErtsPortTaskHandle *pthp) { - ErtsRunQueue *runq; - ErtsPortTaskQueue *ptqp; + int res; ErtsPortTask *ptp; - Port *pp; - int port_is_dequeued = 0; - - pp = &erts_port[internal_port_index(id)]; - runq = erts_port_runq(pp); +#ifdef ERTS_SMP + ErtsThrPrgrDelayHandle dhndl = erts_thr_progress_unmanaged_delay(); +#endif ptp = handle2task(pthp); + if (!ptp) + res = -1; + else { + erts_aint32_t old_state; + +#ifdef DEBUG + ErtsPortTaskHandle *saved_pthp = ptp->u.alive.handle; + ERTS_SMP_READ_MEMORY_BARRIER; + old_state = erts_smp_atomic32_read_nob(&ptp->state); + if (old_state == ERTS_PT_STATE_SCHEDULED) { + ASSERT(!saved_pthp || saved_pthp == pthp); + } +#endif - if (!ptp) { - erts_smp_runq_unlock(runq); - return 1; + old_state = erts_smp_atomic32_cmpxchg_nob(&ptp->state, + ERTS_PT_STATE_ABORTED, + ERTS_PT_STATE_SCHEDULED); + if (old_state != ERTS_PT_STATE_SCHEDULED) + res = - 1; /* Task already aborted, executing, or executed */ + else { + + reset_port_task_handle(pthp); + + switch (ptp->type) { + case ERTS_PORT_TASK_INPUT: + case ERTS_PORT_TASK_OUTPUT: + case ERTS_PORT_TASK_EVENT: + ASSERT(erts_smp_atomic_read_nob( + &erts_port_task_outstanding_io_tasks) > 0); + erts_smp_atomic_dec_relb(&erts_port_task_outstanding_io_tasks); + break; + default: + break; + } + + res = 0; + } } - ASSERT(ptp->handle == pthp); - ptqp = ptp->queue; - ASSERT(pp == ptqp->port); +#ifdef ERTS_SMP + erts_thr_progress_unmanaged_continue(dhndl); +#endif - ERTS_PT_CHK_PRES_PORTQ(runq, pp); - ASSERT(ptqp); - ASSERT(ptqp->first); + return res; +} + +void +erts_port_task_abort_nosuspend_tasks(Port *pp) +{ + ErtsPortTaskHandleList *abort_list; +#ifdef ERTS_SMP + ErtsThrPrgrDelayHandle dhndl = ERTS_THR_PRGR_DHANDLE_INVALID; +#endif - dequeue_task(ptp); - reset_handle(ptp); + erts_port_task_sched_lock(&pp->sched); + erts_smp_atomic32_read_band_nob(&pp->sched.flags, + ~ERTS_PTS_FLG_HAVE_NS_TASKS); + abort_list = pp->sched.taskq.local.busy.nosuspend; + pp->sched.taskq.local.busy.nosuspend = NULL; + erts_port_task_sched_unlock(&pp->sched); - switch (ptp->type) { - case ERTS_PORT_TASK_INPUT: - case ERTS_PORT_TASK_OUTPUT: - case ERTS_PORT_TASK_EVENT: - ASSERT(erts_smp_atomic_read_nob(&erts_port_task_outstanding_io_tasks) > 0); - erts_smp_atomic_dec_relb(&erts_port_task_outstanding_io_tasks); - break; - default: - break; - } + while (abort_list) { +#ifdef DEBUG + ErtsPortTaskHandle *saved_pthp; +#endif + ErtsPortTaskType type; + ErtsPortTaskTypeData td; + ErtsPortTaskHandle *pthp; + ErtsPortTask *ptp; + ErtsPortTaskHandleList *pthlp; + erts_aint32_t old_state; - ASSERT(ptqp == pp->sched.taskq || ptqp == pp->sched.exe_taskq); + pthlp = abort_list; + abort_list = pthlp->u.next; - if (ptqp->first || pp->sched.taskq != ptqp) - ptqp = NULL; - else { - pp->sched.taskq = NULL; - if (!pp->sched.exe_taskq) { - dequeue_port(runq, pp); - ERTS_PORT_NOT_IN_RUNQ(pp); - port_is_dequeued = 1; +#ifdef ERTS_SMP + if (dhndl != ERTS_THR_PRGR_DHANDLE_MANAGED) + dhndl = erts_thr_progress_unmanaged_delay(); +#endif + + pthp = &pthlp->handle; + ptp = handle2task(pthp); + if (!ptp) { +#ifdef ERTS_SMP + if (dhndl != ERTS_THR_PRGR_DHANDLE_MANAGED) + erts_thr_progress_unmanaged_continue(dhndl); +#endif + schedule_port_task_handle_list_free(pthlp); + continue; } - } - ERTS_PT_CHK_PRES_PORTQ(runq, pp); +#ifdef DEBUG + saved_pthp = ptp->u.alive.handle; + ERTS_SMP_READ_MEMORY_BARRIER; + old_state = erts_smp_atomic32_read_nob(&ptp->state); + if (old_state == ERTS_PT_STATE_SCHEDULED) { + ASSERT(saved_pthp == pthp); + } +#endif - erts_smp_runq_unlock(runq); - - if (erts_system_profile_flags.runnable_ports && port_is_dequeued) { - profile_runnable_port(pp, am_inactive); - } + old_state = erts_smp_atomic32_cmpxchg_nob(&ptp->state, + ERTS_PT_STATE_ABORTED, + ERTS_PT_STATE_SCHEDULED); + if (old_state != ERTS_PT_STATE_SCHEDULED) { + /* Task already aborted, executing, or executed */ +#ifdef ERTS_SMP + if (dhndl != ERTS_THR_PRGR_DHANDLE_MANAGED) + erts_thr_progress_unmanaged_continue(dhndl); +#endif + schedule_port_task_handle_list_free(pthlp); + continue; + } - port_task_free(ptp); - if (ptqp) - port_taskq_free(ptqp); + reset_port_task_handle(pthp); - return 0; + type = ptp->type; + td = ptp->u.alive.td; + +#ifdef ERTS_SMP + if (dhndl != ERTS_THR_PRGR_DHANDLE_MANAGED) + erts_thr_progress_unmanaged_continue(dhndl); +#endif + schedule_port_task_handle_list_free(pthlp); + + abort_nosuspend_task(pp, type, &td, pp->sched.taskq.bpq != NULL); + } } /* @@ -544,258 +1365,266 @@ int erts_port_task_schedule(Eterm id, ErtsPortTaskHandle *pthp, ErtsPortTaskType type, - ErlDrvEvent event, - ErlDrvEventData event_data) + ...) { + ErtsProc2PortSigData *sigdp = NULL; + ErtsPortTaskHandleList *ns_pthlp = NULL; +#ifdef ERTS_SMP + ErtsRunQueue *xrunq; + ErtsThrPrgrDelayHandle dhndl; +#endif ErtsRunQueue *runq; Port *pp; - ErtsPortTask *ptp; - int enq_port = 0; - - /* - * NOTE: We might not have the port lock here. We are only - * allowed to access the 'sched', 'tab_status', - * and 'id' fields of the port struct while - * tasks_lock is held. - */ + ErtsPortTask *ptp = NULL; + erts_aint32_t act, add_flags; if (pthp && erts_port_task_is_scheduled(pthp)) { ASSERT(0); - erts_port_task_abort(id, pthp); + erts_port_task_abort(pthp); } - ptp = port_task_alloc(); - ASSERT(is_internal_port(id)); - pp = &erts_port[internal_port_index(id)]; - runq = erts_port_runq(pp); - if (!runq || ERTS_PORT_TASK_INVALID_PORT(pp, id)) { - if (runq) - erts_smp_runq_unlock(runq); - return -1; - } - - ASSERT(!erts_port_task_is_scheduled(pthp)); +#ifdef ERTS_SMP + dhndl = erts_thr_progress_unmanaged_delay(); +#endif - ERTS_PT_CHK_PRES_PORTQ(runq, pp); + pp = erts_port_lookup_raw(id); - if (!pp->sched.taskq && !pp->sched.exe_taskq) { #ifdef ERTS_SMP - ErtsRunQueue *xrunq = erts_check_emigration_need(runq, ERTS_PORT_PRIO_LEVEL); - ERTS_SMP_LC_ASSERT(runq != xrunq); - if (runq != (ErtsRunQueue *) erts_smp_atomic_read_nob(&pp->run_queue)) { - /* - * Someone else migrated this port while we had the run-queue - * lock on runq unlocked in erts_check_emigration_need(). Respect - * that migration decision... - */ - erts_smp_runq_unlock(runq); - if (xrunq) - erts_smp_runq_unlock(xrunq); - runq = erts_port_runq(pp); - } - else if (xrunq) { - /* Emigrate port... */ - erts_smp_atomic_set_nob(&pp->run_queue, (erts_aint_t) xrunq); - erts_smp_runq_unlock(runq); - runq = xrunq; - } - enq_port = !pp->sched.taskq && !pp->sched.exe_taskq; -#else - enq_port = 1; -#endif + if (dhndl != ERTS_THR_PRGR_DHANDLE_MANAGED) { + if (pp) + erts_port_inc_refc(pp); + erts_thr_progress_unmanaged_continue(dhndl); } +#endif - ASSERT(!enq_port || !(runq->flags & ERTS_RUNQ_FLG_SUSPENDED)); + if (!pp) + goto fail; - if (!pp->sched.taskq) - pp->sched.taskq = port_taskq_init(port_taskq_alloc(), pp); + if (type != ERTS_PORT_TASK_PROC_SIG) { + ptp = port_task_alloc(); - ASSERT(ptp); + ptp->type = type; + ptp->u.alive.flags = 0; - ptp->type = type; - ptp->event = event; - ptp->event_data = event_data; + erts_smp_atomic32_init_nob(&ptp->state, ERTS_PT_STATE_SCHEDULED); - set_handle(ptp, pthp); + set_handle(ptp, pthp); + } switch (type) { - case ERTS_PORT_TASK_FREE: - erl_exit(ERTS_ABORT_EXIT, - "erts_port_task_schedule(): Cannot schedule free task\n"); - break; case ERTS_PORT_TASK_INPUT: - case ERTS_PORT_TASK_OUTPUT: - case ERTS_PORT_TASK_EVENT: + case ERTS_PORT_TASK_OUTPUT: { + va_list argp; + va_start(argp, type); + ptp->u.alive.td.io.event = va_arg(argp, ErlDrvEvent); + va_end(argp); + erts_smp_atomic_inc_relb(&erts_port_task_outstanding_io_tasks); + break; + } + case ERTS_PORT_TASK_EVENT: { + va_list argp; + va_start(argp, type); + ptp->u.alive.td.io.event = va_arg(argp, ErlDrvEvent); + ptp->u.alive.td.io.event_data = va_arg(argp, ErlDrvEventData); + va_end(argp); erts_smp_atomic_inc_relb(&erts_port_task_outstanding_io_tasks); - /* Fall through... */ + break; + } + case ERTS_PORT_TASK_PROC_SIG: { + va_list argp; + va_start(argp, type); + sigdp = va_arg(argp, ErtsProc2PortSigData *); + ptp = p2p_sig_data_to_task(sigdp); + ptp->u.alive.td.psig.callback = va_arg(argp, ErtsProc2PortSigCallback); + ptp->u.alive.flags |= va_arg(argp, int); + va_end(argp); + if (!(ptp->u.alive.flags & ERTS_PT_FLG_NOSUSPEND)) + set_tmp_handle(ptp, pthp); + else { + ns_pthlp = erts_alloc(ERTS_ALC_T_PT_HNDL_LIST, + sizeof(ErtsPortTaskHandleList)); + set_handle(ptp, &ns_pthlp->handle); + } + break; + } default: - enqueue_task(pp->sched.taskq, ptp); break; } -#ifndef ERTS_SMP - /* - * When (!enq_port && !pp->sched.exe_taskq) is true in the smp case, - * the port might not be in the run queue. If this is the case, another - * thread is in the process of enqueueing the port. This very seldom - * occur, but do occur and is a valid scenario. Debug info showing this - * enqueue in progress must be introduced before we can enable (modified - * versions of these) assertions in the smp case again. - */ -#if defined(HARD_DEBUG) - if (pp->sched.exe_taskq || enq_port) - ERTS_PT_CHK_NOT_IN_PORTQ(runq, pp); - else - ERTS_PT_CHK_IN_PORTQ(runq, pp); -#elif defined(DEBUG) - if (!enq_port && !pp->sched.exe_taskq) { - /* We should be in port run q */ - ASSERT(pp->sched.prev || runq->ports.start == pp); + if (!enqueue_task(pp, ptp, sigdp, ns_pthlp, &act)) { + reset_handle(ptp); + if (ns_pthlp && !(act & ERTS_PTS_FLG_EXIT)) + goto abort_nosuspend; + else + goto fail; } -#endif -#endif - if (!enq_port) { - ERTS_PT_CHK_PRES_PORTQ(runq, pp); - erts_smp_runq_unlock(runq); - } - else { - enqueue_port(runq, pp); - ERTS_PT_CHK_PRES_PORTQ(runq, pp); - - if (erts_system_profile_flags.runnable_ports) { - profile_runnable_port(pp, am_active); + add_flags = ERTS_PTS_FLG_HAVE_TASKS; + if (ns_pthlp) + add_flags |= ERTS_PTS_FLG_HAVE_NS_TASKS; + + while (1) { + erts_aint32_t new, exp; + + if ((act & add_flags) == add_flags + && (act & (ERTS_PTS_FLG_IN_RUNQ|ERTS_PTS_FLG_EXEC))) + goto done; /* Done */ + + new = exp = act; + new |= add_flags; + if (!(act & (ERTS_PTS_FLG_IN_RUNQ|ERTS_PTS_FLG_EXEC))) + new |= ERTS_PTS_FLG_IN_RUNQ; + + act = erts_smp_atomic32_cmpxchg_relb(&pp->sched.flags, new, exp); + + if (exp == act) { + if (!(act & (ERTS_PTS_FLG_IN_RUNQ|ERTS_PTS_FLG_EXEC))) + break; /* Need to enqueue port */ + goto done; /* Done */ } + if (act & ERTS_PTS_FLG_EXIT) + goto done; /* Died after our task insert... */ + } + + /* Enqueue port on run-queue */ + + runq = erts_port_runq(pp); + if (!runq) + ERTS_INTERNAL_ERROR("Missing run-queue"); + +#ifdef ERTS_SMP + xrunq = erts_check_emigration_need(runq, ERTS_PORT_PRIO_LEVEL); + ERTS_SMP_LC_ASSERT(runq != xrunq); + ERTS_SMP_LC_VERIFY_RQ(runq, pp); + if (xrunq) { + /* Emigrate port ... */ + erts_smp_atomic_set_nob(&pp->run_queue, (erts_aint_t) xrunq); erts_smp_runq_unlock(runq); + runq = erts_port_runq(pp); + if (!runq) + ERTS_INTERNAL_ERROR("Missing run-queue"); + } +#endif - erts_smp_notify_inc_runq(runq); + enqueue_port(runq, pp); + + if (erts_system_profile_flags.runnable_ports) { + profile_runnable_port(pp, am_active); } + + erts_smp_runq_unlock(runq); + + erts_smp_notify_inc_runq(runq); + +done: + +#ifdef ERTS_SMP + if (dhndl != ERTS_THR_PRGR_DHANDLE_MANAGED) + erts_port_dec_refc(pp); +#endif + return 0; + +abort_nosuspend: + +#ifdef ERTS_SMP + if (dhndl != ERTS_THR_PRGR_DHANDLE_MANAGED) + erts_port_dec_refc(pp); +#endif + + abort_nosuspend_task(pp, ptp->type, &ptp->u.alive.td, 0); + + ASSERT(ns_pthlp); + erts_free(ERTS_ALC_T_PT_HNDL_LIST, ns_pthlp); + if (ptp) + port_task_free(ptp); + + return 0; + +fail: + +#ifdef ERTS_SMP + if (dhndl != ERTS_THR_PRGR_DHANDLE_MANAGED) + erts_port_dec_refc(pp); +#endif + + if (ns_pthlp) + erts_free(ERTS_ALC_T_PT_HNDL_LIST, ns_pthlp); + + if (ptp) + port_task_free(ptp); + + return -1; } void erts_port_task_free_port(Port *pp) { + erts_aint32_t flags; ErtsRunQueue *runq; - int port_is_dequeued = 0; ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(pp)); - ASSERT(!(pp->status & ERTS_PORT_SFLGS_DEAD)); + ASSERT(!(erts_atomic32_read_nob(&pp->state) & ERTS_PORT_SFLGS_DEAD)); + runq = erts_port_runq(pp); - ASSERT(runq); - ERTS_PT_CHK_PRES_PORTQ(runq, pp); - if (pp->sched.exe_taskq) { - /* I (this thread) am currently executing this port, free it - when scheduled out... */ - ErtsPortTask *ptp = port_task_alloc(); - erts_smp_port_state_lock(pp); - pp->status &= ~ERTS_PORT_SFLG_CLOSING; - pp->status |= ERTS_PORT_SFLG_FREE_SCHEDULED; - erts_may_save_closed_port(pp); - erts_smp_port_state_unlock(pp); - ERTS_SMP_LC_ASSERT(erts_smp_atomic_read_nob(&pp->refc) > 1); - ptp->type = ERTS_PORT_TASK_FREE; - ptp->event = (ErlDrvEvent) -1; - ptp->event_data = NULL; - set_handle(ptp, NULL); - push_task(pp->sched.exe_taskq, ptp); - ERTS_PT_CHK_PRES_PORTQ(runq, pp); - erts_smp_runq_unlock(runq); - } - else { - ErtsPortTaskQueue *ptqp = pp->sched.taskq; - if (ptqp) { - dequeue_port(runq, pp); - ERTS_PORT_NOT_IN_RUNQ(pp); - port_is_dequeued = 1; - } - erts_smp_port_state_lock(pp); - pp->status &= ~ERTS_PORT_SFLG_CLOSING; - pp->status |= ERTS_PORT_SFLG_FREE_SCHEDULED; - erts_may_save_closed_port(pp); - erts_smp_port_state_unlock(pp); -#ifdef ERTS_SMP - erts_smp_atomic_dec_nob(&pp->refc); /* Not alive */ -#endif - ERTS_SMP_LC_ASSERT(erts_smp_atomic_read_nob(&pp->refc) > 0); /* Lock */ - handle_remaining_tasks(runq, pp); /* May release runq lock */ - ASSERT(!pp->sched.exe_taskq && (!ptqp || !ptqp->first)); - pp->sched.taskq = NULL; - ERTS_PT_CHK_PRES_PORTQ(runq, pp); -#ifndef ERTS_SMP - ASSERT(pp->status & ERTS_PORT_SFLG_PORT_DEBUG); - erts_port_status_set(pp, ERTS_PORT_SFLG_FREE); -#endif - erts_smp_runq_unlock(runq); + if (!runq) + ERTS_INTERNAL_ERROR("Missing run-queue"); + erts_port_task_sched_lock(&pp->sched); + flags = erts_smp_atomic32_read_bor_relb(&pp->sched.flags, + ERTS_PTS_FLG_EXIT); + erts_port_task_sched_unlock(&pp->sched); + erts_atomic32_read_bset_relb(&pp->state, + (ERTS_PORT_SFLG_CONNECTED + | ERTS_PORT_SFLG_EXITING + | ERTS_PORT_SFLG_CLOSING + | ERTS_PORT_SFLG_FREE), + ERTS_PORT_SFLG_FREE); - if (erts_system_profile_flags.runnable_ports && port_is_dequeued) { - profile_runnable_port(pp, am_inactive); - } + erts_smp_runq_unlock(runq); - if (ptqp) - port_taskq_free(ptqp); - } + if (!(flags & (ERTS_PTS_FLG_IN_RUNQ|ERTS_PTS_FLG_EXEC))) + begin_port_cleanup(pp, NULL, NULL); } -typedef struct { - ErtsRunQueue *runq; - int *resp; -} ErtsPortTaskExeBlockData; - /* - * Run all scheduled tasks for the first port in run queue. If - * new tasks appear while running reschedule port (free task is - * an exception; it is always handled instantly). + * Execute scheduled tasks of a port. * * erts_port_task_execute() is called by scheduler threads between - * scheduleing of processes. Sched lock should be held by caller. + * scheduling of processes. Run-queue lock should be held by caller. */ int erts_port_task_execute(ErtsRunQueue *runq, Port **curr_port_pp) { - int port_was_enqueued = 0; Port *pp; - ErtsPortTaskQueue *ptqp; - ErtsPortTask *ptp; + ErtsPortTask *execq; + int processing_busy_q; int res = 0; - int reds = ERTS_PORT_REDS_EXECUTE; + int vreds = 0; + int reds = 0; erts_aint_t io_tasks_executed = 0; int fpe_was_unmasked; + erts_aint32_t state; + int active; + Uint64 start_time = 0; ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(runq)); - ERTS_PT_CHK_PORTQ(runq); - pp = pop_port(runq); if (!pp) { res = 0; goto done; } - ERTS_PORT_NOT_IN_RUNQ(pp); - - *curr_port_pp = pp; - - ASSERT(pp->sched.taskq); - ASSERT(pp->sched.taskq->first); - ptqp = pp->sched.taskq; - pp->sched.taskq = NULL; - - ASSERT(!pp->sched.exe_taskq); - pp->sched.exe_taskq = ptqp; - - if (erts_smp_port_trylock(pp) == EBUSY) { - erts_smp_runq_unlock(runq); - erts_smp_port_lock(pp); - erts_smp_runq_lock(runq); - } - ERTS_SMP_LC_VERIFY_RQ(runq, pp); + erts_smp_runq_unlock(runq); + + *curr_port_pp = pp; + if (erts_sched_stat.enabled) { ErtsSchedulerData *esdp = erts_get_scheduler_data(); Uint old = ERTS_PORT_SCHED_ID(pp, esdp->no); @@ -811,84 +1640,102 @@ erts_port_task_execute(ErtsRunQueue *runq, Port **curr_port_pp) erts_smp_spin_unlock(&erts_sched_stat.lock); } + prepare_exec(pp, &execq, &processing_busy_q); + + erts_smp_port_lock(pp); + /* trace port scheduling, in */ if (IS_TRACED_FL(pp, F_TRACE_SCHED_PORTS)) { trace_sched_ports(pp, am_in); } - ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(pp)); + fpe_was_unmasked = erts_block_fpe(); - ERTS_PT_CHK_PRES_PORTQ(runq, pp); - ptp = pop_task(ptqp); + state = erts_atomic32_read_nob(&pp->state); + pp->reds = ERTS_PORT_REDS_EXECUTE; + goto begin_handle_tasks; - fpe_was_unmasked = erts_block_fpe(); + while (1) { + erts_aint32_t task_state; + ErtsPortTask *ptp; - while (ptp) { - ASSERT(pp->sched.taskq != pp->sched.exe_taskq); + ptp = select_task_for_exec(pp, &execq, &processing_busy_q); + if (!ptp) + break; + + task_state = erts_smp_atomic32_cmpxchg_nob(&ptp->state, + ERTS_PT_STATE_EXECUTING, + ERTS_PT_STATE_SCHEDULED); + if (task_state != ERTS_PT_STATE_SCHEDULED) { + ASSERT(task_state == ERTS_PT_STATE_ABORTED); + goto aborted_port_task; + } reset_handle(ptp); - erts_smp_runq_unlock(runq); + + if (erts_system_monitor_long_schedule != 0) { + start_time = erts_timestamp_millis(); + } ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(pp)); ERTS_SMP_CHK_NO_PROC_LOCKS; ASSERT(pp->drv_ptr); switch (ptp->type) { - case ERTS_PORT_TASK_FREE: /* May be pushed in q at any time */ - reds += ERTS_PORT_REDS_FREE; - erts_smp_runq_lock(runq); - ERTS_SMP_LC_VERIFY_RQ(runq, pp); - - erts_unblock_fpe(fpe_was_unmasked); - ASSERT(pp->status & ERTS_PORT_SFLG_FREE_SCHEDULED); - if (ptqp->first || (pp->sched.taskq && pp->sched.taskq->first)) - handle_remaining_tasks(runq, pp); - ASSERT(!ptqp->first - && (!pp->sched.taskq || !pp->sched.taskq->first)); -#ifdef ERTS_SMP - erts_smp_atomic_dec_nob(&pp->refc); /* Not alive */ - ERTS_SMP_LC_ASSERT(erts_smp_atomic_read_nob(&pp->refc) > 0); /* Lock */ -#else - erts_port_status_bor_set(pp, ERTS_PORT_SFLG_FREE); -#endif - - port_task_free(ptp); - if (pp->sched.taskq) - port_taskq_free(pp->sched.taskq); - pp->sched.taskq = NULL; - - goto tasks_done; case ERTS_PORT_TASK_TIMEOUT: - reds += ERTS_PORT_REDS_TIMEOUT; - if (!(pp->status & ERTS_PORT_SFLGS_DEAD)) { + reds = ERTS_PORT_REDS_TIMEOUT; + if (!(state & ERTS_PORT_SFLGS_DEAD)) { DTRACE_DRIVER(driver_timeout, pp); (*pp->drv_ptr->timeout)((ErlDrvData) pp->drv_data); } break; case ERTS_PORT_TASK_INPUT: - reds += ERTS_PORT_REDS_INPUT; - ASSERT((pp->status & ERTS_PORT_SFLGS_DEAD) == 0); + reds = ERTS_PORT_REDS_INPUT; + ASSERT((state & ERTS_PORT_SFLGS_DEAD) == 0); DTRACE_DRIVER(driver_ready_input, pp); - /* NOTE some windows drivers use ->ready_input for input and output */ - (*pp->drv_ptr->ready_input)((ErlDrvData) pp->drv_data, ptp->event); + /* NOTE some windows/ose drivers use ->ready_input + for input and output */ + (*pp->drv_ptr->ready_input)((ErlDrvData) pp->drv_data, + ptp->u.alive.td.io.event); io_tasks_executed++; break; case ERTS_PORT_TASK_OUTPUT: - reds += ERTS_PORT_REDS_OUTPUT; - ASSERT((pp->status & ERTS_PORT_SFLGS_DEAD) == 0); + reds = ERTS_PORT_REDS_OUTPUT; + ASSERT((state & ERTS_PORT_SFLGS_DEAD) == 0); DTRACE_DRIVER(driver_ready_output, pp); - (*pp->drv_ptr->ready_output)((ErlDrvData) pp->drv_data, ptp->event); + (*pp->drv_ptr->ready_output)((ErlDrvData) pp->drv_data, + ptp->u.alive.td.io.event); io_tasks_executed++; break; case ERTS_PORT_TASK_EVENT: - reds += ERTS_PORT_REDS_EVENT; - ASSERT((pp->status & ERTS_PORT_SFLGS_DEAD) == 0); + reds = ERTS_PORT_REDS_EVENT; + ASSERT((state & ERTS_PORT_SFLGS_DEAD) == 0); DTRACE_DRIVER(driver_event, pp); - (*pp->drv_ptr->event)((ErlDrvData) pp->drv_data, ptp->event, ptp->event_data); + (*pp->drv_ptr->event)((ErlDrvData) pp->drv_data, + ptp->u.alive.td.io.event, + ptp->u.alive.td.io.event_data); io_tasks_executed++; break; + case ERTS_PORT_TASK_PROC_SIG: { + ErtsProc2PortSigData *sigdp = &ptp->u.alive.td.psig.data; + ASSERT((state & ERTS_PORT_SFLGS_DEAD) == 0); + if (!pp->sched.taskq.bpq) + reds = ptp->u.alive.td.psig.callback(pp, + state, + ERTS_PROC2PORT_SIG_EXEC, + sigdp); + else { + ErlDrvSizeT size = erts_proc2port_sig_command_data_size(sigdp); + reds = ptp->u.alive.td.psig.callback(pp, + state, + ERTS_PROC2PORT_SIG_EXEC, + sigdp); + dequeued_proc2port_data(pp, size); + } + break; + } case ERTS_PORT_TASK_DIST_CMD: - reds += erts_dist_command(pp, CONTEXT_REDS-reds); + reds = erts_dist_command(pp, CONTEXT_REDS - pp->reds); break; default: erl_exit(ERTS_ABORT_EXIT, @@ -897,34 +1744,44 @@ erts_port_task_execute(ErtsRunQueue *runq, Port **curr_port_pp) break; } - if ((pp->status & ERTS_PORT_SFLG_CLOSING) - && erts_is_port_ioq_empty(pp)) { - reds += ERTS_PORT_REDS_TERMINATE; - erts_terminate_port(pp); + reds += erts_port_driver_callback_epilogue(pp, &state); + + if (start_time != 0) { + Sint64 diff = erts_timestamp_millis() - start_time; + if (diff > 0 && (Uint) diff > erts_system_monitor_long_schedule) { + monitor_long_schedule_port(pp,ptp->type,(Uint) diff); + } } + start_time = 0; - ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(pp)); + aborted_port_task: + schedule_port_task_free(ptp); -#ifdef ERTS_SMP - if (pp->xports) - erts_smp_xports_unlock(pp); - ASSERT(!pp->xports); -#endif + begin_handle_tasks: + if (state & ERTS_PORT_SFLG_FREE) { + reds += ERTS_PORT_REDS_FREE; + begin_port_cleanup(pp, &execq, &processing_busy_q); - ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(pp)); + break; + } - port_task_free(ptp); + vreds += ERTS_PORT_CALLBACK_VREDS; + reds += ERTS_PORT_CALLBACK_VREDS; - erts_smp_runq_lock(runq); - ERTS_SMP_LC_VERIFY_RQ(runq, pp); + pp->reds += reds; + reds = 0; - ptp = pop_task(ptqp); + if (pp->reds >= CONTEXT_REDS) + break; } - tasks_done: - erts_unblock_fpe(fpe_was_unmasked); + /* trace port scheduling, out */ + if (IS_TRACED_FL(pp, F_TRACE_SCHED_PORTS)) { + trace_sched_ports(pp, am_out); + } + if (io_tasks_executed) { ASSERT(erts_smp_atomic_read_nob(&erts_port_task_outstanding_io_tasks) >= io_tasks_executed); @@ -932,23 +1789,30 @@ erts_port_task_execute(ErtsRunQueue *runq, Port **curr_port_pp) -1*io_tasks_executed); } - *curr_port_pp = NULL; - #ifdef ERTS_SMP ASSERT(runq == (ErtsRunQueue *) erts_smp_atomic_read_nob(&pp->run_queue)); #endif - if (!pp->sched.taskq) { - ASSERT(pp->sched.exe_taskq); - pp->sched.exe_taskq = NULL; + active = finalize_exec(pp, &execq, processing_busy_q); + + reds = pp->reds - vreds; + + erts_port_release(pp); + + *curr_port_pp = NULL; + + erts_smp_runq_lock(runq); + + if (!active) { + if (erts_system_profile_flags.runnable_ports) + profile_runnable_port(pp, am_inactive); } else { #ifdef ERTS_SMP ErtsRunQueue *xrunq; #endif - ASSERT(!(pp->status & ERTS_PORT_SFLGS_DEAD)); - ASSERT(pp->sched.taskq->first); + ASSERT(!(erts_atomic32_read_nob(&pp->state) & ERTS_PORT_SFLGS_DEAD)); #ifdef ERTS_SMP xrunq = erts_check_emigration_need(runq, ERTS_PORT_PRIO_LEVEL); @@ -957,58 +1821,29 @@ erts_port_task_execute(ErtsRunQueue *runq, Port **curr_port_pp) if (!xrunq) { #endif enqueue_port(runq, pp); - ASSERT(pp->sched.exe_taskq); - pp->sched.exe_taskq = NULL; /* No need to notify ourselves about inc in runq. */ #ifdef ERTS_SMP } else { /* Emigrate port... */ erts_smp_atomic_set_nob(&pp->run_queue, (erts_aint_t) xrunq); + erts_smp_runq_unlock(runq); + + xrunq = erts_port_runq(pp); + ASSERT(xrunq); enqueue_port(xrunq, pp); - ASSERT(pp->sched.exe_taskq); - pp->sched.exe_taskq = NULL; erts_smp_runq_unlock(xrunq); erts_smp_notify_inc_runq(xrunq); + + erts_smp_runq_lock(runq); } #endif - port_was_enqueued = 1; } + done: res = (erts_smp_atomic_read_nob(&erts_port_task_outstanding_io_tasks) != (erts_aint_t) 0); - ERTS_PT_CHK_PRES_PORTQ(runq, pp); - - port_taskq_free(ptqp); - - if (erts_system_profile_flags.runnable_ports && (port_was_enqueued != 1)) { - profile_runnable_port(pp, am_inactive); - } - - /* trace port scheduling, out */ - if (IS_TRACED_FL(pp, F_TRACE_SCHED_PORTS)) { - trace_sched_ports(pp, am_out); - } -#ifndef ERTS_SMP - erts_port_release(pp); -#else - { - erts_aint_t refc; - erts_smp_mtx_unlock(pp->lock); - refc = erts_smp_atomic_dec_read_nob(&pp->refc); - ASSERT(refc >= 0); - if (refc == 0) { - erts_smp_runq_unlock(runq); - erts_port_cleanup(pp); /* Might aquire runq lock */ - erts_smp_runq_lock(runq); - res = (erts_smp_atomic_read_nob(&erts_port_task_outstanding_io_tasks) - != (erts_aint_t) 0); - } - } -#endif - - done: runq->scheduler->reductions += reds; ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(runq)); @@ -1017,122 +1852,260 @@ erts_port_task_execute(ErtsRunQueue *runq, Port **curr_port_pp) return res; } -/* - * Handle remaining tasks after a free task. - */ +#ifdef ERTS_SMP +static void +release_port(void *vport) +{ + erts_port_dec_refc((Port *) vport); +} static void -handle_remaining_tasks(ErtsRunQueue *runq, Port *pp) +schedule_release_port(void *vport) { + Port *pp = (Port*)vport; + /* This is only used when a port release was ordered from a non-scheduler */ + erts_schedule_thr_prgr_later_op(release_port, + (void *) pp, + &pp->common.u.release); +} + +#endif + +static void +begin_port_cleanup(Port *pp, ErtsPortTask **execqp, int *processing_busy_q_p) { - int i; - ErtsPortTask *ptp; - ErtsPortTaskQueue *ptqps[] = {pp->sched.exe_taskq, pp->sched.taskq}; + int i, max; + ErtsPortTaskBusyCallerTable *tabp; + ErtsPortTask *qs[3]; + ErtsPortTaskHandleList *free_nshp = NULL; + ErtsProcList *plp; ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(pp)); - for (i = 0; i < sizeof(ptqps)/sizeof(ErtsPortTaskQueue *); i++) { - if (!ptqps[i]) - continue; + /* + * Abort remaining tasks... + * + * We want to process queues in the following order in order + * to preserve signal ordering guarantees: + * 1. Local busy queue + * 2. Local queue + * 3. In queue + */ + + max = 0; + if (!execqp) { + if (pp->sched.taskq.local.busy.first) + qs[max++] = pp->sched.taskq.local.busy.first; + if (pp->sched.taskq.local.first) + qs[max++] = pp->sched.taskq.local.first; + } + else { + if (*processing_busy_q_p) { + if (*execqp) + qs[max++] = *execqp; + if (pp->sched.taskq.local.first) + qs[max++] = pp->sched.taskq.local.first; + } + else { + if (pp->sched.taskq.local.busy.first) + qs[max++] = pp->sched.taskq.local.busy.first; + if (*execqp) + qs[max++] = *execqp; + } + *execqp = NULL; + *processing_busy_q_p = 0; + } + pp->sched.taskq.local.busy.first = NULL; + pp->sched.taskq.local.busy.last = NULL; + pp->sched.taskq.local.first = NULL; + tabp = pp->sched.taskq.local.busy.table; + if (tabp) { + int bix; + for (bix = 0; bix < ERTS_PORT_TASK_BUSY_CALLER_TABLE_BUCKETS; bix++) { + ErtsPortTaskBusyCaller *bcp = tabp->bucket[bix]; + while (bcp) { + ErtsPortTaskBusyCaller *free_bcp = bcp; + bcp = bcp->next; + if (free_bcp != &tabp->pre_alloc_busy_caller) + erts_free(ERTS_ALC_T_BUSY_CALLER, free_bcp); + } + } + + busy_caller_table_free(tabp); + pp->sched.taskq.local.busy.table = NULL; + } + + erts_port_task_sched_lock(&pp->sched); + qs[max] = pp->sched.taskq.in.first; + pp->sched.taskq.in.first = NULL; + pp->sched.taskq.in.last = NULL; + erts_port_task_sched_unlock(&pp->sched); + if (qs[max]) + max++; + + for (i = 0; i < max; i++) { + while (1) { + erts_aint32_t state; + ErtsPortTask *ptp = qs[i]; + if (!ptp) + break; + + qs[i] = ptp->u.alive.next; + + /* Normal case here is aborted tasks... */ + state = erts_smp_atomic32_read_nob(&ptp->state); + if (state == ERTS_PT_STATE_ABORTED) + goto aborted_port_task; + + state = erts_smp_atomic32_cmpxchg_nob(&ptp->state, + ERTS_PT_STATE_EXECUTING, + ERTS_PT_STATE_SCHEDULED); + if (state != ERTS_PT_STATE_SCHEDULED) { + ASSERT(state == ERTS_PT_STATE_ABORTED); + goto aborted_port_task; + } - ptp = pop_task(ptqps[i]); - while (ptp) { reset_handle(ptp); - erts_smp_runq_unlock(runq); switch (ptp->type) { - case ERTS_PORT_TASK_FREE: case ERTS_PORT_TASK_TIMEOUT: break; case ERTS_PORT_TASK_INPUT: - erts_stale_drv_select(pp->id, ptp->event, DO_READ, 1); + erts_stale_drv_select(pp->common.id, + ERTS_Port2ErlDrvPort(pp), + ptp->u.alive.td.io.event, + DO_READ, + 1); break; case ERTS_PORT_TASK_OUTPUT: - erts_stale_drv_select(pp->id, ptp->event, DO_WRITE, 1); + erts_stale_drv_select(pp->common.id, + ERTS_Port2ErlDrvPort(pp), + ptp->u.alive.td.io.event, + DO_WRITE, + 1); break; case ERTS_PORT_TASK_EVENT: - erts_stale_drv_select(pp->id, ptp->event, 0, 1); + erts_stale_drv_select(pp->common.id, + ERTS_Port2ErlDrvPort(pp), + ptp->u.alive.td.io.event, + 0, + 1); break; case ERTS_PORT_TASK_DIST_CMD: break; + case ERTS_PORT_TASK_PROC_SIG: { + ErtsProc2PortSigData *sigdp = &ptp->u.alive.td.psig.data; + if (!pp->sched.taskq.bpq) + ptp->u.alive.td.psig.callback(NULL, + ERTS_PORT_SFLG_INVALID, + ERTS_PROC2PORT_SIG_ABORT_CLOSED, + sigdp); + else { + ErlDrvSizeT size = erts_proc2port_sig_command_data_size(sigdp); + ptp->u.alive.td.psig.callback(NULL, + ERTS_PORT_SFLG_INVALID, + ERTS_PROC2PORT_SIG_ABORT_CLOSED, + sigdp); + aborted_proc2port_data(pp, size); + } + break; + } default: erl_exit(ERTS_ABORT_EXIT, "Invalid port task type: %d\n", (int) ptp->type); } - port_task_free(ptp); + aborted_port_task: + schedule_port_task_free(ptp); + } + } - erts_smp_runq_lock(runq); - ERTS_SMP_LC_VERIFY_RQ(runq, pp); - ptp = pop_task(ptqps[i]); + erts_smp_atomic32_read_band_nob(&pp->sched.flags, + ~(ERTS_PTS_FLG_HAVE_BUSY_TASKS + |ERTS_PTS_FLG_HAVE_TASKS + |ERTS_PTS_FLGS_BUSY)); + + erts_port_task_sched_lock(&pp->sched); + + /* Cleanup nosuspend handles... */ + free_nshp = (pp->sched.taskq.local.busy.nosuspend + ? get_free_nosuspend_handles(pp) + : NULL); + ASSERT(!pp->sched.taskq.local.busy.nosuspend); + + /* Make sure not to leave any processes suspended on the port... */ + plp = pp->suspended; + pp->suspended = NULL; + + erts_port_task_sched_unlock(&pp->sched); + + if (free_nshp) + free_nosuspend_handles(free_nshp); + + if (erts_proclist_fetch(&plp, NULL)) { +#ifdef USE_VM_PROBES + if (DTRACE_ENABLED(process_port_unblocked)) { + DTRACE_CHARBUF(port_str, 16); + DTRACE_CHARBUF(pid_str, 16); + ErtsProcList* plp2 = plp; + + erts_snprintf(port_str, sizeof(DTRACE_CHARBUF_NAME(port_str)), "%T", pp->common.id); + while (plp2 != NULL) { + erts_snprintf(pid_str, sizeof(DTRACE_CHARBUF_NAME(pid_str)), "%T", plp2->pid); + DTRACE2(process_port_unblocked, pid_str, port_str); + } } +#endif + erts_resume_processes(plp); } - ASSERT(!pp->sched.taskq || !pp->sched.taskq->first); + /* + * Schedule cleanup of port structure... + */ +#ifdef ERTS_SMP + /* We might not be a scheduler, eg. traceing to port we are sys_msg_dispatcher */ + if (!erts_get_scheduler_data()) { + erts_schedule_misc_aux_work(1, schedule_release_port, (void*)pp); + } else { + /* Has to be more or less immediate to release any driver */ + erts_schedule_thr_prgr_later_op(release_port, + (void *) pp, + &pp->common.u.release); + } +#else + pp->cleanup = 1; +#endif } int erts_port_is_scheduled(Port *pp) { - int res; - ErtsRunQueue *runq = erts_port_runq(pp); - res = pp->sched.taskq || pp->sched.exe_taskq; - erts_smp_runq_unlock(runq); - return res; + erts_aint32_t flags = erts_smp_atomic32_read_acqb(&pp->sched.flags); + return (flags & (ERTS_PTS_FLG_IN_RUNQ|ERTS_PTS_FLG_EXEC)) != 0; } #ifdef ERTS_SMP -ErtsMigrateResult -erts_port_migrate(Port *prt, int *prt_locked, - ErtsRunQueue *from_rq, int *from_locked, - ErtsRunQueue *to_rq, int *to_locked) +void +erts_enqueue_port(ErtsRunQueue *rq, Port *pp) { - ERTS_SMP_LC_ASSERT(*from_locked); - ERTS_SMP_LC_CHK_RUNQ_LOCK(from_rq, *from_locked); - ERTS_SMP_LC_CHK_RUNQ_LOCK(to_rq, *to_locked); - - if (!*from_locked || !*to_locked) { - if (from_rq < to_rq) { - if (!*to_locked) { - if (!*from_locked) - erts_smp_runq_lock(from_rq); - erts_smp_runq_lock(to_rq); - } - else if (erts_smp_runq_trylock(from_rq) == EBUSY) { - erts_smp_runq_unlock(to_rq); - erts_smp_runq_lock(from_rq); - erts_smp_runq_lock(to_rq); - } - } - else { - if (!*from_locked) { - if (!*to_locked) - erts_smp_runq_lock(to_rq); - erts_smp_runq_lock(from_rq); - } - else if (erts_smp_runq_trylock(to_rq) == EBUSY) { - erts_smp_runq_unlock(from_rq); - erts_smp_runq_lock(to_rq); - erts_smp_runq_lock(from_rq); - } - } - *to_locked = *from_locked = 1; - } - ERTS_SMP_LC_CHK_RUNQ_LOCK(from_rq, *from_locked); - ERTS_SMP_LC_CHK_RUNQ_LOCK(to_rq, *to_locked); - - /* Refuse to migrate to a suspended run queue */ - if (to_rq->flags & ERTS_RUNQ_FLG_SUSPENDED) - return ERTS_MIGRATE_FAILED_RUNQ_SUSPENDED; - if (from_rq != (ErtsRunQueue *) erts_smp_atomic_read_nob(&prt->run_queue)) - return ERTS_MIGRATE_FAILED_RUNQ_CHANGED; - if (!ERTS_PORT_IS_IN_RUNQ(from_rq, prt)) - return ERTS_MIGRATE_FAILED_NOT_IN_RUNQ; - dequeue_port(from_rq, prt); - erts_smp_atomic_set_nob(&prt->run_queue, (erts_aint_t) to_rq); - enqueue_port(to_rq, prt); - return ERTS_MIGRATE_SUCCESS; + ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(rq)); + ASSERT(rq == (ErtsRunQueue *) erts_smp_atomic_read_nob(&pp->run_queue)); + ASSERT(erts_smp_atomic32_read_nob(&pp->sched.flags) & ERTS_PTS_FLG_IN_RUNQ); + enqueue_port(rq, pp); +} + +Port * +erts_dequeue_port(ErtsRunQueue *rq) +{ + Port *pp; + ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(rq)); + pp = pop_port(rq); + ASSERT(!pp + || rq == (ErtsRunQueue *) erts_smp_atomic_read_nob(&pp->run_queue)); + ASSERT(!pp || (erts_smp_atomic32_read_nob(&pp->sched.flags) + & ERTS_PTS_FLG_IN_RUNQ)); + return pp; } #endif @@ -1146,5 +2119,5 @@ erts_port_task_init(void) erts_smp_atomic_init_nob(&erts_port_task_outstanding_io_tasks, (erts_aint_t) 0); init_port_task_alloc(); - init_port_taskq_alloc(); + init_busy_caller_table_alloc(); } diff --git a/erts/emulator/beam/erl_port_task.h b/erts/emulator/beam/erl_port_task.h index d7104e1143..1d30465ec9 100644 --- a/erts/emulator/beam/erl_port_task.h +++ b/erts/emulator/beam/erl_port_task.h @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 2006-2011. All Rights Reserved. + * Copyright Ericsson AB 2006-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -27,6 +27,9 @@ #define ERTS_PORT_TASK_H_BASIC_TYPES__ #include "erl_sys_driver.h" #include "erl_smp.h" +#define ERL_PORT_GET_PORT_TYPE_ONLY__ +#include "erl_port.h" +#undef ERL_PORT_GET_PORT_TYPE_ONLY__ typedef erts_smp_atomic_t ErtsPortTaskHandle; #endif @@ -43,13 +46,19 @@ typedef erts_smp_atomic_t ErtsPortTaskHandle; #define ERTS_INCLUDE_SCHEDULER_INTERNALS #endif +#define ERTS_PT_FLG_WAIT_BUSY (1 << 0) +#define ERTS_PT_FLG_SIG_DEP (1 << 1) +#define ERTS_PT_FLG_NOSUSPEND (1 << 2) +#define ERTS_PT_FLG_REF (1 << 3) +#define ERTS_PT_FLG_BAD_OUTPUT (1 << 4) + typedef enum { - ERTS_PORT_TASK_FREE, ERTS_PORT_TASK_INPUT, ERTS_PORT_TASK_OUTPUT, ERTS_PORT_TASK_EVENT, ERTS_PORT_TASK_TIMEOUT, - ERTS_PORT_TASK_DIST_CMD + ERTS_PORT_TASK_DIST_CMD, + ERTS_PORT_TASK_PROC_SIG } ErtsPortTaskType; #ifdef ERTS_INCLUDE_SCHEDULER_INTERNALS @@ -57,19 +66,79 @@ typedef enum { extern erts_smp_atomic_t erts_port_task_outstanding_io_tasks; #endif +#define ERTS_PTS_FLG_IN_RUNQ (((erts_aint32_t) 1) << 0) +#define ERTS_PTS_FLG_EXEC (((erts_aint32_t) 1) << 1) +#define ERTS_PTS_FLG_HAVE_TASKS (((erts_aint32_t) 1) << 2) +#define ERTS_PTS_FLG_EXIT (((erts_aint32_t) 1) << 3) +#define ERTS_PTS_FLG_BUSY_PORT (((erts_aint32_t) 1) << 4) +#define ERTS_PTS_FLG_BUSY_PORT_Q (((erts_aint32_t) 1) << 5) +#define ERTS_PTS_FLG_CHK_UNSET_BUSY_PORT_Q (((erts_aint32_t) 1) << 6) +#define ERTS_PTS_FLG_HAVE_BUSY_TASKS (((erts_aint32_t) 1) << 7) +#define ERTS_PTS_FLG_HAVE_NS_TASKS (((erts_aint32_t) 1) << 8) +#define ERTS_PTS_FLG_PARALLELISM (((erts_aint32_t) 1) << 9) +#define ERTS_PTS_FLG_FORCE_SCHED (((erts_aint32_t) 1) << 10) +#define ERTS_PTS_FLG_EXITING (((erts_aint32_t) 1) << 11) + +#define ERTS_PTS_FLGS_BUSY \ + (ERTS_PTS_FLG_BUSY_PORT | ERTS_PTS_FLG_BUSY_PORT_Q) + +#define ERTS_PTS_FLGS_FORCE_SCHEDULE_OP \ + (ERTS_PTS_FLG_EXIT \ + | ERTS_PTS_FLG_HAVE_BUSY_TASKS \ + | ERTS_PTS_FLG_HAVE_TASKS \ + | ERTS_PTS_FLG_EXEC \ + | ERTS_PTS_FLG_FORCE_SCHED \ + | ERTS_PTS_FLG_EXITING) + +#define ERTS_PORT_TASK_DEFAULT_BUSY_PORT_Q_HIGH 8192 +#define ERTS_PORT_TASK_DEFAULT_BUSY_PORT_Q_LOW 4096 + +typedef struct { + ErlDrvSizeT high; + erts_smp_atomic_t low; + erts_smp_atomic_t size; +} ErtsPortTaskBusyPortQ; + typedef struct ErtsPortTask_ ErtsPortTask; -typedef struct ErtsPortTaskQueue_ ErtsPortTaskQueue; +typedef struct ErtsPortTaskBusyCallerTable_ ErtsPortTaskBusyCallerTable; +typedef struct ErtsPortTaskHandleList_ ErtsPortTaskHandleList; typedef struct { Port *next; - Port *prev; - ErtsPortTaskQueue *taskq; - ErtsPortTaskQueue *exe_taskq; + struct { + struct { + struct { + ErtsPortTask *first; + ErtsPortTask *last; + ErtsPortTaskBusyCallerTable *table; + ErtsPortTaskHandleList *nosuspend; + } busy; + ErtsPortTask *first; + } local; + struct { + ErtsPortTask *first; + ErtsPortTask *last; + } in; + ErtsPortTaskBusyPortQ *bpq; + } taskq; + erts_smp_atomic32_t flags; +#ifdef ERTS_SMP + erts_mtx_t mtx; +#endif } ErtsPortTaskSched; ERTS_GLB_INLINE void erts_port_task_handle_init(ErtsPortTaskHandle *pthp); ERTS_GLB_INLINE int erts_port_task_is_scheduled(ErtsPortTaskHandle *pthp); -ERTS_GLB_INLINE void erts_port_task_init_sched(ErtsPortTaskSched *ptsp); +ERTS_GLB_INLINE void erts_port_task_pre_init_sched(ErtsPortTaskSched *ptsp, + ErtsPortTaskBusyPortQ *bpq); +ERTS_GLB_INLINE void erts_port_task_init_sched(ErtsPortTaskSched *ptsp, + Eterm id); +ERTS_GLB_INLINE void erts_port_task_fini_sched(ErtsPortTaskSched *ptsp); +ERTS_GLB_INLINE void erts_port_task_sched_lock(ErtsPortTaskSched *ptsp); +ERTS_GLB_INLINE void erts_port_task_sched_unlock(ErtsPortTaskSched *ptsp); +ERTS_GLB_INLINE int erts_port_task_sched_lock_is_locked(ErtsPortTaskSched *ptsp); +ERTS_GLB_INLINE void erts_port_task_sched_enter_exiting_state(ErtsPortTaskSched *ptsp); + #ifdef ERTS_INCLUDE_SCHEDULER_INTERNALS ERTS_GLB_INLINE int erts_port_task_have_outstanding_io_tasks(void); #endif @@ -88,13 +157,83 @@ erts_port_task_is_scheduled(ErtsPortTaskHandle *pthp) return ((void *) erts_smp_atomic_read_nob(pthp)) != NULL; } +ERTS_GLB_INLINE void erts_port_task_pre_init_sched(ErtsPortTaskSched *ptsp, + ErtsPortTaskBusyPortQ *bpq) +{ + if (bpq) { + erts_aint_t low = (erts_aint_t) ERTS_PORT_TASK_DEFAULT_BUSY_PORT_Q_LOW; + erts_smp_atomic_init_nob(&bpq->low, low); + bpq->high = (ErlDrvSizeT) ERTS_PORT_TASK_DEFAULT_BUSY_PORT_Q_HIGH; + erts_smp_atomic_init_nob(&bpq->size, (erts_aint_t) 0); + } + ptsp->taskq.bpq = bpq; +} + ERTS_GLB_INLINE void -erts_port_task_init_sched(ErtsPortTaskSched *ptsp) +erts_port_task_init_sched(ErtsPortTaskSched *ptsp, Eterm instr_id) { +#ifdef ERTS_SMP + char *lock_str = "port_sched_lock"; +#endif ptsp->next = NULL; - ptsp->prev = NULL; - ptsp->taskq = NULL; - ptsp->exe_taskq = NULL; + ptsp->taskq.local.busy.first = NULL; + ptsp->taskq.local.busy.last = NULL; + ptsp->taskq.local.busy.table = NULL; + ptsp->taskq.local.busy.nosuspend = NULL; + ptsp->taskq.local.first = NULL; + ptsp->taskq.in.first = NULL; + ptsp->taskq.in.last = NULL; + erts_smp_atomic32_init_nob(&ptsp->flags, 0); +#ifdef ERTS_SMP + erts_mtx_init_x(&ptsp->mtx, lock_str, instr_id, +#ifdef ERTS_ENABLE_LOCK_COUNT + (erts_lcnt_rt_options & ERTS_LCNT_OPT_PORTLOCK) +#else + 1 +#endif + ); +#endif +} + +ERTS_GLB_INLINE void +erts_port_task_sched_lock(ErtsPortTaskSched *ptsp) +{ +#ifdef ERTS_SMP + erts_mtx_lock(&ptsp->mtx); +#endif +} + +ERTS_GLB_INLINE void +erts_port_task_sched_unlock(ErtsPortTaskSched *ptsp) +{ +#ifdef ERTS_SMP + erts_mtx_unlock(&ptsp->mtx); +#endif +} + +ERTS_GLB_INLINE int +erts_port_task_sched_lock_is_locked(ErtsPortTaskSched *ptsp) +{ +#if defined(ERTS_SMP) && defined(ERTS_ENABLE_LOCK_CHECK) + return erts_lc_mtx_is_locked(&ptsp->mtx); +#else + return 0; +#endif +} + + +ERTS_GLB_INLINE void +erts_port_task_fini_sched(ErtsPortTaskSched *ptsp) +{ +#ifdef ERTS_SMP + erts_mtx_destroy(&ptsp->mtx); +#endif +} + +ERTS_GLB_INLINE void +erts_port_task_sched_enter_exiting_state(ErtsPortTaskSched *ptsp) +{ + erts_smp_atomic32_read_bor_nob(&ptsp->flags, ERTS_PTS_FLG_EXITING); } #ifdef ERTS_INCLUDE_SCHEDULER_INTERNALS @@ -115,21 +254,22 @@ int erts_port_task_execute(ErtsRunQueue *, Port **); void erts_port_task_init(void); #endif -int erts_port_task_abort(Eterm id, ErtsPortTaskHandle *); +void erts_port_task_tmp_handle_detach(ErtsPortTaskHandle *); +int erts_port_task_abort(ErtsPortTaskHandle *); + +void erts_port_task_abort_nosuspend_tasks(Port *); + int erts_port_task_schedule(Eterm, ErtsPortTaskHandle *, ErtsPortTaskType, - ErlDrvEvent, - ErlDrvEventData); + ...); void erts_port_task_free_port(Port *); int erts_port_is_scheduled(Port *); +ErtsProc2PortSigData *erts_port_task_alloc_p2p_sig_data(void); + #ifdef ERTS_SMP -ErtsMigrateResult erts_port_migrate(Port *, - int *, - ErtsRunQueue *, - int *, - ErtsRunQueue *, - int *); +void erts_enqueue_port(ErtsRunQueue *rq, Port *pp); +Port *erts_dequeue_port(ErtsRunQueue *rq); #endif #undef ERTS_INCLUDE_SCHEDULER_INTERNALS #endif /* ERL_PORT_TASK_H__ */ diff --git a/erts/emulator/beam/erl_printf_term.c b/erts/emulator/beam/erl_printf_term.c index 34da9cab84..d18760dc43 100644 --- a/erts/emulator/beam/erl_printf_term.c +++ b/erts/emulator/beam/erl_printf_term.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 2005-2011. All Rights Reserved. + * Copyright Ericsson AB 2005-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -24,6 +24,7 @@ #include "erl_printf_term.h" #include "sys.h" #include "big.h" +#include "erl_map.h" #define PRINT_CHAR(CNT, FN, ARG, C) \ do { \ @@ -57,17 +58,17 @@ do { \ (CNT) += res__; \ } while (0) -#define PRINT_ULONG(CNT, FN, ARG, C, P, W, I) \ +#define PRINT_UWORD(CNT, FN, ARG, C, P, W, I) \ do { \ - int res__ = erts_printf_ulong((FN), (ARG), (C), (P), (W), (I)); \ + int res__ = erts_printf_uword((FN), (ARG), (C), (P), (W), (I)); \ if (res__ < 0) \ return res__; \ (CNT) += res__; \ } while (0) -#define PRINT_SLONG(CNT, FN, ARG, C, P, W, I) \ +#define PRINT_SWORD(CNT, FN, ARG, C, P, W, I) \ do { \ - int res__ = erts_printf_slong((FN), (ARG), (C), (P), (W), (I)); \ + int res__ = erts_printf_sword((FN), (ARG), (C), (P), (W), (I)); \ if (res__ < 0) \ return res__; \ (CNT) += res__; \ @@ -153,7 +154,7 @@ static int print_atom_name(fmtfn_t fn, void* arg, Eterm atom, long *dcount) if ((i < 0) || (i >= atom_table_size()) || (atom_tab(i) == NULL)) { PRINT_STRING(res, fn, arg, "<bad atom index: "); - PRINT_SLONG(res, fn, arg, 'd', 0, 1, (signed long) i); + PRINT_SWORD(res, fn, arg, 'd', 0, 1, (ErlPfSWord) i); PRINT_CHAR(res, fn, arg, '>'); return res; } @@ -203,7 +204,7 @@ static int print_atom_name(fmtfn_t fn, void* arg, Eterm atom, long *dcount) default: if (IS_CNTRL(c)) { PRINT_CHAR(res, fn, arg, '\\'); - PRINT_ULONG(res, fn, arg, 'o', 1, 3, (unsigned long) c); + PRINT_UWORD(res, fn, arg, 'o', 1, 3, (ErlPfUWord) c); } else PRINT_CHAR(res, fn, arg, (char) c); @@ -216,14 +217,15 @@ static int print_atom_name(fmtfn_t fn, void* arg, Eterm atom, long *dcount) } -#define PRT_BAR ((Eterm) 0) -#define PRT_COMMA ((Eterm) 1) -#define PRT_CLOSE_LIST ((Eterm) 2) -#define PRT_CLOSE_TUPLE ((Eterm) 3) -#define PRT_TERM ((Eterm) 4) -#define PRT_ONE_CONS ((Eterm) 5) -#define PRT_PATCH_FUN_SIZE ((Eterm) 6) -#define PRT_LAST_ARRAY_ELEMENT ((Eterm) 7) /* Note! Must be last... */ +#define PRT_BAR ((Eterm) 0) +#define PRT_COMMA ((Eterm) 1) +#define PRT_CLOSE_LIST ((Eterm) 2) +#define PRT_CLOSE_TUPLE ((Eterm) 3) +#define PRT_ASSOC ((Eterm) 4) +#define PRT_TERM ((Eterm) 5) +#define PRT_ONE_CONS ((Eterm) 6) +#define PRT_PATCH_FUN_SIZE ((Eterm) 7) +#define PRT_LAST_ARRAY_ELEMENT ((Eterm) 8) /* Note! Must be last... */ static int print_term(fmtfn_t fn, void* arg, Eterm obj, long *dcount, @@ -260,6 +262,9 @@ print_term(fmtfn_t fn, void* arg, Eterm obj, long *dcount, case PRT_CLOSE_TUPLE: PRINT_CHAR(res, fn, arg, '}'); goto L_outer_loop; + case PRT_ASSOC: + PRINT_STRING(res, fn, arg, "=>"); + goto L_outer_loop; default: popped.word = WSTACK_POP(s); @@ -334,7 +339,7 @@ print_term(fmtfn_t fn, void* arg, Eterm obj, long *dcount, break; } case SMALL_DEF: - PRINT_SLONG(res, fn, arg, 'd', 0, 1, (signed long) signed_val(obj)); + PRINT_SWORD(res, fn, arg, 'd', 0, 1, (ErlPfSWord) signed_val(obj)); break; case BIG_DEF: { int print_res; @@ -360,36 +365,36 @@ print_term(fmtfn_t fn, void* arg, Eterm obj, long *dcount, case REF_DEF: case EXTERNAL_REF_DEF: PRINT_STRING(res, fn, arg, "#Ref<"); - PRINT_ULONG(res, fn, arg, 'u', 0, 1, - (unsigned long) ref_channel_no(wobj)); + PRINT_UWORD(res, fn, arg, 'u', 0, 1, + (ErlPfUWord) ref_channel_no(wobj)); ref_num = ref_numbers(wobj); for (i = ref_no_of_numbers(wobj)-1; i >= 0; i--) { PRINT_CHAR(res, fn, arg, '.'); - PRINT_ULONG(res, fn, arg, 'u', 0, 1, (unsigned long) ref_num[i]); + PRINT_UWORD(res, fn, arg, 'u', 0, 1, (ErlPfUWord) ref_num[i]); } PRINT_CHAR(res, fn, arg, '>'); break; case PID_DEF: case EXTERNAL_PID_DEF: PRINT_CHAR(res, fn, arg, '<'); - PRINT_ULONG(res, fn, arg, 'u', 0, 1, - (unsigned long) pid_channel_no(wobj)); + PRINT_UWORD(res, fn, arg, 'u', 0, 1, + (ErlPfUWord) pid_channel_no(wobj)); PRINT_CHAR(res, fn, arg, '.'); - PRINT_ULONG(res, fn, arg, 'u', 0, 1, - (unsigned long) pid_number(wobj)); + PRINT_UWORD(res, fn, arg, 'u', 0, 1, + (ErlPfUWord) pid_number(wobj)); PRINT_CHAR(res, fn, arg, '.'); - PRINT_ULONG(res, fn, arg, 'u', 0, 1, - (unsigned long) pid_serial(wobj)); + PRINT_UWORD(res, fn, arg, 'u', 0, 1, + (ErlPfUWord) pid_serial(wobj)); PRINT_CHAR(res, fn, arg, '>'); break; case PORT_DEF: case EXTERNAL_PORT_DEF: PRINT_STRING(res, fn, arg, "#Port<"); - PRINT_ULONG(res, fn, arg, 'u', 0, 1, - (unsigned long) port_channel_no(wobj)); + PRINT_UWORD(res, fn, arg, 'u', 0, 1, + (ErlPfUWord) port_channel_no(wobj)); PRINT_CHAR(res, fn, arg, '.'); - PRINT_ULONG(res, fn, arg, 'u', 0, 1, - (unsigned long) port_number(wobj)); + PRINT_UWORD(res, fn, arg, 'u', 0, 1, + (ErlPfUWord) port_number(wobj)); PRINT_CHAR(res, fn, arg, '>'); break; case LIST_DEF: @@ -437,13 +442,16 @@ print_term(fmtfn_t fn, void* arg, Eterm obj, long *dcount, } break; case BINARY_DEF: - { + if (header_is_bin_matchstate(*boxed_val(wobj))) { + PRINT_STRING(res, fn, arg, "#MatchState"); + } + else { ProcBin* pb = (ProcBin *) binary_val(wobj); if (pb->size == 1) PRINT_STRING(res, fn, arg, "<<1 byte>>"); else { PRINT_STRING(res, fn, arg, "<<"); - PRINT_ULONG(res, fn, arg, 'u', 0, 1, (unsigned long) pb->size); + PRINT_UWORD(res, fn, arg, 'u', 0, 1, (ErlPfUWord) pb->size); PRINT_STRING(res, fn, arg, " bytes>>"); } } @@ -459,8 +467,8 @@ print_term(fmtfn_t fn, void* arg, Eterm obj, long *dcount, PRINT_CHAR(res, fn, arg, '.'); PRINT_BUF(res, fn, arg, name->name, name->len); PRINT_CHAR(res, fn, arg, '.'); - PRINT_SLONG(res, fn, arg, 'd', 0, 1, - (signed long) ep->code[2]); + PRINT_SWORD(res, fn, arg, 'd', 0, 1, + (ErlPfSWord) ep->code[2]); PRINT_CHAR(res, fn, arg, '>'); } break; @@ -472,14 +480,45 @@ print_term(fmtfn_t fn, void* arg, Eterm obj, long *dcount, PRINT_STRING(res, fn, arg, "#Fun<"); PRINT_BUF(res, fn, arg, ap->name, ap->len); PRINT_CHAR(res, fn, arg, '.'); - PRINT_SLONG(res, fn, arg, 'd', 0, 1, - (signed long) funp->fe->old_index); + PRINT_SWORD(res, fn, arg, 'd', 0, 1, + (ErlPfSWord) funp->fe->old_index); PRINT_CHAR(res, fn, arg, '.'); - PRINT_SLONG(res, fn, arg, 'd', 0, 1, - (signed long) funp->fe->old_uniq); + PRINT_SWORD(res, fn, arg, 'd', 0, 1, + (ErlPfSWord) funp->fe->old_uniq); PRINT_CHAR(res, fn, arg, '>'); } break; + case MAP_DEF: + { + Uint n; + Eterm *ks, *vs; + map_t *mp = (map_t *)map_val(wobj); + n = map_get_size(mp); + ks = map_get_keys(mp); + vs = map_get_values(mp); + + PRINT_CHAR(res, fn, arg, '#'); + PRINT_CHAR(res, fn, arg, '{'); + WSTACK_PUSH(s, PRT_CLOSE_TUPLE); + if (n > 0) { + n--; + WSTACK_PUSH(s, vs[n]); + WSTACK_PUSH(s, PRT_TERM); + WSTACK_PUSH(s, PRT_ASSOC); + WSTACK_PUSH(s, ks[n]); + WSTACK_PUSH(s, PRT_TERM); + + while (n--) { + WSTACK_PUSH(s, PRT_COMMA); + WSTACK_PUSH(s, vs[n]); + WSTACK_PUSH(s, PRT_TERM); + WSTACK_PUSH(s, PRT_ASSOC); + WSTACK_PUSH(s, ks[n]); + WSTACK_PUSH(s, PRT_TERM); + } + } + } + break; default: PRINT_STRING(res, fn, arg, "<unknown:"); PRINT_POINTER(res, fn, arg, wobj); @@ -495,10 +534,13 @@ print_term(fmtfn_t fn, void* arg, Eterm obj, long *dcount, } int -erts_printf_term(fmtfn_t fn, void* arg, unsigned long term, long precision, - unsigned long* term_base) +erts_printf_term(fmtfn_t fn, void* arg, ErlPfEterm term, long precision, + ErlPfEterm* term_base) { - int res = print_term(fn, arg, (Eterm)term, &precision, (Eterm*)term_base); + int res; + ASSERT(sizeof(ErlPfEterm) == sizeof(Eterm)); + + res = print_term(fn, arg, (Eterm)term, &precision, (Eterm*)term_base); if (res < 0) return res; if (precision <= 0) diff --git a/erts/emulator/beam/erl_printf_term.h b/erts/emulator/beam/erl_printf_term.h index a48a3de34c..f92c99d713 100644 --- a/erts/emulator/beam/erl_printf_term.h +++ b/erts/emulator/beam/erl_printf_term.h @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 2005-2011. All Rights Reserved. + * Copyright Ericsson AB 2005-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -21,6 +21,6 @@ #define ERL_PRINTF_TERM_H__ #include "erl_printf_format.h" -int erts_printf_term(fmtfn_t fn, void* arg, unsigned long term, long precision, - unsigned long* term_base); +int erts_printf_term(fmtfn_t fn, void* arg, ErlPfEterm term, long precision, + ErlPfEterm* term_base); #endif diff --git a/erts/emulator/beam/erl_process.c b/erts/emulator/beam/erl_process.c index c5127bc29d..1606ad119d 100644 --- a/erts/emulator/beam/erl_process.c +++ b/erts/emulator/beam/erl_process.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 1996-2012. All Rights Reserved. + * Copyright Ericsson AB 1996-2014. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -42,6 +42,8 @@ #include "erl_thr_queue.h" #include "erl_async.h" #include "dtrace-wrapper.h" +#include "erl_ptab.h" + #define ERTS_DELAYED_WAKEUP_INFINITY (~(Uint64) 0) #define ERTS_DELAYED_WAKEUP_REDUCTIONS ((Uint64) CONTEXT_REDS/2) @@ -52,7 +54,11 @@ #define ERTS_PROC_MIN_CONTEXT_SWITCH_REDS_COST (CONTEXT_REDS/10) +#ifndef ERTS_SCHED_MIN_SPIN #define ERTS_SCHED_SPIN_UNTIL_YIELD 100 +#else +#define ERTS_SCHED_SPIN_UNTIL_YIELD 1 +#endif #define ERTS_SCHED_SYS_SLEEP_SPINCOUNT_VERY_LONG 40 #define ERTS_SCHED_AUX_WORK_SLEEP_SPINCOUNT_FACT_VERY_LONG 1000 @@ -97,34 +103,68 @@ #define HIGH_BIT (1 << PRIORITY_HIGH) #define NORMAL_BIT (1 << PRIORITY_NORMAL) #define LOW_BIT (1 << PRIORITY_LOW) +#define PORT_BIT (1 << ERTS_PORT_PRIO_LEVEL) -#define ERTS_MAYBE_SAVE_TERMINATING_PROCESS(P) \ -do { \ - ERTS_SMP_LC_ASSERT(erts_lc_mtx_is_locked(&proc_tab_mtx)); \ - if (saved_term_procs.end) \ - save_terminating_process((P)); \ -} while (0) +#define ERTS_EMPTY_RUNQ(RQ) \ + ((ERTS_RUNQ_FLGS_GET_NOB((RQ)) & ERTS_RUNQ_FLGS_QMASK) == 0 \ + && (RQ)->misc.start == NULL) + +#undef RUNQ_READ_RQ +#undef RUNQ_SET_RQ +#define RUNQ_READ_RQ(X) ((ErtsRunQueue *) erts_smp_atomic_read_nob((X))) +#define RUNQ_SET_RQ(X, RQ) erts_smp_atomic_set_nob((X), (erts_aint_t) (RQ)) -#define ERTS_EMPTY_RUNQ(RQ) \ - ((RQ)->len == 0 && (RQ)->misc.start == NULL) +#ifdef DEBUG +# if defined(ARCH_64) && !HALFWORD_HEAP +# define ERTS_DBG_SET_INVALID_RUNQP(RQP, N) \ + (RUNQ_SET_RQ((RQP), (0xdeadbeefdead0003LL | ((N) << 4))) +# define ERTS_DBG_VERIFY_VALID_RUNQP(RQP) \ +do { \ + ASSERT((RQP) != NULL); \ + ASSERT(((((Uint) (RQP)) & ((Uint) 0x3))) == ((Uint) 0)); \ + ASSERT((((Uint) (RQP)) & ~((Uint) 0xffff)) != ((Uint) 0xdeadbeefdead0000LL));\ +} while (0) +# else +# define ERTS_DBG_SET_INVALID_RUNQP(RQP, N) \ + (RUNQ_SET_RQ((RQP), (0xdead0003 | ((N) << 4)))) +# define ERTS_DBG_VERIFY_VALID_RUNQP(RQP) \ +do { \ + ASSERT((RQP) != NULL); \ + ASSERT(((((UWord) (RQP)) & ((UWord) 1))) == ((UWord) 0)); \ + ASSERT((((UWord) (RQP)) & ~((UWord) 0xffff)) != ((UWord) 0xdead0000)); \ +} while (0) +# endif +#else +# define ERTS_DBG_SET_INVALID_RUNQP(RQP, N) +# define ERTS_DBG_VERIFY_VALID_RUNQP(RQP) +#endif #define ERTS_EMPTY_RUNQ_PORTS(RQ) \ - ((RQ)->ports.info.len == 0 && (RQ)->misc.start == NULL) + (RUNQ_READ_LEN(&(RQ)->ports.info.len) == 0 && (RQ)->misc.start == NULL) + +const Process erts_invalid_process = {{ERTS_INVALID_PID}}; extern BeamInstr beam_apply[]; extern BeamInstr beam_exit[]; extern BeamInstr beam_continue_exit[]; -static Sint p_last; -static Sint p_next; -static Sint p_serial; -static Uint p_serial_mask; -static Uint p_serial_shift; - int erts_sched_compact_load; +int erts_sched_balance_util = 0; Uint erts_no_schedulers; -Uint erts_max_processes = ERTS_DEFAULT_MAX_PROCESSES; -Uint erts_process_tab_index_mask; +#ifdef ERTS_DIRTY_SCHEDULERS +Uint erts_no_dirty_cpu_schedulers; +Uint erts_no_dirty_io_schedulers; +#endif + +#define ERTS_THR_PRGR_LATER_CLEANUP_OP_THRESHOLD_VERY_LAZY (4*1024*1024) +#define ERTS_THR_PRGR_LATER_CLEANUP_OP_THRESHOLD_LAZY (512*1024) +#define ERTS_THR_PRGR_LATER_CLEANUP_OP_THRESHOLD_MEDIUM (64*1024) +#define ERTS_THR_PRGR_LATER_CLEANUP_OP_THRESHOLD_EAGER (16*1024) +#define ERTS_THR_PRGR_LATER_CLEANUP_OP_THRESHOLD_VERY_EAGER (1024) + +static UWord thr_prgr_later_cleanup_op_threshold = ERTS_THR_PRGR_LATER_CLEANUP_OP_THRESHOLD_MEDIUM; + +ErtsPTab erts_proc erts_align_attribute(ERTS_CACHE_LINE_SIZE); int erts_sched_thread_suggested_stack_size = -1; @@ -152,6 +192,13 @@ static ErtsAuxWorkData *aux_thread_aux_work_data; #define ERTS_SCHDLR_SSPND_CHNG_SET(VAL, OLD_VAL) \ erts_smp_atomic32_set_nob(&schdlr_sspnd.changing, (VAL)) +#ifdef ERTS_DIRTY_SCHEDULERS +#define ERTS_SCHDLR_SSPND_DIRTY_CPU_CHNG_SET(VAL, OLD_VAL) \ + erts_smp_atomic32_set_nob(&schdlr_sspnd.dirty_cpu_changing, (VAL)) +#define ERTS_SCHDLR_SSPND_DIRTY_IO_CHNG_SET(VAL, OLD_VAL) \ + erts_smp_atomic32_set_nob(&schdlr_sspnd.dirty_io_changing, (VAL)) +#endif + #else #define ERTS_SCHDLR_SSPND_CHNG_SET(VAL, OLD_VAL) \ @@ -162,6 +209,23 @@ do { \ ASSERT(old_val__ == (OLD_VAL)); \ } while (0) +#ifdef ERTS_DIRTY_SCHEDULERS +#define ERTS_SCHDLR_SSPND_DIRTY_CPU_CHNG_SET(VAL, OLD_VAL) \ +do { \ + erts_aint32_t old_val__; \ + old_val__ = erts_smp_atomic32_xchg_nob(&schdlr_sspnd.dirty_cpu_changing, \ + (VAL)); \ + ASSERT(old_val__ == (OLD_VAL)); \ +} while (0) +#define ERTS_SCHDLR_SSPND_DIRTY_IO_CHNG_SET(VAL, OLD_VAL) \ +do { \ + erts_aint32_t old_val__; \ + old_val__ = erts_smp_atomic32_xchg_nob(&schdlr_sspnd.dirty_io_changing, \ + (VAL)); \ + ASSERT(old_val__ == (OLD_VAL)); \ +} while (0) +#endif + #endif @@ -171,11 +235,29 @@ static struct { int online; int curr_online; int wait_curr_online; +#ifdef ERTS_DIRTY_SCHEDULERS + int dirty_cpu_online; + int dirty_cpu_curr_online; + int dirty_cpu_wait_curr_online; + int dirty_io_online; + int dirty_io_curr_online; + int dirty_io_wait_curr_online; +#endif erts_smp_atomic32_t changing; erts_smp_atomic32_t active; +#ifdef ERTS_DIRTY_SCHEDULERS + erts_smp_atomic32_t dirty_cpu_changing; + erts_smp_atomic32_t dirty_cpu_active; + erts_smp_atomic32_t dirty_io_changing; + erts_smp_atomic32_t dirty_io_active; +#endif struct { int ongoing; long wait_active; +#ifdef ERTS_DIRTY_SCHEDULERS + long dirty_cpu_wait_active; + long dirty_io_wait_active; +#endif ErtsProcList *procs; } msb; /* Multi Scheduling Block */ } schdlr_sspnd; @@ -191,7 +273,7 @@ static struct { struct { int active_runqs; int reds; - int max_len; + erts_aint32_t max_len; } prev_rise; Uint n; } balance_info; @@ -211,13 +293,15 @@ erts_sched_stat_t erts_sched_stat; static erts_tsd_key_t sched_data_key; #endif -static erts_smp_mtx_t proc_tab_mtx; - static erts_smp_atomic32_t function_calls; #ifdef ERTS_SMP static erts_smp_atomic32_t doing_sys_schedule; static erts_smp_atomic32_t no_empty_run_queues; +long erts_runq_supervision_interval = 0; +static ethr_event runq_supervision_event; +static erts_tid_t runq_supervisor_tid; +static erts_atomic_t runq_supervisor_sleeping; #else /* !ERTS_SMP */ ErtsSchedulerData *erts_scheduler_data; #endif @@ -226,6 +310,10 @@ ErtsAlignedRunQueue *erts_aligned_run_queues; Uint erts_no_run_queues; ErtsAlignedSchedulerData *erts_aligned_scheduler_data; +#ifdef ERTS_DIRTY_SCHEDULERS +ErtsAlignedSchedulerData *erts_aligned_dirty_cpu_scheduler_data; +ErtsAlignedSchedulerData *erts_aligned_dirty_io_scheduler_data; +#endif typedef union { ErtsSchedulerSleepInfo ssi; @@ -233,13 +321,19 @@ typedef union { } ErtsAlignedSchedulerSleepInfo; static ErtsAlignedSchedulerSleepInfo *aligned_sched_sleep_info; +#ifdef ERTS_DIRTY_SCHEDULERS +#ifdef ERTS_SMP +static ErtsAlignedSchedulerSleepInfo *aligned_dirty_cpu_sched_sleep_info; +static ErtsAlignedSchedulerSleepInfo *aligned_dirty_io_sched_sleep_info; +#endif +#endif -Process** process_tab; static Uint last_reductions; static Uint last_exact_reductions; Uint erts_default_process_flags; Eterm erts_system_monitor; Eterm erts_system_monitor_long_gc; +Uint erts_system_monitor_long_schedule; Eterm erts_system_monitor_large_heap; struct erts_system_monitor_flags_t erts_system_monitor_flags; @@ -250,29 +344,40 @@ struct erts_system_profile_flags_t erts_system_profile_flags; #if ERTS_MAX_PROCESSES > 0x7fffffff #error "Need to store process_count in another type" #endif -static erts_smp_atomic32_t process_count; -typedef struct ErtsTermProcElement_ ErtsTermProcElement; -struct ErtsTermProcElement_ { - ErtsTermProcElement *next; - ErtsTermProcElement *prev; - int ix; - union { - struct { - Eterm pid; - SysTimeval spawned; - SysTimeval exited; - } process; - struct { - SysTimeval time; - } bif_invocation; - } u; +typedef enum { + ERTS_PSTT_GC, /* Garbage Collect */ + ERTS_PSTT_CPC /* Check Process Code */ +} ErtsProcSysTaskType; + +#define ERTS_MAX_PROC_SYS_TASK_ARGS 2 + +struct ErtsProcSysTask_ { + ErtsProcSysTask *next; + ErtsProcSysTask *prev; + ErtsProcSysTaskType type; + Eterm requester; + Eterm reply_tag; + Eterm req_id; + Uint req_id_sz; + Eterm arg[ERTS_MAX_PROC_SYS_TASK_ARGS]; + ErlOffHeap off_heap; + Eterm heap[1]; }; -static struct { - ErtsTermProcElement *start; - ErtsTermProcElement *end; -} saved_term_procs; +#define ERTS_PROC_SYS_TASK_SIZE(HSz) \ + (sizeof(ErtsProcSysTask) - sizeof(Eterm) + sizeof(Eterm)*(HSz)) + +struct ErtsProcSysTaskQs_ { + int qmask; + int ncount; + ErtsProcSysTask *q[ERTS_NO_PROC_PRIO_LEVELS]; +}; + +ERTS_SCHED_PREF_QUICK_ALLOC_IMPL(proc_sys_task_queues, + ErtsProcSysTaskQs, + 50, + ERTS_ALC_T_PROC_SYS_TSK_QS) ERTS_SCHED_PREF_QUICK_ALLOC_IMPL(misc_op_list, ErtsMiscOpList, @@ -285,9 +390,19 @@ ERTS_SCHED_PREF_QUICK_ALLOC_IMPL(proclist, ERTS_ALC_T_PROC_LIST) #define ERTS_SCHED_SLEEP_INFO_IX(IX) \ - (ASSERT_EXPR(-1 <= ((int) (IX)) \ + (ASSERT(-1 <= ((int) (IX)) \ && ((int) (IX)) < ((int) erts_no_schedulers)), \ &aligned_sched_sleep_info[(IX)].ssi) +#ifdef ERTS_DIRTY_SCHEDULERS +#define ERTS_DIRTY_CPU_SCHED_SLEEP_INFO_IX(IX) \ + (ASSERT(0 <= ((int) (IX)) \ + && ((int) (IX)) < ((int) erts_no_dirty_cpu_schedulers)), \ + &aligned_dirty_cpu_sched_sleep_info[(IX)].ssi) +#define ERTS_DIRTY_IO_SCHED_SLEEP_INFO_IX(IX) \ + (ASSERT(0 <= ((int) (IX)) \ + && ((int) (IX)) < ((int) erts_no_dirty_io_schedulers)), \ + &aligned_dirty_io_sched_sleep_info[(IX)].ssi) +#endif #define ERTS_FOREACH_RUNQ(RQVAR, DO) \ do { \ @@ -334,8 +449,6 @@ do { \ * Local functions. */ -static void init_processes_bif(void); -static void save_terminating_process(Process *p); static void exec_misc_ops(ErtsRunQueue *); static void print_function_from_pc(int to, void *to_arg, BeamInstr* x); static int stack_element_dump(int to, void *to_arg, Process* p, Eterm* sp, @@ -346,6 +459,14 @@ static void aux_work_timeout_early_init(int no_schedulers); static void aux_work_timeout_late_init(void); static void setup_aux_work_timer(void); +static int execute_sys_tasks(Process *c_p, + erts_aint32_t *statep, + int in_reds); +static int cleanup_sys_tasks(Process *c_p, + erts_aint32_t in_state, + int in_reds); + + #if defined(DEBUG) || 0 #define ERTS_DBG_CHK_AUX_WORK_VAL(V) dbg_chk_aux_work_val((V)) static void @@ -366,6 +487,7 @@ dbg_chk_aux_work_val(erts_aint32_t value) valid |= ERTS_SSI_AUX_WORK_MISC_THR_PRGR; valid |= ERTS_SSI_AUX_WORK_DD; valid |= ERTS_SSI_AUX_WORK_DD_THR_PRGR; + valid |= ERTS_SSI_AUX_WORK_THR_PRGR_LATER_OP; #endif #if HAVE_ERTS_MSEG valid |= ERTS_SSI_AUX_WORK_MSEG_CACHE_CHECK; @@ -391,7 +513,7 @@ dbg_chk_aux_work_val(erts_aint32_t value) #ifdef ERTS_SMP static void handle_pending_exiters(ErtsProcList *); - +static void wake_scheduler(ErtsRunQueue *rq); #endif #if defined(ERTS_SMP) && defined(ERTS_ENABLE_LOCK_CHECK) @@ -402,11 +524,36 @@ erts_smp_lc_runq_is_locked(ErtsRunQueue *runq) } #endif + +static ERTS_INLINE Uint64 +ensure_later_proc_interval(Uint64 interval) +{ + return erts_smp_ensure_later_interval_nob(erts_ptab_interval(&erts_proc), interval); +} + +Uint64 +erts_get_proc_interval(void) +{ + return erts_smp_current_interval_nob(erts_ptab_interval(&erts_proc)); +} + +Uint64 +erts_ensure_later_proc_interval(Uint64 interval) +{ + return ensure_later_proc_interval(interval); +} + +Uint64 +erts_step_proc_interval(void) +{ + return erts_smp_step_interval_nob(erts_ptab_interval(&erts_proc)); +} + void erts_pre_init_process(void) { #ifdef USE_THREADS - erts_tsd_key_create(&sched_data_key); + erts_tsd_key_create(&sched_data_key, "erts_sched_data_key"); #endif #ifdef ERTS_ENABLE_LOCK_CHECK @@ -438,6 +585,18 @@ erts_pre_init_process(void) erts_psd_required_locks[ERTS_PSD_CALL_TIME_BP].set_locks = ERTS_PSD_CALL_TIME_BP_SET_LOCKS; + erts_psd_required_locks[ERTS_PSD_DELAYED_GC_TASK_QS].get_locks + = ERTS_PSD_DELAYED_GC_TASK_QS_GET_LOCKS; + erts_psd_required_locks[ERTS_PSD_DELAYED_GC_TASK_QS].set_locks + = ERTS_PSD_DELAYED_GC_TASK_QS_SET_LOCKS; + +#ifdef ERTS_DIRTY_SCHEDULERS + erts_psd_required_locks[ERTS_PSD_DIRTY_SCHED_TRAP_EXPORT].get_locks + = ERTS_PSD_DIRTY_SCHED_TRAP_EXPORT_GET_LOCKS; + erts_psd_required_locks[ERTS_PSD_DIRTY_SCHED_TRAP_EXPORT].set_locks + = ERTS_PSD_DIRTY_SCHED_TRAP_EXPORT_SET_LOCKS; +#endif + /* Check that we have locks for all entries */ for (ix = 0; ix < ERTS_PSD_SIZE; ix++) { ERTS_SMP_LC_ASSERT(erts_psd_required_locks[ix].get_locks); @@ -447,11 +606,18 @@ erts_pre_init_process(void) #endif } +#ifdef ERTS_SMP +static void +release_process(void *vproc) +{ + erts_smp_proc_dec_refc((Process *) vproc); +} +#endif + /* initialize the scheduler */ void -erts_init_process(int ncpu) +erts_init_process(int ncpu, int proc_tab_size, int legacy_proc_tab) { - Uint proc_bits = ERTS_PROC_BITS; #ifdef ERTS_SMP erts_disable_proc_not_running_opt = 0; @@ -460,25 +626,19 @@ erts_init_process(int ncpu) init_proclist_alloc(); - erts_smp_atomic32_init_nob(&process_count, 0); - - if (erts_use_r9_pids_ports) { - proc_bits = ERTS_R9_PROC_BITS; - ASSERT(erts_max_processes <= (1 << ERTS_R9_PROC_BITS)); - } - - process_tab = (Process**) erts_alloc(ERTS_ALC_T_PROC_TABLE, - erts_max_processes*sizeof(Process*)); - sys_memzero(process_tab, erts_max_processes * sizeof(Process*)); - - erts_smp_mtx_init(&proc_tab_mtx, "proc_tab"); - p_last = -1; - p_next = 0; - p_serial = 0; + erts_ptab_init_table(&erts_proc, + ERTS_ALC_T_PROC_TABLE, +#ifdef ERTS_SMP + release_process, +#else + NULL, +#endif + (ErtsPTabElementCommon *) &erts_invalid_process.common, + proc_tab_size, + sizeof(Process), + "process_table", + legacy_proc_tab); - p_serial_shift = erts_fit_in_bits(erts_max_processes - 1); - p_serial_mask = ((~(~((Uint) 0) << proc_bits)) >> p_serial_shift); - erts_process_tab_index_mask = ~(~((Uint) 0) << p_serial_shift); last_reductions = 0; last_exact_reductions = 0; erts_default_process_flags = 0; @@ -488,7 +648,6 @@ void erts_late_init_process(void) { int ix; - init_processes_bif(); erts_smp_spinlock_init(&erts_sched_stat.lock, "sched_stat"); for (ix = 0; ix < ERTS_NO_PRIO_LEVELS; ix++) { @@ -528,6 +687,7 @@ erts_late_init_process(void) static void init_sched_wall_time(ErtsSchedWallTime *swtp) { + swtp->need = erts_sched_balance_util; swtp->enabled = 0; swtp->start = 0; swtp->working.total = 0; @@ -550,27 +710,253 @@ sched_wall_time_ts(void) #endif } +#if ERTS_HAVE_SCHED_UTIL_BALANCING_SUPPORT + +#ifdef ARCH_64 + +static ERTS_INLINE Uint64 +aschedtime_read(ErtsAtomicSchedTime *var) +{ + return (Uint64) erts_atomic_read_nob((erts_atomic_t *) var); +} + +static ERTS_INLINE void +aschedtime_set(ErtsAtomicSchedTime *var, Uint64 val) +{ + erts_atomic_set_nob((erts_atomic_t *) var, (erts_aint_t) val); +} + +static ERTS_INLINE void +aschedtime_init(ErtsAtomicSchedTime *var) +{ + erts_atomic_init_nob((erts_atomic_t *) var, (erts_aint_t) 0); +} + +#elif defined(ARCH_32) + +static ERTS_INLINE Uint64 +aschedtime_read(ErtsAtomicSchedTime *var) +{ + erts_dw_aint_t dw; + erts_dw_atomic_read_nob((erts_dw_atomic_t *) var, &dw); +#ifdef ETHR_SU_DW_NAINT_T__ + return (Uint64) dw.dw_sint; +#else + { + Uint64 res; + res = (Uint64) ((Uint32) dw.sint[ERTS_DW_AINT_HIGH_WORD]); + res <<= 32; + res |= (Uint64) ((Uint32) dw.sint[ERTS_DW_AINT_LOW_WORD]); + return res; + } +#endif +} + +static ERTS_INLINE void +aschedtime_set(ErtsAtomicSchedTime *var, Uint64 val) +{ + erts_dw_aint_t dw; +#ifdef ETHR_SU_DW_NAINT_T__ + dw.dw_sint = (ETHR_SU_DW_NAINT_T__) val; +#else + dw.sint[ERTS_DW_AINT_LOW_WORD] = (erts_aint_t) (val & 0xffffffff); + dw.sint[ERTS_DW_AINT_HIGH_WORD] = (erts_aint_t) ((val >> 32) & 0xffffffff); +#endif + erts_dw_atomic_set_nob((erts_dw_atomic_t *) var, &dw); +} + +static ERTS_INLINE void +aschedtime_init(ErtsAtomicSchedTime *var) +{ + erts_dw_aint_t dw; + dw.sint[ERTS_DW_AINT_LOW_WORD] = (erts_aint_t) 0; + dw.sint[ERTS_DW_AINT_HIGH_WORD] = (erts_aint_t) 0; + erts_dw_atomic_init_nob((erts_dw_atomic_t *) var, &dw); +} + +#else +# error :-/ +#endif + +#define ERTS_GET_AVG_MAX_UNLOCKED_TRY 50 +#define ERTS_SCHED_AVG_UTIL_WRITE_MARKER (~((Uint64) 0)) + +/* Intervals in nanoseconds */ +#define ERTS_SCHED_UTIL_SHORT_INTERVAL ((Uint64) 1*1000*1000*1000) +#define ERTS_SCHED_UTIL_LONG_INTERVAL ((Uint64) 10*1000*1000*1000) + + +#define ERTS_SCHED_UTIL_IGNORE_IMBALANCE_DIFF 5000 /* ppm */ + +static ERTS_INLINE Uint64 +calc_sched_worktime(int is_working, Uint64 now, Uint64 last, + Uint64 interval, Uint64 old_worktime) +{ + Uint64 worktime; + Uint64 new; + + if (now <= last) + return old_worktime; + + new = now - last; + + if (new >= interval) + return is_working ? interval : (Uint64) 0; + + + /* + * Division by 1000 in order to avoid + * overflow. If changed update assertions + * in init_runq_sched_util(). + */ + worktime = old_worktime; + worktime *= (interval - new)/1000; + worktime /= (interval/1000); + if (is_working) + worktime += new; + + ASSERT(0 <= worktime && worktime <= interval); + + return worktime; +} + +static ERTS_INLINE void +update_avg_sched_util(ErtsSchedulerData *esdp, Uint64 now, int is_working) +{ + ErtsRunQueue *rq; + int worked; + Uint64 swt, lwt, last; + + rq = esdp->run_queue; + last = aschedtime_read(&rq->sched_util.last); + + if (now <= last) { + ASSERT(last == ERTS_SCHED_AVG_UTIL_WRITE_MARKER); + return; + } + + ASSERT(now >= last); + + worked = rq->sched_util.is_working; + + swt = calc_sched_worktime(worked, now, last, ERTS_SCHED_UTIL_SHORT_INTERVAL, + rq->sched_util.worktime.short_interval); + lwt = calc_sched_worktime(worked, now, last, ERTS_SCHED_UTIL_LONG_INTERVAL, + rq->sched_util.worktime.long_interval); + + aschedtime_set(&rq->sched_util.last, ERTS_SCHED_AVG_UTIL_WRITE_MARKER); + ERTS_THR_WRITE_MEMORY_BARRIER; + rq->sched_util.is_working = is_working; + rq->sched_util.worktime.short_interval = swt; + rq->sched_util.worktime.long_interval = lwt; + ERTS_THR_WRITE_MEMORY_BARRIER; + aschedtime_set(&rq->sched_util.last, now); +} + +int +erts_get_sched_util(ErtsRunQueue *rq, int initially_locked, int short_interval) +{ + /* Average scheduler utilization in ppm */ + int util, is_working, try = 0, locked = initially_locked; + Uint64 worktime, old_worktime, now, last, interval, *old_worktimep; + + if (short_interval) { + old_worktimep = &rq->sched_util.worktime.short_interval; + interval = ERTS_SCHED_UTIL_SHORT_INTERVAL; + } + else { + old_worktimep = &rq->sched_util.worktime.long_interval; + interval = ERTS_SCHED_UTIL_LONG_INTERVAL; + } + + while (1) { + Uint64 chk_last; + last = aschedtime_read(&rq->sched_util.last); + ERTS_THR_READ_MEMORY_BARRIER; + is_working = rq->sched_util.is_working; + old_worktime = *old_worktimep; + ERTS_THR_READ_MEMORY_BARRIER; + chk_last = aschedtime_read(&rq->sched_util.last); + if (chk_last == last) + break; + if (!locked) { + if (++try >= ERTS_GET_AVG_MAX_UNLOCKED_TRY) { + /* Writer will eventually block on runq-lock */ + erts_smp_runq_lock(rq); + locked = 1; + } + } + } + + if (!initially_locked && locked) + erts_smp_runq_unlock(rq); + + now = sched_wall_time_ts(); + worktime = calc_sched_worktime(is_working, now, last, interval, old_worktime); + + util = (int) ((worktime * 1000000)/interval); + + ASSERT(0 <= util && util <= 1000000); + + return util; +} + +static void +init_runq_sched_util(ErtsRunQueueSchedUtil *rqsu, int enabled) +{ + aschedtime_init(&rqsu->last); + if (!enabled) + aschedtime_set(&rqsu->last, ERTS_SCHED_AVG_UTIL_WRITE_MARKER); + rqsu->is_working = 0; + rqsu->worktime.short_interval = (Uint64) 0; + rqsu->worktime.long_interval = (Uint64) 0; + +#ifdef DEBUG + { + Uint64 intrvl; + /* + * If one of these asserts fail we may have + * overflow in calc_sched_worktime(). Which + * have to be fixed either by shrinking + * interval size, or fix calculation of + * worktime in calc_sched_worktime(). + */ + intrvl = ERTS_SCHED_UTIL_SHORT_INTERVAL; + ASSERT(intrvl*(intrvl/1000) > intrvl); + intrvl = ERTS_SCHED_UTIL_LONG_INTERVAL; + ASSERT(intrvl*(intrvl/1000) > intrvl); + } +#endif +} + +#endif /* ERTS_HAVE_SCHED_UTIL_BALANCING_SUPPORT */ + static ERTS_INLINE void sched_wall_time_change(ErtsSchedulerData *esdp, int working) { - if (esdp->sched_wall_time.enabled) { + if (esdp->sched_wall_time.need) { Uint64 ts = sched_wall_time_ts(); - if (working) { +#if ERTS_HAVE_SCHED_UTIL_BALANCING_SUPPORT + update_avg_sched_util(esdp, ts, working); +#endif + if (esdp->sched_wall_time.enabled) { + if (working) { #ifdef DEBUG - ASSERT(!esdp->sched_wall_time.working.currently); - esdp->sched_wall_time.working.currently = 1; + ASSERT(!esdp->sched_wall_time.working.currently); + esdp->sched_wall_time.working.currently = 1; #endif - ts -= esdp->sched_wall_time.start; - esdp->sched_wall_time.working.start = ts; - } - else { + ts -= esdp->sched_wall_time.start; + esdp->sched_wall_time.working.start = ts; + } + else { #ifdef DEBUG - ASSERT(esdp->sched_wall_time.working.currently); - esdp->sched_wall_time.working.currently = 0; + ASSERT(esdp->sched_wall_time.working.currently); + esdp->sched_wall_time.working.currently = 0; #endif - ts -= esdp->sched_wall_time.start; - ts -= esdp->sched_wall_time.working.start; - esdp->sched_wall_time.working.total += ts; + ts -= esdp->sched_wall_time.start; + ts -= esdp->sched_wall_time.working.start; + esdp->sched_wall_time.working.total += ts; + } } } } @@ -623,12 +1009,17 @@ reply_sched_wall_time(void *vswtrp) ErlHeapFragment *bp = NULL; ASSERT(esdp); - +#ifdef ERTS_DIRTY_SCHEDULERS + ASSERT(!ERTS_SCHEDULER_IS_DIRTY(esdp)); +#endif if (swtrp->set) { - if (!swtrp->enable && esdp->sched_wall_time.enabled) + if (!swtrp->enable && esdp->sched_wall_time.enabled) { + esdp->sched_wall_time.need = erts_sched_balance_util; esdp->sched_wall_time.enabled = 0; + } else if (swtrp->enable && !esdp->sched_wall_time.enabled) { Uint64 ts = sched_wall_time_ts(); + esdp->sched_wall_time.need = 1; esdp->sched_wall_time.enabled = 1; esdp->sched_wall_time.start = ts; esdp->sched_wall_time.working.total = 0; @@ -704,6 +1095,9 @@ erts_sched_wall_time_request(Process *c_p, int set, int enable) if (!set && !esdp->sched_wall_time.enabled) return THE_NON_VALUE; +#ifdef ERTS_DIRTY_SCHEDULERS + ASSERT(!ERTS_SCHEDULER_IS_DIRTY(esdp)); +#endif swtrp = swtreq_alloc(); ref = erts_make_ref(c_p); @@ -736,8 +1130,9 @@ static ERTS_INLINE ErtsProcList * proclist_create(Process *p) { ErtsProcList *plp = proclist_alloc(); - plp->pid = p->id; - plp->started = p->started; + ensure_later_proc_interval(p->common.u.alive.started_interval); + plp->pid = p->common.id; + plp->started_interval = p->common.u.alive.started_interval; return plp; } @@ -747,13 +1142,6 @@ proclist_destroy(ErtsProcList *plp) proclist_free(plp); } -static ERTS_INLINE int -proclist_same(ErtsProcList *plp, Process *p) -{ - return (plp->pid == p->id - && erts_cmp_timeval(&plp->started, &p->started) == 0); -} - ErtsProcList * erts_proclist_create(Process *p) { @@ -766,12 +1154,6 @@ erts_proclist_destroy(ErtsProcList *plp) proclist_destroy(plp); } -int -erts_proclist_same(ErtsProcList *plp, Process *p) -{ - return proclist_same(plp, p); -} - void * erts_psd_set_init(Process *p, ErtsProcLocks plocks, int ix, void *data) { @@ -903,6 +1285,53 @@ unset_aux_work_flags(ErtsSchedulerSleepInfo *ssi, erts_aint32_t flgs) #ifdef ERTS_SMP static ERTS_INLINE void +haw_chk_later_cleanup_op_wakeup(ErtsAuxWorkData *awdp, ErtsThrPrgrVal val) +{ + if (awdp->later_op.first + && erts_thr_progress_cmp(val, awdp->later_op.thr_prgr) >= 0) { + awdp->later_op.size = thr_prgr_later_cleanup_op_threshold; + } +} + +static ERTS_INLINE void +haw_thr_prgr_wakeup(ErtsAuxWorkData *awdp, ErtsThrPrgrVal val) +{ + int cmp = erts_thr_progress_cmp(val, awdp->latest_wakeup); + if (cmp != 0) { + if (cmp > 0) { + awdp->latest_wakeup = val; + haw_chk_later_cleanup_op_wakeup(awdp, val); + } + erts_thr_progress_wakeup(awdp->esdp, val); + } +} + +static ERTS_INLINE void +haw_thr_prgr_soft_wakeup(ErtsAuxWorkData *awdp, ErtsThrPrgrVal val) +{ + if (erts_thr_progress_cmp(val, awdp->latest_wakeup) > 0) { + awdp->latest_wakeup = val; + haw_chk_later_cleanup_op_wakeup(awdp, val); + erts_thr_progress_wakeup(awdp->esdp, val); + } +} + +static ERTS_INLINE void +haw_thr_prgr_later_cleanup_op_wakeup(ErtsAuxWorkData *awdp, ErtsThrPrgrVal val, UWord size) +{ + if (erts_thr_progress_cmp(val, awdp->latest_wakeup) > 0) { + awdp->later_op.thr_prgr = val; + if (awdp->later_op.size > size) + awdp->later_op.size -= size; + else { + awdp->latest_wakeup = val; + awdp->later_op.size = thr_prgr_later_cleanup_op_threshold; + erts_thr_progress_wakeup(awdp->esdp, val); + } + } +} + +static ERTS_INLINE void haw_thr_prgr_current_reset(ErtsAuxWorkData *awdp) { awdp->current_thr_prgr = ERTS_THR_PRGR_INVALID; @@ -923,6 +1352,9 @@ static ERTS_INLINE void haw_thr_prgr_current_check_progress(ErtsAuxWorkData *awdp) { ErtsThrPrgrVal current = awdp->current_thr_prgr; +#ifdef ERTS_DIRTY_SCHEDULERS + ASSERT(!awdp->esdp || !ERTS_SCHEDULER_IS_DIRTY(awdp->esdp)); +#endif if (current != ERTS_THR_PRGR_INVALID && !erts_thr_progress_equal(current, erts_thr_progress_current())) { /* @@ -939,6 +1371,10 @@ handle_delayed_aux_work_wakeup(ErtsAuxWorkData *awdp, erts_aint32_t aux_work, in { int jix, max_jix; +#ifdef ERTS_DIRTY_SCHEDULERS + ASSERT(!awdp->esdp || !ERTS_SCHEDULER_IS_DIRTY(awdp->esdp)); +#endif + ASSERT(awdp->delayed_wakeup.next != ERTS_DELAYED_WAKEUP_INFINITY); if (!waiting && awdp->delayed_wakeup.next > awdp->esdp->reductions) @@ -1060,8 +1496,7 @@ misc_aux_work_clean(ErtsThrQ_t *q, case ERTS_THR_Q_NEED_THR_PRGR: #ifdef ERTS_SMP set_aux_work_flags(awdp->ssi, ERTS_SSI_AUX_WORK_MISC_THR_PRGR); - erts_thr_progress_wakeup(awdp->esdp, - erts_thr_q_need_thr_progress(q)); + haw_thr_prgr_soft_wakeup(awdp, erts_thr_q_need_thr_progress(q)); #endif case ERTS_THR_Q_CLEAN: break; @@ -1095,6 +1530,9 @@ handle_misc_aux_work_thr_prgr(ErtsAuxWorkData *awdp, erts_aint32_t aux_work, int waiting) { +#ifdef ERTS_DIRTY_SCHEDULERS + ASSERT(!awdp->esdp || !ERTS_SCHEDULER_IS_DIRTY(awdp->esdp)); +#endif if (!erts_thr_progress_has_reached_this(haw_thr_prgr_current(awdp), awdp->misc.thr_prgr)) return aux_work & ~ERTS_SSI_AUX_WORK_MISC_THR_PRGR; @@ -1147,6 +1585,9 @@ erts_schedule_multi_misc_aux_work(int ignore_self, if (ignore_self) { ErtsSchedulerData *esdp = erts_get_scheduler_data(); +#ifdef ERTS_DIRTY_SCHEDULERS + ASSERT(!ERTS_SCHEDULER_IS_DIRTY(esdp)); +#endif if (esdp) self = (int) esdp->no; } @@ -1176,6 +1617,9 @@ handle_async_ready(ErtsAuxWorkData *awdp, int waiting) { ErtsSchedulerSleepInfo *ssi = awdp->ssi; +#ifdef ERTS_DIRTY_SCHEDULERS + ASSERT(!awdp->esdp || !ERTS_SCHEDULER_IS_DIRTY(awdp->esdp)); +#endif unset_aux_work_flags(ssi, ERTS_SSI_AUX_WORK_ASYNC_READY); if (erts_check_async_ready(awdp->async_ready.queue)) { if (set_aux_work_flags(ssi, ERTS_SSI_AUX_WORK_ASYNC_READY) @@ -1200,6 +1644,9 @@ handle_async_ready_clean(ErtsAuxWorkData *awdp, { void *thr_prgr_p; +#ifdef ERTS_DIRTY_SCHEDULERS + ASSERT(!awdp->esdp || !ERTS_SCHEDULER_IS_DIRTY(awdp->esdp)); +#endif #ifdef ERTS_SMP if (awdp->async_ready.need_thr_prgr && !erts_thr_progress_has_reached_this(haw_thr_prgr_current(awdp), @@ -1219,8 +1666,7 @@ handle_async_ready_clean(ErtsAuxWorkData *awdp, return aux_work & ~ERTS_SSI_AUX_WORK_ASYNC_READY_CLEAN; #ifdef ERTS_SMP case ERTS_ASYNC_READY_NEED_THR_PRGR: - erts_thr_progress_wakeup(awdp->esdp, - awdp->async_ready.thr_prgr); + haw_thr_prgr_soft_wakeup(awdp, awdp->async_ready.thr_prgr); awdp->async_ready.need_thr_prgr = 1; return aux_work & ~ERTS_SSI_AUX_WORK_ASYNC_READY_CLEAN; #endif @@ -1229,7 +1675,8 @@ handle_async_ready_clean(ErtsAuxWorkData *awdp, } } -#endif +#endif /* ERTS_USE_ASYNC_READY_Q */ + static ERTS_INLINE erts_aint32_t handle_fix_alloc(ErtsAuxWorkData *awdp, erts_aint32_t aux_work, int waiting) @@ -1237,6 +1684,9 @@ handle_fix_alloc(ErtsAuxWorkData *awdp, erts_aint32_t aux_work, int waiting) ErtsSchedulerSleepInfo *ssi = awdp->ssi; erts_aint32_t res; +#ifdef ERTS_DIRTY_SCHEDULERS + ASSERT(!awdp->esdp || !ERTS_SCHEDULER_IS_DIRTY(awdp->esdp)); +#endif unset_aux_work_flags(ssi, (ERTS_SSI_AUX_WORK_FIX_ALLOC_LOWER_LIM | ERTS_SSI_AUX_WORK_FIX_ALLOC_DEALLOC)); aux_work &= ~(ERTS_SSI_AUX_WORK_FIX_ALLOC_LOWER_LIM @@ -1256,7 +1706,7 @@ void erts_alloc_notify_delayed_dealloc(int ix) { ErtsSchedulerData *esdp = erts_get_scheduler_data(); - if (esdp) + if (esdp && !ERTS_SCHEDULER_IS_DIRTY(esdp)) schedule_aux_work_wakeup(&esdp->aux_work_data, ix, ERTS_SSI_AUX_WORK_DD); @@ -1265,6 +1715,17 @@ erts_alloc_notify_delayed_dealloc(int ix) ERTS_SSI_AUX_WORK_DD); } +void +erts_alloc_ensure_handle_delayed_dealloc_call(int ix) +{ +#ifdef DEBUG + ErtsSchedulerData *esdp = erts_get_scheduler_data(); + ASSERT(!esdp || (ERTS_SCHEDULER_IS_DIRTY(esdp) || ix == (int) esdp->no)); +#endif + set_aux_work_flags_wakeup_nob(ERTS_SCHED_SLEEP_INFO_IX(ix-1), + ERTS_SSI_AUX_WORK_DD); +} + static ERTS_INLINE erts_aint32_t handle_delayed_dealloc(ErtsAuxWorkData *awdp, erts_aint32_t aux_work, int waiting) { @@ -1273,6 +1734,9 @@ handle_delayed_dealloc(ErtsAuxWorkData *awdp, erts_aint32_t aux_work, int waitin ErtsThrPrgrVal wakeup = ERTS_THR_PRGR_INVALID; int more_work = 0; +#ifdef ERTS_DIRTY_SCHEDULERS + ASSERT(!awdp->esdp || !ERTS_SCHEDULER_IS_DIRTY(awdp->esdp)); +#endif unset_aux_work_flags(ssi, ERTS_SSI_AUX_WORK_DD); erts_alloc_scheduler_handle_delayed_dealloc((void *) awdp->esdp, &need_thr_progress, @@ -1293,7 +1757,7 @@ handle_delayed_dealloc(ErtsAuxWorkData *awdp, erts_aint32_t aux_work, int waitin awdp->dd.thr_prgr = wakeup; set_aux_work_flags(ssi, ERTS_SSI_AUX_WORK_DD_THR_PRGR); awdp->dd.thr_prgr = wakeup; - erts_thr_progress_wakeup(awdp->esdp, wakeup); + haw_thr_prgr_soft_wakeup(awdp, wakeup); } else if (awdp->dd.completed_callback) { awdp->dd.completed_callback(awdp->dd.completed_arg); @@ -1312,6 +1776,9 @@ handle_delayed_dealloc_thr_prgr(ErtsAuxWorkData *awdp, erts_aint32_t aux_work, i ErtsThrPrgrVal wakeup = ERTS_THR_PRGR_INVALID; ErtsThrPrgrVal current = haw_thr_prgr_current(awdp); +#ifdef ERTS_DIRTY_SCHEDULERS + ASSERT(!awdp->esdp || !ERTS_SCHEDULER_IS_DIRTY(awdp->esdp)); +#endif if (!erts_thr_progress_has_reached_this(current, awdp->dd.thr_prgr)) return aux_work & ~ERTS_SSI_AUX_WORK_DD_THR_PRGR; @@ -1334,7 +1801,7 @@ handle_delayed_dealloc_thr_prgr(ErtsAuxWorkData *awdp, erts_aint32_t aux_work, i if (wakeup == ERTS_THR_PRGR_INVALID) wakeup = erts_thr_progress_later(awdp->esdp); awdp->dd.thr_prgr = wakeup; - erts_thr_progress_wakeup(awdp->esdp, wakeup); + haw_thr_prgr_soft_wakeup(awdp, wakeup); } else { unset_aux_work_flags(ssi, ERTS_SSI_AUX_WORK_DD_THR_PRGR); @@ -1348,6 +1815,97 @@ handle_delayed_dealloc_thr_prgr(ErtsAuxWorkData *awdp, erts_aint32_t aux_work, i return aux_work & ~ERTS_SSI_AUX_WORK_DD_THR_PRGR; } +/* + * Handle scheduled thread progress later operations. + */ +#define ERTS_MAX_THR_PRGR_LATER_OPS 50 + +static ERTS_INLINE erts_aint32_t +handle_thr_prgr_later_op(ErtsAuxWorkData *awdp, erts_aint32_t aux_work, int waiting) +{ + int lops; + ErtsThrPrgrVal current = haw_thr_prgr_current(awdp); + +#ifdef ERTS_DIRTY_SCHEDULERS + ASSERT(!awdp->esdp || !ERTS_SCHEDULER_IS_DIRTY(awdp->esdp)); +#endif + for (lops = 0; lops < ERTS_MAX_THR_PRGR_LATER_OPS; lops++) { + ErtsThrPrgrLaterOp *lop = awdp->later_op.first; + if (!erts_thr_progress_has_reached_this(current, lop->later)) + return aux_work & ~ERTS_SSI_AUX_WORK_THR_PRGR_LATER_OP; + awdp->later_op.first = lop->next; + if (!awdp->later_op.first) { + awdp->later_op.last = NULL; + } + lop->func(lop->data); + if (!awdp->later_op.first) { + awdp->later_op.size = thr_prgr_later_cleanup_op_threshold; + awdp->later_op.last = NULL; + unset_aux_work_flags(awdp->ssi, + ERTS_SSI_AUX_WORK_THR_PRGR_LATER_OP); + return aux_work & ~ERTS_SSI_AUX_WORK_THR_PRGR_LATER_OP; + } + } + + return aux_work; +} + +static ERTS_INLINE ErtsThrPrgrVal +enqueue_later_op(ErtsSchedulerData *esdp, + void (*later_func)(void *), + void *later_data, + ErtsThrPrgrLaterOp *lop) +{ + ErtsThrPrgrVal later = erts_thr_progress_later(esdp); + ASSERT(esdp); + + lop->func = later_func; + lop->data = later_data; + lop->later = later; + lop->next = NULL; + if (!esdp->aux_work_data.later_op.last) + esdp->aux_work_data.later_op.first = lop; + else + esdp->aux_work_data.later_op.last->next = lop; + esdp->aux_work_data.later_op.last = lop; + set_aux_work_flags_wakeup_nob(esdp->ssi, + ERTS_SSI_AUX_WORK_THR_PRGR_LATER_OP); + return later; +} + +#endif /* ERTS_SMP */ + +void +erts_schedule_thr_prgr_later_op(void (*later_func)(void *), + void *later_data, + ErtsThrPrgrLaterOp *lop) +{ +#ifndef ERTS_SMP + later_func(later_data); +#else + ErtsSchedulerData *esdp = erts_get_scheduler_data(); + ErtsThrPrgrVal later = enqueue_later_op(esdp, later_func, later_data, lop); + haw_thr_prgr_wakeup(&esdp->aux_work_data, later); +#endif +} + +void +erts_schedule_thr_prgr_later_cleanup_op(void (*later_func)(void *), + void *later_data, + ErtsThrPrgrLaterOp *lop, + UWord size) +{ +#ifndef ERTS_SMP + later_func(later_data); +#else + ErtsSchedulerData *esdp = erts_get_scheduler_data(); + ErtsThrPrgrVal later = enqueue_later_op(esdp, later_func, later_data, lop); + haw_thr_prgr_later_cleanup_op_wakeup(&esdp->aux_work_data, later, size); +#endif +} + +#ifdef ERTS_SMP + static erts_atomic32_t completed_dealloc_count; static void @@ -1429,6 +1987,14 @@ erts_smp_notify_check_children_needed(void) for (i = 0; i < erts_no_schedulers; i++) set_aux_work_flags_wakeup_nob(ERTS_SCHED_SLEEP_INFO_IX(i), ERTS_SSI_AUX_WORK_CHECK_CHILDREN); +#ifdef ERTS_DIRTY_SCHEDULERS + for (i = 0; i < erts_no_dirty_cpu_schedulers; i++) + set_aux_work_flags_wakeup_nob(ERTS_DIRTY_CPU_SCHED_SLEEP_INFO_IX(i), + ERTS_SSI_AUX_WORK_CHECK_CHILDREN); + for (i = 0; i < erts_no_dirty_io_schedulers; i++) + set_aux_work_flags_wakeup_nob(ERTS_DIRTY_IO_SCHED_SLEEP_INFO_IX(i), + ERTS_SSI_AUX_WORK_CHECK_CHILDREN); +#endif } static ERTS_INLINE erts_aint32_t @@ -1460,37 +2026,32 @@ handle_reap_ports(ErtsAuxWorkData *awdp, erts_aint32_t aux_work, int waiting) unset_aux_work_flags(awdp->ssi, ERTS_SSI_AUX_WORK_REAP_PORTS); awdp->esdp->run_queue->halt_in_progress = 1; if (erts_smp_atomic32_dec_read_acqb(&erts_halt_progress) == 0) { - int i; + int i, max = erts_ptab_max(&erts_port); erts_smp_atomic32_set_nob(&erts_halt_progress, 1); - for (i = 0; i < erts_max_ports; i++) { - Port *prt = &erts_port[i]; - erts_smp_port_state_lock(prt); - if ((prt->status & (ERTS_PORT_SFLGS_INVALID_DRIVER_LOOKUP - | ERTS_PORT_SFLG_HALT))) { - erts_smp_port_state_unlock(prt); - continue; - } - /* We need to set the halt flag - get the port lock */ -#ifdef ERTS_SMP - erts_smp_atomic_inc_nob(&prt->refc); -#endif - erts_smp_port_state_unlock(prt); -#ifdef ERTS_SMP - erts_smp_mtx_lock(prt->lock); -#endif - if ((prt->status & (ERTS_PORT_SFLGS_INVALID_DRIVER_LOOKUP - | ERTS_PORT_SFLG_HALT))) { - erts_port_release(prt); + for (i = 0; i < max; i++) { + erts_aint32_t state; + Port *prt = erts_pix2port(i); + if (!prt) continue; - } - erts_port_status_bor_set(prt, ERTS_PORT_SFLG_HALT); - erts_smp_atomic32_inc_nob(&erts_halt_progress); - if (prt->status & (ERTS_PORT_SFLG_EXITING - | ERTS_PORT_SFLG_CLOSING)) { - erts_port_release(prt); + state = erts_atomic32_read_acqb(&prt->state); + if (state & (ERTS_PORT_SFLGS_INVALID_DRIVER_LOOKUP + | ERTS_PORT_SFLG_HALT)) continue; + + /* We need to set the halt flag - get the port lock */ + + erts_smp_port_lock(prt); + + state = erts_atomic32_read_nob(&prt->state); + if (!(state & (ERTS_PORT_SFLGS_INVALID_DRIVER_LOOKUP + | ERTS_PORT_SFLG_HALT))) { + state = erts_atomic32_read_bor_relb(&prt->state, + ERTS_PORT_SFLG_HALT); + erts_smp_atomic32_inc_nob(&erts_halt_progress); + if (!(state & (ERTS_PORT_SFLG_EXITING|ERTS_PORT_SFLG_CLOSING))) + erts_deliver_port_exit(prt, prt->common.id, am_killed, 0); } - erts_do_exit_port(prt, prt->id, am_killed); + erts_port_release(prt); } if (erts_smp_atomic32_dec_read_nob(&erts_halt_progress) == 0) { @@ -1573,6 +2134,11 @@ handle_aux_work(ErtsAuxWorkData *awdp, erts_aint32_t orig_aux_work, int waiting) | ERTS_SSI_AUX_WORK_FIX_ALLOC_DEALLOC), handle_fix_alloc); +#ifdef ERTS_SMP + HANDLE_AUX_WORK(ERTS_SSI_AUX_WORK_THR_PRGR_LATER_OP, + handle_thr_prgr_later_op); +#endif + #if ERTS_USE_ASYNC_READY_Q HANDLE_AUX_WORK(ERTS_SSI_AUX_WORK_ASYNC_READY, handle_async_ready); @@ -1645,6 +2211,9 @@ aux_work_timeout_early_init(int no_schedulers) p = (UWord) malloc((sizeof(ErtsAuxWorkTmo) + sizeof(erts_atomic32_t)*(no_schedulers+1)) + ERTS_CACHE_LINE_SIZE-1); + if (!p) { + ERTS_INTERNAL_ERROR("malloc failed to allocate memory!"); + } if (p & ERTS_CACHE_LINE_MASK) p = (p & ~ERTS_CACHE_LINE_MASK) + ERTS_CACHE_LINE_SIZE; ASSERT((p & ERTS_CACHE_LINE_MASK) == 0); @@ -1733,7 +2302,7 @@ erts_set_aux_work_timeout(int ix, erts_aint32_t type, int enable) ERTS_DBG_CHK_AUX_WORK_VAL(type); ERTS_DBG_CHK_AUX_WORK_VAL(erts_atomic32_read_nob(&aux_work_tmo->type[ix])); -// erts_fprintf(stderr, "t(%d, 0x%x, %d)\n", ix, type, enable); + /* erts_fprintf(stderr, "t(%d, 0x%x, %d)\n", ix, type, enable); */ if (!enable) { old = erts_atomic32_read_band_mb(&aux_work_tmo->type[ix], ~type); @@ -1763,8 +2332,8 @@ sched_waiting_sys(Uint no, ErtsRunQueue *rq) { ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(rq)); ASSERT(rq->waiting >= 0); - rq->flags |= (ERTS_RUNQ_FLG_OUT_OF_WORK - | ERTS_RUNQ_FLG_HALFTIME_OUT_OF_WORK); + (void) ERTS_RUNQ_FLGS_SET(rq, (ERTS_RUNQ_FLG_OUT_OF_WORK + | ERTS_RUNQ_FLG_HALFTIME_OUT_OF_WORK)); rq->waiting++; rq->waiting *= -1; rq->woken = 0; @@ -1776,6 +2345,9 @@ static ERTS_INLINE void sched_active_sys(Uint no, ErtsRunQueue *rq) { ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(rq)); +#ifdef ERTS_DIRTY_SCHEDULERS + ASSERT(!ERTS_RUNQ_IX_IS_DIRTY(rq->ix)); +#endif ASSERT(rq->waiting < 0); rq->waiting *= -1; rq->waiting--; @@ -1811,14 +2383,24 @@ try_set_sys_scheduling(void) #endif static ERTS_INLINE int -prepare_for_sys_schedule(void) +prepare_for_sys_schedule(ErtsSchedulerData *esdp) { #ifdef ERTS_SMP while (!erts_port_task_have_outstanding_io_tasks() && try_set_sys_scheduling()) { - if (!erts_port_task_have_outstanding_io_tasks()) - return 1; +#ifdef ERTS_SCHED_ONLY_POLL_SCHED_1 + if (esdp->no != 1) { + /* If we are not scheduler 1 and ERTS_SCHED_ONLY_POLL_SCHED_1 is used + then we make sure to wake scheduler 1 */ + ErtsRunQueue *rq = ERTS_RUNQ_IX(0); clear_sys_scheduling(); + wake_scheduler(rq); + return 0; + } +#endif + if (!erts_port_task_have_outstanding_io_tasks()) + return 1; + clear_sys_scheduling(); } return 0; #else @@ -1832,6 +2414,9 @@ static ERTS_INLINE void sched_change_waiting_sys_to_waiting(Uint no, ErtsRunQueue *rq) { ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(rq)); +#ifdef ERTS_DIRTY_SCHEDULERS + ASSERT(!ERTS_RUNQ_IX_IS_DIRTY(rq->ix)); +#endif ASSERT(rq->waiting < 0); rq->waiting *= -1; } @@ -1840,14 +2425,14 @@ static ERTS_INLINE void sched_waiting(Uint no, ErtsRunQueue *rq) { ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(rq)); - rq->flags |= (ERTS_RUNQ_FLG_OUT_OF_WORK - | ERTS_RUNQ_FLG_HALFTIME_OUT_OF_WORK); + (void) ERTS_RUNQ_FLGS_SET(rq, (ERTS_RUNQ_FLG_OUT_OF_WORK + | ERTS_RUNQ_FLG_HALFTIME_OUT_OF_WORK)); if (rq->waiting < 0) rq->waiting--; else rq->waiting++; rq->woken = 0; - if (erts_system_profile_flags.scheduler) + if (!ERTS_RUNQ_IX_IS_DIRTY(rq->ix) && erts_system_profile_flags.scheduler) profile_scheduler(make_small(no), am_inactive); } @@ -1859,7 +2444,7 @@ sched_active(Uint no, ErtsRunQueue *rq) rq->waiting++; else rq->waiting--; - if (erts_system_profile_flags.scheduler) + if (!ERTS_RUNQ_IX_IS_DIRTY(rq->ix) && erts_system_profile_flags.scheduler) profile_scheduler(make_small(no), am_active); } @@ -1871,11 +2456,9 @@ ongoing_multi_scheduling_block(void) } static ERTS_INLINE void -empty_runq(ErtsRunQueue *rq) +empty_runq_aux(ErtsRunQueue *rq, Uint32 old_flags) { - erts_aint32_t oifls = erts_smp_atomic32_read_band_nob(&rq->info_flags, - ~ERTS_RUNQ_IFLG_NONEMPTY); - if (oifls & ERTS_RUNQ_IFLG_NONEMPTY) { + if (!ERTS_RUNQ_IX_IS_DIRTY(rq->ix) && old_flags & ERTS_RUNQ_FLG_NONEMPTY) { #ifdef DEBUG erts_aint32_t empty = erts_smp_atomic32_read_nob(&no_empty_run_queues); /* @@ -1884,16 +2467,38 @@ empty_runq(ErtsRunQueue *rq) */ ASSERT(0 <= empty && empty < 2*erts_no_run_queues); #endif - erts_smp_atomic32_inc_relb(&no_empty_run_queues); + if (!erts_runq_supervision_interval) + erts_smp_atomic32_inc_relb(&no_empty_run_queues); + else { + erts_smp_atomic32_inc_mb(&no_empty_run_queues); + if (erts_atomic_read_nob(&runq_supervisor_sleeping)) + ethr_event_set(&runq_supervision_event); + } } } static ERTS_INLINE void +empty_runq(ErtsRunQueue *rq) +{ + Uint32 old_flags = ERTS_RUNQ_FLGS_UNSET(rq, ERTS_RUNQ_FLG_NONEMPTY|ERTS_RUNQ_FLG_PROTECTED); + empty_runq_aux(rq, old_flags); +} + +static ERTS_INLINE Uint32 +empty_protected_runq(ErtsRunQueue *rq) +{ + Uint32 old_flags = ERTS_RUNQ_FLGS_BSET(rq, + ERTS_RUNQ_FLG_NONEMPTY|ERTS_RUNQ_FLG_PROTECTED, + ERTS_RUNQ_FLG_PROTECTED); + empty_runq_aux(rq, old_flags); + return old_flags; +} + +static ERTS_INLINE void non_empty_runq(ErtsRunQueue *rq) { - erts_aint32_t oifls = erts_smp_atomic32_read_bor_nob(&rq->info_flags, - ERTS_RUNQ_IFLG_NONEMPTY); - if (!(oifls & ERTS_RUNQ_IFLG_NONEMPTY)) { + Uint32 old_flags = ERTS_RUNQ_FLGS_SET(rq, ERTS_RUNQ_FLG_NONEMPTY); + if (!ERTS_RUNQ_IX_IS_DIRTY(rq->ix) && (!(old_flags & ERTS_RUNQ_FLG_NONEMPTY))) { #ifdef DEBUG erts_aint32_t empty = erts_smp_atomic32_read_nob(&no_empty_run_queues); /* @@ -1902,10 +2507,29 @@ non_empty_runq(ErtsRunQueue *rq) */ ASSERT(0 < empty && empty <= 2*erts_no_run_queues); #endif - erts_smp_atomic32_dec_relb(&no_empty_run_queues); + if (!erts_runq_supervision_interval) + erts_smp_atomic32_dec_relb(&no_empty_run_queues); + else { + erts_aint32_t no; + no = erts_smp_atomic32_dec_read_mb(&no_empty_run_queues); + if (no > 0 && erts_atomic_read_nob(&runq_supervisor_sleeping)) + ethr_event_set(&runq_supervision_event); + } } } +void +erts_empty_runq(ErtsRunQueue *rq) +{ + empty_runq(rq); +} + +void +erts_non_empty_runq(ErtsRunQueue *rq) +{ + non_empty_runq(rq); +} + static erts_aint32_t sched_prep_spin_wait(ErtsSchedulerSleepInfo *ssi) { @@ -2051,6 +2675,13 @@ aux_thread(void *unused) ErtsThrPrgrCallbacks callbacks; int thr_prgr_active = 1; +#ifdef ERTS_ENABLE_LOCK_CHECK + { + char buf[] = "aux_thread"; + erts_lc_set_thread_name(buf); + } +#endif + ssi->event = erts_tse_fetch(); callbacks.arg = (void *) ssi; @@ -2082,6 +2713,8 @@ aux_thread(void *unused) erts_thr_progress_active(NULL, thr_prgr_active = 0); erts_thr_progress_prepare_wait(NULL); + ERTS_SCHED_FAIR_YIELD(); + flgs = sched_spin_wait(ssi, 0); if (flgs & ERTS_SSI_FLG_SLEEPING) { @@ -2119,18 +2752,37 @@ scheduler_wait(int *fcalls, ErtsSchedulerData *esdp, ErtsRunQueue *rq) ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(rq)); +#ifdef ERTS_DIRTY_SCHEDULERS + if (ERTS_RUNQ_IX_IS_DIRTY(rq->ix)) + erts_smp_spin_lock(&rq->sleepers.lock); +#endif flgs = sched_prep_spin_wait(ssi); if (flgs & ERTS_SSI_FLG_SUSPENDED) { /* Go suspend instead... */ +#ifdef ERTS_DIRTY_SCHEDULERS + if (ERTS_RUNQ_IX_IS_DIRTY(rq->ix)) + erts_smp_spin_unlock(&rq->sleepers.lock); +#endif return; } +#ifdef ERTS_DIRTY_SCHEDULERS + if (ERTS_RUNQ_IX_IS_DIRTY(rq->ix)) { + ssi->prev = NULL; + ssi->next = rq->sleepers.list; + if (rq->sleepers.list) + rq->sleepers.list->prev = ssi; + rq->sleepers.list = ssi; + erts_smp_spin_unlock(&rq->sleepers.lock); + } +#endif + /* * If all schedulers are waiting, one of them *should* * be waiting in erl_sys_schedule() */ - if (!prepare_for_sys_schedule()) { + if (ERTS_SCHEDULER_IS_DIRTY(esdp) || !prepare_for_sys_schedule(esdp)) { sched_waiting(esdp->no, rq); @@ -2140,30 +2792,35 @@ scheduler_wait(int *fcalls, ErtsSchedulerData *esdp, ErtsRunQueue *rq) tse_wait: - if (thr_prgr_active != working) + if (!ERTS_SCHEDULER_IS_DIRTY(esdp) && thr_prgr_active != working) sched_wall_time_change(esdp, thr_prgr_active); while (1) { aux_work = erts_atomic32_read_acqb(&ssi->aux_work); if (aux_work) { - if (!thr_prgr_active) { + if (!ERTS_SCHEDULER_IS_DIRTY(esdp) && !thr_prgr_active) { erts_thr_progress_active(esdp, thr_prgr_active = 1); sched_wall_time_change(esdp, 1); } aux_work = handle_aux_work(&esdp->aux_work_data, aux_work, 1); - if (aux_work && erts_thr_progress_update(esdp)) + if (aux_work && !ERTS_SCHEDULER_IS_DIRTY(esdp) + && erts_thr_progress_update(esdp)) erts_thr_progress_leader_update(esdp); } if (aux_work) flgs = erts_smp_atomic32_read_acqb(&ssi->flags); else { - if (thr_prgr_active) { - erts_thr_progress_active(esdp, thr_prgr_active = 0); - sched_wall_time_change(esdp, 0); + if (!ERTS_SCHEDULER_IS_DIRTY(esdp)) { + if (thr_prgr_active) { + erts_thr_progress_active(esdp, thr_prgr_active = 0); + sched_wall_time_change(esdp, 0); + } + erts_thr_progress_prepare_wait(esdp); } - erts_thr_progress_prepare_wait(esdp); + + ERTS_SCHED_FAIR_YIELD(); flgs = sched_spin_wait(ssi, spincount); if (flgs & ERTS_SSI_FLG_SLEEPING) { @@ -2178,7 +2835,8 @@ scheduler_wait(int *fcalls, ErtsSchedulerData *esdp, ErtsRunQueue *rq) } while (res == EINTR); } } - erts_thr_progress_finalize_wait(esdp); + if (!ERTS_SCHEDULER_IS_DIRTY(esdp)) + erts_thr_progress_finalize_wait(esdp); } if (!(flgs & ERTS_SSI_FLG_WAITING)) { @@ -2199,7 +2857,7 @@ scheduler_wait(int *fcalls, ErtsSchedulerData *esdp, ErtsRunQueue *rq) if (flgs & ~ERTS_SSI_FLG_SUSPENDED) erts_smp_atomic32_read_band_nob(&ssi->flags, ERTS_SSI_FLG_SUSPENDED); - if (!thr_prgr_active) { + if (!ERTS_SCHEDULER_IS_DIRTY(esdp) && !thr_prgr_active) { erts_thr_progress_active(esdp, thr_prgr_active = 1); sched_wall_time_change(esdp, 1); } @@ -2216,6 +2874,13 @@ scheduler_wait(int *fcalls, ErtsSchedulerData *esdp, ErtsRunQueue *rq) erts_smp_atomic32_set_relb(&function_calls, 0); *fcalls = 0; +#ifdef ERTS_DIRTY_SCHEDULERS + ASSERT(!ERTS_SCHEDULER_IS_DIRTY(esdp)); +#endif + +#ifdef ERTS_SCHED_ONLY_POLL_SCHED_1 + ASSERT(esdp->no == 1); +#endif sched_waiting_sys(esdp->no, rq); @@ -2236,7 +2901,6 @@ scheduler_wait(int *fcalls, ErtsSchedulerData *esdp, ErtsRunQueue *rq) sched_wall_time_change(esdp, working = 0); ASSERT(!erts_port_task_have_outstanding_io_tasks()); - erl_sys_schedule(1); /* Might give us something to do */ dt = erts_do_time_read_and_reset(); @@ -2282,7 +2946,7 @@ scheduler_wait(int *fcalls, ErtsSchedulerData *esdp, ErtsRunQueue *rq) * Got to check that we still got I/O tasks; otherwise * we have to continue checking for I/O... */ - if (!prepare_for_sys_schedule()) { + if (!prepare_for_sys_schedule(esdp)) { spincount *= ERTS_SCHED_TSE_SLEEP_SPINCOUNT_FACT; goto tse_wait; } @@ -2304,7 +2968,7 @@ scheduler_wait(int *fcalls, ErtsSchedulerData *esdp, ErtsRunQueue *rq) * Got to check that we still got I/O tasks; otherwise * we have to wait in erl_sys_schedule() after all... */ - if (!prepare_for_sys_schedule()) { + if (!prepare_for_sys_schedule(esdp)) { /* * Not allowed to wait in erl_sys_schedule; * do tse wait instead... @@ -2408,7 +3072,7 @@ ssi_flags_set_wake(ErtsSchedulerSleepInfo *ssi) } static void -wake_scheduler(ErtsRunQueue *rq, int incq) +wake_scheduler(ErtsRunQueue *rq) { ErtsSchedulerSleepInfo *ssi; erts_aint32_t flgs; @@ -2427,10 +3091,53 @@ wake_scheduler(ErtsRunQueue *rq, int incq) flgs = ssi_flags_set_wake(ssi); erts_sched_finish_poke(ssi, flgs); +} - if (incq && (flgs & ERTS_SSI_FLG_WAITING)) - non_empty_runq(rq); +#ifdef ERTS_DIRTY_SCHEDULERS +static void +wake_dirty_schedulers(ErtsRunQueue *rq, int one) +{ + ErtsSchedulerSleepInfo *ssi; + ErtsSchedulerSleepList *sl; + + ASSERT(ERTS_RUNQ_IX_IS_DIRTY(rq->ix)); + + sl = &rq->sleepers; + erts_smp_spin_lock(&sl->lock); + ssi = sl->list; + if (!ssi) { + erts_smp_spin_unlock(&sl->lock); + if (one) + wake_scheduler(rq); + } else if (one) { + erts_aint32_t flgs; + if (ssi->prev) + ssi->prev->next = ssi->next; + else { + ASSERT(sl->list == ssi); + sl->list = ssi->next; + } + if (ssi->next) + ssi->next->prev = ssi->prev; + + erts_smp_spin_unlock(&sl->lock); + + ERTS_THR_MEMORY_BARRIER; + flgs = ssi_flags_set_wake(ssi); + erts_sched_finish_poke(ssi, flgs); + } else { + sl->list = NULL; + erts_smp_spin_unlock(&sl->lock); + + ERTS_THR_MEMORY_BARRIER; + do { + ErtsSchedulerSleepInfo *wake_ssi = ssi; + ssi = ssi->next; + erts_sched_finish_poke(wake_ssi, ssi_flags_set_wake(wake_ssi)); + } while (ssi); + } } +#endif #define ERTS_NO_USED_RUNQS_SHIFT 16 #define ERTS_NO_RUNQS_MASK 0xffff @@ -2478,6 +3185,8 @@ set_no_active_runqs(int active) erts_aint32_t exp = erts_smp_atomic32_read_nob(&balance_info.no_runqs); while (1) { erts_aint32_t act, new; + if ((exp & ERTS_NO_RUNQS_MASK) == active) + break; new = exp & (ERTS_NO_RUNQS_MASK << ERTS_NO_USED_RUNQS_SHIFT); new |= active & ERTS_NO_RUNQS_MASK; act = erts_smp_atomic32_cmpxchg_nob(&balance_info.no_runqs, new, exp); @@ -2504,25 +3213,21 @@ try_inc_no_active_runqs(int active) return 0; } - static ERTS_INLINE int chk_wake_sched(ErtsRunQueue *crq, int ix, int activate) { - erts_aint32_t iflgs; + Uint32 flags; ErtsRunQueue *wrq; if (crq->ix == ix) return 0; wrq = ERTS_RUNQ_IX(ix); - iflgs = erts_smp_atomic32_read_nob(&wrq->info_flags); - if (!(iflgs & (ERTS_RUNQ_IFLG_SUSPENDED|ERTS_RUNQ_IFLG_NONEMPTY))) { + flags = ERTS_RUNQ_FLGS_GET(wrq); + if (!(flags & (ERTS_RUNQ_FLG_SUSPENDED|ERTS_RUNQ_FLG_NONEMPTY))) { if (activate) { - if (try_inc_no_active_runqs(ix+1)) { - erts_smp_xrunq_lock(crq, wrq); - wrq->flags &= ~ERTS_RUNQ_FLG_INACTIVE; - erts_smp_xrunq_unlock(crq, wrq); - } + if (try_inc_no_active_runqs(ix+1)) + (void) ERTS_RUNQ_FLGS_UNSET(wrq, ERTS_RUNQ_FLG_INACTIVE); } - wake_scheduler(wrq, 0); + wake_scheduler(wrq); return 1; } return 0; @@ -2569,8 +3274,14 @@ static ERTS_INLINE void smp_notify_inc_runq(ErtsRunQueue *runq) { #ifdef ERTS_SMP - if (runq) - wake_scheduler(runq, 1); + if (runq) { +#ifdef ERTS_DIRTY_SCHEDULERS + if (ERTS_RUNQ_IX_IS_DIRTY(runq->ix)) + wake_dirty_schedulers(runq, 1); + else +#endif + wake_scheduler(runq); + } #endif } @@ -2587,10 +3298,8 @@ erts_sched_notify_check_cpu_bind(void) int ix; for (ix = 0; ix < erts_no_run_queues; ix++) { ErtsRunQueue *rq = ERTS_RUNQ_IX(ix); - erts_smp_runq_lock(rq); - rq->flags |= ERTS_RUNQ_FLG_CHK_CPU_BIND; - erts_smp_runq_unlock(rq); - wake_scheduler(rq, 0); + (void) ERTS_RUNQ_FLGS_SET(rq, ERTS_RUNQ_FLG_CHK_CPU_BIND); + wake_scheduler(rq); } #else erts_sched_check_cpu_bind(erts_get_scheduler_data()); @@ -2598,409 +3307,609 @@ erts_sched_notify_check_cpu_bind(void) } -#ifdef ERTS_SMP +static ERTS_INLINE void +enqueue_process(ErtsRunQueue *runq, int prio, Process *p) +{ + ErtsRunPrioQueue *rpq; -ErtsRunQueue * -erts_prepare_emigrate(ErtsRunQueue *c_rq, ErtsRunQueueInfo *c_rqi, int prio) + ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(runq)); + + erts_smp_inc_runq_len(runq, &runq->procs.prio_info[prio], prio); + + if (prio == PRIORITY_LOW) { + p->schedule_count = RESCHEDULE_LOW; + rpq = &runq->procs.prio[PRIORITY_NORMAL]; + } + else { + p->schedule_count = 1; + rpq = &runq->procs.prio[prio]; + } + + p->next = NULL; + if (rpq->last) + rpq->last->next = p; + else + rpq->first = p; + rpq->last = p; +} + + +static ERTS_INLINE void +unqueue_process(ErtsRunQueue *runq, + ErtsRunPrioQueue *rpq, + ErtsRunQueueInfo *rqi, + int prio, + Process *prev_proc, + Process *proc) { - ASSERT(ERTS_CHK_RUNQ_FLG_EMIGRATE(c_rq->flags, prio)); - ASSERT(ERTS_CHK_RUNQ_FLG_EVACUATE(c_rq->flags, prio) - || c_rqi->len >= c_rqi->migrate.limit.this); + ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(runq)); - while (1) { - ErtsRunQueue *n_rq = c_rqi->migrate.runq; - ERTS_DBG_VERIFY_VALID_RUNQP(n_rq); - erts_smp_xrunq_lock(c_rq, n_rq); - - /* - * erts_smp_xrunq_lock() may release lock on c_rq! We have - * to check that we still want to emigrate and emigrate - * to the same run queue as before. - */ + if (prev_proc) + prev_proc->next = proc->next; + else + rpq->first = proc->next; + if (!proc->next) + rpq->last = prev_proc; - if (ERTS_CHK_RUNQ_FLG_EMIGRATE(c_rq->flags, prio)) { - Uint32 force = (ERTS_CHK_RUNQ_FLG_EVACUATE(c_rq->flags, prio) - | (c_rq->flags & ERTS_RUNQ_FLG_INACTIVE)); - if (force || c_rqi->len > c_rqi->migrate.limit.this) { - ErtsRunQueueInfo *n_rqi; - /* We still want to emigrate */ - - if (n_rq != c_rqi->migrate.runq) { - /* Ahh... run queue changed; need to do it all over again... */ - erts_smp_runq_unlock(n_rq); - continue; - } - else { + if (!rpq->first) + rpq->last = NULL; - if (prio == ERTS_PORT_PRIO_LEVEL) - n_rqi = &n_rq->ports.info; - else - n_rqi = &n_rq->procs.prio_info[prio]; + erts_smp_dec_runq_len(runq, rqi, prio); +} - if (force || (n_rqi->len < c_rqi->migrate.limit.other)) { - /* emigrate ... */ - return n_rq; - } - } - } - } - ASSERT(n_rq != c_rq); - erts_smp_runq_unlock(n_rq); - if (!(c_rq->flags & ERTS_RUNQ_FLG_INACTIVE)) { - /* No more emigrations to this runq */ - ERTS_UNSET_RUNQ_FLG_EMIGRATE(c_rq->flags, prio); - ERTS_DBG_SET_INVALID_RUNQP(c_rqi->migrate.runq, 0x3); - } +static ERTS_INLINE Process * +dequeue_process(ErtsRunQueue *runq, int prio_q, erts_aint32_t *statep) +{ + erts_aint32_t state; + int prio; + ErtsRunPrioQueue *rpq; + ErtsRunQueueInfo *rqi; + Process *p; + + ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(runq)); + + ASSERT(PRIORITY_NORMAL == prio_q + || PRIORITY_HIGH == prio_q + || PRIORITY_MAX == prio_q); + rpq = &runq->procs.prio[prio_q]; + p = rpq->first; + if (!p) return NULL; + + ERTS_SMP_DATA_DEPENDENCY_READ_MEMORY_BARRIER; + + state = erts_smp_atomic32_read_nob(&p->state); + if (statep) + *statep = state; + + prio = (int) ERTS_PSFLGS_GET_PRQ_PRIO(state); + + rqi = &runq->procs.prio_info[prio]; + + if (p) + unqueue_process(runq, rpq, rqi, prio, NULL, p); + + return p; +} + +static ERTS_INLINE int +check_requeue_process(ErtsRunQueue *rq, int prio_q) +{ + ErtsRunPrioQueue *rpq = &rq->procs.prio[prio_q]; + Process *p = rpq->first; + if (--p->schedule_count > 0 && p != rpq->last) { + /* reschedule */ + rpq->first = p->next; + rpq->last->next = p; + rpq->last = p; + p->next = NULL; + return 1; } + return 0; +} + +#ifdef ERTS_SMP + +static ErtsRunQueue * +check_immigration_need(ErtsRunQueue *c_rq, ErtsMigrationPath *mp, int prio) +{ + int len; + Uint32 f_flags, f_rq_flags; + ErtsRunQueue *f_rq; + + f_flags = mp->prio[prio].flags; + + ASSERT(ERTS_CHK_RUNQ_FLG_IMMIGRATE(mp->flags, prio)); + + f_rq = mp->prio[prio].runq; + if (!f_rq) + return NULL; + +#if ERTS_HAVE_SCHED_UTIL_BALANCING_SUPPORT + if (mp->sched_util) + return NULL; +#endif + + f_rq_flags = ERTS_RUNQ_FLGS_GET(f_rq); + if (f_rq_flags & ERTS_RUNQ_FLG_PROTECTED) + return NULL; + + if (ERTS_CHK_RUNQ_FLG_EVACUATE(f_flags, prio)) + return f_rq; + + if (f_rq_flags & ERTS_RUNQ_FLG_INACTIVE) + return f_rq; + + if (prio == ERTS_PORT_PRIO_LEVEL) + len = RUNQ_READ_LEN(&c_rq->ports.info.len); + else + len = RUNQ_READ_LEN(&c_rq->procs.prio_info[prio].len); + + if (len < mp->prio[prio].limit.this) { + if (prio == ERTS_PORT_PRIO_LEVEL) + len = RUNQ_READ_LEN(&f_rq->ports.info.len); + else + len = RUNQ_READ_LEN(&f_rq->procs.prio_info[prio].len); + + if (len > mp->prio[prio].limit.other) + return f_rq; + } + return NULL; } static void -immigrate(ErtsRunQueue *rq) +immigrate(ErtsRunQueue *c_rq, ErtsMigrationPath *mp) { - int prio; + Uint32 iflags, iflag; + erts_smp_runq_unlock(c_rq); - ASSERT(rq->flags & ERTS_RUNQ_FLGS_IMMIGRATE_QMASK); + ASSERT(erts_thr_progress_is_managed_thread()); - for (prio = 0; prio < ERTS_NO_PRIO_LEVELS; prio++) { - if (ERTS_CHK_RUNQ_FLG_IMMIGRATE(rq->flags, prio)) { - ErtsRunQueueInfo *rqi = (prio == ERTS_PORT_PRIO_LEVEL - ? &rq->ports.info - : &rq->procs.prio_info[prio]); - ErtsRunQueue *from_rq = rqi->migrate.runq; - int rq_locked, from_rq_locked; + iflags = mp->flags & ERTS_RUNQ_FLGS_IMMIGRATE_QMASK; - ERTS_DBG_VERIFY_VALID_RUNQP(from_rq); + iflag = iflags & -iflags; - rq_locked = 1; - from_rq_locked = 1; - erts_smp_xrunq_lock(rq, from_rq); - /* - * erts_smp_xrunq_lock() may release lock on rq! We have - * to check that we still want to immigrate from the same - * run queue as before. - */ - if (ERTS_CHK_RUNQ_FLG_IMMIGRATE(rq->flags, prio) - && from_rq == rqi->migrate.runq) { - ErtsRunQueueInfo *from_rqi = (prio == ERTS_PORT_PRIO_LEVEL - ? &from_rq->ports.info - : &from_rq->procs.prio_info[prio]); - if ((ERTS_CHK_RUNQ_FLG_EVACUATE(rq->flags, prio) - && ERTS_CHK_RUNQ_FLG_EVACUATE(from_rq->flags, prio) - && from_rqi->len) - || (from_rqi->len > rqi->migrate.limit.other - && rqi->len < rqi->migrate.limit.this)) { - if (prio == ERTS_PORT_PRIO_LEVEL) { - Port *prt = from_rq->ports.start; - if (prt) { - int prt_locked = 0; - (void) erts_port_migrate(prt, &prt_locked, - from_rq, &from_rq_locked, - rq, &rq_locked); - if (prt_locked) - erts_smp_port_unlock(prt); - } - } - else { - Process *proc; - ErtsRunPrioQueue *from_rpq; - from_rpq = (prio == PRIORITY_LOW - ? &from_rq->procs.prio[PRIORITY_NORMAL] - : &from_rq->procs.prio[prio]); - for (proc = from_rpq->first; proc; proc = proc->next) - if (proc->prio == prio && !proc->bound_runq) - break; - if (proc) { - ErtsProcLocks proc_locks = 0; - (void) erts_proc_migrate(proc, &proc_locks, - from_rq, &from_rq_locked, - rq, &rq_locked); - if (proc_locks) - erts_smp_proc_unlock(proc, proc_locks); - } + while (iflag) { + ErtsRunQueue *rq; + int prio; + + switch (iflag) { + case (MAX_BIT << ERTS_RUNQ_FLGS_IMMIGRATE_SHFT): + prio = PRIORITY_MAX; + break; + case (HIGH_BIT << ERTS_RUNQ_FLGS_IMMIGRATE_SHFT): + prio = PRIORITY_HIGH; + break; + case (NORMAL_BIT << ERTS_RUNQ_FLGS_IMMIGRATE_SHFT): + prio = PRIORITY_NORMAL; + break; + case (LOW_BIT << ERTS_RUNQ_FLGS_IMMIGRATE_SHFT): + prio = PRIORITY_LOW; + break; + case (PORT_BIT << ERTS_RUNQ_FLGS_IMMIGRATE_SHFT): + prio = ERTS_PORT_PRIO_LEVEL; + break; + default: + erl_exit(ERTS_ABORT_EXIT, + "%s:%d:%s(): Invalid immigrate queue mask", + __FILE__, __LINE__, __func__); + prio = 0; + break; + } + + iflags &= ~iflag; + iflag = iflags & -iflags; + + rq = check_immigration_need(c_rq, mp, prio); + if (rq) { + erts_smp_runq_lock(rq); + if (prio == ERTS_PORT_PRIO_LEVEL) { + Port *prt; + prt = erts_dequeue_port(rq); + if (prt) + RUNQ_SET_RQ(&prt->run_queue, c_rq); + erts_smp_runq_unlock(rq); + if (prt) { + /* port might terminate while we have no lock... */ + rq = erts_port_runq(prt); + if (rq) { + if (rq != c_rq) + erl_exit(ERTS_ABORT_EXIT, + "%s:%d:%s(): Internal error", + __FILE__, __LINE__, __func__); + erts_enqueue_port(c_rq, prt); + if (!iflag) + return; /* done */ + erts_smp_runq_unlock(c_rq); } } - else { - ERTS_UNSET_RUNQ_FLG_IMMIGRATE(rq->flags, prio); - ERTS_DBG_SET_INVALID_RUNQP(rqi->migrate.runq, 0x1); + } + else { + ErtsRunPrioQueue *rpq = &rq->procs.prio[prio == PRIORITY_LOW + ? PRIORITY_NORMAL + : prio]; + Process *prev_proc = NULL; + Process *proc = rpq->first; + int rq_locked = 1; + + while (proc) { + erts_aint32_t state; + state = erts_smp_atomic32_read_acqb(&proc->state); + if (!(ERTS_PSFLG_BOUND & state) + && (prio == (int) ERTS_PSFLGS_GET_PRQ_PRIO(state))) { + ErtsRunQueueInfo *rqi = &rq->procs.prio_info[prio]; + unqueue_process(rq, rpq, rqi, prio, prev_proc, proc); + erts_smp_runq_unlock(rq); + RUNQ_SET_RQ(&proc->run_queue, c_rq); + rq_locked = 0; + + erts_smp_runq_lock(c_rq); + enqueue_process(c_rq, prio, proc); + if (!iflag) + return; /* done */ + erts_smp_runq_unlock(c_rq); + break; + } + prev_proc = proc; + proc = proc->next; } + if (rq_locked) + erts_smp_runq_unlock(rq); } - if (from_rq_locked) - erts_smp_runq_unlock(from_rq); - if (!rq_locked) - erts_smp_runq_lock(rq); } } + + erts_smp_runq_lock(c_rq); } -static void -evacuate_run_queue(ErtsRunQueue *evac_rq, ErtsRunQueue *rq) +static ERTS_INLINE void +suspend_run_queue(ErtsRunQueue *rq) { - Port *prt; - int notify_to_rq = 0; - int prio; - int prt_locked = 0; - int rq_locked = 0; - int evac_rq_locked = 1; - ErtsMigrateResult mres; + erts_smp_atomic32_read_bor_nob(&rq->scheduler->ssi->flags, + ERTS_SSI_FLG_SUSPENDED); + (void) ERTS_RUNQ_FLGS_SET(rq, ERTS_RUNQ_FLG_SUSPENDED); - erts_smp_runq_lock(evac_rq); + wake_scheduler(rq); +} - erts_smp_atomic32_read_bor_nob(&evac_rq->scheduler->ssi->flags, - ERTS_SSI_FLG_SUSPENDED); +static void scheduler_ix_resume_wake(Uint ix); +static void scheduler_ssi_resume_wake(ErtsSchedulerSleepInfo *ssi); - evac_rq->flags &= ~ERTS_RUNQ_FLGS_IMMIGRATE_QMASK; - evac_rq->flags |= (ERTS_RUNQ_FLGS_EMIGRATE_QMASK - | ERTS_RUNQ_FLGS_EVACUATE_QMASK - | ERTS_RUNQ_FLG_SUSPENDED); +static ERTS_INLINE void +resume_run_queue(ErtsRunQueue *rq) +{ + int pix; - erts_smp_atomic32_read_bor_nob(&evac_rq->info_flags, ERTS_RUNQ_IFLG_SUSPENDED); - /* - * Need to set up evacuation paths first since we - * may release the run queue lock on evac_rq - * when evacuating. - */ - evac_rq->misc.evac_runq = rq; - evac_rq->ports.info.migrate.runq = rq; - for (prio = 0; prio < ERTS_NO_PROC_PRIO_LEVELS; prio++) - evac_rq->procs.prio_info[prio].migrate.runq = rq; + erts_smp_runq_lock(rq); - /* Evacuate scheduled misc ops */ + (void) ERTS_RUNQ_FLGS_READ_BSET(rq, + (ERTS_RUNQ_FLG_OUT_OF_WORK + | ERTS_RUNQ_FLG_HALFTIME_OUT_OF_WORK + | ERTS_RUNQ_FLG_SUSPENDED), + (ERTS_RUNQ_FLG_OUT_OF_WORK + | ERTS_RUNQ_FLG_HALFTIME_OUT_OF_WORK)); - if (evac_rq->misc.start) { - rq_locked = 1; - erts_smp_xrunq_lock(evac_rq, rq); - if (rq->misc.end) - rq->misc.end->next = evac_rq->misc.start; - else - rq->misc.start = evac_rq->misc.start; - rq->misc.end = evac_rq->misc.end; - evac_rq->misc.start = NULL; - evac_rq->misc.end = NULL; + rq->check_balance_reds = ERTS_RUNQ_CALL_CHECK_BALANCE_REDS; + for (pix = 0; pix < ERTS_NO_PROC_PRIO_LEVELS; pix++) { + rq->procs.prio_info[pix].max_len = 0; + rq->procs.prio_info[pix].reds = 0; } + rq->ports.info.max_len = 0; + rq->ports.info.reds = 0; + rq->max_len = 0; - /* Evacuate scheduled ports */ - prt = evac_rq->ports.start; - while (prt) { - mres = erts_port_migrate(prt, &prt_locked, - evac_rq, &evac_rq_locked, - rq, &rq_locked); - if (mres == ERTS_MIGRATE_SUCCESS) - notify_to_rq = 1; - if (prt_locked) - erts_smp_port_unlock(prt); - if (!evac_rq_locked) { - evac_rq_locked = 1; - erts_smp_runq_lock(evac_rq); - } - prt = evac_rq->ports.start; + erts_smp_runq_unlock(rq); + +#ifdef ERTS_DIRTY_SCHEDULERS + if (!ERTS_RUNQ_IX_IS_DIRTY(rq->ix)) +#endif + scheduler_ix_resume_wake(rq->ix); +} + +typedef struct { + Process *first; + Process *last; +} ErtsStuckBoundProcesses; + +static void +schedule_bound_processes(ErtsRunQueue *rq, + ErtsStuckBoundProcesses *sbpp) +{ + Process *proc, *next; + ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(rq)); + + proc = sbpp->first; + while (proc) { + erts_aint32_t state = erts_smp_atomic32_read_acqb(&proc->state); + next = proc->next; + enqueue_process(rq, (int) ERTS_PSFLGS_GET_PRQ_PRIO(state), proc); + proc = next; } +} - /* Evacuate scheduled processes */ - for (prio = 0; prio < ERTS_NO_PROC_PRIO_LEVELS; prio++) { - Process *proc; +static void +evacuate_run_queue(ErtsRunQueue *rq, + ErtsStuckBoundProcesses *sbpp) +{ + int prio_q; + ErtsRunQueue *to_rq; + ErtsMigrationPaths *mps; + ErtsMigrationPath *mp = NULL; - switch (prio) { - case PRIORITY_MAX: - case PRIORITY_HIGH: - case PRIORITY_NORMAL: - proc = evac_rq->procs.prio[prio].first; - while (proc) { - ErtsProcLocks proc_locks = 0; + ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(rq)); - /* Bound processes are stuck... */ - while (proc->bound_runq) { - proc = proc->next; - if (!proc) - goto end_of_proc; - } + (void) ERTS_RUNQ_FLGS_UNSET(rq, ERTS_RUNQ_FLG_PROTECTED); - mres = erts_proc_migrate(proc, &proc_locks, - evac_rq, &evac_rq_locked, - rq, &rq_locked); - if (mres == ERTS_MIGRATE_SUCCESS) - notify_to_rq = 1; - if (proc_locks) - erts_smp_proc_unlock(proc, proc_locks); - if (!evac_rq_locked) { - erts_smp_runq_lock(evac_rq); - evac_rq_locked = 1; - } +#ifdef ERTS_DIRTY_SCHEDULERS + if (!ERTS_RUNQ_IX_IS_DIRTY(rq->ix)) +#endif + { + mps = erts_get_migration_paths_managed(); + mp = &mps->mpath[rq->ix]; + } - proc = evac_rq->procs.prio[prio].first; - } + /* Evacuate scheduled misc ops */ - end_of_proc: + if (rq->misc.start) { + ErtsMiscOpList *start, *end; -#ifdef DEBUG - for (proc = evac_rq->procs.prio[prio].first; - proc; - proc = proc->next) { - ASSERT(proc->bound_runq); - } +#ifdef ERTS_DIRTY_SCHEDULERS + ASSERT(!ERTS_RUNQ_IX_IS_DIRTY(rq->ix)); #endif - break; - case PRIORITY_LOW: - break; - default: - ASSERT(!"Invalid process priority"); - break; + to_rq = mp->misc_evac_runq; + if (!to_rq) + return; + + start = rq->misc.start; + end = rq->misc.end; + rq->misc.start = NULL; + rq->misc.end = NULL; + erts_smp_runq_unlock(rq); + + erts_smp_runq_lock(to_rq); + if (to_rq->misc.end) + to_rq->misc.end->next = start; + else + to_rq->misc.start = start; + + to_rq->misc.end = end; + + non_empty_runq(to_rq); + + erts_smp_runq_unlock(to_rq); + smp_notify_inc_runq(to_rq); + erts_smp_runq_lock(to_rq); + } + + if (rq->ports.start) { + Port *prt; + +#ifdef ERTS_DIRTY_SCHEDULERS + ASSERT(!ERTS_RUNQ_IX_IS_DIRTY(rq->ix)); +#endif + to_rq = mp->prio[ERTS_PORT_PRIO_LEVEL].runq; + if (!to_rq) + return; + + /* Evacuate scheduled ports */ + prt = rq->ports.start; + while (prt) { + ErtsRunQueue *prt_rq; + prt = erts_dequeue_port(rq); + RUNQ_SET_RQ(&prt->run_queue, to_rq); + erts_smp_runq_unlock(rq); + /* + * The port might terminate while + * we have no lock on it... + */ + prt_rq = erts_port_runq(prt); + if (prt_rq) { + if (prt_rq != to_rq) + erl_exit(ERTS_ABORT_EXIT, + "%s:%d:%s() internal error\n", + __FILE__, __LINE__, __func__); + erts_enqueue_port(to_rq, prt); + erts_smp_runq_unlock(to_rq); + } + erts_smp_runq_lock(rq); + prt = rq->ports.start; } + smp_notify_inc_runq(to_rq); } - if (rq_locked) - erts_smp_runq_unlock(rq); + /* Evacuate scheduled processes */ + for (prio_q = 0; prio_q < ERTS_NO_PROC_PRIO_QUEUES; prio_q++) { + erts_aint32_t state; + Process *proc; + int notify = 0; +#ifdef ERTS_DIRTY_SCHEDULERS + int requeue; +#endif + to_rq = NULL; - if (evac_rq_locked) - erts_smp_runq_unlock(evac_rq); +#ifdef ERTS_DIRTY_SCHEDULERS + if (!ERTS_RUNQ_IX_IS_DIRTY(rq->ix)) +#endif + { + if (!mp->prio[prio_q].runq) + return; + if (prio_q == PRIORITY_NORMAL && !mp->prio[PRIORITY_LOW].runq) + return; + } + + proc = dequeue_process(rq, prio_q, &state); + while (proc) { +#ifdef ERTS_DIRTY_SCHEDULERS + requeue = 1; +#endif + if (ERTS_PSFLG_BOUND & state) { + /* Bound processes get stuck here... */ + proc->next = NULL; + if (sbpp->last) + sbpp->last->next = proc; + else + sbpp->first = proc; + sbpp->last = proc; +#ifdef ERTS_DIRTY_SCHEDULERS + requeue = 0; +#endif + } +#ifdef ERTS_DIRTY_SCHEDULERS + else if (state & ERTS_PSFLG_DIRTY_CPU_PROC_IN_Q) { + erts_aint32_t old; + old = erts_smp_atomic32_read_band_nob(&proc->state, + ~(ERTS_PSFLG_DIRTY_CPU_PROC + | ERTS_PSFLG_DIRTY_CPU_PROC_IN_Q)); + /* assert that no other dirty flags are set */ + ASSERT(!(old & (ERTS_PSFLG_DIRTY_IO_PROC|ERTS_PSFLG_DIRTY_IO_PROC_IN_Q))); + } else if (state & ERTS_PSFLG_DIRTY_IO_PROC_IN_Q) { + erts_aint32_t old; + old = erts_smp_atomic32_read_band_nob(&proc->state, + ~(ERTS_PSFLG_DIRTY_IO_PROC + | ERTS_PSFLG_DIRTY_IO_PROC_IN_Q)); + /* assert that no other dirty flags are set */ + ASSERT(!(old & (ERTS_PSFLG_DIRTY_CPU_PROC|ERTS_PSFLG_DIRTY_CPU_PROC_IN_Q))); + } + if (requeue) { +#else + else { +#endif + int prio = (int) ERTS_PSFLGS_GET_PRQ_PRIO(state); + erts_smp_runq_unlock(rq); + +#ifdef ERTS_DIRTY_SCHEDULERS + if (ERTS_RUNQ_IX_IS_DIRTY(rq->ix)) + /* + * dirty run queues evacuate only to run + * queue 0 during multi-scheduling blocking + */ + to_rq = ERTS_RUNQ_IX(0); + else +#endif + to_rq = mp->prio[prio].runq; + RUNQ_SET_RQ(&proc->run_queue, to_rq); - if (notify_to_rq) - smp_notify_inc_runq(rq); + erts_smp_runq_lock(to_rq); + enqueue_process(to_rq, prio, proc); + erts_smp_runq_unlock(to_rq); + notify = 1; - wake_scheduler(evac_rq, 0); + erts_smp_runq_lock(rq); + } + proc = dequeue_process(rq, prio_q, &state); + } + if (notify) + smp_notify_inc_runq(to_rq); + } } static int -try_steal_task_from_victim(ErtsRunQueue *rq, int *rq_lockedp, ErtsRunQueue *vrq) +try_steal_task_from_victim(ErtsRunQueue *rq, int *rq_lockedp, ErtsRunQueue *vrq, Uint32 flags) { - Process *proc; - int vrq_locked; + Uint32 procs_qmask = flags & ERTS_RUNQ_FLGS_PROCS_QMASK; + int max_prio_bit; + ErtsRunPrioQueue *rpq; - if (*rq_lockedp) - erts_smp_xrunq_lock(rq, vrq); - else - erts_smp_runq_lock(vrq); - vrq_locked = 1; + if (*rq_lockedp) { + erts_smp_runq_unlock(rq); + *rq_lockedp = 0; + } - ERTS_SMP_LC_CHK_RUNQ_LOCK(rq, *rq_lockedp); - ERTS_SMP_LC_CHK_RUNQ_LOCK(vrq, vrq_locked); + ERTS_SMP_LC_ASSERT(!erts_smp_lc_runq_is_locked(rq)); + + erts_smp_runq_lock(vrq); if (rq->halt_in_progress) - goto try_steal_port; + goto no_procs; /* * Check for a runnable process to steal... */ - switch (vrq->flags & ERTS_RUNQ_FLGS_PROCS_QMASK) { - case MAX_BIT: - case MAX_BIT|HIGH_BIT: - case MAX_BIT|NORMAL_BIT: - case MAX_BIT|LOW_BIT: - case MAX_BIT|HIGH_BIT|NORMAL_BIT: - case MAX_BIT|HIGH_BIT|LOW_BIT: - case MAX_BIT|NORMAL_BIT|LOW_BIT: - case MAX_BIT|HIGH_BIT|NORMAL_BIT|LOW_BIT: - for (proc = vrq->procs.prio[PRIORITY_MAX].last; - proc; - proc = proc->prev) { - if (!proc->bound_runq) - break; - } - if (proc) + while (procs_qmask) { + Process *prev_proc; + Process *proc; + + max_prio_bit = procs_qmask & -procs_qmask; + switch (max_prio_bit) { + case MAX_BIT: + rpq = &vrq->procs.prio[PRIORITY_MAX]; break; - case HIGH_BIT: - case HIGH_BIT|NORMAL_BIT: - case HIGH_BIT|LOW_BIT: - case HIGH_BIT|NORMAL_BIT|LOW_BIT: - for (proc = vrq->procs.prio[PRIORITY_HIGH].last; - proc; - proc = proc->prev) { - if (!proc->bound_runq) - break; - } - if (proc) + case HIGH_BIT: + rpq = &vrq->procs.prio[PRIORITY_HIGH]; break; - case NORMAL_BIT: - case LOW_BIT: - case NORMAL_BIT|LOW_BIT: - for (proc = vrq->procs.prio[PRIORITY_NORMAL].last; - proc; - proc = proc->prev) { - if (!proc->bound_runq) - break; - } - if (proc) + case NORMAL_BIT: + case LOW_BIT: + rpq = &vrq->procs.prio[PRIORITY_NORMAL]; break; - case 0: - proc = NULL; - break; - default: - ASSERT(!"Invalid queue mask"); - proc = NULL; - break; - } + case 0: + goto no_procs; + default: + ASSERT(!"Invalid queue mask"); + goto no_procs; + } + + prev_proc = NULL; + proc = rpq->first; - if (proc) { - ErtsProcLocks proc_locks = 0; - int res; - ErtsMigrateResult mres; - mres = erts_proc_migrate(proc, &proc_locks, - vrq, &vrq_locked, - rq, rq_lockedp); - if (proc_locks) - erts_smp_proc_unlock(proc, proc_locks); - res = !0; - switch (mres) { - case ERTS_MIGRATE_FAILED_RUNQ_SUSPENDED: - res = 0; - case ERTS_MIGRATE_SUCCESS: - if (vrq_locked) + while (proc) { + erts_aint32_t state = erts_smp_atomic32_read_acqb(&proc->state); + if (!(ERTS_PSFLG_BOUND & state)) { + /* Steal process */ + int prio = (int) ERTS_PSFLGS_GET_PRQ_PRIO(state); + ErtsRunQueueInfo *rqi = &vrq->procs.prio_info[prio]; + unqueue_process(vrq, rpq, rqi, prio, prev_proc, proc); erts_smp_runq_unlock(vrq); - return res; - default: /* Other failures */ - break; - } - } + RUNQ_SET_RQ(&proc->run_queue, rq); - ERTS_SMP_LC_CHK_RUNQ_LOCK(rq, *rq_lockedp); - ERTS_SMP_LC_CHK_RUNQ_LOCK(vrq, vrq_locked); + erts_smp_runq_lock(rq); + *rq_lockedp = 1; + enqueue_process(rq, prio, proc); + return !0; + } + prev_proc = proc; + proc = proc->next; + } - if (!vrq_locked) { - if (*rq_lockedp) - erts_smp_xrunq_lock(rq, vrq); - else - erts_smp_runq_lock(vrq); - vrq_locked = 1; + procs_qmask &= ~max_prio_bit; } - try_steal_port: +no_procs: - ERTS_SMP_LC_CHK_RUNQ_LOCK(rq, *rq_lockedp); - ERTS_SMP_LC_CHK_RUNQ_LOCK(vrq, vrq_locked); + ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(vrq)); /* * Check for a runnable port to steal... */ - if (vrq->ports.info.len) { - Port *prt = vrq->ports.end; - int prt_locked = 0; - int res; - ErtsMigrateResult mres; - - mres = erts_port_migrate(prt, &prt_locked, - vrq, &vrq_locked, - rq, rq_lockedp); - if (prt_locked) - erts_smp_port_unlock(prt); - res = !0; - switch (mres) { - case ERTS_MIGRATE_FAILED_RUNQ_SUSPENDED: - res = 0; - case ERTS_MIGRATE_SUCCESS: - if (vrq_locked) - erts_smp_runq_unlock(vrq); - return res; - default: /* Other failures */ - break; + if (vrq->ports.start) { + ErtsRunQueue *prt_rq; + Port *prt = erts_dequeue_port(vrq); + RUNQ_SET_RQ(&prt->run_queue, rq); + erts_smp_runq_unlock(vrq); + + /* + * The port might terminate while + * we have no lock on it... + */ + + prt_rq = erts_port_runq(prt); + if (!prt_rq) + return 0; + else { + if (prt_rq != rq) + erl_exit(ERTS_ABORT_EXIT, + "%s:%d:%s() internal error\n", + __FILE__, __LINE__, __func__); + *rq_lockedp = 1; + erts_enqueue_port(rq, prt); + return !0; } } - if (vrq_locked) - erts_smp_runq_unlock(vrq); + erts_smp_runq_unlock(vrq); return 0; } @@ -3010,9 +3919,10 @@ static ERTS_INLINE int check_possible_steal_victim(ErtsRunQueue *rq, int *rq_lockedp, int vix) { ErtsRunQueue *vrq = ERTS_RUNQ_IX(vix); - erts_aint32_t iflgs = erts_smp_atomic32_read_nob(&vrq->info_flags); - if (iflgs & ERTS_RUNQ_IFLG_NONEMPTY) - return try_steal_task_from_victim(rq, rq_lockedp, vrq); + Uint32 flags = ERTS_RUNQ_FLGS_GET(vrq); + if ((flags & (ERTS_RUNQ_FLG_NONEMPTY + | ERTS_RUNQ_FLG_PROTECTED)) == ERTS_RUNQ_FLG_NONEMPTY) + return try_steal_task_from_victim(rq, rq_lockedp, vrq, flags); else return 0; } @@ -3022,15 +3932,12 @@ static int try_steal_task(ErtsRunQueue *rq) { int res, rq_locked, vix, active_rqs, blnc_rqs; + Uint32 flags; - /* - * We are not allowed to steal jobs to this run queue - * if it is suspended. Note that it might get suspended - * at any time when we don't have the lock on the run - * queue. - */ - if (rq->flags & ERTS_RUNQ_FLG_SUSPENDED) - return 0; + /* Protect jobs we steal from getting stolen from us... */ + flags = empty_protected_runq(rq); + if (flags & ERTS_RUNQ_FLG_SUSPENDED) + return 0; /* go suspend instead... */ res = 0; rq_locked = 1; @@ -3107,6 +4014,9 @@ typedef struct { int full_reds_history_change; int oowc; int max_len; +#if ERTS_HAVE_SCHED_UTIL_BALANCING_SUPPORT + int sched_util; +#endif } ErtsRunQueueBalance; static ErtsRunQueueBalance *run_queue_info; @@ -3149,16 +4059,130 @@ do { \ ASSERT(sum__ == (RQ)->full_reds_history_sum); \ } while (0); +#define ERTS_PRE_ALLOCED_MPATHS 8 + +erts_atomic_t erts_migration_paths; + +static struct { + size_t size; + ErtsMigrationPaths *freelist; + struct { + ErtsMigrationPaths *first; + ErtsMigrationPaths *last; + } retired; +} mpaths; + +static void +init_migration_paths(void) +{ + int qix, i; + char *p; + ErtsMigrationPaths *mps; + + mpaths.size = sizeof(ErtsMigrationPaths); + mpaths.size += sizeof(ErtsMigrationPath)*(erts_no_schedulers-1); + mpaths.size = ERTS_ALC_CACHE_LINE_ALIGN_SIZE(mpaths.size); + + p = erts_alloc_permanent_cache_aligned(ERTS_ALC_T_LL_MPATHS, + (mpaths.size + * ERTS_PRE_ALLOCED_MPATHS)); + mpaths.freelist = NULL; + for (i = 0; i < ERTS_PRE_ALLOCED_MPATHS-1; i++) { + mps = (ErtsMigrationPaths *) p; + mps->next = mpaths.freelist; + mpaths.freelist = mps; + p += mpaths.size; + } + + mps = (ErtsMigrationPaths *) p; + mps->block = NULL; + for (qix = 0; qix < erts_no_run_queues; qix++) { + int pix; + mps->mpath[qix].flags = 0; + mps->mpath[qix].misc_evac_runq = NULL; + for (pix = 0; pix < ERTS_NO_PRIO_LEVELS; pix++) { + mps->mpath[qix].prio[pix].limit.this = -1; + mps->mpath[qix].prio[pix].limit.other = -1; + mps->mpath[qix].prio[pix].runq = NULL; + mps->mpath[qix].prio[pix].flags = 0; + } + } + erts_atomic_init_wb(&erts_migration_paths, (erts_aint_t) mps); +} + +static ERTS_INLINE ErtsMigrationPaths * +alloc_mpaths(void) +{ + void *block; + ErtsMigrationPaths *res; + ERTS_SMP_LC_ASSERT(erts_smp_lc_mtx_is_locked(&balance_info.update_mtx)); + + res = mpaths.freelist; + if (res) { + mpaths.freelist = res->next; + res->block = NULL; + return res; + } + res = erts_alloc(ERTS_ALC_T_SL_MPATHS, + mpaths.size+ERTS_CACHE_LINE_SIZE); + block = (void *) res; + if (((UWord) res) & ERTS_CACHE_LINE_MASK) + res = (ErtsMigrationPaths *) ((((UWord) res) & ~ERTS_CACHE_LINE_MASK) + + ERTS_CACHE_LINE_SIZE); + res->block = block; + return res; +} + +static ERTS_INLINE void +retire_mpaths(ErtsMigrationPaths *mps) +{ + ErtsThrPrgrVal current; + + ERTS_SMP_LC_ASSERT(erts_smp_lc_mtx_is_locked(&balance_info.update_mtx)); + + current = erts_thr_progress_current(); + + while (mpaths.retired.first) { + ErtsMigrationPaths *tmp = mpaths.retired.first; + if (!erts_thr_progress_has_reached_this(current, tmp->thr_prgr)) + break; + mpaths.retired.first = tmp->next; + if (tmp->block) { + erts_free(ERTS_ALC_T_SL_MPATHS, tmp->block); + } + else { + tmp->next = mpaths.freelist; + mpaths.freelist = tmp; + } + } + + if (!mpaths.retired.first) + mpaths.retired.last = NULL; + + mps->thr_prgr = erts_thr_progress_later(NULL); + mps->next = NULL; + + if (mpaths.retired.last) + mpaths.retired.last->next = mps; + else + mpaths.retired.first = mps; + mpaths.retired.last = mps; +} + static void check_balance(ErtsRunQueue *c_rq) { #if ERTS_MAX_PROCESSES >= (1 << 27) # error check_balance() assumes ERTS_MAX_PROCESS < (1 << 27) #endif + ErtsMigrationPaths *new_mpaths, *old_mpaths; ErtsRunQueueBalance avg = {0}; Sint64 scheds_reds, full_scheds_reds; int forced, active, current_active, oowc, half_full_scheds, full_scheds, mmax_len, blnc_no_rqs, qix, pix, freds_hist_ix; +#if ERTS_HAVE_SCHED_UTIL_BALANCING_SUPPORT + int sched_util_balancing; +#endif if (erts_smp_atomic32_xchg_nob(&balance_info.checking_balance, 1)) { c_rq->check_balance_reds = INT_MAX; @@ -3180,9 +4204,9 @@ check_balance(ErtsRunQueue *c_rq) ERTS_FOREACH_RUNQ(rq, { if (rq->waiting) - rq->flags |= ERTS_RUNQ_FLG_HALFTIME_OUT_OF_WORK; + (void) ERTS_RUNQ_FLGS_SET(rq, ERTS_RUNQ_FLG_HALFTIME_OUT_OF_WORK); else - rq->flags &= ~ERTS_RUNQ_FLG_HALFTIME_OUT_OF_WORK; + (void) ERTS_RUNQ_FLGS_UNSET(rq, ERTS_RUNQ_FLG_HALFTIME_OUT_OF_WORK); rq->check_balance_reds = ERTS_RUNQ_CALL_CHECK_BALANCE_REDS; }); @@ -3214,6 +4238,10 @@ check_balance(ErtsRunQueue *c_rq) return; } +#if ERTS_HAVE_SCHED_UTIL_BALANCING_SUPPORT + sched_util_balancing = 0; +#endif + freds_hist_ix = balance_info.full_reds_history_index; balance_info.full_reds_history_index++; if (balance_info.full_reds_history_index >= ERTS_FULL_REDS_HISTORY_SIZE) @@ -3224,7 +4252,7 @@ check_balance(ErtsRunQueue *c_rq) ErtsRunQueue *rq = ERTS_RUNQ_IX(qix); erts_smp_runq_lock(rq); - run_queue_info[qix].flags = rq->flags; + run_queue_info[qix].flags = ERTS_RUNQ_FLGS_GET_NOB(rq); for (pix = 0; pix < ERTS_NO_PROC_PRIO_LEVELS; pix++) { run_queue_info[qix].prio[pix].max_len = rq->procs.prio_info[pix].max_len; @@ -3244,7 +4272,12 @@ check_balance(ErtsRunQueue *c_rq) run_queue_info[qix].oowc = rq->out_of_work_count; run_queue_info[qix].max_len = rq->max_len; rq->check_balance_reds = INT_MAX; - + +#if ERTS_HAVE_SCHED_UTIL_BALANCING_SUPPORT + if (erts_sched_balance_util) + run_queue_info[qix].sched_util = erts_get_sched_util(rq, 1, 0); +#endif + erts_smp_runq_unlock(rq); } @@ -3314,8 +4347,38 @@ check_balance(ErtsRunQueue *c_rq) mmax_len = run_queue_info[qix].max_len; } - if (!erts_sched_compact_load) + if (!erts_sched_compact_load) { +#if ERTS_HAVE_SCHED_UTIL_BALANCING_SUPPORT + if (erts_sched_balance_util && full_scheds < blnc_no_rqs) { + int avg_util = 0; + + for (qix = 0; qix < blnc_no_rqs; qix++) + avg_util += run_queue_info[qix].sched_util; + + avg_util /= blnc_no_rqs; /* in ppm */ + + sched_util_balancing = 1; + /* + * In order to avoid renaming a large amount of fields + * we write utilization values instead of lenght values + * in the 'max_len' and 'migration_limit' fields... + */ + for (qix = 0; qix < blnc_no_rqs; qix++) { + run_queue_info[qix].flags = 0; /* Reset for later use... */ + for (pix = 0; pix < ERTS_NO_PRIO_LEVELS; pix++) { + run_queue_info[qix].prio[pix].emigrate_to = -1; + run_queue_info[qix].prio[pix].immigrate_from = -1; + run_queue_info[qix].prio[pix].avail = 100; + run_queue_info[qix].prio[pix].max_len = run_queue_info[qix].sched_util; + run_queue_info[qix].prio[pix].migration_limit = avg_util; + } + } + active = blnc_no_rqs; + goto setup_migration_paths; + } +#endif goto all_active; + } if (!forced && half_full_scheds != blnc_no_rqs) { int min = 1; @@ -3432,15 +4495,30 @@ check_balance(ErtsRunQueue *c_rq) } } +#if ERTS_HAVE_SCHED_UTIL_BALANCING_SUPPORT + setup_migration_paths: +#endif + /* Setup migration paths for all priorities */ for (pix = 0; pix < ERTS_NO_PRIO_LEVELS; pix++) { int low = 0, high = 0; for (qix = 0; qix < blnc_no_rqs; qix++) { int len_diff = run_queue_info[qix].prio[pix].max_len; len_diff -= run_queue_info[qix].prio[pix].migration_limit; + #ifdef DBG_PRINT if (pix == 2) erts_fprintf(stderr, "%d ", len_diff); #endif + +#if ERTS_HAVE_SCHED_UTIL_BALANCING_SUPPORT + if (sched_util_balancing + && -ERTS_SCHED_UTIL_IGNORE_IMBALANCE_DIFF <= len_diff + && len_diff <= ERTS_SCHED_UTIL_IGNORE_IMBALANCE_DIFF) { + /* ignore minor imbalance */ + len_diff = 0; + } +#endif + run_queue_compare[qix].qix = qix; run_queue_compare[qix].len = len_diff; if (len_diff != 0) { @@ -3558,47 +4636,30 @@ erts_fprintf(stderr, "--------------------------------\n"); set_no_active_runqs(active); balance_info.halftime = 1; - erts_smp_atomic32_set_nob(&balance_info.checking_balance, 0); + new_mpaths = alloc_mpaths(); + + /* Write migration paths */ - /* Write migration paths and reset balance statistics in all queues */ for (qix = 0; qix < blnc_no_rqs; qix++) { int mqix; - Uint32 flags; - ErtsRunQueue *rq = ERTS_RUNQ_IX(qix); - ErtsRunQueueInfo *rqi; - flags = run_queue_info[qix].flags; - erts_smp_runq_lock(rq); - flags |= (rq->flags & ~ERTS_RUNQ_FLGS_MIGRATION_INFO); - ASSERT(!(flags & ERTS_RUNQ_FLG_OUT_OF_WORK)); - if (rq->waiting) - flags |= ERTS_RUNQ_FLG_OUT_OF_WORK; - - rq->full_reds_history_sum - = run_queue_info[qix].full_reds_history_sum; - rq->full_reds_history[freds_hist_ix] - = run_queue_info[qix].full_reds_history_change; + Uint32 flags = run_queue_info[qix].flags; + ErtsMigrationPath *mp = &new_mpaths->mpath[qix]; - ERTS_DBG_CHK_FULL_REDS_HISTORY(rq); +#if ERTS_HAVE_SCHED_UTIL_BALANCING_SUPPORT + mp->sched_util = sched_util_balancing; +#endif + mp->flags = flags; + mp->misc_evac_runq = NULL; - rq->out_of_work_count = 0; - rq->flags = flags; - rq->max_len = rq->len; for (pix = 0; pix < ERTS_NO_PRIO_LEVELS; pix++) { - rqi = (pix == ERTS_PORT_PRIO_LEVEL - ? &rq->ports.info - : &rq->procs.prio_info[pix]); - rqi->max_len = rqi->len; - rqi->reds = 0; if (!(ERTS_CHK_RUNQ_FLG_EMIGRATE(flags, pix) | ERTS_CHK_RUNQ_FLG_IMMIGRATE(flags, pix))) { ASSERT(run_queue_info[qix].prio[pix].immigrate_from < 0); ASSERT(run_queue_info[qix].prio[pix].emigrate_to < 0); -#ifdef DEBUG - rqi->migrate.limit.this = -1; - rqi->migrate.limit.other = -1; - ERTS_DBG_SET_INVALID_RUNQP(rqi->migrate.runq, 0x2); -#endif - + mp->prio[pix].limit.this = -1; + mp->prio[pix].limit.other = -1; + mp->prio[pix].runq = NULL; + mp->prio[pix].flags = 0; } else if (ERTS_CHK_RUNQ_FLG_EMIGRATE(flags, pix)) { ASSERT(!ERTS_CHK_RUNQ_FLG_IMMIGRATE(flags, pix)); @@ -3606,11 +4667,12 @@ erts_fprintf(stderr, "--------------------------------\n"); ASSERT(run_queue_info[qix].prio[pix].emigrate_to >= 0); mqix = run_queue_info[qix].prio[pix].emigrate_to; - rqi->migrate.limit.this + mp->prio[pix].limit.this = run_queue_info[qix].prio[pix].migration_limit; - rqi->migrate.limit.other + mp->prio[pix].limit.other = run_queue_info[mqix].prio[pix].migration_limit; - rqi->migrate.runq = ERTS_RUNQ_IX(mqix); + mp->prio[pix].runq = ERTS_RUNQ_IX(mqix); + mp->prio[pix].flags = run_queue_info[mqix].flags; } else { ASSERT(ERTS_CHK_RUNQ_FLG_IMMIGRATE(flags, pix)); @@ -3618,24 +4680,141 @@ erts_fprintf(stderr, "--------------------------------\n"); ASSERT(run_queue_info[qix].prio[pix].immigrate_from >= 0); mqix = run_queue_info[qix].prio[pix].immigrate_from; - rqi->migrate.limit.this + mp->prio[pix].limit.this = run_queue_info[qix].prio[pix].migration_limit; - rqi->migrate.limit.other + mp->prio[pix].limit.other = run_queue_info[mqix].prio[pix].migration_limit; - rqi->migrate.runq = ERTS_RUNQ_IX(mqix); + mp->prio[pix].runq = ERTS_RUNQ_IX(mqix); + mp->prio[pix].flags = run_queue_info[mqix].flags; } } + } + + old_mpaths = erts_get_migration_paths_managed(); + + /* Keep offline run-queues as is */ + for (qix = blnc_no_rqs; qix < erts_no_schedulers; qix++) { + ErtsMigrationPath *nmp = &new_mpaths->mpath[qix]; + ErtsMigrationPath *omp = &old_mpaths->mpath[qix]; + + nmp->flags = omp->flags; + nmp->misc_evac_runq = omp->misc_evac_runq; + + for (pix = 0; pix < ERTS_NO_PRIO_LEVELS; pix++) { + nmp->prio[pix].limit.this = omp->prio[pix].limit.this; + nmp->prio[pix].limit.other = omp->prio[pix].limit.other; + nmp->prio[pix].runq = omp->prio[pix].runq; + nmp->prio[pix].flags = omp->prio[pix].flags; + } + } + + + /* Publish new migration paths... */ + erts_atomic_set_wb(&erts_migration_paths, (erts_aint_t) new_mpaths); + + /* Reset balance statistics in all online queues */ + for (qix = 0; qix < blnc_no_rqs; qix++) { + Uint32 flags = run_queue_info[qix].flags; + ErtsRunQueue *rq = ERTS_RUNQ_IX(qix); + + erts_smp_runq_lock(rq); + ASSERT(!(flags & ERTS_RUNQ_FLG_OUT_OF_WORK)); + if (rq->waiting) + flags |= ERTS_RUNQ_FLG_OUT_OF_WORK; + + rq->full_reds_history_sum + = run_queue_info[qix].full_reds_history_sum; + rq->full_reds_history[freds_hist_ix] + = run_queue_info[qix].full_reds_history_change; + + ERTS_DBG_CHK_FULL_REDS_HISTORY(rq); + + rq->out_of_work_count = 0; + (void) ERTS_RUNQ_FLGS_READ_BSET(rq, ERTS_RUNQ_FLGS_MIGRATION_INFO, flags); + + rq->max_len = rq->len; + for (pix = 0; pix < ERTS_NO_PRIO_LEVELS; pix++) { + ErtsRunQueueInfo *rqi; + rqi = (pix == ERTS_PORT_PRIO_LEVEL + ? &rq->ports.info + : &rq->procs.prio_info[pix]); + erts_smp_reset_max_len(rq, rqi); + rqi->reds = 0; + } rq->check_balance_reds = ERTS_RUNQ_CALL_CHECK_BALANCE_REDS; erts_smp_runq_unlock(rq); } + erts_smp_atomic32_set_nob(&balance_info.checking_balance, 0); + balance_info.n++; + retire_mpaths(old_mpaths); erts_smp_mtx_unlock(&balance_info.update_mtx); erts_smp_runq_lock(c_rq); } +static void +change_no_used_runqs(int used) +{ + ErtsMigrationPaths *new_mpaths, *old_mpaths; + int qix; + erts_smp_mtx_lock(&balance_info.update_mtx); + set_no_used_runqs(used); + + old_mpaths = erts_get_migration_paths_managed(); + new_mpaths = alloc_mpaths(); + + /* Write migration paths... */ + + for (qix = 0; qix < used; qix++) { + int pix; + ErtsMigrationPath *omp = &old_mpaths->mpath[qix]; + ErtsMigrationPath *nmp = &new_mpaths->mpath[qix]; + + nmp->flags = omp->flags & ~ERTS_RUNQ_FLGS_MIGRATION_QMASKS; + nmp->misc_evac_runq = NULL; + + for (pix = 0; pix < ERTS_NO_PRIO_LEVELS; pix++) { + nmp->prio[pix].limit.this = -1; + nmp->prio[pix].limit.other = -1; + nmp->prio[pix].runq = NULL; + nmp->prio[pix].flags = 0; + } + } + for (qix = used; qix < erts_no_run_queues; qix++) { + int pix; + ErtsRunQueue *to_rq = ERTS_RUNQ_IX(qix % used); + ErtsMigrationPath *nmp = &new_mpaths->mpath[qix]; + + nmp->flags = (ERTS_RUNQ_FLGS_EMIGRATE_QMASK + | ERTS_RUNQ_FLGS_EVACUATE_QMASK); + nmp->misc_evac_runq = to_rq; + for (pix = 0; pix < ERTS_NO_PRIO_LEVELS; pix++) { + nmp->prio[pix].limit.this = -1; + nmp->prio[pix].limit.other = -1; + nmp->prio[pix].runq = to_rq; + nmp->prio[pix].flags = 0; + } + } + + /* ... and publish them. */ + erts_atomic_set_wb(&erts_migration_paths, (erts_aint_t) new_mpaths); + + retire_mpaths(old_mpaths); + + /* Make sure that we balance soon... */ + balance_info.forced_check_balance = 1; + + erts_smp_mtx_unlock(&balance_info.update_mtx); + + erts_smp_runq_lock(ERTS_RUNQ_IX(0)); + ERTS_RUNQ_IX(0)->check_balance_reds = 0; + erts_smp_runq_unlock(ERTS_RUNQ_IX(0)); +} + + #endif /* #ifdef ERTS_SMP */ Uint @@ -3663,11 +4842,11 @@ typedef enum { } ErtsSchedWakeupOtherThreshold; typedef enum { - ERTS_SCHED_WAKEUP_OTHER_TYPE_PROPOSAL, + ERTS_SCHED_WAKEUP_OTHER_TYPE_DEFAULT, ERTS_SCHED_WAKEUP_OTHER_TYPE_LEGACY } ErtsSchedWakeupOtherType; -/* First proposal */ +/* Default */ #define ERTS_WAKEUP_OTHER_LIMIT_VERY_HIGH (200*CONTEXT_REDS) #define ERTS_WAKEUP_OTHER_LIMIT_HIGH (50*CONTEXT_REDS) @@ -3684,7 +4863,7 @@ typedef enum { #define ERTS_WAKEUP_OTHER_DEC_SHIFT 2 #define ERTS_WAKEUP_OTHER_FIXED_INC (CONTEXT_REDS/10) -/* To be legacy */ +/* Legacy */ #define ERTS_WAKEUP_OTHER_LIMIT_VERY_HIGH_LEGACY (200*CONTEXT_REDS) #define ERTS_WAKEUP_OTHER_LIMIT_HIGH_LEGACY (50*CONTEXT_REDS) @@ -3703,11 +4882,11 @@ static struct { int limit; int dec_shift; int dec_mask; - void (*check)(ErtsRunQueue *rq); + void (*check)(ErtsRunQueue *rq, Uint32 flags); } wakeup_other; static void -wakeup_other_check(ErtsRunQueue *rq) +wakeup_other_check(ErtsRunQueue *rq, Uint32 flags) { int wo_reds = rq->wakeup_other_reds; if (wo_reds) { @@ -3723,11 +4902,20 @@ wakeup_other_check(ErtsRunQueue *rq) rq->wakeup_other += (left_len*wo_reds + ERTS_WAKEUP_OTHER_FIXED_INC); if (rq->wakeup_other > wakeup_other.limit) { - int empty_rqs = - erts_smp_atomic32_read_acqb(&no_empty_run_queues); - if (empty_rqs != 0) - wake_scheduler_on_empty_runq(rq); - rq->wakeup_other = 0; +#ifdef ERTS_DIRTY_SCHEDULERS + if (ERTS_RUNQ_IX_IS_DIRTY(rq->ix) && rq->waiting) + wake_dirty_schedulers(rq, 1); + else +#endif + { + int empty_rqs = + erts_smp_atomic32_read_acqb(&no_empty_run_queues); + if (flags & ERTS_RUNQ_FLG_PROTECTED) + (void) ERTS_RUNQ_FLGS_UNSET(rq, ERTS_RUNQ_FLG_PROTECTED); + if (empty_rqs != 0) + wake_scheduler_on_empty_runq(rq); + rq->wakeup_other = 0; + } } } rq->wakeup_other_reds = 0; @@ -3769,18 +4957,21 @@ wakeup_other_set_limit(void) } static void -wakeup_other_check_legacy(ErtsRunQueue *rq) +wakeup_other_check_legacy(ErtsRunQueue *rq, Uint32 flags) { int wo_reds = rq->wakeup_other_reds; if (wo_reds) { - if (rq->len < 2) { + erts_aint32_t len = rq->len; + if (len < 2) { rq->wakeup_other -= ERTS_WAKEUP_OTHER_DEC_LEGACY*wo_reds; if (rq->wakeup_other < 0) rq->wakeup_other = 0; } else if (rq->wakeup_other < wakeup_other.limit) - rq->wakeup_other += rq->len*wo_reds + ERTS_WAKEUP_OTHER_FIXED_INC_LEGACY; + rq->wakeup_other += len*wo_reds + ERTS_WAKEUP_OTHER_FIXED_INC_LEGACY; else { + if (flags & ERTS_RUNQ_FLG_PROTECTED) + (void) ERTS_RUNQ_FLGS_UNSET(rq, ERTS_RUNQ_FLG_PROTECTED); if (erts_smp_atomic32_read_acqb(&no_empty_run_queues) != 0) { wake_scheduler_on_empty_runq(rq); rq->wakeup_other = 0; @@ -3817,7 +5008,7 @@ static void set_wakeup_other_data(void) { switch (wakeup_other.type) { - case ERTS_SCHED_WAKEUP_OTHER_TYPE_PROPOSAL: + case ERTS_SCHED_WAKEUP_OTHER_TYPE_DEFAULT: wakeup_other.check = wakeup_other_check; wakeup_other_set_limit(); break; @@ -3828,6 +5019,53 @@ set_wakeup_other_data(void) } } +static int +no_runqs_to_supervise(void) +{ + int used; + erts_aint32_t nerq = erts_smp_atomic32_read_acqb(&no_empty_run_queues); + if (nerq <= 0) + return 0; + get_no_runqs(NULL, &used); + if (nerq >= used) + return 0; + return used; +} + +static void * +runq_supervisor(void *unused) +{ + while (1) { + int ix, no_rqs; + + erts_milli_sleep(erts_runq_supervision_interval); + no_rqs = no_runqs_to_supervise(); + if (!no_rqs) { + erts_atomic_set_nob(&runq_supervisor_sleeping, 1); + while (1) { + ethr_event_reset(&runq_supervision_event); + no_rqs = no_runqs_to_supervise(); + if (no_rqs) { + erts_atomic_set_nob(&runq_supervisor_sleeping, 0); + break; + } + ethr_event_wait(&runq_supervision_event); + } + } + + for (ix = 0; ix < no_rqs; ix++) { + ErtsRunQueue *rq = ERTS_RUNQ_IX(ix); + if (ERTS_RUNQ_FLGS_GET(rq) & ERTS_RUNQ_FLG_NONEMPTY) { + erts_smp_runq_lock(rq); + if (rq->len != 0) + wake_scheduler_on_empty_runq(rq); /* forced wakeup... */ + erts_smp_runq_unlock(rq); + } + } + } + return NULL; +} + #endif void @@ -3836,18 +5074,25 @@ erts_early_init_scheduling(int no_schedulers) aux_work_timeout_early_init(no_schedulers); #ifdef ERTS_SMP wakeup_other.threshold = ERTS_SCHED_WAKEUP_OTHER_THRESHOLD_MEDIUM; - wakeup_other.type = ERTS_SCHED_WAKEUP_OTHER_TYPE_LEGACY; + wakeup_other.type = ERTS_SCHED_WAKEUP_OTHER_TYPE_DEFAULT; #endif +#ifndef ERTS_SCHED_MIN_SPIN sched_busy_wait.sys_schedule = ERTS_SCHED_SYS_SLEEP_SPINCOUNT_MEDIUM; sched_busy_wait.tse = (ERTS_SCHED_SYS_SLEEP_SPINCOUNT_MEDIUM * ERTS_SCHED_TSE_SLEEP_SPINCOUNT_FACT); sched_busy_wait.aux_work = (ERTS_SCHED_SYS_SLEEP_SPINCOUNT_MEDIUM * ERTS_SCHED_AUX_WORK_SLEEP_SPINCOUNT_FACT_MEDIUM); +#else + sched_busy_wait.sys_schedule = ERTS_SCHED_SYS_SLEEP_SPINCOUNT_NONE; + sched_busy_wait.tse = ERTS_SCHED_SYS_SLEEP_SPINCOUNT_NONE; + sched_busy_wait.aux_work = ERTS_SCHED_SYS_SLEEP_SPINCOUNT_NONE; +#endif } int erts_sched_set_wakeup_other_thresold(char *str) { +#ifdef ERTS_SMP ErtsSchedWakeupOtherThreshold threshold; if (sys_strcmp(str, "very_high") == 0) threshold = ERTS_SCHED_WAKEUP_OTHER_THRESHOLD_VERY_HIGH; @@ -3861,29 +5106,38 @@ erts_sched_set_wakeup_other_thresold(char *str) threshold = ERTS_SCHED_WAKEUP_OTHER_THRESHOLD_VERY_LOW; else return EINVAL; -#ifdef ERTS_SMP wakeup_other.threshold = threshold; set_wakeup_other_data(); -#endif return 0; +#else + if (sys_strcmp(str, "very_high") == 0 || sys_strcmp(str, "high") == 0 || + sys_strcmp(str, "medium") == 0 || sys_strcmp(str, "low") == 0 || + sys_strcmp(str, "very_low") == 0) { + return 0; + } + return EINVAL; +#endif } int erts_sched_set_wakeup_other_type(char *str) { +#ifdef ERTS_SMP ErtsSchedWakeupOtherType type; - if (sys_strcmp(str, "proposal") == 0) - type = ERTS_SCHED_WAKEUP_OTHER_TYPE_PROPOSAL; - else if (sys_strcmp(str, "default") == 0) - type = ERTS_SCHED_WAKEUP_OTHER_TYPE_LEGACY; + if (sys_strcmp(str, "default") == 0) + type = ERTS_SCHED_WAKEUP_OTHER_TYPE_DEFAULT; else if (sys_strcmp(str, "legacy") == 0) type = ERTS_SCHED_WAKEUP_OTHER_TYPE_LEGACY; else return EINVAL; -#ifdef ERTS_SMP wakeup_other.type = type; -#endif return 0; +#else + if (sys_strcmp(str, "default") == 0 || sys_strcmp(str, "legacy") == 0) { + return 0; + } + return EINVAL; +#endif } int @@ -3926,17 +5180,48 @@ erts_sched_set_busy_wait_threshold(char *str) return 0; } + +int +erts_sched_set_wake_cleanup_threshold(char *str) +{ + if (sys_strcmp(str, "very_lazy") == 0) + thr_prgr_later_cleanup_op_threshold = ERTS_THR_PRGR_LATER_CLEANUP_OP_THRESHOLD_VERY_LAZY; + else if (sys_strcmp(str, "lazy") == 0) + thr_prgr_later_cleanup_op_threshold = ERTS_THR_PRGR_LATER_CLEANUP_OP_THRESHOLD_LAZY; + else if (sys_strcmp(str, "medium") == 0) + thr_prgr_later_cleanup_op_threshold = ERTS_THR_PRGR_LATER_CLEANUP_OP_THRESHOLD_MEDIUM; + else if (sys_strcmp(str, "eager") == 0) + thr_prgr_later_cleanup_op_threshold = ERTS_THR_PRGR_LATER_CLEANUP_OP_THRESHOLD_EAGER; + else if (sys_strcmp(str, "very_eager") == 0) + thr_prgr_later_cleanup_op_threshold = ERTS_THR_PRGR_LATER_CLEANUP_OP_THRESHOLD_VERY_EAGER; + else + return EINVAL; + return 0; +} + static void init_aux_work_data(ErtsAuxWorkData *awdp, ErtsSchedulerData *esdp, char *dawwp) { - awdp->sched_id = esdp ? (int) esdp->no : 0; + if (!esdp) + awdp->sched_id = 0; +#ifdef ERTS_DIRTY_SCHEDULERS + else if (ERTS_SCHEDULER_IS_DIRTY(esdp)) + awdp->sched_id = (int) ERTS_DIRTY_SCHEDULER_NO(esdp); +#endif + else + awdp->sched_id = (int) esdp->no; awdp->esdp = esdp; awdp->ssi = esdp ? esdp->ssi : NULL; #ifdef ERTS_SMP + awdp->latest_wakeup = ERTS_THR_PRGR_VAL_FIRST; awdp->misc.thr_prgr = ERTS_THR_PRGR_VAL_WAITING; awdp->dd.thr_prgr = ERTS_THR_PRGR_VAL_WAITING; awdp->dd.completed_callback = NULL; awdp->dd.completed_arg = NULL; + awdp->later_op.thr_prgr = ERTS_THR_PRGR_VAL_FIRST; + awdp->later_op.size = 0; + awdp->later_op.first = NULL; + awdp->later_op.last = NULL; #endif #ifdef ERTS_USE_ASYNC_READY_Q #ifdef ERTS_SMP @@ -3964,44 +5249,124 @@ init_aux_work_data(ErtsAuxWorkData *awdp, ErtsSchedulerData *esdp, char *dawwp) #endif } +static void +init_scheduler_data(ErtsSchedulerData* esdp, int num, + ErtsSchedulerSleepInfo* ssi, + ErtsRunQueue* runq, + char** daww_ptr, size_t daww_sz) +{ +#ifdef ERTS_SMP + erts_bits_init_state(&esdp->erl_bits_state); + esdp->match_pseudo_process = NULL; + esdp->free_process = NULL; +#endif + esdp->x_reg_array = + erts_alloc_permanent_cache_aligned(ERTS_ALC_T_BEAM_REGISTER, + ERTS_X_REGS_ALLOCATED * + sizeof(Eterm)); + esdp->f_reg_array = + erts_alloc_permanent_cache_aligned(ERTS_ALC_T_BEAM_REGISTER, + MAX_REG * sizeof(FloatDef)); +#if !HEAP_ON_C_STACK + esdp->num_tmp_heap_used = 0; +#endif +#ifdef ERTS_DIRTY_SCHEDULERS + if (ERTS_RUNQ_IX_IS_DIRTY(runq->ix)) { + esdp->no = 0; + ERTS_DIRTY_SCHEDULER_NO(esdp) = (Uint) num; + } + else { + esdp->no = (Uint) num; + ERTS_DIRTY_SCHEDULER_NO(esdp) = 0; + } +#else + esdp->no = (Uint) num; +#endif + esdp->ssi = ssi; + esdp->current_process = NULL; + esdp->current_port = NULL; + + esdp->virtual_reds = 0; + esdp->cpu_id = -1; + + erts_init_atom_cache_map(&esdp->atom_cache_map); + + esdp->run_queue = runq; + esdp->run_queue->scheduler = esdp; + + if (daww_ptr) { + init_aux_work_data(&esdp->aux_work_data, esdp, *daww_ptr); +#ifdef ERTS_SMP + *daww_ptr += daww_sz; +#endif + } + + esdp->reductions = 0; + + init_sched_wall_time(&esdp->sched_wall_time); + erts_port_task_handle_init(&esdp->nosuspend_port_task_handle); +} + void -erts_init_scheduling(int no_schedulers, int no_schedulers_online) +erts_init_scheduling(int no_schedulers, int no_schedulers_online +#ifdef ERTS_DIRTY_SCHEDULERS + , int no_dirty_cpu_schedulers, int no_dirty_cpu_schedulers_online, + int no_dirty_io_schedulers +#endif + ) { int ix, n, no_ssi; char *daww_ptr; -#ifdef ERTS_SMP size_t daww_sz; -#endif + size_t size_runqs; init_misc_op_list_alloc(); + init_proc_sys_task_queues_alloc(); #ifdef ERTS_SMP set_wakeup_other_data(); #endif +#if ERTS_HAVE_SCHED_UTIL_BALANCING_SUPPORT + if (erts_sched_balance_util) + erts_sched_compact_load = 0; +#endif + ASSERT(no_schedulers_online <= no_schedulers); ASSERT(no_schedulers_online >= 1); ASSERT(no_schedulers >= 1); +#ifdef ERTS_DIRTY_SCHEDULERS + ASSERT(no_dirty_cpu_schedulers <= no_schedulers); + ASSERT(no_dirty_cpu_schedulers >= 1); + ASSERT(no_dirty_cpu_schedulers_online <= no_schedulers_online); + ASSERT(no_dirty_cpu_schedulers_online >= 1); +#endif /* Create and initialize run queues */ n = no_schedulers; - - erts_aligned_run_queues = - erts_alloc_permanent_cache_aligned(ERTS_ALC_T_RUNQS, - sizeof(ErtsAlignedRunQueue) * n); + size_runqs = sizeof(ErtsAlignedRunQueue) * (n + ERTS_NUM_DIRTY_RUNQS); + erts_aligned_run_queues = + erts_alloc_permanent_cache_aligned(ERTS_ALC_T_RUNQS, size_runqs); #ifdef ERTS_SMP +#ifdef ERTS_DIRTY_SCHEDULERS + erts_aligned_run_queues += ERTS_NUM_DIRTY_RUNQS; +#endif erts_smp_atomic32_init_nob(&no_empty_run_queues, 0); #endif erts_no_run_queues = n; - for (ix = 0; ix < n; ix++) { + for (ix = -(ERTS_NUM_DIRTY_RUNQS); ix < n; ix++) { int pix, rix; +#ifdef ERTS_DIRTY_SCHEDULERS + ErtsRunQueue *rq = ERTS_RUNQ_IX_IS_DIRTY(ix) ? + ERTS_DIRTY_RUNQ_IX(ix) : ERTS_RUNQ_IX(ix); +#else ErtsRunQueue *rq = ERTS_RUNQ_IX(ix); +#endif rq->ix = ix; - erts_smp_atomic32_init_nob(&rq->info_flags, ERTS_RUNQ_IFLG_NONEMPTY); /* make sure that the "extra" id correponds to the schedulers * id if the esdp->no <-> ix+1 mapping change. @@ -4010,9 +5375,17 @@ erts_init_scheduling(int no_schedulers, int no_schedulers_online) erts_smp_mtx_init_x(&rq->mtx, "run_queue", make_small(ix + 1)); erts_smp_cnd_init(&rq->cnd); +#ifdef ERTS_DIRTY_SCHEDULERS +#ifdef ERTS_SMP + if (ERTS_RUNQ_IX_IS_DIRTY(ix)) + erts_smp_spinlock_init(&rq->sleepers.lock, "dirty_run_queue_sleep_list"); + rq->sleepers.list = NULL; +#endif +#endif + rq->waiting = 0; rq->woken = 0; - rq->flags = 0; + ERTS_RUNQ_FLGS_INIT(rq, ERTS_RUNQ_FLG_NONEMPTY); rq->check_balance_reds = ERTS_RUNQ_CALL_CHECK_BALANCE_REDS; rq->full_reds_history_sum = 0; for (rix = 0; rix < ERTS_FULL_REDS_HISTORY_SIZE; rix++) { @@ -4026,19 +5399,14 @@ erts_init_scheduling(int no_schedulers, int no_schedulers_online) rq->wakeup_other_reds = 0; rq->halt_in_progress = 0; - rq->procs.len = 0; rq->procs.pending_exiters = NULL; rq->procs.context_switches = 0; rq->procs.reductions = 0; for (pix = 0; pix < ERTS_NO_PROC_PRIO_LEVELS; pix++) { - rq->procs.prio_info[pix].len = 0; + erts_smp_atomic32_init_nob(&rq->procs.prio_info[pix].len, 0); rq->procs.prio_info[pix].max_len = 0; rq->procs.prio_info[pix].reds = 0; - rq->procs.prio_info[pix].migrate.limit.this = 0; - rq->procs.prio_info[pix].migrate.limit.other = 0; - ERTS_DBG_SET_INVALID_RUNQP(rq->procs.prio_info[pix].migrate.runq, - 0x0); if (pix < ERTS_NO_PROC_PRIO_LEVELS - 1) { rq->procs.prio[pix].first = NULL; rq->procs.prio[pix].last = NULL; @@ -4047,16 +5415,17 @@ erts_init_scheduling(int no_schedulers, int no_schedulers_online) rq->misc.start = NULL; rq->misc.end = NULL; - rq->misc.evac_runq = NULL; - rq->ports.info.len = 0; + erts_smp_atomic32_init_nob(&rq->ports.info.len, 0); rq->ports.info.max_len = 0; rq->ports.info.reds = 0; - rq->ports.info.migrate.limit.this = 0; - rq->ports.info.migrate.limit.other = 0; - rq->ports.info.migrate.runq = NULL; rq->ports.start = NULL; rq->ports.end = NULL; + +#if ERTS_HAVE_SCHED_UTIL_BALANCING_SUPPORT + init_runq_sched_util(&rq->sched_util, erts_sched_balance_util); +#endif + } #ifdef ERTS_SMP @@ -4074,6 +5443,10 @@ erts_init_scheduling(int no_schedulers, int no_schedulers_online) n = (int) no_schedulers; erts_no_schedulers = n; +#ifdef ERTS_DIRTY_SCHEDULERS + erts_no_dirty_cpu_schedulers = no_dirty_cpu_schedulers; + erts_no_dirty_io_schedulers = no_dirty_io_schedulers; +#endif /* Create and initialize scheduler sleep info */ #ifdef ERTS_SMP @@ -4100,6 +5473,29 @@ erts_init_scheduling(int no_schedulers, int no_schedulers_online) #ifdef ERTS_SMP aligned_sched_sleep_info++; + +#ifdef ERTS_DIRTY_SCHEDULERS + aligned_dirty_cpu_sched_sleep_info = + erts_alloc_permanent_cache_aligned( + ERTS_ALC_T_SCHDLR_SLP_INFO, + no_dirty_cpu_schedulers*sizeof(ErtsAlignedSchedulerSleepInfo)); + for (ix = 0; ix < no_dirty_cpu_schedulers; ix++) { + ErtsSchedulerSleepInfo *ssi = &aligned_dirty_cpu_sched_sleep_info[ix].ssi; + erts_smp_atomic32_init_nob(&ssi->flags, 0); + ssi->event = NULL; /* initialized in sched_dirty_cpu_thread_func */ + erts_atomic32_init_nob(&ssi->aux_work, 0); + } + aligned_dirty_io_sched_sleep_info = + erts_alloc_permanent_cache_aligned( + ERTS_ALC_T_SCHDLR_SLP_INFO, + no_dirty_io_schedulers*sizeof(ErtsAlignedSchedulerSleepInfo)); + for (ix = 0; ix < no_dirty_io_schedulers; ix++) { + ErtsSchedulerSleepInfo *ssi = &aligned_dirty_io_sched_sleep_info[ix].ssi; + erts_smp_atomic32_init_nob(&ssi->flags, 0); + ssi->event = NULL; /* initialized in sched_dirty_io_thread_func */ + erts_atomic32_init_nob(&ssi->aux_work, 0); + } +#endif #endif /* Create and initialize scheduler specific data */ @@ -4110,6 +5506,7 @@ erts_init_scheduling(int no_schedulers, int no_schedulers_online) daww_ptr = erts_alloc_permanent_cache_aligned(ERTS_ALC_T_SCHDLR_DATA, daww_sz*n); #else + daww_sz = 0; daww_ptr = NULL; #endif @@ -4119,43 +5516,32 @@ erts_init_scheduling(int no_schedulers, int no_schedulers_online) for (ix = 0; ix < n; ix++) { ErtsSchedulerData *esdp = ERTS_SCHEDULER_IX(ix); -#ifdef ERTS_SMP - erts_bits_init_state(&esdp->erl_bits_state); - esdp->match_pseudo_process = NULL; - esdp->free_process = NULL; -#endif - esdp->x_reg_array = - erts_alloc_permanent_cache_aligned(ERTS_ALC_T_BEAM_REGISTER, - ERTS_X_REGS_ALLOCATED * - sizeof(Eterm)); - esdp->f_reg_array = - erts_alloc_permanent_cache_aligned(ERTS_ALC_T_BEAM_REGISTER, - MAX_REG * sizeof(FloatDef)); -#if !HEAP_ON_C_STACK - esdp->num_tmp_heap_used = 0; -#endif - esdp->no = (Uint) ix+1; - esdp->ssi = ERTS_SCHED_SLEEP_INFO_IX(ix); - esdp->current_process = NULL; - esdp->current_port = NULL; - - esdp->virtual_reds = 0; - esdp->cpu_id = -1; - - erts_init_atom_cache_map(&esdp->atom_cache_map); - - esdp->run_queue = ERTS_RUNQ_IX(ix); - esdp->run_queue->scheduler = esdp; + init_scheduler_data(esdp, ix+1, ERTS_SCHED_SLEEP_INFO_IX(ix), + ERTS_RUNQ_IX(ix), &daww_ptr, daww_sz); + } - init_aux_work_data(&esdp->aux_work_data, esdp, daww_ptr); +#ifdef ERTS_DIRTY_SCHEDULERS #ifdef ERTS_SMP - daww_ptr += daww_sz; -#endif - - esdp->reductions = 0; - - init_sched_wall_time(&esdp->sched_wall_time); + erts_aligned_dirty_cpu_scheduler_data = + erts_alloc_permanent_cache_aligned( + ERTS_ALC_T_SCHDLR_DATA, + no_dirty_cpu_schedulers*sizeof(ErtsAlignedSchedulerData)); + for (ix = 0; ix < no_dirty_cpu_schedulers; ix++) { + ErtsSchedulerData *esdp = ERTS_DIRTY_CPU_SCHEDULER_IX(ix); + init_scheduler_data(esdp, ix+1, ERTS_DIRTY_CPU_SCHED_SLEEP_INFO_IX(ix), + ERTS_DIRTY_CPU_RUNQ, NULL, 0); + } + erts_aligned_dirty_io_scheduler_data = + erts_alloc_permanent_cache_aligned( + ERTS_ALC_T_SCHDLR_DATA, + no_dirty_io_schedulers*sizeof(ErtsAlignedSchedulerData)); + for (ix = 0; ix < no_dirty_io_schedulers; ix++) { + ErtsSchedulerData *esdp = ERTS_DIRTY_IO_SCHEDULER_IX(ix); + init_scheduler_data(esdp, ix+1, ERTS_DIRTY_IO_SCHED_SLEEP_INFO_IX(ix), + ERTS_DIRTY_IO_RUNQ, NULL, 0); } +#endif +#endif init_misc_aux_work(); #if !HALFWORD_HEAP @@ -4179,8 +5565,18 @@ erts_init_scheduling(int no_schedulers, int no_schedulers_online) schdlr_sspnd.curr_online = no_schedulers; schdlr_sspnd.msb.ongoing = 0; erts_smp_atomic32_init_nob(&schdlr_sspnd.active, no_schedulers); +#ifdef ERTS_DIRTY_SCHEDULERS + erts_smp_atomic32_init_nob(&schdlr_sspnd.dirty_cpu_changing, 0); + schdlr_sspnd.dirty_cpu_online = no_dirty_cpu_schedulers_online; + schdlr_sspnd.dirty_cpu_curr_online = no_dirty_cpu_schedulers; + erts_smp_atomic32_init_nob(&schdlr_sspnd.dirty_cpu_active, no_dirty_cpu_schedulers); + erts_smp_atomic32_init_nob(&schdlr_sspnd.dirty_io_changing, 0); + schdlr_sspnd.dirty_io_online = no_dirty_io_schedulers; + schdlr_sspnd.dirty_io_curr_online = no_dirty_io_schedulers; + erts_smp_atomic32_init_nob(&schdlr_sspnd.dirty_io_active, no_dirty_io_schedulers); +#endif schdlr_sspnd.msb.procs = NULL; - init_no_runqs(no_schedulers, no_schedulers_online); + init_no_runqs(no_schedulers_online, no_schedulers_online); balance_info.last_active_runqs = no_schedulers; erts_smp_mtx_init(&balance_info.update_mtx, "migration_info_update"); balance_info.forced_check_balance = 0; @@ -4192,16 +5588,33 @@ erts_init_scheduling(int no_schedulers, int no_schedulers_online) balance_info.prev_rise.reds = 0; balance_info.n = 0; + init_migration_paths(); + if (no_schedulers_online < no_schedulers) { + change_no_used_runqs(no_schedulers_online); for (ix = no_schedulers_online; ix < erts_no_run_queues; ix++) - evacuate_run_queue(ERTS_RUNQ_IX(ix), - ERTS_RUNQ_IX(ix % no_schedulers_online)); + suspend_run_queue(ERTS_RUNQ_IX(ix)); } schdlr_sspnd.wait_curr_online = no_schedulers_online; schdlr_sspnd.curr_online *= 2; /* Boot strapping... */ ERTS_SCHDLR_SSPND_CHNG_SET((ERTS_SCHDLR_SSPND_CHNG_ONLN | ERTS_SCHDLR_SSPND_CHNG_WAITER), 0); +#ifdef ERTS_DIRTY_SCHEDULERS + schdlr_sspnd.dirty_cpu_wait_curr_online = no_dirty_cpu_schedulers_online; + schdlr_sspnd.dirty_cpu_curr_online *= 2; + ERTS_SCHDLR_SSPND_DIRTY_CPU_CHNG_SET((ERTS_SCHDLR_SSPND_CHNG_ONLN + | ERTS_SCHDLR_SSPND_CHNG_WAITER), 0); + for (ix = no_dirty_cpu_schedulers_online; ix < no_dirty_cpu_schedulers; ix++) { + ErtsSchedulerData* esdp = ERTS_DIRTY_CPU_SCHEDULER_IX(ix); + erts_smp_atomic32_read_bor_nob(&esdp->ssi->flags, ERTS_SSI_FLG_SUSPENDED); + } + + schdlr_sspnd.dirty_io_wait_curr_online = no_dirty_io_schedulers; + schdlr_sspnd.dirty_io_curr_online *= 2; + ERTS_SCHDLR_SSPND_DIRTY_IO_CHNG_SET((ERTS_SCHDLR_SSPND_CHNG_ONLN + | ERTS_SCHDLR_SSPND_CHNG_WAITER), 0); +#endif erts_smp_atomic32_init_nob(&doing_sys_schedule, 0); @@ -4217,6 +5630,10 @@ erts_init_scheduling(int no_schedulers, int no_schedulers_online) #endif } erts_no_schedulers = 1; +#ifdef ERTS_DIRTY_SCHEDULERS + erts_no_dirty_cpu_schedulers = 0; + erts_no_dirty_io_schedulers = 0; +#endif #endif erts_smp_atomic32_init_nob(&function_calls, 0); @@ -4237,6 +5654,11 @@ erts_init_scheduling(int no_schedulers, int no_schedulers_online) erts_smp_atomic32_init_relb(&erts_halt_progress, -1); erts_halt_code = 0; + +#if !defined(ERTS_SMP) && defined(ERTS_ENABLE_LOCK_CHECK) + erts_lc_set_thread_name("scheduler 1"); +#endif + } ErtsRunQueue * @@ -4258,91 +5680,551 @@ erts_get_scheduler_data(void) #endif -static int remove_proc_from_runq(ErtsRunQueue *rq, Process *p, int to_inactive); +static Process * +make_proxy_proc(Process *prev_proxy, Process *proc, erts_aint32_t prio) +{ + erts_aint32_t state; + Process *proxy; +#ifdef ERTS_SMP + ErtsRunQueue *rq = RUNQ_READ_RQ(&proc->run_queue); +#endif + + state = (ERTS_PSFLG_PROXY + | ERTS_PSFLG_IN_RUNQ + | (((erts_aint32_t) 1) << (prio + ERTS_PSFLGS_IN_PRQ_MASK_OFFSET)) + | (prio << ERTS_PSFLGS_PRQ_PRIO_OFFSET) + | (prio << ERTS_PSFLGS_USR_PRIO_OFFSET) + | (prio << ERTS_PSFLGS_ACT_PRIO_OFFSET)); + + if (prev_proxy) { + proxy = prev_proxy; + ASSERT(erts_smp_atomic32_read_nob(&proxy->state) & ERTS_PSFLG_PROXY); + erts_smp_atomic32_set_nob(&proxy->state, state); +#ifdef ERTS_SMP + RUNQ_SET_RQ(&proc->run_queue, rq); +#endif + } + else { + proxy = erts_alloc(ERTS_ALC_T_PROC, sizeof(Process)); +#ifdef DEBUG + { + int i; + Uint32 *ui32 = (Uint32 *) (char *) proxy; + for (i = 0; i < sizeof(Process)/sizeof(Uint32); i++) + ui32[i] = (Uint32) 0xdeadbeef; + } +#endif + erts_smp_atomic32_init_nob(&proxy->state, state); +#ifdef ERTS_SMP + erts_smp_atomic_init_nob(&proxy->run_queue, + erts_smp_atomic_read_nob(&proc->run_queue)); +#endif + } + + proxy->common.id = proc->common.id; + + return proxy; +} static ERTS_INLINE void -suspend_process(ErtsRunQueue *rq, Process *p) +free_proxy_proc(Process *proxy) { - ERTS_SMP_LC_ASSERT(ERTS_PROC_LOCK_STATUS & erts_proc_lc_my_proc_locks(p)); - ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(rq)); - p->rcount++; /* count number of suspend */ + ASSERT(erts_smp_atomic32_read_nob(&proxy->state) & ERTS_PSFLG_PROXY); + erts_free(ERTS_ALC_T_PROC, proxy); +} + +#define ERTS_ENQUEUE_NOT 0 +#define ERTS_ENQUEUE_NORMAL_QUEUE 1 +#ifdef ERTS_DIRTY_SCHEDULERS +#define ERTS_ENQUEUE_DIRTY_CPU_QUEUE 2 +#define ERTS_ENQUEUE_DIRTY_IO_QUEUE 3 +#endif + +static ERTS_INLINE int +check_enqueue_in_prio_queue(Process *c_p, + erts_aint32_t *prq_prio_p, + erts_aint32_t *newp, + erts_aint32_t actual) +{ + erts_aint32_t aprio, qbit, max_qbit; + + aprio = (actual >> ERTS_PSFLGS_ACT_PRIO_OFFSET) & ERTS_PSFLGS_PRIO_MASK; + qbit = 1 << aprio; + + *prq_prio_p = aprio; + +#ifdef ERTS_DIRTY_SCHEDULERS + if (actual & (ERTS_PSFLG_DIRTY_CPU_PROC|ERTS_PSFLG_DIRTY_IO_PROC)) { + /* + * If we have system tasks of a priority higher + * or equal to the user priority, we enqueue + * on ordinary run-queue and take care of + * those system tasks first. + */ + if (actual & ERTS_PSFLG_ACTIVE_SYS) { + erts_aint32_t uprio, stprio, qmask; + uprio = (actual >> ERTS_PSFLGS_USR_PRIO_OFFSET) & ERTS_PSFLGS_PRIO_MASK; + if (aprio < uprio) + goto enqueue_normal_runq; /* system tasks with higher prio */ + erts_smp_proc_lock(c_p, ERTS_PROC_LOCK_STATUS); + qmask = c_p->sys_task_qs->qmask; + erts_smp_proc_unlock(c_p, ERTS_PROC_LOCK_STATUS); + switch (qmask & -qmask) { + case MAX_BIT: + stprio = PRIORITY_MAX; + break; + case HIGH_BIT: + stprio = PRIORITY_HIGH; + break; + case NORMAL_BIT: + stprio = PRIORITY_NORMAL; + break; + case LOW_BIT: + stprio = PRIORITY_LOW; + break; + default: + stprio = PRIORITY_LOW+1; + break; + } + if (stprio <= uprio) + goto enqueue_normal_runq; /* system tasks with higher prio */ + } + + /* Enqueue in dirty run queue if not already enqueued */ + if (actual & (ERTS_PSFLG_DIRTY_CPU_PROC_IN_Q|ERTS_PSFLG_DIRTY_IO_PROC_IN_Q)) + return ERTS_ENQUEUE_NOT; /* already in queue */ + if (actual & ERTS_PSFLG_DIRTY_CPU_PROC) { + *newp |= ERTS_PSFLG_DIRTY_CPU_PROC_IN_Q; + if (actual & ERTS_PSFLG_IN_RUNQ) + return -ERTS_ENQUEUE_DIRTY_CPU_QUEUE; /* use proxy */ + *newp |= ERTS_PSFLG_IN_RUNQ; + return ERTS_ENQUEUE_DIRTY_CPU_QUEUE; + } + *newp |= ERTS_PSFLG_DIRTY_IO_PROC_IN_Q; + if (actual & ERTS_PSFLG_IN_RUNQ) + return -ERTS_ENQUEUE_DIRTY_IO_QUEUE; /* use proxy */ + *newp |= ERTS_PSFLG_IN_RUNQ; + return ERTS_ENQUEUE_DIRTY_IO_QUEUE; + } + + enqueue_normal_runq: +#endif + max_qbit = (actual >> ERTS_PSFLGS_IN_PRQ_MASK_OFFSET) & ERTS_PSFLGS_QMASK; + max_qbit |= 1 << ERTS_PSFLGS_QMASK_BITS; + max_qbit &= -max_qbit; + /* + * max_qbit now either contain bit set for highest prio queue or a bit + * out of range (which will have a value larger than valid range). + */ + + if (qbit >= max_qbit) + return ERTS_ENQUEUE_NOT; /* Already queued in higher or equal prio */ + + /* Need to enqueue (if already enqueued, it is in lower prio) */ + *newp |= qbit << ERTS_PSFLGS_IN_PRQ_MASK_OFFSET; + + if ((actual & (ERTS_PSFLG_IN_RUNQ|ERTS_PSFLGS_USR_PRIO_MASK)) + != (aprio << ERTS_PSFLGS_USR_PRIO_OFFSET)) { + /* + * Process struct already enqueued, or actual prio not + * equal to user prio, i.e., enqueue using proxy. + */ + return -ERTS_ENQUEUE_NORMAL_QUEUE; + } + + /* + * Enqueue using process struct. + */ + *newp &= ~ERTS_PSFLGS_PRQ_PRIO_MASK; + *newp |= ERTS_PSFLG_IN_RUNQ | (aprio << ERTS_PSFLGS_PRQ_PRIO_OFFSET); + return ERTS_ENQUEUE_NORMAL_QUEUE; +} + +/* + * schedule_out_process() return with c_rq locked. + */ +static ERTS_INLINE int +schedule_out_process(ErtsRunQueue *c_rq, erts_aint32_t state, Process *p, Process *proxy) +{ + erts_aint32_t a, e, n, enq_prio = -1; + int enqueue; /* < 0 -> use proxy */ + Process* sched_p; + ErtsRunQueue* runq; #ifdef ERTS_SMP - ASSERT(!(p->runq_flags & ERTS_PROC_RUNQ_FLG_RUNNING) - || p == erts_get_current_process()); - ASSERT(p->status != P_RUNNING - || p->runq_flags & ERTS_PROC_RUNQ_FLG_RUNNING); - if (p->status_flags & ERTS_PROC_SFLG_PENDADD2SCHEDQ) - goto runable; -#endif - switch(p->status) { - case P_SUSPENDED: - break; - case P_RUNABLE: + int check_emigration_need; +#endif + + a = state; + + while (1) { + n = e = a; + + ASSERT(a & (ERTS_PSFLG_RUNNING|ERTS_PSFLG_RUNNING_SYS)); + + enqueue = ERTS_ENQUEUE_NOT; + + n &= ~(ERTS_PSFLG_RUNNING|ERTS_PSFLG_RUNNING_SYS); + if (a & ERTS_PSFLG_ACTIVE_SYS + || (a & (ERTS_PSFLG_ACTIVE|ERTS_PSFLG_SUSPENDED)) == ERTS_PSFLG_ACTIVE) { + enqueue = check_enqueue_in_prio_queue(p, &enq_prio, &n, a); + } + a = erts_smp_atomic32_cmpxchg_mb(&p->state, n, e); + if (a == e) + break; + } + + switch (enqueue) { + case ERTS_ENQUEUE_NOT: + if (erts_system_profile_flags.runnable_procs) { + + if (!(a & ERTS_PSFLG_ACTIVE_SYS) + && (!(a & ERTS_PSFLG_ACTIVE) + || (a & ERTS_PSFLG_SUSPENDED))) { + /* Process inactive */ + profile_runnable_proc(p, am_inactive); + } + } + + if (proxy) + free_proxy_proc(proxy); + + erts_smp_runq_lock(c_rq); + return 0; + +#ifdef ERTS_DIRTY_SCHEDULERS #ifdef ERTS_SMP - runable: - if (!ERTS_PROC_PENDING_EXIT(p)) + case ERTS_ENQUEUE_DIRTY_CPU_QUEUE: + case -ERTS_ENQUEUE_DIRTY_CPU_QUEUE: + runq = ERTS_DIRTY_CPU_RUNQ; + ASSERT(ERTS_SCHEDULER_IS_DIRTY_CPU(runq->scheduler)); +#ifdef ERTS_SMP + check_emigration_need = 0; #endif - remove_proc_from_runq(rq, p, 1); - /* else: - * leave process in schedq so it will discover the pending exit - */ - p->rstatus = P_RUNABLE; /* wakeup as runnable */ break; - case P_RUNNING: - p->rstatus = P_RUNABLE; /* wakeup as runnable */ + + case ERTS_ENQUEUE_DIRTY_IO_QUEUE: + case -ERTS_ENQUEUE_DIRTY_IO_QUEUE: + runq = ERTS_DIRTY_IO_RUNQ; + ASSERT(ERTS_SCHEDULER_IS_DIRTY_IO(runq->scheduler)); +#ifdef ERTS_SMP + check_emigration_need = 0; +#endif break; - case P_WAITING: - p->rstatus = P_WAITING; /* wakeup as waiting */ +#endif +#endif + + default: + ASSERT(enqueue == ERTS_ENQUEUE_NORMAL_QUEUE + || enqueue == -ERTS_ENQUEUE_NORMAL_QUEUE); + + runq = erts_get_runq_proc(p); +#ifdef ERTS_SMP + check_emigration_need = !(ERTS_PSFLG_BOUND & n); +#endif break; - case P_EXITING: - return; /* ignore this */ - case P_GARBING: - case P_FREE: - erl_exit(1, "bad state in suspend_process()\n"); } - if ((erts_system_profile_flags.runnable_procs) && (p->rcount == 1) && (p->status != P_WAITING)) { - profile_runnable_proc(p, am_inactive); + ASSERT(!(n & ERTS_PSFLG_SUSPENDED) || (n & ERTS_PSFLG_ACTIVE_SYS)); + + if (enqueue < 0) + sched_p = make_proxy_proc(proxy, p, enq_prio); + else { + sched_p = p; + if (proxy) + free_proxy_proc(proxy); } - p->status = P_SUSPENDED; - +#ifdef ERTS_SMP + if (check_emigration_need) { + ErtsRunQueue *new_runq = erts_check_emigration_need(runq, enq_prio); + if (new_runq) { + RUNQ_SET_RQ(&sched_p->run_queue, new_runq); + runq = new_runq; + } + } +#endif + + ASSERT(runq); + + erts_smp_runq_lock(runq); + + /* Enqueue the process */ + enqueue_process(runq, (int) enq_prio, sched_p); + + if (runq == c_rq) + return 1; + erts_smp_runq_unlock(runq); + smp_notify_inc_runq(runq); + erts_smp_runq_lock(c_rq); + return 1; } static ERTS_INLINE void -resume_process(Process *p) +add2runq(Process *p, erts_aint32_t state, erts_aint32_t prio) { - Uint32 *statusp; - ERTS_SMP_LC_ASSERT(ERTS_PROC_LOCK_STATUS & erts_proc_lc_my_proc_locks(p)); - switch (p->status) { - case P_SUSPENDED: - statusp = &p->status; - break; - case P_GARBING: - if (p->gcstatus == P_SUSPENDED) { - statusp = &p->gcstatus; + ErtsRunQueue *runq = erts_get_runq_proc(p); + +#ifdef ERTS_SMP + if (!(ERTS_PSFLG_BOUND & state)) { + ErtsRunQueue *new_runq = erts_check_emigration_need(runq, (int) prio); + if (new_runq) { + RUNQ_SET_RQ(&p->run_queue, new_runq); + runq = new_runq; + } + } +#endif + ASSERT(runq); + + erts_smp_runq_lock(runq); + + /* Enqueue the process */ + enqueue_process(runq, (int) prio, p); + + erts_smp_runq_unlock(runq); + smp_notify_inc_runq(runq); + +} + +static ERTS_INLINE int +change_proc_schedule_state(Process *p, + erts_aint32_t clear_state_flags, + erts_aint32_t set_state_flags, + erts_aint32_t *statep, + erts_aint32_t *enq_prio_p) +{ + /* + * NOTE: ERTS_PSFLG_RUNNING, ERTS_PSFLG_RUNNING_SYS and + * ERTS_PSFLG_ACTIVE_SYS are not allowed to be + * altered by this function! + */ + erts_aint32_t a = *statep, n; + int enqueue; /* < 0 -> use proxy */ + + ASSERT(!(a & ERTS_PSFLG_PROXY)); + ASSERT((clear_state_flags & (ERTS_PSFLG_RUNNING + | ERTS_PSFLG_RUNNING_SYS + | ERTS_PSFLG_ACTIVE_SYS)) == 0); + ASSERT((set_state_flags & (ERTS_PSFLG_RUNNING + | ERTS_PSFLG_RUNNING_SYS + | ERTS_PSFLG_ACTIVE_SYS)) == 0); + + while (1) { + erts_aint32_t e; + n = e = a; + + enqueue = ERTS_ENQUEUE_NOT; + + if (a & ERTS_PSFLG_FREE) + break; /* We don't want to schedule free processes... */ + + if (clear_state_flags) + n &= ~clear_state_flags; + + if (set_state_flags) + n |= set_state_flags; + + if ((n & (ERTS_PSFLG_SUSPENDED + | ERTS_PSFLG_RUNNING + | ERTS_PSFLG_RUNNING_SYS + | ERTS_PSFLG_IN_RUNQ + | ERTS_PSFLG_ACTIVE)) == ERTS_PSFLG_ACTIVE) { + /* + * Active and seemingly need to be enqueued, but + * process may be in a run queue via proxy, need + * further inspection... + */ + enqueue = check_enqueue_in_prio_queue(p, enq_prio_p, &n, a); + } + + a = erts_smp_atomic32_cmpxchg_mb(&p->state, n, e); + if (a == e) + break; + if (enqueue == ERTS_ENQUEUE_NOT && n == a) break; + } + + if (erts_system_profile_flags.runnable_procs) { + + if (((n & (ERTS_PSFLG_SUSPENDED + | ERTS_PSFLG_ACTIVE)) == ERTS_PSFLG_ACTIVE) + && (!(a & (ERTS_PSFLG_ACTIVE_SYS + | ERTS_PSFLG_RUNNING + | ERTS_PSFLG_RUNNING_SYS) + && (!(a & ERTS_PSFLG_ACTIVE) + || (a & ERTS_PSFLG_SUSPENDED))))) { + /* We activated a prevously inactive process */ + profile_runnable_proc(p, am_active); } - /* Fall through */ - default: - return; + + } + + *statep = a; + + return enqueue; +} + +static ERTS_INLINE void +schedule_process(Process *p, erts_aint32_t in_state) +{ + erts_aint32_t enq_prio = -1; + erts_aint32_t state = in_state; + int enqueue = change_proc_schedule_state(p, + 0, + ERTS_PSFLG_ACTIVE, + &state, + &enq_prio); + if (enqueue != ERTS_ENQUEUE_NOT) + add2runq(enqueue > 0 ? p : make_proxy_proc(NULL, p, enq_prio), + state, + enq_prio); +} + +void +erts_schedule_process(Process *p, erts_aint32_t state) +{ + schedule_process(p, state); +} + +static void +schedule_process_sys_task(Process *p, erts_aint32_t state, Process *proxy) +{ + erts_aint32_t a = state, n, enq_prio = -1; + int enqueue; /* < 0 -> use proxy */ + + ASSERT(!(state & ERTS_PSFLG_PROXY)); + + while (1) { + erts_aint32_t e; + n = e = a; + + if (a & ERTS_PSFLG_FREE) + return; /* We don't want to schedule free processes... */ + + enqueue = ERTS_ENQUEUE_NOT; + n |= ERTS_PSFLG_ACTIVE_SYS; + if (!(a & (ERTS_PSFLG_RUNNING|ERTS_PSFLG_RUNNING_SYS))) + enqueue = check_enqueue_in_prio_queue(p, &enq_prio, &n, a); + a = erts_smp_atomic32_cmpxchg_mb(&p->state, n, e); + if (a == e) + break; + if (a == n && enqueue == ERTS_ENQUEUE_NOT) + goto cleanup; + } + + if (erts_system_profile_flags.runnable_procs) { + + if (!(a & (ERTS_PSFLG_ACTIVE_SYS + | ERTS_PSFLG_RUNNING + | ERTS_PSFLG_RUNNING_SYS)) + && (!(a & ERTS_PSFLG_ACTIVE) || (a & ERTS_PSFLG_SUSPENDED))) { + /* We activated a prevously inactive process */ + profile_runnable_proc(p, am_active); + } + + } + + if (enqueue != ERTS_ENQUEUE_NOT) { + Process *sched_p; + if (enqueue > 0) + sched_p = p; + else { + sched_p = make_proxy_proc(proxy, p, enq_prio); + proxy = NULL; + } + add2runq(sched_p, n, enq_prio); } +cleanup: + if (proxy) + free_proxy_proc(proxy); +} + +static ERTS_INLINE int +suspend_process(Process *c_p, Process *p) +{ + erts_aint32_t state; + int suspended = 0; + ERTS_SMP_LC_ASSERT(ERTS_PROC_LOCK_STATUS & erts_proc_lc_my_proc_locks(p)); + + state = erts_smp_atomic32_read_acqb(&p->state); + + if ((state & ERTS_PSFLG_SUSPENDED)) + suspended = -1; + else { + if (c_p == p) { + state = erts_smp_atomic32_read_bor_relb(&p->state, + ERTS_PSFLG_SUSPENDED); + ASSERT(state & (ERTS_PSFLG_RUNNING|ERTS_PSFLG_RUNNING_SYS)); + suspended = (state & ERTS_PSFLG_SUSPENDED) ? -1: 1; + } + else { + while (!(state & (ERTS_PSFLG_RUNNING|ERTS_PSFLG_EXITING))) { + erts_aint32_t n, e; + + n = e = state; + n |= ERTS_PSFLG_SUSPENDED; + state = erts_smp_atomic32_cmpxchg_relb(&p->state, n, e); + if (state == e) { + suspended = 1; + break; + } + if (state & ERTS_PSFLG_SUSPENDED) { + suspended = -1; + break; + } + } + } + } + + if (suspended) { + + ASSERT(!(ERTS_PSFLG_RUNNING & state) + || p == erts_get_current_process()); + + if (suspended > 0 && erts_system_profile_flags.runnable_procs) { + + /* 'state' is before our change... */ + + if ((state & (ERTS_PSFLG_ACTIVE + | ERTS_PSFLG_ACTIVE_SYS + | ERTS_PSFLG_RUNNING + | ERTS_PSFLG_RUNNING_SYS + | ERTS_PSFLG_SUSPENDED)) == ERTS_PSFLG_ACTIVE) { + /* We made process inactive */ + profile_runnable_proc(p, am_inactive); + } + + } + + p->rcount++; /* count number of suspend */ + } + + return suspended; +} + +static ERTS_INLINE void +resume_process(Process *p) +{ + erts_aint32_t state, enq_prio = -1; + int enqueue; + + ERTS_SMP_LC_ASSERT(ERTS_PROC_LOCK_STATUS & erts_proc_lc_my_proc_locks(p)); + ASSERT(p->rcount > 0); if (--p->rcount > 0) /* multiple suspend */ return; - switch(p->rstatus) { - case P_RUNABLE: - erts_add_to_runq(p); - break; - case P_WAITING: - *statusp = P_WAITING; - break; - default: - erl_exit(1, "bad state in resume_process()\n"); - } - p->rstatus = P_FREE; + + state = erts_smp_atomic32_read_nob(&p->state); + enqueue = change_proc_schedule_state(p, + ERTS_PSFLG_SUSPENDED, + 0, + &state, + &enq_prio); + if (enqueue) + add2runq(enqueue > 0 ? p : make_proxy_proc(NULL, p, enq_prio), + state, + enq_prio); } int @@ -4364,6 +6246,12 @@ static void scheduler_ix_resume_wake(Uint ix) { ErtsSchedulerSleepInfo *ssi = ERTS_SCHED_SLEEP_INFO_IX(ix); + scheduler_ssi_resume_wake(ssi); +} + +static void +scheduler_ssi_resume_wake(ErtsSchedulerSleepInfo *ssi) +{ erts_aint32_t xflgs = (ERTS_SSI_FLG_SLEEPING | ERTS_SSI_FLG_TSE_SLEEPING | ERTS_SSI_FLG_WAITING @@ -4454,6 +6342,301 @@ sched_set_suspended_sleeptype(ErtsSchedulerSleepInfo *ssi) } } +#ifdef ERTS_DIRTY_SCHEDULERS + +static void +suspend_scheduler(ErtsSchedulerData *esdp) +{ + erts_aint32_t flgs; + erts_aint32_t changing; +#ifdef ERTS_DIRTY_SCHEDULERS + long no = (long) (ERTS_SCHEDULER_IS_DIRTY(esdp) + ? ERTS_DIRTY_SCHEDULER_NO(esdp) + : esdp->no); +#else + long no = (long) esdp->no; +#endif + ErtsSchedulerSleepInfo *ssi = esdp->ssi; + long active_schedulers; + int curr_online = 1; + int wake = 0; + erts_aint32_t aux_work; + int thr_prgr_active = 1; + ErtsStuckBoundProcesses sbp = {NULL, NULL}; + int* ss_onlinep; + int* ss_curr_onlinep; + int* ss_wait_curr_onlinep; + long* ss_wait_activep; + long ss_wait_active_target; + erts_smp_atomic32_t* ss_changingp; + erts_smp_atomic32_t* ss_activep; + + /* + * Schedulers may be suspended in two different ways: + * - A scheduler may be suspended since it is not online. + * All schedulers with scheduler ids greater than + * schdlr_sspnd.online are suspended; same for dirty + * schedulers and schdlr_sspnd.dirty_cpu_online and + * schdlr_sspnd.dirty_io_online. + * - Multi scheduling is blocked. All schedulers except the + * scheduler with scheduler id 1 are suspended, and all + * dirty CPU and dirty I/O schedulers are suspended. + * + * Regardless of why a scheduler is suspended, it ends up here. + */ + + ASSERT(ERTS_SCHEDULER_IS_DIRTY(esdp) || no != 1); + +#ifdef ERTS_DIRTY_SCHEDULERS + if (ERTS_SCHEDULER_IS_DIRTY(esdp)) { + if (erts_smp_mtx_trylock(&schdlr_sspnd.mtx) == EBUSY) { + erts_smp_runq_unlock(esdp->run_queue); + erts_smp_mtx_lock(&schdlr_sspnd.mtx); + erts_smp_runq_lock(esdp->run_queue); + } + if (ongoing_multi_scheduling_block()) + evacuate_run_queue(esdp->run_queue, &sbp); + } else +#endif + evacuate_run_queue(esdp->run_queue, &sbp); + + erts_smp_runq_unlock(esdp->run_queue); + +#ifdef ERTS_DIRTY_SCHEDULERS + if (!ERTS_SCHEDULER_IS_DIRTY(esdp)) +#endif + { + erts_sched_check_cpu_bind_prep_suspend(esdp); + + if (erts_system_profile_flags.scheduler) + profile_scheduler(make_small(esdp->no), am_inactive); + + sched_wall_time_change(esdp, 0); + + erts_smp_mtx_lock(&schdlr_sspnd.mtx); + } + + flgs = sched_prep_spin_suspended(ssi, ERTS_SSI_FLG_SUSPENDED); + if (flgs & ERTS_SSI_FLG_SUSPENDED) { + +#ifdef ERTS_DIRTY_SCHEDULERS + if (ERTS_SCHEDULER_IS_DIRTY(esdp)) { + if (ERTS_RUNQ_IS_DIRTY_CPU_RUNQ(esdp->run_queue)) { + active_schedulers = erts_smp_atomic32_dec_read_nob(&schdlr_sspnd.dirty_cpu_active); + ASSERT(active_schedulers >= 0); + changing = erts_smp_atomic32_read_nob(&schdlr_sspnd.dirty_cpu_changing); + ss_onlinep = &schdlr_sspnd.dirty_cpu_online; + ss_curr_onlinep = &schdlr_sspnd.dirty_cpu_curr_online; + ss_wait_curr_onlinep = &schdlr_sspnd.dirty_cpu_wait_curr_online; + ss_changingp = &schdlr_sspnd.dirty_cpu_changing; + ss_wait_activep = &schdlr_sspnd.msb.dirty_cpu_wait_active; + ss_activep = &schdlr_sspnd.dirty_cpu_active; + } else { + active_schedulers = erts_smp_atomic32_dec_read_nob(&schdlr_sspnd.dirty_io_active); + ASSERT(active_schedulers >= 0); + changing = erts_smp_atomic32_read_nob(&schdlr_sspnd.dirty_io_changing); + ss_onlinep = &schdlr_sspnd.dirty_io_online; + ss_curr_onlinep = &schdlr_sspnd.dirty_io_curr_online; + ss_wait_curr_onlinep = &schdlr_sspnd.dirty_io_wait_curr_online; + ss_changingp = &schdlr_sspnd.dirty_io_changing; + ss_wait_activep = &schdlr_sspnd.msb.dirty_io_wait_active; + ss_activep = &schdlr_sspnd.dirty_io_active; + } + ss_wait_active_target = 0; + } + else +#endif + { + active_schedulers = erts_smp_atomic32_dec_read_nob(&schdlr_sspnd.active); + ASSERT(active_schedulers >= 1); + changing = erts_smp_atomic32_read_nob(&schdlr_sspnd.changing); + ss_onlinep = &schdlr_sspnd.online; + ss_curr_onlinep = &schdlr_sspnd.curr_online; + ss_wait_curr_onlinep = &schdlr_sspnd.wait_curr_online; + ss_changingp = &schdlr_sspnd.changing; + ss_wait_activep = &schdlr_sspnd.msb.wait_active; + ss_activep = &schdlr_sspnd.active; + ss_wait_active_target = 1; + } + if (changing & ERTS_SCHDLR_SSPND_CHNG_MSB) { + if (active_schedulers == *ss_wait_activep) + wake = 1; + if (active_schedulers == ss_wait_active_target) { + changing = erts_smp_atomic32_read_band_nob(ss_changingp, + ~ERTS_SCHDLR_SSPND_CHNG_MSB); + changing &= ~ERTS_SCHDLR_SSPND_CHNG_MSB; + } + } + + while (1) { + if (changing & ERTS_SCHDLR_SSPND_CHNG_ONLN) { + int changed = 0; + if (no > *ss_onlinep && curr_online) { + (*ss_curr_onlinep)--; + curr_online = 0; + changed = 1; + } + else if (no <= *ss_onlinep && !curr_online) { + (*ss_curr_onlinep)++; + curr_online = 1; + changed = 1; + } + if (changed + && *ss_curr_onlinep == *ss_wait_curr_onlinep) + wake = 1; + if (*ss_onlinep == *ss_curr_onlinep) { + changing = erts_smp_atomic32_read_band_nob(ss_changingp, + ~ERTS_SCHDLR_SSPND_CHNG_ONLN); + changing &= ~ERTS_SCHDLR_SSPND_CHNG_ONLN; + } + } + + if (wake) { + erts_smp_cnd_signal(&schdlr_sspnd.cnd); + wake = 0; + } + + if (curr_online && !ongoing_multi_scheduling_block()) { + flgs = erts_smp_atomic32_read_acqb(&ssi->flags); + if (!(flgs & ERTS_SSI_FLG_SUSPENDED)) + break; + } + erts_smp_mtx_unlock(&schdlr_sspnd.mtx); + + while (1) { + erts_aint32_t qmask; + erts_aint32_t flgs; + + qmask = (ERTS_RUNQ_FLGS_GET(esdp->run_queue) + & ERTS_RUNQ_FLGS_QMASK); + aux_work = erts_atomic32_read_acqb(&ssi->aux_work); + if (aux_work|qmask) { + if (!ERTS_SCHEDULER_IS_DIRTY(esdp) && !thr_prgr_active) { + erts_thr_progress_active(esdp, thr_prgr_active = 1); + sched_wall_time_change(esdp, 1); + } + if (aux_work) + aux_work = handle_aux_work(&esdp->aux_work_data, + aux_work, + 1); + + if (!ERTS_SCHEDULER_IS_DIRTY(esdp) && + (aux_work && erts_thr_progress_update(esdp))) + erts_thr_progress_leader_update(esdp); + if (qmask) { +#ifdef ERTS_DIRTY_SCHEDULERS + if (ERTS_SCHEDULER_IS_DIRTY(esdp)) { + erts_smp_mtx_lock(&schdlr_sspnd.mtx); + erts_smp_runq_lock(esdp->run_queue); + if (ongoing_multi_scheduling_block()) + evacuate_run_queue(esdp->run_queue, &sbp); + erts_smp_runq_unlock(esdp->run_queue); + erts_smp_mtx_unlock(&schdlr_sspnd.mtx); + } else +#endif + { + erts_smp_runq_lock(esdp->run_queue); + evacuate_run_queue(esdp->run_queue, &sbp); + erts_smp_runq_unlock(esdp->run_queue); + } + } + } + + if (!aux_work) { +#ifdef ERTS_DIRTY_SCHEDULERS + if (!ERTS_SCHEDULER_IS_DIRTY(esdp)) +#endif + { + if (thr_prgr_active) { + erts_thr_progress_active(esdp, thr_prgr_active = 0); + sched_wall_time_change(esdp, 0); + } + erts_thr_progress_prepare_wait(esdp); + } + flgs = sched_spin_suspended(ssi, + ERTS_SCHED_SUSPEND_SLEEP_SPINCOUNT); + if (flgs == (ERTS_SSI_FLG_SLEEPING + | ERTS_SSI_FLG_WAITING + | ERTS_SSI_FLG_SUSPENDED)) { + flgs = sched_set_suspended_sleeptype(ssi); + if (flgs == (ERTS_SSI_FLG_SLEEPING + | ERTS_SSI_FLG_TSE_SLEEPING + | ERTS_SSI_FLG_WAITING + | ERTS_SSI_FLG_SUSPENDED)) { + int res; + + do { + res = erts_tse_wait(ssi->event); + } while (res == EINTR); + } + } +#ifdef ERTS_DIRTY_SCHEDULERS + if (!ERTS_SCHEDULER_IS_DIRTY(esdp)) +#endif + erts_thr_progress_finalize_wait(esdp); + } + + flgs = sched_prep_spin_suspended(ssi, (ERTS_SSI_FLG_WAITING + | ERTS_SSI_FLG_SUSPENDED)); + if (!(flgs & ERTS_SSI_FLG_SUSPENDED)) + break; + changing = erts_smp_atomic32_read_nob(ss_changingp); + if (changing & ~ERTS_SCHDLR_SSPND_CHNG_WAITER) + break; + } + + erts_smp_mtx_lock(&schdlr_sspnd.mtx); + changing = erts_smp_atomic32_read_nob(ss_changingp); + } + + active_schedulers = erts_smp_atomic32_inc_read_nob(ss_activep); + changing = erts_smp_atomic32_read_nob(ss_changingp); + if ((changing & ERTS_SCHDLR_SSPND_CHNG_MSB) + && *ss_onlinep == active_schedulers) { + erts_smp_atomic32_read_band_nob(ss_changingp, + ~ERTS_SCHDLR_SSPND_CHNG_MSB); + } + +#ifdef ERTS_DIRTY_SCHEDULERS + if (!ERTS_SCHEDULER_IS_DIRTY(esdp)) +#endif + ASSERT(no <= *ss_onlinep); + ASSERT(!ongoing_multi_scheduling_block()); + + } + + erts_smp_mtx_unlock(&schdlr_sspnd.mtx); + + ASSERT(curr_online); + +#ifdef ERTS_DIRTY_SCHEDULERS + if (!ERTS_SCHEDULER_IS_DIRTY(esdp)) +#endif + { + if (erts_system_profile_flags.scheduler) + profile_scheduler(make_small(esdp->no), am_active); + + if (!thr_prgr_active) { + erts_thr_progress_active(esdp, thr_prgr_active = 1); + sched_wall_time_change(esdp, 1); + } + } + + erts_smp_runq_lock(esdp->run_queue); + non_empty_runq(esdp->run_queue); + +#ifdef ERTS_DIRTY_SCHEDULERS + if (!ERTS_SCHEDULER_IS_DIRTY(esdp)) +#endif + { + schedule_bound_processes(esdp->run_queue, &sbp); + + erts_sched_check_cpu_bind_post_suspend(esdp); + } +} + +#else /* !ERTS_DIRTY_SCHEDULERS */ + static void suspend_scheduler(ErtsSchedulerData *esdp) { @@ -4466,6 +6649,7 @@ suspend_scheduler(ErtsSchedulerData *esdp) int wake = 0; erts_aint32_t aux_work; int thr_prgr_active = 1; + ErtsStuckBoundProcesses sbp = {NULL, NULL}; /* * Schedulers may be suspended in two different ways: @@ -4480,6 +6664,8 @@ suspend_scheduler(ErtsSchedulerData *esdp) ASSERT(no != 1); + evacuate_run_queue(esdp->run_queue, &sbp); + erts_smp_runq_unlock(esdp->run_queue); erts_sched_check_cpu_bind_prep_suspend(esdp); @@ -4543,19 +6729,28 @@ suspend_scheduler(ErtsSchedulerData *esdp) erts_smp_mtx_unlock(&schdlr_sspnd.mtx); while (1) { + erts_aint32_t qmask; erts_aint32_t flgs; + qmask = (ERTS_RUNQ_FLGS_GET(esdp->run_queue) + & ERTS_RUNQ_FLGS_QMASK); aux_work = erts_atomic32_read_acqb(&ssi->aux_work); - if (aux_work) { + if (aux_work|qmask) { if (!thr_prgr_active) { erts_thr_progress_active(esdp, thr_prgr_active = 1); sched_wall_time_change(esdp, 1); } - aux_work = handle_aux_work(&esdp->aux_work_data, - aux_work, - 1); + if (aux_work) + aux_work = handle_aux_work(&esdp->aux_work_data, + aux_work, + 1); if (aux_work && erts_thr_progress_update(esdp)) erts_thr_progress_leader_update(esdp); + if (qmask) { + erts_smp_runq_lock(esdp->run_queue); + evacuate_run_queue(esdp->run_queue, &sbp); + erts_smp_runq_unlock(esdp->run_queue); + } } if (!aux_work) { @@ -4625,79 +6820,333 @@ suspend_scheduler(ErtsSchedulerData *esdp) erts_smp_runq_lock(esdp->run_queue); non_empty_runq(esdp->run_queue); + schedule_bound_processes(esdp->run_queue, &sbp); + erts_sched_check_cpu_bind_post_suspend(esdp); } -#define ERTS_RUNQ_RESET_SUSPEND_INFO(RQ, DBG_ID) \ -do { \ - int pix__; \ - (RQ)->misc.evac_runq = NULL; \ - (RQ)->ports.info.migrate.runq = NULL; \ - (RQ)->flags &= ~(ERTS_RUNQ_FLGS_IMMIGRATE_QMASK \ - | ERTS_RUNQ_FLGS_EMIGRATE_QMASK \ - | ERTS_RUNQ_FLGS_EVACUATE_QMASK \ - | ERTS_RUNQ_FLG_SUSPENDED); \ - (RQ)->flags |= (ERTS_RUNQ_FLG_OUT_OF_WORK \ - | ERTS_RUNQ_FLG_HALFTIME_OUT_OF_WORK); \ - (RQ)->check_balance_reds = ERTS_RUNQ_CALL_CHECK_BALANCE_REDS; \ - erts_smp_atomic32_read_band_nob(&(RQ)->info_flags, ~ERTS_RUNQ_IFLG_SUSPENDED);\ - for (pix__ = 0; pix__ < ERTS_NO_PROC_PRIO_LEVELS; pix__++) { \ - (RQ)->procs.prio_info[pix__].max_len = 0; \ - (RQ)->procs.prio_info[pix__].reds = 0; \ - ERTS_DBG_SET_INVALID_RUNQP((RQ)->procs.prio_info[pix__].migrate.runq,\ - (DBG_ID)); \ - } \ - (RQ)->ports.info.max_len = 0; \ - (RQ)->ports.info.reds = 0; \ -} while (0) - -#define ERTS_RUNQ_RESET_MIGRATION_PATHS__(RQ) \ -do { \ - ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked((RQ))); \ - (RQ)->misc.evac_runq = NULL; \ - (RQ)->ports.info.migrate.runq = NULL; \ - (RQ)->flags &= ~(ERTS_RUNQ_FLGS_IMMIGRATE_QMASK \ - | ERTS_RUNQ_FLGS_EMIGRATE_QMASK \ - | ERTS_RUNQ_FLGS_EVACUATE_QMASK); \ -} while (0) - -#ifdef DEBUG -#define ERTS_RUNQ_RESET_MIGRATION_PATHS(RQ, DBG_ID) \ -do { \ - int pix__; \ - ERTS_RUNQ_RESET_MIGRATION_PATHS__((RQ)); \ - for (pix__ = 0; pix__ < ERTS_NO_PROC_PRIO_LEVELS; pix__++) \ - ERTS_DBG_SET_INVALID_RUNQP((RQ)->procs.prio_info[pix__].migrate.runq,\ - (DBG_ID)); \ -} while (0) -#else -#define ERTS_RUNQ_RESET_MIGRATION_PATHS(RQ, DBG_ID) \ - ERTS_RUNQ_RESET_MIGRATION_PATHS__((RQ)) #endif ErtsSchedSuspendResult erts_schedulers_state(Uint *total, Uint *online, Uint *active, + Uint *dirty_cpu, + Uint *dirty_cpu_online, + Uint *dirty_io, int yield_allowed) { - int res; + int res = ERTS_SCHDLR_SSPND_EINVAL; erts_aint32_t changing; erts_smp_mtx_lock(&schdlr_sspnd.mtx); changing = erts_smp_atomic32_read_nob(&schdlr_sspnd.changing); +#ifdef ERTS_DIRTY_SCHEDULERS + changing |= (erts_smp_atomic32_read_nob(&schdlr_sspnd.dirty_cpu_changing) + | erts_smp_atomic32_read_nob(&schdlr_sspnd.dirty_io_changing)); +#endif if (yield_allowed && (changing & ~ERTS_SCHDLR_SSPND_CHNG_WAITER)) res = ERTS_SCHDLR_SSPND_YIELD_RESTART; else { - *active = *online = schdlr_sspnd.online; - if (ongoing_multi_scheduling_block()) + if (active) + *active = schdlr_sspnd.online; + if (online) + *online = schdlr_sspnd.online; + if (ongoing_multi_scheduling_block() && active) *active = 1; +#ifdef ERTS_DIRTY_SCHEDULERS + if (dirty_cpu_online) + *dirty_cpu_online = schdlr_sspnd.dirty_cpu_online; +#endif res = ERTS_SCHDLR_SSPND_DONE; } erts_smp_mtx_unlock(&schdlr_sspnd.mtx); - *total = erts_no_schedulers; + if (total) + *total = erts_no_schedulers; +#ifdef ERTS_DIRTY_SCHEDULERS + if (dirty_cpu) + *dirty_cpu = erts_no_dirty_cpu_schedulers; + if (dirty_io) + *dirty_io = erts_no_dirty_io_schedulers; +#endif + return res; +} + +#ifdef ERTS_DIRTY_SCHEDULERS + +ErtsSchedSuspendResult +erts_set_schedulers_online(Process *p, + ErtsProcLocks plocks, + Sint new_no, + Sint *old_no +#ifdef ERTS_DIRTY_SCHEDULERS + , int dirty_only +#endif + ) +{ + ErtsSchedulerData *esdp; + int ix, res = -1, no, have_unlocked_plocks, end_wait; + erts_aint32_t changing = 0; +#ifdef ERTS_DIRTY_SCHEDULERS + ErtsSchedulerSleepInfo* ssi; + int dirty_no, change_dirty; +#endif + + if (new_no < 1) + return ERTS_SCHDLR_SSPND_EINVAL; +#ifdef ERTS_DIRTY_SCHEDULERS + else if (dirty_only && erts_no_dirty_cpu_schedulers < new_no) + return ERTS_SCHDLR_SSPND_EINVAL; +#endif + else if (erts_no_schedulers < new_no) + return ERTS_SCHDLR_SSPND_EINVAL; + + esdp = ERTS_PROC_GET_SCHDATA(p); + end_wait = 0; + + erts_smp_mtx_lock(&schdlr_sspnd.mtx); + + have_unlocked_plocks = 0; + no = (int) new_no; + +#ifdef ERTS_DIRTY_SCHEDULERS + ASSERT(schdlr_sspnd.dirty_cpu_online <= erts_no_dirty_cpu_schedulers); + if (dirty_only) { + if (no > schdlr_sspnd.online) { + erts_smp_mtx_unlock(&schdlr_sspnd.mtx); + return ERTS_SCHDLR_SSPND_EINVAL; + } + dirty_no = no; + } else { + /* + * Adjust the number of dirty CPU schedulers online relative to the + * adjustment made to the number of normal schedulers online. + */ + int total_pct = erts_no_dirty_cpu_schedulers*100/erts_no_schedulers; + int onln_pct = no*total_pct/schdlr_sspnd.online; + dirty_no = schdlr_sspnd.dirty_cpu_online*onln_pct/100; + if (dirty_no == 0) + dirty_no = 1; + ASSERT(dirty_no <= erts_no_dirty_cpu_schedulers); + } +#endif + changing = erts_smp_atomic32_read_nob(&schdlr_sspnd.changing); +#ifdef ERTS_DIRTY_SCHEDULERS + changing |= erts_smp_atomic32_read_nob(&schdlr_sspnd.dirty_cpu_changing); +#endif + if (changing) { + res = ERTS_SCHDLR_SSPND_YIELD_RESTART; + } + else { + int online = *old_no = schdlr_sspnd.online; +#ifdef ERTS_DIRTY_SCHEDULERS + int dirty_online = schdlr_sspnd.dirty_cpu_online; + + if (dirty_only) { + *old_no = schdlr_sspnd.dirty_cpu_online; + if (dirty_no == schdlr_sspnd.dirty_cpu_online) { + res = ERTS_SCHDLR_SSPND_DONE; + } + change_dirty = 1; + } else { +#endif + if (no == schdlr_sspnd.online) { +#ifdef ERTS_DIRTY_SCHEDULERS + dirty_only = 1; + if (dirty_no == schdlr_sspnd.dirty_cpu_online) +#endif + res = ERTS_SCHDLR_SSPND_DONE; +#ifdef ERTS_DIRTY_SCHEDULERS + else + change_dirty = 1; +#endif + } +#ifdef ERTS_DIRTY_SCHEDULERS + else + change_dirty = (dirty_no != schdlr_sspnd.dirty_cpu_online); + } +#endif + if (res == -1) + { + int increase = (no > online); +#ifdef ERTS_DIRTY_SCHEDULERS + if (!dirty_only) { +#endif + ERTS_SCHDLR_SSPND_CHNG_SET((ERTS_SCHDLR_SSPND_CHNG_ONLN + | ERTS_SCHDLR_SSPND_CHNG_WAITER), 0); + schdlr_sspnd.online = no; +#ifdef ERTS_DIRTY_SCHEDULERS + } else + increase = (dirty_no > dirty_online); + if (change_dirty) { + ERTS_SCHDLR_SSPND_DIRTY_CPU_CHNG_SET((ERTS_SCHDLR_SSPND_CHNG_ONLN + | ERTS_SCHDLR_SSPND_CHNG_WAITER), 0); + schdlr_sspnd.dirty_cpu_online = dirty_no; + } +#endif + if (increase) { + int ix; +#ifdef ERTS_DIRTY_SCHEDULERS + if (!dirty_only) { +#endif + schdlr_sspnd.wait_curr_online = no; + if (ongoing_multi_scheduling_block()) { + for (ix = online; ix < no; ix++) + erts_sched_poke(ERTS_SCHED_SLEEP_INFO_IX(ix)); + } + else { + if (plocks) { + have_unlocked_plocks = 1; + erts_smp_proc_unlock(p, plocks); + } + change_no_used_runqs(no); + + for (ix = online; ix < no; ix++) + resume_run_queue(ERTS_RUNQ_IX(ix)); + + for (ix = no; ix < erts_no_run_queues; ix++) + suspend_run_queue(ERTS_RUNQ_IX(ix)); + } +#ifdef ERTS_DIRTY_SCHEDULERS + } + if (change_dirty) { + schdlr_sspnd.dirty_cpu_wait_curr_online = dirty_no; + ASSERT(schdlr_sspnd.dirty_cpu_curr_online != + schdlr_sspnd.dirty_cpu_wait_curr_online); + if (ongoing_multi_scheduling_block()) { + for (ix = dirty_online; ix < dirty_no; ix++) { + ssi = ERTS_DIRTY_CPU_SCHED_SLEEP_INFO_IX(ix); + erts_sched_poke(ssi); + } + } else { + for (ix = dirty_online; ix < dirty_no; ix++) { + ssi = ERTS_DIRTY_CPU_SCHED_SLEEP_INFO_IX(ix); + scheduler_ssi_resume_wake(ssi); + erts_smp_atomic32_read_band_nob(&ssi->flags, + ~ERTS_SSI_FLG_SUSPENDED); + } + wake_dirty_schedulers(ERTS_DIRTY_CPU_RUNQ, 0); + } + } +#endif + res = ERTS_SCHDLR_SSPND_DONE; + } + else /* if (no < online) */ { +#ifdef ERTS_DIRTY_SCHEDULERS + if (change_dirty) { + schdlr_sspnd.dirty_cpu_wait_curr_online = dirty_no; + ASSERT(schdlr_sspnd.dirty_cpu_curr_online != + schdlr_sspnd.dirty_cpu_wait_curr_online); + if (ongoing_multi_scheduling_block()) { + for (ix = dirty_no; ix < dirty_online; ix++) { + ssi = ERTS_DIRTY_CPU_SCHED_SLEEP_INFO_IX(ix); + erts_sched_poke(ssi); + } + } else { + for (ix = dirty_no; ix < dirty_online; ix++) { + ssi = ERTS_DIRTY_CPU_SCHED_SLEEP_INFO_IX(ix); + erts_smp_atomic32_read_bor_nob(&ssi->flags, + ERTS_SSI_FLG_SUSPENDED); + } + wake_dirty_schedulers(ERTS_DIRTY_CPU_RUNQ, 0); + } + } + if (dirty_only) { + res = ERTS_SCHDLR_SSPND_DONE; + } + else +#endif + { + if (p->scheduler_data->no <= no) { + res = ERTS_SCHDLR_SSPND_DONE; + schdlr_sspnd.wait_curr_online = no; + } + else { + /* + * Yield! Current process needs to migrate + * before bif returns. + */ + res = ERTS_SCHDLR_SSPND_YIELD_DONE; + schdlr_sspnd.wait_curr_online = no+1; + } + + if (ongoing_multi_scheduling_block()) { + for (ix = no; ix < online; ix++) + erts_sched_poke(ERTS_SCHED_SLEEP_INFO_IX(ix)); + } + else { + if (plocks) { + have_unlocked_plocks = 1; + erts_smp_proc_unlock(p, plocks); + } + + change_no_used_runqs(no); + for (ix = no; ix < erts_no_run_queues; ix++) + suspend_run_queue(ERTS_RUNQ_IX(ix)); + + for (ix = no; ix < online; ix++) { + ErtsRunQueue *rq = ERTS_RUNQ_IX(ix); + wake_scheduler(rq); + } + } + } + } + +#ifdef ERTS_DIRTY_SCHEDULERS + if (change_dirty) { + while (schdlr_sspnd.dirty_cpu_curr_online != schdlr_sspnd.dirty_cpu_wait_curr_online) + erts_smp_cnd_wait(&schdlr_sspnd.cnd, &schdlr_sspnd.mtx); + ERTS_SCHDLR_SSPND_DIRTY_CPU_CHNG_SET(0, ERTS_SCHDLR_SSPND_CHNG_WAITER); + erts_smp_atomic32_read_band_nob(&schdlr_sspnd.dirty_cpu_changing, + ~ERTS_SCHDLR_SSPND_CHNG_WAITER); + } + if (!dirty_only) +#endif + { + if (schdlr_sspnd.curr_online != schdlr_sspnd.wait_curr_online) { + erts_smp_mtx_unlock(&schdlr_sspnd.mtx); + if (plocks && !have_unlocked_plocks) { + have_unlocked_plocks = 1; + erts_smp_proc_unlock(p, plocks); + } + erts_thr_progress_active(esdp, 0); + erts_thr_progress_prepare_wait(esdp); + end_wait = 1; + erts_smp_mtx_lock(&schdlr_sspnd.mtx); + } + + while (schdlr_sspnd.curr_online != schdlr_sspnd.wait_curr_online) + erts_smp_cnd_wait(&schdlr_sspnd.cnd, &schdlr_sspnd.mtx); + + ASSERT(res != ERTS_SCHDLR_SSPND_DONE + ? (ERTS_SCHDLR_SSPND_CHNG_WAITER + & erts_smp_atomic32_read_nob(&schdlr_sspnd.changing)) + : (ERTS_SCHDLR_SSPND_CHNG_WAITER + == erts_smp_atomic32_read_nob(&schdlr_sspnd.changing))); + erts_smp_atomic32_read_band_nob(&schdlr_sspnd.changing, + ~ERTS_SCHDLR_SSPND_CHNG_WAITER); + } + } + } + + erts_smp_mtx_unlock(&schdlr_sspnd.mtx); +#ifdef ERTS_DIRTY_SCHEDULERS + ASSERT(schdlr_sspnd.dirty_cpu_online <= schdlr_sspnd.online); + if (!dirty_only) +#endif + { + if (end_wait) { + erts_thr_progress_finalize_wait(esdp); + erts_thr_progress_active(esdp, 1); + } + if (have_unlocked_plocks) + erts_smp_proc_lock(p, plocks); + } + return res; } +#else /* !ERTS_DIRTY_SCHEDULERS */ + ErtsSchedSuspendResult erts_set_schedulers_online(Process *p, ErtsProcLocks plocks, @@ -4744,27 +7193,13 @@ erts_set_schedulers_online(Process *p, have_unlocked_plocks = 1; erts_smp_proc_unlock(p, plocks); } - erts_smp_mtx_unlock(&schdlr_sspnd.mtx); - erts_smp_mtx_lock(&balance_info.update_mtx); - for (ix = online; ix < no; ix++) { - ErtsRunQueue *rq = ERTS_RUNQ_IX(ix); - erts_smp_runq_lock(rq); - ERTS_RUNQ_RESET_SUSPEND_INFO(rq, 0x5); - erts_smp_runq_unlock(rq); - scheduler_ix_resume_wake(ix); - } - /* - * Spread evacuation paths among all online - * run queues. - */ - for (ix = no; ix < erts_no_run_queues; ix++) { - ErtsRunQueue *from_rq = ERTS_RUNQ_IX(ix); - ErtsRunQueue *to_rq = ERTS_RUNQ_IX(ix % no); - evacuate_run_queue(from_rq, to_rq); - } - set_no_used_runqs(no); - erts_smp_mtx_unlock(&balance_info.update_mtx); - erts_smp_mtx_lock(&schdlr_sspnd.mtx); + change_no_used_runqs(no); + + for (ix = online; ix < no; ix++) + resume_run_queue(ERTS_RUNQ_IX(ix)); + + for (ix = no; ix < erts_no_run_queues; ix++) + suspend_run_queue(ERTS_RUNQ_IX(ix)); } res = ERTS_SCHDLR_SSPND_DONE; } @@ -4791,28 +7226,14 @@ erts_set_schedulers_online(Process *p, have_unlocked_plocks = 1; erts_smp_proc_unlock(p, plocks); } - erts_smp_mtx_unlock(&schdlr_sspnd.mtx); - erts_smp_mtx_lock(&balance_info.update_mtx); - - for (ix = 0; ix < online; ix++) { - ErtsRunQueue *rq = ERTS_RUNQ_IX(ix); - erts_smp_runq_lock(rq); - ERTS_RUNQ_RESET_MIGRATION_PATHS(rq, 0x6); - erts_smp_runq_unlock(rq); - } - /* - * Evacutation order important! Newly suspended run queues - * has to be evacuated last. - */ - for (ix = erts_no_run_queues-1; ix >= no; ix--) - evacuate_run_queue(ERTS_RUNQ_IX(ix), - ERTS_RUNQ_IX(ix % no)); - set_no_used_runqs(no); - erts_smp_mtx_unlock(&balance_info.update_mtx); - erts_smp_mtx_lock(&schdlr_sspnd.mtx); + + change_no_used_runqs(no); + for (ix = no; ix < erts_no_run_queues; ix++) + suspend_run_queue(ERTS_RUNQ_IX(ix)); + for (ix = no; ix < online; ix++) { ErtsRunQueue *rq = ERTS_RUNQ_IX(ix); - wake_scheduler(rq, 0); + wake_scheduler(rq); } } } @@ -4854,29 +7275,40 @@ erts_set_schedulers_online(Process *p, return res; } +#endif + ErtsSchedSuspendResult erts_block_multi_scheduling(Process *p, ErtsProcLocks plocks, int on, int all) { - int ix, res, have_unlocked_plocks = 0; + int ix, res, have_unlocked_plocks = 0, online; erts_aint32_t changing; ErtsProcList *plp; +#ifdef ERTS_DIRTY_SCHEDULERS + ErtsSchedulerSleepInfo* ssi; +#endif erts_smp_mtx_lock(&schdlr_sspnd.mtx); changing = erts_smp_atomic32_read_nob(&schdlr_sspnd.changing); +#ifdef ERTS_DIRTY_SCHEDULERS + changing |= (erts_smp_atomic32_read_nob(&schdlr_sspnd.dirty_cpu_changing) + | erts_smp_atomic32_read_nob(&schdlr_sspnd.dirty_io_changing)); +#endif if (changing) { res = ERTS_SCHDLR_SSPND_YIELD_RESTART; /* Yield */ } else if (on) { /* ------ BLOCK ------ */ if (schdlr_sspnd.msb.procs) { plp = proclist_create(p); - plp->next = schdlr_sspnd.msb.procs; - schdlr_sspnd.msb.procs = plp; + erts_proclist_store_last(&schdlr_sspnd.msb.procs, plp); p->flags |= F_HAVE_BLCKD_MSCHED; ASSERT(erts_smp_atomic32_read_nob(&schdlr_sspnd.active) == 1); +#ifdef ERTS_DIRTY_SCHEDULERS + ASSERT(erts_smp_atomic32_read_nob(&schdlr_sspnd.dirty_cpu_active) == 0); + ASSERT(erts_smp_atomic32_read_nob(&schdlr_sspnd.dirty_io_active) == 0); +#endif ASSERT(p->scheduler_data->no == 1); res = ERTS_SCHDLR_SSPND_DONE_MSCHED_BLOCKED; - } - else { + } else { int online = schdlr_sspnd.online; p->flags |= F_HAVE_BLCKD_MSCHED; if (plocks) { @@ -4888,6 +7320,35 @@ erts_block_multi_scheduling(Process *p, ErtsProcLocks plocks, int on, int all) if (online == 1) { res = ERTS_SCHDLR_SSPND_DONE_MSCHED_BLOCKED; ASSERT(erts_smp_atomic32_read_nob(&schdlr_sspnd.active) == 1); +#ifdef ERTS_DIRTY_SCHEDULERS + ASSERT(erts_smp_atomic32_read_nob(&schdlr_sspnd.dirty_cpu_active) == 1); + ASSERT(!(erts_smp_atomic32_read_nob(&ERTS_DIRTY_CPU_SCHED_SLEEP_INFO_IX(0)->flags) + & ERTS_SSI_FLG_SUSPENDED)); + schdlr_sspnd.msb.dirty_cpu_wait_active = 0; + ERTS_SCHDLR_SSPND_DIRTY_CPU_CHNG_SET((ERTS_SCHDLR_SSPND_CHNG_MSB + | ERTS_SCHDLR_SSPND_CHNG_WAITER), 0); + ssi = ERTS_DIRTY_CPU_SCHED_SLEEP_INFO_IX(0); + erts_smp_atomic32_read_bor_nob(&ssi->flags, ERTS_SSI_FLG_SUSPENDED); + wake_dirty_schedulers(ERTS_DIRTY_CPU_RUNQ, 0); + while (erts_smp_atomic32_read_nob(&schdlr_sspnd.dirty_cpu_active) + != schdlr_sspnd.msb.dirty_cpu_wait_active) + erts_smp_cnd_wait(&schdlr_sspnd.cnd, &schdlr_sspnd.mtx); + ERTS_SCHDLR_SSPND_DIRTY_CPU_CHNG_SET(0, ERTS_SCHDLR_SSPND_CHNG_WAITER); + + schdlr_sspnd.msb.dirty_io_wait_active = 0; + ERTS_SCHDLR_SSPND_DIRTY_IO_CHNG_SET((ERTS_SCHDLR_SSPND_CHNG_MSB + | ERTS_SCHDLR_SSPND_CHNG_WAITER), 0); + for (ix = 0; ix < erts_no_dirty_io_schedulers; ix++) { + ssi = ERTS_DIRTY_IO_SCHED_SLEEP_INFO_IX(ix); + erts_smp_atomic32_read_bor_nob(&ssi->flags, + ERTS_SSI_FLG_SUSPENDED); + } + wake_dirty_schedulers(ERTS_DIRTY_IO_RUNQ, 0); + while (erts_smp_atomic32_read_nob(&schdlr_sspnd.dirty_io_active) + != schdlr_sspnd.msb.dirty_io_wait_active) + erts_smp_cnd_wait(&schdlr_sspnd.cnd, &schdlr_sspnd.mtx); + ERTS_SCHDLR_SSPND_DIRTY_IO_CHNG_SET(0, ERTS_SCHDLR_SSPND_CHNG_WAITER); +#endif ASSERT(p->scheduler_data->no == 1); } else { @@ -4906,25 +7367,45 @@ erts_block_multi_scheduling(Process *p, ErtsProcLocks plocks, int on, int all) schdlr_sspnd.msb.wait_active = 2; } - erts_smp_mtx_unlock(&schdlr_sspnd.mtx); - erts_smp_mtx_lock(&balance_info.update_mtx); - set_no_used_runqs(1); - for (ix = 0; ix < online; ix++) { +#ifdef ERTS_DIRTY_SCHEDULERS + schdlr_sspnd.msb.dirty_cpu_wait_active = 0; + ERTS_SCHDLR_SSPND_DIRTY_CPU_CHNG_SET((ERTS_SCHDLR_SSPND_CHNG_MSB + | ERTS_SCHDLR_SSPND_CHNG_WAITER), 0); + for (ix = 0; ix < erts_no_dirty_cpu_schedulers; ix++) { + ssi = ERTS_DIRTY_CPU_SCHED_SLEEP_INFO_IX(ix); + erts_smp_atomic32_read_bor_nob(&ssi->flags, + ERTS_SSI_FLG_SUSPENDED); + } + wake_dirty_schedulers(ERTS_DIRTY_CPU_RUNQ, 0); + while (erts_smp_atomic32_read_nob(&schdlr_sspnd.dirty_cpu_active) + != schdlr_sspnd.msb.dirty_cpu_wait_active) + erts_smp_cnd_wait(&schdlr_sspnd.cnd, &schdlr_sspnd.mtx); + ERTS_SCHDLR_SSPND_DIRTY_CPU_CHNG_SET(0, ERTS_SCHDLR_SSPND_CHNG_WAITER); + ASSERT(schdlr_sspnd.dirty_cpu_curr_online == schdlr_sspnd.dirty_cpu_online); + + schdlr_sspnd.msb.dirty_io_wait_active = 0; + ERTS_SCHDLR_SSPND_DIRTY_IO_CHNG_SET((ERTS_SCHDLR_SSPND_CHNG_MSB + | ERTS_SCHDLR_SSPND_CHNG_WAITER), 0); + for (ix = 0; ix < erts_no_dirty_io_schedulers; ix++) { + ssi = ERTS_DIRTY_IO_SCHED_SLEEP_INFO_IX(ix); + erts_smp_atomic32_read_bor_nob(&ssi->flags, + ERTS_SSI_FLG_SUSPENDED); + } + wake_dirty_schedulers(ERTS_DIRTY_IO_RUNQ, 0); + while (erts_smp_atomic32_read_nob(&schdlr_sspnd.dirty_io_active) + != schdlr_sspnd.msb.dirty_io_wait_active) + erts_smp_cnd_wait(&schdlr_sspnd.cnd, &schdlr_sspnd.mtx); + ERTS_SCHDLR_SSPND_DIRTY_IO_CHNG_SET(0, ERTS_SCHDLR_SSPND_CHNG_WAITER); + ASSERT(schdlr_sspnd.dirty_io_curr_online == schdlr_sspnd.dirty_io_online); +#endif + change_no_used_runqs(1); + for (ix = 1; ix < erts_no_run_queues; ix++) + suspend_run_queue(ERTS_RUNQ_IX(ix)); + + for (ix = 1; ix < online; ix++) { ErtsRunQueue *rq = ERTS_RUNQ_IX(ix); - erts_smp_runq_lock(rq); - ASSERT(!(rq->flags & ERTS_RUNQ_FLG_SUSPENDED)); - ERTS_RUNQ_RESET_MIGRATION_PATHS(rq, 0x7); - erts_smp_runq_unlock(rq); + wake_scheduler(rq); } - /* - * Evacuate all activities in all other run queues - * into the first run queue. Note order is important, - * online run queues has to be evacuated last. - */ - for (ix = erts_no_run_queues-1; ix >= 1; ix--) - evacuate_run_queue(ERTS_RUNQ_IX(ix), ERTS_RUNQ_IX(0)); - erts_smp_mtx_unlock(&balance_info.update_mtx); - erts_smp_mtx_lock(&schdlr_sspnd.mtx); if (erts_smp_atomic32_read_nob(&schdlr_sspnd.active) != schdlr_sspnd.msb.wait_active) { @@ -4957,6 +7438,7 @@ erts_block_multi_scheduling(Process *p, ErtsProcLocks plocks, int on, int all) erts_smp_mtx_lock(&schdlr_sspnd.mtx); } + ASSERT(res != ERTS_SCHDLR_SSPND_DONE_MSCHED_BLOCKED ? (ERTS_SCHDLR_SSPND_CHNG_WAITER & erts_smp_atomic32_read_nob(&schdlr_sspnd.changing)) @@ -4966,17 +7448,7 @@ erts_block_multi_scheduling(Process *p, ErtsProcLocks plocks, int on, int all) ~ERTS_SCHDLR_SSPND_CHNG_WAITER); } plp = proclist_create(p); - plp->next = schdlr_sspnd.msb.procs; - schdlr_sspnd.msb.procs = plp; -#ifdef DEBUG - ERTS_FOREACH_RUNQ(srq, - { - if (srq != ERTS_RUNQ_IX(0)) { - ASSERT(ERTS_EMPTY_RUNQ(srq)); - ASSERT(srq->flags & ERTS_RUNQ_FLG_SUSPENDED); - } - }); -#endif + erts_proclist_store_last(&schdlr_sspnd.msb.procs, plp); ASSERT(p->scheduler_data); } } @@ -4987,20 +7459,16 @@ erts_block_multi_scheduling(Process *p, ErtsProcLocks plocks, int on, int all) } else { /* ------ UNBLOCK ------ */ if (p->flags & F_HAVE_BLCKD_MSCHED) { - ErtsProcList **plpp = &schdlr_sspnd.msb.procs; - plp = schdlr_sspnd.msb.procs; + ErtsProcList *plp = erts_proclist_peek_first(schdlr_sspnd.msb.procs); while (plp) { - if (!proclist_same(plp, p)){ - plpp = &plp->next; - plp = plp->next; - } - else { - *plpp = plp->next; - proclist_destroy(plp); + ErtsProcList *tmp_plp = plp; + plp = erts_proclist_peek_next(schdlr_sspnd.msb.procs, plp); + if (erts_proclist_same(tmp_plp, p)) { + erts_proclist_remove(&schdlr_sspnd.msb.procs, tmp_plp); + proclist_destroy(tmp_plp); if (!all) break; - plp = *plpp; } } } @@ -5008,66 +7476,50 @@ erts_block_multi_scheduling(Process *p, ErtsProcLocks plocks, int on, int all) res = ERTS_SCHDLR_SSPND_DONE_MSCHED_BLOCKED; else { ERTS_SCHDLR_SSPND_CHNG_SET(ERTS_SCHDLR_SSPND_CHNG_MSB, 0); -#ifdef DEBUG - ERTS_FOREACH_RUNQ(rq, - { - if (rq != p->scheduler_data->run_queue) { - if (!ERTS_EMPTY_RUNQ(rq)) { - Process *rp; - int pix; - ASSERT(rq->ports.info.len == 0); - for (pix = 0; pix < ERTS_NO_PROC_PRIO_LEVELS; pix++) { - for (rp = rq->procs.prio[pix].first; - rp; - rp = rp->next) { - ASSERT(rp->bound_runq); - } - } - } - - ASSERT(rq->flags & ERTS_RUNQ_FLG_SUSPENDED); - } - }); -#endif p->flags &= ~F_HAVE_BLCKD_MSCHED; schdlr_sspnd.msb.ongoing = 0; if (schdlr_sspnd.online == 1) { - /* No schedulers to resume */ + /* No normal schedulers to resume */ ASSERT(erts_smp_atomic32_read_nob(&schdlr_sspnd.active) == 1); ERTS_SCHDLR_SSPND_CHNG_SET(0, ERTS_SCHDLR_SSPND_CHNG_MSB); } else { - int online = schdlr_sspnd.online; - erts_smp_mtx_unlock(&schdlr_sspnd.mtx); + online = schdlr_sspnd.online; if (plocks) { have_unlocked_plocks = 1; erts_smp_proc_unlock(p, plocks); } - erts_smp_mtx_lock(&balance_info.update_mtx); + + change_no_used_runqs(online); /* Resume all online run queues */ - for (ix = 1; ix < online; ix++) { - ErtsRunQueue *rq = ERTS_RUNQ_IX(ix); - erts_smp_runq_lock(rq); - ERTS_RUNQ_RESET_SUSPEND_INFO(rq, 0x4); - erts_smp_runq_unlock(rq); - scheduler_ix_resume_wake(ix); - } + for (ix = 1; ix < online; ix++) + resume_run_queue(ERTS_RUNQ_IX(ix)); - /* Spread evacuation paths among all online run queues */ for (ix = online; ix < erts_no_run_queues; ix++) - evacuate_run_queue(ERTS_RUNQ_IX(ix), - ERTS_RUNQ_IX(ix % online)); - - set_no_used_runqs(online); - /* Make sure that we balance soon... */ - balance_info.forced_check_balance = 1; - erts_smp_runq_lock(ERTS_RUNQ_IX(0)); - ERTS_RUNQ_IX(0)->check_balance_reds = 0; - erts_smp_runq_unlock(ERTS_RUNQ_IX(0)); - erts_smp_mtx_unlock(&balance_info.update_mtx); - erts_smp_mtx_lock(&schdlr_sspnd.mtx); + suspend_run_queue(ERTS_RUNQ_IX(ix)); + } +#ifdef ERTS_DIRTY_SCHEDULERS + ERTS_SCHDLR_SSPND_DIRTY_CPU_CHNG_SET(ERTS_SCHDLR_SSPND_CHNG_MSB, 0); + schdlr_sspnd.msb.dirty_cpu_wait_active = schdlr_sspnd.dirty_cpu_online; + for (ix = 0; ix < schdlr_sspnd.dirty_cpu_online; ix++) { + ssi = ERTS_DIRTY_CPU_SCHED_SLEEP_INFO_IX(ix); + scheduler_ssi_resume_wake(ssi); + erts_smp_atomic32_read_band_nob(&ssi->flags, + ~ERTS_SSI_FLG_SUSPENDED); } + wake_dirty_schedulers(ERTS_DIRTY_CPU_RUNQ, 0); + + ERTS_SCHDLR_SSPND_DIRTY_IO_CHNG_SET(ERTS_SCHDLR_SSPND_CHNG_MSB, 0); + schdlr_sspnd.msb.dirty_io_wait_active = erts_no_dirty_io_schedulers; + for (ix = 0; ix < erts_no_dirty_io_schedulers; ix++) { + ssi = ERTS_DIRTY_IO_SCHED_SLEEP_INFO_IX(ix); + scheduler_ssi_resume_wake(ssi); + erts_smp_atomic32_read_band_nob(&ssi->flags, + ~ERTS_SSI_FLG_SUSPENDED); + } + wake_dirty_schedulers(ERTS_DIRTY_IO_RUNQ, 0); +#endif res = ERTS_SCHDLR_SSPND_DONE; } } @@ -5106,23 +7558,25 @@ erts_multi_scheduling_blockers(Process *p) Eterm res = NIL; erts_smp_mtx_lock(&schdlr_sspnd.mtx); - if (schdlr_sspnd.msb.procs) { + if (!erts_proclist_is_empty(schdlr_sspnd.msb.procs)) { Eterm *hp, *hp_end; ErtsProcList *plp1, *plp2; - Uint max_size; - ASSERT(schdlr_sspnd.msb.procs); - for (max_size = 0, plp1 = schdlr_sspnd.msb.procs; + Uint max_size = 0; + + for (plp1 = erts_proclist_peek_first(schdlr_sspnd.msb.procs); plp1; - plp1 = plp1->next) { + plp1 = erts_proclist_peek_next(schdlr_sspnd.msb.procs, plp1)) { max_size += 2; } ASSERT(max_size); hp = HAlloc(p, max_size); hp_end = hp + max_size; - for (plp1 = schdlr_sspnd.msb.procs; plp1; plp1 = plp1->next) { - for (plp2 = schdlr_sspnd.msb.procs; + for (plp1 = erts_proclist_peek_first(schdlr_sspnd.msb.procs); + plp1; + plp1 = erts_proclist_peek_next(schdlr_sspnd.msb.procs, plp1)) { + for (plp2 = erts_proclist_peek_first(schdlr_sspnd.msb.procs); plp2->pid != plp1->pid; - plp2 = plp2->next); + plp2 = erts_proclist_peek_next(schdlr_sspnd.msb.procs, plp2)); if (plp2 == plp1) { res = CONS(hp, plp1->pid, res); hp += 2; @@ -5192,7 +7646,11 @@ sched_thread_func(void *vesdp) erts_smp_atomic32_read_band_nob(&schdlr_sspnd.changing, ~ERTS_SCHDLR_SSPND_CHNG_ONLN); if (no != 1) +#ifdef ERTS_DIRTY_SCHEDULERS + erts_smp_cnd_broadcast(&schdlr_sspnd.cnd); +#else erts_smp_cnd_signal(&schdlr_sspnd.cnd); +#endif } if (no == 1) { @@ -5222,18 +7680,170 @@ sched_thread_func(void *vesdp) return NULL; } +#ifdef ERTS_DIRTY_SCHEDULERS +#ifdef ERTS_SMP +static void* +sched_dirty_cpu_thread_func(void *vesdp) +{ + ErtsThrPrgrCallbacks callbacks; + ErtsSchedulerData *esdp = vesdp; + Uint no = ERTS_DIRTY_SCHEDULER_NO(esdp); + ERTS_DIRTY_SCHEDULER_TYPE(esdp) = ERTS_DIRTY_CPU_SCHEDULER; + ASSERT(no != 0); + ERTS_DIRTY_CPU_SCHED_SLEEP_INFO_IX(no-1)->event = erts_tse_fetch(); + callbacks.arg = (void *) esdp->ssi; + callbacks.wakeup = thr_prgr_wakeup; + callbacks.prepare_wait = NULL; + callbacks.wait = NULL; + callbacks.finalize_wait = NULL; + + erts_thr_progress_register_unmanaged_thread(&callbacks); +#ifdef ERTS_ENABLE_LOCK_CHECK + { + char buf[31]; + erts_snprintf(&buf[0], 31, "dirty cpu scheduler %beu", no); + erts_lc_set_thread_name(&buf[0]); + } +#endif + erts_tsd_set(sched_data_key, vesdp); +#if ERTS_USE_ASYNC_READY_Q + esdp->aux_work_data.async_ready.queue = NULL; +#endif + + erts_proc_lock_prepare_proc_lock_waiter(); + +#ifdef HIPE + hipe_thread_signal_init(); +#endif + erts_thread_init_float(); + + erts_smp_mtx_lock(&schdlr_sspnd.mtx); + ASSERT(erts_smp_atomic32_read_nob(&schdlr_sspnd.dirty_cpu_changing) + & ERTS_SCHDLR_SSPND_CHNG_ONLN); + + if (--schdlr_sspnd.dirty_cpu_curr_online == schdlr_sspnd.dirty_cpu_wait_curr_online) { + erts_smp_atomic32_read_band_nob(&schdlr_sspnd.dirty_cpu_changing, + ~ERTS_SCHDLR_SSPND_CHNG_ONLN); + if (no != 1) + erts_smp_cnd_broadcast(&schdlr_sspnd.cnd); + } + + if (no == 1) { + while (schdlr_sspnd.dirty_cpu_curr_online != schdlr_sspnd.dirty_cpu_wait_curr_online) + erts_smp_cnd_wait(&schdlr_sspnd.cnd, &schdlr_sspnd.mtx); + ERTS_SCHDLR_SSPND_DIRTY_CPU_CHNG_SET(0, ERTS_SCHDLR_SSPND_CHNG_WAITER); + } + erts_smp_mtx_unlock(&schdlr_sspnd.mtx); + + process_main(); + /* No schedulers should *ever* terminate */ + erl_exit(ERTS_ABORT_EXIT, + "Dirty CPU scheduler thread number %beu terminated\n", + no); + return NULL; +} + +static void* +sched_dirty_io_thread_func(void *vesdp) +{ + ErtsThrPrgrCallbacks callbacks; + ErtsSchedulerData *esdp = vesdp; + Uint no = ERTS_DIRTY_SCHEDULER_NO(esdp); + ERTS_DIRTY_SCHEDULER_TYPE(esdp) = ERTS_DIRTY_IO_SCHEDULER; + ASSERT(no != 0); + ERTS_DIRTY_IO_SCHED_SLEEP_INFO_IX(no-1)->event = erts_tse_fetch(); + callbacks.arg = (void *) esdp->ssi; + callbacks.wakeup = thr_prgr_wakeup; + callbacks.prepare_wait = NULL; + callbacks.wait = NULL; + callbacks.finalize_wait = NULL; + + erts_thr_progress_register_unmanaged_thread(&callbacks); +#ifdef ERTS_ENABLE_LOCK_CHECK + { + char buf[31]; + erts_snprintf(&buf[0], 31, "dirty io scheduler %beu", no); + erts_lc_set_thread_name(&buf[0]); + } +#endif + erts_tsd_set(sched_data_key, vesdp); +#if ERTS_USE_ASYNC_READY_Q + esdp->aux_work_data.async_ready.queue = NULL; +#endif + + erts_proc_lock_prepare_proc_lock_waiter(); + +#ifdef HIPE + hipe_thread_signal_init(); +#endif + erts_thread_init_float(); + + erts_smp_mtx_lock(&schdlr_sspnd.mtx); + ASSERT(erts_smp_atomic32_read_nob(&schdlr_sspnd.dirty_io_changing) + & ERTS_SCHDLR_SSPND_CHNG_ONLN); + + if (--schdlr_sspnd.dirty_io_curr_online == schdlr_sspnd.dirty_io_wait_curr_online) { + erts_smp_atomic32_read_band_nob(&schdlr_sspnd.dirty_io_changing, + ~ERTS_SCHDLR_SSPND_CHNG_ONLN); + if (no != 1) + erts_smp_cnd_broadcast(&schdlr_sspnd.cnd); + } + + if (no == 1) { + while (schdlr_sspnd.dirty_io_curr_online != schdlr_sspnd.dirty_io_wait_curr_online) + erts_smp_cnd_wait(&schdlr_sspnd.cnd, &schdlr_sspnd.mtx); + ERTS_SCHDLR_SSPND_DIRTY_IO_CHNG_SET(0, ERTS_SCHDLR_SSPND_CHNG_WAITER); + } + erts_smp_mtx_unlock(&schdlr_sspnd.mtx); + + process_main(); + /* No schedulers should *ever* terminate */ + erl_exit(ERTS_ABORT_EXIT, + "Dirty I/O scheduler thread number %beu terminated\n", + no); + return NULL; +} +#endif +#endif + static ethr_tid aux_tid; void erts_start_schedulers(void) { int res = 0; - Uint actual = 0; + Uint actual; Uint wanted = erts_no_schedulers; Uint wanted_no_schedulers = erts_no_schedulers; ethr_thr_opts opts = ETHR_THR_OPTS_DEFAULT_INITER; opts.detached = 1; + +#ifdef ETHR_HAVE_THREAD_NAMES + opts.name = malloc(80); + if (!opts.name) { + ERTS_INTERNAL_ERROR("malloc failed to allocate memory!"); + } +#endif + +#ifdef ERTS_SMP + if (erts_runq_supervision_interval) { + opts.suggested_stack_size = 16; +#ifdef ETHR_HAVE_THREAD_NAMES + sprintf(opts.name, "runq_supervisor"); +#endif + erts_atomic_init_nob(&runq_supervisor_sleeping, 0); + if (0 != ethr_event_init(&runq_supervision_event)) + erl_exit(1, "Failed to create run-queue supervision event\n"); + if (0 != ethr_thr_create(&runq_supervisor_tid, + runq_supervisor, + NULL, + &opts)) + erl_exit(1, "Failed to create run-queue supervision thread\n"); + + } +#endif + opts.suggested_stack_size = erts_sched_thread_suggested_stack_size; if (wanted < 1) @@ -5243,21 +7853,65 @@ erts_start_schedulers(void) res = ENOTSUP; } - while (actual < wanted) { + for (actual = 0; actual < wanted; actual++) { ErtsSchedulerData *esdp = ERTS_SCHEDULER_IX(actual); - actual++; - ASSERT(actual == esdp->no); - res = ethr_thr_create(&esdp->tid,sched_thread_func,(void*)esdp,&opts); + + ASSERT(actual == esdp->no - 1); + +#ifdef ETHR_HAVE_THREAD_NAMES + sprintf(opts.name, "scheduler_%d", actual + 1); +#endif + +#ifdef __OSE__ + /* This should be done in the bind strategy */ + opts.coreNo = (actual+1) % ose_num_cpus(); +#endif + + res = ethr_thr_create(&esdp->tid, sched_thread_func, (void*)esdp, &opts); + if (res != 0) { - actual--; - break; + break; } } - + erts_no_schedulers = actual; +#ifdef ERTS_DIRTY_SCHEDULERS +#ifdef ERTS_SMP + { + int ix; + for (ix = 0; ix < erts_no_dirty_cpu_schedulers; ix++) { + ErtsSchedulerData *esdp = ERTS_DIRTY_CPU_SCHEDULER_IX(ix); +#ifdef ETHR_HAVE_THREAD_NAMES + sprintf(opts.name,"dirty_cpu_scheduler_%d", ix + 1); +#endif + res = ethr_thr_create(&esdp->tid,sched_dirty_cpu_thread_func,(void*)esdp,&opts); + if (res != 0) + erl_exit(1, "Failed to create dirty cpu scheduler thread %d\n", ix); + } + for (ix = 0; ix < erts_no_dirty_io_schedulers; ix++) { + ErtsSchedulerData *esdp = ERTS_DIRTY_IO_SCHEDULER_IX(ix); +#ifdef ETHR_HAVE_THREAD_NAMES + sprintf(opts.name,"dirty_io_scheduler_%d", ix + 1); +#endif + res = ethr_thr_create(&esdp->tid,sched_dirty_io_thread_func,(void*)esdp,&opts); + if (res != 0) + erl_exit(1, "Failed to create dirty io scheduler thread %d\n", ix); + } + } +#endif +#endif + ERTS_THR_MEMORY_BARRIER; +#ifdef ETHR_HAVE_THREAD_NAMES + sprintf(opts.name, "aux"); +#endif + +#ifdef __OSE__ + opts.coreNo = 0; +#endif /* __OSE__ */ + res = ethr_thr_create(&aux_tid, aux_thread, NULL, &opts); if (res != 0) erl_exit(1, "Failed to create aux thread\n"); @@ -5277,6 +7931,10 @@ erts_start_schedulers(void) actual, actual == 1 ? " was" : "s were"); erts_send_error_to_logger_nogl(dsbufp); } + +#ifdef ETHR_HAVE_THREAD_NAMES + free(opts.name); +#endif } #endif /* ERTS_SMP */ @@ -5373,11 +8031,8 @@ handle_pend_sync_suspend(Process *suspendee, if (suspender) { ASSERT(is_nil(suspender->suspendee)); if (suspendee_alive) { - ErtsRunQueue *rq = erts_get_runq_proc(suspendee); - erts_smp_runq_lock(rq); - suspend_process(rq, suspendee); - erts_smp_runq_unlock(rq); - suspender->suspendee = suspendee->id; + erts_suspend(suspendee, suspendee_locks, NULL); + suspender->suspendee = suspendee->common.id; } /* suspender is suspended waiting for suspendee to suspend; resume suspender */ @@ -5398,7 +8053,7 @@ pid2proc_not_running(Process *c_p, ErtsProcLocks c_p_locks, ERTS_SMP_LC_ASSERT(c_p_locks & ERTS_PROC_LOCK_MAIN); ERTS_SMP_LC_ASSERT(pid_locks & (ERTS_PROC_LOCK_MAIN|ERTS_PROC_LOCK_STATUS)); - if (c_p->id == pid) + if (c_p->common.id == pid) return erts_pid2proc(c_p, c_p_locks, pid, pid_locks); if (c_p_locks & ERTS_PROC_LOCK_STATUS) @@ -5419,10 +8074,9 @@ pid2proc_not_running(Process *c_p, ErtsProcLocks c_p_locks, resume_process(rp); } else { - ErtsRunQueue *cp_rq, *rp_rq; rp = erts_pid2proc(c_p, c_p_locks|ERTS_PROC_LOCK_STATUS, - pid, ERTS_PROC_LOCK_STATUS); + pid, pid_locks|ERTS_PROC_LOCK_STATUS); if (!rp) { c_p->flags &= ~F_P2PNR_RESCHED; @@ -5431,58 +8085,37 @@ pid2proc_not_running(Process *c_p, ErtsProcLocks c_p_locks, ASSERT(!(c_p->flags & F_P2PNR_RESCHED)); - cp_rq = erts_get_runq_proc(c_p); - rp_rq = erts_get_runq_proc(rp); - erts_smp_runqs_lock(cp_rq, rp_rq); - if (rp->runq_flags & ERTS_PROC_RUNQ_FLG_RUNNING) { - running: - /* Phiu... */ - - /* - * If we got pending suspenders and suspend ourselves waiting - * to suspend another process we might deadlock. - * In this case we have to yield, be suspended by - * someone else and then do it all over again. - */ - if (!c_p->pending_suspenders) { - /* Mark rp pending for suspend by c_p */ - add_pend_suspend(rp, c_p->id, handle_pend_sync_suspend); - ASSERT(is_nil(c_p->suspendee)); - - /* Suspend c_p; when rp is suspended c_p will be resumed. */ - suspend_process(cp_rq, c_p); - c_p->flags |= F_P2PNR_RESCHED; - } - /* Yield (caller is assumed to yield immediately in bif). */ - erts_smp_proc_unlock(rp, ERTS_PROC_LOCK_STATUS); - rp = ERTS_PROC_LOCK_BUSY; + if (suspend) { + if (suspend_process(c_p, rp)) + goto done; } else { - ErtsProcLocks need_locks = pid_locks & ~ERTS_PROC_LOCK_STATUS; - if (need_locks && erts_smp_proc_trylock(rp, need_locks) == EBUSY) { - erts_smp_runqs_unlock(cp_rq, rp_rq); - erts_smp_proc_unlock(rp, ERTS_PROC_LOCK_STATUS); - rp = erts_pid2proc(c_p, c_p_locks|ERTS_PROC_LOCK_STATUS, - pid, pid_locks|ERTS_PROC_LOCK_STATUS); - if (!rp) - goto done; - /* run-queues may have changed */ - cp_rq = erts_get_runq_proc(c_p); - rp_rq = erts_get_runq_proc(rp); - erts_smp_runqs_lock(cp_rq, rp_rq); - if (rp->runq_flags & ERTS_PROC_RUNQ_FLG_RUNNING) { - /* Ahh... */ - erts_smp_proc_unlock(rp, - pid_locks & ~ERTS_PROC_LOCK_STATUS); - goto running; - } - } + if (!((ERTS_PSFLG_RUNNING|ERTS_PSFLG_RUNNING_SYS) + & erts_smp_atomic32_read_acqb(&rp->state))) + goto done; + + } + + /* Other process running */ + + /* + * If we got pending suspenders and suspend ourselves waiting + * to suspend another process we might deadlock. + * In this case we have to yield, be suspended by + * someone else and then do it all over again. + */ + if (!c_p->pending_suspenders) { + /* Mark rp pending for suspend by c_p */ + add_pend_suspend(rp, c_p->common.id, handle_pend_sync_suspend); + ASSERT(is_nil(c_p->suspendee)); - /* rp is not running and we got the locks we want... */ - if (suspend) - suspend_process(rp_rq, rp); + /* Suspend c_p; when rp is suspended c_p will be resumed. */ + suspend_process(c_p, c_p); + c_p->flags |= F_P2PNR_RESCHED; } - erts_smp_runqs_unlock(cp_rq, rp_rq); + /* Yield (caller is assumed to yield immediately in bif). */ + erts_smp_proc_unlock(rp, pid_locks|ERTS_PROC_LOCK_STATUS); + rp = ERTS_PROC_LOCK_BUSY; } done: @@ -5539,36 +8172,26 @@ erts_pid2proc_nropt(Process *c_p, ErtsProcLocks c_p_locks, return erts_pid2proc_not_running(c_p, c_p_locks, pid, pid_locks); } -static ERTS_INLINE void -do_bif_suspend_process(ErtsSuspendMonitor *smon, - Process *suspendee, - ErtsRunQueue *locked_runq) +static ERTS_INLINE int +do_bif_suspend_process(Process *c_p, + ErtsSuspendMonitor *smon, + Process *suspendee) { ASSERT(suspendee); - ASSERT(!suspendee->is_exiting); + ASSERT(!ERTS_PROC_IS_EXITING(suspendee)); ERTS_SMP_LC_ASSERT(ERTS_PROC_LOCK_STATUS & erts_proc_lc_my_proc_locks(suspendee)); if (smon) { if (!smon->active) { - ErtsRunQueue *rq; - - if (locked_runq) - rq = locked_runq; - else { - rq = erts_get_runq_proc(suspendee); - erts_smp_runq_lock(rq); - } - - suspend_process(rq, suspendee); - - if (!locked_runq) - erts_smp_runq_unlock(rq); + if (!suspend_process(c_p, suspendee)) + return 0; } smon->active += smon->pending; ASSERT(smon->active); smon->pending = 0; + return 1; } - + return 0; } static void @@ -5589,13 +8212,20 @@ handle_pend_bif_sync_suspend(Process *suspendee, ASSERT(is_nil(suspender->suspendee)); if (!suspendee_alive) erts_delete_suspend_monitor(&suspender->suspend_monitors, - suspendee->id); + suspendee->common.id); else { +#ifdef DEBUG + int res; +#endif ErtsSuspendMonitor *smon; smon = erts_lookup_suspend_monitor(suspender->suspend_monitors, - suspendee->id); - do_bif_suspend_process(smon, suspendee, NULL); - suspender->suspendee = suspendee->id; + suspendee->common.id); +#ifdef DEBUG + res = +#endif + do_bif_suspend_process(suspendee, smon, suspendee); + ASSERT(!smon || res != 0); + suspender->suspendee = suspendee->common.id; } /* suspender is suspended waiting for suspendee to suspend; resume suspender */ @@ -5624,12 +8254,19 @@ handle_pend_bif_async_suspend(Process *suspendee, ASSERT(is_nil(suspender->suspendee)); if (!suspendee_alive) erts_delete_suspend_monitor(&suspender->suspend_monitors, - suspendee->id); + suspendee->common.id); else { +#ifdef DEBUG + int res; +#endif ErtsSuspendMonitor *smon; smon = erts_lookup_suspend_monitor(suspender->suspend_monitors, - suspendee->id); - do_bif_suspend_process(smon, suspendee, NULL); + suspendee->common.id); +#ifdef DEBUG + res = +#endif + do_bif_suspend_process(suspendee, smon, suspendee); + ASSERT(!smon || res != 0); } erts_smp_proc_unlock(suspender, ERTS_PROC_LOCK_LINK); } @@ -5669,7 +8306,7 @@ suspend_process_2(BIF_ALIST_2) int unless_suspending = 0; - if (BIF_P->id == BIF_ARG_1) + if (BIF_P->common.id == BIF_ARG_1) goto badarg; /* We are not allowed to suspend ourselves */ if (is_not_nil(BIF_ARG_2)) { @@ -5714,7 +8351,8 @@ suspend_process_2(BIF_ALIST_2) /* This is really a piece of cake without SMP support... */ if (!smon->active) { - suspend_process(ERTS_RUNQ_IX(0), suspendee); + erts_smp_atomic32_read_bor_nob(&suspendee->state, ERTS_PSFLG_SUSPENDED); + suspend_process(BIF_P, suspendee); smon->active++; res = am_true; } @@ -5757,21 +8395,15 @@ suspend_process_2(BIF_ALIST_2) if (smon->pending && unless_suspending) res = am_false; else { - ErtsRunQueue *rq; if (smon->pending == INT_MAX) goto system_limit; smon->pending++; - rq = erts_get_runq_proc(suspendee); - erts_smp_runq_lock(rq); - if (suspendee->runq_flags & ERTS_PROC_RUNQ_FLG_RUNNING) + if (!do_bif_suspend_process(BIF_P, smon, suspendee)) add_pend_suspend(suspendee, - BIF_P->id, + BIF_P->common.id, handle_pend_bif_async_suspend); - else - do_bif_suspend_process(smon, suspendee, rq); - erts_smp_runq_unlock(rq); res = am_true; } @@ -5808,7 +8440,6 @@ suspend_process_2(BIF_ALIST_2) /* done */ } else { - ErtsRunQueue *cp_rq, *s_rq; /* We haven't got any active suspends on the suspendee */ /* @@ -5825,12 +8456,7 @@ suspend_process_2(BIF_ALIST_2) if (!unless_suspending || smon->pending == 0) smon->pending++; - cp_rq = erts_get_runq_proc(BIF_P); - s_rq = erts_get_runq_proc(suspendee); - erts_smp_runqs_lock(cp_rq, s_rq); - if (!(suspendee->runq_flags & ERTS_PROC_RUNQ_FLG_RUNNING)) { - do_bif_suspend_process(smon, suspendee, s_rq); - erts_smp_runqs_unlock(cp_rq, s_rq); + if (do_bif_suspend_process(BIF_P, smon, suspendee)) { res = (!unless_suspending || smon->active == 1 ? am_true : am_false); @@ -5839,7 +8465,7 @@ suspend_process_2(BIF_ALIST_2) else { /* Mark suspendee pending for suspend by BIF_P */ add_pend_suspend(suspendee, - BIF_P->id, + BIF_P->common.id, handle_pend_bif_sync_suspend); ASSERT(is_nil(BIF_P->suspendee)); @@ -5850,8 +8476,7 @@ suspend_process_2(BIF_ALIST_2) * This time with BIF_P->suspendee == BIF_ARG_1 (see * above). */ - suspend_process(cp_rq, BIF_P); - erts_smp_runqs_unlock(cp_rq, s_rq); + suspend_process(BIF_P, BIF_P); goto yield; } } @@ -5859,9 +8484,15 @@ suspend_process_2(BIF_ALIST_2) } #endif /* ERTS_SMP */ - - ASSERT(suspendee->status == P_SUSPENDED || (asynchronous && smon->pending)); - ASSERT(suspendee->status == P_SUSPENDED || !smon->active); +#ifdef DEBUG + { + erts_aint32_t state = erts_smp_atomic32_read_acqb(&suspendee->state); + ASSERT((state & ERTS_PSFLG_SUSPENDED) + || (asynchronous && smon->pending)); + ASSERT((state & ERTS_PSFLG_SUSPENDED) + || !smon->active); + } +#endif erts_smp_proc_unlock(suspendee, ERTS_PROC_LOCK_STATUS); erts_smp_proc_unlock(BIF_P, xlocks); @@ -5908,7 +8539,7 @@ resume_process_1(BIF_ALIST_1) Process *suspendee; int is_active; - if (BIF_P->id == BIF_ARG_1) + if (BIF_P->common.id == BIF_ARG_1) BIF_ERROR(BIF_P, BADARG); erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCK_LINK); @@ -5956,9 +8587,8 @@ resume_process_1(BIF_ALIST_1) if (!suspendee) goto no_suspendee; - ASSERT(suspendee->status == P_SUSPENDED - || (suspendee->status == P_GARBING - && suspendee->gcstatus == P_SUSPENDED)); + ASSERT(ERTS_PSFLG_SUSPENDED + & erts_smp_atomic32_read_nob(&suspendee->state)); resume_process(suspendee); erts_smp_proc_unlock(suspendee, ERTS_PROC_LOCK_STATUS); @@ -5987,449 +8617,46 @@ erts_run_queues_len(Uint *qlen) Uint len = 0; ERTS_ATOMIC_FOREACH_RUNQ(rq, { - if (qlen) - qlen[i++] = rq->procs.len; - len += rq->procs.len; + Sint pqlen = 0; + int pix; + for (pix = 0; pix < ERTS_NO_PROC_PRIO_LEVELS; pix++) + pqlen += RUNQ_READ_LEN(&rq->procs.prio_info[pix].len); + + if (pqlen < 0) + pqlen = 0; + if (qlen) + qlen[i++] = pqlen; + len += pqlen; } ); return len; } -#ifdef HARDDEBUG_RUNQS -static void -check_procs_runq(ErtsRunQueue *runq, Process *p_in_q, Process *p_not_in_q) -{ - int len[ERTS_NO_PROC_PRIO_LEVELS] = {0}; - int tot_len; - int prioq, prio; - int found_p_in_q; - Process *p, *prevp; - - found_p_in_q = 0; - for (prioq = 0; prioq < ERTS_NO_PROC_PRIO_LEVELS - 1; prioq++) { - prevp = NULL; - for (p = runq->procs.prio[prioq].first; p; p = p->next) { - ASSERT(p != p_not_in_q); - if (p == p_in_q) - found_p_in_q = 1; - switch (p->prio) { - case PRIORITY_MAX: - case PRIORITY_HIGH: - case PRIORITY_NORMAL: - ASSERT(prioq == p->prio); - break; - case PRIORITY_LOW: - ASSERT(prioq == PRIORITY_NORMAL); - break; - default: - ASSERT(!"Bad prio on process"); - } - len[p->prio]++; - ASSERT(prevp == p->prev); - if (p->prev) { - ASSERT(p->prev->next == p); - } - else { - ASSERT(runq->procs.prio[prioq].first == p); - } - if (p->next) { - ASSERT(p->next->prev == p); - } - else { - ASSERT(runq->procs.prio[prioq].last == p); - } - ASSERT(p->run_queue == runq); - prevp = p; - } - } - - ASSERT(!p_in_q || found_p_in_q); - - tot_len = 0; - for (prio = 0; prio < ERTS_NO_PROC_PRIO_LEVELS; prio++) { - ASSERT(len[prio] == runq->procs.prio_info[prio].len); - if (len[prio]) { - ASSERT(runq->flags & (1 << prio)); - } - else { - ASSERT(!(runq->flags & (1 << prio))); - } - tot_len += len[prio]; - } - ASSERT(runq->procs.len == tot_len); -} -# define ERTS_DBG_CHK_PROCS_RUNQ(RQ) check_procs_runq((RQ), NULL, NULL) -# define ERTS_DBG_CHK_PROCS_RUNQ_PROC(RQ, P) check_procs_runq((RQ), (P), NULL) -# define ERTS_DBG_CHK_PROCS_RUNQ_NOPROC(RQ, P) check_procs_runq((RQ), NULL, (P)) -#else -# define ERTS_DBG_CHK_PROCS_RUNQ(RQ) -# define ERTS_DBG_CHK_PROCS_RUNQ_PROC(RQ, P) -# define ERTS_DBG_CHK_PROCS_RUNQ_NOPROC(RQ, P) -#endif - - -static ERTS_INLINE void -enqueue_process(ErtsRunQueue *runq, Process *p) -{ - ErtsRunPrioQueue *rpq; - ErtsRunQueueInfo *rqi; - - ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(runq)); - ERTS_SMP_LC_ASSERT(ERTS_PROC_LOCK_STATUS & erts_proc_lc_my_proc_locks(p)); - - ASSERT(p->bound_runq || !(runq->flags & ERTS_RUNQ_FLG_SUSPENDED)); - - rqi = &runq->procs.prio_info[p->prio]; - rqi->len++; - if (rqi->max_len < rqi->len) - rqi->max_len = rqi->len; - - runq->procs.len++; - runq->len++; - if (runq->max_len < runq->len) - runq->max_len = runq->len; - - runq->flags |= (1 << p->prio); - - rpq = (p->prio == PRIORITY_LOW - ? &runq->procs.prio[PRIORITY_NORMAL] - : &runq->procs.prio[p->prio]); - - p->next = NULL; - p->prev = rpq->last; - if (rpq->last) - rpq->last->next = p; - else - rpq->first = p; - rpq->last = p; - - switch (p->status) { - case P_EXITING: - break; - case P_GARBING: - p->gcstatus = P_RUNABLE; - break; - default: - p->status = P_RUNABLE; - break; - } - -#ifdef ERTS_SMP - p->status_flags |= ERTS_PROC_SFLG_INRUNQ; -#endif - - ERTS_DBG_CHK_PROCS_RUNQ_PROC(runq, p); -} - - -static ERTS_INLINE int -dequeue_process(ErtsRunQueue *runq, Process *p) -{ - ErtsRunPrioQueue *rpq; - int res = 1; - - ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(runq)); - ERTS_SMP_LC_ASSERT(ERTS_PROC_LOCK_STATUS & erts_proc_lc_my_proc_locks(p)); - - ERTS_DBG_CHK_PROCS_RUNQ(runq); - - rpq = &runq->procs.prio[p->prio == PRIORITY_LOW ? PRIORITY_NORMAL : p->prio]; - if (p->prev) { - p->prev->next = p->next; - } - else if (rpq->first == p) { - rpq->first = p->next; - } - else { - res = 0; - } - if (p->next) { - p->next->prev = p->prev; - } - else if (rpq->last == p) { - rpq->last = p->prev; - } - else { - ASSERT(res == 0); - } - - if (res) { - - if (--runq->procs.prio_info[p->prio].len == 0) - runq->flags &= ~(1 << p->prio); - runq->procs.len--; - runq->len--; - -#ifdef ERTS_SMP - p->status_flags &= ~ERTS_PROC_SFLG_INRUNQ; -#endif - } - - ERTS_DBG_CHK_PROCS_RUNQ_NOPROC(runq, p); - return res; -} - -/* schedule a process */ -static ERTS_INLINE ErtsRunQueue * -internal_add_to_runq(ErtsRunQueue *runq, Process *p) -{ - Uint32 prev_status = p->status; - ErtsRunQueue *add_runq; -#ifdef ERTS_SMP - - ERTS_SMP_LC_ASSERT(ERTS_PROC_LOCK_STATUS & erts_proc_lc_my_proc_locks(p)); - ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(runq)); - - if (p->status_flags & ERTS_PROC_SFLG_INRUNQ) - return NULL; - else if (p->runq_flags & ERTS_PROC_RUNQ_FLG_RUNNING) { - ASSERT(ERTS_PROC_IS_EXITING(p) || p->rcount == 0); - ERTS_DBG_CHK_PROCS_RUNQ_NOPROC(runq, p); - p->status_flags |= ERTS_PROC_SFLG_PENDADD2SCHEDQ; - return NULL; - } - ASSERT(!p->scheduler_data); -#endif - - ERTS_DBG_CHK_PROCS_RUNQ_NOPROC(runq, p); -#ifndef ERTS_SMP - /* Never schedule a suspended process (ok in smp case) */ - ASSERT(ERTS_PROC_IS_EXITING(p) || p->rcount == 0); - add_runq = runq; -#else - ASSERT(!p->bound_runq || p->bound_runq == p->run_queue); - if (p->bound_runq) { - if (p->bound_runq == runq) - add_runq = runq; - else { - add_runq = p->bound_runq; - erts_smp_xrunq_lock(runq, add_runq); - } - } - else { - add_runq = erts_check_emigration_need(runq, p->prio); - if (!add_runq) - add_runq = runq; - else /* Process emigrated */ - p->run_queue = add_runq; - } -#endif - - /* Enqueue the process */ - enqueue_process(add_runq, p); - - if ((erts_system_profile_flags.runnable_procs) - && (prev_status == P_WAITING - || prev_status == P_SUSPENDED)) { - profile_runnable_proc(p, am_active); - } - - if (add_runq != runq) - erts_smp_runq_unlock(add_runq); - - return add_runq; -} - - -void -erts_add_to_runq(Process *p) -{ - ErtsRunQueue *notify_runq; - ErtsRunQueue *runq = erts_get_runq_proc(p); - erts_smp_runq_lock(runq); - notify_runq = internal_add_to_runq(runq, p); - erts_smp_runq_unlock(runq); - smp_notify_inc_runq(notify_runq); - -} - -/* Possibly remove a scheduled process we need to suspend */ - -static int -remove_proc_from_runq(ErtsRunQueue *rq, Process *p, int to_inactive) -{ - int res; - - ERTS_SMP_LC_ASSERT(ERTS_PROC_LOCK_STATUS & erts_proc_lc_my_proc_locks(p)); - -#ifdef ERTS_SMP - if (p->status_flags & ERTS_PROC_SFLG_PENDADD2SCHEDQ) { - p->status_flags &= ~ERTS_PROC_SFLG_PENDADD2SCHEDQ; - ASSERT(!remove_proc_from_runq(rq, p, 0)); - return 1; - } -#endif - - res = dequeue_process(rq, p); - - if (res && erts_system_profile_flags.runnable_procs && to_inactive) - profile_runnable_proc(p, am_inactive); - -#ifdef ERTS_SMP - ASSERT(!(p->status_flags & ERTS_PROC_SFLG_INRUNQ)); -#endif - - return res; -} - -#ifdef ERTS_SMP - -ErtsMigrateResult -erts_proc_migrate(Process *p, ErtsProcLocks *plcks, - ErtsRunQueue *from_rq, int *from_locked, - ErtsRunQueue *to_rq, int *to_locked) -{ - ERTS_SMP_LC_ASSERT(*plcks == erts_proc_lc_my_proc_locks(p)); - ERTS_SMP_LC_ASSERT((ERTS_PROC_LOCK_STATUS & *plcks) - || from_locked); - ERTS_SMP_LC_CHK_RUNQ_LOCK(from_rq, *from_locked); - ERTS_SMP_LC_CHK_RUNQ_LOCK(to_rq, *to_locked); - - /* - * If we have the lock on the run queue to migrate to, - * check that it isn't suspended. If it is suspended, - * we will refuse to migrate to it anyway. - */ - if (*to_locked && (to_rq->flags & ERTS_RUNQ_FLG_SUSPENDED)) - return ERTS_MIGRATE_FAILED_RUNQ_SUSPENDED; - - /* We need status lock on process and locks on both run queues */ - - if (!(ERTS_PROC_LOCK_STATUS & *plcks)) { - if (erts_smp_proc_trylock(p, ERTS_PROC_LOCK_STATUS) == EBUSY) { - ErtsProcLocks lcks = *plcks; - Eterm pid = p->id; - Process *proc = *plcks ? p : NULL; - - if (*from_locked) { - *from_locked = 0; - erts_smp_runq_unlock(from_rq); - } - if (*to_locked) { - *to_locked = 0; - erts_smp_runq_unlock(to_rq); - } - - proc = erts_pid2proc_opt(proc, - lcks, - pid, - lcks|ERTS_PROC_LOCK_STATUS, - ERTS_P2P_FLG_ALLOW_OTHER_X); - if (!proc) { - *plcks = 0; - return ERTS_MIGRATE_FAILED_NOT_IN_RUNQ; - } - ASSERT(proc == p); - } - *plcks |= ERTS_PROC_LOCK_STATUS; - } - - ASSERT(!p->bound_runq); - - ERTS_SMP_LC_CHK_RUNQ_LOCK(from_rq, *from_locked); - ERTS_SMP_LC_CHK_RUNQ_LOCK(to_rq, *to_locked); - - if (p->run_queue != from_rq) - return ERTS_MIGRATE_FAILED_RUNQ_CHANGED; - - if (!*from_locked || !*to_locked) { - if (from_rq < to_rq) { - if (!*to_locked) { - if (!*from_locked) - erts_smp_runq_lock(from_rq); - erts_smp_runq_lock(to_rq); - } - else if (erts_smp_runq_trylock(from_rq) == EBUSY) { - erts_smp_runq_unlock(to_rq); - erts_smp_runq_lock(from_rq); - erts_smp_runq_lock(to_rq); - } - } - else { - if (!*from_locked) { - if (!*to_locked) - erts_smp_runq_lock(to_rq); - erts_smp_runq_lock(from_rq); - } - else if (erts_smp_runq_trylock(to_rq) == EBUSY) { - erts_smp_runq_unlock(from_rq); - erts_smp_runq_lock(to_rq); - erts_smp_runq_lock(from_rq); - } - } - *to_locked = *from_locked = 1; - } - - ERTS_SMP_LC_CHK_RUNQ_LOCK(from_rq, *from_locked); - ERTS_SMP_LC_CHK_RUNQ_LOCK(to_rq, *to_locked); - - /* Ok we now got all locks we need; do it... */ - - /* Refuse to migrate to a suspended run queue */ - if (to_rq->flags & ERTS_RUNQ_FLG_SUSPENDED) - return ERTS_MIGRATE_FAILED_RUNQ_SUSPENDED; - - if ((p->runq_flags & ERTS_PROC_RUNQ_FLG_RUNNING) - || !(p->status_flags & ERTS_PROC_SFLG_INRUNQ)) - return ERTS_MIGRATE_FAILED_NOT_IN_RUNQ; - - dequeue_process(from_rq, p); - p->run_queue = to_rq; - enqueue_process(to_rq, p); - - return ERTS_MIGRATE_SUCCESS; -} -#endif /* ERTS_SMP */ - Eterm erts_process_status(Process *c_p, ErtsProcLocks c_p_locks, Process *rp, Eterm rpid) { Eterm res = am_undefined; - Process *p; - - if (rp) { - ERTS_SMP_LC_ASSERT(ERTS_PROC_LOCK_STATUS - & erts_proc_lc_my_proc_locks(rp)); - p = rp; - } - else { - p = erts_pid2proc_opt(c_p, c_p_locks, - rpid, ERTS_PROC_LOCK_STATUS, - ERTS_P2P_FLG_ALLOW_OTHER_X); - } + Process *p = rp ? rp : erts_proc_lookup_raw(rpid); if (p) { - switch (p->status) { - case P_RUNABLE: - res = am_runnable; - break; - case P_WAITING: - res = am_waiting; - break; - case P_RUNNING: - res = am_running; - break; - case P_EXITING: + erts_aint32_t state = erts_smp_atomic32_read_acqb(&p->state); + if (state & ERTS_PSFLG_FREE) + res = am_free; + else if (state & ERTS_PSFLG_EXITING) res = am_exiting; - break; - case P_GARBING: + else if (state & ERTS_PSFLG_GC) res = am_garbage_collecting; - break; - case P_SUSPENDED: + else if (state & ERTS_PSFLG_SUSPENDED) res = am_suspended; - break; - case P_FREE: /* We cannot look up a process in P_FREE... */ - default: /* Not a valid status... */ - erl_exit(1, "Bad status (%b32u) found for process %T\n", - p->status, p->id); - break; - } - -#ifdef ERTS_SMP - if (!rp && (p != c_p || !(ERTS_PROC_LOCK_STATUS & c_p_locks))) - erts_smp_proc_unlock(p, ERTS_PROC_LOCK_STATUS); + else if (state & ERTS_PSFLG_RUNNING) + res = am_running; + else if (state & ERTS_PSFLG_ACTIVE) + res = am_runnable; + else + res = am_waiting; } +#ifdef ERTS_SMP else { int i; ErtsSchedulerData *esdp; @@ -6437,50 +8664,53 @@ erts_process_status(Process *c_p, ErtsProcLocks c_p_locks, for (i = 0; i < erts_no_schedulers; i++) { esdp = ERTS_SCHEDULER_IX(i); erts_smp_runq_lock(esdp->run_queue); - if (esdp->free_process && esdp->free_process->id == rpid) { + if (esdp->free_process + && esdp->free_process->common.id == rpid) { res = am_free; erts_smp_runq_unlock(esdp->run_queue); break; } erts_smp_runq_unlock(esdp->run_queue); } - -#endif - } - +#endif return res; } /* -** Suspend a process +** Suspend a currently executing process ** If we are to suspend on a port the busy_port is the thing ** otherwise busy_port is NIL */ void -erts_suspend(Process* process, ErtsProcLocks process_locks, Port *busy_port) +erts_suspend(Process* c_p, ErtsProcLocks c_p_locks, Port *busy_port) { - ErtsRunQueue *rq; - - ERTS_SMP_LC_ASSERT(process_locks == erts_proc_lc_my_proc_locks(process)); - if (!(process_locks & ERTS_PROC_LOCK_STATUS)) - erts_smp_proc_lock(process, ERTS_PROC_LOCK_STATUS); - - rq = erts_get_runq_proc(process); + int suspend; - erts_smp_runq_lock(rq); - - suspend_process(rq, process); - - erts_smp_runq_unlock(rq); + ASSERT(c_p == erts_get_current_process()); + ERTS_SMP_LC_ASSERT(c_p_locks == erts_proc_lc_my_proc_locks(c_p)); + if (!(c_p_locks & ERTS_PROC_LOCK_STATUS)) + erts_smp_proc_lock(c_p, ERTS_PROC_LOCK_STATUS); if (busy_port) - erts_wake_process_later(busy_port, process); + suspend = erts_save_suspend_process_on_port(busy_port, c_p); + else + suspend = 1; - if (!(process_locks & ERTS_PROC_LOCK_STATUS)) - erts_smp_proc_unlock(process, ERTS_PROC_LOCK_STATUS); + if (suspend) { +#ifdef DEBUG + int res = +#endif + suspend_process(c_p, c_p); + ASSERT(res); + } + + if (!(c_p_locks & ERTS_PROC_LOCK_STATUS)) + erts_smp_proc_unlock(c_p, ERTS_PROC_LOCK_STATUS); + if (suspend && busy_port && erts_system_monitor_flags.busy_port) + monitor_generic(c_p, am_busy_port, busy_port->common.id); } void @@ -6495,16 +8725,19 @@ erts_resume(Process* process, ErtsProcLocks process_locks) } int -erts_resume_processes(ErtsProcList *plp) +erts_resume_processes(ErtsProcList *list) { + /* 'list' is expected to have been fetched (i.e. not a ring anymore) */ int nresumed = 0; + ErtsProcList *plp = list; + while (plp) { Process *proc; ErtsProcList *fplp; ASSERT(is_internal_pid(plp->pid)); proc = erts_pid2proc(NULL, 0, plp->pid, ERTS_PROC_LOCK_STATUS); if (proc) { - if (proclist_same(plp, proc)) { + if (erts_proclist_same(plp, proc)) { resume_process(proc); nresumed++; } @@ -6520,57 +8753,104 @@ erts_resume_processes(ErtsProcList *plp) Eterm erts_get_process_priority(Process *p) { - ErtsRunQueue *rq; - Eterm value; - ERTS_SMP_LC_ASSERT(ERTS_PROC_LOCK_STATUS & erts_proc_lc_my_proc_locks(p)); - rq = erts_get_runq_proc(p); - erts_smp_runq_lock(rq); - switch(p->prio) { - case PRIORITY_MAX: value = am_max; break; - case PRIORITY_HIGH: value = am_high; break; - case PRIORITY_NORMAL: value = am_normal; break; - case PRIORITY_LOW: value = am_low; break; - default: ASSERT(0); value = am_undefined; break; + erts_aint32_t state = erts_smp_atomic32_read_nob(&p->state); + switch (ERTS_PSFLGS_GET_USR_PRIO(state)) { + case PRIORITY_MAX: return am_max; + case PRIORITY_HIGH: return am_high; + case PRIORITY_NORMAL: return am_normal; + case PRIORITY_LOW: return am_low; + default: ASSERT(0); return am_undefined; } - erts_smp_runq_unlock(rq); - return value; } Eterm -erts_set_process_priority(Process *p, Eterm new_value) +erts_set_process_priority(Process *p, Eterm value) { - ErtsRunQueue *rq; - Eterm old_value; - ERTS_SMP_LC_ASSERT(ERTS_PROC_LOCK_STATUS & erts_proc_lc_my_proc_locks(p)); - rq = erts_get_runq_proc(p); -#ifdef ERTS_SMP - ASSERT(!(p->status_flags & ERTS_PROC_SFLG_INRUNQ)); -#endif - erts_smp_runq_lock(rq); - switch(p->prio) { - case PRIORITY_MAX: old_value = am_max; break; - case PRIORITY_HIGH: old_value = am_high; break; - case PRIORITY_NORMAL: old_value = am_normal; break; - case PRIORITY_LOW: old_value = am_low; break; - default: ASSERT(0); old_value = am_undefined; break; - } - switch (new_value) { - case am_max: p->prio = PRIORITY_MAX; break; - case am_high: p->prio = PRIORITY_HIGH; break; - case am_normal: p->prio = PRIORITY_NORMAL; break; - case am_low: p->prio = PRIORITY_LOW; break; - default: old_value = THE_NON_VALUE; break; + erts_aint32_t a, oprio, nprio; + + switch (value) { + case am_max: nprio = (erts_aint32_t) PRIORITY_MAX; break; + case am_high: nprio = (erts_aint32_t) PRIORITY_HIGH; break; + case am_normal: nprio = (erts_aint32_t) PRIORITY_NORMAL; break; + case am_low: nprio = (erts_aint32_t) PRIORITY_LOW; break; + default: return THE_NON_VALUE; break; } - erts_smp_runq_unlock(rq); - return old_value; -} -/* note that P_RUNNING is only set so that we don't try to remove -** running processes from the schedule queue if they exit - a running -** process not being in the schedule queue!! -** Schedule for up to INPUT_REDUCTIONS context switches, -** return 1 if more to do. -*/ + a = erts_smp_atomic32_read_nob(&p->state); + if (nprio == ERTS_PSFLGS_GET_USR_PRIO(a)) + oprio = nprio; + else { + int slocked = 0; + erts_aint32_t e, n, aprio; + + if (a & ERTS_PSFLG_ACTIVE_SYS) { + erts_smp_proc_lock(p, ERTS_PROC_LOCK_STATUS); + slocked = 1; + } + + do { + oprio = ERTS_PSFLGS_GET_USR_PRIO(a); + n = e = a; + + if (!(a & (ERTS_PSFLG_ACTIVE_SYS|ERTS_PSFLG_DELAYED_SYS))) + aprio = nprio; + else { + int max_qbit; + + if (!slocked) { + erts_smp_proc_lock(p, ERTS_PROC_LOCK_STATUS); + slocked = 1; + } + + max_qbit = 0; + if (a & ERTS_PSFLG_ACTIVE_SYS) + max_qbit |= p->sys_task_qs->qmask; + if (a & ERTS_PSFLG_DELAYED_SYS) { + ErtsProcSysTaskQs *qs; + qs = ERTS_PROC_GET_DELAYED_GC_TASK_QS(p); + ASSERT(qs); + max_qbit |= qs->qmask; + } + max_qbit &= -max_qbit; + switch (max_qbit) { + case MAX_BIT: + aprio = PRIORITY_MAX; + break; + case HIGH_BIT: + aprio = PRIORITY_HIGH; + break; + case NORMAL_BIT: + aprio = PRIORITY_NORMAL; + break; + case LOW_BIT: + aprio = PRIORITY_LOW; + break; + default: + ERTS_INTERNAL_ERROR("Invalid qmask"); + aprio = -1; + } + + if (aprio > nprio) /* low value -> high prio */ + aprio = nprio; + } + + n &= ~(ERTS_PSFLGS_USR_PRIO_MASK + | ERTS_PSFLGS_ACT_PRIO_MASK); + n |= ((nprio << ERTS_PSFLGS_USR_PRIO_OFFSET) + | (aprio << ERTS_PSFLGS_ACT_PRIO_OFFSET)); + + a = erts_smp_atomic32_cmpxchg_mb(&p->state, n, e); + } while (a != e); + } + + switch (oprio) { + case PRIORITY_MAX: return am_max; + case PRIORITY_HIGH: return am_high; + case PRIORITY_NORMAL: return am_normal; + case PRIORITY_LOW: return am_low; + default: ASSERT(0); return am_undefined; + } +} /* * schedule() is called from BEAM (process_main()) or HiPE @@ -6592,8 +8872,8 @@ erts_set_process_priority(Process *p, Eterm new_value) Process *schedule(Process *p, int calls) { + Process *proxy_p = NULL; ErtsRunQueue *rq; - ErtsRunPrioQueue *rpq; erts_aint_t dt; ErtsSchedulerData *esdp; int context_reds; @@ -6601,6 +8881,8 @@ Process *schedule(Process *p, int calls) int input_reductions; int actual_reds; int reds; + Uint32 flags; + erts_aint32_t state = 0; /* Supress warning... */ #ifdef USE_VM_PROBES if (p != NULL && DTRACE_ENABLED(process_unscheduled)) { @@ -6620,7 +8902,8 @@ Process *schedule(Process *p, int calls) input_reductions = INPUT_REDUCTIONS; } - ERTS_SMP_LC_ASSERT(!erts_thr_progress_is_blocking()); + ERTS_SMP_LC_ASSERT(ERTS_SCHEDULER_IS_DIRTY(erts_get_scheduler_data()) + || !erts_thr_progress_is_blocking()); /* * Clean up after the process being scheduled out. @@ -6633,6 +8916,8 @@ Process *schedule(Process *p, int calls) actual_reds = reds = 0; erts_smp_runq_lock(rq); } else { + sched_out_proc: + #ifdef ERTS_SMP ERTS_SMP_CHK_HAVE_ONLY_MAIN_PROC_LOCK(p); esdp = p->scheduler_data; @@ -6656,95 +8941,63 @@ Process *schedule(Process *p, int calls) erts_smp_proc_lock(p, ERTS_PROC_LOCK_STATUS); - if ((erts_system_profile_flags.runnable_procs) - && (p->status == P_WAITING)) { - profile_runnable_proc(p, am_inactive); - } + state = erts_smp_atomic32_read_acqb(&p->state); if (IS_TRACED(p)) { - if (IS_TRACED_FL(p, F_TRACE_CALLS) && p->status != P_FREE) { + if (IS_TRACED_FL(p, F_TRACE_CALLS) && !(state & ERTS_PSFLG_FREE)) erts_schedule_time_break(p, ERTS_BP_CALL_TIME_SCHEDULE_OUT); - } - switch (p->status) { - case P_EXITING: + if (state & (ERTS_PSFLG_FREE|ERTS_PSFLG_EXITING)) { if (ARE_TRACE_FLAGS_ON(p, F_TRACE_SCHED_EXIT)) - trace_sched(p, am_out_exiting); - break; - case P_FREE: - if (ARE_TRACE_FLAGS_ON(p, F_TRACE_SCHED_EXIT)) - trace_sched(p, am_out_exited); - break; - default: + trace_sched(p, ((state & ERTS_PSFLG_FREE) + ? am_out_exited + : am_out_exiting)); + } + else { if (ARE_TRACE_FLAGS_ON(p, F_TRACE_SCHED)) trace_sched(p, am_out); else if (ARE_TRACE_FLAGS_ON(p, F_TRACE_SCHED_PROCS)) trace_virtual_sched(p, am_out); - break; } - } - -#ifdef ERTS_SMP - if (ERTS_PROC_PENDING_EXIT(p)) { - erts_handle_pending_exit(p, - ERTS_PROC_LOCK_MAIN|ERTS_PROC_LOCK_STATUS); - p->status_flags |= ERTS_PROC_SFLG_PENDADD2SCHEDQ; } - if (p->pending_suspenders) { - handle_pending_suspend(p, - ERTS_PROC_LOCK_MAIN|ERTS_PROC_LOCK_STATUS); - ASSERT(!(p->status_flags & ERTS_PROC_SFLG_PENDADD2SCHEDQ) - || p->rcount == 0); - } +#ifdef ERTS_SMP + if (state & ERTS_PSFLG_PENDING_EXIT) + erts_handle_pending_exit(p, (ERTS_PROC_LOCK_MAIN + | ERTS_PROC_LOCK_STATUS)); + if (p->pending_suspenders) + handle_pending_suspend(p, (ERTS_PROC_LOCK_MAIN + | ERTS_PROC_LOCK_STATUS)); #endif esdp->reductions += reds; - erts_smp_runq_lock(rq); + schedule_out_process(rq, state, p, proxy_p); /* Returns with rq locked! */ + proxy_p = NULL; - ERTS_PROC_REDUCTIONS_EXECUTED(rq, p->prio, reds, actual_reds); + ERTS_PROC_REDUCTIONS_EXECUTED(rq, + (int) ERTS_PSFLGS_GET_USR_PRIO(state), + reds, + actual_reds); esdp->current_process = NULL; #ifdef ERTS_SMP p->scheduler_data = NULL; - p->runq_flags &= ~ERTS_PROC_RUNQ_FLG_RUNNING; - p->status_flags &= ~ERTS_PROC_SFLG_RUNNING; - - if (p->status_flags & ERTS_PROC_SFLG_PENDADD2SCHEDQ) { - ErtsRunQueue *notify_runq; - p->status_flags &= ~ERTS_PROC_SFLG_PENDADD2SCHEDQ; - notify_runq = internal_add_to_runq(rq, p); - if (notify_runq != rq) - smp_notify_inc_runq(notify_runq); - } #endif + erts_smp_proc_unlock(p, ERTS_PROC_LOCK_MAIN|ERTS_PROC_LOCK_STATUS); - if (p->status == P_FREE) { + if (state & ERTS_PSFLG_FREE) { #ifdef ERTS_SMP ASSERT(esdp->free_process == p); esdp->free_process = NULL; - erts_smp_proc_unlock(p, ERTS_PROC_LOCK_MAIN|ERTS_PROC_LOCK_STATUS); - erts_smp_proc_dec_refc(p); -#else - erts_free_proc(p); +#else + state = erts_smp_atomic32_read_nob(&p->state); + if (!(state & ERTS_PSFLG_IN_RUNQ)) + erts_free_proc(p); #endif - } else { - erts_smp_proc_unlock(p, ERTS_PROC_LOCK_MAIN|ERTS_PROC_LOCK_STATUS); } #ifdef ERTS_SMP - { - ErtsProcList *pnd_xtrs = rq->procs.pending_exiters; - rq->procs.pending_exiters = NULL; - - if (pnd_xtrs) { - erts_smp_runq_unlock(rq); - handle_pending_exiters(pnd_xtrs); - erts_smp_runq_lock(rq); - } - - } ASSERT(!esdp->free_process); #endif ASSERT(!esdp->current_process); @@ -6761,49 +9014,78 @@ Process *schedule(Process *p, int calls) } - ERTS_SMP_LC_ASSERT(!erts_thr_progress_is_blocking()); + ERTS_SMP_LC_ASSERT(ERTS_SCHEDULER_IS_DIRTY(esdp) + || !erts_thr_progress_is_blocking()); check_activities_to_run: { - #ifdef ERTS_SMP + ErtsMigrationPaths *mps; + ErtsMigrationPath *mp; + ErtsProcList *pnd_xtrs = rq->procs.pending_exiters; + if (erts_proclist_fetch(&pnd_xtrs, NULL)) { + rq->procs.pending_exiters = NULL; + erts_smp_runq_unlock(rq); + handle_pending_exiters(pnd_xtrs); + erts_smp_runq_lock(rq); + } - if (rq->check_balance_reds <= 0) - check_balance(rq); + if (!ERTS_SCHEDULER_IS_DIRTY(esdp)) { + if (rq->check_balance_reds <= 0) + check_balance(rq); - ERTS_SMP_LC_ASSERT(!erts_thr_progress_is_blocking()); - ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(rq)); + ERTS_SMP_LC_ASSERT(!erts_thr_progress_is_blocking()); - if (rq->flags & ERTS_RUNQ_FLGS_IMMIGRATE_QMASK) - immigrate(rq); + mps = erts_get_migration_paths_managed(); + mp = &mps->mpath[rq->ix]; - continue_check_activities_to_run: + if (mp->flags & ERTS_RUNQ_FLGS_IMMIGRATE_QMASK) + immigrate(rq, mp); + } - if (rq->flags & (ERTS_RUNQ_FLG_CHK_CPU_BIND - | ERTS_RUNQ_FLG_SUSPENDED)) { - if (rq->flags & ERTS_RUNQ_FLG_SUSPENDED) { - ASSERT(erts_smp_atomic32_read_nob(&esdp->ssi->flags) - & ERTS_SSI_FLG_SUSPENDED); + ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(rq)); + continue_check_activities_to_run: + flags = ERTS_RUNQ_FLGS_GET_NOB(rq); + continue_check_activities_to_run_known_flags: + ASSERT(ERTS_SCHEDULER_IS_DIRTY(esdp) + || flags & ERTS_RUNQ_FLG_NONEMPTY); + + if (flags & (ERTS_RUNQ_FLG_CHK_CPU_BIND|ERTS_RUNQ_FLG_SUSPENDED)) { + if (flags & ERTS_RUNQ_FLG_SUSPENDED) { suspend_scheduler(esdp); + flags = ERTS_RUNQ_FLGS_GET_NOB(rq); } - if (rq->flags & ERTS_RUNQ_FLG_CHK_CPU_BIND) + if (flags & ERTS_RUNQ_FLG_CHK_CPU_BIND) { + flags = ERTS_RUNQ_FLGS_UNSET(rq, ERTS_RUNQ_FLG_CHK_CPU_BIND); + flags &= ~ ERTS_RUNQ_FLG_CHK_CPU_BIND; erts_sched_check_cpu_bind(esdp); + } } +#ifdef ERTS_DIRTY_SCHEDULERS + else if (ERTS_SCHEDULER_IS_DIRTY(esdp) + && (erts_smp_atomic32_read_acqb(&esdp->ssi->flags) + & ERTS_SSI_FLG_SUSPENDED)) + suspend_scheduler(esdp); +#endif { erts_aint32_t aux_work; - int leader_update = erts_thr_progress_update(esdp); + int leader_update = ERTS_SCHEDULER_IS_DIRTY(esdp) ? 0 + : erts_thr_progress_update(esdp); aux_work = erts_atomic32_read_acqb(&esdp->ssi->aux_work); - if (aux_work | leader_update) { + if (aux_work | leader_update | ERTS_SCHED_FAIR) { erts_smp_runq_unlock(rq); if (leader_update) erts_thr_progress_leader_update(esdp); + else if (ERTS_SCHED_FAIR) + ERTS_SCHED_FAIR_YIELD(); if (aux_work) handle_aux_work(&esdp->aux_work_data, aux_work, 0); erts_smp_runq_lock(rq); } - } - ERTS_SMP_LC_ASSERT(!erts_thr_progress_is_blocking()); + ERTS_SMP_LC_ASSERT(ERTS_SCHEDULER_IS_DIRTY(esdp) + || !erts_thr_progress_is_blocking()); + } ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(rq)); #else /* ERTS_SMP */ @@ -6815,39 +9097,50 @@ Process *schedule(Process *p, int calls) } #endif /* ERTS_SMP */ - ASSERT(rq->len == rq->procs.len + rq->ports.info.len); + flags = ERTS_RUNQ_FLGS_GET_NOB(rq); - if ((rq->len == 0 && !rq->misc.start) - || (rq->halt_in_progress - && rq->ports.info.len == 0 && !rq->misc.start)) { +#ifdef ERTS_DIRTY_SCHEDULERS + if (ERTS_RUNQ_IX_IS_DIRTY(rq->ix) && rq->halt_in_progress) { + /* + * TODO: if halt in progress, need to put the dirty scheduler + * to sleep somewhere around here to prevent it from picking up + * new work + */ + } + else +#endif + if ((!(flags & ERTS_RUNQ_FLGS_QMASK) && !rq->misc.start) + || (rq->halt_in_progress && ERTS_EMPTY_RUNQ_PORTS(rq))) { + /* Prepare for scheduler wait */ #ifdef ERTS_SMP - ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(rq)); rq->wakeup_other = 0; rq->wakeup_other_reds = 0; - empty_runq(rq); + flags = ERTS_RUNQ_FLGS_GET_NOB(rq); + if (flags & ERTS_RUNQ_FLG_SUSPENDED) + goto continue_check_activities_to_run_known_flags; + if (flags & ERTS_RUNQ_FLG_INACTIVE) + empty_runq(rq); + else { + if (!ERTS_RUNQ_IX_IS_DIRTY(rq->ix) && try_steal_task(rq)) + goto continue_check_activities_to_run; + + empty_runq(rq); - if (rq->flags & ERTS_RUNQ_FLG_SUSPENDED) { - ASSERT(erts_smp_atomic32_read_nob(&esdp->ssi->flags) - & ERTS_SSI_FLG_SUSPENDED); - non_empty_runq(rq); - goto continue_check_activities_to_run; - } - else if (!(rq->flags & ERTS_RUNQ_FLG_INACTIVE)) { /* * Check for ERTS_RUNQ_FLG_SUSPENDED has to be done * after trying to steal a task. */ - if (try_steal_task(rq) - || (rq->flags & ERTS_RUNQ_FLG_SUSPENDED)) { + flags = ERTS_RUNQ_FLGS_GET_NOB(rq); + if (flags & ERTS_RUNQ_FLG_SUSPENDED) { non_empty_runq(rq); - goto continue_check_activities_to_run; + flags |= ERTS_RUNQ_FLG_NONEMPTY; + goto continue_check_activities_to_run_known_flags; } } - #endif scheduler_wait(&fcalls, esdp, rq); @@ -6858,7 +9151,9 @@ Process *schedule(Process *p, int calls) goto check_activities_to_run; } - else if (fcalls > input_reductions && prepare_for_sys_schedule()) { + else if (!ERTS_SCHEDULER_IS_DIRTY(esdp) && + (fcalls > input_reductions && + prepare_for_sys_schedule(esdp))) { /* * Schedule system-level activities. */ @@ -6875,6 +9170,7 @@ Process *schedule(Process *p, int calls) erl_sys_schedule(1); dt = erts_do_time_read_and_reset(); if (dt) erts_bump_timer(dt); + #ifdef ERTS_SMP erts_smp_runq_lock(rq); clear_sys_scheduling(); @@ -6888,14 +9184,14 @@ Process *schedule(Process *p, int calls) exec_misc_ops(rq); #ifdef ERTS_SMP - wakeup_other.check(rq); + wakeup_other.check(rq, flags); #endif /* * Find a new port to run. */ - if (rq->ports.info.len) { + if (RUNQ_READ_LEN(&rq->ports.info.len)) { int have_outstanding_io; have_outstanding_io = erts_port_task_execute(rq, &esdp->current_port); if ((have_outstanding_io && fcalls > 2*input_reductions) @@ -6922,181 +9218,963 @@ Process *schedule(Process *p, int calls) /* * Find a new process to run. */ - pick_next_process: + pick_next_process: { + erts_aint32_t psflg_band_mask; + int prio_q; + int qmask; + + flags = ERTS_RUNQ_FLGS_GET_NOB(rq); + qmask = (int) (flags & ERTS_RUNQ_FLGS_PROCS_QMASK); + switch (qmask & -qmask) { + case MAX_BIT: + prio_q = PRIORITY_MAX; + break; + case HIGH_BIT: + prio_q = PRIORITY_HIGH; + break; + case NORMAL_BIT: + case LOW_BIT: + prio_q = PRIORITY_NORMAL; + if (check_requeue_process(rq, PRIORITY_NORMAL)) + goto pick_next_process; + break; + case 0: /* No process at all */ + default: + ASSERT(qmask == 0); + goto check_activities_to_run; + } - ERTS_DBG_CHK_PROCS_RUNQ(rq); + BM_START_TIMER(system); - switch (rq->flags & ERTS_RUNQ_FLGS_PROCS_QMASK) { - case MAX_BIT: - case MAX_BIT|HIGH_BIT: - case MAX_BIT|NORMAL_BIT: - case MAX_BIT|LOW_BIT: - case MAX_BIT|HIGH_BIT|NORMAL_BIT: - case MAX_BIT|HIGH_BIT|LOW_BIT: - case MAX_BIT|NORMAL_BIT|LOW_BIT: - case MAX_BIT|HIGH_BIT|NORMAL_BIT|LOW_BIT: - rpq = &rq->procs.prio[PRIORITY_MAX]; - break; - case HIGH_BIT: - case HIGH_BIT|NORMAL_BIT: - case HIGH_BIT|LOW_BIT: - case HIGH_BIT|NORMAL_BIT|LOW_BIT: - rpq = &rq->procs.prio[PRIORITY_HIGH]; - break; - case NORMAL_BIT: - rpq = &rq->procs.prio[PRIORITY_NORMAL]; - break; - case LOW_BIT: - rpq = &rq->procs.prio[PRIORITY_NORMAL]; - break; - case NORMAL_BIT|LOW_BIT: - rpq = &rq->procs.prio[PRIORITY_NORMAL]; - ASSERT(rpq->first != NULL); - p = rpq->first; - if (p->prio == PRIORITY_LOW) { - if (p == rpq->last || p->skipped >= RESCHEDULE_LOW-1) - p->skipped = 0; - else { - /* skip it */ - p->skipped++; - rpq->first = p->next; - rpq->first->prev = NULL; - rpq->last->next = p; - p->prev = rpq->last; - p->next = NULL; - rpq->last = p; + /* + * Take the chosen process out of the queue. + */ + p = dequeue_process(rq, prio_q, &state); + + ASSERT(p); /* Wrong qmask in rq->flags? */ + + psflg_band_mask = ~(((erts_aint32_t) 1) << (ERTS_PSFLGS_GET_PRQ_PRIO(state) + + ERTS_PSFLGS_IN_PRQ_MASK_OFFSET)); + +#ifdef ERTS_DIRTY_SCHEDULERS + ASSERT((state & (ERTS_PSFLG_DIRTY_CPU_PROC|ERTS_PSFLG_DIRTY_IO_PROC)) != + (ERTS_PSFLG_DIRTY_CPU_PROC|ERTS_PSFLG_DIRTY_IO_PROC)); + if (state & (ERTS_PSFLG_DIRTY_CPU_PROC|ERTS_PSFLG_DIRTY_IO_PROC)) { + ASSERT((ERTS_SCHEDULER_IS_DIRTY_CPU(esdp) && (state & ERTS_PSFLG_DIRTY_CPU_PROC)) || + (ERTS_SCHEDULER_IS_DIRTY_IO(esdp) && (state & ERTS_PSFLG_DIRTY_IO_PROC))); + if (!ERTS_SCHEDULER_IS_DIRTY(esdp) && !(state & ERTS_PSFLG_ACTIVE_SYS)) goto pick_next_process; - } + state &= ~(ERTS_PSFLG_DIRTY_CPU_PROC_IN_Q|ERTS_PSFLG_DIRTY_IO_PROC_IN_Q); } - break; - case 0: /* No process at all */ - default: - ASSERT((rq->flags & ERTS_RUNQ_FLGS_PROCS_QMASK) == 0); - ASSERT(rq->procs.len == 0); - goto check_activities_to_run; - } +#endif - BM_START_TIMER(system); + if (!(state & ERTS_PSFLG_PROXY)) + psflg_band_mask &= ~ERTS_PSFLG_IN_RUNQ; + else { + proxy_p = p; + p = erts_proc_lookup_raw(proxy_p->common.id); + if (!p) { + free_proxy_proc(proxy_p); + proxy_p = NULL; + goto pick_next_process; + } + state = erts_smp_atomic32_read_nob(&p->state); + } - /* - * Take the chosen process out of the queue. - */ - ASSERT(rpq->first); /* Wrong qmask in rq->flags? */ - p = rpq->first; + while (1) { + erts_aint32_t exp, new, tmp; + tmp = new = exp = state; + new &= psflg_band_mask; + if (!(state & (ERTS_PSFLG_RUNNING + | ERTS_PSFLG_RUNNING_SYS))) { + tmp = state & (ERTS_PSFLG_SUSPENDED + | ERTS_PSFLG_PENDING_EXIT + | ERTS_PSFLG_ACTIVE_SYS); + if (tmp != ERTS_PSFLG_SUSPENDED) { + if (state & ERTS_PSFLG_ACTIVE_SYS) + new |= ERTS_PSFLG_RUNNING_SYS; + else + new |= ERTS_PSFLG_RUNNING; + } + } + state = erts_smp_atomic32_cmpxchg_relb(&p->state, new, exp); + if (state == exp) { + if ((state & (ERTS_PSFLG_RUNNING + | ERTS_PSFLG_RUNNING_SYS + | ERTS_PSFLG_FREE)) + || ((state & (ERTS_PSFLG_SUSPENDED + | ERTS_PSFLG_PENDING_EXIT + | ERTS_PSFLG_ACTIVE_SYS)) + == ERTS_PSFLG_SUSPENDED)) { + if (state & ERTS_PSFLG_FREE) { #ifdef ERTS_SMP - ERTS_SMP_LC_ASSERT(rq == p->run_queue); + erts_smp_proc_dec_refc(p); +#else + erts_free_proc(p); #endif - rpq->first = p->next; - if (!rpq->first) - rpq->last = NULL; - else - rpq->first->prev = NULL; - - p->next = p->prev = NULL; + } + if (proxy_p) { + free_proxy_proc(proxy_p); + proxy_p = NULL; + } + goto pick_next_process; + } + state = new; + break; + } + } - if (--rq->procs.prio_info[p->prio].len == 0) - rq->flags &= ~(1 << p->prio); - ASSERT(rq->procs.len > 0); - rq->procs.len--; - ASSERT(rq->len > 0); - rq->len--; + rq->procs.context_switches++; - { - Uint32 ee_flgs = (ERTS_RUNQ_FLG_EVACUATE(p->prio) - | ERTS_RUNQ_FLG_EMIGRATE(p->prio)); + esdp->current_process = p; - if ((rq->flags & (ERTS_RUNQ_FLG_SUSPENDED|ee_flgs)) == ee_flgs) - ERTS_UNSET_RUNQ_FLG_EVACUATE(rq->flags, p->prio); } - ERTS_DBG_CHK_PROCS_RUNQ_NOPROC(rq, p); - - rq->procs.context_switches++; - - esdp->current_process = p; - #ifdef ERTS_SMP - p->runq_flags |= ERTS_PROC_RUNQ_FLG_RUNNING; erts_smp_runq_unlock(rq); + if (flags & ERTS_RUNQ_FLG_PROTECTED) + (void) ERTS_RUNQ_FLGS_UNSET(rq, ERTS_RUNQ_FLG_PROTECTED); + ERTS_SMP_CHK_NO_PROC_LOCKS; erts_smp_proc_lock(p, ERTS_PROC_LOCK_MAIN|ERTS_PROC_LOCK_STATUS); if (erts_sched_stat.enabled) { + int prio; UWord old = ERTS_PROC_SCHED_ID(p, (ERTS_PROC_LOCK_MAIN | ERTS_PROC_LOCK_STATUS), (UWord) esdp->no); int migrated = old && old != esdp->no; +#ifdef ERTS_DIRTY_SCHEDULERS + ASSERT(!ERTS_SCHEDULER_IS_DIRTY(esdp)); +#endif + + prio = (int) ERTS_PSFLGS_GET_USR_PRIO(state); + erts_smp_spin_lock(&erts_sched_stat.lock); - erts_sched_stat.prio[p->prio].total_executed++; - erts_sched_stat.prio[p->prio].executed++; + erts_sched_stat.prio[prio].total_executed++; + erts_sched_stat.prio[prio].executed++; if (migrated) { - erts_sched_stat.prio[p->prio].total_migrated++; - erts_sched_stat.prio[p->prio].migrated++; + erts_sched_stat.prio[prio].total_migrated++; + erts_sched_stat.prio[prio].migrated++; } erts_smp_spin_unlock(&erts_sched_stat.lock); } - p->status_flags |= ERTS_PROC_SFLG_RUNNING; - p->status_flags &= ~ERTS_PROC_SFLG_INRUNQ; if (ERTS_PROC_PENDING_EXIT(p)) { erts_handle_pending_exit(p, ERTS_PROC_LOCK_MAIN|ERTS_PROC_LOCK_STATUS); + state = erts_smp_atomic32_read_nob(&p->state); } ASSERT(!p->scheduler_data); p->scheduler_data = esdp; - #endif - ASSERT(p->status != P_SUSPENDED); /* Never run a suspended process */ - reds = context_reds; if (IS_TRACED(p)) { - switch (p->status) { - case P_EXITING: + if (state & ERTS_PSFLG_EXITING) { if (ARE_TRACE_FLAGS_ON(p, F_TRACE_SCHED_EXIT)) trace_sched(p, am_in_exiting); - break; - default: + } + else { if (ARE_TRACE_FLAGS_ON(p, F_TRACE_SCHED)) trace_sched(p, am_in); else if (ARE_TRACE_FLAGS_ON(p, F_TRACE_SCHED_PROCS)) trace_virtual_sched(p, am_in); - break; } if (IS_TRACED_FL(p, F_TRACE_CALLS)) { erts_schedule_time_break(p, ERTS_BP_CALL_TIME_SCHEDULE_IN); } } - if (p->status != P_EXITING) - p->status = P_RUNNING; - erts_smp_proc_unlock(p, ERTS_PROC_LOCK_STATUS); #ifdef ERTS_SMP - if (is_not_nil(p->tracer_proc)) + if (is_not_nil(ERTS_TRACER_PROC(p))) erts_check_my_tracer_proc(p); #endif - if (!ERTS_PROC_IS_EXITING(p) + if (state & ERTS_PSFLG_RUNNING_SYS) { + reds -= execute_sys_tasks(p, &state, reds); + if (reds <= 0 +#ifdef ERTS_DIRTY_SCHEDULERS + || (state & (ERTS_PSFLG_DIRTY_CPU_PROC|ERTS_PSFLG_DIRTY_IO_PROC)) +#endif + ) { + p->fcalls = reds; + goto sched_out_proc; + } + + ASSERT(state & ERTS_PSFLG_RUNNING_SYS); + ASSERT(!(state & ERTS_PSFLG_RUNNING)); + + while (1) { + erts_aint32_t n, e; + + if (((state & (ERTS_PSFLG_SUSPENDED + | ERTS_PSFLG_ACTIVE)) != ERTS_PSFLG_ACTIVE) + && !(state & ERTS_PSFLG_EXITING)) + goto sched_out_proc; + + n = e = state; + n &= ~ERTS_PSFLG_RUNNING_SYS; + n |= ERTS_PSFLG_RUNNING; + + state = erts_smp_atomic32_cmpxchg_mb(&p->state, n, e); + if (state == e) { + state = n; + break; + } + + ASSERT(state & ERTS_PSFLG_RUNNING_SYS); + ASSERT(!(state & ERTS_PSFLG_RUNNING)); + } + } + + if (!(state & ERTS_PSFLG_EXITING) && ((FLAGS(p) & F_FORCE_GC) || (MSO(p).overhead > BIN_VHEAP_SZ(p)))) { reds -= erts_garbage_collect(p, 0, p->arg_reg, p->arity); - if (reds < 0) { - reds = 1; + if (reds <= 0) { + p->fcalls = reds; + goto sched_out_proc; } } + + if (proxy_p) { + free_proxy_proc(proxy_p); + proxy_p = NULL; + } p->fcalls = reds; ERTS_SMP_CHK_HAVE_ONLY_MAIN_PROC_LOCK(p); + + /* Never run a suspended process */ + ASSERT(!(ERTS_PSFLG_SUSPENDED & erts_smp_atomic32_read_nob(&p->state))); + return p; } } +static int +notify_sys_task_executed(Process *c_p, ErtsProcSysTask *st, Eterm st_result) +{ + Process *rp = erts_proc_lookup(st->requester); + if (rp) { + ErtsProcLocks rp_locks; + ErlOffHeap *ohp; + ErlHeapFragment* bp; + Eterm *hp, msg, req_id, result; + Uint st_result_sz, hsz; +#ifdef DEBUG + Eterm *hp_start; +#endif + + rp_locks = (c_p == rp) ? ERTS_PROC_LOCK_MAIN : 0; + + st_result_sz = is_immed(st_result) ? 0 : size_object(st_result); + hsz = st->req_id_sz + st_result_sz + 4 /* 3-tuple */; + + hp = erts_alloc_message_heap(hsz, + &bp, + &ohp, + rp, + &rp_locks); + +#ifdef DEBUG + hp_start = hp; +#endif + + req_id = st->req_id_sz == 0 ? st->req_id : copy_struct(st->req_id, + st->req_id_sz, + &hp, + ohp); + + result = st_result_sz == 0 ? st_result : copy_struct(st_result, + st_result_sz, + &hp, + ohp); + + ASSERT(is_immed(st->reply_tag)); + + msg = TUPLE3(hp, st->reply_tag, req_id, result); + +#ifdef DEBUG + hp += 4; + ASSERT(hp_start + hsz == hp); +#endif + + erts_queue_message(rp, + &rp_locks, + bp, + msg, + NIL +#ifdef USE_VM_PROBES + , NIL +#endif + ); + + if (c_p == rp) + rp_locks &= ~ERTS_PROC_LOCK_MAIN; + + if (rp_locks) + erts_smp_proc_unlock(rp, rp_locks); + } + + erts_cleanup_offheap(&st->off_heap); + + erts_free(ERTS_ALC_T_PROC_SYS_TSK, st); + + return rp ? 1 : 0; +} + +static ERTS_INLINE ErtsProcSysTask * +fetch_sys_task(Process *c_p, erts_aint32_t state, int *qmaskp, int *priop) +{ + ErtsProcSysTaskQs *unused_qs = NULL; + int qbit, qmask; + ErtsProcSysTask *st, **qp; + + *priop = -1; /* Shut up annoying erroneous warning */ + + erts_smp_proc_lock(c_p, ERTS_PROC_LOCK_STATUS); + + if (!c_p->sys_task_qs) { + qmask = 0; + st = NULL; + goto update_state; + } + + qmask = c_p->sys_task_qs->qmask; + + if ((state & (ERTS_PSFLG_ACTIVE + | ERTS_PSFLG_EXITING + | ERTS_PSFLG_SUSPENDED)) == ERTS_PSFLG_ACTIVE) { + /* No sys tasks if we got exclusively higher prio user work to do */ + st = NULL; + switch (ERTS_PSFLGS_GET_USR_PRIO(state)) { + case PRIORITY_MAX: + if (!(qmask & MAX_BIT)) + goto done; + break; + case PRIORITY_HIGH: + if (!(qmask & (MAX_BIT|HIGH_BIT))) + goto done; + break; + default: + break; + } + } + + qbit = qmask & -qmask; + switch (qbit) { + case MAX_BIT: + qp = &c_p->sys_task_qs->q[PRIORITY_MAX]; + *priop = PRIORITY_MAX; + break; + case HIGH_BIT: + qp = &c_p->sys_task_qs->q[PRIORITY_HIGH]; + *priop = PRIORITY_HIGH; + break; + case NORMAL_BIT: + if (!(qmask & PRIORITY_LOW) + || ++c_p->sys_task_qs->ncount <= RESCHEDULE_LOW) { + qp = &c_p->sys_task_qs->q[PRIORITY_NORMAL]; + *priop = PRIORITY_NORMAL; + break; + } + c_p->sys_task_qs->ncount = 0; + /* Fall through */ + case LOW_BIT: + qp = &c_p->sys_task_qs->q[PRIORITY_LOW]; + *priop = PRIORITY_LOW; + break; + default: + ERTS_INTERNAL_ERROR("Invalid qmask"); + } + + st = *qp; + ASSERT(st); + if (st->next != st) { + *qp = st->next; + st->next->prev = st->prev; + st->prev->next = st->next; + } + else { + erts_aint32_t a, e, n, st_prio, qmask2; + + *qp = NULL; + qmask &= ~qbit; + c_p->sys_task_qs->qmask = qmask; + + update_state: + + qmask2 = qmask; + + if (state & ERTS_PSFLG_DELAYED_SYS) { + ErtsProcSysTaskQs *qs = ERTS_PROC_GET_DELAYED_GC_TASK_QS(c_p); + ASSERT(qs); + qmask2 |= qs->qmask; + } + + switch (qmask2 & -qmask2) { + case MAX_BIT: + st_prio = PRIORITY_MAX; + break; + case HIGH_BIT: + st_prio = PRIORITY_HIGH; + break; + case NORMAL_BIT: + st_prio = PRIORITY_NORMAL; + break; + case LOW_BIT: + case 0: + st_prio = PRIORITY_LOW; + break; + default: + ERTS_INTERNAL_ERROR("Invalid qmask"); + } + + if (!qmask) { + unused_qs = c_p->sys_task_qs; + c_p->sys_task_qs = NULL; + } + + a = state; + do { + erts_aint32_t prio = ERTS_PSFLGS_GET_USR_PRIO(a); + + if (prio > st_prio) + prio = st_prio; + + n = e = a; + + n &= ~ERTS_PSFLGS_ACT_PRIO_MASK; + n |= (prio << ERTS_PSFLGS_ACT_PRIO_OFFSET); + + if (!qmask) + n &= ~ERTS_PSFLG_ACTIVE_SYS; + + if (a == n) + break; + a = erts_smp_atomic32_cmpxchg_nob(&c_p->state, n, e); + } while (a != e); + } + +done: + + erts_smp_proc_unlock(c_p, ERTS_PROC_LOCK_STATUS); + + if (unused_qs) + proc_sys_task_queues_free(unused_qs); + + *qmaskp = qmask; + + return st; +} + +static void save_gc_task(Process *c_p, ErtsProcSysTask *st, int prio); + +static int +execute_sys_tasks(Process *c_p, erts_aint32_t *statep, int in_reds) +{ + int garbage_collected = 0; + erts_aint32_t state = *statep; + int max_reds = in_reds; + int reds = 0; + int qmask = 0; + + ERTS_SMP_LC_ASSERT(erts_proc_lc_my_proc_locks(c_p) == ERTS_PROC_LOCK_MAIN); + + do { + ErtsProcSysTask *st; + int st_prio; + Eterm st_res; + + if (state & (ERTS_PSFLG_EXITING|ERTS_PSFLG_PENDING_EXIT)) { +#ifdef ERTS_SMP + if (state & ERTS_PSFLG_PENDING_EXIT) + erts_handle_pending_exit(c_p, ERTS_PROC_LOCK_MAIN); +#endif + ASSERT(ERTS_PROC_IS_EXITING(c_p)); + break; + } + + st = fetch_sys_task(c_p, state, &qmask, &st_prio); + if (!st) + break; + + switch (st->type) { + case ERTS_PSTT_GC: + if (c_p->flags & F_DISABLE_GC) { + save_gc_task(c_p, st, st_prio); + st = NULL; + reds++; + } + else { + if (!garbage_collected) { + FLAGS(c_p) |= F_NEED_FULLSWEEP; + reds += erts_garbage_collect(c_p, + 0, + c_p->arg_reg, + c_p->arity); + garbage_collected = 1; + } + st_res = am_true; + } + break; + case ERTS_PSTT_CPC: + st_res = erts_check_process_code(c_p, + st->arg[0], + st->arg[1] == am_true, + &reds); + if (is_non_value(st_res)) { + /* Needed gc, but gc was disabled */ + save_gc_task(c_p, st, st_prio); + st = NULL; + } + break; + default: + ERTS_INTERNAL_ERROR("Invalid process sys task type"); + st_res = am_false; + } + + if (st) + reds += notify_sys_task_executed(c_p, st, st_res); + + state = erts_smp_atomic32_read_acqb(&c_p->state); + } while (qmask && reds < max_reds); + + *statep = state; + + return reds; +} + +static int +cleanup_sys_tasks(Process *c_p, erts_aint32_t in_state, int in_reds) +{ + erts_aint32_t state = in_state; + int max_reds = in_reds; + int reds = 0; + int qmask = 0; + + ERTS_SMP_LC_ASSERT(erts_proc_lc_my_proc_locks(c_p) == ERTS_PROC_LOCK_MAIN); + + do { + ErtsProcSysTask *st; + Eterm st_res; + int st_prio; + + st = fetch_sys_task(c_p, state, &qmask, &st_prio); + if (!st) + break; + + switch (st->type) { + case ERTS_PSTT_GC: + st_res = am_false; + break; + case ERTS_PSTT_CPC: + st_res = am_false; + break; + default: + ERTS_INTERNAL_ERROR("Invalid process sys task type"); + st_res = am_false; + break; + } + + reds += notify_sys_task_executed(c_p, st, st_res); + + state = erts_smp_atomic32_read_acqb(&c_p->state); + } while (qmask && reds < max_reds); + + return reds; +} + +BIF_RETTYPE +erts_internal_request_system_task_3(BIF_ALIST_3) +{ + Process *rp = erts_proc_lookup(BIF_ARG_1); + ErtsProcSysTaskQs *stqs, *free_stqs = NULL; + ErtsProcSysTask *st = NULL; + erts_aint32_t prio, rp_state; + int rp_locked; + Eterm noproc_res, req_type; + + if (!rp && !is_internal_pid(BIF_ARG_1)) { + if (!is_external_pid(BIF_ARG_1)) + goto badarg; + if (external_pid_dist_entry(BIF_ARG_1) != erts_this_dist_entry) + goto badarg; + } + + switch (BIF_ARG_2) { + case am_max: prio = PRIORITY_MAX; break; + case am_high: prio = PRIORITY_HIGH; break; + case am_normal: prio = PRIORITY_NORMAL; break; + case am_low: prio = PRIORITY_LOW; break; + default: goto badarg; + } + + if (is_not_tuple(BIF_ARG_3)) + goto badarg; + else { + int i; + Eterm *tp = tuple_val(BIF_ARG_3); + Uint arity = arityval(*tp); + Eterm req_id; + Uint req_id_sz; + Eterm arg[ERTS_MAX_PROC_SYS_TASK_ARGS]; + Uint arg_sz[ERTS_MAX_PROC_SYS_TASK_ARGS]; + Uint tot_sz; + Eterm *hp; + + if (arity < 2) + goto badarg; + if (arity > 2 + ERTS_MAX_PROC_SYS_TASK_ARGS) + goto badarg; + req_type = tp[1]; + req_id = tp[2]; + req_id_sz = is_immed(req_id) ? req_id : size_object(req_id); + tot_sz = req_id_sz; + for (i = 0; i < ERTS_MAX_PROC_SYS_TASK_ARGS; i++) { + int tix = 3 + i; + if (tix > arity) { + arg[i] = THE_NON_VALUE; + arg_sz[i] = 0; + } + else { + arg[i] = tp[tix]; + if (is_immed(arg[i])) + arg_sz[i] = 0; + else { + arg_sz[i] = size_object(arg[i]); + tot_sz += arg_sz[i]; + } + } + } + st = erts_alloc(ERTS_ALC_T_PROC_SYS_TSK, + ERTS_PROC_SYS_TASK_SIZE(tot_sz)); + st->next = st->prev = st; /* Prep for empty prio queue */ + ERTS_INIT_OFF_HEAP(&st->off_heap); + hp = &st->heap[0]; + + st->requester = BIF_P->common.id; + st->reply_tag = req_type; + st->req_id_sz = req_id_sz; + st->req_id = req_id_sz == 0 ? req_id : copy_struct(req_id, + req_id_sz, + &hp, + &st->off_heap); + + for (i = 0; i < ERTS_MAX_PROC_SYS_TASK_ARGS; i++) + st->arg[i] = arg_sz[i] == 0 ? arg[i] : copy_struct(arg[i], + arg_sz[i], + &hp, + &st->off_heap); + ASSERT(&st->heap[0] + tot_sz == hp); + } + + switch (req_type) { + + case am_garbage_collect: + st->type = ERTS_PSTT_GC; + noproc_res = am_false; + if (!rp) + goto noproc; + break; + + case am_check_process_code: + if (is_not_atom(st->arg[0])) + goto badarg; + if (st->arg[1] != am_true && st->arg[1] != am_false) + goto badarg; + noproc_res = am_false; + st->type = ERTS_PSTT_CPC; + if (!rp) + goto noproc; + break; + + default: + goto badarg; + } + + rp_state = erts_smp_atomic32_read_nob(&rp->state); + + rp_locked = 0; + + free_stqs = NULL; + if (rp_state & ERTS_PSFLG_ACTIVE_SYS) + stqs = NULL; + else { + alloc_qs: + stqs = proc_sys_task_queues_alloc(); + stqs->qmask = 1 << prio; + stqs->ncount = 0; + stqs->q[PRIORITY_MAX] = NULL; + stqs->q[PRIORITY_HIGH] = NULL; + stqs->q[PRIORITY_NORMAL] = NULL; + stqs->q[PRIORITY_LOW] = NULL; + stqs->q[prio] = st; + } + + if (!rp_locked) { + rp_locked = 1; + erts_smp_proc_lock(rp, ERTS_PROC_LOCK_STATUS); + + rp_state = erts_smp_atomic32_read_nob(&rp->state); + if (rp_state & ERTS_PSFLG_EXITING) { + erts_smp_proc_unlock(rp, ERTS_PROC_LOCK_STATUS); + rp = NULL; + free_stqs = stqs; + goto noproc; + } + } + + if (!rp->sys_task_qs) { + if (stqs) + rp->sys_task_qs = stqs; + else + goto alloc_qs; + } + else { + if (stqs) + free_stqs = stqs; + stqs = rp->sys_task_qs; + if (!stqs->q[prio]) { + stqs->q[prio] = st; + stqs->qmask |= 1 << prio; + } + else { + st->next = stqs->q[prio]; + st->prev = stqs->q[prio]->prev; + st->next->prev = st; + st->prev->next = st; + ASSERT(stqs->qmask & (1 << prio)); + } + } + + if (ERTS_PSFLGS_GET_ACT_PRIO(rp_state) > prio) { + erts_aint32_t n, a, e; + /* Need to elevate actual prio */ + + a = rp_state; + do { + if (ERTS_PSFLGS_GET_ACT_PRIO(a) <= prio) { + n = a; + break; + } + n = e = a; + n &= ~ERTS_PSFLGS_ACT_PRIO_MASK; + n |= (prio << ERTS_PSFLGS_ACT_PRIO_OFFSET); + a = erts_smp_atomic32_cmpxchg_nob(&rp->state, n, e); + } while (a != e); + rp_state = n; + } + + erts_smp_proc_unlock(rp, ERTS_PROC_LOCK_STATUS); + + schedule_process_sys_task(rp, rp_state, NULL); + + if (free_stqs) + proc_sys_task_queues_free(free_stqs); + + BIF_RET(am_ok); + +noproc: + + notify_sys_task_executed(BIF_P, st, noproc_res); + if (free_stqs) + proc_sys_task_queues_free(free_stqs); + BIF_RET(am_ok); + +badarg: + + if (st) { + erts_cleanup_offheap(&st->off_heap); + erts_free(ERTS_ALC_T_PROC_SYS_TSK, st); + } + if (free_stqs) + proc_sys_task_queues_free(free_stqs); + BIF_ERROR(BIF_P, BADARG); +} + +static void +save_gc_task(Process *c_p, ErtsProcSysTask *st, int prio) +{ + erts_aint32_t state; + ErtsProcSysTaskQs *qs; + + ERTS_SMP_LC_ASSERT(ERTS_PROC_LOCK_MAIN == erts_proc_lc_my_proc_locks(c_p)); + + qs = ERTS_PROC_GET_DELAYED_GC_TASK_QS(c_p); + if (!qs) { + st->next = st->prev = st; + qs = proc_sys_task_queues_alloc(); + qs->qmask = 1 << prio; + qs->ncount = 0; + qs->q[PRIORITY_MAX] = NULL; + qs->q[PRIORITY_HIGH] = NULL; + qs->q[PRIORITY_NORMAL] = NULL; + qs->q[PRIORITY_LOW] = NULL; + qs->q[prio] = st; + (void) ERTS_PROC_SET_DELAYED_GC_TASK_QS(c_p, ERTS_PROC_LOCK_MAIN, qs); + } + else { + if (!qs->q[prio]) { + st->next = st->prev = st; + qs->q[prio] = st; + qs->qmask |= 1 << prio; + } + else { + st->next = qs->q[prio]; + st->prev = qs->q[prio]->prev; + st->next->prev = st; + st->prev->next = st; + ASSERT(qs->qmask & (1 << prio)); + } + } + + state = erts_smp_atomic32_read_nob(&c_p->state); + ASSERT((ERTS_PSFLG_RUNNING|ERTS_PSFLG_RUNNING_SYS) & state); + + while (!(state & ERTS_PSFLG_DELAYED_SYS) + || prio < ERTS_PSFLGS_GET_ACT_PRIO(state)) { + erts_aint32_t n, e; + + n = e = state; + n |= ERTS_PSFLG_DELAYED_SYS; + if (prio < ERTS_PSFLGS_GET_ACT_PRIO(state)) { + n &= ~ERTS_PSFLGS_ACT_PRIO_MASK; + n |= prio << ERTS_PSFLGS_ACT_PRIO_OFFSET; + } + state = erts_smp_atomic32_cmpxchg_relb(&c_p->state, n, e); + if (state == e) + break; + } +} + +int +erts_set_gc_state(Process *c_p, int enable) +{ + ErtsProcSysTaskQs *dgc_tsk_qs; + ASSERT(c_p == erts_get_current_process()); + ASSERT((ERTS_PSFLG_RUNNING|ERTS_PSFLG_RUNNING_SYS) + & erts_smp_atomic32_read_nob(&c_p->state)); + ERTS_SMP_LC_ASSERT(ERTS_PROC_LOCK_MAIN == erts_proc_lc_my_proc_locks(c_p)); + + if (!enable) { + c_p->flags |= F_DISABLE_GC; + return 0; + } + + c_p->flags &= ~F_DISABLE_GC; + + dgc_tsk_qs = ERTS_PROC_GET_DELAYED_GC_TASK_QS(c_p); + if (!dgc_tsk_qs) + return 0; + + /* Move delayed gc tasks into sys tasks queues. */ + + erts_smp_proc_lock(c_p, ERTS_PROC_LOCK_STATUS); + + if (!c_p->sys_task_qs) { + c_p->sys_task_qs = dgc_tsk_qs; + dgc_tsk_qs = NULL; + } + else { + ErtsProcSysTaskQs *stsk_qs; + int prio; + + /* + * We push delayed tasks to the front of the queue + * since they have already made it to the front + * once and then been delayed after that. + */ + + stsk_qs = c_p->sys_task_qs; + + while (dgc_tsk_qs->qmask) { + int qbit = dgc_tsk_qs->qmask & -dgc_tsk_qs->qmask; + dgc_tsk_qs->qmask &= ~qbit; + switch (qbit) { + case MAX_BIT: + prio = PRIORITY_MAX; + break; + case HIGH_BIT: + prio = PRIORITY_HIGH; + break; + case NORMAL_BIT: + prio = PRIORITY_NORMAL; + break; + case LOW_BIT: + prio = PRIORITY_LOW; + break; + default: + ERTS_INTERNAL_ERROR("Invalid qmask"); + prio = -1; + break; + } + + ASSERT(dgc_tsk_qs->q[prio]); + + if (!stsk_qs->q[prio]) { + stsk_qs->q[prio] = dgc_tsk_qs->q[prio]; + stsk_qs->qmask |= 1 << prio; + } + else { + ErtsProcSysTask *first1, *last1, *first2, *last2; + + ASSERT(stsk_qs->qmask & (1 << prio)); + first1 = dgc_tsk_qs->q[prio]; + last1 = first1->prev; + first2 = stsk_qs->q[prio]; + last2 = first1->prev; + + last1->next = first2; + first2->prev = last1; + + first1->prev = last2; + last2->next = first1; + + stsk_qs->q[prio] = first1; + } + + } + } + +#ifdef DEBUG + { + int qmask; + erts_aint32_t aprio, state = +#endif + + erts_smp_atomic32_read_bset_nob(&c_p->state, + (ERTS_PSFLG_DELAYED_SYS + | ERTS_PSFLG_ACTIVE_SYS), + ERTS_PSFLG_ACTIVE_SYS); + +#ifdef DEBUG + ASSERT(state & ERTS_PSFLG_DELAYED_SYS); + qmask = c_p->sys_task_qs->qmask; + aprio = ERTS_PSFLGS_GET_ACT_PRIO(state); + ASSERT(ERTS_PSFLGS_GET_USR_PRIO(state) >= aprio); + ASSERT((qmask & -qmask) >= (1 << aprio)); + } +#endif + + erts_smp_proc_unlock(c_p, ERTS_PROC_LOCK_STATUS); + + (void) ERTS_PROC_SET_DELAYED_GC_TASK_QS(c_p, ERTS_PROC_LOCK_MAIN, NULL); + + if (dgc_tsk_qs) + proc_sys_task_queues_free(dgc_tsk_qs); + + return 1; +} + void erts_sched_stat_modify(int what) { @@ -7109,7 +10187,7 @@ erts_sched_stat_modify(int what) break; case ERTS_SCHED_STAT_MODIFY_DISABLE: erts_smp_thr_progress_block(); - erts_sched_stat.enabled = 1; + erts_sched_stat.enabled = 0; erts_smp_thr_progress_unblock(); break; case ERTS_SCHED_STAT_MODIFY_CLEAR: @@ -7173,17 +10251,19 @@ erts_schedule_misc_op(void (*func)(void *), void *arg) ErtsSchedulerData *esdp = erts_get_scheduler_data(); ErtsRunQueue *rq = esdp ? esdp->run_queue : ERTS_RUNQ_IX(0); ErtsMiscOpList *molp = misc_op_list_alloc(); +#ifdef ERTS_SMP + ErtsMigrationPaths *mpaths = erts_get_migration_paths(); - erts_smp_runq_lock(rq); - - while (rq->misc.evac_runq) { - ErtsRunQueue *tmp_rq = rq->misc.evac_runq; - erts_smp_runq_unlock(rq); - rq = tmp_rq; - erts_smp_runq_lock(rq); + if (!mpaths) + rq = ERTS_RUNQ_IX(0); + else { + ErtsRunQueue *erq = mpaths->mpath[rq->ix].misc_evac_runq; + if (erq) + rq = erq; } +#endif - ASSERT(!(rq->flags & ERTS_RUNQ_FLG_SUSPENDED)); + erts_smp_runq_lock(rq); molp->next = NULL; molp->func = func; @@ -7193,7 +10273,13 @@ erts_schedule_misc_op(void (*func)(void *), void *arg) else rq->misc.start = molp; rq->misc.end = molp; + +#ifdef ERTS_SMP + non_empty_runq(rq); +#endif + erts_smp_runq_unlock(rq); + smp_notify_inc_runq(rq); } @@ -7277,156 +10363,76 @@ erts_get_exact_total_reductions(Process *c_p, Uint *redsp, Uint *diffp) erts_smp_proc_lock(c_p, ERTS_PROC_LOCK_MAIN); } -/* - * erts_test_next_pid() is only used for testing. - */ -Sint -erts_test_next_pid(int set, Uint next) +void +erts_free_proc(Process *p) { - Sint res; - Sint p_prev; - - - erts_smp_mtx_lock(&proc_tab_mtx); - - if (!set) { - res = p_next < 0 ? -1 : (p_serial << p_serial_shift | p_next); - } - else { - - p_serial = (Sint) ((next >> p_serial_shift) & p_serial_mask); - p_next = (Sint) (erts_process_tab_index_mask & next); - - if (p_next >= erts_max_processes) { - p_next = 0; - p_serial++; - p_serial &= p_serial_mask; - } - - p_prev = p_next; - - do { - if (!process_tab[p_next]) - break; - p_next++; - if(p_next >= erts_max_processes) { - p_next = 0; - p_serial++; - p_serial &= p_serial_mask; - } - } while (p_prev != p_next); - - res = process_tab[p_next] ? -1 : (p_serial << p_serial_shift | p_next); - - } +#ifdef ERTS_SMP + erts_proc_lock_fin(p); +#endif + erts_free(ERTS_ALC_T_PROC, (void *) p); +} - erts_smp_mtx_unlock(&proc_tab_mtx); +typedef struct { + Process *proc; + erts_aint32_t state; + ErtsRunQueue *run_queue; +} ErtsEarlyProcInit; - return res; +static void early_init_process_struct(void *varg, Eterm data) +{ + ErtsEarlyProcInit *arg = (ErtsEarlyProcInit *) varg; + Process *proc = arg->proc; -} + proc->common.id = make_internal_pid(data); + erts_smp_atomic32_init_relb(&proc->state, arg->state); -Uint erts_process_count(void) -{ - erts_aint32_t res = erts_smp_atomic32_read_nob(&process_count); - ASSERT(res >= 0); - return (Uint) res; -} +#ifdef ERTS_SMP + RUNQ_SET_RQ(&proc->run_queue, arg->run_queue); -void -erts_free_proc(Process *p) -{ -#if defined(ERTS_ENABLE_LOCK_COUNT) && defined(ERTS_SMP) - erts_lcnt_proc_lock_destroy(p); + erts_proc_lock_init(proc); /* All locks locked */ #endif - erts_free(ERTS_ALC_T_PROC, (void *) p); -} +} /* ** Allocate process and find out where to place next process. */ static Process* -alloc_process(void) +alloc_process(ErtsRunQueue *rq, erts_aint32_t state) { -#ifdef ERTS_SMP - erts_pix_lock_t *pix_lock; -#endif - Process* p; - int p_prev; - - erts_smp_mtx_lock(&proc_tab_mtx); - - if (p_next == -1) { - p = NULL; - goto error; /* Process table full! */ - } + ErtsEarlyProcInit init_arg; + Process *p; - p = (Process*) erts_alloc_fnf(ERTS_ALC_T_PROC, sizeof(Process)); + p = erts_alloc_fnf(ERTS_ALC_T_PROC, sizeof(Process)); if (!p) - goto error; /* ENOMEM */ - - p_last = p_next; + return NULL; - erts_get_emu_time(&p->started); + init_arg.proc = (Process *) p; + init_arg.run_queue = rq; + init_arg.state = state; -#ifdef ERTS_SMP - pix_lock = ERTS_PIX2PIXLOCK(p_next); - erts_pix_lock(pix_lock); -#endif - ASSERT(!process_tab[p_next]); + ASSERT(((char *) p) == ((char *) &p->common)); - process_tab[p_next] = p; - erts_smp_atomic32_inc_nob(&process_count); - p->id = make_internal_pid(p_serial << p_serial_shift | p_next); - if (p->id == ERTS_INVALID_PID) { - /* Do not use the invalid pid; change serial */ - p_serial++; - p_serial &= p_serial_mask; - p->id = make_internal_pid(p_serial << p_serial_shift | p_next); - ASSERT(p->id != ERTS_INVALID_PID); + if (!erts_ptab_new_element(&erts_proc, + &p->common, + (void *) &init_arg, + early_init_process_struct)) { + erts_free(ERTS_ALC_T_PROC, p); + return NULL; } - ASSERT(internal_pid_serial(p->id) <= (erts_use_r9_pids_ports - ? ERTS_MAX_PID_R9_SERIAL - : ERTS_MAX_PID_SERIAL)); - -#ifdef ERTS_SMP - erts_proc_lock_init(p); /* All locks locked */ - erts_pix_unlock(pix_lock); -#endif - p->rstatus = P_FREE; + ASSERT(internal_pid_serial(p->common.id) <= ERTS_MAX_PID_SERIAL); + + p->approx_started = erts_get_approx_time(); p->rcount = 0; + p->heap = NULL; - /* - * set p_next to the next available slot - */ - - p_prev = p_next; - - while (1) { - p_next++; - if(p_next >= erts_max_processes) { - p_serial++; - p_serial &= p_serial_mask; - p_next = 0; - } - - if (p_prev == p_next) { - p_next = -1; - break; /* Table full! */ - } - - if (!process_tab[p_next]) - break; /* found a free slot */ - } - - error: - erts_smp_mtx_unlock(&proc_tab_mtx); + ASSERT(p == (Process *) (erts_ptab_pix2intptr_nob( + &erts_proc, + internal_pid_index(p->common.id)))); return p; - } Eterm @@ -7436,13 +10442,15 @@ erl_create_process(Process* parent, /* Parent of process (default group leader). Eterm args, /* Arguments for function (must be well-formed list). */ ErlSpawnOpts* so) /* Options for spawn. */ { - ErtsRunQueue *rq, *notify_runq; + ErtsRunQueue *rq = NULL; Process *p; Sint arity; /* Number of arguments. */ Uint arg_size; /* Size of arguments. */ Uint sz; /* Needed words on heap. */ Uint heap_need; /* Size needed on heap. */ Eterm res = THE_NON_VALUE; + erts_aint32_t state = 0; + erts_aint32_t prio = (erts_aint32_t) PRIORITY_NORMAL; #ifdef ERTS_SMP erts_smp_proc_lock(parent, ERTS_PROC_LOCKS_ALL_MINOR); @@ -7452,12 +10460,29 @@ erl_create_process(Process* parent, /* Parent of process (default group leader). * Check for errors. */ - if (is_not_atom(mod) || is_not_atom(func) || ((arity = list_length(args)) < 0)) { + if (is_not_atom(mod) || is_not_atom(func) || ((arity = erts_list_length(args)) < 0)) { so->error_code = BADARG; goto error; } - p = alloc_process(); /* All proc locks are locked by this thread - on success */ + + if (so->flags & SPO_USE_ARGS) { + if (so->scheduler) { + int ix = so->scheduler-1; + ASSERT(0 <= ix && ix < erts_no_run_queues); + rq = ERTS_RUNQ_IX(ix); + state |= ERTS_PSFLG_BOUND; + } + prio = (erts_aint32_t) so->priority; + } + + state |= (((prio & ERTS_PSFLGS_PRIO_MASK) << ERTS_PSFLGS_ACT_PRIO_OFFSET) + | ((prio & ERTS_PSFLGS_PRIO_MASK) << ERTS_PSFLGS_USR_PRIO_OFFSET)); + + if (!rq) + rq = erts_get_runq_proc(parent); + + p = alloc_process(rq, state); /* All proc locks are locked by this thread + on success */ if (!p) { erts_send_error_to_logger_str(parent->group_leader, "Too many processes\n"); @@ -7477,22 +10502,16 @@ erl_create_process(Process* parent, /* Parent of process (default group leader). p->flags = erts_default_process_flags; - /* Scheduler queue mutex should be locked when changeing - * prio. In this case we don't have to lock it, since - * noone except us has access to the process. - */ if (so->flags & SPO_USE_ARGS) { p->min_heap_size = so->min_heap_size; p->min_vheap_size = so->min_vheap_size; - p->prio = so->priority; p->max_gen_gcs = so->max_gen_gcs; } else { p->min_heap_size = H_MIN_SIZE; p->min_vheap_size = BIN_VH_MIN_SIZE; - p->prio = PRIORITY_NORMAL; p->max_gen_gcs = (Uint16) erts_smp_atomic32_read_nob(&erts_max_gen_gcs); } - p->skipped = 0; + p->schedule_count = 0; ASSERT(p->min_heap_size == erts_next_heap_size(p->min_heap_size, 0)); p->initial[INITIAL_MOD] = mod; @@ -7520,7 +10539,6 @@ erl_create_process(Process* parent, /* Parent of process (default group leader). hipe_init_process_smp(&p->hipe_smp); #endif #endif - p->heap = (Eterm *) ERTS_HEAP_ALLOC(ERTS_ALC_T_HEAP, sizeof(Eterm)*sz); p->old_hend = p->old_htop = p->old_heap = NULL; p->high_water = p->heap; @@ -7535,6 +10553,8 @@ erl_create_process(Process* parent, /* Parent of process (default group leader). p->bin_old_vheap = 0; p->bin_vheap_mature = 0; + p->sys_task_qs = NULL; + /* No need to initialize p->fcalls. */ p->current = p->initial+INITIAL_MOD; @@ -7561,21 +10581,21 @@ erl_create_process(Process* parent, /* Parent of process (default group leader). p->reds = 0; #ifdef ERTS_SMP - p->u.ptimer = NULL; + p->common.u.alive.ptimer = NULL; #else - sys_memset(&p->u.tm, 0, sizeof(ErlTimer)); + sys_memset(&p->common.u.alive.tm, 0, sizeof(ErlTimer)); #endif - p->reg = NULL; - p->nlinks = NULL; - p->monitors = NULL; + p->common.u.alive.reg = NULL; + ERTS_P_LINKS(p) = NULL; + ERTS_P_MONITORS(p) = NULL; p->nodes_monitors = NULL; p->suspend_monitors = NULL; ASSERT(is_pid(parent->group_leader)); if (parent->group_leader == ERTS_INVALID_PID) - p->group_leader = p->id; + p->group_leader = p->common.id; else { /* Needs to be done after the heap has been set up */ p->group_leader = @@ -7584,7 +10604,7 @@ erl_create_process(Process* parent, /* Parent of process (default group leader). : STORE_NC(&p->htop, &p->off_heap, parent->group_leader); } - erts_get_default_tracing(&p->trace_flags, &p->tracer_proc); + erts_get_default_tracing(&ERTS_TRACE_FLAGS(p), &ERTS_TRACER_PROC(p)); p->msg.first = NULL; p->msg.last = &p->msg.first; @@ -7594,9 +10614,8 @@ erl_create_process(Process* parent, /* Parent of process (default group leader). p->msg_inq.first = NULL; p->msg_inq.last = &p->msg_inq.first; p->msg_inq.len = 0; - p->bound_runq = NULL; #endif - p->bif_timers = NULL; + p->u.bif_timers = NULL; p->mbuf = NULL; p->mbuf_sz = 0; p->psd = NULL; @@ -7608,7 +10627,9 @@ erl_create_process(Process* parent, /* Parent of process (default group leader). DT_UTAG(p) = NIL; DT_UTAG_FLAGS(p) = 0; #endif - p->parent = parent->id == ERTS_INVALID_PID ? NIL : parent->id; + p->parent = (parent->common.id == ERTS_INVALID_PID + ? NIL + : parent->common.id); INIT_HOLE_CHECK(p); #ifdef DEBUG @@ -7616,18 +10637,19 @@ erl_create_process(Process* parent, /* Parent of process (default group leader). #endif if (IS_TRACED(parent)) { - if (parent->trace_flags & F_TRACE_SOS) { - p->trace_flags |= (parent->trace_flags & TRACEE_FLAGS); - p->tracer_proc = parent->tracer_proc; + if (ERTS_TRACE_FLAGS(parent) & F_TRACE_SOS) { + ERTS_TRACE_FLAGS(p) |= (ERTS_TRACE_FLAGS(parent) & TRACEE_FLAGS); + ERTS_TRACER_PROC(p) = ERTS_TRACER_PROC(parent); } if (ARE_TRACE_FLAGS_ON(parent, F_TRACE_PROCS)) { - trace_proc_spawn(parent, p->id, mod, func, args); + trace_proc_spawn(parent, p->common.id, mod, func, args); } - if (parent->trace_flags & F_TRACE_SOS1) { /* Overrides TRACE_CHILDREN */ - p->trace_flags |= (parent->trace_flags & TRACEE_FLAGS); - p->tracer_proc = parent->tracer_proc; - p->trace_flags &= ~(F_TRACE_SOS1 | F_TRACE_SOS); - parent->trace_flags &= ~(F_TRACE_SOS1 | F_TRACE_SOS); + if (ERTS_TRACE_FLAGS(parent) & F_TRACE_SOS1) { + /* Overrides TRACE_CHILDREN */ + ERTS_TRACE_FLAGS(p) |= (ERTS_TRACE_FLAGS(parent) & TRACEE_FLAGS); + ERTS_TRACER_PROC(p) = ERTS_TRACER_PROC(parent); + ERTS_TRACE_FLAGS(p) &= ~(F_TRACE_SOS1 | F_TRACE_SOS); + ERTS_TRACE_FLAGS(parent) &= ~(F_TRACE_SOS1 | F_TRACE_SOS); } } @@ -7640,27 +10662,27 @@ erl_create_process(Process* parent, /* Parent of process (default group leader). int ret; #endif if (IS_TRACED_FL(parent, F_TRACE_PROCS)) { - trace_proc(parent, parent, am_link, p->id); + trace_proc(parent, parent, am_link, p->common.id); } #ifdef DEBUG - ret = erts_add_link(&(parent->nlinks), LINK_PID, p->id); + ret = erts_add_link(&ERTS_P_LINKS(parent), LINK_PID, p->common.id); ASSERT(ret == 0); - ret = erts_add_link(&(p->nlinks), LINK_PID, parent->id); + ret = erts_add_link(&ERTS_P_LINKS(p), LINK_PID, parent->common.id); ASSERT(ret == 0); #else - erts_add_link(&(parent->nlinks), LINK_PID, p->id); - erts_add_link(&(p->nlinks), LINK_PID, parent->id); + erts_add_link(&ERTS_P_LINKS(parent), LINK_PID, p->common.id); + erts_add_link(&ERTS_P_LINKS(p), LINK_PID, parent->common.id); #endif if (IS_TRACED(parent)) { - if (parent->trace_flags & (F_TRACE_SOL|F_TRACE_SOL1)) { - p->trace_flags |= (parent->trace_flags & TRACEE_FLAGS); - p->tracer_proc = parent->tracer_proc; /* maybe steal */ + if (ERTS_TRACE_FLAGS(parent) & (F_TRACE_SOL|F_TRACE_SOL1)) { + ERTS_TRACE_FLAGS(p) |= (ERTS_TRACE_FLAGS(parent)&TRACEE_FLAGS); + ERTS_TRACER_PROC(p) = ERTS_TRACER_PROC(parent); /*maybe steal*/ - if (parent->trace_flags & F_TRACE_SOL1) { /* maybe override */ - p ->trace_flags &= ~(F_TRACE_SOL1 | F_TRACE_SOL); - parent->trace_flags &= ~(F_TRACE_SOL1 | F_TRACE_SOL); + if (ERTS_TRACE_FLAGS(parent) & F_TRACE_SOL1) {/*maybe override*/ + ERTS_TRACE_FLAGS(p) &= ~(F_TRACE_SOL1 | F_TRACE_SOL); + ERTS_TRACE_FLAGS(parent) &= ~(F_TRACE_SOL1 | F_TRACE_SOL); } } } @@ -7673,16 +10695,13 @@ erl_create_process(Process* parent, /* Parent of process (default group leader). Eterm mref; mref = erts_make_ref(parent); - erts_add_monitor(&(parent->monitors), MON_ORIGIN, mref, p->id, NIL); - erts_add_monitor(&(p->monitors), MON_TARGET, mref, parent->id, NIL); + erts_add_monitor(&ERTS_P_MONITORS(parent), MON_ORIGIN, mref, p->common.id, NIL); + erts_add_monitor(&ERTS_P_MONITORS(p), MON_TARGET, mref, parent->common.id, NIL); so->mref = mref; } #ifdef ERTS_SMP p->scheduler_data = NULL; - p->is_exiting = 0; - p->status_flags = 0; - p->runq_flags = 0; p->suspendee = NIL; p->pending_suspenders = NULL; p->pending_exit.reason = THE_NON_VALUE; @@ -7693,36 +10712,17 @@ erl_create_process(Process* parent, /* Parent of process (default group leader). p->fp_exception = 0; #endif + erts_smp_proc_unlock(p, ERTS_PROC_LOCKS_ALL); + + res = p->common.id; + /* * Schedule process for execution. */ - if (!((so->flags & SPO_USE_ARGS) && so->scheduler)) - rq = erts_get_runq_proc(parent); - else { - int ix = so->scheduler-1; - ASSERT(0 <= ix && ix < erts_no_run_queues); - rq = ERTS_RUNQ_IX(ix); - p->bound_runq = rq; - } + schedule_process(p, state); - erts_smp_runq_lock(rq); - -#ifdef ERTS_SMP - p->run_queue = rq; -#endif - - p->status = P_WAITING; - notify_runq = internal_add_to_runq(rq, p); - - erts_smp_runq_unlock(rq); - - smp_notify_inc_runq(notify_runq); - - res = p->id; - erts_smp_proc_unlock(p, ERTS_PROC_LOCKS_ALL); - - VERBOSE(DEBUG_PROCESSES, ("Created a new process: %T\n",p->id)); + VERBOSE(DEBUG_PROCESSES, ("Created a new process: %T\n",p->common.id)); #ifdef USE_VM_PROBES if (DTRACE_ENABLED(process_spawn)) { @@ -7756,15 +10756,11 @@ void erts_init_empty_process(Process *p) p->max_gen_gcs = 0; p->min_heap_size = 0; p->min_vheap_size = 0; - p->status = P_RUNABLE; - p->gcstatus = P_RUNABLE; - p->rstatus = P_RUNABLE; p->rcount = 0; - p->id = ERTS_INVALID_PID; - p->prio = PRIORITY_NORMAL; + p->common.id = ERTS_INVALID_PID; p->reds = 0; - p->tracer_proc = NIL; - p->trace_flags = F_INITIAL_TRACE_FLAGS; + ERTS_TRACER_PROC(p) = NIL; + ERTS_TRACE_FLAGS(p) = F_INITIAL_TRACE_FLAGS; p->group_leader = ERTS_INVALID_PID; p->flags = 0; p->fvalue = NIL; @@ -7775,17 +10771,17 @@ void erts_init_empty_process(Process *p) p->bin_vheap_sz = BIN_VH_MIN_SIZE; p->bin_old_vheap_sz = BIN_VH_MIN_SIZE; p->bin_old_vheap = 0; + p->sys_task_qs = NULL; p->bin_vheap_mature = 0; #ifdef ERTS_SMP - p->u.ptimer = NULL; - p->bound_runq = NULL; + p->common.u.alive.ptimer = NULL; #else - memset(&(p->u.tm), 0, sizeof(ErlTimer)); + memset(&(p->common.u.alive.tm), 0, sizeof(ErlTimer)); #endif p->next = NULL; p->off_heap.first = NULL; p->off_heap.overhead = 0; - p->reg = NULL; + p->common.u.alive.reg = NULL; p->heap_sz = 0; p->high_water = NULL; p->old_hend = NULL; @@ -7794,15 +10790,15 @@ void erts_init_empty_process(Process *p) p->mbuf = NULL; p->mbuf_sz = 0; p->psd = NULL; - p->monitors = NULL; - p->nlinks = NULL; /* List of links */ + ERTS_P_MONITORS(p) = NULL; + ERTS_P_LINKS(p) = NULL; /* List of links */ p->nodes_monitors = NULL; p->suspend_monitors = NULL; p->msg.first = NULL; p->msg.last = &p->msg.first; p->msg.save = &p->msg.first; p->msg.len = 0; - p->bif_timers = NULL; + p->u.bif_timers = NULL; p->dictionary = NULL; p->seq_trace_clock = 0; p->seq_trace_lastcnt = 0; @@ -7829,8 +10825,8 @@ void erts_init_empty_process(Process *p) p->def_arg_reg[5] = 0; p->parent = NIL; - p->started.tv_sec = 0; - p->started.tv_usec = 0; + p->approx_started = 0; + p->common.u.alive.started_interval = 0; #ifdef HIPE hipe_init_process(&p->hipe); @@ -7844,12 +10840,10 @@ void erts_init_empty_process(Process *p) p->last_old_htop = NULL; #endif + erts_smp_atomic32_init_nob(&p->state, (erts_aint32_t) PRIORITY_NORMAL); #ifdef ERTS_SMP p->scheduler_data = NULL; - p->is_exiting = 0; - p->status_flags = 0; - p->runq_flags = 0; p->msg_inq.first = NULL; p->msg_inq.last = &p->msg_inq.first; p->msg_inq.len = 0; @@ -7859,7 +10853,7 @@ void erts_init_empty_process(Process *p) p->pending_exit.bp = NULL; erts_proc_lock_init(p); erts_smp_proc_unlock(p, ERTS_PROC_LOCKS_ALL); - p->run_queue = ERTS_RUNQ_IX(0); + RUNQ_SET_RQ(&p->run_queue, ERTS_RUNQ_IX(0)); #endif #if !defined(NO_FPE_SIGNALS) || defined(HIPE) @@ -7878,25 +10872,25 @@ erts_debug_verify_clean_empty_process(Process* p) ASSERT(p->stop == NULL); ASSERT(p->hend == NULL); ASSERT(p->heap == NULL); - ASSERT(p->id == ERTS_INVALID_PID); - ASSERT(p->tracer_proc == NIL); - ASSERT(p->trace_flags == F_INITIAL_TRACE_FLAGS); + ASSERT(p->common.id == ERTS_INVALID_PID); + ASSERT(ERTS_TRACER_PROC(p) == NIL); + ASSERT(ERTS_TRACE_FLAGS(p) == F_INITIAL_TRACE_FLAGS); ASSERT(p->group_leader == ERTS_INVALID_PID); ASSERT(p->next == NULL); - ASSERT(p->reg == NULL); + ASSERT(p->common.u.alive.reg == NULL); ASSERT(p->heap_sz == 0); ASSERT(p->high_water == NULL); ASSERT(p->old_hend == NULL); ASSERT(p->old_htop == NULL); ASSERT(p->old_heap == NULL); - ASSERT(p->monitors == NULL); - ASSERT(p->nlinks == NULL); + ASSERT(ERTS_P_MONITORS(p) == NULL); + ASSERT(ERTS_P_LINKS(p) == NULL); ASSERT(p->nodes_monitors == NULL); ASSERT(p->suspend_monitors == NULL); ASSERT(p->msg.first == NULL); ASSERT(p->msg.len == 0); - ASSERT(p->bif_timers == NULL); + ASSERT(p->u.bif_timers == NULL); ASSERT(p->dictionary == NULL); ASSERT(p->catches == 0); ASSERT(p->cp == NULL); @@ -7937,8 +10931,8 @@ erts_cleanup_empty_process(Process* p) free_message_buffer(p->mbuf); p->mbuf = NULL; } -#if defined(ERTS_ENABLE_LOCK_COUNT) && defined(ERTS_SMP) - erts_lcnt_proc_lock_destroy(p); +#ifdef ERTS_SMP + erts_proc_lock_fin(p); #endif #ifdef DEBUG erts_debug_verify_clean_empty_process(p); @@ -7953,7 +10947,7 @@ delete_process(Process* p) { ErlMessage* mp; - VERBOSE(DEBUG_PROCESSES, ("Removing process: %T\n",p->id)); + VERBOSE(DEBUG_PROCESSES, ("Removing process: %T\n",p->common.id)); /* Cleanup psd */ @@ -8027,8 +11021,6 @@ delete_process(Process* p) mp = next_mp; } - ASSERT(!p->monitors); - ASSERT(!p->nlinks); ASSERT(!p->nodes_monitors); ASSERT(!p->suspend_monitors); @@ -8036,25 +11028,21 @@ delete_process(Process* p) } static ERTS_INLINE void -set_proc_exiting(Process *p, Eterm reason, ErlHeapFragment *bp) +set_proc_exiting(Process *p, + erts_aint32_t in_state, + Eterm reason, + ErlHeapFragment *bp) { -#ifdef ERTS_SMP - erts_pix_lock_t *pix_lock = ERTS_PID2PIXLOCK(p->id); + erts_aint32_t state = in_state, enq_prio = -1; + int enqueue; ERTS_SMP_LC_ASSERT(erts_proc_lc_my_proc_locks(p) == ERTS_PROC_LOCKS_ALL); - /* - * You are required to have all proc locks and the pix lock when going - * to status P_EXITING. This makes it is enough to take any lock when - * looking up a process (pid2proc()) to prevent the looked up process - * from exiting until the lock has been released. - */ - erts_pix_lock(pix_lock); - p->is_exiting = 1; -#endif - p->status = P_EXITING; -#ifdef ERTS_SMP - erts_pix_unlock(pix_lock); -#endif + enqueue = change_proc_schedule_state(p, + ERTS_PSFLG_SUSPENDED|ERTS_PSFLG_PENDING_EXIT, + ERTS_PSFLG_EXITING|ERTS_PSFLG_ACTIVE, + &state, + &enq_prio); + p->fvalue = reason; if (bp) erts_link_mbuf_to_proc(p, bp); @@ -8067,8 +11055,38 @@ set_proc_exiting(Process *p, Eterm reason, ErlHeapFragment *bp) KILL_CATCHES(p); cancel_timer(p); p->i = (BeamInstr *) beam_exit; + + if (enqueue) + add2runq(enqueue > 0 ? p : make_proxy_proc(NULL, p, enq_prio), + state, + enq_prio); } +static ERTS_INLINE erts_aint32_t +set_proc_self_exiting(Process *c_p) +{ +#ifdef DEBUG + int enqueue; +#endif + erts_aint32_t state, enq_prio = -1; + + ERTS_SMP_LC_ASSERT(erts_proc_lc_my_proc_locks(c_p) == ERTS_PROC_LOCKS_ALL); + + state = erts_smp_atomic32_read_nob(&c_p->state); + ASSERT(state & (ERTS_PSFLG_RUNNING|ERTS_PSFLG_RUNNING_SYS)); + +#ifdef DEBUG + enqueue = +#endif + change_proc_schedule_state(c_p, + ERTS_PSFLG_SUSPENDED|ERTS_PSFLG_PENDING_EXIT, + ERTS_PSFLG_EXITING|ERTS_PSFLG_ACTIVE, + &state, + &enq_prio); + + ASSERT(!enqueue); + return state; +} #ifdef ERTS_SMP @@ -8079,8 +11097,8 @@ erts_handle_pending_exit(Process *c_p, ErtsProcLocks locks) ASSERT(is_value(c_p->pending_exit.reason)); ERTS_SMP_LC_ASSERT(erts_proc_lc_my_proc_locks(c_p) == locks); ERTS_SMP_LC_ASSERT(locks & ERTS_PROC_LOCK_MAIN); - ERTS_SMP_LC_ASSERT(c_p->status != P_EXITING); - ERTS_SMP_LC_ASSERT(c_p->status != P_FREE); + ERTS_SMP_LC_ASSERT(!((ERTS_PSFLG_EXITING|ERTS_PSFLG_FREE) + & erts_smp_atomic32_read_nob(&c_p->state))); /* Ensure that all locks on c_p are locked before proceeding... */ if (locks == ERTS_PROC_LOCKS_ALL) @@ -8093,7 +11111,10 @@ erts_handle_pending_exit(Process *c_p, ErtsProcLocks locks) } } - set_proc_exiting(c_p, c_p->pending_exit.reason, c_p->pending_exit.bp); + set_proc_exiting(c_p, + erts_smp_atomic32_read_acqb(&c_p->state), + c_p->pending_exit.reason, + c_p->pending_exit.bp); c_p->pending_exit.reason = THE_NON_VALUE; c_p->pending_exit.bp = NULL; @@ -8104,16 +11125,19 @@ erts_handle_pending_exit(Process *c_p, ErtsProcLocks locks) static void handle_pending_exiters(ErtsProcList *pnd_xtrs) { + /* 'list' is expected to have been fetched (i.e. not a ring anymore) */ ErtsProcList *plp = pnd_xtrs; - ErtsProcList *free_plp; + while (plp) { + ErtsProcList *free_plp; Process *p = erts_pid2proc(NULL, 0, plp->pid, ERTS_PROC_LOCKS_ALL); if (p) { - if (proclist_same(plp, p) - && !(p->status_flags & ERTS_PROC_SFLG_RUNNING)) { - ASSERT(p->status_flags & ERTS_PROC_SFLG_INRUNQ); - ASSERT(ERTS_PROC_PENDING_EXIT(p)); - erts_handle_pending_exit(p, ERTS_PROC_LOCKS_ALL); + if (erts_proclist_same(plp, p)) { + erts_aint32_t state = erts_smp_atomic32_read_acqb(&p->state); + if (!(state & (ERTS_PSFLG_RUNNING|ERTS_PSFLG_RUNNING_SYS))) { + ASSERT(state & ERTS_PSFLG_PENDING_EXIT); + erts_handle_pending_exit(p, ERTS_PROC_LOCKS_ALL); + } } erts_smp_proc_unlock(p, ERTS_PROC_LOCKS_ALL); } @@ -8137,11 +11161,17 @@ save_pending_exiter(Process *p) erts_smp_runq_lock(rq); - plp->next = rq->procs.pending_exiters; - rq->procs.pending_exiters = plp; + erts_proclist_store_last(&rq->procs.pending_exiters, plp); - erts_smp_runq_unlock(rq); + non_empty_runq(rq); + erts_smp_runq_unlock(rq); +#ifdef ERTS_DIRTY_SCHEDULERS + if (ERTS_RUNQ_IX_IS_DIRTY(rq->ix)) + wake_dirty_schedulers(rq, 0); + else +#endif + wake_scheduler(rq); } #endif @@ -8185,7 +11215,7 @@ send_exit_message(Process *to, ErtsProcLocks *to_locksp, hp = bp->mem; mess = copy_struct(exit_term, term_size, &hp, &bp->off_heap); /* the trace token must in this case be updated by the caller */ - seq_trace_output(token, mess, SEQ_TRACE_SEND, to->id, NULL); + seq_trace_output(token, mess, SEQ_TRACE_SEND, to->common.id, NULL); temp_token = copy_struct(token, sz_token, &hp, &bp->off_heap); erts_queue_message(to, to_locksp, bp, mess, temp_token #ifdef USE_VM_PROBES @@ -8203,7 +11233,7 @@ send_exit_message(Process *to, ErtsProcLocks *to_locksp, * SMP emulator). When the signal is received the receiver receives an * 'EXIT' message if it is trapping exits; otherwise, it will either * ignore the signal if the exit reason is normal, or go into an - * exiting state (status P_EXITING). When a process has gone into the + * exiting state (ERTS_PSFLG_EXITING). When a process has gone into the * exiting state it will not execute any more Erlang code, but it might * take a while before it actually exits. The exit signal is being * received when the 'EXIT' message is put in the message queue, the @@ -8276,6 +11306,7 @@ send_exit_signal(Process *c_p, /* current process if and only Uint32 flags /* flags */ ) { + erts_aint32_t state = erts_smp_atomic32_read_nob(&rp->state); Eterm rsn = reason == am_kill ? am_killed : reason; ERTS_SMP_LC_ASSERT(*rp_locks == erts_proc_lc_my_proc_locks(rp)); @@ -8292,12 +11323,12 @@ send_exit_signal(Process *c_p, /* current process if and only dtrace_pid_str(from, sender_str); dtrace_proc_str(rp, receiver_str); - erts_snprintf(reason_buf, sizeof(reason_buf) - 1, "%T", reason); + erts_snprintf(reason_buf, sizeof(DTRACE_CHARBUF_NAME(reason_buf)) - 1, "%T", reason); DTRACE3(process_exit_signal, sender_str, receiver_str, reason_buf); } #endif - if (ERTS_PROC_IS_TRAPPING_EXITS(rp) + if ((state & ERTS_PSFLG_TRAP_EXIT) && (reason != am_kill || (flags & ERTS_XSIG_FLG_IGN_KILL))) { if (is_not_nil(token) #ifdef USE_VM_PROBES @@ -8313,9 +11344,7 @@ send_exit_signal(Process *c_p, /* current process if and only } else if (reason != am_normal || (flags & ERTS_XSIG_FLG_NO_IGN_NORMAL)) { #ifdef ERTS_SMP - if (!ERTS_PROC_PENDING_EXIT(rp) && !rp->is_exiting) { - ASSERT(rp->status != P_EXITING); - ASSERT(rp->status != P_FREE); + if (!(state & (ERTS_PSFLG_EXITING|ERTS_PSFLG_PENDING_EXIT))) { ASSERT(!rp->pending_exit.bp); if (rp == c_p && (*rp_locks & ERTS_PROC_LOCK_MAIN)) { @@ -8331,9 +11360,9 @@ send_exit_signal(Process *c_p, /* current process if and only } *rp_locks = ERTS_PROC_LOCKS_ALL; } - set_proc_exiting(c_p, rsn, NULL); + set_proc_exiting(c_p, state, rsn, NULL); } - else if (!(rp->status_flags & ERTS_PROC_SFLG_RUNNING)) { + else if (!(state & (ERTS_PSFLG_RUNNING|ERTS_PSFLG_RUNNING_SYS))) { /* Process not running ... */ ErtsProcLocks need_locks = ~(*rp_locks) & ERTS_PROC_LOCKS_ALL; if (need_locks @@ -8350,6 +11379,7 @@ send_exit_signal(Process *c_p, /* current process if and only /* ...and we have all locks on it... */ *rp_locks = ERTS_PROC_LOCKS_ALL; set_proc_exiting(rp, + state, (is_immed(rsn) ? rsn : copy_object(rsn, rp)), @@ -8379,11 +11409,9 @@ send_exit_signal(Process *c_p, /* current process if and only &bp->off_heap); rp->pending_exit.bp = bp; } - ASSERT(ERTS_PROC_PENDING_EXIT(rp)); + erts_smp_atomic32_read_bor_relb(&rp->state, + ERTS_PSFLG_PENDING_EXIT); } - if (!(rp->status_flags - & (ERTS_PROC_SFLG_INRUNQ|ERTS_PROC_SFLG_RUNNING))) - erts_add_to_runq(rp); } /* else: * @@ -8395,17 +11423,14 @@ send_exit_signal(Process *c_p, /* current process if and only * exit or by itself before seeing the pending exit. */ #else /* !ERTS_SMP */ - if (c_p == rp) { - rp->status = P_EXITING; - c_p->fvalue = rsn; - } - else if (rp->status != P_EXITING) { /* No recursive process exits /PaN */ - Eterm old_status = rp->status; + erts_aint32_t state = erts_smp_atomic32_read_nob(&rp->state); + if (!(state & ERTS_PSFLG_EXITING)) { set_proc_exiting(rp, - is_immed(rsn) ? rsn : copy_object(rsn, rp), + state, + (is_immed(rsn) || c_p == rp + ? rsn + : copy_object(rsn, rp)), NULL); - if (old_status != P_RUNABLE && old_status != P_RUNNING) - erts_add_to_runq(rp); } #endif return -1; /* Receiver will exit */ @@ -8481,7 +11506,7 @@ static void doit_exit_monitor(ErtsMonitor *mon, void *vpcontext) if (!rp) { goto done; } - rmon = erts_remove_monitor(&(rp->monitors),mon->ref); + rmon = erts_remove_monitor(&ERTS_P_MONITORS(rp), mon->ref); erts_smp_proc_unlock(rp, ERTS_PROC_LOCK_LINK); if (rmon == NULL) { goto done; @@ -8516,7 +11541,7 @@ static void doit_exit_monitor(ErtsMonitor *mon, void *vpcontext) ASSERT(mon->type == MON_TARGET); ASSERT(is_pid(mon->pid) || is_internal_port(mon->pid)); if (is_internal_port(mon->pid)) { - Port *prt = erts_id2port(mon->pid, NULL, 0); + Port *prt = erts_id2port(mon->pid); if (prt == NULL) { goto done; } @@ -8532,13 +11557,13 @@ static void doit_exit_monitor(ErtsMonitor *mon, void *vpcontext) goto done; } UseTmpHeapNoproc(3); - rmon = erts_remove_monitor(&(rp->monitors),mon->ref); + rmon = erts_remove_monitor(&ERTS_P_MONITORS(rp), mon->ref); if (rmon) { erts_destroy_monitor(rmon); watched = (is_atom(mon->name) ? TUPLE2(lhp, mon->name, erts_this_dist_entry->sysname) - : pcontext->p->id); + : pcontext->p->common.id); erts_queue_monitor_message(rp, &rp_locks, mon->ref, am_process, watched, pcontext->reason); } @@ -8603,21 +11628,22 @@ static void doit_exit_link(ErtsLink *lnk, void *vpcontext) switch(lnk->type) { case LINK_PID: if(is_internal_port(item)) { - Port *prt = erts_id2port(item, NULL, 0); - if (prt) { - rlnk = erts_remove_link(&prt->nlinks, p->id); - if (rlnk) - erts_destroy_link(rlnk); - erts_do_exit_port(prt, p->id, reason); - erts_port_release(prt); - } + Port *prt = erts_port_lookup(item, ERTS_PORT_SFLGS_INVALID_LOOKUP); + if (prt) + erts_port_exit(NULL, + (ERTS_PORT_SIG_FLG_FORCE_SCHED + | ERTS_PORT_SIG_FLG_BROKEN_LINK), + prt, + p->common.id, + reason, + NULL); } else if(is_external_port(item)) { erts_dsprintf_buf_t *dsbufp = erts_create_logger_dsbuf(); erts_dsprintf(dsbufp, "Erroneous link between %T and external port %T " "found\n", - p->id, + p->common.id, item); erts_send_error_to_logger_nogl(dsbufp); ASSERT(0); /* It isn't possible to setup such a link... */ @@ -8627,14 +11653,14 @@ static void doit_exit_link(ErtsLink *lnk, void *vpcontext) | ERTS_PROC_LOCKS_XSIG_SEND); rp = erts_pid2proc(NULL, 0, item, rp_locks); if (rp) { - rlnk = erts_remove_link(&(rp->nlinks), p->id); + rlnk = erts_remove_link(&ERTS_P_LINKS(rp), p->common.id); /* If rlnk == NULL, we got unlinked while exiting, i.e., do nothing... */ if (rlnk) { int xres; erts_destroy_link(rlnk); xres = send_exit_signal(NULL, - p->id, + p->common.id, rp, &rp_locks, reason, @@ -8646,7 +11672,7 @@ static void doit_exit_link(ErtsLink *lnk, void *vpcontext) if (xres >= 0 && IS_TRACED_FL(rp, F_TRACE_PROCS)) { /* We didn't exit the process and it is traced */ if (IS_TRACED_FL(rp, F_TRACE_PROCS)) { - trace_proc(p, rp, am_getting_unlinked, p->id); + trace_proc(p, rp, am_getting_unlinked, p->common.id); } } } @@ -8660,12 +11686,12 @@ static void doit_exit_link(ErtsLink *lnk, void *vpcontext) ErtsDSigData dsd; int code; ErtsDistLinkData dld; - erts_remove_dist_link(&dld, p->id, item, dep); + erts_remove_dist_link(&dld, p->common.id, item, dep); erts_smp_proc_lock(p, ERTS_PROC_LOCK_MAIN); code = erts_dsig_prepare(&dsd, dep, p, ERTS_DSP_NO_LOCK, 0); if (code == ERTS_DSIG_PREP_CONNECTED) { - code = erts_dsig_send_exit_tt(&dsd, p->id, item, reason, - SEQ_TRACE_TOKEN(p)); + code = erts_dsig_send_exit_tt(&dsd, p->common.id, item, + reason, SEQ_TRACE_TOKEN(p)); ASSERT(code == ERTS_DSIG_SEND_OK); } erts_smp_proc_unlock(p, ERTS_PROC_LOCK_MAIN); @@ -8680,7 +11706,7 @@ static void doit_exit_link(ErtsLink *lnk, void *vpcontext) /* dist entries have node links in a separate structure to avoid confusion */ erts_smp_de_links_lock(dep); - rlnk = erts_remove_link(&(dep->node_links), p->id); + rlnk = erts_remove_link(&(dep->node_links), p->common.id); erts_smp_de_links_unlock(dep); if (rlnk) erts_destroy_link(rlnk); @@ -8708,22 +11734,11 @@ resume_suspend_monitor(ErtsSuspendMonitor *smon, void *vc_p) erts_destroy_suspend_monitor(smon); } -static void -continue_exit_process(Process *p -#ifdef ERTS_SMP - , erts_pix_lock_t *pix_lock -#endif - ); - /* this function fishishes a process and propagates exit messages - called by process_main when a process dies */ void erts_do_exit_process(Process* p, Eterm reason) { -#ifdef ERTS_SMP - erts_pix_lock_t *pix_lock = ERTS_PID2PIXLOCK(p->id); -#endif - p->arity = 0; /* No live registers */ p->fvalue = reason; @@ -8741,27 +11756,16 @@ erts_do_exit_process(Process* p, Eterm reason) #ifdef ERTS_SMP ERTS_SMP_CHK_HAVE_ONLY_MAIN_PROC_LOCK(p); /* By locking all locks (main lock is already locked) when going - to status P_EXITING, it is enough to take any lock when + to exiting state (ERTS_PSFLG_EXITING), it is enough to take any lock when looking up a process (erts_pid2proc()) to prevent the looked up process from exiting until the lock has been released. */ erts_smp_proc_lock(p, ERTS_PROC_LOCKS_ALL_MINOR); #endif - - if (erts_system_profile_flags.runnable_procs && (p->status != P_WAITING)) { - profile_runnable_proc(p, am_inactive); - } -#ifdef ERTS_SMP - erts_pix_lock(pix_lock); - p->is_exiting = 1; -#endif - - p->status = P_EXITING; - -#ifdef ERTS_SMP - erts_pix_unlock(pix_lock); - - if (ERTS_PROC_PENDING_EXIT(p)) { +#ifndef ERTS_SMP + set_proc_self_exiting(p); +#else + if (ERTS_PSFLG_PENDING_EXIT & set_proc_self_exiting(p)) { /* Process exited before pending exit was received... */ p->pending_exit.reason = THE_NON_VALUE; if (p->pending_exit.bp) { @@ -8783,46 +11787,30 @@ erts_do_exit_process(Process* p, Eterm reason) trace_proc(p, p, am_exit, reason); } - erts_trace_check_exiting(p->id); + erts_trace_check_exiting(p->common.id); - ASSERT((p->trace_flags & F_INITIAL_TRACE_FLAGS) == F_INITIAL_TRACE_FLAGS); + ASSERT((ERTS_TRACE_FLAGS(p) & F_INITIAL_TRACE_FLAGS) + == F_INITIAL_TRACE_FLAGS); cancel_timer(p); /* Always cancel timer just in case */ - /* - * The timer of this process can *not* be used anymore. The field used - * for the timer is now used for misc exiting data. - */ - p->u.exit_data = NULL; - - if (p->bif_timers) + if (p->u.bif_timers) erts_cancel_bif_timers(p, ERTS_PROC_LOCKS_ALL); erts_smp_proc_unlock(p, ERTS_PROC_LOCKS_ALL_MINOR); -#ifdef ERTS_SMP - continue_exit_process(p, pix_lock); -#else - continue_exit_process(p); -#endif -} + /* + * The p->u.bif_timers of this process can *not* be used anymore; + * will be overwritten by misc termination data. + */ + p->u.terminate = NULL; -void -erts_continue_exit_process(Process *c_p) -{ -#ifdef ERTS_SMP - continue_exit_process(c_p, ERTS_PID2PIXLOCK(c_p->id)); -#else - continue_exit_process(c_p); -#endif + + erts_continue_exit_process(p); } -static void -continue_exit_process(Process *p -#ifdef ERTS_SMP - , erts_pix_lock_t *pix_lock -#endif - ) +void +erts_continue_exit_process(Process *p) { ErtsLink* lnk; ErtsMonitor *mon; @@ -8831,6 +11819,7 @@ continue_exit_process(Process *p DistEntry *dep; struct saved_calls *scb; process_breakpoint_time_t *pbt; + erts_aint32_t state; #ifdef DEBUG int yield_allowed = 1; @@ -8838,11 +11827,7 @@ continue_exit_process(Process *p ERTS_SMP_LC_ASSERT(ERTS_PROC_LOCK_MAIN == erts_proc_lc_my_proc_locks(p)); -#ifdef DEBUG - erts_smp_proc_lock(p, ERTS_PROC_LOCK_STATUS); - ASSERT(p->status == P_EXITING); - erts_smp_proc_unlock(p, ERTS_PROC_LOCK_STATUS); -#endif + ASSERT(ERTS_PROC_IS_EXITING(p)); #ifdef ERTS_SMP if (p->flags & F_HAVE_BLCKD_MSCHED) { @@ -8871,6 +11856,13 @@ continue_exit_process(Process *p p->flags &= ~F_USING_DB; } + erts_set_gc_state(p, 1); + state = erts_smp_atomic32_read_acqb(&p->state); + if (state & ERTS_PSFLG_ACTIVE_SYS) { + if (cleanup_sys_tasks(p, state, CONTEXT_REDS) >= CONTEXT_REDS/2) + goto yield; + } + if (p->flags & F_USING_DDLL) { erts_ddll_proc_dead(p, ERTS_PROC_LOCK_MAIN); p->flags &= ~F_USING_DDLL; @@ -8893,9 +11885,9 @@ continue_exit_process(Process *p * The registered name *should* be the last "erlang resource" to * cleanup. */ - if (p->reg) { + if (p->common.u.alive.reg) { (void) erts_unregister_name(p, ERTS_PROC_LOCK_MAIN, NULL, THE_NON_VALUE); - ASSERT(!p->reg); + ASSERT(!p->common.u.alive.reg); } erts_smp_proc_lock(p, ERTS_PROC_LOCKS_ALL_MINOR); @@ -8909,49 +11901,33 @@ continue_exit_process(Process *p yield_allowed = 0; #endif + /* + * Note! The monitor and link fields will be overwritten + * by erts_ptab_delete_element() below. + */ + mon = ERTS_P_MONITORS(p); + lnk = ERTS_P_LINKS(p); + { - int pix; /* Do *not* use erts_get_runq_proc() */ ErtsRunQueue *rq; rq = erts_get_runq_current(ERTS_GET_SCHEDULER_DATA_FROM_PROC(p)); - ASSERT(internal_pid_index(p->id) < erts_max_processes); - pix = internal_pid_index(p->id); - - erts_smp_mtx_lock(&proc_tab_mtx); erts_smp_runq_lock(rq); #ifdef ERTS_SMP - erts_pix_lock(pix_lock); - ASSERT(p->scheduler_data); ASSERT(p->scheduler_data->current_process == p); ASSERT(p->scheduler_data->free_process == NULL); p->scheduler_data->current_process = NULL; p->scheduler_data->free_process = p; - p->status_flags = 0; -#endif - process_tab[pix] = NULL; /* Time of death! */ - ASSERT(erts_smp_atomic32_read_nob(&process_count) > 0); - erts_smp_atomic32_dec_nob(&process_count); - -#ifdef ERTS_SMP - erts_pix_unlock(pix_lock); #endif - erts_smp_runq_unlock(rq); - - if (p_next < 0) { - if (p_last >= p_next) { - p_serial++; - p_serial &= p_serial_mask; - } - p_next = pix; - } - ERTS_MAYBE_SAVE_TERMINATING_PROCESS(p); + /* Time of death! */ + erts_ptab_delete_element(&erts_proc, &p->common); - erts_smp_mtx_unlock(&proc_tab_mtx); + erts_smp_runq_unlock(rq); } /* @@ -8961,12 +11937,34 @@ continue_exit_process(Process *p * when the monitors and/or links hit. */ - mon = p->monitors; - p->monitors = NULL; /* to avoid recursive deletion during traversal */ + { + /* Inactivate and notify free */ + erts_aint32_t n, e, a = erts_smp_atomic32_read_nob(&p->state); +#ifdef ERTS_SMP + int refc_inced = 0; +#endif + while (1) { + n = e = a; + ASSERT(a & ERTS_PSFLG_EXITING); + n |= ERTS_PSFLG_FREE; + n &= ~ERTS_PSFLG_ACTIVE; +#ifdef ERTS_SMP + if ((n & ERTS_PSFLG_IN_RUNQ) && !refc_inced) { + erts_smp_proc_inc_refc(p); + refc_inced = 1; + } +#endif + a = erts_smp_atomic32_cmpxchg_mb(&p->state, n, e); + if (a == e) + break; + } - lnk = p->nlinks; - p->nlinks = NULL; - p->status = P_FREE; +#ifdef ERTS_SMP + if (refc_inced && !(n & ERTS_PSFLG_IN_RUNQ)) + erts_smp_proc_dec_refc(p); +#endif + } + dep = ((p->flags & F_DISTRIBUTION) ? ERTS_PROC_SET_DIST_ENTRY(p, ERTS_PROC_LOCKS_ALL, NULL) : NULL); @@ -8996,7 +11994,7 @@ continue_exit_process(Process *p UseTmpHeap(4,p); hp = &tmp_heap[0]; - exit_tuple = TUPLE3(hp, am_EXIT, p->id, reason); + exit_tuple = TUPLE3(hp, am_EXIT, p->common.id, reason); exit_tuple_sz = size_object(exit_tuple); @@ -9021,8 +12019,10 @@ continue_exit_process(Process *p delete_process(p); +#ifdef ERTS_SMP erts_smp_proc_lock(p, ERTS_PROC_LOCK_MAIN); ERTS_SMP_CHK_HAVE_ONLY_MAIN_PROC_LOCK(p); +#endif return; @@ -9035,8 +12035,6 @@ continue_exit_process(Process *p ERTS_SMP_LC_ASSERT(curr_locks == erts_proc_lc_my_proc_locks(p)); ERTS_SMP_LC_ASSERT(ERTS_PROC_LOCK_MAIN & curr_locks); - ASSERT(p->status == P_EXITING); - p->i = (BeamInstr *) beam_continue_exit; if (!(curr_locks & ERTS_PROC_LOCK_STATUS)) { @@ -9044,8 +12042,6 @@ continue_exit_process(Process *p curr_locks |= ERTS_PROC_LOCK_STATUS; } - erts_add_to_runq(p); - if (curr_locks != ERTS_PROC_LOCK_MAIN) erts_smp_proc_unlock(p, ~ERTS_PROC_LOCK_MAIN & curr_locks); @@ -9057,33 +12053,15 @@ continue_exit_process(Process *p static void timeout_proc(Process* p) { + erts_aint32_t state; BeamInstr** pi = (BeamInstr **) p->def_arg_reg; p->i = *pi; p->flags |= F_TIMO; p->flags &= ~F_INSLPQUEUE; - switch (p->status) { - case P_GARBING: - switch (p->gcstatus) { - case P_SUSPENDED: - goto suspended; - case P_WAITING: - goto waiting; - default: - break; - } - break; - case P_WAITING: - waiting: - erts_add_to_runq(p); - break; - case P_SUSPENDED: - suspended: - p->rstatus = P_RUNABLE; /* MUST set resume status to runnable */ - break; - default: - break; - } + state = erts_smp_atomic32_read_acqb(&p->state); + if (!(state & ERTS_PSFLG_ACTIVE)) + schedule_process(p, state); } @@ -9093,9 +12071,9 @@ cancel_timer(Process* p) ERTS_SMP_LC_ASSERT(ERTS_PROC_LOCK_MAIN & erts_proc_lc_my_proc_locks(p)); p->flags &= ~(F_INSLPQUEUE|F_TIMO); #ifdef ERTS_SMP - erts_cancel_smp_ptimer(p->u.ptimer); + erts_cancel_smp_ptimer(p->common.u.alive.ptimer); #else - erts_cancel_timer(&p->u.tm); + erts_cancel_timer(&p->common.u.alive.tm); #endif } @@ -9116,12 +12094,12 @@ set_timer(Process* p, Uint timeout) p->flags &= ~F_TIMO; #ifdef ERTS_SMP - erts_create_smp_ptimer(&p->u.ptimer, - p->id, + erts_create_smp_ptimer(&p->common.u.alive.ptimer, + p->common.id, (ErlTimeoutProc) timeout_proc, timeout); #else - erts_set_timer(&p->u.tm, + erts_set_timer(&p->common.u.alive.tm, (ErlTimeoutProc) timeout_proc, NULL, (void*) p, @@ -9139,7 +12117,7 @@ erts_stack_dump(int to, void *to_arg, Process *p) Eterm* sp; int yreg = -1; - if (p->trace_flags & F_SENSITIVE) { + if (ERTS_TRACE_FLAGS(p) & F_SENSITIVE) { return; } erts_program_counter_info(to, to_arg, p); @@ -9151,6 +12129,7 @@ erts_stack_dump(int to, void *to_arg, Process *p) void erts_program_counter_info(int to, void *to_arg, Process *p) { + erts_aint32_t state; int i; erts_print(to, to_arg, "Program counter: %p (", p->i); @@ -9159,7 +12138,10 @@ erts_program_counter_info(int to, void *to_arg, Process *p) erts_print(to, to_arg, "CP: %p (", p->cp); print_function_from_pc(to, to_arg, p->cp); erts_print(to, to_arg, ")\n"); - if (!((p->status == P_RUNNING) || (p->status == P_GARBING))) { + state = erts_smp_atomic32_read_acqb(&p->state); + if (!(state & (ERTS_PSFLG_RUNNING + | ERTS_PSFLG_RUNNING_SYS + | ERTS_PSFLG_GC))) { erts_print(to, to_arg, "arity = %d\n",p->arity); if (!ERTS_IS_CRASH_DUMPING) { /* @@ -9205,7 +12187,7 @@ stack_element_dump(int to, void *to_arg, Process* p, Eterm* sp, int yreg) erts_print(to, to_arg, "\n%p ", sp); } else { char sbuf[16]; - sprintf(sbuf, "y(%d)", yreg); + erts_snprintf(sbuf, sizeof(sbuf), "y(%d)", yreg); erts_print(to, to_arg, "%-8s ", sbuf); yreg++; } @@ -9225,1085 +12207,6 @@ stack_element_dump(int to, void *to_arg, Process* p, Eterm* sp, int yreg) return yreg; } -/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\ - * The processes/0 BIF implementation. * -\* */ - - -#define ERTS_PROCESSES_BIF_TAB_INSPECT_INDICES_PER_RED 25 -#define ERTS_PROCESSES_BIF_TAB_CHUNK_SIZE 1000 -#define ERTS_PROCESSES_BIF_MIN_START_REDS \ - (ERTS_PROCESSES_BIF_TAB_CHUNK_SIZE \ - / ERTS_PROCESSES_BIF_TAB_INSPECT_INDICES_PER_RED) - -#define ERTS_PROCESSES_BIF_TAB_FREE_TERM_PROC_REDS 1 - -#define ERTS_PROCESSES_BIF_INSPECT_TERM_PROC_PER_RED 10 - -#define ERTS_PROCESSES_INSPECT_TERM_PROC_MAX_REDS \ - (ERTS_PROCESSES_BIF_TAB_CHUNK_SIZE \ - / ERTS_PROCESSES_BIF_TAB_INSPECT_INDICES_PER_RED) - - -#define ERTS_PROCESSES_BIF_BUILD_RESULT_CONSES_PER_RED 75 - -#define ERTS_PROCS_DBG_DO_TRACE 0 - -#ifdef DEBUG -# define ERTS_PROCESSES_BIF_DEBUGLEVEL 100 -#else -# define ERTS_PROCESSES_BIF_DEBUGLEVEL 0 -#endif - -#define ERTS_PROCS_DBGLVL_CHK_HALLOC 1 -#define ERTS_PROCS_DBGLVL_CHK_FOUND_PIDS 5 -#define ERTS_PROCS_DBGLVL_CHK_PIDS 10 -#define ERTS_PROCS_DBGLVL_CHK_TERM_PROC_LIST 20 -#define ERTS_PROCS_DBGLVL_CHK_RESLIST 20 - -#if ERTS_PROCESSES_BIF_DEBUGLEVEL == 0 -# define ERTS_PROCS_ASSERT(EXP) -#else -# define ERTS_PROCS_ASSERT(EXP) \ - ((void) ((EXP) \ - ? 1 \ - : (debug_processes_assert_error(#EXP, __FILE__, __LINE__), 0))) -#endif - - -#if ERTS_PROCESSES_BIF_DEBUGLEVEL >= ERTS_PROCS_DBGLVL_CHK_HALLOC -# define ERTS_PROCS_DBG_SAVE_HEAP_ALLOC(PBDP, HP, SZ) \ -do { \ - ERTS_PROCS_ASSERT(!(PBDP)->debug.heap); \ - ERTS_PROCS_ASSERT(!(PBDP)->debug.heap_size); \ - (PBDP)->debug.heap = (HP); \ - (PBDP)->debug.heap_size = (SZ); \ -} while (0) -# define ERTS_PROCS_DBG_VERIFY_HEAP_ALLOC_USED(PBDP, HP) \ -do { \ - ERTS_PROCS_ASSERT((PBDP)->debug.heap); \ - ERTS_PROCS_ASSERT((PBDP)->debug.heap_size); \ - ERTS_PROCS_ASSERT((PBDP)->debug.heap + (PBDP)->debug.heap_size == (HP));\ - (PBDP)->debug.heap = NULL; \ - (PBDP)->debug.heap_size = 0; \ -} while (0) -# define ERTS_PROCS_DBG_HEAP_ALLOC_INIT(PBDP) \ -do { \ - (PBDP)->debug.heap = NULL; \ - (PBDP)->debug.heap_size = 0; \ -} while (0) -#else -# define ERTS_PROCS_DBG_SAVE_HEAP_ALLOC(PBDP, HP, SZ) -# define ERTS_PROCS_DBG_VERIFY_HEAP_ALLOC_USED(PBDP, HP) -# define ERTS_PROCS_DBG_HEAP_ALLOC_INIT(PBDP) -#endif - -#if ERTS_PROCESSES_BIF_DEBUGLEVEL >= ERTS_PROCS_DBGLVL_CHK_RESLIST -# define ERTS_PROCS_DBG_CHK_RESLIST(R) debug_processes_check_res_list((R)) -#else -# define ERTS_PROCS_DBG_CHK_RESLIST(R) -#endif - -#if ERTS_PROCESSES_BIF_DEBUGLEVEL >= ERTS_PROCS_DBGLVL_CHK_PIDS -# define ERTS_PROCS_DBG_SAVE_PIDS(PBDP) debug_processes_save_all_pids((PBDP)) -# define ERTS_PROCS_DBG_VERIFY_PIDS(PBDP) \ -do { \ - if (!(PBDP)->debug.correct_pids_verified) \ - debug_processes_verify_all_pids((PBDP)); \ -} while (0) -# define ERTS_PROCS_DBG_CLEANUP_CHK_PIDS(PBDP) \ -do { \ - if ((PBDP)->debug.correct_pids) { \ - erts_free(ERTS_ALC_T_PROCS_PIDS, \ - (PBDP)->debug.correct_pids); \ - (PBDP)->debug.correct_pids = NULL; \ - } \ -} while(0) -# define ERTS_PROCS_DBG_CHK_PIDS_INIT(PBDP) \ -do { \ - (PBDP)->debug.correct_pids_verified = 0; \ - (PBDP)->debug.correct_pids = NULL; \ -} while (0) -#else -# define ERTS_PROCS_DBG_SAVE_PIDS(PBDP) -# define ERTS_PROCS_DBG_VERIFY_PIDS(PBDP) -# define ERTS_PROCS_DBG_CLEANUP_CHK_PIDS(PBDP) -# define ERTS_PROCS_DBG_CHK_PIDS_INIT(PBDP) -#endif - -#if ERTS_PROCESSES_BIF_DEBUGLEVEL >= ERTS_PROCS_DBGLVL_CHK_FOUND_PIDS -# define ERTS_PROCS_DBG_CHK_PID_FOUND(PBDP, PID, TVP) \ - debug_processes_check_found_pid((PBDP), (PID), (TVP), 1) -# define ERTS_PROCS_DBG_CHK_PID_NOT_FOUND(PBDP, PID, TVP) \ - debug_processes_check_found_pid((PBDP), (PID), (TVP), 0) -#else -# define ERTS_PROCS_DBG_CHK_PID_FOUND(PBDP, PID, TVP) -# define ERTS_PROCS_DBG_CHK_PID_NOT_FOUND(PBDP, PID, TVP) -#endif - -#if ERTS_PROCESSES_BIF_DEBUGLEVEL >= ERTS_PROCS_DBGLVL_CHK_TERM_PROC_LIST -# define ERTS_PROCS_DBG_CHK_TPLIST() \ - debug_processes_check_term_proc_list() -# define ERTS_PROCS_DBG_CHK_FREELIST(FL) \ - debug_processes_check_term_proc_free_list(FL) -#else -# define ERTS_PROCS_DBG_CHK_TPLIST() -# define ERTS_PROCS_DBG_CHK_FREELIST(FL) -#endif - -#if ERTS_PROCESSES_BIF_DEBUGLEVEL == 0 -#if ERTS_PROCS_DBG_DO_TRACE -# define ERTS_PROCS_DBG_INIT(P, PBDP) (PBDP)->debug.caller = (P)->id -# else -# define ERTS_PROCS_DBG_INIT(P, PBDP) -# endif -# define ERTS_PROCS_DBG_CLEANUP(PBDP) -#else -# define ERTS_PROCS_DBG_INIT(P, PBDP) \ -do { \ - (PBDP)->debug.caller = (P)->id; \ - ERTS_PROCS_DBG_HEAP_ALLOC_INIT((PBDP)); \ - ERTS_PROCS_DBG_CHK_PIDS_INIT((PBDP)); \ -} while (0) -# define ERTS_PROCS_DBG_CLEANUP(PBDP) \ -do { \ - ERTS_PROCS_DBG_CLEANUP_CHK_PIDS((PBDP)); \ -} while (0) -#endif - -#if ERTS_PROCS_DBG_DO_TRACE -# define ERTS_PROCS_DBG_TRACE(PID, FUNC, WHAT) \ - erts_fprintf(stderr, "%T %s:%d:%s(): %s\n", \ - (PID), __FILE__, __LINE__, #FUNC, #WHAT) -#else -# define ERTS_PROCS_DBG_TRACE(PID, FUNC, WHAT) -#endif - -static Uint processes_bif_tab_chunks; -static Export processes_trap_export; - -typedef struct { - SysTimeval time; -} ErtsProcessesBifChunkInfo; - -typedef enum { - INITIALIZING, - INSPECTING_TABLE, - INSPECTING_TERMINATED_PROCESSES, - BUILDING_RESULT, - RETURN_RESULT -} ErtsProcessesBifState; - -typedef struct { - ErtsProcessesBifState state; - Eterm caller; - ErtsProcessesBifChunkInfo *chunk; - int tix; - int pid_ix; - int pid_sz; - Eterm *pid; - ErtsTermProcElement *bif_invocation; /* Only used when > 1 chunk */ - -#if ERTS_PROCESSES_BIF_DEBUGLEVEL != 0 || ERTS_PROCS_DBG_DO_TRACE - struct { - Eterm caller; -#if ERTS_PROCESSES_BIF_DEBUGLEVEL >= ERTS_PROCS_DBGLVL_CHK_FOUND_PIDS - SysTimeval *pid_started; -#endif -#if ERTS_PROCESSES_BIF_DEBUGLEVEL >= ERTS_PROCS_DBGLVL_CHK_HALLOC - Eterm *heap; - Uint heap_size; -#endif -#if ERTS_PROCESSES_BIF_DEBUGLEVEL >= ERTS_PROCS_DBGLVL_CHK_PIDS - int correct_pids_verified; - Eterm *correct_pids; -#endif - } debug; -#endif - -} ErtsProcessesBifData; - - -#if ERTS_PROCESSES_BIF_DEBUGLEVEL != 0 -static void debug_processes_assert_error(char* expr, char* file, int line); -#endif -#if ERTS_PROCESSES_BIF_DEBUGLEVEL >= ERTS_PROCS_DBGLVL_CHK_RESLIST -static void debug_processes_check_res_list(Eterm list); -#endif -#if ERTS_PROCESSES_BIF_DEBUGLEVEL >= ERTS_PROCS_DBGLVL_CHK_PIDS -static void debug_processes_save_all_pids(ErtsProcessesBifData *pbdp); -static void debug_processes_verify_all_pids(ErtsProcessesBifData *pbdp); -#endif -#if ERTS_PROCESSES_BIF_DEBUGLEVEL >= ERTS_PROCS_DBGLVL_CHK_FOUND_PIDS -static void debug_processes_check_found_pid(ErtsProcessesBifData *pbdp, - Eterm pid, - SysTimeval *started, - int pid_should_be_found); -#endif -#if ERTS_PROCESSES_BIF_DEBUGLEVEL >= ERTS_PROCS_DBGLVL_CHK_TERM_PROC_LIST -static SysTimeval debug_tv_start; -static void debug_processes_check_term_proc_list(void); -static void debug_processes_check_term_proc_free_list(ErtsTermProcElement *tpep); -#endif - -static void -save_terminating_process(Process *p) -{ - ErtsTermProcElement *tpep = erts_alloc(ERTS_ALC_T_PROCS_TPROC_EL, - sizeof(ErtsTermProcElement)); - ERTS_PROCS_ASSERT(saved_term_procs.start && saved_term_procs.end); - ERTS_SMP_LC_ASSERT(erts_lc_mtx_is_locked(&proc_tab_mtx)); - - ERTS_PROCS_DBG_CHK_TPLIST(); - - tpep->prev = saved_term_procs.end; - tpep->next = NULL; - tpep->ix = internal_pid_index(p->id); - tpep->u.process.pid = p->id; - tpep->u.process.spawned = p->started; - erts_get_emu_time(&tpep->u.process.exited); - - saved_term_procs.end->next = tpep; - saved_term_procs.end = tpep; - - ERTS_PROCS_DBG_CHK_TPLIST(); - - ERTS_PROCS_ASSERT((tpep->prev->ix >= 0 - ? erts_cmp_timeval(&tpep->u.process.exited, - &tpep->prev->u.process.exited) - : erts_cmp_timeval(&tpep->u.process.exited, - &tpep->prev->u.bif_invocation.time)) > 0); -} - -static void -cleanup_processes_bif_data(Binary *bp) -{ - ErtsProcessesBifData *pbdp = ERTS_MAGIC_BIN_DATA(bp); - - ERTS_PROCS_DBG_TRACE(pbdp->debug.caller, cleanup_processes_bif_data, call); - - if (pbdp->state != INITIALIZING) { - - if (pbdp->chunk) { - erts_free(ERTS_ALC_T_PROCS_CNKINF, pbdp->chunk); - pbdp->chunk = NULL; - } - if (pbdp->pid) { - erts_free(ERTS_ALC_T_PROCS_PIDS, pbdp->pid); - pbdp->pid = NULL; - } - -#if ERTS_PROCESSES_BIF_DEBUGLEVEL >= ERTS_PROCS_DBGLVL_CHK_FOUND_PIDS - if (pbdp->debug.pid_started) { - erts_free(ERTS_ALC_T_PROCS_PIDS, pbdp->debug.pid_started); - pbdp->debug.pid_started = NULL; - } -#endif - - if (pbdp->bif_invocation) { - ErtsTermProcElement *tpep; - - erts_smp_mtx_lock(&proc_tab_mtx); - - ERTS_PROCS_DBG_TRACE(pbdp->debug.caller, - cleanup_processes_bif_data, - term_proc_cleanup); - - tpep = pbdp->bif_invocation; - pbdp->bif_invocation = NULL; - - ERTS_PROCS_DBG_CHK_TPLIST(); - - if (tpep->prev) { - /* - * Only remove this bif invokation when we - * have preceding invokations. - */ - tpep->prev->next = tpep->next; - if (tpep->next) - tpep->next->prev = tpep->prev; - else { - /* - * At the time of writing this branch cannot be - * reached. I don't want to remove this code though - * since it may be possible to reach this line - * in the future if the cleanup order in - * erts_do_exit_process() is changed. The ASSERT(0) - * is only here to make us aware that the reorder - * has happened. /rickard - */ - ASSERT(0); - saved_term_procs.end = tpep->prev; - } - erts_free(ERTS_ALC_T_PROCS_TPROC_EL, tpep); - } - else { - /* - * Free all elements until next bif invokation - * is found. - */ - ERTS_PROCS_ASSERT(saved_term_procs.start == tpep); - do { - ErtsTermProcElement *ftpep = tpep; - tpep = tpep->next; - erts_free(ERTS_ALC_T_PROCS_TPROC_EL, ftpep); - } while (tpep && tpep->ix >= 0); - saved_term_procs.start = tpep; - if (tpep) - tpep->prev = NULL; - else - saved_term_procs.end = NULL; - } - - ERTS_PROCS_DBG_CHK_TPLIST(); - - erts_smp_mtx_unlock(&proc_tab_mtx); - - } - } - - ERTS_PROCS_DBG_TRACE(pbdp->debug.caller, - cleanup_processes_bif_data, - return); - ERTS_PROCS_DBG_CLEANUP(pbdp); -} - -static int -processes_bif_engine(Process *p, Eterm *res_accp, Binary *mbp) -{ - ErtsProcessesBifData *pbdp = ERTS_MAGIC_BIN_DATA(mbp); - int have_reds; - int reds; - int locked = 0; - - do { - switch (pbdp->state) { - case INITIALIZING: - pbdp->chunk = erts_alloc(ERTS_ALC_T_PROCS_CNKINF, - (sizeof(ErtsProcessesBifChunkInfo) - * processes_bif_tab_chunks)); - pbdp->tix = 0; - pbdp->pid_ix = 0; - - erts_smp_mtx_lock(&proc_tab_mtx); - locked = 1; - - ERTS_PROCS_DBG_TRACE(p->id, processes_bif_engine, init); - - pbdp->pid_sz = erts_process_count(); - pbdp->pid = erts_alloc(ERTS_ALC_T_PROCS_PIDS, - sizeof(Eterm)*pbdp->pid_sz); - -#if ERTS_PROCESSES_BIF_DEBUGLEVEL >= ERTS_PROCS_DBGLVL_CHK_FOUND_PIDS - pbdp->debug.pid_started = erts_alloc(ERTS_ALC_T_PROCS_PIDS, - sizeof(SysTimeval)*pbdp->pid_sz); -#endif - - ERTS_PROCS_DBG_SAVE_PIDS(pbdp); - - if (processes_bif_tab_chunks == 1) - pbdp->bif_invocation = NULL; - else { - /* - * We will have to access the table multiple times - * releasing the table lock in between chunks. - */ - pbdp->bif_invocation = erts_alloc(ERTS_ALC_T_PROCS_TPROC_EL, - sizeof(ErtsTermProcElement)); - pbdp->bif_invocation->ix = -1; - erts_get_emu_time(&pbdp->bif_invocation->u.bif_invocation.time); - ERTS_PROCS_DBG_CHK_TPLIST(); - - pbdp->bif_invocation->next = NULL; - if (saved_term_procs.end) { - pbdp->bif_invocation->prev = saved_term_procs.end; - saved_term_procs.end->next = pbdp->bif_invocation; - ERTS_PROCS_ASSERT(saved_term_procs.start); - } - else { - pbdp->bif_invocation->prev = NULL; - saved_term_procs.start = pbdp->bif_invocation; - } - saved_term_procs.end = pbdp->bif_invocation; - - ERTS_PROCS_DBG_CHK_TPLIST(); - - } - - pbdp->state = INSPECTING_TABLE; - /* Fall through */ - - case INSPECTING_TABLE: { - int ix = pbdp->tix; - int indices = ERTS_PROCESSES_BIF_TAB_CHUNK_SIZE; - int cix = ix / ERTS_PROCESSES_BIF_TAB_CHUNK_SIZE; - int end_ix = ix + indices; - SysTimeval *invocation_timep; - - invocation_timep = (pbdp->bif_invocation - ? &pbdp->bif_invocation->u.bif_invocation.time - : NULL); - - ERTS_PROCS_ASSERT(is_nil(*res_accp)); - if (!locked) { - erts_smp_mtx_lock(&proc_tab_mtx); - locked = 1; - } - - ERTS_SMP_LC_ASSERT(erts_lc_mtx_is_locked(&proc_tab_mtx)); - ERTS_PROCS_DBG_TRACE(p->id, processes_bif_engine, insp_table); - - if (cix != 0) - erts_get_emu_time(&pbdp->chunk[cix].time); - else if (pbdp->bif_invocation) - pbdp->chunk[0].time = *invocation_timep; - /* else: Time is irrelevant */ - - if (end_ix >= erts_max_processes) { - ERTS_PROCS_ASSERT(cix+1 == processes_bif_tab_chunks); - end_ix = erts_max_processes; - indices = end_ix - ix; - /* What to do when done with this chunk */ - pbdp->state = (processes_bif_tab_chunks == 1 - ? BUILDING_RESULT - : INSPECTING_TERMINATED_PROCESSES); - } - - for (; ix < end_ix; ix++) { - Process *rp = process_tab[ix]; - if (rp - && (!invocation_timep - || erts_cmp_timeval(&rp->started, - invocation_timep) < 0)) { - ERTS_PROCS_ASSERT(is_internal_pid(rp->id)); - pbdp->pid[pbdp->pid_ix] = rp->id; - -#if ERTS_PROCESSES_BIF_DEBUGLEVEL >= ERTS_PROCS_DBGLVL_CHK_FOUND_PIDS - pbdp->debug.pid_started[pbdp->pid_ix] = rp->started; -#endif - - pbdp->pid_ix++; - ERTS_PROCS_ASSERT(pbdp->pid_ix <= pbdp->pid_sz); - } - } - - pbdp->tix = end_ix; - - erts_smp_mtx_unlock(&proc_tab_mtx); - locked = 0; - - reds = indices/ERTS_PROCESSES_BIF_TAB_INSPECT_INDICES_PER_RED; - BUMP_REDS(p, reds); - - have_reds = ERTS_BIF_REDS_LEFT(p); - - if (have_reds && pbdp->state == INSPECTING_TABLE) { - ix = pbdp->tix; - indices = ERTS_PROCESSES_BIF_TAB_CHUNK_SIZE; - end_ix = ix + indices; - if (end_ix > erts_max_processes) { - end_ix = erts_max_processes; - indices = end_ix - ix; - } - - reds = indices/ERTS_PROCESSES_BIF_TAB_INSPECT_INDICES_PER_RED; - - /* Pretend we have no reds left if we haven't got enough - reductions to complete next chunk */ - if (reds > have_reds) - have_reds = 0; - } - - break; - } - - case INSPECTING_TERMINATED_PROCESSES: { - int i; - int max_reds; - int free_term_procs = 0; - SysTimeval *invocation_timep; - ErtsTermProcElement *tpep; - ErtsTermProcElement *free_list = NULL; - - tpep = pbdp->bif_invocation; - ERTS_PROCS_ASSERT(tpep); - invocation_timep = &tpep->u.bif_invocation.time; - - max_reds = have_reds = ERTS_BIF_REDS_LEFT(p); - if (max_reds > ERTS_PROCESSES_INSPECT_TERM_PROC_MAX_REDS) - max_reds = ERTS_PROCESSES_INSPECT_TERM_PROC_MAX_REDS; - - reds = 0; - erts_smp_mtx_lock(&proc_tab_mtx); - ERTS_PROCS_DBG_TRACE(p->id, processes_bif_engine, insp_term_procs); - - ERTS_PROCS_DBG_CHK_TPLIST(); - - if (tpep->prev) - tpep->prev->next = tpep->next; - else { - ERTS_PROCS_ASSERT(saved_term_procs.start == tpep); - saved_term_procs.start = tpep->next; - - if (saved_term_procs.start && saved_term_procs.start->ix >= 0) { - free_list = saved_term_procs.start; - free_term_procs = 1; - } - } - - if (tpep->next) - tpep->next->prev = tpep->prev; - else - saved_term_procs.end = tpep->prev; - - tpep = tpep->next; - - i = 0; - while (reds < max_reds && tpep) { - if (tpep->ix < 0) { - if (free_term_procs) { - ERTS_PROCS_ASSERT(free_list); - ERTS_PROCS_ASSERT(tpep->prev); - - tpep->prev->next = NULL; /* end of free_list */ - saved_term_procs.start = tpep; - tpep->prev = NULL; - free_term_procs = 0; - } - } - else { - int cix = tpep->ix/ERTS_PROCESSES_BIF_TAB_CHUNK_SIZE; - SysTimeval *chunk_timep = &pbdp->chunk[cix].time; - Eterm pid = tpep->u.process.pid; - ERTS_PROCS_ASSERT(is_internal_pid(pid)); - - if (erts_cmp_timeval(&tpep->u.process.spawned, - invocation_timep) < 0) { - if (erts_cmp_timeval(&tpep->u.process.exited, - chunk_timep) < 0) { - ERTS_PROCS_DBG_CHK_PID_NOT_FOUND(pbdp, - pid, - &tpep->u.process.spawned); - pbdp->pid[pbdp->pid_ix] = pid; -#if ERTS_PROCESSES_BIF_DEBUGLEVEL >= ERTS_PROCS_DBGLVL_CHK_FOUND_PIDS - pbdp->debug.pid_started[pbdp->pid_ix] = tpep->u.process.spawned; -#endif - pbdp->pid_ix++; - ERTS_PROCS_ASSERT(pbdp->pid_ix <= pbdp->pid_sz); - } - else { - ERTS_PROCS_DBG_CHK_PID_FOUND(pbdp, - pid, - &tpep->u.process.spawned); - } - } - else { - ERTS_PROCS_DBG_CHK_PID_NOT_FOUND(pbdp, - pid, - &tpep->u.process.spawned); - } - - i++; - if (i == ERTS_PROCESSES_BIF_INSPECT_TERM_PROC_PER_RED) { - reds++; - i = 0; - } - if (free_term_procs) - reds += ERTS_PROCESSES_BIF_TAB_FREE_TERM_PROC_REDS; - } - tpep = tpep->next; - } - - if (free_term_procs) { - ERTS_PROCS_ASSERT(free_list); - saved_term_procs.start = tpep; - if (!tpep) - saved_term_procs.end = NULL; - else { - ERTS_PROCS_ASSERT(tpep->prev); - tpep->prev->next = NULL; /* end of free_list */ - tpep->prev = NULL; - } - } - - if (!tpep) { - /* Done */ - ERTS_PROCS_ASSERT(pbdp->pid_ix == pbdp->pid_sz); - pbdp->state = BUILDING_RESULT; - pbdp->bif_invocation->next = free_list; - free_list = pbdp->bif_invocation; - pbdp->bif_invocation = NULL; - } - else { - /* Link in bif_invocation again where we left off */ - pbdp->bif_invocation->prev = tpep->prev; - pbdp->bif_invocation->next = tpep; - tpep->prev = pbdp->bif_invocation; - if (pbdp->bif_invocation->prev) - pbdp->bif_invocation->prev->next = pbdp->bif_invocation; - else { - ERTS_PROCS_ASSERT(saved_term_procs.start == tpep); - saved_term_procs.start = pbdp->bif_invocation; - } - } - - ERTS_PROCS_DBG_CHK_TPLIST(); - ERTS_PROCS_DBG_CHK_FREELIST(free_list); - erts_smp_mtx_unlock(&proc_tab_mtx); - - /* - * We do the actual free of term proc structures now when we - * have released the table lock instead of when we encountered - * them. This since free() isn't for free and we don't want to - * unnecessarily block other schedulers. - */ - while (free_list) { - tpep = free_list; - free_list = tpep->next; - erts_free(ERTS_ALC_T_PROCS_TPROC_EL, tpep); - } - - have_reds -= reds; - if (have_reds < 0) - have_reds = 0; - BUMP_REDS(p, reds); - break; - } - - case BUILDING_RESULT: { - int conses, ix, min_ix; - Eterm *hp; - Eterm res = *res_accp; - - ERTS_PROCS_DBG_VERIFY_PIDS(pbdp); - ERTS_PROCS_DBG_CHK_RESLIST(res); - - ERTS_PROCS_DBG_TRACE(p->id, processes_bif_engine, begin_build_res); - - have_reds = ERTS_BIF_REDS_LEFT(p); - conses = ERTS_PROCESSES_BIF_BUILD_RESULT_CONSES_PER_RED*have_reds; - min_ix = pbdp->pid_ix - conses; - if (min_ix < 0) { - min_ix = 0; - conses = pbdp->pid_ix; - } - - hp = HAlloc(p, conses*2); - ERTS_PROCS_DBG_SAVE_HEAP_ALLOC(pbdp, hp, conses*2); - - for (ix = pbdp->pid_ix - 1; ix >= min_ix; ix--) { - ERTS_PROCS_ASSERT(is_internal_pid(pbdp->pid[ix])); - res = CONS(hp, pbdp->pid[ix], res); - hp += 2; - } - - ERTS_PROCS_DBG_VERIFY_HEAP_ALLOC_USED(pbdp, hp); - - pbdp->pid_ix = min_ix; - if (min_ix == 0) - pbdp->state = RETURN_RESULT; - else { - pbdp->pid_sz = min_ix; - pbdp->pid = erts_realloc(ERTS_ALC_T_PROCS_PIDS, - pbdp->pid, - sizeof(Eterm)*pbdp->pid_sz); -#if ERTS_PROCESSES_BIF_DEBUGLEVEL >= ERTS_PROCS_DBGLVL_CHK_FOUND_PIDS - pbdp->debug.pid_started = erts_realloc(ERTS_ALC_T_PROCS_PIDS, - pbdp->debug.pid_started, - sizeof(SysTimeval)*pbdp->pid_sz); -#endif - } - reds = conses/ERTS_PROCESSES_BIF_BUILD_RESULT_CONSES_PER_RED; - BUMP_REDS(p, reds); - have_reds -= reds; - - ERTS_PROCS_DBG_CHK_RESLIST(res); - ERTS_PROCS_DBG_TRACE(p->id, processes_bif_engine, end_build_res); - *res_accp = res; - break; - } - case RETURN_RESULT: - cleanup_processes_bif_data(mbp); - return 1; - - default: - erl_exit(ERTS_ABORT_EXIT, - "erlang:processes/0: Invalid state: %d\n", - (int) pbdp->state); - } - - - } while (have_reds || pbdp->state == RETURN_RESULT); - - return 0; -} - -/* - * processes_trap/2 is a hidden BIF that processes/0 traps to. - */ - -static BIF_RETTYPE processes_trap(BIF_ALIST_2) -{ - Eterm res_acc; - Binary *mbp; - - /* - * This bif cannot be called from erlang code. It can only be - * trapped to from processes/0; therefore, a bad argument - * is a processes/0 internal error. - */ - - ERTS_PROCS_DBG_TRACE(BIF_P->id, processes_trap, call); - ERTS_PROCS_ASSERT(is_nil(BIF_ARG_1) || is_list(BIF_ARG_1)); - - res_acc = BIF_ARG_1; - - ERTS_PROCS_ASSERT(ERTS_TERM_IS_MAGIC_BINARY(BIF_ARG_2)); - - mbp = ((ProcBin *) binary_val(BIF_ARG_2))->val; - - ERTS_PROCS_ASSERT(ERTS_MAGIC_BIN_DESTRUCTOR(mbp) - == cleanup_processes_bif_data); - ERTS_PROCS_ASSERT( - ((ErtsProcessesBifData *) ERTS_MAGIC_BIN_DATA(mbp))->debug.caller - == BIF_P->id); - - if (processes_bif_engine(BIF_P, &res_acc, mbp)) { - ERTS_PROCS_DBG_TRACE(BIF_P->id, processes_trap, return); - BIF_RET(res_acc); - } - else { - ERTS_PROCS_DBG_TRACE(BIF_P->id, processes_trap, trap); - ERTS_BIF_YIELD2(&processes_trap_export, BIF_P, res_acc, BIF_ARG_2); - } -} - - - -/* - * The actual processes/0 BIF. - */ - -BIF_RETTYPE processes_0(BIF_ALIST_0) -{ - /* - * A requirement: The list of pids returned should be a consistent - * snapshot of all processes existing at some point - * in time during the execution of processes/0. Since - * processes might terminate while processes/0 is - * executing, we have to keep track of terminated - * processes and add them to the result. We also - * ignore processes created after processes/0 has - * begun executing. - */ - Eterm res_acc = NIL; - Binary *mbp = erts_create_magic_binary(sizeof(ErtsProcessesBifData), - cleanup_processes_bif_data); - ErtsProcessesBifData *pbdp = ERTS_MAGIC_BIN_DATA(mbp); - - ERTS_PROCS_DBG_TRACE(BIF_P->id, processes_0, call); - pbdp->state = INITIALIZING; - ERTS_PROCS_DBG_INIT(BIF_P, pbdp); - - if (ERTS_BIF_REDS_LEFT(BIF_P) >= ERTS_PROCESSES_BIF_MIN_START_REDS - && processes_bif_engine(BIF_P, &res_acc, mbp)) { - erts_bin_free(mbp); - ERTS_PROCS_DBG_CHK_RESLIST(res_acc); - ERTS_PROCS_DBG_TRACE(BIF_P->id, processes_0, return); - BIF_RET(res_acc); - } - else { - Eterm *hp; - Eterm magic_bin; - ERTS_PROCS_DBG_CHK_RESLIST(res_acc); - hp = HAlloc(BIF_P, PROC_BIN_SIZE); - ERTS_PROCS_DBG_SAVE_HEAP_ALLOC(pbdp, hp, PROC_BIN_SIZE); - magic_bin = erts_mk_magic_binary_term(&hp, &MSO(BIF_P), mbp); - ERTS_PROCS_DBG_VERIFY_HEAP_ALLOC_USED(pbdp, hp); - ERTS_PROCS_DBG_TRACE(BIF_P->id, processes_0, trap); - ERTS_BIF_YIELD2(&processes_trap_export, BIF_P, res_acc, magic_bin); - } -} - -static void -init_processes_bif(void) -{ - saved_term_procs.start = NULL; - saved_term_procs.end = NULL; - processes_bif_tab_chunks = (((erts_max_processes - 1) - / ERTS_PROCESSES_BIF_TAB_CHUNK_SIZE) - + 1); - - /* processes_trap/2 is a hidden BIF that the processes/0 BIF traps to. */ - sys_memset((void *) &processes_trap_export, 0, sizeof(Export)); - processes_trap_export.address = &processes_trap_export.code[3]; - processes_trap_export.code[0] = am_erlang; - processes_trap_export.code[1] = am_processes_trap; - processes_trap_export.code[2] = 2; - processes_trap_export.code[3] = (BeamInstr) em_apply_bif; - processes_trap_export.code[4] = (BeamInstr) &processes_trap; - -#if ERTS_PROCESSES_BIF_DEBUGLEVEL >= ERTS_PROCS_DBGLVL_CHK_TERM_PROC_LIST - erts_get_emu_time(&debug_tv_start); -#endif - -} - -/* - * Debug stuff - */ - -#if defined(ERTS_SMP) && defined(ERTS_ENABLE_LOCK_CHECK) -int -erts_dbg_check_halloc_lock(Process *p) -{ - if (ERTS_PROC_LOCK_MAIN & erts_proc_lc_my_proc_locks(p)) - return 1; - if (p->id == ERTS_INVALID_PID) - return 1; - if (p->scheduler_data && p == p->scheduler_data->match_pseudo_process) - return 1; - if (erts_thr_progress_is_blocking()) - return 1; - return 0; -} -#endif - -Eterm -erts_debug_processes(Process *c_p) -{ - /* This is the old processes/0 BIF. */ - int i; - Uint need; - Eterm res; - Eterm* hp; - Process *p; -#ifdef DEBUG - Eterm *hp_end; -#endif - - erts_smp_mtx_lock(&proc_tab_mtx); - - res = NIL; - need = erts_process_count() * 2; - hp = HAlloc(c_p, need); /* we need two heap words for each pid */ -#ifdef DEBUG - hp_end = hp + need; -#endif - - /* make the list by scanning bakward */ - - - for (i = erts_max_processes-1; i >= 0; i--) { - if ((p = process_tab[i]) != NULL) { - res = CONS(hp, process_tab[i]->id, res); - hp += 2; - } - } - ASSERT(hp == hp_end); - - erts_smp_mtx_unlock(&proc_tab_mtx); - - return res; -} - -Eterm -erts_debug_processes_bif_info(Process *c_p) -{ - ERTS_DECL_AM(processes_bif_info); - Eterm elements[] = { - AM_processes_bif_info, - make_small((Uint) ERTS_PROCESSES_BIF_MIN_START_REDS), - make_small((Uint) processes_bif_tab_chunks), - make_small((Uint) ERTS_PROCESSES_BIF_TAB_CHUNK_SIZE), - make_small((Uint) ERTS_PROCESSES_BIF_TAB_INSPECT_INDICES_PER_RED), - make_small((Uint) ERTS_PROCESSES_BIF_TAB_FREE_TERM_PROC_REDS), - make_small((Uint) ERTS_PROCESSES_BIF_INSPECT_TERM_PROC_PER_RED), - make_small((Uint) ERTS_PROCESSES_INSPECT_TERM_PROC_MAX_REDS), - make_small((Uint) ERTS_PROCESSES_BIF_BUILD_RESULT_CONSES_PER_RED), - make_small((Uint) ERTS_PROCESSES_BIF_DEBUGLEVEL) - }; - Uint sz = 0; - Eterm *hp; - (void) erts_bld_tuplev(NULL, &sz, sizeof(elements)/sizeof(Eterm), elements); - hp = HAlloc(c_p, sz); - return erts_bld_tuplev(&hp, NULL, sizeof(elements)/sizeof(Eterm), elements); -} - -#if ERTS_PROCESSES_BIF_DEBUGLEVEL >= ERTS_PROCS_DBGLVL_CHK_FOUND_PIDS -static void -debug_processes_check_found_pid(ErtsProcessesBifData *pbdp, - Eterm pid, - SysTimeval *tvp, - int pid_should_be_found) -{ - int i; - for (i = 0; i < pbdp->pid_ix; i++) { - if (pbdp->pid[i] == pid - && pbdp->debug.pid_started[i].tv_sec == tvp->tv_sec - && pbdp->debug.pid_started[i].tv_usec == tvp->tv_usec) { - ERTS_PROCS_ASSERT(pid_should_be_found); - return; - } - } - ERTS_PROCS_ASSERT(!pid_should_be_found); -} -#endif - -#if ERTS_PROCESSES_BIF_DEBUGLEVEL >= ERTS_PROCS_DBGLVL_CHK_RESLIST -static void -debug_processes_check_res_list(Eterm list) -{ - while (is_list(list)) { - Eterm* consp = list_val(list); - Eterm hd = CAR(consp); - ERTS_PROCS_ASSERT(is_internal_pid(hd)); - list = CDR(consp); - } - - ERTS_PROCS_ASSERT(is_nil(list)); -} -#endif - -#if ERTS_PROCESSES_BIF_DEBUGLEVEL >= ERTS_PROCS_DBGLVL_CHK_PIDS - -static void -debug_processes_save_all_pids(ErtsProcessesBifData *pbdp) -{ - int ix, tix, cpix; - pbdp->debug.correct_pids_verified = 0; - pbdp->debug.correct_pids = erts_alloc(ERTS_ALC_T_PROCS_PIDS, - sizeof(Eterm)*pbdp->pid_sz); - - for (tix = 0, cpix = 0; tix < erts_max_processes; tix++) { - Process *rp = process_tab[tix]; - if (rp) { - ERTS_PROCS_ASSERT(is_internal_pid(rp->id)); - pbdp->debug.correct_pids[cpix++] = rp->id; - ERTS_PROCS_ASSERT(cpix <= pbdp->pid_sz); - } - } - ERTS_PROCS_ASSERT(cpix == pbdp->pid_sz); - - for (ix = 0; ix < pbdp->pid_sz; ix++) - pbdp->pid[ix] = make_small(ix); -} - -static void -debug_processes_verify_all_pids(ErtsProcessesBifData *pbdp) -{ - int ix, cpix; - - ERTS_PROCS_ASSERT(pbdp->pid_ix == pbdp->pid_sz); - - for (ix = 0; ix < pbdp->pid_sz; ix++) { - int found = 0; - Eterm pid = pbdp->pid[ix]; - ERTS_PROCS_ASSERT(is_internal_pid(pid)); - for (cpix = ix; cpix < pbdp->pid_sz; cpix++) { - if (pbdp->debug.correct_pids[cpix] == pid) { - pbdp->debug.correct_pids[cpix] = NIL; - found = 1; - break; - } - } - if (!found) { - for (cpix = 0; cpix < ix; cpix++) { - if (pbdp->debug.correct_pids[cpix] == pid) { - pbdp->debug.correct_pids[cpix] = NIL; - found = 1; - break; - } - } - } - ERTS_PROCS_ASSERT(found); - } - pbdp->debug.correct_pids_verified = 1; - - erts_free(ERTS_ALC_T_PROCS_PIDS, pbdp->debug.correct_pids); - pbdp->debug.correct_pids = NULL; -} -#endif /* ERTS_PROCESSES_BIF_DEBUGLEVEL >= ERTS_PROCS_DBGLVL_CHK_PIDS */ - -#if ERTS_PROCESSES_BIF_DEBUGLEVEL >= ERTS_PROCS_DBGLVL_CHK_TERM_PROC_LIST -static void -debug_processes_check_term_proc_list(void) -{ - ERTS_SMP_LC_ASSERT(erts_lc_mtx_is_locked(&proc_tab_mtx)); - if (!saved_term_procs.start) - ERTS_PROCS_ASSERT(!saved_term_procs.end); - else { - SysTimeval tv_now; - SysTimeval *prev_xtvp = NULL; - ErtsTermProcElement *tpep; - erts_get_emu_time(&tv_now); - - for (tpep = saved_term_procs.start; tpep; tpep = tpep->next) { - if (!tpep->prev) - ERTS_PROCS_ASSERT(saved_term_procs.start == tpep); - else - ERTS_PROCS_ASSERT(tpep->prev->next == tpep); - if (!tpep->next) - ERTS_PROCS_ASSERT(saved_term_procs.end == tpep); - else - ERTS_PROCS_ASSERT(tpep->next->prev == tpep); - if (tpep->ix < 0) { - SysTimeval *tvp = &tpep->u.bif_invocation.time; - ERTS_PROCS_ASSERT(erts_cmp_timeval(&debug_tv_start, tvp) < 0 - && erts_cmp_timeval(tvp, &tv_now) < 0); - } - else { - SysTimeval *stvp = &tpep->u.process.spawned; - SysTimeval *xtvp = &tpep->u.process.exited; - - ERTS_PROCS_ASSERT(erts_cmp_timeval(&debug_tv_start, - stvp) < 0); - ERTS_PROCS_ASSERT(erts_cmp_timeval(stvp, xtvp) < 0); - if (prev_xtvp) - ERTS_PROCS_ASSERT(erts_cmp_timeval(prev_xtvp, xtvp) < 0); - prev_xtvp = xtvp; - ERTS_PROCS_ASSERT(is_internal_pid(tpep->u.process.pid)); - ERTS_PROCS_ASSERT(tpep->ix - == internal_pid_index(tpep->u.process.pid)); - } - } - - } -} - -static void -debug_processes_check_term_proc_free_list(ErtsTermProcElement *free_list) -{ - if (saved_term_procs.start) { - ErtsTermProcElement *ftpep; - ErtsTermProcElement *tpep; - - for (ftpep = free_list; ftpep; ftpep = ftpep->next) { - for (tpep = saved_term_procs.start; tpep; tpep = tpep->next) - ERTS_PROCS_ASSERT(ftpep != tpep); - } - } -} - -#endif - -#if ERTS_PROCESSES_BIF_DEBUGLEVEL != 0 - -static void -debug_processes_assert_error(char* expr, char* file, int line) -{ - fflush(stdout); - erts_fprintf(stderr, "%s:%d: Assertion failed: %s\n", file, line, expr); - fflush(stderr); - abort(); -} - -#endif - -/* *\ - * End of the processes/0 BIF implementation. * -\* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ - /* * A nice system halt closing all open port goes as follows: * 1) This function schedules the aux work ERTS_SSI_AUX_WORK_REAP_PORTS @@ -10326,7 +12229,27 @@ void erl_halt(int code) if (-1 == erts_smp_atomic32_cmpxchg_acqb(&erts_halt_progress, erts_no_schedulers, -1)) { +#ifdef ERTS_DIRTY_SCHEDULERS + ERTS_DIRTY_CPU_RUNQ->halt_in_progress = 1; + ERTS_DIRTY_IO_RUNQ->halt_in_progress = 1; +#endif erts_halt_code = code; notify_reap_ports_relb(); } } + +#if defined(ERTS_SMP) && defined(ERTS_ENABLE_LOCK_CHECK) +int +erts_dbg_check_halloc_lock(Process *p) +{ + if (ERTS_PROC_LOCK_MAIN & erts_proc_lc_my_proc_locks(p)) + return 1; + if (p->common.id == ERTS_INVALID_PID) + return 1; + if (p->scheduler_data && p == p->scheduler_data->match_pseudo_process) + return 1; + if (erts_thr_progress_is_blocking()) + return 1; + return 0; +} +#endif diff --git a/erts/emulator/beam/erl_process.h b/erts/emulator/beam/erl_process.h index 7c481a91dd..ed6dadbffa 100644 --- a/erts/emulator/beam/erl_process.h +++ b/erts/emulator/beam/erl_process.h @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 1996-2012. All Rights Reserved. + * Copyright Ericsson AB 1996-2014. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -42,6 +42,9 @@ typedef struct process Process; #include "erl_process_lock.h" /* Only pull out important types... */ #undef ERTS_PROCESS_LOCK_ONLY_PROC_LOCK_TYPE__ +#define ERL_PORT_GET_PORT_TYPE_ONLY__ +#include "erl_port.h" +#undef ERL_PORT_GET_PORT_TYPE_ONLY__ #include "erl_vm.h" #include "erl_smp.h" #include "erl_message.h" @@ -66,11 +69,17 @@ typedef struct process Process; #undef ERL_THR_PROGRESS_TSD_TYPE_ONLY struct ErtsNodesMonitor_; -struct port; + +#define ERTS_HAVE_SCHED_UTIL_BALANCING_SUPPORT_OPT 0 +#define ERTS_HAVE_SCHED_UTIL_BALANCING_SUPPORT 0 #define ERTS_MAX_NO_OF_SCHEDULERS 1024 +#ifdef ERTS_DIRTY_SCHEDULERS +#define ERTS_MAX_NO_OF_DIRTY_CPU_SCHEDULERS ERTS_MAX_NO_OF_SCHEDULERS +#define ERTS_MAX_NO_OF_DIRTY_IO_SCHEDULERS ERTS_MAX_NO_OF_SCHEDULERS +#endif -#define ERTS_DEFAULT_MAX_PROCESSES (1 << 15) +#define ERTS_DEFAULT_MAX_PROCESSES (1 << 18) #define ERTS_HEAP_ALLOC(Type, Size) \ erts_alloc((Type), (Size)) @@ -96,7 +105,12 @@ struct saved_calls { extern Export exp_send, exp_receive, exp_timeout; extern int erts_sched_compact_load; +extern int erts_sched_balance_util; extern Uint erts_no_schedulers; +#ifdef ERTS_DIRTY_SCHEDULERS +extern Uint erts_no_dirty_cpu_schedulers; +extern Uint erts_no_dirty_io_schedulers; +#endif extern Uint erts_no_run_queues; extern int erts_sched_thread_suggested_stack_size; #define ERTS_SCHED_THREAD_MIN_STACK_SIZE 4 /* Kilo words */ @@ -112,28 +126,29 @@ extern int erts_sched_thread_suggested_stack_size; #define PRIORITY_NORMAL 2 #define PRIORITY_LOW 3 #define ERTS_NO_PROC_PRIO_LEVELS 4 +#define ERTS_NO_PROC_PRIO_QUEUES 3 #define ERTS_PORT_PRIO_LEVEL ERTS_NO_PROC_PRIO_LEVELS +#define ERTS_NO_PRIO_LEVELS (ERTS_NO_PROC_PRIO_LEVELS + 1) #define ERTS_RUNQ_FLGS_PROCS_QMASK \ ((((Uint32) 1) << ERTS_NO_PROC_PRIO_LEVELS) - 1) -#define ERTS_NO_PRIO_LEVELS (ERTS_NO_PROC_PRIO_LEVELS + 1) -#define ERTS_RUNQ_FLGS_MIGRATE_QMASK \ +#define ERTS_RUNQ_FLGS_QMASK \ ((((Uint32) 1) << ERTS_NO_PRIO_LEVELS) - 1) #define ERTS_RUNQ_FLGS_EMIGRATE_SHFT \ - ERTS_NO_PROC_PRIO_LEVELS + ERTS_NO_PRIO_LEVELS #define ERTS_RUNQ_FLGS_IMMIGRATE_SHFT \ (ERTS_RUNQ_FLGS_EMIGRATE_SHFT + ERTS_NO_PRIO_LEVELS) #define ERTS_RUNQ_FLGS_EVACUATE_SHFT \ (ERTS_RUNQ_FLGS_IMMIGRATE_SHFT + ERTS_NO_PRIO_LEVELS) #define ERTS_RUNQ_FLGS_EMIGRATE_QMASK \ - (ERTS_RUNQ_FLGS_MIGRATE_QMASK << ERTS_RUNQ_FLGS_EMIGRATE_SHFT) + (ERTS_RUNQ_FLGS_QMASK << ERTS_RUNQ_FLGS_EMIGRATE_SHFT) #define ERTS_RUNQ_FLGS_IMMIGRATE_QMASK \ - (ERTS_RUNQ_FLGS_MIGRATE_QMASK << ERTS_RUNQ_FLGS_IMMIGRATE_SHFT) + (ERTS_RUNQ_FLGS_QMASK << ERTS_RUNQ_FLGS_IMMIGRATE_SHFT) #define ERTS_RUNQ_FLGS_EVACUATE_QMASK \ - (ERTS_RUNQ_FLGS_MIGRATE_QMASK << ERTS_RUNQ_FLGS_EVACUATE_SHFT) + (ERTS_RUNQ_FLGS_QMASK << ERTS_RUNQ_FLGS_EVACUATE_SHFT) #define ERTS_RUNQ_FLG_BASE2 \ (ERTS_RUNQ_FLGS_EVACUATE_SHFT + ERTS_NO_PRIO_LEVELS) @@ -148,14 +163,18 @@ extern int erts_sched_thread_suggested_stack_size; (((Uint32) 1) << (ERTS_RUNQ_FLG_BASE2 + 3)) #define ERTS_RUNQ_FLG_INACTIVE \ (((Uint32) 1) << (ERTS_RUNQ_FLG_BASE2 + 4)) +#define ERTS_RUNQ_FLG_NONEMPTY \ + (((Uint32) 1) << (ERTS_RUNQ_FLG_BASE2 + 5)) +#define ERTS_RUNQ_FLG_PROTECTED \ + (((Uint32) 1) << (ERTS_RUNQ_FLG_BASE2 + 6)) #define ERTS_RUNQ_FLGS_MIGRATION_QMASKS \ (ERTS_RUNQ_FLGS_EMIGRATE_QMASK \ | ERTS_RUNQ_FLGS_IMMIGRATE_QMASK \ | ERTS_RUNQ_FLGS_EVACUATE_QMASK) + #define ERTS_RUNQ_FLGS_MIGRATION_INFO \ - (ERTS_RUNQ_FLGS_MIGRATION_QMASKS \ - | ERTS_RUNQ_FLG_INACTIVE \ + (ERTS_RUNQ_FLG_INACTIVE \ | ERTS_RUNQ_FLG_OUT_OF_WORK \ | ERTS_RUNQ_FLG_HALFTIME_OUT_OF_WORK) @@ -186,34 +205,28 @@ extern int erts_sched_thread_suggested_stack_size; #define ERTS_UNSET_RUNQ_FLG_EVACUATE(FLGS, PRIO) \ ((FLGS) &= ~ERTS_RUNQ_FLG_EVACUATE((PRIO))) -#define ERTS_RUNQ_IFLG_SUSPENDED (((erts_aint32_t) 1) << 0) -#define ERTS_RUNQ_IFLG_NONEMPTY (((erts_aint32_t) 1) << 1) - - -#ifdef DEBUG -# if defined(ARCH_64) && !HALFWORD_HEAP -# define ERTS_DBG_SET_INVALID_RUNQP(RQP, N) \ - (*((char **) &(RQP)) = (char *) (0xdeadbeefdead0003 | ((N) << 4))) -# define ERTS_DBG_VERIFY_VALID_RUNQP(RQP) \ -do { \ - ASSERT((RQP) != NULL); \ - ASSERT(((((Uint) (RQP)) & ((Uint) 0x3))) == ((Uint) 0)); \ - ASSERT((((Uint) (RQP)) & ~((Uint) 0xffff)) != ((Uint) 0xdeadbeefdead0000));\ -} while (0) -# else -# define ERTS_DBG_SET_INVALID_RUNQP(RQP, N) \ - (*((char **) &(RQP)) = (char *) (0xdead0003 | ((N) << 4))) -# define ERTS_DBG_VERIFY_VALID_RUNQP(RQP) \ -do { \ - ASSERT((RQP) != NULL); \ - ASSERT(((((UWord) (RQP)) & ((UWord) 1))) == ((UWord) 0)); \ - ASSERT((((UWord) (RQP)) & ~((UWord) 0xffff)) != ((UWord) 0xdead0000)); \ -} while (0) -# endif -#else -# define ERTS_DBG_SET_INVALID_RUNQP(RQP, N) -# define ERTS_DBG_VERIFY_VALID_RUNQP(RQP) -#endif +#define ERTS_RUNQ_FLGS_INIT(RQ, INIT) \ + erts_smp_atomic32_init_nob(&(RQ)->flags, (erts_aint32_t) (INIT)) +#define ERTS_RUNQ_FLGS_SET(RQ, FLGS) \ + ((Uint32) erts_smp_atomic32_read_bor_relb(&(RQ)->flags, \ + (erts_aint32_t) (FLGS))) +#define ERTS_RUNQ_FLGS_BSET(RQ, MSK, FLGS) \ + ((Uint32) erts_smp_atomic32_read_bset_relb(&(RQ)->flags, \ + (erts_aint32_t) (MSK), \ + (erts_aint32_t) (FLGS))) +#define ERTS_RUNQ_FLGS_UNSET(RQ, FLGS) \ + ((Uint32) erts_smp_atomic32_read_band_relb(&(RQ)->flags, \ + (erts_aint32_t) ~(FLGS))) +#define ERTS_RUNQ_FLGS_GET(RQ) \ + ((Uint32) erts_smp_atomic32_read_acqb(&(RQ)->flags)) +#define ERTS_RUNQ_FLGS_GET_NOB(RQ) \ + ((Uint32) erts_smp_atomic32_read_nob(&(RQ)->flags)) +#define ERTS_RUNQ_FLGS_GET_MB(RQ) \ + ((Uint32) erts_smp_atomic32_read_mb(&(RQ)->flags)) +#define ERTS_RUNQ_FLGS_READ_BSET(RQ, MSK, FLGS) \ + ((Uint32) erts_smp_atomic32_read_bset_relb(&(RQ)->flags, \ + (erts_aint32_t) (MSK), \ + (erts_aint32_t) (FLGS))) typedef enum { ERTS_SCHDLR_SSPND_DONE_MSCHED_BLOCKED, @@ -258,17 +271,25 @@ typedef enum { #define ERTS_SSI_AUX_WORK_DD_THR_PRGR (((erts_aint32_t) 1) << 2) #define ERTS_SSI_AUX_WORK_FIX_ALLOC_DEALLOC (((erts_aint32_t) 1) << 3) #define ERTS_SSI_AUX_WORK_FIX_ALLOC_LOWER_LIM (((erts_aint32_t) 1) << 4) -#define ERTS_SSI_AUX_WORK_ASYNC_READY (((erts_aint32_t) 1) << 5) -#define ERTS_SSI_AUX_WORK_ASYNC_READY_CLEAN (((erts_aint32_t) 1) << 6) -#define ERTS_SSI_AUX_WORK_MISC_THR_PRGR (((erts_aint32_t) 1) << 7) -#define ERTS_SSI_AUX_WORK_MISC (((erts_aint32_t) 1) << 8) -#define ERTS_SSI_AUX_WORK_CHECK_CHILDREN (((erts_aint32_t) 1) << 9) -#define ERTS_SSI_AUX_WORK_SET_TMO (((erts_aint32_t) 1) << 10) -#define ERTS_SSI_AUX_WORK_MSEG_CACHE_CHECK (((erts_aint32_t) 1) << 11) -#define ERTS_SSI_AUX_WORK_REAP_PORTS (((erts_aint32_t) 1) << 12) +#define ERTS_SSI_AUX_WORK_THR_PRGR_LATER_OP (((erts_aint32_t) 1) << 5) +#define ERTS_SSI_AUX_WORK_ASYNC_READY (((erts_aint32_t) 1) << 6) +#define ERTS_SSI_AUX_WORK_ASYNC_READY_CLEAN (((erts_aint32_t) 1) << 7) +#define ERTS_SSI_AUX_WORK_MISC_THR_PRGR (((erts_aint32_t) 1) << 8) +#define ERTS_SSI_AUX_WORK_MISC (((erts_aint32_t) 1) << 9) +#define ERTS_SSI_AUX_WORK_CHECK_CHILDREN (((erts_aint32_t) 1) << 10) +#define ERTS_SSI_AUX_WORK_SET_TMO (((erts_aint32_t) 1) << 11) +#define ERTS_SSI_AUX_WORK_MSEG_CACHE_CHECK (((erts_aint32_t) 1) << 12) +#define ERTS_SSI_AUX_WORK_REAP_PORTS (((erts_aint32_t) 1) << 13) typedef struct ErtsSchedulerSleepInfo_ ErtsSchedulerSleepInfo; +#ifdef ERTS_DIRTY_SCHEDULERS +typedef struct { + erts_smp_spinlock_t lock; + ErtsSchedulerSleepInfo *list; +} ErtsSchedulerSleepList; +#endif + struct ErtsSchedulerSleepInfo_ { #ifdef ERTS_SMP ErtsSchedulerSleepInfo *next; @@ -291,8 +312,9 @@ struct ErtsSchedulerSleepInfo_ { typedef struct ErtsProcList_ ErtsProcList; struct ErtsProcList_ { Eterm pid; - SysTimeval started; + Uint64 started_interval; ErtsProcList* next; + ErtsProcList* prev; }; typedef struct ErtsMiscOpList_ ErtsMiscOpList; @@ -312,41 +334,95 @@ typedef struct ErtsSchedulerData_ ErtsSchedulerData; typedef struct ErtsRunQueue_ ErtsRunQueue; typedef struct { - int len; - int max_len; + erts_smp_atomic32_t len; + erts_aint32_t max_len; int reds; +} ErtsRunQueueInfo; + + +#ifdef HAVE_GETHRTIME +# undef ERTS_HAVE_SCHED_UTIL_BALANCING_SUPPORT_OPT +# define ERTS_HAVE_SCHED_UTIL_BALANCING_SUPPORT_OPT 1 +#endif + +#ifdef ERTS_SMP + +#undef ERTS_HAVE_SCHED_UTIL_BALANCING_SUPPORT +#define ERTS_HAVE_SCHED_UTIL_BALANCING_SUPPORT ERTS_HAVE_SCHED_UTIL_BALANCING_SUPPORT_OPT + +#ifdef ARCH_64 +typedef erts_atomic_t ErtsAtomicSchedTime; +#elif defined(ARCH_32) +typedef erts_dw_atomic_t ErtsAtomicSchedTime; +#else +# error :-/ +#endif + +#if ERTS_HAVE_SCHED_UTIL_BALANCING_SUPPORT +typedef struct { + ErtsAtomicSchedTime last; + struct { + Uint64 short_interval; + Uint64 long_interval; + } worktime; + int is_working; +} ErtsRunQueueSchedUtil; +#endif + +typedef struct { +#if ERTS_HAVE_SCHED_UTIL_BALANCING_SUPPORT + int sched_util; +#endif + Uint32 flags; + ErtsRunQueue *misc_evac_runq; struct { struct { int this; int other; } limit; ErtsRunQueue *runq; - } migrate; -} ErtsRunQueueInfo; + Uint32 flags; + } prio[ERTS_NO_PRIO_LEVELS]; +} ErtsMigrationPath; + +typedef struct ErtsMigrationPaths_ ErtsMigrationPaths; + +struct ErtsMigrationPaths_ { + void *block; + ErtsMigrationPaths *next; + ErtsThrPrgrVal thr_prgr; + ErtsMigrationPath mpath[1]; +}; + +#endif /* ERTS_SMP */ struct ErtsRunQueue_ { int ix; - erts_smp_atomic32_t info_flags; erts_smp_mtx_t mtx; erts_smp_cnd_t cnd; +#ifdef ERTS_DIRTY_SCHEDULERS +#ifdef ERTS_SMP + ErtsSchedulerSleepList sleepers; +#endif +#endif + ErtsSchedulerData *scheduler; int waiting; /* < 0 in sys schedule; > 0 on cnd variable */ int woken; - Uint32 flags; + erts_smp_atomic32_t flags; int check_balance_reds; int full_reds_history_sum; int full_reds_history[ERTS_FULL_REDS_HISTORY_SIZE]; int out_of_work_count; - int max_len; - int len; + erts_aint32_t max_len; + erts_aint32_t len; int wakeup_other; int wakeup_other_reds; int halt_in_progress; struct { - int len; ErtsProcList *pending_exiters; Uint context_switches; Uint reductions; @@ -361,16 +437,23 @@ struct ErtsRunQueue_ { struct { ErtsMiscOpList *start; ErtsMiscOpList *end; - ErtsRunQueue *evac_runq; + erts_smp_atomic_t evac_runq; } misc; struct { ErtsRunQueueInfo info; - struct port *start; - struct port *end; + Port *start; + Port *end; } ports; +#if ERTS_HAVE_SCHED_UTIL_BALANCING_SUPPORT + ErtsRunQueueSchedUtil sched_util; +#endif }; +#ifdef ERTS_SMP +extern long erts_runq_supervision_interval; +#endif + typedef union { ErtsRunQueue runq; char align[ERTS_ALC_CACHE_LINE_ALIGN_SIZE(sizeof(ErtsRunQueue))]; @@ -381,7 +464,7 @@ extern ErtsAlignedRunQueue *erts_aligned_run_queues; #define ERTS_PROC_REDUCTIONS_EXECUTED(RQ, PRIO, REDS, AREDS) \ do { \ (RQ)->procs.reductions += (AREDS); \ - (RQ)->procs.prio_info[p->prio].reds += (REDS); \ + (RQ)->procs.prio_info[(PRIO)].reds += (REDS); \ (RQ)->check_balance_reds -= (REDS); \ (RQ)->wakeup_other_reds += (AREDS); \ } while (0) @@ -394,6 +477,7 @@ do { \ } while (0) typedef struct { + int need; /* "+sbu true" or scheduler_wall_time enabled */ int enabled; Uint64 start; struct { @@ -404,6 +488,11 @@ typedef struct { } ErtsSchedWallTime; typedef struct { + Uint64 reclaimed; + Uint64 garbage_cols; +} ErtsGCInfo; + +typedef struct { int sched; erts_aint32_t aux_work; } ErtsDelayedAuxWorkWakeupJob; @@ -414,6 +503,7 @@ typedef struct { ErtsSchedulerSleepInfo *ssi; #ifdef ERTS_SMP ErtsThrPrgrVal current_thr_prgr; + ErtsThrPrgrVal latest_wakeup; #endif struct { int ix; @@ -427,6 +517,12 @@ typedef struct { void (*completed_callback)(void *); void (*completed_arg)(void *); } dd; + struct { + ErtsThrPrgrVal thr_prgr; + UWord size; + ErtsThrPrgrLaterOp *first; + ErtsThrPrgrLaterOp *last; + } later_op; #endif #ifdef ERTS_USE_ASYNC_READY_Q struct { @@ -447,6 +543,21 @@ typedef struct { #endif } ErtsAuxWorkData; +#ifdef ERTS_DIRTY_SCHEDULERS +typedef enum { + ERTS_DIRTY_CPU_SCHEDULER, + ERTS_DIRTY_IO_SCHEDULER +} ErtsDirtySchedulerType; + +typedef union { + struct { + ErtsDirtySchedulerType type: 1; + unsigned num: 31; + } s; + Uint no; +} ErtsDirtySchedId; +#endif + struct ErtsSchedulerData_ { /* * Keep X registers first (so we get as many low @@ -467,13 +578,15 @@ struct ErtsSchedulerData_ { Eterm tmp_heap[TMP_HEAP_SIZE]; int num_tmp_heap_used; Eterm beam_emu_tmp_heap[BEAM_EMU_TMP_HEAP_SIZE]; - Eterm cmp_tmp_heap[CMP_TMP_HEAP_SIZE]; Eterm erl_arith_tmp_heap[ERL_ARITH_TMP_HEAP_SIZE]; #endif ErtsSchedulerSleepInfo *ssi; Process *current_process; - Uint no; /* Scheduler number */ - struct port *current_port; + Uint no; /* Scheduler number for normal schedulers */ +#ifdef ERTS_DIRTY_SCHEDULERS + ErtsDirtySchedId dirty_no; /* Scheduler number for dirty schedulers */ +#endif + Port *current_port; ErtsRunQueue *run_queue; int virtual_reds; int cpu_id; /* >= 0 when bound */ @@ -484,6 +597,8 @@ struct ErtsSchedulerData_ { Uint64 reductions; ErtsSchedWallTime sched_wall_time; + ErtsGCInfo gc_info; + ErtsPortTaskHandle nosuspend_port_task_handle; #ifdef ERTS_DO_VERIFY_UNUSED_TEMP_ALLOC erts_alloc_verify_func_t verify_unused_temp_alloc; @@ -497,11 +612,116 @@ typedef union { } ErtsAlignedSchedulerData; extern ErtsAlignedSchedulerData *erts_aligned_scheduler_data; +#ifdef ERTS_DIRTY_SCHEDULERS +extern ErtsAlignedSchedulerData *erts_aligned_dirty_cpu_scheduler_data; +extern ErtsAlignedSchedulerData *erts_aligned_dirty_io_scheduler_data; +#endif #ifndef ERTS_SMP extern ErtsSchedulerData *erts_scheduler_data; #endif +#ifdef ERTS_SCHED_FAIR +#define ERTS_SCHED_FAIR_YIELD() ETHR_YIELD() +#else +#define ERTS_SCHED_FAIR 0 +#define ERTS_SCHED_FAIR_YIELD() +#endif + +#if defined(ERTS_SMP) && defined(ERTS_ENABLE_LOCK_CHECK) +int erts_smp_lc_runq_is_locked(ErtsRunQueue *); +#endif + +#ifdef ERTS_INCLUDE_SCHEDULER_INTERNALS + +#ifdef ERTS_SMP +void erts_empty_runq(ErtsRunQueue *rq); +void erts_non_empty_runq(ErtsRunQueue *rq); +#endif + + +/* + * Run queue locked during modifications. We use atomic ops since + * other threads peek at values without run queue lock. + */ + +ERTS_GLB_INLINE void erts_smp_inc_runq_len(ErtsRunQueue *rq, ErtsRunQueueInfo *rqi, int prio); +ERTS_GLB_INLINE void erts_smp_dec_runq_len(ErtsRunQueue *rq, ErtsRunQueueInfo *rqi, int prio); +ERTS_GLB_INLINE void erts_smp_reset_max_len(ErtsRunQueue *rq, ErtsRunQueueInfo *rqi); + +#if ERTS_GLB_INLINE_INCL_FUNC_DEF + +ERTS_GLB_INLINE void +erts_smp_inc_runq_len(ErtsRunQueue *rq, ErtsRunQueueInfo *rqi, int prio) +{ + erts_aint32_t len; + + ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(rq)); + + len = erts_smp_atomic32_read_nob(&rqi->len); + ASSERT(len >= 0); + if (len == 0) { + ASSERT((erts_smp_atomic32_read_nob(&rq->flags) + & ((erts_aint32_t) (1 << prio))) == 0); + erts_smp_atomic32_read_bor_nob(&rq->flags, + (erts_aint32_t) (1 << prio)); + } + len++; + if (rqi->max_len < len) + rqi->max_len = len; + + erts_smp_atomic32_set_relb(&rqi->len, len); + +#ifdef ERTS_SMP + if (rq->len == 0) + erts_non_empty_runq(rq); +#endif + rq->len++; + if (rq->max_len < rq->len) + rq->max_len = len; + ASSERT(rq->len > 0); +} + +ERTS_GLB_INLINE void +erts_smp_dec_runq_len(ErtsRunQueue *rq, ErtsRunQueueInfo *rqi, int prio) +{ + erts_aint32_t len; + + ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(rq)); + + len = erts_smp_atomic32_read_nob(&rqi->len); + len--; + ASSERT(len >= 0); + if (len == 0) { + ASSERT((erts_smp_atomic32_read_nob(&rq->flags) + & ((erts_aint32_t) (1 << prio)))); + erts_smp_atomic32_read_band_nob(&rq->flags, + ~((erts_aint32_t) (1 << prio))); + } + erts_smp_atomic32_set_relb(&rqi->len, len); + + rq->len--; + ASSERT(rq->len >= 0); +} + +ERTS_GLB_INLINE void +erts_smp_reset_max_len(ErtsRunQueue *rq, ErtsRunQueueInfo *rqi) +{ + erts_aint32_t len; + + ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(rq)); + + len = erts_smp_atomic32_read_nob(&rqi->len); + ASSERT(rqi->max_len >= len); + rqi->max_len = len; +} + +#endif /* ERTS_GLB_INLINE_INCL_FUNC_DEF */ + +#define RUNQ_READ_LEN(X) erts_smp_atomic32_read_nob((X)) + +#endif /* ERTS_INCLUDE_SCHEDULER_INTERNALS */ + /* * Process Specific Data. * @@ -513,8 +733,14 @@ extern ErtsSchedulerData *erts_scheduler_data; #define ERTS_PSD_SCHED_ID 2 #define ERTS_PSD_DIST_ENTRY 3 #define ERTS_PSD_CALL_TIME_BP 4 +#define ERTS_PSD_DELAYED_GC_TASK_QS 5 +#ifdef ERTS_DIRTY_SCHEDULERS +#define ERTS_PSD_DIRTY_SCHED_TRAP_EXPORT 6 -#define ERTS_PSD_SIZE 5 +#define ERTS_PSD_SIZE 7 +#else +#define ERTS_PSD_SIZE 6 +#endif typedef struct { void *data[ERTS_PSD_SIZE]; @@ -538,6 +764,14 @@ typedef struct { #define ERTS_PSD_CALL_TIME_BP_GET_LOCKS ERTS_PROC_LOCK_MAIN #define ERTS_PSD_CALL_TIME_BP_SET_LOCKS ERTS_PROC_LOCK_MAIN +#define ERTS_PSD_DELAYED_GC_TASK_QS_GET_LOCKS ERTS_PROC_LOCK_MAIN +#define ERTS_PSD_DELAYED_GC_TASK_QS_SET_LOCKS ERTS_PROC_LOCK_MAIN + +#ifdef ERTS_DIRTY_SCHEDULERS +#define ERTS_PSD_DIRTY_SCHED_TRAP_EXPORT_GET_LOCKS ERTS_PROC_LOCK_MAIN +#define ERTS_PSD_DIRTY_SCHED_TRAP_EXPORT_SET_LOCKS ERTS_PROC_LOCK_MAIN +#endif + typedef struct { ErtsProcLocks get_locks; ErtsProcLocks set_locks; @@ -570,6 +804,9 @@ typedef struct { ErlHeapFragment *bp; } ErtsPendExit; +typedef struct ErtsProcSysTask_ ErtsProcSysTask; +typedef struct ErtsProcSysTaskQs_ ErtsProcSysTaskQs; + #ifdef ERTS_SMP typedef struct ErtsPendingSuspend_ ErtsPendingSuspend; @@ -585,6 +822,7 @@ struct ErtsPendingSuspend_ { #endif + /* Defines to ease the change of memory architecture */ # define HEAP_START(p) (p)->heap # define HEAP_TOP(p) (p)->htop @@ -614,6 +852,8 @@ struct ErtsPendingSuspend_ { # define BIN_OLD_VHEAP(p) (p)->bin_old_vheap struct process { + ErtsPTabElementCommon common; /* *Need* to be first in struct */ + /* All fields in the PCB that differs between different heap * architectures, have been moved to the end of this struct to * make sure that as few offsets as possible differ. Different @@ -656,17 +896,9 @@ struct process { * Number of reductions left to execute. * Only valid for the current process. */ - Uint32 status; /* process STATE */ - Uint32 gcstatus; /* process gc STATE */ - Uint32 rstatus; /* process resume STATE */ Uint32 rcount; /* suspend count */ - Eterm id; /* The pid of this process */ - int prio; /* Priority of process */ - int skipped; /* Times a low prio process has been rescheduled */ + int schedule_count; /* Times left to reschedule a low prio process */ Uint reds; /* No of reductions for this process */ - Eterm tracer_proc; /* If proc is traced, this is the tracer - (can NOT be boxed) */ - Uint trace_flags; /* Trace flags (used to be in flags) */ Eterm group_leader; /* Pid in charge (can be boxed) */ Uint flags; /* Trap exit, etc (no trace flags anymore) */ @@ -675,11 +907,6 @@ struct process { Eterm ftrace; /* Latest exception stack trace dump */ Process *next; /* Pointer to next process in run queue */ - Process *prev; /* Pointer to prev process in run queue */ - - struct reg_proc *reg; /* NULL iff not registered */ - ErtsLink *nlinks; - ErtsMonitor *monitors; /* The process monitors, both ends */ struct ErtsNodesMonitor_ *nodes_monitors; @@ -689,7 +916,10 @@ struct process { ErlMessageQueue msg; /* Message queue */ - ErtsBifTimer *bif_timers; /* Bif timers aiming at this process */ + union { + ErtsBifTimer *bif_timers; /* Bif timers aiming at this process */ + void *terminate; + } u; ProcDict *dictionary; /* Process dictionary, may be NULL */ @@ -713,8 +943,7 @@ struct process { * Information mainly for post-mortem use (erl crash dump). */ Eterm parent; /* Pid of process that created this process. */ - SysTimeval started; /* Time when started. */ - + erts_approx_time_t approx_started; /* Time when started. */ /* This is the place, where all fields that differs between memory * architectures, have gone to. @@ -736,28 +965,18 @@ struct process { Uint64 bin_old_vheap_sz; /* Virtual old heap block size for binaries */ Uint64 bin_old_vheap; /* Virtual old heap size for binaries */ - union { -#ifdef ERTS_SMP - ErtsSmpPTimer *ptimer; -#else - ErlTimer tm; /* Timer entry */ -#endif - void *exit_data; /* Misc data referred during termination */ - } u; + ErtsProcSysTaskQs *sys_task_qs; - ErtsRunQueue *bound_runq; + erts_smp_atomic32_t state; /* Process state flags (see ERTS_PSFLG_*) */ #ifdef ERTS_SMP + ErlMessageInQueue msg_inq; + ErtsPendExit pending_exit; erts_proc_lock_t lock; ErtsSchedulerData *scheduler_data; - int is_exiting; - Uint32 runq_flags; - Uint32 status_flags; - ErlMessageInQueue msg_inq; Eterm suspendee; ErtsPendingSuspend *pending_suspenders; - ErtsPendExit pending_exit; - ErtsRunQueue *run_queue; + erts_smp_atomic_t run_queue; #ifdef HIPE struct hipe_process_state_smp hipe_smp; #endif @@ -782,6 +1001,8 @@ struct process { #endif }; +extern const Process erts_invalid_process; + #ifdef CHECK_FOR_HOLES # define INIT_HOLE_CHECK(p) \ do { \ @@ -811,6 +1032,78 @@ void erts_check_for_holes(Process* p); #define SEQ_TRACE_TOKEN(p) ((p)->seq_trace_token) +#if ERTS_NO_PROC_PRIO_LEVELS > 4 +# error "Need to increase ERTS_PSFLG_PRIO_SHIFT" +#endif + +#define ERTS_PSFLGS_PRIO_BITS 2 +#define ERTS_PSFLGS_PRIO_MASK \ + ((((erts_aint32_t) 1) << ERTS_PSFLGS_PRIO_BITS) - 1) + +#define ERTS_PSFLGS_ACT_PRIO_OFFSET (0*ERTS_PSFLGS_PRIO_BITS) +#define ERTS_PSFLGS_USR_PRIO_OFFSET (1*ERTS_PSFLGS_PRIO_BITS) +#define ERTS_PSFLGS_PRQ_PRIO_OFFSET (2*ERTS_PSFLGS_PRIO_BITS) +#define ERTS_PSFLGS_ZERO_BIT_OFFSET (3*ERTS_PSFLGS_PRIO_BITS) + +#define ERTS_PSFLGS_QMASK_BITS 4 +#define ERTS_PSFLGS_QMASK \ + ((((erts_aint32_t) 1) << ERTS_PSFLGS_QMASK_BITS) - 1) +#define ERTS_PSFLGS_IN_PRQ_MASK_OFFSET \ + ERTS_PSFLGS_ZERO_BIT_OFFSET + +#define ERTS_PSFLG_BIT(N) \ + (((erts_aint32_t) 1) << (ERTS_PSFLGS_ZERO_BIT_OFFSET + (N))) + +/* + * ACT_PRIO -> Active prio, i.e., currently active prio. This + * prio may be higher than user prio. + * USR_PRIO -> User prio. i.e., prio the user has set. + * PRQ_PRIO -> Prio queue prio, i.e., prio queue currently + * enqueued in. + */ +#define ERTS_PSFLGS_ACT_PRIO_MASK \ + (ERTS_PSFLGS_PRIO_MASK << ERTS_PSFLGS_ACT_PRIO_OFFSET) +#define ERTS_PSFLGS_USR_PRIO_MASK \ + (ERTS_PSFLGS_PRIO_MASK << ERTS_PSFLGS_USR_PRIO_OFFSET) +#define ERTS_PSFLGS_PRQ_PRIO_MASK \ + (ERTS_PSFLGS_PRIO_MASK << ERTS_PSFLGS_PRQ_PRIO_OFFSET) +#define ERTS_PSFLG_IN_PRQ_MAX ERTS_PSFLG_BIT(0) +#define ERTS_PSFLG_IN_PRQ_HIGH ERTS_PSFLG_BIT(1) +#define ERTS_PSFLG_IN_PRQ_NORMAL ERTS_PSFLG_BIT(2) +#define ERTS_PSFLG_IN_PRQ_LOW ERTS_PSFLG_BIT(3) +#define ERTS_PSFLG_FREE ERTS_PSFLG_BIT(4) +#define ERTS_PSFLG_EXITING ERTS_PSFLG_BIT(5) +#define ERTS_PSFLG_PENDING_EXIT ERTS_PSFLG_BIT(6) +#define ERTS_PSFLG_ACTIVE ERTS_PSFLG_BIT(7) +#define ERTS_PSFLG_IN_RUNQ ERTS_PSFLG_BIT(8) +#define ERTS_PSFLG_RUNNING ERTS_PSFLG_BIT(9) +#define ERTS_PSFLG_SUSPENDED ERTS_PSFLG_BIT(10) +#define ERTS_PSFLG_GC ERTS_PSFLG_BIT(11) +#define ERTS_PSFLG_BOUND ERTS_PSFLG_BIT(12) +#define ERTS_PSFLG_TRAP_EXIT ERTS_PSFLG_BIT(13) +#define ERTS_PSFLG_ACTIVE_SYS ERTS_PSFLG_BIT(14) +#define ERTS_PSFLG_RUNNING_SYS ERTS_PSFLG_BIT(15) +#define ERTS_PSFLG_PROXY ERTS_PSFLG_BIT(16) +#define ERTS_PSFLG_DELAYED_SYS ERTS_PSFLG_BIT(17) +#ifdef ERTS_DIRTY_SCHEDULERS +#define ERTS_PSFLG_DIRTY_CPU_PROC ERTS_PSFLG_BIT(18) +#define ERTS_PSFLG_DIRTY_IO_PROC ERTS_PSFLG_BIT(19) +#define ERTS_PSFLG_DIRTY_CPU_PROC_IN_Q ERTS_PSFLG_BIT(20) +#define ERTS_PSFLG_DIRTY_IO_PROC_IN_Q ERTS_PSFLG_BIT(21) +#endif + +#define ERTS_PSFLGS_IN_PRQ_MASK (ERTS_PSFLG_IN_PRQ_MAX \ + | ERTS_PSFLG_IN_PRQ_HIGH \ + | ERTS_PSFLG_IN_PRQ_NORMAL \ + | ERTS_PSFLG_IN_PRQ_LOW) + +#define ERTS_PSFLGS_GET_ACT_PRIO(PSFLGS) \ + (((PSFLGS) >> ERTS_PSFLGS_ACT_PRIO_OFFSET) & ERTS_PSFLGS_PRIO_MASK) +#define ERTS_PSFLGS_GET_USR_PRIO(PSFLGS) \ + (((PSFLGS) >> ERTS_PSFLGS_USR_PRIO_OFFSET) & ERTS_PSFLGS_PRIO_MASK) +#define ERTS_PSFLGS_GET_PRQ_PRIO(PSFLGS) \ + (((PSFLGS) >> ERTS_PSFLGS_USR_PRIO_OFFSET) & ERTS_PSFLGS_PRIO_MASK) + /* The sequential tracing token is a tuple of size 5: * * {Flags, Label, Serial, Sender} @@ -883,9 +1176,6 @@ Eterm* erts_heap_alloc(Process* p, Uint need, Uint xtra); Eterm* erts_set_hole_marker(Eterm* ptr, Uint sz); #endif -extern Process** process_tab; -extern Uint erts_max_processes; -extern Uint erts_process_tab_index_mask; extern Uint erts_default_process_flags; extern erts_smp_rwmtx_t erts_cpu_bind_rwmtx; /* If any of the erts_system_monitor_* variables are set (enabled), @@ -894,6 +1184,7 @@ extern erts_smp_rwmtx_t erts_cpu_bind_rwmtx; */ extern Eterm erts_system_monitor; extern Uint erts_system_monitor_long_gc; +extern Uint erts_system_monitor_long_schedule; extern Uint erts_system_monitor_large_heap; struct erts_system_monitor_flags_t { unsigned int busy_port : 1; @@ -914,16 +1205,8 @@ struct erts_system_profile_flags_t { }; extern struct erts_system_profile_flags_t erts_system_profile_flags; -#define INVALID_PID(p, pid) ((p) == NULL \ - || (p)->id != (pid) \ - || (p)->status == P_EXITING) - -#define IS_TRACED(p) ( (p)->tracer_proc != NIL ) -#define ARE_TRACE_FLAGS_ON(p,tf) ( ((p)->trace_flags & (tf|F_SENSITIVE)) == (tf) ) -#define IS_TRACED_FL(p,tf) ( IS_TRACED(p) && ARE_TRACE_FLAGS_ON(p,tf) ) - /* process flags */ -#define F_TRAPEXIT (1 << 0) +#define F_HIBERNATE_SCHED (1 << 0) /* Schedule out after hibernate op */ #define F_INSLPQUEUE (1 << 1) /* Set if in timer queue */ #define F_TIMO (1 << 2) /* Set if timeout */ #define F_HEAP_GROW (1 << 3) @@ -934,7 +1217,7 @@ extern struct erts_system_profile_flags_t erts_system_profile_flags; #define F_HAVE_BLCKD_MSCHED (1 << 8) /* Process has blocked multi-scheduling */ #define F_P2PNR_RESCHED (1 << 9) /* Process has been rescheduled via erts_pid2proc_not_running() */ #define F_FORCE_GC (1 << 10) /* Force gc at process in-scheduling */ -#define F_HIBERNATE_SCHED (1 << 11) /* Schedule out after hibernate op */ +#define F_DISABLE_GC (1 << 11) /* Disable GC */ /* process trace_flags */ #define F_SENSITIVE (1 << 0) @@ -1001,67 +1284,10 @@ extern struct erts_system_profile_flags_t erts_system_profile_flags; #define DT_UTAG_FLAGS(P) ((P)->dt_utag_flags) #endif - -#ifdef ERTS_SMP -/* Status flags ... */ -#define ERTS_PROC_SFLG_PENDADD2SCHEDQ (((Uint32) 1) << 0) /* Pending - add to - schedule q */ -#define ERTS_PROC_SFLG_INRUNQ (((Uint32) 1) << 1) /* Process is - in run q */ -#define ERTS_PROC_SFLG_TRAPEXIT (((Uint32) 1) << 2) /* Process is - trapping - exit */ -#define ERTS_PROC_SFLG_RUNNING (((Uint32) 1) << 3) /* Process is - running */ -/* Scheduler flags in process struct... */ -#define ERTS_PROC_RUNQ_FLG_RUNNING (((Uint32) 1) << 0) /* Process is - running */ - -#endif - - -#ifdef ERTS_SMP -#define ERTS_PROC_IS_TRAPPING_EXITS(P) \ - (ERTS_SMP_LC_ASSERT(erts_proc_lc_my_proc_locks((P)) \ - & ERTS_PROC_LOCK_STATUS), \ - (P)->status_flags & ERTS_PROC_SFLG_TRAPEXIT) - -#define ERTS_PROC_SET_TRAP_EXIT(P) \ - (ERTS_SMP_LC_ASSERT(((ERTS_PROC_LOCK_MAIN|ERTS_PROC_LOCK_STATUS) \ - & erts_proc_lc_my_proc_locks((P))) \ - == (ERTS_PROC_LOCK_MAIN|ERTS_PROC_LOCK_STATUS)), \ - (P)->status_flags |= ERTS_PROC_SFLG_TRAPEXIT, \ - (P)->flags |= F_TRAPEXIT, \ - 1) - -#define ERTS_PROC_UNSET_TRAP_EXIT(P) \ - (ERTS_SMP_LC_ASSERT(((ERTS_PROC_LOCK_MAIN|ERTS_PROC_LOCK_STATUS) \ - & erts_proc_lc_my_proc_locks((P))) \ - == (ERTS_PROC_LOCK_MAIN|ERTS_PROC_LOCK_STATUS)), \ - (P)->status_flags &= ~ERTS_PROC_SFLG_TRAPEXIT, \ - (P)->flags &= ~F_TRAPEXIT, \ - 0) -#else -#define ERTS_PROC_IS_TRAPPING_EXITS(P) ((P)->flags & F_TRAPEXIT) -#define ERTS_PROC_SET_TRAP_EXIT(P) ((P)->flags |= F_TRAPEXIT, 1) -#define ERTS_PROC_UNSET_TRAP_EXIT(P) ((P)->flags &= ~F_TRAPEXIT, 0) -#endif - /* Option flags to erts_send_exit_signal() */ #define ERTS_XSIG_FLG_IGN_KILL (((Uint32) 1) << 0) #define ERTS_XSIG_FLG_NO_IGN_NORMAL (((Uint32) 1) << 1) - -/* Process status values */ -#define P_FREE 0 -#define P_RUNABLE 1 -#define P_WAITING 2 -#define P_RUNNING 3 -#define P_EXITING 4 -#define P_GARBING 5 -#define P_SUSPENDED 6 - #define CANCEL_TIMER(p) \ do { \ if ((p)->flags & (F_INSLPQUEUE)) \ @@ -1070,27 +1296,258 @@ extern struct erts_system_profile_flags_t erts_system_profile_flags; (p)->flags &= ~F_TIMO; \ } while (0) +#if defined(ERTS_DIRTY_SCHEDULERS) && defined(ERTS_SMP) +#define ERTS_NUM_DIRTY_RUNQS 2 +#else +#define ERTS_NUM_DIRTY_RUNQS 0 +#endif + #define ERTS_RUNQ_IX(IX) \ - (ASSERT_EXPR(0 <= (IX) && (IX) < erts_no_run_queues), \ + (ASSERT(0 <= (IX) && (IX) < erts_no_run_queues), \ + &erts_aligned_run_queues[(IX)].runq) +#ifdef ERTS_DIRTY_SCHEDULERS +#define ERTS_RUNQ_IX_IS_DIRTY(IX) \ + (-(ERTS_NUM_DIRTY_RUNQS) <= (IX) && (IX) < 0) +#define ERTS_DIRTY_RUNQ_IX(IX) \ + (ASSERT(ERTS_RUNQ_IX_IS_DIRTY(IX)), \ &erts_aligned_run_queues[(IX)].runq) +#define ERTS_DIRTY_CPU_RUNQ (&erts_aligned_run_queues[-1].runq) +#define ERTS_DIRTY_IO_RUNQ (&erts_aligned_run_queues[-2].runq) +#define ERTS_RUNQ_IS_DIRTY_CPU_RUNQ(RQ) ((RQ)->ix == -1) +#define ERTS_RUNQ_IS_DIRTY_IO_RUNQ(RQ) ((RQ)->ix == -2) +#else +#define ERTS_RUNQ_IX_IS_DIRTY(IX) 0 +#endif #define ERTS_SCHEDULER_IX(IX) \ - (ASSERT_EXPR(0 <= (IX) && (IX) < erts_no_schedulers), \ + (ASSERT(0 <= (IX) && (IX) < erts_no_schedulers), \ &erts_aligned_scheduler_data[(IX)].esd) +#ifdef ERTS_DIRTY_SCHEDULERS +#define ERTS_DIRTY_CPU_SCHEDULER_IX(IX) \ + (ASSERT(0 <= (IX) && (IX) < erts_no_dirty_cpu_schedulers), \ + &erts_aligned_dirty_cpu_scheduler_data[(IX)].esd) +#define ERTS_DIRTY_IO_SCHEDULER_IX(IX) \ + (ASSERT(0 <= (IX) && (IX) < erts_no_dirty_io_schedulers), \ + &erts_aligned_dirty_io_scheduler_data[(IX)].esd) +#define ERTS_DIRTY_SCHEDULER_NO(ESDP) \ + ((ESDP)->dirty_no.s.num) +#define ERTS_DIRTY_SCHEDULER_TYPE(ESDP) \ + ((ESDP)->dirty_no.s.type) +#ifdef ERTS_SMP +#define ERTS_SCHEDULER_IS_DIRTY(ESDP) \ + ((ESDP)->dirty_no.s.num != 0) +#define ERTS_SCHEDULER_IS_DIRTY_CPU(ESDP) \ + ((ESDP)->dirty_no.s.type == 0) +#define ERTS_SCHEDULER_IS_DIRTY_IO(ESDP) \ + ((ESDP)->dirty_no.s.type == 1) +#else +#define ERTS_SCHEDULER_IS_DIRTY(ESDP) 0 +#define ERTS_SCHEDULER_IS_DIRTY_CPU(ESDP) 0 +#define ERTS_SCHEDULER_IS_DIRTY_IO(ESDP) 0 +#endif +#else +#define ERTS_RUNQ_IX_IS_DIRTY(IX) 0 +#define ERTS_SCHEDULER_IS_DIRTY(ESDP) 0 +#define ERTS_SCHEDULER_IS_DIRTY_CPU(ESDP) 0 +#define ERTS_SCHEDULER_IS_DIRTY_IO(ESDP) 0 +#endif void erts_pre_init_process(void); void erts_late_init_process(void); void erts_early_init_scheduling(int); -void erts_init_scheduling(int, int); +void erts_init_scheduling(int, int +#ifdef ERTS_DIRTY_SCHEDULERS + , int, int, int +#endif + ); +int erts_set_gc_state(Process *c_p, int enable); Eterm erts_sched_wall_time_request(Process *c_p, int set, int enable); +Eterm erts_gc_info_request(Process *c_p); +Uint64 erts_get_proc_interval(void); +Uint64 erts_ensure_later_proc_interval(Uint64); +Uint64 erts_step_proc_interval(void); ErtsProcList *erts_proclist_create(Process *); void erts_proclist_destroy(ErtsProcList *); -int erts_proclist_same(ErtsProcList *, Process *); + +ERTS_GLB_INLINE int erts_proclist_same(ErtsProcList *, Process *); +ERTS_GLB_INLINE void erts_proclist_store_first(ErtsProcList **, ErtsProcList *); +ERTS_GLB_INLINE void erts_proclist_store_last(ErtsProcList **, ErtsProcList *); +ERTS_GLB_INLINE ErtsProcList *erts_proclist_peek_first(ErtsProcList *); +ERTS_GLB_INLINE ErtsProcList *erts_proclist_peek_last(ErtsProcList *); +ERTS_GLB_INLINE ErtsProcList *erts_proclist_peek_next(ErtsProcList *, ErtsProcList *); +ERTS_GLB_INLINE ErtsProcList *erts_proclist_peek_prev(ErtsProcList *, ErtsProcList *); +ERTS_GLB_INLINE ErtsProcList *erts_proclist_fetch_first(ErtsProcList **); +ERTS_GLB_INLINE ErtsProcList *erts_proclist_fetch_last(ErtsProcList **); +ERTS_GLB_INLINE int erts_proclist_fetch(ErtsProcList **, ErtsProcList **); +ERTS_GLB_INLINE void erts_proclist_remove(ErtsProcList **, ErtsProcList *); +ERTS_GLB_INLINE int erts_proclist_is_empty(ErtsProcList *); +ERTS_GLB_INLINE int erts_proclist_is_first(ErtsProcList *, ErtsProcList *); +ERTS_GLB_INLINE int erts_proclist_is_last(ErtsProcList *, ErtsProcList *); + +#if ERTS_GLB_INLINE_INCL_FUNC_DEF + +ERTS_GLB_INLINE int +erts_proclist_same(ErtsProcList *plp, Process *p) +{ + return (plp->pid == p->common.id + && (plp->started_interval + == p->common.u.alive.started_interval)); +} + +ERTS_GLB_INLINE void erts_proclist_store_first(ErtsProcList **list, + ErtsProcList *element) +{ + if (!*list) + element->next = element->prev = element; + else { + element->prev = (*list)->prev; + element->next = *list; + element->prev->next = element; + element->next->prev = element; + } + *list = element; +} + +ERTS_GLB_INLINE void erts_proclist_store_last(ErtsProcList **list, + ErtsProcList *element) +{ + if (!*list) { + element->next = element->prev = element; + *list = element; + } + else { + element->prev = (*list)->prev; + element->next = *list; + element->prev->next = element; + element->next->prev = element; + } +} + +ERTS_GLB_INLINE ErtsProcList *erts_proclist_peek_first(ErtsProcList *list) +{ + return list; +} + +ERTS_GLB_INLINE ErtsProcList *erts_proclist_peek_last(ErtsProcList *list) +{ + if (!list) + return NULL; + else + return list->prev; +} + +ERTS_GLB_INLINE ErtsProcList *erts_proclist_peek_next(ErtsProcList *list, + ErtsProcList *element) +{ + ErtsProcList *next; + ASSERT(list && element); + next = element->next; + return list == next ? NULL : next; +} + +ERTS_GLB_INLINE ErtsProcList *erts_proclist_peek_prev(ErtsProcList *list, + ErtsProcList *element) +{ + ErtsProcList *prev; + ASSERT(list && element); + prev = element->prev; + return list == element ? NULL : prev; +} + +ERTS_GLB_INLINE ErtsProcList *erts_proclist_fetch_first(ErtsProcList **list) +{ + if (!*list) + return NULL; + else { + ErtsProcList *res = *list; + if (res == *list) + *list = NULL; + else + *list = res->next; + res->next->prev = res->prev; + res->prev->next = res->next; + return res; + } +} + +ERTS_GLB_INLINE ErtsProcList *erts_proclist_fetch_last(ErtsProcList **list) +{ + if (!*list) + return NULL; + else { + ErtsProcList *res = (*list)->prev; + if (res == *list) + *list = NULL; + res->next->prev = res->prev; + res->prev->next = res->next; + return res; + } +} + +ERTS_GLB_INLINE int erts_proclist_fetch(ErtsProcList **list_first, + ErtsProcList **list_last) +{ + if (!*list_first) { + if (list_last) + *list_last = NULL; + return 0; + } + else { + if (list_last) + *list_last = (*list_first)->prev; + (*list_first)->prev->next = NULL; + (*list_first)->prev = NULL; + return !0; + } +} + +ERTS_GLB_INLINE void erts_proclist_remove(ErtsProcList **list, + ErtsProcList *element) +{ + ASSERT(list && *list); + if (*list == element) { + *list = element->next; + if (*list == element) + *list = NULL; + } + element->next->prev = element->prev; + element->prev->next = element->next; +} + +ERTS_GLB_INLINE int erts_proclist_is_empty(ErtsProcList *list) +{ + return list == NULL; +} + +ERTS_GLB_INLINE int erts_proclist_is_first(ErtsProcList *list, + ErtsProcList *element) +{ + ASSERT(list && element); + return list == element; +} + +ERTS_GLB_INLINE int erts_proclist_is_last(ErtsProcList *list, + ErtsProcList *element) +{ + ASSERT(list && element); + return list->prev == element; +} + +#endif int erts_sched_set_wakeup_other_thresold(char *str); int erts_sched_set_wakeup_other_type(char *str); int erts_sched_set_busy_wait_threshold(char *str); +int erts_sched_set_wake_cleanup_threshold(char *); + +void erts_schedule_thr_prgr_later_op(void (*)(void *), + void *, + ErtsThrPrgrLaterOp *); +void erts_schedule_thr_prgr_later_cleanup_op(void (*)(void *), + void *, + ErtsThrPrgrLaterOp *, + UWord); #if defined(ERTS_SMP) && defined(ERTS_ENABLE_LOCK_CHECK) int erts_dbg_check_halloc_lock(Process *p); @@ -1099,25 +1556,36 @@ int erts_dbg_check_halloc_lock(Process *p); void erts_dbg_multi_scheduling_return_trap(Process *, Eterm); #endif int erts_get_max_no_executing_schedulers(void); -#ifdef ERTS_SMP +#if defined(ERTS_SMP) || defined(ERTS_DIRTY_SCHEDULERS) ErtsSchedSuspendResult -erts_schedulers_state(Uint *, Uint *, Uint *, int); +erts_schedulers_state(Uint *, Uint *, Uint *, Uint *, Uint *, Uint *, int); +#endif +#ifdef ERTS_SMP ErtsSchedSuspendResult erts_set_schedulers_online(Process *p, ErtsProcLocks plocks, Sint new_no, - Sint *old_no); + Sint *old_no +#ifdef ERTS_DIRTY_SCHEDULERS + , int dirty_only +#endif + ); ErtsSchedSuspendResult erts_block_multi_scheduling(Process *, ErtsProcLocks, int, int); int erts_is_multi_scheduling_blocked(void); Eterm erts_multi_scheduling_blockers(Process *); void erts_start_schedulers(void); void erts_alloc_notify_delayed_dealloc(int); +void erts_alloc_ensure_handle_delayed_dealloc_call(int); void erts_smp_notify_check_children_needed(void); #endif #if ERTS_USE_ASYNC_READY_Q void erts_notify_check_async_ready_queue(void *); #endif +#ifdef ERTS_SMP +void erts_notify_code_ix_activation(Process* p, ErtsThrPrgrVal later); +void erts_notify_finish_breakpointing(Process* p); +#endif void erts_schedule_misc_aux_work(int sched_id, void (*func)(void *), void *arg); @@ -1128,7 +1596,7 @@ void erts_schedule_multi_misc_aux_work(int ignore_self, erts_aint32_t erts_set_aux_work_timeout(int, erts_aint32_t, int); void erts_sched_notify_check_cpu_bind(void); Uint erts_active_schedulers(void); -void erts_init_process(int); +void erts_init_process(int, int, int); Eterm erts_process_status(Process *, ErtsProcLocks, Process *, Eterm); Uint erts_run_queues_len(Uint *); void erts_add_to_runq(Process *); @@ -1138,14 +1606,6 @@ Eterm erts_get_schedulers_binds(Process *c_p); Eterm erts_set_cpu_topology(Process *c_p, Eterm term); Eterm erts_bind_schedulers(Process *c_p, Eterm how); ErtsRunQueue *erts_schedid2runq(Uint); -#ifdef ERTS_SMP -ErtsMigrateResult erts_proc_migrate(Process *, - ErtsProcLocks *, - ErtsRunQueue *, - int *, - ErtsRunQueue *, - int *); -#endif Process *schedule(Process*, int); void erts_schedule_misc_op(void (*)(void *), void *); Eterm erl_create_process(Process*, Eterm, Eterm, Eterm, ErlSpawnOpts*); @@ -1155,7 +1615,6 @@ void set_timer(Process*, Uint); void cancel_timer(Process*); /* Begin System profile */ Uint erts_runnable_process_count(void); -Uint erts_process_count(void); /* End System profile */ void erts_init_empty_process(Process *p); void erts_cleanup_empty_process(Process* p); @@ -1179,7 +1638,7 @@ Eterm erts_sched_stat_term(Process *p, int total); void erts_free_proc(Process *); -void erts_suspend(Process*, ErtsProcLocks, struct port*); +void erts_suspend(Process*, ErtsProcLocks, Port*); void erts_resume(Process*, ErtsProcLocks); int erts_resume_processes(ErtsProcList *); @@ -1194,8 +1653,7 @@ int erts_send_exit_signal(Process *, #ifdef ERTS_SMP void erts_handle_pending_exit(Process *, ErtsProcLocks); #define ERTS_PROC_PENDING_EXIT(P) \ - (ERTS_SMP_LC_ASSERT(erts_proc_lc_my_proc_locks((P)) & ERTS_PROC_LOCK_STATUS),\ - (P)->pending_exit.reason != THE_NON_VALUE) + (ERTS_PSFLG_PENDING_EXIT & erts_smp_atomic32_read_acqb(&(P)->state)) #else #define ERTS_PROC_PENDING_EXIT(P) 0 #endif @@ -1205,12 +1663,11 @@ void erts_deep_process_dump(int, void *); Eterm erts_get_reader_groups_map(Process *c_p); Eterm erts_debug_reader_groups_map(Process *c_p, int groups); -Sint erts_test_next_pid(int, Uint); -Eterm erts_debug_processes(Process *c_p); -Eterm erts_debug_processes_bif_info(Process *c_p); Uint erts_debug_nbalance(void); int erts_debug_wait_deallocations(Process *c_p); +Uint erts_process_memory(Process *c_p); + #ifdef ERTS_SMP # define ERTS_GET_SCHEDULER_DATA_FROM_PROC(PROC) ((PROC)->scheduler_data) # define ERTS_PROC_GET_SCHDATA(PROC) ((PROC)->scheduler_data) @@ -1225,7 +1682,7 @@ do { \ ErtsSchedulerData *esdp__ = ((P) \ ? ERTS_PROC_GET_SCHDATA((Process *) (P)) \ : erts_get_scheduler_data()); \ - if (esdp__) \ + if (esdp__ && !ERTS_SCHEDULER_IS_DIRTY(esdp__)) \ esdp__->verify_unused_temp_alloc( \ esdp__->verify_unused_temp_alloc_data); \ } while (0) @@ -1247,13 +1704,26 @@ ErtsSchedulerData *erts_get_scheduler_data(void) #endif #endif +void erts_schedule_process(Process *, erts_aint32_t); + +ERTS_GLB_INLINE void erts_proc_notify_new_message(Process *p); +#if ERTS_GLB_INLINE_INCL_FUNC_DEF +ERTS_GLB_INLINE void +erts_proc_notify_new_message(Process *p) +{ + /* No barrier needed, due to msg lock */ + erts_aint32_t state = erts_smp_atomic32_read_nob(&p->state); + if (!(state & ERTS_PSFLG_ACTIVE)) + erts_schedule_process(p, state); +} +#endif + #if defined(ERTS_SMP) && defined(ERTS_ENABLE_LOCK_CHECK) #define ERTS_PROCESS_LOCK_ONLY_LOCK_CHECK_PROTO__ #include "erl_process_lock.h" #undef ERTS_PROCESS_LOCK_ONLY_LOCK_CHECK_PROTO__ -int erts_smp_lc_runq_is_locked(ErtsRunQueue *); #define ERTS_SMP_LC_CHK_RUNQ_LOCK(RQ, L) \ do { \ if ((L)) \ @@ -1342,6 +1812,18 @@ erts_psd_set(Process *p, ErtsProcLocks plocks, int ix, void *data) #define ERTS_PROC_SET_CALL_TIME(P, L, PBT) \ ((process_breakpoint_time_t *) erts_psd_set((P), (L), ERTS_PSD_CALL_TIME_BP, (void *) (PBT))) +#define ERTS_PROC_GET_DELAYED_GC_TASK_QS(P) \ + ((ErtsProcSysTaskQs *) erts_psd_get((P), ERTS_PSD_DELAYED_GC_TASK_QS)) +#define ERTS_PROC_SET_DELAYED_GC_TASK_QS(P, L, PBT) \ + ((ErtsProcSysTaskQs *) erts_psd_set((P), (L), ERTS_PSD_DELAYED_GC_TASK_QS, (void *) (PBT))) + +#ifdef ERTS_DIRTY_SCHEDULERS +#define ERTS_PROC_GET_DIRTY_SCHED_TRAP_EXPORT(P) \ + ((Export *) erts_psd_get((P), ERTS_PSD_DIRTY_SCHED_TRAP_EXPORT)) +#define ERTS_PROC_SET_DIRTY_SCHED_TRAP_EXPORT(P, L, DSTE) \ + ((Export *) erts_psd_set((P), (L), ERTS_PSD_DIRTY_SCHED_TRAP_EXPORT, (void *) (DSTE))) +#endif + ERTS_GLB_INLINE Eterm erts_proc_get_error_handler(Process *p); ERTS_GLB_INLINE Eterm erts_proc_set_error_handler(Process *p, @@ -1379,13 +1861,112 @@ erts_proc_set_error_handler(Process *p, ErtsProcLocks plocks, Eterm handler) #endif +#ifdef ERTS_INCLUDE_SCHEDULER_INTERNALS + #ifdef ERTS_SMP -ErtsRunQueue *erts_prepare_emigrate(ErtsRunQueue *c_rq, - ErtsRunQueueInfo *c_rqi, - int prio); +#include "erl_thr_progress.h" + +extern erts_atomic_t erts_migration_paths; + +#if ERTS_HAVE_SCHED_UTIL_BALANCING_SUPPORT +int erts_get_sched_util(ErtsRunQueue *rq, + int initially_locked, + int short_interval); +#endif + + +ERTS_GLB_INLINE ErtsMigrationPaths *erts_get_migration_paths_managed(void); +ERTS_GLB_INLINE ErtsMigrationPaths *erts_get_migration_paths(void); ERTS_GLB_INLINE ErtsRunQueue *erts_check_emigration_need(ErtsRunQueue *c_rq, int prio); +#if ERTS_GLB_INLINE_INCL_FUNC_DEF + +ERTS_GLB_INLINE ErtsMigrationPaths * +erts_get_migration_paths_managed(void) +{ + return (ErtsMigrationPaths *) erts_atomic_read_ddrb(&erts_migration_paths); +} + +ERTS_GLB_INLINE ErtsMigrationPaths * +erts_get_migration_paths(void) +{ + if (erts_thr_progress_is_managed_thread()) + return erts_get_migration_paths_managed(); + else + return NULL; +} + +ERTS_GLB_INLINE ErtsRunQueue * +erts_check_emigration_need(ErtsRunQueue *c_rq, int prio) +{ + ErtsMigrationPaths *mps = erts_get_migration_paths(); + ErtsMigrationPath *mp; + Uint32 flags; + + if (!mps) + return NULL; + + mp = &mps->mpath[c_rq->ix]; + flags = mp->flags; + + if (ERTS_CHK_RUNQ_FLG_EMIGRATE(flags, prio)) { + int len; + + if (ERTS_CHK_RUNQ_FLG_EVACUATE(flags, prio)) { + /* force emigration */ + return mp->prio[prio].runq; + } + + if (flags & ERTS_RUNQ_FLG_INACTIVE) { + /* + * Run queue was inactive at last balance. Verify that + * it still is before forcing emigration. + */ + if (ERTS_RUNQ_FLGS_GET(c_rq) & ERTS_RUNQ_FLG_INACTIVE) + return mp->prio[prio].runq; + } + +#if ERTS_HAVE_SCHED_UTIL_BALANCING_SUPPORT + if (mp->sched_util) { + ErtsRunQueue *rq = mp->prio[prio].runq; + /* No migration if other is non-empty */ + if (!(ERTS_RUNQ_FLGS_GET(rq) & ERTS_RUNQ_FLG_NONEMPTY) + && erts_get_sched_util(rq, 0, 1) < mp->prio[prio].limit.other + && erts_get_sched_util(c_rq, 0, 1) > mp->prio[prio].limit.this) { + return rq; + } + } + else +#endif + { + + if (prio == ERTS_PORT_PRIO_LEVEL) + len = RUNQ_READ_LEN(&c_rq->ports.info.len); + else + len = RUNQ_READ_LEN(&c_rq->procs.prio_info[prio].len); + + if (len > mp->prio[prio].limit.this) { + ErtsRunQueue *n_rq = mp->prio[prio].runq; + if (n_rq) { + if (prio == ERTS_PORT_PRIO_LEVEL) + len = RUNQ_READ_LEN(&n_rq->ports.info.len); + else + len = RUNQ_READ_LEN(&n_rq->procs.prio_info[prio].len); + + if (len < mp->prio[prio].limit.other) + return n_rq; + } + } + } + } + return NULL; +} + +#endif + +#endif + #endif ERTS_GLB_INLINE int erts_is_scheduler_bound(ErtsSchedulerData *esdp); @@ -1408,29 +1989,6 @@ ERTS_GLB_INLINE void erts_smp_runqs_unlock(ErtsRunQueue *rq1, ErtsRunQueue *rq2) #if ERTS_GLB_INLINE_INCL_FUNC_DEF -#ifdef ERTS_SMP -ERTS_GLB_INLINE ErtsRunQueue * -erts_check_emigration_need(ErtsRunQueue *c_rq, int prio) -{ - ErtsRunQueueInfo *c_rqi; - - if (!ERTS_CHK_RUNQ_FLG_EMIGRATE(c_rq->flags, prio)) - return NULL; - - if (prio == ERTS_PORT_PRIO_LEVEL) - c_rqi = &c_rq->ports.info; - else - c_rqi = &c_rq->procs.prio_info[prio]; - - if (!ERTS_CHK_RUNQ_FLG_EVACUATE(c_rq->flags, prio) - && !(c_rq->flags & ERTS_RUNQ_FLG_INACTIVE) - && c_rqi->len <= c_rqi->migrate.limit.this) - return NULL; - - return erts_prepare_emigrate(c_rq, c_rqi, prio); -} -#endif - ERTS_GLB_INLINE int erts_is_scheduler_bound(ErtsSchedulerData *esdp) { @@ -1451,7 +2009,7 @@ ERTS_GLB_INLINE Eterm erts_get_current_pid(void) { Process *proc = erts_get_current_process(); - return proc ? proc->id : THE_NON_VALUE; + return proc ? proc->common.id : THE_NON_VALUE; } ERTS_GLB_INLINE @@ -1459,7 +2017,12 @@ Uint erts_get_scheduler_id(void) { #ifdef ERTS_SMP ErtsSchedulerData *esdp = erts_get_scheduler_data(); - return esdp ? esdp->no : (Uint) 0; +#ifdef ERTS_DIRTY_SCHEDULERS + if (esdp && ERTS_SCHEDULER_IS_DIRTY(esdp)) + return 0; + else +#endif + return esdp ? esdp->no : (Uint) 0; #else return erts_get_scheduler_data() ? (Uint) 1 : (Uint) 0; #endif @@ -1468,10 +2031,9 @@ Uint erts_get_scheduler_id(void) ERTS_GLB_INLINE ErtsRunQueue * erts_get_runq_proc(Process *p) { - ERTS_SMP_LC_ASSERT(ERTS_PROC_LOCK_STATUS & erts_proc_lc_my_proc_locks(p)); #ifdef ERTS_SMP - ASSERT(p->run_queue); - return p->run_queue; + ASSERT(ERTS_AINT_NULL != erts_atomic_read_nob(&p->run_queue)); + return (ErtsRunQueue *) erts_atomic_read_nob(&p->run_queue); #else return ERTS_RUNQ_IX(0); #endif @@ -1490,12 +2052,6 @@ erts_get_runq_current(ErtsSchedulerData *esdp) #endif } -#ifdef ERTS_ENABLE_LOCK_COUNT - -#define erts_smp_runq_lock(rq) erts_smp_mtx_lock_x(&(rq)->mtx, __FILE__, __LINE__) - -#else - ERTS_GLB_INLINE void erts_smp_runq_lock(ErtsRunQueue *rq) { @@ -1504,6 +2060,10 @@ erts_smp_runq_lock(ErtsRunQueue *rq) #endif } +#ifdef ERTS_ENABLE_LOCK_COUNT + +#define erts_smp_runq_lock(rq) erts_smp_mtx_lock_x(&(rq)->mtx, __FILE__, __LINE__) + #endif ERTS_GLB_INLINE int @@ -1642,25 +2202,13 @@ extern int erts_disable_proc_not_running_opt; #ifdef DEBUG #define ERTS_SMP_ASSERT_IS_NOT_EXITING(P) \ - do { ASSERT(!(P)->is_exiting); } while (0) + do { ASSERT(!ERTS_PROC_IS_EXITING((P))); } while (0) #else #define ERTS_SMP_ASSERT_IS_NOT_EXITING(P) #endif -/* NOTE: At least one process lock has to be held on P! */ -#ifdef ERTS_ENABLE_LOCK_CHECK -#define ERTS_PROC_IS_EXITING(P) \ - (ERTS_SMP_LC_ASSERT(erts_proc_lc_my_proc_locks((P)) != 0 \ - || erts_lc_pix_lock_is_locked(ERTS_PID2PIXLOCK((P)->id))),\ - (P)->is_exiting) -#else -#define ERTS_PROC_IS_EXITING(P) ((P)->is_exiting) -#endif - #else /* !ERTS_SMP */ -#define ERTS_PROC_IS_EXITING(P) ((P)->status == P_EXITING) - #define ERTS_SMP_ASSERT_IS_NOT_EXITING(P) #define erts_pid2proc_not_running erts_pid2proc @@ -1668,11 +2216,15 @@ extern int erts_disable_proc_not_running_opt; #endif +#define ERTS_PROC_IS_EXITING(P) \ + (ERTS_PSFLG_EXITING & erts_smp_atomic32_read_acqb(&(P)->state)) + + /* Minimum NUMBER of processes for a small system to start */ -#ifdef ERTS_SMP +#define ERTS_MIN_PROCESSES 1024 +#if defined(ERTS_SMP) && ERTS_MIN_PROCESSES < ERTS_NO_OF_PIX_LOCKS +#undef ERTS_MIN_PROCESSES #define ERTS_MIN_PROCESSES ERTS_NO_OF_PIX_LOCKS -#else -#define ERTS_MIN_PROCESSES 16 #endif void erts_smp_notify_inc_runq(ErtsRunQueue *runq); @@ -1695,6 +2247,7 @@ erts_sched_poke(ErtsSchedulerSleepInfo *ssi) } } + #endif /* #if ERTS_GLB_INLINE_INCL_FUNC_DEF */ #endif /* #ifdef ERTS_SMP */ diff --git a/erts/emulator/beam/erl_process_dict.c b/erts/emulator/beam/erl_process_dict.c index 93466da3aa..23e5bf737f 100644 --- a/erts/emulator/beam/erl_process_dict.c +++ b/erts/emulator/beam/erl_process_dict.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 1999-2009. All Rights Reserved. + * Copyright Ericsson AB 1999-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -360,7 +360,7 @@ static void pd_hash_erase(Process *p, Eterm id, Eterm *ret) erts_fprintf(stderr, "Process dictionary for process %T is broken, trying to " "display term found in line %d:\n" - "%T\n", p->id, __LINE__, old); + "%T\n", p->common.id, __LINE__, old); #endif erl_exit(1, "Damaged process dictionary found during erase/1."); } @@ -405,7 +405,7 @@ Eterm erts_pd_hash_get(Process *p, Eterm id) erts_fprintf(stderr, "Process dictionary for process %T is broken, trying to " "display term found in line %d:\n" - "%T\n", p->id, __LINE__, tmp); + "%T\n", p->common.id, __LINE__, tmp); #endif erl_exit(1, "Damaged process dictionary found during get/1."); } @@ -614,7 +614,7 @@ static Eterm pd_hash_put(Process *p, Eterm id, Eterm value) erts_fprintf(stderr, "Process dictionary for process %T is broken, trying to " "display term found in line %d:\n" - "%T\n", p->id, __LINE__, old); + "%T\n", p->common.id, __LINE__, old); #endif erl_exit(1, "Damaged process dictionary found during put/2."); @@ -659,7 +659,7 @@ static void shrink(Process *p, Eterm* ret) } else { int needed = 4; if (is_list(hi) && is_list(lo)) { - needed = 2*list_length(hi); + needed = 2*erts_list_length(hi); } if (HeapWordsLeft(p) < needed) { BUMP_REDS(p, erts_garbage_collect(p, needed, ret, 1)); diff --git a/erts/emulator/beam/erl_process_dump.c b/erts/emulator/beam/erl_process_dump.c index 3550f1396c..2f3cf23b00 100644 --- a/erts/emulator/beam/erl_process_dump.c +++ b/erts/emulator/beam/erl_process_dump.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 2003-2011. All Rights Reserved. + * Copyright Ericsson AB 2003-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -34,8 +34,8 @@ #define ERTS_WANT_EXTERNAL_TAGS #include "external.h" -#define WORD_FMT "%X" -#define ADDR_FMT "%X" +#define PTR_FMT "%bpX" +#define ETERM_FMT "%beX" #define OUR_NIL _make_header(0,_TAG_HEADER_FLOAT) @@ -60,25 +60,59 @@ extern BeamInstr beam_continue_exit[]; void erts_deep_process_dump(int to, void *to_arg) { - int i; + int i, max = erts_ptab_max(&erts_proc); all_binaries = NULL; - for (i = 0; i < erts_max_processes; i++) { - if ((process_tab[i] != NULL) && (process_tab[i]->i != ENULL)) { - if (process_tab[i]->status != P_EXITING) { - Process* p = process_tab[i]; - - if (p->status != P_GARBING) { - dump_process_info(to, to_arg, p); - } - } + for (i = 0; i < max; i++) { + Process *p = erts_pix2proc(i); + if (p && p->i != ENULL) { + erts_aint32_t state = erts_smp_atomic32_read_acqb(&p->state); + if (!(state & (ERTS_PSFLG_EXITING|ERTS_PSFLG_GC))) + dump_process_info(to, to_arg, p); } } dump_binaries(to, to_arg, all_binaries); } +Uint erts_process_memory(Process *p) { + ErlMessage *mp; + Uint size = 0; + struct saved_calls *scb; + size += sizeof(Process); + + ERTS_SMP_MSGQ_MV_INQ2PRIVQ(p); + + erts_doforall_links(ERTS_P_LINKS(p), &erts_one_link_size, &size); + erts_doforall_monitors(ERTS_P_MONITORS(p), &erts_one_mon_size, &size); + size += (p->heap_sz + p->mbuf_sz) * sizeof(Eterm); + if (p->old_hend && p->old_heap) + size += (p->old_hend - p->old_heap) * sizeof(Eterm); + + size += p->msg.len * sizeof(ErlMessage); + + for (mp = p->msg.first; mp; mp = mp->next) + if (mp->data.attached) + size += erts_msg_attached_data_size(mp)*sizeof(Eterm); + + if (p->arg_reg != p->def_arg_reg) { + size += p->arity * sizeof(p->arg_reg[0]); + } + + if (p->psd) + size += sizeof(ErtsPSD); + + scb = ERTS_PROC_GET_SAVED_CALLS_BUF(p); + if (scb) { + size += (sizeof(struct saved_calls) + + (scb->len-1) * sizeof(scb->ct[0])); + } + + size += erts_dicts_mem_size(p); + return size; +} + static void dump_process_info(int to, void *to_arg, Process *p) { @@ -88,8 +122,8 @@ dump_process_info(int to, void *to_arg, Process *p) ERTS_SMP_MSGQ_MV_INQ2PRIVQ(p); - if ((p->trace_flags & F_SENSITIVE) == 0 && p->msg.first) { - erts_print(to, to_arg, "=proc_messages:%T\n", p->id); + if ((ERTS_TRACE_FLAGS(p) & F_SENSITIVE) == 0 && p->msg.first) { + erts_print(to, to_arg, "=proc_messages:%T\n", p->common.id); for (mp = p->msg.first; mp != NULL; mp = mp->next) { Eterm mesg = ERL_MESSAGE_TERM(mp); if (is_value(mesg)) @@ -103,21 +137,21 @@ dump_process_info(int to, void *to_arg, Process *p) } } - if ((p->trace_flags & F_SENSITIVE) == 0) { + if ((ERTS_TRACE_FLAGS(p) & F_SENSITIVE) == 0) { if (p->dictionary) { - erts_print(to, to_arg, "=proc_dictionary:%T\n", p->id); + erts_print(to, to_arg, "=proc_dictionary:%T\n", p->common.id); erts_deep_dictionary_dump(to, to_arg, p->dictionary, dump_element_nl); } } - if ((p->trace_flags & F_SENSITIVE) == 0) { - erts_print(to, to_arg, "=proc_stack:%T\n", p->id); + if ((ERTS_TRACE_FLAGS(p) & F_SENSITIVE) == 0) { + erts_print(to, to_arg, "=proc_stack:%T\n", p->common.id); for (sp = p->stop; sp < STACK_START(p); sp++) { yreg = stack_element_dump(to, to_arg, p, sp, yreg); } - erts_print(to, to_arg, "=proc_heap:%T\n", p->id); + erts_print(to, to_arg, "=proc_heap:%T\n", p->common.id); for (sp = p->stop; sp < STACK_START(p); sp++) { Eterm term = *sp; @@ -176,9 +210,9 @@ static void dump_element(int to, void *to_arg, Eterm x) { if (is_list(x)) { - erts_print(to, to_arg, "H" WORD_FMT, list_val(x)); + erts_print(to, to_arg, "H" PTR_FMT, list_val(x)); } else if (is_boxed(x)) { - erts_print(to, to_arg, "H" WORD_FMT, boxed_val(x)); + erts_print(to, to_arg, "H" PTR_FMT, boxed_val(x)); } else if (is_immed(x)) { if (is_atom(x)) { unsigned char* s = atom_tab(atom_val(x))->name; @@ -277,7 +311,7 @@ heap_dump(int to, void *to_arg, Eterm x) } else if (is_list(x)) { ptr = list_val(x); if (ptr[0] != OUR_NIL) { - erts_print(to, to_arg, ADDR_FMT ":l", ptr); + erts_print(to, to_arg, PTR_FMT ":l", ptr); dump_element(to, to_arg, ptr[0]); erts_putc(to, to_arg, '|'); dump_element(to, to_arg, ptr[1]); @@ -296,12 +330,12 @@ heap_dump(int to, void *to_arg, Eterm x) ptr = boxed_val(x); hdr = *ptr; if (hdr != OUR_NIL) { /* If not visited */ - erts_print(to, to_arg, ADDR_FMT ":", ptr); + erts_print(to, to_arg, PTR_FMT ":", ptr); if (is_arity_value(hdr)) { Uint i; Uint arity = arityval(hdr); - erts_print(to, to_arg, "t" WORD_FMT ":", arity); + erts_print(to, to_arg, "t" ETERM_FMT ":", arity); for (i = 1; i <= arity; i++) { dump_element(to, to_arg, ptr[i]); if (is_immed(ptr[i])) { @@ -326,7 +360,7 @@ heap_dump(int to, void *to_arg, Eterm x) int i; GET_DOUBLE_DATA((ptr+1), f); - i = sys_double_to_chars(f.fd, (char*) sbuf); + i = sys_double_to_chars(f.fd, (char*) sbuf, sizeof(sbuf)); sys_memset(sbuf+i, 0, 31-i); erts_print(to, to_arg, "F%X:%s\n", i, sbuf); *ptr = OUR_NIL; @@ -354,21 +388,43 @@ heap_dump(int to, void *to_arg, Eterm x) val->flags = (UWord) all_binaries; all_binaries = val; } - erts_print(to, to_arg, "Yc%X:%X:%X", val, + erts_print(to, to_arg, + "Yc" PTR_FMT ":" PTR_FMT ":" PTR_FMT, + val, pb->bytes - (byte *)val->orig_bytes, size); } else if (tag == SUB_BINARY_SUBTAG) { ErlSubBin* Sb = (ErlSubBin *) binary_val(x); - Eterm* real_bin = binary_val(Sb->orig); + Eterm* real_bin; void* val; + /* + * Must use boxed_val() here, because the original + * binary may have been visited and have had its + * header word changed to OUR_NIL (in which case + * binary_val() will cause an assertion failure in + * the DEBUG emulator). + */ + + real_bin = boxed_val(Sb->orig); + if (thing_subtag(*real_bin) == REFC_BINARY_SUBTAG) { + /* + * Unvisited REFC_BINARY: Point directly to + * the binary. + */ ProcBin* pb = (ProcBin *) real_bin; val = pb->val; - } else { /* Heap binary */ + } else { + /* + * Heap binary or visited REFC binary: Point + * to heap binary or ProcBin on the heap. + */ val = real_bin; } - erts_print(to, to_arg, "Ys%X:%X:%X", val, Sb->offs, size); + erts_print(to, to_arg, + "Ys" PTR_FMT ":" PTR_FMT ":" PTR_FMT, + val, Sb->offs, size); } erts_putc(to, to_arg, '\n'); *ptr = OUR_NIL; @@ -404,7 +460,7 @@ dump_binaries(int to, void *to_arg, Binary* current) long size = current->orig_size; byte* bytes = (byte*) current->orig_bytes; - erts_print(to, to_arg, "=binary:%X\n", current); + erts_print(to, to_arg, "=binary:" PTR_FMT "\n", current); erts_print(to, to_arg, "%X:", size); for (i = 0; i < size; i++) { erts_print(to, to_arg, "%02X", bytes[i]); diff --git a/erts/emulator/beam/erl_process_lock.c b/erts/emulator/beam/erl_process_lock.c index f7900317cc..82cc68222d 100644 --- a/erts/emulator/beam/erl_process_lock.c +++ b/erts/emulator/beam/erl_process_lock.c @@ -66,11 +66,12 @@ #endif #include "erl_process.h" - -const Process erts_proc_lock_busy; +#include "erl_thr_progress.h" #ifdef ERTS_SMP +#if ERTS_PROC_LOCK_OWN_IMPL + #define ERTS_PROC_LOCK_SPIN_COUNT_MAX 2000 #define ERTS_PROC_LOCK_SPIN_COUNT_SCHED_INC 32 #define ERTS_PROC_LOCK_SPIN_COUNT_BASE 1000 @@ -90,6 +91,13 @@ static void check_queue(erts_proc_lock_t *lck); #error "The size of the 'uflgs' field of the erts_tse_t type is too small" #endif +static int proc_lock_spin_count; +static int aux_thr_proc_lock_spin_count; + +static void cleanup_tse(void); + +#endif /* ERTS_PROC_LOCK_OWN_IMPL */ + #ifdef ERTS_ENABLE_LOCK_CHECK static struct { Sint16 proc_lock_main; @@ -101,10 +109,6 @@ static struct { erts_pix_lock_t erts_pix_locks[ERTS_NO_OF_PIX_LOCKS]; -static int proc_lock_spin_count; -static int aux_thr_proc_lock_spin_count; - -static void cleanup_tse(void); void erts_init_proc_lock(int cpus) @@ -113,18 +117,13 @@ erts_init_proc_lock(int cpus) for (i = 0; i < ERTS_NO_OF_PIX_LOCKS; i++) { #ifdef ERTS_ENABLE_LOCK_COUNT erts_mtx_init_x(&erts_pix_locks[i].u.mtx, - "pix_lock", make_small(i)); + "pix_lock", make_small(i), 1); #else erts_mtx_init(&erts_pix_locks[i].u.mtx, "pix_lock"); #endif } +#if ERTS_PROC_LOCK_OWN_IMPL erts_thr_install_exit_handler(cleanup_tse); -#ifdef ERTS_ENABLE_LOCK_CHECK - lc_id.proc_lock_main = erts_lc_get_lock_order_id("proc_main"); - lc_id.proc_lock_link = erts_lc_get_lock_order_id("proc_link"); - lc_id.proc_lock_msgq = erts_lc_get_lock_order_id("proc_msgq"); - lc_id.proc_lock_status = erts_lc_get_lock_order_id("proc_status"); -#endif if (cpus > 1) { proc_lock_spin_count = ERTS_PROC_LOCK_SPIN_COUNT_BASE; proc_lock_spin_count += (ERTS_PROC_LOCK_SPIN_COUNT_SCHED_INC @@ -141,8 +140,17 @@ erts_init_proc_lock(int cpus) } if (proc_lock_spin_count > ERTS_PROC_LOCK_SPIN_COUNT_MAX) proc_lock_spin_count = ERTS_PROC_LOCK_SPIN_COUNT_MAX; +#endif +#ifdef ERTS_ENABLE_LOCK_CHECK + lc_id.proc_lock_main = erts_lc_get_lock_order_id("proc_main"); + lc_id.proc_lock_link = erts_lc_get_lock_order_id("proc_link"); + lc_id.proc_lock_msgq = erts_lc_get_lock_order_id("proc_msgq"); + lc_id.proc_lock_status = erts_lc_get_lock_order_id("proc_status"); +#endif } +#if ERTS_PROC_LOCK_OWN_IMPL + #ifdef ERTS_ENABLE_LOCK_CHECK #define CHECK_UNUSED_TSE(W) ERTS_LC_ASSERT((W)->uflgs == 0) #else @@ -164,13 +172,6 @@ tse_return(erts_tse_t *tse) erts_tse_return(tse); } -void -erts_proc_lock_prepare_proc_lock_waiter(void) -{ - tse_return(tse_fetch(NULL)); -} - - static void cleanup_tse(void) { @@ -397,7 +398,7 @@ wait_for_locks(Process *p, ErtsProcLocks need_locks, ErtsProcLocks olflgs) { - erts_pix_lock_t *pix_lock = pixlck ? pixlck : ERTS_PID2PIXLOCK(p->id); + erts_pix_lock_t *pix_lock = pixlck ? pixlck : ERTS_PID2PIXLOCK(p->common.id); erts_tse_t *wtr; /* Acquire a waiter object on which this thread can wait. */ @@ -551,7 +552,7 @@ erts_proc_unlock_failed(Process *p, erts_pix_lock_t *pixlck, ErtsProcLocks wait_locks) { - erts_pix_lock_t *pix_lock = pixlck ? pixlck : ERTS_PID2PIXLOCK(p->id); + erts_pix_lock_t *pix_lock = pixlck ? pixlck : ERTS_PID2PIXLOCK(p->common.id); #if ERTS_PROC_LOCK_ATOMIC_IMPL erts_pix_lock(pix_lock); @@ -560,6 +561,16 @@ erts_proc_unlock_failed(Process *p, transfer_locks(p, wait_locks, pix_lock, 1); /* unlocks pix_lock */ } +#endif /* ERTS_PROC_LOCK_OWN_IMPL */ + +void +erts_proc_lock_prepare_proc_lock_waiter(void) +{ +#if ERTS_PROC_LOCK_OWN_IMPL + tse_return(tse_fetch(NULL)); +#endif +} + /* * proc_safelock() locks process locks on two processes. In order * to avoid a deadlock, proc_safelock() unlocks those locks that @@ -568,12 +579,11 @@ erts_proc_unlock_failed(Process *p, */ static void -proc_safelock(Process *a_proc, - erts_pix_lock_t *a_pix_lck, +proc_safelock(int is_managed, + Process *a_proc, ErtsProcLocks a_have_locks, ErtsProcLocks a_need_locks, Process *b_proc, - erts_pix_lock_t *b_pix_lck, ErtsProcLocks b_have_locks, ErtsProcLocks b_need_locks) { @@ -581,7 +591,6 @@ proc_safelock(Process *a_proc, #ifdef ERTS_ENABLE_LOCK_CHECK Eterm pid1, pid2; #endif - erts_pix_lock_t *pix_lck1, *pix_lck2; ErtsProcLocks need_locks1, have_locks1, need_locks2, have_locks2; ErtsProcLocks unlock_mask; int lock_no, refc1 = 0, refc2 = 0; @@ -593,53 +602,47 @@ proc_safelock(Process *a_proc, * Locks with the same lock order should be locked on p1 before p2. */ if (a_proc) { - if (a_proc->id < b_proc->id) { + if (a_proc->common.id < b_proc->common.id) { p1 = a_proc; #ifdef ERTS_ENABLE_LOCK_CHECK - pid1 = a_proc->id; + pid1 = a_proc->common.id; #endif - pix_lck1 = a_pix_lck; need_locks1 = a_need_locks; have_locks1 = a_have_locks; p2 = b_proc; #ifdef ERTS_ENABLE_LOCK_CHECK - pid2 = b_proc->id; + pid2 = b_proc->common.id; #endif - pix_lck2 = b_pix_lck; need_locks2 = b_need_locks; have_locks2 = b_have_locks; } - else if (a_proc->id > b_proc->id) { + else if (a_proc->common.id > b_proc->common.id) { p1 = b_proc; #ifdef ERTS_ENABLE_LOCK_CHECK - pid1 = b_proc->id; + pid1 = b_proc->common.id; #endif - pix_lck1 = b_pix_lck; need_locks1 = b_need_locks; have_locks1 = b_have_locks; p2 = a_proc; #ifdef ERTS_ENABLE_LOCK_CHECK - pid2 = a_proc->id; + pid2 = a_proc->common.id; #endif - pix_lck2 = a_pix_lck; need_locks2 = a_need_locks; have_locks2 = a_have_locks; } else { ERTS_LC_ASSERT(a_proc == b_proc); - ERTS_LC_ASSERT(a_proc->id == b_proc->id); + ERTS_LC_ASSERT(a_proc->common.id == b_proc->common.id); p1 = a_proc; #ifdef ERTS_ENABLE_LOCK_CHECK - pid1 = a_proc->id; + pid1 = a_proc->common.id; #endif - pix_lck1 = a_pix_lck; need_locks1 = a_need_locks | b_need_locks; have_locks1 = a_have_locks | b_have_locks; p2 = NULL; #ifdef ERTS_ENABLE_LOCK_CHECK pid2 = 0; #endif - pix_lck2 = NULL; need_locks2 = 0; have_locks2 = 0; } @@ -647,16 +650,14 @@ proc_safelock(Process *a_proc, else { p1 = b_proc; #ifdef ERTS_ENABLE_LOCK_CHECK - pid1 = b_proc->id; + pid1 = b_proc->common.id; #endif - pix_lck1 = b_pix_lck; need_locks1 = b_need_locks; have_locks1 = b_have_locks; p2 = NULL; #ifdef ERTS_ENABLE_LOCK_CHECK pid2 = 0; #endif - pix_lck2 = NULL; need_locks2 = 0; have_locks2 = 0; #ifdef ERTS_ENABLE_LOCK_CHECK @@ -704,21 +705,21 @@ proc_safelock(Process *a_proc, if (unlock_locks) { have_locks1 &= ~unlock_locks; need_locks1 |= unlock_locks; - if (!have_locks1) { + if (!is_managed && !have_locks1) { refc1 = 1; erts_smp_proc_inc_refc(p1); } - erts_smp_proc_unlock__(p1, pix_lck1, unlock_locks); + erts_smp_proc_unlock(p1, unlock_locks); } unlock_locks = unlock_mask & have_locks2; if (unlock_locks) { have_locks2 &= ~unlock_locks; need_locks2 |= unlock_locks; - if (!have_locks2) { + if (!is_managed && !have_locks2) { refc2 = 1; erts_smp_proc_inc_refc(p2); } - erts_smp_proc_unlock__(p2, pix_lck2, unlock_locks); + erts_smp_proc_unlock(p2, unlock_locks); } } @@ -749,7 +750,7 @@ proc_safelock(Process *a_proc, if (need_locks2 & lock) lock_no--; locks = need_locks1 & lock_mask; - erts_smp_proc_lock__(p1, pix_lck1, locks); + erts_smp_proc_lock(p1, locks); have_locks1 |= locks; need_locks1 &= ~locks; } @@ -760,7 +761,7 @@ proc_safelock(Process *a_proc, lock = (1 << ++lock_no); } locks = need_locks2 & lock_mask; - erts_smp_proc_lock__(p2, pix_lck2, locks); + erts_smp_proc_lock(p2, locks); have_locks2 |= locks; need_locks2 &= ~locks; } @@ -795,10 +796,12 @@ proc_safelock(Process *a_proc, } #endif - if (refc1) - erts_smp_proc_dec_refc(p1); - if (refc2) - erts_smp_proc_dec_refc(p2); + if (!is_managed) { + if (refc1) + erts_smp_proc_dec_refc(p1); + if (refc2) + erts_smp_proc_dec_refc(p2); + } } void @@ -809,78 +812,197 @@ erts_proc_safelock(Process *a_proc, ErtsProcLocks b_have_locks, ErtsProcLocks b_need_locks) { - proc_safelock(a_proc, - a_proc ? ERTS_PID2PIXLOCK(a_proc->id) : NULL, + proc_safelock(erts_get_scheduler_id() != 0, + a_proc, a_have_locks, a_need_locks, b_proc, - b_proc ? ERTS_PID2PIXLOCK(b_proc->id) : NULL, b_have_locks, b_need_locks); } -/* - * erts_pid2proc_safelock() is called from erts_pid2proc_opt() when - * it wasn't possible to trylock all locks needed. - * c_p - current process - * c_p_have_locks - locks held on c_p - * pid - process id of process we are looking up - * proc - process struct of process we are looking - * up (both in and out argument) - * need_locks - all locks we need (including have_locks) - * pix_lock - pix lock for process we are looking up - * flags - option flags - */ -void -erts_pid2proc_safelock(Process *c_p, - ErtsProcLocks c_p_have_locks, - Process **proc, - ErtsProcLocks need_locks, - erts_pix_lock_t *pix_lock, - int flags) +Process * +erts_pid2proc_opt(Process *c_p, + ErtsProcLocks c_p_have_locks, + Eterm pid, + ErtsProcLocks pid_need_locks, + int flags) { - Process *p = *proc; - ERTS_LC_ASSERT(p->lock.refc > 0); - ERTS_LC_ASSERT(process_tab[internal_pid_index(p->id)] == p); - p->lock.refc++; - erts_pix_unlock(pix_lock); - - proc_safelock(c_p, - c_p ? ERTS_PID2PIXLOCK(c_p->id) : NULL, - c_p_have_locks, - c_p_have_locks, - p, - pix_lock, - 0, - need_locks); + Process *dec_refc_proc = NULL; + ErtsThrPrgrDelayHandle dhndl; + ErtsProcLocks need_locks; + Uint pix; + Process *proc; +#if ERTS_PROC_LOCK_OWN_IMPL && defined(ERTS_ENABLE_LOCK_COUNT) + ErtsProcLocks lcnt_locks; +#endif - erts_pix_lock(pix_lock); +#ifdef ERTS_ENABLE_LOCK_CHECK + if (c_p) { + ErtsProcLocks might_unlock = c_p_have_locks & pid_need_locks; + if (might_unlock) + erts_proc_lc_might_unlock(c_p, might_unlock); + } +#endif - if (!p->is_exiting - || ((flags & ERTS_P2P_FLG_ALLOW_OTHER_X) - && process_tab[internal_pid_index(p->id)] == p)) { - ERTS_LC_ASSERT(p->lock.refc > 1); - p->lock.refc--; + if (is_not_internal_pid(pid)) + return NULL; + pix = internal_pid_index(pid); + + ERTS_LC_ASSERT((pid_need_locks & ERTS_PROC_LOCKS_ALL) == pid_need_locks); + need_locks = pid_need_locks; + + if (c_p && c_p->common.id == pid) { + ASSERT(c_p->common.id != ERTS_INVALID_PID); + ASSERT(c_p == erts_pix2proc(pix)); + + if (!(flags & ERTS_P2P_FLG_ALLOW_OTHER_X) + && ERTS_PROC_IS_EXITING(c_p)) + return NULL; + need_locks &= ~c_p_have_locks; + if (!need_locks) { + if (flags & ERTS_P2P_FLG_SMP_INC_REFC) + erts_smp_proc_inc_refc(c_p); + return c_p; + } } - else { - /* No proc. Note, we need to keep refc until after process unlock */ - erts_pix_unlock(pix_lock); - erts_smp_proc_unlock__(p, pix_lock, need_locks); - *proc = NULL; - erts_pix_lock(pix_lock); - ERTS_LC_ASSERT(p->lock.refc > 0); - if (--p->lock.refc == 0) { - erts_pix_unlock(pix_lock); - erts_free_proc(p); - erts_pix_lock(pix_lock); + + dhndl = erts_thr_progress_unmanaged_delay(); + + proc = (Process *) erts_ptab_pix2intptr_ddrb(&erts_proc, pix); + + if (proc) { + if (proc->common.id != pid) + proc = NULL; + else if (!need_locks) { + if (flags & ERTS_P2P_FLG_SMP_INC_REFC) + erts_smp_proc_inc_refc(proc); } + else { + int busy; + +#if ERTS_PROC_LOCK_OWN_IMPL +#ifdef ERTS_ENABLE_LOCK_COUNT + lcnt_locks = need_locks; + if (!(flags & ERTS_P2P_FLG_TRY_LOCK)) { + erts_lcnt_proc_lock(&proc->lock, need_locks); + } +#endif + +#ifdef ERTS_ENABLE_LOCK_CHECK + /* Make sure erts_pid2proc_safelock() is enough to handle + a potential lock order violation situation... */ + busy = erts_proc_lc_trylock_force_busy(proc, need_locks); + if (!busy) +#endif +#endif /* ERTS_PROC_LOCK_OWN_IMPL */ + { + /* Try a quick trylock to grab all the locks we need. */ + busy = (int) erts_smp_proc_raw_trylock__(proc, need_locks); + +#if ERTS_PROC_LOCK_OWN_IMPL && defined(ERTS_ENABLE_LOCK_CHECK) + erts_proc_lc_trylock(proc, need_locks, !busy, __FILE__,__LINE__); +#endif +#ifdef ERTS_PROC_LOCK_DEBUG + if (!busy) + erts_proc_lock_op_debug(proc, need_locks, 1); +#endif + } + +#if ERTS_PROC_LOCK_OWN_IMPL && defined(ERTS_ENABLE_LOCK_COUNT) + if (flags & ERTS_P2P_FLG_TRY_LOCK) + erts_lcnt_proc_trylock(&proc->lock, need_locks, + busy ? EBUSY : 0); +#endif + + if (!busy) { + if (flags & ERTS_P2P_FLG_SMP_INC_REFC) + erts_smp_proc_inc_refc(proc); + +#if ERTS_PROC_LOCK_OWN_IMPL && defined(ERTS_ENABLE_LOCK_COUNT) + /* all is great */ + if (!(flags & ERTS_P2P_FLG_TRY_LOCK)) + erts_lcnt_proc_lock_post_x(&proc->lock, lcnt_locks, + __FILE__, __LINE__); +#endif + + } + else { + if (flags & ERTS_P2P_FLG_TRY_LOCK) + proc = ERTS_PROC_LOCK_BUSY; + else { + int managed; + if (flags & ERTS_P2P_FLG_SMP_INC_REFC) + erts_smp_proc_inc_refc(proc); + +#if ERTS_PROC_LOCK_OWN_IMPL && defined(ERTS_ENABLE_LOCK_COUNT) + erts_lcnt_proc_lock_unaquire(&proc->lock, lcnt_locks); +#endif + + managed = dhndl == ERTS_THR_PRGR_DHANDLE_MANAGED; + if (!managed) { + erts_smp_proc_inc_refc(proc); + erts_thr_progress_unmanaged_continue(dhndl); + dec_refc_proc = proc; + + /* + * We don't want to call + * erts_thr_progress_unmanaged_continue() + * again. + */ + dhndl = ERTS_THR_PRGR_DHANDLE_MANAGED; + } + + proc_safelock(managed, + c_p, + c_p_have_locks, + c_p_have_locks, + proc, + 0, + need_locks); + } + } + } } + + if (dhndl != ERTS_THR_PRGR_DHANDLE_MANAGED) + erts_thr_progress_unmanaged_continue(dhndl); + + if (need_locks + && proc + && proc != ERTS_PROC_LOCK_BUSY + && (!(flags & ERTS_P2P_FLG_ALLOW_OTHER_X) + ? ERTS_PROC_IS_EXITING(proc) + : (proc + != (Process *) erts_ptab_pix2intptr_nob(&erts_proc, pix)))) { + + erts_smp_proc_unlock(proc, need_locks); + + if (flags & ERTS_P2P_FLG_SMP_INC_REFC) + dec_refc_proc = proc; + proc = NULL; + + } + + if (dec_refc_proc) + erts_smp_proc_dec_refc(dec_refc_proc); + +#if ERTS_PROC_LOCK_OWN_IMPL && defined(ERTS_PROC_LOCK_DEBUG) + ERTS_LC_ASSERT(!proc + || proc == ERTS_PROC_LOCK_BUSY + || (pid_need_locks == + (ERTS_PROC_LOCK_FLGS_READ_(&proc->lock) + & pid_need_locks))); +#endif + + return proc; } void erts_proc_lock_init(Process *p) { int i; +#if ERTS_PROC_LOCK_OWN_IMPL /* We always start with all locks locked */ #if ERTS_PROC_LOCK_ATOMIC_IMPL erts_smp_atomic32_init_nob(&p->lock.flags, @@ -890,32 +1012,75 @@ erts_proc_lock_init(Process *p) #endif for (i = 0; i <= ERTS_PROC_LOCK_MAX_BIT; i++) p->lock.queue[i] = NULL; - p->lock.refc = 1; +#ifdef ERTS_ENABLE_LOCK_CHECK + erts_proc_lc_trylock(p, ERTS_PROC_LOCKS_ALL, 1,__FILE__,__LINE__); +#endif +#elif ERTS_PROC_LOCK_RAW_MUTEX_IMPL + #ifdef ERTS_ENABLE_LOCK_COUNT - erts_lcnt_proc_lock_init(p); - erts_lcnt_proc_lock(&(p->lock), ERTS_PROC_LOCKS_ALL); - erts_lcnt_proc_lock_post_x(&(p->lock), ERTS_PROC_LOCKS_ALL, __FILE__, __LINE__); + int do_lock_count = 1; +#else + int do_lock_count = 0; #endif - + + erts_mtx_init_x(&p->lock.main, "proc_main", p->common.id, do_lock_count); + ethr_mutex_lock(&p->lock.main.mtx); #ifdef ERTS_ENABLE_LOCK_CHECK - erts_proc_lc_trylock(p, ERTS_PROC_LOCKS_ALL, 1); + erts_lc_trylock(1, &p->lock.main.lc); +#endif + erts_mtx_init_x(&p->lock.link, "proc_link", p->common.id, do_lock_count); + ethr_mutex_lock(&p->lock.link.mtx); +#ifdef ERTS_ENABLE_LOCK_CHECK + erts_lc_trylock(1, &p->lock.link.lc); +#endif + erts_mtx_init_x(&p->lock.msgq, "proc_msgq", p->common.id, do_lock_count); + ethr_mutex_lock(&p->lock.msgq.mtx); +#ifdef ERTS_ENABLE_LOCK_CHECK + erts_lc_trylock(1, &p->lock.msgq.lc); +#endif + erts_mtx_init_x(&p->lock.status, "proc_status", p->common.id, + do_lock_count); + ethr_mutex_lock(&p->lock.status.mtx); +#ifdef ERTS_ENABLE_LOCK_CHECK + erts_lc_trylock(1, &p->lock.status.lc); +#endif #endif + erts_atomic32_init_nob(&p->lock.refc, 1); #ifdef ERTS_PROC_LOCK_DEBUG for (i = 0; i <= ERTS_PROC_LOCK_MAX_BIT; i++) erts_smp_atomic32_init_nob(&p->lock.locked[i], (erts_aint32_t) 1); #endif +#ifdef ERTS_ENABLE_LOCK_COUNT + erts_lcnt_proc_lock_init(p); + erts_lcnt_proc_lock(&(p->lock), ERTS_PROC_LOCKS_ALL); + erts_lcnt_proc_lock_post_x(&(p->lock), ERTS_PROC_LOCKS_ALL, __FILE__, __LINE__); +#endif +} + +void +erts_proc_lock_fin(Process *p) +{ +#if ERTS_PROC_LOCK_RAW_MUTEX_IMPL + erts_mtx_destroy(&p->lock.main); + erts_mtx_destroy(&p->lock.link); + erts_mtx_destroy(&p->lock.msgq); + erts_mtx_destroy(&p->lock.status); +#endif +#if defined(ERTS_ENABLE_LOCK_COUNT) && defined(ERTS_SMP) + erts_lcnt_proc_lock_destroy(p); +#endif } /* --- Process lock counting ----------------------------------------------- */ -#ifdef ERTS_ENABLE_LOCK_COUNT +#if ERTS_PROC_LOCK_OWN_IMPL && defined(ERTS_ENABLE_LOCK_COUNT) void erts_lcnt_proc_lock_init(Process *p) { if (erts_lcnt_rt_options & ERTS_LCNT_OPT_PROCLOCK) { - if (p->id != ERTS_INVALID_PID) { - erts_lcnt_init_lock_x(&(p->lock.lcnt_main), "proc_main", ERTS_LCNT_LT_PROCLOCK, p->id); - erts_lcnt_init_lock_x(&(p->lock.lcnt_msgq), "proc_msgq", ERTS_LCNT_LT_PROCLOCK, p->id); - erts_lcnt_init_lock_x(&(p->lock.lcnt_link), "proc_link", ERTS_LCNT_LT_PROCLOCK, p->id); - erts_lcnt_init_lock_x(&(p->lock.lcnt_status), "proc_status", ERTS_LCNT_LT_PROCLOCK, p->id); + if (p->common.id != ERTS_INVALID_PID) { + erts_lcnt_init_lock_x(&(p->lock.lcnt_main), "proc_main", ERTS_LCNT_LT_PROCLOCK, p->common.id); + erts_lcnt_init_lock_x(&(p->lock.lcnt_msgq), "proc_msgq", ERTS_LCNT_LT_PROCLOCK, p->common.id); + erts_lcnt_init_lock_x(&(p->lock.lcnt_link), "proc_link", ERTS_LCNT_LT_PROCLOCK, p->common.id); + erts_lcnt_init_lock_x(&(p->lock.lcnt_status), "proc_status", ERTS_LCNT_LT_PROCLOCK, p->common.id); } else { erts_lcnt_init_lock(&(p->lock.lcnt_main), "proc_main", ERTS_LCNT_LT_PROCLOCK); erts_lcnt_init_lock(&(p->lock.lcnt_msgq), "proc_msgq", ERTS_LCNT_LT_PROCLOCK); @@ -1023,11 +1188,12 @@ void erts_lcnt_proc_trylock(erts_proc_lock_t *lock, ErtsProcLocks locks, int res } -void erts_lcnt_enable_proc_lock_count(int enable) { - int i; +void erts_lcnt_enable_proc_lock_count(int enable) +{ + int i, max = erts_ptab_max(&erts_proc); - for (i = 0; i < erts_max_processes; ++i) { - Process* p = process_tab[i]; + for (i = 0; i < max; ++i) { + Process* p = erts_pix2proc(i); if (p) { if (enable) { if (!ERTS_LCNT_LOCK_TYPE(&(p->lock.lcnt_main))) { @@ -1049,51 +1215,54 @@ void erts_lcnt_enable_proc_lock_count(int enable) { #ifdef ERTS_ENABLE_LOCK_CHECK +#if ERTS_PROC_LOCK_OWN_IMPL + void -erts_proc_lc_lock(Process *p, ErtsProcLocks locks) +erts_proc_lc_lock(Process *p, ErtsProcLocks locks, char *file, unsigned int line) { erts_lc_lock_t lck = ERTS_LC_LOCK_INIT(-1, - p->id, + p->common.id, ERTS_LC_FLG_LT_PROCLOCK); if (locks & ERTS_PROC_LOCK_MAIN) { lck.id = lc_id.proc_lock_main; - erts_lc_lock(&lck); + erts_lc_lock_x(&lck,file,line); } if (locks & ERTS_PROC_LOCK_LINK) { lck.id = lc_id.proc_lock_link; - erts_lc_lock(&lck); + erts_lc_lock_x(&lck,file,line); } if (locks & ERTS_PROC_LOCK_MSGQ) { lck.id = lc_id.proc_lock_msgq; - erts_lc_lock(&lck); + erts_lc_lock_x(&lck,file,line); } if (locks & ERTS_PROC_LOCK_STATUS) { lck.id = lc_id.proc_lock_status; - erts_lc_lock(&lck); + erts_lc_lock_x(&lck,file,line); } } void -erts_proc_lc_trylock(Process *p, ErtsProcLocks locks, int locked) +erts_proc_lc_trylock(Process *p, ErtsProcLocks locks, int locked, + char* file, unsigned int line) { erts_lc_lock_t lck = ERTS_LC_LOCK_INIT(-1, - p->id, + p->common.id, ERTS_LC_FLG_LT_PROCLOCK); if (locks & ERTS_PROC_LOCK_MAIN) { lck.id = lc_id.proc_lock_main; - erts_lc_trylock(locked, &lck); + erts_lc_trylock_x(locked, &lck, file, line); } if (locks & ERTS_PROC_LOCK_LINK) { lck.id = lc_id.proc_lock_link; - erts_lc_trylock(locked, &lck); + erts_lc_trylock_x(locked, &lck, file, line); } if (locks & ERTS_PROC_LOCK_MSGQ) { lck.id = lc_id.proc_lock_msgq; - erts_lc_trylock(locked, &lck); + erts_lc_trylock_x(locked, &lck, file, line); } if (locks & ERTS_PROC_LOCK_STATUS) { lck.id = lc_id.proc_lock_status; - erts_lc_trylock(locked, &lck); + erts_lc_trylock_x(locked, &lck, file, line); } } @@ -1101,7 +1270,7 @@ void erts_proc_lc_unlock(Process *p, ErtsProcLocks locks) { erts_lc_lock_t lck = ERTS_LC_LOCK_INIT(-1, - p->id, + p->common.id, ERTS_LC_FLG_LT_PROCLOCK); if (locks & ERTS_PROC_LOCK_STATUS) { lck.id = lc_id.proc_lock_status; @@ -1121,11 +1290,14 @@ erts_proc_lc_unlock(Process *p, ErtsProcLocks locks) } } +#endif /* ERTS_PROC_LOCK_OWN_IMPL */ + void erts_proc_lc_might_unlock(Process *p, ErtsProcLocks locks) { +#if ERTS_PROC_LOCK_OWN_IMPL erts_lc_lock_t lck = ERTS_LC_LOCK_INIT(-1, - p->id, + p->common.id, ERTS_LC_FLG_LT_PROCLOCK); if (locks & ERTS_PROC_LOCK_STATUS) { lck.id = lc_id.proc_lock_status; @@ -1143,37 +1315,60 @@ erts_proc_lc_might_unlock(Process *p, ErtsProcLocks locks) lck.id = lc_id.proc_lock_main; erts_lc_might_unlock(&lck); } +#elif ERTS_PROC_LOCK_RAW_MUTEX_IMPL + if (locks & ERTS_PROC_LOCK_MAIN) + erts_lc_might_unlock(&p->lock.main.lc); + if (locks & ERTS_PROC_LOCK_LINK) + erts_lc_might_unlock(&p->lock.link.lc); + if (locks & ERTS_PROC_LOCK_MSGQ) + erts_lc_might_unlock(&p->lock.msgq.lc); + if (locks & ERTS_PROC_LOCK_STATUS) + erts_lc_might_unlock(&p->lock.status.lc); +#endif } void -erts_proc_lc_require_lock(Process *p, ErtsProcLocks locks) +erts_proc_lc_require_lock(Process *p, ErtsProcLocks locks, char *file, + unsigned int line) { +#if ERTS_PROC_LOCK_OWN_IMPL erts_lc_lock_t lck = ERTS_LC_LOCK_INIT(-1, - p->id, + p->common.id, ERTS_LC_FLG_LT_PROCLOCK); if (locks & ERTS_PROC_LOCK_MAIN) { lck.id = lc_id.proc_lock_main; - erts_lc_require_lock(&lck); + erts_lc_require_lock(&lck, file, line); } if (locks & ERTS_PROC_LOCK_LINK) { lck.id = lc_id.proc_lock_link; - erts_lc_require_lock(&lck); + erts_lc_require_lock(&lck, file, line); } if (locks & ERTS_PROC_LOCK_MSGQ) { lck.id = lc_id.proc_lock_msgq; - erts_lc_require_lock(&lck); + erts_lc_require_lock(&lck, file, line); } if (locks & ERTS_PROC_LOCK_STATUS) { lck.id = lc_id.proc_lock_status; - erts_lc_require_lock(&lck); - } + erts_lc_require_lock(&lck, file, line); + } +#elif ERTS_PROC_LOCK_RAW_MUTEX_IMPL + if (locks & ERTS_PROC_LOCK_MAIN) + erts_lc_require_lock(&p->lock.main.lc, file, line); + if (locks & ERTS_PROC_LOCK_LINK) + erts_lc_require_lock(&p->lock.link.lc, file, line); + if (locks & ERTS_PROC_LOCK_MSGQ) + erts_lc_require_lock(&p->lock.msgq.lc, file, line); + if (locks & ERTS_PROC_LOCK_STATUS) + erts_lc_require_lock(&p->lock.status.lc, file, line); +#endif } void erts_proc_lc_unrequire_lock(Process *p, ErtsProcLocks locks) { +#if ERTS_PROC_LOCK_OWN_IMPL erts_lc_lock_t lck = ERTS_LC_LOCK_INIT(-1, - p->id, + p->common.id, ERTS_LC_FLG_LT_PROCLOCK); if (locks & ERTS_PROC_LOCK_STATUS) { lck.id = lc_id.proc_lock_status; @@ -1191,15 +1386,26 @@ erts_proc_lc_unrequire_lock(Process *p, ErtsProcLocks locks) lck.id = lc_id.proc_lock_main; erts_lc_unrequire_lock(&lck); } +#elif ERTS_PROC_LOCK_RAW_MUTEX_IMPL + if (locks & ERTS_PROC_LOCK_MAIN) + erts_lc_unrequire_lock(&p->lock.main.lc); + if (locks & ERTS_PROC_LOCK_LINK) + erts_lc_unrequire_lock(&p->lock.link.lc); + if (locks & ERTS_PROC_LOCK_MSGQ) + erts_lc_unrequire_lock(&p->lock.msgq.lc); + if (locks & ERTS_PROC_LOCK_STATUS) + erts_lc_unrequire_lock(&p->lock.status.lc); +#endif } +#if ERTS_PROC_LOCK_OWN_IMPL int erts_proc_lc_trylock_force_busy(Process *p, ErtsProcLocks locks) { if (locks & ERTS_PROC_LOCKS_ALL) { erts_lc_lock_t lck = ERTS_LC_LOCK_INIT(-1, - p->id, + p->common.id, ERTS_LC_FLG_LT_PROCLOCK); if (locks & ERTS_PROC_LOCK_MAIN) @@ -1218,42 +1424,61 @@ erts_proc_lc_trylock_force_busy(Process *p, ErtsProcLocks locks) return 0; } +#endif /* ERTS_PROC_LOCK_OWN_IMPL */ + void erts_proc_lc_chk_only_proc_main(Process *p) { +#if ERTS_PROC_LOCK_OWN_IMPL erts_lc_lock_t proc_main = ERTS_LC_LOCK_INIT(lc_id.proc_lock_main, - p->id, + p->common.id, ERTS_LC_FLG_LT_PROCLOCK); erts_lc_check_exact(&proc_main, 1); +#elif ERTS_PROC_LOCK_RAW_MUTEX_IMPL + erts_lc_check_exact(&p->lock.main.lc, 1); +#endif } +#if ERTS_PROC_LOCK_OWN_IMPL #define ERTS_PROC_LC_EMPTY_LOCK_INIT \ ERTS_LC_LOCK_INIT(-1, THE_NON_VALUE, ERTS_LC_FLG_LT_PROCLOCK) +#endif /* ERTS_PROC_LOCK_OWN_IMPL */ void erts_proc_lc_chk_have_proc_locks(Process *p, ErtsProcLocks locks) { int have_locks_len = 0; +#if ERTS_PROC_LOCK_OWN_IMPL erts_lc_lock_t have_locks[4] = {ERTS_PROC_LC_EMPTY_LOCK_INIT, ERTS_PROC_LC_EMPTY_LOCK_INIT, ERTS_PROC_LC_EMPTY_LOCK_INIT, ERTS_PROC_LC_EMPTY_LOCK_INIT}; if (locks & ERTS_PROC_LOCK_MAIN) { have_locks[have_locks_len].id = lc_id.proc_lock_main; - have_locks[have_locks_len++].extra = p->id; + have_locks[have_locks_len++].extra = p->common.id; } if (locks & ERTS_PROC_LOCK_LINK) { have_locks[have_locks_len].id = lc_id.proc_lock_link; - have_locks[have_locks_len++].extra = p->id; + have_locks[have_locks_len++].extra = p->common.id; } if (locks & ERTS_PROC_LOCK_MSGQ) { have_locks[have_locks_len].id = lc_id.proc_lock_msgq; - have_locks[have_locks_len++].extra = p->id; + have_locks[have_locks_len++].extra = p->common.id; } if (locks & ERTS_PROC_LOCK_STATUS) { have_locks[have_locks_len].id = lc_id.proc_lock_status; - have_locks[have_locks_len++].extra = p->id; - } - + have_locks[have_locks_len++].extra = p->common.id; + } +#elif ERTS_PROC_LOCK_RAW_MUTEX_IMPL + erts_lc_lock_t have_locks[4]; + if (locks & ERTS_PROC_LOCK_MAIN) + have_locks[have_locks_len++] = p->lock.main.lc; + if (locks & ERTS_PROC_LOCK_LINK) + have_locks[have_locks_len++] = p->lock.link.lc; + if (locks & ERTS_PROC_LOCK_MSGQ) + have_locks[have_locks_len++] = p->lock.msgq.lc; + if (locks & ERTS_PROC_LOCK_STATUS) + have_locks[have_locks_len++] = p->lock.status.lc; +#endif erts_lc_check(have_locks, have_locks_len, NULL, 0); } @@ -1262,6 +1487,7 @@ erts_proc_lc_chk_proc_locks(Process *p, ErtsProcLocks locks) { int have_locks_len = 0; int have_not_locks_len = 0; +#if ERTS_PROC_LOCK_OWN_IMPL erts_lc_lock_t have_locks[4] = {ERTS_PROC_LC_EMPTY_LOCK_INIT, ERTS_PROC_LC_EMPTY_LOCK_INIT, ERTS_PROC_LC_EMPTY_LOCK_INIT, @@ -1273,36 +1499,57 @@ erts_proc_lc_chk_proc_locks(Process *p, ErtsProcLocks locks) if (locks & ERTS_PROC_LOCK_MAIN) { have_locks[have_locks_len].id = lc_id.proc_lock_main; - have_locks[have_locks_len++].extra = p->id; + have_locks[have_locks_len++].extra = p->common.id; } else { have_not_locks[have_not_locks_len].id = lc_id.proc_lock_main; - have_not_locks[have_not_locks_len++].extra = p->id; + have_not_locks[have_not_locks_len++].extra = p->common.id; } if (locks & ERTS_PROC_LOCK_LINK) { have_locks[have_locks_len].id = lc_id.proc_lock_link; - have_locks[have_locks_len++].extra = p->id; + have_locks[have_locks_len++].extra = p->common.id; } else { have_not_locks[have_not_locks_len].id = lc_id.proc_lock_link; - have_not_locks[have_not_locks_len++].extra = p->id; + have_not_locks[have_not_locks_len++].extra = p->common.id; } if (locks & ERTS_PROC_LOCK_MSGQ) { have_locks[have_locks_len].id = lc_id.proc_lock_msgq; - have_locks[have_locks_len++].extra = p->id; + have_locks[have_locks_len++].extra = p->common.id; } else { have_not_locks[have_not_locks_len].id = lc_id.proc_lock_msgq; - have_not_locks[have_not_locks_len++].extra = p->id; + have_not_locks[have_not_locks_len++].extra = p->common.id; } if (locks & ERTS_PROC_LOCK_STATUS) { have_locks[have_locks_len].id = lc_id.proc_lock_status; - have_locks[have_locks_len++].extra = p->id; + have_locks[have_locks_len++].extra = p->common.id; } else { have_not_locks[have_not_locks_len].id = lc_id.proc_lock_status; - have_not_locks[have_not_locks_len++].extra = p->id; + have_not_locks[have_not_locks_len++].extra = p->common.id; } +#elif ERTS_PROC_LOCK_RAW_MUTEX_IMPL + erts_lc_lock_t have_locks[4]; + erts_lc_lock_t have_not_locks[4]; + + if (locks & ERTS_PROC_LOCK_MAIN) + have_locks[have_locks_len++] = p->lock.main.lc; + else + have_not_locks[have_not_locks_len++] = p->lock.main.lc; + if (locks & ERTS_PROC_LOCK_LINK) + have_locks[have_locks_len++] = p->lock.link.lc; + else + have_not_locks[have_not_locks_len++] = p->lock.link.lc; + if (locks & ERTS_PROC_LOCK_MSGQ) + have_locks[have_locks_len++] = p->lock.msgq.lc; + else + have_not_locks[have_not_locks_len++] = p->lock.msgq.lc; + if (locks & ERTS_PROC_LOCK_STATUS) + have_locks[have_locks_len++] = p->lock.status.lc; + else + have_not_locks[have_not_locks_len++] = p->lock.status.lc; +#endif erts_lc_check(have_locks, have_locks_len, have_not_locks, have_not_locks_len); @@ -1312,20 +1559,26 @@ ErtsProcLocks erts_proc_lc_my_proc_locks(Process *p) { int resv[4]; + ErtsProcLocks res = 0; +#if ERTS_PROC_LOCK_OWN_IMPL erts_lc_lock_t locks[4] = {ERTS_LC_LOCK_INIT(lc_id.proc_lock_main, - p->id, + p->common.id, ERTS_LC_FLG_LT_PROCLOCK), ERTS_LC_LOCK_INIT(lc_id.proc_lock_link, - p->id, + p->common.id, ERTS_LC_FLG_LT_PROCLOCK), ERTS_LC_LOCK_INIT(lc_id.proc_lock_msgq, - p->id, + p->common.id, ERTS_LC_FLG_LT_PROCLOCK), ERTS_LC_LOCK_INIT(lc_id.proc_lock_status, - p->id, + p->common.id, ERTS_LC_FLG_LT_PROCLOCK)}; - - ErtsProcLocks res = 0; +#elif ERTS_PROC_LOCK_RAW_MUTEX_IMPL + erts_lc_lock_t locks[4] = {p->lock.main.lc, + p->lock.link.lc, + p->lock.msgq.lc, + p->lock.status.lc}; +#endif erts_lc_have_locks(resv, locks, 4); if (resv[0]) @@ -1358,7 +1611,7 @@ erts_proc_lc_chk_no_proc_locks(char *file, int line) #endif /* #ifdef ERTS_ENABLE_LOCK_CHECK */ -#ifdef ERTS_PROC_LOCK_HARD_DEBUG +#if ERTS_PROC_LOCK_OWN_IMPL && defined(ERTS_PROC_LOCK_HARD_DEBUG) void check_queue(erts_proc_lock_t *lck) { @@ -1391,4 +1644,4 @@ check_queue(erts_proc_lock_t *lck) } #endif -#endif /* ERTS_SMP (the whole file) */ +#endif /* ERTS_SMP */ diff --git a/erts/emulator/beam/erl_process_lock.h b/erts/emulator/beam/erl_process_lock.h index 062b8366d3..052d992d3f 100644 --- a/erts/emulator/beam/erl_process_lock.h +++ b/erts/emulator/beam/erl_process_lock.h @@ -37,10 +37,21 @@ #include "erl_smp.h" +#if defined(VALGRIND) || defined(ETHR_DISABLE_NATIVE_IMPLS) +# define ERTS_PROC_LOCK_OWN_IMPL 0 +#else +# define ERTS_PROC_LOCK_OWN_IMPL 1 +#endif + #define ERTS_PROC_LOCK_ATOMIC_IMPL 0 #define ERTS_PROC_LOCK_SPINLOCK_IMPL 0 #define ERTS_PROC_LOCK_MUTEX_IMPL 0 +#if !ERTS_PROC_LOCK_OWN_IMPL +#define ERTS_PROC_LOCK_RAW_MUTEX_IMPL 1 +#else +#define ERTS_PROC_LOCK_RAW_MUTEX_IMPL 0 + #if defined(ETHR_HAVE_32BIT_NATIVE_ATOMIC_OPS) # undef ERTS_PROC_LOCK_ATOMIC_IMPL # define ERTS_PROC_LOCK_ATOMIC_IMPL 1 @@ -52,27 +63,38 @@ # define ERTS_PROC_LOCK_MUTEX_IMPL 1 #endif +#endif + #define ERTS_PROC_LOCK_MAX_BIT 3 typedef erts_aint32_t ErtsProcLocks; typedef struct erts_proc_lock_t_ { +#if ERTS_PROC_LOCK_OWN_IMPL #if ERTS_PROC_LOCK_ATOMIC_IMPL erts_smp_atomic32_t flags; #else ErtsProcLocks flags; #endif erts_tse_t *queue[ERTS_PROC_LOCK_MAX_BIT+1]; - Sint32 refc; -#ifdef ERTS_PROC_LOCK_DEBUG - erts_smp_atomic32_t locked[ERTS_PROC_LOCK_MAX_BIT+1]; -#endif #ifdef ERTS_ENABLE_LOCK_COUNT erts_lcnt_lock_t lcnt_main; erts_lcnt_lock_t lcnt_link; erts_lcnt_lock_t lcnt_msgq; erts_lcnt_lock_t lcnt_status; #endif +#elif ERTS_PROC_LOCK_RAW_MUTEX_IMPL + erts_mtx_t main; + erts_mtx_t link; + erts_mtx_t msgq; + erts_mtx_t status; +#else +# error "no implementation" +#endif + erts_atomic32_t refc; +#ifdef ERTS_PROC_LOCK_DEBUG + erts_smp_atomic32_t locked[ERTS_PROC_LOCK_MAX_BIT+1]; +#endif } erts_proc_lock_t; /* Process lock flags */ @@ -105,11 +127,9 @@ typedef struct erts_proc_lock_t_ { /* * Status lock: * Protects the following fields in the process structure: - * * status - * * rstatus - * * status_flags * * pending_suspenders * * suspendee + * * ... */ #define ERTS_PROC_LOCK_STATUS (((ErtsProcLocks) 1) << ERTS_PROC_LOCK_MAX_BIT) @@ -141,14 +161,11 @@ typedef struct erts_proc_lock_t_ { * Other rules regarding process locking: * * Exiting processes: - * When changing status to P_EXITING on a process, you are required - * to take all process locks (ERTS_PROC_LOCKS_ALL). Thus, by holding - * at least one process lock (whichever one doesn't matter) you - * are guaranteed that the process won't exit until the lock you are - * holding has been released. Appart from all process locks also - * the pix lock corresponding to the process has to be held. - * At the same time as status is changed to P_EXITING, also the - * field 'is_exiting' in the process structure is set to a value != 0. + * When changing state to exiting (ERTS_PSFLG_EXITING) on a process, + * you are required to take all process locks (ERTS_PROC_LOCKS_ALL). + * Thus, by holding at least one process lock (whichever one doesn't + * matter) you are guaranteed that the process won't exit until the + * lock you are holding has been released. * * Lock order: * Process locks with low numeric values has to be locked before @@ -159,8 +176,8 @@ typedef struct erts_proc_lock_t_ { * on multiple processes, locks on processes with low process ids * have to be locked before locks on processes with high process * ids. E.g., if the main and the message queue locks are to be - * locked on processes p1 and p2 and p1->id < p2->id, then locks - * should be locked in the following order: + * locked on processes p1 and p2 and p1->common.id < p2->common.id, + * then locks should be locked in the following order: * 1. main lock on p1 * 2. main lock on p2 * 3. message queue lock on p1 @@ -186,7 +203,7 @@ typedef struct erts_proc_lock_t_ { & ~ERTS_PROC_LOCK_MAIN) -#define ERTS_PIX_LOCKS_BITS 8 +#define ERTS_PIX_LOCKS_BITS 10 #define ERTS_NO_OF_PIX_LOCKS (1 << ERTS_PIX_LOCKS_BITS) @@ -198,7 +215,7 @@ typedef struct erts_proc_lock_t_ { /* Lock counter implemetation */ -#ifdef ERTS_ENABLE_LOCK_COUNT +#ifdef ERTS_ENABLE_LOCK_POSITION #define erts_smp_proc_lock__(P,I,L) erts_smp_proc_lock_x__(P,I,L,__FILE__,__LINE__) #define erts_smp_proc_lock(P,L) erts_smp_proc_lock_x(P,L,__FILE__,__LINE__) #endif @@ -226,8 +243,10 @@ void erts_lcnt_enable_proc_lock_count(int enable); erts_proc_lc_chk_no_proc_locks(__FILE__, __LINE__) #define ERTS_SMP_CHK_HAVE_ONLY_MAIN_PROC_LOCK(P) \ erts_proc_lc_chk_only_proc_main((P)) -void erts_proc_lc_lock(Process *p, ErtsProcLocks locks); -void erts_proc_lc_trylock(Process *p, ErtsProcLocks locks, int locked); +void erts_proc_lc_lock(Process *p, ErtsProcLocks locks, + char *file, unsigned int line); +void erts_proc_lc_trylock(Process *p, ErtsProcLocks locks, int locked, + char *file, unsigned int line); void erts_proc_lc_unlock(Process *p, ErtsProcLocks locks); void erts_proc_lc_might_unlock(Process *p, ErtsProcLocks locks); void erts_proc_lc_chk_have_proc_locks(Process *p, ErtsProcLocks locks); @@ -236,7 +255,8 @@ void erts_proc_lc_chk_only_proc_main(Process *p); void erts_proc_lc_chk_no_proc_locks(char *file, int line); ErtsProcLocks erts_proc_lc_my_proc_locks(Process *p); int erts_proc_lc_trylock_force_busy(Process *p, ErtsProcLocks locks); -void erts_proc_lc_require_lock(Process *p, ErtsProcLocks locks); +void erts_proc_lc_require_lock(Process *p, ErtsProcLocks locks, + char* file, unsigned int line); void erts_proc_lc_unrequire_lock(Process *p, ErtsProcLocks locks); #else #define ERTS_SMP_CHK_NO_PROC_LOCKS @@ -260,12 +280,10 @@ typedef struct { } u; } erts_pix_lock_t; -#define ERTS_PIX2PIXLOCKIX(PIX) \ - ((PIX) & ((1 << ERTS_PIX_LOCKS_BITS) - 1)) -#define ERTS_PIX2PIXLOCK(PIX) \ - (&erts_pix_locks[ERTS_PIX2PIXLOCKIX((PIX))]) #define ERTS_PID2PIXLOCK(PID) \ - ERTS_PIX2PIXLOCK(internal_pid_data((PID))) + (&erts_pix_locks[(internal_pid_data((PID)) & ((1 << ERTS_PIX_LOCKS_BITS) - 1))]) + +#if ERTS_PROC_LOCK_OWN_IMPL #if ERTS_PROC_LOCK_ATOMIC_IMPL @@ -335,11 +353,13 @@ erts_proc_lock_flags_cmpxchg(erts_proc_lock_t *lck, ErtsProcLocks new, #define ERTS_PROC_LOCK_FLGS_READ_(L) ((L)->flags) #endif /* end no opt atomic ops */ +#endif /* ERTS_PROC_LOCK_OWN_IMPL */ extern erts_pix_lock_t erts_pix_locks[ERTS_NO_OF_PIX_LOCKS]; void erts_init_proc_lock(int cpus); void erts_proc_lock_prepare_proc_lock_waiter(void); +#if ERTS_PROC_LOCK_OWN_IMPL void erts_proc_lock_failed(Process *, erts_pix_lock_t *, ErtsProcLocks, @@ -347,6 +367,7 @@ void erts_proc_lock_failed(Process *, void erts_proc_unlock_failed(Process *, erts_pix_lock_t *, ErtsProcLocks); +#endif ERTS_GLB_INLINE void erts_pix_lock(erts_pix_lock_t *); ERTS_GLB_INLINE void erts_pix_unlock(erts_pix_lock_t *); @@ -354,7 +375,7 @@ ERTS_GLB_INLINE int erts_lc_pix_lock_is_locked(erts_pix_lock_t *); ERTS_GLB_INLINE ErtsProcLocks erts_smp_proc_raw_trylock__(Process *p, ErtsProcLocks locks); -#ifdef ERTS_ENABLE_LOCK_COUNT +#ifdef ERTS_ENABLE_LOCK_POSITION ERTS_GLB_INLINE void erts_smp_proc_lock_x__(Process *, erts_pix_lock_t *, ErtsProcLocks, @@ -410,6 +431,7 @@ ERTS_GLB_INLINE int erts_lc_pix_lock_is_locked(erts_pix_lock_t *pixlck) ERTS_GLB_INLINE ErtsProcLocks erts_smp_proc_raw_trylock__(Process *p, ErtsProcLocks locks) { +#if ERTS_PROC_LOCK_OWN_IMPL ErtsProcLocks expct_lflgs = 0; while (1) { @@ -429,11 +451,41 @@ erts_smp_proc_raw_trylock__(Process *p, ErtsProcLocks locks) /* cmpxchg failed, try again (should be rare). */ expct_lflgs = lflgs; } -} +#elif ERTS_PROC_LOCK_RAW_MUTEX_IMPL + + if (locks & ERTS_PROC_LOCK_MAIN) + if (erts_mtx_trylock(&p->lock.main) == EBUSY) + goto busy_main; + if (locks & ERTS_PROC_LOCK_LINK) + if (erts_mtx_trylock(&p->lock.link) == EBUSY) + goto busy_link; + if (locks & ERTS_PROC_LOCK_MSGQ) + if (erts_mtx_trylock(&p->lock.msgq) == EBUSY) + goto busy_msgq; + if (locks & ERTS_PROC_LOCK_STATUS) + if (erts_mtx_trylock(&p->lock.status) == EBUSY) + goto busy_status; + + return 0; + +busy_status: + if (locks & ERTS_PROC_LOCK_MSGQ) + erts_mtx_unlock(&p->lock.msgq); +busy_msgq: + if (locks & ERTS_PROC_LOCK_LINK) + erts_mtx_unlock(&p->lock.link); +busy_link: + if (locks & ERTS_PROC_LOCK_MAIN) + erts_mtx_unlock(&p->lock.main); +busy_main: + + return EBUSY; +#endif +} ERTS_GLB_INLINE void -#ifdef ERTS_ENABLE_LOCK_COUNT +#ifdef ERTS_ENABLE_LOCK_POSITION erts_smp_proc_lock_x__(Process *p, erts_pix_lock_t *pix_lck, ErtsProcLocks locks, @@ -444,10 +496,13 @@ erts_smp_proc_lock__(Process *p, ErtsProcLocks locks) #endif { +#if ERTS_PROC_LOCK_OWN_IMPL + ErtsProcLocks old_lflgs; #if !ERTS_PROC_LOCK_ATOMIC_IMPL erts_pix_lock(pix_lck); #endif + #ifdef ERTS_ENABLE_LOCK_COUNT erts_lcnt_proc_lock(&(p->lock), locks); #endif @@ -471,12 +526,14 @@ erts_smp_proc_lock__(Process *p, erts_pix_unlock(pix_lck); } #endif + #ifdef ERTS_ENABLE_LOCK_COUNT erts_lcnt_proc_lock_post_x(&(p->lock), locks, file, line); #endif #ifdef ERTS_ENABLE_LOCK_CHECK - erts_proc_lc_lock(p, locks); + erts_proc_lc_lock(p, locks, file, line); #endif + #ifdef ERTS_PROC_LOCK_DEBUG erts_proc_lock_op_debug(p, locks, 1); #endif @@ -484,6 +541,22 @@ erts_smp_proc_lock__(Process *p, #if ERTS_PROC_LOCK_ATOMIC_IMPL ETHR_COMPILER_BARRIER; #endif + +#elif ERTS_PROC_LOCK_RAW_MUTEX_IMPL + if (locks & ERTS_PROC_LOCK_MAIN) + erts_mtx_lock(&p->lock.main); + if (locks & ERTS_PROC_LOCK_LINK) + erts_mtx_lock(&p->lock.link); + if (locks & ERTS_PROC_LOCK_MSGQ) + erts_mtx_lock(&p->lock.msgq); + if (locks & ERTS_PROC_LOCK_STATUS) + erts_mtx_lock(&p->lock.status); + +#ifdef ERTS_PROC_LOCK_DEBUG + erts_proc_lock_op_debug(p, locks, 1); +#endif + +#endif } ERTS_GLB_INLINE void @@ -491,6 +564,7 @@ erts_smp_proc_unlock__(Process *p, erts_pix_lock_t *pix_lck, ErtsProcLocks locks) { +#if ERTS_PROC_LOCK_OWN_IMPL ErtsProcLocks old_lflgs; #if ERTS_PROC_LOCK_ATOMIC_IMPL @@ -555,6 +629,23 @@ erts_smp_proc_unlock__(Process *p, break; } + +#elif ERTS_PROC_LOCK_RAW_MUTEX_IMPL + +#ifdef ERTS_PROC_LOCK_DEBUG + erts_proc_lock_op_debug(p, locks, 0); +#endif + + if (locks & ERTS_PROC_LOCK_STATUS) + erts_mtx_unlock(&p->lock.status); + if (locks & ERTS_PROC_LOCK_MSGQ) + erts_mtx_unlock(&p->lock.msgq); + if (locks & ERTS_PROC_LOCK_LINK) + erts_mtx_unlock(&p->lock.link); + if (locks & ERTS_PROC_LOCK_MAIN) + erts_mtx_unlock(&p->lock.main); +#endif + } ERTS_GLB_INLINE int @@ -562,6 +653,7 @@ erts_smp_proc_trylock__(Process *p, erts_pix_lock_t *pix_lck, ErtsProcLocks locks) { +#if ERTS_PROC_LOCK_OWN_IMPL int res; #ifdef ERTS_ENABLE_LOCK_CHECK @@ -573,6 +665,7 @@ erts_smp_proc_trylock__(Process *p, else #endif { + #if !ERTS_PROC_LOCK_ATOMIC_IMPL erts_pix_lock(pix_lck); #endif @@ -605,14 +698,24 @@ erts_smp_proc_trylock__(Process *p, #endif #ifdef ERTS_ENABLE_LOCK_CHECK - erts_proc_lc_trylock(p, locks, res == 0); + erts_proc_lc_trylock(p, locks, res == 0, __FILE__, __LINE__); #endif #if ERTS_PROC_LOCK_ATOMIC_IMPL ETHR_COMPILER_BARRIER; #endif - return res; + +#elif ERTS_PROC_LOCK_RAW_MUTEX_IMPL + if (erts_smp_proc_raw_trylock__(p, locks) != 0) + return EBUSY; + else { +#ifdef ERTS_PROC_LOCK_DEBUG + erts_proc_lock_op_debug(p, locks, 1); +#endif + return 0; + } +#endif } #ifdef ERTS_PROC_LOCK_DEBUG @@ -641,7 +744,7 @@ erts_proc_lock_op_debug(Process *p, ErtsProcLocks locks, int locked) #endif /* ERTS_SMP */ -#ifdef ERTS_ENABLE_LOCK_COUNT +#ifdef ERTS_ENABLE_LOCK_POSITION ERTS_GLB_INLINE void erts_smp_proc_lock_x(Process *, ErtsProcLocks, char *file, unsigned int line); #else ERTS_GLB_INLINE void erts_smp_proc_lock(Process *, ErtsProcLocks); @@ -656,18 +759,18 @@ ERTS_GLB_INLINE void erts_smp_proc_add_refc(Process *, Sint32); #if ERTS_GLB_INLINE_INCL_FUNC_DEF ERTS_GLB_INLINE void -#ifdef ERTS_ENABLE_LOCK_COUNT +#ifdef ERTS_ENABLE_LOCK_POSITION erts_smp_proc_lock_x(Process *p, ErtsProcLocks locks, char *file, unsigned int line) #else erts_smp_proc_lock(Process *p, ErtsProcLocks locks) #endif { -#if defined(ERTS_SMP) && defined(ERTS_ENABLE_LOCK_COUNT) +#if defined(ERTS_SMP) && defined(ERTS_ENABLE_LOCK_POSITION) erts_smp_proc_lock_x__(p, #if ERTS_PROC_LOCK_ATOMIC_IMPL NULL, #else - ERTS_PID2PIXLOCK(p->id), + ERTS_PID2PIXLOCK(p->common.id), #endif /*ERTS_PROC_LOCK_ATOMIC_IMPL*/ locks, file, line); #elif defined(ERTS_SMP) @@ -675,7 +778,7 @@ erts_smp_proc_lock(Process *p, ErtsProcLocks locks) #if ERTS_PROC_LOCK_ATOMIC_IMPL NULL, #else - ERTS_PID2PIXLOCK(p->id), + ERTS_PID2PIXLOCK(p->common.id), #endif /*ERTS_PROC_LOCK_ATOMIC_IMPL*/ locks); #endif /*ERTS_SMP*/ @@ -689,7 +792,7 @@ erts_smp_proc_unlock(Process *p, ErtsProcLocks locks) #if ERTS_PROC_LOCK_ATOMIC_IMPL NULL, #else - ERTS_PID2PIXLOCK(p->id), + ERTS_PID2PIXLOCK(p->common.id), #endif locks); #endif @@ -705,50 +808,34 @@ erts_smp_proc_trylock(Process *p, ErtsProcLocks locks) #if ERTS_PROC_LOCK_ATOMIC_IMPL NULL, #else - ERTS_PID2PIXLOCK(p->id), + ERTS_PID2PIXLOCK(p->common.id), #endif locks); #endif } - ERTS_GLB_INLINE void erts_smp_proc_inc_refc(Process *p) { #ifdef ERTS_SMP - erts_pix_lock_t *pixlck = ERTS_PID2PIXLOCK(p->id); - erts_pix_lock(pixlck); - ERTS_LC_ASSERT(p->lock.refc > 0); - p->lock.refc++; - erts_pix_unlock(pixlck); + erts_ptab_inc_refc(&p->common); #endif } ERTS_GLB_INLINE void erts_smp_proc_dec_refc(Process *p) { #ifdef ERTS_SMP - Process *fp; - erts_pix_lock_t *pixlck = ERTS_PID2PIXLOCK(p->id); - erts_pix_lock(pixlck); - ERTS_LC_ASSERT(p->lock.refc > 0); - fp = --p->lock.refc == 0 ? p : NULL; - erts_pix_unlock(pixlck); - if (fp) - erts_free_proc(fp); + int referred = erts_ptab_dec_test_refc(&p->common); + if (!referred) + erts_free_proc(p); #endif } -ERTS_GLB_INLINE void erts_smp_proc_add_refc(Process *p, Sint32 refc) +ERTS_GLB_INLINE void erts_smp_proc_add_refc(Process *p, Sint32 add_refc) { #ifdef ERTS_SMP - Process *fp; - erts_pix_lock_t *pixlck = ERTS_PID2PIXLOCK(p->id); - erts_pix_lock(pixlck); - ERTS_LC_ASSERT(p->lock.refc > 0); - p->lock.refc += refc; - fp = p->lock.refc == 0 ? p : NULL; - erts_pix_unlock(pixlck); - if (fp) - erts_free_proc(fp); + int referred = erts_ptab_add_test_refc(&p->common, add_refc); + if (!referred) + erts_free_proc(p); #endif } @@ -756,6 +843,7 @@ ERTS_GLB_INLINE void erts_smp_proc_add_refc(Process *p, Sint32 refc) #ifdef ERTS_SMP void erts_proc_lock_init(Process *); +void erts_proc_lock_fin(Process *); void erts_proc_safelock(Process *a_proc, ErtsProcLocks a_have_locks, ErtsProcLocks a_need_locks, @@ -782,217 +870,71 @@ void erts_proc_safelock(Process *a_proc, #define ERTS_P2P_FLG_TRY_LOCK (1 << 1) #define ERTS_P2P_FLG_SMP_INC_REFC (1 << 2) -#define ERTS_PROC_LOCK_BUSY ((Process *) &erts_proc_lock_busy) -extern const Process erts_proc_lock_busy; +#define ERTS_PROC_LOCK_BUSY ((Process *) &erts_invalid_process) #define erts_pid2proc(PROC, HL, PID, NL) \ erts_pid2proc_opt((PROC), (HL), (PID), (NL), 0) -ERTS_GLB_INLINE Process * -erts_pid2proc_opt(Process *, ErtsProcLocks, Eterm, ErtsProcLocks, int); -#ifdef ERTS_SMP -void -erts_pid2proc_safelock(Process *c_p, - ErtsProcLocks c_p_have_locks, - Process **proc, - ErtsProcLocks need_locks, - erts_pix_lock_t *pix_lock, - int flags); -ERTS_GLB_INLINE Process *erts_pid2proc_unlocked_opt(Eterm pid, int flags); -#define erts_pid2proc_unlocked(PID) erts_pid2proc_unlocked_opt((PID), 0) -#else -#define erts_pid2proc_unlocked_opt(PID, FLGS) \ - erts_pid2proc_opt(NULL, 0, (PID), 0, FLGS) -#define erts_pid2proc_unlocked(PID) erts_pid2proc_opt(NULL, 0, (PID), 0, 0) +ERTS_GLB_INLINE Process *erts_pix2proc(int ix); +ERTS_GLB_INLINE Process *erts_proc_lookup_raw(Eterm pid); +ERTS_GLB_INLINE Process *erts_proc_lookup(Eterm pid); + +#ifndef ERTS_SMP +ERTS_GLB_INLINE #endif +Process *erts_pid2proc_opt(Process *, ErtsProcLocks, Eterm, ErtsProcLocks, int); #if ERTS_GLB_INLINE_INCL_FUNC_DEF -ERTS_GLB_INLINE Process * -#ifdef ERTS_SMP -erts_pid2proc_unlocked_opt(Eterm pid, int flags) -#else -erts_pid2proc_opt(Process *c_p_unused, - ErtsProcLocks c_p_have_locks_unused, - Eterm pid, - ErtsProcLocks pid_need_locks_unused, - int flags) -#endif +ERTS_GLB_INLINE Process *erts_pix2proc(int ix) { - Uint pix; Process *proc; + ASSERT(0 <= ix && ix < erts_ptab_max(&erts_proc)); + proc = (Process *) erts_ptab_pix2intptr_nob(&erts_proc, ix); + return proc == ERTS_PROC_LOCK_BUSY ? NULL : proc; +} + +ERTS_GLB_INLINE Process *erts_proc_lookup_raw(Eterm pid) +{ + Process *proc; + + ERTS_SMP_LC_ASSERT(erts_thr_progress_lc_is_delaying()); if (is_not_internal_pid(pid)) return NULL; - pix = internal_pid_index(pid); - if(pix >= erts_max_processes) + + proc = (Process *) erts_ptab_pix2intptr_ddrb(&erts_proc, + internal_pid_index(pid)); + if (proc && proc->common.id != pid) return NULL; - proc = process_tab[pix]; - if (proc) { - if (proc->id != pid - || (!(flags & ERTS_P2P_FLG_ALLOW_OTHER_X) - && proc->status == P_EXITING)) - proc = NULL; - } return proc; } -#ifdef ERTS_SMP +ERTS_GLB_INLINE Process *erts_proc_lookup(Eterm pid) +{ + Process *proc = erts_proc_lookup_raw(pid); + if (proc && ERTS_PROC_IS_EXITING(proc)) + return NULL; + return proc; +} +#ifndef ERTS_SMP ERTS_GLB_INLINE Process * -erts_pid2proc_opt(Process *c_p, - ErtsProcLocks c_p_have_locks, +erts_pid2proc_opt(Process *c_p_unused, + ErtsProcLocks c_p_have_locks_unused, Eterm pid, - ErtsProcLocks pid_need_locks, + ErtsProcLocks pid_need_locks_unused, int flags) { - erts_pix_lock_t *pix_lock; - ErtsProcLocks need_locks; - Uint pix; - Process *proc; -#ifdef ERTS_ENABLE_LOCK_COUNT - ErtsProcLocks lcnt_locks; -#endif - -#ifdef ERTS_ENABLE_LOCK_CHECK - if (c_p) { - ErtsProcLocks might_unlock = c_p_have_locks & pid_need_locks; - if (might_unlock) - erts_proc_lc_might_unlock(c_p, might_unlock); - } -#endif - if (is_not_internal_pid(pid)) { - proc = NULL; - goto done; - } - pix = internal_pid_index(pid); - if(pix >= erts_max_processes) { - proc = NULL; - goto done; - } - - ERTS_LC_ASSERT((pid_need_locks & ERTS_PROC_LOCKS_ALL) == pid_need_locks); - need_locks = pid_need_locks; - - pix_lock = ERTS_PIX2PIXLOCK(pix); - - if (c_p && c_p->id == pid) { - ASSERT(c_p->id != ERTS_INVALID_PID); - ASSERT(c_p == process_tab[pix]); - if (!(flags & ERTS_P2P_FLG_ALLOW_OTHER_X) && c_p->is_exiting) { - proc = NULL; - goto done; - } - need_locks &= ~c_p_have_locks; - if (!need_locks) { - proc = c_p; - erts_pix_lock(pix_lock); - if (flags & ERTS_P2P_FLG_SMP_INC_REFC) - proc->lock.refc++; - erts_pix_unlock(pix_lock); - goto done; - } - } - - erts_pix_lock(pix_lock); - - proc = process_tab[pix]; - if (proc) { - if (proc->id != pid || (!(flags & ERTS_P2P_FLG_ALLOW_OTHER_X) - && ERTS_PROC_IS_EXITING(proc))) { - proc = NULL; - } - else if (!need_locks) { - if (flags & ERTS_P2P_FLG_SMP_INC_REFC) - proc->lock.refc++; - } - else { - int busy; - -#ifdef ERTS_ENABLE_LOCK_COUNT - lcnt_locks = need_locks; - if (!(flags & ERTS_P2P_FLG_TRY_LOCK)) { - erts_lcnt_proc_lock(&proc->lock, need_locks); - } -#endif - -#ifdef ERTS_ENABLE_LOCK_CHECK - /* Make sure erts_pid2proc_safelock() is enough to handle - a potential lock order violation situation... */ - busy = erts_proc_lc_trylock_force_busy(proc, need_locks); - if (!busy) -#endif - { - /* Try a quick trylock to grab all the locks we need. */ - busy = (int) erts_smp_proc_raw_trylock__(proc, need_locks); -#ifdef ERTS_ENABLE_LOCK_CHECK - erts_proc_lc_trylock(proc, need_locks, !busy); -#endif -#ifdef ERTS_PROC_LOCK_DEBUG - if (!busy) - erts_proc_lock_op_debug(proc, need_locks, 1); -#endif - } - -#ifdef ERTS_ENABLE_LOCK_COUNT - if (flags & ERTS_P2P_FLG_TRY_LOCK) { - if (busy) { - erts_lcnt_proc_trylock(&proc->lock, need_locks, EBUSY); - } else { - erts_lcnt_proc_trylock(&proc->lock, need_locks, 0); - } - } -#endif - if (!busy) { - if (flags & ERTS_P2P_FLG_SMP_INC_REFC) - proc->lock.refc++; -#ifdef ERTS_ENABLE_LOCK_COUNT - /* all is great */ - if (!(flags & ERTS_P2P_FLG_TRY_LOCK)) { - erts_lcnt_proc_lock_post_x(&proc->lock, lcnt_locks, __FILE__, __LINE__); - } -#endif - } - else { - if (flags & ERTS_P2P_FLG_TRY_LOCK) - proc = ERTS_PROC_LOCK_BUSY; - else { -#ifdef ERTS_ENABLE_LOCK_COUNT - erts_lcnt_proc_lock_unaquire(&proc->lock, lcnt_locks); -#endif - erts_pid2proc_safelock(c_p, - c_p_have_locks, - &proc, - pid_need_locks, - pix_lock, - flags); - if (proc && (flags & ERTS_P2P_FLG_SMP_INC_REFC)) - proc->lock.refc++; - } - } - } - } - - erts_pix_unlock(pix_lock); -#ifdef ERTS_PROC_LOCK_DEBUG - ERTS_LC_ASSERT(!proc - || proc == ERTS_PROC_LOCK_BUSY - || (pid_need_locks == - (ERTS_PROC_LOCK_FLGS_READ_(&proc->lock) - & pid_need_locks))); -#endif - - - done: - -#if ERTS_PROC_LOCK_ATOMIC_IMPL - ETHR_COMPILER_BARRIER; -#endif - - return proc; + Process *proc = erts_proc_lookup_raw(pid); + return ((!(flags & ERTS_P2P_FLG_ALLOW_OTHER_X) + && proc + && ERTS_PROC_IS_EXITING(proc)) + ? NULL + : proc); } -#endif /* ERTS_SMP */ +#endif /* !ERTS_SMP */ #endif /* #if ERTS_GLB_INLINE_INCL_FUNC_DEF */ diff --git a/erts/emulator/beam/erl_ptab.c b/erts/emulator/beam/erl_ptab.c new file mode 100644 index 0000000000..eabf016081 --- /dev/null +++ b/erts/emulator/beam/erl_ptab.c @@ -0,0 +1,1773 @@ +/* + * %CopyrightBegin% + * + * Copyright Ericsson AB 2012-2013. All Rights Reserved. + * + * The contents of this file are subject to the Erlang Public License, + * Version 1.1, (the "License"); you may not use this file except in + * compliance with the License. You should have received a copy of the + * Erlang Public License along with this software. If not, it can be + * retrieved online at http://www.erlang.org/. + * + * Software distributed under the License is distributed on an "AS IS" + * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See + * the License for the specific language governing rights and limitations + * under the License. + * + * %CopyrightEnd% + */ + +/* + * Description: Process/Port table implementation. + * + * Author: Rickard Green + */ + +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif +#define ERTS_PTAB_WANT_BIF_IMPL__ +#define ERTS_PTAB_WANT_DEBUG_FUNCS__ +#include "erl_ptab.h" +#include "global.h" +#include "erl_binary.h" + +typedef struct ErtsPTabListBifData_ ErtsPTabListBifData; + +#define ERTS_PTAB_NEW_MAX_RESERVE_FAIL 1000 + +#define ERTS_PTAB_LIST_BIF_TAB_INSPECT_INDICES_PER_RED 25 +#define ERTS_PTAB_LIST_BIF_TAB_CHUNK_SIZE 1000 +#define ERTS_PTAB_LIST_BIF_MIN_START_REDS \ + (ERTS_PTAB_LIST_BIF_TAB_CHUNK_SIZE \ + / ERTS_PTAB_LIST_BIF_TAB_INSPECT_INDICES_PER_RED) + +#define ERTS_PTAB_LIST_BIF_TAB_FREE_DELETED_REDS 1 + +#define ERTS_PTAB_LIST_BIF_INSPECT_DELETED_PER_RED 10 + +#define ERTS_PTAB_LIST_INSPECT_DELETED_MAX_REDS \ + (ERTS_PTAB_LIST_BIF_TAB_CHUNK_SIZE \ + / ERTS_PTAB_LIST_BIF_TAB_INSPECT_INDICES_PER_RED) + + +#define ERTS_PTAB_LIST_BIF_BUILD_RESULT_CONSES_PER_RED 75 + +#define ERTS_PTAB_LIST_DBG_DO_TRACE 0 + +#ifdef DEBUG +# define ERTS_PTAB_LIST_BIF_DEBUGLEVEL 100 +#else +# define ERTS_PTAB_LIST_BIF_DEBUGLEVEL 0 +#endif + +#define ERTS_PTAB_LIST_DBGLVL_CHK_HALLOC 1 +#define ERTS_PTAB_LIST_DBGLVL_CHK_FOUND_PIDS 5 +#define ERTS_PTAB_LIST_DBGLVL_CHK_PIDS 10 +#define ERTS_PTAB_LIST_DBGLVL_CHK_DEL_LIST 20 +#define ERTS_PTAB_LIST_DBGLVL_CHK_RESLIST 20 + +#if ERTS_PTAB_LIST_BIF_DEBUGLEVEL == 0 +# define ERTS_PTAB_LIST_ASSERT(EXP) +#else +# define ERTS_PTAB_LIST_ASSERT(EXP) \ + ((void) ((EXP) \ + ? 1 \ + : (debug_ptab_list_assert_error(#EXP, \ + __FILE__, \ + __LINE__, \ + __func__), \ + 0))) +#endif + + +#if ERTS_PTAB_LIST_BIF_DEBUGLEVEL >= ERTS_PTAB_LIST_DBGLVL_CHK_HALLOC +# define ERTS_PTAB_LIST_DBG_SAVE_HEAP_ALLOC(PTLBDP, HP, SZ) \ +do { \ + ERTS_PTAB_LIST_ASSERT(!(PTLBDP)->debug.heap); \ + ERTS_PTAB_LIST_ASSERT(!(PTLBDP)->debug.heap_size); \ + (PTLBDP)->debug.heap = (HP); \ + (PTLBDP)->debug.heap_size = (SZ); \ +} while (0) +# define ERTS_PTAB_LIST_DBG_VERIFY_HEAP_ALLOC_USED(PTLBDP, HP) \ +do { \ + ERTS_PTAB_LIST_ASSERT((PTLBDP)->debug.heap); \ + ERTS_PTAB_LIST_ASSERT((PTLBDP)->debug.heap_size); \ + ERTS_PTAB_LIST_ASSERT(((PTLBDP)->debug.heap \ + + (PTLBDP)->debug.heap_size) \ + == (HP)); \ + (PTLBDP)->debug.heap = NULL; \ + (PTLBDP)->debug.heap_size = 0; \ +} while (0) +# define ERTS_PTAB_LIST_DBG_HEAP_ALLOC_INIT(PTLBDP) \ +do { \ + (PTLBDP)->debug.heap = NULL; \ + (PTLBDP)->debug.heap_size = 0; \ +} while (0) +#else +# define ERTS_PTAB_LIST_DBG_SAVE_HEAP_ALLOC(PTLBDP, HP, SZ) +# define ERTS_PTAB_LIST_DBG_VERIFY_HEAP_ALLOC_USED(PTLBDP, HP) +# define ERTS_PTAB_LIST_DBG_HEAP_ALLOC_INIT(PTLBDP) +#endif + +#if ERTS_PTAB_LIST_BIF_DEBUGLEVEL >= ERTS_PTAB_LIST_DBGLVL_CHK_RESLIST +# define ERTS_PTAB_LIST_DBG_CHK_RESLIST(R) \ + debug_ptab_list_check_res_list((R)) +#else +# define ERTS_PTAB_LIST_DBG_CHK_RESLIST(R) +#endif + +#if ERTS_PTAB_LIST_BIF_DEBUGLEVEL >= ERTS_PTAB_LIST_DBGLVL_CHK_PIDS +# define ERTS_PTAB_LIST_DBG_SAVE_PIDS(PTLBDP) \ + debug_ptab_list_save_all_pids((PTLBDP)) +# define ERTS_PTAB_LIST_DBG_VERIFY_PIDS(PTLBDP) \ +do { \ + if (!(PTLBDP)->debug.correct_pids_verified) \ + debug_ptab_list_verify_all_pids((PTLBDP)); \ +} while (0) +# define ERTS_PTAB_LIST_DBG_CLEANUP_CHK_PIDS(PTLBDP) \ +do { \ + if ((PTLBDP)->debug.correct_pids) { \ + erts_free(ERTS_ALC_T_PTAB_LIST_PIDS, \ + (PTLBDP)->debug.correct_pids); \ + (PTLBDP)->debug.correct_pids = NULL; \ + } \ +} while(0) +# define ERTS_PTAB_LIST_DBG_CHK_PIDS_INIT(PTLBDP) \ +do { \ + (PTLBDP)->debug.correct_pids_verified = 0; \ + (PTLBDP)->debug.correct_pids = NULL; \ +} while (0) +#else +# define ERTS_PTAB_LIST_DBG_SAVE_PIDS(PTLBDP) +# define ERTS_PTAB_LIST_DBG_VERIFY_PIDS(PTLBDP) +# define ERTS_PTAB_LIST_DBG_CLEANUP_CHK_PIDS(PTLBDP) +# define ERTS_PTAB_LIST_DBG_CHK_PIDS_INIT(PTLBDP) +#endif + +#if ERTS_PTAB_LIST_BIF_DEBUGLEVEL >= ERTS_PTAB_LIST_DBGLVL_CHK_FOUND_PIDS +# define ERTS_PTAB_LIST_DBG_CHK_PID_FOUND(PTLBDP, PID, IC) \ + debug_ptab_list_check_found_pid((PTLBDP), (PID), (IC), 1) +# define ERTS_PTAB_LIST_DBG_CHK_PID_NOT_FOUND(PTLBDP, PID, IC) \ + debug_ptab_list_check_found_pid((PTLBDP), (PID), (IC), 0) +#else +# define ERTS_PTAB_LIST_DBG_CHK_PID_FOUND(PTLBDP, PID, IC) +# define ERTS_PTAB_LIST_DBG_CHK_PID_NOT_FOUND(PTLBDP, PID, IC) +#endif + +#if ERTS_PTAB_LIST_BIF_DEBUGLEVEL >= ERTS_PTAB_LIST_DBGLVL_CHK_DEL_LIST +# define ERTS_PTAB_LIST_DBG_CHK_DEL_LIST(PTab) \ + debug_ptab_list_check_del_list((PTab)) +# define ERTS_PTAB_LIST_DBG_CHK_FREELIST(PTab, FL) \ + debug_ptab_list_check_del_free_list((PTab), (FL)) +#else +# define ERTS_PTAB_LIST_DBG_CHK_DEL_LIST(PTab) +# define ERTS_PTAB_LIST_DBG_CHK_FREELIST(PTab, FL) +#endif + +#if ERTS_PTAB_LIST_BIF_DEBUGLEVEL == 0 +#if ERTS_PTAB_LIST_DBG_DO_TRACE +# define ERTS_PTAB_LIST_DBG_INIT(P, PTLBDP) \ + (PTLBDP)->debug.caller = (P)->common.id +# else +# define ERTS_PTAB_LIST_DBG_INIT(P, PTLBDP) +# endif +# define ERTS_PTAB_LIST_DBG_CLEANUP(PTLBDP) +#else +# define ERTS_PTAB_LIST_DBG_INIT(P, PTLBDP) \ +do { \ + (PTLBDP)->debug.caller = (P)->common.id; \ + ERTS_PTAB_LIST_DBG_HEAP_ALLOC_INIT((PTLBDP)); \ + ERTS_PTAB_LIST_DBG_CHK_PIDS_INIT((PTLBDP)); \ +} while (0) +# define ERTS_PTAB_LIST_DBG_CLEANUP(PTLBDP) \ +do { \ + ERTS_PTAB_LIST_DBG_CLEANUP_CHK_PIDS((PTLBDP)); \ +} while (0) +#endif + +#if ERTS_PTAB_LIST_DBG_DO_TRACE +# define ERTS_PTAB_LIST_DBG_TRACE(PID, WHAT) \ + erts_fprintf(stderr, "%T %s:%d:%s(): %s\n", \ + (PID), __FILE__, __LINE__, __func__, #WHAT) +#else +# define ERTS_PTAB_LIST_DBG_TRACE(PID, WHAT) +#endif + + +#if ERTS_PTAB_LIST_BIF_DEBUGLEVEL != 0 +static void debug_ptab_list_assert_error(char* expr, + const char* file, + int line, + const char *func); +#endif +#if ERTS_PTAB_LIST_BIF_DEBUGLEVEL >= ERTS_PTAB_LIST_DBGLVL_CHK_RESLIST +static void debug_ptab_list_check_res_list(Eterm list); +#endif +#if ERTS_PTAB_LIST_BIF_DEBUGLEVEL >= ERTS_PTAB_LIST_DBGLVL_CHK_PIDS +static void debug_ptab_list_save_all_pids(ErtsPTabListBifData *ptlbdp); +static void debug_ptab_list_verify_all_pids(ErtsPTabListBifData *ptlbdp); +#endif +#if ERTS_PTAB_LIST_BIF_DEBUGLEVEL >= ERTS_PTAB_LIST_DBGLVL_CHK_FOUND_PIDS +static void debug_ptab_list_check_found_pid(ErtsPTabListBifData *ptlbdp, + Eterm pid, + Uint64 ic, + int pid_should_be_found); +#endif +#if ERTS_PTAB_LIST_BIF_DEBUGLEVEL >= ERTS_PTAB_LIST_DBGLVL_CHK_DEL_LIST +static void debug_ptab_list_check_del_list(ErtsPTab *ptab); +static void debug_ptab_list_check_del_free_list(ErtsPTab *ptab, + ErtsPTabDeletedElement *ptdep); +#endif + +struct ErtsPTabDeletedElement_ { + ErtsPTabDeletedElement *next; + ErtsPTabDeletedElement *prev; + int ix; + union { + struct { + Eterm id; + Uint64 inserted; + Uint64 deleted; + } element; + struct { + Uint64 interval; + } bif_invocation; + } u; +}; + +static Export ptab_list_continue_export; + +typedef struct { + Uint64 interval; +} ErtsPTabListBifChunkInfo; + +typedef enum { + INITIALIZING, + INSPECTING_TABLE, + INSPECTING_DELETED, + BUILDING_RESULT, + RETURN_RESULT +} ErtsPTabListBifState; + +struct ErtsPTabListBifData_ { + ErtsPTab *ptab; + ErtsPTabListBifState state; + Eterm caller; + ErtsPTabListBifChunkInfo *chunk; + int tix; + int pid_ix; + int pid_sz; + Eterm *pid; + ErtsPTabDeletedElement *bif_invocation; /* Only used when > 1 chunk */ + +#if ERTS_PTAB_LIST_BIF_DEBUGLEVEL != 0 || ERTS_PTAB_LIST_DBG_DO_TRACE + struct { + Eterm caller; +#if ERTS_PTAB_LIST_BIF_DEBUGLEVEL >= ERTS_PTAB_LIST_DBGLVL_CHK_FOUND_PIDS + Uint64 *pid_started; +#endif +#if ERTS_PTAB_LIST_BIF_DEBUGLEVEL >= ERTS_PTAB_LIST_DBGLVL_CHK_HALLOC + Eterm *heap; + Uint heap_size; +#endif +#if ERTS_PTAB_LIST_BIF_DEBUGLEVEL >= ERTS_PTAB_LIST_DBGLVL_CHK_PIDS + int correct_pids_verified; + Eterm *correct_pids; +#endif + } debug; +#endif + +}; + +#ifdef ARCH_32 + +static ERTS_INLINE Uint64 +dw_aint_to_uint64(erts_dw_aint_t *dw) +{ +#ifdef ETHR_SU_DW_NAINT_T__ + return (Uint64) dw->dw_sint; +#else + Uint64 res; + res = (Uint64) ((Uint32) dw->sint[ERTS_DW_AINT_HIGH_WORD]); + res <<= 32; + res |= (Uint64) ((Uint32) dw->sint[ERTS_DW_AINT_LOW_WORD]); + return res; +#endif +} + +static void +unint64_to_dw_aint(erts_dw_aint_t *dw, Uint64 val) +{ +#ifdef ETHR_SU_DW_NAINT_T__ + dw->dw_sint = (ETHR_SU_DW_NAINT_T__) val; +#else + dw->sint[ERTS_DW_AINT_LOW_WORD] = (erts_aint_t) (val & 0xffffffff); + dw->sint[ERTS_DW_AINT_HIGH_WORD] = (erts_aint_t) ((val >> 32) & 0xffffffff); +#endif +} + +static ERTS_INLINE void +last_data_init_nob(ErtsPTab *ptab, Uint64 val) +{ + erts_dw_aint_t dw; + unint64_to_dw_aint(&dw, val); + erts_smp_dw_atomic_init_nob(&ptab->vola.tile.last_data, &dw); +} + +static ERTS_INLINE void +last_data_set_relb(ErtsPTab *ptab, Uint64 val) +{ + erts_dw_aint_t dw; + unint64_to_dw_aint(&dw, val); + erts_smp_dw_atomic_set_relb(&ptab->vola.tile.last_data, &dw); +} + +static ERTS_INLINE Uint64 +last_data_read_nob(ErtsPTab *ptab) +{ + erts_dw_aint_t dw; + erts_smp_dw_atomic_read_nob(&ptab->vola.tile.last_data, &dw); + return dw_aint_to_uint64(&dw); +} + +static ERTS_INLINE Uint64 +last_data_read_acqb(ErtsPTab *ptab) +{ + erts_dw_aint_t dw; + erts_smp_dw_atomic_read_acqb(&ptab->vola.tile.last_data, &dw); + return dw_aint_to_uint64(&dw); +} + +static ERTS_INLINE Uint64 +last_data_cmpxchg_relb(ErtsPTab *ptab, Uint64 new, Uint64 exp) +{ + erts_dw_aint_t dw_new, dw_xchg; + + unint64_to_dw_aint(&dw_new, new); + unint64_to_dw_aint(&dw_xchg, exp); + + if (erts_smp_dw_atomic_cmpxchg_relb(&ptab->vola.tile.last_data, + &dw_new, + &dw_xchg)) + return exp; + else + return dw_aint_to_uint64(&dw_xchg); +} + +#elif defined(ARCH_64) + +union { + erts_smp_atomic_t pid_data; + char align[ERTS_CACHE_LINE_SIZE]; +} last erts_align_attribute(ERTS_CACHE_LINE_SIZE); + +static ERTS_INLINE void +last_data_init_nob(ErtsPTab *ptab, Uint64 val) +{ + erts_smp_atomic_init_nob(&ptab->vola.tile.last_data, (erts_aint_t) val); +} + +static ERTS_INLINE void +last_data_set_relb(ErtsPTab *ptab, Uint64 val) +{ + erts_smp_atomic_set_relb(&ptab->vola.tile.last_data, (erts_aint_t) val); +} + +static ERTS_INLINE Uint64 +last_data_read_nob(ErtsPTab *ptab) +{ + return (Uint64) erts_smp_atomic_read_nob(&ptab->vola.tile.last_data); +} + +static ERTS_INLINE Uint64 +last_data_read_acqb(ErtsPTab *ptab) +{ + return (Uint64) erts_smp_atomic_read_acqb(&ptab->vola.tile.last_data); +} + +static ERTS_INLINE Uint64 +last_data_cmpxchg_relb(ErtsPTab *ptab, Uint64 new, Uint64 exp) +{ + return (Uint64) erts_smp_atomic_cmpxchg_relb(&ptab->vola.tile.last_data, + (erts_aint_t) new, + (erts_aint_t) exp); +} + +#else +# error "Not 64-bit, nor 32-bit architecture..." +#endif + +static ERTS_INLINE int +last_data_cmp(Uint64 ld1, Uint64 ld2) +{ + Uint64 ld1_wrap; + + if (ld1 == ld2) + return 0; + + ld1_wrap = ld1 + (((Uint64) 1) << 63); + + if (ld1 < ld1_wrap) + return (ld1 < ld2 && ld2 < ld1_wrap) ? -1 : 1; + else + return (ld1_wrap <= ld2 && ld2 < ld1) ? 1 : -1; +} + +#define ERTS_PTAB_LastData2EtermData(LD) \ + ((Eterm) ((LD) & ~(~((Uint64) 0) << ERTS_PTAB_ID_DATA_SIZE))) + +static ERTS_INLINE Uint32 +ix_to_free_id_data_ix(ErtsPTab *ptab, Uint32 ix) +{ + Uint32 dix; + + dix = ((ix & ptab->r.o.dix_cl_mask) << ptab->r.o.dix_cl_shift); + dix += ((ix >> ptab->r.o.dix_cli_shift) & ptab->r.o.dix_cli_mask); + ASSERT(0 <= dix && dix < ptab->r.o.max); + return dix; +} + +UWord +erts_ptab_mem_size(ErtsPTab *ptab) +{ + UWord size = ptab->r.o.max*sizeof(erts_smp_atomic_t); + if (ptab->r.o.free_id_data) + size += ptab->r.o.max*sizeof(erts_smp_atomic32_t); + return size; +} + + +void +erts_ptab_init_table(ErtsPTab *ptab, + ErtsAlcType_t atype, + void (*release_element)(void *), + ErtsPTabElementCommon *invalid_element, + int size, + UWord element_size, + char *name, + int legacy) +{ + size_t tab_sz, alloc_sz; + Uint32 bits, cl, cli, ix, ix_per_cache_line, tab_cache_lines; + char *tab_end; + erts_smp_atomic_t *tab_entry; + erts_smp_rwmtx_opt_t rwmtx_opts = ERTS_SMP_RWMTX_OPT_DEFAULT_INITER; + rwmtx_opts.type = ERTS_SMP_RWMTX_TYPE_EXTREMELY_FREQUENT_READ; + rwmtx_opts.lived = ERTS_SMP_RWMTX_LONG_LIVED; + + erts_smp_rwmtx_init_opt(&ptab->list.data.rwmtx, &rwmtx_opts, name); + erts_smp_atomic32_init_nob(&ptab->vola.tile.count, 0); + last_data_init_nob(ptab, ~((Uint64) 0)); + + /* A size that is a power of 2 is to prefer performance wise */ + bits = erts_fit_in_bits_int32(size-1); + size = 1 << bits; + if (size > ERTS_PTAB_MAX_SIZE) { + size = ERTS_PTAB_MAX_SIZE; + bits = erts_fit_in_bits_int32((Sint32) size - 1); + } + + ptab->r.o.element_size = element_size; + ptab->r.o.max = size; + + tab_sz = ERTS_ALC_CACHE_LINE_ALIGN_SIZE(size*sizeof(erts_smp_atomic_t)); + alloc_sz = tab_sz; + if (!legacy) + alloc_sz += ERTS_ALC_CACHE_LINE_ALIGN_SIZE(size*sizeof(erts_smp_atomic32_t)); + ptab->r.o.tab = erts_alloc_permanent_cache_aligned(atype, alloc_sz); + tab_end = ((char *) ptab->r.o.tab) + tab_sz; + tab_entry = ptab->r.o.tab; + while (tab_end > ((char *) tab_entry)) { + erts_smp_atomic_init_nob(tab_entry, ERTS_AINT_NULL); + tab_entry++; + } + + tab_cache_lines = tab_sz/ERTS_CACHE_LINE_SIZE; + ix_per_cache_line = (ERTS_CACHE_LINE_SIZE/sizeof(erts_smp_atomic_t)); + ASSERT((ptab->r.o.max & (ptab->r.o.max - 1)) == 0); /* power of 2 */ + ASSERT((ix_per_cache_line & (ix_per_cache_line - 1)) == 0); /* power of 2 */ + ASSERT((tab_cache_lines & (tab_cache_lines - 1)) == 0); /* power of 2 */ + + ptab->r.o.pix_mask = (1 << bits) - 1; + ptab->r.o.pix_cl_mask = tab_cache_lines-1; + ptab->r.o.pix_cl_shift = erts_fit_in_bits_int32(ix_per_cache_line-1); + ptab->r.o.pix_cli_shift = erts_fit_in_bits_int32(ptab->r.o.pix_cl_mask); + ptab->r.o.pix_cli_mask = (1 << (bits - ptab->r.o.pix_cli_shift)) - 1; + + ASSERT(ptab->r.o.pix_cl_shift + ptab->r.o.pix_cli_shift == bits); + + ptab->r.o.invalid_element = invalid_element; + ptab->r.o.invalid_data = erts_ptab_id2data(ptab, invalid_element->id); + ptab->r.o.release_element = release_element; + + if (legacy) { + ptab->r.o.free_id_data = NULL; + ptab->r.o.dix_cl_mask = 0; + ptab->r.o.dix_cl_shift = 0; + ptab->r.o.dix_cli_shift = 0; + ptab->r.o.dix_cli_mask = 0; + } + else { + + tab_sz = ERTS_ALC_CACHE_LINE_ALIGN_SIZE(size*sizeof(erts_smp_atomic32_t)); + ptab->r.o.free_id_data = (erts_smp_atomic32_t *) tab_end; + + tab_cache_lines = tab_sz/ERTS_CACHE_LINE_SIZE; + ix_per_cache_line = (ERTS_CACHE_LINE_SIZE/sizeof(erts_smp_atomic32_t)); + + ptab->r.o.dix_cl_mask = tab_cache_lines-1; + ptab->r.o.dix_cl_shift = erts_fit_in_bits_int32(ix_per_cache_line-1); + ptab->r.o.dix_cli_shift = erts_fit_in_bits_int32(ptab->r.o.dix_cl_mask); + ptab->r.o.dix_cli_mask = (1 << (bits - ptab->r.o.dix_cli_shift)) - 1; + + ASSERT((ix_per_cache_line & (ix_per_cache_line - 1)) == 0); /* power of 2 */ + ASSERT((tab_cache_lines & (tab_cache_lines - 1)) == 0); /* power of 2 */ + + ASSERT(ptab->r.o.dix_cl_shift + ptab->r.o.dix_cli_shift == bits); + + ix = 0; + for (cl = 0; cl < tab_cache_lines; cl++) { + for (cli = 0; cli < ix_per_cache_line; cli++) { + erts_smp_atomic32_init_nob(&ptab->r.o.free_id_data[ix], + cli*tab_cache_lines+cl); + ASSERT(erts_smp_atomic32_read_nob(&ptab->r.o.free_id_data[ix]) != ptab->r.o.invalid_data); + ix++; + } + } + + erts_smp_atomic32_init_nob(&ptab->vola.tile.aid_ix, -1); + erts_smp_atomic32_init_nob(&ptab->vola.tile.fid_ix, -1); + + } + + erts_smp_interval_init(&ptab->list.data.interval); + ptab->list.data.deleted.start = NULL; + ptab->list.data.deleted.end = NULL; + ptab->list.data.chunks = (((ptab->r.o.max - 1) + / ERTS_PTAB_LIST_BIF_TAB_CHUNK_SIZE) + + 1); + + if (size == ERTS_PTAB_MAX_SIZE) { + int pix; + /* + * We want a table size of a power of 2 which ERTS_PTAB_MAX_SIZE + * is. We only have ERTS_PTAB_MAX_SIZE-1 unique identifiers and + * we don't want to shrink the size to ERTS_PTAB_MAX_SIZE/2. + * + * In order to fix this, we insert a pointer from the table + * to the invalid_element, wich will be interpreted as a + * slot currently being modified. This way we will be able to + * have ERTS_PTAB_MAX_SIZE-1 valid elements in the table while + * still having a table size of the power of 2. + */ + erts_smp_atomic32_inc_nob(&ptab->vola.tile.count); + pix = erts_ptab_data2pix(ptab, ptab->r.o.invalid_data); + erts_smp_atomic_set_relb(&ptab->r.o.tab[pix], + (erts_aint_t) ptab->r.o.invalid_element); + } + +} + +int +erts_ptab_initialized(ErtsPTab *ptab) +{ + return ptab->r.o.tab != NULL; +} + +int +erts_ptab_new_element(ErtsPTab *ptab, + ErtsPTabElementCommon *ptab_el, + void *init_arg, + void (*init_ptab_el)(void *, Eterm)) +{ + Uint32 pix, ix, data; + erts_aint32_t count; + erts_aint_t invalid = (erts_aint_t) ptab->r.o.invalid_element; + + erts_ptab_rlock(ptab); + + count = erts_smp_atomic32_inc_read_acqb(&ptab->vola.tile.count); + if (count > ptab->r.o.max) { + while (1) { + erts_aint32_t act_count; + + act_count = erts_smp_atomic32_cmpxchg_relb(&ptab->vola.tile.count, + count-1, + count); + if (act_count == count) { + erts_ptab_runlock(ptab); + return 0; + } + count = act_count; + if (count <= ptab->r.o.max) + break; + } + } + + ptab_el->u.alive.started_interval + = erts_smp_current_interval_nob(erts_ptab_interval(ptab)); + + if (ptab->r.o.free_id_data) { + do { + ix = (Uint32) erts_smp_atomic32_inc_read_acqb(&ptab->vola.tile.aid_ix); + ix = ix_to_free_id_data_ix(ptab, ix); + + data = erts_smp_atomic32_xchg_nob(&ptab->r.o.free_id_data[ix], + (erts_aint32_t)ptab->r.o.invalid_data); + }while ((Eterm)data == ptab->r.o.invalid_data); + + init_ptab_el(init_arg, (Eterm) data); + +#ifdef ERTS_SMP + erts_smp_atomic32_init_nob(&ptab_el->refc, 1); +#endif + + pix = erts_ptab_data2pix(ptab, (Eterm) data); + +#ifdef DEBUG + ASSERT(ERTS_AINT_NULL == erts_smp_atomic_xchg_relb(&ptab->r.o.tab[pix], + (erts_aint_t) ptab_el)); +#else + erts_smp_atomic_set_relb(&ptab->r.o.tab[pix], (erts_aint_t) ptab_el); +#endif + + erts_ptab_runlock(ptab); + + } + else { + int rlocked = ERTS_PTAB_NEW_MAX_RESERVE_FAIL; + Uint64 ld, exp_ld; + /* Deprecated legacy algorithm... */ + + restart: + + ptab_el->u.alive.started_interval + = erts_smp_current_interval_nob(erts_ptab_interval(ptab)); + + ld = last_data_read_acqb(ptab); + + /* Reserve slot */ + while (1) { + ld++; + pix = erts_ptab_data2pix(ptab, ERTS_PTAB_LastData2EtermData(ld)); + if (erts_smp_atomic_read_nob(&ptab->r.o.tab[pix]) + == ERTS_AINT_NULL) { + erts_aint_t val; + val = erts_smp_atomic_cmpxchg_relb(&ptab->r.o.tab[pix], + invalid, + ERTS_AINT_NULL); + + if (ERTS_AINT_NULL == val) + break; + } + if (rlocked && --rlocked == 0) { + erts_ptab_runlock(ptab); + erts_ptab_rwlock(ptab); + goto restart; + } + } + + data = ERTS_PTAB_LastData2EtermData(ld); + + if (data == ptab->r.o.invalid_data) { + /* Do not use invalid data; fix it... */ + ld += ptab->r.o.max; + ASSERT(pix == erts_ptab_data2pix(ptab, + ERTS_PTAB_LastData2EtermData(ld))); + data = ERTS_PTAB_LastData2EtermData(ld); + ASSERT(data != ptab->r.o.invalid_data); + } + + exp_ld = last_data_read_nob(ptab); + + /* Move last data forward */ + while (1) { + Uint64 act_ld; + if (last_data_cmp(ld, exp_ld) < 0) + break; + act_ld = last_data_cmpxchg_relb(ptab, ld, exp_ld); + if (act_ld == exp_ld) + break; + exp_ld = act_ld; + } + + init_ptab_el(init_arg, data); + +#ifdef ERTS_SMP + erts_smp_atomic32_init_nob(&ptab_el->refc, 1); +#endif + + /* Move into slot reserved */ +#ifdef DEBUG + ASSERT(invalid == erts_smp_atomic_xchg_relb(&ptab->r.o.tab[pix], + (erts_aint_t) ptab_el)); +#else + erts_smp_atomic_set_relb(&ptab->r.o.tab[pix], (erts_aint_t) ptab_el); +#endif + + if (rlocked) + erts_ptab_runlock(ptab); + else + erts_ptab_rwunlock(ptab); + + } + + return 1; +} + +static void +save_deleted_element(ErtsPTab *ptab, ErtsPTabElementCommon *ptab_el) +{ + ErtsPTabDeletedElement *ptdep = erts_alloc(ERTS_ALC_T_PTAB_LIST_DEL, + sizeof(ErtsPTabDeletedElement)); + ERTS_PTAB_LIST_ASSERT(ptab->list.data.deleted.start + && ptab->list.data.deleted.end); + ERTS_SMP_LC_ASSERT(erts_smp_lc_ptab_is_rwlocked(ptab)); + + ERTS_PTAB_LIST_DBG_CHK_DEL_LIST(ptab); + + ptdep->prev = ptab->list.data.deleted.end; + ptdep->next = NULL; + ptdep->ix = erts_ptab_id2pix(ptab, ptab_el->id); + ptdep->u.element.id = ptab_el->id; + ptdep->u.element.inserted = ptab_el->u.alive.started_interval; + ptdep->u.element.deleted = + erts_smp_current_interval_nob(erts_ptab_interval(ptab)); + + ptab->list.data.deleted.end->next = ptdep; + ptab->list.data.deleted.end = ptdep; + + ERTS_PTAB_LIST_DBG_CHK_DEL_LIST(ptab); + + ERTS_PTAB_LIST_ASSERT(ptdep->prev->ix >= 0 + ? (ptdep->u.element.deleted + >= ptdep->prev->u.element.deleted) + : (ptdep->u.element.deleted + >= ptdep->prev->u.bif_invocation.interval)); +} + +void +erts_ptab_delete_element(ErtsPTab *ptab, + ErtsPTabElementCommon *ptab_el) +{ + int maybe_save; + Uint32 pix, ix, data; + + pix = erts_ptab_id2pix(ptab, ptab_el->id); + + /* *Need* to be an managed thread */ + ERTS_SMP_LC_ASSERT(erts_thr_progress_is_managed_thread()); + + erts_ptab_rlock(ptab); + maybe_save = ptab->list.data.deleted.end != NULL; + if (maybe_save) { + erts_ptab_runlock(ptab); + erts_ptab_rwlock(ptab); + } + + erts_smp_atomic_set_relb(&ptab->r.o.tab[pix], ERTS_AINT_NULL); + + if (ptab->r.o.free_id_data) { + Uint32 prev_data; + /* Next data for this slot... */ + data = (Uint32) erts_ptab_id2data(ptab, ptab_el->id); + data += ptab->r.o.max; + data &= ~(~((Uint32) 0) << ERTS_PTAB_ID_DATA_SIZE); + if (data == ptab->r.o.invalid_data) { /* make sure not invalid */ + data += ptab->r.o.max; + data &= ~(~((Uint32) 0) << ERTS_PTAB_ID_DATA_SIZE); + } + ASSERT(data != ptab->r.o.invalid_data); + ASSERT(pix == erts_ptab_data2pix(ptab, data)); + + do { + ix = (Uint32) erts_smp_atomic32_inc_read_relb(&ptab->vola.tile.fid_ix); + ix = ix_to_free_id_data_ix(ptab, ix); + + prev_data = erts_smp_atomic32_cmpxchg_nob(&ptab->r.o.free_id_data[ix], + data, + ptab->r.o.invalid_data); + }while ((Eterm)prev_data != ptab->r.o.invalid_data); + } + + ASSERT(erts_smp_atomic32_read_nob(&ptab->vola.tile.count) > 0); + erts_smp_atomic32_dec_relb(&ptab->vola.tile.count); + + if (!maybe_save) + erts_ptab_runlock(ptab); + else { + if (ptab->list.data.deleted.end) + save_deleted_element(ptab, ptab_el); + erts_ptab_rwunlock(ptab); + } + + if (ptab->r.o.release_element) + erts_schedule_thr_prgr_later_cleanup_op(ptab->r.o.release_element, + (void *) ptab_el, + &ptab_el->u.release, + ptab->r.o.element_size); +} + +/* + * erts_ptab_list() implements BIFs listing the content of the table, + * e.g. erlang:processes/0. + */ +static void cleanup_ptab_list_bif_data(Binary *bp); +static int ptab_list_bif_engine(Process *c_p, Eterm *res_accp, Binary *mbp); + + +BIF_RETTYPE +erts_ptab_list(Process *c_p, ErtsPTab *ptab) +{ + /* + * A requirement: The list of identifiers returned should be a + * consistent snapshot of all elements existing + * in the table at some point in time during the + * execution of the BIF calling this function. + * Since elements might be deleted while the BIF + * is executing, we have to keep track of all + * deleted elements and add them to the result. + * We also ignore elements created after the BIF + * has begun executing. + */ + BIF_RETTYPE ret_val; + Eterm res_acc = NIL; + Binary *mbp = erts_create_magic_binary(sizeof(ErtsPTabListBifData), + cleanup_ptab_list_bif_data); + ErtsPTabListBifData *ptlbdp = ERTS_MAGIC_BIN_DATA(mbp); + + ERTS_PTAB_LIST_DBG_TRACE(c_p->common.id, call); + ptlbdp->ptab = ptab; + ptlbdp->state = INITIALIZING; + ERTS_PTAB_LIST_DBG_INIT(c_p, ptlbdp); + + if (ERTS_BIF_REDS_LEFT(c_p) >= ERTS_PTAB_LIST_BIF_MIN_START_REDS + && ptab_list_bif_engine(c_p, &res_acc, mbp)) { + erts_bin_free(mbp); + ERTS_PTAB_LIST_DBG_CHK_RESLIST(res_acc); + ERTS_PTAB_LIST_DBG_TRACE(c_p->common.id, return); + ERTS_BIF_PREP_RET(ret_val, res_acc); + } + else { + Eterm *hp; + Eterm magic_bin; + ERTS_PTAB_LIST_DBG_CHK_RESLIST(res_acc); + hp = HAlloc(c_p, PROC_BIN_SIZE); + ERTS_PTAB_LIST_DBG_SAVE_HEAP_ALLOC(ptlbdp, hp, PROC_BIN_SIZE); + magic_bin = erts_mk_magic_binary_term(&hp, &MSO(c_p), mbp); + ERTS_PTAB_LIST_DBG_VERIFY_HEAP_ALLOC_USED(ptlbdp, hp); + ERTS_PTAB_LIST_DBG_TRACE(c_p->common.id, trap); + ERTS_BIF_PREP_YIELD2(ret_val, + &ptab_list_continue_export, + c_p, + res_acc, + magic_bin); + } + return ret_val; +} + +static void +cleanup_ptab_list_bif_data(Binary *bp) +{ + ErtsPTabListBifData *ptlbdp = ERTS_MAGIC_BIN_DATA(bp); + ErtsPTab *ptab = ptlbdp->ptab; + + ERTS_PTAB_LIST_DBG_TRACE(ptlbdp->debug.caller, call); + + if (ptlbdp->state != INITIALIZING) { + + if (ptlbdp->chunk) { + erts_free(ERTS_ALC_T_PTAB_LIST_CNKI, ptlbdp->chunk); + ptlbdp->chunk = NULL; + } + if (ptlbdp->pid) { + erts_free(ERTS_ALC_T_PTAB_LIST_PIDS, ptlbdp->pid); + ptlbdp->pid = NULL; + } + +#if ERTS_PTAB_LIST_BIF_DEBUGLEVEL >= ERTS_PTAB_LIST_DBGLVL_CHK_FOUND_PIDS + if (ptlbdp->debug.pid_started) { + erts_free(ERTS_ALC_T_PTAB_LIST_PIDS, ptlbdp->debug.pid_started); + ptlbdp->debug.pid_started = NULL; + } +#endif + + if (ptlbdp->bif_invocation) { + ErtsPTabDeletedElement *ptdep; + + erts_ptab_rwlock(ptab); + + ERTS_PTAB_LIST_DBG_TRACE(ptlbdp->debug.caller, deleted_cleanup); + + ptdep = ptlbdp->bif_invocation; + ptlbdp->bif_invocation = NULL; + + ERTS_PTAB_LIST_DBG_CHK_DEL_LIST(ptab); + + if (ptdep->prev) { + /* + * Only remove this bif invokation when we + * have preceding invokations. + */ + ptdep->prev->next = ptdep->next; + if (ptdep->next) + ptdep->next->prev = ptdep->prev; + else { + /* + * At the time of writing this branch cannot be + * reached. I don't want to remove this code though + * since it may be possible to reach this line + * in the future if the cleanup order in + * erts_do_exit_process() is changed. The ASSERT(0) + * is only here to make us aware that the reorder + * has happened. /rickard + */ + ASSERT(0); + ptab->list.data.deleted.end = ptdep->prev; + } + erts_free(ERTS_ALC_T_PTAB_LIST_DEL, ptdep); + } + else { + /* + * Free all elements until next bif invokation + * is found. + */ + ERTS_PTAB_LIST_ASSERT(ptab->list.data.deleted.start == ptdep); + do { + ErtsPTabDeletedElement *fptdep = ptdep; + ptdep = ptdep->next; + erts_free(ERTS_ALC_T_PTAB_LIST_DEL, fptdep); + } while (ptdep && ptdep->ix >= 0); + ptab->list.data.deleted.start = ptdep; + if (ptdep) + ptdep->prev = NULL; + else + ptab->list.data.deleted.end = NULL; + } + + ERTS_PTAB_LIST_DBG_CHK_DEL_LIST(ptab); + + erts_ptab_rwunlock(ptab); + + } + } + + ERTS_PTAB_LIST_DBG_TRACE(ptlbdp->debug.caller, return); + ERTS_PTAB_LIST_DBG_CLEANUP(ptlbdp); +} + +static int +ptab_list_bif_engine(Process *c_p, Eterm *res_accp, Binary *mbp) +{ + ErtsPTabListBifData *ptlbdp = ERTS_MAGIC_BIN_DATA(mbp); + ErtsPTab *ptab = ptlbdp->ptab; + int have_reds; + int reds; + int locked = 0; + + do { + switch (ptlbdp->state) { + case INITIALIZING: + ptlbdp->chunk = erts_alloc(ERTS_ALC_T_PTAB_LIST_CNKI, + (sizeof(ErtsPTabListBifChunkInfo) + * ptab->list.data.chunks)); + ptlbdp->tix = 0; + ptlbdp->pid_ix = 0; + + erts_ptab_rwlock(ptab); + locked = 1; + + ERTS_PTAB_LIST_DBG_TRACE(c_p->common.id, init); + + ptlbdp->pid_sz = erts_ptab_count(ptab); + ptlbdp->pid = erts_alloc(ERTS_ALC_T_PTAB_LIST_PIDS, + sizeof(Eterm)*ptlbdp->pid_sz); + +#if ERTS_PTAB_LIST_BIF_DEBUGLEVEL >= ERTS_PTAB_LIST_DBGLVL_CHK_FOUND_PIDS + ptlbdp->debug.pid_started + = erts_alloc(ERTS_ALC_T_PTAB_LIST_PIDS, + sizeof(Uint64)*ptlbdp->pid_sz); +#endif + + ERTS_PTAB_LIST_DBG_SAVE_PIDS(ptlbdp); + + if (ptab->list.data.chunks == 1) + ptlbdp->bif_invocation = NULL; + else { + /* + * We will have to access the table multiple times + * releasing the table lock in between chunks. + */ + ptlbdp->bif_invocation + = erts_alloc(ERTS_ALC_T_PTAB_LIST_DEL, + sizeof(ErtsPTabDeletedElement)); + ptlbdp->bif_invocation->ix = -1; + ptlbdp->bif_invocation->u.bif_invocation.interval + = erts_smp_step_interval_nob(erts_ptab_interval(ptab)); + ERTS_PTAB_LIST_DBG_CHK_DEL_LIST(ptab); + + ptlbdp->bif_invocation->next = NULL; + if (ptab->list.data.deleted.end) { + ptlbdp->bif_invocation->prev = ptab->list.data.deleted.end; + ptab->list.data.deleted.end->next = ptlbdp->bif_invocation; + ERTS_PTAB_LIST_ASSERT(ptab->list.data.deleted.start); + } + else { + ptlbdp->bif_invocation->prev = NULL; + ptab->list.data.deleted.start = ptlbdp->bif_invocation; + } + ptab->list.data.deleted.end = ptlbdp->bif_invocation; + + ERTS_PTAB_LIST_DBG_CHK_DEL_LIST(ptab); + + } + + ptlbdp->state = INSPECTING_TABLE; + /* Fall through */ + + case INSPECTING_TABLE: { + int ix = ptlbdp->tix; + int indices = ERTS_PTAB_LIST_BIF_TAB_CHUNK_SIZE; + int cix = ix / ERTS_PTAB_LIST_BIF_TAB_CHUNK_SIZE; + int end_ix = ix + indices; + Uint64 *invocation_interval_p; + ErtsPTabElementCommon *invalid_element; + + invocation_interval_p + = (ptlbdp->bif_invocation + ? &ptlbdp->bif_invocation->u.bif_invocation.interval + : NULL); + + ERTS_PTAB_LIST_ASSERT(is_nil(*res_accp)); + if (!locked) { + erts_ptab_rwlock(ptab); + locked = 1; + } + + ERTS_SMP_LC_ASSERT(erts_smp_lc_ptab_is_rwlocked(ptab)); + ERTS_PTAB_LIST_DBG_TRACE(p->common.id, insp_table); + + if (cix != 0) + ptlbdp->chunk[cix].interval + = erts_smp_step_interval_nob(erts_ptab_interval(ptab)); + else if (ptlbdp->bif_invocation) + ptlbdp->chunk[0].interval = *invocation_interval_p; + /* else: interval is irrelevant */ + + if (end_ix >= ptab->r.o.max) { + ERTS_PTAB_LIST_ASSERT(cix+1 == ptab->list.data.chunks); + end_ix = ptab->r.o.max; + indices = end_ix - ix; + /* What to do when done with this chunk */ + ptlbdp->state = (ptab->list.data.chunks == 1 + ? BUILDING_RESULT + : INSPECTING_DELETED); + } + + invalid_element = ptab->r.o.invalid_element; + for (; ix < end_ix; ix++) { + ErtsPTabElementCommon *el; + el = (ErtsPTabElementCommon *) erts_ptab_pix2intptr_nob(ptab, + ix); + if (el + && el != invalid_element + && (!invocation_interval_p + || el->u.alive.started_interval < *invocation_interval_p)) { + ERTS_PTAB_LIST_ASSERT(erts_ptab_is_valid_id(el->id)); + ptlbdp->pid[ptlbdp->pid_ix] = el->id; + +#if ERTS_PTAB_LIST_BIF_DEBUGLEVEL >= ERTS_PTAB_LIST_DBGLVL_CHK_FOUND_PIDS + ptlbdp->debug.pid_started[ptlbdp->pid_ix] + = el->u.alive.started_interval; +#endif + + ptlbdp->pid_ix++; + ERTS_PTAB_LIST_ASSERT(ptlbdp->pid_ix <= ptlbdp->pid_sz); + } + } + + ptlbdp->tix = end_ix; + + erts_ptab_rwunlock(ptab); + locked = 0; + + reds = indices/ERTS_PTAB_LIST_BIF_TAB_INSPECT_INDICES_PER_RED; + BUMP_REDS(c_p, reds); + + have_reds = ERTS_BIF_REDS_LEFT(c_p); + + if (have_reds && ptlbdp->state == INSPECTING_TABLE) { + ix = ptlbdp->tix; + indices = ERTS_PTAB_LIST_BIF_TAB_CHUNK_SIZE; + end_ix = ix + indices; + if (end_ix > ptab->r.o.max) { + end_ix = ptab->r.o.max; + indices = end_ix - ix; + } + + reds = indices/ERTS_PTAB_LIST_BIF_TAB_INSPECT_INDICES_PER_RED; + + /* Pretend we have no reds left if we haven't got enough + reductions to complete next chunk */ + if (reds > have_reds) + have_reds = 0; + } + + break; + } + + case INSPECTING_DELETED: { + int i; + int max_reds; + int free_deleted = 0; + Uint64 invocation_interval; + ErtsPTabDeletedElement *ptdep; + ErtsPTabDeletedElement *free_list = NULL; + + ptdep = ptlbdp->bif_invocation; + ERTS_PTAB_LIST_ASSERT(ptdep); + invocation_interval = ptdep->u.bif_invocation.interval; + + max_reds = have_reds = ERTS_BIF_REDS_LEFT(c_p); + if (max_reds > ERTS_PTAB_LIST_INSPECT_DELETED_MAX_REDS) + max_reds = ERTS_PTAB_LIST_INSPECT_DELETED_MAX_REDS; + + reds = 0; + erts_ptab_rwlock(ptab); + ERTS_PTAB_LIST_DBG_TRACE(p->common.id, insp_term_procs); + + ERTS_PTAB_LIST_DBG_CHK_DEL_LIST(ptab); + + if (ptdep->prev) + ptdep->prev->next = ptdep->next; + else { + ERTS_PTAB_LIST_ASSERT(ptab->list.data.deleted.start == ptdep); + ptab->list.data.deleted.start = ptdep->next; + + if (ptab->list.data.deleted.start + && ptab->list.data.deleted.start->ix >= 0) { + free_list = ptab->list.data.deleted.start; + free_deleted = 1; + } + } + + if (ptdep->next) + ptdep->next->prev = ptdep->prev; + else + ptab->list.data.deleted.end = ptdep->prev; + + ptdep = ptdep->next; + + i = 0; + while (reds < max_reds && ptdep) { + if (ptdep->ix < 0) { + if (free_deleted) { + ERTS_PTAB_LIST_ASSERT(free_list); + ERTS_PTAB_LIST_ASSERT(ptdep->prev); + + ptdep->prev->next = NULL; /* end of free_list */ + ptab->list.data.deleted.start = ptdep; + ptdep->prev = NULL; + free_deleted = 0; + } + } + else { + int cix = ptdep->ix/ERTS_PTAB_LIST_BIF_TAB_CHUNK_SIZE; + Uint64 chunk_interval = ptlbdp->chunk[cix].interval; + Eterm pid = ptdep->u.element.id; + ERTS_PTAB_LIST_ASSERT(erts_ptab_is_valid_id(pid)); + + if (ptdep->u.element.inserted < invocation_interval) { + if (ptdep->u.element.deleted < chunk_interval) { + ERTS_PTAB_LIST_DBG_CHK_PID_NOT_FOUND( + ptlbdp, + pid, + ptdep->u.element.inserted); + ptlbdp->pid[ptlbdp->pid_ix] = pid; +#if ERTS_PTAB_LIST_BIF_DEBUGLEVEL >= ERTS_PTAB_LIST_DBGLVL_CHK_FOUND_PIDS + ptlbdp->debug.pid_started[ptlbdp->pid_ix] + = ptdep->u.element.inserted; +#endif + ptlbdp->pid_ix++; + ERTS_PTAB_LIST_ASSERT(ptlbdp->pid_ix + <= ptlbdp->pid_sz); + } + else { + ERTS_PTAB_LIST_DBG_CHK_PID_FOUND( + ptlbdp, + pid, + ptdep->u.element.inserted); + } + } + else { + ERTS_PTAB_LIST_DBG_CHK_PID_NOT_FOUND( + ptlbdp, + pid, + ptdep->u.element.inserted); + } + + i++; + if (i == ERTS_PTAB_LIST_BIF_INSPECT_DELETED_PER_RED) { + reds++; + i = 0; + } + if (free_deleted) + reds += ERTS_PTAB_LIST_BIF_TAB_FREE_DELETED_REDS; + } + ptdep = ptdep->next; + } + + if (free_deleted) { + ERTS_PTAB_LIST_ASSERT(free_list); + ptab->list.data.deleted.start = ptdep; + if (!ptdep) + ptab->list.data.deleted.end = NULL; + else { + ERTS_PTAB_LIST_ASSERT(ptdep->prev); + ptdep->prev->next = NULL; /* end of free_list */ + ptdep->prev = NULL; + } + } + + if (!ptdep) { + /* Done */ + ERTS_PTAB_LIST_ASSERT(ptlbdp->pid_ix == ptlbdp->pid_sz); + ptlbdp->state = BUILDING_RESULT; + ptlbdp->bif_invocation->next = free_list; + free_list = ptlbdp->bif_invocation; + ptlbdp->bif_invocation = NULL; + } + else { + /* Link in bif_invocation again where we left off */ + ptlbdp->bif_invocation->prev = ptdep->prev; + ptlbdp->bif_invocation->next = ptdep; + ptdep->prev = ptlbdp->bif_invocation; + if (ptlbdp->bif_invocation->prev) + ptlbdp->bif_invocation->prev->next = ptlbdp->bif_invocation; + else { + ERTS_PTAB_LIST_ASSERT(ptab->list.data.deleted.start + == ptdep); + ptab->list.data.deleted.start = ptlbdp->bif_invocation; + } + } + + ERTS_PTAB_LIST_DBG_CHK_DEL_LIST(ptab); + ERTS_PTAB_LIST_DBG_CHK_FREELIST(ptab, free_list); + erts_ptab_rwunlock(ptab); + + /* + * We do the actual free of deleted structures now when we + * have released the table lock instead of when we encountered + * them. This since free() isn't for free and we don't want to + * unnecessarily block other schedulers. + */ + while (free_list) { + ptdep = free_list; + free_list = ptdep->next; + erts_free(ERTS_ALC_T_PTAB_LIST_DEL, ptdep); + } + + have_reds -= reds; + if (have_reds < 0) + have_reds = 0; + BUMP_REDS(c_p, reds); + break; + } + + case BUILDING_RESULT: { + int conses, ix, min_ix; + Eterm *hp; + Eterm res = *res_accp; + + ERTS_PTAB_LIST_DBG_VERIFY_PIDS(ptlbdp); + ERTS_PTAB_LIST_DBG_CHK_RESLIST(res); + + ERTS_PTAB_LIST_DBG_TRACE(p->common.id, begin_build_res); + + have_reds = ERTS_BIF_REDS_LEFT(c_p); + conses = ERTS_PTAB_LIST_BIF_BUILD_RESULT_CONSES_PER_RED*have_reds; + min_ix = ptlbdp->pid_ix - conses; + if (min_ix < 0) { + min_ix = 0; + conses = ptlbdp->pid_ix; + } + + if (conses) { + hp = HAlloc(c_p, conses*2); + ERTS_PTAB_LIST_DBG_SAVE_HEAP_ALLOC(ptlbdp, hp, conses*2); + + for (ix = ptlbdp->pid_ix - 1; ix >= min_ix; ix--) { + ERTS_PTAB_LIST_ASSERT(erts_ptab_is_valid_id(ptlbdp->pid[ix])); + res = CONS(hp, ptlbdp->pid[ix], res); + hp += 2; + } + + ERTS_PTAB_LIST_DBG_VERIFY_HEAP_ALLOC_USED(ptlbdp, hp); + } + + ptlbdp->pid_ix = min_ix; + if (min_ix == 0) + ptlbdp->state = RETURN_RESULT; + else { + ptlbdp->pid_sz = min_ix; + ptlbdp->pid = erts_realloc(ERTS_ALC_T_PTAB_LIST_PIDS, + ptlbdp->pid, + sizeof(Eterm)*ptlbdp->pid_sz); +#if ERTS_PTAB_LIST_BIF_DEBUGLEVEL >= ERTS_PTAB_LIST_DBGLVL_CHK_FOUND_PIDS + ptlbdp->debug.pid_started + = erts_realloc(ERTS_ALC_T_PTAB_LIST_PIDS, + ptlbdp->debug.pid_started, + sizeof(Uint64) * ptlbdp->pid_sz); +#endif + } + reds = conses/ERTS_PTAB_LIST_BIF_BUILD_RESULT_CONSES_PER_RED; + BUMP_REDS(c_p, reds); + have_reds -= reds; + + ERTS_PTAB_LIST_DBG_CHK_RESLIST(res); + ERTS_PTAB_LIST_DBG_TRACE(c_p->common.id, end_build_res); + *res_accp = res; + break; + } + case RETURN_RESULT: + cleanup_ptab_list_bif_data(mbp); + return 1; + + default: + erl_exit(ERTS_ABORT_EXIT, + "%s:%d:ptab_list_bif_engine(): Invalid state: %d\n", + __FILE__, __LINE__, (int) ptlbdp->state); + } + + + } while (have_reds || ptlbdp->state == RETURN_RESULT); + + return 0; +} + +/* + * ptab_list_continue/2 is a hidden BIF that the original BIF traps to + * if there are too much work to do in one go. + */ + +static BIF_RETTYPE ptab_list_continue(BIF_ALIST_2) +{ + Eterm res_acc; + Binary *mbp; + + /* + * This bif cannot be called from erlang code. It can only be + * trapped to from other BIFs; therefore, a bad argument + * is an internal error and should never occur... + */ + + ERTS_PTAB_LIST_DBG_TRACE(BIF_P->common.id, call); + ERTS_PTAB_LIST_ASSERT(is_nil(BIF_ARG_1) || is_list(BIF_ARG_1)); + + res_acc = BIF_ARG_1; + + ERTS_PTAB_LIST_ASSERT(ERTS_TERM_IS_MAGIC_BINARY(BIF_ARG_2)); + + mbp = ((ProcBin *) binary_val(BIF_ARG_2))->val; + + ERTS_PTAB_LIST_ASSERT(ERTS_MAGIC_BIN_DESTRUCTOR(mbp) + == cleanup_ptab_list_bif_data); + ERTS_PTAB_LIST_ASSERT( + ((ErtsPTabListBifData *) ERTS_MAGIC_BIN_DATA(mbp))->debug.caller + == BIF_P->common.id); + + if (ptab_list_bif_engine(BIF_P, &res_acc, mbp)) { + ERTS_PTAB_LIST_DBG_TRACE(BIF_P->common.id, return); + BIF_RET(res_acc); + } + else { + ERTS_PTAB_LIST_DBG_TRACE(BIF_P->common.id, trap); + ERTS_BIF_YIELD2(&ptab_list_continue_export, BIF_P, res_acc, BIF_ARG_2); + } +} + +void +erts_ptab_init(void) +{ + /* ptab_list_continue/2 is a hidden BIF that the original BIF traps to. */ + erts_init_trap_export(&ptab_list_continue_export, + am_erlang, am_ptab_list_continue, 2, + &ptab_list_continue); + +} + +/* + * Debug stuff + */ + +static void assert_ptab_consistency(ErtsPTab *ptab) +{ +#ifdef DEBUG + if (ptab->r.o.free_id_data) { + Uint32 ix, pix, data; + int free_pids = 0; + int null_slots = 0; + + for (ix=0; ix < ptab->r.o.max; ix++) { + if (erts_smp_atomic32_read_nob(&ptab->r.o.free_id_data[ix]) != ptab->r.o.invalid_data) { + ++free_pids; + data = erts_smp_atomic32_read_nob(&ptab->r.o.free_id_data[ix]); + pix = erts_ptab_data2pix(ptab, (Eterm) data); + ASSERT(erts_ptab_pix2intptr_nob(ptab, pix) == ERTS_AINT_NULL); + } + if (erts_smp_atomic_read_nob(&ptab->r.o.tab[ix]) == ERTS_AINT_NULL) { + ++null_slots; + } + } + ASSERT(free_pids == null_slots); + ASSERT(free_pids == ptab->r.o.max - erts_smp_atomic32_read_nob(&ptab->vola.tile.count)); + } +#endif +} + +Sint +erts_ptab_test_next_id(ErtsPTab *ptab, int set, Uint next) +{ + Uint64 ld; + Sint res; + Eterm data; + int first_pix = -1; + + erts_ptab_rwlock(ptab); + + assert_ptab_consistency(ptab); + + if (ptab->r.o.free_id_data) { + Uint32 id_ix, dix; + + if (set) { + Uint32 i, max_ix, num, stop_id_ix; + max_ix = ptab->r.o.max - 1; + num = next; + id_ix = (Uint32) erts_smp_atomic32_read_nob(&ptab->vola.tile.aid_ix); + + for (i=0; i <= max_ix; ++i) { + Uint32 pix; + ++num; + num &= ~(~((Uint32) 0) << ERTS_PTAB_ID_DATA_SIZE); + if (num == ptab->r.o.invalid_data) { + num += ptab->r.o.max; + num &= ~(~((Uint32) 0) << ERTS_PTAB_ID_DATA_SIZE); + } + pix = erts_ptab_data2pix(ptab, num); + if (ERTS_AINT_NULL == erts_ptab_pix2intptr_nob(ptab, pix)) { + ++id_ix; + dix = ix_to_free_id_data_ix(ptab, id_ix); + erts_smp_atomic32_set_nob(&ptab->r.o.free_id_data[dix], num); + ASSERT(pix == erts_ptab_data2pix(ptab, num)); + } + } + erts_smp_atomic32_set_nob(&ptab->vola.tile.fid_ix, id_ix); + + /* Write invalid_data in rest of free_id_data[]: */ + stop_id_ix = (1 + erts_smp_atomic32_read_nob(&ptab->vola.tile.aid_ix)) & max_ix; + while (1) { + id_ix = (id_ix+1) & max_ix; + if (id_ix == stop_id_ix) + break; + dix = ix_to_free_id_data_ix(ptab, id_ix); + erts_smp_atomic32_set_nob(&ptab->r.o.free_id_data[dix], + ptab->r.o.invalid_data); + } + } + id_ix = (Uint32) erts_smp_atomic32_read_nob(&ptab->vola.tile.aid_ix) + 1; + dix = ix_to_free_id_data_ix(ptab, id_ix); + res = (Sint) erts_smp_atomic32_read_nob(&ptab->r.o.free_id_data[dix]); + } + else { + /* Deprecated legacy algorithm... */ + if (!set) + ld = last_data_read_nob(ptab); + else { + + ld = (Uint64) next; + data = ERTS_PTAB_LastData2EtermData(ld); + if (ptab->r.o.invalid_data == data) { + ld += ptab->r.o.max; + ASSERT(erts_ptab_data2pix(ptab, data) + == erts_ptab_data2pix(ptab, + ERTS_PTAB_LastData2EtermData(ld))); + } + last_data_set_relb(ptab, ld); + } + + while (1) { + int pix; + ld++; + pix = (int) (ld % ptab->r.o.max); + if (first_pix < 0) + first_pix = pix; + else if (pix == first_pix) { + res = -1; + break; + } + if (ERTS_AINT_NULL == erts_ptab_pix2intptr_nob(ptab, pix)) { + data = ERTS_PTAB_LastData2EtermData(ld); + if (ptab->r.o.invalid_data == data) { + ld += ptab->r.o.max; + ASSERT(erts_ptab_data2pix(ptab, data) + == erts_ptab_data2pix(ptab, + ERTS_PTAB_LastData2EtermData(ld))); + data = ERTS_PTAB_LastData2EtermData(ld); + } + res = data; + break; + } + } + } + + assert_ptab_consistency(ptab); + erts_ptab_rwunlock(ptab); + + return res; +} + +static ERTS_INLINE ErtsPTabElementCommon * +ptab_pix2el(ErtsPTab *ptab, int ix) +{ + ErtsPTabElementCommon *ptab_el; + ASSERT(0 <= ix && ix < ptab->r.o.max); + ptab_el = (ErtsPTabElementCommon *) erts_ptab_pix2intptr_nob(ptab, ix); + if (ptab_el == ptab->r.o.invalid_element) + return NULL; + else + return ptab_el; +} + +Eterm +erts_debug_ptab_list(Process *c_p, ErtsPTab *ptab) +{ + int i; + Uint need; + Eterm res; + Eterm* hp; + Eterm *hp_end; + + erts_ptab_rwlock(ptab); + + res = NIL; + need = erts_ptab_count(ptab) * 2; + hp = HAlloc(c_p, need); /* we need two heap words for each id */ + hp_end = hp + need; + + /* make the list by scanning bakward */ + + + for (i = ptab->r.o.max-1; i >= 0; i--) { + ErtsPTabElementCommon *el = ptab_pix2el(ptab, i); + if (el) { + res = CONS(hp, el->id, res); + hp += 2; + } + } + + erts_ptab_rwunlock(ptab); + + HRelease(c_p, hp_end, hp); + + return res; +} + +Eterm +erts_debug_ptab_list_bif_info(Process *c_p, ErtsPTab *ptab) +{ + ERTS_DECL_AM(ptab_list_bif_info); + Eterm elements[] = { + AM_ptab_list_bif_info, + make_small((Uint) ERTS_PTAB_LIST_BIF_MIN_START_REDS), + make_small((Uint) ptab->list.data.chunks), + make_small((Uint) ERTS_PTAB_LIST_BIF_TAB_CHUNK_SIZE), + make_small((Uint) ERTS_PTAB_LIST_BIF_TAB_INSPECT_INDICES_PER_RED), + make_small((Uint) ERTS_PTAB_LIST_BIF_TAB_FREE_DELETED_REDS), + make_small((Uint) ERTS_PTAB_LIST_BIF_INSPECT_DELETED_PER_RED), + make_small((Uint) ERTS_PTAB_LIST_INSPECT_DELETED_MAX_REDS), + make_small((Uint) ERTS_PTAB_LIST_BIF_BUILD_RESULT_CONSES_PER_RED), + make_small((Uint) ERTS_PTAB_LIST_BIF_DEBUGLEVEL) + }; + Uint sz = 0; + Eterm *hp; + (void) erts_bld_tuplev(NULL, &sz, sizeof(elements)/sizeof(Eterm), elements); + hp = HAlloc(c_p, sz); + return erts_bld_tuplev(&hp, NULL, sizeof(elements)/sizeof(Eterm), elements); +} + +#if ERTS_PTAB_LIST_BIF_DEBUGLEVEL >= ERTS_PTAB_LIST_DBGLVL_CHK_FOUND_PIDS +static void +debug_ptab_list_check_found_pid(ErtsPTabListBifData *ptlbdp, + Eterm pid, + Uint64 ic, + int pid_should_be_found) +{ + int i; + for (i = 0; i < ptlbdp->pid_ix; i++) { + if (ptlbdp->pid[i] == pid && ptlbdp->debug.pid_started[i] == ic) { + ERTS_PTAB_LIST_ASSERT(pid_should_be_found); + return; + } + } + ERTS_PTAB_LIST_ASSERT(!pid_should_be_found); +} +#endif + +#if ERTS_PTAB_LIST_BIF_DEBUGLEVEL >= ERTS_PTAB_LIST_DBGLVL_CHK_RESLIST +static void +debug_ptab_list_check_res_list(Eterm list) +{ + while (is_list(list)) { + Eterm* consp = list_val(list); + Eterm hd = CAR(consp); + ERTS_PTAB_LIST_ASSERT(erts_ptab_is_valid_id(hd)); + list = CDR(consp); + } + + ERTS_PTAB_LIST_ASSERT(is_nil(list)); +} +#endif + +#if ERTS_PTAB_LIST_BIF_DEBUGLEVEL >= ERTS_PTAB_LIST_DBGLVL_CHK_PIDS + +static void +debug_ptab_list_save_all_pids(ErtsPTabListBifData *ptlbdp) +{ + int ix, tix, cpix; + ErtsPTab *ptab = ptlbdp->ptab; + ptlbdp->debug.correct_pids_verified = 0; + ptlbdp->debug.correct_pids = erts_alloc(ERTS_ALC_T_PTAB_LIST_PIDS, + sizeof(Eterm)*ptlbdp->pid_sz); + + for (tix = 0, cpix = 0; tix < ptab->r.o.max; tix++) { + ErtsPTabElementCommon *el = ptab_pix2el(ptab, tix); + if (el) { + ERTS_PTAB_LIST_ASSERT(erts_ptab_is_valid_id(el->id)); + ptlbdp->debug.correct_pids[cpix++] = el->id; + ERTS_PTAB_LIST_ASSERT(cpix <= ptlbdp->pid_sz); + } + } + ERTS_PTAB_LIST_ASSERT(cpix == ptlbdp->pid_sz); + + for (ix = 0; ix < ptlbdp->pid_sz; ix++) + ptlbdp->pid[ix] = make_small(ix); +} + +static void +debug_ptab_list_verify_all_pids(ErtsPTabListBifData *ptlbdp) +{ + int ix, cpix; + + ERTS_PTAB_LIST_ASSERT(ptlbdp->pid_ix == ptlbdp->pid_sz); + + for (ix = 0; ix < ptlbdp->pid_sz; ix++) { + int found = 0; + Eterm pid = ptlbdp->pid[ix]; + ERTS_PTAB_LIST_ASSERT(erts_ptab_is_valid_id(pid)); + for (cpix = ix; cpix < ptlbdp->pid_sz; cpix++) { + if (ptlbdp->debug.correct_pids[cpix] == pid) { + ptlbdp->debug.correct_pids[cpix] = NIL; + found = 1; + break; + } + } + if (!found) { + for (cpix = 0; cpix < ix; cpix++) { + if (ptlbdp->debug.correct_pids[cpix] == pid) { + ptlbdp->debug.correct_pids[cpix] = NIL; + found = 1; + break; + } + } + } + ERTS_PTAB_LIST_ASSERT(found); + } + ptlbdp->debug.correct_pids_verified = 1; + + erts_free(ERTS_ALC_T_PTAB_LIST_PIDS, ptlbdp->debug.correct_pids); + ptlbdp->debug.correct_pids = NULL; +} +#endif /* ERTS_PTAB_LIST_BIF_DEBUGLEVEL >= ERTS_PTAB_LIST_DBGLVL_CHK_PIDS */ + +#if ERTS_PTAB_LIST_BIF_DEBUGLEVEL >= ERTS_PTAB_LIST_DBGLVL_CHK_DEL_LIST +static void +debug_ptab_list_check_del_list(ErtsPTab *ptab) +{ + ERTS_SMP_LC_ASSERT(erts_smp_lc_ptab_is_rwlocked(ptab)); + if (!ptab->list.data.deleted.start) + ERTS_PTAB_LIST_ASSERT(!ptab->list.data.deleted.end); + else { + Uint64 curr_interval = erts_smp_current_interval_nob(erts_ptab_interval(ptab)); + Uint64 *prev_x_interval_p = NULL; + ErtsPTabDeletedElement *ptdep; + + for (ptdep = ptab->list.data.deleted.start; + ptdep; + ptdep = ptdep->next) { + if (!ptdep->prev) + ERTS_PTAB_LIST_ASSERT(ptab->list.data.deleted.start == ptdep); + else + ERTS_PTAB_LIST_ASSERT(ptdep->prev->next == ptdep); + if (!ptdep->next) + ERTS_PTAB_LIST_ASSERT(ptab->list.data.deleted.end == ptdep); + else + ERTS_PTAB_LIST_ASSERT(ptdep->next->prev == ptdep); + if (ptdep->ix < 0) { + Uint64 interval = ptdep->u.bif_invocation.interval; + ERTS_PTAB_LIST_ASSERT(interval <= curr_interval); + } + else { + Uint64 s_interval = ptdep->u.element.inserted; + Uint64 x_interval = ptdep->u.element.deleted; + + ERTS_PTAB_LIST_ASSERT(s_interval <= x_interval); + if (prev_x_interval_p) + ERTS_PTAB_LIST_ASSERT(*prev_x_interval_p <= x_interval); + prev_x_interval_p = &ptdep->u.element.deleted; + ERTS_PTAB_LIST_ASSERT( + erts_ptab_is_valid_id(ptdep->u.element.id)); + ERTS_PTAB_LIST_ASSERT(erts_ptab_id2pix(ptab, + ptdep->u.element.id) + == ptdep->ix); + + } + } + + } +} + +static void +debug_ptab_list_check_del_free_list(ErtsPTab *ptab, + ErtsPTabDeletedElement *free_list) +{ + if (ptab->list.data.deleted.start) { + ErtsPTabDeletedElement *fptdep; + ErtsPTabDeletedElement *ptdep; + + for (fptdep = free_list; fptdep; fptdep = fptdep->next) { + for (ptdep = ptab->list.data.deleted.start; + ptdep; + ptdep = ptdep->next) { + ERTS_PTAB_LIST_ASSERT(fptdep != ptdep); + } + } + } +} + +#endif + +#if ERTS_PTAB_LIST_BIF_DEBUGLEVEL != 0 + +static void +debug_ptab_list_assert_error(char* expr, const char* file, int line, const char *func) +{ + fflush(stdout); + erts_fprintf(stderr, "%s:%d:%s(): Assertion failed: %s\n", + (char *) file, line, (char *) func, expr); + fflush(stderr); + abort(); +} + +#endif diff --git a/erts/emulator/beam/erl_ptab.h b/erts/emulator/beam/erl_ptab.h new file mode 100644 index 0000000000..e3e05f14af --- /dev/null +++ b/erts/emulator/beam/erl_ptab.h @@ -0,0 +1,481 @@ +/* + * %CopyrightBegin% + * + * Copyright Ericsson AB 2012-2013. All Rights Reserved. + * + * The contents of this file are subject to the Erlang Public License, + * Version 1.1, (the "License"); you may not use this file except in + * compliance with the License. You should have received a copy of the + * Erlang Public License along with this software. If not, it can be + * retrieved online at http://www.erlang.org/. + * + * Software distributed under the License is distributed on an "AS IS" + * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See + * the License for the specific language governing rights and limitations + * under the License. + * + * %CopyrightEnd% + */ + +/* + * Description: Process/Port table implementation. + * + * Author: Rickard Green + */ + +#ifndef ERL_PTAB_H__ +#define ERL_PTAB_H__ + +#include "sys.h" +#include "erl_term.h" +#include "erl_time.h" +#include "erl_utils.h" +#define ERL_THR_PROGRESS_TSD_TYPE_ONLY +#include "erl_thr_progress.h" +#undef ERL_THR_PROGRESS_TSD_TYPE_ONLY +#include "erl_alloc.h" +#include "erl_monitors.h" + +#define ERTS_TRACER_PROC(P) ((P)->common.tracer_proc) +#define ERTS_TRACE_FLAGS(P) ((P)->common.trace_flags) + +#define ERTS_P_LINKS(P) ((P)->common.u.alive.links) +#define ERTS_P_MONITORS(P) ((P)->common.u.alive.monitors) + +#define IS_TRACED(p) \ + (ERTS_TRACER_PROC((p)) != NIL) +#define ARE_TRACE_FLAGS_ON(p,tf) \ + ((ERTS_TRACE_FLAGS((p)) & (tf|F_SENSITIVE)) == (tf)) +#define IS_TRACED_FL(p,tf) \ + ( IS_TRACED(p) && ARE_TRACE_FLAGS_ON(p,tf) ) + +typedef struct { + Eterm id; +#ifdef ERTS_SMP + erts_atomic32_t refc; +#endif + Eterm tracer_proc; + Uint trace_flags; + union { + /* --- While being alive --- */ + struct { + Uint64 started_interval; + struct reg_proc *reg; + ErtsLink *links; + ErtsMonitor *monitors; +#ifdef ERTS_SMP + ErtsSmpPTimer *ptimer; +#else + ErlTimer tm; +#endif + } alive; + + /* --- While being released --- */ + ErtsThrPrgrLaterOp release; + } u; +} ErtsPTabElementCommon; + +typedef struct ErtsPTabDeletedElement_ ErtsPTabDeletedElement; + +typedef struct { + erts_smp_rwmtx_t rwmtx; + erts_interval_t interval; + struct { + ErtsPTabDeletedElement *start; + ErtsPTabDeletedElement *end; + } deleted; + int chunks; +} ErtsPTabListData; + +typedef struct { +#ifdef ARCH_32 + erts_smp_dw_atomic_t last_data; +#else + erts_smp_atomic_t last_data; +#endif + erts_smp_atomic32_t count; + erts_smp_atomic32_t aid_ix; + erts_smp_atomic32_t fid_ix; +} ErtsPTabVolatileData; + +typedef struct { + erts_smp_atomic_t *tab; + erts_smp_atomic32_t *free_id_data; + Uint32 max; + Uint32 pix_mask; + Uint32 pix_cl_mask; + Uint32 pix_cl_shift; + Uint32 pix_cli_mask; + Uint32 pix_cli_shift; + Uint32 dix_cl_mask; + Uint32 dix_cl_shift; + Uint32 dix_cli_mask; + Uint32 dix_cli_shift; + ErtsPTabElementCommon *invalid_element; + Eterm invalid_data; + void (*release_element)(void *); + UWord element_size; +} ErtsPTabReadOnlyData; + +typedef struct { + /* + * Data mainly modified when someone is listing + * the content of the table. + */ + union { + ErtsPTabListData data; + char algn[ERTS_ALC_CACHE_LINE_ALIGN_SIZE(sizeof(ErtsPTabListData))]; + } list; + + /* + * Frequently modified data. + */ + union { + ErtsPTabVolatileData tile; + char algn[ERTS_ALC_CACHE_LINE_ALIGN_SIZE(sizeof(ErtsPTabVolatileData))]; + } vola; + + /* + * Read only data. + */ + union { + ErtsPTabReadOnlyData o; + char algn[ERTS_ALC_CACHE_LINE_ALIGN_SIZE(sizeof(ErtsPTabReadOnlyData))]; + } r; +} ErtsPTab; + +#define ERTS_PTAB_ID_DATA_SIZE 28 +#define ERTS_PTAB_ID_DATA_SHIFT (_TAG_IMMED1_SIZE) +/* ERTS_PTAB_MAX_SIZE must be a power of 2 */ +#define ERTS_PTAB_MAX_SIZE (SWORD_CONSTANT(1) << 27) +#if (ERTS_PTAB_MAX_SIZE-1) > MAX_SMALL +# error "The maximum number of processes/ports must fit in a SMALL." +#endif + + +/* + * Currently pids and ports are allowed. + */ +#if _PID_DATA_SIZE != ERTS_PTAB_ID_DATA_SIZE +# error "Unexpected pid data size" +#endif +#if _PID_DATA_SHIFT != ERTS_PTAB_ID_DATA_SHIFT +# error "Unexpected pid tag size" +#endif +#if _PORT_DATA_SIZE != ERTS_PTAB_ID_DATA_SIZE +# error "Unexpected port data size" +#endif +#if _PORT_DATA_SHIFT != ERTS_PTAB_ID_DATA_SHIFT +# error "Unexpected port tag size" +#endif + +#define ERTS_PTAB_INVALID_ID(TAG) \ + ((Eterm) \ + ((((1 << ERTS_PTAB_ID_DATA_SIZE) - 1) << ERTS_PTAB_ID_DATA_SHIFT) \ + | (TAG))) + +#define erts_ptab_is_valid_id(ID) \ + (is_internal_pid((ID)) || is_internal_port((ID))) + +void erts_ptab_init(void); +void erts_ptab_init_table(ErtsPTab *ptab, + ErtsAlcType_t atype, + void (*release_element)(void *), + ErtsPTabElementCommon *invalid_element, + int size, + UWord element_size, + char *name, + int legacy); +int erts_ptab_new_element(ErtsPTab *ptab, + ErtsPTabElementCommon *ptab_el, + void *init_arg, + void (*init_ptab_el)(void *, Eterm)); +void erts_ptab_delete_element(ErtsPTab *ptab, + ErtsPTabElementCommon *ptab_el); +int erts_ptab_initialized(ErtsPTab *ptab); +UWord erts_ptab_mem_size(ErtsPTab *ptab); + +ERTS_GLB_INLINE erts_interval_t *erts_ptab_interval(ErtsPTab *ptab); +ERTS_GLB_INLINE int erts_ptab_max(ErtsPTab *ptab); +ERTS_GLB_INLINE int erts_ptab_count(ErtsPTab *ptab); +ERTS_GLB_INLINE Uint erts_ptab_pixdata2data(ErtsPTab *ptab, Eterm pixdata); +ERTS_GLB_INLINE Uint32 erts_ptab_pixdata2pix(ErtsPTab *ptab, Eterm pixdata); +ERTS_GLB_INLINE Uint32 erts_ptab_data2pix(ErtsPTab *ptab, Eterm data); +ERTS_GLB_INLINE Uint erts_ptab_data2pixdata(ErtsPTab *ptab, Eterm data); +ERTS_GLB_INLINE Eterm erts_ptab_make_id(ErtsPTab *ptab, Eterm data, Eterm tag); +ERTS_GLB_INLINE int erts_ptab_id2pix(ErtsPTab *ptab, Eterm id); +ERTS_GLB_INLINE Uint erts_ptab_id2data(ErtsPTab *ptab, Eterm id); +ERTS_GLB_INLINE erts_aint_t erts_ptab_pix2intptr_nob(ErtsPTab *ptab, int ix); +ERTS_GLB_INLINE erts_aint_t erts_ptab_pix2intptr_ddrb(ErtsPTab *ptab, int ix); +ERTS_GLB_INLINE erts_aint_t erts_ptab_pix2intptr_rb(ErtsPTab *ptab, int ix); +ERTS_GLB_INLINE erts_aint_t erts_ptab_pix2intptr_acqb(ErtsPTab *ptab, int ix); +ERTS_GLB_INLINE void erts_ptab_inc_refc(ErtsPTabElementCommon *ptab_el); +ERTS_GLB_INLINE int erts_ptab_dec_test_refc(ErtsPTabElementCommon *ptab_el); +ERTS_GLB_INLINE int erts_ptab_add_test_refc(ErtsPTabElementCommon *ptab_el, + Sint32 add_refc); +ERTS_GLB_INLINE void erts_ptab_rlock(ErtsPTab *ptab); +ERTS_GLB_INLINE int erts_ptab_tryrlock(ErtsPTab *ptab); +ERTS_GLB_INLINE void erts_ptab_runlock(ErtsPTab *ptab); +ERTS_GLB_INLINE void erts_ptab_rwlock(ErtsPTab *ptab); +ERTS_GLB_INLINE int erts_ptab_tryrwlock(ErtsPTab *ptab); +ERTS_GLB_INLINE void erts_ptab_rwunlock(ErtsPTab *ptab); +ERTS_GLB_INLINE int erts_smp_lc_ptab_is_rlocked(ErtsPTab *ptab); +ERTS_GLB_INLINE int erts_smp_lc_ptab_is_rwlocked(ErtsPTab *ptab); + +#if ERTS_GLB_INLINE_INCL_FUNC_DEF + +ERTS_GLB_INLINE erts_interval_t * +erts_ptab_interval(ErtsPTab *ptab) +{ + return &ptab->list.data.interval; +} + +ERTS_GLB_INLINE int +erts_ptab_max(ErtsPTab *ptab) +{ + int max = ptab->r.o.max; + return max == ERTS_PTAB_MAX_SIZE ? max - 1 : max; +} + +ERTS_GLB_INLINE int +erts_ptab_count(ErtsPTab *ptab) +{ + int max = ptab->r.o.max; + erts_aint32_t res = erts_smp_atomic32_read_nob(&ptab->vola.tile.count); + if (max == ERTS_PTAB_MAX_SIZE) { + max--; + res--; + } + if (res > max) + return max; + ASSERT(res >= 0); + return (int) res; + +} + +ERTS_GLB_INLINE Uint erts_ptab_pixdata2data(ErtsPTab *ptab, Eterm pixdata) +{ + Uint32 data = ((Uint32) pixdata) & ~ptab->r.o.pix_mask; + data |= (pixdata >> ptab->r.o.pix_cl_shift) & ptab->r.o.pix_cl_mask; + data |= (pixdata & ptab->r.o.pix_cli_mask) << ptab->r.o.pix_cli_shift; + return data; +} + +ERTS_GLB_INLINE Uint32 erts_ptab_pixdata2pix(ErtsPTab *ptab, Eterm pixdata) +{ + return ((Uint32) pixdata) & ptab->r.o.pix_mask; +} + +ERTS_GLB_INLINE Uint32 erts_ptab_data2pix(ErtsPTab *ptab, Eterm data) +{ + Uint32 n, pix; + n = (Uint32) data; + pix = ((n & ptab->r.o.pix_cl_mask) << ptab->r.o.pix_cl_shift); + pix += ((n >> ptab->r.o.pix_cli_shift) & ptab->r.o.pix_cli_mask); + ASSERT(0 <= pix && pix < ptab->r.o.max); + return pix; +} + +ERTS_GLB_INLINE Uint erts_ptab_data2pixdata(ErtsPTab *ptab, Eterm data) +{ + Uint pixdata = data & ~((Uint) ptab->r.o.pix_mask); + pixdata |= (Uint) erts_ptab_data2pix(ptab, data); + ASSERT(data == erts_ptab_pixdata2data(ptab, pixdata)); + return pixdata; +} + +#if ERTS_SIZEOF_TERM == 8 + +ERTS_GLB_INLINE Eterm +erts_ptab_make_id(ErtsPTab *ptab, Eterm data, Eterm tag) +{ + HUint huint; + Uint32 low_data = (Uint32) data; + low_data &= (1 << ERTS_PTAB_ID_DATA_SIZE) - 1; + low_data <<= ERTS_PTAB_ID_DATA_SHIFT; + huint.hval[ERTS_HUINT_HVAL_HIGH] = erts_ptab_data2pix(ptab, data); + huint.hval[ERTS_HUINT_HVAL_LOW] = low_data | ((Uint32) tag); + return (Eterm) huint.val; +} + +ERTS_GLB_INLINE int +erts_ptab_id2pix(ErtsPTab *ptab, Eterm id) +{ + HUint huint; + huint.val = id; + return (int) huint.hval[ERTS_HUINT_HVAL_HIGH]; +} + +ERTS_GLB_INLINE Uint +erts_ptab_id2data(ErtsPTab *ptab, Eterm id) +{ + HUint huint; + huint.val = id; + return (Uint) (huint.hval[ERTS_HUINT_HVAL_LOW] >> ERTS_PTAB_ID_DATA_SHIFT); +} + +#elif ERTS_SIZEOF_TERM == 4 + +ERTS_GLB_INLINE Eterm +erts_ptab_make_id(ErtsPTab *ptab, Eterm data, Eterm tag) +{ + Eterm id; + data &= ((1 << ERTS_PTAB_ID_DATA_SIZE) - 1); + id = (Eterm) erts_ptab_data2pixdata(ptab, data); + return (id << ERTS_PTAB_ID_DATA_SHIFT) | tag; +} + +ERTS_GLB_INLINE int +erts_ptab_id2pix(ErtsPTab *ptab, Eterm id) +{ + Uint pixdata = (Uint) id; + pixdata >>= ERTS_PTAB_ID_DATA_SHIFT; + return (int) erts_ptab_pixdata2pix(ptab, pixdata); +} + +ERTS_GLB_INLINE Uint +erts_ptab_id2data(ErtsPTab *ptab, Eterm id) +{ + Uint pixdata = (Uint) id; + pixdata >>= ERTS_PTAB_ID_DATA_SHIFT; + return erts_ptab_pixdata2data(ptab, pixdata); +} + +#else +#error "Unsupported size of term" +#endif + +ERTS_GLB_INLINE erts_aint_t erts_ptab_pix2intptr_nob(ErtsPTab *ptab, int ix) +{ + ASSERT(0 <= ix && ix < ptab->r.o.max); + return erts_smp_atomic_read_nob(&ptab->r.o.tab[ix]); +} + +ERTS_GLB_INLINE erts_aint_t erts_ptab_pix2intptr_ddrb(ErtsPTab *ptab, int ix) +{ + ASSERT(0 <= ix && ix < ptab->r.o.max); + return erts_smp_atomic_read_ddrb(&ptab->r.o.tab[ix]); +} + +ERTS_GLB_INLINE erts_aint_t erts_ptab_pix2intptr_rb(ErtsPTab *ptab, int ix) +{ + ASSERT(0 <= ix && ix < ptab->r.o.max); + return erts_smp_atomic_read_rb(&ptab->r.o.tab[ix]); +} + +ERTS_GLB_INLINE erts_aint_t erts_ptab_pix2intptr_acqb(ErtsPTab *ptab, int ix) +{ + ASSERT(0 <= ix && ix < ptab->r.o.max); + return erts_smp_atomic_read_acqb(&ptab->r.o.tab[ix]); +} + +ERTS_GLB_INLINE void erts_ptab_inc_refc(ErtsPTabElementCommon *ptab_el) +{ +#ifdef ERTS_SMP +#ifdef ERTS_ENABLE_LOCK_CHECK + erts_aint32_t refc = erts_atomic32_inc_read_nob(&ptab_el->refc); + ERTS_SMP_LC_ASSERT(refc > 1); +#else + erts_atomic32_inc_nob(&ptab_el->refc); +#endif +#endif +} + +ERTS_GLB_INLINE int erts_ptab_dec_test_refc(ErtsPTabElementCommon *ptab_el) +{ +#ifdef ERTS_SMP + erts_aint32_t refc = erts_atomic32_dec_read_nob(&ptab_el->refc); + ERTS_SMP_LC_ASSERT(refc >= 0); + return (int) refc; +#else + return 0; +#endif +} + +ERTS_GLB_INLINE int erts_ptab_add_test_refc(ErtsPTabElementCommon *ptab_el, + Sint32 add_refc) +{ +#ifdef ERTS_SMP + erts_aint32_t refc; + +#ifndef ERTS_ENABLE_LOCK_CHECK + if (add_refc >= 0) { + erts_atomic32_add_nob(&ptab_el->refc, + (erts_aint32_t) add_refc); + return 1; + } +#endif + + refc = erts_atomic32_add_read_nob(&ptab_el->refc, + (erts_aint32_t) add_refc); + ERTS_SMP_LC_ASSERT(refc >= 0); + return (int) refc; +#else + return 0; +#endif +} + +ERTS_GLB_INLINE void erts_ptab_rlock(ErtsPTab *ptab) +{ + erts_smp_rwmtx_rlock(&ptab->list.data.rwmtx); +} + +ERTS_GLB_INLINE int erts_ptab_tryrlock(ErtsPTab *ptab) +{ + return erts_smp_rwmtx_tryrlock(&ptab->list.data.rwmtx); +} + +ERTS_GLB_INLINE void erts_ptab_runlock(ErtsPTab *ptab) +{ + erts_smp_rwmtx_runlock(&ptab->list.data.rwmtx); +} + +ERTS_GLB_INLINE void erts_ptab_rwlock(ErtsPTab *ptab) +{ + erts_smp_rwmtx_rwlock(&ptab->list.data.rwmtx); +} + +ERTS_GLB_INLINE int erts_ptab_tryrwlock(ErtsPTab *ptab) +{ + return erts_smp_rwmtx_tryrwlock(&ptab->list.data.rwmtx); +} + +ERTS_GLB_INLINE void erts_ptab_rwunlock(ErtsPTab *ptab) +{ + erts_smp_rwmtx_rwunlock(&ptab->list.data.rwmtx); +} + +ERTS_GLB_INLINE int erts_smp_lc_ptab_is_rlocked(ErtsPTab *ptab) +{ + return erts_smp_lc_rwmtx_is_rlocked(&ptab->list.data.rwmtx); +} + +ERTS_GLB_INLINE int erts_smp_lc_ptab_is_rwlocked(ErtsPTab *ptab) +{ + return erts_smp_lc_rwmtx_is_rwlocked(&ptab->list.data.rwmtx); +} + +#endif + +#endif + +#if defined(ERTS_PTAB_WANT_BIF_IMPL__) && !defined(ERTS_PTAB_LIST__) +#define ERTS_PTAB_LIST__ + +#include "erl_process.h" +#include "bif.h" + +BIF_RETTYPE erts_ptab_list(struct process *c_p, ErtsPTab *ptab); + +#endif + +#if defined(ERTS_PTAB_WANT_DEBUG_FUNCS__) && !defined(ERTS_PTAB_DEBUG_FUNCS__) +#define ERTS_PTAB_DEBUG_FUNCS__ +#include "erl_process.h" + +/* Debug functions */ +Sint erts_ptab_test_next_id(ErtsPTab *ptab, int set, Uint next); +Eterm erts_debug_ptab_list(Process *c_p, ErtsPTab *ptab); +Eterm erts_debug_ptab_list_bif_info(Process *c_p, ErtsPTab *ptab); + +#endif diff --git a/erts/emulator/beam/erl_resolv_dns.c b/erts/emulator/beam/erl_resolv_dns.c deleted file mode 100644 index 9d76fa89f8..0000000000 --- a/erts/emulator/beam/erl_resolv_dns.c +++ /dev/null @@ -1,23 +0,0 @@ -/* - * %CopyrightBegin% - * - * Copyright Ericsson AB 1997-2009. All Rights Reserved. - * - * The contents of this file are subject to the Erlang Public License, - * Version 1.1, (the "License"); you may not use this file except in - * compliance with the License. You should have received a copy of the - * Erlang Public License along with this software. If not, it can be - * retrieved online at http://www.erlang.org/. - * - * Software distributed under the License is distributed on an "AS IS" - * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See - * the License for the specific language governing rights and limitations - * under the License. - * - * %CopyrightEnd% - */ - -/* - * Set this to non-zero value if DNS should be used. - */ -int erl_use_resolver = 1; diff --git a/erts/emulator/beam/erl_resolv_nodns.c b/erts/emulator/beam/erl_resolv_nodns.c deleted file mode 100644 index f14ab68e27..0000000000 --- a/erts/emulator/beam/erl_resolv_nodns.c +++ /dev/null @@ -1,23 +0,0 @@ -/* - * %CopyrightBegin% - * - * Copyright Ericsson AB 1997-2009. All Rights Reserved. - * - * The contents of this file are subject to the Erlang Public License, - * Version 1.1, (the "License"); you may not use this file except in - * compliance with the License. You should have received a copy of the - * Erlang Public License along with this software. If not, it can be - * retrieved online at http://www.erlang.org/. - * - * Software distributed under the License is distributed on an "AS IS" - * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See - * the License for the specific language governing rights and limitations - * under the License. - * - * %CopyrightEnd% - */ - -/* - * Set this to non-zero value if DNS should be used. - */ -int erl_use_resolver = 0; diff --git a/erts/emulator/beam/erl_smp.h b/erts/emulator/beam/erl_smp.h index a32e9d9d7c..c38ef47d87 100644 --- a/erts/emulator/beam/erl_smp.h +++ b/erts/emulator/beam/erl_smp.h @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 2005-2012. All Rights Reserved. + * Copyright Ericsson AB 2005-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -26,10 +26,13 @@ #define ERL_SMP_H #include "erl_threads.h" -#ifdef ERTS_ENABLE_LOCK_COUNT +#ifdef ERTS_ENABLE_LOCK_POSITION #define erts_smp_mtx_lock(L) erts_smp_mtx_lock_x(L, __FILE__, __LINE__) +#define erts_smp_mtx_trylock(L) erts_smp_mtx_trylock_x(L, __FILE__, __LINE__) #define erts_smp_spin_lock(L) erts_smp_spin_lock_x(L, __FILE__, __LINE__) +#define erts_smp_rwmtx_tryrlock(L) erts_smp_rwmtx_tryrlock_x(L, __FILE__, __LINE__) #define erts_smp_rwmtx_rlock(L) erts_smp_rwmtx_rlock_x(L, __FILE__, __LINE__) +#define erts_smp_rwmtx_tryrwlock(L) erts_smp_rwmtx_tryrwlock_x(L, __FILE__, __LINE__) #define erts_smp_rwmtx_rwlock(L) erts_smp_rwmtx_rwlock_x(L, __FILE__, __LINE__) #define erts_smp_read_lock(L) erts_smp_read_lock_x(L, __FILE__, __LINE__) #define erts_smp_write_lock(L) erts_smp_write_lock_x(L, __FILE__, __LINE__) @@ -131,10 +134,11 @@ ERTS_GLB_INLINE void erts_smp_mtx_init_locked_x(erts_smp_mtx_t *mtx, ERTS_GLB_INLINE void erts_smp_mtx_init(erts_smp_mtx_t *mtx, char *name); ERTS_GLB_INLINE void erts_smp_mtx_init_locked(erts_smp_mtx_t *mtx, char *name); ERTS_GLB_INLINE void erts_smp_mtx_destroy(erts_smp_mtx_t *mtx); -ERTS_GLB_INLINE int erts_smp_mtx_trylock(erts_smp_mtx_t *mtx); -#ifdef ERTS_ENABLE_LOCK_COUNT -ERTS_GLB_INLINE void erts_smp_mtx_lock_x(erts_smp_mtx_t *mtx, char *file, int line); +#ifdef ERTS_ENABLE_LOCK_POSITION +ERTS_GLB_INLINE int erts_smp_mtx_trylock_x(erts_smp_mtx_t *mtx, char *file, unsigned int line); +ERTS_GLB_INLINE void erts_smp_mtx_lock_x(erts_smp_mtx_t *mtx, char *file, unsigned int line); #else +ERTS_GLB_INLINE int erts_smp_mtx_trylock(erts_smp_mtx_t *mtx); ERTS_GLB_INLINE void erts_smp_mtx_lock(erts_smp_mtx_t *mtx); #endif ERTS_GLB_INLINE void erts_smp_mtx_unlock(erts_smp_mtx_t *mtx); @@ -159,16 +163,18 @@ ERTS_GLB_INLINE void erts_smp_rwmtx_init_opt(erts_smp_rwmtx_t *rwmtx, ERTS_GLB_INLINE void erts_smp_rwmtx_init(erts_smp_rwmtx_t *rwmtx, char *name); ERTS_GLB_INLINE void erts_smp_rwmtx_destroy(erts_smp_rwmtx_t *rwmtx); -ERTS_GLB_INLINE int erts_smp_rwmtx_tryrlock(erts_smp_rwmtx_t *rwmtx); -#ifdef ERTS_ENABLE_LOCK_COUNT +#ifdef ERTS_ENABLE_LOCK_POSITION +ERTS_GLB_INLINE int erts_smp_rwmtx_tryrlock_x(erts_smp_rwmtx_t *rwmtx, char *file, unsigned int line); ERTS_GLB_INLINE void erts_smp_rwmtx_rlock_x(erts_smp_rwmtx_t *rwmtx, char *file, unsigned int line); ERTS_GLB_INLINE void erts_smp_rwmtx_rwlock_x(erts_smp_rwmtx_t *rwmtx, char *file, unsigned int line); +ERTS_GLB_INLINE int erts_smp_rwmtx_tryrwlock_x(erts_smp_rwmtx_t *rwmtx, char *file, unsigned int line); #else +ERTS_GLB_INLINE int erts_smp_rwmtx_tryrlock(erts_smp_rwmtx_t *rwmtx); ERTS_GLB_INLINE void erts_smp_rwmtx_rlock(erts_smp_rwmtx_t *rwmtx); ERTS_GLB_INLINE void erts_smp_rwmtx_rwlock(erts_smp_rwmtx_t *rwmtx); +ERTS_GLB_INLINE int erts_smp_rwmtx_tryrwlock(erts_smp_rwmtx_t *rwmtx); #endif ERTS_GLB_INLINE void erts_smp_rwmtx_runlock(erts_smp_rwmtx_t *rwmtx); -ERTS_GLB_INLINE int erts_smp_rwmtx_tryrwlock(erts_smp_rwmtx_t *rwmtx); ERTS_GLB_INLINE void erts_smp_rwmtx_rwunlock(erts_smp_rwmtx_t *rwmtx); ERTS_GLB_INLINE int erts_smp_lc_rwmtx_is_rlocked(erts_smp_rwmtx_t *mtx); ERTS_GLB_INLINE int erts_smp_lc_rwmtx_is_rwlocked(erts_smp_rwmtx_t *mtx); @@ -179,7 +185,7 @@ ERTS_GLB_INLINE void erts_smp_spinlock_init(erts_smp_spinlock_t *lock, char *name); ERTS_GLB_INLINE void erts_smp_spinlock_destroy(erts_smp_spinlock_t *lock); ERTS_GLB_INLINE void erts_smp_spin_unlock(erts_smp_spinlock_t *lock); -#ifdef ERTS_ENABLE_LOCK_COUNT +#ifdef ERTS_ENABLE_LOCK_POSITION ERTS_GLB_INLINE void erts_smp_spin_lock_x(erts_smp_spinlock_t *lock, char *file, unsigned int line); #else ERTS_GLB_INLINE void erts_smp_spin_lock(erts_smp_spinlock_t *lock); @@ -192,7 +198,7 @@ ERTS_GLB_INLINE void erts_smp_rwlock_init(erts_smp_rwlock_t *lock, char *name); ERTS_GLB_INLINE void erts_smp_rwlock_destroy(erts_smp_rwlock_t *lock); ERTS_GLB_INLINE void erts_smp_read_unlock(erts_smp_rwlock_t *lock); -#ifdef ERTS_ENABLE_LOCK_COUNT +#ifdef ERTS_ENABLE_LOCK_POSITION ERTS_GLB_INLINE void erts_smp_read_lock_x(erts_smp_rwlock_t *lock, char *file, unsigned int line); ERTS_GLB_INLINE void erts_smp_write_lock_x(erts_smp_rwlock_t *lock, char *file, unsigned int line); #else @@ -202,7 +208,8 @@ ERTS_GLB_INLINE void erts_smp_write_lock(erts_smp_rwlock_t *lock); ERTS_GLB_INLINE void erts_smp_write_unlock(erts_smp_rwlock_t *lock); ERTS_GLB_INLINE int erts_smp_lc_rwlock_is_rlocked(erts_smp_rwlock_t *lock); ERTS_GLB_INLINE int erts_smp_lc_rwlock_is_rwlocked(erts_smp_rwlock_t *lock); -ERTS_GLB_INLINE void erts_smp_tsd_key_create(erts_smp_tsd_key_t *keyp); +ERTS_GLB_INLINE void erts_smp_tsd_key_create(erts_smp_tsd_key_t *keyp, + char *keyname); ERTS_GLB_INLINE void erts_smp_tsd_key_delete(erts_smp_tsd_key_t key); ERTS_GLB_INLINE void erts_smp_tsd_set(erts_smp_tsd_key_t key, void *value); ERTS_GLB_INLINE void * erts_smp_tsd_get(erts_smp_tsd_key_t key); @@ -259,6 +266,9 @@ ERTS_GLB_INLINE void erts_smp_thr_sigwait(const sigset_t *set, int *sig); #define erts_smp_dw_atomic_read_wb erts_dw_atomic_read_wb #define erts_smp_dw_atomic_cmpxchg_wb erts_dw_atomic_cmpxchg_wb +#define erts_smp_dw_atomic_set_dirty erts_dw_atomic_set_dirty +#define erts_smp_dw_atomic_read_dirty erts_dw_atomic_read_dirty + /* Word size atomics */ #define erts_smp_atomic_init_nob erts_atomic_init_nob @@ -274,6 +284,7 @@ ERTS_GLB_INLINE void erts_smp_thr_sigwait(const sigset_t *set, int *sig); #define erts_smp_atomic_read_band_nob erts_atomic_read_band_nob #define erts_smp_atomic_xchg_nob erts_atomic_xchg_nob #define erts_smp_atomic_cmpxchg_nob erts_atomic_cmpxchg_nob +#define erts_smp_atomic_read_bset_nob erts_atomic_read_bset_nob #define erts_smp_atomic_init_mb erts_atomic_init_mb #define erts_smp_atomic_set_mb erts_atomic_set_mb @@ -288,6 +299,7 @@ ERTS_GLB_INLINE void erts_smp_thr_sigwait(const sigset_t *set, int *sig); #define erts_smp_atomic_read_band_mb erts_atomic_read_band_mb #define erts_smp_atomic_xchg_mb erts_atomic_xchg_mb #define erts_smp_atomic_cmpxchg_mb erts_atomic_cmpxchg_mb +#define erts_smp_atomic_read_bset_mb erts_atomic_read_bset_mb #define erts_smp_atomic_init_acqb erts_atomic_init_acqb #define erts_smp_atomic_set_acqb erts_atomic_set_acqb @@ -302,6 +314,7 @@ ERTS_GLB_INLINE void erts_smp_thr_sigwait(const sigset_t *set, int *sig); #define erts_smp_atomic_read_band_acqb erts_atomic_read_band_acqb #define erts_smp_atomic_xchg_acqb erts_atomic_xchg_acqb #define erts_smp_atomic_cmpxchg_acqb erts_atomic_cmpxchg_acqb +#define erts_smp_atomic_read_bset_acqb erts_atomic_read_bset_acqb #define erts_smp_atomic_init_relb erts_atomic_init_relb #define erts_smp_atomic_set_relb erts_atomic_set_relb @@ -316,6 +329,7 @@ ERTS_GLB_INLINE void erts_smp_thr_sigwait(const sigset_t *set, int *sig); #define erts_smp_atomic_read_band_relb erts_atomic_read_band_relb #define erts_smp_atomic_xchg_relb erts_atomic_xchg_relb #define erts_smp_atomic_cmpxchg_relb erts_atomic_cmpxchg_relb +#define erts_smp_atomic_read_bset_relb erts_atomic_read_bset_relb #define erts_smp_atomic_init_ddrb erts_atomic_init_ddrb #define erts_smp_atomic_set_ddrb erts_atomic_set_ddrb @@ -330,6 +344,7 @@ ERTS_GLB_INLINE void erts_smp_thr_sigwait(const sigset_t *set, int *sig); #define erts_smp_atomic_read_band_ddrb erts_atomic_read_band_ddrb #define erts_smp_atomic_xchg_ddrb erts_atomic_xchg_ddrb #define erts_smp_atomic_cmpxchg_ddrb erts_atomic_cmpxchg_ddrb +#define erts_smp_atomic_read_bset_ddrb erts_atomic_read_bset_ddrb #define erts_smp_atomic_init_rb erts_atomic_init_rb #define erts_smp_atomic_set_rb erts_atomic_set_rb @@ -344,6 +359,7 @@ ERTS_GLB_INLINE void erts_smp_thr_sigwait(const sigset_t *set, int *sig); #define erts_smp_atomic_read_band_rb erts_atomic_read_band_rb #define erts_smp_atomic_xchg_rb erts_atomic_xchg_rb #define erts_smp_atomic_cmpxchg_rb erts_atomic_cmpxchg_rb +#define erts_smp_atomic_read_bset_rb erts_atomic_read_bset_rb #define erts_smp_atomic_init_wb erts_atomic_init_wb #define erts_smp_atomic_set_wb erts_atomic_set_wb @@ -358,6 +374,10 @@ ERTS_GLB_INLINE void erts_smp_thr_sigwait(const sigset_t *set, int *sig); #define erts_smp_atomic_read_band_wb erts_atomic_read_band_wb #define erts_smp_atomic_xchg_wb erts_atomic_xchg_wb #define erts_smp_atomic_cmpxchg_wb erts_atomic_cmpxchg_wb +#define erts_smp_atomic_read_bset_wb erts_atomic_read_bset_wb + +#define erts_smp_atomic_set_dirty erts_atomic_set_dirty +#define erts_smp_atomic_read_dirty erts_atomic_read_dirty /* 32-bit atomics */ @@ -374,6 +394,7 @@ ERTS_GLB_INLINE void erts_smp_thr_sigwait(const sigset_t *set, int *sig); #define erts_smp_atomic32_read_band_nob erts_atomic32_read_band_nob #define erts_smp_atomic32_xchg_nob erts_atomic32_xchg_nob #define erts_smp_atomic32_cmpxchg_nob erts_atomic32_cmpxchg_nob +#define erts_smp_atomic32_read_bset_nob erts_atomic32_read_bset_nob #define erts_smp_atomic32_init_mb erts_atomic32_init_mb #define erts_smp_atomic32_set_mb erts_atomic32_set_mb @@ -388,6 +409,7 @@ ERTS_GLB_INLINE void erts_smp_thr_sigwait(const sigset_t *set, int *sig); #define erts_smp_atomic32_read_band_mb erts_atomic32_read_band_mb #define erts_smp_atomic32_xchg_mb erts_atomic32_xchg_mb #define erts_smp_atomic32_cmpxchg_mb erts_atomic32_cmpxchg_mb +#define erts_smp_atomic32_read_bset_mb erts_atomic32_read_bset_mb #define erts_smp_atomic32_init_acqb erts_atomic32_init_acqb #define erts_smp_atomic32_set_acqb erts_atomic32_set_acqb @@ -402,6 +424,7 @@ ERTS_GLB_INLINE void erts_smp_thr_sigwait(const sigset_t *set, int *sig); #define erts_smp_atomic32_read_band_acqb erts_atomic32_read_band_acqb #define erts_smp_atomic32_xchg_acqb erts_atomic32_xchg_acqb #define erts_smp_atomic32_cmpxchg_acqb erts_atomic32_cmpxchg_acqb +#define erts_smp_atomic32_read_bset_acqb erts_atomic32_read_bset_acqb #define erts_smp_atomic32_init_relb erts_atomic32_init_relb #define erts_smp_atomic32_set_relb erts_atomic32_set_relb @@ -416,6 +439,7 @@ ERTS_GLB_INLINE void erts_smp_thr_sigwait(const sigset_t *set, int *sig); #define erts_smp_atomic32_read_band_relb erts_atomic32_read_band_relb #define erts_smp_atomic32_xchg_relb erts_atomic32_xchg_relb #define erts_smp_atomic32_cmpxchg_relb erts_atomic32_cmpxchg_relb +#define erts_smp_atomic32_read_bset_relb erts_atomic32_read_bset_relb #define erts_smp_atomic32_init_ddrb erts_atomic32_init_ddrb #define erts_smp_atomic32_set_ddrb erts_atomic32_set_ddrb @@ -430,6 +454,7 @@ ERTS_GLB_INLINE void erts_smp_thr_sigwait(const sigset_t *set, int *sig); #define erts_smp_atomic32_read_band_ddrb erts_atomic32_read_band_ddrb #define erts_smp_atomic32_xchg_ddrb erts_atomic32_xchg_ddrb #define erts_smp_atomic32_cmpxchg_ddrb erts_atomic32_cmpxchg_ddrb +#define erts_smp_atomic32_read_bset_ddrb erts_atomic32_read_bset_ddrb #define erts_smp_atomic32_init_rb erts_atomic32_init_rb #define erts_smp_atomic32_set_rb erts_atomic32_set_rb @@ -444,6 +469,7 @@ ERTS_GLB_INLINE void erts_smp_thr_sigwait(const sigset_t *set, int *sig); #define erts_smp_atomic32_read_band_rb erts_atomic32_read_band_rb #define erts_smp_atomic32_xchg_rb erts_atomic32_xchg_rb #define erts_smp_atomic32_cmpxchg_rb erts_atomic32_cmpxchg_rb +#define erts_smp_atomic32_read_bset_rb erts_atomic32_read_bset_rb #define erts_smp_atomic32_init_wb erts_atomic32_init_wb #define erts_smp_atomic32_set_wb erts_atomic32_set_wb @@ -458,6 +484,10 @@ ERTS_GLB_INLINE void erts_smp_thr_sigwait(const sigset_t *set, int *sig); #define erts_smp_atomic32_read_band_wb erts_atomic32_read_band_wb #define erts_smp_atomic32_xchg_wb erts_atomic32_xchg_wb #define erts_smp_atomic32_cmpxchg_wb erts_atomic32_cmpxchg_wb +#define erts_smp_atomic32_read_bset_wb erts_atomic32_read_bset_wb + +#define erts_smp_atomic32_set_dirty erts_atomic32_set_dirty +#define erts_smp_atomic32_read_dirty erts_atomic32_read_dirty #else /* !ERTS_SMP */ @@ -498,6 +528,9 @@ ERTS_GLB_INLINE void erts_smp_thr_sigwait(const sigset_t *set, int *sig); #define erts_smp_dw_atomic_read_wb erts_no_dw_atomic_read #define erts_smp_dw_atomic_cmpxchg_wb erts_no_dw_atomic_cmpxchg +#define erts_smp_dw_atomic_set_dirty erts_no_dw_atomic_set +#define erts_smp_dw_atomic_read_dirty erts_no_dw_atomic_read + /* Word size atomics */ #define erts_smp_atomic_init_nob erts_no_atomic_set @@ -513,6 +546,7 @@ ERTS_GLB_INLINE void erts_smp_thr_sigwait(const sigset_t *set, int *sig); #define erts_smp_atomic_read_band_nob erts_no_atomic_read_band #define erts_smp_atomic_xchg_nob erts_no_atomic_xchg #define erts_smp_atomic_cmpxchg_nob erts_no_atomic_cmpxchg +#define erts_smp_atomic_read_bset_nob erts_no_atomic_read_bset #define erts_smp_atomic_init_mb erts_no_atomic_set #define erts_smp_atomic_set_mb erts_no_atomic_set @@ -527,6 +561,7 @@ ERTS_GLB_INLINE void erts_smp_thr_sigwait(const sigset_t *set, int *sig); #define erts_smp_atomic_read_band_mb erts_no_atomic_read_band #define erts_smp_atomic_xchg_mb erts_no_atomic_xchg #define erts_smp_atomic_cmpxchg_mb erts_no_atomic_cmpxchg +#define erts_smp_atomic_read_bset_mb erts_no_atomic_read_bset #define erts_smp_atomic_init_acqb erts_no_atomic_set #define erts_smp_atomic_set_acqb erts_no_atomic_set @@ -541,6 +576,7 @@ ERTS_GLB_INLINE void erts_smp_thr_sigwait(const sigset_t *set, int *sig); #define erts_smp_atomic_read_band_acqb erts_no_atomic_read_band #define erts_smp_atomic_xchg_acqb erts_no_atomic_xchg #define erts_smp_atomic_cmpxchg_acqb erts_no_atomic_cmpxchg +#define erts_smp_atomic_read_bset_acqb erts_no_atomic_read_bset #define erts_smp_atomic_init_relb erts_no_atomic_set #define erts_smp_atomic_set_relb erts_no_atomic_set @@ -555,6 +591,7 @@ ERTS_GLB_INLINE void erts_smp_thr_sigwait(const sigset_t *set, int *sig); #define erts_smp_atomic_read_band_relb erts_no_atomic_read_band #define erts_smp_atomic_xchg_relb erts_no_atomic_xchg #define erts_smp_atomic_cmpxchg_relb erts_no_atomic_cmpxchg +#define erts_smp_atomic_read_bset_relb erts_no_atomic_read_bset #define erts_smp_atomic_init_ddrb erts_no_atomic_set #define erts_smp_atomic_set_ddrb erts_no_atomic_set @@ -569,6 +606,7 @@ ERTS_GLB_INLINE void erts_smp_thr_sigwait(const sigset_t *set, int *sig); #define erts_smp_atomic_read_band_ddrb erts_no_atomic_read_band #define erts_smp_atomic_xchg_ddrb erts_no_atomic_xchg #define erts_smp_atomic_cmpxchg_ddrb erts_no_atomic_cmpxchg +#define erts_smp_atomic_read_bset_ddrb erts_no_atomic_read_bset #define erts_smp_atomic_init_rb erts_no_atomic_set #define erts_smp_atomic_set_rb erts_no_atomic_set @@ -583,6 +621,7 @@ ERTS_GLB_INLINE void erts_smp_thr_sigwait(const sigset_t *set, int *sig); #define erts_smp_atomic_read_band_rb erts_no_atomic_read_band #define erts_smp_atomic_xchg_rb erts_no_atomic_xchg #define erts_smp_atomic_cmpxchg_rb erts_no_atomic_cmpxchg +#define erts_smp_atomic_read_bset_rb erts_no_atomic_read_bset #define erts_smp_atomic_init_wb erts_no_atomic_set #define erts_smp_atomic_set_wb erts_no_atomic_set @@ -597,6 +636,10 @@ ERTS_GLB_INLINE void erts_smp_thr_sigwait(const sigset_t *set, int *sig); #define erts_smp_atomic_read_band_wb erts_no_atomic_read_band #define erts_smp_atomic_xchg_wb erts_no_atomic_xchg #define erts_smp_atomic_cmpxchg_wb erts_no_atomic_cmpxchg +#define erts_smp_atomic_read_bset_wb erts_no_atomic_read_bset + +#define erts_smp_atomic_set_dirty erts_no_atomic_set +#define erts_smp_atomic_read_dirty erts_no_atomic_read /* 32-bit atomics */ @@ -613,6 +656,7 @@ ERTS_GLB_INLINE void erts_smp_thr_sigwait(const sigset_t *set, int *sig); #define erts_smp_atomic32_read_band_nob erts_no_atomic32_read_band #define erts_smp_atomic32_xchg_nob erts_no_atomic32_xchg #define erts_smp_atomic32_cmpxchg_nob erts_no_atomic32_cmpxchg +#define erts_smp_atomic32_read_bset_nob erts_no_atomic32_read_bset #define erts_smp_atomic32_init_mb erts_no_atomic32_set #define erts_smp_atomic32_set_mb erts_no_atomic32_set @@ -627,6 +671,7 @@ ERTS_GLB_INLINE void erts_smp_thr_sigwait(const sigset_t *set, int *sig); #define erts_smp_atomic32_read_band_mb erts_no_atomic32_read_band #define erts_smp_atomic32_xchg_mb erts_no_atomic32_xchg #define erts_smp_atomic32_cmpxchg_mb erts_no_atomic32_cmpxchg +#define erts_smp_atomic32_read_bset_mb erts_no_atomic32_read_bset #define erts_smp_atomic32_init_acqb erts_no_atomic32_set #define erts_smp_atomic32_set_acqb erts_no_atomic32_set @@ -641,6 +686,7 @@ ERTS_GLB_INLINE void erts_smp_thr_sigwait(const sigset_t *set, int *sig); #define erts_smp_atomic32_read_band_acqb erts_no_atomic32_read_band #define erts_smp_atomic32_xchg_acqb erts_no_atomic32_xchg #define erts_smp_atomic32_cmpxchg_acqb erts_no_atomic32_cmpxchg +#define erts_smp_atomic32_read_bset_acqb erts_no_atomic32_read_bset #define erts_smp_atomic32_init_relb erts_no_atomic32_set #define erts_smp_atomic32_set_relb erts_no_atomic32_set @@ -655,6 +701,7 @@ ERTS_GLB_INLINE void erts_smp_thr_sigwait(const sigset_t *set, int *sig); #define erts_smp_atomic32_read_band_relb erts_no_atomic32_read_band #define erts_smp_atomic32_xchg_relb erts_no_atomic32_xchg #define erts_smp_atomic32_cmpxchg_relb erts_no_atomic32_cmpxchg +#define erts_smp_atomic32_read_bset_relb erts_no_atomic32_read_bset #define erts_smp_atomic32_init_ddrb erts_no_atomic32_set #define erts_smp_atomic32_set_ddrb erts_no_atomic32_set @@ -669,6 +716,7 @@ ERTS_GLB_INLINE void erts_smp_thr_sigwait(const sigset_t *set, int *sig); #define erts_smp_atomic32_read_band_ddrb erts_no_atomic32_read_band #define erts_smp_atomic32_xchg_ddrb erts_no_atomic32_xchg #define erts_smp_atomic32_cmpxchg_ddrb erts_no_atomic32_cmpxchg +#define erts_smp_atomic32_read_bset_ddrb erts_no_atomic32_read_bset #define erts_smp_atomic32_init_rb erts_no_atomic32_set #define erts_smp_atomic32_set_rb erts_no_atomic32_set @@ -683,6 +731,7 @@ ERTS_GLB_INLINE void erts_smp_thr_sigwait(const sigset_t *set, int *sig); #define erts_smp_atomic32_read_band_rb erts_no_atomic32_read_band #define erts_smp_atomic32_xchg_rb erts_no_atomic32_xchg #define erts_smp_atomic32_cmpxchg_rb erts_no_atomic32_cmpxchg +#define erts_smp_atomic32_read_bset_rb erts_no_atomic32_read_bset #define erts_smp_atomic32_init_wb erts_no_atomic32_set #define erts_smp_atomic32_set_wb erts_no_atomic32_set @@ -697,6 +746,10 @@ ERTS_GLB_INLINE void erts_smp_thr_sigwait(const sigset_t *set, int *sig); #define erts_smp_atomic32_read_band_wb erts_no_atomic32_read_band #define erts_smp_atomic32_xchg_wb erts_no_atomic32_xchg #define erts_smp_atomic32_cmpxchg_wb erts_no_atomic32_cmpxchg +#define erts_smp_atomic32_read_bset_wb erts_no_atomic32_read_bset + +#define erts_smp_atomic32_set_dirty erts_no_atomic32_set +#define erts_smp_atomic32_read_dirty erts_no_atomic32_read #endif /* !ERTS_SMP */ @@ -789,7 +842,7 @@ ERTS_GLB_INLINE void erts_smp_mtx_init_x(erts_smp_mtx_t *mtx, char *name, Eterm extra) { #ifdef ERTS_SMP - erts_mtx_init_x(mtx, name, extra); + erts_mtx_init_x(mtx, name, extra, 1); #endif } @@ -797,7 +850,7 @@ ERTS_GLB_INLINE void erts_smp_mtx_init_locked_x(erts_smp_mtx_t *mtx, char *name, Eterm extra) { #ifdef ERTS_SMP - erts_mtx_init_locked_x(mtx, name, extra); + erts_mtx_init_locked_x(mtx, name, extra, 1); #endif } @@ -826,9 +879,15 @@ erts_smp_mtx_destroy(erts_smp_mtx_t *mtx) } ERTS_GLB_INLINE int +#ifdef ERTS_ENABLE_LOCK_POSITION +erts_smp_mtx_trylock_x(erts_smp_mtx_t *mtx, char *file, unsigned int line) +#else erts_smp_mtx_trylock(erts_smp_mtx_t *mtx) +#endif { -#ifdef ERTS_SMP +#if defined(ERTS_SMP) && defined(ERTS_ENABLE_LOCK_POSITION) + return erts_mtx_trylock_x(mtx,file,line); +#elif defined(ERTS_SMP) return erts_mtx_trylock(mtx); #else return 0; @@ -838,13 +897,13 @@ erts_smp_mtx_trylock(erts_smp_mtx_t *mtx) ERTS_GLB_INLINE void -#ifdef ERTS_ENABLE_LOCK_COUNT -erts_smp_mtx_lock_x(erts_smp_mtx_t *mtx, char *file, int line) +#ifdef ERTS_ENABLE_LOCK_POSITION +erts_smp_mtx_lock_x(erts_smp_mtx_t *mtx, char *file, unsigned int line) #else erts_smp_mtx_lock(erts_smp_mtx_t *mtx) #endif { -#if defined(ERTS_SMP) && defined(ERTS_ENABLE_LOCK_COUNT) +#if defined(ERTS_SMP) && defined(ERTS_ENABLE_LOCK_POSITION) erts_mtx_lock_x(mtx, file, line); #elif defined(ERTS_SMP) erts_mtx_lock(mtx); @@ -974,9 +1033,15 @@ erts_smp_rwmtx_destroy(erts_smp_rwmtx_t *rwmtx) } ERTS_GLB_INLINE int +#ifdef ERTS_ENABLE_LOCK_POSITION +erts_smp_rwmtx_tryrlock_x(erts_smp_rwmtx_t *rwmtx, char *file, unsigned int line) +#else erts_smp_rwmtx_tryrlock(erts_smp_rwmtx_t *rwmtx) +#endif { -#ifdef ERTS_SMP +#if defined(ERTS_SMP) && defined(ERTS_ENABLE_LOCK_POSITION) + return erts_rwmtx_tryrlock_x(rwmtx, file, line); +#elif defined(ERTS_SMP) return erts_rwmtx_tryrlock(rwmtx); #else return 0; @@ -984,13 +1049,13 @@ erts_smp_rwmtx_tryrlock(erts_smp_rwmtx_t *rwmtx) } ERTS_GLB_INLINE void -#ifdef ERTS_ENABLE_LOCK_COUNT +#ifdef ERTS_ENABLE_LOCK_POSITION erts_smp_rwmtx_rlock_x(erts_smp_rwmtx_t *rwmtx, char *file, unsigned int line) #else erts_smp_rwmtx_rlock(erts_smp_rwmtx_t *rwmtx) #endif { -#if defined(ERTS_SMP) && defined(ERTS_ENABLE_LOCK_COUNT) +#if defined(ERTS_SMP) && defined(ERTS_ENABLE_LOCK_POSITION) erts_rwmtx_rlock_x(rwmtx, file, line); #elif defined(ERTS_SMP) erts_rwmtx_rlock(rwmtx); @@ -1007,9 +1072,15 @@ erts_smp_rwmtx_runlock(erts_smp_rwmtx_t *rwmtx) ERTS_GLB_INLINE int +#ifdef ERTS_ENABLE_LOCK_POSITION +erts_smp_rwmtx_tryrwlock_x(erts_smp_rwmtx_t *rwmtx, char *file, unsigned int line) +#else erts_smp_rwmtx_tryrwlock(erts_smp_rwmtx_t *rwmtx) +#endif { -#ifdef ERTS_SMP +#if defined(ERTS_SMP) && defined(ERTS_ENABLE_LOCK_POSITION) + return erts_rwmtx_tryrwlock_x(rwmtx, file, line); +#elif defined(ERTS_SMP) return erts_rwmtx_tryrwlock(rwmtx); #else return 0; @@ -1017,13 +1088,13 @@ erts_smp_rwmtx_tryrwlock(erts_smp_rwmtx_t *rwmtx) } ERTS_GLB_INLINE void -#ifdef ERTS_ENABLE_LOCK_COUNT +#ifdef ERTS_ENABLE_LOCK_POSITION erts_smp_rwmtx_rwlock_x(erts_smp_rwmtx_t *rwmtx, char *file, unsigned int line) #else erts_smp_rwmtx_rwlock(erts_smp_rwmtx_t *rwmtx) #endif { -#if defined(ERTS_SMP) && defined(ERTS_ENABLE_LOCK_COUNT) +#if defined(ERTS_SMP) && defined(ERTS_ENABLE_LOCK_POSITION) erts_rwmtx_rwlock_x(rwmtx, file, line); #elif defined(ERTS_SMP) erts_rwmtx_rwlock(rwmtx); @@ -1125,13 +1196,13 @@ erts_smp_spin_unlock(erts_smp_spinlock_t *lock) } ERTS_GLB_INLINE void -#ifdef ERTS_ENABLE_LOCK_COUNT +#ifdef ERTS_ENABLE_LOCK_POSITION erts_smp_spin_lock_x(erts_smp_spinlock_t *lock, char *file, unsigned int line) #else erts_smp_spin_lock(erts_smp_spinlock_t *lock) #endif { -#if defined(ERTS_SMP) && defined(ERTS_ENABLE_LOCK_COUNT) +#if defined(ERTS_SMP) && defined(ERTS_ENABLE_LOCK_POSITION) erts_spin_lock_x(lock, file, line); #elif defined(ERTS_SMP) erts_spin_lock(lock); @@ -1191,13 +1262,13 @@ erts_smp_read_unlock(erts_smp_rwlock_t *lock) } ERTS_GLB_INLINE void -#ifdef ERTS_ENABLE_LOCK_COUNT +#ifdef ERTS_ENABLE_LOCK_POSITION erts_smp_read_lock_x(erts_smp_rwlock_t *lock, char *file, unsigned int line) #else erts_smp_read_lock(erts_smp_rwlock_t *lock) #endif { -#if defined(ERTS_ENABLE_LOCK_COUNT) && defined(ERTS_SMP) +#if defined(ERTS_ENABLE_LOCK_POSITION) && defined(ERTS_SMP) erts_read_lock_x(lock, file, line); #elif defined(ERTS_SMP) erts_read_lock(lock); @@ -1217,13 +1288,13 @@ erts_smp_write_unlock(erts_smp_rwlock_t *lock) } ERTS_GLB_INLINE void -#ifdef ERTS_ENABLE_LOCK_COUNT +#ifdef ERTS_ENABLE_LOCK_POSITION erts_smp_write_lock_x(erts_smp_rwlock_t *lock, char *file, unsigned int line) #else erts_smp_write_lock(erts_smp_rwlock_t *lock) #endif { -#if defined(ERTS_SMP) && defined(ERTS_ENABLE_LOCK_COUNT) +#if defined(ERTS_SMP) && defined(ERTS_ENABLE_LOCK_POSITION) erts_write_lock_x(lock, file, line); #elif defined(ERTS_SMP) erts_write_lock(lock); @@ -1253,10 +1324,10 @@ erts_smp_lc_rwlock_is_rwlocked(erts_smp_rwlock_t *lock) } ERTS_GLB_INLINE void -erts_smp_tsd_key_create(erts_smp_tsd_key_t *keyp) +erts_smp_tsd_key_create(erts_smp_tsd_key_t *keyp, char* keyname) { #ifdef ERTS_SMP - erts_tsd_key_create(keyp); + erts_tsd_key_create(keyp,keyname); #endif } diff --git a/erts/emulator/beam/erl_sys_driver.h b/erts/emulator/beam/erl_sys_driver.h index d429d0ce96..dab4a94a9b 100644 --- a/erts/emulator/beam/erl_sys_driver.h +++ b/erts/emulator/beam/erl_sys_driver.h @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 2001-2009. All Rights Reserved. + * Copyright Ericsson AB 2001-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -31,7 +31,6 @@ #define ERL_SYS_DRV typedef long ErlDrvEvent; /* An event to be selected on. */ -typedef long ErlDrvPort; /* A port descriptor. */ /* typedef struct _SysDriverOpts SysDriverOpts; defined in sys.h */ diff --git a/erts/emulator/beam/erl_term.c b/erts/emulator/beam/erl_term.c index f77e8b798f..28cbe7004f 100644 --- a/erts/emulator/beam/erl_term.c +++ b/erts/emulator/beam/erl_term.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 2000-2011. All Rights Reserved. + * Copyright Ericsson AB 2000-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -23,6 +23,7 @@ #include "sys.h" #include "erl_vm.h" #include "global.h" +#include "erl_map.h" #include <stdlib.h> #include <stdio.h> @@ -85,7 +86,10 @@ unsigned tag_val_def(Wterm x) case (_TAG_HEADER_EXTERNAL_PID >> _TAG_PRIMARY_SIZE): return EXTERNAL_PID_DEF; case (_TAG_HEADER_EXTERNAL_PORT >> _TAG_PRIMARY_SIZE): return EXTERNAL_PORT_DEF; case (_TAG_HEADER_EXTERNAL_REF >> _TAG_PRIMARY_SIZE): return EXTERNAL_REF_DEF; - default: return BINARY_DEF; + case (_TAG_HEADER_REFC_BIN >> _TAG_PRIMARY_SIZE): return BINARY_DEF; + case (_TAG_HEADER_HEAP_BIN >> _TAG_PRIMARY_SIZE): return BINARY_DEF; + case (_TAG_HEADER_SUB_BIN >> _TAG_PRIMARY_SIZE): return BINARY_DEF; + case (_TAG_HEADER_MAP >> _TAG_PRIMARY_SIZE): return MAP_DEF; } break; } @@ -105,7 +109,7 @@ unsigned tag_val_def(Wterm x) break; } } - sprintf(msg, "tag_val_def: %#lx", (unsigned long) x); + erts_snprintf(msg, sizeof(msg), "tag_val_def: %#lx", (unsigned long) x); et_abort(msg, file, line); #undef file #undef line @@ -133,7 +137,7 @@ ET_DEFINE_CHECKED(Uint,unsigned_val,Eterm,is_small); ET_DEFINE_CHECKED(Sint,signed_val,Eterm,is_small); ET_DEFINE_CHECKED(Uint,atom_val,Eterm,is_atom); ET_DEFINE_CHECKED(Uint,header_arity,Eterm,is_header); -ET_DEFINE_CHECKED(Uint,arityval,Eterm,is_arity_value); +ET_DEFINE_CHECKED(Uint,arityval,Eterm,is_sane_arity_value); ET_DEFINE_CHECKED(Uint,thing_arityval,Eterm,is_thing); ET_DEFINE_CHECKED(Uint,thing_subtag,Eterm,is_thing); ET_DEFINE_CHECKED(Eterm*,binary_val,Wterm,is_binary); @@ -144,9 +148,7 @@ ET_DEFINE_CHECKED(Uint,bignum_header_arity,Eterm,_is_bignum_header); ET_DEFINE_CHECKED(Eterm*,big_val,Wterm,is_big); ET_DEFINE_CHECKED(Eterm*,float_val,Wterm,is_float); ET_DEFINE_CHECKED(Eterm*,tuple_val,Wterm,is_tuple); -ET_DEFINE_CHECKED(Uint,internal_pid_data,Eterm,is_internal_pid); ET_DEFINE_CHECKED(struct erl_node_*,internal_pid_node,Eterm,is_internal_pid); -ET_DEFINE_CHECKED(Uint,internal_port_data,Eterm,is_internal_port); ET_DEFINE_CHECKED(struct erl_node_*,internal_port_node,Eterm,is_internal_port); ET_DEFINE_CHECKED(Eterm*,internal_ref_val,Wterm,is_internal_ref); ET_DEFINE_CHECKED(Uint,internal_ref_data_words,Wterm,is_internal_ref); diff --git a/erts/emulator/beam/erl_term.h b/erts/emulator/beam/erl_term.h index c270d13365..37014ccf94 100644 --- a/erts/emulator/beam/erl_term.h +++ b/erts/emulator/beam/erl_term.h @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 2000-2011. All Rights Reserved. + * Copyright Ericsson AB 2000-2014. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -112,11 +112,11 @@ struct erl_node_; /* Declared in erl_node_tables.h */ * 1000 REFC_BINARY | | * 1001 HEAP_BINARY | BINARIES | * 1010 SUB_BINARY | | - * 1011 Not used + * 1011 Not used; see comment below * 1100 EXTERNAL_PID | | * 1101 EXTERNAL_PORT | EXTERNAL THINGS | * 1110 EXTERNAL_REF | | - * 1111 Not used + * 1111 MAP * * COMMENTS: * @@ -135,14 +135,16 @@ struct erl_node_; /* Declared in erl_node_tables.h */ #define REF_SUBTAG (0x4 << _TAG_PRIMARY_SIZE) /* REF */ #define FUN_SUBTAG (0x5 << _TAG_PRIMARY_SIZE) /* FUN */ #define FLOAT_SUBTAG (0x6 << _TAG_PRIMARY_SIZE) /* FLOAT */ -#define EXPORT_SUBTAG (0x7 << _TAG_PRIMARY_SIZE) /* FLOAT */ +#define EXPORT_SUBTAG (0x7 << _TAG_PRIMARY_SIZE) /* FLOAT */ #define _BINARY_XXX_MASK (0x3 << _TAG_PRIMARY_SIZE) #define REFC_BINARY_SUBTAG (0x8 << _TAG_PRIMARY_SIZE) /* BINARY */ #define HEAP_BINARY_SUBTAG (0x9 << _TAG_PRIMARY_SIZE) /* BINARY */ #define SUB_BINARY_SUBTAG (0xA << _TAG_PRIMARY_SIZE) /* BINARY */ +/* _BINARY_XXX_MASK depends on 0xB being unused */ #define EXTERNAL_PID_SUBTAG (0xC << _TAG_PRIMARY_SIZE) /* EXTERNAL_PID */ #define EXTERNAL_PORT_SUBTAG (0xD << _TAG_PRIMARY_SIZE) /* EXTERNAL_PORT */ #define EXTERNAL_REF_SUBTAG (0xE << _TAG_PRIMARY_SIZE) /* EXTERNAL_REF */ +#define MAP_SUBTAG (0xF << _TAG_PRIMARY_SIZE) /* MAP */ #define _TAG_HEADER_ARITYVAL (TAG_PRIMARY_HEADER|ARITYVAL_SUBTAG) @@ -159,6 +161,7 @@ struct erl_node_; /* Declared in erl_node_tables.h */ #define _TAG_HEADER_EXTERNAL_PORT (TAG_PRIMARY_HEADER|EXTERNAL_PORT_SUBTAG) #define _TAG_HEADER_EXTERNAL_REF (TAG_PRIMARY_HEADER|EXTERNAL_REF_SUBTAG) #define _TAG_HEADER_BIN_MATCHSTATE (TAG_PRIMARY_HEADER|BIN_MATCHSTATE_SUBTAG) +#define _TAG_HEADER_MAP (TAG_PRIMARY_HEADER|MAP_SUBTAG) #define _TAG_HEADER_MASK 0x3F @@ -300,8 +303,17 @@ _ET_DECLARE_CHECKED(Uint,header_arity,Eterm) #define header_arity(x) _ET_APPLY(header_arity,(x)) /* arityval access methods */ +/* Erlang Spec. 4.7.3 defines max arity to 65535 + * we will however enforce max arity of 16777215 (24 bits) + * (checked in bifs and asserted in debug) + */ +#define MAX_ARITYVAL ((((Uint)1) << 24) - 1) +#define ERTS_MAX_TUPLE_SIZE MAX_ARITYVAL + #define make_arityval(sz) _make_header((sz),_TAG_HEADER_ARITYVAL) #define is_arity_value(x) (((x) & _TAG_HEADER_MASK) == _TAG_HEADER_ARITYVAL) +#define is_sane_arity_value(x) ((((x) & _TAG_HEADER_MASK) == _TAG_HEADER_ARITYVAL) && \ + (((x) >> _HEADER_ARITY_OFFS) <= MAX_ARITYVAL)) #define is_not_arity_value(x) (!is_arity_value((x))) #define _unchecked_arityval(x) _unchecked_header_arity((x)) _ET_DECLARE_CHECKED(Uint,arityval,Eterm) @@ -345,7 +357,10 @@ _ET_DECLARE_CHECKED(Uint,thing_subtag,Eterm) #define is_value(x) ((x) != THE_NON_VALUE) /* binary object access methods */ -#define is_binary_header(x) (((x) & (_TAG_HEADER_MASK-_BINARY_XXX_MASK)) == _TAG_HEADER_REFC_BIN) +#define is_binary_header(x) \ + ((((x) & (_TAG_HEADER_MASK)) == _TAG_HEADER_REFC_BIN) || \ + (((x) & (_TAG_HEADER_MASK)) == _TAG_HEADER_HEAP_BIN) || \ + (((x) & (_TAG_HEADER_MASK)) == _TAG_HEADER_SUB_BIN)) #define make_binary(x) make_boxed((Eterm*)(x)) #define is_binary(x) (is_boxed((x)) && is_binary_header(*boxed_val((x)))) #define is_not_binary(x) (!is_binary((x))) @@ -542,12 +557,6 @@ _ET_DECLARE_CHECKED(Eterm*,tuple_val,Wterm) #define _GETBITS(X,Pos,Size) (((X) >> (Pos)) & ~(~((Uint) 0) << (Size))) /* - * Observe! New layout for pids, ports and references in R9 (see also note - * in erl_node_container_utils.h). - */ - - -/* * Creation in node specific data (pids, ports, refs) */ @@ -584,7 +593,6 @@ _ET_DECLARE_CHECKED(Eterm*,tuple_val,Wterm) * */ -#define _PID_R9_SER_SIZE 3 #define _PID_SER_SIZE (_PID_DATA_SIZE - _PID_NUM_SIZE) #define _PID_NUM_SIZE 15 @@ -598,23 +606,13 @@ _ET_DECLARE_CHECKED(Eterm*,tuple_val,Wterm) #define make_pid_data(Ser, Num) \ ((Uint) ((Ser) << _PID_NUM_SIZE | (Num))) -#define make_internal_pid(X) \ - ((Eterm) (((X) << _PID_DATA_SHIFT) | _TAG_IMMED1_PID)) - #define is_internal_pid(x) (((x) & _TAG_IMMED1_MASK) == _TAG_IMMED1_PID) #define is_not_internal_pid(x) (!is_internal_pid((x))) -#define _unchecked_internal_pid_data(x) _GET_PID_DATA((x)) -_ET_DECLARE_CHECKED(Uint,internal_pid_data,Eterm) -#define internal_pid_data(x) _ET_APPLY(internal_pid_data,(x)) - #define _unchecked_internal_pid_node(x) erts_this_node _ET_DECLARE_CHECKED(struct erl_node_*,internal_pid_node,Eterm) #define internal_pid_node(x) _ET_APPLY(internal_pid_node,(x)) -#define internal_pid_number(x) _GET_PID_NUM(internal_pid_data((x))) -#define internal_pid_serial(x) _GET_PID_SER(internal_pid_data((x))) - #define internal_pid_data_words(x) (1) /* @@ -644,7 +642,6 @@ _ET_DECLARE_CHECKED(struct erl_node_*,internal_pid_node,Eterm) * N : node number * */ -#define _PORT_R9_NUM_SIZE 18 #define _PORT_NUM_SIZE _PORT_DATA_SIZE #define _PORT_DATA_SIZE 28 @@ -654,18 +651,9 @@ _ET_DECLARE_CHECKED(struct erl_node_*,internal_pid_node,Eterm) #define _GET_PORT_NUM(X) _GETBITS((X), 0, _PORT_NUM_SIZE) -#define make_internal_port(X) \ - ((Eterm) (((X) << _PORT_DATA_SHIFT) | _TAG_IMMED1_PORT)) - #define is_internal_port(x) (((x) & _TAG_IMMED1_MASK) == _TAG_IMMED1_PORT) #define is_not_internal_port(x) (!is_internal_port(x)) -#define _unchecked_internal_port_data(x) _GET_PORT_DATA((x)) -_ET_DECLARE_CHECKED(Uint,internal_port_data,Eterm) -#define internal_port_data(x) _ET_APPLY(internal_port_data,(x)) - -#define internal_port_number(x) _GET_PORT_NUM(internal_port_data((x))) - #define _unchecked_internal_port_node(x) erts_this_node _ET_DECLARE_CHECKED(struct erl_node_*,internal_port_node,Eterm) #define internal_port_node(x) _ET_APPLY(internal_port_node,(x)) @@ -905,7 +893,8 @@ typedef struct external_thing_ { (((x) & _TAG_HEADER_MASK) == _TAG_HEADER_EXTERNAL_REF) #define is_external_header(x) \ - (((x) & (_TAG_HEADER_MASK-_BINARY_XXX_MASK)) == _TAG_HEADER_EXTERNAL_PID) + (((x) & (_TAG_HEADER_MASK-_BINARY_XXX_MASK)) == _TAG_HEADER_EXTERNAL_PID \ + && ((x) & _TAG_HEADER_MASK) != _TAG_HEADER_MAP) #define is_external(x) (is_boxed((x)) && is_external_header(*boxed_val((x)))) @@ -1082,8 +1071,8 @@ _ET_DECLARE_CHECKED(Uint,y_reg_index,Uint) /* * Backwards compatibility definitions: - * - #define virtal *_DEF constants with values that fit term order: - * number < atom < ref < fun < port < pid < tuple < nil < cons < binary + * - #define virtual *_DEF constants with values that fit term order: + * number < atom < ref < fun < port < pid < tuple < map < nil < cons < binary * - tag_val_def() function generates virtual _DEF tag * - not_eq_tags() and NUMBER_CODE() defined in terms * of the tag_val_def() function @@ -1092,19 +1081,20 @@ _ET_DECLARE_CHECKED(Uint,y_reg_index,Uint) #define BINARY_DEF 0x0 #define LIST_DEF 0x1 #define NIL_DEF 0x2 -#define TUPLE_DEF 0x3 -#define PID_DEF 0x4 -#define EXTERNAL_PID_DEF 0x5 -#define PORT_DEF 0x6 -#define EXTERNAL_PORT_DEF 0x7 -#define EXPORT_DEF 0x8 -#define FUN_DEF 0x9 -#define REF_DEF 0xa -#define EXTERNAL_REF_DEF 0xb -#define ATOM_DEF 0xc -#define FLOAT_DEF 0xd -#define BIG_DEF 0xe -#define SMALL_DEF 0xf +#define MAP_DEF 0x3 +#define TUPLE_DEF 0x4 +#define PID_DEF 0x5 +#define EXTERNAL_PID_DEF 0x6 +#define PORT_DEF 0x7 +#define EXTERNAL_PORT_DEF 0x8 +#define EXPORT_DEF 0x9 +#define FUN_DEF 0xa +#define REF_DEF 0xb +#define EXTERNAL_REF_DEF 0xc +#define ATOM_DEF 0xd +#define FLOAT_DEF 0xe +#define BIG_DEF 0xf +#define SMALL_DEF 0x10 #if ET_DEBUG extern unsigned tag_val_def_debug(Wterm, const char*, unsigned); @@ -1114,8 +1104,8 @@ extern unsigned tag_val_def(Wterm); #endif #define not_eq_tags(X,Y) (tag_val_def((X)) ^ tag_val_def((Y))) -#define NUMBER_CODE(x,y) ((tag_val_def(x) << 4) | tag_val_def(y)) -#define _NUMBER_CODE(TX,TY) ((TX << 4) | TY) +#define NUMBER_CODE(x,y) ((tag_val_def(x) << 5) | tag_val_def(y)) +#define _NUMBER_CODE(TX,TY) ((TX << 5) | TY) #define SMALL_SMALL _NUMBER_CODE(SMALL_DEF,SMALL_DEF) #define SMALL_BIG _NUMBER_CODE(SMALL_DEF,BIG_DEF) #define SMALL_FLOAT _NUMBER_CODE(SMALL_DEF,FLOAT_DEF) @@ -1144,6 +1134,7 @@ extern unsigned tag_val_def(Wterm); #define make_tuple_rel make_boxed_rel #define make_external_rel make_boxed_rel #define make_internal_ref_rel make_boxed_rel +#define make_big_rel make_boxed_rel #define binary_val_rel(RTERM, BASE) binary_val(rterm2wterm(RTERM, BASE)) #define list_val_rel(RTERM, BASE) list_val(rterm2wterm(RTERM, BASE)) diff --git a/erts/emulator/beam/erl_thr_progress.c b/erts/emulator/beam/erl_thr_progress.c index 88524bdd4c..545a0343d0 100644 --- a/erts/emulator/beam/erl_thr_progress.c +++ b/erts/emulator/beam/erl_thr_progress.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 2011-2012. All Rights Reserved. + * Copyright Ericsson AB 2011-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -96,17 +96,14 @@ #define ERTS_THR_PRGR_LFLG_BLOCK (((erts_aint32_t) 1) << 31) #define ERTS_THR_PRGR_LFLG_NO_LEADER (((erts_aint32_t) 1) << 30) -#define ERTS_THR_PRGR_LFLG_ACTIVE_MASK (~(ERTS_THR_PRGR_LFLG_NO_LEADER \ - | ERTS_THR_PRGR_LFLG_BLOCK)) +#define ERTS_THR_PRGR_LFLG_WAITING_UM (((erts_aint32_t) 1) << 29) +#define ERTS_THR_PRGR_LFLG_ACTIVE_MASK (~(ERTS_THR_PRGR_LFLG_NO_LEADER \ + | ERTS_THR_PRGR_LFLG_BLOCK \ + | ERTS_THR_PRGR_LFLG_WAITING_UM)) -#define ERTS_THR_PRGR_LFLGS_ACTIVE(LFLGS) \ +#define ERTS_THR_PRGR_LFLGS_ACTIVE(LFLGS) \ ((LFLGS) & ERTS_THR_PRGR_LFLG_ACTIVE_MASK) -#define ERTS_THR_PRGR_LFLGS_ALL_WAITING(LFLGS) \ - (((LFLGS) & (ERTS_THR_PRGR_LFLG_NO_LEADER \ - |ERTS_THR_PRGR_LFLG_ACTIVE_MASK)) \ - == ERTS_THR_PRGR_LFLG_NO_LEADER) - /* * We use a 64-bit value for thread progress. By this wrapping of * the thread progress will more or less never occur. @@ -262,6 +259,11 @@ typedef struct { erts_atomic32_t managed_count; erts_atomic32_t managed_id; erts_atomic32_t unmanaged_id; + int chk_next_ix; + struct { + int waiting; + erts_atomic32_t current; + } umrefc_ix; } ErtsThrPrgrMiscData; typedef struct { @@ -276,12 +278,18 @@ typedef union { char align__[ERTS_ALC_CACHE_LINE_ALIGN_SIZE(sizeof(ErtsThrPrgrElement))]; } ErtsThrPrgrArray; +typedef union { + erts_atomic_t refc; + char align__[ERTS_ALC_CACHE_LINE_ALIGN_SIZE(sizeof(erts_atomic_t))]; +} ErtsThrPrgrUnmanagedRefc; + typedef struct { union { ErtsThrPrgrMiscData data; char align__[ERTS_ALC_CACHE_LINE_ALIGN_SIZE( sizeof(ErtsThrPrgrMiscData))]; } misc; + ErtsThrPrgrUnmanagedRefc umrefc[2]; ErtsThrPrgrArray *thr; struct { int no; @@ -346,7 +354,9 @@ init_tmp_thr_prgr_data(ErtsThrPrgrData *tpd) tpd->is_managed = 0; tpd->is_blocking = 0; tpd->is_temporary = 1; - +#ifdef ERTS_ENABLE_LOCK_CHECK + tpd->is_delaying = 0; +#endif erts_tsd_set(erts_thr_prgr_data_key__, (void *) tpd); } @@ -407,8 +417,9 @@ void erts_thr_progress_pre_init(void) { intrnl = NULL; - erts_tsd_key_create(&erts_thr_prgr_data_key__); - init_nob(&erts_thr_prgr__.current, 0); + erts_tsd_key_create(&erts_thr_prgr_data_key__, + "erts_thr_prgr_data_key"); + init_nob(&erts_thr_prgr__.current, ERTS_THR_PRGR_VAL_FIRST); } void @@ -461,6 +472,12 @@ erts_thr_progress_init(int no_schedulers, int managed, int unmanaged) erts_atomic32_init_nob(&intrnl->misc.data.managed_count, 0); erts_atomic32_init_nob(&intrnl->misc.data.managed_id, no_schedulers); erts_atomic32_init_nob(&intrnl->misc.data.unmanaged_id, -1); + intrnl->misc.data.chk_next_ix = 0; + intrnl->misc.data.umrefc_ix.waiting = -1; + erts_atomic32_init_nob(&intrnl->misc.data.umrefc_ix.current, 0); + + erts_atomic_init_nob(&intrnl->umrefc[0].refc, (erts_aint_t) 0); + erts_atomic_init_nob(&intrnl->umrefc[1].refc, (erts_aint_t) 0); intrnl->thr = (ErtsThrPrgrArray *) ptr; ptr += thr_arr_sz; @@ -547,6 +564,9 @@ erts_thr_progress_register_unmanaged_thread(ErtsThrPrgrCallbacks *callbacks) tpd->is_managed = 0; tpd->is_blocking = is_blocking; tpd->is_temporary = 0; +#ifdef ERTS_ENABLE_LOCK_CHECK + tpd->is_delaying = 0; +#endif ASSERT(tpd->id >= 0); if (tpd->id >= intrnl->unmanaged.no) erl_exit(ERTS_ABORT_EXIT, @@ -600,6 +620,9 @@ erts_thr_progress_register_managed_thread(ErtsSchedulerData *esdp, tpd->is_managed = 1; tpd->is_blocking = is_blocking; tpd->is_temporary = 0; +#ifdef ERTS_ENABLE_LOCK_CHECK + tpd->is_delaying = 1; +#endif init_wakeup_request_array(&tpd->wakeup_request[0]); @@ -607,8 +630,8 @@ erts_thr_progress_register_managed_thread(ErtsSchedulerData *esdp, tpd->leader = 0; tpd->active = 1; - tpd->previous.local = 0; - tpd->previous.current = ERTS_THR_PRGR_VAL_WAITING; + tpd->confirmed = 0; + tpd->leader_state.current = ERTS_THR_PRGR_VAL_WAITING; erts_tsd_set(erts_thr_prgr_data_key__, (void *) tpd); erts_atomic32_inc_nob(&intrnl->misc.data.lflgs); @@ -651,60 +674,113 @@ leader_update(ErtsThrPrgrData *tpd) block_thread(tpd); } else { + ErtsThrPrgrVal current; + int ix, chk_next_ix, umrefc_ix, my_ix, no_managed, waiting_unmanaged; erts_aint32_t lflgs; ErtsThrPrgrVal next; - int ix, sz, make_progress; + erts_aint_t refc; - if (tpd->previous.current == ERTS_THR_PRGR_VAL_WAITING) { - /* Took over as leader from another thread */ - tpd->previous.current = read_acqb(&erts_thr_prgr__.current); - tpd->previous.next = tpd->previous.current; - tpd->previous.next++; - if (tpd->previous.next == ERTS_THR_PRGR_VAL_WAITING) - tpd->previous.next = 0; - } + my_ix = tpd->id; - if (tpd->previous.local == tpd->previous.current) { - ErtsThrPrgrVal val = tpd->previous.current + 1; - if (val == ERTS_THR_PRGR_VAL_WAITING) - val = 0; - tpd->previous.local = val; - set_mb(&intrnl->thr[tpd->id].data.current, val); + if (tpd->leader_state.current == ERTS_THR_PRGR_VAL_WAITING) { + /* Took over as leader from another thread */ + tpd->leader_state.current = read_nob(&erts_thr_prgr__.current); + tpd->leader_state.next = tpd->leader_state.current; + tpd->leader_state.next++; + if (tpd->leader_state.next == ERTS_THR_PRGR_VAL_WAITING) + tpd->leader_state.next = 0; + tpd->leader_state.chk_next_ix = intrnl->misc.data.chk_next_ix; + tpd->leader_state.umrefc_ix.waiting = intrnl->misc.data.umrefc_ix.waiting; + tpd->leader_state.umrefc_ix.current = + (int) erts_atomic32_read_nob(&intrnl->misc.data.umrefc_ix.current); + + if (tpd->confirmed == tpd->leader_state.current) { + ErtsThrPrgrVal val = tpd->leader_state.current + 1; + if (val == ERTS_THR_PRGR_VAL_WAITING) + val = 0; + tpd->confirmed = val; + set_mb(&intrnl->thr[my_ix].data.current, val); + } } - next = tpd->previous.next; - make_progress = 1; - sz = intrnl->managed.no; - for (ix = 0; ix < sz; ix++) { - ErtsThrPrgrVal tmp; - tmp = read_nob(&intrnl->thr[ix].data.current); - if (tmp != next && tmp != ERTS_THR_PRGR_VAL_WAITING) { - make_progress = 0; - ASSERT(erts_thr_progress_has_passed__(next, tmp)); - break; + next = tpd->leader_state.next; + + waiting_unmanaged = 0; + umrefc_ix = -1; /* Shut up annoying warning */ + + chk_next_ix = tpd->leader_state.chk_next_ix; + no_managed = intrnl->managed.no; + ASSERT(0 <= chk_next_ix && chk_next_ix <= no_managed); + /* Check manged threads */ + if (chk_next_ix < no_managed) { + for (ix = chk_next_ix; ix < no_managed; ix++) { + ErtsThrPrgrVal tmp; + if (ix == my_ix) + continue; + tmp = read_nob(&intrnl->thr[ix].data.current); + if (tmp != next && tmp != ERTS_THR_PRGR_VAL_WAITING) { + tpd->leader_state.chk_next_ix = ix; + ASSERT(erts_thr_progress_has_passed__(next, tmp)); + goto done; + } } } - if (make_progress) { - ErtsThrPrgrVal current = next; + /* Check unmanged threads */ + waiting_unmanaged = tpd->leader_state.umrefc_ix.waiting != -1; + umrefc_ix = (waiting_unmanaged + ? tpd->leader_state.umrefc_ix.waiting + : tpd->leader_state.umrefc_ix.current); + refc = erts_atomic_read_nob(&intrnl->umrefc[umrefc_ix].refc); + ASSERT(refc >= 0); + if (refc != 0) { + int new_umrefc_ix; + + if (waiting_unmanaged) + goto done; + + new_umrefc_ix = (umrefc_ix + 1) & 0x1; + tpd->leader_state.umrefc_ix.waiting = umrefc_ix; + tpd->leader_state.chk_next_ix = no_managed; + erts_atomic32_set_nob(&intrnl->misc.data.umrefc_ix.current, + (erts_aint32_t) new_umrefc_ix); + ETHR_MEMBAR(ETHR_StoreLoad); + refc = erts_atomic_read_nob(&intrnl->umrefc[umrefc_ix].refc); + ASSERT(refc >= 0); + waiting_unmanaged = 1; + if (refc != 0) + goto done; + } - next++; - if (next == ERTS_THR_PRGR_VAL_WAITING) - next = 0; + /* Make progress */ + current = next; - set_nob(&intrnl->thr[tpd->id].data.current, next); - set_mb(&erts_thr_prgr__.current, current); - tpd->previous.local = next; - tpd->previous.next = next; - tpd->previous.current = current; + next++; + if (next == ERTS_THR_PRGR_VAL_WAITING) + next = 0; + + set_nob(&intrnl->thr[my_ix].data.current, next); + set_mb(&erts_thr_prgr__.current, current); + tpd->confirmed = next; + tpd->leader_state.next = next; + tpd->leader_state.current = current; #if ERTS_THR_PRGR_PRINT_VAL - if (current % 1000 == 0) - erts_fprintf(stderr, "%b64u\n", current); + if (current % 1000 == 0) + erts_fprintf(stderr, "%b64u\n", current); #endif - handle_wakeup_requests(current); + handle_wakeup_requests(current); + + if (waiting_unmanaged) { + waiting_unmanaged = 0; + tpd->leader_state.umrefc_ix.waiting = -1; + erts_atomic32_read_band_nob(&intrnl->misc.data.lflgs, + ~ERTS_THR_PRGR_LFLG_WAITING_UM); } + tpd->leader_state.chk_next_ix = 0; + + done: if (tpd->active) { lflgs = erts_atomic32_read_nob(&intrnl->misc.data.lflgs); @@ -712,20 +788,46 @@ leader_update(ErtsThrPrgrData *tpd) (void) block_thread(tpd); } else { + int force_wakeup_check = 0; + erts_aint32_t set_flags = ERTS_THR_PRGR_LFLG_NO_LEADER; tpd->leader = 0; - tpd->previous.current = ERTS_THR_PRGR_VAL_WAITING; + tpd->leader_state.current = ERTS_THR_PRGR_VAL_WAITING; #if ERTS_THR_PRGR_PRINT_LEADER erts_fprintf(stderr, "L <- %d\n", tpd->id); #endif ERTS_THR_PROGRESS_STATE_DEBUG_SET_LEADER(tpd->id, 0); + intrnl->misc.data.umrefc_ix.waiting + = tpd->leader_state.umrefc_ix.waiting; + if (waiting_unmanaged) + set_flags |= ERTS_THR_PRGR_LFLG_WAITING_UM; + lflgs = erts_atomic32_read_bor_relb(&intrnl->misc.data.lflgs, - ERTS_THR_PRGR_LFLG_NO_LEADER); + set_flags); + lflgs |= set_flags; if (lflgs & ERTS_THR_PRGR_LFLG_BLOCK) lflgs = block_thread(tpd); - if (ERTS_THR_PRGR_LFLGS_ACTIVE(lflgs) == 0 && got_sched_wakeups()) + + if (waiting_unmanaged) { + /* Need to check umrefc again */ + ETHR_MEMBAR(ETHR_StoreLoad); + refc = erts_atomic_read_nob(&intrnl->umrefc[umrefc_ix].refc); + if (refc == 0) { + /* Need to force wakeup check */ + force_wakeup_check = 1; + } + } + + if ((force_wakeup_check + || ((lflgs & (ERTS_THR_PRGR_LFLG_NO_LEADER + | ERTS_THR_PRGR_LFLG_WAITING_UM + | ERTS_THR_PRGR_LFLG_ACTIVE_MASK)) + == ERTS_THR_PRGR_LFLG_NO_LEADER)) + && got_sched_wakeups()) { + /* Someone need to make progress */ wakeup_managed(0); + } } } @@ -744,11 +846,11 @@ update(ErtsThrPrgrData *tpd) erts_aint32_t lflgs; res = 0; val = read_acqb(&erts_thr_prgr__.current); - if (tpd->previous.local == val) { + if (tpd->confirmed == val) { val++; if (val == ERTS_THR_PRGR_VAL_WAITING) val = 0; - tpd->previous.local = val; + tpd->confirmed = val; set_mb(&intrnl->thr[tpd->id].data.current, val); } @@ -801,12 +903,19 @@ erts_thr_progress_prepare_wait(ErtsSchedulerData *esdp) block_count_dec(); - tpd->previous.local = ERTS_THR_PRGR_VAL_WAITING; + tpd->confirmed = ERTS_THR_PRGR_VAL_WAITING; set_mb(&intrnl->thr[tpd->id].data.current, ERTS_THR_PRGR_VAL_WAITING); lflgs = erts_atomic32_read_nob(&intrnl->misc.data.lflgs); - if (ERTS_THR_PRGR_LFLGS_ALL_WAITING(lflgs) && got_sched_wakeups()) - wakeup_managed(0); /* Someone need to make progress */ + + if ((lflgs & (ERTS_THR_PRGR_LFLG_NO_LEADER + | ERTS_THR_PRGR_LFLG_WAITING_UM + | ERTS_THR_PRGR_LFLG_ACTIVE_MASK)) + == ERTS_THR_PRGR_LFLG_NO_LEADER + && got_sched_wakeups()) { + /* Someone need to make progress */ + wakeup_managed(0); + } } void @@ -828,7 +937,7 @@ erts_thr_progress_finalize_wait(ErtsSchedulerData *esdp) val++; if (val == ERTS_THR_PRGR_VAL_WAITING) val = 0; - tpd->previous.local = val; + tpd->confirmed = val; set_mb(&intrnl->thr[tpd->id].data.current, val); val = read_acqb(&erts_thr_prgr__.current); if (current == val) @@ -875,6 +984,68 @@ erts_thr_progress_active(ErtsSchedulerData *esdp, int on) } +static ERTS_INLINE void +unmanaged_continue(ErtsThrPrgrDelayHandle handle) +{ + int umrefc_ix = (int) handle; + erts_aint_t refc; + + ASSERT(umrefc_ix == 0 || umrefc_ix == 1); + refc = erts_atomic_dec_read_relb(&intrnl->umrefc[umrefc_ix].refc); + ASSERT(refc >= 0); + if (refc == 0) { + erts_aint_t lflgs; + ERTS_THR_READ_MEMORY_BARRIER; + lflgs = erts_atomic32_read_nob(&intrnl->misc.data.lflgs); + if ((lflgs & (ERTS_THR_PRGR_LFLG_NO_LEADER + | ERTS_THR_PRGR_LFLG_WAITING_UM + | ERTS_THR_PRGR_LFLG_ACTIVE_MASK)) + == (ERTS_THR_PRGR_LFLG_NO_LEADER|ERTS_THR_PRGR_LFLG_WAITING_UM) + && got_sched_wakeups()) { + /* Others waiting for us... */ + wakeup_managed(0); + } + } +} + +void +erts_thr_progress_unmanaged_continue__(ErtsThrPrgrDelayHandle handle) +{ +#ifdef ERTS_ENABLE_LOCK_CHECK + ErtsThrPrgrData *tpd = perhaps_thr_prgr_data(NULL); + ERTS_LC_ASSERT(tpd && tpd->is_delaying); + tpd->is_delaying = 0; + return_tmp_thr_prgr_data(tpd); +#endif + ASSERT(!erts_thr_progress_is_managed_thread()); + + unmanaged_continue(handle); +} + +ErtsThrPrgrDelayHandle +erts_thr_progress_unmanaged_delay__(void) +{ + int umrefc_ix; + ASSERT(!erts_thr_progress_is_managed_thread()); + umrefc_ix = (int) erts_atomic32_read_acqb(&intrnl->misc.data.umrefc_ix.current); + while (1) { + int tmp_ix; + erts_atomic_inc_acqb(&intrnl->umrefc[umrefc_ix].refc); + tmp_ix = (int) erts_atomic32_read_acqb(&intrnl->misc.data.umrefc_ix.current); + if (tmp_ix == umrefc_ix) + break; + unmanaged_continue(umrefc_ix); + umrefc_ix = tmp_ix; + } +#ifdef ERTS_ENABLE_LOCK_CHECK + { + ErtsThrPrgrData *tpd = tmp_thr_prgr_data(NULL); + tpd->is_delaying = 1; + } +#endif + return (ErtsThrPrgrDelayHandle) umrefc_ix; +} + static ERTS_INLINE int has_reached_wakeup(ErtsThrPrgrVal wakeup) { @@ -931,7 +1102,7 @@ request_wakeup_managed(ErtsThrPrgrData *tpd, ErtsThrPrgrVal value) */ ASSERT(tpd->is_managed); - ASSERT(tpd->previous.local != ERTS_THR_PRGR_VAL_WAITING); + ASSERT(tpd->confirmed != ERTS_THR_PRGR_VAL_WAITING); if (has_reached_wakeup(value)) { wakeup_managed(tpd->id); @@ -946,7 +1117,7 @@ request_wakeup_managed(ErtsThrPrgrData *tpd, ErtsThrPrgrVal value) tpd->wakeup_request[wix])); - if (tpd->previous.local == value) { + if (tpd->confirmed == value) { /* * We have already confirmed this value. We need to request * wakeup for a value later than our latest confirmed value in diff --git a/erts/emulator/beam/erl_thr_progress.h b/erts/emulator/beam/erl_thr_progress.h index 89486b065b..5f392944c2 100644 --- a/erts/emulator/beam/erl_thr_progress.h +++ b/erts/emulator/beam/erl_thr_progress.h @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 2011-2012. All Rights Reserved. + * Copyright Ericsson AB 2011-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -53,9 +53,22 @@ typedef Uint64 ErtsThrPrgrVal; #define ERTS_THR_PRGR_WAKEUP_DATA_SIZE 4 /* Need to be an even power of 2. */ typedef struct { + ErtsThrPrgrVal next; + ErtsThrPrgrVal current; + int chk_next_ix; + struct { + int current; + int waiting; + } umrefc_ix; +} ErtsThrPrgrLeaderState; + +typedef struct { int id; int is_managed; int is_blocking; +#ifdef ERTS_ENABLE_LOCK_CHECK + int is_delaying; /* managed is always delaying */ +#endif int is_temporary; /* --- Part below only for registered threads --- */ @@ -66,11 +79,8 @@ typedef struct { int leader; /* Needs to be first in the managed threads part */ int active; - struct { - ErtsThrPrgrVal local; - ErtsThrPrgrVal next; - ErtsThrPrgrVal current; - } previous; + ErtsThrPrgrVal confirmed; + ErtsThrPrgrLeaderState leader_state; } ErtsThrPrgrData; void erts_thr_progress_fatal_error_block(SWord timeout, @@ -78,6 +88,16 @@ void erts_thr_progress_fatal_error_block(SWord timeout, #endif /* ERTS_SMP */ +typedef struct ErtsThrPrgrLaterOp_ ErtsThrPrgrLaterOp; +struct ErtsThrPrgrLaterOp_ { +#ifdef ERTS_SMP + ErtsThrPrgrVal later; +#endif + void (*func)(void *); + void *data; + ErtsThrPrgrLaterOp *next; +}; + #endif #if !defined(ERL_THR_PROGRESS_H__) && !defined(ERL_THR_PROGRESS_TSD_TYPE_ONLY) @@ -88,6 +108,8 @@ void erts_thr_progress_fatal_error_block(SWord timeout, #ifdef ERTS_SMP +/* ERTS_THR_PRGR_VAL_FIRST should only be used when initializing... */ +#define ERTS_THR_PRGR_VAL_FIRST ((ErtsThrPrgrVal) 0) #define ERTS_THR_PRGR_VAL_WAITING (~((ErtsThrPrgrVal) 0)) #define ERTS_THR_PRGR_INVALID (~((ErtsThrPrgrVal) 0)) @@ -111,6 +133,11 @@ typedef struct { ERTS_THR_PRGR_ATOMIC current; } ErtsThrPrgr; +typedef int ErtsThrPrgrDelayHandle; +#define ERTS_THR_PRGR_DHANDLE_MANAGED ((ErtsThrPrgrDelayHandle) -1) +/* ERTS_THR_PRGR_DHANDLE_MANAGED implies managed thread */ +#define ERTS_THR_PRGR_DHANDLE_INVALID ((ErtsThrPrgrDelayHandle) -2) + extern ErtsThrPrgr erts_thr_prgr__; void erts_thr_progress_pre_init(void); @@ -126,6 +153,8 @@ int erts_thr_progress_update(ErtsSchedulerData *esdp); int erts_thr_progress_leader_update(ErtsSchedulerData *esdp); void erts_thr_progress_prepare_wait(ErtsSchedulerData *esdp); void erts_thr_progress_finalize_wait(ErtsSchedulerData *esdp); +ErtsThrPrgrDelayHandle erts_thr_progress_unmanaged_delay__(void); +void erts_thr_progress_unmanaged_continue__(int umrefc_ix); void erts_thr_progress_dbg_print_state(void); @@ -138,6 +167,11 @@ ERTS_GLB_INLINE ErtsThrPrgrVal erts_thr_prgr_read_acqb__(ERTS_THR_PRGR_ATOMIC *a ERTS_GLB_INLINE ErtsThrPrgrVal erts_thr_prgr_read_mb__(ERTS_THR_PRGR_ATOMIC *atmc); ERTS_GLB_INLINE int erts_thr_progress_is_managed_thread(void); +ERTS_GLB_INLINE ErtsThrPrgrDelayHandle erts_thr_progress_unmanaged_delay(void); +ERTS_GLB_INLINE void erts_thr_progress_unmanaged_continue(ErtsThrPrgrDelayHandle handle); +#ifdef ERTS_ENABLE_LOCK_CHECK +ERTS_GLB_INLINE int erts_thr_progress_lc_is_delaying(void); +#endif ERTS_GLB_INLINE ErtsThrPrgrVal erts_thr_progress_current_to_later__(ErtsThrPrgrVal val); ERTS_GLB_INLINE ErtsThrPrgrVal erts_thr_progress_later(ErtsSchedulerData *); ERTS_GLB_INLINE ErtsThrPrgrVal erts_thr_progress_current(void); @@ -219,6 +253,35 @@ erts_thr_progress_is_managed_thread(void) return tpd && tpd->is_managed; } +ERTS_GLB_INLINE ErtsThrPrgrDelayHandle +erts_thr_progress_unmanaged_delay(void) +{ + if (erts_thr_progress_is_managed_thread()) + return ERTS_THR_PRGR_DHANDLE_MANAGED; /* Nothing to do */ + else + return erts_thr_progress_unmanaged_delay__(); +} + +ERTS_GLB_INLINE void +erts_thr_progress_unmanaged_continue(ErtsThrPrgrDelayHandle handle) +{ + ASSERT(handle != ERTS_THR_PRGR_DHANDLE_MANAGED + || erts_thr_progress_is_managed_thread()); + if (handle != ERTS_THR_PRGR_DHANDLE_MANAGED) + erts_thr_progress_unmanaged_continue__(handle); +} + +#ifdef ERTS_ENABLE_LOCK_CHECK + +ERTS_GLB_INLINE int +erts_thr_progress_lc_is_delaying(void) +{ + ErtsThrPrgrData *tpd = erts_tsd_get(erts_thr_prgr_data_key__); + return tpd && tpd->is_delaying; +} + +#endif + ERTS_GLB_INLINE ErtsThrPrgrVal erts_thr_progress_current_to_later__(ErtsThrPrgrVal val) { @@ -238,7 +301,7 @@ erts_thr_progress_later(ErtsSchedulerData *esdp) if (esdp) { tpd = &esdp->thr_progress_data; managed_thread: - val = tpd->previous.local; + val = tpd->confirmed; ERTS_THR_MEMORY_BARRIER; } else { diff --git a/erts/emulator/beam/erl_thr_queue.c b/erts/emulator/beam/erl_thr_queue.c index f07964a265..f8ca87ddcc 100644 --- a/erts/emulator/beam/erl_thr_queue.c +++ b/erts/emulator/beam/erl_thr_queue.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 2011-2012. All Rights Reserved. + * Copyright Ericsson AB 2011-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -113,6 +113,11 @@ sl_element_free(ErtsThrQElement_t *p) #endif +#define ErtsThrQDirtyReadEl(A) \ + ((ErtsThrQElement_t *) erts_atomic_read_dirty((A))) +#define ErtsThrQDirtySetEl(A, V) \ + erts_atomic_set_dirty((A), (erts_aint_t) (V)) + typedef union { ErtsThrQ_t q; char align__[ERTS_ALC_CACHE_LINE_ALIGN_SIZE(sizeof(ErtsThrQ_t))]; @@ -137,7 +142,7 @@ erts_thr_q_initialize(ErtsThrQ_t *q, ErtsThrQInit_t *qi) q->last = NULL; q->q.blk = NULL; #else - erts_atomic_init_nob(&q->tail.data.marker.next.atmc, ERTS_AINT_NULL); + erts_atomic_init_nob(&q->tail.data.marker.next, ERTS_AINT_NULL); q->tail.data.marker.data.ptr = NULL; erts_atomic_init_nob(&q->tail.data.last, (erts_aint_t) &q->tail.data.marker); @@ -150,7 +155,7 @@ erts_thr_q_initialize(ErtsThrQ_t *q, ErtsThrQInit_t *qi) if (!q->tail.data.notify) q->tail.data.notify = noop_callback; - q->head.head.ptr = &q->tail.data.marker; + erts_atomic_init_nob(&q->head.head, (erts_aint_t) &q->tail.data.marker); q->head.live = qi->live.objects; q->head.first = &q->tail.data.marker; q->head.unref_end = &q->tail.data.marker; @@ -296,17 +301,17 @@ element_free(ErtsThrQ_t *q, ErtsThrQElement_t *el) #ifdef USE_THREADS static ERTS_INLINE ErtsThrQElement_t * -enqueue_managed(ErtsThrQ_t *q, ErtsThrQElement_t *this, int want_last) +enqueue_managed(ErtsThrQ_t *q, ErtsThrQElement_t *this) { erts_aint_t ilast, itmp; - erts_atomic_init_nob(&this->next.atmc, ERTS_AINT_NULL); + erts_atomic_init_nob(&this->next, ERTS_AINT_NULL); /* Enqueue at end of list... */ ilast = erts_atomic_read_nob(&q->tail.data.last); while (1) { ErtsThrQElement_t *last = (ErtsThrQElement_t *) ilast; - itmp = erts_atomic_cmpxchg_mb(&last->next.atmc, + itmp = erts_atomic_cmpxchg_mb(&last->next, (erts_aint_t) this, ERTS_AINT_NULL); if (itmp == ERTS_AINT_NULL) @@ -316,31 +321,57 @@ enqueue_managed(ErtsThrQ_t *q, ErtsThrQElement_t *this, int want_last) /* Move last pointer forward... */ while (1) { - if (want_last) { - if (erts_atomic_read_rb(&this->next.atmc) != ERTS_AINT_NULL) { - /* Someone else will move it forward */ - ilast = erts_atomic_read_rb(&q->tail.data.last); - return (ErtsThrQElement_t *) ilast; - } - } - else { - if (erts_atomic_read_nob(&this->next.atmc) != ERTS_AINT_NULL) { - /* Someone else will move it forward */ - return NULL; - } + if (erts_atomic_read_rb(&this->next) != ERTS_AINT_NULL) { + /* Someone else will move it forward */ + ilast = erts_atomic_read_rb(&q->tail.data.last); + return (ErtsThrQElement_t *) ilast; } itmp = erts_atomic_cmpxchg_mb(&q->tail.data.last, (erts_aint_t) this, ilast); if (ilast == itmp) - return want_last ? this : NULL; + return this; ilast = itmp; } } +static ERTS_INLINE ErtsThrQElement_t * +enqueue_marker(ErtsThrQ_t *q, ErtsThrQElement_t **headp) +{ + int maybe_notify; + erts_aint_t inext; + ErtsThrQElement_t *last, *head; + + if (headp) + head = *headp; + else + head = ErtsThrQDirtyReadEl(&q->head.head); + + ASSERT(!q->head.used_marker); + q->head.used_marker = 1; + last = enqueue_managed(q, &q->tail.data.marker); + maybe_notify = &q->tail.data.marker == last; + inext = erts_atomic_read_acqb(&head->next); + if (inext == (erts_aint_t) &q->tail.data.marker) { + ErtsThrQDirtySetEl(&q->head.head, &q->tail.data.marker); + if (headp) + *headp = &q->tail.data.marker; + } + else if (maybe_notify) { + /* + * We need to notify; otherwise, we might loose a notification + * for a concurrently inserted element. + */ + q->head.notify(q->head.arg); + } + return last; +} + + static ErtsThrQCleanState_t clean(ErtsThrQ_t *q, int max_ops, int do_notify) { + ErtsThrQElement_t *head; erts_aint_t ilast; int um_refc_ix; int ops; @@ -349,7 +380,8 @@ clean(ErtsThrQ_t *q, int max_ops, int do_notify) ErtsThrQElement_t *tmp; restart: ASSERT(q->head.first); - if (q->head.first == q->head.head.ptr) { + head = ErtsThrQDirtyReadEl(&q->head.head); + if (q->head.first == head) { q->head.clean_reached_head_count++; if (q->head.clean_reached_head_count >= ERTS_THR_Q_MAX_CLEAN_REACHED_HEAD_COUNT) { @@ -362,19 +394,20 @@ clean(ErtsThrQ_t *q, int max_ops, int do_notify) break; if (q->head.first == &q->tail.data.marker) { q->head.used_marker = 0; - q->head.first = q->head.first->next.ptr; + q->head.first = ErtsThrQDirtyReadEl(&q->head.first->next); goto restart; } tmp = q->head.first; - q->head.first = q->head.first->next.ptr; + q->head.first = ErtsThrQDirtyReadEl(&q->head.first->next); if (q->head.deq_fini.automatic) element_free(q, tmp); else { tmp->data.ptr = (void *) (UWord) q->head.live; if (!q->head.deq_fini.start) q->head.deq_fini.start = tmp; - else if (q->head.deq_fini.end->next.ptr == &q->tail.data.marker) - q->head.deq_fini.end->next.ptr = tmp; + else if (ErtsThrQDirtyReadEl(&q->head.deq_fini.end->next) + == &q->tail.data.marker) + ErtsThrQDirtySetEl(&q->head.deq_fini.end->next, tmp); q->head.deq_fini.end = tmp; } } @@ -401,21 +434,8 @@ clean(ErtsThrQ_t *q, int max_ops, int do_notify) q->head.unref_end = q->head.next.unref_end; if (!q->head.used_marker - && q->head.unref_end == (ErtsThrQElement_t *) ilast) { - q->head.used_marker = 1; - ilast = (erts_aint_t) enqueue_managed(q, - &q->tail.data.marker, - 1); - if (q->head.head.ptr == q->head.unref_end) { - ErtsThrQElement_t *next; - next = ((ErtsThrQElement_t *) - erts_atomic_read_acqb(&q->head.head.ptr->next.atmc)); - if (next == &q->tail.data.marker) { - q->head.head.ptr->next.ptr = &q->tail.data.marker; - q->head.head.ptr = &q->tail.data.marker; - } - } - } + && q->head.unref_end == (ErtsThrQElement_t *) ilast) + ilast = (erts_aint_t) enqueue_marker(q, NULL); if (q->head.unref_end == (ErtsThrQElement_t *) ilast) ERTS_SMP_MEMORY_BARRIER; @@ -436,20 +456,16 @@ clean(ErtsThrQ_t *q, int max_ops, int do_notify) } #endif - if (q->head.first == q->head.head.ptr) { + head = ErtsThrQDirtyReadEl(&q->head.head); + if (q->head.first == head) { inspect_head: if (!q->head.used_marker) { erts_aint_t inext; - inext = erts_atomic_read_acqb(&q->head.head.ptr->next.atmc); + inext = erts_atomic_read_acqb(&head->next); if (inext == ERTS_AINT_NULL) { - q->head.used_marker = 1; - (void) enqueue_managed(q, &q->tail.data.marker, 0); - inext = erts_atomic_read_acqb(&q->head.head.ptr->next.atmc); - if (inext == (erts_aint_t) &q->tail.data.marker) { - q->head.head.ptr->next.ptr = &q->tail.data.marker; - q->head.head.ptr = &q->tail.data.marker; + enqueue_marker(q, &head); + if (head == &q->tail.data.marker) goto check_thr_progress; - } } } @@ -506,26 +522,27 @@ erts_thr_q_inspect(ErtsThrQ_t *q, int ensure_empty) #ifndef USE_THREADS return ERTS_THR_Q_CLEAN; #else + ErtsThrQElement_t *head = ErtsThrQDirtyReadEl(&q->head.head); if (ensure_empty) { erts_aint_t inext; - inext = erts_atomic_read_acqb(&q->head.head.ptr->next.atmc); + inext = erts_atomic_read_acqb(&head->next); if (inext != ERTS_AINT_NULL) { if (&q->tail.data.marker != (ErtsThrQElement_t *) inext) return ERTS_THR_Q_DIRTY; else { - q->head.head.ptr->next.ptr = (ErtsThrQElement_t *) inext; - q->head.head.ptr = (ErtsThrQElement_t *) inext; - inext = erts_atomic_read_acqb(&q->head.head.ptr->next.atmc); + head = (ErtsThrQElement_t *) inext; + ErtsThrQDirtySetEl(&q->head.head, head); + inext = erts_atomic_read_acqb(&head->next); if (inext != ERTS_AINT_NULL) return ERTS_THR_Q_DIRTY; } } } - if (q->head.first == q->head.head.ptr) { + if (q->head.first == head) { if (!q->head.used_marker) { erts_aint_t inext; - inext = erts_atomic_read_acqb(&q->head.head.ptr->next.atmc); + inext = erts_atomic_read_acqb(&head->next); if (inext == ERTS_AINT_NULL) return ERTS_THR_Q_DIRTY; } @@ -553,11 +570,11 @@ enqueue(ErtsThrQ_t *q, void *data, ErtsThrQElement_t *this) #ifndef USE_THREADS ASSERT(data); - this->next.ptr = NULL; + this->next = NULL; this->data.ptr = data; if (q->last) - q->last->next.ptr = this; + q->last->next = this; else { q->first = q->last = this; q->init.notify(q->init.arg); @@ -595,7 +612,7 @@ enqueue(ErtsThrQ_t *q, void *data, ErtsThrQElement_t *this) } } - notify = this == enqueue_managed(q, this, 1); + notify = this == enqueue_managed(q, this); #ifdef ERTS_SMP @@ -638,17 +655,17 @@ erts_thr_q_get_finalize_dequeue_data(ErtsThrQ_t *q, ErtsThrQFinDeQ_t *fdp) ErtsThrQElement_t *e = q->head.deq_fini.start; ErtsThrQElement_t *end = q->head.deq_fini.end; while (e != end) { - ASSERT(q->head.head.ptr != e); + ASSERT(ErtsThrQDirtyReadEl(&q->head.head) != e); ASSERT(q->head.first != e); ASSERT(q->head.unref_end != e); - e = e->next.ptr; + e = ErtsThrQDirtyReadEl(&e->next); } } #endif fdp->start = q->head.deq_fini.start; fdp->end = q->head.deq_fini.end; if (fdp->end) - fdp->end->next.ptr = NULL; + ErtsThrQDirtySetEl(&fdp->end->next, NULL); q->head.deq_fini.start = NULL; q->head.deq_fini.end = NULL; return fdp->start != NULL; @@ -662,7 +679,7 @@ erts_thr_q_append_finalize_dequeue_data(ErtsThrQFinDeQ_t *fdp0, #ifdef USE_THREADS if (fdp1->start) { if (fdp0->end) - fdp0->end->next.ptr = fdp1->start; + ErtsThrQDirtySetEl(&fdp0->end->next, fdp1->start); else fdp0->start = fdp1->start; fdp0->end = fdp1->end; @@ -683,7 +700,7 @@ int erts_thr_q_finalize_dequeue(ErtsThrQFinDeQ_t *state) if (!start) break; tmp = start; - start = start->next.ptr; + start = ErtsThrQDirtyReadEl(&start->next); live = (ErtsThrQLive_t) (UWord) tmp->data.ptr; element_live_free(live, tmp); } @@ -724,7 +741,7 @@ erts_thr_q_dequeue(ErtsThrQ_t *q) return NULL; tmp = q->first; res = tmp->data.ptr; - q->first = tmp->next.ptr; + q->first = tmp->next; if (!q->first) q->last = NULL; @@ -732,24 +749,26 @@ erts_thr_q_dequeue(ErtsThrQ_t *q) return res; #else + ErtsThrQElement_t *head; erts_aint_t inext; void *res; - inext = erts_atomic_read_acqb(&q->head.head.ptr->next.atmc); + head = ErtsThrQDirtyReadEl(&q->head.head); + inext = erts_atomic_read_acqb(&head->next); if (inext == ERTS_AINT_NULL) return NULL; - q->head.head.ptr->next.ptr = (ErtsThrQElement_t *) inext; - q->head.head.ptr = (ErtsThrQElement_t *) inext; - if (q->head.head.ptr == &q->tail.data.marker) { - inext = erts_atomic_read_acqb(&q->head.head.ptr->next.atmc); + head = (ErtsThrQElement_t *) inext; + ErtsThrQDirtySetEl(&q->head.head, head); + if (head == &q->tail.data.marker) { + inext = erts_atomic_read_acqb(&head->next); if (inext == ERTS_AINT_NULL) return NULL; - q->head.head.ptr->next.ptr = (ErtsThrQElement_t *) inext; - q->head.head.ptr = (ErtsThrQElement_t *) inext; + head = (ErtsThrQElement_t *) inext; + ErtsThrQDirtySetEl(&q->head.head, head); } - res = q->head.head.ptr->data.ptr; + res = head->data.ptr; #if ERTS_THR_Q_DBG_CHK_DATA - q->head.head.ptr->data.ptr = NULL; + head->data.ptr = NULL; if (!res) erl_exit(ERTS_ABORT_EXIT, "Missing data in dequeue\n"); #endif diff --git a/erts/emulator/beam/erl_thr_queue.h b/erts/emulator/beam/erl_thr_queue.h index edcf2c3823..13af758b3f 100644 --- a/erts/emulator/beam/erl_thr_queue.h +++ b/erts/emulator/beam/erl_thr_queue.h @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 2011. All Rights Reserved. + * Copyright Ericsson AB 2011-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -76,13 +76,12 @@ typedef struct { typedef struct ErtsThrQElement_t_ ErtsThrQElement_t; typedef struct ErtsThrQElement_t ErtsThrQPrepEnQ_t; -typedef union { - erts_atomic_t atmc; - ErtsThrQElement_t *ptr; -} ErtsThrQPtr_t; - struct ErtsThrQElement_t_ { - ErtsThrQPtr_t next; +#ifdef USE_THREADS + erts_atomic_t next; +#else + ErtsThrQElement_t *next; +#endif union { erts_atomic_t atmc; void *ptr; @@ -130,7 +129,7 @@ struct ErtsThrQ_t_ { * thread dequeuing. */ struct { - ErtsThrQPtr_t head; + erts_atomic_t head; ErtsThrQLive_t live; ErtsThrQElement_t *first; ErtsThrQElement_t *unref_end; diff --git a/erts/emulator/beam/erl_threads.h b/erts/emulator/beam/erl_threads.h index ee47c98009..80026104db 100644 --- a/erts/emulator/beam/erl_threads.h +++ b/erts/emulator/beam/erl_threads.h @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 2001-2012. All Rights Reserved. + * Copyright Ericsson AB 2001-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -258,10 +258,6 @@ #include "sys.h" -typedef struct { SWord sint[2]; } erts_no_dw_atomic_t; -typedef SWord erts_no_atomic_t; -typedef Sint32 erts_no_atomic32_t; - #ifdef USE_THREADS #define ETHR_TRY_INLINE_FUNCS @@ -285,10 +281,13 @@ typedef Sint32 erts_no_atomic32_t; #define ERTS_THR_READ_MEMORY_BARRIER ETHR_READ_MEMORY_BARRIER #define ERTS_THR_DATA_DEPENDENCY_READ_MEMORY_BARRIER ETHR_READ_DEPEND_MEMORY_BARRIER -#ifdef ERTS_ENABLE_LOCK_COUNT +#ifdef ERTS_ENABLE_LOCK_POSITION #define erts_mtx_lock(L) erts_mtx_lock_x(L, __FILE__, __LINE__) +#define erts_mtx_trylock(L) erts_mtx_trylock_x(L, __FILE__, __LINE__) #define erts_spin_lock(L) erts_spin_lock_x(L, __FILE__, __LINE__) +#define erts_rwmtx_tryrlock(L) erts_rwmtx_tryrlock_x(L, __FILE__, __LINE__) #define erts_rwmtx_rlock(L) erts_rwmtx_rlock_x(L, __FILE__, __LINE__) +#define erts_rwmtx_tryrwlock(L) erts_rwmtx_tryrwlock_x(L, __FILE__, __LINE__) #define erts_rwmtx_rwlock(L) erts_rwmtx_rwlock_x(L, __FILE__, __LINE__) #define erts_read_lock(L) erts_read_lock_x(L, __FILE__, __LINE__) #define erts_write_lock(L) erts_write_lock_x(L, __FILE__, __LINE__) @@ -411,12 +410,15 @@ typedef struct { typedef int erts_rwmtx_t; typedef int erts_tsd_key_t; typedef int erts_tse_t; -#define erts_dw_aint_t erts_no_dw_atomic_t -#define erts_dw_atomic_t erts_no_dw_atomic_t -#define erts_aint_t SWord -#define erts_atomic_t erts_no_atomic_t -#define erts_aint32_t Sint32 -#define erts_atomic32_t erts_no_atomic32_t + +typedef struct { SWord sint[2]; } erts_dw_aint_t; +typedef SWord erts_aint_t; +typedef Sint32 erts_aint32_t; + +#define erts_dw_atomic_t erts_dw_aint_t +#define erts_atomic_t erts_aint_t +#define erts_atomic32_t erts_aint32_t + #if __GNUC__ > 2 typedef struct { } erts_spinlock_t; typedef struct { } erts_rwlock_t; @@ -425,6 +427,14 @@ typedef struct { int gcc_is_buggy; } erts_spinlock_t; typedef struct { int gcc_is_buggy; } erts_rwlock_t; #endif +#ifdef WORDS_BIGENDIAN +#define ERTS_DW_AINT_LOW_WORD 1 +#define ERTS_DW_AINT_HIGH_WORD 0 +#else +#define ERTS_DW_AINT_LOW_WORD 0 +#define ERTS_DW_AINT_HIGH_WORD 1 +#endif + #define ERTS_MTX_INITER 0 #define ERTS_CND_INITER 0 #define ERTS_THR_INIT_DATA_DEF_INITER 0 @@ -433,6 +443,10 @@ typedef struct { int gcc_is_buggy; } erts_rwlock_t; #endif /* #ifdef USE_THREADS */ +#define erts_no_dw_atomic_t erts_dw_aint_t +#define erts_no_atomic_t erts_aint_t +#define erts_no_atomic32_t erts_aint32_t + #define ERTS_AINT_NULL ((erts_aint_t) NULL) #define ERTS_AINT_T_MAX (~(((erts_aint_t) 1) << (sizeof(erts_aint_t)*8-1))) @@ -450,18 +464,24 @@ ERTS_GLB_INLINE void erts_thr_exit(void *res); ERTS_GLB_INLINE void erts_thr_install_exit_handler(void (*exit_handler)(void)); ERTS_GLB_INLINE erts_tid_t erts_thr_self(void); ERTS_GLB_INLINE int erts_equal_tids(erts_tid_t x, erts_tid_t y); -ERTS_GLB_INLINE void erts_mtx_init_x(erts_mtx_t *mtx, char *name, Eterm extra); -ERTS_GLB_INLINE void erts_mtx_init_x_opt(erts_mtx_t *mtx, char *name, Eterm extra, Uint16 opt); +ERTS_GLB_INLINE void erts_mtx_init_x(erts_mtx_t *mtx, char *name, Eterm extra, + int enable_lcnt); +ERTS_GLB_INLINE void erts_mtx_init_x_opt(erts_mtx_t *mtx, char *name, Eterm extra, + Uint16 opt, int enable_lcnt); ERTS_GLB_INLINE void erts_mtx_init_locked_x(erts_mtx_t *mtx, char *name, - Eterm extra); + Eterm extra, + int enable_lcnt); ERTS_GLB_INLINE void erts_mtx_init(erts_mtx_t *mtx, char *name); ERTS_GLB_INLINE void erts_mtx_init_locked(erts_mtx_t *mtx, char *name); ERTS_GLB_INLINE void erts_mtx_destroy(erts_mtx_t *mtx); -ERTS_GLB_INLINE int erts_mtx_trylock(erts_mtx_t *mtx); -#ifdef ERTS_ENABLE_LOCK_COUNT -ERTS_GLB_INLINE void erts_mtx_lock_x(erts_mtx_t *mtx, char *file, unsigned int line); +#ifdef ERTS_ENABLE_LOCK_POSITION +ERTS_GLB_INLINE int erts_mtx_trylock_x(erts_mtx_t *mtx, char *file, + unsigned int line); +ERTS_GLB_INLINE void erts_mtx_lock_x(erts_mtx_t *mtx, char *file, + unsigned int line); #else +ERTS_GLB_INLINE int erts_mtx_trylock(erts_mtx_t *mtx); ERTS_GLB_INLINE void erts_mtx_lock(erts_mtx_t *mtx); #endif ERTS_GLB_INLINE void erts_mtx_unlock(erts_mtx_t *mtx); @@ -485,16 +505,18 @@ ERTS_GLB_INLINE void erts_rwmtx_init_opt(erts_rwmtx_t *rwmtx, ERTS_GLB_INLINE void erts_rwmtx_init(erts_rwmtx_t *rwmtx, char *name); ERTS_GLB_INLINE void erts_rwmtx_destroy(erts_rwmtx_t *rwmtx); -ERTS_GLB_INLINE int erts_rwmtx_tryrlock(erts_rwmtx_t *rwmtx); -#ifdef ERTS_ENABLE_LOCK_COUNT +#ifdef ERTS_ENABLE_LOCK_POSITION +ERTS_GLB_INLINE int erts_rwmtx_tryrlock_x(erts_rwmtx_t *rwmtx, char *file, unsigned int line); ERTS_GLB_INLINE void erts_rwmtx_rlock_x(erts_rwmtx_t *rwmtx, char *file, unsigned int line); ERTS_GLB_INLINE void erts_rwmtx_rwlock_x(erts_rwmtx_t *rwmtx, char *file, unsigned int line); +ERTS_GLB_INLINE int erts_rwmtx_tryrwlock_x(erts_rwmtx_t *rwmtx, char *file, unsigned int line); #else +ERTS_GLB_INLINE int erts_rwmtx_tryrlock(erts_rwmtx_t *rwmtx); ERTS_GLB_INLINE void erts_rwmtx_rlock(erts_rwmtx_t *rwmtx); ERTS_GLB_INLINE void erts_rwmtx_rwlock(erts_rwmtx_t *rwmtx); +ERTS_GLB_INLINE int erts_rwmtx_tryrwlock(erts_rwmtx_t *rwmtx); #endif ERTS_GLB_INLINE void erts_rwmtx_runlock(erts_rwmtx_t *rwmtx); -ERTS_GLB_INLINE int erts_rwmtx_tryrwlock(erts_rwmtx_t *rwmtx); ERTS_GLB_INLINE void erts_rwmtx_rwunlock(erts_rwmtx_t *rwmtx); ERTS_GLB_INLINE int erts_lc_rwmtx_is_rlocked(erts_rwmtx_t *mtx); ERTS_GLB_INLINE int erts_lc_rwmtx_is_rwlocked(erts_rwmtx_t *mtx); @@ -522,6 +544,9 @@ ERTS_GLB_INLINE erts_aint_t erts_no_atomic_xchg(erts_no_atomic_t *xchgp, ERTS_GLB_INLINE erts_aint_t erts_no_atomic_cmpxchg(erts_no_atomic_t *xchgp, erts_aint_t new, erts_aint_t expected); +ERTS_GLB_INLINE erts_aint_t erts_no_atomic_read_bset(erts_no_atomic_t *var, + erts_aint_t mask, + erts_aint_t set); ERTS_GLB_INLINE void erts_no_atomic32_set(erts_no_atomic32_t *var, erts_aint32_t i); ERTS_GLB_INLINE erts_aint32_t erts_no_atomic32_read(erts_no_atomic32_t *var); @@ -542,6 +567,9 @@ ERTS_GLB_INLINE erts_aint32_t erts_no_atomic32_xchg(erts_no_atomic32_t *xchgp, ERTS_GLB_INLINE erts_aint32_t erts_no_atomic32_cmpxchg(erts_no_atomic32_t *xchgp, erts_aint32_t new, erts_aint32_t expected); +ERTS_GLB_INLINE erts_aint32_t erts_no_atomic32_read_bset(erts_no_atomic32_t *var, + erts_aint32_t mask, + erts_aint32_t set); ERTS_GLB_INLINE void erts_spinlock_init_x_opt(erts_spinlock_t *lock, char *name, @@ -554,7 +582,7 @@ ERTS_GLB_INLINE void erts_spinlock_init(erts_spinlock_t *lock, char *name); ERTS_GLB_INLINE void erts_spinlock_destroy(erts_spinlock_t *lock); ERTS_GLB_INLINE void erts_spin_unlock(erts_spinlock_t *lock); -#ifdef ERTS_ENABLE_LOCK_COUNT +#ifdef ERTS_ENABLE_LOCK_POSITION ERTS_GLB_INLINE void erts_spin_lock_x(erts_spinlock_t *lock, char *file, unsigned int line); #else ERTS_GLB_INLINE void erts_spin_lock(erts_spinlock_t *lock); @@ -567,7 +595,7 @@ ERTS_GLB_INLINE void erts_rwlock_init(erts_rwlock_t *lock, char *name); ERTS_GLB_INLINE void erts_rwlock_destroy(erts_rwlock_t *lock); ERTS_GLB_INLINE void erts_read_unlock(erts_rwlock_t *lock); -#ifdef ERTS_ENABLE_LOCK_COUNT +#ifdef ERTS_ENABLE_LOCK_POSITION ERTS_GLB_INLINE void erts_read_lock_x(erts_rwlock_t *lock, char *file, unsigned int line); ERTS_GLB_INLINE void erts_write_lock_x(erts_rwlock_t *lock, char *file, unsigned int line); #else @@ -577,7 +605,7 @@ ERTS_GLB_INLINE void erts_write_lock(erts_rwlock_t *lock); ERTS_GLB_INLINE void erts_write_unlock(erts_rwlock_t *lock); ERTS_GLB_INLINE int erts_lc_rwlock_is_rlocked(erts_rwlock_t *lock); ERTS_GLB_INLINE int erts_lc_rwlock_is_rwlocked(erts_rwlock_t *lock); -ERTS_GLB_INLINE void erts_tsd_key_create(erts_tsd_key_t *keyp); +ERTS_GLB_INLINE void erts_tsd_key_create(erts_tsd_key_t *keyp, char *keyname); ERTS_GLB_INLINE void erts_tsd_key_delete(erts_tsd_key_t key); ERTS_GLB_INLINE void erts_tsd_set(erts_tsd_key_t key, void *value); ERTS_GLB_INLINE void * erts_tsd_get(erts_tsd_key_t key); @@ -601,6 +629,91 @@ ERTS_GLB_INLINE void erts_thr_sigwait(const sigset_t *set, int *sig); #ifdef USE_THREADS +ERTS_GLB_INLINE erts_aint_t +erts_atomic_read_bset_nob(erts_atomic_t *var, + erts_aint_t mask, + erts_aint_t set); +ERTS_GLB_INLINE erts_aint_t +erts_atomic_read_bset_ddrb(erts_atomic_t *var, + erts_aint_t mask, + erts_aint_t set); +ERTS_GLB_INLINE erts_aint_t +erts_atomic_read_bset_rb(erts_atomic_t *var, + erts_aint_t mask, + erts_aint_t set); +ERTS_GLB_INLINE erts_aint_t +erts_atomic_read_bset_wb(erts_atomic_t *var, + erts_aint_t mask, + erts_aint_t set); +ERTS_GLB_INLINE erts_aint_t +erts_atomic_read_bset_acqb(erts_atomic_t *var, + erts_aint_t mask, + erts_aint_t set); +ERTS_GLB_INLINE erts_aint_t +erts_atomic_read_bset_relb(erts_atomic_t *var, + erts_aint_t mask, + erts_aint_t set); +ERTS_GLB_INLINE erts_aint_t +erts_atomic_read_bset_mb(erts_atomic_t *var, + erts_aint_t mask, + erts_aint_t set); +ERTS_GLB_INLINE erts_aint32_t +erts_atomic32_read_bset_nob(erts_atomic32_t *var, + erts_aint32_t mask, + erts_aint32_t set); +ERTS_GLB_INLINE erts_aint32_t +erts_atomic32_read_bset_ddrb(erts_atomic32_t *var, + erts_aint32_t mask, + erts_aint32_t set); +ERTS_GLB_INLINE erts_aint32_t +erts_atomic32_read_bset_rb(erts_atomic32_t *var, + erts_aint32_t mask, + erts_aint32_t set); +ERTS_GLB_INLINE erts_aint32_t +erts_atomic32_read_bset_wb(erts_atomic32_t *var, + erts_aint32_t mask, + erts_aint32_t set); +ERTS_GLB_INLINE erts_aint32_t +erts_atomic32_read_bset_acqb(erts_atomic32_t *var, + erts_aint32_t mask, + erts_aint32_t set); +ERTS_GLB_INLINE erts_aint32_t +erts_atomic32_read_bset_relb(erts_atomic32_t *var, + erts_aint32_t mask, + erts_aint32_t set); +ERTS_GLB_INLINE erts_aint32_t +erts_atomic32_read_bset_mb(erts_atomic32_t *var, + erts_aint32_t mask, + erts_aint32_t set); + +#if ERTS_GLB_INLINE_INCL_FUNC_DEF +#define ERTS_ATOMIC_BSET_IMPL__(Type, ReadOp, CmpxchgOp, VarP, Mask, Set) \ +do { \ + Type act = ReadOp((VarP)); \ + while (1) { \ + Type exp = act; \ + Type new = exp & ~(Mask); \ + new |= ((Mask) & (Set)); \ + act = CmpxchgOp((VarP), new, exp); \ + if (act == exp) \ + return act; \ + } \ +} while (0) +#endif + +ERTS_GLB_INLINE void +erts_dw_atomic_set_dirty(erts_dw_atomic_t *var, erts_dw_aint_t *val); +ERTS_GLB_INLINE void +erts_dw_atomic_read_dirty(erts_dw_atomic_t *var, erts_dw_aint_t *val); +ERTS_GLB_INLINE void +erts_atomic_set_dirty(erts_atomic_t *var, erts_aint_t val); +ERTS_GLB_INLINE erts_aint_t +erts_atomic_read_dirty(erts_atomic_t *var); +ERTS_GLB_INLINE void +erts_atomic32_set_dirty(erts_atomic32_t *var, erts_aint32_t val); +ERTS_GLB_INLINE erts_aint32_t +erts_atomic32_read_dirty(erts_atomic32_t *var); + /* * See "Documentation of atomics and memory barriers" at the top * of this file for info on atomics. @@ -643,6 +756,26 @@ ERTS_GLB_INLINE void erts_thr_sigwait(const sigset_t *set, int *sig); #define erts_dw_atomic_read_wb ethr_dw_atomic_read_wb #define erts_dw_atomic_cmpxchg_wb ethr_dw_atomic_cmpxchg_wb +#if ERTS_GLB_INLINE_INCL_FUNC_DEF + +ERTS_GLB_INLINE void +erts_dw_atomic_set_dirty(erts_dw_atomic_t *var, erts_dw_aint_t *val) +{ + ethr_sint_t *sint = ethr_dw_atomic_addr(var); + sint[0] = val->sint[0]; + sint[1] = val->sint[1]; +} + +ERTS_GLB_INLINE void +erts_dw_atomic_read_dirty(erts_dw_atomic_t *var, erts_dw_aint_t *val) +{ + ethr_sint_t *sint = ethr_dw_atomic_addr(var); + val->sint[0] = sint[0]; + val->sint[1] = sint[1]; +} + +#endif + /* Word size atomics */ #define erts_atomic_init_nob ethr_atomic_init @@ -659,6 +792,19 @@ ERTS_GLB_INLINE void erts_thr_sigwait(const sigset_t *set, int *sig); #define erts_atomic_xchg_nob ethr_atomic_xchg #define erts_atomic_cmpxchg_nob ethr_atomic_cmpxchg +#if ERTS_GLB_INLINE_INCL_FUNC_DEF +ERTS_GLB_INLINE erts_aint_t +erts_atomic_read_bset_nob(erts_atomic_t *var, + erts_aint_t mask, + erts_aint_t set) +{ + ERTS_ATOMIC_BSET_IMPL__(erts_aint_t, + ethr_atomic_read, + ethr_atomic_cmpxchg, + var, mask, set); +} +#endif + #define erts_atomic_init_mb ethr_atomic_init_mb #define erts_atomic_set_mb ethr_atomic_set_mb #define erts_atomic_read_mb ethr_atomic_read_mb @@ -673,6 +819,19 @@ ERTS_GLB_INLINE void erts_thr_sigwait(const sigset_t *set, int *sig); #define erts_atomic_xchg_mb ethr_atomic_xchg_mb #define erts_atomic_cmpxchg_mb ethr_atomic_cmpxchg_mb +#if ERTS_GLB_INLINE_INCL_FUNC_DEF +ERTS_GLB_INLINE erts_aint_t +erts_atomic_read_bset_mb(erts_atomic_t *var, + erts_aint_t mask, + erts_aint_t set) +{ + ERTS_ATOMIC_BSET_IMPL__(erts_aint_t, + ethr_atomic_read, + ethr_atomic_cmpxchg_mb, + var, mask, set); +} +#endif + #define erts_atomic_init_acqb ethr_atomic_init_acqb #define erts_atomic_set_acqb ethr_atomic_set_acqb #define erts_atomic_read_acqb ethr_atomic_read_acqb @@ -687,6 +846,19 @@ ERTS_GLB_INLINE void erts_thr_sigwait(const sigset_t *set, int *sig); #define erts_atomic_xchg_acqb ethr_atomic_xchg_acqb #define erts_atomic_cmpxchg_acqb ethr_atomic_cmpxchg_acqb +#if ERTS_GLB_INLINE_INCL_FUNC_DEF +ERTS_GLB_INLINE erts_aint_t +erts_atomic_read_bset_acqb(erts_atomic_t *var, + erts_aint_t mask, + erts_aint_t set) +{ + ERTS_ATOMIC_BSET_IMPL__(erts_aint_t, + ethr_atomic_read, + ethr_atomic_cmpxchg_acqb, + var, mask, set); +} +#endif + #define erts_atomic_init_relb ethr_atomic_init_relb #define erts_atomic_set_relb ethr_atomic_set_relb #define erts_atomic_read_relb ethr_atomic_read_relb @@ -701,6 +873,19 @@ ERTS_GLB_INLINE void erts_thr_sigwait(const sigset_t *set, int *sig); #define erts_atomic_xchg_relb ethr_atomic_xchg_relb #define erts_atomic_cmpxchg_relb ethr_atomic_cmpxchg_relb +#if ERTS_GLB_INLINE_INCL_FUNC_DEF +ERTS_GLB_INLINE erts_aint_t +erts_atomic_read_bset_relb(erts_atomic_t *var, + erts_aint_t mask, + erts_aint_t set) +{ + ERTS_ATOMIC_BSET_IMPL__(erts_aint_t, + ethr_atomic_read, + ethr_atomic_cmpxchg_relb, + var, mask, set); +} +#endif + #define erts_atomic_init_ddrb ethr_atomic_init_ddrb #define erts_atomic_set_ddrb ethr_atomic_set_ddrb #define erts_atomic_read_ddrb ethr_atomic_read_ddrb @@ -715,6 +900,19 @@ ERTS_GLB_INLINE void erts_thr_sigwait(const sigset_t *set, int *sig); #define erts_atomic_xchg_ddrb ethr_atomic_xchg_ddrb #define erts_atomic_cmpxchg_ddrb ethr_atomic_cmpxchg_ddrb +#if ERTS_GLB_INLINE_INCL_FUNC_DEF +ERTS_GLB_INLINE erts_aint_t +erts_atomic_read_bset_ddrb(erts_atomic_t *var, + erts_aint_t mask, + erts_aint_t set) +{ + ERTS_ATOMIC_BSET_IMPL__(erts_aint_t, + ethr_atomic_read, + ethr_atomic_cmpxchg_ddrb, + var, mask, set); +} +#endif + #define erts_atomic_init_rb ethr_atomic_init_rb #define erts_atomic_set_rb ethr_atomic_set_rb #define erts_atomic_read_rb ethr_atomic_read_rb @@ -729,6 +927,19 @@ ERTS_GLB_INLINE void erts_thr_sigwait(const sigset_t *set, int *sig); #define erts_atomic_xchg_rb ethr_atomic_xchg_rb #define erts_atomic_cmpxchg_rb ethr_atomic_cmpxchg_rb +#if ERTS_GLB_INLINE_INCL_FUNC_DEF +ERTS_GLB_INLINE erts_aint_t +erts_atomic_read_bset_rb(erts_atomic_t *var, + erts_aint_t mask, + erts_aint_t set) +{ + ERTS_ATOMIC_BSET_IMPL__(erts_aint_t, + ethr_atomic_read, + ethr_atomic_cmpxchg_rb, + var, mask, set); +} +#endif + #define erts_atomic_init_wb ethr_atomic_init_wb #define erts_atomic_set_wb ethr_atomic_set_wb #define erts_atomic_read_wb ethr_atomic_read_wb @@ -743,6 +954,39 @@ ERTS_GLB_INLINE void erts_thr_sigwait(const sigset_t *set, int *sig); #define erts_atomic_xchg_wb ethr_atomic_xchg_wb #define erts_atomic_cmpxchg_wb ethr_atomic_cmpxchg_wb +#if ERTS_GLB_INLINE_INCL_FUNC_DEF + +ERTS_GLB_INLINE erts_aint_t +erts_atomic_read_bset_wb(erts_atomic_t *var, + erts_aint_t mask, + erts_aint_t set) +{ + ERTS_ATOMIC_BSET_IMPL__(erts_aint_t, + ethr_atomic_read, + ethr_atomic_cmpxchg_wb, + var, mask, set); +} + +#endif + +#if ERTS_GLB_INLINE_INCL_FUNC_DEF + +ERTS_GLB_INLINE void +erts_atomic_set_dirty(erts_atomic_t *var, erts_aint_t val) +{ + ethr_sint_t *sint = ethr_atomic_addr(var); + *sint = val; +} + +ERTS_GLB_INLINE erts_aint_t +erts_atomic_read_dirty(erts_atomic_t *var) +{ + ethr_sint_t *sint = ethr_atomic_addr(var); + return *sint; +} + +#endif + /* 32-bit atomics */ #define erts_atomic32_init_nob ethr_atomic32_init @@ -759,6 +1003,19 @@ ERTS_GLB_INLINE void erts_thr_sigwait(const sigset_t *set, int *sig); #define erts_atomic32_xchg_nob ethr_atomic32_xchg #define erts_atomic32_cmpxchg_nob ethr_atomic32_cmpxchg +#if ERTS_GLB_INLINE_INCL_FUNC_DEF +ERTS_GLB_INLINE erts_aint32_t +erts_atomic32_read_bset_nob(erts_atomic32_t *var, + erts_aint32_t mask, + erts_aint32_t set) +{ + ERTS_ATOMIC_BSET_IMPL__(erts_aint32_t, + ethr_atomic32_read, + ethr_atomic32_cmpxchg, + var, mask, set); +} +#endif + #define erts_atomic32_init_mb ethr_atomic32_init_mb #define erts_atomic32_set_mb ethr_atomic32_set_mb #define erts_atomic32_read_mb ethr_atomic32_read_mb @@ -773,6 +1030,19 @@ ERTS_GLB_INLINE void erts_thr_sigwait(const sigset_t *set, int *sig); #define erts_atomic32_xchg_mb ethr_atomic32_xchg_mb #define erts_atomic32_cmpxchg_mb ethr_atomic32_cmpxchg_mb +#if ERTS_GLB_INLINE_INCL_FUNC_DEF +ERTS_GLB_INLINE erts_aint32_t +erts_atomic32_read_bset_mb(erts_atomic32_t *var, + erts_aint32_t mask, + erts_aint32_t set) +{ + ERTS_ATOMIC_BSET_IMPL__(erts_aint32_t, + ethr_atomic32_read, + ethr_atomic32_cmpxchg_mb, + var, mask, set); +} +#endif + #define erts_atomic32_init_acqb ethr_atomic32_init_acqb #define erts_atomic32_set_acqb ethr_atomic32_set_acqb #define erts_atomic32_read_acqb ethr_atomic32_read_acqb @@ -787,6 +1057,19 @@ ERTS_GLB_INLINE void erts_thr_sigwait(const sigset_t *set, int *sig); #define erts_atomic32_xchg_acqb ethr_atomic32_xchg_acqb #define erts_atomic32_cmpxchg_acqb ethr_atomic32_cmpxchg_acqb +#if ERTS_GLB_INLINE_INCL_FUNC_DEF +ERTS_GLB_INLINE erts_aint32_t +erts_atomic32_read_bset_acqb(erts_atomic32_t *var, + erts_aint32_t mask, + erts_aint32_t set) +{ + ERTS_ATOMIC_BSET_IMPL__(erts_aint32_t, + ethr_atomic32_read, + ethr_atomic32_cmpxchg_acqb, + var, mask, set); +} +#endif + #define erts_atomic32_init_relb ethr_atomic32_init_relb #define erts_atomic32_set_relb ethr_atomic32_set_relb #define erts_atomic32_read_relb ethr_atomic32_read_relb @@ -801,6 +1084,19 @@ ERTS_GLB_INLINE void erts_thr_sigwait(const sigset_t *set, int *sig); #define erts_atomic32_xchg_relb ethr_atomic32_xchg_relb #define erts_atomic32_cmpxchg_relb ethr_atomic32_cmpxchg_relb +#if ERTS_GLB_INLINE_INCL_FUNC_DEF +ERTS_GLB_INLINE erts_aint32_t +erts_atomic32_read_bset_relb(erts_atomic32_t *var, + erts_aint32_t mask, + erts_aint32_t set) +{ + ERTS_ATOMIC_BSET_IMPL__(erts_aint32_t, + ethr_atomic32_read, + ethr_atomic32_cmpxchg_relb, + var, mask, set); +} +#endif + #define erts_atomic32_init_ddrb ethr_atomic32_init_ddrb #define erts_atomic32_set_ddrb ethr_atomic32_set_ddrb #define erts_atomic32_read_ddrb ethr_atomic32_read_ddrb @@ -815,6 +1111,19 @@ ERTS_GLB_INLINE void erts_thr_sigwait(const sigset_t *set, int *sig); #define erts_atomic32_xchg_ddrb ethr_atomic32_xchg_ddrb #define erts_atomic32_cmpxchg_ddrb ethr_atomic32_cmpxchg_ddrb +#if ERTS_GLB_INLINE_INCL_FUNC_DEF +ERTS_GLB_INLINE erts_aint32_t +erts_atomic32_read_bset_ddrb(erts_atomic32_t *var, + erts_aint32_t mask, + erts_aint32_t set) +{ + ERTS_ATOMIC_BSET_IMPL__(erts_aint32_t, + ethr_atomic32_read, + ethr_atomic32_cmpxchg_ddrb, + var, mask, set); +} +#endif + #define erts_atomic32_init_rb ethr_atomic32_init_rb #define erts_atomic32_set_rb ethr_atomic32_set_rb #define erts_atomic32_read_rb ethr_atomic32_read_rb @@ -829,6 +1138,19 @@ ERTS_GLB_INLINE void erts_thr_sigwait(const sigset_t *set, int *sig); #define erts_atomic32_xchg_rb ethr_atomic32_xchg_rb #define erts_atomic32_cmpxchg_rb ethr_atomic32_cmpxchg_rb +#if ERTS_GLB_INLINE_INCL_FUNC_DEF +ERTS_GLB_INLINE erts_aint32_t +erts_atomic32_read_bset_rb(erts_atomic32_t *var, + erts_aint32_t mask, + erts_aint32_t set) +{ + ERTS_ATOMIC_BSET_IMPL__(erts_aint32_t, + ethr_atomic32_read, + ethr_atomic32_cmpxchg_rb, + var, mask, set); +} +#endif + #define erts_atomic32_init_wb ethr_atomic32_init_wb #define erts_atomic32_set_wb ethr_atomic32_set_wb #define erts_atomic32_read_wb ethr_atomic32_read_wb @@ -843,6 +1165,41 @@ ERTS_GLB_INLINE void erts_thr_sigwait(const sigset_t *set, int *sig); #define erts_atomic32_xchg_wb ethr_atomic32_xchg_wb #define erts_atomic32_cmpxchg_wb ethr_atomic32_cmpxchg_wb +#if ERTS_GLB_INLINE_INCL_FUNC_DEF + +ERTS_GLB_INLINE erts_aint32_t +erts_atomic32_read_bset_wb(erts_atomic32_t *var, + erts_aint32_t mask, + erts_aint32_t set) +{ + ERTS_ATOMIC_BSET_IMPL__(erts_aint32_t, + ethr_atomic32_read, + ethr_atomic32_cmpxchg_wb, + var, mask, set); +} + +#endif + +#undef ERTS_ATOMIC_BSET_IMPL__ + +#if ERTS_GLB_INLINE_INCL_FUNC_DEF + +ERTS_GLB_INLINE void +erts_atomic32_set_dirty(erts_atomic32_t *var, erts_aint32_t val) +{ + ethr_sint32_t *sint = ethr_atomic32_addr(var); + *sint = val; +} + +ERTS_GLB_INLINE erts_aint32_t +erts_atomic32_read_dirty(erts_atomic32_t *var) +{ + ethr_sint32_t *sint = ethr_atomic32_addr(var); + return *sint; +} + +#endif + #else /* !USE_THREADS */ /* Double word size atomics */ @@ -882,6 +1239,9 @@ ERTS_GLB_INLINE void erts_thr_sigwait(const sigset_t *set, int *sig); #define erts_dw_atomic_read_wb erts_no_dw_atomic_read #define erts_dw_atomic_cmpxchg_wb erts_no_dw_atomic_cmpxchg +#define erts_dw_atomic_set_dirty erts_no_dw_atomic_set +#define erts_dw_atomic_read_dirty erts_no_dw_atomic_read + /* Word size atomics */ #define erts_atomic_init_nob erts_no_atomic_set @@ -897,6 +1257,7 @@ ERTS_GLB_INLINE void erts_thr_sigwait(const sigset_t *set, int *sig); #define erts_atomic_read_band_nob erts_no_atomic_read_band #define erts_atomic_xchg_nob erts_no_atomic_xchg #define erts_atomic_cmpxchg_nob erts_no_atomic_cmpxchg +#define erts_atomic_read_bset_nob erts_no_atomic_read_bset #define erts_atomic_init_mb erts_no_atomic_set #define erts_atomic_set_mb erts_no_atomic_set @@ -911,6 +1272,7 @@ ERTS_GLB_INLINE void erts_thr_sigwait(const sigset_t *set, int *sig); #define erts_atomic_read_band_mb erts_no_atomic_read_band #define erts_atomic_xchg_mb erts_no_atomic_xchg #define erts_atomic_cmpxchg_mb erts_no_atomic_cmpxchg +#define erts_atomic_read_bset_mb erts_no_atomic_read_bset #define erts_atomic_init_acqb erts_no_atomic_set #define erts_atomic_set_acqb erts_no_atomic_set @@ -925,6 +1287,7 @@ ERTS_GLB_INLINE void erts_thr_sigwait(const sigset_t *set, int *sig); #define erts_atomic_read_band_acqb erts_no_atomic_read_band #define erts_atomic_xchg_acqb erts_no_atomic_xchg #define erts_atomic_cmpxchg_acqb erts_no_atomic_cmpxchg +#define erts_atomic_read_bset_acqb erts_no_atomic_read_bset #define erts_atomic_init_relb erts_no_atomic_set #define erts_atomic_set_relb erts_no_atomic_set @@ -939,6 +1302,7 @@ ERTS_GLB_INLINE void erts_thr_sigwait(const sigset_t *set, int *sig); #define erts_atomic_read_band_relb erts_no_atomic_read_band #define erts_atomic_xchg_relb erts_no_atomic_xchg #define erts_atomic_cmpxchg_relb erts_no_atomic_cmpxchg +#define erts_atomic_read_bset_relb erts_no_atomic_read_bset #define erts_atomic_init_ddrb erts_no_atomic_set #define erts_atomic_set_ddrb erts_no_atomic_set @@ -953,6 +1317,7 @@ ERTS_GLB_INLINE void erts_thr_sigwait(const sigset_t *set, int *sig); #define erts_atomic_read_band_ddrb erts_no_atomic_read_band #define erts_atomic_xchg_ddrb erts_no_atomic_xchg #define erts_atomic_cmpxchg_ddrb erts_no_atomic_cmpxchg +#define erts_atomic_read_bset_ddrb erts_no_atomic_read_bset #define erts_atomic_init_rb erts_no_atomic_set #define erts_atomic_set_rb erts_no_atomic_set @@ -967,6 +1332,7 @@ ERTS_GLB_INLINE void erts_thr_sigwait(const sigset_t *set, int *sig); #define erts_atomic_read_band_rb erts_no_atomic_read_band #define erts_atomic_xchg_rb erts_no_atomic_xchg #define erts_atomic_cmpxchg_rb erts_no_atomic_cmpxchg +#define erts_atomic_read_bset_rb erts_no_atomic_read_bset #define erts_atomic_init_wb erts_no_atomic_set #define erts_atomic_set_wb erts_no_atomic_set @@ -981,6 +1347,10 @@ ERTS_GLB_INLINE void erts_thr_sigwait(const sigset_t *set, int *sig); #define erts_atomic_read_band_wb erts_no_atomic_read_band #define erts_atomic_xchg_wb erts_no_atomic_xchg #define erts_atomic_cmpxchg_wb erts_no_atomic_cmpxchg +#define erts_atomic_read_bset_wb erts_no_atomic_read_bset + +#define erts_atomic_set_dirty erts_no_atomic_set +#define erts_atomic_read_dirty erts_no_atomic_read /* 32-bit atomics */ @@ -997,6 +1367,7 @@ ERTS_GLB_INLINE void erts_thr_sigwait(const sigset_t *set, int *sig); #define erts_atomic32_read_band_nob erts_no_atomic32_read_band #define erts_atomic32_xchg_nob erts_no_atomic32_xchg #define erts_atomic32_cmpxchg_nob erts_no_atomic32_cmpxchg +#define erts_atomic32_read_bset_nob erts_no_atomic32_read_bset #define erts_atomic32_init_mb erts_no_atomic32_set #define erts_atomic32_set_mb erts_no_atomic32_set @@ -1011,6 +1382,7 @@ ERTS_GLB_INLINE void erts_thr_sigwait(const sigset_t *set, int *sig); #define erts_atomic32_read_band_mb erts_no_atomic32_read_band #define erts_atomic32_xchg_mb erts_no_atomic32_xchg #define erts_atomic32_cmpxchg_mb erts_no_atomic32_cmpxchg +#define erts_atomic32_read_bset_mb erts_no_atomic32_read_bset #define erts_atomic32_init_acqb erts_no_atomic32_set #define erts_atomic32_set_acqb erts_no_atomic32_set @@ -1025,6 +1397,7 @@ ERTS_GLB_INLINE void erts_thr_sigwait(const sigset_t *set, int *sig); #define erts_atomic32_read_band_acqb erts_no_atomic32_read_band #define erts_atomic32_xchg_acqb erts_no_atomic32_xchg #define erts_atomic32_cmpxchg_acqb erts_no_atomic32_cmpxchg +#define erts_atomic32_read_bset_acqb erts_no_atomic32_read_bset #define erts_atomic32_init_relb erts_no_atomic32_set #define erts_atomic32_set_relb erts_no_atomic32_set @@ -1039,6 +1412,7 @@ ERTS_GLB_INLINE void erts_thr_sigwait(const sigset_t *set, int *sig); #define erts_atomic32_read_band_relb erts_no_atomic32_read_band #define erts_atomic32_xchg_relb erts_no_atomic32_xchg #define erts_atomic32_cmpxchg_relb erts_no_atomic32_cmpxchg +#define erts_atomic32_read_bset_relb erts_no_atomic32_read_bset #define erts_atomic32_init_ddrb erts_no_atomic32_set #define erts_atomic32_set_ddrb erts_no_atomic32_set @@ -1053,6 +1427,7 @@ ERTS_GLB_INLINE void erts_thr_sigwait(const sigset_t *set, int *sig); #define erts_atomic32_read_band_ddrb erts_no_atomic32_read_band #define erts_atomic32_xchg_ddrb erts_no_atomic32_xchg #define erts_atomic32_cmpxchg_ddrb erts_no_atomic32_cmpxchg +#define erts_atomic32_read_bset_ddrb erts_no_atomic32_read_bset #define erts_atomic32_init_rb erts_no_atomic32_set #define erts_atomic32_set_rb erts_no_atomic32_set @@ -1067,6 +1442,7 @@ ERTS_GLB_INLINE void erts_thr_sigwait(const sigset_t *set, int *sig); #define erts_atomic32_read_band_rb erts_no_atomic32_read_band #define erts_atomic32_xchg_rb erts_no_atomic32_xchg #define erts_atomic32_cmpxchg_rb erts_no_atomic32_cmpxchg +#define erts_atomic32_read_bset_rb erts_no_atomic32_read_bset #define erts_atomic32_init_wb erts_no_atomic32_set #define erts_atomic32_set_wb erts_no_atomic32_set @@ -1081,6 +1457,10 @@ ERTS_GLB_INLINE void erts_thr_sigwait(const sigset_t *set, int *sig); #define erts_atomic32_read_band_wb erts_no_atomic32_read_band #define erts_atomic32_xchg_wb erts_no_atomic32_xchg #define erts_atomic32_cmpxchg_wb erts_no_atomic32_cmpxchg +#define erts_atomic32_read_bset_wb erts_no_atomic32_read_bset + +#define erts_atomic32_set_dirty erts_no_atomic32_set +#define erts_atomic32_read_dirty erts_no_atomic32_read #endif /* !USE_THREADS */ @@ -1180,7 +1560,7 @@ erts_equal_tids(erts_tid_t x, erts_tid_t y) } ERTS_GLB_INLINE void -erts_mtx_init_x(erts_mtx_t *mtx, char *name, Eterm extra) +erts_mtx_init_x(erts_mtx_t *mtx, char *name, Eterm extra, int enable_lcnt) { #ifdef USE_THREADS int res = ethr_mutex_init(&mtx->mtx); @@ -1190,13 +1570,17 @@ erts_mtx_init_x(erts_mtx_t *mtx, char *name, Eterm extra) erts_lc_init_lock_x(&mtx->lc, name, ERTS_LC_FLG_LT_MUTEX, extra); #endif #ifdef ERTS_ENABLE_LOCK_COUNT - erts_lcnt_init_lock_x(&mtx->lcnt, name, ERTS_LCNT_LT_MUTEX, extra); + if (enable_lcnt) + erts_lcnt_init_lock_x(&mtx->lcnt, name, ERTS_LCNT_LT_MUTEX, extra); + else + erts_lcnt_init_lock_x(&mtx->lcnt, NULL, ERTS_LCNT_LT_MUTEX, extra); #endif #endif } ERTS_GLB_INLINE void -erts_mtx_init_x_opt(erts_mtx_t *mtx, char *name, Eterm extra, Uint16 opt) +erts_mtx_init_x_opt(erts_mtx_t *mtx, char *name, Eterm extra, Uint16 opt, + int enable_lcnt) { #ifdef USE_THREADS int res = ethr_mutex_init(&mtx->mtx); @@ -1206,14 +1590,17 @@ erts_mtx_init_x_opt(erts_mtx_t *mtx, char *name, Eterm extra, Uint16 opt) erts_lc_init_lock_x(&mtx->lc, name, ERTS_LC_FLG_LT_MUTEX, extra); #endif #ifdef ERTS_ENABLE_LOCK_COUNT - erts_lcnt_init_lock_x(&mtx->lcnt, name, ERTS_LCNT_LT_MUTEX | opt, extra); + if (enable_lcnt) + erts_lcnt_init_lock_x(&mtx->lcnt, name, ERTS_LCNT_LT_MUTEX | opt, extra); + else + erts_lcnt_init_lock_x(&mtx->lcnt, NULL, ERTS_LCNT_LT_MUTEX | opt, extra); #endif #endif } ERTS_GLB_INLINE void -erts_mtx_init_locked_x(erts_mtx_t *mtx, char *name, Eterm extra) +erts_mtx_init_locked_x(erts_mtx_t *mtx, char *name, Eterm extra, int enable_lcnt) { #ifdef USE_THREADS int res = ethr_mutex_init(&mtx->mtx); @@ -1223,7 +1610,10 @@ erts_mtx_init_locked_x(erts_mtx_t *mtx, char *name, Eterm extra) erts_lc_init_lock_x(&mtx->lc, name, ERTS_LC_FLG_LT_MUTEX, extra); #endif #ifdef ERTS_ENABLE_LOCK_COUNT - erts_lcnt_init_lock_x(&mtx->lcnt, name, ERTS_LCNT_LT_MUTEX, extra); + if (enable_lcnt) + erts_lcnt_init_lock_x(&mtx->lcnt, name, ERTS_LCNT_LT_MUTEX, extra); + else + erts_lcnt_init_lock_x(&mtx->lcnt, NULL, ERTS_LCNT_LT_MUTEX, extra); #endif ethr_mutex_lock(&mtx->mtx); #ifdef ERTS_ENABLE_LOCK_CHECK @@ -1301,7 +1691,11 @@ erts_mtx_destroy(erts_mtx_t *mtx) } ERTS_GLB_INLINE int +#ifdef ERTS_ENABLE_LOCK_POSITION +erts_mtx_trylock_x(erts_mtx_t *mtx, char *file, unsigned int line) +#else erts_mtx_trylock(erts_mtx_t *mtx) +#endif { #ifdef USE_THREADS int res; @@ -1315,8 +1709,12 @@ erts_mtx_trylock(erts_mtx_t *mtx) res = ethr_mutex_trylock(&mtx->mtx); #ifdef ERTS_ENABLE_LOCK_CHECK +#ifdef ERTS_ENABLE_LOCK_POSITION + erts_lc_trylock_x(res == 0, &mtx->lc,file,line); +#else erts_lc_trylock(res == 0, &mtx->lc); #endif +#endif #ifdef ERTS_ENABLE_LOCK_COUNT erts_lcnt_trylock(&mtx->lcnt, res); #endif @@ -1328,7 +1726,7 @@ erts_mtx_trylock(erts_mtx_t *mtx) } ERTS_GLB_INLINE void -#ifdef ERTS_ENABLE_LOCK_COUNT +#ifdef ERTS_ENABLE_LOCK_POSITION erts_mtx_lock_x(erts_mtx_t *mtx, char *file, unsigned int line) #else erts_mtx_lock(erts_mtx_t *mtx) @@ -1336,8 +1734,12 @@ erts_mtx_lock(erts_mtx_t *mtx) { #ifdef USE_THREADS #ifdef ERTS_ENABLE_LOCK_CHECK +#ifdef ERTS_ENABLE_LOCK_POSITION + erts_lc_lock_x(&mtx->lc, file, line); +#else erts_lc_lock(&mtx->lc); #endif +#endif #ifdef ERTS_ENABLE_LOCK_COUNT erts_lcnt_lock(&mtx->lcnt); #endif @@ -1488,7 +1890,10 @@ erts_rwmtx_init_opt_x(erts_rwmtx_t *rwmtx, erts_lc_init_lock_x(&rwmtx->lc, name, ERTS_LC_FLG_LT_RWMUTEX, extra); #endif #ifdef ERTS_ENABLE_LOCK_COUNT - erts_lcnt_init_lock_x(&rwmtx->lcnt, name, ERTS_LCNT_LT_RWMUTEX, extra); + if (name && name[0] == '\0') + erts_lcnt_init_lock_x(&rwmtx->lcnt, NULL, ERTS_LCNT_LT_RWMUTEX, extra); + else + erts_lcnt_init_lock_x(&rwmtx->lcnt, name, ERTS_LCNT_LT_RWMUTEX, extra); #endif #endif } @@ -1552,7 +1957,11 @@ erts_rwmtx_destroy(erts_rwmtx_t *rwmtx) } ERTS_GLB_INLINE int +#ifdef ERTS_ENABLE_LOCK_POSITION +erts_rwmtx_tryrlock_x(erts_rwmtx_t *rwmtx, char *file, unsigned int line) +#else erts_rwmtx_tryrlock(erts_rwmtx_t *rwmtx) +#endif { #ifdef USE_THREADS int res; @@ -1566,8 +1975,12 @@ erts_rwmtx_tryrlock(erts_rwmtx_t *rwmtx) res = ethr_rwmutex_tryrlock(&rwmtx->rwmtx); #ifdef ERTS_ENABLE_LOCK_CHECK +#ifdef ERTS_ENABLE_LOCK_POSITION + erts_lc_trylock_flg_x(res == 0, &rwmtx->lc, ERTS_LC_FLG_LO_READ,file,line); +#else erts_lc_trylock_flg(res == 0, &rwmtx->lc, ERTS_LC_FLG_LO_READ); #endif +#endif #ifdef ERTS_ENABLE_LOCK_COUNT erts_lcnt_trylock_opt(&rwmtx->lcnt, res, ERTS_LCNT_LO_READ); #endif @@ -1579,7 +1992,7 @@ erts_rwmtx_tryrlock(erts_rwmtx_t *rwmtx) } ERTS_GLB_INLINE void -#ifdef ERTS_ENABLE_LOCK_COUNT +#ifdef ERTS_ENABLE_LOCK_POSITION erts_rwmtx_rlock_x(erts_rwmtx_t *rwmtx, char *file, unsigned int line) #else erts_rwmtx_rlock(erts_rwmtx_t *rwmtx) @@ -1587,8 +2000,12 @@ erts_rwmtx_rlock(erts_rwmtx_t *rwmtx) { #ifdef USE_THREADS #ifdef ERTS_ENABLE_LOCK_CHECK +#ifdef ERTS_ENABLE_LOCK_POSITION + erts_lc_lock_flg_x(&rwmtx->lc, ERTS_LC_FLG_LO_READ,file,line); +#else erts_lc_lock_flg(&rwmtx->lc, ERTS_LC_FLG_LO_READ); #endif +#endif #ifdef ERTS_ENABLE_LOCK_COUNT erts_lcnt_lock_opt(&rwmtx->lcnt, ERTS_LCNT_LO_READ); #endif @@ -1615,7 +2032,11 @@ erts_rwmtx_runlock(erts_rwmtx_t *rwmtx) ERTS_GLB_INLINE int +#ifdef ERTS_ENABLE_LOCK_POSITION +erts_rwmtx_tryrwlock_x(erts_rwmtx_t *rwmtx, char *file, unsigned int line) +#else erts_rwmtx_tryrwlock(erts_rwmtx_t *rwmtx) +#endif { #ifdef USE_THREADS int res; @@ -1629,8 +2050,12 @@ erts_rwmtx_tryrwlock(erts_rwmtx_t *rwmtx) res = ethr_rwmutex_tryrwlock(&rwmtx->rwmtx); #ifdef ERTS_ENABLE_LOCK_CHECK +#ifdef ERTS_ENABLE_LOCK_POSITION + erts_lc_trylock_flg_x(res == 0, &rwmtx->lc, ERTS_LC_FLG_LO_READ_WRITE,file,line); +#else erts_lc_trylock_flg(res == 0, &rwmtx->lc, ERTS_LC_FLG_LO_READ_WRITE); #endif +#endif #ifdef ERTS_ENABLE_LOCK_COUNT erts_lcnt_trylock_opt(&rwmtx->lcnt, res, ERTS_LCNT_LO_READ_WRITE); #endif @@ -1642,7 +2067,7 @@ erts_rwmtx_tryrwlock(erts_rwmtx_t *rwmtx) } ERTS_GLB_INLINE void -#ifdef ERTS_ENABLE_LOCK_COUNT +#ifdef ERTS_ENABLE_LOCK_POSITION erts_rwmtx_rwlock_x(erts_rwmtx_t *rwmtx, char *file, unsigned int line) #else erts_rwmtx_rwlock(erts_rwmtx_t *rwmtx) @@ -1650,8 +2075,12 @@ erts_rwmtx_rwlock(erts_rwmtx_t *rwmtx) { #ifdef USE_THREADS #ifdef ERTS_ENABLE_LOCK_CHECK +#ifdef ERTS_ENABLE_LOCK_POSITION + erts_lc_lock_flg_x(&rwmtx->lc, ERTS_LC_FLG_LO_READ_WRITE,file,line); +#else erts_lc_lock_flg(&rwmtx->lc, ERTS_LC_FLG_LO_READ_WRITE); #endif +#endif #ifdef ERTS_ENABLE_LOCK_COUNT erts_lcnt_lock_opt(&rwmtx->lcnt, ERTS_LCNT_LO_READ_WRITE); #endif @@ -1845,6 +2274,17 @@ erts_no_atomic_cmpxchg(erts_no_atomic_t *xchgp, return old; } +ERTS_GLB_INLINE erts_aint_t +erts_no_atomic_read_bset(erts_no_atomic_t *var, + erts_aint_t mask, + erts_aint_t set) +{ + erts_aint_t old = *var; + *var &= ~mask; + *var |= (mask & set); + return old; +} + /* atomic32 */ ERTS_GLB_INLINE void @@ -1932,6 +2372,17 @@ erts_no_atomic32_cmpxchg(erts_no_atomic32_t *xchgp, return old; } +ERTS_GLB_INLINE erts_aint32_t +erts_no_atomic32_read_bset(erts_no_atomic32_t *var, + erts_aint32_t mask, + erts_aint32_t set) +{ + erts_aint32_t old = *var; + *var &= ~mask; + *var |= (mask & set); + return old; +} + /* spinlock */ ERTS_GLB_INLINE void @@ -2035,7 +2486,7 @@ erts_spin_unlock(erts_spinlock_t *lock) } ERTS_GLB_INLINE void -#ifdef ERTS_ENABLE_LOCK_COUNT +#ifdef ERTS_ENABLE_LOCK_POSITION erts_spin_lock_x(erts_spinlock_t *lock, char *file, unsigned int line) #else erts_spin_lock(erts_spinlock_t *lock) @@ -2043,8 +2494,12 @@ erts_spin_lock(erts_spinlock_t *lock) { #ifdef USE_THREADS #ifdef ERTS_ENABLE_LOCK_CHECK +#ifdef ERTS_ENABLE_LOCK_POSITION + erts_lc_lock_x(&lock->lc,file,line); +#else erts_lc_lock(&lock->lc); #endif +#endif #ifdef ERTS_ENABLE_LOCK_COUNT erts_lcnt_lock(&lock->lcnt); #endif @@ -2154,7 +2609,7 @@ erts_read_unlock(erts_rwlock_t *lock) } ERTS_GLB_INLINE void -#ifdef ERTS_ENABLE_LOCK_COUNT +#ifdef ERTS_ENABLE_LOCK_POSITION erts_read_lock_x(erts_rwlock_t *lock, char *file, unsigned int line) #else erts_read_lock(erts_rwlock_t *lock) @@ -2162,8 +2617,12 @@ erts_read_lock(erts_rwlock_t *lock) { #ifdef USE_THREADS #ifdef ERTS_ENABLE_LOCK_CHECK +#ifdef ERTS_ENABLE_LOCK_POSITION + erts_lc_lock_flg_x(&lock->lc, ERTS_LC_FLG_LO_READ,file,line); +#else erts_lc_lock_flg(&lock->lc, ERTS_LC_FLG_LO_READ); #endif +#endif #ifdef ERTS_ENABLE_LOCK_COUNT erts_lcnt_lock_opt(&lock->lcnt, ERTS_LCNT_LO_READ); #endif @@ -2193,7 +2652,7 @@ erts_write_unlock(erts_rwlock_t *lock) } ERTS_GLB_INLINE void -#ifdef ERTS_ENABLE_LOCK_COUNT +#ifdef ERTS_ENABLE_LOCK_POSITION erts_write_lock_x(erts_rwlock_t *lock, char *file, unsigned int line) #else erts_write_lock(erts_rwlock_t *lock) @@ -2201,8 +2660,12 @@ erts_write_lock(erts_rwlock_t *lock) { #ifdef USE_THREADS #ifdef ERTS_ENABLE_LOCK_CHECK +#ifdef ERTS_ENABLE_LOCK_POSITION + erts_lc_lock_flg_x(&lock->lc, ERTS_LC_FLG_LO_READ_WRITE,file,line); +#else erts_lc_lock_flg(&lock->lc, ERTS_LC_FLG_LO_READ_WRITE); #endif +#endif #ifdef ERTS_ENABLE_LOCK_COUNT erts_lcnt_lock_opt(&lock->lcnt, ERTS_LCNT_LO_READ_WRITE); #endif @@ -2244,10 +2707,10 @@ erts_lc_rwlock_is_rwlocked(erts_rwlock_t *lock) } ERTS_GLB_INLINE void -erts_tsd_key_create(erts_tsd_key_t *keyp) +erts_tsd_key_create(erts_tsd_key_t *keyp, char *keyname) { #ifdef USE_THREADS - int res = ethr_tsd_key_create(keyp); + int res = ethr_tsd_key_create(keyp, keyname); if (res) erts_thr_fatal_error(res, "create thread specific data key"); #endif diff --git a/erts/emulator/beam/erl_time.h b/erts/emulator/beam/erl_time.h index 6c6e193818..4bbdcaa3e3 100644 --- a/erts/emulator/beam/erl_time.h +++ b/erts/emulator/beam/erl_time.h @@ -118,9 +118,11 @@ ERTS_GLB_INLINE void erts_do_time_add(erts_short_time_t elapsed) void erts_get_now_cpu(Uint* megasec, Uint* sec, Uint* microsec); #endif +typedef UWord erts_approx_time_t; +erts_approx_time_t erts_get_approx_time(void); + void erts_get_timeval(SysTimeval *tv); erts_time_t erts_get_time(void); -void erts_get_emu_time(SysTimeval *); ERTS_GLB_INLINE int erts_cmp_timeval(SysTimeval *t1p, SysTimeval *t2p); diff --git a/erts/emulator/beam/erl_time_sup.c b/erts/emulator/beam/erl_time_sup.c index 04147408d5..3272a5326d 100644 --- a/erts/emulator/beam/erl_time_sup.c +++ b/erts/emulator/beam/erl_time_sup.c @@ -91,6 +91,41 @@ static SysTimeval then; /* Used in get_now */ static SysTimeval last_emu_time; /* Used in erts_get_emu_time() */ SysTimeval erts_first_emu_time; /* Used in erts_get_emu_time() */ +union { + erts_smp_atomic_t time; + char align[ERTS_CACHE_LINE_SIZE]; +} approx erts_align_attribute(ERTS_CACHE_LINE_SIZE); + +static void +init_approx_time(void) +{ + erts_smp_atomic_init_nob(&approx.time, 0); +} + +static ERTS_INLINE erts_approx_time_t +get_approx_time(void) +{ + return (erts_approx_time_t) erts_smp_atomic_read_nob(&approx.time); +} + +static ERTS_INLINE void +update_approx_time(SysTimeval *tv) +{ + erts_approx_time_t new_secs = (erts_approx_time_t) tv->tv_sec; + erts_approx_time_t old_secs = get_approx_time(); + if (old_secs != new_secs) + erts_smp_atomic_set_nob(&approx.time, new_secs); +} + +/* + * erts_get_approx_time() returns an *approximate* time + * in seconds. NOTE that this time may jump backwards!!! + */ +erts_approx_time_t +erts_get_approx_time(void) +{ + return get_approx_time(); +} #ifdef HAVE_GETHRTIME @@ -398,6 +433,8 @@ erts_init_time_sup(void) { erts_smp_mtx_init(&erts_timeofday_mtx, "timeofday"); + init_approx_time(); + last_emu_time.tv_sec = 0; last_emu_time.tv_usec = 0; @@ -417,7 +454,7 @@ erts_init_time_sup(void) gtv = inittv; then.tv_sec = then.tv_usec = 0; - erts_get_emu_time(&erts_first_emu_time); + erts_deliver_time(); return CLOCK_RESOLUTION; } @@ -883,6 +920,8 @@ get_now(Uint* megasec, Uint* sec, Uint* microsec) *megasec = (Uint) (now.tv_sec / 1000000); *sec = (Uint) (now.tv_sec % 1000000); *microsec = (Uint) (now.tv_usec); + + update_approx_time(&now); } void @@ -895,6 +934,8 @@ get_sys_now(Uint* megasec, Uint* sec, Uint* microsec) *megasec = (Uint) (now.tv_sec / 1000000); *sec = (Uint) (now.tv_sec % 1000000); *microsec = (Uint) (now.tv_usec); + + update_approx_time(&now); } @@ -911,6 +952,8 @@ void erts_deliver_time(void) { do_erts_deliver_time(&now); erts_smp_mtx_unlock(&erts_timeofday_mtx); + + update_approx_time(&now); } /* get *real* time (not ticks) remaining until next timeout - if there @@ -959,6 +1002,7 @@ void erts_get_timeval(SysTimeval *tv) erts_smp_mtx_lock(&erts_timeofday_mtx); get_tolerant_timeofday(tv); erts_smp_mtx_unlock(&erts_timeofday_mtx); + update_approx_time(tv); } erts_time_t @@ -971,7 +1015,9 @@ erts_get_time(void) get_tolerant_timeofday(&sys_tv); erts_smp_mtx_unlock(&erts_timeofday_mtx); - + + update_approx_time(&sys_tv); + return sys_tv.tv_sec; } @@ -987,38 +1033,3 @@ void erts_get_now_cpu(Uint* megasec, Uint* sec, Uint* microsec) { *sec = (Uint)(tp.tv_sec % 1000000); } #endif - - -/* - * erts_get_emu_time() is similar to get_now(). You will - * always get different times from erts_get_emu_time(), but they - * may equal a time from get_now(). - * - * erts_get_emu_time() is only used internally in the emulator in - * order to order emulator internal events. - */ - -void -erts_get_emu_time(SysTimeval *this_emu_time_p) -{ - erts_smp_mtx_lock(&erts_timeofday_mtx); - - get_tolerant_timeofday(this_emu_time_p); - - /* Make sure time is later than last */ - if (last_emu_time.tv_sec > this_emu_time_p->tv_sec || - (last_emu_time.tv_sec == this_emu_time_p->tv_sec - && last_emu_time.tv_usec >= this_emu_time_p->tv_usec)) { - *this_emu_time_p = last_emu_time; - this_emu_time_p->tv_usec++; - } - /* Check for carry from above + general reasonability */ - if (this_emu_time_p->tv_usec >= 1000000) { - this_emu_time_p->tv_usec = 0; - this_emu_time_p->tv_sec++; - } - - last_emu_time = *this_emu_time_p; - - erts_smp_mtx_unlock(&erts_timeofday_mtx); -} diff --git a/erts/emulator/beam/erl_trace.c b/erts/emulator/beam/erl_trace.c index 009ca1eb52..ea5c850a30 100644 --- a/erts/emulator/beam/erl_trace.c +++ b/erts/emulator/beam/erl_trace.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 1999-2012. All Rights Reserved. + * Copyright Ericsson AB 1999-2014. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -44,9 +44,9 @@ #undef DEBUG_PRINTOUTS #endif -extern Eterm beam_return_to_trace[1]; /* OpCode(i_return_to_trace) */ -extern Eterm beam_return_trace[1]; /* OpCode(i_return_trace) */ -extern Eterm beam_return_time_trace[1]; /* OpCode(i_return_time_trace) */ +extern BeamInstr beam_return_to_trace[1]; /* OpCode(i_return_to_trace) */ +extern BeamInstr beam_return_trace[1]; /* OpCode(i_return_trace) */ +extern BeamInstr beam_return_time_trace[1]; /* OpCode(i_return_time_trace) */ /* Pseudo export entries. Never filled in with data, only used to yield unique pointers of the correct type. */ @@ -64,7 +64,7 @@ int erts_cpu_timestamp; #endif static erts_smp_mtx_t smq_mtx; -static erts_smp_mtx_t sys_trace_mtx; +static erts_smp_rwmtx_t sys_trace_rwmtx; enum ErtsSysMsgType { SYS_MSG_TYPE_UNDEFINED, @@ -91,7 +91,12 @@ static void init_sys_msg_dispatcher(void); #endif void erts_init_trace(void) { - erts_smp_mtx_init(&sys_trace_mtx, "sys_tracers"); + erts_smp_rwmtx_opt_t rwmtx_opts = ERTS_SMP_RWMTX_OPT_DEFAULT_INITER; + rwmtx_opts.type = ERTS_SMP_RWMTX_TYPE_EXTREMELY_FREQUENT_READ; + rwmtx_opts.lived = ERTS_SMP_RWMTX_LONG_LIVED; + + erts_smp_rwmtx_init_opt(&sys_trace_rwmtx, &rwmtx_opts, "sys_tracers"); + #ifdef HAVE_ERTS_NOW_CPU erts_cpu_timestamp = 0; #endif @@ -146,18 +151,37 @@ do { \ message dispatcher thread takes care of that). */ #define ERTS_GET_TRACER_REF(RES, TPID, TRACEE_FLGS) \ do { (RES) = (TPID); } while(0) +int +erts_is_tracer_proc_valid(Process* p) +{ + return 1; +} #else #define ERTS_NULL_TRACER_REF NULL #define ERTS_TRACER_REF_TYPE Process * #define ERTS_GET_TRACER_REF(RES, TPID, TRACEE_FLGS) \ do { \ - (RES) = process_tab[internal_pid_index((TPID))]; \ - if (INVALID_PID((RES), (TPID)) || !((RES)->trace_flags & F_TRACER)) { \ + (RES) = erts_proc_lookup((TPID)); \ + if (!(RES) || !(ERTS_TRACE_FLAGS((RES)) & F_TRACER)) { \ (TPID) = NIL; \ (TRACEE_FLGS) &= ~TRACEE_FLAGS; \ return; \ } \ } while (0) +int +erts_is_tracer_proc_valid(Process* p) +{ + Process* tracer; + + tracer = erts_proc_lookup(ERTS_TRACER_PROC(p)); + if (tracer && ERTS_TRACE_FLAGS(tracer) & F_TRACER) { + return 1; + } else { + ERTS_TRACER_PROC(p) = NIL; + ERTS_TRACE_FLAGS(p) = ~TRACEE_FLAGS; + return 0; + } +} #endif static Uint active_sched; @@ -169,10 +193,10 @@ erts_system_profile_setup_active_schedulers(void) active_sched = erts_active_schedulers(); } -void -erts_trace_check_exiting(Eterm exiting) +static void +exiting_reset(Eterm exiting) { - erts_smp_mtx_lock(&sys_trace_mtx); + erts_smp_rwmtx_rwlock(&sys_trace_rwmtx); if (exiting == default_tracer) { default_tracer = NIL; default_trace_flags &= TRACEE_FLAGS; @@ -202,29 +226,49 @@ erts_trace_check_exiting(Eterm exiting) erts_system_profile_clear(NULL); #endif } - erts_smp_mtx_unlock(&sys_trace_mtx); + erts_smp_rwmtx_rwunlock(&sys_trace_rwmtx); +} + +void +erts_trace_check_exiting(Eterm exiting) +{ + int reset = 0; + erts_smp_rwmtx_rlock(&sys_trace_rwmtx); + if (exiting == default_tracer) + reset = 1; + else if (exiting == system_seq_tracer) + reset = 1; + else if (exiting == system_monitor) + reset = 1; + else if (exiting == system_profile) + reset = 1; + erts_smp_rwmtx_runlock(&sys_trace_rwmtx); + if (reset) + exiting_reset(exiting); +} + +static ERTS_INLINE int +is_valid_tracer(Eterm tracer) +{ + return erts_proc_lookup(tracer) || erts_is_valid_tracer_port(tracer); } Eterm erts_set_system_seq_tracer(Process *c_p, ErtsProcLocks c_p_locks, Eterm new) { - Eterm old = THE_NON_VALUE; + Eterm old; - if (new != am_false) { - if (!erts_pid2proc(c_p, c_p_locks, new, 0) - && !erts_is_valid_tracer_port(new)) { - return old; - } - } + if (new != am_false && !is_valid_tracer(new)) + return THE_NON_VALUE; - erts_smp_mtx_lock(&sys_trace_mtx); + erts_smp_rwmtx_rwlock(&sys_trace_rwmtx); old = system_seq_tracer; system_seq_tracer = new; #ifdef DEBUG_PRINTOUTS erts_fprintf(stderr, "set seq tracer new=%T old=%T\n", new, old); #endif - erts_smp_mtx_unlock(&sys_trace_mtx); + erts_smp_rwmtx_rwunlock(&sys_trace_rwmtx); return old; } @@ -232,12 +276,12 @@ Eterm erts_get_system_seq_tracer(void) { Eterm st; - erts_smp_mtx_lock(&sys_trace_mtx); + erts_smp_rwmtx_rlock(&sys_trace_rwmtx); st = system_seq_tracer; #ifdef DEBUG_PRINTOUTS erts_fprintf(stderr, "get seq tracer %T\n", st); #endif - erts_smp_mtx_unlock(&sys_trace_mtx); + erts_smp_rwmtx_runlock(&sys_trace_rwmtx); return st; } @@ -250,7 +294,7 @@ get_default_tracing(Uint *flagsp, Eterm *tracerp) if (is_nil(default_tracer)) { default_trace_flags &= ~TRACEE_FLAGS; } else if (is_internal_pid(default_tracer)) { - if (!erts_pid2proc(NULL, 0, default_tracer, 0)) { + if (!erts_proc_lookup(default_tracer)) { reset_tracer: default_trace_flags &= ~TRACEE_FLAGS; default_tracer = NIL; @@ -270,7 +314,7 @@ get_default_tracing(Uint *flagsp, Eterm *tracerp) void erts_change_default_tracing(int setflags, Uint *flagsp, Eterm *tracerp) { - erts_smp_mtx_lock(&sys_trace_mtx); + erts_smp_rwmtx_rwlock(&sys_trace_rwmtx); if (flagsp) { if (setflags) default_trace_flags |= *flagsp; @@ -280,48 +324,48 @@ erts_change_default_tracing(int setflags, Uint *flagsp, Eterm *tracerp) if (tracerp) default_tracer = *tracerp; get_default_tracing(flagsp, tracerp); - erts_smp_mtx_unlock(&sys_trace_mtx); + erts_smp_rwmtx_rwunlock(&sys_trace_rwmtx); } void erts_get_default_tracing(Uint *flagsp, Eterm *tracerp) { - erts_smp_mtx_lock(&sys_trace_mtx); + erts_smp_rwmtx_rlock(&sys_trace_rwmtx); get_default_tracing(flagsp, tracerp); - erts_smp_mtx_unlock(&sys_trace_mtx); + erts_smp_rwmtx_runlock(&sys_trace_rwmtx); } void erts_set_system_monitor(Eterm monitor) { - erts_smp_mtx_lock(&sys_trace_mtx); + erts_smp_rwmtx_rwlock(&sys_trace_rwmtx); system_monitor = monitor; - erts_smp_mtx_unlock(&sys_trace_mtx); + erts_smp_rwmtx_rwunlock(&sys_trace_rwmtx); } Eterm erts_get_system_monitor(void) { Eterm monitor; - erts_smp_mtx_lock(&sys_trace_mtx); + erts_smp_rwmtx_rlock(&sys_trace_rwmtx); monitor = system_monitor; - erts_smp_mtx_unlock(&sys_trace_mtx); + erts_smp_rwmtx_runlock(&sys_trace_rwmtx); return monitor; } /* Performance monitoring */ void erts_set_system_profile(Eterm profile) { - erts_smp_mtx_lock(&sys_trace_mtx); + erts_smp_rwmtx_rwlock(&sys_trace_rwmtx); system_profile = profile; - erts_smp_mtx_unlock(&sys_trace_mtx); + erts_smp_rwmtx_rwunlock(&sys_trace_rwmtx); } Eterm erts_get_system_profile(void) { Eterm profile; - erts_smp_mtx_lock(&sys_trace_mtx); + erts_smp_rwmtx_rlock(&sys_trace_rwmtx); profile = system_profile; - erts_smp_mtx_unlock(&sys_trace_mtx); + erts_smp_rwmtx_runlock(&sys_trace_rwmtx); return profile; } @@ -384,13 +428,9 @@ WRITE_SYS_MSG_TO_PORT(Eterm unused_to, } #ifndef ERTS_SMP - if (!INVALID_TRACER_PORT(trace_port, trace_port->id)) { + if (!INVALID_TRACER_PORT(trace_port, trace_port->common.id)) #endif erts_raw_port_command(trace_port, buffer, ptr-buffer); -#ifndef ERTS_SMP - erts_port_release(trace_port); - } -#endif erts_free(ERTS_ALC_T_TMP, (void *) buffer); } @@ -420,7 +460,7 @@ do_send_schedfix_to_port(Port *trace_port, Eterm pid, Eterm timestamp) { message = TUPLE5(hp, am_trace_ts, pid, am_out, mfarity, timestamp); /* Note, hp is deliberately NOT incremented since it will be reused */ - do_send_to_port(trace_port->id, + do_send_to_port(trace_port->common.id, trace_port, pid, SYS_MSG_TYPE_UNDEFINED, @@ -430,7 +470,7 @@ do_send_schedfix_to_port(Port *trace_port, Eterm pid, Eterm timestamp) { hp += 5; hp = patch_ts(message, hp); - do_send_to_port(trace_port->id, + do_send_to_port(trace_port->common.id, trace_port, pid, SYS_MSG_TYPE_UNDEFINED, @@ -465,13 +505,13 @@ send_to_port(Process *c_p, Eterm message, trace_port = NULL; #else - if (is_not_internal_port(*tracer_pid)) - goto invalid_tracer_port; - trace_port = &erts_port[internal_port_index(*tracer_pid)]; + trace_port = erts_id2port_sflgs(*tracer_pid, + NULL, + 0, + ERTS_PORT_SFLGS_INVALID_TRACER_LOOKUP); - if (INVALID_TRACER_PORT(trace_port, *tracer_pid)) { - invalid_tracer_port: + if (!trace_port) { *tracee_flags &= ~TRACEE_FLAGS; *tracer_pid = NIL; return; @@ -487,10 +527,11 @@ send_to_port(Process *c_p, Eterm message, #endif do_send_to_port(*tracer_pid, trace_port, - c_p ? c_p->id : NIL, + c_p ? c_p->common.id : NIL, SYS_MSG_TYPE_TRACE, message); #ifndef ERTS_SMP + erts_port_release(trace_port); return; } @@ -521,7 +562,7 @@ send_to_port(Process *c_p, Eterm message, trace_port->control_flags &= ~PORT_CONTROL_FLAG_HEAVY; do_send_to_port(*tracer_pid, trace_port, - c_p ? c_p->id : NIL, + c_p ? c_p->common.id : NIL, SYS_MSG_TYPE_TRACE, message); @@ -535,8 +576,11 @@ send_to_port(Process *c_p, Eterm message, * just after writning the real trace message, and now gets scheduled * in again. */ - do_send_schedfix_to_port(trace_port, c_p->id, ts); + do_send_schedfix_to_port(trace_port, c_p->common.id, ts); } + + erts_port_release(trace_port); + UnUseTmpHeapNoproc(LOCAL_HEAP_SIZE); #undef LOCAL_HEAP_SIZE #endif @@ -566,23 +610,27 @@ profile_send(Eterm from, Eterm message) { Port *profiler_port = NULL; /* not smp */ - - - profiler_port = &erts_port[internal_port_index(profiler)]; - - do_send_to_port(profiler, - profiler_port, - NIL, /* or current process->id */ - SYS_MSG_TYPE_SYSPROF, - message); + + profiler_port = erts_id2port_sflgs(profiler, + NULL, + 0, + ERTS_PORT_SFLGS_INVALID_TRACER_LOOKUP); + if (profiler_port) { + do_send_to_port(profiler, + profiler_port, + NIL, /* or current process->common.id */ + SYS_MSG_TYPE_SYSPROF, + message); + erts_port_release(profiler_port); + } } else { - ASSERT(is_internal_pid(profiler) - && internal_pid_index(profiler) < erts_max_processes); + ASSERT(is_internal_pid(profiler)); - profile_p = process_tab[internal_pid_index(profiler)]; + profile_p = erts_proc_lookup(profiler); - if (INVALID_PID(profile_p, profiler)) return; + if (!profile_p) + return; sz = size_object(message); hp = erts_alloc_message_heap(sz, &bp, &off_heap, profile_p, 0); @@ -626,13 +674,11 @@ seq_trace_send_to_port(Process *c_p, trace_port = NULL; #else - if (is_not_internal_port(seq_tracer)) - goto invalid_tracer_port; - - trace_port = &erts_port[internal_port_index(seq_tracer)]; - - if (INVALID_TRACER_PORT(trace_port, seq_tracer)) { - invalid_tracer_port: + trace_port = erts_id2port_sflgs(seq_tracer, + NULL, + 0, + ERTS_PORT_SFLGS_INVALID_TRACER_LOOKUP); + if (!trace_port) { system_seq_tracer = am_false; #ifndef ERTS_SMP UnUseTmpHeapNoproc(LOCAL_HEAP_SIZE); @@ -645,11 +691,12 @@ seq_trace_send_to_port(Process *c_p, #endif do_send_to_port(seq_tracer, trace_port, - c_p ? c_p->id : NIL, + c_p ? c_p->common.id : NIL, SYS_MSG_TYPE_SEQTRACE, message); #ifndef ERTS_SMP + erts_port_release(trace_port); UnUseTmpHeapNoproc(LOCAL_HEAP_SIZE); return; } @@ -675,7 +722,7 @@ seq_trace_send_to_port(Process *c_p, trace_port->control_flags &= ~PORT_CONTROL_FLAG_HEAVY; do_send_to_port(seq_tracer, trace_port, - c_p ? c_p->id : NIL, + c_p ? c_p->common.id : NIL, SYS_MSG_TYPE_SEQTRACE, message); @@ -689,15 +736,20 @@ seq_trace_send_to_port(Process *c_p, * just after writing the real trace message, and now gets scheduled * in again. */ - do_send_schedfix_to_port(trace_port, c_p->id, ts); + do_send_schedfix_to_port(trace_port, c_p->common.id, ts); } + + erts_port_release(trace_port); + UnUseTmpHeapNoproc(LOCAL_HEAP_SIZE); #undef LOCAL_HEAP_SIZE #endif } #define TS_HEAP_WORDS 5 -#define TS_SIZE(p) (((p)->trace_flags & F_TIMESTAMP) ? TS_HEAP_WORDS : 0) +#define TS_SIZE(p) ((ERTS_TRACE_FLAGS((p)) & F_TIMESTAMP) \ + ? TS_HEAP_WORDS \ + : 0) /* * Patch a timestamp into a tuple. The tuple must be the last thing @@ -732,17 +784,17 @@ send_to_tracer(Process *tracee, erts_smp_mtx_lock(&smq_mtx); - if (tracee->trace_flags & F_TIMESTAMP) + if (ERTS_TRACE_FLAGS(tracee) & F_TIMESTAMP) *hpp = patch_ts(msg, *hpp); - if (is_internal_pid(tracee->tracer_proc)) - ERTS_ENQ_TRACE_MSG(tracee->id, tracer_ref, msg, bp); + if (is_internal_pid(ERTS_TRACER_PROC(tracee))) + ERTS_ENQ_TRACE_MSG(tracee->common.id, tracer_ref, msg, bp); else { - ASSERT(is_internal_port(tracee->tracer_proc)); + ASSERT(is_internal_port(ERTS_TRACER_PROC(tracee))); send_to_port(no_fake_sched ? NULL : tracee, msg, - &tracee->tracer_proc, - &tracee->trace_flags); + &ERTS_TRACER_PROC(tracee), + &ERTS_TRACE_FLAGS(tracee)); } erts_smp_mtx_unlock(&smq_mtx); @@ -760,7 +812,7 @@ trace_sched_aux(Process *p, Eterm what, int never_fake_sched) ERTS_TRACER_REF_TYPE tracer_ref = ERTS_NULL_TRACER_REF; int sched_no, curr_func, to_port, no_fake_sched; - if (is_nil(p->tracer_proc)) + if (is_nil(ERTS_TRACER_PROC(p))) return; no_fake_sched = never_fake_sched; @@ -780,22 +832,18 @@ trace_sched_aux(Process *p, Eterm what, int never_fake_sched) } sched_no = IS_TRACED_FL(p, F_TRACE_SCHED_NO); - to_port = is_internal_port(p->tracer_proc); + to_port = is_internal_port(ERTS_TRACER_PROC(p)); if (!to_port) { - ASSERT(is_internal_pid(p->tracer_proc) - && internal_pid_index(p->tracer_proc) < erts_max_processes); + ASSERT(is_internal_pid(ERTS_TRACER_PROC(p))); - ERTS_GET_TRACER_REF(tracer_ref, p->tracer_proc, p->trace_flags); + ERTS_GET_TRACER_REF(tracer_ref, + ERTS_TRACER_PROC(p), + ERTS_TRACE_FLAGS(p)); } - if (ERTS_PROC_IS_EXITING(p) -#ifndef ERTS_SMP - || p->status == P_FREE -#endif - ) { + if (ERTS_PROC_IS_EXITING(p)) curr_func = 0; - } else { if (!p->current) p->current = find_function_from_pc(p->i); @@ -824,7 +872,7 @@ trace_sched_aux(Process *p, Eterm what, int never_fake_sched) } if (!sched_no) { - mess = TUPLE4(hp, am_trace, p->id, what, tmp); + mess = TUPLE4(hp, am_trace, p->common.id, what, tmp); hp += 5; } else { @@ -833,7 +881,7 @@ trace_sched_aux(Process *p, Eterm what, int never_fake_sched) #else Eterm sched_id = make_small(1); #endif - mess = TUPLE5(hp, am_trace, p->id, what, sched_id, tmp); + mess = TUPLE5(hp, am_trace, p->common.id, what, sched_id, tmp); hp += 6; } @@ -874,7 +922,7 @@ trace_send(Process *p, Eterm to, Eterm msg) operation = am_send; if (is_internal_pid(to)) { - if (!erts_pid2proc(p, ERTS_PROC_LOCK_MAIN, to, 0)) + if (!erts_proc_lookup(to)) goto send_to_non_existing_process; } else if(is_external_pid(to) @@ -885,19 +933,19 @@ trace_send(Process *p, Eterm to, Eterm msg) operation = am_atom_put(s, sys_strlen(s)); } - if (is_internal_port(p->tracer_proc)) { + if (is_internal_port(ERTS_TRACER_PROC(p))) { #define LOCAL_HEAP_SIZE (11) DeclareTmpHeapNoproc(local_heap,LOCAL_HEAP_SIZE); UseTmpHeapNoproc(LOCAL_HEAP_SIZE); hp = local_heap; - mess = TUPLE5(hp, am_trace, p->id, operation, msg, to); + mess = TUPLE5(hp, am_trace, p->common.id, operation, msg, to); hp += 6; erts_smp_mtx_lock(&smq_mtx); - if (p->trace_flags & F_TIMESTAMP) { + if (ERTS_TRACE_FLAGS(p) & F_TIMESTAMP) { hp = patch_ts(mess, hp); } - send_to_port(p, mess, &p->tracer_proc, &p->trace_flags); + send_to_port(p, mess, &ERTS_TRACER_PROC(p), &ERTS_TRACE_FLAGS(p)); UnUseTmpHeapNoproc(LOCAL_HEAP_SIZE); #undef LOCAL_HEAP_SIZE erts_smp_mtx_unlock(&smq_mtx); @@ -907,10 +955,11 @@ trace_send(Process *p, Eterm to, Eterm msg) ErlOffHeap *off_heap; ERTS_TRACER_REF_TYPE tracer_ref; - ASSERT(is_internal_pid(p->tracer_proc) - && internal_pid_index(p->tracer_proc) < erts_max_processes); + ASSERT(is_internal_pid(ERTS_TRACER_PROC(p))); - ERTS_GET_TRACER_REF(tracer_ref, p->tracer_proc, p->trace_flags); + ERTS_GET_TRACER_REF(tracer_ref, + ERTS_TRACER_PROC(p), + ERTS_TRACE_FLAGS(p)); sz_msg = size_object(msg); sz_to = size_object(to); @@ -926,16 +975,16 @@ trace_send(Process *p, Eterm to, Eterm msg) sz_msg, &hp, off_heap); - mess = TUPLE5(hp, am_trace, p->id/* Local pid */, operation, msg, to); + mess = TUPLE5(hp, am_trace, p->common.id, operation, msg, to); hp += 6; erts_smp_mtx_lock(&smq_mtx); - if (p->trace_flags & F_TIMESTAMP) { + if (ERTS_TRACE_FLAGS(p) & F_TIMESTAMP) { patch_ts(mess, hp); } - ERTS_ENQ_TRACE_MSG(p->id, tracer_ref, mess, bp); + ERTS_ENQ_TRACE_MSG(p->common.id, tracer_ref, mess, bp); erts_smp_mtx_unlock(&smq_mtx); } } @@ -950,19 +999,19 @@ trace_receive(Process *rp, Eterm msg) size_t sz_msg; Eterm* hp; - if (is_internal_port(rp->tracer_proc)) { + if (is_internal_port(ERTS_TRACER_PROC(rp))) { #define LOCAL_HEAP_SIZE (10) DeclareTmpHeapNoproc(local_heap,LOCAL_HEAP_SIZE); UseTmpHeapNoproc(LOCAL_HEAP_SIZE); hp = local_heap; - mess = TUPLE4(hp, am_trace, rp->id, am_receive, msg); + mess = TUPLE4(hp, am_trace, rp->common.id, am_receive, msg); hp += 5; erts_smp_mtx_lock(&smq_mtx); - if (rp->trace_flags & F_TIMESTAMP) { + if (ERTS_TRACE_FLAGS(rp) & F_TIMESTAMP) { hp = patch_ts(mess, hp); } - send_to_port(rp, mess, &rp->tracer_proc, &rp->trace_flags); + send_to_port(rp, mess, &ERTS_TRACER_PROC(rp), &ERTS_TRACE_FLAGS(rp)); UnUseTmpHeapNoproc(LOCAL_HEAP_SIZE); #undef LOCAL_HEAP_SIZE erts_smp_mtx_unlock(&smq_mtx); @@ -972,10 +1021,11 @@ trace_receive(Process *rp, Eterm msg) ErlOffHeap *off_heap; ERTS_TRACER_REF_TYPE tracer_ref; - ASSERT(is_internal_pid(rp->tracer_proc) - && internal_pid_index(rp->tracer_proc) < erts_max_processes); + ASSERT(is_internal_pid(ERTS_TRACER_PROC(rp))); - ERTS_GET_TRACER_REF(tracer_ref, rp->tracer_proc, rp->trace_flags); + ERTS_GET_TRACER_REF(tracer_ref, + ERTS_TRACER_PROC(rp), + ERTS_TRACE_FLAGS(rp)); sz_msg = size_object(msg); @@ -984,16 +1034,16 @@ trace_receive(Process *rp, Eterm msg) hp = ERTS_ALLOC_SYSMSG_HEAP(hsz, &bp, &off_heap, tracer_ref); msg = copy_struct(msg, sz_msg, &hp, off_heap); - mess = TUPLE4(hp, am_trace, rp->id/* Local pid */, am_receive, msg); + mess = TUPLE4(hp, am_trace, rp->common.id, am_receive, msg); hp += 5; erts_smp_mtx_lock(&smq_mtx); - if (rp->trace_flags & F_TIMESTAMP) { + if (ERTS_TRACE_FLAGS(rp) & F_TIMESTAMP) { patch_ts(mess, hp); } - ERTS_ENQ_TRACE_MSG(rp->id, tracer_ref, mess, bp); + ERTS_ENQ_TRACE_MSG(rp->common.id, tracer_ref, mess, bp); erts_smp_mtx_unlock(&smq_mtx); } } @@ -1003,14 +1053,14 @@ seq_trace_update_send(Process *p) { Eterm seq_tracer = erts_get_system_seq_tracer(); ASSERT((is_tuple(SEQ_TRACE_TOKEN(p)) || is_nil(SEQ_TRACE_TOKEN(p)))); - if ( (p->id == seq_tracer) || (SEQ_TRACE_TOKEN(p) == NIL) + if ( (p->common.id == seq_tracer) || (SEQ_TRACE_TOKEN(p) == NIL) #ifdef USE_VM_PROBES || (SEQ_TRACE_TOKEN(p) == am_have_dt_utag) #endif ) { return 0; } - SEQ_TRACE_TOKEN_SENDER(p) = p->id; /* Internal pid */ + SEQ_TRACE_TOKEN_SENDER(p) = p->common.id; SEQ_TRACE_TOKEN_SERIAL(p) = make_small(++(p -> seq_trace_clock)); SEQ_TRACE_TOKEN_LASTCNT(p) = @@ -1047,7 +1097,7 @@ seq_trace_output_generic(Eterm token, Eterm msg, Uint type, ASSERT(is_tuple(token) || is_nil(token)); if (SEQ_TRACE_T_SENDER(token) == seq_tracer || token == NIL || - (process && process->trace_flags & F_SENSITIVE)) { + (process && ERTS_TRACE_FLAGS(process) & F_SENSITIVE)) { return; } @@ -1111,13 +1161,12 @@ seq_trace_output_generic(Eterm token, Eterm msg, Uint type, Uint sz_label, sz_lastcnt_serial, sz_msg, sz_ts, sz_sender, sz_exitfrom, sz_receiver; - ASSERT(is_internal_pid(seq_tracer) - && internal_pid_index(seq_tracer) < erts_max_processes); + ASSERT(is_internal_pid(seq_tracer)); #ifndef ERTS_SMP - tracer = process_tab[internal_pid_index(seq_tracer)]; - if (INVALID_PID(tracer, tracer->id)) { + tracer = erts_proc_lookup(seq_tracer); + if (!tracer) { system_seq_tracer = am_false; return; /* no need to send anything */ } @@ -1226,17 +1275,17 @@ erts_trace_return_to(Process *p, BeamInstr *pc) hp += 4; } - mess = TUPLE4(hp, am_trace, p->id, am_return_to, mfa); + mess = TUPLE4(hp, am_trace, p->common.id, am_return_to, mfa); hp += 5; erts_smp_mtx_lock(&smq_mtx); - if (p->trace_flags & F_TIMESTAMP) { + if (ERTS_TRACE_FLAGS(p) & F_TIMESTAMP) { hp = patch_ts(mess, hp); } - if (is_internal_port(p->tracer_proc)) { - send_to_port(p, mess, &p->tracer_proc, &p->trace_flags); + if (is_internal_port(ERTS_TRACER_PROC(p))) { + send_to_port(p, mess, &ERTS_TRACER_PROC(p), &ERTS_TRACE_FLAGS(p)); } else { ErlHeapFragment *bp; ErlOffHeap *off_heap; @@ -1246,10 +1295,11 @@ erts_trace_return_to(Process *p, BeamInstr *pc) /* * Find the tracer. */ - ASSERT(is_internal_pid(p->tracer_proc) - && internal_pid_index(p->tracer_proc) < erts_max_processes); + ASSERT(is_internal_pid(ERTS_TRACER_PROC(p))); - ERTS_GET_TRACER_REF(tracer_ref, p->tracer_proc, p->trace_flags); + ERTS_GET_TRACER_REF(tracer_ref, + ERTS_TRACER_PROC(p), + ERTS_TRACE_FLAGS(p)); size = size_object(mess); @@ -1259,7 +1309,7 @@ erts_trace_return_to(Process *p, BeamInstr *pc) * Copy the trace message into the buffer and enqueue it. */ mess = copy_struct(mess, size, &hp, off_heap); - ERTS_ENQ_TRACE_MSG(p->id, tracer_ref, mess, bp); + ERTS_ENQ_TRACE_MSG(p->common.id, tracer_ref, mess, bp); } UnUseTmpHeapNoproc(LOCAL_HEAP_SIZE); #undef LOCAL_HEAP_SIZE @@ -1288,25 +1338,25 @@ erts_trace_return(Process* p, BeamInstr* fi, Eterm retval, Eterm *tracer_pid) /* Breakpoint trace enabled without specifying tracer => * use process tracer and flags */ - tracer_pid = &p->tracer_proc; + tracer_pid = &ERTS_TRACER_PROC(p); } if (is_nil(*tracer_pid)) { /* Trace disabled */ return; } ASSERT(is_internal_pid(*tracer_pid) || is_internal_port(*tracer_pid)); - if (*tracer_pid == p->id) { + if (*tracer_pid == p->common.id) { /* Do not generate trace messages to oneself */ return; } - if (tracer_pid == &p->tracer_proc) { + if (tracer_pid == &ERTS_TRACER_PROC(p)) { /* Tracer specified in process structure => * non-breakpoint trace => * use process flags */ - tracee_flags = &p->trace_flags; + tracee_flags = &ERTS_TRACE_FLAGS(p); #ifdef ERTS_SMP - tracee = p->id; + tracee = p->common.id; #endif } else { /* Tracer not specified in process structure => @@ -1335,7 +1385,7 @@ erts_trace_return(Process* p, BeamInstr* fi, Eterm retval, Eterm *tracer_pid) hp = local_heap; mfa = TUPLE3(hp, mod, name, make_small(arity)); hp += 4; - mess = TUPLE5(hp, am_trace, p->id, am_return_from, mfa, retval); + mess = TUPLE5(hp, am_trace, p->common.id, am_return_from, mfa, retval); hp += 6; erts_smp_mtx_lock(&smq_mtx); if (*tracee_flags & F_TIMESTAMP) { @@ -1355,8 +1405,7 @@ erts_trace_return(Process* p, BeamInstr* fi, Eterm retval, Eterm *tracer_pid) Eterm* limit; #endif - ASSERT(is_internal_pid(*tracer_pid) - && internal_pid_index(*tracer_pid) < erts_max_processes); + ASSERT(is_internal_pid(*tracer_pid)); ERTS_GET_TRACER_REF(tracer_ref, *tracer_pid, *tracee_flags); @@ -1378,7 +1427,7 @@ erts_trace_return(Process* p, BeamInstr* fi, Eterm retval, Eterm *tracer_pid) mfa = TUPLE3(hp, mod, name, make_small(arity)); hp += 4; retval = copy_struct(retval, retval_size, &hp, off_heap); - mess = TUPLE5(hp, am_trace, p->id/* Local pid */, am_return_from, mfa, retval); + mess = TUPLE5(hp, am_trace, p->common.id, am_return_from, mfa, retval); hp += 6; erts_smp_mtx_lock(&smq_mtx); @@ -1419,25 +1468,25 @@ erts_trace_exception(Process* p, BeamInstr mfa[3], Eterm class, Eterm value, /* Breakpoint trace enabled without specifying tracer => * use process tracer and flags */ - tracer_pid = &p->tracer_proc; + tracer_pid = &ERTS_TRACER_PROC(p); } if (is_nil(*tracer_pid)) { /* Trace disabled */ return; } ASSERT(is_internal_pid(*tracer_pid) || is_internal_port(*tracer_pid)); - if (*tracer_pid == p->id) { + if (*tracer_pid == p->common.id) { /* Do not generate trace messages to oneself */ return; } - if (tracer_pid == &p->tracer_proc) { + if (tracer_pid == &ERTS_TRACER_PROC(p)) { /* Tracer specified in process structure => * non-breakpoint trace => * use process flags */ - tracee_flags = &p->trace_flags; + tracee_flags = &ERTS_TRACE_FLAGS(p); #ifdef ERTS_SMP - tracee = p->id; + tracee = p->common.id; #endif if (! (*tracee_flags & F_TRACE_CALLS)) { return; @@ -1465,7 +1514,7 @@ erts_trace_exception(Process* p, BeamInstr mfa[3], Eterm class, Eterm value, hp += 4; cv = TUPLE2(hp, class, value); hp += 3; - mess = TUPLE5(hp, am_trace, p->id, am_exception_from, mfa_tuple, cv); + mess = TUPLE5(hp, am_trace, p->common.id, am_exception_from, mfa_tuple, cv); hp += 6; ASSERT((hp - local_heap) <= LOCAL_HEAP_SIZE); erts_smp_mtx_lock(&smq_mtx); @@ -1487,8 +1536,7 @@ erts_trace_exception(Process* p, BeamInstr mfa[3], Eterm class, Eterm value, Eterm* limit; #endif - ASSERT(is_internal_pid(*tracer_pid) - && internal_pid_index(*tracer_pid) < erts_max_processes); + ASSERT(is_internal_pid(*tracer_pid)); ERTS_GET_TRACER_REF(tracer_ref, *tracer_pid, *tracee_flags); @@ -1512,7 +1560,7 @@ erts_trace_exception(Process* p, BeamInstr mfa[3], Eterm class, Eterm value, value = copy_struct(value, value_size, &hp, off_heap); cv = TUPLE2(hp, class, value); hp += 3; - mess = TUPLE5(hp, am_trace, p->id/* Local pid */, + mess = TUPLE5(hp, am_trace, p->common.id, am_exception_from, mfa_tuple, cv); hp += 6; @@ -1566,25 +1614,25 @@ erts_call_trace(Process* p, BeamInstr mfa[3], Binary *match_spec, /* Breakpoint trace enabled without specifying tracer => * use process tracer and flags */ - tracer_pid = &p->tracer_proc; + tracer_pid = &ERTS_TRACER_PROC(p); } if (is_nil(*tracer_pid)) { /* Trace disabled */ return 0; } ASSERT(is_internal_pid(*tracer_pid) || is_internal_port(*tracer_pid)); - if (*tracer_pid == p->id) { + if (*tracer_pid == p->common.id) { /* Do not generate trace messages to oneself */ return 0; } - if (tracer_pid == &p->tracer_proc) { + if (tracer_pid == &ERTS_TRACER_PROC(p)) { /* Tracer specified in process structure => * non-breakpoint trace => * use process flags */ - tracee_flags = &p->trace_flags; + tracee_flags = &ERTS_TRACE_FLAGS(p); #ifdef ERTS_SMP - tracee = p->id; + tracee = p->common.id; #endif } else { /* Tracer not specified in process structure => @@ -1592,7 +1640,7 @@ erts_call_trace(Process* p, BeamInstr mfa[3], Binary *match_spec, * meta trace => * use fixed flag set instead of process flags */ - if (p->trace_flags & F_SENSITIVE) { + if (ERTS_TRACE_FLAGS(p) & F_SENSITIVE) { /* No trace messages for sensitive processes. */ return 0; } @@ -1650,7 +1698,7 @@ erts_call_trace(Process* p, BeamInstr mfa[3], Binary *match_spec, if (!erts_is_valid_tracer_port(*tracer_pid)) { #ifdef ERTS_SMP - ASSERT(is_nil(tracee) || tracer_pid == &p->tracer_proc); + ASSERT(is_nil(tracee) || tracer_pid == &ERTS_TRACER_PROC(p)); if (is_not_nil(tracee)) erts_smp_proc_lock(p, ERTS_PROC_LOCKS_ALL_MINOR); #endif @@ -1752,7 +1800,7 @@ erts_call_trace(Process* p, BeamInstr mfa[3], Binary *match_spec, * Build the trace tuple and send it to the port. */ - mess = TUPLE4(hp, am_trace, p->id, am_call, mfa_tuple); + mess = TUPLE4(hp, am_trace, p->common.id, am_call, mfa_tuple); hp += 5; if (pam_result != am_true) { hp[-5] = make_arityval(5); @@ -1787,21 +1835,21 @@ erts_call_trace(Process* p, BeamInstr mfa[3], Binary *match_spec, Eterm* limit; #endif - ASSERT(is_internal_pid(*tracer_pid) - && internal_pid_index(*tracer_pid) < erts_max_processes); + ASSERT(is_internal_pid(*tracer_pid)); tracer = erts_pid2proc(p, ERTS_PROC_LOCK_MAIN, *tracer_pid, ERTS_PROC_LOCK_STATUS); if (!tracer) invalid_tracer = 1; else { - invalid_tracer = (tracer->trace_flags & F_TRACER) == 0; + invalid_tracer = !(ERTS_TRACE_FLAGS(tracer) & F_TRACER); erts_smp_proc_unlock(tracer, ERTS_PROC_LOCK_STATUS); } if (invalid_tracer) { #ifdef ERTS_SMP - ASSERT(is_nil(tracee) || tracer_pid == &p->tracer_proc); + ASSERT(is_nil(tracee) + || tracer_pid == &ERTS_TRACER_PROC(p)); if (is_not_nil(tracee)) erts_smp_proc_lock(p, ERTS_PROC_LOCKS_ALL_MINOR); #endif @@ -1925,7 +1973,7 @@ erts_call_trace(Process* p, BeamInstr mfa[3], Binary *match_spec, * Build the trace tuple and enqueue it. */ - mess = TUPLE4(hp, am_trace, p->id/* Local pid */, am_call, mfa_tuple); + mess = TUPLE4(hp, am_trace, p->common.id, am_call, mfa_tuple); hp += 5; if (pam_result != am_true) { hp[-5] = make_arityval(5); @@ -1963,17 +2011,17 @@ trace_proc(Process *c_p, Process *t_p, Eterm what, Eterm data) ERTS_SMP_LC_ASSERT((erts_proc_lc_my_proc_locks(t_p) != 0) || erts_thr_progress_is_blocking()); - if (is_internal_port(t_p->tracer_proc)) { + if (is_internal_port(ERTS_TRACER_PROC(t_p))) { #define LOCAL_HEAP_SIZE (5+5) DeclareTmpHeapNoproc(local_heap,LOCAL_HEAP_SIZE); UseTmpHeapNoproc(LOCAL_HEAP_SIZE); hp = local_heap; - mess = TUPLE4(hp, am_trace, t_p->id, what, data); + mess = TUPLE4(hp, am_trace, t_p->common.id, what, data); hp += 5; erts_smp_mtx_lock(&smq_mtx); - if (t_p->trace_flags & F_TIMESTAMP) { + if (ERTS_TRACE_FLAGS(t_p) & F_TIMESTAMP) { hp = patch_ts(mess, hp); } send_to_port( @@ -1984,7 +2032,9 @@ trace_proc(Process *c_p, Process *t_p, Eterm what, Eterm data) /* Fake schedule out and in are never sent when smp enabled */ c_p, #endif - mess, &t_p->tracer_proc, &t_p->trace_flags); + mess, + &ERTS_TRACER_PROC(t_p), + &ERTS_TRACE_FLAGS(t_p)); UnUseTmpHeapNoproc(LOCAL_HEAP_SIZE); #undef LOCAL_HEAP_SIZE erts_smp_mtx_unlock(&smq_mtx); @@ -1995,10 +2045,11 @@ trace_proc(Process *c_p, Process *t_p, Eterm what, Eterm data) ERTS_TRACER_REF_TYPE tracer_ref; size_t sz_data; - ASSERT(is_internal_pid(t_p->tracer_proc) - && internal_pid_index(t_p->tracer_proc) < erts_max_processes); + ASSERT(is_internal_pid(ERTS_TRACER_PROC(t_p))); - ERTS_GET_TRACER_REF(tracer_ref, t_p->tracer_proc, t_p->trace_flags); + ERTS_GET_TRACER_REF(tracer_ref, + ERTS_TRACER_PROC(t_p), + ERTS_TRACE_FLAGS(t_p)); sz_data = size_object(data); @@ -2007,16 +2058,16 @@ trace_proc(Process *c_p, Process *t_p, Eterm what, Eterm data) hp = ERTS_ALLOC_SYSMSG_HEAP(need, &bp, &off_heap, tracer_ref); tmp = copy_struct(data, sz_data, &hp, off_heap); - mess = TUPLE4(hp, am_trace, t_p->id/* Local pid */, what, tmp); + mess = TUPLE4(hp, am_trace, t_p->common.id, what, tmp); hp += 5; erts_smp_mtx_lock(&smq_mtx); - if (t_p->trace_flags & F_TIMESTAMP) { + if (ERTS_TRACE_FLAGS(t_p) & F_TIMESTAMP) { hp = patch_ts(mess, hp); } - ERTS_ENQ_TRACE_MSG(t_p->id, tracer_ref, mess, bp); + ERTS_ENQ_TRACE_MSG(t_p->common.id, tracer_ref, mess, bp); erts_smp_mtx_unlock(&smq_mtx); } } @@ -2037,7 +2088,7 @@ trace_proc_spawn(Process *p, Eterm pid, Eterm mess; Eterm* hp; - if (is_internal_port(p->tracer_proc)) { + if (is_internal_port(ERTS_TRACER_PROC(p))) { #define LOCAL_HEAP_SIZE (4+6+5) DeclareTmpHeapNoproc(local_heap,LOCAL_HEAP_SIZE); UseTmpHeapNoproc(LOCAL_HEAP_SIZE); @@ -2045,13 +2096,13 @@ trace_proc_spawn(Process *p, Eterm pid, hp = local_heap; mfa = TUPLE3(hp, mod, func, args); hp += 4; - mess = TUPLE5(hp, am_trace, p->id, am_spawn, pid, mfa); + mess = TUPLE5(hp, am_trace, p->common.id, am_spawn, pid, mfa); hp += 6; erts_smp_mtx_lock(&smq_mtx); - if (p->trace_flags & F_TIMESTAMP) { + if (ERTS_TRACE_FLAGS(p) & F_TIMESTAMP) { hp = patch_ts(mess, hp); } - send_to_port(p, mess, &p->tracer_proc, &p->trace_flags); + send_to_port(p, mess, &ERTS_TRACER_PROC(p), &ERTS_TRACE_FLAGS(p)); UnUseTmpHeapNoproc(LOCAL_HEAP_SIZE); #undef LOCAL_HEAP_SIZE erts_smp_mtx_unlock(&smq_mtx); @@ -2063,10 +2114,11 @@ trace_proc_spawn(Process *p, Eterm pid, size_t sz_args, sz_pid; Uint need; - ASSERT(is_internal_pid(p->tracer_proc) - && internal_pid_index(p->tracer_proc) < erts_max_processes); + ASSERT(is_internal_pid(ERTS_TRACER_PROC(p))); - ERTS_GET_TRACER_REF(tracer_ref, p->tracer_proc, p->trace_flags); + ERTS_GET_TRACER_REF(tracer_ref, + ERTS_TRACER_PROC(p), + ERTS_TRACE_FLAGS(p)); sz_args = size_object(args); sz_pid = size_object(pid); @@ -2078,16 +2130,16 @@ trace_proc_spawn(Process *p, Eterm pid, mfa = TUPLE3(hp, mod, func, tmp); hp += 4; tmp = copy_struct(pid, sz_pid, &hp, off_heap); - mess = TUPLE5(hp, am_trace, p->id, am_spawn, tmp, mfa); + mess = TUPLE5(hp, am_trace, p->common.id, am_spawn, tmp, mfa); hp += 6; erts_smp_mtx_lock(&smq_mtx); - if (p->trace_flags & F_TIMESTAMP) { + if (ERTS_TRACE_FLAGS(p) & F_TIMESTAMP) { hp = patch_ts(mess, hp); } - ERTS_ENQ_TRACE_MSG(p->id, tracer_ref, mess, bp); + ERTS_ENQ_TRACE_MSG(p->common.id, tracer_ref, mess, bp); erts_smp_mtx_unlock(&smq_mtx); } } @@ -2107,187 +2159,6 @@ void save_calls(Process *p, Export *e) } } -/* - * Entry point called by the trace wrap functions in erl_bif_wrap.c - * - * The trace wrap functions are themselves called through the export - * entries instead of the original BIF functions. - */ -Eterm -erts_bif_trace(int bif_index, Process* p, Eterm* args, BeamInstr* I) -{ - Eterm result; - int meta = !!(erts_bif_trace_flags[bif_index] & BIF_TRACE_AS_META); - - ERTS_SMP_CHK_HAVE_ONLY_MAIN_PROC_LOCK(p); - - if (!ARE_TRACE_FLAGS_ON(p, F_TRACE_CALLS) && (! meta)) { - /* Warning! This is an Optimization. - * - * If neither meta trace is active nor process trace flags then - * no tracing will occur. Doing the whole else branch will - * also do nothing, only slower. - */ - Eterm (*func)(Process*, Eterm*, BeamInstr*) = bif_table[bif_index].f; - result = func(p, args, I); - } else { - Eterm (*func)(Process*, Eterm*, BeamInstr*); - Export* ep = bif_export[bif_index]; - Uint32 flags = 0, flags_meta = 0; - int global = !!(erts_bif_trace_flags[bif_index] & BIF_TRACE_AS_GLOBAL); - int local = !!(erts_bif_trace_flags[bif_index] & BIF_TRACE_AS_LOCAL); - int time = !!(erts_bif_trace_flags[bif_index] & BIF_TRACE_AS_CALL_TIME); - Eterm meta_tracer_pid = NIL; - int applying = (I == &(ep->code[3])); /* Yup, the apply code for a bif - * is actually in the - * export entry */ - BeamInstr *cp = p->cp; - - /* - * Make continuation pointer OK, it is not during direct BIF calls, - * but it is correct during apply of bif. - */ - if (!applying) { - p->cp = I; - } - if (global || local) { - flags = erts_call_trace(p, ep->code, ep->match_prog_set, args, - local, &p->tracer_proc); - } - if (meta) { - flags_meta = erts_bif_mtrace(p, ep->code+3, args, local, - &meta_tracer_pid); - } - if (time) { - BpDataTime *bdt = NULL; - BeamInstr *pc = (BeamInstr *)ep->code+3; - - bdt = (BpDataTime *) erts_get_time_break(p, pc); - ASSERT(bdt); - - if (!bdt->pause) { - erts_trace_time_break(p, pc, bdt, ERTS_BP_CALL_TIME_CALL); - } - } - /* Restore original continuation pointer (if changed). */ - p->cp = cp; - - func = bif_table[bif_index].f; - - result = func(p, args, I); - - if (applying && (flags & MATCH_SET_RETURN_TO_TRACE)) { - BeamInstr i_return_trace = beam_return_trace[0]; - BeamInstr i_return_to_trace = beam_return_to_trace[0]; - BeamInstr i_return_time_trace = beam_return_time_trace[0]; - Eterm *cpp; - /* Maybe advance cp to skip trace stack frames */ - for (cpp = p->stop; ; cp = cp_val(*cpp++)) { - if (*cp == i_return_trace) { - /* Skip stack frame variables */ - while (is_not_CP(*cpp)) cpp++; - cpp += 2; /* Skip return_trace parameters */ - } else if (*cp == i_return_time_trace) { - /* Skip stack frame variables */ - while (is_not_CP(*cpp)) cpp++; - cpp += 1; /* Skip return_time_trace parameters */ - } else if (*cp == i_return_to_trace) { - /* A return_to trace message is going to be generated - * by normal means, so we do not have to. - */ - cp = NULL; - break; - } else break; - } - } - - /* Try to get these in the order - * they usually appear in normal code... */ - if (is_non_value(result)) { - Uint reason = p->freason; - if (reason != TRAP) { - Eterm class; - Eterm value = p->fvalue; - DeclareTmpHeapNoproc(nocatch,3); - UseTmpHeapNoproc(3); - /* Expand error value like in handle_error() */ - if (reason & EXF_ARGLIST) { - Eterm *tp; - ASSERT(is_tuple(value)); - tp = tuple_val(value); - value = tp[1]; - } - if ((reason & EXF_THROWN) && (p->catches <= 0)) { - value = TUPLE2(nocatch, am_nocatch, value); - reason = EXC_ERROR; - } - /* Note: expand_error_value() could theoretically - * allocate on the heap, but not for any error - * returned by a BIF, and it would do no harm, - * just be annoying. - */ - value = expand_error_value(p, reason, value); - class = exception_tag[GET_EXC_CLASS(reason)]; - - if (flags_meta & MATCH_SET_EXCEPTION_TRACE) { - erts_trace_exception(p, ep->code, class, value, - &meta_tracer_pid); - } - if (flags & MATCH_SET_EXCEPTION_TRACE) { - erts_trace_exception(p, ep->code, class, value, - &p->tracer_proc); - } - if ((flags & MATCH_SET_RETURN_TO_TRACE) && p->catches > 0) { - /* can only happen if(local)*/ - Eterm *ptr = p->stop; - ASSERT(is_CP(*ptr)); - ASSERT(ptr <= STACK_START(p)); - /* Search the nearest stack frame for a catch */ - while (++ptr < STACK_START(p)) { - if (is_CP(*ptr)) break; - if (is_catch(*ptr)) { - if (applying) { - /* Apply of BIF, cp is in calling function */ - if (cp) erts_trace_return_to(p, cp); - } else { - /* Direct bif call, I points into - * calling function */ - erts_trace_return_to(p, I); - } - } - } - } - UnUseTmpHeapNoproc(3); - if ((flags_meta|flags) & MATCH_SET_EXCEPTION_TRACE) { - erts_smp_proc_lock(p, ERTS_PROC_LOCKS_ALL_MINOR); - p->trace_flags |= F_EXCEPTION_TRACE; - erts_smp_proc_unlock(p, ERTS_PROC_LOCKS_ALL_MINOR); - } - } - } else { - if (flags_meta & MATCH_SET_RX_TRACE) { - erts_trace_return(p, ep->code, result, &meta_tracer_pid); - } - /* MATCH_SET_RETURN_TO_TRACE cannot occur if(meta) */ - if (flags & MATCH_SET_RX_TRACE) { - erts_trace_return(p, ep->code, result, &p->tracer_proc); - } - if (flags & MATCH_SET_RETURN_TO_TRACE) { - /* can only happen if(local)*/ - if (applying) { - /* Apply of BIF, cp is in calling function */ - if (cp) erts_trace_return_to(p, cp); - } else { - /* Direct bif call, I points into calling function */ - erts_trace_return_to(p, I); - } - } - } - } - ERTS_SMP_CHK_HAVE_ONLY_MAIN_PROC_LOCK(p); - return result; -} - /* Sends trace message: * {trace_ts, Pid, What, Msg, Timestamp} * or {trace, Pid, What, Msg} @@ -2332,7 +2203,7 @@ trace_gc(Process *p, Eterm what) AM_bin_old_vheap_block_size }; - Uint values[] = { + UWord values[] = { OLD_HEAP(p) ? OLD_HEND(p) - OLD_HEAP(p) : 0, HEAP_SIZE(p), MBUF_SIZE(p), @@ -2346,7 +2217,7 @@ trace_gc(Process *p, Eterm what) BIN_OLD_VHEAP_SZ(p) }; #define LOCAL_HEAP_SIZE \ - (sizeof(values)/sizeof(Eterm)) * \ + (sizeof(values)/sizeof(*values)) * \ (2/*cons*/ + 3/*2-tuple*/ + BIG_UINT_HEAP_SIZE) + \ 5/*4-tuple */ + TS_HEAP_WORDS DeclareTmpHeap(local_heap,LOCAL_HEAP_SIZE,p); @@ -2354,31 +2225,32 @@ trace_gc(Process *p, Eterm what) Eterm* limit; #endif - ASSERT(sizeof(values)/sizeof(Uint) == sizeof(tags)/sizeof(Eterm)); + ASSERT(sizeof(values)/sizeof(*values) == sizeof(tags)/sizeof(Eterm)); UseTmpHeap(LOCAL_HEAP_SIZE,p); - if (is_internal_port(p->tracer_proc)) { + if (is_internal_port(ERTS_TRACER_PROC(p))) { hp = local_heap; #ifdef DEBUG size = 0; - (void) erts_bld_atom_uint_2tup_list(NULL, + (void) erts_bld_atom_uword_2tup_list(NULL, &size, - sizeof(values)/sizeof(Uint), + sizeof(values)/sizeof(*values), tags, values); size += 5/*4-tuple*/ + TS_SIZE(p); #endif } else { - ASSERT(is_internal_pid(p->tracer_proc) - && internal_pid_index(p->tracer_proc) < erts_max_processes); + ASSERT(is_internal_pid(ERTS_TRACER_PROC(p))); - ERTS_GET_TRACER_REF(tracer_ref, p->tracer_proc, p->trace_flags); + ERTS_GET_TRACER_REF(tracer_ref, + ERTS_TRACER_PROC(p), + ERTS_TRACE_FLAGS(p)); size = 0; - (void) erts_bld_atom_uint_2tup_list(NULL, + (void) erts_bld_atom_uword_2tup_list(NULL, &size, - sizeof(values)/sizeof(Uint), + sizeof(values)/sizeof(*values), tags, values); size += 5/*4-tuple*/ + TS_SIZE(p); @@ -2391,31 +2263,158 @@ trace_gc(Process *p, Eterm what) ASSERT(size <= LOCAL_HEAP_SIZE); #endif - msg = erts_bld_atom_uint_2tup_list(&hp, + msg = erts_bld_atom_uword_2tup_list(&hp, NULL, - sizeof(values)/sizeof(Uint), + sizeof(values)/sizeof(*values), tags, values); - msg = TUPLE4(hp, am_trace, p->id/* Local pid */, what, msg); + msg = TUPLE4(hp, am_trace, p->common.id, what, msg); hp += 5; erts_smp_mtx_lock(&smq_mtx); - if (p->trace_flags & F_TIMESTAMP) { + if (ERTS_TRACE_FLAGS(p) & F_TIMESTAMP) { hp = patch_ts(msg, hp); } ASSERT(hp == limit); - if (is_internal_port(p->tracer_proc)) - send_to_port(p, msg, &p->tracer_proc, &p->trace_flags); + if (is_internal_port(ERTS_TRACER_PROC(p))) + send_to_port(p, msg, &ERTS_TRACER_PROC(p), &ERTS_TRACE_FLAGS(p)); else - ERTS_ENQ_TRACE_MSG(p->id, tracer_ref, msg, bp); + ERTS_ENQ_TRACE_MSG(p->common.id, tracer_ref, msg, bp); erts_smp_mtx_unlock(&smq_mtx); UnUseTmpHeap(LOCAL_HEAP_SIZE,p); #undef LOCAL_HEAP_SIZE } +void +monitor_long_schedule_proc(Process *p, BeamInstr *in_fp, BeamInstr *out_fp, Uint time) +{ + ErlHeapFragment *bp; + ErlOffHeap *off_heap; +#ifndef ERTS_SMP + Process *monitor_p; +#endif + Uint hsz; + Eterm *hp, list, in_mfa = am_undefined, out_mfa = am_undefined; + Eterm in_tpl, out_tpl, tmo_tpl, tmo, msg; + + +#ifndef ERTS_SMP + ASSERT(is_internal_pid(system_monitor)); + monitor_p = erts_proc_lookup(system_monitor); + if (!monitor_p || p == monitor_p) { + return; + } +#endif + /* + * Size: {monitor, pid, long_schedule, [{timeout, T}, {in, {M,F,A}},{out,{M,F,A}}]} -> + * 5 (top tuple of 4), (3 (elements) * 2 (cons)) + 3 (timeout tuple of 2) + size of Timeout + + * (2 * 3 (in/out tuple of 2)) + + * 0 (unknown) or 4 (MFA tuple of 3) + 0 (unknown) or 4 (MFA tuple of 3) + * = 20 + (in_fp != NULL) ? 4 : 0 + (out_fp != NULL) ? 4 : 0 + size of Timeout + */ + hsz = 20 + ((in_fp != NULL) ? 4 : 0) + ((out_fp != NULL) ? 4 : 0); + (void) erts_bld_uint(NULL, &hsz, time); + hp = ERTS_ALLOC_SYSMSG_HEAP(hsz, &bp, &off_heap, monitor_p); + tmo = erts_bld_uint(&hp, NULL, time); + if (in_fp != NULL) { + in_mfa = TUPLE3(hp,(Eterm) in_fp[0], (Eterm) in_fp[1], make_small(in_fp[2])); + hp +=4; + } + if (out_fp != NULL) { + out_mfa = TUPLE3(hp,(Eterm) out_fp[0], (Eterm) out_fp[1], make_small(out_fp[2])); + hp +=4; + } + tmo_tpl = TUPLE2(hp,am_timeout, tmo); + hp += 3; + in_tpl = TUPLE2(hp,am_in,in_mfa); + hp += 3; + out_tpl = TUPLE2(hp,am_out,out_mfa); + hp += 3; + list = CONS(hp,out_tpl,NIL); + hp += 2; + list = CONS(hp,in_tpl,list); + hp += 2; + list = CONS(hp,tmo_tpl,list); + hp += 2; + msg = TUPLE4(hp, am_monitor, p->common.id, am_long_schedule, list); + hp += 5; +#ifdef ERTS_SMP + enqueue_sys_msg(SYS_MSG_TYPE_SYSMON, p->common.id, NIL, msg, bp); +#else + erts_queue_message(monitor_p, NULL, bp, msg, NIL +#ifdef USE_VM_PROBES + , NIL +#endif + ); +#endif +} +void +monitor_long_schedule_port(Port *pp, ErtsPortTaskType type, Uint time) +{ + ErlHeapFragment *bp; + ErlOffHeap *off_heap; +#ifndef ERTS_SMP + Process *monitor_p; +#endif + Uint hsz; + Eterm *hp, list, op; + Eterm op_tpl, tmo_tpl, tmo, msg; + + +#ifndef ERTS_SMP + ASSERT(is_internal_pid(system_monitor)); + monitor_p = erts_proc_lookup(system_monitor); + if (!monitor_p) { + return; + } +#endif + /* + * Size: {monitor, port, long_schedule, [{timeout, T}, {op, Operation}]} -> + * 5 (top tuple of 4), (2 (elements) * 2 (cons)) + 3 (timeout tuple of 2) + * + size of Timeout + 3 (op tuple of 2 atoms) + * = 15 + size of Timeout + */ + hsz = 15; + (void) erts_bld_uint(NULL, &hsz, time); + + hp = ERTS_ALLOC_SYSMSG_HEAP(hsz, &bp, &off_heap, monitor_p); + + switch (type) { + case ERTS_PORT_TASK_PROC_SIG: op = am_proc_sig; break; + case ERTS_PORT_TASK_TIMEOUT: op = am_timeout; break; + case ERTS_PORT_TASK_INPUT: op = am_input; break; + case ERTS_PORT_TASK_OUTPUT: op = am_output; break; + case ERTS_PORT_TASK_EVENT: op = am_event; break; + case ERTS_PORT_TASK_DIST_CMD: op = am_dist_cmd; break; + default: op = am_undefined; break; + } + + tmo = erts_bld_uint(&hp, NULL, time); + + op_tpl = TUPLE2(hp,am_port_op,op); + hp += 3; + tmo_tpl = TUPLE2(hp,am_timeout, tmo); + hp += 3; + + list = CONS(hp,op_tpl,NIL); + hp += 2; + list = CONS(hp,tmo_tpl,list); + hp += 2; + msg = TUPLE4(hp, am_monitor, pp->common.id, am_long_schedule, list); + hp += 5; +#ifdef ERTS_SMP + enqueue_sys_msg(SYS_MSG_TYPE_SYSMON, pp->common.id, NIL, msg, bp); +#else + erts_queue_message(monitor_p, NULL, bp, msg, NIL +#ifdef USE_VM_PROBES + , NIL +#endif + ); +#endif +} void monitor_long_gc(Process *p, Uint time) { @@ -2435,7 +2434,7 @@ monitor_long_gc(Process *p, Uint time) { am_old_heap_size, am_heap_size }; - Eterm values[] = { + UWord values[] = { time, OLD_HEAP(p) ? OLD_HEND(p) - OLD_HEAP(p) : 0, HEAP_SIZE(p), @@ -2449,18 +2448,16 @@ monitor_long_gc(Process *p, Uint time) { #endif #ifndef ERTS_SMP - ASSERT(is_internal_pid(system_monitor) - && internal_pid_index(system_monitor) < erts_max_processes); - monitor_p = process_tab[internal_pid_index(system_monitor)]; - if (INVALID_PID(monitor_p, system_monitor) || p == monitor_p) { + ASSERT(is_internal_pid(system_monitor)); + monitor_p = erts_proc_lookup(system_monitor); + if (!monitor_p || p == monitor_p) return; - } #endif hsz = 0; - (void) erts_bld_atom_uint_2tup_list(NULL, + (void) erts_bld_atom_uword_2tup_list(NULL, &hsz, - sizeof(values)/sizeof(Uint), + sizeof(values)/sizeof(*values), tags, values); hsz += 5 /* 4-tuple */; @@ -2471,12 +2468,12 @@ monitor_long_gc(Process *p, Uint time) { hp_end = hp + hsz; #endif - list = erts_bld_atom_uint_2tup_list(&hp, + list = erts_bld_atom_uword_2tup_list(&hp, NULL, - sizeof(values)/sizeof(Uint), + sizeof(values)/sizeof(*values), tags, values); - msg = TUPLE4(hp, am_monitor, p->id/* Local pid */, am_long_gc, list); + msg = TUPLE4(hp, am_monitor, p->common.id, am_long_gc, list); #ifdef DEBUG hp += 5 /* 4-tuple */; @@ -2484,7 +2481,7 @@ monitor_long_gc(Process *p, Uint time) { #endif #ifdef ERTS_SMP - enqueue_sys_msg(SYS_MSG_TYPE_SYSMON, p->id, NIL, msg, bp); + enqueue_sys_msg(SYS_MSG_TYPE_SYSMON, p->common.id, NIL, msg, bp); #else erts_queue_message(monitor_p, NULL, bp, msg, NIL #ifdef USE_VM_PROBES @@ -2511,7 +2508,7 @@ monitor_large_heap(Process *p) { am_old_heap_size, am_heap_size }; - Uint values[] = { + UWord values[] = { OLD_HEAP(p) ? OLD_HEND(p) - OLD_HEAP(p) : 0, HEAP_SIZE(p), MBUF_SIZE(p), @@ -2525,18 +2522,17 @@ monitor_large_heap(Process *p) { #ifndef ERTS_SMP - ASSERT(is_internal_pid(system_monitor) - && internal_pid_index(system_monitor) < erts_max_processes); - monitor_p = process_tab[internal_pid_index(system_monitor)]; - if (INVALID_PID(monitor_p, system_monitor) || p == monitor_p) { + ASSERT(is_internal_pid(system_monitor)); + monitor_p = erts_proc_lookup(system_monitor); + if (!monitor_p || p == monitor_p) { return; } #endif hsz = 0; - (void) erts_bld_atom_uint_2tup_list(NULL, + (void) erts_bld_atom_uword_2tup_list(NULL, &hsz, - sizeof(values)/sizeof(Uint), + sizeof(values)/sizeof(*values), tags, values); hsz += 5 /* 4-tuple */; @@ -2547,12 +2543,12 @@ monitor_large_heap(Process *p) { hp_end = hp + hsz; #endif - list = erts_bld_atom_uint_2tup_list(&hp, + list = erts_bld_atom_uword_2tup_list(&hp, NULL, - sizeof(values)/sizeof(Uint), + sizeof(values)/sizeof(*values), tags, values); - msg = TUPLE4(hp, am_monitor, p->id/* Local pid */, am_large_heap, list); + msg = TUPLE4(hp, am_monitor, p->common.id, am_large_heap, list); #ifdef DEBUG hp += 5 /* 4-tuple */; @@ -2560,7 +2556,7 @@ monitor_large_heap(Process *p) { #endif #ifdef ERTS_SMP - enqueue_sys_msg(SYS_MSG_TYPE_SYSMON, p->id, NIL, msg, bp); + enqueue_sys_msg(SYS_MSG_TYPE_SYSMON, p->common.id, NIL, msg, bp); #else erts_queue_message(monitor_p, NULL, bp, msg, NIL #ifdef USE_VM_PROBES @@ -2580,21 +2576,19 @@ monitor_generic(Process *p, Eterm type, Eterm spec) { Eterm *hp, msg; #ifndef ERTS_SMP - ASSERT(is_internal_pid(system_monitor) - && internal_pid_index(system_monitor) < erts_max_processes); - monitor_p = process_tab[internal_pid_index(system_monitor)]; - if (INVALID_PID(monitor_p, system_monitor) || p == monitor_p) { + ASSERT(is_internal_pid(system_monitor)); + monitor_p = erts_proc_lookup(system_monitor); + if (!monitor_p || p == monitor_p) return; - } #endif hp = ERTS_ALLOC_SYSMSG_HEAP(5, &bp, &off_heap, monitor_p); - msg = TUPLE4(hp, am_monitor, p->id/* Local pid */, type, spec); + msg = TUPLE4(hp, am_monitor, p->common.id, type, spec); hp += 5; #ifdef ERTS_SMP - enqueue_sys_msg(SYS_MSG_TYPE_SYSMON, p->id, NIL, msg, bp); + enqueue_sys_msg(SYS_MSG_TYPE_SYSMON, p->common.id, NIL, msg, bp); #else erts_queue_message(monitor_p, NULL, bp, msg, NIL #ifdef USE_VM_PROBES @@ -2716,21 +2710,21 @@ trace_port_open(Port *p, Eterm calling_pid, Eterm drv_name) { Eterm mess; Eterm* hp; - if (is_internal_port(p->tracer_proc)) { + if (is_internal_port(ERTS_TRACER_PROC(p))) { #define LOCAL_HEAP_SIZE (5+6) DeclareTmpHeapNoproc(local_heap,LOCAL_HEAP_SIZE); UseTmpHeapNoproc(LOCAL_HEAP_SIZE); hp = local_heap; - mess = TUPLE5(hp, am_trace, calling_pid, am_open, p->id, drv_name); + mess = TUPLE5(hp, am_trace, calling_pid, am_open, p->common.id, drv_name); hp += 6; erts_smp_mtx_lock(&smq_mtx); - if (p->trace_flags & F_TIMESTAMP) { + if (ERTS_TRACE_FLAGS(p) & F_TIMESTAMP) { hp = patch_ts(mess, hp); } /* No fake schedule */ - send_to_port(NULL, mess, &p->tracer_proc, &p->trace_flags); + send_to_port(NULL, mess, &ERTS_TRACER_PROC(p), &ERTS_TRACE_FLAGS(p)); UnUseTmpHeapNoproc(LOCAL_HEAP_SIZE); #undef LOCAL_HEAP_SIZE erts_smp_mtx_unlock(&smq_mtx); @@ -2740,25 +2734,26 @@ trace_port_open(Port *p, Eterm calling_pid, Eterm drv_name) { size_t sz_data; ERTS_TRACER_REF_TYPE tracer_ref; - ASSERT(is_internal_pid(p->tracer_proc) - && internal_pid_index(p->tracer_proc) < erts_max_processes); + ASSERT(is_internal_pid(ERTS_TRACER_PROC(p))); sz_data = 6 + TS_SIZE(p); - ERTS_GET_TRACER_REF(tracer_ref, p->tracer_proc, p->trace_flags); + ERTS_GET_TRACER_REF(tracer_ref, + ERTS_TRACER_PROC(p), + ERTS_TRACE_FLAGS(p)); hp = ERTS_ALLOC_SYSMSG_HEAP(sz_data, &bp, &off_heap, tracer_ref); - mess = TUPLE5(hp, am_trace, calling_pid, am_open, p->id, drv_name); + mess = TUPLE5(hp, am_trace, calling_pid, am_open, p->common.id, drv_name); hp += 6; erts_smp_mtx_lock(&smq_mtx); - if (p->trace_flags & F_TIMESTAMP) { + if (ERTS_TRACE_FLAGS(p) & F_TIMESTAMP) { hp = patch_ts(mess, hp); } - ERTS_ENQ_TRACE_MSG(p->id, tracer_ref, mess, bp); + ERTS_ENQ_TRACE_MSG(p->common.id, tracer_ref, mess, bp); erts_smp_mtx_unlock(&smq_mtx); } @@ -2779,20 +2774,20 @@ trace_port(Port *t_p, Eterm what, Eterm data) { ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(t_p) || erts_thr_progress_is_blocking()); - if (is_internal_port(t_p->tracer_proc)) { + if (is_internal_port(ERTS_TRACER_PROC(t_p))) { #define LOCAL_HEAP_SIZE (5+5) DeclareTmpHeapNoproc(local_heap,LOCAL_HEAP_SIZE); UseTmpHeapNoproc(LOCAL_HEAP_SIZE); hp = local_heap; - mess = TUPLE4(hp, am_trace, t_p->id, what, data); + mess = TUPLE4(hp, am_trace, t_p->common.id, what, data); hp += 5; erts_smp_mtx_lock(&smq_mtx); - if (t_p->trace_flags & F_TIMESTAMP) { + if (ERTS_TRACE_FLAGS(t_p) & F_TIMESTAMP) { hp = patch_ts(mess, hp); } /* No fake schedule */ - send_to_port(NULL, mess, &t_p->tracer_proc, &t_p->trace_flags); + send_to_port(NULL,mess,&ERTS_TRACER_PROC(t_p),&ERTS_TRACE_FLAGS(t_p)); UnUseTmpHeapNoproc(LOCAL_HEAP_SIZE); #undef LOCAL_HEAP_SIZE erts_smp_mtx_unlock(&smq_mtx); @@ -2802,25 +2797,26 @@ trace_port(Port *t_p, Eterm what, Eterm data) { size_t sz_data; ERTS_TRACER_REF_TYPE tracer_ref; - ASSERT(is_internal_pid(t_p->tracer_proc) - && internal_pid_index(t_p->tracer_proc) < erts_max_processes); + ASSERT(is_internal_pid(ERTS_TRACER_PROC(t_p))); sz_data = 5 + TS_SIZE(t_p); - ERTS_GET_TRACER_REF(tracer_ref, t_p->tracer_proc, t_p->trace_flags); + ERTS_GET_TRACER_REF(tracer_ref, + ERTS_TRACER_PROC(t_p), + ERTS_TRACE_FLAGS(t_p)); hp = ERTS_ALLOC_SYSMSG_HEAP(sz_data, &bp, &off_heap, tracer_ref); - mess = TUPLE4(hp, am_trace, t_p->id, what, data); + mess = TUPLE4(hp, am_trace, t_p->common.id, what, data); hp += 5; erts_smp_mtx_lock(&smq_mtx); - if (t_p->trace_flags & F_TIMESTAMP) { + if (ERTS_TRACE_FLAGS(t_p) & F_TIMESTAMP) { hp = patch_ts(mess, hp); } - ERTS_ENQ_TRACE_MSG(t_p->id, tracer_ref, mess, bp); + ERTS_ENQ_TRACE_MSG(t_p->common.id, tracer_ref, mess, bp); erts_smp_mtx_unlock(&smq_mtx); } } @@ -2845,7 +2841,7 @@ trace_sched_ports_where(Port *p, Eterm what, Eterm where) { int ws = 5; Eterm sched_id = am_undefined; - if (is_internal_port(p->tracer_proc)) { + if (is_internal_port(ERTS_TRACER_PROC(p))) { #define LOCAL_HEAP_SIZE (5+6) DeclareTmpHeapNoproc(local_heap,LOCAL_HEAP_SIZE); UseTmpHeapNoproc(LOCAL_HEAP_SIZE); @@ -2860,21 +2856,21 @@ trace_sched_ports_where(Port *p, Eterm what, Eterm where) { #else sched_id = make_small(1); #endif - mess = TUPLE5(hp, am_trace, p->id, what, sched_id, where); + mess = TUPLE5(hp, am_trace, p->common.id, what, sched_id, where); ws = 6; } else { - mess = TUPLE4(hp, am_trace, p->id, what, where); + mess = TUPLE4(hp, am_trace, p->common.id, what, where); ws = 5; } hp += ws; erts_smp_mtx_lock(&smq_mtx); - if (p->trace_flags & F_TIMESTAMP) { + if (ERTS_TRACE_FLAGS(p) & F_TIMESTAMP) { hp = patch_ts(mess, hp); } /* No fake scheduling */ - send_to_port(NULL, mess, &p->tracer_proc, &p->trace_flags); + send_to_port(NULL, mess, &ERTS_TRACER_PROC(p), &ERTS_TRACE_FLAGS(p)); UnUseTmpHeapNoproc(LOCAL_HEAP_SIZE); #undef LOCAL_HEAP_SIZE erts_smp_mtx_unlock(&smq_mtx); @@ -2883,12 +2879,13 @@ trace_sched_ports_where(Port *p, Eterm what, Eterm where) { ErlOffHeap *off_heap; ERTS_TRACER_REF_TYPE tracer_ref; - ASSERT(is_internal_pid(p->tracer_proc) - && internal_pid_index(p->tracer_proc) < erts_max_processes); + ASSERT(is_internal_pid(ERTS_TRACER_PROC(p))); if (IS_TRACED_FL(p, F_TRACE_SCHED_NO)) ws = 6; /* Make place for scheduler id */ - ERTS_GET_TRACER_REF(tracer_ref, p->tracer_proc, p->trace_flags); + ERTS_GET_TRACER_REF(tracer_ref, + ERTS_TRACER_PROC(p), + ERTS_TRACE_FLAGS(p)); hp = ERTS_ALLOC_SYSMSG_HEAP(ws+TS_SIZE(p), &bp, &off_heap, tracer_ref); @@ -2900,19 +2897,19 @@ trace_sched_ports_where(Port *p, Eterm what, Eterm where) { #else sched_id = make_small(1); #endif - mess = TUPLE5(hp, am_trace, p->id, what, sched_id, where); + mess = TUPLE5(hp, am_trace, p->common.id, what, sched_id, where); } else { - mess = TUPLE4(hp, am_trace, p->id, what, where); + mess = TUPLE4(hp, am_trace, p->common.id, what, where); } hp += ws; erts_smp_mtx_lock(&smq_mtx); - if (p->trace_flags & F_TIMESTAMP) { + if (ERTS_TRACE_FLAGS(p) & F_TIMESTAMP) { hp = patch_ts(mess, hp); } - ERTS_ENQ_TRACE_MSG(p->id, tracer_ref, mess, bp); + ERTS_ENQ_TRACE_MSG(p->common.id, tracer_ref, mess, bp); erts_smp_mtx_unlock(&smq_mtx); } } @@ -2948,14 +2945,14 @@ profile_runnable_port(Port *p, Eterm status) { GET_NOW(&Ms, &s, &us); timestamp = TUPLE3(hp, make_small(Ms), make_small(s), make_small(us)); hp += 4; - msg = TUPLE5(hp, am_profile, p->id, status, count, timestamp); hp += 6; + msg = TUPLE5(hp, am_profile, p->common.id, status, count, timestamp); hp += 6; #ifndef ERTS_SMP - profile_send(p->id, msg); + profile_send(p->common.id, msg); UnUseTmpHeapNoproc(LOCAL_HEAP_SIZE); #undef LOCAL_HEAP_SIZE #else - enqueue_sys_msg_unlocked(SYS_MSG_TYPE_SYSPROF, p->id, NIL, msg, bp); + enqueue_sys_msg_unlocked(SYS_MSG_TYPE_SYSPROF, p->common.id, NIL, msg, bp); #endif erts_smp_mtx_unlock(&smq_mtx); } @@ -3002,13 +2999,13 @@ profile_runnable_proc(Process *p, Eterm status){ GET_NOW(&Ms, &s, &us); timestamp = TUPLE3(hp, make_small(Ms), make_small(s), make_small(us)); hp += 4; - msg = TUPLE5(hp, am_profile, p->id, status, where, timestamp); hp += 6; + msg = TUPLE5(hp, am_profile, p->common.id, status, where, timestamp); hp += 6; #ifndef ERTS_SMP - profile_send(p->id, msg); + profile_send(p->common.id, msg); UnUseTmpHeapNoproc(LOCAL_HEAP_SIZE); #undef LOCAL_HEAP_SIZE #else - enqueue_sys_msg_unlocked(SYS_MSG_TYPE_SYSPROF, p->id, NIL, msg, bp); + enqueue_sys_msg_unlocked(SYS_MSG_TYPE_SYSPROF, p->common.id, NIL, msg, bp); #endif erts_smp_mtx_unlock(&smq_mtx); } @@ -3021,16 +3018,19 @@ profile_runnable_proc(Process *p, Eterm status){ void erts_check_my_tracer_proc(Process *p) { - if (is_internal_pid(p->tracer_proc)) { - Process *tracer = erts_pid2proc(p, ERTS_PROC_LOCK_MAIN, - p->tracer_proc, ERTS_PROC_LOCK_STATUS); - int invalid_tracer = !tracer || !(tracer->trace_flags & F_TRACER); + if (is_internal_pid(ERTS_TRACER_PROC(p))) { + Process *tracer = erts_pid2proc(p, + ERTS_PROC_LOCK_MAIN, + ERTS_TRACER_PROC(p), + ERTS_PROC_LOCK_STATUS); + int invalid_tracer = (!tracer + || !(ERTS_TRACE_FLAGS(tracer) & F_TRACER)); if (tracer) erts_smp_proc_unlock(tracer, ERTS_PROC_LOCK_STATUS); if (invalid_tracer) { erts_smp_proc_lock(p, ERTS_PROC_LOCKS_ALL_MINOR); - p->trace_flags &= ~TRACEE_FLAGS; - p->tracer_proc = NIL; + ERTS_TRACE_FLAGS(p) &= ~TRACEE_FLAGS; + ERTS_TRACER_PROC(p) = NIL; erts_smp_proc_unlock(p, ERTS_PROC_LOCKS_ALL_MINOR); } } @@ -3149,14 +3149,15 @@ sys_msg_disp_failure(ErtsSysMsgQ *smqp, Eterm receiver) break; case SYS_MSG_TYPE_SEQTRACE: /* Reset seq_tracer if it hasn't changed */ - erts_smp_mtx_lock(&sys_trace_mtx); + erts_smp_rwmtx_rwlock(&sys_trace_rwmtx); if (system_seq_tracer == receiver) system_seq_tracer = am_false; - erts_smp_mtx_unlock(&sys_trace_mtx); + erts_smp_rwmtx_rwunlock(&sys_trace_rwmtx); break; case SYS_MSG_TYPE_SYSMON: if (receiver == NIL && !erts_system_monitor_long_gc + && !erts_system_monitor_long_schedule && !erts_system_monitor_large_heap && !erts_system_monitor_flags.busy_port && !erts_system_monitor_flags.busy_dist_port) @@ -3327,6 +3328,8 @@ sys_msg_dispatcher_func(void *unused) if (erts_thr_progress_update(NULL)) erts_thr_progress_leader_update(NULL); + ERTS_SCHED_FAIR_YIELD(); + #ifdef DEBUG_PRINTOUTS print_msg_type(smqp); #endif @@ -3374,7 +3377,7 @@ sys_msg_dispatcher_func(void *unused) proc = erts_pid2proc(NULL, 0, receiver, proc_locks); if (!proc || (smqp->type == SYS_MSG_TYPE_TRACE - && !(proc->trace_flags & F_TRACER))) { + && !(ERTS_TRACE_FLAGS(proc) & F_TRACER))) { /* Bad tracer */ #ifdef DEBUG_PRINTOUTS if (smqp->type == SYS_MSG_TYPE_TRACE && proc) @@ -3401,18 +3404,16 @@ sys_msg_dispatcher_func(void *unused) proc = erts_whereis_process(NULL,0,receiver,proc_locks,0); if (!proc) goto failure; - else if (smqp->from == proc->id) + else if (smqp->from == proc->common.id) goto drop_sys_msg; else goto queue_proc_msg; } else if (is_internal_port(receiver)) { - port = erts_id2port(receiver, NULL, 0); - if (INVALID_TRACER_PORT(port, receiver)) { - if (port) - erts_port_release(port); + port = erts_thr_id2port_sflgs(receiver, + ERTS_PORT_SFLGS_INVALID_TRACER_LOOKUP); + if (!port) goto failure; - } else { write_sys_msg_to_port(receiver, port, @@ -3424,7 +3425,7 @@ sys_msg_dispatcher_func(void *unused) #ifdef DEBUG_PRINTOUTS erts_fprintf(stderr, "delivered\n"); #endif - erts_port_release(port); + erts_thr_port_release(port); if (smqp->bp) free_message_buffer(smqp->bp); } @@ -3487,12 +3488,20 @@ static void init_sys_msg_dispatcher(void) { erts_smp_thr_opts_t thr_opts = ERTS_SMP_THR_OPTS_DEFAULT_INITER; +#ifdef __OSE__ + thr_opts.coreNo = 0; +#endif thr_opts.detached = 1; init_smq_element_alloc(); sys_message_queue = NULL; sys_message_queue_end = NULL; erts_smp_cnd_init(&smq_cnd); erts_smp_mtx_init(&smq_mtx, "sys_msg_q"); + +#ifdef ETHR_HAVE_THREAD_NAMES + thr_opts.name = "sys_msg_dispatcher"; +#endif + erts_smp_thr_create(&sys_msg_dispatcher_tid, sys_msg_dispatcher_func, NULL, diff --git a/erts/emulator/beam/erl_trace.h b/erts/emulator/beam/erl_trace.h new file mode 100644 index 0000000000..4f2c70d6e7 --- /dev/null +++ b/erts/emulator/beam/erl_trace.h @@ -0,0 +1,144 @@ +/* + * %CopyrightBegin% + * + * Copyright Ericsson AB 2012-2013. All Rights Reserved. + * + * The contents of this file are subject to the Erlang Public License, + * Version 1.1, (the "License"); you may not use this file except in + * compliance with the License. You should have received a copy of the + * Erlang Public License along with this software. If not, it can be + * retrieved online at http://www.erlang.org/. + * + * Software distributed under the License is distributed on an "AS IS" + * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See + * the License for the specific language governing rights and limitations + * under the License. + * + * %CopyrightEnd% + */ + + +#ifndef ERL_TRACE_H__ +#define ERL_TRACE_H__ + +struct binary; + +/* erl_bif_trace.c */ +Eterm erl_seq_trace_info(Process *p, Eterm arg1); +void erts_system_monitor_clear(Process *c_p); +void erts_system_profile_clear(Process *c_p); + +/* erl_trace.c */ +void erts_init_trace(void); +void erts_trace_check_exiting(Eterm exiting); +Eterm erts_set_system_seq_tracer(Process *c_p, + ErtsProcLocks c_p_locks, + Eterm new); +Eterm erts_get_system_seq_tracer(void); +void erts_change_default_tracing(int setflags, Uint *flagsp, Eterm *tracerp); +void erts_get_default_tracing(Uint *flagsp, Eterm *tracerp); +void erts_set_system_monitor(Eterm monitor); +Eterm erts_get_system_monitor(void); +int erts_is_tracer_proc_valid(Process* p); + +#ifdef ERTS_SMP +void erts_check_my_tracer_proc(Process *); +void erts_block_sys_msg_dispatcher(void); +void erts_release_sys_msg_dispatcher(void); +void erts_foreach_sys_msg_in_q(void (*func)(Eterm, + Eterm, + Eterm, + ErlHeapFragment *)); +void erts_queue_error_logger_message(Eterm, Eterm, ErlHeapFragment *); +#endif + +void erts_send_sys_msg_proc(Eterm, Eterm, Eterm, ErlHeapFragment *); +void trace_send(Process*, Eterm, Eterm); +void trace_receive(Process*, Eterm); +Uint32 erts_call_trace(Process *p, BeamInstr mfa[], struct binary *match_spec, Eterm* args, + int local, Eterm *tracer_pid); +void erts_trace_return(Process* p, BeamInstr* fi, Eterm retval, Eterm *tracer_pid); +void erts_trace_exception(Process* p, BeamInstr mfa[], Eterm class, Eterm value, + Eterm *tracer); +void erts_trace_return_to(Process *p, BeamInstr *pc); +void trace_sched(Process*, Eterm); +void trace_proc(Process*, Process*, Eterm, Eterm); +void trace_proc_spawn(Process*, Eterm pid, Eterm mod, Eterm func, Eterm args); +void save_calls(Process *p, Export *); +void trace_gc(Process *p, Eterm what); +/* port tracing */ +void trace_virtual_sched(Process*, Eterm); +void trace_sched_ports(Port *pp, Eterm); +void trace_sched_ports_where(Port *pp, Eterm, Eterm); +void trace_port(Port *, Eterm what, Eterm data); +void trace_port_open(Port *, Eterm calling_pid, Eterm drv_name); + +/* system_profile */ +void erts_set_system_profile(Eterm profile); +Eterm erts_get_system_profile(void); +void profile_scheduler(Eterm scheduler_id, Eterm); +void profile_scheduler_q(Eterm scheduler_id, Eterm state, Eterm no_schedulers, Uint Ms, Uint s, Uint us); +void profile_runnable_proc(Process* p, Eterm status); +void profile_runnable_port(Port* p, Eterm status); +void erts_system_profile_setup_active_schedulers(void); + +/* system_monitor */ +void monitor_long_gc(Process *p, Uint time); +void monitor_long_schedule_proc(Process *p, BeamInstr *in_i, BeamInstr *out_i, Uint time); +void monitor_long_schedule_port(Port *pp, ErtsPortTaskType type, Uint time); +void monitor_large_heap(Process *p); +void monitor_generic(Process *p, Eterm type, Eterm spec); +Uint erts_trace_flag2bit(Eterm flag); +int erts_trace_flags(Eterm List, + Uint *pMask, Eterm *pTracer, int *pCpuTimestamp); +Eterm erts_bif_trace(int bif_index, Process* p, Eterm* args, BeamInstr *I); + +#ifdef ERTS_SMP +void erts_send_pending_trace_msgs(ErtsSchedulerData *esdp); +#define ERTS_SMP_CHK_PEND_TRACE_MSGS(ESDP) \ +do { \ + if ((ESDP)->pending_trace_msgs) \ + erts_send_pending_trace_msgs((ESDP)); \ +} while (0) +#else +#define ERTS_SMP_CHK_PEND_TRACE_MSGS(ESDP) +#endif + +#define seq_trace_output(token, msg, type, receiver, process) \ +seq_trace_output_generic((token), (msg), (type), (receiver), (process), NIL) +#define seq_trace_output_exit(token, msg, type, receiver, exitfrom) \ +seq_trace_output_generic((token), (msg), (type), (receiver), NULL, (exitfrom)) +void seq_trace_output_generic(Eterm token, Eterm msg, Uint type, + Eterm receiver, Process *process, Eterm exitfrom); + +int seq_trace_update_send(Process *process); + +Eterm erts_seq_trace(Process *process, + Eterm atom_type, Eterm atom_true_or_false, + int build_result); + +struct trace_pattern_flags { + unsigned int breakpoint : 1; /* Set if any other is set */ + unsigned int local : 1; /* Local call trace breakpoint */ + unsigned int meta : 1; /* Metadata trace breakpoint */ + unsigned int call_count : 1; /* Fast call count breakpoint */ + unsigned int call_time : 1; /* Fast call time breakpoint */ +}; +extern const struct trace_pattern_flags erts_trace_pattern_flags_off; +extern int erts_call_time_breakpoint_tracing; +int erts_set_trace_pattern(Process*p, Eterm* mfa, int specified, + struct binary* match_prog_set, + struct binary *meta_match_prog_set, + int on, struct trace_pattern_flags, + Eterm meta_tracer_pid, int is_blocking); +void +erts_get_default_trace_pattern(int *trace_pattern_is_on, + struct binary **match_spec, + struct binary **meta_match_spec, + struct trace_pattern_flags *trace_pattern_flags, + Eterm *meta_tracer_pid); +int erts_is_default_trace_enabled(void); +void erts_bif_trace_init(void); +int erts_finish_breakpointing(void); + +#endif /* ERL_TRACE_H__ */ diff --git a/erts/emulator/beam/erl_unicode.c b/erts/emulator/beam/erl_unicode.c index 26ac231ddb..f8e1431a53 100644 --- a/erts/emulator/beam/erl_unicode.c +++ b/erts/emulator/beam/erl_unicode.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 2008-2012. All Rights Reserved. + * Copyright Ericsson AB 2008-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -77,66 +77,25 @@ void erts_init_unicode(void) { max_loop_limit = CONTEXT_REDS * LOOP_FACTOR; /* Non visual BIFs to trap to. */ - memset(&characters_to_utf8_trap_exp, 0, sizeof(Export)); - characters_to_utf8_trap_exp.address = - &characters_to_utf8_trap_exp.code[3]; - characters_to_utf8_trap_exp.code[0] = am_erlang; - characters_to_utf8_trap_exp.code[1] = - am_atom_put("characters_to_utf8_trap",23); - characters_to_utf8_trap_exp.code[2] = 3; - characters_to_utf8_trap_exp.code[3] = - (BeamInstr) em_apply_bif; - characters_to_utf8_trap_exp.code[4] = - (BeamInstr) &characters_to_utf8_trap; - - memset(&characters_to_list_trap_1_exp, 0, sizeof(Export)); - characters_to_list_trap_1_exp.address = - &characters_to_list_trap_1_exp.code[3]; - characters_to_list_trap_1_exp.code[0] = am_erlang; - characters_to_list_trap_1_exp.code[1] = - am_atom_put("characters_to_list_trap_1",25); - characters_to_list_trap_1_exp.code[2] = 3; - characters_to_list_trap_1_exp.code[3] = - (BeamInstr) em_apply_bif; - characters_to_list_trap_1_exp.code[4] = - (BeamInstr) &characters_to_list_trap_1; - - memset(&characters_to_list_trap_2_exp, 0, sizeof(Export)); - characters_to_list_trap_2_exp.address = - &characters_to_list_trap_2_exp.code[3]; - characters_to_list_trap_2_exp.code[0] = am_erlang; - characters_to_list_trap_2_exp.code[1] = - am_atom_put("characters_to_list_trap_2",25); - characters_to_list_trap_2_exp.code[2] = 3; - characters_to_list_trap_2_exp.code[3] = - (BeamInstr) em_apply_bif; - characters_to_list_trap_2_exp.code[4] = - (BeamInstr) &characters_to_list_trap_2; - - - memset(&characters_to_list_trap_3_exp, 0, sizeof(Export)); - characters_to_list_trap_3_exp.address = - &characters_to_list_trap_3_exp.code[3]; - characters_to_list_trap_3_exp.code[0] = am_erlang; - characters_to_list_trap_3_exp.code[1] = - am_atom_put("characters_to_list_trap_3",25); - characters_to_list_trap_3_exp.code[2] = 3; - characters_to_list_trap_3_exp.code[3] = - (BeamInstr) em_apply_bif; - characters_to_list_trap_3_exp.code[4] = - (BeamInstr) &characters_to_list_trap_3; - - memset(&characters_to_list_trap_4_exp, 0, sizeof(Export)); - characters_to_list_trap_4_exp.address = - &characters_to_list_trap_4_exp.code[3]; - characters_to_list_trap_4_exp.code[0] = am_erlang; - characters_to_list_trap_4_exp.code[1] = - am_atom_put("characters_to_list_trap_4",25); - characters_to_list_trap_4_exp.code[2] = 1; - characters_to_list_trap_4_exp.code[3] = - (BeamInstr) em_apply_bif; - characters_to_list_trap_4_exp.code[4] = - (BeamInstr) &characters_to_list_trap_4; + erts_init_trap_export(&characters_to_utf8_trap_exp, + am_erlang, am_atom_put("characters_to_utf8_trap",23), 3, + &characters_to_utf8_trap); + + erts_init_trap_export(&characters_to_list_trap_1_exp, + am_erlang, am_atom_put("characters_to_list_trap_1",25), 3, + &characters_to_list_trap_1); + + erts_init_trap_export(&characters_to_list_trap_2_exp, + am_erlang, am_atom_put("characters_to_list_trap_2",25), 3, + &characters_to_list_trap_2); + + erts_init_trap_export(&characters_to_list_trap_3_exp, + am_erlang, am_atom_put("characters_to_list_trap_3",25), 3, + &characters_to_list_trap_3); + + erts_init_trap_export(&characters_to_list_trap_4_exp, + am_erlang, am_atom_put("characters_to_list_trap_4",25), 1, + &characters_to_list_trap_4); c_to_b_int_trap_exportp = erts_export_put(am_unicode,am_characters_to_binary_int,2); c_to_l_int_trap_exportp = erts_export_put(am_unicode,am_characters_to_list_int,2); @@ -765,7 +724,7 @@ L_Again: /* Restart with sublist, old listend was pushed on stack */ hp = HAlloc(p, 2); obj = CDR(objp); ioterm = CONS(hp, rest_term, obj); - //(*left) = 0; + /* (*left) = 0; */ goto done; } if (rest_term != NIL) { @@ -1195,15 +1154,24 @@ BIF_RETTYPE unicode_characters_to_list_2(BIF_ALIST_2) * When input to characters_to_list is a plain binary and the format is 'unicode', we do * a faster analyze and size count with this function. */ -int erts_analyze_utf8(byte *source, Uint size, - byte **err_pos, Uint *num_chars, int *left) +static ERTS_INLINE int +analyze_utf8(byte *source, Uint size, byte **err_pos, Uint *num_chars, int *left, + Sint *num_latin1_chars, Uint max_chars) { + Uint latin1_count; + int is_latin1; *err_pos = source; + if (num_latin1_chars) { + is_latin1 = 1; + latin1_count = 0; + } *num_chars = 0; while (size) { if (((*source) & ((byte) 0x80)) == 0) { source++; - --size; + --size; + if (num_latin1_chars) + latin1_count++; } else if (((*source) & ((byte) 0xE0)) == 0xC0) { if (size < 2) { return ERTS_UTF8_INCOMPLETE; @@ -1212,6 +1180,11 @@ int erts_analyze_utf8(byte *source, Uint size, ((*source) < 0xC2) /* overlong */) { return ERTS_UTF8_ERROR; } + if (num_latin1_chars) { + latin1_count++; + if ((source[0] & ((byte) 0xFC)) != ((byte) 0xC0)) + is_latin1 = 0; + } source += 2; size -= 2; } else if (((*source) & ((byte) 0xF0)) == 0xE0) { @@ -1229,6 +1202,8 @@ int erts_analyze_utf8(byte *source, Uint size, } source += 3; size -= 3; + if (num_latin1_chars) + is_latin1 = 0; } else if (((*source) & ((byte) 0xF8)) == 0xF0) { if (size < 4) { return ERTS_UTF8_INCOMPLETE; @@ -1246,21 +1221,40 @@ int erts_analyze_utf8(byte *source, Uint size, } source += 4; size -= 4; + if (num_latin1_chars) + is_latin1 = 0; } else { return ERTS_UTF8_ERROR; } ++(*num_chars); *err_pos = source; - if (left && --(*left) <= 0) { + if (max_chars && size > 0 && *num_chars == max_chars) + return ERTS_UTF8_OK_MAX_CHARS; + if (left && --(*left) <= 0 && size) { return ERTS_UTF8_ANALYZE_MORE; } } + if (num_latin1_chars) + *num_latin1_chars = is_latin1 ? latin1_count : -1; return ERTS_UTF8_OK; } +int erts_analyze_utf8(byte *source, Uint size, + byte **err_pos, Uint *num_chars, int *left) +{ + return analyze_utf8(source, size, err_pos, num_chars, left, NULL, 0); +} + +int erts_analyze_utf8_x(byte *source, Uint size, + byte **err_pos, Uint *num_chars, int *left, + Sint *num_latin1_chars, Uint max_chars) +{ + return analyze_utf8(source, size, err_pos, num_chars, left, num_latin1_chars, max_chars); +} + /* * No errors should be able to occur - no overlongs, no malformed, no nothing - */ + */ static Eterm do_utf8_to_list(Process *p, Uint num, byte *bytes, Uint sz, Uint left, Uint *num_built, Uint *num_eaten, Eterm tail) @@ -1316,6 +1310,12 @@ static Eterm do_utf8_to_list(Process *p, Uint num, byte *bytes, Uint sz, return ret; } +Eterm erts_utf8_to_list(Process *p, Uint num, byte *bytes, Uint sz, Uint left, + Uint *num_built, Uint *num_eaten, Eterm tail) +{ + return do_utf8_to_list(p, num, bytes, sz, left, num_built, num_eaten, tail); +} + static int is_candidate(Uint cp) { int index,pos; @@ -1476,6 +1476,9 @@ static Eterm do_utf8_to_list_normalize(Process *p, Uint num, byte *bytes, Uint s Uint16 savepoints[4]; int numpoints = 0; + if (num == 0) + return NIL; + ASSERT(num > 0); hp = HAlloc(p,num * 2); /* May be to much */ @@ -1723,14 +1726,14 @@ static BIF_RETTYPE do_bif_utf8_to_list(Process *p, if (b_sz) { ErlSubBin *sb; Eterm orig; - ERTS_DECLARE_DUMMY(Uint offset); + Uint offset; ASSERT(state != ERTS_UTF8_OK); hp = HAlloc(p, ERL_SUB_BIN_SIZE); sb = (ErlSubBin *) hp; ERTS_GET_REAL_BIN(orig_bin, orig, offset, bitoffs, bitsize); sb->thing_word = HEADER_SUB_BIN; sb->size = b_sz; - sb->offs = num_bytes_to_process + num_processed_bytes; + sb->offs = offset + num_bytes_to_process + num_processed_bytes; sb->orig = orig; sb->bitoffs = bitoffs; sb->bitsize = bitsize; @@ -1853,31 +1856,25 @@ BIF_RETTYPE atom_to_binary_2(BIF_ALIST_2) ap = atom_tab(atom_val(BIF_ARG_1)); if (BIF_ARG_2 == am_latin1) { - BIF_RET(new_binary(BIF_P, ap->name, ap->len)); - } else if (BIF_ARG_2 == am_utf8 || BIF_ARG_2 == am_unicode) { - int bin_size = 0; - int i; Eterm bin_term; - byte* bin_p; - for (i = 0; i < ap->len; i++) { - bin_size += (ap->name[i] >= 0x80) ? 2 : 1; + if (ap->latin1_chars < 0) { + goto error; } - if (bin_size == ap->len) { - BIF_RET(new_binary(BIF_P, ap->name, ap->len)); + if (ap->latin1_chars == ap->len) { + bin_term = new_binary(BIF_P, ap->name, ap->len); } - bin_term = new_binary(BIF_P, 0, bin_size); - bin_p = binary_bytes(bin_term); - for (i = 0; i < ap->len; i++) { - byte b = ap->name[i]; - if (b < 0x80) { - *bin_p++ = b; - } else { - *bin_p++ = 0xC0 | (b >> 6); - *bin_p++ = 0x80 | (b & 0x3F); - } + else { + byte* bin_p; + int dbg_sz; + bin_term = new_binary(BIF_P, 0, ap->latin1_chars); + bin_p = binary_bytes(bin_term); + dbg_sz = erts_utf8_to_latin1(bin_p, ap->name, ap->len); + ASSERT(dbg_sz == ap->latin1_chars); (void)dbg_sz; } BIF_RET(bin_term); + } else if (BIF_ARG_2 == am_utf8 || BIF_ARG_2 == am_unicode) { + BIF_RET(new_binary(BIF_P, ap->name, ap->len)); } else { error: BIF_ERROR(BIF_P, BADARG); @@ -1885,118 +1882,78 @@ BIF_RETTYPE atom_to_binary_2(BIF_ALIST_2) } static BIF_RETTYPE -binary_to_atom(Process* p, Eterm bin, Eterm enc, int must_exist) +binary_to_atom(Process* proc, Eterm bin, Eterm enc, int must_exist) { byte* bytes; byte *temp_alloc = NULL; Uint bin_size; if ((bytes = erts_get_aligned_binary_bytes(bin, &temp_alloc)) == 0) { - BIF_ERROR(p, BADARG); + BIF_ERROR(proc, BADARG); } bin_size = binary_size(bin); if (enc == am_latin1) { Eterm a; - if (bin_size > MAX_ATOM_LENGTH) { + if (bin_size > MAX_ATOM_CHARACTERS) { system_limit: erts_free_aligned_binary_bytes(temp_alloc); - BIF_ERROR(p, SYSTEM_LIMIT); + BIF_ERROR(proc, SYSTEM_LIMIT); } if (!must_exist) { - a = am_atom_put((char *)bytes, bin_size); - erts_free_aligned_binary_bytes(temp_alloc); + a = erts_atom_put((byte *) bytes, + bin_size, + ERTS_ATOM_ENC_LATIN1, + 0); + erts_free_aligned_binary_bytes(temp_alloc); + if (is_non_value(a)) + goto badarg; BIF_RET(a); - } else if (erts_atom_get((char *)bytes, bin_size, &a)) { + } else if (erts_atom_get((char *)bytes, bin_size, &a, ERTS_ATOM_ENC_LATIN1)) { erts_free_aligned_binary_bytes(temp_alloc); BIF_RET(a); } else { goto badarg; } } else if (enc == am_utf8 || enc == am_unicode) { - char *buf; - char *dst; - int i; - int num_chars; Eterm res; + Uint num_chars = 0; + const byte* p = bytes; + Uint left = bin_size; - if (bin_size > 2*MAX_ATOM_LENGTH) { - byte* err_pos; - Uint n; - int reds_left = bin_size+1; /* Number of reductions left. */ - - if (erts_analyze_utf8(bytes, bin_size, &err_pos, - &n, &reds_left) == ERTS_UTF8_OK) { - /* - * Correct UTF-8 encoding, but too many characters to - * fit in an atom. - */ + while (left) { + if (++num_chars > MAX_ATOM_CHARACTERS) { goto system_limit; - } else { - /* - * Something wrong in the UTF-8 encoding or Unicode code - * points > 255. - */ - goto badarg; } - } - - /* - * Allocate a temporary buffer the same size as the binary, - * so that we don't need an extra overflow test. - */ - buf = (char *) erts_alloc(ERTS_ALC_T_TMP, bin_size); - dst = buf; - for (i = 0; i < bin_size; i++) { - int c = bytes[i]; - if (c < 0x80) { - *dst++ = c; - } else if (i < bin_size-1) { - int c2; - if ((c & 0xE0) != 0xC0) { - goto free_badarg; - } - i++; - c = (c & 0x3F) << 6; - c2 = bytes[i]; - if ((c2 & 0xC0) != 0x80) { - goto free_badarg; - } - c = c | (c2 & 0x3F); - if (0x80 <= c && c < 256) { - *dst++ = c; - } else { - goto free_badarg; - } - } else { - free_badarg: - erts_free(ERTS_ALC_T_TMP, (void *) buf); - goto badarg; + if ((p[0] & 0x80) == 0) { + ++p; + --left; } + else if (left >= 2 + && (p[0] & 0xFE) == 0xC2 /* only allow latin1 subset */ + && (p[1] & 0xC0) == 0x80) { + p += 2; + left -= 2; + } + else goto badarg; } - num_chars = dst - buf; - if (num_chars > MAX_ATOM_LENGTH) { - erts_free(ERTS_ALC_T_TMP, (void *) buf); - goto system_limit; - } + if (!must_exist) { - res = am_atom_put(buf, num_chars); - erts_free(ERTS_ALC_T_TMP, (void *) buf); - erts_free_aligned_binary_bytes(temp_alloc); - BIF_RET(res); - } else { - int exists = erts_atom_get(buf, num_chars, &res); - erts_free(ERTS_ALC_T_TMP, (void *) buf); - if (exists) { - erts_free_aligned_binary_bytes(temp_alloc); - BIF_RET(res); - } else { - goto badarg; - } + res = erts_atom_put((byte *) bytes, + bin_size, + ERTS_ATOM_ENC_UTF8, + 0); + } + else if (!erts_atom_get((char*)bytes, bin_size, &res, ERTS_ATOM_ENC_UTF8)) { + goto badarg; } + erts_free_aligned_binary_bytes(temp_alloc); + if (is_non_value(res)) + goto badarg; + BIF_RET(res); } else { badarg: erts_free_aligned_binary_bytes(temp_alloc); - BIF_ERROR(p, BADARG); + BIF_ERROR(proc, BADARG); } } @@ -2027,9 +1984,21 @@ BIF_RETTYPE binary_to_existing_atom_2(BIF_ALIST_2) * string routines, that will certainly fail on some OS. */ -char *erts_convert_filename_to_native(Eterm name, char *statbuf, size_t statbuf_size, ErtsAlcType_t alloc_type, int allow_empty, int allow_atom, Sint *used) +char *erts_convert_filename_to_native(Eterm name, char *statbuf, size_t statbuf_size, + ErtsAlcType_t alloc_type, int allow_empty, + int allow_atom, Sint *used) { int encoding = erts_get_native_filename_encoding(); + return erts_convert_filename_to_encoding(name, statbuf, statbuf_size, alloc_type, + allow_empty, allow_atom, encoding, + used, 0); +} + +char *erts_convert_filename_to_encoding(Eterm name, char *statbuf, size_t statbuf_size, + ErtsAlcType_t alloc_type, int allow_empty, + int allow_atom, int encoding, Sint *used, + Uint extra) +{ char* name_buf = NULL; if ((allow_atom && is_atom(name)) || @@ -2041,13 +2010,14 @@ char *erts_convert_filename_to_native(Eterm name, char *statbuf, size_t statbuf_ } if (encoding == ERL_FILENAME_WIN_WCHAR) { need += 2; + extra *= 2; } else { ++need; } if (used) *used = (Sint) need; - if (need > statbuf_size) { - name_buf = (char *) erts_alloc(alloc_type, need); + if (need+extra > statbuf_size) { + name_buf = (char *) erts_alloc(alloc_type, need+extra); } else { name_buf = statbuf; } @@ -2059,52 +2029,27 @@ char *erts_convert_filename_to_native(Eterm name, char *statbuf, size_t statbuf_ } else if (is_binary(name)) { byte *temp_alloc = NULL; byte *bytes; - byte *err_pos; - Uint size,num_chars; + Uint size; size = binary_size(name); bytes = erts_get_aligned_binary_bytes(name, &temp_alloc); + if (encoding != ERL_FILENAME_WIN_WCHAR) { /*Add 0 termination only*/ if (used) *used = (Sint) size+1; - if (size+1 > statbuf_size) { - name_buf = (char *) erts_alloc(alloc_type, size+1); + if (size+1+extra > statbuf_size) { + name_buf = (char *) erts_alloc(alloc_type, size+1+extra); } else { name_buf = statbuf; } memcpy(name_buf,bytes,size); name_buf[size]=0; - } else if (erts_analyze_utf8(bytes,size,&err_pos,&num_chars,NULL) != ERTS_UTF8_OK || - erts_get_user_requested_filename_encoding() == ERL_FILENAME_LATIN1) { - byte *p; - /* What to do now? Maybe latin1, so just take byte for byte instead */ - if (used) - *used = (Sint) (size+1)*2; - if ((size+1)*2 > statbuf_size) { - name_buf = (char *) erts_alloc(alloc_type, (size+1)*2); - } else { - name_buf = statbuf; - } - p = (byte *) name_buf; - while (size--) { - *p++ = *bytes++; - *p++ = 0; - } - *p++ = 0; - *p++ = 0; - } else { /* WIN_WCHAR and valid UTF8 */ - if (used) - *used = (Sint) (num_chars+1)*2; - if ((num_chars+1)*2 > statbuf_size) { - name_buf = (char *) erts_alloc(alloc_type, (num_chars+1)*2); - } else { - name_buf = statbuf; - } - erts_copy_utf8_to_utf16_little((byte *) name_buf, bytes, num_chars); - name_buf[num_chars*2] = 0; - name_buf[num_chars*2+1] = 0; - } + } else { + name_buf = erts_convert_filename_to_wchar(bytes, size, + statbuf, statbuf_size, + alloc_type, used, extra); + } erts_free_aligned_binary_bytes(temp_alloc); } else { return NULL; @@ -2112,6 +2057,50 @@ char *erts_convert_filename_to_native(Eterm name, char *statbuf, size_t statbuf_ return name_buf; } +char* erts_convert_filename_to_wchar(byte* bytes, Uint size, + char *statbuf, size_t statbuf_size, + ErtsAlcType_t alloc_type, Sint* used, + Uint extra_wchars) +{ + byte *err_pos; + Uint num_chars; + char* name_buf = NULL; + Sint need; + char *p; + + if (erts_analyze_utf8(bytes,size,&err_pos,&num_chars,NULL) != ERTS_UTF8_OK || + erts_get_user_requested_filename_encoding() == ERL_FILENAME_LATIN1) { + + /* What to do now? Maybe latin1, so just take byte for byte instead */ + need = (Sint) (size + extra_wchars + 1) * 2; + if (need > statbuf_size) { + name_buf = (char *) erts_alloc(alloc_type, need); + } else { + name_buf = statbuf; + } + p = name_buf; + while (size--) { + *p++ = *bytes++; + *p++ = 0; + } + } else { /* WIN_WCHAR and valid UTF8 */ + need = (Sint) (num_chars + extra_wchars + 1) * 2; + if (need > statbuf_size) { + name_buf = (char *) erts_alloc(alloc_type, need); + } else { + name_buf = statbuf; + } + erts_copy_utf8_to_utf16_little((byte *) name_buf, bytes, num_chars); + p = name_buf + num_chars*2; + } + *p++ = 0; + *p++ = 0; + if (used) + *used = p - name_buf; + return name_buf; +} + + static int filename_len_16bit(byte *str) { byte *p = str; @@ -2137,6 +2126,8 @@ Eterm erts_convert_native_to_filename(Process *p, byte *bytes) mac = 1; case ERL_FILENAME_UTF8: size = strlen((char *) bytes); + if (size == 0) + return NIL; if (erts_analyze_utf8(bytes,size,&err_pos,&num_chars,NULL) != ERTS_UTF8_OK) { goto noconvert; } @@ -2191,16 +2182,31 @@ Sint erts_native_filename_need(Eterm ioterm, int encoding) ap = atom_tab(atom_val(ioterm)); switch (encoding) { case ERL_FILENAME_LATIN1: - need = ap->len; + need = ap->latin1_chars; /* May be -1 */ break; case ERL_FILENAME_UTF8_MAC: case ERL_FILENAME_UTF8: - for (i = 0; i < ap->len; i++) { - need += (ap->name[i] >= 0x80) ? 2 : 1; - } + need = ap->len; break; case ERL_FILENAME_WIN_WCHAR: - need = 2*(ap->len); + if (ap->latin1_chars >= 0) { + need = 2* ap->latin1_chars; + } + else { + for (i = 0; i < ap->len; ) { + if (ap->name[i] < 0x80) { + i++; + } else if (ap->name[i] < 0xE0) { + i += 2; + } else if (ap->name[i] < 0xF0) { + i += 3; + } else { + need = -1; + break; + } + need += 2; + } + } break; default: need = -1; @@ -2330,26 +2336,36 @@ void erts_native_filename_put(Eterm ioterm, int encoding, byte *p) switch (encoding) { case ERL_FILENAME_LATIN1: for (i = 0; i < ap->len; i++) { - *p++ = ap->name[i]; - } - break; - case ERL_FILENAME_UTF8_MAC: - case ERL_FILENAME_UTF8: - for (i = 0; i < ap->len; i++) { - if(ap->name[i] < 0x80) { + if (ap->name[i] < 0x80) { *p++ = ap->name[i]; } else { - *p++ = (((ap->name[i]) >> 6) | ((byte) 0xC0)); - *p++ = (((ap->name[i]) & 0x3F) | ((byte) 0x80)); + ASSERT(ap->name[i] < 0xC4); + *p++ = ((ap->name[i] & 3) << 6) | (ap->name[i+1] & 0x3F); + i++; } } break; + case ERL_FILENAME_UTF8_MAC: + case ERL_FILENAME_UTF8: + sys_memcpy(p, ap->name, ap->len); + break; case ERL_FILENAME_WIN_WCHAR: for (i = 0; i < ap->len; i++) { /* Little endian */ - *p++ = ap->name[i]; - *p++ = 0; - } + if (ap->name[i] < 0x80) { + *p++ = ap->name[i]; + *p++ = 0; + } else if (ap->name[i] < 0xE0) { + *p++ = ((ap->name[i] & 3) << 6) | (ap->name[i+1] & 0x3F); + *p++ = ((ap->name[i] & 0x1C) >> 2); + i++; + } else { + ASSERT(ap->name[i] < 0xF0); + *p++ = ((ap->name[i+1] & 3) << 6) | (ap->name[i+2] & 0x3C); + *p++ = ((ap->name[i] & 0xF) << 4) | ((ap->name[i+1] & 0x3C) >> 2); + i += 2; + } + } break; default: ASSERT(0); @@ -2619,8 +2635,20 @@ BIF_RETTYPE prim_file_internal_native2name_1(BIF_ALIST_1) case ERL_FILENAME_UTF8: bytes = erts_get_aligned_binary_bytes(BIF_ARG_1, &temp_alloc); if (erts_analyze_utf8(bytes,size,&err_pos,&num_chars,NULL) != ERTS_UTF8_OK) { + Eterm *hp = HAlloc(BIF_P,3); + Eterm warn_type = NIL; erts_free_aligned_binary_bytes(temp_alloc); - goto noconvert; + switch (erts_get_filename_warning_type()) { + case ERL_FILENAME_WARNING_IGNORE: + warn_type = am_ignore; + break; + case ERL_FILENAME_WARNING_ERROR: + warn_type = am_error; + break; + default: + warn_type = am_warning; + } + BIF_RET(TUPLE2(hp,am_error,warn_type)); } num_built = 0; num_eaten = 0; @@ -2653,9 +2681,8 @@ BIF_RETTYPE prim_file_internal_native2name_1(BIF_ALIST_1) erts_free_aligned_binary_bytes(temp_alloc); BIF_RET(ret); default: - goto noconvert; + break; } - noconvert: BIF_RET(BIF_ARG_1); } @@ -2692,6 +2719,52 @@ BIF_RETTYPE prim_file_internal_normalize_utf8_1(BIF_ALIST_1) BIF_RET(ret); } +BIF_RETTYPE prim_file_is_translatable_1(BIF_ALIST_1) +{ + ERTS_DECLARE_DUMMY(Eterm real_bin); + ERTS_DECLARE_DUMMY(Uint offset); + Uint size; + Uint num_chars; + Uint bitsize; + ERTS_DECLARE_DUMMY(Uint bitoffs); + byte *temp_alloc = NULL; + byte *bytes; + byte *err_pos; + int status; + + if (is_not_binary(BIF_ARG_1)) { + BIF_ERROR(BIF_P,BADARG); + } + size = binary_size(BIF_ARG_1); + ERTS_GET_REAL_BIN(BIF_ARG_1, real_bin, offset, bitoffs, bitsize); + if (bitsize != 0) { + BIF_ERROR(BIF_P,BADARG); + } + if (size == 0) { + BIF_RET(am_true); + } + + /* + * If the encoding is latin1, the pathname is always translatable. + */ + switch (erts_get_native_filename_encoding()) { + case ERL_FILENAME_LATIN1: + BIF_RET(am_true); + case ERL_FILENAME_WIN_WCHAR: + if (erts_get_user_requested_filename_encoding() == ERL_FILENAME_LATIN1) { + BIF_RET(am_true); + } + } + + /* + * Check whether the binary contains legal UTF-8 sequences. + */ + bytes = erts_get_aligned_binary_bytes(BIF_ARG_1, &temp_alloc); + status = erts_analyze_utf8(bytes, size, &err_pos, &num_chars, NULL); + erts_free_aligned_binary_bytes(temp_alloc); + BIF_RET(status == ERTS_UTF8_OK ? am_true : am_false); +} + BIF_RETTYPE file_native_name_encoding_0(BIF_ALIST_0) { switch (erts_get_native_filename_encoding()) { @@ -2711,3 +2784,36 @@ BIF_RETTYPE file_native_name_encoding_0(BIF_ALIST_0) } } +int erts_utf8_to_latin1(byte* dest, const byte* source, int slen) +{ + /* + * Assumes source contains valid utf8 that can be encoded as latin1, + * and that dest has enough room. + */ + byte* dp = dest; + + while (slen > 0) { + if ((source[0] & 0x80) == 0) { + *dp++ = *source++; + --slen; + } + else { + ASSERT(slen > 1); + ASSERT((source[0] & 0xFE) == 0xC2); + ASSERT((source[1] & 0xC0) == 0x80); + *dp++ = (char) ((source[0] << 6) | (source[1] & 0x3F)); + source += 2; + slen -= 2; + } + } + return dp - dest; +} + +BIF_RETTYPE io_printable_range_0(BIF_ALIST_0) +{ + if (erts_get_printable_characters() == ERL_PRINTABLE_CHARACTERS_UNICODE) { + BIF_RET(am_unicode); + } else { + BIF_RET(am_latin1); + } +} diff --git a/erts/emulator/beam/erl_utils.h b/erts/emulator/beam/erl_utils.h new file mode 100644 index 0000000000..0807649ea1 --- /dev/null +++ b/erts/emulator/beam/erl_utils.h @@ -0,0 +1,239 @@ +/* + * %CopyrightBegin% + * + * Copyright Ericsson AB 2012-2014. All Rights Reserved. + * + * The contents of this file are subject to the Erlang Public License, + * Version 1.1, (the "License"); you may not use this file except in + * compliance with the License. You should have received a copy of the + * Erlang Public License along with this software. If not, it can be + * retrieved online at http://www.erlang.org/. + * + * Software distributed under the License is distributed on an "AS IS" + * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See + * the License for the specific language governing rights and limitations + * under the License. + * + * %CopyrightEnd% + */ + +#ifndef ERL_UTILS_H__ +#define ERL_UTILS_H__ + +#include "sys.h" +#include "erl_smp.h" +#include "erl_printf.h" + +struct process; + +typedef struct { +#ifdef DEBUG + int smp_api; +#endif + union { + Uint64 not_atomic; +#ifdef ARCH_64 + erts_atomic_t atomic; +#else + erts_dw_atomic_t atomic; +#endif + } counter; +} erts_interval_t; + +void erts_interval_init(erts_interval_t *); +void erts_smp_interval_init(erts_interval_t *); +Uint64 erts_step_interval_nob(erts_interval_t *); +Uint64 erts_step_interval_relb(erts_interval_t *); +Uint64 erts_smp_step_interval_nob(erts_interval_t *); +Uint64 erts_smp_step_interval_relb(erts_interval_t *); +Uint64 erts_ensure_later_interval_nob(erts_interval_t *, Uint64); +Uint64 erts_ensure_later_interval_acqb(erts_interval_t *, Uint64); +Uint64 erts_smp_ensure_later_interval_nob(erts_interval_t *, Uint64); +Uint64 erts_smp_ensure_later_interval_acqb(erts_interval_t *, Uint64); +#ifdef ARCH_32 +ERTS_GLB_INLINE Uint64 erts_interval_dw_aint_to_val__(erts_dw_aint_t *); +#endif +ERTS_GLB_INLINE Uint64 erts_current_interval_nob__(erts_interval_t *); +ERTS_GLB_INLINE Uint64 erts_current_interval_acqb__(erts_interval_t *); +ERTS_GLB_INLINE Uint64 erts_current_interval_nob(erts_interval_t *); +ERTS_GLB_INLINE Uint64 erts_current_interval_acqb(erts_interval_t *); +ERTS_GLB_INLINE Uint64 erts_smp_current_interval_nob(erts_interval_t *); +ERTS_GLB_INLINE Uint64 erts_smp_current_interval_acqb(erts_interval_t *); + +#if ERTS_GLB_INLINE_INCL_FUNC_DEF + +#ifdef ARCH_32 + +ERTS_GLB_INLINE Uint64 +erts_interval_dw_aint_to_val__(erts_dw_aint_t *dw) +{ +#ifdef ETHR_SU_DW_NAINT_T__ + return (Uint64) dw->dw_sint; +#else + Uint64 res; + res = (Uint64) ((Uint32) dw->sint[ERTS_DW_AINT_HIGH_WORD]); + res <<= 32; + res |= (Uint64) ((Uint32) dw->sint[ERTS_DW_AINT_LOW_WORD]); + return res; +#endif +} + +#endif + +ERTS_GLB_INLINE Uint64 +erts_current_interval_nob__(erts_interval_t *icp) +{ +#ifdef ARCH_64 + return (Uint64) erts_atomic_read_nob(&icp->counter.atomic); +#else + erts_dw_aint_t dw; + erts_dw_atomic_read_nob(&icp->counter.atomic, &dw); + return erts_interval_dw_aint_to_val__(&dw); +#endif +} + +ERTS_GLB_INLINE Uint64 +erts_current_interval_acqb__(erts_interval_t *icp) +{ +#ifdef ARCH_64 + return (Uint64) erts_atomic_read_acqb(&icp->counter.atomic); +#else + erts_dw_aint_t dw; + erts_dw_atomic_read_acqb(&icp->counter.atomic, &dw); + return erts_interval_dw_aint_to_val__(&dw); +#endif +} + +ERTS_GLB_INLINE Uint64 +erts_current_interval_nob(erts_interval_t *icp) +{ + ASSERT(!icp->smp_api); + return erts_current_interval_nob__(icp); +} + +ERTS_GLB_INLINE Uint64 +erts_current_interval_acqb(erts_interval_t *icp) +{ + ASSERT(!icp->smp_api); + return erts_current_interval_acqb__(icp); +} + +ERTS_GLB_INLINE Uint64 +erts_smp_current_interval_nob(erts_interval_t *icp) +{ + ASSERT(icp->smp_api); +#ifdef ERTS_SMP + return erts_current_interval_nob__(icp); +#else + return icp->counter.not_atomic; +#endif +} + +ERTS_GLB_INLINE Uint64 +erts_smp_current_interval_acqb(erts_interval_t *icp) +{ + ASSERT(icp->smp_api); +#ifdef ERTS_SMP + return erts_current_interval_acqb__(icp); +#else + return icp->counter.not_atomic; +#endif +} + +#endif /* ERTS_GLB_INLINE_INCL_FUNC_DEF */ + +/* + * To be used to silence unused result warnings, but do not abuse it. + */ +void erts_silence_warn_unused_result(long unused); + + +int erts_fit_in_bits_int64(Sint64); +int erts_fit_in_bits_int32(Sint32); +int erts_list_length(Eterm); +int erts_is_builtin(Eterm, Eterm, int); +Uint32 make_broken_hash(Eterm); +Uint32 block_hash(byte *, unsigned, Uint32); +Uint32 make_hash2(Eterm); +Uint32 make_hash(Eterm); + +void erts_save_emu_args(int argc, char **argv); +Eterm erts_get_emu_args(struct process *c_p); +Eterm erts_get_ethread_info(struct process * c_p); + +Eterm erts_bld_atom(Uint **hpp, Uint *szp, char *str); +Eterm erts_bld_uint(Uint **hpp, Uint *szp, Uint ui); +Eterm erts_bld_uword(Uint **hpp, Uint *szp, UWord uw); +Eterm erts_bld_uint64(Uint **hpp, Uint *szp, Uint64 ui64); +Eterm erts_bld_sint64(Uint **hpp, Uint *szp, Sint64 si64); +Eterm erts_bld_cons(Uint **hpp, Uint *szp, Eterm car, Eterm cdr); +Eterm erts_bld_tuple(Uint **hpp, Uint *szp, Uint arity, ...); +#define erts_bld_tuple2(H,S,E1,E2) erts_bld_tuple(H,S,2,E1,E2) +#define erts_bld_tuple3(H,S,E1,E2,E3) erts_bld_tuple(H,S,3,E1,E2,E3) +#define erts_bld_tuple4(H,S,E1,E2,E3,E4) erts_bld_tuple(H,S,4,E1,E2,E3,E4) +#define erts_bld_tuple5(H,S,E1,E2,E3,E4,E5) erts_bld_tuple(H,S,5,E1,E2,E3,E4,E5) +Eterm erts_bld_tuplev(Uint **hpp, Uint *szp, Uint arity, Eterm terms[]); +Eterm erts_bld_string_n(Uint **hpp, Uint *szp, const char *str, Sint len); +#define erts_bld_string(hpp,szp,str) erts_bld_string_n(hpp,szp,str,strlen(str)) +Eterm erts_bld_list(Uint **hpp, Uint *szp, Sint length, Eterm terms[]); +Eterm erts_bld_2tup_list(Uint **hpp, Uint *szp, + Sint length, Eterm terms1[], Uint terms2[]); +Eterm +erts_bld_atom_uword_2tup_list(Uint **hpp, Uint *szp, + Sint length, Eterm atoms[], UWord uints[]); +Eterm +erts_bld_atom_2uint_3tup_list(Uint **hpp, Uint *szp, Sint length, + Eterm atoms[], Uint uints1[], Uint uints2[]); + +void erts_init_utils(void); +void erts_init_utils_mem(void); + +erts_dsprintf_buf_t *erts_create_tmp_dsbuf(Uint); +void erts_destroy_tmp_dsbuf(erts_dsprintf_buf_t *); + +#if HALFWORD_HEAP +int eq_rel(Eterm a, Eterm* a_base, Eterm b, Eterm* b_base); +# define eq(A,B) eq_rel(A,NULL,B,NULL) +#else +int eq(Eterm, Eterm); +# define eq_rel(A,A_BASE,B,B_BASE) eq(A,B) +#endif + +#define EQ(x,y) (((x) == (y)) || (is_not_both_immed((x),(y)) && eq((x),(y)))) + +#if HALFWORD_HEAP +Sint erts_cmp_rel_opt(Eterm, Eterm*, Eterm, Eterm*, int); +#define cmp_rel(A,A_BASE,B,B_BASE) erts_cmp_rel_opt(A,A_BASE,B,B_BASE,0) +#define cmp_rel_term(A,A_BASE,B,B_BASE) erts_cmp_rel_opt(A,A_BASE,B,B_BASE,1) +#define CMP(A,B) erts_cmp_rel_opt(A,NULL,B,NULL,0) +#define CMP_TERM(A,B) erts_cmp_rel_opt(A,NULL,B,NULL,1) +#else +Sint cmp(Eterm, Eterm); +Sint erts_cmp(Eterm, Eterm, int); +#define cmp_rel(A,A_BASE,B,B_BASE) erts_cmp(A,B,0) +#define cmp_rel_term(A,A_BASE,B,B_BASE) erts_cmp(A,B,1) +#define CMP(A,B) erts_cmp(A,B,0) +#define CMP_TERM(A,B) erts_cmp(A,B,1) +#endif + +#define cmp_lt(a,b) (CMP((a),(b)) < 0) +#define cmp_le(a,b) (CMP((a),(b)) <= 0) +#define cmp_eq(a,b) (CMP((a),(b)) == 0) +#define cmp_ne(a,b) (CMP((a),(b)) != 0) +#define cmp_ge(a,b) (CMP((a),(b)) >= 0) +#define cmp_gt(a,b) (CMP((a),(b)) > 0) + +#define cmp_lt_term(a,b) (CMP_TERM((a),(b)) < 0) +#define cmp_le_term(a,b) (CMP_TERM((a),(b)) <= 0) +#define cmp_ge_term(a,b) (CMP_TERM((a),(b)) >= 0) +#define cmp_gt_term(a,b) (CMP_TERM((a),(b)) > 0) + +#define CMP_LT(a,b) ((a) != (b) && cmp_lt((a),(b))) +#define CMP_GE(a,b) ((a) == (b) || cmp_ge((a),(b))) +#define CMP_EQ(a,b) ((a) == (b) || cmp_eq((a),(b))) +#define CMP_NE(a,b) ((a) != (b) && cmp_ne((a),(b))) + +#define CMP_LT_TERM(a,b) ((a) != (b) && cmp_lt_term((a),(b))) +#define CMP_GE_TERM(a,b) ((a) == (b) || cmp_ge_term((a),(b))) + +#endif diff --git a/erts/emulator/beam/erl_vm.h b/erts/emulator/beam/erl_vm.h index c962955de9..b7de8208ad 100644 --- a/erts/emulator/beam/erl_vm.h +++ b/erts/emulator/beam/erl_vm.h @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 1996-2012. All Rights Reserved. + * Copyright Ericsson AB 1996-2014. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -46,7 +46,6 @@ heap data on the C stack or if we use the buffers in the scheduler data. */ #define TMP_HEAP_SIZE 128 /* Number of Eterm in the schedulers small heap for transient heap data */ -#define CMP_TMP_HEAP_SIZE 32 /* cmp wants its own tmp-heap... */ #define ERL_ARITH_TMP_HEAP_SIZE 4 /* as does erl_arith... */ #define BEAM_EMU_TMP_HEAP_SIZE 2 /* and beam_emu... */ @@ -80,7 +79,7 @@ # ifdef CHECK_FOR_HOLES # define INIT_HEAP_MEM(p,sz) erts_set_hole_marker(HEAP_TOP(p), (sz)) # else -# define INIT_HEAP_MEM(p,sz) memset(HEAP_TOP(p),DEBUG_BAD_BYTE,(sz)*sizeof(Eterm*)) +# define INIT_HEAP_MEM(p,sz) memset(HEAP_TOP(p),0x01,(sz)*sizeof(Eterm*)) # endif #else # define INIT_HEAP_MEM(p,sz) ((void)0) @@ -98,7 +97,7 @@ * failing that, in a heap fragment. */ #define HAllocX(p, sz, xtra) \ - (ASSERT_EXPR((sz) >= 0), \ + (ASSERT((sz) >= 0), \ ErtsHAllocLockCheck(p), \ (IS_FORCE_HEAP_FRAGS || (((HEAP_LIMIT(p) - HEAP_TOP(p)) < (sz))) \ ? erts_heap_alloc((p),(sz),(xtra)) \ @@ -135,14 +134,14 @@ */ #ifdef CHECK_FOR_HOLES # define HeapOnlyAlloc(p, sz) \ - (ASSERT_EXPR((sz) >= 0), \ - (ASSERT_EXPR(((HEAP_LIMIT(p) - HEAP_TOP(p)) >= (sz))), \ + (ASSERT((sz) >= 0), \ + (ASSERT(((HEAP_LIMIT(p) - HEAP_TOP(p)) >= (sz))), \ (erts_set_hole_marker(HEAP_TOP(p), (sz)), \ (HEAP_TOP(p) = HEAP_TOP(p) + (sz), HEAP_TOP(p) - (sz))))) #else # define HeapOnlyAlloc(p, sz) \ - (ASSERT_EXPR((sz) >= 0), \ - (ASSERT_EXPR(((HEAP_LIMIT(p) - HEAP_TOP(p)) >= (sz))), \ + (ASSERT((sz) >= 0), \ + (ASSERT(((HEAP_LIMIT(p) - HEAP_TOP(p)) >= (sz))), \ (HEAP_TOP(p) = HEAP_TOP(p) + (sz), HEAP_TOP(p) - (sz)))) #endif diff --git a/erts/emulator/beam/erl_zlib.c b/erts/emulator/beam/erl_zlib.c index f73d48b6c2..8e33144f96 100644 --- a/erts/emulator/beam/erl_zlib.c +++ b/erts/emulator/beam/erl_zlib.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 2009. All Rights Reserved. + * Copyright Ericsson AB 2009-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -44,6 +44,88 @@ void erl_zlib_zfree_callback (voidpf opaque, voidpf ptr) erts_free(ERTS_ALC_T_ZLIB, ptr); } +/* + * Initialize a z_stream with a source, to later *chunk* data into a destination + * Returns Z_OK or Error. + */ +int ZEXPORT erl_zlib_deflate_start(z_stream *streamp, const Bytef* source, + uLong sourceLen, int level) +{ + streamp->next_in = (Bytef*)source; + streamp->avail_in = (uInt)sourceLen; + streamp->total_out = streamp->avail_out = 0; + streamp->next_out = NULL; + erl_zlib_alloc_init(streamp); + return deflateInit(streamp, level); +} +/* + * Deflate a chunk, The destination length is the limit. + * Returns Z_OK if more to process, Z_STREAM_END if we are done. + */ +int ZEXPORT erl_zlib_deflate_chunk(z_stream *streamp, Bytef* dest, uLongf* destLen) +{ + int err; + uLongf last_tot = streamp->total_out; + + streamp->next_out = dest; + streamp->avail_out = (uInt)*destLen; + + if ((uLong)streamp->avail_out != *destLen) return Z_BUF_ERROR; + + err = deflate(streamp, Z_FINISH); + *destLen = streamp->total_out - last_tot; + return err; +} + + +/* + * When we are done, free up the deflate structure + * Retyurns Z_OK or Error + */ +int ZEXPORT erl_zlib_deflate_finish(z_stream *streamp) +{ + return deflateEnd(streamp); +} + +int ZEXPORT erl_zlib_inflate_start(z_stream *streamp, const Bytef* source, + uLong sourceLen) +{ + streamp->next_in = (Bytef*)source; + streamp->avail_in = (uInt)sourceLen; + streamp->total_out = streamp->avail_out = 0; + streamp->next_out = NULL; + erl_zlib_alloc_init(streamp); + return inflateInit(streamp); +} +/* + * Inflate a chunk, The destination length is the limit. + * Returns Z_OK if more to process, Z_STREAM_END if we are done. + */ +int ZEXPORT erl_zlib_inflate_chunk(z_stream *streamp, Bytef* dest, uLongf* destLen) +{ + int err; + uLongf last_tot = streamp->total_out; + + streamp->next_out = dest; + streamp->avail_out = (uInt)*destLen; + + if ((uLong)streamp->avail_out != *destLen) return Z_BUF_ERROR; + + err = inflate(streamp, Z_NO_FLUSH); + ASSERT(err != Z_STREAM_ERROR); + *destLen = streamp->total_out - last_tot; + return err; +} + +/* + * When we are done, free up the inflate structure + * Retyurns Z_OK or Error + */ +int ZEXPORT erl_zlib_inflate_finish(z_stream *streamp) +{ + return inflateEnd(streamp); +} + int ZEXPORT erl_zlib_compress2 (Bytef* dest, uLongf* destLen, const Bytef* source, uLong sourceLen, diff --git a/erts/emulator/beam/erl_zlib.h b/erts/emulator/beam/erl_zlib.h index 9054a5e428..160166c66b 100644 --- a/erts/emulator/beam/erl_zlib.h +++ b/erts/emulator/beam/erl_zlib.h @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 2009. All Rights Reserved. + * Copyright Ericsson AB 2009-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -31,6 +31,20 @@ (s)->zfree = erl_zlib_zfree_callback; \ } while (0) +/* + * Chunked interface, used by term_to_binary among others. + */ +int ZEXPORT erl_zlib_deflate_start(z_stream *streamp, const Bytef* source, + uLong sourceLen, int level); +int ZEXPORT erl_zlib_deflate_chunk(z_stream *streamp, Bytef* dest, uLongf* destLen); +int ZEXPORT erl_zlib_deflate_finish(z_stream *streamp); + +int ZEXPORT erl_zlib_inflate_start(z_stream *streamp, const Bytef* source, + uLong sourceLen); +int ZEXPORT erl_zlib_inflate_chunk(z_stream *streamp, Bytef* dest, uLongf* destLen); +int ZEXPORT erl_zlib_inflate_finish(z_stream *streamp); + + /* Use instead of compress */ #define erl_zlib_compress(dest,destLen,source,sourceLen) \ diff --git a/erts/emulator/beam/erlang_dtrace.d b/erts/emulator/beam/erlang_dtrace.d index bdfde58845..e3ebbb84f4 100644 --- a/erts/emulator/beam/erlang_dtrace.d +++ b/erts/emulator/beam/erlang_dtrace.d @@ -639,9 +639,9 @@ provider erlang { * Entry into the efile_drv.c file I/O driver * * For a list of command numbers used by this driver, see the section - * "Guide to probe arguments" in ../../../README.md. That section - * also contains explanation of the various integer and string - * arguments that may be present when any particular probe fires. + * "Guide to efile_drv.c probe arguments" in ../../../HOWTO/DTRACE.md. + * That section also contains explanation of the various integer and + * string arguments that may be present when any particular probe fires. * * NOTE: Not all Linux platforms (using SystemTap) can support * arguments beyond arg9. diff --git a/erts/emulator/beam/export.c b/erts/emulator/beam/export.c index fb0ee99119..b0f08d8245 100644 --- a/erts/emulator/beam/export.c +++ b/erts/emulator/beam/export.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 1996-2011. All Rights Reserved. + * Copyright Ericsson AB 1996-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -32,98 +32,162 @@ #define EXPORT_HASH(m,f,a) ((m)*(f)+(a)) -static IndexTable export_table; /* Not locked. */ -static Hash secondary_export_table; /* Locked. */ +#ifdef DEBUG +# define IF_DEBUG(x) x +#else +# define IF_DEBUG(x) +#endif -#include "erl_smp.h" +static IndexTable export_tables[ERTS_NUM_CODE_IX]; /* Active not locked */ -static erts_smp_rwmtx_t export_table_lock; /* Locks the secondary export table. */ +static erts_smp_atomic_t total_entries_bytes; + +#include "erl_smp.h" -#define export_read_lock() erts_smp_rwmtx_rlock(&export_table_lock) -#define export_read_unlock() erts_smp_rwmtx_runlock(&export_table_lock) -#define export_write_lock() erts_smp_rwmtx_rwlock(&export_table_lock) -#define export_write_unlock() erts_smp_rwmtx_rwunlock(&export_table_lock) +/* This lock protects the staging export table from concurrent access + * AND it protects the staging table from becoming active. + */ +erts_smp_mtx_t export_staging_lock; extern BeamInstr* em_call_error_handler; extern BeamInstr* em_call_traced_function; +struct export_entry +{ + IndexSlot slot; /* MUST BE LOCATED AT TOP OF STRUCT!!! */ + Export* ep; +}; + +/* Helper struct that brings things together in one allocation +*/ +struct export_blob +{ + Export exp; + struct export_entry entryv[ERTS_NUM_CODE_IX]; + /* Note that entryv is not indexed by "code_ix". + */ +}; + +/* Helper struct only used as template +*/ +struct export_templ +{ + struct export_entry entry; + Export exp; +}; + +static struct export_blob* entry_to_blob(struct export_entry* ee) +{ + return (struct export_blob*) + ((char*)ee->ep - offsetof(struct export_blob,exp)); +} + void export_info(int to, void *to_arg) { #ifdef ERTS_SMP int lock = !ERTS_IS_CRASH_DUMPING; if (lock) - export_read_lock(); + export_staging_lock(); #endif - index_info(to, to_arg, &export_table); - hash_info(to, to_arg, &secondary_export_table); + index_info(to, to_arg, &export_tables[erts_active_code_ix()]); + hash_info(to, to_arg, &export_tables[erts_staging_code_ix()].htable); #ifdef ERTS_SMP if (lock) - export_read_unlock(); + export_staging_unlock(); #endif } static HashValue -export_hash(Export* x) +export_hash(struct export_entry* ee) { + Export* x = ee->ep; return EXPORT_HASH(x->code[0], x->code[1], x->code[2]); } static int -export_cmp(Export* tmpl, Export* obj) +export_cmp(struct export_entry* tmpl_e, struct export_entry* obj_e) { + Export* tmpl = tmpl_e->ep; + Export* obj = obj_e->ep; return !(tmpl->code[0] == obj->code[0] && tmpl->code[1] == obj->code[1] && tmpl->code[2] == obj->code[2]); } -static Export* -export_alloc(Export* tmpl) +static struct export_entry* +export_alloc(struct export_entry* tmpl_e) { - Export* obj = (Export*) erts_alloc(ERTS_ALC_T_EXPORT, sizeof(Export)); - - obj->fake_op_func_info_for_hipe[0] = 0; - obj->fake_op_func_info_for_hipe[1] = 0; - obj->code[0] = tmpl->code[0]; - obj->code[1] = tmpl->code[1]; - obj->code[2] = tmpl->code[2]; - obj->slot.index = -1; - obj->address = obj->code+3; - obj->code[3] = (BeamInstr) em_call_error_handler; - obj->code[4] = 0; - obj->match_prog_set = NULL; - return obj; + struct export_blob* blob; + unsigned ix; + + if (tmpl_e->slot.index == -1) { /* Template, allocate blob */ + Export* tmpl = tmpl_e->ep; + Export* obj; + + blob = (struct export_blob*) erts_alloc(ERTS_ALC_T_EXPORT, sizeof(*blob)); + erts_smp_atomic_add_nob(&total_entries_bytes, sizeof(*blob)); + obj = &blob->exp; + obj->fake_op_func_info_for_hipe[0] = 0; + obj->fake_op_func_info_for_hipe[1] = 0; + obj->code[0] = tmpl->code[0]; + obj->code[1] = tmpl->code[1]; + obj->code[2] = tmpl->code[2]; + obj->code[3] = (BeamInstr) em_call_error_handler; + obj->code[4] = 0; + + for (ix=0; ix<ERTS_NUM_CODE_IX; ix++) { + obj->addressv[ix] = obj->code+3; + + blob->entryv[ix].slot.index = -1; + blob->entryv[ix].ep = &blob->exp; + } + ix = 0; + } + else { /* Existing entry in another table, use free entry in blob */ + blob = entry_to_blob(tmpl_e); + for (ix = 0; blob->entryv[ix].slot.index >= 0; ix++) { + ASSERT(ix < ERTS_NUM_CODE_IX); + } + } + return &blob->entryv[ix]; } - -static void -export_free(Export* obj) +static void +export_free(struct export_entry* obj) { - erts_free(ERTS_ALC_T_EXPORT, (void*) obj); + struct export_blob* blob = entry_to_blob(obj); + int i; + obj->slot.index = -1; + for (i=0; i < ERTS_NUM_CODE_IX; i++) { + if (blob->entryv[i].slot.index >= 0) { + return; + } + } + erts_free(ERTS_ALC_T_EXPORT, blob); + erts_smp_atomic_add_nob(&total_entries_bytes, -sizeof(*blob)); } - void init_export_table(void) { HashFunctions f; - erts_smp_rwmtx_opt_t rwmtx_opt = ERTS_SMP_RWMTX_OPT_DEFAULT_INITER; - rwmtx_opt.type = ERTS_SMP_RWMTX_TYPE_FREQUENT_READ; - rwmtx_opt.lived = ERTS_SMP_RWMTX_LONG_LIVED; + int i; - erts_smp_rwmtx_init_opt(&export_table_lock, &rwmtx_opt, "export_tab"); + erts_smp_mtx_init(&export_staging_lock, "export_tab"); + erts_smp_atomic_init_nob(&total_entries_bytes, 0); f.hash = (H_FUN) export_hash; f.cmp = (HCMP_FUN) export_cmp; f.alloc = (HALLOC_FUN) export_alloc; f.free = (HFREE_FUN) export_free; - erts_index_init(ERTS_ALC_T_EXPORT_TABLE, &export_table, "export_list", - EXPORT_INITIAL_SIZE, EXPORT_LIMIT, f); - hash_init(ERTS_ALC_T_EXPORT_TABLE, &secondary_export_table, - "secondary_export_table", 50, f); + for (i=0; i<ERTS_NUM_CODE_IX; i++) { + erts_index_init(ERTS_ALC_T_EXPORT_TABLE, &export_tables[i], "export_list", + EXPORT_INITIAL_SIZE, EXPORT_LIMIT, f); + } } /* @@ -138,29 +202,42 @@ init_export_table(void) * called through such an export entry. * 3) This function is suitable for the implementation of erlang:apply/3. */ +extern Export* /* inline-helper */ +erts_find_export_entry(Eterm m, Eterm f, unsigned int a,ErtsCodeIndex code_ix); Export* -erts_find_export_entry(Eterm m, Eterm f, unsigned int a) +erts_find_export_entry(Eterm m, Eterm f, unsigned int a, ErtsCodeIndex code_ix) { HashValue hval = EXPORT_HASH((BeamInstr) m, (BeamInstr) f, (BeamInstr) a); int ix; HashBucket* b; - ix = hval % export_table.htable.size; - b = export_table.htable.bucket[ix]; + ix = hval % export_tables[code_ix].htable.size; + b = export_tables[code_ix].htable.bucket[ix]; /* * Note: We have inlined the code from hash.c for speed. */ while (b != (HashBucket*) 0) { - Export* ep = (Export *) b; + Export* ep = ((struct export_entry*) b)->ep; if (ep->code[0] == m && ep->code[1] == f && ep->code[2] == a) { - break; + return ep; } b = b->next; } - return (Export*)b; + return NULL; +} + +static struct export_entry* init_template(struct export_templ* templ, + Eterm m, Eterm f, unsigned a) +{ + templ->entry.ep = &templ->exp; + templ->entry.slot.index = -1; + templ->exp.code[0] = m; + templ->exp.code[1] = f; + templ->exp.code[2] = a; + return &templ->entry; } @@ -176,47 +253,42 @@ erts_find_export_entry(Eterm m, Eterm f, unsigned int a) */ Export* -erts_find_function(Eterm m, Eterm f, unsigned int a) +erts_find_function(Eterm m, Eterm f, unsigned int a, ErtsCodeIndex code_ix) { - Export e; - Export* ep; - - e.code[0] = m; - e.code[1] = f; - e.code[2] = a; - - ep = hash_get(&export_table.htable, (void*) &e); - if (ep != NULL && ep->address == ep->code+3 && - ep->code[3] != (BeamInstr) em_call_traced_function) { - ep = NULL; + struct export_templ templ; + struct export_entry* ee; + + ee = hash_get(&export_tables[code_ix].htable, init_template(&templ, m, f, a)); + if (ee == NULL || + (ee->ep->addressv[code_ix] == ee->ep->code+3 && + ee->ep->code[3] != (BeamInstr) BeamOp(op_i_generic_breakpoint))) { + return NULL; } - return ep; + return ee->ep; } /* * Returns a pointer to an existing export entry for a MFA, * or creates a new one and returns the pointer. * - * This function provides unlocked write access to the main export - * table. It should only be used during start up or when - * all other threads are blocked. + * This function acts on the staging export table. It should only be used + * to load new code. */ Export* erts_export_put(Eterm mod, Eterm func, unsigned int arity) { - Export e; - int ix; + ErtsCodeIndex code_ix = erts_staging_code_ix(); + struct export_templ templ; + struct export_entry* ee; - ERTS_SMP_LC_ASSERT(erts_initialized == 0 - || erts_smp_thr_progress_is_blocking()); ASSERT(is_atom(mod)); ASSERT(is_atom(func)); - e.code[0] = mod; - e.code[1] = func; - e.code[2] = arity; - ix = index_put(&export_table, (void*) &e); - return (Export*) erts_index_lookup(&export_table, ix); + export_staging_lock(); + ee = (struct export_entry*) index_put_entry(&export_tables[code_ix], + init_template(&templ, mod, func, arity)); + export_staging_unlock(); + return ee->ep; } /* @@ -224,77 +296,122 @@ erts_export_put(Eterm mod, Eterm func, unsigned int arity) * export entry (making a call through it will cause the error_handler to * be called). * - * Stub export entries will be placed in the secondary export table. - * erts_export_consolidate() will move all stub export entries into the - * main export table (will be done the next time code is loaded). + * Stub export entries will be placed in the loader export table. */ Export* erts_export_get_or_make_stub(Eterm mod, Eterm func, unsigned int arity) { - Export e; + ErtsCodeIndex code_ix; Export* ep; + IF_DEBUG(int retrying = 0;) ASSERT(is_atom(mod)); ASSERT(is_atom(func)); - - e.code[0] = mod; - e.code[1] = func; - e.code[2] = arity; - ep = erts_find_export_entry(mod, func, arity); - if (ep == 0) { - /* - * The code is not loaded (yet). Put the export in the secondary - * export table, to avoid having to lock the main export table. - */ - export_write_lock(); - ep = (Export *) hash_put(&secondary_export_table, (void*) &e); - export_write_unlock(); - } + + do { + code_ix = erts_active_code_ix(); + ep = erts_find_export_entry(mod, func, arity, code_ix); + if (ep == 0) { + /* + * The code is not loaded (yet). Put the export in the staging + * export table, to avoid having to lock the active export table. + */ + export_staging_lock(); + if (erts_active_code_ix() == code_ix) { + struct export_templ templ; + struct export_entry* entry; + + IndexTable* tab = &export_tables[erts_staging_code_ix()]; + init_template(&templ, mod, func, arity); + entry = (struct export_entry *) index_put_entry(tab, &templ.entry); + ep = entry->ep; + ASSERT(ep); + } + else { /* race */ + ASSERT(!retrying); + IF_DEBUG(retrying = 1); + } + export_staging_unlock(); + } + } while (!ep); return ep; } -/* - * To be called before loading code (with other threads blocked). - * This function will move all export entries from the secondary - * export table into the primary. - */ -void -erts_export_consolidate(void) +Export *export_list(int i, ErtsCodeIndex code_ix) { -#ifdef DEBUG - HashInfo hi; -#endif - - ERTS_SMP_LC_ASSERT(erts_initialized == 0 - || erts_smp_thr_progress_is_blocking()); - - export_write_lock(); - erts_index_merge(&secondary_export_table, &export_table); - erts_hash_merge(&secondary_export_table, &export_table.htable); - export_write_unlock(); -#ifdef DEBUG - hash_get_info(&hi, &export_table.htable); - ASSERT(export_table.entries == hi.objs); -#endif + return ((struct export_entry*) erts_index_lookup(&export_tables[code_ix], i))->ep; } -Export *export_list(int i) +int export_list_size(ErtsCodeIndex code_ix) { - return (Export*) erts_index_lookup(&export_table, i); + return export_tables[code_ix].entries; } -int export_list_size(void) +int export_table_sz(void) { - return export_table.entries; + int i, bytes = 0; + + export_staging_lock(); + for (i=0; i<ERTS_NUM_CODE_IX; i++) { + bytes += index_table_sz(&export_tables[i]); + } + export_staging_unlock(); + return bytes; +} +int export_entries_sz(void) +{ + return erts_smp_atomic_read_nob(&total_entries_bytes); } +Export *export_get(Export *e) +{ + struct export_entry ee; + struct export_entry* entry; -int export_table_sz(void) + ee.ep = e; + entry = (struct export_entry*)hash_get(&export_tables[erts_active_code_ix()].htable, &ee); + return entry ? entry->ep : NULL; +} + +IF_DEBUG(static ErtsCodeIndex debug_start_load_ix = 0;) + + +void export_start_staging(void) { - return index_table_sz(&export_table); + ErtsCodeIndex dst_ix = erts_staging_code_ix(); + ErtsCodeIndex src_ix = erts_active_code_ix(); + IndexTable* dst = &export_tables[dst_ix]; + IndexTable* src = &export_tables[src_ix]; + struct export_entry* src_entry; +#ifdef DEBUG + struct export_entry* dst_entry; +#endif + int i; + + ASSERT(dst_ix != src_ix); + ASSERT(debug_start_load_ix == -1); + + export_staging_lock(); + /* + * Insert all entries in src into dst table + */ + for (i = 0; i < src->entries; i++) { + src_entry = (struct export_entry*) erts_index_lookup(src, i); + src_entry->ep->addressv[dst_ix] = src_entry->ep->addressv[src_ix]; +#ifdef DEBUG + dst_entry = (struct export_entry*) +#endif + index_put_entry(dst, src_entry); + ASSERT(entry_to_blob(src_entry) == entry_to_blob(dst_entry)); + } + export_staging_unlock(); + + IF_DEBUG(debug_start_load_ix = dst_ix); } -Export *export_get(Export *e) +void export_end_staging(int commit) { - return hash_get(&export_table.htable, e); + ASSERT(debug_start_load_ix == erts_staging_code_ix()); + IF_DEBUG(debug_start_load_ix = -1); } + diff --git a/erts/emulator/beam/export.h b/erts/emulator/beam/export.h index c604fdf7c3..61a54de59f 100644 --- a/erts/emulator/beam/export.h +++ b/erts/emulator/beam/export.h @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 1996-2010. All Rights Reserved. + * Copyright Ericsson AB 1996-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -28,14 +28,15 @@ #include "index.h" #endif +#include "code_ix.h" + /* ** Export entry */ + typedef struct export { - IndexSlot slot; /* MUST BE LOCATED AT TOP OF STRUCT!!! */ - void* address; /* Pointer to code for function. */ - struct binary* match_prog_set; /* Match program for tracing. */ + void* addressv[ERTS_NUM_CODE_IX]; /* Pointer to code for function. */ BeamInstr fake_op_func_info_for_hipe[2]; /* MUST be just before code[] */ /* @@ -44,12 +45,12 @@ typedef struct export * code[2]: Arity (untagged integer). * code[3]: This entry is 0 unless the 'address' field points to it. * Threaded code instruction to load function - * (em_call_error_handler), execute BIF (em_apply_bif, - * em_apply_apply), or call a traced function - * (em_call_traced_function). - * code[4]: Function pointer to BIF function (for BIFs only) + * (em_call_error_handler), execute BIF (em_apply_bif), + * or a breakpoint instruction (op_i_generic_breakpoint). + * code[4]: Function pointer to BIF function (for BIFs only), * or pointer to threaded code if the module has an - * on_load function that has not been run yet. + * on_load function that has not been run yet, or pointer + * to code for function code[3] is a breakpont instruction. * Otherwise: 0. */ BeamInstr code[5]; @@ -59,21 +60,38 @@ typedef struct export void init_export_table(void); void export_info(int, void *); -Export* erts_find_export_entry(Eterm m, Eterm f, unsigned int a); +ERTS_GLB_INLINE Export* erts_active_export_entry(Eterm m, Eterm f, unsigned a); Export* erts_export_put(Eterm mod, Eterm func, unsigned int arity); - Export* erts_export_get_or_make_stub(Eterm, Eterm, unsigned); -void erts_export_consolidate(void); -Export *export_list(int); -int export_list_size(void); +Export *export_list(int,ErtsCodeIndex); +int export_list_size(ErtsCodeIndex); int export_table_sz(void); +int export_entries_sz(void); Export *export_get(Export*); +void export_start_staging(void); +void export_end_staging(int commit); + +extern erts_smp_mtx_t export_staging_lock; +#define export_staging_lock() erts_smp_mtx_lock(&export_staging_lock) +#define export_staging_unlock() erts_smp_mtx_unlock(&export_staging_lock) #include "beam_load.h" /* For em_* extern declarations */ #define ExportIsBuiltIn(EntryPtr) \ -(((EntryPtr)->address == (EntryPtr)->code + 3) && \ +(((EntryPtr)->addressv[erts_active_code_ix()] == (EntryPtr)->code + 3) && \ ((EntryPtr)->code[3] == (BeamInstr) em_apply_bif)) -#endif +#if ERTS_GLB_INLINE_INCL_FUNC_DEF + +ERTS_GLB_INLINE Export* +erts_active_export_entry(Eterm m, Eterm f, unsigned int a) +{ + extern Export* erts_find_export_entry(Eterm m, Eterm f, unsigned a, ErtsCodeIndex); + return erts_find_export_entry(m, f, a, erts_active_code_ix()); +} + +#endif /* ERTS_GLB_INLINE_INCL_FUNC_DEF */ + +#endif /* __EXPORT_H__ */ + diff --git a/erts/emulator/beam/external.c b/erts/emulator/beam/external.c index 52f45b924f..8d240355b0 100644 --- a/erts/emulator/beam/external.c +++ b/erts/emulator/beam/external.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 1996-2012. All Rights Reserved. + * Copyright Ericsson AB 1996-2014. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -42,10 +42,8 @@ #include "erl_binary.h" #include "erl_bits.h" #include "erl_zlib.h" +#include "erl_map.h" -#ifdef HIPE -#include "hipe_mode_switch.h" -#endif #define in_area(ptr,start,nbytes) ((UWord)((char*)(ptr) - (char*)(start)) < (nbytes)) #define MAX_STRING_LEN 0xffff @@ -61,6 +59,9 @@ */ # define ERTS_DEBUG_USE_DIST_SEP # endif +# define IF_DEBUG(X) X +#else +# define IF_DEBUG(X) #endif /* Does Sint fit in Sint32? @@ -81,17 +82,45 @@ * */ +static Export term_to_binary_trap_export; + static byte* enc_term(ErtsAtomCacheMap *, Eterm, byte*, Uint32, struct erl_off_heap_header** off_heap); +struct TTBEncodeContext_; +static int enc_term_int(struct TTBEncodeContext_*,ErtsAtomCacheMap *acmp, Eterm obj, byte* ep, Uint32 dflags, + struct erl_off_heap_header** off_heap, Sint *reds, byte **res); static Uint is_external_string(Eterm obj, int* p_is_string); static byte* enc_atom(ErtsAtomCacheMap *, Eterm, byte*, Uint32); static byte* enc_pid(ErtsAtomCacheMap *, Eterm, byte*, Uint32); -static byte* dec_term(ErtsDistExternal *, Eterm**, byte*, ErlOffHeap*, Eterm*); +struct B2TContext_t; +static byte* dec_term(ErtsDistExternal *, Eterm**, byte*, ErlOffHeap*, Eterm*, struct B2TContext_t*); static byte* dec_atom(ErtsDistExternal *, byte*, Eterm*); static byte* dec_pid(ErtsDistExternal *, Eterm**, byte*, ErlOffHeap*, Eterm*); -static Sint decoded_size(byte *ep, byte* endp, int internal_tags); +static Sint decoded_size(byte *ep, byte* endp, int internal_tags, struct B2TContext_t*); +static BIF_RETTYPE term_to_binary_trap_1(BIF_ALIST_1); +static Eterm erts_term_to_binary_int(Process* p, Eterm Term, int level, Uint flags, + Binary *context_b); static Uint encode_size_struct2(ErtsAtomCacheMap *, Eterm, unsigned); +struct TTBSizeContext_; +static int encode_size_struct_int(struct TTBSizeContext_*, ErtsAtomCacheMap *acmp, Eterm obj, + unsigned dflags, Sint *reds, Uint *res); + +static Export binary_to_term_trap_export; +static BIF_RETTYPE binary_to_term_trap_1(BIF_ALIST_1); +static BIF_RETTYPE binary_to_term_int(Process* p, Uint32 flags, Eterm bin, Binary* context_b, + Export *bif, Eterm arg0, Eterm arg1); + +void erts_init_external(void) { + erts_init_trap_export(&term_to_binary_trap_export, + am_erts_internal, am_term_to_binary_trap, 1, + &term_to_binary_trap_1); + + erts_init_trap_export(&binary_to_term_trap_export, + am_erts_internal, am_binary_to_term_trap, 1, + &binary_to_term_trap_1); + return; +} #define ERTS_MAX_INTERNAL_ATOM_CACHE_ENTRIES 255 @@ -142,6 +171,7 @@ erts_init_atom_cache_map(ErtsAtomCacheMap *acmp) { if (acmp) { int ix; + acmp->long_atoms = 0; for (ix = 0; ix < ERTS_ATOM_CACHE_SIZE; ix++) acmp->cache[ix].iix = -1; acmp->sz = 0; @@ -154,6 +184,7 @@ erts_reset_atom_cache_map(ErtsAtomCacheMap *acmp) { if (acmp) { int i; + acmp->long_atoms = 0; for (i = 0; i < acmp->sz; i++) { ASSERT(0 <= acmp->cix[i] && acmp->cix[i] < ERTS_ATOM_CACHE_SIZE); acmp->cache[acmp->cix[i]].iix = -1; @@ -175,9 +206,23 @@ erts_destroy_atom_cache_map(ErtsAtomCacheMap *acmp) } static ERTS_INLINE void -insert_acache_map(ErtsAtomCacheMap *acmp, Eterm atom) +insert_acache_map(ErtsAtomCacheMap *acmp, Eterm atom, Uint32 dflags) { - if (acmp && acmp->sz < ERTS_MAX_INTERNAL_ATOM_CACHE_ENTRIES) { + /* + * If the receiver do not understand utf8 atoms + * and this atom cannot be represented in latin1, + * we are not allowed to cache it. + * + * In this case all atoms are assumed to have + * latin1 encoding in the cache. By refusing it + * in the cache we will instead encode it using + * ATOM_UTF8_EXT/SMALL_ATOM_UTF8_EXT which the + * receiver do not recognize and tear down the + * connection. + */ + if (acmp && acmp->sz < ERTS_MAX_INTERNAL_ATOM_CACHE_ENTRIES + && ((dflags & DFLAG_UTF8_ATOMS) + || atom_tab(atom_val(atom))->latin1_chars >= 0)) { int ix; ASSERT(acmp->hdr_sz < 0); ix = atom2cix(atom); @@ -190,7 +235,7 @@ insert_acache_map(ErtsAtomCacheMap *acmp, Eterm atom) } static ERTS_INLINE int -get_iix_acache_map(ErtsAtomCacheMap *acmp, Eterm atom) +get_iix_acache_map(ErtsAtomCacheMap *acmp, Eterm atom, Uint32 dflags) { if (!acmp) return -1; @@ -199,7 +244,9 @@ get_iix_acache_map(ErtsAtomCacheMap *acmp, Eterm atom) ASSERT(is_atom(atom)); ix = atom2cix(atom); if (acmp->cache[ix].iix < 0) { - ASSERT(acmp->sz == ERTS_MAX_INTERNAL_ATOM_CACHE_ENTRIES); + ASSERT(acmp->sz == ERTS_MAX_INTERNAL_ATOM_CACHE_ENTRIES + || (!(dflags & DFLAG_UTF8_ATOMS) + && atom_tab(atom_val(atom))->latin1_chars < 0)); return -1; } else { @@ -210,18 +257,17 @@ get_iix_acache_map(ErtsAtomCacheMap *acmp, Eterm atom) } void -erts_finalize_atom_cache_map(ErtsAtomCacheMap *acmp) +erts_finalize_atom_cache_map(ErtsAtomCacheMap *acmp, Uint32 dflags) { if (acmp) { -#if MAX_ATOM_LENGTH > 255 -#error "This code is not complete; long_atoms info need to be passed to the following stages." - int long_atoms = 0; /* !0 if one or more atoms are long than 255. */ -#endif + int utf8_atoms = (int) (dflags & DFLAG_UTF8_ATOMS); + int long_atoms = 0; /* !0 if one or more atoms are longer than 255. */ int i; int sz; int fix_sz = 1 /* VERSION_MAGIC */ + 1 /* DIST_HEADER */ + + 1 /* dist header flags */ + 1 /* number of internal cache entries */ ; int min_sz; @@ -230,22 +276,23 @@ erts_finalize_atom_cache_map(ErtsAtomCacheMap *acmp) min_sz = fix_sz+(2+4)*acmp->sz; sz = fix_sz; for (i = 0; i < acmp->sz; i++) { + Atom *a; Eterm atom; int len; atom = acmp->cache[acmp->cix[i]].atom; ASSERT(is_atom(atom)); - len = atom_tab(atom_val(atom))->len; -#if MAX_ATOM_LENGTH > 255 + a = atom_tab(atom_val(atom)); + len = (int) (utf8_atoms ? a->len : a->latin1_chars); + ASSERT(len >= 0); if (!long_atoms && len > 255) long_atoms = 1; -#endif /* Enough for a new atom cache value */ sz += 1 /* cix */ + 1 /* length */ + len /* text */; } -#if MAX_ATOM_LENGTH > 255 - if (long_atoms) + if (long_atoms) { + acmp->long_atoms = 1; sz += acmp->sz; /* we need 2 bytes per atom for length */ -#endif + } /* Dynamically sized flag field */ sz += ERTS_DIST_HDR_ATOM_CACHE_FLAG_BYTES(acmp->sz); if (sz < min_sz) @@ -274,6 +321,7 @@ byte *erts_encode_ext_dist_header_setup(byte *ctl_ext, ErtsAtomCacheMap *acmp) else { int i; byte *ep = ctl_ext; + byte dist_hdr_flags = acmp->long_atoms ? ERTS_DIST_HDR_LONG_ATOMS_FLG : 0; ASSERT(acmp->hdr_sz >= 0); /* * Write cache update instructions. Note that this is a purely @@ -296,28 +344,36 @@ byte *erts_encode_ext_dist_header_setup(byte *ctl_ext, ErtsAtomCacheMap *acmp) } --ep; put_int8(acmp->sz, ep); + --ep; + put_int8(dist_hdr_flags, ep); *--ep = DIST_HEADER; *--ep = VERSION_MAGIC; return ep; } } -byte *erts_encode_ext_dist_header_finalize(byte *ext, ErtsAtomCache *cache) +byte *erts_encode_ext_dist_header_finalize(byte *ext, ErtsAtomCache *cache, Uint32 dflags) { byte *ip; byte instr_buf[(2+4)*ERTS_ATOM_CACHE_SIZE]; int ci, sz; + byte dist_hdr_flags; + int long_atoms; + int utf8_atoms = (int) (dflags & DFLAG_UTF8_ATOMS); register byte *ep = ext; ASSERT(ep[0] == VERSION_MAGIC); if (ep[1] != DIST_HEADER) return ext; + dist_hdr_flags = ep[2]; + long_atoms = ERTS_DIST_HDR_LONG_ATOMS_FLG & ((int) dist_hdr_flags); + /* * Update output atom cache and write the external version of * the dist header. We write the header backwards just * before the actual term(s). */ - ep += 2; + ep += 3; ci = (int) get_int8(ep); ASSERT(0 <= ci && ci < ERTS_ATOM_CACHE_SIZE); ep += 1; @@ -342,12 +398,7 @@ byte *erts_encode_ext_dist_header_finalize(byte *ext, ErtsAtomCache *cache) flgs_bytes = ERTS_DIST_HDR_ATOM_CACHE_FLAG_BYTES(ci); ASSERT(flgs_bytes <= sizeof(flgs_buf)); -#if MAX_ATOM_LENGTH > 255 - /* long_atoms info needs to be passed from previous stages */ - if (long_atoms) - flgs |= ERTS_DIST_HDR_LONG_ATOMS_FLG; -#endif - flgs = 0; + flgs = (Uint32) dist_hdr_flags; flgs_buf_ix = 0; if ((ci & 1) == 0) used_half_bytes = 2; @@ -382,17 +433,22 @@ byte *erts_encode_ext_dist_header_finalize(byte *ext, ErtsAtomCache *cache) Atom *a; cache->out_arr[cix] = atom; a = atom_tab(atom_val(atom)); - sz = a->len; - ep -= sz; - sys_memcpy((void *) ep, (void *) a->name, sz); -#if MAX_ATOM_LENGTH > 255 + if (utf8_atoms) { + sz = a->len; + ep -= sz; + sys_memcpy((void *) ep, (void *) a->name, sz); + } + else { + ASSERT(0 <= a->latin1_chars && a->latin1_chars <= MAX_ATOM_CHARACTERS); + ep -= a->latin1_chars; + sz = erts_utf8_to_latin1(ep, a->name, a->len); + ASSERT(a->latin1_chars == sz); + } if (long_atoms) { ep -= 2; put_int16(sz, ep); } - else -#endif - { + else { ASSERT(0 <= sz && sz <= 255); --ep; put_int8(sz, ep); @@ -461,13 +517,13 @@ Uint erts_encode_ext_size(Eterm term) Uint erts_encode_ext_size_2(Eterm term, unsigned dflags) { - return encode_size_struct2(NULL, term, TERM_TO_BINARY_DFLAGS|dflags) + return encode_size_struct2(NULL, term, dflags) + 1 /* VERSION_MAGIC */; } Uint erts_encode_ext_size_ets(Eterm term) { - return encode_size_struct2(NULL, term, TERM_TO_BINARY_DFLAGS|DFLAGS_INTERNAL_TAGS); + return encode_size_struct2(NULL, term, TERM_TO_BINARY_DFLAGS|DFLAG_INTERNAL_TAGS); } @@ -500,7 +556,7 @@ void erts_encode_ext(Eterm term, byte **ext) byte* erts_encode_ext_ets(Eterm term, byte *ep, struct erl_off_heap_header** off_heap) { - return enc_term(NULL, term, ep, TERM_TO_BINARY_DFLAGS|DFLAGS_INTERNAL_TAGS, + return enc_term(NULL, term, ep, TERM_TO_BINARY_DFLAGS|DFLAG_INTERNAL_TAGS, off_heap); } @@ -553,6 +609,7 @@ erts_prepare_dist_ext(ErtsDistExternal *edep, #endif register byte *ep = ext; + int utf8_atoms = (int) (dep->flags & DFLAG_UTF8_ATOMS); edep->heap_size = -1; edep->ext_endp = ext+size; @@ -611,9 +668,7 @@ erts_prepare_dist_ext(ErtsDistExternal *edep, ERTS_EXT_HDR_FAIL; ep++; if (no_atoms) { -#if MAX_ATOM_LENGTH > 255 int long_atoms = 0; -#endif #ifdef DEBUG byte *flgs_buf = ep; #endif @@ -632,14 +687,8 @@ erts_prepare_dist_ext(ErtsDistExternal *edep, */ byte_ix = ERTS_DIST_HDR_ATOM_CACHE_FLAG_BYTE_IX(no_atoms); bit_ix = ERTS_DIST_HDR_ATOM_CACHE_FLAG_BIT_IX(no_atoms); - if (flgsp[byte_ix] & (((byte) ERTS_DIST_HDR_LONG_ATOMS_FLG) - << bit_ix)) { -#if MAX_ATOM_LENGTH > 255 + if (flgsp[byte_ix] & (((byte) ERTS_DIST_HDR_LONG_ATOMS_FLG) << bit_ix)) long_atoms = 1; -#else - ERTS_EXT_HDR_FAIL; /* Long atoms not supported yet */ -#endif - } #ifdef DEBUG byte_ix = 0; @@ -707,23 +756,25 @@ erts_prepare_dist_ext(ErtsDistExternal *edep, if (cix >= ERTS_ATOM_CACHE_SIZE) ERTS_EXT_HDR_FAIL; ep++; -#if MAX_ATOM_LENGTH > 255 if (long_atoms) { CHKSIZE(2); len = get_int16(ep); ep += 2; } - else -#endif - { + else { CHKSIZE(1); len = get_int8(ep); ep++; } - if (len > MAX_ATOM_LENGTH) - ERTS_EXT_HDR_FAIL; /* Too long atom */ CHKSIZE(len); - atom = am_atom_put((char *) ep, len); + atom = erts_atom_put((byte *) ep, + len, + (utf8_atoms + ? ERTS_ATOM_ENC_UTF8 + : ERTS_ATOM_ENC_LATIN1), + 0); + if (is_non_value(atom)) + ERTS_EXT_HDR_FAIL; ep += len; cache->in_arr[cix] = atom; edep->attab.atom[tix] = atom; @@ -829,7 +880,7 @@ erts_decode_dist_ext_size(ErtsDistExternal *edep) goto fail; ep = edep->extp+1; } - res = decoded_size(ep, edep->ext_endp, 0); + res = decoded_size(ep, edep->ext_endp, 0, NULL); if (res >= 0) return res; fail: @@ -841,12 +892,12 @@ Sint erts_decode_ext_size(byte *ext, Uint size) { if (size == 0 || *ext != VERSION_MAGIC) return -1; - return decoded_size(ext+1, ext+size, 0); + return decoded_size(ext+1, ext+size, 0, NULL); } Sint erts_decode_ext_size_ets(byte *ext, Uint size) { - Sint sz = decoded_size(ext, ext+size, 1); + Sint sz = decoded_size(ext, ext+size, 1, NULL); ASSERT(sz >= 0); return sz; } @@ -879,7 +930,7 @@ erts_decode_dist_ext(Eterm** hpp, goto error; ep++; } - ep = dec_term(edep, hpp, ep, off_heap, &obj); + ep = dec_term(edep, hpp, ep, off_heap, &obj, NULL); if (!ep) goto error; @@ -900,7 +951,7 @@ Eterm erts_decode_ext(Eterm **hpp, ErlOffHeap *off_heap, byte **ext) byte *ep = *ext; if (*ep++ != VERSION_MAGIC) return THE_NON_VALUE; - ep = dec_term(NULL, hpp, ep, off_heap, &obj); + ep = dec_term(NULL, hpp, ep, off_heap, &obj, NULL); if (!ep) { #ifdef DEBUG bin_write(ERTS_PRINT_STDERR,NULL,*ext,500); @@ -914,7 +965,7 @@ Eterm erts_decode_ext(Eterm **hpp, ErlOffHeap *off_heap, byte **ext) Eterm erts_decode_ext_ets(Eterm **hpp, ErlOffHeap *off_heap, byte *ext) { Eterm obj; - ext = dec_term(NULL, hpp, ext, off_heap, &obj); + ext = dec_term(NULL, hpp, ext, off_heap, &obj, NULL); ASSERT(ext); return obj; } @@ -926,7 +977,7 @@ BIF_RETTYPE erts_debug_dist_ext_to_term_2(BIF_ALIST_2) Eterm res; Eterm *hp; Eterm *hendp; - Uint hsz; + Sint hsz; ErtsDistExternal ede; Eterm *tp; Eterm real_bin; @@ -972,7 +1023,7 @@ BIF_RETTYPE erts_debug_dist_ext_to_term_2(BIF_ALIST_2) if (hsz < 0) goto badarg; - hp = HAlloc(BIF_P, hsz); + hp = HAlloc(BIF_P, (Uint) hsz); hendp = hp + hsz; res = erts_decode_dist_ext(&hp, &MSO(BIF_P), &ede); @@ -987,12 +1038,41 @@ BIF_RETTYPE erts_debug_dist_ext_to_term_2(BIF_ALIST_2) BIF_ERROR(BIF_P, BADARG); } +static BIF_RETTYPE term_to_binary_trap_1(BIF_ALIST_1) +{ + Eterm *tp = tuple_val(BIF_ARG_1); + Eterm Term = tp[1]; + Eterm bt = tp[2]; + Binary *bin = ((ProcBin *) binary_val(bt))->val; + Eterm res = erts_term_to_binary_int(BIF_P, Term, 0, 0,bin); + if (is_tuple(res)) { + ASSERT(BIF_P->flags & F_DISABLE_GC); + BIF_TRAP1(&term_to_binary_trap_export,BIF_P,res); + } else { + if (erts_set_gc_state(BIF_P, 1) + || MSO(BIF_P).overhead > BIN_VHEAP_SZ(BIF_P)) + ERTS_BIF_YIELD_RETURN(BIF_P, res); + else + BIF_RET(res); + } +} + +HIPE_WRAPPER_BIF_DISABLE_GC(term_to_binary, 1) BIF_RETTYPE term_to_binary_1(BIF_ALIST_1) { - return erts_term_to_binary(BIF_P, BIF_ARG_1, 0, TERM_TO_BINARY_DFLAGS); + Eterm res = erts_term_to_binary_int(BIF_P, BIF_ARG_1, 0, TERM_TO_BINARY_DFLAGS, NULL); + if (is_tuple(res)) { + erts_set_gc_state(BIF_P, 0); + BIF_TRAP1(&term_to_binary_trap_export,BIF_P,res); + } else { + ASSERT(!(BIF_P->flags & F_DISABLE_GC)); + BIF_RET(res); + } } +HIPE_WRAPPER_BIF_DISABLE_GC(term_to_binary, 2) + BIF_RETTYPE term_to_binary_2(BIF_ALIST_2) { Process* p = BIF_P; @@ -1000,6 +1080,7 @@ BIF_RETTYPE term_to_binary_2(BIF_ALIST_2) Eterm Flags = BIF_ARG_2; int level = 0; Uint flags = TERM_TO_BINARY_DFLAGS; + Eterm res; while (is_list(Flags)) { Eterm arg = CAR(list_val(Flags)); @@ -1010,10 +1091,10 @@ BIF_RETTYPE term_to_binary_2(BIF_ALIST_2) if (tp[1] == am_minor_version && is_small(tp[2])) { switch (signed_val(tp[2])) { case 0: - flags = TERM_TO_BINARY_DFLAGS; + flags = TERM_TO_BINARY_DFLAGS & ~DFLAG_NEW_FLOATS; break; case 1: - flags = TERM_TO_BINARY_DFLAGS|DFLAG_NEW_FLOATS; + flags = TERM_TO_BINARY_DFLAGS; break; default: goto error; @@ -1036,9 +1117,77 @@ BIF_RETTYPE term_to_binary_2(BIF_ALIST_2) goto error; } - return erts_term_to_binary(p, Term, level, flags); + res = erts_term_to_binary_int(p, Term, level, flags, NULL); + if (is_tuple(res)) { + erts_set_gc_state(p, 0); + BIF_TRAP1(&term_to_binary_trap_export,BIF_P,res); + } else { + ASSERT(!(BIF_P->flags & F_DISABLE_GC)); + BIF_RET(res); + } } + +enum B2TState { /* order is somewhat significant */ + B2TPrepare, + B2TUncompressChunk, + B2TSizeInit, + B2TSize, + B2TDecodeInit, + B2TDecode, + B2TDecodeList, + B2TDecodeTuple, + B2TDecodeString, + B2TDecodeBinary, + + B2TDone, + B2TDecodeFail, + B2TBadArg +}; + +typedef struct { + int heap_size; + int terms; + byte* ep; + int atom_extra_skip; +} B2TSizeContext; + +typedef struct { + byte* ep; + Eterm res; + Eterm* next; + Eterm* hp_start; + Eterm* hp; + Eterm* hp_end; + int remaining_n; + char* remaining_bytes; + Eterm* maps_head; +} B2TDecodeContext; + +typedef struct { + z_stream stream; + byte* dbytes; + Uint dleft; +} B2TUncompressContext; + +typedef struct B2TContext_t { + Sint heap_size; + byte* aligned_alloc; + ErtsBinary2TermState b2ts; + Uint32 flags; + SWord reds; + Eterm trap_bin; + Export *bif; + Eterm arg[2]; + enum B2TState state; + union { + B2TSizeContext sc; + B2TDecodeContext dc; + B2TUncompressContext uc; + } u; +} B2TContext; + + static uLongf binary2term_uncomp_size(byte* data, Sint size) { z_stream stream; @@ -1068,48 +1217,62 @@ static uLongf binary2term_uncomp_size(byte* data, Sint size) return err == Z_STREAM_END ? uncomp_size : 0; } -static ERTS_INLINE Sint -binary2term_prepare(ErtsBinary2TermState *state, byte *data, Sint data_size) +static ERTS_INLINE int +binary2term_prepare(ErtsBinary2TermState *state, byte *data, Sint data_size, + B2TContext* ctx) { - Sint res; byte *bytes = data; Sint size = data_size; state->exttmp = 0; if (size < 1 || *bytes != VERSION_MAGIC) { - error: - if (state->exttmp) - erts_free(ERTS_ALC_T_TMP, state->extp); - state->extp = NULL; - state->exttmp = 0; return -1; } bytes++; size--; if (size < 5 || *bytes != COMPRESSED) { state->extp = bytes; + if (ctx) + ctx->state = B2TSizeInit; } else { uLongf dest_len = (Uint32) get_int32(bytes+1); bytes += 5; size -= 5; if (dest_len > 32*1024*1024 - || (state->extp = erts_alloc_fnf(ERTS_ALC_T_TMP, dest_len)) == NULL) { + || (state->extp = erts_alloc_fnf(ERTS_ALC_T_EXT_TERM_DATA, dest_len)) == NULL) { + /* + * Try avoid out-of-memory crash due to corrupted 'dest_len' + * by checking the actual length of the uncompressed data. + * The only way to do that is to uncompress it. Sad but true. + */ if (dest_len != binary2term_uncomp_size(bytes, size)) { - goto error; + return -1; } - state->extp = erts_alloc(ERTS_ALC_T_TMP, dest_len); + state->extp = erts_alloc(ERTS_ALC_T_EXT_TERM_DATA, dest_len); + ctx->reds -= dest_len; } state->exttmp = 1; - if (erl_zlib_uncompress(state->extp, &dest_len, bytes, size) != Z_OK) - goto error; + if (ctx) { + if (erl_zlib_inflate_start(&ctx->u.uc.stream, bytes, size) != Z_OK) + return -1; + + ctx->u.uc.dbytes = state->extp; + ctx->u.uc.dleft = dest_len; + ctx->state = B2TUncompressChunk; + } + else { + uLongf dlen = dest_len; + if (erl_zlib_uncompress(state->extp, &dlen, bytes, size) != Z_OK + || dlen != dest_len) { + return -1; + } + } size = (Sint) dest_len; } - res = decoded_size(state->extp, state->extp + size, 0); - if (res < 0) - goto error; - return res; + state->extsize = size; + return 0; } static ERTS_INLINE void @@ -1117,7 +1280,7 @@ binary2term_abort(ErtsBinary2TermState *state) { if (state->exttmp) { state->exttmp = 0; - erts_free(ERTS_ALC_T_TMP, state->extp); + erts_free(ERTS_ALC_T_EXT_TERM_DATA, state->extp); } } @@ -1125,11 +1288,11 @@ static ERTS_INLINE Eterm binary2term_create(ErtsDistExternal *edep, ErtsBinary2TermState *state, Eterm **hpp, ErlOffHeap *ohp) { Eterm res; - if (!dec_term(edep, hpp, state->extp, ohp, &res)) + if (!dec_term(edep, hpp, state->extp, ohp, &res, NULL)) res = THE_NON_VALUE; if (state->exttmp) { state->exttmp = 0; - erts_free(ERTS_ALC_T_TMP, state->extp); + erts_free(ERTS_ALC_T_EXT_TERM_DATA, state->extp); } return res; } @@ -1137,7 +1300,18 @@ binary2term_create(ErtsDistExternal *edep, ErtsBinary2TermState *state, Eterm ** Sint erts_binary2term_prepare(ErtsBinary2TermState *state, byte *data, Sint data_size) { - return binary2term_prepare(state, data, data_size); + Sint res; + + if (binary2term_prepare(state, data, data_size, NULL) < 0 || + (res=decoded_size(state->extp, state->extp + state->extsize, 0, NULL)) < 0) { + + if (state->exttmp) + erts_free(ERTS_ALC_T_EXT_TERM_DATA, state->extp); + state->extp = NULL; + state->exttmp = 0; + return -1; + } + return res; } void @@ -1152,68 +1326,262 @@ erts_binary2term_create(ErtsBinary2TermState *state, Eterm **hpp, ErlOffHeap *oh return binary2term_create(NULL,state, hpp, ohp); } -BIF_RETTYPE binary_to_term_1(BIF_ALIST_1) +static void b2t_destroy_context(B2TContext* context) { - Sint heap_size; - Eterm res; + erts_free_aligned_binary_bytes_extra(context->aligned_alloc, + ERTS_ALC_T_EXT_TERM_DATA); + context->aligned_alloc = NULL; + binary2term_abort(&context->b2ts); + if (context->state == B2TUncompressChunk) { + erl_zlib_inflate_finish(&context->u.uc.stream); + } +} + +static void b2t_context_destructor(Binary *context_bin) +{ + B2TContext* ctx = (B2TContext*) ERTS_MAGIC_BIN_DATA(context_bin); + ASSERT(ERTS_MAGIC_BIN_DESTRUCTOR(context_bin) == b2t_context_destructor); + + b2t_destroy_context(ctx); +} + +static BIF_RETTYPE binary_to_term_trap_1(BIF_ALIST_1) +{ + Binary *context_bin = ((ProcBin *) binary_val(BIF_ARG_1))->val; + ASSERT(ERTS_MAGIC_BIN_DESTRUCTOR(context_bin) == b2t_context_destructor); + + return binary_to_term_int(BIF_P, 0, THE_NON_VALUE, context_bin, NULL, + THE_NON_VALUE, THE_NON_VALUE); +} + + +#define B2T_BYTES_PER_REDUCTION 128 +#define B2T_MEMCPY_FACTOR 8 + +/* Define for testing */ +/*#define EXTREME_B2T_TRAPPING 1*/ + +#ifdef EXTREME_B2T_TRAPPING +static unsigned b2t_rand(void) +{ + static unsigned prev = 17; + prev = (prev * 214013 + 2531011); + return prev; +} +#endif + + +static B2TContext* b2t_export_context(Process* p, B2TContext* src) +{ + Binary* context_b = erts_create_magic_binary(sizeof(B2TContext), + b2t_context_destructor); + B2TContext* ctx = ERTS_MAGIC_BIN_DATA(context_b); Eterm* hp; - Eterm* endp; - Sint size; - byte* bytes; - byte* temp_alloc = NULL; - ErtsBinary2TermState b2ts; + sys_memcpy(ctx, src, sizeof(B2TContext)); + if (ctx->state >= B2TDecode && ctx->u.dc.next == &src->u.dc.res) { + ctx->u.dc.next = &ctx->u.dc.res; + } + hp = HAlloc(p, PROC_BIN_SIZE); + ctx->trap_bin = erts_mk_magic_binary_term(&hp, &MSO(p), context_b); + return ctx; +} - if ((bytes = erts_get_aligned_binary_bytes(BIF_ARG_1, &temp_alloc)) == NULL) { - error: - erts_free_aligned_binary_bytes(temp_alloc); - BIF_ERROR(BIF_P, BADARG); +static BIF_RETTYPE binary_to_term_int(Process* p, Uint32 flags, Eterm bin, Binary* context_b, + Export *bif_init, Eterm arg0, Eterm arg1) +{ + BIF_RETTYPE ret_val; +#ifdef EXTREME_B2T_TRAPPING + SWord initial_reds = 1 + b2t_rand() % 4; +#else + SWord initial_reds = (Uint)(ERTS_BIF_REDS_LEFT(p) * B2T_BYTES_PER_REDUCTION); +#endif + B2TContext c_buff; + B2TContext *ctx; + int is_first_call; + + if (context_b == NULL) { + /* Setup enough to get started */ + is_first_call = 1; + ctx = &c_buff; + ctx->state = B2TPrepare; + ctx->aligned_alloc = NULL; + ctx->flags = flags; + ctx->bif = bif_init; + ctx->arg[0] = arg0; + ctx->arg[1] = arg1; + IF_DEBUG(ctx->trap_bin = THE_NON_VALUE;) + } else { + is_first_call = 0; + ctx = ERTS_MAGIC_BIN_DATA(context_b); + ASSERT(ctx->state != B2TPrepare); } - size = binary_size(BIF_ARG_1); + ctx->reds = initial_reds; + + do { + switch (ctx->state) { + case B2TPrepare: { + byte* bytes; + Uint bin_size; + bytes = erts_get_aligned_binary_bytes_extra(bin, + &ctx->aligned_alloc, + ERTS_ALC_T_EXT_TERM_DATA, + 0); + if (bytes == NULL) { + ctx->b2ts.exttmp = 0; + ctx->state = B2TBadArg; + break; + } + bin_size = binary_size(bin); + if (ctx->aligned_alloc) { + ctx->reds -= bin_size / 8; + } + if (binary2term_prepare(&ctx->b2ts, bytes, bin_size, ctx) < 0) { + ctx->state = B2TBadArg; + } + break; + } + case B2TUncompressChunk: { + uLongf chunk = ctx->reds; + int zret; + + if (chunk > ctx->u.uc.dleft) + chunk = ctx->u.uc.dleft; + zret = erl_zlib_inflate_chunk(&ctx->u.uc.stream, + ctx->u.uc.dbytes, &chunk); + ctx->u.uc.dbytes += chunk; + ctx->u.uc.dleft -= chunk; + if (zret == Z_OK && ctx->u.uc.dleft > 0) { + ctx->reds = 0; + } + else if (erl_zlib_inflate_finish(&ctx->u.uc.stream) == Z_OK + && zret == Z_STREAM_END + && ctx->u.uc.dleft == 0) { + ctx->reds -= chunk; + ctx->state = B2TSizeInit; + } + else { + ctx->state = B2TBadArg; + } + break; + } + case B2TSizeInit: + ctx->u.sc.ep = NULL; + ctx->state = B2TSize; + /*fall through*/ + case B2TSize: + ctx->heap_size = decoded_size(ctx->b2ts.extp, + ctx->b2ts.extp + ctx->b2ts.extsize, + 0, ctx); + break; + + case B2TDecodeInit: + if (ctx == &c_buff && ctx->b2ts.extsize > ctx->reds) { + /* dec_term will maybe trap, allocate space for magic bin + before result term to make it easy to trim with HRelease. + */ + ctx = b2t_export_context(p, &c_buff); + } + ctx->u.dc.ep = ctx->b2ts.extp; + ctx->u.dc.res = (Eterm) (UWord) NULL; + ctx->u.dc.next = &ctx->u.dc.res; + ctx->u.dc.hp_start = HAlloc(p, ctx->heap_size); + ctx->u.dc.hp = ctx->u.dc.hp_start; + ctx->u.dc.hp_end = ctx->u.dc.hp_start + ctx->heap_size; + ctx->u.dc.maps_head = NULL; + ctx->state = B2TDecode; + /*fall through*/ + case B2TDecode: + case B2TDecodeList: + case B2TDecodeTuple: + case B2TDecodeString: + case B2TDecodeBinary: { + ErtsDistExternal fakedep; + fakedep.flags = ctx->flags; + dec_term(&fakedep, NULL, NULL, &MSO(p), NULL, ctx); + break; + } + case B2TDecodeFail: + HRelease(p, ctx->u.dc.hp_end, ctx->u.dc.hp_start); + /*fall through*/ + case B2TBadArg: + BUMP_REDS(p, (initial_reds - ctx->reds) / B2T_BYTES_PER_REDUCTION); - heap_size = binary2term_prepare(&b2ts, bytes, size); - if (heap_size < 0) - goto error; + ASSERT(ctx->bif == bif_export[BIF_binary_to_term_1] + || ctx->bif == bif_export[BIF_binary_to_term_2]); - hp = HAlloc(BIF_P, heap_size); - endp = hp + heap_size; + if (is_first_call) + ERTS_BIF_PREP_ERROR(ret_val, p, BADARG); + else { + erts_set_gc_state(p, 1); + if (is_non_value(ctx->arg[1])) + ERTS_BIF_PREP_ERROR_TRAPPED1(ret_val, p, BADARG, ctx->bif, + ctx->arg[0]); + else + ERTS_BIF_PREP_ERROR_TRAPPED2(ret_val, p, BADARG, ctx->bif, + ctx->arg[0], ctx->arg[1]); + } + b2t_destroy_context(ctx); + return ret_val; + + case B2TDone: + b2t_destroy_context(ctx); - res = binary2term_create(NULL, &b2ts, &hp, &MSO(BIF_P)); + if (ctx->u.dc.hp > ctx->u.dc.hp_end) { + erl_exit(1, ":%s, line %d: heap overrun by %d words(s)\n", + __FILE__, __LINE__, ctx->u.dc.hp - ctx->u.dc.hp_end); + } + HRelease(p, ctx->u.dc.hp_end, ctx->u.dc.hp); + + if (!is_first_call) { + erts_set_gc_state(p, 1); + } + BUMP_REDS(p, (initial_reds - ctx->reds) / B2T_BYTES_PER_REDUCTION); + ERTS_BIF_PREP_RET(ret_val, ctx->u.dc.res); + return ret_val; - erts_free_aligned_binary_bytes(temp_alloc); + default: + ASSERT(!"Unknown state in binary_to_term"); + } + }while (ctx->reds > 0 || ctx->state >= B2TDone); - if (hp > endp) { - erl_exit(1, ":%s, line %d: heap overrun by %d words(s)\n", - __FILE__, __LINE__, hp-endp); + if (ctx == &c_buff) { + ASSERT(ctx->trap_bin == THE_NON_VALUE); + ctx = b2t_export_context(p, &c_buff); } + ASSERT(ctx->trap_bin != THE_NON_VALUE); - HRelease(BIF_P, endp, hp); + if (is_first_call) { + erts_set_gc_state(p, 0); + } + BUMP_ALL_REDS(p); - if (res == THE_NON_VALUE) - goto error; + ERTS_BIF_PREP_TRAP1(ret_val, &binary_to_term_trap_export, + p, ctx->trap_bin); - return res; + return ret_val; +} + +HIPE_WRAPPER_BIF_DISABLE_GC(binary_to_term, 1) + +BIF_RETTYPE binary_to_term_1(BIF_ALIST_1) +{ + return binary_to_term_int(BIF_P, 0, BIF_ARG_1, NULL, bif_export[BIF_binary_to_term_1], + BIF_ARG_1, THE_NON_VALUE); } +HIPE_WRAPPER_BIF_DISABLE_GC(binary_to_term, 2) + BIF_RETTYPE binary_to_term_2(BIF_ALIST_2) { - Sint heap_size; - Eterm res; Eterm opts; Eterm opt; - Eterm* hp; - Eterm* endp; - Sint size; - byte* bytes; - byte* temp_alloc = NULL; - ErtsBinary2TermState b2ts; - ErtsDistExternal fakedep; + Uint32 flags = 0; - fakedep.flags = 0; opts = BIF_ARG_2; while (is_list(opts)) { opt = CAR(list_val(opts)); if (opt == am_safe) { - fakedep.flags |= ERTS_DIST_EXT_BTT_SAFE; + flags |= ERTS_DIST_EXT_BTT_SAFE; } else { goto error; @@ -1224,35 +1592,11 @@ BIF_RETTYPE binary_to_term_2(BIF_ALIST_2) if (is_not_nil(opts)) goto error; - if ((bytes = erts_get_aligned_binary_bytes(BIF_ARG_1, &temp_alloc)) == NULL) { - error: - erts_free_aligned_binary_bytes(temp_alloc); - BIF_ERROR(BIF_P, BADARG); - } - size = binary_size(BIF_ARG_1); - - heap_size = binary2term_prepare(&b2ts, bytes, size); - if (heap_size < 0) - goto error; - - hp = HAlloc(BIF_P, heap_size); - endp = hp + heap_size; - - res = binary2term_create(&fakedep, &b2ts, &hp, &MSO(BIF_P)); - - erts_free_aligned_binary_bytes(temp_alloc); - - if (hp > endp) { - erl_exit(1, ":%s, line %d: heap overrun by %d words(s)\n", - __FILE__, __LINE__, hp-endp); - } + return binary_to_term_int(BIF_P, flags, BIF_ARG_1, NULL, bif_export[BIF_binary_to_term_2], + BIF_ARG_1, BIF_ARG_2); - HRelease(BIF_P, endp, hp); - - if (res == THE_NON_VALUE) - goto error; - - return res; +error: + BIF_ERROR(BIF_P, BADARG); } Eterm @@ -1284,9 +1628,9 @@ external_size_2(BIF_ALIST_2) if (tp[1] == am_minor_version && is_small(tp[2])) { switch (signed_val(tp[2])) { case 0: + flags &= ~DFLAG_NEW_FLOATS; break; case 1: - flags |= DFLAG_NEW_FLOATS; break; default: goto error; @@ -1313,16 +1657,13 @@ external_size_2(BIF_ALIST_2) } } -Eterm -erts_term_to_binary(Process* p, Eterm Term, int level, Uint flags) +static Eterm +erts_term_to_binary_simple(Process* p, Eterm Term, Uint size, int level, Uint flags) { - Uint size; Eterm bin; size_t real_size; byte* endp; - size = encode_size_struct2(NULL, Term, flags) + 1 /* VERSION_MAGIC */; - if (level != 0) { byte buf[256]; byte* bytes = buf; @@ -1392,6 +1733,336 @@ erts_term_to_binary(Process* p, Eterm Term, int level, Uint flags) } } +Eterm +erts_term_to_binary(Process* p, Eterm Term, int level, Uint flags) { + Uint size; + size = encode_size_struct2(NULL, Term, flags) + 1 /* VERSION_MAGIC */; + return erts_term_to_binary_simple(p, Term, size, level, flags); +} + +/* Define for testing */ +/* #define EXTREME_TTB_TRAPPING 1 */ + +#ifndef EXTREME_TTB_TRAPPING +#define TERM_TO_BINARY_LOOP_FACTOR 32 +#define TERM_TO_BINARY_COMPRESS_CHUNK (1 << 18) +#else +#define TERM_TO_BINARY_LOOP_FACTOR 1 +#define TERM_TO_BINARY_COMPRESS_CHUNK 10 +#endif + + +typedef enum { TTBSize, TTBEncode, TTBCompress } TTBState; +typedef struct TTBSizeContext_ { + Uint flags; + int level; + Uint result; + Eterm obj; + ErtsEStack estack; +} TTBSizeContext; + +typedef struct TTBEncodeContext_ { + Uint flags; + int level; + byte* ep; + Eterm obj; + ErtsWStack wstack; + Binary *result_bin; +} TTBEncodeContext; + +typedef struct { + Uint real_size; + Uint dest_len; + byte *dbytes; + Binary *result_bin; + Binary *destination_bin; + z_stream stream; +} TTBCompressContext; + +typedef struct { + int alive; + TTBState state; + union { + TTBSizeContext sc; + TTBEncodeContext ec; + TTBCompressContext cc; + } s; +} TTBContext; + +static void ttb_context_destructor(Binary *context_bin) +{ + TTBContext *context = ERTS_MAGIC_BIN_DATA(context_bin); + if (context->alive) { + context->alive = 0; + switch (context->state) { + case TTBSize: + DESTROY_SAVED_ESTACK(&context->s.sc.estack); + break; + case TTBEncode: + DESTROY_SAVED_WSTACK(&context->s.ec.wstack); + if (context->s.ec.result_bin != NULL) { /* Set to NULL if ever made alive! */ + ASSERT(erts_refc_read(&(context->s.ec.result_bin->refc),0) == 0); + erts_bin_free(context->s.ec.result_bin); + context->s.ec.result_bin = NULL; + } + break; + case TTBCompress: + erl_zlib_deflate_finish(&(context->s.cc.stream)); + + if (context->s.cc.destination_bin != NULL) { /* Set to NULL if ever made alive! */ + ASSERT(erts_refc_read(&(context->s.cc.destination_bin->refc),0) == 0); + erts_bin_free(context->s.cc.destination_bin); + context->s.cc.destination_bin = NULL; + } + + if (context->s.cc.result_bin != NULL) { /* Set to NULL if ever made alive! */ + ASSERT(erts_refc_read(&(context->s.cc.result_bin->refc),0) == 0); + erts_bin_free(context->s.cc.result_bin); + context->s.cc.result_bin = NULL; + } + break; + } + } +} + +static Eterm erts_term_to_binary_int(Process* p, Eterm Term, int level, Uint flags, + Binary *context_b) +{ + Eterm *hp; + Eterm res; + Eterm c_term; +#ifndef EXTREME_TTB_TRAPPING + Sint reds = (Sint) (ERTS_BIF_REDS_LEFT(p) * TERM_TO_BINARY_LOOP_FACTOR); +#else + Sint reds = 20; /* For testing */ +#endif + Sint initial_reds = reds; + TTBContext c_buff; + TTBContext *context = &c_buff; + +#define EXPORT_CONTEXT() \ + do { \ + if (context_b == NULL) { \ + context_b = erts_create_magic_binary(sizeof(TTBContext), \ + ttb_context_destructor); \ + context = ERTS_MAGIC_BIN_DATA(context_b); \ + memcpy(context,&c_buff,sizeof(TTBContext)); \ + } \ + } while (0) + +#define RETURN_STATE() \ + do { \ + hp = HAlloc(p, PROC_BIN_SIZE+3); \ + c_term = erts_mk_magic_binary_term(&hp, &MSO(p), context_b); \ + res = TUPLE2(hp, Term, c_term); \ + BUMP_ALL_REDS(p); \ + return res; \ + } while (0); + + + if (context_b == NULL) { + /* Setup enough to get started */ + context->state = TTBSize; + context->alive = 1; + context->s.sc.estack.start = NULL; + context->s.sc.flags = flags; + context->s.sc.level = level; + } else { + context = ERTS_MAGIC_BIN_DATA(context_b); + } + /* Initialization done, now we will go through the states */ + for (;;) { + switch (context->state) { + case TTBSize: + { + Uint size; + Binary *result_bin; + int level; + Uint flags; + /* Try for fast path */ + if (encode_size_struct_int(&context->s.sc, NULL, Term, + context->s.sc.flags, &reds, &size) < 0) { + EXPORT_CONTEXT(); + /* Same state */ + RETURN_STATE(); + } + ++size; /* VERSION_MAGIC */ + /* Move these to next state */ + flags = context->s.sc.flags; + level = context->s.sc.level; + if (size <= ERL_ONHEAP_BIN_LIMIT) { + /* Finish in one go */ + res = erts_term_to_binary_simple(p, Term, size, + level, flags); + BUMP_REDS(p, 1); + return res; + } + + result_bin = erts_bin_nrml_alloc(size); + result_bin->flags = 0; + result_bin->orig_size = size; + erts_refc_init(&result_bin->refc, 0); + result_bin->orig_bytes[0] = VERSION_MAGIC; + /* Next state immediately, no need to export context */ + context->state = TTBEncode; + context->s.ec.flags = flags; + context->s.ec.level = level; + context->s.ec.wstack.wstart = NULL; + context->s.ec.result_bin = result_bin; + break; + } + case TTBEncode: + { + byte *endp; + byte *bytes = (byte *) context->s.ec.result_bin->orig_bytes; + size_t real_size; + Binary *result_bin; + + flags = context->s.ec.flags; + if (enc_term_int(&context->s.ec, NULL,Term, bytes+1, flags, NULL, &reds, &endp) < 0) { + EXPORT_CONTEXT(); + RETURN_STATE(); + } + real_size = endp - bytes; + result_bin = erts_bin_realloc(context->s.ec.result_bin,real_size); + level = context->s.ec.level; + BUMP_REDS(p, (initial_reds - reds) / TERM_TO_BINARY_LOOP_FACTOR); + if (level == 0 || real_size < 6) { /* We are done */ + ProcBin* pb; + return_normal: + context->s.ec.result_bin = NULL; + context->alive = 0; + pb = (ProcBin *) HAlloc(p, PROC_BIN_SIZE); + pb->thing_word = HEADER_PROC_BIN; + pb->size = real_size; + pb->next = MSO(p).first; + MSO(p).first = (struct erl_off_heap_header*)pb; + pb->val = result_bin; + pb->bytes = (byte*) result_bin->orig_bytes; + pb->flags = 0; + OH_OVERHEAD(&(MSO(p)), pb->size / sizeof(Eterm)); + erts_refc_inc(&result_bin->refc, 1); + if (context_b && erts_refc_read(&context_b->refc,0) == 0) { + erts_bin_free(context_b); + } + return make_binary(pb); + } + /* Continue with compression... */ + /* To make absolutely sure that zlib does not barf on a reallocated context, + we make sure it's "exported" before doing anything compession-like */ + EXPORT_CONTEXT(); + bytes = (byte *) result_bin->orig_bytes; /* result_bin is reallocated */ + if (erl_zlib_deflate_start(&(context->s.cc.stream),bytes+1,real_size-1,level) + != Z_OK) { + goto return_normal; + } + context->state = TTBCompress; + context->s.cc.real_size = real_size; + context->s.cc.result_bin = result_bin; + + result_bin = erts_bin_nrml_alloc(real_size); + result_bin->flags = 0; + result_bin->orig_size = real_size; + erts_refc_init(&result_bin->refc, 0); + result_bin->orig_bytes[0] = VERSION_MAGIC; + + context->s.cc.destination_bin = result_bin; + context->s.cc.dest_len = 0; + context->s.cc.dbytes = (byte *) result_bin->orig_bytes+6; + break; + } + case TTBCompress: + { + uLongf tot_dest_len = context->s.cc.real_size - 6; + uLongf left = (tot_dest_len - context->s.cc.dest_len); + uLongf this_time = (left > TERM_TO_BINARY_COMPRESS_CHUNK) ? + TERM_TO_BINARY_COMPRESS_CHUNK : + left; + Binary *result_bin; + ProcBin *pb; + Uint max = (ERTS_BIF_REDS_LEFT(p) * TERM_TO_BINARY_COMPRESS_CHUNK) / CONTEXT_REDS; + + if (max < this_time) { + this_time = max + 1; /* do not set this_time to 0 */ + } + + res = erl_zlib_deflate_chunk(&(context->s.cc.stream), context->s.cc.dbytes, &this_time); + context->s.cc.dbytes += this_time; + context->s.cc.dest_len += this_time; + switch (res) { + case Z_OK: + if (context->s.cc.dest_len >= tot_dest_len) { + goto no_use_compressing; + } + RETURN_STATE(); + case Z_STREAM_END: + { + byte *dbytes = (byte *) context->s.cc.destination_bin->orig_bytes + 1; + + dbytes[0] = COMPRESSED; + put_int32(context->s.cc.real_size-1,dbytes+1); + erl_zlib_deflate_finish(&(context->s.cc.stream)); + result_bin = erts_bin_realloc(context->s.cc.destination_bin, + context->s.cc.dest_len+6); + context->s.cc.destination_bin = NULL; + pb = (ProcBin *) HAlloc(p, PROC_BIN_SIZE); + pb->thing_word = HEADER_PROC_BIN; + pb->size = context->s.cc.dest_len+6; + pb->next = MSO(p).first; + MSO(p).first = (struct erl_off_heap_header*)pb; + pb->val = result_bin; + pb->bytes = (byte*) result_bin->orig_bytes; + pb->flags = 0; + OH_OVERHEAD(&(MSO(p)), pb->size / sizeof(Eterm)); + erts_refc_inc(&result_bin->refc, 1); + erts_bin_free(context->s.cc.result_bin); + context->s.cc.result_bin = NULL; + context->alive = 0; + BUMP_REDS(p, (this_time * CONTEXT_REDS) / TERM_TO_BINARY_COMPRESS_CHUNK); + if (context_b && erts_refc_read(&context_b->refc,0) == 0) { + erts_bin_free(context_b); + } + return make_binary(pb); + } + default: /* Compression error, revert to uncompressed binary (still in + context) */ + no_use_compressing: + result_bin = context->s.cc.result_bin; + context->s.cc.result_bin = NULL; + pb = (ProcBin *) HAlloc(p, PROC_BIN_SIZE); + pb->thing_word = HEADER_PROC_BIN; + pb->size = context->s.cc.real_size; + pb->next = MSO(p).first; + MSO(p).first = (struct erl_off_heap_header*)pb; + pb->val = result_bin; + pb->bytes = (byte*) result_bin->orig_bytes; + pb->flags = 0; + OH_OVERHEAD(&(MSO(p)), pb->size / sizeof(Eterm)); + erts_refc_inc(&result_bin->refc, 1); + erl_zlib_deflate_finish(&(context->s.cc.stream)); + erts_bin_free(context->s.cc.destination_bin); + context->s.cc.destination_bin = NULL; + context->alive = 0; + BUMP_REDS(p, (this_time * CONTEXT_REDS) / TERM_TO_BINARY_COMPRESS_CHUNK); + if (context_b && erts_refc_read(&context_b->refc,0) == 0) { + erts_bin_free(context_b); + } + return make_binary(pb); + } + } + } + } +#undef EXPORT_CONTEXT +#undef RETURN_STATE +} + + + + + + + + /* * This function fills ext with the external format of atom. * If it's an old atom we just supply an index, otherwise @@ -1404,11 +2075,12 @@ static byte* enc_atom(ErtsAtomCacheMap *acmp, Eterm atom, byte *ep, Uint32 dflags) { int iix; - int i, j; + int len; + int utf8_atoms = (int) (dflags & DFLAG_UTF8_ATOMS); ASSERT(is_atom(atom)); - if (dflags & DFLAGS_INTERNAL_TAGS) { + if (dflags & DFLAG_INTERNAL_TAGS) { Uint aval = atom_val(atom); ASSERT(aval < (1<<24)); if (aval >= (1 << 16)) { @@ -1423,27 +2095,56 @@ enc_atom(ErtsAtomCacheMap *acmp, Eterm atom, byte *ep, Uint32 dflags) } return ep; } + /* * term_to_binary/1,2 and the initial distribution message * don't use the cache. */ - iix = get_iix_acache_map(acmp, atom); - if (iix < 0) { - i = atom_val(atom); - j = atom_tab(i)->len; - if ((MAX_ATOM_LENGTH <= 255 || j <= 255) - && (dflags & DFLAG_SMALL_ATOM_TAGS)) { - *ep++ = SMALL_ATOM_EXT; - put_int8(j, ep); - ep++; + + iix = get_iix_acache_map(acmp, atom, dflags); + if (iix < 0) { + Atom *a = atom_tab(atom_val(atom)); + len = a->len; + if (utf8_atoms || a->latin1_chars < 0) { + if (len > 255) { + *ep++ = ATOM_UTF8_EXT; + put_int16(len, ep); + ep += 2; + } + else { + *ep++ = SMALL_ATOM_UTF8_EXT; + put_int8(len, ep); + ep += 1; + } + sys_memcpy((char *) ep, (char *) a->name, len); } else { - *ep++ = ATOM_EXT; - put_int16(j, ep); - ep += 2; + if (a->latin1_chars <= 255 && (dflags & DFLAG_SMALL_ATOM_TAGS)) { + *ep++ = SMALL_ATOM_EXT; + if (len == a->latin1_chars) { + sys_memcpy(ep+1, a->name, len); + } + else { + len = erts_utf8_to_latin1(ep+1, a->name, len); + ASSERT(len == a->latin1_chars); + } + put_int8(len, ep); + ep++; + } + else { + *ep++ = ATOM_EXT; + if (len == a->latin1_chars) { + sys_memcpy(ep+2, a->name, len); + } + else { + len = erts_utf8_to_latin1(ep+2, a->name, len); + ASSERT(len == a->latin1_chars); + } + put_int16(len, ep); + ep += 2; + } } - sys_memcpy((char *) ep, (char*)atom_tab(i)->name, (int) j); - ep += j; + ep += len; return ep; } @@ -1472,7 +2173,7 @@ enc_pid(ErtsAtomCacheMap *acmp, Eterm pid, byte* ep, Uint32 dflags) ep += 4; put_int32(os, ep); ep += 4; - *ep++ = (is_internal_pid(pid) && (dflags & DFLAGS_INTERNAL_TAGS)) ? + *ep++ = (is_internal_pid(pid) && (dflags & DFLAG_INTERNAL_TAGS)) ? INTERNAL_CREATION : pid_creation(pid); return ep; } @@ -1483,6 +2184,7 @@ dec_atom(ErtsDistExternal *edep, byte* ep, Eterm* objp) { Uint len; int n; + ErtsAtomEncoding char_enc; switch (*ep++) { case ATOM_CACHE_REF: @@ -1498,17 +2200,32 @@ dec_atom(ErtsDistExternal *edep, byte* ep, Eterm* objp) case ATOM_EXT: len = get_int16(ep), ep += 2; + char_enc = ERTS_ATOM_ENC_LATIN1; goto dec_atom_common; case SMALL_ATOM_EXT: len = get_int8(ep); ep++; + char_enc = ERTS_ATOM_ENC_LATIN1; + goto dec_atom_common; + case ATOM_UTF8_EXT: + len = get_int16(ep), + ep += 2; + char_enc = ERTS_ATOM_ENC_UTF8; + goto dec_atom_common; + case SMALL_ATOM_UTF8_EXT: + len = get_int8(ep), + ep++; + char_enc = ERTS_ATOM_ENC_UTF8; dec_atom_common: if (edep && (edep->flags & ERTS_DIST_EXT_BTT_SAFE)) { - if (!erts_atom_get((char*)ep, len, objp)) { + if (!erts_atom_get((char*)ep, len, objp, char_enc)) { goto error; } } else { - *objp = am_atom_put((char*)ep, len); + Eterm atom = erts_atom_put(ep, len, char_enc, 0); + if (is_non_value(atom)) + goto error; + *objp = atom; } ep += len; break; @@ -1610,10 +2327,20 @@ dec_pid(ErtsDistExternal *edep, Eterm** hpp, byte* ep, ErlOffHeap* off_heap, Ete #define ENC_PATCH_FUN_SIZE ((Eterm) 2) #define ENC_LAST_ARRAY_ELEMENT ((Eterm) 3) + static byte* enc_term(ErtsAtomCacheMap *acmp, Eterm obj, byte* ep, Uint32 dflags, struct erl_off_heap_header** off_heap) { + byte *res; + (void) enc_term_int(NULL, acmp, obj, ep, dflags, off_heap, NULL, &res); + return res; +} + +static int +enc_term_int(TTBEncodeContext* ctx, ErtsAtomCacheMap *acmp, Eterm obj, byte* ep, Uint32 dflags, + struct erl_off_heap_header** off_heap, Sint *reds, byte **res) +{ DECLARE_WSTACK(s); Uint n; Uint i; @@ -1621,11 +2348,23 @@ enc_term(ErtsAtomCacheMap *acmp, Eterm obj, byte* ep, Uint32 dflags, Uint* ptr; Eterm val; FloatDef f; + Sint r = 0; #if HALFWORD_HEAP UWord wobj; #endif + if (ctx) { + WSTACK_CHANGE_ALLOCATOR(s, ERTS_ALC_T_SAVED_ESTACK); + r = *reds; + + if (ctx->wstack.wstart) { /* restore saved stacks and byte pointer */ + WSTACK_RESTORE(s, &ctx->wstack); + ep = ctx->ep; + obj = ctx->obj; + } + } + goto L_jump_start; outer_loop: @@ -1661,6 +2400,7 @@ enc_term(ErtsAtomCacheMap *acmp, Eterm obj, byte* ep, Uint32 dflags, } goto outer_loop; case ENC_LAST_ARRAY_ELEMENT: + /* obj is the tuple */ { #if HALFWORD_HEAP Eterm* ptr = (Eterm *) wobj; @@ -1677,14 +2417,22 @@ enc_term(ErtsAtomCacheMap *acmp, Eterm obj, byte* ep, Uint32 dflags, #else Eterm* ptr = (Eterm *) obj; #endif - obj = *ptr++; WSTACK_PUSH(s, val-1); - WSTACK_PUSH(s, (UWord) ptr); + obj = *ptr++; + WSTACK_PUSH(s, (UWord)ptr); } break; } L_jump_start: + + if (ctx && --r == 0) { + *reds = r; + ctx->obj = obj; + ctx->ep = ep; + WSTACK_SAVE(s, &ctx->wstack); + return -1; + } switch(tag_val_def(obj)) { case NIL_DEF: *ep++ = NIL_EXT; @@ -1770,7 +2518,7 @@ enc_term(ErtsAtomCacheMap *acmp, Eterm obj, byte* ep, Uint32 dflags, put_int16(i, ep); ep += 2; ep = enc_atom(acmp,ref_node_name(obj),ep,dflags); - *ep++ = ((dflags & DFLAGS_INTERNAL_TAGS) && is_internal_ref(obj)) ? + *ep++ = ((dflags & DFLAG_INTERNAL_TAGS) && is_internal_ref(obj)) ? INTERNAL_CREATION : ref_creation(obj); ref_num = ref_numbers(obj); for (j = 0; j < i; j++) { @@ -1787,7 +2535,7 @@ enc_term(ErtsAtomCacheMap *acmp, Eterm obj, byte* ep, Uint32 dflags, j = port_number(obj); put_int32(j, ep); ep += 4; - *ep++ = ((dflags & DFLAGS_INTERNAL_TAGS) && is_internal_port(obj)) ? + *ep++ = ((dflags & DFLAG_INTERNAL_TAGS) && is_internal_port(obj)) ? INTERNAL_CREATION : port_creation(obj); break; @@ -1829,7 +2577,35 @@ enc_term(ErtsAtomCacheMap *acmp, Eterm obj, byte* ep, Uint32 dflags, } if (i > 0) { WSTACK_PUSH(s, ENC_LAST_ARRAY_ELEMENT+i-1); - WSTACK_PUSH(s, (UWord) ptr); + WSTACK_PUSH(s, (UWord)ptr); + } + break; + + case MAP_DEF: + { + map_t *mp = (map_t*)map_val(obj); + Uint size = map_get_size(mp); + + *ep++ = MAP_EXT; + put_int32(size, ep); ep += 4; + + if (size > 0) { + Eterm *kptr = map_get_keys(mp); + Eterm *vptr = map_get_values(mp); + + for (i = size-1; i >= 1; i--) { + WSTACK_PUSH(s, ENC_TERM); + WSTACK_PUSH(s, (UWord) vptr[i]); + WSTACK_PUSH(s, ENC_TERM); + WSTACK_PUSH(s, (UWord) kptr[i]); + } + + WSTACK_PUSH(s, ENC_TERM); + WSTACK_PUSH(s, (UWord) vptr[0]); + + obj = kptr[0]; + goto L_jump_start; + } } break; @@ -1837,7 +2613,7 @@ enc_term(ErtsAtomCacheMap *acmp, Eterm obj, byte* ep, Uint32 dflags, GET_DOUBLE(obj, f); if (dflags & DFLAG_NEW_FLOATS) { *ep++ = NEW_FLOAT_EXT; -#ifdef WORDS_BIGENDIAN +#if defined(WORDS_BIGENDIAN) || defined(DOUBLE_MIDDLE_ENDIAN) put_int32(f.fw[0], ep); ep += 4; put_int32(f.fw[1], ep); @@ -1850,8 +2626,8 @@ enc_term(ErtsAtomCacheMap *acmp, Eterm obj, byte* ep, Uint32 dflags, } else { *ep++ = FLOAT_EXT; - /* now the sprintf which does the work */ - i = sys_double_to_chars(f.fd, (char*) ep); + /* now the erts_snprintf which does the work */ + i = sys_double_to_chars(f.fd, (char*) ep, (size_t)31); /* Don't leave garbage after the float! (Bad practice in general, * and Purify complains.) @@ -1868,7 +2644,7 @@ enc_term(ErtsAtomCacheMap *acmp, Eterm obj, byte* ep, Uint32 dflags, byte* bytes; ERTS_GET_BINARY_BYTES(obj, bytes, bitoffs, bitsize); - if (dflags & DFLAGS_INTERNAL_TAGS) { + if (dflags & DFLAG_INTERNAL_TAGS) { ProcBin* pb = (ProcBin*) binary_val(obj); Uint bytesize = pb->size; if (pb->thing_word == HEADER_SUB_BIN) { @@ -2036,7 +2812,12 @@ enc_term(ErtsAtomCacheMap *acmp, Eterm obj, byte* ep, Uint32 dflags, } } DESTROY_WSTACK(s); - return ep; + if (ctx) { + ASSERT(ctx->wstack.wstart == NULL); + *reds = r; + } + *res = ep; + return 0; } static @@ -2106,20 +2887,115 @@ undo_offheap_in_area(ErlOffHeap* off_heap, Eterm* start, Eterm* end) #endif /* DEBUG */ } + /* Decode term from external format into *objp. ** On failure return NULL and (R13B04) *hpp will be unchanged. */ static byte* -dec_term(ErtsDistExternal *edep, Eterm** hpp, byte* ep, ErlOffHeap* off_heap, Eterm* objp) +dec_term(ErtsDistExternal *edep, Eterm** hpp, byte* ep, ErlOffHeap* off_heap, + Eterm* objp, B2TContext* ctx) { - Eterm* hp_saved = *hpp; + Eterm* hp_saved; int n; - register Eterm* hp = *hpp; /* Please don't take the address of hp */ - Eterm* next = objp; + ErtsAtomEncoding char_enc; + register Eterm* hp; /* Please don't take the address of hp */ + Eterm *maps_head; /* for validation of maps */ + Eterm* next; + SWord reds; + + if (ctx) { + hp_saved = ctx->u.dc.hp_start; + reds = ctx->reds; + next = ctx->u.dc.next; + ep = ctx->u.dc.ep; + hpp = &ctx->u.dc.hp; + maps_head = ctx->u.dc.maps_head; + + if (ctx->state != B2TDecode) { + int n_limit = reds; + + n = ctx->u.dc.remaining_n; + if (ctx->state == B2TDecodeBinary) { + n_limit *= B2T_MEMCPY_FACTOR; + ASSERT(n_limit >= reds); + reds -= n / B2T_MEMCPY_FACTOR; + } + else + reds -= n; - *next = (Eterm) (UWord) NULL; + if (n > n_limit) { + ctx->u.dc.remaining_n -= n_limit; + n = n_limit; + reds = 0; + } + else { + ctx->u.dc.remaining_n = 0; + } + + switch (ctx->state) { + case B2TDecodeList: + objp = next - 2; + while (n > 0) { + objp[0] = (Eterm) COMPRESS_POINTER(next); + objp[1] = make_list(next); + next = objp; + objp -= 2; + n--; + } + break; + + case B2TDecodeTuple: + objp = next - 1; + while (n-- > 0) { + objp[0] = (Eterm) COMPRESS_POINTER(next); + next = objp; + objp--; + } + break; + + case B2TDecodeString: + hp = *hpp; + hp[-1] = make_list(hp); /* overwrite the premature NIL */ + while (n-- > 0) { + hp[0] = make_small(*ep++); + hp[1] = make_list(hp+2); + hp += 2; + } + hp[-1] = NIL; + *hpp = hp; + break; + + case B2TDecodeBinary: + sys_memcpy(ctx->u.dc.remaining_bytes, ep, n); + ctx->u.dc.remaining_bytes += n; + ep += n; + break; + + default: + ASSERT(!"Unknown state"); + } + if (!ctx->u.dc.remaining_n) { + ctx->state = B2TDecode; + } + if (reds <= 0) { + ctx->u.dc.next = next; + ctx->u.dc.ep = ep; + ctx->reds = 0; + return NULL; + } + } + } + else { + hp_saved = *hpp; + reds = ERTS_SWORD_MAX; + next = objp; + *next = (Eterm) (UWord) NULL; + maps_head = NULL; + } + hp = *hpp; while (next != NULL) { + objp = next; next = (Eterm *) EXPAND_POINTER(*objp); @@ -2199,17 +3075,32 @@ dec_term(ErtsDistExternal *edep, Eterm** hpp, byte* ep, ErlOffHeap* off_heap, Et case ATOM_EXT: n = get_int16(ep); ep += 2; - goto dec_term_atom_common; + char_enc = ERTS_ATOM_ENC_LATIN1; + goto dec_term_atom_common; case SMALL_ATOM_EXT: n = get_int8(ep); ep++; + char_enc = ERTS_ATOM_ENC_LATIN1; + goto dec_term_atom_common; + case ATOM_UTF8_EXT: + n = get_int16(ep); + ep += 2; + char_enc = ERTS_ATOM_ENC_UTF8; + goto dec_term_atom_common; + case SMALL_ATOM_UTF8_EXT: + n = get_int8(ep); + ep++; + char_enc = ERTS_ATOM_ENC_UTF8; dec_term_atom_common: if (edep && (edep->flags & ERTS_DIST_EXT_BTT_SAFE)) { - if (!erts_atom_get((char*)ep, n, objp)) { + if (!erts_atom_get((char*)ep, n, objp, char_enc)) { goto error; } } else { - *objp = am_atom_put((char*)ep, n); + Eterm atom = erts_atom_put(ep, n, char_enc, 0); + if (is_non_value(atom)) + goto error; + *objp = atom; } ep += n; break; @@ -2224,7 +3115,16 @@ dec_term_atom_common: *objp = make_tuple(hp); *hp++ = make_arityval(n); hp += n; - objp = hp - 1; + objp = hp - 1; + if (ctx) { + if (reds < n) { + ASSERT(reds > 0); + ctx->state = B2TDecodeTuple; + ctx->u.dc.remaining_n = n - reds; + n = reds; + } + reds -= n; + } while (n-- > 0) { objp[0] = (Eterm) COMPRESS_POINTER(next); next = objp; @@ -2242,17 +3142,27 @@ dec_term_atom_common: break; } *objp = make_list(hp); - hp += 2*n; + hp += 2 * n; objp = hp - 2; objp[0] = (Eterm) COMPRESS_POINTER((objp+1)); objp[1] = (Eterm) COMPRESS_POINTER(next); next = objp; objp -= 2; - while (--n > 0) { + n--; + if (ctx) { + if (reds < n) { + ctx->state = B2TDecodeList; + ctx->u.dc.remaining_n = n - reds; + n = reds; + } + reds -= n; + } + while (n > 0) { objp[0] = (Eterm) COMPRESS_POINTER(next); - objp[1] = make_list(objp + 2); + objp[1] = make_list(next); next = objp; objp -= 2; + n--; } break; case STRING_EXT: @@ -2263,6 +3173,14 @@ dec_term_atom_common: break; } *objp = make_list(hp); + if (ctx) { + if (reds < n) { + ctx->state = B2TDecodeString; + ctx->u.dc.remaining_n = n - reds; + n = reds; + } + reds -= n; + } while (n-- > 0) { hp[0] = make_small(*ep++); hp[1] = make_list(hp+2); @@ -2290,7 +3208,7 @@ dec_term_atom_common: volatile unsigned long *fpexnp = erts_get_current_fp_exception(); #endif -#ifdef WORDS_BIGENDIAN +#if defined(WORDS_BIGENDIAN) || defined(DOUBLE_MIDDLE_ENDIAN) ff.fw[0] = get_int32(ep); ep += 4; ff.fw[1] = get_int32(ep); @@ -2456,7 +3374,7 @@ dec_term_atom_common: n = get_int32(ep); ep += 4; - if (n <= ERL_ONHEAP_BIN_LIMIT) { + if ((unsigned)n <= ERL_ONHEAP_BIN_LIMIT) { ErlHeapBin* hb = (ErlHeapBin *) hp; hb->thing_word = header_heap_bin(n); @@ -2470,7 +3388,6 @@ dec_term_atom_common: dbin->flags = 0; dbin->orig_size = n; erts_refc_init(&dbin->refc, 1); - sys_memcpy(dbin->orig_bytes, ep, n); pb = (ProcBin *) hp; hp += PROC_BIN_SIZE; pb->thing_word = HEADER_PROC_BIN; @@ -2481,7 +3398,20 @@ dec_term_atom_common: pb->bytes = (byte*) dbin->orig_bytes; pb->flags = 0; *objp = make_binary(pb); - } + if (ctx) { + int n_limit = reds * B2T_MEMCPY_FACTOR; + if (n > n_limit) { + ctx->state = B2TDecodeBinary; + ctx->u.dc.remaining_n = n - n_limit; + ctx->u.dc.remaining_bytes = dbin->orig_bytes + n_limit; + n = n_limit; + reds = 0; + } + else + reds -= n / B2T_MEMCPY_FACTOR; + } + sys_memcpy(dbin->orig_bytes, ep, n); + } ep += n; break; } @@ -2493,8 +3423,10 @@ dec_term_atom_common: n = get_int32(ep); bitsize = ep[4]; - ep += 5; - if (n <= ERL_ONHEAP_BIN_LIMIT) { + if (((bitsize==0) != (n==0)) || bitsize > 8) + goto error; + ep += 5; + if ((unsigned)n <= ERL_ONHEAP_BIN_LIMIT) { ErlHeapBin* hb = (ErlHeapBin *) hp; hb->thing_word = header_heap_bin(n); @@ -2502,13 +3434,14 @@ dec_term_atom_common: sys_memcpy(hb->data, ep, n); bin = make_binary(hb); hp += heap_bin_size(n); + ep += n; } else { Binary* dbin = erts_bin_nrml_alloc(n); ProcBin* pb; + dbin->flags = 0; dbin->orig_size = n; erts_refc_init(&dbin->refc, 1); - sys_memcpy(dbin->orig_bytes, ep, n); pb = (ProcBin *) hp; pb->thing_word = HEADER_PROC_BIN; pb->size = n; @@ -2519,12 +3452,27 @@ dec_term_atom_common: pb->flags = 0; bin = make_binary(pb); hp += PROC_BIN_SIZE; - } - ep += n; - if (bitsize == 0) { + if (ctx) { + int n_limit = reds * B2T_MEMCPY_FACTOR; + if (n > n_limit) { + ctx->state = B2TDecodeBinary; + ctx->u.dc.remaining_n = n - n_limit; + ctx->u.dc.remaining_bytes = dbin->orig_bytes + n_limit; + n = n_limit; + reds = 0; + } + else + reds -= n / B2T_MEMCPY_FACTOR; + } + sys_memcpy(dbin->orig_bytes, ep, n); + ep += n; + n = pb->size; + } + + if (bitsize == 8 || n == 0) { *objp = bin; } else { - sb = (ErlSubBin *) hp; + sb = (ErlSubBin *)hp; sb->thing_word = HEADER_SUB_BIN; sb->orig = bin; sb->size = n - 1; @@ -2551,7 +3499,7 @@ dec_term_atom_common: goto error; } *hpp = hp; - ep = dec_term(edep, hpp, ep, off_heap, &temp); + ep = dec_term(edep, hpp, ep, off_heap, &temp, NULL); hp = *hpp; if (ep == NULL) { goto error; @@ -2564,7 +3512,7 @@ dec_term_atom_common: goto error; } if (edep && (edep->flags & ERTS_DIST_EXT_BTT_SAFE)) { - if (!erts_find_export_entry(mod, name, arity)) + if (!erts_active_export_entry(mod, name, arity)) goto error; } *objp = make_export(hp); @@ -2578,6 +3526,50 @@ dec_term_atom_common: break; } break; + case MAP_EXT: + { + map_t *mp; + Uint32 size,n; + Eterm *kptr,*vptr; + Eterm keys; + + size = get_int32(ep); ep += 4; + + keys = make_tuple(hp); + *hp++ = make_arityval(size); + hp += size; + kptr = hp - 1; + + mp = (map_t*)hp; + hp += MAP_HEADER_SIZE; + hp += size; + vptr = hp - 1; + + /* kptr, last word for keys + * vptr, last word for values + */ + + /* + * Use thing_word to link through decoded maps. + * The list of maps is for later validation. + */ + + mp->thing_word = (Eterm) COMPRESS_POINTER(maps_head); + maps_head = (Eterm *) mp; + + mp->size = size; + mp->keys = keys; + *objp = make_map(mp); + + for (n = size; n; n--) { + *vptr = (Eterm) COMPRESS_POINTER(next); + *kptr = (Eterm) COMPRESS_POINTER(vptr); + next = kptr; + vptr--; + kptr--; + } + } + break; case NEW_FUN_EXT: { ErlFunThing* funp = (ErlFunThing *) hp; @@ -2611,7 +3603,7 @@ dec_term_atom_common: } *hpp = hp; /* Index */ - if ((ep = dec_term(edep, hpp, ep, off_heap, &temp)) == NULL) { + if ((ep = dec_term(edep, hpp, ep, off_heap, &temp, NULL)) == NULL) { goto error; } if (!is_small(temp)) { @@ -2620,7 +3612,7 @@ dec_term_atom_common: old_index = unsigned_val(temp); /* Uniq */ - if ((ep = dec_term(edep, hpp, ep, off_heap, &temp)) == NULL) { + if ((ep = dec_term(edep, hpp, ep, off_heap, &temp, NULL)) == NULL) { goto error; } if (!is_small(temp)) { @@ -2688,7 +3680,7 @@ dec_term_atom_common: } /* Index */ - if ((ep = dec_term(edep, hpp, ep, off_heap, &temp)) == NULL) { + if ((ep = dec_term(edep, hpp, ep, off_heap, &temp, NULL)) == NULL) { goto error; } if (!is_small(temp)) { @@ -2697,7 +3689,7 @@ dec_term_atom_common: old_index = unsigned_val(temp); /* Uniq */ - if ((ep = dec_term(edep, hpp, ep, off_heap, &temp)) == NULL) { + if ((ep = dec_term(edep, hpp, ep, off_heap, &temp, NULL)) == NULL) { goto error; } if (!is_small(temp)) { @@ -2787,72 +3779,107 @@ dec_term_atom_common: } default: - error: - /* UNDO: - * Must unlink all off-heap objects that may have been - * linked into the process. - */ - if (hp < *hpp) { /* Sometimes we used hp and sometimes *hpp */ - hp = *hpp; /* the largest must be the freshest */ - } - undo_offheap_in_area(off_heap, hp_saved, hp); - *hpp = hp_saved; - return NULL; + goto error; } + + if (--reds <= 0) { + if (ctx) { + if (next || ctx->state != B2TDecode) { + ctx->u.dc.ep = ep; + ctx->u.dc.next = next; + ctx->u.dc.hp = hp; + ctx->u.dc.maps_head = maps_head; + ctx->reds = 0; + return NULL; + } + } + else { + reds = ERTS_SWORD_MAX; + } + } + } + + /* Iterate through all the maps and check for validity and sort keys + * - done here for when we know it is complete. + */ + + while (maps_head) { + next = (Eterm *)(EXPAND_POINTER(*maps_head)); + *maps_head = MAP_HEADER; + if (!erts_validate_and_sort_map((map_t*)maps_head)) + goto error; + maps_head = next; + } + + if (ctx) { + ctx->state = B2TDone; + ctx->reds = reds; } + *hpp = hp; return ep; + +error: + /* UNDO: + * Must unlink all off-heap objects that may have been + * linked into the process. + */ + if (hp < *hpp) { /* Sometimes we used hp and sometimes *hpp */ + hp = *hpp; /* the largest must be the freshest */ + } + undo_offheap_in_area(off_heap, hp_saved, hp); + *hpp = hp_saved; + if (ctx) { + ctx->state = B2TDecodeFail; + ctx->reds = reds; + } + + return NULL; } /* returns the number of bytes needed to encode an object to a sequence of bytes N.B. That this must agree with to_external2() above!!! (except for cached atoms) */ +static Uint encode_size_struct2(ErtsAtomCacheMap *acmp, Eterm obj, unsigned dflags) { + Uint res; + (void) encode_size_struct_int(NULL, acmp, obj, dflags, NULL, &res); + return res; +} -static Uint -encode_size_struct2(ErtsAtomCacheMap *acmp, Eterm obj, unsigned dflags) +static int +encode_size_struct_int(TTBSizeContext* ctx, ErtsAtomCacheMap *acmp, Eterm obj, + unsigned dflags, Sint *reds, Uint *res) { - DECLARE_WSTACK(s); + DECLARE_ESTACK(s); Uint m, i, arity; Uint result = 0; -#if HALFWORD_HEAP - UWord wobj = 0; -#endif + Sint r = 0; + + if (ctx) { + ESTACK_CHANGE_ALLOCATOR(s, ERTS_ALC_T_SAVED_ESTACK); + r = *reds; + + if (ctx->estack.start) { /* restore saved stack */ + ESTACK_RESTORE(s, &ctx->estack); + result = ctx->result; + obj = ctx->obj; + } + } goto L_jump_start; outer_loop: - while (!WSTACK_ISEMPTY(s)) { -#if HALFWORD_HEAP - obj = (Eterm) (wobj = WSTACK_POP(s)); -#else - obj = WSTACK_POP(s); -#endif + while (!ESTACK_ISEMPTY(s)) { + obj = ESTACK_POP(s); handle_popped_obj: - if (is_CP(obj)) { /* Does not look for CP, looks for "no tag" */ -#if HALFWORD_HEAP - Eterm* ptr = (Eterm *) wobj; -#else - Eterm* ptr = (Eterm *) obj; -#endif - /* - * Pointer into a tuple. - */ - obj = *ptr--; - if (!is_header(obj)) { - WSTACK_PUSH(s, (UWord)ptr); - } else { - /* Reached tuple header */ - ASSERT(header_is_arityval(obj)); - goto outer_loop; - } - } else if (is_list(obj)) { + if (is_list(obj)) { Eterm* cons = list_val(obj); Eterm tl; tl = CDR(cons); obj = CAR(cons); - WSTACK_PUSH(s, tl); + ESTACK_PUSH(s, tl); } else if (is_nil(obj)) { result++; goto outer_loop; @@ -2864,12 +3891,19 @@ encode_size_struct2(ErtsAtomCacheMap *acmp, Eterm obj, unsigned dflags) } L_jump_start: + if (ctx && --r == 0) { + *reds = r; + ctx->obj = obj; + ctx->result = result; + ESTACK_SAVE(s, &ctx->estack); + return -1; + } switch (tag_val_def(obj)) { case NIL_DEF: result++; break; case ATOM_DEF: - if (dflags & DFLAGS_INTERNAL_TAGS) { + if (dflags & DFLAG_INTERNAL_TAGS) { if (atom_val(obj) >= (1<<16)) { result += 1 + 3; } @@ -2878,17 +3912,22 @@ encode_size_struct2(ErtsAtomCacheMap *acmp, Eterm obj, unsigned dflags) } } else { - int alen = atom_tab(atom_val(obj))->len; - if ((MAX_ATOM_LENGTH <= 255 || alen <= 255) - && (dflags & DFLAG_SMALL_ATOM_TAGS)) { - /* Make sure a SMALL_ATOM_EXT fits: SMALL_ATOM_EXT l t1 t2... */ - result += 1 + 1 + alen; + Atom *a = atom_tab(atom_val(obj)); + int alen; + if ((dflags & DFLAG_UTF8_ATOMS) || a->latin1_chars < 0) { + alen = a->len; + result += 1 + 1 + alen; + if (alen > 255) { + result++; /* ATOM_UTF8_EXT (not small) */ + } } else { - /* Make sure an ATOM_EXT fits: ATOM_EXT l1 l0 t1 t2... */ - result += 1 + 2 + alen; + alen = a->latin1_chars; + result += 1 + 1 + alen; + if (alen > 255 || !(dflags & DFLAG_SMALL_ATOM_TAGS)) + result++; /* ATOM_EXT (not small) */ } - insert_acache_map(acmp, obj); + insert_acache_map(acmp, obj, dflags); } break; case SMALL_DEF: @@ -2945,20 +3984,64 @@ encode_size_struct2(ErtsAtomCacheMap *acmp, Eterm obj, unsigned dflags) case TUPLE_DEF: { Eterm* ptr = tuple_val(obj); - + Uint i; arity = arityval(*ptr); if (arity <= 0xff) { result += 1 + 1; } else { result += 1 + 4; } - ptr += arity; -#if HALFWORD_HEAP - obj = (Eterm) (wobj = (UWord) ptr); -#else - obj = (Eterm) ptr; -#endif - goto handle_popped_obj; + for (i = 1; i <= arity; ++i) { + if (is_list(ptr[i])) { + if ((m = is_string(obj)) && (m < MAX_STRING_LEN)) { + result += m + 2 + 1; + } else { + result += 5; + } + } + ESTACK_PUSH(s,ptr[i]); + } + goto outer_loop; + } + break; + case MAP_DEF: + { + map_t *mp = (map_t*)map_val(obj); + Uint size = map_get_size(mp); + Uint i; + Eterm *ptr; + + result += 1 + 4; /* tag + 4 bytes size */ + + /* push values first */ + ptr = map_get_values(mp); + i = size; + while(i--) { + if (is_list(*ptr)) { + if ((m = is_string(*ptr)) && (m < MAX_STRING_LEN)) { + result += m + 2 + 1; + } else { + result += 5; + } + } + ESTACK_PUSH(s,*ptr); + ++ptr; + } + + ptr = map_get_keys(mp); + i = size; + while(i--) { + if (is_list(*ptr)) { + if ((m = is_string(*ptr)) && (m < MAX_STRING_LEN)) { + result += m + 2 + 1; + } else { + result += 5; + } + } + ESTACK_PUSH(s,*ptr); + ++ptr; + } + goto outer_loop; } break; case FLOAT_DEF: @@ -2969,7 +4052,7 @@ encode_size_struct2(ErtsAtomCacheMap *acmp, Eterm obj, unsigned dflags) } break; case BINARY_DEF: - if (dflags & DFLAGS_INTERNAL_TAGS) { + if (dflags & DFLAG_INTERNAL_TAGS) { ProcBin* pb = (ProcBin*) binary_val(obj); Uint sub_extra = 0; Uint tot_bytes = pb->size; @@ -3016,14 +4099,14 @@ encode_size_struct2(ErtsAtomCacheMap *acmp, Eterm obj, unsigned dflags) if (is_not_list(obj)) { /* Push any non-list terms on the stack */ - WSTACK_PUSH(s, obj); + ESTACK_PUSH(s, obj); } else { /* Lists must be handled specially. */ if ((m = is_string(obj)) && (m < MAX_STRING_LEN)) { result += m + 2 + 1; } else { result += 5; - WSTACK_PUSH(s, obj); + ESTACK_PUSH(s, obj); } } } @@ -3054,23 +4137,47 @@ encode_size_struct2(ErtsAtomCacheMap *acmp, Eterm obj, unsigned dflags) } } - DESTROY_WSTACK(s); - return result; + DESTROY_ESTACK(s); + if (ctx) { + ASSERT(ctx->estack.start == NULL); + *reds = r; + } + *res = result; + return 0; } static Sint -decoded_size(byte *ep, byte* endp, int internal_tags) +decoded_size(byte *ep, byte* endp, int internal_tags, B2TContext* ctx) { - int heap_size = 0; + int heap_size; int terms; - int atom_extra_skip = 0; + int atom_extra_skip; Uint n; + SWord reds; + + if (ctx) { + reds = ctx->reds; + if (ctx->u.sc.ep) { + heap_size = ctx->u.sc.heap_size; + terms = ctx->u.sc.terms; + ep = ctx->u.sc.ep; + atom_extra_skip = ctx->u.sc.atom_extra_skip; + goto init_done; + } + } + else + reds = 0; /* not used but compiler warns anyway */ + + heap_size = 0; + terms = 1; + atom_extra_skip = 0; +init_done: #define SKIP(sz) \ do { \ if ((sz) <= endp-ep) { \ ep += (sz); \ - } else { return -1; }; \ + } else { goto error; }; \ } while (0) #define SKIP2(sz1, sz2) \ @@ -3078,31 +4185,32 @@ decoded_size(byte *ep, byte* endp, int internal_tags) Uint sz = (sz1) + (sz2); \ if (sz1 < sz && (sz) <= endp-ep) { \ ep += (sz); \ - } else { return -1; } \ + } else { goto error; } \ } while (0) #define CHKSIZE(sz) \ do { \ - if ((sz) > endp-ep) { return -1; } \ + if ((sz) > endp-ep) { goto error; } \ } while (0) #define ADDTERMS(n) \ do { \ int before = terms; \ terms += (n); \ - if (terms < before) return -1; \ + if (terms < before) goto error; \ } while (0) - - for (terms=1; terms > 0; terms--) { - int tag; - + ASSERT(terms > 0); + do { + int tag; CHKSIZE(1); tag = ep++[0]; switch (tag) { case INTEGER_EXT: SKIP(4); +#if !defined(ARCH_64) || HALFWORD_HEAP heap_size += BIG_UINT_HEAP_SIZE; +#endif break; case SMALL_INTEGER_EXT: SKIP(1); @@ -3117,7 +4225,7 @@ decoded_size(byte *ep, byte* endp, int internal_tags) CHKSIZE(4); n = get_int32(ep); if (n > BIG_ARITY_MAX*sizeof(ErtsDigit)) { - return -1; + goto error; } SKIP2(n,4+1); /* skip, size,sign,digits */ heap_size += 1+1+(n+sizeof(Eterm)-1)/sizeof(Eterm); /* XXX: 1 too much? */ @@ -3125,21 +4233,41 @@ decoded_size(byte *ep, byte* endp, int internal_tags) case ATOM_EXT: CHKSIZE(2); n = get_int16(ep); - if (n > MAX_ATOM_LENGTH) { - return -1; + if (n > MAX_ATOM_CHARACTERS) { + goto error; } SKIP(n+2+atom_extra_skip); atom_extra_skip = 0; break; + case ATOM_UTF8_EXT: + CHKSIZE(2); + n = get_int16(ep); + ep += 2; + if (n > MAX_ATOM_SZ_LIMIT) { + goto error; + } + SKIP(n+atom_extra_skip); + atom_extra_skip = 0; + break; case SMALL_ATOM_EXT: CHKSIZE(1); n = get_int8(ep); - if (n > MAX_ATOM_LENGTH) { - return -1; + if (n > MAX_ATOM_CHARACTERS) { + goto error; } SKIP(n+1+atom_extra_skip); atom_extra_skip = 0; break; + case SMALL_ATOM_UTF8_EXT: + CHKSIZE(1); + n = get_int8(ep); + ep++; + if (n > MAX_ATOM_SZ_LIMIT) { + goto error; + } + SKIP(n+atom_extra_skip); + atom_extra_skip = 0; + break; case ATOM_CACHE_REF: SKIP(1+atom_extra_skip); atom_extra_skip = 0; @@ -3164,7 +4292,7 @@ decoded_size(byte *ep, byte* endp, int internal_tags) id_words = get_int16(ep); if (id_words > ERTS_MAX_REF_NUMBERS) - return -1; + goto error; ep += 2; atom_extra_skip = 1 + 4*id_words; @@ -3206,6 +4334,13 @@ decoded_size(byte *ep, byte* endp, int internal_tags) ADDTERMS(n); heap_size += n + 1; break; + case MAP_EXT: + CHKSIZE(4); + n = get_int32(ep); + ep += 4; + ADDTERMS(2*n); + heap_size += 3 + n + 1 + n; + break; case STRING_EXT: CHKSIZE(2); n = get_int16(ep); @@ -3266,7 +4401,7 @@ decoded_size(byte *ep, byte* endp, int internal_tags) num_free = get_int32(ep); ep += 4; if (num_free > MAX_ARG) { - return -1; + goto error; } terms += 4 + num_free; heap_size += ERL_FUN_SIZE + num_free; @@ -3283,24 +4418,47 @@ decoded_size(byte *ep, byte* endp, int internal_tags) case BINARY_INTERNAL_REF: if (!internal_tags) { - return -1; + goto error; } SKIP(sizeof(ProcBin)); heap_size += PROC_BIN_SIZE; break; case BIT_BINARY_INTERNAL_REF: if (!internal_tags) { - return -1; + goto error; } SKIP(2+sizeof(ProcBin)); heap_size += PROC_BIN_SIZE + ERL_SUB_BIN_SIZE; break; default: - return -1; + goto error; } - } + terms--; + + if (ctx && --reds <= 0 && terms > 0) { + ctx->u.sc.heap_size = heap_size; + ctx->u.sc.terms = terms; + ctx->u.sc.ep = ep; + ctx->u.sc.atom_extra_skip = atom_extra_skip; + ctx->reds = 0; + return 0; + } + }while (terms > 0); + /* 'terms' may be non-zero if it has wrapped around */ - return terms==0 ? heap_size : -1; + if (terms == 0) { + if (ctx) { + ctx->state = B2TDecodeInit; + ctx->reds = reds; + } + return heap_size; + } + +error: + if (ctx) { + ctx->state = B2TBadArg; + } + return -1; #undef SKIP #undef SKIP2 #undef CHKSIZE diff --git a/erts/emulator/beam/external.h b/erts/emulator/beam/external.h index eddd4571dd..bf00958eb1 100644 --- a/erts/emulator/beam/external.h +++ b/erts/emulator/beam/external.h @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 1996-2011. All Rights Reserved. + * Copyright Ericsson AB 1996-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -50,7 +50,10 @@ #define LARGE_BIG_EXT 'o' #define NEW_FUN_EXT 'p' #define EXPORT_EXT 'q' +#define MAP_EXT 't' #define FUN_EXT 'u' +#define ATOM_UTF8_EXT 'v' +#define SMALL_ATOM_UTF8_EXT 'w' #define DIST_HEADER 'D' #define ATOM_CACHE_REF 'R' @@ -90,6 +93,7 @@ typedef struct cache { typedef struct { int hdr_sz; int sz; + int long_atoms; int cix[ERTS_ATOM_CACHE_SIZE]; struct { Eterm atom; @@ -135,14 +139,15 @@ typedef struct { #define ERTS_DIST_EXT_SIZE(EDEP) \ (sizeof(ErtsDistExternal) \ - (((EDEP)->flags & ERTS_DIST_EXT_ATOM_TRANS_TAB) \ - ? (ASSERT_EXPR(0 <= (EDEP)->attab.size \ - && (EDEP)->attab.size <= ERTS_ATOM_CACHE_SIZE), \ + ? (ASSERT(0 <= (EDEP)->attab.size \ + && (EDEP)->attab.size <= ERTS_ATOM_CACHE_SIZE), \ sizeof(Eterm)*(ERTS_ATOM_CACHE_SIZE - (EDEP)->attab.size)) \ : sizeof(ErtsAtomTranslationTable))) typedef struct { byte *extp; int exttmp; + Uint extsize; } ErtsBinary2TermState; /* -------------------------------------------------------------------------- */ @@ -150,12 +155,12 @@ typedef struct { void erts_init_atom_cache_map(ErtsAtomCacheMap *); void erts_reset_atom_cache_map(ErtsAtomCacheMap *); void erts_destroy_atom_cache_map(ErtsAtomCacheMap *); -void erts_finalize_atom_cache_map(ErtsAtomCacheMap *); +void erts_finalize_atom_cache_map(ErtsAtomCacheMap *, Uint32); Uint erts_encode_ext_dist_header_size(ErtsAtomCacheMap *); Uint erts_encode_ext_dist_header_size(ErtsAtomCacheMap *); byte *erts_encode_ext_dist_header_setup(byte *, ErtsAtomCacheMap *); -byte *erts_encode_ext_dist_header_finalize(byte *, ErtsAtomCache *); +byte *erts_encode_ext_dist_header_finalize(byte *, ErtsAtomCache *, Uint32); Uint erts_encode_dist_ext_size(Eterm, Uint32, ErtsAtomCacheMap *); void erts_encode_dist_ext(Eterm, byte **, Uint32, ErtsAtomCacheMap *); diff --git a/erts/emulator/beam/global.h b/erts/emulator/beam/global.h index 2c20e3da3b..891046a8b5 100755..100644 --- a/erts/emulator/beam/global.h +++ b/erts/emulator/beam/global.h @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 1996-2012. All Rights Reserved. + * Copyright Ericsson AB 1996-2014. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -28,6 +28,7 @@ #include "hash.h" #include "index.h" #include "atom.h" +#include "code_ix.h" #include "export.h" #include "module.h" #include "register.h" @@ -38,38 +39,8 @@ #include "erl_sys_driver.h" #include "erl_debug.h" #include "error.h" - -typedef struct port Port; -#include "erl_port_task.h" - -typedef struct erts_driver_t_ erts_driver_t; - -#define SMALL_IO_QUEUE 5 /* Number of fixed elements */ - -typedef struct { - ErlDrvSizeT size; /* total size in bytes */ - - SysIOVec* v_start; - SysIOVec* v_end; - SysIOVec* v_head; - SysIOVec* v_tail; - SysIOVec v_small[SMALL_IO_QUEUE]; - - ErlDrvBinary** b_start; - ErlDrvBinary** b_end; - ErlDrvBinary** b_head; - ErlDrvBinary** b_tail; - ErlDrvBinary* b_small[SMALL_IO_QUEUE]; -} ErlIOQueue; - -typedef struct line_buf { /* Buffer used in line oriented I/O */ - ErlDrvSizeT bufsiz; /* Size of character buffer */ - ErlDrvSizeT ovlen; /* Length of overflow data */ - ErlDrvSizeT ovsiz; /* Actual size of overflow buffer */ - char data[1]; /* Starting point of buffer data, - data[0] is a flag indicating an unprocess CR, - The rest is the overflow buffer. */ -} LineBuf; +#include "erl_utils.h" +#include "erl_port.h" struct enif_environment_t /* ErlNifEnv */ { @@ -89,158 +60,6 @@ extern void erts_print_nif_taints(int to, void* to_arg); void erts_unload_nif(struct erl_module_nif* nif); extern void erl_nif_init(void); -/* - * Port Specific Data. - * - * Only use PrtSD for very rarely used data. - */ - -#define ERTS_PRTSD_SCHED_ID 0 - -#define ERTS_PRTSD_SIZE 1 - -typedef struct { - void *data[ERTS_PRTSD_SIZE]; -} ErtsPrtSD; - -#ifdef ERTS_SMP -typedef struct ErtsXPortsList_ ErtsXPortsList; -#endif - -/* - * Port locking: - * - * Locking is done either driver specific or port specific. When - * driver specific locking is used, all instances of the driver, - * i.e. ports running the driver, share the same lock. When port - * specific locking is used each instance have its own lock. - * - * Most fields in the Port structure are protected by the lock - * referred to by the lock field. I'v called it the port lock. - * This lock is shared between all ports running the same driver - * when driver specific locking is used. - * - * The 'sched' field is protected by the port tasks lock - * (see erl_port_tasks.c) - * - * The 'status' field is protected by a combination of the port lock, - * the port tasks lock, and the state_lck. It may be read if - * the state_lck, or the port lock is held. It may only be - * modified if both the port lock and the state_lck is held - * (with one exception; see below). When changeing status from alive - * to dead or vice versa, also the port task lock has to be held. - * This in order to guarantee that tasks are scheduled only for - * ports that are alive. - * - * The status field may be modified with only the state_lck - * held when status is changed from dead to alive. This since no - * threads can have any references to the port other than via the - * port table. - * - * /rickard - */ - -struct port { - ErtsPortTaskSched sched; - ErtsPortTaskHandle timeout_task; -#ifdef ERTS_SMP - erts_smp_atomic_t refc; - erts_smp_mtx_t *lock; - ErtsXPortsList *xports; - erts_smp_atomic_t run_queue; - erts_smp_spinlock_t state_lck; /* protects: id, status, snapshot */ -#endif - Eterm id; /* The Port id of this port */ - Eterm connected; /* A connected process */ - Eterm caller; /* Current caller. */ - Eterm data; /* Data associated with port. */ - ErlHeapFragment* bp; /* Heap fragment holding data (NULL if imm data). */ - ErtsLink *nlinks; - ErtsMonitor *monitors; /* Only MON_ORIGIN monitors of pid's */ - Uint bytes_in; /* Number of bytes read */ - Uint bytes_out; /* Number of bytes written */ -#ifdef ERTS_SMP - ErtsSmpPTimer *ptimer; -#else - ErlTimer tm; /* Timer entry */ -#endif - - Eterm tracer_proc; /* If the port is traced, this is the tracer */ - Uint trace_flags; /* Trace flags */ - - ErlIOQueue ioq; /* driver accessible i/o queue */ - DistEntry *dist_entry; /* Dist entry used in DISTRIBUTION */ - char *name; /* String used in the open */ - erts_driver_t* drv_ptr; - UWord drv_data; - SWord os_pid; /* Child process ID */ - ErtsProcList *suspended; /* List of suspended processes. */ - LineBuf *linebuf; /* Buffer to hold data not ready for - process to get (line oriented I/O)*/ - Uint32 status; /* Status and type flags */ - int control_flags; /* Flags for port_control() */ - erts_aint32_t snapshot; /* Next snapshot that port should be part of */ - struct reg_proc *reg; - ErlDrvPDL port_data_lock; - - ErtsPrtSD *psd; /* Port specific data */ -}; - - -ERTS_GLB_INLINE ErtsRunQueue *erts_port_runq(Port *prt); - -#if ERTS_GLB_INLINE_INCL_FUNC_DEF - -ERTS_GLB_INLINE ErtsRunQueue * -erts_port_runq(Port *prt) -{ -#ifdef ERTS_SMP - ErtsRunQueue *rq1, *rq2; - rq1 = (ErtsRunQueue *) erts_smp_atomic_read_nob(&prt->run_queue); - while (1) { - erts_smp_runq_lock(rq1); - rq2 = (ErtsRunQueue *) erts_smp_atomic_read_nob(&prt->run_queue); - if (rq1 == rq2) - return rq1; - erts_smp_runq_unlock(rq1); - rq1 = rq2; - } -#else - return ERTS_RUNQ_IX(0); -#endif -} - -#endif - - -ERTS_GLB_INLINE void *erts_prtsd_get(Port *p, int ix); -ERTS_GLB_INLINE void *erts_prtsd_set(Port *p, int ix, void *new); - -#if ERTS_GLB_INLINE_INCL_FUNC_DEF - -ERTS_GLB_INLINE void * -erts_prtsd_get(Port *prt, int ix) -{ - return prt->psd ? prt->psd->data[ix] : NULL; -} - -ERTS_GLB_INLINE void * -erts_prtsd_set(Port *prt, int ix, void *data) -{ - if (prt->psd) { - void *old = prt->psd->data[ix]; - prt->psd->data[ix] = data; - return old; - } - else { - prt->psd = erts_alloc(ERTS_ALC_T_PRTSD, sizeof(ErtsPrtSD)); - prt->psd->data[ix] = data; - return NULL; - } -} - -#endif - /* Driver handle (wrapper for old plain handle) */ #define ERL_DE_OK 0 #define ERL_DE_UNLOAD 1 @@ -292,7 +111,7 @@ typedef struct { or that wait for it to change state */ erts_refc_t refc; /* Number of ports/processes having references to the driver */ - Uint port_count; /* Number of ports using the driver */ + erts_smp_atomic32_t port_count; /* Number of ports using the driver */ Uint flags; /* ERL_DE_FL_KILL_PORTS */ int status; /* ERL_DE_xxx */ char *full_path; /* Full path of the driver */ @@ -344,7 +163,7 @@ struct erts_driver_t_ { }; extern erts_driver_t *driver_list; -extern erts_smp_mtx_t erts_driver_list_lock; +extern erts_smp_rwmtx_t erts_driver_list_lock; extern void erts_ddll_init(void); extern void erts_ddll_lock_driver(DE_Handle *dh, char *name); @@ -367,11 +186,6 @@ extern void erts_ddll_remove_monitor(Process *p, extern Eterm erts_ddll_monitor_driver(Process *p, Eterm description, ErtsProcLocks plocks); -/* - * Max no. of drivers (linked in and dynamically loaded). Each table - * entry uses 4 bytes. - */ -#define DRIVER_TAB_SIZE 32 /* ** Just like the driver binary but with initial flags @@ -524,40 +338,9 @@ union erl_off_heap_ptr { void* voidp; }; -/* arrays that get malloced at startup */ -extern Port* erts_port; - -extern Uint erts_max_ports; -extern Uint erts_port_tab_index_mask; -extern erts_smp_atomic32_t erts_ports_snapshot; -extern erts_smp_atomic_t erts_dead_ports_ptr; - -ERTS_GLB_INLINE void erts_may_save_closed_port(Port *prt); - -#if ERTS_GLB_INLINE_INCL_FUNC_DEF - -ERTS_GLB_INLINE void erts_may_save_closed_port(Port *prt) -{ - ERTS_SMP_LC_ASSERT(erts_smp_lc_spinlock_is_locked(&prt->state_lck)); - if (prt->snapshot != erts_smp_atomic32_read_acqb(&erts_ports_snapshot)) { - /* Dead ports are added from the end of the snapshot buffer */ - Eterm* tombstone; - tombstone = (Eterm*) erts_smp_atomic_add_read_nob(&erts_dead_ports_ptr, - -(erts_aint_t)sizeof(Eterm)); - ASSERT(tombstone+1 != NULL); - ASSERT(prt->snapshot == erts_smp_atomic32_read_nob(&erts_ports_snapshot) - 1); - *tombstone = prt->id; - } - /*else no ongoing snapshot or port was already included or created after snapshot */ -} - -#endif - /* controls warning mapping in error_logger */ extern Eterm node_cookie; -extern erts_smp_atomic_t erts_bytes_out; /* no bytes written out */ -extern erts_smp_atomic_t erts_bytes_in; /* no bytes sent into the system */ extern Uint display_items; /* no of items to display in traces etc */ extern int erts_backtrace_depth; @@ -587,161 +370,237 @@ extern int stackdump_on_exit; * DESTROY_ESTACK(Stack) */ +typedef struct { + Eterm* start; + Eterm* sp; + Eterm* end; + ErtsAlcType_t alloc_type; +}ErtsEStack; -void erl_grow_stack(Eterm** start, Eterm** sp, Eterm** end); -#define ESTK_CONCAT(a,b) a##b -#define ESTK_SUBSCRIPT(s,i) *((Eterm *)((byte *)ESTK_CONCAT(s,_start) + (i))) #define DEF_ESTACK_SIZE (16) -#define DECLARE_ESTACK(s) \ - Eterm ESTK_CONCAT(s,_default_stack)[DEF_ESTACK_SIZE]; \ - Eterm* ESTK_CONCAT(s,_start) = ESTK_CONCAT(s,_default_stack); \ - Eterm* ESTK_CONCAT(s,_sp) = ESTK_CONCAT(s,_start); \ - Eterm* ESTK_CONCAT(s,_end) = ESTK_CONCAT(s,_start) + DEF_ESTACK_SIZE +void erl_grow_estack(ErtsEStack*, Eterm* def_stack); +#define ESTK_CONCAT(a,b) a##b +#define ESTK_DEF_STACK(s) ESTK_CONCAT(s,_default_estack) + +#define DECLARE_ESTACK(s) \ + Eterm ESTK_DEF_STACK(s)[DEF_ESTACK_SIZE]; \ + ErtsEStack s = { \ + ESTK_DEF_STACK(s), /* start */ \ + ESTK_DEF_STACK(s), /* sp */ \ + ESTK_DEF_STACK(s) + DEF_ESTACK_SIZE, /* end */ \ + ERTS_ALC_T_ESTACK /* alloc_type */ \ + } -#define DESTROY_ESTACK(s) \ +#define ESTACK_CHANGE_ALLOCATOR(s,t) \ do { \ - if (ESTK_CONCAT(s,_start) != ESTK_CONCAT(s,_default_stack)) { \ - erts_free(ERTS_ALC_T_ESTACK, ESTK_CONCAT(s,_start)); \ + if (s.start != ESTK_DEF_STACK(s)) { \ + erl_exit(1, "Internal error - trying to change allocator " \ + "type of active estack\n"); \ } \ + s.alloc_type = (t); \ + } while (0) + +#define DESTROY_ESTACK(s) \ +do { \ + if (s.start != ESTK_DEF_STACK(s)) { \ + erts_free(s.alloc_type, s.start); \ + } \ } while(0) -#define ESTACK_PUSH(s, x) \ -do { \ - if (ESTK_CONCAT(s,_sp) == ESTK_CONCAT(s,_end)) { \ - erl_grow_stack(&ESTK_CONCAT(s,_start), &ESTK_CONCAT(s,_sp), \ - &ESTK_CONCAT(s,_end)); \ - } \ - *ESTK_CONCAT(s,_sp)++ = (x); \ + +/* + * Do not free the stack after this, it may have pointers into what + * was saved in 'dst'. + */ +#define ESTACK_SAVE(s,dst)\ +do {\ + if (s.start == ESTK_DEF_STACK(s)) {\ + UWord _wsz = ESTACK_COUNT(s);\ + (dst)->start = erts_alloc(s.alloc_type,\ + DEF_ESTACK_SIZE * sizeof(Eterm));\ + memcpy((dst)->start, s.start,_wsz*sizeof(Eterm));\ + (dst)->sp = (dst)->start + _wsz;\ + (dst)->end = (dst)->start + DEF_ESTACK_SIZE;\ + (dst)->alloc_type = s.alloc_type;\ + } else\ + *(dst) = s;\ + } while (0) + +#define DESTROY_SAVED_ESTACK(estack)\ +do {\ + if ((estack)->start) {\ + erts_free((estack)->alloc_type, (estack)->start);\ + (estack)->start = NULL;\ + }\ } while(0) -#define ESTACK_PUSH2(s, x, y) \ -do { \ - if (ESTK_CONCAT(s,_sp) > ESTK_CONCAT(s,_end) - 2) { \ - erl_grow_stack(&ESTK_CONCAT(s,_start), &ESTK_CONCAT(s,_sp), \ - &ESTK_CONCAT(s,_end)); \ - } \ - *ESTK_CONCAT(s,_sp)++ = (x); \ - *ESTK_CONCAT(s,_sp)++ = (y); \ +#define CLEAR_SAVED_ESTACK(estack) ((void) ((estack)->start = NULL)) + +/* + * Use on empty stack, only the allocator can be changed before this. + * The src stack is reset to NULL. + */ +#define ESTACK_RESTORE(s, src) \ +do { \ + ASSERT(s.start == ESTK_DEF_STACK(s)); \ + s = *(src); /* struct copy */ \ + (src)->start = NULL; \ + ASSERT(s.sp >= s.start); \ + ASSERT(s.sp <= s.end); \ +} while (0) + +#define ESTACK_IS_STATIC(s) (s.start == ESTK_DEF_STACK(s))) + +#define ESTACK_PUSH(s, x) \ +do { \ + if (s.sp == s.end) { \ + erl_grow_estack(&s, ESTK_DEF_STACK(s)); \ + } \ + *s.sp++ = (x); \ } while(0) -#define ESTACK_PUSH3(s, x, y, z) \ -do { \ - if (ESTK_CONCAT(s,_sp) > ESTK_CONCAT(s,_end) - 3) { \ - erl_grow_stack(&ESTK_CONCAT(s,_start), &ESTK_CONCAT(s,_sp), \ - &ESTK_CONCAT(s,_end)); \ - } \ - *ESTK_CONCAT(s,_sp)++ = (x); \ - *ESTK_CONCAT(s,_sp)++ = (y); \ - *ESTK_CONCAT(s,_sp)++ = (z); \ +#define ESTACK_PUSH2(s, x, y) \ +do { \ + if (s.sp > s.end - 2) { \ + erl_grow_estack(&s, ESTK_DEF_STACK(s)); \ + } \ + *s.sp++ = (x); \ + *s.sp++ = (y); \ +} while(0) + +#define ESTACK_PUSH3(s, x, y, z) \ +do { \ + if (s.sp > s.end - 3) { \ + erl_grow_estack(&s, ESTK_DEF_STACK(s)); \ + } \ + *s.sp++ = (x); \ + *s.sp++ = (y); \ + *s.sp++ = (z); \ } while(0) -#define ESTACK_COUNT(s) (ESTK_CONCAT(s,_sp) - ESTK_CONCAT(s,_start)) +#define ESTACK_COUNT(s) (s.sp - s.start) +#define ESTACK_ISEMPTY(s) (s.sp == s.start) +#define ESTACK_POP(s) (*(--s.sp)) -#define ESTACK_ISEMPTY(s) (ESTK_CONCAT(s,_sp) == ESTK_CONCAT(s,_start)) -#define ESTACK_POP(s) (*(--ESTK_CONCAT(s,_sp))) +/* + * WSTACK: same as ESTACK but with UWord instead of Eterm + */ + +typedef struct { + UWord* wstart; + UWord* wsp; + UWord* wend; + ErtsAlcType_t alloc_type; +}ErtsWStack; -void erl_grow_wstack(UWord** start, UWord** sp, UWord** end); -#define WSTK_CONCAT(a,b) a##b -#define WSTK_SUBSCRIPT(s,i) *((UWord *)((byte *)WSTK_CONCAT(s,_start) + (i))) #define DEF_WSTACK_SIZE (16) -#define DECLARE_WSTACK(s) \ - UWord WSTK_CONCAT(s,_default_stack)[DEF_WSTACK_SIZE]; \ - UWord* WSTK_CONCAT(s,_start) = WSTK_CONCAT(s,_default_stack); \ - UWord* WSTK_CONCAT(s,_sp) = WSTK_CONCAT(s,_start); \ - UWord* WSTK_CONCAT(s,_end) = WSTK_CONCAT(s,_start) + DEF_WSTACK_SIZE +void erl_grow_wstack(ErtsWStack*, UWord* def_stack); +#define WSTK_CONCAT(a,b) a##b +#define WSTK_DEF_STACK(s) WSTK_CONCAT(s,_default_wstack) + +#define DECLARE_WSTACK(s) \ + UWord WSTK_DEF_STACK(s)[DEF_WSTACK_SIZE]; \ + ErtsWStack s = { \ + WSTK_DEF_STACK(s), /* wstart */ \ + WSTK_DEF_STACK(s), /* wsp */ \ + WSTK_DEF_STACK(s) + DEF_WSTACK_SIZE, /* wend */ \ + ERTS_ALC_T_ESTACK /* alloc_type */ \ + } -#define DESTROY_WSTACK(s) \ +#define WSTACK_CHANGE_ALLOCATOR(s,t) \ do { \ - if (WSTK_CONCAT(s,_start) != WSTK_CONCAT(s,_default_stack)) { \ - erts_free(ERTS_ALC_T_ESTACK, WSTK_CONCAT(s,_start)); \ + if (s.wstart != WSTK_DEF_STACK(s)) { \ + erl_exit(1, "Internal error - trying to change allocator " \ + "type of active wstack\n"); \ } \ + s.alloc_type = (t); \ + } while (0) + +#define DESTROY_WSTACK(s) \ +do { \ + if (s.wstart != WSTK_DEF_STACK(s)) { \ + erts_free(s.alloc_type, s.wstart); \ + } \ } while(0) -#define WSTACK_PUSH(s, x) \ -do { \ - if (WSTK_CONCAT(s,_sp) == WSTK_CONCAT(s,_end)) { \ - erl_grow_wstack(&WSTK_CONCAT(s,_start), &WSTK_CONCAT(s,_sp), \ - &WSTK_CONCAT(s,_end)); \ - } \ - *WSTK_CONCAT(s,_sp)++ = (x); \ + +/* + * Do not free the stack after this, it may have pointers into what + * was saved in 'dst'. + */ +#define WSTACK_SAVE(s,dst)\ +do {\ + if (s.wstart == WSTK_DEF_STACK(s)) {\ + UWord _wsz = WSTACK_COUNT(s);\ + (dst)->wstart = erts_alloc(s.alloc_type,\ + DEF_WSTACK_SIZE * sizeof(UWord));\ + memcpy((dst)->wstart, s.wstart,_wsz*sizeof(UWord));\ + (dst)->wsp = (dst)->wstart + _wsz;\ + (dst)->wend = (dst)->wstart + DEF_WSTACK_SIZE;\ + (dst)->alloc_type = s.alloc_type;\ + } else\ + *(dst) = s;\ + } while (0) + +#define DESTROY_SAVED_WSTACK(wstack)\ +do {\ + if ((wstack)->wstart) {\ + erts_free((wstack)->alloc_type, (wstack)->wstart);\ + (wstack)->wstart = NULL;\ + }\ } while(0) -#define WSTACK_PUSH2(s, x, y) \ -do { \ - if (WSTK_CONCAT(s,_sp) > WSTK_CONCAT(s,_end) - 2) { \ - erl_grow_wstack(&WSTK_CONCAT(s,_start), &WSTK_CONCAT(s,_sp), \ - &WSTK_CONCAT(s,_end)); \ - } \ - *WSTK_CONCAT(s,_sp)++ = (x); \ - *WSTK_CONCAT(s,_sp)++ = (y); \ +#define CLEAR_SAVED_WSTACK(wstack) ((void) ((wstack)->wstart = NULL)) + +/* + * Use on empty stack, only the allocator can be changed before this. + * The src stack is reset to NULL. + */ +#define WSTACK_RESTORE(s, src) \ +do { \ + ASSERT(s.wstart == WSTK_DEF_STACK(s)); \ + s = *(src); /* struct copy */ \ + (src)->wstart = NULL; \ + ASSERT(s.wsp >= s.wstart); \ + ASSERT(s.wsp <= s.wend); \ +} while (0) + +#define WSTACK_IS_STATIC(s) (s.wstart == WSTK_DEF_STACK(s))) + +#define WSTACK_PUSH(s, x) \ +do { \ + if (s.wsp == s.wend) { \ + erl_grow_wstack(&s, WSTK_DEF_STACK(s)); \ + } \ + *s.wsp++ = (x); \ } while(0) -#define WSTACK_PUSH3(s, x, y, z) \ -do { \ - if (WSTK_CONCAT(s,_sp) > WSTK_CONCAT(s,_end) - 3) { \ - erl_grow_wstack(&WSTK_CONCAT(s,_start), &WSTK_CONCAT(s,_sp), \ - &WSTK_CONCAT(s,_end)); \ - } \ - *WSTK_CONCAT(s,_sp)++ = (x); \ - *WSTK_CONCAT(s,_sp)++ = (y); \ - *WSTK_CONCAT(s,_sp)++ = (z); \ +#define WSTACK_PUSH2(s, x, y) \ +do { \ + if (s.wsp > s.wend - 2) { \ + erl_grow_wstack(&s, WSTK_DEF_STACK(s)); \ + } \ + *s.wsp++ = (x); \ + *s.wsp++ = (y); \ } while(0) -#define WSTACK_COUNT(s) (WSTK_CONCAT(s,_sp) - WSTK_CONCAT(s,_start)) - -#define WSTACK_ISEMPTY(s) (WSTK_CONCAT(s,_sp) == WSTK_CONCAT(s,_start)) -#define WSTACK_POP(s) (*(--WSTK_CONCAT(s,_sp))) - - -/* port status flags */ - -#define ERTS_PORT_SFLG_CONNECTED ((Uint32) (1 << 0)) -/* Port have begun exiting */ -#define ERTS_PORT_SFLG_EXITING ((Uint32) (1 << 1)) -/* Distribution port */ -#define ERTS_PORT_SFLG_DISTRIBUTION ((Uint32) (1 << 2)) -#define ERTS_PORT_SFLG_BINARY_IO ((Uint32) (1 << 3)) -#define ERTS_PORT_SFLG_SOFT_EOF ((Uint32) (1 << 4)) -/* Flow control */ -#define ERTS_PORT_SFLG_PORT_BUSY ((Uint32) (1 << 5)) -/* Port is closing (no i/o accepted) */ -#define ERTS_PORT_SFLG_CLOSING ((Uint32) (1 << 6)) -/* Send a closed message when terminating */ -#define ERTS_PORT_SFLG_SEND_CLOSED ((Uint32) (1 << 7)) -/* Line orinted io on port */ -#define ERTS_PORT_SFLG_LINEBUF_IO ((Uint32) (1 << 8)) -/* Immortal port (only certain system ports) */ -#define ERTS_PORT_SFLG_IMMORTAL ((Uint32) (1 << 9)) -#define ERTS_PORT_SFLG_FREE ((Uint32) (1 << 10)) -#define ERTS_PORT_SFLG_FREE_SCHEDULED ((Uint32) (1 << 11)) -#define ERTS_PORT_SFLG_INITIALIZING ((Uint32) (1 << 12)) -/* Port uses port specific locking (opposed to driver specific locking) */ -#define ERTS_PORT_SFLG_PORT_SPECIFIC_LOCK ((Uint32) (1 << 13)) -#define ERTS_PORT_SFLG_INVALID ((Uint32) (1 << 14)) -/* Last port to terminate halts the emulator */ -#define ERTS_PORT_SFLG_HALT ((Uint32) (1 << 15)) -#ifdef DEBUG -/* Only debug: make sure all flags aren't cleared unintentionally */ -#define ERTS_PORT_SFLG_PORT_DEBUG ((Uint32) (1 << 31)) -#endif +#define WSTACK_PUSH3(s, x, y, z) \ +do { \ + if (s.wsp > s.wend - 3) { \ + erl_grow_wstack(&s, WSTK_DEF_STACK(s)); \ + } \ + *s.wsp++ = (x); \ + *s.wsp++ = (y); \ + *s.wsp++ = (z); \ +} while(0) + +#define WSTACK_COUNT(s) (s.wsp - s.wstart) +#define WSTACK_ISEMPTY(s) (s.wsp == s.wstart) +#define WSTACK_POP(s) (*(--s.wsp)) -/* Combinations of port status flags */ -#define ERTS_PORT_SFLGS_DEAD \ - (ERTS_PORT_SFLG_FREE \ - | ERTS_PORT_SFLG_FREE_SCHEDULED \ - | ERTS_PORT_SFLG_INITIALIZING) -#define ERTS_PORT_SFLGS_INVALID_DRIVER_LOOKUP \ - (ERTS_PORT_SFLGS_DEAD | ERTS_PORT_SFLG_INVALID) -#define ERTS_PORT_SFLGS_INVALID_LOOKUP \ - (ERTS_PORT_SFLGS_INVALID_DRIVER_LOOKUP \ - | ERTS_PORT_SFLG_CLOSING) -#define ERTS_PORT_SFLGS_INVALID_TRACER_LOOKUP \ - (ERTS_PORT_SFLGS_INVALID_LOOKUP \ - | ERTS_PORT_SFLG_PORT_BUSY \ - | ERTS_PORT_SFLG_DISTRIBUTION) /* binary.c */ @@ -753,17 +612,43 @@ Eterm erts_realloc_binary(Eterm bin, size_t size); /* erl_bif_info.c */ +Eterm +erts_bld_port_info(Eterm **hpp, + ErlOffHeap *ohp, + Uint *szp, + Port *prt, + Eterm item); + void erts_bif_info_init(void); /* bif.c */ Eterm erts_make_ref(Process *); Eterm erts_make_ref_in_buffer(Eterm buffer[REF_THING_SIZE]); +void erts_make_ref_in_array(Uint32 ref[ERTS_MAX_REF_NUMBERS]); + +ERTS_GLB_INLINE Eterm +erts_proc_store_ref(Process *c_p, Uint32 ref[ERTS_MAX_REF_NUMBERS]); + +#if ERTS_GLB_INLINE_INCL_FUNC_DEF + +ERTS_GLB_INLINE Eterm +erts_proc_store_ref(Process *c_p, Uint32 ref[ERTS_MAX_REF_NUMBERS]) +{ + Eterm *hp = HAlloc(c_p, REF_THING_SIZE); + write_ref_thing(hp, ref[0], ref[1], ref[2]); + return make_internal_ref(hp); +} + +#endif + void erts_queue_monitor_message(Process *, ErtsProcLocks*, Eterm, Eterm, Eterm, Eterm); +void erts_init_trap_export(Export* ep, Eterm m, Eterm f, Uint a, + Eterm (*bif)(Process*,Eterm*)); void erts_init_bif(void); Eterm erl_send(Process *p, Eterm to, Eterm msg); @@ -771,12 +656,9 @@ Eterm erl_send(Process *p, Eterm to, Eterm msg); Eterm erl_is_function(Process* p, Eterm arg1, Eterm arg2); -/* erl_bif_port.c */ +/* beam_bif_load.c */ +Eterm erts_check_process_code(Process *c_p, Eterm module, int allow_gc, int *redsp); -/* erl_bif_trace.c */ -Eterm erl_seq_trace_info(Process *p, Eterm arg1); -void erts_system_monitor_clear(Process *c_p); -void erts_system_profile_clear(Process *c_p); /* beam_load.c */ typedef struct { @@ -786,24 +668,33 @@ typedef struct { Eterm* fname_ptr; /* Pointer to fname table */ } FunctionInfo; -struct LoaderState* erts_alloc_loader_state(void); -Eterm erts_prepare_loading(struct LoaderState*, Process *c_p, +Binary* erts_alloc_loader_state(void); +Eterm erts_module_for_prepared_code(Binary* magic); +Eterm erts_prepare_loading(Binary* loader_state, Process *c_p, Eterm group_leader, Eterm* modp, byte* code, Uint size); -Eterm erts_finish_loading(struct LoaderState* stp, Process* c_p, +Eterm erts_finish_loading(Binary* loader_state, Process* c_p, ErtsProcLocks c_p_locks, Eterm* modp); -Eterm erts_load_module(Process *c_p, ErtsProcLocks c_p_locks, - Eterm group_leader, Eterm* mod, byte* code, Uint size); +Eterm erts_preload_module(Process *c_p, ErtsProcLocks c_p_locks, + Eterm group_leader, Eterm* mod, byte* code, Uint size); void init_load(void); BeamInstr* find_function_from_pc(BeamInstr* pc); Eterm* erts_build_mfa_item(FunctionInfo* fi, Eterm* hp, Eterm args, Eterm* mfa_p); -void erts_lookup_function_info(FunctionInfo* fi, BeamInstr* pc, int full_info); void erts_set_current_function(FunctionInfo* fi, BeamInstr* current); Eterm erts_module_info_0(Process* p, Eterm module); Eterm erts_module_info_1(Process* p, Eterm module, Eterm what); Eterm erts_make_stub_module(Process* p, Eterm Mod, Eterm Beam, Eterm Info); +/* beam_ranges.c */ +void erts_init_ranges(void); +void erts_start_staging_ranges(void); +void erts_end_staging_ranges(int commit); +void erts_update_ranges(BeamInstr* code, Uint size); +void erts_remove_from_ranges(BeamInstr* code); +UWord erts_ranges_sz(void); +void erts_lookup_function_info(FunctionInfo* fi, BeamInstr* pc, int full_info); + /* break.c */ void init_break_handler(void); void erts_set_ignore_break(void); @@ -920,12 +811,6 @@ void MD5Final(unsigned char [16], MD5_CTX *); /* ggc.c */ - -typedef struct { - Uint garbage_collections; - Uint reclaimed; -} ErtsGCInfo; - void erts_gc_info(ErtsGCInfo *gcip); void erts_init_gc(void); int erts_garbage_collect(Process*, int, Eterm*, int); @@ -944,11 +829,6 @@ void erts_free_heap_frags(Process* p); /* io.c */ -struct erl_drv_port_data_lock { - erts_mtx_t mtx; - erts_atomic_t refc; -}; - typedef struct { char *name; char *driver_name; @@ -957,413 +837,55 @@ typedef struct { #define ERTS_SPAWN_DRIVER 1 #define ERTS_SPAWN_EXECUTABLE 2 #define ERTS_SPAWN_ANY (ERTS_SPAWN_DRIVER | ERTS_SPAWN_EXECUTABLE) - int erts_add_driver_entry(ErlDrvEntry *drv, DE_Handle *handle, int driver_list_locked); void erts_destroy_driver(erts_driver_t *drv); -void erts_wake_process_later(Port*, Process*); -int erts_open_driver(erts_driver_t*, Eterm, char*, SysDriverOpts*, int *); -int erts_is_port_ioq_empty(Port *); -void erts_terminate_port(Port *); -void close_port(Eterm); -void init_io(void); -void cleanup_io(void); -void erts_do_exit_port(Port *, Eterm, Eterm); -void erts_port_command(Process *, Eterm, Port *, Eterm); -Eterm erts_port_control(Process*, Port*, Uint, Eterm); -int erts_write_to_port(Eterm caller_id, Port *p, Eterm list); -void print_port_info(int, void *, int); +int erts_save_suspend_process_on_port(Port*, Process*); +Port *erts_open_driver(erts_driver_t*, Eterm, char*, SysDriverOpts*, int *, int *); +void erts_init_io(int, int, int); void erts_raw_port_command(Port*, byte*, Uint); -void driver_report_exit(int, int); +void driver_report_exit(ErlDrvPort, int); LineBuf* allocate_linebuf(int); int async_ready(Port *, void*); -Sint erts_test_next_port(int, Uint); -ErtsPortNames *erts_get_port_names(Eterm); +ErtsPortNames *erts_get_port_names(Eterm, ErlDrvPort); void erts_free_port_names(ErtsPortNames *); Uint erts_port_ioq_size(Port *pp); -void erts_stale_drv_select(Eterm, ErlDrvEvent, int, int); -void erts_port_cleanup(Port *); -void erts_fire_port_monitor(Port *prt, Eterm ref); +void erts_stale_drv_select(Eterm, ErlDrvPort, ErlDrvEvent, int, int); Port *erts_get_heart_port(void); -#ifdef ERTS_SMP -void erts_smp_xports_unlock(Port *); -#endif - #if defined(ERTS_SMP) && defined(ERTS_ENABLE_LOCK_COUNT) void erts_lcnt_enable_io_lock_count(int enable); #endif -#if defined(ERTS_SMP) && defined(ERTS_ENABLE_LOCK_CHECK) -int erts_lc_is_port_locked(Port *); -#endif - -ERTS_GLB_INLINE void erts_smp_port_state_lock(Port*); -ERTS_GLB_INLINE void erts_smp_port_state_unlock(Port*); - -ERTS_GLB_INLINE int erts_smp_port_trylock(Port *prt); -ERTS_GLB_INLINE void erts_smp_port_lock(Port *prt); -ERTS_GLB_INLINE void erts_smp_port_unlock(Port *prt); - -#if ERTS_GLB_INLINE_INCL_FUNC_DEF - -ERTS_GLB_INLINE void -erts_smp_port_state_lock(Port* prt) -{ -#ifdef ERTS_SMP - erts_smp_spin_lock(&prt->state_lck); -#endif -} - -ERTS_GLB_INLINE void -erts_smp_port_state_unlock(Port *prt) -{ -#ifdef ERTS_SMP - erts_smp_spin_unlock(&prt->state_lck); -#endif -} - - -ERTS_GLB_INLINE int -erts_smp_port_trylock(Port *prt) -{ -#ifdef ERTS_SMP - int res; - - ASSERT(erts_smp_atomic_read_nob(&prt->refc) > 0); - erts_smp_atomic_inc_nob(&prt->refc); - res = erts_smp_mtx_trylock(prt->lock); - if (res == EBUSY) { - erts_smp_atomic_dec_nob(&prt->refc); - } - - return res; -#else /* !ERTS_SMP */ - return 0; -#endif -} - -ERTS_GLB_INLINE void -erts_smp_port_lock(Port *prt) -{ -#ifdef ERTS_SMP - ASSERT(erts_smp_atomic_read_nob(&prt->refc) > 0); - erts_smp_atomic_inc_nob(&prt->refc); - erts_smp_mtx_lock(prt->lock); -#endif -} - -ERTS_GLB_INLINE void -erts_smp_port_unlock(Port *prt) -{ -#ifdef ERTS_SMP - erts_aint_t refc; - erts_smp_mtx_unlock(prt->lock); - refc = erts_smp_atomic_dec_read_nob(&prt->refc); - ASSERT(refc >= 0); - if (refc == 0) - erts_port_cleanup(prt); -#endif -} - -#endif /* #if ERTS_GLB_INLINE_INCL_FUNC_DEF */ - - -#define ERTS_INVALID_PORT_OPT(PP, ID, FLGS) \ - (!(PP) || ((PP)->status & (FLGS)) || (PP)->id != (ID)) - -/* port lookup */ - -#define INVALID_PORT(PP, ID) \ - ERTS_INVALID_PORT_OPT((PP), (ID), ERTS_PORT_SFLGS_INVALID_LOOKUP) - -/* Invalidate trace port if anything suspicious, for instance - * that the port is a distribution port or it is busy. - */ -#define INVALID_TRACER_PORT(PP, ID) \ - ERTS_INVALID_PORT_OPT((PP), (ID), ERTS_PORT_SFLGS_INVALID_TRACER_LOOKUP) - -#define ERTS_PORT_SCHED_ID(P, ID) \ - ((Uint) (UWord) erts_prtsd_set((P), ERTS_PSD_SCHED_ID, (void *) (UWord) (ID))) - -#ifdef ERTS_SMP -Port *erts_de2port(DistEntry *, Process *, ErtsProcLocks); -#endif - -#define erts_id2port(ID, P, PL) \ - erts_id2port_sflgs((ID), (P), (PL), ERTS_PORT_SFLGS_INVALID_LOOKUP) - -ERTS_GLB_INLINE Port*erts_id2port_sflgs(Eterm, Process *, ErtsProcLocks, Uint32); -ERTS_GLB_INLINE void erts_port_release(Port *); -ERTS_GLB_INLINE Port*erts_drvport2port(ErlDrvPort); -ERTS_GLB_INLINE Port*erts_drvportid2port(Eterm); -ERTS_GLB_INLINE Uint32 erts_portid2status(Eterm id); -ERTS_GLB_INLINE int erts_is_port_alive(Eterm id); -ERTS_GLB_INLINE int erts_is_valid_tracer_port(Eterm id); -ERTS_GLB_INLINE void erts_port_status_bandor_set(Port *, Uint32, Uint32); -ERTS_GLB_INLINE void erts_port_status_band_set(Port *, Uint32); -ERTS_GLB_INLINE void erts_port_status_bor_set(Port *, Uint32); -ERTS_GLB_INLINE void erts_port_status_set(Port *, Uint32); -ERTS_GLB_INLINE Uint32 erts_port_status_get(Port *); - -#if ERTS_GLB_INLINE_INCL_FUNC_DEF - -ERTS_GLB_INLINE Port* -erts_id2port_sflgs(Eterm id, Process *c_p, ErtsProcLocks c_p_locks, Uint32 sflgs) -{ -#ifdef ERTS_SMP - int no_proc_locks = !c_p || !c_p_locks; -#endif - Port *prt; - - if (is_not_internal_port(id)) - return NULL; - - prt = &erts_port[internal_port_index(id)]; - - erts_smp_port_state_lock(prt); - if (ERTS_INVALID_PORT_OPT(prt, id, sflgs)) { - erts_smp_port_state_unlock(prt); - prt = NULL; - } -#ifdef ERTS_SMP - else { - erts_smp_atomic_inc_nob(&prt->refc); - erts_smp_port_state_unlock(prt); - - if (no_proc_locks) - erts_smp_mtx_lock(prt->lock); - else if (erts_smp_mtx_trylock(prt->lock) == EBUSY) { - /* Unlock process locks, and acquire locks in lock order... */ - erts_smp_proc_unlock(c_p, c_p_locks); - erts_smp_mtx_lock(prt->lock); - erts_smp_proc_lock(c_p, c_p_locks); - } - - /* The id may not have changed... */ - ERTS_SMP_LC_ASSERT(prt->id == id); - /* ... but status may have... */ - if (prt->status & sflgs) { - erts_smp_port_unlock(prt); /* Also decrements refc... */ - prt = NULL; - } - } -#endif - - return prt; -} - -ERTS_GLB_INLINE void -erts_port_release(Port *prt) -{ -#ifdef ERTS_SMP - erts_smp_port_unlock(prt); -#else - if (prt->status & ERTS_PORT_SFLGS_DEAD) - erts_port_cleanup(prt); -#endif -} - -ERTS_GLB_INLINE Port* -erts_drvport2port(ErlDrvPort drvport) -{ - int ix = (int) drvport; - if (ix < 0 || erts_max_ports <= ix) - return NULL; - if (erts_port[ix].status & ERTS_PORT_SFLGS_INVALID_DRIVER_LOOKUP) - return NULL; - ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(&erts_port[ix])); - return &erts_port[ix]; -} - -ERTS_GLB_INLINE Port* -erts_drvportid2port(Eterm id) -{ - int ix; - if (is_not_internal_port(id)) - return NULL; - ix = (int) internal_port_index(id); - if (erts_max_ports <= ix) - return NULL; - if (erts_port[ix].status & ERTS_PORT_SFLGS_INVALID_DRIVER_LOOKUP) - return NULL; - if (erts_port[ix].id != id) - return NULL; - ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(&erts_port[ix])); - return &erts_port[ix]; -} - -ERTS_GLB_INLINE Uint32 -erts_portid2status(Eterm id) -{ - if (is_not_internal_port(id)) - return ERTS_PORT_SFLG_INVALID; - else { - Uint32 status; - int ix = internal_port_index(id); - if (erts_max_ports <= ix) - return ERTS_PORT_SFLG_INVALID; - erts_smp_port_state_lock(&erts_port[ix]); - if (erts_port[ix].id == id) - status = erts_port[ix].status; - else - status = ERTS_PORT_SFLG_INVALID; - erts_smp_port_state_unlock(&erts_port[ix]); - return status; - } -} - -ERTS_GLB_INLINE int -erts_is_port_alive(Eterm id) -{ - return !(erts_portid2status(id) & (ERTS_PORT_SFLG_INVALID - | ERTS_PORT_SFLGS_DEAD)); -} - -ERTS_GLB_INLINE int -erts_is_valid_tracer_port(Eterm id) -{ - return !(erts_portid2status(id) & ERTS_PORT_SFLGS_INVALID_TRACER_LOOKUP); -} - -ERTS_GLB_INLINE void erts_port_status_bandor_set(Port *prt, - Uint32 band_status, - Uint32 bor_status) -{ - ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt)); - erts_smp_port_state_lock(prt); - prt->status &= band_status; - prt->status |= bor_status; - erts_smp_port_state_unlock(prt); -} - -ERTS_GLB_INLINE void erts_port_status_band_set(Port *prt, Uint32 status) -{ - ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt)); - erts_smp_port_state_lock(prt); - prt->status &= status; - erts_smp_port_state_unlock(prt); -} - -ERTS_GLB_INLINE void erts_port_status_bor_set(Port *prt, Uint32 status) -{ - ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt)); - erts_smp_port_state_lock(prt); - prt->status |= status; - erts_smp_port_state_unlock(prt); -} - -ERTS_GLB_INLINE void erts_port_status_set(Port *prt, Uint32 status) -{ - ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt)); - erts_smp_port_state_lock(prt); - prt->status = status; - erts_smp_port_state_unlock(prt); -} - -ERTS_GLB_INLINE Uint32 erts_port_status_get(Port *prt) -{ - Uint32 res; - erts_smp_port_state_lock(prt); - res = prt->status; - erts_smp_port_state_unlock(prt); - return res; -} -#endif /* #if ERTS_GLB_INLINE_INCL_FUNC_DEF */ +/* driver_tab.c */ +typedef void *(*ErtsStaticNifInitFPtr)(void); +ErtsStaticNifInitFPtr erts_static_nif_get_nif_init(const char *name, int len); +int erts_is_static_nif(void *handle); +void erts_init_static_drivers(void); /* erl_drv_thread.c */ void erl_drv_thr_init(void); -/* time.c */ - /* utils.c */ - -/* - * To be used to silence unused result warnings, but do not abuse it. - */ -void erts_silence_warn_unused_result(long unused); - void erts_cleanup_offheap(ErlOffHeap *offheap); -Uint erts_fit_in_bits(Uint); -int list_length(Eterm); -Export* erts_find_function(Eterm, Eterm, unsigned int); -int erts_is_builtin(Eterm, Eterm, int); -Uint32 make_broken_hash(Eterm); -Uint32 block_hash(byte *, unsigned, Uint32); -Uint32 make_hash2(Eterm); -Uint32 make_hash(Eterm); - - -Eterm erts_bld_atom(Uint **hpp, Uint *szp, char *str); -Eterm erts_bld_uint(Uint **hpp, Uint *szp, Uint ui); -Eterm erts_bld_uword(Uint **hpp, Uint *szp, UWord uw); -Eterm erts_bld_uint64(Uint **hpp, Uint *szp, Uint64 ui64); -Eterm erts_bld_sint64(Uint **hpp, Uint *szp, Sint64 si64); -Eterm erts_bld_cons(Uint **hpp, Uint *szp, Eterm car, Eterm cdr); -Eterm erts_bld_tuple(Uint **hpp, Uint *szp, Uint arity, ...); -Eterm erts_bld_tuplev(Uint **hpp, Uint *szp, Uint arity, Eterm terms[]); -Eterm erts_bld_string_n(Uint **hpp, Uint *szp, const char *str, Sint len); -#define erts_bld_string(hpp,szp,str) erts_bld_string_n(hpp,szp,str,strlen(str)) -Eterm erts_bld_list(Uint **hpp, Uint *szp, Sint length, Eterm terms[]); -Eterm erts_bld_2tup_list(Uint **hpp, Uint *szp, - Sint length, Eterm terms1[], Uint terms2[]); -Eterm -erts_bld_atom_uint_2tup_list(Uint **hpp, Uint *szp, - Sint length, Eterm atoms[], Uint uints[]); -Eterm -erts_bld_atom_2uint_3tup_list(Uint **hpp, Uint *szp, Sint length, - Eterm atoms[], Uint uints1[], Uint uints2[]); +Uint64 erts_timestamp_millis(void); + +Export* erts_find_function(Eterm, Eterm, unsigned int, ErtsCodeIndex); Eterm store_external_or_ref_in_proc_(Process *, Eterm); Eterm store_external_or_ref_(Uint **, ErlOffHeap*, Eterm); #define NC_HEAP_SIZE(NC) \ - (ASSERT_EXPR(is_node_container((NC))), \ + (ASSERT(is_node_container((NC))), \ IS_CONST((NC)) ? 0 : (thing_arityval(*boxed_val((NC))) + 1)) #define STORE_NC(Hpp, ETpp, NC) \ - (ASSERT_EXPR(is_node_container((NC))), \ + (ASSERT(is_node_container((NC))), \ IS_CONST((NC)) ? (NC) : store_external_or_ref_((Hpp), (ETpp), (NC))) #define STORE_NC_IN_PROC(Pp, NC) \ - (ASSERT_EXPR(is_node_container((NC))), \ + (ASSERT(is_node_container((NC))), \ IS_CONST((NC)) ? (NC) : store_external_or_ref_in_proc_((Pp), (NC))) -void erts_init_utils(void); -void erts_init_utils_mem(void); - -erts_dsprintf_buf_t *erts_create_tmp_dsbuf(Uint); -void erts_destroy_tmp_dsbuf(erts_dsprintf_buf_t *); - -#if HALFWORD_HEAP -int eq_rel(Eterm a, Eterm* a_base, Eterm b, Eterm* b_base); -# define eq(A,B) eq_rel(A,NULL,B,NULL) -#else -int eq(Eterm, Eterm); -# define eq_rel(A,A_BASE,B,B_BASE) eq(A,B) -#endif - -#define EQ(x,y) (((x) == (y)) || (is_not_both_immed((x),(y)) && eq((x),(y)))) - -#if HALFWORD_HEAP -Sint cmp_rel(Eterm, Eterm*, Eterm, Eterm*); -#define CMP(A,B) cmp_rel(A,NULL,B,NULL) -#else -Sint cmp(Eterm, Eterm); -#define cmp_rel(A,A_BASE,B,B_BASE) cmp(A,B) -#define CMP(A,B) cmp(A,B) -#endif -#define cmp_lt(a,b) (CMP((a),(b)) < 0) -#define cmp_le(a,b) (CMP((a),(b)) <= 0) -#define cmp_eq(a,b) (CMP((a),(b)) == 0) -#define cmp_ne(a,b) (CMP((a),(b)) != 0) -#define cmp_ge(a,b) (CMP((a),(b)) >= 0) -#define cmp_gt(a,b) (CMP((a),(b)) > 0) - -#define CMP_LT(a,b) ((a) != (b) && cmp_lt((a),(b))) -#define CMP_GE(a,b) ((a) == (b) || cmp_ge((a),(b))) -#define CMP_EQ(a,b) ((a) == (b) || cmp_eq((a),(b))) -#define CMP_NE(a,b) ((a) != (b) && cmp_ne((a),(b))) - /* duplicates from big.h */ int term_to_Uint(Eterm term, Uint *up); int term_to_UWord(Eterm, UWord*); @@ -1380,6 +902,9 @@ Sint erts_re_set_loop_limit(Sint limit); void erts_init_bif_binary(void); Sint erts_binary_set_loop_limit(Sint limit); +/* external.c */ +void erts_init_external(void); + /* erl_unicode.c */ void erts_init_unicode(void); Sint erts_unicode_set_loop_limit(Sint limit); @@ -1389,89 +914,34 @@ Sint erts_native_filename_need(Eterm ioterm, int encoding); void erts_copy_utf8_to_utf16_little(byte *target, byte *bytes, int num_chars); int erts_analyze_utf8(byte *source, Uint size, byte **err_pos, Uint *num_chars, int *left); +int erts_analyze_utf8_x(byte *source, Uint size, + byte **err_pos, Uint *num_chars, int *left, + Sint *num_latin1_chars, Uint max_chars); char *erts_convert_filename_to_native(Eterm name, char *statbuf, size_t statbuf_size, ErtsAlcType_t alloc_type, int allow_empty, int allow_atom, Sint *used /* out */); +char *erts_convert_filename_to_encoding(Eterm name, char *statbuf, + size_t statbuf_size, + ErtsAlcType_t alloc_type, + int allow_empty, int allow_atom, + int encoding, + Sint *used /* out */, + Uint extra); +char* erts_convert_filename_to_wchar(byte* bytes, Uint size, + char *statbuf, size_t statbuf_size, + ErtsAlcType_t alloc_type, Sint* used, + Uint extra_wchars); Eterm erts_convert_native_to_filename(Process *p, byte *bytes); +Eterm erts_utf8_to_list(Process *p, Uint num, byte *bytes, Uint sz, Uint left, + Uint *num_built, Uint *num_eaten, Eterm tail); +int erts_utf8_to_latin1(byte* dest, const byte* source, int slen); #define ERTS_UTF8_OK 0 #define ERTS_UTF8_INCOMPLETE 1 #define ERTS_UTF8_ERROR 2 #define ERTS_UTF8_ANALYZE_MORE 3 - -/* erl_trace.c */ -void erts_init_trace(void); -void erts_trace_check_exiting(Eterm exiting); -Eterm erts_set_system_seq_tracer(Process *c_p, - ErtsProcLocks c_p_locks, - Eterm new); -Eterm erts_get_system_seq_tracer(void); -void erts_change_default_tracing(int setflags, Uint *flagsp, Eterm *tracerp); -void erts_get_default_tracing(Uint *flagsp, Eterm *tracerp); -void erts_set_system_monitor(Eterm monitor); -Eterm erts_get_system_monitor(void); - -#ifdef ERTS_SMP -void erts_check_my_tracer_proc(Process *); -void erts_block_sys_msg_dispatcher(void); -void erts_release_sys_msg_dispatcher(void); -void erts_foreach_sys_msg_in_q(void (*func)(Eterm, - Eterm, - Eterm, - ErlHeapFragment *)); -void erts_queue_error_logger_message(Eterm, Eterm, ErlHeapFragment *); -#endif - -void erts_send_sys_msg_proc(Eterm, Eterm, Eterm, ErlHeapFragment *); -void trace_send(Process*, Eterm, Eterm); -void trace_receive(Process*, Eterm); -Uint32 erts_call_trace(Process *p, BeamInstr mfa[], Binary *match_spec, Eterm* args, - int local, Eterm *tracer_pid); -void erts_trace_return(Process* p, BeamInstr* fi, Eterm retval, Eterm *tracer_pid); -void erts_trace_exception(Process* p, BeamInstr mfa[], Eterm class, Eterm value, - Eterm *tracer); -void erts_trace_return_to(Process *p, BeamInstr *pc); -void trace_sched(Process*, Eterm); -void trace_proc(Process*, Process*, Eterm, Eterm); -void trace_proc_spawn(Process*, Eterm pid, Eterm mod, Eterm func, Eterm args); -void save_calls(Process *p, Export *); -void trace_gc(Process *p, Eterm what); -/* port tracing */ -void trace_virtual_sched(Process*, Eterm); -void trace_sched_ports(Port *pp, Eterm); -void trace_sched_ports_where(Port *pp, Eterm, Eterm); -void trace_port(Port *, Eterm what, Eterm data); -void trace_port_open(Port *, Eterm calling_pid, Eterm drv_name); - -/* system_profile */ -void erts_set_system_profile(Eterm profile); -Eterm erts_get_system_profile(void); -void profile_scheduler(Eterm scheduler_id, Eterm); -void profile_scheduler_q(Eterm scheduler_id, Eterm state, Eterm no_schedulers, Uint Ms, Uint s, Uint us); -void profile_runnable_proc(Process* p, Eterm status); -void profile_runnable_port(Port* p, Eterm status); -void erts_system_profile_setup_active_schedulers(void); - -/* system_monitor */ -void monitor_long_gc(Process *p, Uint time); -void monitor_large_heap(Process *p); -void monitor_generic(Process *p, Eterm type, Eterm spec); -Uint erts_trace_flag2bit(Eterm flag); -int erts_trace_flags(Eterm List, - Uint *pMask, Eterm *pTracer, int *pCpuTimestamp); -Eterm erts_bif_trace(int bif_index, Process* p, Eterm* args, BeamInstr *I); - -#ifdef ERTS_SMP -void erts_send_pending_trace_msgs(ErtsSchedulerData *esdp); -#define ERTS_SMP_CHK_PEND_TRACE_MSGS(ESDP) \ -do { \ - if ((ESDP)->pending_trace_msgs) \ - erts_send_pending_trace_msgs((ESDP)); \ -} while (0) -#else -#define ERTS_SMP_CHK_PEND_TRACE_MSGS(ESDP) -#endif +#define ERTS_UTF8_OK_MAX_CHARS 4 void bin_write(int, void*, byte*, size_t); int intlist_to_buf(Eterm, char*, int); /* most callers pass plain char*'s */ @@ -1485,14 +955,68 @@ struct Sint_buf { }; char* Sint_to_buf(Sint, struct Sint_buf*); +#define ERTS_IOLIST_STATE_INITER(C_P, OBJ) \ + {(C_P), 0, 0, (OBJ), {NULL, NULL, NULL, ERTS_ALC_T_INVALID}, 0, 0} + +#define ERTS_IOLIST_STATE_MOVE(TO, FROM) \ + sys_memcpy((void *) (TO), (void *) (FROM), sizeof(ErtsIOListState)) + +#define ERTS_IOLIST_SIZE_YIELDS_COUNT_PER_RED 8 + +typedef struct { + Process *c_p; + ErlDrvSizeT size; + Uint offs; + Eterm obj; + ErtsEStack estack; + int reds_left; + int have_size; +} ErtsIOListState; + +#define ERTS_IOLIST2BUF_STATE_INITER(C_P, OBJ) \ + {ERTS_IOLIST_STATE_INITER((C_P), (OBJ)), {NULL, 0, 0, 0}, NULL, 0, NULL, 0} + +#define ERTS_IOLIST2BUF_STATE_MOVE(TO, FROM) \ + sys_memcpy((void *) (TO), (void *) (FROM), sizeof(ErtsIOList2BufState)) + +#define ERTS_IOLIST_TO_BUF_BYTES_PER_YIELD_COUNT 32 +#define ERTS_IOLIST_TO_BUF_YIELD_COUNT_PER_RED 8 +#define ERTS_IOLIST_TO_BUF_BYTES_PER_RED \ + (ERTS_IOLIST_TO_BUF_YIELD_COUNT_PER_RED*ERTS_IOLIST_TO_BUF_BYTES_PER_YIELD_COUNT) + +typedef struct { + ErtsIOListState iolist; + struct { + byte *bptr; + size_t size; + Uint bitoffs; + Uint bitsize; + } bcopy; + char *buf; + ErlDrvSizeT len; + Eterm *objp; + int offset; +} ErtsIOList2BufState; + #define ERTS_IOLIST_OK 0 #define ERTS_IOLIST_OVERFLOW 1 #define ERTS_IOLIST_TYPE 2 - -Eterm buf_to_intlist(Eterm**, char*, size_t, Eterm); /* most callers pass plain char*'s */ -int io_list_to_buf(Eterm, char*, int); -int io_list_to_buf2(Eterm, char*, int); -int erts_iolist_size(Eterm, Uint *); +#define ERTS_IOLIST_YIELD 3 + +Eterm buf_to_intlist(Eterm**, const char*, size_t, Eterm); /* most callers pass plain char*'s */ + +#define ERTS_IOLIST_TO_BUF_OVERFLOW (~((ErlDrvSizeT) 0)) +#define ERTS_IOLIST_TO_BUF_TYPE_ERROR (~((ErlDrvSizeT) 1)) +#define ERTS_IOLIST_TO_BUF_YIELD (~((ErlDrvSizeT) 2)) +#define ERTS_IOLIST_TO_BUF_FAILED(R) \ + (((R) & (~((ErlDrvSizeT) 3))) == (~((ErlDrvSizeT) 3))) +#define ERTS_IOLIST_TO_BUF_SUCCEEDED(R) \ + (!ERTS_IOLIST_TO_BUF_FAILED((R))) + +ErlDrvSizeT erts_iolist_to_buf(Eterm, char*, ErlDrvSizeT); +ErlDrvSizeT erts_iolist_to_buf_yielding(ErtsIOList2BufState *); +int erts_iolist_size_yielding(ErtsIOListState *state); +int erts_iolist_size(Eterm, ErlDrvSizeT *); int is_string(Eterm); void erl_at_exit(void (*) (void*), void*); Eterm collect_memory(Process *); @@ -1525,6 +1049,7 @@ Eterm erts_gc_length_1(Process* p, Eterm* reg, Uint live); Eterm erts_gc_size_1(Process* p, Eterm* reg, Uint live); Eterm erts_gc_bit_size_1(Process* p, Eterm* reg, Uint live); Eterm erts_gc_byte_size_1(Process* p, Eterm* reg, Uint live); +Eterm erts_gc_map_size_1(Process* p, Eterm* reg, Uint live); Eterm erts_gc_abs_1(Process* p, Eterm* reg, Uint live); Eterm erts_gc_float_1(Process* p, Eterm* reg, Uint live); Eterm erts_gc_round_1(Process* p, Eterm* reg, Uint live); @@ -1537,39 +1062,6 @@ Uint erts_current_reductions(Process* current, Process *p); int erts_print_system_version(int to, void *arg, Process *c_p); int erts_hibernate(Process* c_p, Eterm module, Eterm function, Eterm args, Eterm* reg); -#define seq_trace_output(token, msg, type, receiver, process) \ -seq_trace_output_generic((token), (msg), (type), (receiver), (process), NIL) -#define seq_trace_output_exit(token, msg, type, receiver, exitfrom) \ -seq_trace_output_generic((token), (msg), (type), (receiver), NULL, (exitfrom)) -void seq_trace_output_generic(Eterm token, Eterm msg, Uint type, - Eterm receiver, Process *process, Eterm exitfrom); - -int seq_trace_update_send(Process *process); - -Eterm erts_seq_trace(Process *process, - Eterm atom_type, Eterm atom_true_or_false, - int build_result); - -struct trace_pattern_flags { - unsigned int breakpoint : 1; /* Set if any other is set */ - unsigned int local : 1; /* Local call trace breakpoint */ - unsigned int meta : 1; /* Metadata trace breakpoint */ - unsigned int call_count : 1; /* Fast call count breakpoint */ - unsigned int call_time : 1; /* Fast call time breakpoint */ -}; -extern const struct trace_pattern_flags erts_trace_pattern_flags_off; -extern int erts_call_time_breakpoint_tracing; -int erts_set_trace_pattern(Eterm* mfa, int specified, - Binary* match_prog_set, Binary *meta_match_prog_set, - int on, struct trace_pattern_flags, - Eterm meta_tracer_pid); -void -erts_get_default_trace_pattern(int *trace_pattern_is_on, - Binary **match_spec, - Binary **meta_match_spec, - struct trace_pattern_flags *trace_pattern_flags, - Eterm *meta_tracer_pid); -void erts_bif_trace_init(void); /* ** Call_trace uses this API for the parameter matching functions @@ -1596,9 +1088,10 @@ Eterm erts_match_set_lint(Process *p, Eterm matchexpr); extern void erts_match_set_release_result(Process* p); enum erts_pam_run_flags { - ERTS_PAM_TMP_RESULT=0, - ERTS_PAM_COPY_RESULT=1, - ERTS_PAM_CONTIGUOUS_TUPLE=2 + ERTS_PAM_TMP_RESULT=1, + ERTS_PAM_COPY_RESULT=2, + ERTS_PAM_CONTIGUOUS_TUPLE=4, + ERTS_PAM_IGNORE_TRACE_SILENT=8 }; extern Eterm erts_match_set_run(Process *p, Binary *mpsp, Eterm *args, int num_args, @@ -1615,20 +1108,21 @@ extern void erts_match_prog_foreach_offheap(Binary *b, breakpoint functions */ #define MATCH_SET_EXCEPTION_TRACE (0x4) /* exception trace requested */ #define MATCH_SET_RX_TRACE (MATCH_SET_RETURN_TRACE|MATCH_SET_EXCEPTION_TRACE) -/* - * Flag values when tracing bif - * Future note: flag field is 8 bits - */ -#define BIF_TRACE_AS_LOCAL (0x1) -#define BIF_TRACE_AS_GLOBAL (0x2) -#define BIF_TRACE_AS_META (0x4) -#define BIF_TRACE_AS_CALL_TIME (0x8) extern erts_driver_t vanilla_driver; extern erts_driver_t spawn_driver; extern erts_driver_t fd_driver; +int erts_beam_jump_table(void); + /* Should maybe be placed in erl_message.h, but then we get an include mess. */ +ERTS_GLB_INLINE Eterm * +erts_alloc_message_heap_state(Uint size, + ErlHeapFragment **bpp, + ErlOffHeap **ohpp, + Process *receiver, + ErtsProcLocks *receiver_locks, + erts_aint32_t *statep); ERTS_GLB_INLINE Eterm * erts_alloc_message_heap(Uint size, @@ -1651,16 +1145,22 @@ erts_alloc_message_heap(Uint size, */ ERTS_GLB_INLINE Eterm * -erts_alloc_message_heap(Uint size, - ErlHeapFragment **bpp, - ErlOffHeap **ohpp, - Process *receiver, - ErtsProcLocks *receiver_locks) +erts_alloc_message_heap_state(Uint size, + ErlHeapFragment **bpp, + ErlOffHeap **ohpp, + Process *receiver, + ErtsProcLocks *receiver_locks, + erts_aint32_t *statep) { Eterm *hp; + erts_aint32_t state; #ifdef ERTS_SMP int locked_main = 0; - ErtsProcLocks ulocks = *receiver_locks & ERTS_PROC_LOCKS_MSG_SEND; + state = erts_smp_atomic32_read_acqb(&receiver->state); + if (statep) + *statep = state; + if (state & (ERTS_PSFLG_EXITING|ERTS_PSFLG_PENDING_EXIT)) + goto allocate_in_mbuf; #endif if (size > (Uint) INT_MAX) @@ -1676,20 +1176,24 @@ erts_alloc_message_heap(Uint size, #ifdef ERTS_SMP try_allocate_on_heap: #endif - if (ERTS_PROC_IS_EXITING(receiver) + state = erts_smp_atomic32_read_nob(&receiver->state); + if (statep) + *statep = state; + if ((state & (ERTS_PSFLG_EXITING|ERTS_PSFLG_PENDING_EXIT)) + || (receiver->flags & F_DISABLE_GC) || HEAP_LIMIT(receiver) - HEAP_TOP(receiver) <= size) { + /* + * The heap is either potentially in an inconsistent + * state, or not large enough. + */ #ifdef ERTS_SMP - if (locked_main) - ulocks |= ERTS_PROC_LOCK_MAIN; + if (locked_main) { + *receiver_locks &= ~ERTS_PROC_LOCK_MAIN; + erts_smp_proc_unlock(receiver, ERTS_PROC_LOCK_MAIN); + } #endif goto allocate_in_mbuf; } -#ifdef ERTS_SMP - if (ulocks) { - erts_smp_proc_unlock(receiver, ulocks); - *receiver_locks &= ~ulocks; - } -#endif hp = HEAP_TOP(receiver); HEAP_TOP(receiver) = hp + size; *bpp = NULL; @@ -1705,12 +1209,6 @@ erts_alloc_message_heap(Uint size, else { ErlHeapFragment *bp; allocate_in_mbuf: -#ifdef ERTS_SMP - if (ulocks) { - *receiver_locks &= ~ulocks; - erts_smp_proc_unlock(receiver, ulocks); - } -#endif bp = new_message_buffer(size); hp = bp->mem; *bpp = bp; @@ -1720,6 +1218,17 @@ erts_alloc_message_heap(Uint size, return hp; } +ERTS_GLB_INLINE Eterm * +erts_alloc_message_heap(Uint size, + ErlHeapFragment **bpp, + ErlOffHeap **ohpp, + Process *receiver, + ErtsProcLocks *receiver_locks) +{ + return erts_alloc_message_heap_state(size, bpp, ohpp, receiver, + receiver_locks, NULL); +} + #endif /* #if ERTS_GLB_INLINE_INCL_FUNC_DEF */ #if !HEAP_ON_C_STACK @@ -1786,6 +1295,13 @@ erts_alloc_message_heap(Uint size, # define UnUseTmpHeapNoproc(Size) /* Nothing */ #endif /* HEAP_ON_C_STACK */ +ERTS_GLB_INLINE void dtrace_pid_str(Eterm pid, char *process_buf); +ERTS_GLB_INLINE void dtrace_proc_str(Process *process, char *process_buf); +ERTS_GLB_INLINE void dtrace_port_str(Port *port, char *port_buf); +ERTS_GLB_INLINE void dtrace_fun_decode(Process *process, + Eterm module, Eterm function, int arity, + char *process_buf, char *mfa_buf); + #if ERTS_GLB_INLINE_INCL_FUNC_DEF #include "dtrace-wrapper.h" @@ -1802,15 +1318,15 @@ dtrace_pid_str(Eterm pid, char *process_buf) ERTS_GLB_INLINE void dtrace_proc_str(Process *process, char *process_buf) { - dtrace_pid_str(process->id, process_buf); + dtrace_pid_str(process->common.id, process_buf); } ERTS_GLB_INLINE void dtrace_port_str(Port *port, char *port_buf) { erts_snprintf(port_buf, DTRACE_TERM_BUF_SIZE, "#Port<%lu.%lu>", - port_channel_no(port->id), - port_number(port->id)); + port_channel_no(port->common.id), + port_number(port->common.id)); } ERTS_GLB_INLINE void diff --git a/erts/emulator/beam/index.c b/erts/emulator/beam/index.c index 75d0d598a2..79c3ecf1b3 100644 --- a/erts/emulator/beam/index.c +++ b/erts/emulator/beam/index.c @@ -68,14 +68,14 @@ erts_index_init(ErtsAlcType_t type, IndexTable* t, char* name, return t; } -int -index_put(IndexTable* t, void* tmpl) +IndexSlot* +index_put_entry(IndexTable* t, void* tmpl) { int ix; IndexSlot* p = (IndexSlot*) hash_put(&t->htable, tmpl); if (p->index >= 0) { - return p->index; + return p; } ix = t->entries; @@ -93,7 +93,7 @@ index_put(IndexTable* t, void* tmpl) t->entries++; p->index = ix; t->seg_table[ix>>INDEX_PAGE_SHIFT][ix&INDEX_PAGE_MASK] = p; - return ix; + return p; } int index_get(IndexTable* t, void* tmpl) @@ -136,3 +136,18 @@ void erts_index_merge(Hash* src, IndexTable* dst) } } } + +void index_erase_latest_from(IndexTable* t, Uint from_ix) +{ + if(from_ix < (Uint)t->entries) { + int ix; + for (ix = from_ix; ix < t->entries; ix++) { + IndexSlot* obj = t->seg_table[ix>>INDEX_PAGE_SHIFT][ix&INDEX_PAGE_MASK]; + hash_erase(&t->htable, obj); + } + t->entries = from_ix; + } + else { + ASSERT(from_ix == t->entries); + } +} diff --git a/erts/emulator/beam/index.h b/erts/emulator/beam/index.h index 4eb9b1f992..537bc11056 100644 --- a/erts/emulator/beam/index.h +++ b/erts/emulator/beam/index.h @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 1996-2009. All Rights Reserved. + * Copyright Ericsson AB 1996-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -55,12 +55,24 @@ void index_info(int, void *, IndexTable*); int index_table_sz(IndexTable *); int index_get(IndexTable*, void*); -int index_put(IndexTable*, void*); + +IndexSlot* index_put_entry(IndexTable*, void*); void erts_index_merge(Hash*, IndexTable*); +/* Erase all entries with index 'ix' and higher +*/ +void index_erase_latest_from(IndexTable*, Uint ix); + +ERTS_GLB_INLINE int index_put(IndexTable*, void*); ERTS_GLB_INLINE IndexSlot* erts_index_lookup(IndexTable*, Uint); #if ERTS_GLB_INLINE_INCL_FUNC_DEF + +ERTS_GLB_INLINE int index_put(IndexTable* t, void* tmpl) +{ + return index_put_entry(t, tmpl)->index; +} + ERTS_GLB_INLINE IndexSlot* erts_index_lookup(IndexTable* t, Uint ix) { diff --git a/erts/emulator/beam/io.c b/erts/emulator/beam/io.c index 609fe9f5fb..0f86d8e41d 100644 --- a/erts/emulator/beam/io.c +++ b/erts/emulator/beam/io.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 1996-2012. All Rights Reserved. + * Copyright Ericsson AB 1996-2014. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -43,42 +43,53 @@ #include "erl_version.h" #include "error.h" #include "erl_async.h" +#define ERTS_WANT_EXTERNAL_TAGS +#include "external.h" #include "dtrace-wrapper.h" +#include "erl_map.h" extern ErlDrvEntry fd_driver_entry; +#ifndef __OSE__ extern ErlDrvEntry vanilla_driver_entry; +#endif extern ErlDrvEntry spawn_driver_entry; extern ErlDrvEntry *driver_tab[]; /* table of static drivers, only used during initialization */ erts_driver_t *driver_list; /* List of all drivers, static and dynamic. */ -erts_smp_mtx_t erts_driver_list_lock; /* Mutex for driver list */ +erts_smp_rwmtx_t erts_driver_list_lock; /* Mutex for driver list */ static erts_smp_tsd_key_t driver_list_lock_status_key; /*stop recursive locks when calling driver init */ static erts_smp_tsd_key_t driver_list_last_error_key; /* Save last DDLL error on a per thread basis (for BC interfaces) */ -Port* erts_port; /* The port table */ +ErtsPTab erts_port erts_align_attribute(ERTS_CACHE_LINE_SIZE); /* The port table */ erts_smp_atomic_t erts_bytes_out; /* No bytes sent out of the system */ erts_smp_atomic_t erts_bytes_in; /* No bytes gotten into the system */ -Uint erts_max_ports; -Uint erts_port_tab_index_mask; - const ErlDrvTermData driver_term_nil = (ErlDrvTermData)NIL; +const Port erts_invalid_port = {{ERTS_INVALID_PORT}}; + erts_driver_t vanilla_driver; erts_driver_t spawn_driver; erts_driver_t fd_driver; +int erts_port_synchronous_ops = 0; +int erts_port_schedule_all_ops = 0; +int erts_port_parallelism = 0; + +static void deliver_result(Eterm sender, Eterm pid, Eterm res); static int init_driver(erts_driver_t *, ErlDrvEntry *, DE_Handle *); static void terminate_port(Port *p); static void pdl_init(void); #ifdef ERTS_SMP static void driver_monitor_lock_pdl(Port *p); static void driver_monitor_unlock_pdl(Port *p); +#define DRV_MONITOR_LOOKUP_PORT_LOCK_PDL(Port) erts_thr_drvport2port((Port), 1) #define DRV_MONITOR_LOCK_PDL(Port) driver_monitor_lock_pdl(Port) #define DRV_MONITOR_UNLOCK_PDL(Port) driver_monitor_unlock_pdl(Port) #else +#define DRV_MONITOR_LOOKUP_PORT_LOCK_PDL(Port) erts_thr_drvport2port((Port), 0) #define DRV_MONITOR_LOCK_PDL(Port) /* nothing */ #define DRV_MONITOR_UNLOCK_PDL(Port) /* nothing */ #endif @@ -89,36 +100,10 @@ static void driver_monitor_unlock_pdl(Port *p); static ERTS_INLINE ErlIOQueue* drvport2ioq(ErlDrvPort drvport) { - int ix = (int) drvport; - Uint32 status; - - if (ix < 0 || erts_max_ports <= ix) + Port *prt = erts_thr_drvport2port(drvport, 0); + if (prt == ERTS_INVALID_ERL_DRV_PORT) return NULL; - - if (erts_get_scheduler_data()) { - ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(&erts_port[ix])); - ERTS_LC_ASSERT(!erts_port[ix].port_data_lock - || erts_lc_mtx_is_locked( - &erts_port[ix].port_data_lock->mtx)); - - status = erts_port[ix].status; - } - else { - erts_smp_port_state_lock(&erts_port[ix]); - status = erts_port[ix].status; - erts_smp_port_state_unlock(&erts_port[ix]); - - ERTS_LC_ASSERT((status & ERTS_PORT_SFLGS_INVALID_DRIVER_LOOKUP) - || erts_port[ix].port_data_lock); - ERTS_LC_ASSERT(!erts_port[ix].port_data_lock - || erts_lc_mtx_is_locked( - &erts_port[ix].port_data_lock->mtx)); - - } - - return ((status & ERTS_PORT_SFLGS_INVALID_DRIVER_LOOKUP) - ? NULL - : &erts_port[ix].ioq); + return &prt->ioq; } static ERTS_INLINE int @@ -194,29 +179,31 @@ typedef struct line_buf_context { \ dtrace_proc_str((PID), process_str); \ dtrace_port_str((PORT), port_str); -#endif -/* The 'number' field in a port now has two parts: the lowest bits - contain the index in the port table, and the higher bits are a counter - which is incremented each time we look for a free port and start from - the beginning of the table. erts_max_ports is the number of file descriptors, - rounded up to a power of 2. - To get the index from a port, use the macro 'internal_port_index'; - 'port_number' returns the whole number field. -*/ +void +dtrace_drvport_str(ErlDrvPort drvport, char *port_buf) +{ + Port *port = erts_drvport2port(drvport); -static erts_smp_spinlock_t get_free_port_lck; -static Uint last_port_num; -static Uint port_num_mask; -erts_smp_atomic32_t erts_ports_snapshot; /* Identifies the _next_ snapshot (not the ongoing) */ + if (port != ERTS_INVALID_ERL_DRV_PORT) + erts_snprintf(port_buf, DTRACE_TERM_BUF_SIZE, "#Port<%lu.%lu>", + port_channel_no(port->common.id), + port_number(port->common.id)); + else + erts_snprintf(port_buf, DTRACE_TERM_BUF_SIZE, "#Port<INVALID>", + port_channel_no(port->common.id), + port_number(port->common.id)); +} +#endif static ERTS_INLINE void kill_port(Port *pp) { ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(pp)); + erts_ptab_delete_element(&erts_port, &pp->common); /* Time of death */ erts_port_task_free_port(pp); - ASSERT(pp->status & ERTS_PORT_SFLGS_DEAD); + /* In non-smp case the port structure may have been deallocated now */ } #ifdef ERTS_SMP @@ -227,148 +214,282 @@ erts_lc_is_port_locked(Port *prt) { if (!prt) return 0; + ERTS_SMP_LC_ASSERT(prt->lock); return erts_smp_lc_mtx_is_locked(prt->lock); } #endif #endif /* #ifdef ERTS_SMP */ -static int -get_free_port(void) -{ - Uint num; - Uint tries = erts_max_ports; - Port* port; +static void initq(Port* prt); - erts_smp_spin_lock(&get_free_port_lck); - num = last_port_num + 1; - for (;; ++num) { - port = &erts_port[num & erts_port_tab_index_mask]; +#if defined(ERTS_ENABLE_LOCK_CHECK) || defined(ERTS_ENABLE_LOCK_COUNT) +#define ERTS_PORT_INIT_INSTR_NEED_ID 1 +#else +#define ERTS_PORT_INIT_INSTR_NEED_ID 0 +#endif - erts_smp_port_state_lock(port); - if (port->status & ERTS_PORT_SFLG_FREE) { - last_port_num = num; - erts_smp_spin_unlock(&get_free_port_lck); - break; - } - erts_smp_port_state_unlock(port); +static ERTS_INLINE void port_init_instr(Port *prt +#if ERTS_PORT_INIT_INSTR_NEED_ID + , Eterm id +#endif + ) +{ +#if !ERTS_PORT_INIT_INSTR_NEED_ID + Eterm id = NIL; /* Not used */ +#endif - if (--tries == 0) { - erts_smp_spin_unlock(&get_free_port_lck); - return -1; - } + /* + * Stuff that need to be initialized with the port id + * in the instrumented case, but not in the normal case. + */ +#ifdef ERTS_SMP + ASSERT(prt->drv_ptr && prt->lock); + if (!prt->drv_ptr->lock) { + char *lock_str = "port_lock"; + erts_mtx_init_locked_x(prt->lock, lock_str, id, +#ifdef ERTS_ENABLE_LOCK_COUNT + (erts_lcnt_rt_options & ERTS_LCNT_OPT_PORTLOCK) +#else + 0 +#endif + ); } - port->status = ERTS_PORT_SFLG_INITIALIZING; +#endif + erts_port_task_init_sched(&prt->sched, id); +} + +#if !ERTS_PORT_INIT_INSTR_NEED_ID +static ERTS_INLINE void port_init_instr_abort(Port *prt) +{ #ifdef ERTS_SMP - ERTS_SMP_LC_ASSERT(erts_smp_atomic_read_nob(&port->refc) == 0); - erts_smp_atomic_set_nob(&port->refc, 2); /* Port alive + lock */ -#endif - erts_smp_port_state_unlock(port); - return num & port_num_mask; + ASSERT(prt->drv_ptr && prt->lock); + if (!prt->drv_ptr->lock) { + erts_mtx_unlock(prt->lock); + erts_mtx_destroy(prt->lock); + } +#endif + erts_port_task_fini_sched(&prt->sched); } +#endif -/* - * erts_test_next_port() is only used for testing. - */ -Sint -erts_test_next_port(int set, Uint next) +static void insert_port_struct(void *vprt, Eterm data) { - Uint i, num; - Sint res = -1; + Port *prt = (Port *) vprt; + Eterm id = make_internal_port(data); +#if ERTS_PORT_INIT_INSTR_NEED_ID + /* + * This cannot be done earlier in the instrumented + * case since we don't now 'id' until now. + */ + port_init_instr(prt, id); +#endif + prt->common.id = id; + erts_atomic32_init_relb(&prt->state, ERTS_PORT_SFLG_INITIALIZING); +} + +#define ERTS_CREATE_PORT_FLAG_PARALLELISM (1 << 0) - erts_smp_spin_lock(&get_free_port_lck); - if (set) { - last_port_num = (next - 1) & port_num_mask; +static Port *create_port(char *name, + erts_driver_t *driver, + erts_mtx_t *driver_lock, + int create_flags, + Eterm pid, + int *enop) +{ + ErtsPortTaskBusyPortQ *busy_port_queue; + Port *prt; + char *p; + size_t port_size, busy_port_queue_size, size; + erts_aint32_t state = ERTS_PORT_SFLG_CONNECTED; + erts_aint32_t x_pts_flgs = 0; +#ifdef DEBUG + /* Make sure the debug flags survives until port is freed */ + state |= ERTS_PORT_SFLG_PORT_DEBUG; +#endif + +#ifdef ERTS_SMP + if (!driver_lock) { + /* Align size for mutex following port struct */ + port_size = size = ERTS_ALC_DATA_ALIGN_SIZE(sizeof(Port)); + size += sizeof(erts_mtx_t); } - num = last_port_num + 1; + else +#endif + port_size = size = ERTS_ALC_DATA_ALIGN_SIZE(sizeof(Port)); - for (i=0; i < erts_max_ports && res<0; ++i, ++num) { - - Port* port = &erts_port[num & erts_port_tab_index_mask]; + busy_port_queue_size + = ((driver->flags & ERL_DRV_FLAG_NO_BUSY_MSGQ) + ? 0 + : ERTS_ALC_DATA_ALIGN_SIZE(sizeof(ErtsPortTaskBusyPortQ))); + size += busy_port_queue_size; - erts_smp_port_state_lock(port); + size += sys_strlen(name) + 1; - if (port->status & ERTS_PORT_SFLG_FREE) { - last_port_num = num - 1; - res = num & port_num_mask; - } - erts_smp_port_state_unlock(port); + p = erts_alloc_fnf(ERTS_ALC_T_PORT, size); + if (!p) { + if (enop) + *enop = ENOMEM; + return NULL; } - erts_smp_spin_unlock(&get_free_port_lck); - return res; -} + prt = (Port *) p; + p += port_size; -static void port_cleanup(Port *prt); + if (!busy_port_queue_size) + busy_port_queue = NULL; + else { + busy_port_queue = (ErtsPortTaskBusyPortQ *) p; + p += busy_port_queue_size; + } #ifdef ERTS_SMP - -static void -sched_port_cleanup(void *vprt) -{ - Port *prt = (Port *) vprt; - erts_smp_mtx_lock(prt->lock); - port_cleanup(prt); -} - + if (driver_lock) { + prt->lock = driver_lock; + erts_mtx_lock(driver_lock); + } + else { + prt->lock = (erts_mtx_t *) p; + p += sizeof(erts_mtx_t); + state |= ERTS_PORT_SFLG_PORT_SPECIFIC_LOCK; + } + erts_smp_atomic_set_nob(&prt->run_queue, + (erts_aint_t) erts_get_runq_current(NULL)); + prt->xports = NULL; +#else + erts_atomic32_init_nob(&prt->refc, 1); + prt->cleanup = 0; #endif + + erts_port_task_pre_init_sched(&prt->sched, busy_port_queue); -void -erts_port_cleanup(Port *prt) -{ + prt->name = p; + sys_strcpy(p, name); + prt->drv_ptr = driver; + ERTS_P_LINKS(prt) = NULL; + ERTS_P_MONITORS(prt) = NULL; + prt->linebuf = NULL; + prt->suspended = NULL; + erts_init_port_data(prt); + prt->port_data_lock = NULL; + prt->control_flags = 0; + prt->bytes_in = 0; + prt->bytes_out = 0; + prt->dist_entry = NULL; + ERTS_PORT_INIT_CONNECTED(prt, pid); + prt->common.u.alive.reg = NULL; #ifdef ERTS_SMP - if (erts_smp_mtx_trylock(prt->lock) == EBUSY) - erts_schedule_misc_op(sched_port_cleanup, (void *) prt); - else + prt->common.u.alive.ptimer = NULL; +#else + sys_memset(&prt->common.u.alive.tm, 0, sizeof(ErlTimer)); #endif - port_cleanup(prt); -} + erts_port_task_handle_init(&prt->timeout_task); + prt->psd = NULL; + prt->drv_data = (SWord) 0; + prt->os_pid = -1; -void -port_cleanup(Port *prt) -{ + /* Set default tracing */ + erts_get_default_tracing(&ERTS_TRACE_FLAGS(prt), &ERTS_TRACER_PROC(prt)); + + ASSERT(((char *) prt) == ((char *) &prt->common)); + +#if !ERTS_PORT_INIT_INSTR_NEED_ID + /* + * When 'id' isn't needed (the normal case), it is better to + * do the initialization here avoiding unnecessary contention + * on table... + */ + port_init_instr(prt); +#endif + + if (!erts_ptab_new_element(&erts_port, + &prt->common, + (void *) prt, + insert_port_struct)) { + +#if !ERTS_PORT_INIT_INSTR_NEED_ID + port_init_instr_abort(prt); +#endif #ifdef ERTS_SMP - Uint32 port_specific; - erts_smp_mtx_t *mtx; + if (driver_lock) + erts_mtx_unlock(driver_lock); #endif - erts_driver_t *driver; + if (enop) + *enop = 0; + erts_free(ERTS_ALC_T_PORT, prt); + return NULL; + } - erts_smp_port_state_lock(prt); + ASSERT(prt == (Port *) (erts_ptab_pix2intptr_nob( + &erts_port, + internal_port_index(prt->common.id)))); - ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt)); - driver = prt->drv_ptr; - prt->drv_ptr = NULL; - ASSERT(driver); + initq(prt); -#ifdef ERTS_SMP + ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt)); - ASSERT(prt->status & ERTS_PORT_SFLG_FREE_SCHEDULED); - ERTS_SMP_LC_ASSERT(erts_smp_atomic_read_nob(&prt->refc) == 0); + if (erts_port_schedule_all_ops) + x_pts_flgs |= ERTS_PTS_FLG_FORCE_SCHED; - port_specific = (prt->status & ERTS_PORT_SFLG_PORT_SPECIFIC_LOCK); + if (create_flags & ERTS_CREATE_PORT_FLAG_PARALLELISM) + x_pts_flgs |= ERTS_PTS_FLG_PARALLELISM; - mtx = prt->lock; - ASSERT(mtx); + if (x_pts_flgs) + erts_smp_atomic32_read_bor_nob(&prt->sched.flags, x_pts_flgs); - prt->lock = NULL; + erts_atomic32_set_relb(&prt->state, state); + return prt; +} - ASSERT(prt->status & ERTS_PORT_SFLG_PORT_DEBUG); - ASSERT(!(prt->status & ERTS_PORT_SFLG_FREE)); - prt->status = ERTS_PORT_SFLG_FREE; +#ifndef ERTS_SMP +void +erts_port_cleanup(Port *prt) +{ + if (prt->drv_ptr && prt->drv_ptr->handle) + erts_ddll_dereference_driver(prt->drv_ptr->handle); + prt->drv_ptr = NULL; + erts_port_dec_refc(prt); +} +#endif - erts_smp_port_state_unlock(prt); - erts_smp_mtx_unlock(mtx); +void +erts_port_free(Port *prt) +{ +#if defined(ERTS_SMP) || defined(DEBUG) || defined(ERTS_ENABLE_LOCK_CHECK) + erts_aint32_t state = erts_atomic32_read_nob(&prt->state); +#endif + ERTS_LC_ASSERT(state & (ERTS_PORT_SFLG_INITIALIZING + | ERTS_PORT_SFLG_FREE)); + ASSERT(state & ERTS_PORT_SFLG_PORT_DEBUG); - if (port_specific) { - erts_smp_mtx_destroy(mtx); - erts_free(ERTS_ALC_T_PORT_LOCK, mtx); - } +#ifdef ERTS_SMP + ERTS_LC_ASSERT(erts_atomic32_read_nob(&prt->common.refc) == 0); +#else + ERTS_LC_ASSERT(erts_atomic32_read_nob(&prt->refc) == 0); #endif - if (driver->handle) - erts_ddll_dereference_driver(driver->handle); -} + erts_port_task_fini_sched(&prt->sched); +#ifdef ERTS_SMP + ASSERT(prt->lock); + if (state & ERTS_PORT_SFLG_PORT_SPECIFIC_LOCK) + erts_mtx_destroy(prt->lock); + + /* + * We cannot dereference a driver using driver + * locking until here in smp case. Otherwise, + * the driver lock may still be in use by others. + * + * In the non-smp case we cannot do it here since + * this function may be called by non-scheduler + * threads. This is done in erts_port_cleanup() + * in the non-smp case. + */ + if (prt->drv_ptr->handle) + erts_ddll_dereference_driver(prt->drv_ptr->handle); +#endif + erts_free(ERTS_ALC_T_PORT, prt); +} /* ** Initialize v_start to point to the small fixed vector. @@ -416,94 +537,21 @@ static void stopq(Port* prt) if (prt->port_data_lock) { driver_pdl_unlock(prt->port_data_lock); driver_pdl_dec_refc(prt->port_data_lock); - prt->port_data_lock = NULL; - } -} - - - -static void -setup_port(Port* prt, Eterm pid, erts_driver_t *driver, - ErlDrvData drv_data, char *name, Uint32 xstatus) -{ - ErtsRunQueue *runq = erts_get_runq_current(NULL); - char *new_name, *old_name; -#ifdef DEBUG - /* Make sure the debug flags survives until port is freed */ - xstatus |= ERTS_PORT_SFLG_PORT_DEBUG; -#endif - ASSERT(runq); - ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt)); - - - new_name = (char*) erts_alloc(ERTS_ALC_T_PORT_NAME, sys_strlen(name)+1); - sys_strcpy(new_name, name); - erts_smp_runq_lock(runq); - erts_smp_port_state_lock(prt); - prt->os_pid = -1; - prt->status = ERTS_PORT_SFLG_CONNECTED | xstatus; - prt->snapshot = erts_smp_atomic32_read_nob(&erts_ports_snapshot); - old_name = prt->name; - prt->name = new_name; -#ifdef ERTS_SMP - erts_smp_atomic_set_nob(&prt->run_queue, (erts_aint_t) runq); -#endif - ASSERT(!prt->drv_ptr); - prt->drv_ptr = driver; - erts_smp_port_state_unlock(prt); - erts_smp_runq_unlock(runq); -#ifdef ERTS_SMP - ASSERT(!prt->xports); -#endif - if (old_name) { - erts_free(ERTS_ALC_T_PORT_NAME, (void *) old_name); } - - prt->control_flags = 0; - prt->connected = pid; - prt->drv_data = (SWord) drv_data; - prt->bytes_in = 0; - prt->bytes_out = 0; - prt->dist_entry = NULL; - prt->reg = NULL; -#ifdef ERTS_SMP - prt->ptimer = NULL; -#else - sys_memset(&prt->tm, 0, sizeof(ErlTimer)); -#endif - erts_port_task_handle_init(&prt->timeout_task); - prt->suspended = NULL; - sys_strcpy(prt->name, name); - prt->nlinks = NULL; - prt->monitors = NULL; - prt->linebuf = NULL; - prt->bp = NULL; - prt->data = am_undefined; - /* Set default tracing */ - erts_get_default_tracing(&(prt->trace_flags), &(prt->tracer_proc)); - - prt->psd = NULL; - - initq(prt); } -void -erts_wake_process_later(Port *prt, Process *process) +int +erts_save_suspend_process_on_port(Port *prt, Process *process) { - ErtsProcList** p; - ErtsProcList* new_p; - - ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt)); - - if (prt->status & ERTS_PORT_SFLGS_DEAD) - return; - - for (p = &(prt->suspended); *p != NULL; p = &((*p)->next)) - /* Empty loop body */; - - new_p = erts_proclist_create(process); - new_p->next = NULL; - *p = new_p; + int saved; + erts_aint32_t flags; + erts_port_task_sched_lock(&prt->sched); + flags = erts_smp_atomic32_read_nob(&prt->sched.flags); + saved = (flags & ERTS_PTS_FLGS_BUSY) && !(flags & ERTS_PTS_FLG_EXIT); + if (saved) + erts_proclist_store_last(&prt->suspended, erts_proclist_create(process)); + erts_port_task_sched_unlock(&prt->sched); + return saved; } /* @@ -515,47 +563,44 @@ erts_wake_process_later(Port *prt, Process *process) (*error_number_ptr must contain either BADARG or SYSTEM_LIMIT). The driver start function must obey the same conventions. */ -int +Port * erts_open_driver(erts_driver_t* driver, /* Pointer to driver. */ Eterm pid, /* Current process. */ char* name, /* Driver name. */ SysDriverOpts* opts, /* Options. */ - int *error_number_ptr) /* errno in case -2 is returned */ + int *error_type_ptr, /* error type */ + int *error_number_ptr) /* errno in case of error type -2 */ { - int port_num; - int port_ix; + +#undef ERTS_OPEN_DRIVER_RET +#define ERTS_OPEN_DRIVER_RET(Prt, EType, ENo) \ + do { \ + if (error_type_ptr) \ + *error_type_ptr = (EType); \ + if (error_number_ptr) \ + *error_number_ptr = (ENo); \ + return (Prt); \ + } while (0) + ErlDrvData drv_data = 0; - Uint32 xstatus = 0; Port *port; int fpe_was_unmasked; - - if (error_number_ptr) - *error_number_ptr = 0; + int error_type, error_number; + int port_errno = 0; + erts_mtx_t *driver_lock = NULL; + int cprt_flgs = 0; ERTS_SMP_CHK_NO_PROC_LOCKS; - if ((port_num = get_free_port()) < 0) { - if (error_number_ptr) { - *error_number_ptr = SYSTEM_LIMIT; - } - return -3; - } - - port_ix = port_num & erts_port_tab_index_mask; - port = &erts_port[port_ix]; - port->id = make_internal_port(port_num); - - erts_smp_mtx_lock(&erts_driver_list_lock); + erts_smp_rwmtx_rlock(&erts_driver_list_lock); if (!driver) { for (driver = driver_list; driver; driver = driver->next) { if (sys_strcmp(driver->name, name) == 0) break; } if (!driver) { - erts_smp_mtx_unlock(&erts_driver_list_lock); - if (error_number_ptr) - *error_number_ptr = BADARG; - return -3; + erts_smp_rwmtx_runlock(&erts_driver_list_lock); + ERTS_OPEN_DRIVER_RET(NULL, -3, BADARG); } } if (driver == &spawn_driver) { @@ -599,61 +644,52 @@ erts_open_driver(erts_driver_t* driver, /* Pointer to driver. */ } if (driver == NULL || (driver != &spawn_driver && opts->exit_status)) { - erts_smp_mtx_unlock(&erts_driver_list_lock); - if (error_number_ptr) { - *error_number_ptr = BADARG; - } - /* Need to mark the port as free again */ - erts_smp_port_state_lock(port); - port->status = ERTS_PORT_SFLG_FREE; -#ifdef ERTS_SMP - ERTS_SMP_LC_ASSERT(erts_smp_atomic_read_nob(&port->refc) == 2); - erts_smp_atomic_set_nob(&port->refc, 0); -#endif - erts_smp_port_state_unlock(port); - return -3; + erts_smp_rwmtx_runlock(&erts_driver_list_lock); + ERTS_OPEN_DRIVER_RET(NULL, -3, BADARG); } - /* - * We'll set up the port before calling the start function, - * to allow message sending and setting timers in the start function. - */ - #ifdef ERTS_SMP - ASSERT(!port->lock); - port->lock = driver->lock; - if (!port->lock) { - port->lock = erts_alloc(ERTS_ALC_T_PORT_LOCK, - sizeof(erts_smp_mtx_t)); - erts_smp_mtx_init_x(port->lock, -#ifdef ERTS_ENABLE_LOCK_COUNT - (erts_lcnt_rt_options & ERTS_LCNT_OPT_PORTLOCK) ? "port_lock" : NULL, -#else - "port_lock", -#endif - port->id); - xstatus |= ERTS_PORT_SFLG_PORT_SPECIFIC_LOCK; - } + driver_lock = driver->lock; #endif if (driver->handle != NULL) { erts_ddll_increment_port_count(driver->handle); erts_ddll_reference_driver(driver->handle); } - erts_smp_mtx_unlock(&erts_driver_list_lock); + erts_smp_rwmtx_runlock(&erts_driver_list_lock); -#ifdef ERTS_SMP - erts_smp_mtx_lock(port->lock); -#endif + /* + * We'll set up the port before calling the start function, + * to allow message sending and setting timers in the start function. + */ - setup_port(port, pid, driver, drv_data, name, xstatus); + if (opts->parallelism) + cprt_flgs |= ERTS_CREATE_PORT_FLAG_PARALLELISM; + + port = create_port(name, driver, driver_lock, cprt_flgs, pid, &port_errno); + if (!port) { + if (driver->handle) { + erts_smp_rwmtx_rlock(&erts_driver_list_lock); + erts_ddll_decrement_port_count(driver->handle); + erts_smp_rwmtx_runlock(&erts_driver_list_lock); + erts_ddll_dereference_driver(driver->handle); + } + if (port_errno) + ERTS_OPEN_DRIVER_RET(NULL, -2, port_errno); + else + ERTS_OPEN_DRIVER_RET(NULL, -3, SYSTEM_LIMIT); + } if (IS_TRACED_FL(port, F_TRACE_PORTS)) { trace_port_open(port, - pid, - am_atom_put(port->name, strlen(port->name))); + pid, + erts_atom_put((byte *) port->name, + strlen(port->name), + ERTS_ATOM_ENC_LATIN1, + 1)); } - + + error_number = error_type = 0; if (driver->start) { if (IS_TRACED_FL(port, F_TRACE_SCHED_PORTS)) { trace_sched_ports_where(port, am_in, am_start); @@ -666,56 +702,63 @@ erts_open_driver(erts_driver_t* driver, /* Pointer to driver. */ } #endif fpe_was_unmasked = erts_block_fpe(); - drv_data = (*driver->start)((ErlDrvPort)(port_ix), - name, opts); + drv_data = (*driver->start)(ERTS_Port2ErlDrvPort(port), name, opts); + if (((SWord) drv_data) == -1) + error_type = -1; + else if (((SWord) drv_data) == -2) { + /* + * We need to save errno quickly after the + * call to the 'start' callback before + * something else modify it. + */ + error_type = -2; + error_number = errno; + } + else if (((SWord) drv_data) == -3) { + error_type = -3; + error_number = BADARG; + } + erts_unblock_fpe(fpe_was_unmasked); port->caller = NIL; if (IS_TRACED_FL(port, F_TRACE_SCHED_PORTS)) { trace_sched_ports_where(port, am_out, am_start); } - if (error_number_ptr && ((SWord) drv_data) == (SWord) -2) - *error_number_ptr = errno; #ifdef ERTS_SMP if (port->xports) - erts_smp_xports_unlock(port); + erts_port_handle_xports(port); ASSERT(!port->xports); #endif } - if (((SWord)drv_data) == -1 || - ((SWord)drv_data) == -2 || - ((SWord)drv_data) == -3) { - int res = (int) ((SWord) drv_data); - - if (res == -3 && error_number_ptr) { - *error_number_ptr = BADARG; - } - + if (error_type) { /* * Must clean up the port. */ #ifdef ERTS_SMP - erts_cancel_smp_ptimer(port->ptimer); + erts_cancel_smp_ptimer(port->common.u.alive.ptimer); #else - erts_cancel_timer(&(port->tm)); + erts_cancel_timer(&(port->common.u.alive.tm)); #endif stopq(port); - kill_port(port); if (port->linebuf != NULL) { erts_free(ERTS_ALC_T_LINEBUF, (void *) port->linebuf); port->linebuf = NULL; } if (driver->handle != NULL) { - erts_smp_mtx_lock(&erts_driver_list_lock); + erts_smp_rwmtx_rlock(&erts_driver_list_lock); erts_ddll_decrement_port_count(driver->handle); - erts_smp_mtx_unlock(&erts_driver_list_lock); + erts_smp_rwmtx_runlock(&erts_driver_list_lock); } + kill_port(port); erts_port_release(port); - return res; + ERTS_OPEN_DRIVER_RET(NULL, error_type, error_number); } - port->drv_data = (SWord) drv_data; - return port_ix; + port->drv_data = (UWord) drv_data; + ERTS_OPEN_DRIVER_RET(port, 0, 0); + +#undef ERTS_OPEN_DRIVER_RET } #ifdef ERTS_SMP @@ -740,102 +783,122 @@ driver_create_port(ErlDrvPort creator_port_ix, /* Creating port */ char* name, /* Driver name */ ErlDrvData drv_data) /* Driver data */ { + int cprt_flgs = 0; Port *creator_port; Port* port; erts_driver_t *driver; Process *rp; - int port_num; - Eterm port_id; - Uint32 xstatus = 0; + erts_mtx_t *driver_lock = NULL; ERTS_SMP_CHK_NO_PROC_LOCKS; + /* Need to be called from a scheduler thread */ + if (!erts_get_scheduler_id()) + return ERTS_INVALID_ERL_DRV_PORT; + creator_port = erts_drvport2port(creator_port_ix); - if (!creator_port) - return (ErlDrvTermData) -1; + if (creator_port == ERTS_INVALID_ERL_DRV_PORT) + return ERTS_INVALID_ERL_DRV_PORT; + + rp = erts_proc_lookup(pid); + if (!rp) + return ERTS_INVALID_ERL_DRV_PORT; ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(creator_port)); driver = creator_port->drv_ptr; - erts_smp_mtx_lock(&erts_driver_list_lock); + erts_smp_rwmtx_rlock(&erts_driver_list_lock); if (!erts_ddll_driver_ok(driver->handle)) { - erts_smp_mtx_unlock(&erts_driver_list_lock); - return (ErlDrvTermData) -1; + erts_smp_rwmtx_runlock(&erts_driver_list_lock); + return ERTS_INVALID_ERL_DRV_PORT; } - rp = erts_pid2proc(NULL, 0, pid, ERTS_PROC_LOCK_LINK); - if (!rp) { - erts_smp_mtx_unlock(&erts_driver_list_lock); - return (ErlDrvTermData) -1; /* pid does not exist */ + if (driver->handle != NULL) { + erts_ddll_increment_port_count(driver->handle); + erts_ddll_reference_referenced_driver(driver->handle); } - if ((port_num = get_free_port()) < 0) { - errno = SYSTEM_LIMIT; + +#ifdef ERTS_SMP + driver_lock = driver->lock; +#endif + + erts_smp_rwmtx_runlock(&erts_driver_list_lock); + + /* Inherit parallelism flag from parent */ + if (ERTS_PTS_FLG_PARALLELISM & + erts_smp_atomic32_read_nob(&creator_port->sched.flags)) + cprt_flgs |= ERTS_CREATE_PORT_FLAG_PARALLELISM; + port = create_port(name, driver, driver_lock, cprt_flgs, pid, NULL); + if (!port) { + if (driver->handle) { + erts_smp_rwmtx_rlock(&erts_driver_list_lock); + erts_ddll_decrement_port_count(driver->handle); + erts_smp_rwmtx_runlock(&erts_driver_list_lock); + erts_ddll_dereference_driver(driver->handle); + } + return ERTS_INVALID_ERL_DRV_PORT; + } + ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(port)); + + erts_smp_proc_lock(rp, ERTS_PROC_LOCK_LINK); + if (ERTS_PROC_IS_EXITING(rp)) { erts_smp_proc_unlock(rp, ERTS_PROC_LOCK_LINK); - erts_smp_mtx_unlock(&erts_driver_list_lock); - return (ErlDrvTermData) -1; + if (driver->handle) { + erts_smp_rwmtx_rlock(&erts_driver_list_lock); + erts_ddll_decrement_port_count(driver->handle); + erts_smp_rwmtx_runlock(&erts_driver_list_lock); + } + kill_port(port); + erts_port_release(port); + return ERTS_INVALID_ERL_DRV_PORT; } - port_id = make_internal_port(port_num); - port = &erts_port[port_num & erts_port_tab_index_mask]; + erts_add_link(&ERTS_P_LINKS(port), LINK_PID, pid); + erts_add_link(&ERTS_P_LINKS(rp), LINK_PID, port->common.id); + erts_smp_proc_unlock(rp, ERTS_PROC_LOCK_LINK); #ifdef ERTS_SMP - ASSERT(!port->lock); - port->lock = driver->lock; - if (!port->lock) { + if (!driver_lock) { ErtsXPortsList *xplp = xports_list_alloc(); xplp->port = port; xplp->next = creator_port->xports; creator_port->xports = xplp; - port->lock = erts_alloc(ERTS_ALC_T_PORT_LOCK, - sizeof(erts_smp_mtx_t)); - erts_smp_mtx_init_locked_x(port->lock, -#ifdef ERTS_ENABLE_LOCK_COUNT - (erts_lcnt_rt_options & ERTS_LCNT_OPT_PORTLOCK) ? "port_lock" : NULL, -#else - "port_lock", -#endif - port_id); - xstatus |= ERTS_PORT_SFLG_PORT_SPECIFIC_LOCK; } - #endif - if (driver->handle != NULL) { - erts_ddll_increment_port_count(driver->handle); - erts_ddll_reference_referenced_driver(driver->handle); - } - erts_smp_mtx_unlock(&erts_driver_list_lock); - - ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(port)); + port->drv_data = (UWord) drv_data; - setup_port(port, pid, driver, drv_data, name, xstatus); - port->id = port_id; - - erts_add_link(&(port->nlinks), LINK_PID, pid); - erts_add_link(&(rp->nlinks), LINK_PID, port_id); - erts_smp_proc_unlock(rp, ERTS_PROC_LOCK_LINK); - return port_num & erts_port_tab_index_mask; + return ERTS_Port2ErlDrvPort(port); } #ifdef ERTS_SMP -void -erts_smp_xports_unlock(Port *prt) +int erts_port_handle_xports(Port *prt) { + int reds = 0; ErtsXPortsList *xplp; ASSERT(prt); xplp = prt->xports; ASSERT(xplp); while (xplp) { + Port *rprt = xplp->port; ErtsXPortsList *free_xplp; - if (xplp->port->xports) - erts_smp_xports_unlock(xplp->port); - erts_port_release(xplp->port); + erts_aint32_t state; + if (rprt->xports) + reds += erts_port_handle_xports(rprt); + state = erts_atomic32_read_nob(&rprt->state); + if ((state & ERTS_PORT_SFLG_CLOSING) && erts_is_port_ioq_empty(rprt)) { + terminate_port(rprt); + reds += ERTS_PORT_REDS_TERMINATE; + } + erts_port_release(rprt); free_xplp = xplp; xplp = xplp->next; xports_list_free(free_xplp); + reds++; } prt->xports = NULL; + return reds; } #endif @@ -851,8 +914,8 @@ erts_smp_xports_unlock(Port *prt) (iov)->iov_base = (ptr); \ (iov)->iov_len = (len); \ if (sizeof((iov)->iov_len) < sizeof(len) \ - /* Check if (len) overflowed (iov)->iov_len */ \ - && ((len) >> (sizeof((iov)->iov_len)*CHAR_BIT)) != 0) { \ + /* Check if (len) overflowed (iov)->iov_len */ \ + && (iov)->iov_len != (len)) { \ goto L_overflow; \ } \ *(bv)++ = (bin); \ @@ -870,8 +933,8 @@ io_list_to_vec(Eterm obj, /* io-list */ DECLARE_ESTACK(s); Eterm* objp; char *buf = cbin->orig_bytes; - ErlDrvSizeT len = cbin->orig_size; - ErlDrvSizeT csize = 0; + Uint len = cbin->orig_size; + Uint csize = 0; int vlen = 0; char* cptr = buf; @@ -986,7 +1049,7 @@ io_list_to_vec(Eterm obj, /* io-list */ #define IO_LIST_VEC_COUNT(obj) \ do { \ - ErlDrvSizeT _size = binary_size(obj); \ + Uint _size = binary_size(obj); \ Eterm _real; \ ERTS_DECLARE_DUMMY(Uint _offset); \ int _bitoffs; \ @@ -1037,8 +1100,9 @@ do { \ */ static int -io_list_vec_len(Eterm obj, Uint* vsize, Uint* csize, - Uint* pvsize, Uint* pcsize, Uint* total_size) +io_list_vec_len(Eterm obj, int* vsize, Uint* csize, + Uint* pvsize, Uint* pcsize, + ErlDrvSizeT* total_size) { DECLARE_ESTACK(s); Eterm* objp; @@ -1049,7 +1113,7 @@ io_list_vec_len(Eterm obj, Uint* vsize, Uint* csize, Uint p_v_size = 0; Uint p_c_size = 0; Uint p_in_clist = 0; - Uint total; + Uint total; /* Uint due to halfword emulator */ goto L_jump_start; /* avoid a push */ @@ -1109,7 +1173,7 @@ io_list_vec_len(Eterm obj, Uint* vsize, Uint* csize, if (total < c_size) { goto L_overflow_error; } - *total_size = total; + *total_size = (ErlDrvSizeT) total; DESTROY_ESTACK(s); *vsize = v_size; @@ -1124,56 +1188,755 @@ io_list_vec_len(Eterm obj, Uint* vsize, Uint* csize, return 1; } -/* write data to a port */ -int erts_write_to_port(Eterm caller_id, Port *p, Eterm list) -{ - char *buf; - erts_driver_t *drv = p->drv_ptr; - Uint size; +typedef enum { + ERTS_TRY_IMM_DRV_CALL_OK, + ERTS_TRY_IMM_DRV_CALL_BUSY_LOCK, + ERTS_TRY_IMM_DRV_CALL_INVALID_PORT, + ERTS_TRY_IMM_DRV_CALL_INVALID_SCHED_FLAGS +} ErtsTryImmDrvCallResult; + +typedef struct { + Process *c_p; /* Currently executing process (unlocked) */ + Port *port; /* Port to operate on */ + Eterm port_op; /* port operation as an atom */ + erts_aint32_t state; /* in: invalid state; out: read state (if read) */ + erts_aint32_t sched_flags; /* in: invalid flags; out: read flags (if read) */ + int async; /* Asynchronous operation */ + int pre_chk_sched_flags; /* Check sched flags before lock? */ int fpe_was_unmasked; - - ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(p) || ERTS_IS_CRASH_DUMPING); + int reds_left_in; +} ErtsTryImmDrvCallState; + +#define ERTS_INIT_TRY_IMM_DRV_CALL_STATE(C_P, PRT, SFLGS, PTS_FLGS, A, PRT_OP) \ + {(C_P), (PRT), (PRT_OP), (SFLGS), (PTS_FLGS), (A), 1, 0} + +/* + * Try doing an immediate driver callback call from a process. If + * this fail, the operation should be scheduled in the normal case... + * + */ +static ERTS_INLINE ErtsTryImmDrvCallResult +try_imm_drv_call(ErtsTryImmDrvCallState *sp) +{ + ErtsTryImmDrvCallResult res; + int reds_left_in; + erts_aint32_t invalid_state, invalid_sched_flags; + Port *prt = sp->port; + Process *c_p = sp->c_p; + + ASSERT(is_atom(sp->port_op)); + + invalid_sched_flags = ERTS_PTS_FLGS_FORCE_SCHEDULE_OP; + invalid_sched_flags |= sp->sched_flags; + if (sp->async) + invalid_sched_flags |= ERTS_PTS_FLG_PARALLELISM; + + if (sp->pre_chk_sched_flags) { + sp->sched_flags = erts_smp_atomic32_read_nob(&prt->sched.flags); + if (sp->sched_flags & invalid_sched_flags) + return ERTS_TRY_IMM_DRV_CALL_INVALID_SCHED_FLAGS; + } + + if (erts_smp_port_trylock(prt) == EBUSY) + return ERTS_TRY_IMM_DRV_CALL_BUSY_LOCK; + + invalid_state = sp->state; + sp->state = erts_atomic32_read_nob(&prt->state); + if (sp->state & invalid_state) { + res = ERTS_TRY_IMM_DRV_CALL_INVALID_PORT; + goto locked_fail; + } + + sp->sched_flags = erts_smp_atomic32_read_nob(&prt->sched.flags); + if (sp->sched_flags & invalid_sched_flags) { + res = ERTS_TRY_IMM_DRV_CALL_INVALID_SCHED_FLAGS; + goto locked_fail; + } + + + if (!c_p) + reds_left_in = CONTEXT_REDS/10; + else { + if (IS_TRACED_FL(c_p, F_TRACE_SCHED_PROCS)) + trace_virtual_sched(c_p, am_out); + if (erts_system_profile_flags.runnable_procs + && erts_system_profile_flags.exclusive) + profile_runnable_proc(c_p, am_inactive); + + reds_left_in = ERTS_BIF_REDS_LEFT(c_p); + erts_smp_proc_unlock(c_p, ERTS_PROC_LOCK_MAIN); + } + + ASSERT(0 <= reds_left_in && reds_left_in <= CONTEXT_REDS); + sp->reds_left_in = reds_left_in; + prt->reds = CONTEXT_REDS - reds_left_in; + ERTS_SMP_CHK_NO_PROC_LOCKS; - p->caller = caller_id; - if (drv->outputv != NULL) { - Uint vsize; - Uint csize; - Uint pvsize; - Uint pcsize; - ErlDrvSizeT blimit; + if (IS_TRACED_FL(prt, F_TRACE_SCHED_PORTS)) + trace_sched_ports_where(prt, am_in, sp->port_op); + if (erts_system_profile_flags.runnable_ports + && !erts_port_is_scheduled(prt)) + profile_runnable_port(prt, am_active); + + sp->fpe_was_unmasked = erts_block_fpe(); + + return ERTS_TRY_IMM_DRV_CALL_OK; + +locked_fail: + erts_port_release(prt); + return res; +} + +static ERTS_INLINE void +finalize_imm_drv_call(ErtsTryImmDrvCallState *sp) +{ + int reds; + Port *prt = sp->port; + Process *c_p = sp->c_p; + + reds = prt->reds; + reds += erts_port_driver_callback_epilogue(prt, NULL); + + erts_unblock_fpe(sp->fpe_was_unmasked); + + if (IS_TRACED_FL(prt, F_TRACE_SCHED_PORTS)) + trace_sched_ports_where(prt, am_out, sp->port_op); + if (erts_system_profile_flags.runnable_ports + && !erts_port_is_scheduled(prt)) + profile_runnable_port(prt, am_inactive); + + erts_port_release(prt); + + if (c_p) { + erts_smp_proc_lock(c_p, ERTS_PROC_LOCK_MAIN); + + if (reds != (CONTEXT_REDS - sp->reds_left_in)) { + int bump_reds = reds - (CONTEXT_REDS - sp->reds_left_in); + ASSERT(bump_reds > 0); + BUMP_REDS(c_p, bump_reds); + } + + if (IS_TRACED_FL(c_p, F_TRACE_SCHED_PROCS)) + trace_virtual_sched(c_p, am_in); + if (erts_system_profile_flags.runnable_procs + && erts_system_profile_flags.exclusive) + profile_runnable_proc(c_p, am_active); + } +} + +/* + * force_imm_drv_call()/finalize_force_imm_drv_call() should *only* + * be used while crash dumping... + */ +static ErtsTryImmDrvCallResult +force_imm_drv_call(ErtsTryImmDrvCallState *sp) +{ + erts_aint32_t invalid_state; + Port *prt = sp->port; + + ASSERT(ERTS_IS_CRASH_DUMPING); + ASSERT(is_atom(sp->port_op)); + + invalid_state = sp->state; + sp->state = erts_atomic32_read_nob(&prt->state); + if (sp->state & invalid_state) + return ERTS_TRY_IMM_DRV_CALL_INVALID_PORT; + + sp->fpe_was_unmasked = erts_block_fpe(); + + return ERTS_TRY_IMM_DRV_CALL_OK; +} + +static void +finalize_force_imm_drv_call(ErtsTryImmDrvCallState *sp) +{ + erts_unblock_fpe(sp->fpe_was_unmasked); +} + +#define ERTS_QUEUE_PORT_SCHED_OP_REPLY_SIZE (REF_THING_SIZE + 3) + +static ERTS_INLINE void +queue_port_sched_op_reply(Process *rp, + ErtsProcLocks *rp_locksp, + Eterm *hp_start, + Eterm *hp, + Uint h_size, + ErlHeapFragment* bp, + Uint32 *ref_num, + Eterm msg) +{ + Eterm ref = make_internal_ref(hp); + write_ref_thing(hp, ref_num[0], ref_num[1], ref_num[2]); + hp += REF_THING_SIZE; + + msg = TUPLE2(hp, ref, msg); + hp += 3; + + if (!bp) { + HRelease(rp, hp_start + h_size, hp); + } + else { + Uint used_h_size = hp - hp_start; + ASSERT(h_size >= used_h_size); + if (h_size > used_h_size) + bp = erts_resize_message_buffer(bp, used_h_size, &msg, 1); + } + + erts_queue_message(rp, + rp_locksp, + bp, + msg, + NIL +#ifdef USE_VM_PROBES + , NIL +#endif + ); +} + +static void +port_sched_op_reply(Eterm to, Uint32 *ref_num, Eterm msg) +{ + Process *rp = erts_proc_lookup_raw(to); + if (rp) { + ErlOffHeap *ohp; + ErlHeapFragment* bp; + Eterm msg_copy; + Uint hsz, msg_sz; + Eterm *hp, *hp_start; + ErtsProcLocks rp_locks = 0; + + hsz = ERTS_QUEUE_PORT_SCHED_OP_REPLY_SIZE; + if (is_immed(msg)) + msg_sz = 0; + else { + msg_sz = size_object(msg); + hsz += msg_sz; + } + + hp_start = hp = erts_alloc_message_heap(hsz, + &bp, + &ohp, + rp, + &rp_locks); + if (is_immed(msg)) + msg_copy = msg; + else + msg_copy = copy_struct(msg, msg_sz, &hp, ohp); + + queue_port_sched_op_reply(rp, + &rp_locks, + hp_start, + hp, + hsz, + bp, + ref_num, + msg_copy); + + if (rp_locks) + erts_smp_proc_unlock(rp, rp_locks); + } +} + + +ErtsPortOpResult +erts_schedule_proc2port_signal(Process *c_p, + Port *prt, + Eterm caller, + Eterm *refp, + ErtsProc2PortSigData *sigdp, + int task_flags, + ErtsPortTaskHandle *pthp, + ErtsProc2PortSigCallback callback) +{ + int sched_res; + if (!refp) { + if (c_p) + erts_smp_proc_unlock(c_p, ERTS_PROC_LOCK_MAIN); + } + else { + ASSERT(c_p); + sigdp->flags |= ERTS_P2P_SIG_DATA_FLG_REPLY; + erts_make_ref_in_array(sigdp->ref); + *refp = erts_proc_store_ref(c_p, sigdp->ref); + + /* + * Caller needs to wait for a message containing + * the ref that we just created. No such message + * can exist in callers message queue at this time. + * We therefore move the save pointer of the + * callers message queue to the end of the queue. + * + * NOTE: It is of vital importance that the caller + * immediately do a receive unconditionaly + * waiting for the message with the reference; + * otherwise, next receive will *not* work + * as expected! + */ + erts_smp_proc_lock(c_p, ERTS_PROC_LOCKS_MSG_RECEIVE); + + if (ERTS_PROC_PENDING_EXIT(c_p)) { + /* need to exit caller instead */ + erts_smp_proc_unlock(c_p, ERTS_PROC_LOCKS_MSG_RECEIVE); + KILL_CATCHES(c_p); + c_p->freason = EXC_EXIT; + return ERTS_PORT_OP_CALLER_EXIT; + } + + ERTS_SMP_MSGQ_MV_INQ2PRIVQ(c_p); + c_p->msg.save = c_p->msg.last; + + erts_smp_proc_unlock(c_p, + (ERTS_PROC_LOCK_MAIN + | ERTS_PROC_LOCKS_MSG_RECEIVE)); + } + + + sigdp->caller = caller; + + /* Schedule port close call for later execution... */ + sched_res = erts_port_task_schedule(prt->common.id, + pthp, + ERTS_PORT_TASK_PROC_SIG, + sigdp, + callback, + task_flags); + + if (c_p) + erts_smp_proc_lock(c_p, ERTS_PROC_LOCK_MAIN); + + if (sched_res != 0) { + if (refp) + *refp = NIL; + return ERTS_PORT_OP_DROPPED; + } + return ERTS_PORT_OP_SCHEDULED; +} + +static ERTS_INLINE void +send_badsig(Port *prt) +{ + ErtsProcLocks rp_locks = ERTS_PROC_LOCKS_XSIG_SEND; + Process* rp; + Eterm connected = ERTS_PORT_GET_CONNECTED(prt); + + ERTS_SMP_CHK_NO_PROC_LOCKS; + ERTS_LC_ASSERT(erts_get_scheduler_id()); + + ASSERT(is_internal_pid(connected)); + + rp = erts_proc_lookup_raw(connected); + if (rp) { + erts_smp_proc_lock(rp, rp_locks); + if (!ERTS_PROC_IS_EXITING(rp)) + (void) erts_send_exit_signal(NULL, + prt->common.id, + rp, + &rp_locks, + am_badsig, + NIL, + NULL, + 0); + if (rp_locks) + erts_smp_proc_unlock(rp, rp_locks); + } +} + +static void +badsig_received(int bang_op, + Port *prt, + erts_aint32_t state, + int bad_output_value) +{ + /* + * if (bang_op) + * we are part of a "Prt ! Something" operation + * else + * we are part of a call to a port BIF + * behave accordingly... + */ + if (!(state & ERTS_PORT_SFLGS_INVALID_LOOKUP)) { + if (bad_output_value) { + erts_dsprintf_buf_t *dsbufp = erts_create_logger_dsbuf(); + erts_dsprintf(dsbufp, "Bad value on output port '%s'\n", prt->name); + erts_send_error_to_logger_nogl(dsbufp); + } + if (bang_op) + send_badsig(prt); + } +} + +static int +port_badsig(Port *prt, erts_aint32_t state, int op, ErtsProc2PortSigData *sigdp) +{ + if (op == ERTS_PROC2PORT_SIG_EXEC) + badsig_received(sigdp->flags & ERTS_P2P_SIG_DATA_FLG_BANG_OP, + prt, + state, + sigdp->flags & ERTS_P2P_SIG_DATA_FLG_BAD_OUTPUT); + if (sigdp->flags & ERTS_P2P_SIG_DATA_FLG_REPLY) + port_sched_op_reply(sigdp->caller, sigdp->ref, am_badarg); + return ERTS_PORT_REDS_BADSIG; +} + + +/* + * bad_port_signal() will + * - preserve signal order of signals. + * - send a 'badsig' exit signal to connected process if 'from' is an + * internal pid and the port is alive when the bad signal reaches + * it. + */ +static ErtsPortOpResult +bad_port_signal(Process *c_p, + int flags, + Port *prt, + Eterm from, + Eterm *refp, + Eterm port_op) +{ + ErtsProc2PortSigData *sigdp; + ErtsTryImmDrvCallResult try_call_res; + ErtsTryImmDrvCallState try_call_state + = ERTS_INIT_TRY_IMM_DRV_CALL_STATE( + c_p, + prt, + ERTS_PORT_SFLGS_INVALID_LOOKUP, + 0, + !refp, + port_op); + + try_call_res = try_imm_drv_call(&try_call_state); + switch (try_call_res) { + case ERTS_TRY_IMM_DRV_CALL_OK: + badsig_received(flags & ERTS_PORT_SIG_FLG_BANG_OP, + prt, + try_call_state.state, + flags & ERTS_PORT_SIG_FLG_BAD_OUTPUT); + finalize_imm_drv_call(&try_call_state); + if (c_p) + BUMP_REDS(c_p, ERTS_PORT_REDS_BADSIG); + return ERTS_PORT_OP_BADARG; + case ERTS_TRY_IMM_DRV_CALL_INVALID_PORT: + return ERTS_PORT_OP_DROPPED; + case ERTS_TRY_IMM_DRV_CALL_INVALID_SCHED_FLAGS: + case ERTS_TRY_IMM_DRV_CALL_BUSY_LOCK: + /* Schedule badsig() call instead... */ + break; + } + + sigdp = erts_port_task_alloc_p2p_sig_data(); + sigdp->flags = (flags & ~ERTS_P2P_SIG_TYPE_MASK) | ERTS_P2P_SIG_TYPE_BAD; + + return erts_schedule_proc2port_signal(c_p, + prt, + c_p->common.id, + refp, + sigdp, + 0, + NULL, + port_badsig); +} + + +/* + * Driver outputv() callback + */ + +static ERTS_INLINE void +call_driver_outputv(int bang_op, + Eterm caller, + Eterm from, + Port *prt, + erts_driver_t *drv, + ErlIOVec *evp) +{ + /* + * if (bang_op) + * we are part of a "Prt ! {From, {command, Data}}" operation + * else + * we are part of a call to port_command/[2,3] + * behave accordingly... + */ + if (bang_op && from != ERTS_PORT_GET_CONNECTED(prt)) + send_badsig(prt); + else { + ErlDrvSizeT size = evp->size; + + ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt) + || ERTS_IS_CRASH_DUMPING); + +#ifdef USE_VM_PROBES + if (DTRACE_ENABLED(driver_outputv)) { + DTRACE_FORMAT_COMMON_PID_AND_PORT(caller, prt); + DTRACE4(driver_outputv, process_str, port_str, prt->name, size); + } +#endif + + prt->caller = caller; + (*drv->outputv)((ErlDrvData) prt->drv_data, evp); + prt->caller = NIL; + + prt->bytes_out += size; + erts_smp_atomic_add_nob(&erts_bytes_out, size); + } +} + +static ERTS_INLINE void +cleanup_scheduled_outputv(ErlIOVec *ev, ErlDrvBinary *cbinp) +{ + int i; + /* Need to free all binaries */ + for (i = 1; i < ev->vsize; i++) + if (ev->binv[i]) + driver_free_binary(ev->binv[i]); + if (cbinp) + driver_free_binary(cbinp); + erts_free(ERTS_ALC_T_DRV_CMD_DATA, ev); +} + +static int +port_sig_outputv(Port *prt, erts_aint32_t state, int op, ErtsProc2PortSigData *sigdp) +{ + Eterm reply; + + switch (op) { + case ERTS_PROC2PORT_SIG_EXEC: + /* Execution of a scheduled outputv() call */ + + ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt)); + + if (state & ERTS_PORT_SFLGS_INVALID_LOOKUP) + reply = am_badarg; + else { + call_driver_outputv(sigdp->flags & ERTS_P2P_SIG_DATA_FLG_BANG_OP, + sigdp->caller, + sigdp->u.outputv.from, + prt, + prt->drv_ptr, + sigdp->u.outputv.evp); + reply = am_true; + } + break; + case ERTS_PROC2PORT_SIG_ABORT_NOSUSPEND: + reply = am_false; + break; + default: + reply = am_badarg; + break; + } + + if (sigdp->flags & ERTS_P2P_SIG_DATA_FLG_REPLY) + port_sched_op_reply(sigdp->caller, sigdp->ref, reply); + + cleanup_scheduled_outputv(sigdp->u.outputv.evp, + sigdp->u.outputv.cbinp); + + return ERTS_PORT_REDS_CMD_OUTPUTV; +} + +/* + * Driver output() callback + */ + +static ERTS_INLINE void +call_driver_output(int bang_op, + Eterm caller, + Eterm from, + Port *prt, + erts_driver_t *drv, + char *bufp, + ErlDrvSizeT size) +{ + /* + * if (bang_op) + * we are part of a "Prt ! {From, {command, Data}}" operation + * else + * we are part of a call to port_command/[2,3] + * behave accordingly... + */ + if (bang_op && from != ERTS_PORT_GET_CONNECTED(prt)) + send_badsig(prt); + else { + + ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt) + || ERTS_IS_CRASH_DUMPING); + +#ifdef USE_VM_PROBES + if (DTRACE_ENABLED(driver_output)) { + DTRACE_FORMAT_COMMON_PID_AND_PORT(caller, prt); + DTRACE4(driver_output, process_str, port_str, prt->name, size); + } +#endif + + prt->caller = caller; + (*drv->output)((ErlDrvData) prt->drv_data, bufp, size); + prt->caller = NIL; + + prt->bytes_out += size; + erts_smp_atomic_add_nob(&erts_bytes_out, size); + } +} + +static ERTS_INLINE void +cleanup_scheduled_output(char *bufp) +{ + erts_free(ERTS_ALC_T_DRV_CMD_DATA, bufp); +} + +static int +port_sig_output(Port *prt, erts_aint32_t state, int op, ErtsProc2PortSigData *sigdp) +{ + Eterm reply; + + switch (op) { + case ERTS_PROC2PORT_SIG_EXEC: + /* Execution of a scheduled output() call */ + + ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt)); + + if (state & ERTS_PORT_SFLGS_INVALID_LOOKUP) + reply = am_badarg; + else { + call_driver_output(sigdp->flags & ERTS_P2P_SIG_DATA_FLG_BANG_OP, + sigdp->caller, + sigdp->u.output.from, + prt, + prt->drv_ptr, + sigdp->u.output.bufp, + sigdp->u.output.size); + reply = am_true; + } + break; + case ERTS_PROC2PORT_SIG_ABORT_NOSUSPEND: + reply = am_false; + break; + default: + reply = am_badarg; + break; + } + + if (sigdp->flags & ERTS_P2P_SIG_DATA_FLG_REPLY) + port_sched_op_reply(sigdp->caller, sigdp->ref, reply); + + cleanup_scheduled_output(sigdp->u.output.bufp); + + return ERTS_PORT_REDS_CMD_OUTPUT; +} + +ErtsPortOpResult +erts_port_output(Process *c_p, + int flags, + Port *prt, + Eterm from, + Eterm list, + Eterm *refp) +{ + ErtsPortOpResult res; + ErtsProc2PortSigData *sigdp; + erts_driver_t *drv = prt->drv_ptr; + size_t size; + int try_call; + erts_aint32_t sched_flags, busy_flgs, invalid_flags; + int task_flags; + ErtsProc2PortSigCallback port_sig_callback; + ErlDrvBinary *cbin = NULL; + ErlIOVec *evp = NULL; + char *buf = NULL; + int force_immediate_call = (flags & ERTS_PORT_SIG_FLG_FORCE_IMM_CALL); + int async_nosuspend; + ErtsPortTaskHandle *ns_pthp; + + ASSERT((flags & ~(ERTS_PORT_SIG_FLG_BANG_OP + | ERTS_PORT_SIG_FLG_ASYNC + | ERTS_PORT_SIG_FLG_NOSUSPEND + | ERTS_PORT_SIG_FLG_FORCE + | ERTS_PORT_SIG_FLG_FORCE_IMM_CALL)) == 0); + + busy_flgs = ((flags & ERTS_PORT_SIG_FLG_FORCE) + ? ((erts_aint32_t) 0) + : ERTS_PTS_FLGS_BUSY); + invalid_flags = busy_flgs; + if (!refp) + invalid_flags |= ERTS_PTS_FLG_PARALLELISM; + + /* + * Assumes caller have checked that port is valid... + */ + + sched_flags = erts_smp_atomic32_read_nob(&prt->sched.flags); + if (sched_flags & (busy_flgs|ERTS_PTS_FLG_EXIT)) + return ((sched_flags & ERTS_PTS_FLG_EXIT) + ? ERTS_PORT_OP_DROPPED + : ERTS_PORT_OP_BUSY); + + async_nosuspend = ((flags & (ERTS_PORT_SIG_FLG_ASYNC + | ERTS_PORT_SIG_FLG_NOSUSPEND + | ERTS_PORT_SIG_FLG_FORCE)) + == (ERTS_PORT_SIG_FLG_ASYNC + | ERTS_PORT_SIG_FLG_NOSUSPEND)); + + try_call = (force_immediate_call /* crash dumping */ + || !(sched_flags & (invalid_flags + | ERTS_PTS_FLGS_FORCE_SCHEDULE_OP))); + +#ifdef USE_VM_PROBES + if(DTRACE_ENABLED(port_command)) { + DTRACE_FORMAT_COMMON_PID_AND_PORT(c_p ? c_p->common.id : ERTS_INVALID_PID, prt); + DTRACE4(port_command, process_str, port_str, prt->name, "command"); + } +#endif + + if (drv->outputv) { + ErlIOVec ev; SysIOVec iv[SMALL_WRITE_VEC]; ErlDrvBinary* bv[SMALL_WRITE_VEC]; SysIOVec* ivp; ErlDrvBinary** bvp; - ErlDrvBinary* cbin; - ErlIOVec ev; + int vsize; + Uint csize; + Uint pvsize; + Uint pcsize; + Uint blimit; + size_t iov_offset, binv_offset, alloc_size; - if (io_list_vec_len(list, &vsize, &csize, - &pvsize, &pcsize, &size)) { + if (io_list_vec_len(list, &vsize, &csize, &pvsize, &pcsize, &size)) goto bad_value; + + iov_offset = ERTS_ALC_DATA_ALIGN_SIZE(sizeof(ErlIOVec)); + binv_offset = iov_offset; + binv_offset += ERTS_ALC_DATA_ALIGN_SIZE((vsize+1)*sizeof(SysIOVec)); + alloc_size = binv_offset; + alloc_size += (vsize+1)*sizeof(ErlDrvBinary *); + + if (try_call && vsize < SMALL_WRITE_VEC) { + ivp = ev.iov = iv; + bvp = ev.binv = bv; + evp = &ev; } + else { + char *ptr = erts_alloc((try_call + ? ERTS_ALC_T_TMP + : ERTS_ALC_T_DRV_CMD_DATA), alloc_size); + + evp = (ErlIOVec *) ptr; + ivp = evp->iov = (SysIOVec *) (ptr + iov_offset); + bvp = evp->binv = (ErlDrvBinary **) (ptr + binv_offset); + } + /* To pack or not to pack (small binaries) ...? */ - vsize++; - if (vsize <= SMALL_WRITE_VEC) { + if (vsize < SMALL_WRITE_VEC) { /* Do NOT pack */ blimit = 0; - } else { + } + else { /* Do pack */ vsize = pvsize + 1; csize = pcsize; blimit = ERL_SMALL_IO_BIN_LIMIT; } /* Use vsize and csize from now on */ - if (vsize <= SMALL_WRITE_VEC) { - ivp = iv; - bvp = bv; - } else { - ivp = (SysIOVec *) erts_alloc(ERTS_ALC_T_TMP, - vsize * sizeof(SysIOVec)); - bvp = (ErlDrvBinary**) erts_alloc(ERTS_ALC_T_TMP, - vsize * sizeof(ErlDrvBinary*)); - } + cbin = driver_alloc_binary(csize); if (!cbin) erts_alloc_enomem(ERTS_ALC_T_DRV_BINARY, ERTS_SIZEOF_Binary(csize)); @@ -1182,240 +1945,901 @@ int erts_write_to_port(Eterm caller_id, Port *p, Eterm list) ivp[0].iov_base = NULL; ivp[0].iov_len = 0; bvp[0] = NULL; - ev.vsize = io_list_to_vec(list, ivp+1, bvp+1, cbin, blimit); - if (ev.vsize < 0) { - if (ivp != iv) { - erts_free(ERTS_ALC_T_TMP, (void *) ivp); - } - if (bvp != bv) { - erts_free(ERTS_ALC_T_TMP, (void *) bvp); - } + evp->vsize = io_list_to_vec(list, ivp+1, bvp+1, cbin, blimit); + if (evp->vsize < 0) { + if (evp != &ev) + erts_free(try_call ? ERTS_ALC_T_TMP : ERTS_ALC_T_DRV_CMD_DATA, + evp); driver_free_binary(cbin); goto bad_value; } - ev.vsize++; #if 0 /* This assertion may say something useful, but it can be falsified during the emulator test suites. */ - ASSERT(ev.vsize == vsize); -#endif - ev.size = size; /* total size */ - ev.iov = ivp; - ev.binv = bvp; -#ifdef USE_VM_PROBES - if (DTRACE_ENABLED(driver_outputv)) { - DTRACE_FORMAT_COMMON_PID_AND_PORT(caller_id, p) - DTRACE4(driver_outputv, process_str, port_str, p->name, size); - } + ASSERT(evp->vsize == vsize); #endif - fpe_was_unmasked = erts_block_fpe(); - (*drv->outputv)((ErlDrvData)p->drv_data, &ev); - erts_unblock_fpe(fpe_was_unmasked); - if (ivp != iv) { - erts_free(ERTS_ALC_T_TMP, (void *) ivp); + evp->vsize++; + evp->size = size; /* total size */ + + if (!try_call) { + int i; + /* Need to increase refc on all binaries */ + for (i = 1; i < evp->vsize; i++) + if (bvp[i]) + driver_binary_inc_refc(bvp[i]); } - if (bvp != bv) { - erts_free(ERTS_ALC_T_TMP, (void *) bvp); - } - driver_free_binary(cbin); - } else { - int r; - - /* Try with an 8KB buffer first (will often be enough I guess). */ - size = 8*1024; - /* See below why the extra byte is added. */ - buf = erts_alloc(ERTS_ALC_T_TMP, size+1); - r = io_list_to_buf(list, buf, size); + else { + int i; + ErlIOVec *new_evp; + ErtsTryImmDrvCallResult try_call_res; + ErtsTryImmDrvCallState try_call_state + = ERTS_INIT_TRY_IMM_DRV_CALL_STATE( + c_p, + prt, + ERTS_PORT_SFLGS_INVALID_LOOKUP, + invalid_flags, + !refp, + am_command); + + try_call_state.pre_chk_sched_flags = 0; /* already checked */ + if (force_immediate_call) + try_call_res = force_imm_drv_call(&try_call_state); + else + try_call_res = try_imm_drv_call(&try_call_state); + switch (try_call_res) { + case ERTS_TRY_IMM_DRV_CALL_OK: + call_driver_outputv(flags & ERTS_PORT_SIG_FLG_BANG_OP, + c_p ? c_p->common.id : ERTS_INVALID_PID, + from, + prt, + drv, + evp); + if (force_immediate_call) + finalize_force_imm_drv_call(&try_call_state); + else + finalize_imm_drv_call(&try_call_state); + /* Fall through... */ + case ERTS_TRY_IMM_DRV_CALL_INVALID_PORT: + driver_free_binary(cbin); + if (evp != &ev) + erts_free(ERTS_ALC_T_TMP, evp); + if (try_call_res != ERTS_TRY_IMM_DRV_CALL_OK) + return ERTS_PORT_OP_DROPPED; + if (c_p) + BUMP_REDS(c_p, ERTS_PORT_REDS_CMD_OUTPUTV); + return ERTS_PORT_OP_DONE; + case ERTS_TRY_IMM_DRV_CALL_INVALID_SCHED_FLAGS: + sched_flags = try_call_state.sched_flags; + if (async_nosuspend + && (sched_flags & (busy_flgs|ERTS_PTS_FLG_EXIT))) { + driver_free_binary(cbin); + if (evp != &ev) + erts_free(ERTS_ALC_T_TMP, evp); + return ((sched_flags & ERTS_PTS_FLG_EXIT) + ? ERTS_PORT_OP_DROPPED + : ERTS_PORT_OP_BUSY); + } + case ERTS_TRY_IMM_DRV_CALL_BUSY_LOCK: + /* Schedule outputv() call instead... */ + break; + } -#ifdef USE_VM_PROBES - if(DTRACE_ENABLED(port_command)) { - DTRACE_FORMAT_COMMON_PID_AND_PORT(caller_id, p) - DTRACE4(port_command, process_str, port_str, p->name, "command"); - } + /* Need to increase refc on all binaries */ + for (i = 1; i < evp->vsize; i++) + if (bvp[i]) + driver_binary_inc_refc(bvp[i]); + + new_evp = erts_alloc(ERTS_ALC_T_DRV_CMD_DATA, alloc_size); + + if (evp != &ev) { + sys_memcpy((void *) new_evp, (void *) evp, alloc_size); + new_evp->iov = (SysIOVec *) (((char *) new_evp) + + iov_offset); + bvp = new_evp->binv = (ErlDrvBinary **) (((char *) new_evp) + + binv_offset); + +#ifdef DEBUG + ASSERT(new_evp->vsize == evp->vsize); + ASSERT(new_evp->size == evp->size); + for (i = 0; i < evp->vsize; i++) { + ASSERT(new_evp->iov[i].iov_len == evp->iov[i].iov_len); + ASSERT(new_evp->iov[i].iov_base == evp->iov[i].iov_base); + ASSERT(new_evp->binv[i] == evp->binv[i]); + } #endif - if (r >= 0) { - size -= r; -#ifdef USE_VM_PROBES - if (DTRACE_ENABLED(driver_output)) { - DTRACE_FORMAT_COMMON_PID_AND_PORT(caller_id, p) - DTRACE4(driver_output, process_str, port_str, p->name, size); - } + erts_free(ERTS_ALC_T_TMP, evp); + } + else { /* from stack allocated structure; offsets may differ */ + + sys_memcpy((void *) new_evp, (void *) evp, sizeof(ErlIOVec)); + new_evp->iov = (SysIOVec *) (((char *) new_evp) + + iov_offset); + sys_memcpy((void *) new_evp->iov, + (void *) evp->iov, + evp->vsize * sizeof(SysIOVec)); + new_evp->binv = (ErlDrvBinary **) (((char *) new_evp) + + binv_offset); + sys_memcpy((void *) new_evp->binv, + (void *) evp->binv, + evp->vsize * sizeof(ErlDrvBinary *)); + +#ifdef DEBUG + ASSERT(new_evp->vsize == evp->vsize); + ASSERT(new_evp->size == evp->size); + for (i = 0; i < evp->vsize; i++) { + ASSERT(new_evp->iov[i].iov_len == evp->iov[i].iov_len); + ASSERT(new_evp->iov[i].iov_base == evp->iov[i].iov_base); + ASSERT(new_evp->binv[i] == evp->binv[i]); + } #endif - fpe_was_unmasked = erts_block_fpe(); - (*drv->output)((ErlDrvData)p->drv_data, buf, size); - erts_unblock_fpe(fpe_was_unmasked); - erts_free(ERTS_ALC_T_TMP, buf); + + } + + evp = new_evp; } - else if (r == -2) { - erts_free(ERTS_ALC_T_TMP, buf); - goto bad_value; + + sigdp = erts_port_task_alloc_p2p_sig_data(); + sigdp->flags = ERTS_P2P_SIG_TYPE_OUTPUTV; + sigdp->u.outputv.from = from; + sigdp->u.outputv.evp = evp; + sigdp->u.outputv.cbinp = cbin; + port_sig_callback = port_sig_outputv; + } + else { + ErlDrvSizeT r; + + /* + * Apperently there exist code that write 1 byte to + * much in buffer. Where it resides I don't know, but + * we can live with one byte extra allocated... + */ + + if (!try_call) { + if (erts_iolist_size(list, &size)) + goto bad_value; + + buf = erts_alloc(ERTS_ALC_T_DRV_CMD_DATA, size + 1); + + r = erts_iolist_to_buf(list, buf, size); + ASSERT(ERTS_IOLIST_TO_BUF_SUCCEEDED(r)); } else { - ASSERT(r == -1); /* Overflow */ + char *new_buf; + ErtsTryImmDrvCallResult try_call_res; + ErtsTryImmDrvCallState try_call_state + = ERTS_INIT_TRY_IMM_DRV_CALL_STATE( + c_p, + prt, + ERTS_PORT_SFLGS_INVALID_LOOKUP, + invalid_flags, + !refp, + am_command); + + /* Try with an 8KB buffer first (will often be enough I guess). */ + size = 8*1024; + + buf = erts_alloc(ERTS_ALC_T_TMP, size + 1); + r = erts_iolist_to_buf(list, buf, size); + + if (ERTS_IOLIST_TO_BUF_SUCCEEDED(r)) { + ASSERT(r <= size); + size -= r; + } + else { + erts_free(ERTS_ALC_T_TMP, buf); + if (r == ERTS_IOLIST_TO_BUF_TYPE_ERROR) + goto bad_value; + ASSERT(r == ERTS_IOLIST_TO_BUF_OVERFLOW); + if (erts_iolist_size(list, &size)) + goto bad_value; + buf = erts_alloc(ERTS_ALC_T_TMP, size + 1); + r = erts_iolist_to_buf(list, buf, size); + ASSERT(ERTS_IOLIST_TO_BUF_SUCCEEDED(r)); + } + + try_call_state.pre_chk_sched_flags = 0; /* already checked */ + if (force_immediate_call) + try_call_res = force_imm_drv_call(&try_call_state); + else + try_call_res = try_imm_drv_call(&try_call_state); + switch (try_call_res) { + case ERTS_TRY_IMM_DRV_CALL_OK: + call_driver_output(flags & ERTS_PORT_SIG_FLG_BANG_OP, + c_p ? c_p->common.id : ERTS_INVALID_PID, + from, + prt, + drv, + buf, + size); + if (force_immediate_call) + finalize_force_imm_drv_call(&try_call_state); + else + finalize_imm_drv_call(&try_call_state); + /* Fall through... */ + case ERTS_TRY_IMM_DRV_CALL_INVALID_PORT: + erts_free(ERTS_ALC_T_TMP, buf); + if (try_call_res != ERTS_TRY_IMM_DRV_CALL_OK) + return ERTS_PORT_OP_DROPPED; + if (c_p) + BUMP_REDS(c_p, ERTS_PORT_REDS_CMD_OUTPUT); + return ERTS_PORT_OP_DONE; + case ERTS_TRY_IMM_DRV_CALL_INVALID_SCHED_FLAGS: + sched_flags = try_call_state.sched_flags; + if (async_nosuspend + && (sched_flags & (busy_flgs|ERTS_PTS_FLG_EXIT))) { + erts_free(ERTS_ALC_T_TMP, buf); + return ((sched_flags & ERTS_PTS_FLG_EXIT) + ? ERTS_PORT_OP_DROPPED + : ERTS_PORT_OP_BUSY); + } + case ERTS_TRY_IMM_DRV_CALL_BUSY_LOCK: + /* Schedule outputv() call instead... */ + break; + } + + new_buf = erts_alloc(ERTS_ALC_T_DRV_CMD_DATA, size + 1); + sys_memcpy(new_buf, buf, size); erts_free(ERTS_ALC_T_TMP, buf); - if (erts_iolist_size(list, &size)) { - goto bad_value; + buf = new_buf; + } + + sigdp = erts_port_task_alloc_p2p_sig_data(); + sigdp->flags = ERTS_P2P_SIG_TYPE_OUTPUT; + sigdp->u.output.from = from; + sigdp->u.output.bufp = buf; + sigdp->u.output.size = size; + port_sig_callback = port_sig_output; + } + + task_flags = ERTS_PT_FLG_WAIT_BUSY; + sigdp->flags |= flags; + ns_pthp = NULL; + if (flags & (ERTS_P2P_SIG_DATA_FLG_FORCE|ERTS_P2P_SIG_DATA_FLG_NOSUSPEND)) { + task_flags = 0; + if (flags & ERTS_P2P_SIG_DATA_FLG_FORCE) + sigdp->flags &= ~ERTS_P2P_SIG_DATA_FLG_NOSUSPEND; + else if (async_nosuspend) { + ErtsSchedulerData *esdp = (c_p + ? ERTS_PROC_GET_SCHDATA(c_p) + : erts_get_scheduler_data()); + ASSERT(esdp); + ns_pthp = &esdp->nosuspend_port_task_handle; + sigdp->flags &= ~ERTS_P2P_SIG_DATA_FLG_NOSUSPEND; + } + else if (flags & ERTS_P2P_SIG_DATA_FLG_NOSUSPEND) + task_flags = ERTS_PT_FLG_NOSUSPEND; + } + + ASSERT(ns_pthp || !async_nosuspend); + ASSERT(async_nosuspend || !ns_pthp); + + res = erts_schedule_proc2port_signal(c_p, + prt, + c_p ? c_p->common.id : ERTS_INVALID_PID, + refp, + sigdp, + task_flags, + ns_pthp, + port_sig_callback); + + if (res != ERTS_PORT_OP_SCHEDULED) { + if (drv->outputv) + cleanup_scheduled_outputv(evp, cbin); + else + cleanup_scheduled_output(buf); + return res; + } + + if (!(flags & ERTS_PORT_SIG_FLG_FORCE)) { + sched_flags = erts_smp_atomic32_read_acqb(&prt->sched.flags); + if (!(sched_flags & ERTS_PTS_FLG_BUSY_PORT)) { + if (async_nosuspend) + erts_port_task_tmp_handle_detach(ns_pthp); + } + else { + if (!async_nosuspend) + return ERTS_PORT_OP_BUSY_SCHEDULED; + else { + if (erts_port_task_abort(ns_pthp) == 0) + return ERTS_PORT_OP_BUSY; + else + erts_port_task_tmp_handle_detach(ns_pthp); } + } + } + return res; + +bad_value: + + flags |= ERTS_PORT_SIG_FLG_BAD_OUTPUT; + return bad_port_signal(c_p, flags, prt, from, refp, am_command); +} + +static ERTS_INLINE ErtsPortOpResult +call_deliver_port_exit(int bang_op, + Eterm from, + Port *prt, + erts_aint32_t state, + Eterm reason, + int broken_link) +{ + /* + * if (bang_op) + * we are part of a "Prt ! {From, close}" operation + * else + * we are part of a call to port_close(Port) + * behave accordingly... + */ + + if (state & ERTS_PORT_SFLGS_INVALID_LOOKUP) + return ERTS_PORT_OP_DROPPED; + + if (bang_op && from != ERTS_PORT_GET_CONNECTED(prt)) { + send_badsig(prt); + return ERTS_PORT_OP_DROPPED; + } + + if (broken_link) { + ErtsLink *lnk = erts_remove_link(&ERTS_P_LINKS(prt), from); + if (lnk) + erts_destroy_link(lnk); + else + return ERTS_PORT_OP_DROPPED; + } + + if (!erts_deliver_port_exit(prt, from, reason, bang_op)) + return ERTS_PORT_OP_DROPPED; - /* - * I know drivers that pad space with '\0' this is clearly - * incorrect but I don't feel like fixing them now, insted - * add ONE extra byte. - */ - buf = erts_alloc(ERTS_ALC_T_TMP, size+1); - r = io_list_to_buf(list, buf, size); #ifdef USE_VM_PROBES - if (DTRACE_ENABLED(driver_output)) { - DTRACE_FORMAT_COMMON_PID_AND_PORT(caller_id, p) - DTRACE4(driver_output, process_str, port_str, p->name, size); - } + if(DTRACE_ENABLED(port_command) && bang_op) { + DTRACE_FORMAT_COMMON_PID_AND_PORT(from, prt); + DTRACE4(port_command, process_str, port_str, prt->name, "close"); + } #endif - fpe_was_unmasked = erts_block_fpe(); - (*drv->output)((ErlDrvData)p->drv_data, buf, size); - erts_unblock_fpe(fpe_was_unmasked); - erts_free(ERTS_ALC_T_TMP, buf); + + return ERTS_PORT_OP_DONE; +} + +static int +port_sig_exit(Port *prt, + erts_aint32_t state, + int op, + ErtsProc2PortSigData *sigdp) +{ + Eterm msg = am_badarg; + if (op == ERTS_PROC2PORT_SIG_EXEC) { + ErtsPortOpResult res; + int bang_op = sigdp->flags & ERTS_P2P_SIG_DATA_FLG_BANG_OP; + int broken_link = sigdp->flags & ERTS_P2P_SIG_DATA_FLG_BROKEN_LINK; + res = call_deliver_port_exit(bang_op, + sigdp->u.exit.from, + prt, + state, + sigdp->u.exit.reason, + broken_link); + + if (res == ERTS_PORT_OP_DONE) + msg = am_true; + } + if (sigdp->u.exit.bp) + free_message_buffer(sigdp->u.exit.bp); + if (sigdp->flags & ERTS_P2P_SIG_DATA_FLG_REPLY) + port_sched_op_reply(sigdp->caller, sigdp->ref, msg); + + return ERTS_PORT_REDS_EXIT; +} + +ErtsPortOpResult +erts_port_exit(Process *c_p, + int flags, + Port *prt, + Eterm from, + Eterm reason, + Eterm *refp) +{ + ErtsPortOpResult res; + ErtsProc2PortSigData *sigdp; + ErlHeapFragment *bp = NULL; + + ASSERT((flags & ~(ERTS_PORT_SIG_FLG_BANG_OP + | ERTS_PORT_SIG_FLG_ASYNC + | ERTS_PORT_SIG_FLG_BROKEN_LINK + | ERTS_PORT_SIG_FLG_FORCE_SCHED)) == 0); + + if (!(flags & ERTS_PORT_SIG_FLG_FORCE_SCHED)) { + ErtsTryImmDrvCallState try_call_state + = ERTS_INIT_TRY_IMM_DRV_CALL_STATE(c_p, + prt, + ERTS_PORT_SFLGS_INVALID_LOOKUP, + 0, + !refp, + am_exit); + + + switch (try_imm_drv_call(&try_call_state)) { + case ERTS_TRY_IMM_DRV_CALL_OK: { + res = call_deliver_port_exit(flags & ERTS_PORT_SIG_FLG_BANG_OP, + from, + prt, + try_call_state.state, + reason, + flags & ERTS_PORT_SIG_FLG_BROKEN_LINK); + finalize_imm_drv_call(&try_call_state); + if (res == ERTS_PORT_OP_DONE && c_p) + BUMP_REDS(c_p, ERTS_PORT_REDS_EXIT); + return res; + } + case ERTS_TRY_IMM_DRV_CALL_INVALID_PORT: + return ERTS_PORT_OP_DROPPED; + default: + /* Schedule call instead... */ + break; } } - p->bytes_out += size; - erts_smp_atomic_add_nob(&erts_bytes_out, size); -#ifdef ERTS_SMP - if (p->xports) - erts_smp_xports_unlock(p); - ASSERT(!p->xports); -#endif - p->caller = NIL; - return 0; + sigdp = erts_port_task_alloc_p2p_sig_data(); + sigdp->flags = ERTS_P2P_SIG_TYPE_EXIT | flags; + sigdp->u.exit.from = from; - bad_value: - p->caller = NIL; - { - erts_dsprintf_buf_t *dsbufp = erts_create_logger_dsbuf(); - erts_dsprintf(dsbufp, "Bad value on output port '%s'\n", p->name); - erts_send_error_to_logger_nogl(dsbufp); - return 1; + if (is_immed(reason)) { + sigdp->u.exit.reason = reason; + sigdp->u.exit.bp = NULL; + } + else { + Eterm *hp; + Uint hsz = size_object(reason); + bp = new_message_buffer(hsz); + sigdp->u.exit.bp = bp; + hp = bp->mem; + sigdp->u.exit.reason = copy_struct(reason, + hsz, + &hp, + &bp->off_heap); + } + + res = erts_schedule_proc2port_signal(c_p, + prt, + c_p ? c_p->common.id : from, + refp, + sigdp, + 0, + NULL, + port_sig_exit); + + if (res == ERTS_PORT_OP_DROPPED) { + if (bp) + free_message_buffer(bp); } + + return res; } -/* initialize the port array */ -void init_io(void) +static ErtsPortOpResult +set_port_connected(int bang_op, + Eterm from, + Port *prt, + erts_aint32_t state, + Eterm connect) { - int i; - ErlDrvEntry** dp; - char maxports[21]; /* enough for any 64-bit integer */ - size_t maxportssize = sizeof(maxports); - Uint ports_bits = ERTS_PORTS_BITS; - Sint port_extra_shift; + /* + * if (bang_op) + * we are part of a "Prt ! {From, {connect, Connect}}" operation + * else + * we are part of a call to port_connect(Port, Connect) + * behave accordingly... + */ -#ifdef ERTS_SMP - init_xports_list_alloc(); + if (state & ERTS_PORT_SFLGS_INVALID_LOOKUP) + return ERTS_PORT_OP_DROPPED; + + if (bang_op) { /* Bang operation */ + if (is_not_internal_pid(connect) || ERTS_PORT_GET_CONNECTED(prt) != from) { + send_badsig(prt); + return ERTS_PORT_OP_DROPPED; + } + + ERTS_PORT_SET_CONNECTED(prt, connect); + deliver_result(prt->common.id, from, am_connected); + +#ifdef USE_VM_PROBES + if(DTRACE_ENABLED(port_command)) { + DTRACE_FORMAT_COMMON_PID_AND_PORT(from, prt); + DTRACE4(port_command, process_str, port_str, prt->name, "connect"); + } #endif + } + else { /* Port BIF operation */ + Process *rp = erts_proc_lookup_raw(connect); + if (!rp) + return ERTS_PORT_OP_DROPPED; + erts_smp_proc_lock(rp, ERTS_PROC_LOCK_LINK); + if (ERTS_PROC_IS_EXITING(rp)) { + erts_smp_proc_unlock(rp, ERTS_PROC_LOCK_LINK); + return ERTS_PORT_OP_DROPPED; + } - pdl_init(); + erts_add_link(&ERTS_P_LINKS(rp), LINK_PID, prt->common.id); + erts_add_link(&ERTS_P_LINKS(prt), LINK_PID, connect); - if (erts_sys_getenv_raw("ERL_MAX_PORTS", maxports, &maxportssize) == 0) - erts_max_ports = atoi(maxports); - else - erts_max_ports = sys_max_files(); + ERTS_PORT_SET_CONNECTED(prt, connect); - if (erts_max_ports > ERTS_MAX_PORTS) - erts_max_ports = ERTS_MAX_PORTS; - if (erts_max_ports < 1024) - erts_max_ports = 1024; + erts_smp_proc_unlock(rp, ERTS_PROC_LOCK_LINK); - if (erts_use_r9_pids_ports) { - ports_bits = ERTS_R9_PORTS_BITS; - if (erts_max_ports > ERTS_MAX_R9_PORTS) - erts_max_ports = ERTS_MAX_R9_PORTS; +#ifdef USE_VM_PROBES + if (DTRACE_ENABLED(port_connect)) { + DTRACE_CHARBUF(process_str, DTRACE_TERM_BUF_SIZE); + DTRACE_CHARBUF(port_str, DTRACE_TERM_BUF_SIZE); + DTRACE_CHARBUF(newprocess_str, DTRACE_TERM_BUF_SIZE); + + dtrace_pid_str(connect, process_str); + erts_snprintf(port_str, sizeof(DTRACE_CHARBUF_NAME(port_str)), "%T", prt->common.id); + dtrace_proc_str(rp, newprocess_str); + DTRACE4(port_connect, process_str, port_str, prt->name, newprocess_str); + } +#endif } - port_extra_shift = erts_fit_in_bits(erts_max_ports - 1); - port_num_mask = (1 << ports_bits) - 1; + return ERTS_PORT_OP_DONE; +} - erts_port_tab_index_mask = ~(~((Uint) 0) << port_extra_shift); - erts_max_ports = 1 << port_extra_shift; +static int +port_sig_connect(Port *prt, erts_aint32_t state, int op, ErtsProc2PortSigData *sigdp) +{ + Eterm msg = am_badarg; + if (op == ERTS_PROC2PORT_SIG_EXEC) { + ErtsPortOpResult res; + res = set_port_connected(sigdp->flags & ERTS_P2P_SIG_DATA_FLG_BANG_OP, + sigdp->u.connect.from, + prt, + state, + sigdp->u.connect.connected); + if (res == ERTS_PORT_OP_DONE) + msg = am_true; + } + if (sigdp->flags & ERTS_P2P_SIG_DATA_FLG_REPLY) + port_sched_op_reply(sigdp->caller, sigdp->ref, msg); + return ERTS_PORT_REDS_CONNECT; +} + +ErtsPortOpResult +erts_port_connect(Process *c_p, + int flags, + Port *prt, + Eterm from, + Eterm connect, + Eterm *refp) +{ + ErtsProc2PortSigData *sigdp; + Eterm connect_id; + ErtsTryImmDrvCallState try_call_state + = ERTS_INIT_TRY_IMM_DRV_CALL_STATE(c_p, + prt, + ERTS_PORT_SFLGS_INVALID_LOOKUP, + 0, + !refp, + am_connect); + + ASSERT((flags & ~(ERTS_PORT_SIG_FLG_BANG_OP + | ERTS_PORT_SIG_FLG_ASYNC)) == 0); + + if (is_not_internal_pid(connect)) + connect_id = NIL; /* Fail in op (for signal order) */ + else + connect_id = connect; + + switch (try_imm_drv_call(&try_call_state)) { + case ERTS_TRY_IMM_DRV_CALL_OK: { + ErtsPortOpResult res; + res = set_port_connected(flags & ERTS_PORT_SIG_FLG_BANG_OP, + from, + prt, + try_call_state.state, + connect_id); + finalize_imm_drv_call(&try_call_state); + if (res == ERTS_PORT_OP_DONE) + BUMP_REDS(c_p, ERTS_PORT_REDS_CONNECT); + return res; + } + case ERTS_TRY_IMM_DRV_CALL_INVALID_PORT: + return ERTS_PORT_OP_DROPPED; + default: + /* Schedule call instead... */ + break; + } - erts_smp_mtx_init(&erts_driver_list_lock,"driver_list"); - driver_list = NULL; - erts_smp_tsd_key_create(&driver_list_lock_status_key); - erts_smp_tsd_key_create(&driver_list_last_error_key); + sigdp = erts_port_task_alloc_p2p_sig_data(); + sigdp->flags = ERTS_P2P_SIG_TYPE_CONNECT | flags; + + sigdp->u.connect.from = from; + sigdp->u.connect.connected = connect_id; + + return erts_schedule_proc2port_signal(c_p, + prt, + c_p->common.id, + refp, + sigdp, + 0, + NULL, + port_sig_connect); +} + +static void +port_unlink(Port *prt, Eterm from) +{ + ErtsLink *lnk = erts_remove_link(&ERTS_P_LINKS(prt), from); + if (lnk) + erts_destroy_link(lnk); +} - if (erts_max_ports * sizeof(Port) <= erts_max_ports) { - /* More memory needed than the whole address space. */ - erts_alloc_enomem(ERTS_ALC_T_PORT_TABLE, ~((Uint) 0)); +static int +port_sig_unlink(Port *prt, erts_aint32_t state, int op, ErtsProc2PortSigData *sigdp) +{ + if (op == ERTS_PROC2PORT_SIG_EXEC) + port_unlink(prt, sigdp->u.unlink.from); + if (sigdp->flags & ERTS_P2P_SIG_DATA_FLG_REPLY) + port_sched_op_reply(sigdp->caller, sigdp->ref, am_true); + return ERTS_PORT_REDS_UNLINK; +} + +ErtsPortOpResult +erts_port_unlink(Process *c_p, Port *prt, Eterm from, Eterm *refp) +{ + ErtsProc2PortSigData *sigdp; + ErtsTryImmDrvCallState try_call_state + = ERTS_INIT_TRY_IMM_DRV_CALL_STATE(c_p, + prt, + ERTS_PORT_SFLGS_DEAD, + 0, + !refp, + am_unlink); + + switch (try_imm_drv_call(&try_call_state)) { + case ERTS_TRY_IMM_DRV_CALL_OK: + port_unlink(prt, from); + finalize_imm_drv_call(&try_call_state); + BUMP_REDS(c_p, ERTS_PORT_REDS_UNLINK); + return ERTS_PORT_OP_DONE; + case ERTS_TRY_IMM_DRV_CALL_INVALID_PORT: + return ERTS_PORT_OP_DROPPED; + default: + /* Schedule call instead... */ + break; } - erts_port = (Port *) erts_alloc(ERTS_ALC_T_PORT_TABLE, - erts_max_ports * sizeof(Port)); + sigdp = erts_port_task_alloc_p2p_sig_data(); + sigdp->flags = ERTS_P2P_SIG_TYPE_UNLINK; + sigdp->u.unlink.from = from; + + return erts_schedule_proc2port_signal(c_p, + prt, + c_p ? c_p->common.id : from, + refp, + sigdp, + 0, + NULL, + port_sig_unlink); +} - erts_smp_atomic_init_nob(&erts_bytes_out, 0); - erts_smp_atomic_init_nob(&erts_bytes_in, 0); +static void +port_link_failure(Eterm port_id, Eterm linker) +{ + Process *rp; + ErtsProcLocks rp_locks = ERTS_PROC_LOCK_LINK|ERTS_PROC_LOCKS_XSIG_SEND; + ASSERT(is_internal_pid(linker)); + rp = erts_pid2proc(NULL, 0, linker, rp_locks); + if (rp) { + ErtsLink *rlnk = erts_remove_link(&ERTS_P_LINKS(rp), port_id); + if (rlnk) { + int xres = erts_send_exit_signal(NULL, + port_id, + rp, + &rp_locks, + am_noproc, + NIL, + NULL, + 0); + if (xres >= 0 && IS_TRACED_FL(rp, F_TRACE_PROCS)) { + /* We didn't exit the process and it is traced */ + if (IS_TRACED_FL(rp, F_TRACE_PROCS)) + trace_proc(NULL, rp, am_getting_unlinked, port_id); + } + if (rp_locks) + erts_smp_proc_unlock(rp, rp_locks); + } + } +} + +static void +port_link(Port *prt, erts_aint32_t state, Eterm to) +{ + if (!(state & ERTS_PORT_SFLGS_INVALID_LOOKUP)) + erts_add_link(&ERTS_P_LINKS(prt), LINK_PID, to); + else + port_link_failure(prt->common.id, to); +} + +static int +port_sig_link(Port *prt, erts_aint32_t state, int op, ErtsProc2PortSigData *sigdp) +{ + if (op == ERTS_PROC2PORT_SIG_EXEC) + port_link(prt, state, sigdp->u.link.to); + else + port_link_failure(sigdp->u.link.port, sigdp->u.link.to); + if (sigdp->flags & ERTS_P2P_SIG_DATA_FLG_REPLY) + port_sched_op_reply(sigdp->caller, sigdp->ref, am_true); + return ERTS_PORT_REDS_LINK; +} + +ErtsPortOpResult +erts_port_link(Process *c_p, Port *prt, Eterm to, Eterm *refp) +{ + ErtsProc2PortSigData *sigdp; + ErtsTryImmDrvCallState try_call_state + = ERTS_INIT_TRY_IMM_DRV_CALL_STATE(c_p, + prt, + ERTS_PORT_SFLGS_INVALID_LOOKUP, + 0, + !refp, + am_link); + + switch (try_imm_drv_call(&try_call_state)) { + case ERTS_TRY_IMM_DRV_CALL_OK: + port_link(prt, try_call_state.state, to); + finalize_imm_drv_call(&try_call_state); + BUMP_REDS(c_p, ERTS_PORT_REDS_LINK); + return ERTS_PORT_OP_DONE; + case ERTS_TRY_IMM_DRV_CALL_INVALID_PORT: + return ERTS_PORT_OP_BADARG; + default: + /* Schedule call instead... */ + break; + } - for (i = 0; i < erts_max_ports; i++) { - erts_port_task_init_sched(&erts_port[i].sched); + sigdp = erts_port_task_alloc_p2p_sig_data(); + sigdp->flags = ERTS_P2P_SIG_TYPE_LINK; + sigdp->u.link.port = prt->common.id; + sigdp->u.link.to = to; + + return erts_schedule_proc2port_signal(c_p, + prt, + c_p ? c_p->common.id : to, + refp, + sigdp, + 0, + NULL, + port_sig_link); +} + +void erts_init_io(int port_tab_size, + int port_tab_size_ignore_files, + int legacy_port_tab) +{ + ErlDrvEntry** dp; + UWord common_element_size; + erts_smp_rwmtx_opt_t drv_list_rwmtx_opts = ERTS_SMP_RWMTX_OPT_DEFAULT_INITER; + drv_list_rwmtx_opts.type = ERTS_SMP_RWMTX_TYPE_EXTREMELY_FREQUENT_READ; + drv_list_rwmtx_opts.lived = ERTS_SMP_RWMTX_LONG_LIVED; + + common_element_size = ERTS_ALC_DATA_ALIGN_SIZE(sizeof(Port)); + common_element_size += ERTS_ALC_DATA_ALIGN_SIZE(sizeof(ErtsPortTaskBusyPortQ)); + common_element_size += 10; /* name */ #ifdef ERTS_SMP - erts_smp_atomic_init_nob(&erts_port[i].refc, 0); - erts_port[i].lock = NULL; - erts_port[i].xports = NULL; - erts_smp_spinlock_init_x(&erts_port[i].state_lck, -#ifdef ERTS_ENABLE_LOCK_COUNT - (erts_lcnt_rt_options & ERTS_LCNT_OPT_PORTLOCK) ? "port_state" : NULL, -#else - "port_state", -#endif - make_small(0)); + common_element_size += sizeof(erts_mtx_t); + + init_xports_list_alloc(); #endif - erts_port[i].tracer_proc = NIL; - erts_port[i].trace_flags = 0; - erts_port[i].drv_ptr = NULL; - erts_port[i].status = ERTS_PORT_SFLG_FREE; - erts_port[i].name = NULL; - erts_port[i].nlinks = NULL; - erts_port[i].monitors = NULL; - erts_port[i].linebuf = NULL; - erts_port[i].port_data_lock = NULL; + pdl_init(); + + if (!port_tab_size_ignore_files) { + int max_files = sys_max_files(); + if (port_tab_size < max_files) + port_tab_size = max_files; } - erts_smp_atomic32_init_nob(&erts_ports_snapshot, (erts_aint32_t) 0); - last_port_num = 0; - erts_smp_spinlock_init(&get_free_port_lck, "get_free_port"); + if (port_tab_size > ERTS_MAX_PORTS) + port_tab_size = ERTS_MAX_PORTS; + else if (port_tab_size < ERTS_MIN_PORTS) + port_tab_size = ERTS_MIN_PORTS; + + erts_smp_rwmtx_init_opt(&erts_driver_list_lock, + &drv_list_rwmtx_opts, + "driver_list"); + driver_list = NULL; + erts_smp_tsd_key_create(&driver_list_lock_status_key, + "erts_driver_list_lock_status_key"); + erts_smp_tsd_key_create(&driver_list_last_error_key, + "erts_driver_list_last_error_key"); + + erts_ptab_init_table(&erts_port, + ERTS_ALC_T_PORT_TABLE, + NULL, + (ErtsPTabElementCommon *) &erts_invalid_port.common, + port_tab_size, + common_element_size, /* Doesn't need to be excact */ + "port_table", + legacy_port_tab); + + erts_smp_atomic_init_nob(&erts_bytes_out, 0); + erts_smp_atomic_init_nob(&erts_bytes_in, 0); sys_init_io(); erts_smp_tsd_set(driver_list_lock_status_key, (void *) 1); - erts_smp_mtx_lock(&erts_driver_list_lock); + erts_smp_rwmtx_rwlock(&erts_driver_list_lock); init_driver(&fd_driver, &fd_driver_entry, NULL); +#ifndef __OSE__ init_driver(&vanilla_driver, &vanilla_driver_entry, NULL); +#endif init_driver(&spawn_driver, &spawn_driver_entry, NULL); + erts_init_static_drivers(); for (dp = driver_tab; *dp != NULL; dp++) erts_add_driver_entry(*dp, NULL, 1); erts_smp_tsd_set(driver_list_lock_status_key, NULL); - erts_smp_mtx_unlock(&erts_driver_list_lock); + erts_smp_rwmtx_rwunlock(&erts_driver_list_lock); } #if defined(ERTS_ENABLE_LOCK_COUNT) && defined(ERTS_SMP) -void erts_lcnt_enable_io_lock_count(int enable) { - int i; - for (i = 0; i < erts_max_ports; i++) { - Port* p = &erts_port[i]; - if (enable) { - erts_lcnt_init_lock_x(&p->state_lck.lcnt, "port_state", ERTS_LCNT_LT_SPINLOCK, make_small(i)); - if (p->lock) { - erts_lcnt_init_lock_x(&p->lock->lcnt, "port_lock", ERTS_LCNT_LT_MUTEX, make_small(i)); - } - } else { - erts_lcnt_destroy_lock(&p->state_lck.lcnt); - if (p->lock) { - erts_lcnt_destroy_lock(&p->lock->lcnt); - } - } +static ERTS_INLINE void lcnt_enable_drv_lock_count(erts_driver_t *dp, int enable) +{ + if (dp->lock) { + if (enable) + erts_lcnt_init_lock_x(&dp->lock->lcnt, + "driver_lock", + ERTS_LCNT_LT_MUTEX, + erts_atom_put((byte*)dp->name, + sys_strlen(dp->name), + ERTS_ATOM_ENC_LATIN1, + 1)); + + else + erts_lcnt_destroy_lock(&dp->lock->lcnt); + } } + +static ERTS_INLINE void lcnt_enable_port_lock_count(Port *prt, int enable) +{ + erts_aint32_t state = erts_atomic32_read_nob(&prt->state); + if (!enable) { + erts_lcnt_destroy_lock(&prt->sched.mtx.lcnt); + if (state & ERTS_PORT_SFLG_PORT_SPECIFIC_LOCK) + erts_lcnt_destroy_lock(&prt->lock->lcnt); + } + else { + erts_lcnt_init_lock_x(&prt->sched.mtx.lcnt, + "port_sched_lock", + ERTS_LCNT_LT_MUTEX, + prt->common.id); + if (state & ERTS_PORT_SFLG_PORT_SPECIFIC_LOCK) + erts_lcnt_init_lock_x(&prt->lock->lcnt, + "port_lock", + ERTS_LCNT_LT_MUTEX, + prt->common.id); + } +} + +void erts_lcnt_enable_io_lock_count(int enable) +{ + erts_driver_t *dp; + int i, max = erts_ptab_max(&erts_port); + + for (i = 0; i < max; i++) { + Port *prt = erts_pix2port(i); + if (prt) + lcnt_enable_port_lock_count(prt, enable); + } + + lcnt_enable_drv_lock_count(&vanilla_driver, enable); + lcnt_enable_drv_lock_count(&spawn_driver, enable); + lcnt_enable_drv_lock_count(&fd_driver, enable); + for (dp = driver_list; dp; dp = dp->next) + lcnt_enable_drv_lock_count(dp, enable); +} #endif /* @@ -1594,14 +3018,15 @@ deliver_result(Eterm sender, Eterm pid, Eterm res) { Process *rp; ErtsProcLocks rp_locks = 0; + int scheduler = erts_get_scheduler_id() != 0; ERTS_SMP_CHK_NO_PROC_LOCKS; - ASSERT(is_internal_port(sender) - && is_internal_pid(pid) - && internal_pid_index(pid) < erts_max_processes); + ASSERT(is_internal_port(sender) && is_internal_pid(pid)); - rp = erts_pid2proc_opt(NULL, 0, pid, 0, ERTS_P2P_FLG_SMP_INC_REFC); + rp = (scheduler + ? erts_proc_lookup(pid) + : erts_pid2proc_opt(NULL, 0, pid, 0, ERTS_P2P_FLG_SMP_INC_REFC)); if (rp) { Eterm tuple; @@ -1609,17 +3034,22 @@ deliver_result(Eterm sender, Eterm pid, Eterm res) ErlOffHeap *ohp; Eterm* hp; Uint sz_res; - sz_res = size_object(res); - hp = erts_alloc_message_heap(sz_res + 3, &bp, &ohp, rp, &rp_locks); - res = copy_struct(res, sz_res, &hp, ohp); - tuple = TUPLE2(hp, sender, res); + + sz_res = size_object(res); + hp = erts_alloc_message_heap(sz_res + 3, &bp, &ohp, rp, &rp_locks); + res = copy_struct(res, sz_res, &hp, ohp); + tuple = TUPLE2(hp, sender, res); erts_queue_message(rp, &rp_locks, bp, tuple, NIL #ifdef USE_VM_PROBES , NIL #endif ); - erts_smp_proc_unlock(rp, rp_locks); - erts_smp_proc_dec_refc(rp); + + if (rp_locks) + erts_smp_proc_unlock(rp, rp_locks); + if (!scheduler) + erts_smp_proc_dec_refc(rp); + } } @@ -1632,7 +3062,7 @@ deliver_result(Eterm sender, Eterm pid, Eterm res) * len -- length of data */ -static void deliver_read_message(Port* prt, Eterm to, +static void deliver_read_message(Port* prt, erts_aint32_t state, Eterm to, char *hbuf, ErlDrvSizeT hlen, char *buf, ErlDrvSizeT len, int eol) { @@ -1644,28 +3074,33 @@ static void deliver_read_message(Port* prt, Eterm to, ErlHeapFragment *bp; ErlOffHeap *ohp; ErtsProcLocks rp_locks = 0; + int scheduler = erts_get_scheduler_id() != 0; ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt)); ERTS_SMP_CHK_NO_PROC_LOCKS; need = 3 + 3 + 2*hlen; - if (prt->status & ERTS_PORT_SFLG_LINEBUF_IO) { + + if (state & ERTS_PORT_SFLG_LINEBUF_IO) { need += 3; } - if (prt->status & ERTS_PORT_SFLG_BINARY_IO && buf != NULL) { + if ((state & ERTS_PORT_SFLG_BINARY_IO) && buf != NULL) { need += PROC_BIN_SIZE; } else { need += 2*len; } - rp = erts_pid2proc_opt(NULL, 0, to, 0, ERTS_P2P_FLG_SMP_INC_REFC); + rp = (scheduler + ? erts_proc_lookup(to) + : erts_pid2proc_opt(NULL, 0, to, 0, ERTS_P2P_FLG_SMP_INC_REFC)); + if (!rp) return; hp = erts_alloc_message_heap(need, &bp, &ohp, rp, &rp_locks); listp = NIL; - if ((prt->status & ERTS_PORT_SFLG_BINARY_IO) == 0) { + if ((state & ERTS_PORT_SFLG_BINARY_IO) == 0) { listp = buf_to_intlist(&hp, buf, len, listp); } else if (buf != NULL) { ProcBin* pb; @@ -1696,14 +3131,14 @@ static void deliver_read_message(Port* prt, Eterm to, listp = buf_to_intlist(&hp, hbuf, hlen, listp); } - if (prt->status & ERTS_PORT_SFLG_LINEBUF_IO){ + if (state & ERTS_PORT_SFLG_LINEBUF_IO){ listp = TUPLE2(hp, (eol) ? am_eol : am_noeol, listp); hp += 3; } tuple = TUPLE2(hp, am_data, listp); hp += 3; - tuple = TUPLE2(hp, prt->id, tuple); + tuple = TUPLE2(hp, prt->common.id, tuple); hp += 3; erts_queue_message(rp, &rp_locks, bp, tuple, am_undefined @@ -1711,15 +3146,18 @@ static void deliver_read_message(Port* prt, Eterm to, , NIL #endif ); - erts_smp_proc_unlock(rp, rp_locks); - erts_smp_proc_dec_refc(rp); + if (rp_locks) + erts_smp_proc_unlock(rp, rp_locks); + if (!scheduler) + erts_smp_proc_dec_refc(rp); } /* * Deliver all lines in a line buffer, repeats calls to * deliver_read_message, and takes the same parameters. */ -static void deliver_linebuf_message(Port* prt, Eterm to, +static void deliver_linebuf_message(Port* prt, erts_aint_t state, + Eterm to, char* hbuf, ErlDrvSizeT hlen, char *buf, ErlDrvSizeT len) { @@ -1728,7 +3166,7 @@ static void deliver_linebuf_message(Port* prt, Eterm to, if(init_linebuf_context(&lc,&(prt->linebuf), buf, len) < 0) return; while((ret = read_linebuf(&lc)) > LINEBUF_EMPTY) - deliver_read_message(prt, to, hbuf, hlen, LINEBUF_DATA(lc), + deliver_read_message(prt, state, to, hbuf, hlen, LINEBUF_DATA(lc), LINEBUF_DATALEN(lc), (ret == LINEBUF_EOL)); } @@ -1739,20 +3177,25 @@ static void deliver_linebuf_message(Port* prt, Eterm to, * Parameters: * prt - Pointer to a Port structure for this port. */ -static void flush_linebuf_messages(Port *prt) +static void flush_linebuf_messages(Port *prt, erts_aint32_t state) { LineBufContext lc; int ret; ERTS_SMP_LC_ASSERT(!prt || erts_lc_is_port_locked(prt)); - if(prt == NULL || !(prt->status & ERTS_PORT_SFLG_LINEBUF_IO)) + + if (!prt) + return; + + if (!(state & ERTS_PORT_SFLG_LINEBUF_IO)) return; if(init_linebuf_context(&lc,&(prt->linebuf), NULL, 0) < 0) return; while((ret = flush_linebuf(&lc)) > LINEBUF_EMPTY) deliver_read_message(prt, - prt->connected, + state, + ERTS_PORT_GET_CONNECTED(prt), NULL, 0, LINEBUF_DATA(lc), @@ -1779,6 +3222,8 @@ deliver_vec_message(Port* prt, /* Port */ ErlHeapFragment *bp; ErlOffHeap *ohp; ErtsProcLocks rp_locks = 0; + int scheduler = erts_get_scheduler_id() != 0; + erts_aint32_t state; ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt)); ERTS_SMP_CHK_NO_PROC_LOCKS; @@ -1787,16 +3232,20 @@ deliver_vec_message(Port* prt, /* Port */ * Check arguments for validity. */ - rp = erts_pid2proc_opt(NULL, 0, to, 0, ERTS_P2P_FLG_SMP_INC_REFC); + + rp = (scheduler + ? erts_proc_lookup(to) + : erts_pid2proc_opt(NULL, 0, to, 0, ERTS_P2P_FLG_SMP_INC_REFC)); if (!rp) return; + state = erts_atomic32_read_nob(&prt->state); /* * Calculate the exact number of heap words needed. */ need = 3 + 3; /* Heap space for two tuples */ - if (prt->status & ERTS_PORT_SFLG_BINARY_IO) { + if (state & ERTS_PORT_SFLG_BINARY_IO) { need += (2+PROC_BIN_SIZE)*vsize - 2 + hlen*2; } else { need += (hlen+csize)*2; @@ -1807,7 +3256,7 @@ deliver_vec_message(Port* prt, /* Port */ listp = NIL; iov += vsize; - if ((prt->status & ERTS_PORT_SFLG_BINARY_IO) == 0) { + if ((state & ERTS_PORT_SFLG_BINARY_IO) == 0) { Eterm* thp = hp; while (vsize--) { iov--; @@ -1860,7 +3309,7 @@ deliver_vec_message(Port* prt, /* Port */ tuple = TUPLE2(hp, am_data, listp); hp += 3; - tuple = TUPLE2(hp, prt->id, tuple); + tuple = TUPLE2(hp, prt->common.id, tuple); hp += 3; erts_queue_message(rp, &rp_locks, bp, tuple, am_undefined @@ -1869,7 +3318,8 @@ deliver_vec_message(Port* prt, /* Port */ #endif ); erts_smp_proc_unlock(rp, rp_locks); - erts_smp_proc_dec_refc(rp); + if (!scheduler) + erts_smp_proc_dec_refc(rp); } @@ -1892,7 +3342,7 @@ static void deliver_bin_message(Port* prt, /* port */ /* * Note. * - * The test for (p->status & ERTS_PORT_SFLGS_DEAD) == 0 is important since the + * The test for ERTS_PORT_SFLGS_DEAD is important since the * driver's flush function might call driver_async, which when using no * threads and being short circuited will notice that the io queue is empty * (after calling the driver's async_ready) and recursively call @@ -1908,7 +3358,7 @@ static void flush_port(Port *p) if (p->drv_ptr->flush != NULL) { #ifdef USE_VM_PROBES if (DTRACE_ENABLED(driver_flush)) { - DTRACE_FORMAT_COMMON_PID_AND_PORT(p->connected, p) + DTRACE_FORMAT_COMMON_PID_AND_PORT(ERTS_PORT_GET_CONNECTED(p), p) DTRACE3(driver_flush, process_str, port_str, p->name); } #endif @@ -1923,11 +3373,12 @@ static void flush_port(Port *p) } #ifdef ERTS_SMP if (p->xports) - erts_smp_xports_unlock(p); + erts_port_handle_xports(p); ASSERT(!p->xports); #endif } - if ((p->status & ERTS_PORT_SFLGS_DEAD) == 0 && is_port_ioq_empty(p)) { + if ((erts_atomic32_read_nob(&p->state) & ERTS_PORT_SFLGS_DEAD) == 0 + && is_port_ioq_empty(p)) { terminate_port(p); } } @@ -1939,29 +3390,29 @@ terminate_port(Port *prt) Eterm send_closed_port_id; Eterm connected_id = NIL /* Initialize to silence compiler */; erts_driver_t *drv; - int halt; + erts_aint32_t state; ERTS_SMP_CHK_NO_PROC_LOCKS; ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt)); - ASSERT(!prt->nlinks); - ASSERT(!prt->monitors); + ASSERT(!ERTS_P_LINKS(prt)); + ASSERT(!ERTS_P_MONITORS(prt)); - /* prt->status may be altered by kill_port()below */ - halt = (prt->status & ERTS_PORT_SFLG_HALT) != 0; - if (prt->status & ERTS_PORT_SFLG_SEND_CLOSED) { - erts_port_status_band_set(prt, ~ERTS_PORT_SFLG_SEND_CLOSED); - send_closed_port_id = prt->id; - connected_id = prt->connected; + /* state may be altered by kill_port() below */ + state = erts_atomic32_read_band_nob(&prt->state, + ~ERTS_PORT_SFLG_SEND_CLOSED); + if (state & ERTS_PORT_SFLG_SEND_CLOSED) { + send_closed_port_id = prt->common.id; + connected_id = ERTS_PORT_GET_CONNECTED(prt); } else { send_closed_port_id = NIL; } #ifdef ERTS_SMP - erts_cancel_smp_ptimer(prt->ptimer); + erts_cancel_smp_ptimer(prt->common.u.alive.ptimer); #else - erts_cancel_timer(&prt->tm); + erts_cancel_timer(&prt->common.u.alive.tm); #endif drv = prt->drv_ptr; @@ -1969,7 +3420,7 @@ terminate_port(Port *prt) int fpe_was_unmasked = erts_block_fpe(); #ifdef USE_VM_PROBES if (DTRACE_ENABLED(driver_stop)) { - DTRACE_FORMAT_COMMON_PID_AND_PORT(prt->connected, prt) + DTRACE_FORMAT_COMMON_PID_AND_PORT(connected_id, prt) DTRACE3(driver_stop, process_str, drv->name, port_str); } #endif @@ -1977,43 +3428,41 @@ terminate_port(Port *prt) erts_unblock_fpe(fpe_was_unmasked); #ifdef ERTS_SMP if (prt->xports) - erts_smp_xports_unlock(prt); + erts_port_handle_xports(prt); ASSERT(!prt->xports); #endif } if(drv->handle != NULL) { - erts_smp_mtx_lock(&erts_driver_list_lock); + erts_smp_rwmtx_rlock(&erts_driver_list_lock); erts_ddll_decrement_port_count(drv->handle); - erts_smp_mtx_unlock(&erts_driver_list_lock); + erts_smp_rwmtx_runlock(&erts_driver_list_lock); } stopq(prt); /* clear queue memory */ if(prt->linebuf != NULL){ erts_free(ERTS_ALC_T_LINEBUF, (void *) prt->linebuf); prt->linebuf = NULL; } - if (prt->bp != NULL) { - free_message_buffer(prt->bp); - prt->bp = NULL; - prt->data = am_undefined; - } + + erts_cleanup_port_data(prt); if (prt->psd) erts_free(ERTS_ALC_T_PRTSD, prt->psd); + ASSERT(prt->dist_entry == NULL); + kill_port(prt); /* * We don't want to send the closed message until after the * port has been removed from the port table (in kill_port()). */ - if (halt && (erts_smp_atomic32_dec_read_nob(&erts_halt_progress) == 0)) { - erts_smp_port_unlock(prt); /* We will exit and never return */ + if ((state & ERTS_PORT_SFLG_HALT) + && (erts_smp_atomic32_dec_read_nob(&erts_halt_progress) == 0)) { + erts_port_release(prt); /* We will exit and never return */ erl_exit_flush_async(erts_halt_code, ""); } if (is_internal_port(send_closed_port_id)) deliver_result(send_closed_port_id, connected_id, am_closed); - - ASSERT(prt->dist_entry == NULL); } void @@ -2033,7 +3482,7 @@ static void sweep_one_monitor(ErtsMonitor *mon, void *vpsc) if (!rp) { goto done; } - rmon = erts_remove_monitor(&(rp->monitors),mon->ref); + rmon = erts_remove_monitor(&ERTS_P_MONITORS(rp), mon->ref); erts_smp_proc_unlock(rp, ERTS_PROC_LOCK_LINK); if (rmon == NULL) { goto done; @@ -2087,7 +3536,7 @@ static void sweep_one_link(ErtsLink *lnk, void *vpsc) ASSERT(is_internal_pid(lnk->pid)); rp = erts_pid2proc(NULL, 0, lnk->pid, rp_locks); if (rp) { - ErtsLink *rlnk = erts_remove_link(&(rp->nlinks), psc->port); + ErtsLink *rlnk = erts_remove_link(&ERTS_P_LINKS(rp), psc->port); if (rlnk) { int xres = erts_send_exit_signal(NULL, @@ -2123,11 +3572,13 @@ static void sweep_one_link(ErtsLink *lnk, void *vpsc) * that is to kill a port till reason kill. Then the port is stopped. * */ -void -erts_do_exit_port(Port *p, Eterm from, Eterm reason) + +int +erts_deliver_port_exit(Port *p, Eterm from, Eterm reason, int send_closed) { ErtsLink *lnk; Eterm rreason; + erts_aint32_t state, set_state_flags; ERTS_SMP_CHK_NO_PROC_LOCKS; ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(p)); @@ -2140,73 +3591,82 @@ erts_do_exit_port(Port *p, Eterm from, Eterm reason) DTRACE_CHARBUF(port_str, DTRACE_TERM_BUF_SIZE); DTRACE_CHARBUF(rreason_str, 64); - erts_snprintf(from_str, sizeof(from_str), "%T", from); + erts_snprintf(from_str, sizeof(DTRACE_CHARBUF_NAME(from_str)), "%T", from); dtrace_port_str(p, port_str); - erts_snprintf(rreason_str, sizeof(rreason_str), "%T", rreason); + erts_snprintf(rreason_str, sizeof(DTRACE_CHARBUF_NAME(rreason_str)), "%T", rreason); DTRACE4(port_exit, from_str, port_str, p->name, rreason_str); } #endif - if ((p->status & (ERTS_PORT_SFLGS_DEAD - | ERTS_PORT_SFLG_EXITING - | ERTS_PORT_SFLG_IMMORTAL)) - || ((reason == am_normal) && - ((from != p->connected) && (from != p->id)))) { - return; - } + state = erts_atomic32_read_nob(&p->state); + if (state & (ERTS_PORT_SFLGS_DEAD + | ERTS_PORT_SFLG_EXITING + | ERTS_PORT_SFLG_CLOSING)) + return 0; + + if (reason == am_normal && from != ERTS_PORT_GET_CONNECTED(p) && from != p->common.id) + return 0; + + set_state_flags = ERTS_PORT_SFLG_EXITING; + if (send_closed) + set_state_flags |= ERTS_PORT_SFLG_SEND_CLOSED; + + erts_port_task_sched_enter_exiting_state(&p->sched); + + state = erts_atomic32_read_bor_mb(&p->state, set_state_flags); + state |= set_state_flags; if (IS_TRACED_FL(p, F_TRACE_PORTS)) { trace_port(p, am_closed, reason); } - erts_trace_check_exiting(p->id); + erts_trace_check_exiting(p->common.id); - /* - * Setting the port to not busy here, frees the list of pending - * processes and makes them runnable. - */ - set_busy_port((ErlDrvPort)internal_port_index(p->id), 0); + set_busy_port(ERTS_Port2ErlDrvPort(p), 0); - if (p->reg != NULL) - (void) erts_unregister_name(NULL, 0, p, p->reg->name); - - erts_port_status_bor_set(p, ERTS_PORT_SFLG_EXITING); + if (p->common.u.alive.reg != NULL) + (void) erts_unregister_name(NULL, 0, p, p->common.u.alive.reg->name); { - SweepContext sc = {p->id, rreason}; - lnk = p->nlinks; - p->nlinks = NULL; + SweepContext sc = {p->common.id, rreason}; + lnk = ERTS_P_LINKS(p); + ERTS_P_LINKS(p) = NULL; erts_sweep_links(lnk, &sweep_one_link, &sc); } DRV_MONITOR_LOCK_PDL(p); { - ErtsMonitor *moni = p->monitors; - p->monitors = NULL; + ErtsMonitor *moni = ERTS_P_MONITORS(p); + ERTS_P_MONITORS(p) = NULL; erts_sweep_monitors(moni, &sweep_one_monitor, NULL); } DRV_MONITOR_UNLOCK_PDL(p); - if ((p->status & ERTS_PORT_SFLG_DISTRIBUTION) && p->dist_entry) { + if ((state & ERTS_PORT_SFLG_DISTRIBUTION) && p->dist_entry) { erts_do_net_exits(p->dist_entry, rreason); erts_deref_dist_entry(p->dist_entry); - p->dist_entry = NULL; - erts_port_status_band_set(p, ~ERTS_PORT_SFLG_DISTRIBUTION); + p->dist_entry = NULL; + erts_atomic32_read_band_relb(&p->state, + ~ERTS_PORT_SFLG_DISTRIBUTION); } if ((reason != am_kill) && !is_port_ioq_empty(p)) { - erts_port_status_bandor_set(p, - ~ERTS_PORT_SFLG_EXITING, /* must turn it off */ - ERTS_PORT_SFLG_CLOSING); + /* must turn exiting flag off */ + erts_atomic32_read_bset_relb(&p->state, + (ERTS_PORT_SFLG_EXITING + | ERTS_PORT_SFLG_CLOSING), + ERTS_PORT_SFLG_CLOSING); flush_port(p); } else { terminate_port(p); } + + return 1; } /* About the states ERTS_PORT_SFLG_EXITING and ERTS_PORT_SFLG_CLOSING used above. ** -** ERTS_PORT_SFLG_EXITING is a recursion protection for erts_do_exit_port(). +** ERTS_PORT_SFLG_EXITING is a recursion protection for erts_deliver_port_exit(). ** It is unclear whether this state is necessary or not, it might be possible ** to merge it with ERTS_PORT_SFLG_CLOSING. ERTS_PORT_SFLG_EXITING only persists ** over a section of sequential (but highly recursive) code. @@ -2222,236 +3682,894 @@ erts_do_exit_port(Port *p, Eterm from, Eterm reason) ** {PID, close} ** {PID, {command, io-list}} ** {PID, {connect, New_PID}} -** -** */ -void erts_port_command(Process *proc, - Eterm caller_id, - Port *port, - Eterm command) +ErtsPortOpResult +erts_port_command(Process *c_p, + int flags, + Port *port, + Eterm command, + Eterm *refp) { Eterm *tp; - Eterm pid; - if (!port) - return; + ASSERT(port); - erts_smp_proc_unlock(proc, ERTS_PROC_LOCK_MAIN); - ERTS_SMP_CHK_NO_PROC_LOCKS; - ASSERT(!INVALID_PORT(port, port->id)); + flags |= ERTS_PORT_SIG_FLG_BANG_OP; + if (!erts_port_synchronous_ops) { + flags |= ERTS_PORT_SIG_FLG_ASYNC; + refp = NULL; + } if (is_tuple_arity(command, 2)) { + Eterm cntd; tp = tuple_val(command); - if ((pid = port->connected) == tp[1]) { - /* PID must be connected */ + cntd = tp[1]; + if (is_internal_pid(cntd)) { if (tp[2] == am_close) { - erts_port_status_bor_set(port, ERTS_PORT_SFLG_SEND_CLOSED); - erts_do_exit_port(port, pid, am_normal); - -#ifdef USE_VM_PROBES - if(DTRACE_ENABLED(port_command)) { - DTRACE_FORMAT_COMMON_PROC_AND_PORT(proc, port) - DTRACE4(port_command, process_str, port_str, port->name, "close"); - } -#endif - goto done; + flags &= ~ERTS_PORT_SIG_FLG_NOSUSPEND; + return erts_port_exit(c_p, flags, port, cntd, am_normal, refp); } else if (is_tuple_arity(tp[2], 2)) { tp = tuple_val(tp[2]); if (tp[1] == am_command) { - if (erts_write_to_port(caller_id, port, tp[2]) == 0) - goto done; - } else if ((tp[1] == am_connect) && is_internal_pid(tp[2])) { -#ifdef USE_VM_PROBES - if(DTRACE_ENABLED(port_command)) { - DTRACE_FORMAT_COMMON_PROC_AND_PORT(proc, port) - DTRACE4(port_command, process_str, port_str, port->name, "connect"); - } -#endif - port->connected = tp[2]; - deliver_result(port->id, pid, am_connected); - goto done; + return erts_port_output(c_p, flags, port, cntd, tp[2], refp); + } + else if (tp[1] == am_connect) { + flags &= ~ERTS_PORT_SIG_FLG_NOSUSPEND; + return erts_port_connect(c_p, flags, port, cntd, tp[2], refp); } } } } - { - ErtsProcLocks rp_locks = ERTS_PROC_LOCKS_XSIG_SEND; - Process* rp = erts_pid2proc_opt(NULL, 0, - port->connected, rp_locks, - ERTS_P2P_FLG_SMP_INC_REFC); - if (rp) { - (void) erts_send_exit_signal(NULL, - port->id, - rp, - &rp_locks, - am_badsig, - NIL, - NULL, - 0); - erts_smp_proc_unlock(rp, rp_locks); - erts_smp_proc_dec_refc(rp); - } + /* badsig */ + flags &= ~ERTS_PORT_SIG_FLG_NOSUSPEND; + return bad_port_signal(c_p, flags, port, c_p->common.id, refp, am_command); +} +static ERTS_INLINE ErtsPortOpResult +call_driver_control(Eterm caller, + Port *prt, + unsigned int command, + char *bufp, + ErlDrvSizeT size, + char **resp_bufp, + ErlDrvSizeT *from_size) +{ + ErlDrvSSizeT cres; + + if (!prt->drv_ptr->control) + return ERTS_PORT_OP_BADARG; + + +#ifdef USE_VM_PROBES + if (DTRACE_ENABLED(port_control) || DTRACE_ENABLED(driver_control)) { + DTRACE_FORMAT_COMMON_PID_AND_PORT(caller, prt); + DTRACE4(port_control, process_str, port_str, prt->name, command); + DTRACE5(driver_control, process_str, port_str, prt->name, + command, size); } - done: - erts_smp_proc_lock(proc, ERTS_PROC_LOCK_MAIN); +#endif + + prt->caller = caller; + cres = prt->drv_ptr->control((ErlDrvData) prt->drv_data, + command, + bufp, + size, + resp_bufp, + *from_size); + prt->caller = NIL; + + if (cres < 0) + return ERTS_PORT_OP_BADARG; + + *from_size = (ErlDrvSizeT) cres; + + return ERTS_PORT_OP_DONE; } -/* - * Control a port synchronously. - * Returns either a list or a binary. - */ -Eterm -erts_port_control(Process* p, Port* prt, Uint command, Eterm iolist) -{ - byte* to_port = NULL; /* Buffer to write to port. */ - /* Initialization is for shutting up - warning about use before set. */ - Uint to_len = 0; /* Length of buffer. */ - int must_free = 0; /* True if the buffer should be freed. */ - char port_result[ERL_ONHEAP_BIN_LIMIT]; /* Default buffer for result from port. */ - char* port_resp; /* Pointer to result buffer. */ - ErlDrvSSizeT n; - ErlDrvSSizeT (*control) - (ErlDrvData, unsigned, char*, ErlDrvSizeT, char**, ErlDrvSizeT); - int fpe_was_unmasked; +static void +cleanup_scheduled_control(Binary *binp, char *bufp) +{ + if (binp) { + if (erts_refc_dectest(&binp->refc, 0) == 0) + erts_bin_free(binp); + } + else { + if (bufp) + erts_free(ERTS_ALC_T_DRV_CTRL_DATA, bufp); + } +} - ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt)); - if ((control = prt->drv_ptr->control) == NULL) { - return THE_NON_VALUE; +static ERTS_INLINE Uint +port_control_result_size(int control_flags, + char *resp_bufp, + ErlDrvSizeT *resp_size, + char *pre_alloc_buf) +{ + if (!resp_bufp) + return (Uint) 0; + + if (control_flags & PORT_CONTROL_FLAG_BINARY) { + if (resp_bufp != pre_alloc_buf) { + ErlDrvBinary *dbin = (ErlDrvBinary *) resp_bufp; + *resp_size = dbin->orig_size; + if (*resp_size > ERL_ONHEAP_BIN_LIMIT) + return PROC_BIN_SIZE; + } + ASSERT(*resp_size <= ERL_ONHEAP_BIN_LIMIT); + return (Uint) heap_bin_size((*resp_size)); } - /* - * Convert the iolist to a buffer, pointed to by to_port, - * and with its length in to_len. - */ - if (is_binary(iolist) && binary_bitoffset(iolist) == 0) { + return (Uint) 2*(*resp_size); +} + +static ERTS_INLINE Eterm +write_port_control_result(int control_flags, + char *resp_bufp, + ErlDrvSizeT resp_size, + char *pre_alloc_buf, + Eterm **hpp, + ErlHeapFragment *bp, + ErlOffHeap *ohp) +{ + Eterm res; + if (!resp_bufp) + return NIL; + if (control_flags & PORT_CONTROL_FLAG_BINARY) { + /* Binary result */ + ErlDrvBinary *dbin; + ErlHeapBin *hbin; + + if (resp_bufp == pre_alloc_buf) + dbin = NULL; + else { + dbin = (ErlDrvBinary *) resp_bufp; + if (dbin->orig_size > ERL_ONHEAP_BIN_LIMIT) { + ProcBin* pb = (ProcBin *) *hpp; + *hpp += PROC_BIN_SIZE; + pb->thing_word = HEADER_PROC_BIN; + pb->size = dbin->orig_size; + pb->next = ohp->first; + ohp->first = (struct erl_off_heap_header *) pb; + pb->val = ErlDrvBinary2Binary(dbin); + pb->bytes = (byte*) dbin->orig_bytes; + pb->flags = 0; + OH_OVERHEAD(ohp, dbin->orig_size / sizeof(Eterm)); + return make_binary(pb); + } + resp_bufp = dbin->orig_bytes; + resp_size = dbin->orig_size; + } + + hbin = (ErlHeapBin *) *hpp; + *hpp += heap_bin_size(resp_size); + ASSERT(resp_size <= ERL_ONHEAP_BIN_LIMIT); + hbin->thing_word = header_heap_bin(resp_size); + hbin->size = resp_size; + sys_memcpy(hbin->data, resp_bufp, resp_size); + if (dbin) + driver_free_binary(dbin); + return make_binary(hbin); + } + + /* List result */ + res = buf_to_intlist(hpp, resp_bufp, resp_size, NIL); + if (resp_bufp != pre_alloc_buf) + driver_free(resp_bufp); + return res; +} + +static int +port_sig_control(Port *prt, + erts_aint32_t state, + int op, + ErtsProc2PortSigData *sigdp) +{ + ASSERT(sigdp->flags & ERTS_P2P_SIG_DATA_FLG_REPLY); + + if (op == ERTS_PROC2PORT_SIG_EXEC) { + char resp_buf[ERL_ONHEAP_BIN_LIMIT]; + ErlDrvSizeT resp_size = sizeof(resp_buf); + char *resp_bufp = &resp_buf[0]; + ErtsPortOpResult res; + + res = call_driver_control(sigdp->caller, + prt, + sigdp->u.control.command, + sigdp->u.control.bufp, + sigdp->u.control.size, + &resp_bufp, + &resp_size); + + if (res == ERTS_PORT_OP_DONE) { + Eterm msg; + Eterm *hp, *hp_start; + ErlHeapFragment *bp; + ErlOffHeap *ohp; + Process *rp; + ErtsProcLocks rp_locks = 0; + Uint hsz; + int control_flags; + + rp = erts_proc_lookup_raw(sigdp->caller); + if (!rp) + goto done; + + control_flags = prt->control_flags; + + hsz = ERTS_QUEUE_PORT_SCHED_OP_REPLY_SIZE; + hsz += port_control_result_size(control_flags, + resp_bufp, + &resp_size, + &resp_buf[0]); + + hp_start = hp = erts_alloc_message_heap(hsz, + &bp, + &ohp, + rp, + &rp_locks); + + msg = write_port_control_result(control_flags, + resp_bufp, + resp_size, + &resp_buf[0], + &hp, + bp, + ohp); + + queue_port_sched_op_reply(rp, + &rp_locks, + hp_start, + hp, + hsz, + bp, + sigdp->ref, + msg); + + if (rp_locks) + erts_smp_proc_unlock(rp, rp_locks); + goto done; + } + } + + /* failure */ + + port_sched_op_reply(sigdp->caller, sigdp->ref, am_badarg); + +done: + + cleanup_scheduled_control(sigdp->u.control.binp, + sigdp->u.control.bufp); + + return ERTS_PORT_REDS_CONTROL; +} + + +ErtsPortOpResult +erts_port_control(Process* c_p, + Port *prt, + unsigned int command, + Eterm data, + Eterm *retvalp) +{ + ErtsPortOpResult res; + char *bufp = NULL; + ErlDrvSizeT size = 0; + int try_call; + int tmp_alloced = 0; + erts_aint32_t sched_flags; + Binary *binp; + int copy; + ErtsProc2PortSigData *sigdp; + + sched_flags = erts_smp_atomic32_read_nob(&prt->sched.flags); + if (sched_flags & ERTS_PTS_FLG_EXIT) + return ERTS_PORT_OP_BADARG; + + try_call = !(sched_flags & ERTS_PTS_FLGS_FORCE_SCHEDULE_OP); + + if (is_binary(data) && binary_bitoffset(data) == 0) { + byte *bytep; ERTS_DECLARE_DUMMY(Uint bitoffs); ERTS_DECLARE_DUMMY(Uint bitsize); - ERTS_GET_BINARY_BYTES(iolist, to_port, bitoffs, bitsize); - to_len = binary_size(iolist); + ERTS_GET_BINARY_BYTES(data, bytep, bitoffs, bitsize); + bufp = (char *) bytep; + size = binary_size(data); } else { int r; - /* Try with an 8KB buffer first (will often be enough I guess). */ - to_len = 8*1024; - to_port = erts_alloc(ERTS_ALC_T_TMP, to_len); - must_free = 1; + if (!try_call) { + if (erts_iolist_size(data, &size)) + return ERTS_PORT_OP_BADARG; + bufp = erts_alloc(ERTS_ALC_T_DRV_CTRL_DATA, size); + r = erts_iolist_to_buf(data, bufp, size); + ASSERT(r == 0); + } + else { + /* Try with an 8KB buffer first (will often be enough I guess). */ + size = 8*1024; + bufp = erts_alloc(ERTS_ALC_T_TMP, size); + tmp_alloced = 1; + + r = erts_iolist_to_buf(data, bufp, size); + if (ERTS_IOLIST_TO_BUF_SUCCEEDED(r)) { + size -= r; + } else { + if (r == ERTS_IOLIST_TO_BUF_TYPE_ERROR) { /* Type error */ + erts_free(ERTS_ALC_T_TMP, bufp); + return ERTS_PORT_OP_BADARG; + } + else { + ASSERT(r == ERTS_IOLIST_TO_BUF_OVERFLOW); /* Overflow */ + erts_free(ERTS_ALC_T_TMP, bufp); + if (erts_iolist_size(data, &size)) + return ERTS_PORT_OP_BADARG; /* Type error */ + } + bufp = erts_alloc(ERTS_ALC_T_TMP, size); + r = erts_iolist_to_buf(data, bufp, size); + ASSERT(r == 0); + } + } + } - /* - * In versions before R10B, we used to reserve random - * amounts of extra memory. From R10B, we allocate the - * exact amount. - */ - r = io_list_to_buf(iolist, (char*) to_port, to_len); - if (r >= 0) { - to_len -= r; - } else if (r == -2) { /* Type error */ - erts_free(ERTS_ALC_T_TMP, (void *) to_port); - return THE_NON_VALUE; - } else { - ASSERT(r == -1); /* Overflow */ - erts_free(ERTS_ALC_T_TMP, (void *) to_port); - if (erts_iolist_size(iolist, &to_len)) { /* Type error */ - return THE_NON_VALUE; + if (try_call) { + char resp_buf[ERL_ONHEAP_BIN_LIMIT]; + char* resp_bufp = &resp_buf[0]; + ErlDrvSizeT resp_size = sizeof(resp_buf); + ErtsTryImmDrvCallResult try_call_res; + ErtsTryImmDrvCallState try_call_state + = ERTS_INIT_TRY_IMM_DRV_CALL_STATE( + c_p, + prt, + ERTS_PORT_SFLGS_INVALID_LOOKUP, + 0, + 0, + am_control); + + try_call_res = try_imm_drv_call(&try_call_state); + switch (try_call_res) { + case ERTS_TRY_IMM_DRV_CALL_OK: { + Eterm *hp; + Uint hsz; + int control_flags; + + res = call_driver_control(c_p->common.id, + prt, + command, + bufp, + size, + &resp_bufp, + &resp_size); + finalize_imm_drv_call(&try_call_state); + if (tmp_alloced) + erts_free(ERTS_ALC_T_TMP, bufp); + if (res == ERTS_PORT_OP_BADARG) { + return ERTS_PORT_OP_BADARG; } - must_free = 1; - to_port = erts_alloc(ERTS_ALC_T_TMP, to_len); - r = io_list_to_buf(iolist, (char*) to_port, to_len); - ASSERT(r == 0); + + control_flags = prt->control_flags; + + hsz = port_control_result_size(control_flags, + resp_bufp, + &resp_size, + &resp_buf[0]); + hp = HAlloc(c_p, hsz); + *retvalp = write_port_control_result(control_flags, + resp_bufp, + resp_size, + &resp_buf[0], + &hp, + NULL, + &c_p->off_heap); + BUMP_REDS(c_p, ERTS_PORT_REDS_CONTROL); + return ERTS_PORT_OP_DONE; + } + case ERTS_TRY_IMM_DRV_CALL_INVALID_PORT: + if (tmp_alloced) + erts_free(ERTS_ALC_T_TMP, bufp); + return ERTS_PORT_OP_BADARG; + default: + /* Schedule control() call instead... */ + break; } } - prt->caller = p->id; /* Internal pid */ + /* Convert data into something that can be scheduled */ - erts_smp_proc_unlock(p, ERTS_PROC_LOCK_MAIN); - ERTS_SMP_CHK_NO_PROC_LOCKS; + copy = tmp_alloced; + + binp = NULL; + + if (is_binary(data) && binary_bitoffset(data) == 0) { + Eterm *ebinp = binary_val_rel(data, NULL); + ASSERT(!tmp_alloced); + if (*ebinp == HEADER_SUB_BIN) + ebinp = binary_val_rel(((ErlSubBin *) ebinp)->orig, NULL); + if (*ebinp != HEADER_PROC_BIN) + copy = 1; + else { + binp = ((ProcBin *) ebinp)->val; + ASSERT(bufp <= bufp + size); + ASSERT(binp->orig_bytes <= bufp + && bufp + size <= binp->orig_bytes + binp->orig_size); + erts_refc_inc(&binp->refc, 1); + } + } + + if (copy) { + char *old_bufp = bufp; + bufp = erts_alloc(ERTS_ALC_T_DRV_CTRL_DATA, size); + sys_memcpy(bufp, old_bufp, size); + if (tmp_alloced) + erts_free(ERTS_ALC_T_TMP, old_bufp); + } + + sigdp = erts_port_task_alloc_p2p_sig_data(); + sigdp->flags = ERTS_P2P_SIG_TYPE_CONTROL; + sigdp->u.control.binp = binp; + sigdp->u.control.command = command; + sigdp->u.control.bufp = bufp; + sigdp->u.control.size = size; + + res = erts_schedule_proc2port_signal(c_p, + prt, + c_p->common.id, + retvalp, + sigdp, + 0, + NULL, + port_sig_control); + if (res != ERTS_PORT_OP_SCHEDULED) { + cleanup_scheduled_control(binp, bufp); + return ERTS_PORT_OP_BADARG; + } + return res; +} + +static ERTS_INLINE ErtsPortOpResult +call_driver_call(Eterm caller, + Port *prt, + unsigned int command, + char *bufp, + ErlDrvSizeT size, + char **resp_bufp, + ErlDrvSizeT *from_size, + unsigned *ret_flagsp) +{ + ErlDrvSSizeT cres; + + if (!prt->drv_ptr->call) + return ERTS_PORT_OP_BADARG; #ifdef USE_VM_PROBES - if (DTRACE_ENABLED(port_control) || DTRACE_ENABLED(driver_control)) { - DTRACE_FORMAT_COMMON_PROC_AND_PORT(p, prt); - DTRACE4(port_control, process_str, port_str, prt->name, command); - DTRACE5(driver_control, process_str, port_str, prt->name, - command, to_len); + if (DTRACE_ENABLED(driver_call)) { + DTRACE_CHARBUF(process_str, DTRACE_TERM_BUF_SIZE); + DTRACE_CHARBUF(port_str, DTRACE_TERM_BUF_SIZE); + + dtrace_pid_str(caller, process_str); + dtrace_port_str(prt, port_str); + DTRACE5(driver_call, process_str, port_str, prt->name, command, size); } #endif - /* - * Call the port's control routine. - */ + prt->caller = caller; + cres = prt->drv_ptr->call((ErlDrvData) prt->drv_data, + command, + bufp, + size, + resp_bufp, + *from_size, + ret_flagsp); + prt->caller = NIL; - port_resp = port_result; - fpe_was_unmasked = erts_block_fpe(); - n = control((ErlDrvData)prt->drv_data, command, (char*)to_port, to_len, - &port_resp, sizeof(port_result)); - erts_unblock_fpe(fpe_was_unmasked); - if (must_free) { - erts_free(ERTS_ALC_T_TMP, (void *) to_port); + if (cres <= 0 + || ((byte) (*resp_bufp)[0]) != VERSION_MAGIC) + return ERTS_PORT_OP_BADARG; + + *from_size = (ErlDrvSizeT) cres; + + return ERTS_PORT_OP_DONE; +} + + +static +void cleanup_scheduled_call(char *bufp) +{ + if (bufp) + erts_free(ERTS_ALC_T_DRV_CALL_DATA, bufp); +} + +static int +port_sig_call(Port *prt, + erts_aint32_t state, + int op, + ErtsProc2PortSigData *sigdp) +{ + char resp_buf[256]; + ErlDrvSizeT resp_size = sizeof(resp_buf); + char *resp_bufp = &resp_buf[0]; + unsigned ret_flags = 0U; + + + ASSERT(sigdp->flags & ERTS_P2P_SIG_DATA_FLG_REPLY); + + if (op == ERTS_PROC2PORT_SIG_EXEC) { + ErtsPortOpResult res; + + res = call_driver_call(sigdp->caller, + prt, + sigdp->u.call.command, + sigdp->u.call.bufp, + sigdp->u.call.size, + &resp_bufp, + &resp_size, + &ret_flags); + + if (res == ERTS_PORT_OP_DONE) { + Eterm msg; + Eterm *hp; + ErlHeapFragment *bp; + ErlOffHeap *ohp; + Process *rp; + ErtsProcLocks rp_locks = 0; + Sint hsz; + + rp = erts_proc_lookup_raw(sigdp->caller); + if (!rp) + goto done; + + hsz = erts_decode_ext_size((byte *) resp_bufp, resp_size); + if (hsz >= 0) { + Eterm *hp_start; + byte *endp; + + hsz += 3; /* ok tuple */ + hsz += ERTS_QUEUE_PORT_SCHED_OP_REPLY_SIZE; + + hp_start = hp = erts_alloc_message_heap(hsz, + &bp, + &ohp, + rp, + &rp_locks); + endp = (byte *) resp_bufp; + msg = erts_decode_ext(&hp, ohp, &endp); + if (is_value(msg)) { + msg = TUPLE2(hp, am_ok, msg); + hp += 3; + + queue_port_sched_op_reply(rp, + &rp_locks, + hp_start, + hp, + hsz, + bp, + sigdp->ref, + msg); + + if (rp_locks) + erts_smp_proc_unlock(rp, rp_locks); + goto done; + } + if (bp) + free_message_buffer(bp); + if (rp_locks) + erts_smp_proc_unlock(rp, rp_locks); + } + } } - prt->caller = NIL; -#ifdef ERTS_SMP - if (prt->xports) - erts_smp_xports_unlock(prt); - ASSERT(!prt->xports); -#endif - erts_smp_proc_lock(p, ERTS_PROC_LOCK_MAIN); - /* - * Handle the result. - */ + port_sched_op_reply(sigdp->caller, sigdp->ref, am_badarg); + +done: + + if (resp_bufp != &resp_buf[0] && !(ret_flags & DRIVER_CALL_KEEP_BUFFER)) + driver_free(resp_bufp); - if (n < 0) { - return THE_NON_VALUE; + cleanup_scheduled_call(sigdp->u.call.bufp); + + return ERTS_PORT_REDS_CALL; +} + + +ErtsPortOpResult +erts_port_call(Process* c_p, + Port *prt, + unsigned int command, + Eterm data, + Eterm *retvalp) +{ + ErtsPortOpResult res; + char input_buf[256]; + char *bufp; + byte *endp; + ErlDrvSizeT size; + int try_call; + erts_aint32_t sched_flags; + ErtsProc2PortSigData *sigdp; + + sched_flags = erts_smp_atomic32_read_nob(&prt->sched.flags); + if (sched_flags & ERTS_PTS_FLG_EXIT) { + return ERTS_PORT_OP_BADARG; } - if ((prt->control_flags & PORT_CONTROL_FLAG_BINARY) == 0) { /* List result */ - Eterm ret; - Eterm* hp = HAlloc(p, 2*n); - ret = buf_to_intlist(&hp, port_resp, n, NIL); - if (port_resp != port_result) { - driver_free(port_resp); + try_call = !(sched_flags & ERTS_PTS_FLGS_FORCE_SCHEDULE_OP); + + size = erts_encode_ext_size(data); + + if (!try_call) + bufp = erts_alloc(ERTS_ALC_T_DRV_CALL_DATA, size); + else if (size <= sizeof(input_buf)) + bufp = &input_buf[0]; + else + bufp = erts_alloc(ERTS_ALC_T_TMP, size); + + endp = (byte *) bufp; + erts_encode_ext(data, &endp); + + if (endp - (byte *) bufp > size) + ERTS_INTERNAL_ERROR("erts_internal:port_call() - Buffer overflow"); + + size = endp - (byte *) bufp; + + if (try_call) { + char resp_buf[255]; + char* resp_bufp = &resp_buf[0]; + ErlDrvSizeT resp_size = sizeof(resp_buf); + ErtsTryImmDrvCallResult try_call_res; + ErtsTryImmDrvCallState try_call_state + = ERTS_INIT_TRY_IMM_DRV_CALL_STATE( + c_p, + prt, + ERTS_PORT_SFLGS_INVALID_LOOKUP, + 0, + 0, + am_call); + + try_call_res = try_imm_drv_call(&try_call_state); + switch (try_call_res) { + case ERTS_TRY_IMM_DRV_CALL_OK: { + Eterm *hp, *hp_end; + Sint hsz; + unsigned ret_flags = 0U; + Eterm term; + + res = call_driver_call(c_p->common.id, + prt, + command, + bufp, + size, + &resp_bufp, + &resp_size, + &ret_flags); + + finalize_imm_drv_call(&try_call_state); + if (bufp != &input_buf[0]) + erts_free(ERTS_ALC_T_TMP, bufp); + if (res == ERTS_PORT_OP_BADARG) + return ERTS_PORT_OP_BADARG; + hsz = erts_decode_ext_size((byte *) resp_bufp, resp_size); + if (hsz < 0) + return ERTS_PORT_OP_BADARG; + hsz += 3; + hp = HAlloc(c_p, hsz); + hp_end = hp + hsz; + endp = (byte *) resp_bufp; + term = erts_decode_ext(&hp, &MSO(c_p), &endp); + if (term == THE_NON_VALUE) + return ERTS_PORT_OP_BADARG; + *retvalp = TUPLE2(hp, am_ok, term); + hp += 3; + HRelease(c_p, hp_end, hp); + if (resp_bufp != &resp_buf[0] + && !(ret_flags & DRIVER_CALL_KEEP_BUFFER)) + driver_free(resp_bufp); + BUMP_REDS(c_p, ERTS_PORT_REDS_CALL); + return ERTS_PORT_OP_DONE; } - return ret; - } - else if (port_resp == NULL) { - return NIL; - } - else { /* Binary result */ - ErlDrvBinary *dbin; - ErlHeapBin *hbin; - if (port_resp != port_result) { - dbin = (ErlDrvBinary *) port_resp; - if (dbin->orig_size > ERL_ONHEAP_BIN_LIMIT) { - ProcBin* pb = (ProcBin *) HAlloc(p, PROC_BIN_SIZE); - pb->thing_word = HEADER_PROC_BIN; - pb->size = dbin->orig_size; - pb->next = MSO(p).first; - MSO(p).first = (struct erl_off_heap_header*)pb; - pb->val = ErlDrvBinary2Binary(dbin); - pb->bytes = (byte*) dbin->orig_bytes; - pb->flags = 0; - OH_OVERHEAD(&(MSO(p)), dbin->orig_size / sizeof(Eterm)); - return make_binary(pb); - } - port_resp = dbin->orig_bytes; - n = dbin->orig_size; - } else { - dbin = NULL; + case ERTS_TRY_IMM_DRV_CALL_INVALID_PORT: + if (bufp != &input_buf[0]) + erts_free(ERTS_ALC_T_TMP, bufp); + return ERTS_PORT_OP_BADARG; + default: + /* Schedule call() call instead... */ + break; } - hbin = (ErlHeapBin*) HAlloc(p, heap_bin_size(n)); - ASSERT(n <= ERL_ONHEAP_BIN_LIMIT); - hbin->thing_word = header_heap_bin(n); - hbin->size = n; - sys_memcpy(hbin->data, port_resp, n); - if (dbin != NULL) { - driver_free_binary(dbin); + } + + /* Convert data into something that can be scheduled */ + + if (bufp == &input_buf[0] || try_call) { + char *new_bufp = erts_alloc(ERTS_ALC_T_DRV_CALL_DATA, size); + sys_memcpy(new_bufp, bufp, size); + if (bufp != &input_buf[0]) + erts_free(ERTS_ALC_T_TMP, bufp); + bufp = new_bufp; + } + + sigdp = erts_port_task_alloc_p2p_sig_data(); + sigdp->flags = ERTS_P2P_SIG_TYPE_CALL; + sigdp->u.call.command = command; + sigdp->u.call.bufp = bufp; + sigdp->u.call.size = size; + + res = erts_schedule_proc2port_signal(c_p, + prt, + c_p->common.id, + retvalp, + sigdp, + 0, + NULL, + port_sig_call); + if (res != ERTS_PORT_OP_SCHEDULED) { + cleanup_scheduled_call(bufp); + return ERTS_PORT_OP_BADARG; + } + return res; +} + +static Eterm +make_port_info_term(Eterm **hpp_start, + Eterm **hpp, + Uint *hszp, + ErlHeapFragment **bpp, + Port *prt, + Eterm item) +{ + ErlOffHeap *ohp; + + if (is_value(item)) { + if (erts_bld_port_info(NULL, NULL, hszp, prt, item) == am_false) + return THE_NON_VALUE; + if (*hszp) { + *bpp = new_message_buffer(*hszp); + *hpp_start = *hpp = (*bpp)->mem; + ohp = &(*bpp)->off_heap; } - return make_binary(hbin); + else { + *bpp = NULL; + *hpp_start = *hpp = NULL; + ohp = NULL; + } + return erts_bld_port_info(hpp, ohp, NULL, prt, item); + } + else { + int i; + int len; + int start; + static Eterm item[] = ERTS_PORT_INFO_1_ITEMS; + static Eterm value[sizeof(item)/sizeof(item[0])]; + + start = 0; + len = sizeof(item)/sizeof(item[0]); + + for (i = start; i < sizeof(item)/sizeof(item[0]); i++) { + ASSERT(is_atom(item[i])); + value[i] = erts_bld_port_info(NULL, NULL, hszp, prt, item[i]); + } + + if (value[0] == am_undefined) { + start++; + len--; + } + + erts_bld_list(NULL, hszp, len, &value[start]); + + *bpp = new_message_buffer(*hszp); + *hpp_start = *hpp = (*bpp)->mem; + ohp = &(*bpp)->off_heap; + + for (i = start; i < sizeof(item)/sizeof(item[0]); i++) + value[i] = erts_bld_port_info(hpp, ohp, NULL, prt, item[i]); + + return erts_bld_list(hpp, NULL, len, &value[start]); } } +static int +port_sig_info(Port *prt, + erts_aint32_t state, + int op, + ErtsProc2PortSigData *sigdp) +{ + ASSERT(sigdp->flags & ERTS_P2P_SIG_DATA_FLG_REPLY); + if (op != ERTS_PROC2PORT_SIG_EXEC) + port_sched_op_reply(sigdp->caller, sigdp->ref, am_undefined); + else { + Eterm *hp, *hp_start; + Uint hsz; + ErlHeapFragment *bp; + Eterm value; + Process *rp; + ErtsProcLocks rp_locks = 0; + + rp = erts_proc_lookup_raw(sigdp->caller); + if (!rp) + return ERTS_PORT_REDS_INFO; + + hsz = ERTS_QUEUE_PORT_SCHED_OP_REPLY_SIZE; + value = make_port_info_term(&hp_start, + &hp, + &hsz, + &bp, + prt, + sigdp->u.info.item); + if (is_value(value)) { + queue_port_sched_op_reply(rp, + &rp_locks, + hp_start, + hp, + hsz, + bp, + sigdp->ref, + value); + } + if (rp_locks) + erts_smp_proc_unlock(rp, rp_locks); + } + return ERTS_PORT_REDS_INFO; +} + +ErtsPortOpResult +erts_port_info(Process* c_p, + Port *prt, + Eterm item, + Eterm *retvalp) +{ + ErtsProc2PortSigData *sigdp; + ErtsTryImmDrvCallResult try_call_res; + ErtsTryImmDrvCallState try_call_state + = ERTS_INIT_TRY_IMM_DRV_CALL_STATE( + c_p, + prt, + ERTS_PORT_SFLGS_INVALID_LOOKUP, + 0, + 0, + am_info); + + try_call_res = try_imm_drv_call(&try_call_state); + switch (try_call_res) { + case ERTS_TRY_IMM_DRV_CALL_OK: { + Eterm *hp, *hp_start; + ErlHeapFragment *bp; + Uint hsz = 0; + Eterm value = make_port_info_term(&hp_start, &hp, &hsz, &bp, prt, item); + finalize_imm_drv_call(&try_call_state); + if (is_non_value(value)) + return ERTS_PORT_OP_BADARG; + else if (is_immed(value)) + *retvalp = value; + else { + Uint used_h_size = hp - hp_start; + hp = HAlloc(c_p, used_h_size); + *retvalp = copy_struct(value, used_h_size, &hp, &MSO(c_p)); + free_message_buffer(bp); + } + BUMP_REDS(c_p, ERTS_PORT_REDS_INFO); + return ERTS_PORT_OP_DONE; + } + case ERTS_TRY_IMM_DRV_CALL_INVALID_PORT: + return ERTS_PORT_OP_DROPPED; + case ERTS_TRY_IMM_DRV_CALL_INVALID_SCHED_FLAGS: + case ERTS_TRY_IMM_DRV_CALL_BUSY_LOCK: + /* Schedule call instead... */ + break; + } + + sigdp = erts_port_task_alloc_p2p_sig_data(); + sigdp->flags = ERTS_P2P_SIG_TYPE_INFO; + sigdp->u.info.item = item; + + return erts_schedule_proc2port_signal(c_p, + prt, + c_p->common.id, + retvalp, + sigdp, + 0, + NULL, + port_sig_info); +} + typedef struct { int to; void *arg; @@ -2470,39 +4588,39 @@ static void prt_one_lnk(ErtsLink *lnk, void *vprtd) } void -print_port_info(int to, void *arg, int i) +print_port_info(Port *p, int to, void *arg) { - Port* p = &erts_port[i]; + erts_aint32_t state = erts_atomic32_read_nob(&p->state); - if (p->status & ERTS_PORT_SFLGS_DEAD) + if (state & ERTS_PORT_SFLGS_DEAD) return; - erts_print(to, arg, "=port:%T\n", p->id); - erts_print(to, arg, "Slot: %d\n", i); - if (p->status & ERTS_PORT_SFLG_CONNECTED) { - erts_print(to, arg, "Connected: %T", p->connected); + erts_print(to, arg, "=port:%T\n", p->common.id); + erts_print(to, arg, "Slot: %d\n", internal_port_index(p->common.id)); + if (state & ERTS_PORT_SFLG_CONNECTED) { + erts_print(to, arg, "Connected: %T", ERTS_PORT_GET_CONNECTED(p)); erts_print(to, arg, "\n"); } - if (p->nlinks != NULL) { + if (ERTS_P_LINKS(p)) { prt_one_lnk_data prtd; prtd.to = to; prtd.arg = arg; erts_print(to, arg, "Links: "); - erts_doforall_links(p->nlinks, &prt_one_lnk, &prtd); + erts_doforall_links(ERTS_P_LINKS(p), &prt_one_lnk, &prtd); erts_print(to, arg, "\n"); } - if (p->monitors != NULL) { + if (ERTS_P_MONITORS(p)) { prt_one_lnk_data prtd; prtd.to = to; prtd.arg = arg; erts_print(to, arg, "Monitors: "); - erts_doforall_monitors(p->monitors, &prt_one_monitor, &prtd); + erts_doforall_monitors(ERTS_P_MONITORS(p), &prt_one_monitor, &prtd); erts_print(to, arg, "\n"); } - if (p->reg != NULL) - erts_print(to, arg, "Registered as: %T\n", p->reg->name); + if (p->common.u.alive.reg != NULL) + erts_print(to, arg, "Registered as: %T\n", p->common.u.alive.reg->name); if (p->drv_ptr == &fd_driver) { erts_print(to, arg, "Port is UNIX fd not opened by emulator: %s\n", p->name); @@ -2516,109 +4634,143 @@ print_port_info(int to, void *arg, int i) } void -set_busy_port(ErlDrvPort port_num, int on) +set_busy_port(ErlDrvPort dprt, int on) { + Port *prt; + erts_aint32_t flags; + #ifdef USE_VM_PROBES DTRACE_CHARBUF(port_str, 16); #endif ERTS_SMP_CHK_NO_PROC_LOCKS; - ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(&erts_port[port_num])); + prt = erts_drvport2port(dprt); + if (prt == ERTS_INVALID_ERL_DRV_PORT) + return; if (on) { - erts_port_status_bor_set(&erts_port[port_num], - ERTS_PORT_SFLG_PORT_BUSY); + flags = erts_smp_atomic32_read_bor_acqb(&prt->sched.flags, + ERTS_PTS_FLG_BUSY_PORT); + if (flags & ERTS_PTS_FLG_BUSY_PORT) + return; /* Already busy */ + + if (flags & ERTS_PTS_FLG_HAVE_NS_TASKS) + erts_port_task_abort_nosuspend_tasks(prt); + #ifdef USE_VM_PROBES if (DTRACE_ENABLED(port_busy)) { - erts_snprintf(port_str, sizeof(port_str), - "%T", erts_port[port_num].id); + erts_snprintf(port_str, sizeof(DTRACE_CHARBUF_NAME(port_str)), + "%T", prt->common.id); DTRACE1(port_busy, port_str); } #endif } else { - ErtsProcList* plp = erts_port[port_num].suspended; - erts_port_status_band_set(&erts_port[port_num], - ~ERTS_PORT_SFLG_PORT_BUSY); - erts_port[port_num].suspended = NULL; + flags = erts_smp_atomic32_read_band_acqb(&prt->sched.flags, + ~ERTS_PTS_FLG_BUSY_PORT); + if (!(flags & ERTS_PTS_FLG_BUSY_PORT)) + return; /* Already non-busy */ #ifdef USE_VM_PROBES if (DTRACE_ENABLED(port_not_busy)) { - erts_snprintf(port_str, sizeof(port_str), - "%T", erts_port[port_num].id); + erts_snprintf(port_str, sizeof(DTRACE_CHARBUF_NAME(port_str)), + "%T", prt->common.id); DTRACE1(port_not_busy, port_str); } #endif - if (erts_port[port_num].dist_entry) { + if (prt->dist_entry) { /* * Processes suspended on distribution ports are * normally queued on the dist entry. */ - erts_dist_port_not_busy(&erts_port[port_num]); + erts_dist_port_not_busy(prt); } - /* - * Resume, in a round-robin fashion, all processes waiting on the port. - * - * This version submitted by Tony Rogvall. The earlier version used - * to resume the processes in order, which caused starvation of all but - * the first process. - */ + if (!(flags & ERTS_PTS_FLG_BUSY_PORT_Q)) + erts_port_resume_procs(prt); + } +} + +void +erts_port_resume_procs(Port *prt) +{ + /* + * Resume, in a round-robin fashion, all processes waiting on the port. + * + * This version submitted by Tony Rogvall. The earlier version used + * to resume the processes in order, which caused starvation of all but + * the first process. + */ + ErtsProcList *plp; + + erts_port_task_sched_lock(&prt->sched); + plp = prt->suspended; + prt->suspended = NULL; + erts_port_task_sched_unlock(&prt->sched); + + if (erts_proclist_fetch(&plp, NULL)) { - if (plp) { #ifdef USE_VM_PROBES - /* - * Hrm, for blocked dist ports, plp always seems to be NULL. - * That's not so fun. - * Well, another way to get the same info is using a D - * script to correlate an earlier process-port_blocked+pid - * event with a later process-scheduled event. That's - * subject to the multi-CPU races with how events are - * handled, but hey, that way works most of the time. - */ - if (DTRACE_ENABLED(process_port_unblocked)) { - DTRACE_CHARBUF(pid_str, 16); - ErtsProcList* plp2 = plp; - - erts_snprintf(port_str, sizeof(port_str), - "%T", erts_port[port_num]); - while (plp2 != NULL) { - erts_snprintf(pid_str, sizeof(pid_str), "%T", plp2->pid); - DTRACE2(process_port_unblocked, pid_str, port_str); - } - } -#endif - /* First proc should be resumed last */ - if (plp->next) { - erts_resume_processes(plp->next); - plp->next = NULL; + /* + * Hrm, for blocked dist ports, plp always seems to be NULL. + * That's not so fun. + * Well, another way to get the same info is using a D + * script to correlate an earlier process-port_blocked+pid + * event with a later process-scheduled event. That's + * subject to the multi-CPU races with how events are + * handled, but hey, that way works most of the time. + */ + if (DTRACE_ENABLED(process_port_unblocked)) { + DTRACE_CHARBUF(port_str, 16); + DTRACE_CHARBUF(pid_str, 16); + ErtsProcList* plp2 = plp; + + erts_snprintf(port_str, sizeof(DTRACE_CHARBUF_NAME(port_str)), "%T", prt->common.id); + while (plp2 != NULL) { + erts_snprintf(pid_str, sizeof(DTRACE_CHARBUF_NAME(pid_str)), "%T", plp2->pid); + DTRACE2(process_port_unblocked, pid_str, port_str); } - erts_resume_processes(plp); - } + } +#endif + + /* First proc should be resumed last */ + if (plp->next) { + plp->next->prev = NULL; + erts_resume_processes(plp->next); + plp->next = NULL; + } + erts_resume_processes(plp); } } void set_port_control_flags(ErlDrvPort port_num, int flags) { - - ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(&erts_port[port_num])); - - erts_port[port_num].control_flags = flags; + Port *prt = erts_drvport2port(port_num); + if (prt != ERTS_INVALID_ERL_DRV_PORT) + prt->control_flags = flags; } -int get_port_flags(ErlDrvPort ix) { - Port* prt = erts_drvport2port(ix); +int get_port_flags(ErlDrvPort ix) +{ + int flags; + Port *prt; + erts_aint32_t state; + + prt = erts_drvport2port_state(ix, &state); + if (prt == ERTS_INVALID_ERL_DRV_PORT) + return 0; ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt)); - if (prt == NULL) - return 0; + flags = 0; + if (state & ERTS_PORT_SFLG_BINARY_IO) + flags |= PORT_FLAG_BINARY; + if (state & ERTS_PORT_SFLG_LINEBUF_IO) + flags |= PORT_FLAG_LINE; - return (prt->status & ERTS_PORT_SFLG_BINARY_IO ? PORT_FLAG_BINARY : 0) - | (prt->status & ERTS_PORT_SFLG_LINEBUF_IO ? PORT_FLAG_LINE : 0); + return flags; } - void erts_raw_port_command(Port* p, byte* buf, Uint len) { int fpe_was_unmasked; @@ -2655,25 +4807,18 @@ int async_ready(Port *p, void* data) if (p) { ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(p)); - ASSERT(!(p->status & ERTS_PORT_SFLGS_DEAD)); if (p->drv_ptr->ready_async != NULL) { #ifdef USE_VM_PROBES if (DTRACE_ENABLED(driver_ready_async)) { - DTRACE_FORMAT_COMMON_PID_AND_PORT(p->connected, p) + DTRACE_FORMAT_COMMON_PID_AND_PORT(ERTS_PORT_GET_CONNECTED(p), p) DTRACE3(driver_ready_async, process_str, port_str, p->name); } #endif (*p->drv_ptr->ready_async)((ErlDrvData)p->drv_data, data); need_free = 0; -#ifdef ERTS_SMP - if (p->xports) - erts_smp_xports_unlock(p); - ASSERT(!p->xports); -#endif - } - if ((p->status & ERTS_PORT_SFLG_CLOSING) && is_port_ioq_empty(p)) { - terminate_port(p); + } + erts_port_driver_callback_epilogue(p, NULL); } return need_free; } @@ -2681,12 +4826,13 @@ int async_ready(Port *p, void* data) static void report_missing_drv_callback(Port *p, char *drv_type, char *callback) { - ErtsPortNames *pnp = erts_get_port_names(p->id); + ErtsPortNames *pnp = erts_get_port_names(p->common.id, + ERTS_Port2ErlDrvPort(p)); char *unknown = "<unknown>"; char *drv_name = pnp->driver_name ? pnp->driver_name : unknown; char *prt_name = pnp->name ? pnp->name : unknown; erts_dsprintf_buf_t *dsbufp = erts_create_logger_dsbuf(); - erts_dsprintf(dsbufp, "%T: %s driver '%s' ", p->id, drv_type, drv_name); + erts_dsprintf(dsbufp, "%T: %s driver '%s' ", p->common.id, drv_type, drv_name); if (sys_strcmp(drv_name, prt_name) != 0) erts_dsprintf(dsbufp, "(%s) ", prt_name); erts_dsprintf(dsbufp, "does not implement the %s callback!\n", callback); @@ -2696,15 +4842,25 @@ report_missing_drv_callback(Port *p, char *drv_type, char *callback) void erts_stale_drv_select(Eterm port, + ErlDrvPort drv_port, ErlDrvEvent hndl, int mode, int deselect) { char *type; - ErlDrvPort drv_port = internal_port_index(port); - ErtsPortNames *pnp = erts_get_port_names(port); + ErtsPortNames *pnp; erts_dsprintf_buf_t *dsbufp; + if (drv_port == ERTS_INVALID_ERL_DRV_PORT) { + Port *prt = erts_port_lookup_raw(port); + if (prt) + drv_port = ERTS_Port2ErlDrvPort(prt); + else + drv_port = ERTS_INVALID_ERL_DRV_PORT; + } + + pnp = erts_get_port_names(port, drv_port); + switch (mode) { case ERL_DRV_READ | ERL_DRV_WRITE: type = "Input/Output"; @@ -2739,23 +4895,28 @@ erts_stale_drv_select(Eterm port, } ErtsPortNames * -erts_get_port_names(Eterm id) +erts_get_port_names(Eterm id, ErlDrvPort drv_port) { + Port *prt; ErtsPortNames *pnp; ASSERT(is_nil(id) || is_internal_port(id)); - - if (is_not_internal_port(id)) { + + prt = ERTS_ErlDrvPort2Port(drv_port); + if (prt == ERTS_INVALID_ERL_DRV_PORT) + prt = erts_port_lookup_raw(id); + + if (!prt) { pnp = erts_alloc(ERTS_ALC_T_PORT_NAMES, sizeof(ErtsPortNames)); pnp->name = NULL; pnp->driver_name = NULL; } else { - Port* prt = &erts_port[internal_port_index(id)]; int do_realloc = 1; int len = -1; size_t pnp_len = sizeof(ErtsPortNames); #ifndef DEBUG pnp_len += 100; /* In most cases 100 characters will be enough... */ + ASSERT(prt->common.id == id); #endif pnp = erts_alloc(ERTS_ALC_T_PORT_NAMES, pnp_len); do { @@ -2766,17 +4927,10 @@ erts_get_port_names(Eterm id) pnp_len = sizeof(ErtsPortNames) + len; pnp = erts_alloc(ERTS_ALC_T_PORT_NAMES, pnp_len); } - erts_smp_port_state_lock(prt); - if (id != prt->id) { - len = nlen = 0; - name = driver_name = NULL; - } - else { - name = prt->name; - len = nlen = name ? sys_strlen(name) + 1 : 0; - driver_name = (prt->drv_ptr ? prt->drv_ptr->name : NULL); - len += driver_name ? sys_strlen(driver_name) + 1 : 0; - } + name = prt->name; + len = nlen = name ? sys_strlen(name) + 1 : 0; + driver_name = (prt->drv_ptr ? prt->drv_ptr->name : NULL); + len += driver_name ? sys_strlen(driver_name) + 1 : 0; if (len <= pnp_len - sizeof(ErtsPortNames)) { if (!name) pnp->name = NULL; @@ -2794,7 +4948,6 @@ erts_get_port_names(Eterm id) } do_realloc = 0; } - erts_smp_port_state_unlock(prt); } while (do_realloc); } return pnp; @@ -2819,11 +4972,9 @@ static void schedule_port_timeout(Port *p) * /Rickard */ ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(p)); - (void) erts_port_task_schedule(p->id, - &p->timeout_task, - ERTS_PORT_TASK_TIMEOUT, - (ErlDrvEvent) -1, - NULL); + erts_port_task_schedule(p->common.id, + &p->timeout_task, + ERTS_PORT_TASK_TIMEOUT); } ErlDrvTermData driver_mk_term_nil(void) @@ -2831,9 +4982,8 @@ ErlDrvTermData driver_mk_term_nil(void) return driver_term_nil; } -void driver_report_exit(int ix, int status) +void driver_report_exit(ErlDrvPort ix, int status) { - Port* prt = erts_drvport2port(ix); Eterm* hp; Eterm tuple; Process *rp; @@ -2841,13 +4991,21 @@ void driver_report_exit(int ix, int status) ErlHeapFragment *bp = NULL; ErlOffHeap *ohp; ErtsProcLocks rp_locks = 0; + int scheduler = erts_get_scheduler_id() != 0; + Port* prt = erts_drvport2port(ix); + + if (prt == ERTS_INVALID_ERL_DRV_PORT) + return; ERTS_SMP_CHK_NO_PROC_LOCKS; ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt)); - pid = prt->connected; + pid = ERTS_PORT_GET_CONNECTED(prt); ASSERT(is_internal_pid(pid)); - rp = erts_pid2proc_opt(NULL, 0, pid, 0, ERTS_P2P_FLG_SMP_INC_REFC); + + rp = (scheduler + ? erts_proc_lookup(pid) + : erts_pid2proc_opt(NULL, 0, pid, 0, ERTS_P2P_FLG_SMP_INC_REFC)); if (!rp) return; @@ -2855,7 +5013,7 @@ void driver_report_exit(int ix, int status) tuple = TUPLE2(hp, am_exit_status, make_small(status)); hp += 3; - tuple = TUPLE2(hp, prt->id, tuple); + tuple = TUPLE2(hp, prt->common.id, tuple); erts_queue_message(rp, &rp_locks, bp, tuple, am_undefined #ifdef USE_VM_PROBES @@ -2864,29 +5022,8 @@ void driver_report_exit(int ix, int status) ); erts_smp_proc_unlock(rp, rp_locks); - erts_smp_proc_dec_refc(rp); -} - - -static ERTS_INLINE int -deliver_term_check_port(ErlDrvPort drvport) -{ - int res; - int ix = (int) drvport; - if (ix < 0 || erts_max_ports <= ix) - res = -1; /* invalid */ - else { - Port* prt = &erts_port[ix]; - erts_smp_port_state_lock(prt); - if (!(prt->status & ERTS_PORT_SFLGS_INVALID_LOOKUP)) - res = 1; /* ok */ - else if (prt->status & ERTS_PORT_SFLG_CLOSING) - res = 0; /* closing */ - else - res = -1; /* invalid (dead) */ - erts_smp_port_state_unlock(prt); - } - return res; + if (!scheduler) + erts_smp_proc_dec_refc(rp); } #define ERTS_B2T_STATES_DEF_STATES_SZ 5 @@ -2976,10 +5113,7 @@ cleanup_b2t_states(struct b2t_states__ *b2tsp) */ static int -driver_deliver_term(ErlDrvPort port, - Eterm to, - ErlDrvTermData* data, - int len) +driver_deliver_term(Eterm to, ErlDrvTermData* data, int len) { #define ERTS_DDT_FAIL do { res = -1; goto done; } while (0) Uint need = 0; @@ -2995,6 +5129,7 @@ driver_deliver_term(ErlDrvPort port, ErlOffHeap *ohp; ErtsProcLocks rp_locks = 0; struct b2t_states__ b2t; + int scheduler = 1; /* Silence erroneous warning... */ init_b2t_states(&b2t); @@ -3167,6 +5302,17 @@ driver_deliver_term(ErlDrvPort port, depth++; break; } + case ERL_DRV_MAP: { /* int */ + ERTS_DDT_CHK_ENOUGH_ARGS(1); + if ((int) ptr[0] < 0) ERTS_DDT_FAIL; + need += MAP_HEADER_SIZE + 1 + 2*ptr[0]; + depth -= 2*ptr[0]; + if (depth < 0) ERTS_DDT_FAIL; + ptr++; + depth++; + break; + } + default: ERTS_DDT_FAIL; } @@ -3180,13 +5326,16 @@ driver_deliver_term(ErlDrvPort port, b2t.ix = 0; /* - * The term is OK. Go ahead and validate the port and process. + * The term is OK. Go ahead and validate the process. */ - res = deliver_term_check_port(port); - if (res <= 0) - goto done; - rp = erts_pid2proc_opt(NULL, 0, to, rp_locks, ERTS_P2P_FLG_SMP_INC_REFC); + /* + * Increase refc on proc if done from a non-scheduler thread. + */ + scheduler = erts_get_scheduler_id() != 0; + rp = (scheduler + ? erts_proc_lookup(to) + : erts_pid2proc_opt(NULL, 0, to, 0, ERTS_P2P_FLG_SMP_INC_REFC)); if (!rp) { res = 0; goto done; @@ -3400,6 +5549,36 @@ driver_deliver_term(ErlDrvPort port, ptr += 2; break; + case ERL_DRV_MAP: { /* int */ + int size = (int)ptr[0]; + Eterm* tp = hp; + Eterm* vp; + map_t *mp; + + *tp = make_arityval(size); + + hp += 1 + size; + mp = (map_t*)hp; + mp->thing_word = MAP_HEADER; + mp->size = size; + mp->keys = make_tuple(tp); + mess = make_map(mp); + + hp += MAP_HEADER_SIZE + size; /* advance "heap" pointer */ + + tp += size; /* point at last key */ + vp = hp - 1; /* point at last value */ + + while(size--) { + *vp-- = ESTACK_POP(stack); + *tp-- = ESTACK_POP(stack); + } + if (!erts_validate_and_sort_map(mp)) + ERTS_DDT_FAIL; + ptr++; + break; + } + } ESTACK_PUSH(stack, mess); } @@ -3438,7 +5617,8 @@ driver_deliver_term(ErlDrvPort port, if (rp) { if (rp_locks) erts_smp_proc_unlock(rp, rp_locks); - erts_smp_proc_dec_refc(rp); + if (!scheduler) + erts_smp_proc_dec_refc(rp); } #endif cleanup_b2t_states(&b2t); @@ -3447,25 +5627,119 @@ driver_deliver_term(ErlDrvPort port, #undef ERTS_DDT_FAIL } +static ERTS_INLINE int +deliver_term_check_port(ErlDrvTermData port_id, Eterm *connected_p) +{ +#ifdef ERTS_SMP + ErtsThrPrgrDelayHandle dhndl = erts_thr_progress_unmanaged_delay(); +#endif + erts_aint32_t state; + Port *prt = erts_port_lookup_raw((Eterm) port_id); + if (!prt) + return -1; + state = erts_atomic32_read_nob(&prt->state); + if (state & (ERTS_PORT_SFLGS_INVALID_DRIVER_LOOKUP + | ERTS_PORT_SFLG_CLOSING)) { + if (state & ERTS_PORT_SFLGS_INVALID_DRIVER_LOOKUP) + return -1; + else + return 0; + } + if (connected_p) { +#ifdef ERTS_SMP + if (dhndl != ERTS_THR_PRGR_DHANDLE_MANAGED) + ETHR_MEMBAR(ETHR_LoadLoad); +#endif + *connected_p = ERTS_PORT_GET_CONNECTED(prt); + } +#ifdef ERTS_SMP + if (dhndl != ERTS_THR_PRGR_DHANDLE_MANAGED) { + erts_thr_progress_unmanaged_continue(dhndl); + ETHR_MEMBAR(ETHR_LoadLoad|ETHR_LoadStore); + } +#endif + ERTS_SMP_LC_ASSERT(dhndl == ERTS_THR_PRGR_DHANDLE_MANAGED + ? erts_lc_is_port_locked(prt) + : !erts_lc_is_port_locked(prt)); + return 1; +} + +int erl_drv_output_term(ErlDrvTermData port_id, ErlDrvTermData* data, int len) +{ + /* May be called from arbitrary thread */ + Eterm connected; + int res = deliver_term_check_port(port_id, &connected); + if (res <= 0) + return res; + return driver_deliver_term(connected, data, len); +} +/* + * driver_output_term() is deprecated, and has been scheduled for + * removal in OTP-R17. It is replaced by erl_drv_output_term() + * above. + */ int -driver_output_term(ErlDrvPort ix, ErlDrvTermData* data, int len) +driver_output_term(ErlDrvPort drvport, ErlDrvTermData* data, int len) { - Port* prt = erts_drvport2port(ix); + erts_aint32_t state; + Port* prt; ERTS_SMP_CHK_NO_PROC_LOCKS; + /* NOTE! It *not* safe to access 'drvport' from unmanaged threads. */ + prt = erts_drvport2port_state(drvport, &state); + if (prt == ERTS_INVALID_ERL_DRV_PORT) + return -1; /* invalid (dead) */ + ERTS_SMP_CHK_NO_PROC_LOCKS; ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt)); + if (state & ERTS_PORT_SFLG_CLOSING) + return 0; - if (prt == NULL) - return -1; - return driver_deliver_term(ix, prt->connected, data, len); + return driver_deliver_term(ERTS_PORT_GET_CONNECTED(prt), data, len); } +int erl_drv_send_term(ErlDrvTermData port_id, + ErlDrvTermData to, + ErlDrvTermData* data, + int len) +{ + /* May be called from arbitrary thread */ + int res = deliver_term_check_port(port_id, NULL); + if (res <= 0) + return res; + return driver_deliver_term(to, data, len); +} +/* + * driver_send_term() is deprecated, and has been scheduled for + * removal in OTP-R17. It is replaced by erl_drv_send_term() above. + */ int -driver_send_term(ErlDrvPort ix, ErlDrvTermData to, ErlDrvTermData* data, int len) +driver_send_term(ErlDrvPort drvport, + ErlDrvTermData to, + ErlDrvTermData* data, + int len) { - return driver_deliver_term(ix, to, data, len); + /* + * NOTE! It is *not* safe to access the 'drvport' parameter + * from unmanaged threads. Also note that it is impossible + * to make this access safe without using a less efficient + * internal data representation for ErlDrvPort. + */ + ERTS_SMP_CHK_NO_PROC_LOCKS; +#ifdef ERTS_SMP + if (erts_thr_progress_is_managed_thread()) +#endif + { + erts_aint32_t state; + Port* prt = erts_drvport2port_state(drvport, &state); + if (prt == ERTS_INVALID_ERL_DRV_PORT) + return -1; /* invalid (dead) */ + ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt)); + if (state & ERTS_PORT_SFLG_CLOSING) + return 0; + } + return driver_deliver_term(to, data, len); } @@ -3477,26 +5751,27 @@ driver_send_term(ErlDrvPort ix, ErlDrvTermData to, ErlDrvTermData* data, int len int driver_output_binary(ErlDrvPort ix, char* hbuf, ErlDrvSizeT hlen, ErlDrvBinary* bin, ErlDrvSizeT offs, ErlDrvSizeT len) { - Port* prt = erts_drvport2port(ix); + erts_aint32_t state; + Port* prt = erts_drvport2port_state(ix, &state); ERTS_SMP_CHK_NO_PROC_LOCKS; - if (prt == NULL) + if (prt == ERTS_INVALID_ERL_DRV_PORT) return -1; ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt)); - if (prt->status & ERTS_PORT_SFLG_CLOSING) + if (state & ERTS_PORT_SFLG_CLOSING) return 0; prt->bytes_in += (hlen + len); erts_smp_atomic_add_nob(&erts_bytes_in, (erts_aint_t) (hlen + len)); - if (prt->status & ERTS_PORT_SFLG_DISTRIBUTION) { + if (state & ERTS_PORT_SFLG_DISTRIBUTION) { return erts_net_message(prt, prt->dist_entry, (byte*) hbuf, hlen, (byte*) (bin->orig_bytes+offs), len); } else - deliver_bin_message(prt, prt->connected, + deliver_bin_message(prt, ERTS_PORT_GET_CONNECTED(prt), hbuf, hlen, bin, offs, len); return 0; } @@ -3511,21 +5786,21 @@ int driver_output_binary(ErlDrvPort ix, char* hbuf, ErlDrvSizeT hlen, int driver_output2(ErlDrvPort ix, char* hbuf, ErlDrvSizeT hlen, char* buf, ErlDrvSizeT len) { - Port* prt = erts_drvport2port(ix); + erts_aint32_t state; + Port* prt = erts_drvport2port_state(ix, &state); ERTS_SMP_CHK_NO_PROC_LOCKS; - if (prt == NULL) + if (prt == ERTS_INVALID_ERL_DRV_PORT) return -1; ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt)); - - if (prt->status & ERTS_PORT_SFLG_CLOSING) + if (state & ERTS_PORT_SFLG_CLOSING) return 0; prt->bytes_in += (hlen + len); erts_smp_atomic_add_nob(&erts_bytes_in, (erts_aint_t) (hlen + len)); - if (prt->status & ERTS_PORT_SFLG_DISTRIBUTION) { + if (state & ERTS_PORT_SFLG_DISTRIBUTION) { if (len == 0) return erts_net_message(prt, prt->dist_entry, @@ -3537,10 +5812,12 @@ int driver_output2(ErlDrvPort ix, char* hbuf, ErlDrvSizeT hlen, (byte*) hbuf, hlen, (byte*) buf, len); } - else if(prt->status & ERTS_PORT_SFLG_LINEBUF_IO) - deliver_linebuf_message(prt, prt->connected, hbuf, hlen, buf, len); + else if (state & ERTS_PORT_SFLG_LINEBUF_IO) + deliver_linebuf_message(prt, state, ERTS_PORT_GET_CONNECTED(prt), + hbuf, hlen, buf, len); else - deliver_read_message(prt, prt->connected, hbuf, hlen, buf, len, 0); + deliver_read_message(prt, state, ERTS_PORT_GET_CONNECTED(prt), + hbuf, hlen, buf, len, 0); return 0; } @@ -3561,6 +5838,7 @@ int driver_outputv(ErlDrvPort ix, char* hbuf, ErlDrvSizeT hlen, SysIOVec* iov; ErlDrvBinary** binv; Port* prt; + erts_aint32_t state; ERTS_SMP_CHK_NO_PROC_LOCKS; @@ -3569,17 +5847,13 @@ int driver_outputv(ErlDrvPort ix, char* hbuf, ErlDrvSizeT hlen, return driver_output2(ix, hbuf, hlen, NULL, 0); size = vec->size - skip; /* Size of remaining bytes in vector */ - ASSERT(hlen >= 0); /* debug only */ - if (hlen < 0) - hlen = 0; - - prt = erts_drvport2port(ix); - if (prt == NULL) + prt = erts_drvport2port_state(ix, &state); + if (prt == ERTS_INVALID_ERL_DRV_PORT) return -1; ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt)); - if (prt->status & ERTS_PORT_SFLG_CLOSING) + if (state & ERTS_PORT_SFLG_CLOSING) return 0; /* size > 0 ! */ @@ -3595,7 +5869,7 @@ int driver_outputv(ErlDrvPort ix, char* hbuf, ErlDrvSizeT hlen, binv++; n--; } else { - iov->iov_base += skip; + iov->iov_base = ((char *)(iov->iov_base)) + skip; iov->iov_len -= skip; skip = 0; } @@ -3604,7 +5878,8 @@ int driver_outputv(ErlDrvPort ix, char* hbuf, ErlDrvSizeT hlen, /* XXX handle distribution !!! */ prt->bytes_in += (hlen + size); erts_smp_atomic_add_nob(&erts_bytes_in, (erts_aint_t) (hlen + size)); - deliver_vec_message(prt, prt->connected, hbuf, hlen, binv, iov, n, size); + deliver_vec_message(prt, ERTS_PORT_GET_CONNECTED(prt), hbuf, hlen, + binv, iov, n, size); return 0; } @@ -3715,8 +5990,7 @@ ErlDrvBinary* driver_realloc_binary(ErlDrvBinary* bin, ErlDrvSizeT size) } -void driver_free_binary(dbin) -ErlDrvBinary* dbin; +void driver_free_binary(ErlDrvBinary* dbin) { Binary *bin; if (!dbin) { @@ -3812,6 +6086,7 @@ static ERTS_INLINE void pdl_destroy(ErlDrvPDL pdl) { ERTS_LC_ASSERT(driver_pdl_get_refc(pdl) == 0); erts_mtx_destroy(&pdl->mtx); + erts_port_dec_refc(pdl->prt); erts_free(ERTS_ALC_T_PORT_DATA_LOCK, pdl); } @@ -3850,15 +6125,17 @@ driver_pdl_create(ErlDrvPort dp) { ErlDrvPDL pdl; Port *pp = erts_drvport2port(dp); - if (!pp || pp->port_data_lock) + if (pp == ERTS_INVALID_ERL_DRV_PORT || pp->port_data_lock) return NULL; pdl = erts_alloc(ERTS_ALC_T_PORT_DATA_LOCK, sizeof(struct erl_drv_port_data_lock)); - erts_mtx_init(&pdl->mtx, "port_data_lock"); + erts_mtx_init_x(&pdl->mtx, "port_data_lock", pp->common.id, 1); pdl_init_refc(pdl); + erts_port_inc_refc(pp); + pdl->prt = pp; pp->port_data_lock = pdl; #ifdef HARDDEBUG - erts_fprintf(stderr, "driver_pdl_create(%T) -> 0x%08X\r\n",pp->id,(unsigned) pdl); + erts_fprintf(stderr, "driver_pdl_create(%T) -> 0x%08X\r\n",pp->common.id,(unsigned) pdl); #endif return pdl; } @@ -4037,7 +6314,7 @@ int driver_enqv(ErlDrvPort ix, ErlIOVec* vec, ErlDrvSizeT skip) n--; } else { - iov->iov_base += skip; + iov->iov_base = ((char *)(iov->iov_base)) + skip; iov->iov_len -= skip; skip = 0; } @@ -4102,7 +6379,7 @@ int driver_pushqv(ErlDrvPort ix, ErlIOVec* vec, ErlDrvSizeT skip) n--; } else { - iov->iov_base += skip; + iov->iov_base = ((char *)(iov->iov_base)) + skip; iov->iov_len -= skip; skip = 0; } @@ -4161,7 +6438,7 @@ ErlDrvSizeT driver_deq(ErlDrvPort ix, ErlDrvSizeT size) q->v_head++; } else { - q->v_head->iov_base += size; + q->v_head->iov_base = ((char *)(q->v_head->iov_base)) + size; q->v_head->iov_len -= size; size = 0; } @@ -4296,12 +6573,12 @@ static ERTS_INLINE void drv_cancel_timer(Port *prt) { #ifdef ERTS_SMP - erts_cancel_smp_ptimer(prt->ptimer); + erts_cancel_smp_ptimer(prt->common.u.alive.ptimer); #else - erts_cancel_timer(&prt->tm); + erts_cancel_timer(&prt->common.u.alive.tm); #endif if (erts_port_task_is_scheduled(&prt->timeout_task)) - erts_port_task_abort(prt->id, &prt->timeout_task); + erts_port_task_abort(&prt->timeout_task); } int driver_set_timer(ErlDrvPort ix, unsigned long t) @@ -4310,19 +6587,19 @@ int driver_set_timer(ErlDrvPort ix, unsigned long t) ERTS_SMP_CHK_NO_PROC_LOCKS; - if (prt == NULL) + if (prt == ERTS_INVALID_ERL_DRV_PORT) return -1; - ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt)); + if (prt->drv_ptr->timeout == NULL) return -1; drv_cancel_timer(prt); #ifdef ERTS_SMP - erts_create_smp_ptimer(&prt->ptimer, - prt->id, + erts_create_smp_ptimer(&prt->common.u.alive.ptimer, + prt->common.id, (ErlTimeoutProc) schedule_port_timeout, t); #else - erts_set_timer(&prt->tm, + erts_set_timer(&prt->common.u.alive.tm, (ErlTimeoutProc) schedule_port_timeout, NULL, prt, @@ -4334,7 +6611,7 @@ int driver_set_timer(ErlDrvPort ix, unsigned long t) int driver_cancel_timer(ErlDrvPort ix) { Port* prt = erts_drvport2port(ix); - if (prt == NULL) + if (prt == ERTS_INVALID_ERL_DRV_PORT) return -1; ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt)); drv_cancel_timer(prt); @@ -4349,13 +6626,15 @@ driver_read_timer(ErlDrvPort ix, unsigned long* t) ERTS_SMP_CHK_NO_PROC_LOCKS; - if (prt == NULL) + if (prt == ERTS_INVALID_ERL_DRV_PORT) return -1; ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt)); #ifdef ERTS_SMP - *t = prt->ptimer ? erts_time_left(&prt->ptimer->timer.tm) : 0; + *t = (prt->common.u.alive.ptimer + ? erts_time_left(&prt->common.u.alive.ptimer->timer.tm) + : 0); #else - *t = erts_time_left(&prt->tm); + *t = erts_time_left(&prt->common.u.alive.tm); #endif return 0; } @@ -4406,8 +6685,8 @@ static int do_driver_monitor_process(Port *prt, } ref = erts_make_ref_in_buffer(buf); - erts_add_monitor(&(prt->monitors), MON_ORIGIN, ref, rp->id, NIL); - erts_add_monitor(&(rp->monitors), MON_TARGET, ref, prt->id, NIL); + erts_add_monitor(&ERTS_P_MONITORS(prt), MON_ORIGIN, ref, rp->common.id, NIL); + erts_add_monitor(&ERTS_P_MONITORS(rp), MON_TARGET, ref, prt->common.id, NIL); erts_smp_proc_unlock(rp, ERTS_PROC_LOCK_LINK); ref_to_driver_monitor(ref,monitor); @@ -4417,34 +6696,19 @@ static int do_driver_monitor_process(Port *prt, /* * This can be called from a non scheduler thread iff a port_data_lock exists */ -int driver_monitor_process(ErlDrvPort port, +int driver_monitor_process(ErlDrvPort drvport, ErlDrvTermData process, ErlDrvMonitor *monitor) { Port *prt; int ret; - Uint32 status; +#if !HEAP_ON_C_STACK || (defined(ERTS_SMP) && defined(ERTS_ENABLE_LOCK_CHECK)) ErtsSchedulerData *sched = erts_get_scheduler_data(); - int ix = (int) port; - if (ix < 0 || erts_max_ports <= ix) { - return -1; - } - prt = &erts_port[ix]; - - DRV_MONITOR_LOCK_PDL(prt); - - if (sched) { - status = erts_port[ix].status; - } else { - erts_smp_port_state_lock(prt); - status = erts_port[ix].status; - erts_smp_port_state_unlock(prt); - } +#endif - if (status & ERTS_PORT_SFLGS_INVALID_DRIVER_LOOKUP) { - DRV_MONITOR_UNLOCK_PDL(prt); + prt = DRV_MONITOR_LOOKUP_PORT_LOCK_PDL(drvport); + if (prt == ERTS_INVALID_ERL_DRV_PORT) return -1; - } /* Now (in SMP) we should have either the port lock (if we have a scheduler) or the port data lock (if we're a driver thread) */ @@ -4479,7 +6743,7 @@ static int do_driver_demonitor_process(Port *prt, Eterm *buf, memcpy(buf,monitor,sizeof(Eterm)*REF_THING_SIZE); ref = make_internal_ref(buf); - mon = erts_lookup_monitor(prt->monitors, ref); + mon = erts_lookup_monitor(ERTS_P_MONITORS(prt), ref); if (mon == NULL) { return 1; } @@ -4491,13 +6755,13 @@ static int do_driver_demonitor_process(Port *prt, Eterm *buf, to, ERTS_PROC_LOCK_LINK, ERTS_P2P_FLG_ALLOW_OTHER_X); - mon = erts_remove_monitor(&(prt->monitors), ref); + mon = erts_remove_monitor(&ERTS_P_MONITORS(prt), ref); if (mon) { erts_destroy_monitor(mon); } if (rp) { ErtsMonitor *rmon; - rmon = erts_remove_monitor(&(rp->monitors), ref); + rmon = erts_remove_monitor(&ERTS_P_MONITORS(rp), ref); erts_smp_proc_unlock(rp, ERTS_PROC_LOCK_LINK); if (rmon != NULL) { erts_destroy_monitor(rmon); @@ -4506,33 +6770,18 @@ static int do_driver_demonitor_process(Port *prt, Eterm *buf, return 0; } -int driver_demonitor_process(ErlDrvPort port, +int driver_demonitor_process(ErlDrvPort drvport, const ErlDrvMonitor *monitor) { Port *prt; int ret; - Uint32 status; +#if !HEAP_ON_C_STACK || (defined(ERTS_SMP) && defined(ERTS_ENABLE_LOCK_CHECK)) ErtsSchedulerData *sched = erts_get_scheduler_data(); - int ix = (int) port; - if (ix < 0 || erts_max_ports <= ix) { - return -1; - } - prt = &erts_port[ix]; - - DRV_MONITOR_LOCK_PDL(prt); - - if (sched) { - status = erts_port[ix].status; - } else { - erts_smp_port_state_lock(prt); - status = erts_port[ix].status; - erts_smp_port_state_unlock(prt); - } +#endif - if (status & ERTS_PORT_SFLGS_INVALID_DRIVER_LOOKUP) { - DRV_MONITOR_UNLOCK_PDL(prt); + prt = DRV_MONITOR_LOOKUP_PORT_LOCK_PDL(drvport); + if (prt == ERTS_INVALID_ERL_DRV_PORT) return -1; - } /* Now we should have either the port lock (if we have a scheduler) or the port data lock (if we're a driver thread) */ @@ -4565,7 +6814,7 @@ static ErlDrvTermData do_driver_get_monitored_process(Port *prt, Eterm *buf, memcpy(buf,monitor,sizeof(Eterm)*REF_THING_SIZE); ref = make_internal_ref(buf); - mon = erts_lookup_monitor(prt->monitors, ref); + mon = erts_lookup_monitor(ERTS_P_MONITORS(prt), ref); if (mon == NULL) { return driver_term_nil; } @@ -4576,33 +6825,18 @@ static ErlDrvTermData do_driver_get_monitored_process(Port *prt, Eterm *buf, } -ErlDrvTermData driver_get_monitored_process(ErlDrvPort port, +ErlDrvTermData driver_get_monitored_process(ErlDrvPort drvport, const ErlDrvMonitor *monitor) { Port *prt; ErlDrvTermData ret; - Uint32 status; +#if !HEAP_ON_C_STACK || (defined(ERTS_SMP) && defined(ERTS_ENABLE_LOCK_CHECK)) ErtsSchedulerData *sched = erts_get_scheduler_data(); - int ix = (int) port; - if (ix < 0 || erts_max_ports <= ix) { - return driver_term_nil; - } - prt = &erts_port[ix]; - - DRV_MONITOR_LOCK_PDL(prt); - - if (sched) { - status = erts_port[ix].status; - } else { - erts_smp_port_state_lock(prt); - status = erts_port[ix].status; - erts_smp_port_state_unlock(prt); - } +#endif - if (status & ERTS_PORT_SFLGS_INVALID_DRIVER_LOOKUP) { - DRV_MONITOR_UNLOCK_PDL(prt); + prt = DRV_MONITOR_LOOKUP_PORT_LOCK_PDL(drvport); + if (prt == ERTS_INVALID_ERL_DRV_PORT) return driver_term_nil; - } /* Now we should have either the port lock (if we have a scheduler) or the port data lock (if we're a driver thread) */ @@ -4644,7 +6878,7 @@ void erts_fire_port_monitor(Port *prt, Eterm ref) ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt)); ASSERT(prt->drv_ptr != NULL); DRV_MONITOR_LOCK_PDL(prt); - if (erts_lookup_monitor(prt->monitors,ref) == NULL) { + if (erts_lookup_monitor(ERTS_P_MONITORS(prt), ref) == NULL) { DRV_MONITOR_UNLOCK_PDL(prt); return; } @@ -4654,7 +6888,7 @@ void erts_fire_port_monitor(Port *prt, Eterm ref) DRV_MONITOR_UNLOCK_PDL(prt); #ifdef USE_VM_PROBES if (DTRACE_ENABLED(driver_process_exit)) { - DTRACE_FORMAT_COMMON_PID_AND_PORT(prt->connected, prt) + DTRACE_FORMAT_COMMON_PID_AND_PORT(ERTS_PORT_GET_CONNECTED(prt), prt) DTRACE3(driver_process_exit, process_str, port_str, prt->name); } #endif @@ -4663,7 +6897,7 @@ void erts_fire_port_monitor(Port *prt, Eterm ref) erts_unblock_fpe(fpe_was_unmasked); DRV_MONITOR_LOCK_PDL(prt); /* remove monitor *after* callback */ - rmon = erts_remove_monitor(&(prt->monitors),ref); + rmon = erts_remove_monitor(&ERTS_P_MONITORS(prt), ref); DRV_MONITOR_UNLOCK_PDL(prt); if (rmon) { erts_destroy_monitor(rmon); @@ -4674,27 +6908,28 @@ void erts_fire_port_monitor(Port *prt, Eterm ref) static int driver_failure_term(ErlDrvPort ix, Eterm term, int eof) { - Port* prt = erts_drvport2port(ix); + erts_aint32_t state; + Port* prt = erts_drvport2port_state(ix, &state); ERTS_SMP_CHK_NO_PROC_LOCKS; - if (prt == NULL) + if (prt == ERTS_INVALID_ERL_DRV_PORT) return -1; ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt)); if (eof) - flush_linebuf_messages(prt); - if (prt->status & ERTS_PORT_SFLG_CLOSING) { + flush_linebuf_messages(prt, state); + if (state & ERTS_PORT_SFLG_CLOSING) { terminate_port(prt); - } else if (eof && (prt->status & ERTS_PORT_SFLG_SOFT_EOF)) { - deliver_result(prt->id, prt->connected, am_eof); + } else if (eof && (state & ERTS_PORT_SFLG_SOFT_EOF)) { + deliver_result(prt->common.id, ERTS_PORT_GET_CONNECTED(prt), am_eof); } else { - /* XXX UGLY WORK AROUND, Let do_exit_port terminate the port */ + /* XXX UGLY WORK AROUND, Let erts_deliver_port_exit() terminate the port */ if (prt->port_data_lock) driver_pdl_lock(prt->port_data_lock); prt->ioq.size = 0; if (prt->port_data_lock) driver_pdl_unlock(prt->port_data_lock); - erts_do_exit_port(prt, prt->id, eof ? am_normal : term); + erts_deliver_port_exit(prt, prt->common.id, eof ? am_normal : term, 0); } return 0; } @@ -4710,20 +6945,20 @@ int driver_exit(ErlDrvPort ix, int err) Port* prt = erts_drvport2port(ix); Process* rp; ErtsLink *lnk, *rlnk = NULL; + Eterm connected; ERTS_SMP_CHK_NO_PROC_LOCKS; - if (prt == NULL) + if (prt == ERTS_INVALID_ERL_DRV_PORT) return -1; - ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt)); - - rp = erts_pid2proc(NULL, 0, prt->connected, ERTS_PROC_LOCK_LINK); + connected = ERTS_PORT_GET_CONNECTED(prt); + rp = erts_pid2proc(NULL, 0, connected, ERTS_PROC_LOCK_LINK); if (rp) { - rlnk = erts_remove_link(&(rp->nlinks),prt->id); + rlnk = erts_remove_link(&ERTS_P_LINKS(rp),prt->common.id); } - lnk = erts_remove_link(&(prt->nlinks),prt->connected); + lnk = erts_remove_link(&ERTS_P_LINKS(prt), connected); #ifdef ERTS_SMP if (rp) @@ -4742,7 +6977,8 @@ int driver_exit(ErlDrvPort ix, int err) return driver_failure_term(ix, am_normal, 0); else { char* err_str = erl_errno_id(err); - Eterm am_err = am_atom_put(err_str, sys_strlen(err_str)); + Eterm am_err = erts_atom_put((byte *) err_str, sys_strlen(err_str), + ERTS_ATOM_ENC_LATIN1, 1); return driver_failure_term(ix, am_err, 0); } } @@ -4755,8 +6991,12 @@ int driver_failure(ErlDrvPort ix, int code) int driver_failure_atom(ErlDrvPort ix, char* string) { - Eterm am = am_atom_put(string, strlen(string)); - return driver_failure_term(ix, am, 0); + return driver_failure_term(ix, + erts_atom_put((byte *) string, + strlen(string), + ERTS_ATOM_ENC_LATIN1, + 1), + 0); } int driver_failure_posix(ErlDrvPort ix, int err) @@ -4773,7 +7013,10 @@ int driver_failure_eof(ErlDrvPort ix) ErlDrvTermData driver_mk_atom(char* string) { - Eterm am = am_atom_put(string, sys_strlen(string)); + Eterm am = erts_atom_put((byte *) string, + sys_strlen(string), + ERTS_ATOM_ENC_LATIN1, + 1); ERTS_SMP_CHK_NO_PROC_LOCKS; return (ErlDrvTermData) am; } @@ -4781,25 +7024,27 @@ ErlDrvTermData driver_mk_atom(char* string) ErlDrvTermData driver_mk_port(ErlDrvPort ix) { Port* prt = erts_drvport2port(ix); + if (prt == ERTS_INVALID_ERL_DRV_PORT) + return (ErlDrvTermData) NIL; ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt)); - return (ErlDrvTermData) prt->id; + return (ErlDrvTermData) prt->common.id; } ErlDrvTermData driver_connected(ErlDrvPort ix) { Port* prt = erts_drvport2port(ix); ERTS_SMP_CHK_NO_PROC_LOCKS; - if (prt == NULL) + if (prt == ERTS_INVALID_ERL_DRV_PORT) return NIL; ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt)); - return prt->connected; + return ERTS_PORT_GET_CONNECTED(prt); } ErlDrvTermData driver_caller(ErlDrvPort ix) { Port* prt = erts_drvport2port(ix); ERTS_SMP_CHK_NO_PROC_LOCKS; - if (prt == NULL) + if (prt == ERTS_INVALID_ERL_DRV_PORT) return NIL; ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt)); return prt->caller; @@ -4812,20 +7057,18 @@ int driver_lock_driver(ErlDrvPort ix) ERTS_SMP_CHK_NO_PROC_LOCKS; - erts_smp_mtx_lock(&erts_driver_list_lock); - - if (prt == NULL) { - erts_smp_mtx_unlock(&erts_driver_list_lock); + if (prt == ERTS_INVALID_ERL_DRV_PORT) return -1; - } + + erts_smp_rwmtx_rwlock(&erts_driver_list_lock); ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt)); if ((dh = (DE_Handle*)prt->drv_ptr->handle ) == NULL) { - erts_smp_mtx_unlock(&erts_driver_list_lock); + erts_smp_rwmtx_rwunlock(&erts_driver_list_lock); return -1; } erts_ddll_lock_driver(dh, prt->drv_ptr->name); - erts_smp_mtx_unlock(&erts_driver_list_lock); + erts_smp_rwmtx_rwunlock(&erts_driver_list_lock); return 0; } @@ -4835,7 +7078,7 @@ static int maybe_lock_driver_list(void) void *rec_lock; rec_lock = erts_smp_tsd_get(driver_list_lock_status_key); if (rec_lock == 0) { - erts_smp_mtx_lock(&erts_driver_list_lock); + erts_smp_rwmtx_rwlock(&erts_driver_list_lock); return 1; } return 0; @@ -4843,7 +7086,7 @@ static int maybe_lock_driver_list(void) static void maybe_unlock_driver_list(int doit) { if (doit) { - erts_smp_mtx_unlock(&erts_driver_list_lock); + erts_smp_rwmtx_rwunlock(&erts_driver_list_lock); } } /* @@ -4868,7 +7111,7 @@ void *driver_dl_open(char * path) int res; int *last_error_p = erts_smp_tsd_get(driver_list_last_error_key); int locked = maybe_lock_driver_list(); - if ((res = erts_sys_ddll_open(path, &ptr)) == 0) { + if ((res = erts_sys_ddll_open(path, &ptr, NULL)) == 0) { maybe_unlock_driver_list(locked); return ptr; } else { @@ -4923,7 +7166,7 @@ char *driver_dl_error(void) #define ERL_DRV_SYS_INFO_SIZE(LAST_FIELD) \ - (((size_t) &((ErlDrvSysInfo *) 0)->LAST_FIELD) \ + (offsetof(ErlDrvSysInfo, LAST_FIELD) \ + sizeof(((ErlDrvSysInfo *) 0)->LAST_FIELD)) void @@ -5012,7 +7255,7 @@ no_event_callback(ErlDrvData drv_data, ErlDrvEvent event, ErlDrvEventData event_ { Port *prt = get_current_port(); report_missing_drv_callback(prt, "Event", "event()"); - driver_event((ErlDrvPort) internal_port_index(prt->id), event, NULL); + driver_event(ERTS_Port2ErlDrvPort(prt), event, NULL); } static void @@ -5020,7 +7263,7 @@ no_ready_input_callback(ErlDrvData drv_data, ErlDrvEvent event) { Port *prt = get_current_port(); report_missing_drv_callback(prt, "Input", "ready_input()"); - driver_select((ErlDrvPort) internal_port_index(prt->id), event, + driver_select(ERTS_Port2ErlDrvPort(prt), event, (ERL_DRV_READ | ERL_DRV_USE_NO_CALLBACK), 0); } @@ -5029,7 +7272,7 @@ no_ready_output_callback(ErlDrvData drv_data, ErlDrvEvent event) { Port *prt = get_current_port(); report_missing_drv_callback(prt, "Output", "ready_output()"); - driver_select((ErlDrvPort) internal_port_index(prt->id), event, + driver_select(ERTS_Port2ErlDrvPort(prt), event, (ERL_DRV_WRITE | ERL_DRV_USE_NO_CALLBACK), 0); } @@ -5064,14 +7307,18 @@ init_driver(erts_driver_t *drv, ErlDrvEntry *de, DE_Handle *handle) drv->lock = NULL; else { drv->lock = erts_alloc(ERTS_ALC_T_DRIVER_LOCK, - sizeof(erts_smp_mtx_t)); - erts_smp_mtx_init_x(drv->lock, - "driver_lock", + sizeof(erts_mtx_t)); + erts_mtx_init_x(drv->lock, + "driver_lock", #if defined(ERTS_ENABLE_LOCK_CHECK) || defined(ERTS_ENABLE_LOCK_COUNT) - am_atom_put(drv->name, sys_strlen(drv->name)) + erts_atom_put((byte *) drv->name, + sys_strlen(drv->name), + ERTS_ATOM_ENC_LATIN1, + 1), #else - NIL + NIL, #endif + 1 ); } #endif @@ -5142,7 +7389,7 @@ int erts_add_driver_entry(ErlDrvEntry *de, DE_Handle *handle, int driver_list_lo int res; if (!driver_list_locked) { - erts_smp_mtx_lock(&erts_driver_list_lock); + erts_smp_rwmtx_rwlock(&erts_driver_list_lock); } dp->next = driver_list; @@ -5171,7 +7418,7 @@ int erts_add_driver_entry(ErlDrvEntry *de, DE_Handle *handle, int driver_list_lo if (!driver_list_locked) { erts_smp_tsd_set(driver_list_lock_status_key, NULL); - erts_smp_mtx_unlock(&erts_driver_list_lock); + erts_smp_rwmtx_rwunlock(&erts_driver_list_lock); } return res; } @@ -5184,7 +7431,7 @@ int remove_driver_entry(ErlDrvEntry *drv) rec_lock = erts_smp_tsd_get(driver_list_lock_status_key); if (rec_lock == NULL) { - erts_smp_mtx_lock(&erts_driver_list_lock); + erts_smp_rwmtx_rwlock(&erts_driver_list_lock); } dp = driver_list; while (dp && dp->entry != drv) @@ -5192,7 +7439,7 @@ int remove_driver_entry(ErlDrvEntry *drv) if (dp) { if (dp->handle) { if (rec_lock == NULL) { - erts_smp_mtx_unlock(&erts_driver_list_lock); + erts_smp_rwmtx_rwunlock(&erts_driver_list_lock); } return -1; } @@ -5206,12 +7453,12 @@ int remove_driver_entry(ErlDrvEntry *drv) } erts_destroy_driver(dp); if (rec_lock == NULL) { - erts_smp_mtx_unlock(&erts_driver_list_lock); + erts_smp_rwmtx_rwunlock(&erts_driver_list_lock); } return 1; } if (rec_lock == NULL) { - erts_smp_mtx_unlock(&erts_driver_list_lock); + erts_smp_rwmtx_rwunlock(&erts_driver_list_lock); } return 0; } @@ -5241,18 +7488,22 @@ erl_drv_getenv(char *key, char *value, size_t *value_size) * - uses the fact that heart_port is registered when starting heart */ -Port *erts_get_heart_port() { +Port *erts_get_heart_port(void) +{ + int ix, max = erts_ptab_max(&erts_port); - Port* port; - Uint ix; + for (ix = 0; ix < max; ix++) { + struct reg_proc *reg; + Port *port = erts_pix2port(ix); - for(ix = 0; ix < erts_max_ports; ix++) { - port = &erts_port[ix]; + if (!port) + continue; /* only examine undead or alive ports */ - if (port->status & ERTS_PORT_SFLGS_DEAD) + if (erts_atomic32_read_nob(&port->state) & ERTS_PORT_SFLGS_DEAD) continue; /* immediate atom compare */ - if (port->reg && port->reg->name == am_heart_port) { + reg = port->common.u.alive.reg; + if (reg && reg->name == am_heart_port) { return port; } } diff --git a/erts/emulator/beam/module.c b/erts/emulator/beam/module.c index b93b1ad09a..daa6e136c5 100644 --- a/erts/emulator/beam/module.c +++ b/erts/emulator/beam/module.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 1996-2011. All Rights Reserved. + * Copyright Ericsson AB 1996-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -26,21 +26,32 @@ #include "global.h" #include "module.h" +#ifdef DEBUG +# define IF_DEBUG(x) x +#else +# define IF_DEBUG(x) +#endif + #define MODULE_SIZE 50 #define MODULE_LIMIT (64*1024) -static IndexTable module_table; +static IndexTable module_tables[ERTS_NUM_CODE_IX]; -/* - * SMP note: We don't need to look accesses to the module table because - * there is one only scheduler thread when we update it. +erts_smp_rwmtx_t the_old_code_rwlocks[ERTS_NUM_CODE_IX]; + +static erts_smp_atomic_t tot_module_bytes; + +/* SMP note: Active module table lookup and current module instance can be + * read without any locks. Old module instances are protected by + * "the_old_code_rwlocks" as purging is done on active module table. + * Staging table is protected by the "code_ix lock". */ #include "erl_smp.h" void module_info(int to, void *to_arg) { - index_info(to, to_arg, &module_table); + index_info(to, to_arg, &module_tables[erts_active_code_ix()]); } @@ -59,45 +70,67 @@ static int module_cmp(Module* tmpl, Module* obj) static Module* module_alloc(Module* tmpl) { Module* obj = (Module*) erts_alloc(ERTS_ALC_T_MODULE, sizeof(Module)); + erts_smp_atomic_add_nob(&tot_module_bytes, sizeof(Module)); obj->module = tmpl->module; - obj->code = 0; - obj->old_code = 0; - obj->code_length = 0; - obj->old_code_length = 0; + obj->curr.code = 0; + obj->old.code = 0; + obj->curr.code_length = 0; + obj->old.code_length = 0; obj->slot.index = -1; - obj->nif = NULL; - obj->old_nif = NULL; + obj->curr.nif = NULL; + obj->old.nif = NULL; + obj->curr.num_breakpoints = 0; + obj->old.num_breakpoints = 0; + obj->curr.num_traced_exports = 0; + obj->old.num_traced_exports = 0; return obj; } +static void module_free(Module* mod) +{ + erts_free(ERTS_ALC_T_MODULE, mod); + erts_smp_atomic_add_nob(&tot_module_bytes, -sizeof(Module)); +} void init_module_table(void) { HashFunctions f; + int i; f.hash = (H_FUN) module_hash; f.cmp = (HCMP_FUN) module_cmp; f.alloc = (HALLOC_FUN) module_alloc; - f.free = 0; + f.free = (HFREE_FUN) module_free; + + for (i = 0; i < ERTS_NUM_CODE_IX; i++) { + erts_index_init(ERTS_ALC_T_MODULE_TABLE, &module_tables[i], "module_code", + MODULE_SIZE, MODULE_LIMIT, f); + } - erts_index_init(ERTS_ALC_T_MODULE_TABLE, &module_table, "module_code", - MODULE_SIZE, MODULE_LIMIT, f); + for (i=0; i<ERTS_NUM_CODE_IX; i++) { + erts_smp_rwmtx_init_x(&the_old_code_rwlocks[i], "old_code", make_small(i)); + } + erts_smp_atomic_init_nob(&tot_module_bytes, 0); } Module* -erts_get_module(Eterm mod) +erts_get_module(Eterm mod, ErtsCodeIndex code_ix) { Module e; int index; + IndexTable* mod_tab; ASSERT(is_atom(mod)); + + mod_tab = &module_tables[code_ix]; + e.module = atom_val(mod); - index = index_get(&module_table, (void*) &e); + index = index_get(mod_tab, (void*) &e); if (index == -1) { return NULL; } else { - return (Module*) erts_index_lookup(&module_table, index); + return (Module*) erts_index_lookup(mod_tab, index); } } @@ -105,27 +138,101 @@ Module* erts_put_module(Eterm mod) { Module e; - int index; + IndexTable* mod_tab; + int oldsz, newsz; + Module* res; ASSERT(is_atom(mod)); ERTS_SMP_LC_ASSERT(erts_initialized == 0 - || erts_smp_thr_progress_is_blocking()); + || erts_has_code_write_permission()); + + mod_tab = &module_tables[erts_staging_code_ix()]; e.module = atom_val(mod); - index = index_put(&module_table, (void*) &e); - return (Module*) erts_index_lookup(&module_table, index); + oldsz = index_table_sz(mod_tab); + res = (Module*) index_put_entry(mod_tab, (void*) &e); + newsz = index_table_sz(mod_tab); + erts_smp_atomic_add_nob(&tot_module_bytes, (newsz - oldsz)); + return res; } -Module *module_code(int i) +Module *module_code(int i, ErtsCodeIndex code_ix) { - return (Module*) erts_index_lookup(&module_table, i); + return (Module*) erts_index_lookup(&module_tables[code_ix], i); } -int module_code_size(void) +int module_code_size(ErtsCodeIndex code_ix) { - return module_table.entries; + return module_tables[code_ix].entries; } int module_table_sz(void) { - return index_table_sz(&module_table); + return erts_smp_atomic_read_nob(&tot_module_bytes); +} + +#ifdef DEBUG +static ErtsCodeIndex dbg_load_code_ix = 0; +#endif + +static int entries_at_start_staging = 0; + +void module_start_staging(void) +{ + IndexTable* src = &module_tables[erts_active_code_ix()]; + IndexTable* dst = &module_tables[erts_staging_code_ix()]; + Module* src_mod; + Module* dst_mod; + int i, oldsz, newsz; + + ASSERT(dbg_load_code_ix == -1); + ASSERT(dst->entries <= src->entries); + + /* + * Make sure our existing modules are up-to-date + */ + for (i = 0; i < dst->entries; i++) { + src_mod = (Module*) erts_index_lookup(src, i); + dst_mod = (Module*) erts_index_lookup(dst, i); + ASSERT(src_mod->module == dst_mod->module); + + dst_mod->curr = src_mod->curr; + dst_mod->old = src_mod->old; + } + + /* + * Copy all new modules from active table + */ + oldsz = index_table_sz(dst); + for (i = dst->entries; i < src->entries; i++) { + src_mod = (Module*) erts_index_lookup(src, i); + dst_mod = (Module*) index_put_entry(dst, src_mod); + ASSERT(dst_mod != src_mod); + + dst_mod->curr = src_mod->curr; + dst_mod->old = src_mod->old; + } + newsz = index_table_sz(dst); + erts_smp_atomic_add_nob(&tot_module_bytes, (newsz - oldsz)); + + entries_at_start_staging = dst->entries; + IF_DEBUG(dbg_load_code_ix = erts_staging_code_ix()); +} + +void module_end_staging(int commit) +{ + ASSERT(dbg_load_code_ix == erts_staging_code_ix()); + + if (!commit) { /* abort */ + IndexTable* tab = &module_tables[erts_staging_code_ix()]; + int oldsz, newsz; + + ASSERT(entries_at_start_staging <= tab->entries); + oldsz = index_table_sz(tab); + index_erase_latest_from(tab, entries_at_start_staging); + newsz = index_table_sz(tab); + erts_smp_atomic_add_nob(&tot_module_bytes, (newsz - oldsz)); + } + + IF_DEBUG(dbg_load_code_ix = -1); } + diff --git a/erts/emulator/beam/module.h b/erts/emulator/beam/module.h index 694e4ab72f..5235528e98 100644 --- a/erts/emulator/beam/module.h +++ b/erts/emulator/beam/module.h @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 1996-2010. All Rights Reserved. + * Copyright Ericsson AB 1996-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -24,28 +24,72 @@ #include "index.h" #endif +struct erl_module_instance { + BeamInstr* code; + int code_length; /* Length of loaded code in bytes. */ + unsigned catches; + struct erl_module_nif* nif; + int num_breakpoints; + int num_traced_exports; +}; typedef struct erl_module { IndexSlot slot; /* Must be located at top of struct! */ int module; /* Atom index for module (not tagged). */ - BeamInstr* code; - BeamInstr* old_code; - int code_length; /* Length of loaded code in bytes. */ - int old_code_length; /* Length of old loaded code in bytes */ - unsigned catches, old_catches; - struct erl_module_nif* nif; - struct erl_module_nif* old_nif; + struct erl_module_instance curr; + struct erl_module_instance old; /* protected by "old_code" rwlock */ } Module; -Module* erts_get_module(Eterm mod); +Module* erts_get_module(Eterm mod, ErtsCodeIndex code_ix); Module* erts_put_module(Eterm mod); void init_module_table(void); +void module_start_staging(void); +void module_end_staging(int commit); void module_info(int, void *); -Module *module_code(int); -int module_code_size(void); +Module *module_code(int, ErtsCodeIndex); +int module_code_size(ErtsCodeIndex); int module_table_sz(void); +ERTS_GLB_INLINE void erts_rwlock_old_code(ErtsCodeIndex); +ERTS_GLB_INLINE void erts_rwunlock_old_code(ErtsCodeIndex); +ERTS_GLB_INLINE void erts_rlock_old_code(ErtsCodeIndex); +ERTS_GLB_INLINE void erts_runlock_old_code(ErtsCodeIndex); +#ifdef ERTS_ENABLE_LOCK_CHECK +int erts_is_old_code_rlocked(ErtsCodeIndex); +#endif + +#if ERTS_GLB_INLINE_INCL_FUNC_DEF + +extern erts_smp_rwmtx_t the_old_code_rwlocks[ERTS_NUM_CODE_IX]; + +ERTS_GLB_INLINE void erts_rwlock_old_code(ErtsCodeIndex code_ix) +{ + erts_smp_rwmtx_rwlock(&the_old_code_rwlocks[code_ix]); +} +ERTS_GLB_INLINE void erts_rwunlock_old_code(ErtsCodeIndex code_ix) +{ + erts_smp_rwmtx_rwunlock(&the_old_code_rwlocks[code_ix]); +} +ERTS_GLB_INLINE void erts_rlock_old_code(ErtsCodeIndex code_ix) +{ + erts_smp_rwmtx_rlock(&the_old_code_rwlocks[code_ix]); +} +ERTS_GLB_INLINE void erts_runlock_old_code(ErtsCodeIndex code_ix) +{ + erts_smp_rwmtx_runlock(&the_old_code_rwlocks[code_ix]); +} + +#ifdef ERTS_ENABLE_LOCK_CHECK +ERTS_GLB_INLINE int erts_is_old_code_rlocked(ErtsCodeIndex code_ix) +{ + return erts_smp_lc_rwmtx_is_rlocked(&the_old_code_rwlocks[code_ix]); +} #endif + +#endif /* ERTS_GLB_INLINE_INCL_FUNC_DEF */ + + +#endif /* !__MODULE_H__ */ diff --git a/erts/emulator/beam/ops.tab b/erts/emulator/beam/ops.tab index 9b168889dd..68fcc177ae 100644 --- a/erts/emulator/beam/ops.tab +++ b/erts/emulator/beam/ops.tab @@ -1,7 +1,7 @@ # # %CopyrightBegin% # -# Copyright Ericsson AB 1997-2012. All Rights Reserved. +# Copyright Ericsson AB 1997-2013. All Rights Reserved. # # The contents of this file are subject to the Erlang Public License, # Version 1.1, (the "License"); you may not use this file except in @@ -62,11 +62,8 @@ label L i_func_info I a a I int_code_end -i_trace_breakpoint -i_mtrace_breakpoint +i_generic_breakpoint i_debug_breakpoint -i_count_breakpoint -i_time_breakpoint i_return_time_trace i_return_to_trace i_yield @@ -522,7 +519,6 @@ apply_bif call_nif call_error_handler error_action_code -call_traced_function return_trace # @@ -767,17 +763,17 @@ allocate_init t I y ################################################################# # -# The BIFs erlang:check_process_code/2 must be called like a function, +# The BIFs erts_internal:check_process_code/2 must be called like a function, # to ensure that c_p->i (program counter) is set correctly (an ordinary # BIF call doesn't set it). # -call_ext u==2 Bif=u$bif:erlang:check_process_code/2 => i_call_ext Bif -call_ext_last u==2 Bif=u$bif:erlang:check_process_code/2 D => i_call_ext_last Bif D -call_ext_only u==2 Bif=u$bif:erlang:check_process_code/2 => i_call_ext_only Bif +call_ext u==2 Bif=u$bif:erts_internal:check_process_code/2 => i_call_ext Bif +call_ext_last u==2 Bif=u$bif:erts_internal:check_process_code/2 D => i_call_ext_last Bif D +call_ext_only u==2 Bif=u$bif:erts_internal:check_process_code/2 => i_call_ext_only Bif # -# The BIFs erlang:garbage_collect/0,1 must be called like functions, +# The BIFs erlang:garbage_collect/0 must be called like a function, # to allow them to invoke the garbage collector. (The stack pointer must # be saved and p->arity must be zeroed, which is not done on ordinary BIF calls.) # @@ -786,10 +782,6 @@ call_ext u==0 Bif=u$bif:erlang:garbage_collect/0 => i_call_ext Bif call_ext_last u==0 Bif=u$bif:erlang:garbage_collect/0 D => i_call_ext_last Bif D call_ext_only u==0 Bif=u$bif:erlang:garbage_collect/0 => i_call_ext_only Bif -call_ext u==1 Bif=u$bif:erlang:garbage_collect/1 => i_call_ext Bif -call_ext_last u==1 Bif=u$bif:erlang:garbage_collect/1 D => i_call_ext_last Bif D -call_ext_only u==1 Bif=u$bif:erlang:garbage_collect/1 => i_call_ext_only Bif - # # put/2 and erase/1 must be able to do garbage collection, so we must call # them like functions. @@ -829,16 +821,20 @@ call_ext_only Ar=u==2 Bif=u$bif:erlang:load_nif/2 => allocate u Ar | i_call_ext # -# The apply/2 and apply/3 BIFs are instructions. +# apply/2 is an instruction, not a BIF. # call_ext u==2 u$func:erlang:apply/2 => i_apply_fun call_ext_last u==2 u$func:erlang:apply/2 D => i_apply_fun_last D call_ext_only u==2 u$func:erlang:apply/2 => i_apply_fun_only -call_ext u==3 u$func:erlang:apply/3 => i_apply -call_ext_last u==3 u$func:erlang:apply/3 D => i_apply_last D -call_ext_only u==3 u$func:erlang:apply/3 => i_apply_only +# +# The apply/3 BIF is an instruction. +# + +call_ext u==3 u$bif:erlang:apply/3 => i_apply +call_ext_last u==3 u$bif:erlang:apply/3 D => i_apply_last D +call_ext_only u==3 u$bif:erlang:apply/3 => i_apply_only # # The exit/1 and throw/1 BIFs never execute the instruction following them; @@ -1021,7 +1017,7 @@ bif0 u$bif:erlang:node/0 Dst=d => node Dst bif1 Fail Bif=u$bif:erlang:get/1 Src=s Dst=d => i_get Src Dst -bif2 Jump=j u$bif:erlang:element/2 S1=s S2=s Dst=d => gen_element(Jump, S1, S2, Dst) +bif2 Jump=j u$bif:erlang:element/2 S1=s S2=rxy Dst=d => gen_element(Jump, S1, S2, Dst) bif1 Fail Bif Literal=q Dst => move Literal x | bif1 Fail Bif x Dst bif1 p Bif S1 Dst => bif1_body Bif S1 Dst @@ -1470,6 +1466,93 @@ apply I apply_last I P # +# Map instructions in R17. +# + +put_map_assoc F n Dst Live Size Rest=* => new_map F Dst Live Size Rest +put_map_assoc F Src=s Dst Live Size Rest=* => \ + update_map_assoc F Src Dst Live Size Rest +put_map_assoc F Src Dst Live Size Rest=* => \ + move Src x | update_map_assoc F x Dst Live Size Rest +put_map_exact F n Dst Live Size Rest=* => new_map F Dst Live Size Rest +put_map_exact F Src=s Dst Live Size Rest=* => \ + update_map_exact F Src Dst Live Size Rest +put_map_exact F Src Dst Live Size Rest=* => \ + move Src x | update_map_exact F x Dst Live Size Rest + +new_map j d I I +update_map_assoc j s d I I +update_map_exact j s d I I + +is_map Fail Literal=q => move Literal x | is_map Fail x +is_map Fail c => jump Fail + +%macro: is_map IsMap -fail_action +is_map f r +is_map f x +is_map f y + +## Transform has_map_field(s) #{ K1 := _, K2 := _ } + +has_map_field/3 + +has_map_fields Fail Src Size=u==1 Rest=* => gen_has_map_field(Fail,Src,Size,Rest) +has_map_fields Fail Src Size Rest=* => i_has_map_fields Fail Src Size Rest + +i_has_map_fields f s I + +has_map_field Fail Src=rxy Key=arxy => i_has_map_field Fail Src Key +has_map_field Fail Src Key => move Key x | i_has_map_field Fail Src x + +%macro: i_has_map_field HasMapField -fail_action +i_has_map_field f r a +i_has_map_field f x a +i_has_map_field f y a +i_has_map_field f r r +i_has_map_field f x r +i_has_map_field f y r +i_has_map_field f r x +i_has_map_field f x x +i_has_map_field f y x +i_has_map_field f r y +i_has_map_field f x y +i_has_map_field f y y + +## Transform get_map_elements(s) #{ K1 := V1, K2 := V2 } + +get_map_element/4 + +get_map_elements Fail Src=rxy Size=u==2 Rest=* => gen_get_map_element(Fail,Src,Size,Rest) +get_map_elements Fail Src Size Rest=* => i_get_map_elements Fail Src Size Rest + +i_get_map_elements f s I + +get_map_element Fail Src=rxy Key=ax Dst => i_get_map_element Fail Src Key Dst +get_map_element Fail Src=rxy Key=rycq Dst => \ + move Key x | i_get_map_element Fail Src x Dst +get_map_element Fail Src Key Dst => jump Fail + +%macro: i_get_map_element GetMapElement -fail_action +i_get_map_element f r a r +i_get_map_element f x a r +i_get_map_element f y a r +i_get_map_element f r a x +i_get_map_element f x a x +i_get_map_element f y a x +i_get_map_element f r a y +i_get_map_element f x a y +i_get_map_element f y a y +i_get_map_element f r x r +i_get_map_element f x x r +i_get_map_element f y x r +i_get_map_element f r x x +i_get_map_element f x x x +i_get_map_element f y x x +i_get_map_element f r x y +i_get_map_element f x x y +i_get_map_element f y x y + +# # Optimize addition and subtraction of small literals using # the i_increment/4 instruction (in bodies, not in guards). # diff --git a/erts/emulator/beam/packet_parser.c b/erts/emulator/beam/packet_parser.c index f1cfa8df39..db0e78b1a7 100644 --- a/erts/emulator/beam/packet_parser.c +++ b/erts/emulator/beam/packet_parser.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 2008-2011. All Rights Reserved. + * Copyright Ericsson AB 2008-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -67,7 +67,7 @@ static int my_strncasecmp(const char *s1, const char *s2, size_t n) #define HTTP_HDR_HASH_SIZE 53 #define HTTP_METH_HASH_SIZE 13 -#define HTTP_MAX_NAME_LEN 20 +#define HTTP_MAX_NAME_LEN 50 static char tspecial[128]; @@ -460,11 +460,9 @@ int packet_get_length(enum PacketParseType htype, hp = (struct tpkt_head*) ptr; if (hp->vrsn == TPKT_VRSN) { plen = get_int16(hp->packet_length) - hlen; - if (plen < 0) - goto error; - } - else + } else { goto error; + } goto remain; } diff --git a/erts/emulator/beam/register.c b/erts/emulator/beam/register.c index 26d64887d0..c626cb2780 100644 --- a/erts/emulator/beam/register.c +++ b/erts/emulator/beam/register.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 1996-2010. All Rights Reserved. + * Copyright Ericsson AB 1996-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -93,19 +93,14 @@ reg_safe_write_lock(Process *c_p, ErtsProcLocks *c_p_locks) reg_write_lock(); } +#endif + static ERTS_INLINE int is_proc_alive(Process *p) { - int res; - erts_pix_lock_t *pixlck = ERTS_PID2PIXLOCK(p->id); - erts_pix_lock(pixlck); - res = !p->is_exiting; - erts_pix_unlock(pixlck); - return res; + return !ERTS_PROC_IS_EXITING(p); } -#endif - void register_info(int to, void *to_arg) { int lock = !ERTS_IS_CRASH_DUMPING; @@ -180,14 +175,14 @@ int erts_register_name(Process *c_p, Eterm name, Eterm id) if (is_not_atom(name) || name == am_undefined) return res; - if (c_p->id == id) /* A very common case I think... */ + if (c_p->common.id == id) /* A very common case I think... */ proc = c_p; else { if (is_not_internal_pid(id) && is_not_internal_port(id)) return res; erts_smp_proc_unlock(c_p, ERTS_PROC_LOCK_MAIN); if (is_internal_port(id)) { - port = erts_id2port(id, NULL, 0); + port = erts_id2port(id); if (!port) goto done; } @@ -209,7 +204,7 @@ int erts_register_name(Process *c_p, Eterm name, Eterm id) r.p = proc; if (!proc) goto done; - if (proc->reg) + if (proc->common.u.alive.reg) goto done; r.pt = NULL; } @@ -217,7 +212,7 @@ int erts_register_name(Process *c_p, Eterm name, Eterm id) ASSERT(!INVALID_PORT(port, id)); ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(port)); r.pt = port; - if (r.pt->reg) + if (r.pt->common.u.alive.reg) goto done; r.p = NULL; } @@ -229,23 +224,24 @@ int erts_register_name(Process *c_p, Eterm name, Eterm id) if (IS_TRACED_FL(proc, F_TRACE_PROCS)) { trace_proc(c_p, proc, am_register, name); } - proc->reg = rp; + proc->common.u.alive.reg = rp; } else if (port && rp->pt == port) { if (IS_TRACED_FL(port, F_TRACE_PORTS)) { trace_port(port, am_register, name); } - port->reg = rp; + port->common.u.alive.reg = rp; } - if ((rp->p && rp->p->id == id) || (rp->pt && rp->pt->id == id)) { + if ((rp->p && rp->p->common.id == id) + || (rp->pt && rp->pt->common.id == id)) { res = 1; } done: reg_write_unlock(); if (port) - erts_smp_port_unlock(port); + erts_port_release(port); if (c_p != proc) { if (proc) erts_smp_proc_unlock(proc, ERTS_PROC_LOCK_MAIN); @@ -296,9 +292,9 @@ erts_whereis_name_to_id(Process *c_p, Eterm name) * is read only. */ if (rp->p) - res = rp->p->id; + res = rp->p->common.id; else if (rp->pt) - res = rp->pt->id; + res = rp->pt->common.id; break; } b = b->next; @@ -389,8 +385,7 @@ erts_whereis_name(Process *c_p, } #else if (rp->p - && ((flags & ERTS_P2P_FLG_ALLOW_OTHER_X) - || rp->p->status != P_EXITING)) + && ((flags & ERTS_P2P_FLG_ALLOW_OTHER_X) || is_proc_alive(rp->p))) *proc = rp->p; else *proc = NULL; @@ -409,19 +404,19 @@ erts_whereis_name(Process *c_p, if (pending_port) { /* Ahh! Registered port changed while reg lock was unlocked... */ - erts_smp_port_unlock(pending_port); + erts_port_release(pending_port); pending_port = NULL; } if (erts_smp_port_trylock(rp->pt) == EBUSY) { - Eterm id = rp->pt->id; /* id read only... */ + Eterm id = rp->pt->common.id; /* id read only... */ /* Unlock all locks, acquire port lock, and restart... */ if (current_c_p_locks) { erts_smp_proc_unlock(c_p, current_c_p_locks); current_c_p_locks = 0; } reg_read_unlock(); - pending_port = erts_id2port(id, NULL, 0); + pending_port = erts_id2port(id); goto restart; } } @@ -435,7 +430,7 @@ erts_whereis_name(Process *c_p, if (c_p && !current_c_p_locks) erts_smp_proc_lock(c_p, c_p_locks); if (pending_port) - erts_smp_port_unlock(pending_port); + erts_port_release(pending_port); #endif reg_read_unlock(); @@ -497,8 +492,8 @@ int erts_unregister_name(Process *c_p, current_c_p_locks = c_p_locks; } #endif - if (c_p->reg) { - r.name = c_p->reg->name; + if (c_p->common.u.alive.reg) { + r.name = c_p->common.u.alive.reg->name; } else { /* Name got unregistered while main lock was released */ res = 0; @@ -511,20 +506,20 @@ int erts_unregister_name(Process *c_p, if (port != rp->pt) { #ifdef ERTS_SMP if (port) { - ERTS_SMP_LC_ASSERT(port != c_prt); - erts_smp_port_unlock(port); + ASSERT(port != c_prt); + erts_port_release(port); port = NULL; } if (erts_smp_port_trylock(rp->pt) == EBUSY) { - Eterm id = rp->pt->id; /* id read only... */ + Eterm id = rp->pt->common.id; /* id read only... */ /* Unlock all locks, acquire port lock, and restart... */ if (current_c_p_locks) { erts_smp_proc_unlock(c_p, current_c_p_locks); current_c_p_locks = 0; } reg_write_unlock(); - port = erts_id2port(id, NULL, 0); + port = erts_id2port(id); goto restart; } #endif @@ -534,7 +529,7 @@ int erts_unregister_name(Process *c_p, ASSERT(rp->pt == port); ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(port)); - rp->pt->reg = NULL; + rp->pt->common.u.alive.reg = NULL; if (IS_TRACED_FL(port, F_TRACE_PORTS)) { trace_port(port, am_unregister, r.name); @@ -551,7 +546,7 @@ int erts_unregister_name(Process *c_p, ERTS_PROC_LOCK_MAIN); current_c_p_locks = c_p_locks; #endif - rp->p->reg = NULL; + rp->p->common.u.alive.reg = NULL; if (IS_TRACED_FL(rp->p, F_TRACE_PROCS)) { trace_proc(c_p, rp->p, am_unregister, r.name); } @@ -570,7 +565,7 @@ int erts_unregister_name(Process *c_p, reg_write_unlock(); if (c_prt != port) { if (port) { - erts_smp_port_unlock(port); + erts_port_release(port); } if (c_prt) { erts_smp_port_lock(c_prt); diff --git a/erts/emulator/beam/register.h b/erts/emulator/beam/register.h index 38e8cfbf28..7170463375 100644 --- a/erts/emulator/beam/register.h +++ b/erts/emulator/beam/register.h @@ -24,26 +24,19 @@ #ifndef __REGPROC_H__ #define __REGPROC_H__ -#ifndef __SYS_H__ #include "sys.h" -#endif - -#ifndef __HASH_H__ #include "hash.h" -#endif - -#ifndef __PROCESS_H__ #include "erl_process.h" -#endif - -struct port; +#define ERL_PORT_GET_PORT_TYPE_ONLY__ +#include "erl_port.h" +#undef ERL_PORT_GET_PORT_TYPE_ONLY__ typedef struct reg_proc { HashBucket bucket; /* MUST BE LOCATED AT TOP OF STRUCT!!! */ Process *p; /* The process registered (only one of this and 'pt' is non-NULL */ - struct port *pt; /* The port registered */ + Port *pt; /* The port registered */ Eterm name; /* Atom name */ } RegProc; @@ -55,12 +48,12 @@ int erts_register_name(Process *, Eterm, Eterm); Eterm erts_whereis_name_to_id(Process *, Eterm); void erts_whereis_name(Process *, ErtsProcLocks, Eterm, Process**, ErtsProcLocks, int, - struct port**); + Port**); Process *erts_whereis_process(Process *, ErtsProcLocks, Eterm, ErtsProcLocks, int); -int erts_unregister_name(Process *, ErtsProcLocks, struct port *, Eterm); +int erts_unregister_name(Process *, ErtsProcLocks, Port *, Eterm); #endif diff --git a/erts/emulator/beam/sys.h b/erts/emulator/beam/sys.h index 41389c8734..3d8dd9c6d0 100644 --- a/erts/emulator/beam/sys.h +++ b/erts/emulator/beam/sys.h @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 1996-2012. All Rights Reserved. + * Copyright Ericsson AB 1996-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -25,11 +25,6 @@ # define NO_FPE_SIGNALS #endif -/* xxxP __VXWORKS__ */ -#ifdef VXWORKS -#include <vxWorks.h> -#endif - #ifdef DISABLE_CHILD_WAITER_THREAD #undef ENABLE_CHILD_WAITER_THREAD #endif @@ -39,10 +34,12 @@ #define ENABLE_CHILD_WAITER_THREAD 1 #endif +#define ERTS_I64_LITERAL(X) X##LL + #if defined (__WIN32__) # include "erl_win_sys.h" -#elif defined (VXWORKS) -# include "erl_vxworks_sys.h" +#elif defined (__OSE__) +# include "erl_ose_sys.h" #else # include "erl_unix_sys.h" #ifndef UNIX @@ -91,14 +88,22 @@ typedef ERTS_SYS_FD_TYPE ErtsSysFdType; # endif #endif -#ifdef __GNUC__ -# if __GNUC__ < 3 && (__GNUC__ != 2 || __GNUC_MINOR__ < 96) -# define ERTS_LIKELY(BOOL) (BOOL) -# define ERTS_UNLIKELY(BOOL) (BOOL) -# else -# define ERTS_LIKELY(BOOL) __builtin_expect((BOOL), !0) -# define ERTS_UNLIKELY(BOOL) __builtin_expect((BOOL), 0) -# endif +#if !defined(__GNUC__) +# define ERTS_AT_LEAST_GCC_VSN__(MAJ, MIN, PL) 0 +#elif !defined(__GNUC_MINOR__) +# define ERTS_AT_LEAST_GCC_VSN__(MAJ, MIN, PL) \ + ((__GNUC__ << 24) >= (((MAJ) << 24) | ((MIN) << 12) | (PL))) +#elif !defined(__GNUC_PATCHLEVEL__) +# define ERTS_AT_LEAST_GCC_VSN__(MAJ, MIN, PL) \ + (((__GNUC__ << 24) | (__GNUC_MINOR__ << 12)) >= (((MAJ) << 24) | ((MIN) << 12) | (PL))) +#else +# define ERTS_AT_LEAST_GCC_VSN__(MAJ, MIN, PL) \ + (((__GNUC__ << 24) | (__GNUC_MINOR__ << 12) | __GNUC_PATCHLEVEL__) >= (((MAJ) << 24) | ((MIN) << 12) | (PL))) +#endif + +#if ERTS_AT_LEAST_GCC_VSN__(2, 96, 0) +# define ERTS_LIKELY(BOOL) __builtin_expect((BOOL), !0) +# define ERTS_UNLIKELY(BOOL) __builtin_expect((BOOL), 0) #else # define ERTS_LIKELY(BOOL) (BOOL) # define ERTS_UNLIKELY(BOOL) (BOOL) @@ -113,6 +118,16 @@ typedef ERTS_SYS_FD_TYPE ErtsSysFdType; # define ERTS_DECLARE_DUMMY(X) X #endif +#if !defined(__func__) +# if !defined(__STDC_VERSION__) || __STDC_VERSION__ < 199901L +# if !defined(__GNUC__) || __GNUC__ < 2 +# define __func__ "[unknown_function]" +# else +# define __func__ __FUNCTION__ +# endif +# endif +#endif + #if defined(DEBUG) || defined(ERTS_ENABLE_LOCK_CHECK) # undef ERTS_CAN_INLINE # define ERTS_CAN_INLINE 0 @@ -136,19 +151,37 @@ typedef ERTS_SYS_FD_TYPE ErtsSysFdType; # define ERTS_EXIT_AFTER_DUMP exit #endif +/* In VC++, noreturn is a declspec that has to be before the types, + * but in GNUC it is an att ribute to be placed between return type + * and function name, hence __decl_noreturn <types> __noreturn <function name> + * + * at some platforms (e.g. Android) __noreturn is defined at sys/cdef.h + */ +#if __GNUC__ +# define __decl_noreturn +# ifndef __noreturn +# define __noreturn __attribute__((noreturn)) +# endif +#else +# if defined(__WIN32__) && defined(_MSC_VER) +# define __noreturn +# define __decl_noreturn __declspec(noreturn) +# else +# define __noreturn +# define __decl_noreturn +# endif +#endif + +#define ERTS_ASSERT(e) \ + ((void) ((e) ? 1 : (erl_assert_error(#e, __func__, __FILE__, __LINE__), 0))) + +__decl_noreturn void __noreturn erl_assert_error(const char* expr, const char *func, + const char* file, int line); + #ifdef DEBUG -# define ASSERT(e) \ - if (e) { \ - ; \ - } else { \ - erl_assert_error(#e, __FILE__, __LINE__); \ - } -# define ASSERT_EXPR(e) \ - ((void) ((e) ? 1 : (erl_assert_error(#e, __FILE__, __LINE__), 0))) -void erl_assert_error(char* expr, char* file, int line); +# define ASSERT(e) ERTS_ASSERT(e) #else -# define ASSERT(e) -# define ASSERT_EXPR(e) ((void) 1) +# define ASSERT(e) ((void) 1) #endif /* @@ -172,35 +205,17 @@ void erl_assert_error(char* expr, char* file, int line); # define const #endif -#ifdef VXWORKS -/* Replace VxWorks' printf with a real one that does fprintf(stdout, ...) */ -int real_printf(const char *fmt, ...); -# define printf real_printf -#endif - -/* In VC++, noreturn is a declspec that has to be before the types, - * but in GNUC it is an att ribute to be placed between return type - * and function name, hence __decl_noreturn <types> __noreturn <function name> - */ -#if __GNUC__ -# define __decl_noreturn -# define __noreturn __attribute__((noreturn)) -# undef __deprecated -# if __GNUC__ >= 3 -# define __deprecated __attribute__((deprecated)) -# else -# define __deprecated -# endif +#undef __deprecated +#if ERTS_AT_LEAST_GCC_VSN__(3, 0, 0) +# define __deprecated __attribute__((deprecated)) #else -# if defined(__WIN32__) && defined(_MSC_VER) -# define __noreturn -# define __decl_noreturn __declspec(noreturn) -# else -# define __noreturn -# define __decl_noreturn -# endif # define __deprecated #endif +#if ERTS_AT_LEAST_GCC_VSN__(3, 0, 4) +# define erts_align_attribute(SZ) __attribute__ ((aligned (SZ))) +#else +# define erts_align_attribute(SZ) +#endif /* ** Data types: @@ -229,9 +244,11 @@ int real_printf(const char *fmt, ...); #if SIZEOF_VOID_P == 8 #undef ARCH_32 #define ARCH_64 +#define ERTS_SIZEOF_TERM 8 #elif SIZEOF_VOID_P == 4 #define ARCH_32 #undef ARCH_64 +#define ERTS_SIZEOF_TERM 4 #else #error Neither 32 nor 64 bit architecture #endif @@ -239,6 +256,8 @@ int real_printf(const char *fmt, ...); # define HALFWORD_HEAP 1 # define HALFWORD_ASSERT 0 # define ASSERT_HALFWORD(COND) ASSERT(COND) +# undef ERTS_SIZEOF_TERM +# define ERTS_SIZEOF_TERM 4 #else # define HALFWORD_HEAP 0 # define HALFWORD_ASSERT 0 @@ -255,6 +274,7 @@ int real_printf(const char *fmt, ...); typedef unsigned int Eterm; typedef unsigned int Uint; typedef int Sint; +#define ERTS_UINT_MAX UINT_MAX #define ERTS_SIZEOF_ETERM SIZEOF_INT #define ErtsStrToSint strtol #else @@ -266,16 +286,22 @@ typedef unsigned long UWord; typedef long SWord; #define SWORD_CONSTANT(Const) Const##L #define UWORD_CONSTANT(Const) Const##UL +#define ERTS_UWORD_MAX ULONG_MAX +#define ERTS_SWORD_MAX LONG_MAX #elif SIZEOF_VOID_P == SIZEOF_INT typedef unsigned int UWord; typedef int SWord; #define SWORD_CONSTANT(Const) Const #define UWORD_CONSTANT(Const) Const##U +#define ERTS_UWORD_MAX UINT_MAX +#define ERTS_SWORD_MAX INT_MAX #elif SIZEOF_VOID_P == SIZEOF_LONG_LONG typedef unsigned long long UWord; typedef long long SWord; #define SWORD_CONSTANT(Const) Const##LL #define UWORD_CONSTANT(Const) Const##ULL +#define ERTS_UWORD_MAX ULLONG_MAX +#define ERTS_SWORD_MAX LLONG_MAX #else #error Found no appropriate type to use for 'Eterm', 'Uint' and 'Sint' #endif @@ -288,6 +314,8 @@ typedef unsigned long Uint; typedef long Sint; #define SWORD_CONSTANT(Const) Const##L #define UWORD_CONSTANT(Const) Const##UL +#define ERTS_UWORD_MAX ULONG_MAX +#define ERTS_SWORD_MAX LONG_MAX #define ERTS_SIZEOF_ETERM SIZEOF_LONG #define ErtsStrToSint strtol #elif SIZEOF_VOID_P == SIZEOF_INT @@ -296,6 +324,8 @@ typedef unsigned int Uint; typedef int Sint; #define SWORD_CONSTANT(Const) Const #define UWORD_CONSTANT(Const) Const##U +#define ERTS_UWORD_MAX UINT_MAX +#define ERTS_SWORD_MAX INT_MAX #define ERTS_SIZEOF_ETERM SIZEOF_INT #define ErtsStrToSint strtol #elif SIZEOF_VOID_P == SIZEOF_LONG_LONG @@ -304,6 +334,8 @@ typedef unsigned long long Uint; typedef long long Sint; #define SWORD_CONSTANT(Const) Const##LL #define UWORD_CONSTANT(Const) Const##ULL +#define ERTS_UWORD_MAX ULLONG_MAX +#define ERTS_SWORD_MAX LLONG_MAX #define ERTS_SIZEOF_ETERM SIZEOF_LONG_LONG #if defined(__WIN32__) #define ErtsStrToSint _strtoi64 @@ -316,6 +348,7 @@ typedef long long Sint; typedef Uint UWord; typedef Sint SWord; +#define ERTS_UINT_MAX ERTS_UWORD_MAX #endif /* HALFWORD_HEAP */ @@ -365,6 +398,27 @@ typedef unsigned char byte; #error 64-bit architecture, but no appropriate type to use for Uint64 and Sint64 found #endif +#ifdef WORDS_BIGENDIAN +# define ERTS_HUINT_HVAL_HIGH 0 +# define ERTS_HUINT_HVAL_LOW 1 +#else +# define ERTS_HUINT_HVAL_HIGH 1 +# define ERTS_HUINT_HVAL_LOW 0 +#endif +#if ERTS_SIZEOF_TERM == 8 +typedef union { + Uint val; + Uint32 hval[2]; +} HUint; +#elif ERTS_SIZEOF_TERM == 4 +typedef union { + Uint val; + Uint16 hval[2]; +} HUint; +#else +#error "Unsupported size of term" +#endif + # define ERTS_EXTRA_DATA_ALIGN_SZ(X) \ (((size_t) 8) - (((size_t) (X)) & ((size_t) 7))) @@ -471,38 +525,28 @@ static unsigned long zero_value = 0, one_value = 1; # define SET_NONBLOCKING(fd) ioctlsocket((fd), FIONBIO, &one_value) # else -# ifdef VXWORKS -# include <fcntl.h> /* xxxP added for O_WRONLY etc ... macro:s ... */ -# include <ioLib.h> -static const int zero_value = 0, one_value = 1; -# define SET_BLOCKING(fd) ioctl((fd), FIONBIO, (int)&zero_value) -# define SET_NONBLOCKING(fd) ioctl((fd), FIONBIO, (int)&one_value) -# define ERRNO_BLOCK EWOULDBLOCK - -# else -# ifdef NB_FIONBIO /* Old BSD */ -# include <sys/ioctl.h> +# ifdef NB_FIONBIO /* Old BSD */ +# include <sys/ioctl.h> static const int zero_value = 0, one_value = 1; -# define SET_BLOCKING(fd) ioctl((fd), FIONBIO, &zero_value) -# define SET_NONBLOCKING(fd) ioctl((fd), FIONBIO, &one_value) -# define ERRNO_BLOCK EWOULDBLOCK -# else /* !NB_FIONBIO */ -# include <fcntl.h> -# ifdef NB_O_NDELAY /* Nothing needs this? */ -# define NB_FLAG O_NDELAY -# ifndef ERRNO_BLOCK /* allow override (e.g. EAGAIN) via Makefile */ -# define ERRNO_BLOCK EWOULDBLOCK -# endif -# else /* !NB_O_NDELAY */ /* The True Way - POSIX!:-) */ -# define NB_FLAG O_NONBLOCK -# define ERRNO_BLOCK EAGAIN -# endif /* !NB_O_NDELAY */ -# define SET_BLOCKING(fd) fcntl((fd), F_SETFL, \ - fcntl((fd), F_GETFL, 0) & ~NB_FLAG) -# define SET_NONBLOCKING(fd) fcntl((fd), F_SETFL, \ - fcntl((fd), F_GETFL, 0) | NB_FLAG) -# endif /* !NB_FIONBIO */ -# endif /* _WXWORKS_ */ +# define SET_BLOCKING(fd) ioctl((fd), FIONBIO, &zero_value) +# define SET_NONBLOCKING(fd) ioctl((fd), FIONBIO, &one_value) +# define ERRNO_BLOCK EWOULDBLOCK +# else /* !NB_FIONBIO */ +# include <fcntl.h> +# ifdef NB_O_NDELAY /* Nothing needs this? */ +# define NB_FLAG O_NDELAY +# ifndef ERRNO_BLOCK /* allow override (e.g. EAGAIN) via Makefile */ +# define ERRNO_BLOCK EWOULDBLOCK +# endif +# else /* !NB_O_NDELAY */ /* The True Way - POSIX!:-) */ +# define NB_FLAG O_NONBLOCK +# define ERRNO_BLOCK EAGAIN +# endif /* !NB_O_NDELAY */ +# define SET_BLOCKING(fd) fcntl((fd), F_SETFL, \ + fcntl((fd), F_GETFL, 0) & ~NB_FLAG) +# define SET_NONBLOCKING(fd) fcntl((fd), F_SETFL, \ + fcntl((fd), F_GETFL, 0) | NB_FLAG) +# endif /* !NB_FIONBIO */ # endif /* !__WIN32__ */ #endif /* WANT_NONBLOCKING */ @@ -513,6 +557,10 @@ __decl_noreturn void __noreturn erl_exit(int n, char*, ...); #define ERTS_ABORT_EXIT (INT_MIN + 1) /* no crash dump; only abort() */ #define ERTS_DUMP_EXIT (INT_MIN + 2) /* crash dump; then exit() */ +#define ERTS_INTERNAL_ERROR(What) \ + erl_exit(ERTS_ABORT_EXIT, "%s:%d:%s(): Internal error: %s\n", \ + __FILE__, __LINE__, __func__, What) + Eterm erts_check_io_info(void *p); /* Size of misc memory allocated from system dependent code */ @@ -587,6 +635,7 @@ typedef struct _SysDriverOpts { char *wd; /* Working directory. */ unsigned spawn_type; /* Bitfield of ERTS_SPAWN_DRIVER | ERTS_SPAWN_EXTERNAL | both*/ + int parallelism; /* Optimize for parallelism */ } SysDriverOpts; extern char *erts_default_arg0; @@ -626,8 +675,7 @@ typedef struct { #define ERTS_SYS_DDLL_ERROR_INIT {NULL} extern void erts_sys_ddll_free_error(ErtsSysDdllError*); extern void erl_sys_ddll_init(void); /* to initialize mutexes etc */ -extern int erts_sys_ddll_open2(char *path, void **handle, ErtsSysDdllError*); -#define erts_sys_ddll_open(P,H) erts_sys_ddll_open2(P,H,NULL) +extern int erts_sys_ddll_open(const char *path, void **handle, ErtsSysDdllError*); extern int erts_sys_ddll_open_noext(char *path, void **handle, ErtsSysDdllError*); extern int erts_sys_ddll_load_driver_init(void *handle, void **function); extern int erts_sys_ddll_load_nif_init(void *handle, void **function,ErtsSysDdllError*); @@ -635,7 +683,7 @@ extern int erts_sys_ddll_close2(void *handle, ErtsSysDdllError*); #define erts_sys_ddll_close(H) erts_sys_ddll_close2(H,NULL) extern void *erts_sys_ddll_call_init(void *function); extern void *erts_sys_ddll_call_nif_init(void *function); -extern int erts_sys_ddll_sym2(void *handle, char *name, void **function, ErtsSysDdllError*); +extern int erts_sys_ddll_sym2(void *handle, const char *name, void **function, ErtsSysDdllError*); #define erts_sys_ddll_sym(H,N,F) erts_sys_ddll_sym2(H,N,F,NULL) extern char *erts_sys_ddll_error(int code); @@ -697,10 +745,13 @@ char * getenv_string(GETENV_STATE *); void fini_getenv_state(GETENV_STATE *); /* xxxP */ +#define SYS_DEFAULT_FLOAT_DECIMALS 20 void init_sys_float(void); int sys_chars_to_double(char*, double*); -int sys_double_to_chars(double, char*); -void sys_get_pid(char *); +int sys_double_to_chars(double, char*, size_t); +int sys_double_to_chars_ext(double, char*, size_t, size_t); +int sys_double_to_chars_fast(double, char*, int, int, int); +void sys_get_pid(char *, size_t); /* erts_sys_putenv() returns, 0 on success and a value != 0 on failure. */ int erts_sys_putenv(char *key, char *value); @@ -714,6 +765,8 @@ int erts_sys_getenv(char *key, char *value, size_t *size); int erts_sys_getenv_raw(char *key, char *value, size_t *size); /* erts_sys_getenv__() is only allowed to be used in early init phase */ int erts_sys_getenv__(char *key, char *value, size_t *size); +/* erst_sys_unsetenv() returns 0 on success and a value != 0 on failure. */ +int erts_sys_unsetenv(char *key); /* Easier to use, but not as efficient, environment functions */ char *erts_read_env(char *key); @@ -858,13 +911,6 @@ erts_refc_read(erts_refc_t *refcp, erts_aint_t min_val) extern int erts_use_kernel_poll; #endif -#if defined(VXWORKS) -/* NOTE! sys_calloc2 does not exist on other - platforms than VxWorks and OSE */ -void* sys_calloc2(Uint, Uint); -#endif /* VXWORKS || OSE */ - - #define sys_memcpy(s1,s2,n) memcpy(s1,s2,n) #define sys_memmove(s1,s2,n) memmove(s1,s2,n) #define sys_memcmp(s1,s2,n) memcmp(s1,s2,n) @@ -971,43 +1017,6 @@ void erl_bin_write(unsigned char *, int, int); # define DEBUGF(x) #endif - -#ifdef VXWORKS -/* This includes redefines of malloc etc - this should be done after sys_alloc, etc, above */ -# include "reclaim.h" -/*********************Malloc and friends************************ - * There is a problem with the naming of malloc and friends, - * malloc is used throughout sys.c and the resolver to mean save_alloc, - * but it should actually mean either sys_alloc or sys_alloc2, - * so the definitions from reclaim_master.h are not any - * good, i redefine the malloc family here, although it's quite - * ugly, actually it would be preferrable to use the - * names sys_alloc and so on throughout the offending code, but - * that will be saved as an later exercise... - * I also add an own calloc, to make the BSD resolver source happy. - ***************************************************************/ -/* Undefine malloc and friends */ -# ifdef malloc -# undef malloc -# endif -# ifdef calloc -# undef calloc -# endif -# ifdef realloc -# undef realloc -# endif -# ifdef free -# undef free -# endif -/* Redefine malloc and friends */ -# define malloc sys_alloc -# define calloc sys_calloc -# define realloc sys_realloc -# define free sys_free - -#endif - #ifdef __WIN32__ #ifdef ARCH_64 #define ERTS_ALLOC_ALIGN_BYTES 16 @@ -1021,32 +1030,56 @@ void erl_bin_write(unsigned char *, int, int); #define ERTS_SMALL_ABS(Small) labs(Small) #endif +#ifndef ERTS_HAVE_ERTS_SYS_ALIGNED_ALLOC +# define ERTS_HAVE_ERTS_SYS_ALIGNED_ALLOC 0 +#endif #ifdef __WIN32__ - void call_break_handler(void); char* last_error(void); char* win32_errorstr(int); - - #endif /************************************************************************ * Find out the native filename encoding of the process (look at locale of * Unix processes and just do UTF16 on windows ************************************************************************/ -#define ERL_FILENAME_UNKNOWN 0 -#define ERL_FILENAME_LATIN1 1 -#define ERL_FILENAME_UTF8 2 -#define ERL_FILENAME_UTF8_MAC 3 -#define ERL_FILENAME_WIN_WCHAR 4 +#define ERL_FILENAME_UNKNOWN (0) +#define ERL_FILENAME_LATIN1 (1) +#define ERL_FILENAME_UTF8 (2) +#define ERL_FILENAME_UTF8_MAC (3) +#define ERL_FILENAME_WIN_WCHAR (4) + +/************************************************************************ + * If a filename in for example list_dir is not in the right encoding, it + * will be skipped in the resulting list, but depending on a startup setting + * we will inform the user in different ways. These macros define the + * different reactions to wrongly coded filenames. In the error case an + * exception will be thrown by prim_file. + ************************************************************************/ +#define ERL_FILENAME_WARNING_WARNING (0) +#define ERL_FILENAME_WARNING_IGNORE (1) +#define ERL_FILENAME_WARNING_ERROR (2) + +/*********************************************************************** + * The user can request a range of character that he/she consider + * printable. Currently this can be either latin1 or unicode, but + * in the future a set of ranges, or languages, could be specified. + ***********************************************************************/ +#define ERL_PRINTABLE_CHARACTERS_LATIN1 (0) +#define ERL_PRINTABLE_CHARACTERS_UNICODE (1) int erts_get_native_filename_encoding(void); /* The set function is only to be used by erl_init! */ -void erts_set_user_requested_filename_encoding(int encoding); +void erts_set_user_requested_filename_encoding(int encoding, int warning); int erts_get_user_requested_filename_encoding(void); +int erts_get_filename_warning_type(void); +/* This function is called from erl_init. The setting is read by BIF's + in io/io_lib. Setting is not atomic. */ +void erts_set_printable_characters(int range); +/* Get the setting (ERL_PRINTABLE_CHARACTERS_{LATIN1|UNICODE} */ +int erts_get_printable_characters(void); void erts_init_sys_common_misc(void); #endif - diff --git a/erts/emulator/beam/time.c b/erts/emulator/beam/time.c index 932d157cd8..2fd8e0cf00 100644 --- a/erts/emulator/beam/time.c +++ b/erts/emulator/beam/time.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 1996-2011. All Rights Reserved. + * Copyright Ericsson AB 1996-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -105,7 +105,14 @@ static ErlTimer *tiw_min_ptr; /* END tiw_lock protected variables */ /* Actual interval time chosen by sys_init_time() */ -static int itime; /* Constant after init */ + +#if SYS_CLOCK_RESOLUTION == 1 +# define TIW_ITIME 1 +# define TIW_ITIME_IS_CONSTANT +#else +static int tiw_itime; /* Constant after init */ +# define TIW_ITIME tiw_itime +#endif erts_smp_atomic32_t do_time; /* set at clock interrupt */ static ERTS_INLINE erts_short_time_t do_time_read(void) @@ -123,7 +130,7 @@ static ERTS_INLINE void do_time_init(void) erts_smp_atomic32_init_nob(&do_time, 0); } -/* get the time (in units of itime) to the next timeout, +/* get the time (in units of TIW_ITIME) to the next timeout, or -1 if there are no timeouts */ static erts_short_time_t next_time_internal(void) /* PRE: tiw_lock taken by caller */ @@ -305,11 +312,18 @@ erts_timer_wheel_memory_size(void) void erts_init_time(void) { - int i; + int i, itime; /* system dependent init; must be done before do_time_init() if timer thread is enabled */ itime = erts_init_time_sup(); +#ifdef TIW_ITIME_IS_CONSTANT + if (itime != TIW_ITIME) { + erl_exit(ERTS_ABORT_EXIT, "timer resolution mismatch %d != %d", itime, TIW_ITIME); + } +#else + tiw_itime = itime; +#endif erts_smp_mtx_init(&tiw_lock, "timer_wheel"); @@ -340,7 +354,7 @@ insert_timer(ErlTimer* p, Uint t) * * (x + y - 1)/y is precisely the "number of bins" formula. */ - ticks = (t + itime - 1) / itime; + ticks = (t + (TIW_ITIME - 1)) / TIW_ITIME; /* * Ticks must be a Uint64, or the addition may overflow here, @@ -455,7 +469,7 @@ erts_time_left(ErlTimer *p) erts_smp_mtx_unlock(&tiw_lock); - return (Uint) left * itime; + return (Uint) left * TIW_ITIME; } #ifdef DEBUG diff --git a/erts/emulator/beam/utils.c b/erts/emulator/beam/utils.c index bd708ceee6..55f9e68e78 100644 --- a/erts/emulator/beam/utils.c +++ b/erts/emulator/beam/utils.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 1996-2012. All Rights Reserved. + * Copyright Ericsson AB 1996-2014. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -31,6 +31,7 @@ #include "bif.h" #include "erl_binary.h" #include "erl_bits.h" +#include "erl_map.h" #include "packet_parser.h" #include "erl_gc.h" #define ERTS_WANT_DB_INTERNAL__ @@ -46,6 +47,7 @@ #include "erl_thr_queue.h" #include "erl_sched_spec_pre_alloc.h" #include "beam_bp.h" +#include "erl_ptab.h" #undef M_TRIM_THRESHOLD #undef M_TOP_PAD @@ -184,39 +186,41 @@ erts_set_hole_marker(Eterm* ptr, Uint sz) * Helper function for the ESTACK macros defined in global.h. */ void -erl_grow_stack(Eterm** start, Eterm** sp, Eterm** end) +erl_grow_estack(ErtsEStack* s, Eterm* default_estack) { - Uint old_size = (*end - *start); + Uint old_size = (s->end - s->start); Uint new_size = old_size * 2; - Uint sp_offs = *sp - *start; - if (new_size > 2 * DEF_ESTACK_SIZE) { - *start = erts_realloc(ERTS_ALC_T_ESTACK, (void *) *start, new_size*sizeof(Eterm)); + Uint sp_offs = s->sp - s->start; + if (s->start != default_estack) { + s->start = erts_realloc(s->alloc_type, s->start, + new_size*sizeof(Eterm)); } else { - Eterm* new_ptr = erts_alloc(ERTS_ALC_T_ESTACK, new_size*sizeof(Eterm)); - sys_memcpy(new_ptr, *start, old_size*sizeof(Eterm)); - *start = new_ptr; + Eterm* new_ptr = erts_alloc(s->alloc_type, new_size*sizeof(Eterm)); + sys_memcpy(new_ptr, s->start, old_size*sizeof(Eterm)); + s->start = new_ptr; } - *end = *start + new_size; - *sp = *start + sp_offs; + s->end = s->start + new_size; + s->sp = s->start + sp_offs; } /* - * Helper function for the ESTACK macros defined in global.h. + * Helper function for the WSTACK macros defined in global.h. */ void -erl_grow_wstack(UWord** start, UWord** sp, UWord** end) +erl_grow_wstack(ErtsWStack* s, UWord* default_wstack) { - Uint old_size = (*end - *start); + Uint old_size = (s->wend - s->wstart); Uint new_size = old_size * 2; - Uint sp_offs = *sp - *start; - if (new_size > 2 * DEF_ESTACK_SIZE) { - *start = erts_realloc(ERTS_ALC_T_ESTACK, (void *) *start, new_size*sizeof(UWord)); + Uint sp_offs = s->wsp - s->wstart; + if (s->wstart != default_wstack) { + s->wstart = erts_realloc(s->alloc_type, s->wstart, + new_size*sizeof(UWord)); } else { - UWord* new_ptr = erts_alloc(ERTS_ALC_T_ESTACK, new_size*sizeof(UWord)); - sys_memcpy(new_ptr, *start, old_size*sizeof(UWord)); - *start = new_ptr; + UWord* new_ptr = erts_alloc(s->alloc_type, new_size*sizeof(UWord)); + sys_memcpy(new_ptr, s->wstart, old_size*sizeof(UWord)); + s->wstart = new_ptr; } - *end = *start + new_size; - *sp = *start + sp_offs; + s->wend = s->wstart + new_size; + s->wsp = s->wstart + sp_offs; } /* CTYPE macros */ @@ -254,7 +258,7 @@ erl_grow_wstack(UWord** start, UWord** sp, UWord** end) * Returns -1 if not a proper list (i.e. not terminated with NIL) */ int -list_length(Eterm list) +erts_list_length(Eterm list) { int i = 0; @@ -268,16 +272,42 @@ list_length(Eterm list) return i; } -Uint erts_fit_in_bits(Uint n) +static const struct { + Sint64 mask; + int bits; +} fib_data[] = {{ERTS_I64_LITERAL(0x2), 1}, + {ERTS_I64_LITERAL(0xc), 2}, + {ERTS_I64_LITERAL(0xf0), 4}, + {ERTS_I64_LITERAL(0xff00), 8}, + {ERTS_I64_LITERAL(0xffff0000), 16}, + {ERTS_I64_LITERAL(0xffffffff00000000), 32}}; + +static ERTS_INLINE int +fit_in_bits(Sint64 value, int start) { - Uint i; + int bits = 0; + int i; - i = 0; - while (n > 0) { - i++; - n >>= 1; - } - return i; + for (i = start; i >= 0; i--) { + if (value & fib_data[i].mask) { + value >>= fib_data[i].bits; + bits |= fib_data[i].bits; + } + } + + bits++; + + return bits; +} + +int erts_fit_in_bits_int64(Sint64 value) +{ + return fit_in_bits(value, 5); +} + +int erts_fit_in_bits_int32(Sint32 value) +{ + return fit_in_bits((Sint64) (Uint32) value, 4); } int @@ -344,7 +374,7 @@ Eterm erts_bld_atom(Uint **hpp, Uint *szp, char *str) { if (hpp) - return am_atom_put(str, sys_strlen(str)); + return erts_atom_put((byte *) str, sys_strlen(str), ERTS_ATOM_ENC_LATIN1, 1); else return THE_NON_VALUE; } @@ -549,8 +579,8 @@ erts_bld_2tup_list(Uint **hpp, Uint *szp, } Eterm -erts_bld_atom_uint_2tup_list(Uint **hpp, Uint *szp, - Sint length, Eterm atoms[], Uint uints[]) +erts_bld_atom_uword_2tup_list(Uint **hpp, Uint *szp, + Sint length, Eterm atoms[], UWord uints[]) { Sint i; Eterm res = THE_NON_VALUE; @@ -705,6 +735,8 @@ erts_bld_atom_2uint_3tup_list(Uint **hpp, Uint *szp, Sint length, #define FUNNY_NUMBER10 268440479 #define FUNNY_NUMBER11 268440577 #define FUNNY_NUMBER12 268440581 +#define FUNNY_NUMBER13 268440593 +#define FUNNY_NUMBER14 268440611 static Uint32 hash_binary_bytes(Eterm bin, Uint sz, Uint32 hash) @@ -756,10 +788,10 @@ Uint32 make_hash(Eterm term_arg) unsigned op; /* Must not collide with the real tag_val_def's: */ -#define MAKE_HASH_TUPLE_OP 0x10 -#define MAKE_HASH_FUN_OP 0x11 -#define MAKE_HASH_CDR_PRE_OP 0x12 -#define MAKE_HASH_CDR_POST_OP 0x13 +#define MAKE_HASH_TUPLE_OP 0x11 +#define MAKE_HASH_TERM_ARRAY_OP 0x12 +#define MAKE_HASH_CDR_PRE_OP 0x13 +#define MAKE_HASH_CDR_POST_OP 0x14 /* ** Convenience macro for calculating a bytewise hash on an unsigned 32 bit @@ -848,7 +880,7 @@ tail_recur: hash = hash*FUNNY_NUMBER2 + funp->fe->old_uniq; if (num_free > 0) { if (num_free > 1) { - WSTACK_PUSH3(stack, (UWord) &funp->env[1], (num_free-1), MAKE_HASH_FUN_OP); + WSTACK_PUSH3(stack, (UWord) &funp->env[1], (num_free-1), MAKE_HASH_TERM_ARRAY_OP); } term = funp->env[0]; goto tail_recur; @@ -938,6 +970,24 @@ tail_recur: hash *= is_neg ? FUNNY_NUMBER4 : FUNNY_NUMBER3; break; } + case MAP_DEF: + { + map_t *mp = (map_t *)map_val(term); + int size = map_get_size(mp); + Eterm *ks = map_get_keys(mp); + Eterm *vs = map_get_values(mp); + + /* Use a prime with size to remedy some of + * the {} and <<>> hash problems */ + hash = hash*FUNNY_NUMBER13 + FUNNY_NUMBER14 + size; + if (size == 0) + break; + + /* push values first */ + WSTACK_PUSH3(stack, (UWord)vs, (UWord) size, MAKE_HASH_TERM_ARRAY_OP); + WSTACK_PUSH3(stack, (UWord)ks, (UWord) size, MAKE_HASH_TERM_ARRAY_OP); + break; + } case TUPLE_DEF: { Eterm* ptr = tuple_val(term); @@ -947,7 +997,7 @@ tail_recur: op = MAKE_HASH_TUPLE_OP; }/*fall through*/ case MAKE_HASH_TUPLE_OP: - case MAKE_HASH_FUN_OP: + case MAKE_HASH_TERM_ARRAY_OP: { Uint i = (Uint) WSTACK_POP(stack); Eterm* ptr = (Eterm*) WSTACK_POP(stack); @@ -1041,9 +1091,11 @@ Uint32 make_hash2(Eterm term) { Uint32 hash; + Uint32 hash_xor_keys = 0; + Uint32 hash_xor_values = 0; DeclareTmpHeapNoproc(tmp_big,2); -/* (HCONST * {2, ..., 14}) mod 2^32 */ +/* (HCONST * {2, ..., 16}) mod 2^32 */ #define HCONST_2 0x3c6ef372UL #define HCONST_3 0xdaa66d2bUL #define HCONST_4 0x78dde6e4UL @@ -1058,6 +1110,11 @@ make_hash2(Eterm term) #define HCONST_13 0x08d12e65UL #define HCONST_14 0xa708a81eUL #define HCONST_15 0x454021d7UL +#define HCONST_16 0xe3779b90UL + +#define HASH_MAP_TAIL (_make_header(1,_TAG_HEADER_REF)) +#define HASH_MAP_KEY (_make_header(2,_TAG_HEADER_REF)) +#define HASH_MAP_VAL (_make_header(3,_TAG_HEADER_REF)) #define UINT32_HASH_2(Expr1, Expr2, AConst) \ do { \ @@ -1153,11 +1210,45 @@ make_hash2(Eterm term) UINT32_HASH(arity, HCONST_9); if (arity == 0) /* Empty tuple */ goto hash2_common; - for (i = arity; i >= 2; i--) { + for (i = arity; i >= 1; i--) { tmp = elem[i]; ESTACK_PUSH(s, tmp); } - term = elem[1]; + goto hash2_common; + } + break; + case MAP_SUBTAG: + { + map_t *mp = (map_t *)map_val(term); + int i; + int size = map_get_size(mp); + Eterm *ks = map_get_keys(mp); + Eterm *vs = map_get_values(mp); + UINT32_HASH(size, HCONST_16); + if (size == 0) { + goto hash2_common; + } + ESTACK_PUSH(s, hash_xor_values); + ESTACK_PUSH(s, hash_xor_keys); + ESTACK_PUSH(s, hash); + ESTACK_PUSH(s, HASH_MAP_TAIL); + hash = 0; + hash_xor_keys = 0; + hash_xor_values = 0; + for (i = size - 1; i >= 0; i--) { + tmp = vs[i]; + ESTACK_PUSH(s, HASH_MAP_VAL); + ESTACK_PUSH(s, tmp); + } + /* We do not want to expose the tuple representation. + * Do not push the keys as a tuple. + */ + for (i = size - 1; i >= 0; i--) { + tmp = ks[i]; + ESTACK_PUSH(s, HASH_MAP_KEY); + ESTACK_PUSH(s, tmp); + } + goto hash2_common; } break; case EXPORT_SUBTAG: @@ -1292,7 +1383,7 @@ make_hash2(Eterm term) { FloatDef ff; GET_DOUBLE(term, ff); -#if defined(WORDS_BIGENDIAN) +#if defined(WORDS_BIGENDIAN) || defined(DOUBLE_MIDDLE_ENDIAN) UINT32_HASH_2(ff.fw[0], ff.fw[1], HCONST_12); #else UINT32_HASH_2(ff.fw[1], ff.fw[0], HCONST_12); @@ -1351,15 +1442,47 @@ make_hash2(Eterm term) default: erl_exit(1, "Invalid tag in make_hash2(0x%X)\n", term); hash2_common: + + /* Uint32 hash always has the hash value of the previous term, + * compounded or otherwise. + */ + if (ESTACK_ISEMPTY(s)) { DESTROY_ESTACK(s); UnUseTmpHeapNoproc(2); return hash; } + term = ESTACK_POP(s); + + switch (term) { + case HASH_MAP_TAIL: { + hash = (Uint32) ESTACK_POP(s); + UINT32_HASH(hash_xor_keys, HCONST_16); + UINT32_HASH(hash_xor_values, HCONST_16); + hash_xor_keys = (Uint32) ESTACK_POP(s); + hash_xor_values = (Uint32) ESTACK_POP(s); + goto hash2_common; + } + case HASH_MAP_KEY: + hash_xor_keys ^= hash; + hash = 0; + goto hash2_common; + case HASH_MAP_VAL: + hash_xor_values ^= hash; + hash = 0; + goto hash2_common; + default: + break; + } } } } + +#undef HASH_MAP_TAIL +#undef HASH_MAP_KEY +#undef HASH_MAP_VAL + #undef UINT32_HASH_2 #undef UINT32_HASH #undef SINT32_HASH @@ -1461,7 +1584,7 @@ tail_recur: hash = hash*FUNNY_NUMBER2 + funp->fe->old_uniq; if (num_free > 0) { if (num_free > 1) { - WSTACK_PUSH3(stack, (UWord) &funp->env[1], (num_free-1), MAKE_HASH_FUN_OP); + WSTACK_PUSH3(stack, (UWord) &funp->env[1], (num_free-1), MAKE_HASH_TERM_ARRAY_OP); } term = funp->env[0]; goto tail_recur; @@ -1574,6 +1697,24 @@ tail_recur: } break; + case MAP_DEF: + { + map_t *mp = (map_t *)map_val(term); + int size = map_get_size(mp); + Eterm *ks = map_get_keys(mp); + Eterm *vs = map_get_values(mp); + + /* Use a prime with size to remedy some of + * the {} and <<>> hash problems */ + hash = hash*FUNNY_NUMBER13 + FUNNY_NUMBER14 + size; + if (size == 0) + break; + + /* push values first */ + WSTACK_PUSH3(stack, (UWord)vs, (UWord) size, MAKE_HASH_TERM_ARRAY_OP); + WSTACK_PUSH3(stack, (UWord)ks, (UWord) size, MAKE_HASH_TERM_ARRAY_OP); + break; + } case TUPLE_DEF: { Eterm* ptr = tuple_val(term); @@ -1583,7 +1724,7 @@ tail_recur: op = MAKE_HASH_TUPLE_OP; }/*fall through*/ case MAKE_HASH_TUPLE_OP: - case MAKE_HASH_FUN_OP: + case MAKE_HASH_TERM_ARRAY_OP: { Uint i = (Uint) WSTACK_POP(stack); Eterm* ptr = (Eterm*) WSTACK_POP(stack); @@ -1611,7 +1752,7 @@ tail_recur: return hash; #undef MAKE_HASH_TUPLE_OP -#undef MAKE_HASH_FUN_OP +#undef MAKE_HASH_TERM_ARRAY_OP #undef MAKE_HASH_CDR_PRE_OP #undef MAKE_HASH_CDR_POST_OP } @@ -1640,12 +1781,20 @@ static int do_send_to_logger(Eterm tag, Eterm gleader, char *buf, int len) } #ifndef ERTS_SMP - if ( #ifdef USE_THREADS - !erts_get_scheduler_data() || /* Must be scheduler thread */ + p = NULL; + if (erts_get_scheduler_data()) /* Must be scheduler thread */ #endif - (p = erts_whereis_process(NULL, 0, am_error_logger, 0, 0)) == NULL - || p->status == P_RUNNING) { + { + p = erts_whereis_process(NULL, 0, am_error_logger, 0, 0); + if (p) { + erts_aint32_t state = erts_smp_atomic32_read_acqb(&p->state); + if (state & (ERTS_PSFLG_RUNNING|ERTS_PSFLG_RUNNING_SYS)) + p = NULL; + } + } + + if (!p) { /* buf *always* points to a null terminated string */ erts_fprintf(stderr, "(no error logger present) %T: \"%s\"\n", tag, buf); @@ -1970,6 +2119,22 @@ tailrecur_ne: ++bb; goto term_array; } + case MAP_SUBTAG: + { + aa = map_val_rel(a, a_base); + if (!is_boxed(b) || *boxed_val_rel(b,b_base) != *aa) + goto not_equal; + bb = map_val_rel(b,b_base); + sz = map_get_size((map_t*)aa); + + if (sz != map_get_size((map_t*)bb)) goto not_equal; + if (sz == 0) goto pop_next; + + aa += 2; + bb += 2; + sz += 1; /* increment for tuple-keys */ + goto term_array; + } case REFC_BINARY_SUBTAG: case HEAP_BINARY_SUBTAG: case SUB_BINARY_SUBTAG: @@ -2244,7 +2409,7 @@ static int cmpbytes(byte *s1, int l1, byte *s2, int l2) * * According to the Erlang Standard, types are orderered as follows: * numbers < (characters) < atoms < refs < funs < ports < pids < - * tuples < [] < conses < binaries. + * tuples < maps < [] < conses < binaries. * * Note that characters are currently not implemented. * @@ -2264,10 +2429,24 @@ static int cmp_atoms(Eterm a, Eterm b) bb->name+3, bb->len-3); } +#if !HALFWORD_HEAP +/* cmp(Eterm a, Eterm b) + * For compatibility with HiPE - arith-based compare. + */ +Sint cmp(Eterm a, Eterm b) +{ + return erts_cmp(a, b, 0); +} +#endif + +/* erts_cmp(Eterm a, Eterm b, int exact) + * exact = 1 -> term-based compare + * exact = 0 -> arith-based compare + */ #if HALFWORD_HEAP -Sint cmp_rel(Eterm a, Eterm* a_base, Eterm b, Eterm* b_base) +Sint erts_cmp_rel_opt(Eterm a, Eterm* a_base, Eterm b, Eterm* b_base, int exact) #else -Sint cmp(Eterm a, Eterm b) +Sint erts_cmp(Eterm a, Eterm b, int exact) #endif { DECLARE_WSTACK(stack); @@ -2427,7 +2606,25 @@ tailrecur_ne: ++aa; ++bb; goto term_array; + case (_TAG_HEADER_MAP >> _TAG_PRIMARY_SIZE) : + if (!is_map_rel(b,b_base)) { + a_tag = MAP_DEF; + goto mixed_types; + } + aa = (Eterm *)map_val_rel(a,a_base); + bb = (Eterm *)map_val_rel(b,b_base); + i = map_get_size((map_t*)aa); + if (i != map_get_size((map_t*)bb)) { + RETURN_NEQ((int)(i - map_get_size((map_t*)bb))); + } + if (i == 0) { + goto pop_next; + } + aa += 2; + bb += 2; + i += 1; /* increment for tuple-keys */ + goto term_array; case (_TAG_HEADER_FLOAT >> _TAG_PRIMARY_SIZE): if (!is_float_rel(b,b_base)) { a_tag = FLOAT_DEF; @@ -2651,11 +2848,6 @@ tailrecur_ne: { FloatDef f1, f2; Eterm big; -#if HEAP_ON_C_STACK - Eterm big_buf[CMP_TMP_HEAP_SIZE]; /* If HEAP_ON_C_STACK */ -#else - Eterm *big_buf = erts_get_scheduler_data()->cmp_tmp_heap; -#endif #if HALFWORD_HEAP Wterm aw = is_immed(a) ? a : rterm2wterm(a,a_base); Wterm bw = is_immed(b) ? b : rterm2wterm(b,b_base); @@ -2666,6 +2858,8 @@ tailrecur_ne: #define MAX_LOSSLESS_FLOAT ((double)((1LL << 53) - 2)) #define MIN_LOSSLESS_FLOAT ((double)(((1LL << 53) - 2)*-1)) #define BIG_ARITY_FLOAT_MAX (1024 / D_EXP) /* arity of max float as a bignum */ + Eterm big_buf[BIG_NEED_SIZE(BIG_ARITY_FLOAT_MAX)]; + b_tag = tag_val_def(bw); switch(_NUMBER_CODE(a_tag, b_tag)) { @@ -2676,86 +2870,95 @@ tailrecur_ne: j = big_sign(aw) ? -1 : 1; break; case SMALL_FLOAT: + if (exact) goto exact_fall_through; GET_DOUBLE(bw, f2); if (f2.fd < MAX_LOSSLESS_FLOAT && f2.fd > MIN_LOSSLESS_FLOAT) { - // Float is within the no loss limit + /* Float is within the no loss limit */ f1.fd = signed_val(aw); j = float_comp(f1.fd, f2.fd); + } #if ERTS_SIZEOF_ETERM == 8 - } else if (f2.fd > (double) (MAX_SMALL + 1)) { - // Float is a positive bignum, i.e. bigger + else if (f2.fd > (double) (MAX_SMALL + 1)) { + /* Float is a positive bignum, i.e. bigger */ j = -1; } else if (f2.fd < (double) (MIN_SMALL - 1)) { - // Float is a negative bignum, i.e. smaller + /* Float is a negative bignum, i.e. smaller */ j = 1; - } else { // Float is a Sint but less precise + } else { + /* Float is a Sint but less precise */ j = signed_val(aw) - (Sint) f2.fd; } #else - } else { - // If float is positive it is bigger than small + else { + /* If float is positive it is bigger than small */ j = (f2.fd > 0.0) ? -1 : 1; } -#endif // ERTS_SIZEOF_ETERM == 8 +#endif /* ERTS_SIZEOF_ETERM == 8 */ break; case FLOAT_BIG: + if (exact) goto exact_fall_through; { Wterm tmp = aw; aw = bw; bw = tmp; }/* fall through */ case BIG_FLOAT: + if (exact) goto exact_fall_through; GET_DOUBLE(bw, f2); if ((f2.fd < (double) (MAX_SMALL + 1)) && (f2.fd > (double) (MIN_SMALL - 1))) { - // Float is a Sint + /* Float is a Sint */ j = big_sign(aw) ? -1 : 1; } else if (big_arity(aw) > BIG_ARITY_FLOAT_MAX || pow(2.0,(big_arity(aw)-1)*D_EXP) > fabs(f2.fd)) { - // If bignum size shows that it is bigger than the abs float + /* If bignum size shows that it is bigger than the abs float */ j = big_sign(aw) ? -1 : 1; } else if (big_arity(aw) < BIG_ARITY_FLOAT_MAX && (pow(2.0,(big_arity(aw))*D_EXP)-1.0) < fabs(f2.fd)) { - // If bignum size shows that it is smaller than the abs float + /* If bignum size shows that it is smaller than the abs float */ j = f2.fd < 0 ? 1 : -1; } else if (f2.fd < MAX_LOSSLESS_FLOAT && f2.fd > MIN_LOSSLESS_FLOAT) { - // Float is within the no loss limit + /* Float is within the no loss limit */ if (big_to_double(aw, &f1.fd) < 0) { j = big_sign(aw) ? -1 : 1; } else { j = float_comp(f1.fd, f2.fd); } } else { - big = double_to_big(f2.fd, big_buf); - j = big_comp(aw, big); + big = double_to_big(f2.fd, big_buf, sizeof(big_buf)/sizeof(Eterm)); + j = big_comp(aw, rterm2wterm(big,big_buf)); } if (_NUMBER_CODE(a_tag, b_tag) == FLOAT_BIG) { j = -j; } break; case FLOAT_SMALL: + if (exact) goto exact_fall_through; GET_DOUBLE(aw, f1); if (f1.fd < MAX_LOSSLESS_FLOAT && f1.fd > MIN_LOSSLESS_FLOAT) { - // Float is within the no loss limit + /* Float is within the no loss limit */ f2.fd = signed_val(bw); j = float_comp(f1.fd, f2.fd); + } #if ERTS_SIZEOF_ETERM == 8 - } else if (f1.fd > (double) (MAX_SMALL + 1)) { - // Float is a positive bignum, i.e. bigger + else if (f1.fd > (double) (MAX_SMALL + 1)) { + /* Float is a positive bignum, i.e. bigger */ j = 1; } else if (f1.fd < (double) (MIN_SMALL - 1)) { - // Float is a negative bignum, i.e. smaller + /* Float is a negative bignum, i.e. smaller */ j = -1; - } else { // Float is a Sint but less precise it + } else { + /* Float is a Sint but less precise it */ j = (Sint) f1.fd - signed_val(bw); } #else - } else { - // If float is positive it is bigger than small + else { + /* If float is positive it is bigger than small */ j = (f1.fd > 0.0) ? 1 : -1; } -#endif // ERTS_SIZEOF_ETERM == 8 +#endif /* ERTS_SIZEOF_ETERM == 8 */ break; +exact_fall_through: default: j = b_tag - a_tag; } @@ -2809,7 +3012,7 @@ pop_next: return 0; not_equal: - DESTROY_ESTACK(stack); + DESTROY_WSTACK(stack); return j; #undef CMP_NODES @@ -2946,7 +3149,7 @@ char* Sint_to_buf(Sint n, struct Sint_buf *buf) */ Eterm -buf_to_intlist(Eterm** hpp, char *buf, size_t len, Eterm tail) +buf_to_intlist(Eterm** hpp, const char *buf, size_t len, Eterm tail) { Eterm* hp = *hpp; size_t i = len; @@ -2982,119 +3185,351 @@ buf_to_intlist(Eterm** hpp, char *buf, size_t len, Eterm tail) ** ; ** ** Return remaining bytes in buffer on success -** -1 on overflow -** -2 on type error (including that result would not be a whole number of bytes) +** ERTS_IOLIST_TO_BUF_OVERFLOW on overflow +** ERTS_IOLIST_TO_BUF_TYPE_ERROR on type error (including that result would not be a whole number of bytes) +** +** Note! +** Do not detect indata errors in this fiunction that are not detected by erts_iolist_size! +** +** A caller should be able to rely on a successful return from erts_iolist_to_buf +** if erts_iolist_size is previously successfully called and erts_iolist_to_buf +** is called with a buffer at least as large as the value given by erts_iolist_size. +** */ -int io_list_to_buf(Eterm obj, char* buf, int len) +typedef enum { + ERTS_IL2B_BCOPY_OK, + ERTS_IL2B_BCOPY_YIELD, + ERTS_IL2B_BCOPY_OVERFLOW, + ERTS_IL2B_BCOPY_TYPE_ERROR +} ErtsIL2BBCopyRes; + +static ErtsIL2BBCopyRes +iolist_to_buf_bcopy(ErtsIOList2BufState *state, Eterm obj, int *yield_countp); + +static ERTS_INLINE ErlDrvSizeT +iolist_to_buf(const int yield_support, + ErtsIOList2BufState *state, + Eterm obj, + char* buf, + ErlDrvSizeT alloced_len) { - Eterm* objp; +#undef IOLIST_TO_BUF_BCOPY +#define IOLIST_TO_BUF_BCOPY(CONSP) \ +do { \ + size_t size = binary_size(obj); \ + if (size > 0) { \ + Uint bitsize; \ + byte* bptr; \ + Uint bitoffs; \ + Uint num_bits; \ + if (yield_support) { \ + size_t max_size = ERTS_IOLIST_TO_BUF_BYTES_PER_YIELD_COUNT; \ + if (yield_count > 0) \ + max_size *= yield_count+1; \ + if (size > max_size) { \ + state->objp = CONSP; \ + goto L_bcopy_yield; \ + } \ + if (size >= ERTS_IOLIST_TO_BUF_BYTES_PER_YIELD_COUNT) { \ + int cost = (int) size; \ + cost /= ERTS_IOLIST_TO_BUF_BYTES_PER_YIELD_COUNT; \ + yield_count -= cost; \ + } \ + } \ + if (len < size) \ + goto L_overflow; \ + ERTS_GET_BINARY_BYTES(obj, bptr, bitoffs, bitsize); \ + if (bitsize != 0) \ + goto L_type_error; \ + num_bits = 8*size; \ + copy_binary_to_buffer(buf, 0, bptr, bitoffs, num_bits); \ + buf += size; \ + len -= size; \ + } \ +} while (0) + + ErlDrvSizeT res, len; + Eterm* objp = NULL; + int init_yield_count; + int yield_count; DECLARE_ESTACK(s); - goto L_again; - - while (!ESTACK_ISEMPTY(s)) { - obj = ESTACK_POP(s); - L_again: - if (is_list(obj)) { - L_iter_list: - objp = list_val(obj); - obj = CAR(objp); - if (is_byte(obj)) { - if (len == 0) { - goto L_overflow; - } - *buf++ = unsigned_val(obj); - len--; - } else if (is_binary(obj)) { - byte* bptr; - size_t size = binary_size(obj); - Uint bitsize; - Uint bitoffs; - Uint num_bits; - - if (len < size) { + + len = (ErlDrvSizeT) alloced_len; + + if (!yield_support) { + yield_count = init_yield_count = 0; /* Shut up faulty warning... >:-( */ + goto L_again; + } + else { + + if (state->iolist.reds_left <= 0) + return ERTS_IOLIST_TO_BUF_YIELD; + + ESTACK_CHANGE_ALLOCATOR(s, ERTS_ALC_T_SAVED_ESTACK); + init_yield_count = (ERTS_IOLIST_TO_BUF_YIELD_COUNT_PER_RED + * state->iolist.reds_left); + yield_count = init_yield_count; + + if (!state->iolist.estack.start) + goto L_again; + else { + int chk_stack; + /* Restart; restore state... */ + ESTACK_RESTORE(s, &state->iolist.estack); + + if (!state->bcopy.bptr) + chk_stack = 0; + else { + chk_stack = 1; + switch (iolist_to_buf_bcopy(state, THE_NON_VALUE, &yield_count)) { + case ERTS_IL2B_BCOPY_OK: + break; + case ERTS_IL2B_BCOPY_YIELD: + BUMP_ALL_REDS(state->iolist.c_p); + state->iolist.reds_left = 0; + ESTACK_SAVE(s, &state->iolist.estack); + return ERTS_IOLIST_TO_BUF_YIELD; + case ERTS_IL2B_BCOPY_OVERFLOW: goto L_overflow; - } - ERTS_GET_BINARY_BYTES(obj, bptr, bitoffs, bitsize); - if (bitsize != 0) { + case ERTS_IL2B_BCOPY_TYPE_ERROR: goto L_type_error; } - num_bits = 8*size; - copy_binary_to_buffer(buf, 0, bptr, bitoffs, num_bits); - buf += size; - len -= size; - } else if (is_list(obj)) { - ESTACK_PUSH(s, CDR(objp)); - goto L_iter_list; /* on head */ - } else if (is_not_nil(obj)) { - goto L_type_error; } - obj = CDR(objp); - if (is_list(obj)) { - goto L_iter_list; /* on tail */ - } else if (is_binary(obj)) { - byte* bptr; - size_t size = binary_size(obj); - Uint bitsize; - Uint bitoffs; - Uint num_bits; - if (len < size) { - goto L_overflow; + obj = state->iolist.obj; + buf = state->buf; + len = state->len; + objp = state->objp; + state->objp = NULL; + if (objp) + goto L_tail; + if (!chk_stack) + goto L_again; + /* check stack */ + } + } + + while (!ESTACK_ISEMPTY(s)) { + obj = ESTACK_POP(s); + L_again: + if (is_list(obj)) { + while (1) { /* Tail loop */ + while (1) { /* Head loop */ + if (yield_support && --yield_count <= 0) + goto L_yield; + objp = list_val(obj); + obj = CAR(objp); + if (is_byte(obj)) { + if (len == 0) { + goto L_overflow; + } + *buf++ = unsigned_val(obj); + len--; + } else if (is_binary(obj)) { + IOLIST_TO_BUF_BCOPY(objp); + } else if (is_list(obj)) { + ESTACK_PUSH(s, CDR(objp)); + continue; /* Head loop */ + } else if (is_not_nil(obj)) { + goto L_type_error; + } + break; } - ERTS_GET_BINARY_BYTES(obj, bptr, bitoffs, bitsize); - if (bitsize != 0) { + + L_tail: + + obj = CDR(objp); + + if (is_list(obj)) { + continue; /* Tail loop */ + } else if (is_binary(obj)) { + IOLIST_TO_BUF_BCOPY(NULL); + } else if (is_not_nil(obj)) { goto L_type_error; } - num_bits = 8*size; - copy_binary_to_buffer(buf, 0, bptr, bitoffs, num_bits); - buf += size; - len -= size; - } else if (is_not_nil(obj)) { - goto L_type_error; + break; } } else if (is_binary(obj)) { - byte* bptr; - size_t size = binary_size(obj); - Uint bitsize; - Uint bitoffs; - Uint num_bits; - if (len < size) { - goto L_overflow; - } - ERTS_GET_BINARY_BYTES(obj, bptr, bitoffs, bitsize); - if (bitsize != 0) { - goto L_type_error; - } - num_bits = 8*size; - copy_binary_to_buffer(buf, 0, bptr, bitoffs, num_bits); - buf += size; - len -= size; + IOLIST_TO_BUF_BCOPY(NULL); } else if (is_not_nil(obj)) { goto L_type_error; - } + } else if (yield_support && --yield_count <= 0) + goto L_yield; } + res = len; + + L_return: + DESTROY_ESTACK(s); - return len; + + if (yield_support) { + int reds; + CLEAR_SAVED_ESTACK(&state->iolist.estack); + reds = ((init_yield_count - yield_count - 1) + / ERTS_IOLIST_TO_BUF_YIELD_COUNT_PER_RED) + 1; + BUMP_REDS(state->iolist.c_p, reds); + state->iolist.reds_left -= reds; + if (state->iolist.reds_left < 0) + state->iolist.reds_left = 0; + } + + + return res; L_type_error: - DESTROY_ESTACK(s); - return -2; + res = ERTS_IOLIST_TO_BUF_TYPE_ERROR; + goto L_return; L_overflow: - DESTROY_ESTACK(s); - return -1; + res = ERTS_IOLIST_TO_BUF_OVERFLOW; + goto L_return; + + L_bcopy_yield: + + state->buf = buf; + state->len = len; + + switch (iolist_to_buf_bcopy(state, obj, &yield_count)) { + case ERTS_IL2B_BCOPY_OK: + ERTS_INTERNAL_ERROR("Missing yield"); + case ERTS_IL2B_BCOPY_YIELD: + BUMP_ALL_REDS(state->iolist.c_p); + state->iolist.reds_left = 0; + ESTACK_SAVE(s, &state->iolist.estack); + return ERTS_IOLIST_TO_BUF_YIELD; + case ERTS_IL2B_BCOPY_OVERFLOW: + goto L_overflow; + case ERTS_IL2B_BCOPY_TYPE_ERROR: + goto L_type_error; + } + + L_yield: + + BUMP_ALL_REDS(state->iolist.c_p); + state->iolist.reds_left = 0; + state->iolist.obj = obj; + state->buf = buf; + state->len = len; + ESTACK_SAVE(s, &state->iolist.estack); + return ERTS_IOLIST_TO_BUF_YIELD; + +#undef IOLIST_TO_BUF_BCOPY +} + +static ErtsIL2BBCopyRes +iolist_to_buf_bcopy(ErtsIOList2BufState *state, Eterm obj, int *yield_countp) +{ + ErtsIL2BBCopyRes res; + char *buf = state->buf; + ErlDrvSizeT len = state->len; + byte* bptr; + size_t size; + size_t max_size; + Uint bitoffs; + Uint num_bits; + int yield_count = *yield_countp; + + if (state->bcopy.bptr) { + bptr = state->bcopy.bptr; + size = state->bcopy.size; + bitoffs = state->bcopy.bitoffs; + state->bcopy.bptr = NULL; + } + else { + Uint bitsize; + + ASSERT(is_binary(obj)); + + size = binary_size(obj); + if (size <= 0) + return ERTS_IL2B_BCOPY_OK; + + if (len < size) + return ERTS_IL2B_BCOPY_OVERFLOW; + + ERTS_GET_BINARY_BYTES(obj, bptr, bitoffs, bitsize); + if (bitsize != 0) + return ERTS_IL2B_BCOPY_TYPE_ERROR; + } + + ASSERT(size > 0); + max_size = (size_t) ERTS_IOLIST_TO_BUF_BYTES_PER_YIELD_COUNT; + if (yield_count > 0) + max_size *= (size_t) (yield_count+1); + + if (size <= max_size) { + if (size >= ERTS_IOLIST_TO_BUF_BYTES_PER_YIELD_COUNT) { + int cost = (int) size; + cost /= ERTS_IOLIST_TO_BUF_BYTES_PER_YIELD_COUNT; + yield_count -= cost; + } + res = ERTS_IL2B_BCOPY_OK; + } + else { + ASSERT(0 < max_size && max_size < size); + yield_count = 0; + state->bcopy.bptr = bptr + max_size; + state->bcopy.bitoffs = bitoffs; + state->bcopy.size = size - max_size; + size = max_size; + res = ERTS_IL2B_BCOPY_YIELD; + } + + num_bits = 8*size; + copy_binary_to_buffer(buf, 0, bptr, bitoffs, num_bits); + state->buf += size; + state->len -= size; + *yield_countp = yield_count; + + return res; +} + +ErlDrvSizeT erts_iolist_to_buf_yielding(ErtsIOList2BufState *state) +{ + return iolist_to_buf(1, state, state->iolist.obj, state->buf, state->len); +} + +ErlDrvSizeT erts_iolist_to_buf(Eterm obj, char* buf, ErlDrvSizeT alloced_len) +{ + return iolist_to_buf(0, NULL, obj, buf, alloced_len); } /* * Return 0 if successful, and non-zero if unsuccessful. + * + * It is vital that if erts_iolist_to_buf would return an error for + * any type of term data, this function should do so as well. + * Any input term error detected in erts_iolist_to_buf should also + * be detected in this function! */ -int erts_iolist_size(Eterm obj, Uint* sizep) + +static ERTS_INLINE int +iolist_size(const int yield_support, ErtsIOListState *state, Eterm obj, ErlDrvSizeT* sizep) { + int res, init_yield_count, yield_count; Eterm* objp; - Uint size = 0; + Uint size = (Uint) *sizep; /* Intentionally Uint due to halfword heap */ DECLARE_ESTACK(s); + + if (!yield_support) + yield_count = init_yield_count = 0; /* Shut up faulty warning... >:-( */ + else { + if (state->reds_left <= 0) + return ERTS_IOLIST_YIELD; + ESTACK_CHANGE_ALLOCATOR(s, ERTS_ALC_T_SAVED_ESTACK); + init_yield_count = ERTS_IOLIST_SIZE_YIELDS_COUNT_PER_RED; + init_yield_count *= state->reds_left; + yield_count = init_yield_count; + if (state->estack.start) { + /* Restart; restore state... */ + ESTACK_RESTORE(s, &state->estack); + size = (Uint) state->size; + obj = state->obj; + } + } + goto L_again; #define SAFE_ADD(Var, Val) \ @@ -3110,51 +3545,101 @@ int erts_iolist_size(Eterm obj, Uint* sizep) obj = ESTACK_POP(s); L_again: if (is_list(obj)) { - L_iter_list: - objp = list_val(obj); - /* Head */ - obj = CAR(objp); - if (is_byte(obj)) { - size++; - if (size == 0) { - goto L_overflow_error; + while (1) { /* Tail loop */ + while (1) { /* Head loop */ + if (yield_support && --yield_count <= 0) + goto L_yield; + objp = list_val(obj); + /* Head */ + obj = CAR(objp); + if (is_byte(obj)) { + size++; + if (size == 0) { + goto L_overflow_error; + } + } else if (is_binary(obj) && binary_bitsize(obj) == 0) { + SAFE_ADD(size, binary_size(obj)); + } else if (is_list(obj)) { + ESTACK_PUSH(s, CDR(objp)); + continue; /* Head loop */ + } else if (is_not_nil(obj)) { + goto L_type_error; + } + break; } - } else if (is_binary(obj) && binary_bitsize(obj) == 0) { - SAFE_ADD(size, binary_size(obj)); - } else if (is_list(obj)) { - ESTACK_PUSH(s, CDR(objp)); - goto L_iter_list; /* on head */ - } else if (is_not_nil(obj)) { - goto L_type_error; + /* Tail */ + obj = CDR(objp); + if (is_list(obj)) + continue; /* Tail loop */ + else if (is_binary(obj) && binary_bitsize(obj) == 0) { + SAFE_ADD(size, binary_size(obj)); + } else if (is_not_nil(obj)) { + goto L_type_error; + } + break; } - /* Tail */ - obj = CDR(objp); - if (is_list(obj)) - goto L_iter_list; /* on tail */ - else if (is_binary(obj) && binary_bitsize(obj) == 0) { + } else { + if (yield_support && --yield_count <= 0) + goto L_yield; + if (is_binary(obj) && binary_bitsize(obj) == 0) { /* Tail was binary */ SAFE_ADD(size, binary_size(obj)); } else if (is_not_nil(obj)) { goto L_type_error; } - } else if (is_binary(obj) && binary_bitsize(obj) == 0) { /* Tail was binary */ - SAFE_ADD(size, binary_size(obj)); - } else if (is_not_nil(obj)) { - goto L_type_error; } } #undef SAFE_ADD + *sizep = (ErlDrvSizeT) size; + + res = ERTS_IOLIST_OK; + + L_return: + DESTROY_ESTACK(s); - *sizep = size; - return ERTS_IOLIST_OK; + + if (yield_support) { + int yc, reds; + CLEAR_SAVED_ESTACK(&state->estack); + yc = init_yield_count - yield_count; + reds = ((yc - 1) / ERTS_IOLIST_SIZE_YIELDS_COUNT_PER_RED) + 1; + BUMP_REDS(state->c_p, reds); + state->reds_left -= reds; + state->size = (ErlDrvSizeT) size; + state->have_size = 1; + } + + return res; L_overflow_error: - DESTROY_ESTACK(s); - return ERTS_IOLIST_OVERFLOW; + res = ERTS_IOLIST_OVERFLOW; + size = 0; + goto L_return; L_type_error: - DESTROY_ESTACK(s); - return ERTS_IOLIST_TYPE; + res = ERTS_IOLIST_TYPE; + size = 0; + goto L_return; + + L_yield: + BUMP_ALL_REDS(state->c_p); + state->reds_left = 0; + state->size = size; + state->obj = obj; + ESTACK_SAVE(s, &state->estack); + return ERTS_IOLIST_YIELD; +} + +int erts_iolist_size_yielding(ErtsIOListState *state) +{ + ErlDrvSizeT size = state->size; + return iolist_size(1, state, state->obj, &size); +} + +int erts_iolist_size(Eterm obj, ErlDrvSizeT* sizep) +{ + *sizep = 0; + return iolist_size(0, NULL, obj, sizep); } /* return 0 if item is not a non-empty flat list of bytes */ @@ -3240,7 +3725,7 @@ ptimer_timeout(ErtsSmpPTimer *ptimer) ERTS_PROC_LOCK_MAIN|ERTS_PROC_LOCK_STATUS, ERTS_P2P_FLG_ALLOW_OTHER_X); if (p) { - if (!p->is_exiting + if (!ERTS_PROC_IS_EXITING(p) && !(ptimer->timer.flags & ERTS_PTMR_FLG_CANCELLED)) { ASSERT(*ptimer->timer.timer_ref == ptimer); *ptimer->timer.timer_ref = NULL; @@ -3428,6 +3913,294 @@ erts_free_read_env(void *value) erts_free(ERTS_ALC_T_TMP, value); } + +typedef struct { + size_t sz; + char *ptr; +} ErtsEmuArg; + +typedef struct { + int argc; + ErtsEmuArg *arg; + size_t no_bytes; +} ErtsEmuArgs; + +ErtsEmuArgs saved_emu_args = {0}; + +void +erts_save_emu_args(int argc, char **argv) +{ +#ifdef DEBUG + char *end_ptr; +#endif + char *ptr; + int i; + size_t arg_sz[100]; + size_t size; + + ASSERT(!saved_emu_args.argc); + + size = sizeof(ErtsEmuArg)*argc; + for (i = 0; i < argc; i++) { + size_t sz = sys_strlen(argv[i]); + if (i < sizeof(arg_sz)/sizeof(arg_sz[0])) + arg_sz[i] = sz; + size += sz+1; + } + ptr = (char *) malloc(size); + if (!ptr) { + ERTS_INTERNAL_ERROR("malloc failed to allocate memory!"); + } +#ifdef DEBUG + end_ptr = ptr + size; +#endif + saved_emu_args.arg = (ErtsEmuArg *) ptr; + ptr += sizeof(ErtsEmuArg)*argc; + saved_emu_args.argc = argc; + saved_emu_args.no_bytes = 0; + for (i = 0; i < argc; i++) { + size_t sz; + if (i < sizeof(arg_sz)/sizeof(arg_sz[0])) + sz = arg_sz[i]; + else + sz = sys_strlen(argv[i]); + saved_emu_args.arg[i].ptr = ptr; + saved_emu_args.arg[i].sz = sz; + saved_emu_args.no_bytes += sz; + ptr += sz+1; + sys_strcpy(saved_emu_args.arg[i].ptr, argv[i]); + } + ASSERT(ptr == end_ptr); +} + +Eterm +erts_get_emu_args(Process *c_p) +{ +#ifdef DEBUG + Eterm *end_hp; +#endif + int i; + Uint hsz; + Eterm *hp, res; + + hsz = saved_emu_args.no_bytes*2; + hsz += saved_emu_args.argc*2; + + hp = HAlloc(c_p, hsz); +#ifdef DEBUG + end_hp = hp + hsz; +#endif + res = NIL; + + for (i = saved_emu_args.argc-1; i >= 0; i--) { + Eterm arg = buf_to_intlist(&hp, + saved_emu_args.arg[i].ptr, + saved_emu_args.arg[i].sz, + NIL); + res = CONS(hp, arg, res); + hp += 2; + } + + ASSERT(hp == end_hp); + + return res; +} + + +Eterm +erts_get_ethread_info(Process *c_p) +{ + Uint sz, *szp; + Eterm res, *hp, **hpp, *end_hp = NULL; + + sz = 0; + szp = &sz; + hpp = NULL; + + while (1) { + Eterm tup, list, name; +#if defined(ETHR_NATIVE_ATOMIC32_IMPL) \ + || defined(ETHR_NATIVE_ATOMIC64_IMPL) \ + || defined(ETHR_NATIVE_DW_ATOMIC_IMPL) + char buf[1024]; + int i; + char **str; +#endif + + res = NIL; + +#ifdef ETHR_X86_MEMBAR_H__ + + tup = erts_bld_tuple(hpp, szp, 2, + erts_bld_string(hpp, szp, "sse2"), +#ifdef ETHR_X86_RUNTIME_CONF_HAVE_SSE2__ + erts_bld_string(hpp, szp, + (ETHR_X86_RUNTIME_CONF_HAVE_SSE2__ + ? "yes" : "no")) +#else + erts_bld_string(hpp, szp, "yes") +#endif + ); + res = erts_bld_cons(hpp, szp, tup, res); + + tup = erts_bld_tuple(hpp, szp, 2, + erts_bld_string(hpp, szp, + "x86" +#ifdef ARCH_64 + "_64" +#endif + " OOO"), + erts_bld_string(hpp, szp, +#ifdef ETHR_X86_OUT_OF_ORDER + "yes" +#else + "no" +#endif + )); + + res = erts_bld_cons(hpp, szp, tup, res); +#endif + +#ifdef ETHR_SPARC_V9_MEMBAR_H__ + + tup = erts_bld_tuple(hpp, szp, 2, + erts_bld_string(hpp, szp, "Sparc V9"), + erts_bld_string(hpp, szp, +#if defined(ETHR_SPARC_TSO) + "TSO" +#elif defined(ETHR_SPARC_PSO) + "PSO" +#elif defined(ETHR_SPARC_RMO) + "RMO" +#else + "undefined" +#endif + )); + + res = erts_bld_cons(hpp, szp, tup, res); + +#endif + +#ifdef ETHR_PPC_MEMBAR_H__ + + tup = erts_bld_tuple(hpp, szp, 2, + erts_bld_string(hpp, szp, "lwsync"), + erts_bld_string(hpp, szp, +#if defined(ETHR_PPC_HAVE_LWSYNC) + "yes" +#elif defined(ETHR_PPC_HAVE_NO_LWSYNC) + "no" +#elif defined(ETHR_PPC_RUNTIME_CONF_HAVE_LWSYNC__) + ETHR_PPC_RUNTIME_CONF_HAVE_LWSYNC__ ? "yes" : "no" +#else + "undefined" +#endif + )); + + res = erts_bld_cons(hpp, szp, tup, res); + +#endif + + tup = erts_bld_tuple(hpp, szp, 2, + erts_bld_string(hpp, szp, "Native rw-spinlocks"), +#ifdef ETHR_NATIVE_RWSPINLOCK_IMPL + erts_bld_string(hpp, szp, ETHR_NATIVE_RWSPINLOCK_IMPL) +#else + erts_bld_string(hpp, szp, "no") +#endif + ); + res = erts_bld_cons(hpp, szp, tup, res); + + tup = erts_bld_tuple(hpp, szp, 2, + erts_bld_string(hpp, szp, "Native spinlocks"), +#ifdef ETHR_NATIVE_SPINLOCK_IMPL + erts_bld_string(hpp, szp, ETHR_NATIVE_SPINLOCK_IMPL) +#else + erts_bld_string(hpp, szp, "no") +#endif + ); + res = erts_bld_cons(hpp, szp, tup, res); + + + list = NIL; +#ifdef ETHR_NATIVE_DW_ATOMIC_IMPL + if (ethr_have_native_dw_atomic()) { + name = erts_bld_string(hpp, szp, ETHR_NATIVE_DW_ATOMIC_IMPL); + str = ethr_native_dw_atomic_ops(); + for (i = 0; str[i]; i++) { + erts_snprintf(buf, sizeof(buf), "ethr_native_dw_atomic_%s()", str[i]); + list = erts_bld_cons(hpp, szp, + erts_bld_string(hpp, szp, buf), + list); + } + str = ethr_native_su_dw_atomic_ops(); + for (i = 0; str[i]; i++) { + erts_snprintf(buf, sizeof(buf), "ethr_native_su_dw_atomic_%s()", str[i]); + list = erts_bld_cons(hpp, szp, + erts_bld_string(hpp, szp, buf), + list); + } + } + else +#endif + name = erts_bld_string(hpp, szp, "no"); + + tup = erts_bld_tuple(hpp, szp, 3, + erts_bld_string(hpp, szp, "Double word native atomics"), + name, + list); + res = erts_bld_cons(hpp, szp, tup, res); + + list = NIL; +#ifdef ETHR_NATIVE_ATOMIC64_IMPL + name = erts_bld_string(hpp, szp, ETHR_NATIVE_ATOMIC64_IMPL); + str = ethr_native_atomic64_ops(); + for (i = 0; str[i]; i++) { + erts_snprintf(buf, sizeof(buf), "ethr_native_atomic64_%s()", str[i]); + list = erts_bld_cons(hpp, szp, + erts_bld_string(hpp, szp, buf), + list); + } +#else + name = erts_bld_string(hpp, szp, "no"); +#endif + tup = erts_bld_tuple(hpp, szp, 3, + erts_bld_string(hpp, szp, "64-bit native atomics"), + name, + list); + res = erts_bld_cons(hpp, szp, tup, res); + + list = NIL; +#ifdef ETHR_NATIVE_ATOMIC32_IMPL + name = erts_bld_string(hpp, szp, ETHR_NATIVE_ATOMIC32_IMPL); + str = ethr_native_atomic32_ops(); + for (i = 0; str[i]; i++) { + erts_snprintf(buf, sizeof(buf), "ethr_native_atomic32_%s()", str[i]); + list = erts_bld_cons(hpp, szp, + erts_bld_string(hpp, szp, buf), + list); + } +#else + name = erts_bld_string(hpp, szp, "no"); +#endif + tup = erts_bld_tuple(hpp, szp, 3, + erts_bld_string(hpp, szp, "32-bit native atomics"), + name, + list); + res = erts_bld_cons(hpp, szp, tup, res); + + if (hpp) { + HRelease(c_p, end_hp, *hpp) + return res; + } + + hp = HAlloc(c_p, sz); + end_hp = hp + sz; + hpp = &hp; + szp = NULL; + } +} + /* * To be used to silence unused result warnings, but do not abuse it. */ @@ -3436,6 +4209,271 @@ void erts_silence_warn_unused_result(long unused) } +/* + * Interval counts + */ +void +erts_interval_init(erts_interval_t *icp) +{ +#ifdef ARCH_64 + erts_atomic_init_nob(&icp->counter.atomic, 0); +#else + erts_dw_aint_t dw; +#ifdef ETHR_SU_DW_NAINT_T__ + dw.dw_sint = 0; +#else + dw.sint[ERTS_DW_AINT_HIGH_WORD] = 0; + dw.sint[ERTS_DW_AINT_LOW_WORD] = 0; +#endif + erts_dw_atomic_init_nob(&icp->counter.atomic, &dw); + +#endif +#ifdef DEBUG + icp->smp_api = 0; +#endif +} + +void +erts_smp_interval_init(erts_interval_t *icp) +{ +#ifdef ERTS_SMP + erts_interval_init(icp); +#else + icp->counter.not_atomic = 0; +#endif +#ifdef DEBUG + icp->smp_api = 1; +#endif +} + +static ERTS_INLINE Uint64 +step_interval_nob(erts_interval_t *icp) +{ +#ifdef ARCH_64 + return (Uint64) erts_atomic_inc_read_nob(&icp->counter.atomic); +#else + erts_dw_aint_t exp; + + erts_dw_atomic_read_nob(&icp->counter.atomic, &exp); + while (1) { + erts_dw_aint_t new = exp; + +#ifdef ETHR_SU_DW_NAINT_T__ + new.dw_sint++; +#else + new.sint[ERTS_DW_AINT_LOW_WORD]++; + if (new.sint[ERTS_DW_AINT_LOW_WORD] == 0) + new.sint[ERTS_DW_AINT_HIGH_WORD]++; +#endif + + if (erts_dw_atomic_cmpxchg_nob(&icp->counter.atomic, &new, &exp)) + return erts_interval_dw_aint_to_val__(&new); + + } +#endif +} + +static ERTS_INLINE Uint64 +step_interval_relb(erts_interval_t *icp) +{ +#ifdef ARCH_64 + return (Uint64) erts_atomic_inc_read_relb(&icp->counter.atomic); +#else + erts_dw_aint_t exp; + + erts_dw_atomic_read_nob(&icp->counter.atomic, &exp); + while (1) { + erts_dw_aint_t new = exp; + +#ifdef ETHR_SU_DW_NAINT_T__ + new.dw_sint++; +#else + new.sint[ERTS_DW_AINT_LOW_WORD]++; + if (new.sint[ERTS_DW_AINT_LOW_WORD] == 0) + new.sint[ERTS_DW_AINT_HIGH_WORD]++; +#endif + + if (erts_dw_atomic_cmpxchg_relb(&icp->counter.atomic, &new, &exp)) + return erts_interval_dw_aint_to_val__(&new); + + } +#endif +} + + +static ERTS_INLINE Uint64 +ensure_later_interval_nob(erts_interval_t *icp, Uint64 ic) +{ + Uint64 curr_ic; +#ifdef ARCH_64 + curr_ic = (Uint64) erts_atomic_read_nob(&icp->counter.atomic); + if (curr_ic > ic) + return curr_ic; + return (Uint64) erts_atomic_inc_read_nob(&icp->counter.atomic); +#else + erts_dw_aint_t exp; + + erts_dw_atomic_read_nob(&icp->counter.atomic, &exp); + curr_ic = erts_interval_dw_aint_to_val__(&exp); + if (curr_ic > ic) + return curr_ic; + + while (1) { + erts_dw_aint_t new = exp; + +#ifdef ETHR_SU_DW_NAINT_T__ + new.dw_sint++; +#else + new.sint[ERTS_DW_AINT_LOW_WORD]++; + if (new.sint[ERTS_DW_AINT_LOW_WORD] == 0) + new.sint[ERTS_DW_AINT_HIGH_WORD]++; +#endif + + if (erts_dw_atomic_cmpxchg_nob(&icp->counter.atomic, &new, &exp)) + return erts_interval_dw_aint_to_val__(&new); + + curr_ic = erts_interval_dw_aint_to_val__(&exp); + if (curr_ic > ic) + return curr_ic; + } +#endif +} + + +static ERTS_INLINE Uint64 +ensure_later_interval_acqb(erts_interval_t *icp, Uint64 ic) +{ + Uint64 curr_ic; +#ifdef ARCH_64 + curr_ic = (Uint64) erts_atomic_read_acqb(&icp->counter.atomic); + if (curr_ic > ic) + return curr_ic; + return (Uint64) erts_atomic_inc_read_acqb(&icp->counter.atomic); +#else + erts_dw_aint_t exp; + + erts_dw_atomic_read_acqb(&icp->counter.atomic, &exp); + curr_ic = erts_interval_dw_aint_to_val__(&exp); + if (curr_ic > ic) + return curr_ic; + + while (1) { + erts_dw_aint_t new = exp; + +#ifdef ETHR_SU_DW_NAINT_T__ + new.dw_sint++; +#else + new.sint[ERTS_DW_AINT_LOW_WORD]++; + if (new.sint[ERTS_DW_AINT_LOW_WORD] == 0) + new.sint[ERTS_DW_AINT_HIGH_WORD]++; +#endif + + if (erts_dw_atomic_cmpxchg_acqb(&icp->counter.atomic, &new, &exp)) + return erts_interval_dw_aint_to_val__(&new); + + curr_ic = erts_interval_dw_aint_to_val__(&exp); + if (curr_ic > ic) + return curr_ic; + } +#endif +} + +Uint64 +erts_step_interval_nob(erts_interval_t *icp) +{ + ASSERT(!icp->smp_api); + return step_interval_nob(icp); +} + +Uint64 +erts_step_interval_relb(erts_interval_t *icp) +{ + ASSERT(!icp->smp_api); + return step_interval_relb(icp); +} + +Uint64 +erts_smp_step_interval_nob(erts_interval_t *icp) +{ + ASSERT(icp->smp_api); +#ifdef ERTS_SMP + return step_interval_nob(icp); +#else + return ++icp->counter.not_atomic; +#endif +} + +Uint64 +erts_smp_step_interval_relb(erts_interval_t *icp) +{ + ASSERT(icp->smp_api); +#ifdef ERTS_SMP + return step_interval_relb(icp); +#else + return ++icp->counter.not_atomic; +#endif +} + +Uint64 +erts_ensure_later_interval_nob(erts_interval_t *icp, Uint64 ic) +{ + ASSERT(!icp->smp_api); + return ensure_later_interval_nob(icp, ic); +} + +Uint64 +erts_ensure_later_interval_acqb(erts_interval_t *icp, Uint64 ic) +{ + ASSERT(!icp->smp_api); + return ensure_later_interval_acqb(icp, ic); +} + +Uint64 +erts_smp_ensure_later_interval_nob(erts_interval_t *icp, Uint64 ic) +{ + ASSERT(icp->smp_api); +#ifdef ERTS_SMP + return ensure_later_interval_nob(icp, ic); +#else + if (icp->counter.not_atomic > ic) + return icp->counter.not_atomic; + else + return ++icp->counter.not_atomic; +#endif +} + +Uint64 +erts_smp_ensure_later_interval_acqb(erts_interval_t *icp, Uint64 ic) +{ + ASSERT(icp->smp_api); +#ifdef ERTS_SMP + return ensure_later_interval_acqb(icp, ic); +#else + if (icp->counter.not_atomic > ic) + return icp->counter.not_atomic; + else + return ++icp->counter.not_atomic; +#endif +} + +/* + * A millisecond timestamp without time correction where there's no hrtime + * - for tracing on "long" things... + */ +Uint64 erts_timestamp_millis(void) +{ +#ifdef HAVE_GETHRTIME + return (Uint64) (sys_gethrtime() / 1000000); +#else + Uint64 res; + SysTimeval tv; + sys_gettimeofday(&tv); + res = (Uint64) tv.tv_sec*1000000; + res += (Uint64) tv.tv_usec; + return (res / 1000); +#endif +} + #ifdef DEBUG /* * Handy functions when using a debugger - don't use in the code! @@ -3468,7 +4506,7 @@ Process *p; void ppi(Eterm pid) { - pp(erts_pid2proc_unlocked(pid)); + pp(erts_proc_lookup(pid)); } void td(Eterm x) |