diff options
Diffstat (limited to 'erts/emulator/beam')
44 files changed, 3519 insertions, 1421 deletions
diff --git a/erts/emulator/beam/arith_instrs.tab b/erts/emulator/beam/arith_instrs.tab index 67cd7c6a2a..7c9cd47e28 100644 --- a/erts/emulator/beam/arith_instrs.tab +++ b/erts/emulator/beam/arith_instrs.tab @@ -28,7 +28,7 @@ OUTLINED_ARITH_2(Fail, Live, Name, BIF, Op1, Op2, Dst) { result = erts_gc_$Name (c_p, reg, live); HEAVY_SWAPIN; ERTS_HOLE_CHECK(c_p); - if (is_value(result)) { + if (ERTS_LIKELY(is_value(result))) { $REFRESH_GEN_DEST(); $Dst = result; $NEXT0(); @@ -49,10 +49,10 @@ plus.fetch(Op1, Op2) { } plus.execute(Fail, Live, Dst) { - if (is_both_small(PlusOp1, PlusOp2)) { + if (ERTS_LIKELY(is_both_small(PlusOp1, PlusOp2))) { Sint i = signed_val(PlusOp1) + signed_val(PlusOp2); ASSERT(MY_IS_SSMALL(i) == IS_SSMALL(i)); - if (MY_IS_SSMALL(i)) { + if (ERTS_LIKELY(MY_IS_SSMALL(i))) { $Dst = make_small(i); $NEXT0(); } @@ -72,10 +72,10 @@ minus.fetch(Op1, Op2) { } minus.execute(Fail, Live, Dst) { - if (is_both_small(MinusOp1, MinusOp2)) { + if (ERTS_LIKELY(is_both_small(MinusOp1, MinusOp2))) { Sint i = signed_val(MinusOp1) - signed_val(MinusOp2); ASSERT(MY_IS_SSMALL(i) == IS_SSMALL(i)); - if (MY_IS_SSMALL(i)) { + if (ERTS_LIKELY(MY_IS_SSMALL(i))) { $Dst = make_small(i); $NEXT0(); } @@ -98,10 +98,10 @@ increment.fetch(Src) { increment.execute(IncrementVal, Live, Dst) { increment_val = $IncrementVal; - if (is_small(increment_reg_val)) { + if (ERTS_LIKELY(is_small(increment_reg_val))) { Sint i = signed_val(increment_reg_val) + increment_val; ASSERT(MY_IS_SSMALL(i) == IS_SSMALL(i)); - if (MY_IS_SSMALL(i)) { + if (ERTS_LIKELY(MY_IS_SSMALL(i))) { $Dst = make_small(i); $NEXT0(); } @@ -113,7 +113,7 @@ increment.execute(IncrementVal, Live, Dst) { result = erts_gc_mixed_plus(c_p, reg, live); HEAVY_SWAPIN; ERTS_HOLE_CHECK(c_p); - if (is_value(result)) { + if (ERTS_LIKELY(is_value(result))) { $REFRESH_GEN_DEST(); $Dst = result; $NEXT0(); @@ -137,12 +137,12 @@ i_m_div(Fail, Live, Op1, Op2, Dst) { i_int_div(Fail, Live, Op1, Op2, Dst) { Eterm op1 = $Op1; Eterm op2 = $Op2; - if (op2 == SMALL_ZERO) { + if (ERTS_UNLIKELY(op2 == SMALL_ZERO)) { c_p->freason = BADARITH; $BIF_ERROR_ARITY_2($Fail, BIF_intdiv_2, op1, op2); - } else if (is_both_small(op1, op2)) { + } else if (ERTS_LIKELY(is_both_small(op1, op2))) { Sint ires = signed_val(op1) / signed_val(op2); - if (MY_IS_SSMALL(ires)) { + if (ERTS_LIKELY(MY_IS_SSMALL(ires))) { $Dst = make_small(ires); $NEXT0(); } @@ -162,15 +162,15 @@ rem.fetch(Src1, Src2) { } rem.execute(Fail, Live, Dst) { - if (RemOp2 == SMALL_ZERO) { - c_p->freason = BADARITH; - $BIF_ERROR_ARITY_2($Fail, BIF_rem_2, RemOp1, RemOp2); - } else if (is_both_small(RemOp1, RemOp2)) { - $Dst = make_small(signed_val(RemOp1) % signed_val(RemOp2)); - $NEXT0(); - } else { - $OUTLINED_ARITH_2($Fail, $Live, int_rem, BIF_rem_2, RemOp1, RemOp2, $Dst); - } + if (ERTS_UNLIKELY(RemOp2 == SMALL_ZERO)) { + c_p->freason = BADARITH; + $BIF_ERROR_ARITY_2($Fail, BIF_rem_2, RemOp1, RemOp2); + } else if (ERTS_LIKELY(is_both_small(RemOp1, RemOp2))) { + $Dst = make_small(signed_val(RemOp1) % signed_val(RemOp2)); + $NEXT0(); + } else { + $OUTLINED_ARITH_2($Fail, $Live, int_rem, BIF_rem_2, RemOp1, RemOp2, $Dst); + } } i_band := band.fetch.execute; @@ -185,7 +185,7 @@ band.fetch(Src1, Src2) { } band.execute(Fail, Live, Dst) { - if (is_both_small(BandOp1, BandOp2)) { + if (ERTS_LIKELY(is_both_small(BandOp1, BandOp2))) { /* * No need to untag -- TAG & TAG == TAG. */ @@ -196,7 +196,7 @@ band.execute(Fail, Live, Dst) { } i_bor(Fail, Live, Src1, Src2, Dst) { - if (is_both_small($Src1, $Src2)) { + if (ERTS_LIKELY(is_both_small($Src1, $Src2))) { /* * No need to untag -- TAG | TAG == TAG. */ @@ -207,7 +207,7 @@ i_bor(Fail, Live, Src1, Src2, Dst) { } i_bxor(Fail, Live, Src1, Src2, Dst) { - if (is_both_small($Src1, $Src2)) { + if (ERTS_LIKELY(is_both_small($Src1, $Src2))) { /* * TAG ^ TAG == 0. * @@ -232,7 +232,7 @@ shift.setup_bsr(Src1, Src2) { Op1 = $Src1; Op2 = $Src2; shift_left_count = 0; - if (is_small(Op2)) { + if (ERTS_LIKELY(is_small(Op2))) { shift_left_count = -signed_val(Op2); } else if (is_big(Op2)) { /* @@ -248,7 +248,7 @@ shift.setup_bsl(Src1, Src2) { Op1 = $Src1; Op2 = $Src2; shift_left_count = 0; - if (is_small(Op2)) { + if (ERTS_LIKELY(is_small(Op2))) { shift_left_count = signed_val(Op2); } else if (is_big(Op2)) { if (bignum_header_is_neg(*big_val(Op2))) { @@ -271,10 +271,10 @@ shift.setup_bsl(Src1, Src2) { shift.execute(Fail, Live, Dst) { Uint big_words_needed; - if (is_small(Op1)) { + if (ERTS_LIKELY(is_small(Op1))) { Sint int_res = signed_val(Op1); - if (shift_left_count == 0 || int_res == 0) { - if (is_not_integer(Op2)) { + if (ERTS_UNLIKELY(shift_left_count == 0 || int_res == 0)) { + if (ERTS_UNLIKELY(is_not_integer(Op2))) { goto shift_error; } if (int_res == 0) { @@ -343,7 +343,7 @@ shift.execute(Fail, Live, Dst) { HTOP += bignum_header_arity(*HTOP) + 1; } HEAP_SPACE_VERIFIED(0); - if (is_nil(Op1)) { + if (ERTS_UNLIKELY(is_nil(Op1))) { /* * This result must have been only slighty larger * than allowed since it wasn't caught by the @@ -381,7 +381,7 @@ shift.execute(Fail, Live, Dst) { i_int_bnot(Fail, Src, Live, Dst) { Eterm bnot_val = $Src; - if (is_small(bnot_val)) { + if (ERTS_LIKELY(is_small(bnot_val))) { bnot_val = make_small(~signed_val(bnot_val)); } else { Uint live = $Live; @@ -390,7 +390,7 @@ i_int_bnot(Fail, Src, Live, Dst) { bnot_val = erts_gc_bnot(c_p, reg, live); HEAVY_SWAPIN; ERTS_HOLE_CHECK(c_p); - if (is_nil(bnot_val)) { + if (ERTS_UNLIKELY(is_nil(bnot_val))) { $BIF_ERROR_ARITY_1($Fail, BIF_bnot_1, reg[live]); } $REFRESH_GEN_DEST(); diff --git a/erts/emulator/beam/atom.c b/erts/emulator/beam/atom.c index 1b691386eb..bbe1cb3e11 100644 --- a/erts/emulator/beam/atom.c +++ b/erts/emulator/beam/atom.c @@ -136,7 +136,7 @@ atom_hash(Atom* obj) while(len--) { v = *p++; /* latin1 clutch for r16 */ - if ((v & 0xFE) == 0xC2 && (*p & 0xC0) == 0x80) { + if (len && (v & 0xFE) == 0xC2 && (*p & 0xC0) == 0x80) { v = (v << 6) | (*p & 0x3F); p++; len--; } diff --git a/erts/emulator/beam/atom.names b/erts/emulator/beam/atom.names index a44d23b181..fc55b687d4 100644 --- a/erts/emulator/beam/atom.names +++ b/erts/emulator/beam/atom.names @@ -217,6 +217,8 @@ atom discard atom display_items atom dist atom dist_cmd +atom dist_ctrl_put_data +atom dist_data atom Div='/' atom div atom dlink diff --git a/erts/emulator/beam/beam_debug.c b/erts/emulator/beam/beam_debug.c index 49414ae8fc..21e295c63a 100644 --- a/erts/emulator/beam/beam_debug.c +++ b/erts/emulator/beam/beam_debug.c @@ -489,6 +489,14 @@ print_op(fmtfn_t to, void *to_arg, int op, int size, BeamInstr* addr) case 'n': /* Nil */ erts_print(to, to_arg, "[]"); break; + case 'S': /* Register */ + { + Uint reg_type = (*ap & 1) ? 'y' : 'x'; + Uint n = ap[0] / sizeof(Eterm); + erts_print(to, to_arg, "%c(%d)", reg_type, n); + ap++; + break; + } case 's': /* Any source (tagged constant or register) */ tag = loader_tag(*ap); if (tag == LOADER_X_REG) { diff --git a/erts/emulator/beam/beam_emu.c b/erts/emulator/beam/beam_emu.c index 2c37dc42b3..55990362ff 100644 --- a/erts/emulator/beam/beam_emu.c +++ b/erts/emulator/beam/beam_emu.c @@ -107,10 +107,6 @@ do { \ # define CHECK_ARGS(T) #endif -#ifndef MAX -#define MAX(x, y) (((x) > (y)) ? (x) : (y)) -#endif - #define GET_BIF_MODULE(p) (p->info.mfa.module) #define GET_BIF_FUNCTION(p) (p->info.mfa.function) #define GET_BIF_ARITY(p) (p->info.mfa.arity) @@ -392,9 +388,8 @@ static BeamInstr* call_error_handler(Process* p, ErtsCodeMFA* mfa, Eterm* reg, Eterm func) NOINLINE; static BeamInstr* fixed_apply(Process* p, Eterm* reg, Uint arity, BeamInstr *I, Uint offs) NOINLINE; -static BeamInstr* apply(Process* p, Eterm module, Eterm function, - Eterm args, Eterm* reg, - BeamInstr *I, Uint offs) NOINLINE; +static BeamInstr* apply(Process* p, Eterm* reg, + BeamInstr *I, Uint offs) NOINLINE; static BeamInstr* call_fun(Process* p, int arity, Eterm* reg, Eterm args) NOINLINE; static BeamInstr* apply_fun(Process* p, Eterm fun, @@ -439,6 +434,12 @@ init_emulator(void) # define REG_stop asm("%l3") # define REG_I asm("%l4") # define REG_fcalls asm("%l5") +#elif defined(__GNUC__) && defined(__amd64__) && !defined(DEBUG) +# define REG_xregs asm("%r12") +# define REG_htop +# define REG_stop asm("%r13") +# define REG_I asm("%rbx") +# define REG_fcalls asm("%r14") #else # define REG_xregs # define REG_htop @@ -644,7 +645,7 @@ void process_main(Eterm * x_reg_array, FloatDef* f_reg_array) * Note: c_p->arity must be set to reflect the number of useful terms in * c_p->arg_reg before calling the scheduler. */ - if (!init_done) { + if (ERTS_UNLIKELY(!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. */ @@ -870,6 +871,8 @@ void process_main(Eterm * x_reg_array, FloatDef* f_reg_array) goto do_schedule1; } +#include "beam_warm.h" + OpCase(normal_exit): { SWAPOUT; c_p->freason = EXC_NORMAL; @@ -2174,13 +2177,14 @@ apply_bif_error_adjustment(Process *p, Export *ep, } static BeamInstr* -apply( -Process* p, Eterm module, Eterm function, Eterm args, Eterm* reg, -BeamInstr *I, Uint stack_offset) +apply(Process* p, Eterm* reg, BeamInstr *I, Uint stack_offset) { int arity; Export* ep; Eterm tmp; + Eterm module = reg[0]; + Eterm function = reg[1]; + Eterm args = reg[2]; /* * Check the arguments which should be of the form apply(Module, @@ -2297,8 +2301,9 @@ fixed_apply(Process* p, Eterm* reg, Uint arity, if (is_not_atom(module)) goto error; /* Handle apply of apply/3... */ - if (module == am_erlang && function == am_apply && arity == 3) - return apply(p, reg[0], reg[1], reg[2], reg, I, stack_offset); + if (module == am_erlang && function == am_apply && arity == 3) { + return apply(p, reg, I, stack_offset); + } /* * Get the index into the export table, or failing that the export @@ -2319,10 +2324,13 @@ fixed_apply(Process* p, Eterm* reg, Uint arity, } int -erts_hibernate(Process* c_p, Eterm module, Eterm function, Eterm args, Eterm* reg) +erts_hibernate(Process* c_p, Eterm* reg) { int arity; Eterm tmp; + Eterm module = reg[0]; + Eterm function = reg[1]; + Eterm args = reg[2]; if (is_not_atom(module) || is_not_atom(function)) { /* diff --git a/erts/emulator/beam/beam_load.c b/erts/emulator/beam/beam_load.c index 9ff32e30f3..7d3a19ff86 100644 --- a/erts/emulator/beam/beam_load.c +++ b/erts/emulator/beam/beam_load.c @@ -2034,30 +2034,10 @@ load_code(LoaderState* stp) case 0: /* Floating point number. * Not generated by the compiler in R16B and later. + * (The literal pool is used instead.) */ - { - Eterm* hp; -#if !defined(ARCH_64) - Uint high, low; -# endif - last_op->a[arg].val = new_literal(stp, &hp, - FLOAT_SIZE_OBJECT); - hp[0] = HEADER_FLONUM; - last_op->a[arg].type = TAG_q; -#if defined(ARCH_64) - GetInt(stp, 8, hp[1]); -# else - GetInt(stp, 4, high); - GetInt(stp, 4, low); - if (must_swap_floats) { - Uint t = high; - high = low; - low = t; - } - hp[1] = high; - hp[2] = low; -# endif - } + LoadError0(stp, "please re-compile this module with an " + ERLANG_OTP_RELEASE " compiler"); break; case 1: /* List. */ if (arg+1 != arity) { @@ -5372,12 +5352,15 @@ get_tag_and_value(LoaderState* stp, Uint len_code, { Uint count; Sint val; - byte default_buf[128]; - byte* bigbuf = default_buf; + byte default_byte_buf[128]; + byte* byte_buf = default_byte_buf; + Eterm default_big_buf[128/sizeof(Eterm)]; + Eterm* big_buf = default_big_buf; + Eterm tmp_big; byte* s; int i; int neg = 0; - Uint arity; + Uint words_needed; Eterm* hp; /* @@ -5454,8 +5437,11 @@ get_tag_and_value(LoaderState* stp, Uint len_code, *result = val; return TAG_i; } else { - *result = new_literal(stp, &hp, BIG_UINT_HEAP_SIZE); - (void) small_to_big(val, hp); + tmp_big = small_to_big(val, big_buf); + if (!find_literal(stp, tmp_big, result)) { + *result = new_literal(stp, &hp, BIG_UINT_HEAP_SIZE); + sys_memcpy(hp, big_buf, BIG_UINT_HEAP_SIZE*sizeof(Eterm)); + } return TAG_q; } } @@ -5465,8 +5451,8 @@ get_tag_and_value(LoaderState* stp, Uint len_code, * (including margin). */ - if (count+8 > sizeof(default_buf)) { - bigbuf = erts_alloc(ERTS_ALC_T_LOADER_TMP, count+8); + if (count+8 > sizeof(default_byte_buf)) { + byte_buf = erts_alloc(ERTS_ALC_T_LOADER_TMP, count+8); } /* @@ -5475,20 +5461,20 @@ get_tag_and_value(LoaderState* stp, Uint len_code, GetString(stp, s, count); for (i = 0; i < count; i++) { - bigbuf[count-i-1] = *s++; + byte_buf[count-i-1] = *s++; } /* * Check if the number is negative, and negate it if so. */ - if ((bigbuf[count-1] & 0x80) != 0) { + if ((byte_buf[count-1] & 0x80) != 0) { unsigned carry = 1; neg = 1; for (i = 0; i < count; i++) { - bigbuf[i] = ~bigbuf[i] + carry; - carry = (bigbuf[i] == 0 && carry == 1); + byte_buf[i] = ~byte_buf[i] + carry; + carry = (byte_buf[i] == 0 && carry == 1); } ASSERT(carry == 0); } @@ -5497,33 +5483,52 @@ get_tag_and_value(LoaderState* stp, Uint len_code, * Align to word boundary. */ - if (bigbuf[count-1] == 0) { + if (byte_buf[count-1] == 0) { count--; } - if (bigbuf[count-1] == 0) { + if (byte_buf[count-1] == 0) { LoadError0(stp, "bignum not normalized"); } while (count % sizeof(Eterm) != 0) { - bigbuf[count++] = 0; + byte_buf[count++] = 0; } /* - * Allocate heap space for the bignum and copy it. + * Convert to a bignum. */ - arity = count/sizeof(Eterm); - *result = new_literal(stp, &hp, arity+1); - if (is_nil(bytes_to_big(bigbuf, count, neg, hp))) - goto load_error; + words_needed = count/sizeof(Eterm) + 1; + if (words_needed*sizeof(Eterm) > sizeof(default_big_buf)) { + big_buf = erts_alloc(ERTS_ALC_T_LOADER_TMP, words_needed*sizeof(Eterm)); + } + tmp_big = bytes_to_big(byte_buf, count, neg, big_buf); + if (is_nil(tmp_big)) { + goto load_error; + } + + /* + * Create a literal if there is no previous literal with the same value. + */ - if (bigbuf != default_buf) { - erts_free(ERTS_ALC_T_LOADER_TMP, (void *) bigbuf); + if (!find_literal(stp, tmp_big, result)) { + *result = new_literal(stp, &hp, words_needed); + sys_memcpy(hp, big_buf, words_needed*sizeof(Eterm)); + } + + if (byte_buf != default_byte_buf) { + erts_free(ERTS_ALC_T_LOADER_TMP, (void *) byte_buf); + } + if (big_buf != default_big_buf) { + erts_free(ERTS_ALC_T_LOADER_TMP, (void *) big_buf); } return TAG_q; load_error: - if (bigbuf != default_buf) { - erts_free(ERTS_ALC_T_LOADER_TMP, (void *) bigbuf); + if (byte_buf != default_byte_buf) { + erts_free(ERTS_ALC_T_LOADER_TMP, (void *) byte_buf); + } + if (big_buf != default_big_buf) { + erts_free(ERTS_ALC_T_LOADER_TMP, (void *) big_buf); } return -1; } diff --git a/erts/emulator/beam/bif.c b/erts/emulator/beam/bif.c index 7e26af5abd..ded6c6f1a4 100644 --- a/erts/emulator/beam/bif.c +++ b/erts/emulator/beam/bif.c @@ -437,7 +437,6 @@ BIF_RETTYPE demonitor(Process *c_p, Eterm ref, Eterm *multip) ErtsMonitor *mon = NULL; /* The monitor entry to delete */ Eterm to = NIL; /* Monitor link traget */ DistEntry *dep = NULL; /* Target's distribution entry */ - int deref_de = 0; BIF_RETTYPE res = am_false; int unlock_link = 1; @@ -467,8 +466,6 @@ BIF_RETTYPE demonitor(Process *c_p, Eterm ref, Eterm *multip) ASSERT(is_node_name_atom(to)); dep = erts_sysname_to_connected_dist_entry(to); ASSERT(dep != erts_this_dist_entry); - if (dep) - deref_de = 1; } else if (is_port(to)) { if (port_dist_entry(to) != erts_this_dist_entry) { goto badarg; @@ -486,11 +483,6 @@ BIF_RETTYPE demonitor(Process *c_p, Eterm ref, Eterm *multip) unlock_link = 0; } else { /* Local monitor */ - if (deref_de) { - deref_de = 0; - erts_deref_dist_entry(dep); - } - dep = NULL; demonitor_local_process(c_p, ref, to, &res); } break; @@ -505,11 +497,6 @@ done: if (unlock_link) erts_proc_unlock(c_p, ERTS_PROC_LOCK_LINK); - if (deref_de) { - ASSERT(dep); - erts_deref_dist_entry(dep); - } - ERTS_LC_ASSERT(ERTS_PROC_LOCK_MAIN == erts_proc_lc_my_proc_locks(c_p)); BIF_RET(res); } @@ -844,7 +831,6 @@ BIF_RETTYPE monitor_2(BIF_ALIST_2) Eterm target = BIF_ARG_2; BIF_RETTYPE ret; DistEntry *dep = NULL; - int deref_de = 0; /* Only process monitors are implemented */ switch (BIF_ARG_1) { @@ -904,21 +890,14 @@ local_port: } dep = erts_sysname_to_connected_dist_entry(remote_node); if (dep == erts_this_dist_entry) { - deref_de = 1; ret = local_name_monitor(BIF_P, BIF_ARG_1, name); } else { - if (dep) - deref_de = 1; ret = remote_monitor(BIF_P, BIF_ARG_1, BIF_ARG_2, dep, name, 1); } } else { badarg: ERTS_BIF_PREP_ERROR(ret, BIF_P, BADARG); } - if (deref_de) { - deref_de = 0; - erts_deref_dist_entry(dep); - } return ret; } @@ -1271,7 +1250,11 @@ BIF_RETTYPE hibernate_3(BIF_ALIST_3) */ Eterm reg[3]; - if (erts_hibernate(BIF_P, BIF_ARG_1, BIF_ARG_2, BIF_ARG_3, reg)) { + reg[0] = BIF_ARG_1; + reg[1] = BIF_ARG_2; + reg[2] = BIF_ARG_3; + + if (erts_hibernate(BIF_P, reg)) { /* * If hibernate succeeded, TRAP. The process will be wait in a * hibernated state if its state is inactive (!ERTS_PSFLG_ACTIVE); @@ -2000,6 +1983,7 @@ static Sint remote_send(Process *p, DistEntry *dep, ASSERT(is_atom(to) || is_external_pid(to)); + ctx->dep = dep; code = erts_dsig_prepare(&ctx->dsd, dep, p, ERTS_DSP_NO_LOCK, !ctx->suspend); switch (code) { case ERTS_DSIG_PREP_NOT_ALIVE: @@ -2201,7 +2185,6 @@ do_send(Process *p, Eterm to, Eterm msg, Eterm *refp, ErtsSendContext *ctx) if (dep == erts_this_dist_entry) { Eterm id; - erts_deref_dist_entry(dep); if (IS_TRACED_FL(p, F_TRACE_SEND)) trace_send(p, to, msg); if (ERTS_PROC_GET_SAVED_CALLS_BUF(p)) @@ -2224,11 +2207,9 @@ do_send(Process *p, Eterm to, Eterm msg, Eterm *refp, ErtsSendContext *ctx) } ret = remote_send(p, dep, tp[1], to, msg, ctx); - if (ret != SEND_YIELD_CONTINUE) { - if (dep) { - erts_deref_dist_entry(dep); - } - } else { + if (ret == SEND_YIELD_CONTINUE) { + if (dep) + erts_ref_dist_entry(dep); ctx->dep_to_deref = dep; } return ret; @@ -4164,7 +4145,6 @@ BIF_RETTYPE list_to_pid_1(BIF_ALIST_1) goto bad; if(dep == erts_this_dist_entry) { - erts_deref_dist_entry(dep); BIF_RET(make_internal_pid(make_pid_data(c, b))); } else { @@ -4184,13 +4164,10 @@ BIF_RETTYPE list_to_pid_1(BIF_ALIST_1) etp->data.ui[0] = make_pid_data(c, b); MSO(BIF_P).first = (struct erl_off_heap_header*) etp; - erts_deref_dist_entry(dep); BIF_RET(make_external_pid(etp)); } bad: - if (dep) - erts_deref_dist_entry(dep); if (buf) erts_free(ERTS_ALC_T_TMP, (void *) buf); BIF_ERROR(BIF_P, BADARG); @@ -4235,7 +4212,6 @@ BIF_RETTYPE list_to_port_1(BIF_ALIST_1) goto bad; if(dep == erts_this_dist_entry) { - erts_deref_dist_entry(dep); BIF_RET(make_internal_port(p)); } else { @@ -4255,13 +4231,10 @@ BIF_RETTYPE list_to_port_1(BIF_ALIST_1) etp->data.ui[0] = p; MSO(BIF_P).first = (struct erl_off_heap_header*) etp; - erts_deref_dist_entry(dep); BIF_RET(make_external_port(etp)); } bad: - if (dep) - erts_deref_dist_entry(dep); BIF_ERROR(BIF_P, BADARG); } @@ -4381,12 +4354,9 @@ BIF_RETTYPE list_to_ref_1(BIF_ALIST_1) res = make_external_ref(etp); } - erts_deref_dist_entry(dep); BIF_RET(res); bad: - if (dep) - erts_deref_dist_entry(dep); BIF_ERROR(BIF_P, BADARG); } diff --git a/erts/emulator/beam/bif.tab b/erts/emulator/beam/bif.tab index 962b00ae7b..f7b4451890 100644 --- a/erts/emulator/beam/bif.tab +++ b/erts/emulator/beam/bif.tab @@ -154,6 +154,12 @@ bif erlang:spawn_opt/1 bif erlang:setnode/2 bif erlang:setnode/3 bif erlang:dist_exit/3 +bif erlang:dist_get_stat/1 +bif erlang:dist_ctrl_input_handler/2 +bif erlang:dist_ctrl_put_data/2 +bif erlang:dist_ctrl_get_data/1 +bif erlang:dist_ctrl_get_data_notification/1 + # Static native functions in erts_internal bif erts_internal:port_info/1 @@ -679,3 +685,9 @@ bif math:ceil/1 bif math:fmod/2 bif os:set_signal/2 bif erts_internal:maps_to_list/2 + +# +# New in 20.1 +# + +bif erlang:iolist_to_iovec/1 diff --git a/erts/emulator/beam/bif_instrs.tab b/erts/emulator/beam/bif_instrs.tab index 5aa0523e06..3c95113907 100644 --- a/erts/emulator/beam/bif_instrs.tab +++ b/erts/emulator/beam/bif_instrs.tab @@ -45,7 +45,7 @@ CALL_GUARD_BIF(BF, TmpReg, Dst) { ERTS_HOLE_CHECK(c_p); FCALLS = c_p->fcalls; ERTS_DBG_CHK_REDS(c_p, FCALLS); - if (is_value(result)) { + if (ERTS_LIKELY(is_value(result))) { $Dst = result; $NEXT0(); } @@ -145,12 +145,12 @@ i_gc_bif1(Fail, Bif, Src, Live, Dst) { ERTS_HOLE_CHECK(c_p); FCALLS = c_p->fcalls; ERTS_DBG_CHK_REDS(c_p, FCALLS); - if (is_value(result)) { + if (ERTS_LIKELY(is_value(result))) { $REFRESH_GEN_DEST(); $Dst = result; $NEXT0(); } - if ($Fail != 0) { /* Handle error in guard. */ + if (ERTS_LIKELY($Fail != 0)) { /* Handle error in guard. */ $NEXT($Fail); } @@ -195,13 +195,13 @@ i_gc_bif2(Fail, Bif, Live, Src1, Src2, Dst) { ERTS_HOLE_CHECK(c_p); FCALLS = c_p->fcalls; ERTS_DBG_CHK_REDS(c_p, FCALLS); - if (is_value(result)) { + if (ERTS_LIKELY(is_value(result))) { $REFRESH_GEN_DEST(); $Dst = result; $NEXT0(); } - if ($Fail != 0) { /* Handle error in guard. */ + if (ERTS_LIKELY($Fail != 0)) { /* Handle error in guard. */ $NEXT($Fail); } @@ -249,14 +249,14 @@ i_gc_bif3(Fail, Bif, Live, Src2, Src3, Dst) { ERTS_HOLE_CHECK(c_p); FCALLS = c_p->fcalls; ERTS_DBG_CHK_REDS(c_p, FCALLS); - if (is_value(result)) { + if (ERTS_LIKELY(is_value(result))) { $REFRESH_GEN_DEST(); $Dst = result; $NEXT0(); } /* Handle error in guard. */ - if ($Fail != 0) { + if (ERTS_LIKELY($Fail != 0)) { $NEXT($Fail); } @@ -325,7 +325,7 @@ call_bif(Exp) { ERTS_MSACC_UPDATE_CACHE_X(); } ERTS_MSACC_SET_STATE_CACHED_M_X(ERTS_MSACC_STATE_EMULATOR); - if (is_value(result)) { + if (ERTS_LIKELY(is_value(result))) { r(0) = result; CHECK_TERM(r(0)); $NEXT0(); @@ -370,7 +370,7 @@ send() { PROCESS_MAIN_CHK_LOCKS(c_p); HTOP = HEAP_TOP(c_p); FCALLS = c_p->fcalls; - if (is_value(result)) { + if (ERTS_LIKELY(is_value(result))) { r(0) = result; CHECK_TERM(r(0)); } else if (c_p->freason == TRAP) { @@ -520,7 +520,7 @@ nif_bif.epilogue() { SWAPIN; /* There might have been a garbage collection. */ FCALLS = c_p->fcalls; ERTS_DBG_CHK_REDS(c_p, FCALLS); - if (is_value(nif_bif_result)) { + if (ERTS_LIKELY(is_value(nif_bif_result))) { r(0) = nif_bif_result; CHECK_TERM(r(0)); SET_I(c_p->cp); diff --git a/erts/emulator/beam/dist.c b/erts/emulator/beam/dist.c index 491c4d378e..bc168fc58d 100644 --- a/erts/emulator/beam/dist.c +++ b/erts/emulator/beam/dist.c @@ -121,7 +121,7 @@ Export* dexit_trap = NULL; Export* dmonitor_p_trap = NULL; /* local variables */ - +static Export *dist_ctrl_put_data_trap; /* forward declarations */ @@ -156,9 +156,7 @@ create_cache(DistEntry *dep) int i; ErtsAtomCache *cp; - ERTS_LC_ASSERT( - is_internal_port(dep->cid) - && erts_lc_is_port_locked(erts_port_lookup_raw(dep->cid))); + ERTS_LC_ASSERT(is_nil(dep->cid)); ASSERT(!dep->cache); dep->cache = cp = (ErtsAtomCache*) erts_alloc(ERTS_ALC_T_DCACHE, @@ -176,11 +174,13 @@ Uint erts_dist_cache_size(void) } static ErtsProcList * -get_suspended_on_de(DistEntry *dep, Uint32 unset_qflgs) +get_suspended_on_de(DistEntry *dep, erts_aint32_t unset_qflgs) { + erts_aint32_t qflgs; ERTS_LC_ASSERT(erts_lc_mtx_is_locked(&dep->qlock)); - dep->qflgs &= ~unset_qflgs; - if (dep->qflgs & ERTS_DE_QFLG_EXIT) { + qflgs = erts_atomic32_read_band_acqb(&dep->qflgs, ~unset_qflgs); + qflgs &= ~unset_qflgs; + if (qflgs & ERTS_DE_QFLG_EXIT) { /* No resume when exit has been scheduled */ return NULL; } @@ -446,7 +446,35 @@ inc_no_nodes(void) #endif erts_atomic_inc_mb(&no_nodes); } - + +static void +kill_dist_ctrl_proc(void *vpid) +{ + Eterm pid = (Eterm) vpid; + ErtsProcLocks rp_locks = ERTS_PROC_LOCKS_XSIG_SEND; + Process *rp = erts_pid2proc(NULL, 0, pid, rp_locks); + if (rp) { + erts_send_exit_signal(NULL, rp->common.id, rp, &rp_locks, + am_kill, NIL, NULL, 0); + if (rp_locks) + erts_proc_unlock(rp, rp_locks); + } +} + +static void +schedule_kill_dist_ctrl_proc(Eterm pid) +{ + ErtsSchedulerData *esdp = erts_get_scheduler_data(); + int sched_id = 1; + if (!esdp || ERTS_SCHEDULER_IS_DIRTY(esdp)) + sched_id = 1; + else + sched_id = (int) esdp->no; + erts_schedule_misc_aux_work(sched_id, + kill_dist_ctrl_proc, + (void *) (UWord) pid); +} + /* * proc is currently running or exiting process. */ @@ -456,58 +484,62 @@ int erts_do_net_exits(DistEntry *dep, Eterm reason) if (dep == erts_this_dist_entry) { /* Net kernel has died (clean up!!) */ DistEntry *tdep; - int no_dist_port = 0; + int no_dist_ctrl = 0; Eterm nd_reason = (reason == am_no_network ? am_no_network : am_net_kernel_terminated); erts_rwmtx_rlock(&erts_dist_table_rwmtx); for (tdep = erts_hidden_dist_entries; tdep; tdep = tdep->next) - no_dist_port++; + no_dist_ctrl++; for (tdep = erts_visible_dist_entries; tdep; tdep = tdep->next) - no_dist_port++; + no_dist_ctrl++; /* KILL all port controllers */ - if (no_dist_port == 0) + if (no_dist_ctrl == 0) erts_rwmtx_runlock(&erts_dist_table_rwmtx); else { Eterm def_buf[128]; int i = 0; - Eterm *dist_port; + Eterm *dist_ctrl; - if (no_dist_port <= sizeof(def_buf)/sizeof(def_buf[0])) - dist_port = &def_buf[0]; + if (no_dist_ctrl <= sizeof(def_buf)/sizeof(def_buf[0])) + dist_ctrl = &def_buf[0]; else - dist_port = erts_alloc(ERTS_ALC_T_TMP, - sizeof(Eterm)*no_dist_port); + dist_ctrl = erts_alloc(ERTS_ALC_T_TMP, + sizeof(Eterm)*no_dist_ctrl); for (tdep = erts_hidden_dist_entries; tdep; tdep = tdep->next) { - ASSERT(is_internal_port(tdep->cid)); - dist_port[i++] = tdep->cid; + ASSERT(is_internal_port(tdep->cid) || is_internal_pid(tdep->cid)); + dist_ctrl[i++] = tdep->cid; } for (tdep = erts_visible_dist_entries; tdep; tdep = tdep->next) { - ASSERT(is_internal_port(tdep->cid)); - dist_port[i++] = tdep->cid; + ASSERT(is_internal_port(tdep->cid) || is_internal_pid(tdep->cid)); + dist_ctrl[i++] = tdep->cid; } erts_rwmtx_runlock(&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_port_exit(NULL, ERTS_PORT_SIG_FLG_FORCE_SCHED, - prt, dist_port[i], nd_reason, NULL); + for (i = 0; i < no_dist_ctrl; i++) { + if (is_internal_pid(dist_ctrl[i])) + schedule_kill_dist_ctrl_proc(dist_ctrl[i]); + else { + Port *prt = erts_port_lookup(dist_ctrl[i], + ERTS_PORT_SFLGS_INVALID_LOOKUP); + if (prt) { + ASSERT(erts_atomic32_read_nob(&prt->state) + & ERTS_PORT_SFLG_DISTRIBUTION); + + erts_port_exit(NULL, ERTS_PORT_SIG_FLG_FORCE_SCHED, + prt, dist_ctrl[i], nd_reason, NULL); + } + } } - if (dist_port != &def_buf[0]) - erts_free(ERTS_ALC_T_TMP, dist_port); + if (dist_ctrl != &def_buf[0]) + erts_free(ERTS_ALC_T_TMP, dist_ctrl); } /* - * When last dist port exits, node will be taken + * When last dist ctrl exits, node will be taken * from alive to not alive. */ ASSERT(is_nil(nodedown.reason) && !nodedown.bp); @@ -524,7 +556,7 @@ int erts_do_net_exits(DistEntry *dep, Eterm reason) &nodedown.bp->off_heap); } } - else { /* Call from distribution port */ + else { /* Call from distribution controller (port/process) */ NetExitsContext nec = {dep}; ErtsLink *nlinks; ErtsLink *node_links; @@ -534,24 +566,23 @@ int erts_do_net_exits(DistEntry *dep, Eterm reason) erts_atomic_set_mb(&dep->dist_cmd_scheduled, 1); erts_de_rwlock(dep); - ERTS_LC_ASSERT(is_internal_port(dep->cid) - && erts_lc_is_port_locked(erts_port_lookup_raw(dep->cid))); + if (is_internal_port(dep->cid)) { + ERTS_LC_ASSERT(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->dist_cmd); + if (erts_port_task_is_scheduled(&dep->dist_cmd)) + erts_port_task_abort(&dep->dist_cmd); + } if (dep->status & ERTS_DE_SFLG_EXITING) { #ifdef DEBUG - erts_mtx_lock(&dep->qlock); - ASSERT(dep->qflgs & ERTS_DE_QFLG_EXIT); - erts_mtx_unlock(&dep->qlock); + ASSERT(erts_atomic32_read_nob(&dep->qflgs) & ERTS_DE_QFLG_EXIT); #endif } else { dep->status |= ERTS_DE_SFLG_EXITING; erts_mtx_lock(&dep->qlock); - ASSERT(!(dep->qflgs & ERTS_DE_QFLG_EXIT)); - dep->qflgs |= ERTS_DE_QFLG_EXIT; + ASSERT(!(erts_atomic32_read_nob(&dep->qflgs) & ERTS_DE_QFLG_EXIT)); + erts_atomic32_read_bor_relb(&dep->qflgs, ERTS_DE_QFLG_EXIT); erts_mtx_unlock(&dep->qlock); } @@ -616,6 +647,9 @@ void init_dist(void) dgroup_leader_trap = trap_function(am_dgroup_leader,2); dexit_trap = trap_function(am_dexit, 2); dmonitor_p_trap = trap_function(am_dmonitor_p, 2); + dist_ctrl_put_data_trap = erts_export_put(am_erts_internal, + am_dist_ctrl_put_data, + 2); } #define ErtsDistOutputBuf2Binary(OB) \ @@ -658,6 +692,8 @@ static void clear_dist_entry(DistEntry *dep) ErtsDistOutputBuf *obuf; erts_de_rwlock(dep); + erts_atomic_set_nob(&dep->input_handler, + (erts_aint_t) NIL); cache = dep->cache; dep->cache = NULL; @@ -671,6 +707,9 @@ static void clear_dist_entry(DistEntry *dep) erts_mtx_lock(&dep->qlock); + erts_atomic64_set_nob(&dep->in, 0); + erts_atomic64_set_nob(&dep->out, 0); + if (!dep->out_queue.last) obuf = dep->finalized_out_queue.first; else { @@ -678,8 +717,15 @@ static void clear_dist_entry(DistEntry *dep) obuf = dep->out_queue.first; } + if (dep->tmp_out_queue.first) { + dep->tmp_out_queue.last->next = obuf; + obuf = dep->tmp_out_queue.first; + } + dep->out_queue.first = NULL; dep->out_queue.last = NULL; + dep->tmp_out_queue.first = NULL; + dep->tmp_out_queue.last = NULL; dep->finalized_out_queue.first = NULL; dep->finalized_out_queue.last = NULL; dep->status = 0; @@ -704,8 +750,9 @@ static void clear_dist_entry(DistEntry *dep) if (obufsize) { erts_mtx_lock(&dep->qlock); - ASSERT(dep->qsize >= obufsize); - dep->qsize -= obufsize; + ASSERT(erts_atomic_read_nob(&dep->qsize) >= obufsize); + erts_atomic_add_nob(&dep->qsize, + (erts_aint_t) -obufsize); erts_mtx_unlock(&dep->qlock); } } @@ -904,11 +951,30 @@ erts_dsig_send_msg(Eterm remote, Eterm message, ErtsSendContext* ctx) } #endif - if (token != NIL) - ctl = TUPLE4(&ctx->ctl_heap[0], - make_small(DOP_SEND_TT), am_Empty, remote, token); - else - ctl = TUPLE3(&ctx->ctl_heap[0], make_small(DOP_SEND), am_Empty, remote); + if (token != NIL) { + Eterm el1, el2; + if (ctx->dep->flags & DFLAG_SEND_SENDER) { + el1 = make_small(DOP_SEND_SENDER_TT); + el2 = sender->common.id; + } + else { + el1 = make_small(DOP_SEND_TT); + el2 = am_Empty; + } + ctl = TUPLE4(&ctx->ctl_heap[0], el1, el2, remote, token); + } + else { + Eterm el1, el2; + if (ctx->dep->flags & DFLAG_SEND_SENDER) { + el1 = make_small(DOP_SEND_SENDER); + el2 = sender->common.id; + } + else { + el1 = make_small(DOP_SEND); + el2 = am_Empty; + } + ctl = TUPLE3(&ctx->ctl_heap[0], el1, el2, remote); + } DTRACE6(message_send, sender_name, receiver_name, msize, tok_label, tok_lastcnt, tok_serial); DTRACE7(message_send_remote, sender_name, node_name, receiver_name, @@ -1145,6 +1211,7 @@ int erts_net_message(Port *prt, ErtsLink *lnk; Uint tuple_arity; int res; + Uint32 connection_id; #ifdef ERTS_DIST_MSG_DBG ErlDrvSizeT orig_len = len; #endif @@ -1153,14 +1220,16 @@ int erts_net_message(Port *prt, ERTS_CHK_NO_PROC_LOCKS; - ERTS_LC_ASSERT(erts_lc_is_port_locked(prt)); + ERTS_LC_ASSERT(!prt || erts_lc_is_port_locked(prt)); if (!erts_is_alive) { UnUseTmpHeapNoproc(DIST_CTL_DEFAULT_SIZE); return 0; } - if (hlen != 0) - goto data_error; + + + ASSERT(hlen == 0); + if (len == 0) { /* HANDLE TICK !!! */ UnUseTmpHeapNoproc(DIST_CTL_DEFAULT_SIZE); return 0; @@ -1179,30 +1248,31 @@ int erts_net_message(Port *prt, len--; } - if (len == 0) { - PURIFY_MSG("data error"); - goto data_error; - } - - res = erts_prepare_dist_ext(&ede, t, len, dep, dep->cache); + res = erts_prepare_dist_ext(&ede, t, len, dep, dep->cache, &connection_id); - if (res >= 0) - res = ctl_len = erts_decode_dist_ext_size(&ede); - else { + switch (res) { + case ERTS_PREP_DIST_EXT_CLOSED: + return 0; /* Connection not alive; ignore signal... */ + case ERTS_PREP_DIST_EXT_FAILED: #ifdef ERTS_DIST_MSG_DBG erts_fprintf(stderr, "DIST MSG DEBUG: erts_prepare_dist_ext() failed:\n"); bw(buf, orig_len); #endif - ctl_len = 0; - } - - if (res < 0) { + goto data_error; + case ERTS_PREP_DIST_EXT_SUCCESS: + ctl_len = erts_decode_dist_ext_size(&ede); + if (ctl_len < 0) { #ifdef ERTS_DIST_MSG_DBG - erts_fprintf(stderr, "DIST MSG DEBUG: erts_decode_dist_ext_size(CTL) failed:\n"); - bw(buf, orig_len); + erts_fprintf(stderr, "DIST MSG DEBUG: erts_decode_dist_ext_size(CTL) failed:\n"); + bw(buf, orig_len); #endif - PURIFY_MSG("data error"); - goto data_error; + PURIFY_MSG("data error"); + goto data_error; + } + break; + default: + ERTS_INTERNAL_ERROR("Unexpected result from erts_prepare_dist_ext()"); + break; } if (ctl_len > DIST_CTL_DEFAULT_SIZE) { @@ -1233,6 +1303,7 @@ int erts_net_message(Port *prt, } token_size = 0; + token = NIL; switch (type = unsigned_val(tuple[1])) { case DOP_LINK: @@ -1462,38 +1533,52 @@ int erts_net_message(Port *prt, } break; + case DOP_SEND_SENDER_TT: { + Uint xsize; case DOP_SEND_TT: + if (tuple_arity != 4) { goto invalid_message; } - - token_size = size_object(tuple[4]); - /* Fall through ... */ + + token = tuple[4]; + token_size = size_object(token); + xsize = ERTS_HEAP_FRAG_SIZE(token_size); + goto send_common; + + case DOP_SEND_SENDER: case DOP_SEND: + + token = NIL; + xsize = 0; + if (tuple_arity != 3) + goto invalid_message; + + send_common: + /* - * There is intentionally no testing of the cookie (it is always '') - * from R9B and onwards. + * If DOP_SEND_SENDER or DOP_SEND_SENDER_TT element 2 contains + * the sender pid (i.e. DFLAG_SEND_SENDER is set); otherwise, + * the atom '' (empty cookie). */ + ASSERT((type == DOP_SEND_SENDER || type == DOP_SEND_SENDER_TT) + ? (is_pid(tuple[2]) && (dep->flags & DFLAG_SEND_SENDER)) + : tuple[2] == am_Empty); + #ifdef ERTS_DIST_MSG_DBG dist_msg_dbg(&ede, "MSG", buf, orig_len); #endif - if (type != DOP_SEND_TT && tuple_arity != 3) { - goto invalid_message; - } to = tuple[3]; if (is_not_pid(to)) { goto invalid_message; } rp = erts_proc_lookup(to); if (rp) { - Uint xsize = type == DOP_SEND ? 0 : ERTS_HEAP_FRAG_SIZE(token_size); ErtsProcLocks locks = 0; ErtsDistExternal *ede_copy; ede_copy = erts_make_dist_ext_copy(&ede, xsize); - if (type == DOP_SEND) { - token = NIL; - } else { + if (is_not_nil(token)) { ErlHeapFragment *heap_frag; ErlOffHeap *ohp; ASSERT(xsize); @@ -1501,15 +1586,15 @@ int erts_net_message(Port *prt, ERTS_INIT_HEAP_FRAG(heap_frag, token_size, token_size); hp = heap_frag->mem; ohp = &heap_frag->off_heap; - token = tuple[4]; token = copy_struct(token, token_size, &hp, ohp); } - erts_queue_dist_message(rp, locks, ede_copy, token, tuple[2]); + erts_queue_dist_message(rp, locks, ede_copy, token, am_Empty); if (locks) erts_proc_unlock(rp, locks); } break; + } case DOP_MONITOR_P_EXIT: { /* We are monitoring a process on the remote node which dies, we get @@ -1723,7 +1808,7 @@ decode_error: } data_error: UnUseTmpHeapNoproc(DIST_CTL_DEFAULT_SIZE); - erts_deliver_port_exit(prt, dep->cid, am_killed, 0, 1); + erts_kill_dist_connection(dep, connection_id); ERTS_CHK_NO_PROC_LOCKS; return -1; } @@ -1744,6 +1829,31 @@ static int dsig_send_ctl(ErtsDSigData* dsdp, Eterm ctl, int force_busy) return ret; } +static ERTS_INLINE void +notify_dist_data(Process *c_p, Eterm pid) +{ + Process *rp; + ErtsProcLocks rp_locks; + + ASSERT(erts_get_scheduler_data() + && !ERTS_SCHEDULER_IS_DIRTY(erts_get_scheduler_data())); + ASSERT(is_internal_pid(pid)); + + if (c_p && c_p->common.id == pid) { + rp = c_p; + rp_locks = ERTS_PROC_LOCK_MAIN; + } + else { + rp = erts_proc_lookup(pid); + rp_locks = 0; + } + + if (rp) { + ErtsMessage *mp = erts_alloc_message(0, NULL); + erts_queue_message(rp, rp_locks, mp, am_dist_data, am_system); + } +} + int erts_dsig_send(ErtsDSigData *dsdp, struct erts_dsig_send_context* ctx) { @@ -1859,12 +1969,32 @@ erts_dsig_send(ErtsDSigData *dsdp, struct erts_dsig_send_context* ctx) free_dist_obuf(ctx->obuf); } else { + Sint qsize; + erts_aint32_t qflgs; ErtsProcList *plp = NULL; + Eterm notify_proc = NIL; + Sint obsz = size_obuf(ctx->obuf); + erts_mtx_lock(&dep->qlock); - dep->qsize += size_obuf(ctx->obuf); - if (dep->qsize >= erts_dist_buf_busy_limit) - dep->qflgs |= ERTS_DE_QFLG_BUSY; - if (!ctx->force_busy && (dep->qflgs & ERTS_DE_QFLG_BUSY)) { + qsize = erts_atomic_add_read_nob(&dep->qsize, (erts_aint_t) obsz); + ASSERT(qsize >= obsz); + qflgs = erts_atomic32_read_nob(&dep->qflgs); + if (!(qflgs & ERTS_DE_QFLG_BUSY) && qsize >= erts_dist_buf_busy_limit) { + erts_atomic32_read_bor_relb(&dep->qflgs, ERTS_DE_QFLG_BUSY); + qflgs |= ERTS_DE_QFLG_BUSY; + } + if (qsize == obsz && (qflgs & ERTS_DE_QFLG_REQ_INFO)) { + /* Previously empty queue and info requested... */ + qflgs = erts_atomic32_read_band_mb(&dep->qflgs, + ~ERTS_DE_QFLG_REQ_INFO); + if (qflgs & ERTS_DE_QFLG_REQ_INFO) { + notify_proc = dep->cid; + ASSERT(is_internal_pid(notify_proc)); + } + /* else: requester will send itself the message... */ + qflgs &= ~ERTS_DE_QFLG_REQ_INFO; + } + if (!ctx->force_busy && (qflgs & ERTS_DE_QFLG_BUSY)) { erts_mtx_unlock(&dep->qlock); plp = erts_proclist_create(ctx->c_p); @@ -1881,7 +2011,8 @@ erts_dsig_send(ErtsDSigData *dsdp, struct erts_dsig_send_context* ctx) dep->out_queue.last = ctx->obuf; if (!ctx->force_busy) { - if (!(dep->qflgs & ERTS_DE_QFLG_BUSY)) { + qflgs = erts_atomic32_read_nob(&dep->qflgs); + if (!(qflgs & ERTS_DE_QFLG_BUSY)) { if (suspended) resume = 1; /* was busy when we started, but isn't now */ #ifdef USE_VM_PROBES @@ -1906,8 +2037,11 @@ erts_dsig_send(ErtsDSigData *dsdp, struct erts_dsig_send_context* ctx) } erts_mtx_unlock(&dep->qlock); - erts_schedule_dist_command(NULL, dep); + if (is_internal_port(dep->cid)) + erts_schedule_dist_command(NULL, dep); erts_de_runlock(dep); + if (is_internal_pid(notify_proc)) + notify_dist_data(ctx->c_p, notify_proc); if (resume) { erts_resume(ctx->c_p, ERTS_PROC_LOCK_MAIN); @@ -1961,16 +2095,20 @@ static Uint dist_port_command(Port *prt, ErtsDistOutputBuf *obuf) { int fpe_was_unmasked; - Uint size = obuf->ext_endp - obuf->extp; + ErlDrvSizeT size; + char *bufp; ERTS_CHK_NO_PROC_LOCKS; ERTS_LC_ASSERT(erts_lc_is_port_locked(prt)); - if (size > (Uint) INT_MAX) - erts_exit(ERTS_DUMP_EXIT, - "Absurdly large distribution output data buffer " - "(%beu bytes) passed.\n", - size); + if (!obuf) { + size = 0; + bufp = NULL; + } + else { + size = obuf->ext_endp - obuf->extp; + bufp = (char*) obuf->extp; + } #ifdef USE_VM_PROBES if (DTRACE_ENABLED(dist_output)) { @@ -1985,11 +2123,10 @@ dist_port_command(Port *prt, ErtsDistOutputBuf *obuf) remote_str, size); } #endif + prt->caller = NIL; fpe_was_unmasked = erts_block_fpe(); - (*prt->drv_ptr->output)((ErlDrvData) prt->drv_data, - (char*) obuf->extp, - (int) size); + (*prt->drv_ptr->output)((ErlDrvData) prt->drv_data, bufp, size); erts_unblock_fpe(fpe_was_unmasked); return size; } @@ -1998,7 +2135,7 @@ static Uint dist_port_commandv(Port *prt, ErtsDistOutputBuf *obuf) { int fpe_was_unmasked; - Uint size = obuf->ext_endp - obuf->extp; + ErlDrvSizeT size; SysIOVec iov[2]; ErlDrvBinary* bv[2]; ErlIOVec eiov; @@ -2006,25 +2143,33 @@ dist_port_commandv(Port *prt, ErtsDistOutputBuf *obuf) ERTS_CHK_NO_PROC_LOCKS; ERTS_LC_ASSERT(erts_lc_is_port_locked(prt)); - if (size > (Uint) INT_MAX) - erts_exit(ERTS_DUMP_EXIT, - "Absurdly large distribution output data buffer " - "(%beu bytes) passed.\n", - size); - iov[0].iov_base = NULL; iov[0].iov_len = 0; bv[0] = NULL; - iov[1].iov_base = obuf->extp; - iov[1].iov_len = size; - bv[1] = Binary2ErlDrvBinary(ErtsDistOutputBuf2Binary(obuf)); + if (!obuf) { + size = 0; + eiov.vsize = 1; + } + else { + size = obuf->ext_endp - obuf->extp; + eiov.vsize = 2; + + iov[1].iov_base = obuf->extp; + iov[1].iov_len = size; + bv[1] = Binary2ErlDrvBinary(ErtsDistOutputBuf2Binary(obuf)); + } - eiov.vsize = 2; eiov.size = size; eiov.iov = iov; eiov.binv = bv; + if (size > (Uint) INT_MAX) + erts_exit(ERTS_DUMP_EXIT, + "Absurdly large distribution output data buffer " + "(%beu bytes) passed.\n", + size); + ASSERT(prt->drv_ptr->outputv); #ifdef USE_VM_PROBES @@ -2072,7 +2217,7 @@ erts_dist_command(Port *prt, int reds_limit) Sint reds = ERTS_PORT_REDS_DIST_CMD_START; Uint32 status; Uint32 flags; - Sint obufsize = 0; + Sint qsize, obufsize = 0; ErtsDistOutputQueue oq, foq; DistEntry *dep = prt->dist_entry; Uint (*send)(Port *prt, ErtsDistOutputBuf *obuf); @@ -2081,9 +2226,6 @@ erts_dist_command(Port *prt, int reds_limit) ERTS_LC_ASSERT(erts_lc_is_port_locked(prt)); - erts_refc_inc(&dep->refc, 1); /* Otherwise dist_entry might be - removed if port command fails */ - erts_atomic_set_mb(&dep->dist_cmd_scheduled, 0); erts_de_rlock(dep); @@ -2094,7 +2236,6 @@ erts_dist_command(Port *prt, int reds_limit) if (status & ERTS_DE_SFLG_EXITING) { erts_deliver_port_exit(prt, prt->common.id, am_killed, 0, 1); - erts_deref_dist_entry(dep); return reds + ERTS_PORT_REDS_DIST_CMD_EXIT; } @@ -2128,20 +2269,20 @@ erts_dist_command(Port *prt, int reds_limit) if (!(sched_flags & ERTS_PTS_FLG_BUSY_PORT) && foq.first) { int preempt = 0; do { - Uint size; - ErtsDistOutputBuf *fob; - - size = (*send)(prt, foq.first); - esdp->io.out += (Uint64) size; + Uint size; + ErtsDistOutputBuf *fob; + size = (*send)(prt, foq.first); + erts_atomic64_inc_nob(&dep->out); + esdp->io.out += (Uint64) size; #ifdef ERTS_RAW_DIST_MSG_DBG - erts_fprintf(stderr, ">> "); - bw(foq.first->extp, size); + erts_fprintf(stderr, ">> "); + bw(foq.first->extp, size); #endif - reds += ERTS_PORT_REDS_DIST_CMD_DATA(size); - fob = foq.first; - obufsize += size_obuf(fob); - foq.first = foq.first->next; - free_dist_obuf(fob); + reds += ERTS_PORT_REDS_DIST_CMD_DATA(size); + fob = foq.first; + obufsize += size_obuf(fob); + foq.first = foq.first->next; + free_dist_obuf(fob); sched_flags = erts_atomic32_read_nob(&prt->sched.flags); preempt = reds > reds_limit || (sched_flags & ERTS_PTS_FLG_EXIT); if (sched_flags & ERTS_PTS_FLG_BUSY_PORT) @@ -2202,31 +2343,33 @@ erts_dist_command(Port *prt, int reds_limit) } } else { + int de_busy; int preempt = 0; while (oq.first && !preempt) { - ErtsDistOutputBuf *fob; - Uint size; - oq.first->extp - = erts_encode_ext_dist_header_finalize(oq.first->extp, - 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' - needed */ - ASSERT(&oq.first->data[0] <= oq.first->extp - && oq.first->extp < oq.first->ext_endp); - size = (*send)(prt, oq.first); - esdp->io.out += (Uint64) size; + ErtsDistOutputBuf *fob; + Uint size; + oq.first->extp + = erts_encode_ext_dist_header_finalize(oq.first->extp, + 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' + needed */ + ASSERT(&oq.first->data[0] <= oq.first->extp + && oq.first->extp < oq.first->ext_endp); + size = (*send)(prt, oq.first); + erts_atomic64_inc_nob(&dep->out); + esdp->io.out += (Uint64) size; #ifdef ERTS_RAW_DIST_MSG_DBG - erts_fprintf(stderr, ">> "); - bw(oq.first->extp, size); + erts_fprintf(stderr, ">> "); + bw(oq.first->extp, size); #endif - reds += ERTS_PORT_REDS_DIST_CMD_DATA(size); - fob = oq.first; - obufsize += size_obuf(fob); - oq.first = oq.first->next; - free_dist_obuf(fob); + reds += ERTS_PORT_REDS_DIST_CMD_DATA(size); + fob = oq.first; + obufsize += size_obuf(fob); + oq.first = oq.first->next; + free_dist_obuf(fob); sched_flags = erts_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) @@ -2255,12 +2398,13 @@ erts_dist_command(Port *prt, int reds_limit) * processes. */ erts_mtx_lock(&dep->qlock); - ASSERT(dep->qsize >= obufsize); - dep->qsize -= obufsize; + de_busy = !!(erts_atomic32_read_nob(&dep->qflgs) & ERTS_DE_QFLG_BUSY); + qsize = (Sint) erts_atomic_add_read_nob(&dep->qsize, + (erts_aint_t) -obufsize); + ASSERT(qsize >= 0); obufsize = 0; if (!(sched_flags & ERTS_PTS_FLG_BUSY_PORT) - && (dep->qflgs & ERTS_DE_QFLG_BUSY) - && dep->qsize < erts_dist_buf_busy_limit) { + && de_busy && qsize < erts_dist_buf_busy_limit) { ErtsProcList *suspendees; int resumed; suspendees = get_suspended_on_de(dep, ERTS_DE_QFLG_BUSY); @@ -2280,8 +2424,13 @@ erts_dist_command(Port *prt, int reds_limit) if (obufsize != 0) { ASSERT(obufsize > 0); erts_mtx_lock(&dep->qlock); - ASSERT(dep->qsize >= obufsize); - dep->qsize -= obufsize; +#ifdef DEBUG + qsize = (Sint) erts_atomic_add_read_nob(&dep->qsize, + (erts_aint_t) -obufsize); + ASSERT(qsize >= 0); +#else + erts_atomic_add_nob(&dep->qsize, (erts_aint_t) -obufsize); +#endif erts_mtx_unlock(&dep->qlock); } @@ -2299,8 +2448,6 @@ erts_dist_command(Port *prt, int reds_limit) if (reds > INT_MAX/2) reds = INT_MAX/2; - erts_deref_dist_entry(dep); - return reds; preempted: @@ -2337,7 +2484,7 @@ erts_dist_command(Port *prt, int reds_limit) #ifdef DEBUG erts_mtx_lock(&dep->qlock); - ASSERT(dep->qsize == obufsize); + ASSERT(erts_atomic_read_nob(&dep->qsize) == obufsize); erts_mtx_unlock(&dep->qlock); #endif } @@ -2348,7 +2495,7 @@ erts_dist_command(Port *prt, int reds_limit) * in out_queue. */ erts_mtx_lock(&dep->qlock); - dep->qsize -= obufsize; + erts_atomic_add_nob(&dep->qsize, -obufsize); obufsize = 0; oq.last->next = dep->out_queue.first; dep->out_queue.first = oq.first; @@ -2362,6 +2509,370 @@ erts_dist_command(Port *prt, int reds_limit) goto done; } +#if 0 + +int +dist_data_finalize(Process *c_p, int reds_limit) +{ + int reds = 5; + DistEntry *dep = ; + ErtsDistOutputQueue oq, foq; + ErtsDistOutputBuf *ob; + int preempt; + + + erts_mtx_lock(&dep->qlock); + flags = dep->flags; + oq.first = dep->out_queue.first; + oq.last = dep->out_queue.last; + dep->out_queue.first = NULL; + dep->out_queue.last = NULL; + erts_mtx_unlock(&dep->qlock); + + if (!oq.first) { + ASSERT(!oq.last); + oq.first = dep->tmp_out_queue.first; + oq.last = dep->tmp_out_queue.last; + } + else { + ErtsDistOutputBuf *f, *l; + ASSERT(oq.last); + if (dep->tmp_out_queue.last) { + dep->tmp_out_queue.last->next = oq.first; + oq.first = dep->tmp_out_queue.first; + } + } + + if (!oq.first) { + /* Nothing to do... */ + ASSERT(!oq.last); + return reds; + } + + foq.first = dep->finalized_out_queue.first; + foq.last = dep->finalized_out_queue.last; + + preempt = 0; + ob = oq.first; + ASSERT(ob); + + do { + ob->extp = erts_encode_ext_dist_header_finalize(ob->extp, + dep->cache, + flags); + if (!(flags & DFLAG_DIST_HDR_ATOM_CACHE)) + *--ob->extp = PASS_THROUGH; /* Old node; 'pass through' + needed */ + ASSERT(&ob->data[0] <= ob->extp && ob->extp < ob->ext_endp); + reds += ERTS_PORT_REDS_DIST_CMD_FINALIZE; + preempt = reds > reds_limit; + if (preempt) + break; + ob = ob->next; + } while (ob); + /* + * At least one buffer was finalized; if we got preempted, + * ob points to the last buffer that we finalized. + */ + if (foq.last) + foq.last->next = oq.first; + else + foq.first = oq.first; + if (!preempt) { + /* All buffers finalized */ + foq.last = oq.last; + oq.first = oq.last = NULL; + } + else { + /* Not all buffers finalized; split oq. */ + foq.last = ob; + oq.first = ob->next; + if (oq.first) + ob->next = NULL; + else + oq.last = NULL; + } + + dep->finalized_out_queue.first = foq.first; + dep->finalized_out_queue.last = foq.last; + dep->tmp_out_queue.first = oq.first; + dep->tmp_out_queue.last = oq.last; + + return reds; +} + +#endif + +BIF_RETTYPE +dist_ctrl_get_data_notification_1(BIF_ALIST_1) +{ + DistEntry *dep = ERTS_PROC_GET_DIST_ENTRY(BIF_P); + erts_aint32_t qflgs; + erts_aint_t qsize; + Eterm receiver = NIL; + + if (!dep) + BIF_ERROR(BIF_P, EXC_NOTSUP); + + if (erts_dhandle_to_dist_entry(BIF_ARG_1) != dep) + BIF_ERROR(BIF_P, BADARG); + + /* + * Caller is the only one that can consume from this queue + * and the only one that can set the req-info flag... + */ + + erts_de_rlock(dep); + + ASSERT(dep->cid == BIF_P->common.id); + + qflgs = erts_atomic32_read_acqb(&dep->qflgs); + + if (!(qflgs & ERTS_DE_QFLG_REQ_INFO)) { + qsize = erts_atomic_read_acqb(&dep->qsize); + ASSERT(qsize >= 0); + if (qsize > 0) + receiver = BIF_P->common.id; /* Notify ourselves... */ + else { /* Empty queue; set req-info flag... */ + qflgs = erts_atomic32_read_bor_mb(&dep->qflgs, + ERTS_DE_QFLG_REQ_INFO); + qsize = erts_atomic_read_acqb(&dep->qsize); + ASSERT(qsize >= 0); + if (qsize > 0) { + qflgs = erts_atomic32_read_band_mb(&dep->qflgs, + ~ERTS_DE_QFLG_REQ_INFO); + if (qflgs & ERTS_DE_QFLG_REQ_INFO) + receiver = BIF_P->common.id; /* Notify ourselves... */ + /* else: someone else will notify us... */ + } + /* else: still empty queue... */ + } + } + /* else: Already requested... */ + + erts_de_runlock(dep); + + if (is_internal_pid(receiver)) + notify_dist_data(BIF_P, receiver); + + BIF_RET(am_ok); +} + +BIF_RETTYPE +dist_ctrl_put_data_2(BIF_ALIST_2) +{ + DistEntry *dep; + ErlDrvSizeT size; + Eterm input_handler; + + if (is_binary(BIF_ARG_2)) + size = binary_size(BIF_ARG_2); + else if (is_nil(BIF_ARG_2)) + size = 0; + else if (is_list(BIF_ARG_2)) + BIF_TRAP2(dist_ctrl_put_data_trap, + BIF_P, BIF_ARG_1, BIF_ARG_2); + else + BIF_ERROR(BIF_P, BADARG); + + dep = erts_dhandle_to_dist_entry(BIF_ARG_1); + if (!dep) + BIF_ERROR(BIF_P, BADARG); + + input_handler = (Eterm) erts_atomic_read_nob(&dep->input_handler); + + if (input_handler != BIF_P->common.id) + BIF_ERROR(BIF_P, EXC_NOTSUP); + + erts_atomic64_inc_nob(&dep->in); + + if (size != 0) { + byte *data, *temp_alloc = NULL; + + data = (byte *) erts_get_aligned_binary_bytes(BIF_ARG_2, &temp_alloc); + if (!data) + BIF_ERROR(BIF_P, BADARG); + + erts_proc_unlock(BIF_P, ERTS_PROC_LOCK_MAIN); + + (void) erts_net_message(NULL, dep, NULL, 0, data, size); + /* + * We ignore any decode failures. On fatal failures the + * connection will be taken down by killing the + * distribution channel controller... + */ + + erts_proc_lock(BIF_P, ERTS_PROC_LOCK_MAIN); + + BUMP_REDS(BIF_P, 5); + + erts_free_aligned_binary_bytes(temp_alloc); + + } + + BIF_RET(am_ok); +} + +BIF_RETTYPE +dist_get_stat_1(BIF_ALIST_1) +{ + Sint64 read, write, pend; + Eterm res, *hp, **hpp; + Uint sz, *szp; + DistEntry *dep = erts_dhandle_to_dist_entry(BIF_ARG_1); + + if (!dep) + BIF_ERROR(BIF_P, BADARG); + + erts_de_rlock(dep); + + read = (Sint64) erts_atomic64_read_nob(&dep->in); + write = (Sint64) erts_atomic64_read_nob(&dep->out); + pend = (Sint64) erts_atomic_read_nob(&dep->qsize); + + erts_de_runlock(dep); + + sz = 0; + szp = &sz; + hpp = NULL; + + while (1) { + res = erts_bld_tuple(hpp, szp, 4, + am_ok, + erts_bld_sint64(hpp, szp, read), + erts_bld_sint64(hpp, szp, write), + pend ? am_true : am_false); + if (hpp) + break; + hp = HAlloc(BIF_P, sz); + hpp = &hp; + szp = NULL; + } + + BIF_RET(res); +} + +BIF_RETTYPE +dist_ctrl_input_handler_2(BIF_ALIST_2) +{ + DistEntry *dep = ERTS_PROC_GET_DIST_ENTRY(BIF_P); + + if (!dep) + BIF_ERROR(BIF_P, EXC_NOTSUP); + + if (erts_dhandle_to_dist_entry(BIF_ARG_1) != dep) + BIF_ERROR(BIF_P, BADARG); + + if (is_not_internal_pid(BIF_ARG_2)) + BIF_ERROR(BIF_P, BADARG); + + erts_atomic_set_nob(&dep->input_handler, + (erts_aint_t) BIF_ARG_2); + + BIF_RET(am_ok); +} + +BIF_RETTYPE +dist_ctrl_get_data_1(BIF_ALIST_1) +{ + DistEntry *dep = ERTS_PROC_GET_DIST_ENTRY(BIF_P); + int reds = 1; + ErtsDistOutputBuf *obuf; + Eterm *hp; + ProcBin *pb; + erts_aint_t qsize; + + if (!dep) + BIF_ERROR(BIF_P, EXC_NOTSUP); + + if (erts_dhandle_to_dist_entry(BIF_ARG_1) != dep) + BIF_ERROR(BIF_P, BADARG); + + erts_de_rlock(dep); + + if (dep->status & ERTS_DE_SFLG_EXITING) + goto return_none; + + ASSERT(dep->cid == BIF_P->common.id); + +#if 0 + if (dep->finalized_out_queue.first) { + obuf = dep->finalized_out_queue.first; + dep->finalized_out_queue.first = obuf->next; + if (!obuf->next) + dep->finalized_out_queue.last = NULL; + } + else +#endif + { + if (!dep->tmp_out_queue.first) { + ASSERT(!dep->tmp_out_queue.last); + qsize = erts_atomic_read_acqb(&dep->qsize); + if (qsize > 0) { + erts_mtx_lock(&dep->qlock); + dep->tmp_out_queue.first = dep->out_queue.first; + dep->tmp_out_queue.last = dep->out_queue.last; + dep->out_queue.first = NULL; + dep->out_queue.last = NULL; + erts_mtx_unlock(&dep->qlock); + } + } + + if (!dep->tmp_out_queue.first) { + ASSERT(!dep->tmp_out_queue.last); + return_none: + erts_de_runlock(dep); + BIF_RET(am_none); + } + else { + obuf = dep->tmp_out_queue.first; + dep->tmp_out_queue.first = obuf->next; + if (!obuf->next) + dep->tmp_out_queue.last = NULL; + } + + obuf->extp = erts_encode_ext_dist_header_finalize(obuf->extp, + dep->cache, + dep->flags); + reds += ERTS_PORT_REDS_DIST_CMD_FINALIZE; + if (!(dep->flags & DFLAG_DIST_HDR_ATOM_CACHE)) + *--obuf->extp = PASS_THROUGH; /* 'pass through' needed */ + ASSERT(&obuf->data[0] <= obuf->extp + && obuf->extp < obuf->ext_endp); + } + + erts_atomic64_inc_nob(&dep->out); + + erts_de_runlock(dep); + + hp = HAlloc(BIF_P, PROC_BIN_SIZE); + pb = (ProcBin *) (char *) hp; + pb->thing_word = HEADER_PROC_BIN; + pb->size = obuf->ext_endp - obuf->extp; + pb->next = MSO(BIF_P).first; + MSO(BIF_P).first = (struct erl_off_heap_header*) pb; + pb->val = ErtsDistOutputBuf2Binary(obuf); + pb->bytes = (byte*) obuf->extp; + pb->flags = 0; + + qsize = erts_atomic_add_read_nob(&dep->qsize, -size_obuf(obuf)); + ASSERT(qsize >= 0); + + if (qsize < erts_dist_buf_busy_limit/2 + && (erts_atomic32_read_acqb(&dep->qflgs) & ERTS_DE_QFLG_BUSY)) { + ErtsProcList *resume_procs = NULL; + erts_mtx_lock(&dep->qlock); + resume_procs = get_suspended_on_de(dep, ERTS_DE_QFLG_BUSY); + erts_mtx_unlock(&dep->qlock); + if (resume_procs) { + int resumed = erts_resume_processes(resume_procs); + reds += resumed*ERTS_PORT_REDS_DIST_CMD_RESUMED; + } + } + + BIF_RET2(make_binary(pb), reds); +} + void erts_dist_port_not_busy(Port *prt) { @@ -2385,18 +2896,20 @@ void erts_kill_dist_connection(DistEntry *dep, Uint32 connection_id) { erts_de_rwlock(dep); - if (is_internal_port(dep->cid) - && connection_id == dep->connection_id + if (connection_id == dep->connection_id && !(dep->status & ERTS_DE_SFLG_EXITING)) { dep->status |= ERTS_DE_SFLG_EXITING; erts_mtx_lock(&dep->qlock); - ASSERT(!(dep->qflgs & ERTS_DE_QFLG_EXIT)); - dep->qflgs |= ERTS_DE_QFLG_EXIT; + ASSERT(!(erts_atomic32_read_nob(&dep->qflgs) & ERTS_DE_QFLG_EXIT)); + erts_atomic32_read_bor_nob(&dep->qflgs, ERTS_DE_QFLG_EXIT); erts_mtx_unlock(&dep->qlock); - erts_schedule_dist_command(NULL, dep); + if (is_internal_port(dep->cid)) + erts_schedule_dist_command(NULL, dep); + else if (is_internal_pid(dep->cid)) + schedule_kill_dist_ctrl_proc(dep->cid); } erts_de_rwunlock(dep); } @@ -2513,9 +3026,6 @@ info_dist_entry(fmtfn_t to, void *arg, DistEntry *dep, int visible, int connecte } erts_print(to, arg, "Name: %T", dep->sysname); -#ifdef DEBUG - erts_print(to, arg, " (refc=%d)", erts_refc_read(&dep->refc, 0)); -#endif erts_print(to, arg, "\n"); if (!connected && is_nil(dep->cid)) { if (dep->nlinks) { @@ -2635,17 +3145,23 @@ BIF_RETTYPE setnode_2(BIF_ALIST_2) goto error; } - net_kernel = erts_whereis_process(BIF_P, ERTS_PROC_LOCK_MAIN, - am_net_kernel, ERTS_PROC_LOCK_MAIN, 0); - if (!net_kernel) + net_kernel = erts_whereis_process(BIF_P, + ERTS_PROC_LOCK_MAIN, + am_net_kernel, + ERTS_PROC_LOCK_MAIN|ERTS_PROC_LOCK_STATUS, + 0); + if (!net_kernel || ERTS_PROC_GET_DIST_ENTRY(net_kernel)) goto error; /* By setting F_DISTRIBUTION on net_kernel, - * do_net_exist will be called when net_kernel is terminated !! */ + * erts_do_net_exits will be called when net_kernel is terminated !! */ net_kernel->flags |= F_DISTRIBUTION; - if (net_kernel != BIF_P) - erts_proc_unlock(net_kernel, ERTS_PROC_LOCK_MAIN); + erts_proc_unlock(net_kernel, + (ERTS_PROC_LOCK_STATUS + | ((net_kernel != BIF_P) + ? ERTS_PROC_LOCK_MAIN + : 0))); #ifdef DEBUG erts_rwmtx_rlock(&erts_dist_table_rwmtx); @@ -2662,6 +3178,14 @@ BIF_RETTYPE setnode_2(BIF_ALIST_2) erts_thr_progress_unblock(); erts_proc_lock(BIF_P, ERTS_PROC_LOCK_MAIN); + /* + * Note erts_this_dist_entry is changed by erts_set_this_node(), + * so we *need* to use the new one after erts_set_this_node() + * is called. + */ + erts_ref_dist_entry(erts_this_dist_entry); + ERTS_PROC_SET_DIST_ENTRY(net_kernel, erts_this_dist_entry); + BIF_RET(am_true); error: @@ -2691,18 +3215,18 @@ BIF_RETTYPE setnode_3(BIF_ALIST_3) Eterm ic, oc; Eterm *tp; DistEntry *dep = NULL; + ErtsProcLocks proc_unlock = 0; + Process *proc; Port *pp = NULL; - /* Prepare for success */ - ERTS_BIF_PREP_RET(ret, am_true); - /* * Check and pick out arguments */ if (!is_node_name_atom(BIF_ARG_1) || - is_not_internal_port(BIF_ARG_2) || - (erts_this_node->sysname == am_Noname)) { + !(is_internal_port(BIF_ARG_2) + || is_internal_pid(BIF_ARG_2)) + || (erts_this_node->sysname == am_Noname)) { goto badarg; } @@ -2746,77 +3270,124 @@ BIF_RETTYPE setnode_3(BIF_ALIST_3) else if (!dep) goto system_limit; /* Should never happen!!! */ - pp = erts_id2port_sflgs(BIF_ARG_2, - BIF_P, - ERTS_PROC_LOCK_MAIN, - ERTS_PORT_SFLGS_INVALID_LOOKUP); - erts_de_rwlock(dep); + if (is_internal_pid(BIF_ARG_2)) { + if (BIF_P->common.id == BIF_ARG_2) { + proc_unlock = 0; + proc = BIF_P; + } + else { + proc_unlock = ERTS_PROC_LOCK_MAIN; + proc = erts_pid2proc_not_running(BIF_P, ERTS_PROC_LOCK_MAIN, + BIF_ARG_2, proc_unlock); + } + erts_de_rwlock(dep); - if (!pp || (erts_atomic32_read_nob(&pp->state) - & ERTS_PORT_SFLG_EXITING)) - goto badarg; + if (!proc) + goto badarg; + else if (proc == ERTS_PROC_LOCK_BUSY) { + proc_unlock = 0; + goto yield; + } - if ((pp->drv_ptr->flags & ERL_DRV_FLAG_SOFT_BUSY) == 0) - goto badarg; + erts_proc_lock(proc, ERTS_PROC_LOCK_STATUS); + proc_unlock |= ERTS_PROC_LOCK_STATUS; + + if (ERTS_PROC_GET_DIST_ENTRY(proc)) { + if (dep == ERTS_PROC_GET_DIST_ENTRY(proc) + && (proc->flags & F_DISTRIBUTION) + && dep->cid == BIF_ARG_2) { + ERTS_BIF_PREP_RET(ret, erts_make_dhandle(BIF_P, dep)); + goto done; + } + goto badarg; + } - if (dep->cid == BIF_ARG_2 && pp->dist_entry == dep) - goto done; /* Already set */ + if (is_not_nil(dep->cid)) + goto badarg; + + proc->flags |= F_DISTRIBUTION; + ERTS_PROC_SET_DIST_ENTRY(proc, dep); + + proc_unlock &= ~ERTS_PROC_LOCK_STATUS; + erts_proc_unlock(proc, ERTS_PROC_LOCK_STATUS); + + dep->send = NULL; /* Only for distr ports... */ - if (dep->status & ERTS_DE_SFLG_EXITING) { - /* Suspend on dist entry waiting for the exit to finish */ - ErtsProcList *plp = erts_proclist_create(BIF_P); - plp->next = NULL; - erts_suspend(BIF_P, ERTS_PROC_LOCK_MAIN, NULL); - erts_mtx_lock(&dep->qlock); - erts_proclist_store_last(&dep->suspended, plp); - erts_mtx_unlock(&dep->qlock); - goto yield; } + else { - ASSERT(!(dep->status & ERTS_DE_SFLG_EXITING)); + pp = erts_id2port_sflgs(BIF_ARG_2, + BIF_P, + ERTS_PROC_LOCK_MAIN, + ERTS_PORT_SFLGS_INVALID_LOOKUP); + erts_de_rwlock(dep); - if (pp->dist_entry || is_not_nil(dep->cid)) - goto badarg; + if (!pp || (erts_atomic32_read_nob(&pp->state) + & ERTS_PORT_SFLG_EXITING)) + goto badarg; - erts_atomic32_read_bor_nob(&pp->state, ERTS_PORT_SFLG_DISTRIBUTION); + if ((pp->drv_ptr->flags & ERL_DRV_FLAG_SOFT_BUSY) == 0) + goto badarg; - /* - * 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); - } + if (dep->cid == BIF_ARG_2 && pp->dist_entry == dep) { + ERTS_BIF_PREP_RET(ret, erts_make_dhandle(BIF_P, dep)); + goto done; /* Already set */ + } - pp->dist_entry = dep; + if (dep->status & ERTS_DE_SFLG_EXITING) { + /* Suspend on dist entry waiting for the exit to finish */ + ErtsProcList *plp = erts_proclist_create(BIF_P); + plp->next = NULL; + erts_suspend(BIF_P, ERTS_PROC_LOCK_MAIN, NULL); + erts_mtx_lock(&dep->qlock); + erts_proclist_store_last(&dep->suspended, plp); + erts_mtx_unlock(&dep->qlock); + goto yield; + } - dep->version = version; - dep->creation = 0; + ASSERT(!(dep->status & ERTS_DE_SFLG_EXITING)); - ASSERT(pp->drv_ptr->outputv || pp->drv_ptr->output); + if (pp->dist_entry || is_not_nil(dep->cid)) + goto badarg; -#if 1 - dep->send = (pp->drv_ptr->outputv - ? dist_port_commandv - : dist_port_command); -#else - dep->send = dist_port_command; -#endif - ASSERT(dep->send); + erts_atomic32_read_bor_nob(&pp->state, ERTS_PORT_SFLG_DISTRIBUTION); + + pp->dist_entry = dep; + + ASSERT(pp->drv_ptr->outputv || pp->drv_ptr->output); + + dep->send = (pp->drv_ptr->outputv + ? dist_port_commandv + : dist_port_command); + ASSERT(dep->send); + + /* + * 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); + } + + } + + dep->version = version; + dep->creation = 0; #ifdef DEBUG - erts_mtx_lock(&dep->qlock); - ASSERT(dep->qsize == 0); - erts_mtx_unlock(&dep->qlock); + ASSERT(erts_atomic_read_nob(&dep->qsize) == 0); #endif - erts_set_dist_entry_connected(dep, BIF_ARG_2, flags); - if (flags & DFLAG_DIST_HDR_ATOM_CACHE) create_cache(dep); + erts_set_dist_entry_connected(dep, BIF_ARG_2, flags); + erts_de_rwunlock(dep); + + ERTS_BIF_PREP_RET(ret, erts_make_dhandle(BIF_P, dep)); + dep = NULL; /* inc of refc transferred to port (dist_entry field) */ inc_no_nodes(); @@ -2836,6 +3407,9 @@ BIF_RETTYPE setnode_3(BIF_ALIST_3) if (pp) erts_port_release(pp); + if (proc_unlock) + erts_proc_unlock(proc, proc_unlock); + return ret; yield: @@ -3138,7 +3712,6 @@ monitor_node(Process* p, Eterm Node, Eterm Bool, Eterm Options) erts_proc_unlock(p, ERTS_PROC_LOCK_LINK); done: - erts_deref_dist_entry(dep); BIF_RET(am_true); } diff --git a/erts/emulator/beam/dist.h b/erts/emulator/beam/dist.h index 05016cafc5..d4765c50b8 100644 --- a/erts/emulator/beam/dist.h +++ b/erts/emulator/beam/dist.h @@ -44,6 +44,7 @@ #define DFLAG_UTF8_ATOMS 0x10000 #define DFLAG_MAP_TAG 0x20000 #define DFLAG_BIG_CREATION 0x40000 +#define DFLAG_SEND_SENDER 0x80000 /* All flags that should be enabled when term_to_binary/1 is used. */ #define TERM_TO_BINARY_DFLAGS (DFLAG_EXTENDED_REFERENCES \ @@ -74,6 +75,9 @@ #define DOP_DEMONITOR_P 20 #define DOP_MONITOR_P_EXIT 21 +#define DOP_SEND_SENDER 22 +#define DOP_SEND_SENDER_TT 23 + /* distribution trap functions */ extern Export* dsend2_trap; extern Export* dsend3_trap; @@ -161,13 +165,10 @@ erts_dsig_prepare(ErtsDSigData *dsdp, goto fail; } if (no_suspend) { - failure = ERTS_DSIG_PREP_CONNECTED; - erts_mtx_lock(&dep->qlock); - if (dep->qflgs & ERTS_DE_QFLG_BUSY) + if (erts_atomic32_read_acqb(&dep->qflgs) & ERTS_DE_QFLG_BUSY) { failure = ERTS_DSIG_PREP_WOULD_SUSPEND; - erts_mtx_unlock(&dep->qlock); - if (failure == ERTS_DSIG_PREP_WOULD_SUSPEND) goto fail; + } } dsdp->proc = proc; dsdp->dep = dep; @@ -349,6 +350,7 @@ typedef struct { Eterm ctl_heap[6]; ErtsDSigData dsd; DistEntry* dep_to_deref; + DistEntry *dep; struct erts_dsig_send_context dss; Eterm return_term; diff --git a/erts/emulator/beam/erl_alloc_util.h b/erts/emulator/beam/erl_alloc_util.h index 30d7baf769..faeb5ef368 100644 --- a/erts/emulator/beam/erl_alloc_util.h +++ b/erts/emulator/beam/erl_alloc_util.h @@ -230,10 +230,6 @@ void erts_lcnt_update_allocator_locks(int enable); # endif #endif -#undef MIN -#undef MAX -#define MIN(X, Y) ((X) < (Y) ? (X) : (Y)) -#define MAX(X, Y) ((X) > (Y) ? (X) : (Y)) #define FLOOR(X, I) (((X)/(I))*(I)) #define CEILING(X, I) ((((X) - 1)/(I) + 1)*(I)) diff --git a/erts/emulator/beam/erl_bif_binary.c b/erts/emulator/beam/erl_bif_binary.c index 756c7dce05..dcffde5777 100644 --- a/erts/emulator/beam/erl_bif_binary.c +++ b/erts/emulator/beam/erl_bif_binary.c @@ -229,13 +229,6 @@ static void dump_ac_node(ACNode *node, int indent, int ch); MYALIGN(sizeof(ACTrie))) /* Structure */ -#ifndef MAX -#define MAX(A,B) (((A) > (B)) ? (A) : (B)) -#endif - -#ifndef MIN -#define MIN(A,B) (((A) > (B)) ? (B) : (A)) -#endif /* * Callback for the magic binary */ diff --git a/erts/emulator/beam/erl_bif_info.c b/erts/emulator/beam/erl_bif_info.c index 2ff95a3338..93f5f9ec11 100644 --- a/erts/emulator/beam/erl_bif_info.c +++ b/erts/emulator/beam/erl_bif_info.c @@ -48,6 +48,7 @@ #include "erl_map.h" #define ERTS_PTAB_WANT_DEBUG_FUNCS__ #include "erl_ptab.h" +#include "erl_time.h" #ifdef HIPE #include "hipe_arch.h" #endif @@ -3467,7 +3468,7 @@ BIF_RETTYPE statistics_1(BIF_ALIST_1) ErtsMonotonicTime u1, u2; Eterm b1, b2; Uint hsz; - elapsed_time_both(&u1, NULL, &u2, NULL); + erts_runtime_elapsed_both(&u1, NULL, &u2, NULL); hsz = 3; /* 2-tuple */ (void) erts_bld_monotonic_time(NULL, &hsz, u1); (void) erts_bld_monotonic_time(NULL, &hsz, u2); @@ -3483,7 +3484,7 @@ BIF_RETTYPE statistics_1(BIF_ALIST_1) ErtsMonotonicTime w1, w2; Eterm b1, b2; Uint hsz; - wall_clock_elapsed_time_both(&w1, &w2); + erts_wall_clock_elapsed_both(&w1, &w2); hsz = 3; /* 2-tuple */ (void) erts_bld_monotonic_time(NULL, &hsz, w1); (void) erts_bld_monotonic_time(NULL, &hsz, w2); @@ -3750,7 +3751,6 @@ BIF_RETTYPE erts_debug_get_internal_state_1(BIF_ALIST_1) subres = make_link_list(BIF_P, dep->nlinks, NIL); subres = make_link_list(BIF_P, dep->node_links, subres); erts_de_links_unlock(dep); - erts_deref_dist_entry(dep); BIF_RET(subres); } else { BIF_RET(am_undefined); @@ -3781,7 +3781,6 @@ BIF_RETTYPE erts_debug_get_internal_state_1(BIF_ALIST_1) erts_de_links_lock(dep); ml = make_monitor_list(BIF_P, dep->monitors); erts_de_links_unlock(dep); - erts_deref_dist_entry(dep); BIF_RET(ml); } else { BIF_RET(am_undefined); @@ -3796,7 +3795,6 @@ BIF_RETTYPE erts_debug_get_internal_state_1(BIF_ALIST_1) else { Uint cno = dist_entry_channel_no(dep); res = make_small(cno); - erts_deref_dist_entry(dep); } BIF_RET(res); } @@ -3858,15 +3856,14 @@ BIF_RETTYPE erts_debug_get_internal_state_1(BIF_ALIST_1) DFLAG_BIT_BINARIES); BIF_RET(erts_term_to_binary(BIF_P, tp[2], 0, dflags)); } - else if (ERTS_IS_ATOM_STR("dist_port", tp[1])) { + else if (ERTS_IS_ATOM_STR("dist_ctrl", tp[1])) { Eterm res = am_undefined; DistEntry *dep = erts_sysname_to_connected_dist_entry(tp[2]); if (dep) { erts_de_rlock(dep); - if (is_internal_port(dep->cid)) + if (is_internal_port(dep->cid) || is_internal_pid(dep->cid)) res = dep->cid; erts_de_runlock(dep); - erts_deref_dist_entry(dep); } BIF_RET(res); } @@ -4275,7 +4272,6 @@ BIF_RETTYPE erts_debug_set_internal_state_2(BIF_ALIST_2) con_id = dep->connection_id; erts_de_runlock(dep); erts_kill_dist_connection(dep, con_id); - erts_deref_dist_entry(dep); BIF_RET(am_true); } } diff --git a/erts/emulator/beam/erl_bits.c b/erts/emulator/beam/erl_bits.c index 637c7467b2..3a16913473 100644 --- a/erts/emulator/beam/erl_bits.c +++ b/erts/emulator/beam/erl_bits.c @@ -32,15 +32,6 @@ #include "erl_bits.h" #include "erl_binary.h" -#ifdef MAX -#undef MAX -#endif -#define MAX(x,y) (((x)>(y))?(x):(y)) -#ifdef MIN -#undef MIN -#endif -#define MIN(x,y) (((x)<(y))?(x):(y)) - #if defined(WORDS_BIGENDIAN) # define BIT_ENDIAN_MACHINE 0 #else diff --git a/erts/emulator/beam/erl_db_hash.c b/erts/emulator/beam/erl_db_hash.c index 25072ede97..5d49b2ea14 100644 --- a/erts/emulator/beam/erl_db_hash.c +++ b/erts/emulator/beam/erl_db_hash.c @@ -269,9 +269,6 @@ static ERTS_INLINE Sint next_slot_w(DbTableHash* tb, Uint ix, return ix; } -#ifndef MIN -#define MIN(X, Y) ((X) < (Y) ? (X) : (Y)) -#endif /* * Some special binary flags diff --git a/erts/emulator/beam/erl_db_tree.c b/erts/emulator/beam/erl_db_tree.c index 038f6602bf..5a276b9d88 100644 --- a/erts/emulator/beam/erl_db_tree.c +++ b/erts/emulator/beam/erl_db_tree.c @@ -85,9 +85,6 @@ #define EMPTY_NODE(Dtt) (TOP_NODE(Dtt) == NULL) -#ifndef MIN -#define MIN(X, Y) ((X) < (Y) ? (X) : (Y)) -#endif /* Obtain table static stack if available. NULL if not. ** Must be released with release_stack() diff --git a/erts/emulator/beam/erl_driver.h b/erts/emulator/beam/erl_driver.h index 0e8ebf0c98..5ad616fec3 100644 --- a/erts/emulator/beam/erl_driver.h +++ b/erts/emulator/beam/erl_driver.h @@ -40,7 +40,6 @@ #include "erl_drv_nif.h" #include <stdlib.h> -#include <sys/types.h> /* ssize_t */ #if defined(__WIN32__) || defined(_WIN32) || defined(_WIN32_) #ifndef STATIC_ERLANG_DRIVER @@ -48,24 +47,6 @@ #define ERL_DRIVER_TYPES_ONLY #define WIN32_DYNAMIC_ERL_DRIVER #endif -/* - * This structure can be cast to a WSABUF structure. - */ -typedef struct _SysIOVec { - unsigned long iov_len; - char* iov_base; -} SysIOVec; -#else /* Unix */ -# ifdef HAVE_SYS_UIO_H -# include <sys/types.h> -# include <sys/uio.h> -typedef struct iovec SysIOVec; -# else -typedef struct { - char* iov_base; - size_t iov_len; -} SysIOVec; -# endif #endif #ifndef EXTERN diff --git a/erts/emulator/beam/erl_drv_nif.h b/erts/emulator/beam/erl_drv_nif.h index f88138063e..31b4817fb1 100644 --- a/erts/emulator/beam/erl_drv_nif.h +++ b/erts/emulator/beam/erl_drv_nif.h @@ -144,8 +144,25 @@ typedef signed int ErlNapiSInt; #define ERTS_NAPI_USEC__ 2 #define ERTS_NAPI_NSEC__ 3 -#endif /* __ERL_DRV_NIF_H__ */ - - - +#if (defined(__WIN32__) || defined(_WIN32) || defined(_WIN32_)) +/* + * This structure can be cast to a WSABUF structure. + */ +typedef struct _SysIOVec { + unsigned long iov_len; + char* iov_base; +} SysIOVec; +#else /* Unix */ +# include <sys/types.h> +# ifdef HAVE_SYS_UIO_H +# include <sys/uio.h> +typedef struct iovec SysIOVec; +# else +typedef struct { + char* iov_base; + size_t iov_len; +} SysIOVec; +# endif +#endif +#endif /* __ERL_DRV_NIF_H__ */ diff --git a/erts/emulator/beam/erl_io_queue.c b/erts/emulator/beam/erl_io_queue.c new file mode 100644 index 0000000000..a01b676d39 --- /dev/null +++ b/erts/emulator/beam/erl_io_queue.c @@ -0,0 +1,1230 @@ +/* + * %CopyrightBegin% + * + * Copyright Ericsson AB 2017. All Rights Reserved. + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * %CopyrightEnd% + */ + +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif + +#include "sys.h" +#include "global.h" + +#define ERL_WANT_HIPE_BIF_WRAPPER__ +#include "bif.h" +#undef ERL_WANT_HIPE_BIF_WRAPPER__ + +#include "erl_bits.h" +#include "erl_io_queue.h" + +#define IOL2V_SMALL_BIN_LIMIT (ERL_ONHEAP_BIN_LIMIT * 4) + +static void free_binary(ErtsIOQBinary *b, int driver); +static ErtsIOQBinary *alloc_binary(Uint size, char *source, void **iov_base, int driver); + +void erts_ioq_init(ErtsIOQueue *q, ErtsAlcType_t alct, int driver) +{ + + ERTS_CT_ASSERT(offsetof(ErlNifIOVec,flags) == sizeof(ErtsIOVecCommon)); + ERTS_CT_ASSERT(sizeof(ErlIOVec) == sizeof(ErtsIOVecCommon)); + ERTS_CT_ASSERT(sizeof(size_t) == sizeof(ErlDrvSizeT)); + ERTS_CT_ASSERT(sizeof(size_t) == sizeof(Uint)); + + q->alct = alct; + q->driver = driver; + q->size = 0; + q->v_head = q->v_tail = q->v_start = q->v_small; + q->v_end = q->v_small + ERTS_SMALL_IO_QUEUE; + q->b_head = q->b_tail = q->b_start = q->b_small; + q->b_end = q->b_small + ERTS_SMALL_IO_QUEUE; +} + +void erts_ioq_clear(ErtsIOQueue *q) +{ + ErtsIOQBinary** binp = q->b_head; + int driver = q->driver; + + if (q->v_start != q->v_small) + erts_free(q->alct, (void *) q->v_start); + + while(binp < q->b_tail) { + if (*binp != NULL) + free_binary(*binp, driver); + binp++; + } + if (q->b_start != q->b_small) + erts_free(q->alct, (void *) q->b_start); + q->v_start = q->v_end = q->v_head = q->v_tail = NULL; + q->b_start = q->b_end = q->b_head = q->b_tail = NULL; + q->size = 0; +} + +static void free_binary(ErtsIOQBinary *b, int driver) +{ + if (driver) + driver_free_binary(&b->driver); + else if (erts_refc_dectest(&b->nif.intern.refc, 0) == 0) + erts_bin_free(&b->nif); +} + +static ErtsIOQBinary *alloc_binary(Uint size, char *source, void **iov_base, int driver) +{ + if (driver) { + ErlDrvBinary *bin = driver_alloc_binary(size); + if (!bin) return NULL; + sys_memcpy(bin->orig_bytes, source, size); + *iov_base = bin->orig_bytes; + return (ErtsIOQBinary *)bin; + } else { + /* This clause can be triggered in enif_ioq_enq_binary is used */ + Binary *bin = erts_bin_nrml_alloc(size); + if (!bin) return NULL; + erts_refc_init(&bin->intern.refc, 1); + sys_memcpy(bin->orig_bytes, source, size); + *iov_base = bin->orig_bytes; + return (ErtsIOQBinary *)bin; + } +} + +Uint erts_ioq_size(ErtsIOQueue *q) +{ + return q->size; +} + +/* expand queue to hold n elements in tail or head */ +static int expandq(ErtsIOQueue* q, int n, int tail) +/* tail: 0 if make room in head, make room in tail otherwise */ +{ + int h_sz; /* room before header */ + int t_sz; /* room after tail */ + int q_sz; /* occupied */ + int nvsz; + SysIOVec* niov; + ErtsIOQBinary** nbinv; + + h_sz = q->v_head - q->v_start; + t_sz = q->v_end - q->v_tail; + q_sz = q->v_tail - q->v_head; + + if (tail && (n <= t_sz)) /* do we need to expand tail? */ + return 0; + else if (!tail && (n <= h_sz)) /* do we need to expand head? */ + return 0; + else if (n > (h_sz + t_sz)) { /* need to allocate */ + /* we may get little extra but it ok */ + nvsz = (q->v_end - q->v_start) + n; + + niov = erts_alloc_fnf(q->alct, nvsz * sizeof(SysIOVec)); + if (!niov) + return -1; + nbinv = erts_alloc_fnf(q->alct, nvsz * sizeof(ErtsIOQBinary**)); + if (!nbinv) { + erts_free(q->alct, (void *) niov); + return -1; + } + if (tail) { + sys_memcpy(niov, q->v_head, q_sz*sizeof(SysIOVec)); + if (q->v_start != q->v_small) + erts_free(q->alct, (void *) q->v_start); + q->v_start = niov; + q->v_end = niov + nvsz; + q->v_head = q->v_start; + q->v_tail = q->v_head + q_sz; + + sys_memcpy(nbinv, q->b_head, q_sz*sizeof(ErtsIOQBinary*)); + if (q->b_start != q->b_small) + erts_free(q->alct, (void *) q->b_start); + q->b_start = nbinv; + q->b_end = nbinv + nvsz; + q->b_head = q->b_start; + q->b_tail = q->b_head + q_sz; + } + else { + sys_memcpy(niov+nvsz-q_sz, q->v_head, q_sz*sizeof(SysIOVec)); + if (q->v_start != q->v_small) + erts_free(q->alct, (void *) q->v_start); + q->v_start = niov; + q->v_end = niov + nvsz; + q->v_tail = q->v_end; + q->v_head = q->v_tail - q_sz; + + sys_memcpy(nbinv+nvsz-q_sz, q->b_head, q_sz*sizeof(ErtsIOQBinary*)); + if (q->b_start != q->b_small) + erts_free(q->alct, (void *) q->b_start); + q->b_start = nbinv; + q->b_end = nbinv + nvsz; + q->b_tail = q->b_end; + q->b_head = q->b_tail - q_sz; + } + } + else if (tail) { /* move to beginning to make room in tail */ + sys_memmove(q->v_start, q->v_head, q_sz*sizeof(SysIOVec)); + q->v_head = q->v_start; + q->v_tail = q->v_head + q_sz; + sys_memmove(q->b_start, q->b_head, q_sz*sizeof(ErtsIOQBinary*)); + q->b_head = q->b_start; + q->b_tail = q->b_head + q_sz; + } + else { /* move to end to make room */ + sys_memmove(q->v_end-q_sz, q->v_head, q_sz*sizeof(SysIOVec)); + q->v_tail = q->v_end; + q->v_head = q->v_tail-q_sz; + sys_memmove(q->b_end-q_sz, q->b_head, q_sz*sizeof(ErtsIOQBinary*)); + q->b_tail = q->b_end; + q->b_head = q->b_tail-q_sz; + } + + return 0; +} + +static +int skip(ErtsIOVec* vec, Uint skipbytes, + SysIOVec **iovp, ErtsIOQBinary ***binvp, + Uint *lenp) +{ + int n; + Uint len; + SysIOVec* iov; + ErtsIOQBinary** binv; + + if (vec->common.size <= skipbytes) + return -1; + + iov = vec->common.iov; + binv = vec->common.binv; + n = vec->common.vsize; + /* we use do here to strip iov_len=0 from beginning */ + do { + len = iov->iov_len; + if (len <= skipbytes) { + skipbytes -= len; + iov++; + binv++; + n--; + } + else { + iov->iov_base = ((char *)(iov->iov_base)) + skipbytes; + iov->iov_len -= skipbytes; + skipbytes = 0; + } + } while(skipbytes > 0); + + *binvp = binv; + *iovp = iov; + *lenp = len; + + return n; +} + +/* Put elements from vec at q tail */ +int erts_ioq_enqv(ErtsIOQueue *q, ErtsIOVec *eiov, Uint skipbytes) +{ + int n; + Uint len; + Uint size = eiov->common.size - skipbytes; + SysIOVec *iov; + ErtsIOQBinary** binv; + ErtsIOQBinary* b; + + if (q == NULL) + return -1; + + ASSERT(eiov->common.size >= skipbytes); + if (eiov->common.size <= skipbytes) + return 0; + + n = skip(eiov, skipbytes, &iov, &binv, &len); + + if (n < 0) + return n; + + if (q->v_tail + n >= q->v_end) + if (expandq(q, n, 1)) + return -1; + + /* Queue and reference all binaries (remove zero length items) */ + while(n--) { + if ((len = iov->iov_len) > 0) { + if ((b = *binv) == NULL) { /* special case create binary ! */ + b = alloc_binary(len, iov->iov_base, (void**)&q->v_tail->iov_base, + q->driver); + if (!b) return -1; + *q->b_tail++ = b; + q->v_tail->iov_len = len; + q->v_tail++; + } + else { + if (q->driver) + driver_binary_inc_refc(&b->driver); + else + erts_refc_inc(&b->nif.intern.refc, 1); + *q->b_tail++ = b; + *q->v_tail++ = *iov; + } + } + iov++; + binv++; + } + q->size += size; /* update total size in queue */ + return 0; +} + +/* Put elements from vec at q head */ +int erts_ioq_pushqv(ErtsIOQueue *q, ErtsIOVec* vec, Uint skipbytes) +{ + int n; + Uint len; + Uint size = vec->common.size - skipbytes; + SysIOVec* iov; + ErtsIOQBinary** binv; + ErtsIOQBinary* b; + + if (q == NULL) + return -1; + + ASSERT(vec->common.size >= skipbytes); + if (vec->common.size <= skipbytes) + return 0; + + n = skip(vec, skipbytes, &iov, &binv, &len); + + if (n < 0) + return n; + + if (q->v_head - n < q->v_start) + if (expandq(q, n, 0)) + return -1; + + /* Queue and reference all binaries (remove zero length items) */ + iov += (n-1); /* move to end */ + binv += (n-1); /* move to end */ + while(n--) { + if ((len = iov->iov_len) > 0) { + if ((b = *binv) == NULL) { /* special case create binary ! */ + if (q->driver) { + ErlDrvBinary *bin = driver_alloc_binary(len); + if (!bin) return -1; + sys_memcpy(bin->orig_bytes, iov->iov_base, len); + b = (ErtsIOQBinary *)bin; + q->v_head->iov_base = bin->orig_bytes; + } + *--q->b_head = b; + q->v_head--; + q->v_head->iov_len = len; + } + else { + if (q->driver) + driver_binary_inc_refc(&b->driver); + else + erts_refc_inc(&b->nif.intern.refc, 1); + *--q->b_head = b; + *--q->v_head = *iov; + } + } + iov--; + binv--; + } + q->size += size; /* update total size in queue */ + return 0; +} + + +/* +** Remove size bytes from queue head +** Return number of bytes that remain in queue +*/ +int erts_ioq_deq(ErtsIOQueue *q, Uint size) +{ + Uint len; + + if ((q == NULL) || (q->size < size)) + return -1; + q->size -= size; + while (size > 0) { + ASSERT(q->v_head != q->v_tail); + + len = q->v_head->iov_len; + if (len <= size) { + size -= len; + free_binary(*q->b_head, q->driver); + *q->b_head++ = NULL; + q->v_head++; + } + else { + q->v_head->iov_base = ((char *)(q->v_head->iov_base)) + size; + q->v_head->iov_len -= size; + size = 0; + } + } + + /* restart pointers (optimised for enq) */ + if (q->v_head == q->v_tail) { + q->v_head = q->v_tail = q->v_start; + q->b_head = q->b_tail = q->b_start; + } + return 0; +} + + +Uint erts_ioq_peekqv(ErtsIOQueue *q, ErtsIOVec *ev) { + ASSERT(ev); + + if (! q) { + return (Uint) -1; + } else { + if ((ev->common.vsize = q->v_tail - q->v_head) == 0) { + ev->common.size = 0; + ev->common.iov = NULL; + ev->common.binv = NULL; + } else { + ev->common.size = q->size; + ev->common.iov = q->v_head; + ev->common.binv = q->b_head; + } + return q->size; + } +} + +SysIOVec* erts_ioq_peekq(ErtsIOQueue *q, int* vlenp) /* length of io-vector */ +{ + + if (q == NULL) { + *vlenp = -1; + return NULL; + } + if ((*vlenp = (q->v_tail - q->v_head)) == 0) + return NULL; + return q->v_head; +} + +/* Fills a possibly deep list of chars and binaries into vec +** Small characters are first stored in the buffer buf of length ln +** binaries found are copied and linked into msoh +** Return vector length on succsess, +** -1 on overflow +** -2 on type error +*/ + +static ERTS_INLINE void +io_list_to_vec_set_vec(SysIOVec **iov, ErtsIOQBinary ***binv, + ErtsIOQBinary *bin, byte *ptr, Uint len, + int *vlen) +{ + while (len > MAX_SYSIOVEC_IOVLEN) { + (*iov)->iov_base = ptr; + (*iov)->iov_len = MAX_SYSIOVEC_IOVLEN; + ptr += MAX_SYSIOVEC_IOVLEN; + len -= MAX_SYSIOVEC_IOVLEN; + (*iov)++; + (*vlen)++; + *(*binv)++ = bin; + } + (*iov)->iov_base = ptr; + (*iov)->iov_len = len; + *(*binv)++ = bin; + (*iov)++; + (*vlen)++; +} + +int +erts_ioq_iolist_to_vec(Eterm obj, /* io-list */ + SysIOVec* iov, /* io vector */ + ErtsIOQBinary** binv, /* binary reference vector */ + ErtsIOQBinary* cbin, /* binary to store characters */ + Uint bin_limit, /* small binaries limit */ + int driver) +{ + DECLARE_ESTACK(s); + Eterm* objp; + byte *buf = NULL; + Uint len = 0; + Uint csize = 0; + int vlen = 0; + byte* cptr; + + if (cbin) { + if (driver) { + buf = (byte*)cbin->driver.orig_bytes; + len = cbin->driver.orig_size; + } else { + buf = (byte*)cbin->nif.orig_bytes; + len = cbin->nif.orig_size; + } + } + cptr = buf; + + goto L_jump_start; /* avoid push */ + + while (!ESTACK_ISEMPTY(s)) { + obj = ESTACK_POP(s); + L_jump_start: + 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); + csize++; + len--; + } else if (is_binary(obj)) { + ESTACK_PUSH(s, CDR(objp)); + goto handle_binary; + } else if (is_list(obj)) { + ESTACK_PUSH(s, CDR(objp)); + goto L_iter_list; /* on head */ + } else if (!is_nil(obj)) { + goto L_type_error; + } + obj = CDR(objp); + if (is_list(obj)) + goto L_iter_list; /* on tail */ + else if (is_binary(obj)) { + goto handle_binary; + } else if (!is_nil(obj)) { + goto L_type_error; + } + } else if (is_binary(obj)) { + Eterm real_bin; + Uint offset; + Eterm* bptr; + Uint size; + int bitoffs; + int bitsize; + + handle_binary: + size = binary_size(obj); + ERTS_GET_REAL_BIN(obj, real_bin, offset, bitoffs, bitsize); + ASSERT(bitsize == 0); + bptr = binary_val(real_bin); + if (*bptr == HEADER_PROC_BIN) { + ProcBin* pb = (ProcBin *) bptr; + if (bitoffs != 0) { + if (len < size) { + goto L_overflow; + } + erts_copy_bits(pb->bytes+offset, bitoffs, 1, + (byte *) buf, 0, 1, size*8); + csize += size; + buf += size; + len -= size; + } else if (bin_limit && size < bin_limit) { + if (len < size) { + goto L_overflow; + } + sys_memcpy(buf, pb->bytes+offset, size); + csize += size; + buf += size; + len -= size; + } else { + ErtsIOQBinary *qbin; + if (csize != 0) { + io_list_to_vec_set_vec(&iov, &binv, cbin, + cptr, csize, &vlen); + cptr = buf; + csize = 0; + } + if (pb->flags) { + erts_emasculate_writable_binary(pb); + } + if (driver) + qbin = (ErtsIOQBinary*)Binary2ErlDrvBinary(pb->val); + else + qbin = (ErtsIOQBinary*)pb->val; + + io_list_to_vec_set_vec( + &iov, &binv, qbin, + pb->bytes+offset, size, &vlen); + } + } else { + ErlHeapBin* hb = (ErlHeapBin *) bptr; + if (len < size) { + goto L_overflow; + } + copy_binary_to_buffer(buf, 0, + ((byte *) hb->data)+offset, bitoffs, + 8*size); + csize += size; + buf += size; + len -= size; + } + } else if (!is_nil(obj)) { + goto L_type_error; + } + } + + if (csize != 0) { + io_list_to_vec_set_vec(&iov, &binv, cbin, cptr, csize, &vlen); + } + + DESTROY_ESTACK(s); + return vlen; + + L_type_error: + DESTROY_ESTACK(s); + return -2; + + L_overflow: + DESTROY_ESTACK(s); + return -1; +} + +static ERTS_INLINE int +io_list_vec_count(Eterm obj, Uint *v_size, + Uint *c_size, Uint *b_size, Uint *in_clist, + Uint *p_v_size, Uint *p_c_size, Uint *p_in_clist, + Uint blimit) +{ + Uint size = binary_size(obj); + Eterm real; + ERTS_DECLARE_DUMMY(Uint offset); + int bitoffs; + int bitsize; + ERTS_GET_REAL_BIN(obj, real, offset, bitoffs, bitsize); + if (bitsize != 0) return 1; + if (thing_subtag(*binary_val(real)) == REFC_BINARY_SUBTAG && + bitoffs == 0) { + *b_size += size; + if (*b_size < size) return 2; + *in_clist = 0; + ++*v_size; + /* If iov_len is smaller then Uint we split the binary into*/ + /* multiple smaller (2GB) elements in the iolist.*/ + *v_size += size / MAX_SYSIOVEC_IOVLEN; + if (size >= blimit) { + *p_in_clist = 0; + ++*p_v_size; + } else { + *p_c_size += size; + if (!*p_in_clist) { + *p_in_clist = 1; + ++*p_v_size; + } + } + } else { + *c_size += size; + if (*c_size < size) return 2; + if (!*in_clist) { + *in_clist = 1; + ++*v_size; + } + *p_c_size += size; + if (!*p_in_clist) { + *p_in_clist = 1; + ++*p_v_size; + } + } + return 0; +} + +#define IO_LIST_VEC_COUNT(obj) \ + do { \ + switch (io_list_vec_count(obj, &v_size, &c_size, \ + &b_size, &in_clist, \ + &p_v_size, &p_c_size, &p_in_clist, \ + blimit)) { \ + case 1: goto L_type_error; \ + case 2: goto L_overflow_error; \ + default: break; \ + } \ + } while(0) + +/* + * Returns 0 if successful and a non-zero value otherwise. + * + * Return values through pointers: + * *vsize - SysIOVec size needed for a writev + * *csize - Number of bytes not in binary (in the common binary) + * *pvsize - SysIOVec size needed if packing small binaries + * *pcsize - Number of bytes in the common binary if packing + * *total_size - Total size of iolist in bytes + */ +int +erts_ioq_iolist_vec_len(Eterm obj, int* vsize, Uint* csize, + Uint* pvsize, Uint* pcsize, + Uint* total_size, Uint blimit) +{ + DECLARE_ESTACK(s); + Eterm* objp; + Uint v_size = 0; + Uint c_size = 0; + Uint b_size = 0; + Uint in_clist = 0; + Uint p_v_size = 0; + Uint p_c_size = 0; + Uint p_in_clist = 0; + Uint total; + + goto L_jump_start; /* avoid a push */ + + while (!ESTACK_ISEMPTY(s)) { + obj = ESTACK_POP(s); + L_jump_start: + if (is_list(obj)) { + L_iter_list: + objp = list_val(obj); + obj = CAR(objp); + + if (is_byte(obj)) { + c_size++; + if (c_size == 0) { + goto L_overflow_error; + } + if (!in_clist) { + in_clist = 1; + v_size++; + } + p_c_size++; + if (!p_in_clist) { + p_in_clist = 1; + p_v_size++; + } + } + else if (is_binary(obj)) { + IO_LIST_VEC_COUNT(obj); + } + else if (is_list(obj)) { + ESTACK_PUSH(s, CDR(objp)); + goto L_iter_list; /* on head */ + } + else if (!is_nil(obj)) { + goto L_type_error; + } + + obj = CDR(objp); + if (is_list(obj)) + goto L_iter_list; /* on tail */ + else if (is_binary(obj)) { /* binary tail is OK */ + IO_LIST_VEC_COUNT(obj); + } + else if (!is_nil(obj)) { + goto L_type_error; + } + } + else if (is_binary(obj)) { + IO_LIST_VEC_COUNT(obj); + } + else if (!is_nil(obj)) { + goto L_type_error; + } + } + + total = c_size + b_size; + if (total < c_size) { + goto L_overflow_error; + } + *total_size = total; + + DESTROY_ESTACK(s); + *vsize = v_size; + *csize = c_size; + *pvsize = p_v_size; + *pcsize = p_c_size; + return 0; + + L_type_error: + L_overflow_error: + DESTROY_ESTACK(s); + return 1; +} + +typedef struct { + Eterm result_head; + Eterm result_tail; + Eterm input_list; + + UWord acc_size; + Binary *acc; + + /* We yield after copying this many bytes into the accumulator (Minus + * eating a few on consing etc). Large binaries will only count to the + * extent their split (if any) resulted in a copy op. */ + UWord bytereds_available; + UWord bytereds_spent; + + Process *process; + ErtsEStack estack; + + Eterm magic_reference; +} iol2v_state_t; + +static int iol2v_state_destructor(Binary *data) { + iol2v_state_t *state = ERTS_MAGIC_BIN_UNALIGNED_DATA(data); + + DESTROY_SAVED_ESTACK(&state->estack); + + if (state->acc != NULL) { + erts_bin_free(state->acc); + } + + return 1; +} + +static void iol2v_init(iol2v_state_t *state, Process *process, Eterm input) { + state->process = process; + + state->result_head = NIL; + state->result_tail = NIL; + state->input_list = input; + + state->magic_reference = NIL; + state->acc_size = 0; + state->acc = NULL; + + CLEAR_SAVED_ESTACK(&state->estack); +} + +static Eterm iol2v_make_sub_bin(iol2v_state_t *state, Eterm bin_term, + UWord offset, UWord size) { + Uint byte_offset, bit_offset, bit_size; + ErlSubBin *sb; + Eterm orig_pb_term; + + sb = (ErlSubBin*)HAlloc(state->process, ERL_SUB_BIN_SIZE); + + ERTS_GET_REAL_BIN(bin_term, orig_pb_term, + byte_offset, bit_offset, bit_size); + + (void)bit_offset; + (void)bit_size; + + sb->thing_word = HEADER_SUB_BIN; + sb->bitsize = 0; + sb->bitoffs = 0; + sb->orig = orig_pb_term; + sb->is_writable = 0; + + sb->offs = byte_offset + offset; + sb->size = size; + + return make_binary(sb); +} + +static Eterm iol2v_promote_acc(iol2v_state_t *state) { + ProcBin *pb; + + state->acc = erts_bin_realloc(state->acc, state->acc_size); + + pb = (ProcBin*)HAlloc(state->process, PROC_BIN_SIZE); + pb->thing_word = HEADER_PROC_BIN; + pb->size = state->acc_size; + pb->val = state->acc; + pb->bytes = (byte*)(state->acc)->orig_bytes; + pb->flags = 0; + pb->next = MSO(state->process).first; + OH_OVERHEAD(&(MSO(state->process)), pb->size / sizeof(Eterm)); + MSO(state->process).first = (struct erl_off_heap_header*)pb; + + state->acc_size = 0; + state->acc = NULL; + + return make_binary(pb); +} + +/* Destructively enqueues a term to the result list, saving us the hassle of + * having to reverse it later. This is safe since GC is disabled and we never + * leak the unfinished term to the outside. */ +static void iol2v_enqueue_result(iol2v_state_t *state, Eterm term) { + Eterm prev_tail; + Eterm *hp; + + prev_tail = state->result_tail; + + hp = HAlloc(state->process, 2); + state->result_tail = CONS(hp, term, NIL); + + if(prev_tail != NIL) { + Eterm *prev_cell = list_val(prev_tail); + CDR(prev_cell) = state->result_tail; + } else { + state->result_head = state->result_tail; + } + + state->bytereds_spent += 1; +} + +#ifndef DEBUG + #define ACC_REALLOCATION_LIMIT (IOL2V_SMALL_BIN_LIMIT * 32) +#else + #define ACC_REALLOCATION_LIMIT (IOL2V_SMALL_BIN_LIMIT * 4) +#endif + +static void iol2v_expand_acc(iol2v_state_t *state, UWord extra) { + UWord required_bytes, acc_alloc_size; + + ERTS_CT_ASSERT(ERTS_UWORD_MAX > ACC_REALLOCATION_LIMIT / 2); + ASSERT(extra >= 1); + + acc_alloc_size = state->acc != NULL ? (state->acc)->orig_size : 0; + required_bytes = state->acc_size + extra; + + if (state->acc == NULL) { + UWord new_size = MAX(required_bytes, IOL2V_SMALL_BIN_LIMIT); + + state->acc = erts_bin_nrml_alloc(new_size); + } else if (required_bytes > acc_alloc_size) { + Binary *prev_acc; + UWord new_size; + + if (acc_alloc_size >= ACC_REALLOCATION_LIMIT) { + /* We skip reallocating once we hit a certain point; it often + * results in extra copying and we're very likely to overallocate + * on anything other than absurdly long byte/heapbin sequences. */ + iol2v_enqueue_result(state, iol2v_promote_acc(state)); + iol2v_expand_acc(state, extra); + return; + } + + new_size = MAX(required_bytes, acc_alloc_size * 2); + prev_acc = state->acc; + + state->acc = erts_bin_realloc(prev_acc, new_size); + + if (prev_acc != state->acc) { + state->bytereds_spent += state->acc_size; + } + } + + state->bytereds_spent += extra; +} + +static int iol2v_append_byte_seq(iol2v_state_t *state, Eterm seq_start, Eterm *seq_end) { + Eterm lookahead, iterator; + Uint observed_bits; + SWord seq_length; + char *acc_data; + + lookahead = seq_start; + seq_length = 0; + + ASSERT(state->bytereds_available > state->bytereds_spent); + + while (is_list(lookahead)) { + Eterm *cell = list_val(lookahead); + + if (!is_small(CAR(cell))) { + break; + } + + if (seq_length * 2 >= (state->bytereds_available - state->bytereds_spent)) { + break; + } + + lookahead = CDR(cell); + seq_length += 1; + } + + ASSERT(seq_length >= 1); + + iol2v_expand_acc(state, seq_length); + + /* Bump a few extra reductions to account for list traversal. */ + state->bytereds_spent += seq_length; + + acc_data = &(state->acc)->orig_bytes[state->acc_size]; + state->acc_size += seq_length; + + iterator = seq_start; + observed_bits = 0; + + while (iterator != lookahead) { + Eterm *cell; + Uint byte; + + cell = list_val(iterator); + iterator = CDR(cell); + + byte = unsigned_val(CAR(cell)); + observed_bits |= byte; + + ASSERT(acc_data < &(state->acc)->orig_bytes[state->acc_size]); + *(acc_data++) = byte; + } + + if (observed_bits > UCHAR_MAX) { + return 0; + } + + ASSERT(acc_data == &(state->acc)->orig_bytes[state->acc_size]); + *seq_end = iterator; + + return 1; +} + +static int iol2v_append_binary(iol2v_state_t *state, Eterm bin_term) { + int is_acc_small, is_bin_small; + UWord combined_size; + UWord binary_size; + + Uint byte_offset, bit_offset, bit_size; + Eterm *parent_header; + Eterm parent_binary; + byte *binary_data; + + ASSERT(state->bytereds_available > state->bytereds_spent); + + ERTS_GET_REAL_BIN(bin_term, parent_binary, byte_offset, bit_offset, bit_size); + parent_header = binary_val(parent_binary); + binary_size = binary_size(bin_term); + + if (bit_offset != 0 || bit_size != 0) { + return 0; + } else if (binary_size == 0) { + state->bytereds_spent += 1; + return 1; + } + + is_acc_small = state->acc_size < IOL2V_SMALL_BIN_LIMIT; + is_bin_small = binary_size < IOL2V_SMALL_BIN_LIMIT; + combined_size = binary_size + state->acc_size; + + if (thing_subtag(*parent_header) == REFC_BINARY_SUBTAG) { + ProcBin *pb = (ProcBin*)parent_header; + + if (pb->flags) { + erts_emasculate_writable_binary(pb); + } + + binary_data = pb->bytes; + } else { + ErlHeapBin *hb = (ErlHeapBin*)parent_header; + + ASSERT(thing_subtag(*parent_header) == HEAP_BINARY_SUBTAG); + ASSERT(is_bin_small); + + binary_data = &((unsigned char*)&hb->data)[byte_offset]; + } + + if (!is_bin_small && (state->acc_size == 0 || !is_acc_small)) { + /* Avoid combining if we encounter an acceptably large binary while the + * accumulator is either empty or large enough to be returned on its + * own. */ + if (state->acc_size != 0) { + iol2v_enqueue_result(state, iol2v_promote_acc(state)); + } + + iol2v_enqueue_result(state, bin_term); + } else if (is_bin_small || combined_size < (IOL2V_SMALL_BIN_LIMIT * 2)) { + /* If the candidate is small or we can't split the combination in two, + * then just copy it into the accumulator. */ + iol2v_expand_acc(state, binary_size); + + sys_memcpy(&(state->acc)->orig_bytes[state->acc_size], + binary_data, binary_size); + + state->acc_size += binary_size; + } else { + /* Otherwise, append enough data for the accumulator to be valid, and + * then return the rest as a sub-binary. */ + UWord spill = IOL2V_SMALL_BIN_LIMIT - state->acc_size; + Eterm binary_tail; + + iol2v_expand_acc(state, spill); + + sys_memcpy(&(state->acc)->orig_bytes[state->acc_size], + binary_data, spill); + + state->acc_size += spill; + + binary_tail = iol2v_make_sub_bin(state, bin_term, spill, + binary_size - spill); + + iol2v_enqueue_result(state, iol2v_promote_acc(state)); + iol2v_enqueue_result(state, binary_tail); + } + + return 1; +} + +static BIF_RETTYPE iol2v_yield(iol2v_state_t *state) { + if (is_nil(state->magic_reference)) { + iol2v_state_t *boxed_state; + Binary *magic_binary; + Eterm *hp; + + magic_binary = erts_create_magic_binary_x(sizeof(*state), + &iol2v_state_destructor, ERTS_ALC_T_BINARY, 1); + + boxed_state = ERTS_MAGIC_BIN_UNALIGNED_DATA(magic_binary); + sys_memcpy(boxed_state, state, sizeof(*state)); + + hp = HAlloc(boxed_state->process, ERTS_MAGIC_REF_THING_SIZE); + boxed_state->magic_reference = + erts_mk_magic_ref(&hp, &MSO(boxed_state->process), magic_binary); + + state = boxed_state; + } + + ERTS_BIF_YIELD1(bif_export[BIF_iolist_to_iovec_1], + state->process, state->magic_reference); +} + +static BIF_RETTYPE iol2v_continue(iol2v_state_t *state) { + Eterm iterator; + + DECLARE_ESTACK(s); + ESTACK_CHANGE_ALLOCATOR(s, ERTS_ALC_T_SAVED_ESTACK); + + state->bytereds_available = + ERTS_BIF_REDS_LEFT(state->process) * IOL2V_SMALL_BIN_LIMIT; + state->bytereds_spent = 0; + + if (state->estack.start) { + ESTACK_RESTORE(s, &state->estack); + } + + iterator = state->input_list; + + for(;;) { + if (state->bytereds_spent >= state->bytereds_available) { + ESTACK_SAVE(s, &state->estack); + state->input_list = iterator; + + return iol2v_yield(state); + } + + while (is_list(iterator)) { + Eterm *cell; + Eterm head; + + cell = list_val(iterator); + head = CAR(cell); + + if (is_binary(head)) { + if (!iol2v_append_binary(state, head)) { + goto l_badarg; + } + + iterator = CDR(cell); + } else if (is_small(head)) { + Eterm seq_end; + + if (!iol2v_append_byte_seq(state, iterator, &seq_end)) { + goto l_badarg; + } + + iterator = seq_end; + } else if (is_list(head) || is_nil(head)) { + Eterm tail = CDR(cell); + + if (!is_nil(tail)) { + ESTACK_PUSH(s, tail); + } + + state->bytereds_spent += 1; + iterator = head; + } else { + goto l_badarg; + } + + if (state->bytereds_spent >= state->bytereds_available) { + ESTACK_SAVE(s, &state->estack); + state->input_list = iterator; + + return iol2v_yield(state); + } + } + + if (is_binary(iterator)) { + if (!iol2v_append_binary(state, iterator)) { + goto l_badarg; + } + } else if (!is_nil(iterator)) { + goto l_badarg; + } + + if(ESTACK_ISEMPTY(s)) { + break; + } + + iterator = ESTACK_POP(s); + } + + if (state->acc_size != 0) { + iol2v_enqueue_result(state, iol2v_promote_acc(state)); + } + + BUMP_REDS(state->process, state->bytereds_spent / IOL2V_SMALL_BIN_LIMIT); + + CLEAR_SAVED_ESTACK(&state->estack); + DESTROY_ESTACK(s); + + BIF_RET(state->result_head); + +l_badarg: + CLEAR_SAVED_ESTACK(&state->estack); + DESTROY_ESTACK(s); + + if (state->acc != NULL) { + erts_bin_free(state->acc); + state->acc = NULL; + } + + BIF_ERROR(state->process, BADARG); +} + +HIPE_WRAPPER_BIF_DISABLE_GC(iolist_to_iovec, 1) + +BIF_RETTYPE iolist_to_iovec_1(BIF_ALIST_1) { + BIF_RETTYPE result; + + if (is_nil(BIF_ARG_1)) { + BIF_RET(NIL); + } else if (is_binary(BIF_ARG_1)) { + if (binary_size(BIF_ARG_1) != 0) { + Eterm *hp = HAlloc(BIF_P, 2); + + BIF_RET(CONS(hp, BIF_ARG_1, NIL)); + } else { + BIF_RET(NIL); + } + } else if (is_internal_magic_ref(BIF_ARG_1)) { + iol2v_state_t *state; + Binary *magic; + + magic = erts_magic_ref2bin(BIF_ARG_1); + + if (ERTS_MAGIC_BIN_DESTRUCTOR(magic) != &iol2v_state_destructor) { + ASSERT(!(BIF_P->flags & F_DISABLE_GC)); + BIF_ERROR(BIF_P, BADARG); + } + + ASSERT(BIF_P->flags & F_DISABLE_GC); + + state = ERTS_MAGIC_BIN_UNALIGNED_DATA(magic); + result = iol2v_continue(state); + } else if (!is_list(BIF_ARG_1)) { + ASSERT(!(BIF_P->flags & F_DISABLE_GC)); + BIF_ERROR(BIF_P, BADARG); + } else { + iol2v_state_t state; + + iol2v_init(&state, BIF_P, BIF_ARG_1); + + erts_set_gc_state(BIF_P, 0); + + result = iol2v_continue(&state); + } + + if (result != THE_NON_VALUE || BIF_P->freason != TRAP) { + erts_set_gc_state(BIF_P, 1); + } + + BIF_RET(result); +} diff --git a/erts/emulator/beam/erl_io_queue.h b/erts/emulator/beam/erl_io_queue.h new file mode 100644 index 0000000000..51abe99510 --- /dev/null +++ b/erts/emulator/beam/erl_io_queue.h @@ -0,0 +1,201 @@ +/* + * %CopyrightBegin% + * + * Copyright Ericsson AB 2017. All Rights Reserved. + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * %CopyrightEnd% + */ + +/* + * Description: A queue used for storing binary data that should be + * passed to writev or similar functions. Used by both + * the nif and driver api. + * + * Author: Lukas Larsson + */ + +#ifndef ERL_IO_QUEUE_H__TYPES__ +#define ERL_IO_QUEUE_H__TYPES__ + +#define ERTS_BINARY_TYPES_ONLY__ +#include "erl_binary.h" +#undef ERTS_BINARY_TYPES_ONLY__ +#include "erl_nif.h" + +#ifdef DEBUG +#define MAX_SYSIOVEC_IOVLEN (1ull << (32 - 1)) +#else +#define MAX_SYSIOVEC_IOVLEN (1ull << (sizeof(((SysIOVec*)0)->iov_len) * 8 - 1)) +#endif + +#define ERTS_SMALL_IO_QUEUE 5 + +typedef union { + ErlDrvBinary driver; + Binary nif; +} ErtsIOQBinary; + +typedef struct { + int vsize; /* length of vectors */ + Uint size; /* total size in bytes */ + SysIOVec* iov; + ErtsIOQBinary** binv; +} ErtsIOVecCommon; + +typedef union { + ErtsIOVecCommon common; + ErlIOVec driver; + ErlNifIOVec nif; +} ErtsIOVec; + +/* head/tail represent the data in the queue + * start/end represent the edges of the allocated queue + * small is used when the number of iovec elements is < SMALL_IO_QUEUE + */ +typedef struct erts_io_queue { + ErtsAlcType_t alct; + int driver; + Uint size; /* total size in bytes */ + + SysIOVec* v_start; + SysIOVec* v_end; + SysIOVec* v_head; + SysIOVec* v_tail; + SysIOVec v_small[ERTS_SMALL_IO_QUEUE]; + + ErtsIOQBinary **b_start; + ErtsIOQBinary **b_end; + ErtsIOQBinary **b_head; + ErtsIOQBinary **b_tail; + ErtsIOQBinary *b_small[ERTS_SMALL_IO_QUEUE]; + +} ErtsIOQueue; + +#endif /* ERL_IO_QUEUE_H__TYPES__ */ + +#if !defined(ERL_IO_QUEUE_H) && !defined(ERTS_IO_QUEUE_TYPES_ONLY__) +#define ERL_IO_QUEUE_H + +#include "erl_binary.h" +#include "erl_bits.h" + +void erts_ioq_init(ErtsIOQueue *q, ErtsAlcType_t alct, int driver); +void erts_ioq_clear(ErtsIOQueue *q); +Uint erts_ioq_size(ErtsIOQueue *q); +int erts_ioq_enqv(ErtsIOQueue *q, ErtsIOVec *vec, Uint skip); +int erts_ioq_pushqv(ErtsIOQueue *q, ErtsIOVec *vec, Uint skip); +int erts_ioq_deq(ErtsIOQueue *q, Uint Uint); +Uint erts_ioq_peekqv(ErtsIOQueue *q, ErtsIOVec *ev); +SysIOVec *erts_ioq_peekq(ErtsIOQueue *q, int *vlenp); +Uint erts_ioq_sizeq(ErtsIOQueue *q); + +int erts_ioq_iolist_vec_len(Eterm obj, int* vsize, Uint* csize, + Uint* pvsize, Uint* pcsize, + Uint* total_size, Uint blimit); +int erts_ioq_iolist_to_vec(Eterm obj, SysIOVec* iov, + ErtsIOQBinary** binv, ErtsIOQBinary* cbin, + Uint bin_limit, int driver_binary); + +ERTS_GLB_INLINE +int erts_ioq_iodata_vec_len(Eterm obj, int* vsize, Uint* csize, + Uint* pvsize, Uint* pcsize, + Uint* total_size, Uint blimit); +ERTS_GLB_INLINE +int erts_ioq_iodata_to_vec(Eterm obj, SysIOVec* iov, + ErtsIOQBinary** binv, ErtsIOQBinary* cbin, + Uint bin_limit, int driver_binary); + + +#if ERTS_GLB_INLINE_INCL_FUNC_DEF + +ERTS_GLB_INLINE +int erts_ioq_iodata_vec_len(Eterm obj, int* vsize, Uint* csize, + Uint* pvsize, Uint* pcsize, + Uint* total_size, Uint blimit) { + if (is_binary(obj)) { + /* We optimize for when we get a procbin without a bit-offset + * that fits in one iov slot + */ + Eterm real_bin; + byte bitoffs; + byte bitsize; + ERTS_DECLARE_DUMMY(Uint offset); + Uint size = binary_size(obj); + ERTS_GET_REAL_BIN(obj, real_bin, offset, bitoffs, bitsize); + if (size < MAX_SYSIOVEC_IOVLEN && bitoffs == 0 && bitsize == 0) { + *vsize = 1; + *pvsize = 1; + if (thing_subtag(*binary_val(real_bin)) == REFC_BINARY_SUBTAG) { + *csize = 0; + *pcsize = 0; + } else { + *csize = size; + *pcsize = size; + } + *total_size = size; + return 0; + } + } + + return erts_ioq_iolist_vec_len(obj, vsize, csize, + pvsize, pcsize, total_size, blimit); +} + +ERTS_GLB_INLINE +int erts_ioq_iodata_to_vec(Eterm obj, + SysIOVec *iov, + ErtsIOQBinary **binv, + ErtsIOQBinary *cbin, + Uint bin_limit, + int driver) +{ + if (is_binary(obj)) { + Eterm real_bin; + byte bitoffs; + byte bitsize; + Uint offset; + Uint size = binary_size(obj); + ERTS_GET_REAL_BIN(obj, real_bin, offset, bitoffs, bitsize); + if (size < MAX_SYSIOVEC_IOVLEN && bitoffs == 0 && bitsize == 0) { + Eterm *bptr = binary_val(real_bin); + if (thing_subtag(*bptr) == REFC_BINARY_SUBTAG) { + ProcBin *pb = (ProcBin *)bptr; + if (pb->flags) + erts_emasculate_writable_binary(pb); + iov[0].iov_base = pb->bytes+offset; + iov[0].iov_len = size; + if (driver) + binv[0] = (ErtsIOQBinary*)Binary2ErlDrvBinary(pb->val); + else + binv[0] = (ErtsIOQBinary*)pb->val; + return 1; + } else { + ErlHeapBin* hb = (ErlHeapBin *)bptr; + byte *buf = driver ? (byte*)cbin->driver.orig_bytes : + (byte*)cbin->nif.orig_bytes; + copy_binary_to_buffer(buf, 0, ((byte *) hb->data)+offset, 0, 8*size); + iov[0].iov_base = buf; + iov[0].iov_len = size; + binv[0] = cbin; + return 1; + } + } + } + return erts_ioq_iolist_to_vec(obj, iov, binv, cbin, bin_limit, driver); +} + +#endif + +#endif /* ERL_IO_QUEUE_H */ diff --git a/erts/emulator/beam/erl_lock_check.c b/erts/emulator/beam/erl_lock_check.c index b68b48874d..47c0fd2869 100644 --- a/erts/emulator/beam/erl_lock_check.c +++ b/erts/emulator/beam/erl_lock_check.c @@ -160,9 +160,9 @@ static erts_lc_lock_order_t erts_lock_order[] = { { "xports_list_pre_alloc_lock", "address" }, { "inet_buffer_stack_lock", NULL }, { "system_block", NULL }, - { "timeofday", NULL }, { "get_time", NULL }, { "get_corrected_time", NULL }, + { "runtime", NULL }, { "breakpoints", NULL }, { "pix_lock", "address" }, { "run_queues_lists", NULL }, diff --git a/erts/emulator/beam/erl_monitors.c b/erts/emulator/beam/erl_monitors.c index 67c552b364..1c840d89f6 100644 --- a/erts/emulator/beam/erl_monitors.c +++ b/erts/emulator/beam/erl_monitors.c @@ -993,7 +993,6 @@ Eterm erts_debug_dump_monitors_1(BIF_ALIST_1) erts_dump_monitors(dep->monitors,0); erts_de_links_unlock(dep); erts_printf("Monitors dumped-------------------------\n"); - erts_deref_dist_entry(dep); BIF_RET(am_true); } else { BIF_ERROR(p,BADARG); @@ -1038,7 +1037,6 @@ Eterm erts_debug_dump_links_1(BIF_ALIST_1) erts_dump_links(dep->nlinks,0); erts_de_links_unlock(dep); erts_printf("Links dumped----------------------------\n"); - erts_deref_dist_entry(dep); BIF_RET(am_true); } else { BIF_ERROR(p,BADARG); diff --git a/erts/emulator/beam/erl_nif.c b/erts/emulator/beam/erl_nif.c index 05bcf73451..d3271a4560 100644 --- a/erts/emulator/beam/erl_nif.c +++ b/erts/emulator/beam/erl_nif.c @@ -56,6 +56,7 @@ #include "erl_process.h" #include "erl_bif_unique.h" #include "erl_utils.h" +#include "erl_io_queue.h" #undef ERTS_WANT_NFUNC_SCHED_INTERNALS__ #define ERTS_WANT_NFUNC_SCHED_INTERNALS__ #include "erl_nfunc_sched.h" @@ -66,7 +67,6 @@ #include <limits.h> #include <stddef.h> /* offsetof */ - /* Information about a loaded nif library. * Each successful call to erlang:load_nif will allocate an instance of * erl_module_nif. Two calls opening the same library will thus have the same @@ -3259,6 +3259,363 @@ int enif_compare_monitors(const ErlNifMonitor *monitor1, ERTS_REF_THING_SIZE*sizeof(Eterm)); } +ErlNifIOQueue *enif_ioq_create(ErlNifIOQueueOpts opts) +{ + ErlNifIOQueue *q; + + if (opts != ERL_NIF_IOQ_NORMAL) + return NULL; + + q = enif_alloc(sizeof(ErlNifIOQueue)); + if (!q) return NULL; + erts_ioq_init(q, ERTS_ALC_T_NIF, 0); + + return q; +} + +void enif_ioq_destroy(ErlNifIOQueue *q) +{ + erts_ioq_clear(q); + enif_free(q); +} + +/* If the iovec was preallocated (Stack or otherwise) it needs to be marked as + * such to perform a proper free. */ +#define ERL_NIF_IOVEC_FLAGS_PREALLOC (1 << 0) + +void enif_free_iovec(ErlNifIOVec *iov) +{ + int i; + /* Decrement the refc of all the binaries */ + for (i = 0; i < iov->iovcnt; i++) { + Binary *bptr = ((Binary**)iov->ref_bins)[i]; + /* bptr can be null if enq_binary was used */ + if (bptr && erts_refc_dectest(&bptr->intern.refc, 0) == 0) { + erts_bin_free(bptr); + } + } + + if (!(iov->flags & ERL_NIF_IOVEC_FLAGS_PREALLOC)) { + enif_free(iov); + } +} + +typedef struct { + UWord sublist_length; + Eterm sublist_start; + Eterm sublist_end; + + UWord offheap_size; + UWord onheap_size; + + UWord iovec_len; +} iovec_slice_t; + +static int examine_iovec_term(Eterm list, UWord max_length, iovec_slice_t *result) { + Eterm lookahead; + + result->sublist_start = list; + result->sublist_length = 0; + result->offheap_size = 0; + result->onheap_size = 0; + result->iovec_len = 0; + + lookahead = result->sublist_start; + + while (is_list(lookahead)) { + Eterm *binary_header, binary; + Eterm *cell; + UWord size; + + cell = list_val(lookahead); + binary = CAR(cell); + + if (!is_binary(binary)) { + return 0; + } + + size = binary_size(binary); + binary_header = binary_val(binary); + + /* If we're a sub-binary we'll need to check our underlying binary to + * determine whether we're on-heap or not. */ + if(thing_subtag(*binary_header) == SUB_BINARY_SUBTAG) { + ErlSubBin *sb = (ErlSubBin*)binary_header; + + /* Reject bitstrings */ + if((sb->bitoffs + sb->bitsize) > 0) { + return 0; + } + + ASSERT(size <= binary_size(sb->orig)); + binary_header = binary_val(sb->orig); + } + + if(thing_subtag(*binary_header) == HEAP_BINARY_SUBTAG) { + ASSERT(size <= ERL_ONHEAP_BIN_LIMIT); + + result->iovec_len += 1; + result->onheap_size += size; + } else { + ASSERT(thing_subtag(*binary_header) == REFC_BINARY_SUBTAG); + + result->iovec_len += 1 + size / MAX_SYSIOVEC_IOVLEN; + result->offheap_size += size; + } + + result->sublist_length += 1; + lookahead = CDR(cell); + + if(result->sublist_length >= max_length) { + break; + } + } + + if (!is_nil(lookahead) && !is_list(lookahead)) { + return 0; + } + + result->sublist_end = lookahead; + + return 1; +} + +static void inspect_raw_binary_data(Eterm binary, ErlNifBinary *result) { + Eterm *parent_header; + Eterm parent_binary; + + int bit_offset, bit_size; + Uint byte_offset; + + ASSERT(is_binary(binary)); + + ERTS_GET_REAL_BIN(binary, parent_binary, byte_offset, bit_offset, bit_size); + + parent_header = binary_val(parent_binary); + + result->size = binary_size(binary); + result->bin_term = binary; + + if (thing_subtag(*parent_header) == REFC_BINARY_SUBTAG) { + ProcBin *pb = (ProcBin*)parent_header; + + ASSERT(pb->val != NULL); + ASSERT(byte_offset < pb->size); + ASSERT(&pb->bytes[byte_offset] >= (byte*)(pb->val)->orig_bytes); + + result->data = (unsigned char*)&pb->bytes[byte_offset]; + result->ref_bin = (void*)pb->val; + } else { + ErlHeapBin *hb = (ErlHeapBin*)parent_header; + + ASSERT(thing_subtag(*parent_header) == HEAP_BINARY_SUBTAG); + + result->data = &((unsigned char*)&hb->data)[byte_offset]; + result->ref_bin = NULL; + } +} + +static int fill_iovec_with_slice(ErlNifEnv *env, + iovec_slice_t *slice, + ErlNifIOVec *iovec) { + UWord onheap_offset, iovec_idx; + ErlNifBinary onheap_data; + Eterm sublist_iterator; + + /* Set up a common refc binary for all on-heap binaries. */ + if (slice->onheap_size > 0) { + if (!enif_alloc_binary(slice->onheap_size, &onheap_data)) { + return 0; + } + } + + sublist_iterator = slice->sublist_start; + onheap_offset = 0; + iovec_idx = 0; + + while (sublist_iterator != slice->sublist_end) { + ErlNifBinary raw_data; + Eterm *cell; + + cell = list_val(sublist_iterator); + inspect_raw_binary_data(CAR(cell), &raw_data); + + /* If this isn't a refc binary, copy its contents to the onheap buffer + * and reference that instead. */ + if (raw_data.ref_bin == NULL) { + ASSERT(onheap_offset < onheap_data.size); + ASSERT(slice->onheap_size > 0); + + sys_memcpy(&onheap_data.data[onheap_offset], + raw_data.data, raw_data.size); + + raw_data.data = &onheap_data.data[onheap_offset]; + raw_data.ref_bin = onheap_data.ref_bin; + } + + ASSERT(raw_data.ref_bin != NULL); + + while (raw_data.size > 0) { + UWord chunk_len = MIN(raw_data.size, MAX_SYSIOVEC_IOVLEN); + + ASSERT(iovec_idx < iovec->iovcnt); + + iovec->iov[iovec_idx].iov_base = raw_data.data; + iovec->iov[iovec_idx].iov_len = chunk_len; + + iovec->ref_bins[iovec_idx] = raw_data.ref_bin; + + raw_data.data += chunk_len; + raw_data.size -= chunk_len; + + iovec_idx += 1; + } + + sublist_iterator = CDR(cell); + } + + ASSERT(iovec_idx == iovec->iovcnt); + + if (env == NULL) { + int i; + for (i = 0; i < iovec->iovcnt; i++) { + Binary *refc_binary = (Binary*)(iovec->ref_bins[i]); + erts_refc_inc(&refc_binary->intern.refc, 1); + } + + if (slice->onheap_size > 0) { + /* Transfer ownership to the iovec; we've taken references to it in + * the above loop. */ + enif_release_binary(&onheap_data); + } + } else { + if (slice->onheap_size > 0) { + /* Attach the binary to our environment and let the GC take care of + * it after returning. */ + enif_make_binary(env, &onheap_data); + } + } + + return 1; +} + +static int create_iovec_from_slice(ErlNifEnv *env, + iovec_slice_t *slice, + ErlNifIOVec **result) { + ErlNifIOVec *iovec = *result; + + if (iovec && slice->iovec_len < ERL_NIF_IOVEC_SIZE) { + iovec->iov = iovec->small_iov; + iovec->ref_bins = iovec->small_ref_bin; + iovec->flags = ERL_NIF_IOVEC_FLAGS_PREALLOC; + } else { + UWord iov_offset, binv_offset, alloc_size; + char *alloc_base; + + iov_offset = ERTS_ALC_DATA_ALIGN_SIZE(sizeof(ErlNifIOVec)); + binv_offset = iov_offset; + binv_offset += ERTS_ALC_DATA_ALIGN_SIZE(slice->iovec_len * sizeof(SysIOVec)); + alloc_size = binv_offset; + alloc_size += slice->iovec_len * sizeof(Binary*); + + /* If we have an environment we'll attach the allocated data to it. The + * GC will take care of releasing it later on. */ + if (env != NULL) { + ErlNifBinary gc_bin; + + if (!enif_alloc_binary(alloc_size, &gc_bin)) { + return 0; + } + + alloc_base = (char*)gc_bin.data; + enif_make_binary(env, &gc_bin); + } else { + alloc_base = enif_alloc(alloc_size); + } + + iovec = (ErlNifIOVec*)alloc_base; + iovec->iov = (SysIOVec*)(alloc_base + iov_offset); + iovec->ref_bins = (void**)(alloc_base + binv_offset); + iovec->flags = 0; + } + + iovec->size = slice->offheap_size + slice->onheap_size; + iovec->iovcnt = slice->iovec_len; + + if(!fill_iovec_with_slice(env, slice, iovec)) { + if (env == NULL && !(iovec->flags & ERL_NIF_IOVEC_FLAGS_PREALLOC)) { + enif_free(iovec); + } + + return 0; + } + + *result = iovec; + + return 1; +} + +int enif_inspect_iovec(ErlNifEnv *env, size_t max_elements, + ERL_NIF_TERM list, ERL_NIF_TERM *tail, + ErlNifIOVec **iov) { + iovec_slice_t slice; + + if(!examine_iovec_term(list, max_elements, &slice)) { + return 0; + } else if(!create_iovec_from_slice(env, &slice, iov)) { + return 0; + } + + (*tail) = slice.sublist_end; + + return 1; +} + +/* */ +int enif_ioq_enqv(ErlNifIOQueue *q, ErlNifIOVec *iov, size_t skip) +{ + if(skip <= iov->size) { + return !erts_ioq_enqv(q, (ErtsIOVec*)iov, skip); + } + + return 0; +} + +int enif_ioq_enq_binary(ErlNifIOQueue *q, ErlNifBinary *bin, size_t skip) +{ + ErlNifIOVec vec = {1, bin->size, NULL, NULL, ERL_NIF_IOVEC_FLAGS_PREALLOC }; + Binary *ref_bin = (Binary*)bin->ref_bin; + int res; + vec.iov = vec.small_iov; + vec.ref_bins = vec.small_ref_bin; + vec.iov[0].iov_base = bin->data; + vec.iov[0].iov_len = bin->size; + ((Binary**)(vec.ref_bins))[0] = ref_bin; + + res = enif_ioq_enqv(q, &vec, skip); + enif_release_binary(bin); + return res; +} + +size_t enif_ioq_size(ErlNifIOQueue *q) +{ + return erts_ioq_size(q); +} + +int enif_ioq_deq(ErlNifIOQueue *q, size_t elems, size_t *size) +{ + if (erts_ioq_deq(q, elems) == -1) + return 0; + if (size) + *size = erts_ioq_size(q); + return 1; +} + +SysIOVec *enif_ioq_peek(ErlNifIOQueue *q, int *iovlen) +{ + return erts_ioq_peekq(q, iovlen); +} + /*************************************************************************** ** load_nif/2 ** ***************************************************************************/ diff --git a/erts/emulator/beam/erl_nif.h b/erts/emulator/beam/erl_nif.h index b0d5c39798..d195721054 100644 --- a/erts/emulator/beam/erl_nif.h +++ b/erts/emulator/beam/erl_nif.h @@ -50,6 +50,7 @@ ** 2.9: 18.2 enif_getenv ** 2.10: Time API ** 2.11: 19.0 enif_snprintf +** 2.12: 20.0 add enif_queue */ #define ERL_NIF_MAJOR_VERSION 2 #define ERL_NIF_MINOR_VERSION 12 @@ -241,6 +242,28 @@ typedef enum { ERL_NIF_PHASH2 = 2 } ErlNifHash; +#define ERL_NIF_IOVEC_SIZE 16 + +typedef struct erl_nif_io_vec { + int iovcnt; /* length of vectors */ + size_t size; /* total size in bytes */ + SysIOVec *iov; + + /* internals (avert your eyes) */ + void **ref_bins; /* Binary[] */ + int flags; + + /* Used when stack allocating the io vec */ + SysIOVec small_iov[ERL_NIF_IOVEC_SIZE]; + void *small_ref_bin[ERL_NIF_IOVEC_SIZE]; +} ErlNifIOVec; + +typedef struct erts_io_queue ErlNifIOQueue; + +typedef enum { + ERL_NIF_IOQ_NORMAL = 1 +} ErlNifIOQueueOpts; + /* * Return values from enif_thread_type(). Negative values * reserved for specific types of non-scheduler threads. diff --git a/erts/emulator/beam/erl_nif_api_funcs.h b/erts/emulator/beam/erl_nif_api_funcs.h index 94c04cd126..9e573307d8 100644 --- a/erts/emulator/beam/erl_nif_api_funcs.h +++ b/erts/emulator/beam/erl_nif_api_funcs.h @@ -184,6 +184,21 @@ ERL_NIF_API_FUNC_DECL(ErlNifUInt64,enif_hash,(ErlNifHash type, ERL_NIF_TERM term ERL_NIF_API_FUNC_DECL(int, enif_whereis_pid, (ErlNifEnv *env, ERL_NIF_TERM name, ErlNifPid *pid)); ERL_NIF_API_FUNC_DECL(int, enif_whereis_port, (ErlNifEnv *env, ERL_NIF_TERM name, ErlNifPort *port)); +ERL_NIF_API_FUNC_DECL(ErlNifIOQueue *,enif_ioq_create,(ErlNifIOQueueOpts opts)); +ERL_NIF_API_FUNC_DECL(void,enif_ioq_destroy,(ErlNifIOQueue *q)); + +ERL_NIF_API_FUNC_DECL(int,enif_ioq_enq_binary,(ErlNifIOQueue *q, ErlNifBinary *bin, size_t skip)); +ERL_NIF_API_FUNC_DECL(int,enif_ioq_enqv,(ErlNifIOQueue *q, ErlNifIOVec *iov, size_t skip)); + +ERL_NIF_API_FUNC_DECL(size_t,enif_ioq_size,(ErlNifIOQueue *q)); +ERL_NIF_API_FUNC_DECL(int,enif_ioq_deq,(ErlNifIOQueue *q, size_t count, size_t *size)); + +ERL_NIF_API_FUNC_DECL(SysIOVec*,enif_ioq_peek,(ErlNifIOQueue *q, int *iovlen)); + +ERL_NIF_API_FUNC_DECL(int,enif_inspect_iovec,(ErlNifEnv *env, size_t max_length, ERL_NIF_TERM iovec_term, ERL_NIF_TERM *tail, ErlNifIOVec **iovec)); +ERL_NIF_API_FUNC_DECL(void,enif_free_iovec,(ErlNifIOVec *iov)); + + /* ** ADD NEW ENTRIES HERE (before this comment) !!! */ @@ -348,6 +363,16 @@ ERL_NIF_API_FUNC_DECL(int, enif_whereis_port, (ErlNifEnv *env, ERL_NIF_TERM name # define enif_hash ERL_NIF_API_FUNC_MACRO(enif_hash) # define enif_whereis_pid ERL_NIF_API_FUNC_MACRO(enif_whereis_pid) # define enif_whereis_port ERL_NIF_API_FUNC_MACRO(enif_whereis_port) +# define enif_ioq_create ERL_NIF_API_FUNC_MACRO(enif_ioq_create) +# define enif_ioq_destroy ERL_NIF_API_FUNC_MACRO(enif_ioq_destroy) +# define enif_ioq_enq ERL_NIF_API_FUNC_MACRO(enif_ioq_enq) +# define enif_ioq_enq_binary ERL_NIF_API_FUNC_MACRO(enif_ioq_enq_binary) +# define enif_ioq_enqv ERL_NIF_API_FUNC_MACRO(enif_ioq_enqv) +# define enif_ioq_size ERL_NIF_API_FUNC_MACRO(enif_ioq_size) +# define enif_ioq_deq ERL_NIF_API_FUNC_MACRO(enif_ioq_deq) +# define enif_ioq_peek ERL_NIF_API_FUNC_MACRO(enif_ioq_peek) +# define enif_inspect_iovec ERL_NIF_API_FUNC_MACRO(enif_inspect_iovec) +# define enif_free_iovec ERL_NIF_API_FUNC_MACRO(enif_free_iovec) /* ** ADD NEW ENTRIES HERE (before this comment) diff --git a/erts/emulator/beam/erl_node_tables.c b/erts/emulator/beam/erl_node_tables.c index f8e9fec27a..0f3dfa797c 100644 --- a/erts/emulator/beam/erl_node_tables.c +++ b/erts/emulator/beam/erl_node_tables.c @@ -29,6 +29,8 @@ #include "error.h" #include "erl_thr_progress.h" #include "dtrace-wrapper.h" +#include "erl_binary.h" +#include "erl_bif_unique.h" Hash erts_dist_table; Hash erts_node_table; @@ -57,6 +59,58 @@ static ErtsMonotonicTime node_tab_delete_delay; /* -- The distribution table ---------------------------------------------- */ +#define ErtsBin2DistEntry(B) \ + ((DistEntry *) ERTS_MAGIC_BIN_DATA((B))) +#define ErtsDistEntry2Bin(DEP) \ + ((Binary *) ERTS_MAGIC_BIN_FROM_DATA((DEP))) + +static ERTS_INLINE erts_aint_t +de_refc_read(DistEntry *dep, erts_aint_t min) +{ + return erts_refc_read(&ErtsDistEntry2Bin(dep)->intern.refc, min); +} + +static ERTS_INLINE erts_aint_t +de_refc_inc_read(DistEntry *dep, erts_aint_t min) +{ + return erts_refc_inctest(&ErtsDistEntry2Bin(dep)->intern.refc, min); +} + +static ERTS_INLINE void +de_refc_inc(DistEntry *dep, erts_aint_t min) +{ + erts_refc_inc(&ErtsDistEntry2Bin(dep)->intern.refc, min); +} + +static ERTS_INLINE void +de_refc_dec(DistEntry *dep, erts_aint_t min) +{ +#ifdef DEBUG + (void) erts_refc_read(&ErtsDistEntry2Bin(dep)->intern.refc, min+1); +#endif + erts_bin_release(ErtsDistEntry2Bin(dep)); +} + +static ERTS_INLINE erts_aint_t +de_refc_dec_read(DistEntry *dep, erts_aint_t min) +{ + return erts_refc_dectest(&ErtsDistEntry2Bin(dep)->intern.refc, min); +} + +void +erts_ref_dist_entry(DistEntry *dep) +{ + ASSERT(dep); + de_refc_inc(dep, 1); +} + +void +erts_deref_dist_entry(DistEntry *dep) +{ + ASSERT(dep); + de_refc_dec(dep, 0); +} + #ifdef DEBUG static int is_in_de_list(DistEntry *dep, DistEntry *dep_list) @@ -85,22 +139,39 @@ dist_table_cmp(void *dep1, void *dep2) static void* dist_table_alloc(void *dep_tmpl) { +#ifdef DEBUG + erts_aint_t refc; +#endif Eterm sysname; + Binary *bin; DistEntry *dep; erts_rwmtx_opt_t rwmtx_opt = ERTS_RWMTX_OPT_DEFAULT_INITER; rwmtx_opt.type = ERTS_RWMTX_TYPE_FREQUENT_READ; sysname = ((DistEntry *) dep_tmpl)->sysname; - dep = (DistEntry *) erts_alloc(ERTS_ALC_T_DIST_ENTRY, sizeof(DistEntry)); + + bin = erts_create_magic_binary_x(sizeof(DistEntry), + erts_dist_entry_destructor, + ERTS_ALC_T_DIST_ENTRY, + 0); + dep = ErtsBin2DistEntry(bin); dist_entries++; +#ifdef DEBUG + refc = +#else + (void) +#endif + de_refc_dec_read(dep, -1); + ASSERT(refc == -1); + dep->prev = NULL; - erts_refc_init(&dep->refc, -1); erts_rwmtx_init_opt(&dep->rwmtx, &rwmtx_opt, "dist_entry", sysname, ERTS_LOCK_FLAGS_CATEGORY_DISTRIBUTION); dep->sysname = sysname; dep->cid = NIL; + erts_atomic_init_nob(&dep->input_handler, (erts_aint_t) NIL); dep->connection_id = 0; dep->status = 0; dep->flags = 0; @@ -114,12 +185,16 @@ dist_table_alloc(void *dep_tmpl) erts_mtx_init(&dep->qlock, "dist_entry_out_queue", sysname, ERTS_LOCK_FLAGS_CATEGORY_DISTRIBUTION); - dep->qflgs = 0; - dep->qsize = 0; + erts_atomic32_init_nob(&dep->qflgs, 0); + erts_atomic_init_nob(&dep->qsize, 0); + erts_atomic64_init_nob(&dep->in, 0); + erts_atomic64_init_nob(&dep->out, 0); dep->out_queue.first = NULL; dep->out_queue.last = NULL; dep->suspended = NULL; + dep->tmp_out_queue.first = NULL; + dep->tmp_out_queue.last = NULL; dep->finalized_out_queue.first = NULL; dep->finalized_out_queue.last = NULL; @@ -181,7 +256,7 @@ dist_table_free(void *vdep) #ifdef DEBUG sys_memset(vdep, 0x77, sizeof(DistEntry)); #endif - erts_free(ERTS_ALC_T_DIST_ENTRY, (void *) dep); + erts_bin_free(ErtsDistEntry2Bin(dep)); ASSERT(dist_entries > 0); dist_entries--; @@ -199,19 +274,52 @@ erts_dist_table_info(fmtfn_t to, void *to_arg) erts_rwmtx_runlock(&erts_dist_table_rwmtx); } +static ERTS_INLINE DistEntry *find_dist_entry(Eterm sysname, + int inc_refc, + int connected_only) +{ + DistEntry *res; + DistEntry de; + de.sysname = sysname; + erts_rwmtx_rlock(&erts_dist_table_rwmtx); + res = hash_get(&erts_dist_table, (void *) &de); + if (res) { + if (connected_only && is_nil(res->cid)) + res = NULL; + else { + int pend_delete; + erts_aint_t refc; + if (inc_refc) { + refc = de_refc_inc_read(res, 1); + pend_delete = refc < 2; + } + else { + refc = de_refc_read(res, 0); + pend_delete = refc < 1; + } + if (pend_delete) /* Pending delete */ + de_refc_inc(res, 1); + } + } + erts_rwmtx_runlock(&erts_dist_table_rwmtx); + return res; +} + DistEntry * erts_channel_no_to_dist_entry(Uint cno) { + /* + * Does NOT increase reference count! + */ + /* * For this node (and previous incarnations of this node), * ERST_INTERNAL_CHANNEL_NO (will always be 0 I guess) is used as * channel no. For other nodes, the atom index of the atom corresponding * to the node name is used as channel no. */ - if(cno == ERST_INTERNAL_CHANNEL_NO) { - erts_refc_inc(&erts_this_dist_entry->refc, 2); + if (cno == ERST_INTERNAL_CHANNEL_NO) return erts_this_dist_entry; - } if((cno > MAX_ATOM_INDEX) || (cno >= atom_table_size()) @@ -220,80 +328,97 @@ erts_channel_no_to_dist_entry(Uint cno) /* cno is a valid atom index; find corresponding dist entry (if there is one) */ - return erts_find_dist_entry(make_atom(cno)); + return find_dist_entry(make_atom(cno), 0, 0); } - DistEntry * erts_sysname_to_connected_dist_entry(Eterm sysname) { - DistEntry de; - DistEntry *res_dep; - de.sysname = sysname; - - if(erts_this_dist_entry->sysname == sysname) { - erts_refc_inc(&erts_this_dist_entry->refc, 2); + /* + * Does NOT increase reference count! + */ + if(erts_this_dist_entry->sysname == sysname) return erts_this_dist_entry; - } - - erts_rwmtx_rlock(&erts_dist_table_rwmtx); - res_dep = (DistEntry *) hash_get(&erts_dist_table, (void *) &de); - if (res_dep) { - erts_aint_t refc = erts_refc_inctest(&res_dep->refc, 1); - if (refc < 2) /* Pending delete */ - erts_refc_inc(&res_dep->refc, 1); - } - erts_rwmtx_runlock(&erts_dist_table_rwmtx); - if (res_dep) { - int deref; - erts_rwmtx_rlock(&res_dep->rwmtx); - deref = is_nil(res_dep->cid); - erts_rwmtx_runlock(&res_dep->rwmtx); - if (deref) { - erts_deref_dist_entry(res_dep); - res_dep = NULL; - } - } - return res_dep; + return find_dist_entry(sysname, 0, 1); } DistEntry *erts_find_or_insert_dist_entry(Eterm sysname) { + /* + * This function DOES increase reference count! + */ DistEntry *res; DistEntry de; erts_aint_t refc; - res = erts_find_dist_entry(sysname); + res = find_dist_entry(sysname, 1, 0); if (res) return res; de.sysname = sysname; erts_rwmtx_rwlock(&erts_dist_table_rwmtx); res = hash_put(&erts_dist_table, (void *) &de); - refc = erts_refc_inctest(&res->refc, 0); + refc = de_refc_inc_read(res, 0); if (refc < 2) /* New or pending delete */ - erts_refc_inc(&res->refc, 1); + de_refc_inc(res, 1); erts_rwmtx_rwunlock(&erts_dist_table_rwmtx); return res; } DistEntry *erts_find_dist_entry(Eterm sysname) { - DistEntry *res; - DistEntry de; - de.sysname = sysname; - erts_rwmtx_rlock(&erts_dist_table_rwmtx); - res = hash_get(&erts_dist_table, (void *) &de); - if (res) { - erts_aint_t refc = erts_refc_inctest(&res->refc, 1); - if (refc < 2) /* Pending delete */ - erts_refc_inc(&res->refc, 1); - } - erts_rwmtx_runlock(&erts_dist_table_rwmtx); - return res; + /* + * Does NOT increase reference count! + */ + return find_dist_entry(sysname, 0, 0); } -static void try_delete_dist_entry(void *vdep) +DistEntry * +erts_dhandle_to_dist_entry(Eterm dhandle) { - DistEntry *dep = (DistEntry *) vdep; + Binary *bin; + if (!is_internal_magic_ref(dhandle)) + return NULL; + bin = erts_magic_ref2bin(dhandle); + if (ERTS_MAGIC_BIN_DESTRUCTOR(bin) != erts_dist_entry_destructor) + return NULL; + return ErtsBin2DistEntry(bin); +} + +Eterm +erts_make_dhandle(Process *c_p, DistEntry *dep) +{ + Binary *bin; + Eterm *hp; + + bin = ErtsDistEntry2Bin(dep); + ASSERT(bin); + ASSERT(ERTS_MAGIC_BIN_DESTRUCTOR(bin) == erts_dist_entry_destructor); + hp = HAlloc(c_p, ERTS_MAGIC_REF_THING_SIZE); + return erts_mk_magic_ref(&hp, &c_p->off_heap, bin); +} + +static void try_delete_dist_entry(void *vbin); + +static void +prepare_try_delete_dist_entry(void *vbin) +{ + Binary *bin = (Binary *) vbin; + DistEntry *dep = ErtsBin2DistEntry(bin); + Uint size; + erts_aint_t refc; + + refc = de_refc_read(dep, 0); + if (refc > 0) + return; + + size = ERTS_MAGIC_BIN_SIZE(sizeof(DistEntry)); + erts_schedule_thr_prgr_later_cleanup_op(try_delete_dist_entry, + vbin, &dep->later_op, size); +} + +static void try_delete_dist_entry(void *vbin) +{ + Binary *bin = (Binary *) vbin; + DistEntry *dep = ErtsBin2DistEntry(bin); erts_aint_t refc; erts_rwmtx_rwlock(&erts_dist_table_rwmtx); @@ -312,26 +437,39 @@ static void try_delete_dist_entry(void *vdep) * * If refc > 0, the entry is in use. Keep the entry. */ - refc = erts_refc_dectest(&dep->refc, -1); + refc = de_refc_dec_read(dep, -1); if (refc == -1) (void) hash_erase(&erts_dist_table, (void *) dep); erts_rwmtx_rwunlock(&erts_dist_table_rwmtx); - if (refc == 0) - erts_schedule_delete_dist_entry(dep); + if (refc == 0) { + if (node_tab_delete_delay == 0) + prepare_try_delete_dist_entry(vbin); + else if (node_tab_delete_delay > 0) + erts_start_timer_callback(node_tab_delete_delay, + prepare_try_delete_dist_entry, + vbin); + } } -void erts_schedule_delete_dist_entry(DistEntry *dep) +int erts_dist_entry_destructor(Binary *bin) { - ASSERT(dep != erts_this_dist_entry); - if (dep != erts_this_dist_entry) { - if (node_tab_delete_delay == 0) - try_delete_dist_entry((void *) dep); - else if (node_tab_delete_delay > 0) - erts_start_timer_callback(node_tab_delete_delay, - try_delete_dist_entry, - (void *) dep); - } + DistEntry *dep = ErtsBin2DistEntry(bin); + erts_aint_t refc; + + refc = de_refc_read(dep, -1); + + if (refc == -1) + return 1; /* Allow deallocation of structure... */ + + if (node_tab_delete_delay == 0) + prepare_try_delete_dist_entry((void *) bin); + else if (node_tab_delete_delay > 0) + erts_start_timer_callback(node_tab_delete_delay, + prepare_try_delete_dist_entry, + (void *) bin); + + return 0; } Uint @@ -384,7 +522,7 @@ erts_set_dist_entry_not_connected(DistEntry *dep) erts_rwmtx_rwlock(&erts_dist_table_rwmtx); ASSERT(dep != erts_this_dist_entry); - ASSERT(is_internal_port(dep->cid)); + ASSERT(is_internal_port(dep->cid) || is_internal_pid(dep->cid)); if(dep->flags & DFLAG_PUBLISHED) { if(dep->prev) { @@ -439,7 +577,7 @@ erts_set_dist_entry_connected(DistEntry *dep, Eterm cid, Uint flags) ASSERT(dep != erts_this_dist_entry); ASSERT(is_nil(dep->cid)); - ASSERT(is_internal_port(cid)); + ASSERT(is_internal_port(cid) || is_internal_pid(cid)); if(dep->prev) { ASSERT(is_in_de_list(dep, erts_not_connected_dist_entries)); @@ -459,10 +597,19 @@ erts_set_dist_entry_connected(DistEntry *dep, Eterm cid, Uint flags) dep->status |= ERTS_DE_SFLG_CONNECTED; dep->flags = flags; dep->cid = cid; + erts_atomic_set_nob(&dep->input_handler, + (erts_aint_t) cid); + dep->connection_id++; dep->connection_id &= ERTS_DIST_EXT_CON_ID_MASK; dep->prev = NULL; + erts_atomic64_set_nob(&dep->in, 0); + erts_atomic64_set_nob(&dep->out, 0); + erts_atomic32_set_nob(&dep->qflgs, + (is_internal_port(cid) + ? ERTS_DE_QFLG_PORT_CTRL + : ERTS_DE_QFLG_PROC_CTRL)); if(flags & DFLAG_PUBLISHED) { dep->next = erts_visible_dist_entries; if(erts_visible_dist_entries) { @@ -716,19 +863,18 @@ void erts_set_this_node(Eterm sysname, Uint creation) { ERTS_LC_ASSERT(erts_thr_progress_is_blocking()); - ASSERT(erts_refc_read(&erts_this_dist_entry->refc, 2)); + ASSERT(2 <= de_refc_read(erts_this_dist_entry, 2)); if (erts_refc_dectest(&erts_this_node->refc, 0) == 0) try_delete_node(erts_this_node); - if (erts_refc_dectest(&erts_this_dist_entry->refc, 0) == 0) - try_delete_dist_entry(erts_this_dist_entry); + erts_deref_dist_entry(erts_this_dist_entry); erts_this_node = NULL; /* to make sure refc is bumped for this node */ erts_this_node = erts_find_or_insert_node(sysname, creation); erts_this_dist_entry = erts_this_node->dist_entry; - erts_refc_inc(&erts_this_dist_entry->refc, 2); + erts_ref_dist_entry(erts_this_dist_entry); erts_this_node_sysname = erts_this_node_sysname_BUFFER; erts_snprintf(erts_this_node_sysname, sizeof(erts_this_node_sysname_BUFFER), @@ -797,9 +943,9 @@ void erts_init_node_tables(int dd_sec) ASSERT(erts_this_node->dist_entry != NULL); erts_this_dist_entry = erts_this_node->dist_entry; /* +1 for erts_this_dist_entry */ - /* +1 for erts_this_node->dist_entry */ - erts_refc_init(&erts_this_dist_entry->refc, 2); + erts_ref_dist_entry(erts_this_dist_entry); + ASSERT(2 == de_refc_read(erts_this_dist_entry, 2)); erts_this_node_sysname = erts_this_node_sysname_BUFFER; erts_snprintf(erts_this_node_sysname, sizeof(erts_this_node_sysname_BUFFER), @@ -876,6 +1022,7 @@ static Eterm AM_node_references; static Eterm AM_system; static Eterm AM_timer; static Eterm AM_delayed_delete_timer; +static Eterm AM_thread_progress_delete_timer; static void setup_reference_table(void); static Eterm reference_table_term(Uint **hpp, ErlOffHeap *ohp, Uint *szp); @@ -965,6 +1112,7 @@ erts_get_node_and_dist_references(struct process *proc) INIT_AM(timer); INIT_AM(system); INIT_AM(delayed_delete_timer); + INIT_AM(thread_progress_delete_timer); references_atoms_need_init = 0; } @@ -1148,6 +1296,10 @@ insert_offheap2(ErlOffHeap *oh, void *arg) insert_offheap(oh, a->type, a->id); } +#define ErtsIsDistEntryBinary(Bin) \ + (((Bin)->intern.flags & BIN_FLAG_MAGIC) \ + && ERTS_MAGIC_BIN_DESTRUCTOR((Bin)) == erts_dist_entry_destructor) + static void insert_offheap(ErlOffHeap *oh, int type, Eterm id) { @@ -1158,7 +1310,10 @@ insert_offheap(ErlOffHeap *oh, int type, Eterm id) for (u.hdr = oh->first; u.hdr; u.hdr = u.hdr->next) { switch (thing_subtag(u.hdr->thing_word)) { case REF_SUBTAG: - if(IsMatchProgBinary(u.mref->mb)) { + if (ErtsIsDistEntryBinary(u.mref->mb)) + insert_dist_entry(ErtsBin2DistEntry(u.mref->mb), + type, id, 0); + else if(IsMatchProgBinary(u.mref->mb)) { InsertedBin *ib; int insert_bin = 1; for (ib = inserted_bins; ib; ib = ib->next) @@ -1301,26 +1456,34 @@ insert_delayed_delete_node(void *state, ErtsMonotonicTime timeout_pos, void *vnp) { - DeclareTmpHeapNoproc(heap,3); - UseTmpHeapNoproc(3); + Eterm heap[3]; insert_node((ErlNode *) vnp, SYSTEM_REF, TUPLE2(&heap[0], AM_system, AM_delayed_delete_timer)); - UnUseTmpHeapNoproc(3); +} + +static void +insert_thr_prgr_delete_dist_entry(void *arg, ErtsThrPrgrVal thr_prgr, void *vbin) +{ + DistEntry *dep = ErtsBin2DistEntry(vbin); + Eterm heap[3]; + insert_dist_entry(dep, + SYSTEM_REF, + TUPLE2(&heap[0], AM_system, AM_thread_progress_delete_timer), + 0); } static void insert_delayed_delete_dist_entry(void *state, ErtsMonotonicTime timeout_pos, - void *vdep) + void *vbin) { - DeclareTmpHeapNoproc(heap,3); - UseTmpHeapNoproc(3); - insert_dist_entry((DistEntry *) vdep, + DistEntry *dep = ErtsBin2DistEntry(vbin); + Eterm heap[3]; + insert_dist_entry(dep, SYSTEM_REF, TUPLE2(&heap[0], AM_system, AM_delayed_delete_timer), 0); - UnUseTmpHeapNoproc(3); } static void @@ -1354,9 +1517,12 @@ setup_reference_table(void) erts_debug_callback_timer_foreach(try_delete_node, insert_delayed_delete_node, NULL); - erts_debug_callback_timer_foreach(try_delete_dist_entry, + erts_debug_callback_timer_foreach(prepare_try_delete_dist_entry, insert_delayed_delete_dist_entry, NULL); + erts_debug_later_op_foreach(try_delete_dist_entry, + insert_thr_prgr_delete_dist_entry, + NULL); UseTmpHeapNoproc(3); insert_node(erts_this_node, @@ -1421,6 +1587,14 @@ setup_reference_table(void) insert_links(ERTS_P_LINKS(proc), proc->common.id); if (ERTS_P_MONITORS(proc)) insert_monitors(ERTS_P_MONITORS(proc), proc->common.id); + { + DistEntry *dep = ERTS_PROC_GET_DIST_ENTRY(proc); + if (dep) + insert_dist_entry(dep, + CTRL_REF, + proc->common.id, + 0); + } } } @@ -1719,7 +1893,7 @@ reference_table_term(Uint **hpp, ErlOffHeap *ohp, Uint *szp) /* DistList = [{Dist, Refc, ReferenceIdList}] */ tup = MK_3TUP(referred_dists[i].dist->sysname, - MK_UINT(erts_refc_read(&referred_dists[i].dist->refc, 0)), + MK_UINT(de_refc_read(referred_dists[i].dist, 0)), dril); dl = MK_CONS(tup, dl); } diff --git a/erts/emulator/beam/erl_node_tables.h b/erts/emulator/beam/erl_node_tables.h index 7974b25444..3bba673435 100644 --- a/erts/emulator/beam/erl_node_tables.h +++ b/erts/emulator/beam/erl_node_tables.h @@ -47,6 +47,9 @@ #define ERTS_PORT_TASK_ONLY_BASIC_TYPES__ #include "erl_port_task.h" #undef ERTS_PORT_TASK_ONLY_BASIC_TYPES__ +#define ERTS_BINARY_TYPES_ONLY__ +#include "erl_binary.h" +#undef ERTS_BINARY_TYPES_ONLY__ #define ERTS_NODE_TAB_DELAY_GC_DEFAULT (60) #define ERTS_NODE_TAB_DELAY_GC_MAX (100*1000*1000) @@ -60,11 +63,17 @@ #define ERTS_DE_SFLGS_ALL (ERTS_DE_SFLG_CONNECTED \ | ERTS_DE_SFLG_EXITING) -#define ERTS_DE_QFLG_BUSY (((Uint32) 1) << 0) -#define ERTS_DE_QFLG_EXIT (((Uint32) 1) << 1) +#define ERTS_DE_QFLG_BUSY (((erts_aint32_t) 1) << 0) +#define ERTS_DE_QFLG_EXIT (((erts_aint32_t) 1) << 1) +#define ERTS_DE_QFLG_REQ_INFO (((erts_aint32_t) 1) << 2) +#define ERTS_DE_QFLG_PORT_CTRL (((erts_aint32_t) 1) << 3) +#define ERTS_DE_QFLG_PROC_CTRL (((erts_aint32_t) 1) << 4) #define ERTS_DE_QFLGS_ALL (ERTS_DE_QFLG_BUSY \ - | ERTS_DE_QFLG_EXIT) + | ERTS_DE_QFLG_EXIT \ + | ERTS_DE_QFLG_REQ_INFO \ + | ERTS_DE_QFLG_PORT_CTRL \ + | ERTS_DE_QFLG_PROC_CTRL) #if defined(ARCH_64) #define ERTS_DIST_OUTPUT_BUF_DBG_PATTERN ((Uint) 0xf713f713f713f713UL) @@ -106,12 +115,13 @@ typedef struct dist_entry_ { HashBucket hash_bucket; /* Hash bucket */ struct dist_entry_ *next; /* Next entry in dist_table (not sorted) */ struct dist_entry_ *prev; /* Previous entry in dist_table (not sorted) */ - erts_refc_t refc; /* Reference count */ - erts_rwmtx_t rwmtx; /* Protects all fields below until lck_mtx. */ + erts_rwmtx_t rwmtx; /* Protects all fields below until lck_mtx. */ Eterm sysname; /* name@host atom for efficiency */ Uint32 creation; /* creation of connected node */ - Eterm cid; /* connection handler (pid or port), NIL == free */ + erts_atomic_t input_handler; /* Input handler */ + Eterm cid; /* connection handler (pid or port), + NIL == free */ Uint32 connection_id; /* Connection id incremented on connect */ Uint32 status; /* Slot status, like exiting reserved etc */ Uint32 flags; /* Distribution flags, like hidden, @@ -119,7 +129,7 @@ typedef struct dist_entry_ { unsigned long version; /* Protocol version */ - erts_mtx_t lnk_mtx; /* Protects node_links, nlinks, and + erts_mtx_t lnk_mtx; /* Protects node_links, nlinks, and monitors. */ ErtsLink *node_links; /* In a dist entry, node links are kept in a separate tree, while they are @@ -131,12 +141,15 @@ typedef struct dist_entry_ { ErtsLink *nlinks; /* Link tree with subtrees */ ErtsMonitor *monitors; /* Monitor tree */ - erts_mtx_t qlock; /* Protects qflgs and out_queue */ - Uint32 qflgs; - Sint qsize; + erts_mtx_t qlock; /* Protects qflgs and out_queue */ + erts_atomic32_t qflgs; + erts_atomic_t qsize; + erts_atomic64_t in; + erts_atomic64_t out; ErtsDistOutputQueue out_queue; struct ErtsProcList_ *suspended; + ErtsDistOutputQueue tmp_out_queue; ErtsDistOutputQueue finalized_out_queue; erts_atomic_t dist_cmd_scheduled; ErtsPortTaskHandle dist_cmd; @@ -144,6 +157,8 @@ typedef struct dist_entry_ { Uint (*send)(Port *prt, ErtsDistOutputBuf *obuf); struct cache* cache; /* The atom cache */ + + ErtsThrPrgrLaterOp later_op; } DistEntry; typedef struct erl_node_ { @@ -193,12 +208,12 @@ Eterm erts_get_node_and_dist_references(struct process *); int erts_lc_is_de_rwlocked(DistEntry *); int erts_lc_is_de_rlocked(DistEntry *); #endif +int erts_dist_entry_destructor(Binary *bin); +DistEntry *erts_dhandle_to_dist_entry(Eterm dhandle); +Eterm erts_make_dhandle(Process *c_p, DistEntry *dep); +void erts_ref_dist_entry(DistEntry *dep); +void erts_deref_dist_entry(DistEntry *dep); -#ifdef ERTS_ENABLE_LOCK_COUNT -void erts_lcnt_update_distribution_locks(int enable); -#endif - -ERTS_GLB_INLINE void erts_deref_dist_entry(DistEntry *dep); ERTS_GLB_INLINE void erts_deref_node_entry(ErlNode *np); ERTS_GLB_INLINE void erts_de_rlock(DistEntry *dep); ERTS_GLB_INLINE void erts_de_runlock(DistEntry *dep); @@ -210,14 +225,6 @@ ERTS_GLB_INLINE void erts_de_links_unlock(DistEntry *dep); #if ERTS_GLB_INLINE_INCL_FUNC_DEF ERTS_GLB_INLINE void -erts_deref_dist_entry(DistEntry *dep) -{ - ASSERT(dep); - if (erts_refc_dectest(&dep->refc, 0) == 0) - erts_schedule_delete_dist_entry(dep); -} - -ERTS_GLB_INLINE void erts_deref_node_entry(ErlNode *np) { ASSERT(np); diff --git a/erts/emulator/beam/erl_port.h b/erts/emulator/beam/erl_port.h index 98e9b9ccaf..9117eb1f72 100644 --- a/erts/emulator/beam/erl_port.h +++ b/erts/emulator/beam/erl_port.h @@ -31,6 +31,9 @@ typedef struct ErtsProc2PortSigData_ ErtsProc2PortSigData; #include "erl_ptab.h" #include "erl_thr_progress.h" #include "erl_trace.h" +#define ERTS_IO_QUEUE_TYPES_ONLY__ +#include "erl_io_queue.h" +#undef ERTS_IO_QUEUE_TYPES_ONLY__ #ifndef __WIN32__ #define ERTS_DEFAULT_MAX_PORTS (1 << 16) @@ -75,23 +78,8 @@ typedef struct erts_driver_t_ erts_driver_t; #define ERTS_Port2ErlDrvPort(PH) ((ErlDrvPort) (PH)) #endif -#define SMALL_IO_QUEUE 5 /* Number of fixed elements */ +typedef ErtsIOQueue ErlPortIOQueue; -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 */ @@ -165,7 +153,7 @@ struct _erl_drv_port { Uint bytes_in; /* Number of bytes read */ Uint bytes_out; /* Number of bytes written */ - ErlIOQueue ioq; /* driver accessible i/o queue */ + ErlPortIOQueue 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; diff --git a/erts/emulator/beam/erl_process.c b/erts/emulator/beam/erl_process.c index c29b13c6c1..ab5030e5b9 100644 --- a/erts/emulator/beam/erl_process.c +++ b/erts/emulator/beam/erl_process.c @@ -776,6 +776,11 @@ erts_pre_init_process(void) = ERTS_PSD_ETS_FIXED_TABLES_GET_LOCKS; erts_psd_required_locks[ERTS_PSD_ETS_FIXED_TABLES].set_locks = ERTS_PSD_ETS_FIXED_TABLES_SET_LOCKS; + + erts_psd_required_locks[ERTS_PSD_DIST_ENTRY].get_locks + = ERTS_PSD_DIST_ENTRY_GET_LOCKS; + erts_psd_required_locks[ERTS_PSD_DIST_ENTRY].set_locks + = ERTS_PSD_DIST_ENTRY_SET_LOCKS; #endif } @@ -13082,7 +13087,6 @@ static void doit_exit_monitor(ErtsMonitor *mon, void *vpcontext) } erts_destroy_monitor(rmon); } - erts_deref_dist_entry(dep); } } else { ASSERT(is_pid(mon->u.pid) || is_port(mon->u.pid)); @@ -13322,7 +13326,6 @@ static void doit_exit_link(ErtsLink *lnk, void *vpcontext) erts_de_links_unlock(dep); if (rlnk) erts_destroy_link(rlnk); - erts_deref_dist_entry(dep); } break; @@ -13430,7 +13433,7 @@ erts_continue_exit_process(Process *p) ErtsMonitor *mon; ErtsProcLocks curr_locks = ERTS_PROC_LOCK_MAIN; Eterm reason = p->fvalue; - DistEntry *dep; + DistEntry *dep = NULL; erts_aint32_t state; int delay_del_proc = 0; @@ -13631,13 +13634,16 @@ erts_continue_exit_process(Process *p) if (refc_inced && !(n & ERTS_PSFLG_IN_RUNQ)) erts_proc_dec_refc(p); } - - dep = (p->flags & F_DISTRIBUTION) ? erts_this_dist_entry : NULL; + + dep = ((p->flags & F_DISTRIBUTION) + ? ERTS_PROC_SET_DIST_ENTRY(p, NULL) + : NULL); erts_proc_unlock(p, ERTS_PROC_LOCKS_ALL); if (dep) { - erts_do_net_exits(dep, reason); + erts_do_net_exits(dep, (reason == am_kill) ? am_killed : reason); + erts_deref_dist_entry(dep); } /* @@ -14045,3 +14051,24 @@ erts_dbg_check_halloc_lock(Process *p) return 0; } #endif + +void +erts_debug_later_op_foreach(void (*callback)(void*), + void (*func)(void *, ErtsThrPrgrVal, void *), + void *arg) +{ + int six; + if (!erts_thr_progress_is_blocking()) + ERTS_INTERNAL_ERROR("Not blocking thread progress"); + + for (six = 0; six < erts_no_schedulers; six++) { + ErtsSchedulerData *esdp = &erts_aligned_scheduler_data[six].esd; + ErtsThrPrgrLaterOp *lop = esdp->aux_work_data.later_op.first; + + while (lop) { + if (lop->func == callback) + func(arg, lop->later, lop->data); + lop = lop->next; + } + } +} diff --git a/erts/emulator/beam/erl_process.h b/erts/emulator/beam/erl_process.h index 7ca37882c2..150f22556c 100644 --- a/erts/emulator/beam/erl_process.h +++ b/erts/emulator/beam/erl_process.h @@ -697,6 +697,11 @@ extern ErtsAlignedSchedulerData *erts_aligned_dirty_io_scheduler_data; int erts_lc_runq_is_locked(ErtsRunQueue *); #endif +void +erts_debug_later_op_foreach(void (*callback)(void*), + void (*func)(void *, ErtsThrPrgrVal, void *), + void *arg); + #ifdef ERTS_INCLUDE_SCHEDULER_INTERNALS void erts_empty_runq(ErtsRunQueue *rq); @@ -803,14 +808,15 @@ erts_reset_max_len(ErtsRunQueue *rq, ErtsRunQueueInfo *rqi) #define ERTS_PSD_NIF_TRAP_EXPORT 5 #define ERTS_PSD_ETS_OWNED_TABLES 6 #define ERTS_PSD_ETS_FIXED_TABLES 7 -#define ERTS_PSD_SUSPENDED_SAVED_CALLS_BUF 8 +#define ERTS_PSD_DIST_ENTRY 8 +#define ERTS_PSD_SUSPENDED_SAVED_CALLS_BUF 9 /* keep last... */ -#define ERTS_PSD_SIZE 9 +#define ERTS_PSD_SIZE 10 #if !defined(HIPE) # undef ERTS_PSD_SUSPENDED_SAVED_CALLS_BUF # undef ERTS_PSD_SIZE -# define ERTS_PSD_SIZE 8 +# define ERTS_PSD_SIZE 9 #endif typedef struct { @@ -844,6 +850,9 @@ typedef struct { #define ERTS_PSD_ETS_FIXED_TABLES_GET_LOCKS ERTS_PROC_LOCK_MAIN #define ERTS_PSD_ETS_FIXED_TABLES_SET_LOCKS ERTS_PROC_LOCK_MAIN +#define ERTS_PSD_DIST_ENTRY_GET_LOCKS ERTS_PROC_LOCK_MAIN +#define ERTS_PSD_DIST_ENTRY_SET_LOCKS ERTS_PROC_LOCK_MAIN + typedef struct { ErtsProcLocks get_locks; ErtsProcLocks set_locks; @@ -2041,6 +2050,11 @@ erts_psd_set(Process *p, int ix, void *data) #define ERTS_PROC_SET_NIF_TRAP_EXPORT(P, NTE) \ erts_psd_set((P), ERTS_PSD_NIF_TRAP_EXPORT, (void *) (NTE)) +#define ERTS_PROC_GET_DIST_ENTRY(P) \ + ((DistEntry *) erts_psd_get((P), ERTS_PSD_DIST_ENTRY)) +#define ERTS_PROC_SET_DIST_ENTRY(P, DE) \ + ((DistEntry *) erts_psd_set((P), ERTS_PSD_DIST_ENTRY, (void *) (DE))) + #ifdef HIPE #define ERTS_PROC_GET_SUSPENDED_SAVED_CALLS_BUF(P) \ ((struct saved_calls *) erts_psd_get((P), ERTS_PSD_SUSPENDED_SAVED_CALLS_BUF)) diff --git a/erts/emulator/beam/erl_time.h b/erts/emulator/beam/erl_time.h index ccc5526664..27164d50a0 100644 --- a/erts/emulator/beam/erl_time.h +++ b/erts/emulator/beam/erl_time.h @@ -130,6 +130,13 @@ Eterm erts_get_monotonic_end_time(struct process *c_p); Eterm erts_monotonic_time_source(struct process*c_p); Eterm erts_system_time_source(struct process*c_p); +void erts_runtime_elapsed_both(ErtsMonotonicTime *ms_user, + ErtsMonotonicTime *ms_sys, + ErtsMonotonicTime *ms_user_diff, + ErtsMonotonicTime *ms_sys_diff); +void erts_wall_clock_elapsed_both(ErtsMonotonicTime *total, + ErtsMonotonicTime *diff); + #ifdef SYS_CLOCK_RESOLUTION #define ERTS_CLKTCK_RESOLUTION ((ErtsMonotonicTime) (SYS_CLOCK_RESOLUTION*1000)) #else diff --git a/erts/emulator/beam/erl_time_sup.c b/erts/emulator/beam/erl_time_sup.c index c06b464458..f2e0900fec 100644 --- a/erts/emulator/beam/erl_time_sup.c +++ b/erts/emulator/beam/erl_time_sup.c @@ -36,12 +36,29 @@ #include "erl_driver.h" #include "erl_nif.h" -static erts_mtx_t erts_timeofday_mtx; static erts_mtx_t erts_get_time_mtx; -static SysTimes t_start; /* Used in elapsed_time_both */ -static ErtsMonotonicTime prev_wall_clock_elapsed; /* Used in wall_clock_elapsed_time_both */ -static ErtsMonotonicTime previous_now; /* Used in get_now */ + /* used by erts_runtime_elapsed_both */ +typedef struct { + erts_mtx_t mtx; + ErtsMonotonicTime user; + ErtsMonotonicTime sys; +} ErtsRunTimePrevData; + +static union { + ErtsRunTimePrevData data; + char align__[ERTS_ALC_CACHE_LINE_ALIGN_SIZE(sizeof(ErtsRunTimePrevData))]; +} runtime_prev erts_align_attribute(ERTS_CACHE_LINE_SIZE); + +static union { + erts_atomic64_t time; + char align__[ERTS_ALC_CACHE_LINE_ALIGN_SIZE(sizeof(erts_atomic64_t))]; +} wall_clock_prev erts_align_attribute(ERTS_CACHE_LINE_SIZE); + +static union { + erts_atomic64_t time; + char align__[ERTS_ALC_CACHE_LINE_ALIGN_SIZE(sizeof(erts_atomic64_t))]; +} now_prev erts_align_attribute(ERTS_CACHE_LINE_SIZE); static ErtsMonitor *time_offset_monitors = NULL; static Uint no_time_offset_monitors = 0; @@ -954,10 +971,12 @@ erts_init_time_sup(int time_correction, ErtsTimeWarpMode time_warp_mode) ASSERT(ERTS_MONOTONIC_TIME_MIN < ERTS_MONOTONIC_TIME_MAX); - erts_mtx_init(&erts_timeofday_mtx, "timeofday", NIL, - ERTS_LOCK_FLAGS_PROPERTY_STATIC | ERTS_LOCK_FLAGS_CATEGORY_GENERIC); erts_mtx_init(&erts_get_time_mtx, "get_time", NIL, ERTS_LOCK_FLAGS_PROPERTY_STATIC | ERTS_LOCK_FLAGS_CATEGORY_GENERIC); + erts_mtx_init(&runtime_prev.data.mtx, "runtime", NIL, + ERTS_LOCK_FLAGS_PROPERTY_STATIC | ERTS_LOCK_FLAGS_CATEGORY_GENERIC); + runtime_prev.data.user = 0; + runtime_prev.data.sys = 0; time_sup.r.o.correction = time_correction; time_sup.r.o.warp_mode = time_warp_mode; @@ -1157,9 +1176,13 @@ erts_init_time_sup(int time_correction, ErtsTimeWarpMode time_warp_mode) time_sup.f.c.last_not_corrected_time = 0; } - prev_wall_clock_elapsed = 0; + erts_atomic64_init_nob(&wall_clock_prev.time, + (erts_aint64_t) 0); + + erts_atomic64_init_nob( + &now_prev.time, + (erts_aint64_t) ERTS_MONOTONIC_TO_USEC(get_time_offset())); - previous_now = ERTS_MONOTONIC_TO_USEC(get_time_offset()); #ifdef DEBUG time_sup_initialized = 1; @@ -1289,36 +1312,65 @@ erts_finalize_time_offset(void) /* info functions */ void -elapsed_time_both(ErtsMonotonicTime *ms_user, ErtsMonotonicTime *ms_sys, - ErtsMonotonicTime *ms_user_diff, ErtsMonotonicTime *ms_sys_diff) +erts_runtime_elapsed_both(ErtsMonotonicTime *ms_user, ErtsMonotonicTime *ms_sys, + ErtsMonotonicTime *ms_user_diff, ErtsMonotonicTime *ms_sys_diff) { - ErtsMonotonicTime prev_total_user, prev_total_sys; - ErtsMonotonicTime total_user, total_sys; + ErtsMonotonicTime prev_user, prev_sys, user, sys; + +#ifdef HAVE_GETRUSAGE + + struct rusage now; + + if (getrusage(RUSAGE_SELF, &now) != 0) { + erts_exit(ERTS_ABORT_EXIT, "getrusage(RUSAGE_SELF, _) failed: %d\n", errno); + return; + } + + user = (ErtsMonotonicTime) now.ru_utime.tv_sec; + user *= (ErtsMonotonicTime) 1000000; + user += (ErtsMonotonicTime) now.ru_utime.tv_usec; + user /= (ErtsMonotonicTime) 1000; + + sys = (ErtsMonotonicTime) now.ru_stime.tv_sec; + sys *= (ErtsMonotonicTime) 1000000; + sys += (ErtsMonotonicTime) now.ru_stime.tv_usec; + sys /= (ErtsMonotonicTime) 1000; + +#else + SysTimes now; sys_times(&now); - total_user = (ErtsMonotonicTime) ((now.tms_utime * 1000) / SYS_CLK_TCK); - total_sys = (ErtsMonotonicTime) ((now.tms_stime * 1000) / SYS_CLK_TCK); + user = (ErtsMonotonicTime) now.tms_utime; + user *= (ErtsMonotonicTime) 1000; + user /= (ErtsMonotonicTime) SYS_CLK_TCK; - if (ms_user != NULL) - *ms_user = total_user; - if (ms_sys != NULL) - *ms_sys = total_sys; + sys = (ErtsMonotonicTime) now.tms_stime; + sys *= (ErtsMonotonicTime) 1000; + sys /= (ErtsMonotonicTime) SYS_CLK_TCK; + +#endif + + if (ms_user) + *ms_user = user; + if (ms_sys) + *ms_sys = sys; if (ms_user_diff || ms_sys_diff) { - erts_mtx_lock(&erts_timeofday_mtx); - - prev_total_user = (ErtsMonotonicTime) ((t_start.tms_utime * 1000) / SYS_CLK_TCK); - prev_total_sys = (ErtsMonotonicTime) ((t_start.tms_stime * 1000) / SYS_CLK_TCK); - t_start = now; - - erts_mtx_unlock(&erts_timeofday_mtx); + + erts_mtx_lock(&runtime_prev.data.mtx); - if (ms_user_diff != NULL) - *ms_user_diff = total_user - prev_total_user; - - if (ms_sys_diff != NULL) - *ms_sys_diff = total_sys - prev_total_sys; + prev_user = runtime_prev.data.user; + prev_sys = runtime_prev.data.sys; + runtime_prev.data.user = user; + runtime_prev.data.sys = sys; + + erts_mtx_unlock(&runtime_prev.data.mtx); + + if (ms_user_diff) + *ms_user_diff = user - prev_user; + if (ms_sys_diff) + *ms_sys_diff = sys - prev_sys; } } @@ -1326,7 +1378,7 @@ elapsed_time_both(ErtsMonotonicTime *ms_user, ErtsMonotonicTime *ms_sys, /* wall clock routines */ void -wall_clock_elapsed_time_both(ErtsMonotonicTime *ms_total, ErtsMonotonicTime *ms_diff) +erts_wall_clock_elapsed_both(ErtsMonotonicTime *ms_total, ErtsMonotonicTime *ms_diff) { ErtsMonotonicTime now, elapsed; @@ -1334,16 +1386,18 @@ wall_clock_elapsed_time_both(ErtsMonotonicTime *ms_total, ErtsMonotonicTime *ms_ update_last_mtime(NULL, now); elapsed = ERTS_MONOTONIC_TO_MSEC(now); + elapsed -= ERTS_MONOTONIC_TO_MSEC(ERTS_MONOTONIC_BEGIN); *ms_total = elapsed; if (ms_diff) { - erts_mtx_lock(&erts_timeofday_mtx); + ErtsMonotonicTime prev; - *ms_diff = elapsed - prev_wall_clock_elapsed; - prev_wall_clock_elapsed = elapsed; + prev = ((ErtsMonotonicTime) + erts_atomic64_xchg_mb(&wall_clock_prev.time, + (erts_aint64_t) elapsed)); - erts_mtx_unlock(&erts_timeofday_mtx); + *ms_diff = elapsed - prev; } } @@ -1722,22 +1776,27 @@ univ_to_local(Sint *year, Sint *month, Sint *day, void get_now(Uint* megasec, Uint* sec, Uint* microsec) { - ErtsMonotonicTime now_megasec, now_sec, now, mtime, time_offset; + ErtsMonotonicTime now_megasec, now_sec, now, prev, mtime, time_offset; mtime = time_sup.r.o.get_time(); time_offset = get_time_offset(); update_last_mtime(NULL, mtime); now = ERTS_MONOTONIC_TO_USEC(mtime + time_offset); - erts_mtx_lock(&erts_timeofday_mtx); - /* Make sure now time is later than last time */ - if (now <= previous_now) - now = previous_now + 1; - - previous_now = now; - - erts_mtx_unlock(&erts_timeofday_mtx); + prev = erts_atomic64_read_nob(&now_prev.time); + while (1) { + ErtsMonotonicTime act; + if (now <= prev) + now = prev + 1; + act = ((ErtsMonotonicTime) + erts_atomic64_cmpxchg_mb(&now_prev.time, + (erts_aint64_t) now, + (erts_aint64_t) prev)); + if (act == prev) + break; + prev = act; + } now_megasec = now / ERTS_MONOTONIC_TIME_TERA; now_sec = now / ERTS_MONOTONIC_TIME_MEGA; diff --git a/erts/emulator/beam/external.c b/erts/emulator/beam/external.c index 0874be7250..1c2f8f9843 100644 --- a/erts/emulator/beam/external.c +++ b/erts/emulator/beam/external.c @@ -616,7 +616,7 @@ erts_make_dist_ext_copy(ErtsDistExternal *edep, Uint xsize) sys_memcpy((void *) ep, (void *) edep, dist_ext_sz); ep += dist_ext_sz; if (new_edep->dep) - erts_refc_inc(&new_edep->dep->refc, 1); + erts_ref_dist_entry(new_edep->dep); new_edep->extp = ep; new_edep->ext_endp = ep + ext_sz; new_edep->heap_size = -1; @@ -629,7 +629,8 @@ erts_prepare_dist_ext(ErtsDistExternal *edep, byte *ext, Uint size, DistEntry *dep, - ErtsAtomCache *cache) + ErtsAtomCache *cache, + Uint32 *connection_id) { #undef ERTS_EXT_FAIL #undef ERTS_EXT_HDR_FAIL @@ -650,33 +651,36 @@ erts_prepare_dist_ext(ErtsDistExternal *edep, if (size < 2) ERTS_EXT_FAIL; + if (!dep) + ERTS_INTERNAL_ERROR("Invalid use"); + if (ep[0] != VERSION_MAGIC) { erts_dsprintf_buf_t *dsbufp = erts_create_logger_dsbuf(); - if (dep) - erts_dsprintf(dsbufp, - "** Got message from incompatible erlang on " - "channel %d\n", - dist_entry_channel_no(dep)); - else - erts_dsprintf(dsbufp, - "** Attempt to convert old incompatible " - "binary %d\n", - *ep); + erts_dsprintf(dsbufp, + "** Got message from incompatible erlang on " + "channel %d\n", + dist_entry_channel_no(dep)); erts_send_error_to_logger_nogl(dsbufp); ERTS_EXT_FAIL; } edep->flags = 0; edep->dep = dep; - if (dep) { - erts_de_rlock(dep); - if (dep->flags & DFLAG_DIST_HDR_ATOM_CACHE) - edep->flags |= ERTS_DIST_EXT_DFLAG_HDR; - - edep->flags |= (dep->connection_id & ERTS_DIST_EXT_CON_ID_MASK); - erts_de_runlock(dep); + + erts_de_rlock(dep); + + if ((dep->status & (ERTS_DE_SFLG_EXITING|ERTS_DE_SFLG_CONNECTED)) + != ERTS_DE_SFLG_CONNECTED) { + erts_de_runlock(dep); + return ERTS_PREP_DIST_EXT_CLOSED; } + if (dep->flags & DFLAG_DIST_HDR_ATOM_CACHE) + edep->flags |= ERTS_DIST_EXT_DFLAG_HDR; + + *connection_id = dep->connection_id; + edep->flags |= (dep->connection_id & ERTS_DIST_EXT_CON_ID_MASK); + if (ep[1] != DIST_HEADER) { if (edep->flags & ERTS_DIST_EXT_DFLAG_HDR) ERTS_EXT_HDR_FAIL; @@ -835,14 +839,15 @@ erts_prepare_dist_ext(ErtsDistExternal *edep, ERTS_EXT_FAIL; #endif - return 0; + erts_de_runlock(dep); + + return ERTS_PREP_DIST_EXT_SUCCESS; #undef CHKSIZE #undef ERTS_EXT_FAIL #undef ERTS_EXT_HDR_FAIL - bad_hdr: - if (dep) { + bad_hdr: { erts_dsprintf_buf_t *dsbufp = erts_create_logger_dsbuf(); erts_dsprintf(dsbufp, "%T got a corrupted distribution header from %T " @@ -855,10 +860,11 @@ erts_prepare_dist_ext(ErtsDistExternal *edep, erts_dsprintf(dsbufp, ">>"); erts_send_warning_to_logger_nogl(dsbufp); } - fail: - if (dep) - erts_kill_dist_connection(dep, dep->connection_id); - return -1; + fail: { + erts_de_runlock(dep); + erts_kill_dist_connection(dep, *connection_id); + } + return ERTS_PREP_DIST_EXT_FAILED; } static void diff --git a/erts/emulator/beam/external.h b/erts/emulator/beam/external.h index f00426cc16..3c61d013da 100644 --- a/erts/emulator/beam/external.h +++ b/erts/emulator/beam/external.h @@ -185,8 +185,13 @@ ERTS_GLB_INLINE void *erts_dist_ext_trailer(ErtsDistExternal *); ErtsDistExternal *erts_make_dist_ext_copy(ErtsDistExternal *, Uint); void *erts_dist_ext_trailer(ErtsDistExternal *); void erts_destroy_dist_ext_copy(ErtsDistExternal *); + +#define ERTS_PREP_DIST_EXT_FAILED (-1) +#define ERTS_PREP_DIST_EXT_SUCCESS (0) +#define ERTS_PREP_DIST_EXT_CLOSED (1) + int erts_prepare_dist_ext(ErtsDistExternal *, byte *, Uint, - DistEntry *, ErtsAtomCache *); + DistEntry *, ErtsAtomCache *, Uint32 *); Sint erts_decode_dist_ext_size(ErtsDistExternal *); Eterm erts_decode_dist_ext(ErtsHeapFactory* factory, ErtsDistExternal *); diff --git a/erts/emulator/beam/global.h b/erts/emulator/beam/global.h index 27a6202bb7..c72ae32f2c 100644 --- a/erts/emulator/beam/global.h +++ b/erts/emulator/beam/global.h @@ -1386,7 +1386,7 @@ Uint erts_current_reductions(Process* current, Process *p); int erts_print_system_version(fmtfn_t to, void *arg, Process *c_p); -int erts_hibernate(Process* c_p, Eterm module, Eterm function, Eterm args, Eterm* reg); +int erts_hibernate(Process* c_p, Eterm* reg); ERTS_GLB_FORCE_INLINE int erts_is_literal(Eterm tptr, Eterm *ptr); diff --git a/erts/emulator/beam/instrs.tab b/erts/emulator/beam/instrs.tab index 1af01e53bd..b79b960fd7 100644 --- a/erts/emulator/beam/instrs.tab +++ b/erts/emulator/beam/instrs.tab @@ -110,15 +110,11 @@ i_call_only(CallDest) { $DISPATCH($CallDest); } -i_move_call_only(CallDest, Src) { +move_call_only(Src, CallDest) { x(0) = $Src; $i_call_only($CallDest); } -move_call_only(Src, CallDest) { - $i_move_call_only($CallDest, $Src); -} - DISPATCHX(Dest) { //| -no_next DTRACE_GLOBAL_CALL_FROM_EXPORT(c_p, $Dest); @@ -156,10 +152,10 @@ i_move_call_ext_last(Dest, StackOffset, Src) { $i_call_ext_last($Dest, $StackOffset); } -APPLY(I, Deallocate) { +APPLY(I, Deallocate, Next) { //| -no_next HEAVY_SWAPOUT; - next = apply(c_p, r(0), x(1), x(2), reg, $I, $Deallocate); + $Next = apply(c_p, reg, $I, $Deallocate); HEAVY_SWAPIN; } @@ -170,8 +166,8 @@ HANDLE_APPLY_ERROR() { i_apply() { BeamInstr *next; - $APPLY(NULL, 0); - if (next != NULL) { + $APPLY(NULL, 0, next); + if (ERTS_LIKELY(next != NULL)) { $i_call(next); } $HANDLE_APPLY_ERROR(); @@ -179,8 +175,8 @@ i_apply() { i_apply_last(Deallocate) { BeamInstr *next; - $APPLY(I, $Deallocate); - if (next != NULL) { + $APPLY(I, $Deallocate, next); + if (ERTS_LIKELY(next != NULL)) { $i_call_last(next, $Deallocate); } $HANDLE_APPLY_ERROR(); @@ -188,24 +184,24 @@ i_apply_last(Deallocate) { i_apply_only() { BeamInstr *next; - $APPLY(I, 0); - if (next != NULL) { + $APPLY(I, 0, next); + if (ERTS_LIKELY(next != NULL)) { $i_call_only(next); } $HANDLE_APPLY_ERROR(); } -FIXED_APPLY(Arity, I, Deallocate) { +FIXED_APPLY(Arity, I, Deallocate, Next) { //| -no_next HEAVY_SWAPOUT; - next = fixed_apply(c_p, reg, $Arity, $I, $Deallocate); + $Next = fixed_apply(c_p, reg, $Arity, $I, $Deallocate); HEAVY_SWAPIN; } apply(Arity) { BeamInstr *next; - $FIXED_APPLY($Arity, NULL, 0); - if (next != NULL) { + $FIXED_APPLY($Arity, NULL, 0, next); + if (ERTS_LIKELY(next != NULL)) { $i_call(next); } $HANDLE_APPLY_ERROR(); @@ -213,16 +209,16 @@ apply(Arity) { apply_last(Arity, Deallocate) { BeamInstr *next; - $FIXED_APPLY($Arity, I, $Deallocate); - if (next != NULL) { + $FIXED_APPLY($Arity, I, $Deallocate, next); + if (ERTS_LIKELY(next != NULL)) { $i_call_last(next, $Deallocate); } $HANDLE_APPLY_ERROR(); } -APPLY_FUN() { +APPLY_FUN(Next) { HEAVY_SWAPOUT; - next = apply_fun(c_p, r(0), x(1), reg); + $Next = apply_fun(c_p, r(0), x(1), reg); HEAVY_SWAPIN; } @@ -237,8 +233,8 @@ DISPATCH_FUN(I) { i_apply_fun() { BeamInstr *next; - $APPLY_FUN(); - if (next != NULL) { + $APPLY_FUN(next); + if (ERTS_LIKELY(next != NULL)) { SET_CP(c_p, $NEXT_INSTRUCTION); $DISPATCH_FUN(next); } @@ -247,8 +243,8 @@ i_apply_fun() { i_apply_fun_last(Deallocate) { BeamInstr *next; - $APPLY_FUN(); - if (next != NULL) { + $APPLY_FUN(next); + if (ERTS_LIKELY(next != NULL)) { $deallocate($Deallocate); $DISPATCH_FUN(next); } @@ -257,24 +253,24 @@ i_apply_fun_last(Deallocate) { i_apply_fun_only() { BeamInstr *next; - $APPLY_FUN(); - if (next != NULL) { + $APPLY_FUN(next); + if (ERTS_LIKELY(next != NULL)) { $DISPATCH_FUN(next); } $HANDLE_APPLY_FUN_ERROR(); } -CALL_FUN(Fun) { +CALL_FUN(Fun, Next) { //| -no_next HEAVY_SWAPOUT; - next = call_fun(c_p, $Fun, reg, THE_NON_VALUE); + $Next = call_fun(c_p, $Fun, reg, THE_NON_VALUE); HEAVY_SWAPIN; } i_call_fun(Fun) { BeamInstr *next; - $CALL_FUN($Fun); - if (next != NULL) { + $CALL_FUN($Fun, next); + if (ERTS_LIKELY(next != NULL)) { SET_CP(c_p, $NEXT_INSTRUCTION); $DISPATCH_FUN(next); } @@ -283,8 +279,8 @@ i_call_fun(Fun) { i_call_fun_last(Fun, Deallocate) { BeamInstr *next; - $CALL_FUN($Fun); - if (next != NULL) { + $CALL_FUN($Fun, next); + if (ERTS_LIKELY(next != NULL)) { $deallocate($Deallocate); $DISPATCH_FUN(next); } @@ -378,7 +374,7 @@ element_group.fetch(Src) { element_group.execute(Fail, Index, Dst) { element_index = $Index; - if (is_small(element_index) && is_tuple(element_tuple)) { + if (ERTS_LIKELY(is_small(element_index) && is_tuple(element_tuple))) { Eterm* tp = tuple_val(element_tuple); if ((signed_val(element_index) >= 1) && @@ -402,7 +398,7 @@ fast_element_group.fetch(Src) { } fast_element_group.execute(Fail, Index, Dst) { - if (is_tuple(fast_element_tuple)) { + if (ERTS_LIKELY(is_tuple(fast_element_tuple))) { Eterm* tp = tuple_val(fast_element_tuple); Eterm pos = $Index; /* Untagged integer >= 1 */ if (pos <= arityval(*tp)) { @@ -906,5 +902,6 @@ i_raise() { c_p->freason = PRIMARY_EXCEPTION(s->freason); } goto find_func_info; + //| -no_next } diff --git a/erts/emulator/beam/io.c b/erts/emulator/beam/io.c index c8925e159e..3f44d6e242 100644 --- a/erts/emulator/beam/io.c +++ b/erts/emulator/beam/io.c @@ -52,6 +52,7 @@ #include "erl_bif_unique.h" #include "erl_hl_timer.h" #include "erl_time.h" +#include "erl_io_queue.h" extern ErlDrvEntry fd_driver_entry; extern ErlDrvEntry vanilla_driver_entry; @@ -102,7 +103,7 @@ static void driver_monitor_unlock_pdl(Port *p); #define ERL_SMALL_IO_BIN_LIMIT (4*ERL_ONHEAP_BIN_LIMIT) #define SMALL_WRITE_VEC 16 -static ERTS_INLINE ErlIOQueue* +static ERTS_INLINE ErlPortIOQueue* drvport2ioq(ErlDrvPort drvport) { Port *prt = erts_thr_drvport2port(drvport, 0); @@ -117,11 +118,11 @@ is_port_ioq_empty(Port *pp) int res; ERTS_LC_ASSERT(erts_lc_is_port_locked(pp)); if (!pp->port_data_lock) - res = (pp->ioq.size == 0); + res = (erts_ioq_size(&pp->ioq) == 0); else { ErlDrvPDL pdl = pp->port_data_lock; erts_mtx_lock(&pdl->mtx); - res = (pp->ioq.size == 0); + res = (erts_ioq_size(&pp->ioq) == 0); erts_mtx_unlock(&pdl->mtx); } return res; @@ -136,14 +137,14 @@ erts_is_port_ioq_empty(Port *pp) Uint erts_port_ioq_size(Port *pp) { - int res; + ErlDrvSizeT res; ERTS_LC_ASSERT(erts_lc_is_port_locked(pp)); if (!pp->port_data_lock) - res = pp->ioq.size; + res = erts_ioq_size(&pp->ioq); else { ErlDrvPDL pdl = pp->port_data_lock; erts_mtx_lock(&pdl->mtx); - res = pp->ioq.size; + res = erts_ioq_size(&pp->ioq); erts_mtx_unlock(&pdl->mtx); } return (Uint) res; @@ -473,41 +474,17 @@ erts_port_free(Port *prt) */ static void initq(Port* prt) { - ErlIOQueue* q = &prt->ioq; - ERTS_LC_ASSERT(!prt->port_data_lock); - - q->size = 0; - q->v_head = q->v_tail = q->v_start = q->v_small; - q->v_end = q->v_small + SMALL_IO_QUEUE; - q->b_head = q->b_tail = q->b_start = q->b_small; - q->b_end = q->b_small + SMALL_IO_QUEUE; + erts_ioq_init(&prt->ioq, ERTS_ALC_T_IOQ, 1); } static void stopq(Port* prt) { - ErlIOQueue* q; - ErlDrvBinary** binp; if (prt->port_data_lock) driver_pdl_lock(prt->port_data_lock); - q = &prt->ioq; - binp = q->b_head; - - if (q->v_start != q->v_small) - erts_free(ERTS_ALC_T_IOQ, (void *) q->v_start); - - while(binp < q->b_tail) { - if (*binp != NULL) - driver_free_binary(*binp); - binp++; - } - if (q->b_start != q->b_small) - erts_free(ERTS_ALC_T_IOQ, (void *) q->b_start); - q->v_start = q->v_end = q->v_head = q->v_tail = NULL; - q->b_start = q->b_end = q->b_head = q->b_tail = NULL; - q->size = 0; + erts_ioq_clear(&prt->ioq); if (prt->port_data_lock) { driver_pdl_unlock(prt->port_data_lock); @@ -876,311 +853,6 @@ int erts_port_handle_xports(Port *prt) return reds; } -/* Fills a possibly deep list of chars and binaries into vec -** Small characters are first stored in the buffer buf of length ln -** binaries found are copied and linked into msoh -** Return vector length on succsess, -** -1 on overflow -** -2 on type error -*/ - -#ifdef DEBUG -#define MAX_SYSIOVEC_IOVLEN (1ull << (32 - 1)) -#else -#define MAX_SYSIOVEC_IOVLEN (1ull << (sizeof(((SysIOVec*)0)->iov_len) * 8 - 1)) -#endif - -static ERTS_INLINE void -io_list_to_vec_set_vec(SysIOVec **iov, ErlDrvBinary ***binv, - ErlDrvBinary *bin, byte *ptr, Uint len, - int *vlen) -{ - while (len > MAX_SYSIOVEC_IOVLEN) { - (*iov)->iov_base = ptr; - (*iov)->iov_len = MAX_SYSIOVEC_IOVLEN; - ptr += MAX_SYSIOVEC_IOVLEN; - len -= MAX_SYSIOVEC_IOVLEN; - (*iov)++; - (*vlen)++; - *(*binv)++ = bin; - } - (*iov)->iov_base = ptr; - (*iov)->iov_len = len; - *(*binv)++ = bin; - (*iov)++; - (*vlen)++; -} - -static int -io_list_to_vec(Eterm obj, /* io-list */ - SysIOVec* iov, /* io vector */ - ErlDrvBinary** binv, /* binary reference vector */ - ErlDrvBinary* cbin, /* binary to store characters */ - ErlDrvSizeT bin_limit) /* small binaries limit */ -{ - DECLARE_ESTACK(s); - Eterm* objp; - byte *buf = (byte*)cbin->orig_bytes; - Uint len = cbin->orig_size; - Uint csize = 0; - int vlen = 0; - byte* cptr = buf; - - goto L_jump_start; /* avoid push */ - - while (!ESTACK_ISEMPTY(s)) { - obj = ESTACK_POP(s); - L_jump_start: - 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); - csize++; - len--; - } else if (is_binary(obj)) { - ESTACK_PUSH(s, CDR(objp)); - goto handle_binary; - } else if (is_list(obj)) { - ESTACK_PUSH(s, CDR(objp)); - goto L_iter_list; /* on head */ - } else if (!is_nil(obj)) { - goto L_type_error; - } - obj = CDR(objp); - if (is_list(obj)) - goto L_iter_list; /* on tail */ - else if (is_binary(obj)) { - goto handle_binary; - } else if (!is_nil(obj)) { - goto L_type_error; - } - } else if (is_binary(obj)) { - Eterm real_bin; - Uint offset; - Eterm* bptr; - ErlDrvSizeT size; - int bitoffs; - int bitsize; - - handle_binary: - size = binary_size(obj); - ERTS_GET_REAL_BIN(obj, real_bin, offset, bitoffs, bitsize); - ASSERT(bitsize == 0); - bptr = binary_val(real_bin); - if (*bptr == HEADER_PROC_BIN) { - ProcBin* pb = (ProcBin *) bptr; - if (bitoffs != 0) { - if (len < size) { - goto L_overflow; - } - erts_copy_bits(pb->bytes+offset, bitoffs, 1, - (byte *) buf, 0, 1, size*8); - csize += size; - buf += size; - len -= size; - } else if (bin_limit && size < bin_limit) { - if (len < size) { - goto L_overflow; - } - sys_memcpy(buf, pb->bytes+offset, size); - csize += size; - buf += size; - len -= size; - } else { - if (csize != 0) { - io_list_to_vec_set_vec(&iov, &binv, cbin, - cptr, csize, &vlen); - cptr = buf; - csize = 0; - } - if (pb->flags) { - erts_emasculate_writable_binary(pb); - } - io_list_to_vec_set_vec( - &iov, &binv, Binary2ErlDrvBinary(pb->val), - pb->bytes+offset, size, &vlen); - } - } else { - ErlHeapBin* hb = (ErlHeapBin *) bptr; - if (len < size) { - goto L_overflow; - } - copy_binary_to_buffer(buf, 0, - ((byte *) hb->data)+offset, bitoffs, - 8*size); - csize += size; - buf += size; - len -= size; - } - } else if (!is_nil(obj)) { - goto L_type_error; - } - } - - if (csize != 0) { - io_list_to_vec_set_vec(&iov, &binv, cbin, cptr, csize, &vlen); - } - - DESTROY_ESTACK(s); - return vlen; - - L_type_error: - DESTROY_ESTACK(s); - return -2; - - L_overflow: - DESTROY_ESTACK(s); - return -1; -} - -#define IO_LIST_VEC_COUNT(obj) \ -do { \ - Uint _size = binary_size(obj); \ - Eterm _real; \ - ERTS_DECLARE_DUMMY(Uint _offset); \ - int _bitoffs; \ - int _bitsize; \ - ERTS_GET_REAL_BIN(obj, _real, _offset, _bitoffs, _bitsize); \ - if (_bitsize != 0) goto L_type_error; \ - if (thing_subtag(*binary_val(_real)) == REFC_BINARY_SUBTAG && \ - _bitoffs == 0) { \ - b_size += _size; \ - if (b_size < _size) goto L_overflow_error; \ - in_clist = 0; \ - v_size++; \ - /* If iov_len is smaller then Uint we split the binary into*/ \ - /* multiple smaller (2GB) elements in the iolist.*/ \ - v_size += _size / MAX_SYSIOVEC_IOVLEN; \ - if (_size >= ERL_SMALL_IO_BIN_LIMIT) { \ - p_in_clist = 0; \ - p_v_size++; \ - } else { \ - p_c_size += _size; \ - if (!p_in_clist) { \ - p_in_clist = 1; \ - p_v_size++; \ - } \ - } \ - } else { \ - c_size += _size; \ - if (c_size < _size) goto L_overflow_error; \ - if (!in_clist) { \ - in_clist = 1; \ - v_size++; \ - } \ - p_c_size += _size; \ - if (!p_in_clist) { \ - p_in_clist = 1; \ - p_v_size++; \ - } \ - } \ -} while (0) - - -/* - * Returns 0 if successful and a non-zero value otherwise. - * - * Return values through pointers: - * *vsize - SysIOVec size needed for a writev - * *csize - Number of bytes not in binary (in the common binary) - * *pvsize - SysIOVec size needed if packing small binaries - * *pcsize - Number of bytes in the common binary if packing - * *total_size - Total size of iolist in bytes - */ - -static int -io_list_vec_len(Eterm obj, int* vsize, Uint* csize, - Uint* pvsize, Uint* pcsize, - ErlDrvSizeT* total_size) -{ - DECLARE_ESTACK(s); - Eterm* objp; - Uint v_size = 0; - Uint c_size = 0; - Uint b_size = 0; - Uint in_clist = 0; - Uint p_v_size = 0; - Uint p_c_size = 0; - Uint p_in_clist = 0; - Uint total; - - goto L_jump_start; /* avoid a push */ - - while (!ESTACK_ISEMPTY(s)) { - obj = ESTACK_POP(s); - L_jump_start: - if (is_list(obj)) { - L_iter_list: - objp = list_val(obj); - obj = CAR(objp); - - if (is_byte(obj)) { - c_size++; - if (c_size == 0) { - goto L_overflow_error; - } - if (!in_clist) { - in_clist = 1; - v_size++; - } - p_c_size++; - if (!p_in_clist) { - p_in_clist = 1; - p_v_size++; - } - } - else if (is_binary(obj)) { - IO_LIST_VEC_COUNT(obj); - } - else if (is_list(obj)) { - ESTACK_PUSH(s, CDR(objp)); - goto L_iter_list; /* on head */ - } - else if (!is_nil(obj)) { - goto L_type_error; - } - - obj = CDR(objp); - if (is_list(obj)) - goto L_iter_list; /* on tail */ - else if (is_binary(obj)) { /* binary tail is OK */ - IO_LIST_VEC_COUNT(obj); - } - else if (!is_nil(obj)) { - goto L_type_error; - } - } - else if (is_binary(obj)) { - IO_LIST_VEC_COUNT(obj); - } - else if (!is_nil(obj)) { - goto L_type_error; - } - } - - total = c_size + b_size; - if (total < c_size) { - goto L_overflow_error; - } - *total_size = (ErlDrvSizeT) total; - - DESTROY_ESTACK(s); - *vsize = v_size; - *csize = c_size; - *pvsize = p_v_size; - *pcsize = p_c_size; - return 0; - - L_type_error: - L_overflow_error: - DESTROY_ESTACK(s); - return 1; -} - typedef enum { ERTS_TRY_IMM_DRV_CALL_OK, ERTS_TRY_IMM_DRV_CALL_BUSY_LOCK, @@ -1750,8 +1422,7 @@ 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]); + driver_free_binary(ev->binv[i]); if (cbinp) driver_free_binary(cbinp); } @@ -1919,15 +1590,14 @@ erts_port_output_async(Port *prt, Eterm from, Eterm list) size_t size; int task_flags; ErtsProc2PortSigCallback port_sig_callback; - ErlDrvBinary *cbin = NULL; - ErlIOVec *evp = NULL; + ErtsIOQBinary *cbin = NULL; + ErtsIOVec *evp = NULL; char *buf = NULL; ErtsPortTaskHandle *ns_pthp; if (drv->outputv) { - ErlIOVec ev; SysIOVec* ivp; - ErlDrvBinary** bvp; + ErtsIOQBinary** bvp; int vsize; Uint csize; Uint pvsize; @@ -1937,91 +1607,63 @@ erts_port_output_async(Port *prt, Eterm from, Eterm list) char *ptr; int i; - Eterm* bptr = NULL; - Uint offset; - - if (is_binary(list)) { - /* We optimize for when we get a procbin without offset */ - Eterm real_bin; - int bitoffs; - int bitsize; - ERTS_GET_REAL_BIN(list, real_bin, offset, bitoffs, bitsize); - bptr = binary_val(real_bin); - if (*bptr == HEADER_PROC_BIN && bitoffs == 0) { - size = binary_size(list); - vsize = 1; - } else - bptr = NULL; - } - - if (!bptr) { - if (io_list_vec_len(list, &vsize, &csize, &pvsize, &pcsize, &size)) - goto bad_value; + if (erts_ioq_iodata_vec_len(list, &vsize, &csize, &pvsize, &pcsize, + &size, ERL_SMALL_IO_BIN_LIMIT)) + goto bad_value; - /* To pack or not to pack (small binaries) ...? */ - if (vsize >= SMALL_WRITE_VEC) { - /* Do pack */ - vsize = pvsize + 1; - csize = pcsize; - blimit = ERL_SMALL_IO_BIN_LIMIT; - } - cbin = driver_alloc_binary(csize); + /* To pack or not to pack (small binaries) ...? */ + if (vsize >= SMALL_WRITE_VEC) { + /* Do pack */ + vsize = pvsize + 1; + csize = pcsize; + blimit = ERL_SMALL_IO_BIN_LIMIT; + } + if (csize) { + cbin = (ErtsIOQBinary *)driver_alloc_binary(csize); if (!cbin) erts_alloc_enomem(ERTS_ALC_T_DRV_BINARY, ERTS_SIZEOF_Binary(csize)); } - 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 *); + alloc_size += (vsize+1)*sizeof(ErtsIOQBinary *); sigdp = erts_port_task_alloc_p2p_sig_data_extra(alloc_size, (void**)&ptr); - evp = (ErlIOVec *) ptr; - ivp = evp->iov = (SysIOVec *) (ptr + iov_offset); - bvp = evp->binv = (ErlDrvBinary **) (ptr + binv_offset); + evp = (ErtsIOVec *) ptr; + ivp = evp->driver.iov = (SysIOVec *) (ptr + iov_offset); + bvp = evp->common.binv = (ErtsIOQBinary **) (ptr + binv_offset); ivp[0].iov_base = NULL; ivp[0].iov_len = 0; bvp[0] = NULL; - if (bptr) { - ProcBin* pb = (ProcBin *) bptr; - - ivp[1].iov_base = pb->bytes+offset; - ivp[1].iov_len = size; - bvp[1] = Binary2ErlDrvBinary(pb->val); - - evp->vsize = 1; - } else { - - evp->vsize = io_list_to_vec(list, ivp+1, bvp+1, cbin, blimit); - if (evp->vsize < 0) { - if (evp != &ev) - erts_free(ERTS_ALC_T_DRV_CMD_DATA, evp); - driver_free_binary(cbin); - goto bad_value; - } + evp->driver.vsize = erts_ioq_iodata_to_vec(list, ivp+1, bvp+1, cbin, + blimit, 1); + if (evp->driver.vsize < 0) { + erts_free(ERTS_ALC_T_DRV_CMD_DATA, evp); + driver_free_binary(&cbin->driver); + goto bad_value; } #if 0 /* This assertion may say something useful, but it can be falsified during the emulator test suites. */ ASSERT(evp->vsize == vsize); #endif - evp->vsize++; - evp->size = size; /* total size */ + evp->driver.vsize++; + evp->driver.size = size; /* total size */ /* Need to increase refc on all binaries */ - for (i = 1; i < evp->vsize; i++) + for (i = 1; i < evp->driver.vsize; i++) if (bvp[i]) - driver_binary_inc_refc(bvp[i]); + driver_binary_inc_refc(&bvp[i]->driver); sigdp->flags = ERTS_P2P_SIG_TYPE_OUTPUTV; sigdp->u.outputv.from = from; - sigdp->u.outputv.evp = evp; - sigdp->u.outputv.cbinp = cbin; + sigdp->u.outputv.evp = &evp->driver; + sigdp->u.outputv.cbinp = &cbin->driver; port_sig_callback = port_sig_outputv; } else { ErlDrvSizeT ERTS_DECLARE_DUMMY(r); @@ -2092,8 +1734,8 @@ erts_port_output(Process *c_p, erts_aint32_t sched_flags, busy_flgs, invalid_flags; int task_flags; ErtsProc2PortSigCallback port_sig_callback; - ErlDrvBinary *cbin = NULL; - ErlIOVec *evp = NULL; + ErtsIOQBinary *cbin = NULL; + ErtsIOVec *evp = NULL; char *buf = NULL; int force_immediate_call = (flags & ERTS_PORT_SIG_FLG_FORCE_IMM_CALL); int async_nosuspend; @@ -2139,11 +1781,11 @@ erts_port_output(Process *c_p, } #endif if (drv->outputv) { - ErlIOVec ev; + ErtsIOVec ev; SysIOVec iv[SMALL_WRITE_VEC]; - ErlDrvBinary* bv[SMALL_WRITE_VEC]; + ErtsIOQBinary* bv[SMALL_WRITE_VEC]; SysIOVec* ivp; - ErlDrvBinary** bvp; + ErtsIOQBinary** bvp; int vsize; Uint csize; Uint pvsize; @@ -2151,18 +1793,19 @@ erts_port_output(Process *c_p, Uint blimit; size_t iov_offset, binv_offset, alloc_size; - if (io_list_vec_len(list, &vsize, &csize, &pvsize, &pcsize, &size)) + if (erts_ioq_iodata_vec_len(list, &vsize, &csize, &pvsize, &pcsize, + &size, ERL_SMALL_IO_BIN_LIMIT)) 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 *); + alloc_size += (vsize+1)*sizeof(ErtsIOQBinary *); if (try_call && vsize < SMALL_WRITE_VEC) { - ivp = ev.iov = iv; - bvp = ev.binv = bv; + ivp = ev.common.iov = iv; + bvp = ev.common.binv = bv; evp = &ev; } else { @@ -2173,9 +1816,9 @@ erts_port_output(Process *c_p, sigdp = erts_port_task_alloc_p2p_sig_data_extra( alloc_size, (void**)&ptr); } - evp = (ErlIOVec *) ptr; - ivp = evp->iov = (SysIOVec *) (ptr + iov_offset); - bvp = evp->binv = (ErlDrvBinary **) (ptr + binv_offset); + evp = (ErtsIOVec *) ptr; + ivp = evp->driver.iov = (SysIOVec *) (ptr + iov_offset); + bvp = evp->common.binv = (ErtsIOQBinary **) (ptr + binv_offset); } /* To pack or not to pack (small binaries) ...? */ @@ -2191,23 +1834,26 @@ erts_port_output(Process *c_p, } /* Use vsize and csize from now on */ - cbin = driver_alloc_binary(csize); - if (!cbin) - erts_alloc_enomem(ERTS_ALC_T_DRV_BINARY, ERTS_SIZEOF_Binary(csize)); + if (csize) { + cbin = (ErtsIOQBinary *)driver_alloc_binary(csize); + if (!cbin) + erts_alloc_enomem(ERTS_ALC_T_DRV_BINARY, ERTS_SIZEOF_Binary(csize)); + } /* Element 0 is for driver usage to add header block */ ivp[0].iov_base = NULL; ivp[0].iov_len = 0; bvp[0] = NULL; - evp->vsize = io_list_to_vec(list, ivp+1, bvp+1, cbin, blimit); - if (evp->vsize < 0) { + evp->driver.vsize = erts_ioq_iodata_to_vec(list, ivp+1, bvp+1, + cbin, blimit, 1); + if (evp->driver.vsize < 0) { if (evp != &ev) { if (try_call) erts_free(ERTS_ALC_T_TMP, evp); else erts_port_task_free_p2p_sig_data(sigdp); } - driver_free_binary(cbin); + driver_free_binary(&cbin->driver); goto bad_value; } #if 0 @@ -2215,19 +1861,19 @@ erts_port_output(Process *c_p, be falsified during the emulator test suites. */ ASSERT(evp->vsize == vsize); #endif - evp->vsize++; - evp->size = size; /* total size */ + evp->driver.vsize++; + evp->driver.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]); + for (i = 1; i < evp->driver.vsize; i++) + if (bvp[i]) + driver_binary_inc_refc(&bvp[i]->driver); } else { int i; - ErlIOVec *new_evp; + ErtsIOVec *new_evp; ErtsTryImmDrvCallResult try_call_res; ErtsTryImmDrvCallState try_call_state = ERTS_INIT_TRY_IMM_DRV_CALL_STATE( @@ -2250,14 +1896,14 @@ erts_port_output(Process *c_p, from, prt, drv, - evp); + &evp->driver); 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); + driver_free_binary(&cbin->driver); if (evp != &ev) { ASSERT(!sigdp); erts_free(ERTS_ALC_T_TMP, evp); @@ -2271,7 +1917,7 @@ erts_port_output(Process *c_p, sched_flags = try_call_state.sched_flags; if (async_nosuspend && (sched_flags & (busy_flgs|ERTS_PTS_FLG_EXIT))) { - driver_free_binary(cbin); + driver_free_binary(&cbin->driver); if (evp != &ev) { ASSERT(!sigdp); erts_free(ERTS_ALC_T_TMP, evp); @@ -2286,9 +1932,9 @@ erts_port_output(Process *c_p, } /* Need to increase refc on all binaries */ - for (i = 1; i < evp->vsize; i++) + for (i = 1; i < evp->driver.vsize; i++) if (bvp[i]) - driver_binary_inc_refc(bvp[i]); + driver_binary_inc_refc(&bvp[i]->driver); /* The port task and iovec is allocated in the same structure as an optimization. This @@ -2301,18 +1947,18 @@ erts_port_output(Process *c_p, if (evp != &ev) { /* Copy from TMP alloc to port task */ 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); + new_evp->driver.iov = (SysIOVec *) (((char *) new_evp) + + iov_offset); + bvp = new_evp->common.binv = (ErtsIOQBinary **) (((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]); + ASSERT(new_evp->driver.vsize == evp->driver.vsize); + ASSERT(new_evp->driver.size == evp->driver.size); + for (i = 0; i < evp->driver.vsize; i++) { + ASSERT(new_evp->driver.iov[i].iov_len == evp->driver.iov[i].iov_len); + ASSERT(new_evp->driver.iov[i].iov_base == evp->driver.iov[i].iov_base); + ASSERT(new_evp->driver.binv[i] == evp->driver.binv[i]); } #endif @@ -2321,24 +1967,24 @@ erts_port_output(Process *c_p, 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 *)); + new_evp->driver.iov = (SysIOVec *) (((char *) new_evp) + + iov_offset); + sys_memcpy((void *) new_evp->driver.iov, + (void *) evp->driver.iov, + evp->driver.vsize * sizeof(SysIOVec)); + new_evp->common.binv = (ErtsIOQBinary **) (((char *) new_evp) + + binv_offset); + sys_memcpy((void *) new_evp->common.binv, + (void *) evp->common.binv, + evp->driver.vsize * sizeof(ErtsIOQBinary *)); #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]); + ASSERT(new_evp->driver.vsize == evp->driver.vsize); + ASSERT(new_evp->driver.size == evp->driver.size); + for (i = 0; i < evp->driver.vsize; i++) { + ASSERT(new_evp->driver.iov[i].iov_len == evp->driver.iov[i].iov_len); + ASSERT(new_evp->driver.iov[i].iov_base == evp->driver.iov[i].iov_base); + ASSERT(new_evp->driver.binv[i] == evp->driver.binv[i]); } #endif @@ -2349,8 +1995,8 @@ erts_port_output(Process *c_p, sigdp->flags = ERTS_P2P_SIG_TYPE_OUTPUTV; sigdp->u.outputv.from = from; - sigdp->u.outputv.evp = evp; - sigdp->u.outputv.cbinp = cbin; + sigdp->u.outputv.evp = &evp->driver; + sigdp->u.outputv.cbinp = &cbin->driver; port_sig_callback = port_sig_outputv; } else { @@ -6682,6 +6328,7 @@ int driver_output_binary(ErlDrvPort ix, char* hbuf, ErlDrvSizeT hlen, else erts_atomic64_add_nob(&bytes_in, (erts_aint64_t) (hlen + len)); if (state & ERTS_PORT_SFLG_DISTRIBUTION) { + erts_atomic64_inc_nob(&prt->dist_entry->in); return erts_net_message(prt, prt->dist_entry, (byte*) hbuf, hlen, @@ -6722,6 +6369,7 @@ int driver_output2(ErlDrvPort ix, char* hbuf, ErlDrvSizeT hlen, else erts_atomic64_add_nob(&bytes_in, (erts_aint64_t) (hlen + len)); if (state & ERTS_PORT_SFLG_DISTRIBUTION) { + erts_atomic64_inc_nob(&prt->dist_entry->in); if (len == 0) return erts_net_message(prt, prt->dist_entry, @@ -7088,307 +6736,51 @@ driver_pdl_dec_refc(ErlDrvPDL pdl) return refc; } -/* expand queue to hold n elements in tail or head */ -static int expandq(ErlIOQueue* q, int n, int tail) -/* tail: 0 if make room in head, make room in tail otherwise */ -{ - int h_sz; /* room before header */ - int t_sz; /* room after tail */ - int q_sz; /* occupied */ - int nvsz; - SysIOVec* niov; - ErlDrvBinary** nbinv; - - h_sz = q->v_head - q->v_start; - t_sz = q->v_end - q->v_tail; - q_sz = q->v_tail - q->v_head; - - if (tail && (n <= t_sz)) /* do we need to expand tail? */ - return 0; - else if (!tail && (n <= h_sz)) /* do we need to expand head? */ - return 0; - else if (n > (h_sz + t_sz)) { /* need to allocate */ - /* we may get little extra but it ok */ - nvsz = (q->v_end - q->v_start) + n; - - niov = erts_alloc_fnf(ERTS_ALC_T_IOQ, nvsz * sizeof(SysIOVec)); - if (!niov) - return -1; - nbinv = erts_alloc_fnf(ERTS_ALC_T_IOQ, nvsz * sizeof(ErlDrvBinary**)); - if (!nbinv) { - erts_free(ERTS_ALC_T_IOQ, (void *) niov); - return -1; - } - if (tail) { - sys_memcpy(niov, q->v_head, q_sz*sizeof(SysIOVec)); - if (q->v_start != q->v_small) - erts_free(ERTS_ALC_T_IOQ, (void *) q->v_start); - q->v_start = niov; - q->v_end = niov + nvsz; - q->v_head = q->v_start; - q->v_tail = q->v_head + q_sz; - - sys_memcpy(nbinv, q->b_head, q_sz*sizeof(ErlDrvBinary*)); - if (q->b_start != q->b_small) - erts_free(ERTS_ALC_T_IOQ, (void *) q->b_start); - q->b_start = nbinv; - q->b_end = nbinv + nvsz; - q->b_head = q->b_start; - q->b_tail = q->b_head + q_sz; - } - else { - sys_memcpy(niov+nvsz-q_sz, q->v_head, q_sz*sizeof(SysIOVec)); - if (q->v_start != q->v_small) - erts_free(ERTS_ALC_T_IOQ, (void *) q->v_start); - q->v_start = niov; - q->v_end = niov + nvsz; - q->v_tail = q->v_end; - q->v_head = q->v_tail - q_sz; - - sys_memcpy(nbinv+nvsz-q_sz, q->b_head, q_sz*sizeof(ErlDrvBinary*)); - if (q->b_start != q->b_small) - erts_free(ERTS_ALC_T_IOQ, (void *) q->b_start); - q->b_start = nbinv; - q->b_end = nbinv + nvsz; - q->b_tail = q->b_end; - q->b_head = q->b_tail - q_sz; - } - } - else if (tail) { /* move to beginning to make room in tail */ - sys_memmove(q->v_start, q->v_head, q_sz*sizeof(SysIOVec)); - q->v_head = q->v_start; - q->v_tail = q->v_head + q_sz; - sys_memmove(q->b_start, q->b_head, q_sz*sizeof(ErlDrvBinary*)); - q->b_head = q->b_start; - q->b_tail = q->b_head + q_sz; - } - else { /* move to end to make room */ - sys_memmove(q->v_end-q_sz, q->v_head, q_sz*sizeof(SysIOVec)); - q->v_tail = q->v_end; - q->v_head = q->v_tail-q_sz; - sys_memmove(q->b_end-q_sz, q->b_head, q_sz*sizeof(ErlDrvBinary*)); - q->b_tail = q->b_end; - q->b_head = q->b_tail-q_sz; - } - - return 0; -} - - - /* Put elements from vec at q tail */ int driver_enqv(ErlDrvPort ix, ErlIOVec* vec, ErlDrvSizeT skip) { - int n; - size_t len; - ErlDrvSizeT size; - SysIOVec* iov; - ErlDrvBinary** binv; - ErlDrvBinary* b; - ErlIOQueue* q = drvport2ioq(ix); - - if (q == NULL) - return -1; - - ASSERT(vec->size >= skip); /* debug only */ - if (vec->size <= skip) - return 0; - size = vec->size - skip; - - iov = vec->iov; - binv = vec->binv; - n = vec->vsize; - - /* we use do here to strip iov_len=0 from beginning */ - do { - len = iov->iov_len; - if (len <= skip) { - skip -= len; - iov++; - binv++; - n--; - } - else { - iov->iov_base = ((char *)(iov->iov_base)) + skip; - iov->iov_len -= skip; - skip = 0; - } - } while(skip > 0); - - if (q->v_tail + n >= q->v_end) - expandq(q, n, 1); - - /* Queue and reference all binaries (remove zero length items) */ - while(n--) { - if ((len = iov->iov_len) > 0) { - if ((b = *binv) == NULL) { /* speical case create binary ! */ - b = driver_alloc_binary(len); - sys_memcpy(b->orig_bytes, iov->iov_base, len); - *q->b_tail++ = b; - q->v_tail->iov_len = len; - q->v_tail->iov_base = b->orig_bytes; - q->v_tail++; - } - else { - driver_binary_inc_refc(b); - *q->b_tail++ = b; - *q->v_tail++ = *iov; - } - } - iov++; - binv++; - } - q->size += size; /* update total size in queue */ - return 0; + ASSERT(vec->size >= skip); + return erts_ioq_enqv(drvport2ioq(ix), (ErtsIOVec*)vec, skip); } /* Put elements from vec at q head */ int driver_pushqv(ErlDrvPort ix, ErlIOVec* vec, ErlDrvSizeT skip) { - int n; - size_t len; - ErlDrvSizeT size; - SysIOVec* iov; - ErlDrvBinary** binv; - ErlDrvBinary* b; - ErlIOQueue* q = drvport2ioq(ix); - - if (q == NULL) - return -1; - - if (vec->size <= skip) - return 0; - size = vec->size - skip; - - iov = vec->iov; - binv = vec->binv; - n = vec->vsize; - - /* we use do here to strip iov_len=0 from beginning */ - do { - len = iov->iov_len; - if (len <= skip) { - skip -= len; - iov++; - binv++; - n--; - } - else { - iov->iov_base = ((char *)(iov->iov_base)) + skip; - iov->iov_len -= skip; - skip = 0; - } - } while(skip > 0); - - if (q->v_head - n < q->v_start) - expandq(q, n, 0); - - /* Queue and reference all binaries (remove zero length items) */ - iov += (n-1); /* move to end */ - binv += (n-1); /* move to end */ - while(n--) { - if ((len = iov->iov_len) > 0) { - if ((b = *binv) == NULL) { /* speical case create binary ! */ - b = driver_alloc_binary(len); - sys_memcpy(b->orig_bytes, iov->iov_base, len); - *--q->b_head = b; - q->v_head--; - q->v_head->iov_len = len; - q->v_head->iov_base = b->orig_bytes; - } - else { - driver_binary_inc_refc(b); - *--q->b_head = b; - *--q->v_head = *iov; - } - } - iov--; - binv--; - } - q->size += size; /* update total size in queue */ - return 0; + ASSERT(vec->size >= skip); + return erts_ioq_pushqv(drvport2ioq(ix), (ErtsIOVec*)vec, skip); } - /* ** Remove size bytes from queue head ** Return number of bytes that remain in queue */ ErlDrvSizeT driver_deq(ErlDrvPort ix, ErlDrvSizeT size) { - ErlIOQueue* q = drvport2ioq(ix); - ErlDrvSizeT len; - - if ((q == NULL) || (q->size < size)) - return -1; - q->size -= size; - while (size > 0) { - ASSERT(q->v_head != q->v_tail); - - len = q->v_head->iov_len; - if (len <= size) { - size -= len; - driver_free_binary(*q->b_head); - *q->b_head++ = NULL; - q->v_head++; - } - else { - q->v_head->iov_base = ((char *)(q->v_head->iov_base)) + size; - q->v_head->iov_len -= size; - size = 0; - } - } - - /* restart pointers (optimised for enq) */ - if (q->v_head == q->v_tail) { - q->v_head = q->v_tail = q->v_start; - q->b_head = q->b_tail = q->b_start; - } - return q->size; + ErlPortIOQueue *q = drvport2ioq(ix); + if (erts_ioq_deq(q, size) == -1) + return -1; + return erts_ioq_size(q); } -ErlDrvSizeT driver_peekqv(ErlDrvPort ix, ErlIOVec *ev) { - ErlIOQueue *q = drvport2ioq(ix); - ASSERT(ev); - - if (! q) { - return (ErlDrvSizeT) -1; - } else { - if ((ev->vsize = q->v_tail - q->v_head) == 0) { - ev->size = 0; - ev->iov = NULL; - ev->binv = NULL; - } else { - ev->size = q->size; - ev->iov = q->v_head; - ev->binv = q->b_head; - } - return q->size; - } +ErlDrvSizeT driver_peekqv(ErlDrvPort ix, ErlIOVec *ev) +{ + return erts_ioq_peekqv(drvport2ioq(ix), (ErtsIOVec*)ev); } SysIOVec* driver_peekq(ErlDrvPort ix, int* vlenp) /* length of io-vector */ { - ErlIOQueue* q = drvport2ioq(ix); - - if (q == NULL) { - *vlenp = -1; - return NULL; - } - if ((*vlenp = (q->v_tail - q->v_head)) == 0) - return NULL; - return q->v_head; + return erts_ioq_peekq(drvport2ioq(ix), vlenp); } ErlDrvSizeT driver_sizeq(ErlDrvPort ix) { - ErlIOQueue* q = drvport2ioq(ix); + ErlPortIOQueue *q = drvport2ioq(ix); if (q == NULL) - return (size_t) -1; - return q->size; + return (ErlDrvSizeT) -1; + return erts_ioq_size(q); } diff --git a/erts/emulator/beam/macros.tab b/erts/emulator/beam/macros.tab index 41dc761e90..bac96be7d3 100644 --- a/erts/emulator/beam/macros.tab +++ b/erts/emulator/beam/macros.tab @@ -42,7 +42,7 @@ JUMP(Fail) { GC_TEST(Ns, Nh, Live) { Uint need = $Nh + $Ns; - if (E - HTOP < need) { + if (ERTS_UNLIKELY(E - HTOP < need)) { SWAPOUT; PROCESS_MAIN_CHK_LOCKS(c_p); FCALLS -= erts_garbage_collect_nobump(c_p, need, reg, $Live, FCALLS); @@ -55,7 +55,7 @@ GC_TEST(Ns, Nh, Live) { GC_TEST_PRESERVE(NeedHeap, Live, PreserveTerm) { Uint need = $NeedHeap; - if (E - HTOP < need) { + if (ERTS_UNLIKELY(E - HTOP < need)) { SWAPOUT; reg[$Live] = $PreserveTerm; PROCESS_MAIN_CHK_LOCKS(c_p); @@ -99,7 +99,13 @@ FAIL_BODY() { FAIL_HEAD_OR_BODY(Fail) { //| -no_prefetch - if ($Fail) { + + /* + * In a correctly working program, we expect failures in + * guards to be more likely than failures in bodies. + */ + + if (ERTS_LIKELY($Fail)) { $FAIL($Fail); } goto find_func_info; @@ -122,7 +128,7 @@ SYSTEM_LIMIT(Fail) { BIF_ERROR_ARITY_1(Fail, BIF, Op1) { //| -no_prefetch - if ($Fail) { + if (ERTS_LIKELY($Fail)) { $FAIL($Fail); } reg[0] = $Op1; @@ -133,7 +139,7 @@ BIF_ERROR_ARITY_1(Fail, BIF, Op1) { BIF_ERROR_ARITY_2(Fail, BIF, Op1, Op2) { //| -no_prefetch - if ($Fail) { + if (ERTS_LIKELY($Fail)) { $FAIL($Fail); } reg[0] = $Op1; diff --git a/erts/emulator/beam/msg_instrs.tab b/erts/emulator/beam/msg_instrs.tab index 509143268b..093d48c64c 100644 --- a/erts/emulator/beam/msg_instrs.tab +++ b/erts/emulator/beam/msg_instrs.tab @@ -66,7 +66,9 @@ i_recv_set() { if (c_p->msg.mark == (BeamInstr *) ($NEXT_INSTRUCTION)) { c_p->msg.save = c_p->msg.saved_last; } - /* Fall through to the loop_rec/2 instruction */ + SET_I($NEXT_INSTRUCTION); + goto loop_rec_top__; + //| -no_next } i_loop_rec(Dest) { @@ -79,6 +81,10 @@ i_loop_rec(Dest) { ErtsMessage* msgp; + /* Entry point from recv_set */ + loop_rec_top__: + ; + /* * We need to disable GC while matching messages * in the queue. This since messages with data outside @@ -87,7 +93,8 @@ i_loop_rec(Dest) { ASSERT(!(c_p->flags & F_DELAY_GC)); c_p->flags |= F_DELAY_GC; -loop_rec__: + /* Entry point from loop_rec_end */ + loop_rec__: PROCESS_MAIN_CHK_LOCKS(c_p); @@ -285,6 +292,7 @@ timeout() { TIMEOUT_VALUE() { c_p->freason = EXC_TIMEOUT_VALUE; goto find_func_info; + //| -no_next } i_wait_error_locked() { diff --git a/erts/emulator/beam/ops.tab b/erts/emulator/beam/ops.tab index b6e995fdbe..d64f6f2cfc 100644 --- a/erts/emulator/beam/ops.tab +++ b/erts/emulator/beam/ops.tab @@ -59,6 +59,7 @@ put_tuple u==0 d => too_old_compiler # All the other instructions. # +%cold label L i_func_info I a a I int_code_end @@ -68,6 +69,7 @@ i_debug_breakpoint i_return_time_trace i_return_to_trace i_yield +%hot return @@ -188,7 +190,9 @@ try Y F => catch Y F try_case Y => try_end Y try_end y +%cold try_case_end s +%hot # Destructive set tuple element @@ -217,6 +221,11 @@ is_number Fail Literal=q => move Literal x | is_number Fail x jump f +# +# Expection rasing instructions. Infrequently executed. +# + +%cold case_end NotInX=cy => move NotInX x | case_end x badmatch NotInX=cy => move NotInX x | badmatch x @@ -238,6 +247,12 @@ i_raise badarg j system_limit j +%hot + +# +# Move instructions. +# + move C=cxy x==0 | jump Lbl => move_jump Lbl C move_jump f ncxy @@ -404,8 +419,10 @@ wait_timeout_unlocked s f wait_timeout_locked_int I f wait_timeout_locked s f +%cold i_wait_error i_wait_error_locked +%hot send @@ -515,6 +532,7 @@ put_list s s d # Some more only used by the emulator # +%cold normal_exit continue_exit apply_bif @@ -522,6 +540,7 @@ call_nif call_error_handler error_action_code return_trace +%hot # # Instruction transformations & folded instructions. @@ -939,9 +958,11 @@ i_apply_fun i_apply_fun_last P i_apply_fun_only +%cold i_hibernate i_perf_counter +%hot call_bif e @@ -1040,7 +1061,7 @@ func_info M F A => i_func_info u M F A # New bit syntax matching (R11B). # ================================================================ -%cold +%warm bs_start_match2 Fail=f ica X Y D => jump Fail bs_start_match2 Fail Bin X Y D => i_bs_start_match2 Bin Fail X Y D i_bs_start_match2 xy f I I x @@ -1138,7 +1159,7 @@ i_bs_validate_unicode_retract j s s # # Constructing binaries # -%cold +%warm bs_init2 Fail Sz Words Regs Flags Dst | binary_too_big(Sz) => system_limit Fail diff --git a/erts/emulator/beam/sys.h b/erts/emulator/beam/sys.h index 615f44364b..68ef0a23f3 100644 --- a/erts/emulator/beam/sys.h +++ b/erts/emulator/beam/sys.h @@ -757,10 +757,6 @@ Preload* sys_preloaded(void); unsigned char* sys_preload_begin(Preload*); void sys_preload_end(Preload*); int sys_get_key(int); -void elapsed_time_both(ErtsMonotonicTime *ms_user, ErtsMonotonicTime *ms_sys, - ErtsMonotonicTime *ms_user_diff, ErtsMonotonicTime *ms_sys_diff); -void wall_clock_elapsed_time_both(ErtsMonotonicTime *ms_total, - ErtsMonotonicTime *ms_diff); void get_time(int *hour, int *minute, int *second); void get_date(int *year, int *month, int *day); void get_localtime(int *year, int *month, int *day, @@ -1109,6 +1105,14 @@ void erl_bin_write(unsigned char *, int, int); # define DEBUGF(x) #endif +#ifndef MAX +#define MAX(A, B) ((A) > (B) ? (A) : (B)) +#endif + +#ifndef MIN +#define MIN(A, B) ((A) < (B) ? (A) : (B)) +#endif + #ifdef __WIN32__ #ifdef ARCH_64 #define ERTS_ALLOC_ALIGN_BYTES 16 diff --git a/erts/emulator/beam/trace_instrs.tab b/erts/emulator/beam/trace_instrs.tab index dfd1d16d58..c71f2ef003 100644 --- a/erts/emulator/beam/trace_instrs.tab +++ b/erts/emulator/beam/trace_instrs.tab @@ -102,7 +102,7 @@ i_yield() { i_hibernate() { HEAVY_SWAPOUT; - if (erts_hibernate(c_p, r(0), x(1), x(2), reg)) { + if (erts_hibernate(c_p, reg)) { FCALLS = c_p->fcalls; c_p->flags &= ~F_HIBERNATE_SCHED; goto do_schedule; diff --git a/erts/emulator/beam/utils.c b/erts/emulator/beam/utils.c index d93c232d66..993585be10 100644 --- a/erts/emulator/beam/utils.c +++ b/erts/emulator/beam/utils.c @@ -51,6 +51,7 @@ #include "erl_ptab.h" #include "erl_check_io.h" #include "erl_bif_unique.h" +#include "erl_io_queue.h" #define ERTS_WANT_TIMER_WHEEL_API #include "erl_time.h" #ifdef HIPE |