diff options
Diffstat (limited to 'erts/emulator/beam')
27 files changed, 738 insertions, 304 deletions
diff --git a/erts/emulator/beam/atom.c b/erts/emulator/beam/atom.c index d7c7f117cf..82dd320ea9 100644 --- a/erts/emulator/beam/atom.c +++ b/erts/emulator/beam/atom.c @@ -111,7 +111,7 @@ atom_text_alloc(int bytes) { byte *res; - ASSERT(bytes <= MAX_ATOM_LENGTH); + ASSERT(bytes <= MAX_ATOM_SZ_LIMIT); if (atom_text_pos + bytes >= atom_text_end) { more_atom_space(); } @@ -162,6 +162,7 @@ atom_alloc(Atom* tmpl) obj->name = atom_text_alloc(tmpl->len); sys_memcpy(obj->name, tmpl->name, tmpl->len); obj->len = tmpl->len; + obj->latin1_chars = tmpl->latin1_chars; obj->slot.index = -1; /* @@ -192,44 +193,146 @@ atom_free(Atom* obj) erts_free(ERTS_ALC_T_ATOM, (void*) obj); } +static void latin1_to_utf8(byte* conv_buf, const byte** srcp, int* lenp) +{ + byte* dst; + const byte* src = *srcp; + int i, len = *lenp; + + for (i=0 ; i < len; ++i) { + if (src[i] & 0x80) { + goto need_convertion; + } + } + return; + +need_convertion: + sys_memcpy(conv_buf, src, i); + dst = conv_buf + i; + for ( ; i < len; ++i) { + unsigned char chr = src[i]; + if (!(chr & 0x80)) { + *dst++ = chr; + } + else { + *dst++ = 0xC0 | (chr >> 6); + *dst++ = 0x80 | (chr & 0x3F); + } + } + *srcp = conv_buf; + *lenp = dst - conv_buf; +} + +/* + * erts_atom_put() may fail. If it fails THE_NON_VALUE is returned! + */ Eterm -am_atom_put(const char* name, int len) +erts_atom_put(const byte *name, int len, ErtsAtomEncoding enc, int trunc) { + byte utf8_copy[MAX_ATOM_SZ_FROM_LATIN1]; + const byte *text = name; + int tlen = len; + Sint no_latin1_chars; Atom a; - Eterm ret; int aix; - /* - * Silently truncate the atom if it is too long. Overlong atoms - * could occur in situations where we have no good way to return - * an error, such as in the I/O system. (Unfortunately, many - * drivers don't check for errors.) - * - * If an error should be produced for overlong atoms (such in - * list_to_atom/1), the caller should check the length before - * calling this function. - */ - if (len > MAX_ATOM_LENGTH) { - len = MAX_ATOM_LENGTH; - } #ifdef ERTS_ATOM_PUT_OPS_STAT erts_smp_atomic_inc_nob(&atom_put_ops); #endif - a.len = len; - a.name = (byte*)name; + + if (tlen < 0) { + if (trunc) + tlen = 0; + else + return THE_NON_VALUE; + } + + switch (enc) { + case ERTS_ATOM_ENC_7BIT_ASCII: + if (tlen > MAX_ATOM_CHARACTERS) { + if (trunc) + tlen = MAX_ATOM_CHARACTERS; + else + return THE_NON_VALUE; + } +#ifdef DEBUG + for (aix = 0; aix < len; aix++) { + ASSERT((name[aix] & 0x80) == 0); + } +#endif + no_latin1_chars = tlen; + break; + case ERTS_ATOM_ENC_LATIN1: + if (tlen > MAX_ATOM_CHARACTERS) { + if (trunc) + tlen = MAX_ATOM_CHARACTERS; + else + return THE_NON_VALUE; + } + no_latin1_chars = tlen; + latin1_to_utf8(utf8_copy, &text, &tlen); + break; + case ERTS_ATOM_ENC_UTF8: + /* First sanity check; need to verify later */ + if (tlen > MAX_ATOM_SZ_LIMIT && !trunc) + return THE_NON_VALUE; + break; + } + + a.len = tlen; + a.name = (byte *) text; atom_read_lock(); aix = index_get(&erts_atom_table, (void*) &a); atom_read_unlock(); - if (aix >= 0) - ret = make_atom(aix); - else { - atom_write_lock(); - ret = make_atom(index_put(&erts_atom_table, (void*) &a)); - atom_write_unlock(); + if (aix >= 0) { + /* Already in table no need to verify it */ + return make_atom(aix); } - return ret; + + if (enc == ERTS_ATOM_ENC_UTF8) { + /* Need to verify encoding and length */ + byte *err_pos; + Uint no_chars; + switch (erts_analyze_utf8_x((byte *) text, + (Uint) tlen, + &err_pos, + &no_chars, NULL, + &no_latin1_chars, + MAX_ATOM_CHARACTERS)) { + case ERTS_UTF8_OK: + ASSERT(no_chars <= MAX_ATOM_CHARACTERS); + break; + case ERTS_UTF8_OK_MAX_CHARS: + /* Truncated... */ + if (!trunc) + return THE_NON_VALUE; + ASSERT(no_chars == MAX_ATOM_CHARACTERS); + tlen = err_pos - text; + break; + default: + /* Bad utf8... */ + return THE_NON_VALUE; + } + } + + ASSERT(tlen <= MAX_ATOM_SZ_LIMIT); + ASSERT(-1 <= no_latin1_chars && no_latin1_chars <= MAX_ATOM_CHARACTERS); + + a.len = tlen; + a.latin1_chars = (Sint16) no_latin1_chars; + a.name = (byte *) text; + atom_write_lock(); + aix = index_put(&erts_atom_table, (void*) &a); + atom_write_unlock(); + return make_atom(aix); } +Eterm +am_atom_put(const char* name, int len) +{ + /* Assumes 7-bit ascii; use erts_atom_put() for other encodings... */ + return erts_atom_put((byte *) name, len, ERTS_ATOM_ENC_7BIT_ASCII, 1); +} int atom_table_size(void) { @@ -264,14 +367,19 @@ int atom_table_sz(void) } int -erts_atom_get(const char *name, int len, Eterm* ap) +erts_atom_get(const char *name, int len, Eterm* ap, int is_latin1) { + byte utf8_copy[MAX_ATOM_SZ_FROM_LATIN1]; Atom a; int i; int res; - a.len = len; + a.len = (Sint16) len; a.name = (byte *)name; + if (is_latin1) { + latin1_to_utf8(utf8_copy, (const byte**)&a.name, &len); + a.len = (Sint16) len; + } atom_read_lock(); i = index_get(&erts_atom_table, (void*) &a); res = i < 0 ? 0 : (*ap = make_atom(i), 1); @@ -333,8 +441,15 @@ init_atom_table(void) for (i = 0; erl_atom_names[i] != 0; i++) { int ix; a.len = strlen(erl_atom_names[i]); + a.latin1_chars = a.len; a.name = (byte*)erl_atom_names[i]; a.slot.index = i; +#ifdef DEBUG + /* Verify 7-bit ascii */ + for (ix = 0; ix < a.len; ix++) { + ASSERT((a.name[ix] & 0x80) == 0); + } +#endif ix = index_put(&erts_atom_table, (void*) &a); atom_text_pos -= a.len; atom_space -= a.len; diff --git a/erts/emulator/beam/atom.h b/erts/emulator/beam/atom.h index fd9c04d3d0..f721999a4c 100644 --- a/erts/emulator/beam/atom.h +++ b/erts/emulator/beam/atom.h @@ -26,7 +26,9 @@ #include "erl_atom_table.h" -#define MAX_ATOM_LENGTH 255 +#define MAX_ATOM_CHARACTERS 255 +#define MAX_ATOM_SZ_FROM_LATIN1 (2*MAX_ATOM_CHARACTERS) +#define MAX_ATOM_SZ_LIMIT (4*MAX_ATOM_CHARACTERS) /* theoretical byte limit */ #define ATOM_LIMIT (1024*1024) #define MIN_ATOM_TABLE_SIZE 8192 @@ -45,7 +47,8 @@ */ typedef struct atom { IndexSlot slot; /* MUST BE LOCATED AT TOP OF STRUCT!!! */ - int len; /* length of atom name */ + Sint16 len; /* length of atom name (UTF-8 encoded) */ + Sint16 latin1_chars; /* 0-255 if atom can be encoded in latin1; otherwise, -1 */ int ord0; /* ordinal value of first 3 bytes + 7 bits */ byte* name; /* name of atom */ } Atom; @@ -53,8 +56,8 @@ typedef struct atom { extern IndexTable erts_atom_table; ERTS_GLB_INLINE Atom* atom_tab(Uint i); -ERTS_GLB_INLINE int erts_is_atom_bytes(byte *text, size_t len, Eterm term); -ERTS_GLB_INLINE int erts_is_atom_str(char *str, Eterm term); +ERTS_GLB_INLINE int erts_is_atom_utf8_bytes(byte *text, size_t len, Eterm term); +ERTS_GLB_INLINE int erts_is_atom_str(const char *str, Eterm term, int is_latin1); #if ERTS_GLB_INLINE_INCL_FUNC_DEF ERTS_GLB_INLINE Atom* @@ -63,7 +66,7 @@ atom_tab(Uint i) return (Atom *) erts_index_lookup(&erts_atom_table, i); } -ERTS_GLB_INLINE int erts_is_atom_bytes(byte *text, size_t len, Eterm term) +ERTS_GLB_INLINE int erts_is_atom_utf8_bytes(byte *text, size_t len, Eterm term) { Atom *a; if (!is_atom(term)) @@ -73,43 +76,70 @@ ERTS_GLB_INLINE int erts_is_atom_bytes(byte *text, size_t len, Eterm term) && sys_memcmp((void *) a->name, (void *) text, len) == 0); } -ERTS_GLB_INLINE int erts_is_atom_str(char *str, Eterm term) +ERTS_GLB_INLINE int erts_is_atom_str(const char *str, Eterm term, int is_latin1) { Atom *a; int i, len; - char *aname; + const byte* aname; + const byte* s = (const byte*) str; + if (!is_atom(term)) return 0; a = atom_tab(atom_val(term)); len = a->len; - aname = (char *) a->name; - for (i = 0; i < len; i++) - if (aname[i] != str[i] || str[i] == '\0') - return 0; - return str[len] == '\0'; + aname = a->name; + if (is_latin1) { + for (i = 0; i < len; s++) { + if (aname[i] < 0x80) { + if (aname[i] != *s || *s == '\0') + return 0; + i++; + } + else { + if (aname[i] != (0xC0 | (*s >> 6)) || + aname[i+1] != (0x80 | (*s & 0x3F))) { + return 0; + } + i += 2; + } + } + } + else { + for (i = 0; i < len; i++, s++) + if (aname[i] != *s || *s == '\0') + return 0; + } + return *s == '\0'; } #endif +typedef enum { + ERTS_ATOM_ENC_7BIT_ASCII, + ERTS_ATOM_ENC_LATIN1, + ERTS_ATOM_ENC_UTF8 +} ErtsAtomEncoding; + /* * Note, ERTS_IS_ATOM_STR() expects the first argument to be a - * string literal. + * 7-bit ASCII string literal. */ #define ERTS_IS_ATOM_STR(LSTR, TERM) \ - (erts_is_atom_bytes((byte *) LSTR, sizeof(LSTR) - 1, (TERM))) + (erts_is_atom_utf8_bytes((byte *) LSTR, sizeof(LSTR) - 1, (TERM))) #define ERTS_DECL_AM(S) Eterm AM_ ## S = am_atom_put(#S, sizeof(#S) - 1) #define ERTS_INIT_AM(S) AM_ ## S = am_atom_put(#S, sizeof(#S) - 1) int atom_table_size(void); /* number of elements */ int atom_table_sz(void); /* table size in bytes, excluding stored objects */ -Eterm am_atom_put(const char*, int); /* most callers pass plain char*'s */ +Eterm am_atom_put(const char*, int); /* ONLY 7-bit ascii! */ +Eterm erts_atom_put(const byte *name, int len, ErtsAtomEncoding enc, int trunc); int atom_erase(byte*, int); int atom_static_put(byte*, int); void init_atom_table(void); void atom_info(int, void *); void dump_atoms(int, void *); -int erts_atom_get(const char* name, int len, Eterm* ap); +int erts_atom_get(const char* name, int len, Eterm* ap, int is_latin1); void erts_atom_get_text_space_sizes(Uint *reserved, Uint *used); #endif diff --git a/erts/emulator/beam/atom.names b/erts/emulator/beam/atom.names index c47a608215..590b2fc960 100644 --- a/erts/emulator/beam/atom.names +++ b/erts/emulator/beam/atom.names @@ -18,6 +18,8 @@ # # +# IMPORTANT! All atoms defined here *need* to be in 7-bit ascii! +# # File format: # # Lines starting with '#' are ignored. @@ -144,6 +146,7 @@ atom close atom closed atom code atom command +atom compact atom compat_rel atom compile atom compressed @@ -165,6 +168,7 @@ atom current_location atom current_stacktrace atom data atom debug_flags +atom decimals atom delay_trap atom dexit atom depth @@ -480,6 +484,7 @@ atom scheduler atom scheduler_id atom schedulers_online atom scheme +atom scientific atom scope atom sensitive atom sequential_tracer diff --git a/erts/emulator/beam/beam_load.c b/erts/emulator/beam/beam_load.c index b51f076a5d..8b4135e21d 100644 --- a/erts/emulator/beam/beam_load.c +++ b/erts/emulator/beam/beam_load.c @@ -1230,7 +1230,7 @@ load_atom_table(LoaderState* stp) GetByte(stp, n); GetString(stp, atom, n); - stp->atom[i] = am_atom_put((char*)atom, n); + stp->atom[i] = erts_atom_put(atom, n, ERTS_ATOM_ENC_LATIN1, 1); } /* @@ -1240,7 +1240,7 @@ load_atom_table(LoaderState* stp) if (is_nil(stp->module)) { stp->module = stp->atom[1]; } else if (stp->atom[1] != stp->module) { - char sbuf[256]; + char sbuf[MAX_ATOM_SZ_FROM_LATIN1]; Atom* ap; ap = atom_tab(atom_val(stp->atom[1])); @@ -1620,7 +1620,7 @@ read_line_table(LoaderState* stp) GetInt(stp, 2, n); GetString(stp, fname, n); - stp->fname[i] = am_atom_put((char*)fname, n); + stp->fname[i] = erts_atom_put(fname, n, ERTS_ATOM_ENC_LATIN1, 1); } } diff --git a/erts/emulator/beam/bif.c b/erts/emulator/beam/bif.c index 97c8114437..bde70911a2 100644 --- a/erts/emulator/beam/bif.c +++ b/erts/emulator/beam/bif.c @@ -2604,9 +2604,13 @@ BIF_RETTYPE delete_element_2(BIF_ALIST_3) BIF_RETTYPE atom_to_list_1(BIF_ALIST_1) { - Uint need; - Eterm* hp; Atom* ap; + Uint num_chars, num_built, num_eaten; + byte* err_pos; + Eterm res; +#ifdef DEBUG + int ares; +#endif if (is_not_atom(BIF_ARG_1)) BIF_ERROR(BIF_P, BADARG); @@ -2615,9 +2619,18 @@ BIF_RETTYPE atom_to_list_1(BIF_ALIST_1) ap = atom_tab(atom_val(BIF_ARG_1)); if (ap->len == 0) BIF_RET(NIL); /* the empty atom */ - need = ap->len*2; - hp = HAlloc(BIF_P, need); - BIF_RET(buf_to_intlist(&hp,(char*)ap->name,ap->len, NIL)); + +#ifdef DEBUG + ares = +#endif + erts_analyze_utf8(ap->name, ap->len, &err_pos, &num_chars, NULL); + ASSERT(ares == ERTS_UTF8_OK); + + res = erts_utf8_to_list(BIF_P, num_chars, ap->name, ap->len, ap->len, + &num_built, &num_eaten, NIL); + ASSERT(num_built == num_chars); + ASSERT(num_eaten == ap->len); + BIF_RET(res); } /**********************************************************************/ @@ -2627,18 +2640,19 @@ BIF_RETTYPE atom_to_list_1(BIF_ALIST_1) BIF_RETTYPE list_to_atom_1(BIF_ALIST_1) { Eterm res; - char *buf = (char *) erts_alloc(ERTS_ALC_T_TMP, MAX_ATOM_LENGTH); - int i = intlist_to_buf(BIF_ARG_1, buf, MAX_ATOM_LENGTH); + char *buf = (char *) erts_alloc(ERTS_ALC_T_TMP, MAX_ATOM_CHARACTERS); + int i = intlist_to_buf(BIF_ARG_1, buf, MAX_ATOM_CHARACTERS); if (i < 0) { erts_free(ERTS_ALC_T_TMP, (void *) buf); i = list_length(BIF_ARG_1); - if (i > MAX_ATOM_LENGTH) { + if (i > MAX_ATOM_CHARACTERS) { BIF_ERROR(BIF_P, SYSTEM_LIMIT); } BIF_ERROR(BIF_P, BADARG); } - res = am_atom_put(buf, i); + res = erts_atom_put((byte *) buf, i, ERTS_ATOM_ENC_LATIN1, 1); + ASSERT(is_atom(res)); erts_free(ERTS_ALC_T_TMP, (void *) buf); BIF_RET(res); } @@ -2648,16 +2662,16 @@ BIF_RETTYPE list_to_atom_1(BIF_ALIST_1) BIF_RETTYPE list_to_existing_atom_1(BIF_ALIST_1) { int i; - char *buf = (char *) erts_alloc(ERTS_ALC_T_TMP, MAX_ATOM_LENGTH); + char *buf = (char *) erts_alloc(ERTS_ALC_T_TMP, MAX_ATOM_CHARACTERS); - if ((i = intlist_to_buf(BIF_ARG_1, buf, MAX_ATOM_LENGTH)) < 0) { + if ((i = intlist_to_buf(BIF_ARG_1, buf, MAX_ATOM_CHARACTERS)) < 0) { error: erts_free(ERTS_ALC_T_TMP, (void *) buf); BIF_ERROR(BIF_P, BADARG); } else { Eterm a; - if (erts_atom_get(buf, i, &a)) { + if (erts_atom_get(buf, i, &a, 1)) { erts_free(ERTS_ALC_T_TMP, (void *) buf); BIF_RET(a); } else { @@ -2917,7 +2931,73 @@ BIF_RETTYPE float_to_list_1(BIF_ALIST_1) need = i*2; hp = HAlloc(BIF_P, need); BIF_RET(buf_to_intlist(&hp, fbuf, i, NIL)); - } +} + +BIF_RETTYPE float_to_list_2(BIF_ALIST_2) +{ + const static int arity_two = make_arityval(2); + int decimals = SYS_DEFAULT_FLOAT_DECIMALS; + int compact = 0; + enum fmt_type_ { + FMT_LEGACY, + FMT_FIXED, + FMT_SCIENTIFIC + } fmt_type = FMT_LEGACY; + Eterm list = BIF_ARG_2; + Eterm arg; + int i; + Uint need; + Eterm* hp; + FloatDef f; + char fbuf[256]; + + /* check the arguments */ + if (is_not_float(BIF_ARG_1)) + goto badarg; + + for(; is_list(list); list = CDR(list_val(list))) { + arg = CAR(list_val(list)); + if (arg == am_compact) { + compact = 1; + continue; + } else if (is_tuple(arg)) { + Eterm* tp = tuple_val(arg); + if (*tp == arity_two && is_small(tp[2])) { + decimals = signed_val(tp[2]); + if (decimals > 0 && decimals < sizeof(fbuf) - 6 /* "X." ++ "e+YY" */) + switch (tp[1]) { + case am_decimals: + fmt_type = FMT_FIXED; + continue; + case am_scientific: + fmt_type = FMT_SCIENTIFIC; + continue; + } + } + } + goto badarg; + } + if (is_not_nil(list)) { + goto badarg; + } + + GET_DOUBLE(BIF_ARG_1, f); + + if (fmt_type == FMT_FIXED) { + if ((i = sys_double_to_chars_fast(f.fd, fbuf, sizeof(fbuf), + decimals, compact)) <= 0) + goto badarg; + } else { + if ((i = sys_double_to_chars_ext(f.fd, fbuf, sizeof(fbuf), decimals)) <= 0) + goto badarg; + } + + need = i*2; + hp = HAlloc(BIF_P, need); + BIF_RET(buf_to_intlist(&hp, fbuf, i, NIL)); +badarg: + BIF_ERROR(BIF_P, BADARG); +} /**********************************************************************/ diff --git a/erts/emulator/beam/bif.tab b/erts/emulator/beam/bif.tab index 59a91cd40c..a79feb6da3 100644 --- a/erts/emulator/beam/bif.tab +++ b/erts/emulator/beam/bif.tab @@ -64,6 +64,7 @@ bif erlang:external_size/1 bif erlang:external_size/2 ubif erlang:float/1 bif erlang:float_to_list/1 +bif erlang:float_to_list/2 bif erlang:fun_info/2 bif erlang:garbage_collect/0 bif erlang:garbage_collect/1 diff --git a/erts/emulator/beam/dist.c b/erts/emulator/beam/dist.c index 64cd93a100..145e6861f6 100644 --- a/erts/emulator/beam/dist.c +++ b/erts/emulator/beam/dist.c @@ -1729,7 +1729,7 @@ dsig_send(ErtsDSigData *dsdp, Eterm ctl, Eterm msg, int force_busy) data_size += erts_encode_dist_ext_size(ctl, flags, acmp); if (is_value(msg)) data_size += erts_encode_dist_ext_size(msg, flags, acmp); - erts_finalize_atom_cache_map(acmp); + erts_finalize_atom_cache_map(acmp, flags); dhdr_ext_size = erts_encode_ext_dist_header_size(acmp); data_size += dhdr_ext_size; @@ -2073,7 +2073,8 @@ erts_dist_command(Port *prt, int reds_limit) ASSERT(ob); do { ob->extp = erts_encode_ext_dist_header_finalize(ob->extp, - dep->cache); + dep->cache, + flags); if (!(flags & DFLAG_DIST_HDR_ATOM_CACHE)) *--ob->extp = PASS_THROUGH; /* Old node; 'pass through' needed */ @@ -2117,7 +2118,8 @@ erts_dist_command(Port *prt, int reds_limit) Uint size; oq.first->extp = erts_encode_ext_dist_header_finalize(oq.first->extp, - dep->cache); + dep->cache, + flags); reds += ERTS_PORT_REDS_DIST_CMD_FINALIZE; if (!(flags & DFLAG_DIST_HDR_ATOM_CACHE)) *--oq.first->extp = PASS_THROUGH; /* Old node; 'pass through' diff --git a/erts/emulator/beam/dist.h b/erts/emulator/beam/dist.h index 2bc3d9c881..310d09768d 100644 --- a/erts/emulator/beam/dist.h +++ b/erts/emulator/beam/dist.h @@ -38,7 +38,8 @@ #define DFLAG_UNICODE_IO 0x1000 #define DFLAG_DIST_HDR_ATOM_CACHE 0x2000 #define DFLAG_SMALL_ATOM_TAGS 0x4000 -#define DFLAGS_INTERNAL_TAGS 0x8000 +#define DFLAG_INTERNAL_TAGS 0x8000 +#define DFLAG_UTF8_ATOMS 0x10000 /* All flags that should be enabled when term_to_binary/1 is used. */ #define TERM_TO_BINARY_DFLAGS (DFLAG_EXTENDED_REFERENCES \ diff --git a/erts/emulator/beam/erl_alloc.c b/erts/emulator/beam/erl_alloc.c index 5da8c69c03..007cdbdfa6 100644 --- a/erts/emulator/beam/erl_alloc.c +++ b/erts/emulator/beam/erl_alloc.c @@ -3062,13 +3062,13 @@ erts_request_alloc_info(struct process *c_p, Eterm alloc = CAR(consp); for (ai = ERTS_ALC_A_MIN; ai <= ERTS_ALC_A_MAX; ai++) - if (erts_is_atom_str((char *) erts_alc_a2ad[ai], alloc)) + if (erts_is_atom_str(erts_alc_a2ad[ai], alloc, 0)) goto save_alloc; - if (erts_is_atom_str("mseg_alloc", alloc)) { + if (erts_is_atom_str("mseg_alloc", alloc, 0)) { ai = ERTS_ALC_INFO_A_MSEG_ALLOC; goto save_alloc; } - if (erts_is_atom_str("alloc_util", alloc)) { + if (erts_is_atom_str("alloc_util", alloc, 0)) { ai = ERTS_ALC_INFO_A_ALLOC_UTIL; save_alloc: if (req_ai[ai]) diff --git a/erts/emulator/beam/erl_alloc.types b/erts/emulator/beam/erl_alloc.types index d4de0d076a..3d437652ce 100644 --- a/erts/emulator/beam/erl_alloc.types +++ b/erts/emulator/beam/erl_alloc.types @@ -49,6 +49,8 @@ # true after a "+enable X" statement or if it has been passed as a # command line argument to make_alloc_types. The variable X is false # after a "+disable X" statement or if it has never been mentioned. +# +# IMPORTANT! Only use 7-bit ascii text in this file! +if smp +disable threads_no_smp diff --git a/erts/emulator/beam/erl_alloc_util.c b/erts/emulator/beam/erl_alloc_util.c index 3d6761339b..6de0099636 100644 --- a/erts/emulator/beam/erl_alloc_util.c +++ b/erts/emulator/beam/erl_alloc_util.c @@ -2906,10 +2906,10 @@ make_name_atoms(Allctr_t *allctr) char alloc[] = "alloc"; char realloc[] = "realloc"; char free[] = "free"; - char buf[MAX_ATOM_LENGTH]; + char buf[MAX_ATOM_CHARACTERS]; size_t prefix_len = strlen(allctr->name_prefix); - if (prefix_len > MAX_ATOM_LENGTH + sizeof(realloc) - 1) + if (prefix_len > MAX_ATOM_CHARACTERS + sizeof(realloc) - 1) erl_exit(1,"Too long allocator name: %salloc\n",allctr->name_prefix); memcpy((void *) buf, (void *) allctr->name_prefix, prefix_len); diff --git a/erts/emulator/beam/erl_bif_ddll.c b/erts/emulator/beam/erl_bif_ddll.c index 7cbea55eac..889fefacfc 100644 --- a/erts/emulator/beam/erl_bif_ddll.c +++ b/erts/emulator/beam/erl_bif_ddll.c @@ -1835,7 +1835,10 @@ static Eterm build_load_error_hp(Eterm *hp, int code) static Eterm mkatom(char *str) { - return am_atom_put(str, sys_strlen(str)); + return erts_atom_put((byte *) str, + sys_strlen(str), + ERTS_ATOM_ENC_LATIN1, + 1); } static char *pick_list_or_atom(Eterm name_term) diff --git a/erts/emulator/beam/erl_bif_info.c b/erts/emulator/beam/erl_bif_info.c index fabddffc68..b8026063e6 100755 --- a/erts/emulator/beam/erl_bif_info.c +++ b/erts/emulator/beam/erl_bif_info.c @@ -2298,8 +2298,10 @@ BIF_RETTYPE system_info_1(BIF_ALIST_1) for (i = num_instructions-1; i >= 0; i--) { res = erts_bld_cons(hpp, hszp, erts_bld_tuple(hpp, hszp, 2, - am_atom_put(opc[i].name, - strlen(opc[i].name)), + erts_atom_put(opc[i].name, + strlen(opc[i].name), + ERTS_ATOM_ENC_LATIN1, + 1), erts_bld_uint(hpp, hszp, opc[i].count)), res); @@ -3873,7 +3875,7 @@ static Eterm lcnt_build_lock_stats_term(Eterm **hpp, Uint *szp, erts_lcnt_lock_s timer_ns = stats->timer.ns; timer_n = stats->timer_n; - af = am_atom_put(stats->file, strlen(stats->file)); + af = erts_atom_put(stats->file, strlen(stats->file), ERTS_ATOM_ENC_LATIN1, 1); uil = erts_bld_uint( hpp, szp, line); tloc = erts_bld_tuple(hpp, szp, 2, af, uil); @@ -3910,13 +3912,13 @@ static Eterm lcnt_build_lock_term(Eterm **hpp, Uint *szp, erts_lcnt_lock_t *lock ASSERT(ltype); - type = am_atom_put(ltype, strlen(ltype)); - name = am_atom_put(lock->name, strlen(lock->name)); + type = erts_atom_put(ltype, strlen(ltype), ERTS_ATOM_ENC_LATIN1, 1); + name = erts_atom_put(lock->name, strlen(lock->name), ERTS_ATOM_ENC_LATIN1, 1); if (lock->flag & ERTS_LCNT_LT_ALLOC) { /* use allocator types names as id's for allocator locks */ ltype = (char *) ERTS_ALC_A2AD(signed_val(lock->id)); - id = am_atom_put(ltype, strlen(ltype)); + id = erts_atom_put(ltype, strlen(ltype), ERTS_ATOM_ENC_LATIN1, 1); } else if (lock->flag & ERTS_LCNT_LT_PROCLOCK) { /* use registered names as id's for process locks if available */ proc = erts_proc_lookup(lock->id); @@ -3956,12 +3958,12 @@ static Eterm lcnt_build_result_term(Eterm **hpp, Uint *szp, erts_lcnt_data_t *da dtns = erts_bld_uint( hpp, szp, data->duration.ns); tdt = erts_bld_tuple(hpp, szp, 2, dts, dtns); - adur = am_atom_put(str_duration, strlen(str_duration)); + adur = erts_atom_put(str_duration, strlen(str_duration), ERTS_ATOM_ENC_LATIN1, 1); tdur = erts_bld_tuple(hpp, szp, 2, adur, tdt); /* lock tuple */ - aloc = am_atom_put(str_locks, strlen(str_locks)); + aloc = erts_atom_put(str_locks, strlen(str_locks), ERTS_ATOM_ENC_LATIN1, 1); for (lock = data->current_locks->head; lock != NULL ; lock = lock->next ) { lloc = lcnt_build_lock_term(hpp, szp, lock, lloc); @@ -4097,14 +4099,14 @@ BIF_RETTYPE erts_debug_lock_counters_1(BIF_ALIST_1) static void os_info_init(void) { - Eterm type = am_atom_put(os_type, strlen(os_type)); + Eterm type = erts_atom_put((byte *) os_type, strlen(os_type), ERTS_ATOM_ENC_LATIN1, 1); Eterm flav; int major, minor, build; char* buf = erts_alloc(ERTS_ALC_T_TMP, 1024); /* More than enough */ Eterm* hp; os_flavor(buf, 1024); - flav = am_atom_put(buf, strlen(buf)); + flav = erts_atom_put((byte *) buf, strlen(buf), ERTS_ATOM_ENC_LATIN1, 1); erts_free(ERTS_ALC_T_TMP, (void *) buf); hp = erts_alloc(ERTS_ALC_T_LL_TEMP_TERM, (3+4)*sizeof(Eterm)); os_type_tuple = TUPLE2(hp, type, flav); diff --git a/erts/emulator/beam/erl_bif_port.c b/erts/emulator/beam/erl_bif_port.c index 81146e38d7..a4b837541b 100644 --- a/erts/emulator/beam/erl_bif_port.c +++ b/erts/emulator/beam/erl_bif_port.c @@ -66,7 +66,7 @@ BIF_RETTYPE open_port_2(BIF_ALIST_2) } else { str = "einval"; } - BIF_P->fvalue = am_atom_put(str, strlen(str)); + BIF_P->fvalue = erts_atom_put((byte *) str, strlen(str), ERTS_ATOM_ENC_LATIN1, 1); BIF_ERROR(BIF_P, EXC_ERROR); } diff --git a/erts/emulator/beam/erl_db.c b/erts/emulator/beam/erl_db.c index 48a95cdf32..7932966539 100644 --- a/erts/emulator/beam/erl_db.c +++ b/erts/emulator/beam/erl_db.c @@ -3830,7 +3830,7 @@ erts_ets_colliding_names(Process* p, Eterm name, Uint cnt) while (index >= atom_table_size()) { char tmp[20]; erts_snprintf(tmp, sizeof(tmp), "am%x", atom_table_size()); - am_atom_put(tmp,strlen(tmp)); + erts_atom_put((byte *) tmp, strlen(tmp), ERTS_ATOM_ENC_LATIN1, 1); } list = CONS(hp, make_atom(index), list); hp += 2; diff --git a/erts/emulator/beam/erl_db_util.c b/erts/emulator/beam/erl_db_util.c index bb08762b26..58c4d75c31 100644 --- a/erts/emulator/beam/erl_db_util.c +++ b/erts/emulator/beam/erl_db_util.c @@ -4773,7 +4773,8 @@ static int match_compact(ErlHeapFragment *expr, DMCErrInfo *err_info) ASSERT(j < x); erts_snprintf(buff+1, sizeof(buff) - 1, "%u", (unsigned) j); /* Yes, writing directly into terms, they ARE off heap */ - *p = am_atom_put(buff, strlen(buff)); + *p = erts_atom_put((byte *) buff, strlen(buff), + ERTS_ATOM_ENC_LATIN1, 1); } ++p; } diff --git a/erts/emulator/beam/erl_init.c b/erts/emulator/beam/erl_init.c index b518683730..61b3c09d16 100644 --- a/erts/emulator/beam/erl_init.c +++ b/erts/emulator/beam/erl_init.c @@ -358,7 +358,7 @@ erl_first_process_otp(char* modname, void* code, unsigned size, int argc, char** ErlSpawnOpts so; Eterm env; - start_mod = am_atom_put(modname, sys_strlen(modname)); + start_mod = erts_atom_put((byte *) modname, sys_strlen(modname), ERTS_ATOM_ENC_LATIN1, 1); if (erts_find_function(start_mod, am_start, 2, erts_active_code_ix()) == NULL) { erl_exit(5, "No function %s:start/2\n", modname); @@ -455,7 +455,7 @@ load_preloaded(void) i = 0; while ((name = preload_p[i].name) != NULL) { length = preload_p[i].size; - module_name = am_atom_put(name, sys_strlen(name)); + module_name = erts_atom_put((byte *) name, sys_strlen(name), ERTS_ATOM_ENC_LATIN1, 1); if ((code = sys_preload_begin(&preload_p[i])) == 0) erl_exit(1, "Failed to find preloaded code for module %s\n", name); diff --git a/erts/emulator/beam/erl_nif.c b/erts/emulator/beam/erl_nif.c index 1bd2d933b2..fb295c9a8a 100644 --- a/erts/emulator/beam/erl_nif.c +++ b/erts/emulator/beam/erl_nif.c @@ -743,16 +743,23 @@ int enif_get_atom(ErlNifEnv* env, Eterm atom, char* buf, unsigned len, { Atom* ap; ASSERT(encoding == ERL_NIF_LATIN1); - if (is_not_atom(atom)) { + if (is_not_atom(atom) || len==0) { return 0; } ap = atom_tab(atom_val(atom)); - if (ap->len+1 > len) { + + if (ap->latin1_chars < 0 || ap->latin1_chars >= len) { return 0; } - sys_memcpy(buf, ap->name, ap->len); - buf[ap->len] = '\0'; - return ap->len + 1; + if (ap->latin1_chars == ap->len) { + sys_memcpy(buf, ap->name, ap->len); + } + else { + int dlen = erts_utf8_to_latin1((byte*)buf, ap->name, ap->len); + ASSERT(dlen == ap->latin1_chars); (void)dlen; + } + buf[ap->latin1_chars] = '\0'; + return ap->latin1_chars + 1; } int enif_get_int(ErlNifEnv* env, Eterm term, int* ip) @@ -854,7 +861,10 @@ int enif_get_atom_length(ErlNifEnv* env, Eterm atom, unsigned* len, ASSERT(enc == ERL_NIF_LATIN1); if (is_not_atom(atom)) return 0; ap = atom_tab(atom_val(atom)); - *len = ap->len; + if (ap->latin1_chars < 0) { + return 0; + } + *len = ap->latin1_chars; return 1; } @@ -961,7 +971,7 @@ ERL_NIF_TERM enif_make_atom(ErlNifEnv* env, const char* name) ERL_NIF_TERM enif_make_atom_len(ErlNifEnv* env, const char* name, size_t len) { - return am_atom_put(name, len); + return erts_atom_put((byte*)name, len, ERTS_ATOM_ENC_LATIN1, 1); } int enif_make_existing_atom(ErlNifEnv* env, const char* name, ERL_NIF_TERM* atom, @@ -974,7 +984,7 @@ int enif_make_existing_atom_len(ErlNifEnv* env, const char* name, size_t len, ERL_NIF_TERM* atom, ErlNifCharEncoding encoding) { ASSERT(encoding == ERL_NIF_LATIN1); - return erts_atom_get(name, len, atom); + return erts_atom_get(name, len, atom, 1); } ERL_NIF_TERM enif_make_tuple(ErlNifEnv* env, unsigned cnt, ...) @@ -1633,7 +1643,7 @@ BIF_RETTYPE load_nif_2(BIF_ALIST_2) "this vm variant (%s).", entry->vm_variant, ERL_NIF_VM_VARIANT); } - else if (!erts_is_atom_str((char*)entry->name, mod_atom)) { + else if (!erts_is_atom_str((char*)entry->name, mod_atom, 1)) { ret = load_nif_error(BIF_P, bad_lib, "Library module name '%s' does not" " match calling module '%T'", entry->name, mod_atom); } @@ -1643,7 +1653,7 @@ BIF_RETTYPE load_nif_2(BIF_ALIST_2) for (i=0; i < entry->num_of_funcs && ret==am_ok; i++) { BeamInstr** code_pp; ErlNifFunc* f = &entry->funcs[i]; - if (!erts_atom_get(f->name, sys_strlen(f->name), &f_atom) + if (!erts_atom_get(f->name, sys_strlen(f->name), &f_atom, 1) || (code_pp = get_func_pp(mod->curr.code, f_atom, f->arity))==NULL) { ret = load_nif_error(BIF_P,bad_lib,"Function not found %T:%s/%u", mod_atom, f->name, f->arity); @@ -1746,7 +1756,7 @@ BIF_RETTYPE load_nif_2(BIF_ALIST_2) for (i=0; i < entry->num_of_funcs; i++) { BeamInstr* code_ptr; - erts_atom_get(entry->funcs[i].name, sys_strlen(entry->funcs[i].name), &f_atom); + erts_atom_get(entry->funcs[i].name, sys_strlen(entry->funcs[i].name), &f_atom, 1); code_ptr = *get_func_pp(mod->curr.code, f_atom, entry->funcs[i].arity); if (code_ptr[1] == 0) { diff --git a/erts/emulator/beam/erl_port_task.c b/erts/emulator/beam/erl_port_task.c index 09c8e760f4..82c3e235b4 100644 --- a/erts/emulator/beam/erl_port_task.c +++ b/erts/emulator/beam/erl_port_task.c @@ -38,7 +38,7 @@ /* * ERTS_PORT_CALLBACK_VREDS: Limit the amount of callback calls we do... */ -#define ERTS_PORT_CALLBACK_VREDS (CONTEXT_REDS/5) +#define ERTS_PORT_CALLBACK_VREDS (CONTEXT_REDS/20) #if defined(DEBUG) && 0 #define ERTS_HARD_DEBUG_TASK_QUEUES diff --git a/erts/emulator/beam/erl_unicode.c b/erts/emulator/beam/erl_unicode.c index 51559aea1c..883405d066 100644 --- a/erts/emulator/beam/erl_unicode.c +++ b/erts/emulator/beam/erl_unicode.c @@ -1154,15 +1154,24 @@ BIF_RETTYPE unicode_characters_to_list_2(BIF_ALIST_2) * When input to characters_to_list is a plain binary and the format is 'unicode', we do * a faster analyze and size count with this function. */ -int erts_analyze_utf8(byte *source, Uint size, - byte **err_pos, Uint *num_chars, int *left) +static ERTS_INLINE int +analyze_utf8(byte *source, Uint size, byte **err_pos, Uint *num_chars, int *left, + Sint *num_latin1_chars, Uint max_chars) { + Uint latin1_count; + int is_latin1; *err_pos = source; + if (num_latin1_chars) { + is_latin1 = 1; + latin1_count = 0; + } *num_chars = 0; while (size) { if (((*source) & ((byte) 0x80)) == 0) { source++; - --size; + --size; + if (num_latin1_chars) + latin1_count++; } else if (((*source) & ((byte) 0xE0)) == 0xC0) { if (size < 2) { return ERTS_UTF8_INCOMPLETE; @@ -1171,6 +1180,11 @@ int erts_analyze_utf8(byte *source, Uint size, ((*source) < 0xC2) /* overlong */) { return ERTS_UTF8_ERROR; } + if (num_latin1_chars) { + latin1_count++; + if ((source[0] & ((byte) 0xFC)) != ((byte) 0xC0)) + is_latin1 = 0; + } source += 2; size -= 2; } else if (((*source) & ((byte) 0xF0)) == 0xE0) { @@ -1188,6 +1202,8 @@ int erts_analyze_utf8(byte *source, Uint size, } source += 3; size -= 3; + if (num_latin1_chars) + is_latin1 = 0; } else if (((*source) & ((byte) 0xF8)) == 0xF0) { if (size < 4) { return ERTS_UTF8_INCOMPLETE; @@ -1205,21 +1221,40 @@ int erts_analyze_utf8(byte *source, Uint size, } source += 4; size -= 4; + if (num_latin1_chars) + is_latin1 = 0; } else { return ERTS_UTF8_ERROR; } ++(*num_chars); *err_pos = source; - if (left && --(*left) <= 0) { + if (max_chars && size > 0 && *num_chars == max_chars) + return ERTS_UTF8_OK_MAX_CHARS; + if (left && --(*left) <= 0 && size) { return ERTS_UTF8_ANALYZE_MORE; } } + if (num_latin1_chars) + *num_latin1_chars = is_latin1 ? latin1_count : -1; return ERTS_UTF8_OK; } +int erts_analyze_utf8(byte *source, Uint size, + byte **err_pos, Uint *num_chars, int *left) +{ + return analyze_utf8(source, size, err_pos, num_chars, left, NULL, 0); +} + +int erts_analyze_utf8_x(byte *source, Uint size, + byte **err_pos, Uint *num_chars, int *left, + Sint *num_latin1_chars, Uint max_chars) +{ + return analyze_utf8(source, size, err_pos, num_chars, left, num_latin1_chars, max_chars); +} + /* * No errors should be able to occur - no overlongs, no malformed, no nothing - */ + */ static Eterm do_utf8_to_list(Process *p, Uint num, byte *bytes, Uint sz, Uint left, Uint *num_built, Uint *num_eaten, Eterm tail) @@ -1275,6 +1310,12 @@ static Eterm do_utf8_to_list(Process *p, Uint num, byte *bytes, Uint sz, return ret; } +Eterm erts_utf8_to_list(Process *p, Uint num, byte *bytes, Uint sz, Uint left, + Uint *num_built, Uint *num_eaten, Eterm tail) +{ + return do_utf8_to_list(p, num, bytes, sz, left, num_built, num_eaten, tail); +} + static int is_candidate(Uint cp) { int index,pos; @@ -1812,31 +1853,25 @@ BIF_RETTYPE atom_to_binary_2(BIF_ALIST_2) ap = atom_tab(atom_val(BIF_ARG_1)); if (BIF_ARG_2 == am_latin1) { - BIF_RET(new_binary(BIF_P, ap->name, ap->len)); - } else if (BIF_ARG_2 == am_utf8 || BIF_ARG_2 == am_unicode) { - int bin_size = 0; - int i; Eterm bin_term; - byte* bin_p; - for (i = 0; i < ap->len; i++) { - bin_size += (ap->name[i] >= 0x80) ? 2 : 1; + if (ap->latin1_chars < 0) { + goto error; } - if (bin_size == ap->len) { - BIF_RET(new_binary(BIF_P, ap->name, ap->len)); + if (ap->latin1_chars == ap->len) { + bin_term = new_binary(BIF_P, ap->name, ap->len); } - bin_term = new_binary(BIF_P, 0, bin_size); - bin_p = binary_bytes(bin_term); - for (i = 0; i < ap->len; i++) { - byte b = ap->name[i]; - if (b < 0x80) { - *bin_p++ = b; - } else { - *bin_p++ = 0xC0 | (b >> 6); - *bin_p++ = 0x80 | (b & 0x3F); - } + else { + byte* bin_p; + int dbg_sz; + bin_term = new_binary(BIF_P, 0, ap->latin1_chars); + bin_p = binary_bytes(bin_term); + dbg_sz = erts_utf8_to_latin1(bin_p, ap->name, ap->len); + ASSERT(dbg_sz == ap->latin1_chars); (void)dbg_sz; } BIF_RET(bin_term); + } else if (BIF_ARG_2 == am_utf8 || BIF_ARG_2 == am_unicode) { + BIF_RET(new_binary(BIF_P, ap->name, ap->len)); } else { error: BIF_ERROR(BIF_P, BADARG); @@ -1844,118 +1879,78 @@ BIF_RETTYPE atom_to_binary_2(BIF_ALIST_2) } static BIF_RETTYPE -binary_to_atom(Process* p, Eterm bin, Eterm enc, int must_exist) +binary_to_atom(Process* proc, Eterm bin, Eterm enc, int must_exist) { byte* bytes; byte *temp_alloc = NULL; Uint bin_size; if ((bytes = erts_get_aligned_binary_bytes(bin, &temp_alloc)) == 0) { - BIF_ERROR(p, BADARG); + BIF_ERROR(proc, BADARG); } bin_size = binary_size(bin); if (enc == am_latin1) { Eterm a; - if (bin_size > MAX_ATOM_LENGTH) { + if (bin_size > MAX_ATOM_CHARACTERS) { system_limit: erts_free_aligned_binary_bytes(temp_alloc); - BIF_ERROR(p, SYSTEM_LIMIT); + BIF_ERROR(proc, SYSTEM_LIMIT); } if (!must_exist) { - a = am_atom_put((char *)bytes, bin_size); - erts_free_aligned_binary_bytes(temp_alloc); + a = erts_atom_put((byte *) bytes, + bin_size, + ERTS_ATOM_ENC_LATIN1, + 0); + erts_free_aligned_binary_bytes(temp_alloc); + if (is_non_value(a)) + goto badarg; BIF_RET(a); - } else if (erts_atom_get((char *)bytes, bin_size, &a)) { + } else if (erts_atom_get((char *)bytes, bin_size, &a, 1)) { erts_free_aligned_binary_bytes(temp_alloc); BIF_RET(a); } else { goto badarg; } } else if (enc == am_utf8 || enc == am_unicode) { - char *buf; - char *dst; - int i; - int num_chars; Eterm res; + Uint num_chars = 0; + const byte* p = bytes; + Uint left = bin_size; - if (bin_size > 2*MAX_ATOM_LENGTH) { - byte* err_pos; - Uint n; - int reds_left = bin_size+1; /* Number of reductions left. */ - - if (erts_analyze_utf8(bytes, bin_size, &err_pos, - &n, &reds_left) == ERTS_UTF8_OK) { - /* - * Correct UTF-8 encoding, but too many characters to - * fit in an atom. - */ + while (left) { + if (++num_chars > MAX_ATOM_CHARACTERS) { goto system_limit; - } else { - /* - * Something wrong in the UTF-8 encoding or Unicode code - * points > 255. - */ - goto badarg; } - } - - /* - * Allocate a temporary buffer the same size as the binary, - * so that we don't need an extra overflow test. - */ - buf = (char *) erts_alloc(ERTS_ALC_T_TMP, bin_size); - dst = buf; - for (i = 0; i < bin_size; i++) { - int c = bytes[i]; - if (c < 0x80) { - *dst++ = c; - } else if (i < bin_size-1) { - int c2; - if ((c & 0xE0) != 0xC0) { - goto free_badarg; - } - i++; - c = (c & 0x3F) << 6; - c2 = bytes[i]; - if ((c2 & 0xC0) != 0x80) { - goto free_badarg; - } - c = c | (c2 & 0x3F); - if (0x80 <= c && c < 256) { - *dst++ = c; - } else { - goto free_badarg; - } - } else { - free_badarg: - erts_free(ERTS_ALC_T_TMP, (void *) buf); - goto badarg; + if ((p[0] & 0x80) == 0) { + ++p; + --left; } + else if (left >= 2 + && (p[0] & 0xFE) == 0xC2 /* only allow latin1 subset */ + && (p[1] & 0xC0) == 0x80) { + p += 2; + left -= 2; + } + else goto badarg; } - num_chars = dst - buf; - if (num_chars > MAX_ATOM_LENGTH) { - erts_free(ERTS_ALC_T_TMP, (void *) buf); - goto system_limit; - } + if (!must_exist) { - res = am_atom_put(buf, num_chars); - erts_free(ERTS_ALC_T_TMP, (void *) buf); - erts_free_aligned_binary_bytes(temp_alloc); - BIF_RET(res); - } else { - int exists = erts_atom_get(buf, num_chars, &res); - erts_free(ERTS_ALC_T_TMP, (void *) buf); - if (exists) { - erts_free_aligned_binary_bytes(temp_alloc); - BIF_RET(res); - } else { - goto badarg; - } + res = erts_atom_put((byte *) bytes, + bin_size, + ERTS_ATOM_ENC_UTF8, + 0); + } + else if (!erts_atom_get((char*)bytes, bin_size, &res, 0)) { + goto badarg; } + erts_free_aligned_binary_bytes(temp_alloc); + if (is_non_value(res)) + goto badarg; + BIF_RET(res); } else { badarg: erts_free_aligned_binary_bytes(temp_alloc); - BIF_ERROR(p, BADARG); + BIF_ERROR(proc, BADARG); } } @@ -2670,3 +2665,28 @@ BIF_RETTYPE file_native_name_encoding_0(BIF_ALIST_0) } } +int erts_utf8_to_latin1(byte* dest, const byte* source, int slen) +{ + /* + * Assumes source contains valid utf8 that can be encoded as latin1, + * and that dest has enough room. + */ + byte* dp = dest; + + while (slen > 0) { + if ((source[0] & 0x80) == 0) { + *dp++ = *source++; + --slen; + } + else { + ASSERT(slen > 1); + ASSERT((source[0] & 0xFE) == 0xC2); + ASSERT((source[1] & 0xC0) == 0x80); + *dp++ = (char) ((source[0] << 6) | (source[1] & 0x3F)); + source += 2; + slen -= 2; + } + } + return dp - dest; +} + diff --git a/erts/emulator/beam/external.c b/erts/emulator/beam/external.c index ab1065aaa1..8c4d9108d4 100644 --- a/erts/emulator/beam/external.c +++ b/erts/emulator/beam/external.c @@ -142,6 +142,7 @@ erts_init_atom_cache_map(ErtsAtomCacheMap *acmp) { if (acmp) { int ix; + acmp->long_atoms = 0; for (ix = 0; ix < ERTS_ATOM_CACHE_SIZE; ix++) acmp->cache[ix].iix = -1; acmp->sz = 0; @@ -154,6 +155,7 @@ erts_reset_atom_cache_map(ErtsAtomCacheMap *acmp) { if (acmp) { int i; + acmp->long_atoms = 0; for (i = 0; i < acmp->sz; i++) { ASSERT(0 <= acmp->cix[i] && acmp->cix[i] < ERTS_ATOM_CACHE_SIZE); acmp->cache[acmp->cix[i]].iix = -1; @@ -175,9 +177,23 @@ erts_destroy_atom_cache_map(ErtsAtomCacheMap *acmp) } static ERTS_INLINE void -insert_acache_map(ErtsAtomCacheMap *acmp, Eterm atom) +insert_acache_map(ErtsAtomCacheMap *acmp, Eterm atom, Uint32 dflags) { - if (acmp && acmp->sz < ERTS_MAX_INTERNAL_ATOM_CACHE_ENTRIES) { + /* + * If the receiver do not understand utf8 atoms + * and this atom cannot be represented in latin1, + * we are not allowed to cache it. + * + * In this case all atoms are assumed to have + * latin1 encoding in the cache. By refusing it + * in the cache we will instead encode it using + * ATOM_UTF8_EXT/SMALL_ATOM_UTF8_EXT which the + * receiver do not recognize and tear down the + * connection. + */ + if (acmp && acmp->sz < ERTS_MAX_INTERNAL_ATOM_CACHE_ENTRIES + && ((dflags & DFLAG_UTF8_ATOMS) + || atom_tab(atom_val(atom))->latin1_chars >= 0)) { int ix; ASSERT(acmp->hdr_sz < 0); ix = atom2cix(atom); @@ -190,7 +206,7 @@ insert_acache_map(ErtsAtomCacheMap *acmp, Eterm atom) } static ERTS_INLINE int -get_iix_acache_map(ErtsAtomCacheMap *acmp, Eterm atom) +get_iix_acache_map(ErtsAtomCacheMap *acmp, Eterm atom, Uint32 dflags) { if (!acmp) return -1; @@ -199,7 +215,9 @@ get_iix_acache_map(ErtsAtomCacheMap *acmp, Eterm atom) ASSERT(is_atom(atom)); ix = atom2cix(atom); if (acmp->cache[ix].iix < 0) { - ASSERT(acmp->sz == ERTS_MAX_INTERNAL_ATOM_CACHE_ENTRIES); + ASSERT(acmp->sz == ERTS_MAX_INTERNAL_ATOM_CACHE_ENTRIES + || (!(dflags & DFLAG_UTF8_ATOMS) + && atom_tab(atom_val(atom))->latin1_chars < 0)); return -1; } else { @@ -210,18 +228,17 @@ get_iix_acache_map(ErtsAtomCacheMap *acmp, Eterm atom) } void -erts_finalize_atom_cache_map(ErtsAtomCacheMap *acmp) +erts_finalize_atom_cache_map(ErtsAtomCacheMap *acmp, Uint32 dflags) { if (acmp) { -#if MAX_ATOM_LENGTH > 255 -#error "This code is not complete; long_atoms info need to be passed to the following stages." - int long_atoms = 0; /* !0 if one or more atoms are long than 255. */ -#endif + int utf8_atoms = (int) (dflags & DFLAG_UTF8_ATOMS); + int long_atoms = 0; /* !0 if one or more atoms are longer than 255. */ int i; int sz; int fix_sz = 1 /* VERSION_MAGIC */ + 1 /* DIST_HEADER */ + + 1 /* dist header flags */ + 1 /* number of internal cache entries */ ; int min_sz; @@ -230,22 +247,23 @@ erts_finalize_atom_cache_map(ErtsAtomCacheMap *acmp) min_sz = fix_sz+(2+4)*acmp->sz; sz = fix_sz; for (i = 0; i < acmp->sz; i++) { + Atom *a; Eterm atom; int len; atom = acmp->cache[acmp->cix[i]].atom; ASSERT(is_atom(atom)); - len = atom_tab(atom_val(atom))->len; -#if MAX_ATOM_LENGTH > 255 + a = atom_tab(atom_val(atom)); + len = (int) (utf8_atoms ? a->len : a->latin1_chars); + ASSERT(len >= 0); if (!long_atoms && len > 255) long_atoms = 1; -#endif /* Enough for a new atom cache value */ sz += 1 /* cix */ + 1 /* length */ + len /* text */; } -#if MAX_ATOM_LENGTH > 255 - if (long_atoms) + if (long_atoms) { + acmp->long_atoms = 1; sz += acmp->sz; /* we need 2 bytes per atom for length */ -#endif + } /* Dynamically sized flag field */ sz += ERTS_DIST_HDR_ATOM_CACHE_FLAG_BYTES(acmp->sz); if (sz < min_sz) @@ -274,6 +292,7 @@ byte *erts_encode_ext_dist_header_setup(byte *ctl_ext, ErtsAtomCacheMap *acmp) else { int i; byte *ep = ctl_ext; + byte dist_hdr_flags = acmp->long_atoms ? ERTS_DIST_HDR_LONG_ATOMS_FLG : 0; ASSERT(acmp->hdr_sz >= 0); /* * Write cache update instructions. Note that this is a purely @@ -296,28 +315,36 @@ byte *erts_encode_ext_dist_header_setup(byte *ctl_ext, ErtsAtomCacheMap *acmp) } --ep; put_int8(acmp->sz, ep); + --ep; + put_int8(dist_hdr_flags, ep); *--ep = DIST_HEADER; *--ep = VERSION_MAGIC; return ep; } } -byte *erts_encode_ext_dist_header_finalize(byte *ext, ErtsAtomCache *cache) +byte *erts_encode_ext_dist_header_finalize(byte *ext, ErtsAtomCache *cache, Uint32 dflags) { byte *ip; byte instr_buf[(2+4)*ERTS_ATOM_CACHE_SIZE]; int ci, sz; + byte dist_hdr_flags; + int long_atoms; + int utf8_atoms = (int) (dflags & DFLAG_UTF8_ATOMS); register byte *ep = ext; ASSERT(ep[0] == VERSION_MAGIC); if (ep[1] != DIST_HEADER) return ext; + dist_hdr_flags = ep[2]; + long_atoms = ERTS_DIST_HDR_LONG_ATOMS_FLG & ((int) dist_hdr_flags); + /* * Update output atom cache and write the external version of * the dist header. We write the header backwards just * before the actual term(s). */ - ep += 2; + ep += 3; ci = (int) get_int8(ep); ASSERT(0 <= ci && ci < ERTS_ATOM_CACHE_SIZE); ep += 1; @@ -342,12 +369,7 @@ byte *erts_encode_ext_dist_header_finalize(byte *ext, ErtsAtomCache *cache) flgs_bytes = ERTS_DIST_HDR_ATOM_CACHE_FLAG_BYTES(ci); ASSERT(flgs_bytes <= sizeof(flgs_buf)); -#if MAX_ATOM_LENGTH > 255 - /* long_atoms info needs to be passed from previous stages */ - if (long_atoms) - flgs |= ERTS_DIST_HDR_LONG_ATOMS_FLG; -#endif - flgs = 0; + flgs = (Uint32) dist_hdr_flags; flgs_buf_ix = 0; if ((ci & 1) == 0) used_half_bytes = 2; @@ -382,17 +404,22 @@ byte *erts_encode_ext_dist_header_finalize(byte *ext, ErtsAtomCache *cache) Atom *a; cache->out_arr[cix] = atom; a = atom_tab(atom_val(atom)); - sz = a->len; - ep -= sz; - sys_memcpy((void *) ep, (void *) a->name, sz); -#if MAX_ATOM_LENGTH > 255 + if (utf8_atoms) { + sz = a->len; + ep -= sz; + sys_memcpy((void *) ep, (void *) a->name, sz); + } + else { + ASSERT(0 <= a->latin1_chars && a->latin1_chars <= MAX_ATOM_CHARACTERS); + ep -= a->latin1_chars; + sz = erts_utf8_to_latin1(ep, a->name, a->len); + ASSERT(a->latin1_chars == sz); + } if (long_atoms) { ep -= 2; put_int16(sz, ep); } - else -#endif - { + else { ASSERT(0 <= sz && sz <= 255); --ep; put_int8(sz, ep); @@ -467,7 +494,7 @@ Uint erts_encode_ext_size_2(Eterm term, unsigned dflags) Uint erts_encode_ext_size_ets(Eterm term) { - return encode_size_struct2(NULL, term, TERM_TO_BINARY_DFLAGS|DFLAGS_INTERNAL_TAGS); + return encode_size_struct2(NULL, term, TERM_TO_BINARY_DFLAGS|DFLAG_INTERNAL_TAGS); } @@ -500,7 +527,7 @@ void erts_encode_ext(Eterm term, byte **ext) byte* erts_encode_ext_ets(Eterm term, byte *ep, struct erl_off_heap_header** off_heap) { - return enc_term(NULL, term, ep, TERM_TO_BINARY_DFLAGS|DFLAGS_INTERNAL_TAGS, + return enc_term(NULL, term, ep, TERM_TO_BINARY_DFLAGS|DFLAG_INTERNAL_TAGS, off_heap); } @@ -553,6 +580,7 @@ erts_prepare_dist_ext(ErtsDistExternal *edep, #endif register byte *ep = ext; + int utf8_atoms = (int) (dep->flags & DFLAG_UTF8_ATOMS); edep->heap_size = -1; edep->ext_endp = ext+size; @@ -611,9 +639,7 @@ erts_prepare_dist_ext(ErtsDistExternal *edep, ERTS_EXT_HDR_FAIL; ep++; if (no_atoms) { -#if MAX_ATOM_LENGTH > 255 int long_atoms = 0; -#endif #ifdef DEBUG byte *flgs_buf = ep; #endif @@ -632,14 +658,8 @@ erts_prepare_dist_ext(ErtsDistExternal *edep, */ byte_ix = ERTS_DIST_HDR_ATOM_CACHE_FLAG_BYTE_IX(no_atoms); bit_ix = ERTS_DIST_HDR_ATOM_CACHE_FLAG_BIT_IX(no_atoms); - if (flgsp[byte_ix] & (((byte) ERTS_DIST_HDR_LONG_ATOMS_FLG) - << bit_ix)) { -#if MAX_ATOM_LENGTH > 255 + if (flgsp[byte_ix] & (((byte) ERTS_DIST_HDR_LONG_ATOMS_FLG) << bit_ix)) long_atoms = 1; -#else - ERTS_EXT_HDR_FAIL; /* Long atoms not supported yet */ -#endif - } #ifdef DEBUG byte_ix = 0; @@ -707,23 +727,25 @@ erts_prepare_dist_ext(ErtsDistExternal *edep, if (cix >= ERTS_ATOM_CACHE_SIZE) ERTS_EXT_HDR_FAIL; ep++; -#if MAX_ATOM_LENGTH > 255 if (long_atoms) { CHKSIZE(2); len = get_int16(ep); ep += 2; } - else -#endif - { + else { CHKSIZE(1); len = get_int8(ep); ep++; } - if (len > MAX_ATOM_LENGTH) - ERTS_EXT_HDR_FAIL; /* Too long atom */ CHKSIZE(len); - atom = am_atom_put((char *) ep, len); + atom = erts_atom_put((byte *) ep, + len, + (utf8_atoms + ? ERTS_ATOM_ENC_UTF8 + : ERTS_ATOM_ENC_LATIN1), + 0); + if (is_non_value(atom)) + ERTS_EXT_HDR_FAIL; ep += len; cache->in_arr[cix] = atom; edep->attab.atom[tix] = atom; @@ -1404,11 +1426,12 @@ static byte* enc_atom(ErtsAtomCacheMap *acmp, Eterm atom, byte *ep, Uint32 dflags) { int iix; - int i, j; + int len; + int utf8_atoms = (int) (dflags & DFLAG_UTF8_ATOMS); ASSERT(is_atom(atom)); - if (dflags & DFLAGS_INTERNAL_TAGS) { + if (dflags & DFLAG_INTERNAL_TAGS) { Uint aval = atom_val(atom); ASSERT(aval < (1<<24)); if (aval >= (1 << 16)) { @@ -1423,27 +1446,46 @@ enc_atom(ErtsAtomCacheMap *acmp, Eterm atom, byte *ep, Uint32 dflags) } return ep; } + /* * term_to_binary/1,2 and the initial distribution message * don't use the cache. */ - iix = get_iix_acache_map(acmp, atom); - if (iix < 0) { - i = atom_val(atom); - j = atom_tab(i)->len; - if ((MAX_ATOM_LENGTH <= 255 || j <= 255) - && (dflags & DFLAG_SMALL_ATOM_TAGS)) { - *ep++ = SMALL_ATOM_EXT; - put_int8(j, ep); - ep++; + + iix = get_iix_acache_map(acmp, atom, dflags); + if (iix < 0) { + Atom *a = atom_tab(atom_val(atom)); + if (utf8_atoms || a->latin1_chars < 0) { + len = a->len; + if (len > 255) { + *ep++ = ATOM_UTF8_EXT; + put_int16(len, ep); + ep += 2; + } + else { + *ep++ = SMALL_ATOM_UTF8_EXT; + put_int8(len, ep); + ep += 1; + } + sys_memcpy((char *) ep, (char *) a->name, len); } else { - *ep++ = ATOM_EXT; - put_int16(j, ep); - ep += 2; + if (a->latin1_chars <= 255 && (dflags & DFLAG_SMALL_ATOM_TAGS)) { + *ep++ = SMALL_ATOM_EXT; + len = erts_utf8_to_latin1(ep+1, a->name, a->len); + ASSERT(len == a->latin1_chars); + put_int8(len, ep); + ep++; + } + else { + *ep++ = ATOM_EXT; + len = erts_utf8_to_latin1(ep+2, a->name, a->len); + ASSERT(len == a->latin1_chars); + put_int16(len, ep); + ep += 2; + } } - sys_memcpy((char *) ep, (char*)atom_tab(i)->name, (int) j); - ep += j; + ep += len; return ep; } @@ -1472,7 +1514,7 @@ enc_pid(ErtsAtomCacheMap *acmp, Eterm pid, byte* ep, Uint32 dflags) ep += 4; put_int32(os, ep); ep += 4; - *ep++ = (is_internal_pid(pid) && (dflags & DFLAGS_INTERNAL_TAGS)) ? + *ep++ = (is_internal_pid(pid) && (dflags & DFLAG_INTERNAL_TAGS)) ? INTERNAL_CREATION : pid_creation(pid); return ep; } @@ -1482,7 +1524,7 @@ static byte* dec_atom(ErtsDistExternal *edep, byte* ep, Eterm* objp) { Uint len; - int n; + int n, is_latin1; switch (*ep++) { case ATOM_CACHE_REF: @@ -1498,17 +1540,37 @@ dec_atom(ErtsDistExternal *edep, byte* ep, Eterm* objp) case ATOM_EXT: len = get_int16(ep), ep += 2; + is_latin1 = 1; goto dec_atom_common; case SMALL_ATOM_EXT: len = get_int8(ep); ep++; + is_latin1 = 1; + goto dec_atom_common; + case ATOM_UTF8_EXT: + len = get_int16(ep), + ep += 2; + is_latin1 = 0; + goto dec_atom_common; + case SMALL_ATOM_UTF8_EXT: + len = get_int8(ep), + ep++; + is_latin1 = 0; dec_atom_common: if (edep && (edep->flags & ERTS_DIST_EXT_BTT_SAFE)) { - if (!erts_atom_get((char*)ep, len, objp)) { + if (!erts_atom_get((char*)ep, len, objp, is_latin1)) { goto error; } } else { - *objp = am_atom_put((char*)ep, len); + Eterm atom = erts_atom_put(ep, + len, + (is_latin1 + ? ERTS_ATOM_ENC_LATIN1 + : ERTS_ATOM_ENC_UTF8), + 0); + if (is_non_value(atom)) + goto error; + *objp = atom; } ep += len; break; @@ -1770,7 +1832,7 @@ enc_term(ErtsAtomCacheMap *acmp, Eterm obj, byte* ep, Uint32 dflags, put_int16(i, ep); ep += 2; ep = enc_atom(acmp,ref_node_name(obj),ep,dflags); - *ep++ = ((dflags & DFLAGS_INTERNAL_TAGS) && is_internal_ref(obj)) ? + *ep++ = ((dflags & DFLAG_INTERNAL_TAGS) && is_internal_ref(obj)) ? INTERNAL_CREATION : ref_creation(obj); ref_num = ref_numbers(obj); for (j = 0; j < i; j++) { @@ -1787,7 +1849,7 @@ enc_term(ErtsAtomCacheMap *acmp, Eterm obj, byte* ep, Uint32 dflags, j = port_number(obj); put_int32(j, ep); ep += 4; - *ep++ = ((dflags & DFLAGS_INTERNAL_TAGS) && is_internal_port(obj)) ? + *ep++ = ((dflags & DFLAG_INTERNAL_TAGS) && is_internal_port(obj)) ? INTERNAL_CREATION : port_creation(obj); break; @@ -1868,7 +1930,7 @@ enc_term(ErtsAtomCacheMap *acmp, Eterm obj, byte* ep, Uint32 dflags, byte* bytes; ERTS_GET_BINARY_BYTES(obj, bytes, bitoffs, bitsize); - if (dflags & DFLAGS_INTERNAL_TAGS) { + if (dflags & DFLAG_INTERNAL_TAGS) { ProcBin* pb = (ProcBin*) binary_val(obj); Uint bytesize = pb->size; if (pb->thing_word == HEADER_SUB_BIN) { @@ -2113,7 +2175,7 @@ static byte* dec_term(ErtsDistExternal *edep, Eterm** hpp, byte* ep, ErlOffHeap* off_heap, Eterm* objp) { Eterm* hp_saved = *hpp; - int n; + int n, is_latin1; register Eterm* hp = *hpp; /* Please don't take the address of hp */ Eterm* next = objp; @@ -2199,17 +2261,37 @@ dec_term(ErtsDistExternal *edep, Eterm** hpp, byte* ep, ErlOffHeap* off_heap, Et case ATOM_EXT: n = get_int16(ep); ep += 2; - goto dec_term_atom_common; + is_latin1 = 1; + goto dec_term_atom_common; case SMALL_ATOM_EXT: n = get_int8(ep); ep++; + is_latin1 = 1; + goto dec_term_atom_common; + case ATOM_UTF8_EXT: + n = get_int16(ep); + ep += 2; + is_latin1 = 0; + goto dec_term_atom_common; + case SMALL_ATOM_UTF8_EXT: + n = get_int8(ep); + ep++; + is_latin1 = 0; dec_term_atom_common: if (edep && (edep->flags & ERTS_DIST_EXT_BTT_SAFE)) { - if (!erts_atom_get((char*)ep, n, objp)) { + if (!erts_atom_get((char*)ep, n, objp, is_latin1)) { goto error; } } else { - *objp = am_atom_put((char*)ep, n); + Eterm atom = erts_atom_put(ep, + n, + (is_latin1 + ? ERTS_ATOM_ENC_LATIN1 + : ERTS_ATOM_ENC_UTF8), + 0); + if (is_non_value(atom)) + goto error; + *objp = atom; } ep += n; break; @@ -2869,7 +2951,7 @@ encode_size_struct2(ErtsAtomCacheMap *acmp, Eterm obj, unsigned dflags) result++; break; case ATOM_DEF: - if (dflags & DFLAGS_INTERNAL_TAGS) { + if (dflags & DFLAG_INTERNAL_TAGS) { if (atom_val(obj) >= (1<<16)) { result += 1 + 3; } @@ -2878,17 +2960,22 @@ encode_size_struct2(ErtsAtomCacheMap *acmp, Eterm obj, unsigned dflags) } } else { - int alen = atom_tab(atom_val(obj))->len; - if ((MAX_ATOM_LENGTH <= 255 || alen <= 255) - && (dflags & DFLAG_SMALL_ATOM_TAGS)) { - /* Make sure a SMALL_ATOM_EXT fits: SMALL_ATOM_EXT l t1 t2... */ - result += 1 + 1 + alen; + Atom *a = atom_tab(atom_val(obj)); + int alen; + if ((dflags & DFLAG_UTF8_ATOMS) || a->latin1_chars < 0) { + alen = a->len; + result += 1 + 1 + alen; + if (alen > 255) { + result++; /* ATOM_UTF8_EXT (not small) */ + } } else { - /* Make sure an ATOM_EXT fits: ATOM_EXT l1 l0 t1 t2... */ - result += 1 + 2 + alen; + alen = a->latin1_chars; + result += 1 + 1 + alen; + if (alen > 255 || !(dflags & DFLAG_SMALL_ATOM_TAGS)) + result++; /* ATOM_EXT (not small) */ } - insert_acache_map(acmp, obj); + insert_acache_map(acmp, obj, dflags); } break; case SMALL_DEF: @@ -2969,7 +3056,7 @@ encode_size_struct2(ErtsAtomCacheMap *acmp, Eterm obj, unsigned dflags) } break; case BINARY_DEF: - if (dflags & DFLAGS_INTERNAL_TAGS) { + if (dflags & DFLAG_INTERNAL_TAGS) { ProcBin* pb = (ProcBin*) binary_val(obj); Uint sub_extra = 0; Uint tot_bytes = pb->size; @@ -3058,6 +3145,17 @@ encode_size_struct2(ErtsAtomCacheMap *acmp, Eterm obj, unsigned dflags) return result; } +static int is_valid_utf8_atom(byte* bytes, Uint nbytes) +{ + byte* err_pos; + Uint num_chars; + + /*SVERK Do we really need to validate correct utf8? */ + return nbytes <= MAX_ATOM_SZ_LIMIT + && erts_analyze_utf8(bytes, nbytes, &err_pos, &num_chars, NULL) == ERTS_UTF8_OK + && num_chars <= MAX_ATOM_CHARACTERS; +} + static Sint decoded_size(byte *ep, byte* endp, int internal_tags) { @@ -3125,21 +3223,41 @@ decoded_size(byte *ep, byte* endp, int internal_tags) case ATOM_EXT: CHKSIZE(2); n = get_int16(ep); - if (n > MAX_ATOM_LENGTH) { + if (n > MAX_ATOM_CHARACTERS) { return -1; } SKIP(n+2+atom_extra_skip); atom_extra_skip = 0; break; + case ATOM_UTF8_EXT: + CHKSIZE(2); + n = get_int16(ep); + ep += 2; + if (!is_valid_utf8_atom(ep, n)) { + return -1; + } + SKIP(n+atom_extra_skip); + atom_extra_skip = 0; + break; case SMALL_ATOM_EXT: CHKSIZE(1); n = get_int8(ep); - if (n > MAX_ATOM_LENGTH) { + if (n > MAX_ATOM_CHARACTERS) { return -1; } SKIP(n+1+atom_extra_skip); atom_extra_skip = 0; break; + case SMALL_ATOM_UTF8_EXT: + CHKSIZE(1); + n = get_int8(ep); + ep++; + if (!is_valid_utf8_atom(ep, n)) { + return -1; + } + SKIP(n+atom_extra_skip); + atom_extra_skip = 0; + break; case ATOM_CACHE_REF: SKIP(1+atom_extra_skip); atom_extra_skip = 0; diff --git a/erts/emulator/beam/external.h b/erts/emulator/beam/external.h index eddd4571dd..ad430117c8 100644 --- a/erts/emulator/beam/external.h +++ b/erts/emulator/beam/external.h @@ -51,6 +51,8 @@ #define NEW_FUN_EXT 'p' #define EXPORT_EXT 'q' #define FUN_EXT 'u' +#define ATOM_UTF8_EXT 'v' +#define SMALL_ATOM_UTF8_EXT 'w' #define DIST_HEADER 'D' #define ATOM_CACHE_REF 'R' @@ -90,6 +92,7 @@ typedef struct cache { typedef struct { int hdr_sz; int sz; + int long_atoms; int cix[ERTS_ATOM_CACHE_SIZE]; struct { Eterm atom; @@ -150,12 +153,12 @@ typedef struct { void erts_init_atom_cache_map(ErtsAtomCacheMap *); void erts_reset_atom_cache_map(ErtsAtomCacheMap *); void erts_destroy_atom_cache_map(ErtsAtomCacheMap *); -void erts_finalize_atom_cache_map(ErtsAtomCacheMap *); +void erts_finalize_atom_cache_map(ErtsAtomCacheMap *, Uint32); Uint erts_encode_ext_dist_header_size(ErtsAtomCacheMap *); Uint erts_encode_ext_dist_header_size(ErtsAtomCacheMap *); byte *erts_encode_ext_dist_header_setup(byte *, ErtsAtomCacheMap *); -byte *erts_encode_ext_dist_header_finalize(byte *, ErtsAtomCache *); +byte *erts_encode_ext_dist_header_finalize(byte *, ErtsAtomCache *, Uint32); Uint erts_encode_dist_ext_size(Eterm, Uint32, ErtsAtomCacheMap *); void erts_encode_dist_ext(Eterm, byte **, Uint32, ErtsAtomCacheMap *); diff --git a/erts/emulator/beam/global.h b/erts/emulator/beam/global.h index 298241618f..41c2a0f2b9 100755 --- a/erts/emulator/beam/global.h +++ b/erts/emulator/beam/global.h @@ -786,16 +786,23 @@ Sint erts_native_filename_need(Eterm ioterm, int encoding); void erts_copy_utf8_to_utf16_little(byte *target, byte *bytes, int num_chars); int erts_analyze_utf8(byte *source, Uint size, byte **err_pos, Uint *num_chars, int *left); +int erts_analyze_utf8_x(byte *source, Uint size, + byte **err_pos, Uint *num_chars, int *left, + Sint *num_latin1_chars, Uint max_chars); char *erts_convert_filename_to_native(Eterm name, char *statbuf, size_t statbuf_size, ErtsAlcType_t alloc_type, int allow_empty, int allow_atom, Sint *used /* out */); Eterm erts_convert_native_to_filename(Process *p, byte *bytes); +Eterm erts_utf8_to_list(Process *p, Uint num, byte *bytes, Uint sz, Uint left, + Uint *num_built, Uint *num_eaten, Eterm tail); +int erts_utf8_to_latin1(byte* dest, const byte* source, int slen); #define ERTS_UTF8_OK 0 #define ERTS_UTF8_INCOMPLETE 1 #define ERTS_UTF8_ERROR 2 #define ERTS_UTF8_ANALYZE_MORE 3 +#define ERTS_UTF8_OK_MAX_CHARS 4 void bin_write(int, void*, byte*, size_t); int intlist_to_buf(Eterm, char*, int); /* most callers pass plain char*'s */ diff --git a/erts/emulator/beam/io.c b/erts/emulator/beam/io.c index 04dc9bb236..536a3cc819 100644 --- a/erts/emulator/beam/io.c +++ b/erts/emulator/beam/io.c @@ -663,8 +663,11 @@ erts_open_driver(erts_driver_t* driver, /* Pointer to driver. */ if (IS_TRACED_FL(port, F_TRACE_PORTS)) { trace_port_open(port, - pid, - am_atom_put(port->name, strlen(port->name))); + pid, + erts_atom_put((byte *) port->name, + strlen(port->name), + ERTS_ATOM_ENC_LATIN1, + 1)); } error_number = error_type = 0; @@ -2677,8 +2680,11 @@ static ERTS_INLINE void lcnt_enable_drv_lock_count(erts_driver_t *dp, int enable erts_lcnt_init_lock_x(&dp->lock->lcnt, "driver_lock", ERTS_LCNT_LT_MUTEX, - am_atom_put(dp->name, - sys_strlen(dp->name))); + erts_atom_put((byte*)dp->name, + sys_strlen(dp->name), + ERTS_ATOM_ENC_LATIN1, + 1)); + else erts_lcnt_destroy_lock(&dp->lock->lcnt); @@ -7043,7 +7049,8 @@ int driver_exit(ErlDrvPort ix, int err) return driver_failure_term(ix, am_normal, 0); else { char* err_str = erl_errno_id(err); - Eterm am_err = am_atom_put(err_str, sys_strlen(err_str)); + Eterm am_err = erts_atom_put((byte *) err_str, sys_strlen(err_str), + ERTS_ATOM_ENC_LATIN1, 1); return driver_failure_term(ix, am_err, 0); } } @@ -7056,8 +7063,12 @@ int driver_failure(ErlDrvPort ix, int code) int driver_failure_atom(ErlDrvPort ix, char* string) { - Eterm am = am_atom_put(string, strlen(string)); - return driver_failure_term(ix, am, 0); + return driver_failure_term(ix, + erts_atom_put((byte *) string, + strlen(string), + ERTS_ATOM_ENC_LATIN1, + 1), + 0); } int driver_failure_posix(ErlDrvPort ix, int err) @@ -7074,7 +7085,10 @@ int driver_failure_eof(ErlDrvPort ix) ErlDrvTermData driver_mk_atom(char* string) { - Eterm am = am_atom_put(string, sys_strlen(string)); + Eterm am = erts_atom_put((byte *) string, + sys_strlen(string), + ERTS_ATOM_ENC_LATIN1, + 1); ERTS_SMP_CHK_NO_PROC_LOCKS; return (ErlDrvTermData) am; } @@ -7369,7 +7383,10 @@ init_driver(erts_driver_t *drv, ErlDrvEntry *de, DE_Handle *handle) erts_mtx_init_x(drv->lock, "driver_lock", #if defined(ERTS_ENABLE_LOCK_CHECK) || defined(ERTS_ENABLE_LOCK_COUNT) - am_atom_put(drv->name, sys_strlen(drv->name)) + erts_atom_put((byte *) drv->name, + sys_strlen(drv->name), + ERTS_ATOM_ENC_LATIN1, + 1) #else NIL #endif diff --git a/erts/emulator/beam/sys.h b/erts/emulator/beam/sys.h index 898a30b010..cecaff54a4 100644 --- a/erts/emulator/beam/sys.h +++ b/erts/emulator/beam/sys.h @@ -729,9 +729,12 @@ char * getenv_string(GETENV_STATE *); void fini_getenv_state(GETENV_STATE *); /* xxxP */ +#define SYS_DEFAULT_FLOAT_DECIMALS 20 void init_sys_float(void); int sys_chars_to_double(char*, double*); int sys_double_to_chars(double, char*, size_t); +int sys_double_to_chars_ext(double, char*, size_t, size_t); +int sys_double_to_chars_fast(double, char*, int, int, int); void sys_get_pid(char *, size_t); /* erts_sys_putenv() returns, 0 on success and a value != 0 on failure. */ diff --git a/erts/emulator/beam/time.c b/erts/emulator/beam/time.c index 932d157cd8..e8cd4a3a02 100644 --- a/erts/emulator/beam/time.c +++ b/erts/emulator/beam/time.c @@ -105,7 +105,14 @@ static ErlTimer *tiw_min_ptr; /* END tiw_lock protected variables */ /* Actual interval time chosen by sys_init_time() */ -static int itime; /* Constant after init */ + +#if SYS_CLOCK_RESOLUTION == 1 +# define TIW_ITIME 1 +# define TIW_ITIME_IS_CONSTANT +#else +static int tiw_itime; /* Constant after init */ +# define TIW_ITIME tiw_itime +#endif erts_smp_atomic32_t do_time; /* set at clock interrupt */ static ERTS_INLINE erts_short_time_t do_time_read(void) @@ -123,7 +130,7 @@ static ERTS_INLINE void do_time_init(void) erts_smp_atomic32_init_nob(&do_time, 0); } -/* get the time (in units of itime) to the next timeout, +/* get the time (in units of TIW_ITIME) to the next timeout, or -1 if there are no timeouts */ static erts_short_time_t next_time_internal(void) /* PRE: tiw_lock taken by caller */ @@ -305,11 +312,18 @@ erts_timer_wheel_memory_size(void) void erts_init_time(void) { - int i; + int i, itime; /* system dependent init; must be done before do_time_init() if timer thread is enabled */ itime = erts_init_time_sup(); +#ifdef TIW_ITIME_IS_CONSTANT + if (itime != TIW_ITIME) { + erl_exit(ERTS_ABORT_EXIT, "timer resolution mismatch %d != %d", itime, TIW_ITIME); + } +#else + tiw_itime = itime; +#endif erts_smp_mtx_init(&tiw_lock, "timer_wheel"); @@ -340,7 +354,7 @@ insert_timer(ErlTimer* p, Uint t) * * (x + y - 1)/y is precisely the "number of bins" formula. */ - ticks = (t + itime - 1) / itime; + ticks = (t + (TIW_ITIME - 1)) / TIW_ITIME; /* * Ticks must be a Uint64, or the addition may overflow here, @@ -455,7 +469,7 @@ erts_time_left(ErlTimer *p) erts_smp_mtx_unlock(&tiw_lock); - return (Uint) left * itime; + return (Uint) left * TIW_ITIME; } #ifdef DEBUG diff --git a/erts/emulator/beam/utils.c b/erts/emulator/beam/utils.c index 5261effef9..2a6a8efd4d 100644 --- a/erts/emulator/beam/utils.c +++ b/erts/emulator/beam/utils.c @@ -371,7 +371,7 @@ Eterm erts_bld_atom(Uint **hpp, Uint *szp, char *str) { if (hpp) - return am_atom_put(str, sys_strlen(str)); + return erts_atom_put((byte *) str, sys_strlen(str), ERTS_ATOM_ENC_LATIN1, 1); else return THE_NON_VALUE; } |