3 * Copyright (c) 1991-1997, Larry Wall
5 * You may distribute under the terms of either the GNU General Public
6 * License or the Artistic License, as specified in the README file.
11 * "Very useful, no doubt, that was to Saruman; yet it seems that he was
12 * not content." --Gandalf
18 #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX)
23 # define SIG_ERR ((Sighandler_t) -1)
26 /* XXX If this causes problems, set i_unistd=undef in the hint file. */
35 /* Put this after #includes because fork and vfork prototypes may
46 # include <sys/file.h>
50 # include <sys/wait.h>
56 static void xstat _((void));
60 static U32 threadnum = 0;
61 #endif /* USE_THREADS */
65 /* paranoid version of malloc */
67 /* NOTE: Do not call the next three routines directly. Use the macros
68 * in handy.h, so that we can easily redefine everything to do tracking of
69 * allocated hunks back to the original New to track down any memory leaks.
70 * XXX This advice seems to be widely ignored :-( --AD August 1996.
80 PerlIO_printf(PerlIO_stderr(), "Allocation too large: %lx\n", size) FLUSH;
83 #endif /* HAS_64K_LIMIT */
86 croak("panic: malloc");
88 ptr = malloc(size?size:1); /* malloc(0) is NASTY on our system */
89 #if !(defined(I286) || defined(atarist))
90 DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%x: (%05d) malloc %ld bytes\n",ptr,an++,(long)size));
92 DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) malloc %ld bytes\n",ptr,an++,(long)size));
99 PerlIO_puts(PerlIO_stderr(),no_mem) FLUSH;
105 /* paranoid version of realloc */
108 saferealloc(where,size)
113 #if !defined(STANDARD_C) && !defined(HAS_REALLOC_PROTOTYPE)
115 #endif /* !defined(STANDARD_C) && !defined(HAS_REALLOC_PROTOTYPE) */
119 PerlIO_printf(PerlIO_stderr(),
120 "Reallocation too large: %lx\n", size) FLUSH;
123 #endif /* HAS_64K_LIMIT */
125 croak("Null realloc");
128 croak("panic: realloc");
130 ptr = realloc(where,size?size:1); /* realloc(0) is NASTY on our system */
132 #if !(defined(I286) || defined(atarist))
134 PerlIO_printf(Perl_debug_log, "0x%x: (%05d) rfree\n",where,an++);
135 PerlIO_printf(Perl_debug_log, "0x%x: (%05d) realloc %ld bytes\n",ptr,an++,(long)size);
139 PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) rfree\n",where,an++);
140 PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) realloc %ld bytes\n",ptr,an++,(long)size);
149 PerlIO_puts(PerlIO_stderr(),no_mem) FLUSH;
155 /* safe version of free */
161 #if !(defined(I286) || defined(atarist))
162 DEBUG_m( PerlIO_printf(Perl_debug_log, "0x%x: (%05d) free\n",where,an++));
164 DEBUG_m( PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) free\n",where,an++));
172 /* safe version of calloc */
175 safecalloc(count, size)
182 if (size * count > 0xffff) {
183 PerlIO_printf(PerlIO_stderr(),
184 "Allocation too large: %lx\n", size * count) FLUSH;
187 #endif /* HAS_64K_LIMIT */
189 if ((long)size < 0 || (long)count < 0)
190 croak("panic: calloc");
193 ptr = malloc(size?size:1); /* malloc(0) is NASTY on our system */
194 #if !(defined(I286) || defined(atarist))
195 DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%x: (%05d) calloc %ld x %ld bytes\n",ptr,an++,(long)count,(long)size));
197 DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) calloc %ld x %ld bytes\n",ptr,an++,(long)count,(long)size));
200 memset((void*)ptr, 0, size);
206 PerlIO_puts(PerlIO_stderr(),no_mem) FLUSH;
212 #endif /* !MYMALLOC */
216 #define ALIGN sizeof(long)
223 register Malloc_t where;
225 where = safemalloc(size + ALIGN);
229 return where + ALIGN;
233 safexrealloc(where,size)
237 register Malloc_t new = saferealloc(where - ALIGN, size + ALIGN);
250 x = where[0] + 100 * where[1];
256 safexcalloc(x,count,size)
261 register Malloc_t where;
263 where = safexmalloc(x, size * count + ALIGN);
265 memset((void*)where + ALIGN, 0, size * count);
268 return where + ALIGN;
276 for (i = 0; i < MAXXCOUNT; i++) {
277 if (xcount[i] > lastxcount[i]) {
278 PerlIO_printf(PerlIO_stderr(),"%2d %2d\t%ld\n", i / 100, i % 100, xcount[i]);
279 lastxcount[i] = xcount[i];
284 #endif /* LEAKTEST */
286 /* copy a string up to some (non-backslashed) delimiter, if any */
289 delimcpy(to, toend, from, fromend, delim, retlen)
291 register char *toend;
293 register char *fromend;
298 for (tolen = 0; from < fromend; from++, tolen++) {
300 if (from[1] == delim)
309 else if (*from == delim)
320 /* return ptr to little string in big string, NULL if not found */
321 /* This routine was donated by Corey Satten. */
326 register char *little;
328 register char *s, *x;
339 for (x=big,s=little; *s; /**/ ) {
353 /* same as instr but allow embedded nulls */
356 ninstr(big, bigend, little, lend)
358 register char *bigend;
362 register char *s, *x;
363 register I32 first = *little;
364 register char *littleend = lend;
366 if (!first && little >= littleend)
368 if (bigend - big < littleend - little)
370 bigend -= littleend - little++;
371 while (big <= bigend) {
374 for (x=big,s=little; s < littleend; /**/ ) {
386 /* reverse of the above--find last substring */
389 rninstr(big, bigend, little, lend)
395 register char *bigbeg;
396 register char *s, *x;
397 register I32 first = *little;
398 register char *littleend = lend;
400 if (!first && little >= littleend)
403 big = bigend - (littleend - little++);
404 while (big >= bigbeg) {
407 for (x=big+2,s=little; s < littleend; /**/ ) {
420 * Set up for a new ctype locale.
423 perl_new_ctype(newctype)
426 #ifdef USE_LOCALE_CTYPE
430 for (i = 0; i < 256; i++) {
432 fold_locale[i] = toLOWER_LC(i);
433 else if (isLOWER_LC(i))
434 fold_locale[i] = toUPPER_LC(i);
439 #endif /* USE_LOCALE_CTYPE */
443 * Set up for a new collation locale.
446 perl_new_collate(newcoll)
449 #ifdef USE_LOCALE_COLLATE
452 if (collation_name) {
454 Safefree(collation_name);
455 collation_name = NULL;
456 collation_standard = TRUE;
463 if (! collation_name || strNE(collation_name, newcoll)) {
465 Safefree(collation_name);
466 collation_name = savepv(newcoll);
467 collation_standard = (strEQ(newcoll, "C") || strEQ(newcoll, "POSIX"));
470 /* 2: at most so many chars ('a', 'b'). */
471 /* 50: surely no system expands a char more. */
472 #define XFRMBUFSIZE (2 * 50)
473 char xbuf[XFRMBUFSIZE];
474 Size_t fa = strxfrm(xbuf, "a", XFRMBUFSIZE);
475 Size_t fb = strxfrm(xbuf, "ab", XFRMBUFSIZE);
476 SSize_t mult = fb - fa;
478 croak("strxfrm() gets absurd");
479 collxfrm_base = (fa > mult) ? (fa - mult) : 0;
480 collxfrm_mult = mult;
484 #endif /* USE_LOCALE_COLLATE */
488 * Set up for a new numeric locale.
491 perl_new_numeric(newnum)
494 #ifdef USE_LOCALE_NUMERIC
498 Safefree(numeric_name);
500 numeric_standard = TRUE;
501 numeric_local = TRUE;
506 if (! numeric_name || strNE(numeric_name, newnum)) {
507 Safefree(numeric_name);
508 numeric_name = savepv(newnum);
509 numeric_standard = (strEQ(newnum, "C") || strEQ(newnum, "POSIX"));
510 numeric_local = TRUE;
513 #endif /* USE_LOCALE_NUMERIC */
517 perl_set_numeric_standard()
519 #ifdef USE_LOCALE_NUMERIC
521 if (! numeric_standard) {
522 setlocale(LC_NUMERIC, "C");
523 numeric_standard = TRUE;
524 numeric_local = FALSE;
527 #endif /* USE_LOCALE_NUMERIC */
531 perl_set_numeric_local()
533 #ifdef USE_LOCALE_NUMERIC
535 if (! numeric_local) {
536 setlocale(LC_NUMERIC, numeric_name);
537 numeric_standard = FALSE;
538 numeric_local = TRUE;
541 #endif /* USE_LOCALE_NUMERIC */
546 * Initialize locale awareness.
549 perl_init_i18nl10n(printwarn)
554 * 1 = set ok or not applicable,
555 * 0 = fallback to C locale,
556 * -1 = fallback to C locale failed
561 #ifdef USE_LOCALE_CTYPE
562 char *curctype = NULL;
563 #endif /* USE_LOCALE_CTYPE */
564 #ifdef USE_LOCALE_COLLATE
565 char *curcoll = NULL;
566 #endif /* USE_LOCALE_COLLATE */
567 #ifdef USE_LOCALE_NUMERIC
569 #endif /* USE_LOCALE_NUMERIC */
570 char *lc_all = getenv("LC_ALL");
571 char *lang = getenv("LANG");
572 bool setlocale_failure = FALSE;
574 #ifdef LOCALE_ENVIRON_REQUIRED
577 * Ultrix setlocale(..., "") fails if there are no environment
578 * variables from which to get a locale name.
585 if (setlocale(LC_ALL, ""))
588 setlocale_failure = TRUE;
590 if (!setlocale_failure)
593 #ifdef USE_LOCALE_CTYPE
594 if (! (curctype = setlocale(LC_CTYPE,
595 (!done && (lang || getenv("LC_CTYPE")))
597 setlocale_failure = TRUE;
598 #endif /* USE_LOCALE_CTYPE */
599 #ifdef USE_LOCALE_COLLATE
600 if (! (curcoll = setlocale(LC_COLLATE,
601 (!done && (lang || getenv("LC_COLLATE")))
603 setlocale_failure = TRUE;
604 #endif /* USE_LOCALE_COLLATE */
605 #ifdef USE_LOCALE_NUMERIC
606 if (! (curnum = setlocale(LC_NUMERIC,
607 (!done && (lang || getenv("LC_NUMERIC")))
609 setlocale_failure = TRUE;
610 #endif /* USE_LOCALE_NUMERIC */
613 #else /* !LOCALE_ENVIRON_REQUIRED */
617 if (! setlocale(LC_ALL, ""))
618 setlocale_failure = TRUE;
620 #ifdef USE_LOCALE_CTYPE
621 curctype = setlocale(LC_CTYPE, Nullch);
622 #endif /* USE_LOCALE_CTYPE */
623 #ifdef USE_LOCALE_COLLATE
624 curcoll = setlocale(LC_COLLATE, Nullch);
625 #endif /* USE_LOCALE_COLLATE */
626 #ifdef USE_LOCALE_NUMERIC
627 curnum = setlocale(LC_NUMERIC, Nullch);
628 #endif /* USE_LOCALE_NUMERIC */
633 #ifdef USE_LOCALE_CTYPE
634 if (! (curctype = setlocale(LC_CTYPE, "")))
635 setlocale_failure = TRUE;
636 #endif /* USE_LOCALE_CTYPE */
637 #ifdef USE_LOCALE_COLLATE
638 if (! (curcoll = setlocale(LC_COLLATE, "")))
639 setlocale_failure = TRUE;
640 #endif /* USE_LOCALE_COLLATE */
641 #ifdef USE_LOCALE_NUMERIC
642 if (! (curnum = setlocale(LC_NUMERIC, "")))
643 setlocale_failure = TRUE;
644 #endif /* USE_LOCALE_NUMERIC */
648 #endif /* !LOCALE_ENVIRON_REQUIRED */
650 if (setlocale_failure) {
652 bool locwarn = (printwarn > 1 ||
654 (!(p = getenv("PERL_BADLANG")) || atoi(p)));
659 PerlIO_printf(PerlIO_stderr(),
660 "perl: warning: Setting locale failed.\n");
664 PerlIO_printf(PerlIO_stderr(),
665 "perl: warning: Setting locale failed for the categories:\n\t");
666 #ifdef USE_LOCALE_CTYPE
668 PerlIO_printf(PerlIO_stderr(), "LC_CTYPE ");
669 #endif /* USE_LOCALE_CTYPE */
670 #ifdef USE_LOCALE_COLLATE
672 PerlIO_printf(PerlIO_stderr(), "LC_COLLATE ");
673 #endif /* USE_LOCALE_COLLATE */
674 #ifdef USE_LOCALE_NUMERIC
676 PerlIO_printf(PerlIO_stderr(), "LC_NUMERIC ");
677 #endif /* USE_LOCALE_NUMERIC */
678 PerlIO_printf(PerlIO_stderr(), "\n");
682 PerlIO_printf(PerlIO_stderr(),
683 "perl: warning: Please check that your locale settings:\n");
685 PerlIO_printf(PerlIO_stderr(),
686 "\tLC_ALL = %c%s%c,\n",
688 lc_all ? lc_all : "unset",
693 for (e = environ; *e; e++) {
694 if (strnEQ(*e, "LC_", 3)
695 && strnNE(*e, "LC_ALL=", 7)
696 && (p = strchr(*e, '=')))
697 PerlIO_printf(PerlIO_stderr(), "\t%.*s = \"%s\",\n",
698 (int)(p - *e), *e, p + 1);
702 PerlIO_printf(PerlIO_stderr(),
705 lang ? lang : "unset",
708 PerlIO_printf(PerlIO_stderr(),
709 " are supported and installed on your system.\n");
714 if (setlocale(LC_ALL, "C")) {
716 PerlIO_printf(PerlIO_stderr(),
717 "perl: warning: Falling back to the standard locale (\"C\").\n");
722 PerlIO_printf(PerlIO_stderr(),
723 "perl: warning: Failed to fall back to the standard locale (\"C\").\n");
730 #ifdef USE_LOCALE_CTYPE
731 || !(curctype || setlocale(LC_CTYPE, "C"))
732 #endif /* USE_LOCALE_CTYPE */
733 #ifdef USE_LOCALE_COLLATE
734 || !(curcoll || setlocale(LC_COLLATE, "C"))
735 #endif /* USE_LOCALE_COLLATE */
736 #ifdef USE_LOCALE_NUMERIC
737 || !(curnum || setlocale(LC_NUMERIC, "C"))
738 #endif /* USE_LOCALE_NUMERIC */
742 PerlIO_printf(PerlIO_stderr(),
743 "perl: warning: Cannot fall back to the standard locale (\"C\").\n");
747 #endif /* ! LC_ALL */
749 #ifdef USE_LOCALE_CTYPE
750 curctype = setlocale(LC_CTYPE, Nullch);
751 #endif /* USE_LOCALE_CTYPE */
752 #ifdef USE_LOCALE_COLLATE
753 curcoll = setlocale(LC_COLLATE, Nullch);
754 #endif /* USE_LOCALE_COLLATE */
755 #ifdef USE_LOCALE_NUMERIC
756 curnum = setlocale(LC_NUMERIC, Nullch);
757 #endif /* USE_LOCALE_NUMERIC */
760 #ifdef USE_LOCALE_CTYPE
761 perl_new_ctype(curctype);
762 #endif /* USE_LOCALE_CTYPE */
764 #ifdef USE_LOCALE_COLLATE
765 perl_new_collate(curcoll);
766 #endif /* USE_LOCALE_COLLATE */
768 #ifdef USE_LOCALE_NUMERIC
769 perl_new_numeric(curnum);
770 #endif /* USE_LOCALE_NUMERIC */
772 #endif /* USE_LOCALE */
777 /* Backwards compatibility. */
779 perl_init_i18nl14n(printwarn)
782 return perl_init_i18nl10n(printwarn);
785 #ifdef USE_LOCALE_COLLATE
788 * mem_collxfrm() is a bit like strxfrm() but with two important
789 * differences. First, it handles embedded NULs. Second, it allocates
790 * a bit more memory than needed for the transformed data itself.
791 * The real transformed data begins at offset sizeof(collationix).
792 * Please see sv_collxfrm() to see how this is used.
795 mem_collxfrm(s, len, xlen)
801 STRLEN xalloc, xin, xout;
803 /* the first sizeof(collationix) bytes are used by sv_collxfrm(). */
804 /* the +1 is for the terminating NUL. */
806 xalloc = sizeof(collation_ix) + collxfrm_base + (collxfrm_mult * len) + 1;
807 New(171, xbuf, xalloc, char);
811 *(U32*)xbuf = collation_ix;
812 xout = sizeof(collation_ix);
813 for (xin = 0; xin < len; ) {
817 xused = strxfrm(xbuf + xout, s + xin, xalloc - xout);
820 if (xused < xalloc - xout)
822 xalloc = (2 * xalloc) + 1;
823 Renew(xbuf, xalloc, char);
828 xin += strlen(s + xin) + 1;
831 /* Embedded NULs are understood but silently skipped
832 * because they make no sense in locale collation. */
836 *xlen = xout - sizeof(collation_ix);
845 #endif /* USE_LOCALE_COLLATE */
851 register unsigned char *s;
852 register unsigned char *table;
854 register U32 len = SvCUR(sv);
859 return; /* can't have offsets that big */
861 table = (unsigned char*)(SvPVX(sv) + len + 1);
863 for (i = 0; i < 256; i++) {
867 while (s >= (unsigned char*)(SvPVX(sv)))
869 if (table[*s] == len)
873 sv_upgrade(sv, SVt_PVBM);
874 sv_magic(sv, Nullsv, 'B', Nullch, 0); /* deep magic */
877 s = (unsigned char*)(SvPVX(sv)); /* deeper magic */
878 for (i = 0; i < len; i++) {
879 if (freq[s[i]] < frequency) {
881 frequency = freq[s[i]];
884 BmRARE(sv) = s[rarest];
885 BmPREVIOUS(sv) = rarest;
886 DEBUG_r(PerlIO_printf(Perl_debug_log, "rarest char %c at %d\n",BmRARE(sv),BmPREVIOUS(sv)));
890 fbm_instr(big, bigend, littlestr)
892 register unsigned char *bigend;
895 register unsigned char *s;
897 register I32 littlelen;
898 register unsigned char *little;
899 register unsigned char *table;
900 register unsigned char *olds;
901 register unsigned char *oldlittle;
903 if (SvTYPE(littlestr) != SVt_PVBM || !SvVALID(littlestr)) {
905 char *l = SvPV(littlestr,len);
908 return ninstr((char*)big,(char*)bigend, l, l + len);
911 littlelen = SvCUR(littlestr);
912 if (SvTAIL(littlestr) && !multiline) { /* tail anchored? */
913 if (littlelen > bigend - big)
915 little = (unsigned char*)SvPVX(littlestr);
916 s = bigend - littlelen;
917 if (*s == *little && memEQ((char*)s,(char*)little,littlelen))
918 return (char*)s; /* how sweet it is */
919 else if (bigend[-1] == '\n' && little[littlelen-1] != '\n'
922 if (*s == *little && memEQ((char*)s,(char*)little,littlelen))
927 table = (unsigned char*)(SvPVX(littlestr) + littlelen + 1);
928 if (--littlelen >= bigend - big)
931 oldlittle = little = table - 2;
935 if (tmp = table[*s]) {
937 if (bigend - s > tmp) {
942 if ((s += tmp) < bigend)
948 tmp = littlelen; /* less expensive than calling strncmp() */
951 if (*--s == *--little)
953 s = olds + 1; /* here we pay the price for failure */
955 if (s < bigend) /* fake up continue to outer loop */
966 screaminstr(bigstr, littlestr)
970 register unsigned char *s, *x;
971 register unsigned char *big;
973 register I32 previous;
975 register unsigned char *little;
976 register unsigned char *bigend;
977 register unsigned char *littleend;
979 if ((pos = screamfirst[BmRARE(littlestr)]) < 0)
981 little = (unsigned char *)(SvPVX(littlestr));
982 littleend = little + SvCUR(littlestr);
984 previous = BmPREVIOUS(littlestr);
985 big = (unsigned char *)(SvPVX(bigstr));
986 bigend = big + SvCUR(bigstr);
987 while (pos < previous) {
988 if (!(pos += screamnext[pos]))
993 if (big[pos-previous] != first)
995 for (x=big+pos+1-previous,s=little; s < littleend; /**/ ) {
1004 return (char *)(big+pos-previous);
1005 } while ( pos += screamnext[pos] );
1006 #else /* !POINTERRIGOR */
1009 if (big[pos] != first)
1011 for (x=big+pos+1,s=little; s < littleend; /**/ ) {
1020 return (char *)(big+pos);
1021 } while ( pos += screamnext[pos] );
1022 #endif /* POINTERRIGOR */
1031 register U8 *a = (U8 *)s1;
1032 register U8 *b = (U8 *)s2;
1034 if (*a != *b && *a != fold[*b])
1042 ibcmp_locale(s1, s2, len)
1046 register U8 *a = (U8 *)s1;
1047 register U8 *b = (U8 *)s2;
1049 if (*a != *b && *a != fold_locale[*b])
1056 /* copy a string to a safe spot */
1062 register char *newaddr;
1064 New(902,newaddr,strlen(sv)+1,char);
1065 (void)strcpy(newaddr,sv);
1069 /* same thing but with a known length */
1076 register char *newaddr;
1078 New(903,newaddr,len+1,char);
1079 Copy(sv,newaddr,len,char); /* might not be null terminated */
1080 newaddr[len] = '\0'; /* is now */
1084 /* the SV for form() and mess() is not kept in an arena */
1092 /* Create as PVMG now, to avoid any upgrading later */
1093 New(905, sv, 1, SV);
1094 Newz(905, any, 1, XPVMG);
1095 SvFLAGS(sv) = SVt_PVMG;
1096 SvANY(sv) = (void*)any;
1097 SvREFCNT(sv) = 1 << 30; /* practically infinite */
1103 form(const char* pat, ...)
1114 va_start(args, pat);
1119 mess_sv = mess_alloc();
1120 sv_vsetpvfn(mess_sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
1122 return SvPVX(mess_sv);
1131 static char dgd[] = " during global destruction.\n";
1134 mess_sv = mess_alloc();
1136 sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*));
1137 if (!SvCUR(sv) || *(SvEND(sv) - 1) != '\n') {
1142 if (curcop->cop_line)
1143 sv_catpvf(sv, " at %_ line %ld",
1144 GvSV(curcop->cop_filegv), (long)curcop->cop_line);
1145 if (GvIO(last_in_gv) && IoLINES(GvIOp(last_in_gv))) {
1146 bool line_mode = (RsSIMPLE(rs) &&
1147 SvLEN(rs) == 1 && *SvPVX(rs) == '\n');
1148 sv_catpvf(sv, ", <%s> %s %ld",
1149 last_in_gv == argvgv ? "" : GvNAME(last_in_gv),
1150 line_mode ? "line" : "chunk",
1151 (long)IoLINES(GvIOp(last_in_gv)));
1153 sv_catpv(sv, ".\n");
1161 die(const char* pat, ...)
1173 I32 oldrunlevel = runlevel;
1174 int was_in_eval = in_eval;
1179 DEBUG_L(PerlIO_printf(PerlIO_stderr(), "die: curstack = %p, mainstack= %p\n",
1180 curstack, mainstack));/*debug*/
1181 /* We have to switch back to mainstack or die_where may try to pop
1182 * the eval block from the wrong stack if die is being called from a
1183 * signal handler. - dkindred@cs.cmu.edu */
1184 if (curstack != mainstack) {
1186 SWITCHSTACK(curstack, mainstack);
1190 va_start(args, pat);
1194 message = mess(pat, &args);
1197 DEBUG_L(PerlIO_printf(PerlIO_stderr(), "die: message = %s\ndiehook = %p\n",
1198 message, diehook));/*debug*/
1200 /* sv_2cv might call croak() */
1201 SV *olddiehook = diehook;
1205 cv = sv_2cv(olddiehook, &stash, &gv, 0);
1207 if (cv && !CvDEPTH(cv) && (CvROOT(cv) || CvXSUB(cv))) {
1212 msg = newSVpv(message, 0);
1219 perl_call_sv((SV*)cv, G_DISCARD);
1225 restartop = die_where(message);
1226 DEBUG_L(PerlIO_printf(PerlIO_stderr(),
1227 "die: restartop = %p, was_in_eval = %d, oldrunlevel = %d\n",
1228 restartop, was_in_eval, oldrunlevel));/*debug*/
1229 if ((!restartop && was_in_eval) || oldrunlevel > 1)
1236 croak(const char* pat, ...)
1240 croak(pat, va_alist)
1253 va_start(args, pat);
1257 message = mess(pat, &args);
1260 DEBUG_L(PerlIO_printf(PerlIO_stderr(), "croak: 0x%lx %s", (unsigned long) thr, message));
1261 #endif /* USE_THREADS */
1263 /* sv_2cv might call croak() */
1264 SV *olddiehook = diehook;
1268 cv = sv_2cv(olddiehook, &stash, &gv, 0);
1270 if (cv && !CvDEPTH(cv) && (CvROOT(cv) || CvXSUB(cv))) {
1275 msg = newSVpv(message, 0);
1282 perl_call_sv((SV*)cv, G_DISCARD);
1288 restartop = die_where(message);
1291 PerlIO_puts(PerlIO_stderr(),message);
1292 (void)PerlIO_flush(PerlIO_stderr());
1298 warn(const char* pat,...)
1313 va_start(args, pat);
1317 message = mess(pat, &args);
1321 /* sv_2cv might call warn() */
1323 SV *oldwarnhook = warnhook;
1327 cv = sv_2cv(oldwarnhook, &stash, &gv, 0);
1329 if (cv && !CvDEPTH(cv) && (CvROOT(cv) || CvXSUB(cv))) {
1334 msg = newSVpv(message, 0);
1341 perl_call_sv((SV*)cv, G_DISCARD);
1347 PerlIO_puts(PerlIO_stderr(),message);
1351 (void)PerlIO_flush(PerlIO_stderr());
1354 #ifndef VMS /* VMS' my_setenv() is in VMS.c */
1360 register I32 i=setenv_getix(nam); /* where does it go? */
1362 if (environ == origenviron) { /* need we copy environment? */
1368 for (max = i; environ[max]; max++) ;
1369 New(901,tmpenv, max+2, char*);
1370 for (j=0; j<max; j++) /* copy environment */
1371 tmpenv[j] = savepv(environ[j]);
1372 tmpenv[max] = Nullch;
1373 environ = tmpenv; /* tell exec where it is now */
1376 Safefree(environ[i]);
1377 while (environ[i]) {
1378 environ[i] = environ[i+1];
1383 if (!environ[i]) { /* does not exist yet */
1384 Renew(environ, i+2, char*); /* just expand it a bit */
1385 environ[i+1] = Nullch; /* make sure it's null terminated */
1388 Safefree(environ[i]);
1389 New(904, environ[i], strlen(nam) + strlen(val) + 2, char);
1391 (void)sprintf(environ[i],"%s=%s",nam,val);/* all that work just for this */
1393 /* MS-DOS requires environment variable names to be in uppercase */
1394 /* [Tom Dinger, 27 August 1990: Well, it doesn't _require_ it, but
1395 * some utilities and applications may break because they only look
1396 * for upper case strings. (Fixed strupr() bug here.)]
1398 strcpy(environ[i],nam); strupr(environ[i]);
1399 (void)sprintf(environ[i] + strlen(nam),"=%s",val);
1403 #else /* if WIN32 */
1410 #ifdef USE_WIN32_RTL_ENV
1412 register char *envstr;
1413 STRLEN namlen = strlen(nam);
1415 char *oldstr = environ[setenv_getix(nam)];
1417 /* putenv() has totally broken semantics in both the Borland
1418 * and Microsoft CRTLs. They either store the passed pointer in
1419 * the environment without making a copy, or make a copy and don't
1420 * free it. And on top of that, they dont free() old entries that
1421 * are being replaced/deleted. This means the caller must
1422 * free any old entries somehow, or we end up with a memory
1423 * leak every time my_setenv() is called. One might think
1424 * one could directly manipulate environ[], like the UNIX code
1425 * above, but direct changes to environ are not allowed when
1426 * calling putenv(), since the RTLs maintain an internal
1427 * *copy* of environ[]. Bad, bad, *bad* stink.
1438 vallen = strlen(val);
1439 New(904, envstr, namlen + vallen + 3, char);
1440 (void)sprintf(envstr,"%s=%s",nam,val);
1441 (void)putenv(envstr);
1445 Safefree(envstr); /* MSVCRT leaks without this */
1448 #else /* !USE_WIN32_RTL_ENV */
1450 /* The sane way to deal with the environment.
1451 * Has these advantages over putenv() & co.:
1452 * * enables us to store a truly empty value in the
1453 * environment (like in UNIX).
1454 * * we don't have to deal with RTL globals, bugs and leaks.
1456 * Why you may want to enable USE_WIN32_RTL_ENV:
1457 * * environ[] and RTL functions will not reflect changes,
1458 * which might be an issue if extensions want to access
1459 * the env. via RTL. This cuts both ways, since RTL will
1460 * not see changes made by extensions that call the Win32
1461 * functions directly, either.
1464 SetEnvironmentVariable(nam,val);
1475 register I32 i, len = strlen(nam);
1477 for (i = 0; environ[i]; i++) {
1480 strnicmp(environ[i],nam,len) == 0
1482 strnEQ(environ[i],nam,len)
1484 && environ[i][len] == '=')
1485 break; /* strnEQ must come first to avoid */
1486 } /* potential SEGV's */
1492 #ifdef UNLINK_ALL_VERSIONS
1494 unlnk(f) /* unlink all versions of a file */
1499 for (i = 0; unlink(f) >= 0; i++) ;
1504 #if !defined(HAS_BCOPY) || !defined(HAS_SAFE_BCOPY)
1506 my_bcopy(from,to,len)
1507 register char *from;
1513 if (from - to >= 0) {
1521 *(--to) = *(--from);
1529 my_memset(loc,ch,len)
1542 #if !defined(HAS_BZERO) && !defined(HAS_MEMSET)
1556 #if !defined(HAS_MEMCMP) || !defined(HAS_SANE_MEMCMP)
1558 my_memcmp(s1,s2,len)
1563 register U8 *a = (U8 *)s1;
1564 register U8 *b = (U8 *)s2;
1568 if (tmp = *a++ - *b++)
1573 #endif /* !HAS_MEMCMP || !HAS_SANE_MEMCMP */
1575 #if defined(I_STDARG) || defined(I_VARARGS)
1578 #ifdef USE_CHAR_VSPRINTF
1583 vsprintf(dest, pat, args)
1590 fakebuf._ptr = dest;
1591 fakebuf._cnt = 32767;
1595 fakebuf._flag = _IOWRT|_IOSTRG;
1596 _doprnt(pat, args, &fakebuf); /* what a kludge */
1597 (void)putc('\0', &fakebuf);
1598 #ifdef USE_CHAR_VSPRINTF
1601 return 0; /* perl doesn't use return value */
1605 #endif /* HAS_VPRINTF */
1606 #endif /* I_VARARGS || I_STDARGS */
1609 #if BYTEORDER != 0x4321
1611 #ifndef CAN_PROTOTYPE
1618 #if (BYTEORDER & 1) == 0
1621 result = ((s & 255) << 8) + ((s >> 8) & 255);
1629 #ifndef CAN_PROTOTYPE
1638 char c[sizeof(long)];
1641 #if BYTEORDER == 0x1234
1642 u.c[0] = (l >> 24) & 255;
1643 u.c[1] = (l >> 16) & 255;
1644 u.c[2] = (l >> 8) & 255;
1648 #if ((BYTEORDER - 0x1111) & 0x444) || !(BYTEORDER & 0xf)
1649 croak("Unknown BYTEORDER\n");
1654 for (o = BYTEORDER - 0x1111, s = 0; s < (sizeof(long)*8); o >>= 4, s += 8) {
1655 u.c[o & 0xf] = (l >> s) & 255;
1663 #ifndef CAN_PROTOTYPE
1672 char c[sizeof(long)];
1675 #if BYTEORDER == 0x1234
1676 u.c[0] = (l >> 24) & 255;
1677 u.c[1] = (l >> 16) & 255;
1678 u.c[2] = (l >> 8) & 255;
1682 #if ((BYTEORDER - 0x1111) & 0x444) || !(BYTEORDER & 0xf)
1683 croak("Unknown BYTEORDER\n");
1690 for (o = BYTEORDER - 0x1111, s = 0; s < (sizeof(long)*8); o >>= 4, s += 8) {
1691 l |= (u.c[o & 0xf] & 255) << s;
1698 #endif /* BYTEORDER != 0x4321 */
1702 * Little-endian byte order functions - 'v' for 'VAX', or 'reVerse'.
1703 * If these functions are defined,
1704 * the BYTEORDER is neither 0x1234 nor 0x4321.
1705 * However, this is not assumed.
1709 #define HTOV(name,type) \
1716 char c[sizeof(type)]; \
1720 for (i = 0, s = 0; i < sizeof(u.c); i++, s += 8) { \
1721 u.c[i] = (n >> s) & 0xFF; \
1726 #define VTOH(name,type) \
1733 char c[sizeof(type)]; \
1739 for (i = 0, s = 0; i < sizeof(u.c); i++, s += 8) { \
1740 n += (u.c[i] & 0xFF) << s; \
1745 #if defined(HAS_HTOVS) && !defined(htovs)
1748 #if defined(HAS_HTOVL) && !defined(htovl)
1751 #if defined(HAS_VTOHS) && !defined(vtohs)
1754 #if defined(HAS_VTOHL) && !defined(vtohl)
1758 /* VMS' my_popen() is in VMS.c, same with OS/2. */
1759 #if (!defined(DOSISH) || defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS)
1766 register I32 this, that;
1769 I32 doexec = strNE(cmd,"-");
1773 return my_syspopen(cmd,mode);
1778 this = (*mode == 'w');
1780 if (doexec && tainting) {
1782 taint_proper("Insecure %s%s", "EXEC");
1784 while ((pid = (doexec?vfork():fork())) < 0) {
1785 if (errno != EAGAIN) {
1788 croak("Can't fork");
1799 if (p[THIS] != (*mode == 'r')) {
1800 dup2(p[THIS], *mode == 'r');
1804 #if !defined(HAS_FCNTL) || !defined(F_SETFD)
1810 for (fd = maxsysfd + 1; fd < NOFILE; fd++)
1813 do_exec(cmd); /* may or may not use the shell */
1817 if (tmpgv = gv_fetchpv("$",TRUE, SVt_PV))
1818 sv_setiv(GvSV(tmpgv), (IV)getpid());
1820 hv_clear(pidstatus); /* we have no children */
1825 do_execfree(); /* free any memory malloced by child on vfork */
1827 if (p[that] < p[this]) {
1828 dup2(p[this], p[that]);
1832 sv = *av_fetch(fdpid,p[this],TRUE);
1833 (void)SvUPGRADE(sv,SVt_IV);
1836 return PerlIO_fdopen(p[this], mode);
1839 #if defined(atarist) || defined(DJGPP)
1846 /* Needs work for PerlIO ! */
1847 /* used 0 for 2nd parameter to PerlIO-exportFILE; apparently not used */
1848 return popen(PerlIO_exportFILE(cmd, 0), mode);
1852 #endif /* !DOSISH */
1859 struct stat tmpstatbuf;
1861 PerlIO_printf(PerlIO_stderr(),"%s", s);
1862 for (fd = 0; fd < 32; fd++) {
1863 if (Fstat(fd,&tmpstatbuf) >= 0)
1864 PerlIO_printf(PerlIO_stderr()," %d",fd);
1866 PerlIO_printf(PerlIO_stderr(),"\n");
1876 #if defined(HAS_FCNTL) && defined(F_DUPFD)
1880 return fcntl(oldfd, F_DUPFD, newfd);
1882 #define DUP2_MAX_FDS 256
1883 int fdtmp[DUP2_MAX_FDS];
1890 /* good enough for low fd's... */
1891 while ((fd = dup(oldfd)) != newfd && fd >= 0) {
1892 if (fdx >= DUP2_MAX_FDS) {
1900 close(fdtmp[--fdx]);
1907 #ifdef HAS_SIGACTION
1910 rsignal(signo, handler)
1912 Sighandler_t handler;
1914 struct sigaction act, oact;
1916 act.sa_handler = handler;
1917 sigemptyset(&act.sa_mask);
1920 act.sa_flags |= SA_RESTART; /* SVR4, 4.3+BSD */
1922 if (sigaction(signo, &act, &oact) == -1)
1925 return oact.sa_handler;
1929 rsignal_state(signo)
1932 struct sigaction oact;
1934 if (sigaction(signo, (struct sigaction *)NULL, &oact) == -1)
1937 return oact.sa_handler;
1941 rsignal_save(signo, handler, save)
1943 Sighandler_t handler;
1946 struct sigaction act;
1948 act.sa_handler = handler;
1949 sigemptyset(&act.sa_mask);
1952 act.sa_flags |= SA_RESTART; /* SVR4, 4.3+BSD */
1954 return sigaction(signo, &act, save);
1958 rsignal_restore(signo, save)
1962 return sigaction(signo, save, (struct sigaction *)NULL);
1965 #else /* !HAS_SIGACTION */
1968 rsignal(signo, handler)
1970 Sighandler_t handler;
1972 return signal(signo, handler);
1975 static int sig_trapped;
1986 rsignal_state(signo)
1989 Sighandler_t oldsig;
1992 oldsig = signal(signo, sig_trap);
1993 signal(signo, oldsig);
1995 kill(getpid(), signo);
2000 rsignal_save(signo, handler, save)
2002 Sighandler_t handler;
2005 *save = signal(signo, handler);
2006 return (*save == SIG_ERR) ? -1 : 0;
2010 rsignal_restore(signo, save)
2014 return (signal(signo, *save) == SIG_ERR) ? -1 : 0;
2017 #endif /* !HAS_SIGACTION */
2019 /* VMS' my_pclose() is in VMS.c; same with OS/2 */
2020 #if (!defined(DOSISH) || defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS)
2025 Sigsave_t hstat, istat, qstat;
2032 int saved_vaxc_errno;
2035 svp = av_fetch(fdpid,PerlIO_fileno(ptr),TRUE);
2036 pid = (int)SvIVX(*svp);
2040 if (pid == -1) { /* Opened by popen. */
2041 return my_syspclose(ptr);
2044 if ((close_failed = (PerlIO_close(ptr) == EOF))) {
2045 saved_errno = errno;
2047 saved_vaxc_errno = vaxc$errno;
2051 if(kill(pid, 0) < 0) { return(pid); } /* HOM 12/23/91 */
2053 rsignal_save(SIGHUP, SIG_IGN, &hstat);
2054 rsignal_save(SIGINT, SIG_IGN, &istat);
2055 rsignal_save(SIGQUIT, SIG_IGN, &qstat);
2057 pid = wait4pid(pid, &status, 0);
2058 } while (pid == -1 && errno == EINTR);
2059 rsignal_restore(SIGHUP, &hstat);
2060 rsignal_restore(SIGINT, &istat);
2061 rsignal_restore(SIGQUIT, &qstat);
2063 SETERRNO(saved_errno, saved_vaxc_errno);
2066 return(pid < 0 ? pid : status == 0 ? 0 : (errno = 0, status));
2068 #endif /* !DOSISH */
2070 #if !defined(DOSISH) || defined(OS2)
2072 wait4pid(pid,statusp,flags)
2079 char spid[TYPE_CHARS(int)];
2084 sprintf(spid, "%d", pid);
2085 svp = hv_fetch(pidstatus,spid,strlen(spid),FALSE);
2086 if (svp && *svp != &sv_undef) {
2087 *statusp = SvIVX(*svp);
2088 (void)hv_delete(pidstatus,spid,strlen(spid),G_DISCARD);
2095 hv_iterinit(pidstatus);
2096 if (entry = hv_iternext(pidstatus)) {
2097 pid = atoi(hv_iterkey(entry,(I32*)statusp));
2098 sv = hv_iterval(pidstatus,entry);
2099 *statusp = SvIVX(sv);
2100 sprintf(spid, "%d", pid);
2101 (void)hv_delete(pidstatus,spid,strlen(spid),G_DISCARD);
2106 # ifdef HAS_WAITPID_RUNTIME
2107 if (!HAS_WAITPID_RUNTIME)
2110 return waitpid(pid,statusp,flags);
2112 #if !defined(HAS_WAITPID) && defined(HAS_WAIT4)
2113 return wait4((pid==-1)?0:pid,statusp,flags,Null(struct rusage *));
2115 #if !defined(HAS_WAITPID) && !defined(HAS_WAIT4) || defined(HAS_WAITPID_RUNTIME)
2120 croak("Can't do waitpid with flags");
2122 while ((result = wait(statusp)) != pid && pid > 0 && result >= 0)
2123 pidgone(result,*statusp);
2131 #endif /* !DOSISH */
2140 char spid[TYPE_CHARS(int)];
2142 sprintf(spid, "%d", pid);
2143 sv = *hv_fetch(pidstatus,spid,strlen(spid),TRUE);
2144 (void)SvUPGRADE(sv,SVt_IV);
2149 #if defined(atarist) || defined(OS2) || defined(DJGPP)
2152 int /* Cannot prototype with I32
2161 /* Needs work for PerlIO ! */
2162 FILE *f = PerlIO_findFILE(ptr);
2163 I32 result = pclose(f);
2164 PerlIO_releaseFILE(ptr,f);
2170 repeatcpy(to,from,len,count)
2172 register char *from;
2177 register char *frombase = from;
2185 while (count-- > 0) {
2186 for (todo = len; todo > 0; todo--) {
2193 #ifndef CASTNEGFLOAT
2201 # define BIGDOUBLE 2147483648.0
2203 return (unsigned long)(f-(long)(f/BIGDOUBLE)*BIGDOUBLE)|0x80000000;
2206 return (unsigned long)f;
2208 return (unsigned long)along;
2215 /* Unfortunately, on some systems the cast_uv() function doesn't
2216 work with the system-supplied definition of ULONG_MAX. The
2217 comparison (f >= ULONG_MAX) always comes out true. It must be a
2218 problem with the compiler constant folding.
2220 In any case, this workaround should be fine on any two's complement
2221 system. If it's not, supply a '-DMY_ULONG_MAX=whatever' in your
2223 --Andy Dougherty <doughera@lafcol.lafayette.edu>
2226 /* Code modified to prefer proper named type ranges, I32, IV, or UV, instead
2228 -- Kenneth Albanowski <kjahds@kjahds.com>
2232 # define MY_UV_MAX ((UV)IV_MAX * (UV)2 + (UV)1)
2240 return (I32) I32_MAX;
2242 return (I32) I32_MIN;
2262 return (UV) MY_UV_MAX;
2274 char *fa = strrchr(a,'/');
2275 char *fb = strrchr(b,'/');
2276 struct stat tmpstatbuf1;
2277 struct stat tmpstatbuf2;
2278 SV *tmpsv = sv_newmortal();
2291 sv_setpv(tmpsv, ".");
2293 sv_setpvn(tmpsv, a, fa - a);
2294 if (Stat(SvPVX(tmpsv), &tmpstatbuf1) < 0)
2297 sv_setpv(tmpsv, ".");
2299 sv_setpvn(tmpsv, b, fb - b);
2300 if (Stat(SvPVX(tmpsv), &tmpstatbuf2) < 0)
2302 return tmpstatbuf1.st_dev == tmpstatbuf2.st_dev &&
2303 tmpstatbuf1.st_ino == tmpstatbuf2.st_ino;
2305 #endif /* !HAS_RENAME */
2308 scan_oct(start, len, retlen)
2313 register char *s = start;
2314 register UV retval = 0;
2315 bool overflowed = FALSE;
2317 while (len && *s >= '0' && *s <= '7') {
2318 register UV n = retval << 3;
2319 if (!overflowed && (n >> 3) != retval) {
2320 warn("Integer overflow in octal number");
2323 retval = n | (*s++ - '0');
2326 if (dowarn && len && (*s == '8' || *s == '9'))
2327 warn("Illegal octal digit ignored");
2328 *retlen = s - start;
2333 scan_hex(start, len, retlen)
2338 register char *s = start;
2339 register UV retval = 0;
2340 bool overflowed = FALSE;
2343 while (len-- && *s && (tmp = strchr(hexdigit, *s))) {
2344 register UV n = retval << 4;
2345 if (!overflowed && (n >> 4) != retval) {
2346 warn("Integer overflow in hex number");
2349 retval = n | (tmp - hexdigit) & 15;
2352 *retlen = s - start;
2358 /* Very simplistic scheduler for now */
2362 thr = thr->i.next_run;
2373 perl_cond_signal(cp)
2377 perl_cond cond = *cp;
2382 /* Insert t in the runnable queue just ahead of us */
2383 t->i.next_run = thr->i.next_run;
2384 thr->i.next_run->i.prev_run = t;
2385 t->i.prev_run = thr;
2386 thr->i.next_run = t;
2387 thr->i.wait_queue = 0;
2388 /* Remove from the wait queue */
2394 perl_cond_broadcast(cp)
2398 perl_cond cond, cond_next;
2400 for (cond = *cp; cond; cond = cond_next) {
2402 /* Insert t in the runnable queue just ahead of us */
2403 t->i.next_run = thr->i.next_run;
2404 thr->i.next_run->i.prev_run = t;
2405 t->i.prev_run = thr;
2406 thr->i.next_run = t;
2407 thr->i.wait_queue = 0;
2408 /* Remove from the wait queue */
2409 cond_next = cond->next;
2421 if (thr->i.next_run == thr)
2422 croak("panic: perl_cond_wait called by last runnable thread");
2424 New(666, cond, 1, struct perl_wait_queue);
2428 thr->i.wait_queue = cond;
2429 /* Remove ourselves from runnable queue */
2430 thr->i.next_run->i.prev_run = thr->i.prev_run;
2431 thr->i.prev_run->i.next_run = thr->i.next_run;
2433 #endif /* FAKE_THREADS */
2435 #ifdef OLD_PTHREADS_API
2441 if (pthread_getspecific(thr_key, &t))
2442 croak("panic: pthread_getspecific");
2443 return (struct thread *) t;
2445 #endif /* OLD_PTHREADS_API */
2453 SvUPGRADE(sv, SVt_PVMG);
2454 mg = mg_find(sv, 'm');
2458 New(53, cp, 1, condpair_t);
2459 MUTEX_INIT(&cp->mutex);
2460 COND_INIT(&cp->owner_cond);
2461 COND_INIT(&cp->cond);
2463 MUTEX_LOCK(&sv_mutex);
2464 mg = mg_find(sv, 'm');
2466 /* someone else beat us to initialising it */
2467 MUTEX_UNLOCK(&sv_mutex);
2468 MUTEX_DESTROY(&cp->mutex);
2469 COND_DESTROY(&cp->owner_cond);
2470 COND_DESTROY(&cp->cond);
2474 sv_magic(sv, Nullsv, 'm', 0, 0);
2476 mg->mg_ptr = (char *)cp;
2477 mg->mg_len = sizeof(cp);
2478 MUTEX_UNLOCK(&sv_mutex);
2479 DEBUG_L(WITH_THR(PerlIO_printf(PerlIO_stderr(),
2480 "%p: condpair_magic %p\n", thr, sv));)
2487 * Make a new perl thread structure using t as a prototype. If t is NULL
2488 * then this is the initial main thread and we have to bootstrap carefully.
2489 * Some of the fields for the new thread are copied from the prototype
2490 * thread, t, so t should not be running in perl at the time this function
2491 * is called. The usual case, where t is the thread calling new_struct_thread,
2492 * clearly satisfies this constraint.
2495 new_struct_thread(t)
2502 Newz(53, thr, 1, struct thread);
2504 curcop = &compiling;
2505 thr->magicals = newAV();
2506 thr->specific = newAV();
2507 thr->flags = THRf_R_JOINABLE;
2508 MUTEX_INIT(&thr->mutex);
2510 oursv = newSVpv("", 0);
2511 SvGROW(oursv, sizeof(struct thread) + 1);
2512 SvCUR_set(oursv, sizeof(struct thread));
2513 thr = (struct thread *) SvPVX(sv);
2515 /* Handcraft thrsv similarly to mess_sv */
2516 New(53, thrsv, 1, SV);
2517 Newz(53, xpv, 1, XPV);
2518 SvFLAGS(thrsv) = SVt_PV;
2519 SvANY(thrsv) = (void*)xpv;
2520 SvREFCNT(thrsv) = 1 << 30; /* practically infinite */
2521 SvPVX(thrsv) = (char*)thr;
2522 SvCUR_set(thrsv, sizeof(thr));
2523 SvLEN_set(thrsv, sizeof(thr));
2524 *SvEND(thrsv) = '\0'; /* in the trailing_nul field */
2528 curcop = t->Tcurcop; /* XXX As good a guess as any? */
2529 defstash = t->Tdefstash; /* XXX maybe these should */
2530 curstash = t->Tcurstash; /* always be set to main? */
2533 tainted = t->Ttainted;
2534 curpm = t->Tcurpm; /* XXX No PMOP ref count */
2535 nrs = newSVsv(t->Tnrs);
2536 rs = newSVsv(t->Trs);
2537 last_in_gv = (GV*)SvREFCNT_inc(t->Tlast_in_gv);
2538 ofslen = t->Tofslen;
2539 ofs = savepvn(t->Tofs, ofslen);
2540 defoutgv = (GV*)SvREFCNT_inc(t->Tdefoutgv);
2541 chopset = t->Tchopset;
2542 formtarget = newSVsv(t->Tformtarget);
2543 bodytarget = newSVsv(t->Tbodytarget);
2544 toptarget = newSVsv(t->Ttoptarget);
2546 curcop = &compiling;
2549 MUTEX_LOCK(&threads_mutex);
2551 thr->tid = threadnum++;
2553 thr->next = t->next;
2556 thr->next->prev = thr;
2561 MUTEX_UNLOCK(&threads_mutex);
2563 #ifdef HAVE_THREAD_INTERN
2564 init_thread_intern(thr);
2566 thr->self = pthread_self();
2567 #endif /* HAVE_THREAD_INTERN */
2571 * These must come after the SET_THR because sv_setpvn does
2572 * SvTAINT and the taint fields require dTHR.
2574 toptarget = NEWSV(0,0);
2575 sv_upgrade(toptarget, SVt_PVFM);
2576 sv_setpvn(toptarget, "", 0);
2577 bodytarget = NEWSV(0,0);
2578 sv_upgrade(bodytarget, SVt_PVFM);
2579 sv_setpvn(bodytarget, "", 0);
2580 formtarget = bodytarget;
2584 #endif /* USE_THREADS */
2588 * This hack is to force load of "huge" support from libm.a
2589 * So it is in perl for (say) POSIX to use.
2590 * Needed for SunOS with Sun's 'acc' for example.