/* util.c
*
- * Copyright (c) 1991-1994, Larry Wall
+ * Copyright (c) 1991-1999, Larry Wall
*
* You may distribute under the terms of either the GNU General Public
* License or the Artistic License, as specified in the README file.
*/
#include "EXTERN.h"
+#define PERL_IN_UTIL_C
#include "perl.h"
#if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX)
#include <signal.h>
#endif
+#ifndef SIG_ERR
+# define SIG_ERR ((Sighandler_t) -1)
+#endif
+
/* XXX If this causes problems, set i_unistd=undef in the hint file. */
#ifdef I_UNISTD
# include <unistd.h>
# include <sys/wait.h>
#endif
+#ifdef I_LOCALE
+# include <locale.h>
+#endif
+
#define FLUSH
#ifdef LEAKTEST
-static void xstat _((void));
-#endif
-#ifndef MYMALLOC
+long xcount[MAXXCOUNT];
+long lastxcount[MAXXCOUNT];
+long xycount[MAXXCOUNT][MAXYCOUNT];
+long lastxycount[MAXXCOUNT][MAXYCOUNT];
-/* paranoid version of malloc */
+#endif
+
+/* paranoid version of system's malloc() */
/* NOTE: Do not call the next three routines directly. Use the macros
* in handy.h, so that we can easily redefine everything to do tracking of
*/
Malloc_t
-safemalloc(size)
-MEM_SIZE size;
+Perl_safesysmalloc(MEM_SIZE size)
{
Malloc_t ptr;
#ifdef HAS_64K_LIMIT
if (size > 0xffff) {
PerlIO_printf(PerlIO_stderr(), "Allocation too large: %lx\n", size) FLUSH;
- my_exit(1);
+ WITH_THX(my_exit(1));
}
#endif /* HAS_64K_LIMIT */
#ifdef DEBUGGING
if ((long)size < 0)
- croak("panic: malloc");
+ Perl_croak_nocontext("panic: malloc");
#endif
- ptr = malloc(size?size:1); /* malloc(0) is NASTY on our system */
+ ptr = PerlMem_malloc(size?size:1); /* malloc(0) is NASTY on our system */
#if !(defined(I286) || defined(atarist))
- DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%x: (%05d) malloc %ld bytes\n",ptr,an++,(long)size));
+ DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%x: (%05d) malloc %ld bytes\n",ptr,PL_an++,(long)size));
#else
- DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) malloc %ld bytes\n",ptr,an++,(long)size));
+ DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) malloc %ld bytes\n",ptr,PL_an++,(long)size));
#endif
if (ptr != Nullch)
return ptr;
- else if (nomemok)
+ else if (PL_nomemok)
return Nullch;
else {
- PerlIO_puts(PerlIO_stderr(),no_mem) FLUSH;
- my_exit(1);
+ PerlIO_puts(PerlIO_stderr(),PL_no_mem) FLUSH;
+ WITH_THX(my_exit(1));
+ return Nullch;
}
/*NOTREACHED*/
}
-/* paranoid version of realloc */
+/* paranoid version of system's realloc() */
Malloc_t
-saferealloc(where,size)
-Malloc_t where;
-MEM_SIZE size;
+Perl_safesysrealloc(Malloc_t where,MEM_SIZE size)
{
Malloc_t ptr;
#if !defined(STANDARD_C) && !defined(HAS_REALLOC_PROTOTYPE)
- Malloc_t realloc();
+ Malloc_t PerlMem_realloc();
#endif /* !defined(STANDARD_C) && !defined(HAS_REALLOC_PROTOTYPE) */
#ifdef HAS_64K_LIMIT
- if (size > 0xffff) {
- PerlIO_printf(PerlIO_stderr(), "Reallocation too large: %lx\n", size) FLUSH;
- my_exit(1);
- }
+ if (size > 0xffff) {
+ PerlIO_printf(PerlIO_stderr(),
+ "Reallocation too large: %lx\n", size) FLUSH;
+ WITH_THX(my_exit(1));
+ }
#endif /* HAS_64K_LIMIT */
+ if (!size) {
+ safesysfree(where);
+ return NULL;
+ }
+
if (!where)
- croak("Null realloc");
+ return safesysmalloc(size);
#ifdef DEBUGGING
if ((long)size < 0)
- croak("panic: realloc");
+ Perl_croak_nocontext("panic: realloc");
#endif
- ptr = realloc(where,size?size:1); /* realloc(0) is NASTY on our system */
+ ptr = PerlMem_realloc(where,size);
#if !(defined(I286) || defined(atarist))
DEBUG_m( {
- PerlIO_printf(Perl_debug_log, "0x%x: (%05d) rfree\n",where,an++);
- PerlIO_printf(Perl_debug_log, "0x%x: (%05d) realloc %ld bytes\n",ptr,an++,(long)size);
+ PerlIO_printf(Perl_debug_log, "0x%x: (%05d) rfree\n",where,PL_an++);
+ PerlIO_printf(Perl_debug_log, "0x%x: (%05d) realloc %ld bytes\n",ptr,PL_an++,(long)size);
} )
#else
DEBUG_m( {
- PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) rfree\n",where,an++);
- PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) realloc %ld bytes\n",ptr,an++,(long)size);
+ PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) rfree\n",where,PL_an++);
+ PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) realloc %ld bytes\n",ptr,PL_an++,(long)size);
} )
#endif
if (ptr != Nullch)
return ptr;
- else if (nomemok)
+ else if (PL_nomemok)
return Nullch;
else {
- PerlIO_puts(PerlIO_stderr(),no_mem) FLUSH;
- my_exit(1);
+ PerlIO_puts(PerlIO_stderr(),PL_no_mem) FLUSH;
+ WITH_THX(my_exit(1));
+ return Nullch;
}
/*NOTREACHED*/
}
-/* safe version of free */
+/* safe version of system's free() */
-void
-safefree(where)
-Malloc_t where;
+Free_t
+Perl_safesysfree(Malloc_t where)
{
#if !(defined(I286) || defined(atarist))
- DEBUG_m( PerlIO_printf(Perl_debug_log, "0x%x: (%05d) free\n",where,an++));
+ DEBUG_m( PerlIO_printf(Perl_debug_log, "0x%x: (%05d) free\n",(char *) where,PL_an++));
#else
- DEBUG_m( PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) free\n",where,an++));
+ DEBUG_m( PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) free\n",(char *) where,PL_an++));
#endif
if (where) {
/*SUPPRESS 701*/
- free(where);
+ PerlMem_free(where);
}
}
-/* safe version of calloc */
+/* safe version of system's calloc() */
Malloc_t
-safecalloc(count, size)
-MEM_SIZE count;
-MEM_SIZE size;
+Perl_safesyscalloc(MEM_SIZE count, MEM_SIZE size)
{
Malloc_t ptr;
#ifdef HAS_64K_LIMIT
- if (size * count > 0xffff) {
- PerlIO_printf(PerlIO_stderr(), "Allocation too large: %lx\n", size * count) FLUSH;
- my_exit(1);
- }
+ if (size * count > 0xffff) {
+ PerlIO_printf(PerlIO_stderr(),
+ "Allocation too large: %lx\n", size * count) FLUSH;
+ WITH_THX(my_exit(1));
+ }
#endif /* HAS_64K_LIMIT */
#ifdef DEBUGGING
if ((long)size < 0 || (long)count < 0)
- croak("panic: calloc");
+ Perl_croak_nocontext("panic: calloc");
#endif
+ size *= count;
+ ptr = PerlMem_malloc(size?size:1); /* malloc(0) is NASTY on our system */
#if !(defined(I286) || defined(atarist))
- DEBUG_m(PerlIO_printf(PerlIO_stderr(), "0x%x: (%05d) calloc %ld x %ld bytes\n",ptr,an++,(long)count,(long)size));
+ DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%x: (%05d) calloc %ld x %ld bytes\n",ptr,PL_an++,(long)count,(long)size));
#else
- DEBUG_m(PerlIO_printf(PerlIO_stderr(), "0x%lx: (%05d) calloc %ld x %ld bytes\n",ptr,an++,(long)count,(long)size));
+ DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) calloc %ld x %ld bytes\n",ptr,PL_an++,(long)count,(long)size));
#endif
- size *= count;
- ptr = malloc(size?size:1); /* malloc(0) is NASTY on our system */
if (ptr != Nullch) {
memset((void*)ptr, 0, size);
return ptr;
}
- else if (nomemok)
+ else if (PL_nomemok)
return Nullch;
else {
- PerlIO_puts(PerlIO_stderr(),no_mem) FLUSH;
- my_exit(1);
+ PerlIO_puts(PerlIO_stderr(),PL_no_mem) FLUSH;
+ WITH_THX(my_exit(1));
+ return Nullch;
}
/*NOTREACHED*/
}
-#endif /* !MYMALLOC */
-
#ifdef LEAKTEST
-#define ALIGN sizeof(long)
+struct mem_test_strut {
+ union {
+ long type;
+ char c[2];
+ } u;
+ long size;
+};
+
+# define ALIGN sizeof(struct mem_test_strut)
+
+# define sizeof_chunk(ch) (((struct mem_test_strut*) (ch))->size)
+# define typeof_chunk(ch) \
+ (((struct mem_test_strut*) (ch))->u.c[0] + ((struct mem_test_strut*) (ch))->u.c[1]*100)
+# define set_typeof_chunk(ch,t) \
+ (((struct mem_test_strut*) (ch))->u.c[0] = t % 100, ((struct mem_test_strut*) (ch))->u.c[1] = t / 100)
+#define SIZE_TO_Y(size) ( (size) > MAXY_SIZE \
+ ? MAXYCOUNT - 1 \
+ : ( (size) > 40 \
+ ? ((size) - 1)/8 + 5 \
+ : ((size) - 1)/4))
Malloc_t
-safexmalloc(x,size)
-I32 x;
-MEM_SIZE size;
+Perl_safexmalloc(I32 x, MEM_SIZE size)
{
- register Malloc_t where;
+ register char* where = (char*)safemalloc(size + ALIGN);
- where = safemalloc(size + ALIGN);
- xcount[x]++;
- where[0] = x % 100;
- where[1] = x / 100;
- return where + ALIGN;
+ xcount[x] += size;
+ xycount[x][SIZE_TO_Y(size)]++;
+ set_typeof_chunk(where, x);
+ sizeof_chunk(where) = size;
+ return (Malloc_t)(where + ALIGN);
}
Malloc_t
-safexrealloc(where,size)
-Malloc_t where;
-MEM_SIZE size;
+Perl_safexrealloc(Malloc_t wh, MEM_SIZE size)
{
- register Malloc_t new = saferealloc(where - ALIGN, size + ALIGN);
- return new + ALIGN;
+ char *where = (char*)wh;
+
+ if (!wh)
+ return safexmalloc(0,size);
+
+ {
+ MEM_SIZE old = sizeof_chunk(where - ALIGN);
+ int t = typeof_chunk(where - ALIGN);
+ register char* new = (char*)saferealloc(where - ALIGN, size + ALIGN);
+
+ xycount[t][SIZE_TO_Y(old)]--;
+ xycount[t][SIZE_TO_Y(size)]++;
+ xcount[t] += size - old;
+ sizeof_chunk(new) = size;
+ return (Malloc_t)(new + ALIGN);
+ }
}
void
-safexfree(where)
-Malloc_t where;
+Perl_safexfree(Malloc_t wh)
{
I32 x;
-
+ char *where = (char*)wh;
+ MEM_SIZE size;
+
if (!where)
return;
where -= ALIGN;
+ size = sizeof_chunk(where);
x = where[0] + 100 * where[1];
- xcount[x]--;
+ xcount[x] -= size;
+ xycount[x][SIZE_TO_Y(size)]--;
safefree(where);
}
Malloc_t
-safexcalloc(x,count,size)
-I32 x;
-MEM_SIZE count;
-MEM_SIZE size;
+Perl_safexcalloc(I32 x,MEM_SIZE count, MEM_SIZE size)
{
- register Malloc_t where;
-
- where = safexmalloc(x, size * count + ALIGN);
- xcount[x]++;
- memset((void*)where + ALIGN, 0, size * count);
- where[0] = x % 100;
- where[1] = x / 100;
- return where + ALIGN;
+ register char * where = (char*)safexmalloc(x, size * count + ALIGN);
+ xcount[x] += size;
+ xycount[x][SIZE_TO_Y(size)]++;
+ memset((void*)(where + ALIGN), 0, size * count);
+ set_typeof_chunk(where, x);
+ sizeof_chunk(where) = size;
+ return (Malloc_t)(where + ALIGN);
}
-static void
-xstat()
+STATIC void
+S_xstat(pTHX_ int flag)
{
- register I32 i;
+ register I32 i, j, total = 0;
+ I32 subtot[MAXYCOUNT];
+ for (j = 0; j < MAXYCOUNT; j++) {
+ subtot[j] = 0;
+ }
+
+ PerlIO_printf(PerlIO_stderr(), " Id subtot 4 8 12 16 20 24 28 32 36 40 48 56 64 72 80 80+\n", total);
for (i = 0; i < MAXXCOUNT; i++) {
- if (xcount[i] > lastxcount[i]) {
- PerlIO_printf(PerlIO_stderr(),"%2d %2d\t%ld\n", i / 100, i % 100, xcount[i]);
+ total += xcount[i];
+ for (j = 0; j < MAXYCOUNT; j++) {
+ subtot[j] += xycount[i][j];
+ }
+ if (flag == 0
+ ? xcount[i] /* Have something */
+ : (flag == 2
+ ? xcount[i] != lastxcount[i] /* Changed */
+ : xcount[i] > lastxcount[i])) { /* Growed */
+ PerlIO_printf(PerlIO_stderr(),"%2d %02d %7ld ", i / 100, i % 100,
+ flag == 2 ? xcount[i] - lastxcount[i] : xcount[i]);
lastxcount[i] = xcount[i];
+ for (j = 0; j < MAXYCOUNT; j++) {
+ if ( flag == 0
+ ? xycount[i][j] /* Have something */
+ : (flag == 2
+ ? xycount[i][j] != lastxycount[i][j] /* Changed */
+ : xycount[i][j] > lastxycount[i][j])) { /* Growed */
+ PerlIO_printf(PerlIO_stderr(),"%3ld ",
+ flag == 2
+ ? xycount[i][j] - lastxycount[i][j]
+ : xycount[i][j]);
+ lastxycount[i][j] = xycount[i][j];
+ } else {
+ PerlIO_printf(PerlIO_stderr(), " . ", xycount[i][j]);
+ }
+ }
+ PerlIO_printf(PerlIO_stderr(), "\n");
+ }
+ }
+ if (flag != 2) {
+ PerlIO_printf(PerlIO_stderr(), "Total %7ld ", total);
+ for (j = 0; j < MAXYCOUNT; j++) {
+ if (subtot[j]) {
+ PerlIO_printf(PerlIO_stderr(), "%3ld ", subtot[j]);
+ } else {
+ PerlIO_printf(PerlIO_stderr(), " . ");
+ }
}
+ PerlIO_printf(PerlIO_stderr(), "\n");
}
}
/* copy a string up to some (non-backslashed) delimiter, if any */
char *
-cpytill(to,from,fromend,delim,retlen)
-register char *to;
-register char *from;
-register char *fromend;
-register int delim;
-I32 *retlen;
+Perl_delimcpy(pTHX_ register char *to, register char *toend, register char *from, register char *fromend, register int delim, I32 *retlen)
{
- char *origto = to;
-
- for (; from < fromend; from++,to++) {
+ register I32 tolen;
+ for (tolen = 0; from < fromend; from++, tolen++) {
if (*from == '\\') {
if (from[1] == delim)
from++;
- else if (from[1] == '\\')
- *to++ = *from++;
+ else {
+ if (to < toend)
+ *to++ = *from;
+ tolen++;
+ from++;
+ }
}
else if (*from == delim)
break;
- *to = *from;
+ if (to < toend)
+ *to++ = *from;
}
- *to = '\0';
- *retlen = to - origto;
+ if (to < toend)
+ *to = '\0';
+ *retlen = tolen;
return from;
}
/* This routine was donated by Corey Satten. */
char *
-instr(big, little)
-register char *big;
-register char *little;
+Perl_instr(pTHX_ register const char *big, register const char *little)
{
- register char *s, *x;
+ register const char *s, *x;
register I32 first;
if (!little)
- return big;
+ return (char*)big;
first = *little++;
if (!first)
- return big;
+ return (char*)big;
while (*big) {
if (*big++ != first)
continue;
}
}
if (!*s)
- return big-1;
+ return (char*)(big-1);
}
return Nullch;
}
/* same as instr but allow embedded nulls */
char *
-ninstr(big, bigend, little, lend)
-register char *big;
-register char *bigend;
-char *little;
-char *lend;
+Perl_ninstr(pTHX_ register const char *big, register const char *bigend, const char *little, const char *lend)
{
- register char *s, *x;
+ register const char *s, *x;
register I32 first = *little;
- register char *littleend = lend;
+ register const char *littleend = lend;
if (!first && little >= littleend)
- return big;
+ return (char*)big;
if (bigend - big < littleend - little)
return Nullch;
bigend -= littleend - little++;
}
}
if (s >= littleend)
- return big-1;
+ return (char*)(big-1);
}
return Nullch;
}
/* reverse of the above--find last substring */
char *
-rninstr(big, bigend, little, lend)
-register char *big;
-char *bigend;
-char *little;
-char *lend;
-{
- register char *bigbeg;
- register char *s, *x;
+Perl_rninstr(pTHX_ register const char *big, const char *bigend, const char *little, const char *lend)
+{
+ register const char *bigbeg;
+ register const char *s, *x;
register I32 first = *little;
- register char *littleend = lend;
+ register const char *littleend = lend;
if (!first && little >= littleend)
- return bigend;
+ return (char*)bigend;
bigbeg = big;
big = bigend - (littleend - little++);
while (big >= bigbeg) {
}
}
if (s >= littleend)
- return big+1;
+ return (char*)(big+1);
}
return Nullch;
}
-#ifdef LC_CTYPE
-
/*
* Set up for a new ctype locale.
*/
void
-perl_new_ctype(newctype)
- char *newctype;
+Perl_new_ctype(pTHX_ const char *newctype)
{
+#ifdef USE_LOCALE_CTYPE
+
int i;
for (i = 0; i < 256; i++) {
if (isUPPER_LC(i))
- fold_locale[i] = toLOWER_LC(i);
+ PL_fold_locale[i] = toLOWER_LC(i);
else if (isLOWER_LC(i))
- fold_locale[i] = toUPPER_LC(i);
+ PL_fold_locale[i] = toUPPER_LC(i);
else
- fold_locale[i] = i;
+ PL_fold_locale[i] = i;
}
-}
-
-#endif /* LC_CTYPE */
-#ifdef LC_COLLATE
+#endif /* USE_LOCALE_CTYPE */
+}
/*
* Set up for a new collation locale.
*/
void
-perl_new_collate(newcoll)
- char *newcoll;
+Perl_new_collate(pTHX_ const char *newcoll)
{
+#ifdef USE_LOCALE_COLLATE
+
if (! newcoll) {
- if (collation_name) {
- ++collation_ix;
- Safefree(collation_name);
- collation_name = NULL;
- collation_standard = TRUE;
-#ifdef HAS_STRXFRM
- collxfrm_base = 0;
- collxfrm_mult = 2;
-#endif /* HAS_STRXFRM */
+ if (PL_collation_name) {
+ ++PL_collation_ix;
+ Safefree(PL_collation_name);
+ PL_collation_name = NULL;
+ PL_collation_standard = TRUE;
+ PL_collxfrm_base = 0;
+ PL_collxfrm_mult = 2;
}
return;
}
- if (! collation_name || strNE(collation_name, newcoll)) {
- ++collation_ix;
- Safefree(collation_name);
- collation_name = savepv(newcoll);
- collation_standard = (strEQ(newcoll, "C") || strEQ(newcoll, "POSIX"));
+ if (! PL_collation_name || strNE(PL_collation_name, newcoll)) {
+ ++PL_collation_ix;
+ Safefree(PL_collation_name);
+ PL_collation_name = savepv(newcoll);
+ PL_collation_standard = (strEQ(newcoll, "C") || strEQ(newcoll, "POSIX"));
-#ifdef HAS_STRXFRM
{
/* 2: at most so many chars ('a', 'b'). */
/* 50: surely no system expands a char more. */
Size_t fb = strxfrm(xbuf, "ab", XFRMBUFSIZE);
SSize_t mult = fb - fa;
if (mult < 1)
- croak("strxfrm() gets absurd");
- collxfrm_base = (fa > mult) ? (fa - mult) : 0;
- collxfrm_mult = mult;
+ Perl_croak(aTHX_ "strxfrm() gets absurd");
+ PL_collxfrm_base = (fa > mult) ? (fa - mult) : 0;
+ PL_collxfrm_mult = mult;
}
-#endif /* HAS_STRXFRM */
}
-}
-#endif /* LC_COLLATE */
+#endif /* USE_LOCALE_COLLATE */
+}
-#ifdef LC_NUMERIC
+void
+perl_set_numeric_radix(void)
+{
+#ifdef USE_LOCALE_NUMERIC
+# ifdef HAS_LOCALECONV
+ struct lconv* lc;
+
+ lc = localeconv();
+ if (lc && lc->decimal_point)
+ /* We assume that decimal separator aka the radix
+ * character is always a single character. If it
+ * ever is a string, this needs to be rethunk. */
+ PL_numeric_radix = *lc->decimal_point;
+ else
+ PL_numeric_radix = 0;
+# endif /* HAS_LOCALECONV */
+#else
+ PL_numeric_radix = 0;
+#endif /* USE_LOCALE_NUMERIC */
+}
/*
* Set up for a new numeric locale.
*/
void
-perl_new_numeric(newnum)
- char *newnum;
+Perl_new_numeric(pTHX_ const char *newnum)
{
+#ifdef USE_LOCALE_NUMERIC
+
if (! newnum) {
- if (numeric_name) {
- Safefree(numeric_name);
- numeric_name = NULL;
- numeric_standard = TRUE;
- numeric_local = TRUE;
+ if (PL_numeric_name) {
+ Safefree(PL_numeric_name);
+ PL_numeric_name = NULL;
+ PL_numeric_standard = TRUE;
+ PL_numeric_local = TRUE;
}
return;
}
- if (! numeric_name || strNE(numeric_name, newnum)) {
- Safefree(numeric_name);
- numeric_name = savepv(newnum);
- numeric_standard = (strEQ(newnum, "C") || strEQ(newnum, "POSIX"));
- numeric_local = TRUE;
+ if (! PL_numeric_name || strNE(PL_numeric_name, newnum)) {
+ Safefree(PL_numeric_name);
+ PL_numeric_name = savepv(newnum);
+ PL_numeric_standard = (strEQ(newnum, "C") || strEQ(newnum, "POSIX"));
+ PL_numeric_local = TRUE;
+ perl_set_numeric_radix();
}
+
+#endif /* USE_LOCALE_NUMERIC */
}
void
-perl_numeric_standard()
+Perl_set_numeric_standard(pTHX)
{
- if (! numeric_standard) {
+#ifdef USE_LOCALE_NUMERIC
+
+ if (! PL_numeric_standard) {
setlocale(LC_NUMERIC, "C");
- numeric_standard = TRUE;
- numeric_local = FALSE;
+ PL_numeric_standard = TRUE;
+ PL_numeric_local = FALSE;
}
+
+#endif /* USE_LOCALE_NUMERIC */
}
void
-perl_numeric_local()
+Perl_set_numeric_local(pTHX)
{
- if (! numeric_local) {
- setlocale(LC_NUMERIC, numeric_name);
- numeric_standard = FALSE;
- numeric_local = TRUE;
+#ifdef USE_LOCALE_NUMERIC
+
+ if (! PL_numeric_local) {
+ setlocale(LC_NUMERIC, PL_numeric_name);
+ PL_numeric_standard = FALSE;
+ PL_numeric_local = TRUE;
+ perl_set_numeric_radix();
}
-}
-#endif /* LC_NUMERIC */
+#endif /* USE_LOCALE_NUMERIC */
+}
-/* Initialize locale awareness */
+/*
+ * Initialize locale awareness.
+ */
int
-perl_init_i18nl10n(printwarn)
- int printwarn;
+Perl_init_i18nl10n(pTHX_ int printwarn)
{
int ok = 1;
/* returns
* -1 = fallback to C locale failed
*/
-#ifdef HAS_SETLOCALE
+#ifdef USE_LOCALE
- char *lc_all = getenv("LC_ALL");
- char *lang = getenv("LANG");
-#ifdef LC_CTYPE
- char *lc_ctype = getenv("LC_CTYPE");
+#ifdef USE_LOCALE_CTYPE
char *curctype = NULL;
-#endif /* LC_CTYPE */
-#ifdef LC_COLLATE
- char *lc_collate = getenv("LC_COLLATE");
+#endif /* USE_LOCALE_CTYPE */
+#ifdef USE_LOCALE_COLLATE
char *curcoll = NULL;
-#endif /* LC_COLLATE */
-#ifdef LC_NUMERIC
- char *lc_numeric = getenv("LC_NUMERIC");
+#endif /* USE_LOCALE_COLLATE */
+#ifdef USE_LOCALE_NUMERIC
char *curnum = NULL;
-#endif /* LC_NUMERIC */
+#endif /* USE_LOCALE_NUMERIC */
+#ifdef __GLIBC__
+ char *language = PerlEnv_getenv("LANGUAGE");
+#endif
+ char *lc_all = PerlEnv_getenv("LC_ALL");
+ char *lang = PerlEnv_getenv("LANG");
bool setlocale_failure = FALSE;
- char *subloc;
+
+#ifdef LOCALE_ENVIRON_REQUIRED
+
+ /*
+ * Ultrix setlocale(..., "") fails if there are no environment
+ * variables from which to get a locale name.
+ */
+
+ bool done = FALSE;
#ifdef LC_ALL
- subloc = NULL;
- if (! setlocale(LC_ALL, ""))
- setlocale_failure = TRUE;
-#else
- subloc = "";
+ if (lang) {
+ if (setlocale(LC_ALL, ""))
+ done = TRUE;
+ else
+ setlocale_failure = TRUE;
+ }
+ if (!setlocale_failure) {
+#ifdef USE_LOCALE_CTYPE
+ if (! (curctype =
+ setlocale(LC_CTYPE,
+ (!done && (lang || PerlEnv_getenv("LC_CTYPE")))
+ ? "" : Nullch)))
+ setlocale_failure = TRUE;
+#endif /* USE_LOCALE_CTYPE */
+#ifdef USE_LOCALE_COLLATE
+ if (! (curcoll =
+ setlocale(LC_COLLATE,
+ (!done && (lang || PerlEnv_getenv("LC_COLLATE")))
+ ? "" : Nullch)))
+ setlocale_failure = TRUE;
+#endif /* USE_LOCALE_COLLATE */
+#ifdef USE_LOCALE_NUMERIC
+ if (! (curnum =
+ setlocale(LC_NUMERIC,
+ (!done && (lang || PerlEnv_getenv("LC_NUMERIC")))
+ ? "" : Nullch)))
+ setlocale_failure = TRUE;
+#endif /* USE_LOCALE_NUMERIC */
+ }
+
#endif /* LC_ALL */
-#ifdef LC_CTYPE
- if (! (curctype = setlocale(LC_CTYPE, subloc)))
- setlocale_failure = TRUE;
-#endif /* LC_CTYPE */
-#ifdef LC_COLLATE
- if (! (curcoll = setlocale(LC_COLLATE, subloc)))
- setlocale_failure = TRUE;
-#endif /* LC_COLLATE */
-#ifdef LC_NUMERIC
- if (! (curnum = setlocale(LC_NUMERIC, subloc)))
+#endif /* !LOCALE_ENVIRON_REQUIRED */
+
+#ifdef LC_ALL
+ if (! setlocale(LC_ALL, ""))
setlocale_failure = TRUE;
-#endif /* LC_NUMERIC */
+#endif /* LC_ALL */
- if (setlocale_failure && (lc_all || lang)) {
- char *perl_badlang;
+ if (!setlocale_failure) {
+#ifdef USE_LOCALE_CTYPE
+ if (! (curctype = setlocale(LC_CTYPE, "")))
+ setlocale_failure = TRUE;
+#endif /* USE_LOCALE_CTYPE */
+#ifdef USE_LOCALE_COLLATE
+ if (! (curcoll = setlocale(LC_COLLATE, "")))
+ setlocale_failure = TRUE;
+#endif /* USE_LOCALE_COLLATE */
+#ifdef USE_LOCALE_NUMERIC
+ if (! (curnum = setlocale(LC_NUMERIC, "")))
+ setlocale_failure = TRUE;
+#endif /* USE_LOCALE_NUMERIC */
+ }
+
+ if (setlocale_failure) {
+ char *p;
+ bool locwarn = (printwarn > 1 ||
+ printwarn &&
+ (!(p = PerlEnv_getenv("PERL_BADLANG")) || atoi(p)));
+
+ if (locwarn) {
+#ifdef LC_ALL
+
+ PerlIO_printf(PerlIO_stderr(),
+ "perl: warning: Setting locale failed.\n");
- if (printwarn > 1 ||
- printwarn &&
- (!(perl_badlang = getenv("PERL_BADLANG")) || atoi(perl_badlang))) {
-
+#else /* !LC_ALL */
+
PerlIO_printf(PerlIO_stderr(),
"perl: warning: Setting locale failed for the categories:\n\t");
-#ifdef LC_CTYPE
+#ifdef USE_LOCALE_CTYPE
if (! curctype)
PerlIO_printf(PerlIO_stderr(), "LC_CTYPE ");
-#endif /* LC_CTYPE */
-#ifdef LC_COLLATE
+#endif /* USE_LOCALE_CTYPE */
+#ifdef USE_LOCALE_COLLATE
if (! curcoll)
PerlIO_printf(PerlIO_stderr(), "LC_COLLATE ");
-#endif /* LC_COLLATE */
-#ifdef LC_NUMERIC
+#endif /* USE_LOCALE_COLLATE */
+#ifdef USE_LOCALE_NUMERIC
if (! curnum)
PerlIO_printf(PerlIO_stderr(), "LC_NUMERIC ");
-#endif /* LC_NUMERIC */
+#endif /* USE_LOCALE_NUMERIC */
PerlIO_printf(PerlIO_stderr(), "\n");
+#endif /* LC_ALL */
+
PerlIO_printf(PerlIO_stderr(),
"perl: warning: Please check that your locale settings:\n");
+#ifdef __GLIBC__
+ PerlIO_printf(PerlIO_stderr(),
+ "\tLANGUAGE = %c%s%c,\n",
+ language ? '"' : '(',
+ language ? language : "unset",
+ language ? '"' : ')');
+#endif
+
PerlIO_printf(PerlIO_stderr(),
"\tLC_ALL = %c%s%c,\n",
lc_all ? '"' : '(',
lc_all ? lc_all : "unset",
lc_all ? '"' : ')');
-#ifdef LC_CTYPE
- if (! curctype)
- PerlIO_printf(PerlIO_stderr(),
- "\tLC_CTYPE = %c%s%c,\n",
- lc_ctype ? '"' : '(',
- lc_ctype ? lc_ctype : "unset",
- lc_ctype ? '"' : ')');
-#endif /* LC_CTYPE */
-#ifdef LC_COLLATE
- if (! curcoll)
- PerlIO_printf(PerlIO_stderr(),
- "\tLC_COLLATE = %c%s%c,\n",
- lc_collate ? '"' : '(',
- lc_collate ? lc_collate : "unset",
- lc_collate ? '"' : ')');
-#endif /* LC_COLLATE */
-#ifdef LC_NUMERIC
- if (! curcoll)
- PerlIO_printf(PerlIO_stderr(),
- "\tLC_NUMERIC = %c%s%c,\n",
- lc_numeric ? '"' : '(',
- lc_numeric ? lc_numeric : "unset",
- lc_numeric ? '"' : ')');
-#endif /* LC_NUMERIC */
+
+ {
+ char **e;
+ for (e = environ; *e; e++) {
+ if (strnEQ(*e, "LC_", 3)
+ && strnNE(*e, "LC_ALL=", 7)
+ && (p = strchr(*e, '=')))
+ PerlIO_printf(PerlIO_stderr(), "\t%.*s = \"%s\",\n",
+ (int)(p - *e), *e, p + 1);
+ }
+ }
+
PerlIO_printf(PerlIO_stderr(),
"\tLANG = %c%s%c\n",
- lang ? '"' : ')',
+ lang ? '"' : '(',
lang ? lang : "unset",
lang ? '"' : ')');
PerlIO_printf(PerlIO_stderr(),
" are supported and installed on your system.\n");
-
- ok = 0;
}
#ifdef LC_ALL
- if (setlocale_failure) {
- PerlIO_printf(PerlIO_stderr(),
- "perl: warning: Falling back to the \"C\" locale.\n");
- if (setlocale(LC_ALL, "C")) {
-#ifdef LC_CTYPE
- curctype = "C";
-#endif /* LC_CTYPE */
-#ifdef LC_COLLATE
- curcoll = "C";
-#endif /* LC_COLLATE */
-#ifdef LC_NUMERIC
- curnum = "C";
-#endif /* LC_NUMERIC */
- }
- else {
+
+ if (setlocale(LC_ALL, "C")) {
+ if (locwarn)
PerlIO_printf(PerlIO_stderr(),
- "perl: warning: Failed to fall back to the \"C\" locale.\n");
- ok = -1;
- }
+ "perl: warning: Falling back to the standard locale (\"C\").\n");
+ ok = 0;
+ }
+ else {
+ if (locwarn)
+ PerlIO_printf(PerlIO_stderr(),
+ "perl: warning: Failed to fall back to the standard locale (\"C\").\n");
+ ok = -1;
}
+
#else /* ! LC_ALL */
- PerlIO_printf(PerlIO_stderr(),
- "perl: warning: Cannot fall back to the \"C\" locale.\n");
+
+ if (0
+#ifdef USE_LOCALE_CTYPE
+ || !(curctype || setlocale(LC_CTYPE, "C"))
+#endif /* USE_LOCALE_CTYPE */
+#ifdef USE_LOCALE_COLLATE
+ || !(curcoll || setlocale(LC_COLLATE, "C"))
+#endif /* USE_LOCALE_COLLATE */
+#ifdef USE_LOCALE_NUMERIC
+ || !(curnum || setlocale(LC_NUMERIC, "C"))
+#endif /* USE_LOCALE_NUMERIC */
+ )
+ {
+ if (locwarn)
+ PerlIO_printf(PerlIO_stderr(),
+ "perl: warning: Cannot fall back to the standard locale (\"C\").\n");
+ ok = -1;
+ }
+
#endif /* ! LC_ALL */
+
+#ifdef USE_LOCALE_CTYPE
+ curctype = setlocale(LC_CTYPE, Nullch);
+#endif /* USE_LOCALE_CTYPE */
+#ifdef USE_LOCALE_COLLATE
+ curcoll = setlocale(LC_COLLATE, Nullch);
+#endif /* USE_LOCALE_COLLATE */
+#ifdef USE_LOCALE_NUMERIC
+ curnum = setlocale(LC_NUMERIC, Nullch);
+#endif /* USE_LOCALE_NUMERIC */
}
-#ifdef LC_CTYPE
- perl_new_ctype(curctype);
-#endif /* LC_NUMERIC */
+#ifdef USE_LOCALE_CTYPE
+ new_ctype(curctype);
+#endif /* USE_LOCALE_CTYPE */
-#ifdef LC_COLLATE
- perl_new_collate(curcoll);
-#endif /* LC_NUMERIC */
+#ifdef USE_LOCALE_COLLATE
+ new_collate(curcoll);
+#endif /* USE_LOCALE_COLLATE */
-#ifdef LC_NUMERIC
- perl_new_numeric(curnum);
-#endif /* LC_NUMERIC */
+#ifdef USE_LOCALE_NUMERIC
+ new_numeric(curnum);
+#endif /* USE_LOCALE_NUMERIC */
-#endif /* #if defined(HAS_SETLOCALE) */
+#endif /* USE_LOCALE */
return ok;
}
/* Backwards compatibility. */
int
-perl_init_i18nl14n(printwarn)
- int printwarn;
+Perl_init_i18nl14n(pTHX_ int printwarn)
{
- perl_init_i18nl10n(printwarn);
+ return init_i18nl10n(printwarn);
}
-#ifdef HAS_STRXFRM
+#ifdef USE_LOCALE_COLLATE
/*
* mem_collxfrm() is a bit like strxfrm() but with two important
* Please see sv_collxfrm() to see how this is used.
*/
char *
-mem_collxfrm(s, len, xlen)
- const char *s;
- STRLEN len;
- STRLEN *xlen;
+Perl_mem_collxfrm(pTHX_ const char *s, STRLEN len, STRLEN *xlen)
{
char *xbuf;
- STRLEN xalloc, xin, xout;
+ STRLEN xAlloc, xin, xout; /* xalloc is a reserved word in VC */
/* the first sizeof(collationix) bytes are used by sv_collxfrm(). */
/* the +1 is for the terminating NUL. */
- xalloc = sizeof(collation_ix) + collxfrm_base + (collxfrm_mult * len) + 1;
- New(171, xbuf, xalloc, char);
+ xAlloc = sizeof(PL_collation_ix) + PL_collxfrm_base + (PL_collxfrm_mult * len) + 1;
+ New(171, xbuf, xAlloc, char);
if (! xbuf)
goto bad;
- *(U32*)xbuf = collation_ix;
- xout = sizeof(collation_ix);
+ *(U32*)xbuf = PL_collation_ix;
+ xout = sizeof(PL_collation_ix);
for (xin = 0; xin < len; ) {
SSize_t xused;
for (;;) {
- xused = strxfrm(xbuf + xout, s + xin, xalloc - xout);
+ xused = strxfrm(xbuf + xout, s + xin, xAlloc - xout);
if (xused == -1)
goto bad;
- if (xused < xalloc - xout)
+ if (xused < xAlloc - xout)
break;
- xalloc = (2 * xalloc) + 1;
- Renew(xbuf, xalloc, char);
+ xAlloc = (2 * xAlloc) + 1;
+ Renew(xbuf, xAlloc, char);
if (! xbuf)
goto bad;
}
}
xbuf[xout] = '\0';
- *xlen = xout - sizeof(collation_ix);
+ *xlen = xout - sizeof(PL_collation_ix);
return xbuf;
bad:
return NULL;
}
-#endif /* HAS_STRXFRM */
+#endif /* USE_LOCALE_COLLATE */
+
+#define FBM_TABLE_OFFSET 2 /* Number of bytes between EOS and table*/
+
+/* As a space optimization, we do not compile tables for strings of length
+ 0 and 1, and for strings of length 2 unless FBMcf_TAIL. These are
+ special-cased in fbm_instr().
+
+ If FBMcf_TAIL, the table is created as if the string has a trailing \n. */
void
-fbm_compile(sv)
-SV *sv;
+Perl_fbm_compile(pTHX_ SV *sv, U32 flags /* not used yet */)
{
- register unsigned char *s;
- register unsigned char *table;
+ register U8 *s;
+ register U8 *table;
register U32 i;
- register U32 len = SvCUR(sv);
+ STRLEN len;
I32 rarest = 0;
U32 frequency = 256;
- if (len > 255)
- return; /* can't have offsets that big */
- Sv_Grow(sv,len+258);
- table = (unsigned char*)(SvPVX(sv) + len + 1);
- s = table - 2;
- for (i = 0; i < 256; i++) {
- table[i] = len;
- }
- i = 0;
- while (s >= (unsigned char*)(SvPVX(sv)))
- {
- if (table[*s] == len)
- table[*s] = i;
- s--,i++;
+ if (flags & FBMcf_TAIL)
+ sv_catpvn(sv, "\n", 1); /* Taken into account in fbm_instr() */
+ s = (U8*)SvPV_force(sv, len);
+ (void)SvUPGRADE(sv, SVt_PVBM);
+ if (len == 0) /* TAIL might be on on a zero-length string. */
+ return;
+ if (len > 2) {
+ I32 mlen = len;
+ unsigned char *sb;
+
+ if (mlen > 255)
+ mlen = 255;
+ Sv_Grow(sv,len + 256 + FBM_TABLE_OFFSET);
+ table = (unsigned char*)(SvPVX(sv) + len + FBM_TABLE_OFFSET);
+ s = table - 1 - FBM_TABLE_OFFSET; /* Last char */
+ for (i = 0; i < 256; i++) {
+ table[i] = mlen;
+ }
+ table[-1] = flags; /* Not used yet */
+ i = 0;
+ sb = s - mlen;
+ while (s >= sb) {
+ if (table[*s] == mlen)
+ table[*s] = i;
+ s--, i++;
+ }
}
- sv_upgrade(sv, SVt_PVBM);
sv_magic(sv, Nullsv, 'B', Nullch, 0); /* deep magic */
SvVALID_on(sv);
s = (unsigned char*)(SvPVX(sv)); /* deeper magic */
for (i = 0; i < len; i++) {
- if (freq[s[i]] < frequency) {
+ if (PL_freq[s[i]] < frequency) {
rarest = i;
- frequency = freq[s[i]];
+ frequency = PL_freq[s[i]];
}
}
BmRARE(sv) = s[rarest];
BmPREVIOUS(sv) = rarest;
+ BmUSEFUL(sv) = 100; /* Initial value */
+ if (flags & FBMcf_TAIL)
+ SvTAIL_on(sv);
DEBUG_r(PerlIO_printf(Perl_debug_log, "rarest char %c at %d\n",BmRARE(sv),BmPREVIOUS(sv)));
}
+/* If SvTAIL(littlestr), it has a fake '\n' at end. */
+/* If SvTAIL is actually due to \Z or \z, this gives false positives
+ if multiline */
+
char *
-fbm_instr(big, bigend, littlestr)
-unsigned char *big;
-register unsigned char *bigend;
-SV *littlestr;
+Perl_fbm_instr(pTHX_ unsigned char *big, register unsigned char *bigend, SV *littlestr, U32 flags)
{
register unsigned char *s;
- register I32 tmp;
- register I32 littlelen;
- register unsigned char *little;
- register unsigned char *table;
- register unsigned char *olds;
- register unsigned char *oldlittle;
-
- if (SvTYPE(littlestr) != SVt_PVBM || !SvVALID(littlestr)) {
- STRLEN len;
- char *l = SvPV(littlestr,len);
- if (!len)
+ STRLEN l;
+ register unsigned char *little = (unsigned char *)SvPV(littlestr,l);
+ register STRLEN littlelen = l;
+ register I32 multiline = flags & FBMrf_MULTILINE;
+
+ if (bigend - big < littlelen) {
+ check_tail:
+ if ( SvTAIL(littlestr)
+ && (bigend - big == littlelen - 1)
+ && (littlelen == 1
+ || *big == *little && memEQ(big, little, littlelen - 1)))
return (char*)big;
- return ninstr((char*)big,(char*)bigend, l, l + len);
+ return Nullch;
}
- littlelen = SvCUR(littlestr);
- if (SvTAIL(littlestr) && !multiline) { /* tail anchored? */
- if (littlelen > bigend - big)
+ if (littlelen <= 2) { /* Special-cased */
+ register char c;
+
+ if (littlelen == 1) {
+ if (SvTAIL(littlestr) && !multiline) { /* Anchor only! */
+ /* Know that bigend != big. */
+ if (bigend[-1] == '\n')
+ return (char *)(bigend - 1);
+ return (char *) bigend;
+ }
+ s = big;
+ while (s < bigend) {
+ if (*s == *little)
+ return (char *)s;
+ s++;
+ }
+ if (SvTAIL(littlestr))
+ return (char *) bigend;
+ return Nullch;
+ }
+ if (!littlelen)
+ return (char*)big; /* Cannot be SvTAIL! */
+
+ /* littlelen is 2 */
+ if (SvTAIL(littlestr) && !multiline) {
+ if (bigend[-1] == '\n' && bigend[-2] == *little)
+ return (char*)bigend - 2;
+ if (bigend[-1] == *little)
+ return (char*)bigend - 1;
return Nullch;
- little = (unsigned char*)SvPVX(littlestr);
+ }
+ {
+ /* This should be better than FBM if c1 == c2, and almost
+ as good otherwise: maybe better since we do less indirection.
+ And we save a lot of memory by caching no table. */
+ register unsigned char c1 = little[0];
+ register unsigned char c2 = little[1];
+
+ s = big + 1;
+ bigend--;
+ if (c1 != c2) {
+ while (s <= bigend) {
+ if (s[0] == c2) {
+ if (s[-1] == c1)
+ return (char*)s - 1;
+ s += 2;
+ continue;
+ }
+ next_chars:
+ if (s[0] == c1) {
+ if (s == bigend)
+ goto check_1char_anchor;
+ if (s[1] == c2)
+ return (char*)s;
+ else {
+ s++;
+ goto next_chars;
+ }
+ }
+ else
+ s += 2;
+ }
+ goto check_1char_anchor;
+ }
+ /* Now c1 == c2 */
+ while (s <= bigend) {
+ if (s[0] == c1) {
+ if (s[-1] == c1)
+ return (char*)s - 1;
+ if (s == bigend)
+ goto check_1char_anchor;
+ if (s[1] == c1)
+ return (char*)s;
+ s += 3;
+ }
+ else
+ s += 2;
+ }
+ }
+ check_1char_anchor: /* One char and anchor! */
+ if (SvTAIL(littlestr) && (*bigend == *little))
+ return (char *)bigend; /* bigend is already decremented. */
+ return Nullch;
+ }
+ if (SvTAIL(littlestr) && !multiline) { /* tail anchored? */
s = bigend - littlelen;
- if (*s == *little && memcmp((char*)s,(char*)little,littlelen)==0)
+ if (s >= big
+ && bigend[-1] == '\n'
+ && *s == *little
+ /* Automatically of length > 2 */
+ && memEQ((char*)s + 1, (char*)little + 1, littlelen - 2))
return (char*)s; /* how sweet it is */
- else if (bigend[-1] == '\n' && little[littlelen-1] != '\n'
- && s > big) {
- s--;
- if (*s == *little && memcmp((char*)s,(char*)little,littlelen)==0)
+ if (s[1] == *little && memEQ((char*)s + 2,(char*)little + 1,
+ littlelen - 2))
+ return (char*)s + 1; /* how sweet it is */
+ return Nullch;
+ }
+ if (SvTYPE(littlestr) != SVt_PVBM || !SvVALID(littlestr)) {
+ char *b = ninstr((char*)big,(char*)bigend,
+ (char*)little, (char*)little + littlelen);
+
+ if (!b && SvTAIL(littlestr)) { /* Automatically multiline! */
+ /* Chop \n from littlestr: */
+ s = bigend - littlelen + 1;
+ if (*s == *little && memEQ((char*)s + 1, (char*)little + 1,
+ littlelen - 2))
return (char*)s;
+ return Nullch;
}
- return Nullch;
+ return b;
}
- table = (unsigned char*)(SvPVX(littlestr) + littlelen + 1);
- if (--littlelen >= bigend - big)
- return Nullch;
- s = big + littlelen;
- oldlittle = little = table - 2;
- if (s < bigend) {
- top2:
- /*SUPPRESS 560*/
- if (tmp = table[*s]) {
+
+ { /* Do actual FBM. */
+ register unsigned char *table = little + littlelen + FBM_TABLE_OFFSET;
+ register unsigned char *oldlittle;
+
+ if (littlelen > bigend - big)
+ return Nullch;
+ --littlelen; /* Last char found by table lookup */
+
+ s = big + littlelen;
+ little += littlelen; /* last char */
+ oldlittle = little;
+ if (s < bigend) {
+ register I32 tmp;
+
+ top2:
+ /*SUPPRESS 560*/
+ if (tmp = table[*s]) {
#ifdef POINTERRIGOR
- if (bigend - s > tmp) {
+ if (bigend - s > tmp) {
+ s += tmp;
+ goto top2;
+ }
s += tmp;
- goto top2;
- }
#else
- if ((s += tmp) < bigend)
- goto top2;
-#endif
- return Nullch;
- }
- else {
- tmp = littlelen; /* less expensive than calling strncmp() */
- olds = s;
- while (tmp--) {
- if (*--s == *--little)
- continue;
- s = olds + 1; /* here we pay the price for failure */
- little = oldlittle;
- if (s < bigend) /* fake up continue to outer loop */
+ if ((s += tmp) < bigend)
goto top2;
- return Nullch;
+#endif
+ goto check_end;
+ }
+ else { /* less expensive than calling strncmp() */
+ register unsigned char *olds = s;
+
+ tmp = littlelen;
+
+ while (tmp--) {
+ if (*--s == *--little)
+ continue;
+ differ:
+ s = olds + 1; /* here we pay the price for failure */
+ little = oldlittle;
+ if (s < bigend) /* fake up continue to outer loop */
+ goto top2;
+ goto check_end;
+ }
+ return (char *)s;
}
- return (char *)s;
}
+ check_end:
+ if ( s == bigend && (table[-1] & FBMcf_TAIL)
+ && memEQ(bigend - littlelen, oldlittle - littlelen, littlelen) )
+ return (char*)bigend - littlelen;
+ return Nullch;
}
- return Nullch;
}
+/* start_shift, end_shift are positive quantities which give offsets
+ of ends of some substring of bigstr.
+ If `last' we want the last occurence.
+ old_posp is the way of communication between consequent calls if
+ the next call needs to find the .
+ The initial *old_posp should be -1.
+
+ Note that we take into account SvTAIL, so one can get extra
+ optimizations if _ALL flag is set.
+ */
+
+/* If SvTAIL is actually due to \Z or \z, this gives false positives
+ if PL_multiline. In fact if !PL_multiline the autoritative answer
+ is not supported yet. */
+
char *
-screaminstr(bigstr, littlestr)
-SV *bigstr;
-SV *littlestr;
+Perl_screaminstr(pTHX_ SV *bigstr, SV *littlestr, I32 start_shift, I32 end_shift, I32 *old_posp, I32 last)
{
+ dTHR;
register unsigned char *s, *x;
register unsigned char *big;
register I32 pos;
register I32 previous;
register I32 first;
register unsigned char *little;
- register unsigned char *bigend;
+ register I32 stop_pos;
register unsigned char *littleend;
-
- if ((pos = screamfirst[BmRARE(littlestr)]) < 0)
+ I32 found = 0;
+
+ if (*old_posp == -1
+ ? (pos = PL_screamfirst[BmRARE(littlestr)]) < 0
+ : (((pos = *old_posp), pos += PL_screamnext[pos]) == 0)) {
+ cant_find:
+ if ( BmRARE(littlestr) == '\n'
+ && BmPREVIOUS(littlestr) == SvCUR(littlestr) - 1) {
+ little = (unsigned char *)(SvPVX(littlestr));
+ littleend = little + SvCUR(littlestr);
+ first = *little++;
+ goto check_tail;
+ }
return Nullch;
+ }
+
little = (unsigned char *)(SvPVX(littlestr));
littleend = little + SvCUR(littlestr);
first = *little++;
+ /* The value of pos we can start at: */
previous = BmPREVIOUS(littlestr);
big = (unsigned char *)(SvPVX(bigstr));
- bigend = big + SvCUR(bigstr);
- while (pos < previous) {
- if (!(pos += screamnext[pos]))
- return Nullch;
+ /* The value of pos we can stop at: */
+ stop_pos = SvCUR(bigstr) - end_shift - (SvCUR(littlestr) - 1 - previous);
+ if (previous + start_shift > stop_pos) {
+ if (previous + start_shift == stop_pos + 1) /* A fake '\n'? */
+ goto check_tail;
+ return Nullch;
+ }
+ while (pos < previous + start_shift) {
+ if (!(pos += PL_screamnext[pos]))
+ goto cant_find;
}
#ifdef POINTERRIGOR
do {
+ if (pos >= stop_pos) break;
if (big[pos-previous] != first)
continue;
for (x=big+pos+1-previous,s=little; s < littleend; /**/ ) {
- if (x >= bigend)
- return Nullch;
if (*s++ != *x++) {
s--;
break;
}
}
- if (s == littleend)
- return (char *)(big+pos-previous);
- } while ( pos += screamnext[pos] );
+ if (s == littleend) {
+ *old_posp = pos;
+ if (!last) return (char *)(big+pos-previous);
+ found = 1;
+ }
+ } while ( pos += PL_screamnext[pos] );
+ return (last && found) ? (char *)(big+(*old_posp)-previous) : Nullch;
#else /* !POINTERRIGOR */
big -= previous;
do {
+ if (pos >= stop_pos) break;
if (big[pos] != first)
continue;
for (x=big+pos+1,s=little; s < littleend; /**/ ) {
- if (x >= bigend)
- return Nullch;
if (*s++ != *x++) {
s--;
break;
}
}
- if (s == littleend)
- return (char *)(big+pos);
- } while ( pos += screamnext[pos] );
+ if (s == littleend) {
+ *old_posp = pos;
+ if (!last) return (char *)(big+pos);
+ found = 1;
+ }
+ } while ( pos += PL_screamnext[pos] );
+ if (last && found)
+ return (char *)(big+(*old_posp));
#endif /* POINTERRIGOR */
+ check_tail:
+ if (!SvTAIL(littlestr) || (end_shift > 0))
+ return Nullch;
+ /* Ignore the trailing "\n". This code is not microoptimized */
+ big = (unsigned char *)(SvPVX(bigstr) + SvCUR(bigstr));
+ stop_pos = littleend - little; /* Actual littlestr len */
+ if (stop_pos == 0)
+ return (char*)big;
+ big -= stop_pos;
+ if (*big == first
+ && ((stop_pos == 1) || memEQ(big + 1, little, stop_pos - 1)))
+ return (char*)big;
return Nullch;
}
I32
-ibcmp(s1, s2, len)
-char *s1, *s2;
-register I32 len;
+Perl_ibcmp(pTHX_ const char *s1, const char *s2, register I32 len)
{
register U8 *a = (U8 *)s1;
register U8 *b = (U8 *)s2;
while (len--) {
- if (*a != *b && *a != fold[*b])
+ if (*a != *b && *a != PL_fold[*b])
return 1;
a++,b++;
}
}
I32
-ibcmp_locale(s1, s2, len)
-char *s1, *s2;
-register I32 len;
+Perl_ibcmp_locale(pTHX_ const char *s1, const char *s2, register I32 len)
{
register U8 *a = (U8 *)s1;
register U8 *b = (U8 *)s2;
while (len--) {
- if (*a != *b && *a != fold_locale[*b])
+ if (*a != *b && *a != PL_fold_locale[*b])
return 1;
a++,b++;
}
/* copy a string to a safe spot */
char *
-savepv(sv)
-char *sv;
+Perl_savepv(pTHX_ const char *sv)
{
register char *newaddr;
/* same thing but with a known length */
char *
-savepvn(sv, len)
-char *sv;
-register I32 len;
+Perl_savepvn(pTHX_ const char *sv, register I32 len)
{
register char *newaddr;
return newaddr;
}
-#if !defined(I_STDARG) && !defined(I_VARARGS)
+/* the SV for Perl_form() and mess() is not kept in an arena */
-/*
- * Fallback on the old hackers way of doing varargs
- */
+STATIC SV *
+S_mess_alloc(pTHX)
+{
+ dTHR;
+ SV *sv;
+ XPVMG *any;
+
+ if (!PL_dirty)
+ return sv_2mortal(newSVpvn("",0));
+
+ if (PL_mess_sv)
+ return PL_mess_sv;
-/*VARARGS1*/
+ /* Create as PVMG now, to avoid any upgrading later */
+ New(905, sv, 1, SV);
+ Newz(905, any, 1, XPVMG);
+ SvFLAGS(sv) = SVt_PVMG;
+ SvANY(sv) = (void*)any;
+ SvREFCNT(sv) = 1 << 30; /* practically infinite */
+ PL_mess_sv = sv;
+ return sv;
+}
+
+#ifdef PERL_IMPLICIT_CONTEXT
char *
-mess(pat,a1,a2,a3,a4)
-char *pat;
-long a1, a2, a3, a4;
+Perl_form_nocontext(const char* pat, ...)
{
- char *s;
- char *s_start;
- I32 usermess = strEQ(pat,"%s");
- SV *tmpstr;
-
- s = s_start = buf;
- if (usermess) {
- tmpstr = sv_newmortal();
- sv_setpv(tmpstr, (char*)a1);
- *s++ = SvPVX(tmpstr)[SvCUR(tmpstr)-1];
- }
- else {
- (void)sprintf(s,pat,a1,a2,a3,a4);
- s += strlen(s);
- }
+ dTHX;
+ SV *sv = mess_alloc();
+ va_list args;
+ va_start(args, pat);
+ sv_vsetpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
+ va_end(args);
+ return SvPVX(sv);
+}
+#endif
- if (s[-1] != '\n') {
- if (dirty)
- strcpy(s, " during global destruction.\n");
- else {
- if (curcop->cop_line) {
- (void)sprintf(s," at %s line %ld",
- SvPVX(GvSV(curcop->cop_filegv)), (long)curcop->cop_line);
- s += strlen(s);
- }
- if (GvIO(last_in_gv) &&
- IoLINES(GvIOp(last_in_gv)) ) {
- (void)sprintf(s,", <%s> %s %ld",
- last_in_gv == argvgv ? "" : GvENAME(last_in_gv),
- strEQ(rs,"\n") ? "line" : "chunk",
- (long)IoLINES(GvIOp(last_in_gv)));
- s += strlen(s);
- }
- (void)strcpy(s,".\n");
- s += 2;
+char *
+Perl_form(pTHX_ const char* pat, ...)
+{
+ SV *sv = mess_alloc();
+ va_list args;
+ va_start(args, pat);
+ sv_vsetpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
+ va_end(args);
+ return SvPVX(sv);
+}
+
+SV *
+Perl_mess(pTHX_ const char *pat, va_list *args)
+{
+ SV *sv = mess_alloc();
+ static char dgd[] = " during global destruction.\n";
+
+ sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*));
+ if (!SvCUR(sv) || *(SvEND(sv) - 1) != '\n') {
+ dTHR;
+ if (PL_curcop->cop_line)
+ Perl_sv_catpvf(aTHX_ sv, " at %_ line %ld",
+ GvSV(PL_curcop->cop_filegv), (long)PL_curcop->cop_line);
+ if (GvIO(PL_last_in_gv) && IoLINES(GvIOp(PL_last_in_gv))) {
+ bool line_mode = (RsSIMPLE(PL_rs) &&
+ SvCUR(PL_rs) == 1 && *SvPVX(PL_rs) == '\n');
+ Perl_sv_catpvf(aTHX_ sv, ", <%s> %s %ld",
+ PL_last_in_gv == PL_argvgv ? "" : GvNAME(PL_last_in_gv),
+ line_mode ? "line" : "chunk",
+ (long)IoLINES(GvIOp(PL_last_in_gv)));
}
- if (usermess)
- sv_catpv(tmpstr,buf+1);
- }
-
- if (s - s_start >= sizeof(buf)) { /* Ooops! */
- if (usermess)
- PerlIO_puts(PerlIO_stderr(), SvPVX(tmpstr));
- else
- PerlIO_puts(PerlIO_stderr(), buf);
- PerlIO_puts(PerlIO_stderr(),"panic: message overflow - memory corrupted!\n");
- my_exit(1);
+ sv_catpv(sv, PL_dirty ? dgd : ".\n");
}
- if (usermess)
- return SvPVX(tmpstr);
- else
- return buf;
+ return sv;
}
-/*VARARGS1*/
-void croak(pat,a1,a2,a3,a4)
-char *pat;
-long a1, a2, a3, a4;
+STATIC OP *
+S_do_die(pTHX_ const char* pat, va_list *args)
{
- char *tmps;
+ dTHR;
char *message;
+ int was_in_eval = PL_in_eval;
HV *stash;
GV *gv;
CV *cv;
+ SV *msv;
+ STRLEN msglen;
+
+ DEBUG_S(PerlIO_printf(PerlIO_stderr(),
+ "%p: die: curstack = %p, mainstack = %p\n",
+ thr, PL_curstack, PL_mainstack));
- message = mess(pat,a1,a2,a3,a4);
- if (diehook) {
- SV *olddiehook = diehook;
- diehook = Nullsv; /* sv_2cv might call croak() */
+ if (pat) {
+ msv = mess(pat, args);
+ message = SvPV(msv,msglen);
+ }
+ else {
+ message = Nullch;
+ }
+
+ DEBUG_S(PerlIO_printf(PerlIO_stderr(),
+ "%p: die: message = %s\ndiehook = %p\n",
+ thr, message, PL_diehook));
+ if (PL_diehook) {
+ /* sv_2cv might call Perl_croak() */
+ SV *olddiehook = PL_diehook;
+ ENTER;
+ SAVESPTR(PL_diehook);
+ PL_diehook = Nullsv;
cv = sv_2cv(olddiehook, &stash, &gv, 0);
- diehook = olddiehook;
- if (cv && !CvDEPTH(cv)) {
+ LEAVE;
+ if (cv && !CvDEPTH(cv) && (CvROOT(cv) || CvXSUB(cv))) {
dSP;
+ SV *msg;
+
+ ENTER;
+ if (message) {
+ msg = newSVpvn(message, msglen);
+ SvREADONLY_on(msg);
+ SAVEFREESV(msg);
+ }
+ else {
+ msg = ERRSV;
+ }
- PUSHMARK(sp);
- EXTEND(sp, 1);
- PUSHs(sv_2mortal(newSVpv(message,0)));
+ PUSHSTACKi(PERLSI_DIEHOOK);
+ PUSHMARK(SP);
+ XPUSHs(msg);
PUTBACK;
- perl_call_sv((SV*)cv, G_DISCARD);
+ call_sv((SV*)cv, G_DISCARD);
+ POPSTACK;
+ LEAVE;
}
}
- if (in_eval) {
- restartop = die_where(message);
- Siglongjmp(top_env, 3);
- }
- PerlIO_puts(PerlIO_stderr(),message);
- (void)PerlIO_flush(PerlIO_stderr());
- if (e_tmpname) {
- if (e_fp) {
- PerlIO_close(e_fp);
- e_fp = Nullfp;
- }
- (void)UNLINK(e_tmpname);
- Safefree(e_tmpname);
- e_tmpname = Nullch;
- }
- statusvalue = SHIFTSTATUS(statusvalue);
-#ifdef VMS
- my_exit((U32)vaxc$errno?vaxc$errno:errno?errno:statusvalue?statusvalue:SS$_ABORT);
-#else
- my_exit((U32)((errno&255)?errno:((statusvalue&255)?statusvalue:255)));
+
+ PL_restartop = die_where(message, msglen);
+ DEBUG_S(PerlIO_printf(PerlIO_stderr(),
+ "%p: die: restartop = %p, was_in_eval = %d, top_env = %p\n",
+ thr, PL_restartop, was_in_eval, PL_top_env));
+ if ((!PL_restartop && was_in_eval) || PL_top_env->je_prev)
+ JMPENV_JUMP(3);
+ return PL_restartop;
+}
+
+#ifdef PERL_IMPLICIT_CONTEXT
+OP *
+Perl_die_nocontext(const char* pat, ...)
+{
+ dTHX;
+ OP *o;
+ va_list args;
+ va_start(args, pat);
+ o = do_die(aTHX_ pat, &args);
+ va_end(args);
+ return o;
+}
#endif
+
+OP *
+Perl_die(pTHX_ const char* pat, ...)
+{
+ OP *o;
+ va_list args;
+ va_start(args, pat);
+ o = do_die(aTHX_ pat, &args);
+ va_end(args);
+ return o;
}
-/*VARARGS1*/
-void warn(pat,a1,a2,a3,a4)
-char *pat;
-long a1, a2, a3, a4;
+STATIC void
+S_do_croak(pTHX_ const char* pat, va_list *args)
{
+ dTHR;
char *message;
- SV *sv;
HV *stash;
GV *gv;
CV *cv;
-
- message = mess(pat,a1,a2,a3,a4);
- if (warnhook) {
- SV *oldwarnhook = warnhook;
- warnhook = Nullsv; /* sv_2cv might end up calling warn() */
- cv = sv_2cv(oldwarnhook, &stash, &gv, 0);
- warnhook = oldwarnhook;
- if (cv && !CvDEPTH(cv)) {
+ SV *msv;
+ STRLEN msglen;
+
+ msv = mess(pat, args);
+ message = SvPV(msv,msglen);
+ DEBUG_S(PerlIO_printf(PerlIO_stderr(), "croak: 0x%lx %s", (unsigned long) thr, message));
+ if (PL_diehook) {
+ /* sv_2cv might call Perl_croak() */
+ SV *olddiehook = PL_diehook;
+ ENTER;
+ SAVESPTR(PL_diehook);
+ PL_diehook = Nullsv;
+ cv = sv_2cv(olddiehook, &stash, &gv, 0);
+ LEAVE;
+ if (cv && !CvDEPTH(cv) && (CvROOT(cv) || CvXSUB(cv))) {
dSP;
-
- PUSHMARK(sp);
- EXTEND(sp, 1);
- PUSHs(sv_2mortal(newSVpv(message,0)));
+ SV *msg;
+
+ ENTER;
+ msg = newSVpvn(message, msglen);
+ SvREADONLY_on(msg);
+ SAVEFREESV(msg);
+
+ PUSHSTACKi(PERLSI_DIEHOOK);
+ PUSHMARK(SP);
+ XPUSHs(msg);
PUTBACK;
- perl_call_sv((SV*)cv, G_DISCARD);
- return;
+ call_sv((SV*)cv, G_DISCARD);
+ POPSTACK;
+ LEAVE;
}
}
- PerlIO_puts(PerlIO_stderr(),message);
-#ifdef LEAKTEST
- DEBUG_L(xstat());
-#endif
- (void)PerlIO_flush(PerlIO_stderr());
-}
-
-#else /* !defined(I_STDARG) && !defined(I_VARARGS) */
-
-#ifdef I_STDARG
-char *
-mess(char *pat, va_list *args)
-#else
-/*VARARGS0*/
-char *
-mess(pat, args)
- char *pat;
- va_list *args;
-#endif
-{
- char *s;
- char *s_start;
- SV *tmpstr;
- I32 usermess;
-#ifndef HAS_VPRINTF
-#ifdef USE_CHAR_VSPRINTF
- char *vsprintf();
-#else
- I32 vsprintf();
+ if (PL_in_eval) {
+ PL_restartop = die_where(message, msglen);
+ JMPENV_JUMP(3);
+ }
+ {
+#ifdef USE_SFIO
+ /* SFIO can really mess with your errno */
+ int e = errno;
#endif
+ PerlIO_write(PerlIO_stderr(), message, msglen);
+ (void)PerlIO_flush(PerlIO_stderr());
+#ifdef USE_SFIO
+ errno = e;
#endif
-
- s = s_start = buf;
- usermess = strEQ(pat, "%s");
- if (usermess) {
- tmpstr = sv_newmortal();
- sv_setpv(tmpstr, va_arg(*args, char *));
- *s++ = SvPVX(tmpstr)[SvCUR(tmpstr)-1];
}
- else {
- (void) vsprintf(s,pat,*args);
- s += strlen(s);
- }
- va_end(*args);
-
- if (s[-1] != '\n') {
- if (dirty)
- strcpy(s, " during global destruction.\n");
- else {
- if (curcop->cop_line) {
- (void)sprintf(s," at %s line %ld",
- SvPVX(GvSV(curcop->cop_filegv)), (long)curcop->cop_line);
- s += strlen(s);
- }
- if (GvIO(last_in_gv) && IoLINES(GvIOp(last_in_gv))) {
- bool line_mode = (RsSIMPLE(rs) &&
- SvLEN(rs) == 1 && *SvPVX(rs) == '\n');
- (void)sprintf(s,", <%s> %s %ld",
- last_in_gv == argvgv ? "" : GvNAME(last_in_gv),
- line_mode ? "line" : "chunk",
- (long)IoLINES(GvIOp(last_in_gv)));
- s += strlen(s);
- }
- (void)strcpy(s,".\n");
- s += 2;
- }
- if (usermess)
- sv_catpv(tmpstr,buf+1);
- }
-
- if (s - s_start >= sizeof(buf)) { /* Ooops! */
- if (usermess)
- PerlIO_puts(PerlIO_stderr(), SvPVX(tmpstr));
- else
- PerlIO_puts(PerlIO_stderr(), buf);
- PerlIO_puts(PerlIO_stderr(), "panic: message overflow - memory corrupted!\n");
- my_exit(1);
- }
- if (usermess)
- return SvPVX(tmpstr);
- else
- return buf;
+ my_failure_exit();
}
-#ifdef I_STDARG
+#ifdef PERL_IMPLICIT_CONTEXT
void
-croak(char* pat, ...)
-#else
-/*VARARGS0*/
+Perl_croak_nocontext(const char *pat, ...)
+{
+ dTHX;
+ va_list args;
+ va_start(args, pat);
+ do_croak(pat, &args);
+ /* NOTREACHED */
+ va_end(args);
+}
+#endif /* PERL_IMPLICIT_CONTEXT */
+
void
-croak(pat, va_alist)
- char *pat;
- va_dcl
-#endif
+Perl_croak(pTHX_ const char *pat, ...)
{
va_list args;
+ va_start(args, pat);
+ do_croak(pat, &args);
+ /* NOTREACHED */
+ va_end(args);
+}
+
+STATIC void
+S_do_warn(pTHX_ const char* pat, va_list *args)
+{
char *message;
HV *stash;
GV *gv;
CV *cv;
-
-#ifdef I_STDARG
- va_start(args, pat);
-#else
- va_start(args);
-#endif
- message = mess(pat, &args);
- va_end(args);
- if (diehook) {
- SV *olddiehook = diehook;
- diehook = Nullsv; /* sv_2cv might call croak() */
- cv = sv_2cv(olddiehook, &stash, &gv, 0);
- diehook = olddiehook;
- if (cv && !CvDEPTH(cv)) {
+ SV *msv;
+ STRLEN msglen;
+
+ msv = mess(pat, args);
+ message = SvPV(msv, msglen);
+
+ if (PL_warnhook) {
+ /* sv_2cv might call Perl_warn() */
+ dTHR;
+ SV *oldwarnhook = PL_warnhook;
+ ENTER;
+ SAVESPTR(PL_warnhook);
+ PL_warnhook = Nullsv;
+ cv = sv_2cv(oldwarnhook, &stash, &gv, 0);
+ LEAVE;
+ if (cv && !CvDEPTH(cv) && (CvROOT(cv) || CvXSUB(cv))) {
dSP;
+ SV *msg;
- PUSHMARK(sp);
- EXTEND(sp, 1);
- PUSHs(sv_2mortal(newSVpv(message,0)));
+ ENTER;
+ msg = newSVpvn(message, msglen);
+ SvREADONLY_on(msg);
+ SAVEFREESV(msg);
+
+ PUSHSTACKi(PERLSI_WARNHOOK);
+ PUSHMARK(SP);
+ XPUSHs(msg);
PUTBACK;
- perl_call_sv((SV*)cv, G_DISCARD);
- }
- }
- if (in_eval) {
- restartop = die_where(message);
- Siglongjmp(top_env, 3);
- }
- PerlIO_puts(PerlIO_stderr(),message);
- (void)PerlIO_flush(PerlIO_stderr());
- if (e_tmpname) {
- if (e_fp) {
- PerlIO_close(e_fp);
- e_fp = Nullfp;
+ call_sv((SV*)cv, G_DISCARD);
+ POPSTACK;
+ LEAVE;
+ return;
}
- (void)UNLINK(e_tmpname);
- Safefree(e_tmpname);
- e_tmpname = Nullch;
}
- statusvalue = SHIFTSTATUS(statusvalue);
-#ifdef VMS
- my_exit((U32)(vaxc$errno?vaxc$errno:(statusvalue?statusvalue:44)));
-#else
- my_exit((U32)((errno&255)?errno:((statusvalue&255)?statusvalue:255)));
+ PerlIO_write(PerlIO_stderr(), message, msglen);
+#ifdef LEAKTEST
+ DEBUG_L(*message == '!'
+ ? (xstat(message[1]=='!'
+ ? (message[2]=='!' ? 2 : 1)
+ : 0)
+ , 0)
+ : 0);
#endif
+ (void)PerlIO_flush(PerlIO_stderr());
}
+#ifdef PERL_IMPLICIT_CONTEXT
void
-#ifdef I_STDARG
-warn(char* pat,...)
-#else
-/*VARARGS0*/
-warn(pat,va_alist)
- char *pat;
- va_dcl
-#endif
+Perl_warn_nocontext(const char *pat, ...)
+{
+ dTHX;
+ va_list args;
+ va_start(args, pat);
+ do_warn(pat, &args);
+ va_end(args);
+}
+#endif /* PERL_IMPLICIT_CONTEXT */
+
+void
+Perl_warn(pTHX_ const char *pat, ...)
+{
+ va_list args;
+ va_start(args, pat);
+ do_warn(pat, &args);
+ va_end(args);
+}
+
+void
+Perl_warner(pTHX_ U32 err, const char* pat,...)
{
+ dTHR;
va_list args;
char *message;
HV *stash;
GV *gv;
CV *cv;
+ SV *msv;
+ STRLEN msglen;
-#ifdef I_STDARG
va_start(args, pat);
-#else
- va_start(args);
-#endif
- message = mess(pat, &args);
+ msv = mess(pat, &args);
+ message = SvPV(msv, msglen);
va_end(args);
- if (warnhook) {
- SV *oldwarnhook = warnhook;
- warnhook = Nullsv; /* sv_2cv might end up calling warn() */
- cv = sv_2cv(oldwarnhook, &stash, &gv, 0);
- warnhook = oldwarnhook;
- if (cv && !CvDEPTH(cv)) {
- dSP;
+ if (ckDEAD(err)) {
+#ifdef USE_THREADS
+ DEBUG_S(PerlIO_printf(PerlIO_stderr(), "croak: 0x%lx %s", (unsigned long) thr, message));
+#endif /* USE_THREADS */
+ if (PL_diehook) {
+ /* sv_2cv might call Perl_croak() */
+ SV *olddiehook = PL_diehook;
+ ENTER;
+ SAVESPTR(PL_diehook);
+ PL_diehook = Nullsv;
+ cv = sv_2cv(olddiehook, &stash, &gv, 0);
+ LEAVE;
+ if (cv && !CvDEPTH(cv) && (CvROOT(cv) || CvXSUB(cv))) {
+ dSP;
+ SV *msg;
+
+ ENTER;
+ msg = newSVpvn(message, msglen);
+ SvREADONLY_on(msg);
+ SAVEFREESV(msg);
+
+ PUSHMARK(sp);
+ XPUSHs(msg);
+ PUTBACK;
+ call_sv((SV*)cv, G_DISCARD);
+
+ LEAVE;
+ }
+ }
+ if (PL_in_eval) {
+ PL_restartop = die_where(message, msglen);
+ JMPENV_JUMP(3);
+ }
+ PerlIO_write(PerlIO_stderr(), message, msglen);
+ (void)PerlIO_flush(PerlIO_stderr());
+ my_failure_exit();
- PUSHMARK(sp);
- EXTEND(sp, 1);
- PUSHs(sv_2mortal(newSVpv(message,0)));
- PUTBACK;
- perl_call_sv((SV*)cv, G_DISCARD);
- return;
- }
}
- PerlIO_puts(PerlIO_stderr(),message);
+ else {
+ if (PL_warnhook) {
+ /* sv_2cv might call Perl_warn() */
+ dTHR;
+ SV *oldwarnhook = PL_warnhook;
+ ENTER;
+ SAVESPTR(PL_warnhook);
+ PL_warnhook = Nullsv;
+ cv = sv_2cv(oldwarnhook, &stash, &gv, 0);
+ LEAVE;
+ if (cv && !CvDEPTH(cv) && (CvROOT(cv) || CvXSUB(cv))) {
+ dSP;
+ SV *msg;
+
+ ENTER;
+ msg = newSVpvn(message, msglen);
+ SvREADONLY_on(msg);
+ SAVEFREESV(msg);
+
+ PUSHMARK(sp);
+ XPUSHs(msg);
+ PUTBACK;
+ call_sv((SV*)cv, G_DISCARD);
+
+ LEAVE;
+ return;
+ }
+ }
+ PerlIO_write(PerlIO_stderr(), message, msglen);
#ifdef LEAKTEST
- DEBUG_L(xstat());
+ DEBUG_L(xstat());
#endif
- (void)PerlIO_flush(PerlIO_stderr());
+ (void)PerlIO_flush(PerlIO_stderr());
+ }
}
-#endif /* !defined(I_STDARG) && !defined(I_VARARGS) */
#ifndef VMS /* VMS' my_setenv() is in VMS.c */
+#if !defined(WIN32) && !defined(CYGWIN32)
void
-my_setenv(nam,val)
-char *nam, *val;
+Perl_my_setenv(pTHX_ char *nam, char *val)
{
+#ifndef PERL_USE_SAFE_PUTENV
+ /* most putenv()s leak, so we manipulate environ directly */
register I32 i=setenv_getix(nam); /* where does it go? */
- if (environ == origenviron) { /* need we copy environment? */
+ if (environ == PL_origenviron) { /* need we copy environment? */
I32 j;
I32 max;
char **tmpenv;
/*SUPPRESS 530*/
for (max = i; environ[max]; max++) ;
- New(901,tmpenv, max+2, char*);
- for (j=0; j<max; j++) /* copy environment */
- tmpenv[j] = savepv(environ[j]);
+ tmpenv = (char**)safesysmalloc((max+2) * sizeof(char*));
+ for (j=0; j<max; j++) { /* copy environment */
+ tmpenv[j] = (char*)safesysmalloc((strlen(environ[j])+1)*sizeof(char));
+ strcpy(tmpenv[j], environ[j]);
+ }
tmpenv[max] = Nullch;
environ = tmpenv; /* tell exec where it is now */
}
if (!val) {
+ safesysfree(environ[i]);
while (environ[i]) {
environ[i] = environ[i+1];
i++;
return;
}
if (!environ[i]) { /* does not exist yet */
- Renew(environ, i+2, char*); /* just expand it a bit */
+ environ = (char**)safesysrealloc(environ, (i+2) * sizeof(char*));
environ[i+1] = Nullch; /* make sure it's null terminated */
}
else
- Safefree(environ[i]);
- New(904, environ[i], strlen(nam) + strlen(val) + 2, char);
+ safesysfree(environ[i]);
+ environ[i] = (char*)safesysmalloc((strlen(nam)+strlen(val)+2) * sizeof(char));
+
#ifndef MSDOS
(void)sprintf(environ[i],"%s=%s",nam,val);/* all that work just for this */
#else
strcpy(environ[i],nam); strupr(environ[i]);
(void)sprintf(environ[i] + strlen(nam),"=%s",val);
#endif /* MSDOS */
+
+#else /* PERL_USE_SAFE_PUTENV */
+ char *new_env;
+
+ new_env = (char*)safesysmalloc((strlen(nam) + strlen(val) + 2) * sizeof(char));
+#ifndef MSDOS
+ (void)sprintf(new_env,"%s=%s",nam,val);/* all that work just for this */
+#else
+ strcpy(new_env,nam); strupr(new_env);
+ (void)sprintf(new_env + strlen(nam),"=%s",val);
+#endif
+ (void)putenv(new_env);
+#endif /* PERL_USE_SAFE_PUTENV */
+}
+
+#else /* if WIN32 */
+
+void
+Perl_my_setenv(pTHX_ char *nam,char *val)
+{
+
+#ifdef USE_WIN32_RTL_ENV
+
+ register char *envstr;
+ STRLEN namlen = strlen(nam);
+ STRLEN vallen;
+ char *oldstr = environ[setenv_getix(nam)];
+
+ /* putenv() has totally broken semantics in both the Borland
+ * and Microsoft CRTLs. They either store the passed pointer in
+ * the environment without making a copy, or make a copy and don't
+ * free it. And on top of that, they dont free() old entries that
+ * are being replaced/deleted. This means the caller must
+ * free any old entries somehow, or we end up with a memory
+ * leak every time my_setenv() is called. One might think
+ * one could directly manipulate environ[], like the UNIX code
+ * above, but direct changes to environ are not allowed when
+ * calling putenv(), since the RTLs maintain an internal
+ * *copy* of environ[]. Bad, bad, *bad* stink.
+ * GSAR 97-06-07
+ */
+
+ if (!val) {
+ if (!oldstr)
+ return;
+ val = "";
+ vallen = 0;
+ }
+ else
+ vallen = strlen(val);
+ envstr = (char*)safesysmalloc((namlen + vallen + 3) * sizeof(char));
+ (void)sprintf(envstr,"%s=%s",nam,val);
+ (void)PerlEnv_putenv(envstr);
+ if (oldstr)
+ safesysfree(oldstr);
+#ifdef _MSC_VER
+ safesysfree(envstr); /* MSVCRT leaks without this */
+#endif
+
+#else /* !USE_WIN32_RTL_ENV */
+
+ register char *envstr;
+ STRLEN len = strlen(nam) + 3;
+ if (!val) {
+ val = "";
+ }
+ len += strlen(val);
+ New(904, envstr, len, char);
+ (void)sprintf(envstr,"%s=%s",nam,val);
+ (void)PerlEnv_putenv(envstr);
+ Safefree(envstr);
+
+#endif
}
+#endif /* WIN32 */
+
I32
-setenv_getix(nam)
-char *nam;
+Perl_setenv_getix(pTHX_ char *nam)
{
register I32 i, len = strlen(nam);
for (i = 0; environ[i]; i++) {
- if (strnEQ(environ[i],nam,len) && environ[i][len] == '=')
+ if (
+#ifdef WIN32
+ strnicmp(environ[i],nam,len) == 0
+#else
+ strnEQ(environ[i],nam,len)
+#endif
+ && environ[i][len] == '=')
break; /* strnEQ must come first to avoid */
} /* potential SEGV's */
return i;
}
+
#endif /* !VMS */
#ifdef UNLINK_ALL_VERSIONS
I32
-unlnk(f) /* unlink all versions of a file */
-char *f;
+Perl_unlnk(pTHX_ char *f) /* unlink all versions of a file */
{
I32 i;
- for (i = 0; unlink(f) >= 0; i++) ;
+ for (i = 0; PerlLIO_unlink(f) >= 0; i++) ;
return i ? 0 : -1;
}
#endif
#if !defined(HAS_BCOPY) || !defined(HAS_SAFE_BCOPY)
char *
-my_bcopy(from,to,len)
-register char *from;
-register char *to;
-register I32 len;
+Perl_my_bcopy(pTHX_ register const char *from,register char *to,register I32 len)
{
char *retval = to;
}
#endif
+#ifndef HAS_MEMSET
+void *
+Perl_my_memset(pTHX_ register char *loc, register I32 ch, register I32 len)
+{
+ char *retval = loc;
+
+ while (len--)
+ *loc++ = ch;
+ return retval;
+}
+#endif
+
#if !defined(HAS_BZERO) && !defined(HAS_MEMSET)
char *
-my_bzero(loc,len)
-register char *loc;
-register I32 len;
+Perl_my_bzero(pTHX_ register char *loc, register I32 len)
{
char *retval = loc;
}
#endif
-#ifndef HAS_MEMCMP
+#if !defined(HAS_MEMCMP) || !defined(HAS_SANE_MEMCMP)
I32
-my_memcmp(s1,s2,len)
-register unsigned char *s1;
-register unsigned char *s2;
-register I32 len;
+Perl_my_memcmp(pTHX_ const char *s1, const char *s2, register I32 len)
{
+ register U8 *a = (U8 *)s1;
+ register U8 *b = (U8 *)s2;
register I32 tmp;
while (len--) {
- if (tmp = *s1++ - *s2++)
+ if (tmp = *a++ - *b++)
return tmp;
}
return 0;
}
-#endif /* HAS_MEMCMP */
+#endif /* !HAS_MEMCMP || !HAS_SANE_MEMCMP */
-#if defined(I_STDARG) || defined(I_VARARGS)
#ifndef HAS_VPRINTF
#ifdef USE_CHAR_VSPRINTF
#else
int
#endif
-vsprintf(dest, pat, args)
-char *dest, *pat, *args;
+vsprintf(char *dest, const char *pat, char *args)
{
FILE fakebuf;
}
#endif /* HAS_VPRINTF */
-#endif /* I_VARARGS || I_STDARGS */
#ifdef MYSWAP
#if BYTEORDER != 0x4321
short
-#ifndef CAN_PROTOTYPE
-my_swap(s)
-short s;
-#else
-my_swap(short s)
-#endif
+Perl_my_swap(pTHX_ short s)
{
#if (BYTEORDER & 1) == 0
short result;
}
long
-#ifndef CAN_PROTOTYPE
-my_htonl(l)
-register long l;
-#else
-my_htonl(long l)
-#endif
+Perl_my_htonl(pTHX_ long l)
{
union {
long result;
return u.result;
#else
#if ((BYTEORDER - 0x1111) & 0x444) || !(BYTEORDER & 0xf)
- croak("Unknown BYTEORDER\n");
+ Perl_croak(aTHX_ "Unknown BYTEORDER\n");
#else
register I32 o;
register I32 s;
}
long
-#ifndef CAN_PROTOTYPE
-my_ntohl(l)
-register long l;
-#else
-my_ntohl(long l)
-#endif
+Perl_my_ntohl(pTHX_ long l)
{
union {
long l;
return u.l;
#else
#if ((BYTEORDER - 0x1111) & 0x444) || !(BYTEORDER & 0xf)
- croak("Unknown BYTEORDER\n");
+ Perl_croak(aTHX_ "Unknown BYTEORDER\n");
#else
register I32 o;
register I32 s;
#define HTOV(name,type) \
type \
- name (n) \
- register type n; \
+ name (register type n) \
{ \
union { \
type value; \
#define VTOH(name,type) \
type \
- name (n) \
- register type n; \
+ name (register type n) \
{ \
union { \
type value; \
VTOH(vtohl,long)
#endif
-#if (!defined(DOSISH) || defined(HAS_FORK) || defined(AMIGAOS)) \
- && !defined(VMS) /* VMS' my_popen() is in VMS.c, same with OS/2. */
+ /* VMS' my_popen() is in VMS.c, same with OS/2. */
+#if (!defined(DOSISH) || defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(__OPEN_VM)
PerlIO *
-my_popen(cmd,mode)
-char *cmd;
-char *mode;
+Perl_my_popen(pTHX_ char *cmd, char *mode)
{
int p[2];
- register I32 this, that;
+ register I32 This, that;
register I32 pid;
SV *sv;
- I32 doexec =
-#ifdef AMIGAOS
- 1;
-#else
- strNE(cmd,"-");
-#endif
+ I32 doexec = strNE(cmd,"-");
+ I32 did_pipes = 0;
+ int pp[2];
+ PERL_FLUSHALL_FOR_CHILD;
#ifdef OS2
if (doexec) {
return my_syspopen(cmd,mode);
}
#endif
- if (pipe(p) < 0)
- return Nullfp;
- this = (*mode == 'w');
- that = !this;
- if (doexec && tainting) {
+ This = (*mode == 'w');
+ that = !This;
+ if (doexec && PL_tainting) {
taint_env();
taint_proper("Insecure %s%s", "EXEC");
}
+ if (PerlProc_pipe(p) < 0)
+ return Nullfp;
+ if (doexec && PerlProc_pipe(pp) >= 0)
+ did_pipes = 1;
while ((pid = (doexec?vfork():fork())) < 0) {
if (errno != EAGAIN) {
- close(p[this]);
+ PerlLIO_close(p[This]);
+ if (did_pipes) {
+ PerlLIO_close(pp[0]);
+ PerlLIO_close(pp[1]);
+ }
if (!doexec)
- croak("Can't fork");
+ Perl_croak(aTHX_ "Can't fork");
return Nullfp;
}
sleep(5);
if (pid == 0) {
GV* tmpgv;
+#undef THIS
+#undef THAT
#define THIS that
-#define THAT this
- close(p[THAT]);
+#define THAT This
+ PerlLIO_close(p[THAT]);
+ if (did_pipes) {
+ PerlLIO_close(pp[0]);
+#if defined(HAS_FCNTL) && defined(F_SETFD)
+ fcntl(pp[1], F_SETFD, FD_CLOEXEC);
+#endif
+ }
if (p[THIS] != (*mode == 'r')) {
- dup2(p[THIS], *mode == 'r');
- close(p[THIS]);
+ PerlLIO_dup2(p[THIS], *mode == 'r');
+ PerlLIO_close(p[THIS]);
}
+#ifndef OS2
if (doexec) {
#if !defined(HAS_FCNTL) || !defined(F_SETFD)
int fd;
#ifndef NOFILE
#define NOFILE 20
#endif
- for (fd = maxsysfd + 1; fd < NOFILE; fd++)
- close(fd);
+ for (fd = PL_maxsysfd + 1; fd < NOFILE; fd++)
+ if (fd != pp[1])
+ PerlLIO_close(fd);
#endif
- do_exec(cmd); /* may or may not use the shell */
- _exit(1);
+ do_exec3(cmd,pp[1],did_pipes); /* may or may not use the shell */
+ PerlProc__exit(1);
}
+#endif /* defined OS2 */
/*SUPPRESS 560*/
if (tmpgv = gv_fetchpv("$",TRUE, SVt_PV))
- sv_setiv(GvSV(tmpgv),(I32)getpid());
- forkprocess = 0;
- hv_clear(pidstatus); /* we have no children */
+ sv_setiv(GvSV(tmpgv), (IV)getpid());
+ PL_forkprocess = 0;
+ hv_clear(PL_pidstatus); /* we have no children */
return Nullfp;
#undef THIS
#undef THAT
}
do_execfree(); /* free any memory malloced by child on vfork */
- close(p[that]);
- if (p[that] < p[this]) {
- dup2(p[this], p[that]);
- close(p[this]);
- p[this] = p[that];
- }
- sv = *av_fetch(fdpid,p[this],TRUE);
+ PerlLIO_close(p[that]);
+ if (did_pipes)
+ PerlLIO_close(pp[1]);
+ if (p[that] < p[This]) {
+ PerlLIO_dup2(p[This], p[that]);
+ PerlLIO_close(p[This]);
+ p[This] = p[that];
+ }
+ sv = *av_fetch(PL_fdpid,p[This],TRUE);
(void)SvUPGRADE(sv,SVt_IV);
SvIVX(sv) = pid;
- forkprocess = pid;
- return PerlIO_fdopen(p[this], mode);
+ PL_forkprocess = pid;
+ if (did_pipes && pid > 0) {
+ int errkid;
+ int n = 0, n1;
+
+ while (n < sizeof(int)) {
+ n1 = PerlLIO_read(pp[0],
+ (void*)(((char*)&errkid)+n),
+ (sizeof(int)) - n);
+ if (n1 <= 0)
+ break;
+ n += n1;
+ }
+ if (n) { /* Error */
+ if (n != sizeof(int))
+ Perl_croak(aTHX_ "panic: kid popen errno read");
+ PerlLIO_close(pp[0]);
+ errno = errkid; /* Propagate errno from kid */
+ return Nullfp;
+ }
+ }
+ if (did_pipes)
+ PerlLIO_close(pp[0]);
+ return PerlIO_fdopen(p[This], mode);
}
#else
#if defined(atarist) || defined(DJGPP)
FILE *popen();
PerlIO *
-my_popen(cmd,mode)
-char *cmd;
-char *mode;
+Perl_my_popen(pTHX_ char *cmd, char *mode)
{
/* Needs work for PerlIO ! */
/* used 0 for 2nd parameter to PerlIO-exportFILE; apparently not used */
+ PERL_FLUSHALL_FOR_CHILD;
return popen(PerlIO_exportFILE(cmd, 0), mode);
}
#endif
#endif /* !DOSISH */
#ifdef DUMP_FDS
-dump_fds(s)
-char *s;
+void
+Perl_dump_fds(pTHX_ char *s)
{
int fd;
struct stat tmpstatbuf;
PerlIO_printf(PerlIO_stderr(),"%s", s);
for (fd = 0; fd < 32; fd++) {
- if (Fstat(fd,&tmpstatbuf) >= 0)
+ if (PerlLIO_fstat(fd,&tmpstatbuf) >= 0)
PerlIO_printf(PerlIO_stderr()," %d",fd);
}
PerlIO_printf(PerlIO_stderr(),"\n");
}
-#endif
+#endif /* DUMP_FDS */
#ifndef HAS_DUP2
int
-dup2(oldfd,newfd)
-int oldfd;
-int newfd;
+dup2(int oldfd, int newfd)
{
#if defined(HAS_FCNTL) && defined(F_DUPFD)
if (oldfd == newfd)
return oldfd;
- close(newfd);
+ PerlLIO_close(newfd);
return fcntl(oldfd, F_DUPFD, newfd);
#else
- int fdtmp[256];
+#define DUP2_MAX_FDS 256
+ int fdtmp[DUP2_MAX_FDS];
I32 fdx = 0;
int fd;
if (oldfd == newfd)
return oldfd;
- close(newfd);
- while ((fd = dup(oldfd)) != newfd && fd >= 0) /* good enough for low fd's */
+ PerlLIO_close(newfd);
+ /* good enough for low fd's... */
+ while ((fd = PerlLIO_dup(oldfd)) != newfd && fd >= 0) {
+ if (fdx >= DUP2_MAX_FDS) {
+ PerlLIO_close(fd);
+ fd = -1;
+ break;
+ }
fdtmp[fdx++] = fd;
+ }
while (fdx > 0)
- close(fdtmp[--fdx]);
+ PerlLIO_close(fdtmp[--fdx]);
return fd;
#endif
}
#ifdef HAS_SIGACTION
Sighandler_t
-rsignal(signo, handler)
-int signo;
-Sighandler_t handler;
+Perl_rsignal(pTHX_ int signo, Sighandler_t handler)
{
struct sigaction act, oact;
#ifdef SA_RESTART
act.sa_flags |= SA_RESTART; /* SVR4, 4.3+BSD */
#endif
+#ifdef SA_NOCLDWAIT
+ if (signo == SIGCHLD && handler == (Sighandler_t)SIG_IGN)
+ act.sa_flags |= SA_NOCLDWAIT;
+#endif
if (sigaction(signo, &act, &oact) == -1)
- return(SIG_ERR);
+ return SIG_ERR;
else
- return(oact.sa_handler);
+ return oact.sa_handler;
}
Sighandler_t
-rsignal_state(signo)
-int signo;
+Perl_rsignal_state(pTHX_ int signo)
{
struct sigaction oact;
}
int
-rsignal_save(signo, handler, save)
-int signo;
-Sighandler_t handler;
-Sigsave_t *save;
+Perl_rsignal_save(pTHX_ int signo, Sighandler_t handler, Sigsave_t *save)
{
struct sigaction act;
#ifdef SA_RESTART
act.sa_flags |= SA_RESTART; /* SVR4, 4.3+BSD */
#endif
+#ifdef SA_NOCLDWAIT
+ if (signo == SIGCHLD && handler == (Sighandler_t)SIG_IGN)
+ act.sa_flags |= SA_NOCLDWAIT;
+#endif
return sigaction(signo, &act, save);
}
int
-rsignal_restore(signo, save)
-int signo;
-Sigsave_t *save;
+Perl_rsignal_restore(pTHX_ int signo, Sigsave_t *save)
{
return sigaction(signo, save, (struct sigaction *)NULL);
}
#else /* !HAS_SIGACTION */
Sighandler_t
-rsignal(signo, handler)
-int signo;
-Sighandler_t handler;
+Perl_rsignal(pTHX_ int signo, Sighandler_t handler)
{
- return signal(signo, handler);
+ return PerlProc_signal(signo, handler);
}
static int sig_trapped;
static
Signal_t
-sig_trap(signo)
-int signo;
+sig_trap(int signo)
{
sig_trapped++;
}
Sighandler_t
-rsignal_state(signo)
-int signo;
+Perl_rsignal_state(pTHX_ int signo)
{
Sighandler_t oldsig;
sig_trapped = 0;
- oldsig = signal(signo, sig_trap);
- signal(signo, oldsig);
+ oldsig = PerlProc_signal(signo, sig_trap);
+ PerlProc_signal(signo, oldsig);
if (sig_trapped)
- kill(getpid(), signo);
+ PerlProc_kill(getpid(), signo);
return oldsig;
}
int
-rsignal_save(signo, handler, save)
-int signo;
-Sighandler_t handler;
-Sigsave_t *save;
+Perl_rsignal_save(pTHX_ int signo, Sighandler_t handler, Sigsave_t *save)
{
- *save = signal(signo, handler);
+ *save = PerlProc_signal(signo, handler);
return (*save == SIG_ERR) ? -1 : 0;
}
int
-rsignalrestore(signo, save)
-int signo;
-Sigsave_t *save;
+Perl_rsignal_restore(pTHX_ int signo, Sigsave_t *save)
{
- return (signal(signo, *save) == SIG_ERR) ? -1 : 0;
+ return (PerlProc_signal(signo, *save) == SIG_ERR) ? -1 : 0;
}
#endif /* !HAS_SIGACTION */
-
-#if (!defined(DOSISH) || defined(HAS_FORK) || defined(AMIGAOS)) \
- && !defined(VMS) /* VMS' my_popen() is in VMS.c */
+ /* VMS' my_pclose() is in VMS.c; same with OS/2 */
+#if (!defined(DOSISH) || defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(__OPEN_VM)
I32
-my_pclose(ptr)
-PerlIO *ptr;
+Perl_my_pclose(pTHX_ PerlIO *ptr)
{
Sigsave_t hstat, istat, qstat;
int status;
SV **svp;
int pid;
+ int pid2;
+ bool close_failed;
+ int saved_errno;
+#ifdef VMS
+ int saved_vaxc_errno;
+#endif
+#ifdef WIN32
+ int saved_win32_errno;
+#endif
- svp = av_fetch(fdpid,PerlIO_fileno(ptr),TRUE);
+ svp = av_fetch(PL_fdpid,PerlIO_fileno(ptr),TRUE);
pid = (int)SvIVX(*svp);
SvREFCNT_dec(*svp);
- *svp = &sv_undef;
+ *svp = &PL_sv_undef;
#ifdef OS2
if (pid == -1) { /* Opened by popen. */
return my_syspclose(ptr);
}
#endif
- PerlIO_close(ptr);
+ if ((close_failed = (PerlIO_close(ptr) == EOF))) {
+ saved_errno = errno;
+#ifdef VMS
+ saved_vaxc_errno = vaxc$errno;
+#endif
+#ifdef WIN32
+ saved_win32_errno = GetLastError();
+#endif
+ }
#ifdef UTS
- if(kill(pid, 0) < 0) { return(pid); } /* HOM 12/23/91 */
+ if(PerlProc_kill(pid, 0) < 0) { return(pid); } /* HOM 12/23/91 */
#endif
rsignal_save(SIGHUP, SIG_IGN, &hstat);
rsignal_save(SIGINT, SIG_IGN, &istat);
rsignal_save(SIGQUIT, SIG_IGN, &qstat);
do {
- pid = wait4pid(pid, &status, 0);
- } while (pid == -1 && errno == EINTR);
+ pid2 = wait4pid(pid, &status, 0);
+ } while (pid2 == -1 && errno == EINTR);
rsignal_restore(SIGHUP, &hstat);
rsignal_restore(SIGINT, &istat);
rsignal_restore(SIGQUIT, &qstat);
- return(pid < 0 ? pid : status);
+ if (close_failed) {
+ SETERRNO(saved_errno, saved_vaxc_errno);
+ return -1;
+ }
+ return(pid2 < 0 ? pid2 : status == 0 ? 0 : (errno = 0, status));
}
#endif /* !DOSISH */
-#if !defined(DOSISH) || defined(OS2)
+#if !defined(DOSISH) || defined(OS2) || defined(WIN32) || defined(CYGWIN32)
I32
-wait4pid(pid,statusp,flags)
-int pid;
-int *statusp;
-int flags;
+Perl_wait4pid(pTHX_ int pid, int *statusp, int flags)
{
SV *sv;
SV** svp;
- char spid[16];
+ char spid[TYPE_CHARS(int)];
if (!pid)
return -1;
if (pid > 0) {
sprintf(spid, "%d", pid);
- svp = hv_fetch(pidstatus,spid,strlen(spid),FALSE);
- if (svp && *svp != &sv_undef) {
+ svp = hv_fetch(PL_pidstatus,spid,strlen(spid),FALSE);
+ if (svp && *svp != &PL_sv_undef) {
*statusp = SvIVX(*svp);
- (void)hv_delete(pidstatus,spid,strlen(spid),G_DISCARD);
+ (void)hv_delete(PL_pidstatus,spid,strlen(spid),G_DISCARD);
return pid;
}
}
else {
HE *entry;
- hv_iterinit(pidstatus);
- if (entry = hv_iternext(pidstatus)) {
+ hv_iterinit(PL_pidstatus);
+ if (entry = hv_iternext(PL_pidstatus)) {
pid = atoi(hv_iterkey(entry,(I32*)statusp));
- sv = hv_iterval(pidstatus,entry);
+ sv = hv_iterval(PL_pidstatus,entry);
*statusp = SvIVX(sv);
sprintf(spid, "%d", pid);
- (void)hv_delete(pidstatus,spid,strlen(spid),G_DISCARD);
+ (void)hv_delete(PL_pidstatus,spid,strlen(spid),G_DISCARD);
return pid;
}
}
#ifdef HAS_WAITPID
- return waitpid(pid,statusp,flags);
-#else
-#ifdef HAS_WAIT4
+# ifdef HAS_WAITPID_RUNTIME
+ if (!HAS_WAITPID_RUNTIME)
+ goto hard_way;
+# endif
+ return PerlProc_waitpid(pid,statusp,flags);
+#endif
+#if !defined(HAS_WAITPID) && defined(HAS_WAIT4)
return wait4((pid==-1)?0:pid,statusp,flags,Null(struct rusage *));
-#else
+#endif
+#if !defined(HAS_WAITPID) && !defined(HAS_WAIT4) || defined(HAS_WAITPID_RUNTIME)
+ hard_way:
{
I32 result;
if (flags)
- croak("Can't do waitpid with flags");
+ Perl_croak(aTHX_ "Can't do waitpid with flags");
else {
- while ((result = wait(statusp)) != pid && pid > 0 && result >= 0)
+ while ((result = PerlProc_wait(statusp)) != pid && pid > 0 && result >= 0)
pidgone(result,*statusp);
if (result < 0)
*statusp = -1;
return result;
}
#endif
-#endif
}
-#endif /* !DOSISH */
+#endif /* !DOSISH || OS2 || WIN32 */
void
/*SUPPRESS 590*/
-pidgone(pid,status)
-int pid;
-int status;
+Perl_pidgone(pTHX_ int pid, int status)
{
register SV *sv;
- char spid[16];
+ char spid[TYPE_CHARS(int)];
sprintf(spid, "%d", pid);
- sv = *hv_fetch(pidstatus,spid,strlen(spid),TRUE);
+ sv = *hv_fetch(PL_pidstatus,spid,strlen(spid),TRUE);
(void)SvUPGRADE(sv,SVt_IV);
SvIVX(sv) = status;
return;
#ifdef HAS_FORK
int /* Cannot prototype with I32
in os2ish.h. */
-my_syspclose(ptr)
+my_syspclose(PerlIO *ptr)
#else
I32
-my_pclose(ptr)
+Perl_my_pclose(pTHX_ PerlIO *ptr)
#endif
-PerlIO *ptr;
{
/* Needs work for PerlIO ! */
FILE *f = PerlIO_findFILE(ptr);
#endif
void
-repeatcpy(to,from,len,count)
-register char *to;
-register char *from;
-I32 len;
-register I32 count;
+Perl_repeatcpy(pTHX_ register char *to, register const char *from, I32 len, register I32 count)
{
register I32 todo;
- register char *frombase = from;
+ register const char *frombase = from;
if (len == 1) {
- todo = *from;
+ register const char c = *from;
while (count-- > 0)
- *to++ = todo;
+ *to++ = c;
return;
}
while (count-- > 0) {
}
}
-#ifndef CASTNEGFLOAT
U32
-cast_ulong(f)
-double f;
+Perl_cast_ulong(pTHX_ double f)
{
long along;
return (unsigned long)along;
}
# undef BIGDOUBLE
-#endif
-
-#ifndef CASTI32
/* Unfortunately, on some systems the cast_uv() function doesn't
work with the system-supplied definition of ULONG_MAX. The
#endif
I32
-cast_i32(f)
-double f;
+Perl_cast_i32(pTHX_ double f)
{
if (f >= I32_MAX)
return (I32) I32_MAX;
}
IV
-cast_iv(f)
-double f;
+Perl_cast_iv(pTHX_ double f)
{
- if (f >= IV_MAX)
- return (IV) IV_MAX;
+ if (f >= IV_MAX) {
+ UV uv;
+
+ if (f >= (double)UV_MAX)
+ return (IV) UV_MAX;
+ uv = (UV) f;
+ return (IV)uv;
+ }
if (f <= IV_MIN)
return (IV) IV_MIN;
return (IV) f;
}
UV
-cast_uv(f)
-double f;
+Perl_cast_uv(pTHX_ double f)
{
if (f >= MY_UV_MAX)
return (UV) MY_UV_MAX;
+ if (f < 0) {
+ IV iv;
+
+ if (f < IV_MIN)
+ return (UV)IV_MIN;
+ iv = (IV) f;
+ return (UV) iv;
+ }
return (UV) f;
}
-#endif
-
#ifndef HAS_RENAME
I32
-same_dirent(a,b)
-char *a;
-char *b;
+Perl_same_dirent(pTHX_ char *a, char *b)
{
char *fa = strrchr(a,'/');
char *fb = strrchr(b,'/');
struct stat tmpstatbuf1;
struct stat tmpstatbuf2;
-#ifndef MAXPATHLEN
-#define MAXPATHLEN 1024
-#endif
- char tmpbuf[MAXPATHLEN+1];
+ SV *tmpsv = sv_newmortal();
if (fa)
fa++;
if (strNE(a,b))
return FALSE;
if (fa == a)
- strcpy(tmpbuf,".");
+ sv_setpv(tmpsv, ".");
else
- strncpy(tmpbuf, a, fa - a);
- if (Stat(tmpbuf, &tmpstatbuf1) < 0)
+ sv_setpvn(tmpsv, a, fa - a);
+ if (PerlLIO_stat(SvPVX(tmpsv), &tmpstatbuf1) < 0)
return FALSE;
if (fb == b)
- strcpy(tmpbuf,".");
+ sv_setpv(tmpsv, ".");
else
- strncpy(tmpbuf, b, fb - b);
- if (Stat(tmpbuf, &tmpstatbuf2) < 0)
+ sv_setpvn(tmpsv, b, fb - b);
+ if (PerlLIO_stat(SvPVX(tmpsv), &tmpstatbuf2) < 0)
return FALSE;
return tmpstatbuf1.st_dev == tmpstatbuf2.st_dev &&
tmpstatbuf1.st_ino == tmpstatbuf2.st_ino;
#endif /* !HAS_RENAME */
UV
-scan_oct(start, len, retlen)
-char *start;
-I32 len;
-I32 *retlen;
+Perl_scan_bin(pTHX_ char *start, I32 len, I32 *retlen)
+{
+ register char *s = start;
+ register UV retval = 0;
+ bool overflowed = FALSE;
+ while (len && *s >= '0' && *s <= '1') {
+ register UV n = retval << 1;
+ if (!overflowed && (n >> 1) != retval) {
+ Perl_warn(aTHX_ "Integer overflow in binary number");
+ overflowed = TRUE;
+ }
+ retval = n | (*s++ - '0');
+ len--;
+ }
+ if (len && (*s >= '2' && *s <= '9')) {
+ dTHR;
+ if (ckWARN(WARN_UNSAFE))
+ Perl_warner(aTHX_ WARN_UNSAFE, "Illegal binary digit '%c' ignored", *s);
+ }
+ *retlen = s - start;
+ return retval;
+}
+UV
+Perl_scan_oct(pTHX_ char *start, I32 len, I32 *retlen)
{
register char *s = start;
register UV retval = 0;
while (len && *s >= '0' && *s <= '7') {
register UV n = retval << 3;
if (!overflowed && (n >> 3) != retval) {
- warn("Integer overflow in octal number");
+ Perl_warn(aTHX_ "Integer overflow in octal number");
overflowed = TRUE;
}
retval = n | (*s++ - '0');
len--;
}
- if (dowarn && len && (*s == '8' || *s == '9'))
- warn("Illegal octal digit ignored");
+ if (len && (*s == '8' || *s == '9')) {
+ dTHR;
+ if (ckWARN(WARN_OCTAL))
+ Perl_warner(aTHX_ WARN_OCTAL, "Illegal octal digit '%c' ignored", *s);
+ }
*retlen = s - start;
return retval;
}
-unsigned long
-scan_hex(start, len, retlen)
-char *start;
-I32 len;
-I32 *retlen;
+UV
+Perl_scan_hex(pTHX_ char *start, I32 len, I32 *retlen)
{
register char *s = start;
register UV retval = 0;
bool overflowed = FALSE;
- char *tmp;
-
- while (len-- && *s && (tmp = strchr(hexdigit, *s))) {
- register UV n = retval << 4;
+ char *tmp = s;
+ register UV n;
+
+ while (len-- && *s) {
+ tmp = strchr((char *) PL_hexdigit, *s++);
+ if (!tmp) {
+ if (*(s-1) == '_' || (*(s-1) == 'x' && retval == 0))
+ continue;
+ else {
+ dTHR;
+ --s;
+ if (ckWARN(WARN_UNSAFE))
+ Perl_warner(aTHX_ WARN_UNSAFE,"Illegal hex digit '%c' ignored", *s);
+ break;
+ }
+ }
+ n = retval << 4;
if (!overflowed && (n >> 4) != retval) {
- warn("Integer overflow in hex number");
+ Perl_warn(aTHX_ "Integer overflow in hex number");
overflowed = TRUE;
}
- retval = n | (tmp - hexdigit) & 15;
- s++;
+ retval = n | ((tmp - PL_hexdigit) & 15);
}
*retlen = s - start;
return retval;
}
+char*
+Perl_find_script(pTHX_ char *scriptname, bool dosearch, char **search_ext, I32 flags)
+{
+ dTHR;
+ char *xfound = Nullch;
+ char *xfailed = Nullch;
+ char tmpbuf[MAXPATHLEN];
+ register char *s;
+ I32 len;
+ int retval;
+#if defined(DOSISH) && !defined(OS2) && !defined(atarist)
+# define SEARCH_EXTS ".bat", ".cmd", NULL
+# define MAX_EXT_LEN 4
+#endif
+#ifdef OS2
+# define SEARCH_EXTS ".cmd", ".btm", ".bat", ".pl", NULL
+# define MAX_EXT_LEN 4
+#endif
+#ifdef VMS
+# define SEARCH_EXTS ".pl", ".com", NULL
+# define MAX_EXT_LEN 4
+#endif
+ /* additional extensions to try in each dir if scriptname not found */
+#ifdef SEARCH_EXTS
+ char *exts[] = { SEARCH_EXTS };
+ char **ext = search_ext ? search_ext : exts;
+ int extidx = 0, i = 0;
+ char *curext = Nullch;
+#else
+# define MAX_EXT_LEN 0
+#endif
+
+ /*
+ * If dosearch is true and if scriptname does not contain path
+ * delimiters, search the PATH for scriptname.
+ *
+ * If SEARCH_EXTS is also defined, will look for each
+ * scriptname{SEARCH_EXTS} whenever scriptname is not found
+ * while searching the PATH.
+ *
+ * Assuming SEARCH_EXTS is C<".foo",".bar",NULL>, PATH search
+ * proceeds as follows:
+ * If DOSISH or VMSISH:
+ * + look for ./scriptname{,.foo,.bar}
+ * + search the PATH for scriptname{,.foo,.bar}
+ *
+ * If !DOSISH:
+ * + look *only* in the PATH for scriptname{,.foo,.bar} (note
+ * this will not look in '.' if it's not in the PATH)
+ */
+ tmpbuf[0] = '\0';
+
+#ifdef VMS
+# ifdef ALWAYS_DEFTYPES
+ len = strlen(scriptname);
+ if (!(len == 1 && *scriptname == '-') && scriptname[len-1] != ':') {
+ int hasdir, idx = 0, deftypes = 1;
+ bool seen_dot = 1;
+
+ hasdir = !dosearch || (strpbrk(scriptname,":[</") != Nullch) ;
+# else
+ if (dosearch) {
+ int hasdir, idx = 0, deftypes = 1;
+ bool seen_dot = 1;
+
+ hasdir = (strpbrk(scriptname,":[</") != Nullch) ;
+# endif
+ /* The first time through, just add SEARCH_EXTS to whatever we
+ * already have, so we can check for default file types. */
+ while (deftypes ||
+ (!hasdir && my_trnlnm("DCL$PATH",tmpbuf,idx++)) )
+ {
+ if (deftypes) {
+ deftypes = 0;
+ *tmpbuf = '\0';
+ }
+ if ((strlen(tmpbuf) + strlen(scriptname)
+ + MAX_EXT_LEN) >= sizeof tmpbuf)
+ continue; /* don't search dir with too-long name */
+ strcat(tmpbuf, scriptname);
+#else /* !VMS */
+
+#ifdef DOSISH
+ if (strEQ(scriptname, "-"))
+ dosearch = 0;
+ if (dosearch) { /* Look in '.' first. */
+ char *cur = scriptname;
+#ifdef SEARCH_EXTS
+ if ((curext = strrchr(scriptname,'.'))) /* possible current ext */
+ while (ext[i])
+ if (strEQ(ext[i++],curext)) {
+ extidx = -1; /* already has an ext */
+ break;
+ }
+ do {
+#endif
+ DEBUG_p(PerlIO_printf(Perl_debug_log,
+ "Looking for %s\n",cur));
+ if (PerlLIO_stat(cur,&PL_statbuf) >= 0
+ && !S_ISDIR(PL_statbuf.st_mode)) {
+ dosearch = 0;
+ scriptname = cur;
+#ifdef SEARCH_EXTS
+ break;
+#endif
+ }
+#ifdef SEARCH_EXTS
+ if (cur == scriptname) {
+ len = strlen(scriptname);
+ if (len+MAX_EXT_LEN+1 >= sizeof(tmpbuf))
+ break;
+ cur = strcpy(tmpbuf, scriptname);
+ }
+ } while (extidx >= 0 && ext[extidx] /* try an extension? */
+ && strcpy(tmpbuf+len, ext[extidx++]));
+#endif
+ }
+#endif
+
+ if (dosearch && !strchr(scriptname, '/')
+#ifdef DOSISH
+ && !strchr(scriptname, '\\')
+#endif
+ && (s = PerlEnv_getenv("PATH"))) {
+ bool seen_dot = 0;
+
+ PL_bufend = s + strlen(s);
+ while (s < PL_bufend) {
+#if defined(atarist) || defined(DOSISH)
+ for (len = 0; *s
+# ifdef atarist
+ && *s != ','
+# endif
+ && *s != ';'; len++, s++) {
+ if (len < sizeof tmpbuf)
+ tmpbuf[len] = *s;
+ }
+ if (len < sizeof tmpbuf)
+ tmpbuf[len] = '\0';
+#else /* ! (atarist || DOSISH) */
+ s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, s, PL_bufend,
+ ':',
+ &len);
+#endif /* ! (atarist || DOSISH) */
+ if (s < PL_bufend)
+ s++;
+ if (len + 1 + strlen(scriptname) + MAX_EXT_LEN >= sizeof tmpbuf)
+ continue; /* don't search dir with too-long name */
+ if (len
+#if defined(atarist) || defined(__MINT__) || defined(DOSISH)
+ && tmpbuf[len - 1] != '/'
+ && tmpbuf[len - 1] != '\\'
+#endif
+ )
+ tmpbuf[len++] = '/';
+ if (len == 2 && tmpbuf[0] == '.')
+ seen_dot = 1;
+ (void)strcpy(tmpbuf + len, scriptname);
+#endif /* !VMS */
+
+#ifdef SEARCH_EXTS
+ len = strlen(tmpbuf);
+ if (extidx > 0) /* reset after previous loop */
+ extidx = 0;
+ do {
+#endif
+ DEBUG_p(PerlIO_printf(Perl_debug_log, "Looking for %s\n",tmpbuf));
+ retval = PerlLIO_stat(tmpbuf,&PL_statbuf);
+ if (S_ISDIR(PL_statbuf.st_mode)) {
+ retval = -1;
+ }
+#ifdef SEARCH_EXTS
+ } while ( retval < 0 /* not there */
+ && extidx>=0 && ext[extidx] /* try an extension? */
+ && strcpy(tmpbuf+len, ext[extidx++])
+ );
+#endif
+ if (retval < 0)
+ continue;
+ if (S_ISREG(PL_statbuf.st_mode)
+ && cando(S_IRUSR,TRUE,&PL_statbuf)
+#ifndef DOSISH
+ && cando(S_IXUSR,TRUE,&PL_statbuf)
+#endif
+ )
+ {
+ xfound = tmpbuf; /* bingo! */
+ break;
+ }
+ if (!xfailed)
+ xfailed = savepv(tmpbuf);
+ }
+#ifndef DOSISH
+ if (!xfound && !seen_dot && !xfailed &&
+ (PerlLIO_stat(scriptname,&PL_statbuf) < 0
+ || S_ISDIR(PL_statbuf.st_mode)))
+#endif
+ seen_dot = 1; /* Disable message. */
+ if (!xfound) {
+ if (flags & 1) { /* do or die? */
+ Perl_croak(aTHX_ "Can't %s %s%s%s",
+ (xfailed ? "execute" : "find"),
+ (xfailed ? xfailed : scriptname),
+ (xfailed ? "" : " on PATH"),
+ (xfailed || seen_dot) ? "" : ", '.' not in PATH");
+ }
+ scriptname = Nullch;
+ }
+ if (xfailed)
+ Safefree(xfailed);
+ scriptname = xfound;
+ }
+ return (scriptname ? savepv(scriptname) : Nullch);
+}
+
+
+#ifdef USE_THREADS
+#ifdef FAKE_THREADS
+/* Very simplistic scheduler for now */
+void
+schedule(void)
+{
+ thr = thr->i.next_run;
+}
+
+void
+Perl_cond_init(pTHX_ perl_cond *cp)
+{
+ *cp = 0;
+}
+
+void
+Perl_cond_signal(pTHX_ perl_cond *cp)
+{
+ perl_os_thread t;
+ perl_cond cond = *cp;
+
+ if (!cond)
+ return;
+ t = cond->thread;
+ /* Insert t in the runnable queue just ahead of us */
+ t->i.next_run = thr->i.next_run;
+ thr->i.next_run->i.prev_run = t;
+ t->i.prev_run = thr;
+ thr->i.next_run = t;
+ thr->i.wait_queue = 0;
+ /* Remove from the wait queue */
+ *cp = cond->next;
+ Safefree(cond);
+}
+
+void
+Perl_cond_broadcast(pTHX_ perl_cond *cp)
+{
+ perl_os_thread t;
+ perl_cond cond, cond_next;
+
+ for (cond = *cp; cond; cond = cond_next) {
+ t = cond->thread;
+ /* Insert t in the runnable queue just ahead of us */
+ t->i.next_run = thr->i.next_run;
+ thr->i.next_run->i.prev_run = t;
+ t->i.prev_run = thr;
+ thr->i.next_run = t;
+ thr->i.wait_queue = 0;
+ /* Remove from the wait queue */
+ cond_next = cond->next;
+ Safefree(cond);
+ }
+ *cp = 0;
+}
+
+void
+Perl_cond_wait(pTHX_ perl_cond *cp)
+{
+ perl_cond cond;
+
+ if (thr->i.next_run == thr)
+ Perl_croak(aTHX_ "panic: perl_cond_wait called by last runnable thread");
+
+ New(666, cond, 1, struct perl_wait_queue);
+ cond->thread = thr;
+ cond->next = *cp;
+ *cp = cond;
+ thr->i.wait_queue = cond;
+ /* Remove ourselves from runnable queue */
+ thr->i.next_run->i.prev_run = thr->i.prev_run;
+ thr->i.prev_run->i.next_run = thr->i.next_run;
+}
+#endif /* FAKE_THREADS */
+
+#ifdef PTHREAD_GETSPECIFIC_INT
+struct perl_thread *
+Perl_getTHR(pTHX)
+{
+ pthread_addr_t t;
+
+ if (pthread_getspecific(PL_thr_key, &t))
+ Perl_croak(aTHX_ "panic: pthread_getspecific");
+ return (struct perl_thread *) t;
+}
+#endif
+
+MAGIC *
+Perl_condpair_magic(pTHX_ SV *sv)
+{
+ MAGIC *mg;
+
+ SvUPGRADE(sv, SVt_PVMG);
+ mg = mg_find(sv, 'm');
+ if (!mg) {
+ condpair_t *cp;
+
+ New(53, cp, 1, condpair_t);
+ MUTEX_INIT(&cp->mutex);
+ COND_INIT(&cp->owner_cond);
+ COND_INIT(&cp->cond);
+ cp->owner = 0;
+ MUTEX_LOCK(&PL_cred_mutex); /* XXX need separate mutex? */
+ mg = mg_find(sv, 'm');
+ if (mg) {
+ /* someone else beat us to initialising it */
+ MUTEX_UNLOCK(&PL_cred_mutex); /* XXX need separate mutex? */
+ MUTEX_DESTROY(&cp->mutex);
+ COND_DESTROY(&cp->owner_cond);
+ COND_DESTROY(&cp->cond);
+ Safefree(cp);
+ }
+ else {
+ sv_magic(sv, Nullsv, 'm', 0, 0);
+ mg = SvMAGIC(sv);
+ mg->mg_ptr = (char *)cp;
+ mg->mg_len = sizeof(cp);
+ MUTEX_UNLOCK(&PL_cred_mutex); /* XXX need separate mutex? */
+ DEBUG_S(WITH_THR(PerlIO_printf(PerlIO_stderr(),
+ "%p: condpair_magic %p\n", thr, sv));)
+ }
+ }
+ return mg;
+}
+
+/*
+ * Make a new perl thread structure using t as a prototype. Some of the
+ * fields for the new thread are copied from the prototype thread, t,
+ * so t should not be running in perl at the time this function is
+ * called. The use by ext/Thread/Thread.xs in core perl (where t is the
+ * thread calling new_struct_thread) clearly satisfies this constraint.
+ */
+struct perl_thread *
+Perl_new_struct_thread(pTHX_ struct perl_thread *t)
+{
+#ifndef PERL_IMPLICIT_CONTEXT
+ struct perl_thread *thr;
+#endif
+ SV *sv;
+ SV **svp;
+ I32 i;
+
+ sv = newSVpvn("", 0);
+ SvGROW(sv, sizeof(struct perl_thread) + 1);
+ SvCUR_set(sv, sizeof(struct perl_thread));
+ thr = (Thread) SvPVX(sv);
+#ifdef DEBUGGING
+ memset(thr, 0xab, sizeof(struct perl_thread));
+ PL_markstack = 0;
+ PL_scopestack = 0;
+ PL_savestack = 0;
+ PL_retstack = 0;
+ PL_dirty = 0;
+ PL_localizing = 0;
+ Zero(&PL_hv_fetch_ent_mh, 1, HE);
+#else
+ Zero(thr, 1, struct perl_thread);
+#endif
+
+ PL_protect = FUNC_NAME_TO_PTR(Perl_default_protect);
+
+ thr->oursv = sv;
+ init_stacks();
+
+ PL_curcop = &PL_compiling;
+ thr->cvcache = newHV();
+ thr->threadsv = newAV();
+ thr->specific = newAV();
+ thr->errsv = newSVpvn("", 0);
+ thr->errhv = newHV();
+ thr->flags = THRf_R_JOINABLE;
+ MUTEX_INIT(&thr->mutex);
+
+ /* top_env needs to be non-zero. It points to an area
+ in which longjmp() stuff is stored, as C callstack
+ info there at least is thread specific this has to
+ be per-thread. Otherwise a 'die' in a thread gives
+ that thread the C stack of last thread to do an eval {}!
+ See comments in scope.h
+ Initialize top entry (as in perl.c for main thread)
+ */
+ PL_start_env.je_prev = NULL;
+ PL_start_env.je_ret = -1;
+ PL_start_env.je_mustcatch = TRUE;
+ PL_top_env = &PL_start_env;
+
+ PL_in_eval = EVAL_NULL; /* ~(EVAL_INEVAL|EVAL_WARNONLY|EVAL_KEEPERR) */
+ PL_restartop = 0;
+
+ PL_statname = NEWSV(66,0);
+ PL_maxscream = -1;
+ PL_regcompp = FUNC_NAME_TO_PTR(Perl_pregcomp);
+ PL_regexecp = FUNC_NAME_TO_PTR(Perl_regexec_flags);
+ PL_regindent = 0;
+ PL_reginterp_cnt = 0;
+ PL_lastscream = Nullsv;
+ PL_screamfirst = 0;
+ PL_screamnext = 0;
+ PL_reg_start_tmp = 0;
+ PL_reg_start_tmpl = 0;
+
+ /* parent thread's data needs to be locked while we make copy */
+ MUTEX_LOCK(&t->mutex);
+
+ PL_protect = t->Tprotect;
+
+ PL_curcop = t->Tcurcop; /* XXX As good a guess as any? */
+ PL_defstash = t->Tdefstash; /* XXX maybe these should */
+ PL_curstash = t->Tcurstash; /* always be set to main? */
+
+ PL_tainted = t->Ttainted;
+ PL_curpm = t->Tcurpm; /* XXX No PMOP ref count */
+ PL_nrs = newSVsv(t->Tnrs);
+ PL_rs = SvREFCNT_inc(PL_nrs);
+ PL_last_in_gv = Nullgv;
+ PL_ofslen = t->Tofslen;
+ PL_ofs = savepvn(t->Tofs, PL_ofslen);
+ PL_defoutgv = (GV*)SvREFCNT_inc(t->Tdefoutgv);
+ PL_chopset = t->Tchopset;
+ PL_formtarget = newSVsv(t->Tformtarget);
+ PL_bodytarget = newSVsv(t->Tbodytarget);
+ PL_toptarget = newSVsv(t->Ttoptarget);
+
+ /* Initialise all per-thread SVs that the template thread used */
+ svp = AvARRAY(t->threadsv);
+ for (i = 0; i <= AvFILLp(t->threadsv); i++, svp++) {
+ if (*svp && *svp != &PL_sv_undef) {
+ SV *sv = newSVsv(*svp);
+ av_store(thr->threadsv, i, sv);
+ sv_magic(sv, 0, 0, &PL_threadsv_names[i], 1);
+ DEBUG_S(PerlIO_printf(PerlIO_stderr(),
+ "new_struct_thread: copied threadsv %d %p->%p\n",i, t, thr));
+ }
+ }
+ thr->threadsvp = AvARRAY(thr->threadsv);
+
+ MUTEX_LOCK(&PL_threads_mutex);
+ PL_nthreads++;
+ thr->tid = ++PL_threadnum;
+ thr->next = t->next;
+ thr->prev = t;
+ t->next = thr;
+ thr->next->prev = thr;
+ MUTEX_UNLOCK(&PL_threads_mutex);
+
+ /* done copying parent's state */
+ MUTEX_UNLOCK(&t->mutex);
+
+#ifdef HAVE_THREAD_INTERN
+ Perl_init_thread_intern(thr);
+#endif /* HAVE_THREAD_INTERN */
+ return thr;
+}
+#endif /* USE_THREADS */
#ifdef HUGE_VAL
/*
* Needed for SunOS with Sun's 'acc' for example.
*/
double
-Perl_huge()
+Perl_huge(void)
{
return HUGE_VAL;
}
#endif
+
+#ifdef PERL_GLOBAL_STRUCT
+struct perl_vars *
+Perl_GetVars(pTHX)
+{
+ return &PL_Vars;
+}
+#endif
+
+char **
+Perl_get_op_names(pTHX)
+{
+ return PL_op_name;
+}
+
+char **
+Perl_get_op_descs(pTHX)
+{
+ return PL_op_desc;
+}
+
+char *
+Perl_get_no_modify(pTHX)
+{
+ return (char*)PL_no_modify;
+}
+
+U32 *
+Perl_get_opargs(pTHX)
+{
+ return PL_opargs;
+}
+
+PPADDR_t*
+Perl_get_ppaddr(pTHX)
+{
+ return &PL_ppaddr;
+}
+
+#ifndef HAS_GETENV_LEN
+char *
+Perl_getenv_len(pTHX_ char *env_elem, unsigned long *len)
+{
+ char *env_trans = PerlEnv_getenv(env_elem);
+ if (env_trans)
+ *len = strlen(env_trans);
+ return env_trans;
+}
+#endif
+
+
+MGVTBL*
+Perl_get_vtbl(pTHX_ int vtbl_id)
+{
+ MGVTBL* result = Null(MGVTBL*);
+
+ switch(vtbl_id) {
+ case want_vtbl_sv:
+ result = &PL_vtbl_sv;
+ break;
+ case want_vtbl_env:
+ result = &PL_vtbl_env;
+ break;
+ case want_vtbl_envelem:
+ result = &PL_vtbl_envelem;
+ break;
+ case want_vtbl_sig:
+ result = &PL_vtbl_sig;
+ break;
+ case want_vtbl_sigelem:
+ result = &PL_vtbl_sigelem;
+ break;
+ case want_vtbl_pack:
+ result = &PL_vtbl_pack;
+ break;
+ case want_vtbl_packelem:
+ result = &PL_vtbl_packelem;
+ break;
+ case want_vtbl_dbline:
+ result = &PL_vtbl_dbline;
+ break;
+ case want_vtbl_isa:
+ result = &PL_vtbl_isa;
+ break;
+ case want_vtbl_isaelem:
+ result = &PL_vtbl_isaelem;
+ break;
+ case want_vtbl_arylen:
+ result = &PL_vtbl_arylen;
+ break;
+ case want_vtbl_glob:
+ result = &PL_vtbl_glob;
+ break;
+ case want_vtbl_mglob:
+ result = &PL_vtbl_mglob;
+ break;
+ case want_vtbl_nkeys:
+ result = &PL_vtbl_nkeys;
+ break;
+ case want_vtbl_taint:
+ result = &PL_vtbl_taint;
+ break;
+ case want_vtbl_substr:
+ result = &PL_vtbl_substr;
+ break;
+ case want_vtbl_vec:
+ result = &PL_vtbl_vec;
+ break;
+ case want_vtbl_pos:
+ result = &PL_vtbl_pos;
+ break;
+ case want_vtbl_bm:
+ result = &PL_vtbl_bm;
+ break;
+ case want_vtbl_fm:
+ result = &PL_vtbl_fm;
+ break;
+ case want_vtbl_uvar:
+ result = &PL_vtbl_uvar;
+ break;
+#ifdef USE_THREADS
+ case want_vtbl_mutex:
+ result = &PL_vtbl_mutex;
+ break;
+#endif
+ case want_vtbl_defelem:
+ result = &PL_vtbl_defelem;
+ break;
+ case want_vtbl_regexp:
+ result = &PL_vtbl_regexp;
+ break;
+ case want_vtbl_regdata:
+ result = &PL_vtbl_regdata;
+ break;
+ case want_vtbl_regdatum:
+ result = &PL_vtbl_regdatum;
+ break;
+#ifdef USE_LOCALE_COLLATE
+ case want_vtbl_collxfrm:
+ result = &PL_vtbl_collxfrm;
+ break;
+#endif
+ case want_vtbl_amagic:
+ result = &PL_vtbl_amagic;
+ break;
+ case want_vtbl_amagicelem:
+ result = &PL_vtbl_amagicelem;
+ break;
+ case want_vtbl_backref:
+ result = &PL_vtbl_backref;
+ break;
+ }
+ return result;
+}
+
+I32
+Perl_my_fflush_all(pTHX)
+{
+#ifdef FFLUSH_NULL
+ return PerlIO_flush(NULL);
+#else
+ long open_max = -1;
+# if defined(FFLUSH_ALL) && defined(HAS_STDIO_STREAM_ARRAY)
+# ifdef PERL_FFLUSH_ALL_FOPEN_MAX
+ open_max = PERL_FFLUSH_ALL_FOPEN_MAX;
+# else
+# if defined(HAS_SYSCONF) && defined(_SC_OPEN_MAX)
+ open_max = sysconf(_SC_OPEN_MAX);
+# else
+# ifdef FOPEN_MAX
+ open_max = FOPEN_MAX;
+# else
+# ifdef OPEN_MAX
+ open_max = OPEN_MAX;
+# else
+# ifdef _NFILE
+ open_max = _NFILE;
+# endif
+# endif
+# endif
+# endif
+# endif
+ if (open_max > 0) {
+ long i;
+ for (i = 0; i < open_max; i++)
+ if (STDIO_STREAM_ARRAY[i]._file >= 0 &&
+ STDIO_STREAM_ARRAY[i]._file < open_max &&
+ STDIO_STREAM_ARRAY[i]._flag)
+ PerlIO_flush(&STDIO_STREAM_ARRAY[i]);
+ return 0;
+ }
+# endif
+ SETERRNO(EBADF,RMS$_IFI);
+ return EOF;
+#endif
+}
+
+double
+Perl_my_atof(const char* s) {
+#ifdef USE_LOCALE_NUMERIC
+ if ((PL_hints & HINT_LOCALE) && PL_numeric_local) {
+ double x, y;
+
+ x = atof(s);
+ SET_NUMERIC_STANDARD();
+ y = atof(s);
+ SET_NUMERIC_LOCAL();
+ if ((y < 0.0 && y < x) || (y > 0.0 && y > x))
+ return y;
+ return x;
+ } else
+ return atof(s);
+#else
+ return atof(s);
+#endif
+}