/* util.c
*
- * Copyright (c) 1991-1994, Larry Wall
+ * Copyright (c) 1991-1997, 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 <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>
static void xstat _((void));
#endif
+#ifdef USE_THREADS
+static U32 threadnum = 0;
+#endif /* USE_THREADS */
+
#ifndef MYMALLOC
/* paranoid version of malloc */
*/
Malloc_t
-safemalloc(size)
-MEM_SIZE size;
+safemalloc(MEM_SIZE size)
{
Malloc_t ptr;
#ifdef HAS_64K_LIMIT
else {
PerlIO_puts(PerlIO_stderr(),no_mem) FLUSH;
my_exit(1);
+ return Nullch;
}
/*NOTREACHED*/
}
/* paranoid version of realloc */
Malloc_t
-saferealloc(where,size)
-Malloc_t where;
-MEM_SIZE size;
+saferealloc(Malloc_t where,MEM_SIZE size)
{
Malloc_t ptr;
#if !defined(STANDARD_C) && !defined(HAS_REALLOC_PROTOTYPE)
#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;
+ my_exit(1);
+ }
#endif /* HAS_64K_LIMIT */
if (!where)
croak("Null realloc");
else {
PerlIO_puts(PerlIO_stderr(),no_mem) FLUSH;
my_exit(1);
+ return Nullch;
}
/*NOTREACHED*/
}
/* safe version of free */
-void
-safefree(where)
-Malloc_t where;
+Free_t
+safefree(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,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,an++));
#endif
if (where) {
/*SUPPRESS 701*/
/* safe version of calloc */
Malloc_t
-safecalloc(count, size)
-MEM_SIZE count;
-MEM_SIZE size;
+safecalloc(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;
+ my_exit(1);
+ }
#endif /* HAS_64K_LIMIT */
#ifdef DEBUGGING
if ((long)size < 0 || (long)count < 0)
croak("panic: calloc");
#endif
+ size *= count;
+ ptr = 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,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,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 {
PerlIO_puts(PerlIO_stderr(),no_mem) FLUSH;
my_exit(1);
+ return Nullch;
}
/*NOTREACHED*/
}
#define ALIGN sizeof(long)
Malloc_t
-safexmalloc(x,size)
-I32 x;
-MEM_SIZE size;
+safexmalloc(I32 x, MEM_SIZE size)
{
register Malloc_t where;
}
Malloc_t
-safexrealloc(where,size)
-Malloc_t where;
-MEM_SIZE size;
+safexrealloc(Malloc_t where, MEM_SIZE size)
{
register Malloc_t new = saferealloc(where - ALIGN, size + ALIGN);
return new + ALIGN;
}
void
-safexfree(where)
-Malloc_t where;
+safexfree(Malloc_t where)
{
I32 x;
}
Malloc_t
-safexcalloc(x,count,size)
-I32 x;
-MEM_SIZE count;
-MEM_SIZE size;
+safexcalloc(I32 x,MEM_SIZE count, MEM_SIZE size)
{
register Malloc_t where;
}
static void
-xstat()
+xstat(void)
{
register I32 i;
/* 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;
+delimcpy(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;
+instr(register char *big, register char *little)
{
register char *s, *x;
register I32 first;
/* same as instr but allow embedded nulls */
char *
-ninstr(big, bigend, little, lend)
-register char *big;
-register char *bigend;
-char *little;
-char *lend;
+ninstr(register char *big, register char *bigend, char *little, char *lend)
{
register char *s, *x;
register I32 first = *little;
/* reverse of the above--find last substring */
char *
-rninstr(big, bigend, little, lend)
-register char *big;
-char *bigend;
-char *little;
-char *lend;
+rninstr(register char *big, char *bigend, char *little, char *lend)
{
register char *bigbeg;
register char *s, *x;
return Nullch;
}
-#ifdef LC_CTYPE
-
/*
* Set up for a new ctype locale.
*/
void
-perl_new_ctype(newctype)
- char *newctype;
+perl_new_ctype(char *newctype)
{
+#ifdef USE_LOCALE_CTYPE
+
int i;
for (i = 0; i < 256; i++) {
else
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(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 */
}
return;
}
collation_name = savepv(newcoll);
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. */
collxfrm_base = (fa > mult) ? (fa - mult) : 0;
collxfrm_mult = mult;
}
-#endif /* HAS_STRXFRM */
}
-}
-#endif /* LC_COLLATE */
-
-#ifdef LC_NUMERIC
+#endif /* USE_LOCALE_COLLATE */
+}
/*
* Set up for a new numeric locale.
*/
void
-perl_new_numeric(newnum)
- char *newnum;
+perl_new_numeric(char *newnum)
{
+#ifdef USE_LOCALE_NUMERIC
+
if (! newnum) {
if (numeric_name) {
Safefree(numeric_name);
numeric_standard = (strEQ(newnum, "C") || strEQ(newnum, "POSIX"));
numeric_local = TRUE;
}
+
+#endif /* USE_LOCALE_NUMERIC */
}
void
-perl_numeric_standard()
+perl_set_numeric_standard(void)
{
+#ifdef USE_LOCALE_NUMERIC
+
if (! numeric_standard) {
setlocale(LC_NUMERIC, "C");
numeric_standard = TRUE;
numeric_local = FALSE;
}
+
+#endif /* USE_LOCALE_NUMERIC */
}
void
-perl_numeric_local()
+perl_set_numeric_local(void)
{
+#ifdef USE_LOCALE_NUMERIC
+
if (! numeric_local) {
setlocale(LC_NUMERIC, numeric_name);
numeric_standard = FALSE;
numeric_local = TRUE;
}
+
+#endif /* USE_LOCALE_NUMERIC */
}
-#endif /* LC_NUMERIC */
-/* Initialize locale awareness */
+/*
+ * Initialize locale awareness.
+ */
int
-perl_init_i18nl10n(printwarn)
- int printwarn;
+perl_init_i18nl10n(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 */
+ char *lc_all = getenv("LC_ALL");
+ char *lang = 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 (lang) {
+ if (setlocale(LC_ALL, ""))
+ done = TRUE;
+ else
+ setlocale_failure = TRUE;
+ }
+ if (!setlocale_failure)
+#endif /* LC_ALL */
+ {
+#ifdef USE_LOCALE_CTYPE
+ if (! (curctype = setlocale(LC_CTYPE,
+ (!done && (lang || getenv("LC_CTYPE")))
+ ? "" : Nullch)))
+ setlocale_failure = TRUE;
+#endif /* USE_LOCALE_CTYPE */
+#ifdef USE_LOCALE_COLLATE
+ if (! (curcoll = setlocale(LC_COLLATE,
+ (!done && (lang || getenv("LC_COLLATE")))
+ ? "" : Nullch)))
+ setlocale_failure = TRUE;
+#endif /* USE_LOCALE_COLLATE */
+#ifdef USE_LOCALE_NUMERIC
+ if (! (curnum = setlocale(LC_NUMERIC,
+ (!done && (lang || getenv("LC_NUMERIC")))
+ ? "" : Nullch)))
+ setlocale_failure = TRUE;
+#endif /* USE_LOCALE_NUMERIC */
+ }
+
+#else /* !LOCALE_ENVIRON_REQUIRED */
+
+#ifdef LC_ALL
+
if (! setlocale(LC_ALL, ""))
setlocale_failure = TRUE;
-#else
- subloc = "";
-#endif /* LC_ALL */
+ else {
+#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
- if (! (curctype = setlocale(LC_CTYPE, subloc)))
+#else /* !LC_ALL */
+
+#ifdef USE_LOCALE_CTYPE
+ if (! (curctype = setlocale(LC_CTYPE, "")))
setlocale_failure = TRUE;
-#endif /* LC_CTYPE */
-#ifdef LC_COLLATE
- if (! (curcoll = setlocale(LC_COLLATE, subloc)))
+#endif /* USE_LOCALE_CTYPE */
+#ifdef USE_LOCALE_COLLATE
+ if (! (curcoll = setlocale(LC_COLLATE, "")))
setlocale_failure = TRUE;
-#endif /* LC_COLLATE */
-#ifdef LC_NUMERIC
- if (! (curnum = setlocale(LC_NUMERIC, subloc)))
+#endif /* USE_LOCALE_COLLATE */
+#ifdef USE_LOCALE_NUMERIC
+ if (! (curnum = setlocale(LC_NUMERIC, "")))
setlocale_failure = TRUE;
-#endif /* LC_NUMERIC */
+#endif /* USE_LOCALE_NUMERIC */
+
+#endif /* LC_ALL */
+
+#endif /* !LOCALE_ENVIRON_REQUIRED */
+
+ if (setlocale_failure) {
+ char *p;
+ bool locwarn = (printwarn > 1 ||
+ printwarn &&
+ (!(p = getenv("PERL_BADLANG")) || atoi(p)));
- if (setlocale_failure && (lc_all || lang)) {
- char *perl_badlang;
+ 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");
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
+#ifdef USE_LOCALE_CTYPE
perl_new_ctype(curctype);
-#endif /* LC_NUMERIC */
+#endif /* USE_LOCALE_CTYPE */
-#ifdef LC_COLLATE
+#ifdef USE_LOCALE_COLLATE
perl_new_collate(curcoll);
-#endif /* LC_NUMERIC */
+#endif /* USE_LOCALE_COLLATE */
-#ifdef LC_NUMERIC
+#ifdef USE_LOCALE_NUMERIC
perl_new_numeric(curnum);
-#endif /* LC_NUMERIC */
+#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(int printwarn)
{
- perl_init_i18nl10n(printwarn);
+ return perl_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;
+mem_collxfrm(const char *s, STRLEN len, STRLEN *xlen)
{
char *xbuf;
STRLEN xalloc, xin, xout;
return NULL;
}
-#endif /* HAS_STRXFRM */
+#endif /* USE_LOCALE_COLLATE */
void
-fbm_compile(sv)
-SV *sv;
+fbm_compile(SV *sv)
{
register unsigned char *s;
register unsigned char *table;
I32 rarest = 0;
U32 frequency = 256;
- if (len > 255)
+ sv_upgrade(sv, SVt_PVBM);
+ if (len > 255 || len == 0) /* TAIL might be on on a zero-length string. */
return; /* can't have offsets that big */
Sv_Grow(sv,len+258);
table = (unsigned char*)(SvPVX(sv) + len + 1);
table[*s] = i;
s--,i++;
}
- sv_upgrade(sv, SVt_PVBM);
sv_magic(sv, Nullsv, 'B', Nullch, 0); /* deep magic */
SvVALID_on(sv);
}
char *
-fbm_instr(big, bigend, littlestr)
-unsigned char *big;
-register unsigned char *bigend;
-SV *littlestr;
+fbm_instr(unsigned char *big, register unsigned char *bigend, SV *littlestr)
{
register unsigned char *s;
register I32 tmp;
if (SvTYPE(littlestr) != SVt_PVBM || !SvVALID(littlestr)) {
STRLEN len;
char *l = SvPV(littlestr,len);
- if (!len)
+ if (!len) {
+ if (SvTAIL(littlestr)) {
+ if (bigend > big && bigend[-1] == '\n')
+ return (char *)(bigend - 1);
+ else
+ return (char *) bigend;
+ }
return (char*)big;
+ }
return ninstr((char*)big,(char*)bigend, l, l + len);
}
return Nullch;
little = (unsigned char*)SvPVX(littlestr);
s = bigend - littlelen;
- if (*s == *little && memcmp((char*)s,(char*)little,littlelen)==0)
+ if (*s == *little && memEQ((char*)s,(char*)little,littlelen))
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 == *little && memEQ((char*)s,(char*)little,littlelen))
return (char*)s;
}
return Nullch;
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;
return Nullch;
}
+ if (SvTAIL(littlestr) /* automatically multiline */
+ && olds + 1 != bigend
+ && olds[1] != '\n')
+ goto differ;
return (char *)s;
}
}
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 do not take into account SvTAIL, so it may give wrong
+ positives if _ALL flag is set.
+ */
+
char *
-screaminstr(bigstr, littlestr)
-SV *bigstr;
-SV *littlestr;
+screaminstr(SV *bigstr, SV *littlestr, I32 start_shift, I32 end_shift, I32 *old_posp, I32 last)
{
register unsigned char *s, *x;
register unsigned char *big;
register I32 previous;
register I32 first;
register unsigned char *little;
- register unsigned char *bigend;
+ register I32 stop_pos;
register unsigned char *littleend;
+ I32 found = 0;
- if ((pos = screamfirst[BmRARE(littlestr)]) < 0)
+ if (*old_posp == -1
+ ? (pos = screamfirst[BmRARE(littlestr)]) < 0
+ : (((pos = *old_posp), pos += screamnext[pos]) == 0))
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) {
+ /* The value of pos we can stop at: */
+ stop_pos = SvCUR(bigstr) - end_shift - (SvCUR(littlestr) - 1 - previous);
+ if (previous + start_shift > stop_pos) return Nullch;
+ while (pos < previous + start_shift) {
if (!(pos += screamnext[pos]))
return Nullch;
}
#ifdef POINTERRIGOR
do {
+ if (pos >= stop_pos) return Nullch;
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);
+ if (s == littleend) {
+ *old_posp = pos;
+ if (!last) return (char *)(big+pos-previous);
+ found = 1;
+ }
} while ( pos += screamnext[pos] );
+ return (last && found) ? (char *)(big+(*old_posp)-previous) : Nullch;
#else /* !POINTERRIGOR */
big -= previous;
do {
+ if (pos >= stop_pos) return Nullch;
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);
+ if (s == littleend) {
+ *old_posp = pos;
+ if (!last) return (char *)(big+pos);
+ found = 1;
+ }
} while ( pos += screamnext[pos] );
+ return (last && found) ? (char *)(big+(*old_posp)) : Nullch;
#endif /* POINTERRIGOR */
- return Nullch;
}
I32
-ibcmp(s1, s2, len)
-char *s1, *s2;
-register I32 len;
+ibcmp(char *s1, char *s2, register I32 len)
{
register U8 *a = (U8 *)s1;
register U8 *b = (U8 *)s2;
}
I32
-ibcmp_locale(s1, s2, len)
-char *s1, *s2;
-register I32 len;
+ibcmp_locale(char *s1, char *s2, register I32 len)
{
register U8 *a = (U8 *)s1;
register U8 *b = (U8 *)s2;
/* copy a string to a safe spot */
char *
-savepv(sv)
-char *sv;
+savepv(char *sv)
{
register char *newaddr;
/* same thing but with a known length */
char *
-savepvn(sv, len)
-char *sv;
-register I32 len;
+savepvn(char *sv, register I32 len)
{
register char *newaddr;
return newaddr;
}
-#if !defined(I_STDARG) && !defined(I_VARARGS)
+/* the SV for form() and mess() is not kept in an arena */
-/*
- * Fallback on the old hackers way of doing varargs
- */
+static SV *
+mess_alloc(void)
+{
+ SV *sv;
+ XPVMG *any;
-/*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 */
+ return sv;
+}
+
+#ifdef I_STDARG
+char *
+form(const char* pat, ...)
+#else
+/*VARARGS0*/
char *
-mess(pat,a1,a2,a3,a4)
-char *pat;
-long a1, a2, a3, a4;
+form(pat, va_alist)
+ const char *pat;
+ va_dcl
+#endif
{
- 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);
- }
+ va_list args;
+#ifdef I_STDARG
+ va_start(args, pat);
+#else
+ va_start(args);
+#endif
+ if (!mess_sv)
+ mess_sv = mess_alloc();
+ sv_vsetpvfn(mess_sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
+ va_end(args);
+ return SvPVX(mess_sv);
+}
- if (s[-1] != '\n') {
+char *
+mess(const char *pat, va_list *args)
+{
+ SV *sv;
+ static char dgd[] = " during global destruction.\n";
+
+ if (!mess_sv)
+ mess_sv = mess_alloc();
+ sv = mess_sv;
+ sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*));
+ if (!SvCUR(sv) || *(SvEND(sv) - 1) != '\n') {
+ dTHR;
if (dirty)
- strcpy(s, " during global destruction.\n");
+ sv_catpv(sv, dgd);
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);
+ if (curcop->cop_line)
+ sv_catpvf(sv, " at %_ line %ld",
+ GvSV(curcop->cop_filegv), (long)curcop->cop_line);
+ if (GvIO(last_in_gv) && IoLINES(GvIOp(last_in_gv))) {
+ bool line_mode = (RsSIMPLE(rs) &&
+ SvLEN(rs) == 1 && *SvPVX(rs) == '\n');
+ sv_catpvf(sv, ", <%s> %s %ld",
+ last_in_gv == argvgv ? "" : GvNAME(last_in_gv),
+ line_mode ? "line" : "chunk",
+ (long)IoLINES(GvIOp(last_in_gv)));
}
- (void)strcpy(s,".\n");
- s += 2;
+ sv_catpv(sv, ".\n");
}
- 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;
+ return SvPVX(sv);
}
-/*VARARGS1*/
-void croak(pat,a1,a2,a3,a4)
-char *pat;
-long a1, a2, a3, a4;
+#ifdef I_STDARG
+OP *
+die(const char* pat, ...)
+#else
+/*VARARGS0*/
+OP *
+die(pat, va_alist)
+ const char *pat;
+ va_dcl
+#endif
{
- char *tmps;
+ dTHR;
+ va_list args;
char *message;
+ int was_in_eval = in_eval;
HV *stash;
GV *gv;
CV *cv;
- message = mess(pat,a1,a2,a3,a4);
+#ifdef USE_THREADS
+ DEBUG_L(PerlIO_printf(PerlIO_stderr(),
+ "%p: die: curstack = %p, mainstack = %p\n",
+ thr, curstack, mainstack));
+#endif /* USE_THREADS */
+ /* We have to switch back to mainstack or die_where may try to pop
+ * the eval block from the wrong stack if die is being called from a
+ * signal handler. - dkindred@cs.cmu.edu */
+ if (curstack != mainstack) {
+ dSP;
+ SWITCHSTACK(curstack, mainstack);
+ }
+
+#ifdef I_STDARG
+ va_start(args, pat);
+#else
+ va_start(args);
+#endif
+ message = mess(pat, &args);
+ va_end(args);
+
+#ifdef USE_THREADS
+ DEBUG_L(PerlIO_printf(PerlIO_stderr(),
+ "%p: die: message = %s\ndiehook = %p\n",
+ thr, message, diehook));
+#endif /* USE_THREADS */
if (diehook) {
+ /* sv_2cv might call croak() */
SV *olddiehook = diehook;
- diehook = Nullsv; /* sv_2cv might call croak() */
+ ENTER;
+ SAVESPTR(diehook);
+ 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;
- PUSHMARK(sp);
- EXTEND(sp, 1);
- PUSHs(sv_2mortal(newSVpv(message,0)));
- 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;
- }
- (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)));
-#endif
-}
-
-/*VARARGS1*/
-void warn(pat,a1,a2,a3,a4)
-char *pat;
-long a1, a2, a3, a4;
-{
- char *message;
- SV *sv;
- HV *stash;
- GV *gv;
- CV *cv;
+ ENTER;
+ msg = newSVpv(message, 0);
+ SvREADONLY_on(msg);
+ SAVEFREESV(msg);
- 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)) {
- dSP;
-
PUSHMARK(sp);
- EXTEND(sp, 1);
- PUSHs(sv_2mortal(newSVpv(message,0)));
+ XPUSHs(msg);
PUTBACK;
perl_call_sv((SV*)cv, G_DISCARD);
- return;
- }
- }
- 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();
-#endif
-#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;
+ LEAVE;
}
- 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;
+ restartop = die_where(message);
+#ifdef USE_THREADS
+ DEBUG_L(PerlIO_printf(PerlIO_stderr(),
+ "%p: die: restartop = %p, was_in_eval = %d, top_env = %p\n",
+ thr, restartop, was_in_eval, top_env));
+#endif /* USE_THREADS */
+ if ((!restartop && was_in_eval) || top_env->je_prev)
+ JMPENV_JUMP(3);
+ return restartop;
}
#ifdef I_STDARG
void
-croak(char* pat, ...)
+croak(const char* pat, ...)
#else
/*VARARGS0*/
void
va_dcl
#endif
{
+ dTHR;
va_list args;
char *message;
HV *stash;
#endif
message = mess(pat, &args);
va_end(args);
+#ifdef USE_THREADS
+ DEBUG_L(PerlIO_printf(PerlIO_stderr(), "croak: 0x%lx %s", (unsigned long) thr, message));
+#endif /* USE_THREADS */
if (diehook) {
+ /* sv_2cv might call croak() */
SV *olddiehook = diehook;
- diehook = Nullsv; /* sv_2cv might call croak() */
+ ENTER;
+ SAVESPTR(diehook);
+ 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;
+ msg = newSVpv(message, 0);
+ SvREADONLY_on(msg);
+ SAVEFREESV(msg);
PUSHMARK(sp);
- EXTEND(sp, 1);
- PUSHs(sv_2mortal(newSVpv(message,0)));
+ XPUSHs(msg);
PUTBACK;
perl_call_sv((SV*)cv, G_DISCARD);
+
+ LEAVE;
}
}
if (in_eval) {
restartop = die_where(message);
- Siglongjmp(top_env, 3);
+ JMPENV_JUMP(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:(statusvalue?statusvalue:44)));
-#else
- my_exit((U32)((errno&255)?errno:((statusvalue&255)?statusvalue:255)));
-#endif
+ my_failure_exit();
}
void
#ifdef I_STDARG
-warn(char* pat,...)
+warn(const char* pat,...)
#else
/*VARARGS0*/
warn(pat,va_alist)
- char *pat;
+ const char *pat;
va_dcl
#endif
{
va_end(args);
if (warnhook) {
+ /* sv_2cv might call warn() */
+ dTHR;
SV *oldwarnhook = warnhook;
- warnhook = Nullsv; /* sv_2cv might end up calling warn() */
+ ENTER;
+ SAVESPTR(warnhook);
+ warnhook = Nullsv;
cv = sv_2cv(oldwarnhook, &stash, &gv, 0);
- warnhook = oldwarnhook;
- if (cv && !CvDEPTH(cv)) {
+ LEAVE;
+ if (cv && !CvDEPTH(cv) && (CvROOT(cv) || CvXSUB(cv))) {
dSP;
+ SV *msg;
+
+ ENTER;
+ msg = newSVpv(message, 0);
+ SvREADONLY_on(msg);
+ SAVEFREESV(msg);
PUSHMARK(sp);
- EXTEND(sp, 1);
- PUSHs(sv_2mortal(newSVpv(message,0)));
+ XPUSHs(msg);
PUTBACK;
perl_call_sv((SV*)cv, G_DISCARD);
+
+ LEAVE;
return;
}
}
#endif
(void)PerlIO_flush(PerlIO_stderr());
}
-#endif /* !defined(I_STDARG) && !defined(I_VARARGS) */
#ifndef VMS /* VMS' my_setenv() is in VMS.c */
+#ifndef WIN32
void
-my_setenv(nam,val)
-char *nam, *val;
+my_setenv(char *nam, char *val)
{
register I32 i=setenv_getix(nam); /* where does it go? */
environ = tmpenv; /* tell exec where it is now */
}
if (!val) {
+ Safefree(environ[i]);
while (environ[i]) {
environ[i] = environ[i+1];
i++;
#endif /* MSDOS */
}
+#else /* if WIN32 */
+
+void
+my_setenv(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);
+ New(904, envstr, namlen + vallen + 3, char);
+ (void)sprintf(envstr,"%s=%s",nam,val);
+ (void)putenv(envstr);
+ if (oldstr)
+ Safefree(oldstr);
+#ifdef _MSC_VER
+ Safefree(envstr); /* MSVCRT leaks without this */
+#endif
+
+#else /* !USE_WIN32_RTL_ENV */
+
+ /* The sane way to deal with the environment.
+ * Has these advantages over putenv() & co.:
+ * * enables us to store a truly empty value in the
+ * environment (like in UNIX).
+ * * we don't have to deal with RTL globals, bugs and leaks.
+ * * Much faster.
+ * Why you may want to enable USE_WIN32_RTL_ENV:
+ * * environ[] and RTL functions will not reflect changes,
+ * which might be an issue if extensions want to access
+ * the env. via RTL. This cuts both ways, since RTL will
+ * not see changes made by extensions that call the Win32
+ * functions directly, either.
+ * GSAR 97-06-07
+ */
+ SetEnvironmentVariable(nam,val);
+
+#endif
+}
+
+#endif /* WIN32 */
+
I32
-setenv_getix(nam)
-char *nam;
+setenv_getix(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
#if !defined(HAS_BCOPY) || !defined(HAS_SAFE_BCOPY)
char *
-my_bcopy(from,to,len)
-register char *from;
-register char *to;
-register I32 len;
+my_bcopy(register char *from,register char *to,register I32 len)
{
char *retval = to;
}
#endif
+#ifndef HAS_MEMSET
+void *
+my_memset(loc,ch,len)
+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)
}
#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;
+char *s1;
+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
int
#endif
vsprintf(dest, pat, args)
-char *dest, *pat, *args;
+char *dest;
+const char *pat;
+char *args;
{
FILE fakebuf;
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)
PerlIO *
-my_popen(cmd,mode)
-char *cmd;
-char *mode;
+my_popen(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,"-");
#ifdef OS2
if (doexec) {
#endif
if (pipe(p) < 0)
return Nullfp;
- this = (*mode == 'w');
- that = !this;
+ This = (*mode == 'w');
+ that = !This;
if (doexec && tainting) {
taint_env();
taint_proper("Insecure %s%s", "EXEC");
}
while ((pid = (doexec?vfork():fork())) < 0) {
if (errno != EAGAIN) {
- close(p[this]);
+ close(p[This]);
if (!doexec)
croak("Can't fork");
return Nullfp;
GV* tmpgv;
#define THIS that
-#define THAT this
+#define THAT This
close(p[THAT]);
if (p[THIS] != (*mode == 'r')) {
dup2(p[THIS], *mode == 'r');
}
/*SUPPRESS 560*/
if (tmpgv = gv_fetchpv("$",TRUE, SVt_PV))
- sv_setiv(GvSV(tmpgv),(I32)getpid());
+ sv_setiv(GvSV(tmpgv), (IV)getpid());
forkprocess = 0;
hv_clear(pidstatus); /* we have no children */
return Nullfp;
}
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];
+ if (p[that] < p[This]) {
+ dup2(p[This], p[that]);
+ close(p[This]);
+ p[This] = p[that];
}
- sv = *av_fetch(fdpid,p[this],TRUE);
+ sv = *av_fetch(fdpid,p[This],TRUE);
(void)SvUPGRADE(sv,SVt_IV);
SvIVX(sv) = pid;
forkprocess = pid;
- return PerlIO_fdopen(p[this], mode);
+ return PerlIO_fdopen(p[This], mode);
}
#else
#if defined(atarist) || defined(DJGPP)
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 */
+ /* good enough for low fd's... */
+ while ((fd = dup(oldfd)) != newfd && fd >= 0) {
+ if (fdx >= DUP2_MAX_FDS) {
+ close(fd);
+ fd = -1;
+ break;
+ }
fdtmp[fdx++] = fd;
+ }
while (fdx > 0)
close(fdtmp[--fdx]);
return fd;
#ifdef HAS_SIGACTION
Sighandler_t
-rsignal(signo, handler)
-int signo;
-Sighandler_t handler;
+rsignal(int signo, Sighandler_t handler)
{
struct sigaction act, oact;
act.sa_flags |= SA_RESTART; /* SVR4, 4.3+BSD */
#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;
+rsignal_state(int signo)
{
struct sigaction oact;
}
int
-rsignal_save(signo, handler, save)
-int signo;
-Sighandler_t handler;
-Sigsave_t *save;
+rsignal_save(int signo, Sighandler_t handler, Sigsave_t *save)
{
struct sigaction act;
}
int
-rsignal_restore(signo, save)
-int signo;
-Sigsave_t *save;
+rsignal_restore(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;
+rsignal(int signo, Sighandler_t handler)
{
return signal(signo, handler);
}
static
Signal_t
-sig_trap(signo)
-int signo;
+sig_trap(int signo)
{
sig_trapped++;
}
Sighandler_t
-rsignal_state(signo)
-int signo;
+rsignal_state(int signo)
{
Sighandler_t oldsig;
}
int
-rsignal_save(signo, handler, save)
-int signo;
-Sighandler_t handler;
-Sigsave_t *save;
+rsignal_save(int signo, Sighandler_t handler, Sigsave_t *save)
{
*save = signal(signo, handler);
return (*save == SIG_ERR) ? -1 : 0;
}
int
-rsignalrestore(signo, save)
-int signo;
-Sigsave_t *save;
+rsignal_restore(int signo, Sigsave_t *save)
{
return (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)
I32
-my_pclose(ptr)
-PerlIO *ptr;
+my_pclose(FILE *ptr)
{
Sigsave_t hstat, istat, qstat;
int status;
SV **svp;
int pid;
+ bool close_failed;
+ int saved_errno;
+#ifdef VMS
+ int saved_vaxc_errno;
+#endif
svp = av_fetch(fdpid,PerlIO_fileno(ptr),TRUE);
pid = (int)SvIVX(*svp);
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 UTS
if(kill(pid, 0) < 0) { return(pid); } /* HOM 12/23/91 */
#endif
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(pid < 0 ? pid : status == 0 ? 0 : (errno = 0, status));
}
#endif /* !DOSISH */
#if !defined(DOSISH) || defined(OS2)
I32
-wait4pid(pid,statusp,flags)
-int pid;
-int *statusp;
-int flags;
+wait4pid(int pid, int *statusp, int flags)
{
SV *sv;
SV** svp;
- char spid[16];
+ char spid[TYPE_CHARS(int)];
if (!pid)
return -1;
}
}
#ifdef HAS_WAITPID
+# ifdef HAS_WAITPID_RUNTIME
+ if (!HAS_WAITPID_RUNTIME)
+ goto hard_way;
+# endif
return waitpid(pid,statusp,flags);
-#else
-#ifdef HAS_WAIT4
+#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)
return result;
}
#endif
-#endif
}
#endif /* !DOSISH */
void
/*SUPPRESS 590*/
-pidgone(pid,status)
-int pid;
-int status;
+pidgone(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);
#endif
void
-repeatcpy(to,from,len,count)
-register char *to;
-register char *from;
-I32 len;
-register I32 count;
+repeatcpy(register char *to, register char *from, I32 len, register I32 count)
{
register I32 todo;
register char *frombase = from;
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 (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 (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;
+scan_oct(char *start, I32 len, I32 *retlen)
{
register char *s = start;
register UV retval = 0;
return retval;
}
-unsigned long
-scan_hex(start, len, retlen)
-char *start;
-I32 len;
-I32 *retlen;
+UV
+scan_hex(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))) {
+ while (len-- && *s && (tmp = strchr((char *) hexdigit, *s))) {
register UV n = retval << 4;
if (!overflowed && (n >> 4) != retval) {
warn("Integer overflow in hex number");
overflowed = TRUE;
}
- retval = n | (tmp - hexdigit) & 15;
+ retval = n | ((tmp - hexdigit) & 15);
s++;
}
*retlen = s - start;
return retval;
}
+#ifdef USE_THREADS
+#ifdef FAKE_THREADS
+/* Very simplistic scheduler for now */
+void
+schedule(void)
+{
+ thr = thr->i.next_run;
+}
+
+void
+perl_cond_init(cp)
+perl_cond *cp;
+{
+ *cp = 0;
+}
+
+void
+perl_cond_signal(cp)
+perl_cond *cp;
+{
+ perl_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(cp)
+perl_cond *cp;
+{
+ perl_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(cp)
+perl_cond *cp;
+{
+ perl_cond cond;
+
+ if (thr->i.next_run == thr)
+ croak("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 OLD_PTHREADS_API
+struct thread *
+getTHR _((void))
+{
+ pthread_addr_t t;
+
+ if (pthread_getspecific(thr_key, &t))
+ croak("panic: pthread_getspecific");
+ return (struct thread *) t;
+}
+#endif /* OLD_PTHREADS_API */
+
+MAGIC *
+condpair_magic(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(&sv_mutex);
+ mg = mg_find(sv, 'm');
+ if (mg) {
+ /* someone else beat us to initialising it */
+ MUTEX_UNLOCK(&sv_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(&sv_mutex);
+ DEBUG_L(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 thread *
+new_struct_thread(struct thread *t)
+{
+ struct thread *thr;
+ SV *sv;
+ SV **svp;
+ I32 i;
+
+ sv = newSVpv("", 0);
+ SvGROW(sv, sizeof(struct thread) + 1);
+ SvCUR_set(sv, sizeof(struct thread));
+ thr = (Thread) SvPVX(sv);
+ /* debug */
+ memset(thr, 0xab, sizeof(struct thread));
+ markstack = 0;
+ scopestack = 0;
+ savestack = 0;
+ retstack = 0;
+ dirty = 0;
+ localizing = 0;
+ /* end debug */
+
+ thr->oursv = sv;
+ init_stacks(ARGS);
+
+ curcop = &compiling;
+ thr->cvcache = newHV();
+ thr->threadsv = newAV();
+ thr->specific = newAV();
+ thr->errsv = newSVpv("", 0);
+ thr->errhv = newHV();
+ thr->flags = THRf_R_JOINABLE;
+ MUTEX_INIT(&thr->mutex);
+
+ curcop = t->Tcurcop; /* XXX As good a guess as any? */
+ defstash = t->Tdefstash; /* XXX maybe these should */
+ curstash = t->Tcurstash; /* always be set to main? */
+
+
+ /* 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)
+ */
+ start_env.je_prev = NULL;
+ start_env.je_ret = -1;
+ start_env.je_mustcatch = TRUE;
+ top_env = &start_env;
+
+ in_eval = FALSE;
+ restartop = 0;
+
+ tainted = t->Ttainted;
+ curpm = t->Tcurpm; /* XXX No PMOP ref count */
+ nrs = newSVsv(t->Tnrs);
+ rs = newSVsv(t->Trs);
+ last_in_gv = (GV*)SvREFCNT_inc(t->Tlast_in_gv);
+ ofslen = t->Tofslen;
+ ofs = savepvn(t->Tofs, ofslen);
+ defoutgv = (GV*)SvREFCNT_inc(t->Tdefoutgv);
+ chopset = t->Tchopset;
+ formtarget = newSVsv(t->Tformtarget);
+ bodytarget = newSVsv(t->Tbodytarget);
+ toptarget = newSVsv(t->Ttoptarget);
+
+ /* Initialise all per-thread SVs that the template thread used */
+ svp = AvARRAY(t->threadsv);
+ for (i = 0; i <= AvFILL(t->threadsv); i++, svp++) {
+ if (*svp && *svp != &sv_undef) {
+ SV *sv = newSVsv(*svp);
+ av_store(thr->threadsv, i, sv);
+ sv_magic(sv, 0, 0, &threadsv_names[i], 1);
+ DEBUG_L(PerlIO_printf(PerlIO_stderr(),
+ "new_struct_thread: copied threadsv %d %p->%p\n",i, t, thr));
+ }
+ }
+
+ MUTEX_LOCK(&threads_mutex);
+ nthreads++;
+ thr->tid = ++threadnum;
+ thr->next = t->next;
+ thr->prev = t;
+ t->next = thr;
+ thr->next->prev = thr;
+ MUTEX_UNLOCK(&threads_mutex);
+
+#ifdef HAVE_THREAD_INTERN
+ 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
+
+
projects / p5sagit/p5-mst-13.2.git / blobdiff