/* util.c
*
- * Copyright (c) 1991-2001, Larry Wall
+ * Copyright (c) 1991-2002, 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.
#endif
#endif
-#ifdef I_VFORK
-# include <vfork.h>
-#endif
-
-/* Put this after #includes because fork and vfork prototypes may
- conflict.
-*/
-#ifndef HAS_VFORK
-# define vfork fork
-#endif
-
#ifdef I_SYS_WAIT
# include <sys/wait.h>
#endif
-#ifdef I_LOCALE
-# include <locale.h>
+#ifdef HAS_SELECT
+# ifdef I_SYS_SELECT
+# include <sys/select.h>
+# endif
#endif
#define FLUSH
# define FD_CLOEXEC 1 /* NeXT needs this */
#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
* allocated hunks back to the original New to track down any memory leaks.
* XXX This advice seems to be widely ignored :-( --AD August 1996.
*/
+/* paranoid version of system's malloc() */
+
Malloc_t
Perl_safesysmalloc(MEM_SIZE size)
{
#endif /* LEAKTEST */
+/* These must be defined when not using Perl's malloc for binary
+ * compatibility */
+
+#ifndef MYMALLOC
+
+Malloc_t Perl_malloc (MEM_SIZE nbytes)
+{
+ dTHXs;
+ return (Malloc_t)PerlMem_malloc(nbytes);
+}
+
+Malloc_t Perl_calloc (MEM_SIZE elements, MEM_SIZE size)
+{
+ dTHXs;
+ return (Malloc_t)PerlMem_calloc(elements, size);
+}
+
+Malloc_t Perl_realloc (Malloc_t where, MEM_SIZE nbytes)
+{
+ dTHXs;
+ return (Malloc_t)PerlMem_realloc(where, nbytes);
+}
+
+Free_t Perl_mfree (Malloc_t where)
+{
+ dTHXs;
+ PerlMem_free(where);
+}
+
+#endif
+
/* copy a string up to some (non-backslashed) delimiter, if any */
char *
return Nullch;
}
-/*
- * Set up for a new ctype locale.
- */
-void
-Perl_new_ctype(pTHX_ char *newctype)
-{
-#ifdef USE_LOCALE_CTYPE
-
- int i;
-
- for (i = 0; i < 256; i++) {
- if (isUPPER_LC(i))
- PL_fold_locale[i] = toLOWER_LC(i);
- else if (isLOWER_LC(i))
- PL_fold_locale[i] = toUPPER_LC(i);
- else
- PL_fold_locale[i] = i;
- }
-
-#endif /* USE_LOCALE_CTYPE */
-}
-
-/*
- * Standardize the locale name from a string returned by 'setlocale'.
- *
- * The standard return value of setlocale() is either
- * (1) "xx_YY" if the first argument of setlocale() is not LC_ALL
- * (2) "xa_YY xb_YY ..." if the first argument of setlocale() is LC_ALL
- * (the space-separated values represent the various sublocales,
- * in some unspecificed order)
- *
- * In some platforms it has a form like "LC_SOMETHING=Lang_Country.866\n",
- * which is harmful for further use of the string in setlocale().
- *
- */
-STATIC char *
-S_stdize_locale(pTHX_ char *locs)
-{
- char *s;
- bool okay = TRUE;
-
- if ((s = strchr(locs, '='))) {
- char *t;
-
- okay = FALSE;
- if ((t = strchr(s, '.'))) {
- char *u;
-
- if ((u = strchr(t, '\n'))) {
-
- if (u[1] == 0) {
- STRLEN len = u - s;
- Move(s + 1, locs, len, char);
- locs[len] = 0;
- okay = TRUE;
- }
- }
- }
- }
-
- if (!okay)
- Perl_croak(aTHX_ "Can't fix broken locale name \"%s\"", locs);
-
- return locs;
-}
-
-/*
- * Set up for a new collation locale.
- */
-void
-Perl_new_collate(pTHX_ char *newcoll)
-{
-#ifdef USE_LOCALE_COLLATE
-
- if (! newcoll) {
- 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 (! PL_collation_name || strNE(PL_collation_name, newcoll)) {
- ++PL_collation_ix;
- Safefree(PL_collation_name);
- PL_collation_name = stdize_locale(savepv(newcoll));
- PL_collation_standard = (strEQ(newcoll, "C") || strEQ(newcoll, "POSIX"));
-
- {
- /* 2: at most so many chars ('a', 'b'). */
- /* 50: surely no system expands a char more. */
-#define XFRMBUFSIZE (2 * 50)
- char xbuf[XFRMBUFSIZE];
- Size_t fa = strxfrm(xbuf, "a", XFRMBUFSIZE);
- Size_t fb = strxfrm(xbuf, "ab", XFRMBUFSIZE);
- SSize_t mult = fb - fa;
- if (mult < 1)
- Perl_croak(aTHX_ "strxfrm() gets absurd");
- PL_collxfrm_base = (fa > mult) ? (fa - mult) : 0;
- PL_collxfrm_mult = mult;
- }
- }
-
-#endif /* USE_LOCALE_COLLATE */
-}
-
-void
-Perl_set_numeric_radix(pTHX)
-{
-#ifdef USE_LOCALE_NUMERIC
-# ifdef HAS_LOCALECONV
- struct lconv* lc;
-
- lc = localeconv();
- if (lc && lc->decimal_point) {
- if (lc->decimal_point[0] == '.' && lc->decimal_point[1] == 0) {
- SvREFCNT_dec(PL_numeric_radix_sv);
- PL_numeric_radix_sv = Nullsv;
- }
- else {
- if (PL_numeric_radix_sv)
- sv_setpv(PL_numeric_radix_sv, lc->decimal_point);
- else
- PL_numeric_radix_sv = newSVpv(lc->decimal_point, 0);
- }
- }
- else
- PL_numeric_radix_sv = Nullsv;
-# endif /* HAS_LOCALECONV */
-#endif /* USE_LOCALE_NUMERIC */
-}
-
-/*
- * Set up for a new numeric locale.
- */
-void
-Perl_new_numeric(pTHX_ char *newnum)
-{
-#ifdef USE_LOCALE_NUMERIC
-
- if (! newnum) {
- if (PL_numeric_name) {
- Safefree(PL_numeric_name);
- PL_numeric_name = NULL;
- }
- PL_numeric_standard = TRUE;
- PL_numeric_local = TRUE;
- return;
- }
-
- if (! PL_numeric_name || strNE(PL_numeric_name, newnum)) {
- Safefree(PL_numeric_name);
- PL_numeric_name = stdize_locale(savepv(newnum));
- PL_numeric_standard = (strEQ(newnum, "C") || strEQ(newnum, "POSIX"));
- PL_numeric_local = TRUE;
- set_numeric_radix();
- }
-
-#endif /* USE_LOCALE_NUMERIC */
-}
-
-void
-Perl_set_numeric_standard(pTHX)
-{
-#ifdef USE_LOCALE_NUMERIC
-
- if (! PL_numeric_standard) {
- setlocale(LC_NUMERIC, "C");
- PL_numeric_standard = TRUE;
- PL_numeric_local = FALSE;
- set_numeric_radix();
- }
-
-#endif /* USE_LOCALE_NUMERIC */
-}
-
-void
-Perl_set_numeric_local(pTHX)
-{
-#ifdef USE_LOCALE_NUMERIC
-
- if (! PL_numeric_local) {
- setlocale(LC_NUMERIC, PL_numeric_name);
- PL_numeric_standard = FALSE;
- PL_numeric_local = TRUE;
- set_numeric_radix();
- }
-
-#endif /* USE_LOCALE_NUMERIC */
-}
-
-/*
- * Initialize locale awareness.
- */
-int
-Perl_init_i18nl10n(pTHX_ int printwarn)
-{
- int ok = 1;
- /* returns
- * 1 = set ok or not applicable,
- * 0 = fallback to C locale,
- * -1 = fallback to C locale failed
- */
-
-#if defined(USE_LOCALE)
-
-#ifdef USE_LOCALE_CTYPE
- char *curctype = NULL;
-#endif /* USE_LOCALE_CTYPE */
-#ifdef USE_LOCALE_COLLATE
- char *curcoll = NULL;
-#endif /* USE_LOCALE_COLLATE */
-#ifdef USE_LOCALE_NUMERIC
- char *curnum = NULL;
-#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;
-
-#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
- 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;
- else
- curctype = savepv(curctype);
-#endif /* USE_LOCALE_CTYPE */
-#ifdef USE_LOCALE_COLLATE
- if (! (curcoll =
- setlocale(LC_COLLATE,
- (!done && (lang || PerlEnv_getenv("LC_COLLATE")))
- ? "" : Nullch)))
- setlocale_failure = TRUE;
- else
- curcoll = savepv(curcoll);
-#endif /* USE_LOCALE_COLLATE */
-#ifdef USE_LOCALE_NUMERIC
- if (! (curnum =
- setlocale(LC_NUMERIC,
- (!done && (lang || PerlEnv_getenv("LC_NUMERIC")))
- ? "" : Nullch)))
- setlocale_failure = TRUE;
- else
- curnum = savepv(curnum);
-#endif /* USE_LOCALE_NUMERIC */
- }
-
-#endif /* LC_ALL */
-
-#endif /* !LOCALE_ENVIRON_REQUIRED */
-
-#ifdef LC_ALL
- if (! setlocale(LC_ALL, ""))
- setlocale_failure = TRUE;
-#endif /* LC_ALL */
-
- if (!setlocale_failure) {
-#ifdef USE_LOCALE_CTYPE
- if (! (curctype = setlocale(LC_CTYPE, "")))
- setlocale_failure = TRUE;
- else
- curctype = savepv(curctype);
-#endif /* USE_LOCALE_CTYPE */
-#ifdef USE_LOCALE_COLLATE
- if (! (curcoll = setlocale(LC_COLLATE, "")))
- setlocale_failure = TRUE;
- else
- curcoll = savepv(curcoll);
-#endif /* USE_LOCALE_COLLATE */
-#ifdef USE_LOCALE_NUMERIC
- if (! (curnum = setlocale(LC_NUMERIC, "")))
- setlocale_failure = TRUE;
- else
- curnum = savepv(curnum);
-#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(Perl_error_log,
- "perl: warning: Setting locale failed.\n");
-
-#else /* !LC_ALL */
-
- PerlIO_printf(Perl_error_log,
- "perl: warning: Setting locale failed for the categories:\n\t");
-#ifdef USE_LOCALE_CTYPE
- if (! curctype)
- PerlIO_printf(Perl_error_log, "LC_CTYPE ");
-#endif /* USE_LOCALE_CTYPE */
-#ifdef USE_LOCALE_COLLATE
- if (! curcoll)
- PerlIO_printf(Perl_error_log, "LC_COLLATE ");
-#endif /* USE_LOCALE_COLLATE */
-#ifdef USE_LOCALE_NUMERIC
- if (! curnum)
- PerlIO_printf(Perl_error_log, "LC_NUMERIC ");
-#endif /* USE_LOCALE_NUMERIC */
- PerlIO_printf(Perl_error_log, "\n");
-
-#endif /* LC_ALL */
-
- PerlIO_printf(Perl_error_log,
- "perl: warning: Please check that your locale settings:\n");
-
-#ifdef __GLIBC__
- PerlIO_printf(Perl_error_log,
- "\tLANGUAGE = %c%s%c,\n",
- language ? '"' : '(',
- language ? language : "unset",
- language ? '"' : ')');
-#endif
-
- PerlIO_printf(Perl_error_log,
- "\tLC_ALL = %c%s%c,\n",
- lc_all ? '"' : '(',
- lc_all ? lc_all : "unset",
- lc_all ? '"' : ')');
-
-#if defined(USE_ENVIRON_ARRAY)
- {
- char **e;
- for (e = environ; *e; e++) {
- if (strnEQ(*e, "LC_", 3)
- && strnNE(*e, "LC_ALL=", 7)
- && (p = strchr(*e, '=')))
- PerlIO_printf(Perl_error_log, "\t%.*s = \"%s\",\n",
- (int)(p - *e), *e, p + 1);
- }
- }
-#else
- PerlIO_printf(Perl_error_log,
- "\t(possibly more locale environment variables)\n");
-#endif
-
- PerlIO_printf(Perl_error_log,
- "\tLANG = %c%s%c\n",
- lang ? '"' : '(',
- lang ? lang : "unset",
- lang ? '"' : ')');
-
- PerlIO_printf(Perl_error_log,
- " are supported and installed on your system.\n");
- }
-
-#ifdef LC_ALL
-
- if (setlocale(LC_ALL, "C")) {
- if (locwarn)
- PerlIO_printf(Perl_error_log,
- "perl: warning: Falling back to the standard locale (\"C\").\n");
- ok = 0;
- }
- else {
- if (locwarn)
- PerlIO_printf(Perl_error_log,
- "perl: warning: Failed to fall back to the standard locale (\"C\").\n");
- ok = -1;
- }
-
-#else /* ! LC_ALL */
-
- 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(Perl_error_log,
- "perl: warning: Cannot fall back to the standard locale (\"C\").\n");
- ok = -1;
- }
-
-#endif /* ! LC_ALL */
-
-#ifdef USE_LOCALE_CTYPE
- curctype = savepv(setlocale(LC_CTYPE, Nullch));
-#endif /* USE_LOCALE_CTYPE */
-#ifdef USE_LOCALE_COLLATE
- curcoll = savepv(setlocale(LC_COLLATE, Nullch));
-#endif /* USE_LOCALE_COLLATE */
-#ifdef USE_LOCALE_NUMERIC
- curnum = savepv(setlocale(LC_NUMERIC, Nullch));
-#endif /* USE_LOCALE_NUMERIC */
- }
- else {
-
-#ifdef USE_LOCALE_CTYPE
- new_ctype(curctype);
-#endif /* USE_LOCALE_CTYPE */
-
-#ifdef USE_LOCALE_COLLATE
- new_collate(curcoll);
-#endif /* USE_LOCALE_COLLATE */
-
-#ifdef USE_LOCALE_NUMERIC
- new_numeric(curnum);
-#endif /* USE_LOCALE_NUMERIC */
- }
-
-#endif /* USE_LOCALE */
-
-#ifdef USE_LOCALE_CTYPE
- if (curctype != NULL)
- Safefree(curctype);
-#endif /* USE_LOCALE_CTYPE */
-#ifdef USE_LOCALE_COLLATE
- if (curcoll != NULL)
- Safefree(curcoll);
-#endif /* USE_LOCALE_COLLATE */
-#ifdef USE_LOCALE_NUMERIC
- if (curnum != NULL)
- Safefree(curnum);
-#endif /* USE_LOCALE_NUMERIC */
- return ok;
-}
-
-/* Backwards compatibility. */
-int
-Perl_init_i18nl14n(pTHX_ int printwarn)
-{
- return init_i18nl10n(printwarn);
-}
-
-#ifdef USE_LOCALE_COLLATE
-
-/*
- * mem_collxfrm() is a bit like strxfrm() but with two important
- * differences. First, it handles embedded NULs. Second, it allocates
- * a bit more memory than needed for the transformed data itself.
- * The real transformed data begins at offset sizeof(collationix).
- * Please see sv_collxfrm() to see how this is used.
- */
-char *
-Perl_mem_collxfrm(pTHX_ const char *s, STRLEN len, STRLEN *xlen)
-{
- char *xbuf;
- 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(PL_collation_ix) + PL_collxfrm_base + (PL_collxfrm_mult * len) + 1;
- New(171, xbuf, xAlloc, char);
- if (! xbuf)
- goto bad;
-
- *(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);
- if (xused == -1)
- goto bad;
- if (xused < xAlloc - xout)
- break;
- xAlloc = (2 * xAlloc) + 1;
- Renew(xbuf, xAlloc, char);
- if (! xbuf)
- goto bad;
- }
-
- xin += strlen(s + xin) + 1;
- xout += xused;
-
- /* Embedded NULs are understood but silently skipped
- * because they make no sense in locale collation. */
- }
-
- xbuf[xout] = '\0';
- *xlen = xout - sizeof(PL_collation_ix);
- return xbuf;
-
- bad:
- Safefree(xbuf);
- *xlen = 0;
- return NULL;
-}
-
-#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
If FBMcf_TAIL, the table is created as if the string has a trailing \n. */
/*
+=head1 Miscellaneous Functions
+
=for apidoc fbm_compile
Analyses the string in order to make fast searches on it using fbm_instr()
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. */
+ if (len == 0) /* TAIL might be on a zero-length string. */
return;
if (len > 2) {
U8 mlen;
}
}
BmRARE(sv) = s[rarest];
- BmPREVIOUS(sv) = rarest;
+ BmPREVIOUS(sv) = (U16)rarest;
BmUSEFUL(sv) = 100; /* Initial value */
if (flags & FBMcf_TAIL)
SvTAIL_on(sv);
register STRLEN littlelen = l;
register I32 multiline = flags & FBMrf_MULTILINE;
- if (bigend - big < littlelen) {
+ if ((STRLEN)(bigend - big) < littlelen) {
if ( SvTAIL(littlestr)
- && (bigend - big == littlelen - 1)
+ && ((STRLEN)(bigend - big) == littlelen - 1)
&& (littlelen == 1
|| (*big == *little &&
memEQ((char *)big, (char *)little, littlelen - 1))))
register unsigned char *table = little + littlelen + FBM_TABLE_OFFSET;
register unsigned char *oldlittle;
- if (littlelen > bigend - big)
+ if (littlelen > (STRLEN)(bigend - big))
return Nullch;
--littlelen; /* Last char found by table lookup */
top2:
/*SUPPRESS 560*/
if ((tmp = table[*s])) {
-#ifdef POINTERRIGOR
- if (bigend - s > tmp) {
- s += tmp;
- goto top2;
- }
- s += tmp;
-#else
if ((s += tmp) < bigend)
goto top2;
-#endif
goto check_end;
}
else { /* less expensive than calling strncmp() */
/* start_shift, end_shift are positive quantities which give offsets
of ends of some substring of bigstr.
- If `last' we want the last occurence.
+ If `last' we want the last occurrence.
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.
*/
/* If SvTAIL is actually due to \Z or \z, this gives false positives
- if PL_multiline. In fact if !PL_multiline the autoritative answer
+ if PL_multiline. In fact if !PL_multiline the authoritative answer
is not supported yet. */
char *
/* The value of pos we can stop at: */
stop_pos = SvCUR(bigstr) - end_shift - (SvCUR(littlestr) - 1 - previous);
if (previous + start_shift > stop_pos) {
+/*
+ stop_pos does not include SvTAIL in the count, so this check is incorrect
+ (I think) - see [ID 20010618.006] and t/op/study.t. HVDS 2001/06/19
+*/
+#if 0
if (previous + start_shift == stop_pos + 1) /* A fake '\n'? */
goto check_tail;
+#endif
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 (*s++ != *x++) {
- s--;
- break;
- }
- }
- 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;
} 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;
/* copy a string to a safe spot */
/*
+=head1 Memory Management
+
=for apidoc savepv
-Copy a string to a safe spot. This does not use an SV.
+Perl's version of C<strdup()>. Returns a pointer to a newly allocated
+string which is a duplicate of C<pv>. The size of the string is
+determined by C<strlen()>. The memory allocated for the new string can
+be freed with the C<Safefree()> function.
=cut
*/
char *
-Perl_savepv(pTHX_ const char *sv)
+Perl_savepv(pTHX_ const char *pv)
{
- register char *newaddr;
-
- New(902,newaddr,strlen(sv)+1,char);
- (void)strcpy(newaddr,sv);
+ register char *newaddr = Nullch;
+ if (pv) {
+ New(902,newaddr,strlen(pv)+1,char);
+ (void)strcpy(newaddr,pv);
+ }
return newaddr;
}
/*
=for apidoc savepvn
-Copy a string to a safe spot. The C<len> indicates number of bytes to
-copy. This does not use an SV.
+Perl's version of what C<strndup()> would be if it existed. Returns a
+pointer to a newly allocated string which is a duplicate of the first
+C<len> bytes from C<pv>. The memory allocated for the new string can be
+freed with the C<Safefree()> function.
=cut
*/
char *
-Perl_savepvn(pTHX_ const char *sv, register I32 len)
+Perl_savepvn(pTHX_ const char *pv, register I32 len)
{
register char *newaddr;
New(903,newaddr,len+1,char);
- Copy(sv,newaddr,len,char); /* might not be null terminated */
- newaddr[len] = '\0'; /* is now */
+ /* Give a meaning to NULL pointer mainly for the use in sv_magic() */
+ if (pv) {
+ Copy(pv,newaddr,len,char); /* might not be null terminated */
+ newaddr[len] = '\0'; /* is now */
+ }
+ else {
+ Zero(newaddr,len+1,char);
+ }
return newaddr;
}
+/*
+=for apidoc savesharedpv
+
+A version of C<savepv()> which allocates the duplicate string in memory
+which is shared between threads.
+
+=cut
+*/
+char *
+Perl_savesharedpv(pTHX_ const char *pv)
+{
+ register char *newaddr = Nullch;
+ if (pv) {
+ newaddr = (char*)PerlMemShared_malloc(strlen(pv)+1);
+ (void)strcpy(newaddr,pv);
+ }
+ return newaddr;
+}
+
+
+
/* the SV for Perl_form() and mess() is not kept in an arena */
STATIC SV *
}
#endif /* PERL_IMPLICIT_CONTEXT */
+/*
+=head1 Miscellaneous Functions
+=for apidoc form
+
+Takes a sprintf-style format pattern and conventional
+(non-SV) arguments and returns the formatted string.
+
+ (char *) Perl_form(pTHX_ const char* pat, ...)
+
+can be used any place a string (char *) is required:
+
+ char * s = Perl_form("%d.%d",major,minor);
+
+Uses a single private buffer so if you want to format several strings you
+must explicitly copy the earlier strings away (and free the copies when you
+are done).
+
+=cut
+*/
+
char *
Perl_form(pTHX_ const char* pat, ...)
{
return retval;
}
+STATIC COP*
+S_closest_cop(pTHX_ COP *cop, OP *o)
+{
+ /* Look for PL_op starting from o. cop is the last COP we've seen. */
+
+ if (!o || o == PL_op) return cop;
+
+ if (o->op_flags & OPf_KIDS) {
+ OP *kid;
+ for (kid = cUNOPo->op_first; kid; kid = kid->op_sibling)
+ {
+ COP *new_cop;
+
+ /* If the OP_NEXTSTATE has been optimised away we can still use it
+ * the get the file and line number. */
+
+ if (kid->op_type == OP_NULL && kid->op_targ == OP_NEXTSTATE)
+ cop = (COP *)kid;
+
+ /* Keep searching, and return when we've found something. */
+
+ new_cop = closest_cop(cop, kid);
+ if (new_cop) return new_cop;
+ }
+ }
+
+ /* Nothing found. */
+
+ return 0;
+}
+
SV *
Perl_vmess(pTHX_ const char *pat, va_list *args)
{
SV *sv = mess_alloc();
static char dgd[] = " during global destruction.\n";
+ COP *cop;
sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*));
if (!SvCUR(sv) || *(SvEND(sv) - 1) != '\n') {
- if (CopLINE(PL_curcop))
+
+ /*
+ * Try and find the file and line for PL_op. This will usually be
+ * PL_curcop, but it might be a cop that has been optimised away. We
+ * can try to find such a cop by searching through the optree starting
+ * from the sibling of PL_curcop.
+ */
+
+ cop = closest_cop(PL_curcop, PL_curcop->op_sibling);
+ if (!cop) cop = PL_curcop;
+
+ if (CopLINE(cop))
Perl_sv_catpvf(aTHX_ sv, " at %s line %"IVdf,
- CopFILE(PL_curcop), (IV)CopLINE(PL_curcop));
+ OutCopFILE(cop), (IV)CopLINE(cop));
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 %"IVdf,
- PL_last_in_gv == PL_argvgv ? "" : GvNAME(PL_last_in_gv),
- line_mode ? "line" : "chunk",
- (IV)IoLINES(GvIOp(PL_last_in_gv)));
+ PL_last_in_gv == PL_argvgv ?
+ "" : GvNAME(PL_last_in_gv),
+ line_mode ? "line" : "chunk",
+ (IV)IoLINES(GvIOp(PL_last_in_gv)));
}
-#ifdef USE_THREADS
+#ifdef USE_5005THREADS
if (thr->tid)
Perl_sv_catpvf(aTHX_ sv, " thread %ld", thr->tid);
#endif
PL_restartop = die_where(message, msglen);
JMPENV_JUMP(3);
}
+ else if (!message)
+ message = SvPVx(ERRSV, msglen);
+
{
#ifdef USE_SFIO
/* SFIO can really mess with your errno */
#endif
PerlIO *serr = Perl_error_log;
- PerlIO_write(serr, message, msglen);
+ PERL_WRITE_MSG_TO_CONSOLE(serr, message, msglen);
(void)PerlIO_flush(serr);
#ifdef USE_SFIO
errno = e;
#endif /* PERL_IMPLICIT_CONTEXT */
/*
+=head1 Warning and Dieing
+
=for apidoc croak
This is the XSUB-writer's interface to Perl's C<die> function.
CV *cv;
SV *msv;
STRLEN msglen;
+ IO *io;
+ MAGIC *mg;
msv = vmess(pat, args);
message = SvPV(msv, msglen);
return;
}
}
+
+ /* if STDERR is tied, use it instead */
+ if (PL_stderrgv && (io = GvIOp(PL_stderrgv))
+ && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar))) {
+ dSP; ENTER;
+ PUSHMARK(SP);
+ XPUSHs(SvTIED_obj((SV*)io, mg));
+ XPUSHs(sv_2mortal(newSVpvn(message, msglen)));
+ PUTBACK;
+ call_method("PRINT", G_SCALAR);
+ LEAVE;
+ return;
+ }
+
{
PerlIO *serr = Perl_error_log;
- PerlIO_write(serr, message, msglen);
+ PERL_WRITE_MSG_TO_CONSOLE(serr, message, msglen);
#ifdef LEAKTEST
DEBUG_L(*message == '!'
? (xstat(message[1]=='!'
message = SvPV(msv, msglen);
if (ckDEAD(err)) {
-#ifdef USE_THREADS
+#ifdef USE_5005THREADS
DEBUG_S(PerlIO_printf(Perl_debug_log, "croak: 0x%"UVxf" %s", PTR2UV(thr), message));
-#endif /* USE_THREADS */
+#endif /* USE_5005THREADS */
if (PL_diehook) {
/* sv_2cv might call Perl_croak() */
SV *olddiehook = PL_diehook;
}
{
PerlIO *serr = Perl_error_log;
- PerlIO_write(serr, message, msglen);
+ PERL_WRITE_MSG_TO_CONSOLE(serr, message, msglen);
(void)PerlIO_flush(serr);
}
my_failure_exit();
}
{
PerlIO *serr = Perl_error_log;
- PerlIO_write(serr, message, msglen);
+ PERL_WRITE_MSG_TO_CONSOLE(serr, message, msglen);
#ifdef LEAKTEST
DEBUG_L(*message == '!'
? (xstat(message[1]=='!'
}
}
+/* since we've already done strlen() for both nam and val
+ * we can use that info to make things faster than
+ * sprintf(s, "%s=%s", nam, val)
+ */
+#define my_setenv_format(s, nam, nlen, val, vlen) \
+ Copy(nam, s, nlen, char); \
+ *(s+nlen) = '='; \
+ Copy(val, s+(nlen+1), vlen, char); \
+ *(s+(nlen+1+vlen)) = '\0'
+
#ifdef USE_ENVIRON_ARRAY
- /* VMS' and EPOC's my_setenv() is in vms.c and epoc.c */
-#if !defined(WIN32)
+ /* VMS' my_setenv() is in vms.c */
+#if !defined(WIN32) && !defined(NETWARE)
void
Perl_my_setenv(pTHX_ char *nam, char *val)
{
+#ifdef USE_ITHREADS
+ /* only parent thread can modify process environment */
+ if (PL_curinterp == aTHX)
+#endif
+ {
#ifndef PERL_USE_SAFE_PUTENV
/* most putenv()s leak, so we manipulate environ directly */
register I32 i=setenv_getix(nam); /* where does it go? */
+ int nlen, vlen;
if (environ == PL_origenviron) { /* need we copy environment? */
I32 j;
for (max = i; environ[max]; max++) ;
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]);
+ int len = strlen(environ[j]);
+ tmpenv[j] = (char*)safesysmalloc((len+1)*sizeof(char));
+ Copy(environ[j], tmpenv[j], len+1, char);
}
tmpenv[max] = Nullch;
environ = tmpenv; /* tell exec where it is now */
}
else
safesysfree(environ[i]);
- environ[i] = (char*)safesysmalloc((strlen(nam)+strlen(val)+2) * sizeof(char));
+ nlen = strlen(nam);
+ vlen = strlen(val);
- (void)sprintf(environ[i],"%s=%s",nam,val);/* all that work just for this */
+ environ[i] = (char*)safesysmalloc((nlen+vlen+2) * sizeof(char));
+ /* all that work just for this */
+ my_setenv_format(environ[i], nam, nlen, val, vlen);
#else /* PERL_USE_SAFE_PUTENV */
-# if defined(__CYGWIN__)
+# if defined(__CYGWIN__) || defined( EPOC)
setenv(nam, val, 1);
# else
char *new_env;
-
- new_env = (char*)safesysmalloc((strlen(nam) + strlen(val) + 2) * sizeof(char));
- (void)sprintf(new_env,"%s=%s",nam,val);/* all that work just for this */
+ int nlen = strlen(nam), vlen;
+ if (!val) {
+ val = "";
+ }
+ vlen = strlen(val);
+ new_env = (char*)safesysmalloc((nlen + vlen + 2) * sizeof(char));
+ /* all that work just for this */
+ my_setenv_format(new_env, nam, nlen, val, vlen);
(void)putenv(new_env);
# endif /* __CYGWIN__ */
#endif /* PERL_USE_SAFE_PUTENV */
+ }
}
-#else /* WIN32 */
+#else /* WIN32 || NETWARE */
void
Perl_my_setenv(pTHX_ char *nam,char *val)
{
register char *envstr;
- STRLEN len = strlen(nam) + 3;
+ int nlen = strlen(nam), vlen;
+
if (!val) {
val = "";
}
- len += strlen(val);
- New(904, envstr, len, char);
- (void)sprintf(envstr,"%s=%s",nam,val);
+ vlen = strlen(val);
+ New(904, envstr, nlen+vlen+2, char);
+ my_setenv_format(envstr, nam, nlen, val, vlen);
(void)PerlEnv_putenv(envstr);
Safefree(envstr);
}
-#endif /* WIN32 */
+#endif /* WIN32 || NETWARE */
I32
Perl_setenv_getix(pTHX_ char *nam)
PerlIO *
Perl_my_popen_list(pTHX_ char *mode, int n, SV **args)
{
-#if (!defined(DOSISH) || defined(HAS_FORK) || defined(AMIGAOS)) && !defined(OS2) && !defined(VMS) && !defined(__OPEN_VM) && !defined(EPOC) && !defined(MACOS_TRADITIONAL)
+#if (!defined(DOSISH) || defined(HAS_FORK) || defined(AMIGAOS)) && !defined(OS2) && !defined(VMS) && !defined(__OPEN_VM) && !defined(EPOC) && !defined(MACOS_TRADITIONAL) && !defined(NETWARE)
int p[2];
register I32 This, that;
register Pid_t pid;
/* Try for another pipe pair for error return */
if (PerlProc_pipe(pp) >= 0)
did_pipes = 1;
- while ((pid = vfork()) < 0) {
+ while ((pid = PerlProc_fork()) < 0) {
if (errno != EAGAIN) {
PerlLIO_close(p[This]);
+ PerlLIO_close(p[that]);
if (did_pipes) {
PerlLIO_close(pp[0]);
PerlLIO_close(pp[1]);
#undef THAT
#define THIS that
#define THAT This
- /* Close parent's end of _the_ pipe */
- PerlLIO_close(p[THAT]);
/* Close parent's end of error status pipe (if any) */
if (did_pipes) {
PerlLIO_close(pp[0]);
if (p[THIS] != (*mode == 'r')) {
PerlLIO_dup2(p[THIS], *mode == 'r');
PerlLIO_close(p[THIS]);
+ if (p[THAT] != (*mode == 'r')) /* if dup2() didn't close it */
+ PerlLIO_close(p[THAT]); /* close parent's end of _the_ pipe */
}
+ else
+ PerlLIO_close(p[THAT]); /* close parent's end of _the_ pipe */
#if !defined(HAS_FCNTL) || !defined(F_SETFD)
/* No automatic close - do it by hand */
# ifndef NOFILE
#undef THAT
}
/* Parent */
- do_execfree(); /* free any memory malloced by child on vfork */
- /* Close child's end of pipe */
- PerlLIO_close(p[that]);
+ do_execfree(); /* free any memory malloced by child on fork */
if (did_pipes)
PerlLIO_close(pp[1]);
/* Keep the lower of the two fd numbers */
PerlLIO_close(p[This]);
p[This] = p[that];
}
+ else
+ PerlLIO_close(p[that]); /* close child's end of pipe */
+
LOCK_FDPID_MUTEX;
sv = *av_fetch(PL_fdpid,p[This],TRUE);
UNLOCK_FDPID_MUTEX;
did_pipes = 0;
if (n) { /* Error */
int pid2, status;
+ PerlLIO_close(p[This]);
if (n != sizeof(int))
Perl_croak(aTHX_ "panic: kid popen errno read");
do {
return Nullfp;
if (doexec && PerlProc_pipe(pp) >= 0)
did_pipes = 1;
- while ((pid = (doexec?vfork():fork())) < 0) {
+ while ((pid = PerlProc_fork()) < 0) {
if (errno != EAGAIN) {
PerlLIO_close(p[This]);
+ PerlLIO_close(p[that]);
if (did_pipes) {
PerlLIO_close(pp[0]);
PerlLIO_close(pp[1]);
#undef THAT
#define THIS that
#define THAT This
- PerlLIO_close(p[THAT]);
if (did_pipes) {
PerlLIO_close(pp[0]);
#if defined(HAS_FCNTL) && defined(F_SETFD)
if (p[THIS] != (*mode == 'r')) {
PerlLIO_dup2(p[THIS], *mode == 'r');
PerlLIO_close(p[THIS]);
+ if (p[THAT] != (*mode == 'r')) /* if dup2() didn't close it */
+ PerlLIO_close(p[THAT]);
}
+ else
+ PerlLIO_close(p[THAT]);
#ifndef OS2
if (doexec) {
#if !defined(HAS_FCNTL) || !defined(F_SETFD)
}
#endif /* defined OS2 */
/*SUPPRESS 560*/
- if ((tmpgv = gv_fetchpv("$",TRUE, SVt_PV)))
+ if ((tmpgv = gv_fetchpv("$",TRUE, SVt_PV))) {
+ SvREADONLY_off(GvSV(tmpgv));
sv_setiv(GvSV(tmpgv), PerlProc_getpid());
+ SvREADONLY_on(GvSV(tmpgv));
+ }
PL_forkprocess = 0;
hv_clear(PL_pidstatus); /* we have no children */
return Nullfp;
#undef THAT
}
do_execfree(); /* free any memory malloced by child on vfork */
- PerlLIO_close(p[that]);
if (did_pipes)
PerlLIO_close(pp[1]);
if (p[that] < p[This]) {
PerlLIO_close(p[This]);
p[This] = p[that];
}
+ else
+ PerlLIO_close(p[that]);
+
LOCK_FDPID_MUTEX;
sv = *av_fetch(PL_fdpid,p[This],TRUE);
UNLOCK_FDPID_MUTEX;
did_pipes = 0;
if (n) { /* Error */
int pid2, status;
+ PerlLIO_close(p[This]);
if (n != sizeof(int))
Perl_croak(aTHX_ "panic: kid popen errno read");
do {
return PerlIO_fdopen(p[This], mode);
}
#else
-#if defined(atarist) || defined(DJGPP)
+#if defined(atarist) || defined(EPOC)
FILE *popen();
PerlIO *
Perl_my_popen(pTHX_ char *cmd, char *mode)
*/
return PerlIO_importFILE(popen(cmd, mode), 0);
}
+#else
+#if defined(DJGPP)
+FILE *djgpp_popen();
+PerlIO *
+Perl_my_popen(pTHX_ char *cmd, char *mode)
+{
+ PERL_FLUSHALL_FOR_CHILD;
+ /* Call system's popen() to get a FILE *, then import it.
+ used 0 for 2nd parameter to PerlIO_importFILE;
+ apparently not used
+ */
+ return PerlIO_importFILE(djgpp_popen(cmd, mode), 0);
+}
+#endif
#endif
#endif /* !DOSISH */
+/* this is called in parent before the fork() */
+void
+Perl_atfork_lock(void)
+{
+#if defined(USE_5005THREADS) || defined(USE_ITHREADS)
+ /* locks must be held in locking order (if any) */
+# ifdef MYMALLOC
+ MUTEX_LOCK(&PL_malloc_mutex);
+# endif
+ OP_REFCNT_LOCK;
+#endif
+}
+
+/* this is called in both parent and child after the fork() */
+void
+Perl_atfork_unlock(void)
+{
+#if defined(USE_5005THREADS) || defined(USE_ITHREADS)
+ /* locks must be released in same order as in atfork_lock() */
+# ifdef MYMALLOC
+ MUTEX_UNLOCK(&PL_malloc_mutex);
+# endif
+ OP_REFCNT_UNLOCK;
+#endif
+}
+
+Pid_t
+Perl_my_fork(void)
+{
+#if defined(HAS_FORK)
+ Pid_t pid;
+#if (defined(USE_5005THREADS) || defined(USE_ITHREADS)) && !defined(HAS_PTHREAD_ATFORK)
+ atfork_lock();
+ pid = fork();
+ atfork_unlock();
+#else
+ /* atfork_lock() and atfork_unlock() are installed as pthread_atfork()
+ * handlers elsewhere in the code */
+ pid = fork();
+#endif
+ return pid;
+#else
+ /* this "canna happen" since nothing should be calling here if !HAS_FORK */
+ Perl_croak_nocontext("fork() not available");
+ return 0;
+#endif /* HAS_FORK */
+}
+
#ifdef DUMP_FDS
void
Perl_dump_fds(pTHX_ char *s)
{
int fd;
- struct stat tmpstatbuf;
+ Stat_t tmpstatbuf;
PerlIO_printf(Perl_debug_log,"%s", s);
for (fd = 0; fd < 32; fd++) {
{
struct sigaction act, oact;
+#ifdef USE_ITHREADS
+ /* only "parent" interpreter can diddle signals */
+ if (PL_curinterp != aTHX)
+ return SIG_ERR;
+#endif
+
act.sa_handler = handler;
sigemptyset(&act.sa_mask);
act.sa_flags = 0;
#ifdef SA_RESTART
-#if !defined(USE_PERLIO) || defined(PERL_OLD_SIGNALS)
+#if defined(PERL_OLD_SIGNALS)
act.sa_flags |= SA_RESTART; /* SVR4, 4.3+BSD */
#endif
#endif
{
struct sigaction act;
+#ifdef USE_ITHREADS
+ /* only "parent" interpreter can diddle signals */
+ if (PL_curinterp != aTHX)
+ return -1;
+#endif
+
act.sa_handler = handler;
sigemptyset(&act.sa_mask);
act.sa_flags = 0;
#ifdef SA_RESTART
-#if !defined(USE_PERLIO) || defined(PERL_OLD_SIGNALS)
+#if defined(PERL_OLD_SIGNALS)
act.sa_flags |= SA_RESTART; /* SVR4, 4.3+BSD */
#endif
#endif
int
Perl_rsignal_restore(pTHX_ int signo, Sigsave_t *save)
{
+#ifdef USE_ITHREADS
+ /* only "parent" interpreter can diddle signals */
+ if (PL_curinterp != aTHX)
+ return -1;
+#endif
+
return sigaction(signo, save, (struct sigaction *)NULL);
}
Sighandler_t
Perl_rsignal(pTHX_ int signo, Sighandler_t handler)
{
+#if defined(USE_ITHREADS) && !defined(WIN32)
+ /* only "parent" interpreter can diddle signals */
+ if (PL_curinterp != aTHX)
+ return SIG_ERR;
+#endif
+
return PerlProc_signal(signo, handler);
}
-static int sig_trapped;
+static int sig_trapped; /* XXX signals are process-wide anyway, so we
+ ignore the implications of this for threading */
static
Signal_t
{
Sighandler_t oldsig;
+#if defined(USE_ITHREADS) && !defined(WIN32)
+ /* only "parent" interpreter can diddle signals */
+ if (PL_curinterp != aTHX)
+ return SIG_ERR;
+#endif
+
sig_trapped = 0;
oldsig = PerlProc_signal(signo, sig_trap);
PerlProc_signal(signo, oldsig);
int
Perl_rsignal_save(pTHX_ int signo, Sighandler_t handler, Sigsave_t *save)
{
+#if defined(USE_ITHREADS) && !defined(WIN32)
+ /* only "parent" interpreter can diddle signals */
+ if (PL_curinterp != aTHX)
+ return -1;
+#endif
*save = PerlProc_signal(signo, handler);
return (*save == SIG_ERR) ? -1 : 0;
}
int
Perl_rsignal_restore(pTHX_ int signo, Sigsave_t *save)
{
+#if defined(USE_ITHREADS) && !defined(WIN32)
+ /* only "parent" interpreter can diddle signals */
+ if (PL_curinterp != aTHX)
+ return -1;
+#endif
return (PerlProc_signal(signo, *save) == SIG_ERR) ? -1 : 0;
}
}
#endif /* !DOSISH */
-#if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
+#if (!defined(DOSISH) || defined(OS2) || defined(WIN32) || defined(NETWARE)) && !defined(MACOS_TRADITIONAL)
I32
Perl_wait4pid(pTHX_ Pid_t pid, int *statusp, int flags)
{
+ I32 result;
if (!pid)
return -1;
#if !defined(HAS_WAITPID) && !defined(HAS_WAIT4) || defined(HAS_WAITPID_RUNTIME)
hv_iterinit(PL_pidstatus);
if ((entry = hv_iternext(PL_pidstatus))) {
+ SV *sv;
+ char spid[TYPE_CHARS(int)];
+
pid = atoi(hv_iterkey(entry,(I32*)statusp));
sv = hv_iterval(PL_pidstatus,entry);
*statusp = SvIVX(sv);
if (!HAS_WAITPID_RUNTIME)
goto hard_way;
# endif
- return PerlProc_waitpid(pid,statusp,flags);
+ result = PerlProc_waitpid(pid,statusp,flags);
+ goto finish;
#endif
#if !defined(HAS_WAITPID) && defined(HAS_WAIT4)
- return wait4((pid==-1)?0:pid,statusp,flags,Null(struct rusage *));
+ result = wait4((pid==-1)?0:pid,statusp,flags,Null(struct rusage *));
+ goto finish;
#endif
#if !defined(HAS_WAITPID) && !defined(HAS_WAIT4) || defined(HAS_WAITPID_RUNTIME)
hard_way:
{
- I32 result;
if (flags)
Perl_croak(aTHX_ "Can't do waitpid with flags");
else {
if (result < 0)
*statusp = -1;
}
- return result;
}
#endif
+ finish:
+ if (result < 0 && errno == EINTR) {
+ PERL_ASYNC_CHECK();
+ }
+ return result;
}
-#endif /* !DOSISH || OS2 || WIN32 */
+#endif /* !DOSISH || OS2 || WIN32 || NETWARE */
void
/*SUPPRESS 590*/
return;
}
-#if defined(atarist) || defined(OS2) || defined(DJGPP)
+#if defined(atarist) || defined(OS2) || defined(EPOC)
int pclose();
#ifdef HAS_FORK
int /* Cannot prototype with I32
/* Needs work for PerlIO ! */
FILE *f = PerlIO_findFILE(ptr);
I32 result = pclose(f);
+ PerlIO_releaseFILE(ptr,f);
+ return result;
+}
+#endif
+
#if defined(DJGPP)
+int djgpp_pclose();
+I32
+Perl_my_pclose(pTHX_ PerlIO *ptr)
+{
+ /* Needs work for PerlIO ! */
+ FILE *f = PerlIO_findFILE(ptr);
+ I32 result = djgpp_pclose(f);
result = (result << 8) & 0xff00;
-#endif
PerlIO_releaseFILE(ptr,f);
return result;
}
}
}
-U32
-Perl_cast_ulong(pTHX_ NV f)
-{
- if (f < 0.0)
- return f < I32_MIN ? (U32) I32_MIN : (U32)(I32) f;
- if (f < U32_MAX_P1) {
-#if CASTFLAGS & 2
- if (f < U32_MAX_P1_HALF)
- return (U32) f;
- f -= U32_MAX_P1_HALF;
- return ((U32) f) | (1 + U32_MAX >> 1);
-#else
- return (U32) f;
-#endif
- }
- return f > 0 ? U32_MAX : 0 /* NaN */;
-}
-
-I32
-Perl_cast_i32(pTHX_ NV f)
-{
- if (f < I32_MAX_P1)
- return f < I32_MIN ? I32_MIN : (I32) f;
- if (f < U32_MAX_P1) {
-#if CASTFLAGS & 2
- if (f < U32_MAX_P1_HALF)
- return (I32)(U32) f;
- f -= U32_MAX_P1_HALF;
- return (I32)(((U32) f) | (1 + U32_MAX >> 1));
-#else
- return (I32)(U32) f;
-#endif
- }
- return f > 0 ? (I32)U32_MAX : 0 /* NaN */;
-}
-
-IV
-Perl_cast_iv(pTHX_ NV f)
-{
- if (f < IV_MAX_P1)
- return f < IV_MIN ? IV_MIN : (IV) f;
- if (f < UV_MAX_P1) {
-#if CASTFLAGS & 2
- /* For future flexibility allowing for sizeof(UV) >= sizeof(IV) */
- if (f < UV_MAX_P1_HALF)
- return (IV)(UV) f;
- f -= UV_MAX_P1_HALF;
- return (IV)(((UV) f) | (1 + UV_MAX >> 1));
-#else
- return (IV)(UV) f;
-#endif
- }
- return f > 0 ? (IV)UV_MAX : 0 /* NaN */;
-}
-
-UV
-Perl_cast_uv(pTHX_ NV f)
-{
- if (f < 0.0)
- return f < IV_MIN ? (UV) IV_MIN : (UV)(IV) f;
- if (f < UV_MAX_P1) {
-#if CASTFLAGS & 2
- if (f < UV_MAX_P1_HALF)
- return (UV) f;
- f -= UV_MAX_P1_HALF;
- return ((UV) f) | (1 + UV_MAX >> 1);
-#else
- return (UV) f;
-#endif
- }
- return f > 0 ? UV_MAX : 0 /* NaN */;
-}
-
#ifndef HAS_RENAME
I32
Perl_same_dirent(pTHX_ char *a, char *b)
{
char *fa = strrchr(a,'/');
char *fb = strrchr(b,'/');
- struct stat tmpstatbuf1;
- struct stat tmpstatbuf2;
+ Stat_t tmpstatbuf1;
+ Stat_t tmpstatbuf2;
SV *tmpsv = sv_newmortal();
if (fa)
return FALSE;
if (fb == b)
sv_setpv(tmpsv, ".");
- else
- 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 */
-
-NV
-Perl_scan_bin(pTHX_ char *start, STRLEN len, STRLEN *retlen)
-{
- register char *s = start;
- register NV rnv = 0.0;
- register UV ruv = 0;
- register bool seenb = FALSE;
- register bool overflowed = FALSE;
-
- for (; len-- && *s; s++) {
- if (!(*s == '0' || *s == '1')) {
- if (*s == '_' && len && *retlen
- && (s[1] == '0' || s[1] == '1'))
- {
- --len;
- ++s;
- }
- else if (seenb == FALSE && *s == 'b' && ruv == 0) {
- /* Disallow 0bbb0b0bbb... */
- seenb = TRUE;
- continue;
- }
- else {
- if (ckWARN(WARN_DIGIT))
- Perl_warner(aTHX_ WARN_DIGIT,
- "Illegal binary digit '%c' ignored", *s);
- break;
- }
- }
- if (!overflowed) {
- register UV xuv = ruv << 1;
-
- if ((xuv >> 1) != ruv) {
- overflowed = TRUE;
- rnv = (NV) ruv;
- if (ckWARN_d(WARN_OVERFLOW))
- Perl_warner(aTHX_ WARN_OVERFLOW,
- "Integer overflow in binary number");
- }
- else
- ruv = xuv | (*s - '0');
- }
- if (overflowed) {
- rnv *= 2;
- /* If an NV has not enough bits in its mantissa to
- * represent an UV this summing of small low-order numbers
- * is a waste of time (because the NV cannot preserve
- * the low-order bits anyway): we could just remember when
- * did we overflow and in the end just multiply rnv by the
- * right amount. */
- rnv += (*s - '0');
- }
- }
- if (!overflowed)
- rnv = (NV) ruv;
- if ( ( overflowed && rnv > 4294967295.0)
-#if UVSIZE > 4
- || (!overflowed && ruv > 0xffffffff )
-#endif
- ) {
- if (ckWARN(WARN_PORTABLE))
- Perl_warner(aTHX_ WARN_PORTABLE,
- "Binary number > 0b11111111111111111111111111111111 non-portable");
- }
- *retlen = s - start;
- return rnv;
-}
-
-NV
-Perl_scan_oct(pTHX_ char *start, STRLEN len, STRLEN *retlen)
-{
- register char *s = start;
- register NV rnv = 0.0;
- register UV ruv = 0;
- register bool overflowed = FALSE;
-
- for (; len-- && *s; s++) {
- if (!(*s >= '0' && *s <= '7')) {
- if (*s == '_' && len && *retlen
- && (s[1] >= '0' && s[1] <= '7'))
- {
- --len;
- ++s;
- }
- else {
- /* Allow \octal to work the DWIM way (that is, stop scanning
- * as soon as non-octal characters are seen, complain only iff
- * someone seems to want to use the digits eight and nine). */
- if (*s == '8' || *s == '9') {
- if (ckWARN(WARN_DIGIT))
- Perl_warner(aTHX_ WARN_DIGIT,
- "Illegal octal digit '%c' ignored", *s);
- }
- break;
- }
- }
- if (!overflowed) {
- register UV xuv = ruv << 3;
-
- if ((xuv >> 3) != ruv) {
- overflowed = TRUE;
- rnv = (NV) ruv;
- if (ckWARN_d(WARN_OVERFLOW))
- Perl_warner(aTHX_ WARN_OVERFLOW,
- "Integer overflow in octal number");
- }
- else
- ruv = xuv | (*s - '0');
- }
- if (overflowed) {
- rnv *= 8.0;
- /* If an NV has not enough bits in its mantissa to
- * represent an UV this summing of small low-order numbers
- * is a waste of time (because the NV cannot preserve
- * the low-order bits anyway): we could just remember when
- * did we overflow and in the end just multiply rnv by the
- * right amount of 8-tuples. */
- rnv += (NV)(*s - '0');
- }
- }
- if (!overflowed)
- rnv = (NV) ruv;
- if ( ( overflowed && rnv > 4294967295.0)
-#if UVSIZE > 4
- || (!overflowed && ruv > 0xffffffff )
-#endif
- ) {
- if (ckWARN(WARN_PORTABLE))
- Perl_warner(aTHX_ WARN_PORTABLE,
- "Octal number > 037777777777 non-portable");
- }
- *retlen = s - start;
- return rnv;
-}
-
-NV
-Perl_scan_hex(pTHX_ char *start, STRLEN len, STRLEN *retlen)
-{
- register char *s = start;
- register NV rnv = 0.0;
- register UV ruv = 0;
- register bool overflowed = FALSE;
- char *hexdigit;
-
- if (len > 2) {
- if (s[0] == 'x') {
- s++;
- len--;
- }
- else if (len > 3 && s[0] == '0' && s[1] == 'x') {
- s+=2;
- len-=2;
- }
- }
-
- for (; len-- && *s; s++) {
- hexdigit = strchr((char *) PL_hexdigit, *s);
- if (!hexdigit) {
- if (*s == '_' && len && *retlen && s[1]
- && (hexdigit = strchr((char *) PL_hexdigit, s[1])))
- {
- --len;
- ++s;
- }
- else {
- if (ckWARN(WARN_DIGIT))
- Perl_warner(aTHX_ WARN_DIGIT,
- "Illegal hexadecimal digit '%c' ignored", *s);
- break;
- }
- }
- if (!overflowed) {
- register UV xuv = ruv << 4;
-
- if ((xuv >> 4) != ruv) {
- overflowed = TRUE;
- rnv = (NV) ruv;
- if (ckWARN_d(WARN_OVERFLOW))
- Perl_warner(aTHX_ WARN_OVERFLOW,
- "Integer overflow in hexadecimal number");
- }
- else
- ruv = xuv | ((hexdigit - PL_hexdigit) & 15);
- }
- if (overflowed) {
- rnv *= 16.0;
- /* If an NV has not enough bits in its mantissa to
- * represent an UV this summing of small low-order numbers
- * is a waste of time (because the NV cannot preserve
- * the low-order bits anyway): we could just remember when
- * did we overflow and in the end just multiply rnv by the
- * right amount of 16-tuples. */
- rnv += (NV)((hexdigit - PL_hexdigit) & 15);
- }
- }
- if (!overflowed)
- rnv = (NV) ruv;
- if ( ( overflowed && rnv > 4294967295.0)
-#if UVSIZE > 4
- || (!overflowed && ruv > 0xffffffff )
-#endif
- ) {
- if (ckWARN(WARN_PORTABLE))
- Perl_warner(aTHX_ WARN_PORTABLE,
- "Hexadecimal number > 0xffffffff non-portable");
- }
- *retlen = s - start;
- return rnv;
+ else
+ 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 */
char*
Perl_find_script(pTHX_ char *scriptname, bool dosearch, char **search_ext, I32 flags)
char *xfailed = Nullch;
char tmpbuf[MAXPATHLEN];
register char *s;
- I32 len;
+ I32 len = 0;
int retval;
#if defined(DOSISH) && !defined(OS2) && !defined(atarist)
# define SEARCH_EXTS ".bat", ".cmd", NULL
void *
Perl_get_context(void)
{
-#if defined(USE_THREADS) || defined(USE_ITHREADS)
+#if defined(USE_5005THREADS) || defined(USE_ITHREADS)
# ifdef OLD_PTHREADS_API
pthread_addr_t t;
if (pthread_getspecific(PL_thr_key, &t))
void
Perl_set_context(void *t)
{
-#if defined(USE_THREADS) || defined(USE_ITHREADS)
+#if defined(USE_5005THREADS) || defined(USE_ITHREADS)
# ifdef I_MACH_CTHREADS
cthread_set_data(cthread_self(), t);
# else
#endif /* !PERL_GET_CONTEXT_DEFINED */
-#ifdef USE_THREADS
+#ifdef USE_5005THREADS
#ifdef FAKE_THREADS
/* Very simplistic scheduler for now */
{
MAGIC *mg;
- SvUPGRADE(sv, SVt_PVMG);
+ (void)SvUPGRADE(sv, SVt_PVMG);
mg = mg_find(sv, PERL_MAGIC_mutex);
if (!mg) {
condpair_t *cp;
mg->mg_len = sizeof(cp);
UNLOCK_CRED_MUTEX; /* XXX need separate mutex? */
DEBUG_S(WITH_THR(PerlIO_printf(Perl_debug_log,
- "%p: condpair_magic %p\n", thr, sv));)
+ "%p: condpair_magic %p\n", thr, sv)));
}
}
return mg;
MgOWNER(mg) = thr;
DEBUG_S(PerlIO_printf(Perl_debug_log,
"0x%"UVxf": Perl_lock lock 0x%"UVxf"\n",
- PTR2UV(thr), PTR2UV(sv));)
+ PTR2UV(thr), PTR2UV(sv)));
MUTEX_UNLOCK(MgMUTEXP(mg));
SAVEDESTRUCTOR_X(Perl_unlock_condpair, sv);
}
SvCUR_set(sv, sizeof(struct perl_thread));
thr = (Thread) SvPVX(sv);
#ifdef DEBUGGING
- memset(thr, 0xab, sizeof(struct perl_thread));
+ Poison(thr, 1, struct perl_thread);
PL_markstack = 0;
PL_scopestack = 0;
PL_savestack = 0;
PL_reg_start_tmpl = 0;
PL_reg_poscache = Nullch;
+ PL_peepp = MEMBER_TO_FPTR(Perl_peep);
+
/* parent thread's data needs to be locked while we make copy */
MUTEX_LOCK(&t->mutex);
PL_tainted = t->Ttainted;
PL_curpm = t->Tcurpm; /* XXX No PMOP ref count */
- PL_nrs = newSVsv(t->Tnrs);
- PL_rs = t->Tnrs ? SvREFCNT_inc(PL_nrs) : Nullsv;
+ PL_rs = newSVsv(t->Trs);
PL_last_in_gv = Nullgv;
PL_ofs_sv = t->Tofs_sv ? SvREFCNT_inc(PL_ofs_sv) : Nullsv;
PL_defoutgv = (GV*)SvREFCNT_inc(t->Tdefoutgv);
#endif /* HAVE_THREAD_INTERN */
return thr;
}
-#endif /* USE_THREADS */
-
-#if defined(HUGE_VAL) || (defined(USE_LONG_DOUBLE) && defined(HUGE_VALL))
-/*
- * This hack is to force load of "huge" support from libm.a
- * So it is in perl for (say) POSIX to use.
- * Needed for SunOS with Sun's 'acc' for example.
- */
-NV
-Perl_huge(void)
-{
-# if defined(USE_LONG_DOUBLE) && defined(HUGE_VALL)
- return HUGE_VALL;
-# endif
- return HUGE_VAL;
-}
-#endif
+#endif /* USE_5005THREADS */
#ifdef PERL_GLOBAL_STRUCT
struct perl_vars *
case want_vtbl_uvar:
result = &PL_vtbl_uvar;
break;
-#ifdef USE_THREADS
+#ifdef USE_5005THREADS
case want_vtbl_mutex:
result = &PL_vtbl_mutex;
break;
return PerlIO_flush(NULL);
#else
# if defined(HAS__FWALK)
+ extern int fflush(FILE *);
/* undocumented, unprototyped, but very useful BSDism */
extern void _fwalk(int (*)(FILE *));
_fwalk(&fflush);
#endif
}
-NV
-Perl_my_atof(pTHX_ const char* s)
-{
- NV x = 0.0;
-#ifdef USE_LOCALE_NUMERIC
- if (PL_numeric_local && IN_LOCALE) {
- NV y;
-
- /* Scan the number twice; once using locale and once without;
- * choose the larger result (in absolute value). */
- Perl_atof2(aTHX_ s, &x);
- SET_NUMERIC_STANDARD();
- Perl_atof2(aTHX_ s, &y);
- SET_NUMERIC_LOCAL();
- if ((y < 0.0 && y < x) || (y > 0.0 && y > x))
- return y;
- }
- else
- Perl_atof2(aTHX_ s, &x);
-#else
- Perl_atof2(aTHX_ s, &x);
-#endif
- return x;
-}
-
-NV
-S_mulexp10(NV value, I32 exponent)
-{
- NV result = 1.0;
- NV power = 10.0;
- bool negative = 0;
- I32 bit;
-
- if (exponent == 0)
- return value;
- else if (exponent < 0) {
- negative = 1;
- exponent = -exponent;
- }
- for (bit = 1; exponent; bit <<= 1) {
- if (exponent & bit) {
- exponent ^= bit;
- result *= power;
- }
- power *= power;
- }
- return negative ? value / result : value * result;
-}
-
-/*
-=for apidoc grok_numeric_radix
-
-Scan and skip for a numeric decimal separator (radix).
-
-=cut
- */
-bool
-Perl_grok_numeric_radix(pTHX_ const char **sp, const char *send)
-{
-#ifdef USE_LOCALE_NUMERIC
- if (PL_numeric_radix_sv && IN_LOCALE) {
- STRLEN len;
- char* radix = SvPV(PL_numeric_radix_sv, len);
- if (*sp + len <= send && memEQ(*sp, radix, len)) {
- *sp += len;
- return TRUE;
- }
- }
- /* always try "." if numeric radix didn't match because
- * we may have data from different locales mixed */
-#endif
- if (*sp < send && **sp == '.') {
- ++*sp;
- return TRUE;
- }
- return FALSE;
-}
-
-/*
-=for apidoc grok_number
-
-Recognise (or not) a number. The type of the number is returned
-(0 if unrecognised), otherwise it is a bit-ORed combination of
-IS_NUMBER_IN_UV, IS_NUMBER_GREATER_THAN_UV_MAX, IS_NUMBER_NOT_INT,
-IS_NUMBER_NEG, IS_NUMBER_INFINITY (defined in perl.h). If the value
-of the number can fit an in UV, it is returned in the *valuep.
-
-=cut
- */
-int
-Perl_grok_number(pTHX_ const char *pv, STRLEN len, UV *valuep)
-{
- const char *s = pv;
- const char *send = pv + len;
- const UV max_div_10 = UV_MAX / 10;
- const char max_mod_10 = UV_MAX % 10 + '0';
- int numtype = 0;
- int sawinf = 0;
-
- while (isSPACE(*s))
- s++;
- if (*s == '-') {
- s++;
- numtype = IS_NUMBER_NEG;
- }
- else if (*s == '+')
- s++;
-
- /* next must be digit or the radix separator or beginning of infinity */
- if (isDIGIT(*s)) {
- /* UVs are at least 32 bits, so the first 9 decimal digits cannot
- overflow. */
- UV value = *s - '0';
- /* This construction seems to be more optimiser friendly.
- (without it gcc does the isDIGIT test and the *s - '0' separately)
- With it gcc on arm is managing 6 instructions (6 cycles) per digit.
- In theory the optimiser could deduce how far to unroll the loop
- before checking for overflow. */
- int digit = *++s - '0';
- if (digit >= 0 && digit <= 9) {
- value = value * 10 + digit;
- digit = *++s - '0';
- if (digit >= 0 && digit <= 9) {
- value = value * 10 + digit;
- digit = *++s - '0';
- if (digit >= 0 && digit <= 9) {
- value = value * 10 + digit;
- digit = *++s - '0';
- if (digit >= 0 && digit <= 9) {
- value = value * 10 + digit;
- digit = *++s - '0';
- if (digit >= 0 && digit <= 9) {
- value = value * 10 + digit;
- digit = *++s - '0';
- if (digit >= 0 && digit <= 9) {
- value = value * 10 + digit;
- digit = *++s - '0';
- if (digit >= 0 && digit <= 9) {
- value = value * 10 + digit;
- digit = *++s - '0';
- if (digit >= 0 && digit <= 9) {
- value = value * 10 + digit;
- /* Now got 9 digits, so need to check
- each time for overflow. */
- digit = *++s - '0';
- while (digit >= 0 && digit <= 9
- && (value < max_div_10
- || (value == max_div_10
- && *s <= max_mod_10))) {
- value = value * 10 + digit;
- digit = *++s - '0';
- }
- if (digit >= 0 && digit <= 9) {
- /* value overflowed.
- skip the remaining digits, don't
- worry about setting *valuep. */
- do {
- s++;
- } while (isDIGIT(*s));
- numtype |=
- IS_NUMBER_GREATER_THAN_UV_MAX;
- goto skip_value;
- }
- }
- }
- }
- }
- }
- }
- }
- }
- numtype |= IS_NUMBER_IN_UV;
- if (valuep)
- *valuep = value;
-
- skip_value:
- if (GROK_NUMERIC_RADIX(&s, send)) {
- numtype |= IS_NUMBER_NOT_INT;
- while (isDIGIT(*s)) /* optional digits after the radix */
- s++;
- }
- }
- else if (GROK_NUMERIC_RADIX(&s, send)) {
- numtype |= IS_NUMBER_NOT_INT;
- /* no digits before the radix means we need digits after it */
- if (isDIGIT(*s)) {
- do {
- s++;
- } while (isDIGIT(*s));
- numtype |= IS_NUMBER_IN_UV;
- if (valuep) {
- /* integer approximation is valid - it's 0. */
- *valuep = 0;
- }
- }
- else
- return 0;
- }
- else if (*s == 'I' || *s == 'i') {
- s++; if (*s != 'N' && *s != 'n') return 0;
- s++; if (*s != 'F' && *s != 'f') return 0;
- s++; if (*s == 'I' || *s == 'i') {
- s++; if (*s != 'N' && *s != 'n') return 0;
- s++; if (*s != 'I' && *s != 'i') return 0;
- s++; if (*s != 'T' && *s != 't') return 0;
- s++; if (*s != 'Y' && *s != 'y') return 0;
- s++;
- }
- sawinf = 1;
- }
- else /* Add test for NaN here. */
- return 0;
-
- if (sawinf) {
- numtype &= IS_NUMBER_NEG; /* Keep track of sign */
- numtype |= IS_NUMBER_INFINITY | IS_NUMBER_NOT_INT;
- } else {
- /* we can have an optional exponent part */
- if (*s == 'e' || *s == 'E') {
- /* The only flag we keep is sign. Blow away any "it's UV" */
- numtype &= IS_NUMBER_NEG;
- numtype |= IS_NUMBER_NOT_INT;
- s++;
- if (*s == '-' || *s == '+')
- s++;
- if (isDIGIT(*s)) {
- do {
- s++;
- } while (isDIGIT(*s));
- }
- else
- return 0;
- }
- }
- while (isSPACE(*s))
- s++;
- if (s >= send)
- return numtype;
- if (len == 10 && memEQ(pv, "0 but true", 10)) {
- if (valuep)
- *valuep = 0;
- return IS_NUMBER_IN_UV;
- }
- return 0;
-}
-
-char*
-Perl_my_atof2(pTHX_ const char* orig, NV* value)
-{
- NV result = 0.0;
- bool negative = 0;
- char* s = (char*)orig;
- char* send = s + strlen(orig) - 1;
- bool seendigit = 0;
- I32 expextra = 0;
- I32 exponent = 0;
- I32 i;
-/* this is arbitrary */
-#define PARTLIM 6
-/* we want the largest integers we can usefully use */
-#if defined(HAS_QUAD) && defined(USE_64_BIT_INT)
-# define PARTSIZE ((int)TYPE_DIGITS(U64)-1)
- U64 part[PARTLIM];
-#else
-# define PARTSIZE ((int)TYPE_DIGITS(U32)-1)
- U32 part[PARTLIM];
-#endif
- I32 ipart = 0; /* index into part[] */
- I32 offcount; /* number of digits in least significant part */
-
- /* sign */
- switch (*s) {
- case '-':
- negative = 1;
- /* fall through */
- case '+':
- ++s;
- }
-
- part[0] = offcount = 0;
- if (isDIGIT(*s)) {
- seendigit = 1; /* get this over with */
-
- /* skip leading zeros */
- while (*s == '0')
- ++s;
- }
-
- /* integer digits */
- while (isDIGIT(*s)) {
- if (++offcount > PARTSIZE) {
- if (++ipart < PARTLIM) {
- part[ipart] = 0;
- offcount = 1; /* ++0 */
- }
- else {
- /* limits of precision reached */
- --ipart;
- --offcount;
- if (*s >= '5')
- ++part[ipart];
- while (isDIGIT(*s)) {
- ++expextra;
- ++s;
- }
- /* warn of loss of precision? */
- break;
- }
- }
- part[ipart] = part[ipart] * 10 + (*s++ - '0');
- }
-
- /* decimal point */
- if (GROK_NUMERIC_RADIX((const char **)&s, send)) {
- if (isDIGIT(*s))
- seendigit = 1; /* get this over with */
-
- /* decimal digits */
- while (isDIGIT(*s)) {
- if (++offcount > PARTSIZE) {
- if (++ipart < PARTLIM) {
- part[ipart] = 0;
- offcount = 1; /* ++0 */
- }
- else {
- /* limits of precision reached */
- --ipart;
- --offcount;
- if (*s >= '5')
- ++part[ipart];
- while (isDIGIT(*s))
- ++s;
- /* warn of loss of precision? */
- break;
- }
- }
- --expextra;
- part[ipart] = part[ipart] * 10 + (*s++ - '0');
- }
- }
-
- /* combine components of mantissa */
- for (i = 0; i <= ipart; ++i)
- result += S_mulexp10((NV)part[ipart - i],
- i ? offcount + (i - 1) * PARTSIZE : 0);
-
- if (seendigit && (*s == 'e' || *s == 'E')) {
- bool expnegative = 0;
-
- ++s;
- switch (*s) {
- case '-':
- expnegative = 1;
- /* fall through */
- case '+':
- ++s;
- }
- while (isDIGIT(*s))
- exponent = exponent * 10 + (*s++ - '0');
- if (expnegative)
- exponent = -exponent;
- }
-
- /* now apply the exponent */
- exponent += expextra;
- result = S_mulexp10(result, exponent);
-
- /* now apply the sign */
- if (negative)
- result = -result;
- *value = result;
- return s;
-}
-
void
Perl_report_evil_fh(pTHX_ GV *gv, IO *io, I32 op)
{
- char *vile;
- I32 warn_type;
char *func =
op == OP_READLINE ? "readline" : /* "<HANDLE>" not nice */
op == OP_LEAVEWRITE ? "write" : /* "write exit" not nice */
"socket" : "filehandle";
char *name = NULL;
- if (gv && io && IoTYPE(io) == IoTYPE_CLOSED) {
- vile = "closed";
- warn_type = WARN_CLOSED;
- }
- else {
- vile = "unopened";
- warn_type = WARN_UNOPENED;
- }
-
if (gv && isGV(gv)) {
- SV *sv = sv_newmortal();
- gv_efullname4(sv, gv, Nullch, FALSE);
- name = SvPVX(sv);
+ name = GvENAME(gv);
}
if (op == OP_phoney_OUTPUT_ONLY || op == OP_phoney_INPUT_ONLY) {
- if (name && *name)
- Perl_warner(aTHX_ WARN_IO, "Filehandle %s opened only for %sput",
- name,
- (op == OP_phoney_INPUT_ONLY ? "in" : "out"));
- else
- Perl_warner(aTHX_ WARN_IO, "Filehandle opened only for %sput",
- (op == OP_phoney_INPUT_ONLY ? "in" : "out"));
- } else if (name && *name) {
- Perl_warner(aTHX_ warn_type,
- "%s%s on %s %s %s", func, pars, vile, type, name);
- if (io && IoDIRP(io) && !(IoFLAGS(io) & IOf_FAKE_DIRP))
- Perl_warner(aTHX_ warn_type,
- "\t(Are you trying to call %s%s on dirhandle %s?)\n",
- func, pars, name);
+ if (ckWARN(WARN_IO)) {
+ if (name && *name)
+ Perl_warner(aTHX_ packWARN(WARN_IO),
+ "Filehandle %s opened only for %sput",
+ name, (op == OP_phoney_INPUT_ONLY ? "in" : "out"));
+ else
+ Perl_warner(aTHX_ packWARN(WARN_IO),
+ "Filehandle opened only for %sput",
+ (op == OP_phoney_INPUT_ONLY ? "in" : "out"));
+ }
}
else {
- Perl_warner(aTHX_ warn_type,
- "%s%s on %s %s", func, pars, vile, type);
- if (gv && io && IoDIRP(io) && !(IoFLAGS(io) & IOf_FAKE_DIRP))
- Perl_warner(aTHX_ warn_type,
- "\t(Are you trying to call %s%s on dirhandle?)\n",
- func, pars);
+ char *vile;
+ I32 warn_type;
+
+ if (gv && io && IoTYPE(io) == IoTYPE_CLOSED) {
+ vile = "closed";
+ warn_type = WARN_CLOSED;
+ }
+ else {
+ vile = "unopened";
+ warn_type = WARN_UNOPENED;
+ }
+
+ if (ckWARN(warn_type)) {
+ if (name && *name) {
+ Perl_warner(aTHX_ packWARN(warn_type),
+ "%s%s on %s %s %s", func, pars, vile, type, name);
+ if (io && IoDIRP(io) && !(IoFLAGS(io) & IOf_FAKE_DIRP))
+ Perl_warner(aTHX_ packWARN(warn_type),
+ "\t(Are you trying to call %s%s on dirhandle %s?)\n",
+ func, pars, name);
+ }
+ else {
+ Perl_warner(aTHX_ packWARN(warn_type),
+ "%s%s on %s %s", func, pars, vile, type);
+ if (gv && io && IoDIRP(io) && !(IoFLAGS(io) & IOf_FAKE_DIRP))
+ Perl_warner(aTHX_ packWARN(warn_type),
+ "\t(Are you trying to call %s%s on dirhandle?)\n",
+ func, pars);
+ }
+ }
}
}
}
#endif
-/* XXX struct tm on some systems (SunOS4/BSD) contains extra (non POSIX)
- * fields for which we don't have Configure support yet:
- * char *tm_zone; -- abbreviation of timezone name
- * long tm_gmtoff; -- offset from GMT in seconds
- * To workaround core dumps from the uninitialised tm_zone we get the
+/* To workaround core dumps from the uninitialised tm_zone we get the
* system to give us a reasonable struct to copy. This fix means that
* strftime uses the tm_zone and tm_gmtoff values returned by
* localtime(time()). That should give the desired result most of the
* time. But probably not always!
*
- * This is a temporary workaround to be removed once Configure
- * support is added and NETaa14816 is considered in full.
- * It does not address tzname aspects of NETaa14816.
+ * This does not address tzname aspects of NETaa14816.
+ *
*/
+
#ifdef HAS_GNULIBC
# ifndef STRUCT_TM_HASZONE
# define STRUCT_TM_HASZONE
# endif
#endif
+#ifdef STRUCT_TM_HASZONE /* Backward compat */
+# ifndef HAS_TM_TM_ZONE
+# define HAS_TM_TM_ZONE
+# endif
+#endif
+
void
Perl_init_tm(pTHX_ struct tm *ptm) /* see mktime, strftime and asctime */
{
-#ifdef STRUCT_TM_HASZONE
+#ifdef HAS_TM_TM_ZONE
Time_t now;
(void)time(&now);
Copy(localtime(&now), ptm, 1, struct tm);
(dp->d_name[1] == '.' && dp->d_name[2] == '\0')))
/*
-=for apidoc sv_getcwd
+=head1 Miscellaneous Functions
+
+=for apidoc getcwd_sv
Fill the sv with current working directory
* because you might chdir out of a directory that you can't chdir
* back into. */
-/* XXX: this needs more porting #ifndef HAS_GETCWD */
int
-Perl_sv_getcwd(pTHX_ register SV *sv)
+Perl_getcwd_sv(pTHX_ register SV *sv)
{
#ifndef PERL_MICRO
-#ifndef HAS_GETCWD
- struct stat statbuf;
- int orig_cdev, orig_cino, cdev, cino, odev, oino, tdev, tino;
- int namelen, pathlen=0;
- DIR *dir;
- Direntry_t *dp;
+#ifndef INCOMPLETE_TAINTS
+ SvTAINTED_on(sv);
#endif
- (void)SvUPGRADE(sv, SVt_PV);
-
#ifdef HAS_GETCWD
-
- SvGROW(sv, 128);
- while ((getcwd(SvPVX(sv), SvLEN(sv)-1) == NULL) && errno == ERANGE) {
- SvGROW(sv, SvLEN(sv) + 128);
+ {
+ char buf[MAXPATHLEN];
+
+ /* Some getcwd()s automatically allocate a buffer of the given
+ * size from the heap if they are given a NULL buffer pointer.
+ * The problem is that this behaviour is not portable. */
+ if (getcwd(buf, sizeof(buf) - 1)) {
+ STRLEN len = strlen(buf);
+ sv_setpvn(sv, buf, len);
+ return TRUE;
+ }
+ else {
+ sv_setsv(sv, &PL_sv_undef);
+ return FALSE;
+ }
}
- SvCUR_set(sv, strlen(SvPVX(sv)));
- SvPOK_only(sv);
#else
+ Stat_t statbuf;
+ int orig_cdev, orig_cino, cdev, cino, odev, oino, tdev, tino;
+ int namelen, pathlen=0;
+ DIR *dir;
+ Direntry_t *dp;
+
+ (void)SvUPGRADE(sv, SVt_PV);
+
if (PerlLIO_lstat(".", &statbuf) < 0) {
SV_CWD_RETURN_UNDEF;
}
SV_CWD_RETURN_UNDEF;
}
+ if (pathlen + namelen + 1 >= MAXPATHLEN) {
+ SV_CWD_RETURN_UNDEF;
+ }
+
SvGROW(sv, pathlen + namelen + 1);
if (pathlen) {
#endif
}
- SvCUR_set(sv, pathlen);
- *SvEND(sv) = '\0';
- SvPOK_only(sv);
+ if (pathlen) {
+ SvCUR_set(sv, pathlen);
+ *SvEND(sv) = '\0';
+ SvPOK_only(sv);
- if (PerlDir_chdir(SvPVX(sv)) < 0) {
- SV_CWD_RETURN_UNDEF;
+ if (PerlDir_chdir(SvPVX(sv)) < 0) {
+ SV_CWD_RETURN_UNDEF;
+ }
}
if (PerlLIO_stat(".", &statbuf) < 0) {
SV_CWD_RETURN_UNDEF;
Perl_croak(aTHX_ "Unstable directory path, "
"current directory changed unexpectedly");
}
-#endif
return TRUE;
+#endif
+
#else
return FALSE;
#endif
}
/*
-=for apidoc sv_realpath
+=head1 SV Manipulation Functions
+
+=for apidoc new_vstring
-Wrap or emulate realpath(3).
+Returns a pointer to the next character after the parsed
+vstring, as well as updating the passed in sv.
+
+Function must be called like
+
+ sv = NEWSV(92,5);
+ s = new_vstring(s,sv);
+
+The sv must already be large enough to store the vstring
+passed in.
=cut
- */
-int
-Perl_sv_realpath(pTHX_ SV *sv, char *path, STRLEN len)
-{
-#ifndef PERL_MICRO
- char name[MAXPATHLEN] = { 0 }, *s;
- STRLEN pathlen, namelen;
- const char zero = '\0';
+*/
- /* Don't use strlen() to avoid running off the end. */
- s = memchr(path, zero, MAXPATHLEN);
- pathlen = s ? s - path : MAXPATHLEN;
+char *
+Perl_new_vstring(pTHX_ char *s, SV *sv)
+{
+ char *pos = s;
+ if (*pos == 'v') pos++; /* get past 'v' */
+ while (isDIGIT(*pos) || *pos == '_')
+ pos++;
+ if (!isALPHA(*pos)) {
+ UV rev;
+ U8 tmpbuf[UTF8_MAXLEN+1];
+ U8 *tmpend;
-#ifdef HAS_REALPATH
+ if (*s == 'v') s++; /* get past 'v' */
- /* Be paranoid about the use of realpath(),
- * it is an infamous source of buffer overruns. */
+ sv_setpvn(sv, "", 0);
- /* Is the source buffer too long? */
- if (pathlen == MAXPATHLEN) {
- Perl_warn(aTHX_ "sv_realpath: realpath(\"%s\"): %c= (MAXPATHLEN = %d)",
- path, s ? '=' : '>', MAXPATHLEN);
- SV_CWD_RETURN_UNDEF;
+ for (;;) {
+ rev = 0;
+ {
+ /* this is atoi() that tolerates underscores */
+ char *end = pos;
+ UV mult = 1;
+ if ( s > pos && *(s-1) == '_') {
+ mult = 10;
+ }
+ while (--end >= s) {
+ UV orev;
+ orev = rev;
+ rev += (*end - '0') * mult;
+ mult *= 10;
+ if (orev > rev && ckWARN_d(WARN_OVERFLOW))
+ Perl_warner(aTHX_ packWARN(WARN_OVERFLOW),
+ "Integer overflow in decimal number");
+ }
+ }
+#ifdef EBCDIC
+ if (rev > 0x7FFFFFFF)
+ Perl_croak(aTHX "In EBCDIC the v-string components cannot exceed 2147483647");
+#endif
+ /* Append native character for the rev point */
+ tmpend = uvchr_to_utf8(tmpbuf, rev);
+ sv_catpvn(sv, (const char*)tmpbuf, tmpend - tmpbuf);
+ if (!UNI_IS_INVARIANT(NATIVE_TO_UNI(rev)))
+ SvUTF8_on(sv);
+ if ( (*pos == '.' || *pos == '_') && isDIGIT(pos[1]))
+ s = ++pos;
+ else {
+ s = pos;
+ break;
+ }
+ while (isDIGIT(*pos) )
+ pos++;
+ }
+ SvPOK_on(sv);
+ SvREADONLY_on(sv);
}
+ return s;
+}
- /* Here goes nothing. */
- if (realpath(path, name) == NULL) {
- Perl_warn(aTHX_ "sv_realpath: realpath(\"%s\"): %s",
- path, Strerror(errno));
- SV_CWD_RETURN_UNDEF;
- }
+#if !defined(HAS_SOCKETPAIR) && defined(HAS_SOCKET) && defined(AF_INET) && defined(PF_INET) && defined(SOCK_DGRAM) && defined(HAS_SELECT)
+# define EMULATE_SOCKETPAIR_UDP
+#endif
- /* Is the destination buffer too long?
- * Don't use strlen() to avoid running off the end. */
- s = memchr(name, zero, MAXPATHLEN);
- namelen = s ? s - name : MAXPATHLEN;
- if (namelen == MAXPATHLEN) {
- Perl_warn(aTHX_ "sv_realpath: realpath(\"%s\"): %c= (MAXPATHLEN = %d)",
- path, s ? '=' : '>', MAXPATHLEN);
- SV_CWD_RETURN_UNDEF;
- }
+#ifdef EMULATE_SOCKETPAIR_UDP
+static int
+S_socketpair_udp (int fd[2]) {
+ dTHX;
+ /* Fake a datagram socketpair using UDP to localhost. */
+ int sockets[2] = {-1, -1};
+ struct sockaddr_in addresses[2];
+ int i;
+ Sock_size_t size = sizeof (struct sockaddr_in);
+ unsigned short port;
+ int got;
- /* The coast is clear? */
- sv_setpvn(sv, name, namelen);
- SvPOK_only(sv);
+ memset (&addresses, 0, sizeof (addresses));
+ i = 1;
+ do {
+ sockets[i] = PerlSock_socket (AF_INET, SOCK_DGRAM, PF_INET);
+ if (sockets[i] == -1)
+ goto tidy_up_and_fail;
+
+ addresses[i].sin_family = AF_INET;
+ addresses[i].sin_addr.s_addr = htonl (INADDR_LOOPBACK);
+ addresses[i].sin_port = 0; /* kernel choses port. */
+ if (PerlSock_bind (sockets[i], (struct sockaddr *) &addresses[i],
+ sizeof (struct sockaddr_in))
+ == -1)
+ goto tidy_up_and_fail;
+ } while (i--);
+
+ /* Now have 2 UDP sockets. Find out which port each is connected to, and
+ for each connect the other socket to it. */
+ i = 1;
+ do {
+ if (PerlSock_getsockname (sockets[i], (struct sockaddr *) &addresses[i], &size)
+ == -1)
+ goto tidy_up_and_fail;
+ if (size != sizeof (struct sockaddr_in))
+ goto abort_tidy_up_and_fail;
+ /* !1 is 0, !0 is 1 */
+ if (PerlSock_connect(sockets[!i], (struct sockaddr *) &addresses[i],
+ sizeof (struct sockaddr_in)) == -1)
+ goto tidy_up_and_fail;
+ } while (i--);
+
+ /* Now we have 2 sockets connected to each other. I don't trust some other
+ process not to have already sent a packet to us (by random) so send
+ a packet from each to the other. */
+ i = 1;
+ do {
+ /* I'm going to send my own port number. As a short.
+ (Who knows if someone somewhere has sin_port as a bitfield and needs
+ this routine. (I'm assuming crays have socketpair)) */
+ port = addresses[i].sin_port;
+ got = PerlLIO_write (sockets[i], &port, sizeof(port));
+ if (got != sizeof(port)) {
+ if (got == -1)
+ goto tidy_up_and_fail;
+ goto abort_tidy_up_and_fail;
+ }
+ } while (i--);
+
+ /* Packets sent. I don't trust them to have arrived though.
+ (As I understand it Solaris TCP stack is multithreaded. Non-blocking
+ connect to localhost will use a second kernel thread. In 2.6 the
+ first thread running the connect() returns before the second completes,
+ so EINPROGRESS> In 2.7 the improved stack is faster and connect()
+ returns 0. Poor programs have tripped up. One poor program's authors'
+ had a 50-1 reverse stock split. Not sure how connected these were.)
+ So I don't trust someone not to have an unpredictable UDP stack.
+ */
- return TRUE;
+ {
+ struct timeval waitfor = {0, 100000}; /* You have 0.1 seconds */
+ int max = sockets[1] > sockets[0] ? sockets[1] : sockets[0];
+ fd_set rset;
+
+ FD_ZERO (&rset);
+ FD_SET (sockets[0], &rset);
+ FD_SET (sockets[1], &rset);
+
+ got = PerlSock_select (max + 1, &rset, NULL, NULL, &waitfor);
+ if (got != 2 || !FD_ISSET (sockets[0], &rset)
+ || !FD_ISSET (sockets[1], &rset)) {
+ /* I hope this is portable and appropriate. */
+ if (got == -1)
+ goto tidy_up_and_fail;
+ goto abort_tidy_up_and_fail;
+ }
+ }
+
+ /* And the paranoia department even now doesn't trust it to have arrive
+ (hence MSG_DONTWAIT). Or that what arrives was sent by us. */
+ {
+ struct sockaddr_in readfrom;
+ unsigned short buffer[2];
+
+ i = 1;
+ do {
+#ifdef MSG_DONTWAIT
+ got = PerlSock_recvfrom (sockets[i], (char *) &buffer, sizeof(buffer),
+ MSG_DONTWAIT,
+ (struct sockaddr *) &readfrom, &size);
#else
+ got = PerlSock_recvfrom (sockets[i], (char *) &buffer, sizeof(buffer),
+ 0,
+ (struct sockaddr *) &readfrom, &size);
+#endif
+
+ if (got == -1)
+ goto tidy_up_and_fail;
+ if (got != sizeof(port)
+ || size != sizeof (struct sockaddr_in)
+ /* Check other socket sent us its port. */
+ || buffer[0] != (unsigned short) addresses[!i].sin_port
+ /* Check kernel says we got the datagram from that socket. */
+ || readfrom.sin_family != addresses[!i].sin_family
+ || readfrom.sin_addr.s_addr != addresses[!i].sin_addr.s_addr
+ || readfrom.sin_port != addresses[!i].sin_port)
+ goto abort_tidy_up_and_fail;
+ } while (i--);
+ }
+ /* My caller (my_socketpair) has validated that this is non-NULL */
+ fd[0] = sockets[0];
+ fd[1] = sockets[1];
+ /* I hereby declare this connection open. May God bless all who cross
+ her. */
+ return 0;
+
+ abort_tidy_up_and_fail:
+ errno = ECONNABORTED;
+ tidy_up_and_fail:
{
- DIR *parent;
- Direntry_t *dp;
- char dotdots[MAXPATHLEN] = { 0 };
- struct stat cst, pst, tst;
+ int save_errno = errno;
+ if (sockets[0] != -1)
+ PerlLIO_close (sockets[0]);
+ if (sockets[1] != -1)
+ PerlLIO_close (sockets[1]);
+ errno = save_errno;
+ return -1;
+ }
+}
+#endif /* EMULATE_SOCKETPAIR_UDP */
- if (PerlLIO_stat(path, &cst) < 0) {
- Perl_warn(aTHX_ "sv_realpath: stat(\"%s\"): %s",
- path, Strerror(errno));
- SV_CWD_RETURN_UNDEF;
+#if !defined(HAS_SOCKETPAIR) && defined(HAS_SOCKET) && defined(AF_INET) && defined(PF_INET)
+int
+Perl_my_socketpair (int family, int type, int protocol, int fd[2]) {
+ /* Stevens says that family must be AF_LOCAL, protocol 0.
+ I'm going to enforce that, then ignore it, and use TCP (or UDP). */
+ dTHX;
+ int listener = -1;
+ int connector = -1;
+ int acceptor = -1;
+ struct sockaddr_in listen_addr;
+ struct sockaddr_in connect_addr;
+ Sock_size_t size;
+
+ if (protocol
+#ifdef AF_UNIX
+ || family != AF_UNIX
+#endif
+ ) {
+ errno = EAFNOSUPPORT;
+ return -1;
+ }
+ if (!fd) {
+ errno = EINVAL;
+ return -1;
}
- (void)SvUPGRADE(sv, SVt_PV);
+#ifdef EMULATE_SOCKETPAIR_UDP
+ if (type == SOCK_DGRAM)
+ return S_socketpair_udp (fd);
+#endif
- if (!len) {
- len = strlen(path);
- }
- Copy(path, dotdots, len, char);
+ listener = PerlSock_socket (AF_INET, type, 0);
+ if (listener == -1)
+ return -1;
+ memset (&listen_addr, 0, sizeof (listen_addr));
+ listen_addr.sin_family = AF_INET;
+ listen_addr.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
+ listen_addr.sin_port = 0; /* kernel choses port. */
+ if (PerlSock_bind (listener, (struct sockaddr *) &listen_addr, sizeof (listen_addr))
+ == -1)
+ goto tidy_up_and_fail;
+ if (PerlSock_listen(listener, 1) == -1)
+ goto tidy_up_and_fail;
+
+ connector = PerlSock_socket (AF_INET, type, 0);
+ if (connector == -1)
+ goto tidy_up_and_fail;
+ /* We want to find out the port number to connect to. */
+ size = sizeof (connect_addr);
+ if (PerlSock_getsockname (listener, (struct sockaddr *) &connect_addr, &size) == -1)
+ goto tidy_up_and_fail;
+ if (size != sizeof (connect_addr))
+ goto abort_tidy_up_and_fail;
+ if (PerlSock_connect(connector, (struct sockaddr *) &connect_addr,
+ sizeof (connect_addr)) == -1)
+ goto tidy_up_and_fail;
+
+ size = sizeof (listen_addr);
+ acceptor = PerlSock_accept (listener, (struct sockaddr *) &listen_addr, &size);
+ if (acceptor == -1)
+ goto tidy_up_and_fail;
+ if (size != sizeof (listen_addr))
+ goto abort_tidy_up_and_fail;
+ PerlLIO_close (listener);
+ /* Now check we are talking to ourself by matching port and host on the
+ two sockets. */
+ if (PerlSock_getsockname (connector, (struct sockaddr *) &connect_addr, &size) == -1)
+ goto tidy_up_and_fail;
+ if (size != sizeof (connect_addr)
+ || listen_addr.sin_family != connect_addr.sin_family
+ || listen_addr.sin_addr.s_addr != connect_addr.sin_addr.s_addr
+ || listen_addr.sin_port != connect_addr.sin_port) {
+ goto abort_tidy_up_and_fail;
+ }
+ fd[0] = connector;
+ fd[1] = acceptor;
+ return 0;
- for (;;) {
- strcat(dotdots, "/..");
- StructCopy(&cst, &pst, struct stat);
+ abort_tidy_up_and_fail:
+ errno = ECONNABORTED; /* I hope this is portable and appropriate. */
+ tidy_up_and_fail:
+ {
+ int save_errno = errno;
+ if (listener != -1)
+ PerlLIO_close (listener);
+ if (connector != -1)
+ PerlLIO_close (connector);
+ if (acceptor != -1)
+ PerlLIO_close (acceptor);
+ errno = save_errno;
+ return -1;
+ }
+}
+#else
+/* In any case have a stub so that there's code corresponding
+ * to the my_socketpair in global.sym. */
+int
+Perl_my_socketpair (int family, int type, int protocol, int fd[2]) {
+#ifdef HAS_SOCKETPAIR
+ return socketpair(family, type, protocol, fd);
+#else
+ return -1;
+#endif
+}
+#endif
- if (PerlLIO_stat(dotdots, &cst) < 0) {
- Perl_warn(aTHX_ "sv_realpath: stat(\"%s\"): %s",
- dotdots, Strerror(errno));
- SV_CWD_RETURN_UNDEF;
- }
+/*
- if (pst.st_dev == cst.st_dev && pst.st_ino == cst.st_ino) {
- /* We've reached the root: previous is same as current */
- break;
- } else {
- STRLEN dotdotslen = strlen(dotdots);
+=for apidoc sv_nosharing
- /* Scan through the dir looking for name of previous */
- if (!(parent = PerlDir_open(dotdots))) {
- Perl_warn(aTHX_ "sv_realpath: opendir(\"%s\"): %s",
- dotdots, Strerror(errno));
- SV_CWD_RETURN_UNDEF;
- }
+Dummy routine which "shares" an SV when there is no sharing module present.
+Exists to avoid test for a NULL function pointer and because it could potentially warn under
+some level of strict-ness.
- SETERRNO(0,SS$_NORMAL); /* for readdir() */
- while ((dp = PerlDir_read(parent)) != NULL) {
- if (SV_CWD_ISDOT(dp)) {
- continue;
- }
+=cut
+*/
- Copy(dotdots, name, dotdotslen, char);
- name[dotdotslen] = '/';
-#ifdef DIRNAMLEN
- namelen = dp->d_namlen;
-#else
- namelen = strlen(dp->d_name);
-#endif
- Copy(dp->d_name, name + dotdotslen + 1, namelen, char);
- name[dotdotslen + 1 + namelen] = 0;
+void
+Perl_sv_nosharing(pTHX_ SV *sv)
+{
+}
- if (PerlLIO_lstat(name, &tst) < 0) {
- PerlDir_close(parent);
- Perl_warn(aTHX_ "sv_realpath: lstat(\"%s\"): %s",
- name, Strerror(errno));
- SV_CWD_RETURN_UNDEF;
- }
+/*
+=for apidoc sv_nolocking
- if (tst.st_dev == pst.st_dev && tst.st_ino == pst.st_ino)
- break;
+Dummy routine which "locks" an SV when there is no locking module present.
+Exists to avoid test for a NULL function pointer and because it could potentially warn under
+some level of strict-ness.
- SETERRNO(0,SS$_NORMAL); /* for readdir() */
- }
+=cut
+*/
- if (!dp && errno) {
- Perl_warn(aTHX_ "sv_realpath: readdir(\"%s\"): %s",
- dotdots, Strerror(errno));
- SV_CWD_RETURN_UNDEF;
- }
+void
+Perl_sv_nolocking(pTHX_ SV *sv)
+{
+}
- SvGROW(sv, pathlen + namelen + 1);
- if (pathlen) {
- /* shift down */
- Move(SvPVX(sv), SvPVX(sv) + namelen + 1, pathlen, char);
- }
- *SvPVX(sv) = '/';
- Move(dp->d_name, SvPVX(sv)+1, namelen, char);
- pathlen += (namelen + 1);
+/*
+=for apidoc sv_nounlocking
-#ifdef VOID_CLOSEDIR
- PerlDir_close(parent);
-#else
- if (PerlDir_close(parent) < 0) {
- Perl_warn(aTHX_ "sv_realpath: closedir(\"%s\"): %s",
- dotdots, Strerror(errno));
- SV_CWD_RETURN_UNDEF;
- }
-#endif
- }
- }
+Dummy routine which "unlocks" an SV when there is no locking module present.
+Exists to avoid test for a NULL function pointer and because it could potentially warn under
+some level of strict-ness.
- SvCUR_set(sv, pathlen);
- SvPOK_only(sv);
+=cut
+*/
- return TRUE;
- }
-#endif
-#else
- return FALSE;
-#endif
+void
+Perl_sv_nounlocking(pTHX_ SV *sv)
+{
}
https://perl5.git.perl.org / perl5.git / blobdiff