/* util.c
*
* Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999,
- * 2000, 2001, 2002, 2003, 2004, 2005, 2006, by Larry Wall and others
+ * 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, by Larry Wall and others
*
* You may distribute under the terms of either the GNU General Public
* License or the Artistic License, as specified in the README file.
{
dTHX;
Malloc_t ptr;
+ MEM_SIZE total_size = 0;
+ /* Even though calloc() for zero bytes is strange, be robust. */
+ if (size && (count <= MEM_SIZE_MAX / size))
+ total_size = size * count;
+ else
+ Perl_croak_nocontext(PL_memory_wrap);
+#ifdef PERL_TRACK_MEMPOOL
+ if (sTHX <= MEM_SIZE_MAX - (MEM_SIZE)total_size)
+ total_size += sTHX;
+ else
+ Perl_croak_nocontext(PL_memory_wrap);
+#endif
#ifdef HAS_64K_LIMIT
- if (size * count > 0xffff) {
+ if (total_size > 0xffff) {
PerlIO_printf(Perl_error_log,
- "Allocation too large: %lx\n", size * count) FLUSH;
+ "Allocation too large: %lx\n", total_size) FLUSH;
my_exit(1);
}
#endif /* HAS_64K_LIMIT */
if ((long)size < 0 || (long)count < 0)
Perl_croak_nocontext("panic: calloc");
#endif
- size *= count;
#ifdef PERL_TRACK_MEMPOOL
- size += sTHX;
+ /* Have to use malloc() because we've added some space for our tracking
+ header. */
+ /* malloc(0) is non-portable. */
+ ptr = (Malloc_t)PerlMem_malloc(total_size ? total_size : 1);
+#else
+ /* Use calloc() because it might save a memset() if the memory is fresh
+ and clean from the OS. */
+ if (count && size)
+ ptr = (Malloc_t)PerlMem_calloc(count, size);
+ else /* calloc(0) is non-portable. */
+ ptr = (Malloc_t)PerlMem_calloc(count ? count : 1, size ? size : 1);
#endif
- ptr = (Malloc_t)PerlMem_malloc(size?size:1); /* malloc(0) is NASTY on our system */
PERL_ALLOC_CHECK(ptr);
- DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%"UVxf": (%05ld) calloc %ld x %ld bytes\n",PTR2UV(ptr),(long)PL_an++,(long)count,(long)size));
+ DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%"UVxf": (%05ld) calloc %ld x %ld bytes\n",PTR2UV(ptr),(long)PL_an++,(long)count,(long)total_size));
if (ptr != NULL) {
- memset((void*)ptr, 0, size);
#ifdef PERL_TRACK_MEMPOOL
{
struct perl_memory_debug_header *const header
= (struct perl_memory_debug_header *)ptr;
+ memset((void*)ptr, 0, total_size);
header->interpreter = aTHX;
/* Link us into the list. */
header->prev = &PL_memory_debug_header;
PL_memory_debug_header.next = header;
header->next->prev = header;
# ifdef PERL_POISON
- header->size = size;
+ header->size = total_size;
# endif
ptr = (Malloc_t)((char*)ptr+sTHX);
}
bigend -= lend - little;
OUTER:
while (big <= bigend) {
- if (*big++ != first)
- goto OUTER;
- for (x=big,s=little; s < lend; x++,s++) {
- if (*s != *x)
- goto OUTER;
+ if (*big++ == first) {
+ for (x=big,s=little; s < lend; x++,s++) {
+ if (*s != *x)
+ goto OUTER;
+ }
+ return (char*)(big-1);
}
- return (char*)(big-1);
}
}
return NULL;
register const U8 *s;
register U32 i;
STRLEN len;
- I32 rarest = 0;
+ U32 rarest = 0;
U32 frequency = 256;
if (flags & FBMcf_TAIL) {
= (unsigned char*)(SvPVX_mutable(sv) + len + PERL_FBM_TABLE_OFFSET);
s = table - 1 - PERL_FBM_TABLE_OFFSET; /* last char */
memset((void*)table, mlen, 256);
- BmFLAGS(sv) = (U8)flags;
i = 0;
sb = s - mlen + 1; /* first char (maybe) */
while (s >= sb) {
frequency = PL_freq[s[i]];
}
}
+ BmFLAGS(sv) = (U8)flags;
BmRARE(sv) = s[rarest];
- BmPREVIOUS_set(sv, rarest);
+ BmPREVIOUS(sv) = rarest;
BmUSEFUL(sv) = 100; /* Initial value */
if (flags & FBMcf_TAIL)
SvTAIL_on(sv);
: (((pos = *old_posp), pos += PL_screamnext[pos]) == 0)) {
cant_find:
if ( BmRARE(littlestr) == '\n'
- && BmPREVIOUS(littlestr) == (U8)SvCUR(littlestr) - 1) {
+ && BmPREVIOUS(littlestr) == SvCUR(littlestr) - 1) {
little = (const unsigned char *)(SvPVX_const(littlestr));
littleend = little + SvCUR(littlestr);
first = *little++;
}
/*
+=for apidoc savesharedpvn
+
+A version of C<savepvn()> which allocates the duplicate string in memory
+which is shared between threads. (With the specific difference that a NULL
+pointer is not acceptable)
+
+=cut
+*/
+char *
+Perl_savesharedpvn(pTHX_ const char *const pv, const STRLEN len)
+{
+ char *const newaddr = (char*)PerlMemShared_malloc(len + 1);
+ assert(pv);
+ if (!newaddr) {
+ return write_no_mem();
+ }
+ newaddr[len] = '\0';
+ return (char*)memcpy(newaddr, pv, len);
+}
+
+/*
=for apidoc savesvpv
A version of C<savepv()>/C<savepvn()> which gets the string to duplicate from
if (CopLINE(cop))
Perl_sv_catpvf(aTHX_ sv, " at %s line %"IVdf,
OutCopFILE(cop), (IV)CopLINE(cop));
- if (GvIO(PL_last_in_gv) && IoLINES(GvIOp(PL_last_in_gv))) {
+ /* Seems that GvIO() can be untrustworthy during global destruction. */
+ if (GvIO(PL_last_in_gv) && (SvTYPE(GvIOp(PL_last_in_gv)) == SVt_PVIO)
+ && IoLINES(GvIOp(PL_last_in_gv)))
+ {
const bool line_mode = (RsSIMPLE(PL_rs) &&
SvCUR(PL_rs) == 1 && *SvPVX_const(PL_rs) == '\n');
Perl_sv_catpvf(aTHX_ sv, ", <%s> %s %"IVdf,
DEBUG_S(PerlIO_printf(Perl_debug_log,
"%p: die/croak: message = %s\ndiehook = %p\n",
- thr, message, PL_diehook));
+ (void*)thr, message, (void*)PL_diehook));
if (PL_diehook) {
S_vdie_common(aTHX_ message, *msglen, *utf8, FALSE);
}
DEBUG_S(PerlIO_printf(Perl_debug_log,
"%p: die: curstack = %p, mainstack = %p\n",
- thr, PL_curstack, PL_mainstack));
+ (void*)thr, (void*)PL_curstack, (void*)PL_mainstack));
message = vdie_croak_common(pat, args, &msglen, &utf8);
SvFLAGS(ERRSV) |= utf8;
DEBUG_S(PerlIO_printf(Perl_debug_log,
"%p: die: restartop = %p, was_in_eval = %d, top_env = %p\n",
- thr, PL_restartop, was_in_eval, PL_top_env));
+ (void*)thr, (void*)PL_restartop, was_in_eval, (void*)PL_top_env));
if ((!PL_restartop && was_in_eval) || PL_top_env->je_prev)
JMPENV_JUMP(3);
return PL_restartop;
register char *s;
I32 len = 0;
int retval;
+ char *bufend;
#if defined(DOSISH) && !defined(OS2) && !defined(atarist)
# define SEARCH_EXTS ".bat", ".cmd", NULL
# define MAX_EXT_LEN 4
{
bool seen_dot = 0;
- PL_bufend = s + strlen(s);
- while (s < PL_bufend) {
+ bufend = s + strlen(s);
+ while (s < bufend) {
#ifdef MACOS_TRADITIONAL
- s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, s, PL_bufend,
+ s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, s, bufend,
',',
&len);
#else
if (len < sizeof tmpbuf)
tmpbuf[len] = '\0';
#else /* ! (atarist || DOSISH) */
- s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, s, PL_bufend,
+ s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, s, bufend,
':',
&len);
#endif /* ! (atarist || DOSISH) */
#endif /* MACOS_TRADITIONAL */
- if (s < PL_bufend)
+ if (s < bufend)
s++;
if (len + 1 + strlen(scriptname) + MAX_EXT_LEN >= sizeof tmpbuf)
continue; /* don't search dir with too-long name */
Function must be called with an already existing SV like
sv = newSV(0);
- s = scan_version(s,SV *sv, bool qv);
+ s = scan_version(s, SV *sv, bool qv);
Performs some preprocessing to the string to ensure that
it has the correct characteristics of a version. Flags the
object if it contains an underscore (which denotes this
-is a alpha version). The boolean qv denotes that the version
+is an alpha version). The boolean qv denotes that the version
should be interpreted as if it had multiple decimals, even if
it doesn't.
while (isSPACE(*s)) /* leading whitespace is OK */
s++;
+ start = last = s;
+
if (*s == 'v') {
s++; /* get past 'v' */
qv = 1; /* force quoted version processing */
}
- start = last = pos = s;
+ pos = s;
/* pre-scan the input string to check for decimals/underbars */
while ( *pos == '.' || *pos == '_' || isDIGIT(*pos) )
if ( alpha && !saw_period )
Perl_croak(aTHX_ "Invalid version format (alpha without decimal)");
+ if ( alpha && saw_period && width == 0 )
+ Perl_croak(aTHX_ "Invalid version format (misplaced _ in number)");
+
if ( saw_period > 1 )
qv = 1; /* force quoted version processing */
av_push(av, newSViv(0));
}
- if ( av_len(av) == -1 ) /* oops, someone forgot to pass a value */
+ /* need to save off the current version string for later */
+ if ( s > start ) {
+ SV * orig = newSVpvn(start,s-start);
+ if ( qv && saw_period == 1 && *start != 'v' ) {
+ /* need to insert a v to be consistent */
+ sv_insert(orig, 0, 0, "v", 1);
+ }
+ hv_store((HV *)hv, "original", 8, orig, 0);
+ }
+ else {
+ hv_store((HV *)hv, "original", 8, newSVpvn("0",1), 0);
av_push(av, newSViv(0));
+ }
+
+ /* And finally, store the AV in the hash */
+ hv_store((HV *)hv, "version", 7, newRV_noinc((SV *)av), 0);
/* fix RT#19517 - special case 'undef' as string */
if ( *s == 'u' && strEQ(s,"undef") ) {
s += 5;
}
- /* And finally, store the AV in the hash */
- hv_store((HV *)hv, "version", 7, newRV_noinc((SV *)av), 0);
return s;
}
hv_store((HV *)hv, "width", 5, newSViv(width), 0);
}
+ if ( hv_exists((HV*)ver, "original", 8 ) )
+ {
+ SV * pv = *hv_fetchs((HV*)ver, "original", FALSE);
+ hv_store((HV *)hv, "original", 8, newSVsv(pv), 0);
+ }
+
sav = (AV *)SvRV(*hv_fetchs((HV*)ver, "version", FALSE));
/* This will get reblessed later if a derived class*/
for ( key = 0; key <= av_len(sav); key++ )
const STRLEN len = mg->mg_len;
char * const version = savepvn( (const char*)mg->mg_ptr, len);
sv_setpvn(rv,version,len);
+ /* this is for consistency with the pure Perl class */
+ if ( *version != 'v' )
+ sv_insert(rv, 0, 0, "v", 1);
Safefree(version);
}
else {
}
}
#endif
- return upg_version(rv);
+ return upg_version(rv, FALSE);
}
/*
In-place upgrade of the supplied SV to a version object.
- SV *sv = upg_version(SV *sv);
+ SV *sv = upg_version(SV *sv, bool qv);
-Returns a pointer to the upgraded SV.
+Returns a pointer to the upgraded SV. Set the boolean qv if you want
+to force this SV to be interpreted as an "extended" version.
=cut
*/
SV *
-Perl_upg_version(pTHX_ SV *ver)
+Perl_upg_version(pTHX_ SV *ver, bool qv)
{
const char *version, *s;
- bool qv = 0;
#ifdef SvVOK
const MAGIC *mg;
#endif
- if ( SvNOK(ver) ) /* may get too much accuracy */
+ if ( SvNOK(ver) && !( SvPOK(ver) && sv_len(ver) == 3 ) )
{
+ /* may get too much accuracy */
char tbuf[64];
#ifdef USE_LOCALE_NUMERIC
char *loc = setlocale(LC_NUMERIC, "C");
setlocale(LC_NUMERIC, loc);
#endif
while (tbuf[len-1] == '0' && len > 0) len--;
+ if ( tbuf[len-1] == '.' ) len--; /* eat the trailing decimal */
version = savepvn(tbuf, len);
}
#ifdef SvVOK
#endif
else /* must be a string or something like a string */
{
- version = savepv(SvPV_nolen(ver));
+ STRLEN len;
+ version = savepv(SvPV(ver,len));
+#ifndef SvVOK
+# if PERL_VERSION > 5
+ /* This will only be executed for 5.6.0 - 5.8.0 inclusive */
+ if ( len == 3 && !instr(version,".") && !instr(version,"_") ) {
+ /* may be a v-string */
+ SV * const nsv = sv_newmortal();
+ const char *nver;
+ const char *pos;
+ int saw_period = 0;
+ sv_setpvf(nsv,"v%vd",ver);
+ pos = nver = savepv(SvPV_nolen(nsv));
+
+ /* scan the resulting formatted string */
+ pos++; /* skip the leading 'v' */
+ while ( *pos == '.' || isDIGIT(*pos) ) {
+ if ( *pos == '.' )
+ saw_period++ ;
+ pos++;
+ }
+
+ /* is definitely a v-string */
+ if ( saw_period == 2 ) {
+ Safefree(version);
+ version = nver;
+ }
+ }
+# endif
+#endif
}
s = scan_version(version, ver, qv);
SV *
Perl_vstringify(pTHX_ SV *vs)
{
+ SV *pv;
if ( SvROK(vs) )
vs = SvRV(vs);
if ( !vverify(vs) )
Perl_croak(aTHX_ "Invalid version object");
- if ( hv_exists((HV *)vs, "qv", 2) )
- return vnormal(vs);
+ pv = *hv_fetchs((HV*)vs, "original", FALSE);
+ if ( SvPOK(pv) )
+ return newSVsv(pv);
else
- return vnumify(vs);
+ return &PL_sv_undef;
}
/*
#ifdef PERL_GLOBAL_STRUCT
+#define PERL_GLOBAL_STRUCT_INIT
+#include "opcode.h" /* the ppaddr and check */
+
struct perl_vars *
Perl_init_global_struct(pTHX)
{
struct perl_vars *plvarsp = NULL;
-#ifdef PERL_GLOBAL_STRUCT
-# define PERL_GLOBAL_STRUCT_INIT
-# include "opcode.h" /* the ppaddr and check */
+# ifdef PERL_GLOBAL_STRUCT
const IV nppaddr = sizeof(Gppaddr)/sizeof(Perl_ppaddr_t);
const IV ncheck = sizeof(Gcheck) /sizeof(Perl_check_t);
# ifdef PERL_GLOBAL_STRUCT_PRIVATE
# undef PERLVARIC
# undef PERLVARISC
# ifdef PERL_GLOBAL_STRUCT
- plvarsp->Gppaddr = PerlMem_malloc(nppaddr * sizeof(Perl_ppaddr_t));
+ plvarsp->Gppaddr =
+ (Perl_ppaddr_t*)
+ PerlMem_malloc(nppaddr * sizeof(Perl_ppaddr_t));
if (!plvarsp->Gppaddr)
exit(1);
- plvarsp->Gcheck = PerlMem_malloc(ncheck * sizeof(Perl_check_t));
+ plvarsp->Gcheck =
+ (Perl_check_t*)
+ PerlMem_malloc(ncheck * sizeof(Perl_check_t));
if (!plvarsp->Gcheck)
exit(1);
Copy(Gppaddr, plvarsp->Gppaddr, nppaddr, Perl_ppaddr_t);
# ifdef PERL_SET_VARS
PERL_SET_VARS(plvarsp);
# endif
-# undef PERL_GLOBAL_STRUCT_INIT
-#endif
+# undef PERL_GLOBAL_STRUCT_INIT
+# endif
return plvarsp;
}
void
Perl_free_global_struct(pTHX_ struct perl_vars *plvarsp)
{
-#ifdef PERL_GLOBAL_STRUCT
+# ifdef PERL_GLOBAL_STRUCT
# ifdef PERL_UNSET_VARS
PERL_UNSET_VARS(plvarsp);
# endif
free(plvarsp->Gppaddr);
free(plvarsp->Gcheck);
-# ifdef PERL_GLOBAL_STRUCT_PRIVATE
+# ifdef PERL_GLOBAL_STRUCT_PRIVATE
free(plvarsp);
-# endif
-#endif
+# endif
+# endif
}
#endif /* PERL_GLOBAL_STRUCT */
#ifdef PERL_IMPLICIT_CONTEXT
-/* implements the MY_CXT_INIT macro. The first time a module is loaded,
+/* Implements the MY_CXT_INIT macro. The first time a module is loaded,
the global PL_my_cxt_index is incremented, and that value is assigned to
that module's static my_cxt_index (who's address is passed as an arg).
Then, for each interpreter this function is called for, it makes sure a
void* slot is available to hang the static data off, by allocating or
extending the interpreter's PL_my_cxt_list array */
+#ifndef PERL_GLOBAL_STRUCT_PRIVATE
void *
Perl_my_cxt_init(pTHX_ int *index, size_t size)
{
Zero(p, size, char);
return p;
}
-#endif
+
+#else /* #ifndef PERL_GLOBAL_STRUCT_PRIVATE */
+
+int
+Perl_my_cxt_index(pTHX_ const char *my_cxt_key)
+{
+ dVAR;
+ int index;
+
+ for (index = 0; index < PL_my_cxt_index; index++) {
+ const char *key = PL_my_cxt_keys[index];
+ /* try direct pointer compare first - there are chances to success,
+ * and it's much faster.
+ */
+ if ((key == my_cxt_key) || strEQ(key, my_cxt_key))
+ return index;
+ }
+ return -1;
+}
+
+void *
+Perl_my_cxt_init(pTHX_ const char *my_cxt_key, size_t size)
+{
+ dVAR;
+ void *p;
+ int index;
+
+ index = Perl_my_cxt_index(aTHX_ my_cxt_key);
+ if (index == -1) {
+ /* this module hasn't been allocated an index yet */
+ MUTEX_LOCK(&PL_my_ctx_mutex);
+ index = PL_my_cxt_index++;
+ MUTEX_UNLOCK(&PL_my_ctx_mutex);
+ }
+
+ /* make sure the array is big enough */
+ if (PL_my_cxt_size <= index) {
+ int old_size = PL_my_cxt_size;
+ int i;
+ if (PL_my_cxt_size) {
+ while (PL_my_cxt_size <= index)
+ PL_my_cxt_size *= 2;
+ Renew(PL_my_cxt_list, PL_my_cxt_size, void *);
+ Renew(PL_my_cxt_keys, PL_my_cxt_size, const char *);
+ }
+ else {
+ PL_my_cxt_size = 16;
+ Newx(PL_my_cxt_list, PL_my_cxt_size, void *);
+ Newx(PL_my_cxt_keys, PL_my_cxt_size, const char *);
+ }
+ for (i = old_size; i < PL_my_cxt_size; i++) {
+ PL_my_cxt_keys[i] = 0;
+ PL_my_cxt_list[i] = 0;
+ }
+ }
+ PL_my_cxt_keys[index] = my_cxt_key;
+ /* newSV() allocates one more than needed */
+ p = (void*)SvPVX(newSV(size-1));
+ PL_my_cxt_list[index] = p;
+ Zero(p, size, char);
+ return p;
+}
+#endif /* #ifndef PERL_GLOBAL_STRUCT_PRIVATE */
+#endif /* PERL_IMPLICIT_CONTEXT */
#ifndef HAS_STRLCAT
Size_t
}
#endif
+#if defined(_MSC_VER) && (_MSC_VER >= 1300) && (_MSC_VER < 1400) && (WINVER < 0x0500)
+/* VC7 or 7.1, building with pre-VC7 runtime libraries. */
+long _ftol( double ); /* Defined by VC6 C libs. */
+long _ftol2( double dblSource ) { return _ftol( dblSource ); }
+#endif
+
void
Perl_get_db_sub(pTHX_ SV **svp, CV *cv)
{
}
}
+int
+Perl_my_dirfd(pTHX_ DIR * dir) {
+
+ /* Most dirfd implementations have problems when passed NULL. */
+ if(!dir)
+ return -1;
+#ifdef HAS_DIRFD
+ return dirfd(dir);
+#elif defined(HAS_DIR_DD_FD)
+ return dir->dd_fd;
+#else
+ Perl_die(aTHX_ PL_no_func, "dirfd");
+ /* NOT REACHED */
+ return 0;
+#endif
+}
+
/*
* Local variables:
* c-indentation-style: bsd