dTHX;
#endif
Malloc_t ptr;
+ dSAVEDERRNO;
#ifdef USE_MDH
if (size + PERL_MEMORY_DEBUG_HEADER_SIZE < size)
Perl_croak_nocontext("panic: malloc, size=%" UVuf, (UV) size);
#endif
if (!size) size = 1; /* malloc(0) is NASTY on our system */
+ SAVE_ERRNO;
#ifdef PERL_DEBUG_READONLY_COW
if ((ptr = mmap(0, size, PROT_READ|PROT_WRITE,
MAP_ANON|MAP_PRIVATE, -1, 0)) == MAP_FAILED) {
ptr = (Malloc_t)((char*)ptr+PERL_MEMORY_DEBUG_HEADER_SIZE);
DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%" UVxf ": (%05ld) malloc %ld bytes\n",PTR2UV(ptr),(long)PL_an++,(long)size));
+ /* malloc() can modify errno() even on success, but since someone
+ writing perl code doesn't have any control over when perl calls
+ malloc() we need to hide that.
+ */
+ RESTORE_ERRNO;
}
else {
#ifdef USE_MDH
ptr = safesysmalloc(size);
}
else {
+ dSAVE_ERRNO;
#ifdef USE_MDH
where = (Malloc_t)((char*)where-PERL_MEMORY_DEBUG_HEADER_SIZE);
if (size + PERL_MEMORY_DEBUG_HEADER_SIZE < size)
maybe_protect_ro(header->prev);
#endif
ptr = (Malloc_t)((char*)ptr+PERL_MEMORY_DEBUG_HEADER_SIZE);
+
+ /* realloc() can modify errno() even on success, but since someone
+ writing perl code doesn't have any control over when perl calls
+ realloc() we need to hide that.
+ */
+ RESTORE_ERRNO;
}
/* In particular, must do that fixup above before logging anything via
ptr = (Malloc_t)PerlMem_calloc(count ? count : 1, size ? size : 1);
#endif
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)total_size));
+ DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%" UVxf ": (%05ld) calloc %zu x %zu = %zu bytes\n",PTR2UV(ptr),(long)PL_an++, count, size, total_size));
if (ptr != NULL) {
#ifdef USE_MDH
{
/*
=head1 Miscellaneous Functions
-=for apidoc Am|char *|ninstr|char * big|char * bigend|char * little|char * little_end
+=for apidoc ninstr
Find the first (leftmost) occurrence of a sequence of bytes within another
sequence. This is the Perl version of C<strstr()>, extended to handle
/*
=head1 Miscellaneous Functions
-=for apidoc Am|char *|rninstr|char * big|char * bigend|char * little|char * little_end
+=for apidoc rninstr
Like C<L</ninstr>>, but instead finds the final (rightmost) occurrence of a
sequence of bytes within another sequence, returning C<NULL> if there is no
}
/*
-=for apidoc Am|SV *|mess|const char *pat|...
+=for apidoc mess
Take a sprintf-style format pattern and argument list. These are used to
generate a string message. If the message does not end with a newline,
}
/*
-=for apidoc Am|SV *|mess_sv|SV *basemsg|bool consume
+=for apidoc mess_sv
Expands a message, intended for the user, to include an indication of
the current location in the code, if the message does not already appear
}
/*
-=for apidoc Am|SV *|vmess|const char *pat|va_list *args
+=for apidoc vmess
C<pat> and C<args> are a sprintf-style format pattern and encapsulated
argument list, respectively. These are used to generate a string message. If
STATIC bool
S_invoke_exception_hook(pTHX_ SV *ex, bool warn)
{
+ dVAR;
HV *stash;
GV *gv;
CV *cv;
/* sv_2cv might call Perl_croak() or Perl_warner() */
SV * const oldhook = *hook;
- if (!oldhook)
+ if (!oldhook || oldhook == PERL_WARNHOOK_FATAL)
return FALSE;
ENTER;
}
/*
-=for apidoc Am|OP *|die_sv|SV *baseex
+=for apidoc die_sv
Behaves the same as L</croak_sv>, except for the return type.
It should be used only where the C<OP *> return type is required.
=cut
*/
-#ifdef _MSC_VER
-# pragma warning( push )
-# pragma warning( disable : 4646 ) /* warning C4646: function declared with
- __declspec(noreturn) has non-void return type */
-# pragma warning( disable : 4645 ) /* warning C4645: function declared with
-__declspec(noreturn) has a return statement */
-#endif
+/* silence __declspec(noreturn) warnings */
+MSVC_DIAG_IGNORE(4646 4645)
OP *
Perl_die_sv(pTHX_ SV *baseex)
{
/* NOTREACHED */
NORETURN_FUNCTION_END;
}
-#ifdef _MSC_VER
-# pragma warning( pop )
-#endif
+MSVC_DIAG_RESTORE
/*
-=for apidoc Am|OP *|die|const char *pat|...
+=for apidoc die
Behaves the same as L</croak>, except for the return type.
It should be used only where the C<OP *> return type is required.
*/
#if defined(PERL_IMPLICIT_CONTEXT)
-#ifdef _MSC_VER
-# pragma warning( push )
-# pragma warning( disable : 4646 ) /* warning C4646: function declared with
- __declspec(noreturn) has non-void return type */
-# pragma warning( disable : 4645 ) /* warning C4645: function declared with
-__declspec(noreturn) has a return statement */
-#endif
+
+/* silence __declspec(noreturn) warnings */
+MSVC_DIAG_IGNORE(4646 4645)
OP *
Perl_die_nocontext(const char* pat, ...)
{
va_end(args);
NORETURN_FUNCTION_END;
}
-#ifdef _MSC_VER
-# pragma warning( pop )
-#endif
+MSVC_DIAG_RESTORE
+
#endif /* PERL_IMPLICIT_CONTEXT */
-#ifdef _MSC_VER
-# pragma warning( push )
-# pragma warning( disable : 4646 ) /* warning C4646: function declared with
- __declspec(noreturn) has non-void return type */
-# pragma warning( disable : 4645 ) /* warning C4645: function declared with
-__declspec(noreturn) has a return statement */
-#endif
+/* silence __declspec(noreturn) warnings */
+MSVC_DIAG_IGNORE(4646 4645)
OP *
Perl_die(pTHX_ const char* pat, ...)
{
va_end(args);
NORETURN_FUNCTION_END;
}
-#ifdef _MSC_VER
-# pragma warning( pop )
-#endif
+MSVC_DIAG_RESTORE
/*
-=for apidoc Am|void|croak_sv|SV *baseex
+=for apidoc croak_sv
This is an XS interface to Perl's C<die> function.
}
/*
-=for apidoc Am|void|vcroak|const char *pat|va_list *args
+=for apidoc vcroak
This is an XS interface to Perl's C<die> function.
}
/*
-=for apidoc Am|void|croak|const char *pat|...
+=for apidoc croak
This is an XS interface to Perl's C<die> function.
}
/*
-=for apidoc Am|void|croak_no_modify
+=for apidoc croak_no_modify
Exactly equivalent to C<Perl_croak(aTHX_ "%s", PL_no_modify)>, but generates
terser object code than using C<Perl_croak>. Less code used on exception code
}
/*
-=for apidoc Am|void|warn_sv|SV *baseex
+=for apidoc warn_sv
This is an XS interface to Perl's C<warn> function.
}
/*
-=for apidoc Am|void|vwarn|const char *pat|va_list *args
+=for apidoc vwarn
This is an XS interface to Perl's C<warn> function.
}
/*
-=for apidoc Am|void|warn|const char *pat|...
+=for apidoc warn
This is an XS interface to Perl's C<warn> function.
Copy(val, s+(nlen+1), vlen, char); \
*(s+(nlen+1+vlen)) = '\0'
+
+
#ifdef USE_ENVIRON_ARRAY
/* NB: VMS' my_setenv() is in vms.c */
+/* Configure doesn't test for HAS_SETENV yet, so decide based on platform.
+ * For Solaris, setenv() and unsetenv() were introduced in Solaris 9, so
+ * testing for HAS UNSETENV is sufficient.
+ */
+# if defined(__CYGWIN__)|| defined(__SYMBIAN32__) || defined(__riscos__) || (defined(__sun) && defined(HAS_UNSETENV)) || defined(PERL_DARWIN)
+# define MY_HAS_SETENV
+# endif
+
/* small wrapper for use by Perl_my_setenv that mallocs, or reallocs if
* 'current' is non-null, with up to three sizes that are added together.
* It handles integer overflow.
*/
+# ifndef MY_HAS_SETENV
static char *
S_env_alloc(void *current, Size_t l1, Size_t l2, Size_t l3, Size_t size)
{
panic:
croak_memory_wrap();
}
+# endif
-#if !defined(WIN32) && !defined(NETWARE)
+# if !defined(WIN32) && !defined(NETWARE)
void
Perl_my_setenv(pTHX_ const char *nam, const char *val)
{
dVAR;
-#ifdef __amigaos4__
+# ifdef __amigaos4__
amigaos4_obtain_environ(__FUNCTION__);
-#endif
-#ifdef USE_ITHREADS
+# endif
+
+# ifdef USE_ITHREADS
/* only parent thread can modify process environment */
if (PL_curinterp == aTHX)
-#endif
+# endif
{
-#ifndef PERL_USE_SAFE_PUTENV
+
+# ifndef PERL_USE_SAFE_PUTENV
if (!PL_use_safe_putenv) {
/* most putenv()s leak, so we manipulate environ directly */
UV i;
max = i;
while (environ[max])
max++;
+
/* XXX shouldn't that be max+1 rather than max+2 ??? - DAPM */
tmpenv = (char**)S_env_alloc(NULL, max, 2, 0, sizeof(char*));
+
for (j=0; j<max; j++) { /* copy environment */
const Size_t len = strlen(environ[j]);
tmpenv[j] = S_env_alloc(NULL, len, 1, 0, 1);
Copy(environ[j], tmpenv[j], len+1, char);
}
+
tmpenv[max] = NULL;
environ = tmpenv; /* tell exec where it is now */
}
+
if (!val) {
safesysfree(environ[i]);
while (environ[i]) {
environ[i] = environ[i+1];
i++;
}
-#ifdef __amigaos4__
+# ifdef __amigaos4__
goto my_setenv_out;
-#else
+# else
return;
-#endif
+# endif
}
+
if (!environ[i]) { /* does not exist yet */
environ = (char**)S_env_alloc(environ, i, 2, 0, sizeof(char*));
environ[i+1] = NULL; /* make sure it's null terminated */
environ[i] = S_env_alloc(NULL, nlen, vlen, 2, 1);
/* all that work just for this */
my_setenv_format(environ[i], nam, nlen, val, vlen);
- } else {
-# endif
- /* This next branch should only be called #if defined(HAS_SETENV), but
- Configure doesn't test for that yet. For Solaris, setenv() and unsetenv()
- were introduced in Solaris 9, so testing for HAS UNSETENV is sufficient.
- */
-# if defined(__CYGWIN__)|| defined(__SYMBIAN32__) || defined(__riscos__) || (defined(__sun) && defined(HAS_UNSETENV)) || defined(PERL_DARWIN)
-# if defined(HAS_UNSETENV)
+ }
+ else {
+
+# endif /* !PERL_USE_SAFE_PUTENV */
+
+# ifdef MY_HAS_SETENV
+# if defined(HAS_UNSETENV)
if (val == NULL) {
(void)unsetenv(nam);
} else {
(void)setenv(nam, val, 1);
}
-# else /* ! HAS_UNSETENV */
+# else /* ! HAS_UNSETENV */
(void)setenv(nam, val, 1);
-# endif /* HAS_UNSETENV */
-# elif defined(HAS_UNSETENV)
+# endif /* HAS_UNSETENV */
+
+# elif defined(HAS_UNSETENV)
+
if (val == NULL) {
if (environ) /* old glibc can crash with null environ */
(void)unsetenv(nam);
my_setenv_format(new_env, nam, nlen, val, vlen);
(void)putenv(new_env);
}
-# else /* ! HAS_UNSETENV */
+
+# else /* ! HAS_UNSETENV */
+
char *new_env;
const Size_t nlen = strlen(nam);
Size_t vlen;
/* all that work just for this */
my_setenv_format(new_env, nam, nlen, val, vlen);
(void)putenv(new_env);
-# endif /* __CYGWIN__ */
-#ifndef PERL_USE_SAFE_PUTENV
+
+# endif /* MY_HAS_SETENV */
+
+# ifndef PERL_USE_SAFE_PUTENV
}
-#endif
+# endif
}
-#ifdef __amigaos4__
+
+# ifdef __amigaos4__
my_setenv_out:
amigaos4_release_environ(__FUNCTION__);
-#endif
+# endif
}
-#else /* WIN32 || NETWARE */
+# else /* WIN32 || NETWARE */
void
Perl_my_setenv(pTHX_ const char *nam, const char *val)
Safefree(envstr);
}
-#endif /* WIN32 || NETWARE */
+# endif /* WIN32 || NETWARE */
+
+#endif /* USE_ENVIRON_ARRAY */
+
+
-#endif /* !VMS */
#ifdef UNLINK_ALL_VERSIONS
I32
if (p[THAT] != (*mode == 'r')) /* if dup2() didn't close it */
PerlLIO_close(p[THAT]); /* close parent's end of _the_ pipe */
}
- else
+ else {
+ setfd_cloexec_or_inhexec_by_sysfdness(p[THIS]);
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
if (p[THAT] != (*mode == 'r')) /* if dup2() didn't close it */
PerlLIO_close(p[THAT]);
}
- else
+ else {
+ setfd_cloexec_or_inhexec_by_sysfdness(p[THIS]);
PerlLIO_close(p[THAT]);
+ }
#ifndef OS2
if (doexec) {
#if !defined(HAS_FCNTL) || !defined(F_SETFD)
* timeval. */
{
STRLEN len;
- const char* endptr = pmlenv + stren(pmlenv);
+ const char* endptr = pmlenv + strlen(pmlenv);
int fd;
UV uv;
if (grok_atoUV(pmlenv, &uv, &endptr) /* Ignore endptr. */
#ifdef PERL_IMPLICIT_CONTEXT
-/* 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)
-{
- dVAR;
- void *p;
- PERL_ARGS_ASSERT_MY_CXT_INIT;
- 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) {
- if (PL_my_cxt_size) {
- IV new_size = PL_my_cxt_size;
- while (new_size <= *index)
- new_size *= 2;
- Renew(PL_my_cxt_list, new_size, void *);
- PL_my_cxt_size = new_size;
- }
- else {
- PL_my_cxt_size = 16;
- Newx(PL_my_cxt_list, PL_my_cxt_size, void *);
- }
- }
- /* newSV() allocates one more than needed */
- p = (void*)SvPVX(newSV(size-1));
- PL_my_cxt_list[*index] = p;
- Zero(p, size, char);
- return p;
-}
-
-#else /* #ifndef PERL_GLOBAL_STRUCT_PRIVATE */
+# ifdef PERL_GLOBAL_STRUCT_PRIVATE
+/* rather than each module having a static var holding its index,
+ * use a global array of name to index mappings
+ */
int
Perl_my_cxt_index(pTHX_ const char *my_cxt_key)
{
}
return -1;
}
+# endif
+
+
+/* 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 */
void *
+# ifdef PERL_GLOBAL_STRUCT_PRIVATE
Perl_my_cxt_init(pTHX_ const char *my_cxt_key, size_t size)
+# else
+Perl_my_cxt_init(pTHX_ int *indexp, size_t size)
+# endif
{
dVAR;
void *p;
PERL_ARGS_ASSERT_MY_CXT_INIT;
+# ifdef PERL_GLOBAL_STRUCT_PRIVATE
index = Perl_my_cxt_index(aTHX_ my_cxt_key);
+# else
+ index = *indexp;
+# endif
+ /* do initial check without locking.
+ * -1: not allocated or another thread currently allocating
+ * other: already allocated by another thread
+ */
if (index == -1) {
- /* this module hasn't been allocated an index yet */
MUTEX_LOCK(&PL_my_ctx_mutex);
- index = PL_my_cxt_index++;
+ /*now a stricter check with locking */
+# ifdef PERL_GLOBAL_STRUCT_PRIVATE
+ index = Perl_my_cxt_index(aTHX_ my_cxt_key);
+# else
+ index = *indexp;
+# endif
+ if (index == -1)
+ /* this module hasn't been allocated an index yet */
+# ifdef PERL_GLOBAL_STRUCT_PRIVATE
+ index = PL_my_cxt_index++;
+
+ /* Store the index in a global MY_CXT_KEY string to index mapping
+ * table. This emulates the perl-module static my_cxt_index var on
+ * builds which don't allow static vars */
+ if (PL_my_cxt_keys_size <= index) {
+ int old_size = PL_my_cxt_keys_size;
+ int i;
+ if (PL_my_cxt_keys_size) {
+ IV new_size = PL_my_cxt_keys_size;
+ while (new_size <= index)
+ new_size *= 2;
+ PL_my_cxt_keys = (const char **)PerlMemShared_realloc(
+ PL_my_cxt_keys,
+ new_size * sizeof(const char *));
+ PL_my_cxt_keys_size = new_size;
+ }
+ else {
+ PL_my_cxt_keys_size = 16;
+ PL_my_cxt_keys = (const char **)PerlMemShared_malloc(
+ PL_my_cxt_keys_size * sizeof(const char *));
+ }
+ for (i = old_size; i < PL_my_cxt_keys_size; i++) {
+ PL_my_cxt_keys[i] = 0;
+ }
+ }
+ PL_my_cxt_keys[index] = my_cxt_key;
+# else
+ *indexp = PL_my_cxt_index++;
+ index = *indexp;
+# endif
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) {
IV new_size = PL_my_cxt_size;
while (new_size <= index)
new_size *= 2;
Renew(PL_my_cxt_list, new_size, void *);
- Renew(PL_my_cxt_keys, new_size, const char *);
PL_my_cxt_size = new_size;
}
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 */
STRLEN len = strlen(templte);
int fd;
int attempts = 0;
+#ifdef VMS
+ int delete_on_close = flags & O_VMS_DELETEONCLOSE;
+
+ flags &= ~O_VMS_DELETEONCLOSE;
+#endif
if (len < 6 ||
templte[len-1] != 'X' || templte[len-2] != 'X' || templte[len-3] != 'X' ||
for (i = 1; i <= 6; ++i) {
templte[len-i] = TEMP_FILE_CH[(int)(Perl_internal_drand48() * TEMP_FILE_CH_COUNT)];
}
- fd = PerlLIO_open3(templte, O_RDWR | O_CREAT | O_EXCL | flags, 0600);
+#ifdef VMS
+ if (delete_on_close) {
+ fd = open(templte, O_RDWR | O_CREAT | O_EXCL | flags, 0600, "fop=dlt");
+ }
+ else
+#endif
+ {
+ fd = PerlLIO_open3(templte, O_RDWR | O_CREAT | O_EXCL | flags, 0600);
+ }
} while (fd == -1 && errno == EEXIST && ++attempts <= 100);
return fd;
https://perl5.git.perl.org / perl5.git / blobdiff