* opposite directions."
* --Sourcery
*
- * Contributed by Arthur Bergman arthur@contiller.se
- * pulled in the (an)other direction by Nick Ing-Simmons nick@ing-simmons.net
+ * Contributed by Artur Bergman <sky AT crucially DOT net>
+ * Pulled in the (an)other direction by Nick Ing-Simmons
+ * <nick AT ing-simmons DOT net>
+ * CPAN version produced by Jerry D. Hedden <jdhedden AT cpan DOT org>
*/
/*
*
* Aggregates (AVs and HVs) are implemented using tie magic, except that
* the vtable used is one defined in this file rather than the standard one.
- * This means that where a tie function like is FETCH is normally invoked by
+ * This means that where a tie function like FETCH is normally invoked by
* the tie magic's mg_get() function, we completely bypass the calling of a
* perl-level function, and directly call C-level code to handle it. On
- * the other hand. calls to functions like PUSH are done directly by code
- * in av.c etc, which we can't bypass. So the best we can do is to provide
+ * the other hand, calls to functions like PUSH are done directly by code
+ * in av.c, etc., which we can't bypass. So the best we can do is to provide
* XS versions of these functions. We also have to attach a tie object,
* blessed into the class threads::shared::tie, to keep the method-calling
* code happy.
* FLAGS = (PADMY,GMG,SMG)
* MAGIC = 0x824d88
* MG_TYPE = PERL_MAGIC_shared_scalar(n)
- * MG_PTR = 0x810358 <<<< pointer to the shared SV
+ * MG_PTR = 0x810358 <<<< pointer to the shared SV
*
* -----------------
*
* FLAGS = (PADMY,RMG)
* MAGIC = 0x824e48
* MG_TYPE = PERL_MAGIC_tied(P)
- * MG_OBJ = 0x7136e0 <<<< ref to the tied object
+ * MG_OBJ = 0x7136e0 <<<< ref to the tied object
* SV = RV(0x7136f0) at 0x7136e0
* RV = 0x738640
* SV = PVMG(0x7ba238) at 0x738640 <<<< the tied object
* FLAGS = (OBJECT,IOK,pIOK)
- * IV = 8455000 <<<< pointer to the shared AV
+ * IV = 8455000 <<<< pointer to the shared AV
* STASH = 0x80abf0 "threads::shared::tie"
- * MG_PTR = 0x810358 "" <<<< another pointer to the shared AV
+ * MG_PTR = 0x810358 "" <<<< another pointer to the shared AV
* ARRAY = 0x0
*
* -----------------
* FLAGS = (GMG,SMG,RMG,pIOK)
* MAGIC = 0x72bd58
* MG_TYPE = PERL_MAGIC_shared_scalar(n)
- * MG_PTR = 0x8103c0 "" <<<< pointer to the shared element
+ * MG_PTR = 0x8103c0 "" <<<< pointer to the shared element
* MAGIC = 0x72bd18
* MG_TYPE = PERL_MAGIC_tiedelem(p)
- * MG_OBJ = 0x7136e0 <<<< ref to the tied object
+ * MG_OBJ = 0x7136e0 <<<< ref to the tied object
* SV = RV(0x7136f0) at 0x7136e0
* RV = 0x738660
* SV = PVMG(0x7ba278) at 0x738660 <<<< the tied object
* FLAGS = (OBJECT,IOK,pIOK)
- * IV = 8455064 <<<< pointer to the shared AV
+ * IV = 8455064 <<<< pointer to the shared AV
* STASH = 0x80ac30 "threads::shared::tie"
* TYPE = t
*
* Note that PERL_MAGIC_tiedelem(p) magic doesn't have a pointer to a
* shared SV in mg_ptr; instead this is used to store the hash key,
* if any, like normal tied elements. Note also that element SVs may have
- * pointers to both the shared aggregate and the shared element
+ * pointers to both the shared aggregate and the shared element.
*
*
* Userland locks:
*
- * if a shared variable is used as a perl-level lock or condition
+ * If a shared variable is used as a perl-level lock or condition
* variable, then PERL_MAGIC_ext magic is attached to the associated
- * *shared* SV, whose mg_ptr field points to a malloced structure
+ * *shared* SV, whose mg_ptr field points to a malloc'ed structure
* containing the necessary mutexes and condition variables.
*
* Nomenclature:
*
- * In this file, any variable name prefixed with 's', eg ssv, stmp or sobj,
- * usually represents a shared SV which correspondis to a private SV named
- * without the prefix, eg sv, tmp or obj.
+ * In this file, any variable name prefixed with 's' (e.g., ssv, stmp or sobj)
+ * usually represents a shared SV which corresponds to a private SV named
+ * without the prefix (e.g., sv, tmp or obj).
*/
#define PERL_NO_GET_CONTEXT
#include "EXTERN.h"
#include "perl.h"
#include "XSUB.h"
+#ifdef HAS_PPPORT_H
+# define NEED_vnewSVpvf
+# define NEED_warner
+# include "ppport.h"
+# include "shared.h"
+#endif
#ifdef USE_ITHREADS
+/* Magic signature(s) for mg_private to make PERL_MAGIC_ext magic safer */
+#define UL_MAGIC_SIG 0x554C /* UL = user lock */
+
/*
* The shared things need an intepreter to live in ...
*/
PerlInterpreter *PL_sharedsv_space; /* The shared sv space */
/* To access shared space we fake aTHX in this scope and thread's context */
-/* bug #24255: we include ENTER+SAVETMPS/FREETMPS+LEAVE with
- * SHARED_CONTEXT/CALLER_CONTEXT macros, so that any mortals etc created
+/* Bug #24255: We include ENTER+SAVETMPS/FREETMPS+LEAVE with
+ * SHARED_CONTEXT/CALLER_CONTEXT macros, so that any mortals, etc. created
* while in the shared interpreter context don't languish */
-#define SHARED_CONTEXT \
- STMT_START { \
- PERL_SET_CONTEXT((aTHX = PL_sharedsv_space)); \
- ENTER; \
- SAVETMPS; \
+#define SHARED_CONTEXT \
+ STMT_START { \
+ PERL_SET_CONTEXT((aTHX = PL_sharedsv_space)); \
+ ENTER; \
+ SAVETMPS; \
} STMT_END
/* So we need a way to switch back to the caller's context... */
/* So we declare _another_ copy of the aTHX variable ... */
#define dTHXc PerlInterpreter *caller_perl = aTHX
-/* and use it to switch back */
-#define CALLER_CONTEXT \
- STMT_START { \
- FREETMPS; \
- LEAVE; \
- PERL_SET_CONTEXT((aTHX = caller_perl)); \
+/* ... and use it to switch back */
+#define CALLER_CONTEXT \
+ STMT_START { \
+ FREETMPS; \
+ LEAVE; \
+ PERL_SET_CONTEXT((aTHX = caller_perl)); \
} STMT_END
/*
* Only one thread at a time is allowed to mess with shared space.
*/
-typedef struct
-{
- perl_mutex mutex;
- PerlInterpreter *owner;
- I32 locks;
- perl_cond cond;
+typedef struct {
+ perl_mutex mutex;
+ PerlInterpreter *owner;
+ I32 locks;
+ perl_cond cond;
#ifdef DEBUG_LOCKS
- char * file;
- int line;
+ char * file;
+ int line;
#endif
} recursive_lock_t;
-recursive_lock_t PL_sharedsv_lock; /* Mutex protecting the shared sv space */
+recursive_lock_t PL_sharedsv_lock; /* Mutex protecting the shared sv space */
void
recursive_lock_init(pTHX_ recursive_lock_t *lock)
recursive_lock_release(pTHX_ recursive_lock_t *lock)
{
MUTEX_LOCK(&lock->mutex);
- if (lock->owner != aTHX) {
- MUTEX_UNLOCK(&lock->mutex);
- }
- else {
- if (--lock->locks == 0) {
- lock->owner = NULL;
- COND_SIGNAL(&lock->cond);
- }
+ if (lock->owner == aTHX) {
+ if (--lock->locks == 0) {
+ lock->owner = NULL;
+ COND_SIGNAL(&lock->cond);
+ }
}
MUTEX_UNLOCK(&lock->mutex);
}
void
-recursive_lock_acquire(pTHX_ recursive_lock_t *lock,char *file,int line)
+recursive_lock_acquire(pTHX_ recursive_lock_t *lock, char *file, int line)
{
assert(aTHX);
MUTEX_LOCK(&lock->mutex);
if (lock->owner == aTHX) {
- lock->locks++;
- }
- else {
- while (lock->owner) {
+ lock->locks++;
+ } else {
+ while (lock->owner) {
#ifdef DEBUG_LOCKS
- Perl_warn(aTHX_ " %p waiting - owned by %p %s:%d\n",
- aTHX, lock->owner, lock->file, lock->line);
+ Perl_warn(aTHX_ " %p waiting - owned by %p %s:%d\n",
+ aTHX, lock->owner, lock->file, lock->line);
#endif
- COND_WAIT(&lock->cond,&lock->mutex);
+ COND_WAIT(&lock->cond,&lock->mutex);
}
- lock->locks = 1;
- lock->owner = aTHX;
+ lock->locks = 1;
+ lock->owner = aTHX;
#ifdef DEBUG_LOCKS
- lock->file = file;
- lock->line = line;
+ lock->file = file;
+ lock->line = line;
#endif
}
MUTEX_UNLOCK(&lock->mutex);
SAVEDESTRUCTOR_X(recursive_lock_release,lock);
}
-#define ENTER_LOCK STMT_START { \
- ENTER; \
- recursive_lock_acquire(aTHX_ &PL_sharedsv_lock, __FILE__, __LINE__); \
- } STMT_END
+#define ENTER_LOCK \
+ STMT_START { \
+ ENTER; \
+ recursive_lock_acquire(aTHX_ &PL_sharedsv_lock, __FILE__, __LINE__);\
+ } STMT_END
-/* the unlocking is done automatically at scope exit */
-#define LEAVE_LOCK LEAVE
+/* The unlocking is done automatically at scope exit */
+#define LEAVE_LOCK LEAVE
/* A common idiom is to acquire access and switch in ... */
-#define SHARED_EDIT STMT_START { \
- ENTER_LOCK; \
- SHARED_CONTEXT; \
- } STMT_END
+#define SHARED_EDIT \
+ STMT_START { \
+ ENTER_LOCK; \
+ SHARED_CONTEXT; \
+ } STMT_END
-/* then switch out and release access. */
-#define SHARED_RELEASE STMT_START { \
- CALLER_CONTEXT; \
- LEAVE_LOCK; \
- } STMT_END
+/* ... then switch out and release access. */
+#define SHARED_RELEASE \
+ STMT_START { \
+ CALLER_CONTEXT; \
+ LEAVE_LOCK; \
+ } STMT_END
-/* user-level locks:
+/* User-level locks:
This structure is attached (using ext magic) to any shared SV that
is used by user-level locking or condition code
*/
typedef struct {
- recursive_lock_t lock; /* for user-levl locks */
+ recursive_lock_t lock; /* For user-levl locks */
perl_cond user_cond; /* For user-level conditions */
} user_lock;
-/* magic used for attaching user_lock structs to shared SVs
+/* Magic used for attaching user_lock structs to shared SVs
The vtable used has just one entry - when the SV goes away
we free the memory for the above.
user_lock *ul = (user_lock *) mg->mg_ptr;
assert(aTHX == PL_sharedsv_space);
if (ul) {
- recursive_lock_destroy(aTHX_ &ul->lock);
- COND_DESTROY(&ul->user_cond);
- PerlMemShared_free(ul);
- mg->mg_ptr = NULL;
+ recursive_lock_destroy(aTHX_ &ul->lock);
+ COND_DESTROY(&ul->user_cond);
+ PerlMemShared_free(ul);
+ mg->mg_ptr = NULL;
}
- return 0;
+ return (0);
}
-MGVTBL sharedsv_uesrlock_vtbl = {
- 0, /* get */
- 0, /* set */
- 0, /* len */
- 0, /* clear */
- sharedsv_userlock_free, /* free */
- 0, /* copy */
- 0, /* dup */
- 0 /* local */
+MGVTBL sharedsv_userlock_vtbl = {
+ 0, /* get */
+ 0, /* set */
+ 0, /* len */
+ 0, /* clear */
+ sharedsv_userlock_free, /* free */
+ 0, /* copy */
+ 0, /* dup */
+#ifdef MGf_LOCAL
+ 0, /* local */
+#endif
};
-/* Access to shared things is heavily based on MAGIC - in mg.h/mg.c/sv.c sense */
+/*
+ * Access to shared things is heavily based on MAGIC
+ * - in mg.h/mg.c/sv.c sense
+ */
/* In any thread that has access to a shared thing there is a "proxy"
for it in its own space which has 'MAGIC' associated which accesses
the shared thing.
*/
-MGVTBL sharedsv_scalar_vtbl; /* scalars have this vtable */
-MGVTBL sharedsv_array_vtbl; /* hashes and arrays have this - like 'tie' */
-MGVTBL sharedsv_elem_vtbl; /* elements of hashes and arrays have this
- _AS WELL AS_ the scalar magic:
+extern MGVTBL sharedsv_scalar_vtbl; /* Scalars have this vtable */
+extern MGVTBL sharedsv_array_vtbl; /* Hashes and arrays have this
+ - like 'tie' */
+extern MGVTBL sharedsv_elem_vtbl; /* Elements of hashes and arrays have
+ this _AS WELL AS_ the scalar magic:
The sharedsv_elem_vtbl associates the element with the array/hash and
the sharedsv_scalar_vtbl associates it with the value
*/
-/* get shared aggregate SV pointed to by threads::shared::tie magic object */
+/* Get shared aggregate SV pointed to by threads::shared::tie magic object */
STATIC SV *
S_sharedsv_from_obj(pTHX_ SV *sv)
{
- return SvROK(sv) ? INT2PTR(SV *, SvIV(SvRV(sv))) : NULL;
+ return ((SvROK(sv)) ? INT2PTR(SV *, SvIV(SvRV(sv))) : NULL);
}
/* Return the user_lock structure (if any) associated with a shared SV.
- * If create is true, create one if it doesn't exist */
-
+ * If create is true, create one if it doesn't exist
+ */
STATIC user_lock *
S_get_userlock(pTHX_ SV* ssv, bool create)
{
user_lock *ul = NULL;
assert(ssv);
- /* XXX redsign the storage of user locks so we dont need a global
+ /* XXX Redesign the storage of user locks so we don't need a global
* lock to access them ???? DAPM */
ENTER_LOCK;
- mg = mg_find(ssv, PERL_MAGIC_ext);
- if (mg)
- ul = (user_lock*)(mg->mg_ptr);
- else if (create) {
- dTHXc;
- SHARED_CONTEXT;
- ul = (user_lock *) PerlMemShared_malloc(sizeof(user_lock));
- Zero(ul, 1, user_lock);
- /* attach to shared SV using ext magic */
- sv_magicext(ssv, NULL, PERL_MAGIC_ext, &sharedsv_uesrlock_vtbl,
- (char *)ul, 0);
- recursive_lock_init(aTHX_ &ul->lock);
- COND_INIT(&ul->user_cond);
- CALLER_CONTEXT;
+
+ /* Version of mg_find that also checks the private signature */
+ for (mg = SvMAGIC(ssv); mg; mg = mg->mg_moremagic) {
+ if ((mg->mg_type == PERL_MAGIC_ext) &&
+ (mg->mg_private == UL_MAGIC_SIG))
+ {
+ break;
+ }
+ }
+
+ if (mg) {
+ ul = (user_lock*)(mg->mg_ptr);
+ } else if (create) {
+ dTHXc;
+ SHARED_CONTEXT;
+ ul = (user_lock *) PerlMemShared_malloc(sizeof(user_lock));
+ Zero(ul, 1, user_lock);
+ /* Attach to shared SV using ext magic */
+ mg = sv_magicext(ssv, NULL, PERL_MAGIC_ext, &sharedsv_userlock_vtbl,
+ (char *)ul, 0);
+ mg->mg_private = UL_MAGIC_SIG; /* Set private signature */
+ recursive_lock_init(aTHX_ &ul->lock);
+ COND_INIT(&ul->user_cond);
+ CALLER_CONTEXT;
}
LEAVE_LOCK;
- return ul;
+ return (ul);
}
-=for apidoc sharedsv_find
-
-Given a private side SV tries to find if the SV has a shared backend,
-by looking for the magic.
-
-=cut
-
+/* Given a private side SV tries to find if the SV has a shared backend,
+ * by looking for the magic.
+ */
SV *
Perl_sharedsv_find(pTHX_ SV *sv)
{
MAGIC *mg;
if (SvTYPE(sv) >= SVt_PVMG) {
- switch(SvTYPE(sv)) {
- case SVt_PVAV:
- case SVt_PVHV:
- if ((mg = mg_find(sv, PERL_MAGIC_tied))
- && mg->mg_virtual == &sharedsv_array_vtbl) {
- return (SV *) mg->mg_ptr;
- }
- break;
- default:
- /* This should work for elements as well as they
- * have scalar magic as well as their element magic
- */
- if ((mg = mg_find(sv, PERL_MAGIC_shared_scalar))
- && mg->mg_virtual == &sharedsv_scalar_vtbl) {
- return (SV *) mg->mg_ptr;
- }
- break;
- }
+ switch(SvTYPE(sv)) {
+ case SVt_PVAV:
+ case SVt_PVHV:
+ if ((mg = mg_find(sv, PERL_MAGIC_tied))
+ && mg->mg_virtual == &sharedsv_array_vtbl) {
+ return ((SV *)mg->mg_ptr);
+ }
+ break;
+ default:
+ /* This should work for elements as well as they
+ * have scalar magic as well as their element magic
+ */
+ if ((mg = mg_find(sv, PERL_MAGIC_shared_scalar))
+ && mg->mg_virtual == &sharedsv_scalar_vtbl) {
+ return ((SV *)mg->mg_ptr);
+ }
+ break;
+ }
}
/* Just for tidyness of API also handle tie objects */
if (SvROK(sv) && sv_derived_from(sv, "threads::shared::tie")) {
- return S_sharedsv_from_obj(aTHX_ sv);
+ return (S_sharedsv_from_obj(aTHX_ sv));
}
- return NULL;
+ return (NULL);
}
-/* associate a private SV with a shared SV by pointing the appropriate
- * magics at it. Assumes lock is held */
-
+/* Associate a private SV with a shared SV by pointing the appropriate
+ * magics at it.
+ * Assumes lock is held.
+ */
void
Perl_sharedsv_associate(pTHX_ SV *sv, SV *ssv)
{
- dTHXc;
MAGIC *mg = 0;
/* If we are asked for any private ops we need a thread */
switch(SvTYPE(sv)) {
case SVt_PVAV:
case SVt_PVHV:
- if (!(mg = mg_find(sv, PERL_MAGIC_tied))
- || mg->mg_virtual != &sharedsv_array_vtbl
- || (SV*) mg->mg_ptr != ssv)
- {
- SV *obj = newSV(0);
- sv_setref_iv(obj, "threads::shared::tie",PTR2IV(ssv));
- if (mg) {
- sv_unmagic(sv, PERL_MAGIC_tied);
- }
- mg = sv_magicext(sv, obj, PERL_MAGIC_tied, &sharedsv_array_vtbl,
- (char *) ssv, 0);
- mg->mg_flags |= (MGf_COPY|MGf_DUP);
- SvREFCNT_inc(ssv);
- SvREFCNT_dec(obj);
- }
- break;
+ if (!(mg = mg_find(sv, PERL_MAGIC_tied))
+ || mg->mg_virtual != &sharedsv_array_vtbl
+ || (SV*) mg->mg_ptr != ssv)
+ {
+ SV *obj = newSV(0);
+ sv_setref_iv(obj, "threads::shared::tie", PTR2IV(ssv));
+ if (mg) {
+ sv_unmagic(sv, PERL_MAGIC_tied);
+ }
+ mg = sv_magicext(sv, obj, PERL_MAGIC_tied, &sharedsv_array_vtbl,
+ (char *)ssv, 0);
+ mg->mg_flags |= (MGf_COPY|MGf_DUP);
+ SvREFCNT_inc_void(ssv);
+ SvREFCNT_dec(obj);
+ }
+ break;
default:
- if ((SvTYPE(sv) < SVt_PVMG)
- || !(mg = mg_find(sv, PERL_MAGIC_shared_scalar))
- || mg->mg_virtual != &sharedsv_scalar_vtbl
- || (SV*) mg->mg_ptr != ssv)
- {
- if (mg) {
- sv_unmagic(sv, PERL_MAGIC_shared_scalar);
- }
- mg = sv_magicext(sv, Nullsv, PERL_MAGIC_shared_scalar,
- &sharedsv_scalar_vtbl, (char *)ssv, 0);
- mg->mg_flags |= (MGf_DUP|MGf_LOCAL);
- SvREFCNT_inc(ssv);
- }
- break;
+ if ((SvTYPE(sv) < SVt_PVMG)
+ || !(mg = mg_find(sv, PERL_MAGIC_shared_scalar))
+ || mg->mg_virtual != &sharedsv_scalar_vtbl
+ || (SV*) mg->mg_ptr != ssv)
+ {
+ if (mg) {
+ sv_unmagic(sv, PERL_MAGIC_shared_scalar);
+ }
+ mg = sv_magicext(sv, Nullsv, PERL_MAGIC_shared_scalar,
+ &sharedsv_scalar_vtbl, (char *)ssv, 0);
+ mg->mg_flags |= (MGf_DUP
+#ifdef MGf_LOCAL
+ |MGf_LOCAL
+#endif
+ );
+ SvREFCNT_inc_void(ssv);
+ }
+ break;
}
+
assert ( Perl_sharedsv_find(aTHX_ sv) == ssv );
}
/* Given a private SV, create and return an associated shared SV.
- * Assumes lock is held */
-
+ * Assumes lock is held.
+ */
STATIC SV *
S_sharedsv_new_shared(pTHX_ SV *sv)
{
SHARED_CONTEXT;
ssv = newSV(0);
- SvREFCNT(ssv) = 0; /* will be upped to 1 by Perl_sharedsv_associate */
+ SvREFCNT(ssv) = 0; /* Will be upped to 1 by Perl_sharedsv_associate */
sv_upgrade(ssv, SvTYPE(sv));
CALLER_CONTEXT;
Perl_sharedsv_associate(aTHX_ sv, ssv);
- return ssv;
+ return (ssv);
}
/* Given a shared SV, create and return an associated private SV.
- * Assumes lock is held */
-
+ * Assumes lock is held.
+ */
STATIC SV *
S_sharedsv_new_private(pTHX_ SV *ssv)
{
sv = newSV(0);
sv_upgrade(sv, SvTYPE(ssv));
Perl_sharedsv_associate(aTHX_ sv, ssv);
- return sv;
+ return (sv);
}
-/* a threadsafe version of SvREFCNT_dec(ssv) */
+/* A threadsafe version of SvREFCNT_dec(ssv) */
STATIC void
S_sharedsv_dec(pTHX_ SV* ssv)
{
- if (!ssv)
- return;
+ if (! ssv)
+ return;
ENTER_LOCK;
if (SvREFCNT(ssv) > 1) {
- /* no side effects, so can do it lightweight */
- SvREFCNT_dec(ssv);
- }
- else {
- dTHXc;
- SHARED_CONTEXT;
- SvREFCNT_dec(ssv);
- CALLER_CONTEXT;
+ /* No side effects, so can do it lightweight */
+ SvREFCNT_dec(ssv);
+ } else {
+ dTHXc;
+ SHARED_CONTEXT;
+ SvREFCNT_dec(ssv);
+ CALLER_CONTEXT;
}
LEAVE_LOCK;
}
-/* implements Perl-level share() and :shared */
+
+/* Implements Perl-level share() and :shared */
void
Perl_sharedsv_share(pTHX_ SV *sv)
{
switch(SvTYPE(sv)) {
case SVt_PVGV:
- Perl_croak(aTHX_ "Cannot share globs yet");
- break;
+ Perl_croak(aTHX_ "Cannot share globs yet");
+ break;
case SVt_PVCV:
- Perl_croak(aTHX_ "Cannot share subs yet");
- break;
+ Perl_croak(aTHX_ "Cannot share subs yet");
+ break;
default:
- ENTER_LOCK;
- (void) S_sharedsv_new_shared(aTHX_ sv);
- LEAVE_LOCK;
- SvSETMAGIC(sv);
- break;
+ ENTER_LOCK;
+ (void) S_sharedsv_new_shared(aTHX_ sv);
+ LEAVE_LOCK;
+ SvSETMAGIC(sv);
+ break;
+ }
+}
+
+
+#ifdef WIN32
+/* Number of milliseconds from 1/1/1601 to 1/1/1970 */
+#define EPOCH_BIAS 11644473600000.
+
+/* Returns relative time in milliseconds. (Adapted from Time::HiRes.) */
+STATIC DWORD
+S_abs_2_rel_milli(double abs)
+{
+ double rel;
+
+ /* Get current time (in units of 100 nanoseconds since 1/1/1601) */
+ union {
+ FILETIME ft;
+ __int64 i64; /* 'signed' to keep compilers happy */
+ } now;
+
+ GetSystemTimeAsFileTime(&now.ft);
+
+ /* Relative time in milliseconds */
+ rel = (abs * 1000.) - (((double)now.i64 / 10000.) - EPOCH_BIAS);
+ if (rel <= 0.0) {
+ return (0);
}
+ return (DWORD)rel;
}
-#if defined(WIN32) || defined(OS2)
-# define ABS2RELMILLI(abs) \
+#else
+# if defined(OS2)
+# define ABS2RELMILLI(abs) \
do { \
abs -= (double)time(NULL); \
if (abs > 0) { abs *= 1000; } \
else { abs = 0; } \
} while (0)
-#endif /* WIN32 || OS2 */
+# endif /* OS2 */
+#endif /* WIN32 */
-/* do OS-specific condition timed wait */
+/* Do OS-specific condition timed wait */
bool
Perl_sharedsv_cond_timedwait(perl_cond *cond, perl_mutex *mut, double abs)
# ifdef WIN32
int got_it = 0;
- ABS2RELMILLI(abs);
-
cond->waiters++;
MUTEX_UNLOCK(mut);
/* See comments in win32/win32thread.h COND_WAIT vis-a-vis race */
- switch (WaitForSingleObject(cond->sem, (DWORD)abs)) {
+ switch (WaitForSingleObject(cond->sem, S_abs_2_rel_milli(abs))) {
case WAIT_OBJECT_0: got_it = 1; break;
case WAIT_TIMEOUT: break;
default:
}
MUTEX_LOCK(mut);
cond->waiters--;
- return got_it;
+ return (got_it);
# else
# ifdef OS2
int rc, got_it = 0;
croak_with_os2error("panic: cond_timedwait");
if (rc == ERROR_INTERRUPT) errno = EINTR;
MUTEX_LOCK(mut);
- return got_it;
-# else /* hope you're I_PTHREAD! */
+ return (got_it);
+# else /* Hope you're I_PTHREAD! */
struct timespec ts;
int got_it = 0;
case ETIMEDOUT: break;
#ifdef OEMVS
case -1:
- if (errno == ETIMEDOUT || errno == EAGAIN)
- break;
+ if (errno == ETIMEDOUT || errno == EAGAIN)
+ break;
#endif
default:
Perl_croak_nocontext("panic: cond_timedwait");
break;
}
- return got_it;
+ return (got_it);
# endif /* OS2 */
# endif /* WIN32 */
#endif /* NETWARE || FAKE_THREADS || I_MACH_CTHREADS */
}
-/* given a shared RV, copy it's value to a private RV, also coping the
+/* Given a shared RV, copy it's value to a private RV, also copying the
* object status of the referent.
* If the private side is already an appropriate RV->SV combination, keep
* it if possible.
*/
-
STATIC void
S_get_RV(pTHX_ SV *sv, SV *ssv) {
SV *sobj = SvRV(ssv);
SV *obj;
- if ( ! ( SvROK(sv)
- && ((obj = SvRV(sv)))
- && (Perl_sharedsv_find(aTHX_ obj) == sobj)
- && (SvTYPE(obj) == SvTYPE(sobj))
- )
- )
+ if (! (SvROK(sv) &&
+ ((obj = SvRV(sv))) &&
+ (Perl_sharedsv_find(aTHX_ obj) == sobj) &&
+ (SvTYPE(obj) == SvTYPE(sobj))))
{
- /* can't reuse obj */
- if (SvROK(sv)) {
- SvREFCNT_dec(SvRV(sv));
- }
- else {
- assert(SvTYPE(sv) >= SVt_RV);
- sv_setsv_nomg(sv, &PL_sv_undef);
- SvROK_on(sv);
- }
- obj = S_sharedsv_new_private(aTHX_ SvRV(ssv));
- SvRV_set(sv, obj);
+ /* Can't reuse obj */
+ if (SvROK(sv)) {
+ SvREFCNT_dec(SvRV(sv));
+ } else {
+ assert(SvTYPE(sv) >= SVt_RV);
+ sv_setsv_nomg(sv, &PL_sv_undef);
+ SvROK_on(sv);
+ }
+ obj = S_sharedsv_new_private(aTHX_ SvRV(ssv));
+ SvRV_set(sv, obj);
}
if (SvOBJECT(obj)) {
- /* remove any old blessing */
- SvREFCNT_dec(SvSTASH(obj));
- SvOBJECT_off(obj);
+ /* Remove any old blessing */
+ SvREFCNT_dec(SvSTASH(obj));
+ SvOBJECT_off(obj);
}
if (SvOBJECT(sobj)) {
- /* add any new old blessing */
- STRLEN len;
- char* stash_ptr = SvPV((SV*) SvSTASH(sobj), len);
- HV* stash = gv_stashpvn(stash_ptr, len, TRUE);
- SvOBJECT_on(obj);
- SvSTASH_set(obj, (HV*)SvREFCNT_inc(stash));
+ /* Add any new old blessing */
+ STRLEN len;
+ char* stash_ptr = SvPV((SV*) SvSTASH(sobj), len);
+ HV* stash = gv_stashpvn(stash_ptr, len, TRUE);
+ SvOBJECT_on(obj);
+ SvSTASH_set(obj, (HV*)SvREFCNT_inc(stash));
}
}
/* ------------ PERL_MAGIC_shared_scalar(n) functions -------------- */
-/* get magic for PERL_MAGIC_shared_scalar(n) */
+/* Get magic for PERL_MAGIC_shared_scalar(n) */
int
sharedsv_scalar_mg_get(pTHX_ SV *sv, MAGIC *mg)
ENTER_LOCK;
if (SvROK(ssv)) {
- S_get_RV(aTHX_ sv, ssv);
- }
- else {
- sv_setsv_nomg(sv, ssv);
+ S_get_RV(aTHX_ sv, ssv);
+ } else {
+ sv_setsv_nomg(sv, ssv);
}
LEAVE_LOCK;
- return 0;
+ return (0);
}
-/* copy the contents of a private SV to a shared SV:
- * used by various mg_set()-type functions.
- * Assumes lock is held */
-
+/* Copy the contents of a private SV to a shared SV.
+ * Used by various mg_set()-type functions.
+ * Assumes lock is held.
+ */
void
sharedsv_scalar_store(pTHX_ SV *sv, SV *ssv)
{
assert(PL_sharedsv_lock.owner == aTHX);
if (SvROK(sv)) {
- SV *obj = SvRV(sv);
- SV *sobj = Perl_sharedsv_find(aTHX_ obj);
- if (sobj) {
- SHARED_CONTEXT;
- SvUPGRADE(ssv, SVt_RV);
- sv_setsv_nomg(ssv, &PL_sv_undef);
-
- SvRV_set(ssv, SvREFCNT_inc(sobj));
- SvROK_on(ssv);
- if(SvOBJECT(obj)) {
- SV* fake_stash = newSVpv(HvNAME_get(SvSTASH(obj)),0);
- SvOBJECT_on(sobj);
- SvSTASH_set(sobj, (HV*)fake_stash);
- }
- CALLER_CONTEXT;
- }
- else {
- allowed = FALSE;
- }
- }
- else {
+ SV *obj = SvRV(sv);
+ SV *sobj = Perl_sharedsv_find(aTHX_ obj);
+ if (sobj) {
+ SHARED_CONTEXT;
+ (void)SvUPGRADE(ssv, SVt_RV);
+ sv_setsv_nomg(ssv, &PL_sv_undef);
+
+ SvRV_set(ssv, SvREFCNT_inc(sobj));
+ SvROK_on(ssv);
+ if (SvOBJECT(sobj)) {
+ /* Remove any old blessing */
+ SvREFCNT_dec(SvSTASH(sobj));
+ SvOBJECT_off(sobj);
+ }
+ if (SvOBJECT(obj)) {
+ SV* fake_stash = newSVpv(HvNAME_get(SvSTASH(obj)),0);
+ SvOBJECT_on(sobj);
+ SvSTASH_set(sobj, (HV*)fake_stash);
+ }
+ CALLER_CONTEXT;
+ } else {
+ allowed = FALSE;
+ }
+ } else {
SvTEMP_off(sv);
- SHARED_CONTEXT;
- sv_setsv_nomg(ssv, sv);
- if(SvOBJECT(sv)) {
- SV* fake_stash = newSVpv(HvNAME_get(SvSTASH(sv)),0);
- SvOBJECT_on(ssv);
- SvSTASH_set(ssv, (HV*)fake_stash);
- }
- CALLER_CONTEXT;
+ SHARED_CONTEXT;
+ sv_setsv_nomg(ssv, sv);
+ if (SvOBJECT(ssv)) {
+ /* Remove any old blessing */
+ SvREFCNT_dec(SvSTASH(ssv));
+ SvOBJECT_off(ssv);
+ }
+ if (SvOBJECT(sv)) {
+ SV* fake_stash = newSVpv(HvNAME_get(SvSTASH(sv)),0);
+ SvOBJECT_on(ssv);
+ SvSTASH_set(ssv, (HV*)fake_stash);
+ }
+ CALLER_CONTEXT;
}
if (!allowed) {
- Perl_croak(aTHX_ "Invalid value for shared scalar");
+ Perl_croak(aTHX_ "Invalid value for shared scalar");
}
}
-/* set magic for PERL_MAGIC_shared_scalar(n) */
+/* Set magic for PERL_MAGIC_shared_scalar(n) */
int
sharedsv_scalar_mg_set(pTHX_ SV *sv, MAGIC *mg)
assert(ssv);
ENTER_LOCK;
if (SvTYPE(ssv) < SvTYPE(sv)) {
- dTHXc;
- SHARED_CONTEXT;
- sv_upgrade(ssv, SvTYPE(sv));
- CALLER_CONTEXT;
+ dTHXc;
+ SHARED_CONTEXT;
+ sv_upgrade(ssv, SvTYPE(sv));
+ CALLER_CONTEXT;
}
sharedsv_scalar_store(aTHX_ sv, ssv);
LEAVE_LOCK;
- return 0;
+ return (0);
}
-/* free magic for PERL_MAGIC_shared_scalar(n) */
+/* Free magic for PERL_MAGIC_shared_scalar(n) */
int
sharedsv_scalar_mg_free(pTHX_ SV *sv, MAGIC *mg)
{
S_sharedsv_dec(aTHX_ (SV*)mg->mg_ptr);
- return 0;
+ return (0);
}
/*
int
sharedsv_scalar_mg_dup(pTHX_ MAGIC *mg, CLONE_PARAMS *param)
{
- SvREFCNT_inc(mg->mg_ptr);
- return 0;
+ SvREFCNT_inc_void(mg->mg_ptr);
+ return (0);
}
+#ifdef MGf_LOCAL
/*
* Called during local $shared
*/
MAGIC *nmg;
SV *ssv = (SV *) mg->mg_ptr;
if (ssv) {
- ENTER_LOCK;
- SvREFCNT_inc(ssv);
- LEAVE_LOCK;
+ ENTER_LOCK;
+ SvREFCNT_inc_void(ssv);
+ LEAVE_LOCK;
}
nmg = sv_magicext(nsv, mg->mg_obj, mg->mg_type, mg->mg_virtual,
- mg->mg_ptr, mg->mg_len);
+ mg->mg_ptr, mg->mg_len);
nmg->mg_flags = mg->mg_flags;
nmg->mg_private = mg->mg_private;
- return 0;
+ return (0);
}
+#endif
MGVTBL sharedsv_scalar_vtbl = {
- sharedsv_scalar_mg_get, /* get */
- sharedsv_scalar_mg_set, /* set */
- 0, /* len */
- 0, /* clear */
- sharedsv_scalar_mg_free, /* free */
- 0, /* copy */
- sharedsv_scalar_mg_dup, /* dup */
- sharedsv_scalar_mg_local /* local */
+ sharedsv_scalar_mg_get, /* get */
+ sharedsv_scalar_mg_set, /* set */
+ 0, /* len */
+ 0, /* clear */
+ sharedsv_scalar_mg_free, /* free */
+ 0, /* copy */
+ sharedsv_scalar_mg_dup, /* dup */
+#ifdef MGf_LOCAL
+ sharedsv_scalar_mg_local, /* local */
+#endif
};
/* ------------ PERL_MAGIC_tiedelem(p) functions -------------- */
-/* get magic for PERL_MAGIC_tiedelem(p) */
+/* Get magic for PERL_MAGIC_tiedelem(p) */
int
sharedsv_elem_mg_FETCH(pTHX_ SV *sv, MAGIC *mg)
ENTER_LOCK;
if (SvTYPE(saggregate) == SVt_PVAV) {
- assert ( mg->mg_ptr == 0 );
- SHARED_CONTEXT;
- svp = av_fetch((AV*) saggregate, mg->mg_len, 0);
- }
- else {
- char *key = mg->mg_ptr;
- STRLEN len = mg->mg_len;
- assert ( mg->mg_ptr != 0 );
- if (mg->mg_len == HEf_SVKEY) {
- key = SvPV((SV *) mg->mg_ptr, len);
- }
- SHARED_CONTEXT;
- svp = hv_fetch((HV*) saggregate, key, len, 0);
+ assert ( mg->mg_ptr == 0 );
+ SHARED_CONTEXT;
+ svp = av_fetch((AV*) saggregate, mg->mg_len, 0);
+ } else {
+ char *key = mg->mg_ptr;
+ STRLEN len = mg->mg_len;
+ assert ( mg->mg_ptr != 0 );
+ if (mg->mg_len == HEf_SVKEY) {
+ key = SvPV((SV *) mg->mg_ptr, len);
+ }
+ SHARED_CONTEXT;
+ svp = hv_fetch((HV*) saggregate, key, len, 0);
}
CALLER_CONTEXT;
if (svp) {
- /* Exists in the array */
- if (SvROK(*svp)) {
- S_get_RV(aTHX_ sv, *svp);
- }
- else {
- /* XXX can this branch ever happen? DAPM */
- /* XXX assert("no such branch"); */
- Perl_sharedsv_associate(aTHX_ sv, *svp);
- sv_setsv(sv, *svp);
- }
- }
- else {
- /* Not in the array */
- sv_setsv(sv, &PL_sv_undef);
+ /* Exists in the array */
+ if (SvROK(*svp)) {
+ S_get_RV(aTHX_ sv, *svp);
+ } else {
+ /* XXX Can this branch ever happen? DAPM */
+ /* XXX assert("no such branch"); */
+ Perl_sharedsv_associate(aTHX_ sv, *svp);
+ sv_setsv(sv, *svp);
+ }
+ } else {
+ /* Not in the array */
+ sv_setsv(sv, &PL_sv_undef);
}
LEAVE_LOCK;
- return 0;
+ return (0);
}
-/* set magic for PERL_MAGIC_tiedelem(p) */
+/* Set magic for PERL_MAGIC_tiedelem(p) */
int
sharedsv_elem_mg_STORE(pTHX_ SV *sv, MAGIC *mg)
ENTER_LOCK;
assert(saggregate);
if (SvTYPE(saggregate) == SVt_PVAV) {
- assert ( mg->mg_ptr == 0 );
- SHARED_CONTEXT;
- svp = av_fetch((AV*) saggregate, mg->mg_len, 1);
- }
- else {
- char *key = mg->mg_ptr;
- STRLEN len = mg->mg_len;
- assert ( mg->mg_ptr != 0 );
- if (mg->mg_len == HEf_SVKEY)
- key = SvPV((SV *) mg->mg_ptr, len);
- SHARED_CONTEXT;
- svp = hv_fetch((HV*) saggregate, key, len, 1);
+ assert ( mg->mg_ptr == 0 );
+ SHARED_CONTEXT;
+ svp = av_fetch((AV*) saggregate, mg->mg_len, 1);
+ } else {
+ char *key = mg->mg_ptr;
+ STRLEN len = mg->mg_len;
+ assert ( mg->mg_ptr != 0 );
+ if (mg->mg_len == HEf_SVKEY)
+ key = SvPV((SV *) mg->mg_ptr, len);
+ SHARED_CONTEXT;
+ svp = hv_fetch((HV*) saggregate, key, len, 1);
}
CALLER_CONTEXT;
Perl_sharedsv_associate(aTHX_ sv, *svp);
sharedsv_scalar_store(aTHX_ sv, *svp);
LEAVE_LOCK;
- return 0;
+ return (0);
}
-/* clear magic for PERL_MAGIC_tiedelem(p) */
+/* Clear magic for PERL_MAGIC_tiedelem(p) */
int
sharedsv_elem_mg_DELETE(pTHX_ SV *sv, MAGIC *mg)
ENTER_LOCK;
sharedsv_elem_mg_FETCH(aTHX_ sv, mg);
if ((shmg = mg_find(sv, PERL_MAGIC_shared_scalar)))
- sharedsv_scalar_mg_get(aTHX_ sv, shmg);
+ sharedsv_scalar_mg_get(aTHX_ sv, shmg);
if (SvTYPE(saggregate) == SVt_PVAV) {
- SHARED_CONTEXT;
- av_delete((AV*) saggregate, mg->mg_len, G_DISCARD);
- }
- else {
- char *key = mg->mg_ptr;
- STRLEN len = mg->mg_len;
- assert ( mg->mg_ptr != 0 );
- if (mg->mg_len == HEf_SVKEY)
- key = SvPV((SV *) mg->mg_ptr, len);
- SHARED_CONTEXT;
- hv_delete((HV*) saggregate, key, len, G_DISCARD);
+ SHARED_CONTEXT;
+ av_delete((AV*) saggregate, mg->mg_len, G_DISCARD);
+ } else {
+ char *key = mg->mg_ptr;
+ STRLEN len = mg->mg_len;
+ assert ( mg->mg_ptr != 0 );
+ if (mg->mg_len == HEf_SVKEY)
+ key = SvPV((SV *) mg->mg_ptr, len);
+ SHARED_CONTEXT;
+ hv_delete((HV*) saggregate, key, len, G_DISCARD);
}
CALLER_CONTEXT;
LEAVE_LOCK;
- return 0;
+ return (0);
}
/* Called during cloning of PERL_MAGIC_tiedelem(p) magic in new
int
sharedsv_elem_mg_dup(pTHX_ MAGIC *mg, CLONE_PARAMS *param)
{
- SvREFCNT_inc(S_sharedsv_from_obj(aTHX_ mg->mg_obj));
+ SvREFCNT_inc_void(S_sharedsv_from_obj(aTHX_ mg->mg_obj));
assert(mg->mg_flags & MGf_DUP);
- return 0;
+ return (0);
}
MGVTBL sharedsv_elem_vtbl = {
- sharedsv_elem_mg_FETCH, /* get */
- sharedsv_elem_mg_STORE, /* set */
- 0, /* len */
- sharedsv_elem_mg_DELETE, /* clear */
- 0, /* free */
- 0, /* copy */
- sharedsv_elem_mg_dup, /* dup */
- 0 /* local */
+ sharedsv_elem_mg_FETCH, /* get */
+ sharedsv_elem_mg_STORE, /* set */
+ 0, /* len */
+ sharedsv_elem_mg_DELETE, /* clear */
+ 0, /* free */
+ 0, /* copy */
+ sharedsv_elem_mg_dup, /* dup */
+#ifdef MGf_LOCAL
+ 0, /* local */
+#endif
};
/* ------------ PERL_MAGIC_tied(P) functions -------------- */
-/* len magic for PERL_MAGIC_tied(P) */
+/* Len magic for PERL_MAGIC_tied(P) */
U32
sharedsv_array_mg_FETCHSIZE(pTHX_ SV *sv, MAGIC *mg)
U32 val;
SHARED_EDIT;
if (SvTYPE(ssv) == SVt_PVAV) {
- val = av_len((AV*) ssv);
- }
- else {
- /* not actually defined by tie API but ... */
- val = HvKEYS((HV*) ssv);
+ val = av_len((AV*) ssv);
+ } else {
+ /* Not actually defined by tie API but ... */
+ val = HvKEYS((HV*) ssv);
}
SHARED_RELEASE;
- return val;
+ return (val);
}
-/* clear magic for PERL_MAGIC_tied(P) */
+/* Clear magic for PERL_MAGIC_tied(P) */
int
sharedsv_array_mg_CLEAR(pTHX_ SV *sv, MAGIC *mg)
SV *ssv = (SV *) mg->mg_ptr;
SHARED_EDIT;
if (SvTYPE(ssv) == SVt_PVAV) {
- av_clear((AV*) ssv);
- }
- else {
- hv_clear((HV*) ssv);
+ av_clear((AV*) ssv);
+ } else {
+ hv_clear((HV*) ssv);
}
SHARED_RELEASE;
- return 0;
+ return (0);
}
-/* free magic for PERL_MAGIC_tied(P) */
+/* Free magic for PERL_MAGIC_tied(P) */
int
sharedsv_array_mg_free(pTHX_ SV *sv, MAGIC *mg)
{
S_sharedsv_dec(aTHX_ (SV*)mg->mg_ptr);
- return 0;
+ return (0);
}
/*
- * copy magic for PERL_MAGIC_tied(P)
+ * Copy magic for PERL_MAGIC_tied(P)
* This is called when perl is about to access an element of
* the array -
*/
int
sharedsv_array_mg_copy(pTHX_ SV *sv, MAGIC* mg,
- SV *nsv, const char *name, int namlen)
+ SV *nsv, const char *name, int namlen)
{
MAGIC *nmg = sv_magicext(nsv,mg->mg_obj,
- toLOWER(mg->mg_type),&sharedsv_elem_vtbl,
- name, namlen);
+ toLOWER(mg->mg_type),&sharedsv_elem_vtbl,
+ name, namlen);
nmg->mg_flags |= MGf_DUP;
- return 1;
+ return (1);
}
/* Called during cloning of PERL_MAGIC_tied(P) magic in new thread */
int
sharedsv_array_mg_dup(pTHX_ MAGIC *mg, CLONE_PARAMS *param)
{
- SvREFCNT_inc((SV*)mg->mg_ptr);
+ SvREFCNT_inc_void((SV*)mg->mg_ptr);
assert(mg->mg_flags & MGf_DUP);
- return 0;
+ return (0);
}
MGVTBL sharedsv_array_vtbl = {
- 0, /* get */
- 0, /* set */
- sharedsv_array_mg_FETCHSIZE, /* len */
- sharedsv_array_mg_CLEAR, /* clear */
- sharedsv_array_mg_free, /* free */
- sharedsv_array_mg_copy, /* copy */
- sharedsv_array_mg_dup, /* dup */
- 0 /* local */
+ 0, /* get */
+ 0, /* set */
+ sharedsv_array_mg_FETCHSIZE,/* len */
+ sharedsv_array_mg_CLEAR, /* clear */
+ sharedsv_array_mg_free, /* free */
+ sharedsv_array_mg_copy, /* copy */
+ sharedsv_array_mg_dup, /* dup */
+#ifdef MGf_LOCAL
+ 0, /* local */
+#endif
};
-=for apidoc sharedsv_unlock
-Recursively unlocks a shared sv.
-
-=cut
+/* Recursively unlocks a shared sv. */
void
Perl_sharedsv_unlock(pTHX_ SV *ssv)
recursive_lock_release(aTHX_ &ul->lock);
}
-=for apidoc sharedsv_lock
-
-Recursive locks on a sharedsv.
-Locks are dynamically scoped at the level of the first lock.
-
-=cut
+/* Recursive locks on a sharedsv.
+ * Locks are dynamically scoped at the level of the first lock.
+ */
void
Perl_sharedsv_lock(pTHX_ SV *ssv)
{
user_lock *ul;
- if (!ssv)
- return;
+ if (! ssv)
+ return;
ul = S_get_userlock(aTHX_ ssv, 1);
recursive_lock_acquire(aTHX_ &ul->lock, __FILE__, __LINE__);
}
-/* handles calls from lock() builtin via PL_lockhook */
+/* Handles calls from lock() builtin via PL_lockhook */
void
Perl_sharedsv_locksv(pTHX_ SV *sv)
{
SV *ssv;
- if(SvROK(sv))
- sv = SvRV(sv);
+ if (SvROK(sv))
+ sv = SvRV(sv);
ssv = Perl_sharedsv_find(aTHX_ sv);
- if(!ssv)
+ if (!ssv)
croak("lock can only be used on shared values");
Perl_sharedsv_lock(aTHX_ ssv);
}
-=head1 Shared SV Functions
-=for apidoc sharedsv_init
-
-Saves a space for keeping SVs wider than an interpreter,
-
-=cut
+/* Saves a space for keeping SVs wider than an interpreter. */
void
Perl_sharedsv_init(pTHX)
{
- dTHXc;
- /* This pair leaves us in shared context ... */
- PL_sharedsv_space = perl_alloc();
- perl_construct(PL_sharedsv_space);
- CALLER_CONTEXT;
- recursive_lock_init(aTHX_ &PL_sharedsv_lock);
- PL_lockhook = &Perl_sharedsv_locksv;
- PL_sharehook = &Perl_sharedsv_share;
+ dTHXc;
+ /* This pair leaves us in shared context ... */
+ PL_sharedsv_space = perl_alloc();
+ perl_construct(PL_sharedsv_space);
+ CALLER_CONTEXT;
+ recursive_lock_init(aTHX_ &PL_sharedsv_lock);
+ PL_lockhook = &Perl_sharedsv_locksv;
+ PL_sharehook = &Perl_sharedsv_share;
}
#endif /* USE_ITHREADS */
-MODULE = threads::shared PACKAGE = threads::shared::tie
+MODULE = threads::shared PACKAGE = threads::shared::tie
PROTOTYPES: DISABLE
void
PUSH(SV *obj, ...)
-CODE:
- dTHXc;
- SV *sobj = S_sharedsv_from_obj(aTHX_ obj);
- int i;
- for(i = 1; i < items; i++) {
- SV* tmp = newSVsv(ST(i));
- SV *stmp;
- ENTER_LOCK;
- stmp = S_sharedsv_new_shared(aTHX_ tmp);
- sharedsv_scalar_store(aTHX_ tmp, stmp);
- SHARED_CONTEXT;
- av_push((AV*) sobj, stmp);
- SvREFCNT_inc(stmp);
- SHARED_RELEASE;
- SvREFCNT_dec(tmp);
- }
+ CODE:
+ dTHXc;
+ SV *sobj = S_sharedsv_from_obj(aTHX_ obj);
+ int i;
+ for (i = 1; i < items; i++) {
+ SV* tmp = newSVsv(ST(i));
+ SV *stmp;
+ ENTER_LOCK;
+ stmp = S_sharedsv_new_shared(aTHX_ tmp);
+ sharedsv_scalar_store(aTHX_ tmp, stmp);
+ SHARED_CONTEXT;
+ av_push((AV*) sobj, stmp);
+ SvREFCNT_inc_void(stmp);
+ SHARED_RELEASE;
+ SvREFCNT_dec(tmp);
+ }
+
void
UNSHIFT(SV *obj, ...)
-CODE:
- dTHXc;
- SV *sobj = S_sharedsv_from_obj(aTHX_ obj);
- int i;
- ENTER_LOCK;
- SHARED_CONTEXT;
- av_unshift((AV*)sobj, items - 1);
- CALLER_CONTEXT;
- for(i = 1; i < items; i++) {
- SV *tmp = newSVsv(ST(i));
- SV *stmp = S_sharedsv_new_shared(aTHX_ tmp);
- sharedsv_scalar_store(aTHX_ tmp, stmp);
- SHARED_CONTEXT;
- av_store((AV*) sobj, i - 1, stmp);
- SvREFCNT_inc(stmp);
- CALLER_CONTEXT;
- SvREFCNT_dec(tmp);
- }
- LEAVE_LOCK;
+ CODE:
+ dTHXc;
+ SV *sobj = S_sharedsv_from_obj(aTHX_ obj);
+ int i;
+ ENTER_LOCK;
+ SHARED_CONTEXT;
+ av_unshift((AV*)sobj, items - 1);
+ CALLER_CONTEXT;
+ for (i = 1; i < items; i++) {
+ SV *tmp = newSVsv(ST(i));
+ SV *stmp = S_sharedsv_new_shared(aTHX_ tmp);
+ sharedsv_scalar_store(aTHX_ tmp, stmp);
+ SHARED_CONTEXT;
+ av_store((AV*) sobj, i - 1, stmp);
+ SvREFCNT_inc_void(stmp);
+ CALLER_CONTEXT;
+ SvREFCNT_dec(tmp);
+ }
+ LEAVE_LOCK;
+
void
POP(SV *obj)
-CODE:
- dTHXc;
- SV *sobj = S_sharedsv_from_obj(aTHX_ obj);
- SV* ssv;
- ENTER_LOCK;
- SHARED_CONTEXT;
- ssv = av_pop((AV*)sobj);
- CALLER_CONTEXT;
- ST(0) = sv_newmortal();
- Perl_sharedsv_associate(aTHX_ ST(0), ssv);
- SvREFCNT_dec(ssv);
- LEAVE_LOCK;
- XSRETURN(1);
+ CODE:
+ dTHXc;
+ SV *sobj = S_sharedsv_from_obj(aTHX_ obj);
+ SV* ssv;
+ ENTER_LOCK;
+ SHARED_CONTEXT;
+ ssv = av_pop((AV*)sobj);
+ CALLER_CONTEXT;
+ ST(0) = sv_newmortal();
+ Perl_sharedsv_associate(aTHX_ ST(0), ssv);
+ SvREFCNT_dec(ssv);
+ LEAVE_LOCK;
+ /* XSRETURN(1); - implied */
+
void
SHIFT(SV *obj)
-CODE:
- dTHXc;
- SV *sobj = S_sharedsv_from_obj(aTHX_ obj);
- SV* ssv;
- ENTER_LOCK;
- SHARED_CONTEXT;
- ssv = av_shift((AV*)sobj);
- CALLER_CONTEXT;
- ST(0) = sv_newmortal();
- Perl_sharedsv_associate(aTHX_ ST(0), ssv);
- SvREFCNT_dec(ssv);
- LEAVE_LOCK;
- XSRETURN(1);
+ CODE:
+ dTHXc;
+ SV *sobj = S_sharedsv_from_obj(aTHX_ obj);
+ SV* ssv;
+ ENTER_LOCK;
+ SHARED_CONTEXT;
+ ssv = av_shift((AV*)sobj);
+ CALLER_CONTEXT;
+ ST(0) = sv_newmortal();
+ Perl_sharedsv_associate(aTHX_ ST(0), ssv);
+ SvREFCNT_dec(ssv);
+ LEAVE_LOCK;
+ /* XSRETURN(1); - implied */
+
void
EXTEND(SV *obj, IV count)
-CODE:
- dTHXc;
- SV *sobj = S_sharedsv_from_obj(aTHX_ obj);
- SHARED_EDIT;
- av_extend((AV*)sobj, count);
- SHARED_RELEASE;
+ CODE:
+ dTHXc;
+ SV *sobj = S_sharedsv_from_obj(aTHX_ obj);
+ SHARED_EDIT;
+ av_extend((AV*)sobj, count);
+ SHARED_RELEASE;
+
void
STORESIZE(SV *obj,IV count)
-CODE:
- dTHXc;
- SV *sobj = S_sharedsv_from_obj(aTHX_ obj);
- SHARED_EDIT;
- av_fill((AV*) sobj, count);
- SHARED_RELEASE;
-
-
+ CODE:
+ dTHXc;
+ SV *sobj = S_sharedsv_from_obj(aTHX_ obj);
+ SHARED_EDIT;
+ av_fill((AV*) sobj, count);
+ SHARED_RELEASE;
void
EXISTS(SV *obj, SV *index)
-CODE:
- dTHXc;
- SV *sobj = S_sharedsv_from_obj(aTHX_ obj);
- bool exists;
- if (SvTYPE(sobj) == SVt_PVAV) {
- SHARED_EDIT;
- exists = av_exists((AV*) sobj, SvIV(index));
- }
- else {
- STRLEN len;
- char *key = SvPV(index,len);
- SHARED_EDIT;
- exists = hv_exists((HV*) sobj, key, len);
- }
- SHARED_RELEASE;
- ST(0) = (exists) ? &PL_sv_yes : &PL_sv_no;
- XSRETURN(1);
+ CODE:
+ dTHXc;
+ SV *sobj = S_sharedsv_from_obj(aTHX_ obj);
+ bool exists;
+ if (SvTYPE(sobj) == SVt_PVAV) {
+ SHARED_EDIT;
+ exists = av_exists((AV*) sobj, SvIV(index));
+ } else {
+ STRLEN len;
+ char *key = SvPV(index,len);
+ SHARED_EDIT;
+ exists = hv_exists((HV*) sobj, key, len);
+ }
+ SHARED_RELEASE;
+ ST(0) = (exists) ? &PL_sv_yes : &PL_sv_no;
+ /* XSRETURN(1); - implied */
void
FIRSTKEY(SV *obj)
-CODE:
- dTHXc;
- SV *sobj = S_sharedsv_from_obj(aTHX_ obj);
- char* key = NULL;
- I32 len = 0;
- HE* entry;
- ENTER_LOCK;
- SHARED_CONTEXT;
- hv_iterinit((HV*) sobj);
- entry = hv_iternext((HV*) sobj);
- if (entry) {
- key = hv_iterkey(entry,&len);
- CALLER_CONTEXT;
- ST(0) = sv_2mortal(newSVpv(key, len));
- } else {
- CALLER_CONTEXT;
- ST(0) = &PL_sv_undef;
- }
- LEAVE_LOCK;
- XSRETURN(1);
+ CODE:
+ dTHXc;
+ SV *sobj = S_sharedsv_from_obj(aTHX_ obj);
+ char* key = NULL;
+ I32 len = 0;
+ HE* entry;
+ ENTER_LOCK;
+ SHARED_CONTEXT;
+ hv_iterinit((HV*) sobj);
+ entry = hv_iternext((HV*) sobj);
+ if (entry) {
+ key = hv_iterkey(entry,&len);
+ CALLER_CONTEXT;
+ ST(0) = sv_2mortal(newSVpv(key, len));
+ } else {
+ CALLER_CONTEXT;
+ ST(0) = &PL_sv_undef;
+ }
+ LEAVE_LOCK;
+ /* XSRETURN(1); - implied */
+
void
NEXTKEY(SV *obj, SV *oldkey)
-CODE:
- dTHXc;
- SV *sobj = S_sharedsv_from_obj(aTHX_ obj);
- char* key = NULL;
- I32 len = 0;
- HE* entry;
- ENTER_LOCK;
- SHARED_CONTEXT;
- entry = hv_iternext((HV*) sobj);
- if (entry) {
- key = hv_iterkey(entry,&len);
- CALLER_CONTEXT;
- ST(0) = sv_2mortal(newSVpv(key, len));
- } else {
- CALLER_CONTEXT;
- ST(0) = &PL_sv_undef;
- }
- LEAVE_LOCK;
- XSRETURN(1);
-
-MODULE = threads::shared PACKAGE = threads::shared
+ CODE:
+ dTHXc;
+ SV *sobj = S_sharedsv_from_obj(aTHX_ obj);
+ char* key = NULL;
+ I32 len = 0;
+ HE* entry;
+
+ PERL_UNUSED_VAR(oldkey);
+
+ ENTER_LOCK;
+ SHARED_CONTEXT;
+ entry = hv_iternext((HV*) sobj);
+ if (entry) {
+ key = hv_iterkey(entry,&len);
+ CALLER_CONTEXT;
+ ST(0) = sv_2mortal(newSVpv(key, len));
+ } else {
+ CALLER_CONTEXT;
+ ST(0) = &PL_sv_undef;
+ }
+ LEAVE_LOCK;
+ /* XSRETURN(1); - implied */
+
+
+MODULE = threads::shared PACKAGE = threads::shared
PROTOTYPES: ENABLE
void
_id(SV *ref)
- PROTOTYPE: \[$@%]
-CODE:
- SV *ssv;
- ref = SvRV(ref);
- if(SvROK(ref))
- ref = SvRV(ref);
- if( (ssv = Perl_sharedsv_find(aTHX_ ref)) ){
- ST(0) = sv_2mortal(newSViv(PTR2IV(ssv)));
- XSRETURN(1);
- }
- XSRETURN_UNDEF;
+ PROTOTYPE: \[$@%]
+ PREINIT:
+ SV *ssv;
+ CODE:
+ ref = SvRV(ref);
+ if (SvROK(ref))
+ ref = SvRV(ref);
+ ssv = Perl_sharedsv_find(aTHX_ ref);
+ if (! ssv)
+ XSRETURN_UNDEF;
+ ST(0) = sv_2mortal(newSVuv(PTR2UV(ssv)));
+ /* XSRETURN(1); - implied */
void
_refcnt(SV *ref)
- PROTOTYPE: \[$@%]
-CODE:
- SV *ssv;
- ref = SvRV(ref);
- if(SvROK(ref))
- ref = SvRV(ref);
- if( (ssv = Perl_sharedsv_find(aTHX_ ref)) ) {
- ST(0) = sv_2mortal(newSViv(SvREFCNT(ssv)));
- XSRETURN(1);
- }
- else {
- Perl_warn(aTHX_ "%" SVf " is not shared",ST(0));
- }
- XSRETURN_UNDEF;
-
-SV*
+ PROTOTYPE: \[$@%]
+ PREINIT:
+ SV *ssv;
+ CODE:
+ ref = SvRV(ref);
+ if (SvROK(ref))
+ ref = SvRV(ref);
+ ssv = Perl_sharedsv_find(aTHX_ ref);
+ if (! ssv) {
+ if (ckWARN(WARN_THREADS)) {
+ Perl_warner(aTHX_ packWARN(WARN_THREADS),
+ "%" SVf " is not shared", ST(0));
+ }
+ XSRETURN_UNDEF;
+ }
+ ST(0) = sv_2mortal(newSViv(SvREFCNT(ssv)));
+ /* XSRETURN(1); - implied */
+
+
+void
share(SV *ref)
- PROTOTYPE: \[$@%]
- CODE:
- if(!SvROK(ref))
+ PROTOTYPE: \[$@%]
+ CODE:
+ if (! SvROK(ref))
Perl_croak(aTHX_ "Argument to share needs to be passed as ref");
- ref = SvRV(ref);
- if(SvROK(ref))
- ref = SvRV(ref);
- Perl_sharedsv_share(aTHX_ ref);
- RETVAL = newRV(ref);
- OUTPUT:
- RETVAL
+ ref = SvRV(ref);
+ if (SvROK(ref))
+ ref = SvRV(ref);
+ Perl_sharedsv_share(aTHX_ ref);
+ ST(0) = sv_2mortal(newRV_inc(ref));
+ /* XSRETURN(1); - implied */
-void
-lock_enabled(SV *ref)
- PROTOTYPE: \[$@%]
- CODE:
- SV *ssv;
- if(!SvROK(ref))
- Perl_croak(aTHX_ "Argument to lock needs to be passed as ref");
- ref = SvRV(ref);
- if(SvROK(ref))
- ref = SvRV(ref);
- ssv = Perl_sharedsv_find(aTHX_ ref);
- if(!ssv)
- croak("lock can only be used on shared values");
- Perl_sharedsv_lock(aTHX_ ssv);
void
-cond_wait_enabled(SV *ref_cond, SV *ref_lock = 0)
- PROTOTYPE: \[$@%];\[$@%]
- PREINIT:
- SV *ssv;
- perl_cond* user_condition;
- int locks;
- int same = 0;
- user_lock *ul;
-
- CODE:
- if (!ref_lock || ref_lock == ref_cond) same = 1;
-
- if(!SvROK(ref_cond))
+cond_wait(SV *ref_cond, SV *ref_lock = 0)
+ PROTOTYPE: \[$@%];\[$@%]
+ PREINIT:
+ SV *ssv;
+ perl_cond* user_condition;
+ int locks;
+ user_lock *ul;
+ CODE:
+ if (!SvROK(ref_cond))
Perl_croak(aTHX_ "Argument to cond_wait needs to be passed as ref");
- ref_cond = SvRV(ref_cond);
- if(SvROK(ref_cond))
- ref_cond = SvRV(ref_cond);
- ssv = Perl_sharedsv_find(aTHX_ ref_cond);
- if(!ssv)
- croak("cond_wait can only be used on shared values");
- ul = S_get_userlock(aTHX_ ssv, 1);
-
- user_condition = &ul->user_cond;
- if (! same) {
- if (!SvROK(ref_lock))
- Perl_croak(aTHX_ "cond_wait lock needs to be passed as ref");
- ref_lock = SvRV(ref_lock);
- if (SvROK(ref_lock)) ref_lock = SvRV(ref_lock);
- ssv = Perl_sharedsv_find(aTHX_ ref_lock);
- if (!ssv)
- croak("cond_wait lock must be a shared value");
- ul = S_get_userlock(aTHX_ ssv, 1);
- }
- if(ul->lock.owner != aTHX)
- croak("You need a lock before you can cond_wait");
- /* Stealing the members of the lock object worries me - NI-S */
- MUTEX_LOCK(&ul->lock.mutex);
- ul->lock.owner = NULL;
- locks = ul->lock.locks;
- ul->lock.locks = 0;
-
- /* since we are releasing the lock here we need to tell other
- people that is ok to go ahead and use it */
- COND_SIGNAL(&ul->lock.cond);
- COND_WAIT(user_condition, &ul->lock.mutex);
- while(ul->lock.owner != NULL) {
- /* OK -- must reacquire the lock */
- COND_WAIT(&ul->lock.cond, &ul->lock.mutex);
- }
- ul->lock.owner = aTHX;
- ul->lock.locks = locks;
- MUTEX_UNLOCK(&ul->lock.mutex);
+ ref_cond = SvRV(ref_cond);
+ if (SvROK(ref_cond))
+ ref_cond = SvRV(ref_cond);
+ ssv = Perl_sharedsv_find(aTHX_ ref_cond);
+ if (! ssv)
+ Perl_croak(aTHX_ "cond_wait can only be used on shared values");
+ ul = S_get_userlock(aTHX_ ssv, 1);
+
+ user_condition = &ul->user_cond;
+ if (ref_lock && (ref_cond != ref_lock)) {
+ if (!SvROK(ref_lock))
+ Perl_croak(aTHX_ "cond_wait lock needs to be passed as ref");
+ ref_lock = SvRV(ref_lock);
+ if (SvROK(ref_lock)) ref_lock = SvRV(ref_lock);
+ ssv = Perl_sharedsv_find(aTHX_ ref_lock);
+ if (! ssv)
+ Perl_croak(aTHX_ "cond_wait lock must be a shared value");
+ ul = S_get_userlock(aTHX_ ssv, 1);
+ }
+ if (ul->lock.owner != aTHX)
+ croak("You need a lock before you can cond_wait");
+
+ /* Stealing the members of the lock object worries me - NI-S */
+ MUTEX_LOCK(&ul->lock.mutex);
+ ul->lock.owner = NULL;
+ locks = ul->lock.locks;
+ ul->lock.locks = 0;
+
+ /* Since we are releasing the lock here, we need to tell other
+ * people that it is ok to go ahead and use it */
+ COND_SIGNAL(&ul->lock.cond);
+ COND_WAIT(user_condition, &ul->lock.mutex);
+ while (ul->lock.owner != NULL) {
+ /* OK -- must reacquire the lock */
+ COND_WAIT(&ul->lock.cond, &ul->lock.mutex);
+ }
+ ul->lock.owner = aTHX;
+ ul->lock.locks = locks;
+ MUTEX_UNLOCK(&ul->lock.mutex);
+
int
-cond_timedwait_enabled(SV *ref_cond, double abs, SV *ref_lock = 0)
- PROTOTYPE: \[$@%]$;\[$@%]
- PREINIT:
- SV *ssv;
- perl_cond* user_condition;
- int locks;
- int same = 0;
- user_lock *ul;
-
- CODE:
- if (!ref_lock || ref_cond == ref_lock) same = 1;
-
- if(!SvROK(ref_cond))
- Perl_croak(aTHX_ "Argument to cond_timedwait needs to be passed as ref");
- ref_cond = SvRV(ref_cond);
- if(SvROK(ref_cond))
- ref_cond = SvRV(ref_cond);
- ssv = Perl_sharedsv_find(aTHX_ ref_cond);
- if(!ssv)
- croak("cond_timedwait can only be used on shared values");
- ul = S_get_userlock(aTHX_ ssv, 1);
-
- user_condition = &ul->user_cond;
- if (! same) {
- if (!SvROK(ref_lock))
- Perl_croak(aTHX_ "cond_timedwait lock needs to be passed as ref");
- ref_lock = SvRV(ref_lock);
- if (SvROK(ref_lock)) ref_lock = SvRV(ref_lock);
- ssv = Perl_sharedsv_find(aTHX_ ref_lock);
- if (!ssv)
- croak("cond_timedwait lock must be a shared value");
- ul = S_get_userlock(aTHX_ ssv, 1);
- }
- if(ul->lock.owner != aTHX)
- croak("You need a lock before you can cond_wait");
-
- MUTEX_LOCK(&ul->lock.mutex);
- ul->lock.owner = NULL;
- locks = ul->lock.locks;
- ul->lock.locks = 0;
- /* since we are releasing the lock here we need to tell other
- people that is ok to go ahead and use it */
- COND_SIGNAL(&ul->lock.cond);
- RETVAL = Perl_sharedsv_cond_timedwait(user_condition, &ul->lock.mutex, abs);
- while (ul->lock.owner != NULL) {
- /* OK -- must reacquire the lock... */
- COND_WAIT(&ul->lock.cond, &ul->lock.mutex);
- }
- ul->lock.owner = aTHX;
- ul->lock.locks = locks;
- MUTEX_UNLOCK(&ul->lock.mutex);
-
- if (RETVAL == 0)
+cond_timedwait(SV *ref_cond, double abs, SV *ref_lock = 0)
+ PROTOTYPE: \[$@%]$;\[$@%]
+ PREINIT:
+ SV *ssv;
+ perl_cond* user_condition;
+ int locks;
+ user_lock *ul;
+ CODE:
+ if (! SvROK(ref_cond))
+ Perl_croak(aTHX_ "Argument to cond_timedwait needs to be passed as ref");
+ ref_cond = SvRV(ref_cond);
+ if (SvROK(ref_cond))
+ ref_cond = SvRV(ref_cond);
+ ssv = Perl_sharedsv_find(aTHX_ ref_cond);
+ if (! ssv)
+ Perl_croak(aTHX_ "cond_timedwait can only be used on shared values");
+ ul = S_get_userlock(aTHX_ ssv, 1);
+
+ user_condition = &ul->user_cond;
+ if (ref_lock && (ref_cond != ref_lock)) {
+ if (! SvROK(ref_lock))
+ Perl_croak(aTHX_ "cond_timedwait lock needs to be passed as ref");
+ ref_lock = SvRV(ref_lock);
+ if (SvROK(ref_lock)) ref_lock = SvRV(ref_lock);
+ ssv = Perl_sharedsv_find(aTHX_ ref_lock);
+ if (! ssv)
+ Perl_croak(aTHX_ "cond_timedwait lock must be a shared value");
+ ul = S_get_userlock(aTHX_ ssv, 1);
+ }
+ if (ul->lock.owner != aTHX)
+ Perl_croak(aTHX_ "You need a lock before you can cond_wait");
+
+ MUTEX_LOCK(&ul->lock.mutex);
+ ul->lock.owner = NULL;
+ locks = ul->lock.locks;
+ ul->lock.locks = 0;
+ /* Since we are releasing the lock here, we need to tell other
+ * people that it is ok to go ahead and use it */
+ COND_SIGNAL(&ul->lock.cond);
+ RETVAL = Perl_sharedsv_cond_timedwait(user_condition, &ul->lock.mutex, abs);
+ while (ul->lock.owner != NULL) {
+ /* OK -- must reacquire the lock... */
+ COND_WAIT(&ul->lock.cond, &ul->lock.mutex);
+ }
+ ul->lock.owner = aTHX;
+ ul->lock.locks = locks;
+ MUTEX_UNLOCK(&ul->lock.mutex);
+
+ if (RETVAL == 0)
XSRETURN_UNDEF;
- OUTPUT:
- RETVAL
+ OUTPUT:
+ RETVAL
-void
-cond_signal_enabled(SV *ref)
- PROTOTYPE: \[$@%]
- CODE:
- SV *ssv;
- user_lock *ul;
- if(!SvROK(ref))
+void
+cond_signal(SV *ref)
+ PROTOTYPE: \[$@%]
+ PREINIT:
+ SV *ssv;
+ user_lock *ul;
+ CODE:
+ if (! SvROK(ref))
Perl_croak(aTHX_ "Argument to cond_signal needs to be passed as ref");
- ref = SvRV(ref);
- if(SvROK(ref))
- ref = SvRV(ref);
- ssv = Perl_sharedsv_find(aTHX_ ref);
- if(!ssv)
- croak("cond_signal can only be used on shared values");
- ul = S_get_userlock(aTHX_ ssv, 1);
- if (ckWARN(WARN_THREADS) && ul->lock.owner != aTHX)
- Perl_warner(aTHX_ packWARN(WARN_THREADS),
- "cond_signal() called on unlocked variable");
- COND_SIGNAL(&ul->user_cond);
+ ref = SvRV(ref);
+ if (SvROK(ref))
+ ref = SvRV(ref);
+ ssv = Perl_sharedsv_find(aTHX_ ref);
+ if (! ssv)
+ Perl_croak(aTHX_ "cond_signal can only be used on shared values");
+ ul = S_get_userlock(aTHX_ ssv, 1);
+ if (ckWARN(WARN_THREADS) && ul->lock.owner != aTHX) {
+ Perl_warner(aTHX_ packWARN(WARN_THREADS),
+ "cond_signal() called on unlocked variable");
+ }
+ COND_SIGNAL(&ul->user_cond);
-void
-cond_broadcast_enabled(SV *ref)
- PROTOTYPE: \[$@%]
- CODE:
- SV *ssv;
- user_lock *ul;
- if(!SvROK(ref))
+void
+cond_broadcast(SV *ref)
+ PROTOTYPE: \[$@%]
+ PREINIT:
+ SV *ssv;
+ user_lock *ul;
+ CODE:
+ if (! SvROK(ref))
Perl_croak(aTHX_ "Argument to cond_broadcast needs to be passed as ref");
- ref = SvRV(ref);
- if(SvROK(ref))
- ref = SvRV(ref);
- ssv = Perl_sharedsv_find(aTHX_ ref);
- if(!ssv)
- croak("cond_broadcast can only be used on shared values");
- ul = S_get_userlock(aTHX_ ssv, 1);
- if (ckWARN(WARN_THREADS) && ul->lock.owner != aTHX)
- Perl_warner(aTHX_ packWARN(WARN_THREADS),
- "cond_broadcast() called on unlocked variable");
- COND_BROADCAST(&ul->user_cond);
-
-
-SV*
+ ref = SvRV(ref);
+ if (SvROK(ref))
+ ref = SvRV(ref);
+ ssv = Perl_sharedsv_find(aTHX_ ref);
+ if (! ssv)
+ Perl_croak(aTHX_ "cond_broadcast can only be used on shared values");
+ ul = S_get_userlock(aTHX_ ssv, 1);
+ if (ckWARN(WARN_THREADS) && ul->lock.owner != aTHX) {
+ Perl_warner(aTHX_ packWARN(WARN_THREADS),
+ "cond_broadcast() called on unlocked variable");
+ }
+ COND_BROADCAST(&ul->user_cond);
+
+
+void
bless(SV* ref, ...);
- PROTOTYPE: $;$
- CODE:
- {
- HV* stash;
- SV *ssv;
- if (items == 1)
- stash = CopSTASH(PL_curcop);
- else {
- SV* classname = ST(1);
- STRLEN len;
- char *ptr;
-
- if (classname && !SvGMAGICAL(classname) &&
- !SvAMAGIC(classname) && SvROK(classname))
- Perl_croak(aTHX_ "Attempt to bless into a reference");
- ptr = SvPV(classname,len);
- if (ckWARN(WARN_MISC) && len == 0)
- Perl_warner(aTHX_ packWARN(WARN_MISC),
- "Explicit blessing to '' (assuming package main)");
- stash = gv_stashpvn(ptr, len, TRUE);
- }
- SvREFCNT_inc(ref);
- (void)sv_bless(ref, stash);
- RETVAL = ref;
- ssv = Perl_sharedsv_find(aTHX_ ref);
- if(ssv) {
- dTHXc;
- ENTER_LOCK;
- SHARED_CONTEXT;
- {
- SV* fake_stash = newSVpv(HvNAME_get(stash),0);
- (void)sv_bless(ssv,(HV*)fake_stash);
- }
- CALLER_CONTEXT;
- LEAVE_LOCK;
- }
- }
- OUTPUT:
- RETVAL
+ PROTOTYPE: $;$
+ PREINIT:
+ HV* stash;
+ SV *ssv;
+ CODE:
+ if (items == 1) {
+ stash = CopSTASH(PL_curcop);
+ } else {
+ SV* classname = ST(1);
+ STRLEN len;
+ char *ptr;
+
+ if (classname &&
+ ! SvGMAGICAL(classname) &&
+ ! SvAMAGIC(classname) &&
+ SvROK(classname))
+ {
+ Perl_croak(aTHX_ "Attempt to bless into a reference");
+ }
+ ptr = SvPV(classname, len);
+ if (ckWARN(WARN_MISC) && len == 0) {
+ Perl_warner(aTHX_ packWARN(WARN_MISC),
+ "Explicit blessing to '' (assuming package main)");
+ }
+ stash = gv_stashpvn(ptr, len, TRUE);
+ }
+ SvREFCNT_inc_void(ref);
+ (void)sv_bless(ref, stash);
+ ST(0) = sv_2mortal(ref);
+ ssv = Perl_sharedsv_find(aTHX_ ref);
+ if (ssv) {
+ dTHXc;
+ ENTER_LOCK;
+ SHARED_CONTEXT;
+ {
+ SV* fake_stash = newSVpv(HvNAME_get(stash), 0);
+ (void)sv_bless(ssv, (HV*)fake_stash);
+ }
+ CALLER_CONTEXT;
+ LEAVE_LOCK;
+ }
+ /* XSRETURN(1); - implied */
#endif /* USE_ITHREADS */