-#if defined(USE_THREADS) || defined(USE_ITHREADS)
+/* thread.h
+ *
+ * Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+ * 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.
+ *
+ */
+
+#if defined(USE_ITHREADS)
#if defined(VMS)
#include <builtins.h>
#ifdef WIN32
# include <win32thread.h>
+#elif defined(NETWARE)
+# include <nw5thread.h>
#else
# ifdef OLD_PTHREADS_API /* Here be dragons. */
# define DETACH(t) \
STMT_START { \
- if (pthread_detach(&(t)->self)) { \
+ int _eC_; \
+ if ((_eC_ = pthread_detach(&(t)->self))) { \
MUTEX_UNLOCK(&(t)->mutex); \
- Perl_croak_nocontext("panic: DETACH"); \
+ Perl_croak_nocontext("panic: DETACH (%d) [%s:%d]", \
+ _eC_, __FILE__, __LINE__); \
} \
} STMT_END
# define NEED_PTHREAD_INIT
# define PTHREAD_CREATE_JOINABLE (1)
# endif
-# ifdef __OPEN_VM
+# ifdef OEMVS
# define pthread_addr_t void *
+# define pthread_create(t,a,s,d) pthread_create(t,&(a),s,d)
+# define pthread_keycreate pthread_key_create
# endif
# ifdef VMS
# define pthread_attr_init(a) pthread_attr_create(a)
# define pthread_mutexattr_init(a) pthread_mutexattr_create(a)
# define pthread_mutexattr_settype(a,t) pthread_mutexattr_setkind_np(a,t)
# endif
-# if defined(DJGPP) || defined(__OPEN_VM)
+# if defined(DJGPP) || defined(OEMVS)
# define PTHREAD_ATTR_SETDETACHSTATE(a,s) pthread_attr_setdetachstate(a,&(s))
# define YIELD pthread_yield(NULL)
# endif
# endif
#endif
+#ifdef __VMS
+ /* Default is 1024 on VAX, 8192 otherwise */
+# ifdef __ia64
+# define THREAD_CREATE_NEEDS_STACK (48*1024)
+# else
+# define THREAD_CREATE_NEEDS_STACK (32*1024)
+# endif
+#endif
+
#ifdef I_MACH_CTHREADS
/* cthreads interface */
if (*m) { \
mutex_init(*m); \
} else { \
- Perl_croak_nocontext("panic: MUTEX_INIT"); \
+ Perl_croak_nocontext("panic: MUTEX_INIT [%s:%d]", \
+ __FILE__, __LINE__); \
} \
} STMT_END
condition_init(*c); \
} \
else { \
- Perl_croak_nocontext("panic: COND_INIT"); \
+ Perl_croak_nocontext("panic: COND_INIT [%s:%d]", \
+ __FILE__, __LINE__); \
} \
} STMT_END
*c = 0; \
} STMT_END
-#define THREAD_CREATE(thr, f) (thr->self = cthread_fork(f, thr), 0)
-#define THREAD_POST_CREATE(thr)
-
#define THREAD_RET_TYPE any_t
-#define THREAD_RET_CAST(x) ((any_t) x)
#define DETACH(t) cthread_detach(t->self)
-#define JOIN(t, avp) (*(avp) = (AV *)cthread_join(t->self))
+#define JOIN(t, avp) (*(avp) = MUTABLE_AV(cthread_join(t->self)))
#define PERL_SET_CONTEXT(t) cthread_set_data(cthread_self(), t)
#define PERL_GET_CONTEXT cthread_data(cthread_self())
#ifndef YIELD
# ifdef SCHED_YIELD
# define YIELD SCHED_YIELD
-# else
-# ifdef HAS_SCHED_YIELD
-# define YIELD sched_yield()
-# else
-# ifdef HAS_PTHREAD_YIELD
+# elif defined(HAS_SCHED_YIELD)
+# define YIELD sched_yield()
+# elif defined(HAS_PTHREAD_YIELD)
/* pthread_yield(NULL) platforms are expected
* to have #defined YIELD for themselves. */
-# define YIELD pthread_yield()
-# endif
-# endif
+# define YIELD pthread_yield()
# endif
#endif
/* Temporary workaround, true bug is deeper. --jhi 1999-02-25 */
# define MUTEX_INIT(m) \
STMT_START { \
+ int _eC_; \
Zero((m), 1, perl_mutex); \
- if (pthread_mutex_init((m), pthread_mutexattr_default)) \
- Perl_croak_nocontext("panic: MUTEX_INIT"); \
+ if ((_eC_ = pthread_mutex_init((m), pthread_mutexattr_default))) \
+ Perl_croak_nocontext("panic: MUTEX_INIT (%d) [%s:%d]", \
+ _eC_, __FILE__, __LINE__); \
} STMT_END
# else
# define MUTEX_INIT(m) \
STMT_START { \
- if (pthread_mutex_init((m), pthread_mutexattr_default)) \
- Perl_croak_nocontext("panic: MUTEX_INIT"); \
+ int _eC_; \
+ if ((_eC_ = pthread_mutex_init((m), pthread_mutexattr_default))) \
+ Perl_croak_nocontext("panic: MUTEX_INIT (%d) [%s:%d]", \
+ _eC_, __FILE__, __LINE__); \
} STMT_END
# endif
+# ifdef PERL_TSA_ACTIVE
+# define perl_pthread_mutex_lock(m) perl_tsa_mutex_lock(m)
+# define perl_pthread_mutex_unlock(m) perl_tsa_mutex_unlock(m)
+# else
+# define perl_pthread_mutex_lock(m) pthread_mutex_lock(m)
+# define perl_pthread_mutex_unlock(m) pthread_mutex_unlock(m)
+# endif
+
# define MUTEX_LOCK(m) \
STMT_START { \
- if (pthread_mutex_lock((m))) \
- Perl_croak_nocontext("panic: MUTEX_LOCK"); \
+ int _eC_; \
+ if ((_eC_ = perl_pthread_mutex_lock((m)))) \
+ Perl_croak_nocontext("panic: MUTEX_LOCK (%d) [%s:%d]", \
+ _eC_, __FILE__, __LINE__); \
} STMT_END
# define MUTEX_UNLOCK(m) \
STMT_START { \
- if (pthread_mutex_unlock((m))) \
- Perl_croak_nocontext("panic: MUTEX_UNLOCK"); \
+ int _eC_; \
+ if ((_eC_ = perl_pthread_mutex_unlock((m)))) \
+ Perl_croak_nocontext("panic: MUTEX_UNLOCK (%d) [%s:%d]", \
+ _eC_, __FILE__, __LINE__); \
} STMT_END
# define MUTEX_DESTROY(m) \
STMT_START { \
- if (pthread_mutex_destroy((m))) \
- Perl_croak_nocontext("panic: MUTEX_DESTROY"); \
+ int _eC_; \
+ if ((_eC_ = pthread_mutex_destroy((m)))) \
+ Perl_croak_nocontext("panic: MUTEX_DESTROY (%d) [%s:%d]", \
+ _eC_, __FILE__, __LINE__); \
} STMT_END
#endif /* MUTEX_INIT */
#ifndef COND_INIT
# define COND_INIT(c) \
STMT_START { \
- if (pthread_cond_init((c), pthread_condattr_default)) \
- Perl_croak_nocontext("panic: COND_INIT"); \
+ int _eC_; \
+ if ((_eC_ = pthread_cond_init((c), pthread_condattr_default))) \
+ Perl_croak_nocontext("panic: COND_INIT (%d) [%s:%d]", \
+ _eC_, __FILE__, __LINE__); \
} STMT_END
# define COND_SIGNAL(c) \
STMT_START { \
- if (pthread_cond_signal((c))) \
- Perl_croak_nocontext("panic: COND_SIGNAL"); \
+ int _eC_; \
+ if ((_eC_ = pthread_cond_signal((c)))) \
+ Perl_croak_nocontext("panic: COND_SIGNAL (%d) [%s:%d]", \
+ _eC_, __FILE__, __LINE__); \
} STMT_END
# define COND_BROADCAST(c) \
STMT_START { \
- if (pthread_cond_broadcast((c))) \
- Perl_croak_nocontext("panic: COND_BROADCAST"); \
+ int _eC_; \
+ if ((_eC_ = pthread_cond_broadcast((c)))) \
+ Perl_croak_nocontext("panic: COND_BROADCAST (%d) [%s:%d]", \
+ _eC_, __FILE__, __LINE__); \
} STMT_END
# define COND_WAIT(c, m) \
STMT_START { \
- if (pthread_cond_wait((c), (m))) \
- Perl_croak_nocontext("panic: COND_WAIT"); \
+ int _eC_; \
+ if ((_eC_ = pthread_cond_wait((c), (m)))) \
+ Perl_croak_nocontext("panic: COND_WAIT (%d) [%s:%d]", \
+ _eC_, __FILE__, __LINE__); \
} STMT_END
# define COND_DESTROY(c) \
STMT_START { \
- if (pthread_cond_destroy((c))) \
- Perl_croak_nocontext("panic: COND_DESTROY"); \
+ int _eC_; \
+ if ((_eC_ = pthread_cond_destroy((c)))) \
+ Perl_croak_nocontext("panic: COND_DESTROY (%d) [%s:%d]", \
+ _eC_, __FILE__, __LINE__); \
} STMT_END
#endif /* COND_INIT */
#ifndef DETACH
# define DETACH(t) \
STMT_START { \
- if (pthread_detach((t)->self)) { \
+ int _eC_; \
+ if ((_eC_ = pthread_detach((t)->self))) { \
MUTEX_UNLOCK(&(t)->mutex); \
- Perl_croak_nocontext("panic: DETACH"); \
+ Perl_croak_nocontext("panic: DETACH (%d) [%s:%d]", \
+ _eC_, __FILE__, __LINE__); \
} \
} STMT_END
#endif /* DETACH */
#ifndef JOIN
# define JOIN(t, avp) \
STMT_START { \
- if (pthread_join((t)->self, (void**)(avp))) \
- Perl_croak_nocontext("panic: pthread_join"); \
+ int _eC_; \
+ if ((_eC_ = pthread_join((t)->self, (void**)(avp)))) \
+ Perl_croak_nocontext("panic: pthread_join (%d) [%s:%d]", \
+ _eC_, __FILE__, __LINE__); \
} STMT_END
#endif /* JOIN */
+/* Use an unchecked fetch of thread-specific data instead of a checked one.
+ * It would fail if the key were bogus, but if the key were bogus then
+ * Really Bad Things would be happening anyway. --dan */
+#if (defined(__ALPHA) && (__VMS_VER >= 70000000)) || \
+ (defined(__alpha) && defined(__osf__) && !defined(__GNUC__)) /* Available only on >= 4.0 */
+# define HAS_PTHREAD_UNCHECKED_GETSPECIFIC_NP /* Configure test needed */
+#endif
+
+#ifdef HAS_PTHREAD_UNCHECKED_GETSPECIFIC_NP
+# define PTHREAD_GETSPECIFIC(key) pthread_unchecked_getspecific_np(key)
+#else
+# define PTHREAD_GETSPECIFIC(key) pthread_getspecific(key)
+#endif
+
#ifndef PERL_GET_CONTEXT
-# define PERL_GET_CONTEXT pthread_getspecific(PL_thr_key)
+# define PERL_GET_CONTEXT PTHREAD_GETSPECIFIC(PL_thr_key)
#endif
#ifndef PERL_SET_CONTEXT
# define PERL_SET_CONTEXT(t) \
STMT_START { \
- if (pthread_setspecific(PL_thr_key, (void *)(t))) \
- Perl_croak_nocontext("panic: pthread_setspecific"); \
+ int _eC_; \
+ if ((_eC_ = pthread_setspecific(PL_thr_key, (void *)(t)))) \
+ Perl_croak_nocontext("panic: pthread_setspecific (%d) [%s:%d]", \
+ _eC_, __FILE__, __LINE__); \
} STMT_END
#endif /* PERL_SET_CONTEXT */
#ifndef ALLOC_THREAD_KEY
# define ALLOC_THREAD_KEY \
STMT_START { \
- if (pthread_key_create(&PL_thr_key, 0)) { \
- PerlIO_printf(PerlIO_stderr(), "panic: pthread_key_create"); \
+ if (pthread_key_create(&PL_thr_key, 0)) { \
+ PERL_UNUSED_RESULT(write(2, STR_WITH_LEN("panic: pthread_key_create failed\n"))); \
exit(1); \
} \
} STMT_END
} STMT_END
#endif
+#ifndef PTHREAD_ATFORK
+# ifdef HAS_PTHREAD_ATFORK
+# define PTHREAD_ATFORK(prepare,parent,child) \
+ pthread_atfork(prepare,parent,child)
+# else
+# define PTHREAD_ATFORK(prepare,parent,child) \
+ NOOP
+# endif
+#endif
+
#ifndef THREAD_RET_TYPE
# define THREAD_RET_TYPE void *
-# define THREAD_RET_CAST(p) ((void *)(p))
#endif /* THREAD_RET */
-#if defined(USE_THREADS)
+# define LOCK_DOLLARZERO_MUTEX MUTEX_LOCK(&PL_dollarzero_mutex)
+# define UNLOCK_DOLLARZERO_MUTEX MUTEX_UNLOCK(&PL_dollarzero_mutex)
-/* Accessor for per-thread SVs */
-# define THREADSV(i) (thr->threadsvp[i])
-
-/*
- * LOCK_SV_MUTEX and UNLOCK_SV_MUTEX are performance-critical. Here, we
- * try only locking them if there may be more than one thread in existence.
- * Systems with very fast mutexes (and/or slow conditionals) may wish to
- * remove the "if (threadnum) ..." test.
- * XXX do NOT use C<if (PL_threadnum) ...> -- it sets up race conditions!
- */
-# define LOCK_SV_MUTEX MUTEX_LOCK(&PL_sv_mutex)
-# define UNLOCK_SV_MUTEX MUTEX_UNLOCK(&PL_sv_mutex)
-# define LOCK_STRTAB_MUTEX MUTEX_LOCK(&PL_strtab_mutex)
-# define UNLOCK_STRTAB_MUTEX MUTEX_UNLOCK(&PL_strtab_mutex)
-# define LOCK_CRED_MUTEX MUTEX_LOCK(&PL_cred_mutex)
-# define UNLOCK_CRED_MUTEX MUTEX_UNLOCK(&PL_cred_mutex)
-# define LOCK_FDPID_MUTEX MUTEX_LOCK(&PL_fdpid_mutex)
-# define UNLOCK_FDPID_MUTEX MUTEX_UNLOCK(&PL_fdpid_mutex)
-# define LOCK_SV_LOCK_MUTEX MUTEX_LOCK(&PL_sv_lock_mutex)
-# define UNLOCK_SV_LOCK_MUTEX MUTEX_UNLOCK(&PL_sv_lock_mutex)
-
-/* Values and macros for thr->flags */
-#define THRf_STATE_MASK 7
-#define THRf_R_JOINABLE 0
-#define THRf_R_JOINED 1
-#define THRf_R_DETACHED 2
-#define THRf_ZOMBIE 3
-#define THRf_DEAD 4
-
-#define THRf_DID_DIE 8
-
-/* ThrSTATE(t) and ThrSETSTATE(t) must only be called while holding t->mutex */
-#define ThrSTATE(t) ((t)->flags & THRf_STATE_MASK)
-#define ThrSETSTATE(t, s) STMT_START { \
- (t)->flags &= ~THRf_STATE_MASK; \
- (t)->flags |= (s); \
- DEBUG_S(PerlIO_printf(Perl_debug_log, \
- "thread %p set to state %d\n", (t), (s))); \
- } STMT_END
-
-typedef struct condpair {
- perl_mutex mutex; /* Protects all other fields */
- perl_cond owner_cond; /* For when owner changes at all */
- perl_cond cond; /* For cond_signal and cond_broadcast */
- Thread owner; /* Currently owning thread */
-} condpair_t;
-
-#define MgMUTEXP(mg) (&((condpair_t *)(mg->mg_ptr))->mutex)
-#define MgOWNERCONDP(mg) (&((condpair_t *)(mg->mg_ptr))->owner_cond)
-#define MgCONDP(mg) (&((condpair_t *)(mg->mg_ptr))->cond)
-#define MgOWNER(mg) ((condpair_t *)(mg->mg_ptr))->owner
-
-#endif /* USE_THREADS */
-#endif /* USE_THREADS || USE_ITHREADS */
+#endif /* USE_ITHREADS */
#ifndef MUTEX_LOCK
-# define MUTEX_LOCK(m)
+# define MUTEX_LOCK(m) NOOP
#endif
#ifndef MUTEX_UNLOCK
-# define MUTEX_UNLOCK(m)
+# define MUTEX_UNLOCK(m) NOOP
#endif
#ifndef MUTEX_INIT
-# define MUTEX_INIT(m)
+# define MUTEX_INIT(m) NOOP
#endif
#ifndef MUTEX_DESTROY
-# define MUTEX_DESTROY(m)
+# define MUTEX_DESTROY(m) NOOP
#endif
#ifndef COND_INIT
-# define COND_INIT(c)
+# define COND_INIT(c) NOOP
#endif
#ifndef COND_SIGNAL
-# define COND_SIGNAL(c)
+# define COND_SIGNAL(c) NOOP
#endif
#ifndef COND_BROADCAST
-# define COND_BROADCAST(c)
+# define COND_BROADCAST(c) NOOP
#endif
#ifndef COND_WAIT
-# define COND_WAIT(c, m)
+# define COND_WAIT(c, m) NOOP
#endif
#ifndef COND_DESTROY
-# define COND_DESTROY(c)
-#endif
-
-#ifndef LOCK_SV_MUTEX
-# define LOCK_SV_MUTEX
-#endif
-
-#ifndef UNLOCK_SV_MUTEX
-# define UNLOCK_SV_MUTEX
-#endif
-
-#ifndef LOCK_STRTAB_MUTEX
-# define LOCK_STRTAB_MUTEX
-#endif
-
-#ifndef UNLOCK_STRTAB_MUTEX
-# define UNLOCK_STRTAB_MUTEX
+# define COND_DESTROY(c) NOOP
#endif
-#ifndef LOCK_CRED_MUTEX
-# define LOCK_CRED_MUTEX
+#ifndef LOCK_DOLLARZERO_MUTEX
+# define LOCK_DOLLARZERO_MUTEX NOOP
#endif
-#ifndef UNLOCK_CRED_MUTEX
-# define UNLOCK_CRED_MUTEX
-#endif
-
-#ifndef LOCK_FDPID_MUTEX
-# define LOCK_FDPID_MUTEX
-#endif
-
-#ifndef UNLOCK_FDPID_MUTEX
-# define UNLOCK_FDPID_MUTEX
-#endif
-
-#ifndef LOCK_SV_LOCK_MUTEX
-# define LOCK_SV_LOCK_MUTEX
-#endif
-
-#ifndef UNLOCK_SV_LOCK_MUTEX
-# define UNLOCK_SV_LOCK_MUTEX
+#ifndef UNLOCK_DOLLARZERO_MUTEX
+# define UNLOCK_DOLLARZERO_MUTEX NOOP
#endif
/* THR, SET_THR, and dTHR are there for compatibility with old versions */
#ifndef INIT_THREADS
# define INIT_THREADS NOOP
#endif
+
+/*
+ * ex: set ts=8 sts=4 sw=4 et:
+ */
https://perl5.git.perl.org / perl5.git / blobdiff