-#ifdef USE_THREADS
+#if defined(USE_THREADS) || defined(USE_ITHREADS)
#ifdef WIN32
# include <win32thread.h>
#else
# ifdef OLD_PTHREADS_API /* Here be dragons. */
-# define DETACH(t) \
- STMT_START { \
- if (pthread_detach(&(t)->self)) { \
- MUTEX_UNLOCK(&(t)->mutex); \
- croak("panic: DETACH"); \
- } \
+# define DETACH(t) \
+ STMT_START { \
+ if (pthread_detach(&(t)->self)) { \
+ MUTEX_UNLOCK(&(t)->mutex); \
+ Perl_croak(aTHX_ "panic: DETACH"); \
+ } \
} STMT_END
-# define THR getTHR()
-struct perl_thread *getTHR _((void));
+
+# define PERL_GET_CONTEXT Perl_get_context()
+# define PERL_SET_CONTEXT(t) Perl_set_context((void*)t)
+
# define PTHREAD_GETSPECIFIC_INT
# ifdef DJGPP
# define pthread_addr_t any_t
# define YIELD pthread_yield(NULL)
# endif
# endif
-# ifndef VMS
# define pthread_mutexattr_default NULL
# define pthread_condattr_default NULL
-# endif
#endif
#ifndef PTHREAD_CREATE
# define PTHREAD_ATTR_SETDETACHSTATE(a,s) pthread_attr_setdetachstate(a,s)
#endif
+#ifndef PTHREAD_CREATE_JOINABLE
+# ifdef OLD_PTHREAD_CREATE_JOINABLE
+# define PTHREAD_CREATE_JOINABLE OLD_PTHREAD_CREATE_JOINABLE
+# else
+# define PTHREAD_CREATE_JOINABLE 0 /* Panic? No, guess. */
+# endif
+#endif
+
+#ifdef I_MACH_CTHREADS
+
+/* cthreads interface */
+
+/* #include <mach/cthreads.h> is in perl.h #ifdef I_MACH_CTHREADS */
+
+#define MUTEX_INIT(m) \
+ STMT_START { \
+ *m = mutex_alloc(); \
+ if (*m) { \
+ mutex_init(*m); \
+ } else { \
+ Perl_croak(aTHX_ "panic: MUTEX_INIT"); \
+ } \
+ } STMT_END
+
+#define MUTEX_LOCK(m) mutex_lock(*m)
+#define MUTEX_LOCK_NOCONTEXT(m) mutex_lock(*m)
+#define MUTEX_UNLOCK(m) mutex_unlock(*m)
+#define MUTEX_UNLOCK_NOCONTEXT(m) mutex_unlock(*m)
+#define MUTEX_DESTROY(m) \
+ STMT_START { \
+ mutex_free(*m); \
+ *m = 0; \
+ } STMT_END
+
+#define COND_INIT(c) \
+ STMT_START { \
+ *c = condition_alloc(); \
+ if (*c) { \
+ condition_init(*c); \
+ } \
+ else { \
+ Perl_croak(aTHX_ "panic: COND_INIT"); \
+ } \
+ } STMT_END
+
+#define COND_SIGNAL(c) condition_signal(*c)
+#define COND_BROADCAST(c) condition_broadcast(*c)
+#define COND_WAIT(c, m) condition_wait(*c, *m)
+#define COND_DESTROY(c) \
+ STMT_START { \
+ condition_free(*c); \
+ *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 PERL_SET_CONTEXT(t) cthread_set_data(cthread_self(), t)
+#define PERL_GET_CONTEXT cthread_data(cthread_self())
+
+#define INIT_THREADS cthread_init()
+#define YIELD cthread_yield()
+#define ALLOC_THREAD_KEY NOOP
+#define SET_THREAD_SELF(thr) (thr->self = cthread_self())
+
+#endif /* I_MACH_CTHREADS */
+
#ifndef YIELD
# ifdef SCHED_YIELD
# define YIELD SCHED_YIELD
# endif
#endif
-#ifdef PTHREADS_CREATED_JOINABLE
-# define ATTR_JOINABLE PTHREAD_CREATE_JOINABLE
-#else
-# ifdef PTHREAD_CREATE_UNDETACHED
-# define ATTR_JOINABLE PTHREAD_CREATE_UNDETACHED
-# else
-# ifdef __UNDETACHED
-# define ATTR_JOINABLE __UNDETACHED
-# endif
-# endif
+#ifdef __hpux
+# define MUTEX_INIT_NEEDS_MUTEX_ZEROED
#endif
#ifndef MUTEX_INIT
-#define MUTEX_INIT(m) \
+
+# ifdef MUTEX_INIT_NEEDS_MUTEX_ZEROED
+ /* Temporary workaround, true bug is deeper. --jhi 1999-02-25 */
+# define MUTEX_INIT(m) \
+ STMT_START { \
+ Zero((m), 1, perl_mutex); \
+ if (pthread_mutex_init((m), pthread_mutexattr_default)) \
+ Perl_croak(aTHX_ "panic: MUTEX_INIT"); \
+ } STMT_END
+# else
+# define MUTEX_INIT(m) \
STMT_START { \
if (pthread_mutex_init((m), pthread_mutexattr_default)) \
- croak("panic: MUTEX_INIT"); \
+ Perl_croak(aTHX_ "panic: MUTEX_INIT"); \
+ } STMT_END
+# endif
+
+# define MUTEX_LOCK(m) \
+ STMT_START { \
+ if (pthread_mutex_lock((m))) \
+ Perl_croak(aTHX_ "panic: MUTEX_LOCK"); \
} STMT_END
-#define MUTEX_LOCK(m) \
- STMT_START { \
- if (pthread_mutex_lock((m))) \
- croak("panic: MUTEX_LOCK"); \
+
+# define MUTEX_UNLOCK(m) \
+ STMT_START { \
+ if (pthread_mutex_unlock((m))) \
+ Perl_croak(aTHX_ "panic: MUTEX_UNLOCK"); \
+ } STMT_END
+
+# define MUTEX_LOCK_NOCONTEXT(m) \
+ STMT_START { \
+ if (pthread_mutex_lock((m))) \
+ Perl_croak_nocontext("panic: MUTEX_LOCK"); \
} STMT_END
-#define MUTEX_UNLOCK(m) \
- STMT_START { \
- if (pthread_mutex_unlock((m))) \
- croak("panic: MUTEX_UNLOCK"); \
+
+# define MUTEX_UNLOCK_NOCONTEXT(m) \
+ STMT_START { \
+ if (pthread_mutex_unlock((m))) \
+ Perl_croak_nocontext("panic: MUTEX_UNLOCK"); \
} STMT_END
-#define MUTEX_DESTROY(m) \
- STMT_START { \
- if (pthread_mutex_destroy((m))) \
- croak("panic: MUTEX_DESTROY"); \
+
+# define MUTEX_DESTROY(m) \
+ STMT_START { \
+ if (pthread_mutex_destroy((m))) \
+ Perl_croak(aTHX_ "panic: MUTEX_DESTROY"); \
} STMT_END
#endif /* MUTEX_INIT */
#ifndef COND_INIT
-#define COND_INIT(c) \
+# define COND_INIT(c) \
STMT_START { \
if (pthread_cond_init((c), pthread_condattr_default)) \
- croak("panic: COND_INIT"); \
+ Perl_croak(aTHX_ "panic: COND_INIT"); \
} STMT_END
-#define COND_SIGNAL(c) \
- STMT_START { \
- if (pthread_cond_signal((c))) \
- croak("panic: COND_SIGNAL"); \
+
+# define COND_SIGNAL(c) \
+ STMT_START { \
+ if (pthread_cond_signal((c))) \
+ Perl_croak(aTHX_ "panic: COND_SIGNAL"); \
} STMT_END
-#define COND_BROADCAST(c) \
- STMT_START { \
- if (pthread_cond_broadcast((c))) \
- croak("panic: COND_BROADCAST"); \
+
+# define COND_BROADCAST(c) \
+ STMT_START { \
+ if (pthread_cond_broadcast((c))) \
+ Perl_croak(aTHX_ "panic: COND_BROADCAST"); \
} STMT_END
-#define COND_WAIT(c, m) \
- STMT_START { \
- if (pthread_cond_wait((c), (m))) \
- croak("panic: COND_WAIT"); \
+
+# define COND_WAIT(c, m) \
+ STMT_START { \
+ if (pthread_cond_wait((c), (m))) \
+ Perl_croak(aTHX_ "panic: COND_WAIT"); \
} STMT_END
-#define COND_DESTROY(c) \
- STMT_START { \
- if (pthread_cond_destroy((c))) \
- croak("panic: COND_DESTROY"); \
+
+# define COND_DESTROY(c) \
+ STMT_START { \
+ if (pthread_cond_destroy((c))) \
+ Perl_croak(aTHX_ "panic: COND_DESTROY"); \
} STMT_END
#endif /* COND_INIT */
/* DETACH(t) must only be called while holding t->mutex */
#ifndef DETACH
-#define DETACH(t) \
- STMT_START { \
- if (pthread_detach((t)->self)) { \
- MUTEX_UNLOCK(&(t)->mutex); \
- croak("panic: DETACH"); \
- } \
+# define DETACH(t) \
+ STMT_START { \
+ if (pthread_detach((t)->self)) { \
+ MUTEX_UNLOCK(&(t)->mutex); \
+ Perl_croak(aTHX_ "panic: DETACH"); \
+ } \
} STMT_END
#endif /* DETACH */
#ifndef JOIN
-#define JOIN(t, avp) \
- STMT_START { \
- if (pthread_join((t)->self, (void**)(avp))) \
- croak("panic: pthread_join"); \
+# define JOIN(t, avp) \
+ STMT_START { \
+ if (pthread_join((t)->self, (void**)(avp))) \
+ Perl_croak(aTHX_ "panic: pthread_join"); \
} STMT_END
#endif /* JOIN */
-#ifndef SET_THR
-#define SET_THR(t) \
- STMT_START { \
- if (pthread_setspecific(PL_thr_key, (void *) (t))) \
- croak("panic: pthread_setspecific"); \
- } STMT_END
-#endif /* SET_THR */
-
-#ifndef THR
-#define THR ((struct perl_thread *) pthread_getspecific(PL_thr_key))
+#ifndef PERL_GET_CONTEXT
+# define PERL_GET_CONTEXT pthread_getspecific(PL_thr_key)
#endif
-/*
- * dTHR is performance-critical. Here, we only do the pthread_get_specific
- * if there may be more than one thread in existence, otherwise we get thr
- * from thrsv which is cached in the per-interpreter structure.
- * Systems with very fast pthread_get_specific (which should be all systems
- * but unfortunately isn't) may wish to simplify to "...*thr = THR".
- */
-#ifndef dTHR
-# define dTHR \
- struct perl_thread *thr = PL_threadnum? THR : (struct perl_thread*)SvPVX(PL_thrsv)
-#endif /* dTHR */
+#ifndef PERL_SET_CONTEXT
+# define PERL_SET_CONTEXT(t) \
+ STMT_START { \
+ if (pthread_setspecific(PL_thr_key, (void *)(t))) \
+ Perl_croak(aTHX_ "panic: pthread_setspecific"); \
+ } STMT_END
+#endif /* PERL_SET_CONTEXT */
#ifndef INIT_THREADS
# ifdef NEED_PTHREAD_INIT
# define INIT_THREADS pthread_init()
-# else
-# define INIT_THREADS NOOP
# endif
#endif
+#ifndef ALLOC_THREAD_KEY
+# define ALLOC_THREAD_KEY \
+ STMT_START { \
+ if (pthread_key_create(&PL_thr_key, 0)) { \
+ fprintf(stderr, "panic: pthread_key_create"); \
+ exit(1); \
+ } \
+ } STMT_END
+#endif
+
+#ifndef THREAD_RET_TYPE
+# define THREAD_RET_TYPE void *
+# define THREAD_RET_CAST(p) ((void *)(p))
+#endif /* THREAD_RET */
+
+#if defined(USE_THREADS)
+
/* Accessor for per-thread SVs */
-#define THREADSV(i) (thr->threadsvp[i])
+# 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 \
- STMT_START { \
- if (PL_threadnum) \
- MUTEX_LOCK(&PL_sv_mutex); \
- } STMT_END
-
-#define UNLOCK_SV_MUTEX \
- STMT_START { \
- if (PL_threadnum) \
- MUTEX_UNLOCK(&PL_sv_mutex); \
- } STMT_END
-
-/* Likewise for strtab_mutex */
-#define LOCK_STRTAB_MUTEX \
- STMT_START { \
- if (PL_threadnum) \
- MUTEX_LOCK(&PL_strtab_mutex); \
- } STMT_END
-
-#define UNLOCK_STRTAB_MUTEX \
- STMT_START { \
- if (PL_threadnum) \
- MUTEX_UNLOCK(&PL_strtab_mutex); \
- } STMT_END
-
-#ifndef THREAD_RET_TYPE
-# define THREAD_RET_TYPE void *
-# define THREAD_RET_CAST(p) ((void *)(p))
-#endif /* THREAD_RET */
+# 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)
/* Values and macros for thr->flags */
#define ThrSETSTATE(t, s) STMT_START { \
(t)->flags &= ~THRf_STATE_MASK; \
(t)->flags |= (s); \
- DEBUG_S(PerlIO_printf(PerlIO_stderr(), \
+ DEBUG_S(PerlIO_printf(Perl_debug_log, \
"thread %p set to state %d\n", (t), (s))); \
} STMT_END
#define MgCONDP(mg) (&((condpair_t *)(mg->mg_ptr))->cond)
#define MgOWNER(mg) ((condpair_t *)(mg->mg_ptr))->owner
-#else
-/* USE_THREADS is not defined */
-#define MUTEX_LOCK(m)
-#define MUTEX_UNLOCK(m)
-#define MUTEX_INIT(m)
-#define MUTEX_DESTROY(m)
-#define COND_INIT(c)
-#define COND_SIGNAL(c)
-#define COND_BROADCAST(c)
-#define COND_WAIT(c, m)
-#define COND_DESTROY(c)
-#define LOCK_SV_MUTEX
-#define UNLOCK_SV_MUTEX
-#define LOCK_STRTAB_MUTEX
-#define UNLOCK_STRTAB_MUTEX
-
-#define THR
-/* Rats: if dTHR is just blank then the subsequent ";" throws an error */
-#ifdef WIN32
-#define dTHR extern int Perl___notused
-#else
-#define dTHR extern int errno
-#endif
#endif /* USE_THREADS */
+#endif /* USE_THREADS || USE_ITHREADS */
+
+#ifndef MUTEX_LOCK
+# define MUTEX_LOCK(m)
+#endif
+
+#ifndef MUTEX_LOCK_NOCONTEXT
+# define MUTEX_LOCK_NOCONTEXT(m)
+#endif
+
+#ifndef MUTEX_UNLOCK
+# define MUTEX_UNLOCK(m)
+#endif
+
+#ifndef MUTEX_UNLOCK_NOCONTEXT
+# define MUTEX_UNLOCK_NOCONTEXT(m)
+#endif
+
+#ifndef MUTEX_INIT
+# define MUTEX_INIT(m)
+#endif
+
+#ifndef MUTEX_DESTROY
+# define MUTEX_DESTROY(m)
+#endif
+
+#ifndef COND_INIT
+# define COND_INIT(c)
+#endif
+
+#ifndef COND_SIGNAL
+# define COND_SIGNAL(c)
+#endif
+
+#ifndef COND_BROADCAST
+# define COND_BROADCAST(c)
+#endif
+
+#ifndef COND_WAIT
+# define COND_WAIT(c, m)
+#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
+#endif
+
+#ifndef LOCK_CRED_MUTEX
+# define LOCK_CRED_MUTEX
+#endif
+
+#ifndef UNLOCK_CRED_MUTEX
+# define UNLOCK_CRED_MUTEX
+#endif
+
+/* THR, SET_THR, and dTHR are there for compatibility with old versions */
+#ifndef THR
+# define THR PERL_GET_THX
+#endif
+
+#ifndef SET_THR
+# define SET_THR(t) PERL_SET_THX(t)
+#endif
+
+#ifndef dTHR
+# define dTHR dNOOP
+#endif
+
+#ifndef INIT_THREADS
+# define INIT_THREADS NOOP
+#endif
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