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- #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); \
- Perl_croak_nocontext("panic: DETACH"); \
- } \
- } STMT_END
-
- # 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 NEED_PTHREAD_INIT
- # define PTHREAD_CREATE_JOINABLE (1)
- # endif
- # ifdef __OPEN_VM
- # define pthread_addr_t void *
- # endif
- # ifdef VMS
- # define pthread_attr_init(a) pthread_attr_create(a)
- # define PTHREAD_ATTR_SETDETACHSTATE(a,s) pthread_setdetach_np(a,s)
- # define PTHREAD_CREATE(t,a,s,d) pthread_create(t,a,s,d)
- # define pthread_key_create(k,d) pthread_keycreate(k,(pthread_destructor_t)(d))
- # 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)
- # define PTHREAD_ATTR_SETDETACHSTATE(a,s) pthread_attr_setdetachstate(a,&(s))
- # define YIELD pthread_yield(NULL)
- # endif
- # endif
- # define pthread_mutexattr_default NULL
- # define pthread_condattr_default NULL
- #endif
-
- #ifndef PTHREAD_CREATE
- /* You are not supposed to pass NULL as the 2nd arg of PTHREAD_CREATE(). */
- # define PTHREAD_CREATE(t,a,s,d) pthread_create(t,&(a),s,d)
- #endif
-
- #ifndef PTHREAD_ATTR_SETDETACHSTATE
- # 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_nocontext("panic: MUTEX_INIT"); \
- } \
- } STMT_END
-
- #define MUTEX_LOCK(m) mutex_lock(*m)
- #define MUTEX_UNLOCK(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_nocontext("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
- # else
- # ifdef HAS_SCHED_YIELD
- # define YIELD sched_yield()
- # else
- # ifdef HAS_PTHREAD_YIELD
- /* pthread_yield(NULL) platforms are expected
- * to have #defined YIELD for themselves. */
- # define YIELD pthread_yield()
- # endif
- # endif
- # endif
- #endif
-
- #ifdef __hpux
- # define MUTEX_INIT_NEEDS_MUTEX_ZEROED
- #endif
-
- #ifndef MUTEX_INIT
-
- # 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_nocontext("panic: MUTEX_INIT"); \
- } STMT_END
- # else
- # define MUTEX_INIT(m) \
- STMT_START { \
- if (pthread_mutex_init((m), pthread_mutexattr_default)) \
- Perl_croak_nocontext("panic: MUTEX_INIT"); \
- } STMT_END
- # endif
-
- # define MUTEX_LOCK(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))) \
- Perl_croak_nocontext("panic: MUTEX_UNLOCK"); \
- } STMT_END
-
- # define MUTEX_DESTROY(m) \
- STMT_START { \
- if (pthread_mutex_destroy((m))) \
- Perl_croak_nocontext("panic: MUTEX_DESTROY"); \
- } 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"); \
- } STMT_END
-
- # define COND_SIGNAL(c) \
- STMT_START { \
- if (pthread_cond_signal((c))) \
- Perl_croak_nocontext("panic: COND_SIGNAL"); \
- } STMT_END
-
- # define COND_BROADCAST(c) \
- STMT_START { \
- if (pthread_cond_broadcast((c))) \
- Perl_croak_nocontext("panic: COND_BROADCAST"); \
- } STMT_END
-
- # define COND_WAIT(c, m) \
- STMT_START { \
- if (pthread_cond_wait((c), (m))) \
- Perl_croak_nocontext("panic: COND_WAIT"); \
- } STMT_END
-
- # define COND_DESTROY(c) \
- STMT_START { \
- if (pthread_cond_destroy((c))) \
- Perl_croak_nocontext("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); \
- Perl_croak_nocontext("panic: DETACH"); \
- } \
- } 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"); \
- } STMT_END
- #endif /* JOIN */
-
- #ifndef PERL_GET_CONTEXT
- # 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"); \
- } STMT_END
- #endif /* PERL_SET_CONTEXT */
-
- #ifndef INIT_THREADS
- # ifdef NEED_PTHREAD_INIT
- # define INIT_THREADS pthread_init()
- # 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])
-
- /*
- * 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)
-
-
- /* 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 */
-
- #ifndef MUTEX_LOCK
- # define MUTEX_LOCK(m)
- #endif
-
- #ifndef MUTEX_UNLOCK
- # define MUTEX_UNLOCK(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
-