-#ifdef USE_THREADS
+/* 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>
+#endif
#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 { \
+ int _eC_; \
+ if ((_eC_ = pthread_detach(&(t)->self))) { \
+ MUTEX_UNLOCK(&(t)->mutex); \
+ Perl_croak_nocontext("panic: DETACH (%d) [%s:%d]", \
+ _eC_, __FILE__, __LINE__); \
+ } \
} 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 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(__hpux) && defined(__ux_version) && __ux_version <= 1020
+# define pthread_attr_init(a) pthread_attr_create(a)
+ /* XXX pthread_setdetach_np() missing in DCE threads on HP-UX 10.20 */
+# define PTHREAD_ATTR_SETDETACHSTATE(a,s) (0)
+# 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(OEMVS)
# define PTHREAD_ATTR_SETDETACHSTATE(a,s) pthread_attr_setdetachstate(a,&(s))
# define YIELD pthread_yield(NULL)
# endif
# endif
-# ifndef VMS
+# if !defined(__hpux) || !defined(__ux_version) || __ux_version > 1020
# define pthread_mutexattr_default NULL
# define pthread_condattr_default NULL
# endif
# 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 __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 */
+
+/* #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 [%s:%d]", \
+ __FILE__, __LINE__); \
+ } \
+ } 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 [%s:%d]", \
+ __FILE__, __LINE__); \
+ } \
+ } 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_RET_TYPE any_t
+
+#define DETACH(t) cthread_detach(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())
+
+#define INIT_THREADS cthread_init()
+#define YIELD cthread_yield()
+#define ALLOC_THREAD_KEY NOOP
+#define FREE_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
+# 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
-#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 { \
+ int _eC_; \
+ Zero((m), 1, perl_mutex); \
+ 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)) \
- croak("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
-#define MUTEX_LOCK(m) \
- STMT_START { \
- if (pthread_mutex_lock((m))) \
- croak("panic: MUTEX_LOCK"); \
+# 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 { \
+ dSAVE_ERRNO; \
+ int _eC_; \
+ if ((_eC_ = perl_pthread_mutex_lock((m)))) \
+ Perl_croak_nocontext("panic: MUTEX_LOCK (%d) [%s:%d]",\
+ _eC_, __FILE__, __LINE__); \
+ RESTORE_ERRNO; \
} STMT_END
-#define MUTEX_UNLOCK(m) \
- STMT_START { \
- if (pthread_mutex_unlock((m))) \
- croak("panic: MUTEX_UNLOCK"); \
+
+# define MUTEX_UNLOCK(m) \
+ STMT_START { \
+ dSAVE_ERRNO; /* Shouldn't be necessary as panics if fails */\
+ int _eC_; \
+ if ((_eC_ = perl_pthread_mutex_unlock((m)))) { \
+ Perl_croak_nocontext( \
+ "panic: MUTEX_UNLOCK (%d) [%s:%d]", \
+ _eC_, __FILE__, __LINE__); \
+ } \
+ RESTORE_ERRNO; \
} STMT_END
-#define MUTEX_DESTROY(m) \
- STMT_START { \
- if (pthread_mutex_destroy((m))) \
- croak("panic: MUTEX_DESTROY"); \
+
+# define MUTEX_DESTROY(m) \
+ STMT_START { \
+ 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) \
+# define COND_INIT(c) \
STMT_START { \
- if (pthread_cond_init((c), pthread_condattr_default)) \
- croak("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))) \
- croak("panic: COND_SIGNAL"); \
+
+# define COND_SIGNAL(c) \
+ STMT_START { \
+ 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))) \
- croak("panic: COND_BROADCAST"); \
+
+# define COND_BROADCAST(c) \
+ STMT_START { \
+ 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))) \
- croak("panic: COND_WAIT"); \
+
+# define COND_WAIT(c, m) \
+ STMT_START { \
+ 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))) \
- croak("panic: COND_DESTROY"); \
+
+# define COND_DESTROY(c) \
+ STMT_START { \
+ 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 */
+#if defined(MUTEX_LOCK) && defined(MUTEX_UNLOCK) \
+ && defined(COND_SIGNAL) && defined(COND_WAIT)
+
+/* These emulate native many-reader/1-writer locks.
+ * Basically a locking reader just locks the semaphore long enough to increment
+ * a counter; and similarly decrements it when when through. Any writer will
+ * run only when the count of readers is 0. That is because it blocks on that
+ * semaphore (doing a COND_WAIT) until it gets control of it, which won't
+ * happen unless the count becomes 0. ALL readers and other writers are then
+ * blocked until it releases the semaphore. The reader whose unlocking causes
+ * the count to become 0 signals any waiting writers, and the system guarantees
+ * that only one gets control at a time */
+
+# define PERL_READ_LOCK(mutex) \
+ STMT_START { \
+ MUTEX_LOCK(&(mutex)->lock); \
+ (mutex)->readers_count++; \
+ MUTEX_UNLOCK(&(mutex)->lock); \
+ } STMT_END
+
+# define PERL_READ_UNLOCK(mutex) \
+ STMT_START { \
+ MUTEX_LOCK(&(mutex)->lock); \
+ (mutex)->readers_count--; \
+ if ((mutex)->readers_count <= 0) { \
+ assert((mutex)->readers_count == 0); \
+ COND_SIGNAL(&(mutex)->wakeup); \
+ (mutex)->readers_count = 0; \
+ } \
+ MUTEX_UNLOCK(&(mutex)->lock); \
+ } STMT_END
+
+# define PERL_WRITE_LOCK(mutex) \
+ STMT_START { \
+ MUTEX_LOCK(&(mutex)->lock); \
+ do { \
+ if ((mutex)->readers_count <= 0) { \
+ assert((mutex)->readers_count == 0); \
+ (mutex)->readers_count = 0; \
+ break; \
+ } \
+ COND_WAIT(&(mutex)->wakeup, &(mutex)->lock); \
+ } \
+ while (1); \
+ \
+ /* Here, the mutex is locked, with no readers */ \
+ } STMT_END
+
+# define PERL_WRITE_UNLOCK(mutex) \
+ STMT_START { \
+ COND_SIGNAL(&(mutex)->wakeup); \
+ MUTEX_UNLOCK(&(mutex)->lock); \
+ } STMT_END
+
+# define PERL_RW_MUTEX_INIT(mutex) \
+ STMT_START { \
+ MUTEX_INIT(&(mutex)->lock); \
+ COND_INIT(&(mutex)->wakeup); \
+ (mutex)->readers_count = 0; \
+ } STMT_END
+
+# define PERL_RW_MUTEX_DESTROY(mutex) \
+ STMT_START { \
+ COND_DESTROY(&(mutex)->wakeup); \
+ MUTEX_DESTROY(&(mutex)->lock); \
+ } STMT_END
+
+#endif
+
/* 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 { \
+ int _eC_; \
+ if ((_eC_ = pthread_detach((t)->self))) { \
+ MUTEX_UNLOCK(&(t)->mutex); \
+ 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))) \
- croak("panic: pthread_join"); \
+# define JOIN(t, avp) \
+ STMT_START { \
+ 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 */
-#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 */
+/* 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
-#ifndef THR
-#define THR ((struct perl_thread *) pthread_getspecific(PL_thr_key))
+#ifdef HAS_PTHREAD_UNCHECKED_GETSPECIFIC_NP
+# define PTHREAD_GETSPECIFIC(key) pthread_unchecked_getspecific_np(key)
+#else
+# define PTHREAD_GETSPECIFIC(key) pthread_getspecific(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 */
+#if defined(PERL_THREAD_LOCAL) && !defined(PERL_GET_CONTEXT) && !defined(PERL_SET_CONTEXT) && !defined(__cplusplus)
+/* Use C11 thread-local storage, where possible.
+ * Frustratingly we can't use it for C++ extensions, C++ and C disagree on the
+ * syntax used for thread local storage, meaning that the working token that
+ * Configure probed for C turns out to be a compiler error on C++. Great.
+ * (Well, unless one or both is supporting non-standard syntax as an extension)
+ * As Configure doesn't have a way to probe for C++ dialects, we just take the
+ * safe option and do the same as 5.34.0 and earlier - use pthreads on C++.
+ * Of course, if C++ XS extensions really want to avoid *all* this overhead,
+ * they should #define PERL_NO_GET_CONTEXT and pass aTHX/aTHX_ explicitly) */
+# define PERL_USE_THREAD_LOCAL
+extern PERL_THREAD_LOCAL void *PL_current_context;
+
+# define PERL_GET_CONTEXT PL_current_context
+
+/* We must also call pthread_setspecific() always, as C++ code has to read it
+ * with pthreads (the #else side just below) */
+
+# define PERL_SET_CONTEXT(t) \
+ STMT_START { \
+ int _eC_; \
+ if ((_eC_ = pthread_setspecific(PL_thr_key, \
+ PL_current_context = (void *)(t)))) \
+ Perl_croak_nocontext("panic: pthread_setspecific (%d) [%s:%d]", \
+ _eC_, __FILE__, __LINE__); \
+ } STMT_END
+
+#else
+/* else fall back to pthreads */
+
+# ifndef PERL_GET_CONTEXT
+# define PERL_GET_CONTEXT PTHREAD_GETSPECIFIC(PL_thr_key)
+# endif
+
+/* For C++ extensions built on a system where the C compiler provides thread
+ * local storage that call PERL_SET_CONTEXT() also need to set
+ * PL_current_context, so need to call into C code to do this.
+ * To avoid exploding code complexity, do this also on C platforms that don't
+ * support thread local storage. PERL_SET_CONTEXT is not called that often. */
+
+# ifndef PERL_SET_CONTEXT
+# define PERL_SET_CONTEXT(t) Perl_set_context((void*)t)
+# endif /* PERL_SET_CONTEXT */
+#endif /* PERL_THREAD_LOCAL */
#ifndef INIT_THREADS
# ifdef NEED_PTHREAD_INIT
# define INIT_THREADS pthread_init()
-# else
-# define INIT_THREADS NOOP
# endif
#endif
-/* 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.
- */
-#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); \
+#ifndef ALLOC_THREAD_KEY
+# define ALLOC_THREAD_KEY \
+ STMT_START { \
+ 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
+#endif
-/* Likewise for strtab_mutex */
-#define LOCK_STRTAB_MUTEX \
- STMT_START { \
- if (PL_threadnum) \
- MUTEX_LOCK(&PL_strtab_mutex); \
+#ifndef FREE_THREAD_KEY
+# define FREE_THREAD_KEY \
+ STMT_START { \
+ pthread_key_delete(PL_thr_key); \
} STMT_END
+#endif
-#define UNLOCK_STRTAB_MUTEX \
- STMT_START { \
- if (PL_threadnum) \
- MUTEX_UNLOCK(&PL_strtab_mutex); \
- } STMT_END
+#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 */
+# define LOCK_DOLLARZERO_MUTEX MUTEX_LOCK(&PL_dollarzero_mutex)
+# define UNLOCK_DOLLARZERO_MUTEX MUTEX_UNLOCK(&PL_dollarzero_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
+#endif /* USE_ITHREADS */
-#define THRf_DID_DIE 8
+#ifndef MUTEX_LOCK
+# define MUTEX_LOCK(m) NOOP
+#endif
-/* 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(PerlIO_stderr(), \
- "thread %p set to state %d\n", (t), (s))); \
- } STMT_END
+#ifndef MUTEX_UNLOCK
+# define MUTEX_UNLOCK(m) NOOP
+#endif
-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;
+#ifndef MUTEX_INIT
+# define MUTEX_INIT(m) NOOP
+#endif
-#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
+#ifndef MUTEX_DESTROY
+# define MUTEX_DESTROY(m) NOOP
+#endif
-#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
+#ifndef COND_INIT
+# define COND_INIT(c) NOOP
+#endif
+
+#ifndef COND_SIGNAL
+# define COND_SIGNAL(c) NOOP
+#endif
+
+#ifndef COND_BROADCAST
+# define COND_BROADCAST(c) NOOP
+#endif
+
+#ifndef COND_WAIT
+# define COND_WAIT(c, m) NOOP
+#endif
+
+#ifndef COND_DESTROY
+# define COND_DESTROY(c) NOOP
+#endif
+
+#ifndef PERL_READ_LOCK
+# define PERL_READ_LOCK NOOP
+# define PERL_READ_UNLOCK NOOP
+# define PERL_WRITE_LOCK NOOP
+# define PERL_WRITE_UNLOCK NOOP
+# define PERL_RW_MUTEX_INIT NOOP
+# define PERL_RW_MUTEX_DESTROY NOOP
#endif
-#endif /* USE_THREADS */
+
+#ifndef LOCK_DOLLARZERO_MUTEX
+# define LOCK_DOLLARZERO_MUTEX NOOP
+#endif
+
+#ifndef UNLOCK_DOLLARZERO_MUTEX
+# define UNLOCK_DOLLARZERO_MUTEX NOOP
+#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
+
+/*
+ * ex: set ts=8 sts=4 sw=4 et:
+ */
https://perl5.git.perl.org / perl5.git / blobdiff