+ 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) = 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
+ /* 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 { \
+ 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 { \
+ 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
+
+# define MUTEX_LOCK(m) \
+ STMT_START { \
+ int _eC_; \
+ if ((_eC_ = pthread_mutex_lock((m)))) \
+ Perl_croak_nocontext("panic: MUTEX_LOCK (%d) [%s:%d]", \
+ _eC_, __FILE__, __LINE__); \
+ } STMT_END
+
+# define MUTEX_UNLOCK(m) \
+ STMT_START { \
+ int _eC_; \
+ if ((_eC_ = pthread_mutex_unlock((m)))) \
+ Perl_croak_nocontext("panic: MUTEX_UNLOCK (%d) [%s:%d]", \
+ _eC_, __FILE__, __LINE__); \
+ } STMT_END
+
+# 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) \
+ STMT_START { \
+ 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 { \
+ 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 { \
+ 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 { \
+ 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 { \
+ 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 */
+
+/* DETACH(t) must only be called while holding t->mutex */
+#ifndef 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 { \
+ 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)