-#if defined(USE_THREADS) || defined(USE_ITHREADS)
+/* thread.h
+ *
+ * Copyright (C) 1999, 2000, 2001, 2002, 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 NETWARE
+# include <nw5thread.h>
+#else
# ifdef OLD_PTHREADS_API /* Here be dragons. */
# define DETACH(t) \
STMT_START { \
# ifdef __OPEN_VM
# define pthread_addr_t void *
# endif
+# 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_ATTR_SETDETACHSTATE(a,s) pthread_setdetach_np(a,s)
# 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(DJGPP) || defined(__OPEN_VM)
+# if defined(DJGPP) || defined(__OPEN_VM) || defined(OEMVS)
# define PTHREAD_ATTR_SETDETACHSTATE(a,s) pthread_attr_setdetachstate(a,&(s))
# define YIELD pthread_yield(NULL)
# endif
# define pthread_mutexattr_default NULL
# define pthread_condattr_default NULL
# endif
+#endif /* NETWARE */
#endif
#ifndef PTHREAD_CREATE
# endif
#endif
+#ifdef DGUX
+# define THREAD_CREATE_NEEDS_STACK (32*1024)
+#endif
+
#ifdef I_MACH_CTHREADS
/* cthreads interface */
} 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
} 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)
-
-/* 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 LOCK_DOLLARZERO_MUTEX MUTEX_LOCK(&PL_dollarzero_mutex)
+# define UNLOCK_DOLLARZERO_MUTEX MUTEX_UNLOCK(&PL_dollarzero_mutex)
-#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 UNLOCK_SV_LOCK_MUTEX
#endif
+#ifndef LOCK_DOLLARZERO_MUTEX
+# define LOCK_DOLLARZERO_MUTEX
+#endif
+
+#ifndef UNLOCK_DOLLARZERO_MUTEX
+# define UNLOCK_DOLLARZERO_MUTEX
+#endif
+
/* THR, SET_THR, and dTHR are there for compatibility with old versions */
#ifndef THR
# define THR PERL_GET_THX