[perl5.git] / thread.h

/*    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 NETWARE
#  include <nw5thread.h>
#else
#  ifdef OLD_PTHREADS_API /* Here be dragons. */
#    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 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 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)
#      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(__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(OEMVS)
#      define PTHREAD_ATTR_SETDETACHSTATE(a,s) pthread_attr_setdetachstate(a,&(s))
#      define YIELD pthread_yield(NULL)
#    endif
#  endif
#  if !defined(__hpux) || !defined(__ux_version) || __ux_version > 1020
#    define pthread_mutexattr_default NULL
#    define pthread_condattr_default  NULL
#  endif
#endif	/* NETWARE */
#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 __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_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

#  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 {						\
	int _eC_;						\
	if ((_eC_ = perl_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_ = perl_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)
#else
#    define PTHREAD_GETSPECIFIC(key) pthread_getspecific(key)
#endif

#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 {						\
	int _eC_;						\
	if ((_eC_ = pthread_setspecific(PL_thr_key, (void *)(t))))	\
	    Perl_croak_nocontext("panic: pthread_setspecific (%d) [%s:%d]",	\
				 _eC_, __FILE__, __LINE__);	\
    } 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)) {		\
            PERL_UNUSED_RESULT(write(2, STR_WITH_LEN("panic: pthread_key_create failed\n"))); \
	    exit(1);						\
	}							\
    } STMT_END
#endif

#ifndef FREE_THREAD_KEY
#  define FREE_THREAD_KEY \
    STMT_START {						\
	pthread_key_delete(PL_thr_key);				\
    } 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 */

#  define LOCK_DOLLARZERO_MUTEX		MUTEX_LOCK(&PL_dollarzero_mutex)
#  define UNLOCK_DOLLARZERO_MUTEX	MUTEX_UNLOCK(&PL_dollarzero_mutex)

#endif /* 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_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
#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:
 */
Commit	Line	Data
d6376244 JH	1	/* thread.h
d6376244 JH	2	*
54ca4ee7	3	* Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
1d325971	4	* by Larry Wall and others
d6376244 JH	5	*
	6	* You may distribute under the terms of either the GNU General Public
	7	* License or the Artistic License, as specified in the README file.
	8	*
	9	*/
	10
3db8f154	11	#if defined(USE_ITHREADS)
12ca11f6	12
fd8cd3a3 DS	13	#if defined(VMS)
	14	#include <builtins.h>
	15	#endif
	16
ea0efc06	17	#ifdef WIN32
d55594ae GS	18	# include <win32thread.h>
d55594ae GS	19	#else
2986a63f JH	20	#ifdef NETWARE
	21	# include <nw5thread.h>
	22	#else
0d85d877	23	# ifdef OLD_PTHREADS_API /* Here be dragons. */
ba869deb GS	24	# define DETACH(t) \
ba869deb GS	25	STMT_START { \
28a80024 MHM	26	int _eC_; \
28a80024 MHM	27	if ((_eC_ = pthread_detach(&(t)->self))) { \
ba869deb	28	MUTEX_UNLOCK(&(t)->mutex); \
28a80024 MHM	29	Perl_croak_nocontext("panic: DETACH (%d) [%s:%d]", \
28a80024 MHM	30	_eC_, __FILE__, __LINE__); \
ba869deb	31	} \
ea0efc06	32	} STMT_END
ba869deb GS	33
	34	# define PERL_GET_CONTEXT Perl_get_context()
	35	# define PERL_SET_CONTEXT(t) Perl_set_context((void*)t)
	36
0d85d877 JH	37	# define PTHREAD_GETSPECIFIC_INT
	38	# ifdef DJGPP
	39	# define pthread_addr_t any_t
	40	# define NEED_PTHREAD_INIT
6dc3770d	41	# define PTHREAD_CREATE_JOINABLE (1)
0d85d877	42	# endif
20b634c2 JH	43	# ifdef OEMVS
20b634c2 JH	44	# define pthread_addr_t void *
20b634c2 JH	45	# define pthread_create(t,a,s,d) pthread_create(t,&(a),s,d)
	46	# define pthread_keycreate pthread_key_create
	47	# endif
0d85d877 JH	48	# ifdef VMS
	49	# define pthread_attr_init(a) pthread_attr_create(a)
	50	# define PTHREAD_ATTR_SETDETACHSTATE(a,s) pthread_setdetach_np(a,s)
6dc3770d	51	# define PTHREAD_CREATE(t,a,s,d) pthread_create(t,a,s,d)
0d85d877 JH	52	# define pthread_key_create(k,d) pthread_keycreate(k,(pthread_destructor_t)(d))
0d85d877 JH	53	# define pthread_mutexattr_init(a) pthread_mutexattr_create(a)
9bbd4fab	54	# define pthread_mutexattr_settype(a,t) pthread_mutexattr_setkind_np(a,t)
0d85d877	55	# endif
2eb25c99 JH	56	# if defined(__hpux) && defined(__ux_version) && __ux_version <= 1020
	57	# define pthread_attr_init(a) pthread_attr_create(a)
	58	/* XXX pthread_setdetach_np() missing in DCE threads on HP-UX 10.20 */
10617789	59	# define PTHREAD_ATTR_SETDETACHSTATE(a,s) (0)
2eb25c99 JH	60	# define PTHREAD_CREATE(t,a,s,d) pthread_create(t,a,s,d)
	61	# define pthread_key_create(k,d) pthread_keycreate(k,(pthread_destructor_t)(d))
	62	# define pthread_mutexattr_init(a) pthread_mutexattr_create(a)
	63	# define pthread_mutexattr_settype(a,t) pthread_mutexattr_setkind_np(a,t)
	64	# endif
043fec90	65	# if defined(DJGPP) \|\| defined(OEMVS)
0d85d877 JH	66	# define PTHREAD_ATTR_SETDETACHSTATE(a,s) pthread_attr_setdetachstate(a,&(s))
	67	# define YIELD pthread_yield(NULL)
	68	# endif
0d85d877	69	# endif
2eb25c99	70	# if !defined(__hpux) \|\| !defined(__ux_version) \|\| __ux_version > 1020
1cfa4ec7	71	# define pthread_mutexattr_default NULL
0d85d877	72	# define pthread_condattr_default NULL
2eb25c99	73	# endif
2986a63f	74	#endif /* NETWARE */
0d85d877 JH	75	#endif
	76
	77	#ifndef PTHREAD_CREATE
	78	/* You are not supposed to pass NULL as the 2nd arg of PTHREAD_CREATE(). */
	79	# define PTHREAD_CREATE(t,a,s,d) pthread_create(t,&(a),s,d)
	80	#endif
	81
	82	#ifndef PTHREAD_ATTR_SETDETACHSTATE
	83	# define PTHREAD_ATTR_SETDETACHSTATE(a,s) pthread_attr_setdetachstate(a,s)
d55594ae	84	#endif
1cfa4ec7	85
ef4af2be JH	86	#ifndef PTHREAD_CREATE_JOINABLE
	87	# ifdef OLD_PTHREAD_CREATE_JOINABLE
	88	# define PTHREAD_CREATE_JOINABLE OLD_PTHREAD_CREATE_JOINABLE
	89	# else
	90	# define PTHREAD_CREATE_JOINABLE 0 /* Panic? No, guess. */
	91	# endif
	92	#endif
	93
93a09687 JM	94	#ifdef __VMS
93a09687 JM	95	/* Default is 1024 on VAX, 8192 otherwise */
3319632a CB	96	# ifdef __ia64
	97	# define THREAD_CREATE_NEEDS_STACK (48*1024)
	98	# else
	99	# define THREAD_CREATE_NEEDS_STACK (32*1024)
	100	# endif
93a09687 JM	101	#endif
93a09687 JM	102
7f3d1cf1 BH	103	#ifdef I_MACH_CTHREADS
	104
	105	/* cthreads interface */
	106
	107	/* #include <mach/cthreads.h> is in perl.h #ifdef I_MACH_CTHREADS */
	108
ba869deb GS	109	#define MUTEX_INIT(m) \
	110	STMT_START { \
	111	*m = mutex_alloc(); \
	112	if (*m) { \
	113	mutex_init(*m); \
	114	} else { \
28a80024 MHM	115	Perl_croak_nocontext("panic: MUTEX_INIT [%s:%d]", \
28a80024 MHM	116	__FILE__, __LINE__); \
ba869deb GS	117	} \
	118	} STMT_END
	119
	120	#define MUTEX_LOCK(m) mutex_lock(*m)
ba869deb	121	#define MUTEX_UNLOCK(m) mutex_unlock(*m)
ba869deb GS	122	#define MUTEX_DESTROY(m) \
	123	STMT_START { \
	124	mutex_free(*m); \
	125	*m = 0; \
	126	} STMT_END
	127
	128	#define COND_INIT(c) \
	129	STMT_START { \
	130	*c = condition_alloc(); \
	131	if (*c) { \
	132	condition_init(*c); \
	133	} \
	134	else { \
28a80024 MHM	135	Perl_croak_nocontext("panic: COND_INIT [%s:%d]", \
28a80024 MHM	136	__FILE__, __LINE__); \
ba869deb GS	137	} \
ba869deb GS	138	} STMT_END
7f3d1cf1 BH	139
	140	#define COND_SIGNAL(c) condition_signal(*c)
	141	#define COND_BROADCAST(c) condition_broadcast(*c)
	142	#define COND_WAIT(c, m) condition_wait(c, m)
ba869deb GS	143	#define COND_DESTROY(c) \
	144	STMT_START { \
	145	condition_free(*c); \
	146	*c = 0; \
	147	} STMT_END
7f3d1cf1 BH	148
	149	#define THREAD_CREATE(thr, f) (thr->self = cthread_fork(f, thr), 0)
	150	#define THREAD_POST_CREATE(thr)
	151
	152	#define THREAD_RET_TYPE any_t
	153	#define THREAD_RET_CAST(x) ((any_t) x)
	154
	155	#define DETACH(t) cthread_detach(t->self)
a062e10d	156	#define JOIN(t, avp) (*(avp) = MUTABLE_AV(cthread_join(t->self)))
7f3d1cf1	157
ba869deb GS	158	#define PERL_SET_CONTEXT(t) cthread_set_data(cthread_self(), t)
ba869deb GS	159	#define PERL_GET_CONTEXT cthread_data(cthread_self())
7f3d1cf1 BH	160
	161	#define INIT_THREADS cthread_init()
	162	#define YIELD cthread_yield()
ba869deb	163	#define ALLOC_THREAD_KEY NOOP
e1b5da64	164	#define FREE_THREAD_KEY NOOP
7f3d1cf1 BH	165	#define SET_THREAD_SELF(thr) (thr->self = cthread_self())
	166
	167	#endif /* I_MACH_CTHREADS */
	168
1cfa4ec7	169	#ifndef YIELD
e7a4f449 JH	170	# ifdef SCHED_YIELD
	171	# define YIELD SCHED_YIELD
	172	# else
	173	# ifdef HAS_SCHED_YIELD
	174	# define YIELD sched_yield()
	175	# else
	176	# ifdef HAS_PTHREAD_YIELD
	177	/* pthread_yield(NULL) platforms are expected
	178	* to have #defined YIELD for themselves. */
	179	# define YIELD pthread_yield()
	180	# endif
	181	# endif
	182	# endif
9731c6ca	183	#endif
11343788	184
227c31c3 JH	185	#ifdef __hpux
	186	# define MUTEX_INIT_NEEDS_MUTEX_ZEROED
	187	#endif
	188
ea0efc06	189	#ifndef MUTEX_INIT
ba869deb GS	190
ba869deb GS	191	# ifdef MUTEX_INIT_NEEDS_MUTEX_ZEROED
227c31c3	192	/* Temporary workaround, true bug is deeper. --jhi 1999-02-25 */
ba869deb	193	# define MUTEX_INIT(m) \
227c31c3	194	STMT_START { \
28a80024	195	int _eC_; \
227c31c3	196	Zero((m), 1, perl_mutex); \
28a80024 MHM	197	if ((_eC_ = pthread_mutex_init((m), pthread_mutexattr_default))) \
	198	Perl_croak_nocontext("panic: MUTEX_INIT (%d) [%s:%d]", \
	199	_eC_, __FILE__, __LINE__); \
227c31c3	200	} STMT_END
ba869deb GS	201	# else
ba869deb GS	202	# define MUTEX_INIT(m) \
ea0efc06	203	STMT_START { \
28a80024 MHM	204	int _eC_; \
	205	if ((_eC_ = pthread_mutex_init((m), pthread_mutexattr_default))) \
	206	Perl_croak_nocontext("panic: MUTEX_INIT (%d) [%s:%d]", \
	207	_eC_, __FILE__, __LINE__); \
ea0efc06	208	} STMT_END
ba869deb GS	209	# endif
ba869deb GS	210
3baee7cc JH	211	# ifdef PERL_TSA_ACTIVE
	212	# define perl_pthread_mutex_lock(m) perl_tsa_mutex_lock(m)
	213	# define perl_pthread_mutex_unlock(m) perl_tsa_mutex_unlock(m)
	214	# else
	215	# define perl_pthread_mutex_lock(m) pthread_mutex_lock(m)
	216	# define perl_pthread_mutex_unlock(m) pthread_mutex_unlock(m)
	217	# endif
	218
ba869deb GS	219	# define MUTEX_LOCK(m) \
ba869deb GS	220	STMT_START { \
28a80024	221	int _eC_; \
3baee7cc	222	if ((_eC_ = perl_pthread_mutex_lock((m)))) \
28a80024 MHM	223	Perl_croak_nocontext("panic: MUTEX_LOCK (%d) [%s:%d]", \
28a80024 MHM	224	_eC_, __FILE__, __LINE__); \
cea2e8a9	225	} STMT_END
ba869deb	226
efc57feb	227	# define MUTEX_UNLOCK(m) \
ba869deb	228	STMT_START { \
28a80024	229	int _eC_; \
3baee7cc	230	if ((_eC_ = perl_pthread_mutex_unlock((m)))) \
28a80024 MHM	231	Perl_croak_nocontext("panic: MUTEX_UNLOCK (%d) [%s:%d]", \
28a80024 MHM	232	_eC_, __FILE__, __LINE__); \
ea0efc06	233	} STMT_END
ba869deb GS	234
	235	# define MUTEX_DESTROY(m) \
	236	STMT_START { \
28a80024 MHM	237	int _eC_; \
	238	if ((_eC_ = pthread_mutex_destroy((m)))) \
	239	Perl_croak_nocontext("panic: MUTEX_DESTROY (%d) [%s:%d]", \
	240	_eC_, __FILE__, __LINE__); \
ea0efc06 MB	241	} STMT_END
	242	#endif /* MUTEX_INIT */
	243
	244	#ifndef COND_INIT
ba869deb	245	# define COND_INIT(c) \
ea0efc06	246	STMT_START { \
28a80024 MHM	247	int _eC_; \
	248	if ((_eC_ = pthread_cond_init((c), pthread_condattr_default))) \
	249	Perl_croak_nocontext("panic: COND_INIT (%d) [%s:%d]", \
	250	_eC_, __FILE__, __LINE__); \
ea0efc06	251	} STMT_END
ba869deb GS	252
	253	# define COND_SIGNAL(c) \
	254	STMT_START { \
28a80024 MHM	255	int _eC_; \
	256	if ((_eC_ = pthread_cond_signal((c)))) \
	257	Perl_croak_nocontext("panic: COND_SIGNAL (%d) [%s:%d]", \
	258	_eC_, __FILE__, __LINE__); \
ea0efc06	259	} STMT_END
ba869deb GS	260
	261	# define COND_BROADCAST(c) \
	262	STMT_START { \
28a80024 MHM	263	int _eC_; \
	264	if ((_eC_ = pthread_cond_broadcast((c)))) \
	265	Perl_croak_nocontext("panic: COND_BROADCAST (%d) [%s:%d]", \
	266	_eC_, __FILE__, __LINE__); \
ea0efc06	267	} STMT_END
ba869deb GS	268
	269	# define COND_WAIT(c, m) \
	270	STMT_START { \
28a80024 MHM	271	int _eC_; \
	272	if ((_eC_ = pthread_cond_wait((c), (m)))) \
	273	Perl_croak_nocontext("panic: COND_WAIT (%d) [%s:%d]", \
	274	_eC_, __FILE__, __LINE__); \
ea0efc06	275	} STMT_END
ba869deb GS	276
	277	# define COND_DESTROY(c) \
	278	STMT_START { \
28a80024 MHM	279	int _eC_; \
	280	if ((_eC_ = pthread_cond_destroy((c)))) \
	281	Perl_croak_nocontext("panic: COND_DESTROY (%d) [%s:%d]", \
	282	_eC_, __FILE__, __LINE__); \
ea0efc06 MB	283	} STMT_END
ea0efc06 MB	284	#endif /* COND_INIT */
33f46ff6	285
f826a10b	286	/* DETACH(t) must only be called while holding t->mutex */
ea0efc06	287	#ifndef DETACH
ba869deb GS	288	# define DETACH(t) \
ba869deb GS	289	STMT_START { \
28a80024 MHM	290	int _eC_; \
28a80024 MHM	291	if ((_eC_ = pthread_detach((t)->self))) { \
ba869deb	292	MUTEX_UNLOCK(&(t)->mutex); \
28a80024 MHM	293	Perl_croak_nocontext("panic: DETACH (%d) [%s:%d]", \
28a80024 MHM	294	_eC_, __FILE__, __LINE__); \
ba869deb	295	} \
ea0efc06 MB	296	} STMT_END
ea0efc06 MB	297	#endif /* DETACH */
33f46ff6	298
ea0efc06	299	#ifndef JOIN
ba869deb GS	300	# define JOIN(t, avp) \
ba869deb GS	301	STMT_START { \
28a80024 MHM	302	int _eC_; \
	303	if ((_eC_ = pthread_join((t)->self, (void**)(avp)))) \
	304	Perl_croak_nocontext("panic: pthread_join (%d) [%s:%d]", \
	305	_eC_, __FILE__, __LINE__); \
ea0efc06 MB	306	} STMT_END
	307	#endif /* JOIN */
	308
0953243c JH	309	/* Use an unchecked fetch of thread-specific data instead of a checked one.
	310	* It would fail if the key were bogus, but if the key were bogus then
	311	* Really Bad Things would be happening anyway. --dan */
026b9da6	312	#if (defined(__ALPHA) && (__VMS_VER >= 70000000)) \|\| \
cb23e6a4	313	(defined(__alpha) && defined(__osf__) && !defined(__GNUC__)) /* Available only on >= 4.0 */
8b8b35ab JH	314	# define HAS_PTHREAD_UNCHECKED_GETSPECIFIC_NP /* Configure test needed */
	315	#endif
	316
	317	#ifdef HAS_PTHREAD_UNCHECKED_GETSPECIFIC_NP
	318	# define PTHREAD_GETSPECIFIC(key) pthread_unchecked_getspecific_np(key)
	319	#else
6cfe8af5	320	# define PTHREAD_GETSPECIFIC(key) pthread_getspecific(key)
8b8b35ab JH	321	#endif
	322
	323	#ifndef PERL_GET_CONTEXT
	324	# define PERL_GET_CONTEXT PTHREAD_GETSPECIFIC(PL_thr_key)
ba869deb GS	325	#endif
	326
	327	#ifndef PERL_SET_CONTEXT
	328	# define PERL_SET_CONTEXT(t) \
	329	STMT_START { \
28a80024 MHM	330	int _eC_; \
	331	if ((_eC_ = pthread_setspecific(PL_thr_key, (void *)(t)))) \
	332	Perl_croak_nocontext("panic: pthread_setspecific (%d) [%s:%d]", \
	333	_eC_, __FILE__, __LINE__); \
ea0efc06	334	} STMT_END
ba869deb	335	#endif /* PERL_SET_CONTEXT */
ea0efc06	336
1feb2720 GS	337	#ifndef INIT_THREADS
	338	# ifdef NEED_PTHREAD_INIT
	339	# define INIT_THREADS pthread_init()
	340	# endif
0d85d877	341	#endif
ea0efc06	342
ba869deb GS	343	#ifndef ALLOC_THREAD_KEY
	344	# define ALLOC_THREAD_KEY \
	345	STMT_START { \
23dd8dc9	346	if (pthread_key_create(&PL_thr_key, 0)) { \
b469f1e0	347	PERL_UNUSED_RESULT(write(2, STR_WITH_LEN("panic: pthread_key_create failed\n"))); \
c44d3fdb GS	348	exit(1); \
c44d3fdb GS	349	} \
ba869deb GS	350	} STMT_END
	351	#endif
	352
e1b5da64 GS	353	#ifndef FREE_THREAD_KEY
	354	# define FREE_THREAD_KEY \
	355	STMT_START { \
	356	pthread_key_delete(PL_thr_key); \
	357	} STMT_END
	358	#endif
	359
50dd6e57	360	#ifndef PTHREAD_ATFORK
144e72cb RS	361	# ifdef HAS_PTHREAD_ATFORK
144e72cb RS	362	# define PTHREAD_ATFORK(prepare,parent,child) \
de992003	363	pthread_atfork(prepare,parent,child)
144e72cb	364	# else
8ff9412f RS	365	# define PTHREAD_ATFORK(prepare,parent,child) \
8ff9412f RS	366	NOOP
144e72cb	367	# endif
50dd6e57 GS	368	#endif
50dd6e57 GS	369
1feb2720 GS	370	#ifndef THREAD_RET_TYPE
	371	# define THREAD_RET_TYPE void *
	372	# define THREAD_RET_CAST(p) ((void *)(p))
	373	#endif /* THREAD_RET */
	374
e2975953 JH	375	# define LOCK_DOLLARZERO_MUTEX MUTEX_LOCK(&PL_dollarzero_mutex)
	376	# define UNLOCK_DOLLARZERO_MUTEX MUTEX_UNLOCK(&PL_dollarzero_mutex)
	377
3db8f154	378	#endif /* USE_ITHREADS */
1feb2720 GS	379
	380	#ifndef MUTEX_LOCK
	381	# define MUTEX_LOCK(m)
	382	#endif
	383
1feb2720 GS	384	#ifndef MUTEX_UNLOCK
	385	# define MUTEX_UNLOCK(m)
	386	#endif
1feb2720 GS	387
	388	#ifndef MUTEX_INIT
	389	# define MUTEX_INIT(m)
	390	#endif
	391
	392	#ifndef MUTEX_DESTROY
	393	# define MUTEX_DESTROY(m)
	394	#endif
	395
	396	#ifndef COND_INIT
	397	# define COND_INIT(c)
	398	#endif
	399
	400	#ifndef COND_SIGNAL
	401	# define COND_SIGNAL(c)
	402	#endif
	403
	404	#ifndef COND_BROADCAST
	405	# define COND_BROADCAST(c)
	406	#endif
	407
	408	#ifndef COND_WAIT
	409	# define COND_WAIT(c, m)
	410	#endif
	411
	412	#ifndef COND_DESTROY
	413	# define COND_DESTROY(c)
	414	#endif
	415
e2975953 JH	416	#ifndef LOCK_DOLLARZERO_MUTEX
	417	# define LOCK_DOLLARZERO_MUTEX
	418	#endif
	419
	420	#ifndef UNLOCK_DOLLARZERO_MUTEX
	421	# define UNLOCK_DOLLARZERO_MUTEX
	422	#endif
	423
ba869deb	424	/* THR, SET_THR, and dTHR are there for compatibility with old versions */
1feb2720	425	#ifndef THR
ba869deb GS	426	# define THR PERL_GET_THX
	427	#endif
	428
	429	#ifndef SET_THR
	430	# define SET_THR(t) PERL_SET_THX(t)
1feb2720 GS	431	#endif
	432
	433	#ifndef dTHR
	434	# define dTHR dNOOP
	435	#endif
	436
	437	#ifndef INIT_THREADS
	438	# define INIT_THREADS NOOP
	439	#endif
e9a8c099 MHM	440
e9a8c099 MHM	441	/*
14d04a33	442	* ex: set ts=8 sts=4 sw=4 et:
e9a8c099	443	*/