[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 DGUX
#  define THREAD_CREATE_NEEDS_STACK (32*1024)
#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

#  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)
#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)) {		\
            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

/*
 * Local variables:
 * c-indentation-style: bsd
 * c-basic-offset: 4
 * indent-tabs-mode: nil
 * End:
 *
 * 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
5cbe9849	94	#ifdef DGUX
95036ac7	95	# define THREAD_CREATE_NEEDS_STACK (32*1024)
5cbe9849 JH	96	#endif
5cbe9849 JH	97
93a09687 JM	98	#ifdef __VMS
93a09687 JM	99	/* Default is 1024 on VAX, 8192 otherwise */
3319632a CB	100	# ifdef __ia64
	101	# define THREAD_CREATE_NEEDS_STACK (48*1024)
	102	# else
	103	# define THREAD_CREATE_NEEDS_STACK (32*1024)
	104	# endif
93a09687 JM	105	#endif
93a09687 JM	106
7f3d1cf1 BH	107	#ifdef I_MACH_CTHREADS
	108
	109	/* cthreads interface */
	110
	111	/* #include <mach/cthreads.h> is in perl.h #ifdef I_MACH_CTHREADS */
	112
ba869deb GS	113	#define MUTEX_INIT(m) \
	114	STMT_START { \
	115	*m = mutex_alloc(); \
	116	if (*m) { \
	117	mutex_init(*m); \
	118	} else { \
28a80024 MHM	119	Perl_croak_nocontext("panic: MUTEX_INIT [%s:%d]", \
28a80024 MHM	120	__FILE__, __LINE__); \
ba869deb GS	121	} \
	122	} STMT_END
	123
	124	#define MUTEX_LOCK(m) mutex_lock(*m)
ba869deb	125	#define MUTEX_UNLOCK(m) mutex_unlock(*m)
ba869deb GS	126	#define MUTEX_DESTROY(m) \
	127	STMT_START { \
	128	mutex_free(*m); \
	129	*m = 0; \
	130	} STMT_END
	131
	132	#define COND_INIT(c) \
	133	STMT_START { \
	134	*c = condition_alloc(); \
	135	if (*c) { \
	136	condition_init(*c); \
	137	} \
	138	else { \
28a80024 MHM	139	Perl_croak_nocontext("panic: COND_INIT [%s:%d]", \
28a80024 MHM	140	__FILE__, __LINE__); \
ba869deb GS	141	} \
ba869deb GS	142	} STMT_END
7f3d1cf1 BH	143
	144	#define COND_SIGNAL(c) condition_signal(*c)
	145	#define COND_BROADCAST(c) condition_broadcast(*c)
	146	#define COND_WAIT(c, m) condition_wait(c, m)
ba869deb GS	147	#define COND_DESTROY(c) \
	148	STMT_START { \
	149	condition_free(*c); \
	150	*c = 0; \
	151	} STMT_END
7f3d1cf1 BH	152
	153	#define THREAD_CREATE(thr, f) (thr->self = cthread_fork(f, thr), 0)
	154	#define THREAD_POST_CREATE(thr)
	155
	156	#define THREAD_RET_TYPE any_t
	157	#define THREAD_RET_CAST(x) ((any_t) x)
	158
	159	#define DETACH(t) cthread_detach(t->self)
a062e10d	160	#define JOIN(t, avp) (*(avp) = MUTABLE_AV(cthread_join(t->self)))
7f3d1cf1	161
ba869deb GS	162	#define PERL_SET_CONTEXT(t) cthread_set_data(cthread_self(), t)
ba869deb GS	163	#define PERL_GET_CONTEXT cthread_data(cthread_self())
7f3d1cf1 BH	164
	165	#define INIT_THREADS cthread_init()
	166	#define YIELD cthread_yield()
ba869deb	167	#define ALLOC_THREAD_KEY NOOP
e1b5da64	168	#define FREE_THREAD_KEY NOOP
7f3d1cf1 BH	169	#define SET_THREAD_SELF(thr) (thr->self = cthread_self())
	170
	171	#endif /* I_MACH_CTHREADS */
	172
1cfa4ec7	173	#ifndef YIELD
e7a4f449 JH	174	# ifdef SCHED_YIELD
	175	# define YIELD SCHED_YIELD
	176	# else
	177	# ifdef HAS_SCHED_YIELD
	178	# define YIELD sched_yield()
	179	# else
	180	# ifdef HAS_PTHREAD_YIELD
	181	/* pthread_yield(NULL) platforms are expected
	182	* to have #defined YIELD for themselves. */
	183	# define YIELD pthread_yield()
	184	# endif
	185	# endif
	186	# endif
9731c6ca	187	#endif
11343788	188
227c31c3 JH	189	#ifdef __hpux
	190	# define MUTEX_INIT_NEEDS_MUTEX_ZEROED
	191	#endif
	192
ea0efc06	193	#ifndef MUTEX_INIT
ba869deb GS	194
ba869deb GS	195	# ifdef MUTEX_INIT_NEEDS_MUTEX_ZEROED
227c31c3	196	/* Temporary workaround, true bug is deeper. --jhi 1999-02-25 */
ba869deb	197	# define MUTEX_INIT(m) \
227c31c3	198	STMT_START { \
28a80024	199	int _eC_; \
227c31c3	200	Zero((m), 1, perl_mutex); \
28a80024 MHM	201	if ((_eC_ = pthread_mutex_init((m), pthread_mutexattr_default))) \
	202	Perl_croak_nocontext("panic: MUTEX_INIT (%d) [%s:%d]", \
	203	_eC_, __FILE__, __LINE__); \
227c31c3	204	} STMT_END
ba869deb GS	205	# else
ba869deb GS	206	# define MUTEX_INIT(m) \
ea0efc06	207	STMT_START { \
28a80024 MHM	208	int _eC_; \
	209	if ((_eC_ = pthread_mutex_init((m), pthread_mutexattr_default))) \
	210	Perl_croak_nocontext("panic: MUTEX_INIT (%d) [%s:%d]", \
	211	_eC_, __FILE__, __LINE__); \
ea0efc06	212	} STMT_END
ba869deb GS	213	# endif
	214
	215	# define MUTEX_LOCK(m) \
	216	STMT_START { \
28a80024 MHM	217	int _eC_; \
	218	if ((_eC_ = pthread_mutex_lock((m)))) \
	219	Perl_croak_nocontext("panic: MUTEX_LOCK (%d) [%s:%d]", \
	220	_eC_, __FILE__, __LINE__); \
cea2e8a9	221	} STMT_END
ba869deb	222
efc57feb	223	# define MUTEX_UNLOCK(m) \
ba869deb	224	STMT_START { \
28a80024 MHM	225	int _eC_; \
	226	if ((_eC_ = pthread_mutex_unlock((m)))) \
	227	Perl_croak_nocontext("panic: MUTEX_UNLOCK (%d) [%s:%d]", \
	228	_eC_, __FILE__, __LINE__); \
ea0efc06	229	} STMT_END
ba869deb GS	230
	231	# define MUTEX_DESTROY(m) \
	232	STMT_START { \
28a80024 MHM	233	int _eC_; \
	234	if ((_eC_ = pthread_mutex_destroy((m)))) \
	235	Perl_croak_nocontext("panic: MUTEX_DESTROY (%d) [%s:%d]", \
	236	_eC_, __FILE__, __LINE__); \
ea0efc06 MB	237	} STMT_END
	238	#endif /* MUTEX_INIT */
	239
	240	#ifndef COND_INIT
ba869deb	241	# define COND_INIT(c) \
ea0efc06	242	STMT_START { \
28a80024 MHM	243	int _eC_; \
	244	if ((_eC_ = pthread_cond_init((c), pthread_condattr_default))) \
	245	Perl_croak_nocontext("panic: COND_INIT (%d) [%s:%d]", \
	246	_eC_, __FILE__, __LINE__); \
ea0efc06	247	} STMT_END
ba869deb GS	248
	249	# define COND_SIGNAL(c) \
	250	STMT_START { \
28a80024 MHM	251	int _eC_; \
	252	if ((_eC_ = pthread_cond_signal((c)))) \
	253	Perl_croak_nocontext("panic: COND_SIGNAL (%d) [%s:%d]", \
	254	_eC_, __FILE__, __LINE__); \
ea0efc06	255	} STMT_END
ba869deb GS	256
	257	# define COND_BROADCAST(c) \
	258	STMT_START { \
28a80024 MHM	259	int _eC_; \
	260	if ((_eC_ = pthread_cond_broadcast((c)))) \
	261	Perl_croak_nocontext("panic: COND_BROADCAST (%d) [%s:%d]", \
	262	_eC_, __FILE__, __LINE__); \
ea0efc06	263	} STMT_END
ba869deb GS	264
	265	# define COND_WAIT(c, m) \
	266	STMT_START { \
28a80024 MHM	267	int _eC_; \
	268	if ((_eC_ = pthread_cond_wait((c), (m)))) \
	269	Perl_croak_nocontext("panic: COND_WAIT (%d) [%s:%d]", \
	270	_eC_, __FILE__, __LINE__); \
ea0efc06	271	} STMT_END
ba869deb GS	272
	273	# define COND_DESTROY(c) \
	274	STMT_START { \
28a80024 MHM	275	int _eC_; \
	276	if ((_eC_ = pthread_cond_destroy((c)))) \
	277	Perl_croak_nocontext("panic: COND_DESTROY (%d) [%s:%d]", \
	278	_eC_, __FILE__, __LINE__); \
ea0efc06 MB	279	} STMT_END
ea0efc06 MB	280	#endif /* COND_INIT */
33f46ff6	281
f826a10b	282	/* DETACH(t) must only be called while holding t->mutex */
ea0efc06	283	#ifndef DETACH
ba869deb GS	284	# define DETACH(t) \
ba869deb GS	285	STMT_START { \
28a80024 MHM	286	int _eC_; \
28a80024 MHM	287	if ((_eC_ = pthread_detach((t)->self))) { \
ba869deb	288	MUTEX_UNLOCK(&(t)->mutex); \
28a80024 MHM	289	Perl_croak_nocontext("panic: DETACH (%d) [%s:%d]", \
28a80024 MHM	290	_eC_, __FILE__, __LINE__); \
ba869deb	291	} \
ea0efc06 MB	292	} STMT_END
ea0efc06 MB	293	#endif /* DETACH */
33f46ff6	294
ea0efc06	295	#ifndef JOIN
ba869deb GS	296	# define JOIN(t, avp) \
ba869deb GS	297	STMT_START { \
28a80024 MHM	298	int _eC_; \
	299	if ((_eC_ = pthread_join((t)->self, (void**)(avp)))) \
	300	Perl_croak_nocontext("panic: pthread_join (%d) [%s:%d]", \
	301	_eC_, __FILE__, __LINE__); \
ea0efc06 MB	302	} STMT_END
	303	#endif /* JOIN */
	304
0953243c JH	305	/* Use an unchecked fetch of thread-specific data instead of a checked one.
	306	* It would fail if the key were bogus, but if the key were bogus then
	307	* Really Bad Things would be happening anyway. --dan */
026b9da6	308	#if (defined(__ALPHA) && (__VMS_VER >= 70000000)) \|\| \
cb23e6a4	309	(defined(__alpha) && defined(__osf__) && !defined(__GNUC__)) /* Available only on >= 4.0 */
8b8b35ab JH	310	# define HAS_PTHREAD_UNCHECKED_GETSPECIFIC_NP /* Configure test needed */
	311	#endif
	312
	313	#ifdef HAS_PTHREAD_UNCHECKED_GETSPECIFIC_NP
	314	# define PTHREAD_GETSPECIFIC(key) pthread_unchecked_getspecific_np(key)
	315	#else
6cfe8af5	316	# define PTHREAD_GETSPECIFIC(key) pthread_getspecific(key)
8b8b35ab JH	317	#endif
	318
	319	#ifndef PERL_GET_CONTEXT
	320	# define PERL_GET_CONTEXT PTHREAD_GETSPECIFIC(PL_thr_key)
ba869deb GS	321	#endif
	322
	323	#ifndef PERL_SET_CONTEXT
	324	# define PERL_SET_CONTEXT(t) \
	325	STMT_START { \
28a80024 MHM	326	int _eC_; \
	327	if ((_eC_ = pthread_setspecific(PL_thr_key, (void *)(t)))) \
	328	Perl_croak_nocontext("panic: pthread_setspecific (%d) [%s:%d]", \
	329	_eC_, __FILE__, __LINE__); \
ea0efc06	330	} STMT_END
ba869deb	331	#endif /* PERL_SET_CONTEXT */
ea0efc06	332
1feb2720 GS	333	#ifndef INIT_THREADS
	334	# ifdef NEED_PTHREAD_INIT
	335	# define INIT_THREADS pthread_init()
	336	# endif
0d85d877	337	#endif
ea0efc06	338
ba869deb GS	339	#ifndef ALLOC_THREAD_KEY
	340	# define ALLOC_THREAD_KEY \
	341	STMT_START { \
23dd8dc9	342	if (pthread_key_create(&PL_thr_key, 0)) { \
ae58ca13	343	write(2, STR_WITH_LEN("panic: pthread_key_create failed\n")); \
c44d3fdb GS	344	exit(1); \
c44d3fdb GS	345	} \
ba869deb GS	346	} STMT_END
	347	#endif
	348
e1b5da64 GS	349	#ifndef FREE_THREAD_KEY
	350	# define FREE_THREAD_KEY \
	351	STMT_START { \
	352	pthread_key_delete(PL_thr_key); \
	353	} STMT_END
	354	#endif
	355
50dd6e57	356	#ifndef PTHREAD_ATFORK
144e72cb RS	357	# ifdef HAS_PTHREAD_ATFORK
144e72cb RS	358	# define PTHREAD_ATFORK(prepare,parent,child) \
de992003	359	pthread_atfork(prepare,parent,child)
144e72cb	360	# else
8ff9412f RS	361	# define PTHREAD_ATFORK(prepare,parent,child) \
8ff9412f RS	362	NOOP
144e72cb	363	# endif
50dd6e57 GS	364	#endif
50dd6e57 GS	365
1feb2720 GS	366	#ifndef THREAD_RET_TYPE
	367	# define THREAD_RET_TYPE void *
	368	# define THREAD_RET_CAST(p) ((void *)(p))
	369	#endif /* THREAD_RET */
	370
e2975953 JH	371	# define LOCK_DOLLARZERO_MUTEX MUTEX_LOCK(&PL_dollarzero_mutex)
	372	# define UNLOCK_DOLLARZERO_MUTEX MUTEX_UNLOCK(&PL_dollarzero_mutex)
	373
3db8f154	374	#endif /* USE_ITHREADS */
1feb2720 GS	375
	376	#ifndef MUTEX_LOCK
	377	# define MUTEX_LOCK(m)
	378	#endif
	379
1feb2720 GS	380	#ifndef MUTEX_UNLOCK
	381	# define MUTEX_UNLOCK(m)
	382	#endif
1feb2720 GS	383
	384	#ifndef MUTEX_INIT
	385	# define MUTEX_INIT(m)
	386	#endif
	387
	388	#ifndef MUTEX_DESTROY
	389	# define MUTEX_DESTROY(m)
	390	#endif
	391
	392	#ifndef COND_INIT
	393	# define COND_INIT(c)
	394	#endif
	395
	396	#ifndef COND_SIGNAL
	397	# define COND_SIGNAL(c)
	398	#endif
	399
	400	#ifndef COND_BROADCAST
	401	# define COND_BROADCAST(c)
	402	#endif
	403
	404	#ifndef COND_WAIT
	405	# define COND_WAIT(c, m)
	406	#endif
	407
	408	#ifndef COND_DESTROY
	409	# define COND_DESTROY(c)
	410	#endif
	411
e2975953 JH	412	#ifndef LOCK_DOLLARZERO_MUTEX
	413	# define LOCK_DOLLARZERO_MUTEX
	414	#endif
	415
	416	#ifndef UNLOCK_DOLLARZERO_MUTEX
	417	# define UNLOCK_DOLLARZERO_MUTEX
	418	#endif
	419
ba869deb	420	/* THR, SET_THR, and dTHR are there for compatibility with old versions */
1feb2720	421	#ifndef THR
ba869deb GS	422	# define THR PERL_GET_THX
	423	#endif
	424
	425	#ifndef SET_THR
	426	# define SET_THR(t) PERL_SET_THX(t)
1feb2720 GS	427	#endif
	428
	429	#ifndef dTHR
	430	# define dTHR dNOOP
	431	#endif
	432
	433	#ifndef INIT_THREADS
	434	# define INIT_THREADS NOOP
	435	#endif
e9a8c099 MHM	436
	437	/*
	438	* Local variables:
	439	* c-indentation-style: bsd
	440	* c-basic-offset: 4
14d04a33	441	* indent-tabs-mode: nil
e9a8c099 MHM	442	* End:
e9a8c099 MHM	443	*
14d04a33	444	* ex: set ts=8 sts=4 sw=4 et:
e9a8c099	445	*/