[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 __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)
#      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(__OPEN_VM) || 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: t
 * End:
 *
 * ex: set ts=8 sts=4 sw=4 noet:
 */
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 JH	42	# endif
	43	# ifdef __OPEN_VM
	44	# define pthread_addr_t void *
	45	# endif
20b634c2 JH	46	# ifdef OEMVS
20b634c2 JH	47	# define pthread_addr_t void *
20b634c2 JH	48	# define pthread_create(t,a,s,d) pthread_create(t,&(a),s,d)
	49	# define pthread_keycreate pthread_key_create
	50	# endif
0d85d877 JH	51	# ifdef VMS
	52	# define pthread_attr_init(a) pthread_attr_create(a)
	53	# define PTHREAD_ATTR_SETDETACHSTATE(a,s) pthread_setdetach_np(a,s)
6dc3770d	54	# define PTHREAD_CREATE(t,a,s,d) pthread_create(t,a,s,d)
0d85d877 JH	55	# define pthread_key_create(k,d) pthread_keycreate(k,(pthread_destructor_t)(d))
0d85d877 JH	56	# define pthread_mutexattr_init(a) pthread_mutexattr_create(a)
9bbd4fab	57	# define pthread_mutexattr_settype(a,t) pthread_mutexattr_setkind_np(a,t)
0d85d877	58	# endif
2eb25c99 JH	59	# if defined(__hpux) && defined(__ux_version) && __ux_version <= 1020
	60	# define pthread_attr_init(a) pthread_attr_create(a)
	61	/* XXX pthread_setdetach_np() missing in DCE threads on HP-UX 10.20 */
10617789	62	# define PTHREAD_ATTR_SETDETACHSTATE(a,s) (0)
2eb25c99 JH	63	# define PTHREAD_CREATE(t,a,s,d) pthread_create(t,a,s,d)
	64	# define pthread_key_create(k,d) pthread_keycreate(k,(pthread_destructor_t)(d))
	65	# define pthread_mutexattr_init(a) pthread_mutexattr_create(a)
	66	# define pthread_mutexattr_settype(a,t) pthread_mutexattr_setkind_np(a,t)
	67	# endif
20b634c2	68	# if defined(DJGPP) \|\| defined(__OPEN_VM) \|\| defined(OEMVS)
0d85d877 JH	69	# define PTHREAD_ATTR_SETDETACHSTATE(a,s) pthread_attr_setdetachstate(a,&(s))
	70	# define YIELD pthread_yield(NULL)
	71	# endif
0d85d877	72	# endif
2eb25c99	73	# if !defined(__hpux) \|\| !defined(__ux_version) \|\| __ux_version > 1020
1cfa4ec7	74	# define pthread_mutexattr_default NULL
0d85d877	75	# define pthread_condattr_default NULL
2eb25c99	76	# endif
2986a63f	77	#endif /* NETWARE */
0d85d877 JH	78	#endif
	79
	80	#ifndef PTHREAD_CREATE
	81	/* You are not supposed to pass NULL as the 2nd arg of PTHREAD_CREATE(). */
	82	# define PTHREAD_CREATE(t,a,s,d) pthread_create(t,&(a),s,d)
	83	#endif
	84
	85	#ifndef PTHREAD_ATTR_SETDETACHSTATE
	86	# define PTHREAD_ATTR_SETDETACHSTATE(a,s) pthread_attr_setdetachstate(a,s)
d55594ae	87	#endif
1cfa4ec7	88
ef4af2be JH	89	#ifndef PTHREAD_CREATE_JOINABLE
	90	# ifdef OLD_PTHREAD_CREATE_JOINABLE
	91	# define PTHREAD_CREATE_JOINABLE OLD_PTHREAD_CREATE_JOINABLE
	92	# else
	93	# define PTHREAD_CREATE_JOINABLE 0 /* Panic? No, guess. */
	94	# endif
	95	#endif
	96
5cbe9849	97	#ifdef DGUX
95036ac7	98	# define THREAD_CREATE_NEEDS_STACK (32*1024)
5cbe9849 JH	99	#endif
5cbe9849 JH	100
93a09687 JM	101	#ifdef __VMS
93a09687 JM	102	/* Default is 1024 on VAX, 8192 otherwise */
3319632a CB	103	# ifdef __ia64
	104	# define THREAD_CREATE_NEEDS_STACK (48*1024)
	105	# else
	106	# define THREAD_CREATE_NEEDS_STACK (32*1024)
	107	# endif
93a09687 JM	108	#endif
93a09687 JM	109
7f3d1cf1 BH	110	#ifdef I_MACH_CTHREADS
	111
	112	/* cthreads interface */
	113
	114	/* #include <mach/cthreads.h> is in perl.h #ifdef I_MACH_CTHREADS */
	115
ba869deb GS	116	#define MUTEX_INIT(m) \
	117	STMT_START { \
	118	*m = mutex_alloc(); \
	119	if (*m) { \
	120	mutex_init(*m); \
	121	} else { \
28a80024 MHM	122	Perl_croak_nocontext("panic: MUTEX_INIT [%s:%d]", \
28a80024 MHM	123	__FILE__, __LINE__); \
ba869deb GS	124	} \
	125	} STMT_END
	126
	127	#define MUTEX_LOCK(m) mutex_lock(*m)
ba869deb	128	#define MUTEX_UNLOCK(m) mutex_unlock(*m)
ba869deb GS	129	#define MUTEX_DESTROY(m) \
	130	STMT_START { \
	131	mutex_free(*m); \
	132	*m = 0; \
	133	} STMT_END
	134
	135	#define COND_INIT(c) \
	136	STMT_START { \
	137	*c = condition_alloc(); \
	138	if (*c) { \
	139	condition_init(*c); \
	140	} \
	141	else { \
28a80024 MHM	142	Perl_croak_nocontext("panic: COND_INIT [%s:%d]", \
28a80024 MHM	143	__FILE__, __LINE__); \
ba869deb GS	144	} \
ba869deb GS	145	} STMT_END
7f3d1cf1 BH	146
	147	#define COND_SIGNAL(c) condition_signal(*c)
	148	#define COND_BROADCAST(c) condition_broadcast(*c)
	149	#define COND_WAIT(c, m) condition_wait(c, m)
ba869deb GS	150	#define COND_DESTROY(c) \
	151	STMT_START { \
	152	condition_free(*c); \
	153	*c = 0; \
	154	} STMT_END
7f3d1cf1 BH	155
	156	#define THREAD_CREATE(thr, f) (thr->self = cthread_fork(f, thr), 0)
	157	#define THREAD_POST_CREATE(thr)
	158
	159	#define THREAD_RET_TYPE any_t
	160	#define THREAD_RET_CAST(x) ((any_t) x)
	161
	162	#define DETACH(t) cthread_detach(t->self)
a062e10d	163	#define JOIN(t, avp) (*(avp) = MUTABLE_AV(cthread_join(t->self)))
7f3d1cf1	164
ba869deb GS	165	#define PERL_SET_CONTEXT(t) cthread_set_data(cthread_self(), t)
ba869deb GS	166	#define PERL_GET_CONTEXT cthread_data(cthread_self())
7f3d1cf1 BH	167
	168	#define INIT_THREADS cthread_init()
	169	#define YIELD cthread_yield()
ba869deb	170	#define ALLOC_THREAD_KEY NOOP
e1b5da64	171	#define FREE_THREAD_KEY NOOP
7f3d1cf1 BH	172	#define SET_THREAD_SELF(thr) (thr->self = cthread_self())
	173
	174	#endif /* I_MACH_CTHREADS */
	175
1cfa4ec7	176	#ifndef YIELD
e7a4f449 JH	177	# ifdef SCHED_YIELD
	178	# define YIELD SCHED_YIELD
	179	# else
	180	# ifdef HAS_SCHED_YIELD
	181	# define YIELD sched_yield()
	182	# else
	183	# ifdef HAS_PTHREAD_YIELD
	184	/* pthread_yield(NULL) platforms are expected
	185	* to have #defined YIELD for themselves. */
	186	# define YIELD pthread_yield()
	187	# endif
	188	# endif
	189	# endif
9731c6ca	190	#endif
11343788	191
227c31c3 JH	192	#ifdef __hpux
	193	# define MUTEX_INIT_NEEDS_MUTEX_ZEROED
	194	#endif
	195
ea0efc06	196	#ifndef MUTEX_INIT
ba869deb GS	197
ba869deb GS	198	# ifdef MUTEX_INIT_NEEDS_MUTEX_ZEROED
227c31c3	199	/* Temporary workaround, true bug is deeper. --jhi 1999-02-25 */
ba869deb	200	# define MUTEX_INIT(m) \
227c31c3	201	STMT_START { \
28a80024	202	int _eC_; \
227c31c3	203	Zero((m), 1, perl_mutex); \
28a80024 MHM	204	if ((_eC_ = pthread_mutex_init((m), pthread_mutexattr_default))) \
	205	Perl_croak_nocontext("panic: MUTEX_INIT (%d) [%s:%d]", \
	206	_eC_, __FILE__, __LINE__); \
227c31c3	207	} STMT_END
ba869deb GS	208	# else
ba869deb GS	209	# define MUTEX_INIT(m) \
ea0efc06	210	STMT_START { \
28a80024 MHM	211	int _eC_; \
	212	if ((_eC_ = pthread_mutex_init((m), pthread_mutexattr_default))) \
	213	Perl_croak_nocontext("panic: MUTEX_INIT (%d) [%s:%d]", \
	214	_eC_, __FILE__, __LINE__); \
ea0efc06	215	} STMT_END
ba869deb GS	216	# endif
	217
	218	# define MUTEX_LOCK(m) \
	219	STMT_START { \
28a80024 MHM	220	int _eC_; \
	221	if ((_eC_ = pthread_mutex_lock((m)))) \
	222	Perl_croak_nocontext("panic: MUTEX_LOCK (%d) [%s:%d]", \
	223	_eC_, __FILE__, __LINE__); \
cea2e8a9	224	} STMT_END
ba869deb	225
efc57feb	226	# define MUTEX_UNLOCK(m) \
ba869deb	227	STMT_START { \
28a80024 MHM	228	int _eC_; \
	229	if ((_eC_ = pthread_mutex_unlock((m)))) \
	230	Perl_croak_nocontext("panic: MUTEX_UNLOCK (%d) [%s:%d]", \
	231	_eC_, __FILE__, __LINE__); \
ea0efc06	232	} STMT_END
ba869deb GS	233
	234	# define MUTEX_DESTROY(m) \
	235	STMT_START { \
28a80024 MHM	236	int _eC_; \
	237	if ((_eC_ = pthread_mutex_destroy((m)))) \
	238	Perl_croak_nocontext("panic: MUTEX_DESTROY (%d) [%s:%d]", \
	239	_eC_, __FILE__, __LINE__); \
ea0efc06 MB	240	} STMT_END
	241	#endif /* MUTEX_INIT */
	242
	243	#ifndef COND_INIT
ba869deb	244	# define COND_INIT(c) \
ea0efc06	245	STMT_START { \
28a80024 MHM	246	int _eC_; \
	247	if ((_eC_ = pthread_cond_init((c), pthread_condattr_default))) \
	248	Perl_croak_nocontext("panic: COND_INIT (%d) [%s:%d]", \
	249	_eC_, __FILE__, __LINE__); \
ea0efc06	250	} STMT_END
ba869deb GS	251
	252	# define COND_SIGNAL(c) \
	253	STMT_START { \
28a80024 MHM	254	int _eC_; \
	255	if ((_eC_ = pthread_cond_signal((c)))) \
	256	Perl_croak_nocontext("panic: COND_SIGNAL (%d) [%s:%d]", \
	257	_eC_, __FILE__, __LINE__); \
ea0efc06	258	} STMT_END
ba869deb GS	259
	260	# define COND_BROADCAST(c) \
	261	STMT_START { \
28a80024 MHM	262	int _eC_; \
	263	if ((_eC_ = pthread_cond_broadcast((c)))) \
	264	Perl_croak_nocontext("panic: COND_BROADCAST (%d) [%s:%d]", \
	265	_eC_, __FILE__, __LINE__); \
ea0efc06	266	} STMT_END
ba869deb GS	267
	268	# define COND_WAIT(c, m) \
	269	STMT_START { \
28a80024 MHM	270	int _eC_; \
	271	if ((_eC_ = pthread_cond_wait((c), (m)))) \
	272	Perl_croak_nocontext("panic: COND_WAIT (%d) [%s:%d]", \
	273	_eC_, __FILE__, __LINE__); \
ea0efc06	274	} STMT_END
ba869deb GS	275
	276	# define COND_DESTROY(c) \
	277	STMT_START { \
28a80024 MHM	278	int _eC_; \
	279	if ((_eC_ = pthread_cond_destroy((c)))) \
	280	Perl_croak_nocontext("panic: COND_DESTROY (%d) [%s:%d]", \
	281	_eC_, __FILE__, __LINE__); \
ea0efc06 MB	282	} STMT_END
ea0efc06 MB	283	#endif /* COND_INIT */
33f46ff6	284
f826a10b	285	/* DETACH(t) must only be called while holding t->mutex */
ea0efc06	286	#ifndef DETACH
ba869deb GS	287	# define DETACH(t) \
ba869deb GS	288	STMT_START { \
28a80024 MHM	289	int _eC_; \
28a80024 MHM	290	if ((_eC_ = pthread_detach((t)->self))) { \
ba869deb	291	MUTEX_UNLOCK(&(t)->mutex); \
28a80024 MHM	292	Perl_croak_nocontext("panic: DETACH (%d) [%s:%d]", \
28a80024 MHM	293	_eC_, __FILE__, __LINE__); \
ba869deb	294	} \
ea0efc06 MB	295	} STMT_END
ea0efc06 MB	296	#endif /* DETACH */
33f46ff6	297
ea0efc06	298	#ifndef JOIN
ba869deb GS	299	# define JOIN(t, avp) \
ba869deb GS	300	STMT_START { \
28a80024 MHM	301	int _eC_; \
	302	if ((_eC_ = pthread_join((t)->self, (void**)(avp)))) \
	303	Perl_croak_nocontext("panic: pthread_join (%d) [%s:%d]", \
	304	_eC_, __FILE__, __LINE__); \
ea0efc06 MB	305	} STMT_END
	306	#endif /* JOIN */
	307
0953243c JH	308	/* Use an unchecked fetch of thread-specific data instead of a checked one.
	309	* It would fail if the key were bogus, but if the key were bogus then
	310	* Really Bad Things would be happening anyway. --dan */
026b9da6	311	#if (defined(__ALPHA) && (__VMS_VER >= 70000000)) \|\| \
cb23e6a4	312	(defined(__alpha) && defined(__osf__) && !defined(__GNUC__)) /* Available only on >= 4.0 */
8b8b35ab JH	313	# define HAS_PTHREAD_UNCHECKED_GETSPECIFIC_NP /* Configure test needed */
	314	#endif
	315
	316	#ifdef HAS_PTHREAD_UNCHECKED_GETSPECIFIC_NP
	317	# define PTHREAD_GETSPECIFIC(key) pthread_unchecked_getspecific_np(key)
	318	#else
6cfe8af5	319	# define PTHREAD_GETSPECIFIC(key) pthread_getspecific(key)
8b8b35ab JH	320	#endif
	321
	322	#ifndef PERL_GET_CONTEXT
	323	# define PERL_GET_CONTEXT PTHREAD_GETSPECIFIC(PL_thr_key)
ba869deb GS	324	#endif
	325
	326	#ifndef PERL_SET_CONTEXT
	327	# define PERL_SET_CONTEXT(t) \
	328	STMT_START { \
28a80024 MHM	329	int _eC_; \
	330	if ((_eC_ = pthread_setspecific(PL_thr_key, (void *)(t)))) \
	331	Perl_croak_nocontext("panic: pthread_setspecific (%d) [%s:%d]", \
	332	_eC_, __FILE__, __LINE__); \
ea0efc06	333	} STMT_END
ba869deb	334	#endif /* PERL_SET_CONTEXT */
ea0efc06	335
1feb2720 GS	336	#ifndef INIT_THREADS
	337	# ifdef NEED_PTHREAD_INIT
	338	# define INIT_THREADS pthread_init()
	339	# endif
0d85d877	340	#endif
ea0efc06	341
ba869deb GS	342	#ifndef ALLOC_THREAD_KEY
	343	# define ALLOC_THREAD_KEY \
	344	STMT_START { \
23dd8dc9	345	if (pthread_key_create(&PL_thr_key, 0)) { \
ae58ca13	346	write(2, STR_WITH_LEN("panic: pthread_key_create failed\n")); \
c44d3fdb GS	347	exit(1); \
c44d3fdb GS	348	} \
ba869deb GS	349	} STMT_END
	350	#endif
	351
e1b5da64 GS	352	#ifndef FREE_THREAD_KEY
	353	# define FREE_THREAD_KEY \
	354	STMT_START { \
	355	pthread_key_delete(PL_thr_key); \
	356	} STMT_END
	357	#endif
	358
50dd6e57	359	#ifndef PTHREAD_ATFORK
144e72cb RS	360	# ifdef HAS_PTHREAD_ATFORK
144e72cb RS	361	# define PTHREAD_ATFORK(prepare,parent,child) \
de992003	362	pthread_atfork(prepare,parent,child)
144e72cb	363	# else
8ff9412f RS	364	# define PTHREAD_ATFORK(prepare,parent,child) \
8ff9412f RS	365	NOOP
144e72cb	366	# endif
50dd6e57 GS	367	#endif
50dd6e57 GS	368
1feb2720 GS	369	#ifndef THREAD_RET_TYPE
	370	# define THREAD_RET_TYPE void *
	371	# define THREAD_RET_CAST(p) ((void *)(p))
	372	#endif /* THREAD_RET */
	373
e2975953 JH	374	# define LOCK_DOLLARZERO_MUTEX MUTEX_LOCK(&PL_dollarzero_mutex)
	375	# define UNLOCK_DOLLARZERO_MUTEX MUTEX_UNLOCK(&PL_dollarzero_mutex)
	376
3db8f154	377	#endif /* USE_ITHREADS */
1feb2720 GS	378
	379	#ifndef MUTEX_LOCK
	380	# define MUTEX_LOCK(m)
	381	#endif
	382
1feb2720 GS	383	#ifndef MUTEX_UNLOCK
	384	# define MUTEX_UNLOCK(m)
	385	#endif
1feb2720 GS	386
	387	#ifndef MUTEX_INIT
	388	# define MUTEX_INIT(m)
	389	#endif
	390
	391	#ifndef MUTEX_DESTROY
	392	# define MUTEX_DESTROY(m)
	393	#endif
	394
	395	#ifndef COND_INIT
	396	# define COND_INIT(c)
	397	#endif
	398
	399	#ifndef COND_SIGNAL
	400	# define COND_SIGNAL(c)
	401	#endif
	402
	403	#ifndef COND_BROADCAST
	404	# define COND_BROADCAST(c)
	405	#endif
	406
	407	#ifndef COND_WAIT
	408	# define COND_WAIT(c, m)
	409	#endif
	410
	411	#ifndef COND_DESTROY
	412	# define COND_DESTROY(c)
	413	#endif
	414
e2975953 JH	415	#ifndef LOCK_DOLLARZERO_MUTEX
	416	# define LOCK_DOLLARZERO_MUTEX
	417	#endif
	418
	419	#ifndef UNLOCK_DOLLARZERO_MUTEX
	420	# define UNLOCK_DOLLARZERO_MUTEX
	421	#endif
	422
ba869deb	423	/* THR, SET_THR, and dTHR are there for compatibility with old versions */
1feb2720	424	#ifndef THR
ba869deb GS	425	# define THR PERL_GET_THX
	426	#endif
	427
	428	#ifndef SET_THR
	429	# define SET_THR(t) PERL_SET_THX(t)
1feb2720 GS	430	#endif
	431
	432	#ifndef dTHR
	433	# define dTHR dNOOP
	434	#endif
	435
	436	#ifndef INIT_THREADS
	437	# define INIT_THREADS NOOP
	438	#endif
e9a8c099 MHM	439
	440	/*
	441	* Local variables:
	442	* c-indentation-style: bsd
	443	* c-basic-offset: 4
	444	* indent-tabs-mode: t
	445	* End:
	446	*
	447	* ex: set ts=8 sts=4 sw=4 noet:
	448	*/