[perl5.git] / thread.h

/*    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 {						\
	if (pthread_detach(&(t)->self)) {			\
	    MUTEX_UNLOCK(&(t)->mutex);				\
	    Perl_croak_nocontext("panic: DETACH");		\
	}							\
    } 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_mutexattr_settype(a,t) pthread_mutexattr_setkind_np(a,t)
#      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 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");		\
	}							\
    } 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");		\
	}							\
    } 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) = (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 {						\
	Zero((m), 1, perl_mutex);                               \
 	if (pthread_mutex_init((m), pthread_mutexattr_default))	\
	    Perl_croak_nocontext("panic: MUTEX_INIT");		\
    } STMT_END
#  else
#    define MUTEX_INIT(m) \
    STMT_START {						\
	if (pthread_mutex_init((m), pthread_mutexattr_default))	\
	    Perl_croak_nocontext("panic: MUTEX_INIT");		\
    } STMT_END
#  endif

#  define MUTEX_LOCK(m) \
    STMT_START {						\
	if (pthread_mutex_lock((m)))				\
	    Perl_croak_nocontext("panic: MUTEX_LOCK");		\
    } STMT_END

#  define MUTEX_UNLOCK(m) \
    STMT_START {						\
	if (pthread_mutex_unlock((m)))				\
	    Perl_croak_nocontext("panic: MUTEX_UNLOCK");	\
    } STMT_END

#  define MUTEX_DESTROY(m) \
    STMT_START {						\
	if (pthread_mutex_destroy((m)))				\
	    Perl_croak_nocontext("panic: MUTEX_DESTROY");	\
    } STMT_END
#endif /* MUTEX_INIT */

#ifndef COND_INIT
#  define COND_INIT(c) \
    STMT_START {						\
	if (pthread_cond_init((c), pthread_condattr_default))	\
	    Perl_croak_nocontext("panic: COND_INIT");		\
    } STMT_END

#  define COND_SIGNAL(c) \
    STMT_START {						\
	if (pthread_cond_signal((c)))				\
	    Perl_croak_nocontext("panic: COND_SIGNAL");		\
    } STMT_END

#  define COND_BROADCAST(c) \
    STMT_START {						\
	if (pthread_cond_broadcast((c)))			\
	    Perl_croak_nocontext("panic: COND_BROADCAST");	\
    } STMT_END

#  define COND_WAIT(c, m) \
    STMT_START {						\
	if (pthread_cond_wait((c), (m)))			\
	    Perl_croak_nocontext("panic: COND_WAIT");		\
    } STMT_END

#  define COND_DESTROY(c) \
    STMT_START {						\
	if (pthread_cond_destroy((c)))				\
	    Perl_croak_nocontext("panic: COND_DESTROY");	\
    } STMT_END
#endif /* COND_INIT */

/* DETACH(t) must only be called while holding t->mutex */
#ifndef DETACH
#  define DETACH(t) \
    STMT_START {						\
	if (pthread_detach((t)->self)) {			\
	    MUTEX_UNLOCK(&(t)->mutex);				\
	    Perl_croak_nocontext("panic: DETACH");		\
	}							\
    } STMT_END
#endif /* DETACH */

#ifndef JOIN
#  define JOIN(t, avp) \
    STMT_START {						\
	if (pthread_join((t)->self, (void**)(avp)))		\
	    Perl_croak_nocontext("panic: pthread_join");	\
    } 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 {						\
	if (pthread_setspecific(PL_thr_key, (void *)(t)))	\
	    Perl_croak_nocontext("panic: pthread_setspecific");	\
    } 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))	{		\
	    PerlIO_printf(PerlIO_stderr(), "panic: pthread_key_create");	\
	    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_SV_MUTEX
#  define LOCK_SV_MUTEX
#endif

#ifndef UNLOCK_SV_MUTEX
#  define UNLOCK_SV_MUTEX
#endif

#ifndef LOCK_STRTAB_MUTEX
#  define LOCK_STRTAB_MUTEX
#endif

#ifndef UNLOCK_STRTAB_MUTEX
#  define UNLOCK_STRTAB_MUTEX
#endif

#ifndef LOCK_CRED_MUTEX
#  define LOCK_CRED_MUTEX
#endif

#ifndef UNLOCK_CRED_MUTEX
#  define UNLOCK_CRED_MUTEX
#endif

#ifndef LOCK_FDPID_MUTEX
#  define LOCK_FDPID_MUTEX
#endif

#ifndef UNLOCK_FDPID_MUTEX
#  define UNLOCK_FDPID_MUTEX
#endif

#ifndef LOCK_SV_LOCK_MUTEX
#  define LOCK_SV_LOCK_MUTEX
#endif

#ifndef UNLOCK_SV_LOCK_MUTEX
#  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
#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
Commit	Line	Data
d6376244 JH	1	/* thread.h
d6376244 JH	2	*
4bb101f2	3	* Copyright (C) 1999, 2000, 2001, 2002, by Larry Wall and others
d6376244 JH	4	*
	5	* You may distribute under the terms of either the GNU General Public
	6	* License or the Artistic License, as specified in the README file.
	7	*
	8	*/
	9
3db8f154	10	#if defined(USE_ITHREADS)
12ca11f6	11
fd8cd3a3 DS	12	#if defined(VMS)
	13	#include <builtins.h>
	14	#endif
	15
ea0efc06	16	#ifdef WIN32
d55594ae GS	17	# include <win32thread.h>
d55594ae GS	18	#else
2986a63f JH	19	#ifdef NETWARE
	20	# include <nw5thread.h>
	21	#else
0d85d877	22	# ifdef OLD_PTHREADS_API /* Here be dragons. */
ba869deb GS	23	# define DETACH(t) \
	24	STMT_START { \
	25	if (pthread_detach(&(t)->self)) { \
	26	MUTEX_UNLOCK(&(t)->mutex); \
efc57feb	27	Perl_croak_nocontext("panic: DETACH"); \
ba869deb	28	} \
ea0efc06	29	} STMT_END
ba869deb GS	30
	31	# define PERL_GET_CONTEXT Perl_get_context()
	32	# define PERL_SET_CONTEXT(t) Perl_set_context((void*)t)
	33
0d85d877 JH	34	# define PTHREAD_GETSPECIFIC_INT
	35	# ifdef DJGPP
	36	# define pthread_addr_t any_t
	37	# define NEED_PTHREAD_INIT
6dc3770d	38	# define PTHREAD_CREATE_JOINABLE (1)
0d85d877 JH	39	# endif
	40	# ifdef __OPEN_VM
	41	# define pthread_addr_t void *
	42	# endif
20b634c2 JH	43	# ifdef OEMVS
	44	# define pthread_addr_t void *
	45	# define pthread_mutexattr_settype(a,t) pthread_mutexattr_setkind_np(a,t)
	46	# define pthread_create(t,a,s,d) pthread_create(t,&(a),s,d)
	47	# define pthread_keycreate pthread_key_create
	48	# endif
0d85d877 JH	49	# ifdef VMS
	50	# define pthread_attr_init(a) pthread_attr_create(a)
	51	# define PTHREAD_ATTR_SETDETACHSTATE(a,s) pthread_setdetach_np(a,s)
6dc3770d	52	# define PTHREAD_CREATE(t,a,s,d) pthread_create(t,a,s,d)
0d85d877 JH	53	# define pthread_key_create(k,d) pthread_keycreate(k,(pthread_destructor_t)(d))
0d85d877 JH	54	# define pthread_mutexattr_init(a) pthread_mutexattr_create(a)
9bbd4fab	55	# define pthread_mutexattr_settype(a,t) pthread_mutexattr_setkind_np(a,t)
0d85d877	56	# endif
2eb25c99 JH	57	# if defined(__hpux) && defined(__ux_version) && __ux_version <= 1020
	58	# define pthread_attr_init(a) pthread_attr_create(a)
	59	/* XXX pthread_setdetach_np() missing in DCE threads on HP-UX 10.20 */
10617789	60	# define PTHREAD_ATTR_SETDETACHSTATE(a,s) (0)
2eb25c99 JH	61	# define PTHREAD_CREATE(t,a,s,d) pthread_create(t,a,s,d)
	62	# define pthread_key_create(k,d) pthread_keycreate(k,(pthread_destructor_t)(d))
	63	# define pthread_mutexattr_init(a) pthread_mutexattr_create(a)
	64	# define pthread_mutexattr_settype(a,t) pthread_mutexattr_setkind_np(a,t)
	65	# endif
20b634c2	66	# if defined(DJGPP) \|\| defined(__OPEN_VM) \|\| defined(OEMVS)
0d85d877 JH	67	# define PTHREAD_ATTR_SETDETACHSTATE(a,s) pthread_attr_setdetachstate(a,&(s))
	68	# define YIELD pthread_yield(NULL)
	69	# endif
0d85d877	70	# endif
2eb25c99	71	# if !defined(__hpux) \|\| !defined(__ux_version) \|\| __ux_version > 1020
1cfa4ec7	72	# define pthread_mutexattr_default NULL
0d85d877	73	# define pthread_condattr_default NULL
2eb25c99	74	# endif
2986a63f	75	#endif /* NETWARE */
0d85d877 JH	76	#endif
	77
	78	#ifndef PTHREAD_CREATE
	79	/* You are not supposed to pass NULL as the 2nd arg of PTHREAD_CREATE(). */
	80	# define PTHREAD_CREATE(t,a,s,d) pthread_create(t,&(a),s,d)
	81	#endif
	82
	83	#ifndef PTHREAD_ATTR_SETDETACHSTATE
	84	# define PTHREAD_ATTR_SETDETACHSTATE(a,s) pthread_attr_setdetachstate(a,s)
d55594ae	85	#endif
1cfa4ec7	86
ef4af2be JH	87	#ifndef PTHREAD_CREATE_JOINABLE
	88	# ifdef OLD_PTHREAD_CREATE_JOINABLE
	89	# define PTHREAD_CREATE_JOINABLE OLD_PTHREAD_CREATE_JOINABLE
	90	# else
	91	# define PTHREAD_CREATE_JOINABLE 0 /* Panic? No, guess. */
	92	# endif
	93	#endif
	94
5cbe9849	95	#ifdef DGUX
95036ac7	96	# define THREAD_CREATE_NEEDS_STACK (32*1024)
5cbe9849 JH	97	#endif
5cbe9849 JH	98
7f3d1cf1 BH	99	#ifdef I_MACH_CTHREADS
	100
	101	/* cthreads interface */
	102
	103	/* #include <mach/cthreads.h> is in perl.h #ifdef I_MACH_CTHREADS */
	104
ba869deb GS	105	#define MUTEX_INIT(m) \
	106	STMT_START { \
	107	*m = mutex_alloc(); \
	108	if (*m) { \
	109	mutex_init(*m); \
	110	} else { \
efc57feb	111	Perl_croak_nocontext("panic: MUTEX_INIT"); \
ba869deb GS	112	} \
	113	} STMT_END
	114
	115	#define MUTEX_LOCK(m) mutex_lock(*m)
ba869deb	116	#define MUTEX_UNLOCK(m) mutex_unlock(*m)
ba869deb GS	117	#define MUTEX_DESTROY(m) \
	118	STMT_START { \
	119	mutex_free(*m); \
	120	*m = 0; \
	121	} STMT_END
	122
	123	#define COND_INIT(c) \
	124	STMT_START { \
	125	*c = condition_alloc(); \
	126	if (*c) { \
	127	condition_init(*c); \
	128	} \
	129	else { \
efc57feb	130	Perl_croak_nocontext("panic: COND_INIT"); \
ba869deb GS	131	} \
ba869deb GS	132	} STMT_END
7f3d1cf1 BH	133
	134	#define COND_SIGNAL(c) condition_signal(*c)
	135	#define COND_BROADCAST(c) condition_broadcast(*c)
	136	#define COND_WAIT(c, m) condition_wait(c, m)
ba869deb GS	137	#define COND_DESTROY(c) \
	138	STMT_START { \
	139	condition_free(*c); \
	140	*c = 0; \
	141	} STMT_END
7f3d1cf1 BH	142
	143	#define THREAD_CREATE(thr, f) (thr->self = cthread_fork(f, thr), 0)
	144	#define THREAD_POST_CREATE(thr)
	145
	146	#define THREAD_RET_TYPE any_t
	147	#define THREAD_RET_CAST(x) ((any_t) x)
	148
	149	#define DETACH(t) cthread_detach(t->self)
	150	#define JOIN(t, avp) ((avp) = (AV )cthread_join(t->self))
	151
ba869deb GS	152	#define PERL_SET_CONTEXT(t) cthread_set_data(cthread_self(), t)
ba869deb GS	153	#define PERL_GET_CONTEXT cthread_data(cthread_self())
7f3d1cf1 BH	154
	155	#define INIT_THREADS cthread_init()
	156	#define YIELD cthread_yield()
ba869deb	157	#define ALLOC_THREAD_KEY NOOP
e1b5da64	158	#define FREE_THREAD_KEY NOOP
7f3d1cf1 BH	159	#define SET_THREAD_SELF(thr) (thr->self = cthread_self())
	160
	161	#endif /* I_MACH_CTHREADS */
	162
1cfa4ec7	163	#ifndef YIELD
e7a4f449 JH	164	# ifdef SCHED_YIELD
	165	# define YIELD SCHED_YIELD
	166	# else
	167	# ifdef HAS_SCHED_YIELD
	168	# define YIELD sched_yield()
	169	# else
	170	# ifdef HAS_PTHREAD_YIELD
	171	/* pthread_yield(NULL) platforms are expected
	172	* to have #defined YIELD for themselves. */
	173	# define YIELD pthread_yield()
	174	# endif
	175	# endif
	176	# endif
9731c6ca	177	#endif
11343788	178
227c31c3 JH	179	#ifdef __hpux
	180	# define MUTEX_INIT_NEEDS_MUTEX_ZEROED
	181	#endif
	182
ea0efc06	183	#ifndef MUTEX_INIT
ba869deb GS	184
ba869deb GS	185	# ifdef MUTEX_INIT_NEEDS_MUTEX_ZEROED
227c31c3	186	/* Temporary workaround, true bug is deeper. --jhi 1999-02-25 */
ba869deb	187	# define MUTEX_INIT(m) \
227c31c3 JH	188	STMT_START { \
	189	Zero((m), 1, perl_mutex); \
	190	if (pthread_mutex_init((m), pthread_mutexattr_default)) \
efc57feb	191	Perl_croak_nocontext("panic: MUTEX_INIT"); \
227c31c3	192	} STMT_END
ba869deb GS	193	# else
ba869deb GS	194	# define MUTEX_INIT(m) \
ea0efc06 MB	195	STMT_START { \
ea0efc06 MB	196	if (pthread_mutex_init((m), pthread_mutexattr_default)) \
efc57feb	197	Perl_croak_nocontext("panic: MUTEX_INIT"); \
ea0efc06	198	} STMT_END
ba869deb GS	199	# endif
	200
	201	# define MUTEX_LOCK(m) \
	202	STMT_START { \
	203	if (pthread_mutex_lock((m))) \
ba869deb	204	Perl_croak_nocontext("panic: MUTEX_LOCK"); \
cea2e8a9	205	} STMT_END
ba869deb	206
efc57feb	207	# define MUTEX_UNLOCK(m) \
ba869deb GS	208	STMT_START { \
	209	if (pthread_mutex_unlock((m))) \
	210	Perl_croak_nocontext("panic: MUTEX_UNLOCK"); \
ea0efc06	211	} STMT_END
ba869deb GS	212
	213	# define MUTEX_DESTROY(m) \
	214	STMT_START { \
	215	if (pthread_mutex_destroy((m))) \
efc57feb	216	Perl_croak_nocontext("panic: MUTEX_DESTROY"); \
ea0efc06 MB	217	} STMT_END
	218	#endif /* MUTEX_INIT */
	219
	220	#ifndef COND_INIT
ba869deb	221	# define COND_INIT(c) \
ea0efc06 MB	222	STMT_START { \
ea0efc06 MB	223	if (pthread_cond_init((c), pthread_condattr_default)) \
efc57feb	224	Perl_croak_nocontext("panic: COND_INIT"); \
ea0efc06	225	} STMT_END
ba869deb GS	226
	227	# define COND_SIGNAL(c) \
	228	STMT_START { \
	229	if (pthread_cond_signal((c))) \
efc57feb	230	Perl_croak_nocontext("panic: COND_SIGNAL"); \
ea0efc06	231	} STMT_END
ba869deb GS	232
	233	# define COND_BROADCAST(c) \
	234	STMT_START { \
	235	if (pthread_cond_broadcast((c))) \
efc57feb	236	Perl_croak_nocontext("panic: COND_BROADCAST"); \
ea0efc06	237	} STMT_END
ba869deb GS	238
	239	# define COND_WAIT(c, m) \
	240	STMT_START { \
	241	if (pthread_cond_wait((c), (m))) \
efc57feb	242	Perl_croak_nocontext("panic: COND_WAIT"); \
ea0efc06	243	} STMT_END
ba869deb GS	244
	245	# define COND_DESTROY(c) \
	246	STMT_START { \
	247	if (pthread_cond_destroy((c))) \
efc57feb	248	Perl_croak_nocontext("panic: COND_DESTROY"); \
ea0efc06 MB	249	} STMT_END
ea0efc06 MB	250	#endif /* COND_INIT */
33f46ff6	251
f826a10b	252	/* DETACH(t) must only be called while holding t->mutex */
ea0efc06	253	#ifndef DETACH
ba869deb GS	254	# define DETACH(t) \
	255	STMT_START { \
	256	if (pthread_detach((t)->self)) { \
	257	MUTEX_UNLOCK(&(t)->mutex); \
efc57feb	258	Perl_croak_nocontext("panic: DETACH"); \
ba869deb	259	} \
ea0efc06 MB	260	} STMT_END
ea0efc06 MB	261	#endif /* DETACH */
33f46ff6	262
ea0efc06	263	#ifndef JOIN
ba869deb GS	264	# define JOIN(t, avp) \
	265	STMT_START { \
	266	if (pthread_join((t)->self, (void**)(avp))) \
efc57feb	267	Perl_croak_nocontext("panic: pthread_join"); \
ea0efc06 MB	268	} STMT_END
	269	#endif /* JOIN */
	270
0953243c JH	271	/* Use an unchecked fetch of thread-specific data instead of a checked one.
	272	* It would fail if the key were bogus, but if the key were bogus then
	273	* Really Bad Things would be happening anyway. --dan */
026b9da6	274	#if (defined(__ALPHA) && (__VMS_VER >= 70000000)) \|\| \
cb23e6a4	275	(defined(__alpha) && defined(__osf__) && !defined(__GNUC__)) /* Available only on >= 4.0 */
8b8b35ab JH	276	# define HAS_PTHREAD_UNCHECKED_GETSPECIFIC_NP /* Configure test needed */
	277	#endif
	278
	279	#ifdef HAS_PTHREAD_UNCHECKED_GETSPECIFIC_NP
	280	# define PTHREAD_GETSPECIFIC(key) pthread_unchecked_getspecific_np(key)
	281	#else
6cfe8af5	282	# define PTHREAD_GETSPECIFIC(key) pthread_getspecific(key)
8b8b35ab JH	283	#endif
	284
	285	#ifndef PERL_GET_CONTEXT
	286	# define PERL_GET_CONTEXT PTHREAD_GETSPECIFIC(PL_thr_key)
ba869deb GS	287	#endif
	288
	289	#ifndef PERL_SET_CONTEXT
	290	# define PERL_SET_CONTEXT(t) \
	291	STMT_START { \
	292	if (pthread_setspecific(PL_thr_key, (void *)(t))) \
efc57feb	293	Perl_croak_nocontext("panic: pthread_setspecific"); \
ea0efc06	294	} STMT_END
ba869deb	295	#endif /* PERL_SET_CONTEXT */
ea0efc06	296
1feb2720 GS	297	#ifndef INIT_THREADS
	298	# ifdef NEED_PTHREAD_INIT
	299	# define INIT_THREADS pthread_init()
	300	# endif
0d85d877	301	#endif
ea0efc06	302
ba869deb GS	303	#ifndef ALLOC_THREAD_KEY
	304	# define ALLOC_THREAD_KEY \
	305	STMT_START { \
c44d3fdb	306	if (pthread_key_create(&PL_thr_key, 0)) { \
7bd161a1	307	PerlIO_printf(PerlIO_stderr(), "panic: pthread_key_create"); \
c44d3fdb GS	308	exit(1); \
c44d3fdb GS	309	} \
ba869deb GS	310	} STMT_END
	311	#endif
	312
e1b5da64 GS	313	#ifndef FREE_THREAD_KEY
	314	# define FREE_THREAD_KEY \
	315	STMT_START { \
	316	pthread_key_delete(PL_thr_key); \
	317	} STMT_END
	318	#endif
	319
50dd6e57	320	#ifndef PTHREAD_ATFORK
144e72cb RS	321	# ifdef HAS_PTHREAD_ATFORK
144e72cb RS	322	# define PTHREAD_ATFORK(prepare,parent,child) \
de992003	323	pthread_atfork(prepare,parent,child)
144e72cb	324	# else
8ff9412f RS	325	# define PTHREAD_ATFORK(prepare,parent,child) \
8ff9412f RS	326	NOOP
144e72cb	327	# endif
50dd6e57 GS	328	#endif
50dd6e57 GS	329
1feb2720 GS	330	#ifndef THREAD_RET_TYPE
	331	# define THREAD_RET_TYPE void *
	332	# define THREAD_RET_CAST(p) ((void *)(p))
	333	#endif /* THREAD_RET */
	334
e2975953 JH	335	# define LOCK_DOLLARZERO_MUTEX MUTEX_LOCK(&PL_dollarzero_mutex)
	336	# define UNLOCK_DOLLARZERO_MUTEX MUTEX_UNLOCK(&PL_dollarzero_mutex)
	337
3db8f154	338	#endif /* USE_ITHREADS */
1feb2720 GS	339
	340	#ifndef MUTEX_LOCK
	341	# define MUTEX_LOCK(m)
	342	#endif
	343
1feb2720 GS	344	#ifndef MUTEX_UNLOCK
	345	# define MUTEX_UNLOCK(m)
	346	#endif
1feb2720 GS	347
	348	#ifndef MUTEX_INIT
	349	# define MUTEX_INIT(m)
	350	#endif
	351
	352	#ifndef MUTEX_DESTROY
	353	# define MUTEX_DESTROY(m)
	354	#endif
	355
	356	#ifndef COND_INIT
	357	# define COND_INIT(c)
	358	#endif
	359
	360	#ifndef COND_SIGNAL
	361	# define COND_SIGNAL(c)
	362	#endif
	363
	364	#ifndef COND_BROADCAST
	365	# define COND_BROADCAST(c)
	366	#endif
	367
	368	#ifndef COND_WAIT
	369	# define COND_WAIT(c, m)
	370	#endif
	371
	372	#ifndef COND_DESTROY
	373	# define COND_DESTROY(c)
	374	#endif
	375
	376	#ifndef LOCK_SV_MUTEX
	377	# define LOCK_SV_MUTEX
	378	#endif
	379
	380	#ifndef UNLOCK_SV_MUTEX
	381	# define UNLOCK_SV_MUTEX
	382	#endif
	383
	384	#ifndef LOCK_STRTAB_MUTEX
	385	# define LOCK_STRTAB_MUTEX
	386	#endif
	387
	388	#ifndef UNLOCK_STRTAB_MUTEX
	389	# define UNLOCK_STRTAB_MUTEX
	390	#endif
	391
	392	#ifndef LOCK_CRED_MUTEX
	393	# define LOCK_CRED_MUTEX
	394	#endif
	395
	396	#ifndef UNLOCK_CRED_MUTEX
	397	# define UNLOCK_CRED_MUTEX
	398	#endif
	399
4755096e GS	400	#ifndef LOCK_FDPID_MUTEX
	401	# define LOCK_FDPID_MUTEX
	402	#endif
	403
	404	#ifndef UNLOCK_FDPID_MUTEX
	405	# define UNLOCK_FDPID_MUTEX
	406	#endif
	407
631cfb58 GS	408	#ifndef LOCK_SV_LOCK_MUTEX
	409	# define LOCK_SV_LOCK_MUTEX
	410	#endif
	411
	412	#ifndef UNLOCK_SV_LOCK_MUTEX
	413	# define UNLOCK_SV_LOCK_MUTEX
	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