[perl5.git] / thread.h

/*    thread.h
 *
 *    Copyright (C) 1999, 2000, 2001, 2002, 2004, 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 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) = (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 {						\
	int _eC_;						\
	if ((_eC_ = pthread_key_create(&PL_thr_key, 0))) {	\
	    PerlIO_printf(PerlIO_stderr(), "panic: pthread_key_create (%d) [%s:%d]",	\
				 _eC_, __FILE__, __LINE__);	\
	    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	*
b5f8cc5c	3	* Copyright (C) 1999, 2000, 2001, 2002, 2004, 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) \
ba869deb GS	24	STMT_START { \
28a80024 MHM	25	int _eC_; \
28a80024 MHM	26	if ((_eC_ = pthread_detach(&(t)->self))) { \
ba869deb	27	MUTEX_UNLOCK(&(t)->mutex); \
28a80024 MHM	28	Perl_croak_nocontext("panic: DETACH (%d) [%s:%d]", \
28a80024 MHM	29	_eC_, __FILE__, __LINE__); \
ba869deb	30	} \
ea0efc06	31	} STMT_END
ba869deb GS	32
	33	# define PERL_GET_CONTEXT Perl_get_context()
	34	# define PERL_SET_CONTEXT(t) Perl_set_context((void*)t)
	35
0d85d877 JH	36	# define PTHREAD_GETSPECIFIC_INT
	37	# ifdef DJGPP
	38	# define pthread_addr_t any_t
	39	# define NEED_PTHREAD_INIT
6dc3770d	40	# define PTHREAD_CREATE_JOINABLE (1)
0d85d877 JH	41	# endif
	42	# ifdef __OPEN_VM
	43	# define pthread_addr_t void *
	44	# endif
20b634c2 JH	45	# ifdef OEMVS
20b634c2 JH	46	# define pthread_addr_t void *
20b634c2 JH	47	# define pthread_create(t,a,s,d) pthread_create(t,&(a),s,d)
	48	# define pthread_keycreate pthread_key_create
	49	# endif
0d85d877 JH	50	# ifdef VMS
	51	# define pthread_attr_init(a) pthread_attr_create(a)
	52	# define PTHREAD_ATTR_SETDETACHSTATE(a,s) pthread_setdetach_np(a,s)
6dc3770d	53	# define PTHREAD_CREATE(t,a,s,d) pthread_create(t,a,s,d)
0d85d877 JH	54	# define pthread_key_create(k,d) pthread_keycreate(k,(pthread_destructor_t)(d))
0d85d877 JH	55	# define pthread_mutexattr_init(a) pthread_mutexattr_create(a)
9bbd4fab	56	# define pthread_mutexattr_settype(a,t) pthread_mutexattr_setkind_np(a,t)
0d85d877	57	# endif
2eb25c99 JH	58	# if defined(__hpux) && defined(__ux_version) && __ux_version <= 1020
	59	# define pthread_attr_init(a) pthread_attr_create(a)
	60	/* XXX pthread_setdetach_np() missing in DCE threads on HP-UX 10.20 */
10617789	61	# define PTHREAD_ATTR_SETDETACHSTATE(a,s) (0)
2eb25c99 JH	62	# define PTHREAD_CREATE(t,a,s,d) pthread_create(t,a,s,d)
	63	# define pthread_key_create(k,d) pthread_keycreate(k,(pthread_destructor_t)(d))
	64	# define pthread_mutexattr_init(a) pthread_mutexattr_create(a)
	65	# define pthread_mutexattr_settype(a,t) pthread_mutexattr_setkind_np(a,t)
	66	# endif
20b634c2	67	# if defined(DJGPP) \|\| defined(__OPEN_VM) \|\| defined(OEMVS)
0d85d877 JH	68	# define PTHREAD_ATTR_SETDETACHSTATE(a,s) pthread_attr_setdetachstate(a,&(s))
	69	# define YIELD pthread_yield(NULL)
	70	# endif
0d85d877	71	# endif
2eb25c99	72	# if !defined(__hpux) \|\| !defined(__ux_version) \|\| __ux_version > 1020
1cfa4ec7	73	# define pthread_mutexattr_default NULL
0d85d877	74	# define pthread_condattr_default NULL
2eb25c99	75	# endif
2986a63f	76	#endif /* NETWARE */
0d85d877 JH	77	#endif
	78
	79	#ifndef PTHREAD_CREATE
	80	/* You are not supposed to pass NULL as the 2nd arg of PTHREAD_CREATE(). */
	81	# define PTHREAD_CREATE(t,a,s,d) pthread_create(t,&(a),s,d)
	82	#endif
	83
	84	#ifndef PTHREAD_ATTR_SETDETACHSTATE
	85	# define PTHREAD_ATTR_SETDETACHSTATE(a,s) pthread_attr_setdetachstate(a,s)
d55594ae	86	#endif
1cfa4ec7	87
ef4af2be JH	88	#ifndef PTHREAD_CREATE_JOINABLE
	89	# ifdef OLD_PTHREAD_CREATE_JOINABLE
	90	# define PTHREAD_CREATE_JOINABLE OLD_PTHREAD_CREATE_JOINABLE
	91	# else
	92	# define PTHREAD_CREATE_JOINABLE 0 /* Panic? No, guess. */
	93	# endif
	94	#endif
	95
5cbe9849	96	#ifdef DGUX
95036ac7	97	# define THREAD_CREATE_NEEDS_STACK (32*1024)
5cbe9849 JH	98	#endif
5cbe9849 JH	99
7f3d1cf1 BH	100	#ifdef I_MACH_CTHREADS
	101
	102	/* cthreads interface */
	103
	104	/* #include <mach/cthreads.h> is in perl.h #ifdef I_MACH_CTHREADS */
	105
ba869deb GS	106	#define MUTEX_INIT(m) \
	107	STMT_START { \
	108	*m = mutex_alloc(); \
	109	if (*m) { \
	110	mutex_init(*m); \
	111	} else { \
28a80024 MHM	112	Perl_croak_nocontext("panic: MUTEX_INIT [%s:%d]", \
28a80024 MHM	113	__FILE__, __LINE__); \
ba869deb GS	114	} \
	115	} STMT_END
	116
	117	#define MUTEX_LOCK(m) mutex_lock(*m)
ba869deb	118	#define MUTEX_UNLOCK(m) mutex_unlock(*m)
ba869deb GS	119	#define MUTEX_DESTROY(m) \
	120	STMT_START { \
	121	mutex_free(*m); \
	122	*m = 0; \
	123	} STMT_END
	124
	125	#define COND_INIT(c) \
	126	STMT_START { \
	127	*c = condition_alloc(); \
	128	if (*c) { \
	129	condition_init(*c); \
	130	} \
	131	else { \
28a80024 MHM	132	Perl_croak_nocontext("panic: COND_INIT [%s:%d]", \
28a80024 MHM	133	__FILE__, __LINE__); \
ba869deb GS	134	} \
ba869deb GS	135	} STMT_END
7f3d1cf1 BH	136
	137	#define COND_SIGNAL(c) condition_signal(*c)
	138	#define COND_BROADCAST(c) condition_broadcast(*c)
	139	#define COND_WAIT(c, m) condition_wait(c, m)
ba869deb GS	140	#define COND_DESTROY(c) \
	141	STMT_START { \
	142	condition_free(*c); \
	143	*c = 0; \
	144	} STMT_END
7f3d1cf1 BH	145
	146	#define THREAD_CREATE(thr, f) (thr->self = cthread_fork(f, thr), 0)
	147	#define THREAD_POST_CREATE(thr)
	148
	149	#define THREAD_RET_TYPE any_t
	150	#define THREAD_RET_CAST(x) ((any_t) x)
	151
	152	#define DETACH(t) cthread_detach(t->self)
	153	#define JOIN(t, avp) ((avp) = (AV )cthread_join(t->self))
	154
ba869deb GS	155	#define PERL_SET_CONTEXT(t) cthread_set_data(cthread_self(), t)
ba869deb GS	156	#define PERL_GET_CONTEXT cthread_data(cthread_self())
7f3d1cf1 BH	157
	158	#define INIT_THREADS cthread_init()
	159	#define YIELD cthread_yield()
ba869deb	160	#define ALLOC_THREAD_KEY NOOP
e1b5da64	161	#define FREE_THREAD_KEY NOOP
7f3d1cf1 BH	162	#define SET_THREAD_SELF(thr) (thr->self = cthread_self())
	163
	164	#endif /* I_MACH_CTHREADS */
	165
1cfa4ec7	166	#ifndef YIELD
e7a4f449 JH	167	# ifdef SCHED_YIELD
	168	# define YIELD SCHED_YIELD
	169	# else
	170	# ifdef HAS_SCHED_YIELD
	171	# define YIELD sched_yield()
	172	# else
	173	# ifdef HAS_PTHREAD_YIELD
	174	/* pthread_yield(NULL) platforms are expected
	175	* to have #defined YIELD for themselves. */
	176	# define YIELD pthread_yield()
	177	# endif
	178	# endif
	179	# endif
9731c6ca	180	#endif
11343788	181
227c31c3 JH	182	#ifdef __hpux
	183	# define MUTEX_INIT_NEEDS_MUTEX_ZEROED
	184	#endif
	185
ea0efc06	186	#ifndef MUTEX_INIT
ba869deb GS	187
ba869deb GS	188	# ifdef MUTEX_INIT_NEEDS_MUTEX_ZEROED
227c31c3	189	/* Temporary workaround, true bug is deeper. --jhi 1999-02-25 */
ba869deb	190	# define MUTEX_INIT(m) \
227c31c3	191	STMT_START { \
28a80024	192	int _eC_; \
227c31c3	193	Zero((m), 1, perl_mutex); \
28a80024 MHM	194	if ((_eC_ = pthread_mutex_init((m), pthread_mutexattr_default))) \
	195	Perl_croak_nocontext("panic: MUTEX_INIT (%d) [%s:%d]", \
	196	_eC_, __FILE__, __LINE__); \
227c31c3	197	} STMT_END
ba869deb GS	198	# else
ba869deb GS	199	# define MUTEX_INIT(m) \
ea0efc06	200	STMT_START { \
28a80024 MHM	201	int _eC_; \
	202	if ((_eC_ = pthread_mutex_init((m), pthread_mutexattr_default))) \
	203	Perl_croak_nocontext("panic: MUTEX_INIT (%d) [%s:%d]", \
	204	_eC_, __FILE__, __LINE__); \
ea0efc06	205	} STMT_END
ba869deb GS	206	# endif
	207
	208	# define MUTEX_LOCK(m) \
	209	STMT_START { \
28a80024 MHM	210	int _eC_; \
	211	if ((_eC_ = pthread_mutex_lock((m)))) \
	212	Perl_croak_nocontext("panic: MUTEX_LOCK (%d) [%s:%d]", \
	213	_eC_, __FILE__, __LINE__); \
cea2e8a9	214	} STMT_END
ba869deb	215
efc57feb	216	# define MUTEX_UNLOCK(m) \
ba869deb	217	STMT_START { \
28a80024 MHM	218	int _eC_; \
	219	if ((_eC_ = pthread_mutex_unlock((m)))) \
	220	Perl_croak_nocontext("panic: MUTEX_UNLOCK (%d) [%s:%d]", \
	221	_eC_, __FILE__, __LINE__); \
ea0efc06	222	} STMT_END
ba869deb GS	223
	224	# define MUTEX_DESTROY(m) \
	225	STMT_START { \
28a80024 MHM	226	int _eC_; \
	227	if ((_eC_ = pthread_mutex_destroy((m)))) \
	228	Perl_croak_nocontext("panic: MUTEX_DESTROY (%d) [%s:%d]", \
	229	_eC_, __FILE__, __LINE__); \
ea0efc06 MB	230	} STMT_END
	231	#endif /* MUTEX_INIT */
	232
	233	#ifndef COND_INIT
ba869deb	234	# define COND_INIT(c) \
ea0efc06	235	STMT_START { \
28a80024 MHM	236	int _eC_; \
	237	if ((_eC_ = pthread_cond_init((c), pthread_condattr_default))) \
	238	Perl_croak_nocontext("panic: COND_INIT (%d) [%s:%d]", \
	239	_eC_, __FILE__, __LINE__); \
ea0efc06	240	} STMT_END
ba869deb GS	241
	242	# define COND_SIGNAL(c) \
	243	STMT_START { \
28a80024 MHM	244	int _eC_; \
	245	if ((_eC_ = pthread_cond_signal((c)))) \
	246	Perl_croak_nocontext("panic: COND_SIGNAL (%d) [%s:%d]", \
	247	_eC_, __FILE__, __LINE__); \
ea0efc06	248	} STMT_END
ba869deb GS	249
	250	# define COND_BROADCAST(c) \
	251	STMT_START { \
28a80024 MHM	252	int _eC_; \
	253	if ((_eC_ = pthread_cond_broadcast((c)))) \
	254	Perl_croak_nocontext("panic: COND_BROADCAST (%d) [%s:%d]", \
	255	_eC_, __FILE__, __LINE__); \
ea0efc06	256	} STMT_END
ba869deb GS	257
	258	# define COND_WAIT(c, m) \
	259	STMT_START { \
28a80024 MHM	260	int _eC_; \
	261	if ((_eC_ = pthread_cond_wait((c), (m)))) \
	262	Perl_croak_nocontext("panic: COND_WAIT (%d) [%s:%d]", \
	263	_eC_, __FILE__, __LINE__); \
ea0efc06	264	} STMT_END
ba869deb GS	265
	266	# define COND_DESTROY(c) \
	267	STMT_START { \
28a80024 MHM	268	int _eC_; \
	269	if ((_eC_ = pthread_cond_destroy((c)))) \
	270	Perl_croak_nocontext("panic: COND_DESTROY (%d) [%s:%d]", \
	271	_eC_, __FILE__, __LINE__); \
ea0efc06 MB	272	} STMT_END
ea0efc06 MB	273	#endif /* COND_INIT */
33f46ff6	274
f826a10b	275	/* DETACH(t) must only be called while holding t->mutex */
ea0efc06	276	#ifndef DETACH
ba869deb GS	277	# define DETACH(t) \
ba869deb GS	278	STMT_START { \
28a80024 MHM	279	int _eC_; \
28a80024 MHM	280	if ((_eC_ = pthread_detach((t)->self))) { \
ba869deb	281	MUTEX_UNLOCK(&(t)->mutex); \
28a80024 MHM	282	Perl_croak_nocontext("panic: DETACH (%d) [%s:%d]", \
28a80024 MHM	283	_eC_, __FILE__, __LINE__); \
ba869deb	284	} \
ea0efc06 MB	285	} STMT_END
ea0efc06 MB	286	#endif /* DETACH */
33f46ff6	287
ea0efc06	288	#ifndef JOIN
ba869deb GS	289	# define JOIN(t, avp) \
ba869deb GS	290	STMT_START { \
28a80024 MHM	291	int _eC_; \
	292	if ((_eC_ = pthread_join((t)->self, (void**)(avp)))) \
	293	Perl_croak_nocontext("panic: pthread_join (%d) [%s:%d]", \
	294	_eC_, __FILE__, __LINE__); \
ea0efc06 MB	295	} STMT_END
	296	#endif /* JOIN */
	297
0953243c JH	298	/* Use an unchecked fetch of thread-specific data instead of a checked one.
	299	* It would fail if the key were bogus, but if the key were bogus then
	300	* Really Bad Things would be happening anyway. --dan */
026b9da6	301	#if (defined(__ALPHA) && (__VMS_VER >= 70000000)) \|\| \
cb23e6a4	302	(defined(__alpha) && defined(__osf__) && !defined(__GNUC__)) /* Available only on >= 4.0 */
8b8b35ab JH	303	# define HAS_PTHREAD_UNCHECKED_GETSPECIFIC_NP /* Configure test needed */
	304	#endif
	305
	306	#ifdef HAS_PTHREAD_UNCHECKED_GETSPECIFIC_NP
	307	# define PTHREAD_GETSPECIFIC(key) pthread_unchecked_getspecific_np(key)
	308	#else
6cfe8af5	309	# define PTHREAD_GETSPECIFIC(key) pthread_getspecific(key)
8b8b35ab JH	310	#endif
	311
	312	#ifndef PERL_GET_CONTEXT
	313	# define PERL_GET_CONTEXT PTHREAD_GETSPECIFIC(PL_thr_key)
ba869deb GS	314	#endif
	315
	316	#ifndef PERL_SET_CONTEXT
	317	# define PERL_SET_CONTEXT(t) \
	318	STMT_START { \
28a80024 MHM	319	int _eC_; \
	320	if ((_eC_ = pthread_setspecific(PL_thr_key, (void *)(t)))) \
	321	Perl_croak_nocontext("panic: pthread_setspecific (%d) [%s:%d]", \
	322	_eC_, __FILE__, __LINE__); \
ea0efc06	323	} STMT_END
ba869deb	324	#endif /* PERL_SET_CONTEXT */
ea0efc06	325
1feb2720 GS	326	#ifndef INIT_THREADS
	327	# ifdef NEED_PTHREAD_INIT
	328	# define INIT_THREADS pthread_init()
	329	# endif
0d85d877	330	#endif
ea0efc06	331
ba869deb GS	332	#ifndef ALLOC_THREAD_KEY
	333	# define ALLOC_THREAD_KEY \
	334	STMT_START { \
28a80024 MHM	335	int _eC_; \
	336	if ((_eC_ = pthread_key_create(&PL_thr_key, 0))) { \
	337	PerlIO_printf(PerlIO_stderr(), "panic: pthread_key_create (%d) [%s:%d]", \
	338	_eC_, __FILE__, __LINE__); \
c44d3fdb GS	339	exit(1); \
c44d3fdb GS	340	} \
ba869deb GS	341	} STMT_END
	342	#endif
	343
e1b5da64 GS	344	#ifndef FREE_THREAD_KEY
	345	# define FREE_THREAD_KEY \
	346	STMT_START { \
	347	pthread_key_delete(PL_thr_key); \
	348	} STMT_END
	349	#endif
	350
50dd6e57	351	#ifndef PTHREAD_ATFORK
144e72cb RS	352	# ifdef HAS_PTHREAD_ATFORK
144e72cb RS	353	# define PTHREAD_ATFORK(prepare,parent,child) \
de992003	354	pthread_atfork(prepare,parent,child)
144e72cb	355	# else
8ff9412f RS	356	# define PTHREAD_ATFORK(prepare,parent,child) \
8ff9412f RS	357	NOOP
144e72cb	358	# endif
50dd6e57 GS	359	#endif
50dd6e57 GS	360
1feb2720 GS	361	#ifndef THREAD_RET_TYPE
	362	# define THREAD_RET_TYPE void *
	363	# define THREAD_RET_CAST(p) ((void *)(p))
	364	#endif /* THREAD_RET */
	365
e2975953 JH	366	# define LOCK_DOLLARZERO_MUTEX MUTEX_LOCK(&PL_dollarzero_mutex)
	367	# define UNLOCK_DOLLARZERO_MUTEX MUTEX_UNLOCK(&PL_dollarzero_mutex)
	368
3db8f154	369	#endif /* USE_ITHREADS */
1feb2720 GS	370
	371	#ifndef MUTEX_LOCK
	372	# define MUTEX_LOCK(m)
	373	#endif
	374
1feb2720 GS	375	#ifndef MUTEX_UNLOCK
	376	# define MUTEX_UNLOCK(m)
	377	#endif
1feb2720 GS	378
	379	#ifndef MUTEX_INIT
	380	# define MUTEX_INIT(m)
	381	#endif
	382
	383	#ifndef MUTEX_DESTROY
	384	# define MUTEX_DESTROY(m)
	385	#endif
	386
	387	#ifndef COND_INIT
	388	# define COND_INIT(c)
	389	#endif
	390
	391	#ifndef COND_SIGNAL
	392	# define COND_SIGNAL(c)
	393	#endif
	394
	395	#ifndef COND_BROADCAST
	396	# define COND_BROADCAST(c)
	397	#endif
	398
	399	#ifndef COND_WAIT
	400	# define COND_WAIT(c, m)
	401	#endif
	402
	403	#ifndef COND_DESTROY
	404	# define COND_DESTROY(c)
	405	#endif
	406
	407	#ifndef LOCK_SV_MUTEX
	408	# define LOCK_SV_MUTEX
	409	#endif
	410
	411	#ifndef UNLOCK_SV_MUTEX
	412	# define UNLOCK_SV_MUTEX
	413	#endif
	414
	415	#ifndef LOCK_STRTAB_MUTEX
	416	# define LOCK_STRTAB_MUTEX
	417	#endif
	418
	419	#ifndef UNLOCK_STRTAB_MUTEX
	420	# define UNLOCK_STRTAB_MUTEX
	421	#endif
	422
	423	#ifndef LOCK_CRED_MUTEX
	424	# define LOCK_CRED_MUTEX
	425	#endif
	426
	427	#ifndef UNLOCK_CRED_MUTEX
	428	# define UNLOCK_CRED_MUTEX
	429	#endif
	430
4755096e GS	431	#ifndef LOCK_FDPID_MUTEX
	432	# define LOCK_FDPID_MUTEX
	433	#endif
	434
	435	#ifndef UNLOCK_FDPID_MUTEX
	436	# define UNLOCK_FDPID_MUTEX
	437	#endif
	438
631cfb58 GS	439	#ifndef LOCK_SV_LOCK_MUTEX
	440	# define LOCK_SV_LOCK_MUTEX
	441	#endif
	442
	443	#ifndef UNLOCK_SV_LOCK_MUTEX
	444	# define UNLOCK_SV_LOCK_MUTEX
	445	#endif
	446
e2975953 JH	447	#ifndef LOCK_DOLLARZERO_MUTEX
	448	# define LOCK_DOLLARZERO_MUTEX
	449	#endif
	450
	451	#ifndef UNLOCK_DOLLARZERO_MUTEX
	452	# define UNLOCK_DOLLARZERO_MUTEX
	453	#endif
	454
ba869deb	455	/* THR, SET_THR, and dTHR are there for compatibility with old versions */
1feb2720	456	#ifndef THR
ba869deb GS	457	# define THR PERL_GET_THX
	458	#endif
	459
	460	#ifndef SET_THR
	461	# define SET_THR(t) PERL_SET_THX(t)
1feb2720 GS	462	#endif
	463
	464	#ifndef dTHR
	465	# define dTHR dNOOP
	466	#endif
	467
	468	#ifndef INIT_THREADS
	469	# define INIT_THREADS NOOP
	470	#endif