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Diffstat (limited to 'contrib/opensolaris/head/synch.h')
| -rw-r--r-- | contrib/opensolaris/head/synch.h | 264 |
1 files changed, 0 insertions, 264 deletions
diff --git a/contrib/opensolaris/head/synch.h b/contrib/opensolaris/head/synch.h deleted file mode 100644 index 8d825d5..0000000 --- a/contrib/opensolaris/head/synch.h +++ /dev/null @@ -1,264 +0,0 @@ -/* - * CDDL HEADER START - * - * The contents of this file are subject to the terms of the - * Common Development and Distribution License, Version 1.0 only - * (the "License"). You may not use this file except in compliance - * with the License. - * - * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE - * or http://www.opensolaris.org/os/licensing. - * See the License for the specific language governing permissions - * and limitations under the License. - * - * When distributing Covered Code, include this CDDL HEADER in each - * file and include the License file at usr/src/OPENSOLARIS.LICENSE. - * If applicable, add the following below this CDDL HEADER, with the - * fields enclosed by brackets "[]" replaced with your own identifying - * information: Portions Copyright [yyyy] [name of copyright owner] - * - * CDDL HEADER END - */ -/* - * Copyright 2003 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. - */ - -#ifndef _SYNCH_H -#define _SYNCH_H - -#pragma ident "%Z%%M% %I% %E% SMI" - -/* - * synch.h: - * definitions needed to use the thread synchronization interface - */ - -#ifndef _ASM -#include <sys/machlock.h> -#include <sys/time_impl.h> -#include <sys/synch.h> -#endif /* _ASM */ - -#ifdef __cplusplus -extern "C" { -#endif - -#ifndef _ASM - -/* - * Semaphores - */ -typedef struct _sema { - /* this structure must be the same as sem_t in <semaphore.h> */ - uint32_t count; /* semaphore count */ - uint16_t type; - uint16_t magic; - upad64_t pad1[3]; /* reserved for a mutex_t */ - upad64_t pad2[2]; /* reserved for a cond_t */ -} sema_t; - -/* - * POSIX.1c Note: - * POSIX.1c requires that <pthread.h> define the structures pthread_mutex_t - * and pthread_cond_t. These structures are identical to mutex_t (lwp_mutex_t) - * and cond_t (lwp_cond_t) which are defined in <synch.h>. A nested included - * of <synch.h> (to allow a "#typedef mutex_t pthread_mutex_t") would pull in - * non-posix symbols/constants violating the namespace restrictions. Hence, - * pthread_mutex_t/pthread_cond_t have been redefined in <pthread.h> (actually - * in <sys/types.h>). Any modifications done to mutex_t/lwp_mutex_t or - * cond_t/lwp_cond_t should also be done to pthread_mutex_t/pthread_cond_t. - */ -typedef lwp_mutex_t mutex_t; -typedef lwp_cond_t cond_t; - -/* - * Readers/writer locks - * - * NOTE: The layout of this structure should be kept in sync with the layout - * of the correponding structure of pthread_rwlock_t in sys/types.h. - * Also, there is an identical structure for lwp_rwlock_t in <sys/synch.h>. - * Because we have to deal with C++, we cannot redefine this one as that one. - */ -typedef struct _rwlock { - int32_t readers; /* -1 == writer else # of readers */ - uint16_t type; - uint16_t magic; - mutex_t mutex; /* used to indicate ownership */ - cond_t readercv; /* unused */ - cond_t writercv; /* unused */ -} rwlock_t; - -#ifdef __STDC__ -int _lwp_mutex_lock(lwp_mutex_t *); -int _lwp_mutex_unlock(lwp_mutex_t *); -int _lwp_mutex_trylock(lwp_mutex_t *); -int _lwp_cond_wait(lwp_cond_t *, lwp_mutex_t *); -int _lwp_cond_timedwait(lwp_cond_t *, lwp_mutex_t *, timespec_t *); -int _lwp_cond_reltimedwait(lwp_cond_t *, lwp_mutex_t *, timespec_t *); -int _lwp_cond_signal(lwp_cond_t *); -int _lwp_cond_broadcast(lwp_cond_t *); -int _lwp_sema_init(lwp_sema_t *, int); -int _lwp_sema_wait(lwp_sema_t *); -int _lwp_sema_trywait(lwp_sema_t *); -int _lwp_sema_post(lwp_sema_t *); -int cond_init(cond_t *, int, void *); -int cond_destroy(cond_t *); -int cond_wait(cond_t *, mutex_t *); -int cond_timedwait(cond_t *, mutex_t *, const timespec_t *); -int cond_reltimedwait(cond_t *, mutex_t *, const timespec_t *); -int cond_signal(cond_t *); -int cond_broadcast(cond_t *); -int mutex_init(mutex_t *, int, void *); -int mutex_destroy(mutex_t *); -int mutex_lock(mutex_t *); -int mutex_trylock(mutex_t *); -int mutex_unlock(mutex_t *); -int rwlock_init(rwlock_t *, int, void *); -int rwlock_destroy(rwlock_t *); -int rw_rdlock(rwlock_t *); -int rw_wrlock(rwlock_t *); -int rw_unlock(rwlock_t *); -int rw_tryrdlock(rwlock_t *); -int rw_trywrlock(rwlock_t *); -int sema_init(sema_t *, unsigned int, int, void *); -int sema_destroy(sema_t *); -int sema_wait(sema_t *); -int sema_timedwait(sema_t *, const timespec_t *); -int sema_reltimedwait(sema_t *, const timespec_t *); -int sema_post(sema_t *); -int sema_trywait(sema_t *); - -#else /* __STDC__ */ - -int _lwp_mutex_lock(); -int _lwp_mutex_unlock(); -int _lwp_mutex_trylock(); -int _lwp_cond_wait(); -int _lwp_cond_timedwait(); -int _lwp_cond_reltimedwait(); -int _lwp_cond_signal(); -int _lwp_cond_broadcast(); -int _lwp_sema_init(); -int _lwp_sema_wait(); -int _lwp_sema_trywait(); -int _lwp_sema_post(); -int cond_init(); -int cond_destroy(); -int cond_wait(); -int cond_timedwait(); -int cond_reltimedwait(); -int cond_signal(); -int cond_broadcast(); -int mutex_init(); -int mutex_destroy(); -int mutex_lock(); -int mutex_trylock(); -int mutex_unlock(); -int rwlock_init(); -int rwlock_destroy(); -int rw_rdlock(); -int rw_wrlock(); -int rw_unlock(); -int rw_tryrdlock(); -int rw_trywrlock(); -int sema_init(); -int sema_destroy(); -int sema_wait(); -int sema_timedwait(); -int sema_reltimedwait(); -int sema_post(); -int sema_trywait(); - -#endif /* __STDC__ */ - -#endif /* _ASM */ - -/* "Magic numbers" tagging synchronization object types */ -#define MUTEX_MAGIC _MUTEX_MAGIC -#define SEMA_MAGIC _SEMA_MAGIC -#define COND_MAGIC _COND_MAGIC -#define RWL_MAGIC _RWL_MAGIC - -/* - * POSIX.1c Note: - * DEFAULTMUTEX is defined same as PTHREAD_MUTEX_INITIALIZER in <pthread.h>. - * DEFAULTCV is defined same as PTHREAD_COND_INITIALIZER in <pthread.h>. - * DEFAULTRWLOCK is defined same as PTHREAD_RWLOCK_INITIALIZER in <pthread.h>. - * Any changes to these macros should be reflected in <pthread.h> - */ -#define DEFAULTMUTEX \ - {{0, 0, 0, {USYNC_THREAD}, MUTEX_MAGIC}, \ - {{{0, 0, 0, 0, 0, 0, 0, 0}}}, 0} -#define SHAREDMUTEX \ - {{0, 0, 0, {USYNC_PROCESS}, MUTEX_MAGIC}, \ - {{{0, 0, 0, 0, 0, 0, 0, 0}}}, 0} -#define RECURSIVEMUTEX \ - {{0, 0, 0, {USYNC_THREAD|LOCK_RECURSIVE}, MUTEX_MAGIC}, \ - {{{0, 0, 0, 0, 0, 0, 0, 0}}}, 0} -#define ERRORCHECKMUTEX \ - {{0, 0, 0, {USYNC_THREAD|LOCK_ERRORCHECK}, MUTEX_MAGIC}, \ - {{{0, 0, 0, 0, 0, 0, 0, 0}}}, 0} -#define RECURSIVE_ERRORCHECKMUTEX \ - {{0, 0, 0, {USYNC_THREAD|LOCK_RECURSIVE|LOCK_ERRORCHECK}, \ - MUTEX_MAGIC}, {{{0, 0, 0, 0, 0, 0, 0, 0}}}, 0} -#define DEFAULTCV \ - {{{0, 0, 0, 0}, USYNC_THREAD, COND_MAGIC}, 0} -#define SHAREDCV \ - {{{0, 0, 0, 0}, USYNC_PROCESS, COND_MAGIC}, 0} -#define DEFAULTSEMA \ - {0, USYNC_THREAD, SEMA_MAGIC, {0, 0, 0}, {0, 0}} -#define SHAREDSEMA \ - {0, USYNC_PROCESS, SEMA_MAGIC, {0, 0, 0}, {0, 0}} -#define DEFAULTRWLOCK \ - {0, USYNC_THREAD, RWL_MAGIC, DEFAULTMUTEX, DEFAULTCV, DEFAULTCV} -#define SHAREDRWLOCK \ - {0, USYNC_PROCESS, RWL_MAGIC, SHAREDMUTEX, SHAREDCV, SHAREDCV} - -/* - * Tests on lock states. - */ -#define SEMA_HELD(x) _sema_held(x) -#define RW_READ_HELD(x) _rw_read_held(x) -#define RW_WRITE_HELD(x) _rw_write_held(x) -#define RW_LOCK_HELD(x) (RW_READ_HELD(x) || RW_WRITE_HELD(x)) -#define MUTEX_HELD(x) _mutex_held(x) - -/* - * The following definitions are for assertions which can be checked - * statically by tools like lock_lint. You can also define your own - * run-time test for each. If you don't, we define them to 1 so that - * such assertions simply pass. - */ -#ifndef NO_LOCKS_HELD -#define NO_LOCKS_HELD 1 -#endif -#ifndef NO_COMPETING_THREADS -#define NO_COMPETING_THREADS 1 -#endif - -#ifndef _ASM - -#ifdef __STDC__ - -int _sema_held(sema_t *); -int _rw_read_held(rwlock_t *); -int _rw_write_held(rwlock_t *); -int _mutex_held(mutex_t *); - -#else /* __STDC__ */ - -int _sema_held(); -int _rw_read_held(); -int _rw_write_held(); -int _mutex_held(); - -#endif /* __STDC__ */ - -#endif /* _ASM */ - -#ifdef __cplusplus -} -#endif - -#endif /* _SYNCH_H */ |
