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atomic.h
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libintl.h
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nlist.h
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note.h
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storclass.h
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syms.h
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synch.h
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thread.h
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Editing: synch.h
/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License (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 2014 Garrett D'Amore <garrett@damore.org> * Copyright (c) 1992, 2010, Oracle and/or its affiliates. All rights reserved. */ #ifndef _SYNCH_H #define _SYNCH_H /* * 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; /* rwstate word */ uint16_t type; uint16_t magic; mutex_t mutex; /* used with process-shared rwlocks */ cond_t readercv; /* used only to indicate ownership */ cond_t writercv; /* used only to indicate ownership */ } rwlock_t; 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_consistent(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 *); #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 /* * The *_held() functions apply equally well to Solaris threads * and to Posix threads synchronization objects, but the formal * type declarations are different, so we just declare the argument * to each *_held() function to be a void *, expecting that they will * be called with the proper type of argument in each case. */ int _sema_held(void *); /* sema_t or sem_t */ int _rw_read_held(void *); /* rwlock_t or pthread_rwlock_t */ int _rw_write_held(void *); /* rwlock_t or pthread_rwlock_t */ int _mutex_held(void *); /* mutex_t or pthread_mutex_t */ /* Pause API */ void smt_pause(void); #endif /* _ASM */ #ifdef __cplusplus } #endif #endif /* _SYNCH_H */
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