pthread.h revision 139902
113547Sjulian/* 213547Sjulian * Copyright (c) 1993, 1994 by Chris Provenzano, proven@mit.edu 335025Sjb * Copyright (c) 1995-1998 by John Birrell <jb@cimlogic.com.au> 413547Sjulian * All rights reserved. 513547Sjulian * 613547Sjulian * Redistribution and use in source and binary forms, with or without 713547Sjulian * modification, are permitted provided that the following conditions 813547Sjulian * are met: 913547Sjulian * 1. Redistributions of source code must retain the above copyright 1013547Sjulian * notice, this list of conditions and the following disclaimer. 1113547Sjulian * 2. Redistributions in binary form must reproduce the above copyright 1213547Sjulian * notice, this list of conditions and the following disclaimer in the 1313547Sjulian * documentation and/or other materials provided with the distribution. 1413547Sjulian * 3. All advertising materials mentioning features or use of this software 1513547Sjulian * must display the following acknowledgement: 1613547Sjulian * This product includes software developed by Chris Provenzano. 1713547Sjulian * 4. The name of Chris Provenzano may not be used to endorse or promote 1813547Sjulian * products derived from this software without specific prior written 1913547Sjulian * permission. 2013547Sjulian * 2113547Sjulian * THIS SOFTWARE IS PROVIDED BY CHRIS PROVENZANO ``AS IS'' AND 2213547Sjulian * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 2313547Sjulian * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 2413547Sjulian * ARE DISCLAIMED. IN NO EVENT SHALL CHRIS PROVENZANO BE LIABLE FOR ANY 2513547Sjulian * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2613547Sjulian * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2713547Sjulian * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 2813547Sjulian * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2913547Sjulian * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 3013547Sjulian * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 3113547Sjulian * SUCH DAMAGE. 3213547Sjulian * 3350473Speter * $FreeBSD: head/include/pthread.h 139902 2005-01-08 11:07:13Z davidxu $ 3413547Sjulian */ 3513547Sjulian#ifndef _PTHREAD_H_ 3613547Sjulian#define _PTHREAD_H_ 3713547Sjulian 3813547Sjulian/* 3913547Sjulian * Header files. 4013547Sjulian */ 4113547Sjulian#include <sys/cdefs.h> 4213547Sjulian#include <sys/types.h> 4313547Sjulian#include <sys/time.h> 4417706Sjulian#include <sys/signal.h> 4517706Sjulian#include <limits.h> 4644965Sjb#include <sched.h> 4713547Sjulian 4813547Sjulian/* 4917706Sjulian * Run-time invariant values: 5013547Sjulian */ 5117706Sjulian#define PTHREAD_DESTRUCTOR_ITERATIONS 4 5217706Sjulian#define PTHREAD_KEYS_MAX 256 5317706Sjulian#define PTHREAD_STACK_MIN 1024 5417706Sjulian#define PTHREAD_THREADS_MAX ULONG_MAX 55119736Sdavidxu#define PTHREAD_BARRIER_SERIAL_THREAD -1 5613547Sjulian 5713547Sjulian/* 5822315Sjulian * Flags for threads and thread attributes. 5922315Sjulian */ 6022315Sjulian#define PTHREAD_DETACHED 0x1 6122315Sjulian#define PTHREAD_SCOPE_SYSTEM 0x2 6222315Sjulian#define PTHREAD_INHERIT_SCHED 0x4 6322315Sjulian#define PTHREAD_NOFLOAT 0x8 6422315Sjulian 6522315Sjulian#define PTHREAD_CREATE_DETACHED PTHREAD_DETACHED 6622315Sjulian#define PTHREAD_CREATE_JOINABLE 0 6722315Sjulian#define PTHREAD_SCOPE_PROCESS 0 6822315Sjulian#define PTHREAD_EXPLICIT_SCHED 0 6922315Sjulian 7022315Sjulian/* 7138919Salex * Flags for read/write lock attributes 7238919Salex */ 7338919Salex#define PTHREAD_PROCESS_PRIVATE 0 7438919Salex#define PTHREAD_PROCESS_SHARED 1 7538919Salex 7638919Salex/* 7753812Salfred * Flags for cancelling threads 7853812Salfred */ 7953812Salfred#define PTHREAD_CANCEL_ENABLE 0 8053812Salfred#define PTHREAD_CANCEL_DISABLE 1 8153812Salfred#define PTHREAD_CANCEL_DEFERRED 0 8253812Salfred#define PTHREAD_CANCEL_ASYNCHRONOUS 2 8353812Salfred#define PTHREAD_CANCELED ((void *) 1) 8453812Salfred 8553812Salfred/* 8617706Sjulian * Forward structure definitions. 8717706Sjulian * 8817706Sjulian * These are mostly opaque to the user. 8913547Sjulian */ 9017706Sjulianstruct pthread; 9117706Sjulianstruct pthread_attr; 9217706Sjulianstruct pthread_cond; 9317706Sjulianstruct pthread_cond_attr; 9417706Sjulianstruct pthread_mutex; 9517706Sjulianstruct pthread_mutex_attr; 9617706Sjulianstruct pthread_once; 9738919Salexstruct pthread_rwlock; 9838919Salexstruct pthread_rwlockattr; 99119736Sdavidxustruct pthread_barrier; 100119736Sdavidxustruct pthread_barrier_attr; 101119909Sdavidxustruct pthread_spinlock; 10213547Sjulian 10313547Sjulian/* 10417706Sjulian * Primitive system data type definitions required by P1003.1c. 10517706Sjulian * 10617706Sjulian * Note that P1003.1c specifies that there are no defined comparison 10717706Sjulian * or assignment operators for the types pthread_attr_t, pthread_cond_t, 10817706Sjulian * pthread_condattr_t, pthread_mutex_t, pthread_mutexattr_t. 10913547Sjulian */ 11017706Sjuliantypedef struct pthread *pthread_t; 11117706Sjuliantypedef struct pthread_attr *pthread_attr_t; 11217706Sjuliantypedef struct pthread_mutex *pthread_mutex_t; 11317706Sjuliantypedef struct pthread_mutex_attr *pthread_mutexattr_t; 11417706Sjuliantypedef struct pthread_cond *pthread_cond_t; 11517706Sjuliantypedef struct pthread_cond_attr *pthread_condattr_t; 11617706Sjuliantypedef int pthread_key_t; 11717706Sjuliantypedef struct pthread_once pthread_once_t; 11838919Salextypedef struct pthread_rwlock *pthread_rwlock_t; 11938919Salextypedef struct pthread_rwlockattr *pthread_rwlockattr_t; 120119736Sdavidxutypedef struct pthread_barrier *pthread_barrier_t; 121119736Sdavidxutypedef struct pthread_barrierattr *pthread_barrierattr_t; 122119909Sdavidxutypedef struct pthread_spinlock *pthread_spinlock_t; 12313547Sjulian 12413547Sjulian/* 12517706Sjulian * Additional type definitions: 12617706Sjulian * 12717706Sjulian * Note that P1003.1c reserves the prefixes pthread_ and PTHREAD_ for 12817706Sjulian * use in header symbols. 12913547Sjulian */ 13017706Sjuliantypedef void *pthread_addr_t; 13193032Simptypedef void *(*pthread_startroutine_t)(void *); 13213547Sjulian 13313547Sjulian/* 13413547Sjulian * Once definitions. 13513547Sjulian */ 13613547Sjulianstruct pthread_once { 13717706Sjulian int state; 13817706Sjulian pthread_mutex_t mutex; 13913547Sjulian}; 14013547Sjulian 14113547Sjulian/* 14213547Sjulian * Flags for once initialization. 14313547Sjulian */ 14413547Sjulian#define PTHREAD_NEEDS_INIT 0 14513547Sjulian#define PTHREAD_DONE_INIT 1 14613547Sjulian 14713547Sjulian/* 14813547Sjulian * Static once initialization values. 14913547Sjulian */ 15017706Sjulian#define PTHREAD_ONCE_INIT { PTHREAD_NEEDS_INIT, NULL } 15113547Sjulian 15213547Sjulian/* 15335025Sjb * Static initialization values. 15413547Sjulian */ 15535025Sjb#define PTHREAD_MUTEX_INITIALIZER NULL 15635025Sjb#define PTHREAD_COND_INITIALIZER NULL 15738919Salex#define PTHREAD_RWLOCK_INITIALIZER NULL 15835025Sjb 15935025Sjb/* 16035025Sjb * Default attribute arguments (draft 4, deprecated). 16135025Sjb */ 16222315Sjulian#ifndef PTHREAD_KERNEL 16313547Sjulian#define pthread_condattr_default NULL 16413547Sjulian#define pthread_mutexattr_default NULL 16513547Sjulian#define pthread_attr_default NULL 16613547Sjulian#endif 16713547Sjulian 16844965Sjb#define PTHREAD_PRIO_NONE 0 16944965Sjb#define PTHREAD_PRIO_INHERIT 1 17044965Sjb#define PTHREAD_PRIO_PROTECT 2 17144965Sjb 17244965Sjb/* 17344965Sjb * Mutex types (Single UNIX Specification, Version 2, 1997). 17444965Sjb * 17544965Sjb * Note that a mutex attribute with one of the following types: 17644965Sjb * 17744965Sjb * PTHREAD_MUTEX_NORMAL 17844965Sjb * PTHREAD_MUTEX_RECURSIVE 17944965Sjb * MUTEX_TYPE_FAST (deprecated) 18044965Sjb * MUTEX_TYPE_COUNTING_FAST (deprecated) 18144965Sjb * 18244965Sjb * will deviate from POSIX specified semantics. 18344965Sjb */ 18419637Shsuenum pthread_mutextype { 18544965Sjb PTHREAD_MUTEX_ERRORCHECK = 1, /* Default POSIX mutex */ 18644965Sjb PTHREAD_MUTEX_RECURSIVE = 2, /* Recursive mutex */ 18744965Sjb PTHREAD_MUTEX_NORMAL = 3, /* No error checking */ 18819637Shsu MUTEX_TYPE_MAX 18919637Shsu}; 19019637Shsu 19144965Sjb#define PTHREAD_MUTEX_DEFAULT PTHREAD_MUTEX_ERRORCHECK 19244965Sjb#define MUTEX_TYPE_FAST PTHREAD_MUTEX_NORMAL 19341390Seivind#define MUTEX_TYPE_COUNTING_FAST PTHREAD_MUTEX_RECURSIVE 19441390Seivind 19513547Sjulian/* 19613547Sjulian * Thread function prototype definitions: 19713547Sjulian */ 19813547Sjulian__BEGIN_DECLS 199122076Sdeischenint pthread_atfork(void (*prepare)(void), void (*parent)(void), 200122076Sdeischen void (*child)(void)); 20193032Simpint pthread_attr_destroy(pthread_attr_t *); 202110636Salfredint pthread_attr_getstack(const pthread_attr_t * __restrict, 203110636Salfred void ** __restrict stackaddr, 204110636Salfred size_t * __restrict stacksize); 20593032Simpint pthread_attr_getstacksize(const pthread_attr_t *, size_t *); 20693032Simpint pthread_attr_getguardsize(const pthread_attr_t *, size_t *); 20793032Simpint pthread_attr_getstackaddr(const pthread_attr_t *, void **); 20893032Simpint pthread_attr_getdetachstate(const pthread_attr_t *, int *); 20993032Simpint pthread_attr_init(pthread_attr_t *); 21093032Simpint pthread_attr_setstacksize(pthread_attr_t *, size_t); 21193032Simpint pthread_attr_setguardsize(pthread_attr_t *, size_t); 212110636Salfredint pthread_attr_setstack(pthread_attr_t *, void *, size_t); 21393032Simpint pthread_attr_setstackaddr(pthread_attr_t *, void *); 21493032Simpint pthread_attr_setdetachstate(pthread_attr_t *, int); 215119736Sdavidxuint pthread_barrier_destroy(pthread_barrier_t *); 216119736Sdavidxuint pthread_barrier_init(pthread_barrier_t *, 217119736Sdavidxu const pthread_barrierattr_t *, unsigned); 218119736Sdavidxuint pthread_barrier_wait(pthread_barrier_t *); 219119736Sdavidxuint pthread_barrierattr_destroy(pthread_barrierattr_t *); 220119736Sdavidxuint pthread_barrierattr_getpshared(const pthread_barrierattr_t *, 221119736Sdavidxu int *); 222119736Sdavidxuint pthread_barrierattr_init(pthread_barrierattr_t *); 223119736Sdavidxuint pthread_barrierattr_setpshared(pthread_barrierattr_t *, int); 22493032Simpvoid pthread_cleanup_pop(int); 22593032Simpvoid pthread_cleanup_push(void (*) (void *), void *routine_arg); 22693032Simpint pthread_condattr_destroy(pthread_condattr_t *); 22793032Simpint pthread_condattr_init(pthread_condattr_t *); 22844965Sjb 22993032Simpint pthread_cond_broadcast(pthread_cond_t *); 23093032Simpint pthread_cond_destroy(pthread_cond_t *); 23193032Simpint pthread_cond_init(pthread_cond_t *, 23293032Simp const pthread_condattr_t *); 23393032Simpint pthread_cond_signal(pthread_cond_t *); 23493032Simpint pthread_cond_timedwait(pthread_cond_t *, 23593032Simp pthread_mutex_t *, const struct timespec *); 23693032Simpint pthread_cond_wait(pthread_cond_t *, pthread_mutex_t *); 23793032Simpint pthread_create(pthread_t *, const pthread_attr_t *, 23893032Simp void *(*) (void *), void *); 23993032Simpint pthread_detach(pthread_t); 24093032Simpint pthread_equal(pthread_t, pthread_t); 24193032Simpvoid pthread_exit(void *) __dead2; 24293032Simpvoid *pthread_getspecific(pthread_key_t); 24393032Simpint pthread_join(pthread_t, void **); 24493032Simpint pthread_key_create(pthread_key_t *, 24593032Simp void (*) (void *)); 24693032Simpint pthread_key_delete(pthread_key_t); 24793032Simpint pthread_kill(pthread_t, int); 24893032Simpint pthread_mutexattr_init(pthread_mutexattr_t *); 24993032Simpint pthread_mutexattr_destroy(pthread_mutexattr_t *); 25093032Simpint pthread_mutexattr_gettype(pthread_mutexattr_t *, int *); 25193032Simpint pthread_mutexattr_settype(pthread_mutexattr_t *, int); 25293032Simpint pthread_mutex_destroy(pthread_mutex_t *); 25393032Simpint pthread_mutex_init(pthread_mutex_t *, 25493032Simp const pthread_mutexattr_t *); 25593032Simpint pthread_mutex_lock(pthread_mutex_t *); 25693032Simpint pthread_mutex_trylock(pthread_mutex_t *); 257119736Sdavidxuint pthread_mutex_timedlock(pthread_mutex_t *, 258119736Sdavidxu const struct timespec *); 25993032Simpint pthread_mutex_unlock(pthread_mutex_t *); 26093032Simpint pthread_once(pthread_once_t *, void (*) (void)); 26193032Simpint pthread_rwlock_destroy(pthread_rwlock_t *); 26293032Simpint pthread_rwlock_init(pthread_rwlock_t *, 26393032Simp const pthread_rwlockattr_t *); 26493032Simpint pthread_rwlock_rdlock(pthread_rwlock_t *); 265119790Sdavidxuint pthread_rwlock_timedrdlock(pthread_rwlock_t *, 266119790Sdavidxu const struct timespec *); 267139902Sdavidxuint pthread_rwlock_timedwrlock(pthread_rwlock_t *, 268119790Sdavidxu const struct timespec *); 26993032Simpint pthread_rwlock_tryrdlock(pthread_rwlock_t *); 27093032Simpint pthread_rwlock_trywrlock(pthread_rwlock_t *); 27193032Simpint pthread_rwlock_unlock(pthread_rwlock_t *); 27293032Simpint pthread_rwlock_wrlock(pthread_rwlock_t *); 27393032Simpint pthread_rwlockattr_init(pthread_rwlockattr_t *); 27493032Simpint pthread_rwlockattr_getpshared(const pthread_rwlockattr_t *, 27593032Simp int *); 27693032Simpint pthread_rwlockattr_setpshared(pthread_rwlockattr_t *, int); 27793032Simpint pthread_rwlockattr_destroy(pthread_rwlockattr_t *); 27893032Simppthread_t pthread_self(void); 27993032Simpint pthread_setspecific(pthread_key_t, const void *); 28093032Simpint pthread_sigmask(int, const sigset_t *, sigset_t *); 28117706Sjulian 282119909Sdavidxuint pthread_spin_init(pthread_spinlock_t *, int); 283119909Sdavidxuint pthread_spin_destroy(pthread_spinlock_t *); 284119909Sdavidxuint pthread_spin_lock(pthread_spinlock_t *); 285119909Sdavidxuint pthread_spin_trylock(pthread_spinlock_t *); 286119909Sdavidxuint pthread_spin_unlock(pthread_spinlock_t *); 28793032Simpint pthread_cancel(pthread_t); 28893032Simpint pthread_setcancelstate(int, int *); 28993032Simpint pthread_setcanceltype(int, int *); 29093032Simpvoid pthread_testcancel(void); 29117706Sjulian 29293032Simpint pthread_getprio(pthread_t); 29393032Simpint pthread_setprio(pthread_t, int); 29493032Simpvoid pthread_yield(void); 29544965Sjb 29693032Simpint pthread_mutexattr_getprioceiling(pthread_mutexattr_t *, 29793032Simp int *); 29893032Simpint pthread_mutexattr_setprioceiling(pthread_mutexattr_t *, 29993032Simp int); 30093032Simpint pthread_mutex_getprioceiling(pthread_mutex_t *, int *); 30193032Simpint pthread_mutex_setprioceiling(pthread_mutex_t *, int, int *); 30244965Sjb 30393032Simpint pthread_mutexattr_getprotocol(pthread_mutexattr_t *, int *); 30493032Simpint pthread_mutexattr_setprotocol(pthread_mutexattr_t *, int); 30544965Sjb 30693032Simpint pthread_attr_getinheritsched(const pthread_attr_t *, int *); 30793032Simpint pthread_attr_getschedparam(const pthread_attr_t *, 30893032Simp struct sched_param *); 30993032Simpint pthread_attr_getschedpolicy(const pthread_attr_t *, int *); 31093032Simpint pthread_attr_getscope(const pthread_attr_t *, int *); 31193032Simpint pthread_attr_setinheritsched(pthread_attr_t *, int); 31293032Simpint pthread_attr_setschedparam(pthread_attr_t *, 31393032Simp const struct sched_param *); 31493032Simpint pthread_attr_setschedpolicy(pthread_attr_t *, int); 31593032Simpint pthread_attr_setscope(pthread_attr_t *, int); 31693032Simpint pthread_getschedparam(pthread_t pthread, int *, 31793032Simp struct sched_param *); 31893032Simpint pthread_setschedparam(pthread_t, int, 31993032Simp const struct sched_param *); 320113729Sjdpint pthread_getconcurrency(void); 321113729Sjdpint pthread_setconcurrency(int); 32213547Sjulian__END_DECLS 32313547Sjulian 32413547Sjulian#endif 325