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/* $OpenBSD: pthread.h,v 1.29 2008/12/18 09:30:32 guenther Exp $ */
/*
* Copyright (c) 1993, 1994 by Chris Provenzano, proven@mit.edu
* Copyright (c) 1995-1998 by John Birrell <jb@cimlogic.com.au>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Chris Provenzano.
* 4. The name of Chris Provenzano may not be used to endorse or promote
* products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY CHRIS PROVENZANO ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL CHRIS PROVENZANO BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD: pthread.h,v 1.13 1999/07/31 08:36:07 rse Exp $
*/
#ifndef _PTHREAD_H_
#define _PTHREAD_H_
/* Previous releases of OpenBSD used a hacked gcc that defined this */
#ifdef _POSIX_THREADS
#undef _POSIX_THREADS /* Allow to be defined below */
#endif
/*
* Header files.
*/
#include <sys/cdefs.h>
#include <sys/types.h>
#include <sys/time.h>
#include <sys/signal.h>
#include <limits.h>
#include <sched.h>
/*
* Run-time invariant values:
*/
#define PTHREAD_DESTRUCTOR_ITERATIONS 4
#define PTHREAD_KEYS_MAX 256
#define PTHREAD_STACK_MIN 2048
#define PTHREAD_THREADS_MAX ULONG_MAX
/*
* Compile time symbolic constants for portability specifications:
*
* Note that those commented out are not currently supported by the
* implementation.
*/
#define _POSIX_THREADS 1
#define _POSIX_THREAD_ATTR_STACKADDR 1
#define _POSIX_THREAD_ATTR_STACKSIZE 1
#define _POSIX_THREAD_PRIORITY_SCHEDULING 1
#define _POSIX_THREAD_PRIO_INHERIT 1
#define _POSIX_THREAD_PRIO_PROTECT 1
/* #define _POSIX_THREAD_PROCESS_SHARED */
/*
* Flags for threads and thread attributes.
*/
#define PTHREAD_DETACHED 0x1
#define PTHREAD_SCOPE_SYSTEM 0x2
#define PTHREAD_INHERIT_SCHED 0x4
#define PTHREAD_NOFLOAT 0x8
#define PTHREAD_CREATE_DETACHED PTHREAD_DETACHED
#define PTHREAD_CREATE_JOINABLE 0
#define PTHREAD_SCOPE_PROCESS 0
#define PTHREAD_EXPLICIT_SCHED 0
/*
* Flags for read/write lock attributes
*/
#define PTHREAD_PROCESS_PRIVATE 0
#define PTHREAD_PROCESS_SHARED 1
/*
* Flags for cancelling threads
*/
#define PTHREAD_CANCEL_ENABLE 0
#define PTHREAD_CANCEL_DISABLE 1
#define PTHREAD_CANCEL_DEFERRED 0
#define PTHREAD_CANCEL_ASYNCHRONOUS 2
#define PTHREAD_CANCELED ((void *) 1)
/*
* Forward structure definitions.
*
* These are mostly opaque to the user.
*/
struct pthread;
struct pthread_attr;
struct pthread_cond;
struct pthread_cond_attr;
struct pthread_mutex;
struct pthread_mutex_attr;
struct pthread_once;
struct pthread_rwlock;
struct pthread_rwlockattr;
/*
* Primitive system data type definitions required by P1003.1c.
*
* Note that P1003.1c specifies that there are no defined comparison
* or assignment operators for the types pthread_attr_t, pthread_cond_t,
* pthread_condattr_t, pthread_mutex_t, pthread_mutexattr_t.
*/
typedef struct pthread *pthread_t;
typedef struct pthread_attr *pthread_attr_t;
typedef volatile struct pthread_mutex *pthread_mutex_t;
typedef struct pthread_mutex_attr *pthread_mutexattr_t;
typedef struct pthread_cond *pthread_cond_t;
typedef struct pthread_cond_attr *pthread_condattr_t;
typedef volatile int pthread_key_t;
typedef struct pthread_once pthread_once_t;
typedef struct pthread_rwlock *pthread_rwlock_t;
typedef struct pthread_rwlockattr *pthread_rwlockattr_t;
/*
* Additional type definitions:
*
* Note that P1003.1c reserves the prefixes pthread_ and PTHREAD_ for
* use in header symbols.
*/
typedef void *pthread_addr_t;
typedef void *(*pthread_startroutine_t)(void *);
/*
* Once definitions.
*/
struct pthread_once {
int state;
pthread_mutex_t mutex;
};
/*
* Flags for once initialization.
*/
#define PTHREAD_NEEDS_INIT 0
#define PTHREAD_DONE_INIT 1
/*
* Static once initialization values.
*/
#define PTHREAD_ONCE_INIT { PTHREAD_NEEDS_INIT, PTHREAD_MUTEX_INITIALIZER }
/*
* Static initialization values.
*/
#define PTHREAD_MUTEX_INITIALIZER NULL
#define PTHREAD_COND_INITIALIZER NULL
#define PTHREAD_RWLOCK_INITIALIZER NULL
#define PTHREAD_PRIO_NONE 0
#define PTHREAD_PRIO_INHERIT 1
#define PTHREAD_PRIO_PROTECT 2
/*
* Mutex types (Single UNIX Specification, Version 2, 1997).
*
* Note that a mutex attribute with one of the following types:
*
* PTHREAD_MUTEX_NORMAL
* PTHREAD_MUTEX_RECURSIVE
*
* will deviate from POSIX specified semantics.
*/
enum pthread_mutextype {
PTHREAD_MUTEX_ERRORCHECK = 1, /* Default POSIX mutex */
PTHREAD_MUTEX_RECURSIVE = 2, /* Recursive mutex */
PTHREAD_MUTEX_NORMAL = 3, /* No error checking */
PTHREAD_MUTEX_TYPE_MAX
};
#define PTHREAD_MUTEX_DEFAULT PTHREAD_MUTEX_ERRORCHECK
/*
* Thread function prototype definitions:
*/
__BEGIN_DECLS
int pthread_atfork(void (*)(void), void (*)(void), void (*)(void));
int pthread_attr_destroy(pthread_attr_t *);
int pthread_attr_getstack(const pthread_attr_t *,
void **, size_t *);
int pthread_attr_getstacksize(const pthread_attr_t *, size_t *);
int pthread_attr_getstackaddr(const pthread_attr_t *, void **);
int pthread_attr_getguardsize(const pthread_attr_t *, size_t *);
int pthread_attr_getdetachstate(const pthread_attr_t *, int *);
int pthread_attr_init(pthread_attr_t *);
int pthread_attr_setstacksize(pthread_attr_t *, size_t);
int pthread_attr_setstack(pthread_attr_t *, void *, size_t);
int pthread_attr_setstackaddr(pthread_attr_t *, void *);
int pthread_attr_setguardsize(pthread_attr_t *, size_t);
int pthread_attr_setdetachstate(pthread_attr_t *, int);
void pthread_cleanup_pop(int);
void pthread_cleanup_push(void (*) (void *), void *routine_arg);
int pthread_condattr_destroy(pthread_condattr_t *);
int pthread_condattr_init(pthread_condattr_t *);
int pthread_cond_broadcast(pthread_cond_t *);
int pthread_cond_destroy(pthread_cond_t *);
int pthread_cond_init(pthread_cond_t *,
const pthread_condattr_t *);
int pthread_cond_signal(pthread_cond_t *);
int pthread_cond_timedwait(pthread_cond_t *,
pthread_mutex_t *, const struct timespec *);
int pthread_cond_wait(pthread_cond_t *, pthread_mutex_t *);
int pthread_create(pthread_t *, const pthread_attr_t *,
void *(*) (void *), void *);
int pthread_detach(pthread_t);
int pthread_equal(pthread_t, pthread_t);
__dead void pthread_exit(void *);
void *pthread_getspecific(pthread_key_t);
int pthread_join(pthread_t, void **);
int pthread_key_create(pthread_key_t *,
void (*) (void *));
int pthread_key_delete(pthread_key_t);
int pthread_kill(pthread_t, int);
int pthread_mutexattr_init(pthread_mutexattr_t *);
int pthread_mutexattr_destroy(pthread_mutexattr_t *);
int pthread_mutexattr_gettype(pthread_mutexattr_t *, int *);
int pthread_mutexattr_settype(pthread_mutexattr_t *, int);
int pthread_mutex_destroy(pthread_mutex_t *);
int pthread_mutex_init(pthread_mutex_t *,
const pthread_mutexattr_t *);
int pthread_mutex_lock(pthread_mutex_t *);
int pthread_mutex_trylock(pthread_mutex_t *);
int pthread_mutex_unlock(pthread_mutex_t *);
int pthread_once(pthread_once_t *, void (*) (void));
int pthread_rwlock_destroy(pthread_rwlock_t *);
int pthread_rwlock_init(pthread_rwlock_t *,
const pthread_rwlockattr_t *);
int pthread_rwlock_rdlock(pthread_rwlock_t *);
int pthread_rwlock_tryrdlock(pthread_rwlock_t *);
int pthread_rwlock_trywrlock(pthread_rwlock_t *);
int pthread_rwlock_unlock(pthread_rwlock_t *);
int pthread_rwlock_wrlock(pthread_rwlock_t *);
int pthread_rwlockattr_init(pthread_rwlockattr_t *);
int pthread_rwlockattr_getpshared(const pthread_rwlockattr_t *,
int *);
int pthread_rwlockattr_setpshared(pthread_rwlockattr_t *, int);
int pthread_rwlockattr_destroy(pthread_rwlockattr_t *);
pthread_t pthread_self(void);
int pthread_setspecific(pthread_key_t, const void *);
int pthread_sigmask(int, const sigset_t *, sigset_t *);
int pthread_cancel(pthread_t);
int pthread_setcancelstate(int, int *);
int pthread_setcanceltype(int, int *);
void pthread_testcancel(void);
int pthread_getprio(pthread_t);
int pthread_setprio(pthread_t, int);
void pthread_yield(void);
int pthread_mutexattr_getprioceiling(pthread_mutexattr_t *,
int *);
int pthread_mutexattr_setprioceiling(pthread_mutexattr_t *,
int);
int pthread_mutex_getprioceiling(pthread_mutex_t *, int *);
int pthread_mutex_setprioceiling(pthread_mutex_t *, int, int *);
int pthread_mutexattr_getprotocol(pthread_mutexattr_t *, int *);
int pthread_mutexattr_setprotocol(pthread_mutexattr_t *, int);
int pthread_attr_getinheritsched(const pthread_attr_t *, int *);
int pthread_attr_getschedparam(const pthread_attr_t *,
struct sched_param *);
int pthread_attr_getschedpolicy(const pthread_attr_t *, int *);
int pthread_attr_getscope(const pthread_attr_t *, int *);
int pthread_attr_setinheritsched(pthread_attr_t *, int);
int pthread_attr_setschedparam(pthread_attr_t *,
const struct sched_param *);
int pthread_attr_setschedpolicy(pthread_attr_t *, int);
int pthread_attr_setscope(pthread_attr_t *, int);
int pthread_getschedparam(pthread_t pthread, int *,
struct sched_param *);
int pthread_setschedparam(pthread_t, int,
const struct sched_param *);
int pthread_getconcurrency(void);
int pthread_setconcurrency(int);
__END_DECLS
#endif /* _PTHREAD_H_ */
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