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/*
 * 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: release/9.1.0/include/pthread.h 217039 2011-01-06 03:30:16Z davidxu $
 */
#ifndef _PTHREAD_H_
#define _PTHREAD_H_

/*
 * Header files.
 */
#include <sys/cdefs.h>
#include <sys/_pthreadtypes.h>
#include <machine/_limits.h>
#include <machine/_types.h>
#include <sys/_sigset.h>
#include <sched.h>
#include <time.h>

/*
 * Run-time invariant values:
 */
#define PTHREAD_DESTRUCTOR_ITERATIONS		4
#define PTHREAD_KEYS_MAX			256
#define PTHREAD_STACK_MIN			__MINSIGSTKSZ
#define PTHREAD_THREADS_MAX			__ULONG_MAX
#define PTHREAD_BARRIER_SERIAL_THREAD		-1

/*
 * 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)

/*
 * 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, NULL }

/*
 * Static initialization values. 
 */
#define PTHREAD_MUTEX_INITIALIZER	NULL
#define PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP	((pthread_mutex_t)1)
#define PTHREAD_COND_INITIALIZER	NULL
#define PTHREAD_RWLOCK_INITIALIZER	NULL

/*
 * Default attribute arguments (draft 4, deprecated).
 */
#ifndef PTHREAD_KERNEL
#define pthread_condattr_default    NULL
#define pthread_mutexattr_default   NULL
#define pthread_attr_default        NULL
#endif

#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_ADAPTIVE_NP	= 4,	/* Adaptive mutex, spins briefly before blocking on lock */
	PTHREAD_MUTEX_TYPE_MAX
};

#define PTHREAD_MUTEX_DEFAULT		PTHREAD_MUTEX_ERRORCHECK

struct _pthread_cleanup_info {
	__uintptr_t	pthread_cleanup_pad[8];
};

/*
 * 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 * __restrict, 
			void ** __restrict, size_t * __restrict);
int		pthread_attr_getstacksize(const pthread_attr_t *, size_t *);
int		pthread_attr_getguardsize(const pthread_attr_t *, size_t *);
int		pthread_attr_getstackaddr(const pthread_attr_t *, void **);
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_setguardsize(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_setdetachstate(pthread_attr_t *, int);
int		pthread_barrier_destroy(pthread_barrier_t *);
int		pthread_barrier_init(pthread_barrier_t *,
			const pthread_barrierattr_t *, unsigned);
int		pthread_barrier_wait(pthread_barrier_t *);
int		pthread_barrierattr_destroy(pthread_barrierattr_t *);
int		pthread_barrierattr_getpshared(const pthread_barrierattr_t *,
			int *);
int		pthread_barrierattr_init(pthread_barrierattr_t *);
int		pthread_barrierattr_setpshared(pthread_barrierattr_t *, int);

#define		pthread_cleanup_push(cleanup_routine, cleanup_arg)		\
		{								\
			struct _pthread_cleanup_info __cleanup_info__;		\
			__pthread_cleanup_push_imp(cleanup_routine, cleanup_arg,\
				&__cleanup_info__);				\
			{

#define		pthread_cleanup_pop(execute)					\
			}							\
			__pthread_cleanup_pop_imp(execute);			\
		}

int		pthread_condattr_destroy(pthread_condattr_t *);
int		pthread_condattr_getclock(const pthread_condattr_t *,
			clockid_t *);
int		pthread_condattr_getpshared(const pthread_condattr_t *, int *);
int		pthread_condattr_init(pthread_condattr_t *);
int		pthread_condattr_setclock(pthread_condattr_t *, clockid_t);
int		pthread_condattr_setpshared(pthread_condattr_t *, int);
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);
void		pthread_exit(void *) __dead2;
void		*pthread_getspecific(pthread_key_t);
int		pthread_getcpuclockid(pthread_t, clockid_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_mutexattr_init(pthread_mutexattr_t *);
int		pthread_mutexattr_destroy(pthread_mutexattr_t *);
int		pthread_mutexattr_getpshared(const pthread_mutexattr_t *,
			int *);
int		pthread_mutexattr_gettype(pthread_mutexattr_t *, int *);
int		pthread_mutexattr_settype(pthread_mutexattr_t *, int);
int		pthread_mutexattr_setpshared(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_timedlock(pthread_mutex_t *,
			const struct timespec *);
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_timedrdlock(pthread_rwlock_t *,
			const struct timespec *);
int		pthread_rwlock_timedwrlock(pthread_rwlock_t *,
			const struct timespec *);
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_destroy(pthread_rwlockattr_t *);
int		pthread_rwlockattr_getkind_np(const pthread_rwlockattr_t *,
			int *);
int		pthread_rwlockattr_getpshared(const pthread_rwlockattr_t *,
			int *);
int		pthread_rwlockattr_init(pthread_rwlockattr_t *);
int		pthread_rwlockattr_setkind_np(pthread_rwlockattr_t *, int);
int		pthread_rwlockattr_setpshared(pthread_rwlockattr_t *, int);
pthread_t	pthread_self(void);
int		pthread_setspecific(pthread_key_t, const void *);

int		pthread_spin_init(pthread_spinlock_t *, int);
int		pthread_spin_destroy(pthread_spinlock_t *);
int		pthread_spin_lock(pthread_spinlock_t *);
int		pthread_spin_trylock(pthread_spinlock_t *);
int		pthread_spin_unlock(pthread_spinlock_t *);
int		pthread_cancel(pthread_t);
int		pthread_setcancelstate(int, int *);
int		pthread_setcanceltype(int, int *);
void		pthread_testcancel(void);

#if __BSD_VISIBLE
int		pthread_getprio(pthread_t);
int		pthread_setprio(pthread_t, int);
void		pthread_yield(void);
#endif

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 *);
#if __XSI_VISIBLE
int		pthread_getconcurrency(void);
int		pthread_setconcurrency(int);
#endif

void		__pthread_cleanup_push_imp(void (*)(void *), void *,
			struct _pthread_cleanup_info *);
void		__pthread_cleanup_pop_imp(int);
__END_DECLS

#endif

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