libc/include/pthread.h - platform/bionic - Git at Google

 /*
  * Copyright (C) 2008 The Android Open Source Project
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *  * Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  *  * 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.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  * "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 THE
  * COPYRIGHT OWNER OR CONTRIBUTORS 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.
  */
 #ifndef _PTHREAD_H_
 #define _PTHREAD_H_

 #include <time.h>
 #include <signal.h>
 #include <sched.h>
 #include <limits.h>
 #include <sys/types.h>

 /*
  * Types
  */
 typedef struct
 {
     int volatile value;
 } pthread_mutex_t;

 #define  __PTHREAD_MUTEX_INIT_VALUE            0
 #define  __PTHREAD_RECURSIVE_MUTEX_INIT_VALUE  0x4000
 #define  __PTHREAD_ERRORCHECK_MUTEX_INIT_VALUE 0x8000

 #define  PTHREAD_MUTEX_INITIALIZER             {__PTHREAD_MUTEX_INIT_VALUE}
 #define  PTHREAD_RECURSIVE_MUTEX_INITIALIZER   {__PTHREAD_RECURSIVE_MUTEX_INIT_VALUE}
 #define  PTHREAD_ERRORCHECK_MUTEX_INITIALIZER  {__PTHREAD_ERRORCHECK_MUTEX_INIT_VALUE}

 enum {
     PTHREAD_MUTEX_NORMAL = 0,
     PTHREAD_MUTEX_RECURSIVE = 1,
     PTHREAD_MUTEX_ERRORCHECK = 2,

     PTHREAD_MUTEX_ERRORCHECK_NP = PTHREAD_MUTEX_ERRORCHECK,
     PTHREAD_MUTEX_RECURSIVE_NP  = PTHREAD_MUTEX_RECURSIVE,

     PTHREAD_MUTEX_DEFAULT = PTHREAD_MUTEX_NORMAL
 };


 typedef struct
 {
     int volatile value;
 } pthread_cond_t;

 typedef struct
 {
     uint32_t flags;
     void * stack_base;
     size_t stack_size;
     size_t guard_size;
     int32_t sched_policy;
     int32_t sched_priority;
 } pthread_attr_t;

 typedef long pthread_mutexattr_t;
 typedef long pthread_condattr_t;

 typedef int pthread_key_t;
 typedef long pthread_t;

 typedef volatile int  pthread_once_t;

 /*
  * Defines
  */
 #define PTHREAD_COND_INITIALIZER  {0}

 #define PTHREAD_STACK_MIN (2 * PAGE_SIZE)

 #define PTHREAD_CREATE_DETACHED  0x00000001
 #define PTHREAD_CREATE_JOINABLE  0x00000000

 #define PTHREAD_ONCE_INIT    0

 #define PTHREAD_PROCESS_PRIVATE  0
 #define PTHREAD_PROCESS_SHARED   1

 #define PTHREAD_SCOPE_SYSTEM     0
 #define PTHREAD_SCOPE_PROCESS    1

 /*
  * Prototypes
  */
 #ifdef __cplusplus
 extern "C" {
 #endif

 int pthread_attr_init(pthread_attr_t * attr);
 int pthread_attr_destroy(pthread_attr_t * attr);

 int pthread_attr_setdetachstate(pthread_attr_t * attr, int state);
 int pthread_attr_getdetachstate(pthread_attr_t const * attr, int * state);

 int pthread_attr_setschedpolicy(pthread_attr_t * attr, int policy);
 int pthread_attr_getschedpolicy(pthread_attr_t const * attr, int * policy);

 int pthread_attr_setschedparam(pthread_attr_t * attr, struct sched_param const * param);
 int pthread_attr_getschedparam(pthread_attr_t const * attr, struct sched_param * param);

 int pthread_attr_setstacksize(pthread_attr_t * attr, size_t stack_size);
 int pthread_attr_getstacksize(pthread_attr_t const * attr, size_t * stack_size);

 int pthread_attr_setstackaddr(pthread_attr_t * attr, void * stackaddr);
 int pthread_attr_getstackaddr(pthread_attr_t const * attr, void ** stackaddr);

 int pthread_attr_setstack(pthread_attr_t * attr, void * stackaddr, size_t stack_size);
 int pthread_attr_getstack(pthread_attr_t const * attr, void ** stackaddr, size_t * stack_size);

 int pthread_attr_setguardsize(pthread_attr_t * attr, size_t guard_size);
 int pthread_attr_getguardsize(pthread_attr_t const * attr, size_t * guard_size);

 int pthread_attr_setscope(pthread_attr_t *attr, int  scope);
 int pthread_attr_getscope(pthread_attr_t const *attr);

 int pthread_getattr_np(pthread_t thid, pthread_attr_t * attr);

 int pthread_create(pthread_t *thread, pthread_attr_t const * attr,
                    void *(*start_routine)(void *), void * arg);
 void pthread_exit(void * retval);
 int pthread_join(pthread_t thid, void ** ret_val);
 int pthread_detach(pthread_t  thid);

 pthread_t pthread_self(void);
 int pthread_equal(pthread_t one, pthread_t two);

 int pthread_getschedparam(pthread_t thid, int * policy,
                           struct sched_param * param);
 int pthread_setschedparam(pthread_t thid, int policy,
                           struct sched_param const * param);

 int pthread_mutexattr_init(pthread_mutexattr_t *attr);
 int pthread_mutexattr_destroy(pthread_mutexattr_t *attr);
 int pthread_mutexattr_gettype(const pthread_mutexattr_t *attr, int *type);
 int pthread_mutexattr_settype(pthread_mutexattr_t *attr, int type);
 int pthread_mutexattr_setpshared(pthread_mutexattr_t *attr, int  pshared);
 int pthread_mutexattr_getpshared(pthread_mutexattr_t *attr, int *pshared);

 int pthread_mutex_init(pthread_mutex_t *mutex,
                        const pthread_mutexattr_t *attr);
 int pthread_mutex_destroy(pthread_mutex_t *mutex);
 int pthread_mutex_lock(pthread_mutex_t *mutex);
 int pthread_mutex_unlock(pthread_mutex_t *mutex);
 int pthread_mutex_trylock(pthread_mutex_t *mutex);
 int pthread_mutex_timedlock(pthread_mutex_t *mutex, struct timespec*  ts);

 int pthread_condattr_init(pthread_condattr_t *attr);
 int pthread_condattr_getpshared(pthread_condattr_t *attr, int *pshared);
 int pthread_condattr_setpshared(pthread_condattr_t* attr, int pshared);
 int pthread_condattr_destroy(pthread_condattr_t *attr);

 int pthread_cond_init(pthread_cond_t *cond,
                       const pthread_condattr_t *attr);
 int pthread_cond_destroy(pthread_cond_t *cond);
 int pthread_cond_broadcast(pthread_cond_t *cond);
 int pthread_cond_signal(pthread_cond_t *cond);
 int pthread_cond_wait(pthread_cond_t *cond, pthread_mutex_t *mutex);
 int pthread_cond_timedwait(pthread_cond_t *cond,
                            pthread_mutex_t * mutex,
                            const struct timespec *abstime);

 /* BIONIC: same as pthread_cond_timedwait, except the 'abstime' given refers
  *         to the CLOCK_MONOTONIC clock instead, to avoid any problems when
  *         the wall-clock time is changed brutally
  */
 int pthread_cond_timedwait_monotonic_np(pthread_cond_t         *cond,
                                         pthread_mutex_t        *mutex,
                                         const struct timespec  *abstime);

 /* BIONIC: DEPRECATED. same as pthread_cond_timedwait_monotonic_np()
  * unfortunately pthread_cond_timedwait_monotonic has shipped already
  */
 int pthread_cond_timedwait_monotonic(pthread_cond_t         *cond,
                                      pthread_mutex_t        *mutex,
                                      const struct timespec  *abstime);

 #define HAVE_PTHREAD_COND_TIMEDWAIT_MONOTONIC 1

 /* BIONIC: same as pthread_cond_timedwait, except the 'reltime' given refers
  *         is relative to the current time.
  */
 int pthread_cond_timedwait_relative_np(pthread_cond_t         *cond,
                                      pthread_mutex_t        *mutex,
                                      const struct timespec  *reltime);

 #define HAVE_PTHREAD_COND_TIMEDWAIT_RELATIVE 1


 int pthread_cond_timeout_np(pthread_cond_t *cond,
                             pthread_mutex_t * mutex,
                             unsigned msecs);

 /* same as pthread_mutex_lock(), but will wait up to 'msecs' milli-seconds
  * before returning. same return values than pthread_mutex_trylock though, i.e.
  * returns EBUSY if the lock could not be acquired after the timeout
  * expired.
  */
 int pthread_mutex_lock_timeout_np(pthread_mutex_t *mutex, unsigned msecs);

 /* read-write lock support */

 typedef int pthread_rwlockattr_t;

 typedef struct {
     pthread_mutex_t  lock;
     pthread_cond_t   cond;
     int              numLocks;
     int              writerThreadId;
     int              pendingReaders;
     int              pendingWriters;
     void*            reserved[4];  /* for future extensibility */
 } pthread_rwlock_t;

 #define PTHREAD_RWLOCK_INITIALIZER  { PTHREAD_MUTEX_INITIALIZER, PTHREAD_COND_INITIALIZER, 0, 0, 0, 0, { NULL, NULL, NULL, NULL } }

 int pthread_rwlockattr_init(pthread_rwlockattr_t *attr);
 int pthread_rwlockattr_destroy(pthread_rwlockattr_t *attr);
 int pthread_rwlockattr_setpshared(pthread_rwlockattr_t *attr, int  pshared);
 int pthread_rwlockattr_getpshared(pthread_rwlockattr_t *attr, int *pshared);

 int pthread_rwlock_init(pthread_rwlock_t *rwlock, const pthread_rwlockattr_t *attr);
 int pthread_rwlock_destroy(pthread_rwlock_t *rwlock);

 int pthread_rwlock_rdlock(pthread_rwlock_t *rwlock);
 int pthread_rwlock_tryrdlock(pthread_rwlock_t *rwlock);
 int pthread_rwlock_timedrdlock(pthread_rwlock_t *rwlock, const struct timespec *abs_timeout);

 int pthread_rwlock_wrlock(pthread_rwlock_t *rwlock);
 int pthread_rwlock_trywrlock(pthread_rwlock_t *rwlock);
 int pthread_rwlock_timedwrlock(pthread_rwlock_t *rwlock, const struct timespec *abs_timeout);

 int pthread_rwlock_unlock(pthread_rwlock_t *rwlock);


 int pthread_key_create(pthread_key_t *key, void (*destructor_function)(void *));
 int pthread_key_delete (pthread_key_t);
 int pthread_setspecific(pthread_key_t key, const void *value);
 void *pthread_getspecific(pthread_key_t key);

 int pthread_kill(pthread_t tid, int sig);
 int pthread_sigmask(int how, const sigset_t *set, sigset_t *oset);

 int pthread_getcpuclockid(pthread_t  tid, clockid_t  *clockid);

 int pthread_once(pthread_once_t  *once_control, void (*init_routine)(void));

 int pthread_setname_np(pthread_t thid, const char *thname);

 int pthread_atfork(void (*prepare)(void), void (*parent)(void), void(*child)(void));

 typedef void  (*__pthread_cleanup_func_t)(void*);

 typedef struct __pthread_cleanup_t {
     struct __pthread_cleanup_t*   __cleanup_prev;
     __pthread_cleanup_func_t      __cleanup_routine;
     void*                         __cleanup_arg;
 } __pthread_cleanup_t;

 extern void  __pthread_cleanup_push(__pthread_cleanup_t*      c,
                                     __pthread_cleanup_func_t  routine,
                                     void*                     arg);

 extern void  __pthread_cleanup_pop(__pthread_cleanup_t*  c,
                                    int                   execute);

 /* Believe or not, the definitions of pthread_cleanup_push and
  * pthread_cleanup_pop below are correct. Posix states that these
  * can be implemented as macros that might introduce opening and
  * closing braces, and that using setjmp/longjmp/return/break/continue
  * between them results in undefined behaviour.
  *
  * And indeed, GLibc and other C libraries use a similar definition
  */
 #define  pthread_cleanup_push(routine, arg)                      \
     do {                                                         \
         __pthread_cleanup_t  __cleanup;                          \
         __pthread_cleanup_push( &__cleanup, (routine), (arg) );  \

 #define  pthread_cleanup_pop(execute)                  \
         __pthread_cleanup_pop( &__cleanup, (execute)); \
     } while (0);

 #ifdef __cplusplus
 } /* extern "C" */
 #endif

 #endif /* _PTHREAD_H_ */
	/*
	* Copyright (C) 2008 The Android Open Source Project
	* All rights reserved.
	*
	* Redistribution and use in source and binary forms, with or without
	* modification, are permitted provided that the following conditions
	* are met:
	* * Redistributions of source code must retain the above copyright
	* notice, this list of conditions and the following disclaimer.
	* * 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.
	*
	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
	* "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 THE
	* COPYRIGHT OWNER OR CONTRIBUTORS 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.
	*/
	#ifndef _PTHREAD_H_
	#define _PTHREAD_H_

	#include <time.h>
	#include <signal.h>
	#include <sched.h>
	#include <limits.h>
	#include <sys/types.h>

	/*
	* Types
	*/
	typedef struct
	{
	int volatile value;
	} pthread_mutex_t;

	#define __PTHREAD_MUTEX_INIT_VALUE 0
	#define __PTHREAD_RECURSIVE_MUTEX_INIT_VALUE 0x4000
	#define __PTHREAD_ERRORCHECK_MUTEX_INIT_VALUE 0x8000

	#define PTHREAD_MUTEX_INITIALIZER {__PTHREAD_MUTEX_INIT_VALUE}
	#define PTHREAD_RECURSIVE_MUTEX_INITIALIZER {__PTHREAD_RECURSIVE_MUTEX_INIT_VALUE}
	#define PTHREAD_ERRORCHECK_MUTEX_INITIALIZER {__PTHREAD_ERRORCHECK_MUTEX_INIT_VALUE}

	enum {
	PTHREAD_MUTEX_NORMAL = 0,
	PTHREAD_MUTEX_RECURSIVE = 1,
	PTHREAD_MUTEX_ERRORCHECK = 2,

	PTHREAD_MUTEX_ERRORCHECK_NP = PTHREAD_MUTEX_ERRORCHECK,
	PTHREAD_MUTEX_RECURSIVE_NP = PTHREAD_MUTEX_RECURSIVE,

	PTHREAD_MUTEX_DEFAULT = PTHREAD_MUTEX_NORMAL
	};



	typedef struct
	{
	int volatile value;
	} pthread_cond_t;

	typedef struct
	{
	uint32_t flags;
	void * stack_base;
	size_t stack_size;
	size_t guard_size;
	int32_t sched_policy;
	int32_t sched_priority;
	} pthread_attr_t;

	typedef long pthread_mutexattr_t;
	typedef long pthread_condattr_t;

	typedef int pthread_key_t;
	typedef long pthread_t;

	typedef volatile int pthread_once_t;

	/*
	* Defines
	*/
	#define PTHREAD_COND_INITIALIZER {0}

	#define PTHREAD_STACK_MIN (2 * PAGE_SIZE)

	#define PTHREAD_CREATE_DETACHED 0x00000001
	#define PTHREAD_CREATE_JOINABLE 0x00000000

	#define PTHREAD_ONCE_INIT 0

	#define PTHREAD_PROCESS_PRIVATE 0
	#define PTHREAD_PROCESS_SHARED 1

	#define PTHREAD_SCOPE_SYSTEM 0
	#define PTHREAD_SCOPE_PROCESS 1

	/*
	* Prototypes
	*/
	#ifdef __cplusplus
	extern "C" {
	#endif

	int pthread_attr_init(pthread_attr_t * attr);
	int pthread_attr_destroy(pthread_attr_t * attr);

	int pthread_attr_setdetachstate(pthread_attr_t * attr, int state);
	int pthread_attr_getdetachstate(pthread_attr_t const * attr, int * state);

	int pthread_attr_setschedpolicy(pthread_attr_t * attr, int policy);
	int pthread_attr_getschedpolicy(pthread_attr_t const * attr, int * policy);

	int pthread_attr_setschedparam(pthread_attr_t * attr, struct sched_param const * param);
	int pthread_attr_getschedparam(pthread_attr_t const * attr, struct sched_param * param);

	int pthread_attr_setstacksize(pthread_attr_t * attr, size_t stack_size);
	int pthread_attr_getstacksize(pthread_attr_t const * attr, size_t * stack_size);

	int pthread_attr_setstackaddr(pthread_attr_t * attr, void * stackaddr);
	int pthread_attr_getstackaddr(pthread_attr_t const * attr, void ** stackaddr);

	int pthread_attr_setstack(pthread_attr_t * attr, void * stackaddr, size_t stack_size);
	int pthread_attr_getstack(pthread_attr_t const * attr, void ** stackaddr, size_t * stack_size);

	int pthread_attr_setguardsize(pthread_attr_t * attr, size_t guard_size);
	int pthread_attr_getguardsize(pthread_attr_t const * attr, size_t * guard_size);

	int pthread_attr_setscope(pthread_attr_t *attr, int scope);
	int pthread_attr_getscope(pthread_attr_t const *attr);

	int pthread_getattr_np(pthread_t thid, pthread_attr_t * attr);

	int pthread_create(pthread_t thread, pthread_attr_t const attr,
	void (start_routine)(void ), void arg);
	void pthread_exit(void * retval);
	int pthread_join(pthread_t thid, void ** ret_val);
	int pthread_detach(pthread_t thid);

	pthread_t pthread_self(void);
	int pthread_equal(pthread_t one, pthread_t two);

	int pthread_getschedparam(pthread_t thid, int * policy,
	struct sched_param * param);
	int pthread_setschedparam(pthread_t thid, int policy,
	struct sched_param const * param);

	int pthread_mutexattr_init(pthread_mutexattr_t *attr);
	int pthread_mutexattr_destroy(pthread_mutexattr_t *attr);
	int pthread_mutexattr_gettype(const pthread_mutexattr_t attr, int type);
	int pthread_mutexattr_settype(pthread_mutexattr_t *attr, int type);
	int pthread_mutexattr_setpshared(pthread_mutexattr_t *attr, int pshared);
	int pthread_mutexattr_getpshared(pthread_mutexattr_t attr, int pshared);

	int pthread_mutex_init(pthread_mutex_t *mutex,
	const pthread_mutexattr_t *attr);
	int pthread_mutex_destroy(pthread_mutex_t *mutex);
	int pthread_mutex_lock(pthread_mutex_t *mutex);
	int pthread_mutex_unlock(pthread_mutex_t *mutex);
	int pthread_mutex_trylock(pthread_mutex_t *mutex);
	int pthread_mutex_timedlock(pthread_mutex_t mutex, struct timespec ts);

	int pthread_condattr_init(pthread_condattr_t *attr);
	int pthread_condattr_getpshared(pthread_condattr_t attr, int pshared);
	int pthread_condattr_setpshared(pthread_condattr_t* attr, int pshared);
	int pthread_condattr_destroy(pthread_condattr_t *attr);

	int pthread_cond_init(pthread_cond_t *cond,
	const pthread_condattr_t *attr);
	int pthread_cond_destroy(pthread_cond_t *cond);
	int pthread_cond_broadcast(pthread_cond_t *cond);
	int pthread_cond_signal(pthread_cond_t *cond);
	int pthread_cond_wait(pthread_cond_t cond, pthread_mutex_t mutex);
	int pthread_cond_timedwait(pthread_cond_t *cond,
	pthread_mutex_t * mutex,
	const struct timespec *abstime);

	/* BIONIC: same as pthread_cond_timedwait, except the 'abstime' given refers
	* to the CLOCK_MONOTONIC clock instead, to avoid any problems when
	* the wall-clock time is changed brutally
	*/
	int pthread_cond_timedwait_monotonic_np(pthread_cond_t *cond,
	pthread_mutex_t *mutex,
	const struct timespec *abstime);

	/* BIONIC: DEPRECATED. same as pthread_cond_timedwait_monotonic_np()
	* unfortunately pthread_cond_timedwait_monotonic has shipped already
	*/
	int pthread_cond_timedwait_monotonic(pthread_cond_t *cond,
	pthread_mutex_t *mutex,
	const struct timespec *abstime);

	#define HAVE_PTHREAD_COND_TIMEDWAIT_MONOTONIC 1

	/* BIONIC: same as pthread_cond_timedwait, except the 'reltime' given refers
	* is relative to the current time.
	*/
	int pthread_cond_timedwait_relative_np(pthread_cond_t *cond,
	pthread_mutex_t *mutex,
	const struct timespec *reltime);

	#define HAVE_PTHREAD_COND_TIMEDWAIT_RELATIVE 1



	int pthread_cond_timeout_np(pthread_cond_t *cond,
	pthread_mutex_t * mutex,
	unsigned msecs);

	/* same as pthread_mutex_lock(), but will wait up to 'msecs' milli-seconds
	* before returning. same return values than pthread_mutex_trylock though, i.e.
	* returns EBUSY if the lock could not be acquired after the timeout
	* expired.
	*/
	int pthread_mutex_lock_timeout_np(pthread_mutex_t *mutex, unsigned msecs);

	/* read-write lock support */

	typedef int pthread_rwlockattr_t;

	typedef struct {
	pthread_mutex_t lock;
	pthread_cond_t cond;
	int numLocks;
	int writerThreadId;
	int pendingReaders;
	int pendingWriters;
	void* reserved[4]; /* for future extensibility */
	} pthread_rwlock_t;

	#define PTHREAD_RWLOCK_INITIALIZER { PTHREAD_MUTEX_INITIALIZER, PTHREAD_COND_INITIALIZER, 0, 0, 0, 0, { NULL, NULL, NULL, NULL } }

	int pthread_rwlockattr_init(pthread_rwlockattr_t *attr);
	int pthread_rwlockattr_destroy(pthread_rwlockattr_t *attr);
	int pthread_rwlockattr_setpshared(pthread_rwlockattr_t *attr, int pshared);
	int pthread_rwlockattr_getpshared(pthread_rwlockattr_t attr, int pshared);

	int pthread_rwlock_init(pthread_rwlock_t rwlock, const pthread_rwlockattr_t attr);
	int pthread_rwlock_destroy(pthread_rwlock_t *rwlock);

	int pthread_rwlock_rdlock(pthread_rwlock_t *rwlock);
	int pthread_rwlock_tryrdlock(pthread_rwlock_t *rwlock);
	int pthread_rwlock_timedrdlock(pthread_rwlock_t rwlock, const struct timespec abs_timeout);

	int pthread_rwlock_wrlock(pthread_rwlock_t *rwlock);
	int pthread_rwlock_trywrlock(pthread_rwlock_t *rwlock);
	int pthread_rwlock_timedwrlock(pthread_rwlock_t rwlock, const struct timespec abs_timeout);

	int pthread_rwlock_unlock(pthread_rwlock_t *rwlock);


	int pthread_key_create(pthread_key_t key, void (destructor_function)(void *));
	int pthread_key_delete (pthread_key_t);
	int pthread_setspecific(pthread_key_t key, const void *value);
	void *pthread_getspecific(pthread_key_t key);

	int pthread_kill(pthread_t tid, int sig);
	int pthread_sigmask(int how, const sigset_t set, sigset_t oset);

	int pthread_getcpuclockid(pthread_t tid, clockid_t *clockid);

	int pthread_once(pthread_once_t once_control, void (init_routine)(void));

	int pthread_setname_np(pthread_t thid, const char *thname);

	int pthread_atfork(void (prepare)(void), void (parent)(void), void(*child)(void));

	typedef void (__pthread_cleanup_func_t)(void);

	typedef struct __pthread_cleanup_t {
	struct __pthread_cleanup_t* __cleanup_prev;
	__pthread_cleanup_func_t __cleanup_routine;
	void* __cleanup_arg;
	} __pthread_cleanup_t;

	extern void __pthread_cleanup_push(__pthread_cleanup_t* c,
	__pthread_cleanup_func_t routine,
	void* arg);

	extern void __pthread_cleanup_pop(__pthread_cleanup_t* c,
	int execute);

	/* Believe or not, the definitions of pthread_cleanup_push and
	* pthread_cleanup_pop below are correct. Posix states that these
	* can be implemented as macros that might introduce opening and
	* closing braces, and that using setjmp/longjmp/return/break/continue
	* between them results in undefined behaviour.
	*
	* And indeed, GLibc and other C libraries use a similar definition
	*/
	#define pthread_cleanup_push(routine, arg) \
	do { \
	__pthread_cleanup_t __cleanup; \
	__pthread_cleanup_push( &__cleanup, (routine), (arg) ); \

	#define pthread_cleanup_pop(execute) \
	__pthread_cleanup_pop( &__cleanup, (execute)); \
	} while (0);

	#ifdef __cplusplus
	} /* extern "C" */
	#endif

	#endif /* _PTHREAD_H_ */