pthread.h File Reference

#include <stdlib.h>
#include <string.h>
#include <zephyr/kernel.h>
#include <zephyr/posix/time.h>
#include <zephyr/posix/unistd.h>
#include <zephyr/posix/sched.h>

Go to the source code of this file.

Macros
#define	PTHREAD_CREATE_DETACHED   1
#define	PTHREAD_CREATE_JOINABLE   0
#define	PTHREAD_PROCESS_PRIVATE   0
#define	PTHREAD_PROCESS_SHARED   1
#define	PTHREAD_CANCELED   ((void *)-1)
#define	PTHREAD_CANCEL_ENABLE   0
#define	PTHREAD_CANCEL_DISABLE   1
#define	PTHREAD_CANCEL_DEFERRED   0
#define	PTHREAD_CANCEL_ASYNCHRONOUS   1
#define	PTHREAD_SCOPE_PROCESS   1
#define	PTHREAD_SCOPE_SYSTEM   0
#define	PTHREAD_INHERIT_SCHED   0
#define	PTHREAD_EXPLICIT_SCHED   1
#define	PTHREAD_ONCE_INIT   {0}
#define	PTHREAD_STACK_MIN   K_KERNEL_STACK_LEN(0)
#define	PTHREAD_COND_INITIALIZER   (-1)
	Declare a condition variable as initialized.
#define	PTHREAD_MUTEX_INITIALIZER   (-1)
	Declare a mutex as initialized.
#define	PTHREAD_RWLOCK_INITIALIZER   (-1)
	Declare a rwlock as initialized.
#define	PTHREAD_MUTEX_NORMAL   0
#define	PTHREAD_MUTEX_RECURSIVE   1
#define	PTHREAD_MUTEX_ERRORCHECK   2
#define	PTHREAD_MUTEX_DEFAULT   PTHREAD_MUTEX_NORMAL
#define	PTHREAD_PRIO_NONE   0
#define	PTHREAD_BARRIER_SERIAL_THREAD   1
#define	PTHREAD_PROCESS_PRIVATE   0
#define	PTHREAD_PROCESS_PUBLIC   1
#define	pthread_cleanup_push(_rtn, _arg)
#define	pthread_cleanup_pop(_ex)

Functions
int	pthread_cond_init (pthread_cond_t *cv, const pthread_condattr_t *att)
	POSIX threading compatibility API.
int	pthread_cond_destroy (pthread_cond_t *cv)
	POSIX threading compatibility API.
int	pthread_cond_signal (pthread_cond_t *cv)
	POSIX threading compatibility API.
int	pthread_cond_broadcast (pthread_cond_t *cv)
	POSIX threading compatibility API.
int	pthread_cond_wait (pthread_cond_t *cv, pthread_mutex_t *mut)
	POSIX threading compatibility API.
int	pthread_cond_timedwait (pthread_cond_t *cv, pthread_mutex_t *mut, const struct timespec *abstime)
	POSIX threading compatibility API.
int	pthread_condattr_init (pthread_condattr_t *att)
	POSIX threading compatibility API.
int	pthread_condattr_destroy (pthread_condattr_t *att)
	POSIX threading compatibility API.
int	pthread_condattr_getclock (const pthread_condattr_t *ZRESTRICT att, clockid_t *ZRESTRICT clock_id)
	POSIX threading comatibility API.
int	pthread_condattr_setclock (pthread_condattr_t *att, clockid_t clock_id)
	POSIX threading compatibility API.
int	pthread_mutex_destroy (pthread_mutex_t *m)
	POSIX threading compatibility API.
int	pthread_mutex_lock (pthread_mutex_t *m)
	POSIX threading compatibility API.
int	pthread_mutex_unlock (pthread_mutex_t *m)
	POSIX threading compatibility API.
int	pthread_mutex_timedlock (pthread_mutex_t *m, const struct timespec *abstime)
	POSIX threading compatibility API.
int	pthread_mutex_trylock (pthread_mutex_t *m)
	POSIX threading compatibility API.
int	pthread_mutex_init (pthread_mutex_t *m, const pthread_mutexattr_t *att)
	POSIX threading compatibility API.
int	pthread_mutexattr_setprotocol (pthread_mutexattr_t *attr, int protocol)
	POSIX threading compatibility API.
int	pthread_mutexattr_settype (pthread_mutexattr_t *attr, int type)
	POSIX threading compatibility API.
int	pthread_mutexattr_getprotocol (const pthread_mutexattr_t *attr, int *protocol)
	POSIX threading compatibility API.
int	pthread_mutexattr_gettype (const pthread_mutexattr_t *attr, int *type)
	POSIX threading compatibility API.
int	pthread_mutexattr_init (pthread_mutexattr_t *attr)
	POSIX threading compatibility API.
int	pthread_mutexattr_destroy (pthread_mutexattr_t *attr)
	POSIX threading compatibility API.
int	pthread_barrier_wait (pthread_barrier_t *b)
	POSIX threading compatibility API.
int	pthread_barrier_init (pthread_barrier_t *b, const pthread_barrierattr_t *attr, unsigned int count)
	POSIX threading compatibility API.
int	pthread_barrier_destroy (pthread_barrier_t *b)
	POSIX threading compatibility API.
int	pthread_barrierattr_init (pthread_barrierattr_t *b)
	POSIX threading compatibility API.
int	pthread_barrierattr_destroy (pthread_barrierattr_t *b)
	POSIX threading compatibility API.
int	pthread_barrierattr_setpshared (pthread_barrierattr_t *attr, int pshared)
	POSIX threading compatibility API.
int	pthread_barrierattr_getpshared (const pthread_barrierattr_t *ZRESTRICT attr, int *ZRESTRICT pshared)
	POSIX threading compatibility API.
pthread_t	pthread_self (void)
	Obtain ID of the calling thread.
int	pthread_equal (pthread_t pt1, pthread_t pt2)
	Compare thread IDs.
int	pthread_rwlockattr_destroy (pthread_rwlockattr_t *attr)
	Destroy the read-write lock attributes object.
int	pthread_rwlockattr_init (pthread_rwlockattr_t *attr)
	initialize the read-write lock attributes object.
int	pthread_rwlockattr_getpshared (const pthread_rwlockattr_t *ZRESTRICT attr, int *ZRESTRICT pshared)
int	pthread_rwlockattr_setpshared (pthread_rwlockattr_t *attr, int pshared)
int	pthread_attr_getguardsize (const pthread_attr_t *ZRESTRICT attr, size_t *ZRESTRICT guardsize)
int	pthread_attr_getstacksize (const pthread_attr_t *attr, size_t *stacksize)
int	pthread_attr_setguardsize (pthread_attr_t *attr, size_t guardsize)
int	pthread_attr_setstacksize (pthread_attr_t *attr, size_t stacksize)
int	pthread_attr_setschedpolicy (pthread_attr_t *attr, int policy)
int	pthread_attr_getschedpolicy (const pthread_attr_t *attr, int *policy)
int	pthread_attr_setdetachstate (pthread_attr_t *attr, int detachstate)
int	pthread_attr_getdetachstate (const pthread_attr_t *attr, int *detachstate)
int	pthread_attr_init (pthread_attr_t *attr)
int	pthread_attr_destroy (pthread_attr_t *attr)
int	pthread_attr_getschedparam (const pthread_attr_t *attr, struct sched_param *schedparam)
int	pthread_getschedparam (pthread_t pthread, int *policy, struct sched_param *param)
int	pthread_attr_getstack (const pthread_attr_t *attr, void **stackaddr, size_t *stacksize)
int	pthread_attr_setstack (pthread_attr_t *attr, void *stackaddr, size_t stacksize)
int	pthread_attr_getscope (const pthread_attr_t *attr, int *contentionscope)
int	pthread_attr_setscope (pthread_attr_t *attr, int contentionscope)
int	pthread_attr_getinheritsched (const pthread_attr_t *attr, int *inheritsched)
int	pthread_attr_setinheritsched (pthread_attr_t *attr, int inheritsched)
FUNC_NORETURN void	pthread_exit (void *retval)
int	pthread_join (pthread_t thread, void **status)
int	pthread_cancel (pthread_t pthread)
int	pthread_detach (pthread_t thread)
int	pthread_create (pthread_t *newthread, const pthread_attr_t *attr, void *(*threadroutine)(void *), void *arg)
int	pthread_setcancelstate (int state, int *oldstate)
int	pthread_setcanceltype (int type, int *oldtype)
void	pthread_testcancel (void)
int	pthread_attr_setschedparam (pthread_attr_t *attr, const struct sched_param *schedparam)
int	pthread_setschedparam (pthread_t pthread, int policy, const struct sched_param *param)
int	pthread_setschedprio (pthread_t thread, int prio)
int	pthread_rwlock_destroy (pthread_rwlock_t *rwlock)
int	pthread_rwlock_init (pthread_rwlock_t *rwlock, const pthread_rwlockattr_t *attr)
int	pthread_rwlock_rdlock (pthread_rwlock_t *rwlock)
int	pthread_rwlock_timedrdlock (pthread_rwlock_t *rwlock, const struct timespec *abstime)
int	pthread_rwlock_timedwrlock (pthread_rwlock_t *rwlock, const struct timespec *abstime)
int	pthread_rwlock_tryrdlock (pthread_rwlock_t *rwlock)
int	pthread_rwlock_trywrlock (pthread_rwlock_t *rwlock)
int	pthread_rwlock_unlock (pthread_rwlock_t *rwlock)
int	pthread_rwlock_wrlock (pthread_rwlock_t *rwlock)
int	pthread_key_create (pthread_key_t *key, void(*destructor)(void *))
int	pthread_key_delete (pthread_key_t key)
int	pthread_setspecific (pthread_key_t key, const void *value)
void *	pthread_getspecific (pthread_key_t key)
int	pthread_atfork (void(*prepare)(void), void(*parent)(void), void(*child)(void))
int	pthread_getconcurrency (void)
int	pthread_setconcurrency (int new_level)
int	pthread_setname_np (pthread_t thread, const char *name)
	Set name of POSIX thread.
int	pthread_getname_np (pthread_t thread, char *name, size_t len)
	Get name of POSIX thread and store in name buffer that is of size len.

Macro Definition Documentation

PTHREAD_BARRIER_SERIAL_THREAD

#define PTHREAD_BARRIER_SERIAL_THREAD   1

PTHREAD_CANCEL_ASYNCHRONOUS

#define PTHREAD_CANCEL_ASYNCHRONOUS   1

PTHREAD_CANCEL_DEFERRED

#define PTHREAD_CANCEL_DEFERRED   0

PTHREAD_CANCEL_DISABLE

#define PTHREAD_CANCEL_DISABLE   1

PTHREAD_CANCEL_ENABLE

#define PTHREAD_CANCEL_ENABLE   0

PTHREAD_CANCELED

#define PTHREAD_CANCELED   ((void *)-1)

pthread_cleanup_pop

#define pthread_cleanup_pop

(

_ex

)

Value:

                __z_pthread_cleanup_pop(_ex);                                                      \
        } /* enforce '}'-like behaviour */ while (0)

pthread_cleanup_push

#define pthread_cleanup_push	(		_rtn,
			_arg
	)

Value:

        do /* enforce '{'-like behaviour */ {                                                      \
                void *_z_pthread_cleanup[3];                                                       \
                __z_pthread_cleanup_push(_z_pthread_cleanup, _rtn, _arg)

PTHREAD_COND_INITIALIZER

#define PTHREAD_COND_INITIALIZER   (-1)

Declare a condition variable as initialized.

Initialize a condition variable with the default condition variable attributes.

PTHREAD_CREATE_DETACHED

#define PTHREAD_CREATE_DETACHED   1

PTHREAD_CREATE_JOINABLE

#define PTHREAD_CREATE_JOINABLE   0

PTHREAD_EXPLICIT_SCHED

#define PTHREAD_EXPLICIT_SCHED   1

PTHREAD_INHERIT_SCHED

#define PTHREAD_INHERIT_SCHED   0

PTHREAD_MUTEX_DEFAULT

#define PTHREAD_MUTEX_DEFAULT   PTHREAD_MUTEX_NORMAL

PTHREAD_MUTEX_ERRORCHECK

#define PTHREAD_MUTEX_ERRORCHECK   2

PTHREAD_MUTEX_INITIALIZER

#define PTHREAD_MUTEX_INITIALIZER   (-1)

Declare a mutex as initialized.

Initialize a mutex with the default mutex attributes.

PTHREAD_MUTEX_NORMAL

#define PTHREAD_MUTEX_NORMAL   0

PTHREAD_MUTEX_RECURSIVE

#define PTHREAD_MUTEX_RECURSIVE   1

PTHREAD_ONCE_INIT

#define PTHREAD_ONCE_INIT   {0}

PTHREAD_PRIO_NONE

#define PTHREAD_PRIO_NONE   0

PTHREAD_PROCESS_PRIVATE [1/2]

#define PTHREAD_PROCESS_PRIVATE   0

PTHREAD_PROCESS_PRIVATE [2/2]

#define PTHREAD_PROCESS_PRIVATE   0

PTHREAD_PROCESS_PUBLIC

#define PTHREAD_PROCESS_PUBLIC   1

PTHREAD_PROCESS_SHARED

#define PTHREAD_PROCESS_SHARED   1

PTHREAD_RWLOCK_INITIALIZER

#define PTHREAD_RWLOCK_INITIALIZER   (-1)

Declare a rwlock as initialized.

Initialize a rwlock with the default rwlock attributes.

PTHREAD_SCOPE_PROCESS

#define PTHREAD_SCOPE_PROCESS   1

PTHREAD_SCOPE_SYSTEM

#define PTHREAD_SCOPE_SYSTEM   0

PTHREAD_STACK_MIN

#define PTHREAD_STACK_MIN   K_KERNEL_STACK_LEN(0)

Function Documentation

pthread_atfork()

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

pthread_attr_destroy()

int pthread_attr_destroy

(

pthread_attr_t *

attr

)

pthread_attr_getdetachstate()

int pthread_attr_getdetachstate	(	const pthread_attr_t *	attr,
		int *	detachstate
	)

pthread_attr_getguardsize()

int pthread_attr_getguardsize	(	const pthread_attr_t *ZRESTRICT	attr,
		size_t *ZRESTRICT	guardsize
	)

pthread_attr_getinheritsched()

int pthread_attr_getinheritsched	(	const pthread_attr_t *	attr,
		int *	inheritsched
	)

pthread_attr_getschedparam()

int pthread_attr_getschedparam	(	const pthread_attr_t *	attr,
		struct sched_param *	schedparam
	)

pthread_attr_getschedpolicy()

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

pthread_attr_getscope()

int pthread_attr_getscope	(	const pthread_attr_t *	attr,
		int *	contentionscope
	)

pthread_attr_getstack()

int pthread_attr_getstack	(	const pthread_attr_t *	attr,
		void **	stackaddr,
		size_t *	stacksize
	)

pthread_attr_getstacksize()

int pthread_attr_getstacksize	(	const pthread_attr_t *	attr,
		size_t *	stacksize
	)

pthread_attr_init()

int pthread_attr_init

(

pthread_attr_t *

attr

)

pthread_attr_setdetachstate()

int pthread_attr_setdetachstate	(	pthread_attr_t *	attr,
		int	detachstate
	)

pthread_attr_setguardsize()

int pthread_attr_setguardsize	(	pthread_attr_t *	attr,
		size_t	guardsize
	)

pthread_attr_setinheritsched()

int pthread_attr_setinheritsched	(	pthread_attr_t *	attr,
		int	inheritsched
	)

pthread_attr_setschedparam()

int pthread_attr_setschedparam	(	pthread_attr_t *	attr,
		const struct sched_param *	schedparam
	)

pthread_attr_setschedpolicy()

int pthread_attr_setschedpolicy	(	pthread_attr_t *	attr,
		int	policy
	)

pthread_attr_setscope()

int pthread_attr_setscope	(	pthread_attr_t *	attr,
		int	contentionscope
	)

pthread_attr_setstack()

int pthread_attr_setstack	(	pthread_attr_t *	attr,
		void *	stackaddr,
		size_t	stacksize
	)

pthread_attr_setstacksize()

int pthread_attr_setstacksize	(	pthread_attr_t *	attr,
		size_t	stacksize
	)

pthread_barrier_destroy()

int pthread_barrier_destroy

(

pthread_barrier_t *

b

)

POSIX threading compatibility API.

See IEEE 1003.1

pthread_barrier_init()

int pthread_barrier_init	(	pthread_barrier_t *	b,
		const pthread_barrierattr_t *	attr,
		unsigned int	count
	)

POSIX threading compatibility API.

See IEEE 1003.1

pthread_barrier_wait()

int pthread_barrier_wait

(

pthread_barrier_t *

b

)

POSIX threading compatibility API.

See IEEE 1003.1

pthread_barrierattr_destroy()

int pthread_barrierattr_destroy

(

pthread_barrierattr_t *

b

)

POSIX threading compatibility API.

See IEEE 1003.1

pthread_barrierattr_getpshared()

int pthread_barrierattr_getpshared	(	const pthread_barrierattr_t *ZRESTRICT	attr,
		int *ZRESTRICT	pshared
	)

POSIX threading compatibility API.

See IEEE 1003.1

pthread_barrierattr_init()

int pthread_barrierattr_init

(

pthread_barrierattr_t *

b

)

POSIX threading compatibility API.

See IEEE 1003.1

pthread_barrierattr_setpshared()

int pthread_barrierattr_setpshared	(	pthread_barrierattr_t *	attr,
		int	pshared
	)

POSIX threading compatibility API.

See IEEE 1003.1

pthread_cancel()

int pthread_cancel

(

pthread_t

pthread

)

pthread_cond_broadcast()

int pthread_cond_broadcast

(

pthread_cond_t *

cv

)

POSIX threading compatibility API.

See IEEE 1003.1

pthread_cond_destroy()

int pthread_cond_destroy

(

pthread_cond_t *

cv

)

POSIX threading compatibility API.

See IEEE 1003.1

pthread_cond_init()

int pthread_cond_init	(	pthread_cond_t *	cv,
		const pthread_condattr_t *	att
	)

POSIX threading compatibility API.

See IEEE 1003.1

pthread_cond_signal()

int pthread_cond_signal

(

pthread_cond_t *

cv

)

POSIX threading compatibility API.

See IEEE 1003.1

pthread_cond_timedwait()

int pthread_cond_timedwait	(	pthread_cond_t *	cv,
		pthread_mutex_t *	mut,
		const struct timespec *	abstime
	)

POSIX threading compatibility API.

See IEEE 1003.1

pthread_cond_wait()

int pthread_cond_wait	(	pthread_cond_t *	cv,
		pthread_mutex_t *	mut
	)

POSIX threading compatibility API.

See IEEE 1003.1

pthread_condattr_destroy()

int pthread_condattr_destroy

(

pthread_condattr_t *

att

)

POSIX threading compatibility API.

See IEEE 1003.1

pthread_condattr_getclock()

int pthread_condattr_getclock	(	const pthread_condattr_t *ZRESTRICT	att,
		clockid_t *ZRESTRICT	clock_id
	)

POSIX threading comatibility API.

See IEEE 1003.1

pthread_condattr_init()

int pthread_condattr_init

(

pthread_condattr_t *

att

)

POSIX threading compatibility API.

See IEEE 1003.1.

pthread_condattr_setclock()

int pthread_condattr_setclock	(	pthread_condattr_t *	att,
		clockid_t	clock_id
	)

POSIX threading compatibility API.

See IEEE 1003.1

pthread_create()

int pthread_create	(	pthread_t *	newthread,
		const pthread_attr_t *	attr,
		void *(*)(void *)	threadroutine,
		void *	arg
	)

pthread_detach()

int pthread_detach

(

pthread_t

thread

)

pthread_equal()

int pthread_equal	(	pthread_t	pt1,
		pthread_t	pt2
	)

Compare thread IDs.

See IEEE 1003.1

pthread_exit()

FUNC_NORETURN void pthread_exit

(

void *

retval

)

pthread_getconcurrency()

int pthread_getconcurrency

(

void

)

pthread_getname_np()

int pthread_getname_np	(	pthread_t	thread,
		char *	name,
		size_t	len
	)

Get name of POSIX thread and store in name buffer that is of size len.

Non-portable, extension function that conforms with most other definitions of this function.

Parameters

thread	POSIX thread to obtain name information
name	Destination buffer
len	Destination buffer size

Return values

0	Success
ESRCH	Thread does not exist
EINVAL	Name buffer is NULL
Negative	value if kernel function error

pthread_getschedparam()

int pthread_getschedparam	(	pthread_t	pthread,
		int *	policy,
		struct sched_param *	param
	)

pthread_getspecific()

void * pthread_getspecific

(

pthread_key_t

key

)

pthread_join()

int pthread_join	(	pthread_t	thread,
		void **	status
	)

pthread_key_create()

int pthread_key_create	(	pthread_key_t *	key,
		void(*)(void *)	destructor
	)

pthread_key_delete()

int pthread_key_delete

(

pthread_key_t

key

)

pthread_mutex_destroy()

int pthread_mutex_destroy

(

pthread_mutex_t *

m

)

POSIX threading compatibility API.

See IEEE 1003.1

pthread_mutex_init()

int pthread_mutex_init	(	pthread_mutex_t *	m,
		const pthread_mutexattr_t *	att
	)

POSIX threading compatibility API.

See IEEE 1003.1

pthread_mutex_lock()

int pthread_mutex_lock

(

pthread_mutex_t *

m

)

POSIX threading compatibility API.

See IEEE 1003.1

pthread_mutex_timedlock()

int pthread_mutex_timedlock	(	pthread_mutex_t *	m,
		const struct timespec *	abstime
	)

POSIX threading compatibility API.

See IEEE 1003.1

pthread_mutex_trylock()

int pthread_mutex_trylock

(

pthread_mutex_t *

m

)

POSIX threading compatibility API.

See IEEE 1003.1

pthread_mutex_unlock()

int pthread_mutex_unlock

(

pthread_mutex_t *

m

)

POSIX threading compatibility API.

See IEEE 1003.1

pthread_mutexattr_destroy()

int pthread_mutexattr_destroy

(

pthread_mutexattr_t *

attr

)

POSIX threading compatibility API.

See IEEE 1003.1

Note that pthread attribute structs are currently noops in Zephyr.

pthread_mutexattr_getprotocol()

int pthread_mutexattr_getprotocol	(	const pthread_mutexattr_t *	attr,
		int *	protocol
	)

POSIX threading compatibility API.

See IEEE 1003.1

pthread_mutexattr_gettype()

int pthread_mutexattr_gettype	(	const pthread_mutexattr_t *	attr,
		int *	type
	)

POSIX threading compatibility API.

See IEEE 1003.1

pthread_mutexattr_init()

int pthread_mutexattr_init

(

pthread_mutexattr_t *

attr

)

POSIX threading compatibility API.

See IEEE 1003.1

Note that pthread attribute structs are currently noops in Zephyr.

pthread_mutexattr_setprotocol()

int pthread_mutexattr_setprotocol	(	pthread_mutexattr_t *	attr,
		int	protocol
	)

POSIX threading compatibility API.

See IEEE 1003.1

pthread_mutexattr_settype()

int pthread_mutexattr_settype	(	pthread_mutexattr_t *	attr,
		int	type
	)

POSIX threading compatibility API.

See IEEE 1003.1

pthread_rwlock_destroy()

int pthread_rwlock_destroy

(

pthread_rwlock_t *

rwlock

)

pthread_rwlock_init()

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

pthread_rwlock_rdlock()

int pthread_rwlock_rdlock

(

pthread_rwlock_t *

rwlock

)

pthread_rwlock_timedrdlock()

int pthread_rwlock_timedrdlock	(	pthread_rwlock_t *	rwlock,
		const struct timespec *	abstime
	)

pthread_rwlock_timedwrlock()

int pthread_rwlock_timedwrlock	(	pthread_rwlock_t *	rwlock,
		const struct timespec *	abstime
	)

pthread_rwlock_tryrdlock()

int pthread_rwlock_tryrdlock

(

pthread_rwlock_t *

rwlock

)

pthread_rwlock_trywrlock()

int pthread_rwlock_trywrlock

(

pthread_rwlock_t *

rwlock

)

pthread_rwlock_unlock()

int pthread_rwlock_unlock

(

pthread_rwlock_t *

rwlock

)

pthread_rwlock_wrlock()

int pthread_rwlock_wrlock

(

pthread_rwlock_t *

rwlock

)

pthread_rwlockattr_destroy()

int pthread_rwlockattr_destroy

(

pthread_rwlockattr_t *

attr

)

Destroy the read-write lock attributes object.

See IEEE 1003.1

pthread_rwlockattr_getpshared()

int pthread_rwlockattr_getpshared	(	const pthread_rwlockattr_t *ZRESTRICT	attr,
		int *ZRESTRICT	pshared
	)

pthread_rwlockattr_init()

int pthread_rwlockattr_init

(

pthread_rwlockattr_t *

attr

)

initialize the read-write lock attributes object.

See IEEE 1003.1

pthread_rwlockattr_setpshared()

int pthread_rwlockattr_setpshared	(	pthread_rwlockattr_t *	attr,
		int	pshared
	)

pthread_self()

pthread_t pthread_self

(

void

)

Obtain ID of the calling thread.

The results of calling this API from threads not created with pthread_create() are undefined.

See IEEE 1003.1

pthread_setcancelstate()

int pthread_setcancelstate	(	int	state,
		int *	oldstate
	)

pthread_setcanceltype()

int pthread_setcanceltype	(	int	type,
		int *	oldtype
	)

pthread_setconcurrency()

int pthread_setconcurrency

(

int

new_level

)

pthread_setname_np()

int pthread_setname_np	(	pthread_t	thread,
		const char *	name
	)

Set name of POSIX thread.

Non-portable, extension function that conforms with most other definitions of this function.

Parameters

thread	POSIX thread to set name
name	Name string

Return values

0	Success
ESRCH	Thread does not exist
EINVAL	Name buffer is NULL
Negative	value if kernel function error

pthread_setschedparam()

int pthread_setschedparam	(	pthread_t	pthread,
		int	policy,
		const struct sched_param *	param
	)

pthread_setschedprio()

int pthread_setschedprio	(	pthread_t	thread,
		int	prio
	)

pthread_setspecific()

int pthread_setspecific	(	pthread_key_t	key,
		const void *	value
	)

pthread_testcancel()

void pthread_testcancel

(

void

)