NAME

pthread.h — threads

SYNOPSIS

#include <pthread.h>

DESCRIPTION

The <pthread.h> header defines the following symbols:

PTHREAD_CANCEL_ASYNCHRONOUS
PTHREAD_CANCEL_ENABLE
PTHREAD_CANCEL_DEFERRED
PTHREAD_CANCEL_DISABLE
PTHREAD_CANCELED
PTHREAD_COND_INITIALIZER
PTHREAD_CREATE_DETACHED
PTHREAD_CREATE_JOINABLE
PTHREAD_EXPLICIT_SCHED
PTHREAD_INHERIT_SCHED
PTHREAD_MUTEX_DEFAULT
PTHREAD_MUTEX_ERRORCHECK
PTHREAD_MUTEX_NORMAL
PTHREAD_MUTEX_INITIALIZER
PTHREAD_MUTEX_RECURSIVE
PTHREAD_ONCE_INIT
PTHREAD_PRIO_INHERIT
PTHREAD_PRIO_NONE
PTHREAD_PRIO_PROTECT
PTHREAD_PROCESS_SHARED
PTHREAD_PROCESS_PRIVATE
PTHREAD_RWLOCK_INITIALIZER
PTHREAD_SCOPE_PROCESS
PTHREAD_SCOPE_SYSTEM

The pthread_attr_t, pthread_cond_t, pthread_condattr_t, pthread_key_t, pthread_mutex_t, pthread_mutexattr_t, pthread_once_t, pthread_rwlock_t, pthread_rwlockattr_t and pthread_t types are defined as described in <sys/types.h>.

The following are declared as functions and may also be declared as macros. Function prototypes must be provided for use with an ISO C compiler. int pthread_attr_destroy(pthread_attr_t *); int pthread_attr_getdetachstate(const pthread_attr_t *, int *); int pthread_attr_getguardsize(const pthread_attr_t *, size_t *); 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_getstackaddr(const pthread_attr_t *, void **); int pthread_attr_getstacksize(const pthread_attr_t *, size_t *); int pthread_attr_init(pthread_attr_t *); int pthread_attr_setdetachstate(pthread_attr_t *, int); int pthread_attr_setguardsize(pthread_attr_t *, size_t); 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_attr_setstackaddr(pthread_attr_t *, void *); int pthread_attr_setstacksize(pthread_attr_t *, size_t); int pthread_cancel(pthread_t); void pthread_cleanup_push(void*), void *); void pthread_cleanup_pop(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_condattr_destroy(pthread_condattr_t *); int pthread_condattr_getpshared(const pthread_condattr_t *, int *); int pthread_condattr_init(pthread_condattr_t *); int pthread_condattr_setpshared(pthread_condattr_t *, int); 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 *); int pthread_getconcurrency(void); int pthread_getschedparam(pthread_t, int *, struct sched_param *); 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_mutex_destroy(pthread_mutex_t *); int pthread_mutex_getprioceiling(const pthread_mutex_t *, int *); int pthread_mutex_init(pthread_mutex_t *, const pthread_mutexattr_t *); int pthread_mutex_lock(pthread_mutex_t *); int pthread_mutex_setprioceiling(pthread_mutex_t *, int, int *); int pthread_mutex_trylock(pthread_mutex_t *); int pthread_mutex_unlock(pthread_mutex_t *); int pthread_mutexattr_destroy(pthread_mutexattr_t *); int pthread_mutexattr_getprioceiling(const pthread_mutexattr_t *, int *); int pthread_mutexattr_getprotocol(const pthread_mutexattr_t *, int *); int pthread_mutexattr_getpshared(const pthread_mutexattr_t *, int *); int pthread_mutexattr_gettype(const pthread_mutexattr_t *, int *); int pthread_mutexattr_init(pthread_mutexattr_t *); int pthread_mutexattr_setprioceiling(pthread_mutexattr_t *, int); int pthread_mutexattr_setprotocol(pthread_mutexattr_t *, int); int pthread_mutexattr_setpshared(pthread_mutexattr_t *, int); int pthread_mutexattr_settype(pthread_mutexattr_t *, int); 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_destroy(pthread_rwlockattr_t *); int pthread_rwlockattr_getpshared(const pthread_rwlockattr_t *, int *); int pthread_rwlockattr_init(pthread_rwlockattr_t *); int pthread_rwlockattr_setpshared(pthread_rwlockattr_t *, int); pthread_t pthread_self(void); int pthread_setcancelstate(int, int *); int pthread_setcanceltype(int, int *); int pthread_setconcurrency(int); int pthread_setschedparam(pthread_t, int , const struct sched_param *); int pthread_setspecific(pthread_key_t, const void *); void pthread_testcancel(void);

Inclusion of the <pthread.h> header will make visible symbols defined in the headers <sched.h> and <time.h>.

APPLICATION USAGE

An interpretation request has been filed with IEEE PASC concerning requirements for visibility of symbols in this header.

FUTURE DIRECTIONS

None.

SEE ALSO

pthread_attr_init(3) , pthread_attr_getguardsize(3) , pthread_attr_setscope(3) , pthread_cancel(3) , pthread_cleanup_push(3) , pthread_cond_init(3) , pthread_cond_signal(3) , pthread_cond_wait(3) , pthread_condattr_init(3) , pthread_create(3) , pthread_detach(3) , pthread_equal(3) , pthread_exit(3) , pthread_getconcurrency(3) , pthread_getschedparam(3) , pthread_join(3) , pthread_key_create(3) , pthread_key_delete(3) , pthread_mutex_init(3) , pthread_mutex_lock(3) , pthread_mutex_setprioceiling(3) , pthread_mutexattr_init(3) , pthread_mutexattr_gettype(3) , pthread_mutexattr_setprotocol(3) , pthread_once(3) , pthread_self(3) , pthread_setcancelstate(3) , pthread_setspecific(3) , pthread_rwlock_init(3) , pthread_rwlock_rdlock(3) , pthread_rwlock_unlock(3) , pthread_rwlock_wrlock(3) , pthread_rwlockattr_init(3) , <sched.h> , <time.h> .