PTHREAD_BARRIERATTR_DESTROY(3C)PTHREAD_BARRIERATTR_DESTROY(3C)NAME
pthread_barrierattr_destroy, pthread_barrierattr_init - destroy and
initialize barrier attributes object
SYNOPSIS
cc -mt [ flag... ] file... [ library... ]
#include <pthread.h>
int pthread_barrierattr_destroy(pthread_barrierattr_t *attr);
int pthread_barrierattr_init(pthread_barrierattr_t *attr);
DESCRIPTION
The pthread_barrierattr_destroy() function destroys a barrier
attributes object. A destroyed attr attributes object can be reinitial‐
ized using pthread_barrierattr_init(). The results of otherwise refer‐
encing the object after it has been destroyed are undefined. An imple‐
mentation can cause pthread_barrierattr_destroy() to set the object
referenced by attr to an invalid value.
The pthread_barrierattr_init() function initializes a barrier
attributes object attr with the default value for all of the attributes
defined by the implementation.
Results are undefined if pthread_barrierattr_init() is called specify‐
ing an already initialized attr attributes object.
After a barrier attributes object has been used to initialize one or
more barriers, any function affecting the attributes object (including
destruction) does not affect any previously initialized barrier.
RETURN VALUES
Upon successful completion, the pthread_barrierattr_destroy() and
pthread_barrierattr_init() functions returns 0. Otherwise, an error
number is returned to indicate the error.
ERRORS
The pthread_barrierattr_init() function will fail if:
ENOMEM
Insufficient memory exists to initialize the barrier
attributes object.
The pthread_barrierattr_destroy() function may fail if:
EINVAL
The value specified by attr is invalid.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
┌────────────────────┬─────────────────┐
│ ATTRIBUTE TYPE │ ATTRIBUTE VALUE │
├────────────────────┼─────────────────┤
│Interface Stability │ Standard │
├────────────────────┼─────────────────┤
│MT-Level │ MT-Safe │
└────────────────────┴─────────────────┘
SEE ALSOpthread_barrierattr_getpshared(3C), attributes(5), standards(5)
Jan 30, 2004 PTHREAD_BARRIERATTR_DESTROY(3C)
