Initializing a Barrier Attributes Object

The pthread_barrierattr_init(3C) function initializes a barrier attributes object attr with the default values for the attributes defined for the object by the implementation. Currently, only the process-shared attribute is provided, and the pthread_barrierattr_getpshared() and pthread_barrierattr_setpshared() functions are used to get and set the attribute.

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.

pthread_barrierattr_init() Syntax

int pthread_barrierattr_init(pthread_barrierattr_t *attr);

#include <pthread.h> 
pthread_barrierattr_t attr; 
int ret; 
ret = pthread_barrierattr_init(&attr);

pthread_barrierattr_init() Return Values

pthread_barrierattr_init() returns zero after completing successfully. Any other return value indicates that an error occurred. If the following condition occurs, the function fails and returns the corresponding value.

ENOMEM

Description:

Insufficient memory exists to initialize the barrier attributes object.