PTHREAD_BARRIERATTR(3) BSD Library Functions Manual PTHREAD_BARRIERATTR(3)NAME
pthread_barrierattr_init, pthread_barrierattr_destroy, -- barrier attribute operations
LIBRARY
POSIX Threads Library (libpthread, -lpthread)
SYNOPSIS
#include <pthread.h>
int
pthread_barrierattr_init(pthread_barrierattr_t *attr);
int
pthread_barrierattr_destroy(pthread_barrierattr_t *attr);
DESCRIPTION
Barrier attributes are used to specify parameters to be used with pthread_barrier_init(3). One attribute object can be used in multiple
calls to pthread_barrier_init(), with or without modifications between calls.
The pthread_barrierattr_init() function initializes attr with the default barrier attributes.
The pthread_barrierattr_destroy() function destroys attr.
RETURN VALUES
If successful, these functions return 0. Otherwise, an error number is returned to indicate the error.
ERRORS
No error codes are defined for pthread_barrierattr_init().
The pthread_barrierattr_destroy() function may fail if:
[EINVAL] The value specified by attr is invalid.
SEE ALSO pthread_barrier_init(3)STANDARDS
Both functions conform to IEEE Std 1003.1-2001 (``POSIX.1'').
BSD July 9, 2010 BSD
Check Out this Related Man Page
pthread_barrierattr_destroy(3C) Standard C Library Functions 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 reinitialized
using pthread_barrierattr_init(). The results of otherwise referencing the object after it has been destroyed are undefined. An implementa-
tion 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 specifying 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 num-
ber 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 ALSO pthread_barrierattr_getpshared(3C), attributes(5), standards(5)SunOS 5.10 30 Jan 2004 pthread_barrierattr_destroy(3C)
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