PTHREAD_BARRIERATTR_DESTROY(3P) POSIX Programmer's Manual PTHREAD_BARRIERATTR_DESTROY(3P)
PROLOG
This manual page is part of the POSIX Programmer's Manual. The Linux implementation of this interface may differ (consult the correspond-
ing Linux manual page for details of Linux behavior), or the interface may not be implemented on Linux.
NAME
pthread_barrierattr_destroy, pthread_barrierattr_init -- destroy and initialize the barrier attributes object
SYNOPSIS
#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 shall destroy a barrier attributes object. A destroyed attr attributes object can be reinitial-
ized using pthread_barrierattr_init(); the results of otherwise referencing the object after it has been destroyed are undefined. An imple-
mentation may cause pthread_barrierattr_destroy() to set the object referenced by attr to an invalid value.
The pthread_barrierattr_init() function shall initialize a barrier attributes object attr with the default value for all of the attributes
defined by the implementation.
If pthread_barrierattr_init() is called specifying an already initialized attr attributes object, the results are undefined.
After a barrier attributes object has been used to initialize one or more barriers, any function affecting the attributes object (including
destruction) shall not affect any previously initialized barrier.
The behavior is undefined if the value specified by the attr argument to pthread_barrierattr_destroy() does not refer to an initialized
barrier attributes object.
RETURN VALUE
If successful, the pthread_barrierattr_destroy() and pthread_barrierattr_init() functions shall return zero; otherwise, an error number
shall be returned to indicate the error.
ERRORS
The pthread_barrierattr_init() function shall fail if:
ENOMEM Insufficient memory exists to initialize the barrier attributes object.
These functions shall not return an error code of [EINTR].
The following sections are informative.
EXAMPLES
None.
APPLICATION USAGE
None.
RATIONALE
If an implementation detects that the value specified by the attr argument to pthread_barrierattr_destroy() does not refer to an initial-
ized barrier attributes object, it is recommended that the function should fail and report an [EINVAL] error.
FUTURE DIRECTIONS
None.
SEE ALSO
pthread_barrierattr_getpshared()
The Base Definitions volume of POSIX.1-2008, <pthread.h>
COPYRIGHT
Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2013 Edition, Standard for Information Technol-
ogy -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 7, Copyright (C) 2013 by the Institute of
Electrical and Electronics Engineers, Inc and The Open Group. (This is POSIX.1-2008 with the 2013 Technical Corrigendum 1 applied.) In the
event of any discrepancy between this version and the original IEEE and The Open Group Standard, the original IEEE and The Open Group Stan-
dard is the referee document. The original Standard can be obtained online at http://www.unix.org/online.html .
Any typographical or formatting errors that appear in this page are most likely to have been introduced during the conversion of the source
files to man page format. To report such errors, see https://www.kernel.org/doc/man-pages/reporting_bugs.html .
IEEE
/The Open Group 2013 PTHREAD_BARRIERATTR_DESTROY(3P)