PROLOG | NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | EXAMPLES | APPLICATION USAGE | RATIONALE | FUTURE DIRECTIONS | SEE ALSO | COPYRIGHT

PTHREAD_BARRIERATTR_DESTROY(3P) Programmer's ManualD_BARRIERATTR_DESTROY(3P)

PROLOG         top

       This manual page is part of the POSIX Programmer's Manual.  The Linux
       implementation of this interface may differ (consult the
       corresponding Linux manual page for details of Linux behavior), or
       the interface may not be implemented on Linux.

NAME         top

       pthread_barrierattr_destroy, pthread_barrierattr_init — destroy and
       initialize the barrier attributes object

SYNOPSIS         top

       #include <pthread.h>

       int pthread_barrierattr_destroy(pthread_barrierattr_t *attr);
       int pthread_barrierattr_init(pthread_barrierattr_t *attr);

DESCRIPTION         top

       The pthread_barrierattr_destroy() function shall destroy 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 implementation 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         top

       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         top

       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         top

       None.

APPLICATION USAGE         top

       None.

RATIONALE         top

       If an implementation detects that the value specified by the attr
       argument to pthread_barrierattr_destroy() does not refer to an
       initialized barrier attributes object, it is recommended that the
       function should fail and report an [EINVAL] error.

FUTURE DIRECTIONS         top

       None.

SEE ALSO         top

       pthread_barrierattr_getpshared(3p)

       The Base Definitions volume of POSIX.1‐2008, pthread.h(0p)

COPYRIGHT         top

       Portions of this text are reprinted and reproduced in electronic form
       from IEEE Std 1003.1, 2013 Edition, Standard for Information
       Technology -- 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 Standard 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)