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pthread_barrierattr_destroy (3)
  • pthread_barrierattr_destroy (3) ( Solaris man: Библиотечные вызовы )
  • pthread_barrierattr_destroy (3) ( FreeBSD man: Библиотечные вызовы )
  • >> pthread_barrierattr_destroy (3) ( POSIX man: Библиотечные вызовы )
  •  

    NAME

    pthread_barrierattr_destroy, pthread_barrierattr_init - destroy and
    initialize the barrier attributes object
    (ADVANCED REALTIME THREADS)
     
    

    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 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.

    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) shall not affect any previously initialized barrier.  

    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_destroy() function may fail if:

    EINVAL
    The value specified by attr is invalid.

    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

    The pthread_barrierattr_destroy() and pthread_barrierattr_init() functions are part of the Barriers option and need not be provided on all implementations.  

    RATIONALE

    None.  

    FUTURE DIRECTIONS

    None.  

    SEE ALSO

    pthread_barrierattr_getpshared() , pthread_barrierattr_setpshared() , the Base Definitions volume of IEEE Std 1003.1-2001, <pthread.h>.  

    COPYRIGHT

    Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of Electrical and Electronics Engineers, Inc and The Open Group. 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.opengroup.org/unix/online.html .


     

    Index

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


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