mq_close(3p) - phpMan

MQ_CLOSE(3P)               POSIX Programmer's Manual              MQ_CLOSE(3P)

PROLOG
       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
       mq_close - close a message queue (REALTIME)
SYNOPSIS
       #include <mqueue.h>
       int mq_close(mqd_t mqdes);

DESCRIPTION
       The mq_close() function shall remove the association between  the  mes-
       sage  queue  descriptor,  mqdes,  and its message queue. The results of
       using this message queue descriptor after successful return  from  this
       mq_close(),  and until the return of this message queue descriptor from
       a subsequent mq_open(), are undefined.
       If the process has successfully attached a notification request to  the
       message queue via this mqdes, this attachment shall be removed, and the
       message queue is available for another process to attach for  notifica-
       tion.
RETURN VALUE
       Upon  successful  completion,  the  mq_close()  function shall return a
       value of zero; otherwise, the function shall return a value of  -1  and
       set errno to indicate the error.
ERRORS
       The mq_close() function shall fail if:
       EBADF  The mqdes argument is not a valid message queue descriptor.

       The following sections are informative.
EXAMPLES
       None.
APPLICATION USAGE
       None.
RATIONALE
       None.
FUTURE DIRECTIONS
       None.
SEE ALSO
       mq_open(),  mq_unlink(),  msgctl(),  msgget(),  msgrcv(), msgsnd(), the
       Base Definitions volume of IEEE Std 1003.1-2001, <mqueue.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 .

IEEE/The Open Group                  2003                         MQ_CLOSE(3P)