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

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

       mq_close — close a message queue (REALTIME)

SYNOPSIS         top

       #include <mqueue.h>

       int mq_close(mqd_t mqdes);

DESCRIPTION         top

       The mq_close() function shall remove the association between the
       message 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
       notification.

RETURN VALUE         top

       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         top

       The mq_close() function shall fail if:

       EBADF  The mqdes argument is not a valid message queue descriptor.

       The following sections are informative.

EXAMPLES         top

       None.

APPLICATION USAGE         top

       None.

RATIONALE         top

       None.

FUTURE DIRECTIONS         top

       None.

SEE ALSO         top

       mq_open(3p), mq_unlink(3p), msgctl(3p), msgget(3p), msgrcv(3p),
       msgsnd(3p)

       The Base Definitions volume of POSIX.1‐2008, mqueue.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                        MQ_CLOSE(3P)