posix man page for mq_close

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 correspond-
       ing 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 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
       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 POSIX.1-2008, <mqueue.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							      MQ_CLOSE(3P)