Name

mq_close — close a message queue descriptor

Synopsis

#include <mqueue.h>
mqd_t mq_close( mqd_t   mqdes);
[Note] Note

Link with −lrt.

DESCRIPTION

mq_close() closes the message queue descriptor mqdes.

If the calling process has attached a notification request to this message queue via mqdes, then this request is removed, and another process can now attach a notification request.

RETURN VALUE

On success mq_close() returns 0; on error, −1 is returned, with errno set to indicate the error.

ERRORS

EBADF

The descriptor specified in mqdes is invalid.

CONFORMING TO

POSIX.1-2001.

NOTES

All open message queues are automatically closed on process termination, or upon execve(2).

SEE ALSO

mq_getattr(3), mq_notify(3), mq_open(3), mq_receive(3), mq_send(3), mq_unlink(3), mq_overview(7)

COLOPHON

This page is part of release 2.79 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.


  t

Copyright (C) 2006 Michael Kerrisk <mtk.manpagesgmail.com>

Permission is granted to make and distribute verbatim copies of this
manual provided the copyright notice and this permission notice are
preserved on all copies.

Permission is granted to copy and distribute modified versions of this
manual under the conditions for verbatim copying, provided that the
entire resulting derived work is distributed under the terms of a
permission notice identical to this one.

Since the Linux kernel and libraries are constantly changing, this
manual page may be incorrect or out-of-date.  The author(s) assume no
responsibility for errors or omissions, or for damages resulting from
the use of the information contained herein.

Formatted or processed versions of this manual, if unaccompanied by
the source, must acknowledge the copyright and authors of this work.