Name

mq_close — close a message queue descriptor

Synopsis

#include <mqueue.h>
int 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 3.33 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://man7.org/linux/man-pages/.


  t

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

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