mq_close

Real-time library (librt, -lrt)

#include <mqueue.h>

int mq_close(mqd_t mqdes);

mq_close() closes the message queue descriptor mqdes.

If the calling process has attached a notification request (see mq_notify(3)) to this message queue via mqdes, then this request is removed, and another process can now attach a notification request.

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

EBADF

The message queue descriptor specified in mqdes is invalid.

For an explanation of the terms used in this section, see attributes(7).

POSIX.1-2008.

POSIX.1-2001.

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

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