| EBADF | The message queue descriptor specified in mqdes is invalid. |
NAME
mq_close - close a message queue descriptor
LIBRARY
Real-time library (librt, -lrt)
SYNOPSIS
#include <mqueue.h>int mq_close(mqd_t \nmqdes\n);DESCRIPTION
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.
RETURN VALUE
On success mq_close() returns 0; on error, -1 is returned, with errno set to indicate the error.
ERRORS
- EBADF
The message queue descriptor specified in mqdes is invalid.
ATTRIBUTES
For an explanation of the terms used in this section, see attributes(7).
| Interface | Attribute | Value |
| mq_close () | Thread safety | MT-Safe |
STANDARDS
POSIX.1-2008.
HISTORY
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)