Name
mq_close - close a message queue descriptorLibrary
Real-time library ( librt ", " -lrt )Synopsis
#include <mqueue.h> int mq_close(mqd_t mqdes );
Description
mq_close() closes the message queue descriptormqdes. 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 |
| T} | 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)