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NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | ATTRIBUTES | CONFORMING TO | NOTES | SEE ALSO | COLOPHON |
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MQ_CLOSE(3) Linux Programmer's Manual MQ_CLOSE(3)
mq_close - close a message queue descriptor
#include <mqueue.h>
int mq_close(mqd_t mqdes);
Link with -lrt.
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).
┌──────────────────────────────────────┬───────────────┬─────────┐
│Interface │ Attribute │ Value │
├──────────────────────────────────────┼───────────────┼─────────┤
│mq_close() │ Thread safety │ MT-Safe │
└──────────────────────────────────────┴───────────────┴─────────┘
POSIX.1-2001, POSIX.1-2008.
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)
This page is part of release 5.13 of the Linux man-pages project.
A description of the project, information about reporting bugs,
and the latest version of this page, can be found at
https://www.kernel.org/doc/man-pages/.
Linux 2021-03-22 MQ_CLOSE(3)
Pages that refer to this page: mq_getattr(3), mq_notify(3), mq_open(3), mq_receive(3), mq_send(3), mq_unlink(3), mq_overview(7)
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