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NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | ATTRIBUTES | STANDARDS | HISTORY | NOTES | SEE ALSO | COLOPHON |
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mq_close(3) Library Functions Manual mq_close(3)
mq_close - close a message queue descriptor
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).
┌─────────────────────────────────────┬───────────────┬─────────┐
│ Interface │ Attribute │ Value │
├─────────────────────────────────────┼───────────────┼─────────┤
│ mq_close() │ Thread safety │ MT-Safe │
└─────────────────────────────────────┴───────────────┴─────────┘
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)
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Linux man-pages 6.9.1 2024-05-02 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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HTML rendering created 2024-06-26 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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