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MQ_CLOSE(3) NetBSD Library Functions Manual MQ_CLOSE(3)
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mq_close -- close a message queue (REALTIME)
POSIX Real-time Library (librt, -lrt)
The mq_close() function will remove the association between the message
queue descriptor, mqdes, and its message queue.
If the process has successfully attached a notification request to the
message queue via this mqdes, this attachment will be removed, and the
message queue is available for another process to attach for notifica-
The mq_close() function returns the value 0 if successful; otherwise the
value -1 is returned and the global variable errno is set to indicate the
The mq_close() function fails if:
[EBADF] The mqdes argument is not a valid message queue
mq(3), mq_open(3), mq_unlink(3)
This function conforms to the IEEE Std 1003.1-2001 (``POSIX.1'') stan-
The mq_close() function first appeared in NetBSD 5.0.
Portions of this text are reprinted and reproduced in electronic form
from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
-- Portable Operating System Interface (POSIX), The Open Group Base Spec-
ifications Issue 6, Copyright (C) 2001-2003 by the Institute of Electri-
cal and Electronics Engineers, Inc and The Open Group. In the event of
any discrepancy between this version and the original IEEE and The Open
Group Standard, the original IEEE and The Open Group Standard is the ref-
eree document. The original Standard can be obtained online at .:
NetBSD 9.1 June 7, 2010 NetBSD 9.1