The
mq_close ();
system call removes the association between the message queue descriptor,
Fa mqdes ,
and its message queue.
The results of using this message queue descriptor
after successful return from this
mq_close (,);
and until the return of this message queue descriptor from a subsequent
mq_open (,);
are undefined.
If the process has successfully attached a notification request to the
message queue via this
Fa mqdes ,
this attachment will be removed, and the message queue is available for
another process to attach for notification.
RETURN VALUES
Rv -std
ERRORS
The
mq_close ();
system call
will fail if:
Bq Er EBADF
The
Fa mqdes
argument is not a valid message queue descriptor.
SEE ALSO
mq_open2,
mq_unlink2
STANDARDS
The
mq_close ();
system call conforms to
St -p1003.1-2004 .
HISTORY
Support for
POSIX
message queues first appeared in
Fx 7.0 .
COPYRIGHT
Portions of this text are reprinted and reproduced in electronic form
from IEEE Std 1003.1, 2004 Edition, Standard for Information Technology --
Portable Operating System Interface (POSIX), The Open Group Base
Specifications Issue 6, Copyright (C) 2001-2004 by the Institute of
Electrical 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 referee document. The original Standard can be obtained online at
http://www.opengroup.org/unix/online.html.
