mirror of https://github.com/mkerrisk/man-pages
69 lines
2.2 KiB
Plaintext
69 lines
2.2 KiB
Plaintext
.\" Copyright (c) 2001-2003 The Open Group, All Rights Reserved
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.TH "MQ_CLOSE" 3P 2003 "IEEE/The Open Group" "POSIX Programmer's Manual"
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.\" mq_close
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.SH NAME
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mq_close \- close a message queue (\fBREALTIME\fP)
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.SH SYNOPSIS
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.LP
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\fB#include <mqueue.h>
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.br
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.sp
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int mq_close(mqd_t\fP \fImqdes\fP\fB); \fP
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\fB
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.br
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\fP
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.SH DESCRIPTION
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.LP
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The \fImq_close\fP() function shall remove the association between
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the message queue descriptor, \fImqdes\fP, and its message
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queue. The results of using this message queue descriptor after successful
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return from this \fImq_close\fP(), and until the return
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of this message queue descriptor from a subsequent \fImq_open\fP(),
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are undefined.
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.LP
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If the process has successfully attached a notification request to
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the message queue via this \fImqdes\fP, this attachment
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shall be removed, and the message queue is available for another process
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to attach for notification.
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.SH RETURN VALUE
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.LP
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Upon successful completion, the \fImq_close\fP() function shall return
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a value of zero; otherwise, the function shall return a
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value of -1 and set \fIerrno\fP to indicate the error.
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.SH ERRORS
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.LP
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The \fImq_close\fP() function shall fail if:
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.TP 7
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.B EBADF
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The \fImqdes\fP argument is not a valid message queue descriptor.
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.sp
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.LP
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\fIThe following sections are informative.\fP
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.SH EXAMPLES
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.LP
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None.
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.SH APPLICATION USAGE
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.LP
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None.
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.SH RATIONALE
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.LP
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None.
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.SH FUTURE DIRECTIONS
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.LP
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None.
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.SH SEE ALSO
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.LP
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\fImq_open\fP() , \fImq_unlink\fP() , \fImsgctl\fP() , \fImsgget\fP()
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, \fImsgrcv\fP() , \fImsgsnd\fP() , the Base Definitions volume of
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IEEE\ Std\ 1003.1-2001, \fI<mqueue.h>\fP
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.SH COPYRIGHT
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Portions of this text are reprinted and reproduced in electronic form
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from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
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-- Portable Operating System Interface (POSIX), The Open Group Base
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Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of
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Electrical and Electronics Engineers, Inc and The Open Group. In the
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event of any discrepancy between this version and the original IEEE and
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The Open Group Standard, the original IEEE and The Open Group Standard
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is the referee document. The original Standard can be obtained online at
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http://www.opengroup.org/unix/online.html .
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