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+'\" et
+.TH MQ_CLOSE "3P" 2017 "IEEE/The Open Group" "POSIX Programmer's Manual"
+.\"
+.SH PROLOG
+This manual page is part of the POSIX Programmer's Manual.
+The Linux implementation of this interface may differ (consult
+the corresponding Linux manual page for details of Linux behavior),
+or the interface may not be implemented on Linux.
+.\"
+.SH NAME
+mq_close
+\(em close a message queue
+(\fBREALTIME\fP)
+.SH SYNOPSIS
+.LP
+.nf
+#include <mqueue.h>
+.P
+int mq_close(mqd_t \fImqdes\fP);
+.fi
+.SH DESCRIPTION
+The
+\fImq_close\fR()
+function shall remove the association between the message queue
+descriptor,
+.IR mqdes ,
+and its message queue. The results of using this message queue
+descriptor after successful return from this
+\fImq_close\fR(),
+and until the return of this message queue descriptor from a subsequent
+\fImq_open\fR(),
+are undefined.
+.P
+If the process has successfully attached a notification request to the
+message queue via this
+.IR mqdes ,
+this attachment shall be removed, and the message queue is available
+for another process to attach for notification.
+.SH "RETURN VALUE"
+Upon successful completion, the
+\fImq_close\fR()
+function shall return a value of zero; otherwise, the function shall
+return a value of \-1 and set
+.IR errno
+to indicate the error.
+.SH ERRORS
+The
+\fImq_close\fR()
+function shall fail if:
+.TP
+.BR EBADF
+The
+.IR mqdes
+argument is not a valid message queue descriptor.
+.LP
+.IR "The following sections are informative."
+.SH EXAMPLES
+None.
+.SH "APPLICATION USAGE"
+None.
+.SH RATIONALE
+None.
+.SH "FUTURE DIRECTIONS"
+None.
+.SH "SEE ALSO"
+.IR "\fImq_open\fR\^(\|)",
+.IR "\fImq_unlink\fR\^(\|)",
+.IR "\fImsgctl\fR\^(\|)",
+.IR "\fImsgget\fR\^(\|)",
+.IR "\fImsgrcv\fR\^(\|)",
+.IR "\fImsgsnd\fR\^(\|)"
+.P
+The Base Definitions volume of POSIX.1\(hy2017,
+.IR "\fB<mqueue.h>\fP"
+.\"
+.SH COPYRIGHT
+Portions of this text are reprinted and reproduced in electronic form
+from IEEE Std 1003.1-2017, Standard for Information Technology
+-- Portable Operating System Interface (POSIX), The Open Group Base
+Specifications Issue 7, 2018 Edition,
+Copyright (C) 2018 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 .
+.PP
+Any typographical or formatting errors that appear
+in this page are most likely
+to have been introduced during the conversion of the source files to
+man page format. To report such errors, see
+https://www.kernel.org/doc/man-pages/reporting_bugs.html .