MQ_CLOSE(3)                                         Linux Programmer's Manual                                        MQ_CLOSE(3)



NAME
       mq_close - close a message queue descriptor

SYNOPSIS
       #include <mqueue.h>

       mqd_t mq_close(mqd_t mqdes);

       Link with -lrt.

DESCRIPTION
       mq_close() closes the message queue descriptor mqdes.

       If the calling process has attached a notification request to this message queue via mqdes, then this request is removed,
       and another process can now attach a notification request.

RETURN VALUE
       On success mq_close() returns 0; on error, -1 is returned, with errno set to indicate the error.

ERRORS
       EBADF  The descriptor specified in mqdes is invalid.

CONFORMING TO
       POSIX.1-2001.

NOTES
       All open message queues are automatically closed on process termination, or upon execve(2).

SEE ALSO
       mq_getattr(3), mq_notify(3), mq_open(3), mq_receive(3), mq_send(3), mq_unlink(3), mq_overview(7)

COLOPHON
       This page is part of release 3.25 of the Linux man-pages project.  A description of the project,  and  information  about
       reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.



Linux                                                      2006-02-25                                                MQ_CLOSE(3)