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

NAME
       mq_close - close a message queue descriptor
SYNOPSIS
       #include <mqueue.h>
       int 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 mes-
       sage 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  termina-
       tion, 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 3.53 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                             2010-08-29                       MQ_CLOSE(3)