mq_close


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
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       description  of  the project, and information about reporting bugs, can
       be found at http://man7.org/linux/man-pages/.



Linux                             2010-08-29                       MQ_CLOSE(3)
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