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);

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.

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

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.

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

Linux 2.6.16                      2006-02-25                       MQ_CLOSE(3)