NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | ATTRIBUTES | CONFORMING TO | NOTES | SEE ALSO | COLOPHON

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

NAME         top

       mq_close - close a message queue descriptor

SYNOPSIS         top

       #include <mqueue.h>

       int mq_close(mqd_t mqdes);

       Link with -lrt.

DESCRIPTION         top

       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         top

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

ERRORS         top

       EBADF  The message queue descriptor specified in mqdes is invalid.

ATTRIBUTES         top

       For an explanation of the terms used in this section, see
       attributes(7).

       ┌───────────┬───────────────┬─────────┐
       │Interface  Attribute     Value   │
       ├───────────┼───────────────┼─────────┤
       │mq_close() │ Thread safety │ MT-Safe │
       └───────────┴───────────────┴─────────┘

CONFORMING TO         top

       POSIX.1-2001, POSIX.1-2008.

NOTES         top

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

SEE ALSO         top

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

COLOPHON         top

       This page is part of release 4.08 of the Linux man-pages project.  A
       description of the project, information about reporting bugs, and the
       latest version of this page, can be found at
       https://www.kernel.org/doc/man-pages/.

Linux                            2016-03-15                      MQ_CLOSE(3)