1MQ_CLOSE(P)                POSIX Programmer's Manual               MQ_CLOSE(P)
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NAME

6       mq_close - close a message queue (REALTIME)
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SYNOPSIS

9       #include <mqueue.h>
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11       int mq_close(mqd_t mqdes);
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DESCRIPTION

15       The  mq_close()  function shall remove the association between the mes‐
16       sage queue descriptor, mqdes, and its message  queue.  The  results  of
17       using  this  message queue descriptor after successful return from this
18       mq_close(), and until the return of this message queue descriptor  from
19       a subsequent mq_open(), are undefined.
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21       If  the process has successfully attached a notification request to the
22       message queue via this mqdes, this attachment shall be removed, and the
23       message  queue is available for another process to attach for notifica‐
24       tion.
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RETURN VALUE

27       Upon successful completion, the  mq_close()  function  shall  return  a
28       value  of  zero; otherwise, the function shall return a value of -1 and
29       set errno to indicate the error.
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ERRORS

32       The mq_close() function shall fail if:
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34       EBADF  The mqdes argument is not a valid message queue descriptor.
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37       The following sections are informative.
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EXAMPLES

40       None.
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APPLICATION USAGE

43       None.
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RATIONALE

46       None.
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FUTURE DIRECTIONS

49       None.
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SEE ALSO

52       mq_open() , mq_unlink() , msgctl() , msgget() , msgrcv() ,  msgsnd()  ,
53       the Base Definitions volume of IEEE Std 1003.1-2001, <mqueue.h>
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56       Portions  of  this text are reprinted and reproduced in electronic form
57       from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
58       --  Portable  Operating  System  Interface (POSIX), The Open Group Base
59       Specifications Issue 6, Copyright (C) 2001-2003  by  the  Institute  of
60       Electrical  and  Electronics  Engineers, Inc and The Open Group. In the
61       event of any discrepancy between this version and the original IEEE and
62       The  Open Group Standard, the original IEEE and The Open Group Standard
63       is the referee document. The original Standard can be  obtained  online
64       at http://www.opengroup.org/unix/online.html .
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68IEEE/The Open Group                  2003                          MQ_CLOSE(P)
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