message queue problem

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Message Queue Problem

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Unix message Queue

Hi, I am working closly with unix message queues i have encountered the following - after creating the Q and start working with it (pushing & pulling) i receive the following stange parameters on the q's - STIME=no_entry Qnum=0 CBYTES=4140 when this happens, the Q is disabled (meaning i...

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mq_close

mq_close(3)						     Library Functions Manual						       mq_close(3)

NAME

       mq_close - Closes a message queue (P1003.1b)

LIBRARY

       Realtime Library (librt.so, librt.a)

SYNOPSIS

       #include <mqueue.h>

       int mq_close (
       mqd_t mqdes);

PARAMETERS

       mqdes   Specifies a message queue descriptor.

DESCRIPTION

       The  mq_close  function closes a message queue.	This function removes the association between the message queue descriptor, mqdes, and its
       open message queue description.	When all message queue descriptors associated with an open message queue description have been closed, the
       associated  open message queue description is removed.  The message associated with the message queue will then be deleted if mq_unlink was
       already called, or is called after all processes have closed the queue.

RETURN VALUES

       On successful completion, the function returns the value 0 (zero); otherwise, the function returns the value -1 and sets errno to  indicate
       the error.

ERRORS

       The mq_close function fails under the following conditions:

       [EBADF]	      The mqdes argument is an invalid message queue descriptor.

       [EFAULT]       An internal virtual memory error occurred.

RELATED INFORMATION

       Functions: mq_open(3), mq_unlink(3)

       Guide to Realtime Programming delim off

																       mq_close(3)

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