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mq_close (3)
  • mq_close (2) ( FreeBSD man: Системные вызовы )
  • >> mq_close (3) ( Solaris man: Библиотечные вызовы )
  • mq_close (3) ( Linux man: Библиотечные вызовы )
  • mq_close (3) ( POSIX man: Библиотечные вызовы )
  •  

    NAME

    mq_close - close a message queue
     
    

    SYNOPSIS

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

     

    DESCRIPTION

    The mq_close() function removes the association between the message queue descriptor, mqdes, and its message queue. The results of using this message queue descriptor after successful return from this mq_close(), and until the return of this message queue descriptor from a subsequent mq_open(3C), are undefined.

    If the process (or thread) has successfully attached a notification request to the message queue via this mqdes, this attachment is removed and the message queue is available for another process to attach for notification.  

    RETURN VALUES

    Upon successful completion, mq_close() returns 0; otherwise, the function returns -1 and sets errno to indicate the error condition.  

    ERRORS

    The mq_close() function will fail if:

    EBADF

    The mqdes argument is an invalid message queue descriptor.

    ENOSYS

    The mq_open() function is not supported by the system.

     

    ATTRIBUTES

    See attributes(5) for descriptions of the following attributes:

    ATTRIBUTE TYPEATTRIBUTE VALUE

    Interface StabilityCommitted

    MT-Level

    Standard

     

    SEE ALSO

    mqueue.h(3HEAD), mq_notify(3C), mq_open(3C), mq_unlink(3C), attributes(5), standards(5)  

    NOTES

    Solaris 2.6 was the first release to support the Asynchronous Input and Output option. Prior to this release, this function always returned -1 and set errno to ENOSYS.


     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    RETURN VALUES
    ERRORS
    ATTRIBUTES
    SEE ALSO
    NOTES


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