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NAME

     IPC::Msg - SysV Msg IPC object class



SYNOPSIS
         use IPC::SysV qw(IPC_PRIVATE S_IRWXU S_IRWXG S_IRWXO);
         use IPC::Msg;

         $msg = new IPC::Msg(IPC_PRIVATE, S_IRWXU | S_IRWXG | S_IRWXO);

         $msg->snd(pack("L a*",$msgtype,$msg));

         $msg->rcv($buf,256);

         $ds = $msg->stat;

         $msg->remove;




DESCRIPTION


METHODS
     new ( KEY , FLAGS )
         Creates a new message queue associated with KEY. A new
         queue is created if

     o       KEY is equal to IPC_PRIVATE

     o       KEY does not already  have  a  message queue
             associated with it, and FLAGS & IPC_CREAT is true.

             On creation of a new message queue FLAGS is used to
             set the permissions.

     id  Returns the system message queue identifier.

     rcv ( BUF, LEN [, TYPE [, FLAGS ]] )
         Read a message from the queue. Returns the type of the
         message read. See the msgrcv manpage

     remove
         Remove and destroy the message queue from the system.

     set ( STAT )

     set ( NAME => VALUE [, NAME => VALUE ...] )
         set will set the following values of the stat structure
         associated with the message queue.

             uid
             gid
             mode (oly the permission bits)
             qbytes

         set accepts either a stat object, as returned by the
         stat method, or a list of name-value pairs.

     snd ( TYPE, MSG [, FLAGS ] )
         Place a message on the queue with the data from MSG and
         with type TYPE.  See the msgsnd manpage.

     stat
         Returns an object of type IPC::Msg::stat which is a
         sub-class of Class::Struct. It provides the following
         fields. For a description of these fields see you system
         documentation.

             uid
             gid
             cuid
             cgid
             mode
             qnum
             qbytes
             lspid
             lrpid
             stime
             rtime
             ctime




SEE ALSO
     the IPC::SysV manpage the Class::Struct manpage



AUTHOR
     Graham Barr <gbarr@pobox.com>



COPYRIGHT
     Copyright (c) 1997 Graham Barr. All rights reserved.  This
     program is free software; you can redistribute it and/or
     modify it under the same terms as Perl itself.









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