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IPC::Msg(3)
NAME
  IPC::Msg - SysV Msg IPC object class

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

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

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

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

      $ds = $msg->stat;

      $msg->remove;

DESCRIPTION
  A class providing an object based interface to SysV IPC message queues.

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

      *	  "KEY" is equal to "IPC_PRIVATE"

      *	  "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 msgrcv.  The	BUF becomes tainted.

  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 msgsnd.

  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
  IPC::SysV Class::Struct

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.

Index for Section 3

Alphabetical listing for I

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