---

Manual Reference Pages  - IPC::Msg (3pm)

---

IPC::Msg - SysV Msg IPC object class

CONTENTS

    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;

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

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

IPC::SysV Class::Struct

Graham Barr <gbarr@pobox.com>

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.

Jump to page    or go to Top of page |  Section 3pm |  Main Index.