IPC::Msg(3p) Perl Programmers Reference Guide IPC::Msg(3p)
IPC::Msg - SysV Msg IPC object class
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 mes- sage 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 asso- ciated 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" struc- ture associated with the message queue. uid gid mode (oly the permission bits) qbytes perl v5.8.8 2005-02-05 1 IPC::Msg(3p) Perl Programmers Reference Guide IPC::Msg(3p) "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
Graham Barr <email@example.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. perl v5.8.8 2005-02-05 2
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