IPC::Msg(3pm) Perl Programmers Reference Guide IPC::Msg(3pm)
IPC::Msg - SysV Msg IPC object class
use IPC::SysV qw(IPC_PRIVATE S_IRUSR S_IWUSR);
$msg = IPC::Msg->new(IPC_PRIVATE, S_IRUSR | S_IWUSR);
$ds = $msg->stat;
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
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. Be careful
not to set any flags that the Sys V IPC implementation does not allow: in some systems
setting execute bits makes the operations fail.
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 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
mode (oly the permission bits)
"set" accepts either a stat object, as returned by the "stat" method, or a list of
snd ( TYPE, MSG [, FLAGS ] )
Place a message on the queue with the data from "MSG" and with type "TYPE". See
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
Graham Barr <email@example.com>, Marcus Holland-Moritz <firstname.lastname@example.org>
Version 2.x, Copyright (C) 2007-2010, Marcus Holland-Moritz.
Version 1.x, Copyright (c) 1997, Graham Barr.
This program is free software; you can redistribute it and/or modify it under the same
terms as Perl itself.
perl v5.16.3 2013-03-04 IPC::Msg(3pm)