Man page of IPC::Msg
Section: Perl Programmers Reference Guide (3perl)
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IPC::Msg - SysV Msg IPC object class
use IPC::SysV qw(IPC_PRIVATE S_IRUSR S_IWUSR);
$msg = new IPC::Msg(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
"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. 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.
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 message queue.
mode (oly the permission bits)
"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".
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.
Graham Barr <[email protected]>
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.
- SEE ALSO
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Time: 04:14:15 GMT, September 24, 2010