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IPC::Msg.3pm
Langue: en
Version: 2010-09-06 (fedora - 01/12/10)
Section: 3 (Bibliothèques de fonctions)
NAME
IPC::Msg - SysV Msg IPC object classSYNOPSIS
use IPC::SysV qw(IPC_PRIVATE S_IRUSR S_IWUSR); use IPC::Msg; $msg = IPC::Msg->new(IPC_PRIVATE, S_IRUSR | S_IWUSR); $msg->snd(pack("l! a*",$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. 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
- 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::StructAUTHORS
Graham Barr <gbarr@pobox.com>, Marcus Holland-Moritz <mhx@cpan.org>COPYRIGHT
Version 2.x, Copyright (C) 2007, 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.
Contenus ©2006-2024 Benjamin Poulain
Design ©2006-2024 Maxime Vantorre