GNU/Linux man pages
Livre :
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Syntaxe et mise en oeuvre :
GNU/Linux |
CentOS 5.1 |
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IPC::Msg(3pm) |
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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 message queues.
new ( KEY , FLAGS )
Creates a new message queue associated with "KEY". A new queue is created if
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"KEY" is equal to "IPC_PRIVATE" | ||
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"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.
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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.
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IPC::Msg(3pm) | |