IPC::Msg
Section: Perl Programmers Reference Guide (3)
Updated: perl 5.005, patch 02
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NAME
IPC::Msg - SysV Msg IPC object class
SYNOPSIS
use IPC::SysV qw(IPC_PRIVATE S_IRWXU S_IRWXG S_IRWXO);
use IPC::Msg;
$msg = new IPC::Msg(IPC_PRIVATE, S_IRWXU | S_IRWXG | S_IRWXO);
$msg->snd(pack("L a*",$msgtype,$msg));
$msg->rcv($buf,256);
$ds = $msg->stat;
$msg->remove;
DESCRIPTION
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.
- 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
the msgrcv manpage
- 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 the msgsnd manpage.
- 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
the IPC::SysV manpage the Class::Struct manpage
AUTHOR
Graham Barr <gbarr@pobox.com>
COPYRIGHT
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.
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- METHODS
-
- SEE ALSO
-
- AUTHOR
-
- COPYRIGHT
-
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