IPC::Msg
See the current Perl documentation for IPC::Msg.
Here is our local, out-dated (pre-5.6) version:
IPC::Msg - SysV Msg IPC object class
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);
METHODS
- new ( KEY , FLAGS )
-
Creates a new message queue associated with
KEY
. A new queue is created if-
KEY
is equal toIPC_PRIVATE
-
KEY
does not already have a message queue associated with it, and<EM>FLAGS</EM> & 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 msgrcv
- 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 typeTYPE
. See msgsnd. - stat
-
Returns an object of type
IPC::Msg::stat
which is a sub-class ofClass::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
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.