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IPC::Msg(3)           User Contributed Perl Documentation          IPC::Msg(3)
NAME
       IPC::Msg - SysV Msg IPC object class
SYNOPSIS
           use IPC::SysV qw(IPC_PRIVATE S_IRUSR S_IWUSR);
           use IPC::Msg;
           $msg = IPC::Msg->new(IPC_PRIVATE, S_IRUSR | S_IWUSR);
           $msg->snd($msgtype, $msgdata);
           $msg->rcv($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
           o   "KEY" is equal to "IPC_PRIVATE"
           o   "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(2).  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(2).
       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::Struct
AUTHORS
       Graham Barr <gbarr AT pobox.com>, Marcus Holland-Moritz <mhx AT cpan.org>
COPYRIGHT
       Version 2.x, Copyright (C) 2007-2013, 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.
perl v5.26.3                      2016-05-09                       IPC::Msg(3)