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Top Forums UNIX for Advanced & Expert Users UNIX Message Queues vs. Sockets Post 302111160 by zen29sky on Monday 19th of March 2007 05:02:47 PM
Old 03-19-2007
UNIX Message Queues vs. Sockets

If I use sockets for IPC, and can easily distribute my applications.
UNIX Message Queues are local to the processor.

As I understand it, Message Queues still incur system call overhead, just like socket calls.

What advantage does a UNIX Message Queue provide versus a TCP or UDP Socket, and when should they be used?
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IO::Socket::UNIX(3pm)					 Perl Programmers Reference Guide				     IO::Socket::UNIX(3pm)

NAME
IO::Socket::UNIX - Object interface for AF_UNIX domain sockets SYNOPSIS
use IO::Socket::UNIX; DESCRIPTION
"IO::Socket::UNIX" provides an object interface to creating and using sockets in the AF_UNIX domain. It is built upon the IO::Socket interface and inherits all the methods defined by IO::Socket. CONSTRUCTOR
new ( [ARGS] ) Creates an "IO::Socket::UNIX" object, which is a reference to a newly created symbol (see the "Symbol" package). "new" optionally takes arguments, these arguments are in key-value pairs. In addition to the key-value pairs accepted by IO::Socket, "IO::Socket::UNIX" provides. Type Type of socket (eg SOCK_STREAM or SOCK_DGRAM) Local Path to local fifo Peer Path to peer fifo Listen Create a listen socket If the constructor is only passed a single argument, it is assumed to be a "Peer" specification. NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE As of VERSION 1.18 all IO::Socket objects have autoflush turned on by default. This was not the case with earlier releases. NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE METHODS
hostpath() Returns the pathname to the fifo at the local end peerpath() Returns the pathanme to the fifo at the peer end SEE ALSO
Socket, IO::Socket AUTHOR
Graham Barr. Currently maintained by the Perl Porters. Please report all bugs to <perlbug@perl.org>. COPYRIGHT
Copyright (c) 1996-8 Graham Barr <gbarr@pobox.com>. All rights reserved. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. perl v5.18.2 2014-01-06 IO::Socket::UNIX(3pm)
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