[Kamaelia-announce] Kamaelia 0.1.2 released!

[Michael S. <Mic...@rd...>]

Kamaelia 0.1.2 has been released!


What is it?
===========
Kamaelia is a collection of Axon components designed for network protocol
experimentation in a single threaded, select based environment. Axon
components are python generators are augmented by inbox and outbox
queues (lists) for communication in a communicating sequential processes
(CSP) like fashion.

The architecture is specifically designed to try and simplify the process
of designing and experimenting with new network protocols in real
environments.

This release contains components allowing the creation of TCP based
clients and servers, and includes a few (very) simple protocol handlers
to show usage.

Other components include vorbis decode and playback, asynchronous file
reading, and equivalents of "tee" and "strings". (Writing systems is
much like building unix pipelines, hence the need for similar tools)

The system is known to work under Linux, Mac OS X, Windows and a subset
works on Series 60 mobiles.

We've also started a weblog which will form an informal discussion forum
for issues generally surrounding kamaelia. (We might put things like tutorials 
there for example)
   * http://kamaelia.sourceforge.net/cgi-bin/bl


What's new in version 0.1.2 ?
=============================

Additionally tested under Windows ME, 2000 and Mac OS X, along with a subset
tested on Series 60 mobiles and compatibility updates made as a result.
Ability to make simple multicast servers, clients and transceivers added.
Test harnesses for network servers tightened up.

Collection of examples added in the Examples directory:
   * Example 1 : Contains a simple "FortuneCookie" protocol system.
     Includes a server and client as part of a single system.

   * Example 2 : This has much the same structure, but rather than serve
     and display fortune cookies, serves (ogg vorbis) audio over a TCP
     connection to a client which decodes and plays back the audio.

   * Example 3 : Splits the structure in example 2 into a specific server
     application and a client application. This puts the two halves at odds,
     *competing* with each other for CPU time. Thus if both are run on the
     same (single CPU) system you will hear audio breakage. If run on
     separate machines (as client and server(!)) you won't hear this. In
     practice, part of the issue is that there is no buffering in the
     receiver.

   * Example 4 : Simple multicast based streaming system. Since it uses raw
     ogg vorbis with no resends and no codebook facility, you will need to
     *start all the client machines first* and *then* the server.
     Uses the multicast transceiver object exclusively.

    
Requirements
============
   * Python 2.3 or higher recommended, though please do report any bugs with 
2.2.
   * Axon (Any released version, 1.0.3 recommended, 1.0.4 when released)
   * vorbissimple (if you want to use the vorbis decode component)

(Both Axon and vorbissimple are separate parts of the Kamaelia project, and 
available at the same download location - see below)


Platforms
=========
Kamaelia has been used successfully under both Linux, Windows and Mac OS X.
A subset of Kamaelia has been successfully tested on Series 60 Nokia mobiles
when used with the Axon SERIES 60 branch.


Where can I get it?
===================
Web pages are here:
   http://kamaelia.sourceforge.net/Docs/
   http://kamaelia.sourceforge.net/ (includes info on mailing lists)

ViewCVS access is available here:
   http://cvs.sourceforge.net/viewcvs.py/kamaelia/

Weblog
   * http://kamaelia.sourceforge.net/cgi-bin/bl
   

Licensing
=========
Kamaelia is released under the Mozilla tri-license scheme (MPL/GPL/LGPL). 
Specifically you may choose to accept either the Mozilla Public License 1.1, 
the GNU General Public License 2.0 or the Lesser General Public License 2.1. 
Proprietary terms and conditions available upon request.

Best Regards,


Michael.
-- 
Michael Sparks, Senior R&D Engineer, Digital Media Group
Mic...@rd...,
British Broadcasting Corporation, Research and Development
Kingswood Warren, Surrey KT20 6NP

This e-mail may contain personal views which are not the views of the BBC.