LWES - Light Weight Event System protocol implemented in pure ruby. The original lwes gem is a thin wrapper around the c library, and does not handle data types for dynamic LWES events. This gem allows users to define the data type of attributes in an clear way, so that your LWES event listeners will be happy. This library includes the following components:

  • Lwes::Event for reading from and writing to IO objects.

  • Lwes::Emitter for emitting LWES events through UDP socket.


gem install lwes_pure


If only Lwes::Event is needed, require like this:

require 'lwes/event'

If both Lwes::Event and Lwes::Emitter are needed, require like this:

require 'lwes'


Here is a short example to create an event and send it off using udp

# requiring lwes_pure gem
require 'lwes'

# create a LWES emitter
emitter = Lwes::Emitter.new({
  :host => "",
  :port => "12345"

# create a LWES event with 3 attributes of type int16, string, and ip array
event = Lwes::Event.new({
  :name => "Test::Event",
  :attributes => {
    'int_attribute' => [:int16, 123],
    'string_attribute' => [:attr_str, "test string"],
    'ip_attribute' => [:ip_v4_array, ["", "", ""]]

# send it off with the emitter
emitter.emit event

Future works

  • Implement Listener

  • Better error handling

Contributing to lwes_pure

  • Check out the latest master to make sure the feature hasn’t been implemented or the bug hasn’t been fixed yet

  • Check out the issue tracker to make sure someone already hasn’t requested it and/or contributed it

  • Fork the project

  • Start a feature/bugfix branch

  • Commit and push until you are happy with your contribution

  • Make sure to add tests for it. This is important so I don’t break it in a future version unintentionally.

  • Please try not to mess with the Rakefile, version, or history. If you want to have your own version, or is otherwise necessary, that is fine, but please isolate to its own commit so I can cherry-pick around it.

Copyright © 2011 Aaron Qian. See LICENSE.txt for further details.