Cool.io echo server using the fancy new DSL

echo_server.rb

require 'rubygems'
require 'cool.io'

ADDR = 'localhost'
PORT = 4321

cool.io.server ADDR, PORT do
  on_connect do
    puts "#{remote_addr}:#{remote_port} connected"
  end

  on_close do
    puts "#{remote_addr}:#{remote_port} disconnected"
  end

  on_read do |data|
    write data
  end
end

puts "Echo server listening on #{ADDR}:#{PORT}"
cool.io.run