gistfile1.txt

require 'actor'
require 'http'
require 'http/socket'

class ServerActor
  attr_accessor :app
  def initialize(app)
    @app = app
    @actor = Actor.new do
      begin
        io = HTTP::Socket.new(Actor.receive)
        env = io.parse_request
        response = @app.call(env)
        io.send_response response
      rescue => e
        puts "Exception in Server Actor: #{e.message if e.respond_to?(:message)}\n#{e.awesome_backtrace}"
      ensure
        io.close if io
      end
    end
  end

  def process(request)
    @actor << request
  end
end

gistfile2.txt

class Server
  [...]
  def start
    @socket = TCPServer.new(@address, @port.to_i)
    log "Server running at #{@address}:#{@port}"

    loop do
      conn = @socket.accept
      actor = ServerActor.new(@app)
      actor.process(conn)
    end
  end
end