Example codes for Hamamatsu Ruby Kaigi 01 Lightning Talks https://www.slideshare.net/koic/reading-1st-druby

gistfile1.rb

#
# artist.rb
#
class Artist
  def initialize(name)
    @name = name
  end

  attr_reader :name
end

#
# server.rb
#
require './artist'
require 'socket'

class RemoteServer
  def initialize(host, front)
    @server = TCPServer.open(host)
    @front = front
  end

  def start
    while true
      Thread.start(@server.accept) do |socket|
        begin
          method_name = Marshal.load(socket)

          result = @front.__send__(method_name)

          socket.write(Marshal.dump(result))
        ensure
          socket.close if socket
        end
      end
    end
  end
end

artist = Artist.new('Michael Amott')

RemoteServer.new(8989, artist).start

#
# remote_object.rb
#
require 'socket'

class RemoteObject
  def initialize(host, port)
    @socket = TCPSocket.open(host, port)
  end

  def method_missing(method_name)
    @socket.write(Marshal.dump(method_name))

    result = Marshal.load(@socket)
  ensure
    @socket.close if @socket

    result
  end
end

artist = RemoteObject.new('localhost', 8989)

puts artist.name