Simple DRb Client + Echoserver (localhost)

EchoClient.rb

require "drb/drb"

print "port: "
port = gets.strip

raise "port is no valid" unless /^\d+$/ =~ port

there = DRbObject.new_with_uri("druby://localhost:#{ port }")

loop {
  print "send message: "
  there.puts(gets.strip)
}

EchoServer.rb

require "drb/drb"

class EchoServer
  def initialize(stream=$stdout)
    @stream = stream
    DRb.start_service('druby://localhost:0', self)
    @uri = DRb.uri
    puts "HW-Server started at #{ @uri }"
    tnow()
    DRb.thread.join()
  end

  def puts(str)
    @stream.puts(str)
  end
  private
  def tnow
    Thread.start {
      loop {
        puts ">>> #{Time.now} <<<"
        sleep 10
      }
    }.join()
  end
end
EchoServer.new