require 'rinda/rinda'

class FactServer
  def initialize(ts)
    @ts = ts
  end

  def main_loop
    loop do
      tuple = @ts.take({"request"=>"fact", "range"=>Range})
      value = tuple["range"].inject(1) { |a, b| a * b }
      @ts.write({"answer"=>"fact", "range"=>tuple["range"], "fact"=>value})
    end
  end
end

ts_uri = ARGV.shift || 'druby://localhost:12345'
DRb.start_service
$ts = DRbObject.new_with_uri(ts_uri)
 FactServer.new(Rinda::TupleSpaceProxy.new($ts)).main_loop