root / examples / pingpong / serial.rb

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#!/usr/bin/env ruby
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class PingPong





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  def initialize name





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    @name = name





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  end





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  def pingpong count, partner





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    if count == 0





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      puts "#{@name}: done"





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    else





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      if count % 500 == 0 or count % 500 == 1





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        puts "#{@name}: pingpong #{count}"





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      end





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      partner.pingpong count-1, self





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      # sleep 0.001





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    end





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  end





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end





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ping = PingPong.new "ping"





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pong = PingPong.new "pong"





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ping.pingpong ARGV[0].to_i, pong