[ts-gen] TWEAKED: An example of multiplexing downstream using popen3() and threads

[Ken Feng]

Two small tweaks to the code I just posted (so the Hello World thread
doesn't get piled up behind the foobar thread).

Change mihs.rb to have no delay in response:

------------------------------------------------------------------------
#!/usr/bin/ruby

while (line=STDIN.gets)
  puts line.chomp.reverse
  STDOUT.flush
end
------------------------------------------------------------------------

Patch poll_from_mihs in mihs_client.rb so that it doesn't echo back
foobar responses and put in a small delay of 3 seconds for HelloWorld
reponses.

------------------------------------------------------------------------
  def poll_from_mihs
    while line = @stdout.gets do
      puts "RESPONSE = '" + line.chomp + "'"
      if ! line.include? "raboof"
        sleep 3
        puts_threadsafe line
      end
    end
  end
------------------------------------------------------------------------

The output should be more interesting after this patch.
This example is just an illustration of one way to multiplex the
downstream client via Ruby.

- Ken