1. ==== Client code
2. 
   require 'drb/drb'

1. The URI to connect to
   SERVER_URI="druby://localhost:8787"

1. Start a local DRbServer to handle callbacks.
   #
2. Not necessary for this small example, but will be required
3. as soon as we pass a non-marshallable object as an argument
4. to a dRuby call.
   DRb.start_service

timeserver = DRbObject.new_with_uri(SERVER_URI)

100.times do
sleep(1)
puts timeserver.get_current_time
end

1. This illustrates setting up a simple client-server drb
2. system. Run the server and client code in different terminals,
3. starting the server code first.
   #
4. ==== Server code
5. 
   require 'drb/drb'

1. The URI for the server to connect to
   URI="druby://localhost:8787"

class TimeServer

def get_current_time
return Time.now
end

end

1. The object that handles requests on the server
   FRONT_OBJECT=TimeServer.new

$SAFE = 1 # disable eval() and friends

DRb.start_service(URI, FRONT_OBJECT)

1. Wait for the drb server thread to finish before exiting.
   DRb.thread.join

This problem only occurs on windows and only with JRUBY running the client.
Since Drb uses Sockets , it a socket problem.