drb socket pair protocol interface

drb_socket_pair.rb

class TimeServer
  def get_current_time
    Time.now
  end
end

################

URI = 'druby://localhost:8787'

DRb.start_service(URI, TimeServer.new)

pids = []

pids << Process.fork do
  timeserver = DRbObject.new_with_uri(URI)
  puts "#{Process.pid} #{timeserver.get_current_time}"
end

pids << Process.fork do
  timeserver = DRbObject.new_with_uri(URI)
  puts "#{Process.pid} #{timeserver.get_current_time}"
end

pids.each{|pid| Process.wait(pid) }

################

# DRb.start_service('drbsocketpair:', TimeServer.new)

# pids = []

# s0 = DRbSocketPair.create_socket
# pids << Process.fork do
#   timeserver = DRbObject.new_with_uri('drbsocketpair:s0')
#   puts "#{Process.pid} #{timeserver.get_current_time}"
# end
# s0.close

# s1 = DRbSocketPair.create_socket
# pids << Process.fork do
#   timeserver = DRbObject.new_with_uri('drbsocketpair:s1')
#   puts "#{Process.pid} #{timeserver.get_current_time}"
# end
# s1.close

# pids.each{|pid| Process.wait(pid) }