一生霸气帝王道
require "drb"
require "drb_observer"
class ticker
include drbobservable
def initialize()
thread.new { run }
end
def run
loop do
price = 10
print "current price: #{price}\n"
notify_observers(time.now, price)
sleep 1
end
end
end
ticker = ticker.new()
drb.start_service('druby://localhost:9001', ticker)
puts 'press [return] to exit.'
gets
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