# File lib/eventmachine.rb, line 409
409:   def self.cancel_timer timer_or_sig
410:     if timer_or_sig.respond_to? :cancel
411:       timer_or_sig.cancel
412:     else
413:       @timers[timer_or_sig] = false if @timers.has_key?(timer_or_sig)
414:     end
415:   end