Add bin and edit workflow

bin/gems/eventmachine-1.2.7/lib/em/timers.rb

@@ -0,0 +1,61 @@
+module EventMachine
+  # Creates a one-time timer
+  #
+  #  timer = EventMachine::Timer.new(5) do
+  #    # this will never fire because we cancel it
+  #  end
+  #  timer.cancel
+  #
+  class Timer
+    # Create a new timer that fires after a given number of seconds
+    def initialize interval, callback=nil, &block
+      @signature = EventMachine::add_timer(interval, callback || block)
+    end
+
+    # Cancel the timer
+    def cancel
+      EventMachine.send :cancel_timer, @signature
+    end
+  end
+
+  # Creates a periodic timer
+  #
+  # @example
+  #  n = 0
+  #  timer = EventMachine::PeriodicTimer.new(5) do
+  #    puts "the time is #{Time.now}"
+  #    timer.cancel if (n+=1) > 5
+  #  end
+  #
+  class PeriodicTimer
+    # Create a new periodic timer that executes every interval seconds
+    def initialize interval, callback=nil, &block
+      @interval = interval
+      @code = callback || block
+      @cancelled = false
+      @work = method(:fire)
+      schedule
+    end
+
+    # Cancel the periodic timer
+    def cancel
+      @cancelled = true
+    end
+
+    # Fire the timer every interval seconds
+    attr_accessor :interval
+
+    # @private
+    def schedule
+      EventMachine::add_timer @interval, @work
+    end
+
+    # @private
+    def fire
+      unless @cancelled
+        @code.call
+        schedule
+      end
+    end
+  end
+end