Add bin and edit workflow

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

@@ -0,0 +1,45 @@
+module EventMachine
+
+  # This is subclassed from EventMachine::Connection for use with the process monitoring API. Read the
+  # documentation on the instance methods of this class, and for a full explanation see EventMachine.watch_process.
+  class ProcessWatch < Connection
+    # @private
+    Cfork = 'fork'.freeze
+    # @private
+    Cexit = 'exit'.freeze
+
+    # @private
+    def receive_data(data)
+      case data
+      when Cfork
+        process_forked
+      when Cexit
+        process_exited
+      end
+    end
+
+    # Returns the pid that EventMachine::watch_process was originally called with.
+    def pid
+      @pid
+    end
+
+    # Should be redefined with the user's custom callback that will be fired when the prcess is forked.
+    #
+    # There is currently not an easy way to get the pid of the forked child.
+    def process_forked
+    end
+
+    # Should be redefined with the user's custom callback that will be fired when the process exits.
+    #
+    # stop_watching is called automatically after this callback
+    def process_exited
+    end
+
+    # Discontinue monitoring of the process.
+    # This will be called automatically when a process dies. User code may call it as well.
+    def stop_watching
+      EventMachine::unwatch_pid(@signature)
+    end
+  end
+
+end