         # File lib/eventmachine.rb, line 284
    284:     def EventMachine::fork_reactor &block
    285:             Kernel.fork do
    286:                     if self.reactor_running?
    287:                             self.stop_event_loop
    288:                             self.release_machine
    289:                             self.instance_variable_set( '@reactor_running', false )
    290:                     end
    291:                     self.run block
    292:             end
    293:     end