# File lib/god/cli/command.rb, line 199
      def check_command
        Thread.new do
          begin
            event_system = God::EventHandler.event_system
            puts "using event system: #{event_system}"

            if God::EventHandler.loaded?
              puts "starting event handler"
              God::EventHandler.start
            else
              puts "[fail] event system did not load"
              exit(1)
            end

            puts 'forking off new process'

            pid = fork do
              loop { sleep(1) }
            end

            puts "forked process with pid = #{pid}"

            God::EventHandler.register(pid, :proc_exit) do
              puts "[ok] process exit event received"
              exit!(0)
            end

            sleep(1)

            puts "killing process"

            ::Process.kill('KILL', pid)
            ::Process.waitpid(pid)
          rescue => e
            puts e.message
            puts e.backtrace.join("\n")
          end
        end

        sleep(2)

        puts "[fail] never received process exit event"
        exit(1)
      end