# File lib/thin/daemonizing.rb, line 121
      def send_signal(signal, pid_file, timeout=60)
        if pid = read_pid_file(pid_file)
          Logging.log_info "Sending #{signal} signal to process #{pid} ... "
          Process.kill(signal, pid)
          Timeout.timeout(timeout) do
            sleep 0.1 while Process.running?(pid)
          end
        else
          raise PidFileNotFound, "Can't stop process, no PID found in #{pid_file}"
        end
      rescue Timeout::Error
        Logging.log_info "Timeout!"
        force_kill(pid, pid_file)
      rescue Interrupt
        force_kill(pid, pid_file)
      rescue Errno::ESRCH # No such process
        Logging.log_info "process not found!"
        force_kill(pid, pid_file)
      end