<----SKIPPED LINES---->




    args: A tuple of function parameters to pass unmodified to start_function.

  Returns:
    The running process - either the same one that was passed in, or a new one if a
    restart was needed.
  """
  if not SHUTDOWN_SIGNAL:

    if not enabled:
      if p is not None:  # must have just requested a disabling of single instance
        args[2].value = 1  # trigger a shutdown on the single instance
      return None

    if p is None or not p.is_alive():
      if p is None:
        Log('Process for %s starting for first time' % str(start_function))
      elif VERBOSE:
        Log('Process (%s) for %s died; restarting' % (str(p), str(start_function)))
      args[2].value = 0  # (re)set shutdown flag to allow function to run
      p = multiprocessing.Process(target=start_function, args=args)
      p.daemon = True  # TODO: perhaps value of false will address correlated BT failures?
      p.start()

  return p


def LastFlightAvailable(flights, screen_history):
  """Returns True if last message sent to splitflap is not the last flight; else False."""
  if not screen_history:
    return False

  last_message_tuple = screen_history[-1]
  last_message_type = last_message_tuple[0]
  if last_message_type == FLAG_MSG_FLIGHT:
    last_message_flight = last_message_tuple[2]
    if SameFlight(last_message_flight, flights[-1]):
      return False  # already displaying the last flight!
  return True


def EnqueueArduinos(




                            <----SKIPPED LINES---->

                            <----SKIPPED LINES---->




    args: A tuple of function parameters to pass unmodified to start_function.

  Returns:
    The running process - either the same one that was passed in, or a new one if a
    restart was needed.
  """
  if not SHUTDOWN_SIGNAL:

    if not enabled:
      if p is not None:  # must have just requested a disabling of single instance
        args[2].value = 1  # trigger a shutdown on the single instance
      return None

    if p is None or not p.is_alive():
      if p is None:
        Log('Process for %s starting for first time' % str(start_function))
      elif VERBOSE:
        Log('Process (%s) for %s died; restarting' % (str(p), str(start_function)))
      args[2].value = 0  # (re)set shutdown flag to allow function to run
      p = multiprocessing.Process(target=start_function, args=args)
      p.daemon = False  # TODO: perhaps value of false will address correlated BT failures?
      p.start()

  return p


def LastFlightAvailable(flights, screen_history):
  """Returns True if last message sent to splitflap is not the last flight; else False."""
  if not screen_history:
    return False

  last_message_tuple = screen_history[-1]
  last_message_type = last_message_tuple[0]
  if last_message_type == FLAG_MSG_FLIGHT:
    last_message_flight = last_message_tuple[2]
    if SameFlight(last_message_flight, flights[-1]):
      return False  # already displaying the last flight!
  return True


def EnqueueArduinos(




                            <----SKIPPED LINES---->