openPort method

@override Future<void> openPort(String portPath)

Low level method for opening the Z-Wave port. Clients should call open which calls this method.

Implementation

@override
Future<void> openPort(String portPath) async {
  _logger.fine('starting isolate');
  final setupPort = ReceivePort();
  exitPort = ReceivePort();
  errorPort = ReceivePort()..listen(_processError);

  isolate = await Isolate.spawn(
    startIsolate,
    [portPath, setupPort.sendPort, notificationPort!.sendPort],
    debugName: 'zw_port_isolate',
    errorsAreFatal: true,
    onExit: exitPort!.sendPort,
    onError: errorPort!.sendPort,
  );

  _logger.fine('awaiting command port');
  cmdSendPort = (await setupPort.first) as SendPort;
  setupPort.close();

  // TODO move all native operations to the isolate

  _logger.fine('isolate started');
}