getNchnls method

@override Future<int> getNchnls()

Implementation

@override
Future<int> getNchnls() async {
  Map<String, String> m = {MessageTag.MESSAGE_TYPE: MessageType.GET_NCHNLS};
  ReceivePort rport = new ReceivePort();
  _sendPort.send([m, rport.sendPort]);

  int res = 0;
  await for (var msg in rport) {
    res = int.parse(msg[0][MessageTag.MESSAGE_CONTENT]);
    break;
  }
  rport.close();
  return res;
}