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Handle potentially invalid received serial commands without crashing

master
LeapwardKoex 2025-03-15 22:40:38 +13:00
parent 6e8500a479
commit f12494faf3
1 changed files with 40 additions and 36 deletions
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76
Managers/MaiTouchComConnector.cs
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@ -5,7 +5,7 @@ namespace WpfMaiTouchEmulator.Managers;
internal class MaiTouchComConnector(MaiTouchSensorButtonStateManager buttonState, MainWindowViewModel viewModel)
{
private static SerialPort? serialPort;
private bool isActiveMode;
private bool _isActiveMode;
private bool _connected;
private CancellationTokenSource? _tokenSource;
private Thread? _pollThread;
@ -39,7 +39,7 @@ internal class MaiTouchComConnector(MaiTouchSensorButtonStateManager buttonState
if (!_connected && _shouldReconnect)
{
Logger.Info("Trying to connect to COM port...");
var virtualPort = "COM23"; // Adjust as needed
var virtualPort = "COM23";
try
{
OnConnectStatusChange?.Invoke(_viewModel.TxtComPortConnecting);
@ -86,10 +86,10 @@ internal class MaiTouchComConnector(MaiTouchSensorButtonStateManager buttonState
{
while (!token.IsCancellationRequested)
{
if (isActiveMode)
if (_isActiveMode)
{
SendTouchscreenState();
Thread.Sleep(1);
Thread.Sleep(10);
}
else
{
@ -139,48 +139,52 @@ internal class MaiTouchComConnector(MaiTouchSensorButtonStateManager buttonState
void SerialPort_DataReceived(object sender, SerialDataReceivedEventArgs e)
{
var recievedData = serialPort?.ReadExisting();
var commands = recievedData?.Split(new[] { '}' }, StringSplitOptions.RemoveEmptyEntries);
if (commands != null)
var commands = recievedData?.Split(['}'], StringSplitOptions.RemoveEmptyEntries);
if (commands is null)
{
foreach (var command in commands)
return;
}
foreach (var command in commands)
{
var cleanedCommand = command.TrimStart('{');
Logger.Info($"Received serial data: '{cleanedCommand}'");
OnDataRecieved?.Invoke(cleanedCommand);
if (cleanedCommand == "STAT")
{
_isActiveMode = true;
}
else if (cleanedCommand == "RSET")
{
var cleanedCommand = command.TrimStart('{');
Logger.Info($"Received serial data: {cleanedCommand}");
OnDataRecieved?.Invoke(cleanedCommand);
if (cleanedCommand == "STAT")
{
isActiveMode = true;
}
else if (cleanedCommand == "RSET")
{
}
else if (cleanedCommand == "HALT")
{
_isActiveMode = false;
}
else if (cleanedCommand.Length >= 4 &&
(cleanedCommand[2] == 'r' || cleanedCommand[2] == 'k'))
{
var leftOrRight = cleanedCommand[0];
var sensor = cleanedCommand[1];
var ratio = cleanedCommand[3];
}
else if (cleanedCommand == "HALT")
{
isActiveMode = false;
}
else if (cleanedCommand[2] == 'r' || cleanedCommand[2] == 'k')
{
var leftOrRight = cleanedCommand[0];
var sensor = cleanedCommand[1];
var ratio = cleanedCommand[3];
var newString = $"({leftOrRight}{sensor}{cleanedCommand[2]}{ratio})";
serialPort?.Write(newString);
OnDataSent?.Invoke(newString);
}
else
{
Logger.Warn($"Unhandled serial data command {cleanedCommand}");
}
var newString = $"({leftOrRight}{sensor}{cleanedCommand[2]}{ratio})";
serialPort?.Write(newString);
OnDataSent?.Invoke(newString);
}
else
{
Logger.Warn($"Unhandled serial data command '{cleanedCommand}'");
}
}
}
void SendTouchscreenState()
{
if (_connected)
if (_connected && _isActiveMode)
{
var currentState = _buttonState.GetCurrentState();
try