public async Task TryStartScanning()
{
DevicesFound.Clear();
IsScanning = true;
await adapter.StartScanningForDevicesAsync();
IsScanning = false;
}
private void Adapter_DeviceDiscovered(object sender, DeviceEventArgs e)
{
if (string.IsNullOrWhiteSpace(e.Device.Name))
{
return;
}
DevicesFound.Add(e.Device);
Debug.WriteLine($"Device found: {e.Device.Name}");
}
public async Task ConnectToDevice(IDevice device)
{
try {
await adapter.StopScanningForDevicesAsync();
IsScanning = false;
await adapter.ConnectToDeviceAsync(device);
Context.Settings.BluetoothDeviceId = device.Id;
DevicesFound.Clear();
} catch (DeviceConnectionException e) {
// ... could not connect to device
Debug.WriteLine(e);
}
}
// Thread Safe Add/Remove Methods & Device Provider
static public void AddDevice(String _identifier, Type _deviceType)
{
if (!_deviceType.IsSubclassOf(typeof(Device)))
{
return;
}
_identifier = _identifier.ToUpper();
lock (DevicesFound)
{
if (!DevicesFound.Exists(x => (x.Key == _identifier && x.Value == _deviceType)))
{
DevicesFound.Add(new KeyValuePair <String, Type>(_identifier, _deviceType));
ReportDevicesFound();
}
}
}
static public void RemoveDevice(String _identifier)
{
_identifier = _identifier.ToUpper();
lock (DevicesFound)
{
// Manage DevicesFound List
Int32 numDeleted = DevicesFound.RemoveAll(x => x.Key == _identifier);
// Update Flash
if (numDeleted > 0)
{
ReportDevicesFound();
}
// Disconnect Device & Manage DevicesConnected List
DisconnectDeviceByIdentifier(_identifier);
}
}
public void FindDevices()
{
IsSearching = true;
_devices.Clear();
_discoveryCancellationTokenSource = new CancellationTokenSource();
var token = _discoveryCancellationTokenSource.Token;
var startTime = DateTime.UtcNow;
Task.Run(() =>
{
//find devices in folder with ipaddresses
var files = _fileManager.GetFiles(Path.Combine(_fileManager.DataDirectory, "LDARtools", "emulators"));
foreach (var file in files)
{
var ipText = _fileManager.ReadAllText(file);
FileInfo f = new FileInfo(file);
var fileName = f.Name.Replace(f.Extension, "");
if (IPAddress.TryParse(ipText, out var ip))
{
var deviceService = new PhxTcpDeviceService(ipText, fileName);
deviceService.Connected += DeviceOnConnected;
deviceService.Disconnected += DeviceOnDisconnected;
_devices.Add(deviceService);
try
{
DevicesFound?.Invoke(new DevicesFoundEventArgs(Devices));
}
#pragma warning disable 168
catch (Exception e)
#pragma warning restore 168
{
Debugger.Break();
}
}
}
//find using udp
try
{
using (var udpClient = new UdpClient())
{
udpClient.Client.Bind(new IPEndPoint(IPAddress.Any, UdpDiscoveryPort));
udpClient.JoinMulticastGroup(IPAddress.Parse(MulticastAddress));
var messageSource = new IPEndPoint(0, 0);
while (true)
{
if (token.IsCancellationRequested)
{
break;
}
var encodedMessage = udpClient.Receive(ref messageSource);
var message = Encoding.UTF8.GetString(encodedMessage);
if (message.StartsWith("phx@"))
{
var computerName = message.Substring(4, message.Length - 4);
var deviceName = $"phxSim@{computerName}({messageSource.Address})";
if (_devices.All(d => d.SerialNumber != deviceName))
{
var deviceService =
new PhxTcpDeviceService(messageSource.Address.ToString(), deviceName);
deviceService.Connected += DeviceOnConnected;
deviceService.Disconnected += DeviceOnDisconnected;
_devices.Add(deviceService);
try
{
DevicesFound?.Invoke(new DevicesFoundEventArgs(Devices));
}
#pragma warning disable CS0168 // Variable is declared but never used
catch (Exception e)
#pragma warning restore CS0168 // Variable is declared but never used
{
Debugger.Break();
}
}
}
if (DateTime.UtcNow - startTime > TimeSpan.FromSeconds(30))
{
break;
}
}
DevicesFoundComplete?.Invoke(this, EventArgs.Empty);
}
}
catch
{
//do nothing
}
}, token);
}
protected virtual void OnDevicesFound(DevicesFoundEventArgs args)
{
DevicesFound?.Invoke(args);
}