/// <inheritdoc />
internal override void StartListening(EndPoint desiredLocalListenEndPoint, bool useRandomPortFailOver)
{
if (IsListening) throw new InvalidOperationException("Attempted to call StartListening when already listening.");
if(!(desiredLocalListenEndPoint is BluetoothEndPoint)) throw new ArgumentException("Bluetooth connections can only be made from a local BluetoothEndPoint", "desiredLocalListenIPEndPoint");
try
{
ServiceRecordBuilder bldr = new ServiceRecordBuilder();
bldr.AddServiceClass((desiredLocalListenEndPoint as BluetoothEndPoint).Service);
if (IsDiscoverable)
bldr.AddCustomAttribute(new ServiceAttribute(NetworkCommsBTAttributeId.NetworkCommsEndPoint, ServiceElement.CreateNumericalServiceElement(ElementType.UInt8, 1)));
listenerInstance = new BluetoothListener(desiredLocalListenEndPoint as BluetoothEndPoint, bldr.ServiceRecord);
listenerInstance.Start();
listenerInstance.BeginAcceptBluetoothClient(BluetoothConnectionReceivedAsync, null);
}
catch (SocketException)
{
//If the port we wanted is not available
if (useRandomPortFailOver)
{
try
{
Guid service = Guid.NewGuid();
ServiceRecordBuilder bldr = new ServiceRecordBuilder();
bldr.AddServiceClass(service);
if (IsDiscoverable)
bldr.AddCustomAttribute(new ServiceAttribute(NetworkCommsBTAttributeId.NetworkCommsEndPoint, ServiceElement.CreateNumericalServiceElement(ElementType.UInt8, 1)));
listenerInstance = new BluetoothListener(new BluetoothEndPoint((desiredLocalListenEndPoint as BluetoothEndPoint).Address, service), bldr.ServiceRecord);
listenerInstance.Start();
listenerInstance.BeginAcceptBluetoothClient(BluetoothConnectionReceivedAsync, null);
}
catch (SocketException)
{
//If we get another socket exception this appears to be a bad IP. We will just ignore this IP
if (NetworkComms.LoggingEnabled) NetworkComms.Logger.Error("It was not possible to open a random port on " + desiredLocalListenEndPoint + ". This endPoint may not support listening or possibly try again using a different port.");
throw new CommsSetupShutdownException("It was not possible to open a random port on " + desiredLocalListenEndPoint + ". This endPoint may not support listening or possibly try again using a different port.");
}
}
else
{
if (NetworkComms.LoggingEnabled) NetworkComms.Logger.Error("It was not possible to listen on " + desiredLocalListenEndPoint.ToString() + ". This endPoint may not support listening or possibly try again using a different port.");
throw new CommsSetupShutdownException("It was not possible to listen on " + desiredLocalListenEndPoint.ToString() + ". This endPoint may not support listening or possibly try again using a different port.");
}
}
this.LocalListenEndPoint = desiredLocalListenEndPoint;
this.IsListening = true;
}
private void Start()
{
try
{
listener = new BluetoothListener(MyServiceUuid); // Listen on primary radio
listener.Start();
listener.BeginAcceptBluetoothClient(acceptBluetoothClient, null);
}
catch (Exception ex)
{
MessageBox.Show(this, string.Format("Could not start listener. {0}", ex.Message));
return;
}
status.Text = string.Format("Listening at {0}, HCI version {1}...",
BluetoothRadio.PrimaryRadio.Name, BluetoothRadio.PrimaryRadio.HciVersion);
startButton.Enabled = false;
stopButton.Enabled = true;
}
void StartListener()
{
var listener = new BluetoothListener(OurServiceClassId);
InfoMessage("Starting listener");
listener.Start();
listener.BeginAcceptBluetoothClient(this.BluetoothListenerAcceptClientCallback, listener);
InfoMessage("Started listening...");
}
