/// <summary>
/// Continuously checks for client connections until the Close method has been called.
/// </summary>
/// <returns>A task that represents the asynchronous connection operation</returns>
private async Task DoWorkAsync()
{
_cancellationPending = false;
_listenerSocket = new TcpListener(LocalEndPoint);
_listenerSocket.Start();
_cancelListening = new CancellationTokenSource();
try
{
while (_cancellationPending == false)
{
try
{
var client = await Task.Run(() => _listenerSocket.AcceptTcpClientAsync(), _cancelListening.Token);
var acceptingArgs = new ConnectionAcceptingEventArgs(client);
OnConnectionAccepting(this, acceptingArgs);
if (acceptingArgs.Cancel)
{
#if !NET452
client.Dispose();
#else
client.Close();
#endif
continue;
}
OnConnectionAccepted(this, new ConnectionAcceptedEventArgs(client));
}
catch (Exception ex)
{
OnConnectionFailure(this, new ConnectionFailureEventArgs(ex));
}
}
OnListenerStopped(this, new ConnectionListenerStoppedEventArgs(LocalEndPoint));
}
catch (ObjectDisposedException)
{
OnListenerStopped(this, new ConnectionListenerStoppedEventArgs(LocalEndPoint));
}
catch (Exception ex)
{
OnListenerStopped(this,
new ConnectionListenerStoppedEventArgs(LocalEndPoint, _cancellationPending ? null : ex));
}
finally
{
_backgroundWorkerTask = null;
_cancellationPending = false;
}
}
private static void DeviceFinder_DeviceConnectionAccepting(object sender, ConnectionAcceptingEventArgs e)
{
e.ConnectionDeferral.AcceptAlways();
}
