private void AcceptClient(IAsyncResult result)
{
using(ScopedActivity localActivity = new ScopedActivity("Accepting Client Connection"))
{
TcpClient client = null;
TcpListener listener = (TcpListener)result.AsyncState;
//this section is critical for the robustness of the application.
//it should only accept the client and begin accepting new connections
//in the finally block
try
{
localActivity.Log("Listener: {0}", listener.LocalEndpoint);
client = listener.EndAcceptTcpClient(result);
}
catch (Exception ex)
{
localActivity.LogException(ex, "An exception occurred while accepting client connection");
}
finally
{
listener.BeginAcceptTcpClient(AcceptClient, listener);
}
//if client was successfully accepted, continue the processing chain
if (client != null)
{
ProcessClient(client, listener, localActivity);
}
}
}
public void Start()
{
try
{
_HasStarted = true;
_Activity = new ScopedActivity("SmtpListener");
InitializeListeners();
}
catch (Exception ex)
{
if (_Activity != null)
{
_Activity.LogException(ex, "Exception Occurred While Starting Smtp Listener");
}
}
}