/// <summary>
/// Called when a ReceiveAsyncFrom operation completes
/// </summary>
private void ProcessReceive(SocketAsyncEventArgs e)
{
try
{
if (e.BytesTransferred > 0 && e.SocketError == SocketError.Success)
{
packetsReceived++;
bytesReceived += e.BytesTransferred;
var request = e.UserToken as DnsRequestListenerSession;
// Handle this request
var responseBytes = DnsRequestProcessor.ProcessReceivedData(request);
if (responseBytes > 0)
{
request.SocketAsyncEventArgs.SetBuffer(0, responseBytes);
request.Socket.SendAsync(e);
return;
}
}
}
catch (Exception ex) {
// In case of an exception, close the socket
}
// Start listening again
this.CloseClientSocket(e);
}
/// <summary>
/// Called when a ReceiveAsyncFrom operation completes
/// </summary>
private void ProcessReceiveFrom(SocketAsyncEventArgs e)
{
try
{
if (e.BytesTransferred > 0 && e.SocketError == SocketError.Success)
{
packetsReceived++;
bytesReceived += e.BytesTransferred;
var request = e.UserToken as DnsRequestListenerSession;
// Handle this request
var responseBytes = DnsRequestProcessor.ProcessReceivedData(request);
if (responseBytes > 0)
{
request.SocketAsyncEventArgs.SetBuffer(0, responseBytes);
this.listenerSocket.SendToAsync(e);
}
}
else
{
// Start listening again
e.SetBuffer(0, e.Buffer.Length);
this.listenerSocket.ReceiveFromAsync(e);
}
}
catch {
// In case of an exception, start listening again
e.SetBuffer(0, e.Buffer.Length);
this.listenerSocket.ReceiveFromAsync(e);
}
}
