public async Task Connect(string hostname, int port, TransferProtocols protocol, Encoding encoding)
{
Protocol = new TransferProtocolFactory().CreateTransferProtocol(protocol, encoding, new Action <string>(Log));
Protocol.AddEventCallbacks(OnDataAvailable, OnBytesAvailable);
Client = new TcpClient();
Task t = Client.ConnectAsync(hostname, port);
await t;
NetworkStream stream = Client.GetStream();
buffer = new byte[Client.ReceiveBufferSize];
stream.BeginRead(buffer, 0, buffer.Length, ReadCallback, Client);
}
