apophis.SharpIRC.IrcFeatures.DccSend.InitWork C# (CSharp) Method

        internal override void InitWork(Object stateInfo)
        {
            if (!Valid)
                return;
            if (DccServer != null)
            {
                Connection = DccServer.AcceptTcpClient();
                RemoteEndPoint = (IPEndPoint)Connection.Client.RemoteEndPoint;
                DccServer.Stop();
                IsConnected = true;
            }
            else
            {
                while (!IsConnected)
                {
                    Thread.Sleep(500); // We wait till Request is Accepted (or jump out when rejected)
                    if (Reject) return;
                }
            }

            DccSendStartEvent(new DccEventArgs(this));
            int bytes;

            if (directionUp)
            {
                do
                {
                    while (Connection.Available > 0)
                    {
                        switch (speed)
                        {
                            case DccSpeed.Rfc:
                                Connection.GetStream().Read(buffer, 0, buffer.Length);
                                // TODO: only send x not ACKed Bytes ahead / (nobody wants this anyway)
                                break;
                            case DccSpeed.RfcSendAhead:
                                Connection.GetStream().Read(buffer, 0, buffer.Length);
                                break;
                            case DccSpeed.Turbo: // Available > 0 should not happen
                                break;
                        }
                    }

                    bytes = file.Read(buffer, 0, buffer.Length);
                    try
                    {
                        Connection.GetStream().Write(buffer, 0, bytes);
                    }
                    catch (IOException)
                    {
                        bytes = 0; // Connection Lost
                    }

                    sentBytes += bytes;

                    if (bytes > 0)
                    {
                        DccSendSentBlockEvent(new DccSendEventArgs(this, buffer, bytes));
                        Console.Write(".");
                    }
                } while (bytes > 0);
            }
            else
            {
                while ((bytes = Connection.GetStream().Read(buffer, 0, buffer.Length)) > 0)
                {
                    file.Write(buffer, 0, bytes);
                    sentBytes += bytes;
                    if (speed != DccSpeed.Turbo)
                    {
                        Connection.GetStream().Write(GetAck(sentBytes), 0, 4);
                    }

                    DccSendReceiveBlockEvent(new DccSendEventArgs(this, buffer, bytes));
                }
            }

            IsValid = false;
            IsConnected = false;
            Console.WriteLine("--> Filetrangsfer Endet / Bytes sent: " + sentBytes + " of " + filesize);
            DccSendStopEvent(new DccEventArgs(this));
        }