Example #1
0
        public void TcpOnRecievedData(IAsyncResult ar)
        {
            String sGPS;

            // Get The connection socket from the callback
            TCPSockets tcpSockets = (TCPSockets)ar.AsyncState;

            try
            {
                // Get The data , if any
                int nBytesRec = tcpSockets.socket.EndReceive(ar);
                if (nBytesRec > 0)
                {
                    sGPS = System.Text.Encoding.ASCII.GetString(tcpSockets.byTcpBuffer, 0, nBytesRec);


                    try
                    {
                        if (m_GpsTracker.m_MessageMonitor != null)
                        {
                            m_GpsTracker.m_MessageMonitor.AddMessageTCPUDPRaw(sGPS);
                        }
                    }
                    catch (Exception)
                    {
                        m_GpsTracker.m_MessageMonitor = null;
                    }


                    tcpSockets.sStream += sGPS;
                    int     iIndex = -1;
                    char [] cEOL   = { '\n', '\r' };
                    string  sData  = "";
                    do
                    {
                        iIndex = tcpSockets.sStream.IndexOfAny(cEOL);
                        if (iIndex >= 0)
                        {
                            sData = tcpSockets.sStream.Substring(0, iIndex);
                            sData = sData.Trim(cEOL);
                            tcpSockets.sStream = tcpSockets.sStream.Remove(0, iIndex + 1);

                            if (sData != "")
                            {
                                m_GpsTracker.ShowGPSIcon(sData.ToCharArray(), sData.Length, false, tcpSockets.iDeviceIndex, false, true, 0, 0);
                            }
                        }
                    }while(iIndex >= 0);
                }

                AsyncCallback recieveData = new AsyncCallback(TcpOnRecievedData);
                // Begin reading data asyncronously
                tcpSockets.socket.BeginReceive(tcpSockets.byTcpBuffer, 0, tcpSockets.byTcpBuffer.Length, SocketFlags.None, recieveData, tcpSockets);
            }
            catch (Exception)
            {
            }
        }
Example #2
0
 //
 // UDP TCP Functions
 //
 public void TcpConnectCallback(IAsyncResult ar)
 {
                 #if !DEBUG
     try
                 #endif
     {
         // Get The connection socket from the callback
         TCPSockets tcpSockets = (TCPSockets)ar.AsyncState;
         if (tcpSockets.socket.Connected)
         {
             // Define a new Callback to read the data
             AsyncCallback recieveData = new AsyncCallback(TcpOnRecievedData);
             // Begin reading data asyncronously
             tcpSockets.socket.BeginReceive(tcpSockets.byTcpBuffer, 0, tcpSockets.byTcpBuffer.Length, SocketFlags.None, recieveData, tcpSockets);
         }
     }
                 #if !DEBUG
     catch (Exception)
     {
     }
                 #endif
 }
Example #3
0
        public void UdpReceiveData(IAsyncResult iar)
        {
            try
            {
                String sGPS;

                // Create temporary remote end Point
                IPEndPoint sender       = new IPEndPoint(IPAddress.Any, 0);
                EndPoint   tempRemoteEP = (EndPoint)sender;

                // Get the Socket
                TCPSockets tcpSockets = (TCPSockets)iar.AsyncState;
                Socket     remote     = tcpSockets.socketUDP;

                // Call EndReceiveFrom to get the received Data
                int nBytesRec = remote.EndReceiveFrom(iar, ref tempRemoteEP);

                if (nBytesRec > 0)
                {
                    sGPS = System.Text.Encoding.ASCII.GetString(tcpSockets.byTcpBuffer, 0, nBytesRec);

                    try
                    {
                        if (m_GpsTracker.m_MessageMonitor != null)
                        {
                            m_GpsTracker.m_MessageMonitor.AddMessageTCPUDPRaw(sGPS);
                        }
                    }
                    catch (Exception)
                    {
                        m_GpsTracker.m_MessageMonitor = null;
                    }



                    tcpSockets.sStream += sGPS;
                    int     iIndex = -1;
                    char [] cEOL   = { '\n', '\r' };
                    string  sData  = "";
                    do
                    {
                        iIndex = tcpSockets.sStream.IndexOfAny(cEOL);
                        if (iIndex >= 0)
                        {
                            sData = tcpSockets.sStream.Substring(0, iIndex);
                            sData = sData.Trim(cEOL);
                            tcpSockets.sStream = tcpSockets.sStream.Remove(0, iIndex + 1);

                            if (sData != "")
                            {
                                m_GpsTracker.ShowGPSIcon(sData.ToCharArray(), sData.Length, false, tcpSockets.iDeviceIndex, false, true, 0, 0);
                            }
                        }
                    }while(iIndex >= 0);
                }

                GPSSource gpsSource = (GPSSource)m_GpsTracker.m_gpsSourceList[tcpSockets.iDeviceIndex];
                EndPoint  endPoint  = new IPEndPoint(IPAddress.Any, Convert.ToInt32(gpsSource.iUDPPort));
                remote.BeginReceiveFrom(tcpSockets.byTcpBuffer, 0, 1024, SocketFlags.None, ref endPoint, new AsyncCallback(UdpReceiveData), tcpSockets);
            }
            catch (Exception)
            {
            }
        }