Exemple #1
0
 private void sendHeartBeat()
 {
     try
     {
         //Byte[] bytes = new Byte[1];
         //bytes[0] = ENQ;
         //stream.Write(bytes, 0, bytes.Length);
         SendCadCommand(stream, CADHelpers.GetSeq(), "ENQ");
         lastHBSent = DateTime.Now.ToString("MM/dd/yyyy hh:mm:ss");
     }
     catch (Exception ex)
     {
         Console.WriteLine(ex.Message);
     }
 }
Exemple #2
0
 private void sendAck()
 {
     try
     {
         //Byte[] bytes = new Byte[1];
         //bytes[0] = ACK;
         //stream.Write(bytes, 0, bytes.Length);
         SendCadCommand(stream, CADHelpers.GetSeq(), "ACK");
     }
     catch (Exception ex)
     {
         //throw new Exception("ERROR Acking CAD: " + ex.Message);
         string err = ex.ToString();
     }
 }
Exemple #3
0
 public void sendMessage(string command)
 {
     if (ConnectStatus())
     {
         if (command.ToUpper() == "ACK")
         {
             sendAck();
             //return "ACKED";
         }
         else
         {
             SendCadCommand(stream, CADHelpers.GetSeq(), command);
             //return ret;
         }
     }
 }
Exemple #4
0
        public void RunListener() //this is the actual listener process
        {
            const Byte ETX = 0x03;
            const Byte ENQ = 0x05;
            const Byte ACK = 0x06;

            try
            {
                // buffer for message from FSP to CAD
                Byte[] fsp2cadBytes = new Byte[1024];

                // buffer for message from CAD to FSP
                Byte[] cad2fspBytes = new Byte[256];

                // buffer to read 1 byte from FSP
                Byte[] charBuf = new Byte[1];
                tcpListener = new TcpListener(IPAddress.Any, port);
                tcpListener.Start();
                //Socket socket = tcpListener.AcceptSocket();
                socket = tcpListener.AcceptSocket();

                //while (exitThreadEvent.WaitOne(0))
                while (bRunServer)
                {
                    //using (socket = tcpListener.AcceptSocket())
                    //{
                    if (socket.Connected)
                    {
                        ConnectStatus = true;
                        using (stream = new NetworkStream(socket))
                        {
                            int nRead, msgLength = 0;
                            for (int i = 0; i < fsp2cadBytes.Length; i++)
                            {
                                nRead = stream.Read(charBuf, 0, 1);
                                if (nRead == 0)
                                {
                                    //null from stream, shut down
                                    return;
                                }
                                if (charBuf[0] == ETX)
                                {
                                    //end transmission
                                    break;
                                }
                                if (charBuf[0] == ENQ)
                                {
                                    //Heartbeat message
                                    gotHeartbeat();
                                    break;
                                }
                                fsp2cadBytes[i] = charBuf[0];
                                msgLength++;
                            }
                            if (msgLength != 0)
                            {
                                string cadText = System.Text.Encoding.ASCII.GetString(fsp2cadBytes, 1, msgLength - 1);
                                //cad2fspBytes[0] = ACK;
                                byte[] cadAck = new byte[1];
                                cadAck[0] = ACK;
                                stream.Write(cadAck, 0, 1);
                                //msgData = cadText;
                                //msgData = MessageParser.parseIncoming(cadText);
                                DataClasses.GlobalData.cadReceived.Add(DateTime.Now.ToString() + " " + cadText);
                                SQL.SQLCode mySQL = new SQL.SQLCode();
                                cadMsgID = (Guid)mySQL.logCADMessage("REC", cadText);
                                mySQL    = null;
                                //send accept message
                                if (!cadText.Contains("\\AM.") && !cadText.Contains("\\RM."))
                                {
                                    if (cadText.Contains("II"))
                                    {
                                        //see if the truck is available.
                                        bool avail = CADHelpers.truckAvailable(cadText);
                                        if (avail == false)
                                        {
                                            string msg = CADHelpers.makeRM(cadText);
                                            //Global.cSender.sendMessage(msg);
                                        }
                                        else
                                        {
                                            MessageParser.processMessage(cadText, cadMsgID);
                                            string msg = CADHelpers.makeAM(cadText);
                                            Global.cSender.sendMessage(msg);
                                        }
                                    }
                                    else
                                    {
                                        MessageParser.processMessage(cadText, cadMsgID);
                                        string msg = CADHelpers.makeAM(cadText);
                                        Global.cSender.sendMessage(msg);
                                    }
                                }

                                gotMessage(EventArgs.Empty);
                            }
                            stream.Flush();
                        }
                    }
                }
            }
            catch (Exception ex)
            {
                string err = ex.ToString();
            }
        }