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);
}
}
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();
}
}
public void sendMessage(string command)
{
if (ConnectStatus())
{
if (command.ToUpper() == "ACK")
{
sendAck();
//return "ACKED";
}
else
{
SendCadCommand(stream, CADHelpers.GetSeq(), command);
//return ret;
}
}
}
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();
}
}