public Server(CpsNet CpsNet, string port)
{
this.listening = false;
_sender = CpsNet;
if (!int.TryParse(port, out _srvPort))
{
_sender.logMsg(new log(LogType.error, "udp_server -> error convert Port to int: " + port));
}
initSrv();
}
public void receive()
{
////// TODO ########################################################################### IBS ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
//Thread.Sleep(500); //Verzögerung: Beim Tool starten wird erste logmeldung sporadisch zu früh an gui gesendet
try
{
listener = new UdpClient(_srvPort);
}
catch (SocketException)
{
_sender.logMsg(new log(LogType.fatal_error, "udp_server -> Exception making UdpClient @Port: " + _srvPort));
}
if (listener != null)
{
IPEndPoint groupEP = new IPEndPoint(IPAddress.Any, _srvPort);
try
{
_sender.logMsg(new log(LogType.info, "server listen @port: " + _srvPort));
while (this.listening)
{
byte[] bytes = listener.Receive(ref groupEP);
//_sender.logMsg("udp_server receive MESSAGE from: " + groupEP.Address.ToString() + ":" + groupEP.Port.ToString());
if (bytes == null || bytes.Length == 0)
{
_sender.logMsg(new log(LogType.warning, groupEP.Address.ToString() + ":" + groupEP.Port.ToString() +
"udp_server receive EMPTY MESSAGE"));
}
Frame f = new Frame(new Client(groupEP.Address.ToString(), groupEP.Port.ToString()), bytes);
_sender.receive(f);
}
}
catch (System.Net.Sockets.SocketException se)
{
if (!se.ToString().Contains("Ein Blockierungsvorgang wurde durch einen Aufruf von WSACancelBlockingCall unterbrochen"))
{
_sender.logMsg(new log(LogType.fatal_error, "udp_server receive SocketException: " + se.ToString()));
}
}
catch (Exception e)
{
_sender.logMsg(new log(LogType.fatal_error, "udp_server receive EXEPTION: " + e.ToString()));
}
finally
{
listener.Close();
_sender.logMsg(new log(LogType.fatal_error, "STOP udp_server"));
}
}
}
