Пример #1
0
        public static void OnReceive(IAsyncResult ar)
        {
            try
            {
                IPEndPoint ipeSender = new IPEndPoint(IPAddress.Any, 0);
                EndPoint   epSender  = (EndPoint)ipeSender;

                serverSocket.EndReceiveFrom(ar, ref epSender);

                string strReceived = Encoding.UTF8.GetString(byteData);
                strReceived = strReceived.Substring(0, strReceived.IndexOf("\0"));

                string echo = ErrorManager.GetCurrentState(strReceived);
                if (echo != null)
                {
                    serverSocket.SendTo(Encoding.UTF8.GetBytes(echo), epSender);
                }

                Debug.WriteLine(
                    string.Format("UDPServer.OnReceive  -> received = {0}"
                                  , strReceived));

                Array.Clear(byteData, 0, byteData.Length);
                //int i = strReceived.IndexOf("\0");
                //Manualstate.WaitOne();
                //Manualstate.Reset();
                ////todo here should deal with the received string
                //sbuilder.Append(strReceived.Substring(0, i));
                //Manualstate.Set();

                //Start listening to the message send by the user
                serverSocket.BeginReceiveFrom(byteData, 0, byteData.Length, SocketFlags.None, ref epSender,
                                              new AsyncCallback(OnReceive), epSender);
            }
            catch (Exception ex)
            {
                Debug.WriteLine(
                    string.Format("UDPServer.OnReceive  -> error = {0}"
                                  , ex.Message));
            }
        }