public static void AcceptCallback(IAsyncResult ar) { try { // Signal the main thread to continue. allDone.Set(); if (Form.runServer != true) { return; } // Get the socket that handles the client request. Socket listener = (Socket)ar.AsyncState; Socket handler = listener.EndAccept(ar); // Create the state object. StateObject state = new StateObject(); state.workSocket = handler; EtherHandler eh = (EtherHandler)Form.commHandler; eh.CSocketHandler = handler; handler.BeginReceive(state.buffer, 0, StateObject.BufferSize, 0, new AsyncCallback(ReadCallback), state); if (handler.Connected) { Form.Dispatcher.Invoke(new UpdateTextDelegate(Form.DisplayText), recvTab.CommRxList, "클라이언트 연결!!"); } } catch (SocketException ex) { throw ex; //Form.Dispatcher.Invoke(new UpdateTextDelegate(Form.DisplayText), Form.SocketRxList, ex.Message); } }
public static void ReadCallback(IAsyncResult ar) { String content = String.Empty; // Retrieve the state object and the handler socket // from the asynchronous state object. StateObject state = (StateObject)ar.AsyncState; Socket handler = state.workSocket; EtherHandler eh = (EtherHandler)Form.commHandler; eh.CSocketHandler = handler; try { if (handler != null) { if (handler.Connected) { // Read data from the client socket. int bytesRead = handler.EndReceive(ar); if (bytesRead > 0) { // There might be more data, so store the data received so far. //state.sb.Append(Encoding.ASCII.GetString( // state.buffer, 0, bytesRead)); // Check for end-of-file tag. If it is not there, read // more data. //string str = string.Empty; int cnt = 0; StringBuilder sb = new StringBuilder(); foreach (byte b in state.buffer) { sb.Append(string.Format("[" + "{0:x2}" + "]", b)); cnt++; if (cnt == bytesRead) { break; } } Form.Dispatcher.Invoke(() => { //code 로 메시지 확인 switch (state.buffer[Frame.Code]) { case Code.ACK: recvTab.SeqNum = (int)state.buffer[Frame.Seq]; ///전송연번 업데이트 break; case Code.NACK: recvTab.SeqNum = (int)state.buffer[Frame.Seq]; ///전송연번 업데이트 //추후 재전송 로직 추가 break; case Code.STATUS_RES: ///상태정보 수신 { recvTab.SeqNum = (int)state.buffer[Frame.Seq]; ///전송연번 업데이트 //ACK를 보내줌. ProcItem item = null; sndTab.MakeFrame(Code.ACK, out byte[] data, Form.comm, ref item); Send(data); } break; case Code.VIO_CONFIRM_REQ: ///위반확인요구 수신 { recvTab.SeqNum = (int)state.buffer[Frame.Seq]; ///전송연번 업데이트 //ACK를 보내줌. //sndTab.MakeEtherFrame(Code.ACK, out byte[] data); //Send(handler, data); int nCopy = Marshal.SizeOf(typeof(PACKET_VIO_REQUEST)); byte[] _cpyArray = new byte[nCopy]; Array.Copy(state.buffer, Frame.Data, _cpyArray, 0, nCopy); //위반확인응답을 보내줌. PACKET_VIO_REQUEST pVioReq = (PACKET_VIO_REQUEST)PacketMethods.ByteToStructure(_cpyArray, typeof(PACKET_VIO_REQUEST)); if (pVioReq.imgStatus == 0x00) { recvTab.triggerStatus.Text = "정상"; } else { recvTab.triggerStatus.Text = "비정상"; } ProcItem pItem = new ProcItem((uint)sndTab.pcComboBox.SelectedIndex + 1); pItem.seq = state.buffer[Frame.Seq]; pItem.vioNum = pVioReq.imagNum; sndTab.procList.Add(pItem); /// 영상번호 업데이트 recvTab.imageNum.Text = pVioReq.imagNum.ToString(); if (sndTab.syncMethod.SelectedIndex == 1) { int setByteOrder = sndTab.ByteOrder.SelectedIndex; sndTab.VioNumber = pVioReq.imagNum; byte[] cvtVioNum = BitConverter.GetBytes((short)sndTab.VioNumber); if (setByteOrder == 1) // Big endian { cvtVioNum = cvtVioNum.Reverse().ToArray(); sndTab.VioNumber = BitConverter.ToInt16(cvtVioNum, 0); } } //위반확인자동응답 체크 시 전송을 수행함. if (othTab.autoVioSendCheck.IsChecked == true) { int maxLoop = sndTab.pcComboBox.SelectedIndex + 1; uint saveProcNum = sndTab.ProcNumber1; for (sndTab.cycleNum = 1; sndTab.cycleNum <= maxLoop; sndTab.cycleNum++) { if (othTab.cnfResTypeComboBox.SelectedIndex == 0) { if (sndTab.MakeFrame(Code.VIO_CONFIRM_RES, out byte[] data, ((MainWindow)System.Windows.Application.Current.MainWindow).comm, ref pItem) == true) { ((MainWindow)System.Windows.Application.Current.MainWindow).SendData(data, data.Length); } } else { //신규응답으로 보낸다. if (sndTab.MakeFrame(Code.VIO_CONFIRM_RES_N, out byte[] data, ((MainWindow)System.Windows.Application.Current.MainWindow).comm, ref pItem) == true)