///
/// 異步連接回調函數
///
///
void connectedCallback(IAsyncResult iar)
{
#region <remarks>
/// 1、置位IsconnectSuccess
#endregion </remarks>
lock (lockObj_IsConnectSuccess)
{
Socket client = (Socket)iar.AsyncState;
try
{
client.EndConnect(iar);
IsconnectSuccess = true;
ConnReport.On_Connection_Connected("Connected");
StartKeepAlive(); //開始KeppAlive檢測
}
catch (Exception e)
{
//Console.WriteLine(e.ToString());
SockErrorStr = e.ToString();
IsconnectSuccess = false;
ConnReport.On_Connection_Disconnected(e.Message);
}
finally
{
TimeoutObject.Set();
}
}
}
void IConnectionReport.On_Connection_Disconnected(object MsgObj)
{
this._IsConnected = false;
this.Status = "Disconnected";
this.processState = DeviceController.PROCESS_STATE_UNKNOWN;
if (ConnReport != null)
{
ConnReport.On_Connection_Disconnected(_Config);
}
}
private void OnReceiveCallback(IAsyncResult ar)
{
try
{
Socket peerSock = (Socket)ar.AsyncState;
int BytesRead = peerSock.EndReceive(ar);
if (BytesRead > 0)
{
byte[] tmp = new byte[BytesRead];
Array.ConstrainedCopy(buffer, 0, tmp, 0, BytesRead);
if (socketDataArrival != null)
{
socketDataArrival(tmp);
}
}
else//對端gracefully關閉一個連接
{
if (theSocket.Connected)//上次socket的狀態
{
if (socketDisconnected != null)
{
//1-重連
socketDisconnected();
//2-退出，不再執行BeginReceive
return;
}
}
}
//此處buffer似乎要清空--待實現 zq
for (int i = 0; i < buffer.Length; i++)// Initial buffer
{
buffer[i] = 0;
}
theSocket.BeginReceive(buffer, 0, buffer.Length, SocketFlags.None, new AsyncCallback(OnReceiveCallback), theSocket);
}
catch (Exception ex)
{
if (socketDisconnected != null)
{
IsconnectSuccess = false;
theSocket.Disconnect(true);
ConnReport.On_Connection_Disconnected("Disconnected");
//socketDisconnected(); //Keepalive檢測網線斷開引發的異常在這裏捕獲
return;
}
}
}
public void Close()
{
try
{
if (tcpClient != null)
{
if (tcpClient.Connected)
{
tcpClient.Close();
ConnReport.On_Connection_Disconnected("Close");
}
}
}
catch (Exception e)
{
logger.Error("[" + Config.DeviceName + "] 關閉異常" + e.StackTrace);
ConnReport.On_Connection_Error("[" + Config.DeviceName + "] " + e.Message + "\n" + e.StackTrace);
}
}
//private void CheckAvailable()
//{
// while (true)
// {
// bool CheckResult = SocketConnected(SckSPort);
// if (!CheckResult)
// {
// ConnReport.On_Connection_Disconnected("(" + RmIp + ":" + SPort + ") is disconnected.");
// break;
// }
// SpinWait.SpinUntil(() => false, 500);
// }
//}
//bool SocketConnected(Socket s)
//{
// bool part1 = s.Poll(1000, SelectMode.SelectRead);
// bool part2 = (s.Available == 0);
// if (part1 && part2)
// return false;
// else
// return true;
// //try
// //{
// // byte[] testByte = new byte[1];
// // //使用Peek測試連線是否仍存在
// // if (s.Connected && s.Poll(0, SelectMode.SelectRead))
// // {
// // return !(s.Receive(testByte, SocketFlags.Peek) == 0);
// // }
// // else
// // {
// // return true;
// // }
// //}
// //catch (SocketException se)
// //{
// // return false;
// //}
//}
private void SckSReceiveProc()
{
try
{
int IntAcceptData;
byte[] clientData = new byte[RDataLen];
while (true)
{
if (!SckSPort.Connected)
{
//logger.Error(Desc + " (" + RmIp + ":" + SPort + ") is disconnected.");
ConnReport.On_Connection_Disconnected("(" + RmIp + ":" + SPort + ") is disconnected.");
break;
}
// 程式會被 hand 在此, 等待接收來自 Server 端傳來的資料
IntAcceptData = SckSPort.Receive(clientData);
// 往下就自己寫接收到來自Server端的資料後要做什麼事唄~^^”
string S = Encoding.Default.GetString(clientData, 0, IntAcceptData);
//Console.WriteLine(S);
//logger.Info("[Rev<--]" + S.Replace("\n", "") + "(From " + Desc + " " + RmIp + ":" + SPort + ")");
if (!S.Trim().Equals(""))
{
ThreadPool.QueueUserWorkItem(new WaitCallback(ConnReport.On_Connection_Message), S);
//ConnReport.On_Connection_Message(S);
}
}
}
catch (Exception e)
{
//logger.Error("(From " + RmIp + ":" + SPort + ")" + e.Message + "\n" + e.StackTrace);
ConnReport.On_Connection_Error("SckSReceiveProc (" + RmIp + ":" + SPort + ")" + e.Message + "\n" + e.StackTrace);
}
}
public void Close()
{
port.Close();
Connected = false;
ConnReport.On_Connection_Disconnected("Close");
}