private static void SendCallback(IAsyncResult ar)
{
var serverTransport = (TcpTransport)ar.AsyncState;
if (serverTransport == null)
{
return;
}
if (serverTransport._state != 1)
{
return;
}
int sendCount = 0;
try
{
sendCount = serverTransport._socket.EndSend(ar);
}
catch (Exception ex)
{
LogAgent.Error("tcpTransport SendCallback,socket EndSend error", ex);
}
if (sendCount <= 0)
{
serverTransport.Close();
return;
}
}
private void CheckConnection()
{
var observerList = _observerDictionary.Keys.ToList();
foreach (var observer in observerList)
{
try
{
observer.CheckConnection();
}
catch (Exception ex)
{
LogAgent.Error(ex.Message, ex);
}
}
}
public void Send(byte[] sendBuffer, int messageByteCount)
{
if (_state != 1)
{
throw new Exception("tcpTransport send,state error");
}
try
{
_socket.Send(sendBuffer, messageByteCount, SocketFlags.None);
}
catch (Exception ex)
{
Close();
LogAgent.Error("tcpTransport Send,socket Send error", ex);
throw;
}
}
public void SendAsync(byte[] sendBuffer, int messageByteCount)
{
if (_state != 1)
{
throw new Exception("tcpTransport SendAsync,state error");
}
try
{
_socket.BeginSend(sendBuffer, 0, messageByteCount, SocketFlags.None, SendCallback, this);
}
catch (Exception ex)
{
Close();
LogAgent.Error("tcpTransport SendAsync,socket BeginSend error", ex);
throw;
}
}
private void BeginNewReceive(bool isReset = false)
{
try
{
if (isReset)
{
_receiveProcessor.Reset();
}
_receiveProcessor.GetNextReceiveCallbackData(ref _tempReceiveCallbackData);
_socket.BeginReceive(_tempReceiveCallbackData.Buffer, _tempReceiveCallbackData.Offset, _tempReceiveCallbackData.Size, SocketFlags.None, ReceiveCallback, this);
}
catch (Exception ex)
{
LogAgent.Error("tcpTransport BeginNewReceive,socket BeginReceive error", ex);
Close();
throw;
}
}
private static void ReceiveCallback(IAsyncResult ar)
{
var tcpTransport = (TcpTransport)ar.AsyncState;
if (tcpTransport == null)
{
return;
}
if (tcpTransport._state != 1)
{
return;
}
int readCount = 0;
try
{
readCount = tcpTransport._socket.EndReceive(ar);
}
catch (Exception ex)
{
LogAgent.Error("tcpTransport ReceiveCallback,socket EndReceive error", ex);
}
if (readCount <= 0)
{
tcpTransport.Close();
return;
}
var receiveProcessor = tcpTransport._receiveProcessor;
try
{
var step = receiveProcessor.CheckCurrentStep(readCount);
if (step == -1)
{
throw new Exception("tcpTransport ReceiveCallback,receiveProcessor CheckCurrentStep error");
}
if (step == 0)
{
tcpTransport.BeginNewReceive(false);
return;
}
}
catch (Exception ex)
{
tcpTransport.Close();
LogAgent.Error("tcpTransport ReceiveCallback,tcpTransport BeginNewReceive error", ex);
return;
}
try
{
FrameData receiveData = receiveProcessor.GetCurrentReceiveData();
tcpTransport.BeginNewReceive(true);
tcpTransport.OnReceive(receiveData);
}
catch (Exception ex)
{
tcpTransport.Close();
LogAgent.Error("tcpTransport ReceiveCallback,tcpTransport BeginNewReceive error", ex);
return;
}
}