static void RunCallback(IAnswerCallback callback, int errorCode)
{
ClientEngine.RunTask(() => {
callback.OnException(null, errorCode);
});
}
private void SendCompleted(object sender, SocketAsyncEventArgs e)
{
if (e.SocketError != SocketError.Success && !beginClosing)
{
CloseByException("Send data to " + endpoint + " failed. Due to SocketError: " + e.SocketError, null, false);
return;
}
currSendOffset += e.BytesTransferred;
if (currSendOffset == currSendBuffer.Length)
{
currSendOffset = 0;
lock (interLocker)
{
if (sendQueue.Count > 0)
{
currSendBuffer = sendQueue.Dequeue();
}
else
{
currSendBuffer = null;
return;
}
}
}
if (beginClosing)
{
return;
}
sendAsyncEventArgs.SetBuffer(currSendBuffer, currSendOffset, currSendBuffer.Length - currSendOffset);
try
{
if (!socket.SendAsync(sendAsyncEventArgs))
{
recursionDeepOfSendFunction += 1;
if (recursionDeepOfSendFunction <= MaxRecursionDeepOfSendFunction)
{
SendCompleted(socket, sendAsyncEventArgs);
}
else
{
recursionDeepOfSendFunction = 0;
ClientEngine.RunTask(() => {
SendCompleted(socket, sendAsyncEventArgs);
});
}
}
}
catch (ObjectDisposedException ex)
{
CloseByException("Send data to " + endpoint + " exception. Connection is broken.", ex, true);
}
catch (SocketException ex)
{
CloseByException("Send data to " + endpoint + " exception. Access socket is error.", ex, false);
}
catch (InvalidOperationException)
{
//-- DO nothings
}
}
private void ConnectCompleted(object sender, SocketAsyncEventArgs e)
{
int unityDisCompliantSign = System.Threading.Interlocked.Exchange(ref connectCompletedSignForUnityIl2CPPDisCompliantImplement, 1);
if (unityDisCompliantSign != 0)
{
if (e.SocketError != SocketError.Success)
{
lock (interLocker)
{
if (status == TCPClient.ClientStatus.Connecting)
{
requireClose = true;
return;
}
else if (status == TCPClient.ClientStatus.Closed)
{
return;
}
}
//-- status == TCPClient.ClientStatus.Connected
Close();
}
return;
}
if (e.SocketError != SocketError.Success)
{
if (errorRecorder != null && !requireClose)
{
errorRecorder.RecordError("Connect to " + endpoint + " failed. Due to SocketError: " + e.SocketError);
}
CloseWhenConnectingError();
return;
}
if (requireClose)
{
CallConnectionConnectedDelegate(0, false, "Connecting cannel event exception. Remote endpoint: " + endpoint + ".");
connectionCloseDelegate = null;
Close();
return;
}
receiveAsyncEventArgs.SetBuffer(receiver.buffer, receiver.offset, receiver.requireLength - receiver.offset);
connectionId = socket.Handle.ToInt64();
CallConnectionConnectedDelegate(connectionId, true, "Connected event exception. Remote endpoint: " + endpoint + ".");
lock (interLocker)
{
status = TCPClient.ClientStatus.Connected;
}
if (requireClose)
{
Close();
return;
}
if (ClientEngine.RegisterConnectedConnection(this) == false)
{
Close();
return;
}
CheckSending();
try
{
if (!socket.ReceiveAsync(receiveAsyncEventArgs))
{
ReceiveCompleted(socket, receiveAsyncEventArgs);
}
}
catch (ObjectDisposedException ex)
{
CloseByException("Receive data from " + endpoint + " exception. Connection is broken.", ex, true);
}
catch (SocketException ex)
{
CloseByException("Receive data from " + endpoint + " exception. Access socket is error.", ex, false);
}
catch (InvalidOperationException)
{
//-- Do nothings
}
}
private void ReceiveCompleted(object sender, SocketAsyncEventArgs e)
{
if (e.SocketError != SocketError.Success && !beginClosing)
{
CloseByException("Receive data from " + endpoint + " failed. Due to SocketError: " + e.SocketError, null, false);
return;
}
if (e.BytesTransferred == 0)
{
Close();
return;
}
receiver.offset += e.BytesTransferred;
if (receiver.offset == receiver.requireLength)
{
Quest quest;
Answer answer;
try
{
receiver.Done(out quest, out answer);
}
catch (ReceiverErrorMessageException ex)
{
CloseByException("Processing received data from " + endpoint + " error: " + ex.Message + ". Connection will be closed.", null, false);
return;
}
catch (Exception ex)
{
CloseByException("Processing received data from " + endpoint + " exception. Connection will be closed.", ex, false);
return;
}
if (answer != null)
{
DealAnswer(answer);
}
else if (quest != null)
{
DealQuest(quest);
}
}
if (beginClosing)
{
return;
}
receiveAsyncEventArgs.SetBuffer(receiver.buffer, receiver.offset, receiver.requireLength - receiver.offset);
try
{
if (!socket.ReceiveAsync(receiveAsyncEventArgs))
{
recursionDeepOfReceiveFunction += 1;
if (recursionDeepOfReceiveFunction <= MaxRecursionDeepOfReceiveFunction)
{
ReceiveCompleted(socket, receiveAsyncEventArgs);
}
else
{
recursionDeepOfReceiveFunction = 0;
ClientEngine.RunTask(() => {
ReceiveCompleted(socket, receiveAsyncEventArgs);
});
}
}
}
catch (ObjectDisposedException ex)
{
CloseByException("Receive data from " + endpoint + " exception. Connection is broken.", ex, true);
}
catch (SocketException ex)
{
CloseByException("Receive data from " + endpoint + " exception. Access socket is error.", ex, false);
}
catch (InvalidOperationException)
{
//-- Do nothings
}
}
//----------------[ I/O Operations ]-----------------------//
public void AsyncConnect(int connectTimeout)
{
lock (interLocker)
{
if (status != TCPClient.ClientStatus.Closed)
{
return;
}
status = TCPClient.ClientStatus.Connecting;
}
if (ClientEngine.RegisterConnectingConnection(this, connectTimeout) == false)
{
lock (interLocker)
{
status = TCPClient.ClientStatus.Closed;
beginClosing = true;
}
CallConnectionConnectedDelegate(0, false, "Connecting cannel event exception. Remote endpoint: " + endpoint + ".");
connectionCloseDelegate = null;
socket.Close();
return;
}
connectionId = 0;
receiver = new StandardReceiver();
sendAsyncEventArgs = new SocketAsyncEventArgs {
RemoteEndPoint = endpoint
};
sendAsyncEventArgs.Completed += IO_Completed;
recursionDeepOfReceiveFunction = 0;
recursionDeepOfSendFunction = 0;
try
{
if (!socket.ConnectAsync(receiveAsyncEventArgs)) //-- Synchronous
{
ConnectCompleted(socket, receiveAsyncEventArgs);
}
else
{
lock (interLocker)
{
if (requireClose)
{
CannelConnecting();
}
else
{
connectingCanBeCannelled = true;
}
}
}
}
catch (SocketException e)
{
if (errorRecorder != null)
{
errorRecorder.RecordError("Connect to " + endpoint + " failed.", e);
}
CloseWhenConnectingError();
}
catch (ObjectDisposedException e)
{
if (errorRecorder != null)
{
errorRecorder.RecordError("Connect to " + endpoint + " failed.", e);
}
CloseWhenConnectingError();
}
}
