Shadowsocks.Util.Sockets.WrappedSocket.OnTcpConnectCompleted C# (CSharp) Méthode

        private void OnTcpConnectCompleted(object sender, SocketAsyncEventArgs args)
        {
            using (args)
            {
                args.Completed -= OnTcpConnectCompleted;
                var token = (TcpUserToken) args.UserToken;

                if (args.SocketError != SocketError.Success)
                {
                    var ex = args.ConnectByNameError ?? new SocketException((int) args.SocketError);

                    var r = new FakeAsyncResult()
                    {
                        AsyncState = token.AsyncState,
                        InternalException = ex
                    };

                    token.Callback(r);
                }
                else
                {
                    var lockTaken = false;
                    if (!_socketSyncLock.IsHeldByCurrentThread)
                    {
                        _socketSyncLock.TryEnter(ref lockTaken);
                    }
                    try
                    {
                        if (Connected)
                        {
                            args.ConnectSocket.FullClose();
                        }
                        else
                        {
                            _activeSocket = args.ConnectSocket;
                            if (_disposed)
                            {
                                _activeSocket.FullClose();
                            }

                            var r = new FakeAsyncResult()
                            {
                                AsyncState = token.AsyncState
                            };
                            token.Callback(r);
                        }
                    }
                    finally
                    {
                        if (lockTaken)
                        {
                            _socketSyncLock.Exit();
                        }
                    }
                }
            }
        }