NLog.TcpClientSocket.onDisconnected C# (CSharp) Метод

        void onDisconnected(IAsyncResult ar)
        {
            var socket = (Socket)ar.AsyncState;
            socket.EndDisconnect(ar);
            socket.Close();
            _socket = null;
            _log.Debug("Disconnected.");
            triggerOnDisconnect();
        }