System.Net.NetworkInformation.NetworkChange.CreateSocket C# (CSharp) Method

        private static void CreateSocket()
        {
            Debug.Assert(s_socket == 0, "s_socket != 0, must close existing socket before opening another.");
            int newSocket;
            Interop.Error result = Interop.Sys.CreateNetworkChangeListenerSocket(out newSocket);
            if (result != Interop.Error.SUCCESS)
            {
                string message = Interop.Sys.GetLastErrorInfo().GetErrorMessage();
                throw new NetworkInformationException(message);
            }

            s_socket = newSocket;
            Task.Factory.StartNew(s => LoopReadSocket((int)s), s_socket,
                CancellationToken.None, TaskCreationOptions.LongRunning, TaskScheduler.Default);
        }