System.Net.Sockets.TcpListener.Pending C# (CSharp) Méthode

        public bool Pending()
        {
            if (!_active)
            {
                throw new InvalidOperationException(SR.net_stopped);
            }

            return _serverSocket.Poll(0, SelectMode.SelectRead);
        }

        /// <summary>
        /// This method will constantly run as a thread. It currently sends a multicast to the network every second, informing
        /// computers on the network that it is there. When a client sees this, it will send a message to the server and the client
        /// will be added to the clients list.
        /// </summary>
        public static void AddClients()
        {
            clients = new List<ClientThread>();
            TcpListener serverSocket = new TcpListener(IPAddress.Any, 8888);
            serverSocket.Start();

            while (true)
            {
                TcpClient tempClientSocket = new TcpClient();
                tempClientSocket.ReceiveTimeout = 300;

                SendMulticast();

                //Check and see if a computer is trying to connect.
                //If not, then sleep, and resend multicast in a second
                if (serverSocket.Pending())
                {
                    tempClientSocket = serverSocket.AcceptTcpClient();
                    ClientThread c = new ClientThread(tempClientSocket,null);
                    clients.Add(c);
                    Console.WriteLine("Connected to " + c.GetClientIP() + " :: "+c.GetPort());
                }
                else {
                    Thread.Sleep(1000); //Sleep for a second, before sending the next multicast.
                }
            }
        }