Amqp.Listener.ConnectionListener.TcpTransportListener.TcpTransportListener C# (CSharp) Метод

            public TcpTransportListener(ConnectionListener listener, string host, int port)
            {
                this.Listener = listener;

                List<IPAddress> addresses = new List<IPAddress>();
                IPAddress ipAddress;
                if (host.Equals("localhost", StringComparison.OrdinalIgnoreCase) ||
                    host.Equals(Environment.GetEnvironmentVariable("COMPUTERNAME"), StringComparison.OrdinalIgnoreCase) ||
                    host.Equals(Amqp.TaskExtensions.GetHostEntryAsync(string.Empty).Result.HostName, StringComparison.OrdinalIgnoreCase))
                {
                    if (Socket.OSSupportsIPv4)
                    {
                        addresses.Add(IPAddress.Any);
                    }

                    if (Socket.OSSupportsIPv6)
                    {
                        addresses.Add(IPAddress.IPv6Any);
                    }
                }
                else if (IPAddress.TryParse(host, out ipAddress))
                {
                    addresses.Add(ipAddress);
                }
                else
                {
                    addresses.AddRange(Amqp.TaskExtensions.GetHostAddressesAsync(host).GetAwaiter().GetResult());
                }

                this.listenSockets = new Socket[addresses.Count];
                for (int i = 0; i < addresses.Count; ++i)
                {
                    this.listenSockets[i] = new Socket(addresses[i].AddressFamily, SocketType.Stream, ProtocolType.Tcp) { NoDelay = true };
                    this.listenSockets[i].Bind(new IPEndPoint(addresses[i], port));
                    this.listenSockets[i].Listen(20);
                }
            }