make dlna project portable

MediaBrowser.Model/Net/ISocketFactory.cs

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+
+namespace MediaBrowser.Model.Net
+{
+    /// <summary>
+    /// Implemented by components that can create a platform specific UDP socket implementation, and wrap it in the cross platform <see cref="IUdpSocket"/> interface.
+    /// </summary>
+    public interface ISocketFactory
+	{
+
+		/// <summary>
+		/// Createa a new unicast socket using the specified local port number.
+		/// </summary>
+		/// <param name="localPort">The local port to bind to.</param>
+		/// <returns>A <see cref="IUdpSocket"/> implementation.</returns>
+		IUdpSocket CreateUdpSocket(int localPort);
+
+		/// <summary>
+		/// Createa a new multicast socket using the specified multicast IP address, multicast time to live and local port.
+		/// </summary>
+		/// <param name="ipAddress">The multicast IP address to bind to.</param>
+		/// <param name="multicastTimeToLive">The multicast time to live value. Actually a maximum number of network hops for UDP packets.</param>
+		/// <param name="localPort">The local port to bind to.</param>
+		/// <returns>A <see cref="IUdpSocket"/> implementation.</returns>
+		IUdpSocket CreateUdpMulticastSocket(string ipAddress, int multicastTimeToLive, int localPort);
+	}
+}

MediaBrowser.Model/Net/IUdpSocket.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MediaBrowser.Model.Net
+{
+    /// <summary>
+    /// Provides a common interface across platforms for UDP sockets used by this SSDP implementation.
+    /// </summary>
+    public interface IUdpSocket : IDisposable
+	{
+		/// <summary>
+		/// Waits for and returns the next UDP message sent to this socket (uni or multicast).
+		/// </summary>
+		/// <returns></returns>
+		Task<ReceivedUdpData> ReceiveAsync();
+
+        /// <summary>
+        /// Sends a UDP message to a particular end point (uni or multicast).
+        /// </summary>
+        /// <param name="messageData">The data to send.</param>
+        /// <param name="endPoint">The <see cref="IpEndPointInfo"/> providing the address and port to send to.</param>
+        Task SendTo(byte[] messageData, IpEndPointInfo endPoint);
+	}
+}

MediaBrowser.Model/Net/IpEndPointInfo.cs

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+using System;
+
+namespace MediaBrowser.Model.Net
+{
+    public class IpEndPointInfo
+    {
+        public IpAddressInfo IpAddress { get; set; }
+
+        public int Port { get; set; }
+
+        public override string ToString()
+        {
+            var ipAddresString = IpAddress == null ? string.Empty : IpAddress.ToString();
+
+            return ipAddresString + ":" + this.Port.ToString();
+        }
+    }
+}

MediaBrowser.Model/Net/ReceivedUdpData.cs

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+
+namespace MediaBrowser.Model.Net
+{
+    /// <summary>
+    /// Used by the sockets wrapper to hold raw data received from a UDP socket.
+    /// </summary>
+    public sealed class ReceivedUdpData
+	{
+		/// <summary>
+		/// The buffer to place received data into.
+		/// </summary>
+		public byte[] Buffer { get; set; }
+
+		/// <summary>
+		/// The number of bytes received.
+		/// </summary>
+		public int ReceivedBytes { get; set; }
+
+        /// <summary>
+        /// The <see cref="IpEndPointInfo"/> the data was received from.
+        /// </summary>
+        public IpEndPointInfo ReceivedFrom { get; set; }
+	}
+}