make dlna project portable

MediaBrowser.Model/Net/IUdpSocket.cs

@@ -0,0 +1,27 @@
+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);
+	}
+}