Add GPL modules

MediaBrowser.Model/Net/ISocket.cs

@@ -0,0 +1,28 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.Threading;
+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 ISocket : IDisposable
+    {
+        IpAddressInfo LocalIPAddress { get; }
+
+        Task<SocketReceiveResult> ReceiveAsync(byte[] buffer, int offset, int count, CancellationToken cancellationToken);
+
+        int Receive(byte[] buffer, int offset, int count);
+
+        IAsyncResult BeginReceive(byte[] buffer, int offset, int count, AsyncCallback callback);
+        SocketReceiveResult EndReceive(IAsyncResult result);
+
+        /// <summary>
+        /// Sends a UDP message to a particular end point (uni or multicast).
+        /// </summary>
+        Task SendToAsync(byte[] buffer, int offset, int bytes, IpEndPointInfo endPoint, CancellationToken cancellationToken);
+    }
+}