Various socket client changes

CryptoExchange.Net/Sockets/UpdateSubscription.cs

@@ -0,0 +1,42 @@
+using System;
+using System.Threading.Tasks;
+
+namespace CryptoExchange.Net.Sockets
+{
+    public class UpdateSubscription
+    {
+        private SocketSubscription subscription;
+
+        /// <summary>
+        /// Event when the connection is lost
+        /// </summary>
+        public event Action ConnectionLost
+        {
+            add => subscription.ConnectionLost += value;
+            remove => subscription.ConnectionLost -= value;
+        }
+
+        /// <summary>
+        /// Event when the connection is restored. Timespan parameter indicates the time the socket has been offline for before reconnecting
+        /// </summary>
+        public event Action<TimeSpan> ConnectionRestored
+        {
+            add => subscription.ConnectionRestored += value;
+            remove => subscription.ConnectionRestored -= value;
+        }
+
+        public UpdateSubscription(SocketSubscription sub)
+        {
+            subscription = sub;
+        }
+
+        /// <summary>
+        /// Close the subscription
+        /// </summary>
+        /// <returns></returns>
+        public async Task Close()
+        {
+            await subscription.Close();
+        }
+    }
+}