From d3cd128ca899e651862f16a1b074131f2312ee10 Mon Sep 17 00:00:00 2001
From: Jan Korf <jankorf91@gmail.com>
Date: Fri, 1 Feb 2019 17:01:02 +0100
Subject: [PATCH] Added exception event on socket subscription

---
 CryptoExchange.Net/SocketClient.cs               | 1 +
 CryptoExchange.Net/Sockets/SocketSubscription.cs | 6 ++++++
 CryptoExchange.Net/Sockets/UpdateSubscription.cs | 9 +++++++++
 3 files changed, 16 insertions(+)

diff --git a/CryptoExchange.Net/SocketClient.cs b/CryptoExchange.Net/SocketClient.cs
index 642328e..f2bb669 100644
--- a/CryptoExchange.Net/SocketClient.cs
+++ b/CryptoExchange.Net/SocketClient.cs
@@ -158,6 +158,7 @@ namespace CryptoExchange.Net
             catch(Exception ex)
             {
                 log.Write(LogVerbosity.Error, $"Socket {subscription.Socket.Id} Exception during message processing\r\nProcessor: {currentHandlerName}\r\nException: {ex}\r\nData: {data}");
+                subscription.InvokeExceptionHandler(ex);
             }
         }
 
diff --git a/CryptoExchange.Net/Sockets/SocketSubscription.cs b/CryptoExchange.Net/Sockets/SocketSubscription.cs
index a5911c0..3031c83 100644
--- a/CryptoExchange.Net/Sockets/SocketSubscription.cs
+++ b/CryptoExchange.Net/Sockets/SocketSubscription.cs
@@ -12,6 +12,7 @@ namespace CryptoExchange.Net.Sockets
     {
         public event Action ConnectionLost;
         public event Action<TimeSpan> ConnectionRestored;
+        public event Action<Exception> Exception;
 
         /// <summary>
         /// Message handlers for this subscription. Should return true if the message is handled and should not be distributed to the other handlers
@@ -145,6 +146,11 @@ namespace CryptoExchange.Net.Sockets
             }
         }
 
+        public void InvokeExceptionHandler(Exception e)
+        {
+            Exception(e);
+        }
+
         public async Task Close()
         {
             Socket.ShouldReconnect = false;
diff --git a/CryptoExchange.Net/Sockets/UpdateSubscription.cs b/CryptoExchange.Net/Sockets/UpdateSubscription.cs
index 7188679..ba872e9 100644
--- a/CryptoExchange.Net/Sockets/UpdateSubscription.cs
+++ b/CryptoExchange.Net/Sockets/UpdateSubscription.cs
@@ -25,6 +25,15 @@ namespace CryptoExchange.Net.Sockets
             remove => subscription.ConnectionRestored -= value;
         }
 
+        /// <summary>
+        /// Event when an exception happened
+        /// </summary>
+        public event Action<Exception> Exception
+        {
+            add => subscription.Exception += value;
+            remove => subscription.Exception -= value;
+        }
+
         /// <summary>
         /// The id of the socket
         /// </summary>