From 982ab99b45c044952d3e060642fb56d12dbe994b Mon Sep 17 00:00:00 2001
From: Ben Adams <thundercat@illyriad.co.uk>
Date: Mon, 28 Dec 2015 23:02:41 +0000
Subject: [PATCH] Make callback adapters readonly

---
 .../Infrastructure/KestrelThread.cs                    | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/src/Microsoft.AspNet.Server.Kestrel/Infrastructure/KestrelThread.cs b/src/Microsoft.AspNet.Server.Kestrel/Infrastructure/KestrelThread.cs
index 4974ba7a9f..4769d62d6e 100644
--- a/src/Microsoft.AspNet.Server.Kestrel/Infrastructure/KestrelThread.cs
+++ b/src/Microsoft.AspNet.Server.Kestrel/Infrastructure/KestrelThread.cs
@@ -24,11 +24,11 @@ namespace Microsoft.AspNet.Server.Kestrel
         // otherwise it needs to wait till the next pass of the libuv loop
         private const int _maxLoops = 8;
 
-        private static Action<object, object> _threadCallbackAdapter = (callback, state) => ((Action<KestrelThread>)callback).Invoke((KestrelThread)state);
-        private static Action<object, object> _socketCallbackAdapter = (callback, state) => ((Action<SocketOutput>)callback).Invoke((SocketOutput)state);
-        private static Action<object, object> _tcsCallbackAdapter = (callback, state) => ((Action<TaskCompletionSource<int>>)callback).Invoke((TaskCompletionSource<int>)state);
-        private static Action<object, object> _listenerPrimaryCallbackAdapter = (callback, state) => ((Action<ListenerPrimary>)callback).Invoke((ListenerPrimary)state);
-        private static Action<object, object> _listenerSecondaryCallbackAdapter = (callback, state) => ((Action<ListenerSecondary>)callback).Invoke((ListenerSecondary)state);
+        private static readonly Action<object, object> _threadCallbackAdapter = (callback, state) => ((Action<KestrelThread>)callback).Invoke((KestrelThread)state);
+        private static readonly Action<object, object> _socketCallbackAdapter = (callback, state) => ((Action<SocketOutput>)callback).Invoke((SocketOutput)state);
+        private static readonly Action<object, object> _tcsCallbackAdapter = (callback, state) => ((Action<TaskCompletionSource<int>>)callback).Invoke((TaskCompletionSource<int>)state);
+        private static readonly Action<object, object> _listenerPrimaryCallbackAdapter = (callback, state) => ((Action<ListenerPrimary>)callback).Invoke((ListenerPrimary)state);
+        private static readonly Action<object, object> _listenerSecondaryCallbackAdapter = (callback, state) => ((Action<ListenerSecondary>)callback).Invoke((ListenerSecondary)state);
 
         private KestrelEngine _engine;
         private readonly IApplicationLifetime _appLifetime;