From 50f066579a96c6f2b2a4c47524c684e1ef3dfdf0 Mon Sep 17 00:00:00 2001
From: Pavel Krymets <pavel@krymets.com>
Date: Thu, 8 Sep 2016 08:46:31 -0700
Subject: [PATCH] Use TaskCache class from
 Microsoft.Extensions.TaskCache.Sources (#257)

Instead of Task.FromResult(0)
---
 .../AuthenticationHandler.cs                    | 17 +++++++++--------
 .../project.json                                |  4 ++++
 2 files changed, 13 insertions(+), 8 deletions(-)

diff --git a/src/Microsoft.AspNetCore.Server.IISIntegration/AuthenticationHandler.cs b/src/Microsoft.AspNetCore.Server.IISIntegration/AuthenticationHandler.cs
index ff2196771a..eb6b9ad155 100644
--- a/src/Microsoft.AspNetCore.Server.IISIntegration/AuthenticationHandler.cs
+++ b/src/Microsoft.AspNetCore.Server.IISIntegration/AuthenticationHandler.cs
@@ -9,6 +9,7 @@ using Microsoft.AspNetCore.Builder;
 using Microsoft.AspNetCore.Http;
 using Microsoft.AspNetCore.Http.Authentication;
 using Microsoft.AspNetCore.Http.Features.Authentication;
+using Microsoft.Extensions.Internal;
 
 namespace Microsoft.AspNetCore.Server.IISIntegration
 {
@@ -49,8 +50,8 @@ namespace Microsoft.AspNetCore.Server.IISIntegration
             {
                 return PriorHandler.AuthenticateAsync(context);
             }
-            
-            return Task.FromResult(0);
+
+            return TaskCache.CompletedTask;
         }
 
         public Task ChallengeAsync(ChallengeContext context)
@@ -86,8 +87,8 @@ namespace Microsoft.AspNetCore.Server.IISIntegration
             {
                 return PriorHandler.ChallengeAsync(context);
             }
-            
-            return Task.FromResult(0);
+
+            return TaskCache.CompletedTask;
         }
 
         public void GetDescriptions(DescribeSchemesContext context)
@@ -110,8 +111,8 @@ namespace Microsoft.AspNetCore.Server.IISIntegration
             {
                 return PriorHandler.SignInAsync(context);
             }
-            
-            return Task.FromResult(0);
+
+            return TaskCache.CompletedTask;
         }
 
         public Task SignOutAsync(SignOutContext context)
@@ -121,8 +122,8 @@ namespace Microsoft.AspNetCore.Server.IISIntegration
             {
                 return PriorHandler.SignOutAsync(context);
             }
-            
-            return Task.FromResult(0);
+
+            return TaskCache.CompletedTask;
         }
 
         private bool ShouldHandleScheme(string authenticationScheme)
diff --git a/src/Microsoft.AspNetCore.Server.IISIntegration/project.json b/src/Microsoft.AspNetCore.Server.IISIntegration/project.json
index 41ba2e0795..405e66b6e4 100644
--- a/src/Microsoft.AspNetCore.Server.IISIntegration/project.json
+++ b/src/Microsoft.AspNetCore.Server.IISIntegration/project.json
@@ -29,6 +29,10 @@
     "Microsoft.Extensions.SecurityHelper.Sources": {
       "type": "build",
       "version": "1.1.0-*"
+    },
+    "Microsoft.Extensions.TaskCache.Sources": {
+      "version": "1.1.0-*",
+      "type": "build"
     }
   },
   "frameworks": {