[release/8.0] Readd DiagnosticSource to KestrelServerImpl

src/Servers/Kestrel/Core/src/Internal/KestrelServerImpl.cs

@@ -39,8 +39,9 @@ public KestrelServerImpl(
         IEnumerable<IMultiplexedConnectionListenerFactory> multiplexedFactories,
         IHttpsConfigurationService httpsConfigurationService,
         ILoggerFactory loggerFactory,
+        DiagnosticSource? diagnosticSource,
         KestrelMetrics metrics)
-        : this(transportFactories, multiplexedFactories, httpsConfigurationService, CreateServiceContext(options, loggerFactory, diagnosticSource: null, metrics))
+        : this(transportFactories, multiplexedFactories, httpsConfigurationService, CreateServiceContext(options, loggerFactory, diagnosticSource, metrics))
     {
     }
 
@@ -111,7 +112,8 @@ private static ServiceContext CreateServiceContext(IOptions<KestrelServerOptions
 
     public KestrelServerOptions Options => ServiceContext.ServerOptions;
 
-    private ServiceContext ServiceContext { get; }
+    // Internal for testing
+    internal ServiceContext ServiceContext { get; }
 
     private KestrelTrace Trace => ServiceContext.Log;
 

src/Servers/Kestrel/Core/src/KestrelServer.cs

@@ -36,6 +36,7 @@ public KestrelServer(IOptions<KestrelServerOptions> options, IConnectionListener
             Array.Empty<IMultiplexedConnectionListenerFactory>(),
             new SimpleHttpsConfigurationService(),
             loggerFactory,
+            diagnosticSource: null,
             new KestrelMetrics(new DummyMeterFactory()));
     }
 

src/Servers/Kestrel/Core/test/KestrelServerTests.cs

@@ -308,6 +308,7 @@ private static KestrelServerImpl CreateKestrelServer(
             multiplexedFactories,
             httpsConfigurationService,
             loggerFactory ?? new LoggerFactory(new[] { new KestrelTestLoggerProvider() }),
+            diagnosticSource: null,
             metrics ?? new KestrelMetrics(new TestMeterFactory()));
     }
 

src/Servers/Kestrel/Kestrel/test/WebHostBuilderKestrelExtensionsTests.cs

@@ -2,10 +2,12 @@
 // The .NET Foundation licenses this file to you under the MIT license.
 
 using System.Collections;
+using System.IO.Pipelines;
 using Microsoft.AspNetCore.Connections;
 using Microsoft.AspNetCore.Hosting;
 using Microsoft.AspNetCore.Hosting.Server;
 using Microsoft.AspNetCore.Server.Kestrel.Core;
+using Microsoft.AspNetCore.Server.Kestrel.Core.Internal.Infrastructure;
 using Microsoft.AspNetCore.Server.Kestrel.Transport.NamedPipes.Internal;
 using Microsoft.AspNetCore.Server.Kestrel.Transport.Sockets;
 using Microsoft.Extensions.DependencyInjection;
@@ -107,6 +109,11 @@ public void ServerIsKestrelServerImpl()
             .UseKestrel()
             .Configure(app => { });
 
-        Assert.IsType<KestrelServerImpl>(hostBuilder.Build().Services.GetService<IServer>());
+        var server = Assert.IsType<KestrelServerImpl>(hostBuilder.Build().Services.GetService<IServer>());
+
+        Assert.NotNull(server.ServiceContext.DiagnosticSource);
+        Assert.IsType<KestrelMetrics>(server.ServiceContext.Metrics);
+        Assert.Equal(PipeScheduler.ThreadPool, server.ServiceContext.Scheduler);
+        Assert.Equal(TimeProvider.System, server.ServiceContext.TimeProvider);
     }
 }