Merge branch 'master' into fixes/bidiMirrors

src/Avalonia.Base/Rendering/Composition/Compositor.cs

@@ -47,11 +47,7 @@ namespace Avalonia.Rendering.Composition
         {
             Loop = loop;
             _server = new ServerCompositor(loop, gpu, _batchObjectPool, _batchMemoryPool);
-            _commit = () =>
-            {
-                Console.WriteLine("Dispatcher:Commit");
-                Commit();
-            };
+            _commit = () => Commit();
 
             DefaultEasing = new CubicBezierEasing(new Point(0.25f, 0.1f), new Point(0.25f, 1f));
         }

src/Windows/Avalonia.Win32/WinRT/Composition/WinUICompositorConnection.cs

@@ -120,10 +120,14 @@ namespace Avalonia.Win32.WinRT.Composition
 
         private void RunLoop()
         {
+            var cts = new CancellationTokenSource();
+            AppDomain.CurrentDomain.ProcessExit += (sender, args) =>
+                cts.Cancel();
+                
             using (var act = _compositor5.RequestCommitAsync())
                 act.SetCompleted(new RunLoopHandler(this));
 
-            while (true)
+            while (!cts.IsCancellationRequested)
             {
                 UnmanagedMethods.GetMessage(out var msg, IntPtr.Zero, 0, 0);
                 lock (_pumpLock)