Prevent .NET from randomly calling WndProc in RequestCompositionBatchCommitAsync (#16804)

kekekeks · web-flow · commit d6ecd36f7b9f · 2024-08-26T15:22:35.000Z
This method isn't reentrancy-friendly
diff --git a/src/Avalonia.Base/Rendering/Composition/Compositor.cs b/src/Avalonia.Base/Rendering/Composition/Compositor.cs
@@ -108,6 +108,7 @@ public CompositionBatch RequestCompositionBatchCommitAsync()
             Dispatcher.VerifyAccess();
             if (_nextCommit == null)
             {
+                using var _ = NonPumpingLockHelper.Use();
                 _nextCommit = new ();
                 var pending = _pendingBatch;
                 if (pending != null)

Original file line number	Diff line number	Diff line change
`@@ -108,6 +108,7 @@ public CompositionBatch RequestCompositionBatchCommitAsync()`
`108`	`108`	`Dispatcher.VerifyAccess();`
`109`	`109`	`if (_nextCommit == null)`
`110`	`110`	`{`
	`111`	`+ using var _ = NonPumpingLockHelper.Use();`
`111`	`112`	`_nextCommit = new ();`
`112`	`113`	`var pending = _pendingBatch;`
`113`	`114`	`if (pending != null)`