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node_modules/react-native/ReactCommon/react/renderer/leakchecker/WeakFamilyRegistry.h

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+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+#pragma once
+
+#include <react/renderer/core/ReactPrimitives.h>
+#include <react/renderer/core/ShadowNodeFamily.h>
+#include <unordered_map>
+#include <vector>
+
+namespace facebook::react {
+
+class WeakFamilyRegistry final {
+ public:
+  using WeakFamilies = std::vector<ShadowNodeFamily::Weak>;
+
+  void add(const ShadowNodeFamily::Shared &shadowNodeFamily) const;
+  void removeFamiliesWithSurfaceId(SurfaceId surfaceId) const;
+  WeakFamilies weakFamiliesForSurfaceId(SurfaceId surfaceId) const;
+
+ private:
+  /**
+   * Mutex protecting `families_` property.
+   */
+  mutable std::mutex familiesMutex_;
+
+  /**
+   * A map of ShadowNodeFamily used on surface.
+   */
+  mutable std::unordered_map<SurfaceId, WeakFamilies> families_{};
+};
+
+} // namespace facebook::react