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// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_PERFORMANCE_MANAGER_GRAPH_NODE_ATTACHED_DATA_STORAGE_H_
#define COMPONENTS_PERFORMANCE_MANAGER_GRAPH_NODE_ATTACHED_DATA_STORAGE_H_
#include <map>
#include <memory>
#include "components/performance_manager/graph/node_inline_data.h"
#include "components/performance_manager/public/graph/node_attached_data.h"
namespace performance_manager {
// Stores NodeAttachedData in nodes using NodeInlineData.
class NodeAttachedDataStorage : public NodeInlineData<NodeAttachedDataStorage> {
public:
NodeAttachedDataStorage();
NodeAttachedDataStorage(const NodeAttachedDataStorage&) = delete;
NodeAttachedDataStorage& operator=(const NodeAttachedDataStorage&) = delete;
NodeAttachedDataStorage(NodeAttachedDataStorage&&);
NodeAttachedDataStorage& operator=(NodeAttachedDataStorage&&);
~NodeAttachedDataStorage();
// Attaches `data` to the node owning this storage.
void AttachData(std::unique_ptr<NodeAttachedData> data);
// Retrieves the data associated with `key`. Returns nullptr if there is none.
NodeAttachedData* GetData(const void* key) const;
// Detaches and returns the data associated with `key`. Returns nullptr if
// there is none.
std::unique_ptr<NodeAttachedData> DetachData(const void* key);
private:
std::map<const void*, std::unique_ptr<NodeAttachedData>>
node_attached_data_map_;
};
} // namespace performance_manager
#endif // COMPONENTS_PERFORMANCE_MANAGER_GRAPH_NODE_ATTACHED_DATA_STORAGE_H_
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