chromium/components/optimization_guide/core/prediction_model_store.h

// Copyright 2022 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_OPTIMIZATION_GUIDE_CORE_PREDICTION_MODEL_STORE_H_
#define COMPONENTS_OPTIMIZATION_GUIDE_CORE_PREDICTION_MODEL_STORE_H_

#include "base/files/file_path.h"
#include "base/memory/scoped_refptr.h"
#include "base/memory/weak_ptr.h"
#include "base/sequence_checker.h"
#include "base/task/sequenced_task_runner.h"
#include "base/values.h"
#include "components/optimization_guide/core/model_enums.h"
#include "components/optimization_guide/proto/models.pb.h"

class PrefService;

namespace optimization_guide {

// The new model store that manages the optimization guide prediction models.
// The model store is a key-value store where the optimization target,
// ModelCacheKey can be together considered as the key and the value is the
// model metadata and its files. For every model following are stored:
//   * The prediction model file and its additional files are stored in the
//   model dir.
//   * The full model metadata as model_info.pb in the model dir.
//   * Lightweight model metadata in the local state prefs, that is immediately
//   needed for managing the store, and to avoid the full metadata read.
// The model store is meant to be shared across profiles.
class PredictionModelStore { … };

}  // namespace optimization_guide

#endif  // COMPONENTS_OPTIMIZATION_GUIDE_CORE_PREDICTION_MODEL_STORE_H_