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// Copyright 2021 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_OPTIMIZATION_GUIDE_MODEL_PROVIDER_H_
#define COMPONENTS_OPTIMIZATION_GUIDE_CORE_OPTIMIZATION_GUIDE_MODEL_PROVIDER_H_
#include <optional>
#include "components/optimization_guide/core/optimization_target_model_observer.h"
#include "components/optimization_guide/proto/models.pb.h"
namespace optimization_guide {
// Provides models configured to be served by the Optimization Guide to be used
// for inference.
class OptimizationGuideModelProvider {
public:
// Adds an observer for updates to the model for |optimization_target|.
//
// It is assumed that any model retrieved this way will be passed to the
// Machine Learning Service for inference.
//
// It is also assumed that there will only be one observer per optimization
// target, so if multiple observers are registered, this will crash in debug
// builds and be a no-op in release builds.
virtual void AddObserverForOptimizationTargetModel(
proto::OptimizationTarget optimization_target,
const std::optional<proto::Any>& model_metadata,
OptimizationTargetModelObserver* observer) = 0;
// Removes an observer for updates to the model for |optimization_target|.
//
// If |observer| is registered for multiple targets, |observer| must be
// removed for all targets that it is added for in order for it to be fully
// removed from receiving any calls.
virtual void RemoveObserverForOptimizationTargetModel(
proto::OptimizationTarget optimization_target,
OptimizationTargetModelObserver* observer) = 0;
protected:
OptimizationGuideModelProvider() = default;
virtual ~OptimizationGuideModelProvider() = default;
};
} // namespace optimization_guide
#endif // COMPONENTS_OPTIMIZATION_GUIDE_CORE_OPTIMIZATION_GUIDE_MODEL_PROVIDER_H_
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