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// Copyright 2023 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_POWER_METRICS_ENERGY_METRICS_PROVIDER_WIN_H_
#define COMPONENTS_POWER_METRICS_ENERGY_METRICS_PROVIDER_WIN_H_
#include <memory>
#include <string>
#include <vector>
#include "base/win/scoped_handle.h"
#include "components/power_metrics/energy_metrics_provider.h"
namespace power_metrics {
// EnergyMetricsProviderWin obtains energy metrics via Energy Meter Interface
// (EMI) consisting of a set of IOCTLs, which is only supported in Win11.
class EnergyMetricsProviderWin : public EnergyMetricsProvider {
public:
// Factory method for production instances.
static std::unique_ptr<EnergyMetricsProviderWin> Create();
EnergyMetricsProviderWin(const EnergyMetricsProviderWin&) = delete;
EnergyMetricsProviderWin& operator=(const EnergyMetricsProviderWin&) = delete;
~EnergyMetricsProviderWin() override;
// EnergyMetricsProvider implementation.
std::optional<EnergyMetrics> CaptureMetrics() override;
private:
EnergyMetricsProviderWin();
bool Initialize();
// Available metric types, derived from EMI metadata.
std::vector<std::wstring> metric_types_;
// Used to derive energy consumption data via EMI interface.
base::win::ScopedHandle handle_;
bool is_initialized_ = false;
};
} // namespace power_metrics
#endif // COMPONENTS_POWER_METRICS_ENERGY_METRICS_PROVIDER_WIN_H_
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