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// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef BASE_POWER_MONITOR_THERMAL_STATE_OBSERVER_MAC_H_
#define BASE_POWER_MONITOR_THERMAL_STATE_OBSERVER_MAC_H_
#include <IOKit/pwr_mgt/IOPMLib.h>
#include <dispatch/dispatch.h>
#include <memory>
#include "base/base_export.h"
#include "base/functional/callback.h"
#include "base/gtest_prod_util.h"
#include "base/power_monitor/power_observer.h"
namespace base {
// This class is used to listen for the thermal state change notification
// NSProcessInfoThermalStateDidChangeNotification, routing it to
// PowerMonitorSource.
class BASE_EXPORT ThermalStateObserverMac {
public:
using StateUpdateCallback =
base::RepeatingCallback<void(PowerThermalObserver::DeviceThermalState)>;
using SpeedLimitUpdateCallback = base::RepeatingCallback<void(int)>;
ThermalStateObserverMac(
StateUpdateCallback state_update_callback,
SpeedLimitUpdateCallback speed_limit_update_callback,
// This optional argument is overridden from tests because Apple software
// doesn't seem to permit injecting notifications in their domains.
// NOTE: this must be a statically allocated string as the pointer value
// is stored internally.
const char* power_notification_key = kIOPMCPUPowerNotificationKey);
~ThermalStateObserverMac();
PowerThermalObserver::DeviceThermalState GetCurrentThermalState();
int GetCurrentSpeedLimit() const;
private:
FRIEND_TEST_ALL_PREFIXES(ThermalStateObserverMacTest, StateChange);
PowerThermalObserver::DeviceThermalState state_for_testing_ =
PowerThermalObserver::DeviceThermalState::kUnknown;
const char* const power_notification_key_;
int speed_limit_notification_token_ = 0;
struct ObjCStorage;
std::unique_ptr<ObjCStorage> objc_storage_;
};
} // namespace base
#endif // BASE_POWER_MONITOR_THERMAL_STATE_OBSERVER_MAC_H_
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