- double get_watt_idle_at(int pstate);
- double get_watt_min_at(int pstate);
- double get_watt_max_at(int pstate);
- double get_power_range_slope_at(int pstate);
+ double get_watt_idle_at(int pstate) const;
+ double get_watt_min_at(int pstate) const;
+ double get_watt_max_at(int pstate) const;
+ double get_power_range_slope_at(int pstate) const;
+ double get_last_update_time() const { return last_updated_; }