Waiter.hpp

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/*
 * Copyright (c) 2015 - 2024 Intel Corporation
 * SPDX-License-Identifier: BSD-3-Clause
 */
 
#ifndef WAITER_HPP_INCLUDE
#define WAITER_HPP_INCLUDE
 
#include <memory>
#include "geopm_time.h"
#include "geopm_public.h"
 
namespace geopm
{
    class GEOPM_PUBLIC Waiter
    {
        public:
            static std::unique_ptr<Waiter> make_unique(double period);
            static std::unique_ptr<Waiter> make_unique(double period,
                                                       std::string strategy);
            Waiter() = default;
            virtual ~Waiter() = default;
            virtual void reset(void) = 0;
            virtual void reset(double period) = 0;
            virtual void wait(void) = 0;
            virtual double period(void) const = 0;
    };
 
    class GEOPM_PUBLIC SleepWaiter : public Waiter
    {
        public:
            SleepWaiter(double period);
            virtual ~SleepWaiter() = default;
            void reset(void) override;
            void reset(double period) override;
            void wait(void) override;
            double period(void) const override;
        private:
            double m_period;
            geopm_time_s m_time_target;
            bool m_is_first_time;
    };
}
 
#endif