Accumulator.hpp

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/*
 * Copyright (c) 2015 - 2024 Intel Corporation
 * SPDX-License-Identifier: BSD-3-Clause
 */
 
#ifndef ACCUMULATOR_HPP_INCLUDE
#define ACCUMULATOR_HPP_INCLUDE
 
#include <memory>
 
namespace geopm
{
    class SumAccumulator
    {
        public:
            static std::unique_ptr<SumAccumulator> make_unique(void);
            virtual ~SumAccumulator() = default;
            virtual void update(double delta_signal) = 0;
            virtual void enter(void) = 0;
            virtual void exit(void) = 0;
            virtual double total(void) const = 0;
            virtual double interval_total(void) const = 0;
        protected:
            SumAccumulator() = default;
    };
 
    class AvgAccumulator
    {
        public:
            static std::unique_ptr<AvgAccumulator> make_unique(void);
            virtual ~AvgAccumulator() = default;
            virtual void update(double delta_time, double signal) = 0;
            virtual void enter(void) = 0;
            virtual void exit(void) = 0;
            virtual double average(void) const = 0;
            virtual double interval_average(void) const = 0;
        protected:
            AvgAccumulator() = default;
    };
 
    class SumAccumulatorImp : public SumAccumulator
    {
        public:
            SumAccumulatorImp();
            virtual ~SumAccumulatorImp() = default;
            void update(double delta_signal) override;
            void enter(void) override;
            void exit(void) override;
            double total(void) const override;
            double interval_total(void) const override;
        private:
            double m_total;
            double m_current;
            double m_last;
    };
 
    class AvgAccumulatorImp : public AvgAccumulator
    {
        public:
            AvgAccumulatorImp();
            virtual ~AvgAccumulatorImp() = default;
            void update(double delta_time, double signal) override;
            void enter(void) override;
            void exit(void) override;
            double average(void) const override;
            double interval_average(void) const override;
        private:
            double m_total;
            double m_weight;
            double m_curr_total;
            double m_curr_weight;
            double m_last;
    };
}
 
#endif