clock.h

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#pragma once
 
#include <memory>
 
#include "contur/core/types.h"
 
namespace contur {

    class IClock
    {
        public:
        virtual ~IClock() = default;

        [[nodiscard]] virtual Tick now() const noexcept = 0;

        virtual void tick() = 0;

        virtual void reset() = 0;
    };

    class SimulationClock final : public IClock
    {
        public:
        SimulationClock();
        ~SimulationClock() override;
 
        // Non-copyable
        SimulationClock(const SimulationClock &) = delete;
        SimulationClock &operator=(const SimulationClock &) = delete;
 
        // Movable
        SimulationClock(SimulationClock &&) noexcept;
        SimulationClock &operator=(SimulationClock &&) noexcept;

        [[nodiscard]] Tick now() const noexcept override;

        void tick() override;

        void reset() override;
 
        private:
        struct Impl;
        std::unique_ptr<Impl> impl_;
    };
 
} // namespace contur