timer.hpp

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#ifndef SPLA_TIMER_HPP
#define SPLA_TIMER_HPP
 
#include "config.hpp"
 
#include <chrono>
#include <iostream>
#include <ostream>
#include <vector>
 
namespace spla {
 
    class Timer {
    public:
        SPLA_API Timer();
        SPLA_API ~Timer();
 
        SPLA_API void                 start();
        SPLA_API void                 stop();
        SPLA_API void                 lap_begin();
        SPLA_API void                 lap_end();
        SPLA_API void                 print(std::ostream& out = std::cout) const;
        [[nodiscard]] SPLA_API double get_elapsed_ms() const;
        [[nodiscard]] SPLA_API double get_elapsed_sec() const;
        [[nodiscard]] SPLA_API const std::vector<double>& get_laps_ms() const;
 
    private:
        using clock = std::chrono::steady_clock;
        using us    = std::chrono::microseconds;
        using point = clock::time_point;
 
        std::vector<double> m_laps;
        point               m_start;
        point               m_prev;
        point               m_end;
    };
 
}// namespace spla
 
#endif//SPLA_TIMER_HPP