src/LocARNA/stopwatch.hh

#ifndef LOCARNA_STOPWATCH_HH
#define LOCARNA_STOPWATCH_HH

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include "aux.hh"
#include <iosfwd>
#include <string>

namespace LocARNA {
    class StopWatch {
    private:
        struct timer_t {
            bool running;      
            double last_start; 
            double total;      
            size_t cycles;     

            timer_t()
                : running(false), last_start(0.0), total(0.0), cycles(0) {}
        };

        typedef unordered_map<std::string, timer_t>::type map_t;

        map_t timers;

        bool print_on_exit;

    public:
        explicit StopWatch(bool print_on_exit = false);

        ~StopWatch();

        void
        set_print_on_exit(bool print_on_exit);

        bool
        start(const std::string &name);

        bool
        stop(const std::string &name);

        bool
        is_running(const std::string &name) const;

        double
        current_total(const std::string &name) const;

        size_t
        current_cycles(const std::string &name) const;

        std::ostream &
        print_info(std::ostream &out, const std::string &name) const;

        std::ostream &
        print_info(std::ostream &out) const;

    private:
        double
        current_time() const;
    };
}
#endif