#ifndef _timer_H_
#define _timer_H_

#include <cstdint>
#include <mutex>

namespace sc {

    class timer {
        static uint64_t next_id;
        static std::mutex mutex;

        timer_t _tid;
        uint64_t _id {};
        double _time {};
        bool _repeat {};
        void (*_expired_func)(timer* self, void* context);
        void* _context {};

        static void callback(union sigval);

        public:
            timer(void(*expired_func)(timer*, void*),
                  double time,
                  bool repeat,
                  void* context);
            ~timer();

            uint64_t id() const { return _id; }
            double time() const { return _time; }
            bool repeat() const { return _repeat; }

            bool is_armed() const;
            void time_left(struct itimerspec& cur_value) const;
            double time_left() const;
    };

}

#endif // _timer_H_