External/module/Timer/tw.h

#include <memory>
#include <list>
#include <vector>
#include <mutex>

typedef struct TimePos{
    int pos_ms;
    int pos_sec;
    int pos_min;
}TimePos_t;

typedef struct Event {
    int id;
    void(*cb)(void);
    void* arg;
    TimePos_t timePos;
    int interval;
}Event_t;


class TimeWheel {
    typedef std::shared_ptr<TimeWheel> TimeWheelPtr;
    typedef void (*EventCallback_t)(void );
    typedef std::vector<std::list<Event_t>> EventSlotList_t;
public:
    TimeWheel();
    
    void initTimeWheel(int steps, int maxMin);
    void createTimingEvent(int interval, EventCallback_t callback);

public:
    static void* loopForInterval(void* arg);
    
private:
    int getCurrentMs(TimePos_t timePos);
    int createEventId();
    int processEvent(std::list<Event_t> &eventList);
    void getTriggerTimeFromInterval(int interval, TimePos_t &timePos);
    void insertEventToSlot(int interval, Event_t& event);

    EventSlotList_t m_eventSlotList;
    TimePos_t m_timePos;
    pthread_t m_loopThread;

    int m_firstLevelCount;
    int m_secondLevelCount;
    int m_thirdLevelCount; 
    
    int m_steps;
    int m_increaseId;  // not used
    std::mutex m_mutex;
};