FrameAlignedTimer.h

#ifndef CARMA_UTIL_FRAME_ALIGNED_TIMER_H
#define CARMA_UTIL_FRAME_ALIGNED_TIMER_H

#include <ctime>

#include <sys/time.h>

#include "carma/util/ScheduledTimer.h"

namespace carma {
namespace util {


class FrameAlignedTimer : public ScheduledTimer {
    public:


        explicit FrameAlignedTimer( long offsetNanos = 0,
                                    long periodFrames = 1,
                                    bool preflight = true );



        struct ::timespec ResetNextFireTime( long delayFrames = 0 );



        struct ::timespec ResetNextFireTimeAndWait( long delayFrames = 0 );

        struct ::timespec getNextFireTime( );

    protected:
        virtual Timespec
        CalculateNextFireAbsoluteTime( const Timespec & fireAbsTime );

        Timespec InternalResetNextFireTime( long delayFrames,
                                            bool wait );

    private:
        const Timespec period_;
        const long     offsetNanos_;
};

}  // namespace util
}  // namespace carma

#endif