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// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
#ifndef RBD_MIRROR_IMAGE_REPLAYER_TIME_ROLLING_MEAN_H
#define RBD_MIRROR_IMAGE_REPLAYER_TIME_ROLLING_MEAN_H
#include "include/utime.h"
#include <boost/accumulators/accumulators.hpp>
#include <boost/accumulators/statistics/stats.hpp>
#include <boost/accumulators/statistics/rolling_mean.hpp>
namespace rbd {
namespace mirror {
namespace image_replayer {
class TimeRollingMean {
public:
void operator()(uint32_t value);
double get_average() const;
private:
typedef boost::accumulators::accumulator_set<
uint64_t, boost::accumulators::stats<
boost::accumulators::tag::rolling_mean>> RollingMean;
utime_t m_last_time;
uint64_t m_sum = 0;
RollingMean m_rolling_mean{
boost::accumulators::tag::rolling_window::window_size = 30};
};
} // namespace image_replayer
} // namespace mirror
} // namespace rbd
#endif // RBD_MIRROR_IMAGE_REPLAYER_TIME_ROLLING_MEAN_H
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