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#ifndef RATECALCULATOR_H
#define RATECALCULATOR_H
#include <QtGlobal>
#include <QElapsedTimer>
#include <QLinkedList>
#include <QPair>
class RateCalculator
{
public:
void addBytes(qint64 bytes);
void updateTotalBytes(qint64 bytes);
void start();
void stop();
void reset();
double rate(qint64 interval = -1) const;
private:
QElapsedTimer m_timer;
QLinkedList<QPair<qint64, qint64> > m_segments;
qint64 m_byteSum;
};
#endif // RATECALCULATOR_H
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