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// **************************************************************************
// * This file is part of the FreeFileSync project. It is distributed under *
// * GNU General Public License: http://www.gnu.org/licenses/gpl.html *
// * Copyright (C) Zenju (zenju AT gmx DOT de) - All Rights Reserved *
// **************************************************************************
#ifndef STATISTICS_H_INCLUDED
#define STATISTICS_H_INCLUDED
#include <map>
#include <string>
#include <zen/optional.h>
class PerfCheck
{
public:
PerfCheck(unsigned int windowSizeRemainingTime, //unit: [ms]
unsigned int windowSizeSpeed); //
~PerfCheck();
void addSample(int itemsCurrent, double dataCurrent, long timeMs); //timeMs must be ascending!
zen::Opt<std::wstring> getRemainingTime(double dataRemaining) const;
zen::Opt<std::wstring> getBytesPerSecond() const; //for window
zen::Opt<std::wstring> getItemsPerSecond() const; //for window
private:
struct Record
{
Record(int itemCount, double data) : itemCount_(itemCount), data_(data) {}
int itemCount_;
double data_; //unit: [bytes]
};
std::pair<const std::multimap<long, Record>::value_type*,
const std::multimap<long, Record>::value_type*> getBlockFromEnd(long windowSize) const;
const long windowSizeRemTime; //unit: [ms]
const long windowSizeSpeed_; //
const long windowMax;
std::map<long, Record> samples; //time, unit: [ms]
};
#endif // STATISTICS_H_INCLUDED
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