ch02-sysinfo/sysinfowindowsimpl.h

#ifndef SYSINFOWINDOWSIMPL_H
#define SYSINFOWINDOWSIMPL_H
#ifdef __WINDOWS__
#include <windows.h>
#endif
#include <QVector>
#include <QtGlobal>

#include "sysinfo.h"

typedef struct _FILETIME FILETIME;

class SysInfoWindowsImpl : public SysInfo {
 public:
  SysInfoWindowsImpl();

  // SysInfo interface
  void init() override;
  double cpuLoadAverage() override;
  double memoryUsed() override;

 private:
  QVector<qulonglong> cpuRawData();
  qulonglong convertFileTime(const FILETIME& filetime) const;

 private:
  QVector<qulonglong> mCpuLoadLastValues;
};

#endif  // SYSINFOWINDOWSIMPL_H