// LAF Base Library

// Copyright (c) 2001-2016 David Capello

//

// This file is released under the terms of the MIT license.

// Read LICENSE.txt for more information.

#define WIN32_LEAN_AND_MEAN

#include <windows.h>

class base::Chrono::ChronoImpl {

public:

ChronoImpl()

{

QueryPerformanceFrequency(&m_freq);

reset();

}

void reset() { QueryPerformanceCounter(&m_point); }

double elapsed() const

{

LARGE_INTEGER now;

QueryPerformanceCounter(&now);

return static_cast<double>(now.QuadPart - m_point.QuadPart) /

static_cast<double>(m_freq.QuadPart);

}

private:

LARGE_INTEGER m_point;

LARGE_INTEGER m_freq;

};