FasTC/CLTool/StopWatch.h
2012-08-24 15:56:45 -04:00

41 lines
1.4 KiB
C++
Executable file

//--------------------------------------------------------------------------------------
// Copyright 2011 Intel Corporation
// All Rights Reserved
//
// Permission is granted to use, copy, distribute and prepare derivative works of this
// software for any purpose and without fee, provided, that the above copyright notice
// and this statement appear in all copies. Intel makes no representations about the
// suitability of this software for any purpose. THIS SOFTWARE IS PROVIDED "AS IS."
// INTEL SPECIFICALLY DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, AND ALL LIABILITY,
// INCLUDING CONSEQUENTIAL AND OTHER INDIRECT DAMAGES, FOR THE USE OF THIS SOFTWARE,
// INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PROPRIETARY RIGHTS, AND INCLUDING THE
// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. Intel does not
// assume any responsibility for any errors which may appear in this software nor any
// responsibility to update it.
//
//--------------------------------------------------------------------------------------
#pragma once
#include "Windows.h"
// A simple stopwatch class using Windows' high-resolution performance counters.
class StopWatch
{
public:
StopWatch();
void Start();
void Stop();
void Reset();
double TimeInSeconds() const;
double TimeInMilliseconds() const;
double TimeInMicroseconds() const;
private:
LONGLONG frequency;
LONGLONG start;
LONGLONG stop;
DWORD_PTR affinityMask;
};