StopWatch.h

// Copyright (C) 2013-2014 Altera Corporation, San Jose, California, USA. All rights reserved.
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to
// whom the Software is furnished to do so, subject to the following conditions:
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
// OTHER DEALINGS IN THE SOFTWARE.
// 
// This agreement shall be governed in all respects by the laws of the State of California and
// by the laws of the United States of America.

#ifndef __STOP_WATCH_H__
#define __STOP_WATCH_H__

#ifdef _WIN32   // Windows system specific
#include <windows.h>

#else      // Unix based system specific
#include <sys/time.h>

#endif

// timing storage structure
struct StopWatch
{
#ifdef _WIN32
  LARGE_INTEGER frequency;
  LARGE_INTEGER startCount;
  LARGE_INTEGER endCount;

#else
  timeval startCount;
  timeval endCount;

#endif
};

// timing functions
void startTime(StopWatch* aStopWatch);
double getElapsedTime(StopWatch* aStopWatch);

#endif