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//
// Copyright (c) 2009-2010 Mikko Mononen memon@inside.org
//
// This software is provided 'as-is', without any express or implied
// warranty. In no event will the authors be held liable for any damages
// arising from the use of this software.
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it
// freely, subject to the following restrictions:
// 1. The origin of this software must not be misrepresented; you must not
// claim that you wrote the original software. If you use this software
// in a product, an acknowledgment in the product documentation would be
// appreciated but is not required.
// 2. Altered source versions must be plainly marked as such, and must not be
// misrepresented as being the original software.
// 3. This notice may not be removed or altered from any source distribution.
//
#include "PerfTimer.h"
#if defined(WIN32)
// Win32
#include <windows.h>
TimeVal getPerfTime()
{
__int64 count;
QueryPerformanceCounter((LARGE_INTEGER*)&count);
return count;
}
int getPerfTimeUsec(const TimeVal duration)
{
static __int64 freq = 0;
if (freq == 0)
QueryPerformanceFrequency((LARGE_INTEGER*)&freq);
return (int)(duration*1000000 / freq);
}
#else
// Linux, BSD, OSX
#include <sys/time.h>
TimeVal getPerfTime()
{
timeval now;
gettimeofday(&now, 0);
return (TimeVal)now.tv_sec*1000000L + (TimeVal)now.tv_usec;
}
int getPerfTimeUsec(const TimeVal duration)
{
return (int)duration;
}
#endif
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