mirror of
https://github.com/ncblakely/GiantsTools
synced 2024-11-05 06:45:37 +01:00
60 lines
1.5 KiB
C++
60 lines
1.5 KiB
C++
|
//
|
||
|
|
// 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
|