107 lines
3.5 KiB
C
107 lines
3.5 KiB
C
/*!
|
|
* \copy
|
|
* Copyright (c) 2009-2013, Cisco Systems
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* * Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
*
|
|
* * Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in
|
|
* the documentation and/or other materials provided with the
|
|
* distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
|
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
|
* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
|
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
|
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
|
|
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
|
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
*
|
|
* \file measure_time.h
|
|
*
|
|
* \brief time cost measure utilization
|
|
*
|
|
* \date 04/28/2009 Created
|
|
*
|
|
*************************************************************************************
|
|
*/
|
|
#ifndef WELS_TIME_COST_MEASURE_UTIL_H__
|
|
#define WELS_TIME_COST_MEASURE_UTIL_H__
|
|
|
|
#include <stdlib.h>
|
|
|
|
#if !(defined(_MSC_VER) || defined(__MINGW32__))
|
|
#include <sys/time.h>
|
|
#else
|
|
#include "typedefs.h"
|
|
//#include <sys/types.h>
|
|
#include <sys/timeb.h>
|
|
#endif
|
|
#include <time.h>
|
|
#if defined(_WIN32)
|
|
#include <windows.h>
|
|
//#include <mmsystem.h> // need static lib winmm.lib for link for such windows 95/98 mm timer
|
|
#endif//#if _WIN32
|
|
|
|
/*!
|
|
* \brief time cost measure utilization
|
|
* \param void
|
|
* \return time elapsed since run (unit: microsecond)
|
|
*/
|
|
|
|
static inline int64_t WelsTime() {
|
|
#if !(defined(_MSC_VER) || defined(__MINGW32__))
|
|
struct timeval tv_date;
|
|
|
|
gettimeofday (&tv_date, NULL);
|
|
return ((int64_t) tv_date.tv_sec * 1000000 + (int64_t) tv_date.tv_usec);
|
|
#else
|
|
#if defined (_WIN32)
|
|
static int64_t iMeasureTimeFreq = 0;
|
|
// static BOOL_T support_high_resolution_perf_flag = TRUE;
|
|
int64_t iMeasureTimeCur = 0;
|
|
int64_t iResult = 0;
|
|
if (0 == iMeasureTimeFreq) {
|
|
// Per MSDN minimum supported OS is Windows 2000 Professional/Server above for high-resolution performance counter
|
|
/*BOOL_T ret = */QueryPerformanceFrequency ((LARGE_INTEGER*)&iMeasureTimeFreq);
|
|
// if ( !ret ) // the installed hardware can not support a high-resolution performance counter, we have to use others instead for well feature
|
|
// {
|
|
// support_high_resolution_perf_flag = FALSE;
|
|
// }
|
|
if (!iMeasureTimeFreq)
|
|
iMeasureTimeFreq = 1;
|
|
}
|
|
// if ( support_high_resolution_perf_flag )
|
|
// {
|
|
QueryPerformanceCounter ((LARGE_INTEGER*)&iMeasureTimeCur);
|
|
iResult = (int64_t) ((double)iMeasureTimeCur * 1e6 / (double)iMeasureTimeFreq + 0.5);
|
|
// }
|
|
// else
|
|
// {
|
|
// iResult = timeGetTime() * 1000; // 10 ms precision
|
|
// }
|
|
return iResult;
|
|
|
|
#else
|
|
struct _timeb tb;
|
|
|
|
_ftime (&tb);
|
|
return ((int64_t)tb.time * (1000) + (int64_t)tb.millitm) * (1000);
|
|
#endif//#if _WIN32
|
|
#endif//!(defined(_MSC_VER) || defined(__MINGW32__))
|
|
}
|
|
|
|
#endif//WELS_TIME_COST_MEASURE_UTIL_H__
|