ref: a7ae1efc3ac296456285137b2817cb66a2c2e57f
dir: /codec/common/inc/measure_time.h/
/*!
* \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>
#include "typedefs.h"
#ifndef _WIN32
#include <sys/time.h>
#else
#include <windows.h>
#endif
#include <time.h>
#ifdef __cplusplus
extern "C" {
#endif//__cplusplus
/*!
* \brief time cost measure utilization
* \param void
* \return time elapsed since run (unit: microsecond)
*/
static inline int64_t WelsTime (void) {
#ifndef _WIN32
struct timeval tv_date;
gettimeofday (&tv_date, NULL);
return ((int64_t) tv_date.tv_sec * 1000000 + (int64_t) tv_date.tv_usec);
#else
static int64_t iMtimeFreq = 0;
int64_t iMtimeCur = 0;
int64_t iResult = 0;
if (!iMtimeFreq) {
QueryPerformanceFrequency ((LARGE_INTEGER*)&iMtimeFreq);
if (!iMtimeFreq)
iMtimeFreq = 1;
}
QueryPerformanceCounter ((LARGE_INTEGER*)&iMtimeCur);
iResult = (int64_t) ((double)iMtimeCur * 1e6 / (double)iMtimeFreq + 0.5);
return iResult;
#endif//_WIN32
}
#ifdef __cplusplus
}
#endif
#endif//WELS_TIME_COST_MEASURE_UTIL_H__