ref: a921bc6589620e0e1dbd6d7d3e6eb09f505595db
dir: /codec/common/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> #include <sys/timeb.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__