11bdd8adad
Both encoder and decoder versions were functionally equivalent, but I picked the decoder version (but added the static inline keywords to it) since the encoder one was quite messy with a lot of commented out code.
90 lines
2.7 KiB
C
90 lines
2.7 KiB
C
/*!
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* \copy
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* Copyright (c) 2009-2013, Cisco Systems
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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*
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* \file measure_time.h
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*
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* \brief time cost measure utilization
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*
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* \date 04/28/2009 Created
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*
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*************************************************************************************
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*/
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#ifndef WELS_TIME_COST_MEASURE_UTIL_H__
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#define WELS_TIME_COST_MEASURE_UTIL_H__
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#include <stdlib.h>
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#include "typedefs.h"
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#ifndef _WIN32
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#include <sys/time.h>
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#else
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#include <windows.h>
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#include <sys/timeb.h>
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#endif
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#include <time.h>
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#ifdef __cplusplus
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extern "C" {
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#endif//__cplusplus
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/*!
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* \brief time cost measure utilization
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* \param void_t
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* \return time elapsed since run (unit: microsecond)
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*/
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static inline int64_t WelsTime (void_t) {
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#ifndef _WIN32
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struct timeval tv_date;
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gettimeofday (&tv_date, NULL);
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return ((int64_t) tv_date.tv_sec * 1000000 + (int64_t) tv_date.tv_usec);
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#else
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static int64_t iMtimeFreq = 0;
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int64_t iMtimeCur = 0;
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int64_t iResult = 0;
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if (!iMtimeFreq) {
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QueryPerformanceFrequency ((LARGE_INTEGER*)&iMtimeFreq);
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if (!iMtimeFreq)
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iMtimeFreq = 1;
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}
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QueryPerformanceCounter ((LARGE_INTEGER*)&iMtimeCur);
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iResult = (int64_t) ((double)iMtimeCur * 1e6 / (double)iMtimeFreq + 0.5);
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return iResult;
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#endif//WIN32
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}
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#ifdef __cplusplus
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}
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#endif
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#endif//WELS_TIME_COST_MEASURE_UTIL_H__
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