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134 lines
4.1 KiB
C
134 lines
4.1 KiB
C
/*
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Copyright (c) 2017. The YARA Authors. All Rights Reserved.
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Redistribution and use in source and binary forms, with or without modification,
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are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright notice, this
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list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation and/or
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other materials provided with the distribution.
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3. Neither the name of the copyright holder nor the names of its contributors
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may be used to endorse or promote products derived from this software without
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specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
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ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <yara/stopwatch.h>
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#if defined(_WIN32)
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void yr_stopwatch_start(YR_STOPWATCH* sw)
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{
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QueryPerformanceFrequency(&sw->frequency);
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QueryPerformanceCounter(&sw->start);
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}
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uint64_t yr_stopwatch_elapsed_ns(YR_STOPWATCH* sw)
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{
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LARGE_INTEGER li;
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QueryPerformanceCounter(&li);
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return (li.QuadPart - sw->start.QuadPart) * 1000000000ULL /
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sw->frequency.QuadPart;
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}
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#elif defined(__APPLE__) && defined(__MACH__)
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void yr_stopwatch_start(YR_STOPWATCH* sw)
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{
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mach_timebase_info(&sw->timebase);
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sw->start = mach_absolute_time();
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}
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uint64_t yr_stopwatch_elapsed_ns(YR_STOPWATCH* sw)
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{
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uint64_t now = mach_absolute_time();
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return ((now - sw->start) * sw->timebase.numer) / sw->timebase.denom;
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}
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#elif defined(HAVE_CLOCK_GETTIME)
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#define timespecsub(tsp, usp, vsp) \
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do \
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{ \
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(vsp)->tv_sec = (tsp)->tv_sec - (usp)->tv_sec; \
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(vsp)->tv_nsec = (tsp)->tv_nsec - (usp)->tv_nsec; \
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if ((vsp)->tv_nsec < 0) \
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{ \
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(vsp)->tv_sec--; \
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(vsp)->tv_nsec += 1000000000L; \
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} \
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} while (0)
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void yr_stopwatch_start(YR_STOPWATCH* stopwatch)
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{
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clock_gettime(CLOCK_MONOTONIC, &stopwatch->ts_start);
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}
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uint64_t yr_stopwatch_elapsed_ns(YR_STOPWATCH* stopwatch)
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{
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struct timespec ts_stop;
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struct timespec ts_elapsed;
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clock_gettime(CLOCK_MONOTONIC, &ts_stop);
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timespecsub(&ts_stop, &stopwatch->ts_start, &ts_elapsed);
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return ts_elapsed.tv_sec * 1000000000ULL + ts_elapsed.tv_nsec;
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}
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#else
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#include <sys/time.h>
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#define timevalsub(tvp, uvp, vvp) \
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do \
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{ \
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(vvp)->tv_sec = (tvp)->tv_sec - (uvp)->tv_sec; \
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(vvp)->tv_usec = (tvp)->tv_usec - (uvp)->tv_usec; \
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if ((vvp)->tv_usec < 0) \
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{ \
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(vvp)->tv_sec--; \
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(vvp)->tv_usec += 1000000L; \
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} \
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} while (0)
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void yr_stopwatch_start(YR_STOPWATCH* stopwatch)
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{
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gettimeofday(&stopwatch->tv_start, NULL);
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}
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uint64_t yr_stopwatch_elapsed_ns(YR_STOPWATCH* stopwatch)
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{
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struct timeval tv_stop;
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struct timeval tv_elapsed;
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gettimeofday(&tv_stop, NULL);
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timevalsub(&tv_stop, &stopwatch->tv_start, &tv_elapsed);
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return tv_elapsed.tv_sec * 1000000000ULL + tv_elapsed.tv_usec * 1000ULL;
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}
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#endif
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