109 lines
3.0 KiB
C
109 lines
3.0 KiB
C
/*
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* Copyright © 2015 Kazunobu Kuriyama <kazunobu.kuriyama@nifty.com>
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* Ran Benita <ran234@gmail.com>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#include "config.h"
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#include <assert.h>
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#include <stdio.h>
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#include "bench.h"
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#include "../src/utils.h"
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#ifndef _MSC_VER
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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 <stdint.h>
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struct timeval {
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long tv_sec, tv_usec;
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};
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static int
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gettimeofday(struct timeval *tv, void *unused)
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{
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static const uint64_t EPOCH = ((uint64_t) 116444736000000000ULL);
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SYSTEMTIME system_time;
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FILETIME file_time;
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uint64_t t;
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GetSystemTime(&system_time);
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SystemTimeToFileTime(&system_time, &file_time);
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t = (uint64_t) file_time.dwLowDateTime;
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t += ((uint64_t) file_time.dwHighDateTime) << 32;
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tv->tv_sec = (long) ((t - EPOCH) / 10000000L);
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tv->tv_usec = (long) (system_time.wMilliseconds * 1000);
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return 0;
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}
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#endif
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void
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bench_start(struct bench *bench)
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{
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struct timeval val;
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(void) gettimeofday(&val, NULL);
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bench->start = (struct bench_time) {
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.seconds = val.tv_sec,
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.microseconds = val.tv_usec,
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};
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}
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void
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bench_stop(struct bench *bench)
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{
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struct timeval val;
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(void) gettimeofday(&val, NULL);
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bench->stop = (struct bench_time) {
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.seconds = val.tv_sec,
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.microseconds = val.tv_usec,
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};
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}
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void
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bench_elapsed(const struct bench *bench, struct bench_time *result)
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{
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result->seconds = bench->stop.seconds - bench->start.seconds;
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result->microseconds = bench->stop.microseconds - bench->start.microseconds;
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if (result->microseconds < 0) {
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result->microseconds += 1000000;
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result->seconds--;
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}
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}
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char *
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bench_elapsed_str(const struct bench *bench)
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{
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struct bench_time elapsed;
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char *buf;
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int ret;
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bench_elapsed(bench, &elapsed);
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ret = asprintf(&buf, "%ld.%06ld", elapsed.seconds, elapsed.microseconds);
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assert(ret >= 0);
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return buf;
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}
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