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/*
* Copyright © 2015 Kazunobu Kuriyama <kazunobu.kuriyama@nifty.com>
* Ran Benita <ran234@gmail.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#include "config.h"
#include <assert.h>
#include <stdio.h>
#include "bench.h"
#include "../src/utils.h"
#ifndef _WIN32
#include <sys/time.h>
#else
#include <windows.h>
#include <stdint.h>
struct timeval {
long tv_sec, tv_usec;
};
static int
gettimeofday(struct timeval *tv, void *unused)
{
static const uint64_t EPOCH = ((uint64_t) 116444736000000000ULL);
SYSTEMTIME system_time;
FILETIME file_time;
uint64_t t;
GetSystemTime(&system_time);
SystemTimeToFileTime(&system_time, &file_time);
t = (uint64_t) file_time.dwLowDateTime;
t += ((uint64_t) file_time.dwHighDateTime) << 32;
tv->tv_sec = (long) ((t - EPOCH) / 10000000L);
tv->tv_usec = (long) (system_time.wMilliseconds * 1000);
return 0;
}
#endif
void
bench_start(struct bench *bench)
{
struct timeval val;
(void) gettimeofday(&val, NULL);
bench->start = (struct bench_time) {
.seconds = val.tv_sec,
.microseconds = val.tv_usec,
};
}
void
bench_stop(struct bench *bench)
{
struct timeval val;
(void) gettimeofday(&val, NULL);
bench->stop = (struct bench_time) {
.seconds = val.tv_sec,
.microseconds = val.tv_usec,
};
}
void
bench_elapsed(const struct bench *bench, struct bench_time *result)
{
result->seconds = bench->stop.seconds - bench->start.seconds;
result->microseconds = bench->stop.microseconds - bench->start.microseconds;
if (result->microseconds < 0) {
result->microseconds += 1000000;
result->seconds--;
}
}
char *
bench_elapsed_str(const struct bench *bench)
{
struct bench_time elapsed;
char *buf;
int ret;
bench_elapsed(bench, &elapsed);
ret = asprintf(&buf, "%ld.%06ld", elapsed.seconds, elapsed.microseconds);
assert(ret >= 0);
return buf;
}
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