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/*
* Copyright (c) 2022 Stefan Sperling <stsp@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/time.h>
#include <stdio.h>
#include <limits.h>
#include <string.h>
#include <time.h>
#include "got_lib_ratelimit.h"
#include "got_compat.h"
#include "got_error.h"
void
got_ratelimit_init(struct got_ratelimit *rl, time_t interval_sec,
unsigned int interval_msec)
{
memset(rl, 0, sizeof(*rl));
rl->interval.tv_sec = interval_sec;
rl->interval.tv_nsec = interval_msec * 1000000UL;
}
const struct got_error *
got_ratelimit_check(int *elapsed, struct got_ratelimit *rl)
{
struct timespec now, delta;
if (clock_gettime(CLOCK_MONOTONIC, &now) == -1)
return got_error_from_errno("clock_gettime");
if (timespecisset(&rl->last)) {
timespecsub(&now, &rl->last, &delta);
*elapsed = timespeccmp(&delta, &rl->interval, >=) ? 1 : 0;
} else
*elapsed = 1;
if (*elapsed)
rl->last = now;
return NULL;
}
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