/*-
* Copyright (c) 2016 Maksym Sobolyev <sobomax@FreeBSD.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#include <sys/time.h>
#include <time.h>
#include "uc_check_time.h"
static const struct timeval max_diff_tv = {.tv_sec = 1, .tv_usec = 0};
static const struct timespec max_diff_ts = {.tv_sec = 1, .tv_nsec = 0};
int
uc_check_bintime(const struct bintime *mt)
{
struct timespec bt;
bintime2timespec(mt, &bt);
return (uc_check_timespec_real(&bt));
}
int
uc_check_timeval(const struct timeval *bt)
{
struct timeval ct, dt;
if (gettimeofday(&ct, NULL) < 0)
return (-1);
timersub(&ct, bt, &dt);
if (!timercmp(&dt, &max_diff_tv, <))
return (-1);
return (0);
}
int
uc_check_timespec_real(const struct timespec *bt)
{
struct timespec ct;
if (clock_gettime(CLOCK_REALTIME, &ct) < 0)
return (-1);
timespecsub(&ct, bt, &ct);
if (!timespeccmp(&ct, &max_diff_ts, <))
return (-1);
return (0);
}
int
uc_check_timespec_mono(const struct timespec *bt)
{
struct timespec ct;
if (clock_gettime(CLOCK_MONOTONIC, &ct) < 0)
return (-1);
timespecsub(&ct, bt, &ct);
if (!timespeccmp(&ct, &max_diff_ts, <))
return (-1);
return (0);
}
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