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/*
* Copyright (C) Internet Systems Consortium, Inc. ("ISC")
*
* SPDX-License-Identifier: MPL-2.0
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, you can obtain one at https://mozilla.org/MPL/2.0/.
*
* See the COPYRIGHT file distributed with this work for additional
* information regarding copyright ownership.
*/
/*! \file */
#include <errno.h>
#include <stdbool.h>
#include <stddef.h> /* NULL */
#include <stdlib.h> /* NULL */
#include <syslog.h>
#include <time.h>
#include <isc/stdtime.h>
#include <isc/strerr.h>
#include <isc/util.h>
#define NS_PER_S 1000000000 /*%< Nanoseconds per second. */
#if defined(CLOCK_REALTIME_COARSE)
#define CLOCKSOURCE CLOCK_REALTIME_COARSE
#elif defined(CLOCK_REALTIME_FAST)
#define CLOCKSOURCE CLOCK_REALTIME_FAST
#else /* if defined(CLOCK_REALTIME_COARSE) */
#define CLOCKSOURCE CLOCK_REALTIME
#endif /* if defined(CLOCK_REALTIME_COARSE) */
void
isc_stdtime_get(isc_stdtime_t *t) {
REQUIRE(t != NULL);
struct timespec ts;
if (clock_gettime(CLOCKSOURCE, &ts) == -1) {
char strbuf[ISC_STRERRORSIZE];
strerror_r(errno, strbuf, sizeof(strbuf));
isc_error_fatal(__FILE__, __LINE__, "clock_gettime failed: %s",
strbuf);
}
REQUIRE(ts.tv_sec > 0 && ts.tv_nsec >= 0 && ts.tv_nsec < NS_PER_S);
*t = (isc_stdtime_t)ts.tv_sec;
}
void
isc_stdtime_tostring(isc_stdtime_t t, char *out, size_t outlen) {
time_t when;
REQUIRE(out != NULL);
REQUIRE(outlen >= 26);
UNUSED(outlen);
/* time_t and isc_stdtime_t might be different sizes */
when = t;
INSIST((ctime_r(&when, out) != NULL));
*(out + strlen(out) - 1) = '\0';
}
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