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303cdf8e27
The various factors like NS_PER_MS are now defined in a single place
and the names are no longer inconsistent. I chose the _PER_SEC names
rather than _PER_S because it is slightly more clear in isolation;
but the smaller units are always NS, US, and MS.
(cherry picked from commit 00307fe318)
63 lines
1.5 KiB
C
63 lines
1.5 KiB
C
/*
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* Copyright (C) Internet Systems Consortium, Inc. ("ISC")
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*
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* SPDX-License-Identifier: MPL-2.0
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, you can obtain one at https://mozilla.org/MPL/2.0/.
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*
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* See the COPYRIGHT file distributed with this work for additional
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* information regarding copyright ownership.
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*/
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/*! \file */
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#include <errno.h>
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#include <stdbool.h>
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#include <stddef.h> /* NULL */
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#include <stdlib.h> /* NULL */
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#include <syslog.h>
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#include <time.h>
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#include <isc/stdtime.h>
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#include <isc/time.h>
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#include <isc/util.h>
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#if defined(CLOCK_REALTIME_COARSE)
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#define CLOCKSOURCE CLOCK_REALTIME_COARSE
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#elif defined(CLOCK_REALTIME_FAST)
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#define CLOCKSOURCE CLOCK_REALTIME_FAST
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#else /* if defined(CLOCK_REALTIME_COARSE) */
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#define CLOCKSOURCE CLOCK_REALTIME
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#endif /* if defined(CLOCK_REALTIME_COARSE) */
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void
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isc_stdtime_get(isc_stdtime_t *t) {
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REQUIRE(t != NULL);
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struct timespec ts;
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if (clock_gettime(CLOCKSOURCE, &ts) == -1) {
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FATAL_SYSERROR(errno, "clock_gettime()");
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}
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REQUIRE(ts.tv_sec > 0 && ts.tv_nsec >= 0 && ts.tv_nsec < NS_PER_SEC);
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*t = (isc_stdtime_t)ts.tv_sec;
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}
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void
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isc_stdtime_tostring(isc_stdtime_t t, char *out, size_t outlen) {
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time_t when;
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REQUIRE(out != NULL);
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REQUIRE(outlen >= 26);
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UNUSED(outlen);
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/* time_t and isc_stdtime_t might be different sizes */
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when = t;
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INSIST((ctime_r(&when, out) != NULL));
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*(out + strlen(out) - 1) = '\0';
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}
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