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/* Copyright (C) 1991-2019 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include <errno.h>
#include <time.h>
#include <mach.h>
#include <shlib-compat.h>
/* Get the current time of day, putting it into *TS.
Returns 0 on success, -1 on errors. */
int
__clock_gettime (clockid_t clock_id, struct timespec *ts)
{
if (clock_id != CLOCK_REALTIME)
{
errno = EINVAL;
return -1;
}
/* __host_get_time can only fail if passed an invalid host_t.
__mach_host_self could theoretically fail (producing an
invalid host_t) due to resource exhaustion, but we assume
this will never happen. */
time_value_t tv;
__host_get_time (__mach_host_self (), &tv);
TIME_VALUE_TO_TIMESPEC (&tv, ts);
return 0;
}
libc_hidden_def (__clock_gettime)
versioned_symbol (libc, __clock_gettime, clock_gettime, GLIBC_2_17);
/* clock_gettime moved to libc in version 2.17;
old binaries may expect the symbol version it had in librt. */
#if SHLIB_COMPAT (libc, GLIBC_2_2, GLIBC_2_17)
strong_alias (__clock_gettime, __clock_gettime_2);
compat_symbol (libc, __clock_gettime_2, clock_gettime, GLIBC_2_2);
#endif
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