mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-20 06:53:33 +08:00
52 lines
1.8 KiB
C
52 lines
1.8 KiB
C
/* Copyright (C) 1991-2020 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
|