mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-26 23:10:06 +00:00
71 lines
2.0 KiB
C
71 lines
2.0 KiB
C
/* clock_adjtime -- tune kernel clock.
|
|
Copyright (C) 2020-2023 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; see the file COPYING.LIB. If
|
|
not, see <https://www.gnu.org/licenses/>. */
|
|
|
|
#include <errno.h>
|
|
#include <stdlib.h>
|
|
#include <time.h>
|
|
#include <sysdep.h>
|
|
#include <sys/timex.h>
|
|
#include <kernel-features.h>
|
|
|
|
int
|
|
__clock_adjtime64 (const clockid_t clock_id, struct __timex64 *tx64)
|
|
{
|
|
#ifndef __NR_clock_adjtime64
|
|
# define __NR_clock_adjtime64 __NR_clock_adjtime
|
|
#endif
|
|
int r = INLINE_SYSCALL_CALL (clock_adjtime64, clock_id, tx64);
|
|
#ifndef __ASSUME_TIME64_SYSCALLS
|
|
if (r >= 0 || errno != ENOSYS)
|
|
return r;
|
|
|
|
if (tx64->modes & ADJ_SETOFFSET
|
|
&& ! in_int32_t_range (tx64->time.tv_sec))
|
|
{
|
|
__set_errno (EOVERFLOW);
|
|
return -1;
|
|
}
|
|
|
|
struct timex tx32 = valid_timex64_to_timex (*tx64);
|
|
r = INLINE_SYSCALL_CALL (clock_adjtime, clock_id, &tx32);
|
|
if (r >= 0)
|
|
*tx64 = valid_timex_to_timex64 (tx32);
|
|
#endif
|
|
return r;
|
|
}
|
|
|
|
#if __TIMESIZE != 64
|
|
libc_hidden_def (__clock_adjtime64)
|
|
|
|
int
|
|
__clock_adjtime (const clockid_t clock_id, struct timex *tx)
|
|
{
|
|
struct __timex64 tx64;
|
|
int retval;
|
|
|
|
tx64 = valid_timex_to_timex64 (*tx);
|
|
retval = __clock_adjtime64 (clock_id, &tx64);
|
|
if (retval >= 0)
|
|
*tx = valid_timex64_to_timex (tx64);
|
|
|
|
return retval;
|
|
}
|
|
#endif
|
|
libc_hidden_def (__clock_adjtime);
|
|
strong_alias (__clock_adjtime, clock_adjtime)
|