mirror of
https://sourceware.org/git/glibc.git
synced 2025-11-03 20:53:13 +03:00
95 lines
2.4 KiB
C
95 lines
2.4 KiB
C
/* Copyright (C) 1995-2025 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 <limits.h>
|
|
#include <sys/time.h>
|
|
#include <sys/timex.h>
|
|
#include <sysdep.h>
|
|
|
|
#define MAX_SEC (INT_MAX / 1000000L - 2)
|
|
#define MIN_SEC (INT_MIN / 1000000L + 2)
|
|
|
|
int
|
|
__adjtime64 (const struct __timeval64 *itv, struct __timeval64 *otv)
|
|
{
|
|
struct __timex64 tntx;
|
|
|
|
if (itv)
|
|
{
|
|
struct __timeval64 tmp;
|
|
|
|
/* We will do some check here. */
|
|
tmp.tv_sec = itv->tv_sec + itv->tv_usec / 1000000L;
|
|
tmp.tv_usec = itv->tv_usec % 1000000L;
|
|
if (tmp.tv_sec > MAX_SEC || tmp.tv_sec < MIN_SEC)
|
|
return INLINE_SYSCALL_ERROR_RETURN_VALUE (EINVAL);
|
|
tntx.offset = tmp.tv_usec + tmp.tv_sec * 1000000L;
|
|
tntx.modes = ADJ_OFFSET_SINGLESHOT;
|
|
}
|
|
else
|
|
tntx.modes = ADJ_OFFSET_SS_READ;
|
|
|
|
if (__glibc_unlikely (__clock_adjtime64 (CLOCK_REALTIME, &tntx) < 0))
|
|
return -1;
|
|
|
|
if (otv)
|
|
{
|
|
if (tntx.offset < 0)
|
|
{
|
|
otv->tv_usec = -(-tntx.offset % 1000000);
|
|
otv->tv_sec = -(-tntx.offset / 1000000);
|
|
}
|
|
else
|
|
{
|
|
otv->tv_usec = tntx.offset % 1000000;
|
|
otv->tv_sec = tntx.offset / 1000000;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
#if __TIMESIZE != 64
|
|
libc_hidden_def (__adjtime64)
|
|
|
|
int
|
|
__adjtime (const struct timeval *itv, struct timeval *otv)
|
|
{
|
|
struct __timeval64 itv64, *pitv64 = NULL;
|
|
struct __timeval64 otv64;
|
|
int retval;
|
|
|
|
if (itv != NULL)
|
|
{
|
|
itv64 = valid_timeval_to_timeval64 (*itv);
|
|
pitv64 = &itv64;
|
|
}
|
|
retval = __adjtime64 (pitv64, otv != NULL ? &otv64 : NULL);
|
|
if (otv != NULL)
|
|
*otv = valid_timeval64_to_timeval (otv64);
|
|
|
|
return retval;
|
|
}
|
|
#endif
|
|
|
|
#ifdef VERSION_adjtime
|
|
weak_alias (__adjtime, __wadjtime);
|
|
default_symbol_version (__wadjtime, adjtime, VERSION_adjtime);
|
|
#else
|
|
weak_alias (__adjtime, adjtime)
|
|
#endif
|