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/* timerfd_settime -- start or stop the timer referred to by file descriptor.
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 <kernel-features.h>
int
__timerfd_settime64 (int fd, int flags, const struct __itimerspec64 *value,
struct __itimerspec64 *ovalue)
{
#ifndef __NR_timerfd_settime64
# define __NR_timerfd_settime64 __NR_timerfd_settime
#endif
#ifdef __ASSUME_TIME64_SYSCALLS
return INLINE_SYSCALL_CALL (timerfd_settime64, fd, flags, value, ovalue);
#else
bool need_time64 = !in_int32_t_range (value->it_value.tv_sec)
|| !in_int32_t_range (value->it_interval.tv_sec);
if (need_time64)
{
int r = INLINE_SYSCALL_CALL (timerfd_settime64, fd, flags, value,
ovalue);
if (r == 0 || errno != ENOSYS)
return r;
__set_errno (EOVERFLOW);
return r;
}
struct itimerspec its32, oits32;
its32.it_interval = valid_timespec64_to_timespec (value->it_interval);
its32.it_value = valid_timespec64_to_timespec (value->it_value);
int ret = INLINE_SYSCALL_CALL (timerfd_settime, fd, flags,
&its32, ovalue != NULL ? &oits32 : NULL);
if (ret == 0 && ovalue != NULL)
{
ovalue->it_interval = valid_timespec_to_timespec64 (oits32.it_interval);
ovalue->it_value = valid_timespec_to_timespec64 (oits32.it_value);
}
return ret;
#endif
}
#if __TIMESIZE != 64
libc_hidden_def (__timerfd_settime64)
int
__timerfd_settime (int fd, int flags, const struct itimerspec *value,
struct itimerspec *ovalue)
{
struct __itimerspec64 its64, oits64;
int retval;
its64.it_interval = valid_timespec_to_timespec64 (value->it_interval);
its64.it_value = valid_timespec_to_timespec64 (value->it_value);
retval = __timerfd_settime64 (fd, flags, &its64, ovalue ? &oits64 : NULL);
if (retval == 0 && ovalue)
{
ovalue->it_interval = valid_timespec64_to_timespec (oits64.it_interval);
ovalue->it_value = valid_timespec64_to_timespec (oits64.it_value);
}
return retval;
}
#endif
strong_alias (__timerfd_settime, timerfd_settime)
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