mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-26 23:10:06 +00:00
86 lines
2.8 KiB
C
86 lines
2.8 KiB
C
/* 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)
|