glibc/sysdeps/unix/sysv/linux/timerfd_gettime.c
Adhemerval Zanella 4b6551902e linux: timerfd_gettime minor cleanup
The __NR_timerfd_gettime64 is always defined.

Reviewed-by: Lukasz Majewski <lukma@denx.de>
2021-06-22 12:09:52 -03:00

68 lines
2.1 KiB
C

/* timerfd_gettime -- get the timer setting referred to by file descriptor.
Copyright (C) 2020-2021 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_gettime64 (int fd, struct __itimerspec64 *value)
{
#ifndef __NR_timerfd_gettime64
# define __NR_timerfd_gettime64 __NR_timerfd_gettime
#endif
#ifdef __ASSUME_TIME64_SYSCALLS
return INLINE_SYSCALL_CALL (timerfd_gettime64, fd, value);
#else
int ret = INLINE_SYSCALL_CALL (timerfd_gettime64, fd, value);
if (ret == 0 || errno != ENOSYS)
return ret;
struct itimerspec its32;
int retval = INLINE_SYSCALL_CALL (timerfd_gettime, fd, &its32);
if (retval == 0)
{
value->it_interval = valid_timespec_to_timespec64 (its32.it_interval);
value->it_value = valid_timespec_to_timespec64 (its32.it_value);
}
return retval;
#endif
}
#if __TIMESIZE != 64
libc_hidden_def (__timerfd_gettime64)
int
__timerfd_gettime (int fd, struct itimerspec *value)
{
struct __itimerspec64 its64;
int retval = __timerfd_gettime64 (fd, &its64);
if (retval == 0)
{
value->it_interval = valid_timespec64_to_timespec (its64.it_interval);
value->it_value = valid_timespec64_to_timespec (its64.it_value);
}
return retval;
}
#endif
strong_alias (__timerfd_gettime, timerfd_gettime)