1/* timerfd_gettime -- get the timer setting referred to by file descriptor.
2 Copyright (C) 2020-2023 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public License as
7 published by the Free Software Foundation; either version 2.1 of the
8 License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; see the file COPYING.LIB. If
17 not, see <https://www.gnu.org/licenses/>. */
18
19#include <errno.h>
20#include <stdlib.h>
21#include <time.h>
22#include <sysdep.h>
23#include <kernel-features.h>
24
25int
26__timerfd_gettime64 (int fd, struct __itimerspec64 *value)
27{
28#ifndef __NR_timerfd_gettime64
29# define __NR_timerfd_gettime64 __NR_timerfd_gettime
30#endif
31
32#ifdef __ASSUME_TIME64_SYSCALLS
33 return INLINE_SYSCALL_CALL (timerfd_gettime64, fd, value);
34#else
35 int ret = INLINE_SYSCALL_CALL (timerfd_gettime64, fd, value);
36 if (ret == 0 || errno != ENOSYS)
37 return ret;
38 struct itimerspec its32;
39 int retval = INLINE_SYSCALL_CALL (timerfd_gettime, fd, &its32);
40 if (retval == 0)
41 {
42 value->it_interval = valid_timespec_to_timespec64 (its32.it_interval);
43 value->it_value = valid_timespec_to_timespec64 (its32.it_value);
44 }
45
46 return retval;
47#endif
48}
49
50#if __TIMESIZE != 64
51libc_hidden_def (__timerfd_gettime64)
52
53int
54__timerfd_gettime (int fd, struct itimerspec *value)
55{
56 struct __itimerspec64 its64;
57 int retval = __timerfd_gettime64 (fd, &its64);
58 if (retval == 0)
59 {
60 value->it_interval = valid_timespec64_to_timespec (its64.it_interval);
61 value->it_value = valid_timespec64_to_timespec (its64.it_value);
62 }
63
64 return retval;
65}
66#endif
67strong_alias (__timerfd_gettime, timerfd_gettime)
68