1/* timerfd_gettime -- get the timer setting referred to by file descriptor.
2 Copyright (C) 2020-2021 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#ifdef __ASSUME_TIME64_SYSCALLS
29# ifndef __NR_timerfd_gettime64
30# define __NR_timerfd_gettime64 __NR_timerfd_gettime
31# endif
32 return INLINE_SYSCALL_CALL (timerfd_gettime64, fd, value);
33#else
34# ifdef __NR_timerfd_gettime64
35 int ret = INLINE_SYSCALL_CALL (timerfd_gettime64, fd, value);
36 if (ret == 0 || errno != ENOSYS)
37 return ret;
38# endif
39 struct itimerspec its32;
40 int retval = INLINE_SYSCALL_CALL (timerfd_gettime, fd, &its32);
41 if (retval == 0)
42 {
43 value->it_interval = valid_timespec_to_timespec64 (its32.it_interval);
44 value->it_value = valid_timespec_to_timespec64 (its32.it_value);
45 }
46
47 return retval;
48#endif
49}
50
51#if __TIMESIZE != 64
52libc_hidden_def (__timerfd_gettime64)
53
54int
55__timerfd_gettime (int fd, struct itimerspec *value)
56{
57 struct __itimerspec64 its64;
58 int retval = __timerfd_gettime64 (fd, &its64);
59 if (retval == 0)
60 {
61 value->it_interval = valid_timespec64_to_timespec (its64.it_interval);
62 value->it_value = valid_timespec64_to_timespec (its64.it_value);
63 }
64
65 return retval;
66}
67#endif
68strong_alias (__timerfd_gettime, timerfd_gettime)
69