1 /* timerfd_gettime -- get the timer setting referred to by file descriptor.
2 Copyright (C) 2020-2022 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
25 int
__timerfd_gettime64(int fd,struct __itimerspec64 * value)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
libc_hidden_def(__timerfd_gettime64)51 libc_hidden_def (__timerfd_gettime64)
52
53 int
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
67 strong_alias (__timerfd_gettime, timerfd_gettime)
68