| 1 | /* timerfd_gettime -- get the timer setting referred to by file descriptor. |
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| 2 | Copyright (C) 2020-2024 Free Software Foundation, Inc. |
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| 3 | This file is part of the GNU C Library. |
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| 4 | |
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| 5 | The GNU C Library is free software; you can redistribute it and/or |
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| 6 | modify it under the terms of the GNU Lesser General Public License as |
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| 7 | published by the Free Software Foundation; either version 2.1 of the |
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| 8 | License, or (at your option) any later version. |
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| 9 | |
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| 10 | The GNU C Library is distributed in the hope that it will be useful, |
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| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 13 | Lesser General Public License for more details. |
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| 14 | |
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| 15 | You should have received a copy of the GNU Lesser General Public |
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| 16 | License along with the GNU C Library; see the file COPYING.LIB. If |
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| 17 | not, see <https://www.gnu.org/licenses/>. */ |
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| 18 | |
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| 19 | #include <errno.h> |
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| 20 | #include <stdlib.h> |
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| 21 | #include <time.h> |
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| 22 | #include <sysdep.h> |
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| 23 | #include <kernel-features.h> |
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| 24 | |
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| 25 | int |
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| 26 | __timerfd_gettime64 (int fd, struct __itimerspec64 *value) |
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| 27 | { |
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| 28 | #ifndef __NR_timerfd_gettime64 |
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| 29 | # define __NR_timerfd_gettime64 __NR_timerfd_gettime |
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| 30 | #endif |
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| 31 | |
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| 32 | #ifdef __ASSUME_TIME64_SYSCALLS |
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| 33 | return INLINE_SYSCALL_CALL (timerfd_gettime64, fd, value); |
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| 34 | #else |
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| 35 | int ret = INLINE_SYSCALL_CALL (timerfd_gettime64, fd, value); |
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| 36 | if (ret == 0 || errno != ENOSYS) |
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| 37 | return ret; |
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| 38 | struct itimerspec its32; |
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| 39 | int retval = INLINE_SYSCALL_CALL (timerfd_gettime, fd, &its32); |
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| 40 | if (retval == 0) |
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| 41 | { |
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| 42 | value->it_interval = valid_timespec_to_timespec64 (its32.it_interval); |
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| 43 | value->it_value = valid_timespec_to_timespec64 (its32.it_value); |
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| 44 | } |
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| 45 | |
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| 46 | return retval; |
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| 47 | #endif |
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| 48 | } |
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| 49 | |
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| 50 | #if __TIMESIZE != 64 |
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| 51 | libc_hidden_def (__timerfd_gettime64) |
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| 52 | |
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| 53 | int |
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| 54 | __timerfd_gettime (int fd, struct itimerspec *value) |
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| 55 | { |
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| 56 | struct __itimerspec64 its64; |
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| 57 | int retval = __timerfd_gettime64 (fd, &its64); |
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| 58 | if (retval == 0) |
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| 59 | { |
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| 60 | value->it_interval = valid_timespec64_to_timespec (its64.it_interval); |
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| 61 | value->it_value = valid_timespec64_to_timespec (its64.it_value); |
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| 62 | } |
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| 63 | |
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| 64 | return retval; |
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| 65 | } |
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| 66 | #endif |
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| 67 | strong_alias (__timerfd_gettime, timerfd_gettime) |
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| 68 | |
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