From c08076eb6a06db390ef2297812c0369946cf41b9 Mon Sep 17 00:00:00 2001 From: "Albert ARIBAUD (3ADEV)" Date: Fri, 8 Sep 2017 00:41:48 +0200 Subject: Y2038: add function __timerfd_gettime64 For Linux this uses the 32-bit time syscall so it converts the syscall output from 32-bit time to 64-bit time. --- sysdeps/unix/sysv/linux/timerfd_gettime64.c | 54 +++++++++++++++++++++++++++++ 1 file changed, 54 insertions(+) create mode 100644 sysdeps/unix/sysv/linux/timerfd_gettime64.c (limited to 'sysdeps/unix/sysv/linux/timerfd_gettime64.c') diff --git a/sysdeps/unix/sysv/linux/timerfd_gettime64.c b/sysdeps/unix/sysv/linux/timerfd_gettime64.c new file mode 100644 index 0000000000..51be6c725c --- /dev/null +++ b/sysdeps/unix/sysv/linux/timerfd_gettime64.c @@ -0,0 +1,54 @@ +/* Get current value of timer TIMERID and store it in VALUE. + + Copyright (C) 2018 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 . */ + +#include +#include +#include +#include +#include +#include "kernel-posix-timers.h" + +int +__timerfd_gettime64 (int fd, struct __itimerspec64 *value) +{ + int res; + struct itimerspec value32; + +#ifdef __NR_timerfd_gettime64 + if (__y2038_get_kernel_support () > 0) + { + res = INLINE_SYSCALL (timerfd_gettime64, 2, fd, value); + if (res == 0 || errno != ENOSYS) + return res; + __y2038_set_kernel_support (-1); + } +#endif + + res = INLINE_SYSCALL (timerfd_gettime, 2, fd, &value32); + + if (res == 0) + { + value->it_value.tv_sec = value32.it_value.tv_sec; + value->it_value.tv_nsec = value32.it_value.tv_nsec; + value->it_interval.tv_sec = value32.it_interval.tv_sec; + value->it_interval.tv_nsec = value32.it_interval.tv_nsec; + } + + return res; +} -- cgit v1.2.3-70-g09d2