diff options
| -rw-r--r-- | include/time.h | 5 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/Makefile | 2 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/syscalls.list | 1 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/timerfd_settime.c | 87 |
4 files changed, 93 insertions, 2 deletions
diff --git a/include/time.h b/include/time.h index eb5082b4d7..f23bfea737 100644 --- a/include/time.h +++ b/include/time.h @@ -191,11 +191,16 @@ libc_hidden_proto (__timerfd_gettime64); #if __TIMESIZE == 64 # define __timer_settime64 __timer_settime +# define __timerfd_settime64 __timerfd_settime #else extern int __timer_settime64 (timer_t timerid, int flags, const struct __itimerspec64 *value, struct __itimerspec64 *ovalue); +extern int __timerfd_settime64 (int fd, int flags, + const struct __itimerspec64 *value, + struct __itimerspec64 *ovalue); libc_hidden_proto (__timer_settime64); +libc_hidden_proto (__timerfd_settime64); #endif /* Compute the `struct tm' representation of T, diff --git a/sysdeps/unix/sysv/linux/Makefile b/sysdeps/unix/sysv/linux/Makefile index 74923740b9..11c13cfb0d 100644 --- a/sysdeps/unix/sysv/linux/Makefile +++ b/sysdeps/unix/sysv/linux/Makefile @@ -61,7 +61,7 @@ sysdep_routines += adjtimex clone umount umount2 readahead \ eventfd eventfd_read eventfd_write prlimit \ personality epoll_wait tee vmsplice splice \ open_by_handle_at mlock2 pkey_mprotect pkey_set pkey_get \ - timerfd_gettime + timerfd_gettime timerfd_settime CFLAGS-gethostid.c = -fexceptions CFLAGS-tee.c = -fexceptions -fasynchronous-unwind-tables diff --git a/sysdeps/unix/sysv/linux/syscalls.list b/sysdeps/unix/sysv/linux/syscalls.list index adb9055ce2..1fa546f231 100644 --- a/sysdeps/unix/sysv/linux/syscalls.list +++ b/sysdeps/unix/sysv/linux/syscalls.list @@ -93,7 +93,6 @@ fremovexattr - fremovexattr i:is fremovexattr mq_setattr - mq_getsetattr i:ipp mq_setattr timerfd_create EXTRA timerfd_create i:ii timerfd_create -timerfd_settime EXTRA timerfd_settime i:iipp timerfd_settime fanotify_init EXTRA fanotify_init i:ii fanotify_init diff --git a/sysdeps/unix/sysv/linux/timerfd_settime.c b/sysdeps/unix/sysv/linux/timerfd_settime.c new file mode 100644 index 0000000000..164b4e860a --- /dev/null +++ b/sysdeps/unix/sysv/linux/timerfd_settime.c @@ -0,0 +1,87 @@ +/* timerfd_settime -- start or stop the timer referred to by file descriptor. + Copyright (C) 2020 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 <https://www.gnu.org/licenses/>. */ + +#include <errno.h> +#include <stdlib.h> +#include <time.h> +#include <sysdep.h> +#include <kernel-features.h> + +int +__timerfd_settime64 (int fd, int flags, const struct __itimerspec64 *value, + struct __itimerspec64 *ovalue) +{ +#ifdef __ASSUME_TIME64_SYSCALLS +# ifndef __NR_timerfd_settime64 +# define __NR_timerfd_settime64 __NR_timerfd_settime +# endif + return INLINE_SYSCALL_CALL (timerfd_settime64, fd, flags, value, ovalue); +#else +# ifdef __NR_timerfd_settime64 + int ret = INLINE_SYSCALL_CALL (timerfd_settime64, fd, flags, value, ovalue); + if (ret == 0 || errno != ENOSYS) + return ret; +# endif + struct itimerspec its32, oits32; + + if (! in_time_t_range ((value->it_value).tv_sec) + || ! in_time_t_range ((value->it_interval).tv_sec)) + { + __set_errno (EOVERFLOW); + return -1; + } + + its32.it_interval = valid_timespec64_to_timespec (value->it_interval); + its32.it_value = valid_timespec64_to_timespec (value->it_value); + + int retval = INLINE_SYSCALL_CALL (timerfd_settime, fd, flags, + &its32, ovalue ? &oits32 : NULL); + if (retval == 0 && ovalue) + { + ovalue->it_interval = valid_timespec_to_timespec64 (oits32.it_interval); + ovalue->it_value = valid_timespec_to_timespec64 (oits32.it_value); + } + + return retval; +#endif +} + +#if __TIMESIZE != 64 +libc_hidden_def (__timerfd_settime64) + +int +__timerfd_settime (int fd, int flags, const struct itimerspec *value, + struct itimerspec *ovalue) +{ + struct __itimerspec64 its64, oits64; + int retval; + + its64.it_interval = valid_timespec_to_timespec64 (value->it_interval); + its64.it_value = valid_timespec_to_timespec64 (value->it_value); + + retval = __timerfd_settime64 (fd, flags, &its64, ovalue ? &oits64 : NULL); + if (retval == 0 && ovalue) + { + ovalue->it_interval = valid_timespec64_to_timespec (oits64.it_interval); + ovalue->it_value = valid_timespec64_to_timespec (oits64.it_value); + } + + return retval; +} +#endif +strong_alias (__timerfd_settime, timerfd_settime) |