mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-26 04:31:03 +00:00
fd31691c67
With arch-syscall.h it can now assumes the existance of either __NR_sched_rr_get_interval or __NR_sched_rr_get_interval_time64. The 32-bit time_t support is now only build for !__ASSUME_TIME64_SYSCALLS. Checked on x86_64-linux-gnu and i686-linux-gnu (on 5.4 and on 4.15 kernel). Reviewed-by: Lukasz Majewski <lukma@denx.de>
70 lines
2.0 KiB
C
70 lines
2.0 KiB
C
/* sched_rr_get_interval -- get the scheduler's SCHED_RR policy time interval.
|
|
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
|
|
__sched_rr_get_interval64 (pid_t pid, struct __timespec64 *tp)
|
|
{
|
|
#ifndef __NR_sched_rr_get_interval_time64
|
|
# define __NR_sched_rr_get_interval_time64 __NR_sched_rr_get_interval
|
|
#endif
|
|
int ret = INLINE_SYSCALL_CALL (sched_rr_get_interval_time64, pid, tp);
|
|
#ifndef __ASSUME_TIME64_SYSCALLS
|
|
if (ret == 0 || errno != ENOSYS)
|
|
return ret;
|
|
|
|
struct timespec tp32;
|
|
ret = INLINE_SYSCALL_CALL (sched_rr_get_interval, pid, &tp32);
|
|
if (ret == 0)
|
|
*tp = valid_timespec_to_timespec64 (tp32);
|
|
#endif
|
|
return ret;
|
|
}
|
|
|
|
#if __TIMESIZE != 64
|
|
libc_hidden_def (__sched_rr_get_interval64)
|
|
|
|
int
|
|
__sched_rr_get_interval (pid_t pid, struct timespec *tp)
|
|
{
|
|
int ret;
|
|
struct __timespec64 tp64;
|
|
|
|
ret = __sched_rr_get_interval64 (pid, &tp64);
|
|
|
|
if (ret == 0)
|
|
{
|
|
if (! in_time_t_range (tp64.tv_sec))
|
|
{
|
|
__set_errno (EOVERFLOW);
|
|
return -1;
|
|
}
|
|
|
|
*tp = valid_timespec64_to_timespec (tp64);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
#endif
|
|
strong_alias (__sched_rr_get_interval, sched_rr_get_interval)
|