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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.
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Copyright (C) 2020 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public License as
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published by the Free Software Foundation; either version 2.1 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; see the file COPYING.LIB. If
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not, see <https://www.gnu.org/licenses/>. */
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#include <errno.h>
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#include <stdlib.h>
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#include <time.h>
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#include <sysdep.h>
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#include <kernel-features.h>
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int
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__sched_rr_get_interval64 (pid_t pid, struct __timespec64 *tp)
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{
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#ifndef __NR_sched_rr_get_interval_time64
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# define __NR_sched_rr_get_interval_time64 __NR_sched_rr_get_interval
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#endif
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int ret = INLINE_SYSCALL_CALL (sched_rr_get_interval_time64, pid, tp);
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#ifndef __ASSUME_TIME64_SYSCALLS
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if (ret == 0 || errno != ENOSYS)
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return ret;
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struct timespec tp32;
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ret = INLINE_SYSCALL_CALL (sched_rr_get_interval, pid, &tp32);
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if (ret == 0)
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*tp = valid_timespec_to_timespec64 (tp32);
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#endif
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return ret;
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}
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#if __TIMESIZE != 64
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libc_hidden_def (__sched_rr_get_interval64)
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int
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__sched_rr_get_interval (pid_t pid, struct timespec *tp)
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{
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int ret;
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struct __timespec64 tp64;
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ret = __sched_rr_get_interval64 (pid, &tp64);
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if (ret == 0)
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{
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if (! in_time_t_range (tp64.tv_sec))
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{
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__set_errno (EOVERFLOW);
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return -1;
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}
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*tp = valid_timespec64_to_timespec (tp64);
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}
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return ret;
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}
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#endif
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strong_alias (__sched_rr_get_interval, sched_rr_get_interval)
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