Xenomai 3.3.2
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sched-weak.h
1/*
2 * Copyright (C) 2013 Philippe Gerum <rpm@xenomai.org>.
3 *
4 * Xenomai is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published
6 * by the Free Software Foundation; either version 2 of the License,
7 * or (at your option) any later version.
8 *
9 * Xenomai is distributed in the hope that it will be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with Xenomai; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
17 * 02111-1307, USA.
18 */
19#ifndef _COBALT_KERNEL_SCHED_WEAK_H
20#define _COBALT_KERNEL_SCHED_WEAK_H
21
22#ifndef _COBALT_KERNEL_SCHED_H
23#error "please don't include cobalt/kernel/sched-weak.h directly"
24#endif
25
31#ifdef CONFIG_XENO_OPT_SCHED_WEAK
32
33#define XNSCHED_WEAK_MIN_PRIO 0
34#define XNSCHED_WEAK_MAX_PRIO 99
35#define XNSCHED_WEAK_NR_PRIO \
36 (XNSCHED_WEAK_MAX_PRIO - XNSCHED_WEAK_MIN_PRIO + 1)
37
38#if XNSCHED_WEAK_NR_PRIO > XNSCHED_CLASS_WEIGHT_FACTOR || \
39 (defined(CONFIG_XENO_OPT_SCALABLE_SCHED) && \
40 XNSCHED_WEAK_NR_PRIO > XNSCHED_MLQ_LEVELS)
41#error "WEAK class has too many priority levels"
42#endif
43
44extern struct xnsched_class xnsched_class_weak;
45
46struct xnsched_weak {
47 xnsched_queue_t runnable;
48};
49
50static inline int xnsched_weak_init_thread(struct xnthread *thread)
51{
52 return 0;
53}
54
55#endif /* CONFIG_XENO_OPT_SCHED_WEAK */
56
59#endif /* !_COBALT_KERNEL_SCHED_WEAK_H */