/*
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* Copyright (C) 2008 Philippe Gerum <rpm@xenomai.org>.
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*
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* This 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
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This 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 this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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*/
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#ifndef _LIB_COBALT_INTERNAL_H
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#define _LIB_COBALT_INTERNAL_H
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#include <limits.h>
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#include <stdbool.h>
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#include <time.h>
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#include <boilerplate/ancillaries.h>
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#include <cobalt/sys/cobalt.h>
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#include "current.h"
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extern void *cobalt_umm_private;
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extern void *cobalt_umm_shared;
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static inline int cobalt_is_relaxed(void)
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{
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return cobalt_get_current_mode() & XNRELAX;
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}
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static inline int cobalt_should_warn(void)
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{
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return (cobalt_get_current_mode() & (XNRELAX|XNWARN)) == XNWARN;
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}
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#ifdef CONFIG_XENO_LAZY_SETSCHED
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static inline int cobalt_eager_setsched(void)
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{
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return cobalt_is_relaxed();
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}
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#else
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static inline int cobalt_eager_setsched(void)
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{
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return 1;
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}
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#endif
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static inline
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struct cobalt_mutex_state *mutex_get_state(struct cobalt_mutex_shadow *shadow)
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{
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if (shadow->attr.pshared)
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return cobalt_umm_shared + shadow->state_offset;
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return cobalt_umm_private + shadow->state_offset;
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}
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static inline atomic_t *mutex_get_ownerp(struct cobalt_mutex_shadow *shadow)
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{
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return &mutex_get_state(shadow)->owner;
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}
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void cobalt_sigshadow_install_once(void);
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void cobalt_thread_init(void);
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int cobalt_thread_probe(pid_t pid);
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void cobalt_sched_init(void);
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void cobalt_print_init(void);
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void cobalt_print_init_atfork(void);
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void cobalt_ticks_init(unsigned long long freq);
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void cobalt_mutex_init(void);
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void cobalt_default_condattr_init(void);
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int cobalt_xlate_schedparam(int policy,
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const struct sched_param_ex *param_ex,
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struct sched_param *param);
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int cobalt_init(void);
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void *cobalt_lookup_vdso(const char *version, const char *name);
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extern struct sigaction __cobalt_orig_sigdebug;
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extern int __cobalt_std_fifo_minpri,
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__cobalt_std_fifo_maxpri;
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extern int __cobalt_std_rr_minpri,
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__cobalt_std_rr_maxpri;
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extern int (*__cobalt_vdso_gettime)(clockid_t clk_id,
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struct timespec *tp);
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extern unsigned int cobalt_features;
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struct cobalt_featinfo;
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/**
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* Arch specific feature initialization
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*
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* @param finfo
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*/
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void cobalt_arch_check_features(struct cobalt_featinfo *finfo);
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/**
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* Initialize the feature handling.
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*
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* @param f Feature info that will be cached for future feature checks
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*/
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void cobalt_features_init(struct cobalt_featinfo *f);
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/**
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* Check if a given set of features is available / provided by the kernel
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*
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* @param feat_mask A bit mask of features to check availability for. See
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* __xn_feat_* macros for a list of defined features
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*
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* @return true if all features are available, false otherwise
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*/
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static inline bool cobalt_features_available(unsigned int feat_mask)
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{
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return (cobalt_features & feat_mask) == feat_mask;
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}
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#endif /* _LIB_COBALT_INTERNAL_H */
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