Xenomai  3.1.2
internal.h
1 /*
2  * Copyright (C) 2008 Philippe Gerum <rpm@xenomai.org>.
3  *
4  * This library is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation; either
7  * version 2 of the License, or (at your option) any later version.
8  *
9  * This library is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12  * Lesser General Public License for more details.
13 
14  * You should have received a copy of the GNU Lesser General Public
15  * License along with this library; if not, write to the Free Software
16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
17  */
18 #ifndef _LIB_COBALT_INTERNAL_H
19 #define _LIB_COBALT_INTERNAL_H
20 
21 #include <limits.h>
22 #include <stdbool.h>
23 #include <boilerplate/ancillaries.h>
24 #include <cobalt/sys/cobalt.h>
25 #include "current.h"
26 
27 extern void *cobalt_umm_private;
28 
29 extern void *cobalt_umm_shared;
30 
31 static inline int cobalt_is_relaxed(void)
32 {
33  return cobalt_get_current_mode() & XNRELAX;
34 }
35 
36 static inline int cobalt_should_warn(void)
37 {
38  return (cobalt_get_current_mode() & (XNRELAX|XNWARN)) == XNWARN;
39 }
40 
41 #ifdef CONFIG_XENO_LAZY_SETSCHED
42 static inline int cobalt_eager_setsched(void)
43 {
44  return cobalt_is_relaxed();
45 }
46 #else
47 static inline int cobalt_eager_setsched(void)
48 {
49  return 1;
50 }
51 #endif
52 
53 static inline
54 struct cobalt_mutex_state *mutex_get_state(struct cobalt_mutex_shadow *shadow)
55 {
56  if (shadow->attr.pshared)
57  return cobalt_umm_shared + shadow->state_offset;
58 
59  return cobalt_umm_private + shadow->state_offset;
60 }
61 
62 static inline atomic_t *mutex_get_ownerp(struct cobalt_mutex_shadow *shadow)
63 {
64  return &mutex_get_state(shadow)->owner;
65 }
66 
67 void cobalt_sigshadow_install_once(void);
68 
69 void cobalt_thread_init(void);
70 
71 int cobalt_thread_probe(pid_t pid);
72 
73 void cobalt_sched_init(void);
74 
75 void cobalt_print_init(void);
76 
77 void cobalt_print_init_atfork(void);
78 
79 void cobalt_ticks_init(unsigned long long freq);
80 
81 void cobalt_mutex_init(void);
82 
83 void cobalt_default_condattr_init(void);
84 
85 int cobalt_xlate_schedparam(int policy,
86  const struct sched_param_ex *param_ex,
87  struct sched_param *param);
88 int cobalt_init(void);
89 
90 extern struct sigaction __cobalt_orig_sigdebug;
91 
92 extern int __cobalt_std_fifo_minpri,
93  __cobalt_std_fifo_maxpri;
94 
95 extern int __cobalt_std_rr_minpri,
96  __cobalt_std_rr_maxpri;
97 
98 extern unsigned int cobalt_features;
99 
100 struct cobalt_featinfo;
101 
107 void cobalt_arch_check_features(struct cobalt_featinfo *finfo);
108 
114 void cobalt_features_init(struct cobalt_featinfo *f);
115 
124 static inline bool cobalt_features_available(unsigned int feat_mask)
125 {
126  return (cobalt_features & feat_mask) == feat_mask;
127 }
128 
129 #endif /* _LIB_COBALT_INTERNAL_H */
#define XNWARN
Issue SIGDEBUG on error detection.
Definition: thread.h:46
#define XNRELAX
Relaxed shadow thread (blocking bit)
Definition: thread.h:39
Copyright © 2011 Gilles Chanteperdrix gilles.chanteperdrix@xenomai.org.
Definition: atomic.h:24