/usr/include/xenomai/native/sem.h is in libxenomai-dev 2.6.4+dfsg-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 | /**
* @file
* This file is part of the Xenomai project.
*
* @note Copyright (C) 2004 Philippe Gerum <rpm@xenomai.org>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef _XENO_SEM_H
#define _XENO_SEM_H
#include <nucleus/synch.h>
#include <native/types.h>
/* Creation flags. */
#define S_PRIO XNSYNCH_PRIO /* Pend by task priority order. */
#define S_FIFO XNSYNCH_FIFO /* Pend by FIFO order. */
#define S_PULSE 0x100 /* Apply pulse mode. */
typedef struct rt_sem_info {
unsigned long count; /* !< Current semaphore value. */
int nwaiters; /* !< Number of pending tasks. */
char name[XNOBJECT_NAME_LEN]; /* !< Symbolic name. */
} RT_SEM_INFO;
typedef struct rt_sem_placeholder {
xnhandle_t opaque;
} RT_SEM_PLACEHOLDER;
#if (defined(__KERNEL__) || defined(__XENO_SIM__)) && !defined(DOXYGEN_CPP)
#include <native/ppd.h>
#define XENO_SEM_MAGIC 0x55550303
typedef struct rt_sem {
unsigned magic; /* !< Magic code - must be first */
xnsynch_t synch_base; /* !< Base synchronization object. */
unsigned long count; /* !< Current semaphore value. */
int mode; /* !< Creation mode. */
xnhandle_t handle; /* !< Handle in registry -- zero if unregistered. */
char name[XNOBJECT_NAME_LEN]; /* !< Symbolic name. */
#ifdef CONFIG_XENO_OPT_PERVASIVE
pid_t cpid; /* !< Creator's pid. */
#endif /* CONFIG_XENO_OPT_PERVASIVE */
xnholder_t rlink; /* !< Link in resource queue. */
#define rlink2sem(ln) container_of(ln, RT_SEM, rlink)
xnqueue_t *rqueue; /* !< Backpointer to resource queue. */
} RT_SEM;
#ifdef __cplusplus
extern "C" {
#endif
#ifdef CONFIG_XENO_OPT_NATIVE_SEM
int __native_sem_pkg_init(void);
void __native_sem_pkg_cleanup(void);
static inline void __native_sem_flush_rq(xnqueue_t *rq)
{
xeno_flush_rq(RT_SEM, rq, sem);
}
int rt_sem_p_inner(RT_SEM *sem,
xntmode_t timeout_mode, RTIME timeout);
#else /* !CONFIG_XENO_OPT_NATIVE_SEM */
#define __native_sem_pkg_init() ({ 0; })
#define __native_sem_pkg_cleanup() do { } while(0)
#define __native_sem_flush_rq(rq) do { } while(0)
#endif /* !CONFIG_XENO_OPT_NATIVE_SEM */
#ifdef __cplusplus
}
#endif
#else /* !(__KERNEL__ || __XENO_SIM__) */
typedef RT_SEM_PLACEHOLDER RT_SEM;
#ifdef __cplusplus
extern "C" {
#endif
int rt_sem_bind(RT_SEM *sem,
const char *name,
RTIME timeout);
static inline int rt_sem_unbind (RT_SEM *sem)
{
sem->opaque = XN_NO_HANDLE;
return 0;
}
#ifdef __cplusplus
}
#endif
#endif /* __KERNEL__ || __XENO_SIM__ */
#ifdef __cplusplus
extern "C" {
#endif
/* Public interface. */
int rt_sem_create(RT_SEM *sem,
const char *name,
unsigned long icount,
int mode);
int rt_sem_delete(RT_SEM *sem);
int rt_sem_p(RT_SEM *sem,
RTIME timeout);
int rt_sem_p_until(RT_SEM *sem,
RTIME timeout);
int rt_sem_v(RT_SEM *sem);
int rt_sem_broadcast(RT_SEM *sem);
int rt_sem_inquire(RT_SEM *sem,
RT_SEM_INFO *info);
#ifdef __cplusplus
}
#endif
#endif /* !_XENO_SEM_H */
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