/usr/include/xenomai/nucleus/registry.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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 | /**
* @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.
*
* \ingroup registry
*/
#ifndef _XENO_NUCLEUS_REGISTRY_H
#define _XENO_NUCLEUS_REGISTRY_H
#include <nucleus/types.h>
#define XNOBJECT_SELF XN_NO_HANDLE
#if defined(__KERNEL__) || defined(__XENO_SIM__)
#include <nucleus/synch.h>
#include <nucleus/vfile.h>
struct xnpnode;
typedef struct xnobject {
void *objaddr;
const char *key; /* !< Hash key. */
struct xnsynch safesynch; /* !< Safe synchronization object. */
u_long safelock; /* !< Safe lock count. */
u_long cstamp; /* !< Creation stamp. */
#ifdef CONFIG_XENO_OPT_VFILE
struct xnpnode *pnode; /* !< v-file information class. */
union {
struct {
struct xnvfile_rev_tag tag;
struct xnvfile_snapshot file;
} vfsnap; /* !< virtual snapshot file. */
struct xnvfile_regular vfreg; /* !< virtual regular file */
struct xnvfile_link link; /* !< virtual link. */
} vfile_u;
struct xnvfile *vfilp;
#endif /* CONFIG_XENO_OPT_VFILE */
struct xnobject *hnext; /* !< Next in h-table */
struct xnholder link;
} xnobject_t;
#define link2xnobj(ln) container_of(ln, struct xnobject, link)
#ifdef __cplusplus
extern "C" {
#endif
int xnregistry_init(void);
void xnregistry_cleanup(void);
#ifdef CONFIG_XENO_OPT_VFILE
#define XNOBJECT_PNODE_RESERVED1 ((struct xnvfile *)1)
#define XNOBJECT_PNODE_RESERVED2 ((struct xnvfile *)2)
struct xnptree {
const char *dirname;
/* hidden */
int entries;
struct xnvfile_directory vdir;
};
#define DEFINE_XNPTREE(__var, __name) \
struct xnptree __var = { \
.dirname = __name, \
.entries = 0, \
.vdir = xnvfile_nodir, \
}
struct xnpnode_ops {
int (*export)(struct xnobject *object, struct xnpnode *pnode);
void (*unexport)(struct xnobject *object, struct xnpnode *pnode);
void (*touch)(struct xnobject *object);
};
struct xnpnode {
const char *dirname;
struct xnptree *root;
struct xnpnode_ops *ops;
/* hidden */
int entries;
struct xnvfile_directory vdir;
};
struct xnpnode_snapshot {
struct xnpnode node;
struct xnvfile_snapshot_template vfile;
};
struct xnpnode_regular {
struct xnpnode node;
struct xnvfile_regular_template vfile;
};
struct xnpnode_link {
struct xnpnode node;
char *(*target)(void *obj);
};
#else /* !CONFIG_XENO_OPT_VFILE */
#define DEFINE_XNPTREE(__var, __name);
/* Placeholders. */
struct xnpnode {
const char *dirname;
};
struct xnpnode_snapshot {
struct xnpnode node;
};
struct xnpnode_regular {
struct xnpnode node;
};
struct xnpnode_link {
struct xnpnode node;
};
#endif /* !CONFIG_XENO_OPT_VFILE */
extern struct xnobject *registry_obj_slots;
/* Public interface. */
extern struct xnobject *registry_obj_slots;
static inline struct xnobject *xnregistry_validate(xnhandle_t handle)
{
struct xnobject *object;
/*
* Careful: a removed object which is still in flight to be
* unexported carries a NULL objaddr, so we have to check this
* as well.
*/
if (likely(handle && handle < CONFIG_XENO_OPT_REGISTRY_NRSLOTS)) {
object = ®istry_obj_slots[handle];
return object->objaddr ? object : NULL;
}
return NULL;
}
static inline void *xnregistry_lookup(xnhandle_t handle)
{
struct xnobject *object = xnregistry_validate(handle);
return object ? object->objaddr : NULL;
}
int xnregistry_enter(const char *key,
void *objaddr,
xnhandle_t *phandle,
struct xnpnode *pnode);
int xnregistry_bind(const char *key,
xnticks_t timeout,
int timeout_mode,
xnhandle_t *phandle);
int xnregistry_remove(xnhandle_t handle);
int xnregistry_remove_safe(xnhandle_t handle,
xnticks_t timeout);
void *xnregistry_get(xnhandle_t handle);
void *xnregistry_fetch(xnhandle_t handle);
u_long xnregistry_put(xnhandle_t handle);
#ifdef __cplusplus
}
#endif
extern struct xnpnode_ops xnregistry_vfsnap_ops;
extern struct xnpnode_ops xnregistry_vlink_ops;
#endif /* __KERNEL__ || __XENO_SIM__ */
#endif /* !_XENO_NUCLEUS_REGISTRY_H */
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