2 * Copyright (c) 1997 Doug Rabson
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * $FreeBSD: src/sys/sys/module.h,v 1.14.2.3 2002/03/17 11:07:45 alfred Exp $
27 * $DragonFly: src/sys/sys/module.h,v 1.2 2003/06/17 04:28:58 dillon Exp $
30 #ifndef _SYS_MODULE_H_
31 #define _SYS_MODULE_H_
33 typedef enum modeventtype {
39 typedef struct module *module_t;
41 typedef int (*modeventhand_t)(module_t mod, int /*modeventtype_t*/ what,
45 * Struct for registering modules statically via SYSINIT.
47 typedef struct moduledata {
48 const char *name; /* module name */
49 modeventhand_t evhand; /* event handler */
50 void *priv; /* extra data */
54 * A module can use this to report module specific data to
55 * the user via kldstat(2).
57 typedef union modspecific {
66 #define MODULE_METADATA(uniquifier, type, data, cval)
68 #define MODULE_DEPEND(mod, dep, min, pref, max)
70 #define DECLARE_MODULE(name, data, sub, order) \
71 SYSINIT(name##module, sub, order, module_register_init, &data) \
74 #define MODULE_VERSION(mod, ver)
76 void module_register_init(const void *data);
78 int module_register(const struct moduledata *data, struct linker_file *lf);
79 module_t module_lookupbyname(const char *name);
80 module_t module_lookupbyid(int modid);
81 void module_reference(module_t mod);
82 void module_release(module_t mod);
83 int module_unload(module_t mod);
84 int module_getid(module_t mod);
85 module_t module_getfnext(module_t mod);
86 void module_setspecific(module_t mod, modspecific_t *datap);
91 #define MOD_DEBUG_REFS 1
93 #define MOD_DPF(cat, args) \
95 if (mod_debug & MOD_DEBUG_##cat) printf args; \
100 #define MOD_DPF(cat, args)
106 #define MAXMODNAME 32
109 int version; /* set to sizeof(struct module_stat) */
110 char name[MAXMODNAME];
118 #include <sys/cdefs.h>
121 int modnext(int _modid);
122 int modfnext(int _modid);
123 int modstat(int _modid, struct module_stat* _stat);
124 int modfind(const char *_name);
129 #endif /* !_SYS_MODULE_H_ */