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
29 #ifndef _SYS_MODULE_H_
30 #define _SYS_MODULE_H_
32 typedef enum modeventtype {
38 typedef struct module *module_t;
40 typedef int (*modeventhand_t)(module_t mod, int /*modeventtype_t*/ what,
44 * Struct for registering modules statically via SYSINIT.
46 typedef struct moduledata {
47 char *name; /* module name */
48 modeventhand_t evhand; /* event handler */
49 void *priv; /* extra data */
53 * A module can use this to report module specific data to
54 * the user via kldstat(2).
56 typedef union modspecific {
65 #define DECLARE_MODULE(name, data, sub, order) \
66 SYSINIT(name##module, sub, order, module_register_init, &data) \
69 void module_register_init(const void *data);
71 int module_register(const struct moduledata *data, struct linker_file *lf);
72 module_t module_lookupbyname(const char *name);
73 module_t module_lookupbyid(int modid);
74 void module_reference(module_t mod);
75 void module_release(module_t mod);
76 int module_unload(module_t mod);
77 int module_getid(module_t mod);
78 module_t module_getfnext(module_t mod);
79 void module_setspecific(module_t mod, modspecific_t *datap);
84 #define MOD_DEBUG_REFS 1
86 #define MOD_DPF(cat, args) \
88 if (mod_debug & MOD_DEBUG_##cat) printf args; \
93 #define MOD_DPF(cat, args)
102 int version; /* set to sizeof(struct module_stat) */
103 char name[MAXMODNAME];
111 #include <sys/cdefs.h>
114 int modnext(int modid);
115 int modfnext(int modid);
116 int modstat(int modid, struct module_stat* stat);
117 int modfind(const char *name);
122 #endif /* !_SYS_MODULE_H_ */