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664a31e496
is an application space macro and the applications are supposed to be free to use it as they please (but cannot). This is consistant with the other BSD's who made this change quite some time ago. More commits to come.
122 lines
3.3 KiB
C
122 lines
3.3 KiB
C
/*-
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* Copyright (c) 1997 Doug Rabson
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _SYS_MODULE_H_
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#define _SYS_MODULE_H_
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typedef enum modeventtype {
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MOD_LOAD,
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MOD_UNLOAD,
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MOD_SHUTDOWN
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} modeventtype_t;
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typedef struct module *module_t;
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typedef int (*modeventhand_t)(module_t mod, int /*modeventtype_t*/ what,
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void *arg);
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/*
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* Struct for registering modules statically via SYSINIT.
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*/
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typedef struct moduledata {
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char *name; /* module name */
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modeventhand_t evhand; /* event handler */
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void *priv; /* extra data */
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} moduledata_t;
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/*
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* A module can use this to report module specific data to
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* the user via kldstat(2).
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*/
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typedef union modspecific {
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int intval;
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u_int uintval;
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long longval;
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u_long ulongval;
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} modspecific_t;
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#ifdef _KERNEL
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#define DECLARE_MODULE(name, data, sub, order) \
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SYSINIT(name##module, sub, order, module_register_init, &data) \
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struct __hack
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void module_register_init(const void *data);
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struct linker_file;
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int module_register(const struct moduledata *data, struct linker_file *lf);
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module_t module_lookupbyname(const char *name);
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module_t module_lookupbyid(int modid);
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void module_reference(module_t mod);
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void module_release(module_t mod);
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int module_unload(module_t mod);
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int module_getid(module_t mod);
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module_t module_getfnext(module_t mod);
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void module_setspecific(module_t mod, modspecific_t *datap);
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#ifdef MOD_DEBUG
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extern int mod_debug;
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#define MOD_DEBUG_REFS 1
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#define MOD_DPF(cat, args) \
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do { \
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if (mod_debug & MOD_DEBUG_##cat) printf args; \
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} while (0)
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#else
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#define MOD_DPF(cat, args)
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#endif
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#endif /* _KERNEL */
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#define MAXMODNAME 32
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struct module_stat {
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int version; /* set to sizeof(struct module_stat) */
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char name[MAXMODNAME];
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int refs;
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int id;
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modspecific_t data;
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};
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#ifndef _KERNEL
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#include <sys/cdefs.h>
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__BEGIN_DECLS
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int modnext(int modid);
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int modfnext(int modid);
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int modstat(int modid, struct module_stat* stat);
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int modfind(const char *name);
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__END_DECLS
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#endif
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#endif /* !_SYS_MODULE_H_ */
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