1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 1997 Doug Rabson 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #ifndef _SYS_MODULE_H_ 30 #define _SYS_MODULE_H_ 31 32 33 typedef enum modeventtype { 34 MOD_LOAD, 35 MOD_UNLOAD, 36 MOD_SHUTDOWN, 37 MOD_QUIESCE 38 } modeventtype_t; 39 40 typedef struct module *module_t; 41 typedef int (*modeventhand_t)(module_t, int /* modeventtype_t */, void *); 42 43 /* 44 * Struct for registering modules statically via SYSINIT. 45 */ 46 typedef struct moduledata { 47 const char *name; /* module name */ 48 modeventhand_t evhand; /* event handler */ 49 void *priv; /* extra data */ 50 } moduledata_t; 51 52 53 #define MODULE_DEPEND(module, mdepend, vmin, vpref, vmax) 54 #define DECLARE_MODULE(name, data, sub, order) 55 56 57 #endif /* !_SYS_MODULE_H_ */ 58