1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #ifndef _SYS_DEVCACHE_H 27 #define _SYS_DEVCACHE_H 28 29 #ifdef __cplusplus 30 extern "C" { 31 #endif 32 33 #include <sys/list.h> 34 35 #ifdef _KERNEL 36 37 /* 38 * Handle reference to a registered file 39 */ 40 typedef struct __nvf_handle *nvf_handle_t; 41 42 /* 43 * Registration descriptor for a cache file within /etc/devices 44 * 45 * path - cache file path path 46 * unpack_list - when reading, called to unpack nvlist 47 * pack_list - when writing, called to pack nvlist 48 * list_free - free data contained within list 49 * write_complete - called when write is completed 50 */ 51 typedef struct nvf_ops { 52 char *nvfr_cache_path; 53 int (*nvfr_unpack_nvlist)(nvf_handle_t, nvlist_t *, char *); 54 int (*nvfr_pack_list)(nvf_handle_t, nvlist_t **); 55 void (*nvfr_list_free)(nvf_handle_t); 56 void (*nvfr_write_complete)(nvf_handle_t); 57 } nvf_ops_t; 58 59 /* 60 * Client interfaces 61 */ 62 63 nvf_handle_t nvf_register_file(nvf_ops_t *); 64 int nvf_read_file(nvf_handle_t); 65 void nvf_wake_daemon(void); 66 void nvf_error(const char *, ...); 67 char *nvf_cache_name(nvf_handle_t); 68 krwlock_t *nvf_lock(nvf_handle_t); 69 list_t *nvf_list(nvf_handle_t); 70 void nvf_mark_dirty(nvf_handle_t); 71 int nvf_is_dirty(nvf_handle_t); 72 73 #endif /* _KERNEL */ 74 75 #ifdef __cplusplus 76 } 77 #endif 78 79 #endif /* _SYS_DEVCACHE_H */ 80