1 /* $NetBSD: dev-cache.h,v 1.1.1.1 2008/12/22 00:17:55 haad Exp $ */
4 * Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
5 * Copyright (C) 2004-2007 Red Hat, Inc. All rights reserved.
7 * This file is part of LVM2.
9 * This copyrighted material is made available to anyone wishing to use,
10 * modify, copy, or redistribute it subject to the terms and conditions
11 * of the GNU Lesser General Public License v.2.1.
13 * You should have received a copy of the GNU Lesser General Public License
14 * along with this program; if not, write to the Free Software Foundation,
15 * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 #ifndef _LVM_DEV_CACHE_H
19 #define _LVM_DEV_CACHE_H
24 * predicate for devices.
27 int (*passes_filter) (struct dev_filter * f, struct device * dev);
28 void (*destroy) (struct dev_filter * f);
33 * The global device cache.
36 int dev_cache_init(struct cmd_context *cmd);
37 void dev_cache_exit(void);
39 /* Trigger(1) or avoid(0) a scan */
40 void dev_cache_scan(int do_scan);
41 int dev_cache_has_scanned(void);
43 int dev_cache_add_dir(const char *path);
44 int dev_cache_add_loopfile(const char *path);
45 struct device *dev_cache_get(const char *name, struct dev_filter *f);
47 void dev_set_preferred_name(struct str_list *sl, struct device *dev);
50 * Object for iterating through the cache.
53 struct dev_iter *dev_iter_create(struct dev_filter *f, int dev_scan);
54 void dev_iter_destroy(struct dev_iter *iter);
55 struct device *dev_iter_get(struct dev_iter *iter);