1 /* $NetBSD: config.h,v 1.1.1.2 2009/12/02 00:26:28 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
21 #include "lvm-types.h"
40 struct config_value *next; /* for arrays */
45 struct config_node *parent, *sib, *child;
46 struct config_value *v;
50 struct config_node *root;
53 struct config_tree_list {
55 struct config_tree *cft;
58 struct config_tree *create_config_tree(const char *filename, int keep_open);
59 struct config_tree *create_config_tree_from_string(struct cmd_context *cmd,
60 const char *config_settings);
61 int override_config_tree_from_string(struct cmd_context *cmd,
62 const char *config_settings);
63 void destroy_config_tree(struct config_tree *cft);
65 typedef uint32_t (*checksum_fn_t) (uint32_t initial, const void *buf, uint32_t size);
67 int read_config_fd(struct config_tree *cft, struct device *dev,
68 off_t offset, size_t size, off_t offset2, size_t size2,
69 checksum_fn_t checksum_fn, uint32_t checksum);
71 int read_config_file(struct config_tree *cft);
72 int write_config_file(struct config_tree *cft, const char *file,
73 int argc, char **argv);
75 typedef int (*putline_fn)(const char *line, void *baton);
76 int write_config_node(const struct config_node *cn, putline_fn putline, void *baton);
78 time_t config_file_timestamp(struct config_tree *cft);
79 int config_file_changed(struct config_tree *cft);
80 int merge_config_tree(struct cmd_context *cmd, struct config_tree *cft,
81 struct config_tree *newdata);
83 struct config_node *find_config_node(const struct config_node *cn,
85 const char *find_config_str(const struct config_node *cn, const char *path,
87 int find_config_int(const struct config_node *cn, const char *path, int fail);
88 float find_config_float(const struct config_node *cn, const char *path,
92 * These versions check an override tree, if present, first.
94 struct config_node *find_config_tree_node(struct cmd_context *cmd,
96 const char *find_config_tree_str(struct cmd_context *cmd,
97 const char *path, const char *fail);
98 int find_config_tree_int(struct cmd_context *cmd, const char *path,
100 float find_config_tree_float(struct cmd_context *cmd, const char *path,
104 * Understands (0, ~0), (y, n), (yes, no), (on,
105 * off), (true, false).
107 int find_config_bool(const struct config_node *cn, const char *path, int fail);
108 int find_config_tree_bool(struct cmd_context *cmd, const char *path, int fail);
110 int get_config_uint32(const struct config_node *cn, const char *path,
113 int get_config_uint64(const struct config_node *cn, const char *path,
116 int get_config_str(const struct config_node *cn, const char *path,
119 unsigned maybe_config_section(const char *str, unsigned len);
121 const char *config_parent_name(const struct config_node *n);
123 struct config_node *clone_config_node(struct dm_pool *mem, const struct config_node *cn,