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2293567c8c
Add --config for overriding most config file settings from cmdline. Quote arguments when printing command line. Remove linefeed from 'initialising logging' message. Add 'Completed' debug message. Don't attempt library exit after reloading config files. Always compile with libdevmapper, even if device-mapper is disabled.
111 lines
3.2 KiB
C
111 lines
3.2 KiB
C
/*
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* Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
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* Copyright (C) 2004 Red Hat, Inc. All rights reserved.
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*
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* This file is part of LVM2.
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*
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* This copyrighted material is made available to anyone wishing to use,
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* modify, copy, or redistribute it subject to the terms and conditions
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* of the GNU General Public License v.2.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef _LVM_CONFIG_H
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#define _LVM_CONFIG_H
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#include "lvm-types.h"
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struct device;
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struct cmd_context;
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enum {
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CFG_STRING,
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CFG_FLOAT,
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CFG_INT,
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CFG_EMPTY_ARRAY
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};
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struct config_value {
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int type;
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union {
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int i;
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float r;
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char *str;
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} v;
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struct config_value *next; /* for arrays */
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};
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struct config_node {
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char *key;
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struct config_node *sib, *child;
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struct config_value *v;
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};
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struct config_tree {
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struct config_node *root;
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};
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struct config_tree_list {
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struct list list;
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struct config_tree *cft;
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};
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struct config_tree *create_config_tree(const char *filename);
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struct config_tree *create_config_tree_from_string(struct cmd_context *cmd,
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const char *config_settings);
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void destroy_config_tree(struct config_tree *cft);
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typedef uint32_t (*checksum_fn_t) (uint32_t initial, const void *buf, uint32_t size);
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int read_config_fd(struct config_tree *cft, struct device *dev,
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off_t offset, size_t size, off_t offset2, size_t size2,
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checksum_fn_t checksum_fn, uint32_t checksum);
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int read_config_file(struct config_tree *cft);
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int write_config_file(struct config_tree *cft, const char *file);
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time_t config_file_timestamp(struct config_tree *cft);
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int config_file_changed(struct config_tree *cft);
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int merge_config_tree(struct cmd_context *cmd, struct config_tree *cft,
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struct config_tree *newdata);
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struct config_node *find_config_node(const struct config_node *cn,
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const char *path);
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const char *find_config_str(const struct config_node *cn, const char *path,
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const char *fail);
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int find_config_int(const struct config_node *cn, const char *path, int fail);
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float find_config_float(const struct config_node *cn, const char *path,
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float fail);
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/*
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* These versions check an override tree, if present, first.
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*/
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struct config_node *find_config_tree_node(struct cmd_context *cmd,
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const char *path);
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const char *find_config_tree_str(struct cmd_context *cmd,
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const char *path, const char *fail);
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int find_config_tree_int(struct cmd_context *cmd, const char *path,
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int fail);
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float find_config_tree_float(struct cmd_context *cmd, const char *path,
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float fail);
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/*
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* Understands (0, ~0), (y, n), (yes, no), (on,
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* off), (true, false).
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*/
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int find_config_bool(const struct config_node *cn, const char *path, int fail);
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int find_config_tree_bool(struct cmd_context *cmd, const char *path, int fail);
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int get_config_uint32(const struct config_node *cn, const char *path,
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uint32_t *result);
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int get_config_uint64(const struct config_node *cn, const char *path,
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uint64_t *result);
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int get_config_str(const struct config_node *cn, const char *path,
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char **result);
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#endif
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