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/*
* Copyright (C) 2001 Sistina Software (UK) Limited.
*
* This file is released under the LGPL.
*/
#ifndef _LVM_CONFIG_H
#define _LVM_CONFIG_H
#include <inttypes.h>
#include <sys/types.h>
enum {
CFG_STRING,
CFG_FLOAT,
CFG_INT,
CFG_EMPTY_ARRAY
};
struct config_value {
int type;
union {
int i;
float r;
char *str;
} v;
struct config_value *next; /* for arrays */
};
struct config_node {
char *key;
struct config_node *sib, *child;
struct config_value *v;
};
struct config_tree {
struct config_node *root;
};
struct config_tree *create_config_tree(void);
void destroy_config_tree(struct config_tree *cf);
typedef uint32_t (*checksum_fn_t) (uint32_t initial, void *buf, uint32_t size);
int read_config_fd(struct config_tree *cf, int fd, const char *file,
off_t offset, uint32_t size, off_t offset2, uint32_t size2,
checksum_fn_t checksum_fn, uint32_t checksum);
int read_config_file(struct config_tree *cf, const char *file);
int write_config_file(struct config_tree *cf, const char *file);
int reload_config_file(struct config_tree **cf);
struct config_node *find_config_node(struct config_node *cn,
const char *path, char seperator);
const char *find_config_str(struct config_node *cn,
const char *path, char sep, const char *fail);
int find_config_int(struct config_node *cn, const char *path,
char sep, int fail);
float find_config_float(struct config_node *cn, const char *path,
char sep, float fail);
/*
* Understands (0, ~0), (y, n), (yes, no), (on,
* off), (true, false).
*/
int find_config_bool(struct config_node *cn, const char *path,
char sep, int fail);
int get_config_uint32(struct config_node *cn, const char *path,
char sep, uint32_t *result);
int get_config_uint64(struct config_node *cn, const char *path,
char sep, uint64_t *result);
int get_config_str(struct config_node *cn, const char *path,
char sep, char **result);
#endif
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