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git://sourceware.org/git/lvm2.git
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82 lines
1.9 KiB
C
82 lines
1.9 KiB
C
/*
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* Copyright (C) 2001 Sistina Software (UK) Limited.
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*
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* This file is released under the LGPL.
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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 <inttypes.h>
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#include <sys/types.h>
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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 *create_config_tree(void);
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void destroy_config_tree(struct config_tree *cf);
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typedef uint32_t (*checksum_fn_t) (uint32_t initial, void *buf, uint32_t size);
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int read_config_fd(struct config_tree *cf, int fd, const char *file,
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off_t offset, uint32_t size, off_t offset2, uint32_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 *cf, const char *file);
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int write_config_file(struct config_tree *cf, const char *file);
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int reload_config_file(struct config_tree **cf);
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struct config_node *find_config_node(struct config_node *cn,
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const char *path, char seperator);
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const char *find_config_str(struct config_node *cn,
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const char *path, char sep, const char *fail);
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int find_config_int(struct config_node *cn, const char *path,
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char sep, int fail);
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float find_config_float(struct config_node *cn, const char *path,
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char sep, 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(struct config_node *cn, const char *path,
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char sep, int fail);
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int get_config_uint32(struct config_node *cn, const char *path,
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char sep, uint32_t *result);
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int get_config_uint64(struct config_node *cn, const char *path,
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char sep, uint64_t *result);
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int get_config_str(struct config_node *cn, const char *path,
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char sep, char **result);
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#endif
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