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libifupdown: add a simple key-value dictionary based on linked lists

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Ariadne Conill 2020-07-18 03:08:47 -06:00
parent 803f51efe8
commit 3f618d2a3b
4 changed files with 134 additions and 1 deletions
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libifupdown/dict.h Normal file
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/*
* libifupdown/dict.h
* Purpose: wrapping linked lists to provide a naive dictionary
*
* Copyright (c) 2020 Ariadne Conill <ariadne@dereferenced.org>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* This software is provided 'as is' and without any warranty, express or
* implied. In no event shall the authors be liable for any damages arising
* from the use of this software.
*/
#ifndef LIBIFUPDOWN_DICT_H__GUARD
#define LIBIFUPDOWN_DICT_H__GUARD
#include "libifupdown/list.h"
struct lif_dict {
struct lif_list list;
};
struct lif_dict_entry {
struct lif_node node;
char *key;
void *data;
};
#define LIF_DICT_FOREACH(iter, dict) \
LIF_LIST_FOREACH((iter), (dict)->list.head)
#define LIF_DICT_FOREACH_SAFE(iter, iter_next, dict) \
LIF_LIST_FOREACH_SAFE((iter), (iter_next), (dict)->list.head)
extern void lif_dict_init(struct lif_dict *dict);
extern void lif_dict_fini(struct lif_dict *dict);
extern struct lif_dict_entry *lif_dict_add(struct lif_dict *dict, const char *key, void *data);
extern struct lif_dict_entry *lif_dict_find(struct lif_dict *dict, const char *key);
extern void lif_dict_delete(struct lif_dict *dict, const char *key);
extern void lif_dict_delete_entry(struct lif_dict *dict, struct lif_dict_entry *entry);
#endif