45 lines
1.4 KiB
C
45 lines
1.4 KiB
C
/*
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* libifupdown/list.h
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* Purpose: linked lists
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*
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* Copyright (c) 2020 Ariadne Conill <ariadne@dereferenced.org>
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* Copyright (c) 2020 Maximilian Wilhelm <max@sdn.clinic>
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* This software is provided 'as is' and without any warranty, express or
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* implied. In no event shall the authors be liable for any damages arising
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* from the use of this software.
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*/
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#ifndef LIBIFUPDOWN_LIST_H__GUARD
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#define LIBIFUPDOWN_LIST_H__GUARD
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#include <stddef.h>
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#include <stdint.h>
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struct lif_node {
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struct lif_node *prev, *next;
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void *data;
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};
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struct lif_list {
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struct lif_node *head, *tail;
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size_t length;
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};
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extern void lif_list_free_nodes(struct lif_list **list);
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extern void lif_node_insert(struct lif_node *node, void *data, struct lif_list *list);
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extern void lif_node_insert_tail(struct lif_node *node, void *data, struct lif_list *list);
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extern void lif_node_delete(struct lif_node *node, struct lif_list *list);
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#define LIF_LIST_FOREACH(iter, head) \
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for ((iter) = (head); (iter) != NULL; (iter) = (iter)->next)
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#define LIF_LIST_FOREACH_SAFE(iter, iter_next, head) \
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for ((iter) = (head), (iter_next) = (iter)->next; (iter) != NULL; (iter) = (iter_next), (iter_next) = (iter) != NULL ? (iter)->next : NULL)
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#endif
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