62 lines
1.8 KiB
C
62 lines
1.8 KiB
C
/*
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* Copyright (C) 2012 Felix Fietkau <nbd@openwrt.org>
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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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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef __LIBUBOX_VLIST_H
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#define __LIBUBOX_VLIST_H
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#include "avl.h"
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struct vlist_tree;
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struct vlist_node;
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typedef void (*vlist_update_cb)(struct vlist_tree *tree,
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struct vlist_node *node_new,
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struct vlist_node *node_old);
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struct vlist_tree {
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struct avl_tree avl;
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vlist_update_cb update;
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bool keep_old;
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bool no_delete;
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int version;
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};
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struct vlist_node {
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struct avl_node avl;
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int version;
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};
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void vlist_init(struct vlist_tree *tree, avl_tree_comp cmp, vlist_update_cb update);
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#define vlist_find(tree, name, element, node_member) \
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avl_find_element(&(tree)->avl, name, element, node_member.avl)
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static inline void vlist_update(struct vlist_tree *tree)
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{
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tree->version++;
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}
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void vlist_add(struct vlist_tree *tree, struct vlist_node *node, const void *key);
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void vlist_delete(struct vlist_tree *tree, struct vlist_node *node);
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void vlist_flush(struct vlist_tree *tree);
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void vlist_flush_all(struct vlist_tree *tree);
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#define vlist_for_each_element(tree, element, node_member) \
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avl_for_each_element(&(tree)->avl, element, node_member.avl)
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#endif
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