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32 lines
1.1 KiB
32 lines
1.1 KiB
#ifndef __KERN_LIBS_RB_TREE_H__
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#define __KERN_LIBS_RB_TREE_H__
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#include <defs.h>
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typedef struct rb_node {
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bool red; // if red = 0, it's a black node
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struct rb_node *parent;
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struct rb_node *left, *right;
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} rb_node;
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typedef struct rb_tree {
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// compare function should return -1 if *node1 < *node2, 1 if *node1 > *node2, and 0 otherwise
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int (*compare)(rb_node *node1, rb_node *node2);
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struct rb_node *nil, *root;
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} rb_tree;
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rb_tree *rb_tree_create(int (*compare)(rb_node *node1, rb_node *node2));
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void rb_tree_destroy(rb_tree *tree);
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void rb_insert(rb_tree *tree, rb_node *node);
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void rb_delete(rb_tree *tree, rb_node *node);
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rb_node *rb_search(rb_tree *tree, int (*compare)(rb_node *node, void *key), void *key);
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rb_node *rb_node_prev(rb_tree *tree, rb_node *node);
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rb_node *rb_node_next(rb_tree *tree, rb_node *node);
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rb_node *rb_node_root(rb_tree *tree);
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rb_node *rb_node_left(rb_tree *tree, rb_node *node);
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rb_node *rb_node_right(rb_tree *tree, rb_node *node);
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void check_rb_tree(void);
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#endif /* !__KERN_LIBS_RBTREE_H__ */
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