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34
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1
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2 /*
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3 * Copyright (C) Igor Sysoev
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660
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4 * Copyright (C) Nginx, Inc.
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34
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5 */
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6
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7
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8 #ifndef _NGX_RADIX_TREE_H_INCLUDED_
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9 #define _NGX_RADIX_TREE_H_INCLUDED_
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10
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11
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12 #include <ngx_config.h>
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13 #include <ngx_core.h>
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14
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15
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16 #define NGX_RADIX_NO_VALUE (uintptr_t) -1
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17
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18 typedef struct ngx_radix_node_s ngx_radix_node_t;
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19
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20 struct ngx_radix_node_s {
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21 ngx_radix_node_t *right;
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22 ngx_radix_node_t *left;
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23 ngx_radix_node_t *parent;
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24 uintptr_t value;
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25 };
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26
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27
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28 typedef struct {
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29 ngx_radix_node_t *root;
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30 ngx_pool_t *pool;
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31 ngx_radix_node_t *free;
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32 char *start;
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33 size_t size;
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34 } ngx_radix_tree_t;
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35
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36
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36
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37 ngx_radix_tree_t *ngx_radix_tree_create(ngx_pool_t *pool,
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38
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38 ngx_int_t preallocate);
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34
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39 ngx_int_t ngx_radix32tree_insert(ngx_radix_tree_t *tree,
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36
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40 uint32_t key, uint32_t mask, uintptr_t value);
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34
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41 ngx_int_t ngx_radix32tree_delete(ngx_radix_tree_t *tree,
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42 uint32_t key, uint32_t mask);
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43 uintptr_t ngx_radix32tree_find(ngx_radix_tree_t *tree, uint32_t key);
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44
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45
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46 #endif /* _NGX_RADIX_TREE_H_INCLUDED_ */
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