Mercurial > hg > nginx-quic
annotate src/core/ngx_radix_tree.h @ 4515:8bb695c05870 stable-1.0
Merge of r4498:
Fix of rbtree lookup on hash collisions.
Previous code incorrectly assumed that nodes with identical keys are linked
together. This might not be true after tree rebalance.
Patch by Lanshun Zhou.
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Mon, 05 Mar 2012 13:17:56 +0000 |
parents | 4919fb357a5d |
children | 3be3de31d7dd |
rev | line source |
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
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4 * Copyright (C) Nginx, Inc. |
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5 */ |
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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 |
485 | 16 #define NGX_RADIX_NO_VALUE (uintptr_t) -1 |
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 |
487 | 37 ngx_radix_tree_t *ngx_radix_tree_create(ngx_pool_t *pool, |
489 | 38 ngx_int_t preallocate); |
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39 ngx_int_t ngx_radix32tree_insert(ngx_radix_tree_t *tree, |
487 | 40 uint32_t key, uint32_t mask, uintptr_t value); |
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41 ngx_int_t ngx_radix32tree_delete(ngx_radix_tree_t *tree, |
487 | 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_ */ |