Mercurial > hg > nginx-quic
annotate src/core/ngx_rbtree.c @ 342:0ee0642af5f1
nginx-0.0.3-2004-05-26-23:33:53 import
author | Igor Sysoev <igor@sysoev.ru> |
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date | Wed, 26 May 2004 19:33:53 +0000 |
parents | ce6b72fe33fe |
children | da8c5707af39 |
rev | line source |
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205
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1 |
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2 #include <ngx_config.h> |
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3 #include <ngx_core.h> |
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4 |
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5 |
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6 /* |
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7 * The code is based on the algorithm described in the "Introduction |
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8 * to Algorithms" by Cormen, Leiserson and Rivest. |
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9 */ |
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10 |
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11 #define ngx_rbt_red(node) ((node)->color = 1) |
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12 #define ngx_rbt_black(node) ((node)->color = 0) |
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13 #define ngx_rbt_is_red(node) ((node)->color) |
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14 #define ngx_rbt_is_black(node) (!ngx_rbt_is_red(node)) |
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15 #define ngx_rbt_copy_color(n1, n2) (n1->color = n2->color) |
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16 |
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17 |
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18 ngx_inline void ngx_rbtree_left_rotate(ngx_rbtree_t **root, |
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19 ngx_rbtree_t *sentinel, |
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20 ngx_rbtree_t *node); |
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21 ngx_inline void ngx_rbtree_right_rotate(ngx_rbtree_t **root, |
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22 ngx_rbtree_t *sentinel, |
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23 ngx_rbtree_t *node); |
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24 |
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25 |
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26 void ngx_rbtree_insert(ngx_rbtree_t **root, ngx_rbtree_t *sentinel, |
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27 ngx_rbtree_t *node) |
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28 { |
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29 ngx_rbtree_t *temp; |
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30 |
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31 /* a binary tree insert */ |
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32 |
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33 if (*root == sentinel) { |
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34 node->parent = NULL; |
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35 node->left = sentinel; |
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36 node->right = sentinel; |
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37 ngx_rbt_black(node); |
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38 *root = node; |
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39 |
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40 return; |
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41 } |
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42 |
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43 temp = *root; |
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44 |
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45 for ( ;; ) { |
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46 if (node->key < temp->key) { |
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47 if (temp->left == sentinel) { |
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48 temp->left = node; |
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49 break; |
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50 } |
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51 |
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52 temp = temp->left; |
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53 continue; |
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54 } |
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55 |
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56 if (temp->right == sentinel) { |
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57 temp->right = node; |
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58 break; |
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59 } |
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60 |
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61 temp = temp->right; |
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62 continue; |
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63 } |
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64 |
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65 node->parent = temp; |
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66 node->left = sentinel; |
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67 node->right = sentinel; |
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68 |
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69 |
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70 /* re-balance tree */ |
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71 |
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72 ngx_rbt_red(node); |
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73 |
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74 while (node != *root && ngx_rbt_is_red(node->parent)) { |
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75 |
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76 if (node->parent == node->parent->parent->left) { |
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77 temp = node->parent->parent->right; |
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78 |
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79 if (ngx_rbt_is_red(temp)) { |
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80 ngx_rbt_black(node->parent); |
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81 ngx_rbt_black(temp); |
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82 ngx_rbt_red(node->parent->parent); |
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83 node = node->parent->parent; |
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84 |
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85 } else { |
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86 if (node == node->parent->right) { |
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87 node = node->parent; |
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88 ngx_rbtree_left_rotate(root, sentinel, node); |
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89 } |
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90 |
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91 ngx_rbt_black(node->parent); |
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92 ngx_rbt_red(node->parent->parent); |
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93 ngx_rbtree_right_rotate(root, sentinel, node->parent->parent); |
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94 } |
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95 |
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96 } else { |
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97 temp = node->parent->parent->left; |
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98 |
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99 if (ngx_rbt_is_red(temp)) { |
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100 ngx_rbt_black(node->parent); |
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101 ngx_rbt_black(temp); |
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102 ngx_rbt_red(node->parent->parent); |
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|
103 node = node->parent->parent; |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
104 |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
105 } else { |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
106 if (node == node->parent->left) { |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
107 node = node->parent; |
207
6e0fef527732
nginx-0.0.1-2003-12-05-20:07:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
206
diff
changeset
|
108 ngx_rbtree_right_rotate(root, sentinel, node); |
205
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
109 } |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
110 |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
111 ngx_rbt_black(node->parent); |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
112 ngx_rbt_red(node->parent->parent); |
207
6e0fef527732
nginx-0.0.1-2003-12-05-20:07:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
206
diff
changeset
|
113 ngx_rbtree_left_rotate(root, sentinel, node->parent->parent); |
205
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
114 } |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
115 } |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
116 |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
117 } |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
118 |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
119 ngx_rbt_black(*root); |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
120 } |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
121 |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
122 |
207
6e0fef527732
nginx-0.0.1-2003-12-05-20:07:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
206
diff
changeset
|
123 void ngx_rbtree_delete(ngx_rbtree_t **root, ngx_rbtree_t *sentinel, |
6e0fef527732
nginx-0.0.1-2003-12-05-20:07:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
206
diff
changeset
|
124 ngx_rbtree_t *node) |
205
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
125 { |
213
f536f91e8e99
nginx-0.0.1-2003-12-19-15:45:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
212
diff
changeset
|
126 ngx_int_t is_red; |
205
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
127 ngx_rbtree_t *subst, *temp, *w; |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
128 |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
129 /* a binary tree delete */ |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
130 |
212
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
131 if (node->left == sentinel) { |
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
132 temp = node->right; |
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
133 subst = node; |
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
134 |
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
135 } else if (node->right == sentinel) { |
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
136 temp = node->left; |
205
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
137 subst = node; |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
138 |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
139 } else { |
212
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
140 subst = ngx_rbtree_min(node->right, sentinel); |
205
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
141 |
212
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
142 if (subst->left != sentinel) { |
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
143 temp = subst->left; |
205
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
144 } else { |
212
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
145 temp = subst->right; |
205
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
146 } |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
147 } |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
148 |
212
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
149 if (subst == *root) { |
229
ce6b72fe33fe
nginx-0.0.1-2004-01-15-20:51:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
213
diff
changeset
|
150 *root = temp; |
ce6b72fe33fe
nginx-0.0.1-2004-01-15-20:51:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
213
diff
changeset
|
151 ngx_rbt_black(temp); |
ce6b72fe33fe
nginx-0.0.1-2004-01-15-20:51:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
213
diff
changeset
|
152 |
ce6b72fe33fe
nginx-0.0.1-2004-01-15-20:51:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
213
diff
changeset
|
153 /* DEBUG stuff */ |
ce6b72fe33fe
nginx-0.0.1-2004-01-15-20:51:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
213
diff
changeset
|
154 node->left = NULL; |
ce6b72fe33fe
nginx-0.0.1-2004-01-15-20:51:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
213
diff
changeset
|
155 node->right = NULL; |
ce6b72fe33fe
nginx-0.0.1-2004-01-15-20:51:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
213
diff
changeset
|
156 node->parent = NULL; |
ce6b72fe33fe
nginx-0.0.1-2004-01-15-20:51:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
213
diff
changeset
|
157 node->key = 0; |
ce6b72fe33fe
nginx-0.0.1-2004-01-15-20:51:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
213
diff
changeset
|
158 |
212
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
159 return; |
205
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
160 } |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
161 |
213
f536f91e8e99
nginx-0.0.1-2003-12-19-15:45:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
212
diff
changeset
|
162 is_red = ngx_rbt_is_red(subst); |
205
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
163 |
212
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
164 if (subst == subst->parent->left) { |
205
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
165 subst->parent->left = temp; |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
166 |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
167 } else { |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
168 subst->parent->right = temp; |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
169 } |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
170 |
212
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
171 if (subst == node) { |
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
172 |
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
173 temp->parent = subst->parent; |
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
174 |
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
175 } else { |
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
176 |
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
177 if (subst->parent == node) { |
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
178 temp->parent = subst; |
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
179 |
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
180 } else { |
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
181 temp->parent = subst->parent; |
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
182 } |
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
183 |
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
184 subst->left = node->left; |
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
185 subst->right = node->right; |
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
186 subst->parent = node->parent; |
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
187 ngx_rbt_copy_color(subst, node); |
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
188 |
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
189 if (node == *root) { |
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
190 *root = subst; |
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
191 |
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
192 } else { |
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
193 if (node == node->parent->left) { |
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
194 node->parent->left = subst; |
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
195 } else { |
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
196 node->parent->right = subst; |
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
197 } |
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
198 } |
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
199 |
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
200 if (subst->left != sentinel) { |
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
201 subst->left->parent = subst; |
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
202 } |
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
203 |
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
204 if (subst->right != sentinel) { |
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
205 subst->right->parent = subst; |
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
206 } |
229
ce6b72fe33fe
nginx-0.0.1-2004-01-15-20:51:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
213
diff
changeset
|
207 |
ce6b72fe33fe
nginx-0.0.1-2004-01-15-20:51:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
213
diff
changeset
|
208 /* DEBUG stuff */ |
ce6b72fe33fe
nginx-0.0.1-2004-01-15-20:51:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
213
diff
changeset
|
209 node->left = NULL; |
ce6b72fe33fe
nginx-0.0.1-2004-01-15-20:51:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
213
diff
changeset
|
210 node->right = NULL; |
ce6b72fe33fe
nginx-0.0.1-2004-01-15-20:51:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
213
diff
changeset
|
211 node->parent = NULL; |
ce6b72fe33fe
nginx-0.0.1-2004-01-15-20:51:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
213
diff
changeset
|
212 node->key = 0; |
205
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
213 } |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
214 |
213
f536f91e8e99
nginx-0.0.1-2003-12-19-15:45:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
212
diff
changeset
|
215 if (is_red) { |
205
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
216 return; |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
217 } |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
218 |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
219 /* a delete fixup */ |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
220 |
212
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
221 while (temp != *root && ngx_rbt_is_black(temp)) { |
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
222 |
205
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
223 if (temp == temp->parent->left) { |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
224 w = temp->parent->right; |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
225 |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
226 if (ngx_rbt_is_red(w)) { |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
227 ngx_rbt_black(w); |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
228 ngx_rbt_red(temp->parent); |
207
6e0fef527732
nginx-0.0.1-2003-12-05-20:07:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
206
diff
changeset
|
229 ngx_rbtree_left_rotate(root, sentinel, temp->parent); |
205
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
230 w = temp->parent->right; |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
231 } |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
232 |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
233 if (ngx_rbt_is_black(w->left) && ngx_rbt_is_black(w->right)) { |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
234 ngx_rbt_red(w); |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
235 temp = temp->parent; |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
236 |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
237 } else { |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
238 if (ngx_rbt_is_black(w->right)) { |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
239 ngx_rbt_black(w->left); |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
240 ngx_rbt_red(w); |
207
6e0fef527732
nginx-0.0.1-2003-12-05-20:07:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
206
diff
changeset
|
241 ngx_rbtree_right_rotate(root, sentinel, w); |
205
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
242 w = temp->parent->right; |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
243 } |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
244 |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
245 ngx_rbt_copy_color(w, temp->parent); |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
246 ngx_rbt_black(temp->parent); |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
247 ngx_rbt_black(w->right); |
207
6e0fef527732
nginx-0.0.1-2003-12-05-20:07:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
206
diff
changeset
|
248 ngx_rbtree_left_rotate(root, sentinel, temp->parent); |
205
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
249 temp = *root; |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
250 } |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
251 |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
252 } else { |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
253 w = temp->parent->left; |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
254 |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
255 if (ngx_rbt_is_red(w)) { |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
256 ngx_rbt_black(w); |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
257 ngx_rbt_red(temp->parent); |
207
6e0fef527732
nginx-0.0.1-2003-12-05-20:07:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
206
diff
changeset
|
258 ngx_rbtree_right_rotate(root, sentinel, temp->parent); |
205
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
259 w = temp->parent->left; |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
260 } |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
261 |
213
f536f91e8e99
nginx-0.0.1-2003-12-19-15:45:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
212
diff
changeset
|
262 if (ngx_rbt_is_black(w->left) && ngx_rbt_is_black(w->right)) { |
205
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
263 ngx_rbt_red(w); |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
264 temp = temp->parent; |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
265 |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
266 } else { |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
267 if (ngx_rbt_is_black(w->left)) { |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
268 ngx_rbt_black(w->right); |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
269 ngx_rbt_red(w); |
207
6e0fef527732
nginx-0.0.1-2003-12-05-20:07:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
206
diff
changeset
|
270 ngx_rbtree_left_rotate(root, sentinel, w); |
205
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
271 w = temp->parent->left; |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
272 } |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
273 |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
274 ngx_rbt_copy_color(w, temp->parent); |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
275 ngx_rbt_black(temp->parent); |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
276 ngx_rbt_black(w->left); |
207
6e0fef527732
nginx-0.0.1-2003-12-05-20:07:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
206
diff
changeset
|
277 ngx_rbtree_right_rotate(root, sentinel, temp->parent); |
205
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
278 temp = *root; |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
279 } |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
280 } |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
281 } |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
282 |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
283 ngx_rbt_black(temp); |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
284 } |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
285 |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
286 |
207
6e0fef527732
nginx-0.0.1-2003-12-05-20:07:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
206
diff
changeset
|
287 ngx_inline void ngx_rbtree_left_rotate(ngx_rbtree_t **root, |
6e0fef527732
nginx-0.0.1-2003-12-05-20:07:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
206
diff
changeset
|
288 ngx_rbtree_t *sentinel, |
6e0fef527732
nginx-0.0.1-2003-12-05-20:07:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
206
diff
changeset
|
289 ngx_rbtree_t *node) |
205
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
290 { |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
291 ngx_rbtree_t *temp; |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
292 |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
293 temp = node->right; |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
294 node->right = temp->left; |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
295 |
207
6e0fef527732
nginx-0.0.1-2003-12-05-20:07:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
206
diff
changeset
|
296 if (temp->left != sentinel) { |
205
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
297 temp->left->parent = node; |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
298 } |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
299 |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
300 temp->parent = node->parent; |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
301 |
212
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
302 if (node == *root) { |
205
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
303 *root = temp; |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
304 |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
305 } else if (node == node->parent->left) { |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
306 node->parent->left = temp; |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
307 |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
308 } else { |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
309 node->parent->right = temp; |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
310 } |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
311 |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
312 temp->left = node; |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
313 node->parent = temp; |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
314 } |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
315 |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
316 |
207
6e0fef527732
nginx-0.0.1-2003-12-05-20:07:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
206
diff
changeset
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317 ngx_inline void ngx_rbtree_right_rotate(ngx_rbtree_t **root, |
6e0fef527732
nginx-0.0.1-2003-12-05-20:07:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
206
diff
changeset
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318 ngx_rbtree_t *sentinel, |
6e0fef527732
nginx-0.0.1-2003-12-05-20:07:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
206
diff
changeset
|
319 ngx_rbtree_t *node) |
205
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
320 { |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
321 ngx_rbtree_t *temp; |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
322 |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
323 temp = node->left; |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
324 node->left = temp->right; |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
325 |
207
6e0fef527732
nginx-0.0.1-2003-12-05-20:07:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
206
diff
changeset
|
326 if (temp->right != sentinel) { |
205
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
327 temp->right->parent = node; |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
328 } |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
329 |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
330 temp->parent = node->parent; |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
331 |
212
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
332 if (node == *root) { |
205
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
333 *root = temp; |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
334 |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
335 } else if (node == node->parent->right) { |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
336 node->parent->right = temp; |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
337 |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
338 } else { |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
339 node->parent->left = temp; |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
340 } |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
341 |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
342 temp->right = node; |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
343 node->parent = temp; |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
344 } |