Mercurial > hg > nginx-quic
annotate src/core/ngx_rbtree.c @ 6699:9cf2dce316e5
Fixed log levels of configuration parsing errors.
All the errors that prevent loading configuration must be printed on the "emerg"
log level. Previously, nginx might silently fail to load configuration in some
cases as the default log level is "error".
author | Valentin Bartenev <vbart@nginx.com> |
---|---|
date | Tue, 20 Sep 2016 15:07:16 +0300 |
parents | 1f513d7f1b45 |
children | b3c5b4312667 |
rev | line source |
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441
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1 |
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2 /* |
444
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3 * Copyright (C) Igor Sysoev |
4412 | 4 * Copyright (C) Nginx, Inc. |
441
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5 */ |
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6 |
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7 |
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8 #include <ngx_config.h> |
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9 #include <ngx_core.h> |
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10 |
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11 |
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12 /* |
559 | 13 * The red-black tree code is based on the algorithm described in |
14 * the "Introduction to Algorithms" by Cormen, Leiserson and Rivest. | |
205
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15 */ |
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16 |
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17 |
559 | 18 static ngx_inline void ngx_rbtree_left_rotate(ngx_rbtree_node_t **root, |
19 ngx_rbtree_node_t *sentinel, ngx_rbtree_node_t *node); | |
20 static ngx_inline void ngx_rbtree_right_rotate(ngx_rbtree_node_t **root, | |
21 ngx_rbtree_node_t *sentinel, ngx_rbtree_node_t *node); | |
205
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22 |
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23 |
493 | 24 void |
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25 ngx_rbtree_insert(ngx_rbtree_t *tree, ngx_rbtree_node_t *node) |
205
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26 { |
559 | 27 ngx_rbtree_node_t **root, *temp, *sentinel; |
205
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28 |
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29 /* a binary tree insert */ |
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30 |
559 | 31 root = (ngx_rbtree_node_t **) &tree->root; |
32 sentinel = tree->sentinel; | |
33 | |
207
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34 if (*root == sentinel) { |
212
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35 node->parent = NULL; |
207
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36 node->left = sentinel; |
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37 node->right = sentinel; |
205
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38 ngx_rbt_black(node); |
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39 *root = node; |
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40 |
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41 return; |
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42 } |
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43 |
853 | 44 tree->insert(*root, node, sentinel); |
205
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45 |
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46 /* re-balance tree */ |
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47 |
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48 while (node != *root && ngx_rbt_is_red(node->parent)) { |
205
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49 |
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50 if (node->parent == node->parent->parent->left) { |
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51 temp = node->parent->parent->right; |
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52 |
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53 if (ngx_rbt_is_red(temp)) { |
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54 ngx_rbt_black(node->parent); |
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55 ngx_rbt_black(temp); |
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56 ngx_rbt_red(node->parent->parent); |
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57 node = node->parent->parent; |
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58 |
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59 } else { |
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60 if (node == node->parent->right) { |
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61 node = node->parent; |
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62 ngx_rbtree_left_rotate(root, sentinel, node); |
205
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63 } |
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64 |
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65 ngx_rbt_black(node->parent); |
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66 ngx_rbt_red(node->parent->parent); |
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67 ngx_rbtree_right_rotate(root, sentinel, node->parent->parent); |
205
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68 } |
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69 |
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70 } else { |
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71 temp = node->parent->parent->left; |
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72 |
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73 if (ngx_rbt_is_red(temp)) { |
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74 ngx_rbt_black(node->parent); |
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75 ngx_rbt_black(temp); |
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76 ngx_rbt_red(node->parent->parent); |
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77 node = node->parent->parent; |
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78 |
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79 } else { |
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80 if (node == node->parent->left) { |
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81 node = node->parent; |
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82 ngx_rbtree_right_rotate(root, sentinel, node); |
205
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83 } |
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84 |
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85 ngx_rbt_black(node->parent); |
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86 ngx_rbt_red(node->parent->parent); |
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87 ngx_rbtree_left_rotate(root, sentinel, node->parent->parent); |
205
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88 } |
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89 } |
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90 } |
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91 |
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92 ngx_rbt_black(*root); |
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93 } |
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94 |
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95 |
493 | 96 void |
861 | 97 ngx_rbtree_insert_value(ngx_rbtree_node_t *temp, ngx_rbtree_node_t *node, |
98 ngx_rbtree_node_t *sentinel) | |
99 { | |
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100 ngx_rbtree_node_t **p; |
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101 |
861 | 102 for ( ;; ) { |
103 | |
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104 p = (node->key < temp->key) ? &temp->left : &temp->right; |
861 | 105 |
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106 if (*p == sentinel) { |
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107 break; |
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108 } |
861 | 109 |
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110 temp = *p; |
861 | 111 } |
112 | |
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113 *p = node; |
861 | 114 node->parent = temp; |
115 node->left = sentinel; | |
116 node->right = sentinel; | |
117 ngx_rbt_red(node); | |
118 } | |
119 | |
120 | |
121 void | |
853 | 122 ngx_rbtree_insert_timer_value(ngx_rbtree_node_t *temp, ngx_rbtree_node_t *node, |
123 ngx_rbtree_node_t *sentinel) | |
124 { | |
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125 ngx_rbtree_node_t **p; |
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126 |
853 | 127 for ( ;; ) { |
128 | |
129 /* | |
130 * Timer values | |
131 * 1) are spread in small range, usually several minutes, | |
132 * 2) and overflow each 49 days, if milliseconds are stored in 32 bits. | |
133 * The comparison takes into account that overflow. | |
134 */ | |
135 | |
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136 /* node->key < temp->key */ |
853 | 137 |
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138 p = ((ngx_rbtree_key_int_t) (node->key - temp->key) < 0) |
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139 ? &temp->left : &temp->right; |
853 | 140 |
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141 if (*p == sentinel) { |
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optimize rbtree initialization and insert
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parents:
1023
diff
changeset
|
142 break; |
4fc402c3ec73
optimize rbtree initialization and insert
Igor Sysoev <igor@sysoev.ru>
parents:
1023
diff
changeset
|
143 } |
853 | 144 |
1743
4fc402c3ec73
optimize rbtree initialization and insert
Igor Sysoev <igor@sysoev.ru>
parents:
1023
diff
changeset
|
145 temp = *p; |
853 | 146 } |
1746
3c0b44825071
style fix: remove trailing spaces
Igor Sysoev <igor@sysoev.ru>
parents:
1743
diff
changeset
|
147 |
1743
4fc402c3ec73
optimize rbtree initialization and insert
Igor Sysoev <igor@sysoev.ru>
parents:
1023
diff
changeset
|
148 *p = node; |
853 | 149 node->parent = temp; |
150 node->left = sentinel; | |
151 node->right = sentinel; | |
152 ngx_rbt_red(node); | |
153 } | |
154 | |
155 | |
156 void | |
5894
1f513d7f1b45
Events: removed broken thread support from event timers.
Valentin Bartenev <vbart@nginx.com>
parents:
4576
diff
changeset
|
157 ngx_rbtree_delete(ngx_rbtree_t *tree, ngx_rbtree_node_t *node) |
205
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
158 { |
853 | 159 ngx_uint_t red; |
559 | 160 ngx_rbtree_node_t **root, *sentinel, *subst, *temp, *w; |
205
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
161 |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
162 /* a binary tree delete */ |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
163 |
559 | 164 root = (ngx_rbtree_node_t **) &tree->root; |
165 sentinel = tree->sentinel; | |
166 | |
212
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
167 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
|
168 temp = node->right; |
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
169 subst = node; |
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
170 |
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
171 } 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
|
172 temp = node->left; |
205
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
173 subst = node; |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
174 |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
175 } else { |
212
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
176 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
|
177 |
212
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
178 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
|
179 temp = subst->left; |
205
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
180 } else { |
212
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
181 temp = subst->right; |
205
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
182 } |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
183 } |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
184 |
212
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
185 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
|
186 *root = temp; |
ce6b72fe33fe
nginx-0.0.1-2004-01-15-20:51:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
213
diff
changeset
|
187 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
|
188 |
ce6b72fe33fe
nginx-0.0.1-2004-01-15-20:51:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
213
diff
changeset
|
189 /* DEBUG stuff */ |
ce6b72fe33fe
nginx-0.0.1-2004-01-15-20:51:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
213
diff
changeset
|
190 node->left = NULL; |
ce6b72fe33fe
nginx-0.0.1-2004-01-15-20:51:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
213
diff
changeset
|
191 node->right = NULL; |
ce6b72fe33fe
nginx-0.0.1-2004-01-15-20:51:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
213
diff
changeset
|
192 node->parent = NULL; |
ce6b72fe33fe
nginx-0.0.1-2004-01-15-20:51:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
213
diff
changeset
|
193 node->key = 0; |
ce6b72fe33fe
nginx-0.0.1-2004-01-15-20:51:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
213
diff
changeset
|
194 |
212
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
195 return; |
205
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
196 } |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
197 |
852 | 198 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
|
199 |
212
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
200 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
|
201 subst->parent->left = temp; |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
202 |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
203 } else { |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
204 subst->parent->right = temp; |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
205 } |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
206 |
212
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
207 if (subst == node) { |
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
208 |
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
209 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
|
210 |
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
211 } else { |
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
212 |
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
213 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
|
214 temp->parent = subst; |
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
215 |
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
216 } else { |
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
217 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
|
218 } |
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
219 |
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
220 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
|
221 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
|
222 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
|
223 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
|
224 |
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
225 if (node == *root) { |
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
226 *root = subst; |
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
227 |
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
228 } else { |
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
229 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
|
230 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
|
231 } else { |
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
232 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
|
233 } |
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
234 } |
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
235 |
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
236 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
|
237 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
|
238 } |
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
239 |
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
240 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
|
241 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
|
242 } |
1764
bead8ca82404
clean rbtree node for all removals
Igor Sysoev <igor@sysoev.ru>
parents:
1746
diff
changeset
|
243 } |
229
ce6b72fe33fe
nginx-0.0.1-2004-01-15-20:51:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
213
diff
changeset
|
244 |
1764
bead8ca82404
clean rbtree node for all removals
Igor Sysoev <igor@sysoev.ru>
parents:
1746
diff
changeset
|
245 /* DEBUG stuff */ |
bead8ca82404
clean rbtree node for all removals
Igor Sysoev <igor@sysoev.ru>
parents:
1746
diff
changeset
|
246 node->left = NULL; |
bead8ca82404
clean rbtree node for all removals
Igor Sysoev <igor@sysoev.ru>
parents:
1746
diff
changeset
|
247 node->right = NULL; |
bead8ca82404
clean rbtree node for all removals
Igor Sysoev <igor@sysoev.ru>
parents:
1746
diff
changeset
|
248 node->parent = NULL; |
bead8ca82404
clean rbtree node for all removals
Igor Sysoev <igor@sysoev.ru>
parents:
1746
diff
changeset
|
249 node->key = 0; |
205
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
250 |
852 | 251 if (red) { |
205
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
252 return; |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
253 } |
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 /* a delete fixup */ |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
256 |
212
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
257 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
|
258 |
205
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
259 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
|
260 w = temp->parent->right; |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
261 |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
262 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
|
263 ngx_rbt_black(w); |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
264 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
|
265 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
|
266 w = temp->parent->right; |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
267 } |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
268 |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
269 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
|
270 ngx_rbt_red(w); |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
271 temp = temp->parent; |
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 } else { |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
274 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
|
275 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
|
276 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
|
277 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
|
278 w = temp->parent->right; |
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 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
|
282 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
|
283 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
|
284 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
|
285 temp = *root; |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
286 } |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
287 |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
288 } else { |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
289 w = temp->parent->left; |
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 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
|
292 ngx_rbt_black(w); |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
293 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
|
294 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
|
295 w = temp->parent->left; |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
296 } |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
297 |
213
f536f91e8e99
nginx-0.0.1-2003-12-19-15:45:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
212
diff
changeset
|
298 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
|
299 ngx_rbt_red(w); |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
300 temp = temp->parent; |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
301 |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
302 } else { |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
303 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
|
304 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
|
305 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
|
306 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
|
307 w = temp->parent->left; |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
308 } |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
309 |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
310 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
|
311 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
|
312 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
|
313 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
|
314 temp = *root; |
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 } |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
317 } |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
318 |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
319 ngx_rbt_black(temp); |
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 |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
322 |
493 | 323 static ngx_inline void |
559 | 324 ngx_rbtree_left_rotate(ngx_rbtree_node_t **root, ngx_rbtree_node_t *sentinel, |
325 ngx_rbtree_node_t *node) | |
205
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
326 { |
559 | 327 ngx_rbtree_node_t *temp; |
205
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 temp = node->right; |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
330 node->right = temp->left; |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
331 |
207
6e0fef527732
nginx-0.0.1-2003-12-05-20:07:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
206
diff
changeset
|
332 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
|
333 temp->left->parent = node; |
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 |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
336 temp->parent = node->parent; |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
337 |
212
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
338 if (node == *root) { |
205
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
339 *root = 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 } 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
|
342 node->parent->left = temp; |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
343 |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
344 } else { |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
345 node->parent->right = temp; |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
346 } |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
347 |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
348 temp->left = node; |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
349 node->parent = temp; |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
350 } |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
351 |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
352 |
493 | 353 static ngx_inline void |
559 | 354 ngx_rbtree_right_rotate(ngx_rbtree_node_t **root, ngx_rbtree_node_t *sentinel, |
355 ngx_rbtree_node_t *node) | |
205
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
356 { |
559 | 357 ngx_rbtree_node_t *temp; |
205
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
358 |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
359 temp = node->left; |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
360 node->left = temp->right; |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
361 |
207
6e0fef527732
nginx-0.0.1-2003-12-05-20:07:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
206
diff
changeset
|
362 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
|
363 temp->right->parent = node; |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
364 } |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
365 |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
366 temp->parent = node->parent; |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
367 |
212
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
368 if (node == *root) { |
205
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
369 *root = temp; |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
370 |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
371 } 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
|
372 node->parent->right = temp; |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
373 |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
374 } else { |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
375 node->parent->left = temp; |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
376 } |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
377 |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
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378 temp->right = node; |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
379 node->parent = temp; |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
380 } |