Mercurial > hg > nginx

annotate src/core/ngx_radix_tree.c @ 487:31ff3e943e16 release-0.1.18

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
nginx-0.1.18-RELEASE import *) Workaround: the default values of the devpoll_events and the devpoll_changes directives changed from 512 to 32 to be compatible with Solaris 10. *) Bugfix: the proxy_set_x_var and fastcgi_set_var directives were not inherited. *) Bugfix: in the redirect rewrite directive the arguments were concatenated with URI by the "&" rather than the "?". *) Bugfix: the lines without trailing ";" in the file being included by the ngx_http_geo_module were silently ignored. *) Feature: the ngx_http_stub_status_module. *) Bugfix: the unknown log format in the access_log directive caused the segmentation fault. *) Feature: the new "document_root" parameter of the fastcgi_params directive. *) Feature: the fastcgi_redirect_errors directive. *) Feature: the new "break" modifier of the "rewrite" directive allows to stop the rewrite/location cycle and sets the current configuration to the request.
author Igor Sysoev <igor@sysoev.ru>
date Wed, 09 Feb 2005 14:31:07 +0000
parents 4ebe09b07e30
children 45a460f82aec
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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441
da8c5707af39 nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
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1
da8c5707af39 nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
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2 /*
444
42d11f017717 nginx-0.1.0-2004-09-29-20:00:49 import; remove years from copyright
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3 * Copyright (C) Igor Sysoev
441
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4 */
da8c5707af39 nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
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5
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6
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
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7 #include <ngx_config.h>
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8 #include <ngx_core.h>
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
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4ebe09b07e30 nginx-0.1.17-RELEASE import
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11 static void *ngx_radix_alloc(ngx_radix_tree_t *tree);
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13
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31ff3e943e16 nginx-0.1.18-RELEASE import
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14 ngx_radix_tree_t *
31ff3e943e16 nginx-0.1.18-RELEASE import
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15 ngx_radix_tree_create(ngx_pool_t *pool, ngx_uint_t preallocate)
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16 {
487
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17 uint32_t key, mask, inc;
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18 ngx_radix_tree_t *tree;
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19
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20 if (!(tree = ngx_palloc(pool, sizeof(ngx_radix_tree_t)))) {
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21 return NULL;
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22 }
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23
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
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24 tree->pool = pool;
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
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25 tree->free = NULL;
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41e552841296 nginx-0.0.3-2004-05-26-19:30:12 import
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26 tree->start = NULL;
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27 tree->size = 0;
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28
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29 if (!(tree->root = ngx_radix_alloc(tree))) {
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30 return NULL;
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31 }
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32
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33 tree->root->right = NULL;
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34 tree->root->left = NULL;
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35 tree->root->parent = NULL;
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36 tree->root->value = NGX_RADIX_NO_VALUE;
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37
487
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38 /*
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39 * We preallocate the first nodes: 0, 1, 00, 01, 10, 11, 000, 001, etc.,
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40 * to increase the TLB hits even if for the first lookup iterations.
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41 * On the 32-bit platforms the 7 preallocated bits takes continuous 4K,
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42 * 8 - 8K, 9 - 16K, etc.
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43 */
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44
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45 mask = 0;
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46 inc = 0x80000000;
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47
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48 while (preallocate--) {
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49
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50 key = 0;
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51 mask >>= 1;
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52 mask |= 0x80000000;
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53
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54 do {
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55 if (ngx_radix32tree_insert(tree, key, mask, NGX_RADIX_NO_VALUE)
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56 != NGX_OK)
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57 {
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58 return NULL;
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59 }
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60
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61 key += inc;
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62
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63 } while (key);
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64
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65 inc >>= 1;
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66 }
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67
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68 return tree;
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69 }
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71
487
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72 ngx_int_t
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73 ngx_radix32tree_insert(ngx_radix_tree_t *tree, uint32_t key, uint32_t mask,
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74 uintptr_t value)
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75 {
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76 uint32_t bit;
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77 ngx_radix_node_t *node, *next;
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78
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79 bit = 0x80000000;
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80
342
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81 node = tree->root;
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82 next = tree->root;
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83
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84 while (bit & mask) {
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85 if (key & bit) {
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86 next = node->right;
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87
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88 } else {
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89 next = node->left;
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90 }
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91
0ee0642af5f1 nginx-0.0.3-2004-05-26-23:33:53 import
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92 if (next == NULL) {
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93 break;
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94 }
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95
485
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96 bit >>= 1;
342
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97 node = next;
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98 }
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99
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100 if (next) {
485
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101 if (node->value != NGX_RADIX_NO_VALUE) {
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102 return NGX_BUSY;
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103 }
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104
0ee0642af5f1 nginx-0.0.3-2004-05-26-23:33:53 import
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105 node->value = value;
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106 return NGX_OK;
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107 }
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108
0ee0642af5f1 nginx-0.0.3-2004-05-26-23:33:53 import
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109 while (bit & mask) {
485
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110 if (!(next = ngx_radix_alloc(tree))) {
342
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111 return NGX_ERROR;
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112 }
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113
0ee0642af5f1 nginx-0.0.3-2004-05-26-23:33:53 import
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114 next->right = NULL;
0ee0642af5f1 nginx-0.0.3-2004-05-26-23:33:53 import
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115 next->left = NULL;
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116 next->parent = node;
485
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117 next->value = NGX_RADIX_NO_VALUE;
342
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118
0ee0642af5f1 nginx-0.0.3-2004-05-26-23:33:53 import
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119 if (key & bit) {
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120 node->right = next;
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121
0ee0642af5f1 nginx-0.0.3-2004-05-26-23:33:53 import
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122 } else {
0ee0642af5f1 nginx-0.0.3-2004-05-26-23:33:53 import
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123 node->left = next;
0ee0642af5f1 nginx-0.0.3-2004-05-26-23:33:53 import
Igor Sysoev <igor@sysoev.ru>
parents: 341
diff changeset
124 }
0ee0642af5f1 nginx-0.0.3-2004-05-26-23:33:53 import
Igor Sysoev <igor@sysoev.ru>
parents: 341
diff changeset
125
0ee0642af5f1 nginx-0.0.3-2004-05-26-23:33:53 import
Igor Sysoev <igor@sysoev.ru>
parents: 341
diff changeset
126 bit >>= 1;
0ee0642af5f1 nginx-0.0.3-2004-05-26-23:33:53 import
Igor Sysoev <igor@sysoev.ru>
parents: 341
diff changeset
127 node = next;
0ee0642af5f1 nginx-0.0.3-2004-05-26-23:33:53 import
Igor Sysoev <igor@sysoev.ru>
parents: 341
diff changeset
128 }
0ee0642af5f1 nginx-0.0.3-2004-05-26-23:33:53 import
Igor Sysoev <igor@sysoev.ru>
parents: 341
diff changeset
129
485
4ebe09b07e30 nginx-0.1.17-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
130 node->value = value;
4ebe09b07e30 nginx-0.1.17-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
131
342
0ee0642af5f1 nginx-0.0.3-2004-05-26-23:33:53 import
Igor Sysoev <igor@sysoev.ru>
parents: 341
diff changeset
132 return NGX_OK;
0ee0642af5f1 nginx-0.0.3-2004-05-26-23:33:53 import
Igor Sysoev <igor@sysoev.ru>
parents: 341
diff changeset
133 }
0ee0642af5f1 nginx-0.0.3-2004-05-26-23:33:53 import
Igor Sysoev <igor@sysoev.ru>
parents: 341
diff changeset
134
0ee0642af5f1 nginx-0.0.3-2004-05-26-23:33:53 import
Igor Sysoev <igor@sysoev.ru>
parents: 341
diff changeset
135
487
31ff3e943e16 nginx-0.1.18-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 485
diff changeset
136 ngx_int_t
31ff3e943e16 nginx-0.1.18-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 485
diff changeset
137 ngx_radix32tree_delete(ngx_radix_tree_t *tree, uint32_t key, uint32_t mask)
342
0ee0642af5f1 nginx-0.0.3-2004-05-26-23:33:53 import
Igor Sysoev <igor@sysoev.ru>
parents: 341
diff changeset
138 {
0ee0642af5f1 nginx-0.0.3-2004-05-26-23:33:53 import
Igor Sysoev <igor@sysoev.ru>
parents: 341
diff changeset
139 uint32_t bit;
0ee0642af5f1 nginx-0.0.3-2004-05-26-23:33:53 import
Igor Sysoev <igor@sysoev.ru>
parents: 341
diff changeset
140 ngx_radix_node_t *node;
340
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
141
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
142 bit = 0x80000000;
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
143 node = tree->root;
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
144
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
145 while (node && (bit & mask)) {
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
146 if (key & bit) {
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
147 node = node->right;
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
148
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
149 } else {
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
150 node = node->left;
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
151 }
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
152
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
153 bit >>= 1;
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
154 }
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
155
342
0ee0642af5f1 nginx-0.0.3-2004-05-26-23:33:53 import
Igor Sysoev <igor@sysoev.ru>
parents: 341
diff changeset
156 if (node == NULL) {
0ee0642af5f1 nginx-0.0.3-2004-05-26-23:33:53 import
Igor Sysoev <igor@sysoev.ru>
parents: 341
diff changeset
157 return NGX_ERROR;
0ee0642af5f1 nginx-0.0.3-2004-05-26-23:33:53 import
Igor Sysoev <igor@sysoev.ru>
parents: 341
diff changeset
158 }
340
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
159
342
0ee0642af5f1 nginx-0.0.3-2004-05-26-23:33:53 import
Igor Sysoev <igor@sysoev.ru>
parents: 341
diff changeset
160 if (node->right || node->left) {
485
4ebe09b07e30 nginx-0.1.17-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
161 if (node->value != NGX_RADIX_NO_VALUE) {
4ebe09b07e30 nginx-0.1.17-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
162 node->value = NGX_RADIX_NO_VALUE;
4ebe09b07e30 nginx-0.1.17-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
163 return NGX_OK;
4ebe09b07e30 nginx-0.1.17-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
164 }
4ebe09b07e30 nginx-0.1.17-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
165
4ebe09b07e30 nginx-0.1.17-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
166 return NGX_ERROR;
340
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
167 }
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
168
342
0ee0642af5f1 nginx-0.0.3-2004-05-26-23:33:53 import
Igor Sysoev <igor@sysoev.ru>
parents: 341
diff changeset
169 for ( ;; ) {
0ee0642af5f1 nginx-0.0.3-2004-05-26-23:33:53 import
Igor Sysoev <igor@sysoev.ru>
parents: 341
diff changeset
170 if (node->parent->right == node) {
0ee0642af5f1 nginx-0.0.3-2004-05-26-23:33:53 import
Igor Sysoev <igor@sysoev.ru>
parents: 341
diff changeset
171 node->parent->right = NULL;
0ee0642af5f1 nginx-0.0.3-2004-05-26-23:33:53 import
Igor Sysoev <igor@sysoev.ru>
parents: 341
diff changeset
172 } else {
0ee0642af5f1 nginx-0.0.3-2004-05-26-23:33:53 import
Igor Sysoev <igor@sysoev.ru>
parents: 341
diff changeset
173 node->parent->left = NULL;
340
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
174 }
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
175
342
0ee0642af5f1 nginx-0.0.3-2004-05-26-23:33:53 import
Igor Sysoev <igor@sysoev.ru>
parents: 341
diff changeset
176 node->right = tree->free;
0ee0642af5f1 nginx-0.0.3-2004-05-26-23:33:53 import
Igor Sysoev <igor@sysoev.ru>
parents: 341
diff changeset
177 tree->free = node;
340
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
178
342
0ee0642af5f1 nginx-0.0.3-2004-05-26-23:33:53 import
Igor Sysoev <igor@sysoev.ru>
parents: 341
diff changeset
179 node = node->parent;
0ee0642af5f1 nginx-0.0.3-2004-05-26-23:33:53 import
Igor Sysoev <igor@sysoev.ru>
parents: 341
diff changeset
180
485
4ebe09b07e30 nginx-0.1.17-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
181 if (node->right
4ebe09b07e30 nginx-0.1.17-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
182 || node->left
4ebe09b07e30 nginx-0.1.17-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
183 || node->value != NGX_RADIX_NO_VALUE
4ebe09b07e30 nginx-0.1.17-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
184 || node->parent == NULL)
4ebe09b07e30 nginx-0.1.17-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
185 {
342
0ee0642af5f1 nginx-0.0.3-2004-05-26-23:33:53 import
Igor Sysoev <igor@sysoev.ru>
parents: 341
diff changeset
186 break;
340
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
187 }
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
188 }
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
189
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
190 return NGX_OK;
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
191 }
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
192
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
193
487
31ff3e943e16 nginx-0.1.18-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 485
diff changeset
194 uintptr_t
31ff3e943e16 nginx-0.1.18-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 485
diff changeset
195 ngx_radix32tree_find(ngx_radix_tree_t *tree, uint32_t key)
340
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
196 {
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
197 uint32_t bit;
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
198 uintptr_t value;
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
199 ngx_radix_node_t *node;
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
200
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
201 bit = 0x80000000;
485
4ebe09b07e30 nginx-0.1.17-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
202 value = NGX_RADIX_NO_VALUE;
340
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
203 node = tree->root;
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
204
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
205 while (node) {
485
4ebe09b07e30 nginx-0.1.17-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
206 if (node->value != NGX_RADIX_NO_VALUE) {
340
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
207 value = node->value;
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
208 }
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
209
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
210 if (key & bit) {
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
211 node = node->right;
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
212
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
213 } else {
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
214 node = node->left;
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
215 }
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
216
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
217 bit >>= 1;
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
218 }
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
219
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
220 return value;
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
221 }
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
222
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
223
487
31ff3e943e16 nginx-0.1.18-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 485
diff changeset
224 static void *
31ff3e943e16 nginx-0.1.18-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 485
diff changeset
225 ngx_radix_alloc(ngx_radix_tree_t *tree)
340
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
226 {
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
227 char *p;
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
228
341
41e552841296 nginx-0.0.3-2004-05-26-19:30:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 340
diff changeset
229 if (tree->free) {
41e552841296 nginx-0.0.3-2004-05-26-19:30:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 340
diff changeset
230 p = (char *) tree->free;
41e552841296 nginx-0.0.3-2004-05-26-19:30:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 340
diff changeset
231 tree->free = tree->free->right;
41e552841296 nginx-0.0.3-2004-05-26-19:30:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 340
diff changeset
232 return p;
41e552841296 nginx-0.0.3-2004-05-26-19:30:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 340
diff changeset
233 }
41e552841296 nginx-0.0.3-2004-05-26-19:30:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 340
diff changeset
234
485
4ebe09b07e30 nginx-0.1.17-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
235 if (tree->size < sizeof(ngx_radix_node_t)) {
351
af4c6b45a687 nginx-0.0.4-2004-06-10-22:36:57 import
Igor Sysoev <igor@sysoev.ru>
parents: 342
diff changeset
236 if (!(tree->start = ngx_palloc(tree->pool, ngx_pagesize))) {
340
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
237 return NULL;
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
238 }
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
239
351
af4c6b45a687 nginx-0.0.4-2004-06-10-22:36:57 import
Igor Sysoev <igor@sysoev.ru>
parents: 342
diff changeset
240 tree->size = ngx_pagesize;
340
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
241 }
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
242
341
41e552841296 nginx-0.0.3-2004-05-26-19:30:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 340
diff changeset
243 p = tree->start;
485
4ebe09b07e30 nginx-0.1.17-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
244 tree->start += sizeof(ngx_radix_node_t);
4ebe09b07e30 nginx-0.1.17-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
245 tree->size -= sizeof(ngx_radix_node_t);
340
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
246
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
247 return p;
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
248 }