Mercurial > hg > nginx
annotate src/core/ngx_rbtree.h @ 4159:718f2154b813 stable-1.0
Merging r3933, r4154:
A new fix for the case when ssl_session_cache defined, but ssl is not
enabled in any server. The previous r1033 does not help when unused zone
becomes used after reconfiguration, so it is backed out.
The initial thought was to make SSL modules independed from SSL implementation
and to keep OpenSSL code dependance as much as in separate files.
| author | Igor Sysoev <igor@sysoev.ru> |
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| date | Fri, 30 Sep 2011 13:36:33 +0000 |
| parents | 33c2e3c6f02c |
| children | d620f497c50f |
| rev | line source |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
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4 */ |
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7 #ifndef _NGX_RBTREE_H_INCLUDED_ |
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8 #define _NGX_RBTREE_H_INCLUDED_ |
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11 #include <ngx_config.h> |
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12 #include <ngx_core.h> |
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| 557 | 15 typedef ngx_uint_t ngx_rbtree_key_t; |
| 16 typedef ngx_int_t ngx_rbtree_key_int_t; | |
| 17 | |
| 18 | |
| 559 | 19 typedef struct ngx_rbtree_node_s ngx_rbtree_node_t; |
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| 559 | 21 struct ngx_rbtree_node_s { |
| 22 ngx_rbtree_key_t key; | |
| 23 ngx_rbtree_node_t *left; | |
| 24 ngx_rbtree_node_t *right; | |
| 25 ngx_rbtree_node_t *parent; | |
| 853 | 26 u_char color; |
| 27 u_char data; | |
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28 }; |
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| 559 | 31 typedef struct ngx_rbtree_s ngx_rbtree_t; |
| 32 | |
| 853 | 33 typedef void (*ngx_rbtree_insert_pt) (ngx_rbtree_node_t *root, |
| 559 | 34 ngx_rbtree_node_t *node, ngx_rbtree_node_t *sentinel); |
| 35 | |
| 36 struct ngx_rbtree_s { | |
| 37 ngx_rbtree_node_t *root; | |
| 38 ngx_rbtree_node_t *sentinel; | |
| 853 | 39 ngx_rbtree_insert_pt insert; |
| 559 | 40 }; |
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| 1686 | 43 #define ngx_rbtree_init(tree, s, i) \ |
| 44 ngx_rbtree_sentinel_init(s); \ | |
| 45 (tree)->root = s; \ | |
| 46 (tree)->sentinel = s; \ | |
| 47 (tree)->insert = i | |
| 48 | |
| 49 | |
| 559 | 50 void ngx_rbtree_insert(ngx_thread_volatile ngx_rbtree_t *tree, |
| 51 ngx_rbtree_node_t *node); | |
| 52 void ngx_rbtree_delete(ngx_thread_volatile ngx_rbtree_t *tree, | |
| 53 ngx_rbtree_node_t *node); | |
| 861 | 54 void ngx_rbtree_insert_value(ngx_rbtree_node_t *root, ngx_rbtree_node_t *node, |
| 55 ngx_rbtree_node_t *sentinel); | |
| 853 | 56 void ngx_rbtree_insert_timer_value(ngx_rbtree_node_t *root, |
| 57 ngx_rbtree_node_t *node, ngx_rbtree_node_t *sentinel); | |
| 559 | 58 |
| 59 | |
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60 #define ngx_rbt_red(node) ((node)->color = 1) |
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61 #define ngx_rbt_black(node) ((node)->color = 0) |
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62 #define ngx_rbt_is_red(node) ((node)->color) |
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63 #define ngx_rbt_is_black(node) (!ngx_rbt_is_red(node)) |
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64 #define ngx_rbt_copy_color(n1, n2) (n1->color = n2->color) |
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| 965 | 67 /* a sentinel must be black */ |
| 68 | |
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69 #define ngx_rbtree_sentinel_init(node) ngx_rbt_black(node) |
| 965 | 70 |
| 71 | |
| 559 | 72 static ngx_inline ngx_rbtree_node_t * |
| 73 ngx_rbtree_min(ngx_rbtree_node_t *node, ngx_rbtree_node_t *sentinel) | |
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74 { |
| 557 | 75 while (node->left != sentinel) { |
| 76 node = node->left; | |
| 77 } | |
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| 557 | 79 return node; |
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80 } |
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83 #endif /* _NGX_RBTREE_H_INCLUDED_ */ |