Mercurial > hg > nginx-quic
annotate src/core/ngx_rbtree.h @ 6564:19db5a6bc34e
Realip: port support in X-Real-IP and X-Forwarded-For.
Now, the module extracts optional port which may accompany an
IP address. This custom extension is introduced, among other
things, in order to facilitate logging of original client ports.
Addresses with ports are expected to be in the RFC 3986 format,
that is, with IPv6 addresses in square brackets. E.g.,
"X-Real-IP: [2001:0db8::1]:12345" sets client port ($remote_port)
to 12345.
author | Dmitry Volyntsev <xeioex@nginx.com> |
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date | Mon, 23 May 2016 18:44:23 +0300 |
parents | 1f513d7f1b45 |
children | e0cc454aafe4 |
rev | line source |
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441
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1 |
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2 /* |
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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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8 #ifndef _NGX_RBTREE_H_INCLUDED_ |
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9 #define _NGX_RBTREE_H_INCLUDED_ |
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12 #include <ngx_config.h> |
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13 #include <ngx_core.h> |
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15 |
557 | 16 typedef ngx_uint_t ngx_rbtree_key_t; |
17 typedef ngx_int_t ngx_rbtree_key_int_t; | |
18 | |
19 | |
559 | 20 typedef struct ngx_rbtree_node_s ngx_rbtree_node_t; |
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21 |
559 | 22 struct ngx_rbtree_node_s { |
23 ngx_rbtree_key_t key; | |
24 ngx_rbtree_node_t *left; | |
25 ngx_rbtree_node_t *right; | |
26 ngx_rbtree_node_t *parent; | |
853 | 27 u_char color; |
28 u_char data; | |
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29 }; |
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31 |
559 | 32 typedef struct ngx_rbtree_s ngx_rbtree_t; |
33 | |
853 | 34 typedef void (*ngx_rbtree_insert_pt) (ngx_rbtree_node_t *root, |
559 | 35 ngx_rbtree_node_t *node, ngx_rbtree_node_t *sentinel); |
36 | |
37 struct ngx_rbtree_s { | |
38 ngx_rbtree_node_t *root; | |
39 ngx_rbtree_node_t *sentinel; | |
853 | 40 ngx_rbtree_insert_pt insert; |
559 | 41 }; |
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42 |
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43 |
1686 | 44 #define ngx_rbtree_init(tree, s, i) \ |
45 ngx_rbtree_sentinel_init(s); \ | |
46 (tree)->root = s; \ | |
47 (tree)->sentinel = s; \ | |
48 (tree)->insert = i | |
49 | |
50 | |
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51 void ngx_rbtree_insert(ngx_rbtree_t *tree, ngx_rbtree_node_t *node); |
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52 void ngx_rbtree_delete(ngx_rbtree_t *tree, ngx_rbtree_node_t *node); |
861 | 53 void ngx_rbtree_insert_value(ngx_rbtree_node_t *root, ngx_rbtree_node_t *node, |
54 ngx_rbtree_node_t *sentinel); | |
853 | 55 void ngx_rbtree_insert_timer_value(ngx_rbtree_node_t *root, |
56 ngx_rbtree_node_t *node, ngx_rbtree_node_t *sentinel); | |
559 | 57 |
58 | |
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59 #define ngx_rbt_red(node) ((node)->color = 1) |
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60 #define ngx_rbt_black(node) ((node)->color = 0) |
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61 #define ngx_rbt_is_red(node) ((node)->color) |
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62 #define ngx_rbt_is_black(node) (!ngx_rbt_is_red(node)) |
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63 #define ngx_rbt_copy_color(n1, n2) (n1->color = n2->color) |
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64 |
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65 |
965 | 66 /* a sentinel must be black */ |
67 | |
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68 #define ngx_rbtree_sentinel_init(node) ngx_rbt_black(node) |
965 | 69 |
70 | |
559 | 71 static ngx_inline ngx_rbtree_node_t * |
72 ngx_rbtree_min(ngx_rbtree_node_t *node, ngx_rbtree_node_t *sentinel) | |
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73 { |
557 | 74 while (node->left != sentinel) { |
75 node = node->left; | |
76 } | |
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557 | 78 return node; |
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79 } |
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80 |
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81 |
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82 #endif /* _NGX_RBTREE_H_INCLUDED_ */ |