Mercurial > hg > nginx-quic
annotate src/core/ngx_rbtree.h @ 8565:573bd30e46b4
SSL: set events ready flags after handshake.
The c->read->ready and c->write->ready flags might be reset during
the handshake, and not set again if the handshake was finished on
the other event. At the same time, some data might be read from
the socket during the handshake, so missing c->read->ready flag might
result in a connection hang, for example, when waiting for an SMTP
greeting (which was already received during the handshake).
Found by Sergey Kandaurov.
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Tue, 03 Aug 2021 20:50:30 +0300 |
parents | 0c5e84096d99 |
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rev | line source |
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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 | |
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50 #define ngx_rbtree_data(node, type, link) \ |
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51 (type *) ((u_char *) (node) - offsetof(type, link)) |
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52 |
1686 | 53 |
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Events: removed broken thread support from event timers.
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54 void ngx_rbtree_insert(ngx_rbtree_t *tree, ngx_rbtree_node_t *node); |
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55 void ngx_rbtree_delete(ngx_rbtree_t *tree, ngx_rbtree_node_t *node); |
861 | 56 void ngx_rbtree_insert_value(ngx_rbtree_node_t *root, ngx_rbtree_node_t *node, |
57 ngx_rbtree_node_t *sentinel); | |
853 | 58 void ngx_rbtree_insert_timer_value(ngx_rbtree_node_t *root, |
59 ngx_rbtree_node_t *node, ngx_rbtree_node_t *sentinel); | |
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Core: introduced ngx_rbtree_next().
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60 ngx_rbtree_node_t *ngx_rbtree_next(ngx_rbtree_t *tree, |
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61 ngx_rbtree_node_t *node); |
559 | 62 |
63 | |
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64 #define ngx_rbt_red(node) ((node)->color = 1) |
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65 #define ngx_rbt_black(node) ((node)->color = 0) |
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66 #define ngx_rbt_is_red(node) ((node)->color) |
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67 #define ngx_rbt_is_black(node) (!ngx_rbt_is_red(node)) |
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68 #define ngx_rbt_copy_color(n1, n2) (n1->color = n2->color) |
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69 |
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70 |
965 | 71 /* a sentinel must be black */ |
72 | |
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73 #define ngx_rbtree_sentinel_init(node) ngx_rbt_black(node) |
965 | 74 |
75 | |
559 | 76 static ngx_inline ngx_rbtree_node_t * |
77 ngx_rbtree_min(ngx_rbtree_node_t *node, ngx_rbtree_node_t *sentinel) | |
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78 { |
557 | 79 while (node->left != sentinel) { |
80 node = node->left; | |
81 } | |
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82 |
557 | 83 return node; |
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84 } |
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85 |
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86 |
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87 #endif /* _NGX_RBTREE_H_INCLUDED_ */ |