|
0
|
1
|
|
|
2 /*
|
|
|
3 * Copyright (C) Igor Sysoev
|
|
|
4 */
|
|
|
5
|
|
|
6
|
|
|
7 #ifndef _NGX_RBTREE_H_INCLUDED_
|
|
|
8 #define _NGX_RBTREE_H_INCLUDED_
|
|
|
9
|
|
|
10
|
|
|
11 #include <ngx_config.h>
|
|
|
12 #include <ngx_core.h>
|
|
|
13
|
|
|
14
|
|
106
|
15 typedef ngx_uint_t ngx_rbtree_key_t;
|
|
|
16 typedef ngx_int_t ngx_rbtree_key_int_t;
|
|
|
17
|
|
|
18
|
|
108
|
19 typedef struct ngx_rbtree_node_s ngx_rbtree_node_t;
|
|
0
|
20
|
|
108
|
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;
|
|
258
|
26 u_char color;
|
|
|
27 u_char data;
|
|
0
|
28 };
|
|
|
29
|
|
|
30
|
|
108
|
31 typedef struct ngx_rbtree_s ngx_rbtree_t;
|
|
|
32
|
|
258
|
33 typedef void (*ngx_rbtree_insert_pt) (ngx_rbtree_node_t *root,
|
|
108
|
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;
|
|
258
|
39 ngx_rbtree_insert_pt insert;
|
|
108
|
40 };
|
|
0
|
41
|
|
|
42
|
|
108
|
43 void ngx_rbtree_insert(ngx_thread_volatile ngx_rbtree_t *tree,
|
|
|
44 ngx_rbtree_node_t *node);
|
|
|
45 void ngx_rbtree_delete(ngx_thread_volatile ngx_rbtree_t *tree,
|
|
|
46 ngx_rbtree_node_t *node);
|
|
258
|
47 void ngx_rbtree_insert_value(ngx_rbtree_node_t *root, ngx_rbtree_node_t *node,
|
|
|
48 ngx_rbtree_node_t *sentinel);
|
|
|
49 void ngx_rbtree_insert_timer_value(ngx_rbtree_node_t *root,
|
|
|
50 ngx_rbtree_node_t *node, ngx_rbtree_node_t *sentinel);
|
|
108
|
51
|
|
|
52
|
|
272
|
53 /* a sentinel must be black */
|
|
|
54
|
|
|
55 #define ngx_rbtree_sentinel_init(node) node->color = 0
|
|
|
56
|
|
|
57
|
|
108
|
58 static ngx_inline ngx_rbtree_node_t *
|
|
|
59 ngx_rbtree_min(ngx_rbtree_node_t *node, ngx_rbtree_node_t *sentinel)
|
|
0
|
60 {
|
|
106
|
61 while (node->left != sentinel) {
|
|
|
62 node = node->left;
|
|
|
63 }
|
|
0
|
64
|
|
106
|
65 return node;
|
|
0
|
66 }
|
|
|
67
|
|
|
68
|
|
|
69 #endif /* _NGX_RBTREE_H_INCLUDED_ */
|
