Mercurial > hg > nginx-quic
view src/core/ngx_rbtree.h @ 8862:c2f5d79cde64 quic
QUIC: separate UDP framework for QUIC.
Previously, QUIC used the existing UDP framework, which was created for UDP in
Stream. However the way QUIC connections are created and looked up is different
from the way UDP connections in Stream are created and looked up. Now these
two implementations are decoupled.
author | Roman Arutyunyan <arut@nginx.com> |
---|---|
date | Wed, 20 Apr 2022 16:01:17 +0400 |
parents | 0c5e84096d99 |
children |
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/* * Copyright (C) Igor Sysoev * Copyright (C) Nginx, Inc. */ #ifndef _NGX_RBTREE_H_INCLUDED_ #define _NGX_RBTREE_H_INCLUDED_ #include <ngx_config.h> #include <ngx_core.h> typedef ngx_uint_t ngx_rbtree_key_t; typedef ngx_int_t ngx_rbtree_key_int_t; typedef struct ngx_rbtree_node_s ngx_rbtree_node_t; struct ngx_rbtree_node_s { ngx_rbtree_key_t key; ngx_rbtree_node_t *left; ngx_rbtree_node_t *right; ngx_rbtree_node_t *parent; u_char color; u_char data; }; typedef struct ngx_rbtree_s ngx_rbtree_t; typedef void (*ngx_rbtree_insert_pt) (ngx_rbtree_node_t *root, ngx_rbtree_node_t *node, ngx_rbtree_node_t *sentinel); struct ngx_rbtree_s { ngx_rbtree_node_t *root; ngx_rbtree_node_t *sentinel; ngx_rbtree_insert_pt insert; }; #define ngx_rbtree_init(tree, s, i) \ ngx_rbtree_sentinel_init(s); \ (tree)->root = s; \ (tree)->sentinel = s; \ (tree)->insert = i #define ngx_rbtree_data(node, type, link) \ (type *) ((u_char *) (node) - offsetof(type, link)) void ngx_rbtree_insert(ngx_rbtree_t *tree, ngx_rbtree_node_t *node); void ngx_rbtree_delete(ngx_rbtree_t *tree, ngx_rbtree_node_t *node); void ngx_rbtree_insert_value(ngx_rbtree_node_t *root, ngx_rbtree_node_t *node, ngx_rbtree_node_t *sentinel); void ngx_rbtree_insert_timer_value(ngx_rbtree_node_t *root, ngx_rbtree_node_t *node, ngx_rbtree_node_t *sentinel); ngx_rbtree_node_t *ngx_rbtree_next(ngx_rbtree_t *tree, ngx_rbtree_node_t *node); #define ngx_rbt_red(node) ((node)->color = 1) #define ngx_rbt_black(node) ((node)->color = 0) #define ngx_rbt_is_red(node) ((node)->color) #define ngx_rbt_is_black(node) (!ngx_rbt_is_red(node)) #define ngx_rbt_copy_color(n1, n2) (n1->color = n2->color) /* a sentinel must be black */ #define ngx_rbtree_sentinel_init(node) ngx_rbt_black(node) static ngx_inline ngx_rbtree_node_t * ngx_rbtree_min(ngx_rbtree_node_t *node, ngx_rbtree_node_t *sentinel) { while (node->left != sentinel) { node = node->left; } return node; } #endif /* _NGX_RBTREE_H_INCLUDED_ */