view src/core/ngx_rbtree.h @ 9036:6cf8ed15fd00 quic

Set default listen socket type in http. The type field was added in 7999d3fbb765 at early stages of QUIC implementation and was not initialized for default listen. Missing initialization resulted in default listen socket creation error.
author Roman Arutyunyan <arut@nginx.com>
date Tue, 01 Nov 2022 17:00:35 +0400
parents 0c5e84096d99
children
line wrap: on
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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_ */