nginx 0.2.6 *) Change: while using load-balancing the time before the failed backend retry was decreased from 60 to 10 seconds. *) Change: the "proxy_pass_unparsed_uri" was canceled, the original URI now passed, if the URI part is omitted in "proxy_pass" directive. *) Feature: the "error_page" directive supports redirects and allows more flexible to change an error code. *) Change: the charset in the "Content-Type" header line now is ignored in proxied subrequests. *) Bugfix: if the URI was changed in the "if" block and request did not found new configuration, then the ngx_http_rewrite_module rules ran again. *) Bugfix: if the "set" directive set the ngx_http_geo_module variable in some configuration part, the this variable was not available in other configuration parts and the "using uninitialized variable" error was occurred; bug appeared in 0.2.2.

/*
 * Copyright (C) Igor Sysoev
 */


#ifndef _NGX_RBTREE_H_INCLUDED_
#define _NGX_RBTREE_H_INCLUDED_


#include <ngx_config.h>
#include <ngx_core.h>


typedef struct ngx_rbtree_s  ngx_rbtree_t;

struct ngx_rbtree_s {
   ngx_int_t       key;
   ngx_rbtree_t   *left;
   ngx_rbtree_t   *right;
   ngx_rbtree_t   *parent;
   char            color;
};


void ngx_rbtree_insert(ngx_rbtree_t **root, ngx_rbtree_t *sentinel,
    ngx_rbtree_t *node);
void ngx_rbtree_delete(ngx_rbtree_t **root, ngx_rbtree_t *sentinel,
    ngx_rbtree_t *node);


static ngx_inline ngx_rbtree_t *
ngx_rbtree_min(ngx_rbtree_t *node, ngx_rbtree_t *sentinel)
{
   while (node->left != sentinel) {
       node = node->left;
   }

   return node;
}


#endif /* _NGX_RBTREE_H_INCLUDED_ */