nginx/src/core/ngx_radix_tree.h


/*
 * Copyright (C) Igor Sysoev
 * Copyright (C) Nginx, Inc.
 */


#ifndef _NGX_RADIX_TREE_H_INCLUDED_
#define _NGX_RADIX_TREE_H_INCLUDED_


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


#define NGX_RADIX_NO_VALUE   (uintptr_t) -1

typedef struct ngx_radix_node_s  ngx_radix_node_t;

struct ngx_radix_node_s {
    ngx_radix_node_t  *right;
    ngx_radix_node_t  *left;
    ngx_radix_node_t  *parent;
    uintptr_t          value;
};


typedef struct {
    ngx_radix_node_t  *root;
    ngx_pool_t        *pool;
    ngx_radix_node_t  *free;
    char              *start;
    size_t             size;
} ngx_radix_tree_t;


ngx_radix_tree_t *ngx_radix_tree_create(ngx_pool_t *pool,
    ngx_int_t preallocate);

ngx_int_t ngx_radix32tree_insert(ngx_radix_tree_t *tree,
    uint32_t key, uint32_t mask, uintptr_t value);
ngx_int_t ngx_radix32tree_delete(ngx_radix_tree_t *tree,
    uint32_t key, uint32_t mask);
uintptr_t ngx_radix32tree_find(ngx_radix_tree_t *tree, uint32_t key);

#if (NGX_HAVE_INET6)
ngx_int_t ngx_radix128tree_insert(ngx_radix_tree_t *tree,
    u_char *key, u_char *mask, uintptr_t value);
ngx_int_t ngx_radix128tree_delete(ngx_radix_tree_t *tree,
    u_char *key, u_char *mask);
uintptr_t ngx_radix128tree_find(ngx_radix_tree_t *tree, u_char *key);
#endif


#endif /* _NGX_RADIX_TREE_H_INCLUDED_ */
nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files 2004-09-28 16:34:51 +08:00
			`/*`
nginx-0.1.0-2004-09-29-20:00:49 import; remove years from copyright 2004-09-30 00:00:49 +08:00			`* Copyright (C) Igor Sysoev`
Copyright updated. 2012-01-18 23:07:43 +08:00			`* Copyright (C) Nginx, Inc.`
nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files 2004-09-28 16:34:51 +08:00			`*/`


nginx-0.0.3-2004-05-25-19:28:46 import 2004-05-25 23:28:46 +08:00			`#ifndef _NGX_RADIX_TREE_H_INCLUDED_`
			`#define _NGX_RADIX_TREE_H_INCLUDED_`


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


nginx-0.1.17-RELEASE import ) Change: the ngx_http_rewrite_module was rewritten from the scratch. Now it is possible to redirect, to return the error codes, to check the variables and referrers. The directives can be used inside locations. The redirect directive was canceled. ) Feature: the ngx_http_geo_module. ) Feature: the proxy_set_x_var and fastcgi_set_var directives. ) Bugfix: the location configuration with "=" modifier may be used in another location. ) Bugfix: the correct content type was set only for requests that use small caps letters in extension. ) Bugfix: if the proxy_pass or fastcgi_pass directives were set in the location, and access was denied, and the error was redirected to a static page, then the segmentation fault occurred. ) Bugfix: if in a proxied "Location" header was a relative URL, then a host name and a slash were added to them; the bug had appeared in 0.1.14. ) Bugfix: the system error message was not logged on Linux. 2005-02-04 03:33:37 +08:00			`#define NGX_RADIX_NO_VALUE (uintptr_t) -1`

nginx-0.0.3-2004-05-25-19:28:46 import 2004-05-25 23:28:46 +08:00			`typedef struct ngx_radix_node_s ngx_radix_node_t;`

			`struct ngx_radix_node_s {`
			`ngx_radix_node_t *right;`
			`ngx_radix_node_t *left;`
nginx-0.0.3-2004-05-26-23:33:53 import 2004-05-27 03:33:53 +08:00			`ngx_radix_node_t *parent;`
			`uintptr_t value;`
nginx-0.0.3-2004-05-25-19:28:46 import 2004-05-25 23:28:46 +08:00			`};`


			`typedef struct {`
			`ngx_radix_node_t *root;`
			`ngx_pool_t *pool;`
nginx-0.0.3-2004-05-26-19:30:12 import 2004-05-26 23:30:12 +08:00			`ngx_radix_node_t *free;`
			`char *start;`
nginx-0.0.3-2004-05-25-19:28:46 import 2004-05-25 23:28:46 +08:00			`size_t size;`
			`} ngx_radix_tree_t;`


nginx-0.1.18-RELEASE import ) Workaround: the default values of the devpoll_events and the devpoll_changes directives changed from 512 to 32 to be compatible with Solaris 10. ) Bugfix: the proxy_set_x_var and fastcgi_set_var directives were not inherited. ) Bugfix: in the redirect rewrite directive the arguments were concatenated with URI by the "&" rather than the "?". ) Bugfix: the lines without trailing ";" in the file being included by the ngx_http_geo_module were silently ignored. ) Feature: the ngx_http_stub_status_module. ) Bugfix: the unknown log format in the access_log directive caused the segmentation fault. ) Feature: the new "document_root" parameter of the fastcgi_params directive. ) Feature: the fastcgi_redirect_errors directive. *) Feature: the new "break" modifier of the "rewrite" directive allows to stop the rewrite/location cycle and sets the current configuration to the request. 2005-02-09 22:31:07 +08:00			`ngx_radix_tree_t ngx_radix_tree_create(ngx_pool_t pool,`
nginx-0.1.19-RELEASE import ) Bugfix: now, if request contains the zero, then the 404 error is returned for the local requests. ) Bugfix: nginx could not be built on NetBSD 2.0. *) Bugfix: the timeout may occur while reading of the the client request body via SSL connections. 2005-02-16 21:40:36 +08:00			`ngx_int_t preallocate);`
Geo: IPv6 support. The "ranges" mode is still limited to IPv4 only. 2012-12-25 16:21:56 +08:00
nginx-0.0.3-2004-05-25-19:28:46 import 2004-05-25 23:28:46 +08:00			`ngx_int_t ngx_radix32tree_insert(ngx_radix_tree_t *tree,`
nginx-0.1.18-RELEASE import ) Workaround: the default values of the devpoll_events and the devpoll_changes directives changed from 512 to 32 to be compatible with Solaris 10. ) Bugfix: the proxy_set_x_var and fastcgi_set_var directives were not inherited. ) Bugfix: in the redirect rewrite directive the arguments were concatenated with URI by the "&" rather than the "?". ) Bugfix: the lines without trailing ";" in the file being included by the ngx_http_geo_module were silently ignored. ) Feature: the ngx_http_stub_status_module. ) Bugfix: the unknown log format in the access_log directive caused the segmentation fault. ) Feature: the new "document_root" parameter of the fastcgi_params directive. ) Feature: the fastcgi_redirect_errors directive. *) Feature: the new "break" modifier of the "rewrite" directive allows to stop the rewrite/location cycle and sets the current configuration to the request. 2005-02-09 22:31:07 +08:00			`uint32_t key, uint32_t mask, uintptr_t value);`
nginx-0.0.3-2004-05-26-23:33:53 import 2004-05-27 03:33:53 +08:00			`ngx_int_t ngx_radix32tree_delete(ngx_radix_tree_t *tree,`
nginx-0.1.18-RELEASE import ) Workaround: the default values of the devpoll_events and the devpoll_changes directives changed from 512 to 32 to be compatible with Solaris 10. ) Bugfix: the proxy_set_x_var and fastcgi_set_var directives were not inherited. ) Bugfix: in the redirect rewrite directive the arguments were concatenated with URI by the "&" rather than the "?". ) Bugfix: the lines without trailing ";" in the file being included by the ngx_http_geo_module were silently ignored. ) Feature: the ngx_http_stub_status_module. ) Bugfix: the unknown log format in the access_log directive caused the segmentation fault. ) Feature: the new "document_root" parameter of the fastcgi_params directive. ) Feature: the fastcgi_redirect_errors directive. *) Feature: the new "break" modifier of the "rewrite" directive allows to stop the rewrite/location cycle and sets the current configuration to the request. 2005-02-09 22:31:07 +08:00			`uint32_t key, uint32_t mask);`
nginx-0.0.3-2004-05-25-19:28:46 import 2004-05-25 23:28:46 +08:00			`uintptr_t ngx_radix32tree_find(ngx_radix_tree_t *tree, uint32_t key);`

Geo: IPv6 support. The "ranges" mode is still limited to IPv4 only. 2012-12-25 16:21:56 +08:00			`#if (NGX_HAVE_INET6)`
			`ngx_int_t ngx_radix128tree_insert(ngx_radix_tree_t *tree,`
			`u_char key, u_char mask, uintptr_t value);`
			`ngx_int_t ngx_radix128tree_delete(ngx_radix_tree_t *tree,`
			`u_char key, u_char mask);`
			`uintptr_t ngx_radix128tree_find(ngx_radix_tree_t tree, u_char key);`
			`#endif`

nginx-0.0.3-2004-05-25-19:28:46 import 2004-05-25 23:28:46 +08:00
			`#endif /* _NGX_RADIX_TREE_H_INCLUDED_ */`