Mercurial > hg > nginx
annotate src/core/ngx_resolver.h @ 9120:0aaa09927703
SSL: removed the "ssl" directive.
It has been deprecated since 7270:46c0c7ef4913 (1.15.0) in favour of
the "ssl" parameter of the "listen" directive, which has been available
since 2224:109849282793 (0.7.14).
author | Roman Arutyunyan <arut@nginx.com> |
---|---|
date | Thu, 08 Jun 2023 14:49:27 +0400 |
parents | 2a77754cd9fe |
children |
rev | line source |
---|---|
1649 | 1 |
2 /* | |
3 * Copyright (C) Igor Sysoev | |
4412 | 4 * Copyright (C) Nginx, Inc. |
1649 | 5 */ |
6 | |
7 | |
8 #include <ngx_config.h> | |
9 #include <ngx_core.h> | |
10 | |
11 | |
12 #ifndef _NGX_RESOLVER_H_INCLUDED_ | |
13 #define _NGX_RESOLVER_H_INCLUDED_ | |
14 | |
15 | |
16 #define NGX_RESOLVE_A 1 | |
17 #define NGX_RESOLVE_CNAME 5 | |
18 #define NGX_RESOLVE_PTR 12 | |
19 #define NGX_RESOLVE_MX 15 | |
20 #define NGX_RESOLVE_TXT 16 | |
5477
98876ce2a7fd
Resolver: implemented IPv6 name to address resolving.
Ruslan Ermilov <ru@nginx.com>
parents:
5476
diff
changeset
|
21 #if (NGX_HAVE_INET6) |
98876ce2a7fd
Resolver: implemented IPv6 name to address resolving.
Ruslan Ermilov <ru@nginx.com>
parents:
5476
diff
changeset
|
22 #define NGX_RESOLVE_AAAA 28 |
98876ce2a7fd
Resolver: implemented IPv6 name to address resolving.
Ruslan Ermilov <ru@nginx.com>
parents:
5476
diff
changeset
|
23 #endif |
6458
384154fc634f
Resolver: added support for SRV records.
Dmitry Volyntsev <xeioex@nginx.com>
parents:
6456
diff
changeset
|
24 #define NGX_RESOLVE_SRV 33 |
1965 | 25 #define NGX_RESOLVE_DNAME 39 |
1649 | 26 |
27 #define NGX_RESOLVE_FORMERR 1 | |
28 #define NGX_RESOLVE_SERVFAIL 2 | |
29 #define NGX_RESOLVE_NXDOMAIN 3 | |
30 #define NGX_RESOLVE_NOTIMP 4 | |
31 #define NGX_RESOLVE_REFUSED 5 | |
32 #define NGX_RESOLVE_TIMEDOUT NGX_ETIMEDOUT | |
33 | |
34 | |
1683
1e0b028055ec
allow to use IP addresses without defined resolver
Igor Sysoev <igor@sysoev.ru>
parents:
1649
diff
changeset
|
35 #define NGX_NO_RESOLVER (void *) -1 |
1e0b028055ec
allow to use IP addresses without defined resolver
Igor Sysoev <igor@sysoev.ru>
parents:
1649
diff
changeset
|
36 |
1969 | 37 #define NGX_RESOLVER_MAX_RECURSION 50 |
38 | |
1683
1e0b028055ec
allow to use IP addresses without defined resolver
Igor Sysoev <igor@sysoev.ru>
parents:
1649
diff
changeset
|
39 |
6367 | 40 typedef struct ngx_resolver_s ngx_resolver_t; |
41 | |
42 | |
1649 | 43 typedef struct { |
6365
d35b4d590b2d
Resolver: renamed UDP-specific structures, fields and variables.
Roman Arutyunyan <arut@nginx.com>
parents:
6364
diff
changeset
|
44 ngx_connection_t *udp; |
6367 | 45 ngx_connection_t *tcp; |
1649 | 46 struct sockaddr *sockaddr; |
47 socklen_t socklen; | |
48 ngx_str_t server; | |
3408
71193a456616
add context to a resolver log
Igor Sysoev <igor@sysoev.ru>
parents:
3269
diff
changeset
|
49 ngx_log_t log; |
6367 | 50 ngx_buf_t *read_buf; |
51 ngx_buf_t *write_buf; | |
52 ngx_resolver_t *resolver; | |
6365
d35b4d590b2d
Resolver: renamed UDP-specific structures, fields and variables.
Roman Arutyunyan <arut@nginx.com>
parents:
6364
diff
changeset
|
53 } ngx_resolver_connection_t; |
1649 | 54 |
55 | |
56 typedef struct ngx_resolver_ctx_s ngx_resolver_ctx_t; | |
57 | |
58 typedef void (*ngx_resolver_handler_pt)(ngx_resolver_ctx_t *ctx); | |
59 | |
60 | |
61 typedef struct { | |
6458
384154fc634f
Resolver: added support for SRV records.
Dmitry Volyntsev <xeioex@nginx.com>
parents:
6456
diff
changeset
|
62 struct sockaddr *sockaddr; |
384154fc634f
Resolver: added support for SRV records.
Dmitry Volyntsev <xeioex@nginx.com>
parents:
6456
diff
changeset
|
63 socklen_t socklen; |
384154fc634f
Resolver: added support for SRV records.
Dmitry Volyntsev <xeioex@nginx.com>
parents:
6456
diff
changeset
|
64 ngx_str_t name; |
384154fc634f
Resolver: added support for SRV records.
Dmitry Volyntsev <xeioex@nginx.com>
parents:
6456
diff
changeset
|
65 u_short priority; |
384154fc634f
Resolver: added support for SRV records.
Dmitry Volyntsev <xeioex@nginx.com>
parents:
6456
diff
changeset
|
66 u_short weight; |
384154fc634f
Resolver: added support for SRV records.
Dmitry Volyntsev <xeioex@nginx.com>
parents:
6456
diff
changeset
|
67 } ngx_resolver_addr_t; |
384154fc634f
Resolver: added support for SRV records.
Dmitry Volyntsev <xeioex@nginx.com>
parents:
6456
diff
changeset
|
68 |
384154fc634f
Resolver: added support for SRV records.
Dmitry Volyntsev <xeioex@nginx.com>
parents:
6456
diff
changeset
|
69 |
384154fc634f
Resolver: added support for SRV records.
Dmitry Volyntsev <xeioex@nginx.com>
parents:
6456
diff
changeset
|
70 typedef struct { |
384154fc634f
Resolver: added support for SRV records.
Dmitry Volyntsev <xeioex@nginx.com>
parents:
6456
diff
changeset
|
71 ngx_str_t name; |
384154fc634f
Resolver: added support for SRV records.
Dmitry Volyntsev <xeioex@nginx.com>
parents:
6456
diff
changeset
|
72 u_short priority; |
384154fc634f
Resolver: added support for SRV records.
Dmitry Volyntsev <xeioex@nginx.com>
parents:
6456
diff
changeset
|
73 u_short weight; |
384154fc634f
Resolver: added support for SRV records.
Dmitry Volyntsev <xeioex@nginx.com>
parents:
6456
diff
changeset
|
74 u_short port; |
384154fc634f
Resolver: added support for SRV records.
Dmitry Volyntsev <xeioex@nginx.com>
parents:
6456
diff
changeset
|
75 } ngx_resolver_srv_t; |
384154fc634f
Resolver: added support for SRV records.
Dmitry Volyntsev <xeioex@nginx.com>
parents:
6456
diff
changeset
|
76 |
384154fc634f
Resolver: added support for SRV records.
Dmitry Volyntsev <xeioex@nginx.com>
parents:
6456
diff
changeset
|
77 |
384154fc634f
Resolver: added support for SRV records.
Dmitry Volyntsev <xeioex@nginx.com>
parents:
6456
diff
changeset
|
78 typedef struct { |
384154fc634f
Resolver: added support for SRV records.
Dmitry Volyntsev <xeioex@nginx.com>
parents:
6456
diff
changeset
|
79 ngx_str_t name; |
384154fc634f
Resolver: added support for SRV records.
Dmitry Volyntsev <xeioex@nginx.com>
parents:
6456
diff
changeset
|
80 u_short priority; |
384154fc634f
Resolver: added support for SRV records.
Dmitry Volyntsev <xeioex@nginx.com>
parents:
6456
diff
changeset
|
81 u_short weight; |
384154fc634f
Resolver: added support for SRV records.
Dmitry Volyntsev <xeioex@nginx.com>
parents:
6456
diff
changeset
|
82 u_short port; |
384154fc634f
Resolver: added support for SRV records.
Dmitry Volyntsev <xeioex@nginx.com>
parents:
6456
diff
changeset
|
83 |
384154fc634f
Resolver: added support for SRV records.
Dmitry Volyntsev <xeioex@nginx.com>
parents:
6456
diff
changeset
|
84 ngx_resolver_ctx_t *ctx; |
6714
c3e3de6d2672
Resolver: introduced state field in ngx_resolver_srv_name_t.
Dmitry Volyntsev <xeioex@nginx.com>
parents:
6458
diff
changeset
|
85 ngx_int_t state; |
6458
384154fc634f
Resolver: added support for SRV records.
Dmitry Volyntsev <xeioex@nginx.com>
parents:
6456
diff
changeset
|
86 |
384154fc634f
Resolver: added support for SRV records.
Dmitry Volyntsev <xeioex@nginx.com>
parents:
6456
diff
changeset
|
87 ngx_uint_t naddrs; |
384154fc634f
Resolver: added support for SRV records.
Dmitry Volyntsev <xeioex@nginx.com>
parents:
6456
diff
changeset
|
88 ngx_addr_t *addrs; |
384154fc634f
Resolver: added support for SRV records.
Dmitry Volyntsev <xeioex@nginx.com>
parents:
6456
diff
changeset
|
89 } ngx_resolver_srv_name_t; |
384154fc634f
Resolver: added support for SRV records.
Dmitry Volyntsev <xeioex@nginx.com>
parents:
6456
diff
changeset
|
90 |
384154fc634f
Resolver: added support for SRV records.
Dmitry Volyntsev <xeioex@nginx.com>
parents:
6456
diff
changeset
|
91 |
384154fc634f
Resolver: added support for SRV records.
Dmitry Volyntsev <xeioex@nginx.com>
parents:
6456
diff
changeset
|
92 typedef struct { |
6348
7316c57e4fe7
Resolver: fixed crashes in timeout handler.
Ruslan Ermilov <ru@nginx.com>
parents:
5921
diff
changeset
|
93 ngx_rbtree_node_t node; |
1649 | 94 ngx_queue_t queue; |
95 | |
6348
7316c57e4fe7
Resolver: fixed crashes in timeout handler.
Ruslan Ermilov <ru@nginx.com>
parents:
5921
diff
changeset
|
96 /* PTR: resolved name, A: name to resolve */ |
7316c57e4fe7
Resolver: fixed crashes in timeout handler.
Ruslan Ermilov <ru@nginx.com>
parents:
5921
diff
changeset
|
97 u_char *name; |
1649 | 98 |
5476
950c9ed3e66f
Resolver: implemented IPv6 address to name resolving.
Ruslan Ermilov <ru@nginx.com>
parents:
5475
diff
changeset
|
99 #if (NGX_HAVE_INET6) |
950c9ed3e66f
Resolver: implemented IPv6 address to name resolving.
Ruslan Ermilov <ru@nginx.com>
parents:
5475
diff
changeset
|
100 /* PTR: IPv6 address to resolve (IPv4 address is in rbtree node key) */ |
950c9ed3e66f
Resolver: implemented IPv6 address to name resolving.
Ruslan Ermilov <ru@nginx.com>
parents:
5475
diff
changeset
|
101 struct in6_addr addr6; |
950c9ed3e66f
Resolver: implemented IPv6 address to name resolving.
Ruslan Ermilov <ru@nginx.com>
parents:
5475
diff
changeset
|
102 #endif |
950c9ed3e66f
Resolver: implemented IPv6 address to name resolving.
Ruslan Ermilov <ru@nginx.com>
parents:
5475
diff
changeset
|
103 |
1649 | 104 u_short nlen; |
105 u_short qlen; | |
106 | |
107 u_char *query; | |
5477
98876ce2a7fd
Resolver: implemented IPv6 name to address resolving.
Ruslan Ermilov <ru@nginx.com>
parents:
5476
diff
changeset
|
108 #if (NGX_HAVE_INET6) |
98876ce2a7fd
Resolver: implemented IPv6 name to address resolving.
Ruslan Ermilov <ru@nginx.com>
parents:
5476
diff
changeset
|
109 u_char *query6; |
98876ce2a7fd
Resolver: implemented IPv6 name to address resolving.
Ruslan Ermilov <ru@nginx.com>
parents:
5476
diff
changeset
|
110 #endif |
1649 | 111 |
112 union { | |
113 in_addr_t addr; | |
114 in_addr_t *addrs; | |
115 u_char *cname; | |
6458
384154fc634f
Resolver: added support for SRV records.
Dmitry Volyntsev <xeioex@nginx.com>
parents:
6456
diff
changeset
|
116 ngx_resolver_srv_t *srvs; |
1649 | 117 } u; |
118 | |
5477
98876ce2a7fd
Resolver: implemented IPv6 name to address resolving.
Ruslan Ermilov <ru@nginx.com>
parents:
5476
diff
changeset
|
119 u_char code; |
1649 | 120 u_short naddrs; |
6458
384154fc634f
Resolver: added support for SRV records.
Dmitry Volyntsev <xeioex@nginx.com>
parents:
6456
diff
changeset
|
121 u_short nsrvs; |
1649 | 122 u_short cnlen; |
123 | |
5477
98876ce2a7fd
Resolver: implemented IPv6 name to address resolving.
Ruslan Ermilov <ru@nginx.com>
parents:
5476
diff
changeset
|
124 #if (NGX_HAVE_INET6) |
98876ce2a7fd
Resolver: implemented IPv6 name to address resolving.
Ruslan Ermilov <ru@nginx.com>
parents:
5476
diff
changeset
|
125 union { |
98876ce2a7fd
Resolver: implemented IPv6 name to address resolving.
Ruslan Ermilov <ru@nginx.com>
parents:
5476
diff
changeset
|
126 struct in6_addr addr6; |
98876ce2a7fd
Resolver: implemented IPv6 name to address resolving.
Ruslan Ermilov <ru@nginx.com>
parents:
5476
diff
changeset
|
127 struct in6_addr *addrs6; |
98876ce2a7fd
Resolver: implemented IPv6 name to address resolving.
Ruslan Ermilov <ru@nginx.com>
parents:
5476
diff
changeset
|
128 } u6; |
98876ce2a7fd
Resolver: implemented IPv6 name to address resolving.
Ruslan Ermilov <ru@nginx.com>
parents:
5476
diff
changeset
|
129 |
98876ce2a7fd
Resolver: implemented IPv6 name to address resolving.
Ruslan Ermilov <ru@nginx.com>
parents:
5476
diff
changeset
|
130 u_short naddrs6; |
98876ce2a7fd
Resolver: implemented IPv6 name to address resolving.
Ruslan Ermilov <ru@nginx.com>
parents:
5476
diff
changeset
|
131 #endif |
98876ce2a7fd
Resolver: implemented IPv6 name to address resolving.
Ruslan Ermilov <ru@nginx.com>
parents:
5476
diff
changeset
|
132 |
1649 | 133 time_t expire; |
134 time_t valid; | |
5477
98876ce2a7fd
Resolver: implemented IPv6 name to address resolving.
Ruslan Ermilov <ru@nginx.com>
parents:
5476
diff
changeset
|
135 uint32_t ttl; |
1649 | 136 |
6367 | 137 unsigned tcp:1; |
138 #if (NGX_HAVE_INET6) | |
139 unsigned tcp6:1; | |
140 #endif | |
141 | |
6366
2e5c027f2a98
Resolver: per-request DNS server balancer.
Roman Arutyunyan <arut@nginx.com>
parents:
6365
diff
changeset
|
142 ngx_uint_t last_connection; |
2e5c027f2a98
Resolver: per-request DNS server balancer.
Roman Arutyunyan <arut@nginx.com>
parents:
6365
diff
changeset
|
143 |
1649 | 144 ngx_resolver_ctx_t *waiting; |
145 } ngx_resolver_node_t; | |
146 | |
147 | |
6367 | 148 struct ngx_resolver_s { |
1649 | 149 /* has to be pointer because of "incomplete type" */ |
150 ngx_event_t *event; | |
4225
016352c19049
Support of several servers in the "resolver" directive.
Igor Sysoev <igor@sysoev.ru>
parents:
3408
diff
changeset
|
151 void *dummy; |
1649 | 152 ngx_log_t *log; |
153 | |
5921
5004210e8c78
Resolver: fixed debug event logging.
Ruslan Ermilov <ru@nginx.com>
parents:
5478
diff
changeset
|
154 /* event ident must be after 3 pointers as in ngx_connection_t */ |
1649 | 155 ngx_int_t ident; |
156 | |
4225
016352c19049
Support of several servers in the "resolver" directive.
Igor Sysoev <igor@sysoev.ru>
parents:
3408
diff
changeset
|
157 /* simple round robin DNS peers balancer */ |
6365
d35b4d590b2d
Resolver: renamed UDP-specific structures, fields and variables.
Roman Arutyunyan <arut@nginx.com>
parents:
6364
diff
changeset
|
158 ngx_array_t connections; |
4225
016352c19049
Support of several servers in the "resolver" directive.
Igor Sysoev <igor@sysoev.ru>
parents:
3408
diff
changeset
|
159 ngx_uint_t last_connection; |
016352c19049
Support of several servers in the "resolver" directive.
Igor Sysoev <igor@sysoev.ru>
parents:
3408
diff
changeset
|
160 |
1649 | 161 ngx_rbtree_t name_rbtree; |
162 ngx_rbtree_node_t name_sentinel; | |
163 | |
6458
384154fc634f
Resolver: added support for SRV records.
Dmitry Volyntsev <xeioex@nginx.com>
parents:
6456
diff
changeset
|
164 ngx_rbtree_t srv_rbtree; |
384154fc634f
Resolver: added support for SRV records.
Dmitry Volyntsev <xeioex@nginx.com>
parents:
6456
diff
changeset
|
165 ngx_rbtree_node_t srv_sentinel; |
384154fc634f
Resolver: added support for SRV records.
Dmitry Volyntsev <xeioex@nginx.com>
parents:
6456
diff
changeset
|
166 |
1649 | 167 ngx_rbtree_t addr_rbtree; |
168 ngx_rbtree_node_t addr_sentinel; | |
169 | |
170 ngx_queue_t name_resend_queue; | |
6458
384154fc634f
Resolver: added support for SRV records.
Dmitry Volyntsev <xeioex@nginx.com>
parents:
6456
diff
changeset
|
171 ngx_queue_t srv_resend_queue; |
1649 | 172 ngx_queue_t addr_resend_queue; |
173 | |
174 ngx_queue_t name_expire_queue; | |
6458
384154fc634f
Resolver: added support for SRV records.
Dmitry Volyntsev <xeioex@nginx.com>
parents:
6456
diff
changeset
|
175 ngx_queue_t srv_expire_queue; |
1649 | 176 ngx_queue_t addr_expire_queue; |
177 | |
8055
2a77754cd9fe
The "ipv4=" parameter of the "resolver" directive.
Ruslan Ermilov <ru@nginx.com>
parents:
7052
diff
changeset
|
178 unsigned ipv4:1; |
2a77754cd9fe
The "ipv4=" parameter of the "resolver" directive.
Ruslan Ermilov <ru@nginx.com>
parents:
7052
diff
changeset
|
179 |
5476
950c9ed3e66f
Resolver: implemented IPv6 address to name resolving.
Ruslan Ermilov <ru@nginx.com>
parents:
5475
diff
changeset
|
180 #if (NGX_HAVE_INET6) |
8055
2a77754cd9fe
The "ipv4=" parameter of the "resolver" directive.
Ruslan Ermilov <ru@nginx.com>
parents:
7052
diff
changeset
|
181 unsigned ipv6:1; |
5476
950c9ed3e66f
Resolver: implemented IPv6 address to name resolving.
Ruslan Ermilov <ru@nginx.com>
parents:
5475
diff
changeset
|
182 ngx_rbtree_t addr6_rbtree; |
950c9ed3e66f
Resolver: implemented IPv6 address to name resolving.
Ruslan Ermilov <ru@nginx.com>
parents:
5475
diff
changeset
|
183 ngx_rbtree_node_t addr6_sentinel; |
950c9ed3e66f
Resolver: implemented IPv6 address to name resolving.
Ruslan Ermilov <ru@nginx.com>
parents:
5475
diff
changeset
|
184 ngx_queue_t addr6_resend_queue; |
950c9ed3e66f
Resolver: implemented IPv6 address to name resolving.
Ruslan Ermilov <ru@nginx.com>
parents:
5475
diff
changeset
|
185 ngx_queue_t addr6_expire_queue; |
950c9ed3e66f
Resolver: implemented IPv6 address to name resolving.
Ruslan Ermilov <ru@nginx.com>
parents:
5475
diff
changeset
|
186 #endif |
950c9ed3e66f
Resolver: implemented IPv6 address to name resolving.
Ruslan Ermilov <ru@nginx.com>
parents:
5475
diff
changeset
|
187 |
1649 | 188 time_t resend_timeout; |
6367 | 189 time_t tcp_timeout; |
1649 | 190 time_t expire; |
191 time_t valid; | |
192 | |
193 ngx_uint_t log_level; | |
6367 | 194 }; |
1649 | 195 |
196 | |
197 struct ngx_resolver_ctx_s { | |
198 ngx_resolver_ctx_t *next; | |
199 ngx_resolver_t *resolver; | |
6364
69977457e1a6
Resolver: removed unused field from ngx_resolver_ctx_t.
Roman Arutyunyan <arut@nginx.com>
parents:
6351
diff
changeset
|
200 ngx_resolver_node_t *node; |
1649 | 201 |
6348
7316c57e4fe7
Resolver: fixed crashes in timeout handler.
Ruslan Ermilov <ru@nginx.com>
parents:
5921
diff
changeset
|
202 /* event ident must be after 3 pointers as in ngx_connection_t */ |
7316c57e4fe7
Resolver: fixed crashes in timeout handler.
Ruslan Ermilov <ru@nginx.com>
parents:
5921
diff
changeset
|
203 ngx_int_t ident; |
7316c57e4fe7
Resolver: fixed crashes in timeout handler.
Ruslan Ermilov <ru@nginx.com>
parents:
5921
diff
changeset
|
204 |
1649 | 205 ngx_int_t state; |
206 ngx_str_t name; | |
6458
384154fc634f
Resolver: added support for SRV records.
Dmitry Volyntsev <xeioex@nginx.com>
parents:
6456
diff
changeset
|
207 ngx_str_t service; |
1649 | 208 |
6456
c94aba230a5a
Resolver: introduced valid field in resolver responses.
Dmitry Volyntsev <xeioex@nginx.com>
parents:
6367
diff
changeset
|
209 time_t valid; |
1649 | 210 ngx_uint_t naddrs; |
6458
384154fc634f
Resolver: added support for SRV records.
Dmitry Volyntsev <xeioex@nginx.com>
parents:
6456
diff
changeset
|
211 ngx_resolver_addr_t *addrs; |
384154fc634f
Resolver: added support for SRV records.
Dmitry Volyntsev <xeioex@nginx.com>
parents:
6456
diff
changeset
|
212 ngx_resolver_addr_t addr; |
5475
07dd5bd222ac
Changed resolver API to use ngx_addr_t.
Ruslan Ermilov <ru@nginx.com>
parents:
4412
diff
changeset
|
213 struct sockaddr_in sin; |
1649 | 214 |
6458
384154fc634f
Resolver: added support for SRV records.
Dmitry Volyntsev <xeioex@nginx.com>
parents:
6456
diff
changeset
|
215 ngx_uint_t count; |
384154fc634f
Resolver: added support for SRV records.
Dmitry Volyntsev <xeioex@nginx.com>
parents:
6456
diff
changeset
|
216 ngx_uint_t nsrvs; |
384154fc634f
Resolver: added support for SRV records.
Dmitry Volyntsev <xeioex@nginx.com>
parents:
6456
diff
changeset
|
217 ngx_resolver_srv_name_t *srvs; |
384154fc634f
Resolver: added support for SRV records.
Dmitry Volyntsev <xeioex@nginx.com>
parents:
6456
diff
changeset
|
218 |
1649 | 219 ngx_resolver_handler_pt handler; |
220 void *data; | |
221 ngx_msec_t timeout; | |
222 | |
7040
d49b74a683b1
Resolver: added the "async" flag to resolver context.
Roman Arutyunyan <arut@nginx.com>
parents:
6714
diff
changeset
|
223 unsigned quick:1; |
d49b74a683b1
Resolver: added the "async" flag to resolver context.
Roman Arutyunyan <arut@nginx.com>
parents:
6714
diff
changeset
|
224 unsigned async:1; |
7052
70e65bf8dfd7
Resolver: cancelable resend timer event.
Ruslan Ermilov <ru@nginx.com>
parents:
7040
diff
changeset
|
225 unsigned cancelable:1; |
1969 | 226 ngx_uint_t recursion; |
1649 | 227 ngx_event_t *event; |
228 }; | |
229 | |
230 | |
4225
016352c19049
Support of several servers in the "resolver" directive.
Igor Sysoev <igor@sysoev.ru>
parents:
3408
diff
changeset
|
231 ngx_resolver_t *ngx_resolver_create(ngx_conf_t *cf, ngx_str_t *names, |
016352c19049
Support of several servers in the "resolver" directive.
Igor Sysoev <igor@sysoev.ru>
parents:
3408
diff
changeset
|
232 ngx_uint_t n); |
1649 | 233 ngx_resolver_ctx_t *ngx_resolve_start(ngx_resolver_t *r, |
234 ngx_resolver_ctx_t *temp); | |
235 ngx_int_t ngx_resolve_name(ngx_resolver_ctx_t *ctx); | |
236 void ngx_resolve_name_done(ngx_resolver_ctx_t *ctx); | |
237 ngx_int_t ngx_resolve_addr(ngx_resolver_ctx_t *ctx); | |
238 void ngx_resolve_addr_done(ngx_resolver_ctx_t *ctx); | |
239 char *ngx_resolver_strerror(ngx_int_t err); | |
240 | |
241 | |
242 #endif /* _NGX_RESOLVER_H_INCLUDED_ */ |