Mercurial > hg > nginx
annotate src/http/ngx_http_upstream.h @ 1617:cacb565c554e stable-0.5
r1254, r1416, r1493 merge:
the "www.example.*" wildcard hash support
author | Igor Sysoev <igor@sysoev.ru> |
---|---|
date | Wed, 07 Nov 2007 13:39:53 +0000 |
parents | 9b10ba85b249 |
children | 6b81bbc36eaf |
rev | line source |
---|---|
479 | 1 |
2 /* | |
3 * Copyright (C) Igor Sysoev | |
4 */ | |
5 | |
6 | |
7 #ifndef _NGX_HTTP_UPSTREAM_H_INCLUDED_ | |
8 #define _NGX_HTTP_UPSTREAM_H_INCLUDED_ | |
9 | |
10 | |
11 #include <ngx_config.h> | |
12 #include <ngx_core.h> | |
13 #include <ngx_event.h> | |
14 #include <ngx_event_connect.h> | |
15 #include <ngx_event_pipe.h> | |
16 #include <ngx_http.h> | |
17 | |
18 | |
665 | 19 #define NGX_HTTP_UPSTREAM_FT_ERROR 0x00000002 |
20 #define NGX_HTTP_UPSTREAM_FT_TIMEOUT 0x00000004 | |
21 #define NGX_HTTP_UPSTREAM_FT_INVALID_HEADER 0x00000008 | |
22 #define NGX_HTTP_UPSTREAM_FT_HTTP_500 0x00000010 | |
23 #define NGX_HTTP_UPSTREAM_FT_HTTP_503 0x00000020 | |
24 #define NGX_HTTP_UPSTREAM_FT_HTTP_404 0x00000040 | |
25 #define NGX_HTTP_UPSTREAM_FT_BUSY_LOCK 0x00000080 | |
26 #define NGX_HTTP_UPSTREAM_FT_MAX_WAITING 0x00000100 | |
27 #define NGX_HTTP_UPSTREAM_FT_OFF 0x80000000 | |
479 | 28 |
29 | |
30 #define NGX_HTTP_UPSTREAM_INVALID_HEADER 40 | |
31 | |
32 | |
33 typedef struct { | |
563 | 34 ngx_msec_t bl_time; |
509 | 35 ngx_uint_t bl_state; |
479 | 36 |
509 | 37 ngx_uint_t status; |
889
a9a7e4b1a72b
the previous fix does not actually fix overflow
Igor Sysoev <igor@sysoev.ru>
parents:
884
diff
changeset
|
38 time_t response_sec; |
a9a7e4b1a72b
the previous fix does not actually fix overflow
Igor Sysoev <igor@sysoev.ru>
parents:
884
diff
changeset
|
39 ngx_uint_t response_msec; |
563 | 40 |
509 | 41 ngx_str_t *peer; |
479 | 42 } ngx_http_upstream_state_t; |
43 | |
44 | |
45 typedef struct { | |
649 | 46 ngx_hash_t headers_in_hash; |
651 | 47 ngx_array_t upstreams; |
884 | 48 /* ngx_http_upstream_srv_conf_t */ |
509 | 49 } ngx_http_upstream_main_conf_t; |
50 | |
884 | 51 typedef struct ngx_http_upstream_srv_conf_s ngx_http_upstream_srv_conf_t; |
52 | |
53 typedef ngx_int_t (*ngx_http_upstream_init_pt)(ngx_conf_t *cf, | |
54 ngx_http_upstream_srv_conf_t *us); | |
55 typedef ngx_int_t (*ngx_http_upstream_init_peer_pt)(ngx_http_request_t *r, | |
56 ngx_http_upstream_srv_conf_t *us); | |
57 | |
58 | |
59 typedef struct { | |
60 ngx_http_upstream_init_pt init_upstream; | |
61 ngx_http_upstream_init_peer_pt init; | |
62 void *data; | |
63 } ngx_http_upstream_peer_t; | |
64 | |
509 | 65 |
66 typedef struct { | |
884 | 67 ngx_peer_addr_t *addrs; |
68 ngx_uint_t naddrs; | |
69 ngx_uint_t weight; | |
70 ngx_uint_t max_fails; | |
71 time_t fail_timeout; | |
72 | |
73 unsigned down:1; | |
74 unsigned backup:1; | |
75 } ngx_http_upstream_server_t; | |
76 | |
651 | 77 |
884 | 78 #define NGX_HTTP_UPSTREAM_CREATE 0x0001 |
79 #define NGX_HTTP_UPSTREAM_WEIGHT 0x0002 | |
80 #define NGX_HTTP_UPSTREAM_MAX_FAILS 0x0004 | |
81 #define NGX_HTTP_UPSTREAM_FAIL_TIMEOUT 0x0008 | |
82 #define NGX_HTTP_UPSTREAM_DOWN 0x0010 | |
83 #define NGX_HTTP_UPSTREAM_BACKUP 0x0020 | |
84 | |
651 | 85 |
884 | 86 struct ngx_http_upstream_srv_conf_s { |
87 ngx_http_upstream_peer_t peer; | |
88 void **srv_conf; | |
89 | |
90 ngx_array_t *servers; /* ngx_http_upstream_server_t */ | |
91 | |
92 ngx_uint_t flags; | |
651 | 93 ngx_str_t host; |
1533 | 94 u_char *file_name; |
651 | 95 ngx_uint_t line; |
96 in_port_t port; | |
906 | 97 in_port_t default_port; |
884 | 98 }; |
651 | 99 |
100 | |
101 typedef struct { | |
884 | 102 ngx_http_upstream_srv_conf_t *upstream; |
103 | |
509 | 104 ngx_msec_t connect_timeout; |
105 ngx_msec_t send_timeout; | |
106 ngx_msec_t read_timeout; | |
527 | 107 ngx_msec_t timeout; |
479 | 108 |
509 | 109 size_t send_lowat; |
581 | 110 size_t buffer_size; |
529 | 111 |
509 | 112 size_t busy_buffers_size; |
113 size_t max_temp_file_size; | |
114 size_t temp_file_write_size; | |
115 | |
529 | 116 size_t busy_buffers_size_conf; |
117 size_t max_temp_file_size_conf; | |
118 size_t temp_file_write_size_conf; | |
119 | |
509 | 120 ngx_uint_t next_upstream; |
1381 | 121 ngx_uint_t store_access; |
479 | 122 |
509 | 123 ngx_bufs_t bufs; |
479 | 124 |
581 | 125 ngx_flag_t buffering; |
509 | 126 ngx_flag_t pass_request_headers; |
127 ngx_flag_t pass_request_body; | |
128 | |
629 | 129 ngx_flag_t ignore_client_abort; |
657 | 130 ngx_flag_t intercept_errors; |
509 | 131 ngx_flag_t cyclic_temp_file; |
479 | 132 |
649 | 133 ngx_path_t *temp_path; |
479 | 134 |
649 | 135 ngx_hash_t hide_headers_hash; |
136 ngx_array_t *hide_headers; | |
137 ngx_array_t *pass_headers; | |
509 | 138 |
139 ngx_str_t schema; | |
140 ngx_str_t uri; | |
573 | 141 ngx_str_t location; |
509 | 142 ngx_str_t url; /* used in proxy_rewrite_location */ |
577 | 143 |
1381 | 144 ngx_array_t *store_lengths; |
145 ngx_array_t *store_values; | |
146 | |
147 signed store:2; | |
675 | 148 unsigned intercept_404:1; |
649 | 149 unsigned change_buffering:1; |
581 | 150 |
577 | 151 #if (NGX_HTTP_SSL) |
152 ngx_ssl_t *ssl; | |
153 #endif | |
154 | |
479 | 155 } ngx_http_upstream_conf_t; |
156 | |
157 | |
509 | 158 typedef struct { |
159 ngx_str_t name; | |
160 ngx_http_header_handler_pt handler; | |
161 ngx_uint_t offset; | |
162 ngx_http_header_handler_pt copy_handler; | |
163 ngx_uint_t conf; | |
515 | 164 ngx_uint_t redirect; /* unsigned redirect:1; */ |
509 | 165 } ngx_http_upstream_header_t; |
166 | |
167 | |
168 typedef struct { | |
169 ngx_list_t headers; | |
170 | |
529 | 171 ngx_uint_t status_n; |
172 ngx_str_t status_line; | |
173 | |
509 | 174 ngx_table_elt_t *status; |
175 ngx_table_elt_t *date; | |
176 ngx_table_elt_t *server; | |
177 ngx_table_elt_t *connection; | |
178 | |
179 ngx_table_elt_t *expires; | |
180 ngx_table_elt_t *etag; | |
181 ngx_table_elt_t *x_accel_expires; | |
515 | 182 ngx_table_elt_t *x_accel_redirect; |
527 | 183 ngx_table_elt_t *x_accel_limit_rate; |
509 | 184 |
185 ngx_table_elt_t *content_type; | |
186 ngx_table_elt_t *content_length; | |
187 | |
188 ngx_table_elt_t *last_modified; | |
189 ngx_table_elt_t *location; | |
190 ngx_table_elt_t *accept_ranges; | |
529 | 191 ngx_table_elt_t *www_authenticate; |
509 | 192 |
193 #if (NGX_HTTP_GZIP) | |
194 ngx_table_elt_t *content_encoding; | |
195 #endif | |
196 | |
197 ngx_array_t cache_control; | |
198 } ngx_http_upstream_headers_in_t; | |
199 | |
479 | 200 |
201 struct ngx_http_upstream_s { | |
509 | 202 ngx_peer_connection_t peer; |
479 | 203 |
581 | 204 ngx_event_pipe_t *pipe; |
479 | 205 |
509 | 206 ngx_chain_t *request_bufs; |
479 | 207 |
509 | 208 ngx_output_chain_ctx_t output; |
209 ngx_chain_writer_ctx_t writer; | |
479 | 210 |
509 | 211 ngx_http_upstream_conf_t *conf; |
479 | 212 |
509 | 213 ngx_http_upstream_headers_in_t headers_in; |
214 | |
581 | 215 ngx_buf_t buffer; |
216 size_t length; | |
217 | |
218 ngx_chain_t *out_bufs; | |
219 ngx_chain_t *busy_bufs; | |
220 ngx_chain_t *free_bufs; | |
221 | |
222 ngx_int_t (*input_filter_init)(void *data); | |
223 ngx_int_t (*input_filter)(void *data, ssize_t bytes); | |
224 void *input_filter_ctx; | |
479 | 225 |
509 | 226 ngx_int_t (*create_request)(ngx_http_request_t *r); |
227 ngx_int_t (*reinit_request)(ngx_http_request_t *r); | |
228 ngx_int_t (*process_header)(ngx_http_request_t *r); | |
229 void (*abort_request)(ngx_http_request_t *r); | |
230 void (*finalize_request)(ngx_http_request_t *r, | |
231 ngx_int_t rc); | |
232 ngx_int_t (*rewrite_redirect)(ngx_http_request_t *r, | |
233 ngx_table_elt_t *h, size_t prefix); | |
479 | 234 |
527 | 235 ngx_msec_t timeout; |
236 | |
561 | 237 ngx_str_t method; |
479 | 238 |
509 | 239 ngx_http_upstream_state_t *state; |
479 | 240 |
555 | 241 ngx_str_t uri; |
242 | |
569 | 243 ngx_http_cleanup_pt *cleanup; |
244 | |
1381 | 245 unsigned store:1; |
509 | 246 unsigned cachable:1; |
247 unsigned accel:1; | |
479 | 248 |
649 | 249 unsigned buffering:1; |
250 | |
509 | 251 unsigned request_sent:1; |
252 unsigned header_sent:1; | |
479 | 253 }; |
254 | |
255 | |
1162 | 256 ngx_int_t ngx_http_upstream_header_variable(ngx_http_request_t *r, |
257 ngx_http_variable_value_t *v, uintptr_t data); | |
258 | |
479 | 259 void ngx_http_upstream_init(ngx_http_request_t *r); |
651 | 260 ngx_http_upstream_srv_conf_t *ngx_http_upstream_add(ngx_conf_t *cf, |
884 | 261 ngx_url_t *u, ngx_uint_t flags); |
262 | |
263 | |
264 #define ngx_http_conf_upstream_srv_conf(uscf, module) \ | |
265 uscf->srv_conf[module.ctx_index] | |
509 | 266 |
479 | 267 |
509 | 268 extern ngx_module_t ngx_http_upstream_module; |
479 | 269 |
270 | |
271 #endif /* _NGX_HTTP_UPSTREAM_H_INCLUDED_ */ |