Mercurial > hg > nginx-quic
annotate src/http/ngx_http_upstream.h @ 2386:4ccaa42de633
use already available r and u instead of ev
author | Igor Sysoev <igor@sysoev.ru> |
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date | Tue, 09 Dec 2008 17:25:03 +0000 |
parents | 87b8c44906b5 |
children | d88e757cc7d8 |
rev | line source |
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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 | |
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23 #define NGX_HTTP_UPSTREAM_FT_HTTP_502 0x00000020 |
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24 #define NGX_HTTP_UPSTREAM_FT_HTTP_503 0x00000040 |
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25 #define NGX_HTTP_UPSTREAM_FT_HTTP_504 0x00000080 |
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26 #define NGX_HTTP_UPSTREAM_FT_HTTP_404 0x00000100 |
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27 #define NGX_HTTP_UPSTREAM_FT_BUSY_LOCK 0x00000200 |
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28 #define NGX_HTTP_UPSTREAM_FT_MAX_WAITING 0x00000400 |
1378 | 29 #define NGX_HTTP_UPSTREAM_FT_NOLIVE 0x40000000 |
665 | 30 #define NGX_HTTP_UPSTREAM_FT_OFF 0x80000000 |
479 | 31 |
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32 #define NGX_HTTP_UPSTREAM_FT_STATUS (NGX_HTTP_UPSTREAM_FT_HTTP_500 \ |
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33 |NGX_HTTP_UPSTREAM_FT_HTTP_502 \ |
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34 |NGX_HTTP_UPSTREAM_FT_HTTP_503 \ |
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35 |NGX_HTTP_UPSTREAM_FT_HTTP_504 \ |
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36 |NGX_HTTP_UPSTREAM_FT_HTTP_404) |
479 | 37 |
38 #define NGX_HTTP_UPSTREAM_INVALID_HEADER 40 | |
39 | |
40 | |
41 typedef struct { | |
563 | 42 ngx_msec_t bl_time; |
509 | 43 ngx_uint_t bl_state; |
479 | 44 |
509 | 45 ngx_uint_t status; |
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46 time_t response_sec; |
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47 ngx_uint_t response_msec; |
563 | 48 |
509 | 49 ngx_str_t *peer; |
479 | 50 } ngx_http_upstream_state_t; |
51 | |
52 | |
53 typedef struct { | |
649 | 54 ngx_hash_t headers_in_hash; |
651 | 55 ngx_array_t upstreams; |
884 | 56 /* ngx_http_upstream_srv_conf_t */ |
509 | 57 } ngx_http_upstream_main_conf_t; |
58 | |
884 | 59 typedef struct ngx_http_upstream_srv_conf_s ngx_http_upstream_srv_conf_t; |
60 | |
61 typedef ngx_int_t (*ngx_http_upstream_init_pt)(ngx_conf_t *cf, | |
62 ngx_http_upstream_srv_conf_t *us); | |
63 typedef ngx_int_t (*ngx_http_upstream_init_peer_pt)(ngx_http_request_t *r, | |
64 ngx_http_upstream_srv_conf_t *us); | |
65 | |
66 | |
67 typedef struct { | |
68 ngx_http_upstream_init_pt init_upstream; | |
69 ngx_http_upstream_init_peer_pt init; | |
70 void *data; | |
71 } ngx_http_upstream_peer_t; | |
72 | |
509 | 73 |
74 typedef struct { | |
884 | 75 ngx_peer_addr_t *addrs; |
76 ngx_uint_t naddrs; | |
77 ngx_uint_t weight; | |
78 ngx_uint_t max_fails; | |
79 time_t fail_timeout; | |
80 | |
81 unsigned down:1; | |
82 unsigned backup:1; | |
83 } ngx_http_upstream_server_t; | |
84 | |
651 | 85 |
884 | 86 #define NGX_HTTP_UPSTREAM_CREATE 0x0001 |
87 #define NGX_HTTP_UPSTREAM_WEIGHT 0x0002 | |
88 #define NGX_HTTP_UPSTREAM_MAX_FAILS 0x0004 | |
89 #define NGX_HTTP_UPSTREAM_FAIL_TIMEOUT 0x0008 | |
90 #define NGX_HTTP_UPSTREAM_DOWN 0x0010 | |
91 #define NGX_HTTP_UPSTREAM_BACKUP 0x0020 | |
92 | |
651 | 93 |
884 | 94 struct ngx_http_upstream_srv_conf_s { |
95 ngx_http_upstream_peer_t peer; | |
96 void **srv_conf; | |
97 | |
98 ngx_array_t *servers; /* ngx_http_upstream_server_t */ | |
99 | |
100 ngx_uint_t flags; | |
651 | 101 ngx_str_t host; |
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102 u_char *file_name; |
651 | 103 ngx_uint_t line; |
104 in_port_t port; | |
906 | 105 in_port_t default_port; |
884 | 106 }; |
651 | 107 |
108 | |
109 typedef struct { | |
884 | 110 ngx_http_upstream_srv_conf_t *upstream; |
111 | |
509 | 112 ngx_msec_t connect_timeout; |
113 ngx_msec_t send_timeout; | |
114 ngx_msec_t read_timeout; | |
527 | 115 ngx_msec_t timeout; |
479 | 116 |
509 | 117 size_t send_lowat; |
581 | 118 size_t buffer_size; |
529 | 119 |
509 | 120 size_t busy_buffers_size; |
121 size_t max_temp_file_size; | |
122 size_t temp_file_write_size; | |
123 | |
529 | 124 size_t busy_buffers_size_conf; |
125 size_t max_temp_file_size_conf; | |
126 size_t temp_file_write_size_conf; | |
127 | |
509 | 128 ngx_uint_t next_upstream; |
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129 ngx_uint_t store_access; |
479 | 130 |
509 | 131 ngx_bufs_t bufs; |
479 | 132 |
581 | 133 ngx_flag_t buffering; |
509 | 134 ngx_flag_t pass_request_headers; |
135 ngx_flag_t pass_request_body; | |
136 | |
629 | 137 ngx_flag_t ignore_client_abort; |
657 | 138 ngx_flag_t intercept_errors; |
509 | 139 ngx_flag_t cyclic_temp_file; |
479 | 140 |
649 | 141 ngx_path_t *temp_path; |
479 | 142 |
649 | 143 ngx_hash_t hide_headers_hash; |
144 ngx_array_t *hide_headers; | |
145 ngx_array_t *pass_headers; | |
509 | 146 |
147 ngx_str_t schema; | |
577 | 148 |
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149 ngx_array_t *store_lengths; |
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150 ngx_array_t *store_values; |
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151 |
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152 signed store:2; |
675 | 153 unsigned intercept_404:1; |
649 | 154 unsigned change_buffering:1; |
581 | 155 |
577 | 156 #if (NGX_HTTP_SSL) |
157 ngx_ssl_t *ssl; | |
2184 | 158 ngx_flag_t ssl_session_reuse; |
577 | 159 #endif |
160 | |
479 | 161 } ngx_http_upstream_conf_t; |
162 | |
163 | |
509 | 164 typedef struct { |
165 ngx_str_t name; | |
166 ngx_http_header_handler_pt handler; | |
167 ngx_uint_t offset; | |
168 ngx_http_header_handler_pt copy_handler; | |
169 ngx_uint_t conf; | |
515 | 170 ngx_uint_t redirect; /* unsigned redirect:1; */ |
509 | 171 } ngx_http_upstream_header_t; |
172 | |
173 | |
174 typedef struct { | |
175 ngx_list_t headers; | |
176 | |
529 | 177 ngx_uint_t status_n; |
178 ngx_str_t status_line; | |
179 | |
509 | 180 ngx_table_elt_t *status; |
181 ngx_table_elt_t *date; | |
182 ngx_table_elt_t *server; | |
183 ngx_table_elt_t *connection; | |
184 | |
185 ngx_table_elt_t *expires; | |
186 ngx_table_elt_t *etag; | |
187 ngx_table_elt_t *x_accel_expires; | |
515 | 188 ngx_table_elt_t *x_accel_redirect; |
527 | 189 ngx_table_elt_t *x_accel_limit_rate; |
509 | 190 |
191 ngx_table_elt_t *content_type; | |
192 ngx_table_elt_t *content_length; | |
193 | |
194 ngx_table_elt_t *last_modified; | |
195 ngx_table_elt_t *location; | |
196 ngx_table_elt_t *accept_ranges; | |
529 | 197 ngx_table_elt_t *www_authenticate; |
509 | 198 |
199 #if (NGX_HTTP_GZIP) | |
200 ngx_table_elt_t *content_encoding; | |
201 #endif | |
202 | |
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203 off_t content_length_n; |
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204 |
509 | 205 ngx_array_t cache_control; |
206 } ngx_http_upstream_headers_in_t; | |
207 | |
479 | 208 |
1658 | 209 typedef struct { |
210 ngx_str_t host; | |
211 in_port_t port; | |
2285 | 212 ngx_uint_t no_port; /* unsigned no_port:1 */ |
1658 | 213 ngx_uint_t naddrs; |
214 in_addr_t *addrs; | |
215 ngx_resolver_ctx_t *ctx; | |
216 } ngx_http_upstream_resolved_t; | |
217 | |
218 | |
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219 typedef void (*ngx_http_upstream_handler_pt)(ngx_http_request_t *r, |
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220 ngx_http_upstream_t *u); |
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221 |
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222 |
479 | 223 struct ngx_http_upstream_s { |
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224 ngx_http_upstream_handler_pt read_event_handler; |
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225 ngx_http_upstream_handler_pt write_event_handler; |
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226 |
509 | 227 ngx_peer_connection_t peer; |
479 | 228 |
581 | 229 ngx_event_pipe_t *pipe; |
479 | 230 |
509 | 231 ngx_chain_t *request_bufs; |
479 | 232 |
509 | 233 ngx_output_chain_ctx_t output; |
234 ngx_chain_writer_ctx_t writer; | |
479 | 235 |
509 | 236 ngx_http_upstream_conf_t *conf; |
479 | 237 |
509 | 238 ngx_http_upstream_headers_in_t headers_in; |
239 | |
1658 | 240 ngx_http_upstream_resolved_t *resolved; |
241 | |
581 | 242 ngx_buf_t buffer; |
243 size_t length; | |
244 | |
245 ngx_chain_t *out_bufs; | |
246 ngx_chain_t *busy_bufs; | |
247 ngx_chain_t *free_bufs; | |
248 | |
249 ngx_int_t (*input_filter_init)(void *data); | |
250 ngx_int_t (*input_filter)(void *data, ssize_t bytes); | |
251 void *input_filter_ctx; | |
479 | 252 |
509 | 253 ngx_int_t (*create_request)(ngx_http_request_t *r); |
254 ngx_int_t (*reinit_request)(ngx_http_request_t *r); | |
255 ngx_int_t (*process_header)(ngx_http_request_t *r); | |
256 void (*abort_request)(ngx_http_request_t *r); | |
257 void (*finalize_request)(ngx_http_request_t *r, | |
258 ngx_int_t rc); | |
259 ngx_int_t (*rewrite_redirect)(ngx_http_request_t *r, | |
260 ngx_table_elt_t *h, size_t prefix); | |
479 | 261 |
527 | 262 ngx_msec_t timeout; |
263 | |
509 | 264 ngx_http_upstream_state_t *state; |
479 | 265 |
1658 | 266 ngx_str_t method; |
267 ngx_str_t schema; | |
555 | 268 ngx_str_t uri; |
269 | |
569 | 270 ngx_http_cleanup_pt *cleanup; |
271 | |
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272 unsigned store:1; |
1565 | 273 unsigned cacheable:1; |
509 | 274 unsigned accel:1; |
1658 | 275 unsigned ssl:1; |
479 | 276 |
649 | 277 unsigned buffering:1; |
278 | |
509 | 279 unsigned request_sent:1; |
280 unsigned header_sent:1; | |
479 | 281 }; |
282 | |
283 | |
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284 typedef struct { |
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285 ngx_uint_t status; |
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286 ngx_uint_t mask; |
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287 } ngx_http_upstream_next_t; |
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288 |
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289 |
1162 | 290 ngx_int_t ngx_http_upstream_header_variable(ngx_http_request_t *r, |
291 ngx_http_variable_value_t *v, uintptr_t data); | |
292 | |
479 | 293 void ngx_http_upstream_init(ngx_http_request_t *r); |
651 | 294 ngx_http_upstream_srv_conf_t *ngx_http_upstream_add(ngx_conf_t *cf, |
884 | 295 ngx_url_t *u, ngx_uint_t flags); |
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296 ngx_int_t ngx_http_upstream_hide_headers_hash(ngx_conf_t *cf, |
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297 ngx_http_upstream_conf_t *conf, ngx_http_upstream_conf_t *prev, |
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298 ngx_str_t *default_hide_headers, ngx_hash_init_t *hash); |
884 | 299 |
300 | |
301 #define ngx_http_conf_upstream_srv_conf(uscf, module) \ | |
302 uscf->srv_conf[module.ctx_index] | |
509 | 303 |
479 | 304 |
509 | 305 extern ngx_module_t ngx_http_upstream_module; |
479 | 306 |
307 | |
308 #endif /* _NGX_HTTP_UPSTREAM_H_INCLUDED_ */ |