Mercurial > hg > nginx-quic
annotate src/http/ngx_http_upstream.h @ 2510:fa03c3846ca4
add debug logging
author | Igor Sysoev <igor@sysoev.ru> |
---|---|
date | Wed, 18 Feb 2009 09:24:14 +0000 |
parents | 7af1e5fe102c |
children | 3a8a53c0c42f |
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; |
2402 | 48 off_t response_length; |
563 | 49 |
509 | 50 ngx_str_t *peer; |
479 | 51 } ngx_http_upstream_state_t; |
52 | |
53 | |
54 typedef struct { | |
649 | 55 ngx_hash_t headers_in_hash; |
651 | 56 ngx_array_t upstreams; |
884 | 57 /* ngx_http_upstream_srv_conf_t */ |
509 | 58 } ngx_http_upstream_main_conf_t; |
59 | |
884 | 60 typedef struct ngx_http_upstream_srv_conf_s ngx_http_upstream_srv_conf_t; |
61 | |
62 typedef ngx_int_t (*ngx_http_upstream_init_pt)(ngx_conf_t *cf, | |
63 ngx_http_upstream_srv_conf_t *us); | |
64 typedef ngx_int_t (*ngx_http_upstream_init_peer_pt)(ngx_http_request_t *r, | |
65 ngx_http_upstream_srv_conf_t *us); | |
66 | |
67 | |
68 typedef struct { | |
69 ngx_http_upstream_init_pt init_upstream; | |
70 ngx_http_upstream_init_peer_pt init; | |
71 void *data; | |
72 } ngx_http_upstream_peer_t; | |
73 | |
509 | 74 |
75 typedef struct { | |
884 | 76 ngx_peer_addr_t *addrs; |
77 ngx_uint_t naddrs; | |
78 ngx_uint_t weight; | |
79 ngx_uint_t max_fails; | |
80 time_t fail_timeout; | |
81 | |
82 unsigned down:1; | |
83 unsigned backup:1; | |
84 } ngx_http_upstream_server_t; | |
85 | |
651 | 86 |
884 | 87 #define NGX_HTTP_UPSTREAM_CREATE 0x0001 |
88 #define NGX_HTTP_UPSTREAM_WEIGHT 0x0002 | |
89 #define NGX_HTTP_UPSTREAM_MAX_FAILS 0x0004 | |
90 #define NGX_HTTP_UPSTREAM_FAIL_TIMEOUT 0x0008 | |
91 #define NGX_HTTP_UPSTREAM_DOWN 0x0010 | |
92 #define NGX_HTTP_UPSTREAM_BACKUP 0x0020 | |
93 | |
651 | 94 |
884 | 95 struct ngx_http_upstream_srv_conf_s { |
96 ngx_http_upstream_peer_t peer; | |
97 void **srv_conf; | |
98 | |
99 ngx_array_t *servers; /* ngx_http_upstream_server_t */ | |
100 | |
101 ngx_uint_t flags; | |
651 | 102 ngx_str_t host; |
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103 u_char *file_name; |
651 | 104 ngx_uint_t line; |
105 in_port_t port; | |
906 | 106 in_port_t default_port; |
884 | 107 }; |
651 | 108 |
109 | |
110 typedef struct { | |
884 | 111 ngx_http_upstream_srv_conf_t *upstream; |
112 | |
509 | 113 ngx_msec_t connect_timeout; |
114 ngx_msec_t send_timeout; | |
115 ngx_msec_t read_timeout; | |
527 | 116 ngx_msec_t timeout; |
479 | 117 |
509 | 118 size_t send_lowat; |
581 | 119 size_t buffer_size; |
529 | 120 |
509 | 121 size_t busy_buffers_size; |
122 size_t max_temp_file_size; | |
123 size_t temp_file_write_size; | |
124 | |
529 | 125 size_t busy_buffers_size_conf; |
126 size_t max_temp_file_size_conf; | |
127 size_t temp_file_write_size_conf; | |
128 | |
509 | 129 ngx_uint_t next_upstream; |
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130 ngx_uint_t store_access; |
479 | 131 |
509 | 132 ngx_bufs_t bufs; |
479 | 133 |
581 | 134 ngx_flag_t buffering; |
509 | 135 ngx_flag_t pass_request_headers; |
136 ngx_flag_t pass_request_body; | |
137 | |
629 | 138 ngx_flag_t ignore_client_abort; |
657 | 139 ngx_flag_t intercept_errors; |
509 | 140 ngx_flag_t cyclic_temp_file; |
479 | 141 |
649 | 142 ngx_path_t *temp_path; |
479 | 143 |
649 | 144 ngx_hash_t hide_headers_hash; |
145 ngx_array_t *hide_headers; | |
146 ngx_array_t *pass_headers; | |
509 | 147 |
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148 ngx_array_t *store_lengths; |
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149 ngx_array_t *store_values; |
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150 |
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151 signed store:2; |
675 | 152 unsigned intercept_404:1; |
649 | 153 unsigned change_buffering:1; |
581 | 154 |
577 | 155 #if (NGX_HTTP_SSL) |
156 ngx_ssl_t *ssl; | |
2184 | 157 ngx_flag_t ssl_session_reuse; |
577 | 158 #endif |
159 | |
479 | 160 } ngx_http_upstream_conf_t; |
161 | |
162 | |
509 | 163 typedef struct { |
164 ngx_str_t name; | |
165 ngx_http_header_handler_pt handler; | |
166 ngx_uint_t offset; | |
167 ngx_http_header_handler_pt copy_handler; | |
168 ngx_uint_t conf; | |
515 | 169 ngx_uint_t redirect; /* unsigned redirect:1; */ |
509 | 170 } ngx_http_upstream_header_t; |
171 | |
172 | |
173 typedef struct { | |
174 ngx_list_t headers; | |
175 | |
529 | 176 ngx_uint_t status_n; |
177 ngx_str_t status_line; | |
178 | |
509 | 179 ngx_table_elt_t *status; |
180 ngx_table_elt_t *date; | |
181 ngx_table_elt_t *server; | |
182 ngx_table_elt_t *connection; | |
183 | |
184 ngx_table_elt_t *expires; | |
185 ngx_table_elt_t *etag; | |
186 ngx_table_elt_t *x_accel_expires; | |
515 | 187 ngx_table_elt_t *x_accel_redirect; |
527 | 188 ngx_table_elt_t *x_accel_limit_rate; |
509 | 189 |
190 ngx_table_elt_t *content_type; | |
191 ngx_table_elt_t *content_length; | |
192 | |
193 ngx_table_elt_t *last_modified; | |
194 ngx_table_elt_t *location; | |
195 ngx_table_elt_t *accept_ranges; | |
529 | 196 ngx_table_elt_t *www_authenticate; |
509 | 197 |
198 #if (NGX_HTTP_GZIP) | |
199 ngx_table_elt_t *content_encoding; | |
200 #endif | |
201 | |
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202 off_t content_length_n; |
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203 |
509 | 204 ngx_array_t cache_control; |
205 } ngx_http_upstream_headers_in_t; | |
206 | |
479 | 207 |
1658 | 208 typedef struct { |
209 ngx_str_t host; | |
210 in_port_t port; | |
2285 | 211 ngx_uint_t no_port; /* unsigned no_port:1 */ |
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212 |
1658 | 213 ngx_uint_t naddrs; |
214 in_addr_t *addrs; | |
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215 |
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216 struct sockaddr *sockaddr; |
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217 socklen_t socklen; |
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218 |
1658 | 219 ngx_resolver_ctx_t *ctx; |
220 } ngx_http_upstream_resolved_t; | |
221 | |
222 | |
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223 typedef void (*ngx_http_upstream_handler_pt)(ngx_http_request_t *r, |
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224 ngx_http_upstream_t *u); |
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225 |
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226 |
479 | 227 struct ngx_http_upstream_s { |
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228 ngx_http_upstream_handler_pt read_event_handler; |
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229 ngx_http_upstream_handler_pt write_event_handler; |
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230 |
509 | 231 ngx_peer_connection_t peer; |
479 | 232 |
581 | 233 ngx_event_pipe_t *pipe; |
479 | 234 |
509 | 235 ngx_chain_t *request_bufs; |
479 | 236 |
509 | 237 ngx_output_chain_ctx_t output; |
238 ngx_chain_writer_ctx_t writer; | |
479 | 239 |
509 | 240 ngx_http_upstream_conf_t *conf; |
479 | 241 |
509 | 242 ngx_http_upstream_headers_in_t headers_in; |
243 | |
1658 | 244 ngx_http_upstream_resolved_t *resolved; |
245 | |
581 | 246 ngx_buf_t buffer; |
247 size_t length; | |
248 | |
249 ngx_chain_t *out_bufs; | |
250 ngx_chain_t *busy_bufs; | |
251 ngx_chain_t *free_bufs; | |
252 | |
253 ngx_int_t (*input_filter_init)(void *data); | |
254 ngx_int_t (*input_filter)(void *data, ssize_t bytes); | |
255 void *input_filter_ctx; | |
479 | 256 |
509 | 257 ngx_int_t (*create_request)(ngx_http_request_t *r); |
258 ngx_int_t (*reinit_request)(ngx_http_request_t *r); | |
259 ngx_int_t (*process_header)(ngx_http_request_t *r); | |
260 void (*abort_request)(ngx_http_request_t *r); | |
261 void (*finalize_request)(ngx_http_request_t *r, | |
262 ngx_int_t rc); | |
263 ngx_int_t (*rewrite_redirect)(ngx_http_request_t *r, | |
264 ngx_table_elt_t *h, size_t prefix); | |
479 | 265 |
527 | 266 ngx_msec_t timeout; |
267 | |
509 | 268 ngx_http_upstream_state_t *state; |
479 | 269 |
1658 | 270 ngx_str_t method; |
271 ngx_str_t schema; | |
555 | 272 ngx_str_t uri; |
273 | |
569 | 274 ngx_http_cleanup_pt *cleanup; |
275 | |
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276 unsigned store:1; |
1565 | 277 unsigned cacheable:1; |
509 | 278 unsigned accel:1; |
1658 | 279 unsigned ssl:1; |
479 | 280 |
649 | 281 unsigned buffering:1; |
282 | |
509 | 283 unsigned request_sent:1; |
284 unsigned header_sent:1; | |
479 | 285 }; |
286 | |
287 | |
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288 typedef struct { |
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289 ngx_uint_t status; |
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290 ngx_uint_t mask; |
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291 } ngx_http_upstream_next_t; |
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292 |
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293 |
1162 | 294 ngx_int_t ngx_http_upstream_header_variable(ngx_http_request_t *r, |
295 ngx_http_variable_value_t *v, uintptr_t data); | |
296 | |
479 | 297 void ngx_http_upstream_init(ngx_http_request_t *r); |
651 | 298 ngx_http_upstream_srv_conf_t *ngx_http_upstream_add(ngx_conf_t *cf, |
884 | 299 ngx_url_t *u, ngx_uint_t flags); |
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300 ngx_int_t ngx_http_upstream_hide_headers_hash(ngx_conf_t *cf, |
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301 ngx_http_upstream_conf_t *conf, ngx_http_upstream_conf_t *prev, |
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302 ngx_str_t *default_hide_headers, ngx_hash_init_t *hash); |
884 | 303 |
304 | |
305 #define ngx_http_conf_upstream_srv_conf(uscf, module) \ | |
306 uscf->srv_conf[module.ctx_index] | |
509 | 307 |
479 | 308 |
509 | 309 extern ngx_module_t ngx_http_upstream_module; |
479 | 310 |
311 | |
312 #endif /* _NGX_HTTP_UPSTREAM_H_INCLUDED_ */ |