Mercurial > hg > nginx
annotate src/http/ngx_http_upstream.h @ 1378:0be898896d1a
backup upstream servers
| author | Igor Sysoev <igor@sysoev.ru> |
|---|---|
| date | Thu, 09 Aug 2007 13:54:33 +0000 |
| parents | 5383f5232364 |
| children | 56f1ea5baabb |
| 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 | |
| 1378 | 27 #define NGX_HTTP_UPSTREAM_FT_NOLIVE 0x40000000 |
| 665 | 28 #define NGX_HTTP_UPSTREAM_FT_OFF 0x80000000 |
| 479 | 29 |
| 30 | |
| 31 #define NGX_HTTP_UPSTREAM_INVALID_HEADER 40 | |
| 32 | |
| 33 | |
| 34 typedef struct { | |
| 563 | 35 ngx_msec_t bl_time; |
| 509 | 36 ngx_uint_t bl_state; |
| 479 | 37 |
| 509 | 38 ngx_uint_t status; |
|
889
a9a7e4b1a72b
the previous fix does not actually fix overflow
Igor Sysoev <igor@sysoev.ru>
parents:
884
diff
changeset
|
39 time_t response_sec; |
|
a9a7e4b1a72b
the previous fix does not actually fix overflow
Igor Sysoev <igor@sysoev.ru>
parents:
884
diff
changeset
|
40 ngx_uint_t response_msec; |
| 563 | 41 |
| 509 | 42 ngx_str_t *peer; |
| 479 | 43 } ngx_http_upstream_state_t; |
| 44 | |
| 45 | |
| 46 typedef struct { | |
| 649 | 47 ngx_hash_t headers_in_hash; |
| 651 | 48 ngx_array_t upstreams; |
| 884 | 49 /* ngx_http_upstream_srv_conf_t */ |
| 509 | 50 } ngx_http_upstream_main_conf_t; |
| 51 | |
| 884 | 52 typedef struct ngx_http_upstream_srv_conf_s ngx_http_upstream_srv_conf_t; |
| 53 | |
| 54 typedef ngx_int_t (*ngx_http_upstream_init_pt)(ngx_conf_t *cf, | |
| 55 ngx_http_upstream_srv_conf_t *us); | |
| 56 typedef ngx_int_t (*ngx_http_upstream_init_peer_pt)(ngx_http_request_t *r, | |
| 57 ngx_http_upstream_srv_conf_t *us); | |
| 58 | |
| 59 | |
| 60 typedef struct { | |
| 61 ngx_http_upstream_init_pt init_upstream; | |
| 62 ngx_http_upstream_init_peer_pt init; | |
| 63 void *data; | |
| 64 } ngx_http_upstream_peer_t; | |
| 65 | |
| 509 | 66 |
| 67 typedef struct { | |
| 884 | 68 ngx_peer_addr_t *addrs; |
| 69 ngx_uint_t naddrs; | |
| 70 ngx_uint_t weight; | |
| 71 ngx_uint_t max_fails; | |
| 72 time_t fail_timeout; | |
| 73 | |
| 74 unsigned down:1; | |
| 75 unsigned backup:1; | |
| 76 } ngx_http_upstream_server_t; | |
| 77 | |
| 651 | 78 |
| 884 | 79 #define NGX_HTTP_UPSTREAM_CREATE 0x0001 |
| 80 #define NGX_HTTP_UPSTREAM_WEIGHT 0x0002 | |
| 81 #define NGX_HTTP_UPSTREAM_MAX_FAILS 0x0004 | |
| 82 #define NGX_HTTP_UPSTREAM_FAIL_TIMEOUT 0x0008 | |
| 83 #define NGX_HTTP_UPSTREAM_DOWN 0x0010 | |
| 84 #define NGX_HTTP_UPSTREAM_BACKUP 0x0020 | |
| 85 | |
| 651 | 86 |
| 884 | 87 struct ngx_http_upstream_srv_conf_s { |
| 88 ngx_http_upstream_peer_t peer; | |
| 89 void **srv_conf; | |
| 90 | |
| 91 ngx_array_t *servers; /* ngx_http_upstream_server_t */ | |
| 92 | |
| 93 ngx_uint_t flags; | |
| 651 | 94 ngx_str_t host; |
| 95 ngx_str_t file_name; | |
| 96 ngx_uint_t line; | |
| 97 in_port_t port; | |
| 906 | 98 in_port_t default_port; |
| 884 | 99 }; |
| 651 | 100 |
| 101 | |
| 102 typedef struct { | |
| 884 | 103 ngx_http_upstream_srv_conf_t *upstream; |
| 104 | |
| 509 | 105 ngx_msec_t connect_timeout; |
| 106 ngx_msec_t send_timeout; | |
| 107 ngx_msec_t read_timeout; | |
| 527 | 108 ngx_msec_t timeout; |
| 479 | 109 |
| 509 | 110 size_t send_lowat; |
| 581 | 111 size_t buffer_size; |
| 529 | 112 |
| 509 | 113 size_t busy_buffers_size; |
| 114 size_t max_temp_file_size; | |
| 115 size_t temp_file_write_size; | |
| 116 | |
| 529 | 117 size_t busy_buffers_size_conf; |
| 118 size_t max_temp_file_size_conf; | |
| 119 size_t temp_file_write_size_conf; | |
| 120 | |
| 509 | 121 ngx_uint_t next_upstream; |
|
1295
5383f5232364
proxy_store and fastcgi_store were changed,
Igor Sysoev <igor@sysoev.ru>
parents:
1291
diff
changeset
|
122 ngx_uint_t store_access; |
| 479 | 123 |
| 509 | 124 ngx_bufs_t bufs; |
| 479 | 125 |
| 581 | 126 ngx_flag_t buffering; |
| 509 | 127 ngx_flag_t pass_request_headers; |
| 128 ngx_flag_t pass_request_body; | |
| 129 | |
| 629 | 130 ngx_flag_t ignore_client_abort; |
| 657 | 131 ngx_flag_t intercept_errors; |
| 509 | 132 ngx_flag_t cyclic_temp_file; |
| 479 | 133 |
| 649 | 134 ngx_path_t *temp_path; |
| 479 | 135 |
| 649 | 136 ngx_hash_t hide_headers_hash; |
| 137 ngx_array_t *hide_headers; | |
| 138 ngx_array_t *pass_headers; | |
| 509 | 139 |
| 140 ngx_str_t schema; | |
| 141 ngx_str_t uri; | |
| 573 | 142 ngx_str_t location; |
| 509 | 143 ngx_str_t url; /* used in proxy_rewrite_location */ |
| 577 | 144 |
|
1295
5383f5232364
proxy_store and fastcgi_store were changed,
Igor Sysoev <igor@sysoev.ru>
parents:
1291
diff
changeset
|
145 ngx_array_t *store_lengths; |
|
5383f5232364
proxy_store and fastcgi_store were changed,
Igor Sysoev <igor@sysoev.ru>
parents:
1291
diff
changeset
|
146 ngx_array_t *store_values; |
|
5383f5232364
proxy_store and fastcgi_store were changed,
Igor Sysoev <igor@sysoev.ru>
parents:
1291
diff
changeset
|
147 |
|
5383f5232364
proxy_store and fastcgi_store were changed,
Igor Sysoev <igor@sysoev.ru>
parents:
1291
diff
changeset
|
148 signed store:2; |
| 675 | 149 unsigned intercept_404:1; |
| 649 | 150 unsigned change_buffering:1; |
| 581 | 151 |
| 577 | 152 #if (NGX_HTTP_SSL) |
| 153 ngx_ssl_t *ssl; | |
| 154 #endif | |
| 155 | |
| 479 | 156 } ngx_http_upstream_conf_t; |
| 157 | |
| 158 | |
| 509 | 159 typedef struct { |
| 160 ngx_str_t name; | |
| 161 ngx_http_header_handler_pt handler; | |
| 162 ngx_uint_t offset; | |
| 163 ngx_http_header_handler_pt copy_handler; | |
| 164 ngx_uint_t conf; | |
| 515 | 165 ngx_uint_t redirect; /* unsigned redirect:1; */ |
| 509 | 166 } ngx_http_upstream_header_t; |
| 167 | |
| 168 | |
| 169 typedef struct { | |
| 170 ngx_list_t headers; | |
| 171 | |
| 529 | 172 ngx_uint_t status_n; |
| 173 ngx_str_t status_line; | |
| 174 | |
| 509 | 175 ngx_table_elt_t *status; |
| 176 ngx_table_elt_t *date; | |
| 177 ngx_table_elt_t *server; | |
| 178 ngx_table_elt_t *connection; | |
| 179 | |
| 180 ngx_table_elt_t *expires; | |
| 181 ngx_table_elt_t *etag; | |
| 182 ngx_table_elt_t *x_accel_expires; | |
| 515 | 183 ngx_table_elt_t *x_accel_redirect; |
| 527 | 184 ngx_table_elt_t *x_accel_limit_rate; |
| 509 | 185 |
| 186 ngx_table_elt_t *content_type; | |
| 187 ngx_table_elt_t *content_length; | |
| 188 | |
| 189 ngx_table_elt_t *last_modified; | |
| 190 ngx_table_elt_t *location; | |
| 191 ngx_table_elt_t *accept_ranges; | |
| 529 | 192 ngx_table_elt_t *www_authenticate; |
| 509 | 193 |
| 194 #if (NGX_HTTP_GZIP) | |
| 195 ngx_table_elt_t *content_encoding; | |
| 196 #endif | |
| 197 | |
| 198 ngx_array_t cache_control; | |
| 199 } ngx_http_upstream_headers_in_t; | |
| 200 | |
| 479 | 201 |
| 202 struct ngx_http_upstream_s { | |
| 509 | 203 ngx_peer_connection_t peer; |
| 479 | 204 |
| 581 | 205 ngx_event_pipe_t *pipe; |
| 479 | 206 |
| 509 | 207 ngx_chain_t *request_bufs; |
| 479 | 208 |
| 509 | 209 ngx_output_chain_ctx_t output; |
| 210 ngx_chain_writer_ctx_t writer; | |
| 479 | 211 |
| 509 | 212 ngx_http_upstream_conf_t *conf; |
| 479 | 213 |
| 509 | 214 ngx_http_upstream_headers_in_t headers_in; |
| 215 | |
| 581 | 216 ngx_buf_t buffer; |
| 217 size_t length; | |
| 218 | |
| 219 ngx_chain_t *out_bufs; | |
| 220 ngx_chain_t *busy_bufs; | |
| 221 ngx_chain_t *free_bufs; | |
| 222 | |
| 223 ngx_int_t (*input_filter_init)(void *data); | |
| 224 ngx_int_t (*input_filter)(void *data, ssize_t bytes); | |
| 225 void *input_filter_ctx; | |
| 479 | 226 |
| 509 | 227 ngx_int_t (*create_request)(ngx_http_request_t *r); |
| 228 ngx_int_t (*reinit_request)(ngx_http_request_t *r); | |
| 229 ngx_int_t (*process_header)(ngx_http_request_t *r); | |
| 230 void (*abort_request)(ngx_http_request_t *r); | |
| 231 void (*finalize_request)(ngx_http_request_t *r, | |
| 232 ngx_int_t rc); | |
| 233 ngx_int_t (*rewrite_redirect)(ngx_http_request_t *r, | |
| 234 ngx_table_elt_t *h, size_t prefix); | |
| 479 | 235 |
| 527 | 236 ngx_msec_t timeout; |
| 237 | |
| 561 | 238 ngx_str_t method; |
| 479 | 239 |
| 509 | 240 ngx_http_upstream_state_t *state; |
| 479 | 241 |
| 555 | 242 ngx_str_t uri; |
| 243 | |
| 569 | 244 ngx_http_cleanup_pt *cleanup; |
| 245 | |
|
1291
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1168
diff
changeset
|
246 unsigned store:1; |
| 509 | 247 unsigned cachable:1; |
| 248 unsigned accel:1; | |
| 479 | 249 |
| 649 | 250 unsigned buffering:1; |
| 251 | |
| 509 | 252 unsigned request_sent:1; |
| 253 unsigned header_sent:1; | |
| 479 | 254 }; |
| 255 | |
| 256 | |
| 1162 | 257 ngx_int_t ngx_http_upstream_header_variable(ngx_http_request_t *r, |
| 258 ngx_http_variable_value_t *v, uintptr_t data); | |
| 259 | |
| 479 | 260 void ngx_http_upstream_init(ngx_http_request_t *r); |
| 651 | 261 ngx_http_upstream_srv_conf_t *ngx_http_upstream_add(ngx_conf_t *cf, |
| 884 | 262 ngx_url_t *u, ngx_uint_t flags); |
| 263 | |
| 264 | |
| 265 #define ngx_http_conf_upstream_srv_conf(uscf, module) \ | |
| 266 uscf->srv_conf[module.ctx_index] | |
| 509 | 267 |
| 479 | 268 |
| 509 | 269 extern ngx_module_t ngx_http_upstream_module; |
| 479 | 270 |
| 271 | |
| 272 #endif /* _NGX_HTTP_UPSTREAM_H_INCLUDED_ */ |