Mercurial > hg > nginx
annotate src/http/ngx_http_upstream.h @ 6883:8b822ff79916
Upstream: removed unused bl_time and bl_state fields.
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Thu, 26 Jan 2017 16:16:48 +0300 |
parents | a1ec33df7ce0 |
children | d2b2ff157da5 |
rev | line source |
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479 | 1 |
2 /* | |
3 * Copyright (C) Igor Sysoev | |
4412 | 4 * Copyright (C) Nginx, Inc. |
479 | 5 */ |
6 | |
7 | |
8 #ifndef _NGX_HTTP_UPSTREAM_H_INCLUDED_ | |
9 #define _NGX_HTTP_UPSTREAM_H_INCLUDED_ | |
10 | |
11 | |
12 #include <ngx_config.h> | |
13 #include <ngx_core.h> | |
14 #include <ngx_event.h> | |
15 #include <ngx_event_connect.h> | |
16 #include <ngx_event_pipe.h> | |
17 #include <ngx_http.h> | |
18 | |
19 | |
665 | 20 #define NGX_HTTP_UPSTREAM_FT_ERROR 0x00000002 |
21 #define NGX_HTTP_UPSTREAM_FT_TIMEOUT 0x00000004 | |
22 #define NGX_HTTP_UPSTREAM_FT_INVALID_HEADER 0x00000008 | |
23 #define NGX_HTTP_UPSTREAM_FT_HTTP_500 0x00000010 | |
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24 #define NGX_HTTP_UPSTREAM_FT_HTTP_502 0x00000020 |
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25 #define NGX_HTTP_UPSTREAM_FT_HTTP_503 0x00000040 |
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26 #define NGX_HTTP_UPSTREAM_FT_HTTP_504 0x00000080 |
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27 #define NGX_HTTP_UPSTREAM_FT_HTTP_403 0x00000100 |
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28 #define NGX_HTTP_UPSTREAM_FT_HTTP_404 0x00000200 |
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29 #define NGX_HTTP_UPSTREAM_FT_UPDATING 0x00000400 |
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30 #define NGX_HTTP_UPSTREAM_FT_BUSY_LOCK 0x00000800 |
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31 #define NGX_HTTP_UPSTREAM_FT_MAX_WAITING 0x00001000 |
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32 #define NGX_HTTP_UPSTREAM_FT_NON_IDEMPOTENT 0x00002000 |
1378 | 33 #define NGX_HTTP_UPSTREAM_FT_NOLIVE 0x40000000 |
665 | 34 #define NGX_HTTP_UPSTREAM_FT_OFF 0x80000000 |
479 | 35 |
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36 #define NGX_HTTP_UPSTREAM_FT_STATUS (NGX_HTTP_UPSTREAM_FT_HTTP_500 \ |
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37 |NGX_HTTP_UPSTREAM_FT_HTTP_502 \ |
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38 |NGX_HTTP_UPSTREAM_FT_HTTP_503 \ |
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39 |NGX_HTTP_UPSTREAM_FT_HTTP_504 \ |
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40 |NGX_HTTP_UPSTREAM_FT_HTTP_403 \ |
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41 |NGX_HTTP_UPSTREAM_FT_HTTP_404) |
479 | 42 |
43 #define NGX_HTTP_UPSTREAM_INVALID_HEADER 40 | |
44 | |
45 | |
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46 #define NGX_HTTP_UPSTREAM_IGN_XA_REDIRECT 0x00000002 |
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47 #define NGX_HTTP_UPSTREAM_IGN_XA_EXPIRES 0x00000004 |
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48 #define NGX_HTTP_UPSTREAM_IGN_EXPIRES 0x00000008 |
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49 #define NGX_HTTP_UPSTREAM_IGN_CACHE_CONTROL 0x00000010 |
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50 #define NGX_HTTP_UPSTREAM_IGN_SET_COOKIE 0x00000020 |
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51 #define NGX_HTTP_UPSTREAM_IGN_XA_LIMIT_RATE 0x00000040 |
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52 #define NGX_HTTP_UPSTREAM_IGN_XA_BUFFERING 0x00000080 |
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53 #define NGX_HTTP_UPSTREAM_IGN_XA_CHARSET 0x00000100 |
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54 #define NGX_HTTP_UPSTREAM_IGN_VARY 0x00000200 |
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55 |
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56 |
479 | 57 typedef struct { |
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58 ngx_uint_t status; |
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59 ngx_msec_t response_time; |
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60 ngx_msec_t connect_time; |
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61 ngx_msec_t header_time; |
3795 | 62 off_t response_length; |
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63 off_t bytes_received; |
563 | 64 |
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65 ngx_str_t *peer; |
479 | 66 } ngx_http_upstream_state_t; |
67 | |
68 | |
69 typedef struct { | |
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70 ngx_hash_t headers_in_hash; |
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71 ngx_array_t upstreams; |
884 | 72 /* ngx_http_upstream_srv_conf_t */ |
509 | 73 } ngx_http_upstream_main_conf_t; |
74 | |
884 | 75 typedef struct ngx_http_upstream_srv_conf_s ngx_http_upstream_srv_conf_t; |
76 | |
77 typedef ngx_int_t (*ngx_http_upstream_init_pt)(ngx_conf_t *cf, | |
78 ngx_http_upstream_srv_conf_t *us); | |
79 typedef ngx_int_t (*ngx_http_upstream_init_peer_pt)(ngx_http_request_t *r, | |
80 ngx_http_upstream_srv_conf_t *us); | |
81 | |
82 | |
83 typedef struct { | |
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84 ngx_http_upstream_init_pt init_upstream; |
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85 ngx_http_upstream_init_peer_pt init; |
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86 void *data; |
884 | 87 } ngx_http_upstream_peer_t; |
88 | |
509 | 89 |
90 typedef struct { | |
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91 ngx_str_t name; |
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92 ngx_addr_t *addrs; |
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93 ngx_uint_t naddrs; |
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94 ngx_uint_t weight; |
6705 | 95 ngx_uint_t max_conns; |
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96 ngx_uint_t max_fails; |
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97 time_t fail_timeout; |
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98 ngx_msec_t slow_start; |
884 | 99 |
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100 unsigned down:1; |
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101 unsigned backup:1; |
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102 |
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103 NGX_COMPAT_BEGIN(6) |
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104 NGX_COMPAT_END |
884 | 105 } ngx_http_upstream_server_t; |
106 | |
651 | 107 |
884 | 108 #define NGX_HTTP_UPSTREAM_CREATE 0x0001 |
109 #define NGX_HTTP_UPSTREAM_WEIGHT 0x0002 | |
110 #define NGX_HTTP_UPSTREAM_MAX_FAILS 0x0004 | |
111 #define NGX_HTTP_UPSTREAM_FAIL_TIMEOUT 0x0008 | |
112 #define NGX_HTTP_UPSTREAM_DOWN 0x0010 | |
113 #define NGX_HTTP_UPSTREAM_BACKUP 0x0020 | |
6705 | 114 #define NGX_HTTP_UPSTREAM_MAX_CONNS 0x0100 |
884 | 115 |
651 | 116 |
884 | 117 struct ngx_http_upstream_srv_conf_s { |
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118 ngx_http_upstream_peer_t peer; |
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119 void **srv_conf; |
884 | 120 |
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121 ngx_array_t *servers; /* ngx_http_upstream_server_t */ |
884 | 122 |
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123 ngx_uint_t flags; |
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124 ngx_str_t host; |
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125 u_char *file_name; |
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126 ngx_uint_t line; |
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127 in_port_t port; |
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128 ngx_uint_t no_port; /* unsigned no_port:1 */ |
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129 |
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130 #if (NGX_HTTP_UPSTREAM_ZONE) |
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131 ngx_shm_zone_t *shm_zone; |
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132 #endif |
884 | 133 }; |
651 | 134 |
135 | |
136 typedef struct { | |
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137 ngx_addr_t *addr; |
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138 ngx_http_complex_value_t *value; |
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139 #if (NGX_HAVE_TRANSPARENT_PROXY) |
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140 ngx_uint_t transparent; /* unsigned transparent:1; */ |
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141 #endif |
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142 } ngx_http_upstream_local_t; |
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143 |
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144 |
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145 typedef struct { |
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146 ngx_http_upstream_srv_conf_t *upstream; |
884 | 147 |
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148 ngx_msec_t connect_timeout; |
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149 ngx_msec_t send_timeout; |
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150 ngx_msec_t read_timeout; |
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151 ngx_msec_t next_upstream_timeout; |
479 | 152 |
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153 size_t send_lowat; |
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154 size_t buffer_size; |
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155 size_t limit_rate; |
529 | 156 |
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157 size_t busy_buffers_size; |
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158 size_t max_temp_file_size; |
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159 size_t temp_file_write_size; |
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160 |
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161 size_t busy_buffers_size_conf; |
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162 size_t max_temp_file_size_conf; |
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163 size_t temp_file_write_size_conf; |
509 | 164 |
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165 ngx_bufs_t bufs; |
529 | 166 |
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167 ngx_uint_t ignore_headers; |
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168 ngx_uint_t next_upstream; |
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169 ngx_uint_t store_access; |
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170 ngx_uint_t next_upstream_tries; |
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171 ngx_flag_t buffering; |
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172 ngx_flag_t request_buffering; |
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173 ngx_flag_t pass_request_headers; |
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174 ngx_flag_t pass_request_body; |
479 | 175 |
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176 ngx_flag_t ignore_client_abort; |
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177 ngx_flag_t intercept_errors; |
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178 ngx_flag_t cyclic_temp_file; |
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179 ngx_flag_t force_ranges; |
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180 |
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181 ngx_path_t *temp_path; |
479 | 182 |
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183 ngx_hash_t hide_headers_hash; |
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184 ngx_array_t *hide_headers; |
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185 ngx_array_t *pass_headers; |
509 | 186 |
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187 ngx_http_upstream_local_t *local; |
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188 |
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189 #if (NGX_HTTP_CACHE) |
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190 ngx_shm_zone_t *cache_zone; |
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191 ngx_http_complex_value_t *cache_value; |
479 | 192 |
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193 ngx_uint_t cache_min_uses; |
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194 ngx_uint_t cache_use_stale; |
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195 ngx_uint_t cache_methods; |
479 | 196 |
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197 off_t cache_max_range_offset; |
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198 |
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199 ngx_flag_t cache_lock; |
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200 ngx_msec_t cache_lock_timeout; |
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201 ngx_msec_t cache_lock_age; |
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202 |
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203 ngx_flag_t cache_revalidate; |
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204 ngx_flag_t cache_convert_head; |
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205 |
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206 ngx_array_t *cache_valid; |
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207 ngx_array_t *cache_bypass; |
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208 ngx_array_t *cache_purge; |
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209 ngx_array_t *no_cache; |
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210 #endif |
509 | 211 |
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212 ngx_array_t *store_lengths; |
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213 ngx_array_t *store_values; |
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214 |
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215 #if (NGX_HTTP_CACHE) |
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216 signed cache:2; |
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217 #endif |
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218 signed store:2; |
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219 unsigned intercept_404:1; |
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220 unsigned change_buffering:1; |
581 | 221 |
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222 #if (NGX_HTTP_SSL || NGX_COMPAT) |
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223 ngx_ssl_t *ssl; |
2754 | 224 ngx_flag_t ssl_session_reuse; |
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225 |
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226 ngx_http_complex_value_t *ssl_name; |
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227 ngx_flag_t ssl_server_name; |
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228 ngx_flag_t ssl_verify; |
577 | 229 #endif |
230 | |
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231 ngx_str_t module; |
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232 |
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233 NGX_COMPAT_BEGIN(2) |
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234 NGX_COMPAT_END |
479 | 235 } ngx_http_upstream_conf_t; |
236 | |
237 | |
509 | 238 typedef struct { |
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239 ngx_str_t name; |
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240 ngx_http_header_handler_pt handler; |
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241 ngx_uint_t offset; |
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242 ngx_http_header_handler_pt copy_handler; |
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243 ngx_uint_t conf; |
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244 ngx_uint_t redirect; /* unsigned redirect:1; */ |
509 | 245 } ngx_http_upstream_header_t; |
246 | |
247 | |
248 typedef struct { | |
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249 ngx_list_t headers; |
509 | 250 |
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251 ngx_uint_t status_n; |
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252 ngx_str_t status_line; |
529 | 253 |
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254 ngx_table_elt_t *status; |
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255 ngx_table_elt_t *date; |
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256 ngx_table_elt_t *server; |
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257 ngx_table_elt_t *connection; |
509 | 258 |
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259 ngx_table_elt_t *expires; |
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260 ngx_table_elt_t *etag; |
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261 ngx_table_elt_t *x_accel_expires; |
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262 ngx_table_elt_t *x_accel_redirect; |
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263 ngx_table_elt_t *x_accel_limit_rate; |
509 | 264 |
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265 ngx_table_elt_t *content_type; |
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266 ngx_table_elt_t *content_length; |
509 | 267 |
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268 ngx_table_elt_t *last_modified; |
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269 ngx_table_elt_t *location; |
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270 ngx_table_elt_t *accept_ranges; |
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271 ngx_table_elt_t *www_authenticate; |
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272 ngx_table_elt_t *transfer_encoding; |
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Cache: disable caching of responses with Vary (ticket #118).
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273 ngx_table_elt_t *vary; |
509 | 274 |
275 #if (NGX_HTTP_GZIP) | |
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276 ngx_table_elt_t *content_encoding; |
509 | 277 #endif |
278 | |
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279 ngx_array_t cache_control; |
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Upstream: added the "$upstream_cookie_<name>" variables.
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280 ngx_array_t cookies; |
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281 |
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282 off_t content_length_n; |
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283 time_t last_modified_time; |
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284 |
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285 unsigned connection_close:1; |
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286 unsigned chunked:1; |
509 | 287 } ngx_http_upstream_headers_in_t; |
288 | |
479 | 289 |
1658 | 290 typedef struct { |
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291 ngx_str_t host; |
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292 in_port_t port; |
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293 ngx_uint_t no_port; /* unsigned no_port:1 */ |
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294 |
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295 ngx_uint_t naddrs; |
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296 ngx_resolver_addr_t *addrs; |
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297 |
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298 struct sockaddr *sockaddr; |
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299 socklen_t socklen; |
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300 ngx_str_t name; |
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301 |
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302 ngx_resolver_ctx_t *ctx; |
1658 | 303 } ngx_http_upstream_resolved_t; |
304 | |
305 | |
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306 typedef void (*ngx_http_upstream_handler_pt)(ngx_http_request_t *r, |
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307 ngx_http_upstream_t *u); |
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308 |
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309 |
479 | 310 struct ngx_http_upstream_s { |
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311 ngx_http_upstream_handler_pt read_event_handler; |
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312 ngx_http_upstream_handler_pt write_event_handler; |
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313 |
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314 ngx_peer_connection_t peer; |
479 | 315 |
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316 ngx_event_pipe_t *pipe; |
479 | 317 |
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318 ngx_chain_t *request_bufs; |
479 | 319 |
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320 ngx_output_chain_ctx_t output; |
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321 ngx_chain_writer_ctx_t writer; |
479 | 322 |
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323 ngx_http_upstream_conf_t *conf; |
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324 ngx_http_upstream_srv_conf_t *upstream; |
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325 #if (NGX_HTTP_CACHE) |
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326 ngx_array_t *caches; |
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327 #endif |
479 | 328 |
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329 ngx_http_upstream_headers_in_t headers_in; |
509 | 330 |
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331 ngx_http_upstream_resolved_t *resolved; |
1658 | 332 |
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333 ngx_buf_t from_client; |
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334 |
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335 ngx_buf_t buffer; |
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336 off_t length; |
581 | 337 |
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338 ngx_chain_t *out_bufs; |
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339 ngx_chain_t *busy_bufs; |
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340 ngx_chain_t *free_bufs; |
581 | 341 |
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342 ngx_int_t (*input_filter_init)(void *data); |
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343 ngx_int_t (*input_filter)(void *data, ssize_t bytes); |
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344 void *input_filter_ctx; |
479 | 345 |
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346 #if (NGX_HTTP_CACHE) |
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347 ngx_int_t (*create_key)(ngx_http_request_t *r); |
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348 #endif |
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349 ngx_int_t (*create_request)(ngx_http_request_t *r); |
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350 ngx_int_t (*reinit_request)(ngx_http_request_t *r); |
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351 ngx_int_t (*process_header)(ngx_http_request_t *r); |
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352 void (*abort_request)(ngx_http_request_t *r); |
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353 void (*finalize_request)(ngx_http_request_t *r, |
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354 ngx_int_t rc); |
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355 ngx_int_t (*rewrite_redirect)(ngx_http_request_t *r, |
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356 ngx_table_elt_t *h, size_t prefix); |
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357 ngx_int_t (*rewrite_cookie)(ngx_http_request_t *r, |
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358 ngx_table_elt_t *h); |
479 | 359 |
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360 ngx_msec_t timeout; |
527 | 361 |
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362 ngx_http_upstream_state_t *state; |
479 | 363 |
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364 ngx_str_t method; |
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365 ngx_str_t schema; |
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366 ngx_str_t uri; |
555 | 367 |
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368 #if (NGX_HTTP_SSL || NGX_COMPAT) |
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369 ngx_str_t ssl_name; |
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370 #endif |
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371 |
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372 ngx_http_cleanup_pt *cleanup; |
569 | 373 |
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374 unsigned store:1; |
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375 unsigned cacheable:1; |
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376 unsigned accel:1; |
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377 unsigned ssl:1; |
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378 #if (NGX_HTTP_CACHE) |
2952 | 379 unsigned cache_status:3; |
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380 #endif |
479 | 381 |
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382 unsigned buffering:1; |
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383 unsigned keepalive:1; |
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384 unsigned upgrade:1; |
649 | 385 |
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386 unsigned request_sent:1; |
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387 unsigned request_body_sent:1; |
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388 unsigned header_sent:1; |
479 | 389 }; |
390 | |
391 | |
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392 typedef struct { |
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393 ngx_uint_t status; |
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394 ngx_uint_t mask; |
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395 } ngx_http_upstream_next_t; |
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396 |
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397 |
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398 typedef struct { |
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399 ngx_str_t key; |
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400 ngx_str_t value; |
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401 ngx_uint_t skip_empty; |
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402 } ngx_http_upstream_param_t; |
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403 |
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404 |
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405 ngx_int_t ngx_http_upstream_cookie_variable(ngx_http_request_t *r, |
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406 ngx_http_variable_value_t *v, uintptr_t data); |
1162 | 407 ngx_int_t ngx_http_upstream_header_variable(ngx_http_request_t *r, |
408 ngx_http_variable_value_t *v, uintptr_t data); | |
409 | |
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410 ngx_int_t ngx_http_upstream_create(ngx_http_request_t *r); |
479 | 411 void ngx_http_upstream_init(ngx_http_request_t *r); |
651 | 412 ngx_http_upstream_srv_conf_t *ngx_http_upstream_add(ngx_conf_t *cf, |
884 | 413 ngx_url_t *u, ngx_uint_t flags); |
3399 | 414 char *ngx_http_upstream_bind_set_slot(ngx_conf_t *cf, ngx_command_t *cmd, |
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415 void *conf); |
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416 char *ngx_http_upstream_param_set_slot(ngx_conf_t *cf, ngx_command_t *cmd, |
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417 void *conf); |
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418 ngx_int_t ngx_http_upstream_hide_headers_hash(ngx_conf_t *cf, |
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419 ngx_http_upstream_conf_t *conf, ngx_http_upstream_conf_t *prev, |
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420 ngx_str_t *default_hide_headers, ngx_hash_init_t *hash); |
884 | 421 |
422 | |
423 #define ngx_http_conf_upstream_srv_conf(uscf, module) \ | |
424 uscf->srv_conf[module.ctx_index] | |
509 | 425 |
479 | 426 |
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427 extern ngx_module_t ngx_http_upstream_module; |
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428 extern ngx_conf_bitmask_t ngx_http_upstream_cache_method_mask[]; |
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429 extern ngx_conf_bitmask_t ngx_http_upstream_ignore_headers_masks[]; |
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430 |
479 | 431 |
432 #endif /* _NGX_HTTP_UPSTREAM_H_INCLUDED_ */ |