Mercurial > hg > nginx-quic
annotate src/http/ngx_http_upstream.h @ 7382:945234478ff8 stable-1.14
Version bump.
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Tue, 06 Nov 2018 16:33:16 +0300 |
parents | a7ed15573ae9 |
children | 8b68d50090e4 |
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_HTTP_429 0x00000400 |
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30 #define NGX_HTTP_UPSTREAM_FT_UPDATING 0x00000800 |
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31 #define NGX_HTTP_UPSTREAM_FT_BUSY_LOCK 0x00001000 |
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32 #define NGX_HTTP_UPSTREAM_FT_MAX_WAITING 0x00002000 |
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33 #define NGX_HTTP_UPSTREAM_FT_NON_IDEMPOTENT 0x00004000 |
1378 | 34 #define NGX_HTTP_UPSTREAM_FT_NOLIVE 0x40000000 |
665 | 35 #define NGX_HTTP_UPSTREAM_FT_OFF 0x80000000 |
479 | 36 |
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37 #define NGX_HTTP_UPSTREAM_FT_STATUS (NGX_HTTP_UPSTREAM_FT_HTTP_500 \ |
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38 |NGX_HTTP_UPSTREAM_FT_HTTP_502 \ |
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39 |NGX_HTTP_UPSTREAM_FT_HTTP_503 \ |
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40 |NGX_HTTP_UPSTREAM_FT_HTTP_504 \ |
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41 |NGX_HTTP_UPSTREAM_FT_HTTP_403 \ |
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42 |NGX_HTTP_UPSTREAM_FT_HTTP_404 \ |
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43 |NGX_HTTP_UPSTREAM_FT_HTTP_429) |
479 | 44 |
45 #define NGX_HTTP_UPSTREAM_INVALID_HEADER 40 | |
46 | |
47 | |
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48 #define NGX_HTTP_UPSTREAM_IGN_XA_REDIRECT 0x00000002 |
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49 #define NGX_HTTP_UPSTREAM_IGN_XA_EXPIRES 0x00000004 |
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50 #define NGX_HTTP_UPSTREAM_IGN_EXPIRES 0x00000008 |
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51 #define NGX_HTTP_UPSTREAM_IGN_CACHE_CONTROL 0x00000010 |
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52 #define NGX_HTTP_UPSTREAM_IGN_SET_COOKIE 0x00000020 |
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53 #define NGX_HTTP_UPSTREAM_IGN_XA_LIMIT_RATE 0x00000040 |
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54 #define NGX_HTTP_UPSTREAM_IGN_XA_BUFFERING 0x00000080 |
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55 #define NGX_HTTP_UPSTREAM_IGN_XA_CHARSET 0x00000100 |
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56 #define NGX_HTTP_UPSTREAM_IGN_VARY 0x00000200 |
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57 |
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58 |
479 | 59 typedef struct { |
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60 ngx_uint_t status; |
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61 ngx_msec_t response_time; |
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62 ngx_msec_t connect_time; |
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63 ngx_msec_t header_time; |
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64 ngx_msec_t queue_time; |
3795 | 65 off_t response_length; |
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66 off_t bytes_received; |
563 | 67 |
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68 ngx_str_t *peer; |
479 | 69 } ngx_http_upstream_state_t; |
70 | |
71 | |
72 typedef struct { | |
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73 ngx_hash_t headers_in_hash; |
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74 ngx_array_t upstreams; |
884 | 75 /* ngx_http_upstream_srv_conf_t */ |
509 | 76 } ngx_http_upstream_main_conf_t; |
77 | |
884 | 78 typedef struct ngx_http_upstream_srv_conf_s ngx_http_upstream_srv_conf_t; |
79 | |
80 typedef ngx_int_t (*ngx_http_upstream_init_pt)(ngx_conf_t *cf, | |
81 ngx_http_upstream_srv_conf_t *us); | |
82 typedef ngx_int_t (*ngx_http_upstream_init_peer_pt)(ngx_http_request_t *r, | |
83 ngx_http_upstream_srv_conf_t *us); | |
84 | |
85 | |
86 typedef struct { | |
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87 ngx_http_upstream_init_pt init_upstream; |
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88 ngx_http_upstream_init_peer_pt init; |
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89 void *data; |
884 | 90 } ngx_http_upstream_peer_t; |
91 | |
509 | 92 |
93 typedef struct { | |
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94 ngx_str_t name; |
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95 ngx_addr_t *addrs; |
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96 ngx_uint_t naddrs; |
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97 ngx_uint_t weight; |
6705 | 98 ngx_uint_t max_conns; |
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99 ngx_uint_t max_fails; |
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100 time_t fail_timeout; |
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101 ngx_msec_t slow_start; |
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102 ngx_uint_t down; |
884 | 103 |
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104 unsigned backup:1; |
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105 |
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106 NGX_COMPAT_BEGIN(6) |
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107 NGX_COMPAT_END |
884 | 108 } ngx_http_upstream_server_t; |
109 | |
651 | 110 |
884 | 111 #define NGX_HTTP_UPSTREAM_CREATE 0x0001 |
112 #define NGX_HTTP_UPSTREAM_WEIGHT 0x0002 | |
113 #define NGX_HTTP_UPSTREAM_MAX_FAILS 0x0004 | |
114 #define NGX_HTTP_UPSTREAM_FAIL_TIMEOUT 0x0008 | |
115 #define NGX_HTTP_UPSTREAM_DOWN 0x0010 | |
116 #define NGX_HTTP_UPSTREAM_BACKUP 0x0020 | |
6705 | 117 #define NGX_HTTP_UPSTREAM_MAX_CONNS 0x0100 |
884 | 118 |
651 | 119 |
884 | 120 struct ngx_http_upstream_srv_conf_s { |
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121 ngx_http_upstream_peer_t peer; |
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122 void **srv_conf; |
884 | 123 |
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124 ngx_array_t *servers; /* ngx_http_upstream_server_t */ |
884 | 125 |
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126 ngx_uint_t flags; |
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127 ngx_str_t host; |
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128 u_char *file_name; |
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129 ngx_uint_t line; |
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130 in_port_t port; |
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131 ngx_uint_t no_port; /* unsigned no_port:1 */ |
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132 |
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133 #if (NGX_HTTP_UPSTREAM_ZONE) |
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134 ngx_shm_zone_t *shm_zone; |
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135 #endif |
884 | 136 }; |
651 | 137 |
138 | |
139 typedef struct { | |
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140 ngx_addr_t *addr; |
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141 ngx_http_complex_value_t *value; |
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142 #if (NGX_HAVE_TRANSPARENT_PROXY) |
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143 ngx_uint_t transparent; /* unsigned transparent:1; */ |
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144 #endif |
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145 } ngx_http_upstream_local_t; |
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146 |
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147 |
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148 typedef struct { |
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149 ngx_http_upstream_srv_conf_t *upstream; |
884 | 150 |
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151 ngx_msec_t connect_timeout; |
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152 ngx_msec_t send_timeout; |
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153 ngx_msec_t read_timeout; |
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154 ngx_msec_t next_upstream_timeout; |
479 | 155 |
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156 size_t send_lowat; |
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157 size_t buffer_size; |
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158 size_t limit_rate; |
529 | 159 |
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160 size_t busy_buffers_size; |
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161 size_t max_temp_file_size; |
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162 size_t temp_file_write_size; |
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163 |
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164 size_t busy_buffers_size_conf; |
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165 size_t max_temp_file_size_conf; |
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166 size_t temp_file_write_size_conf; |
509 | 167 |
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168 ngx_bufs_t bufs; |
529 | 169 |
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170 ngx_uint_t ignore_headers; |
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171 ngx_uint_t next_upstream; |
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172 ngx_uint_t store_access; |
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173 ngx_uint_t next_upstream_tries; |
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174 ngx_flag_t buffering; |
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175 ngx_flag_t request_buffering; |
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176 ngx_flag_t pass_request_headers; |
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177 ngx_flag_t pass_request_body; |
479 | 178 |
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179 ngx_flag_t ignore_client_abort; |
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180 ngx_flag_t intercept_errors; |
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181 ngx_flag_t cyclic_temp_file; |
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Upstream: proxy_force_ranges and friends.
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182 ngx_flag_t force_ranges; |
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183 |
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184 ngx_path_t *temp_path; |
479 | 185 |
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186 ngx_hash_t hide_headers_hash; |
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187 ngx_array_t *hide_headers; |
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188 ngx_array_t *pass_headers; |
509 | 189 |
5008
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Fixed and improved the "*_bind" directives of proxying modules.
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190 ngx_http_upstream_local_t *local; |
3271
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proxy_bind, fastcgi_bind, and memcached_bind
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191 |
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192 #if (NGX_HTTP_CACHE) |
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193 ngx_shm_zone_t *cache_zone; |
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194 ngx_http_complex_value_t *cache_value; |
479 | 195 |
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196 ngx_uint_t cache_min_uses; |
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197 ngx_uint_t cache_use_stale; |
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proxy_cache_methods and fastcgi_cache_methods
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198 ngx_uint_t cache_methods; |
479 | 199 |
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Cache: proxy_cache_max_range_offset and friends.
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200 off_t cache_max_range_offset; |
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Cache: proxy_cache_max_range_offset and friends.
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201 |
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202 ngx_flag_t cache_lock; |
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203 ngx_msec_t cache_lock_timeout; |
5905
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Cache: proxy_cache_lock_age and friends.
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204 ngx_msec_t cache_lock_age; |
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205 |
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206 ngx_flag_t cache_revalidate; |
6290
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Upstream: proxy_cache_convert_head directive.
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207 ngx_flag_t cache_convert_head; |
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Upstream: proxy_cache_background_update and friends.
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208 ngx_flag_t cache_background_update; |
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209 |
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210 ngx_array_t *cache_valid; |
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211 ngx_array_t *cache_bypass; |
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Modules compatibility: cache purge fields.
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212 ngx_array_t *cache_purge; |
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213 ngx_array_t *no_cache; |
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214 #endif |
509 | 215 |
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216 ngx_array_t *store_lengths; |
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217 ngx_array_t *store_values; |
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218 |
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219 #if (NGX_HTTP_CACHE) |
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220 signed cache:2; |
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221 #endif |
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222 signed store:2; |
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223 unsigned intercept_404:1; |
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224 unsigned change_buffering:1; |
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225 unsigned pass_trailers:1; |
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Upstream: u->conf->preserve_output flag.
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226 unsigned preserve_output:1; |
581 | 227 |
6735
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Modules compatibility: compatibility with NGX_HTTP_SSL.
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228 #if (NGX_HTTP_SSL || NGX_COMPAT) |
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229 ngx_ssl_t *ssl; |
2754 | 230 ngx_flag_t ssl_session_reuse; |
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Upstream: proxy_ssl_name and proxy_ssl_server_name directives.
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231 |
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232 ngx_http_complex_value_t *ssl_name; |
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Upstream: proxy_ssl_name and proxy_ssl_server_name directives.
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233 ngx_flag_t ssl_server_name; |
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Upstream: proxy_ssl_verify and friends.
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234 ngx_flag_t ssl_verify; |
577 | 235 #endif |
236 | |
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update r3945 with more descriptive error message
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237 ngx_str_t module; |
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Introduced the NGX_COMPAT macro.
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238 |
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239 NGX_COMPAT_BEGIN(2) |
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240 NGX_COMPAT_END |
479 | 241 } ngx_http_upstream_conf_t; |
242 | |
243 | |
509 | 244 typedef struct { |
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245 ngx_str_t name; |
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246 ngx_http_header_handler_pt handler; |
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247 ngx_uint_t offset; |
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248 ngx_http_header_handler_pt copy_handler; |
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249 ngx_uint_t conf; |
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250 ngx_uint_t redirect; /* unsigned redirect:1; */ |
509 | 251 } ngx_http_upstream_header_t; |
252 | |
253 | |
254 typedef struct { | |
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255 ngx_list_t headers; |
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256 ngx_list_t trailers; |
509 | 257 |
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258 ngx_uint_t status_n; |
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259 ngx_str_t status_line; |
529 | 260 |
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261 ngx_table_elt_t *status; |
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262 ngx_table_elt_t *date; |
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263 ngx_table_elt_t *server; |
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264 ngx_table_elt_t *connection; |
509 | 265 |
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266 ngx_table_elt_t *expires; |
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267 ngx_table_elt_t *etag; |
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268 ngx_table_elt_t *x_accel_expires; |
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269 ngx_table_elt_t *x_accel_redirect; |
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270 ngx_table_elt_t *x_accel_limit_rate; |
509 | 271 |
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272 ngx_table_elt_t *content_type; |
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273 ngx_table_elt_t *content_length; |
509 | 274 |
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275 ngx_table_elt_t *last_modified; |
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276 ngx_table_elt_t *location; |
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277 ngx_table_elt_t *accept_ranges; |
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278 ngx_table_elt_t *www_authenticate; |
4123
0ee350b5177c
Upstream: Transfer-Encoding header processing.
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|
279 ngx_table_elt_t *transfer_encoding; |
5877
60fde1bc7236
Cache: disable caching of responses with Vary (ticket #118).
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280 ngx_table_elt_t *vary; |
509 | 281 |
282 #if (NGX_HTTP_GZIP) | |
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283 ngx_table_elt_t *content_encoding; |
509 | 284 #endif |
285 | |
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286 ngx_array_t cache_control; |
5677
3a48775f1535
Upstream: added the "$upstream_cookie_<name>" variables.
Vladimir Homutov <vl@nginx.com>
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|
287 ngx_array_t cookies; |
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Upstream: Transfer-Encoding header processing.
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288 |
5732
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|
289 off_t content_length_n; |
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|
290 time_t last_modified_time; |
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291 |
4124
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Upstream: Connection header processing.
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|
292 unsigned connection_close:1; |
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293 unsigned chunked:1; |
509 | 294 } ngx_http_upstream_headers_in_t; |
295 | |
479 | 296 |
1658 | 297 typedef struct { |
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298 ngx_str_t host; |
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299 in_port_t port; |
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300 ngx_uint_t no_port; /* unsigned no_port:1 */ |
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301 |
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302 ngx_uint_t naddrs; |
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Resolver: added support for SRV records.
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|
303 ngx_resolver_addr_t *addrs; |
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304 |
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305 struct sockaddr *sockaddr; |
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306 socklen_t socklen; |
6785
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Upstream: added the ngx_http_upstream_resolved_t.name field.
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|
307 ngx_str_t name; |
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308 |
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309 ngx_resolver_ctx_t *ctx; |
1658 | 310 } ngx_http_upstream_resolved_t; |
311 | |
312 | |
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use already available r and u instead of ev
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313 typedef void (*ngx_http_upstream_handler_pt)(ngx_http_request_t *r, |
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314 ngx_http_upstream_t *u); |
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315 |
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316 |
479 | 317 struct ngx_http_upstream_s { |
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318 ngx_http_upstream_handler_pt read_event_handler; |
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319 ngx_http_upstream_handler_pt write_event_handler; |
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320 |
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321 ngx_peer_connection_t peer; |
479 | 322 |
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323 ngx_event_pipe_t *pipe; |
479 | 324 |
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325 ngx_chain_t *request_bufs; |
479 | 326 |
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327 ngx_output_chain_ctx_t output; |
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328 ngx_chain_writer_ctx_t writer; |
479 | 329 |
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330 ngx_http_upstream_conf_t *conf; |
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331 ngx_http_upstream_srv_conf_t *upstream; |
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332 #if (NGX_HTTP_CACHE) |
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333 ngx_array_t *caches; |
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334 #endif |
479 | 335 |
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336 ngx_http_upstream_headers_in_t headers_in; |
509 | 337 |
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338 ngx_http_upstream_resolved_t *resolved; |
1658 | 339 |
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340 ngx_buf_t from_client; |
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341 |
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342 ngx_buf_t buffer; |
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343 off_t length; |
581 | 344 |
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345 ngx_chain_t *out_bufs; |
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346 ngx_chain_t *busy_bufs; |
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347 ngx_chain_t *free_bufs; |
581 | 348 |
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349 ngx_int_t (*input_filter_init)(void *data); |
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350 ngx_int_t (*input_filter)(void *data, ssize_t bytes); |
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351 void *input_filter_ctx; |
479 | 352 |
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353 #if (NGX_HTTP_CACHE) |
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354 ngx_int_t (*create_key)(ngx_http_request_t *r); |
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355 #endif |
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356 ngx_int_t (*create_request)(ngx_http_request_t *r); |
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357 ngx_int_t (*reinit_request)(ngx_http_request_t *r); |
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358 ngx_int_t (*process_header)(ngx_http_request_t *r); |
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359 void (*abort_request)(ngx_http_request_t *r); |
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360 void (*finalize_request)(ngx_http_request_t *r, |
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361 ngx_int_t rc); |
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362 ngx_int_t (*rewrite_redirect)(ngx_http_request_t *r, |
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363 ngx_table_elt_t *h, size_t prefix); |
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364 ngx_int_t (*rewrite_cookie)(ngx_http_request_t *r, |
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365 ngx_table_elt_t *h); |
479 | 366 |
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367 ngx_msec_t timeout; |
527 | 368 |
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369 ngx_http_upstream_state_t *state; |
479 | 370 |
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371 ngx_str_t method; |
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372 ngx_str_t schema; |
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373 ngx_str_t uri; |
555 | 374 |
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375 #if (NGX_HTTP_SSL || NGX_COMPAT) |
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376 ngx_str_t ssl_name; |
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377 #endif |
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378 |
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379 ngx_http_cleanup_pt *cleanup; |
569 | 380 |
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381 unsigned store:1; |
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382 unsigned cacheable:1; |
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383 unsigned accel:1; |
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384 unsigned ssl:1; |
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385 #if (NGX_HTTP_CACHE) |
2952 | 386 unsigned cache_status:3; |
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387 #endif |
479 | 388 |
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389 unsigned buffering:1; |
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390 unsigned keepalive:1; |
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391 unsigned upgrade:1; |
649 | 392 |
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393 unsigned request_sent:1; |
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394 unsigned request_body_sent:1; |
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395 unsigned request_body_blocked:1; |
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396 unsigned header_sent:1; |
479 | 397 }; |
398 | |
399 | |
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400 typedef struct { |
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401 ngx_uint_t status; |
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402 ngx_uint_t mask; |
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403 } ngx_http_upstream_next_t; |
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404 |
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405 |
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406 typedef struct { |
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407 ngx_str_t key; |
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408 ngx_str_t value; |
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409 ngx_uint_t skip_empty; |
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410 } ngx_http_upstream_param_t; |
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411 |
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412 |
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413 ngx_int_t ngx_http_upstream_create(ngx_http_request_t *r); |
479 | 414 void ngx_http_upstream_init(ngx_http_request_t *r); |
651 | 415 ngx_http_upstream_srv_conf_t *ngx_http_upstream_add(ngx_conf_t *cf, |
884 | 416 ngx_url_t *u, ngx_uint_t flags); |
3399 | 417 char *ngx_http_upstream_bind_set_slot(ngx_conf_t *cf, ngx_command_t *cmd, |
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418 void *conf); |
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419 char *ngx_http_upstream_param_set_slot(ngx_conf_t *cf, ngx_command_t *cmd, |
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420 void *conf); |
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421 ngx_int_t ngx_http_upstream_hide_headers_hash(ngx_conf_t *cf, |
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422 ngx_http_upstream_conf_t *conf, ngx_http_upstream_conf_t *prev, |
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423 ngx_str_t *default_hide_headers, ngx_hash_init_t *hash); |
884 | 424 |
425 | |
426 #define ngx_http_conf_upstream_srv_conf(uscf, module) \ | |
427 uscf->srv_conf[module.ctx_index] | |
509 | 428 |
479 | 429 |
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430 extern ngx_module_t ngx_http_upstream_module; |
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431 extern ngx_conf_bitmask_t ngx_http_upstream_cache_method_mask[]; |
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432 extern ngx_conf_bitmask_t ngx_http_upstream_ignore_headers_masks[]; |
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433 |
479 | 434 |
435 #endif /* _NGX_HTTP_UPSTREAM_H_INCLUDED_ */ |