Mercurial > hg > nginx
annotate src/stream/ngx_stream.h @ 6927:c36d160cd4e0
Access log: removed dead ev->timedout check in flush timer handler.
The ev->timedout flag is set on first timer expiration, and never reset
after it. Due to this the code to stop the timer when the timer was
canceled never worked (except in a very specific time frame immediately
after start), and the timer was always armed again. This essentially
resulted in a buffer flush at the end of an event loop iteration.
This behaviour actually seems to be better than just stopping the flush
timer for the whole shutdown, so it is preserved as is instead of fixing
the code to actually remove the timer. It will be further improved by
upcoming changes to preserve cancelable timers if there are other timers
blocking shutdown.
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Tue, 07 Mar 2017 18:51:12 +0300 |
parents | d2b2ff157da5 |
children | d7ce41bdf050 |
rev | line source |
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6115 | 1 |
2 /* | |
3 * Copyright (C) Roman Arutyunyan | |
4 * Copyright (C) Nginx, Inc. | |
5 */ | |
6 | |
7 | |
8 #ifndef _NGX_STREAM_H_INCLUDED_ | |
9 #define _NGX_STREAM_H_INCLUDED_ | |
10 | |
11 | |
12 #include <ngx_config.h> | |
13 #include <ngx_core.h> | |
14 | |
15 #if (NGX_STREAM_SSL) | |
16 #include <ngx_stream_ssl_module.h> | |
17 #endif | |
18 | |
19 | |
20 typedef struct ngx_stream_session_s ngx_stream_session_t; | |
21 | |
22 | |
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23 #include <ngx_stream_variables.h> |
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24 #include <ngx_stream_script.h> |
6115 | 25 #include <ngx_stream_upstream.h> |
26 #include <ngx_stream_upstream_round_robin.h> | |
27 | |
28 | |
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29 #define NGX_STREAM_OK 200 |
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30 #define NGX_STREAM_BAD_REQUEST 400 |
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31 #define NGX_STREAM_FORBIDDEN 403 |
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32 #define NGX_STREAM_INTERNAL_SERVER_ERROR 500 |
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33 #define NGX_STREAM_BAD_GATEWAY 502 |
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34 #define NGX_STREAM_SERVICE_UNAVAILABLE 503 |
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35 |
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36 |
6115 | 37 typedef struct { |
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38 void **main_conf; |
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39 void **srv_conf; |
6115 | 40 } ngx_stream_conf_ctx_t; |
41 | |
42 | |
43 typedef struct { | |
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44 ngx_sockaddr_t sockaddr; |
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45 socklen_t socklen; |
6115 | 46 |
47 /* server ctx */ | |
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48 ngx_stream_conf_ctx_t *ctx; |
6115 | 49 |
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50 unsigned bind:1; |
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51 unsigned wildcard:1; |
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52 unsigned ssl:1; |
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53 #if (NGX_HAVE_INET6) |
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54 unsigned ipv6only:1; |
6115 | 55 #endif |
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56 unsigned reuseport:1; |
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57 unsigned so_keepalive:2; |
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58 unsigned proxy_protocol:1; |
6115 | 59 #if (NGX_HAVE_KEEPALIVE_TUNABLE) |
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60 int tcp_keepidle; |
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61 int tcp_keepintvl; |
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62 int tcp_keepcnt; |
6115 | 63 #endif |
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64 int backlog; |
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65 int type; |
6115 | 66 } ngx_stream_listen_t; |
67 | |
68 | |
69 typedef struct { | |
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70 ngx_stream_conf_ctx_t *ctx; |
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71 ngx_str_t addr_text; |
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72 unsigned ssl:1; |
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73 unsigned proxy_protocol:1; |
6115 | 74 } ngx_stream_addr_conf_t; |
75 | |
76 typedef struct { | |
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77 in_addr_t addr; |
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78 ngx_stream_addr_conf_t conf; |
6115 | 79 } ngx_stream_in_addr_t; |
80 | |
81 | |
82 #if (NGX_HAVE_INET6) | |
83 | |
84 typedef struct { | |
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85 struct in6_addr addr6; |
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86 ngx_stream_addr_conf_t conf; |
6115 | 87 } ngx_stream_in6_addr_t; |
88 | |
89 #endif | |
90 | |
91 | |
92 typedef struct { | |
93 /* ngx_stream_in_addr_t or ngx_stream_in6_addr_t */ | |
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94 void *addrs; |
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95 ngx_uint_t naddrs; |
6115 | 96 } ngx_stream_port_t; |
97 | |
98 | |
99 typedef struct { | |
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100 int family; |
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101 int type; |
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102 in_port_t port; |
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103 ngx_array_t addrs; /* array of ngx_stream_conf_addr_t */ |
6115 | 104 } ngx_stream_conf_port_t; |
105 | |
106 | |
107 typedef struct { | |
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108 ngx_stream_listen_t opt; |
6115 | 109 } ngx_stream_conf_addr_t; |
110 | |
111 | |
6693 | 112 typedef enum { |
113 NGX_STREAM_POST_ACCEPT_PHASE = 0, | |
114 NGX_STREAM_PREACCESS_PHASE, | |
115 NGX_STREAM_ACCESS_PHASE, | |
116 NGX_STREAM_SSL_PHASE, | |
6694 | 117 NGX_STREAM_PREREAD_PHASE, |
6693 | 118 NGX_STREAM_CONTENT_PHASE, |
119 NGX_STREAM_LOG_PHASE | |
120 } ngx_stream_phases; | |
121 | |
122 | |
123 typedef struct ngx_stream_phase_handler_s ngx_stream_phase_handler_t; | |
124 | |
125 typedef ngx_int_t (*ngx_stream_phase_handler_pt)(ngx_stream_session_t *s, | |
126 ngx_stream_phase_handler_t *ph); | |
127 typedef ngx_int_t (*ngx_stream_handler_pt)(ngx_stream_session_t *s); | |
128 typedef void (*ngx_stream_content_handler_pt)(ngx_stream_session_t *s); | |
129 | |
130 | |
131 struct ngx_stream_phase_handler_s { | |
132 ngx_stream_phase_handler_pt checker; | |
133 ngx_stream_handler_pt handler; | |
134 ngx_uint_t next; | |
135 }; | |
136 | |
137 | |
138 typedef struct { | |
139 ngx_stream_phase_handler_t *handlers; | |
140 } ngx_stream_phase_engine_t; | |
141 | |
142 | |
143 typedef struct { | |
144 ngx_array_t handlers; | |
145 } ngx_stream_phase_t; | |
6175 | 146 |
147 | |
6115 | 148 typedef struct { |
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149 ngx_array_t servers; /* ngx_stream_core_srv_conf_t */ |
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150 ngx_array_t listen; /* ngx_stream_listen_t */ |
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151 |
6693 | 152 ngx_stream_phase_engine_t phase_engine; |
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153 |
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154 ngx_hash_t variables_hash; |
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155 |
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156 ngx_array_t variables; /* ngx_stream_variable_t */ |
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157 ngx_array_t prefix_variables; /* ngx_stream_variable_t */ |
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158 ngx_uint_t ncaptures; |
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159 |
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160 ngx_uint_t variables_hash_max_size; |
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161 ngx_uint_t variables_hash_bucket_size; |
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162 |
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163 ngx_hash_keys_arrays_t *variables_keys; |
6693 | 164 |
165 ngx_stream_phase_t phases[NGX_STREAM_LOG_PHASE + 1]; | |
6115 | 166 } ngx_stream_core_main_conf_t; |
167 | |
168 | |
169 typedef struct { | |
6693 | 170 ngx_stream_content_handler_pt handler; |
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171 |
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172 ngx_stream_conf_ctx_t *ctx; |
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173 |
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174 u_char *file_name; |
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175 ngx_uint_t line; |
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176 |
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177 ngx_flag_t tcp_nodelay; |
6694 | 178 size_t preread_buffer_size; |
179 ngx_msec_t preread_timeout; | |
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180 |
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181 ngx_log_t *error_log; |
6618 | 182 |
183 ngx_msec_t resolver_timeout; | |
184 ngx_resolver_t *resolver; | |
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185 |
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186 ngx_msec_t proxy_protocol_timeout; |
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187 |
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188 ngx_uint_t listen; /* unsigned listen:1; */ |
6115 | 189 } ngx_stream_core_srv_conf_t; |
190 | |
191 | |
192 struct ngx_stream_session_s { | |
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193 uint32_t signature; /* "STRM" */ |
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194 |
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195 ngx_connection_t *connection; |
6115 | 196 |
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197 off_t received; |
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198 time_t start_sec; |
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199 ngx_msec_t start_msec; |
6115 | 200 |
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201 ngx_log_handler_pt log_handler; |
6115 | 202 |
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203 void **ctx; |
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204 void **main_conf; |
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205 void **srv_conf; |
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206 |
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207 ngx_stream_upstream_t *upstream; |
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208 ngx_array_t *upstream_states; |
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209 /* of ngx_stream_upstream_state_t */ |
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210 ngx_stream_variable_value_t *variables; |
6115 | 211 |
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212 #if (NGX_PCRE) |
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213 ngx_uint_t ncaptures; |
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214 int *captures; |
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215 u_char *captures_data; |
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216 #endif |
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217 |
6693 | 218 ngx_int_t phase_handler; |
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219 ngx_uint_t status; |
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220 |
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221 unsigned ssl:1; |
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222 |
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223 unsigned stat_processing:1; |
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224 |
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225 unsigned health_check:1; |
6115 | 226 }; |
227 | |
228 | |
229 typedef struct { | |
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230 ngx_int_t (*preconfiguration)(ngx_conf_t *cf); |
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231 ngx_int_t (*postconfiguration)(ngx_conf_t *cf); |
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232 |
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233 void *(*create_main_conf)(ngx_conf_t *cf); |
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234 char *(*init_main_conf)(ngx_conf_t *cf, void *conf); |
6115 | 235 |
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236 void *(*create_srv_conf)(ngx_conf_t *cf); |
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237 char *(*merge_srv_conf)(ngx_conf_t *cf, void *prev, |
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238 void *conf); |
6115 | 239 } ngx_stream_module_t; |
240 | |
241 | |
242 #define NGX_STREAM_MODULE 0x4d525453 /* "STRM" */ | |
243 | |
244 #define NGX_STREAM_MAIN_CONF 0x02000000 | |
245 #define NGX_STREAM_SRV_CONF 0x04000000 | |
246 #define NGX_STREAM_UPS_CONF 0x08000000 | |
247 | |
248 | |
249 #define NGX_STREAM_MAIN_CONF_OFFSET offsetof(ngx_stream_conf_ctx_t, main_conf) | |
250 #define NGX_STREAM_SRV_CONF_OFFSET offsetof(ngx_stream_conf_ctx_t, srv_conf) | |
251 | |
252 | |
253 #define ngx_stream_get_module_ctx(s, module) (s)->ctx[module.ctx_index] | |
254 #define ngx_stream_set_ctx(s, c, module) s->ctx[module.ctx_index] = c; | |
255 #define ngx_stream_delete_ctx(s, module) s->ctx[module.ctx_index] = NULL; | |
256 | |
257 | |
258 #define ngx_stream_get_module_main_conf(s, module) \ | |
259 (s)->main_conf[module.ctx_index] | |
260 #define ngx_stream_get_module_srv_conf(s, module) \ | |
261 (s)->srv_conf[module.ctx_index] | |
262 | |
263 #define ngx_stream_conf_get_module_main_conf(cf, module) \ | |
264 ((ngx_stream_conf_ctx_t *) cf->ctx)->main_conf[module.ctx_index] | |
265 #define ngx_stream_conf_get_module_srv_conf(cf, module) \ | |
266 ((ngx_stream_conf_ctx_t *) cf->ctx)->srv_conf[module.ctx_index] | |
267 | |
268 #define ngx_stream_cycle_get_module_main_conf(cycle, module) \ | |
269 (cycle->conf_ctx[ngx_stream_module.index] ? \ | |
270 ((ngx_stream_conf_ctx_t *) cycle->conf_ctx[ngx_stream_module.index]) \ | |
271 ->main_conf[module.ctx_index]: \ | |
272 NULL) | |
273 | |
274 | |
6692 | 275 #define NGX_STREAM_WRITE_BUFFERED 0x10 |
276 | |
277 | |
6693 | 278 void ngx_stream_core_run_phases(ngx_stream_session_t *s); |
279 ngx_int_t ngx_stream_core_generic_phase(ngx_stream_session_t *s, | |
280 ngx_stream_phase_handler_t *ph); | |
6694 | 281 ngx_int_t ngx_stream_core_preread_phase(ngx_stream_session_t *s, |
282 ngx_stream_phase_handler_t *ph); | |
6693 | 283 ngx_int_t ngx_stream_core_content_phase(ngx_stream_session_t *s, |
284 ngx_stream_phase_handler_t *ph); | |
285 | |
286 | |
6115 | 287 void ngx_stream_init_connection(ngx_connection_t *c); |
6693 | 288 void ngx_stream_session_handler(ngx_event_t *rev); |
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289 void ngx_stream_finalize_session(ngx_stream_session_t *s, ngx_uint_t rc); |
6115 | 290 |
291 | |
292 extern ngx_module_t ngx_stream_module; | |
293 extern ngx_uint_t ngx_stream_max_module; | |
294 extern ngx_module_t ngx_stream_core_module; | |
295 | |
296 | |
6692 | 297 typedef ngx_int_t (*ngx_stream_filter_pt)(ngx_stream_session_t *s, |
298 ngx_chain_t *chain, ngx_uint_t from_upstream); | |
299 | |
300 | |
301 extern ngx_stream_filter_pt ngx_stream_top_filter; | |
302 | |
303 | |
6115 | 304 #endif /* _NGX_STREAM_H_INCLUDED_ */ |