Mercurial > hg > nginx
annotate src/event/modules/ngx_eventport_module.c @ 6021:117c77b22db1
Events: implemented eventport notification mechanism.
| author | Ruslan Ermilov <ru@nginx.com> |
|---|---|
| date | Sat, 14 Mar 2015 17:37:21 +0300 |
| parents | 466bd63b63d1 |
| children | 4652f8f26b12 |
| rev | line source |
|---|---|
| 719 | 1 |
| 2 /* | |
| 3 * Copyright (C) Igor Sysoev | |
| 4412 | 4 * Copyright (C) Nginx, Inc. |
| 719 | 5 */ |
| 6 | |
| 7 | |
| 8 #include <ngx_config.h> | |
| 9 #include <ngx_core.h> | |
| 10 #include <ngx_event.h> | |
| 11 | |
| 12 | |
| 13 #if (NGX_TEST_BUILD_EVENTPORT) | |
| 14 | |
| 15 #define ushort_t u_short | |
| 16 #define uint_t u_int | |
| 17 | |
|
4759
4c36e15651f7
Fixed compilation with -Wmissing-prototypes.
Ruslan Ermilov <ru@nginx.com>
parents:
4572
diff
changeset
|
18 #ifndef CLOCK_REALTIME |
|
4c36e15651f7
Fixed compilation with -Wmissing-prototypes.
Ruslan Ermilov <ru@nginx.com>
parents:
4572
diff
changeset
|
19 #define CLOCK_REALTIME 0 |
|
4c36e15651f7
Fixed compilation with -Wmissing-prototypes.
Ruslan Ermilov <ru@nginx.com>
parents:
4572
diff
changeset
|
20 typedef int clockid_t; |
|
4c36e15651f7
Fixed compilation with -Wmissing-prototypes.
Ruslan Ermilov <ru@nginx.com>
parents:
4572
diff
changeset
|
21 typedef void * timer_t; |
|
4c36e15651f7
Fixed compilation with -Wmissing-prototypes.
Ruslan Ermilov <ru@nginx.com>
parents:
4572
diff
changeset
|
22 #endif |
|
4c36e15651f7
Fixed compilation with -Wmissing-prototypes.
Ruslan Ermilov <ru@nginx.com>
parents:
4572
diff
changeset
|
23 |
| 719 | 24 /* Solaris declarations */ |
| 25 | |
| 26 #define PORT_SOURCE_AIO 1 | |
| 27 #define PORT_SOURCE_TIMER 2 | |
| 28 #define PORT_SOURCE_USER 3 | |
| 29 #define PORT_SOURCE_FD 4 | |
| 30 #define PORT_SOURCE_ALERT 5 | |
| 31 #define PORT_SOURCE_MQ 6 | |
| 32 | |
|
4759
4c36e15651f7
Fixed compilation with -Wmissing-prototypes.
Ruslan Ermilov <ru@nginx.com>
parents:
4572
diff
changeset
|
33 #ifndef ETIME |
| 719 | 34 #define ETIME 64 |
|
4759
4c36e15651f7
Fixed compilation with -Wmissing-prototypes.
Ruslan Ermilov <ru@nginx.com>
parents:
4572
diff
changeset
|
35 #endif |
| 719 | 36 |
| 37 #define SIGEV_PORT 4 | |
| 38 | |
| 39 typedef struct { | |
| 40 int portev_events; /* event data is source specific */ | |
| 41 ushort_t portev_source; /* event source */ | |
| 42 ushort_t portev_pad; /* port internal use */ | |
| 43 uintptr_t portev_object; /* source specific object */ | |
| 44 void *portev_user; /* user cookie */ | |
| 45 } port_event_t; | |
| 46 | |
| 47 typedef struct port_notify { | |
| 48 int portnfy_port; /* bind request(s) to port */ | |
| 49 void *portnfy_user; /* user defined */ | |
| 50 } port_notify_t; | |
| 51 | |
|
1939
6e7daf852eec
restore building --test-build-rtsig and --test-build-eventport on FreeBSD 6
Igor Sysoev <igor@sysoev.ru>
parents:
1870
diff
changeset
|
52 #if (__FreeBSD_version < 700005) |
|
6e7daf852eec
restore building --test-build-rtsig and --test-build-eventport on FreeBSD 6
Igor Sysoev <igor@sysoev.ru>
parents:
1870
diff
changeset
|
53 |
|
6e7daf852eec
restore building --test-build-rtsig and --test-build-eventport on FreeBSD 6
Igor Sysoev <igor@sysoev.ru>
parents:
1870
diff
changeset
|
54 typedef struct itimerspec { /* definition per POSIX.4 */ |
|
6e7daf852eec
restore building --test-build-rtsig and --test-build-eventport on FreeBSD 6
Igor Sysoev <igor@sysoev.ru>
parents:
1870
diff
changeset
|
55 struct timespec it_interval;/* timer period */ |
|
6e7daf852eec
restore building --test-build-rtsig and --test-build-eventport on FreeBSD 6
Igor Sysoev <igor@sysoev.ru>
parents:
1870
diff
changeset
|
56 struct timespec it_value; /* timer expiration */ |
|
6e7daf852eec
restore building --test-build-rtsig and --test-build-eventport on FreeBSD 6
Igor Sysoev <igor@sysoev.ru>
parents:
1870
diff
changeset
|
57 } itimerspec_t; |
|
6e7daf852eec
restore building --test-build-rtsig and --test-build-eventport on FreeBSD 6
Igor Sysoev <igor@sysoev.ru>
parents:
1870
diff
changeset
|
58 |
|
6e7daf852eec
restore building --test-build-rtsig and --test-build-eventport on FreeBSD 6
Igor Sysoev <igor@sysoev.ru>
parents:
1870
diff
changeset
|
59 #endif |
|
6e7daf852eec
restore building --test-build-rtsig and --test-build-eventport on FreeBSD 6
Igor Sysoev <igor@sysoev.ru>
parents:
1870
diff
changeset
|
60 |
|
4759
4c36e15651f7
Fixed compilation with -Wmissing-prototypes.
Ruslan Ermilov <ru@nginx.com>
parents:
4572
diff
changeset
|
61 int port_create(void); |
|
4c36e15651f7
Fixed compilation with -Wmissing-prototypes.
Ruslan Ermilov <ru@nginx.com>
parents:
4572
diff
changeset
|
62 |
| 719 | 63 int port_create(void) |
| 64 { | |
| 65 return -1; | |
| 66 } | |
| 67 | |
|
4759
4c36e15651f7
Fixed compilation with -Wmissing-prototypes.
Ruslan Ermilov <ru@nginx.com>
parents:
4572
diff
changeset
|
68 |
|
4c36e15651f7
Fixed compilation with -Wmissing-prototypes.
Ruslan Ermilov <ru@nginx.com>
parents:
4572
diff
changeset
|
69 int port_associate(int port, int source, uintptr_t object, int events, |
|
4c36e15651f7
Fixed compilation with -Wmissing-prototypes.
Ruslan Ermilov <ru@nginx.com>
parents:
4572
diff
changeset
|
70 void *user); |
|
4c36e15651f7
Fixed compilation with -Wmissing-prototypes.
Ruslan Ermilov <ru@nginx.com>
parents:
4572
diff
changeset
|
71 |
| 719 | 72 int port_associate(int port, int source, uintptr_t object, int events, |
| 73 void *user) | |
| 74 { | |
| 75 return -1; | |
| 76 } | |
| 77 | |
|
4759
4c36e15651f7
Fixed compilation with -Wmissing-prototypes.
Ruslan Ermilov <ru@nginx.com>
parents:
4572
diff
changeset
|
78 |
|
4c36e15651f7
Fixed compilation with -Wmissing-prototypes.
Ruslan Ermilov <ru@nginx.com>
parents:
4572
diff
changeset
|
79 int port_dissociate(int port, int source, uintptr_t object); |
|
4c36e15651f7
Fixed compilation with -Wmissing-prototypes.
Ruslan Ermilov <ru@nginx.com>
parents:
4572
diff
changeset
|
80 |
| 719 | 81 int port_dissociate(int port, int source, uintptr_t object) |
| 82 { | |
| 83 return -1; | |
| 84 } | |
| 85 | |
|
4759
4c36e15651f7
Fixed compilation with -Wmissing-prototypes.
Ruslan Ermilov <ru@nginx.com>
parents:
4572
diff
changeset
|
86 |
|
4c36e15651f7
Fixed compilation with -Wmissing-prototypes.
Ruslan Ermilov <ru@nginx.com>
parents:
4572
diff
changeset
|
87 int port_getn(int port, port_event_t list[], uint_t max, uint_t *nget, |
|
4c36e15651f7
Fixed compilation with -Wmissing-prototypes.
Ruslan Ermilov <ru@nginx.com>
parents:
4572
diff
changeset
|
88 struct timespec *timeout); |
|
4c36e15651f7
Fixed compilation with -Wmissing-prototypes.
Ruslan Ermilov <ru@nginx.com>
parents:
4572
diff
changeset
|
89 |
| 719 | 90 int port_getn(int port, port_event_t list[], uint_t max, uint_t *nget, |
| 91 struct timespec *timeout) | |
| 92 { | |
| 93 return -1; | |
| 94 } | |
| 95 | |
|
6021
117c77b22db1
Events: implemented eventport notification mechanism.
Ruslan Ermilov <ru@nginx.com>
parents:
6018
diff
changeset
|
96 int port_send(int port, int events, void *user); |
|
117c77b22db1
Events: implemented eventport notification mechanism.
Ruslan Ermilov <ru@nginx.com>
parents:
6018
diff
changeset
|
97 |
|
117c77b22db1
Events: implemented eventport notification mechanism.
Ruslan Ermilov <ru@nginx.com>
parents:
6018
diff
changeset
|
98 int port_send(int port, int events, void *user) |
|
117c77b22db1
Events: implemented eventport notification mechanism.
Ruslan Ermilov <ru@nginx.com>
parents:
6018
diff
changeset
|
99 { |
|
117c77b22db1
Events: implemented eventport notification mechanism.
Ruslan Ermilov <ru@nginx.com>
parents:
6018
diff
changeset
|
100 return -1; |
|
117c77b22db1
Events: implemented eventport notification mechanism.
Ruslan Ermilov <ru@nginx.com>
parents:
6018
diff
changeset
|
101 } |
|
117c77b22db1
Events: implemented eventport notification mechanism.
Ruslan Ermilov <ru@nginx.com>
parents:
6018
diff
changeset
|
102 |
|
4759
4c36e15651f7
Fixed compilation with -Wmissing-prototypes.
Ruslan Ermilov <ru@nginx.com>
parents:
4572
diff
changeset
|
103 |
|
4c36e15651f7
Fixed compilation with -Wmissing-prototypes.
Ruslan Ermilov <ru@nginx.com>
parents:
4572
diff
changeset
|
104 int timer_create(clockid_t clock_id, struct sigevent *evp, timer_t *timerid); |
|
4c36e15651f7
Fixed compilation with -Wmissing-prototypes.
Ruslan Ermilov <ru@nginx.com>
parents:
4572
diff
changeset
|
105 |
| 719 | 106 int timer_create(clockid_t clock_id, struct sigevent *evp, timer_t *timerid) |
| 107 { | |
| 108 return -1; | |
| 109 } | |
| 110 | |
|
4759
4c36e15651f7
Fixed compilation with -Wmissing-prototypes.
Ruslan Ermilov <ru@nginx.com>
parents:
4572
diff
changeset
|
111 |
|
4c36e15651f7
Fixed compilation with -Wmissing-prototypes.
Ruslan Ermilov <ru@nginx.com>
parents:
4572
diff
changeset
|
112 int timer_settime(timer_t timerid, int flags, const struct itimerspec *value, |
|
4c36e15651f7
Fixed compilation with -Wmissing-prototypes.
Ruslan Ermilov <ru@nginx.com>
parents:
4572
diff
changeset
|
113 struct itimerspec *ovalue); |
|
4c36e15651f7
Fixed compilation with -Wmissing-prototypes.
Ruslan Ermilov <ru@nginx.com>
parents:
4572
diff
changeset
|
114 |
| 719 | 115 int timer_settime(timer_t timerid, int flags, const struct itimerspec *value, |
| 116 struct itimerspec *ovalue) | |
| 117 { | |
| 118 return -1; | |
| 119 } | |
| 120 | |
|
4759
4c36e15651f7
Fixed compilation with -Wmissing-prototypes.
Ruslan Ermilov <ru@nginx.com>
parents:
4572
diff
changeset
|
121 |
|
4c36e15651f7
Fixed compilation with -Wmissing-prototypes.
Ruslan Ermilov <ru@nginx.com>
parents:
4572
diff
changeset
|
122 int timer_delete(timer_t timerid); |
|
4c36e15651f7
Fixed compilation with -Wmissing-prototypes.
Ruslan Ermilov <ru@nginx.com>
parents:
4572
diff
changeset
|
123 |
| 719 | 124 int timer_delete(timer_t timerid) |
| 125 { | |
| 126 return -1; | |
| 127 } | |
| 128 | |
| 129 #endif | |
| 130 | |
| 131 | |
| 132 typedef struct { | |
|
1354
f69d1aab6a0f
make 64-bit ngx_int_t on 64-bit platforms
Igor Sysoev <igor@sysoev.ru>
parents:
1287
diff
changeset
|
133 ngx_uint_t events; |
| 719 | 134 } ngx_eventport_conf_t; |
| 135 | |
| 136 | |
| 137 static ngx_int_t ngx_eventport_init(ngx_cycle_t *cycle, ngx_msec_t timer); | |
| 138 static void ngx_eventport_done(ngx_cycle_t *cycle); | |
|
1354
f69d1aab6a0f
make 64-bit ngx_int_t on 64-bit platforms
Igor Sysoev <igor@sysoev.ru>
parents:
1287
diff
changeset
|
139 static ngx_int_t ngx_eventport_add_event(ngx_event_t *ev, ngx_int_t event, |
|
f69d1aab6a0f
make 64-bit ngx_int_t on 64-bit platforms
Igor Sysoev <igor@sysoev.ru>
parents:
1287
diff
changeset
|
140 ngx_uint_t flags); |
|
f69d1aab6a0f
make 64-bit ngx_int_t on 64-bit platforms
Igor Sysoev <igor@sysoev.ru>
parents:
1287
diff
changeset
|
141 static ngx_int_t ngx_eventport_del_event(ngx_event_t *ev, ngx_int_t event, |
|
f69d1aab6a0f
make 64-bit ngx_int_t on 64-bit platforms
Igor Sysoev <igor@sysoev.ru>
parents:
1287
diff
changeset
|
142 ngx_uint_t flags); |
|
6021
117c77b22db1
Events: implemented eventport notification mechanism.
Ruslan Ermilov <ru@nginx.com>
parents:
6018
diff
changeset
|
143 static ngx_int_t ngx_eventport_notify(ngx_event_handler_pt handler); |
| 719 | 144 static ngx_int_t ngx_eventport_process_events(ngx_cycle_t *cycle, |
| 145 ngx_msec_t timer, ngx_uint_t flags); | |
| 146 | |
| 147 static void *ngx_eventport_create_conf(ngx_cycle_t *cycle); | |
| 148 static char *ngx_eventport_init_conf(ngx_cycle_t *cycle, void *conf); | |
| 149 | |
| 150 static int ep = -1; | |
| 151 static port_event_t *event_list; | |
|
1354
f69d1aab6a0f
make 64-bit ngx_int_t on 64-bit platforms
Igor Sysoev <igor@sysoev.ru>
parents:
1287
diff
changeset
|
152 static ngx_uint_t nevents; |
|
1870
a62fb6c156c5
fix building --test-build-rtsig and --test-build-eventport on FreeBSD 7
Igor Sysoev <igor@sysoev.ru>
parents:
1354
diff
changeset
|
153 static timer_t event_timer = (timer_t) -1; |
|
6021
117c77b22db1
Events: implemented eventport notification mechanism.
Ruslan Ermilov <ru@nginx.com>
parents:
6018
diff
changeset
|
154 static ngx_event_t notify_event; |
| 719 | 155 |
| 156 static ngx_str_t eventport_name = ngx_string("eventport"); | |
| 157 | |
| 158 | |
| 159 static ngx_command_t ngx_eventport_commands[] = { | |
| 160 | |
| 161 { ngx_string("eventport_events"), | |
| 162 NGX_EVENT_CONF|NGX_CONF_TAKE1, | |
| 163 ngx_conf_set_num_slot, | |
| 164 0, | |
| 165 offsetof(ngx_eventport_conf_t, events), | |
| 166 NULL }, | |
| 167 | |
| 168 ngx_null_command | |
| 169 }; | |
| 170 | |
| 171 | |
| 172 ngx_event_module_t ngx_eventport_module_ctx = { | |
| 173 &eventport_name, | |
| 174 ngx_eventport_create_conf, /* create configuration */ | |
| 175 ngx_eventport_init_conf, /* init configuration */ | |
| 176 | |
| 177 { | |
| 178 ngx_eventport_add_event, /* add an event */ | |
| 179 ngx_eventport_del_event, /* delete an event */ | |
| 180 ngx_eventport_add_event, /* enable an event */ | |
| 181 ngx_eventport_del_event, /* disable an event */ | |
| 182 NULL, /* add an connection */ | |
| 183 NULL, /* delete an connection */ | |
|
6021
117c77b22db1
Events: implemented eventport notification mechanism.
Ruslan Ermilov <ru@nginx.com>
parents:
6018
diff
changeset
|
184 ngx_eventport_notify, /* trigger a notify */ |
| 719 | 185 NULL, /* process the changes */ |
| 186 ngx_eventport_process_events, /* process the events */ | |
| 187 ngx_eventport_init, /* init the events */ | |
| 188 ngx_eventport_done, /* done the events */ | |
| 189 } | |
| 190 | |
| 191 }; | |
| 192 | |
| 193 ngx_module_t ngx_eventport_module = { | |
| 194 NGX_MODULE_V1, | |
| 195 &ngx_eventport_module_ctx, /* module context */ | |
| 196 ngx_eventport_commands, /* module directives */ | |
| 197 NGX_EVENT_MODULE, /* module type */ | |
| 198 NULL, /* init master */ | |
| 199 NULL, /* init module */ | |
| 200 NULL, /* init process */ | |
| 201 NULL, /* init thread */ | |
| 202 NULL, /* exit thread */ | |
| 203 NULL, /* exit process */ | |
| 204 NULL, /* exit master */ | |
| 205 NGX_MODULE_V1_PADDING | |
| 206 }; | |
| 207 | |
| 208 | |
| 209 static ngx_int_t | |
| 210 ngx_eventport_init(ngx_cycle_t *cycle, ngx_msec_t timer) | |
| 211 { | |
| 212 port_notify_t pn; | |
| 213 struct itimerspec its; | |
| 214 struct sigevent sev; | |
| 215 ngx_eventport_conf_t *epcf; | |
| 216 | |
| 217 epcf = ngx_event_get_conf(cycle->conf_ctx, ngx_eventport_module); | |
| 218 | |
| 219 if (ep == -1) { | |
| 220 ep = port_create(); | |
| 221 | |
| 222 if (ep == -1) { | |
| 223 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno, | |
| 224 "port_create() failed"); | |
| 225 return NGX_ERROR; | |
| 226 } | |
|
6021
117c77b22db1
Events: implemented eventport notification mechanism.
Ruslan Ermilov <ru@nginx.com>
parents:
6018
diff
changeset
|
227 |
|
117c77b22db1
Events: implemented eventport notification mechanism.
Ruslan Ermilov <ru@nginx.com>
parents:
6018
diff
changeset
|
228 notify_event.active = 1; |
|
117c77b22db1
Events: implemented eventport notification mechanism.
Ruslan Ermilov <ru@nginx.com>
parents:
6018
diff
changeset
|
229 notify_event.log = cycle->log; |
| 719 | 230 } |
| 231 | |
| 232 if (nevents < epcf->events) { | |
| 233 if (event_list) { | |
| 234 ngx_free(event_list); | |
| 235 } | |
| 236 | |
| 237 event_list = ngx_alloc(sizeof(port_event_t) * epcf->events, | |
| 238 cycle->log); | |
| 239 if (event_list == NULL) { | |
| 240 return NGX_ERROR; | |
| 241 } | |
| 242 } | |
| 243 | |
| 244 ngx_event_flags = NGX_USE_EVENTPORT_EVENT; | |
| 245 | |
| 246 if (timer) { | |
| 247 ngx_memzero(&pn, sizeof(port_notify_t)); | |
| 248 pn.portnfy_port = ep; | |
| 249 | |
| 250 ngx_memzero(&sev, sizeof(struct sigevent)); | |
| 251 sev.sigev_notify = SIGEV_PORT; | |
| 252 #if !(NGX_TEST_BUILD_EVENTPORT) | |
| 253 sev.sigev_value.sival_ptr = &pn; | |
| 254 #endif | |
| 255 | |
| 256 if (timer_create(CLOCK_REALTIME, &sev, &event_timer) == -1) { | |
| 257 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno, | |
| 258 "timer_create() failed"); | |
| 259 return NGX_ERROR; | |
| 260 } | |
| 261 | |
| 262 its.it_interval.tv_sec = timer / 1000; | |
| 263 its.it_interval.tv_nsec = (timer % 1000) * 1000000; | |
| 264 its.it_value.tv_sec = timer / 1000; | |
| 265 its.it_value.tv_nsec = (timer % 1000) * 1000000; | |
| 266 | |
| 267 if (timer_settime(event_timer, 0, &its, NULL) == -1) { | |
| 268 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno, | |
| 269 "timer_settime() failed"); | |
| 270 return NGX_ERROR; | |
| 271 } | |
| 272 | |
| 273 ngx_event_flags |= NGX_USE_TIMER_EVENT; | |
| 274 } | |
| 275 | |
| 276 nevents = epcf->events; | |
| 277 | |
| 278 ngx_io = ngx_os_io; | |
| 279 | |
| 280 ngx_event_actions = ngx_eventport_module_ctx.actions; | |
| 281 | |
| 282 return NGX_OK; | |
| 283 } | |
| 284 | |
| 285 | |
| 286 static void | |
| 287 ngx_eventport_done(ngx_cycle_t *cycle) | |
| 288 { | |
|
1870
a62fb6c156c5
fix building --test-build-rtsig and --test-build-eventport on FreeBSD 7
Igor Sysoev <igor@sysoev.ru>
parents:
1354
diff
changeset
|
289 if (event_timer != (timer_t) -1) { |
| 719 | 290 if (timer_delete(event_timer) == -1) { |
| 291 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
| 292 "timer_delete() failed"); | |
| 293 } | |
| 294 | |
|
1870
a62fb6c156c5
fix building --test-build-rtsig and --test-build-eventport on FreeBSD 7
Igor Sysoev <igor@sysoev.ru>
parents:
1354
diff
changeset
|
295 event_timer = (timer_t) -1; |
| 719 | 296 } |
| 297 | |
| 298 if (close(ep) == -1) { | |
| 299 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
| 300 "close() event port failed"); | |
| 301 } | |
| 302 | |
| 303 ep = -1; | |
| 304 | |
| 305 ngx_free(event_list); | |
| 306 | |
| 307 event_list = NULL; | |
| 308 nevents = 0; | |
| 309 } | |
| 310 | |
| 311 | |
| 312 static ngx_int_t | |
|
1354
f69d1aab6a0f
make 64-bit ngx_int_t on 64-bit platforms
Igor Sysoev <igor@sysoev.ru>
parents:
1287
diff
changeset
|
313 ngx_eventport_add_event(ngx_event_t *ev, ngx_int_t event, ngx_uint_t flags) |
| 719 | 314 { |
|
1354
f69d1aab6a0f
make 64-bit ngx_int_t on 64-bit platforms
Igor Sysoev <igor@sysoev.ru>
parents:
1287
diff
changeset
|
315 ngx_int_t events, prev; |
| 719 | 316 ngx_event_t *e; |
| 317 ngx_connection_t *c; | |
| 318 | |
| 319 c = ev->data; | |
| 320 | |
| 321 events = event; | |
| 322 | |
| 323 if (event == NGX_READ_EVENT) { | |
| 324 e = c->write; | |
| 325 prev = POLLOUT; | |
| 326 #if (NGX_READ_EVENT != POLLIN) | |
| 327 events = POLLIN; | |
| 328 #endif | |
| 329 | |
| 330 } else { | |
| 331 e = c->read; | |
| 332 prev = POLLIN; | |
| 333 #if (NGX_WRITE_EVENT != POLLOUT) | |
| 334 events = POLLOUT; | |
| 335 #endif | |
| 336 } | |
| 337 | |
| 338 if (e->oneshot) { | |
| 339 events |= prev; | |
| 340 } | |
| 341 | |
| 342 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ev->log, 0, | |
|
1354
f69d1aab6a0f
make 64-bit ngx_int_t on 64-bit platforms
Igor Sysoev <igor@sysoev.ru>
parents:
1287
diff
changeset
|
343 "eventport add event: fd:%d ev:%04Xi", c->fd, events); |
| 719 | 344 |
| 345 if (port_associate(ep, PORT_SOURCE_FD, c->fd, events, | |
| 346 (void *) ((uintptr_t) ev | ev->instance)) | |
| 347 == -1) | |
| 348 { | |
| 349 ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_errno, | |
| 350 "port_associate() failed"); | |
| 351 return NGX_ERROR; | |
| 352 } | |
| 353 | |
| 354 ev->active = 1; | |
| 355 ev->oneshot = 1; | |
| 356 | |
| 357 return NGX_OK; | |
| 358 } | |
| 359 | |
| 360 | |
| 361 static ngx_int_t | |
|
1354
f69d1aab6a0f
make 64-bit ngx_int_t on 64-bit platforms
Igor Sysoev <igor@sysoev.ru>
parents:
1287
diff
changeset
|
362 ngx_eventport_del_event(ngx_event_t *ev, ngx_int_t event, ngx_uint_t flags) |
| 719 | 363 { |
| 364 ngx_event_t *e; | |
| 365 ngx_connection_t *c; | |
| 366 | |
| 367 /* | |
| 368 * when the file descriptor is closed, the event port automatically | |
|
4572
67653855682e
Fixed spelling in multiline C comments.
Ruslan Ermilov <ru@nginx.com>
parents:
4412
diff
changeset
|
369 * dissociates it from the port, so we do not need to dissociate explicitly |
| 719 | 370 * the event before the closing the file descriptor |
| 371 */ | |
| 372 | |
| 373 if (flags & NGX_CLOSE_EVENT) { | |
| 374 ev->active = 0; | |
| 375 ev->oneshot = 0; | |
| 376 return NGX_OK; | |
| 377 } | |
| 378 | |
| 379 c = ev->data; | |
| 380 | |
| 381 if (event == NGX_READ_EVENT) { | |
| 382 e = c->write; | |
| 383 event = POLLOUT; | |
| 384 | |
| 385 } else { | |
| 386 e = c->read; | |
| 387 event = POLLIN; | |
| 388 } | |
| 389 | |
| 390 if (e->oneshot) { | |
| 391 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ev->log, 0, | |
|
1354
f69d1aab6a0f
make 64-bit ngx_int_t on 64-bit platforms
Igor Sysoev <igor@sysoev.ru>
parents:
1287
diff
changeset
|
392 "eventport change event: fd:%d ev:%04Xi", c->fd, event); |
| 719 | 393 |
| 394 if (port_associate(ep, PORT_SOURCE_FD, c->fd, event, | |
| 395 (void *) ((uintptr_t) ev | ev->instance)) | |
| 396 == -1) | |
| 397 { | |
| 398 ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_errno, | |
| 399 "port_associate() failed"); | |
| 400 return NGX_ERROR; | |
| 401 } | |
| 402 | |
| 403 } else { | |
| 404 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, ev->log, 0, | |
| 405 "eventport del event: fd:%d", c->fd); | |
| 406 | |
| 407 if (port_dissociate(ep, PORT_SOURCE_FD, c->fd) == -1) { | |
| 408 ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_errno, | |
| 409 "port_dissociate() failed"); | |
| 410 return NGX_ERROR; | |
| 411 } | |
| 412 } | |
| 413 | |
| 414 ev->active = 0; | |
| 415 ev->oneshot = 0; | |
| 416 | |
| 417 return NGX_OK; | |
| 418 } | |
| 419 | |
| 420 | |
|
6021
117c77b22db1
Events: implemented eventport notification mechanism.
Ruslan Ermilov <ru@nginx.com>
parents:
6018
diff
changeset
|
421 static ngx_int_t |
|
117c77b22db1
Events: implemented eventport notification mechanism.
Ruslan Ermilov <ru@nginx.com>
parents:
6018
diff
changeset
|
422 ngx_eventport_notify(ngx_event_handler_pt handler) |
|
117c77b22db1
Events: implemented eventport notification mechanism.
Ruslan Ermilov <ru@nginx.com>
parents:
6018
diff
changeset
|
423 { |
|
117c77b22db1
Events: implemented eventport notification mechanism.
Ruslan Ermilov <ru@nginx.com>
parents:
6018
diff
changeset
|
424 notify_event.handler = handler; |
|
117c77b22db1
Events: implemented eventport notification mechanism.
Ruslan Ermilov <ru@nginx.com>
parents:
6018
diff
changeset
|
425 |
|
117c77b22db1
Events: implemented eventport notification mechanism.
Ruslan Ermilov <ru@nginx.com>
parents:
6018
diff
changeset
|
426 if (port_send(ep, 0, ¬ify_event) != 0) { |
|
117c77b22db1
Events: implemented eventport notification mechanism.
Ruslan Ermilov <ru@nginx.com>
parents:
6018
diff
changeset
|
427 ngx_log_error(NGX_LOG_ALERT, notify_event.log, ngx_errno, |
|
117c77b22db1
Events: implemented eventport notification mechanism.
Ruslan Ermilov <ru@nginx.com>
parents:
6018
diff
changeset
|
428 "port_send() failed"); |
|
117c77b22db1
Events: implemented eventport notification mechanism.
Ruslan Ermilov <ru@nginx.com>
parents:
6018
diff
changeset
|
429 return NGX_ERROR; |
|
117c77b22db1
Events: implemented eventport notification mechanism.
Ruslan Ermilov <ru@nginx.com>
parents:
6018
diff
changeset
|
430 } |
|
117c77b22db1
Events: implemented eventport notification mechanism.
Ruslan Ermilov <ru@nginx.com>
parents:
6018
diff
changeset
|
431 |
|
117c77b22db1
Events: implemented eventport notification mechanism.
Ruslan Ermilov <ru@nginx.com>
parents:
6018
diff
changeset
|
432 return NGX_OK; |
|
117c77b22db1
Events: implemented eventport notification mechanism.
Ruslan Ermilov <ru@nginx.com>
parents:
6018
diff
changeset
|
433 } |
|
117c77b22db1
Events: implemented eventport notification mechanism.
Ruslan Ermilov <ru@nginx.com>
parents:
6018
diff
changeset
|
434 |
|
117c77b22db1
Events: implemented eventport notification mechanism.
Ruslan Ermilov <ru@nginx.com>
parents:
6018
diff
changeset
|
435 |
| 719 | 436 ngx_int_t |
| 437 ngx_eventport_process_events(ngx_cycle_t *cycle, ngx_msec_t timer, | |
| 438 ngx_uint_t flags) | |
| 439 { | |
| 440 int n, revents; | |
| 441 u_int events; | |
| 442 ngx_err_t err; | |
| 443 ngx_int_t instance; | |
| 444 ngx_uint_t i, level; | |
|
5821
3f5f0ab59b35
Events: processing of posted events changed from LIFO to FIFO.
Valentin Bartenev <vbart@nginx.com>
parents:
5820
diff
changeset
|
445 ngx_event_t *ev, *rev, *wev; |
|
3f5f0ab59b35
Events: processing of posted events changed from LIFO to FIFO.
Valentin Bartenev <vbart@nginx.com>
parents:
5820
diff
changeset
|
446 ngx_queue_t *queue; |
| 719 | 447 ngx_connection_t *c; |
| 448 struct timespec ts, *tp; | |
| 449 | |
| 450 if (timer == NGX_TIMER_INFINITE) { | |
| 451 tp = NULL; | |
| 452 | |
| 453 } else { | |
| 454 ts.tv_sec = timer / 1000; | |
| 455 ts.tv_nsec = (timer % 1000) * 1000000; | |
| 456 tp = &ts; | |
| 457 } | |
| 458 | |
| 459 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0, | |
| 460 "eventport timer: %M", timer); | |
| 461 | |
| 462 events = 1; | |
| 463 | |
|
1354
f69d1aab6a0f
make 64-bit ngx_int_t on 64-bit platforms
Igor Sysoev <igor@sysoev.ru>
parents:
1287
diff
changeset
|
464 n = port_getn(ep, event_list, (u_int) nevents, &events, tp); |
| 719 | 465 |
| 466 err = ngx_errno; | |
| 467 | |
| 468 if (flags & NGX_UPDATE_TIME) { | |
|
3475
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
469 ngx_time_update(); |
| 719 | 470 } |
| 471 | |
| 472 if (n == -1) { | |
| 473 if (err == ETIME) { | |
| 474 if (timer != NGX_TIMER_INFINITE) { | |
| 475 return NGX_OK; | |
| 476 } | |
| 477 | |
| 478 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, | |
| 479 "port_getn() returned no events without timeout"); | |
| 480 return NGX_ERROR; | |
| 481 } | |
| 482 | |
| 483 level = (err == NGX_EINTR) ? NGX_LOG_INFO : NGX_LOG_ALERT; | |
| 484 ngx_log_error(level, cycle->log, err, "port_getn() failed"); | |
| 485 return NGX_ERROR; | |
| 486 } | |
| 487 | |
| 488 if (events == 0) { | |
| 489 if (timer != NGX_TIMER_INFINITE) { | |
| 490 return NGX_OK; | |
| 491 } | |
| 492 | |
| 493 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, | |
| 494 "port_getn() returned no events without timeout"); | |
| 495 return NGX_ERROR; | |
| 496 } | |
| 497 | |
| 498 for (i = 0; i < events; i++) { | |
| 499 | |
| 500 if (event_list[i].portev_source == PORT_SOURCE_TIMER) { | |
|
3475
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
501 ngx_time_update(); |
| 719 | 502 continue; |
| 503 } | |
| 504 | |
| 505 ev = event_list[i].portev_user; | |
| 506 | |
| 507 switch (event_list[i].portev_source) { | |
| 508 | |
| 509 case PORT_SOURCE_FD: | |
| 510 | |
| 511 instance = (uintptr_t) ev & 1; | |
| 512 ev = (ngx_event_t *) ((uintptr_t) ev & (uintptr_t) ~1); | |
| 513 | |
| 514 if (ev->closed || ev->instance != instance) { | |
| 515 | |
| 516 /* | |
| 517 * the stale event from a file descriptor | |
| 518 * that was just closed in this iteration | |
| 519 */ | |
| 520 | |
| 521 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0, | |
| 522 "eventport: stale event %p", ev); | |
| 523 continue; | |
| 524 } | |
| 525 | |
| 526 revents = event_list[i].portev_events; | |
| 527 | |
| 528 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, cycle->log, 0, | |
| 529 "eventport: fd:%d, ev:%04Xd", | |
| 530 event_list[i].portev_object, revents); | |
| 531 | |
| 532 if (revents & (POLLERR|POLLHUP|POLLNVAL)) { | |
|
1128
06479b01caff
decrease log level from alert to debug for POLLERR|POLLHUP|POLLNVAL
Igor Sysoev <igor@sysoev.ru>
parents:
929
diff
changeset
|
533 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, cycle->log, 0, |
|
06479b01caff
decrease log level from alert to debug for POLLERR|POLLHUP|POLLNVAL
Igor Sysoev <igor@sysoev.ru>
parents:
929
diff
changeset
|
534 "port_getn() error fd:%d ev:%04Xd", |
|
06479b01caff
decrease log level from alert to debug for POLLERR|POLLHUP|POLLNVAL
Igor Sysoev <igor@sysoev.ru>
parents:
929
diff
changeset
|
535 event_list[i].portev_object, revents); |
| 719 | 536 } |
| 537 | |
| 538 if (revents & ~(POLLIN|POLLOUT|POLLERR|POLLHUP|POLLNVAL)) { | |
| 539 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, | |
| 540 "strange port_getn() events fd:%d ev:%04Xd", | |
| 541 event_list[i].portev_object, revents); | |
| 542 } | |
| 543 | |
| 544 if ((revents & (POLLERR|POLLHUP|POLLNVAL)) | |
| 545 && (revents & (POLLIN|POLLOUT)) == 0) | |
| 546 { | |
| 547 /* | |
| 548 * if the error events were returned without POLLIN or POLLOUT, | |
| 549 * then add these flags to handle the events at least in one | |
| 550 * active handler | |
| 551 */ | |
| 552 | |
| 553 revents |= POLLIN|POLLOUT; | |
| 554 } | |
| 555 | |
| 556 c = ev->data; | |
| 557 rev = c->read; | |
| 558 wev = c->write; | |
| 559 | |
| 560 rev->active = 0; | |
| 561 wev->active = 0; | |
| 562 | |
| 563 if (revents & POLLIN) { | |
|
5820
3377f9459e99
Events: removed broken thread support from posted events.
Valentin Bartenev <vbart@nginx.com>
parents:
5175
diff
changeset
|
564 rev->ready = 1; |
| 719 | 565 |
| 566 if (flags & NGX_POST_EVENTS) { | |
|
5820
3377f9459e99
Events: removed broken thread support from posted events.
Valentin Bartenev <vbart@nginx.com>
parents:
5175
diff
changeset
|
567 queue = rev->accept ? &ngx_posted_accept_events |
|
3377f9459e99
Events: removed broken thread support from posted events.
Valentin Bartenev <vbart@nginx.com>
parents:
5175
diff
changeset
|
568 : &ngx_posted_events; |
| 719 | 569 |
|
5820
3377f9459e99
Events: removed broken thread support from posted events.
Valentin Bartenev <vbart@nginx.com>
parents:
5175
diff
changeset
|
570 ngx_post_event(rev, queue); |
| 719 | 571 |
| 572 } else { | |
| 573 rev->handler(rev); | |
|
1287
3dd9883fa121
fix segfault when event port returns POLLERR without POLLIN or POLLOUT
Igor Sysoev <igor@sysoev.ru>
parents:
1128
diff
changeset
|
574 |
|
5170
6362bd26e4b0
Events: protection from stale events in eventport and devpoll.
Valentin Bartenev <vbart@nginx.com>
parents:
4759
diff
changeset
|
575 if (ev->closed || ev->instance != instance) { |
|
1287
3dd9883fa121
fix segfault when event port returns POLLERR without POLLIN or POLLOUT
Igor Sysoev <igor@sysoev.ru>
parents:
1128
diff
changeset
|
576 continue; |
|
3dd9883fa121
fix segfault when event port returns POLLERR without POLLIN or POLLOUT
Igor Sysoev <igor@sysoev.ru>
parents:
1128
diff
changeset
|
577 } |
| 719 | 578 } |
| 579 | |
| 580 if (rev->accept) { | |
| 581 if (ngx_use_accept_mutex) { | |
| 582 ngx_accept_events = 1; | |
| 583 continue; | |
| 584 } | |
| 585 | |
| 586 if (port_associate(ep, PORT_SOURCE_FD, c->fd, POLLIN, | |
| 587 (void *) ((uintptr_t) ev | ev->instance)) | |
| 588 == -1) | |
| 589 { | |
| 590 ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_errno, | |
| 591 "port_associate() failed"); | |
| 592 return NGX_ERROR; | |
| 593 } | |
| 594 } | |
| 595 } | |
| 596 | |
| 597 if (revents & POLLOUT) { | |
|
5820
3377f9459e99
Events: removed broken thread support from posted events.
Valentin Bartenev <vbart@nginx.com>
parents:
5175
diff
changeset
|
598 wev->ready = 1; |
| 719 | 599 |
| 600 if (flags & NGX_POST_EVENTS) { | |
|
5820
3377f9459e99
Events: removed broken thread support from posted events.
Valentin Bartenev <vbart@nginx.com>
parents:
5175
diff
changeset
|
601 ngx_post_event(wev, &ngx_posted_events); |
| 719 | 602 |
| 603 } else { | |
| 604 wev->handler(wev); | |
| 605 } | |
| 606 } | |
| 607 | |
| 608 continue; | |
| 609 | |
|
6021
117c77b22db1
Events: implemented eventport notification mechanism.
Ruslan Ermilov <ru@nginx.com>
parents:
6018
diff
changeset
|
610 case PORT_SOURCE_USER: |
|
117c77b22db1
Events: implemented eventport notification mechanism.
Ruslan Ermilov <ru@nginx.com>
parents:
6018
diff
changeset
|
611 |
|
117c77b22db1
Events: implemented eventport notification mechanism.
Ruslan Ermilov <ru@nginx.com>
parents:
6018
diff
changeset
|
612 ev->handler(ev); |
|
117c77b22db1
Events: implemented eventport notification mechanism.
Ruslan Ermilov <ru@nginx.com>
parents:
6018
diff
changeset
|
613 |
|
117c77b22db1
Events: implemented eventport notification mechanism.
Ruslan Ermilov <ru@nginx.com>
parents:
6018
diff
changeset
|
614 continue; |
|
117c77b22db1
Events: implemented eventport notification mechanism.
Ruslan Ermilov <ru@nginx.com>
parents:
6018
diff
changeset
|
615 |
| 719 | 616 default: |
| 617 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, | |
|
6005
d84f0abd4a53
Events: fixed typo in the error message.
Ruslan Ermilov <ru@nginx.com>
parents:
5821
diff
changeset
|
618 "unexpected eventport object %d", |
| 719 | 619 event_list[i].portev_object); |
| 620 continue; | |
| 621 } | |
| 622 } | |
| 623 | |
| 624 return NGX_OK; | |
| 625 } | |
| 626 | |
| 627 | |
| 628 static void * | |
| 629 ngx_eventport_create_conf(ngx_cycle_t *cycle) | |
| 630 { | |
| 631 ngx_eventport_conf_t *epcf; | |
| 632 | |
| 633 epcf = ngx_palloc(cycle->pool, sizeof(ngx_eventport_conf_t)); | |
| 634 if (epcf == NULL) { | |
|
2912
c7d57b539248
return NULL instead of NGX_CONF_ERROR on a create conf failure
Igor Sysoev <igor@sysoev.ru>
parents:
1939
diff
changeset
|
635 return NULL; |
| 719 | 636 } |
| 637 | |
| 638 epcf->events = NGX_CONF_UNSET; | |
| 639 | |
| 640 return epcf; | |
| 641 } | |
| 642 | |
| 643 | |
| 644 static char * | |
| 645 ngx_eventport_init_conf(ngx_cycle_t *cycle, void *conf) | |
| 646 { | |
| 647 ngx_eventport_conf_t *epcf = conf; | |
| 648 | |
| 649 ngx_conf_init_uint_value(epcf->events, 32); | |
| 650 | |
| 651 return NGX_CONF_OK; | |
| 652 } |