Mercurial > hg > nginx
comparison src/event/modules/ngx_devpoll_module.c @ 245:e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
author | Igor Sysoev <igor@sysoev.ru> |
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date | Thu, 29 Jan 2004 21:45:01 +0000 |
parents | bf2faf694c19 |
children | 6753e8cdaa2c |
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244:187dc0a3197d | 245:e6c005b66b3a |
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104 size_t n; | 104 size_t n; |
105 ngx_devpoll_conf_t *dpcf; | 105 ngx_devpoll_conf_t *dpcf; |
106 | 106 |
107 dpcf = ngx_event_get_conf(cycle->conf_ctx, ngx_devpoll_module); | 107 dpcf = ngx_event_get_conf(cycle->conf_ctx, ngx_devpoll_module); |
108 | 108 |
109 ngx_log_debug(cycle->log, "CH: %d" _ dpcf->changes); | |
110 ngx_log_debug(cycle->log, "EV: %d" _ dpcf->events); | |
111 | |
112 if (dp == -1) { | 109 if (dp == -1) { |
113 dp = open("/dev/poll", O_RDWR); | 110 dp = open("/dev/poll", O_RDWR); |
114 | 111 |
115 if (dp == -1) { | 112 if (dp == -1) { |
116 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno, | 113 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno, |
120 } | 117 } |
121 | 118 |
122 if (max_changes < dpcf->changes) { | 119 if (max_changes < dpcf->changes) { |
123 if (nchanges) { | 120 if (nchanges) { |
124 n = nchanges * sizeof(struct pollfd); | 121 n = nchanges * sizeof(struct pollfd); |
125 if ((size_t) write(dp, change_list, n) != n) { | 122 if (write(dp, change_list, n) != (ssize_t) n) { |
126 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | 123 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, |
127 "write(/dev/poll) failed"); | 124 "write(/dev/poll) failed"); |
128 return NGX_ERROR; | 125 return NGX_ERROR; |
129 } | 126 } |
130 | 127 |
197 } | 194 } |
198 | 195 |
199 | 196 |
200 static int ngx_devpoll_add_event(ngx_event_t *ev, int event, u_int flags) | 197 static int ngx_devpoll_add_event(ngx_event_t *ev, int event, u_int flags) |
201 { | 198 { |
202 #if (NGX_DEBUG_EVENT) | 199 #if (NGX_DEBUG) |
203 ngx_connection_t *c = (ngx_connection_t *) ev->data; | 200 ngx_connection_t *c; |
204 #endif | 201 #endif |
205 | 202 |
206 #if (NGX_READ_EVENT != POLLIN) | 203 #if (NGX_READ_EVENT != POLLIN) |
207 if (event == NGX_READ_EVENT) { | 204 if (event == NGX_READ_EVENT) { |
208 event = POLLOUT; | 205 event = POLLOUT; |
211 event = POLLIN; | 208 event = POLLIN; |
212 #endif | 209 #endif |
213 } | 210 } |
214 #endif | 211 #endif |
215 | 212 |
216 #if (NGX_DEBUG_EVENT) | 213 #if (NGX_DEBUG) |
217 c = (ngx_connection_t *) ev->data; | 214 c = ev->data; |
218 ngx_log_debug(ev->log, "add event: %d:%d" _ c->fd _ event); | 215 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ev->log, 0, |
216 "devpoll add event: fd:%d ev:%04X", c->fd, event); | |
219 #endif | 217 #endif |
220 | 218 |
221 ev->active = 1; | 219 ev->active = 1; |
222 return ngx_devpoll_set_event(ev, event, 0); | 220 return ngx_devpoll_set_event(ev, event, 0); |
223 } | 221 } |
228 ngx_event_t *e; | 226 ngx_event_t *e; |
229 ngx_connection_t *c; | 227 ngx_connection_t *c; |
230 | 228 |
231 c = ev->data; | 229 c = ev->data; |
232 | 230 |
233 #if (NGX_DEBUG_EVENT) | 231 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ev->log, 0, |
234 ngx_log_debug(c->log, "del event: %d, %d" _ c->fd _ event); | 232 "devpoll del event: fd:%d ev:%04X", c->fd, event); |
235 #endif | |
236 | 233 |
237 if (ngx_devpoll_set_event(ev, POLLREMOVE, flags) == NGX_ERROR) { | 234 if (ngx_devpoll_set_event(ev, POLLREMOVE, flags) == NGX_ERROR) { |
238 return NGX_ERROR; | 235 return NGX_ERROR; |
239 } | 236 } |
240 | 237 |
268 size_t n; | 265 size_t n; |
269 ngx_connection_t *c; | 266 ngx_connection_t *c; |
270 | 267 |
271 c = ev->data; | 268 c = ev->data; |
272 | 269 |
273 #if (NGX_DEBUG_EVENT) | 270 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, ev->log, 0, |
274 ngx_log_debug(ev->log, "devpoll fd:%d event:%d flush:%d" _ | 271 "devpoll fd:%d ev:%d fl:%d", c->fd, event, flags); |
275 c->fd _ event _ flags); | |
276 #endif | |
277 | 272 |
278 if (nchanges >= max_changes) { | 273 if (nchanges >= max_changes) { |
279 ngx_log_error(NGX_LOG_WARN, ev->log, 0, | 274 ngx_log_error(NGX_LOG_WARN, ev->log, 0, |
280 "/dev/pool change list is filled up"); | 275 "/dev/pool change list is filled up"); |
281 | 276 |
282 n = nchanges * sizeof(struct pollfd); | 277 n = nchanges * sizeof(struct pollfd); |
283 if ((size_t) write(dp, change_list, n) != n) { | 278 if (write(dp, change_list, n) != (ssize_t) n) { |
284 ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_errno, | 279 ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_errno, |
285 "write(/dev/poll) failed"); | 280 "write(/dev/poll) failed"); |
286 return NGX_ERROR; | 281 return NGX_ERROR; |
287 } | 282 } |
288 | 283 |
298 | 293 |
299 nchanges++; | 294 nchanges++; |
300 | 295 |
301 if (flags & NGX_CLOSE_EVENT) { | 296 if (flags & NGX_CLOSE_EVENT) { |
302 n = nchanges * sizeof(struct pollfd); | 297 n = nchanges * sizeof(struct pollfd); |
303 if ((size_t) write(dp, change_list, n) != n) { | 298 if (write(dp, change_list, n) != (ssize_t) n) { |
304 ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_errno, | 299 ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_errno, |
305 "write(/dev/poll) failed"); | 300 "write(/dev/poll) failed"); |
306 return NGX_ERROR; | 301 return NGX_ERROR; |
307 } | 302 } |
308 | 303 |
318 int events, i, j; | 313 int events, i, j; |
319 size_t n; | 314 size_t n; |
320 ngx_msec_t timer; | 315 ngx_msec_t timer; |
321 ngx_err_t err; | 316 ngx_err_t err; |
322 ngx_cycle_t **cycle; | 317 ngx_cycle_t **cycle; |
323 ngx_epoch_msec_t delta; | |
324 ngx_connection_t *c; | 318 ngx_connection_t *c; |
319 ngx_epoch_msec_t delta; | |
325 struct dvpoll dvp; | 320 struct dvpoll dvp; |
326 struct timeval tv; | 321 struct timeval tv; |
327 | 322 |
328 timer = ngx_event_find_timer(); | 323 timer = ngx_event_find_timer(); |
329 | 324 ngx_old_elapsed_msec = ngx_elapsed_msec; |
330 if (timer) { | 325 |
331 ngx_gettimeofday(&tv); | 326 if (timer == 0) { |
332 delta = tv.tv_sec * 1000 + tv.tv_usec / 1000; | |
333 | |
334 } else { | |
335 timer = (ngx_msec_t) INFTIM; | 327 timer = (ngx_msec_t) INFTIM; |
336 delta = 0; | 328 } |
337 } | 329 |
338 | 330 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, log, 0, "devpoll timer: %d", timer); |
339 #if (NGX_DEBUG_EVENT) | |
340 ngx_log_debug(log, "devpoll timer: %d" _ timer); | |
341 #endif | |
342 | 331 |
343 if (nchanges) { | 332 if (nchanges) { |
344 n = nchanges * sizeof(struct pollfd); | 333 n = nchanges * sizeof(struct pollfd); |
345 if ((size_t) write(dp, change_list, n) != n) { | 334 if (write(dp, change_list, n) != (ssize_t) n) { |
346 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, | 335 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, |
347 "write(/dev/poll) failed"); | 336 "write(/dev/poll) failed"); |
348 return NGX_ERROR; | 337 return NGX_ERROR; |
349 } | 338 } |
350 } | 339 } |
361 } | 350 } |
362 | 351 |
363 nchanges = 0; | 352 nchanges = 0; |
364 | 353 |
365 ngx_gettimeofday(&tv); | 354 ngx_gettimeofday(&tv); |
366 | 355 ngx_time_update(tv.tv_sec); |
367 if (ngx_cached_time != tv.tv_sec) { | 356 |
368 ngx_cached_time = tv.tv_sec; | 357 delta = ngx_elapsed_msec; |
369 ngx_time_update(); | 358 ngx_elapsed_msec = tv.tv_sec * 1000 + tv.tv_usec / 1000 - ngx_start_msec; |
370 } | |
371 | 359 |
372 if ((int) timer != INFTIM) { | 360 if ((int) timer != INFTIM) { |
373 delta = tv.tv_sec * 1000 + tv.tv_usec / 1000 - delta; | 361 delta = ngx_elapsed_msec - delta; |
374 | 362 |
375 #if (NGX_DEBUG_EVENT) | 363 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, log, 0, |
376 ngx_log_debug(log, "devpoll timer: %d, delta: %d" _ timer _ (int)delta); | 364 "devpoll timer: %d, delta: %d", timer, (int) delta); |
377 #endif | |
378 ngx_event_expire_timers((ngx_msec_t) delta); | |
379 | |
380 } else { | 365 } else { |
381 if (events == 0) { | 366 if (events == 0) { |
382 ngx_log_error(NGX_LOG_ALERT, log, 0, | 367 ngx_log_error(NGX_LOG_ALERT, log, 0, |
383 "ioctl(DP_POLL) returned no events without timeout"); | 368 "ioctl(DP_POLL) returned no events without timeout"); |
384 return NGX_ERROR; | 369 return NGX_ERROR; |
385 } | 370 } |
386 | |
387 #if (NGX_DEBUG_EVENT) | |
388 ngx_log_debug(log, "devpoll timer: %d, delta: %d" _ timer _ (int)delta); | |
389 #endif | |
390 } | 371 } |
391 | 372 |
392 if (err) { | 373 if (err) { |
393 ngx_log_error(NGX_LOG_ALERT, log, err, "ioctl(DP_POLL) failed"); | 374 ngx_log_error((err == NGX_EINTR) ? NGX_LOG_INFO : NGX_LOG_ALERT, |
375 log, err, "ioctl(DP_POLL) failed"); | |
394 return NGX_ERROR; | 376 return NGX_ERROR; |
395 } | 377 } |
396 | 378 |
397 for (i = 0; i < events; i++) { | 379 for (i = 0; i < events; i++) { |
398 c = &ngx_cycle->connections[event_list[i].fd]; | 380 c = &ngx_cycle->connections[event_list[i].fd]; |
409 } | 391 } |
410 } | 392 } |
411 } | 393 } |
412 | 394 |
413 if (c->fd == -1) { | 395 if (c->fd == -1) { |
414 ngx_log_error(NGX_LOG_ALERT, log, 0, "unkonwn cycle"); | 396 ngx_log_error(NGX_LOG_EMERG, log, 0, "unknown cycle"); |
415 exit(1); | 397 exit(1); |
416 } | 398 } |
417 | 399 |
418 #if (NGX_DEBUG_EVENT) | 400 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, log, 0, |
419 ngx_log_debug(log, "devpoll: %d: ev:%d rev:%d" _ | 401 "devpoll: fd:%d, ev:%04X, rev:%04X", |
420 event_list[i].fd _ | 402 event_list[i].fd, |
421 event_list[i].events _ event_list[i].revents); | 403 event_list[i].events, event_list[i].revents); |
422 #endif | |
423 | 404 |
424 if (event_list[i].revents & POLLIN) { | 405 if (event_list[i].revents & POLLIN) { |
425 if (!c->read->active) { | 406 if (!c->read->active) { |
426 continue; | 407 continue; |
427 } | 408 } |
449 "ioctl(DP_POLL) error on %d:%d", | 430 "ioctl(DP_POLL) error on %d:%d", |
450 event_list[i].fd, event_list[i].revents); | 431 event_list[i].fd, event_list[i].revents); |
451 } | 432 } |
452 } | 433 } |
453 | 434 |
435 if (timer != (ngx_msec_t) INFTIM && delta) { | |
436 ngx_event_expire_timers((ngx_msec_t) delta); | |
437 } | |
438 | |
454 return NGX_OK; | 439 return NGX_OK; |
455 } | 440 } |
456 | 441 |
457 | 442 |
458 static void *ngx_devpoll_create_conf(ngx_cycle_t *cycle) | 443 static void *ngx_devpoll_create_conf(ngx_cycle_t *cycle) |