… | |
… | |
32 | #ifdef __cplusplus |
32 | #ifdef __cplusplus |
33 | extern "C" { |
33 | extern "C" { |
34 | #endif |
34 | #endif |
35 | |
35 | |
36 | #ifndef EV_STANDALONE |
36 | #ifndef EV_STANDALONE |
|
|
37 | # ifdef EV_CONFIG_H |
|
|
38 | # include EV_CONFIG_H |
|
|
39 | # else |
37 | # include "config.h" |
40 | # include "config.h" |
|
|
41 | # endif |
38 | |
42 | |
39 | # if HAVE_CLOCK_GETTIME |
43 | # if HAVE_CLOCK_GETTIME |
40 | # ifndef EV_USE_MONOTONIC |
44 | # ifndef EV_USE_MONOTONIC |
41 | # define EV_USE_MONOTONIC 1 |
45 | # define EV_USE_MONOTONIC 1 |
42 | # endif |
46 | # endif |
… | |
… | |
90 | # else |
94 | # else |
91 | # define EV_USE_PORT 0 |
95 | # define EV_USE_PORT 0 |
92 | # endif |
96 | # endif |
93 | # endif |
97 | # endif |
94 | |
98 | |
|
|
99 | # ifndef EV_USE_INOTIFY |
|
|
100 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
|
|
101 | # define EV_USE_INOTIFY 1 |
|
|
102 | # else |
|
|
103 | # define EV_USE_INOTIFY 0 |
|
|
104 | # endif |
|
|
105 | # endif |
|
|
106 | |
95 | #endif |
107 | #endif |
96 | |
108 | |
97 | #include <math.h> |
109 | #include <math.h> |
98 | #include <stdlib.h> |
110 | #include <stdlib.h> |
99 | #include <fcntl.h> |
111 | #include <fcntl.h> |
… | |
… | |
106 | #include <sys/types.h> |
118 | #include <sys/types.h> |
107 | #include <time.h> |
119 | #include <time.h> |
108 | |
120 | |
109 | #include <signal.h> |
121 | #include <signal.h> |
110 | |
122 | |
|
|
123 | #ifdef EV_H |
|
|
124 | # include EV_H |
|
|
125 | #else |
|
|
126 | # include "ev.h" |
|
|
127 | #endif |
|
|
128 | |
111 | #ifndef _WIN32 |
129 | #ifndef _WIN32 |
112 | # include <unistd.h> |
|
|
113 | # include <sys/time.h> |
130 | # include <sys/time.h> |
114 | # include <sys/wait.h> |
131 | # include <sys/wait.h> |
|
|
132 | # include <unistd.h> |
115 | #else |
133 | #else |
116 | # define WIN32_LEAN_AND_MEAN |
134 | # define WIN32_LEAN_AND_MEAN |
117 | # include <windows.h> |
135 | # include <windows.h> |
118 | # ifndef EV_SELECT_IS_WINSOCKET |
136 | # ifndef EV_SELECT_IS_WINSOCKET |
119 | # define EV_SELECT_IS_WINSOCKET 1 |
137 | # define EV_SELECT_IS_WINSOCKET 1 |
… | |
… | |
152 | |
170 | |
153 | #ifndef EV_USE_PORT |
171 | #ifndef EV_USE_PORT |
154 | # define EV_USE_PORT 0 |
172 | # define EV_USE_PORT 0 |
155 | #endif |
173 | #endif |
156 | |
174 | |
|
|
175 | #ifndef EV_USE_INOTIFY |
|
|
176 | # define EV_USE_INOTIFY 0 |
|
|
177 | #endif |
|
|
178 | |
|
|
179 | #ifndef EV_PID_HASHSIZE |
|
|
180 | # if EV_MINIMAL |
|
|
181 | # define EV_PID_HASHSIZE 1 |
|
|
182 | # else |
|
|
183 | # define EV_PID_HASHSIZE 16 |
|
|
184 | # endif |
|
|
185 | #endif |
|
|
186 | |
|
|
187 | #ifndef EV_INOTIFY_HASHSIZE |
|
|
188 | # if EV_MINIMAL |
|
|
189 | # define EV_INOTIFY_HASHSIZE 1 |
|
|
190 | # else |
|
|
191 | # define EV_INOTIFY_HASHSIZE 16 |
|
|
192 | # endif |
|
|
193 | #endif |
|
|
194 | |
157 | /**/ |
195 | /**/ |
158 | |
196 | |
159 | #ifndef CLOCK_MONOTONIC |
197 | #ifndef CLOCK_MONOTONIC |
160 | # undef EV_USE_MONOTONIC |
198 | # undef EV_USE_MONOTONIC |
161 | # define EV_USE_MONOTONIC 0 |
199 | # define EV_USE_MONOTONIC 0 |
… | |
… | |
168 | |
206 | |
169 | #if EV_SELECT_IS_WINSOCKET |
207 | #if EV_SELECT_IS_WINSOCKET |
170 | # include <winsock.h> |
208 | # include <winsock.h> |
171 | #endif |
209 | #endif |
172 | |
210 | |
|
|
211 | #if !EV_STAT_ENABLE |
|
|
212 | # define EV_USE_INOTIFY 0 |
|
|
213 | #endif |
|
|
214 | |
|
|
215 | #if EV_USE_INOTIFY |
|
|
216 | # include <sys/inotify.h> |
|
|
217 | #endif |
|
|
218 | |
173 | /**/ |
219 | /**/ |
|
|
220 | |
|
|
221 | /* |
|
|
222 | * This is used to avoid floating point rounding problems. |
|
|
223 | * It is added to ev_rt_now when scheduling periodics |
|
|
224 | * to ensure progress, time-wise, even when rounding |
|
|
225 | * errors are against us. |
|
|
226 | * This value is good at least till the year 4000 |
|
|
227 | * and intervals up to 20 years. |
|
|
228 | * Better solutions welcome. |
|
|
229 | */ |
|
|
230 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
174 | |
231 | |
175 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
232 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
176 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
233 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
177 | #define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */ |
|
|
178 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds */ |
234 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
179 | |
|
|
180 | #ifdef EV_H |
|
|
181 | # include EV_H |
|
|
182 | #else |
|
|
183 | # include "ev.h" |
|
|
184 | #endif |
|
|
185 | |
235 | |
186 | #if __GNUC__ >= 3 |
236 | #if __GNUC__ >= 3 |
187 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
237 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
188 | # define inline static inline |
238 | # define noinline __attribute__ ((noinline)) |
189 | #else |
239 | #else |
190 | # define expect(expr,value) (expr) |
240 | # define expect(expr,value) (expr) |
191 | # define inline static |
241 | # define noinline |
|
|
242 | # if __STDC_VERSION__ < 199901L |
|
|
243 | # define inline |
|
|
244 | # endif |
192 | #endif |
245 | #endif |
193 | |
246 | |
194 | #define expect_false(expr) expect ((expr) != 0, 0) |
247 | #define expect_false(expr) expect ((expr) != 0, 0) |
195 | #define expect_true(expr) expect ((expr) != 0, 1) |
248 | #define expect_true(expr) expect ((expr) != 0, 1) |
|
|
249 | #define inline_size static inline |
|
|
250 | |
|
|
251 | #if EV_MINIMAL |
|
|
252 | # define inline_speed static noinline |
|
|
253 | #else |
|
|
254 | # define inline_speed static inline |
|
|
255 | #endif |
196 | |
256 | |
197 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
257 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
198 | #define ABSPRI(w) ((w)->priority - EV_MINPRI) |
258 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
199 | |
259 | |
200 | #define EMPTY0 /* required for microsofts broken pseudo-c compiler */ |
260 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
201 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
261 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
202 | |
262 | |
203 | typedef struct ev_watcher *W; |
263 | typedef ev_watcher *W; |
204 | typedef struct ev_watcher_list *WL; |
264 | typedef ev_watcher_list *WL; |
205 | typedef struct ev_watcher_time *WT; |
265 | typedef ev_watcher_time *WT; |
206 | |
266 | |
207 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
267 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
208 | |
268 | |
209 | #ifdef _WIN32 |
269 | #ifdef _WIN32 |
210 | # include "ev_win32.c" |
270 | # include "ev_win32.c" |
… | |
… | |
212 | |
272 | |
213 | /*****************************************************************************/ |
273 | /*****************************************************************************/ |
214 | |
274 | |
215 | static void (*syserr_cb)(const char *msg); |
275 | static void (*syserr_cb)(const char *msg); |
216 | |
276 | |
|
|
277 | void |
217 | void ev_set_syserr_cb (void (*cb)(const char *msg)) |
278 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
218 | { |
279 | { |
219 | syserr_cb = cb; |
280 | syserr_cb = cb; |
220 | } |
281 | } |
221 | |
282 | |
222 | static void |
283 | static void noinline |
223 | syserr (const char *msg) |
284 | syserr (const char *msg) |
224 | { |
285 | { |
225 | if (!msg) |
286 | if (!msg) |
226 | msg = "(libev) system error"; |
287 | msg = "(libev) system error"; |
227 | |
288 | |
… | |
… | |
234 | } |
295 | } |
235 | } |
296 | } |
236 | |
297 | |
237 | static void *(*alloc)(void *ptr, long size); |
298 | static void *(*alloc)(void *ptr, long size); |
238 | |
299 | |
|
|
300 | void |
239 | void ev_set_allocator (void *(*cb)(void *ptr, long size)) |
301 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
240 | { |
302 | { |
241 | alloc = cb; |
303 | alloc = cb; |
242 | } |
304 | } |
243 | |
305 | |
244 | static void * |
306 | inline_speed void * |
245 | ev_realloc (void *ptr, long size) |
307 | ev_realloc (void *ptr, long size) |
246 | { |
308 | { |
247 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
309 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
248 | |
310 | |
249 | if (!ptr && size) |
311 | if (!ptr && size) |
… | |
… | |
273 | typedef struct |
335 | typedef struct |
274 | { |
336 | { |
275 | W w; |
337 | W w; |
276 | int events; |
338 | int events; |
277 | } ANPENDING; |
339 | } ANPENDING; |
|
|
340 | |
|
|
341 | #if EV_USE_INOTIFY |
|
|
342 | typedef struct |
|
|
343 | { |
|
|
344 | WL head; |
|
|
345 | } ANFS; |
|
|
346 | #endif |
278 | |
347 | |
279 | #if EV_MULTIPLICITY |
348 | #if EV_MULTIPLICITY |
280 | |
349 | |
281 | struct ev_loop |
350 | struct ev_loop |
282 | { |
351 | { |
… | |
… | |
316 | gettimeofday (&tv, 0); |
385 | gettimeofday (&tv, 0); |
317 | return tv.tv_sec + tv.tv_usec * 1e-6; |
386 | return tv.tv_sec + tv.tv_usec * 1e-6; |
318 | #endif |
387 | #endif |
319 | } |
388 | } |
320 | |
389 | |
321 | inline ev_tstamp |
390 | ev_tstamp inline_size |
322 | get_clock (void) |
391 | get_clock (void) |
323 | { |
392 | { |
324 | #if EV_USE_MONOTONIC |
393 | #if EV_USE_MONOTONIC |
325 | if (expect_true (have_monotonic)) |
394 | if (expect_true (have_monotonic)) |
326 | { |
395 | { |
… | |
… | |
339 | { |
408 | { |
340 | return ev_rt_now; |
409 | return ev_rt_now; |
341 | } |
410 | } |
342 | #endif |
411 | #endif |
343 | |
412 | |
344 | #define array_roundsize(type,n) (((n) | 4) & ~3) |
413 | int inline_size |
|
|
414 | array_nextsize (int elem, int cur, int cnt) |
|
|
415 | { |
|
|
416 | int ncur = cur + 1; |
|
|
417 | |
|
|
418 | do |
|
|
419 | ncur <<= 1; |
|
|
420 | while (cnt > ncur); |
|
|
421 | |
|
|
422 | /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */ |
|
|
423 | if (elem * ncur > 4096) |
|
|
424 | { |
|
|
425 | ncur *= elem; |
|
|
426 | ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095; |
|
|
427 | ncur = ncur - sizeof (void *) * 4; |
|
|
428 | ncur /= elem; |
|
|
429 | } |
|
|
430 | |
|
|
431 | return ncur; |
|
|
432 | } |
|
|
433 | |
|
|
434 | static noinline void * |
|
|
435 | array_realloc (int elem, void *base, int *cur, int cnt) |
|
|
436 | { |
|
|
437 | *cur = array_nextsize (elem, *cur, cnt); |
|
|
438 | return ev_realloc (base, elem * *cur); |
|
|
439 | } |
345 | |
440 | |
346 | #define array_needsize(type,base,cur,cnt,init) \ |
441 | #define array_needsize(type,base,cur,cnt,init) \ |
347 | if (expect_false ((cnt) > cur)) \ |
442 | if (expect_false ((cnt) > (cur))) \ |
348 | { \ |
443 | { \ |
349 | int newcnt = cur; \ |
444 | int ocur_ = (cur); \ |
350 | do \ |
445 | (base) = (type *)array_realloc \ |
351 | { \ |
446 | (sizeof (type), (base), &(cur), (cnt)); \ |
352 | newcnt = array_roundsize (type, newcnt << 1); \ |
447 | init ((base) + (ocur_), (cur) - ocur_); \ |
353 | } \ |
|
|
354 | while ((cnt) > newcnt); \ |
|
|
355 | \ |
|
|
356 | base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\ |
|
|
357 | init (base + cur, newcnt - cur); \ |
|
|
358 | cur = newcnt; \ |
|
|
359 | } |
448 | } |
360 | |
449 | |
|
|
450 | #if 0 |
361 | #define array_slim(type,stem) \ |
451 | #define array_slim(type,stem) \ |
362 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
452 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
363 | { \ |
453 | { \ |
364 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
454 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
365 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
455 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
366 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
456 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
367 | } |
457 | } |
|
|
458 | #endif |
368 | |
459 | |
369 | #define array_free(stem, idx) \ |
460 | #define array_free(stem, idx) \ |
370 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
461 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
371 | |
462 | |
372 | /*****************************************************************************/ |
463 | /*****************************************************************************/ |
373 | |
464 | |
374 | static void |
465 | void noinline |
|
|
466 | ev_feed_event (EV_P_ void *w, int revents) |
|
|
467 | { |
|
|
468 | W w_ = (W)w; |
|
|
469 | int pri = ABSPRI (w_); |
|
|
470 | |
|
|
471 | if (expect_false (w_->pending)) |
|
|
472 | pendings [pri][w_->pending - 1].events |= revents; |
|
|
473 | else |
|
|
474 | { |
|
|
475 | w_->pending = ++pendingcnt [pri]; |
|
|
476 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
|
|
477 | pendings [pri][w_->pending - 1].w = w_; |
|
|
478 | pendings [pri][w_->pending - 1].events = revents; |
|
|
479 | } |
|
|
480 | } |
|
|
481 | |
|
|
482 | void inline_size |
|
|
483 | queue_events (EV_P_ W *events, int eventcnt, int type) |
|
|
484 | { |
|
|
485 | int i; |
|
|
486 | |
|
|
487 | for (i = 0; i < eventcnt; ++i) |
|
|
488 | ev_feed_event (EV_A_ events [i], type); |
|
|
489 | } |
|
|
490 | |
|
|
491 | /*****************************************************************************/ |
|
|
492 | |
|
|
493 | void inline_size |
375 | anfds_init (ANFD *base, int count) |
494 | anfds_init (ANFD *base, int count) |
376 | { |
495 | { |
377 | while (count--) |
496 | while (count--) |
378 | { |
497 | { |
379 | base->head = 0; |
498 | base->head = 0; |
… | |
… | |
382 | |
501 | |
383 | ++base; |
502 | ++base; |
384 | } |
503 | } |
385 | } |
504 | } |
386 | |
505 | |
387 | void |
506 | void inline_speed |
388 | ev_feed_event (EV_P_ void *w, int revents) |
|
|
389 | { |
|
|
390 | W w_ = (W)w; |
|
|
391 | |
|
|
392 | if (expect_false (w_->pending)) |
|
|
393 | { |
|
|
394 | pendings [ABSPRI (w_)][w_->pending - 1].events |= revents; |
|
|
395 | return; |
|
|
396 | } |
|
|
397 | |
|
|
398 | w_->pending = ++pendingcnt [ABSPRI (w_)]; |
|
|
399 | array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2); |
|
|
400 | pendings [ABSPRI (w_)][w_->pending - 1].w = w_; |
|
|
401 | pendings [ABSPRI (w_)][w_->pending - 1].events = revents; |
|
|
402 | } |
|
|
403 | |
|
|
404 | static void |
|
|
405 | queue_events (EV_P_ W *events, int eventcnt, int type) |
|
|
406 | { |
|
|
407 | int i; |
|
|
408 | |
|
|
409 | for (i = 0; i < eventcnt; ++i) |
|
|
410 | ev_feed_event (EV_A_ events [i], type); |
|
|
411 | } |
|
|
412 | |
|
|
413 | inline void |
|
|
414 | fd_event (EV_P_ int fd, int revents) |
507 | fd_event (EV_P_ int fd, int revents) |
415 | { |
508 | { |
416 | ANFD *anfd = anfds + fd; |
509 | ANFD *anfd = anfds + fd; |
417 | struct ev_io *w; |
510 | ev_io *w; |
418 | |
511 | |
419 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
512 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
420 | { |
513 | { |
421 | int ev = w->events & revents; |
514 | int ev = w->events & revents; |
422 | |
515 | |
423 | if (ev) |
516 | if (ev) |
424 | ev_feed_event (EV_A_ (W)w, ev); |
517 | ev_feed_event (EV_A_ (W)w, ev); |
… | |
… | |
426 | } |
519 | } |
427 | |
520 | |
428 | void |
521 | void |
429 | ev_feed_fd_event (EV_P_ int fd, int revents) |
522 | ev_feed_fd_event (EV_P_ int fd, int revents) |
430 | { |
523 | { |
|
|
524 | if (fd >= 0 && fd < anfdmax) |
431 | fd_event (EV_A_ fd, revents); |
525 | fd_event (EV_A_ fd, revents); |
432 | } |
526 | } |
433 | |
527 | |
434 | /*****************************************************************************/ |
528 | void inline_size |
435 | |
|
|
436 | inline void |
|
|
437 | fd_reify (EV_P) |
529 | fd_reify (EV_P) |
438 | { |
530 | { |
439 | int i; |
531 | int i; |
440 | |
532 | |
441 | for (i = 0; i < fdchangecnt; ++i) |
533 | for (i = 0; i < fdchangecnt; ++i) |
442 | { |
534 | { |
443 | int fd = fdchanges [i]; |
535 | int fd = fdchanges [i]; |
444 | ANFD *anfd = anfds + fd; |
536 | ANFD *anfd = anfds + fd; |
445 | struct ev_io *w; |
537 | ev_io *w; |
446 | |
538 | |
447 | int events = 0; |
539 | int events = 0; |
448 | |
540 | |
449 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
541 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
450 | events |= w->events; |
542 | events |= w->events; |
451 | |
543 | |
452 | #if EV_SELECT_IS_WINSOCKET |
544 | #if EV_SELECT_IS_WINSOCKET |
453 | if (events) |
545 | if (events) |
454 | { |
546 | { |
… | |
… | |
458 | } |
550 | } |
459 | #endif |
551 | #endif |
460 | |
552 | |
461 | anfd->reify = 0; |
553 | anfd->reify = 0; |
462 | |
554 | |
463 | method_modify (EV_A_ fd, anfd->events, events); |
555 | backend_modify (EV_A_ fd, anfd->events, events); |
464 | anfd->events = events; |
556 | anfd->events = events; |
465 | } |
557 | } |
466 | |
558 | |
467 | fdchangecnt = 0; |
559 | fdchangecnt = 0; |
468 | } |
560 | } |
469 | |
561 | |
470 | static void |
562 | void inline_size |
471 | fd_change (EV_P_ int fd) |
563 | fd_change (EV_P_ int fd) |
472 | { |
564 | { |
473 | if (expect_false (anfds [fd].reify)) |
565 | if (expect_false (anfds [fd].reify)) |
474 | return; |
566 | return; |
475 | |
567 | |
… | |
… | |
478 | ++fdchangecnt; |
570 | ++fdchangecnt; |
479 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
571 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
480 | fdchanges [fdchangecnt - 1] = fd; |
572 | fdchanges [fdchangecnt - 1] = fd; |
481 | } |
573 | } |
482 | |
574 | |
483 | static void |
575 | void inline_speed |
484 | fd_kill (EV_P_ int fd) |
576 | fd_kill (EV_P_ int fd) |
485 | { |
577 | { |
486 | struct ev_io *w; |
578 | ev_io *w; |
487 | |
579 | |
488 | while ((w = (struct ev_io *)anfds [fd].head)) |
580 | while ((w = (ev_io *)anfds [fd].head)) |
489 | { |
581 | { |
490 | ev_io_stop (EV_A_ w); |
582 | ev_io_stop (EV_A_ w); |
491 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
583 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
492 | } |
584 | } |
493 | } |
585 | } |
494 | |
586 | |
495 | inline int |
587 | int inline_size |
496 | fd_valid (int fd) |
588 | fd_valid (int fd) |
497 | { |
589 | { |
498 | #ifdef _WIN32 |
590 | #ifdef _WIN32 |
499 | return _get_osfhandle (fd) != -1; |
591 | return _get_osfhandle (fd) != -1; |
500 | #else |
592 | #else |
501 | return fcntl (fd, F_GETFD) != -1; |
593 | return fcntl (fd, F_GETFD) != -1; |
502 | #endif |
594 | #endif |
503 | } |
595 | } |
504 | |
596 | |
505 | /* called on EBADF to verify fds */ |
597 | /* called on EBADF to verify fds */ |
506 | static void |
598 | static void noinline |
507 | fd_ebadf (EV_P) |
599 | fd_ebadf (EV_P) |
508 | { |
600 | { |
509 | int fd; |
601 | int fd; |
510 | |
602 | |
511 | for (fd = 0; fd < anfdmax; ++fd) |
603 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
513 | if (!fd_valid (fd) == -1 && errno == EBADF) |
605 | if (!fd_valid (fd) == -1 && errno == EBADF) |
514 | fd_kill (EV_A_ fd); |
606 | fd_kill (EV_A_ fd); |
515 | } |
607 | } |
516 | |
608 | |
517 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
609 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
518 | static void |
610 | static void noinline |
519 | fd_enomem (EV_P) |
611 | fd_enomem (EV_P) |
520 | { |
612 | { |
521 | int fd; |
613 | int fd; |
522 | |
614 | |
523 | for (fd = anfdmax; fd--; ) |
615 | for (fd = anfdmax; fd--; ) |
… | |
… | |
526 | fd_kill (EV_A_ fd); |
618 | fd_kill (EV_A_ fd); |
527 | return; |
619 | return; |
528 | } |
620 | } |
529 | } |
621 | } |
530 | |
622 | |
531 | /* usually called after fork if method needs to re-arm all fds from scratch */ |
623 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
532 | static void |
624 | static void noinline |
533 | fd_rearm_all (EV_P) |
625 | fd_rearm_all (EV_P) |
534 | { |
626 | { |
535 | int fd; |
627 | int fd; |
536 | |
628 | |
537 | /* this should be highly optimised to not do anything but set a flag */ |
|
|
538 | for (fd = 0; fd < anfdmax; ++fd) |
629 | for (fd = 0; fd < anfdmax; ++fd) |
539 | if (anfds [fd].events) |
630 | if (anfds [fd].events) |
540 | { |
631 | { |
541 | anfds [fd].events = 0; |
632 | anfds [fd].events = 0; |
542 | fd_change (EV_A_ fd); |
633 | fd_change (EV_A_ fd); |
543 | } |
634 | } |
544 | } |
635 | } |
545 | |
636 | |
546 | /*****************************************************************************/ |
637 | /*****************************************************************************/ |
547 | |
638 | |
548 | static void |
639 | void inline_speed |
549 | upheap (WT *heap, int k) |
640 | upheap (WT *heap, int k) |
550 | { |
641 | { |
551 | WT w = heap [k]; |
642 | WT w = heap [k]; |
552 | |
643 | |
553 | while (k && heap [k >> 1]->at > w->at) |
644 | while (k && heap [k >> 1]->at > w->at) |
… | |
… | |
560 | heap [k] = w; |
651 | heap [k] = w; |
561 | ((W)heap [k])->active = k + 1; |
652 | ((W)heap [k])->active = k + 1; |
562 | |
653 | |
563 | } |
654 | } |
564 | |
655 | |
565 | static void |
656 | void inline_speed |
566 | downheap (WT *heap, int N, int k) |
657 | downheap (WT *heap, int N, int k) |
567 | { |
658 | { |
568 | WT w = heap [k]; |
659 | WT w = heap [k]; |
569 | |
660 | |
570 | while (k < (N >> 1)) |
661 | while (k < (N >> 1)) |
… | |
… | |
584 | |
675 | |
585 | heap [k] = w; |
676 | heap [k] = w; |
586 | ((W)heap [k])->active = k + 1; |
677 | ((W)heap [k])->active = k + 1; |
587 | } |
678 | } |
588 | |
679 | |
589 | inline void |
680 | void inline_size |
590 | adjustheap (WT *heap, int N, int k) |
681 | adjustheap (WT *heap, int N, int k) |
591 | { |
682 | { |
592 | upheap (heap, k); |
683 | upheap (heap, k); |
593 | downheap (heap, N, k); |
684 | downheap (heap, N, k); |
594 | } |
685 | } |
… | |
… | |
604 | static ANSIG *signals; |
695 | static ANSIG *signals; |
605 | static int signalmax; |
696 | static int signalmax; |
606 | |
697 | |
607 | static int sigpipe [2]; |
698 | static int sigpipe [2]; |
608 | static sig_atomic_t volatile gotsig; |
699 | static sig_atomic_t volatile gotsig; |
609 | static struct ev_io sigev; |
700 | static ev_io sigev; |
610 | |
701 | |
611 | static void |
702 | void inline_size |
612 | signals_init (ANSIG *base, int count) |
703 | signals_init (ANSIG *base, int count) |
613 | { |
704 | { |
614 | while (count--) |
705 | while (count--) |
615 | { |
706 | { |
616 | base->head = 0; |
707 | base->head = 0; |
… | |
… | |
636 | write (sigpipe [1], &signum, 1); |
727 | write (sigpipe [1], &signum, 1); |
637 | errno = old_errno; |
728 | errno = old_errno; |
638 | } |
729 | } |
639 | } |
730 | } |
640 | |
731 | |
641 | void |
732 | void noinline |
642 | ev_feed_signal_event (EV_P_ int signum) |
733 | ev_feed_signal_event (EV_P_ int signum) |
643 | { |
734 | { |
644 | WL w; |
735 | WL w; |
645 | |
736 | |
646 | #if EV_MULTIPLICITY |
737 | #if EV_MULTIPLICITY |
… | |
… | |
657 | for (w = signals [signum].head; w; w = w->next) |
748 | for (w = signals [signum].head; w; w = w->next) |
658 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
749 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
659 | } |
750 | } |
660 | |
751 | |
661 | static void |
752 | static void |
662 | sigcb (EV_P_ struct ev_io *iow, int revents) |
753 | sigcb (EV_P_ ev_io *iow, int revents) |
663 | { |
754 | { |
664 | int signum; |
755 | int signum; |
665 | |
756 | |
666 | read (sigpipe [0], &revents, 1); |
757 | read (sigpipe [0], &revents, 1); |
667 | gotsig = 0; |
758 | gotsig = 0; |
… | |
… | |
669 | for (signum = signalmax; signum--; ) |
760 | for (signum = signalmax; signum--; ) |
670 | if (signals [signum].gotsig) |
761 | if (signals [signum].gotsig) |
671 | ev_feed_signal_event (EV_A_ signum + 1); |
762 | ev_feed_signal_event (EV_A_ signum + 1); |
672 | } |
763 | } |
673 | |
764 | |
674 | static void |
765 | void inline_speed |
675 | fd_intern (int fd) |
766 | fd_intern (int fd) |
676 | { |
767 | { |
677 | #ifdef _WIN32 |
768 | #ifdef _WIN32 |
678 | int arg = 1; |
769 | int arg = 1; |
679 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
770 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
… | |
… | |
681 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
772 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
682 | fcntl (fd, F_SETFL, O_NONBLOCK); |
773 | fcntl (fd, F_SETFL, O_NONBLOCK); |
683 | #endif |
774 | #endif |
684 | } |
775 | } |
685 | |
776 | |
686 | static void |
777 | static void noinline |
687 | siginit (EV_P) |
778 | siginit (EV_P) |
688 | { |
779 | { |
689 | fd_intern (sigpipe [0]); |
780 | fd_intern (sigpipe [0]); |
690 | fd_intern (sigpipe [1]); |
781 | fd_intern (sigpipe [1]); |
691 | |
782 | |
… | |
… | |
694 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
785 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
695 | } |
786 | } |
696 | |
787 | |
697 | /*****************************************************************************/ |
788 | /*****************************************************************************/ |
698 | |
789 | |
699 | static struct ev_child *childs [PID_HASHSIZE]; |
790 | static ev_child *childs [EV_PID_HASHSIZE]; |
700 | |
791 | |
701 | #ifndef _WIN32 |
792 | #ifndef _WIN32 |
702 | |
793 | |
703 | static struct ev_signal childev; |
794 | static ev_signal childev; |
|
|
795 | |
|
|
796 | void inline_speed |
|
|
797 | child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) |
|
|
798 | { |
|
|
799 | ev_child *w; |
|
|
800 | |
|
|
801 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
802 | if (w->pid == pid || !w->pid) |
|
|
803 | { |
|
|
804 | ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */ |
|
|
805 | w->rpid = pid; |
|
|
806 | w->rstatus = status; |
|
|
807 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
|
|
808 | } |
|
|
809 | } |
704 | |
810 | |
705 | #ifndef WCONTINUED |
811 | #ifndef WCONTINUED |
706 | # define WCONTINUED 0 |
812 | # define WCONTINUED 0 |
707 | #endif |
813 | #endif |
708 | |
814 | |
709 | static void |
815 | static void |
710 | child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status) |
|
|
711 | { |
|
|
712 | struct ev_child *w; |
|
|
713 | |
|
|
714 | for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next) |
|
|
715 | if (w->pid == pid || !w->pid) |
|
|
716 | { |
|
|
717 | ev_priority (w) = ev_priority (sw); /* need to do it *now* */ |
|
|
718 | w->rpid = pid; |
|
|
719 | w->rstatus = status; |
|
|
720 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
|
|
721 | } |
|
|
722 | } |
|
|
723 | |
|
|
724 | static void |
|
|
725 | childcb (EV_P_ struct ev_signal *sw, int revents) |
816 | childcb (EV_P_ ev_signal *sw, int revents) |
726 | { |
817 | { |
727 | int pid, status; |
818 | int pid, status; |
728 | |
819 | |
|
|
820 | /* some systems define WCONTINUED but then fail to support it (linux 2.4) */ |
729 | if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
821 | if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
730 | { |
822 | if (!WCONTINUED |
|
|
823 | || errno != EINVAL |
|
|
824 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
|
|
825 | return; |
|
|
826 | |
731 | /* make sure we are called again until all childs have been reaped */ |
827 | /* make sure we are called again until all childs have been reaped */ |
|
|
828 | /* we need to do it this way so that the callback gets called before we continue */ |
732 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
829 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
733 | |
830 | |
734 | child_reap (EV_A_ sw, pid, pid, status); |
831 | child_reap (EV_A_ sw, pid, pid, status); |
|
|
832 | if (EV_PID_HASHSIZE > 1) |
735 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ |
833 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
736 | } |
|
|
737 | } |
834 | } |
738 | |
835 | |
739 | #endif |
836 | #endif |
740 | |
837 | |
741 | /*****************************************************************************/ |
838 | /*****************************************************************************/ |
… | |
… | |
767 | { |
864 | { |
768 | return EV_VERSION_MINOR; |
865 | return EV_VERSION_MINOR; |
769 | } |
866 | } |
770 | |
867 | |
771 | /* return true if we are running with elevated privileges and should ignore env variables */ |
868 | /* return true if we are running with elevated privileges and should ignore env variables */ |
772 | static int |
869 | int inline_size |
773 | enable_secure (void) |
870 | enable_secure (void) |
774 | { |
871 | { |
775 | #ifdef _WIN32 |
872 | #ifdef _WIN32 |
776 | return 0; |
873 | return 0; |
777 | #else |
874 | #else |
… | |
… | |
781 | } |
878 | } |
782 | |
879 | |
783 | unsigned int |
880 | unsigned int |
784 | ev_supported_backends (void) |
881 | ev_supported_backends (void) |
785 | { |
882 | { |
786 | } |
|
|
787 | |
|
|
788 | unsigned int |
|
|
789 | ev_recommended_backends (void) |
|
|
790 | { |
|
|
791 | unsigned int flags; |
883 | unsigned int flags = 0; |
792 | |
884 | |
793 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
885 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
794 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
886 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
795 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
887 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
796 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
888 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
… | |
… | |
798 | |
890 | |
799 | return flags; |
891 | return flags; |
800 | } |
892 | } |
801 | |
893 | |
802 | unsigned int |
894 | unsigned int |
803 | ev_backend (EV_P) |
895 | ev_recommended_backends (void) |
804 | { |
896 | { |
805 | unsigned int flags = ev_recommended_backends (); |
897 | unsigned int flags = ev_supported_backends (); |
806 | |
898 | |
807 | #ifndef __NetBSD__ |
899 | #ifndef __NetBSD__ |
808 | /* kqueue is borked on everything but netbsd apparently */ |
900 | /* kqueue is borked on everything but netbsd apparently */ |
809 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
901 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
810 | flags &= ~EVBACKEND_KQUEUE; |
902 | flags &= ~EVBACKEND_KQUEUE; |
… | |
… | |
815 | #endif |
907 | #endif |
816 | |
908 | |
817 | return flags; |
909 | return flags; |
818 | } |
910 | } |
819 | |
911 | |
820 | static void |
912 | unsigned int |
|
|
913 | ev_embeddable_backends (void) |
|
|
914 | { |
|
|
915 | return EVBACKEND_EPOLL |
|
|
916 | | EVBACKEND_KQUEUE |
|
|
917 | | EVBACKEND_PORT; |
|
|
918 | } |
|
|
919 | |
|
|
920 | unsigned int |
|
|
921 | ev_backend (EV_P) |
|
|
922 | { |
|
|
923 | return backend; |
|
|
924 | } |
|
|
925 | |
|
|
926 | unsigned int |
|
|
927 | ev_loop_count (EV_P) |
|
|
928 | { |
|
|
929 | return loop_count; |
|
|
930 | } |
|
|
931 | |
|
|
932 | static void noinline |
821 | loop_init (EV_P_ unsigned int flags) |
933 | loop_init (EV_P_ unsigned int flags) |
822 | { |
934 | { |
823 | if (!method) |
935 | if (!backend) |
824 | { |
936 | { |
825 | #if EV_USE_MONOTONIC |
937 | #if EV_USE_MONOTONIC |
826 | { |
938 | { |
827 | struct timespec ts; |
939 | struct timespec ts; |
828 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
940 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
… | |
… | |
833 | ev_rt_now = ev_time (); |
945 | ev_rt_now = ev_time (); |
834 | mn_now = get_clock (); |
946 | mn_now = get_clock (); |
835 | now_floor = mn_now; |
947 | now_floor = mn_now; |
836 | rtmn_diff = ev_rt_now - mn_now; |
948 | rtmn_diff = ev_rt_now - mn_now; |
837 | |
949 | |
|
|
950 | /* pid check not overridable via env */ |
|
|
951 | #ifndef _WIN32 |
|
|
952 | if (flags & EVFLAG_FORKCHECK) |
|
|
953 | curpid = getpid (); |
|
|
954 | #endif |
|
|
955 | |
838 | if (!(flags & EVFLAG_NOENV) |
956 | if (!(flags & EVFLAG_NOENV) |
839 | && !enable_secure () |
957 | && !enable_secure () |
840 | && getenv ("LIBEV_FLAGS")) |
958 | && getenv ("LIBEV_FLAGS")) |
841 | flags = atoi (getenv ("LIBEV_FLAGS")); |
959 | flags = atoi (getenv ("LIBEV_FLAGS")); |
842 | |
960 | |
843 | if (!(flags & 0x0000ffffUL)) |
961 | if (!(flags & 0x0000ffffUL)) |
844 | flags |= ev_recommended_backends (); |
962 | flags |= ev_recommended_backends (); |
845 | |
963 | |
846 | method = 0; |
964 | backend = 0; |
|
|
965 | backend_fd = -1; |
|
|
966 | #if EV_USE_INOTIFY |
|
|
967 | fs_fd = -2; |
|
|
968 | #endif |
|
|
969 | |
847 | #if EV_USE_PORT |
970 | #if EV_USE_PORT |
848 | if (!method && (flags & EVBACKEND_PORT )) method = port_init (EV_A_ flags); |
971 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
849 | #endif |
972 | #endif |
850 | #if EV_USE_KQUEUE |
973 | #if EV_USE_KQUEUE |
851 | if (!method && (flags & EVBACKEND_KQUEUE)) method = kqueue_init (EV_A_ flags); |
974 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
852 | #endif |
975 | #endif |
853 | #if EV_USE_EPOLL |
976 | #if EV_USE_EPOLL |
854 | if (!method && (flags & EVBACKEND_EPOLL )) method = epoll_init (EV_A_ flags); |
977 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
855 | #endif |
978 | #endif |
856 | #if EV_USE_POLL |
979 | #if EV_USE_POLL |
857 | if (!method && (flags & EVBACKEND_POLL )) method = poll_init (EV_A_ flags); |
980 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
858 | #endif |
981 | #endif |
859 | #if EV_USE_SELECT |
982 | #if EV_USE_SELECT |
860 | if (!method && (flags & EVBACKEND_SELECT)) method = select_init (EV_A_ flags); |
983 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
861 | #endif |
984 | #endif |
862 | |
985 | |
863 | ev_init (&sigev, sigcb); |
986 | ev_init (&sigev, sigcb); |
864 | ev_set_priority (&sigev, EV_MAXPRI); |
987 | ev_set_priority (&sigev, EV_MAXPRI); |
865 | } |
988 | } |
866 | } |
989 | } |
867 | |
990 | |
868 | static void |
991 | static void noinline |
869 | loop_destroy (EV_P) |
992 | loop_destroy (EV_P) |
870 | { |
993 | { |
871 | int i; |
994 | int i; |
872 | |
995 | |
|
|
996 | #if EV_USE_INOTIFY |
|
|
997 | if (fs_fd >= 0) |
|
|
998 | close (fs_fd); |
|
|
999 | #endif |
|
|
1000 | |
|
|
1001 | if (backend_fd >= 0) |
|
|
1002 | close (backend_fd); |
|
|
1003 | |
873 | #if EV_USE_PORT |
1004 | #if EV_USE_PORT |
874 | if (method == EVBACKEND_PORT ) port_destroy (EV_A); |
1005 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
875 | #endif |
1006 | #endif |
876 | #if EV_USE_KQUEUE |
1007 | #if EV_USE_KQUEUE |
877 | if (method == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
1008 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
878 | #endif |
1009 | #endif |
879 | #if EV_USE_EPOLL |
1010 | #if EV_USE_EPOLL |
880 | if (method == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
1011 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
881 | #endif |
1012 | #endif |
882 | #if EV_USE_POLL |
1013 | #if EV_USE_POLL |
883 | if (method == EVBACKEND_POLL ) poll_destroy (EV_A); |
1014 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
884 | #endif |
1015 | #endif |
885 | #if EV_USE_SELECT |
1016 | #if EV_USE_SELECT |
886 | if (method == EVBACKEND_SELECT) select_destroy (EV_A); |
1017 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
887 | #endif |
1018 | #endif |
888 | |
1019 | |
889 | for (i = NUMPRI; i--; ) |
1020 | for (i = NUMPRI; i--; ) |
|
|
1021 | { |
890 | array_free (pending, [i]); |
1022 | array_free (pending, [i]); |
|
|
1023 | #if EV_IDLE_ENABLE |
|
|
1024 | array_free (idle, [i]); |
|
|
1025 | #endif |
|
|
1026 | } |
891 | |
1027 | |
892 | /* have to use the microsoft-never-gets-it-right macro */ |
1028 | /* have to use the microsoft-never-gets-it-right macro */ |
893 | array_free (fdchange, EMPTY0); |
1029 | array_free (fdchange, EMPTY); |
894 | array_free (timer, EMPTY0); |
1030 | array_free (timer, EMPTY); |
895 | #if EV_PERIODICS |
1031 | #if EV_PERIODIC_ENABLE |
896 | array_free (periodic, EMPTY0); |
1032 | array_free (periodic, EMPTY); |
897 | #endif |
1033 | #endif |
898 | array_free (idle, EMPTY0); |
|
|
899 | array_free (prepare, EMPTY0); |
1034 | array_free (prepare, EMPTY); |
900 | array_free (check, EMPTY0); |
1035 | array_free (check, EMPTY); |
901 | |
1036 | |
902 | method = 0; |
1037 | backend = 0; |
903 | } |
1038 | } |
904 | |
1039 | |
905 | static void |
1040 | void inline_size infy_fork (EV_P); |
|
|
1041 | |
|
|
1042 | void inline_size |
906 | loop_fork (EV_P) |
1043 | loop_fork (EV_P) |
907 | { |
1044 | { |
908 | #if EV_USE_PORT |
1045 | #if EV_USE_PORT |
909 | if (method == EVBACKEND_PORT ) port_fork (EV_A); |
1046 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
910 | #endif |
1047 | #endif |
911 | #if EV_USE_KQUEUE |
1048 | #if EV_USE_KQUEUE |
912 | if (method == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
1049 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
913 | #endif |
1050 | #endif |
914 | #if EV_USE_EPOLL |
1051 | #if EV_USE_EPOLL |
915 | if (method == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
1052 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
|
|
1053 | #endif |
|
|
1054 | #if EV_USE_INOTIFY |
|
|
1055 | infy_fork (EV_A); |
916 | #endif |
1056 | #endif |
917 | |
1057 | |
918 | if (ev_is_active (&sigev)) |
1058 | if (ev_is_active (&sigev)) |
919 | { |
1059 | { |
920 | /* default loop */ |
1060 | /* default loop */ |
… | |
… | |
941 | |
1081 | |
942 | memset (loop, 0, sizeof (struct ev_loop)); |
1082 | memset (loop, 0, sizeof (struct ev_loop)); |
943 | |
1083 | |
944 | loop_init (EV_A_ flags); |
1084 | loop_init (EV_A_ flags); |
945 | |
1085 | |
946 | if (ev_method (EV_A)) |
1086 | if (ev_backend (EV_A)) |
947 | return loop; |
1087 | return loop; |
948 | |
1088 | |
949 | return 0; |
1089 | return 0; |
950 | } |
1090 | } |
951 | |
1091 | |
… | |
… | |
984 | ev_default_loop_ptr = 1; |
1124 | ev_default_loop_ptr = 1; |
985 | #endif |
1125 | #endif |
986 | |
1126 | |
987 | loop_init (EV_A_ flags); |
1127 | loop_init (EV_A_ flags); |
988 | |
1128 | |
989 | if (ev_method (EV_A)) |
1129 | if (ev_backend (EV_A)) |
990 | { |
1130 | { |
991 | siginit (EV_A); |
1131 | siginit (EV_A); |
992 | |
1132 | |
993 | #ifndef _WIN32 |
1133 | #ifndef _WIN32 |
994 | ev_signal_init (&childev, childcb, SIGCHLD); |
1134 | ev_signal_init (&childev, childcb, SIGCHLD); |
… | |
… | |
1030 | { |
1170 | { |
1031 | #if EV_MULTIPLICITY |
1171 | #if EV_MULTIPLICITY |
1032 | struct ev_loop *loop = ev_default_loop_ptr; |
1172 | struct ev_loop *loop = ev_default_loop_ptr; |
1033 | #endif |
1173 | #endif |
1034 | |
1174 | |
1035 | if (method) |
1175 | if (backend) |
1036 | postfork = 1; |
1176 | postfork = 1; |
1037 | } |
1177 | } |
1038 | |
1178 | |
1039 | /*****************************************************************************/ |
1179 | /*****************************************************************************/ |
1040 | |
1180 | |
1041 | static int |
1181 | void |
1042 | any_pending (EV_P) |
1182 | ev_invoke (EV_P_ void *w, int revents) |
1043 | { |
1183 | { |
1044 | int pri; |
1184 | EV_CB_INVOKE ((W)w, revents); |
1045 | |
|
|
1046 | for (pri = NUMPRI; pri--; ) |
|
|
1047 | if (pendingcnt [pri]) |
|
|
1048 | return 1; |
|
|
1049 | |
|
|
1050 | return 0; |
|
|
1051 | } |
1185 | } |
1052 | |
1186 | |
1053 | inline void |
1187 | void inline_speed |
1054 | call_pending (EV_P) |
1188 | call_pending (EV_P) |
1055 | { |
1189 | { |
1056 | int pri; |
1190 | int pri; |
1057 | |
1191 | |
1058 | for (pri = NUMPRI; pri--; ) |
1192 | for (pri = NUMPRI; pri--; ) |
… | |
… | |
1060 | { |
1194 | { |
1061 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1195 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1062 | |
1196 | |
1063 | if (expect_true (p->w)) |
1197 | if (expect_true (p->w)) |
1064 | { |
1198 | { |
|
|
1199 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
|
|
1200 | |
1065 | p->w->pending = 0; |
1201 | p->w->pending = 0; |
1066 | EV_CB_INVOKE (p->w, p->events); |
1202 | EV_CB_INVOKE (p->w, p->events); |
1067 | } |
1203 | } |
1068 | } |
1204 | } |
1069 | } |
1205 | } |
1070 | |
1206 | |
1071 | inline void |
1207 | void inline_size |
1072 | timers_reify (EV_P) |
1208 | timers_reify (EV_P) |
1073 | { |
1209 | { |
1074 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
1210 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
1075 | { |
1211 | { |
1076 | struct ev_timer *w = timers [0]; |
1212 | ev_timer *w = timers [0]; |
1077 | |
1213 | |
1078 | assert (("inactive timer on timer heap detected", ev_is_active (w))); |
1214 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
1079 | |
1215 | |
1080 | /* first reschedule or stop timer */ |
1216 | /* first reschedule or stop timer */ |
1081 | if (w->repeat) |
1217 | if (w->repeat) |
1082 | { |
1218 | { |
1083 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1219 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
… | |
… | |
1093 | |
1229 | |
1094 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
1230 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
1095 | } |
1231 | } |
1096 | } |
1232 | } |
1097 | |
1233 | |
1098 | #if EV_PERIODICS |
1234 | #if EV_PERIODIC_ENABLE |
1099 | inline void |
1235 | void inline_size |
1100 | periodics_reify (EV_P) |
1236 | periodics_reify (EV_P) |
1101 | { |
1237 | { |
1102 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
1238 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
1103 | { |
1239 | { |
1104 | struct ev_periodic *w = periodics [0]; |
1240 | ev_periodic *w = periodics [0]; |
1105 | |
1241 | |
1106 | assert (("inactive timer on periodic heap detected", ev_is_active (w))); |
1242 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
1107 | |
1243 | |
1108 | /* first reschedule or stop timer */ |
1244 | /* first reschedule or stop timer */ |
1109 | if (w->reschedule_cb) |
1245 | if (w->reschedule_cb) |
1110 | { |
1246 | { |
1111 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); |
1247 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); |
1112 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
1248 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
1113 | downheap ((WT *)periodics, periodiccnt, 0); |
1249 | downheap ((WT *)periodics, periodiccnt, 0); |
1114 | } |
1250 | } |
1115 | else if (w->interval) |
1251 | else if (w->interval) |
1116 | { |
1252 | { |
1117 | ((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
1253 | ((WT)w)->at = w->offset + floor ((ev_rt_now + TIME_EPSILON - w->offset) / w->interval + 1.) * w->interval; |
1118 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
1254 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
1119 | downheap ((WT *)periodics, periodiccnt, 0); |
1255 | downheap ((WT *)periodics, periodiccnt, 0); |
1120 | } |
1256 | } |
1121 | else |
1257 | else |
1122 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1258 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1123 | |
1259 | |
1124 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
1260 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
1125 | } |
1261 | } |
1126 | } |
1262 | } |
1127 | |
1263 | |
1128 | static void |
1264 | static void noinline |
1129 | periodics_reschedule (EV_P) |
1265 | periodics_reschedule (EV_P) |
1130 | { |
1266 | { |
1131 | int i; |
1267 | int i; |
1132 | |
1268 | |
1133 | /* adjust periodics after time jump */ |
1269 | /* adjust periodics after time jump */ |
1134 | for (i = 0; i < periodiccnt; ++i) |
1270 | for (i = 0; i < periodiccnt; ++i) |
1135 | { |
1271 | { |
1136 | struct ev_periodic *w = periodics [i]; |
1272 | ev_periodic *w = periodics [i]; |
1137 | |
1273 | |
1138 | if (w->reschedule_cb) |
1274 | if (w->reschedule_cb) |
1139 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1275 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1140 | else if (w->interval) |
1276 | else if (w->interval) |
1141 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1277 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1142 | } |
1278 | } |
1143 | |
1279 | |
1144 | /* now rebuild the heap */ |
1280 | /* now rebuild the heap */ |
1145 | for (i = periodiccnt >> 1; i--; ) |
1281 | for (i = periodiccnt >> 1; i--; ) |
1146 | downheap ((WT *)periodics, periodiccnt, i); |
1282 | downheap ((WT *)periodics, periodiccnt, i); |
1147 | } |
1283 | } |
1148 | #endif |
1284 | #endif |
1149 | |
1285 | |
1150 | inline int |
1286 | #if EV_IDLE_ENABLE |
|
|
1287 | void inline_size |
|
|
1288 | idle_reify (EV_P) |
|
|
1289 | { |
|
|
1290 | if (expect_false (idleall)) |
|
|
1291 | { |
|
|
1292 | int pri; |
|
|
1293 | |
|
|
1294 | for (pri = NUMPRI; pri--; ) |
|
|
1295 | { |
|
|
1296 | if (pendingcnt [pri]) |
|
|
1297 | break; |
|
|
1298 | |
|
|
1299 | if (idlecnt [pri]) |
|
|
1300 | { |
|
|
1301 | queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE); |
|
|
1302 | break; |
|
|
1303 | } |
|
|
1304 | } |
|
|
1305 | } |
|
|
1306 | } |
|
|
1307 | #endif |
|
|
1308 | |
|
|
1309 | int inline_size |
1151 | time_update_monotonic (EV_P) |
1310 | time_update_monotonic (EV_P) |
1152 | { |
1311 | { |
1153 | mn_now = get_clock (); |
1312 | mn_now = get_clock (); |
1154 | |
1313 | |
1155 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1314 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
… | |
… | |
1163 | ev_rt_now = ev_time (); |
1322 | ev_rt_now = ev_time (); |
1164 | return 1; |
1323 | return 1; |
1165 | } |
1324 | } |
1166 | } |
1325 | } |
1167 | |
1326 | |
1168 | inline void |
1327 | void inline_size |
1169 | time_update (EV_P) |
1328 | time_update (EV_P) |
1170 | { |
1329 | { |
1171 | int i; |
1330 | int i; |
1172 | |
1331 | |
1173 | #if EV_USE_MONOTONIC |
1332 | #if EV_USE_MONOTONIC |
… | |
… | |
1175 | { |
1334 | { |
1176 | if (time_update_monotonic (EV_A)) |
1335 | if (time_update_monotonic (EV_A)) |
1177 | { |
1336 | { |
1178 | ev_tstamp odiff = rtmn_diff; |
1337 | ev_tstamp odiff = rtmn_diff; |
1179 | |
1338 | |
1180 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
1339 | /* loop a few times, before making important decisions. |
|
|
1340 | * on the choice of "4": one iteration isn't enough, |
|
|
1341 | * in case we get preempted during the calls to |
|
|
1342 | * ev_time and get_clock. a second call is almost guaranteed |
|
|
1343 | * to succeed in that case, though. and looping a few more times |
|
|
1344 | * doesn't hurt either as we only do this on time-jumps or |
|
|
1345 | * in the unlikely event of having been preempted here. |
|
|
1346 | */ |
|
|
1347 | for (i = 4; --i; ) |
1181 | { |
1348 | { |
1182 | rtmn_diff = ev_rt_now - mn_now; |
1349 | rtmn_diff = ev_rt_now - mn_now; |
1183 | |
1350 | |
1184 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1351 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1185 | return; /* all is well */ |
1352 | return; /* all is well */ |
… | |
… | |
1187 | ev_rt_now = ev_time (); |
1354 | ev_rt_now = ev_time (); |
1188 | mn_now = get_clock (); |
1355 | mn_now = get_clock (); |
1189 | now_floor = mn_now; |
1356 | now_floor = mn_now; |
1190 | } |
1357 | } |
1191 | |
1358 | |
1192 | # if EV_PERIODICS |
1359 | # if EV_PERIODIC_ENABLE |
1193 | periodics_reschedule (EV_A); |
1360 | periodics_reschedule (EV_A); |
1194 | # endif |
1361 | # endif |
1195 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
1362 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
1196 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1363 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1197 | } |
1364 | } |
… | |
… | |
1201 | { |
1368 | { |
1202 | ev_rt_now = ev_time (); |
1369 | ev_rt_now = ev_time (); |
1203 | |
1370 | |
1204 | if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
1371 | if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
1205 | { |
1372 | { |
1206 | #if EV_PERIODICS |
1373 | #if EV_PERIODIC_ENABLE |
1207 | periodics_reschedule (EV_A); |
1374 | periodics_reschedule (EV_A); |
1208 | #endif |
1375 | #endif |
1209 | |
1376 | |
1210 | /* adjust timers. this is easy, as the offset is the same for all */ |
1377 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
1211 | for (i = 0; i < timercnt; ++i) |
1378 | for (i = 0; i < timercnt; ++i) |
1212 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
1379 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
1213 | } |
1380 | } |
1214 | |
1381 | |
1215 | mn_now = ev_rt_now; |
1382 | mn_now = ev_rt_now; |
… | |
… | |
1231 | static int loop_done; |
1398 | static int loop_done; |
1232 | |
1399 | |
1233 | void |
1400 | void |
1234 | ev_loop (EV_P_ int flags) |
1401 | ev_loop (EV_P_ int flags) |
1235 | { |
1402 | { |
1236 | double block; |
|
|
1237 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; |
1403 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) |
|
|
1404 | ? EVUNLOOP_ONE |
|
|
1405 | : EVUNLOOP_CANCEL; |
1238 | |
1406 | |
1239 | while (activecnt) |
1407 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
|
|
1408 | |
|
|
1409 | do |
1240 | { |
1410 | { |
|
|
1411 | #ifndef _WIN32 |
|
|
1412 | if (expect_false (curpid)) /* penalise the forking check even more */ |
|
|
1413 | if (expect_false (getpid () != curpid)) |
|
|
1414 | { |
|
|
1415 | curpid = getpid (); |
|
|
1416 | postfork = 1; |
|
|
1417 | } |
|
|
1418 | #endif |
|
|
1419 | |
|
|
1420 | #if EV_FORK_ENABLE |
|
|
1421 | /* we might have forked, so queue fork handlers */ |
|
|
1422 | if (expect_false (postfork)) |
|
|
1423 | if (forkcnt) |
|
|
1424 | { |
|
|
1425 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
|
|
1426 | call_pending (EV_A); |
|
|
1427 | } |
|
|
1428 | #endif |
|
|
1429 | |
1241 | /* queue check watchers (and execute them) */ |
1430 | /* queue prepare watchers (and execute them) */ |
1242 | if (expect_false (preparecnt)) |
1431 | if (expect_false (preparecnt)) |
1243 | { |
1432 | { |
1244 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1433 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1245 | call_pending (EV_A); |
1434 | call_pending (EV_A); |
1246 | } |
1435 | } |
1247 | |
1436 | |
|
|
1437 | if (expect_false (!activecnt)) |
|
|
1438 | break; |
|
|
1439 | |
1248 | /* we might have forked, so reify kernel state if necessary */ |
1440 | /* we might have forked, so reify kernel state if necessary */ |
1249 | if (expect_false (postfork)) |
1441 | if (expect_false (postfork)) |
1250 | loop_fork (EV_A); |
1442 | loop_fork (EV_A); |
1251 | |
1443 | |
1252 | /* update fd-related kernel structures */ |
1444 | /* update fd-related kernel structures */ |
1253 | fd_reify (EV_A); |
1445 | fd_reify (EV_A); |
1254 | |
1446 | |
1255 | /* calculate blocking time */ |
1447 | /* calculate blocking time */ |
|
|
1448 | { |
|
|
1449 | ev_tstamp block; |
1256 | |
1450 | |
1257 | /* we only need this for !monotonic clock or timers, but as we basically |
1451 | if (expect_false (flags & EVLOOP_NONBLOCK || idleall || !activecnt)) |
1258 | always have timers, we just calculate it always */ |
1452 | block = 0.; /* do not block at all */ |
|
|
1453 | else |
|
|
1454 | { |
|
|
1455 | /* update time to cancel out callback processing overhead */ |
1259 | #if EV_USE_MONOTONIC |
1456 | #if EV_USE_MONOTONIC |
1260 | if (expect_true (have_monotonic)) |
1457 | if (expect_true (have_monotonic)) |
1261 | time_update_monotonic (EV_A); |
1458 | time_update_monotonic (EV_A); |
1262 | else |
1459 | else |
1263 | #endif |
1460 | #endif |
1264 | { |
1461 | { |
1265 | ev_rt_now = ev_time (); |
1462 | ev_rt_now = ev_time (); |
1266 | mn_now = ev_rt_now; |
1463 | mn_now = ev_rt_now; |
1267 | } |
1464 | } |
1268 | |
1465 | |
1269 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
|
|
1270 | block = 0.; |
|
|
1271 | else |
|
|
1272 | { |
|
|
1273 | block = MAX_BLOCKTIME; |
1466 | block = MAX_BLOCKTIME; |
1274 | |
1467 | |
1275 | if (timercnt) |
1468 | if (timercnt) |
1276 | { |
1469 | { |
1277 | ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge; |
1470 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
1278 | if (block > to) block = to; |
1471 | if (block > to) block = to; |
1279 | } |
1472 | } |
1280 | |
1473 | |
1281 | #if EV_PERIODICS |
1474 | #if EV_PERIODIC_ENABLE |
1282 | if (periodiccnt) |
1475 | if (periodiccnt) |
1283 | { |
1476 | { |
1284 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge; |
1477 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
1285 | if (block > to) block = to; |
1478 | if (block > to) block = to; |
1286 | } |
1479 | } |
1287 | #endif |
1480 | #endif |
1288 | |
1481 | |
1289 | if (expect_false (block < 0.)) block = 0.; |
1482 | if (expect_false (block < 0.)) block = 0.; |
1290 | } |
1483 | } |
1291 | |
1484 | |
|
|
1485 | ++loop_count; |
1292 | method_poll (EV_A_ block); |
1486 | backend_poll (EV_A_ block); |
|
|
1487 | } |
1293 | |
1488 | |
1294 | /* update ev_rt_now, do magic */ |
1489 | /* update ev_rt_now, do magic */ |
1295 | time_update (EV_A); |
1490 | time_update (EV_A); |
1296 | |
1491 | |
1297 | /* queue pending timers and reschedule them */ |
1492 | /* queue pending timers and reschedule them */ |
1298 | timers_reify (EV_A); /* relative timers called last */ |
1493 | timers_reify (EV_A); /* relative timers called last */ |
1299 | #if EV_PERIODICS |
1494 | #if EV_PERIODIC_ENABLE |
1300 | periodics_reify (EV_A); /* absolute timers called first */ |
1495 | periodics_reify (EV_A); /* absolute timers called first */ |
1301 | #endif |
1496 | #endif |
1302 | |
1497 | |
|
|
1498 | #if EV_IDLE_ENABLE |
1303 | /* queue idle watchers unless io or timers are pending */ |
1499 | /* queue idle watchers unless other events are pending */ |
1304 | if (idlecnt && !any_pending (EV_A)) |
1500 | idle_reify (EV_A); |
1305 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
1501 | #endif |
1306 | |
1502 | |
1307 | /* queue check watchers, to be executed first */ |
1503 | /* queue check watchers, to be executed first */ |
1308 | if (expect_false (checkcnt)) |
1504 | if (expect_false (checkcnt)) |
1309 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1505 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1310 | |
1506 | |
1311 | call_pending (EV_A); |
1507 | call_pending (EV_A); |
1312 | |
1508 | |
1313 | if (expect_false (loop_done)) |
|
|
1314 | break; |
|
|
1315 | } |
1509 | } |
|
|
1510 | while (expect_true (activecnt && !loop_done)); |
1316 | |
1511 | |
1317 | if (loop_done != 2) |
1512 | if (loop_done == EVUNLOOP_ONE) |
1318 | loop_done = 0; |
1513 | loop_done = EVUNLOOP_CANCEL; |
1319 | } |
1514 | } |
1320 | |
1515 | |
1321 | void |
1516 | void |
1322 | ev_unloop (EV_P_ int how) |
1517 | ev_unloop (EV_P_ int how) |
1323 | { |
1518 | { |
1324 | loop_done = how; |
1519 | loop_done = how; |
1325 | } |
1520 | } |
1326 | |
1521 | |
1327 | /*****************************************************************************/ |
1522 | /*****************************************************************************/ |
1328 | |
1523 | |
1329 | inline void |
1524 | void inline_size |
1330 | wlist_add (WL *head, WL elem) |
1525 | wlist_add (WL *head, WL elem) |
1331 | { |
1526 | { |
1332 | elem->next = *head; |
1527 | elem->next = *head; |
1333 | *head = elem; |
1528 | *head = elem; |
1334 | } |
1529 | } |
1335 | |
1530 | |
1336 | inline void |
1531 | void inline_size |
1337 | wlist_del (WL *head, WL elem) |
1532 | wlist_del (WL *head, WL elem) |
1338 | { |
1533 | { |
1339 | while (*head) |
1534 | while (*head) |
1340 | { |
1535 | { |
1341 | if (*head == elem) |
1536 | if (*head == elem) |
… | |
… | |
1346 | |
1541 | |
1347 | head = &(*head)->next; |
1542 | head = &(*head)->next; |
1348 | } |
1543 | } |
1349 | } |
1544 | } |
1350 | |
1545 | |
1351 | inline void |
1546 | void inline_speed |
1352 | ev_clear_pending (EV_P_ W w) |
1547 | clear_pending (EV_P_ W w) |
1353 | { |
1548 | { |
1354 | if (w->pending) |
1549 | if (w->pending) |
1355 | { |
1550 | { |
1356 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1551 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1357 | w->pending = 0; |
1552 | w->pending = 0; |
1358 | } |
1553 | } |
1359 | } |
1554 | } |
1360 | |
1555 | |
1361 | inline void |
1556 | int |
|
|
1557 | ev_clear_pending (EV_P_ void *w) |
|
|
1558 | { |
|
|
1559 | W w_ = (W)w; |
|
|
1560 | int pending = w_->pending; |
|
|
1561 | |
|
|
1562 | if (expect_true (pending)) |
|
|
1563 | { |
|
|
1564 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
1565 | w_->pending = 0; |
|
|
1566 | p->w = 0; |
|
|
1567 | return p->events; |
|
|
1568 | } |
|
|
1569 | else |
|
|
1570 | return 0; |
|
|
1571 | } |
|
|
1572 | |
|
|
1573 | void inline_size |
|
|
1574 | pri_adjust (EV_P_ W w) |
|
|
1575 | { |
|
|
1576 | int pri = w->priority; |
|
|
1577 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
|
|
1578 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
|
|
1579 | w->priority = pri; |
|
|
1580 | } |
|
|
1581 | |
|
|
1582 | void inline_speed |
1362 | ev_start (EV_P_ W w, int active) |
1583 | ev_start (EV_P_ W w, int active) |
1363 | { |
1584 | { |
1364 | if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; |
1585 | pri_adjust (EV_A_ w); |
1365 | if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; |
|
|
1366 | |
|
|
1367 | w->active = active; |
1586 | w->active = active; |
1368 | ev_ref (EV_A); |
1587 | ev_ref (EV_A); |
1369 | } |
1588 | } |
1370 | |
1589 | |
1371 | inline void |
1590 | void inline_size |
1372 | ev_stop (EV_P_ W w) |
1591 | ev_stop (EV_P_ W w) |
1373 | { |
1592 | { |
1374 | ev_unref (EV_A); |
1593 | ev_unref (EV_A); |
1375 | w->active = 0; |
1594 | w->active = 0; |
1376 | } |
1595 | } |
1377 | |
1596 | |
1378 | /*****************************************************************************/ |
1597 | /*****************************************************************************/ |
1379 | |
1598 | |
1380 | void |
1599 | void noinline |
1381 | ev_io_start (EV_P_ struct ev_io *w) |
1600 | ev_io_start (EV_P_ ev_io *w) |
1382 | { |
1601 | { |
1383 | int fd = w->fd; |
1602 | int fd = w->fd; |
1384 | |
1603 | |
1385 | if (expect_false (ev_is_active (w))) |
1604 | if (expect_false (ev_is_active (w))) |
1386 | return; |
1605 | return; |
… | |
… | |
1392 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1611 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1393 | |
1612 | |
1394 | fd_change (EV_A_ fd); |
1613 | fd_change (EV_A_ fd); |
1395 | } |
1614 | } |
1396 | |
1615 | |
1397 | void |
1616 | void noinline |
1398 | ev_io_stop (EV_P_ struct ev_io *w) |
1617 | ev_io_stop (EV_P_ ev_io *w) |
1399 | { |
1618 | { |
1400 | ev_clear_pending (EV_A_ (W)w); |
1619 | clear_pending (EV_A_ (W)w); |
1401 | if (expect_false (!ev_is_active (w))) |
1620 | if (expect_false (!ev_is_active (w))) |
1402 | return; |
1621 | return; |
1403 | |
1622 | |
1404 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
1623 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
1405 | |
1624 | |
… | |
… | |
1407 | ev_stop (EV_A_ (W)w); |
1626 | ev_stop (EV_A_ (W)w); |
1408 | |
1627 | |
1409 | fd_change (EV_A_ w->fd); |
1628 | fd_change (EV_A_ w->fd); |
1410 | } |
1629 | } |
1411 | |
1630 | |
1412 | void |
1631 | void noinline |
1413 | ev_timer_start (EV_P_ struct ev_timer *w) |
1632 | ev_timer_start (EV_P_ ev_timer *w) |
1414 | { |
1633 | { |
1415 | if (expect_false (ev_is_active (w))) |
1634 | if (expect_false (ev_is_active (w))) |
1416 | return; |
1635 | return; |
1417 | |
1636 | |
1418 | ((WT)w)->at += mn_now; |
1637 | ((WT)w)->at += mn_now; |
1419 | |
1638 | |
1420 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1639 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1421 | |
1640 | |
1422 | ev_start (EV_A_ (W)w, ++timercnt); |
1641 | ev_start (EV_A_ (W)w, ++timercnt); |
1423 | array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2); |
1642 | array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2); |
1424 | timers [timercnt - 1] = w; |
1643 | timers [timercnt - 1] = w; |
1425 | upheap ((WT *)timers, timercnt - 1); |
1644 | upheap ((WT *)timers, timercnt - 1); |
1426 | |
1645 | |
|
|
1646 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
|
|
1647 | } |
|
|
1648 | |
|
|
1649 | void noinline |
|
|
1650 | ev_timer_stop (EV_P_ ev_timer *w) |
|
|
1651 | { |
|
|
1652 | clear_pending (EV_A_ (W)w); |
|
|
1653 | if (expect_false (!ev_is_active (w))) |
|
|
1654 | return; |
|
|
1655 | |
1427 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1656 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1428 | } |
|
|
1429 | |
1657 | |
1430 | void |
1658 | { |
1431 | ev_timer_stop (EV_P_ struct ev_timer *w) |
1659 | int active = ((W)w)->active; |
1432 | { |
|
|
1433 | ev_clear_pending (EV_A_ (W)w); |
|
|
1434 | if (expect_false (!ev_is_active (w))) |
|
|
1435 | return; |
|
|
1436 | |
1660 | |
1437 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
|
|
1438 | |
|
|
1439 | if (expect_true (((W)w)->active < timercnt--)) |
1661 | if (expect_true (--active < --timercnt)) |
1440 | { |
1662 | { |
1441 | timers [((W)w)->active - 1] = timers [timercnt]; |
1663 | timers [active] = timers [timercnt]; |
1442 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1664 | adjustheap ((WT *)timers, timercnt, active); |
1443 | } |
1665 | } |
|
|
1666 | } |
1444 | |
1667 | |
1445 | ((WT)w)->at -= mn_now; |
1668 | ((WT)w)->at -= mn_now; |
1446 | |
1669 | |
1447 | ev_stop (EV_A_ (W)w); |
1670 | ev_stop (EV_A_ (W)w); |
1448 | } |
1671 | } |
1449 | |
1672 | |
1450 | void |
1673 | void noinline |
1451 | ev_timer_again (EV_P_ struct ev_timer *w) |
1674 | ev_timer_again (EV_P_ ev_timer *w) |
1452 | { |
1675 | { |
1453 | if (ev_is_active (w)) |
1676 | if (ev_is_active (w)) |
1454 | { |
1677 | { |
1455 | if (w->repeat) |
1678 | if (w->repeat) |
1456 | { |
1679 | { |
… | |
… | |
1465 | w->at = w->repeat; |
1688 | w->at = w->repeat; |
1466 | ev_timer_start (EV_A_ w); |
1689 | ev_timer_start (EV_A_ w); |
1467 | } |
1690 | } |
1468 | } |
1691 | } |
1469 | |
1692 | |
1470 | #if EV_PERIODICS |
1693 | #if EV_PERIODIC_ENABLE |
1471 | void |
1694 | void noinline |
1472 | ev_periodic_start (EV_P_ struct ev_periodic *w) |
1695 | ev_periodic_start (EV_P_ ev_periodic *w) |
1473 | { |
1696 | { |
1474 | if (expect_false (ev_is_active (w))) |
1697 | if (expect_false (ev_is_active (w))) |
1475 | return; |
1698 | return; |
1476 | |
1699 | |
1477 | if (w->reschedule_cb) |
1700 | if (w->reschedule_cb) |
1478 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1701 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1479 | else if (w->interval) |
1702 | else if (w->interval) |
1480 | { |
1703 | { |
1481 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1704 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1482 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1705 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1483 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1706 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1484 | } |
1707 | } |
|
|
1708 | else |
|
|
1709 | ((WT)w)->at = w->offset; |
1485 | |
1710 | |
1486 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1711 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1487 | array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); |
1712 | array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); |
1488 | periodics [periodiccnt - 1] = w; |
1713 | periodics [periodiccnt - 1] = w; |
1489 | upheap ((WT *)periodics, periodiccnt - 1); |
1714 | upheap ((WT *)periodics, periodiccnt - 1); |
1490 | |
1715 | |
|
|
1716 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
|
|
1717 | } |
|
|
1718 | |
|
|
1719 | void noinline |
|
|
1720 | ev_periodic_stop (EV_P_ ev_periodic *w) |
|
|
1721 | { |
|
|
1722 | clear_pending (EV_A_ (W)w); |
|
|
1723 | if (expect_false (!ev_is_active (w))) |
|
|
1724 | return; |
|
|
1725 | |
1491 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1726 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1492 | } |
|
|
1493 | |
1727 | |
1494 | void |
1728 | { |
1495 | ev_periodic_stop (EV_P_ struct ev_periodic *w) |
1729 | int active = ((W)w)->active; |
1496 | { |
|
|
1497 | ev_clear_pending (EV_A_ (W)w); |
|
|
1498 | if (expect_false (!ev_is_active (w))) |
|
|
1499 | return; |
|
|
1500 | |
1730 | |
1501 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
|
|
1502 | |
|
|
1503 | if (expect_true (((W)w)->active < periodiccnt--)) |
1731 | if (expect_true (--active < --periodiccnt)) |
1504 | { |
1732 | { |
1505 | periodics [((W)w)->active - 1] = periodics [periodiccnt]; |
1733 | periodics [active] = periodics [periodiccnt]; |
1506 | adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); |
1734 | adjustheap ((WT *)periodics, periodiccnt, active); |
1507 | } |
1735 | } |
|
|
1736 | } |
1508 | |
1737 | |
1509 | ev_stop (EV_A_ (W)w); |
1738 | ev_stop (EV_A_ (W)w); |
1510 | } |
1739 | } |
1511 | |
1740 | |
1512 | void |
1741 | void noinline |
1513 | ev_periodic_again (EV_P_ struct ev_periodic *w) |
1742 | ev_periodic_again (EV_P_ ev_periodic *w) |
1514 | { |
1743 | { |
1515 | /* TODO: use adjustheap and recalculation */ |
1744 | /* TODO: use adjustheap and recalculation */ |
1516 | ev_periodic_stop (EV_A_ w); |
1745 | ev_periodic_stop (EV_A_ w); |
1517 | ev_periodic_start (EV_A_ w); |
1746 | ev_periodic_start (EV_A_ w); |
1518 | } |
1747 | } |
1519 | #endif |
1748 | #endif |
1520 | |
1749 | |
1521 | void |
|
|
1522 | ev_idle_start (EV_P_ struct ev_idle *w) |
|
|
1523 | { |
|
|
1524 | if (expect_false (ev_is_active (w))) |
|
|
1525 | return; |
|
|
1526 | |
|
|
1527 | ev_start (EV_A_ (W)w, ++idlecnt); |
|
|
1528 | array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2); |
|
|
1529 | idles [idlecnt - 1] = w; |
|
|
1530 | } |
|
|
1531 | |
|
|
1532 | void |
|
|
1533 | ev_idle_stop (EV_P_ struct ev_idle *w) |
|
|
1534 | { |
|
|
1535 | ev_clear_pending (EV_A_ (W)w); |
|
|
1536 | if (expect_false (!ev_is_active (w))) |
|
|
1537 | return; |
|
|
1538 | |
|
|
1539 | idles [((W)w)->active - 1] = idles [--idlecnt]; |
|
|
1540 | ev_stop (EV_A_ (W)w); |
|
|
1541 | } |
|
|
1542 | |
|
|
1543 | void |
|
|
1544 | ev_prepare_start (EV_P_ struct ev_prepare *w) |
|
|
1545 | { |
|
|
1546 | if (expect_false (ev_is_active (w))) |
|
|
1547 | return; |
|
|
1548 | |
|
|
1549 | ev_start (EV_A_ (W)w, ++preparecnt); |
|
|
1550 | array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
|
|
1551 | prepares [preparecnt - 1] = w; |
|
|
1552 | } |
|
|
1553 | |
|
|
1554 | void |
|
|
1555 | ev_prepare_stop (EV_P_ struct ev_prepare *w) |
|
|
1556 | { |
|
|
1557 | ev_clear_pending (EV_A_ (W)w); |
|
|
1558 | if (expect_false (!ev_is_active (w))) |
|
|
1559 | return; |
|
|
1560 | |
|
|
1561 | prepares [((W)w)->active - 1] = prepares [--preparecnt]; |
|
|
1562 | ev_stop (EV_A_ (W)w); |
|
|
1563 | } |
|
|
1564 | |
|
|
1565 | void |
|
|
1566 | ev_check_start (EV_P_ struct ev_check *w) |
|
|
1567 | { |
|
|
1568 | if (expect_false (ev_is_active (w))) |
|
|
1569 | return; |
|
|
1570 | |
|
|
1571 | ev_start (EV_A_ (W)w, ++checkcnt); |
|
|
1572 | array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2); |
|
|
1573 | checks [checkcnt - 1] = w; |
|
|
1574 | } |
|
|
1575 | |
|
|
1576 | void |
|
|
1577 | ev_check_stop (EV_P_ struct ev_check *w) |
|
|
1578 | { |
|
|
1579 | ev_clear_pending (EV_A_ (W)w); |
|
|
1580 | if (expect_false (!ev_is_active (w))) |
|
|
1581 | return; |
|
|
1582 | |
|
|
1583 | checks [((W)w)->active - 1] = checks [--checkcnt]; |
|
|
1584 | ev_stop (EV_A_ (W)w); |
|
|
1585 | } |
|
|
1586 | |
|
|
1587 | #ifndef SA_RESTART |
1750 | #ifndef SA_RESTART |
1588 | # define SA_RESTART 0 |
1751 | # define SA_RESTART 0 |
1589 | #endif |
1752 | #endif |
1590 | |
1753 | |
1591 | void |
1754 | void noinline |
1592 | ev_signal_start (EV_P_ struct ev_signal *w) |
1755 | ev_signal_start (EV_P_ ev_signal *w) |
1593 | { |
1756 | { |
1594 | #if EV_MULTIPLICITY |
1757 | #if EV_MULTIPLICITY |
1595 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1758 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1596 | #endif |
1759 | #endif |
1597 | if (expect_false (ev_is_active (w))) |
1760 | if (expect_false (ev_is_active (w))) |
… | |
… | |
1615 | sigaction (w->signum, &sa, 0); |
1778 | sigaction (w->signum, &sa, 0); |
1616 | #endif |
1779 | #endif |
1617 | } |
1780 | } |
1618 | } |
1781 | } |
1619 | |
1782 | |
1620 | void |
1783 | void noinline |
1621 | ev_signal_stop (EV_P_ struct ev_signal *w) |
1784 | ev_signal_stop (EV_P_ ev_signal *w) |
1622 | { |
1785 | { |
1623 | ev_clear_pending (EV_A_ (W)w); |
1786 | clear_pending (EV_A_ (W)w); |
1624 | if (expect_false (!ev_is_active (w))) |
1787 | if (expect_false (!ev_is_active (w))) |
1625 | return; |
1788 | return; |
1626 | |
1789 | |
1627 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
1790 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
1628 | ev_stop (EV_A_ (W)w); |
1791 | ev_stop (EV_A_ (W)w); |
… | |
… | |
1630 | if (!signals [w->signum - 1].head) |
1793 | if (!signals [w->signum - 1].head) |
1631 | signal (w->signum, SIG_DFL); |
1794 | signal (w->signum, SIG_DFL); |
1632 | } |
1795 | } |
1633 | |
1796 | |
1634 | void |
1797 | void |
1635 | ev_child_start (EV_P_ struct ev_child *w) |
1798 | ev_child_start (EV_P_ ev_child *w) |
1636 | { |
1799 | { |
1637 | #if EV_MULTIPLICITY |
1800 | #if EV_MULTIPLICITY |
1638 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1801 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1639 | #endif |
1802 | #endif |
1640 | if (expect_false (ev_is_active (w))) |
1803 | if (expect_false (ev_is_active (w))) |
1641 | return; |
1804 | return; |
1642 | |
1805 | |
1643 | ev_start (EV_A_ (W)w, 1); |
1806 | ev_start (EV_A_ (W)w, 1); |
1644 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1807 | wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1645 | } |
1808 | } |
1646 | |
1809 | |
1647 | void |
1810 | void |
1648 | ev_child_stop (EV_P_ struct ev_child *w) |
1811 | ev_child_stop (EV_P_ ev_child *w) |
1649 | { |
1812 | { |
1650 | ev_clear_pending (EV_A_ (W)w); |
1813 | clear_pending (EV_A_ (W)w); |
1651 | if (expect_false (!ev_is_active (w))) |
1814 | if (expect_false (!ev_is_active (w))) |
1652 | return; |
1815 | return; |
1653 | |
1816 | |
1654 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1817 | wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1655 | ev_stop (EV_A_ (W)w); |
1818 | ev_stop (EV_A_ (W)w); |
1656 | } |
1819 | } |
1657 | |
1820 | |
|
|
1821 | #if EV_STAT_ENABLE |
|
|
1822 | |
|
|
1823 | # ifdef _WIN32 |
|
|
1824 | # undef lstat |
|
|
1825 | # define lstat(a,b) _stati64 (a,b) |
|
|
1826 | # endif |
|
|
1827 | |
|
|
1828 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
1829 | #define MIN_STAT_INTERVAL 0.1074891 |
|
|
1830 | |
|
|
1831 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
|
|
1832 | |
|
|
1833 | #if EV_USE_INOTIFY |
|
|
1834 | # define EV_INOTIFY_BUFSIZE 8192 |
|
|
1835 | |
|
|
1836 | static void noinline |
|
|
1837 | infy_add (EV_P_ ev_stat *w) |
|
|
1838 | { |
|
|
1839 | w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); |
|
|
1840 | |
|
|
1841 | if (w->wd < 0) |
|
|
1842 | { |
|
|
1843 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
|
|
1844 | |
|
|
1845 | /* monitor some parent directory for speedup hints */ |
|
|
1846 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
|
|
1847 | { |
|
|
1848 | char path [4096]; |
|
|
1849 | strcpy (path, w->path); |
|
|
1850 | |
|
|
1851 | do |
|
|
1852 | { |
|
|
1853 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
|
|
1854 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
|
|
1855 | |
|
|
1856 | char *pend = strrchr (path, '/'); |
|
|
1857 | |
|
|
1858 | if (!pend) |
|
|
1859 | break; /* whoops, no '/', complain to your admin */ |
|
|
1860 | |
|
|
1861 | *pend = 0; |
|
|
1862 | w->wd = inotify_add_watch (fs_fd, path, mask); |
|
|
1863 | } |
|
|
1864 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
|
|
1865 | } |
|
|
1866 | } |
|
|
1867 | else |
|
|
1868 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
1869 | |
|
|
1870 | if (w->wd >= 0) |
|
|
1871 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
1872 | } |
|
|
1873 | |
|
|
1874 | static void noinline |
|
|
1875 | infy_del (EV_P_ ev_stat *w) |
|
|
1876 | { |
|
|
1877 | int slot; |
|
|
1878 | int wd = w->wd; |
|
|
1879 | |
|
|
1880 | if (wd < 0) |
|
|
1881 | return; |
|
|
1882 | |
|
|
1883 | w->wd = -2; |
|
|
1884 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
|
|
1885 | wlist_del (&fs_hash [slot].head, (WL)w); |
|
|
1886 | |
|
|
1887 | /* remove this watcher, if others are watching it, they will rearm */ |
|
|
1888 | inotify_rm_watch (fs_fd, wd); |
|
|
1889 | } |
|
|
1890 | |
|
|
1891 | static void noinline |
|
|
1892 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
|
|
1893 | { |
|
|
1894 | if (slot < 0) |
|
|
1895 | /* overflow, need to check for all hahs slots */ |
|
|
1896 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
1897 | infy_wd (EV_A_ slot, wd, ev); |
|
|
1898 | else |
|
|
1899 | { |
|
|
1900 | WL w_; |
|
|
1901 | |
|
|
1902 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
|
|
1903 | { |
|
|
1904 | ev_stat *w = (ev_stat *)w_; |
|
|
1905 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
|
|
1906 | |
|
|
1907 | if (w->wd == wd || wd == -1) |
|
|
1908 | { |
|
|
1909 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
|
|
1910 | { |
|
|
1911 | w->wd = -1; |
|
|
1912 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
1913 | } |
|
|
1914 | |
|
|
1915 | stat_timer_cb (EV_A_ &w->timer, 0); |
|
|
1916 | } |
|
|
1917 | } |
|
|
1918 | } |
|
|
1919 | } |
|
|
1920 | |
|
|
1921 | static void |
|
|
1922 | infy_cb (EV_P_ ev_io *w, int revents) |
|
|
1923 | { |
|
|
1924 | char buf [EV_INOTIFY_BUFSIZE]; |
|
|
1925 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
1926 | int ofs; |
|
|
1927 | int len = read (fs_fd, buf, sizeof (buf)); |
|
|
1928 | |
|
|
1929 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
|
|
1930 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
1931 | } |
|
|
1932 | |
|
|
1933 | void inline_size |
|
|
1934 | infy_init (EV_P) |
|
|
1935 | { |
|
|
1936 | if (fs_fd != -2) |
|
|
1937 | return; |
|
|
1938 | |
|
|
1939 | fs_fd = inotify_init (); |
|
|
1940 | |
|
|
1941 | if (fs_fd >= 0) |
|
|
1942 | { |
|
|
1943 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
|
|
1944 | ev_set_priority (&fs_w, EV_MAXPRI); |
|
|
1945 | ev_io_start (EV_A_ &fs_w); |
|
|
1946 | } |
|
|
1947 | } |
|
|
1948 | |
|
|
1949 | void inline_size |
|
|
1950 | infy_fork (EV_P) |
|
|
1951 | { |
|
|
1952 | int slot; |
|
|
1953 | |
|
|
1954 | if (fs_fd < 0) |
|
|
1955 | return; |
|
|
1956 | |
|
|
1957 | close (fs_fd); |
|
|
1958 | fs_fd = inotify_init (); |
|
|
1959 | |
|
|
1960 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
1961 | { |
|
|
1962 | WL w_ = fs_hash [slot].head; |
|
|
1963 | fs_hash [slot].head = 0; |
|
|
1964 | |
|
|
1965 | while (w_) |
|
|
1966 | { |
|
|
1967 | ev_stat *w = (ev_stat *)w_; |
|
|
1968 | w_ = w_->next; /* lets us add this watcher */ |
|
|
1969 | |
|
|
1970 | w->wd = -1; |
|
|
1971 | |
|
|
1972 | if (fs_fd >= 0) |
|
|
1973 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
1974 | else |
|
|
1975 | ev_timer_start (EV_A_ &w->timer); |
|
|
1976 | } |
|
|
1977 | |
|
|
1978 | } |
|
|
1979 | } |
|
|
1980 | |
|
|
1981 | #endif |
|
|
1982 | |
|
|
1983 | void |
|
|
1984 | ev_stat_stat (EV_P_ ev_stat *w) |
|
|
1985 | { |
|
|
1986 | if (lstat (w->path, &w->attr) < 0) |
|
|
1987 | w->attr.st_nlink = 0; |
|
|
1988 | else if (!w->attr.st_nlink) |
|
|
1989 | w->attr.st_nlink = 1; |
|
|
1990 | } |
|
|
1991 | |
|
|
1992 | static void noinline |
|
|
1993 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
|
|
1994 | { |
|
|
1995 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
|
|
1996 | |
|
|
1997 | /* we copy this here each the time so that */ |
|
|
1998 | /* prev has the old value when the callback gets invoked */ |
|
|
1999 | w->prev = w->attr; |
|
|
2000 | ev_stat_stat (EV_A_ w); |
|
|
2001 | |
|
|
2002 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
|
|
2003 | if ( |
|
|
2004 | w->prev.st_dev != w->attr.st_dev |
|
|
2005 | || w->prev.st_ino != w->attr.st_ino |
|
|
2006 | || w->prev.st_mode != w->attr.st_mode |
|
|
2007 | || w->prev.st_nlink != w->attr.st_nlink |
|
|
2008 | || w->prev.st_uid != w->attr.st_uid |
|
|
2009 | || w->prev.st_gid != w->attr.st_gid |
|
|
2010 | || w->prev.st_rdev != w->attr.st_rdev |
|
|
2011 | || w->prev.st_size != w->attr.st_size |
|
|
2012 | || w->prev.st_atime != w->attr.st_atime |
|
|
2013 | || w->prev.st_mtime != w->attr.st_mtime |
|
|
2014 | || w->prev.st_ctime != w->attr.st_ctime |
|
|
2015 | ) { |
|
|
2016 | #if EV_USE_INOTIFY |
|
|
2017 | infy_del (EV_A_ w); |
|
|
2018 | infy_add (EV_A_ w); |
|
|
2019 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
2020 | #endif |
|
|
2021 | |
|
|
2022 | ev_feed_event (EV_A_ w, EV_STAT); |
|
|
2023 | } |
|
|
2024 | } |
|
|
2025 | |
|
|
2026 | void |
|
|
2027 | ev_stat_start (EV_P_ ev_stat *w) |
|
|
2028 | { |
|
|
2029 | if (expect_false (ev_is_active (w))) |
|
|
2030 | return; |
|
|
2031 | |
|
|
2032 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2033 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2034 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2035 | |
|
|
2036 | ev_stat_stat (EV_A_ w); |
|
|
2037 | |
|
|
2038 | if (w->interval < MIN_STAT_INTERVAL) |
|
|
2039 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2040 | |
|
|
2041 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
|
|
2042 | ev_set_priority (&w->timer, ev_priority (w)); |
|
|
2043 | |
|
|
2044 | #if EV_USE_INOTIFY |
|
|
2045 | infy_init (EV_A); |
|
|
2046 | |
|
|
2047 | if (fs_fd >= 0) |
|
|
2048 | infy_add (EV_A_ w); |
|
|
2049 | else |
|
|
2050 | #endif |
|
|
2051 | ev_timer_start (EV_A_ &w->timer); |
|
|
2052 | |
|
|
2053 | ev_start (EV_A_ (W)w, 1); |
|
|
2054 | } |
|
|
2055 | |
|
|
2056 | void |
|
|
2057 | ev_stat_stop (EV_P_ ev_stat *w) |
|
|
2058 | { |
|
|
2059 | clear_pending (EV_A_ (W)w); |
|
|
2060 | if (expect_false (!ev_is_active (w))) |
|
|
2061 | return; |
|
|
2062 | |
|
|
2063 | #if EV_USE_INOTIFY |
|
|
2064 | infy_del (EV_A_ w); |
|
|
2065 | #endif |
|
|
2066 | ev_timer_stop (EV_A_ &w->timer); |
|
|
2067 | |
|
|
2068 | ev_stop (EV_A_ (W)w); |
|
|
2069 | } |
|
|
2070 | #endif |
|
|
2071 | |
|
|
2072 | #if EV_IDLE_ENABLE |
|
|
2073 | void |
|
|
2074 | ev_idle_start (EV_P_ ev_idle *w) |
|
|
2075 | { |
|
|
2076 | if (expect_false (ev_is_active (w))) |
|
|
2077 | return; |
|
|
2078 | |
|
|
2079 | pri_adjust (EV_A_ (W)w); |
|
|
2080 | |
|
|
2081 | { |
|
|
2082 | int active = ++idlecnt [ABSPRI (w)]; |
|
|
2083 | |
|
|
2084 | ++idleall; |
|
|
2085 | ev_start (EV_A_ (W)w, active); |
|
|
2086 | |
|
|
2087 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
|
|
2088 | idles [ABSPRI (w)][active - 1] = w; |
|
|
2089 | } |
|
|
2090 | } |
|
|
2091 | |
|
|
2092 | void |
|
|
2093 | ev_idle_stop (EV_P_ ev_idle *w) |
|
|
2094 | { |
|
|
2095 | clear_pending (EV_A_ (W)w); |
|
|
2096 | if (expect_false (!ev_is_active (w))) |
|
|
2097 | return; |
|
|
2098 | |
|
|
2099 | { |
|
|
2100 | int active = ((W)w)->active; |
|
|
2101 | |
|
|
2102 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
|
|
2103 | ((W)idles [ABSPRI (w)][active - 1])->active = active; |
|
|
2104 | |
|
|
2105 | ev_stop (EV_A_ (W)w); |
|
|
2106 | --idleall; |
|
|
2107 | } |
|
|
2108 | } |
|
|
2109 | #endif |
|
|
2110 | |
|
|
2111 | void |
|
|
2112 | ev_prepare_start (EV_P_ ev_prepare *w) |
|
|
2113 | { |
|
|
2114 | if (expect_false (ev_is_active (w))) |
|
|
2115 | return; |
|
|
2116 | |
|
|
2117 | ev_start (EV_A_ (W)w, ++preparecnt); |
|
|
2118 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
|
|
2119 | prepares [preparecnt - 1] = w; |
|
|
2120 | } |
|
|
2121 | |
|
|
2122 | void |
|
|
2123 | ev_prepare_stop (EV_P_ ev_prepare *w) |
|
|
2124 | { |
|
|
2125 | clear_pending (EV_A_ (W)w); |
|
|
2126 | if (expect_false (!ev_is_active (w))) |
|
|
2127 | return; |
|
|
2128 | |
|
|
2129 | { |
|
|
2130 | int active = ((W)w)->active; |
|
|
2131 | prepares [active - 1] = prepares [--preparecnt]; |
|
|
2132 | ((W)prepares [active - 1])->active = active; |
|
|
2133 | } |
|
|
2134 | |
|
|
2135 | ev_stop (EV_A_ (W)w); |
|
|
2136 | } |
|
|
2137 | |
|
|
2138 | void |
|
|
2139 | ev_check_start (EV_P_ ev_check *w) |
|
|
2140 | { |
|
|
2141 | if (expect_false (ev_is_active (w))) |
|
|
2142 | return; |
|
|
2143 | |
|
|
2144 | ev_start (EV_A_ (W)w, ++checkcnt); |
|
|
2145 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
|
|
2146 | checks [checkcnt - 1] = w; |
|
|
2147 | } |
|
|
2148 | |
|
|
2149 | void |
|
|
2150 | ev_check_stop (EV_P_ ev_check *w) |
|
|
2151 | { |
|
|
2152 | clear_pending (EV_A_ (W)w); |
|
|
2153 | if (expect_false (!ev_is_active (w))) |
|
|
2154 | return; |
|
|
2155 | |
|
|
2156 | { |
|
|
2157 | int active = ((W)w)->active; |
|
|
2158 | checks [active - 1] = checks [--checkcnt]; |
|
|
2159 | ((W)checks [active - 1])->active = active; |
|
|
2160 | } |
|
|
2161 | |
|
|
2162 | ev_stop (EV_A_ (W)w); |
|
|
2163 | } |
|
|
2164 | |
|
|
2165 | #if EV_EMBED_ENABLE |
|
|
2166 | void noinline |
|
|
2167 | ev_embed_sweep (EV_P_ ev_embed *w) |
|
|
2168 | { |
|
|
2169 | ev_loop (w->loop, EVLOOP_NONBLOCK); |
|
|
2170 | } |
|
|
2171 | |
|
|
2172 | static void |
|
|
2173 | embed_cb (EV_P_ ev_io *io, int revents) |
|
|
2174 | { |
|
|
2175 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
|
|
2176 | |
|
|
2177 | if (ev_cb (w)) |
|
|
2178 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
|
|
2179 | else |
|
|
2180 | ev_embed_sweep (loop, w); |
|
|
2181 | } |
|
|
2182 | |
|
|
2183 | void |
|
|
2184 | ev_embed_start (EV_P_ ev_embed *w) |
|
|
2185 | { |
|
|
2186 | if (expect_false (ev_is_active (w))) |
|
|
2187 | return; |
|
|
2188 | |
|
|
2189 | { |
|
|
2190 | struct ev_loop *loop = w->loop; |
|
|
2191 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
|
|
2192 | ev_io_init (&w->io, embed_cb, backend_fd, EV_READ); |
|
|
2193 | } |
|
|
2194 | |
|
|
2195 | ev_set_priority (&w->io, ev_priority (w)); |
|
|
2196 | ev_io_start (EV_A_ &w->io); |
|
|
2197 | |
|
|
2198 | ev_start (EV_A_ (W)w, 1); |
|
|
2199 | } |
|
|
2200 | |
|
|
2201 | void |
|
|
2202 | ev_embed_stop (EV_P_ ev_embed *w) |
|
|
2203 | { |
|
|
2204 | clear_pending (EV_A_ (W)w); |
|
|
2205 | if (expect_false (!ev_is_active (w))) |
|
|
2206 | return; |
|
|
2207 | |
|
|
2208 | ev_io_stop (EV_A_ &w->io); |
|
|
2209 | |
|
|
2210 | ev_stop (EV_A_ (W)w); |
|
|
2211 | } |
|
|
2212 | #endif |
|
|
2213 | |
|
|
2214 | #if EV_FORK_ENABLE |
|
|
2215 | void |
|
|
2216 | ev_fork_start (EV_P_ ev_fork *w) |
|
|
2217 | { |
|
|
2218 | if (expect_false (ev_is_active (w))) |
|
|
2219 | return; |
|
|
2220 | |
|
|
2221 | ev_start (EV_A_ (W)w, ++forkcnt); |
|
|
2222 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
|
|
2223 | forks [forkcnt - 1] = w; |
|
|
2224 | } |
|
|
2225 | |
|
|
2226 | void |
|
|
2227 | ev_fork_stop (EV_P_ ev_fork *w) |
|
|
2228 | { |
|
|
2229 | clear_pending (EV_A_ (W)w); |
|
|
2230 | if (expect_false (!ev_is_active (w))) |
|
|
2231 | return; |
|
|
2232 | |
|
|
2233 | { |
|
|
2234 | int active = ((W)w)->active; |
|
|
2235 | forks [active - 1] = forks [--forkcnt]; |
|
|
2236 | ((W)forks [active - 1])->active = active; |
|
|
2237 | } |
|
|
2238 | |
|
|
2239 | ev_stop (EV_A_ (W)w); |
|
|
2240 | } |
|
|
2241 | #endif |
|
|
2242 | |
1658 | /*****************************************************************************/ |
2243 | /*****************************************************************************/ |
1659 | |
2244 | |
1660 | struct ev_once |
2245 | struct ev_once |
1661 | { |
2246 | { |
1662 | struct ev_io io; |
2247 | ev_io io; |
1663 | struct ev_timer to; |
2248 | ev_timer to; |
1664 | void (*cb)(int revents, void *arg); |
2249 | void (*cb)(int revents, void *arg); |
1665 | void *arg; |
2250 | void *arg; |
1666 | }; |
2251 | }; |
1667 | |
2252 | |
1668 | static void |
2253 | static void |
… | |
… | |
1677 | |
2262 | |
1678 | cb (revents, arg); |
2263 | cb (revents, arg); |
1679 | } |
2264 | } |
1680 | |
2265 | |
1681 | static void |
2266 | static void |
1682 | once_cb_io (EV_P_ struct ev_io *w, int revents) |
2267 | once_cb_io (EV_P_ ev_io *w, int revents) |
1683 | { |
2268 | { |
1684 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
2269 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
1685 | } |
2270 | } |
1686 | |
2271 | |
1687 | static void |
2272 | static void |
1688 | once_cb_to (EV_P_ struct ev_timer *w, int revents) |
2273 | once_cb_to (EV_P_ ev_timer *w, int revents) |
1689 | { |
2274 | { |
1690 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
2275 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
1691 | } |
2276 | } |
1692 | |
2277 | |
1693 | void |
2278 | void |