… | |
… | |
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 | * Better solutions welcome. |
|
|
228 | */ |
|
|
229 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
174 | |
230 | |
175 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
231 | #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) */ |
232 | #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 */ |
233 | /*#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 | |
234 | |
186 | #if __GNUC__ >= 3 |
235 | #if __GNUC__ >= 3 |
187 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
236 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
188 | # define inline static inline |
237 | # define noinline __attribute__ ((noinline)) |
189 | #else |
238 | #else |
190 | # define expect(expr,value) (expr) |
239 | # define expect(expr,value) (expr) |
191 | # define inline static |
240 | # define noinline |
|
|
241 | # if __STDC_VERSION__ < 199901L |
|
|
242 | # define inline |
|
|
243 | # endif |
192 | #endif |
244 | #endif |
193 | |
245 | |
194 | #define expect_false(expr) expect ((expr) != 0, 0) |
246 | #define expect_false(expr) expect ((expr) != 0, 0) |
195 | #define expect_true(expr) expect ((expr) != 0, 1) |
247 | #define expect_true(expr) expect ((expr) != 0, 1) |
|
|
248 | #define inline_size static inline |
|
|
249 | |
|
|
250 | #if EV_MINIMAL |
|
|
251 | # define inline_speed static noinline |
|
|
252 | #else |
|
|
253 | # define inline_speed static inline |
|
|
254 | #endif |
196 | |
255 | |
197 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
256 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
198 | #define ABSPRI(w) ((w)->priority - EV_MINPRI) |
257 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
199 | |
258 | |
200 | #define EMPTY0 /* required for microsofts broken pseudo-c compiler */ |
259 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
201 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
260 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
202 | |
261 | |
203 | typedef struct ev_watcher *W; |
262 | typedef ev_watcher *W; |
204 | typedef struct ev_watcher_list *WL; |
263 | typedef ev_watcher_list *WL; |
205 | typedef struct ev_watcher_time *WT; |
264 | typedef ev_watcher_time *WT; |
206 | |
265 | |
207 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
266 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
208 | |
267 | |
209 | #ifdef _WIN32 |
268 | #ifdef _WIN32 |
210 | # include "ev_win32.c" |
269 | # include "ev_win32.c" |
… | |
… | |
212 | |
271 | |
213 | /*****************************************************************************/ |
272 | /*****************************************************************************/ |
214 | |
273 | |
215 | static void (*syserr_cb)(const char *msg); |
274 | static void (*syserr_cb)(const char *msg); |
216 | |
275 | |
|
|
276 | void |
217 | void ev_set_syserr_cb (void (*cb)(const char *msg)) |
277 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
218 | { |
278 | { |
219 | syserr_cb = cb; |
279 | syserr_cb = cb; |
220 | } |
280 | } |
221 | |
281 | |
222 | static void |
282 | static void noinline |
223 | syserr (const char *msg) |
283 | syserr (const char *msg) |
224 | { |
284 | { |
225 | if (!msg) |
285 | if (!msg) |
226 | msg = "(libev) system error"; |
286 | msg = "(libev) system error"; |
227 | |
287 | |
… | |
… | |
234 | } |
294 | } |
235 | } |
295 | } |
236 | |
296 | |
237 | static void *(*alloc)(void *ptr, long size); |
297 | static void *(*alloc)(void *ptr, long size); |
238 | |
298 | |
|
|
299 | void |
239 | void ev_set_allocator (void *(*cb)(void *ptr, long size)) |
300 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
240 | { |
301 | { |
241 | alloc = cb; |
302 | alloc = cb; |
242 | } |
303 | } |
243 | |
304 | |
244 | static void * |
305 | inline_speed void * |
245 | ev_realloc (void *ptr, long size) |
306 | ev_realloc (void *ptr, long size) |
246 | { |
307 | { |
247 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
308 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
248 | |
309 | |
249 | if (!ptr && size) |
310 | if (!ptr && size) |
… | |
… | |
273 | typedef struct |
334 | typedef struct |
274 | { |
335 | { |
275 | W w; |
336 | W w; |
276 | int events; |
337 | int events; |
277 | } ANPENDING; |
338 | } ANPENDING; |
|
|
339 | |
|
|
340 | #if EV_USE_INOTIFY |
|
|
341 | typedef struct |
|
|
342 | { |
|
|
343 | WL head; |
|
|
344 | } ANFS; |
|
|
345 | #endif |
278 | |
346 | |
279 | #if EV_MULTIPLICITY |
347 | #if EV_MULTIPLICITY |
280 | |
348 | |
281 | struct ev_loop |
349 | struct ev_loop |
282 | { |
350 | { |
… | |
… | |
316 | gettimeofday (&tv, 0); |
384 | gettimeofday (&tv, 0); |
317 | return tv.tv_sec + tv.tv_usec * 1e-6; |
385 | return tv.tv_sec + tv.tv_usec * 1e-6; |
318 | #endif |
386 | #endif |
319 | } |
387 | } |
320 | |
388 | |
321 | inline ev_tstamp |
389 | ev_tstamp inline_size |
322 | get_clock (void) |
390 | get_clock (void) |
323 | { |
391 | { |
324 | #if EV_USE_MONOTONIC |
392 | #if EV_USE_MONOTONIC |
325 | if (expect_true (have_monotonic)) |
393 | if (expect_true (have_monotonic)) |
326 | { |
394 | { |
… | |
… | |
339 | { |
407 | { |
340 | return ev_rt_now; |
408 | return ev_rt_now; |
341 | } |
409 | } |
342 | #endif |
410 | #endif |
343 | |
411 | |
344 | #define array_roundsize(type,n) (((n) | 4) & ~3) |
412 | int inline_size |
|
|
413 | array_nextsize (int elem, int cur, int cnt) |
|
|
414 | { |
|
|
415 | int ncur = cur + 1; |
|
|
416 | |
|
|
417 | do |
|
|
418 | ncur <<= 1; |
|
|
419 | while (cnt > ncur); |
|
|
420 | |
|
|
421 | /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */ |
|
|
422 | if (elem * ncur > 4096) |
|
|
423 | { |
|
|
424 | ncur *= elem; |
|
|
425 | ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095; |
|
|
426 | ncur = ncur - sizeof (void *) * 4; |
|
|
427 | ncur /= elem; |
|
|
428 | } |
|
|
429 | |
|
|
430 | return ncur; |
|
|
431 | } |
|
|
432 | |
|
|
433 | static noinline void * |
|
|
434 | array_realloc (int elem, void *base, int *cur, int cnt) |
|
|
435 | { |
|
|
436 | *cur = array_nextsize (elem, *cur, cnt); |
|
|
437 | return ev_realloc (base, elem * *cur); |
|
|
438 | } |
345 | |
439 | |
346 | #define array_needsize(type,base,cur,cnt,init) \ |
440 | #define array_needsize(type,base,cur,cnt,init) \ |
347 | if (expect_false ((cnt) > cur)) \ |
441 | if (expect_false ((cnt) > (cur))) \ |
348 | { \ |
442 | { \ |
349 | int newcnt = cur; \ |
443 | int ocur_ = (cur); \ |
350 | do \ |
444 | (base) = (type *)array_realloc \ |
351 | { \ |
445 | (sizeof (type), (base), &(cur), (cnt)); \ |
352 | newcnt = array_roundsize (type, newcnt << 1); \ |
446 | 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 | } |
447 | } |
360 | |
448 | |
|
|
449 | #if 0 |
361 | #define array_slim(type,stem) \ |
450 | #define array_slim(type,stem) \ |
362 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
451 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
363 | { \ |
452 | { \ |
364 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
453 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
365 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
454 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
366 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
455 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
367 | } |
456 | } |
|
|
457 | #endif |
368 | |
458 | |
369 | #define array_free(stem, idx) \ |
459 | #define array_free(stem, idx) \ |
370 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
460 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
371 | |
461 | |
372 | /*****************************************************************************/ |
462 | /*****************************************************************************/ |
373 | |
463 | |
374 | static void |
464 | void noinline |
|
|
465 | ev_feed_event (EV_P_ void *w, int revents) |
|
|
466 | { |
|
|
467 | W w_ = (W)w; |
|
|
468 | int pri = ABSPRI (w_); |
|
|
469 | |
|
|
470 | if (expect_false (w_->pending)) |
|
|
471 | pendings [pri][w_->pending - 1].events |= revents; |
|
|
472 | else |
|
|
473 | { |
|
|
474 | w_->pending = ++pendingcnt [pri]; |
|
|
475 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
|
|
476 | pendings [pri][w_->pending - 1].w = w_; |
|
|
477 | pendings [pri][w_->pending - 1].events = revents; |
|
|
478 | } |
|
|
479 | } |
|
|
480 | |
|
|
481 | void inline_size |
|
|
482 | queue_events (EV_P_ W *events, int eventcnt, int type) |
|
|
483 | { |
|
|
484 | int i; |
|
|
485 | |
|
|
486 | for (i = 0; i < eventcnt; ++i) |
|
|
487 | ev_feed_event (EV_A_ events [i], type); |
|
|
488 | } |
|
|
489 | |
|
|
490 | /*****************************************************************************/ |
|
|
491 | |
|
|
492 | void inline_size |
375 | anfds_init (ANFD *base, int count) |
493 | anfds_init (ANFD *base, int count) |
376 | { |
494 | { |
377 | while (count--) |
495 | while (count--) |
378 | { |
496 | { |
379 | base->head = 0; |
497 | base->head = 0; |
… | |
… | |
382 | |
500 | |
383 | ++base; |
501 | ++base; |
384 | } |
502 | } |
385 | } |
503 | } |
386 | |
504 | |
387 | void |
505 | 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) |
506 | fd_event (EV_P_ int fd, int revents) |
415 | { |
507 | { |
416 | ANFD *anfd = anfds + fd; |
508 | ANFD *anfd = anfds + fd; |
417 | struct ev_io *w; |
509 | ev_io *w; |
418 | |
510 | |
419 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
511 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
420 | { |
512 | { |
421 | int ev = w->events & revents; |
513 | int ev = w->events & revents; |
422 | |
514 | |
423 | if (ev) |
515 | if (ev) |
424 | ev_feed_event (EV_A_ (W)w, ev); |
516 | ev_feed_event (EV_A_ (W)w, ev); |
… | |
… | |
426 | } |
518 | } |
427 | |
519 | |
428 | void |
520 | void |
429 | ev_feed_fd_event (EV_P_ int fd, int revents) |
521 | ev_feed_fd_event (EV_P_ int fd, int revents) |
430 | { |
522 | { |
|
|
523 | if (fd >= 0 && fd < anfdmax) |
431 | fd_event (EV_A_ fd, revents); |
524 | fd_event (EV_A_ fd, revents); |
432 | } |
525 | } |
433 | |
526 | |
434 | /*****************************************************************************/ |
527 | void inline_size |
435 | |
|
|
436 | inline void |
|
|
437 | fd_reify (EV_P) |
528 | fd_reify (EV_P) |
438 | { |
529 | { |
439 | int i; |
530 | int i; |
440 | |
531 | |
441 | for (i = 0; i < fdchangecnt; ++i) |
532 | for (i = 0; i < fdchangecnt; ++i) |
442 | { |
533 | { |
443 | int fd = fdchanges [i]; |
534 | int fd = fdchanges [i]; |
444 | ANFD *anfd = anfds + fd; |
535 | ANFD *anfd = anfds + fd; |
445 | struct ev_io *w; |
536 | ev_io *w; |
446 | |
537 | |
447 | int events = 0; |
538 | int events = 0; |
448 | |
539 | |
449 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
540 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
450 | events |= w->events; |
541 | events |= w->events; |
451 | |
542 | |
452 | #if EV_SELECT_IS_WINSOCKET |
543 | #if EV_SELECT_IS_WINSOCKET |
453 | if (events) |
544 | if (events) |
454 | { |
545 | { |
… | |
… | |
465 | } |
556 | } |
466 | |
557 | |
467 | fdchangecnt = 0; |
558 | fdchangecnt = 0; |
468 | } |
559 | } |
469 | |
560 | |
470 | static void |
561 | void inline_size |
471 | fd_change (EV_P_ int fd) |
562 | fd_change (EV_P_ int fd) |
472 | { |
563 | { |
473 | if (expect_false (anfds [fd].reify)) |
564 | if (expect_false (anfds [fd].reify)) |
474 | return; |
565 | return; |
475 | |
566 | |
… | |
… | |
478 | ++fdchangecnt; |
569 | ++fdchangecnt; |
479 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
570 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
480 | fdchanges [fdchangecnt - 1] = fd; |
571 | fdchanges [fdchangecnt - 1] = fd; |
481 | } |
572 | } |
482 | |
573 | |
483 | static void |
574 | void inline_speed |
484 | fd_kill (EV_P_ int fd) |
575 | fd_kill (EV_P_ int fd) |
485 | { |
576 | { |
486 | struct ev_io *w; |
577 | ev_io *w; |
487 | |
578 | |
488 | while ((w = (struct ev_io *)anfds [fd].head)) |
579 | while ((w = (ev_io *)anfds [fd].head)) |
489 | { |
580 | { |
490 | ev_io_stop (EV_A_ w); |
581 | ev_io_stop (EV_A_ w); |
491 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
582 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
492 | } |
583 | } |
493 | } |
584 | } |
494 | |
585 | |
495 | inline int |
586 | int inline_size |
496 | fd_valid (int fd) |
587 | fd_valid (int fd) |
497 | { |
588 | { |
498 | #ifdef _WIN32 |
589 | #ifdef _WIN32 |
499 | return _get_osfhandle (fd) != -1; |
590 | return _get_osfhandle (fd) != -1; |
500 | #else |
591 | #else |
501 | return fcntl (fd, F_GETFD) != -1; |
592 | return fcntl (fd, F_GETFD) != -1; |
502 | #endif |
593 | #endif |
503 | } |
594 | } |
504 | |
595 | |
505 | /* called on EBADF to verify fds */ |
596 | /* called on EBADF to verify fds */ |
506 | static void |
597 | static void noinline |
507 | fd_ebadf (EV_P) |
598 | fd_ebadf (EV_P) |
508 | { |
599 | { |
509 | int fd; |
600 | int fd; |
510 | |
601 | |
511 | for (fd = 0; fd < anfdmax; ++fd) |
602 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
513 | if (!fd_valid (fd) == -1 && errno == EBADF) |
604 | if (!fd_valid (fd) == -1 && errno == EBADF) |
514 | fd_kill (EV_A_ fd); |
605 | fd_kill (EV_A_ fd); |
515 | } |
606 | } |
516 | |
607 | |
517 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
608 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
518 | static void |
609 | static void noinline |
519 | fd_enomem (EV_P) |
610 | fd_enomem (EV_P) |
520 | { |
611 | { |
521 | int fd; |
612 | int fd; |
522 | |
613 | |
523 | for (fd = anfdmax; fd--; ) |
614 | for (fd = anfdmax; fd--; ) |
… | |
… | |
527 | return; |
618 | return; |
528 | } |
619 | } |
529 | } |
620 | } |
530 | |
621 | |
531 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
622 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
532 | static void |
623 | static void noinline |
533 | fd_rearm_all (EV_P) |
624 | fd_rearm_all (EV_P) |
534 | { |
625 | { |
535 | int fd; |
626 | int fd; |
536 | |
627 | |
537 | /* this should be highly optimised to not do anything but set a flag */ |
|
|
538 | for (fd = 0; fd < anfdmax; ++fd) |
628 | for (fd = 0; fd < anfdmax; ++fd) |
539 | if (anfds [fd].events) |
629 | if (anfds [fd].events) |
540 | { |
630 | { |
541 | anfds [fd].events = 0; |
631 | anfds [fd].events = 0; |
542 | fd_change (EV_A_ fd); |
632 | fd_change (EV_A_ fd); |
543 | } |
633 | } |
544 | } |
634 | } |
545 | |
635 | |
546 | /*****************************************************************************/ |
636 | /*****************************************************************************/ |
547 | |
637 | |
548 | static void |
638 | void inline_speed |
549 | upheap (WT *heap, int k) |
639 | upheap (WT *heap, int k) |
550 | { |
640 | { |
551 | WT w = heap [k]; |
641 | WT w = heap [k]; |
552 | |
642 | |
553 | while (k && heap [k >> 1]->at > w->at) |
643 | while (k && heap [k >> 1]->at > w->at) |
… | |
… | |
560 | heap [k] = w; |
650 | heap [k] = w; |
561 | ((W)heap [k])->active = k + 1; |
651 | ((W)heap [k])->active = k + 1; |
562 | |
652 | |
563 | } |
653 | } |
564 | |
654 | |
565 | static void |
655 | void inline_speed |
566 | downheap (WT *heap, int N, int k) |
656 | downheap (WT *heap, int N, int k) |
567 | { |
657 | { |
568 | WT w = heap [k]; |
658 | WT w = heap [k]; |
569 | |
659 | |
570 | while (k < (N >> 1)) |
660 | while (k < (N >> 1)) |
… | |
… | |
584 | |
674 | |
585 | heap [k] = w; |
675 | heap [k] = w; |
586 | ((W)heap [k])->active = k + 1; |
676 | ((W)heap [k])->active = k + 1; |
587 | } |
677 | } |
588 | |
678 | |
589 | inline void |
679 | void inline_size |
590 | adjustheap (WT *heap, int N, int k) |
680 | adjustheap (WT *heap, int N, int k) |
591 | { |
681 | { |
592 | upheap (heap, k); |
682 | upheap (heap, k); |
593 | downheap (heap, N, k); |
683 | downheap (heap, N, k); |
594 | } |
684 | } |
… | |
… | |
604 | static ANSIG *signals; |
694 | static ANSIG *signals; |
605 | static int signalmax; |
695 | static int signalmax; |
606 | |
696 | |
607 | static int sigpipe [2]; |
697 | static int sigpipe [2]; |
608 | static sig_atomic_t volatile gotsig; |
698 | static sig_atomic_t volatile gotsig; |
609 | static struct ev_io sigev; |
699 | static ev_io sigev; |
610 | |
700 | |
611 | static void |
701 | void inline_size |
612 | signals_init (ANSIG *base, int count) |
702 | signals_init (ANSIG *base, int count) |
613 | { |
703 | { |
614 | while (count--) |
704 | while (count--) |
615 | { |
705 | { |
616 | base->head = 0; |
706 | base->head = 0; |
… | |
… | |
636 | write (sigpipe [1], &signum, 1); |
726 | write (sigpipe [1], &signum, 1); |
637 | errno = old_errno; |
727 | errno = old_errno; |
638 | } |
728 | } |
639 | } |
729 | } |
640 | |
730 | |
641 | void |
731 | void noinline |
642 | ev_feed_signal_event (EV_P_ int signum) |
732 | ev_feed_signal_event (EV_P_ int signum) |
643 | { |
733 | { |
644 | WL w; |
734 | WL w; |
645 | |
735 | |
646 | #if EV_MULTIPLICITY |
736 | #if EV_MULTIPLICITY |
… | |
… | |
657 | for (w = signals [signum].head; w; w = w->next) |
747 | for (w = signals [signum].head; w; w = w->next) |
658 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
748 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
659 | } |
749 | } |
660 | |
750 | |
661 | static void |
751 | static void |
662 | sigcb (EV_P_ struct ev_io *iow, int revents) |
752 | sigcb (EV_P_ ev_io *iow, int revents) |
663 | { |
753 | { |
664 | int signum; |
754 | int signum; |
665 | |
755 | |
666 | read (sigpipe [0], &revents, 1); |
756 | read (sigpipe [0], &revents, 1); |
667 | gotsig = 0; |
757 | gotsig = 0; |
… | |
… | |
669 | for (signum = signalmax; signum--; ) |
759 | for (signum = signalmax; signum--; ) |
670 | if (signals [signum].gotsig) |
760 | if (signals [signum].gotsig) |
671 | ev_feed_signal_event (EV_A_ signum + 1); |
761 | ev_feed_signal_event (EV_A_ signum + 1); |
672 | } |
762 | } |
673 | |
763 | |
674 | static void |
764 | void inline_speed |
675 | fd_intern (int fd) |
765 | fd_intern (int fd) |
676 | { |
766 | { |
677 | #ifdef _WIN32 |
767 | #ifdef _WIN32 |
678 | int arg = 1; |
768 | int arg = 1; |
679 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
769 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
… | |
… | |
681 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
771 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
682 | fcntl (fd, F_SETFL, O_NONBLOCK); |
772 | fcntl (fd, F_SETFL, O_NONBLOCK); |
683 | #endif |
773 | #endif |
684 | } |
774 | } |
685 | |
775 | |
686 | static void |
776 | static void noinline |
687 | siginit (EV_P) |
777 | siginit (EV_P) |
688 | { |
778 | { |
689 | fd_intern (sigpipe [0]); |
779 | fd_intern (sigpipe [0]); |
690 | fd_intern (sigpipe [1]); |
780 | fd_intern (sigpipe [1]); |
691 | |
781 | |
… | |
… | |
694 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
784 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
695 | } |
785 | } |
696 | |
786 | |
697 | /*****************************************************************************/ |
787 | /*****************************************************************************/ |
698 | |
788 | |
699 | static struct ev_child *childs [PID_HASHSIZE]; |
789 | static ev_child *childs [EV_PID_HASHSIZE]; |
700 | |
790 | |
701 | #ifndef _WIN32 |
791 | #ifndef _WIN32 |
702 | |
792 | |
703 | static struct ev_signal childev; |
793 | static ev_signal childev; |
|
|
794 | |
|
|
795 | void inline_speed |
|
|
796 | child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) |
|
|
797 | { |
|
|
798 | ev_child *w; |
|
|
799 | |
|
|
800 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
801 | if (w->pid == pid || !w->pid) |
|
|
802 | { |
|
|
803 | ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */ |
|
|
804 | w->rpid = pid; |
|
|
805 | w->rstatus = status; |
|
|
806 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
|
|
807 | } |
|
|
808 | } |
704 | |
809 | |
705 | #ifndef WCONTINUED |
810 | #ifndef WCONTINUED |
706 | # define WCONTINUED 0 |
811 | # define WCONTINUED 0 |
707 | #endif |
812 | #endif |
708 | |
813 | |
709 | static void |
814 | 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) |
815 | childcb (EV_P_ ev_signal *sw, int revents) |
726 | { |
816 | { |
727 | int pid, status; |
817 | int pid, status; |
728 | |
818 | |
|
|
819 | /* some systems define WCONTINUED but then fail to support it (linux 2.4) */ |
729 | if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
820 | if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
730 | { |
821 | if (!WCONTINUED |
|
|
822 | || errno != EINVAL |
|
|
823 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
|
|
824 | return; |
|
|
825 | |
731 | /* make sure we are called again until all childs have been reaped */ |
826 | /* make sure we are called again until all childs have been reaped */ |
|
|
827 | /* 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); |
828 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
733 | |
829 | |
734 | child_reap (EV_A_ sw, pid, pid, status); |
830 | child_reap (EV_A_ sw, pid, pid, status); |
|
|
831 | if (EV_PID_HASHSIZE > 1) |
735 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ |
832 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
736 | } |
|
|
737 | } |
833 | } |
738 | |
834 | |
739 | #endif |
835 | #endif |
740 | |
836 | |
741 | /*****************************************************************************/ |
837 | /*****************************************************************************/ |
… | |
… | |
767 | { |
863 | { |
768 | return EV_VERSION_MINOR; |
864 | return EV_VERSION_MINOR; |
769 | } |
865 | } |
770 | |
866 | |
771 | /* return true if we are running with elevated privileges and should ignore env variables */ |
867 | /* return true if we are running with elevated privileges and should ignore env variables */ |
772 | static int |
868 | int inline_size |
773 | enable_secure (void) |
869 | enable_secure (void) |
774 | { |
870 | { |
775 | #ifdef _WIN32 |
871 | #ifdef _WIN32 |
776 | return 0; |
872 | return 0; |
777 | #else |
873 | #else |
… | |
… | |
795 | } |
891 | } |
796 | |
892 | |
797 | unsigned int |
893 | unsigned int |
798 | ev_recommended_backends (void) |
894 | ev_recommended_backends (void) |
799 | { |
895 | { |
800 | unsigned int flags = ev_recommended_backends (); |
896 | unsigned int flags = ev_supported_backends (); |
801 | |
897 | |
802 | #ifndef __NetBSD__ |
898 | #ifndef __NetBSD__ |
803 | /* kqueue is borked on everything but netbsd apparently */ |
899 | /* kqueue is borked on everything but netbsd apparently */ |
804 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
900 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
805 | flags &= ~EVBACKEND_KQUEUE; |
901 | flags &= ~EVBACKEND_KQUEUE; |
… | |
… | |
811 | |
907 | |
812 | return flags; |
908 | return flags; |
813 | } |
909 | } |
814 | |
910 | |
815 | unsigned int |
911 | unsigned int |
|
|
912 | ev_embeddable_backends (void) |
|
|
913 | { |
|
|
914 | return EVBACKEND_EPOLL |
|
|
915 | | EVBACKEND_KQUEUE |
|
|
916 | | EVBACKEND_PORT; |
|
|
917 | } |
|
|
918 | |
|
|
919 | unsigned int |
816 | ev_backend (EV_P) |
920 | ev_backend (EV_P) |
817 | { |
921 | { |
818 | return backend; |
922 | return backend; |
819 | } |
923 | } |
820 | |
924 | |
821 | static void |
925 | unsigned int |
|
|
926 | ev_loop_count (EV_P) |
|
|
927 | { |
|
|
928 | return loop_count; |
|
|
929 | } |
|
|
930 | |
|
|
931 | static void noinline |
822 | loop_init (EV_P_ unsigned int flags) |
932 | loop_init (EV_P_ unsigned int flags) |
823 | { |
933 | { |
824 | if (!backend) |
934 | if (!backend) |
825 | { |
935 | { |
826 | #if EV_USE_MONOTONIC |
936 | #if EV_USE_MONOTONIC |
… | |
… | |
834 | ev_rt_now = ev_time (); |
944 | ev_rt_now = ev_time (); |
835 | mn_now = get_clock (); |
945 | mn_now = get_clock (); |
836 | now_floor = mn_now; |
946 | now_floor = mn_now; |
837 | rtmn_diff = ev_rt_now - mn_now; |
947 | rtmn_diff = ev_rt_now - mn_now; |
838 | |
948 | |
|
|
949 | /* pid check not overridable via env */ |
|
|
950 | #ifndef _WIN32 |
|
|
951 | if (flags & EVFLAG_FORKCHECK) |
|
|
952 | curpid = getpid (); |
|
|
953 | #endif |
|
|
954 | |
839 | if (!(flags & EVFLAG_NOENV) |
955 | if (!(flags & EVFLAG_NOENV) |
840 | && !enable_secure () |
956 | && !enable_secure () |
841 | && getenv ("LIBEV_FLAGS")) |
957 | && getenv ("LIBEV_FLAGS")) |
842 | flags = atoi (getenv ("LIBEV_FLAGS")); |
958 | flags = atoi (getenv ("LIBEV_FLAGS")); |
843 | |
959 | |
844 | if (!(flags & 0x0000ffffUL)) |
960 | if (!(flags & 0x0000ffffUL)) |
845 | flags |= ev_recommended_backends (); |
961 | flags |= ev_recommended_backends (); |
846 | |
962 | |
847 | backend = 0; |
963 | backend = 0; |
|
|
964 | backend_fd = -1; |
|
|
965 | #if EV_USE_INOTIFY |
|
|
966 | fs_fd = -2; |
|
|
967 | #endif |
|
|
968 | |
848 | #if EV_USE_PORT |
969 | #if EV_USE_PORT |
849 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
970 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
850 | #endif |
971 | #endif |
851 | #if EV_USE_KQUEUE |
972 | #if EV_USE_KQUEUE |
852 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
973 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
… | |
… | |
864 | ev_init (&sigev, sigcb); |
985 | ev_init (&sigev, sigcb); |
865 | ev_set_priority (&sigev, EV_MAXPRI); |
986 | ev_set_priority (&sigev, EV_MAXPRI); |
866 | } |
987 | } |
867 | } |
988 | } |
868 | |
989 | |
869 | static void |
990 | static void noinline |
870 | loop_destroy (EV_P) |
991 | loop_destroy (EV_P) |
871 | { |
992 | { |
872 | int i; |
993 | int i; |
|
|
994 | |
|
|
995 | #if EV_USE_INOTIFY |
|
|
996 | if (fs_fd >= 0) |
|
|
997 | close (fs_fd); |
|
|
998 | #endif |
|
|
999 | |
|
|
1000 | if (backend_fd >= 0) |
|
|
1001 | close (backend_fd); |
873 | |
1002 | |
874 | #if EV_USE_PORT |
1003 | #if EV_USE_PORT |
875 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
1004 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
876 | #endif |
1005 | #endif |
877 | #if EV_USE_KQUEUE |
1006 | #if EV_USE_KQUEUE |
… | |
… | |
886 | #if EV_USE_SELECT |
1015 | #if EV_USE_SELECT |
887 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
1016 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
888 | #endif |
1017 | #endif |
889 | |
1018 | |
890 | for (i = NUMPRI; i--; ) |
1019 | for (i = NUMPRI; i--; ) |
|
|
1020 | { |
891 | array_free (pending, [i]); |
1021 | array_free (pending, [i]); |
|
|
1022 | #if EV_IDLE_ENABLE |
|
|
1023 | array_free (idle, [i]); |
|
|
1024 | #endif |
|
|
1025 | } |
892 | |
1026 | |
893 | /* have to use the microsoft-never-gets-it-right macro */ |
1027 | /* have to use the microsoft-never-gets-it-right macro */ |
894 | array_free (fdchange, EMPTY0); |
1028 | array_free (fdchange, EMPTY); |
895 | array_free (timer, EMPTY0); |
1029 | array_free (timer, EMPTY); |
896 | #if EV_PERIODICS |
1030 | #if EV_PERIODIC_ENABLE |
897 | array_free (periodic, EMPTY0); |
1031 | array_free (periodic, EMPTY); |
898 | #endif |
1032 | #endif |
899 | array_free (idle, EMPTY0); |
|
|
900 | array_free (prepare, EMPTY0); |
1033 | array_free (prepare, EMPTY); |
901 | array_free (check, EMPTY0); |
1034 | array_free (check, EMPTY); |
902 | |
1035 | |
903 | backend = 0; |
1036 | backend = 0; |
904 | } |
1037 | } |
905 | |
1038 | |
906 | static void |
1039 | void inline_size infy_fork (EV_P); |
|
|
1040 | |
|
|
1041 | void inline_size |
907 | loop_fork (EV_P) |
1042 | loop_fork (EV_P) |
908 | { |
1043 | { |
909 | #if EV_USE_PORT |
1044 | #if EV_USE_PORT |
910 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1045 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
911 | #endif |
1046 | #endif |
912 | #if EV_USE_KQUEUE |
1047 | #if EV_USE_KQUEUE |
913 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
1048 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
914 | #endif |
1049 | #endif |
915 | #if EV_USE_EPOLL |
1050 | #if EV_USE_EPOLL |
916 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
1051 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
|
|
1052 | #endif |
|
|
1053 | #if EV_USE_INOTIFY |
|
|
1054 | infy_fork (EV_A); |
917 | #endif |
1055 | #endif |
918 | |
1056 | |
919 | if (ev_is_active (&sigev)) |
1057 | if (ev_is_active (&sigev)) |
920 | { |
1058 | { |
921 | /* default loop */ |
1059 | /* default loop */ |
… | |
… | |
1037 | postfork = 1; |
1175 | postfork = 1; |
1038 | } |
1176 | } |
1039 | |
1177 | |
1040 | /*****************************************************************************/ |
1178 | /*****************************************************************************/ |
1041 | |
1179 | |
1042 | static int |
1180 | void |
1043 | any_pending (EV_P) |
1181 | ev_invoke (EV_P_ void *w, int revents) |
1044 | { |
1182 | { |
1045 | int pri; |
1183 | EV_CB_INVOKE ((W)w, revents); |
1046 | |
|
|
1047 | for (pri = NUMPRI; pri--; ) |
|
|
1048 | if (pendingcnt [pri]) |
|
|
1049 | return 1; |
|
|
1050 | |
|
|
1051 | return 0; |
|
|
1052 | } |
1184 | } |
1053 | |
1185 | |
1054 | inline void |
1186 | void inline_speed |
1055 | call_pending (EV_P) |
1187 | call_pending (EV_P) |
1056 | { |
1188 | { |
1057 | int pri; |
1189 | int pri; |
1058 | |
1190 | |
1059 | for (pri = NUMPRI; pri--; ) |
1191 | for (pri = NUMPRI; pri--; ) |
… | |
… | |
1061 | { |
1193 | { |
1062 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1194 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1063 | |
1195 | |
1064 | if (expect_true (p->w)) |
1196 | if (expect_true (p->w)) |
1065 | { |
1197 | { |
|
|
1198 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
|
|
1199 | |
1066 | p->w->pending = 0; |
1200 | p->w->pending = 0; |
1067 | EV_CB_INVOKE (p->w, p->events); |
1201 | EV_CB_INVOKE (p->w, p->events); |
1068 | } |
1202 | } |
1069 | } |
1203 | } |
1070 | } |
1204 | } |
1071 | |
1205 | |
1072 | inline void |
1206 | void inline_size |
1073 | timers_reify (EV_P) |
1207 | timers_reify (EV_P) |
1074 | { |
1208 | { |
1075 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
1209 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
1076 | { |
1210 | { |
1077 | struct ev_timer *w = timers [0]; |
1211 | ev_timer *w = timers [0]; |
1078 | |
1212 | |
1079 | assert (("inactive timer on timer heap detected", ev_is_active (w))); |
1213 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
1080 | |
1214 | |
1081 | /* first reschedule or stop timer */ |
1215 | /* first reschedule or stop timer */ |
1082 | if (w->repeat) |
1216 | if (w->repeat) |
1083 | { |
1217 | { |
1084 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1218 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
… | |
… | |
1094 | |
1228 | |
1095 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
1229 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
1096 | } |
1230 | } |
1097 | } |
1231 | } |
1098 | |
1232 | |
1099 | #if EV_PERIODICS |
1233 | #if EV_PERIODIC_ENABLE |
1100 | inline void |
1234 | void inline_size |
1101 | periodics_reify (EV_P) |
1235 | periodics_reify (EV_P) |
1102 | { |
1236 | { |
1103 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
1237 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
1104 | { |
1238 | { |
1105 | struct ev_periodic *w = periodics [0]; |
1239 | ev_periodic *w = periodics [0]; |
1106 | |
1240 | |
1107 | assert (("inactive timer on periodic heap detected", ev_is_active (w))); |
1241 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
1108 | |
1242 | |
1109 | /* first reschedule or stop timer */ |
1243 | /* first reschedule or stop timer */ |
1110 | if (w->reschedule_cb) |
1244 | if (w->reschedule_cb) |
1111 | { |
1245 | { |
1112 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); |
1246 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); |
1113 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
1247 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
1114 | downheap ((WT *)periodics, periodiccnt, 0); |
1248 | downheap ((WT *)periodics, periodiccnt, 0); |
1115 | } |
1249 | } |
1116 | else if (w->interval) |
1250 | else if (w->interval) |
1117 | { |
1251 | { |
1118 | ((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
1252 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1253 | if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval; |
1119 | 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)); |
1120 | downheap ((WT *)periodics, periodiccnt, 0); |
1255 | downheap ((WT *)periodics, periodiccnt, 0); |
1121 | } |
1256 | } |
1122 | else |
1257 | else |
1123 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1258 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1124 | |
1259 | |
1125 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
1260 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
1126 | } |
1261 | } |
1127 | } |
1262 | } |
1128 | |
1263 | |
1129 | static void |
1264 | static void noinline |
1130 | periodics_reschedule (EV_P) |
1265 | periodics_reschedule (EV_P) |
1131 | { |
1266 | { |
1132 | int i; |
1267 | int i; |
1133 | |
1268 | |
1134 | /* adjust periodics after time jump */ |
1269 | /* adjust periodics after time jump */ |
1135 | for (i = 0; i < periodiccnt; ++i) |
1270 | for (i = 0; i < periodiccnt; ++i) |
1136 | { |
1271 | { |
1137 | struct ev_periodic *w = periodics [i]; |
1272 | ev_periodic *w = periodics [i]; |
1138 | |
1273 | |
1139 | if (w->reschedule_cb) |
1274 | if (w->reschedule_cb) |
1140 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1275 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1141 | else if (w->interval) |
1276 | else if (w->interval) |
1142 | ((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; |
1143 | } |
1278 | } |
1144 | |
1279 | |
1145 | /* now rebuild the heap */ |
1280 | /* now rebuild the heap */ |
1146 | for (i = periodiccnt >> 1; i--; ) |
1281 | for (i = periodiccnt >> 1; i--; ) |
1147 | downheap ((WT *)periodics, periodiccnt, i); |
1282 | downheap ((WT *)periodics, periodiccnt, i); |
1148 | } |
1283 | } |
1149 | #endif |
1284 | #endif |
1150 | |
1285 | |
1151 | inline int |
1286 | #if EV_IDLE_ENABLE |
1152 | time_update_monotonic (EV_P) |
1287 | void inline_size |
|
|
1288 | idle_reify (EV_P) |
1153 | { |
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 | void inline_speed |
|
|
1310 | time_update (EV_P_ ev_tstamp max_block) |
|
|
1311 | { |
|
|
1312 | int i; |
|
|
1313 | |
|
|
1314 | #if EV_USE_MONOTONIC |
|
|
1315 | if (expect_true (have_monotonic)) |
|
|
1316 | { |
|
|
1317 | ev_tstamp odiff = rtmn_diff; |
|
|
1318 | |
1154 | mn_now = get_clock (); |
1319 | mn_now = get_clock (); |
1155 | |
1320 | |
|
|
1321 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
|
|
1322 | /* interpolate in the meantime */ |
1156 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1323 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1157 | { |
1324 | { |
1158 | ev_rt_now = rtmn_diff + mn_now; |
1325 | ev_rt_now = rtmn_diff + mn_now; |
1159 | return 0; |
1326 | return; |
1160 | } |
1327 | } |
1161 | else |
1328 | |
1162 | { |
|
|
1163 | now_floor = mn_now; |
1329 | now_floor = mn_now; |
1164 | ev_rt_now = ev_time (); |
1330 | ev_rt_now = ev_time (); |
1165 | return 1; |
|
|
1166 | } |
|
|
1167 | } |
|
|
1168 | |
1331 | |
1169 | inline void |
1332 | /* loop a few times, before making important decisions. |
1170 | time_update (EV_P) |
1333 | * on the choice of "4": one iteration isn't enough, |
1171 | { |
1334 | * in case we get preempted during the calls to |
1172 | int i; |
1335 | * ev_time and get_clock. a second call is almost guaranteed |
1173 | |
1336 | * to succeed in that case, though. and looping a few more times |
1174 | #if EV_USE_MONOTONIC |
1337 | * doesn't hurt either as we only do this on time-jumps or |
1175 | if (expect_true (have_monotonic)) |
1338 | * in the unlikely event of having been preempted here. |
1176 | { |
1339 | */ |
1177 | if (time_update_monotonic (EV_A)) |
1340 | for (i = 4; --i; ) |
1178 | { |
1341 | { |
1179 | ev_tstamp odiff = rtmn_diff; |
|
|
1180 | |
|
|
1181 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
|
|
1182 | { |
|
|
1183 | rtmn_diff = ev_rt_now - mn_now; |
1342 | rtmn_diff = ev_rt_now - mn_now; |
1184 | |
1343 | |
1185 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1344 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1186 | return; /* all is well */ |
1345 | return; /* all is well */ |
1187 | |
1346 | |
1188 | ev_rt_now = ev_time (); |
1347 | ev_rt_now = ev_time (); |
1189 | mn_now = get_clock (); |
1348 | mn_now = get_clock (); |
1190 | now_floor = mn_now; |
1349 | now_floor = mn_now; |
1191 | } |
1350 | } |
1192 | |
1351 | |
1193 | # if EV_PERIODICS |
1352 | # if EV_PERIODIC_ENABLE |
|
|
1353 | periodics_reschedule (EV_A); |
|
|
1354 | # endif |
|
|
1355 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1356 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1357 | } |
|
|
1358 | else |
|
|
1359 | #endif |
|
|
1360 | { |
|
|
1361 | ev_rt_now = ev_time (); |
|
|
1362 | |
|
|
1363 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
|
|
1364 | { |
|
|
1365 | #if EV_PERIODIC_ENABLE |
1194 | periodics_reschedule (EV_A); |
1366 | periodics_reschedule (EV_A); |
1195 | # endif |
1367 | #endif |
1196 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1197 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1198 | } |
|
|
1199 | } |
|
|
1200 | else |
|
|
1201 | #endif |
|
|
1202 | { |
|
|
1203 | ev_rt_now = ev_time (); |
|
|
1204 | |
|
|
1205 | if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
|
|
1206 | { |
|
|
1207 | #if EV_PERIODICS |
|
|
1208 | periodics_reschedule (EV_A); |
|
|
1209 | #endif |
|
|
1210 | |
|
|
1211 | /* adjust timers. this is easy, as the offset is the same for all */ |
1368 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
1212 | for (i = 0; i < timercnt; ++i) |
1369 | for (i = 0; i < timercnt; ++i) |
1213 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
1370 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
1214 | } |
1371 | } |
1215 | |
1372 | |
1216 | mn_now = ev_rt_now; |
1373 | mn_now = ev_rt_now; |
… | |
… | |
1232 | static int loop_done; |
1389 | static int loop_done; |
1233 | |
1390 | |
1234 | void |
1391 | void |
1235 | ev_loop (EV_P_ int flags) |
1392 | ev_loop (EV_P_ int flags) |
1236 | { |
1393 | { |
1237 | double block; |
|
|
1238 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; |
1394 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) |
|
|
1395 | ? EVUNLOOP_ONE |
|
|
1396 | : EVUNLOOP_CANCEL; |
1239 | |
1397 | |
1240 | while (activecnt) |
1398 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
|
|
1399 | |
|
|
1400 | do |
1241 | { |
1401 | { |
|
|
1402 | #ifndef _WIN32 |
|
|
1403 | if (expect_false (curpid)) /* penalise the forking check even more */ |
|
|
1404 | if (expect_false (getpid () != curpid)) |
|
|
1405 | { |
|
|
1406 | curpid = getpid (); |
|
|
1407 | postfork = 1; |
|
|
1408 | } |
|
|
1409 | #endif |
|
|
1410 | |
|
|
1411 | #if EV_FORK_ENABLE |
|
|
1412 | /* we might have forked, so queue fork handlers */ |
|
|
1413 | if (expect_false (postfork)) |
|
|
1414 | if (forkcnt) |
|
|
1415 | { |
|
|
1416 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
|
|
1417 | call_pending (EV_A); |
|
|
1418 | } |
|
|
1419 | #endif |
|
|
1420 | |
1242 | /* queue check watchers (and execute them) */ |
1421 | /* queue prepare watchers (and execute them) */ |
1243 | if (expect_false (preparecnt)) |
1422 | if (expect_false (preparecnt)) |
1244 | { |
1423 | { |
1245 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1424 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1246 | call_pending (EV_A); |
1425 | call_pending (EV_A); |
1247 | } |
1426 | } |
1248 | |
1427 | |
|
|
1428 | if (expect_false (!activecnt)) |
|
|
1429 | break; |
|
|
1430 | |
1249 | /* we might have forked, so reify kernel state if necessary */ |
1431 | /* we might have forked, so reify kernel state if necessary */ |
1250 | if (expect_false (postfork)) |
1432 | if (expect_false (postfork)) |
1251 | loop_fork (EV_A); |
1433 | loop_fork (EV_A); |
1252 | |
1434 | |
1253 | /* update fd-related kernel structures */ |
1435 | /* update fd-related kernel structures */ |
1254 | fd_reify (EV_A); |
1436 | fd_reify (EV_A); |
1255 | |
1437 | |
1256 | /* calculate blocking time */ |
1438 | /* calculate blocking time */ |
|
|
1439 | { |
|
|
1440 | ev_tstamp block; |
1257 | |
1441 | |
1258 | /* we only need this for !monotonic clock or timers, but as we basically |
1442 | if (expect_false (flags & EVLOOP_NONBLOCK || idleall || !activecnt)) |
1259 | always have timers, we just calculate it always */ |
1443 | block = 0.; /* do not block at all */ |
1260 | #if EV_USE_MONOTONIC |
|
|
1261 | if (expect_true (have_monotonic)) |
|
|
1262 | time_update_monotonic (EV_A); |
|
|
1263 | else |
1444 | else |
1264 | #endif |
|
|
1265 | { |
1445 | { |
1266 | ev_rt_now = ev_time (); |
1446 | /* update time to cancel out callback processing overhead */ |
1267 | mn_now = ev_rt_now; |
1447 | time_update (EV_A_ 1e100); |
1268 | } |
|
|
1269 | |
1448 | |
1270 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
|
|
1271 | block = 0.; |
|
|
1272 | else |
|
|
1273 | { |
|
|
1274 | block = MAX_BLOCKTIME; |
1449 | block = MAX_BLOCKTIME; |
1275 | |
1450 | |
1276 | if (timercnt) |
1451 | if (timercnt) |
1277 | { |
1452 | { |
1278 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
1453 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
1279 | if (block > to) block = to; |
1454 | if (block > to) block = to; |
1280 | } |
1455 | } |
1281 | |
1456 | |
1282 | #if EV_PERIODICS |
1457 | #if EV_PERIODIC_ENABLE |
1283 | if (periodiccnt) |
1458 | if (periodiccnt) |
1284 | { |
1459 | { |
1285 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
1460 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
1286 | if (block > to) block = to; |
1461 | if (block > to) block = to; |
1287 | } |
1462 | } |
1288 | #endif |
1463 | #endif |
1289 | |
1464 | |
1290 | if (expect_false (block < 0.)) block = 0.; |
1465 | if (expect_false (block < 0.)) block = 0.; |
1291 | } |
1466 | } |
1292 | |
1467 | |
|
|
1468 | ++loop_count; |
1293 | backend_poll (EV_A_ block); |
1469 | backend_poll (EV_A_ block); |
1294 | |
1470 | |
1295 | /* update ev_rt_now, do magic */ |
1471 | /* update ev_rt_now, do magic */ |
1296 | time_update (EV_A); |
1472 | time_update (EV_A_ block); |
|
|
1473 | } |
1297 | |
1474 | |
1298 | /* queue pending timers and reschedule them */ |
1475 | /* queue pending timers and reschedule them */ |
1299 | timers_reify (EV_A); /* relative timers called last */ |
1476 | timers_reify (EV_A); /* relative timers called last */ |
1300 | #if EV_PERIODICS |
1477 | #if EV_PERIODIC_ENABLE |
1301 | periodics_reify (EV_A); /* absolute timers called first */ |
1478 | periodics_reify (EV_A); /* absolute timers called first */ |
1302 | #endif |
1479 | #endif |
1303 | |
1480 | |
|
|
1481 | #if EV_IDLE_ENABLE |
1304 | /* queue idle watchers unless io or timers are pending */ |
1482 | /* queue idle watchers unless other events are pending */ |
1305 | if (idlecnt && !any_pending (EV_A)) |
1483 | idle_reify (EV_A); |
1306 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
1484 | #endif |
1307 | |
1485 | |
1308 | /* queue check watchers, to be executed first */ |
1486 | /* queue check watchers, to be executed first */ |
1309 | if (expect_false (checkcnt)) |
1487 | if (expect_false (checkcnt)) |
1310 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1488 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1311 | |
1489 | |
1312 | call_pending (EV_A); |
1490 | call_pending (EV_A); |
1313 | |
1491 | |
1314 | if (expect_false (loop_done)) |
|
|
1315 | break; |
|
|
1316 | } |
1492 | } |
|
|
1493 | while (expect_true (activecnt && !loop_done)); |
1317 | |
1494 | |
1318 | if (loop_done != 2) |
1495 | if (loop_done == EVUNLOOP_ONE) |
1319 | loop_done = 0; |
1496 | loop_done = EVUNLOOP_CANCEL; |
1320 | } |
1497 | } |
1321 | |
1498 | |
1322 | void |
1499 | void |
1323 | ev_unloop (EV_P_ int how) |
1500 | ev_unloop (EV_P_ int how) |
1324 | { |
1501 | { |
1325 | loop_done = how; |
1502 | loop_done = how; |
1326 | } |
1503 | } |
1327 | |
1504 | |
1328 | /*****************************************************************************/ |
1505 | /*****************************************************************************/ |
1329 | |
1506 | |
1330 | inline void |
1507 | void inline_size |
1331 | wlist_add (WL *head, WL elem) |
1508 | wlist_add (WL *head, WL elem) |
1332 | { |
1509 | { |
1333 | elem->next = *head; |
1510 | elem->next = *head; |
1334 | *head = elem; |
1511 | *head = elem; |
1335 | } |
1512 | } |
1336 | |
1513 | |
1337 | inline void |
1514 | void inline_size |
1338 | wlist_del (WL *head, WL elem) |
1515 | wlist_del (WL *head, WL elem) |
1339 | { |
1516 | { |
1340 | while (*head) |
1517 | while (*head) |
1341 | { |
1518 | { |
1342 | if (*head == elem) |
1519 | if (*head == elem) |
… | |
… | |
1347 | |
1524 | |
1348 | head = &(*head)->next; |
1525 | head = &(*head)->next; |
1349 | } |
1526 | } |
1350 | } |
1527 | } |
1351 | |
1528 | |
1352 | inline void |
1529 | void inline_speed |
1353 | ev_clear_pending (EV_P_ W w) |
1530 | clear_pending (EV_P_ W w) |
1354 | { |
1531 | { |
1355 | if (w->pending) |
1532 | if (w->pending) |
1356 | { |
1533 | { |
1357 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1534 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1358 | w->pending = 0; |
1535 | w->pending = 0; |
1359 | } |
1536 | } |
1360 | } |
1537 | } |
1361 | |
1538 | |
1362 | inline void |
1539 | int |
|
|
1540 | ev_clear_pending (EV_P_ void *w) |
|
|
1541 | { |
|
|
1542 | W w_ = (W)w; |
|
|
1543 | int pending = w_->pending; |
|
|
1544 | |
|
|
1545 | if (expect_true (pending)) |
|
|
1546 | { |
|
|
1547 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
1548 | w_->pending = 0; |
|
|
1549 | p->w = 0; |
|
|
1550 | return p->events; |
|
|
1551 | } |
|
|
1552 | else |
|
|
1553 | return 0; |
|
|
1554 | } |
|
|
1555 | |
|
|
1556 | void inline_size |
|
|
1557 | pri_adjust (EV_P_ W w) |
|
|
1558 | { |
|
|
1559 | int pri = w->priority; |
|
|
1560 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
|
|
1561 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
|
|
1562 | w->priority = pri; |
|
|
1563 | } |
|
|
1564 | |
|
|
1565 | void inline_speed |
1363 | ev_start (EV_P_ W w, int active) |
1566 | ev_start (EV_P_ W w, int active) |
1364 | { |
1567 | { |
1365 | if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; |
1568 | pri_adjust (EV_A_ w); |
1366 | if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; |
|
|
1367 | |
|
|
1368 | w->active = active; |
1569 | w->active = active; |
1369 | ev_ref (EV_A); |
1570 | ev_ref (EV_A); |
1370 | } |
1571 | } |
1371 | |
1572 | |
1372 | inline void |
1573 | void inline_size |
1373 | ev_stop (EV_P_ W w) |
1574 | ev_stop (EV_P_ W w) |
1374 | { |
1575 | { |
1375 | ev_unref (EV_A); |
1576 | ev_unref (EV_A); |
1376 | w->active = 0; |
1577 | w->active = 0; |
1377 | } |
1578 | } |
1378 | |
1579 | |
1379 | /*****************************************************************************/ |
1580 | /*****************************************************************************/ |
1380 | |
1581 | |
1381 | void |
1582 | void noinline |
1382 | ev_io_start (EV_P_ struct ev_io *w) |
1583 | ev_io_start (EV_P_ ev_io *w) |
1383 | { |
1584 | { |
1384 | int fd = w->fd; |
1585 | int fd = w->fd; |
1385 | |
1586 | |
1386 | if (expect_false (ev_is_active (w))) |
1587 | if (expect_false (ev_is_active (w))) |
1387 | return; |
1588 | return; |
… | |
… | |
1393 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1594 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1394 | |
1595 | |
1395 | fd_change (EV_A_ fd); |
1596 | fd_change (EV_A_ fd); |
1396 | } |
1597 | } |
1397 | |
1598 | |
1398 | void |
1599 | void noinline |
1399 | ev_io_stop (EV_P_ struct ev_io *w) |
1600 | ev_io_stop (EV_P_ ev_io *w) |
1400 | { |
1601 | { |
1401 | ev_clear_pending (EV_A_ (W)w); |
1602 | clear_pending (EV_A_ (W)w); |
1402 | if (expect_false (!ev_is_active (w))) |
1603 | if (expect_false (!ev_is_active (w))) |
1403 | return; |
1604 | return; |
1404 | |
1605 | |
1405 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
1606 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
1406 | |
1607 | |
… | |
… | |
1408 | ev_stop (EV_A_ (W)w); |
1609 | ev_stop (EV_A_ (W)w); |
1409 | |
1610 | |
1410 | fd_change (EV_A_ w->fd); |
1611 | fd_change (EV_A_ w->fd); |
1411 | } |
1612 | } |
1412 | |
1613 | |
1413 | void |
1614 | void noinline |
1414 | ev_timer_start (EV_P_ struct ev_timer *w) |
1615 | ev_timer_start (EV_P_ ev_timer *w) |
1415 | { |
1616 | { |
1416 | if (expect_false (ev_is_active (w))) |
1617 | if (expect_false (ev_is_active (w))) |
1417 | return; |
1618 | return; |
1418 | |
1619 | |
1419 | ((WT)w)->at += mn_now; |
1620 | ((WT)w)->at += mn_now; |
1420 | |
1621 | |
1421 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1622 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1422 | |
1623 | |
1423 | ev_start (EV_A_ (W)w, ++timercnt); |
1624 | ev_start (EV_A_ (W)w, ++timercnt); |
1424 | array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2); |
1625 | array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2); |
1425 | timers [timercnt - 1] = w; |
1626 | timers [timercnt - 1] = w; |
1426 | upheap ((WT *)timers, timercnt - 1); |
1627 | upheap ((WT *)timers, timercnt - 1); |
1427 | |
1628 | |
|
|
1629 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
|
|
1630 | } |
|
|
1631 | |
|
|
1632 | void noinline |
|
|
1633 | ev_timer_stop (EV_P_ ev_timer *w) |
|
|
1634 | { |
|
|
1635 | clear_pending (EV_A_ (W)w); |
|
|
1636 | if (expect_false (!ev_is_active (w))) |
|
|
1637 | return; |
|
|
1638 | |
1428 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1639 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1429 | } |
|
|
1430 | |
1640 | |
1431 | void |
1641 | { |
1432 | ev_timer_stop (EV_P_ struct ev_timer *w) |
1642 | int active = ((W)w)->active; |
1433 | { |
|
|
1434 | ev_clear_pending (EV_A_ (W)w); |
|
|
1435 | if (expect_false (!ev_is_active (w))) |
|
|
1436 | return; |
|
|
1437 | |
1643 | |
1438 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
|
|
1439 | |
|
|
1440 | if (expect_true (((W)w)->active < timercnt--)) |
1644 | if (expect_true (--active < --timercnt)) |
1441 | { |
1645 | { |
1442 | timers [((W)w)->active - 1] = timers [timercnt]; |
1646 | timers [active] = timers [timercnt]; |
1443 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1647 | adjustheap ((WT *)timers, timercnt, active); |
1444 | } |
1648 | } |
|
|
1649 | } |
1445 | |
1650 | |
1446 | ((WT)w)->at -= mn_now; |
1651 | ((WT)w)->at -= mn_now; |
1447 | |
1652 | |
1448 | ev_stop (EV_A_ (W)w); |
1653 | ev_stop (EV_A_ (W)w); |
1449 | } |
1654 | } |
1450 | |
1655 | |
1451 | void |
1656 | void noinline |
1452 | ev_timer_again (EV_P_ struct ev_timer *w) |
1657 | ev_timer_again (EV_P_ ev_timer *w) |
1453 | { |
1658 | { |
1454 | if (ev_is_active (w)) |
1659 | if (ev_is_active (w)) |
1455 | { |
1660 | { |
1456 | if (w->repeat) |
1661 | if (w->repeat) |
1457 | { |
1662 | { |
… | |
… | |
1466 | w->at = w->repeat; |
1671 | w->at = w->repeat; |
1467 | ev_timer_start (EV_A_ w); |
1672 | ev_timer_start (EV_A_ w); |
1468 | } |
1673 | } |
1469 | } |
1674 | } |
1470 | |
1675 | |
1471 | #if EV_PERIODICS |
1676 | #if EV_PERIODIC_ENABLE |
1472 | void |
1677 | void noinline |
1473 | ev_periodic_start (EV_P_ struct ev_periodic *w) |
1678 | ev_periodic_start (EV_P_ ev_periodic *w) |
1474 | { |
1679 | { |
1475 | if (expect_false (ev_is_active (w))) |
1680 | if (expect_false (ev_is_active (w))) |
1476 | return; |
1681 | return; |
1477 | |
1682 | |
1478 | if (w->reschedule_cb) |
1683 | if (w->reschedule_cb) |
1479 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1684 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1480 | else if (w->interval) |
1685 | else if (w->interval) |
1481 | { |
1686 | { |
1482 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1687 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1483 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1688 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1484 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1689 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1485 | } |
1690 | } |
|
|
1691 | else |
|
|
1692 | ((WT)w)->at = w->offset; |
1486 | |
1693 | |
1487 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1694 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1488 | array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); |
1695 | array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); |
1489 | periodics [periodiccnt - 1] = w; |
1696 | periodics [periodiccnt - 1] = w; |
1490 | upheap ((WT *)periodics, periodiccnt - 1); |
1697 | upheap ((WT *)periodics, periodiccnt - 1); |
1491 | |
1698 | |
|
|
1699 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
|
|
1700 | } |
|
|
1701 | |
|
|
1702 | void noinline |
|
|
1703 | ev_periodic_stop (EV_P_ ev_periodic *w) |
|
|
1704 | { |
|
|
1705 | clear_pending (EV_A_ (W)w); |
|
|
1706 | if (expect_false (!ev_is_active (w))) |
|
|
1707 | return; |
|
|
1708 | |
1492 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1709 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1493 | } |
|
|
1494 | |
1710 | |
1495 | void |
1711 | { |
1496 | ev_periodic_stop (EV_P_ struct ev_periodic *w) |
1712 | int active = ((W)w)->active; |
1497 | { |
|
|
1498 | ev_clear_pending (EV_A_ (W)w); |
|
|
1499 | if (expect_false (!ev_is_active (w))) |
|
|
1500 | return; |
|
|
1501 | |
1713 | |
1502 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
|
|
1503 | |
|
|
1504 | if (expect_true (((W)w)->active < periodiccnt--)) |
1714 | if (expect_true (--active < --periodiccnt)) |
1505 | { |
1715 | { |
1506 | periodics [((W)w)->active - 1] = periodics [periodiccnt]; |
1716 | periodics [active] = periodics [periodiccnt]; |
1507 | adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); |
1717 | adjustheap ((WT *)periodics, periodiccnt, active); |
1508 | } |
1718 | } |
|
|
1719 | } |
1509 | |
1720 | |
1510 | ev_stop (EV_A_ (W)w); |
1721 | ev_stop (EV_A_ (W)w); |
1511 | } |
1722 | } |
1512 | |
1723 | |
1513 | void |
1724 | void noinline |
1514 | ev_periodic_again (EV_P_ struct ev_periodic *w) |
1725 | ev_periodic_again (EV_P_ ev_periodic *w) |
1515 | { |
1726 | { |
1516 | /* TODO: use adjustheap and recalculation */ |
1727 | /* TODO: use adjustheap and recalculation */ |
1517 | ev_periodic_stop (EV_A_ w); |
1728 | ev_periodic_stop (EV_A_ w); |
1518 | ev_periodic_start (EV_A_ w); |
1729 | ev_periodic_start (EV_A_ w); |
1519 | } |
1730 | } |
1520 | #endif |
1731 | #endif |
1521 | |
1732 | |
1522 | void |
|
|
1523 | ev_idle_start (EV_P_ struct ev_idle *w) |
|
|
1524 | { |
|
|
1525 | if (expect_false (ev_is_active (w))) |
|
|
1526 | return; |
|
|
1527 | |
|
|
1528 | ev_start (EV_A_ (W)w, ++idlecnt); |
|
|
1529 | array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2); |
|
|
1530 | idles [idlecnt - 1] = w; |
|
|
1531 | } |
|
|
1532 | |
|
|
1533 | void |
|
|
1534 | ev_idle_stop (EV_P_ struct ev_idle *w) |
|
|
1535 | { |
|
|
1536 | ev_clear_pending (EV_A_ (W)w); |
|
|
1537 | if (expect_false (!ev_is_active (w))) |
|
|
1538 | return; |
|
|
1539 | |
|
|
1540 | idles [((W)w)->active - 1] = idles [--idlecnt]; |
|
|
1541 | ev_stop (EV_A_ (W)w); |
|
|
1542 | } |
|
|
1543 | |
|
|
1544 | void |
|
|
1545 | ev_prepare_start (EV_P_ struct ev_prepare *w) |
|
|
1546 | { |
|
|
1547 | if (expect_false (ev_is_active (w))) |
|
|
1548 | return; |
|
|
1549 | |
|
|
1550 | ev_start (EV_A_ (W)w, ++preparecnt); |
|
|
1551 | array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
|
|
1552 | prepares [preparecnt - 1] = w; |
|
|
1553 | } |
|
|
1554 | |
|
|
1555 | void |
|
|
1556 | ev_prepare_stop (EV_P_ struct ev_prepare *w) |
|
|
1557 | { |
|
|
1558 | ev_clear_pending (EV_A_ (W)w); |
|
|
1559 | if (expect_false (!ev_is_active (w))) |
|
|
1560 | return; |
|
|
1561 | |
|
|
1562 | prepares [((W)w)->active - 1] = prepares [--preparecnt]; |
|
|
1563 | ev_stop (EV_A_ (W)w); |
|
|
1564 | } |
|
|
1565 | |
|
|
1566 | void |
|
|
1567 | ev_check_start (EV_P_ struct ev_check *w) |
|
|
1568 | { |
|
|
1569 | if (expect_false (ev_is_active (w))) |
|
|
1570 | return; |
|
|
1571 | |
|
|
1572 | ev_start (EV_A_ (W)w, ++checkcnt); |
|
|
1573 | array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2); |
|
|
1574 | checks [checkcnt - 1] = w; |
|
|
1575 | } |
|
|
1576 | |
|
|
1577 | void |
|
|
1578 | ev_check_stop (EV_P_ struct ev_check *w) |
|
|
1579 | { |
|
|
1580 | ev_clear_pending (EV_A_ (W)w); |
|
|
1581 | if (expect_false (!ev_is_active (w))) |
|
|
1582 | return; |
|
|
1583 | |
|
|
1584 | checks [((W)w)->active - 1] = checks [--checkcnt]; |
|
|
1585 | ev_stop (EV_A_ (W)w); |
|
|
1586 | } |
|
|
1587 | |
|
|
1588 | #ifndef SA_RESTART |
1733 | #ifndef SA_RESTART |
1589 | # define SA_RESTART 0 |
1734 | # define SA_RESTART 0 |
1590 | #endif |
1735 | #endif |
1591 | |
1736 | |
1592 | void |
1737 | void noinline |
1593 | ev_signal_start (EV_P_ struct ev_signal *w) |
1738 | ev_signal_start (EV_P_ ev_signal *w) |
1594 | { |
1739 | { |
1595 | #if EV_MULTIPLICITY |
1740 | #if EV_MULTIPLICITY |
1596 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1741 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1597 | #endif |
1742 | #endif |
1598 | if (expect_false (ev_is_active (w))) |
1743 | if (expect_false (ev_is_active (w))) |
… | |
… | |
1616 | sigaction (w->signum, &sa, 0); |
1761 | sigaction (w->signum, &sa, 0); |
1617 | #endif |
1762 | #endif |
1618 | } |
1763 | } |
1619 | } |
1764 | } |
1620 | |
1765 | |
1621 | void |
1766 | void noinline |
1622 | ev_signal_stop (EV_P_ struct ev_signal *w) |
1767 | ev_signal_stop (EV_P_ ev_signal *w) |
1623 | { |
1768 | { |
1624 | ev_clear_pending (EV_A_ (W)w); |
1769 | clear_pending (EV_A_ (W)w); |
1625 | if (expect_false (!ev_is_active (w))) |
1770 | if (expect_false (!ev_is_active (w))) |
1626 | return; |
1771 | return; |
1627 | |
1772 | |
1628 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
1773 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
1629 | ev_stop (EV_A_ (W)w); |
1774 | ev_stop (EV_A_ (W)w); |
… | |
… | |
1631 | if (!signals [w->signum - 1].head) |
1776 | if (!signals [w->signum - 1].head) |
1632 | signal (w->signum, SIG_DFL); |
1777 | signal (w->signum, SIG_DFL); |
1633 | } |
1778 | } |
1634 | |
1779 | |
1635 | void |
1780 | void |
1636 | ev_child_start (EV_P_ struct ev_child *w) |
1781 | ev_child_start (EV_P_ ev_child *w) |
1637 | { |
1782 | { |
1638 | #if EV_MULTIPLICITY |
1783 | #if EV_MULTIPLICITY |
1639 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1784 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1640 | #endif |
1785 | #endif |
1641 | if (expect_false (ev_is_active (w))) |
1786 | if (expect_false (ev_is_active (w))) |
1642 | return; |
1787 | return; |
1643 | |
1788 | |
1644 | ev_start (EV_A_ (W)w, 1); |
1789 | ev_start (EV_A_ (W)w, 1); |
1645 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1790 | wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1646 | } |
1791 | } |
1647 | |
1792 | |
1648 | void |
1793 | void |
1649 | ev_child_stop (EV_P_ struct ev_child *w) |
1794 | ev_child_stop (EV_P_ ev_child *w) |
1650 | { |
1795 | { |
1651 | ev_clear_pending (EV_A_ (W)w); |
1796 | clear_pending (EV_A_ (W)w); |
1652 | if (expect_false (!ev_is_active (w))) |
1797 | if (expect_false (!ev_is_active (w))) |
1653 | return; |
1798 | return; |
1654 | |
1799 | |
1655 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1800 | wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1656 | ev_stop (EV_A_ (W)w); |
1801 | ev_stop (EV_A_ (W)w); |
1657 | } |
1802 | } |
1658 | |
1803 | |
|
|
1804 | #if EV_STAT_ENABLE |
|
|
1805 | |
|
|
1806 | # ifdef _WIN32 |
|
|
1807 | # undef lstat |
|
|
1808 | # define lstat(a,b) _stati64 (a,b) |
|
|
1809 | # endif |
|
|
1810 | |
|
|
1811 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
1812 | #define MIN_STAT_INTERVAL 0.1074891 |
|
|
1813 | |
|
|
1814 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
|
|
1815 | |
|
|
1816 | #if EV_USE_INOTIFY |
|
|
1817 | # define EV_INOTIFY_BUFSIZE 8192 |
|
|
1818 | |
|
|
1819 | static void noinline |
|
|
1820 | infy_add (EV_P_ ev_stat *w) |
|
|
1821 | { |
|
|
1822 | 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); |
|
|
1823 | |
|
|
1824 | if (w->wd < 0) |
|
|
1825 | { |
|
|
1826 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
|
|
1827 | |
|
|
1828 | /* monitor some parent directory for speedup hints */ |
|
|
1829 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
|
|
1830 | { |
|
|
1831 | char path [4096]; |
|
|
1832 | strcpy (path, w->path); |
|
|
1833 | |
|
|
1834 | do |
|
|
1835 | { |
|
|
1836 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
|
|
1837 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
|
|
1838 | |
|
|
1839 | char *pend = strrchr (path, '/'); |
|
|
1840 | |
|
|
1841 | if (!pend) |
|
|
1842 | break; /* whoops, no '/', complain to your admin */ |
|
|
1843 | |
|
|
1844 | *pend = 0; |
|
|
1845 | w->wd = inotify_add_watch (fs_fd, path, mask); |
|
|
1846 | } |
|
|
1847 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
|
|
1848 | } |
|
|
1849 | } |
|
|
1850 | else |
|
|
1851 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
1852 | |
|
|
1853 | if (w->wd >= 0) |
|
|
1854 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
1855 | } |
|
|
1856 | |
|
|
1857 | static void noinline |
|
|
1858 | infy_del (EV_P_ ev_stat *w) |
|
|
1859 | { |
|
|
1860 | int slot; |
|
|
1861 | int wd = w->wd; |
|
|
1862 | |
|
|
1863 | if (wd < 0) |
|
|
1864 | return; |
|
|
1865 | |
|
|
1866 | w->wd = -2; |
|
|
1867 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
|
|
1868 | wlist_del (&fs_hash [slot].head, (WL)w); |
|
|
1869 | |
|
|
1870 | /* remove this watcher, if others are watching it, they will rearm */ |
|
|
1871 | inotify_rm_watch (fs_fd, wd); |
|
|
1872 | } |
|
|
1873 | |
|
|
1874 | static void noinline |
|
|
1875 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
|
|
1876 | { |
|
|
1877 | if (slot < 0) |
|
|
1878 | /* overflow, need to check for all hahs slots */ |
|
|
1879 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
1880 | infy_wd (EV_A_ slot, wd, ev); |
|
|
1881 | else |
|
|
1882 | { |
|
|
1883 | WL w_; |
|
|
1884 | |
|
|
1885 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
|
|
1886 | { |
|
|
1887 | ev_stat *w = (ev_stat *)w_; |
|
|
1888 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
|
|
1889 | |
|
|
1890 | if (w->wd == wd || wd == -1) |
|
|
1891 | { |
|
|
1892 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
|
|
1893 | { |
|
|
1894 | w->wd = -1; |
|
|
1895 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
1896 | } |
|
|
1897 | |
|
|
1898 | stat_timer_cb (EV_A_ &w->timer, 0); |
|
|
1899 | } |
|
|
1900 | } |
|
|
1901 | } |
|
|
1902 | } |
|
|
1903 | |
|
|
1904 | static void |
|
|
1905 | infy_cb (EV_P_ ev_io *w, int revents) |
|
|
1906 | { |
|
|
1907 | char buf [EV_INOTIFY_BUFSIZE]; |
|
|
1908 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
1909 | int ofs; |
|
|
1910 | int len = read (fs_fd, buf, sizeof (buf)); |
|
|
1911 | |
|
|
1912 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
|
|
1913 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
1914 | } |
|
|
1915 | |
|
|
1916 | void inline_size |
|
|
1917 | infy_init (EV_P) |
|
|
1918 | { |
|
|
1919 | if (fs_fd != -2) |
|
|
1920 | return; |
|
|
1921 | |
|
|
1922 | fs_fd = inotify_init (); |
|
|
1923 | |
|
|
1924 | if (fs_fd >= 0) |
|
|
1925 | { |
|
|
1926 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
|
|
1927 | ev_set_priority (&fs_w, EV_MAXPRI); |
|
|
1928 | ev_io_start (EV_A_ &fs_w); |
|
|
1929 | } |
|
|
1930 | } |
|
|
1931 | |
|
|
1932 | void inline_size |
|
|
1933 | infy_fork (EV_P) |
|
|
1934 | { |
|
|
1935 | int slot; |
|
|
1936 | |
|
|
1937 | if (fs_fd < 0) |
|
|
1938 | return; |
|
|
1939 | |
|
|
1940 | close (fs_fd); |
|
|
1941 | fs_fd = inotify_init (); |
|
|
1942 | |
|
|
1943 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
1944 | { |
|
|
1945 | WL w_ = fs_hash [slot].head; |
|
|
1946 | fs_hash [slot].head = 0; |
|
|
1947 | |
|
|
1948 | while (w_) |
|
|
1949 | { |
|
|
1950 | ev_stat *w = (ev_stat *)w_; |
|
|
1951 | w_ = w_->next; /* lets us add this watcher */ |
|
|
1952 | |
|
|
1953 | w->wd = -1; |
|
|
1954 | |
|
|
1955 | if (fs_fd >= 0) |
|
|
1956 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
1957 | else |
|
|
1958 | ev_timer_start (EV_A_ &w->timer); |
|
|
1959 | } |
|
|
1960 | |
|
|
1961 | } |
|
|
1962 | } |
|
|
1963 | |
|
|
1964 | #endif |
|
|
1965 | |
|
|
1966 | void |
|
|
1967 | ev_stat_stat (EV_P_ ev_stat *w) |
|
|
1968 | { |
|
|
1969 | if (lstat (w->path, &w->attr) < 0) |
|
|
1970 | w->attr.st_nlink = 0; |
|
|
1971 | else if (!w->attr.st_nlink) |
|
|
1972 | w->attr.st_nlink = 1; |
|
|
1973 | } |
|
|
1974 | |
|
|
1975 | static void noinline |
|
|
1976 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
|
|
1977 | { |
|
|
1978 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
|
|
1979 | |
|
|
1980 | /* we copy this here each the time so that */ |
|
|
1981 | /* prev has the old value when the callback gets invoked */ |
|
|
1982 | w->prev = w->attr; |
|
|
1983 | ev_stat_stat (EV_A_ w); |
|
|
1984 | |
|
|
1985 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
|
|
1986 | if ( |
|
|
1987 | w->prev.st_dev != w->attr.st_dev |
|
|
1988 | || w->prev.st_ino != w->attr.st_ino |
|
|
1989 | || w->prev.st_mode != w->attr.st_mode |
|
|
1990 | || w->prev.st_nlink != w->attr.st_nlink |
|
|
1991 | || w->prev.st_uid != w->attr.st_uid |
|
|
1992 | || w->prev.st_gid != w->attr.st_gid |
|
|
1993 | || w->prev.st_rdev != w->attr.st_rdev |
|
|
1994 | || w->prev.st_size != w->attr.st_size |
|
|
1995 | || w->prev.st_atime != w->attr.st_atime |
|
|
1996 | || w->prev.st_mtime != w->attr.st_mtime |
|
|
1997 | || w->prev.st_ctime != w->attr.st_ctime |
|
|
1998 | ) { |
|
|
1999 | #if EV_USE_INOTIFY |
|
|
2000 | infy_del (EV_A_ w); |
|
|
2001 | infy_add (EV_A_ w); |
|
|
2002 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
2003 | #endif |
|
|
2004 | |
|
|
2005 | ev_feed_event (EV_A_ w, EV_STAT); |
|
|
2006 | } |
|
|
2007 | } |
|
|
2008 | |
|
|
2009 | void |
|
|
2010 | ev_stat_start (EV_P_ ev_stat *w) |
|
|
2011 | { |
|
|
2012 | if (expect_false (ev_is_active (w))) |
|
|
2013 | return; |
|
|
2014 | |
|
|
2015 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2016 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2017 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2018 | |
|
|
2019 | ev_stat_stat (EV_A_ w); |
|
|
2020 | |
|
|
2021 | if (w->interval < MIN_STAT_INTERVAL) |
|
|
2022 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2023 | |
|
|
2024 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
|
|
2025 | ev_set_priority (&w->timer, ev_priority (w)); |
|
|
2026 | |
|
|
2027 | #if EV_USE_INOTIFY |
|
|
2028 | infy_init (EV_A); |
|
|
2029 | |
|
|
2030 | if (fs_fd >= 0) |
|
|
2031 | infy_add (EV_A_ w); |
|
|
2032 | else |
|
|
2033 | #endif |
|
|
2034 | ev_timer_start (EV_A_ &w->timer); |
|
|
2035 | |
|
|
2036 | ev_start (EV_A_ (W)w, 1); |
|
|
2037 | } |
|
|
2038 | |
|
|
2039 | void |
|
|
2040 | ev_stat_stop (EV_P_ ev_stat *w) |
|
|
2041 | { |
|
|
2042 | clear_pending (EV_A_ (W)w); |
|
|
2043 | if (expect_false (!ev_is_active (w))) |
|
|
2044 | return; |
|
|
2045 | |
|
|
2046 | #if EV_USE_INOTIFY |
|
|
2047 | infy_del (EV_A_ w); |
|
|
2048 | #endif |
|
|
2049 | ev_timer_stop (EV_A_ &w->timer); |
|
|
2050 | |
|
|
2051 | ev_stop (EV_A_ (W)w); |
|
|
2052 | } |
|
|
2053 | #endif |
|
|
2054 | |
|
|
2055 | #if EV_IDLE_ENABLE |
|
|
2056 | void |
|
|
2057 | ev_idle_start (EV_P_ ev_idle *w) |
|
|
2058 | { |
|
|
2059 | if (expect_false (ev_is_active (w))) |
|
|
2060 | return; |
|
|
2061 | |
|
|
2062 | pri_adjust (EV_A_ (W)w); |
|
|
2063 | |
|
|
2064 | { |
|
|
2065 | int active = ++idlecnt [ABSPRI (w)]; |
|
|
2066 | |
|
|
2067 | ++idleall; |
|
|
2068 | ev_start (EV_A_ (W)w, active); |
|
|
2069 | |
|
|
2070 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
|
|
2071 | idles [ABSPRI (w)][active - 1] = w; |
|
|
2072 | } |
|
|
2073 | } |
|
|
2074 | |
|
|
2075 | void |
|
|
2076 | ev_idle_stop (EV_P_ ev_idle *w) |
|
|
2077 | { |
|
|
2078 | clear_pending (EV_A_ (W)w); |
|
|
2079 | if (expect_false (!ev_is_active (w))) |
|
|
2080 | return; |
|
|
2081 | |
|
|
2082 | { |
|
|
2083 | int active = ((W)w)->active; |
|
|
2084 | |
|
|
2085 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
|
|
2086 | ((W)idles [ABSPRI (w)][active - 1])->active = active; |
|
|
2087 | |
|
|
2088 | ev_stop (EV_A_ (W)w); |
|
|
2089 | --idleall; |
|
|
2090 | } |
|
|
2091 | } |
|
|
2092 | #endif |
|
|
2093 | |
|
|
2094 | void |
|
|
2095 | ev_prepare_start (EV_P_ ev_prepare *w) |
|
|
2096 | { |
|
|
2097 | if (expect_false (ev_is_active (w))) |
|
|
2098 | return; |
|
|
2099 | |
|
|
2100 | ev_start (EV_A_ (W)w, ++preparecnt); |
|
|
2101 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
|
|
2102 | prepares [preparecnt - 1] = w; |
|
|
2103 | } |
|
|
2104 | |
|
|
2105 | void |
|
|
2106 | ev_prepare_stop (EV_P_ ev_prepare *w) |
|
|
2107 | { |
|
|
2108 | clear_pending (EV_A_ (W)w); |
|
|
2109 | if (expect_false (!ev_is_active (w))) |
|
|
2110 | return; |
|
|
2111 | |
|
|
2112 | { |
|
|
2113 | int active = ((W)w)->active; |
|
|
2114 | prepares [active - 1] = prepares [--preparecnt]; |
|
|
2115 | ((W)prepares [active - 1])->active = active; |
|
|
2116 | } |
|
|
2117 | |
|
|
2118 | ev_stop (EV_A_ (W)w); |
|
|
2119 | } |
|
|
2120 | |
|
|
2121 | void |
|
|
2122 | ev_check_start (EV_P_ ev_check *w) |
|
|
2123 | { |
|
|
2124 | if (expect_false (ev_is_active (w))) |
|
|
2125 | return; |
|
|
2126 | |
|
|
2127 | ev_start (EV_A_ (W)w, ++checkcnt); |
|
|
2128 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
|
|
2129 | checks [checkcnt - 1] = w; |
|
|
2130 | } |
|
|
2131 | |
|
|
2132 | void |
|
|
2133 | ev_check_stop (EV_P_ ev_check *w) |
|
|
2134 | { |
|
|
2135 | clear_pending (EV_A_ (W)w); |
|
|
2136 | if (expect_false (!ev_is_active (w))) |
|
|
2137 | return; |
|
|
2138 | |
|
|
2139 | { |
|
|
2140 | int active = ((W)w)->active; |
|
|
2141 | checks [active - 1] = checks [--checkcnt]; |
|
|
2142 | ((W)checks [active - 1])->active = active; |
|
|
2143 | } |
|
|
2144 | |
|
|
2145 | ev_stop (EV_A_ (W)w); |
|
|
2146 | } |
|
|
2147 | |
|
|
2148 | #if EV_EMBED_ENABLE |
|
|
2149 | void noinline |
|
|
2150 | ev_embed_sweep (EV_P_ ev_embed *w) |
|
|
2151 | { |
|
|
2152 | ev_loop (w->loop, EVLOOP_NONBLOCK); |
|
|
2153 | } |
|
|
2154 | |
|
|
2155 | static void |
|
|
2156 | embed_cb (EV_P_ ev_io *io, int revents) |
|
|
2157 | { |
|
|
2158 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
|
|
2159 | |
|
|
2160 | if (ev_cb (w)) |
|
|
2161 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
|
|
2162 | else |
|
|
2163 | ev_embed_sweep (loop, w); |
|
|
2164 | } |
|
|
2165 | |
|
|
2166 | void |
|
|
2167 | ev_embed_start (EV_P_ ev_embed *w) |
|
|
2168 | { |
|
|
2169 | if (expect_false (ev_is_active (w))) |
|
|
2170 | return; |
|
|
2171 | |
|
|
2172 | { |
|
|
2173 | struct ev_loop *loop = w->loop; |
|
|
2174 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
|
|
2175 | ev_io_init (&w->io, embed_cb, backend_fd, EV_READ); |
|
|
2176 | } |
|
|
2177 | |
|
|
2178 | ev_set_priority (&w->io, ev_priority (w)); |
|
|
2179 | ev_io_start (EV_A_ &w->io); |
|
|
2180 | |
|
|
2181 | ev_start (EV_A_ (W)w, 1); |
|
|
2182 | } |
|
|
2183 | |
|
|
2184 | void |
|
|
2185 | ev_embed_stop (EV_P_ ev_embed *w) |
|
|
2186 | { |
|
|
2187 | clear_pending (EV_A_ (W)w); |
|
|
2188 | if (expect_false (!ev_is_active (w))) |
|
|
2189 | return; |
|
|
2190 | |
|
|
2191 | ev_io_stop (EV_A_ &w->io); |
|
|
2192 | |
|
|
2193 | ev_stop (EV_A_ (W)w); |
|
|
2194 | } |
|
|
2195 | #endif |
|
|
2196 | |
|
|
2197 | #if EV_FORK_ENABLE |
|
|
2198 | void |
|
|
2199 | ev_fork_start (EV_P_ ev_fork *w) |
|
|
2200 | { |
|
|
2201 | if (expect_false (ev_is_active (w))) |
|
|
2202 | return; |
|
|
2203 | |
|
|
2204 | ev_start (EV_A_ (W)w, ++forkcnt); |
|
|
2205 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
|
|
2206 | forks [forkcnt - 1] = w; |
|
|
2207 | } |
|
|
2208 | |
|
|
2209 | void |
|
|
2210 | ev_fork_stop (EV_P_ ev_fork *w) |
|
|
2211 | { |
|
|
2212 | clear_pending (EV_A_ (W)w); |
|
|
2213 | if (expect_false (!ev_is_active (w))) |
|
|
2214 | return; |
|
|
2215 | |
|
|
2216 | { |
|
|
2217 | int active = ((W)w)->active; |
|
|
2218 | forks [active - 1] = forks [--forkcnt]; |
|
|
2219 | ((W)forks [active - 1])->active = active; |
|
|
2220 | } |
|
|
2221 | |
|
|
2222 | ev_stop (EV_A_ (W)w); |
|
|
2223 | } |
|
|
2224 | #endif |
|
|
2225 | |
1659 | /*****************************************************************************/ |
2226 | /*****************************************************************************/ |
1660 | |
2227 | |
1661 | struct ev_once |
2228 | struct ev_once |
1662 | { |
2229 | { |
1663 | struct ev_io io; |
2230 | ev_io io; |
1664 | struct ev_timer to; |
2231 | ev_timer to; |
1665 | void (*cb)(int revents, void *arg); |
2232 | void (*cb)(int revents, void *arg); |
1666 | void *arg; |
2233 | void *arg; |
1667 | }; |
2234 | }; |
1668 | |
2235 | |
1669 | static void |
2236 | static void |
… | |
… | |
1678 | |
2245 | |
1679 | cb (revents, arg); |
2246 | cb (revents, arg); |
1680 | } |
2247 | } |
1681 | |
2248 | |
1682 | static void |
2249 | static void |
1683 | once_cb_io (EV_P_ struct ev_io *w, int revents) |
2250 | once_cb_io (EV_P_ ev_io *w, int revents) |
1684 | { |
2251 | { |
1685 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
2252 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
1686 | } |
2253 | } |
1687 | |
2254 | |
1688 | static void |
2255 | static void |
1689 | once_cb_to (EV_P_ struct ev_timer *w, int revents) |
2256 | once_cb_to (EV_P_ ev_timer *w, int revents) |
1690 | { |
2257 | { |
1691 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
2258 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
1692 | } |
2259 | } |
1693 | |
2260 | |
1694 | void |
2261 | void |