1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libev@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * tion, are permitted provided that the following conditions are met: |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * |
9 | * |
… | |
… | |
47 | # include EV_CONFIG_H |
47 | # include EV_CONFIG_H |
48 | # else |
48 | # else |
49 | # include "config.h" |
49 | # include "config.h" |
50 | # endif |
50 | # endif |
51 | |
51 | |
|
|
52 | # if HAVE_CLOCK_SYSCALL |
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|
53 | # ifndef EV_USE_CLOCK_SYSCALL |
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|
54 | # define EV_USE_CLOCK_SYSCALL 1 |
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|
55 | # ifndef EV_USE_REALTIME |
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|
56 | # define EV_USE_REALTIME 0 |
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|
57 | # endif |
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|
58 | # ifndef EV_USE_MONOTONIC |
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|
59 | # define EV_USE_MONOTONIC 1 |
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|
60 | # endif |
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|
61 | # endif |
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|
62 | # endif |
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|
63 | |
52 | # if HAVE_CLOCK_GETTIME |
64 | # if HAVE_CLOCK_GETTIME |
53 | # ifndef EV_USE_MONOTONIC |
65 | # ifndef EV_USE_MONOTONIC |
54 | # define EV_USE_MONOTONIC 1 |
66 | # define EV_USE_MONOTONIC 1 |
55 | # endif |
67 | # endif |
56 | # ifndef EV_USE_REALTIME |
68 | # ifndef EV_USE_REALTIME |
57 | # define EV_USE_REALTIME 1 |
69 | # define EV_USE_REALTIME 0 |
58 | # endif |
70 | # endif |
59 | # else |
71 | # else |
60 | # ifndef EV_USE_MONOTONIC |
72 | # ifndef EV_USE_MONOTONIC |
61 | # define EV_USE_MONOTONIC 0 |
73 | # define EV_USE_MONOTONIC 0 |
62 | # endif |
74 | # endif |
… | |
… | |
164 | # endif |
176 | # endif |
165 | #endif |
177 | #endif |
166 | |
178 | |
167 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
179 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
168 | |
180 | |
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|
181 | #ifndef EV_USE_CLOCK_SYSCALL |
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182 | # if __linux && __GLIBC__ >= 2 |
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183 | # define EV_USE_CLOCK_SYSCALL 1 |
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184 | # else |
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185 | # define EV_USE_CLOCK_SYSCALL 0 |
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186 | # endif |
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|
187 | #endif |
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|
188 | |
169 | #ifndef EV_USE_MONOTONIC |
189 | #ifndef EV_USE_MONOTONIC |
170 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
190 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
171 | # define EV_USE_MONOTONIC 1 |
191 | # define EV_USE_MONOTONIC 1 |
172 | # else |
192 | # else |
173 | # define EV_USE_MONOTONIC 0 |
193 | # define EV_USE_MONOTONIC 0 |
174 | # endif |
194 | # endif |
175 | #endif |
195 | #endif |
176 | |
196 | |
177 | #ifndef EV_USE_REALTIME |
197 | #ifndef EV_USE_REALTIME |
178 | # define EV_USE_REALTIME 0 |
198 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
179 | #endif |
199 | #endif |
180 | |
200 | |
181 | #ifndef EV_USE_NANOSLEEP |
201 | #ifndef EV_USE_NANOSLEEP |
182 | # if _POSIX_C_SOURCE >= 199309L |
202 | # if _POSIX_C_SOURCE >= 199309L |
183 | # define EV_USE_NANOSLEEP 1 |
203 | # define EV_USE_NANOSLEEP 1 |
… | |
… | |
287 | # endif |
307 | # endif |
288 | #endif |
308 | #endif |
289 | |
309 | |
290 | #if EV_USE_INOTIFY |
310 | #if EV_USE_INOTIFY |
291 | # include <sys/utsname.h> |
311 | # include <sys/utsname.h> |
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|
312 | # include <sys/statfs.h> |
292 | # include <sys/inotify.h> |
313 | # include <sys/inotify.h> |
293 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
314 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
294 | # ifndef IN_DONT_FOLLOW |
315 | # ifndef IN_DONT_FOLLOW |
295 | # undef EV_USE_INOTIFY |
316 | # undef EV_USE_INOTIFY |
296 | # define EV_USE_INOTIFY 0 |
317 | # define EV_USE_INOTIFY 0 |
297 | # endif |
318 | # endif |
298 | #endif |
319 | #endif |
299 | |
320 | |
300 | #if EV_SELECT_IS_WINSOCKET |
321 | #if EV_SELECT_IS_WINSOCKET |
301 | # include <winsock.h> |
322 | # include <winsock.h> |
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|
323 | #endif |
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|
324 | |
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|
325 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
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|
326 | /* which makes programs even slower. might work on other unices, too. */ |
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327 | #if EV_USE_CLOCK_SYSCALL |
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|
328 | # include <syscall.h> |
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|
329 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
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330 | # undef EV_USE_MONOTONIC |
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331 | # define EV_USE_MONOTONIC 1 |
302 | #endif |
332 | #endif |
303 | |
333 | |
304 | #if EV_USE_EVENTFD |
334 | #if EV_USE_EVENTFD |
305 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
335 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
306 | # include <stdint.h> |
336 | # include <stdint.h> |
… | |
… | |
367 | typedef ev_watcher_time *WT; |
397 | typedef ev_watcher_time *WT; |
368 | |
398 | |
369 | #define ev_active(w) ((W)(w))->active |
399 | #define ev_active(w) ((W)(w))->active |
370 | #define ev_at(w) ((WT)(w))->at |
400 | #define ev_at(w) ((WT)(w))->at |
371 | |
401 | |
372 | #if EV_USE_MONOTONIC |
402 | #if EV_USE_REALTIME |
373 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
403 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
374 | /* giving it a reasonably high chance of working on typical architetcures */ |
404 | /* giving it a reasonably high chance of working on typical architetcures */ |
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405 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
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406 | #endif |
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407 | |
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408 | #if EV_USE_MONOTONIC |
375 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
409 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
376 | #endif |
410 | #endif |
377 | |
411 | |
378 | #ifdef _WIN32 |
412 | #ifdef _WIN32 |
379 | # include "ev_win32.c" |
413 | # include "ev_win32.c" |
… | |
… | |
388 | { |
422 | { |
389 | syserr_cb = cb; |
423 | syserr_cb = cb; |
390 | } |
424 | } |
391 | |
425 | |
392 | static void noinline |
426 | static void noinline |
393 | syserr (const char *msg) |
427 | ev_syserr (const char *msg) |
394 | { |
428 | { |
395 | if (!msg) |
429 | if (!msg) |
396 | msg = "(libev) system error"; |
430 | msg = "(libev) system error"; |
397 | |
431 | |
398 | if (syserr_cb) |
432 | if (syserr_cb) |
… | |
… | |
449 | typedef struct |
483 | typedef struct |
450 | { |
484 | { |
451 | WL head; |
485 | WL head; |
452 | unsigned char events; |
486 | unsigned char events; |
453 | unsigned char reify; |
487 | unsigned char reify; |
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|
488 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
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489 | unsigned char unused; |
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490 | #if EV_USE_EPOLL |
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491 | unsigned int egen; /* generation counter to counter epoll bugs */ |
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492 | #endif |
454 | #if EV_SELECT_IS_WINSOCKET |
493 | #if EV_SELECT_IS_WINSOCKET |
455 | SOCKET handle; |
494 | SOCKET handle; |
456 | #endif |
495 | #endif |
457 | } ANFD; |
496 | } ANFD; |
458 | |
497 | |
… | |
… | |
518 | |
557 | |
519 | ev_tstamp |
558 | ev_tstamp |
520 | ev_time (void) |
559 | ev_time (void) |
521 | { |
560 | { |
522 | #if EV_USE_REALTIME |
561 | #if EV_USE_REALTIME |
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|
562 | if (expect_true (have_realtime)) |
|
|
563 | { |
523 | struct timespec ts; |
564 | struct timespec ts; |
524 | clock_gettime (CLOCK_REALTIME, &ts); |
565 | clock_gettime (CLOCK_REALTIME, &ts); |
525 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
566 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
526 | #else |
567 | } |
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|
568 | #endif |
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569 | |
527 | struct timeval tv; |
570 | struct timeval tv; |
528 | gettimeofday (&tv, 0); |
571 | gettimeofday (&tv, 0); |
529 | return tv.tv_sec + tv.tv_usec * 1e-6; |
572 | return tv.tv_sec + tv.tv_usec * 1e-6; |
530 | #endif |
|
|
531 | } |
573 | } |
532 | |
574 | |
533 | ev_tstamp inline_size |
575 | inline_size ev_tstamp |
534 | get_clock (void) |
576 | get_clock (void) |
535 | { |
577 | { |
536 | #if EV_USE_MONOTONIC |
578 | #if EV_USE_MONOTONIC |
537 | if (expect_true (have_monotonic)) |
579 | if (expect_true (have_monotonic)) |
538 | { |
580 | { |
… | |
… | |
583 | |
625 | |
584 | /*****************************************************************************/ |
626 | /*****************************************************************************/ |
585 | |
627 | |
586 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
628 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
587 | |
629 | |
588 | int inline_size |
630 | inline_size int |
589 | array_nextsize (int elem, int cur, int cnt) |
631 | array_nextsize (int elem, int cur, int cnt) |
590 | { |
632 | { |
591 | int ncur = cur + 1; |
633 | int ncur = cur + 1; |
592 | |
634 | |
593 | do |
635 | do |
… | |
… | |
610 | array_realloc (int elem, void *base, int *cur, int cnt) |
652 | array_realloc (int elem, void *base, int *cur, int cnt) |
611 | { |
653 | { |
612 | *cur = array_nextsize (elem, *cur, cnt); |
654 | *cur = array_nextsize (elem, *cur, cnt); |
613 | return ev_realloc (base, elem * *cur); |
655 | return ev_realloc (base, elem * *cur); |
614 | } |
656 | } |
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657 | |
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658 | #define array_init_zero(base,count) \ |
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659 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
615 | |
660 | |
616 | #define array_needsize(type,base,cur,cnt,init) \ |
661 | #define array_needsize(type,base,cur,cnt,init) \ |
617 | if (expect_false ((cnt) > (cur))) \ |
662 | if (expect_false ((cnt) > (cur))) \ |
618 | { \ |
663 | { \ |
619 | int ocur_ = (cur); \ |
664 | int ocur_ = (cur); \ |
… | |
… | |
631 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
676 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
632 | } |
677 | } |
633 | #endif |
678 | #endif |
634 | |
679 | |
635 | #define array_free(stem, idx) \ |
680 | #define array_free(stem, idx) \ |
636 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
681 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
637 | |
682 | |
638 | /*****************************************************************************/ |
683 | /*****************************************************************************/ |
639 | |
684 | |
640 | void noinline |
685 | void noinline |
641 | ev_feed_event (EV_P_ void *w, int revents) |
686 | ev_feed_event (EV_P_ void *w, int revents) |
… | |
… | |
652 | pendings [pri][w_->pending - 1].w = w_; |
697 | pendings [pri][w_->pending - 1].w = w_; |
653 | pendings [pri][w_->pending - 1].events = revents; |
698 | pendings [pri][w_->pending - 1].events = revents; |
654 | } |
699 | } |
655 | } |
700 | } |
656 | |
701 | |
657 | void inline_speed |
702 | inline_speed void |
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703 | feed_reverse (EV_P_ W w) |
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704 | { |
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705 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
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706 | rfeeds [rfeedcnt++] = w; |
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707 | } |
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708 | |
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709 | inline_size void |
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710 | feed_reverse_done (EV_P_ int revents) |
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711 | { |
|
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712 | do |
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713 | ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents); |
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714 | while (rfeedcnt); |
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715 | } |
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716 | |
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|
717 | inline_speed void |
658 | queue_events (EV_P_ W *events, int eventcnt, int type) |
718 | queue_events (EV_P_ W *events, int eventcnt, int type) |
659 | { |
719 | { |
660 | int i; |
720 | int i; |
661 | |
721 | |
662 | for (i = 0; i < eventcnt; ++i) |
722 | for (i = 0; i < eventcnt; ++i) |
663 | ev_feed_event (EV_A_ events [i], type); |
723 | ev_feed_event (EV_A_ events [i], type); |
664 | } |
724 | } |
665 | |
725 | |
666 | /*****************************************************************************/ |
726 | /*****************************************************************************/ |
667 | |
727 | |
668 | void inline_size |
728 | inline_speed void |
669 | anfds_init (ANFD *base, int count) |
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|
670 | { |
|
|
671 | while (count--) |
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672 | { |
|
|
673 | base->head = 0; |
|
|
674 | base->events = EV_NONE; |
|
|
675 | base->reify = 0; |
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|
676 | |
|
|
677 | ++base; |
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|
678 | } |
|
|
679 | } |
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680 | |
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681 | void inline_speed |
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|
682 | fd_event (EV_P_ int fd, int revents) |
729 | fd_event (EV_P_ int fd, int revents) |
683 | { |
730 | { |
684 | ANFD *anfd = anfds + fd; |
731 | ANFD *anfd = anfds + fd; |
685 | ev_io *w; |
732 | ev_io *w; |
686 | |
733 | |
… | |
… | |
698 | { |
745 | { |
699 | if (fd >= 0 && fd < anfdmax) |
746 | if (fd >= 0 && fd < anfdmax) |
700 | fd_event (EV_A_ fd, revents); |
747 | fd_event (EV_A_ fd, revents); |
701 | } |
748 | } |
702 | |
749 | |
703 | void inline_size |
750 | inline_size void |
704 | fd_reify (EV_P) |
751 | fd_reify (EV_P) |
705 | { |
752 | { |
706 | int i; |
753 | int i; |
707 | |
754 | |
708 | for (i = 0; i < fdchangecnt; ++i) |
755 | for (i = 0; i < fdchangecnt; ++i) |
… | |
… | |
723 | #ifdef EV_FD_TO_WIN32_HANDLE |
770 | #ifdef EV_FD_TO_WIN32_HANDLE |
724 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
771 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
725 | #else |
772 | #else |
726 | anfd->handle = _get_osfhandle (fd); |
773 | anfd->handle = _get_osfhandle (fd); |
727 | #endif |
774 | #endif |
728 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
775 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
729 | } |
776 | } |
730 | #endif |
777 | #endif |
731 | |
778 | |
732 | { |
779 | { |
733 | unsigned char o_events = anfd->events; |
780 | unsigned char o_events = anfd->events; |
734 | unsigned char o_reify = anfd->reify; |
781 | unsigned char o_reify = anfd->reify; |
735 | |
782 | |
736 | anfd->reify = 0; |
783 | anfd->reify = 0; |
737 | anfd->events = events; |
784 | anfd->events = events; |
738 | |
785 | |
739 | if (o_events != events || o_reify & EV_IOFDSET) |
786 | if (o_events != events || o_reify & EV__IOFDSET) |
740 | backend_modify (EV_A_ fd, o_events, events); |
787 | backend_modify (EV_A_ fd, o_events, events); |
741 | } |
788 | } |
742 | } |
789 | } |
743 | |
790 | |
744 | fdchangecnt = 0; |
791 | fdchangecnt = 0; |
745 | } |
792 | } |
746 | |
793 | |
747 | void inline_size |
794 | inline_size void |
748 | fd_change (EV_P_ int fd, int flags) |
795 | fd_change (EV_P_ int fd, int flags) |
749 | { |
796 | { |
750 | unsigned char reify = anfds [fd].reify; |
797 | unsigned char reify = anfds [fd].reify; |
751 | anfds [fd].reify |= flags; |
798 | anfds [fd].reify |= flags; |
752 | |
799 | |
… | |
… | |
756 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
803 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
757 | fdchanges [fdchangecnt - 1] = fd; |
804 | fdchanges [fdchangecnt - 1] = fd; |
758 | } |
805 | } |
759 | } |
806 | } |
760 | |
807 | |
761 | void inline_speed |
808 | inline_speed void |
762 | fd_kill (EV_P_ int fd) |
809 | fd_kill (EV_P_ int fd) |
763 | { |
810 | { |
764 | ev_io *w; |
811 | ev_io *w; |
765 | |
812 | |
766 | while ((w = (ev_io *)anfds [fd].head)) |
813 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
768 | ev_io_stop (EV_A_ w); |
815 | ev_io_stop (EV_A_ w); |
769 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
816 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
770 | } |
817 | } |
771 | } |
818 | } |
772 | |
819 | |
773 | int inline_size |
820 | inline_size int |
774 | fd_valid (int fd) |
821 | fd_valid (int fd) |
775 | { |
822 | { |
776 | #ifdef _WIN32 |
823 | #ifdef _WIN32 |
777 | return _get_osfhandle (fd) != -1; |
824 | return _get_osfhandle (fd) != -1; |
778 | #else |
825 | #else |
… | |
… | |
814 | |
861 | |
815 | for (fd = 0; fd < anfdmax; ++fd) |
862 | for (fd = 0; fd < anfdmax; ++fd) |
816 | if (anfds [fd].events) |
863 | if (anfds [fd].events) |
817 | { |
864 | { |
818 | anfds [fd].events = 0; |
865 | anfds [fd].events = 0; |
|
|
866 | anfds [fd].emask = 0; |
819 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
867 | fd_change (EV_A_ fd, EV__IOFDSET | 1); |
820 | } |
868 | } |
821 | } |
869 | } |
822 | |
870 | |
823 | /*****************************************************************************/ |
871 | /*****************************************************************************/ |
824 | |
872 | |
… | |
… | |
840 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
888 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
841 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
889 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
842 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
890 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
843 | |
891 | |
844 | /* away from the root */ |
892 | /* away from the root */ |
845 | void inline_speed |
893 | inline_speed void |
846 | downheap (ANHE *heap, int N, int k) |
894 | downheap (ANHE *heap, int N, int k) |
847 | { |
895 | { |
848 | ANHE he = heap [k]; |
896 | ANHE he = heap [k]; |
849 | ANHE *E = heap + N + HEAP0; |
897 | ANHE *E = heap + N + HEAP0; |
850 | |
898 | |
… | |
… | |
890 | #define HEAP0 1 |
938 | #define HEAP0 1 |
891 | #define HPARENT(k) ((k) >> 1) |
939 | #define HPARENT(k) ((k) >> 1) |
892 | #define UPHEAP_DONE(p,k) (!(p)) |
940 | #define UPHEAP_DONE(p,k) (!(p)) |
893 | |
941 | |
894 | /* away from the root */ |
942 | /* away from the root */ |
895 | void inline_speed |
943 | inline_speed void |
896 | downheap (ANHE *heap, int N, int k) |
944 | downheap (ANHE *heap, int N, int k) |
897 | { |
945 | { |
898 | ANHE he = heap [k]; |
946 | ANHE he = heap [k]; |
899 | |
947 | |
900 | for (;;) |
948 | for (;;) |
… | |
… | |
920 | ev_active (ANHE_w (he)) = k; |
968 | ev_active (ANHE_w (he)) = k; |
921 | } |
969 | } |
922 | #endif |
970 | #endif |
923 | |
971 | |
924 | /* towards the root */ |
972 | /* towards the root */ |
925 | void inline_speed |
973 | inline_speed void |
926 | upheap (ANHE *heap, int k) |
974 | upheap (ANHE *heap, int k) |
927 | { |
975 | { |
928 | ANHE he = heap [k]; |
976 | ANHE he = heap [k]; |
929 | |
977 | |
930 | for (;;) |
978 | for (;;) |
… | |
… | |
941 | |
989 | |
942 | heap [k] = he; |
990 | heap [k] = he; |
943 | ev_active (ANHE_w (he)) = k; |
991 | ev_active (ANHE_w (he)) = k; |
944 | } |
992 | } |
945 | |
993 | |
946 | void inline_size |
994 | inline_size void |
947 | adjustheap (ANHE *heap, int N, int k) |
995 | adjustheap (ANHE *heap, int N, int k) |
948 | { |
996 | { |
949 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
997 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
950 | upheap (heap, k); |
998 | upheap (heap, k); |
951 | else |
999 | else |
952 | downheap (heap, N, k); |
1000 | downheap (heap, N, k); |
953 | } |
1001 | } |
954 | |
1002 | |
955 | /* rebuild the heap: this function is used only once and executed rarely */ |
1003 | /* rebuild the heap: this function is used only once and executed rarely */ |
956 | void inline_size |
1004 | inline_size void |
957 | reheap (ANHE *heap, int N) |
1005 | reheap (ANHE *heap, int N) |
958 | { |
1006 | { |
959 | int i; |
1007 | int i; |
960 | |
1008 | |
961 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
1009 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
… | |
… | |
975 | static ANSIG *signals; |
1023 | static ANSIG *signals; |
976 | static int signalmax; |
1024 | static int signalmax; |
977 | |
1025 | |
978 | static EV_ATOMIC_T gotsig; |
1026 | static EV_ATOMIC_T gotsig; |
979 | |
1027 | |
980 | void inline_size |
|
|
981 | signals_init (ANSIG *base, int count) |
|
|
982 | { |
|
|
983 | while (count--) |
|
|
984 | { |
|
|
985 | base->head = 0; |
|
|
986 | base->gotsig = 0; |
|
|
987 | |
|
|
988 | ++base; |
|
|
989 | } |
|
|
990 | } |
|
|
991 | |
|
|
992 | /*****************************************************************************/ |
1028 | /*****************************************************************************/ |
993 | |
1029 | |
994 | void inline_speed |
1030 | inline_speed void |
995 | fd_intern (int fd) |
1031 | fd_intern (int fd) |
996 | { |
1032 | { |
997 | #ifdef _WIN32 |
1033 | #ifdef _WIN32 |
998 | unsigned long arg = 1; |
1034 | unsigned long arg = 1; |
999 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
1035 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
… | |
… | |
1017 | } |
1053 | } |
1018 | else |
1054 | else |
1019 | #endif |
1055 | #endif |
1020 | { |
1056 | { |
1021 | while (pipe (evpipe)) |
1057 | while (pipe (evpipe)) |
1022 | syserr ("(libev) error creating signal/async pipe"); |
1058 | ev_syserr ("(libev) error creating signal/async pipe"); |
1023 | |
1059 | |
1024 | fd_intern (evpipe [0]); |
1060 | fd_intern (evpipe [0]); |
1025 | fd_intern (evpipe [1]); |
1061 | fd_intern (evpipe [1]); |
1026 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
1062 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
1027 | } |
1063 | } |
… | |
… | |
1029 | ev_io_start (EV_A_ &pipeev); |
1065 | ev_io_start (EV_A_ &pipeev); |
1030 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1066 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1031 | } |
1067 | } |
1032 | } |
1068 | } |
1033 | |
1069 | |
1034 | void inline_size |
1070 | inline_size void |
1035 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1071 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1036 | { |
1072 | { |
1037 | if (!*flag) |
1073 | if (!*flag) |
1038 | { |
1074 | { |
1039 | int old_errno = errno; /* save errno because write might clobber it */ |
1075 | int old_errno = errno; /* save errno because write might clobber it */ |
… | |
… | |
1117 | ev_feed_signal_event (EV_P_ int signum) |
1153 | ev_feed_signal_event (EV_P_ int signum) |
1118 | { |
1154 | { |
1119 | WL w; |
1155 | WL w; |
1120 | |
1156 | |
1121 | #if EV_MULTIPLICITY |
1157 | #if EV_MULTIPLICITY |
1122 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1158 | assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1123 | #endif |
1159 | #endif |
1124 | |
1160 | |
1125 | --signum; |
1161 | --signum; |
1126 | |
1162 | |
1127 | if (signum < 0 || signum >= signalmax) |
1163 | if (signum < 0 || signum >= signalmax) |
… | |
… | |
1143 | |
1179 | |
1144 | #ifndef WIFCONTINUED |
1180 | #ifndef WIFCONTINUED |
1145 | # define WIFCONTINUED(status) 0 |
1181 | # define WIFCONTINUED(status) 0 |
1146 | #endif |
1182 | #endif |
1147 | |
1183 | |
1148 | void inline_speed |
1184 | inline_speed void |
1149 | child_reap (EV_P_ int chain, int pid, int status) |
1185 | child_reap (EV_P_ int chain, int pid, int status) |
1150 | { |
1186 | { |
1151 | ev_child *w; |
1187 | ev_child *w; |
1152 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1188 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1153 | |
1189 | |
… | |
… | |
1256 | /* kqueue is borked on everything but netbsd apparently */ |
1292 | /* kqueue is borked on everything but netbsd apparently */ |
1257 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1293 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1258 | flags &= ~EVBACKEND_KQUEUE; |
1294 | flags &= ~EVBACKEND_KQUEUE; |
1259 | #endif |
1295 | #endif |
1260 | #ifdef __APPLE__ |
1296 | #ifdef __APPLE__ |
1261 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
1297 | /* only select works correctly on that "unix-certified" platform */ |
1262 | flags &= ~EVBACKEND_POLL; |
1298 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
|
|
1299 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
1263 | #endif |
1300 | #endif |
1264 | |
1301 | |
1265 | return flags; |
1302 | return flags; |
1266 | } |
1303 | } |
1267 | |
1304 | |
… | |
… | |
1304 | static void noinline |
1341 | static void noinline |
1305 | loop_init (EV_P_ unsigned int flags) |
1342 | loop_init (EV_P_ unsigned int flags) |
1306 | { |
1343 | { |
1307 | if (!backend) |
1344 | if (!backend) |
1308 | { |
1345 | { |
|
|
1346 | #if EV_USE_REALTIME |
|
|
1347 | if (!have_realtime) |
|
|
1348 | { |
|
|
1349 | struct timespec ts; |
|
|
1350 | |
|
|
1351 | if (!clock_gettime (CLOCK_REALTIME, &ts)) |
|
|
1352 | have_realtime = 1; |
|
|
1353 | } |
|
|
1354 | #endif |
|
|
1355 | |
1309 | #if EV_USE_MONOTONIC |
1356 | #if EV_USE_MONOTONIC |
|
|
1357 | if (!have_monotonic) |
1310 | { |
1358 | { |
1311 | struct timespec ts; |
1359 | struct timespec ts; |
|
|
1360 | |
1312 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1361 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1313 | have_monotonic = 1; |
1362 | have_monotonic = 1; |
1314 | } |
1363 | } |
1315 | #endif |
1364 | #endif |
1316 | |
1365 | |
1317 | ev_rt_now = ev_time (); |
1366 | ev_rt_now = ev_time (); |
1318 | mn_now = get_clock (); |
1367 | mn_now = get_clock (); |
1319 | now_floor = mn_now; |
1368 | now_floor = mn_now; |
… | |
… | |
1418 | } |
1467 | } |
1419 | |
1468 | |
1420 | ev_free (anfds); anfdmax = 0; |
1469 | ev_free (anfds); anfdmax = 0; |
1421 | |
1470 | |
1422 | /* have to use the microsoft-never-gets-it-right macro */ |
1471 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
1472 | array_free (rfeed, EMPTY); |
1423 | array_free (fdchange, EMPTY); |
1473 | array_free (fdchange, EMPTY); |
1424 | array_free (timer, EMPTY); |
1474 | array_free (timer, EMPTY); |
1425 | #if EV_PERIODIC_ENABLE |
1475 | #if EV_PERIODIC_ENABLE |
1426 | array_free (periodic, EMPTY); |
1476 | array_free (periodic, EMPTY); |
1427 | #endif |
1477 | #endif |
… | |
… | |
1436 | |
1486 | |
1437 | backend = 0; |
1487 | backend = 0; |
1438 | } |
1488 | } |
1439 | |
1489 | |
1440 | #if EV_USE_INOTIFY |
1490 | #if EV_USE_INOTIFY |
1441 | void inline_size infy_fork (EV_P); |
1491 | inline_size void infy_fork (EV_P); |
1442 | #endif |
1492 | #endif |
1443 | |
1493 | |
1444 | void inline_size |
1494 | inline_size void |
1445 | loop_fork (EV_P) |
1495 | loop_fork (EV_P) |
1446 | { |
1496 | { |
1447 | #if EV_USE_PORT |
1497 | #if EV_USE_PORT |
1448 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1498 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1449 | #endif |
1499 | #endif |
… | |
… | |
1520 | |
1570 | |
1521 | #if EV_VERIFY |
1571 | #if EV_VERIFY |
1522 | static void noinline |
1572 | static void noinline |
1523 | verify_watcher (EV_P_ W w) |
1573 | verify_watcher (EV_P_ W w) |
1524 | { |
1574 | { |
1525 | assert (("watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
1575 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
1526 | |
1576 | |
1527 | if (w->pending) |
1577 | if (w->pending) |
1528 | assert (("pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
1578 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
1529 | } |
1579 | } |
1530 | |
1580 | |
1531 | static void noinline |
1581 | static void noinline |
1532 | verify_heap (EV_P_ ANHE *heap, int N) |
1582 | verify_heap (EV_P_ ANHE *heap, int N) |
1533 | { |
1583 | { |
1534 | int i; |
1584 | int i; |
1535 | |
1585 | |
1536 | for (i = HEAP0; i < N + HEAP0; ++i) |
1586 | for (i = HEAP0; i < N + HEAP0; ++i) |
1537 | { |
1587 | { |
1538 | assert (("active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
1588 | assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
1539 | assert (("heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
1589 | assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
1540 | assert (("heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
1590 | assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
1541 | |
1591 | |
1542 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
1592 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
1543 | } |
1593 | } |
1544 | } |
1594 | } |
1545 | |
1595 | |
1546 | static void noinline |
1596 | static void noinline |
1547 | array_verify (EV_P_ W *ws, int cnt) |
1597 | array_verify (EV_P_ W *ws, int cnt) |
1548 | { |
1598 | { |
1549 | while (cnt--) |
1599 | while (cnt--) |
1550 | { |
1600 | { |
1551 | assert (("active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
1601 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
1552 | verify_watcher (EV_A_ ws [cnt]); |
1602 | verify_watcher (EV_A_ ws [cnt]); |
1553 | } |
1603 | } |
1554 | } |
1604 | } |
1555 | #endif |
1605 | #endif |
1556 | |
1606 | |
… | |
… | |
1563 | |
1613 | |
1564 | assert (activecnt >= -1); |
1614 | assert (activecnt >= -1); |
1565 | |
1615 | |
1566 | assert (fdchangemax >= fdchangecnt); |
1616 | assert (fdchangemax >= fdchangecnt); |
1567 | for (i = 0; i < fdchangecnt; ++i) |
1617 | for (i = 0; i < fdchangecnt; ++i) |
1568 | assert (("negative fd in fdchanges", fdchanges [i] >= 0)); |
1618 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
1569 | |
1619 | |
1570 | assert (anfdmax >= 0); |
1620 | assert (anfdmax >= 0); |
1571 | for (i = 0; i < anfdmax; ++i) |
1621 | for (i = 0; i < anfdmax; ++i) |
1572 | for (w = anfds [i].head; w; w = w->next) |
1622 | for (w = anfds [i].head; w; w = w->next) |
1573 | { |
1623 | { |
1574 | verify_watcher (EV_A_ (W)w); |
1624 | verify_watcher (EV_A_ (W)w); |
1575 | assert (("inactive fd watcher on anfd list", ev_active (w) == 1)); |
1625 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
1576 | assert (("fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
1626 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
1577 | } |
1627 | } |
1578 | |
1628 | |
1579 | assert (timermax >= timercnt); |
1629 | assert (timermax >= timercnt); |
1580 | verify_heap (EV_A_ timers, timercnt); |
1630 | verify_heap (EV_A_ timers, timercnt); |
1581 | |
1631 | |
… | |
… | |
1658 | { |
1708 | { |
1659 | #if EV_MULTIPLICITY |
1709 | #if EV_MULTIPLICITY |
1660 | struct ev_loop *loop = ev_default_loop_ptr; |
1710 | struct ev_loop *loop = ev_default_loop_ptr; |
1661 | #endif |
1711 | #endif |
1662 | |
1712 | |
|
|
1713 | ev_default_loop_ptr = 0; |
|
|
1714 | |
1663 | #ifndef _WIN32 |
1715 | #ifndef _WIN32 |
1664 | ev_ref (EV_A); /* child watcher */ |
1716 | ev_ref (EV_A); /* child watcher */ |
1665 | ev_signal_stop (EV_A_ &childev); |
1717 | ev_signal_stop (EV_A_ &childev); |
1666 | #endif |
1718 | #endif |
1667 | |
1719 | |
… | |
… | |
1673 | { |
1725 | { |
1674 | #if EV_MULTIPLICITY |
1726 | #if EV_MULTIPLICITY |
1675 | struct ev_loop *loop = ev_default_loop_ptr; |
1727 | struct ev_loop *loop = ev_default_loop_ptr; |
1676 | #endif |
1728 | #endif |
1677 | |
1729 | |
1678 | if (backend) |
|
|
1679 | postfork = 1; /* must be in line with ev_loop_fork */ |
1730 | postfork = 1; /* must be in line with ev_loop_fork */ |
1680 | } |
1731 | } |
1681 | |
1732 | |
1682 | /*****************************************************************************/ |
1733 | /*****************************************************************************/ |
1683 | |
1734 | |
1684 | void |
1735 | void |
1685 | ev_invoke (EV_P_ void *w, int revents) |
1736 | ev_invoke (EV_P_ void *w, int revents) |
1686 | { |
1737 | { |
1687 | EV_CB_INVOKE ((W)w, revents); |
1738 | EV_CB_INVOKE ((W)w, revents); |
1688 | } |
1739 | } |
1689 | |
1740 | |
1690 | void inline_speed |
1741 | inline_speed void |
1691 | call_pending (EV_P) |
1742 | call_pending (EV_P) |
1692 | { |
1743 | { |
1693 | int pri; |
1744 | int pri; |
1694 | |
1745 | |
1695 | for (pri = NUMPRI; pri--; ) |
1746 | for (pri = NUMPRI; pri--; ) |
… | |
… | |
1697 | { |
1748 | { |
1698 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1749 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1699 | |
1750 | |
1700 | if (expect_true (p->w)) |
1751 | if (expect_true (p->w)) |
1701 | { |
1752 | { |
1702 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
1753 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
1703 | |
1754 | |
1704 | p->w->pending = 0; |
1755 | p->w->pending = 0; |
1705 | EV_CB_INVOKE (p->w, p->events); |
1756 | EV_CB_INVOKE (p->w, p->events); |
1706 | EV_FREQUENT_CHECK; |
1757 | EV_FREQUENT_CHECK; |
1707 | } |
1758 | } |
1708 | } |
1759 | } |
1709 | } |
1760 | } |
1710 | |
1761 | |
1711 | #if EV_IDLE_ENABLE |
1762 | #if EV_IDLE_ENABLE |
1712 | void inline_size |
1763 | inline_size void |
1713 | idle_reify (EV_P) |
1764 | idle_reify (EV_P) |
1714 | { |
1765 | { |
1715 | if (expect_false (idleall)) |
1766 | if (expect_false (idleall)) |
1716 | { |
1767 | { |
1717 | int pri; |
1768 | int pri; |
… | |
… | |
1729 | } |
1780 | } |
1730 | } |
1781 | } |
1731 | } |
1782 | } |
1732 | #endif |
1783 | #endif |
1733 | |
1784 | |
1734 | void inline_size |
1785 | inline_size void |
1735 | timers_reify (EV_P) |
1786 | timers_reify (EV_P) |
1736 | { |
1787 | { |
1737 | EV_FREQUENT_CHECK; |
1788 | EV_FREQUENT_CHECK; |
1738 | |
1789 | |
1739 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
1790 | if (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
1740 | { |
1791 | { |
1741 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
1792 | do |
1742 | |
|
|
1743 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1744 | |
|
|
1745 | /* first reschedule or stop timer */ |
|
|
1746 | if (w->repeat) |
|
|
1747 | { |
1793 | { |
|
|
1794 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
|
|
1795 | |
|
|
1796 | /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1797 | |
|
|
1798 | /* first reschedule or stop timer */ |
|
|
1799 | if (w->repeat) |
|
|
1800 | { |
1748 | ev_at (w) += w->repeat; |
1801 | ev_at (w) += w->repeat; |
1749 | if (ev_at (w) < mn_now) |
1802 | if (ev_at (w) < mn_now) |
1750 | ev_at (w) = mn_now; |
1803 | ev_at (w) = mn_now; |
1751 | |
1804 | |
1752 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1805 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1753 | |
1806 | |
1754 | ANHE_at_cache (timers [HEAP0]); |
1807 | ANHE_at_cache (timers [HEAP0]); |
1755 | downheap (timers, timercnt, HEAP0); |
1808 | downheap (timers, timercnt, HEAP0); |
|
|
1809 | } |
|
|
1810 | else |
|
|
1811 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1812 | |
|
|
1813 | EV_FREQUENT_CHECK; |
|
|
1814 | feed_reverse (EV_A_ (W)w); |
1756 | } |
1815 | } |
1757 | else |
1816 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
1758 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1759 | |
1817 | |
1760 | EV_FREQUENT_CHECK; |
|
|
1761 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
1818 | feed_reverse_done (EV_A_ EV_TIMEOUT); |
1762 | } |
1819 | } |
1763 | } |
1820 | } |
1764 | |
1821 | |
1765 | #if EV_PERIODIC_ENABLE |
1822 | #if EV_PERIODIC_ENABLE |
1766 | void inline_size |
1823 | inline_size void |
1767 | periodics_reify (EV_P) |
1824 | periodics_reify (EV_P) |
1768 | { |
1825 | { |
1769 | EV_FREQUENT_CHECK; |
1826 | EV_FREQUENT_CHECK; |
1770 | |
1827 | |
1771 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
1828 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
1772 | { |
1829 | { |
1773 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
1830 | int feed_count = 0; |
1774 | |
1831 | |
1775 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
1832 | do |
1776 | |
|
|
1777 | /* first reschedule or stop timer */ |
|
|
1778 | if (w->reschedule_cb) |
|
|
1779 | { |
1833 | { |
|
|
1834 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
|
|
1835 | |
|
|
1836 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
1837 | |
|
|
1838 | /* first reschedule or stop timer */ |
|
|
1839 | if (w->reschedule_cb) |
|
|
1840 | { |
1780 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1841 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1781 | |
1842 | |
1782 | assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
1843 | assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
1783 | |
1844 | |
1784 | ANHE_at_cache (periodics [HEAP0]); |
1845 | ANHE_at_cache (periodics [HEAP0]); |
1785 | downheap (periodics, periodiccnt, HEAP0); |
1846 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1847 | } |
|
|
1848 | else if (w->interval) |
|
|
1849 | { |
|
|
1850 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1851 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
1852 | /* this might happen because of floating point inexactness */ |
|
|
1853 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
1854 | { |
|
|
1855 | ev_at (w) += w->interval; |
|
|
1856 | |
|
|
1857 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
1858 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
1859 | /* has effectively asked to get triggered more often than possible */ |
|
|
1860 | if (ev_at (w) < ev_rt_now) |
|
|
1861 | ev_at (w) = ev_rt_now; |
|
|
1862 | } |
|
|
1863 | |
|
|
1864 | ANHE_at_cache (periodics [HEAP0]); |
|
|
1865 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1866 | } |
|
|
1867 | else |
|
|
1868 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1869 | |
|
|
1870 | EV_FREQUENT_CHECK; |
|
|
1871 | feed_reverse (EV_A_ (W)w); |
1786 | } |
1872 | } |
1787 | else if (w->interval) |
1873 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now); |
1788 | { |
|
|
1789 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1790 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
1791 | /* this might happen because of floating point inexactness */ |
|
|
1792 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
1793 | { |
|
|
1794 | ev_at (w) += w->interval; |
|
|
1795 | |
1874 | |
1796 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
1797 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
1798 | /* has effectively asked to get triggered more often than possible */ |
|
|
1799 | if (ev_at (w) < ev_rt_now) |
|
|
1800 | ev_at (w) = ev_rt_now; |
|
|
1801 | } |
|
|
1802 | |
|
|
1803 | ANHE_at_cache (periodics [HEAP0]); |
|
|
1804 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1805 | } |
|
|
1806 | else |
|
|
1807 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1808 | |
|
|
1809 | EV_FREQUENT_CHECK; |
|
|
1810 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
1875 | feed_reverse_done (EV_A_ EV_PERIODIC); |
1811 | } |
1876 | } |
1812 | } |
1877 | } |
1813 | |
1878 | |
1814 | static void noinline |
1879 | static void noinline |
1815 | periodics_reschedule (EV_P) |
1880 | periodics_reschedule (EV_P) |
… | |
… | |
1831 | |
1896 | |
1832 | reheap (periodics, periodiccnt); |
1897 | reheap (periodics, periodiccnt); |
1833 | } |
1898 | } |
1834 | #endif |
1899 | #endif |
1835 | |
1900 | |
1836 | void inline_speed |
1901 | static void noinline |
|
|
1902 | timers_reschedule (EV_P_ ev_tstamp adjust) |
|
|
1903 | { |
|
|
1904 | int i; |
|
|
1905 | |
|
|
1906 | for (i = 0; i < timercnt; ++i) |
|
|
1907 | { |
|
|
1908 | ANHE *he = timers + i + HEAP0; |
|
|
1909 | ANHE_w (*he)->at += adjust; |
|
|
1910 | ANHE_at_cache (*he); |
|
|
1911 | } |
|
|
1912 | } |
|
|
1913 | |
|
|
1914 | inline_speed void |
1837 | time_update (EV_P_ ev_tstamp max_block) |
1915 | time_update (EV_P_ ev_tstamp max_block) |
1838 | { |
1916 | { |
1839 | int i; |
1917 | int i; |
1840 | |
1918 | |
1841 | #if EV_USE_MONOTONIC |
1919 | #if EV_USE_MONOTONIC |
… | |
… | |
1874 | ev_rt_now = ev_time (); |
1952 | ev_rt_now = ev_time (); |
1875 | mn_now = get_clock (); |
1953 | mn_now = get_clock (); |
1876 | now_floor = mn_now; |
1954 | now_floor = mn_now; |
1877 | } |
1955 | } |
1878 | |
1956 | |
|
|
1957 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1958 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1879 | # if EV_PERIODIC_ENABLE |
1959 | # if EV_PERIODIC_ENABLE |
1880 | periodics_reschedule (EV_A); |
1960 | periodics_reschedule (EV_A); |
1881 | # endif |
1961 | # endif |
1882 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1883 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1884 | } |
1962 | } |
1885 | else |
1963 | else |
1886 | #endif |
1964 | #endif |
1887 | { |
1965 | { |
1888 | ev_rt_now = ev_time (); |
1966 | ev_rt_now = ev_time (); |
1889 | |
1967 | |
1890 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
1968 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
1891 | { |
1969 | { |
|
|
1970 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1971 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
1892 | #if EV_PERIODIC_ENABLE |
1972 | #if EV_PERIODIC_ENABLE |
1893 | periodics_reschedule (EV_A); |
1973 | periodics_reschedule (EV_A); |
1894 | #endif |
1974 | #endif |
1895 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1896 | for (i = 0; i < timercnt; ++i) |
|
|
1897 | { |
|
|
1898 | ANHE *he = timers + i + HEAP0; |
|
|
1899 | ANHE_w (*he)->at += ev_rt_now - mn_now; |
|
|
1900 | ANHE_at_cache (*he); |
|
|
1901 | } |
|
|
1902 | } |
1975 | } |
1903 | |
1976 | |
1904 | mn_now = ev_rt_now; |
1977 | mn_now = ev_rt_now; |
1905 | } |
1978 | } |
1906 | } |
|
|
1907 | |
|
|
1908 | void |
|
|
1909 | ev_ref (EV_P) |
|
|
1910 | { |
|
|
1911 | ++activecnt; |
|
|
1912 | } |
|
|
1913 | |
|
|
1914 | void |
|
|
1915 | ev_unref (EV_P) |
|
|
1916 | { |
|
|
1917 | --activecnt; |
|
|
1918 | } |
|
|
1919 | |
|
|
1920 | void |
|
|
1921 | ev_now_update (EV_P) |
|
|
1922 | { |
|
|
1923 | time_update (EV_A_ 1e100); |
|
|
1924 | } |
1979 | } |
1925 | |
1980 | |
1926 | static int loop_done; |
1981 | static int loop_done; |
1927 | |
1982 | |
1928 | void |
1983 | void |
… | |
… | |
1962 | { |
2017 | { |
1963 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2018 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1964 | call_pending (EV_A); |
2019 | call_pending (EV_A); |
1965 | } |
2020 | } |
1966 | |
2021 | |
1967 | if (expect_false (!activecnt)) |
|
|
1968 | break; |
|
|
1969 | |
|
|
1970 | /* we might have forked, so reify kernel state if necessary */ |
2022 | /* we might have forked, so reify kernel state if necessary */ |
1971 | if (expect_false (postfork)) |
2023 | if (expect_false (postfork)) |
1972 | loop_fork (EV_A); |
2024 | loop_fork (EV_A); |
1973 | |
2025 | |
1974 | /* update fd-related kernel structures */ |
2026 | /* update fd-related kernel structures */ |
… | |
… | |
1981 | |
2033 | |
1982 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2034 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
1983 | { |
2035 | { |
1984 | /* update time to cancel out callback processing overhead */ |
2036 | /* update time to cancel out callback processing overhead */ |
1985 | time_update (EV_A_ 1e100); |
2037 | time_update (EV_A_ 1e100); |
1986 | |
|
|
1987 | waittime = MAX_BLOCKTIME; |
|
|
1988 | |
2038 | |
1989 | if (timercnt) |
2039 | if (timercnt) |
1990 | { |
2040 | { |
1991 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
2041 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
1992 | if (waittime > to) waittime = to; |
2042 | if (waittime > to) waittime = to; |
… | |
… | |
2053 | ev_unloop (EV_P_ int how) |
2103 | ev_unloop (EV_P_ int how) |
2054 | { |
2104 | { |
2055 | loop_done = how; |
2105 | loop_done = how; |
2056 | } |
2106 | } |
2057 | |
2107 | |
|
|
2108 | void |
|
|
2109 | ev_ref (EV_P) |
|
|
2110 | { |
|
|
2111 | ++activecnt; |
|
|
2112 | } |
|
|
2113 | |
|
|
2114 | void |
|
|
2115 | ev_unref (EV_P) |
|
|
2116 | { |
|
|
2117 | --activecnt; |
|
|
2118 | } |
|
|
2119 | |
|
|
2120 | void |
|
|
2121 | ev_now_update (EV_P) |
|
|
2122 | { |
|
|
2123 | time_update (EV_A_ 1e100); |
|
|
2124 | } |
|
|
2125 | |
|
|
2126 | void |
|
|
2127 | ev_suspend (EV_P) |
|
|
2128 | { |
|
|
2129 | ev_now_update (EV_A); |
|
|
2130 | } |
|
|
2131 | |
|
|
2132 | void |
|
|
2133 | ev_resume (EV_P) |
|
|
2134 | { |
|
|
2135 | ev_tstamp mn_prev = mn_now; |
|
|
2136 | |
|
|
2137 | ev_now_update (EV_A); |
|
|
2138 | printf ("update %f\n", mn_now - mn_prev);//D |
|
|
2139 | timers_reschedule (EV_A_ mn_now - mn_prev); |
|
|
2140 | periodics_reschedule (EV_A); |
|
|
2141 | } |
|
|
2142 | |
2058 | /*****************************************************************************/ |
2143 | /*****************************************************************************/ |
2059 | |
2144 | |
2060 | void inline_size |
2145 | inline_size void |
2061 | wlist_add (WL *head, WL elem) |
2146 | wlist_add (WL *head, WL elem) |
2062 | { |
2147 | { |
2063 | elem->next = *head; |
2148 | elem->next = *head; |
2064 | *head = elem; |
2149 | *head = elem; |
2065 | } |
2150 | } |
2066 | |
2151 | |
2067 | void inline_size |
2152 | inline_size void |
2068 | wlist_del (WL *head, WL elem) |
2153 | wlist_del (WL *head, WL elem) |
2069 | { |
2154 | { |
2070 | while (*head) |
2155 | while (*head) |
2071 | { |
2156 | { |
2072 | if (*head == elem) |
2157 | if (*head == elem) |
… | |
… | |
2077 | |
2162 | |
2078 | head = &(*head)->next; |
2163 | head = &(*head)->next; |
2079 | } |
2164 | } |
2080 | } |
2165 | } |
2081 | |
2166 | |
2082 | void inline_speed |
2167 | inline_speed void |
2083 | clear_pending (EV_P_ W w) |
2168 | clear_pending (EV_P_ W w) |
2084 | { |
2169 | { |
2085 | if (w->pending) |
2170 | if (w->pending) |
2086 | { |
2171 | { |
2087 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
2172 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
… | |
… | |
2104 | } |
2189 | } |
2105 | else |
2190 | else |
2106 | return 0; |
2191 | return 0; |
2107 | } |
2192 | } |
2108 | |
2193 | |
2109 | void inline_size |
2194 | inline_size void |
2110 | pri_adjust (EV_P_ W w) |
2195 | pri_adjust (EV_P_ W w) |
2111 | { |
2196 | { |
2112 | int pri = w->priority; |
2197 | int pri = w->priority; |
2113 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2198 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2114 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2199 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2115 | w->priority = pri; |
2200 | w->priority = pri; |
2116 | } |
2201 | } |
2117 | |
2202 | |
2118 | void inline_speed |
2203 | inline_speed void |
2119 | ev_start (EV_P_ W w, int active) |
2204 | ev_start (EV_P_ W w, int active) |
2120 | { |
2205 | { |
2121 | pri_adjust (EV_A_ w); |
2206 | pri_adjust (EV_A_ w); |
2122 | w->active = active; |
2207 | w->active = active; |
2123 | ev_ref (EV_A); |
2208 | ev_ref (EV_A); |
2124 | } |
2209 | } |
2125 | |
2210 | |
2126 | void inline_size |
2211 | inline_size void |
2127 | ev_stop (EV_P_ W w) |
2212 | ev_stop (EV_P_ W w) |
2128 | { |
2213 | { |
2129 | ev_unref (EV_A); |
2214 | ev_unref (EV_A); |
2130 | w->active = 0; |
2215 | w->active = 0; |
2131 | } |
2216 | } |
… | |
… | |
2138 | int fd = w->fd; |
2223 | int fd = w->fd; |
2139 | |
2224 | |
2140 | if (expect_false (ev_is_active (w))) |
2225 | if (expect_false (ev_is_active (w))) |
2141 | return; |
2226 | return; |
2142 | |
2227 | |
2143 | assert (("ev_io_start called with negative fd", fd >= 0)); |
2228 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
|
|
2229 | assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2144 | |
2230 | |
2145 | EV_FREQUENT_CHECK; |
2231 | EV_FREQUENT_CHECK; |
2146 | |
2232 | |
2147 | ev_start (EV_A_ (W)w, 1); |
2233 | ev_start (EV_A_ (W)w, 1); |
2148 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
2234 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2149 | wlist_add (&anfds[fd].head, (WL)w); |
2235 | wlist_add (&anfds[fd].head, (WL)w); |
2150 | |
2236 | |
2151 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
2237 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | 1); |
2152 | w->events &= ~EV_IOFDSET; |
2238 | w->events &= ~EV__IOFDSET; |
2153 | |
2239 | |
2154 | EV_FREQUENT_CHECK; |
2240 | EV_FREQUENT_CHECK; |
2155 | } |
2241 | } |
2156 | |
2242 | |
2157 | void noinline |
2243 | void noinline |
… | |
… | |
2159 | { |
2245 | { |
2160 | clear_pending (EV_A_ (W)w); |
2246 | clear_pending (EV_A_ (W)w); |
2161 | if (expect_false (!ev_is_active (w))) |
2247 | if (expect_false (!ev_is_active (w))) |
2162 | return; |
2248 | return; |
2163 | |
2249 | |
2164 | assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2250 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2165 | |
2251 | |
2166 | EV_FREQUENT_CHECK; |
2252 | EV_FREQUENT_CHECK; |
2167 | |
2253 | |
2168 | wlist_del (&anfds[w->fd].head, (WL)w); |
2254 | wlist_del (&anfds[w->fd].head, (WL)w); |
2169 | ev_stop (EV_A_ (W)w); |
2255 | ev_stop (EV_A_ (W)w); |
… | |
… | |
2179 | if (expect_false (ev_is_active (w))) |
2265 | if (expect_false (ev_is_active (w))) |
2180 | return; |
2266 | return; |
2181 | |
2267 | |
2182 | ev_at (w) += mn_now; |
2268 | ev_at (w) += mn_now; |
2183 | |
2269 | |
2184 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2270 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2185 | |
2271 | |
2186 | EV_FREQUENT_CHECK; |
2272 | EV_FREQUENT_CHECK; |
2187 | |
2273 | |
2188 | ++timercnt; |
2274 | ++timercnt; |
2189 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
2275 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
… | |
… | |
2192 | ANHE_at_cache (timers [ev_active (w)]); |
2278 | ANHE_at_cache (timers [ev_active (w)]); |
2193 | upheap (timers, ev_active (w)); |
2279 | upheap (timers, ev_active (w)); |
2194 | |
2280 | |
2195 | EV_FREQUENT_CHECK; |
2281 | EV_FREQUENT_CHECK; |
2196 | |
2282 | |
2197 | /*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2283 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2198 | } |
2284 | } |
2199 | |
2285 | |
2200 | void noinline |
2286 | void noinline |
2201 | ev_timer_stop (EV_P_ ev_timer *w) |
2287 | ev_timer_stop (EV_P_ ev_timer *w) |
2202 | { |
2288 | { |
… | |
… | |
2207 | EV_FREQUENT_CHECK; |
2293 | EV_FREQUENT_CHECK; |
2208 | |
2294 | |
2209 | { |
2295 | { |
2210 | int active = ev_active (w); |
2296 | int active = ev_active (w); |
2211 | |
2297 | |
2212 | assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
2298 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
2213 | |
2299 | |
2214 | --timercnt; |
2300 | --timercnt; |
2215 | |
2301 | |
2216 | if (expect_true (active < timercnt + HEAP0)) |
2302 | if (expect_true (active < timercnt + HEAP0)) |
2217 | { |
2303 | { |
… | |
… | |
2261 | |
2347 | |
2262 | if (w->reschedule_cb) |
2348 | if (w->reschedule_cb) |
2263 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2349 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2264 | else if (w->interval) |
2350 | else if (w->interval) |
2265 | { |
2351 | { |
2266 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2352 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2267 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2353 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2268 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2354 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2269 | } |
2355 | } |
2270 | else |
2356 | else |
2271 | ev_at (w) = w->offset; |
2357 | ev_at (w) = w->offset; |
… | |
… | |
2279 | ANHE_at_cache (periodics [ev_active (w)]); |
2365 | ANHE_at_cache (periodics [ev_active (w)]); |
2280 | upheap (periodics, ev_active (w)); |
2366 | upheap (periodics, ev_active (w)); |
2281 | |
2367 | |
2282 | EV_FREQUENT_CHECK; |
2368 | EV_FREQUENT_CHECK; |
2283 | |
2369 | |
2284 | /*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2370 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2285 | } |
2371 | } |
2286 | |
2372 | |
2287 | void noinline |
2373 | void noinline |
2288 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2374 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2289 | { |
2375 | { |
… | |
… | |
2294 | EV_FREQUENT_CHECK; |
2380 | EV_FREQUENT_CHECK; |
2295 | |
2381 | |
2296 | { |
2382 | { |
2297 | int active = ev_active (w); |
2383 | int active = ev_active (w); |
2298 | |
2384 | |
2299 | assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
2385 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
2300 | |
2386 | |
2301 | --periodiccnt; |
2387 | --periodiccnt; |
2302 | |
2388 | |
2303 | if (expect_true (active < periodiccnt + HEAP0)) |
2389 | if (expect_true (active < periodiccnt + HEAP0)) |
2304 | { |
2390 | { |
… | |
… | |
2327 | |
2413 | |
2328 | void noinline |
2414 | void noinline |
2329 | ev_signal_start (EV_P_ ev_signal *w) |
2415 | ev_signal_start (EV_P_ ev_signal *w) |
2330 | { |
2416 | { |
2331 | #if EV_MULTIPLICITY |
2417 | #if EV_MULTIPLICITY |
2332 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2418 | assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2333 | #endif |
2419 | #endif |
2334 | if (expect_false (ev_is_active (w))) |
2420 | if (expect_false (ev_is_active (w))) |
2335 | return; |
2421 | return; |
2336 | |
2422 | |
2337 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2423 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); |
2338 | |
2424 | |
2339 | evpipe_init (EV_A); |
2425 | evpipe_init (EV_A); |
2340 | |
2426 | |
2341 | EV_FREQUENT_CHECK; |
2427 | EV_FREQUENT_CHECK; |
2342 | |
2428 | |
… | |
… | |
2345 | sigset_t full, prev; |
2431 | sigset_t full, prev; |
2346 | sigfillset (&full); |
2432 | sigfillset (&full); |
2347 | sigprocmask (SIG_SETMASK, &full, &prev); |
2433 | sigprocmask (SIG_SETMASK, &full, &prev); |
2348 | #endif |
2434 | #endif |
2349 | |
2435 | |
2350 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
2436 | array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); |
2351 | |
2437 | |
2352 | #ifndef _WIN32 |
2438 | #ifndef _WIN32 |
2353 | sigprocmask (SIG_SETMASK, &prev, 0); |
2439 | sigprocmask (SIG_SETMASK, &prev, 0); |
2354 | #endif |
2440 | #endif |
2355 | } |
2441 | } |
… | |
… | |
2393 | |
2479 | |
2394 | void |
2480 | void |
2395 | ev_child_start (EV_P_ ev_child *w) |
2481 | ev_child_start (EV_P_ ev_child *w) |
2396 | { |
2482 | { |
2397 | #if EV_MULTIPLICITY |
2483 | #if EV_MULTIPLICITY |
2398 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2484 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2399 | #endif |
2485 | #endif |
2400 | if (expect_false (ev_is_active (w))) |
2486 | if (expect_false (ev_is_active (w))) |
2401 | return; |
2487 | return; |
2402 | |
2488 | |
2403 | EV_FREQUENT_CHECK; |
2489 | EV_FREQUENT_CHECK; |
… | |
… | |
2428 | # ifdef _WIN32 |
2514 | # ifdef _WIN32 |
2429 | # undef lstat |
2515 | # undef lstat |
2430 | # define lstat(a,b) _stati64 (a,b) |
2516 | # define lstat(a,b) _stati64 (a,b) |
2431 | # endif |
2517 | # endif |
2432 | |
2518 | |
2433 | #define DEF_STAT_INTERVAL 5.0074891 |
2519 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
2520 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
2434 | #define MIN_STAT_INTERVAL 0.1074891 |
2521 | #define MIN_STAT_INTERVAL 0.1074891 |
2435 | |
2522 | |
2436 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2523 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2437 | |
2524 | |
2438 | #if EV_USE_INOTIFY |
2525 | #if EV_USE_INOTIFY |
2439 | # define EV_INOTIFY_BUFSIZE 8192 |
2526 | # define EV_INOTIFY_BUFSIZE 8192 |
… | |
… | |
2443 | { |
2530 | { |
2444 | 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); |
2531 | 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); |
2445 | |
2532 | |
2446 | if (w->wd < 0) |
2533 | if (w->wd < 0) |
2447 | { |
2534 | { |
|
|
2535 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2448 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2536 | ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2449 | |
2537 | |
2450 | /* monitor some parent directory for speedup hints */ |
2538 | /* monitor some parent directory for speedup hints */ |
2451 | /* note that exceeding the hardcoded limit is not a correctness issue, */ |
2539 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2452 | /* but an efficiency issue only */ |
2540 | /* but an efficiency issue only */ |
2453 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2541 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2454 | { |
2542 | { |
2455 | char path [4096]; |
2543 | char path [4096]; |
2456 | strcpy (path, w->path); |
2544 | strcpy (path, w->path); |
… | |
… | |
2460 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2548 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2461 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2549 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2462 | |
2550 | |
2463 | char *pend = strrchr (path, '/'); |
2551 | char *pend = strrchr (path, '/'); |
2464 | |
2552 | |
2465 | if (!pend) |
2553 | if (!pend || pend == path) |
2466 | break; /* whoops, no '/', complain to your admin */ |
2554 | break; |
2467 | |
2555 | |
2468 | *pend = 0; |
2556 | *pend = 0; |
2469 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2557 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2470 | } |
2558 | } |
2471 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2559 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2472 | } |
2560 | } |
2473 | } |
2561 | } |
2474 | else |
|
|
2475 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
2476 | |
2562 | |
2477 | if (w->wd >= 0) |
2563 | if (w->wd >= 0) |
|
|
2564 | { |
2478 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2565 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
2566 | |
|
|
2567 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
2568 | /* unless the filesystem it known to be local, we therefore still poll */ |
|
|
2569 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2570 | struct statfs sfs; |
|
|
2571 | |
|
|
2572 | if (fs_2625 && !statfs (w->path, &sfs)) |
|
|
2573 | if (sfs.f_type == 0x1373 /* devfs */ |
|
|
2574 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2575 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2576 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2577 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2578 | || sfs.f_type == 0x58465342 /* xfs */) |
|
|
2579 | return; |
|
|
2580 | |
|
|
2581 | w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2582 | ev_timer_again (EV_A_ &w->timer); |
|
|
2583 | } |
2479 | } |
2584 | } |
2480 | |
2585 | |
2481 | static void noinline |
2586 | static void noinline |
2482 | infy_del (EV_P_ ev_stat *w) |
2587 | infy_del (EV_P_ ev_stat *w) |
2483 | { |
2588 | { |
… | |
… | |
2513 | |
2618 | |
2514 | if (w->wd == wd || wd == -1) |
2619 | if (w->wd == wd || wd == -1) |
2515 | { |
2620 | { |
2516 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2621 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2517 | { |
2622 | { |
|
|
2623 | wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2518 | w->wd = -1; |
2624 | w->wd = -1; |
2519 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2625 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2520 | } |
2626 | } |
2521 | |
2627 | |
2522 | stat_timer_cb (EV_A_ &w->timer, 0); |
2628 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2535 | |
2641 | |
2536 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
2642 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
2537 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
2643 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
2538 | } |
2644 | } |
2539 | |
2645 | |
2540 | void inline_size |
2646 | inline_size void |
2541 | infy_init (EV_P) |
2647 | check_2625 (EV_P) |
2542 | { |
2648 | { |
2543 | if (fs_fd != -2) |
|
|
2544 | return; |
|
|
2545 | |
|
|
2546 | /* kernels < 2.6.25 are borked |
2649 | /* kernels < 2.6.25 are borked |
2547 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
2650 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
2548 | */ |
2651 | */ |
2549 | { |
|
|
2550 | struct utsname buf; |
2652 | struct utsname buf; |
2551 | int major, minor, micro; |
2653 | int major, minor, micro; |
2552 | |
2654 | |
2553 | fs_fd = -1; |
|
|
2554 | |
|
|
2555 | if (uname (&buf)) |
2655 | if (uname (&buf)) |
2556 | return; |
2656 | return; |
2557 | |
2657 | |
2558 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
2658 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
2559 | return; |
2659 | return; |
2560 | |
2660 | |
2561 | if (major < 2 |
2661 | if (major < 2 |
2562 | || (major == 2 && minor < 6) |
2662 | || (major == 2 && minor < 6) |
2563 | || (major == 2 && minor == 6 && micro < 25)) |
2663 | || (major == 2 && minor == 6 && micro < 25)) |
2564 | return; |
2664 | return; |
2565 | } |
2665 | |
|
|
2666 | fs_2625 = 1; |
|
|
2667 | } |
|
|
2668 | |
|
|
2669 | inline_size void |
|
|
2670 | infy_init (EV_P) |
|
|
2671 | { |
|
|
2672 | if (fs_fd != -2) |
|
|
2673 | return; |
|
|
2674 | |
|
|
2675 | fs_fd = -1; |
|
|
2676 | |
|
|
2677 | check_2625 (EV_A); |
2566 | |
2678 | |
2567 | fs_fd = inotify_init (); |
2679 | fs_fd = inotify_init (); |
2568 | |
2680 | |
2569 | if (fs_fd >= 0) |
2681 | if (fs_fd >= 0) |
2570 | { |
2682 | { |
… | |
… | |
2572 | ev_set_priority (&fs_w, EV_MAXPRI); |
2684 | ev_set_priority (&fs_w, EV_MAXPRI); |
2573 | ev_io_start (EV_A_ &fs_w); |
2685 | ev_io_start (EV_A_ &fs_w); |
2574 | } |
2686 | } |
2575 | } |
2687 | } |
2576 | |
2688 | |
2577 | void inline_size |
2689 | inline_size void |
2578 | infy_fork (EV_P) |
2690 | infy_fork (EV_P) |
2579 | { |
2691 | { |
2580 | int slot; |
2692 | int slot; |
2581 | |
2693 | |
2582 | if (fs_fd < 0) |
2694 | if (fs_fd < 0) |
… | |
… | |
2598 | w->wd = -1; |
2710 | w->wd = -1; |
2599 | |
2711 | |
2600 | if (fs_fd >= 0) |
2712 | if (fs_fd >= 0) |
2601 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2713 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2602 | else |
2714 | else |
2603 | ev_timer_start (EV_A_ &w->timer); |
2715 | ev_timer_again (EV_A_ &w->timer); |
2604 | } |
2716 | } |
2605 | } |
2717 | } |
2606 | } |
2718 | } |
2607 | |
2719 | |
2608 | #endif |
2720 | #endif |
… | |
… | |
2663 | ev_stat_start (EV_P_ ev_stat *w) |
2775 | ev_stat_start (EV_P_ ev_stat *w) |
2664 | { |
2776 | { |
2665 | if (expect_false (ev_is_active (w))) |
2777 | if (expect_false (ev_is_active (w))) |
2666 | return; |
2778 | return; |
2667 | |
2779 | |
2668 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2669 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2670 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2671 | |
|
|
2672 | ev_stat_stat (EV_A_ w); |
2780 | ev_stat_stat (EV_A_ w); |
2673 | |
2781 | |
|
|
2782 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
2674 | if (w->interval < MIN_STAT_INTERVAL) |
2783 | w->interval = MIN_STAT_INTERVAL; |
2675 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2676 | |
2784 | |
2677 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
2785 | ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL); |
2678 | ev_set_priority (&w->timer, ev_priority (w)); |
2786 | ev_set_priority (&w->timer, ev_priority (w)); |
2679 | |
2787 | |
2680 | #if EV_USE_INOTIFY |
2788 | #if EV_USE_INOTIFY |
2681 | infy_init (EV_A); |
2789 | infy_init (EV_A); |
2682 | |
2790 | |
2683 | if (fs_fd >= 0) |
2791 | if (fs_fd >= 0) |
2684 | infy_add (EV_A_ w); |
2792 | infy_add (EV_A_ w); |
2685 | else |
2793 | else |
2686 | #endif |
2794 | #endif |
2687 | ev_timer_start (EV_A_ &w->timer); |
2795 | ev_timer_again (EV_A_ &w->timer); |
2688 | |
2796 | |
2689 | ev_start (EV_A_ (W)w, 1); |
2797 | ev_start (EV_A_ (W)w, 1); |
2690 | |
2798 | |
2691 | EV_FREQUENT_CHECK; |
2799 | EV_FREQUENT_CHECK; |
2692 | } |
2800 | } |
… | |
… | |
2867 | static void |
2975 | static void |
2868 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
2976 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
2869 | { |
2977 | { |
2870 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
2978 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
2871 | |
2979 | |
|
|
2980 | ev_embed_stop (EV_A_ w); |
|
|
2981 | |
2872 | { |
2982 | { |
2873 | struct ev_loop *loop = w->other; |
2983 | struct ev_loop *loop = w->other; |
2874 | |
2984 | |
2875 | ev_loop_fork (EV_A); |
2985 | ev_loop_fork (EV_A); |
|
|
2986 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
2876 | } |
2987 | } |
|
|
2988 | |
|
|
2989 | ev_embed_start (EV_A_ w); |
2877 | } |
2990 | } |
2878 | |
2991 | |
2879 | #if 0 |
2992 | #if 0 |
2880 | static void |
2993 | static void |
2881 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
2994 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
… | |
… | |
2890 | if (expect_false (ev_is_active (w))) |
3003 | if (expect_false (ev_is_active (w))) |
2891 | return; |
3004 | return; |
2892 | |
3005 | |
2893 | { |
3006 | { |
2894 | struct ev_loop *loop = w->other; |
3007 | struct ev_loop *loop = w->other; |
2895 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3008 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2896 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3009 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2897 | } |
3010 | } |
2898 | |
3011 | |
2899 | EV_FREQUENT_CHECK; |
3012 | EV_FREQUENT_CHECK; |
2900 | |
3013 | |
… | |
… | |
3083 | ev_timer_set (&once->to, timeout, 0.); |
3196 | ev_timer_set (&once->to, timeout, 0.); |
3084 | ev_timer_start (EV_A_ &once->to); |
3197 | ev_timer_start (EV_A_ &once->to); |
3085 | } |
3198 | } |
3086 | } |
3199 | } |
3087 | |
3200 | |
|
|
3201 | /*****************************************************************************/ |
|
|
3202 | |
|
|
3203 | #if 0 |
|
|
3204 | void |
|
|
3205 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
|
|
3206 | { |
|
|
3207 | int i, j; |
|
|
3208 | ev_watcher_list *wl, *wn; |
|
|
3209 | |
|
|
3210 | if (types & (EV_IO | EV_EMBED)) |
|
|
3211 | for (i = 0; i < anfdmax; ++i) |
|
|
3212 | for (wl = anfds [i].head; wl; ) |
|
|
3213 | { |
|
|
3214 | wn = wl->next; |
|
|
3215 | |
|
|
3216 | #if EV_EMBED_ENABLE |
|
|
3217 | if (ev_cb ((ev_io *)wl) == embed_io_cb) |
|
|
3218 | { |
|
|
3219 | if (types & EV_EMBED) |
|
|
3220 | cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io)); |
|
|
3221 | } |
|
|
3222 | else |
|
|
3223 | #endif |
|
|
3224 | #if EV_USE_INOTIFY |
|
|
3225 | if (ev_cb ((ev_io *)wl) == infy_cb) |
|
|
3226 | ; |
|
|
3227 | else |
|
|
3228 | #endif |
|
|
3229 | if ((ev_io *)wl != &pipeev) |
|
|
3230 | if (types & EV_IO) |
|
|
3231 | cb (EV_A_ EV_IO, wl); |
|
|
3232 | |
|
|
3233 | wl = wn; |
|
|
3234 | } |
|
|
3235 | |
|
|
3236 | if (types & (EV_TIMER | EV_STAT)) |
|
|
3237 | for (i = timercnt + HEAP0; i-- > HEAP0; ) |
|
|
3238 | #if EV_STAT_ENABLE |
|
|
3239 | /*TODO: timer is not always active*/ |
|
|
3240 | if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb) |
|
|
3241 | { |
|
|
3242 | if (types & EV_STAT) |
|
|
3243 | cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer)); |
|
|
3244 | } |
|
|
3245 | else |
|
|
3246 | #endif |
|
|
3247 | if (types & EV_TIMER) |
|
|
3248 | cb (EV_A_ EV_TIMER, ANHE_w (timers [i])); |
|
|
3249 | |
|
|
3250 | #if EV_PERIODIC_ENABLE |
|
|
3251 | if (types & EV_PERIODIC) |
|
|
3252 | for (i = periodiccnt + HEAP0; i-- > HEAP0; ) |
|
|
3253 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
|
|
3254 | #endif |
|
|
3255 | |
|
|
3256 | #if EV_IDLE_ENABLE |
|
|
3257 | if (types & EV_IDLE) |
|
|
3258 | for (j = NUMPRI; i--; ) |
|
|
3259 | for (i = idlecnt [j]; i--; ) |
|
|
3260 | cb (EV_A_ EV_IDLE, idles [j][i]); |
|
|
3261 | #endif |
|
|
3262 | |
|
|
3263 | #if EV_FORK_ENABLE |
|
|
3264 | if (types & EV_FORK) |
|
|
3265 | for (i = forkcnt; i--; ) |
|
|
3266 | if (ev_cb (forks [i]) != embed_fork_cb) |
|
|
3267 | cb (EV_A_ EV_FORK, forks [i]); |
|
|
3268 | #endif |
|
|
3269 | |
|
|
3270 | #if EV_ASYNC_ENABLE |
|
|
3271 | if (types & EV_ASYNC) |
|
|
3272 | for (i = asynccnt; i--; ) |
|
|
3273 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
|
|
3274 | #endif |
|
|
3275 | |
|
|
3276 | if (types & EV_PREPARE) |
|
|
3277 | for (i = preparecnt; i--; ) |
|
|
3278 | #if EV_EMBED_ENABLE |
|
|
3279 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
|
|
3280 | #endif |
|
|
3281 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
3282 | |
|
|
3283 | if (types & EV_CHECK) |
|
|
3284 | for (i = checkcnt; i--; ) |
|
|
3285 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
3286 | |
|
|
3287 | if (types & EV_SIGNAL) |
|
|
3288 | for (i = 0; i < signalmax; ++i) |
|
|
3289 | for (wl = signals [i].head; wl; ) |
|
|
3290 | { |
|
|
3291 | wn = wl->next; |
|
|
3292 | cb (EV_A_ EV_SIGNAL, wl); |
|
|
3293 | wl = wn; |
|
|
3294 | } |
|
|
3295 | |
|
|
3296 | if (types & EV_CHILD) |
|
|
3297 | for (i = EV_PID_HASHSIZE; i--; ) |
|
|
3298 | for (wl = childs [i]; wl; ) |
|
|
3299 | { |
|
|
3300 | wn = wl->next; |
|
|
3301 | cb (EV_A_ EV_CHILD, wl); |
|
|
3302 | wl = wn; |
|
|
3303 | } |
|
|
3304 | /* EV_STAT 0x00001000 /* stat data changed */ |
|
|
3305 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
|
|
3306 | } |
|
|
3307 | #endif |
|
|
3308 | |
3088 | #if EV_MULTIPLICITY |
3309 | #if EV_MULTIPLICITY |
3089 | #include "ev_wrap.h" |
3310 | #include "ev_wrap.h" |
3090 | #endif |
3311 | #endif |
3091 | |
3312 | |
3092 | #ifdef __cplusplus |
3313 | #ifdef __cplusplus |