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 |
|
|
53 | # ifndef EV_USE_CLOCK_SYSCALL |
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|
54 | # define EV_USE_CLOCK_SYSCALL 1 |
|
|
55 | # ifndef EV_USE_REALTIME |
|
|
56 | # define EV_USE_REALTIME 0 |
|
|
57 | # endif |
|
|
58 | # ifndef EV_USE_MONOTONIC |
|
|
59 | # define EV_USE_MONOTONIC 1 |
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|
60 | # endif |
|
|
61 | # endif |
|
|
62 | # elif !defined(EV_USE_CLOCK_SYSCALL) |
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63 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
64 | # endif |
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|
65 | |
52 | # if HAVE_CLOCK_GETTIME |
66 | # if HAVE_CLOCK_GETTIME |
53 | # ifndef EV_USE_MONOTONIC |
67 | # ifndef EV_USE_MONOTONIC |
54 | # define EV_USE_MONOTONIC 1 |
68 | # define EV_USE_MONOTONIC 1 |
55 | # endif |
69 | # endif |
56 | # ifndef EV_USE_REALTIME |
70 | # ifndef EV_USE_REALTIME |
57 | # define EV_USE_REALTIME 1 |
71 | # define EV_USE_REALTIME 0 |
58 | # endif |
72 | # endif |
59 | # else |
73 | # else |
60 | # ifndef EV_USE_MONOTONIC |
74 | # ifndef EV_USE_MONOTONIC |
61 | # define EV_USE_MONOTONIC 0 |
75 | # define EV_USE_MONOTONIC 0 |
62 | # endif |
76 | # endif |
… | |
… | |
154 | #ifndef _WIN32 |
168 | #ifndef _WIN32 |
155 | # include <sys/time.h> |
169 | # include <sys/time.h> |
156 | # include <sys/wait.h> |
170 | # include <sys/wait.h> |
157 | # include <unistd.h> |
171 | # include <unistd.h> |
158 | #else |
172 | #else |
|
|
173 | # include <io.h> |
159 | # define WIN32_LEAN_AND_MEAN |
174 | # define WIN32_LEAN_AND_MEAN |
160 | # include <windows.h> |
175 | # include <windows.h> |
161 | # ifndef EV_SELECT_IS_WINSOCKET |
176 | # ifndef EV_SELECT_IS_WINSOCKET |
162 | # define EV_SELECT_IS_WINSOCKET 1 |
177 | # define EV_SELECT_IS_WINSOCKET 1 |
163 | # endif |
178 | # endif |
164 | #endif |
179 | #endif |
165 | |
180 | |
166 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
181 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
|
|
182 | |
|
|
183 | #ifndef EV_USE_CLOCK_SYSCALL |
|
|
184 | # if __linux && __GLIBC__ >= 2 |
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|
185 | # define EV_USE_CLOCK_SYSCALL 1 |
|
|
186 | # else |
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|
187 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
188 | # endif |
|
|
189 | #endif |
167 | |
190 | |
168 | #ifndef EV_USE_MONOTONIC |
191 | #ifndef EV_USE_MONOTONIC |
169 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
192 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
170 | # define EV_USE_MONOTONIC 1 |
193 | # define EV_USE_MONOTONIC 1 |
171 | # else |
194 | # else |
172 | # define EV_USE_MONOTONIC 0 |
195 | # define EV_USE_MONOTONIC 0 |
173 | # endif |
196 | # endif |
174 | #endif |
197 | #endif |
175 | |
198 | |
176 | #ifndef EV_USE_REALTIME |
199 | #ifndef EV_USE_REALTIME |
177 | # define EV_USE_REALTIME 0 |
200 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
178 | #endif |
201 | #endif |
179 | |
202 | |
180 | #ifndef EV_USE_NANOSLEEP |
203 | #ifndef EV_USE_NANOSLEEP |
181 | # if _POSIX_C_SOURCE >= 199309L |
204 | # if _POSIX_C_SOURCE >= 199309L |
182 | # define EV_USE_NANOSLEEP 1 |
205 | # define EV_USE_NANOSLEEP 1 |
… | |
… | |
285 | # include <sys/select.h> |
308 | # include <sys/select.h> |
286 | # endif |
309 | # endif |
287 | #endif |
310 | #endif |
288 | |
311 | |
289 | #if EV_USE_INOTIFY |
312 | #if EV_USE_INOTIFY |
|
|
313 | # include <sys/utsname.h> |
|
|
314 | # include <sys/statfs.h> |
290 | # include <sys/inotify.h> |
315 | # include <sys/inotify.h> |
|
|
316 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
|
|
317 | # ifndef IN_DONT_FOLLOW |
|
|
318 | # undef EV_USE_INOTIFY |
|
|
319 | # define EV_USE_INOTIFY 0 |
|
|
320 | # endif |
291 | #endif |
321 | #endif |
292 | |
322 | |
293 | #if EV_SELECT_IS_WINSOCKET |
323 | #if EV_SELECT_IS_WINSOCKET |
294 | # include <winsock.h> |
324 | # include <winsock.h> |
|
|
325 | #endif |
|
|
326 | |
|
|
327 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
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|
328 | /* which makes programs even slower. might work on other unices, too. */ |
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|
329 | #if EV_USE_CLOCK_SYSCALL |
|
|
330 | # include <syscall.h> |
|
|
331 | # ifdef SYS_clock_gettime |
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332 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
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333 | # undef EV_USE_MONOTONIC |
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334 | # define EV_USE_MONOTONIC 1 |
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335 | # else |
|
|
336 | # undef EV_USE_CLOCK_SYSCALL |
|
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337 | # define EV_USE_CLOCK_SYSCALL 0 |
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|
338 | # endif |
295 | #endif |
339 | #endif |
296 | |
340 | |
297 | #if EV_USE_EVENTFD |
341 | #if EV_USE_EVENTFD |
298 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
342 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
299 | # include <stdint.h> |
343 | # include <stdint.h> |
… | |
… | |
360 | typedef ev_watcher_time *WT; |
404 | typedef ev_watcher_time *WT; |
361 | |
405 | |
362 | #define ev_active(w) ((W)(w))->active |
406 | #define ev_active(w) ((W)(w))->active |
363 | #define ev_at(w) ((WT)(w))->at |
407 | #define ev_at(w) ((WT)(w))->at |
364 | |
408 | |
365 | #if EV_USE_MONOTONIC |
409 | #if EV_USE_REALTIME |
366 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
410 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
367 | /* giving it a reasonably high chance of working on typical architetcures */ |
411 | /* giving it a reasonably high chance of working on typical architetcures */ |
|
|
412 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
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413 | #endif |
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414 | |
|
|
415 | #if EV_USE_MONOTONIC |
368 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
416 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
369 | #endif |
417 | #endif |
370 | |
418 | |
371 | #ifdef _WIN32 |
419 | #ifdef _WIN32 |
372 | # include "ev_win32.c" |
420 | # include "ev_win32.c" |
… | |
… | |
381 | { |
429 | { |
382 | syserr_cb = cb; |
430 | syserr_cb = cb; |
383 | } |
431 | } |
384 | |
432 | |
385 | static void noinline |
433 | static void noinline |
386 | syserr (const char *msg) |
434 | ev_syserr (const char *msg) |
387 | { |
435 | { |
388 | if (!msg) |
436 | if (!msg) |
389 | msg = "(libev) system error"; |
437 | msg = "(libev) system error"; |
390 | |
438 | |
391 | if (syserr_cb) |
439 | if (syserr_cb) |
… | |
… | |
437 | #define ev_malloc(size) ev_realloc (0, (size)) |
485 | #define ev_malloc(size) ev_realloc (0, (size)) |
438 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
486 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
439 | |
487 | |
440 | /*****************************************************************************/ |
488 | /*****************************************************************************/ |
441 | |
489 | |
|
|
490 | /* file descriptor info structure */ |
442 | typedef struct |
491 | typedef struct |
443 | { |
492 | { |
444 | WL head; |
493 | WL head; |
445 | unsigned char events; |
494 | unsigned char events; /* the events watched for */ |
|
|
495 | unsigned char reify; /* flag set when this ANFD needs reification */ |
|
|
496 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
446 | unsigned char reify; |
497 | unsigned char unused; |
|
|
498 | #if EV_USE_EPOLL |
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|
499 | unsigned int egen; /* generation counter to counter epoll bugs */ |
|
|
500 | #endif |
447 | #if EV_SELECT_IS_WINSOCKET |
501 | #if EV_SELECT_IS_WINSOCKET |
448 | SOCKET handle; |
502 | SOCKET handle; |
449 | #endif |
503 | #endif |
450 | } ANFD; |
504 | } ANFD; |
451 | |
505 | |
|
|
506 | /* stores the pending event set for a given watcher */ |
452 | typedef struct |
507 | typedef struct |
453 | { |
508 | { |
454 | W w; |
509 | W w; |
455 | int events; |
510 | int events; /* the pending event set for the given watcher */ |
456 | } ANPENDING; |
511 | } ANPENDING; |
457 | |
512 | |
458 | #if EV_USE_INOTIFY |
513 | #if EV_USE_INOTIFY |
459 | /* hash table entry per inotify-id */ |
514 | /* hash table entry per inotify-id */ |
460 | typedef struct |
515 | typedef struct |
… | |
… | |
463 | } ANFS; |
518 | } ANFS; |
464 | #endif |
519 | #endif |
465 | |
520 | |
466 | /* Heap Entry */ |
521 | /* Heap Entry */ |
467 | #if EV_HEAP_CACHE_AT |
522 | #if EV_HEAP_CACHE_AT |
|
|
523 | /* a heap element */ |
468 | typedef struct { |
524 | typedef struct { |
469 | ev_tstamp at; |
525 | ev_tstamp at; |
470 | WT w; |
526 | WT w; |
471 | } ANHE; |
527 | } ANHE; |
472 | |
528 | |
473 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
529 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
474 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
530 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
475 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
531 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
476 | #else |
532 | #else |
|
|
533 | /* a heap element */ |
477 | typedef WT ANHE; |
534 | typedef WT ANHE; |
478 | |
535 | |
479 | #define ANHE_w(he) (he) |
536 | #define ANHE_w(he) (he) |
480 | #define ANHE_at(he) (he)->at |
537 | #define ANHE_at(he) (he)->at |
481 | #define ANHE_at_cache(he) |
538 | #define ANHE_at_cache(he) |
… | |
… | |
511 | |
568 | |
512 | ev_tstamp |
569 | ev_tstamp |
513 | ev_time (void) |
570 | ev_time (void) |
514 | { |
571 | { |
515 | #if EV_USE_REALTIME |
572 | #if EV_USE_REALTIME |
|
|
573 | if (expect_true (have_realtime)) |
|
|
574 | { |
516 | struct timespec ts; |
575 | struct timespec ts; |
517 | clock_gettime (CLOCK_REALTIME, &ts); |
576 | clock_gettime (CLOCK_REALTIME, &ts); |
518 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
577 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
519 | #else |
578 | } |
|
|
579 | #endif |
|
|
580 | |
520 | struct timeval tv; |
581 | struct timeval tv; |
521 | gettimeofday (&tv, 0); |
582 | gettimeofday (&tv, 0); |
522 | return tv.tv_sec + tv.tv_usec * 1e-6; |
583 | return tv.tv_sec + tv.tv_usec * 1e-6; |
523 | #endif |
|
|
524 | } |
584 | } |
525 | |
585 | |
526 | ev_tstamp inline_size |
586 | inline_size ev_tstamp |
527 | get_clock (void) |
587 | get_clock (void) |
528 | { |
588 | { |
529 | #if EV_USE_MONOTONIC |
589 | #if EV_USE_MONOTONIC |
530 | if (expect_true (have_monotonic)) |
590 | if (expect_true (have_monotonic)) |
531 | { |
591 | { |
… | |
… | |
564 | struct timeval tv; |
624 | struct timeval tv; |
565 | |
625 | |
566 | tv.tv_sec = (time_t)delay; |
626 | tv.tv_sec = (time_t)delay; |
567 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
627 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
568 | |
628 | |
|
|
629 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
|
|
630 | /* somehting nto guaranteed by newer posix versions, but guaranteed */ |
|
|
631 | /* by older ones */ |
569 | select (0, 0, 0, 0, &tv); |
632 | select (0, 0, 0, 0, &tv); |
570 | #endif |
633 | #endif |
571 | } |
634 | } |
572 | } |
635 | } |
573 | |
636 | |
574 | /*****************************************************************************/ |
637 | /*****************************************************************************/ |
575 | |
638 | |
576 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
639 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
577 | |
640 | |
578 | int inline_size |
641 | /* find a suitable new size for the given array, */ |
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|
642 | /* hopefully by rounding to a ncie-to-malloc size */ |
|
|
643 | inline_size int |
579 | array_nextsize (int elem, int cur, int cnt) |
644 | array_nextsize (int elem, int cur, int cnt) |
580 | { |
645 | { |
581 | int ncur = cur + 1; |
646 | int ncur = cur + 1; |
582 | |
647 | |
583 | do |
648 | do |
… | |
… | |
600 | array_realloc (int elem, void *base, int *cur, int cnt) |
665 | array_realloc (int elem, void *base, int *cur, int cnt) |
601 | { |
666 | { |
602 | *cur = array_nextsize (elem, *cur, cnt); |
667 | *cur = array_nextsize (elem, *cur, cnt); |
603 | return ev_realloc (base, elem * *cur); |
668 | return ev_realloc (base, elem * *cur); |
604 | } |
669 | } |
|
|
670 | |
|
|
671 | #define array_init_zero(base,count) \ |
|
|
672 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
605 | |
673 | |
606 | #define array_needsize(type,base,cur,cnt,init) \ |
674 | #define array_needsize(type,base,cur,cnt,init) \ |
607 | if (expect_false ((cnt) > (cur))) \ |
675 | if (expect_false ((cnt) > (cur))) \ |
608 | { \ |
676 | { \ |
609 | int ocur_ = (cur); \ |
677 | int ocur_ = (cur); \ |
… | |
… | |
621 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
689 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
622 | } |
690 | } |
623 | #endif |
691 | #endif |
624 | |
692 | |
625 | #define array_free(stem, idx) \ |
693 | #define array_free(stem, idx) \ |
626 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
694 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
627 | |
695 | |
628 | /*****************************************************************************/ |
696 | /*****************************************************************************/ |
|
|
697 | |
|
|
698 | /* dummy callback for pending events */ |
|
|
699 | static void noinline |
|
|
700 | pendingcb (EV_P_ ev_prepare *w, int revents) |
|
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701 | { |
|
|
702 | } |
629 | |
703 | |
630 | void noinline |
704 | void noinline |
631 | ev_feed_event (EV_P_ void *w, int revents) |
705 | ev_feed_event (EV_P_ void *w, int revents) |
632 | { |
706 | { |
633 | W w_ = (W)w; |
707 | W w_ = (W)w; |
… | |
… | |
642 | pendings [pri][w_->pending - 1].w = w_; |
716 | pendings [pri][w_->pending - 1].w = w_; |
643 | pendings [pri][w_->pending - 1].events = revents; |
717 | pendings [pri][w_->pending - 1].events = revents; |
644 | } |
718 | } |
645 | } |
719 | } |
646 | |
720 | |
647 | void inline_speed |
721 | inline_speed void |
|
|
722 | feed_reverse (EV_P_ W w) |
|
|
723 | { |
|
|
724 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
|
|
725 | rfeeds [rfeedcnt++] = w; |
|
|
726 | } |
|
|
727 | |
|
|
728 | inline_size void |
|
|
729 | feed_reverse_done (EV_P_ int revents) |
|
|
730 | { |
|
|
731 | do |
|
|
732 | ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents); |
|
|
733 | while (rfeedcnt); |
|
|
734 | } |
|
|
735 | |
|
|
736 | inline_speed void |
648 | queue_events (EV_P_ W *events, int eventcnt, int type) |
737 | queue_events (EV_P_ W *events, int eventcnt, int type) |
649 | { |
738 | { |
650 | int i; |
739 | int i; |
651 | |
740 | |
652 | for (i = 0; i < eventcnt; ++i) |
741 | for (i = 0; i < eventcnt; ++i) |
653 | ev_feed_event (EV_A_ events [i], type); |
742 | ev_feed_event (EV_A_ events [i], type); |
654 | } |
743 | } |
655 | |
744 | |
656 | /*****************************************************************************/ |
745 | /*****************************************************************************/ |
657 | |
746 | |
658 | void inline_size |
747 | inline_speed void |
659 | anfds_init (ANFD *base, int count) |
|
|
660 | { |
|
|
661 | while (count--) |
|
|
662 | { |
|
|
663 | base->head = 0; |
|
|
664 | base->events = EV_NONE; |
|
|
665 | base->reify = 0; |
|
|
666 | |
|
|
667 | ++base; |
|
|
668 | } |
|
|
669 | } |
|
|
670 | |
|
|
671 | void inline_speed |
|
|
672 | fd_event (EV_P_ int fd, int revents) |
748 | fd_event (EV_P_ int fd, int revents) |
673 | { |
749 | { |
674 | ANFD *anfd = anfds + fd; |
750 | ANFD *anfd = anfds + fd; |
675 | ev_io *w; |
751 | ev_io *w; |
676 | |
752 | |
… | |
… | |
688 | { |
764 | { |
689 | if (fd >= 0 && fd < anfdmax) |
765 | if (fd >= 0 && fd < anfdmax) |
690 | fd_event (EV_A_ fd, revents); |
766 | fd_event (EV_A_ fd, revents); |
691 | } |
767 | } |
692 | |
768 | |
693 | void inline_size |
769 | /* make sure the external fd watch events are in-sync */ |
|
|
770 | /* with the kernel/libev internal state */ |
|
|
771 | inline_size void |
694 | fd_reify (EV_P) |
772 | fd_reify (EV_P) |
695 | { |
773 | { |
696 | int i; |
774 | int i; |
697 | |
775 | |
698 | for (i = 0; i < fdchangecnt; ++i) |
776 | for (i = 0; i < fdchangecnt; ++i) |
… | |
… | |
707 | events |= (unsigned char)w->events; |
785 | events |= (unsigned char)w->events; |
708 | |
786 | |
709 | #if EV_SELECT_IS_WINSOCKET |
787 | #if EV_SELECT_IS_WINSOCKET |
710 | if (events) |
788 | if (events) |
711 | { |
789 | { |
712 | unsigned long argp; |
790 | unsigned long arg; |
713 | #ifdef EV_FD_TO_WIN32_HANDLE |
791 | #ifdef EV_FD_TO_WIN32_HANDLE |
714 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
792 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
715 | #else |
793 | #else |
716 | anfd->handle = _get_osfhandle (fd); |
794 | anfd->handle = _get_osfhandle (fd); |
717 | #endif |
795 | #endif |
718 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
796 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
719 | } |
797 | } |
720 | #endif |
798 | #endif |
721 | |
799 | |
722 | { |
800 | { |
723 | unsigned char o_events = anfd->events; |
801 | unsigned char o_events = anfd->events; |
724 | unsigned char o_reify = anfd->reify; |
802 | unsigned char o_reify = anfd->reify; |
725 | |
803 | |
726 | anfd->reify = 0; |
804 | anfd->reify = 0; |
727 | anfd->events = events; |
805 | anfd->events = events; |
728 | |
806 | |
729 | if (o_events != events || o_reify & EV_IOFDSET) |
807 | if (o_events != events || o_reify & EV__IOFDSET) |
730 | backend_modify (EV_A_ fd, o_events, events); |
808 | backend_modify (EV_A_ fd, o_events, events); |
731 | } |
809 | } |
732 | } |
810 | } |
733 | |
811 | |
734 | fdchangecnt = 0; |
812 | fdchangecnt = 0; |
735 | } |
813 | } |
736 | |
814 | |
737 | void inline_size |
815 | /* something about the given fd changed */ |
|
|
816 | inline_size void |
738 | fd_change (EV_P_ int fd, int flags) |
817 | fd_change (EV_P_ int fd, int flags) |
739 | { |
818 | { |
740 | unsigned char reify = anfds [fd].reify; |
819 | unsigned char reify = anfds [fd].reify; |
741 | anfds [fd].reify |= flags; |
820 | anfds [fd].reify |= flags; |
742 | |
821 | |
… | |
… | |
746 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
825 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
747 | fdchanges [fdchangecnt - 1] = fd; |
826 | fdchanges [fdchangecnt - 1] = fd; |
748 | } |
827 | } |
749 | } |
828 | } |
750 | |
829 | |
751 | void inline_speed |
830 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
|
|
831 | inline_speed void |
752 | fd_kill (EV_P_ int fd) |
832 | fd_kill (EV_P_ int fd) |
753 | { |
833 | { |
754 | ev_io *w; |
834 | ev_io *w; |
755 | |
835 | |
756 | while ((w = (ev_io *)anfds [fd].head)) |
836 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
758 | ev_io_stop (EV_A_ w); |
838 | ev_io_stop (EV_A_ w); |
759 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
839 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
760 | } |
840 | } |
761 | } |
841 | } |
762 | |
842 | |
763 | int inline_size |
843 | /* check whether the given fd is atcually valid, for error recovery */ |
|
|
844 | inline_size int |
764 | fd_valid (int fd) |
845 | fd_valid (int fd) |
765 | { |
846 | { |
766 | #ifdef _WIN32 |
847 | #ifdef _WIN32 |
767 | return _get_osfhandle (fd) != -1; |
848 | return _get_osfhandle (fd) != -1; |
768 | #else |
849 | #else |
… | |
… | |
776 | { |
857 | { |
777 | int fd; |
858 | int fd; |
778 | |
859 | |
779 | for (fd = 0; fd < anfdmax; ++fd) |
860 | for (fd = 0; fd < anfdmax; ++fd) |
780 | if (anfds [fd].events) |
861 | if (anfds [fd].events) |
781 | if (!fd_valid (fd) == -1 && errno == EBADF) |
862 | if (!fd_valid (fd) && errno == EBADF) |
782 | fd_kill (EV_A_ fd); |
863 | fd_kill (EV_A_ fd); |
783 | } |
864 | } |
784 | |
865 | |
785 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
866 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
786 | static void noinline |
867 | static void noinline |
… | |
… | |
804 | |
885 | |
805 | for (fd = 0; fd < anfdmax; ++fd) |
886 | for (fd = 0; fd < anfdmax; ++fd) |
806 | if (anfds [fd].events) |
887 | if (anfds [fd].events) |
807 | { |
888 | { |
808 | anfds [fd].events = 0; |
889 | anfds [fd].events = 0; |
|
|
890 | anfds [fd].emask = 0; |
809 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
891 | fd_change (EV_A_ fd, EV__IOFDSET | 1); |
810 | } |
892 | } |
811 | } |
893 | } |
812 | |
894 | |
813 | /*****************************************************************************/ |
895 | /*****************************************************************************/ |
814 | |
896 | |
… | |
… | |
830 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
912 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
831 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
913 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
832 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
914 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
833 | |
915 | |
834 | /* away from the root */ |
916 | /* away from the root */ |
835 | void inline_speed |
917 | inline_speed void |
836 | downheap (ANHE *heap, int N, int k) |
918 | downheap (ANHE *heap, int N, int k) |
837 | { |
919 | { |
838 | ANHE he = heap [k]; |
920 | ANHE he = heap [k]; |
839 | ANHE *E = heap + N + HEAP0; |
921 | ANHE *E = heap + N + HEAP0; |
840 | |
922 | |
… | |
… | |
880 | #define HEAP0 1 |
962 | #define HEAP0 1 |
881 | #define HPARENT(k) ((k) >> 1) |
963 | #define HPARENT(k) ((k) >> 1) |
882 | #define UPHEAP_DONE(p,k) (!(p)) |
964 | #define UPHEAP_DONE(p,k) (!(p)) |
883 | |
965 | |
884 | /* away from the root */ |
966 | /* away from the root */ |
885 | void inline_speed |
967 | inline_speed void |
886 | downheap (ANHE *heap, int N, int k) |
968 | downheap (ANHE *heap, int N, int k) |
887 | { |
969 | { |
888 | ANHE he = heap [k]; |
970 | ANHE he = heap [k]; |
889 | |
971 | |
890 | for (;;) |
972 | for (;;) |
… | |
… | |
910 | ev_active (ANHE_w (he)) = k; |
992 | ev_active (ANHE_w (he)) = k; |
911 | } |
993 | } |
912 | #endif |
994 | #endif |
913 | |
995 | |
914 | /* towards the root */ |
996 | /* towards the root */ |
915 | void inline_speed |
997 | inline_speed void |
916 | upheap (ANHE *heap, int k) |
998 | upheap (ANHE *heap, int k) |
917 | { |
999 | { |
918 | ANHE he = heap [k]; |
1000 | ANHE he = heap [k]; |
919 | |
1001 | |
920 | for (;;) |
1002 | for (;;) |
… | |
… | |
931 | |
1013 | |
932 | heap [k] = he; |
1014 | heap [k] = he; |
933 | ev_active (ANHE_w (he)) = k; |
1015 | ev_active (ANHE_w (he)) = k; |
934 | } |
1016 | } |
935 | |
1017 | |
936 | void inline_size |
1018 | /* move an element suitably so it is in a correct place */ |
|
|
1019 | inline_size void |
937 | adjustheap (ANHE *heap, int N, int k) |
1020 | adjustheap (ANHE *heap, int N, int k) |
938 | { |
1021 | { |
939 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
1022 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
940 | upheap (heap, k); |
1023 | upheap (heap, k); |
941 | else |
1024 | else |
942 | downheap (heap, N, k); |
1025 | downheap (heap, N, k); |
943 | } |
1026 | } |
944 | |
1027 | |
945 | /* rebuild the heap: this function is used only once and executed rarely */ |
1028 | /* rebuild the heap: this function is used only once and executed rarely */ |
946 | void inline_size |
1029 | inline_size void |
947 | reheap (ANHE *heap, int N) |
1030 | reheap (ANHE *heap, int N) |
948 | { |
1031 | { |
949 | int i; |
1032 | int i; |
950 | |
1033 | |
951 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
1034 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
… | |
… | |
954 | upheap (heap, i + HEAP0); |
1037 | upheap (heap, i + HEAP0); |
955 | } |
1038 | } |
956 | |
1039 | |
957 | /*****************************************************************************/ |
1040 | /*****************************************************************************/ |
958 | |
1041 | |
|
|
1042 | /* associate signal watchers to a signal signal */ |
959 | typedef struct |
1043 | typedef struct |
960 | { |
1044 | { |
961 | WL head; |
1045 | WL head; |
962 | EV_ATOMIC_T gotsig; |
1046 | EV_ATOMIC_T gotsig; |
963 | } ANSIG; |
1047 | } ANSIG; |
… | |
… | |
965 | static ANSIG *signals; |
1049 | static ANSIG *signals; |
966 | static int signalmax; |
1050 | static int signalmax; |
967 | |
1051 | |
968 | static EV_ATOMIC_T gotsig; |
1052 | static EV_ATOMIC_T gotsig; |
969 | |
1053 | |
970 | void inline_size |
|
|
971 | signals_init (ANSIG *base, int count) |
|
|
972 | { |
|
|
973 | while (count--) |
|
|
974 | { |
|
|
975 | base->head = 0; |
|
|
976 | base->gotsig = 0; |
|
|
977 | |
|
|
978 | ++base; |
|
|
979 | } |
|
|
980 | } |
|
|
981 | |
|
|
982 | /*****************************************************************************/ |
1054 | /*****************************************************************************/ |
983 | |
1055 | |
984 | void inline_speed |
1056 | /* used to prepare libev internal fd's */ |
|
|
1057 | /* this is not fork-safe */ |
|
|
1058 | inline_speed void |
985 | fd_intern (int fd) |
1059 | fd_intern (int fd) |
986 | { |
1060 | { |
987 | #ifdef _WIN32 |
1061 | #ifdef _WIN32 |
988 | int arg = 1; |
1062 | unsigned long arg = 1; |
989 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
1063 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
990 | #else |
1064 | #else |
991 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
1065 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
992 | fcntl (fd, F_SETFL, O_NONBLOCK); |
1066 | fcntl (fd, F_SETFL, O_NONBLOCK); |
993 | #endif |
1067 | #endif |
994 | } |
1068 | } |
995 | |
1069 | |
996 | static void noinline |
1070 | static void noinline |
997 | evpipe_init (EV_P) |
1071 | evpipe_init (EV_P) |
998 | { |
1072 | { |
999 | if (!ev_is_active (&pipeev)) |
1073 | if (!ev_is_active (&pipe_w)) |
1000 | { |
1074 | { |
1001 | #if EV_USE_EVENTFD |
1075 | #if EV_USE_EVENTFD |
1002 | if ((evfd = eventfd (0, 0)) >= 0) |
1076 | if ((evfd = eventfd (0, 0)) >= 0) |
1003 | { |
1077 | { |
1004 | evpipe [0] = -1; |
1078 | evpipe [0] = -1; |
1005 | fd_intern (evfd); |
1079 | fd_intern (evfd); |
1006 | ev_io_set (&pipeev, evfd, EV_READ); |
1080 | ev_io_set (&pipe_w, evfd, EV_READ); |
1007 | } |
1081 | } |
1008 | else |
1082 | else |
1009 | #endif |
1083 | #endif |
1010 | { |
1084 | { |
1011 | while (pipe (evpipe)) |
1085 | while (pipe (evpipe)) |
1012 | syserr ("(libev) error creating signal/async pipe"); |
1086 | ev_syserr ("(libev) error creating signal/async pipe"); |
1013 | |
1087 | |
1014 | fd_intern (evpipe [0]); |
1088 | fd_intern (evpipe [0]); |
1015 | fd_intern (evpipe [1]); |
1089 | fd_intern (evpipe [1]); |
1016 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
1090 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
1017 | } |
1091 | } |
1018 | |
1092 | |
1019 | ev_io_start (EV_A_ &pipeev); |
1093 | ev_io_start (EV_A_ &pipe_w); |
1020 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1094 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1021 | } |
1095 | } |
1022 | } |
1096 | } |
1023 | |
1097 | |
1024 | void inline_size |
1098 | inline_size void |
1025 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1099 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1026 | { |
1100 | { |
1027 | if (!*flag) |
1101 | if (!*flag) |
1028 | { |
1102 | { |
1029 | int old_errno = errno; /* save errno because write might clobber it */ |
1103 | int old_errno = errno; /* save errno because write might clobber it */ |
… | |
… | |
1042 | |
1116 | |
1043 | errno = old_errno; |
1117 | errno = old_errno; |
1044 | } |
1118 | } |
1045 | } |
1119 | } |
1046 | |
1120 | |
|
|
1121 | /* called whenever the libev signal pipe */ |
|
|
1122 | /* got some events (signal, async) */ |
1047 | static void |
1123 | static void |
1048 | pipecb (EV_P_ ev_io *iow, int revents) |
1124 | pipecb (EV_P_ ev_io *iow, int revents) |
1049 | { |
1125 | { |
1050 | #if EV_USE_EVENTFD |
1126 | #if EV_USE_EVENTFD |
1051 | if (evfd >= 0) |
1127 | if (evfd >= 0) |
… | |
… | |
1107 | ev_feed_signal_event (EV_P_ int signum) |
1183 | ev_feed_signal_event (EV_P_ int signum) |
1108 | { |
1184 | { |
1109 | WL w; |
1185 | WL w; |
1110 | |
1186 | |
1111 | #if EV_MULTIPLICITY |
1187 | #if EV_MULTIPLICITY |
1112 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1188 | assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1113 | #endif |
1189 | #endif |
1114 | |
1190 | |
1115 | --signum; |
1191 | --signum; |
1116 | |
1192 | |
1117 | if (signum < 0 || signum >= signalmax) |
1193 | if (signum < 0 || signum >= signalmax) |
… | |
… | |
1133 | |
1209 | |
1134 | #ifndef WIFCONTINUED |
1210 | #ifndef WIFCONTINUED |
1135 | # define WIFCONTINUED(status) 0 |
1211 | # define WIFCONTINUED(status) 0 |
1136 | #endif |
1212 | #endif |
1137 | |
1213 | |
1138 | void inline_speed |
1214 | /* handle a single child status event */ |
|
|
1215 | inline_speed void |
1139 | child_reap (EV_P_ int chain, int pid, int status) |
1216 | child_reap (EV_P_ int chain, int pid, int status) |
1140 | { |
1217 | { |
1141 | ev_child *w; |
1218 | ev_child *w; |
1142 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1219 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1143 | |
1220 | |
… | |
… | |
1156 | |
1233 | |
1157 | #ifndef WCONTINUED |
1234 | #ifndef WCONTINUED |
1158 | # define WCONTINUED 0 |
1235 | # define WCONTINUED 0 |
1159 | #endif |
1236 | #endif |
1160 | |
1237 | |
|
|
1238 | /* called on sigchld etc., calls waitpid */ |
1161 | static void |
1239 | static void |
1162 | childcb (EV_P_ ev_signal *sw, int revents) |
1240 | childcb (EV_P_ ev_signal *sw, int revents) |
1163 | { |
1241 | { |
1164 | int pid, status; |
1242 | int pid, status; |
1165 | |
1243 | |
… | |
… | |
1246 | /* kqueue is borked on everything but netbsd apparently */ |
1324 | /* kqueue is borked on everything but netbsd apparently */ |
1247 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1325 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1248 | flags &= ~EVBACKEND_KQUEUE; |
1326 | flags &= ~EVBACKEND_KQUEUE; |
1249 | #endif |
1327 | #endif |
1250 | #ifdef __APPLE__ |
1328 | #ifdef __APPLE__ |
1251 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
1329 | /* only select works correctly on that "unix-certified" platform */ |
1252 | flags &= ~EVBACKEND_POLL; |
1330 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
|
|
1331 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
1253 | #endif |
1332 | #endif |
1254 | |
1333 | |
1255 | return flags; |
1334 | return flags; |
1256 | } |
1335 | } |
1257 | |
1336 | |
… | |
… | |
1289 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1368 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1290 | { |
1369 | { |
1291 | timeout_blocktime = interval; |
1370 | timeout_blocktime = interval; |
1292 | } |
1371 | } |
1293 | |
1372 | |
|
|
1373 | /* initialise a loop structure, must be zero-initialised */ |
1294 | static void noinline |
1374 | static void noinline |
1295 | loop_init (EV_P_ unsigned int flags) |
1375 | loop_init (EV_P_ unsigned int flags) |
1296 | { |
1376 | { |
1297 | if (!backend) |
1377 | if (!backend) |
1298 | { |
1378 | { |
|
|
1379 | #if EV_USE_REALTIME |
|
|
1380 | if (!have_realtime) |
|
|
1381 | { |
|
|
1382 | struct timespec ts; |
|
|
1383 | |
|
|
1384 | if (!clock_gettime (CLOCK_REALTIME, &ts)) |
|
|
1385 | have_realtime = 1; |
|
|
1386 | } |
|
|
1387 | #endif |
|
|
1388 | |
1299 | #if EV_USE_MONOTONIC |
1389 | #if EV_USE_MONOTONIC |
|
|
1390 | if (!have_monotonic) |
1300 | { |
1391 | { |
1301 | struct timespec ts; |
1392 | struct timespec ts; |
|
|
1393 | |
1302 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1394 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1303 | have_monotonic = 1; |
1395 | have_monotonic = 1; |
1304 | } |
1396 | } |
1305 | #endif |
1397 | #endif |
1306 | |
1398 | |
1307 | ev_rt_now = ev_time (); |
1399 | ev_rt_now = ev_time (); |
1308 | mn_now = get_clock (); |
1400 | mn_now = get_clock (); |
1309 | now_floor = mn_now; |
1401 | now_floor = mn_now; |
… | |
… | |
1346 | #endif |
1438 | #endif |
1347 | #if EV_USE_SELECT |
1439 | #if EV_USE_SELECT |
1348 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1440 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1349 | #endif |
1441 | #endif |
1350 | |
1442 | |
|
|
1443 | ev_prepare_init (&pending_w, pendingcb); |
|
|
1444 | |
1351 | ev_init (&pipeev, pipecb); |
1445 | ev_init (&pipe_w, pipecb); |
1352 | ev_set_priority (&pipeev, EV_MAXPRI); |
1446 | ev_set_priority (&pipe_w, EV_MAXPRI); |
1353 | } |
1447 | } |
1354 | } |
1448 | } |
1355 | |
1449 | |
|
|
1450 | /* free up a loop structure */ |
1356 | static void noinline |
1451 | static void noinline |
1357 | loop_destroy (EV_P) |
1452 | loop_destroy (EV_P) |
1358 | { |
1453 | { |
1359 | int i; |
1454 | int i; |
1360 | |
1455 | |
1361 | if (ev_is_active (&pipeev)) |
1456 | if (ev_is_active (&pipe_w)) |
1362 | { |
1457 | { |
1363 | ev_ref (EV_A); /* signal watcher */ |
1458 | ev_ref (EV_A); /* signal watcher */ |
1364 | ev_io_stop (EV_A_ &pipeev); |
1459 | ev_io_stop (EV_A_ &pipe_w); |
1365 | |
1460 | |
1366 | #if EV_USE_EVENTFD |
1461 | #if EV_USE_EVENTFD |
1367 | if (evfd >= 0) |
1462 | if (evfd >= 0) |
1368 | close (evfd); |
1463 | close (evfd); |
1369 | #endif |
1464 | #endif |
… | |
… | |
1408 | } |
1503 | } |
1409 | |
1504 | |
1410 | ev_free (anfds); anfdmax = 0; |
1505 | ev_free (anfds); anfdmax = 0; |
1411 | |
1506 | |
1412 | /* have to use the microsoft-never-gets-it-right macro */ |
1507 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
1508 | array_free (rfeed, EMPTY); |
1413 | array_free (fdchange, EMPTY); |
1509 | array_free (fdchange, EMPTY); |
1414 | array_free (timer, EMPTY); |
1510 | array_free (timer, EMPTY); |
1415 | #if EV_PERIODIC_ENABLE |
1511 | #if EV_PERIODIC_ENABLE |
1416 | array_free (periodic, EMPTY); |
1512 | array_free (periodic, EMPTY); |
1417 | #endif |
1513 | #endif |
… | |
… | |
1426 | |
1522 | |
1427 | backend = 0; |
1523 | backend = 0; |
1428 | } |
1524 | } |
1429 | |
1525 | |
1430 | #if EV_USE_INOTIFY |
1526 | #if EV_USE_INOTIFY |
1431 | void inline_size infy_fork (EV_P); |
1527 | inline_size void infy_fork (EV_P); |
1432 | #endif |
1528 | #endif |
1433 | |
1529 | |
1434 | void inline_size |
1530 | inline_size void |
1435 | loop_fork (EV_P) |
1531 | loop_fork (EV_P) |
1436 | { |
1532 | { |
1437 | #if EV_USE_PORT |
1533 | #if EV_USE_PORT |
1438 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1534 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1439 | #endif |
1535 | #endif |
… | |
… | |
1445 | #endif |
1541 | #endif |
1446 | #if EV_USE_INOTIFY |
1542 | #if EV_USE_INOTIFY |
1447 | infy_fork (EV_A); |
1543 | infy_fork (EV_A); |
1448 | #endif |
1544 | #endif |
1449 | |
1545 | |
1450 | if (ev_is_active (&pipeev)) |
1546 | if (ev_is_active (&pipe_w)) |
1451 | { |
1547 | { |
1452 | /* this "locks" the handlers against writing to the pipe */ |
1548 | /* this "locks" the handlers against writing to the pipe */ |
1453 | /* while we modify the fd vars */ |
1549 | /* while we modify the fd vars */ |
1454 | gotsig = 1; |
1550 | gotsig = 1; |
1455 | #if EV_ASYNC_ENABLE |
1551 | #if EV_ASYNC_ENABLE |
1456 | gotasync = 1; |
1552 | gotasync = 1; |
1457 | #endif |
1553 | #endif |
1458 | |
1554 | |
1459 | ev_ref (EV_A); |
1555 | ev_ref (EV_A); |
1460 | ev_io_stop (EV_A_ &pipeev); |
1556 | ev_io_stop (EV_A_ &pipe_w); |
1461 | |
1557 | |
1462 | #if EV_USE_EVENTFD |
1558 | #if EV_USE_EVENTFD |
1463 | if (evfd >= 0) |
1559 | if (evfd >= 0) |
1464 | close (evfd); |
1560 | close (evfd); |
1465 | #endif |
1561 | #endif |
… | |
… | |
1470 | close (evpipe [1]); |
1566 | close (evpipe [1]); |
1471 | } |
1567 | } |
1472 | |
1568 | |
1473 | evpipe_init (EV_A); |
1569 | evpipe_init (EV_A); |
1474 | /* now iterate over everything, in case we missed something */ |
1570 | /* now iterate over everything, in case we missed something */ |
1475 | pipecb (EV_A_ &pipeev, EV_READ); |
1571 | pipecb (EV_A_ &pipe_w, EV_READ); |
1476 | } |
1572 | } |
1477 | |
1573 | |
1478 | postfork = 0; |
1574 | postfork = 0; |
1479 | } |
1575 | } |
1480 | |
1576 | |
… | |
… | |
1507 | { |
1603 | { |
1508 | postfork = 1; /* must be in line with ev_default_fork */ |
1604 | postfork = 1; /* must be in line with ev_default_fork */ |
1509 | } |
1605 | } |
1510 | |
1606 | |
1511 | #if EV_VERIFY |
1607 | #if EV_VERIFY |
1512 | void noinline |
1608 | static void noinline |
1513 | verify_watcher (EV_P_ W w) |
1609 | verify_watcher (EV_P_ W w) |
1514 | { |
1610 | { |
1515 | assert (("watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
1611 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
1516 | |
1612 | |
1517 | if (w->pending) |
1613 | if (w->pending) |
1518 | assert (("pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
1614 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
1519 | } |
1615 | } |
1520 | |
1616 | |
1521 | static void noinline |
1617 | static void noinline |
1522 | verify_heap (EV_P_ ANHE *heap, int N) |
1618 | verify_heap (EV_P_ ANHE *heap, int N) |
1523 | { |
1619 | { |
1524 | int i; |
1620 | int i; |
1525 | |
1621 | |
1526 | for (i = HEAP0; i < N + HEAP0; ++i) |
1622 | for (i = HEAP0; i < N + HEAP0; ++i) |
1527 | { |
1623 | { |
1528 | assert (("active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
1624 | assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
1529 | assert (("heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
1625 | assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
1530 | assert (("heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
1626 | assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
1531 | |
1627 | |
1532 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
1628 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
1533 | } |
1629 | } |
1534 | } |
1630 | } |
1535 | |
1631 | |
1536 | static void noinline |
1632 | static void noinline |
1537 | array_verify (EV_P_ W *ws, int cnt) |
1633 | array_verify (EV_P_ W *ws, int cnt) |
1538 | { |
1634 | { |
1539 | while (cnt--) |
1635 | while (cnt--) |
1540 | { |
1636 | { |
1541 | assert (("active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
1637 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
1542 | verify_watcher (EV_A_ ws [cnt]); |
1638 | verify_watcher (EV_A_ ws [cnt]); |
1543 | } |
1639 | } |
1544 | } |
1640 | } |
1545 | #endif |
1641 | #endif |
1546 | |
1642 | |
… | |
… | |
1553 | |
1649 | |
1554 | assert (activecnt >= -1); |
1650 | assert (activecnt >= -1); |
1555 | |
1651 | |
1556 | assert (fdchangemax >= fdchangecnt); |
1652 | assert (fdchangemax >= fdchangecnt); |
1557 | for (i = 0; i < fdchangecnt; ++i) |
1653 | for (i = 0; i < fdchangecnt; ++i) |
1558 | assert (("negative fd in fdchanges", fdchanges [i] >= 0)); |
1654 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
1559 | |
1655 | |
1560 | assert (anfdmax >= 0); |
1656 | assert (anfdmax >= 0); |
1561 | for (i = 0; i < anfdmax; ++i) |
1657 | for (i = 0; i < anfdmax; ++i) |
1562 | for (w = anfds [i].head; w; w = w->next) |
1658 | for (w = anfds [i].head; w; w = w->next) |
1563 | { |
1659 | { |
1564 | verify_watcher (EV_A_ (W)w); |
1660 | verify_watcher (EV_A_ (W)w); |
1565 | assert (("inactive fd watcher on anfd list", ev_active (w) == 1)); |
1661 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
1566 | assert (("fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
1662 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
1567 | } |
1663 | } |
1568 | |
1664 | |
1569 | assert (timermax >= timercnt); |
1665 | assert (timermax >= timercnt); |
1570 | verify_heap (EV_A_ timers, timercnt); |
1666 | verify_heap (EV_A_ timers, timercnt); |
1571 | |
1667 | |
… | |
… | |
1648 | { |
1744 | { |
1649 | #if EV_MULTIPLICITY |
1745 | #if EV_MULTIPLICITY |
1650 | struct ev_loop *loop = ev_default_loop_ptr; |
1746 | struct ev_loop *loop = ev_default_loop_ptr; |
1651 | #endif |
1747 | #endif |
1652 | |
1748 | |
|
|
1749 | ev_default_loop_ptr = 0; |
|
|
1750 | |
1653 | #ifndef _WIN32 |
1751 | #ifndef _WIN32 |
1654 | ev_ref (EV_A); /* child watcher */ |
1752 | ev_ref (EV_A); /* child watcher */ |
1655 | ev_signal_stop (EV_A_ &childev); |
1753 | ev_signal_stop (EV_A_ &childev); |
1656 | #endif |
1754 | #endif |
1657 | |
1755 | |
… | |
… | |
1663 | { |
1761 | { |
1664 | #if EV_MULTIPLICITY |
1762 | #if EV_MULTIPLICITY |
1665 | struct ev_loop *loop = ev_default_loop_ptr; |
1763 | struct ev_loop *loop = ev_default_loop_ptr; |
1666 | #endif |
1764 | #endif |
1667 | |
1765 | |
1668 | if (backend) |
|
|
1669 | postfork = 1; /* must be in line with ev_loop_fork */ |
1766 | postfork = 1; /* must be in line with ev_loop_fork */ |
1670 | } |
1767 | } |
1671 | |
1768 | |
1672 | /*****************************************************************************/ |
1769 | /*****************************************************************************/ |
1673 | |
1770 | |
1674 | void |
1771 | void |
1675 | ev_invoke (EV_P_ void *w, int revents) |
1772 | ev_invoke (EV_P_ void *w, int revents) |
1676 | { |
1773 | { |
1677 | EV_CB_INVOKE ((W)w, revents); |
1774 | EV_CB_INVOKE ((W)w, revents); |
1678 | } |
1775 | } |
1679 | |
1776 | |
1680 | void inline_speed |
1777 | inline_speed void |
1681 | call_pending (EV_P) |
1778 | call_pending (EV_P) |
1682 | { |
1779 | { |
1683 | int pri; |
1780 | int pri; |
1684 | |
1781 | |
1685 | for (pri = NUMPRI; pri--; ) |
1782 | for (pri = NUMPRI; pri--; ) |
1686 | while (pendingcnt [pri]) |
1783 | while (pendingcnt [pri]) |
1687 | { |
1784 | { |
1688 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1785 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1689 | |
1786 | |
1690 | if (expect_true (p->w)) |
|
|
1691 | { |
|
|
1692 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
1787 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
|
|
1788 | /* ^ this is no longer true, as pending_w could be here */ |
1693 | |
1789 | |
1694 | p->w->pending = 0; |
1790 | p->w->pending = 0; |
1695 | EV_CB_INVOKE (p->w, p->events); |
1791 | EV_CB_INVOKE (p->w, p->events); |
1696 | EV_FREQUENT_CHECK; |
1792 | EV_FREQUENT_CHECK; |
1697 | } |
|
|
1698 | } |
1793 | } |
1699 | } |
1794 | } |
1700 | |
1795 | |
1701 | #if EV_IDLE_ENABLE |
1796 | #if EV_IDLE_ENABLE |
1702 | void inline_size |
1797 | /* make idle watchers pending. this handles the "call-idle */ |
|
|
1798 | /* only when higher priorities are idle" logic */ |
|
|
1799 | inline_size void |
1703 | idle_reify (EV_P) |
1800 | idle_reify (EV_P) |
1704 | { |
1801 | { |
1705 | if (expect_false (idleall)) |
1802 | if (expect_false (idleall)) |
1706 | { |
1803 | { |
1707 | int pri; |
1804 | int pri; |
… | |
… | |
1719 | } |
1816 | } |
1720 | } |
1817 | } |
1721 | } |
1818 | } |
1722 | #endif |
1819 | #endif |
1723 | |
1820 | |
1724 | void inline_size |
1821 | /* make timers pending */ |
|
|
1822 | inline_size void |
1725 | timers_reify (EV_P) |
1823 | timers_reify (EV_P) |
1726 | { |
1824 | { |
1727 | EV_FREQUENT_CHECK; |
1825 | EV_FREQUENT_CHECK; |
1728 | |
1826 | |
1729 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
1827 | if (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
1730 | { |
1828 | { |
1731 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
1829 | do |
1732 | |
|
|
1733 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1734 | |
|
|
1735 | /* first reschedule or stop timer */ |
|
|
1736 | if (w->repeat) |
|
|
1737 | { |
1830 | { |
|
|
1831 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
|
|
1832 | |
|
|
1833 | /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1834 | |
|
|
1835 | /* first reschedule or stop timer */ |
|
|
1836 | if (w->repeat) |
|
|
1837 | { |
1738 | ev_at (w) += w->repeat; |
1838 | ev_at (w) += w->repeat; |
1739 | if (ev_at (w) < mn_now) |
1839 | if (ev_at (w) < mn_now) |
1740 | ev_at (w) = mn_now; |
1840 | ev_at (w) = mn_now; |
1741 | |
1841 | |
1742 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1842 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1743 | |
1843 | |
1744 | ANHE_at_cache (timers [HEAP0]); |
1844 | ANHE_at_cache (timers [HEAP0]); |
1745 | downheap (timers, timercnt, HEAP0); |
1845 | downheap (timers, timercnt, HEAP0); |
|
|
1846 | } |
|
|
1847 | else |
|
|
1848 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1849 | |
|
|
1850 | EV_FREQUENT_CHECK; |
|
|
1851 | feed_reverse (EV_A_ (W)w); |
1746 | } |
1852 | } |
1747 | else |
1853 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
1748 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1749 | |
1854 | |
1750 | EV_FREQUENT_CHECK; |
|
|
1751 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
1855 | feed_reverse_done (EV_A_ EV_TIMEOUT); |
1752 | } |
1856 | } |
1753 | } |
1857 | } |
1754 | |
1858 | |
1755 | #if EV_PERIODIC_ENABLE |
1859 | #if EV_PERIODIC_ENABLE |
1756 | void inline_size |
1860 | /* make periodics pending */ |
|
|
1861 | inline_size void |
1757 | periodics_reify (EV_P) |
1862 | periodics_reify (EV_P) |
1758 | { |
1863 | { |
1759 | EV_FREQUENT_CHECK; |
1864 | EV_FREQUENT_CHECK; |
1760 | |
1865 | |
1761 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
1866 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
1762 | { |
1867 | { |
1763 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
1868 | int feed_count = 0; |
1764 | |
1869 | |
1765 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
1870 | do |
1766 | |
|
|
1767 | /* first reschedule or stop timer */ |
|
|
1768 | if (w->reschedule_cb) |
|
|
1769 | { |
1871 | { |
|
|
1872 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
|
|
1873 | |
|
|
1874 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
1875 | |
|
|
1876 | /* first reschedule or stop timer */ |
|
|
1877 | if (w->reschedule_cb) |
|
|
1878 | { |
1770 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1879 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1771 | |
1880 | |
1772 | assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
1881 | assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
1773 | |
1882 | |
1774 | ANHE_at_cache (periodics [HEAP0]); |
1883 | ANHE_at_cache (periodics [HEAP0]); |
1775 | downheap (periodics, periodiccnt, HEAP0); |
1884 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1885 | } |
|
|
1886 | else if (w->interval) |
|
|
1887 | { |
|
|
1888 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1889 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
1890 | /* this might happen because of floating point inexactness */ |
|
|
1891 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
1892 | { |
|
|
1893 | ev_at (w) += w->interval; |
|
|
1894 | |
|
|
1895 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
1896 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
1897 | /* has effectively asked to get triggered more often than possible */ |
|
|
1898 | if (ev_at (w) < ev_rt_now) |
|
|
1899 | ev_at (w) = ev_rt_now; |
|
|
1900 | } |
|
|
1901 | |
|
|
1902 | ANHE_at_cache (periodics [HEAP0]); |
|
|
1903 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1904 | } |
|
|
1905 | else |
|
|
1906 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1907 | |
|
|
1908 | EV_FREQUENT_CHECK; |
|
|
1909 | feed_reverse (EV_A_ (W)w); |
1776 | } |
1910 | } |
1777 | else if (w->interval) |
1911 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now); |
1778 | { |
|
|
1779 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1780 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
1781 | /* this might happen because of floating point inexactness */ |
|
|
1782 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
1783 | { |
|
|
1784 | ev_at (w) += w->interval; |
|
|
1785 | |
1912 | |
1786 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
1787 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
1788 | /* has effectively asked to get triggered more often than possible */ |
|
|
1789 | if (ev_at (w) < ev_rt_now) |
|
|
1790 | ev_at (w) = ev_rt_now; |
|
|
1791 | } |
|
|
1792 | |
|
|
1793 | ANHE_at_cache (periodics [HEAP0]); |
|
|
1794 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1795 | } |
|
|
1796 | else |
|
|
1797 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1798 | |
|
|
1799 | EV_FREQUENT_CHECK; |
|
|
1800 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
1913 | feed_reverse_done (EV_A_ EV_PERIODIC); |
1801 | } |
1914 | } |
1802 | } |
1915 | } |
1803 | |
1916 | |
|
|
1917 | /* simply recalculate all periodics */ |
|
|
1918 | /* TODO: maybe ensure that at leats one event happens when jumping forward? */ |
1804 | static void noinline |
1919 | static void noinline |
1805 | periodics_reschedule (EV_P) |
1920 | periodics_reschedule (EV_P) |
1806 | { |
1921 | { |
1807 | int i; |
1922 | int i; |
1808 | |
1923 | |
… | |
… | |
1821 | |
1936 | |
1822 | reheap (periodics, periodiccnt); |
1937 | reheap (periodics, periodiccnt); |
1823 | } |
1938 | } |
1824 | #endif |
1939 | #endif |
1825 | |
1940 | |
1826 | void inline_speed |
1941 | /* adjust all timers by a given offset */ |
|
|
1942 | static void noinline |
|
|
1943 | timers_reschedule (EV_P_ ev_tstamp adjust) |
|
|
1944 | { |
|
|
1945 | int i; |
|
|
1946 | |
|
|
1947 | for (i = 0; i < timercnt; ++i) |
|
|
1948 | { |
|
|
1949 | ANHE *he = timers + i + HEAP0; |
|
|
1950 | ANHE_w (*he)->at += adjust; |
|
|
1951 | ANHE_at_cache (*he); |
|
|
1952 | } |
|
|
1953 | } |
|
|
1954 | |
|
|
1955 | /* fetch new monotonic and realtime times from the kernel */ |
|
|
1956 | /* also detetc if there was a timejump, and act accordingly */ |
|
|
1957 | inline_speed void |
1827 | time_update (EV_P_ ev_tstamp max_block) |
1958 | time_update (EV_P_ ev_tstamp max_block) |
1828 | { |
1959 | { |
1829 | int i; |
|
|
1830 | |
|
|
1831 | #if EV_USE_MONOTONIC |
1960 | #if EV_USE_MONOTONIC |
1832 | if (expect_true (have_monotonic)) |
1961 | if (expect_true (have_monotonic)) |
1833 | { |
1962 | { |
|
|
1963 | int i; |
1834 | ev_tstamp odiff = rtmn_diff; |
1964 | ev_tstamp odiff = rtmn_diff; |
1835 | |
1965 | |
1836 | mn_now = get_clock (); |
1966 | mn_now = get_clock (); |
1837 | |
1967 | |
1838 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
1968 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
… | |
… | |
1864 | ev_rt_now = ev_time (); |
1994 | ev_rt_now = ev_time (); |
1865 | mn_now = get_clock (); |
1995 | mn_now = get_clock (); |
1866 | now_floor = mn_now; |
1996 | now_floor = mn_now; |
1867 | } |
1997 | } |
1868 | |
1998 | |
|
|
1999 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
2000 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1869 | # if EV_PERIODIC_ENABLE |
2001 | # if EV_PERIODIC_ENABLE |
1870 | periodics_reschedule (EV_A); |
2002 | periodics_reschedule (EV_A); |
1871 | # endif |
2003 | # endif |
1872 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1873 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1874 | } |
2004 | } |
1875 | else |
2005 | else |
1876 | #endif |
2006 | #endif |
1877 | { |
2007 | { |
1878 | ev_rt_now = ev_time (); |
2008 | ev_rt_now = ev_time (); |
1879 | |
2009 | |
1880 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
2010 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
1881 | { |
2011 | { |
|
|
2012 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
2013 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
1882 | #if EV_PERIODIC_ENABLE |
2014 | #if EV_PERIODIC_ENABLE |
1883 | periodics_reschedule (EV_A); |
2015 | periodics_reschedule (EV_A); |
1884 | #endif |
2016 | #endif |
1885 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1886 | for (i = 0; i < timercnt; ++i) |
|
|
1887 | { |
|
|
1888 | ANHE *he = timers + i + HEAP0; |
|
|
1889 | ANHE_w (*he)->at += ev_rt_now - mn_now; |
|
|
1890 | ANHE_at_cache (*he); |
|
|
1891 | } |
|
|
1892 | } |
2017 | } |
1893 | |
2018 | |
1894 | mn_now = ev_rt_now; |
2019 | mn_now = ev_rt_now; |
1895 | } |
2020 | } |
1896 | } |
|
|
1897 | |
|
|
1898 | void |
|
|
1899 | ev_ref (EV_P) |
|
|
1900 | { |
|
|
1901 | ++activecnt; |
|
|
1902 | } |
|
|
1903 | |
|
|
1904 | void |
|
|
1905 | ev_unref (EV_P) |
|
|
1906 | { |
|
|
1907 | --activecnt; |
|
|
1908 | } |
2021 | } |
1909 | |
2022 | |
1910 | static int loop_done; |
2023 | static int loop_done; |
1911 | |
2024 | |
1912 | void |
2025 | void |
… | |
… | |
1946 | { |
2059 | { |
1947 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2060 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1948 | call_pending (EV_A); |
2061 | call_pending (EV_A); |
1949 | } |
2062 | } |
1950 | |
2063 | |
1951 | if (expect_false (!activecnt)) |
|
|
1952 | break; |
|
|
1953 | |
|
|
1954 | /* we might have forked, so reify kernel state if necessary */ |
2064 | /* we might have forked, so reify kernel state if necessary */ |
1955 | if (expect_false (postfork)) |
2065 | if (expect_false (postfork)) |
1956 | loop_fork (EV_A); |
2066 | loop_fork (EV_A); |
1957 | |
2067 | |
1958 | /* update fd-related kernel structures */ |
2068 | /* update fd-related kernel structures */ |
… | |
… | |
2037 | ev_unloop (EV_P_ int how) |
2147 | ev_unloop (EV_P_ int how) |
2038 | { |
2148 | { |
2039 | loop_done = how; |
2149 | loop_done = how; |
2040 | } |
2150 | } |
2041 | |
2151 | |
|
|
2152 | void |
|
|
2153 | ev_ref (EV_P) |
|
|
2154 | { |
|
|
2155 | ++activecnt; |
|
|
2156 | } |
|
|
2157 | |
|
|
2158 | void |
|
|
2159 | ev_unref (EV_P) |
|
|
2160 | { |
|
|
2161 | --activecnt; |
|
|
2162 | } |
|
|
2163 | |
|
|
2164 | void |
|
|
2165 | ev_now_update (EV_P) |
|
|
2166 | { |
|
|
2167 | time_update (EV_A_ 1e100); |
|
|
2168 | } |
|
|
2169 | |
|
|
2170 | void |
|
|
2171 | ev_suspend (EV_P) |
|
|
2172 | { |
|
|
2173 | ev_now_update (EV_A); |
|
|
2174 | } |
|
|
2175 | |
|
|
2176 | void |
|
|
2177 | ev_resume (EV_P) |
|
|
2178 | { |
|
|
2179 | ev_tstamp mn_prev = mn_now; |
|
|
2180 | |
|
|
2181 | ev_now_update (EV_A); |
|
|
2182 | timers_reschedule (EV_A_ mn_now - mn_prev); |
|
|
2183 | #if EV_PERIODIC_ENABLE |
|
|
2184 | /* TODO: really do this? */ |
|
|
2185 | periodics_reschedule (EV_A); |
|
|
2186 | #endif |
|
|
2187 | } |
|
|
2188 | |
2042 | /*****************************************************************************/ |
2189 | /*****************************************************************************/ |
|
|
2190 | /* singly-linked list management, used when the expected list length is short */ |
2043 | |
2191 | |
2044 | void inline_size |
2192 | inline_size void |
2045 | wlist_add (WL *head, WL elem) |
2193 | wlist_add (WL *head, WL elem) |
2046 | { |
2194 | { |
2047 | elem->next = *head; |
2195 | elem->next = *head; |
2048 | *head = elem; |
2196 | *head = elem; |
2049 | } |
2197 | } |
2050 | |
2198 | |
2051 | void inline_size |
2199 | inline_size void |
2052 | wlist_del (WL *head, WL elem) |
2200 | wlist_del (WL *head, WL elem) |
2053 | { |
2201 | { |
2054 | while (*head) |
2202 | while (*head) |
2055 | { |
2203 | { |
2056 | if (*head == elem) |
2204 | if (*head == elem) |
… | |
… | |
2061 | |
2209 | |
2062 | head = &(*head)->next; |
2210 | head = &(*head)->next; |
2063 | } |
2211 | } |
2064 | } |
2212 | } |
2065 | |
2213 | |
2066 | void inline_speed |
2214 | /* internal, faster, version of ev_clear_pending */ |
|
|
2215 | inline_speed void |
2067 | clear_pending (EV_P_ W w) |
2216 | clear_pending (EV_P_ W w) |
2068 | { |
2217 | { |
2069 | if (w->pending) |
2218 | if (w->pending) |
2070 | { |
2219 | { |
2071 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
2220 | pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w; |
2072 | w->pending = 0; |
2221 | w->pending = 0; |
2073 | } |
2222 | } |
2074 | } |
2223 | } |
2075 | |
2224 | |
2076 | int |
2225 | int |
… | |
… | |
2080 | int pending = w_->pending; |
2229 | int pending = w_->pending; |
2081 | |
2230 | |
2082 | if (expect_true (pending)) |
2231 | if (expect_true (pending)) |
2083 | { |
2232 | { |
2084 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
2233 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
2234 | p->w = (W)&pending_w; |
2085 | w_->pending = 0; |
2235 | w_->pending = 0; |
2086 | p->w = 0; |
|
|
2087 | return p->events; |
2236 | return p->events; |
2088 | } |
2237 | } |
2089 | else |
2238 | else |
2090 | return 0; |
2239 | return 0; |
2091 | } |
2240 | } |
2092 | |
2241 | |
2093 | void inline_size |
2242 | inline_size void |
2094 | pri_adjust (EV_P_ W w) |
2243 | pri_adjust (EV_P_ W w) |
2095 | { |
2244 | { |
2096 | int pri = w->priority; |
2245 | int pri = w->priority; |
2097 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2246 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2098 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2247 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2099 | w->priority = pri; |
2248 | w->priority = pri; |
2100 | } |
2249 | } |
2101 | |
2250 | |
2102 | void inline_speed |
2251 | inline_speed void |
2103 | ev_start (EV_P_ W w, int active) |
2252 | ev_start (EV_P_ W w, int active) |
2104 | { |
2253 | { |
2105 | pri_adjust (EV_A_ w); |
2254 | pri_adjust (EV_A_ w); |
2106 | w->active = active; |
2255 | w->active = active; |
2107 | ev_ref (EV_A); |
2256 | ev_ref (EV_A); |
2108 | } |
2257 | } |
2109 | |
2258 | |
2110 | void inline_size |
2259 | inline_size void |
2111 | ev_stop (EV_P_ W w) |
2260 | ev_stop (EV_P_ W w) |
2112 | { |
2261 | { |
2113 | ev_unref (EV_A); |
2262 | ev_unref (EV_A); |
2114 | w->active = 0; |
2263 | w->active = 0; |
2115 | } |
2264 | } |
… | |
… | |
2122 | int fd = w->fd; |
2271 | int fd = w->fd; |
2123 | |
2272 | |
2124 | if (expect_false (ev_is_active (w))) |
2273 | if (expect_false (ev_is_active (w))) |
2125 | return; |
2274 | return; |
2126 | |
2275 | |
2127 | assert (("ev_io_start called with negative fd", fd >= 0)); |
2276 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
|
|
2277 | assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2128 | |
2278 | |
2129 | EV_FREQUENT_CHECK; |
2279 | EV_FREQUENT_CHECK; |
2130 | |
2280 | |
2131 | ev_start (EV_A_ (W)w, 1); |
2281 | ev_start (EV_A_ (W)w, 1); |
2132 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
2282 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2133 | wlist_add (&anfds[fd].head, (WL)w); |
2283 | wlist_add (&anfds[fd].head, (WL)w); |
2134 | |
2284 | |
2135 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
2285 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | 1); |
2136 | w->events &= ~EV_IOFDSET; |
2286 | w->events &= ~EV__IOFDSET; |
2137 | |
2287 | |
2138 | EV_FREQUENT_CHECK; |
2288 | EV_FREQUENT_CHECK; |
2139 | } |
2289 | } |
2140 | |
2290 | |
2141 | void noinline |
2291 | void noinline |
… | |
… | |
2143 | { |
2293 | { |
2144 | clear_pending (EV_A_ (W)w); |
2294 | clear_pending (EV_A_ (W)w); |
2145 | if (expect_false (!ev_is_active (w))) |
2295 | if (expect_false (!ev_is_active (w))) |
2146 | return; |
2296 | return; |
2147 | |
2297 | |
2148 | assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2298 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2149 | |
2299 | |
2150 | EV_FREQUENT_CHECK; |
2300 | EV_FREQUENT_CHECK; |
2151 | |
2301 | |
2152 | wlist_del (&anfds[w->fd].head, (WL)w); |
2302 | wlist_del (&anfds[w->fd].head, (WL)w); |
2153 | ev_stop (EV_A_ (W)w); |
2303 | ev_stop (EV_A_ (W)w); |
… | |
… | |
2163 | if (expect_false (ev_is_active (w))) |
2313 | if (expect_false (ev_is_active (w))) |
2164 | return; |
2314 | return; |
2165 | |
2315 | |
2166 | ev_at (w) += mn_now; |
2316 | ev_at (w) += mn_now; |
2167 | |
2317 | |
2168 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2318 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2169 | |
2319 | |
2170 | EV_FREQUENT_CHECK; |
2320 | EV_FREQUENT_CHECK; |
2171 | |
2321 | |
2172 | ++timercnt; |
2322 | ++timercnt; |
2173 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
2323 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
… | |
… | |
2176 | ANHE_at_cache (timers [ev_active (w)]); |
2326 | ANHE_at_cache (timers [ev_active (w)]); |
2177 | upheap (timers, ev_active (w)); |
2327 | upheap (timers, ev_active (w)); |
2178 | |
2328 | |
2179 | EV_FREQUENT_CHECK; |
2329 | EV_FREQUENT_CHECK; |
2180 | |
2330 | |
2181 | /*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2331 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2182 | } |
2332 | } |
2183 | |
2333 | |
2184 | void noinline |
2334 | void noinline |
2185 | ev_timer_stop (EV_P_ ev_timer *w) |
2335 | ev_timer_stop (EV_P_ ev_timer *w) |
2186 | { |
2336 | { |
… | |
… | |
2191 | EV_FREQUENT_CHECK; |
2341 | EV_FREQUENT_CHECK; |
2192 | |
2342 | |
2193 | { |
2343 | { |
2194 | int active = ev_active (w); |
2344 | int active = ev_active (w); |
2195 | |
2345 | |
2196 | assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
2346 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
2197 | |
2347 | |
2198 | --timercnt; |
2348 | --timercnt; |
2199 | |
2349 | |
2200 | if (expect_true (active < timercnt + HEAP0)) |
2350 | if (expect_true (active < timercnt + HEAP0)) |
2201 | { |
2351 | { |
… | |
… | |
2245 | |
2395 | |
2246 | if (w->reschedule_cb) |
2396 | if (w->reschedule_cb) |
2247 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2397 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2248 | else if (w->interval) |
2398 | else if (w->interval) |
2249 | { |
2399 | { |
2250 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2400 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2251 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2401 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2252 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2402 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2253 | } |
2403 | } |
2254 | else |
2404 | else |
2255 | ev_at (w) = w->offset; |
2405 | ev_at (w) = w->offset; |
… | |
… | |
2263 | ANHE_at_cache (periodics [ev_active (w)]); |
2413 | ANHE_at_cache (periodics [ev_active (w)]); |
2264 | upheap (periodics, ev_active (w)); |
2414 | upheap (periodics, ev_active (w)); |
2265 | |
2415 | |
2266 | EV_FREQUENT_CHECK; |
2416 | EV_FREQUENT_CHECK; |
2267 | |
2417 | |
2268 | /*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2418 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2269 | } |
2419 | } |
2270 | |
2420 | |
2271 | void noinline |
2421 | void noinline |
2272 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2422 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2273 | { |
2423 | { |
… | |
… | |
2278 | EV_FREQUENT_CHECK; |
2428 | EV_FREQUENT_CHECK; |
2279 | |
2429 | |
2280 | { |
2430 | { |
2281 | int active = ev_active (w); |
2431 | int active = ev_active (w); |
2282 | |
2432 | |
2283 | assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
2433 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
2284 | |
2434 | |
2285 | --periodiccnt; |
2435 | --periodiccnt; |
2286 | |
2436 | |
2287 | if (expect_true (active < periodiccnt + HEAP0)) |
2437 | if (expect_true (active < periodiccnt + HEAP0)) |
2288 | { |
2438 | { |
… | |
… | |
2311 | |
2461 | |
2312 | void noinline |
2462 | void noinline |
2313 | ev_signal_start (EV_P_ ev_signal *w) |
2463 | ev_signal_start (EV_P_ ev_signal *w) |
2314 | { |
2464 | { |
2315 | #if EV_MULTIPLICITY |
2465 | #if EV_MULTIPLICITY |
2316 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2466 | assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2317 | #endif |
2467 | #endif |
2318 | if (expect_false (ev_is_active (w))) |
2468 | if (expect_false (ev_is_active (w))) |
2319 | return; |
2469 | return; |
2320 | |
2470 | |
2321 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2471 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); |
2322 | |
2472 | |
2323 | evpipe_init (EV_A); |
2473 | evpipe_init (EV_A); |
2324 | |
2474 | |
2325 | EV_FREQUENT_CHECK; |
2475 | EV_FREQUENT_CHECK; |
2326 | |
2476 | |
… | |
… | |
2329 | sigset_t full, prev; |
2479 | sigset_t full, prev; |
2330 | sigfillset (&full); |
2480 | sigfillset (&full); |
2331 | sigprocmask (SIG_SETMASK, &full, &prev); |
2481 | sigprocmask (SIG_SETMASK, &full, &prev); |
2332 | #endif |
2482 | #endif |
2333 | |
2483 | |
2334 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
2484 | array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); |
2335 | |
2485 | |
2336 | #ifndef _WIN32 |
2486 | #ifndef _WIN32 |
2337 | sigprocmask (SIG_SETMASK, &prev, 0); |
2487 | sigprocmask (SIG_SETMASK, &prev, 0); |
2338 | #endif |
2488 | #endif |
2339 | } |
2489 | } |
… | |
… | |
2377 | |
2527 | |
2378 | void |
2528 | void |
2379 | ev_child_start (EV_P_ ev_child *w) |
2529 | ev_child_start (EV_P_ ev_child *w) |
2380 | { |
2530 | { |
2381 | #if EV_MULTIPLICITY |
2531 | #if EV_MULTIPLICITY |
2382 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2532 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2383 | #endif |
2533 | #endif |
2384 | if (expect_false (ev_is_active (w))) |
2534 | if (expect_false (ev_is_active (w))) |
2385 | return; |
2535 | return; |
2386 | |
2536 | |
2387 | EV_FREQUENT_CHECK; |
2537 | EV_FREQUENT_CHECK; |
… | |
… | |
2412 | # ifdef _WIN32 |
2562 | # ifdef _WIN32 |
2413 | # undef lstat |
2563 | # undef lstat |
2414 | # define lstat(a,b) _stati64 (a,b) |
2564 | # define lstat(a,b) _stati64 (a,b) |
2415 | # endif |
2565 | # endif |
2416 | |
2566 | |
2417 | #define DEF_STAT_INTERVAL 5.0074891 |
2567 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
2568 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
2418 | #define MIN_STAT_INTERVAL 0.1074891 |
2569 | #define MIN_STAT_INTERVAL 0.1074891 |
2419 | |
2570 | |
2420 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2571 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2421 | |
2572 | |
2422 | #if EV_USE_INOTIFY |
2573 | #if EV_USE_INOTIFY |
2423 | # define EV_INOTIFY_BUFSIZE 8192 |
2574 | # define EV_INOTIFY_BUFSIZE 8192 |
… | |
… | |
2427 | { |
2578 | { |
2428 | 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); |
2579 | 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); |
2429 | |
2580 | |
2430 | if (w->wd < 0) |
2581 | if (w->wd < 0) |
2431 | { |
2582 | { |
|
|
2583 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2432 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2584 | ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2433 | |
2585 | |
2434 | /* monitor some parent directory for speedup hints */ |
2586 | /* monitor some parent directory for speedup hints */ |
2435 | /* note that exceeding the hardcoded limit is not a correctness issue, */ |
2587 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2436 | /* but an efficiency issue only */ |
2588 | /* but an efficiency issue only */ |
2437 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2589 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2438 | { |
2590 | { |
2439 | char path [4096]; |
2591 | char path [4096]; |
2440 | strcpy (path, w->path); |
2592 | strcpy (path, w->path); |
… | |
… | |
2444 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2596 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2445 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2597 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2446 | |
2598 | |
2447 | char *pend = strrchr (path, '/'); |
2599 | char *pend = strrchr (path, '/'); |
2448 | |
2600 | |
2449 | if (!pend) |
2601 | if (!pend || pend == path) |
2450 | break; /* whoops, no '/', complain to your admin */ |
2602 | break; |
2451 | |
2603 | |
2452 | *pend = 0; |
2604 | *pend = 0; |
2453 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2605 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2454 | } |
2606 | } |
2455 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2607 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2456 | } |
2608 | } |
2457 | } |
2609 | } |
2458 | else |
|
|
2459 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
2460 | |
2610 | |
2461 | if (w->wd >= 0) |
2611 | if (w->wd >= 0) |
|
|
2612 | { |
2462 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2613 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
2614 | |
|
|
2615 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
2616 | /* unless the filesystem it known to be local, we therefore still poll */ |
|
|
2617 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2618 | struct statfs sfs; |
|
|
2619 | |
|
|
2620 | if (fs_2625 && !statfs (w->path, &sfs)) |
|
|
2621 | if (sfs.f_type == 0x1373 /* devfs */ |
|
|
2622 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2623 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2624 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2625 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2626 | || sfs.f_type == 0x58465342 /* xfs */) |
|
|
2627 | return; |
|
|
2628 | |
|
|
2629 | w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2630 | ev_timer_again (EV_A_ &w->timer); |
|
|
2631 | } |
2463 | } |
2632 | } |
2464 | |
2633 | |
2465 | static void noinline |
2634 | static void noinline |
2466 | infy_del (EV_P_ ev_stat *w) |
2635 | infy_del (EV_P_ ev_stat *w) |
2467 | { |
2636 | { |
… | |
… | |
2481 | |
2650 | |
2482 | static void noinline |
2651 | static void noinline |
2483 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2652 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2484 | { |
2653 | { |
2485 | if (slot < 0) |
2654 | if (slot < 0) |
2486 | /* overflow, need to check for all hahs slots */ |
2655 | /* overflow, need to check for all hash slots */ |
2487 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2656 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2488 | infy_wd (EV_A_ slot, wd, ev); |
2657 | infy_wd (EV_A_ slot, wd, ev); |
2489 | else |
2658 | else |
2490 | { |
2659 | { |
2491 | WL w_; |
2660 | WL w_; |
… | |
… | |
2497 | |
2666 | |
2498 | if (w->wd == wd || wd == -1) |
2667 | if (w->wd == wd || wd == -1) |
2499 | { |
2668 | { |
2500 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2669 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2501 | { |
2670 | { |
|
|
2671 | wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2502 | w->wd = -1; |
2672 | w->wd = -1; |
2503 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2673 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2504 | } |
2674 | } |
2505 | |
2675 | |
2506 | stat_timer_cb (EV_A_ &w->timer, 0); |
2676 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2519 | |
2689 | |
2520 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
2690 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
2521 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
2691 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
2522 | } |
2692 | } |
2523 | |
2693 | |
2524 | void inline_size |
2694 | inline_size void |
|
|
2695 | check_2625 (EV_P) |
|
|
2696 | { |
|
|
2697 | /* kernels < 2.6.25 are borked |
|
|
2698 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
|
|
2699 | */ |
|
|
2700 | struct utsname buf; |
|
|
2701 | int major, minor, micro; |
|
|
2702 | |
|
|
2703 | if (uname (&buf)) |
|
|
2704 | return; |
|
|
2705 | |
|
|
2706 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
|
|
2707 | return; |
|
|
2708 | |
|
|
2709 | if (major < 2 |
|
|
2710 | || (major == 2 && minor < 6) |
|
|
2711 | || (major == 2 && minor == 6 && micro < 25)) |
|
|
2712 | return; |
|
|
2713 | |
|
|
2714 | fs_2625 = 1; |
|
|
2715 | } |
|
|
2716 | |
|
|
2717 | inline_size void |
2525 | infy_init (EV_P) |
2718 | infy_init (EV_P) |
2526 | { |
2719 | { |
2527 | if (fs_fd != -2) |
2720 | if (fs_fd != -2) |
2528 | return; |
2721 | return; |
|
|
2722 | |
|
|
2723 | fs_fd = -1; |
|
|
2724 | |
|
|
2725 | check_2625 (EV_A); |
2529 | |
2726 | |
2530 | fs_fd = inotify_init (); |
2727 | fs_fd = inotify_init (); |
2531 | |
2728 | |
2532 | if (fs_fd >= 0) |
2729 | if (fs_fd >= 0) |
2533 | { |
2730 | { |
… | |
… | |
2535 | ev_set_priority (&fs_w, EV_MAXPRI); |
2732 | ev_set_priority (&fs_w, EV_MAXPRI); |
2536 | ev_io_start (EV_A_ &fs_w); |
2733 | ev_io_start (EV_A_ &fs_w); |
2537 | } |
2734 | } |
2538 | } |
2735 | } |
2539 | |
2736 | |
2540 | void inline_size |
2737 | inline_size void |
2541 | infy_fork (EV_P) |
2738 | infy_fork (EV_P) |
2542 | { |
2739 | { |
2543 | int slot; |
2740 | int slot; |
2544 | |
2741 | |
2545 | if (fs_fd < 0) |
2742 | if (fs_fd < 0) |
… | |
… | |
2561 | w->wd = -1; |
2758 | w->wd = -1; |
2562 | |
2759 | |
2563 | if (fs_fd >= 0) |
2760 | if (fs_fd >= 0) |
2564 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2761 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2565 | else |
2762 | else |
2566 | ev_timer_start (EV_A_ &w->timer); |
2763 | ev_timer_again (EV_A_ &w->timer); |
2567 | } |
2764 | } |
2568 | |
|
|
2569 | } |
2765 | } |
2570 | } |
2766 | } |
2571 | |
2767 | |
|
|
2768 | #endif |
|
|
2769 | |
|
|
2770 | #ifdef _WIN32 |
|
|
2771 | # define EV_LSTAT(p,b) _stati64 (p, b) |
|
|
2772 | #else |
|
|
2773 | # define EV_LSTAT(p,b) lstat (p, b) |
2572 | #endif |
2774 | #endif |
2573 | |
2775 | |
2574 | void |
2776 | void |
2575 | ev_stat_stat (EV_P_ ev_stat *w) |
2777 | ev_stat_stat (EV_P_ ev_stat *w) |
2576 | { |
2778 | { |
… | |
… | |
2603 | || w->prev.st_atime != w->attr.st_atime |
2805 | || w->prev.st_atime != w->attr.st_atime |
2604 | || w->prev.st_mtime != w->attr.st_mtime |
2806 | || w->prev.st_mtime != w->attr.st_mtime |
2605 | || w->prev.st_ctime != w->attr.st_ctime |
2807 | || w->prev.st_ctime != w->attr.st_ctime |
2606 | ) { |
2808 | ) { |
2607 | #if EV_USE_INOTIFY |
2809 | #if EV_USE_INOTIFY |
|
|
2810 | if (fs_fd >= 0) |
|
|
2811 | { |
2608 | infy_del (EV_A_ w); |
2812 | infy_del (EV_A_ w); |
2609 | infy_add (EV_A_ w); |
2813 | infy_add (EV_A_ w); |
2610 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
2814 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
2815 | } |
2611 | #endif |
2816 | #endif |
2612 | |
2817 | |
2613 | ev_feed_event (EV_A_ w, EV_STAT); |
2818 | ev_feed_event (EV_A_ w, EV_STAT); |
2614 | } |
2819 | } |
2615 | } |
2820 | } |
… | |
… | |
2618 | ev_stat_start (EV_P_ ev_stat *w) |
2823 | ev_stat_start (EV_P_ ev_stat *w) |
2619 | { |
2824 | { |
2620 | if (expect_false (ev_is_active (w))) |
2825 | if (expect_false (ev_is_active (w))) |
2621 | return; |
2826 | return; |
2622 | |
2827 | |
2623 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2624 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2625 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2626 | |
|
|
2627 | ev_stat_stat (EV_A_ w); |
2828 | ev_stat_stat (EV_A_ w); |
2628 | |
2829 | |
|
|
2830 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
2629 | if (w->interval < MIN_STAT_INTERVAL) |
2831 | w->interval = MIN_STAT_INTERVAL; |
2630 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2631 | |
2832 | |
2632 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
2833 | ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL); |
2633 | ev_set_priority (&w->timer, ev_priority (w)); |
2834 | ev_set_priority (&w->timer, ev_priority (w)); |
2634 | |
2835 | |
2635 | #if EV_USE_INOTIFY |
2836 | #if EV_USE_INOTIFY |
2636 | infy_init (EV_A); |
2837 | infy_init (EV_A); |
2637 | |
2838 | |
2638 | if (fs_fd >= 0) |
2839 | if (fs_fd >= 0) |
2639 | infy_add (EV_A_ w); |
2840 | infy_add (EV_A_ w); |
2640 | else |
2841 | else |
2641 | #endif |
2842 | #endif |
2642 | ev_timer_start (EV_A_ &w->timer); |
2843 | ev_timer_again (EV_A_ &w->timer); |
2643 | |
2844 | |
2644 | ev_start (EV_A_ (W)w, 1); |
2845 | ev_start (EV_A_ (W)w, 1); |
2645 | |
2846 | |
2646 | EV_FREQUENT_CHECK; |
2847 | EV_FREQUENT_CHECK; |
2647 | } |
2848 | } |
… | |
… | |
2817 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3018 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
2818 | } |
3019 | } |
2819 | } |
3020 | } |
2820 | } |
3021 | } |
2821 | |
3022 | |
|
|
3023 | static void |
|
|
3024 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
|
|
3025 | { |
|
|
3026 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
|
|
3027 | |
|
|
3028 | ev_embed_stop (EV_A_ w); |
|
|
3029 | |
|
|
3030 | { |
|
|
3031 | struct ev_loop *loop = w->other; |
|
|
3032 | |
|
|
3033 | ev_loop_fork (EV_A); |
|
|
3034 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
3035 | } |
|
|
3036 | |
|
|
3037 | ev_embed_start (EV_A_ w); |
|
|
3038 | } |
|
|
3039 | |
2822 | #if 0 |
3040 | #if 0 |
2823 | static void |
3041 | static void |
2824 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
3042 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
2825 | { |
3043 | { |
2826 | ev_idle_stop (EV_A_ idle); |
3044 | ev_idle_stop (EV_A_ idle); |
… | |
… | |
2833 | if (expect_false (ev_is_active (w))) |
3051 | if (expect_false (ev_is_active (w))) |
2834 | return; |
3052 | return; |
2835 | |
3053 | |
2836 | { |
3054 | { |
2837 | struct ev_loop *loop = w->other; |
3055 | struct ev_loop *loop = w->other; |
2838 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3056 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2839 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3057 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2840 | } |
3058 | } |
2841 | |
3059 | |
2842 | EV_FREQUENT_CHECK; |
3060 | EV_FREQUENT_CHECK; |
2843 | |
3061 | |
… | |
… | |
2846 | |
3064 | |
2847 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
3065 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
2848 | ev_set_priority (&w->prepare, EV_MINPRI); |
3066 | ev_set_priority (&w->prepare, EV_MINPRI); |
2849 | ev_prepare_start (EV_A_ &w->prepare); |
3067 | ev_prepare_start (EV_A_ &w->prepare); |
2850 | |
3068 | |
|
|
3069 | ev_fork_init (&w->fork, embed_fork_cb); |
|
|
3070 | ev_fork_start (EV_A_ &w->fork); |
|
|
3071 | |
2851 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
3072 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
2852 | |
3073 | |
2853 | ev_start (EV_A_ (W)w, 1); |
3074 | ev_start (EV_A_ (W)w, 1); |
2854 | |
3075 | |
2855 | EV_FREQUENT_CHECK; |
3076 | EV_FREQUENT_CHECK; |
… | |
… | |
2862 | if (expect_false (!ev_is_active (w))) |
3083 | if (expect_false (!ev_is_active (w))) |
2863 | return; |
3084 | return; |
2864 | |
3085 | |
2865 | EV_FREQUENT_CHECK; |
3086 | EV_FREQUENT_CHECK; |
2866 | |
3087 | |
2867 | ev_io_stop (EV_A_ &w->io); |
3088 | ev_io_stop (EV_A_ &w->io); |
2868 | ev_prepare_stop (EV_A_ &w->prepare); |
3089 | ev_prepare_stop (EV_A_ &w->prepare); |
2869 | |
3090 | ev_fork_stop (EV_A_ &w->fork); |
2870 | ev_stop (EV_A_ (W)w); |
|
|
2871 | |
3091 | |
2872 | EV_FREQUENT_CHECK; |
3092 | EV_FREQUENT_CHECK; |
2873 | } |
3093 | } |
2874 | #endif |
3094 | #endif |
2875 | |
3095 | |
… | |
… | |
2972 | once_cb (EV_P_ struct ev_once *once, int revents) |
3192 | once_cb (EV_P_ struct ev_once *once, int revents) |
2973 | { |
3193 | { |
2974 | void (*cb)(int revents, void *arg) = once->cb; |
3194 | void (*cb)(int revents, void *arg) = once->cb; |
2975 | void *arg = once->arg; |
3195 | void *arg = once->arg; |
2976 | |
3196 | |
2977 | ev_io_stop (EV_A_ &once->io); |
3197 | ev_io_stop (EV_A_ &once->io); |
2978 | ev_timer_stop (EV_A_ &once->to); |
3198 | ev_timer_stop (EV_A_ &once->to); |
2979 | ev_free (once); |
3199 | ev_free (once); |
2980 | |
3200 | |
2981 | cb (revents, arg); |
3201 | cb (revents, arg); |
2982 | } |
3202 | } |
2983 | |
3203 | |
2984 | static void |
3204 | static void |
2985 | once_cb_io (EV_P_ ev_io *w, int revents) |
3205 | once_cb_io (EV_P_ ev_io *w, int revents) |
2986 | { |
3206 | { |
2987 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
3207 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)); |
|
|
3208 | |
|
|
3209 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to)); |
2988 | } |
3210 | } |
2989 | |
3211 | |
2990 | static void |
3212 | static void |
2991 | once_cb_to (EV_P_ ev_timer *w, int revents) |
3213 | once_cb_to (EV_P_ ev_timer *w, int revents) |
2992 | { |
3214 | { |
2993 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
3215 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)); |
|
|
3216 | |
|
|
3217 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
2994 | } |
3218 | } |
2995 | |
3219 | |
2996 | void |
3220 | void |
2997 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
3221 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
2998 | { |
3222 | { |
… | |
… | |
3020 | ev_timer_set (&once->to, timeout, 0.); |
3244 | ev_timer_set (&once->to, timeout, 0.); |
3021 | ev_timer_start (EV_A_ &once->to); |
3245 | ev_timer_start (EV_A_ &once->to); |
3022 | } |
3246 | } |
3023 | } |
3247 | } |
3024 | |
3248 | |
|
|
3249 | /*****************************************************************************/ |
|
|
3250 | |
|
|
3251 | #if EV_WALK_ENABLE |
|
|
3252 | void |
|
|
3253 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
|
|
3254 | { |
|
|
3255 | int i, j; |
|
|
3256 | ev_watcher_list *wl, *wn; |
|
|
3257 | |
|
|
3258 | if (types & (EV_IO | EV_EMBED)) |
|
|
3259 | for (i = 0; i < anfdmax; ++i) |
|
|
3260 | for (wl = anfds [i].head; wl; ) |
|
|
3261 | { |
|
|
3262 | wn = wl->next; |
|
|
3263 | |
|
|
3264 | #if EV_EMBED_ENABLE |
|
|
3265 | if (ev_cb ((ev_io *)wl) == embed_io_cb) |
|
|
3266 | { |
|
|
3267 | if (types & EV_EMBED) |
|
|
3268 | cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io)); |
|
|
3269 | } |
|
|
3270 | else |
|
|
3271 | #endif |
|
|
3272 | #if EV_USE_INOTIFY |
|
|
3273 | if (ev_cb ((ev_io *)wl) == infy_cb) |
|
|
3274 | ; |
|
|
3275 | else |
|
|
3276 | #endif |
|
|
3277 | if ((ev_io *)wl != &pipe_w) |
|
|
3278 | if (types & EV_IO) |
|
|
3279 | cb (EV_A_ EV_IO, wl); |
|
|
3280 | |
|
|
3281 | wl = wn; |
|
|
3282 | } |
|
|
3283 | |
|
|
3284 | if (types & (EV_TIMER | EV_STAT)) |
|
|
3285 | for (i = timercnt + HEAP0; i-- > HEAP0; ) |
|
|
3286 | #if EV_STAT_ENABLE |
|
|
3287 | /*TODO: timer is not always active*/ |
|
|
3288 | if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb) |
|
|
3289 | { |
|
|
3290 | if (types & EV_STAT) |
|
|
3291 | cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer)); |
|
|
3292 | } |
|
|
3293 | else |
|
|
3294 | #endif |
|
|
3295 | if (types & EV_TIMER) |
|
|
3296 | cb (EV_A_ EV_TIMER, ANHE_w (timers [i])); |
|
|
3297 | |
|
|
3298 | #if EV_PERIODIC_ENABLE |
|
|
3299 | if (types & EV_PERIODIC) |
|
|
3300 | for (i = periodiccnt + HEAP0; i-- > HEAP0; ) |
|
|
3301 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
|
|
3302 | #endif |
|
|
3303 | |
|
|
3304 | #if EV_IDLE_ENABLE |
|
|
3305 | if (types & EV_IDLE) |
|
|
3306 | for (j = NUMPRI; i--; ) |
|
|
3307 | for (i = idlecnt [j]; i--; ) |
|
|
3308 | cb (EV_A_ EV_IDLE, idles [j][i]); |
|
|
3309 | #endif |
|
|
3310 | |
|
|
3311 | #if EV_FORK_ENABLE |
|
|
3312 | if (types & EV_FORK) |
|
|
3313 | for (i = forkcnt; i--; ) |
|
|
3314 | if (ev_cb (forks [i]) != embed_fork_cb) |
|
|
3315 | cb (EV_A_ EV_FORK, forks [i]); |
|
|
3316 | #endif |
|
|
3317 | |
|
|
3318 | #if EV_ASYNC_ENABLE |
|
|
3319 | if (types & EV_ASYNC) |
|
|
3320 | for (i = asynccnt; i--; ) |
|
|
3321 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
|
|
3322 | #endif |
|
|
3323 | |
|
|
3324 | if (types & EV_PREPARE) |
|
|
3325 | for (i = preparecnt; i--; ) |
|
|
3326 | #if EV_EMBED_ENABLE |
|
|
3327 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
|
|
3328 | #endif |
|
|
3329 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
3330 | |
|
|
3331 | if (types & EV_CHECK) |
|
|
3332 | for (i = checkcnt; i--; ) |
|
|
3333 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
3334 | |
|
|
3335 | if (types & EV_SIGNAL) |
|
|
3336 | for (i = 0; i < signalmax; ++i) |
|
|
3337 | for (wl = signals [i].head; wl; ) |
|
|
3338 | { |
|
|
3339 | wn = wl->next; |
|
|
3340 | cb (EV_A_ EV_SIGNAL, wl); |
|
|
3341 | wl = wn; |
|
|
3342 | } |
|
|
3343 | |
|
|
3344 | if (types & EV_CHILD) |
|
|
3345 | for (i = EV_PID_HASHSIZE; i--; ) |
|
|
3346 | for (wl = childs [i]; wl; ) |
|
|
3347 | { |
|
|
3348 | wn = wl->next; |
|
|
3349 | cb (EV_A_ EV_CHILD, wl); |
|
|
3350 | wl = wn; |
|
|
3351 | } |
|
|
3352 | /* EV_STAT 0x00001000 /* stat data changed */ |
|
|
3353 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
|
|
3354 | } |
|
|
3355 | #endif |
|
|
3356 | |
3025 | #if EV_MULTIPLICITY |
3357 | #if EV_MULTIPLICITY |
3026 | #include "ev_wrap.h" |
3358 | #include "ev_wrap.h" |
3027 | #endif |
3359 | #endif |
3028 | |
3360 | |
3029 | #ifdef __cplusplus |
3361 | #ifdef __cplusplus |