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 | |
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|
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 |
… | |
… | |
286 | # include <sys/select.h> |
306 | # include <sys/select.h> |
287 | # endif |
307 | # endif |
288 | #endif |
308 | #endif |
289 | |
309 | |
290 | #if EV_USE_INOTIFY |
310 | #if EV_USE_INOTIFY |
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|
311 | # include <sys/utsname.h> |
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|
312 | # include <sys/statfs.h> |
291 | # include <sys/inotify.h> |
313 | # include <sys/inotify.h> |
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|
314 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
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|
315 | # ifndef IN_DONT_FOLLOW |
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316 | # undef EV_USE_INOTIFY |
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317 | # define EV_USE_INOTIFY 0 |
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318 | # endif |
292 | #endif |
319 | #endif |
293 | |
320 | |
294 | #if EV_SELECT_IS_WINSOCKET |
321 | #if EV_SELECT_IS_WINSOCKET |
295 | # 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 |
296 | #endif |
332 | #endif |
297 | |
333 | |
298 | #if EV_USE_EVENTFD |
334 | #if EV_USE_EVENTFD |
299 | /* 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 */ |
300 | # include <stdint.h> |
336 | # include <stdint.h> |
… | |
… | |
361 | typedef ev_watcher_time *WT; |
397 | typedef ev_watcher_time *WT; |
362 | |
398 | |
363 | #define ev_active(w) ((W)(w))->active |
399 | #define ev_active(w) ((W)(w))->active |
364 | #define ev_at(w) ((WT)(w))->at |
400 | #define ev_at(w) ((WT)(w))->at |
365 | |
401 | |
366 | #if EV_USE_MONOTONIC |
402 | #if EV_USE_REALTIME |
367 | /* 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 */ |
368 | /* 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 |
369 | 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? */ |
370 | #endif |
410 | #endif |
371 | |
411 | |
372 | #ifdef _WIN32 |
412 | #ifdef _WIN32 |
373 | # include "ev_win32.c" |
413 | # include "ev_win32.c" |
… | |
… | |
382 | { |
422 | { |
383 | syserr_cb = cb; |
423 | syserr_cb = cb; |
384 | } |
424 | } |
385 | |
425 | |
386 | static void noinline |
426 | static void noinline |
387 | syserr (const char *msg) |
427 | ev_syserr (const char *msg) |
388 | { |
428 | { |
389 | if (!msg) |
429 | if (!msg) |
390 | msg = "(libev) system error"; |
430 | msg = "(libev) system error"; |
391 | |
431 | |
392 | if (syserr_cb) |
432 | if (syserr_cb) |
… | |
… | |
438 | #define ev_malloc(size) ev_realloc (0, (size)) |
478 | #define ev_malloc(size) ev_realloc (0, (size)) |
439 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
479 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
440 | |
480 | |
441 | /*****************************************************************************/ |
481 | /*****************************************************************************/ |
442 | |
482 | |
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|
483 | /* file descriptor info structure */ |
443 | typedef struct |
484 | typedef struct |
444 | { |
485 | { |
445 | WL head; |
486 | WL head; |
446 | unsigned char events; |
487 | unsigned char events; /* the events watched for */ |
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|
488 | unsigned char reify; /* flag set when this ANFD needs reification */ |
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489 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
447 | unsigned char reify; |
490 | unsigned char unused; |
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491 | #if EV_USE_EPOLL |
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492 | unsigned int egen; /* generation counter to counter epoll bugs */ |
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493 | #endif |
448 | #if EV_SELECT_IS_WINSOCKET |
494 | #if EV_SELECT_IS_WINSOCKET |
449 | SOCKET handle; |
495 | SOCKET handle; |
450 | #endif |
496 | #endif |
451 | } ANFD; |
497 | } ANFD; |
452 | |
498 | |
|
|
499 | /* stores the pending event set for a given watcher */ |
453 | typedef struct |
500 | typedef struct |
454 | { |
501 | { |
455 | W w; |
502 | W w; |
456 | int events; |
503 | int events; /* the pending event set for the given watcher */ |
457 | } ANPENDING; |
504 | } ANPENDING; |
458 | |
505 | |
459 | #if EV_USE_INOTIFY |
506 | #if EV_USE_INOTIFY |
460 | /* hash table entry per inotify-id */ |
507 | /* hash table entry per inotify-id */ |
461 | typedef struct |
508 | typedef struct |
… | |
… | |
464 | } ANFS; |
511 | } ANFS; |
465 | #endif |
512 | #endif |
466 | |
513 | |
467 | /* Heap Entry */ |
514 | /* Heap Entry */ |
468 | #if EV_HEAP_CACHE_AT |
515 | #if EV_HEAP_CACHE_AT |
|
|
516 | /* a heap element */ |
469 | typedef struct { |
517 | typedef struct { |
470 | ev_tstamp at; |
518 | ev_tstamp at; |
471 | WT w; |
519 | WT w; |
472 | } ANHE; |
520 | } ANHE; |
473 | |
521 | |
474 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
522 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
475 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
523 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
476 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
524 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
477 | #else |
525 | #else |
|
|
526 | /* a heap element */ |
478 | typedef WT ANHE; |
527 | typedef WT ANHE; |
479 | |
528 | |
480 | #define ANHE_w(he) (he) |
529 | #define ANHE_w(he) (he) |
481 | #define ANHE_at(he) (he)->at |
530 | #define ANHE_at(he) (he)->at |
482 | #define ANHE_at_cache(he) |
531 | #define ANHE_at_cache(he) |
… | |
… | |
512 | |
561 | |
513 | ev_tstamp |
562 | ev_tstamp |
514 | ev_time (void) |
563 | ev_time (void) |
515 | { |
564 | { |
516 | #if EV_USE_REALTIME |
565 | #if EV_USE_REALTIME |
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566 | if (expect_true (have_realtime)) |
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567 | { |
517 | struct timespec ts; |
568 | struct timespec ts; |
518 | clock_gettime (CLOCK_REALTIME, &ts); |
569 | clock_gettime (CLOCK_REALTIME, &ts); |
519 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
570 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
520 | #else |
571 | } |
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|
572 | #endif |
|
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573 | |
521 | struct timeval tv; |
574 | struct timeval tv; |
522 | gettimeofday (&tv, 0); |
575 | gettimeofday (&tv, 0); |
523 | return tv.tv_sec + tv.tv_usec * 1e-6; |
576 | return tv.tv_sec + tv.tv_usec * 1e-6; |
524 | #endif |
|
|
525 | } |
577 | } |
526 | |
578 | |
527 | ev_tstamp inline_size |
579 | inline_size ev_tstamp |
528 | get_clock (void) |
580 | get_clock (void) |
529 | { |
581 | { |
530 | #if EV_USE_MONOTONIC |
582 | #if EV_USE_MONOTONIC |
531 | if (expect_true (have_monotonic)) |
583 | if (expect_true (have_monotonic)) |
532 | { |
584 | { |
… | |
… | |
577 | |
629 | |
578 | /*****************************************************************************/ |
630 | /*****************************************************************************/ |
579 | |
631 | |
580 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
632 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
581 | |
633 | |
582 | int inline_size |
634 | /* find a suitable new size for the given array, */ |
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|
635 | /* hopefully by rounding to a ncie-to-malloc size */ |
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|
636 | inline_size int |
583 | array_nextsize (int elem, int cur, int cnt) |
637 | array_nextsize (int elem, int cur, int cnt) |
584 | { |
638 | { |
585 | int ncur = cur + 1; |
639 | int ncur = cur + 1; |
586 | |
640 | |
587 | do |
641 | do |
… | |
… | |
604 | array_realloc (int elem, void *base, int *cur, int cnt) |
658 | array_realloc (int elem, void *base, int *cur, int cnt) |
605 | { |
659 | { |
606 | *cur = array_nextsize (elem, *cur, cnt); |
660 | *cur = array_nextsize (elem, *cur, cnt); |
607 | return ev_realloc (base, elem * *cur); |
661 | return ev_realloc (base, elem * *cur); |
608 | } |
662 | } |
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663 | |
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664 | #define array_init_zero(base,count) \ |
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|
665 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
609 | |
666 | |
610 | #define array_needsize(type,base,cur,cnt,init) \ |
667 | #define array_needsize(type,base,cur,cnt,init) \ |
611 | if (expect_false ((cnt) > (cur))) \ |
668 | if (expect_false ((cnt) > (cur))) \ |
612 | { \ |
669 | { \ |
613 | int ocur_ = (cur); \ |
670 | int ocur_ = (cur); \ |
… | |
… | |
625 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
682 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
626 | } |
683 | } |
627 | #endif |
684 | #endif |
628 | |
685 | |
629 | #define array_free(stem, idx) \ |
686 | #define array_free(stem, idx) \ |
630 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
687 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
631 | |
688 | |
632 | /*****************************************************************************/ |
689 | /*****************************************************************************/ |
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690 | |
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691 | /* dummy callback for pending events */ |
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692 | static void noinline |
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693 | pendingcb (EV_P_ ev_prepare *w, int revents) |
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694 | { |
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695 | } |
633 | |
696 | |
634 | void noinline |
697 | void noinline |
635 | ev_feed_event (EV_P_ void *w, int revents) |
698 | ev_feed_event (EV_P_ void *w, int revents) |
636 | { |
699 | { |
637 | W w_ = (W)w; |
700 | W w_ = (W)w; |
… | |
… | |
646 | pendings [pri][w_->pending - 1].w = w_; |
709 | pendings [pri][w_->pending - 1].w = w_; |
647 | pendings [pri][w_->pending - 1].events = revents; |
710 | pendings [pri][w_->pending - 1].events = revents; |
648 | } |
711 | } |
649 | } |
712 | } |
650 | |
713 | |
651 | void inline_speed |
714 | inline_speed void |
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715 | feed_reverse (EV_P_ W w) |
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716 | { |
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717 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
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718 | rfeeds [rfeedcnt++] = w; |
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719 | } |
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720 | |
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721 | inline_size void |
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722 | feed_reverse_done (EV_P_ int revents) |
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|
723 | { |
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|
724 | do |
|
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725 | ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents); |
|
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726 | while (rfeedcnt); |
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|
727 | } |
|
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728 | |
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729 | inline_speed void |
652 | queue_events (EV_P_ W *events, int eventcnt, int type) |
730 | queue_events (EV_P_ W *events, int eventcnt, int type) |
653 | { |
731 | { |
654 | int i; |
732 | int i; |
655 | |
733 | |
656 | for (i = 0; i < eventcnt; ++i) |
734 | for (i = 0; i < eventcnt; ++i) |
657 | ev_feed_event (EV_A_ events [i], type); |
735 | ev_feed_event (EV_A_ events [i], type); |
658 | } |
736 | } |
659 | |
737 | |
660 | /*****************************************************************************/ |
738 | /*****************************************************************************/ |
661 | |
739 | |
662 | void inline_size |
740 | inline_speed void |
663 | anfds_init (ANFD *base, int count) |
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|
664 | { |
|
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665 | while (count--) |
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666 | { |
|
|
667 | base->head = 0; |
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|
668 | base->events = EV_NONE; |
|
|
669 | base->reify = 0; |
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670 | |
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|
671 | ++base; |
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672 | } |
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|
673 | } |
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674 | |
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675 | void inline_speed |
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|
676 | fd_event (EV_P_ int fd, int revents) |
741 | fd_event (EV_P_ int fd, int revents) |
677 | { |
742 | { |
678 | ANFD *anfd = anfds + fd; |
743 | ANFD *anfd = anfds + fd; |
679 | ev_io *w; |
744 | ev_io *w; |
680 | |
745 | |
… | |
… | |
692 | { |
757 | { |
693 | if (fd >= 0 && fd < anfdmax) |
758 | if (fd >= 0 && fd < anfdmax) |
694 | fd_event (EV_A_ fd, revents); |
759 | fd_event (EV_A_ fd, revents); |
695 | } |
760 | } |
696 | |
761 | |
697 | void inline_size |
762 | /* make sure the external fd watch events are in-sync */ |
|
|
763 | /* with the kernel/libev internal state */ |
|
|
764 | inline_size void |
698 | fd_reify (EV_P) |
765 | fd_reify (EV_P) |
699 | { |
766 | { |
700 | int i; |
767 | int i; |
701 | |
768 | |
702 | for (i = 0; i < fdchangecnt; ++i) |
769 | for (i = 0; i < fdchangecnt; ++i) |
… | |
… | |
717 | #ifdef EV_FD_TO_WIN32_HANDLE |
784 | #ifdef EV_FD_TO_WIN32_HANDLE |
718 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
785 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
719 | #else |
786 | #else |
720 | anfd->handle = _get_osfhandle (fd); |
787 | anfd->handle = _get_osfhandle (fd); |
721 | #endif |
788 | #endif |
722 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
789 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
723 | } |
790 | } |
724 | #endif |
791 | #endif |
725 | |
792 | |
726 | { |
793 | { |
727 | unsigned char o_events = anfd->events; |
794 | unsigned char o_events = anfd->events; |
728 | unsigned char o_reify = anfd->reify; |
795 | unsigned char o_reify = anfd->reify; |
729 | |
796 | |
730 | anfd->reify = 0; |
797 | anfd->reify = 0; |
731 | anfd->events = events; |
798 | anfd->events = events; |
732 | |
799 | |
733 | if (o_events != events || o_reify & EV_IOFDSET) |
800 | if (o_events != events || o_reify & EV__IOFDSET) |
734 | backend_modify (EV_A_ fd, o_events, events); |
801 | backend_modify (EV_A_ fd, o_events, events); |
735 | } |
802 | } |
736 | } |
803 | } |
737 | |
804 | |
738 | fdchangecnt = 0; |
805 | fdchangecnt = 0; |
739 | } |
806 | } |
740 | |
807 | |
741 | void inline_size |
808 | /* something about the given fd changed */ |
|
|
809 | inline_size void |
742 | fd_change (EV_P_ int fd, int flags) |
810 | fd_change (EV_P_ int fd, int flags) |
743 | { |
811 | { |
744 | unsigned char reify = anfds [fd].reify; |
812 | unsigned char reify = anfds [fd].reify; |
745 | anfds [fd].reify |= flags; |
813 | anfds [fd].reify |= flags; |
746 | |
814 | |
… | |
… | |
750 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
818 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
751 | fdchanges [fdchangecnt - 1] = fd; |
819 | fdchanges [fdchangecnt - 1] = fd; |
752 | } |
820 | } |
753 | } |
821 | } |
754 | |
822 | |
755 | void inline_speed |
823 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
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|
824 | inline_speed void |
756 | fd_kill (EV_P_ int fd) |
825 | fd_kill (EV_P_ int fd) |
757 | { |
826 | { |
758 | ev_io *w; |
827 | ev_io *w; |
759 | |
828 | |
760 | while ((w = (ev_io *)anfds [fd].head)) |
829 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
762 | ev_io_stop (EV_A_ w); |
831 | ev_io_stop (EV_A_ w); |
763 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
832 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
764 | } |
833 | } |
765 | } |
834 | } |
766 | |
835 | |
767 | int inline_size |
836 | /* check whether the given fd is atcually valid, for error recovery */ |
|
|
837 | inline_size int |
768 | fd_valid (int fd) |
838 | fd_valid (int fd) |
769 | { |
839 | { |
770 | #ifdef _WIN32 |
840 | #ifdef _WIN32 |
771 | return _get_osfhandle (fd) != -1; |
841 | return _get_osfhandle (fd) != -1; |
772 | #else |
842 | #else |
… | |
… | |
808 | |
878 | |
809 | for (fd = 0; fd < anfdmax; ++fd) |
879 | for (fd = 0; fd < anfdmax; ++fd) |
810 | if (anfds [fd].events) |
880 | if (anfds [fd].events) |
811 | { |
881 | { |
812 | anfds [fd].events = 0; |
882 | anfds [fd].events = 0; |
|
|
883 | anfds [fd].emask = 0; |
813 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
884 | fd_change (EV_A_ fd, EV__IOFDSET | 1); |
814 | } |
885 | } |
815 | } |
886 | } |
816 | |
887 | |
817 | /*****************************************************************************/ |
888 | /*****************************************************************************/ |
818 | |
889 | |
… | |
… | |
834 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
905 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
835 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
906 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
836 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
907 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
837 | |
908 | |
838 | /* away from the root */ |
909 | /* away from the root */ |
839 | void inline_speed |
910 | inline_speed void |
840 | downheap (ANHE *heap, int N, int k) |
911 | downheap (ANHE *heap, int N, int k) |
841 | { |
912 | { |
842 | ANHE he = heap [k]; |
913 | ANHE he = heap [k]; |
843 | ANHE *E = heap + N + HEAP0; |
914 | ANHE *E = heap + N + HEAP0; |
844 | |
915 | |
… | |
… | |
884 | #define HEAP0 1 |
955 | #define HEAP0 1 |
885 | #define HPARENT(k) ((k) >> 1) |
956 | #define HPARENT(k) ((k) >> 1) |
886 | #define UPHEAP_DONE(p,k) (!(p)) |
957 | #define UPHEAP_DONE(p,k) (!(p)) |
887 | |
958 | |
888 | /* away from the root */ |
959 | /* away from the root */ |
889 | void inline_speed |
960 | inline_speed void |
890 | downheap (ANHE *heap, int N, int k) |
961 | downheap (ANHE *heap, int N, int k) |
891 | { |
962 | { |
892 | ANHE he = heap [k]; |
963 | ANHE he = heap [k]; |
893 | |
964 | |
894 | for (;;) |
965 | for (;;) |
… | |
… | |
914 | ev_active (ANHE_w (he)) = k; |
985 | ev_active (ANHE_w (he)) = k; |
915 | } |
986 | } |
916 | #endif |
987 | #endif |
917 | |
988 | |
918 | /* towards the root */ |
989 | /* towards the root */ |
919 | void inline_speed |
990 | inline_speed void |
920 | upheap (ANHE *heap, int k) |
991 | upheap (ANHE *heap, int k) |
921 | { |
992 | { |
922 | ANHE he = heap [k]; |
993 | ANHE he = heap [k]; |
923 | |
994 | |
924 | for (;;) |
995 | for (;;) |
… | |
… | |
935 | |
1006 | |
936 | heap [k] = he; |
1007 | heap [k] = he; |
937 | ev_active (ANHE_w (he)) = k; |
1008 | ev_active (ANHE_w (he)) = k; |
938 | } |
1009 | } |
939 | |
1010 | |
940 | void inline_size |
1011 | /* move an element suitably so it is in a correct place */ |
|
|
1012 | inline_size void |
941 | adjustheap (ANHE *heap, int N, int k) |
1013 | adjustheap (ANHE *heap, int N, int k) |
942 | { |
1014 | { |
943 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
1015 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
944 | upheap (heap, k); |
1016 | upheap (heap, k); |
945 | else |
1017 | else |
946 | downheap (heap, N, k); |
1018 | downheap (heap, N, k); |
947 | } |
1019 | } |
948 | |
1020 | |
949 | /* rebuild the heap: this function is used only once and executed rarely */ |
1021 | /* rebuild the heap: this function is used only once and executed rarely */ |
950 | void inline_size |
1022 | inline_size void |
951 | reheap (ANHE *heap, int N) |
1023 | reheap (ANHE *heap, int N) |
952 | { |
1024 | { |
953 | int i; |
1025 | int i; |
954 | |
1026 | |
955 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
1027 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
… | |
… | |
958 | upheap (heap, i + HEAP0); |
1030 | upheap (heap, i + HEAP0); |
959 | } |
1031 | } |
960 | |
1032 | |
961 | /*****************************************************************************/ |
1033 | /*****************************************************************************/ |
962 | |
1034 | |
|
|
1035 | /* associate signal watchers to a signal signal */ |
963 | typedef struct |
1036 | typedef struct |
964 | { |
1037 | { |
965 | WL head; |
1038 | WL head; |
966 | EV_ATOMIC_T gotsig; |
1039 | EV_ATOMIC_T gotsig; |
967 | } ANSIG; |
1040 | } ANSIG; |
… | |
… | |
969 | static ANSIG *signals; |
1042 | static ANSIG *signals; |
970 | static int signalmax; |
1043 | static int signalmax; |
971 | |
1044 | |
972 | static EV_ATOMIC_T gotsig; |
1045 | static EV_ATOMIC_T gotsig; |
973 | |
1046 | |
974 | void inline_size |
|
|
975 | signals_init (ANSIG *base, int count) |
|
|
976 | { |
|
|
977 | while (count--) |
|
|
978 | { |
|
|
979 | base->head = 0; |
|
|
980 | base->gotsig = 0; |
|
|
981 | |
|
|
982 | ++base; |
|
|
983 | } |
|
|
984 | } |
|
|
985 | |
|
|
986 | /*****************************************************************************/ |
1047 | /*****************************************************************************/ |
987 | |
1048 | |
988 | void inline_speed |
1049 | /* used to prepare libev internal fd's */ |
|
|
1050 | /* this is not fork-safe */ |
|
|
1051 | inline_speed void |
989 | fd_intern (int fd) |
1052 | fd_intern (int fd) |
990 | { |
1053 | { |
991 | #ifdef _WIN32 |
1054 | #ifdef _WIN32 |
992 | unsigned long arg = 1; |
1055 | unsigned long arg = 1; |
993 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
1056 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
… | |
… | |
998 | } |
1061 | } |
999 | |
1062 | |
1000 | static void noinline |
1063 | static void noinline |
1001 | evpipe_init (EV_P) |
1064 | evpipe_init (EV_P) |
1002 | { |
1065 | { |
1003 | if (!ev_is_active (&pipeev)) |
1066 | if (!ev_is_active (&pipe_w)) |
1004 | { |
1067 | { |
1005 | #if EV_USE_EVENTFD |
1068 | #if EV_USE_EVENTFD |
1006 | if ((evfd = eventfd (0, 0)) >= 0) |
1069 | if ((evfd = eventfd (0, 0)) >= 0) |
1007 | { |
1070 | { |
1008 | evpipe [0] = -1; |
1071 | evpipe [0] = -1; |
1009 | fd_intern (evfd); |
1072 | fd_intern (evfd); |
1010 | ev_io_set (&pipeev, evfd, EV_READ); |
1073 | ev_io_set (&pipe_w, evfd, EV_READ); |
1011 | } |
1074 | } |
1012 | else |
1075 | else |
1013 | #endif |
1076 | #endif |
1014 | { |
1077 | { |
1015 | while (pipe (evpipe)) |
1078 | while (pipe (evpipe)) |
1016 | syserr ("(libev) error creating signal/async pipe"); |
1079 | ev_syserr ("(libev) error creating signal/async pipe"); |
1017 | |
1080 | |
1018 | fd_intern (evpipe [0]); |
1081 | fd_intern (evpipe [0]); |
1019 | fd_intern (evpipe [1]); |
1082 | fd_intern (evpipe [1]); |
1020 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
1083 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
1021 | } |
1084 | } |
1022 | |
1085 | |
1023 | ev_io_start (EV_A_ &pipeev); |
1086 | ev_io_start (EV_A_ &pipe_w); |
1024 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1087 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1025 | } |
1088 | } |
1026 | } |
1089 | } |
1027 | |
1090 | |
1028 | void inline_size |
1091 | inline_size void |
1029 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1092 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1030 | { |
1093 | { |
1031 | if (!*flag) |
1094 | if (!*flag) |
1032 | { |
1095 | { |
1033 | int old_errno = errno; /* save errno because write might clobber it */ |
1096 | int old_errno = errno; /* save errno because write might clobber it */ |
… | |
… | |
1046 | |
1109 | |
1047 | errno = old_errno; |
1110 | errno = old_errno; |
1048 | } |
1111 | } |
1049 | } |
1112 | } |
1050 | |
1113 | |
|
|
1114 | /* called whenever the libev signal pipe */ |
|
|
1115 | /* got some events (signal, async) */ |
1051 | static void |
1116 | static void |
1052 | pipecb (EV_P_ ev_io *iow, int revents) |
1117 | pipecb (EV_P_ ev_io *iow, int revents) |
1053 | { |
1118 | { |
1054 | #if EV_USE_EVENTFD |
1119 | #if EV_USE_EVENTFD |
1055 | if (evfd >= 0) |
1120 | if (evfd >= 0) |
… | |
… | |
1111 | ev_feed_signal_event (EV_P_ int signum) |
1176 | ev_feed_signal_event (EV_P_ int signum) |
1112 | { |
1177 | { |
1113 | WL w; |
1178 | WL w; |
1114 | |
1179 | |
1115 | #if EV_MULTIPLICITY |
1180 | #if EV_MULTIPLICITY |
1116 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1181 | assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1117 | #endif |
1182 | #endif |
1118 | |
1183 | |
1119 | --signum; |
1184 | --signum; |
1120 | |
1185 | |
1121 | if (signum < 0 || signum >= signalmax) |
1186 | if (signum < 0 || signum >= signalmax) |
… | |
… | |
1137 | |
1202 | |
1138 | #ifndef WIFCONTINUED |
1203 | #ifndef WIFCONTINUED |
1139 | # define WIFCONTINUED(status) 0 |
1204 | # define WIFCONTINUED(status) 0 |
1140 | #endif |
1205 | #endif |
1141 | |
1206 | |
1142 | void inline_speed |
1207 | /* handle a single child status event */ |
|
|
1208 | inline_speed void |
1143 | child_reap (EV_P_ int chain, int pid, int status) |
1209 | child_reap (EV_P_ int chain, int pid, int status) |
1144 | { |
1210 | { |
1145 | ev_child *w; |
1211 | ev_child *w; |
1146 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1212 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1147 | |
1213 | |
… | |
… | |
1160 | |
1226 | |
1161 | #ifndef WCONTINUED |
1227 | #ifndef WCONTINUED |
1162 | # define WCONTINUED 0 |
1228 | # define WCONTINUED 0 |
1163 | #endif |
1229 | #endif |
1164 | |
1230 | |
|
|
1231 | /* called on sigchld etc., calls waitpid */ |
1165 | static void |
1232 | static void |
1166 | childcb (EV_P_ ev_signal *sw, int revents) |
1233 | childcb (EV_P_ ev_signal *sw, int revents) |
1167 | { |
1234 | { |
1168 | int pid, status; |
1235 | int pid, status; |
1169 | |
1236 | |
… | |
… | |
1250 | /* kqueue is borked on everything but netbsd apparently */ |
1317 | /* kqueue is borked on everything but netbsd apparently */ |
1251 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1318 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1252 | flags &= ~EVBACKEND_KQUEUE; |
1319 | flags &= ~EVBACKEND_KQUEUE; |
1253 | #endif |
1320 | #endif |
1254 | #ifdef __APPLE__ |
1321 | #ifdef __APPLE__ |
1255 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
1322 | /* only select works correctly on that "unix-certified" platform */ |
1256 | flags &= ~EVBACKEND_POLL; |
1323 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
|
|
1324 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
1257 | #endif |
1325 | #endif |
1258 | |
1326 | |
1259 | return flags; |
1327 | return flags; |
1260 | } |
1328 | } |
1261 | |
1329 | |
… | |
… | |
1293 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1361 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1294 | { |
1362 | { |
1295 | timeout_blocktime = interval; |
1363 | timeout_blocktime = interval; |
1296 | } |
1364 | } |
1297 | |
1365 | |
|
|
1366 | /* initialise a loop structure, must be zero-initialised */ |
1298 | static void noinline |
1367 | static void noinline |
1299 | loop_init (EV_P_ unsigned int flags) |
1368 | loop_init (EV_P_ unsigned int flags) |
1300 | { |
1369 | { |
1301 | if (!backend) |
1370 | if (!backend) |
1302 | { |
1371 | { |
|
|
1372 | #if EV_USE_REALTIME |
|
|
1373 | if (!have_realtime) |
|
|
1374 | { |
|
|
1375 | struct timespec ts; |
|
|
1376 | |
|
|
1377 | if (!clock_gettime (CLOCK_REALTIME, &ts)) |
|
|
1378 | have_realtime = 1; |
|
|
1379 | } |
|
|
1380 | #endif |
|
|
1381 | |
1303 | #if EV_USE_MONOTONIC |
1382 | #if EV_USE_MONOTONIC |
|
|
1383 | if (!have_monotonic) |
1304 | { |
1384 | { |
1305 | struct timespec ts; |
1385 | struct timespec ts; |
|
|
1386 | |
1306 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1387 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1307 | have_monotonic = 1; |
1388 | have_monotonic = 1; |
1308 | } |
1389 | } |
1309 | #endif |
1390 | #endif |
1310 | |
1391 | |
1311 | ev_rt_now = ev_time (); |
1392 | ev_rt_now = ev_time (); |
1312 | mn_now = get_clock (); |
1393 | mn_now = get_clock (); |
1313 | now_floor = mn_now; |
1394 | now_floor = mn_now; |
… | |
… | |
1350 | #endif |
1431 | #endif |
1351 | #if EV_USE_SELECT |
1432 | #if EV_USE_SELECT |
1352 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1433 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1353 | #endif |
1434 | #endif |
1354 | |
1435 | |
|
|
1436 | ev_prepare_init (&pending_w, pendingcb); |
|
|
1437 | |
1355 | ev_init (&pipeev, pipecb); |
1438 | ev_init (&pipe_w, pipecb); |
1356 | ev_set_priority (&pipeev, EV_MAXPRI); |
1439 | ev_set_priority (&pipe_w, EV_MAXPRI); |
1357 | } |
1440 | } |
1358 | } |
1441 | } |
1359 | |
1442 | |
|
|
1443 | /* free up a loop structure */ |
1360 | static void noinline |
1444 | static void noinline |
1361 | loop_destroy (EV_P) |
1445 | loop_destroy (EV_P) |
1362 | { |
1446 | { |
1363 | int i; |
1447 | int i; |
1364 | |
1448 | |
1365 | if (ev_is_active (&pipeev)) |
1449 | if (ev_is_active (&pipe_w)) |
1366 | { |
1450 | { |
1367 | ev_ref (EV_A); /* signal watcher */ |
1451 | ev_ref (EV_A); /* signal watcher */ |
1368 | ev_io_stop (EV_A_ &pipeev); |
1452 | ev_io_stop (EV_A_ &pipe_w); |
1369 | |
1453 | |
1370 | #if EV_USE_EVENTFD |
1454 | #if EV_USE_EVENTFD |
1371 | if (evfd >= 0) |
1455 | if (evfd >= 0) |
1372 | close (evfd); |
1456 | close (evfd); |
1373 | #endif |
1457 | #endif |
… | |
… | |
1412 | } |
1496 | } |
1413 | |
1497 | |
1414 | ev_free (anfds); anfdmax = 0; |
1498 | ev_free (anfds); anfdmax = 0; |
1415 | |
1499 | |
1416 | /* have to use the microsoft-never-gets-it-right macro */ |
1500 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
1501 | array_free (rfeed, EMPTY); |
1417 | array_free (fdchange, EMPTY); |
1502 | array_free (fdchange, EMPTY); |
1418 | array_free (timer, EMPTY); |
1503 | array_free (timer, EMPTY); |
1419 | #if EV_PERIODIC_ENABLE |
1504 | #if EV_PERIODIC_ENABLE |
1420 | array_free (periodic, EMPTY); |
1505 | array_free (periodic, EMPTY); |
1421 | #endif |
1506 | #endif |
… | |
… | |
1430 | |
1515 | |
1431 | backend = 0; |
1516 | backend = 0; |
1432 | } |
1517 | } |
1433 | |
1518 | |
1434 | #if EV_USE_INOTIFY |
1519 | #if EV_USE_INOTIFY |
1435 | void inline_size infy_fork (EV_P); |
1520 | inline_size void infy_fork (EV_P); |
1436 | #endif |
1521 | #endif |
1437 | |
1522 | |
1438 | void inline_size |
1523 | inline_size void |
1439 | loop_fork (EV_P) |
1524 | loop_fork (EV_P) |
1440 | { |
1525 | { |
1441 | #if EV_USE_PORT |
1526 | #if EV_USE_PORT |
1442 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1527 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1443 | #endif |
1528 | #endif |
… | |
… | |
1449 | #endif |
1534 | #endif |
1450 | #if EV_USE_INOTIFY |
1535 | #if EV_USE_INOTIFY |
1451 | infy_fork (EV_A); |
1536 | infy_fork (EV_A); |
1452 | #endif |
1537 | #endif |
1453 | |
1538 | |
1454 | if (ev_is_active (&pipeev)) |
1539 | if (ev_is_active (&pipe_w)) |
1455 | { |
1540 | { |
1456 | /* this "locks" the handlers against writing to the pipe */ |
1541 | /* this "locks" the handlers against writing to the pipe */ |
1457 | /* while we modify the fd vars */ |
1542 | /* while we modify the fd vars */ |
1458 | gotsig = 1; |
1543 | gotsig = 1; |
1459 | #if EV_ASYNC_ENABLE |
1544 | #if EV_ASYNC_ENABLE |
1460 | gotasync = 1; |
1545 | gotasync = 1; |
1461 | #endif |
1546 | #endif |
1462 | |
1547 | |
1463 | ev_ref (EV_A); |
1548 | ev_ref (EV_A); |
1464 | ev_io_stop (EV_A_ &pipeev); |
1549 | ev_io_stop (EV_A_ &pipe_w); |
1465 | |
1550 | |
1466 | #if EV_USE_EVENTFD |
1551 | #if EV_USE_EVENTFD |
1467 | if (evfd >= 0) |
1552 | if (evfd >= 0) |
1468 | close (evfd); |
1553 | close (evfd); |
1469 | #endif |
1554 | #endif |
… | |
… | |
1474 | close (evpipe [1]); |
1559 | close (evpipe [1]); |
1475 | } |
1560 | } |
1476 | |
1561 | |
1477 | evpipe_init (EV_A); |
1562 | evpipe_init (EV_A); |
1478 | /* now iterate over everything, in case we missed something */ |
1563 | /* now iterate over everything, in case we missed something */ |
1479 | pipecb (EV_A_ &pipeev, EV_READ); |
1564 | pipecb (EV_A_ &pipe_w, EV_READ); |
1480 | } |
1565 | } |
1481 | |
1566 | |
1482 | postfork = 0; |
1567 | postfork = 0; |
1483 | } |
1568 | } |
1484 | |
1569 | |
… | |
… | |
1514 | |
1599 | |
1515 | #if EV_VERIFY |
1600 | #if EV_VERIFY |
1516 | static void noinline |
1601 | static void noinline |
1517 | verify_watcher (EV_P_ W w) |
1602 | verify_watcher (EV_P_ W w) |
1518 | { |
1603 | { |
1519 | assert (("watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
1604 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
1520 | |
1605 | |
1521 | if (w->pending) |
1606 | if (w->pending) |
1522 | assert (("pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
1607 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
1523 | } |
1608 | } |
1524 | |
1609 | |
1525 | static void noinline |
1610 | static void noinline |
1526 | verify_heap (EV_P_ ANHE *heap, int N) |
1611 | verify_heap (EV_P_ ANHE *heap, int N) |
1527 | { |
1612 | { |
1528 | int i; |
1613 | int i; |
1529 | |
1614 | |
1530 | for (i = HEAP0; i < N + HEAP0; ++i) |
1615 | for (i = HEAP0; i < N + HEAP0; ++i) |
1531 | { |
1616 | { |
1532 | assert (("active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
1617 | assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
1533 | assert (("heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
1618 | assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
1534 | assert (("heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
1619 | assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
1535 | |
1620 | |
1536 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
1621 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
1537 | } |
1622 | } |
1538 | } |
1623 | } |
1539 | |
1624 | |
1540 | static void noinline |
1625 | static void noinline |
1541 | array_verify (EV_P_ W *ws, int cnt) |
1626 | array_verify (EV_P_ W *ws, int cnt) |
1542 | { |
1627 | { |
1543 | while (cnt--) |
1628 | while (cnt--) |
1544 | { |
1629 | { |
1545 | assert (("active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
1630 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
1546 | verify_watcher (EV_A_ ws [cnt]); |
1631 | verify_watcher (EV_A_ ws [cnt]); |
1547 | } |
1632 | } |
1548 | } |
1633 | } |
1549 | #endif |
1634 | #endif |
1550 | |
1635 | |
… | |
… | |
1557 | |
1642 | |
1558 | assert (activecnt >= -1); |
1643 | assert (activecnt >= -1); |
1559 | |
1644 | |
1560 | assert (fdchangemax >= fdchangecnt); |
1645 | assert (fdchangemax >= fdchangecnt); |
1561 | for (i = 0; i < fdchangecnt; ++i) |
1646 | for (i = 0; i < fdchangecnt; ++i) |
1562 | assert (("negative fd in fdchanges", fdchanges [i] >= 0)); |
1647 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
1563 | |
1648 | |
1564 | assert (anfdmax >= 0); |
1649 | assert (anfdmax >= 0); |
1565 | for (i = 0; i < anfdmax; ++i) |
1650 | for (i = 0; i < anfdmax; ++i) |
1566 | for (w = anfds [i].head; w; w = w->next) |
1651 | for (w = anfds [i].head; w; w = w->next) |
1567 | { |
1652 | { |
1568 | verify_watcher (EV_A_ (W)w); |
1653 | verify_watcher (EV_A_ (W)w); |
1569 | assert (("inactive fd watcher on anfd list", ev_active (w) == 1)); |
1654 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
1570 | assert (("fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
1655 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
1571 | } |
1656 | } |
1572 | |
1657 | |
1573 | assert (timermax >= timercnt); |
1658 | assert (timermax >= timercnt); |
1574 | verify_heap (EV_A_ timers, timercnt); |
1659 | verify_heap (EV_A_ timers, timercnt); |
1575 | |
1660 | |
… | |
… | |
1652 | { |
1737 | { |
1653 | #if EV_MULTIPLICITY |
1738 | #if EV_MULTIPLICITY |
1654 | struct ev_loop *loop = ev_default_loop_ptr; |
1739 | struct ev_loop *loop = ev_default_loop_ptr; |
1655 | #endif |
1740 | #endif |
1656 | |
1741 | |
|
|
1742 | ev_default_loop_ptr = 0; |
|
|
1743 | |
1657 | #ifndef _WIN32 |
1744 | #ifndef _WIN32 |
1658 | ev_ref (EV_A); /* child watcher */ |
1745 | ev_ref (EV_A); /* child watcher */ |
1659 | ev_signal_stop (EV_A_ &childev); |
1746 | ev_signal_stop (EV_A_ &childev); |
1660 | #endif |
1747 | #endif |
1661 | |
1748 | |
… | |
… | |
1667 | { |
1754 | { |
1668 | #if EV_MULTIPLICITY |
1755 | #if EV_MULTIPLICITY |
1669 | struct ev_loop *loop = ev_default_loop_ptr; |
1756 | struct ev_loop *loop = ev_default_loop_ptr; |
1670 | #endif |
1757 | #endif |
1671 | |
1758 | |
1672 | if (backend) |
|
|
1673 | postfork = 1; /* must be in line with ev_loop_fork */ |
1759 | postfork = 1; /* must be in line with ev_loop_fork */ |
1674 | } |
1760 | } |
1675 | |
1761 | |
1676 | /*****************************************************************************/ |
1762 | /*****************************************************************************/ |
1677 | |
1763 | |
1678 | void |
1764 | void |
1679 | ev_invoke (EV_P_ void *w, int revents) |
1765 | ev_invoke (EV_P_ void *w, int revents) |
1680 | { |
1766 | { |
1681 | EV_CB_INVOKE ((W)w, revents); |
1767 | EV_CB_INVOKE ((W)w, revents); |
1682 | } |
1768 | } |
1683 | |
1769 | |
1684 | void inline_speed |
1770 | inline_speed void |
1685 | call_pending (EV_P) |
1771 | call_pending (EV_P) |
1686 | { |
1772 | { |
1687 | int pri; |
1773 | int pri; |
1688 | |
1774 | |
1689 | for (pri = NUMPRI; pri--; ) |
1775 | for (pri = NUMPRI; pri--; ) |
1690 | while (pendingcnt [pri]) |
1776 | while (pendingcnt [pri]) |
1691 | { |
1777 | { |
1692 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1778 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1693 | |
1779 | |
1694 | if (expect_true (p->w)) |
|
|
1695 | { |
|
|
1696 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
1780 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
|
|
1781 | /* ^ this is no longer true, as pending_w could be here */ |
1697 | |
1782 | |
1698 | p->w->pending = 0; |
1783 | p->w->pending = 0; |
1699 | EV_CB_INVOKE (p->w, p->events); |
1784 | EV_CB_INVOKE (p->w, p->events); |
1700 | EV_FREQUENT_CHECK; |
1785 | EV_FREQUENT_CHECK; |
1701 | } |
|
|
1702 | } |
1786 | } |
1703 | } |
1787 | } |
1704 | |
1788 | |
1705 | #if EV_IDLE_ENABLE |
1789 | #if EV_IDLE_ENABLE |
1706 | void inline_size |
1790 | /* make idle watchers pending. this handles the "call-idle */ |
|
|
1791 | /* only when higher priorities are idle" logic */ |
|
|
1792 | inline_size void |
1707 | idle_reify (EV_P) |
1793 | idle_reify (EV_P) |
1708 | { |
1794 | { |
1709 | if (expect_false (idleall)) |
1795 | if (expect_false (idleall)) |
1710 | { |
1796 | { |
1711 | int pri; |
1797 | int pri; |
… | |
… | |
1723 | } |
1809 | } |
1724 | } |
1810 | } |
1725 | } |
1811 | } |
1726 | #endif |
1812 | #endif |
1727 | |
1813 | |
1728 | void inline_size |
1814 | /* make timers pending */ |
|
|
1815 | inline_size void |
1729 | timers_reify (EV_P) |
1816 | timers_reify (EV_P) |
1730 | { |
1817 | { |
1731 | EV_FREQUENT_CHECK; |
1818 | EV_FREQUENT_CHECK; |
1732 | |
1819 | |
1733 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
1820 | if (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
1734 | { |
1821 | { |
1735 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
1822 | do |
1736 | |
|
|
1737 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1738 | |
|
|
1739 | /* first reschedule or stop timer */ |
|
|
1740 | if (w->repeat) |
|
|
1741 | { |
1823 | { |
|
|
1824 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
|
|
1825 | |
|
|
1826 | /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1827 | |
|
|
1828 | /* first reschedule or stop timer */ |
|
|
1829 | if (w->repeat) |
|
|
1830 | { |
1742 | ev_at (w) += w->repeat; |
1831 | ev_at (w) += w->repeat; |
1743 | if (ev_at (w) < mn_now) |
1832 | if (ev_at (w) < mn_now) |
1744 | ev_at (w) = mn_now; |
1833 | ev_at (w) = mn_now; |
1745 | |
1834 | |
1746 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1835 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1747 | |
1836 | |
1748 | ANHE_at_cache (timers [HEAP0]); |
1837 | ANHE_at_cache (timers [HEAP0]); |
1749 | downheap (timers, timercnt, HEAP0); |
1838 | downheap (timers, timercnt, HEAP0); |
|
|
1839 | } |
|
|
1840 | else |
|
|
1841 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1842 | |
|
|
1843 | EV_FREQUENT_CHECK; |
|
|
1844 | feed_reverse (EV_A_ (W)w); |
1750 | } |
1845 | } |
1751 | else |
1846 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
1752 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1753 | |
1847 | |
1754 | EV_FREQUENT_CHECK; |
|
|
1755 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
1848 | feed_reverse_done (EV_A_ EV_TIMEOUT); |
1756 | } |
1849 | } |
1757 | } |
1850 | } |
1758 | |
1851 | |
1759 | #if EV_PERIODIC_ENABLE |
1852 | #if EV_PERIODIC_ENABLE |
1760 | void inline_size |
1853 | /* make periodics pending */ |
|
|
1854 | inline_size void |
1761 | periodics_reify (EV_P) |
1855 | periodics_reify (EV_P) |
1762 | { |
1856 | { |
1763 | EV_FREQUENT_CHECK; |
1857 | EV_FREQUENT_CHECK; |
1764 | |
1858 | |
1765 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
1859 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
1766 | { |
1860 | { |
1767 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
1861 | int feed_count = 0; |
1768 | |
1862 | |
1769 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
1863 | do |
1770 | |
|
|
1771 | /* first reschedule or stop timer */ |
|
|
1772 | if (w->reschedule_cb) |
|
|
1773 | { |
1864 | { |
|
|
1865 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
|
|
1866 | |
|
|
1867 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
1868 | |
|
|
1869 | /* first reschedule or stop timer */ |
|
|
1870 | if (w->reschedule_cb) |
|
|
1871 | { |
1774 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1872 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1775 | |
1873 | |
1776 | assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
1874 | assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
1777 | |
1875 | |
1778 | ANHE_at_cache (periodics [HEAP0]); |
1876 | ANHE_at_cache (periodics [HEAP0]); |
1779 | downheap (periodics, periodiccnt, HEAP0); |
1877 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1878 | } |
|
|
1879 | else if (w->interval) |
|
|
1880 | { |
|
|
1881 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1882 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
1883 | /* this might happen because of floating point inexactness */ |
|
|
1884 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
1885 | { |
|
|
1886 | ev_at (w) += w->interval; |
|
|
1887 | |
|
|
1888 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
1889 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
1890 | /* has effectively asked to get triggered more often than possible */ |
|
|
1891 | if (ev_at (w) < ev_rt_now) |
|
|
1892 | ev_at (w) = ev_rt_now; |
|
|
1893 | } |
|
|
1894 | |
|
|
1895 | ANHE_at_cache (periodics [HEAP0]); |
|
|
1896 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1897 | } |
|
|
1898 | else |
|
|
1899 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1900 | |
|
|
1901 | EV_FREQUENT_CHECK; |
|
|
1902 | feed_reverse (EV_A_ (W)w); |
1780 | } |
1903 | } |
1781 | else if (w->interval) |
1904 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now); |
1782 | { |
|
|
1783 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1784 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
1785 | /* this might happen because of floating point inexactness */ |
|
|
1786 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
1787 | { |
|
|
1788 | ev_at (w) += w->interval; |
|
|
1789 | |
1905 | |
1790 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
1791 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
1792 | /* has effectively asked to get triggered more often than possible */ |
|
|
1793 | if (ev_at (w) < ev_rt_now) |
|
|
1794 | ev_at (w) = ev_rt_now; |
|
|
1795 | } |
|
|
1796 | |
|
|
1797 | ANHE_at_cache (periodics [HEAP0]); |
|
|
1798 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1799 | } |
|
|
1800 | else |
|
|
1801 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1802 | |
|
|
1803 | EV_FREQUENT_CHECK; |
|
|
1804 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
1906 | feed_reverse_done (EV_A_ EV_PERIODIC); |
1805 | } |
1907 | } |
1806 | } |
1908 | } |
1807 | |
1909 | |
|
|
1910 | /* simply recalculate all periodics */ |
|
|
1911 | /* TODO: maybe ensure that at leats one event happens when jumping forward? */ |
1808 | static void noinline |
1912 | static void noinline |
1809 | periodics_reschedule (EV_P) |
1913 | periodics_reschedule (EV_P) |
1810 | { |
1914 | { |
1811 | int i; |
1915 | int i; |
1812 | |
1916 | |
… | |
… | |
1825 | |
1929 | |
1826 | reheap (periodics, periodiccnt); |
1930 | reheap (periodics, periodiccnt); |
1827 | } |
1931 | } |
1828 | #endif |
1932 | #endif |
1829 | |
1933 | |
1830 | void inline_speed |
1934 | /* adjust all timers by a given offset */ |
|
|
1935 | static void noinline |
|
|
1936 | timers_reschedule (EV_P_ ev_tstamp adjust) |
|
|
1937 | { |
|
|
1938 | int i; |
|
|
1939 | |
|
|
1940 | for (i = 0; i < timercnt; ++i) |
|
|
1941 | { |
|
|
1942 | ANHE *he = timers + i + HEAP0; |
|
|
1943 | ANHE_w (*he)->at += adjust; |
|
|
1944 | ANHE_at_cache (*he); |
|
|
1945 | } |
|
|
1946 | } |
|
|
1947 | |
|
|
1948 | /* fetch new monotonic and realtime times from the kernel */ |
|
|
1949 | /* also detetc if there was a timejump, and act accordingly */ |
|
|
1950 | inline_speed void |
1831 | time_update (EV_P_ ev_tstamp max_block) |
1951 | time_update (EV_P_ ev_tstamp max_block) |
1832 | { |
1952 | { |
1833 | int i; |
1953 | int i; |
1834 | |
1954 | |
1835 | #if EV_USE_MONOTONIC |
1955 | #if EV_USE_MONOTONIC |
… | |
… | |
1868 | ev_rt_now = ev_time (); |
1988 | ev_rt_now = ev_time (); |
1869 | mn_now = get_clock (); |
1989 | mn_now = get_clock (); |
1870 | now_floor = mn_now; |
1990 | now_floor = mn_now; |
1871 | } |
1991 | } |
1872 | |
1992 | |
|
|
1993 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1994 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1873 | # if EV_PERIODIC_ENABLE |
1995 | # if EV_PERIODIC_ENABLE |
1874 | periodics_reschedule (EV_A); |
1996 | periodics_reschedule (EV_A); |
1875 | # endif |
1997 | # endif |
1876 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1877 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1878 | } |
1998 | } |
1879 | else |
1999 | else |
1880 | #endif |
2000 | #endif |
1881 | { |
2001 | { |
1882 | ev_rt_now = ev_time (); |
2002 | ev_rt_now = ev_time (); |
1883 | |
2003 | |
1884 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
2004 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
1885 | { |
2005 | { |
|
|
2006 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
2007 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
1886 | #if EV_PERIODIC_ENABLE |
2008 | #if EV_PERIODIC_ENABLE |
1887 | periodics_reschedule (EV_A); |
2009 | periodics_reschedule (EV_A); |
1888 | #endif |
2010 | #endif |
1889 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1890 | for (i = 0; i < timercnt; ++i) |
|
|
1891 | { |
|
|
1892 | ANHE *he = timers + i + HEAP0; |
|
|
1893 | ANHE_w (*he)->at += ev_rt_now - mn_now; |
|
|
1894 | ANHE_at_cache (*he); |
|
|
1895 | } |
|
|
1896 | } |
2011 | } |
1897 | |
2012 | |
1898 | mn_now = ev_rt_now; |
2013 | mn_now = ev_rt_now; |
1899 | } |
2014 | } |
1900 | } |
|
|
1901 | |
|
|
1902 | void |
|
|
1903 | ev_ref (EV_P) |
|
|
1904 | { |
|
|
1905 | ++activecnt; |
|
|
1906 | } |
|
|
1907 | |
|
|
1908 | void |
|
|
1909 | ev_unref (EV_P) |
|
|
1910 | { |
|
|
1911 | --activecnt; |
|
|
1912 | } |
|
|
1913 | |
|
|
1914 | void |
|
|
1915 | ev_now_update (EV_P) |
|
|
1916 | { |
|
|
1917 | time_update (EV_A_ 1e100); |
|
|
1918 | } |
2015 | } |
1919 | |
2016 | |
1920 | static int loop_done; |
2017 | static int loop_done; |
1921 | |
2018 | |
1922 | void |
2019 | void |
… | |
… | |
1956 | { |
2053 | { |
1957 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2054 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1958 | call_pending (EV_A); |
2055 | call_pending (EV_A); |
1959 | } |
2056 | } |
1960 | |
2057 | |
1961 | if (expect_false (!activecnt)) |
|
|
1962 | break; |
|
|
1963 | |
|
|
1964 | /* we might have forked, so reify kernel state if necessary */ |
2058 | /* we might have forked, so reify kernel state if necessary */ |
1965 | if (expect_false (postfork)) |
2059 | if (expect_false (postfork)) |
1966 | loop_fork (EV_A); |
2060 | loop_fork (EV_A); |
1967 | |
2061 | |
1968 | /* update fd-related kernel structures */ |
2062 | /* update fd-related kernel structures */ |
… | |
… | |
2047 | ev_unloop (EV_P_ int how) |
2141 | ev_unloop (EV_P_ int how) |
2048 | { |
2142 | { |
2049 | loop_done = how; |
2143 | loop_done = how; |
2050 | } |
2144 | } |
2051 | |
2145 | |
|
|
2146 | void |
|
|
2147 | ev_ref (EV_P) |
|
|
2148 | { |
|
|
2149 | ++activecnt; |
|
|
2150 | } |
|
|
2151 | |
|
|
2152 | void |
|
|
2153 | ev_unref (EV_P) |
|
|
2154 | { |
|
|
2155 | --activecnt; |
|
|
2156 | } |
|
|
2157 | |
|
|
2158 | void |
|
|
2159 | ev_now_update (EV_P) |
|
|
2160 | { |
|
|
2161 | time_update (EV_A_ 1e100); |
|
|
2162 | } |
|
|
2163 | |
|
|
2164 | void |
|
|
2165 | ev_suspend (EV_P) |
|
|
2166 | { |
|
|
2167 | ev_now_update (EV_A); |
|
|
2168 | } |
|
|
2169 | |
|
|
2170 | void |
|
|
2171 | ev_resume (EV_P) |
|
|
2172 | { |
|
|
2173 | ev_tstamp mn_prev = mn_now; |
|
|
2174 | |
|
|
2175 | ev_now_update (EV_A); |
|
|
2176 | timers_reschedule (EV_A_ mn_now - mn_prev); |
|
|
2177 | #if EV_PERIODIC_ENABLE |
|
|
2178 | /* TODO: really do this? */ |
|
|
2179 | periodics_reschedule (EV_A); |
|
|
2180 | #endif |
|
|
2181 | } |
|
|
2182 | |
2052 | /*****************************************************************************/ |
2183 | /*****************************************************************************/ |
|
|
2184 | /* singly-linked list management, used when the expected list length is short */ |
2053 | |
2185 | |
2054 | void inline_size |
2186 | inline_size void |
2055 | wlist_add (WL *head, WL elem) |
2187 | wlist_add (WL *head, WL elem) |
2056 | { |
2188 | { |
2057 | elem->next = *head; |
2189 | elem->next = *head; |
2058 | *head = elem; |
2190 | *head = elem; |
2059 | } |
2191 | } |
2060 | |
2192 | |
2061 | void inline_size |
2193 | inline_size void |
2062 | wlist_del (WL *head, WL elem) |
2194 | wlist_del (WL *head, WL elem) |
2063 | { |
2195 | { |
2064 | while (*head) |
2196 | while (*head) |
2065 | { |
2197 | { |
2066 | if (*head == elem) |
2198 | if (*head == elem) |
… | |
… | |
2071 | |
2203 | |
2072 | head = &(*head)->next; |
2204 | head = &(*head)->next; |
2073 | } |
2205 | } |
2074 | } |
2206 | } |
2075 | |
2207 | |
2076 | void inline_speed |
2208 | /* internal, faster, version of ev_clear_pending */ |
|
|
2209 | inline_speed void |
2077 | clear_pending (EV_P_ W w) |
2210 | clear_pending (EV_P_ W w) |
2078 | { |
2211 | { |
2079 | if (w->pending) |
2212 | if (w->pending) |
2080 | { |
2213 | { |
2081 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
2214 | pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w; |
2082 | w->pending = 0; |
2215 | w->pending = 0; |
2083 | } |
2216 | } |
2084 | } |
2217 | } |
2085 | |
2218 | |
2086 | int |
2219 | int |
… | |
… | |
2090 | int pending = w_->pending; |
2223 | int pending = w_->pending; |
2091 | |
2224 | |
2092 | if (expect_true (pending)) |
2225 | if (expect_true (pending)) |
2093 | { |
2226 | { |
2094 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
2227 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
2228 | p->w = (W)&pending_w; |
2095 | w_->pending = 0; |
2229 | w_->pending = 0; |
2096 | p->w = 0; |
|
|
2097 | return p->events; |
2230 | return p->events; |
2098 | } |
2231 | } |
2099 | else |
2232 | else |
2100 | return 0; |
2233 | return 0; |
2101 | } |
2234 | } |
2102 | |
2235 | |
2103 | void inline_size |
2236 | inline_size void |
2104 | pri_adjust (EV_P_ W w) |
2237 | pri_adjust (EV_P_ W w) |
2105 | { |
2238 | { |
2106 | int pri = w->priority; |
2239 | int pri = w->priority; |
2107 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2240 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2108 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2241 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2109 | w->priority = pri; |
2242 | w->priority = pri; |
2110 | } |
2243 | } |
2111 | |
2244 | |
2112 | void inline_speed |
2245 | inline_speed void |
2113 | ev_start (EV_P_ W w, int active) |
2246 | ev_start (EV_P_ W w, int active) |
2114 | { |
2247 | { |
2115 | pri_adjust (EV_A_ w); |
2248 | pri_adjust (EV_A_ w); |
2116 | w->active = active; |
2249 | w->active = active; |
2117 | ev_ref (EV_A); |
2250 | ev_ref (EV_A); |
2118 | } |
2251 | } |
2119 | |
2252 | |
2120 | void inline_size |
2253 | inline_size void |
2121 | ev_stop (EV_P_ W w) |
2254 | ev_stop (EV_P_ W w) |
2122 | { |
2255 | { |
2123 | ev_unref (EV_A); |
2256 | ev_unref (EV_A); |
2124 | w->active = 0; |
2257 | w->active = 0; |
2125 | } |
2258 | } |
… | |
… | |
2132 | int fd = w->fd; |
2265 | int fd = w->fd; |
2133 | |
2266 | |
2134 | if (expect_false (ev_is_active (w))) |
2267 | if (expect_false (ev_is_active (w))) |
2135 | return; |
2268 | return; |
2136 | |
2269 | |
2137 | assert (("ev_io_start called with negative fd", fd >= 0)); |
2270 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
|
|
2271 | assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2138 | |
2272 | |
2139 | EV_FREQUENT_CHECK; |
2273 | EV_FREQUENT_CHECK; |
2140 | |
2274 | |
2141 | ev_start (EV_A_ (W)w, 1); |
2275 | ev_start (EV_A_ (W)w, 1); |
2142 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
2276 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2143 | wlist_add (&anfds[fd].head, (WL)w); |
2277 | wlist_add (&anfds[fd].head, (WL)w); |
2144 | |
2278 | |
2145 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
2279 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | 1); |
2146 | w->events &= ~EV_IOFDSET; |
2280 | w->events &= ~EV__IOFDSET; |
2147 | |
2281 | |
2148 | EV_FREQUENT_CHECK; |
2282 | EV_FREQUENT_CHECK; |
2149 | } |
2283 | } |
2150 | |
2284 | |
2151 | void noinline |
2285 | void noinline |
… | |
… | |
2153 | { |
2287 | { |
2154 | clear_pending (EV_A_ (W)w); |
2288 | clear_pending (EV_A_ (W)w); |
2155 | if (expect_false (!ev_is_active (w))) |
2289 | if (expect_false (!ev_is_active (w))) |
2156 | return; |
2290 | return; |
2157 | |
2291 | |
2158 | assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2292 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2159 | |
2293 | |
2160 | EV_FREQUENT_CHECK; |
2294 | EV_FREQUENT_CHECK; |
2161 | |
2295 | |
2162 | wlist_del (&anfds[w->fd].head, (WL)w); |
2296 | wlist_del (&anfds[w->fd].head, (WL)w); |
2163 | ev_stop (EV_A_ (W)w); |
2297 | ev_stop (EV_A_ (W)w); |
… | |
… | |
2173 | if (expect_false (ev_is_active (w))) |
2307 | if (expect_false (ev_is_active (w))) |
2174 | return; |
2308 | return; |
2175 | |
2309 | |
2176 | ev_at (w) += mn_now; |
2310 | ev_at (w) += mn_now; |
2177 | |
2311 | |
2178 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2312 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2179 | |
2313 | |
2180 | EV_FREQUENT_CHECK; |
2314 | EV_FREQUENT_CHECK; |
2181 | |
2315 | |
2182 | ++timercnt; |
2316 | ++timercnt; |
2183 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
2317 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
… | |
… | |
2186 | ANHE_at_cache (timers [ev_active (w)]); |
2320 | ANHE_at_cache (timers [ev_active (w)]); |
2187 | upheap (timers, ev_active (w)); |
2321 | upheap (timers, ev_active (w)); |
2188 | |
2322 | |
2189 | EV_FREQUENT_CHECK; |
2323 | EV_FREQUENT_CHECK; |
2190 | |
2324 | |
2191 | /*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2325 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2192 | } |
2326 | } |
2193 | |
2327 | |
2194 | void noinline |
2328 | void noinline |
2195 | ev_timer_stop (EV_P_ ev_timer *w) |
2329 | ev_timer_stop (EV_P_ ev_timer *w) |
2196 | { |
2330 | { |
… | |
… | |
2201 | EV_FREQUENT_CHECK; |
2335 | EV_FREQUENT_CHECK; |
2202 | |
2336 | |
2203 | { |
2337 | { |
2204 | int active = ev_active (w); |
2338 | int active = ev_active (w); |
2205 | |
2339 | |
2206 | assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
2340 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
2207 | |
2341 | |
2208 | --timercnt; |
2342 | --timercnt; |
2209 | |
2343 | |
2210 | if (expect_true (active < timercnt + HEAP0)) |
2344 | if (expect_true (active < timercnt + HEAP0)) |
2211 | { |
2345 | { |
… | |
… | |
2255 | |
2389 | |
2256 | if (w->reschedule_cb) |
2390 | if (w->reschedule_cb) |
2257 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2391 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2258 | else if (w->interval) |
2392 | else if (w->interval) |
2259 | { |
2393 | { |
2260 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2394 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2261 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2395 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2262 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2396 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2263 | } |
2397 | } |
2264 | else |
2398 | else |
2265 | ev_at (w) = w->offset; |
2399 | ev_at (w) = w->offset; |
… | |
… | |
2273 | ANHE_at_cache (periodics [ev_active (w)]); |
2407 | ANHE_at_cache (periodics [ev_active (w)]); |
2274 | upheap (periodics, ev_active (w)); |
2408 | upheap (periodics, ev_active (w)); |
2275 | |
2409 | |
2276 | EV_FREQUENT_CHECK; |
2410 | EV_FREQUENT_CHECK; |
2277 | |
2411 | |
2278 | /*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2412 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2279 | } |
2413 | } |
2280 | |
2414 | |
2281 | void noinline |
2415 | void noinline |
2282 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2416 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2283 | { |
2417 | { |
… | |
… | |
2288 | EV_FREQUENT_CHECK; |
2422 | EV_FREQUENT_CHECK; |
2289 | |
2423 | |
2290 | { |
2424 | { |
2291 | int active = ev_active (w); |
2425 | int active = ev_active (w); |
2292 | |
2426 | |
2293 | assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
2427 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
2294 | |
2428 | |
2295 | --periodiccnt; |
2429 | --periodiccnt; |
2296 | |
2430 | |
2297 | if (expect_true (active < periodiccnt + HEAP0)) |
2431 | if (expect_true (active < periodiccnt + HEAP0)) |
2298 | { |
2432 | { |
… | |
… | |
2321 | |
2455 | |
2322 | void noinline |
2456 | void noinline |
2323 | ev_signal_start (EV_P_ ev_signal *w) |
2457 | ev_signal_start (EV_P_ ev_signal *w) |
2324 | { |
2458 | { |
2325 | #if EV_MULTIPLICITY |
2459 | #if EV_MULTIPLICITY |
2326 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2460 | assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2327 | #endif |
2461 | #endif |
2328 | if (expect_false (ev_is_active (w))) |
2462 | if (expect_false (ev_is_active (w))) |
2329 | return; |
2463 | return; |
2330 | |
2464 | |
2331 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2465 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); |
2332 | |
2466 | |
2333 | evpipe_init (EV_A); |
2467 | evpipe_init (EV_A); |
2334 | |
2468 | |
2335 | EV_FREQUENT_CHECK; |
2469 | EV_FREQUENT_CHECK; |
2336 | |
2470 | |
… | |
… | |
2339 | sigset_t full, prev; |
2473 | sigset_t full, prev; |
2340 | sigfillset (&full); |
2474 | sigfillset (&full); |
2341 | sigprocmask (SIG_SETMASK, &full, &prev); |
2475 | sigprocmask (SIG_SETMASK, &full, &prev); |
2342 | #endif |
2476 | #endif |
2343 | |
2477 | |
2344 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
2478 | array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); |
2345 | |
2479 | |
2346 | #ifndef _WIN32 |
2480 | #ifndef _WIN32 |
2347 | sigprocmask (SIG_SETMASK, &prev, 0); |
2481 | sigprocmask (SIG_SETMASK, &prev, 0); |
2348 | #endif |
2482 | #endif |
2349 | } |
2483 | } |
… | |
… | |
2387 | |
2521 | |
2388 | void |
2522 | void |
2389 | ev_child_start (EV_P_ ev_child *w) |
2523 | ev_child_start (EV_P_ ev_child *w) |
2390 | { |
2524 | { |
2391 | #if EV_MULTIPLICITY |
2525 | #if EV_MULTIPLICITY |
2392 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2526 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2393 | #endif |
2527 | #endif |
2394 | if (expect_false (ev_is_active (w))) |
2528 | if (expect_false (ev_is_active (w))) |
2395 | return; |
2529 | return; |
2396 | |
2530 | |
2397 | EV_FREQUENT_CHECK; |
2531 | EV_FREQUENT_CHECK; |
… | |
… | |
2422 | # ifdef _WIN32 |
2556 | # ifdef _WIN32 |
2423 | # undef lstat |
2557 | # undef lstat |
2424 | # define lstat(a,b) _stati64 (a,b) |
2558 | # define lstat(a,b) _stati64 (a,b) |
2425 | # endif |
2559 | # endif |
2426 | |
2560 | |
2427 | #define DEF_STAT_INTERVAL 5.0074891 |
2561 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
2562 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
2428 | #define MIN_STAT_INTERVAL 0.1074891 |
2563 | #define MIN_STAT_INTERVAL 0.1074891 |
2429 | |
2564 | |
2430 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2565 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2431 | |
2566 | |
2432 | #if EV_USE_INOTIFY |
2567 | #if EV_USE_INOTIFY |
2433 | # define EV_INOTIFY_BUFSIZE 8192 |
2568 | # define EV_INOTIFY_BUFSIZE 8192 |
… | |
… | |
2437 | { |
2572 | { |
2438 | 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); |
2573 | 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); |
2439 | |
2574 | |
2440 | if (w->wd < 0) |
2575 | if (w->wd < 0) |
2441 | { |
2576 | { |
|
|
2577 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2442 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2578 | ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2443 | |
2579 | |
2444 | /* monitor some parent directory for speedup hints */ |
2580 | /* monitor some parent directory for speedup hints */ |
2445 | /* note that exceeding the hardcoded limit is not a correctness issue, */ |
2581 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2446 | /* but an efficiency issue only */ |
2582 | /* but an efficiency issue only */ |
2447 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2583 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2448 | { |
2584 | { |
2449 | char path [4096]; |
2585 | char path [4096]; |
2450 | strcpy (path, w->path); |
2586 | strcpy (path, w->path); |
… | |
… | |
2454 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2590 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2455 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2591 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2456 | |
2592 | |
2457 | char *pend = strrchr (path, '/'); |
2593 | char *pend = strrchr (path, '/'); |
2458 | |
2594 | |
2459 | if (!pend) |
2595 | if (!pend || pend == path) |
2460 | break; /* whoops, no '/', complain to your admin */ |
2596 | break; |
2461 | |
2597 | |
2462 | *pend = 0; |
2598 | *pend = 0; |
2463 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2599 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2464 | } |
2600 | } |
2465 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2601 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2466 | } |
2602 | } |
2467 | } |
2603 | } |
2468 | else |
|
|
2469 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
2470 | |
2604 | |
2471 | if (w->wd >= 0) |
2605 | if (w->wd >= 0) |
|
|
2606 | { |
2472 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2607 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
2608 | |
|
|
2609 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
2610 | /* unless the filesystem it known to be local, we therefore still poll */ |
|
|
2611 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2612 | struct statfs sfs; |
|
|
2613 | |
|
|
2614 | if (fs_2625 && !statfs (w->path, &sfs)) |
|
|
2615 | if (sfs.f_type == 0x1373 /* devfs */ |
|
|
2616 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2617 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2618 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2619 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2620 | || sfs.f_type == 0x58465342 /* xfs */) |
|
|
2621 | return; |
|
|
2622 | |
|
|
2623 | w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2624 | ev_timer_again (EV_A_ &w->timer); |
|
|
2625 | } |
2473 | } |
2626 | } |
2474 | |
2627 | |
2475 | static void noinline |
2628 | static void noinline |
2476 | infy_del (EV_P_ ev_stat *w) |
2629 | infy_del (EV_P_ ev_stat *w) |
2477 | { |
2630 | { |
… | |
… | |
2491 | |
2644 | |
2492 | static void noinline |
2645 | static void noinline |
2493 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2646 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2494 | { |
2647 | { |
2495 | if (slot < 0) |
2648 | if (slot < 0) |
2496 | /* overflow, need to check for all hahs slots */ |
2649 | /* overflow, need to check for all hash slots */ |
2497 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2650 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2498 | infy_wd (EV_A_ slot, wd, ev); |
2651 | infy_wd (EV_A_ slot, wd, ev); |
2499 | else |
2652 | else |
2500 | { |
2653 | { |
2501 | WL w_; |
2654 | WL w_; |
… | |
… | |
2507 | |
2660 | |
2508 | if (w->wd == wd || wd == -1) |
2661 | if (w->wd == wd || wd == -1) |
2509 | { |
2662 | { |
2510 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2663 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2511 | { |
2664 | { |
|
|
2665 | wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2512 | w->wd = -1; |
2666 | w->wd = -1; |
2513 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2667 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2514 | } |
2668 | } |
2515 | |
2669 | |
2516 | stat_timer_cb (EV_A_ &w->timer, 0); |
2670 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2529 | |
2683 | |
2530 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
2684 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
2531 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
2685 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
2532 | } |
2686 | } |
2533 | |
2687 | |
2534 | void inline_size |
2688 | inline_size void |
|
|
2689 | check_2625 (EV_P) |
|
|
2690 | { |
|
|
2691 | /* kernels < 2.6.25 are borked |
|
|
2692 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
|
|
2693 | */ |
|
|
2694 | struct utsname buf; |
|
|
2695 | int major, minor, micro; |
|
|
2696 | |
|
|
2697 | if (uname (&buf)) |
|
|
2698 | return; |
|
|
2699 | |
|
|
2700 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
|
|
2701 | return; |
|
|
2702 | |
|
|
2703 | if (major < 2 |
|
|
2704 | || (major == 2 && minor < 6) |
|
|
2705 | || (major == 2 && minor == 6 && micro < 25)) |
|
|
2706 | return; |
|
|
2707 | |
|
|
2708 | fs_2625 = 1; |
|
|
2709 | } |
|
|
2710 | |
|
|
2711 | inline_size void |
2535 | infy_init (EV_P) |
2712 | infy_init (EV_P) |
2536 | { |
2713 | { |
2537 | if (fs_fd != -2) |
2714 | if (fs_fd != -2) |
2538 | return; |
2715 | return; |
|
|
2716 | |
|
|
2717 | fs_fd = -1; |
|
|
2718 | |
|
|
2719 | check_2625 (EV_A); |
2539 | |
2720 | |
2540 | fs_fd = inotify_init (); |
2721 | fs_fd = inotify_init (); |
2541 | |
2722 | |
2542 | if (fs_fd >= 0) |
2723 | if (fs_fd >= 0) |
2543 | { |
2724 | { |
… | |
… | |
2545 | ev_set_priority (&fs_w, EV_MAXPRI); |
2726 | ev_set_priority (&fs_w, EV_MAXPRI); |
2546 | ev_io_start (EV_A_ &fs_w); |
2727 | ev_io_start (EV_A_ &fs_w); |
2547 | } |
2728 | } |
2548 | } |
2729 | } |
2549 | |
2730 | |
2550 | void inline_size |
2731 | inline_size void |
2551 | infy_fork (EV_P) |
2732 | infy_fork (EV_P) |
2552 | { |
2733 | { |
2553 | int slot; |
2734 | int slot; |
2554 | |
2735 | |
2555 | if (fs_fd < 0) |
2736 | if (fs_fd < 0) |
… | |
… | |
2571 | w->wd = -1; |
2752 | w->wd = -1; |
2572 | |
2753 | |
2573 | if (fs_fd >= 0) |
2754 | if (fs_fd >= 0) |
2574 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2755 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2575 | else |
2756 | else |
2576 | ev_timer_start (EV_A_ &w->timer); |
2757 | ev_timer_again (EV_A_ &w->timer); |
2577 | } |
2758 | } |
2578 | |
|
|
2579 | } |
2759 | } |
2580 | } |
2760 | } |
2581 | |
2761 | |
2582 | #endif |
2762 | #endif |
2583 | |
2763 | |
… | |
… | |
2619 | || w->prev.st_atime != w->attr.st_atime |
2799 | || w->prev.st_atime != w->attr.st_atime |
2620 | || w->prev.st_mtime != w->attr.st_mtime |
2800 | || w->prev.st_mtime != w->attr.st_mtime |
2621 | || w->prev.st_ctime != w->attr.st_ctime |
2801 | || w->prev.st_ctime != w->attr.st_ctime |
2622 | ) { |
2802 | ) { |
2623 | #if EV_USE_INOTIFY |
2803 | #if EV_USE_INOTIFY |
|
|
2804 | if (fs_fd >= 0) |
|
|
2805 | { |
2624 | infy_del (EV_A_ w); |
2806 | infy_del (EV_A_ w); |
2625 | infy_add (EV_A_ w); |
2807 | infy_add (EV_A_ w); |
2626 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
2808 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
2809 | } |
2627 | #endif |
2810 | #endif |
2628 | |
2811 | |
2629 | ev_feed_event (EV_A_ w, EV_STAT); |
2812 | ev_feed_event (EV_A_ w, EV_STAT); |
2630 | } |
2813 | } |
2631 | } |
2814 | } |
… | |
… | |
2634 | ev_stat_start (EV_P_ ev_stat *w) |
2817 | ev_stat_start (EV_P_ ev_stat *w) |
2635 | { |
2818 | { |
2636 | if (expect_false (ev_is_active (w))) |
2819 | if (expect_false (ev_is_active (w))) |
2637 | return; |
2820 | return; |
2638 | |
2821 | |
2639 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2640 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2641 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2642 | |
|
|
2643 | ev_stat_stat (EV_A_ w); |
2822 | ev_stat_stat (EV_A_ w); |
2644 | |
2823 | |
|
|
2824 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
2645 | if (w->interval < MIN_STAT_INTERVAL) |
2825 | w->interval = MIN_STAT_INTERVAL; |
2646 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2647 | |
2826 | |
2648 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
2827 | ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL); |
2649 | ev_set_priority (&w->timer, ev_priority (w)); |
2828 | ev_set_priority (&w->timer, ev_priority (w)); |
2650 | |
2829 | |
2651 | #if EV_USE_INOTIFY |
2830 | #if EV_USE_INOTIFY |
2652 | infy_init (EV_A); |
2831 | infy_init (EV_A); |
2653 | |
2832 | |
2654 | if (fs_fd >= 0) |
2833 | if (fs_fd >= 0) |
2655 | infy_add (EV_A_ w); |
2834 | infy_add (EV_A_ w); |
2656 | else |
2835 | else |
2657 | #endif |
2836 | #endif |
2658 | ev_timer_start (EV_A_ &w->timer); |
2837 | ev_timer_again (EV_A_ &w->timer); |
2659 | |
2838 | |
2660 | ev_start (EV_A_ (W)w, 1); |
2839 | ev_start (EV_A_ (W)w, 1); |
2661 | |
2840 | |
2662 | EV_FREQUENT_CHECK; |
2841 | EV_FREQUENT_CHECK; |
2663 | } |
2842 | } |
… | |
… | |
2833 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3012 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
2834 | } |
3013 | } |
2835 | } |
3014 | } |
2836 | } |
3015 | } |
2837 | |
3016 | |
|
|
3017 | static void |
|
|
3018 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
|
|
3019 | { |
|
|
3020 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
|
|
3021 | |
|
|
3022 | ev_embed_stop (EV_A_ w); |
|
|
3023 | |
|
|
3024 | { |
|
|
3025 | struct ev_loop *loop = w->other; |
|
|
3026 | |
|
|
3027 | ev_loop_fork (EV_A); |
|
|
3028 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
3029 | } |
|
|
3030 | |
|
|
3031 | ev_embed_start (EV_A_ w); |
|
|
3032 | } |
|
|
3033 | |
2838 | #if 0 |
3034 | #if 0 |
2839 | static void |
3035 | static void |
2840 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
3036 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
2841 | { |
3037 | { |
2842 | ev_idle_stop (EV_A_ idle); |
3038 | ev_idle_stop (EV_A_ idle); |
… | |
… | |
2849 | if (expect_false (ev_is_active (w))) |
3045 | if (expect_false (ev_is_active (w))) |
2850 | return; |
3046 | return; |
2851 | |
3047 | |
2852 | { |
3048 | { |
2853 | struct ev_loop *loop = w->other; |
3049 | struct ev_loop *loop = w->other; |
2854 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3050 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2855 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3051 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2856 | } |
3052 | } |
2857 | |
3053 | |
2858 | EV_FREQUENT_CHECK; |
3054 | EV_FREQUENT_CHECK; |
2859 | |
3055 | |
… | |
… | |
2862 | |
3058 | |
2863 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
3059 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
2864 | ev_set_priority (&w->prepare, EV_MINPRI); |
3060 | ev_set_priority (&w->prepare, EV_MINPRI); |
2865 | ev_prepare_start (EV_A_ &w->prepare); |
3061 | ev_prepare_start (EV_A_ &w->prepare); |
2866 | |
3062 | |
|
|
3063 | ev_fork_init (&w->fork, embed_fork_cb); |
|
|
3064 | ev_fork_start (EV_A_ &w->fork); |
|
|
3065 | |
2867 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
3066 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
2868 | |
3067 | |
2869 | ev_start (EV_A_ (W)w, 1); |
3068 | ev_start (EV_A_ (W)w, 1); |
2870 | |
3069 | |
2871 | EV_FREQUENT_CHECK; |
3070 | EV_FREQUENT_CHECK; |
… | |
… | |
2878 | if (expect_false (!ev_is_active (w))) |
3077 | if (expect_false (!ev_is_active (w))) |
2879 | return; |
3078 | return; |
2880 | |
3079 | |
2881 | EV_FREQUENT_CHECK; |
3080 | EV_FREQUENT_CHECK; |
2882 | |
3081 | |
2883 | ev_io_stop (EV_A_ &w->io); |
3082 | ev_io_stop (EV_A_ &w->io); |
2884 | ev_prepare_stop (EV_A_ &w->prepare); |
3083 | ev_prepare_stop (EV_A_ &w->prepare); |
2885 | |
3084 | ev_fork_stop (EV_A_ &w->fork); |
2886 | ev_stop (EV_A_ (W)w); |
|
|
2887 | |
3085 | |
2888 | EV_FREQUENT_CHECK; |
3086 | EV_FREQUENT_CHECK; |
2889 | } |
3087 | } |
2890 | #endif |
3088 | #endif |
2891 | |
3089 | |
… | |
… | |
2998 | } |
3196 | } |
2999 | |
3197 | |
3000 | static void |
3198 | static void |
3001 | once_cb_io (EV_P_ ev_io *w, int revents) |
3199 | once_cb_io (EV_P_ ev_io *w, int revents) |
3002 | { |
3200 | { |
3003 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
3201 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)); |
|
|
3202 | |
|
|
3203 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to)); |
3004 | } |
3204 | } |
3005 | |
3205 | |
3006 | static void |
3206 | static void |
3007 | once_cb_to (EV_P_ ev_timer *w, int revents) |
3207 | once_cb_to (EV_P_ ev_timer *w, int revents) |
3008 | { |
3208 | { |
3009 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
3209 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)); |
|
|
3210 | |
|
|
3211 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
3010 | } |
3212 | } |
3011 | |
3213 | |
3012 | void |
3214 | void |
3013 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
3215 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
3014 | { |
3216 | { |
… | |
… | |
3036 | ev_timer_set (&once->to, timeout, 0.); |
3238 | ev_timer_set (&once->to, timeout, 0.); |
3037 | ev_timer_start (EV_A_ &once->to); |
3239 | ev_timer_start (EV_A_ &once->to); |
3038 | } |
3240 | } |
3039 | } |
3241 | } |
3040 | |
3242 | |
|
|
3243 | /*****************************************************************************/ |
|
|
3244 | |
|
|
3245 | #if EV_WALK_ENABLE |
|
|
3246 | void |
|
|
3247 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
|
|
3248 | { |
|
|
3249 | int i, j; |
|
|
3250 | ev_watcher_list *wl, *wn; |
|
|
3251 | |
|
|
3252 | if (types & (EV_IO | EV_EMBED)) |
|
|
3253 | for (i = 0; i < anfdmax; ++i) |
|
|
3254 | for (wl = anfds [i].head; wl; ) |
|
|
3255 | { |
|
|
3256 | wn = wl->next; |
|
|
3257 | |
|
|
3258 | #if EV_EMBED_ENABLE |
|
|
3259 | if (ev_cb ((ev_io *)wl) == embed_io_cb) |
|
|
3260 | { |
|
|
3261 | if (types & EV_EMBED) |
|
|
3262 | cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io)); |
|
|
3263 | } |
|
|
3264 | else |
|
|
3265 | #endif |
|
|
3266 | #if EV_USE_INOTIFY |
|
|
3267 | if (ev_cb ((ev_io *)wl) == infy_cb) |
|
|
3268 | ; |
|
|
3269 | else |
|
|
3270 | #endif |
|
|
3271 | if ((ev_io *)wl != &pipe_w) |
|
|
3272 | if (types & EV_IO) |
|
|
3273 | cb (EV_A_ EV_IO, wl); |
|
|
3274 | |
|
|
3275 | wl = wn; |
|
|
3276 | } |
|
|
3277 | |
|
|
3278 | if (types & (EV_TIMER | EV_STAT)) |
|
|
3279 | for (i = timercnt + HEAP0; i-- > HEAP0; ) |
|
|
3280 | #if EV_STAT_ENABLE |
|
|
3281 | /*TODO: timer is not always active*/ |
|
|
3282 | if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb) |
|
|
3283 | { |
|
|
3284 | if (types & EV_STAT) |
|
|
3285 | cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer)); |
|
|
3286 | } |
|
|
3287 | else |
|
|
3288 | #endif |
|
|
3289 | if (types & EV_TIMER) |
|
|
3290 | cb (EV_A_ EV_TIMER, ANHE_w (timers [i])); |
|
|
3291 | |
|
|
3292 | #if EV_PERIODIC_ENABLE |
|
|
3293 | if (types & EV_PERIODIC) |
|
|
3294 | for (i = periodiccnt + HEAP0; i-- > HEAP0; ) |
|
|
3295 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
|
|
3296 | #endif |
|
|
3297 | |
|
|
3298 | #if EV_IDLE_ENABLE |
|
|
3299 | if (types & EV_IDLE) |
|
|
3300 | for (j = NUMPRI; i--; ) |
|
|
3301 | for (i = idlecnt [j]; i--; ) |
|
|
3302 | cb (EV_A_ EV_IDLE, idles [j][i]); |
|
|
3303 | #endif |
|
|
3304 | |
|
|
3305 | #if EV_FORK_ENABLE |
|
|
3306 | if (types & EV_FORK) |
|
|
3307 | for (i = forkcnt; i--; ) |
|
|
3308 | if (ev_cb (forks [i]) != embed_fork_cb) |
|
|
3309 | cb (EV_A_ EV_FORK, forks [i]); |
|
|
3310 | #endif |
|
|
3311 | |
|
|
3312 | #if EV_ASYNC_ENABLE |
|
|
3313 | if (types & EV_ASYNC) |
|
|
3314 | for (i = asynccnt; i--; ) |
|
|
3315 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
|
|
3316 | #endif |
|
|
3317 | |
|
|
3318 | if (types & EV_PREPARE) |
|
|
3319 | for (i = preparecnt; i--; ) |
|
|
3320 | #if EV_EMBED_ENABLE |
|
|
3321 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
|
|
3322 | #endif |
|
|
3323 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
3324 | |
|
|
3325 | if (types & EV_CHECK) |
|
|
3326 | for (i = checkcnt; i--; ) |
|
|
3327 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
3328 | |
|
|
3329 | if (types & EV_SIGNAL) |
|
|
3330 | for (i = 0; i < signalmax; ++i) |
|
|
3331 | for (wl = signals [i].head; wl; ) |
|
|
3332 | { |
|
|
3333 | wn = wl->next; |
|
|
3334 | cb (EV_A_ EV_SIGNAL, wl); |
|
|
3335 | wl = wn; |
|
|
3336 | } |
|
|
3337 | |
|
|
3338 | if (types & EV_CHILD) |
|
|
3339 | for (i = EV_PID_HASHSIZE; i--; ) |
|
|
3340 | for (wl = childs [i]; wl; ) |
|
|
3341 | { |
|
|
3342 | wn = wl->next; |
|
|
3343 | cb (EV_A_ EV_CHILD, wl); |
|
|
3344 | wl = wn; |
|
|
3345 | } |
|
|
3346 | /* EV_STAT 0x00001000 /* stat data changed */ |
|
|
3347 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
|
|
3348 | } |
|
|
3349 | #endif |
|
|
3350 | |
3041 | #if EV_MULTIPLICITY |
3351 | #if EV_MULTIPLICITY |
3042 | #include "ev_wrap.h" |
3352 | #include "ev_wrap.h" |
3043 | #endif |
3353 | #endif |
3044 | |
3354 | |
3045 | #ifdef __cplusplus |
3355 | #ifdef __cplusplus |