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Comparing libev/ev.c (file contents):
Revision 1.227 by root, Fri May 2 07:20:01 2008 UTC vs.
Revision 1.312 by root, Wed Aug 12 18:48:17 2009 UTC

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
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
60# endif
61# endif
62# elif !defined(EV_USE_CLOCK_SYSCALL)
63# define EV_USE_CLOCK_SYSCALL 0
64# endif
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
… …
119# else 133# else
120# define EV_USE_INOTIFY 0 134# define EV_USE_INOTIFY 0
121# endif 135# endif
122# endif 136# endif
123 137
138# ifndef EV_USE_SIGNALFD
139# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H
140# define EV_USE_SIGNALFD 1
141# else
142# define EV_USE_SIGNALFD 0
143# endif
144# endif
145
124# ifndef EV_USE_EVENTFD 146# ifndef EV_USE_EVENTFD
125# if HAVE_EVENTFD 147# if HAVE_EVENTFD
126# define EV_USE_EVENTFD 1 148# define EV_USE_EVENTFD 1
127# else 149# else
128# define EV_USE_EVENTFD 0 150# define EV_USE_EVENTFD 0
129# endif 151# endif
130# endif 152# endif
131 153
132#endif 154#endif
133 155
134#include <math.h> 156#include <math.h>
135#include <stdlib.h> 157#include <stdlib.h>
136#include <fcntl.h> 158#include <fcntl.h>
… …
154#ifndef _WIN32 176#ifndef _WIN32
155# include <sys/time.h> 177# include <sys/time.h>
156# include <sys/wait.h> 178# include <sys/wait.h>
157# include <unistd.h> 179# include <unistd.h>
158#else 180#else
181# include <io.h>
159# define WIN32_LEAN_AND_MEAN 182# define WIN32_LEAN_AND_MEAN
160# include <windows.h> 183# include <windows.h>
161# ifndef EV_SELECT_IS_WINSOCKET 184# ifndef EV_SELECT_IS_WINSOCKET
162# define EV_SELECT_IS_WINSOCKET 1 185# define EV_SELECT_IS_WINSOCKET 1
163# endif 186# endif
164#endif 187#endif
165 188
166/* this block tries to deduce configuration from header-defined symbols and defaults */ 189/* this block tries to deduce configuration from header-defined symbols and defaults */
167 190
191/* try to deduce the maximum number of signals on this platform */
192#if defined (EV_NSIG)
193/* use what's provided */
194#elif defined (NSIG)
195# define EV_NSIG (NSIG)
196#elif defined(_NSIG)
197# define EV_NSIG (_NSIG)
198#elif defined (SIGMAX)
199# define EV_NSIG (SIGMAX+1)
200#elif defined (SIG_MAX)
201# define EV_NSIG (SIG_MAX+1)
202#elif defined (_SIG_MAX)
203# define EV_NSIG (_SIG_MAX+1)
204#elif defined (MAXSIG)
205# define EV_NSIG (MAXSIG+1)
206#elif defined (MAX_SIG)
207# define EV_NSIG (MAX_SIG+1)
208#elif defined (SIGARRAYSIZE)
209# define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */
210#elif defined (_sys_nsig)
211# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
212#else
213# error "unable to find value for NSIG, please report"
214/* to make it compile regardless, just remove the above line */
215# define EV_NSIG 65
216#endif
217
218#ifndef EV_USE_CLOCK_SYSCALL
219# if __linux && __GLIBC__ >= 2
220# define EV_USE_CLOCK_SYSCALL 1
221# else
222# define EV_USE_CLOCK_SYSCALL 0
223# endif
224#endif
225
168#ifndef EV_USE_MONOTONIC 226#ifndef EV_USE_MONOTONIC
227# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0
228# define EV_USE_MONOTONIC 1
229# else
169# define EV_USE_MONOTONIC 0 230# define EV_USE_MONOTONIC 0
231# endif
170#endif 232#endif
171 233
172#ifndef EV_USE_REALTIME 234#ifndef EV_USE_REALTIME
173# define EV_USE_REALTIME 0 235# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
174#endif 236#endif
175 237
176#ifndef EV_USE_NANOSLEEP 238#ifndef EV_USE_NANOSLEEP
239# if _POSIX_C_SOURCE >= 199309L
240# define EV_USE_NANOSLEEP 1
241# else
177# define EV_USE_NANOSLEEP 0 242# define EV_USE_NANOSLEEP 0
243# endif
178#endif 244#endif
179 245
180#ifndef EV_USE_SELECT 246#ifndef EV_USE_SELECT
181# define EV_USE_SELECT 1 247# define EV_USE_SELECT 1
182#endif 248#endif
… …
235# else 301# else
236# define EV_USE_EVENTFD 0 302# define EV_USE_EVENTFD 0
237# endif 303# endif
238#endif 304#endif
239 305
306#ifndef EV_USE_SIGNALFD
307# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 9))
308# define EV_USE_SIGNALFD 1
309# else
310# define EV_USE_SIGNALFD 0
311# endif
312#endif
313
314#if 0 /* debugging */
315# define EV_VERIFY 3
316# define EV_USE_4HEAP 1
317# define EV_HEAP_CACHE_AT 1
318#endif
319
320#ifndef EV_VERIFY
321# define EV_VERIFY !EV_MINIMAL
322#endif
323
324#ifndef EV_USE_4HEAP
325# define EV_USE_4HEAP !EV_MINIMAL
326#endif
327
328#ifndef EV_HEAP_CACHE_AT
329# define EV_HEAP_CACHE_AT !EV_MINIMAL
330#endif
331
332/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
333/* which makes programs even slower. might work on other unices, too. */
334#if EV_USE_CLOCK_SYSCALL
335# include <syscall.h>
336# ifdef SYS_clock_gettime
337# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
338# undef EV_USE_MONOTONIC
339# define EV_USE_MONOTONIC 1
340# else
341# undef EV_USE_CLOCK_SYSCALL
342# define EV_USE_CLOCK_SYSCALL 0
343# endif
344#endif
345
240/* this block fixes any misconfiguration where we know we run into trouble otherwise */ 346/* this block fixes any misconfiguration where we know we run into trouble otherwise */
241 347
242#ifndef CLOCK_MONOTONIC 348#ifndef CLOCK_MONOTONIC
243# undef EV_USE_MONOTONIC 349# undef EV_USE_MONOTONIC
244# define EV_USE_MONOTONIC 0 350# define EV_USE_MONOTONIC 0
… …
259# include <sys/select.h> 365# include <sys/select.h>
260# endif 366# endif
261#endif 367#endif
262 368
263#if EV_USE_INOTIFY 369#if EV_USE_INOTIFY
370# include <sys/utsname.h>
371# include <sys/statfs.h>
264# include <sys/inotify.h> 372# include <sys/inotify.h>
373/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
374# ifndef IN_DONT_FOLLOW
375# undef EV_USE_INOTIFY
376# define EV_USE_INOTIFY 0
377# endif
265#endif 378#endif
266 379
267#if EV_SELECT_IS_WINSOCKET 380#if EV_SELECT_IS_WINSOCKET
268# include <winsock.h> 381# include <winsock.h>
269#endif 382#endif
270 383
271#if EV_USE_EVENTFD 384#if EV_USE_EVENTFD
272/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 385/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
273# include <stdint.h> 386# include <stdint.h>
387# ifndef EFD_NONBLOCK
388# define EFD_NONBLOCK O_NONBLOCK
389# endif
390# ifndef EFD_CLOEXEC
391# ifdef O_CLOEXEC
392# define EFD_CLOEXEC O_CLOEXEC
393# else
394# define EFD_CLOEXEC 02000000
395# endif
396# endif
274# ifdef __cplusplus 397# ifdef __cplusplus
275extern "C" { 398extern "C" {
276# endif 399# endif
277int eventfd (unsigned int initval, int flags); 400int eventfd (unsigned int initval, int flags);
278# ifdef __cplusplus 401# ifdef __cplusplus
279} 402}
280# endif 403# endif
281#endif 404#endif
282 405
406#if EV_USE_SIGNALFD
407# include <sys/signalfd.h>
408#endif
409
283/**/ 410/**/
411
412#if EV_VERIFY >= 3
413# define EV_FREQUENT_CHECK ev_loop_verify (EV_A)
414#else
415# define EV_FREQUENT_CHECK do { } while (0)
416#endif
284 417
285/* 418/*
286 * This is used to avoid floating point rounding problems. 419 * This is used to avoid floating point rounding problems.
287 * It is added to ev_rt_now when scheduling periodics 420 * It is added to ev_rt_now when scheduling periodics
288 * to ensure progress, time-wise, even when rounding 421 * to ensure progress, time-wise, even when rounding
… …
315# define inline_speed static noinline 448# define inline_speed static noinline
316#else 449#else
317# define inline_speed static inline 450# define inline_speed static inline
318#endif 451#endif
319 452
320#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 453#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
454
455#if EV_MINPRI == EV_MAXPRI
456# define ABSPRI(w) (((W)w), 0)
457#else
321#define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 458# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
459#endif
322 460
323#define EMPTY /* required for microsofts broken pseudo-c compiler */ 461#define EMPTY /* required for microsofts broken pseudo-c compiler */
324#define EMPTY2(a,b) /* used to suppress some warnings */ 462#define EMPTY2(a,b) /* used to suppress some warnings */
325 463
326typedef ev_watcher *W; 464typedef ev_watcher *W;
327typedef ev_watcher_list *WL; 465typedef ev_watcher_list *WL;
328typedef ev_watcher_time *WT; 466typedef ev_watcher_time *WT;
329 467
330#if EV_USE_MONOTONIC 468#define ev_active(w) ((W)(w))->active
469#define ev_at(w) ((WT)(w))->at
470
471#if EV_USE_REALTIME
331/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 472/* sig_atomic_t is used to avoid per-thread variables or locking but still */
332/* giving it a reasonably high chance of working on typical architetcures */ 473/* giving it a reasonably high chance of working on typical architetcures */
474static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
475#endif
476
477#if EV_USE_MONOTONIC
333static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 478static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
334#endif 479#endif
335 480
336#ifdef _WIN32 481#ifdef _WIN32
337# include "ev_win32.c" 482# include "ev_win32.c"
… …
346{ 491{
347 syserr_cb = cb; 492 syserr_cb = cb;
348} 493}
349 494
350static void noinline 495static void noinline
351syserr (const char *msg) 496ev_syserr (const char *msg)
352{ 497{
353 if (!msg) 498 if (!msg)
354 msg = "(libev) system error"; 499 msg = "(libev) system error";
355 500
356 if (syserr_cb) 501 if (syserr_cb)
… …
402#define ev_malloc(size) ev_realloc (0, (size)) 547#define ev_malloc(size) ev_realloc (0, (size))
403#define ev_free(ptr) ev_realloc ((ptr), 0) 548#define ev_free(ptr) ev_realloc ((ptr), 0)
404 549
405/*****************************************************************************/ 550/*****************************************************************************/
406 551
552/* set in reify when reification needed */
553#define EV_ANFD_REIFY 1
554
555/* file descriptor info structure */
407typedef struct 556typedef struct
408{ 557{
409 WL head; 558 WL head;
410 unsigned char events; 559 unsigned char events; /* the events watched for */
560 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
561 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
411 unsigned char reify; 562 unsigned char unused;
563#if EV_USE_EPOLL
564 unsigned int egen; /* generation counter to counter epoll bugs */
565#endif
412#if EV_SELECT_IS_WINSOCKET 566#if EV_SELECT_IS_WINSOCKET
413 SOCKET handle; 567 SOCKET handle;
414#endif 568#endif
415} ANFD; 569} ANFD;
416 570
571/* stores the pending event set for a given watcher */
417typedef struct 572typedef struct
418{ 573{
419 W w; 574 W w;
420 int events; 575 int events; /* the pending event set for the given watcher */
421} ANPENDING; 576} ANPENDING;
422 577
423#if EV_USE_INOTIFY 578#if EV_USE_INOTIFY
579/* hash table entry per inotify-id */
424typedef struct 580typedef struct
425{ 581{
426 WL head; 582 WL head;
427} ANFS; 583} ANFS;
584#endif
585
586/* Heap Entry */
587#if EV_HEAP_CACHE_AT
588 /* a heap element */
589 typedef struct {
590 ev_tstamp at;
591 WT w;
592 } ANHE;
593
594 #define ANHE_w(he) (he).w /* access watcher, read-write */
595 #define ANHE_at(he) (he).at /* access cached at, read-only */
596 #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */
597#else
598 /* a heap element */
599 typedef WT ANHE;
600
601 #define ANHE_w(he) (he)
602 #define ANHE_at(he) (he)->at
603 #define ANHE_at_cache(he)
428#endif 604#endif
429 605
430#if EV_MULTIPLICITY 606#if EV_MULTIPLICITY
431 607
432 struct ev_loop 608 struct ev_loop
… …
451 627
452 static int ev_default_loop_ptr; 628 static int ev_default_loop_ptr;
453 629
454#endif 630#endif
455 631
632#if EV_MINIMAL < 2
633# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
634# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
635# define EV_INVOKE_PENDING invoke_cb (EV_A)
636#else
637# define EV_RELEASE_CB (void)0
638# define EV_ACQUIRE_CB (void)0
639# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
640#endif
641
642#define EVUNLOOP_RECURSE 0x80
643
456/*****************************************************************************/ 644/*****************************************************************************/
457 645
646#ifndef EV_HAVE_EV_TIME
458ev_tstamp 647ev_tstamp
459ev_time (void) 648ev_time (void)
460{ 649{
461#if EV_USE_REALTIME 650#if EV_USE_REALTIME
651 if (expect_true (have_realtime))
652 {
462 struct timespec ts; 653 struct timespec ts;
463 clock_gettime (CLOCK_REALTIME, &ts); 654 clock_gettime (CLOCK_REALTIME, &ts);
464 return ts.tv_sec + ts.tv_nsec * 1e-9; 655 return ts.tv_sec + ts.tv_nsec * 1e-9;
465#else 656 }
657#endif
658
466 struct timeval tv; 659 struct timeval tv;
467 gettimeofday (&tv, 0); 660 gettimeofday (&tv, 0);
468 return tv.tv_sec + tv.tv_usec * 1e-6; 661 return tv.tv_sec + tv.tv_usec * 1e-6;
469#endif
470} 662}
663#endif
471 664
472ev_tstamp inline_size 665inline_size ev_tstamp
473get_clock (void) 666get_clock (void)
474{ 667{
475#if EV_USE_MONOTONIC 668#if EV_USE_MONOTONIC
476 if (expect_true (have_monotonic)) 669 if (expect_true (have_monotonic))
477 { 670 {
… …
510 struct timeval tv; 703 struct timeval tv;
511 704
512 tv.tv_sec = (time_t)delay; 705 tv.tv_sec = (time_t)delay;
513 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); 706 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
514 707
708 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
709 /* something not guaranteed by newer posix versions, but guaranteed */
710 /* by older ones */
515 select (0, 0, 0, 0, &tv); 711 select (0, 0, 0, 0, &tv);
516#endif 712#endif
517 } 713 }
518} 714}
519 715
520/*****************************************************************************/ 716/*****************************************************************************/
521 717
522int inline_size 718#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
719
720/* find a suitable new size for the given array, */
721/* hopefully by rounding to a ncie-to-malloc size */
722inline_size int
523array_nextsize (int elem, int cur, int cnt) 723array_nextsize (int elem, int cur, int cnt)
524{ 724{
525 int ncur = cur + 1; 725 int ncur = cur + 1;
526 726
527 do 727 do
528 ncur <<= 1; 728 ncur <<= 1;
529 while (cnt > ncur); 729 while (cnt > ncur);
530 730
531 /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */ 731 /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */
532 if (elem * ncur > 4096) 732 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
533 { 733 {
534 ncur *= elem; 734 ncur *= elem;
535 ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095; 735 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
536 ncur = ncur - sizeof (void *) * 4; 736 ncur = ncur - sizeof (void *) * 4;
537 ncur /= elem; 737 ncur /= elem;
538 } 738 }
539 739
540 return ncur; 740 return ncur;
… …
544array_realloc (int elem, void *base, int *cur, int cnt) 744array_realloc (int elem, void *base, int *cur, int cnt)
545{ 745{
546 *cur = array_nextsize (elem, *cur, cnt); 746 *cur = array_nextsize (elem, *cur, cnt);
547 return ev_realloc (base, elem * *cur); 747 return ev_realloc (base, elem * *cur);
548} 748}
749
750#define array_init_zero(base,count) \
751 memset ((void *)(base), 0, sizeof (*(base)) * (count))
549 752
550#define array_needsize(type,base,cur,cnt,init) \ 753#define array_needsize(type,base,cur,cnt,init) \
551 if (expect_false ((cnt) > (cur))) \ 754 if (expect_false ((cnt) > (cur))) \
552 { \ 755 { \
553 int ocur_ = (cur); \ 756 int ocur_ = (cur); \
… …
565 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ 768 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
566 } 769 }
567#endif 770#endif
568 771
569#define array_free(stem, idx) \ 772#define array_free(stem, idx) \
570 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; 773 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
571 774
572/*****************************************************************************/ 775/*****************************************************************************/
776
777/* dummy callback for pending events */
778static void noinline
779pendingcb (EV_P_ ev_prepare *w, int revents)
780{
781}
573 782
574void noinline 783void noinline
575ev_feed_event (EV_P_ void *w, int revents) 784ev_feed_event (EV_P_ void *w, int revents)
576{ 785{
577 W w_ = (W)w; 786 W w_ = (W)w;
… …
586 pendings [pri][w_->pending - 1].w = w_; 795 pendings [pri][w_->pending - 1].w = w_;
587 pendings [pri][w_->pending - 1].events = revents; 796 pendings [pri][w_->pending - 1].events = revents;
588 } 797 }
589} 798}
590 799
591void inline_speed 800inline_speed void
801feed_reverse (EV_P_ W w)
802{
803 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2);
804 rfeeds [rfeedcnt++] = w;
805}
806
807inline_size void
808feed_reverse_done (EV_P_ int revents)
809{
810 do
811 ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents);
812 while (rfeedcnt);
813}
814
815inline_speed void
592queue_events (EV_P_ W *events, int eventcnt, int type) 816queue_events (EV_P_ W *events, int eventcnt, int type)
593{ 817{
594 int i; 818 int i;
595 819
596 for (i = 0; i < eventcnt; ++i) 820 for (i = 0; i < eventcnt; ++i)
597 ev_feed_event (EV_A_ events [i], type); 821 ev_feed_event (EV_A_ events [i], type);
598} 822}
599 823
600/*****************************************************************************/ 824/*****************************************************************************/
601 825
602void inline_size 826inline_speed void
603anfds_init (ANFD *base, int count)
604{
605 while (count--)
606 {
607 base->head = 0;
608 base->events = EV_NONE;
609 base->reify = 0;
610
611 ++base;
612 }
613}
614
615void inline_speed
616fd_event (EV_P_ int fd, int revents) 827fd_event_nc (EV_P_ int fd, int revents)
617{ 828{
618 ANFD *anfd = anfds + fd; 829 ANFD *anfd = anfds + fd;
619 ev_io *w; 830 ev_io *w;
620 831
621 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 832 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
625 if (ev) 836 if (ev)
626 ev_feed_event (EV_A_ (W)w, ev); 837 ev_feed_event (EV_A_ (W)w, ev);
627 } 838 }
628} 839}
629 840
841/* do not submit kernel events for fds that have reify set */
842/* because that means they changed while we were polling for new events */
843inline_speed void
844fd_event (EV_P_ int fd, int revents)
845{
846 ANFD *anfd = anfds + fd;
847
848 if (expect_true (!anfd->reify))
849 fd_event_nc (EV_A_ fd, revents);
850}
851
630void 852void
631ev_feed_fd_event (EV_P_ int fd, int revents) 853ev_feed_fd_event (EV_P_ int fd, int revents)
632{ 854{
633 if (fd >= 0 && fd < anfdmax) 855 if (fd >= 0 && fd < anfdmax)
634 fd_event (EV_A_ fd, revents); 856 fd_event_nc (EV_A_ fd, revents);
635} 857}
636 858
637void inline_size 859/* make sure the external fd watch events are in-sync */
860/* with the kernel/libev internal state */
861inline_size void
638fd_reify (EV_P) 862fd_reify (EV_P)
639{ 863{
640 int i; 864 int i;
641 865
642 for (i = 0; i < fdchangecnt; ++i) 866 for (i = 0; i < fdchangecnt; ++i)
… …
651 events |= (unsigned char)w->events; 875 events |= (unsigned char)w->events;
652 876
653#if EV_SELECT_IS_WINSOCKET 877#if EV_SELECT_IS_WINSOCKET
654 if (events) 878 if (events)
655 { 879 {
656 unsigned long argp; 880 unsigned long arg;
657 #ifdef EV_FD_TO_WIN32_HANDLE 881 #ifdef EV_FD_TO_WIN32_HANDLE
658 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 882 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
659 #else 883 #else
660 anfd->handle = _get_osfhandle (fd); 884 anfd->handle = _get_osfhandle (fd);
661 #endif 885 #endif
662 assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); 886 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
663 } 887 }
664#endif 888#endif
665 889
666 { 890 {
667 unsigned char o_events = anfd->events; 891 unsigned char o_events = anfd->events;
668 unsigned char o_reify = anfd->reify; 892 unsigned char o_reify = anfd->reify;
669 893
670 anfd->reify = 0; 894 anfd->reify = 0;
671 anfd->events = events; 895 anfd->events = events;
672 896
673 if (o_events != events || o_reify & EV_IOFDSET) 897 if (o_events != events || o_reify & EV__IOFDSET)
674 backend_modify (EV_A_ fd, o_events, events); 898 backend_modify (EV_A_ fd, o_events, events);
675 } 899 }
676 } 900 }
677 901
678 fdchangecnt = 0; 902 fdchangecnt = 0;
679} 903}
680 904
681void inline_size 905/* something about the given fd changed */
906inline_size void
682fd_change (EV_P_ int fd, int flags) 907fd_change (EV_P_ int fd, int flags)
683{ 908{
684 unsigned char reify = anfds [fd].reify; 909 unsigned char reify = anfds [fd].reify;
685 anfds [fd].reify |= flags; 910 anfds [fd].reify |= flags;
686 911
… …
690 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 915 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
691 fdchanges [fdchangecnt - 1] = fd; 916 fdchanges [fdchangecnt - 1] = fd;
692 } 917 }
693} 918}
694 919
695void inline_speed 920/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
921inline_speed void
696fd_kill (EV_P_ int fd) 922fd_kill (EV_P_ int fd)
697{ 923{
698 ev_io *w; 924 ev_io *w;
699 925
700 while ((w = (ev_io *)anfds [fd].head)) 926 while ((w = (ev_io *)anfds [fd].head))
… …
702 ev_io_stop (EV_A_ w); 928 ev_io_stop (EV_A_ w);
703 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 929 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
704 } 930 }
705} 931}
706 932
707int inline_size 933/* check whether the given fd is atcually valid, for error recovery */
934inline_size int
708fd_valid (int fd) 935fd_valid (int fd)
709{ 936{
710#ifdef _WIN32 937#ifdef _WIN32
711 return _get_osfhandle (fd) != -1; 938 return _get_osfhandle (fd) != -1;
712#else 939#else
… …
720{ 947{
721 int fd; 948 int fd;
722 949
723 for (fd = 0; fd < anfdmax; ++fd) 950 for (fd = 0; fd < anfdmax; ++fd)
724 if (anfds [fd].events) 951 if (anfds [fd].events)
725 if (!fd_valid (fd) == -1 && errno == EBADF) 952 if (!fd_valid (fd) && errno == EBADF)
726 fd_kill (EV_A_ fd); 953 fd_kill (EV_A_ fd);
727} 954}
728 955
729/* called on ENOMEM in select/poll to kill some fds and retry */ 956/* called on ENOMEM in select/poll to kill some fds and retry */
730static void noinline 957static void noinline
… …
734 961
735 for (fd = anfdmax; fd--; ) 962 for (fd = anfdmax; fd--; )
736 if (anfds [fd].events) 963 if (anfds [fd].events)
737 { 964 {
738 fd_kill (EV_A_ fd); 965 fd_kill (EV_A_ fd);
739 return; 966 break;
740 } 967 }
741} 968}
742 969
743/* usually called after fork if backend needs to re-arm all fds from scratch */ 970/* usually called after fork if backend needs to re-arm all fds from scratch */
744static void noinline 971static void noinline
… …
748 975
749 for (fd = 0; fd < anfdmax; ++fd) 976 for (fd = 0; fd < anfdmax; ++fd)
750 if (anfds [fd].events) 977 if (anfds [fd].events)
751 { 978 {
752 anfds [fd].events = 0; 979 anfds [fd].events = 0;
980 anfds [fd].emask = 0;
753 fd_change (EV_A_ fd, EV_IOFDSET | 1); 981 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
754 } 982 }
755} 983}
756 984
757/*****************************************************************************/ 985/*****************************************************************************/
758 986
987/*
988 * the heap functions want a real array index. array index 0 uis guaranteed to not
989 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
990 * the branching factor of the d-tree.
991 */
992
993/*
994 * at the moment we allow libev the luxury of two heaps,
995 * a small-code-size 2-heap one and a ~1.5kb larger 4-heap
996 * which is more cache-efficient.
997 * the difference is about 5% with 50000+ watchers.
998 */
999#if EV_USE_4HEAP
1000
1001#define DHEAP 4
1002#define HEAP0 (DHEAP - 1) /* index of first element in heap */
1003#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0)
1004#define UPHEAP_DONE(p,k) ((p) == (k))
1005
1006/* away from the root */
1007inline_speed void
1008downheap (ANHE *heap, int N, int k)
1009{
1010 ANHE he = heap [k];
1011 ANHE *E = heap + N + HEAP0;
1012
1013 for (;;)
1014 {
1015 ev_tstamp minat;
1016 ANHE *minpos;
1017 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;
1018
1019 /* find minimum child */
1020 if (expect_true (pos + DHEAP - 1 < E))
1021 {
1022 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
1023 if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos));
1024 if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos));
1025 if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos));
1026 }
1027 else if (pos < E)
1028 {
1029 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
1030 if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos));
1031 if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos));
1032 if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos));
1033 }
1034 else
1035 break;
1036
1037 if (ANHE_at (he) <= minat)
1038 break;
1039
1040 heap [k] = *minpos;
1041 ev_active (ANHE_w (*minpos)) = k;
1042
1043 k = minpos - heap;
1044 }
1045
1046 heap [k] = he;
1047 ev_active (ANHE_w (he)) = k;
1048}
1049
1050#else /* 4HEAP */
1051
1052#define HEAP0 1
1053#define HPARENT(k) ((k) >> 1)
1054#define UPHEAP_DONE(p,k) (!(p))
1055
1056/* away from the root */
1057inline_speed void
1058downheap (ANHE *heap, int N, int k)
1059{
1060 ANHE he = heap [k];
1061
1062 for (;;)
1063 {
1064 int c = k << 1;
1065
1066 if (c >= N + HEAP0)
1067 break;
1068
1069 c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])
1070 ? 1 : 0;
1071
1072 if (ANHE_at (he) <= ANHE_at (heap [c]))
1073 break;
1074
1075 heap [k] = heap [c];
1076 ev_active (ANHE_w (heap [k])) = k;
1077
1078 k = c;
1079 }
1080
1081 heap [k] = he;
1082 ev_active (ANHE_w (he)) = k;
1083}
1084#endif
1085
759/* towards the root */ 1086/* towards the root */
760void inline_speed 1087inline_speed void
761upheap (WT *heap, int k) 1088upheap (ANHE *heap, int k)
762{ 1089{
763 WT w = heap [k]; 1090 ANHE he = heap [k];
764 1091
765 while (k) 1092 for (;;)
766 { 1093 {
767 int p = (k - 1) >> 1; 1094 int p = HPARENT (k);
768 1095
769 if (heap [p]->at <= w->at) 1096 if (UPHEAP_DONE (p, k) || ANHE_at (heap [p]) <= ANHE_at (he))
770 break; 1097 break;
771 1098
772 heap [k] = heap [p]; 1099 heap [k] = heap [p];
773 ((W)heap [k])->active = k + 1; 1100 ev_active (ANHE_w (heap [k])) = k;
774 k = p; 1101 k = p;
775 } 1102 }
776 1103
777 heap [k] = w; 1104 heap [k] = he;
778 ((W)heap [k])->active = k + 1; 1105 ev_active (ANHE_w (he)) = k;
779} 1106}
780 1107
781/* away from the root */ 1108/* move an element suitably so it is in a correct place */
782void inline_speed 1109inline_size void
783downheap (WT *heap, int N, int k)
784{
785 WT w = heap [k];
786
787 for (;;)
788 {
789 int c = (k << 1) + 1;
790
791 if (c >= N)
792 break;
793
794 c += c + 1 < N && heap [c]->at > heap [c + 1]->at
795 ? 1 : 0;
796
797 if (w->at <= heap [c]->at)
798 break;
799
800 heap [k] = heap [c];
801 ((W)heap [k])->active = k + 1;
802
803 k = c;
804 }
805
806 heap [k] = w;
807 ((W)heap [k])->active = k + 1;
808}
809
810void inline_size
811adjustheap (WT *heap, int N, int k) 1110adjustheap (ANHE *heap, int N, int k)
812{ 1111{
1112 if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)]))
813 upheap (heap, k); 1113 upheap (heap, k);
1114 else
814 downheap (heap, N, k); 1115 downheap (heap, N, k);
1116}
1117
1118/* rebuild the heap: this function is used only once and executed rarely */
1119inline_size void
1120reheap (ANHE *heap, int N)
1121{
1122 int i;
1123
1124 /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */
1125 /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */
1126 for (i = 0; i < N; ++i)
1127 upheap (heap, i + HEAP0);
815} 1128}
816 1129
817/*****************************************************************************/ 1130/*****************************************************************************/
818 1131
1132/* associate signal watchers to a signal signal */
819typedef struct 1133typedef struct
820{ 1134{
1135 EV_ATOMIC_T pending;
1136#if EV_MULTIPLICITY
1137 EV_P;
1138#endif
821 WL head; 1139 WL head;
822 EV_ATOMIC_T gotsig;
823} ANSIG; 1140} ANSIG;
824 1141
825static ANSIG *signals; 1142static ANSIG signals [EV_NSIG - 1];
826static int signalmax;
827
828static EV_ATOMIC_T gotsig;
829
830void inline_size
831signals_init (ANSIG *base, int count)
832{
833 while (count--)
834 {
835 base->head = 0;
836 base->gotsig = 0;
837
838 ++base;
839 }
840}
841 1143
842/*****************************************************************************/ 1144/*****************************************************************************/
843 1145
844void inline_speed 1146/* used to prepare libev internal fd's */
1147/* this is not fork-safe */
1148inline_speed void
845fd_intern (int fd) 1149fd_intern (int fd)
846{ 1150{
847#ifdef _WIN32 1151#ifdef _WIN32
848 int arg = 1; 1152 unsigned long arg = 1;
849 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); 1153 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
850#else 1154#else
851 fcntl (fd, F_SETFD, FD_CLOEXEC); 1155 fcntl (fd, F_SETFD, FD_CLOEXEC);
852 fcntl (fd, F_SETFL, O_NONBLOCK); 1156 fcntl (fd, F_SETFL, O_NONBLOCK);
853#endif 1157#endif
854} 1158}
855 1159
856static void noinline 1160static void noinline
857evpipe_init (EV_P) 1161evpipe_init (EV_P)
858{ 1162{
859 if (!ev_is_active (&pipeev)) 1163 if (!ev_is_active (&pipe_w))
860 { 1164 {
861#if EV_USE_EVENTFD 1165#if EV_USE_EVENTFD
1166 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1167 if (evfd < 0 && errno == EINVAL)
862 if ((evfd = eventfd (0, 0)) >= 0) 1168 evfd = eventfd (0, 0);
1169
1170 if (evfd >= 0)
863 { 1171 {
864 evpipe [0] = -1; 1172 evpipe [0] = -1;
865 fd_intern (evfd); 1173 fd_intern (evfd); /* doing it twice doesn't hurt */
866 ev_io_set (&pipeev, evfd, EV_READ); 1174 ev_io_set (&pipe_w, evfd, EV_READ);
867 } 1175 }
868 else 1176 else
869#endif 1177#endif
870 { 1178 {
871 while (pipe (evpipe)) 1179 while (pipe (evpipe))
872 syserr ("(libev) error creating signal/async pipe"); 1180 ev_syserr ("(libev) error creating signal/async pipe");
873 1181
874 fd_intern (evpipe [0]); 1182 fd_intern (evpipe [0]);
875 fd_intern (evpipe [1]); 1183 fd_intern (evpipe [1]);
876 ev_io_set (&pipeev, evpipe [0], EV_READ); 1184 ev_io_set (&pipe_w, evpipe [0], EV_READ);
877 } 1185 }
878 1186
879 ev_io_start (EV_A_ &pipeev); 1187 ev_io_start (EV_A_ &pipe_w);
880 ev_unref (EV_A); /* watcher should not keep loop alive */ 1188 ev_unref (EV_A); /* watcher should not keep loop alive */
881 } 1189 }
882} 1190}
883 1191
884void inline_size 1192inline_size void
885evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1193evpipe_write (EV_P_ EV_ATOMIC_T *flag)
886{ 1194{
887 if (!*flag) 1195 if (!*flag)
888 { 1196 {
889 int old_errno = errno; /* save errno because write might clobber it */ 1197 int old_errno = errno; /* save errno because write might clobber it */
… …
902 1210
903 errno = old_errno; 1211 errno = old_errno;
904 } 1212 }
905} 1213}
906 1214
1215/* called whenever the libev signal pipe */
1216/* got some events (signal, async) */
907static void 1217static void
908pipecb (EV_P_ ev_io *iow, int revents) 1218pipecb (EV_P_ ev_io *iow, int revents)
909{ 1219{
1220 int i;
1221
910#if EV_USE_EVENTFD 1222#if EV_USE_EVENTFD
911 if (evfd >= 0) 1223 if (evfd >= 0)
912 { 1224 {
913 uint64_t counter = 1; 1225 uint64_t counter;
914 read (evfd, &counter, sizeof (uint64_t)); 1226 read (evfd, &counter, sizeof (uint64_t));
915 } 1227 }
916 else 1228 else
917#endif 1229#endif
918 { 1230 {
919 char dummy; 1231 char dummy;
920 read (evpipe [0], &dummy, 1); 1232 read (evpipe [0], &dummy, 1);
921 } 1233 }
922 1234
923 if (gotsig && ev_is_default_loop (EV_A)) 1235 if (sig_pending)
924 { 1236 {
925 int signum; 1237 sig_pending = 0;
926 gotsig = 0;
927 1238
928 for (signum = signalmax; signum--; ) 1239 for (i = EV_NSIG - 1; i--; )
929 if (signals [signum].gotsig) 1240 if (expect_false (signals [i].pending))
930 ev_feed_signal_event (EV_A_ signum + 1); 1241 ev_feed_signal_event (EV_A_ i + 1);
931 } 1242 }
932 1243
933#if EV_ASYNC_ENABLE 1244#if EV_ASYNC_ENABLE
934 if (gotasync) 1245 if (async_pending)
935 { 1246 {
936 int i; 1247 async_pending = 0;
937 gotasync = 0;
938 1248
939 for (i = asynccnt; i--; ) 1249 for (i = asynccnt; i--; )
940 if (asyncs [i]->sent) 1250 if (asyncs [i]->sent)
941 { 1251 {
942 asyncs [i]->sent = 0; 1252 asyncs [i]->sent = 0;
… …
950 1260
951static void 1261static void
952ev_sighandler (int signum) 1262ev_sighandler (int signum)
953{ 1263{
954#if EV_MULTIPLICITY 1264#if EV_MULTIPLICITY
955 struct ev_loop *loop = &default_loop_struct; 1265 EV_P = signals [signum - 1].loop;
956#endif 1266#endif
957 1267
958#if _WIN32 1268#if _WIN32
959 signal (signum, ev_sighandler); 1269 signal (signum, ev_sighandler);
960#endif 1270#endif
961 1271
962 signals [signum - 1].gotsig = 1; 1272 signals [signum - 1].pending = 1;
963 evpipe_write (EV_A_ &gotsig); 1273 evpipe_write (EV_A_ &sig_pending);
964} 1274}
965 1275
966void noinline 1276void noinline
967ev_feed_signal_event (EV_P_ int signum) 1277ev_feed_signal_event (EV_P_ int signum)
968{ 1278{
969 WL w; 1279 WL w;
970 1280
1281 if (expect_false (signum <= 0 || signum > EV_NSIG))
1282 return;
1283
1284 --signum;
1285
971#if EV_MULTIPLICITY 1286#if EV_MULTIPLICITY
972 assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); 1287 /* it is permissible to try to feed a signal to the wrong loop */
973#endif 1288 /* or, likely more useful, feeding a signal nobody is waiting for */
974 1289
975 --signum; 1290 if (expect_false (signals [signum].loop != EV_A))
976
977 if (signum < 0 || signum >= signalmax)
978 return; 1291 return;
1292#endif
979 1293
980 signals [signum].gotsig = 0; 1294 signals [signum].pending = 0;
981 1295
982 for (w = signals [signum].head; w; w = w->next) 1296 for (w = signals [signum].head; w; w = w->next)
983 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 1297 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
984} 1298}
985 1299
1300#if EV_USE_SIGNALFD
1301static void
1302sigfdcb (EV_P_ ev_io *iow, int revents)
1303{
1304 struct signalfd_siginfo si[2], *sip; /* these structs are big */
1305
1306 for (;;)
1307 {
1308 ssize_t res = read (sigfd, si, sizeof (si));
1309
1310 /* not ISO-C, as res might be -1, but works with SuS */
1311 for (sip = si; (char *)sip < (char *)si + res; ++sip)
1312 ev_feed_signal_event (EV_A_ sip->ssi_signo);
1313
1314 if (res < (ssize_t)sizeof (si))
1315 break;
1316 }
1317}
1318#endif
1319
986/*****************************************************************************/ 1320/*****************************************************************************/
987 1321
988static WL childs [EV_PID_HASHSIZE]; 1322static WL childs [EV_PID_HASHSIZE];
989 1323
990#ifndef _WIN32 1324#ifndef _WIN32
… …
993 1327
994#ifndef WIFCONTINUED 1328#ifndef WIFCONTINUED
995# define WIFCONTINUED(status) 0 1329# define WIFCONTINUED(status) 0
996#endif 1330#endif
997 1331
998void inline_speed 1332/* handle a single child status event */
1333inline_speed void
999child_reap (EV_P_ int chain, int pid, int status) 1334child_reap (EV_P_ int chain, int pid, int status)
1000{ 1335{
1001 ev_child *w; 1336 ev_child *w;
1002 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 1337 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1003 1338
… …
1016 1351
1017#ifndef WCONTINUED 1352#ifndef WCONTINUED
1018# define WCONTINUED 0 1353# define WCONTINUED 0
1019#endif 1354#endif
1020 1355
1356/* called on sigchld etc., calls waitpid */
1021static void 1357static void
1022childcb (EV_P_ ev_signal *sw, int revents) 1358childcb (EV_P_ ev_signal *sw, int revents)
1023{ 1359{
1024 int pid, status; 1360 int pid, status;
1025 1361
… …
1106 /* kqueue is borked on everything but netbsd apparently */ 1442 /* kqueue is borked on everything but netbsd apparently */
1107 /* it usually doesn't work correctly on anything but sockets and pipes */ 1443 /* it usually doesn't work correctly on anything but sockets and pipes */
1108 flags &= ~EVBACKEND_KQUEUE; 1444 flags &= ~EVBACKEND_KQUEUE;
1109#endif 1445#endif
1110#ifdef __APPLE__ 1446#ifdef __APPLE__
1111 // flags &= ~EVBACKEND_KQUEUE; for documentation 1447 /* only select works correctly on that "unix-certified" platform */
1112 flags &= ~EVBACKEND_POLL; 1448 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1449 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1113#endif 1450#endif
1114 1451
1115 return flags; 1452 return flags;
1116} 1453}
1117 1454
… …
1131ev_backend (EV_P) 1468ev_backend (EV_P)
1132{ 1469{
1133 return backend; 1470 return backend;
1134} 1471}
1135 1472
1473#if EV_MINIMAL < 2
1136unsigned int 1474unsigned int
1137ev_loop_count (EV_P) 1475ev_loop_count (EV_P)
1138{ 1476{
1139 return loop_count; 1477 return loop_count;
1140} 1478}
1141 1479
1480unsigned int
1481ev_loop_depth (EV_P)
1482{
1483 return loop_depth;
1484}
1485
1142void 1486void
1143ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 1487ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
1144{ 1488{
1145 io_blocktime = interval; 1489 io_blocktime = interval;
1146} 1490}
… …
1149ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 1493ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
1150{ 1494{
1151 timeout_blocktime = interval; 1495 timeout_blocktime = interval;
1152} 1496}
1153 1497
1498void
1499ev_set_userdata (EV_P_ void *data)
1500{
1501 userdata = data;
1502}
1503
1504void *
1505ev_userdata (EV_P)
1506{
1507 return userdata;
1508}
1509
1510void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))
1511{
1512 invoke_cb = invoke_pending_cb;
1513}
1514
1515void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))
1516{
1517 release_cb = release;
1518 acquire_cb = acquire;
1519}
1520#endif
1521
1522/* initialise a loop structure, must be zero-initialised */
1154static void noinline 1523static void noinline
1155loop_init (EV_P_ unsigned int flags) 1524loop_init (EV_P_ unsigned int flags)
1156{ 1525{
1157 if (!backend) 1526 if (!backend)
1158 { 1527 {
1528#if EV_USE_REALTIME
1529 if (!have_realtime)
1530 {
1531 struct timespec ts;
1532
1533 if (!clock_gettime (CLOCK_REALTIME, &ts))
1534 have_realtime = 1;
1535 }
1536#endif
1537
1159#if EV_USE_MONOTONIC 1538#if EV_USE_MONOTONIC
1539 if (!have_monotonic)
1160 { 1540 {
1161 struct timespec ts; 1541 struct timespec ts;
1542
1162 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 1543 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1163 have_monotonic = 1; 1544 have_monotonic = 1;
1164 } 1545 }
1165#endif 1546#endif
1547
1548 /* pid check not overridable via env */
1549#ifndef _WIN32
1550 if (flags & EVFLAG_FORKCHECK)
1551 curpid = getpid ();
1552#endif
1553
1554 if (!(flags & EVFLAG_NOENV)
1555 && !enable_secure ()
1556 && getenv ("LIBEV_FLAGS"))
1557 flags = atoi (getenv ("LIBEV_FLAGS"));
1166 1558
1167 ev_rt_now = ev_time (); 1559 ev_rt_now = ev_time ();
1168 mn_now = get_clock (); 1560 mn_now = get_clock ();
1169 now_floor = mn_now; 1561 now_floor = mn_now;
1170 rtmn_diff = ev_rt_now - mn_now; 1562 rtmn_diff = ev_rt_now - mn_now;
1563#if EV_MINIMAL < 2
1564 invoke_cb = ev_invoke_pending;
1565#endif
1171 1566
1172 io_blocktime = 0.; 1567 io_blocktime = 0.;
1173 timeout_blocktime = 0.; 1568 timeout_blocktime = 0.;
1174 backend = 0; 1569 backend = 0;
1175 backend_fd = -1; 1570 backend_fd = -1;
1176 gotasync = 0; 1571 sig_pending = 0;
1572#if EV_ASYNC_ENABLE
1573 async_pending = 0;
1574#endif
1177#if EV_USE_INOTIFY 1575#if EV_USE_INOTIFY
1178 fs_fd = -2; 1576 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1179#endif 1577#endif
1180 1578#if EV_USE_SIGNALFD
1181 /* pid check not overridable via env */ 1579 sigfd = flags & EVFLAG_NOSIGFD ? -1 : -2;
1182#ifndef _WIN32
1183 if (flags & EVFLAG_FORKCHECK)
1184 curpid = getpid ();
1185#endif 1580#endif
1186
1187 if (!(flags & EVFLAG_NOENV)
1188 && !enable_secure ()
1189 && getenv ("LIBEV_FLAGS"))
1190 flags = atoi (getenv ("LIBEV_FLAGS"));
1191 1581
1192 if (!(flags & 0x0000ffffU)) 1582 if (!(flags & 0x0000ffffU))
1193 flags |= ev_recommended_backends (); 1583 flags |= ev_recommended_backends ();
1194 1584
1195#if EV_USE_PORT 1585#if EV_USE_PORT
… …
1206#endif 1596#endif
1207#if EV_USE_SELECT 1597#if EV_USE_SELECT
1208 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 1598 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1209#endif 1599#endif
1210 1600
1601 ev_prepare_init (&pending_w, pendingcb);
1602
1211 ev_init (&pipeev, pipecb); 1603 ev_init (&pipe_w, pipecb);
1212 ev_set_priority (&pipeev, EV_MAXPRI); 1604 ev_set_priority (&pipe_w, EV_MAXPRI);
1213 } 1605 }
1214} 1606}
1215 1607
1608/* free up a loop structure */
1216static void noinline 1609static void noinline
1217loop_destroy (EV_P) 1610loop_destroy (EV_P)
1218{ 1611{
1219 int i; 1612 int i;
1220 1613
1221 if (ev_is_active (&pipeev)) 1614 if (ev_is_active (&pipe_w))
1222 { 1615 {
1223 ev_ref (EV_A); /* signal watcher */ 1616 /*ev_ref (EV_A);*/
1224 ev_io_stop (EV_A_ &pipeev); 1617 /*ev_io_stop (EV_A_ &pipe_w);*/
1225 1618
1226#if EV_USE_EVENTFD 1619#if EV_USE_EVENTFD
1227 if (evfd >= 0) 1620 if (evfd >= 0)
1228 close (evfd); 1621 close (evfd);
1229#endif 1622#endif
… …
1233 close (evpipe [0]); 1626 close (evpipe [0]);
1234 close (evpipe [1]); 1627 close (evpipe [1]);
1235 } 1628 }
1236 } 1629 }
1237 1630
1631#if EV_USE_SIGNALFD
1632 if (ev_is_active (&sigfd_w))
1633 {
1634 /*ev_ref (EV_A);*/
1635 /*ev_io_stop (EV_A_ &sigfd_w);*/
1636
1637 close (sigfd);
1638 }
1639#endif
1640
1238#if EV_USE_INOTIFY 1641#if EV_USE_INOTIFY
1239 if (fs_fd >= 0) 1642 if (fs_fd >= 0)
1240 close (fs_fd); 1643 close (fs_fd);
1241#endif 1644#endif
1242 1645
… …
1265#if EV_IDLE_ENABLE 1668#if EV_IDLE_ENABLE
1266 array_free (idle, [i]); 1669 array_free (idle, [i]);
1267#endif 1670#endif
1268 } 1671 }
1269 1672
1270 ev_free (anfds); anfdmax = 0; 1673 ev_free (anfds); anfds = 0; anfdmax = 0;
1271 1674
1272 /* have to use the microsoft-never-gets-it-right macro */ 1675 /* have to use the microsoft-never-gets-it-right macro */
1676 array_free (rfeed, EMPTY);
1273 array_free (fdchange, EMPTY); 1677 array_free (fdchange, EMPTY);
1274 array_free (timer, EMPTY); 1678 array_free (timer, EMPTY);
1275#if EV_PERIODIC_ENABLE 1679#if EV_PERIODIC_ENABLE
1276 array_free (periodic, EMPTY); 1680 array_free (periodic, EMPTY);
1277#endif 1681#endif
… …
1286 1690
1287 backend = 0; 1691 backend = 0;
1288} 1692}
1289 1693
1290#if EV_USE_INOTIFY 1694#if EV_USE_INOTIFY
1291void inline_size infy_fork (EV_P); 1695inline_size void infy_fork (EV_P);
1292#endif 1696#endif
1293 1697
1294void inline_size 1698inline_size void
1295loop_fork (EV_P) 1699loop_fork (EV_P)
1296{ 1700{
1297#if EV_USE_PORT 1701#if EV_USE_PORT
1298 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 1702 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
1299#endif 1703#endif
… …
1305#endif 1709#endif
1306#if EV_USE_INOTIFY 1710#if EV_USE_INOTIFY
1307 infy_fork (EV_A); 1711 infy_fork (EV_A);
1308#endif 1712#endif
1309 1713
1310 if (ev_is_active (&pipeev)) 1714 if (ev_is_active (&pipe_w))
1311 { 1715 {
1312 /* this "locks" the handlers against writing to the pipe */ 1716 /* this "locks" the handlers against writing to the pipe */
1313 /* while we modify the fd vars */ 1717 /* while we modify the fd vars */
1314 gotsig = 1; 1718 sig_pending = 1;
1315#if EV_ASYNC_ENABLE 1719#if EV_ASYNC_ENABLE
1316 gotasync = 1; 1720 async_pending = 1;
1317#endif 1721#endif
1318 1722
1319 ev_ref (EV_A); 1723 ev_ref (EV_A);
1320 ev_io_stop (EV_A_ &pipeev); 1724 ev_io_stop (EV_A_ &pipe_w);
1321 1725
1322#if EV_USE_EVENTFD 1726#if EV_USE_EVENTFD
1323 if (evfd >= 0) 1727 if (evfd >= 0)
1324 close (evfd); 1728 close (evfd);
1325#endif 1729#endif
… …
1330 close (evpipe [1]); 1734 close (evpipe [1]);
1331 } 1735 }
1332 1736
1333 evpipe_init (EV_A); 1737 evpipe_init (EV_A);
1334 /* now iterate over everything, in case we missed something */ 1738 /* now iterate over everything, in case we missed something */
1335 pipecb (EV_A_ &pipeev, EV_READ); 1739 pipecb (EV_A_ &pipe_w, EV_READ);
1336 } 1740 }
1337 1741
1338 postfork = 0; 1742 postfork = 0;
1339} 1743}
1340 1744
1341#if EV_MULTIPLICITY 1745#if EV_MULTIPLICITY
1746
1342struct ev_loop * 1747struct ev_loop *
1343ev_loop_new (unsigned int flags) 1748ev_loop_new (unsigned int flags)
1344{ 1749{
1345 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 1750 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1346 1751
1347 memset (loop, 0, sizeof (struct ev_loop)); 1752 memset (EV_A, 0, sizeof (struct ev_loop));
1348
1349 loop_init (EV_A_ flags); 1753 loop_init (EV_A_ flags);
1350 1754
1351 if (ev_backend (EV_A)) 1755 if (ev_backend (EV_A))
1352 return loop; 1756 return EV_A;
1353 1757
1354 return 0; 1758 return 0;
1355} 1759}
1356 1760
1357void 1761void
… …
1364void 1768void
1365ev_loop_fork (EV_P) 1769ev_loop_fork (EV_P)
1366{ 1770{
1367 postfork = 1; /* must be in line with ev_default_fork */ 1771 postfork = 1; /* must be in line with ev_default_fork */
1368} 1772}
1773#endif /* multiplicity */
1369 1774
1775#if EV_VERIFY
1776static void noinline
1777verify_watcher (EV_P_ W w)
1778{
1779 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1780
1781 if (w->pending)
1782 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1783}
1784
1785static void noinline
1786verify_heap (EV_P_ ANHE *heap, int N)
1787{
1788 int i;
1789
1790 for (i = HEAP0; i < N + HEAP0; ++i)
1791 {
1792 assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i));
1793 assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i])));
1794 assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i]))));
1795
1796 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1797 }
1798}
1799
1800static void noinline
1801array_verify (EV_P_ W *ws, int cnt)
1802{
1803 while (cnt--)
1804 {
1805 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1806 verify_watcher (EV_A_ ws [cnt]);
1807 }
1808}
1809#endif
1810
1811#if EV_MINIMAL < 2
1812void
1813ev_loop_verify (EV_P)
1814{
1815#if EV_VERIFY
1816 int i;
1817 WL w;
1818
1819 assert (activecnt >= -1);
1820
1821 assert (fdchangemax >= fdchangecnt);
1822 for (i = 0; i < fdchangecnt; ++i)
1823 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
1824
1825 assert (anfdmax >= 0);
1826 for (i = 0; i < anfdmax; ++i)
1827 for (w = anfds [i].head; w; w = w->next)
1828 {
1829 verify_watcher (EV_A_ (W)w);
1830 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
1831 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
1832 }
1833
1834 assert (timermax >= timercnt);
1835 verify_heap (EV_A_ timers, timercnt);
1836
1837#if EV_PERIODIC_ENABLE
1838 assert (periodicmax >= periodiccnt);
1839 verify_heap (EV_A_ periodics, periodiccnt);
1840#endif
1841
1842 for (i = NUMPRI; i--; )
1843 {
1844 assert (pendingmax [i] >= pendingcnt [i]);
1845#if EV_IDLE_ENABLE
1846 assert (idleall >= 0);
1847 assert (idlemax [i] >= idlecnt [i]);
1848 array_verify (EV_A_ (W *)idles [i], idlecnt [i]);
1849#endif
1850 }
1851
1852#if EV_FORK_ENABLE
1853 assert (forkmax >= forkcnt);
1854 array_verify (EV_A_ (W *)forks, forkcnt);
1855#endif
1856
1857#if EV_ASYNC_ENABLE
1858 assert (asyncmax >= asynccnt);
1859 array_verify (EV_A_ (W *)asyncs, asynccnt);
1860#endif
1861
1862 assert (preparemax >= preparecnt);
1863 array_verify (EV_A_ (W *)prepares, preparecnt);
1864
1865 assert (checkmax >= checkcnt);
1866 array_verify (EV_A_ (W *)checks, checkcnt);
1867
1868# if 0
1869 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
1870 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
1871# endif
1872#endif
1873}
1370#endif 1874#endif
1371 1875
1372#if EV_MULTIPLICITY 1876#if EV_MULTIPLICITY
1373struct ev_loop * 1877struct ev_loop *
1374ev_default_loop_init (unsigned int flags) 1878ev_default_loop_init (unsigned int flags)
… …
1378#endif 1882#endif
1379{ 1883{
1380 if (!ev_default_loop_ptr) 1884 if (!ev_default_loop_ptr)
1381 { 1885 {
1382#if EV_MULTIPLICITY 1886#if EV_MULTIPLICITY
1383 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; 1887 EV_P = ev_default_loop_ptr = &default_loop_struct;
1384#else 1888#else
1385 ev_default_loop_ptr = 1; 1889 ev_default_loop_ptr = 1;
1386#endif 1890#endif
1387 1891
1388 loop_init (EV_A_ flags); 1892 loop_init (EV_A_ flags);
… …
1405 1909
1406void 1910void
1407ev_default_destroy (void) 1911ev_default_destroy (void)
1408{ 1912{
1409#if EV_MULTIPLICITY 1913#if EV_MULTIPLICITY
1410 struct ev_loop *loop = ev_default_loop_ptr; 1914 EV_P = ev_default_loop_ptr;
1411#endif 1915#endif
1916
1917 ev_default_loop_ptr = 0;
1412 1918
1413#ifndef _WIN32 1919#ifndef _WIN32
1414 ev_ref (EV_A); /* child watcher */ 1920 ev_ref (EV_A); /* child watcher */
1415 ev_signal_stop (EV_A_ &childev); 1921 ev_signal_stop (EV_A_ &childev);
1416#endif 1922#endif
… …
1420 1926
1421void 1927void
1422ev_default_fork (void) 1928ev_default_fork (void)
1423{ 1929{
1424#if EV_MULTIPLICITY 1930#if EV_MULTIPLICITY
1425 struct ev_loop *loop = ev_default_loop_ptr; 1931 EV_P = ev_default_loop_ptr;
1426#endif 1932#endif
1427 1933
1428 if (backend)
1429 postfork = 1; /* must be in line with ev_loop_fork */ 1934 postfork = 1; /* must be in line with ev_loop_fork */
1430} 1935}
1431 1936
1432/*****************************************************************************/ 1937/*****************************************************************************/
1433 1938
1434void 1939void
1435ev_invoke (EV_P_ void *w, int revents) 1940ev_invoke (EV_P_ void *w, int revents)
1436{ 1941{
1437 EV_CB_INVOKE ((W)w, revents); 1942 EV_CB_INVOKE ((W)w, revents);
1438} 1943}
1439 1944
1440void inline_speed 1945unsigned int
1441call_pending (EV_P) 1946ev_pending_count (EV_P)
1947{
1948 int pri;
1949 unsigned int count = 0;
1950
1951 for (pri = NUMPRI; pri--; )
1952 count += pendingcnt [pri];
1953
1954 return count;
1955}
1956
1957void noinline
1958ev_invoke_pending (EV_P)
1442{ 1959{
1443 int pri; 1960 int pri;
1444 1961
1445 for (pri = NUMPRI; pri--; ) 1962 for (pri = NUMPRI; pri--; )
1446 while (pendingcnt [pri]) 1963 while (pendingcnt [pri])
1447 { 1964 {
1448 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 1965 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1449 1966
1450 if (expect_true (p->w))
1451 {
1452 /*assert (("non-pending watcher on pending list", p->w->pending));*/ 1967 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
1968 /* ^ this is no longer true, as pending_w could be here */
1453 1969
1454 p->w->pending = 0; 1970 p->w->pending = 0;
1455 EV_CB_INVOKE (p->w, p->events); 1971 EV_CB_INVOKE (p->w, p->events);
1456 } 1972 EV_FREQUENT_CHECK;
1457 } 1973 }
1458} 1974}
1459 1975
1460void inline_size
1461timers_reify (EV_P)
1462{
1463 while (timercnt && ((WT)timers [0])->at <= mn_now)
1464 {
1465 ev_timer *w = (ev_timer *)timers [0];
1466
1467 /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
1468
1469 /* first reschedule or stop timer */
1470 if (w->repeat)
1471 {
1472 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1473
1474 ((WT)w)->at += w->repeat;
1475 if (((WT)w)->at < mn_now)
1476 ((WT)w)->at = mn_now;
1477
1478 downheap (timers, timercnt, 0);
1479 }
1480 else
1481 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1482
1483 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
1484 }
1485}
1486
1487#if EV_PERIODIC_ENABLE
1488void inline_size
1489periodics_reify (EV_P)
1490{
1491 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1492 {
1493 ev_periodic *w = (ev_periodic *)periodics [0];
1494
1495 /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
1496
1497 /* first reschedule or stop timer */
1498 if (w->reschedule_cb)
1499 {
1500 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON);
1501 assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1502 downheap (periodics, periodiccnt, 0);
1503 }
1504 else if (w->interval)
1505 {
1506 ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1507 if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval;
1508 assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
1509 downheap (periodics, periodiccnt, 0);
1510 }
1511 else
1512 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1513
1514 ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
1515 }
1516}
1517
1518static void noinline
1519periodics_reschedule (EV_P)
1520{
1521 int i;
1522
1523 /* adjust periodics after time jump */
1524 for (i = 0; i < periodiccnt; ++i)
1525 {
1526 ev_periodic *w = (ev_periodic *)periodics [i];
1527
1528 if (w->reschedule_cb)
1529 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1530 else if (w->interval)
1531 ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1532 }
1533
1534 /* now rebuild the heap */
1535 for (i = periodiccnt >> 1; i--; )
1536 downheap (periodics, periodiccnt, i);
1537}
1538#endif
1539
1540#if EV_IDLE_ENABLE 1976#if EV_IDLE_ENABLE
1541void inline_size 1977/* make idle watchers pending. this handles the "call-idle */
1978/* only when higher priorities are idle" logic */
1979inline_size void
1542idle_reify (EV_P) 1980idle_reify (EV_P)
1543{ 1981{
1544 if (expect_false (idleall)) 1982 if (expect_false (idleall))
1545 { 1983 {
1546 int pri; 1984 int pri;
… …
1558 } 1996 }
1559 } 1997 }
1560} 1998}
1561#endif 1999#endif
1562 2000
1563void inline_speed 2001/* make timers pending */
2002inline_size void
2003timers_reify (EV_P)
2004{
2005 EV_FREQUENT_CHECK;
2006
2007 if (timercnt && ANHE_at (timers [HEAP0]) < mn_now)
2008 {
2009 do
2010 {
2011 ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]);
2012
2013 /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/
2014
2015 /* first reschedule or stop timer */
2016 if (w->repeat)
2017 {
2018 ev_at (w) += w->repeat;
2019 if (ev_at (w) < mn_now)
2020 ev_at (w) = mn_now;
2021
2022 assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.));
2023
2024 ANHE_at_cache (timers [HEAP0]);
2025 downheap (timers, timercnt, HEAP0);
2026 }
2027 else
2028 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
2029
2030 EV_FREQUENT_CHECK;
2031 feed_reverse (EV_A_ (W)w);
2032 }
2033 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
2034
2035 feed_reverse_done (EV_A_ EV_TIMEOUT);
2036 }
2037}
2038
2039#if EV_PERIODIC_ENABLE
2040/* make periodics pending */
2041inline_size void
2042periodics_reify (EV_P)
2043{
2044 EV_FREQUENT_CHECK;
2045
2046 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2047 {
2048 int feed_count = 0;
2049
2050 do
2051 {
2052 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2053
2054 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
2055
2056 /* first reschedule or stop timer */
2057 if (w->reschedule_cb)
2058 {
2059 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2060
2061 assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now));
2062
2063 ANHE_at_cache (periodics [HEAP0]);
2064 downheap (periodics, periodiccnt, HEAP0);
2065 }
2066 else if (w->interval)
2067 {
2068 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2069 /* if next trigger time is not sufficiently in the future, put it there */
2070 /* this might happen because of floating point inexactness */
2071 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
2072 {
2073 ev_at (w) += w->interval;
2074
2075 /* if interval is unreasonably low we might still have a time in the past */
2076 /* so correct this. this will make the periodic very inexact, but the user */
2077 /* has effectively asked to get triggered more often than possible */
2078 if (ev_at (w) < ev_rt_now)
2079 ev_at (w) = ev_rt_now;
2080 }
2081
2082 ANHE_at_cache (periodics [HEAP0]);
2083 downheap (periodics, periodiccnt, HEAP0);
2084 }
2085 else
2086 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
2087
2088 EV_FREQUENT_CHECK;
2089 feed_reverse (EV_A_ (W)w);
2090 }
2091 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now);
2092
2093 feed_reverse_done (EV_A_ EV_PERIODIC);
2094 }
2095}
2096
2097/* simply recalculate all periodics */
2098/* TODO: maybe ensure that at leats one event happens when jumping forward? */
2099static void noinline
2100periodics_reschedule (EV_P)
2101{
2102 int i;
2103
2104 /* adjust periodics after time jump */
2105 for (i = HEAP0; i < periodiccnt + HEAP0; ++i)
2106 {
2107 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
2108
2109 if (w->reschedule_cb)
2110 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2111 else if (w->interval)
2112 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2113
2114 ANHE_at_cache (periodics [i]);
2115 }
2116
2117 reheap (periodics, periodiccnt);
2118}
2119#endif
2120
2121/* adjust all timers by a given offset */
2122static void noinline
2123timers_reschedule (EV_P_ ev_tstamp adjust)
2124{
2125 int i;
2126
2127 for (i = 0; i < timercnt; ++i)
2128 {
2129 ANHE *he = timers + i + HEAP0;
2130 ANHE_w (*he)->at += adjust;
2131 ANHE_at_cache (*he);
2132 }
2133}
2134
2135/* fetch new monotonic and realtime times from the kernel */
2136/* also detetc if there was a timejump, and act accordingly */
2137inline_speed void
1564time_update (EV_P_ ev_tstamp max_block) 2138time_update (EV_P_ ev_tstamp max_block)
1565{ 2139{
1566 int i;
1567
1568#if EV_USE_MONOTONIC 2140#if EV_USE_MONOTONIC
1569 if (expect_true (have_monotonic)) 2141 if (expect_true (have_monotonic))
1570 { 2142 {
2143 int i;
1571 ev_tstamp odiff = rtmn_diff; 2144 ev_tstamp odiff = rtmn_diff;
1572 2145
1573 mn_now = get_clock (); 2146 mn_now = get_clock ();
1574 2147
1575 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ 2148 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
… …
1593 */ 2166 */
1594 for (i = 4; --i; ) 2167 for (i = 4; --i; )
1595 { 2168 {
1596 rtmn_diff = ev_rt_now - mn_now; 2169 rtmn_diff = ev_rt_now - mn_now;
1597 2170
1598 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) 2171 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP))
1599 return; /* all is well */ 2172 return; /* all is well */
1600 2173
1601 ev_rt_now = ev_time (); 2174 ev_rt_now = ev_time ();
1602 mn_now = get_clock (); 2175 mn_now = get_clock ();
1603 now_floor = mn_now; 2176 now_floor = mn_now;
1604 } 2177 }
1605 2178
2179 /* no timer adjustment, as the monotonic clock doesn't jump */
2180 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1606# if EV_PERIODIC_ENABLE 2181# if EV_PERIODIC_ENABLE
1607 periodics_reschedule (EV_A); 2182 periodics_reschedule (EV_A);
1608# endif 2183# endif
1609 /* no timer adjustment, as the monotonic clock doesn't jump */
1610 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1611 } 2184 }
1612 else 2185 else
1613#endif 2186#endif
1614 { 2187 {
1615 ev_rt_now = ev_time (); 2188 ev_rt_now = ev_time ();
1616 2189
1617 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) 2190 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
1618 { 2191 {
2192 /* adjust timers. this is easy, as the offset is the same for all of them */
2193 timers_reschedule (EV_A_ ev_rt_now - mn_now);
1619#if EV_PERIODIC_ENABLE 2194#if EV_PERIODIC_ENABLE
1620 periodics_reschedule (EV_A); 2195 periodics_reschedule (EV_A);
1621#endif 2196#endif
1622 /* adjust timers. this is easy, as the offset is the same for all of them */
1623 for (i = 0; i < timercnt; ++i)
1624 ((WT)timers [i])->at += ev_rt_now - mn_now;
1625 } 2197 }
1626 2198
1627 mn_now = ev_rt_now; 2199 mn_now = ev_rt_now;
1628 } 2200 }
1629} 2201}
1630 2202
1631void 2203void
1632ev_ref (EV_P)
1633{
1634 ++activecnt;
1635}
1636
1637void
1638ev_unref (EV_P)
1639{
1640 --activecnt;
1641}
1642
1643static int loop_done;
1644
1645void
1646ev_loop (EV_P_ int flags) 2204ev_loop (EV_P_ int flags)
1647{ 2205{
2206#if EV_MINIMAL < 2
2207 ++loop_depth;
2208#endif
2209
2210 assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE));
2211
1648 loop_done = EVUNLOOP_CANCEL; 2212 loop_done = EVUNLOOP_CANCEL;
1649 2213
1650 call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ 2214 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
1651 2215
1652 do 2216 do
1653 { 2217 {
2218#if EV_VERIFY >= 2
2219 ev_loop_verify (EV_A);
2220#endif
2221
1654#ifndef _WIN32 2222#ifndef _WIN32
1655 if (expect_false (curpid)) /* penalise the forking check even more */ 2223 if (expect_false (curpid)) /* penalise the forking check even more */
1656 if (expect_false (getpid () != curpid)) 2224 if (expect_false (getpid () != curpid))
1657 { 2225 {
1658 curpid = getpid (); 2226 curpid = getpid ();
… …
1664 /* we might have forked, so queue fork handlers */ 2232 /* we might have forked, so queue fork handlers */
1665 if (expect_false (postfork)) 2233 if (expect_false (postfork))
1666 if (forkcnt) 2234 if (forkcnt)
1667 { 2235 {
1668 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2236 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
1669 call_pending (EV_A); 2237 EV_INVOKE_PENDING;
1670 } 2238 }
1671#endif 2239#endif
1672 2240
1673 /* queue prepare watchers (and execute them) */ 2241 /* queue prepare watchers (and execute them) */
1674 if (expect_false (preparecnt)) 2242 if (expect_false (preparecnt))
1675 { 2243 {
1676 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 2244 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1677 call_pending (EV_A); 2245 EV_INVOKE_PENDING;
1678 } 2246 }
1679 2247
1680 if (expect_false (!activecnt)) 2248 if (expect_false (loop_done))
1681 break; 2249 break;
1682 2250
1683 /* we might have forked, so reify kernel state if necessary */ 2251 /* we might have forked, so reify kernel state if necessary */
1684 if (expect_false (postfork)) 2252 if (expect_false (postfork))
1685 loop_fork (EV_A); 2253 loop_fork (EV_A);
… …
1692 ev_tstamp waittime = 0.; 2260 ev_tstamp waittime = 0.;
1693 ev_tstamp sleeptime = 0.; 2261 ev_tstamp sleeptime = 0.;
1694 2262
1695 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 2263 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))
1696 { 2264 {
2265 /* remember old timestamp for io_blocktime calculation */
2266 ev_tstamp prev_mn_now = mn_now;
2267
1697 /* update time to cancel out callback processing overhead */ 2268 /* update time to cancel out callback processing overhead */
1698 time_update (EV_A_ 1e100); 2269 time_update (EV_A_ 1e100);
1699 2270
1700 waittime = MAX_BLOCKTIME; 2271 waittime = MAX_BLOCKTIME;
1701 2272
1702 if (timercnt) 2273 if (timercnt)
1703 { 2274 {
1704 ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; 2275 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge;
1705 if (waittime > to) waittime = to; 2276 if (waittime > to) waittime = to;
1706 } 2277 }
1707 2278
1708#if EV_PERIODIC_ENABLE 2279#if EV_PERIODIC_ENABLE
1709 if (periodiccnt) 2280 if (periodiccnt)
1710 { 2281 {
1711 ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; 2282 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge;
1712 if (waittime > to) waittime = to; 2283 if (waittime > to) waittime = to;
1713 } 2284 }
1714#endif 2285#endif
1715 2286
2287 /* don't let timeouts decrease the waittime below timeout_blocktime */
1716 if (expect_false (waittime < timeout_blocktime)) 2288 if (expect_false (waittime < timeout_blocktime))
1717 waittime = timeout_blocktime; 2289 waittime = timeout_blocktime;
1718 2290
1719 sleeptime = waittime - backend_fudge; 2291 /* extra check because io_blocktime is commonly 0 */
1720
1721 if (expect_true (sleeptime > io_blocktime)) 2292 if (expect_false (io_blocktime))
1722 sleeptime = io_blocktime;
1723
1724 if (sleeptime)
1725 { 2293 {
2294 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2295
2296 if (sleeptime > waittime - backend_fudge)
2297 sleeptime = waittime - backend_fudge;
2298
2299 if (expect_true (sleeptime > 0.))
2300 {
1726 ev_sleep (sleeptime); 2301 ev_sleep (sleeptime);
1727 waittime -= sleeptime; 2302 waittime -= sleeptime;
2303 }
1728 } 2304 }
1729 } 2305 }
1730 2306
2307#if EV_MINIMAL < 2
1731 ++loop_count; 2308 ++loop_count;
2309#endif
2310 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */
1732 backend_poll (EV_A_ waittime); 2311 backend_poll (EV_A_ waittime);
2312 assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */
1733 2313
1734 /* update ev_rt_now, do magic */ 2314 /* update ev_rt_now, do magic */
1735 time_update (EV_A_ waittime + sleeptime); 2315 time_update (EV_A_ waittime + sleeptime);
1736 } 2316 }
1737 2317
… …
1748 2328
1749 /* queue check watchers, to be executed first */ 2329 /* queue check watchers, to be executed first */
1750 if (expect_false (checkcnt)) 2330 if (expect_false (checkcnt))
1751 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 2331 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1752 2332
1753 call_pending (EV_A); 2333 EV_INVOKE_PENDING;
1754 } 2334 }
1755 while (expect_true ( 2335 while (expect_true (
1756 activecnt 2336 activecnt
1757 && !loop_done 2337 && !loop_done
1758 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 2338 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK))
1759 )); 2339 ));
1760 2340
1761 if (loop_done == EVUNLOOP_ONE) 2341 if (loop_done == EVUNLOOP_ONE)
1762 loop_done = EVUNLOOP_CANCEL; 2342 loop_done = EVUNLOOP_CANCEL;
2343
2344#if EV_MINIMAL < 2
2345 --loop_depth;
2346#endif
1763} 2347}
1764 2348
1765void 2349void
1766ev_unloop (EV_P_ int how) 2350ev_unloop (EV_P_ int how)
1767{ 2351{
1768 loop_done = how; 2352 loop_done = how;
1769} 2353}
1770 2354
2355void
2356ev_ref (EV_P)
2357{
2358 ++activecnt;
2359}
2360
2361void
2362ev_unref (EV_P)
2363{
2364 --activecnt;
2365}
2366
2367void
2368ev_now_update (EV_P)
2369{
2370 time_update (EV_A_ 1e100);
2371}
2372
2373void
2374ev_suspend (EV_P)
2375{
2376 ev_now_update (EV_A);
2377}
2378
2379void
2380ev_resume (EV_P)
2381{
2382 ev_tstamp mn_prev = mn_now;
2383
2384 ev_now_update (EV_A);
2385 timers_reschedule (EV_A_ mn_now - mn_prev);
2386#if EV_PERIODIC_ENABLE
2387 /* TODO: really do this? */
2388 periodics_reschedule (EV_A);
2389#endif
2390}
2391
1771/*****************************************************************************/ 2392/*****************************************************************************/
2393/* singly-linked list management, used when the expected list length is short */
1772 2394
1773void inline_size 2395inline_size void
1774wlist_add (WL *head, WL elem) 2396wlist_add (WL *head, WL elem)
1775{ 2397{
1776 elem->next = *head; 2398 elem->next = *head;
1777 *head = elem; 2399 *head = elem;
1778} 2400}
1779 2401
1780void inline_size 2402inline_size void
1781wlist_del (WL *head, WL elem) 2403wlist_del (WL *head, WL elem)
1782{ 2404{
1783 while (*head) 2405 while (*head)
1784 { 2406 {
1785 if (*head == elem) 2407 if (expect_true (*head == elem))
1786 { 2408 {
1787 *head = elem->next; 2409 *head = elem->next;
1788 return; 2410 break;
1789 } 2411 }
1790 2412
1791 head = &(*head)->next; 2413 head = &(*head)->next;
1792 } 2414 }
1793} 2415}
1794 2416
1795void inline_speed 2417/* internal, faster, version of ev_clear_pending */
2418inline_speed void
1796clear_pending (EV_P_ W w) 2419clear_pending (EV_P_ W w)
1797{ 2420{
1798 if (w->pending) 2421 if (w->pending)
1799 { 2422 {
1800 pendings [ABSPRI (w)][w->pending - 1].w = 0; 2423 pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w;
1801 w->pending = 0; 2424 w->pending = 0;
1802 } 2425 }
1803} 2426}
1804 2427
1805int 2428int
… …
1809 int pending = w_->pending; 2432 int pending = w_->pending;
1810 2433
1811 if (expect_true (pending)) 2434 if (expect_true (pending))
1812 { 2435 {
1813 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; 2436 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
2437 p->w = (W)&pending_w;
1814 w_->pending = 0; 2438 w_->pending = 0;
1815 p->w = 0;
1816 return p->events; 2439 return p->events;
1817 } 2440 }
1818 else 2441 else
1819 return 0; 2442 return 0;
1820} 2443}
1821 2444
1822void inline_size 2445inline_size void
1823pri_adjust (EV_P_ W w) 2446pri_adjust (EV_P_ W w)
1824{ 2447{
1825 int pri = w->priority; 2448 int pri = ev_priority (w);
1826 pri = pri < EV_MINPRI ? EV_MINPRI : pri; 2449 pri = pri < EV_MINPRI ? EV_MINPRI : pri;
1827 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; 2450 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
1828 w->priority = pri; 2451 ev_set_priority (w, pri);
1829} 2452}
1830 2453
1831void inline_speed 2454inline_speed void
1832ev_start (EV_P_ W w, int active) 2455ev_start (EV_P_ W w, int active)
1833{ 2456{
1834 pri_adjust (EV_A_ w); 2457 pri_adjust (EV_A_ w);
1835 w->active = active; 2458 w->active = active;
1836 ev_ref (EV_A); 2459 ev_ref (EV_A);
1837} 2460}
1838 2461
1839void inline_size 2462inline_size void
1840ev_stop (EV_P_ W w) 2463ev_stop (EV_P_ W w)
1841{ 2464{
1842 ev_unref (EV_A); 2465 ev_unref (EV_A);
1843 w->active = 0; 2466 w->active = 0;
1844} 2467}
… …
1851 int fd = w->fd; 2474 int fd = w->fd;
1852 2475
1853 if (expect_false (ev_is_active (w))) 2476 if (expect_false (ev_is_active (w)))
1854 return; 2477 return;
1855 2478
1856 assert (("ev_io_start called with negative fd", fd >= 0)); 2479 assert (("libev: ev_io_start called with negative fd", fd >= 0));
2480 assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2481
2482 EV_FREQUENT_CHECK;
1857 2483
1858 ev_start (EV_A_ (W)w, 1); 2484 ev_start (EV_A_ (W)w, 1);
1859 array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); 2485 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
1860 wlist_add (&anfds[fd].head, (WL)w); 2486 wlist_add (&anfds[fd].head, (WL)w);
1861 2487
1862 fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); 2488 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
1863 w->events &= ~EV_IOFDSET; 2489 w->events &= ~EV__IOFDSET;
2490
2491 EV_FREQUENT_CHECK;
1864} 2492}
1865 2493
1866void noinline 2494void noinline
1867ev_io_stop (EV_P_ ev_io *w) 2495ev_io_stop (EV_P_ ev_io *w)
1868{ 2496{
1869 clear_pending (EV_A_ (W)w); 2497 clear_pending (EV_A_ (W)w);
1870 if (expect_false (!ev_is_active (w))) 2498 if (expect_false (!ev_is_active (w)))
1871 return; 2499 return;
1872 2500
1873 assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); 2501 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
2502
2503 EV_FREQUENT_CHECK;
1874 2504
1875 wlist_del (&anfds[w->fd].head, (WL)w); 2505 wlist_del (&anfds[w->fd].head, (WL)w);
1876 ev_stop (EV_A_ (W)w); 2506 ev_stop (EV_A_ (W)w);
1877 2507
1878 fd_change (EV_A_ w->fd, 1); 2508 fd_change (EV_A_ w->fd, 1);
2509
2510 EV_FREQUENT_CHECK;
1879} 2511}
1880 2512
1881void noinline 2513void noinline
1882ev_timer_start (EV_P_ ev_timer *w) 2514ev_timer_start (EV_P_ ev_timer *w)
1883{ 2515{
1884 if (expect_false (ev_is_active (w))) 2516 if (expect_false (ev_is_active (w)))
1885 return; 2517 return;
1886 2518
1887 ((WT)w)->at += mn_now; 2519 ev_at (w) += mn_now;
1888 2520
1889 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 2521 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1890 2522
2523 EV_FREQUENT_CHECK;
2524
2525 ++timercnt;
1891 ev_start (EV_A_ (W)w, ++timercnt); 2526 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
1892 array_needsize (WT, timers, timermax, timercnt, EMPTY2); 2527 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2);
1893 timers [timercnt - 1] = (WT)w; 2528 ANHE_w (timers [ev_active (w)]) = (WT)w;
1894 upheap (timers, timercnt - 1); 2529 ANHE_at_cache (timers [ev_active (w)]);
2530 upheap (timers, ev_active (w));
1895 2531
2532 EV_FREQUENT_CHECK;
2533
1896 /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ 2534 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
1897} 2535}
1898 2536
1899void noinline 2537void noinline
1900ev_timer_stop (EV_P_ ev_timer *w) 2538ev_timer_stop (EV_P_ ev_timer *w)
1901{ 2539{
1902 clear_pending (EV_A_ (W)w); 2540 clear_pending (EV_A_ (W)w);
1903 if (expect_false (!ev_is_active (w))) 2541 if (expect_false (!ev_is_active (w)))
1904 return; 2542 return;
1905 2543
1906 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w)); 2544 EV_FREQUENT_CHECK;
1907 2545
1908 { 2546 {
1909 int active = ((W)w)->active; 2547 int active = ev_active (w);
1910 2548
2549 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
2550
2551 --timercnt;
2552
1911 if (expect_true (--active < --timercnt)) 2553 if (expect_true (active < timercnt + HEAP0))
1912 { 2554 {
1913 timers [active] = timers [timercnt]; 2555 timers [active] = timers [timercnt + HEAP0];
1914 adjustheap (timers, timercnt, active); 2556 adjustheap (timers, timercnt, active);
1915 } 2557 }
1916 } 2558 }
1917 2559
1918 ((WT)w)->at -= mn_now; 2560 EV_FREQUENT_CHECK;
2561
2562 ev_at (w) -= mn_now;
1919 2563
1920 ev_stop (EV_A_ (W)w); 2564 ev_stop (EV_A_ (W)w);
1921} 2565}
1922 2566
1923void noinline 2567void noinline
1924ev_timer_again (EV_P_ ev_timer *w) 2568ev_timer_again (EV_P_ ev_timer *w)
1925{ 2569{
2570 EV_FREQUENT_CHECK;
2571
1926 if (ev_is_active (w)) 2572 if (ev_is_active (w))
1927 { 2573 {
1928 if (w->repeat) 2574 if (w->repeat)
1929 { 2575 {
1930 ((WT)w)->at = mn_now + w->repeat; 2576 ev_at (w) = mn_now + w->repeat;
2577 ANHE_at_cache (timers [ev_active (w)]);
1931 adjustheap (timers, timercnt, ((W)w)->active - 1); 2578 adjustheap (timers, timercnt, ev_active (w));
1932 } 2579 }
1933 else 2580 else
1934 ev_timer_stop (EV_A_ w); 2581 ev_timer_stop (EV_A_ w);
1935 } 2582 }
1936 else if (w->repeat) 2583 else if (w->repeat)
1937 { 2584 {
1938 w->at = w->repeat; 2585 ev_at (w) = w->repeat;
1939 ev_timer_start (EV_A_ w); 2586 ev_timer_start (EV_A_ w);
1940 } 2587 }
2588
2589 EV_FREQUENT_CHECK;
2590}
2591
2592ev_tstamp
2593ev_timer_remaining (EV_P_ ev_timer *w)
2594{
2595 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
1941} 2596}
1942 2597
1943#if EV_PERIODIC_ENABLE 2598#if EV_PERIODIC_ENABLE
1944void noinline 2599void noinline
1945ev_periodic_start (EV_P_ ev_periodic *w) 2600ev_periodic_start (EV_P_ ev_periodic *w)
1946{ 2601{
1947 if (expect_false (ev_is_active (w))) 2602 if (expect_false (ev_is_active (w)))
1948 return; 2603 return;
1949 2604
1950 if (w->reschedule_cb) 2605 if (w->reschedule_cb)
1951 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); 2606 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1952 else if (w->interval) 2607 else if (w->interval)
1953 { 2608 {
1954 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); 2609 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
1955 /* this formula differs from the one in periodic_reify because we do not always round up */ 2610 /* this formula differs from the one in periodic_reify because we do not always round up */
1956 ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2611 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1957 } 2612 }
1958 else 2613 else
1959 ((WT)w)->at = w->offset; 2614 ev_at (w) = w->offset;
1960 2615
2616 EV_FREQUENT_CHECK;
2617
2618 ++periodiccnt;
1961 ev_start (EV_A_ (W)w, ++periodiccnt); 2619 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
1962 array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2); 2620 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2);
1963 periodics [periodiccnt - 1] = (WT)w; 2621 ANHE_w (periodics [ev_active (w)]) = (WT)w;
1964 upheap (periodics, periodiccnt - 1); 2622 ANHE_at_cache (periodics [ev_active (w)]);
2623 upheap (periodics, ev_active (w));
1965 2624
2625 EV_FREQUENT_CHECK;
2626
1966 /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ 2627 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
1967} 2628}
1968 2629
1969void noinline 2630void noinline
1970ev_periodic_stop (EV_P_ ev_periodic *w) 2631ev_periodic_stop (EV_P_ ev_periodic *w)
1971{ 2632{
1972 clear_pending (EV_A_ (W)w); 2633 clear_pending (EV_A_ (W)w);
1973 if (expect_false (!ev_is_active (w))) 2634 if (expect_false (!ev_is_active (w)))
1974 return; 2635 return;
1975 2636
1976 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w)); 2637 EV_FREQUENT_CHECK;
1977 2638
1978 { 2639 {
1979 int active = ((W)w)->active; 2640 int active = ev_active (w);
1980 2641
2642 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
2643
2644 --periodiccnt;
2645
1981 if (expect_true (--active < --periodiccnt)) 2646 if (expect_true (active < periodiccnt + HEAP0))
1982 { 2647 {
1983 periodics [active] = periodics [periodiccnt]; 2648 periodics [active] = periodics [periodiccnt + HEAP0];
1984 adjustheap (periodics, periodiccnt, active); 2649 adjustheap (periodics, periodiccnt, active);
1985 } 2650 }
1986 } 2651 }
1987 2652
2653 EV_FREQUENT_CHECK;
2654
1988 ev_stop (EV_A_ (W)w); 2655 ev_stop (EV_A_ (W)w);
1989} 2656}
1990 2657
1991void noinline 2658void noinline
1992ev_periodic_again (EV_P_ ev_periodic *w) 2659ev_periodic_again (EV_P_ ev_periodic *w)
… …
2002#endif 2669#endif
2003 2670
2004void noinline 2671void noinline
2005ev_signal_start (EV_P_ ev_signal *w) 2672ev_signal_start (EV_P_ ev_signal *w)
2006{ 2673{
2007#if EV_MULTIPLICITY
2008 assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2009#endif
2010 if (expect_false (ev_is_active (w))) 2674 if (expect_false (ev_is_active (w)))
2011 return; 2675 return;
2012 2676
2013 assert (("ev_signal_start called with illegal signal number", w->signum > 0)); 2677 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
2014 2678
2015 evpipe_init (EV_A); 2679#if EV_MULTIPLICITY
2680 assert (("libev: a signal must not be attached to two different loops",
2681 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
2016 2682
2683 signals [w->signum - 1].loop = EV_A;
2684#endif
2685
2686 EV_FREQUENT_CHECK;
2687
2688#if EV_USE_SIGNALFD
2689 if (sigfd == -2)
2017 { 2690 {
2018#ifndef _WIN32 2691 sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC);
2019 sigset_t full, prev; 2692 if (sigfd < 0 && errno == EINVAL)
2020 sigfillset (&full); 2693 sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */
2021 sigprocmask (SIG_SETMASK, &full, &prev);
2022#endif
2023 2694
2024 array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); 2695 if (sigfd >= 0)
2696 {
2697 fd_intern (sigfd); /* doing it twice will not hurt */
2025 2698
2026#ifndef _WIN32 2699 sigemptyset (&sigfd_set);
2027 sigprocmask (SIG_SETMASK, &prev, 0); 2700
2028#endif 2701 ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ);
2702 ev_set_priority (&sigfd_w, EV_MAXPRI);
2703 ev_io_start (EV_A_ &sigfd_w);
2704 ev_unref (EV_A); /* signalfd watcher should not keep loop alive */
2705 }
2029 } 2706 }
2707
2708 if (sigfd >= 0)
2709 {
2710 /* TODO: check .head */
2711 sigaddset (&sigfd_set, w->signum);
2712 sigprocmask (SIG_BLOCK, &sigfd_set, 0);
2713
2714 signalfd (sigfd, &sigfd_set, 0);
2715 }
2716#endif
2030 2717
2031 ev_start (EV_A_ (W)w, 1); 2718 ev_start (EV_A_ (W)w, 1);
2032 wlist_add (&signals [w->signum - 1].head, (WL)w); 2719 wlist_add (&signals [w->signum - 1].head, (WL)w);
2033 2720
2034 if (!((WL)w)->next) 2721 if (!((WL)w)->next)
2722# if EV_USE_SIGNALFD
2723 if (sigfd < 0) /*TODO*/
2724# endif
2035 { 2725 {
2036#if _WIN32 2726# if _WIN32
2037 signal (w->signum, ev_sighandler); 2727 signal (w->signum, ev_sighandler);
2038#else 2728# else
2039 struct sigaction sa; 2729 struct sigaction sa;
2730
2731 evpipe_init (EV_A);
2732
2040 sa.sa_handler = ev_sighandler; 2733 sa.sa_handler = ev_sighandler;
2041 sigfillset (&sa.sa_mask); 2734 sigfillset (&sa.sa_mask);
2042 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 2735 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2043 sigaction (w->signum, &sa, 0); 2736 sigaction (w->signum, &sa, 0);
2737
2738 sigemptyset (&sa.sa_mask);
2739 sigaddset (&sa.sa_mask, w->signum);
2740 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
2044#endif 2741#endif
2045 } 2742 }
2743
2744 EV_FREQUENT_CHECK;
2046} 2745}
2047 2746
2048void noinline 2747void noinline
2049ev_signal_stop (EV_P_ ev_signal *w) 2748ev_signal_stop (EV_P_ ev_signal *w)
2050{ 2749{
2051 clear_pending (EV_A_ (W)w); 2750 clear_pending (EV_A_ (W)w);
2052 if (expect_false (!ev_is_active (w))) 2751 if (expect_false (!ev_is_active (w)))
2053 return; 2752 return;
2054 2753
2754 EV_FREQUENT_CHECK;
2755
2055 wlist_del (&signals [w->signum - 1].head, (WL)w); 2756 wlist_del (&signals [w->signum - 1].head, (WL)w);
2056 ev_stop (EV_A_ (W)w); 2757 ev_stop (EV_A_ (W)w);
2057 2758
2058 if (!signals [w->signum - 1].head) 2759 if (!signals [w->signum - 1].head)
2760 {
2761#if EV_MULTIPLICITY
2762 signals [w->signum - 1].loop = 0; /* unattach from signal */
2763#endif
2764#if EV_USE_SIGNALFD
2765 if (sigfd >= 0)
2766 {
2767 sigprocmask (SIG_UNBLOCK, &sigfd_set, 0);//D
2768 sigdelset (&sigfd_set, w->signum);
2769 signalfd (sigfd, &sigfd_set, 0);
2770 sigprocmask (SIG_BLOCK, &sigfd_set, 0);//D
2771 /*TODO: maybe unblock signal? */
2772 }
2773 else
2774#endif
2059 signal (w->signum, SIG_DFL); 2775 signal (w->signum, SIG_DFL);
2776 }
2777
2778 EV_FREQUENT_CHECK;
2060} 2779}
2061 2780
2062void 2781void
2063ev_child_start (EV_P_ ev_child *w) 2782ev_child_start (EV_P_ ev_child *w)
2064{ 2783{
2065#if EV_MULTIPLICITY 2784#if EV_MULTIPLICITY
2066 assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 2785 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2067#endif 2786#endif
2068 if (expect_false (ev_is_active (w))) 2787 if (expect_false (ev_is_active (w)))
2069 return; 2788 return;
2070 2789
2790 EV_FREQUENT_CHECK;
2791
2071 ev_start (EV_A_ (W)w, 1); 2792 ev_start (EV_A_ (W)w, 1);
2072 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 2793 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
2794
2795 EV_FREQUENT_CHECK;
2073} 2796}
2074 2797
2075void 2798void
2076ev_child_stop (EV_P_ ev_child *w) 2799ev_child_stop (EV_P_ ev_child *w)
2077{ 2800{
2078 clear_pending (EV_A_ (W)w); 2801 clear_pending (EV_A_ (W)w);
2079 if (expect_false (!ev_is_active (w))) 2802 if (expect_false (!ev_is_active (w)))
2080 return; 2803 return;
2081 2804
2805 EV_FREQUENT_CHECK;
2806
2082 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 2807 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
2083 ev_stop (EV_A_ (W)w); 2808 ev_stop (EV_A_ (W)w);
2809
2810 EV_FREQUENT_CHECK;
2084} 2811}
2085 2812
2086#if EV_STAT_ENABLE 2813#if EV_STAT_ENABLE
2087 2814
2088# ifdef _WIN32 2815# ifdef _WIN32
2089# undef lstat 2816# undef lstat
2090# define lstat(a,b) _stati64 (a,b) 2817# define lstat(a,b) _stati64 (a,b)
2091# endif 2818# endif
2092 2819
2093#define DEF_STAT_INTERVAL 5.0074891 2820#define DEF_STAT_INTERVAL 5.0074891
2821#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
2094#define MIN_STAT_INTERVAL 0.1074891 2822#define MIN_STAT_INTERVAL 0.1074891
2095 2823
2096static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 2824static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2097 2825
2098#if EV_USE_INOTIFY 2826#if EV_USE_INOTIFY
2099# define EV_INOTIFY_BUFSIZE 8192 2827# define EV_INOTIFY_BUFSIZE 8192
… …
2103{ 2831{
2104 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); 2832 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);
2105 2833
2106 if (w->wd < 0) 2834 if (w->wd < 0)
2107 { 2835 {
2836 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2108 ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ 2837 ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2109 2838
2110 /* monitor some parent directory for speedup hints */ 2839 /* monitor some parent directory for speedup hints */
2840 /* note that exceeding the hardcoded path limit is not a correctness issue, */
2841 /* but an efficiency issue only */
2111 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) 2842 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2112 { 2843 {
2113 char path [4096]; 2844 char path [4096];
2114 strcpy (path, w->path); 2845 strcpy (path, w->path);
2115 2846
… …
2118 int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF 2849 int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF
2119 | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); 2850 | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);
2120 2851
2121 char *pend = strrchr (path, '/'); 2852 char *pend = strrchr (path, '/');
2122 2853
2123 if (!pend) 2854 if (!pend || pend == path)
2124 break; /* whoops, no '/', complain to your admin */ 2855 break;
2125 2856
2126 *pend = 0; 2857 *pend = 0;
2127 w->wd = inotify_add_watch (fs_fd, path, mask); 2858 w->wd = inotify_add_watch (fs_fd, path, mask);
2128 } 2859 }
2129 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 2860 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2130 } 2861 }
2131 } 2862 }
2132 else
2133 ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */
2134 2863
2135 if (w->wd >= 0) 2864 if (w->wd >= 0)
2865 {
2866 struct statfs sfs;
2867
2136 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 2868 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
2869
2870 /* now local changes will be tracked by inotify, but remote changes won't */
2871 /* unless the filesystem it known to be local, we therefore still poll */
2872 /* also do poll on <2.6.25, but with normal frequency */
2873
2874 if (fs_2625 && !statfs (w->path, &sfs))
2875 if (sfs.f_type == 0x1373 /* devfs */
2876 || sfs.f_type == 0xEF53 /* ext2/3 */
2877 || sfs.f_type == 0x3153464a /* jfs */
2878 || sfs.f_type == 0x52654973 /* reiser3 */
2879 || sfs.f_type == 0x01021994 /* tempfs */
2880 || sfs.f_type == 0x58465342 /* xfs */)
2881 return;
2882
2883 w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
2884 ev_timer_again (EV_A_ &w->timer);
2885 }
2137} 2886}
2138 2887
2139static void noinline 2888static void noinline
2140infy_del (EV_P_ ev_stat *w) 2889infy_del (EV_P_ ev_stat *w)
2141{ 2890{
… …
2155 2904
2156static void noinline 2905static void noinline
2157infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 2906infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2158{ 2907{
2159 if (slot < 0) 2908 if (slot < 0)
2160 /* overflow, need to check for all hahs slots */ 2909 /* overflow, need to check for all hash slots */
2161 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 2910 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
2162 infy_wd (EV_A_ slot, wd, ev); 2911 infy_wd (EV_A_ slot, wd, ev);
2163 else 2912 else
2164 { 2913 {
2165 WL w_; 2914 WL w_;
… …
2171 2920
2172 if (w->wd == wd || wd == -1) 2921 if (w->wd == wd || wd == -1)
2173 { 2922 {
2174 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 2923 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2175 { 2924 {
2925 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
2176 w->wd = -1; 2926 w->wd = -1;
2177 infy_add (EV_A_ w); /* re-add, no matter what */ 2927 infy_add (EV_A_ w); /* re-add, no matter what */
2178 } 2928 }
2179 2929
2180 stat_timer_cb (EV_A_ &w->timer, 0); 2930 stat_timer_cb (EV_A_ &w->timer, 0);
… …
2193 2943
2194 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) 2944 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)
2195 infy_wd (EV_A_ ev->wd, ev->wd, ev); 2945 infy_wd (EV_A_ ev->wd, ev->wd, ev);
2196} 2946}
2197 2947
2198void inline_size 2948inline_size void
2949check_2625 (EV_P)
2950{
2951 /* kernels < 2.6.25 are borked
2952 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2953 */
2954 struct utsname buf;
2955 int major, minor, micro;
2956
2957 if (uname (&buf))
2958 return;
2959
2960 if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
2961 return;
2962
2963 if (major < 2
2964 || (major == 2 && minor < 6)
2965 || (major == 2 && minor == 6 && micro < 25))
2966 return;
2967
2968 fs_2625 = 1;
2969}
2970
2971inline_size void
2199infy_init (EV_P) 2972infy_init (EV_P)
2200{ 2973{
2201 if (fs_fd != -2) 2974 if (fs_fd != -2)
2202 return; 2975 return;
2976
2977 fs_fd = -1;
2978
2979 check_2625 (EV_A);
2203 2980
2204 fs_fd = inotify_init (); 2981 fs_fd = inotify_init ();
2205 2982
2206 if (fs_fd >= 0) 2983 if (fs_fd >= 0)
2207 { 2984 {
… …
2209 ev_set_priority (&fs_w, EV_MAXPRI); 2986 ev_set_priority (&fs_w, EV_MAXPRI);
2210 ev_io_start (EV_A_ &fs_w); 2987 ev_io_start (EV_A_ &fs_w);
2211 } 2988 }
2212} 2989}
2213 2990
2214void inline_size 2991inline_size void
2215infy_fork (EV_P) 2992infy_fork (EV_P)
2216{ 2993{
2217 int slot; 2994 int slot;
2218 2995
2219 if (fs_fd < 0) 2996 if (fs_fd < 0)
… …
2235 w->wd = -1; 3012 w->wd = -1;
2236 3013
2237 if (fs_fd >= 0) 3014 if (fs_fd >= 0)
2238 infy_add (EV_A_ w); /* re-add, no matter what */ 3015 infy_add (EV_A_ w); /* re-add, no matter what */
2239 else 3016 else
2240 ev_timer_start (EV_A_ &w->timer); 3017 ev_timer_again (EV_A_ &w->timer);
2241 } 3018 }
2242
2243 } 3019 }
2244} 3020}
2245 3021
3022#endif
3023
3024#ifdef _WIN32
3025# define EV_LSTAT(p,b) _stati64 (p, b)
3026#else
3027# define EV_LSTAT(p,b) lstat (p, b)
2246#endif 3028#endif
2247 3029
2248void 3030void
2249ev_stat_stat (EV_P_ ev_stat *w) 3031ev_stat_stat (EV_P_ ev_stat *w)
2250{ 3032{
… …
2277 || w->prev.st_atime != w->attr.st_atime 3059 || w->prev.st_atime != w->attr.st_atime
2278 || w->prev.st_mtime != w->attr.st_mtime 3060 || w->prev.st_mtime != w->attr.st_mtime
2279 || w->prev.st_ctime != w->attr.st_ctime 3061 || w->prev.st_ctime != w->attr.st_ctime
2280 ) { 3062 ) {
2281 #if EV_USE_INOTIFY 3063 #if EV_USE_INOTIFY
3064 if (fs_fd >= 0)
3065 {
2282 infy_del (EV_A_ w); 3066 infy_del (EV_A_ w);
2283 infy_add (EV_A_ w); 3067 infy_add (EV_A_ w);
2284 ev_stat_stat (EV_A_ w); /* avoid race... */ 3068 ev_stat_stat (EV_A_ w); /* avoid race... */
3069 }
2285 #endif 3070 #endif
2286 3071
2287 ev_feed_event (EV_A_ w, EV_STAT); 3072 ev_feed_event (EV_A_ w, EV_STAT);
2288 } 3073 }
2289} 3074}
… …
2292ev_stat_start (EV_P_ ev_stat *w) 3077ev_stat_start (EV_P_ ev_stat *w)
2293{ 3078{
2294 if (expect_false (ev_is_active (w))) 3079 if (expect_false (ev_is_active (w)))
2295 return; 3080 return;
2296 3081
2297 /* since we use memcmp, we need to clear any padding data etc. */
2298 memset (&w->prev, 0, sizeof (ev_statdata));
2299 memset (&w->attr, 0, sizeof (ev_statdata));
2300
2301 ev_stat_stat (EV_A_ w); 3082 ev_stat_stat (EV_A_ w);
2302 3083
3084 if (w->interval < MIN_STAT_INTERVAL && w->interval)
2303 if (w->interval < MIN_STAT_INTERVAL) 3085 w->interval = MIN_STAT_INTERVAL;
2304 w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
2305 3086
2306 ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); 3087 ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL);
2307 ev_set_priority (&w->timer, ev_priority (w)); 3088 ev_set_priority (&w->timer, ev_priority (w));
2308 3089
2309#if EV_USE_INOTIFY 3090#if EV_USE_INOTIFY
2310 infy_init (EV_A); 3091 infy_init (EV_A);
2311 3092
2312 if (fs_fd >= 0) 3093 if (fs_fd >= 0)
2313 infy_add (EV_A_ w); 3094 infy_add (EV_A_ w);
2314 else 3095 else
2315#endif 3096#endif
2316 ev_timer_start (EV_A_ &w->timer); 3097 ev_timer_again (EV_A_ &w->timer);
2317 3098
2318 ev_start (EV_A_ (W)w, 1); 3099 ev_start (EV_A_ (W)w, 1);
3100
3101 EV_FREQUENT_CHECK;
2319} 3102}
2320 3103
2321void 3104void
2322ev_stat_stop (EV_P_ ev_stat *w) 3105ev_stat_stop (EV_P_ ev_stat *w)
2323{ 3106{
2324 clear_pending (EV_A_ (W)w); 3107 clear_pending (EV_A_ (W)w);
2325 if (expect_false (!ev_is_active (w))) 3108 if (expect_false (!ev_is_active (w)))
2326 return; 3109 return;
2327 3110
3111 EV_FREQUENT_CHECK;
3112
2328#if EV_USE_INOTIFY 3113#if EV_USE_INOTIFY
2329 infy_del (EV_A_ w); 3114 infy_del (EV_A_ w);
2330#endif 3115#endif
2331 ev_timer_stop (EV_A_ &w->timer); 3116 ev_timer_stop (EV_A_ &w->timer);
2332 3117
2333 ev_stop (EV_A_ (W)w); 3118 ev_stop (EV_A_ (W)w);
3119
3120 EV_FREQUENT_CHECK;
2334} 3121}
2335#endif 3122#endif
2336 3123
2337#if EV_IDLE_ENABLE 3124#if EV_IDLE_ENABLE
2338void 3125void
… …
2340{ 3127{
2341 if (expect_false (ev_is_active (w))) 3128 if (expect_false (ev_is_active (w)))
2342 return; 3129 return;
2343 3130
2344 pri_adjust (EV_A_ (W)w); 3131 pri_adjust (EV_A_ (W)w);
3132
3133 EV_FREQUENT_CHECK;
2345 3134
2346 { 3135 {
2347 int active = ++idlecnt [ABSPRI (w)]; 3136 int active = ++idlecnt [ABSPRI (w)];
2348 3137
2349 ++idleall; 3138 ++idleall;
2350 ev_start (EV_A_ (W)w, active); 3139 ev_start (EV_A_ (W)w, active);
2351 3140
2352 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); 3141 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);
2353 idles [ABSPRI (w)][active - 1] = w; 3142 idles [ABSPRI (w)][active - 1] = w;
2354 } 3143 }
3144
3145 EV_FREQUENT_CHECK;
2355} 3146}
2356 3147
2357void 3148void
2358ev_idle_stop (EV_P_ ev_idle *w) 3149ev_idle_stop (EV_P_ ev_idle *w)
2359{ 3150{
2360 clear_pending (EV_A_ (W)w); 3151 clear_pending (EV_A_ (W)w);
2361 if (expect_false (!ev_is_active (w))) 3152 if (expect_false (!ev_is_active (w)))
2362 return; 3153 return;
2363 3154
3155 EV_FREQUENT_CHECK;
3156
2364 { 3157 {
2365 int active = ((W)w)->active; 3158 int active = ev_active (w);
2366 3159
2367 idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; 3160 idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
2368 ((W)idles [ABSPRI (w)][active - 1])->active = active; 3161 ev_active (idles [ABSPRI (w)][active - 1]) = active;
2369 3162
2370 ev_stop (EV_A_ (W)w); 3163 ev_stop (EV_A_ (W)w);
2371 --idleall; 3164 --idleall;
2372 } 3165 }
3166
3167 EV_FREQUENT_CHECK;
2373} 3168}
2374#endif 3169#endif
2375 3170
2376void 3171void
2377ev_prepare_start (EV_P_ ev_prepare *w) 3172ev_prepare_start (EV_P_ ev_prepare *w)
2378{ 3173{
2379 if (expect_false (ev_is_active (w))) 3174 if (expect_false (ev_is_active (w)))
2380 return; 3175 return;
3176
3177 EV_FREQUENT_CHECK;
2381 3178
2382 ev_start (EV_A_ (W)w, ++preparecnt); 3179 ev_start (EV_A_ (W)w, ++preparecnt);
2383 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); 3180 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
2384 prepares [preparecnt - 1] = w; 3181 prepares [preparecnt - 1] = w;
3182
3183 EV_FREQUENT_CHECK;
2385} 3184}
2386 3185
2387void 3186void
2388ev_prepare_stop (EV_P_ ev_prepare *w) 3187ev_prepare_stop (EV_P_ ev_prepare *w)
2389{ 3188{
2390 clear_pending (EV_A_ (W)w); 3189 clear_pending (EV_A_ (W)w);
2391 if (expect_false (!ev_is_active (w))) 3190 if (expect_false (!ev_is_active (w)))
2392 return; 3191 return;
2393 3192
3193 EV_FREQUENT_CHECK;
3194
2394 { 3195 {
2395 int active = ((W)w)->active; 3196 int active = ev_active (w);
3197
2396 prepares [active - 1] = prepares [--preparecnt]; 3198 prepares [active - 1] = prepares [--preparecnt];
2397 ((W)prepares [active - 1])->active = active; 3199 ev_active (prepares [active - 1]) = active;
2398 } 3200 }
2399 3201
2400 ev_stop (EV_A_ (W)w); 3202 ev_stop (EV_A_ (W)w);
3203
3204 EV_FREQUENT_CHECK;
2401} 3205}
2402 3206
2403void 3207void
2404ev_check_start (EV_P_ ev_check *w) 3208ev_check_start (EV_P_ ev_check *w)
2405{ 3209{
2406 if (expect_false (ev_is_active (w))) 3210 if (expect_false (ev_is_active (w)))
2407 return; 3211 return;
3212
3213 EV_FREQUENT_CHECK;
2408 3214
2409 ev_start (EV_A_ (W)w, ++checkcnt); 3215 ev_start (EV_A_ (W)w, ++checkcnt);
2410 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); 3216 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
2411 checks [checkcnt - 1] = w; 3217 checks [checkcnt - 1] = w;
3218
3219 EV_FREQUENT_CHECK;
2412} 3220}
2413 3221
2414void 3222void
2415ev_check_stop (EV_P_ ev_check *w) 3223ev_check_stop (EV_P_ ev_check *w)
2416{ 3224{
2417 clear_pending (EV_A_ (W)w); 3225 clear_pending (EV_A_ (W)w);
2418 if (expect_false (!ev_is_active (w))) 3226 if (expect_false (!ev_is_active (w)))
2419 return; 3227 return;
2420 3228
3229 EV_FREQUENT_CHECK;
3230
2421 { 3231 {
2422 int active = ((W)w)->active; 3232 int active = ev_active (w);
3233
2423 checks [active - 1] = checks [--checkcnt]; 3234 checks [active - 1] = checks [--checkcnt];
2424 ((W)checks [active - 1])->active = active; 3235 ev_active (checks [active - 1]) = active;
2425 } 3236 }
2426 3237
2427 ev_stop (EV_A_ (W)w); 3238 ev_stop (EV_A_ (W)w);
3239
3240 EV_FREQUENT_CHECK;
2428} 3241}
2429 3242
2430#if EV_EMBED_ENABLE 3243#if EV_EMBED_ENABLE
2431void noinline 3244void noinline
2432ev_embed_sweep (EV_P_ ev_embed *w) 3245ev_embed_sweep (EV_P_ ev_embed *w)
… …
2449embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 3262embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
2450{ 3263{
2451 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); 3264 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
2452 3265
2453 { 3266 {
2454 struct ev_loop *loop = w->other; 3267 EV_P = w->other;
2455 3268
2456 while (fdchangecnt) 3269 while (fdchangecnt)
2457 { 3270 {
2458 fd_reify (EV_A); 3271 fd_reify (EV_A);
2459 ev_loop (EV_A_ EVLOOP_NONBLOCK); 3272 ev_loop (EV_A_ EVLOOP_NONBLOCK);
2460 } 3273 }
2461 } 3274 }
2462} 3275}
2463 3276
3277static void
3278embed_fork_cb (EV_P_ ev_fork *fork_w, int revents)
3279{
3280 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
3281
3282 ev_embed_stop (EV_A_ w);
3283
3284 {
3285 EV_P = w->other;
3286
3287 ev_loop_fork (EV_A);
3288 ev_loop (EV_A_ EVLOOP_NONBLOCK);
3289 }
3290
3291 ev_embed_start (EV_A_ w);
3292}
3293
2464#if 0 3294#if 0
2465static void 3295static void
2466embed_idle_cb (EV_P_ ev_idle *idle, int revents) 3296embed_idle_cb (EV_P_ ev_idle *idle, int revents)
2467{ 3297{
2468 ev_idle_stop (EV_A_ idle); 3298 ev_idle_stop (EV_A_ idle);
… …
2474{ 3304{
2475 if (expect_false (ev_is_active (w))) 3305 if (expect_false (ev_is_active (w)))
2476 return; 3306 return;
2477 3307
2478 { 3308 {
2479 struct ev_loop *loop = w->other; 3309 EV_P = w->other;
2480 assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 3310 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2481 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); 3311 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2482 } 3312 }
3313
3314 EV_FREQUENT_CHECK;
2483 3315
2484 ev_set_priority (&w->io, ev_priority (w)); 3316 ev_set_priority (&w->io, ev_priority (w));
2485 ev_io_start (EV_A_ &w->io); 3317 ev_io_start (EV_A_ &w->io);
2486 3318
2487 ev_prepare_init (&w->prepare, embed_prepare_cb); 3319 ev_prepare_init (&w->prepare, embed_prepare_cb);
2488 ev_set_priority (&w->prepare, EV_MINPRI); 3320 ev_set_priority (&w->prepare, EV_MINPRI);
2489 ev_prepare_start (EV_A_ &w->prepare); 3321 ev_prepare_start (EV_A_ &w->prepare);
2490 3322
3323 ev_fork_init (&w->fork, embed_fork_cb);
3324 ev_fork_start (EV_A_ &w->fork);
3325
2491 /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ 3326 /*ev_idle_init (&w->idle, e,bed_idle_cb);*/
2492 3327
2493 ev_start (EV_A_ (W)w, 1); 3328 ev_start (EV_A_ (W)w, 1);
3329
3330 EV_FREQUENT_CHECK;
2494} 3331}
2495 3332
2496void 3333void
2497ev_embed_stop (EV_P_ ev_embed *w) 3334ev_embed_stop (EV_P_ ev_embed *w)
2498{ 3335{
2499 clear_pending (EV_A_ (W)w); 3336 clear_pending (EV_A_ (W)w);
2500 if (expect_false (!ev_is_active (w))) 3337 if (expect_false (!ev_is_active (w)))
2501 return; 3338 return;
2502 3339
3340 EV_FREQUENT_CHECK;
3341
2503 ev_io_stop (EV_A_ &w->io); 3342 ev_io_stop (EV_A_ &w->io);
2504 ev_prepare_stop (EV_A_ &w->prepare); 3343 ev_prepare_stop (EV_A_ &w->prepare);
3344 ev_fork_stop (EV_A_ &w->fork);
2505 3345
2506 ev_stop (EV_A_ (W)w); 3346 EV_FREQUENT_CHECK;
2507} 3347}
2508#endif 3348#endif
2509 3349
2510#if EV_FORK_ENABLE 3350#if EV_FORK_ENABLE
2511void 3351void
2512ev_fork_start (EV_P_ ev_fork *w) 3352ev_fork_start (EV_P_ ev_fork *w)
2513{ 3353{
2514 if (expect_false (ev_is_active (w))) 3354 if (expect_false (ev_is_active (w)))
2515 return; 3355 return;
3356
3357 EV_FREQUENT_CHECK;
2516 3358
2517 ev_start (EV_A_ (W)w, ++forkcnt); 3359 ev_start (EV_A_ (W)w, ++forkcnt);
2518 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); 3360 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);
2519 forks [forkcnt - 1] = w; 3361 forks [forkcnt - 1] = w;
3362
3363 EV_FREQUENT_CHECK;
2520} 3364}
2521 3365
2522void 3366void
2523ev_fork_stop (EV_P_ ev_fork *w) 3367ev_fork_stop (EV_P_ ev_fork *w)
2524{ 3368{
2525 clear_pending (EV_A_ (W)w); 3369 clear_pending (EV_A_ (W)w);
2526 if (expect_false (!ev_is_active (w))) 3370 if (expect_false (!ev_is_active (w)))
2527 return; 3371 return;
2528 3372
3373 EV_FREQUENT_CHECK;
3374
2529 { 3375 {
2530 int active = ((W)w)->active; 3376 int active = ev_active (w);
3377
2531 forks [active - 1] = forks [--forkcnt]; 3378 forks [active - 1] = forks [--forkcnt];
2532 ((W)forks [active - 1])->active = active; 3379 ev_active (forks [active - 1]) = active;
2533 } 3380 }
2534 3381
2535 ev_stop (EV_A_ (W)w); 3382 ev_stop (EV_A_ (W)w);
3383
3384 EV_FREQUENT_CHECK;
2536} 3385}
2537#endif 3386#endif
2538 3387
2539#if EV_ASYNC_ENABLE 3388#if EV_ASYNC_ENABLE
2540void 3389void
… …
2542{ 3391{
2543 if (expect_false (ev_is_active (w))) 3392 if (expect_false (ev_is_active (w)))
2544 return; 3393 return;
2545 3394
2546 evpipe_init (EV_A); 3395 evpipe_init (EV_A);
3396
3397 EV_FREQUENT_CHECK;
2547 3398
2548 ev_start (EV_A_ (W)w, ++asynccnt); 3399 ev_start (EV_A_ (W)w, ++asynccnt);
2549 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); 3400 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2);
2550 asyncs [asynccnt - 1] = w; 3401 asyncs [asynccnt - 1] = w;
3402
3403 EV_FREQUENT_CHECK;
2551} 3404}
2552 3405
2553void 3406void
2554ev_async_stop (EV_P_ ev_async *w) 3407ev_async_stop (EV_P_ ev_async *w)
2555{ 3408{
2556 clear_pending (EV_A_ (W)w); 3409 clear_pending (EV_A_ (W)w);
2557 if (expect_false (!ev_is_active (w))) 3410 if (expect_false (!ev_is_active (w)))
2558 return; 3411 return;
2559 3412
3413 EV_FREQUENT_CHECK;
3414
2560 { 3415 {
2561 int active = ((W)w)->active; 3416 int active = ev_active (w);
3417
2562 asyncs [active - 1] = asyncs [--asynccnt]; 3418 asyncs [active - 1] = asyncs [--asynccnt];
2563 ((W)asyncs [active - 1])->active = active; 3419 ev_active (asyncs [active - 1]) = active;
2564 } 3420 }
2565 3421
2566 ev_stop (EV_A_ (W)w); 3422 ev_stop (EV_A_ (W)w);
3423
3424 EV_FREQUENT_CHECK;
2567} 3425}
2568 3426
2569void 3427void
2570ev_async_send (EV_P_ ev_async *w) 3428ev_async_send (EV_P_ ev_async *w)
2571{ 3429{
2572 w->sent = 1; 3430 w->sent = 1;
2573 evpipe_write (EV_A_ &gotasync); 3431 evpipe_write (EV_A_ &async_pending);
2574} 3432}
2575#endif 3433#endif
2576 3434
2577/*****************************************************************************/ 3435/*****************************************************************************/
2578 3436
… …
2588once_cb (EV_P_ struct ev_once *once, int revents) 3446once_cb (EV_P_ struct ev_once *once, int revents)
2589{ 3447{
2590 void (*cb)(int revents, void *arg) = once->cb; 3448 void (*cb)(int revents, void *arg) = once->cb;
2591 void *arg = once->arg; 3449 void *arg = once->arg;
2592 3450
2593 ev_io_stop (EV_A_ &once->io); 3451 ev_io_stop (EV_A_ &once->io);
2594 ev_timer_stop (EV_A_ &once->to); 3452 ev_timer_stop (EV_A_ &once->to);
2595 ev_free (once); 3453 ev_free (once);
2596 3454
2597 cb (revents, arg); 3455 cb (revents, arg);
2598} 3456}
2599 3457
2600static void 3458static void
2601once_cb_io (EV_P_ ev_io *w, int revents) 3459once_cb_io (EV_P_ ev_io *w, int revents)
2602{ 3460{
2603 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); 3461 struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io));
3462
3463 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to));
2604} 3464}
2605 3465
2606static void 3466static void
2607once_cb_to (EV_P_ ev_timer *w, int revents) 3467once_cb_to (EV_P_ ev_timer *w, int revents)
2608{ 3468{
2609 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); 3469 struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to));
3470
3471 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
2610} 3472}
2611 3473
2612void 3474void
2613ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 3475ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)
2614{ 3476{
… …
2636 ev_timer_set (&once->to, timeout, 0.); 3498 ev_timer_set (&once->to, timeout, 0.);
2637 ev_timer_start (EV_A_ &once->to); 3499 ev_timer_start (EV_A_ &once->to);
2638 } 3500 }
2639} 3501}
2640 3502
3503/*****************************************************************************/
3504
3505#if EV_WALK_ENABLE
3506void
3507ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))
3508{
3509 int i, j;
3510 ev_watcher_list *wl, *wn;
3511
3512 if (types & (EV_IO | EV_EMBED))
3513 for (i = 0; i < anfdmax; ++i)
3514 for (wl = anfds [i].head; wl; )
3515 {
3516 wn = wl->next;
3517
3518#if EV_EMBED_ENABLE
3519 if (ev_cb ((ev_io *)wl) == embed_io_cb)
3520 {
3521 if (types & EV_EMBED)
3522 cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io));
3523 }
3524 else
3525#endif
3526#if EV_USE_INOTIFY
3527 if (ev_cb ((ev_io *)wl) == infy_cb)
3528 ;
3529 else
3530#endif
3531 if ((ev_io *)wl != &pipe_w)
3532 if (types & EV_IO)
3533 cb (EV_A_ EV_IO, wl);
3534
3535 wl = wn;
3536 }
3537
3538 if (types & (EV_TIMER | EV_STAT))
3539 for (i = timercnt + HEAP0; i-- > HEAP0; )
3540#if EV_STAT_ENABLE
3541 /*TODO: timer is not always active*/
3542 if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb)
3543 {
3544 if (types & EV_STAT)
3545 cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer));
3546 }
3547 else
3548#endif
3549 if (types & EV_TIMER)
3550 cb (EV_A_ EV_TIMER, ANHE_w (timers [i]));
3551
3552#if EV_PERIODIC_ENABLE
3553 if (types & EV_PERIODIC)
3554 for (i = periodiccnt + HEAP0; i-- > HEAP0; )
3555 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3556#endif
3557
3558#if EV_IDLE_ENABLE
3559 if (types & EV_IDLE)
3560 for (j = NUMPRI; i--; )
3561 for (i = idlecnt [j]; i--; )
3562 cb (EV_A_ EV_IDLE, idles [j][i]);
3563#endif
3564
3565#if EV_FORK_ENABLE
3566 if (types & EV_FORK)
3567 for (i = forkcnt; i--; )
3568 if (ev_cb (forks [i]) != embed_fork_cb)
3569 cb (EV_A_ EV_FORK, forks [i]);
3570#endif
3571
3572#if EV_ASYNC_ENABLE
3573 if (types & EV_ASYNC)
3574 for (i = asynccnt; i--; )
3575 cb (EV_A_ EV_ASYNC, asyncs [i]);
3576#endif
3577
3578 if (types & EV_PREPARE)
3579 for (i = preparecnt; i--; )
3580#if EV_EMBED_ENABLE
3581 if (ev_cb (prepares [i]) != embed_prepare_cb)
3582#endif
3583 cb (EV_A_ EV_PREPARE, prepares [i]);
3584
3585 if (types & EV_CHECK)
3586 for (i = checkcnt; i--; )
3587 cb (EV_A_ EV_CHECK, checks [i]);
3588
3589 if (types & EV_SIGNAL)
3590 for (i = 0; i < EV_NSIG - 1; ++i)
3591 for (wl = signals [i].head; wl; )
3592 {
3593 wn = wl->next;
3594 cb (EV_A_ EV_SIGNAL, wl);
3595 wl = wn;
3596 }
3597
3598 if (types & EV_CHILD)
3599 for (i = EV_PID_HASHSIZE; i--; )
3600 for (wl = childs [i]; wl; )
3601 {
3602 wn = wl->next;
3603 cb (EV_A_ EV_CHILD, wl);
3604 wl = wn;
3605 }
3606/* EV_STAT 0x00001000 /* stat data changed */
3607/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3608}
3609#endif
3610
2641#if EV_MULTIPLICITY 3611#if EV_MULTIPLICITY
2642 #include "ev_wrap.h" 3612 #include "ev_wrap.h"
2643#endif 3613#endif
2644 3614
2645#ifdef __cplusplus 3615#ifdef __cplusplus

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