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Comparing libev/ev.c (file contents):
Revision 1.259 by root, Mon Sep 8 13:14:23 2008 UTC vs.
Revision 1.307 by root, Sun Jul 19 07:20:41 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
… …
164# endif 186# endif
165#endif 187#endif
166 188
167/* 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 */
168 190
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
169#ifndef EV_USE_MONOTONIC 226#ifndef EV_USE_MONOTONIC
170# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 227# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0
171# define EV_USE_MONOTONIC 1 228# define EV_USE_MONOTONIC 1
172# else 229# else
173# define EV_USE_MONOTONIC 0 230# define EV_USE_MONOTONIC 0
174# endif 231# endif
175#endif 232#endif
176 233
177#ifndef EV_USE_REALTIME 234#ifndef EV_USE_REALTIME
178# define EV_USE_REALTIME 0 235# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
179#endif 236#endif
180 237
181#ifndef EV_USE_NANOSLEEP 238#ifndef EV_USE_NANOSLEEP
182# if _POSIX_C_SOURCE >= 199309L 239# if _POSIX_C_SOURCE >= 199309L
183# define EV_USE_NANOSLEEP 1 240# define EV_USE_NANOSLEEP 1
… …
244# else 301# else
245# define EV_USE_EVENTFD 0 302# define EV_USE_EVENTFD 0
246# endif 303# endif
247#endif 304#endif
248 305
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
249#if 0 /* debugging */ 314#if 0 /* debugging */
250# define EV_VERIFY 3 315# define EV_VERIFY 3
251# define EV_USE_4HEAP 1 316# define EV_USE_4HEAP 1
252# define EV_HEAP_CACHE_AT 1 317# define EV_HEAP_CACHE_AT 1
253#endif 318#endif
… …
262 327
263#ifndef EV_HEAP_CACHE_AT 328#ifndef EV_HEAP_CACHE_AT
264# define EV_HEAP_CACHE_AT !EV_MINIMAL 329# define EV_HEAP_CACHE_AT !EV_MINIMAL
265#endif 330#endif
266 331
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
267/* 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 */
268 347
269#ifndef CLOCK_MONOTONIC 348#ifndef CLOCK_MONOTONIC
270# undef EV_USE_MONOTONIC 349# undef EV_USE_MONOTONIC
271# define EV_USE_MONOTONIC 0 350# define EV_USE_MONOTONIC 0
… …
286# include <sys/select.h> 365# include <sys/select.h>
287# endif 366# endif
288#endif 367#endif
289 368
290#if EV_USE_INOTIFY 369#if EV_USE_INOTIFY
370# include <sys/utsname.h>
371# include <sys/statfs.h>
291# 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
292#endif 378#endif
293 379
294#if EV_SELECT_IS_WINSOCKET 380#if EV_SELECT_IS_WINSOCKET
295# include <winsock.h> 381# include <winsock.h>
296#endif 382#endif
297 383
298#if EV_USE_EVENTFD 384#if EV_USE_EVENTFD
299/* 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 */
300# include <stdint.h> 386# include <stdint.h>
387# ifndef EFD_NONBLOCK
388# define EFD_NONBLOCK O_NONBLOCK
389# endif
390# ifndef EFD_CLOEXEC
391# define EFD_CLOEXEC O_CLOEXEC
392# endif
301# ifdef __cplusplus 393# ifdef __cplusplus
302extern "C" { 394extern "C" {
303# endif 395# endif
304int eventfd (unsigned int initval, int flags); 396int eventfd (unsigned int initval, int flags);
305# ifdef __cplusplus 397# ifdef __cplusplus
306} 398}
307# endif 399# endif
400#endif
401
402#if EV_USE_SIGNALFD
403# include <sys/signalfd.h>
308#endif 404#endif
309 405
310/**/ 406/**/
311 407
312#if EV_VERIFY >= 3 408#if EV_VERIFY >= 3
… …
348# define inline_speed static noinline 444# define inline_speed static noinline
349#else 445#else
350# define inline_speed static inline 446# define inline_speed static inline
351#endif 447#endif
352 448
353#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 449#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
450
451#if EV_MINPRI == EV_MAXPRI
452# define ABSPRI(w) (((W)w), 0)
453#else
354#define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 454# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
455#endif
355 456
356#define EMPTY /* required for microsofts broken pseudo-c compiler */ 457#define EMPTY /* required for microsofts broken pseudo-c compiler */
357#define EMPTY2(a,b) /* used to suppress some warnings */ 458#define EMPTY2(a,b) /* used to suppress some warnings */
358 459
359typedef ev_watcher *W; 460typedef ev_watcher *W;
… …
361typedef ev_watcher_time *WT; 462typedef ev_watcher_time *WT;
362 463
363#define ev_active(w) ((W)(w))->active 464#define ev_active(w) ((W)(w))->active
364#define ev_at(w) ((WT)(w))->at 465#define ev_at(w) ((WT)(w))->at
365 466
366#if EV_USE_MONOTONIC 467#if EV_USE_REALTIME
367/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 468/* sig_atomic_t is used to avoid per-thread variables or locking but still */
368/* giving it a reasonably high chance of working on typical architetcures */ 469/* giving it a reasonably high chance of working on typical architetcures */
470static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
471#endif
472
473#if EV_USE_MONOTONIC
369static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 474static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
370#endif 475#endif
371 476
372#ifdef _WIN32 477#ifdef _WIN32
373# include "ev_win32.c" 478# include "ev_win32.c"
… …
382{ 487{
383 syserr_cb = cb; 488 syserr_cb = cb;
384} 489}
385 490
386static void noinline 491static void noinline
387syserr (const char *msg) 492ev_syserr (const char *msg)
388{ 493{
389 if (!msg) 494 if (!msg)
390 msg = "(libev) system error"; 495 msg = "(libev) system error";
391 496
392 if (syserr_cb) 497 if (syserr_cb)
… …
438#define ev_malloc(size) ev_realloc (0, (size)) 543#define ev_malloc(size) ev_realloc (0, (size))
439#define ev_free(ptr) ev_realloc ((ptr), 0) 544#define ev_free(ptr) ev_realloc ((ptr), 0)
440 545
441/*****************************************************************************/ 546/*****************************************************************************/
442 547
548/* set in reify when reification needed */
549#define EV_ANFD_REIFY 1
550
551/* file descriptor info structure */
443typedef struct 552typedef struct
444{ 553{
445 WL head; 554 WL head;
446 unsigned char events; 555 unsigned char events; /* the events watched for */
556 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
557 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
447 unsigned char reify; 558 unsigned char unused;
559#if EV_USE_EPOLL
560 unsigned int egen; /* generation counter to counter epoll bugs */
561#endif
448#if EV_SELECT_IS_WINSOCKET 562#if EV_SELECT_IS_WINSOCKET
449 SOCKET handle; 563 SOCKET handle;
450#endif 564#endif
451} ANFD; 565} ANFD;
452 566
567/* stores the pending event set for a given watcher */
453typedef struct 568typedef struct
454{ 569{
455 W w; 570 W w;
456 int events; 571 int events; /* the pending event set for the given watcher */
457} ANPENDING; 572} ANPENDING;
458 573
459#if EV_USE_INOTIFY 574#if EV_USE_INOTIFY
460/* hash table entry per inotify-id */ 575/* hash table entry per inotify-id */
461typedef struct 576typedef struct
… …
464} ANFS; 579} ANFS;
465#endif 580#endif
466 581
467/* Heap Entry */ 582/* Heap Entry */
468#if EV_HEAP_CACHE_AT 583#if EV_HEAP_CACHE_AT
584 /* a heap element */
469 typedef struct { 585 typedef struct {
470 ev_tstamp at; 586 ev_tstamp at;
471 WT w; 587 WT w;
472 } ANHE; 588 } ANHE;
473 589
474 #define ANHE_w(he) (he).w /* access watcher, read-write */ 590 #define ANHE_w(he) (he).w /* access watcher, read-write */
475 #define ANHE_at(he) (he).at /* access cached at, read-only */ 591 #define ANHE_at(he) (he).at /* access cached at, read-only */
476 #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ 592 #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */
477#else 593#else
594 /* a heap element */
478 typedef WT ANHE; 595 typedef WT ANHE;
479 596
480 #define ANHE_w(he) (he) 597 #define ANHE_w(he) (he)
481 #define ANHE_at(he) (he)->at 598 #define ANHE_at(he) (he)->at
482 #define ANHE_at_cache(he) 599 #define ANHE_at_cache(he)
… …
506 623
507 static int ev_default_loop_ptr; 624 static int ev_default_loop_ptr;
508 625
509#endif 626#endif
510 627
628#if EV_MINIMAL < 2
629# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
630# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
631# define EV_INVOKE_PENDING invoke_cb (EV_A)
632#else
633# define EV_RELEASE_CB (void)0
634# define EV_ACQUIRE_CB (void)0
635# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
636#endif
637
638#define EVUNLOOP_RECURSE 0x80
639
511/*****************************************************************************/ 640/*****************************************************************************/
512 641
642#ifndef EV_HAVE_EV_TIME
513ev_tstamp 643ev_tstamp
514ev_time (void) 644ev_time (void)
515{ 645{
516#if EV_USE_REALTIME 646#if EV_USE_REALTIME
647 if (expect_true (have_realtime))
648 {
517 struct timespec ts; 649 struct timespec ts;
518 clock_gettime (CLOCK_REALTIME, &ts); 650 clock_gettime (CLOCK_REALTIME, &ts);
519 return ts.tv_sec + ts.tv_nsec * 1e-9; 651 return ts.tv_sec + ts.tv_nsec * 1e-9;
520#else 652 }
653#endif
654
521 struct timeval tv; 655 struct timeval tv;
522 gettimeofday (&tv, 0); 656 gettimeofday (&tv, 0);
523 return tv.tv_sec + tv.tv_usec * 1e-6; 657 return tv.tv_sec + tv.tv_usec * 1e-6;
524#endif
525} 658}
659#endif
526 660
527ev_tstamp inline_size 661inline_size ev_tstamp
528get_clock (void) 662get_clock (void)
529{ 663{
530#if EV_USE_MONOTONIC 664#if EV_USE_MONOTONIC
531 if (expect_true (have_monotonic)) 665 if (expect_true (have_monotonic))
532 { 666 {
… …
566 700
567 tv.tv_sec = (time_t)delay; 701 tv.tv_sec = (time_t)delay;
568 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); 702 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
569 703
570 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 704 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
571 /* somehting nto guaranteed by newer posix versions, but guaranteed */ 705 /* something not guaranteed by newer posix versions, but guaranteed */
572 /* by older ones */ 706 /* by older ones */
573 select (0, 0, 0, 0, &tv); 707 select (0, 0, 0, 0, &tv);
574#endif 708#endif
575 } 709 }
576} 710}
577 711
578/*****************************************************************************/ 712/*****************************************************************************/
579 713
580#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ 714#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
581 715
582int inline_size 716/* find a suitable new size for the given array, */
717/* hopefully by rounding to a ncie-to-malloc size */
718inline_size int
583array_nextsize (int elem, int cur, int cnt) 719array_nextsize (int elem, int cur, int cnt)
584{ 720{
585 int ncur = cur + 1; 721 int ncur = cur + 1;
586 722
587 do 723 do
… …
604array_realloc (int elem, void *base, int *cur, int cnt) 740array_realloc (int elem, void *base, int *cur, int cnt)
605{ 741{
606 *cur = array_nextsize (elem, *cur, cnt); 742 *cur = array_nextsize (elem, *cur, cnt);
607 return ev_realloc (base, elem * *cur); 743 return ev_realloc (base, elem * *cur);
608} 744}
745
746#define array_init_zero(base,count) \
747 memset ((void *)(base), 0, sizeof (*(base)) * (count))
609 748
610#define array_needsize(type,base,cur,cnt,init) \ 749#define array_needsize(type,base,cur,cnt,init) \
611 if (expect_false ((cnt) > (cur))) \ 750 if (expect_false ((cnt) > (cur))) \
612 { \ 751 { \
613 int ocur_ = (cur); \ 752 int ocur_ = (cur); \
… …
625 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ 764 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
626 } 765 }
627#endif 766#endif
628 767
629#define array_free(stem, idx) \ 768#define array_free(stem, idx) \
630 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; 769 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
631 770
632/*****************************************************************************/ 771/*****************************************************************************/
772
773/* dummy callback for pending events */
774static void noinline
775pendingcb (EV_P_ ev_prepare *w, int revents)
776{
777}
633 778
634void noinline 779void noinline
635ev_feed_event (EV_P_ void *w, int revents) 780ev_feed_event (EV_P_ void *w, int revents)
636{ 781{
637 W w_ = (W)w; 782 W w_ = (W)w;
… …
646 pendings [pri][w_->pending - 1].w = w_; 791 pendings [pri][w_->pending - 1].w = w_;
647 pendings [pri][w_->pending - 1].events = revents; 792 pendings [pri][w_->pending - 1].events = revents;
648 } 793 }
649} 794}
650 795
651void inline_speed 796inline_speed void
797feed_reverse (EV_P_ W w)
798{
799 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2);
800 rfeeds [rfeedcnt++] = w;
801}
802
803inline_size void
804feed_reverse_done (EV_P_ int revents)
805{
806 do
807 ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents);
808 while (rfeedcnt);
809}
810
811inline_speed void
652queue_events (EV_P_ W *events, int eventcnt, int type) 812queue_events (EV_P_ W *events, int eventcnt, int type)
653{ 813{
654 int i; 814 int i;
655 815
656 for (i = 0; i < eventcnt; ++i) 816 for (i = 0; i < eventcnt; ++i)
657 ev_feed_event (EV_A_ events [i], type); 817 ev_feed_event (EV_A_ events [i], type);
658} 818}
659 819
660/*****************************************************************************/ 820/*****************************************************************************/
661 821
662void inline_size 822inline_speed void
663anfds_init (ANFD *base, int count)
664{
665 while (count--)
666 {
667 base->head = 0;
668 base->events = EV_NONE;
669 base->reify = 0;
670
671 ++base;
672 }
673}
674
675void inline_speed
676fd_event (EV_P_ int fd, int revents) 823fd_event_nc (EV_P_ int fd, int revents)
677{ 824{
678 ANFD *anfd = anfds + fd; 825 ANFD *anfd = anfds + fd;
679 ev_io *w; 826 ev_io *w;
680 827
681 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 828 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
685 if (ev) 832 if (ev)
686 ev_feed_event (EV_A_ (W)w, ev); 833 ev_feed_event (EV_A_ (W)w, ev);
687 } 834 }
688} 835}
689 836
837/* do not submit kernel events for fds that have reify set */
838/* because that means they changed while we were polling for new events */
839inline_speed void
840fd_event (EV_P_ int fd, int revents)
841{
842 ANFD *anfd = anfds + fd;
843
844 if (expect_true (!anfd->reify))
845 fd_event_nc (EV_A_ fd, revents);
846}
847
690void 848void
691ev_feed_fd_event (EV_P_ int fd, int revents) 849ev_feed_fd_event (EV_P_ int fd, int revents)
692{ 850{
693 if (fd >= 0 && fd < anfdmax) 851 if (fd >= 0 && fd < anfdmax)
694 fd_event (EV_A_ fd, revents); 852 fd_event_nc (EV_A_ fd, revents);
695} 853}
696 854
697void inline_size 855/* make sure the external fd watch events are in-sync */
856/* with the kernel/libev internal state */
857inline_size void
698fd_reify (EV_P) 858fd_reify (EV_P)
699{ 859{
700 int i; 860 int i;
701 861
702 for (i = 0; i < fdchangecnt; ++i) 862 for (i = 0; i < fdchangecnt; ++i)
… …
717 #ifdef EV_FD_TO_WIN32_HANDLE 877 #ifdef EV_FD_TO_WIN32_HANDLE
718 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 878 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
719 #else 879 #else
720 anfd->handle = _get_osfhandle (fd); 880 anfd->handle = _get_osfhandle (fd);
721 #endif 881 #endif
722 assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 882 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
723 } 883 }
724#endif 884#endif
725 885
726 { 886 {
727 unsigned char o_events = anfd->events; 887 unsigned char o_events = anfd->events;
728 unsigned char o_reify = anfd->reify; 888 unsigned char o_reify = anfd->reify;
729 889
730 anfd->reify = 0; 890 anfd->reify = 0;
731 anfd->events = events; 891 anfd->events = events;
732 892
733 if (o_events != events || o_reify & EV_IOFDSET) 893 if (o_events != events || o_reify & EV__IOFDSET)
734 backend_modify (EV_A_ fd, o_events, events); 894 backend_modify (EV_A_ fd, o_events, events);
735 } 895 }
736 } 896 }
737 897
738 fdchangecnt = 0; 898 fdchangecnt = 0;
739} 899}
740 900
741void inline_size 901/* something about the given fd changed */
902inline_size void
742fd_change (EV_P_ int fd, int flags) 903fd_change (EV_P_ int fd, int flags)
743{ 904{
744 unsigned char reify = anfds [fd].reify; 905 unsigned char reify = anfds [fd].reify;
745 anfds [fd].reify |= flags; 906 anfds [fd].reify |= flags;
746 907
… …
750 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 911 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
751 fdchanges [fdchangecnt - 1] = fd; 912 fdchanges [fdchangecnt - 1] = fd;
752 } 913 }
753} 914}
754 915
755void inline_speed 916/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
917inline_speed void
756fd_kill (EV_P_ int fd) 918fd_kill (EV_P_ int fd)
757{ 919{
758 ev_io *w; 920 ev_io *w;
759 921
760 while ((w = (ev_io *)anfds [fd].head)) 922 while ((w = (ev_io *)anfds [fd].head))
… …
762 ev_io_stop (EV_A_ w); 924 ev_io_stop (EV_A_ w);
763 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 925 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
764 } 926 }
765} 927}
766 928
767int inline_size 929/* check whether the given fd is atcually valid, for error recovery */
930inline_size int
768fd_valid (int fd) 931fd_valid (int fd)
769{ 932{
770#ifdef _WIN32 933#ifdef _WIN32
771 return _get_osfhandle (fd) != -1; 934 return _get_osfhandle (fd) != -1;
772#else 935#else
… …
794 957
795 for (fd = anfdmax; fd--; ) 958 for (fd = anfdmax; fd--; )
796 if (anfds [fd].events) 959 if (anfds [fd].events)
797 { 960 {
798 fd_kill (EV_A_ fd); 961 fd_kill (EV_A_ fd);
799 return; 962 break;
800 } 963 }
801} 964}
802 965
803/* usually called after fork if backend needs to re-arm all fds from scratch */ 966/* usually called after fork if backend needs to re-arm all fds from scratch */
804static void noinline 967static void noinline
… …
808 971
809 for (fd = 0; fd < anfdmax; ++fd) 972 for (fd = 0; fd < anfdmax; ++fd)
810 if (anfds [fd].events) 973 if (anfds [fd].events)
811 { 974 {
812 anfds [fd].events = 0; 975 anfds [fd].events = 0;
976 anfds [fd].emask = 0;
813 fd_change (EV_A_ fd, EV_IOFDSET | 1); 977 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
814 } 978 }
815} 979}
816 980
817/*****************************************************************************/ 981/*****************************************************************************/
818 982
… …
834#define HEAP0 (DHEAP - 1) /* index of first element in heap */ 998#define HEAP0 (DHEAP - 1) /* index of first element in heap */
835#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) 999#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0)
836#define UPHEAP_DONE(p,k) ((p) == (k)) 1000#define UPHEAP_DONE(p,k) ((p) == (k))
837 1001
838/* away from the root */ 1002/* away from the root */
839void inline_speed 1003inline_speed void
840downheap (ANHE *heap, int N, int k) 1004downheap (ANHE *heap, int N, int k)
841{ 1005{
842 ANHE he = heap [k]; 1006 ANHE he = heap [k];
843 ANHE *E = heap + N + HEAP0; 1007 ANHE *E = heap + N + HEAP0;
844 1008
… …
884#define HEAP0 1 1048#define HEAP0 1
885#define HPARENT(k) ((k) >> 1) 1049#define HPARENT(k) ((k) >> 1)
886#define UPHEAP_DONE(p,k) (!(p)) 1050#define UPHEAP_DONE(p,k) (!(p))
887 1051
888/* away from the root */ 1052/* away from the root */
889void inline_speed 1053inline_speed void
890downheap (ANHE *heap, int N, int k) 1054downheap (ANHE *heap, int N, int k)
891{ 1055{
892 ANHE he = heap [k]; 1056 ANHE he = heap [k];
893 1057
894 for (;;) 1058 for (;;)
… …
914 ev_active (ANHE_w (he)) = k; 1078 ev_active (ANHE_w (he)) = k;
915} 1079}
916#endif 1080#endif
917 1081
918/* towards the root */ 1082/* towards the root */
919void inline_speed 1083inline_speed void
920upheap (ANHE *heap, int k) 1084upheap (ANHE *heap, int k)
921{ 1085{
922 ANHE he = heap [k]; 1086 ANHE he = heap [k];
923 1087
924 for (;;) 1088 for (;;)
… …
935 1099
936 heap [k] = he; 1100 heap [k] = he;
937 ev_active (ANHE_w (he)) = k; 1101 ev_active (ANHE_w (he)) = k;
938} 1102}
939 1103
940void inline_size 1104/* move an element suitably so it is in a correct place */
1105inline_size void
941adjustheap (ANHE *heap, int N, int k) 1106adjustheap (ANHE *heap, int N, int k)
942{ 1107{
943 if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) 1108 if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k]))
944 upheap (heap, k); 1109 upheap (heap, k);
945 else 1110 else
946 downheap (heap, N, k); 1111 downheap (heap, N, k);
947} 1112}
948 1113
949/* rebuild the heap: this function is used only once and executed rarely */ 1114/* rebuild the heap: this function is used only once and executed rarely */
950void inline_size 1115inline_size void
951reheap (ANHE *heap, int N) 1116reheap (ANHE *heap, int N)
952{ 1117{
953 int i; 1118 int i;
954 1119
955 /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ 1120 /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */
… …
958 upheap (heap, i + HEAP0); 1123 upheap (heap, i + HEAP0);
959} 1124}
960 1125
961/*****************************************************************************/ 1126/*****************************************************************************/
962 1127
1128/* associate signal watchers to a signal signal */
963typedef struct 1129typedef struct
964{ 1130{
1131 EV_ATOMIC_T pending;
1132#if EV_MULTIPLICITY
1133 EV_P;
1134#endif
965 WL head; 1135 WL head;
966 EV_ATOMIC_T gotsig;
967} ANSIG; 1136} ANSIG;
968 1137
969static ANSIG *signals; 1138static ANSIG signals [EV_NSIG - 1];
970static int signalmax;
971
972static EV_ATOMIC_T gotsig;
973
974void inline_size
975signals_init (ANSIG *base, int count)
976{
977 while (count--)
978 {
979 base->head = 0;
980 base->gotsig = 0;
981
982 ++base;
983 }
984}
985 1139
986/*****************************************************************************/ 1140/*****************************************************************************/
987 1141
988void inline_speed 1142/* used to prepare libev internal fd's */
1143/* this is not fork-safe */
1144inline_speed void
989fd_intern (int fd) 1145fd_intern (int fd)
990{ 1146{
991#ifdef _WIN32 1147#ifdef _WIN32
992 unsigned long arg = 1; 1148 unsigned long arg = 1;
993 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); 1149 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
… …
998} 1154}
999 1155
1000static void noinline 1156static void noinline
1001evpipe_init (EV_P) 1157evpipe_init (EV_P)
1002{ 1158{
1003 if (!ev_is_active (&pipeev)) 1159 if (!ev_is_active (&pipe_w))
1004 { 1160 {
1005#if EV_USE_EVENTFD 1161#if EV_USE_EVENTFD
1162 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1163 if (evfd < 0 && errno == EINVAL)
1006 if ((evfd = eventfd (0, 0)) >= 0) 1164 evfd = eventfd (0, 0);
1165
1166 if (evfd >= 0)
1007 { 1167 {
1008 evpipe [0] = -1; 1168 evpipe [0] = -1;
1009 fd_intern (evfd); 1169 fd_intern (evfd); /* doing it twice doesn't hurt */
1010 ev_io_set (&pipeev, evfd, EV_READ); 1170 ev_io_set (&pipe_w, evfd, EV_READ);
1011 } 1171 }
1012 else 1172 else
1013#endif 1173#endif
1014 { 1174 {
1015 while (pipe (evpipe)) 1175 while (pipe (evpipe))
1016 syserr ("(libev) error creating signal/async pipe"); 1176 ev_syserr ("(libev) error creating signal/async pipe");
1017 1177
1018 fd_intern (evpipe [0]); 1178 fd_intern (evpipe [0]);
1019 fd_intern (evpipe [1]); 1179 fd_intern (evpipe [1]);
1020 ev_io_set (&pipeev, evpipe [0], EV_READ); 1180 ev_io_set (&pipe_w, evpipe [0], EV_READ);
1021 } 1181 }
1022 1182
1023 ev_io_start (EV_A_ &pipeev); 1183 ev_io_start (EV_A_ &pipe_w);
1024 ev_unref (EV_A); /* watcher should not keep loop alive */ 1184 ev_unref (EV_A); /* watcher should not keep loop alive */
1025 } 1185 }
1026} 1186}
1027 1187
1028void inline_size 1188inline_size void
1029evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1189evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1030{ 1190{
1031 if (!*flag) 1191 if (!*flag)
1032 { 1192 {
1033 int old_errno = errno; /* save errno because write might clobber it */ 1193 int old_errno = errno; /* save errno because write might clobber it */
… …
1046 1206
1047 errno = old_errno; 1207 errno = old_errno;
1048 } 1208 }
1049} 1209}
1050 1210
1211/* called whenever the libev signal pipe */
1212/* got some events (signal, async) */
1051static void 1213static void
1052pipecb (EV_P_ ev_io *iow, int revents) 1214pipecb (EV_P_ ev_io *iow, int revents)
1053{ 1215{
1216 int i;
1217
1054#if EV_USE_EVENTFD 1218#if EV_USE_EVENTFD
1055 if (evfd >= 0) 1219 if (evfd >= 0)
1056 { 1220 {
1057 uint64_t counter; 1221 uint64_t counter;
1058 read (evfd, &counter, sizeof (uint64_t)); 1222 read (evfd, &counter, sizeof (uint64_t));
… …
1062 { 1226 {
1063 char dummy; 1227 char dummy;
1064 read (evpipe [0], &dummy, 1); 1228 read (evpipe [0], &dummy, 1);
1065 } 1229 }
1066 1230
1067 if (gotsig && ev_is_default_loop (EV_A)) 1231 if (sig_pending)
1068 { 1232 {
1069 int signum; 1233 sig_pending = 0;
1070 gotsig = 0;
1071 1234
1072 for (signum = signalmax; signum--; ) 1235 for (i = EV_NSIG - 1; i--; )
1073 if (signals [signum].gotsig) 1236 if (expect_false (signals [i].pending))
1074 ev_feed_signal_event (EV_A_ signum + 1); 1237 ev_feed_signal_event (EV_A_ i + 1);
1075 } 1238 }
1076 1239
1077#if EV_ASYNC_ENABLE 1240#if EV_ASYNC_ENABLE
1078 if (gotasync) 1241 if (async_pending)
1079 { 1242 {
1080 int i; 1243 async_pending = 0;
1081 gotasync = 0;
1082 1244
1083 for (i = asynccnt; i--; ) 1245 for (i = asynccnt; i--; )
1084 if (asyncs [i]->sent) 1246 if (asyncs [i]->sent)
1085 { 1247 {
1086 asyncs [i]->sent = 0; 1248 asyncs [i]->sent = 0;
… …
1094 1256
1095static void 1257static void
1096ev_sighandler (int signum) 1258ev_sighandler (int signum)
1097{ 1259{
1098#if EV_MULTIPLICITY 1260#if EV_MULTIPLICITY
1099 struct ev_loop *loop = &default_loop_struct; 1261 EV_P = signals [signum - 1].loop;
1100#endif 1262#endif
1101 1263
1102#if _WIN32 1264#if _WIN32
1103 signal (signum, ev_sighandler); 1265 signal (signum, ev_sighandler);
1104#endif 1266#endif
1105 1267
1106 signals [signum - 1].gotsig = 1; 1268 signals [signum - 1].pending = 1;
1107 evpipe_write (EV_A_ &gotsig); 1269 evpipe_write (EV_A_ &sig_pending);
1108} 1270}
1109 1271
1110void noinline 1272void noinline
1111ev_feed_signal_event (EV_P_ int signum) 1273ev_feed_signal_event (EV_P_ int signum)
1112{ 1274{
1113 WL w; 1275 WL w;
1114 1276
1277 if (expect_false (signum <= 0 || signum > EV_NSIG))
1278 return;
1279
1280 --signum;
1281
1115#if EV_MULTIPLICITY 1282#if EV_MULTIPLICITY
1116 assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); 1283 /* it is permissible to try to feed a signal to the wrong loop */
1117#endif 1284 /* or, likely more useful, feeding a signal nobody is waiting for */
1118 1285
1119 --signum; 1286 if (expect_false (signals [signum].loop != EV_A))
1120
1121 if (signum < 0 || signum >= signalmax)
1122 return; 1287 return;
1288#endif
1123 1289
1124 signals [signum].gotsig = 0; 1290 signals [signum].pending = 0;
1125 1291
1126 for (w = signals [signum].head; w; w = w->next) 1292 for (w = signals [signum].head; w; w = w->next)
1127 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 1293 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1128} 1294}
1129 1295
1296#if EV_USE_SIGNALFD
1297static void
1298sigfdcb (EV_P_ ev_io *iow, int revents)
1299{
1300 struct signalfd_siginfo si[2], *sip; /* these structs are big */
1301
1302 for (;;)
1303 {
1304 ssize_t res = read (sigfd, si, sizeof (si));
1305
1306 /* not ISO-C, as res might be -1, but works with SuS */
1307 for (sip = si; (char *)sip < (char *)si + res; ++sip)
1308 ev_feed_signal_event (EV_A_ sip->ssi_signo);
1309
1310 if (res < (ssize_t)sizeof (si))
1311 break;
1312 }
1313}
1314#endif
1315
1130/*****************************************************************************/ 1316/*****************************************************************************/
1131 1317
1132static WL childs [EV_PID_HASHSIZE]; 1318static WL childs [EV_PID_HASHSIZE];
1133 1319
1134#ifndef _WIN32 1320#ifndef _WIN32
… …
1137 1323
1138#ifndef WIFCONTINUED 1324#ifndef WIFCONTINUED
1139# define WIFCONTINUED(status) 0 1325# define WIFCONTINUED(status) 0
1140#endif 1326#endif
1141 1327
1142void inline_speed 1328/* handle a single child status event */
1329inline_speed void
1143child_reap (EV_P_ int chain, int pid, int status) 1330child_reap (EV_P_ int chain, int pid, int status)
1144{ 1331{
1145 ev_child *w; 1332 ev_child *w;
1146 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 1333 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1147 1334
… …
1160 1347
1161#ifndef WCONTINUED 1348#ifndef WCONTINUED
1162# define WCONTINUED 0 1349# define WCONTINUED 0
1163#endif 1350#endif
1164 1351
1352/* called on sigchld etc., calls waitpid */
1165static void 1353static void
1166childcb (EV_P_ ev_signal *sw, int revents) 1354childcb (EV_P_ ev_signal *sw, int revents)
1167{ 1355{
1168 int pid, status; 1356 int pid, status;
1169 1357
… …
1250 /* kqueue is borked on everything but netbsd apparently */ 1438 /* kqueue is borked on everything but netbsd apparently */
1251 /* it usually doesn't work correctly on anything but sockets and pipes */ 1439 /* it usually doesn't work correctly on anything but sockets and pipes */
1252 flags &= ~EVBACKEND_KQUEUE; 1440 flags &= ~EVBACKEND_KQUEUE;
1253#endif 1441#endif
1254#ifdef __APPLE__ 1442#ifdef __APPLE__
1255 // flags &= ~EVBACKEND_KQUEUE; for documentation 1443 /* only select works correctly on that "unix-certified" platform */
1256 flags &= ~EVBACKEND_POLL; 1444 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1445 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1257#endif 1446#endif
1258 1447
1259 return flags; 1448 return flags;
1260} 1449}
1261 1450
… …
1275ev_backend (EV_P) 1464ev_backend (EV_P)
1276{ 1465{
1277 return backend; 1466 return backend;
1278} 1467}
1279 1468
1469#if EV_MINIMAL < 2
1280unsigned int 1470unsigned int
1281ev_loop_count (EV_P) 1471ev_loop_count (EV_P)
1282{ 1472{
1283 return loop_count; 1473 return loop_count;
1284} 1474}
1285 1475
1476unsigned int
1477ev_loop_depth (EV_P)
1478{
1479 return loop_depth;
1480}
1481
1286void 1482void
1287ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 1483ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
1288{ 1484{
1289 io_blocktime = interval; 1485 io_blocktime = interval;
1290} 1486}
… …
1293ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 1489ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
1294{ 1490{
1295 timeout_blocktime = interval; 1491 timeout_blocktime = interval;
1296} 1492}
1297 1493
1494void
1495ev_set_userdata (EV_P_ void *data)
1496{
1497 userdata = data;
1498}
1499
1500void *
1501ev_userdata (EV_P)
1502{
1503 return userdata;
1504}
1505
1506void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))
1507{
1508 invoke_cb = invoke_pending_cb;
1509}
1510
1511void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))
1512{
1513 release_cb = release;
1514 acquire_cb = acquire;
1515}
1516#endif
1517
1518/* initialise a loop structure, must be zero-initialised */
1298static void noinline 1519static void noinline
1299loop_init (EV_P_ unsigned int flags) 1520loop_init (EV_P_ unsigned int flags)
1300{ 1521{
1301 if (!backend) 1522 if (!backend)
1302 { 1523 {
1524#if EV_USE_REALTIME
1525 if (!have_realtime)
1526 {
1527 struct timespec ts;
1528
1529 if (!clock_gettime (CLOCK_REALTIME, &ts))
1530 have_realtime = 1;
1531 }
1532#endif
1533
1303#if EV_USE_MONOTONIC 1534#if EV_USE_MONOTONIC
1535 if (!have_monotonic)
1304 { 1536 {
1305 struct timespec ts; 1537 struct timespec ts;
1538
1306 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 1539 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1307 have_monotonic = 1; 1540 have_monotonic = 1;
1308 } 1541 }
1309#endif 1542#endif
1543
1544 /* pid check not overridable via env */
1545#ifndef _WIN32
1546 if (flags & EVFLAG_FORKCHECK)
1547 curpid = getpid ();
1548#endif
1549
1550 if (!(flags & EVFLAG_NOENV)
1551 && !enable_secure ()
1552 && getenv ("LIBEV_FLAGS"))
1553 flags = atoi (getenv ("LIBEV_FLAGS"));
1310 1554
1311 ev_rt_now = ev_time (); 1555 ev_rt_now = ev_time ();
1312 mn_now = get_clock (); 1556 mn_now = get_clock ();
1313 now_floor = mn_now; 1557 now_floor = mn_now;
1314 rtmn_diff = ev_rt_now - mn_now; 1558 rtmn_diff = ev_rt_now - mn_now;
1559#if EV_MINIMAL < 2
1560 invoke_cb = ev_invoke_pending;
1561#endif
1315 1562
1316 io_blocktime = 0.; 1563 io_blocktime = 0.;
1317 timeout_blocktime = 0.; 1564 timeout_blocktime = 0.;
1318 backend = 0; 1565 backend = 0;
1319 backend_fd = -1; 1566 backend_fd = -1;
1320 gotasync = 0; 1567 sig_pending = 0;
1568#if EV_ASYNC_ENABLE
1569 async_pending = 0;
1570#endif
1321#if EV_USE_INOTIFY 1571#if EV_USE_INOTIFY
1322 fs_fd = -2; 1572 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1323#endif 1573#endif
1324 1574#if EV_USE_SIGNALFD
1325 /* pid check not overridable via env */ 1575 sigfd = flags & EVFLAG_NOSIGFD ? -1 : -2;
1326#ifndef _WIN32
1327 if (flags & EVFLAG_FORKCHECK)
1328 curpid = getpid ();
1329#endif 1576#endif
1330
1331 if (!(flags & EVFLAG_NOENV)
1332 && !enable_secure ()
1333 && getenv ("LIBEV_FLAGS"))
1334 flags = atoi (getenv ("LIBEV_FLAGS"));
1335 1577
1336 if (!(flags & 0x0000ffffU)) 1578 if (!(flags & 0x0000ffffU))
1337 flags |= ev_recommended_backends (); 1579 flags |= ev_recommended_backends ();
1338 1580
1339#if EV_USE_PORT 1581#if EV_USE_PORT
… …
1350#endif 1592#endif
1351#if EV_USE_SELECT 1593#if EV_USE_SELECT
1352 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 1594 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1353#endif 1595#endif
1354 1596
1597 ev_prepare_init (&pending_w, pendingcb);
1598
1355 ev_init (&pipeev, pipecb); 1599 ev_init (&pipe_w, pipecb);
1356 ev_set_priority (&pipeev, EV_MAXPRI); 1600 ev_set_priority (&pipe_w, EV_MAXPRI);
1357 } 1601 }
1358} 1602}
1359 1603
1604/* free up a loop structure */
1360static void noinline 1605static void noinline
1361loop_destroy (EV_P) 1606loop_destroy (EV_P)
1362{ 1607{
1363 int i; 1608 int i;
1364 1609
1365 if (ev_is_active (&pipeev)) 1610 if (ev_is_active (&pipe_w))
1366 { 1611 {
1367 ev_ref (EV_A); /* signal watcher */ 1612 /*ev_ref (EV_A);*/
1368 ev_io_stop (EV_A_ &pipeev); 1613 /*ev_io_stop (EV_A_ &pipe_w);*/
1369 1614
1370#if EV_USE_EVENTFD 1615#if EV_USE_EVENTFD
1371 if (evfd >= 0) 1616 if (evfd >= 0)
1372 close (evfd); 1617 close (evfd);
1373#endif 1618#endif
… …
1377 close (evpipe [0]); 1622 close (evpipe [0]);
1378 close (evpipe [1]); 1623 close (evpipe [1]);
1379 } 1624 }
1380 } 1625 }
1381 1626
1627#if EV_USE_SIGNALFD
1628 if (ev_is_active (&sigfd_w))
1629 {
1630 /*ev_ref (EV_A);*/
1631 /*ev_io_stop (EV_A_ &sigfd_w);*/
1632
1633 close (sigfd);
1634 }
1635#endif
1636
1382#if EV_USE_INOTIFY 1637#if EV_USE_INOTIFY
1383 if (fs_fd >= 0) 1638 if (fs_fd >= 0)
1384 close (fs_fd); 1639 close (fs_fd);
1385#endif 1640#endif
1386 1641
… …
1409#if EV_IDLE_ENABLE 1664#if EV_IDLE_ENABLE
1410 array_free (idle, [i]); 1665 array_free (idle, [i]);
1411#endif 1666#endif
1412 } 1667 }
1413 1668
1414 ev_free (anfds); anfdmax = 0; 1669 ev_free (anfds); anfds = 0; anfdmax = 0;
1415 1670
1416 /* have to use the microsoft-never-gets-it-right macro */ 1671 /* have to use the microsoft-never-gets-it-right macro */
1672 array_free (rfeed, EMPTY);
1417 array_free (fdchange, EMPTY); 1673 array_free (fdchange, EMPTY);
1418 array_free (timer, EMPTY); 1674 array_free (timer, EMPTY);
1419#if EV_PERIODIC_ENABLE 1675#if EV_PERIODIC_ENABLE
1420 array_free (periodic, EMPTY); 1676 array_free (periodic, EMPTY);
1421#endif 1677#endif
… …
1430 1686
1431 backend = 0; 1687 backend = 0;
1432} 1688}
1433 1689
1434#if EV_USE_INOTIFY 1690#if EV_USE_INOTIFY
1435void inline_size infy_fork (EV_P); 1691inline_size void infy_fork (EV_P);
1436#endif 1692#endif
1437 1693
1438void inline_size 1694inline_size void
1439loop_fork (EV_P) 1695loop_fork (EV_P)
1440{ 1696{
1441#if EV_USE_PORT 1697#if EV_USE_PORT
1442 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 1698 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
1443#endif 1699#endif
… …
1449#endif 1705#endif
1450#if EV_USE_INOTIFY 1706#if EV_USE_INOTIFY
1451 infy_fork (EV_A); 1707 infy_fork (EV_A);
1452#endif 1708#endif
1453 1709
1454 if (ev_is_active (&pipeev)) 1710 if (ev_is_active (&pipe_w))
1455 { 1711 {
1456 /* this "locks" the handlers against writing to the pipe */ 1712 /* this "locks" the handlers against writing to the pipe */
1457 /* while we modify the fd vars */ 1713 /* while we modify the fd vars */
1458 gotsig = 1; 1714 sig_pending = 1;
1459#if EV_ASYNC_ENABLE 1715#if EV_ASYNC_ENABLE
1460 gotasync = 1; 1716 async_pending = 1;
1461#endif 1717#endif
1462 1718
1463 ev_ref (EV_A); 1719 ev_ref (EV_A);
1464 ev_io_stop (EV_A_ &pipeev); 1720 ev_io_stop (EV_A_ &pipe_w);
1465 1721
1466#if EV_USE_EVENTFD 1722#if EV_USE_EVENTFD
1467 if (evfd >= 0) 1723 if (evfd >= 0)
1468 close (evfd); 1724 close (evfd);
1469#endif 1725#endif
… …
1474 close (evpipe [1]); 1730 close (evpipe [1]);
1475 } 1731 }
1476 1732
1477 evpipe_init (EV_A); 1733 evpipe_init (EV_A);
1478 /* now iterate over everything, in case we missed something */ 1734 /* now iterate over everything, in case we missed something */
1479 pipecb (EV_A_ &pipeev, EV_READ); 1735 pipecb (EV_A_ &pipe_w, EV_READ);
1480 } 1736 }
1481 1737
1482 postfork = 0; 1738 postfork = 0;
1483} 1739}
1484 1740
1485#if EV_MULTIPLICITY 1741#if EV_MULTIPLICITY
1486 1742
1487struct ev_loop * 1743struct ev_loop *
1488ev_loop_new (unsigned int flags) 1744ev_loop_new (unsigned int flags)
1489{ 1745{
1490 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 1746 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1491 1747
1492 memset (loop, 0, sizeof (struct ev_loop)); 1748 memset (EV_A, 0, sizeof (struct ev_loop));
1493
1494 loop_init (EV_A_ flags); 1749 loop_init (EV_A_ flags);
1495 1750
1496 if (ev_backend (EV_A)) 1751 if (ev_backend (EV_A))
1497 return loop; 1752 return EV_A;
1498 1753
1499 return 0; 1754 return 0;
1500} 1755}
1501 1756
1502void 1757void
… …
1509void 1764void
1510ev_loop_fork (EV_P) 1765ev_loop_fork (EV_P)
1511{ 1766{
1512 postfork = 1; /* must be in line with ev_default_fork */ 1767 postfork = 1; /* must be in line with ev_default_fork */
1513} 1768}
1769#endif /* multiplicity */
1514 1770
1515#if EV_VERIFY 1771#if EV_VERIFY
1516static void noinline 1772static void noinline
1517verify_watcher (EV_P_ W w) 1773verify_watcher (EV_P_ W w)
1518{ 1774{
1519 assert (("watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 1775 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1520 1776
1521 if (w->pending) 1777 if (w->pending)
1522 assert (("pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 1778 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1523} 1779}
1524 1780
1525static void noinline 1781static void noinline
1526verify_heap (EV_P_ ANHE *heap, int N) 1782verify_heap (EV_P_ ANHE *heap, int N)
1527{ 1783{
1528 int i; 1784 int i;
1529 1785
1530 for (i = HEAP0; i < N + HEAP0; ++i) 1786 for (i = HEAP0; i < N + HEAP0; ++i)
1531 { 1787 {
1532 assert (("active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); 1788 assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i));
1533 assert (("heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); 1789 assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i])));
1534 assert (("heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); 1790 assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i]))));
1535 1791
1536 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 1792 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1537 } 1793 }
1538} 1794}
1539 1795
1540static void noinline 1796static void noinline
1541array_verify (EV_P_ W *ws, int cnt) 1797array_verify (EV_P_ W *ws, int cnt)
1542{ 1798{
1543 while (cnt--) 1799 while (cnt--)
1544 { 1800 {
1545 assert (("active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 1801 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1546 verify_watcher (EV_A_ ws [cnt]); 1802 verify_watcher (EV_A_ ws [cnt]);
1547 } 1803 }
1548} 1804}
1549#endif 1805#endif
1550 1806
1807#if EV_MINIMAL < 2
1551void 1808void
1552ev_loop_verify (EV_P) 1809ev_loop_verify (EV_P)
1553{ 1810{
1554#if EV_VERIFY 1811#if EV_VERIFY
1555 int i; 1812 int i;
… …
1557 1814
1558 assert (activecnt >= -1); 1815 assert (activecnt >= -1);
1559 1816
1560 assert (fdchangemax >= fdchangecnt); 1817 assert (fdchangemax >= fdchangecnt);
1561 for (i = 0; i < fdchangecnt; ++i) 1818 for (i = 0; i < fdchangecnt; ++i)
1562 assert (("negative fd in fdchanges", fdchanges [i] >= 0)); 1819 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
1563 1820
1564 assert (anfdmax >= 0); 1821 assert (anfdmax >= 0);
1565 for (i = 0; i < anfdmax; ++i) 1822 for (i = 0; i < anfdmax; ++i)
1566 for (w = anfds [i].head; w; w = w->next) 1823 for (w = anfds [i].head; w; w = w->next)
1567 { 1824 {
1568 verify_watcher (EV_A_ (W)w); 1825 verify_watcher (EV_A_ (W)w);
1569 assert (("inactive fd watcher on anfd list", ev_active (w) == 1)); 1826 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
1570 assert (("fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); 1827 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
1571 } 1828 }
1572 1829
1573 assert (timermax >= timercnt); 1830 assert (timermax >= timercnt);
1574 verify_heap (EV_A_ timers, timercnt); 1831 verify_heap (EV_A_ timers, timercnt);
1575 1832
… …
1604 assert (checkmax >= checkcnt); 1861 assert (checkmax >= checkcnt);
1605 array_verify (EV_A_ (W *)checks, checkcnt); 1862 array_verify (EV_A_ (W *)checks, checkcnt);
1606 1863
1607# if 0 1864# if 0
1608 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 1865 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
1609 for (signum = signalmax; signum--; ) if (signals [signum].gotsig) 1866 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
1610# endif 1867# endif
1611#endif 1868#endif
1612} 1869}
1613 1870#endif
1614#endif /* multiplicity */
1615 1871
1616#if EV_MULTIPLICITY 1872#if EV_MULTIPLICITY
1617struct ev_loop * 1873struct ev_loop *
1618ev_default_loop_init (unsigned int flags) 1874ev_default_loop_init (unsigned int flags)
1619#else 1875#else
… …
1622#endif 1878#endif
1623{ 1879{
1624 if (!ev_default_loop_ptr) 1880 if (!ev_default_loop_ptr)
1625 { 1881 {
1626#if EV_MULTIPLICITY 1882#if EV_MULTIPLICITY
1627 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; 1883 EV_P = ev_default_loop_ptr = &default_loop_struct;
1628#else 1884#else
1629 ev_default_loop_ptr = 1; 1885 ev_default_loop_ptr = 1;
1630#endif 1886#endif
1631 1887
1632 loop_init (EV_A_ flags); 1888 loop_init (EV_A_ flags);
… …
1649 1905
1650void 1906void
1651ev_default_destroy (void) 1907ev_default_destroy (void)
1652{ 1908{
1653#if EV_MULTIPLICITY 1909#if EV_MULTIPLICITY
1654 struct ev_loop *loop = ev_default_loop_ptr; 1910 EV_P = ev_default_loop_ptr;
1655#endif 1911#endif
1912
1913 ev_default_loop_ptr = 0;
1656 1914
1657#ifndef _WIN32 1915#ifndef _WIN32
1658 ev_ref (EV_A); /* child watcher */ 1916 ev_ref (EV_A); /* child watcher */
1659 ev_signal_stop (EV_A_ &childev); 1917 ev_signal_stop (EV_A_ &childev);
1660#endif 1918#endif
… …
1664 1922
1665void 1923void
1666ev_default_fork (void) 1924ev_default_fork (void)
1667{ 1925{
1668#if EV_MULTIPLICITY 1926#if EV_MULTIPLICITY
1669 struct ev_loop *loop = ev_default_loop_ptr; 1927 EV_P = ev_default_loop_ptr;
1670#endif 1928#endif
1671 1929
1672 if (backend)
1673 postfork = 1; /* must be in line with ev_loop_fork */ 1930 postfork = 1; /* must be in line with ev_loop_fork */
1674} 1931}
1675 1932
1676/*****************************************************************************/ 1933/*****************************************************************************/
1677 1934
1678void 1935void
1679ev_invoke (EV_P_ void *w, int revents) 1936ev_invoke (EV_P_ void *w, int revents)
1680{ 1937{
1681 EV_CB_INVOKE ((W)w, revents); 1938 EV_CB_INVOKE ((W)w, revents);
1682} 1939}
1683 1940
1684void inline_speed 1941unsigned int
1685call_pending (EV_P) 1942ev_pending_count (EV_P)
1943{
1944 int pri;
1945 unsigned int count = 0;
1946
1947 for (pri = NUMPRI; pri--; )
1948 count += pendingcnt [pri];
1949
1950 return count;
1951}
1952
1953void noinline
1954ev_invoke_pending (EV_P)
1686{ 1955{
1687 int pri; 1956 int pri;
1688 1957
1689 for (pri = NUMPRI; pri--; ) 1958 for (pri = NUMPRI; pri--; )
1690 while (pendingcnt [pri]) 1959 while (pendingcnt [pri])
1691 { 1960 {
1692 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 1961 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1693 1962
1694 if (expect_true (p->w))
1695 {
1696 /*assert (("non-pending watcher on pending list", p->w->pending));*/ 1963 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
1964 /* ^ this is no longer true, as pending_w could be here */
1697 1965
1698 p->w->pending = 0; 1966 p->w->pending = 0;
1699 EV_CB_INVOKE (p->w, p->events); 1967 EV_CB_INVOKE (p->w, p->events);
1700 EV_FREQUENT_CHECK; 1968 EV_FREQUENT_CHECK;
1701 }
1702 } 1969 }
1703} 1970}
1704 1971
1705#if EV_IDLE_ENABLE 1972#if EV_IDLE_ENABLE
1706void inline_size 1973/* make idle watchers pending. this handles the "call-idle */
1974/* only when higher priorities are idle" logic */
1975inline_size void
1707idle_reify (EV_P) 1976idle_reify (EV_P)
1708{ 1977{
1709 if (expect_false (idleall)) 1978 if (expect_false (idleall))
1710 { 1979 {
1711 int pri; 1980 int pri;
… …
1723 } 1992 }
1724 } 1993 }
1725} 1994}
1726#endif 1995#endif
1727 1996
1728void inline_size 1997/* make timers pending */
1998inline_size void
1729timers_reify (EV_P) 1999timers_reify (EV_P)
1730{ 2000{
1731 EV_FREQUENT_CHECK; 2001 EV_FREQUENT_CHECK;
1732 2002
1733 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now) 2003 if (timercnt && ANHE_at (timers [HEAP0]) < mn_now)
1734 { 2004 {
1735 ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); 2005 do
1736
1737 /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
1738
1739 /* first reschedule or stop timer */
1740 if (w->repeat)
1741 { 2006 {
2007 ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]);
2008
2009 /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/
2010
2011 /* first reschedule or stop timer */
2012 if (w->repeat)
2013 {
1742 ev_at (w) += w->repeat; 2014 ev_at (w) += w->repeat;
1743 if (ev_at (w) < mn_now) 2015 if (ev_at (w) < mn_now)
1744 ev_at (w) = mn_now; 2016 ev_at (w) = mn_now;
1745 2017
1746 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); 2018 assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1747 2019
1748 ANHE_at_cache (timers [HEAP0]); 2020 ANHE_at_cache (timers [HEAP0]);
1749 downheap (timers, timercnt, HEAP0); 2021 downheap (timers, timercnt, HEAP0);
2022 }
2023 else
2024 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
2025
2026 EV_FREQUENT_CHECK;
2027 feed_reverse (EV_A_ (W)w);
1750 } 2028 }
1751 else 2029 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
1752 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1753 2030
1754 EV_FREQUENT_CHECK;
1755 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); 2031 feed_reverse_done (EV_A_ EV_TIMEOUT);
1756 } 2032 }
1757} 2033}
1758 2034
1759#if EV_PERIODIC_ENABLE 2035#if EV_PERIODIC_ENABLE
1760void inline_size 2036/* make periodics pending */
2037inline_size void
1761periodics_reify (EV_P) 2038periodics_reify (EV_P)
1762{ 2039{
1763 EV_FREQUENT_CHECK; 2040 EV_FREQUENT_CHECK;
1764 2041
1765 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 2042 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
1766 { 2043 {
1767 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 2044 int feed_count = 0;
1768 2045
1769 /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ 2046 do
1770
1771 /* first reschedule or stop timer */
1772 if (w->reschedule_cb)
1773 { 2047 {
2048 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2049
2050 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
2051
2052 /* first reschedule or stop timer */
2053 if (w->reschedule_cb)
2054 {
1774 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2055 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1775 2056
1776 assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); 2057 assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now));
1777 2058
1778 ANHE_at_cache (periodics [HEAP0]); 2059 ANHE_at_cache (periodics [HEAP0]);
1779 downheap (periodics, periodiccnt, HEAP0); 2060 downheap (periodics, periodiccnt, HEAP0);
2061 }
2062 else if (w->interval)
2063 {
2064 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2065 /* if next trigger time is not sufficiently in the future, put it there */
2066 /* this might happen because of floating point inexactness */
2067 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
2068 {
2069 ev_at (w) += w->interval;
2070
2071 /* if interval is unreasonably low we might still have a time in the past */
2072 /* so correct this. this will make the periodic very inexact, but the user */
2073 /* has effectively asked to get triggered more often than possible */
2074 if (ev_at (w) < ev_rt_now)
2075 ev_at (w) = ev_rt_now;
2076 }
2077
2078 ANHE_at_cache (periodics [HEAP0]);
2079 downheap (periodics, periodiccnt, HEAP0);
2080 }
2081 else
2082 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
2083
2084 EV_FREQUENT_CHECK;
2085 feed_reverse (EV_A_ (W)w);
1780 } 2086 }
1781 else if (w->interval) 2087 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now);
1782 {
1783 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1784 /* if next trigger time is not sufficiently in the future, put it there */
1785 /* this might happen because of floating point inexactness */
1786 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
1787 {
1788 ev_at (w) += w->interval;
1789 2088
1790 /* if interval is unreasonably low we might still have a time in the past */
1791 /* so correct this. this will make the periodic very inexact, but the user */
1792 /* has effectively asked to get triggered more often than possible */
1793 if (ev_at (w) < ev_rt_now)
1794 ev_at (w) = ev_rt_now;
1795 }
1796
1797 ANHE_at_cache (periodics [HEAP0]);
1798 downheap (periodics, periodiccnt, HEAP0);
1799 }
1800 else
1801 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1802
1803 EV_FREQUENT_CHECK;
1804 ev_feed_event (EV_A_ (W)w, EV_PERIODIC); 2089 feed_reverse_done (EV_A_ EV_PERIODIC);
1805 } 2090 }
1806} 2091}
1807 2092
2093/* simply recalculate all periodics */
2094/* TODO: maybe ensure that at leats one event happens when jumping forward? */
1808static void noinline 2095static void noinline
1809periodics_reschedule (EV_P) 2096periodics_reschedule (EV_P)
1810{ 2097{
1811 int i; 2098 int i;
1812 2099
… …
1825 2112
1826 reheap (periodics, periodiccnt); 2113 reheap (periodics, periodiccnt);
1827} 2114}
1828#endif 2115#endif
1829 2116
1830void inline_speed 2117/* adjust all timers by a given offset */
2118static void noinline
2119timers_reschedule (EV_P_ ev_tstamp adjust)
2120{
2121 int i;
2122
2123 for (i = 0; i < timercnt; ++i)
2124 {
2125 ANHE *he = timers + i + HEAP0;
2126 ANHE_w (*he)->at += adjust;
2127 ANHE_at_cache (*he);
2128 }
2129}
2130
2131/* fetch new monotonic and realtime times from the kernel */
2132/* also detetc if there was a timejump, and act accordingly */
2133inline_speed void
1831time_update (EV_P_ ev_tstamp max_block) 2134time_update (EV_P_ ev_tstamp max_block)
1832{ 2135{
1833 int i;
1834
1835#if EV_USE_MONOTONIC 2136#if EV_USE_MONOTONIC
1836 if (expect_true (have_monotonic)) 2137 if (expect_true (have_monotonic))
1837 { 2138 {
2139 int i;
1838 ev_tstamp odiff = rtmn_diff; 2140 ev_tstamp odiff = rtmn_diff;
1839 2141
1840 mn_now = get_clock (); 2142 mn_now = get_clock ();
1841 2143
1842 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ 2144 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
… …
1868 ev_rt_now = ev_time (); 2170 ev_rt_now = ev_time ();
1869 mn_now = get_clock (); 2171 mn_now = get_clock ();
1870 now_floor = mn_now; 2172 now_floor = mn_now;
1871 } 2173 }
1872 2174
2175 /* no timer adjustment, as the monotonic clock doesn't jump */
2176 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1873# if EV_PERIODIC_ENABLE 2177# if EV_PERIODIC_ENABLE
1874 periodics_reschedule (EV_A); 2178 periodics_reschedule (EV_A);
1875# endif 2179# endif
1876 /* no timer adjustment, as the monotonic clock doesn't jump */
1877 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1878 } 2180 }
1879 else 2181 else
1880#endif 2182#endif
1881 { 2183 {
1882 ev_rt_now = ev_time (); 2184 ev_rt_now = ev_time ();
1883 2185
1884 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) 2186 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
1885 { 2187 {
2188 /* adjust timers. this is easy, as the offset is the same for all of them */
2189 timers_reschedule (EV_A_ ev_rt_now - mn_now);
1886#if EV_PERIODIC_ENABLE 2190#if EV_PERIODIC_ENABLE
1887 periodics_reschedule (EV_A); 2191 periodics_reschedule (EV_A);
1888#endif 2192#endif
1889 /* adjust timers. this is easy, as the offset is the same for all of them */
1890 for (i = 0; i < timercnt; ++i)
1891 {
1892 ANHE *he = timers + i + HEAP0;
1893 ANHE_w (*he)->at += ev_rt_now - mn_now;
1894 ANHE_at_cache (*he);
1895 }
1896 } 2193 }
1897 2194
1898 mn_now = ev_rt_now; 2195 mn_now = ev_rt_now;
1899 } 2196 }
1900} 2197}
1901 2198
1902void 2199void
1903ev_ref (EV_P)
1904{
1905 ++activecnt;
1906}
1907
1908void
1909ev_unref (EV_P)
1910{
1911 --activecnt;
1912}
1913
1914static int loop_done;
1915
1916void
1917ev_loop (EV_P_ int flags) 2200ev_loop (EV_P_ int flags)
1918{ 2201{
2202#if EV_MINIMAL < 2
2203 ++loop_depth;
2204#endif
2205
2206 assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE));
2207
1919 loop_done = EVUNLOOP_CANCEL; 2208 loop_done = EVUNLOOP_CANCEL;
1920 2209
1921 call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ 2210 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
1922 2211
1923 do 2212 do
1924 { 2213 {
1925#if EV_VERIFY >= 2 2214#if EV_VERIFY >= 2
1926 ev_loop_verify (EV_A); 2215 ev_loop_verify (EV_A);
… …
1939 /* we might have forked, so queue fork handlers */ 2228 /* we might have forked, so queue fork handlers */
1940 if (expect_false (postfork)) 2229 if (expect_false (postfork))
1941 if (forkcnt) 2230 if (forkcnt)
1942 { 2231 {
1943 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2232 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
1944 call_pending (EV_A); 2233 EV_INVOKE_PENDING;
1945 } 2234 }
1946#endif 2235#endif
1947 2236
1948 /* queue prepare watchers (and execute them) */ 2237 /* queue prepare watchers (and execute them) */
1949 if (expect_false (preparecnt)) 2238 if (expect_false (preparecnt))
1950 { 2239 {
1951 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 2240 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1952 call_pending (EV_A); 2241 EV_INVOKE_PENDING;
1953 } 2242 }
1954 2243
1955 if (expect_false (!activecnt)) 2244 if (expect_false (loop_done))
1956 break; 2245 break;
1957 2246
1958 /* we might have forked, so reify kernel state if necessary */ 2247 /* we might have forked, so reify kernel state if necessary */
1959 if (expect_false (postfork)) 2248 if (expect_false (postfork))
1960 loop_fork (EV_A); 2249 loop_fork (EV_A);
… …
1967 ev_tstamp waittime = 0.; 2256 ev_tstamp waittime = 0.;
1968 ev_tstamp sleeptime = 0.; 2257 ev_tstamp sleeptime = 0.;
1969 2258
1970 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 2259 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))
1971 { 2260 {
2261 /* remember old timestamp for io_blocktime calculation */
2262 ev_tstamp prev_mn_now = mn_now;
2263
1972 /* update time to cancel out callback processing overhead */ 2264 /* update time to cancel out callback processing overhead */
1973 time_update (EV_A_ 1e100); 2265 time_update (EV_A_ 1e100);
1974 2266
1975 waittime = MAX_BLOCKTIME; 2267 waittime = MAX_BLOCKTIME;
1976 2268
… …
1986 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 2278 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge;
1987 if (waittime > to) waittime = to; 2279 if (waittime > to) waittime = to;
1988 } 2280 }
1989#endif 2281#endif
1990 2282
2283 /* don't let timeouts decrease the waittime below timeout_blocktime */
1991 if (expect_false (waittime < timeout_blocktime)) 2284 if (expect_false (waittime < timeout_blocktime))
1992 waittime = timeout_blocktime; 2285 waittime = timeout_blocktime;
1993 2286
1994 sleeptime = waittime - backend_fudge; 2287 /* extra check because io_blocktime is commonly 0 */
1995
1996 if (expect_true (sleeptime > io_blocktime)) 2288 if (expect_false (io_blocktime))
1997 sleeptime = io_blocktime;
1998
1999 if (sleeptime)
2000 { 2289 {
2290 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2291
2292 if (sleeptime > waittime - backend_fudge)
2293 sleeptime = waittime - backend_fudge;
2294
2295 if (expect_true (sleeptime > 0.))
2296 {
2001 ev_sleep (sleeptime); 2297 ev_sleep (sleeptime);
2002 waittime -= sleeptime; 2298 waittime -= sleeptime;
2299 }
2003 } 2300 }
2004 } 2301 }
2005 2302
2303#if EV_MINIMAL < 2
2006 ++loop_count; 2304 ++loop_count;
2305#endif
2306 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */
2007 backend_poll (EV_A_ waittime); 2307 backend_poll (EV_A_ waittime);
2308 assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */
2008 2309
2009 /* update ev_rt_now, do magic */ 2310 /* update ev_rt_now, do magic */
2010 time_update (EV_A_ waittime + sleeptime); 2311 time_update (EV_A_ waittime + sleeptime);
2011 } 2312 }
2012 2313
… …
2023 2324
2024 /* queue check watchers, to be executed first */ 2325 /* queue check watchers, to be executed first */
2025 if (expect_false (checkcnt)) 2326 if (expect_false (checkcnt))
2026 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 2327 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
2027 2328
2028 call_pending (EV_A); 2329 EV_INVOKE_PENDING;
2029 } 2330 }
2030 while (expect_true ( 2331 while (expect_true (
2031 activecnt 2332 activecnt
2032 && !loop_done 2333 && !loop_done
2033 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 2334 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK))
2034 )); 2335 ));
2035 2336
2036 if (loop_done == EVUNLOOP_ONE) 2337 if (loop_done == EVUNLOOP_ONE)
2037 loop_done = EVUNLOOP_CANCEL; 2338 loop_done = EVUNLOOP_CANCEL;
2339
2340#if EV_MINIMAL < 2
2341 --loop_depth;
2342#endif
2038} 2343}
2039 2344
2040void 2345void
2041ev_unloop (EV_P_ int how) 2346ev_unloop (EV_P_ int how)
2042{ 2347{
2043 loop_done = how; 2348 loop_done = how;
2044} 2349}
2045 2350
2351void
2352ev_ref (EV_P)
2353{
2354 ++activecnt;
2355}
2356
2357void
2358ev_unref (EV_P)
2359{
2360 --activecnt;
2361}
2362
2363void
2364ev_now_update (EV_P)
2365{
2366 time_update (EV_A_ 1e100);
2367}
2368
2369void
2370ev_suspend (EV_P)
2371{
2372 ev_now_update (EV_A);
2373}
2374
2375void
2376ev_resume (EV_P)
2377{
2378 ev_tstamp mn_prev = mn_now;
2379
2380 ev_now_update (EV_A);
2381 timers_reschedule (EV_A_ mn_now - mn_prev);
2382#if EV_PERIODIC_ENABLE
2383 /* TODO: really do this? */
2384 periodics_reschedule (EV_A);
2385#endif
2386}
2387
2046/*****************************************************************************/ 2388/*****************************************************************************/
2389/* singly-linked list management, used when the expected list length is short */
2047 2390
2048void inline_size 2391inline_size void
2049wlist_add (WL *head, WL elem) 2392wlist_add (WL *head, WL elem)
2050{ 2393{
2051 elem->next = *head; 2394 elem->next = *head;
2052 *head = elem; 2395 *head = elem;
2053} 2396}
2054 2397
2055void inline_size 2398inline_size void
2056wlist_del (WL *head, WL elem) 2399wlist_del (WL *head, WL elem)
2057{ 2400{
2058 while (*head) 2401 while (*head)
2059 { 2402 {
2060 if (*head == elem) 2403 if (expect_true (*head == elem))
2061 { 2404 {
2062 *head = elem->next; 2405 *head = elem->next;
2063 return; 2406 break;
2064 } 2407 }
2065 2408
2066 head = &(*head)->next; 2409 head = &(*head)->next;
2067 } 2410 }
2068} 2411}
2069 2412
2070void inline_speed 2413/* internal, faster, version of ev_clear_pending */
2414inline_speed void
2071clear_pending (EV_P_ W w) 2415clear_pending (EV_P_ W w)
2072{ 2416{
2073 if (w->pending) 2417 if (w->pending)
2074 { 2418 {
2075 pendings [ABSPRI (w)][w->pending - 1].w = 0; 2419 pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w;
2076 w->pending = 0; 2420 w->pending = 0;
2077 } 2421 }
2078} 2422}
2079 2423
2080int 2424int
… …
2084 int pending = w_->pending; 2428 int pending = w_->pending;
2085 2429
2086 if (expect_true (pending)) 2430 if (expect_true (pending))
2087 { 2431 {
2088 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; 2432 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
2433 p->w = (W)&pending_w;
2089 w_->pending = 0; 2434 w_->pending = 0;
2090 p->w = 0;
2091 return p->events; 2435 return p->events;
2092 } 2436 }
2093 else 2437 else
2094 return 0; 2438 return 0;
2095} 2439}
2096 2440
2097void inline_size 2441inline_size void
2098pri_adjust (EV_P_ W w) 2442pri_adjust (EV_P_ W w)
2099{ 2443{
2100 int pri = w->priority; 2444 int pri = ev_priority (w);
2101 pri = pri < EV_MINPRI ? EV_MINPRI : pri; 2445 pri = pri < EV_MINPRI ? EV_MINPRI : pri;
2102 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; 2446 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
2103 w->priority = pri; 2447 ev_set_priority (w, pri);
2104} 2448}
2105 2449
2106void inline_speed 2450inline_speed void
2107ev_start (EV_P_ W w, int active) 2451ev_start (EV_P_ W w, int active)
2108{ 2452{
2109 pri_adjust (EV_A_ w); 2453 pri_adjust (EV_A_ w);
2110 w->active = active; 2454 w->active = active;
2111 ev_ref (EV_A); 2455 ev_ref (EV_A);
2112} 2456}
2113 2457
2114void inline_size 2458inline_size void
2115ev_stop (EV_P_ W w) 2459ev_stop (EV_P_ W w)
2116{ 2460{
2117 ev_unref (EV_A); 2461 ev_unref (EV_A);
2118 w->active = 0; 2462 w->active = 0;
2119} 2463}
… …
2126 int fd = w->fd; 2470 int fd = w->fd;
2127 2471
2128 if (expect_false (ev_is_active (w))) 2472 if (expect_false (ev_is_active (w)))
2129 return; 2473 return;
2130 2474
2131 assert (("ev_io_start called with negative fd", fd >= 0)); 2475 assert (("libev: ev_io_start called with negative fd", fd >= 0));
2476 assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2132 2477
2133 EV_FREQUENT_CHECK; 2478 EV_FREQUENT_CHECK;
2134 2479
2135 ev_start (EV_A_ (W)w, 1); 2480 ev_start (EV_A_ (W)w, 1);
2136 array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); 2481 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2137 wlist_add (&anfds[fd].head, (WL)w); 2482 wlist_add (&anfds[fd].head, (WL)w);
2138 2483
2139 fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); 2484 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2140 w->events &= ~EV_IOFDSET; 2485 w->events &= ~EV__IOFDSET;
2141 2486
2142 EV_FREQUENT_CHECK; 2487 EV_FREQUENT_CHECK;
2143} 2488}
2144 2489
2145void noinline 2490void noinline
… …
2147{ 2492{
2148 clear_pending (EV_A_ (W)w); 2493 clear_pending (EV_A_ (W)w);
2149 if (expect_false (!ev_is_active (w))) 2494 if (expect_false (!ev_is_active (w)))
2150 return; 2495 return;
2151 2496
2152 assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); 2497 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
2153 2498
2154 EV_FREQUENT_CHECK; 2499 EV_FREQUENT_CHECK;
2155 2500
2156 wlist_del (&anfds[w->fd].head, (WL)w); 2501 wlist_del (&anfds[w->fd].head, (WL)w);
2157 ev_stop (EV_A_ (W)w); 2502 ev_stop (EV_A_ (W)w);
… …
2167 if (expect_false (ev_is_active (w))) 2512 if (expect_false (ev_is_active (w)))
2168 return; 2513 return;
2169 2514
2170 ev_at (w) += mn_now; 2515 ev_at (w) += mn_now;
2171 2516
2172 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 2517 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
2173 2518
2174 EV_FREQUENT_CHECK; 2519 EV_FREQUENT_CHECK;
2175 2520
2176 ++timercnt; 2521 ++timercnt;
2177 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); 2522 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
… …
2180 ANHE_at_cache (timers [ev_active (w)]); 2525 ANHE_at_cache (timers [ev_active (w)]);
2181 upheap (timers, ev_active (w)); 2526 upheap (timers, ev_active (w));
2182 2527
2183 EV_FREQUENT_CHECK; 2528 EV_FREQUENT_CHECK;
2184 2529
2185 /*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 2530 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2186} 2531}
2187 2532
2188void noinline 2533void noinline
2189ev_timer_stop (EV_P_ ev_timer *w) 2534ev_timer_stop (EV_P_ ev_timer *w)
2190{ 2535{
… …
2195 EV_FREQUENT_CHECK; 2540 EV_FREQUENT_CHECK;
2196 2541
2197 { 2542 {
2198 int active = ev_active (w); 2543 int active = ev_active (w);
2199 2544
2200 assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); 2545 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
2201 2546
2202 --timercnt; 2547 --timercnt;
2203 2548
2204 if (expect_true (active < timercnt + HEAP0)) 2549 if (expect_true (active < timercnt + HEAP0))
2205 { 2550 {
… …
2238 } 2583 }
2239 2584
2240 EV_FREQUENT_CHECK; 2585 EV_FREQUENT_CHECK;
2241} 2586}
2242 2587
2588ev_tstamp
2589ev_timer_remaining (EV_P_ ev_timer *w)
2590{
2591 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
2592}
2593
2243#if EV_PERIODIC_ENABLE 2594#if EV_PERIODIC_ENABLE
2244void noinline 2595void noinline
2245ev_periodic_start (EV_P_ ev_periodic *w) 2596ev_periodic_start (EV_P_ ev_periodic *w)
2246{ 2597{
2247 if (expect_false (ev_is_active (w))) 2598 if (expect_false (ev_is_active (w)))
… …
2249 2600
2250 if (w->reschedule_cb) 2601 if (w->reschedule_cb)
2251 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2602 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2252 else if (w->interval) 2603 else if (w->interval)
2253 { 2604 {
2254 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); 2605 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2255 /* this formula differs from the one in periodic_reify because we do not always round up */ 2606 /* this formula differs from the one in periodic_reify because we do not always round up */
2256 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2607 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2257 } 2608 }
2258 else 2609 else
2259 ev_at (w) = w->offset; 2610 ev_at (w) = w->offset;
… …
2267 ANHE_at_cache (periodics [ev_active (w)]); 2618 ANHE_at_cache (periodics [ev_active (w)]);
2268 upheap (periodics, ev_active (w)); 2619 upheap (periodics, ev_active (w));
2269 2620
2270 EV_FREQUENT_CHECK; 2621 EV_FREQUENT_CHECK;
2271 2622
2272 /*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 2623 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2273} 2624}
2274 2625
2275void noinline 2626void noinline
2276ev_periodic_stop (EV_P_ ev_periodic *w) 2627ev_periodic_stop (EV_P_ ev_periodic *w)
2277{ 2628{
… …
2282 EV_FREQUENT_CHECK; 2633 EV_FREQUENT_CHECK;
2283 2634
2284 { 2635 {
2285 int active = ev_active (w); 2636 int active = ev_active (w);
2286 2637
2287 assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); 2638 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
2288 2639
2289 --periodiccnt; 2640 --periodiccnt;
2290 2641
2291 if (expect_true (active < periodiccnt + HEAP0)) 2642 if (expect_true (active < periodiccnt + HEAP0))
2292 { 2643 {
… …
2314#endif 2665#endif
2315 2666
2316void noinline 2667void noinline
2317ev_signal_start (EV_P_ ev_signal *w) 2668ev_signal_start (EV_P_ ev_signal *w)
2318{ 2669{
2319#if EV_MULTIPLICITY
2320 assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2321#endif
2322 if (expect_false (ev_is_active (w))) 2670 if (expect_false (ev_is_active (w)))
2323 return; 2671 return;
2324 2672
2325 assert (("ev_signal_start called with illegal signal number", w->signum > 0)); 2673 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
2326 2674
2327 evpipe_init (EV_A); 2675#if EV_MULTIPLICITY
2676 assert (("libev: tried to attach to a signal from two different loops",
2677 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
2328 2678
2329 EV_FREQUENT_CHECK; 2679 signals [w->signum - 1].loop = EV_A;
2680#endif
2330 2681
2682 EV_FREQUENT_CHECK;
2683
2684#if EV_USE_SIGNALFD
2685 if (sigfd == -2)
2331 { 2686 {
2332#ifndef _WIN32 2687 sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC);
2333 sigset_t full, prev; 2688 if (sigfd < 0 && errno == EINVAL)
2334 sigfillset (&full); 2689 sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */
2335 sigprocmask (SIG_SETMASK, &full, &prev);
2336#endif
2337 2690
2338 array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); 2691 if (sigfd >= 0)
2692 {
2693 fd_intern (sigfd); /* doing it twice will not hurt */
2339 2694
2340#ifndef _WIN32 2695 sigemptyset (&sigfd_set);
2341 sigprocmask (SIG_SETMASK, &prev, 0); 2696
2342#endif 2697 ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ);
2698 ev_set_priority (&sigfd_w, EV_MAXPRI);
2699 ev_io_start (EV_A_ &sigfd_w);
2700 ev_unref (EV_A); /* signalfd watcher should not keep loop alive */
2701 }
2343 } 2702 }
2703
2704 if (sigfd >= 0)
2705 {
2706 /* TODO: check .head */
2707 sigaddset (&sigfd_set, w->signum);
2708 sigprocmask (SIG_BLOCK, &sigfd_set, 0);
2709
2710 signalfd (sigfd, &sigfd_set, 0);
2711 }
2712#endif
2344 2713
2345 ev_start (EV_A_ (W)w, 1); 2714 ev_start (EV_A_ (W)w, 1);
2346 wlist_add (&signals [w->signum - 1].head, (WL)w); 2715 wlist_add (&signals [w->signum - 1].head, (WL)w);
2347 2716
2348 if (!((WL)w)->next) 2717 if (!((WL)w)->next)
2718# if EV_USE_SIGNALFD
2719 if (sigfd < 0) /*TODO*/
2720# endif
2349 { 2721 {
2350#if _WIN32 2722# if _WIN32
2351 signal (w->signum, ev_sighandler); 2723 signal (w->signum, ev_sighandler);
2352#else 2724# else
2353 struct sigaction sa; 2725 struct sigaction sa;
2726
2727 evpipe_init (EV_A);
2728
2354 sa.sa_handler = ev_sighandler; 2729 sa.sa_handler = ev_sighandler;
2355 sigfillset (&sa.sa_mask); 2730 sigfillset (&sa.sa_mask);
2356 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 2731 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2357 sigaction (w->signum, &sa, 0); 2732 sigaction (w->signum, &sa, 0);
2733
2734 sigemptyset (&sa.sa_mask);
2735 sigaddset (&sa.sa_mask, w->signum);
2736 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
2358#endif 2737#endif
2359 } 2738 }
2360 2739
2361 EV_FREQUENT_CHECK; 2740 EV_FREQUENT_CHECK;
2362} 2741}
2363 2742
2364void noinline 2743void noinline
… …
2372 2751
2373 wlist_del (&signals [w->signum - 1].head, (WL)w); 2752 wlist_del (&signals [w->signum - 1].head, (WL)w);
2374 ev_stop (EV_A_ (W)w); 2753 ev_stop (EV_A_ (W)w);
2375 2754
2376 if (!signals [w->signum - 1].head) 2755 if (!signals [w->signum - 1].head)
2756 {
2757#if EV_MULTIPLICITY
2758 signals [w->signum - 1].loop = 0; /* unattach from signal */
2759#endif
2760#if EV_USE_SIGNALFD
2761 if (sigfd >= 0)
2762 {
2763 sigprocmask (SIG_UNBLOCK, &sigfd_set, 0);//D
2764 sigdelset (&sigfd_set, w->signum);
2765 signalfd (sigfd, &sigfd_set, 0);
2766 sigprocmask (SIG_BLOCK, &sigfd_set, 0);//D
2767 /*TODO: maybe unblock signal? */
2768 }
2769 else
2770#endif
2377 signal (w->signum, SIG_DFL); 2771 signal (w->signum, SIG_DFL);
2772 }
2378 2773
2379 EV_FREQUENT_CHECK; 2774 EV_FREQUENT_CHECK;
2380} 2775}
2381 2776
2382void 2777void
2383ev_child_start (EV_P_ ev_child *w) 2778ev_child_start (EV_P_ ev_child *w)
2384{ 2779{
2385#if EV_MULTIPLICITY 2780#if EV_MULTIPLICITY
2386 assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 2781 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2387#endif 2782#endif
2388 if (expect_false (ev_is_active (w))) 2783 if (expect_false (ev_is_active (w)))
2389 return; 2784 return;
2390 2785
2391 EV_FREQUENT_CHECK; 2786 EV_FREQUENT_CHECK;
… …
2416# ifdef _WIN32 2811# ifdef _WIN32
2417# undef lstat 2812# undef lstat
2418# define lstat(a,b) _stati64 (a,b) 2813# define lstat(a,b) _stati64 (a,b)
2419# endif 2814# endif
2420 2815
2421#define DEF_STAT_INTERVAL 5.0074891 2816#define DEF_STAT_INTERVAL 5.0074891
2817#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
2422#define MIN_STAT_INTERVAL 0.1074891 2818#define MIN_STAT_INTERVAL 0.1074891
2423 2819
2424static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 2820static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2425 2821
2426#if EV_USE_INOTIFY 2822#if EV_USE_INOTIFY
2427# define EV_INOTIFY_BUFSIZE 8192 2823# define EV_INOTIFY_BUFSIZE 8192
… …
2431{ 2827{
2432 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); 2828 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);
2433 2829
2434 if (w->wd < 0) 2830 if (w->wd < 0)
2435 { 2831 {
2832 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2436 ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ 2833 ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2437 2834
2438 /* monitor some parent directory for speedup hints */ 2835 /* monitor some parent directory for speedup hints */
2439 /* note that exceeding the hardcoded limit is not a correctness issue, */ 2836 /* note that exceeding the hardcoded path limit is not a correctness issue, */
2440 /* but an efficiency issue only */ 2837 /* but an efficiency issue only */
2441 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) 2838 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2442 { 2839 {
2443 char path [4096]; 2840 char path [4096];
2444 strcpy (path, w->path); 2841 strcpy (path, w->path);
… …
2448 int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF 2845 int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF
2449 | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); 2846 | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);
2450 2847
2451 char *pend = strrchr (path, '/'); 2848 char *pend = strrchr (path, '/');
2452 2849
2453 if (!pend) 2850 if (!pend || pend == path)
2454 break; /* whoops, no '/', complain to your admin */ 2851 break;
2455 2852
2456 *pend = 0; 2853 *pend = 0;
2457 w->wd = inotify_add_watch (fs_fd, path, mask); 2854 w->wd = inotify_add_watch (fs_fd, path, mask);
2458 } 2855 }
2459 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 2856 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2460 } 2857 }
2461 } 2858 }
2462 else
2463 ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */
2464 2859
2465 if (w->wd >= 0) 2860 if (w->wd >= 0)
2861 {
2466 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 2862 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
2863
2864 /* now local changes will be tracked by inotify, but remote changes won't */
2865 /* unless the filesystem it known to be local, we therefore still poll */
2866 /* also do poll on <2.6.25, but with normal frequency */
2867 struct statfs sfs;
2868
2869 if (fs_2625 && !statfs (w->path, &sfs))
2870 if (sfs.f_type == 0x1373 /* devfs */
2871 || sfs.f_type == 0xEF53 /* ext2/3 */
2872 || sfs.f_type == 0x3153464a /* jfs */
2873 || sfs.f_type == 0x52654973 /* reiser3 */
2874 || sfs.f_type == 0x01021994 /* tempfs */
2875 || sfs.f_type == 0x58465342 /* xfs */)
2876 return;
2877
2878 w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
2879 ev_timer_again (EV_A_ &w->timer);
2880 }
2467} 2881}
2468 2882
2469static void noinline 2883static void noinline
2470infy_del (EV_P_ ev_stat *w) 2884infy_del (EV_P_ ev_stat *w)
2471{ 2885{
… …
2485 2899
2486static void noinline 2900static void noinline
2487infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 2901infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2488{ 2902{
2489 if (slot < 0) 2903 if (slot < 0)
2490 /* overflow, need to check for all hahs slots */ 2904 /* overflow, need to check for all hash slots */
2491 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 2905 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
2492 infy_wd (EV_A_ slot, wd, ev); 2906 infy_wd (EV_A_ slot, wd, ev);
2493 else 2907 else
2494 { 2908 {
2495 WL w_; 2909 WL w_;
… …
2501 2915
2502 if (w->wd == wd || wd == -1) 2916 if (w->wd == wd || wd == -1)
2503 { 2917 {
2504 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 2918 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2505 { 2919 {
2920 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
2506 w->wd = -1; 2921 w->wd = -1;
2507 infy_add (EV_A_ w); /* re-add, no matter what */ 2922 infy_add (EV_A_ w); /* re-add, no matter what */
2508 } 2923 }
2509 2924
2510 stat_timer_cb (EV_A_ &w->timer, 0); 2925 stat_timer_cb (EV_A_ &w->timer, 0);
… …
2523 2938
2524 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) 2939 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)
2525 infy_wd (EV_A_ ev->wd, ev->wd, ev); 2940 infy_wd (EV_A_ ev->wd, ev->wd, ev);
2526} 2941}
2527 2942
2528void inline_size 2943inline_size void
2944check_2625 (EV_P)
2945{
2946 /* kernels < 2.6.25 are borked
2947 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2948 */
2949 struct utsname buf;
2950 int major, minor, micro;
2951
2952 if (uname (&buf))
2953 return;
2954
2955 if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
2956 return;
2957
2958 if (major < 2
2959 || (major == 2 && minor < 6)
2960 || (major == 2 && minor == 6 && micro < 25))
2961 return;
2962
2963 fs_2625 = 1;
2964}
2965
2966inline_size void
2529infy_init (EV_P) 2967infy_init (EV_P)
2530{ 2968{
2531 if (fs_fd != -2) 2969 if (fs_fd != -2)
2532 return; 2970 return;
2971
2972 fs_fd = -1;
2973
2974 check_2625 (EV_A);
2533 2975
2534 fs_fd = inotify_init (); 2976 fs_fd = inotify_init ();
2535 2977
2536 if (fs_fd >= 0) 2978 if (fs_fd >= 0)
2537 { 2979 {
… …
2539 ev_set_priority (&fs_w, EV_MAXPRI); 2981 ev_set_priority (&fs_w, EV_MAXPRI);
2540 ev_io_start (EV_A_ &fs_w); 2982 ev_io_start (EV_A_ &fs_w);
2541 } 2983 }
2542} 2984}
2543 2985
2544void inline_size 2986inline_size void
2545infy_fork (EV_P) 2987infy_fork (EV_P)
2546{ 2988{
2547 int slot; 2989 int slot;
2548 2990
2549 if (fs_fd < 0) 2991 if (fs_fd < 0)
… …
2565 w->wd = -1; 3007 w->wd = -1;
2566 3008
2567 if (fs_fd >= 0) 3009 if (fs_fd >= 0)
2568 infy_add (EV_A_ w); /* re-add, no matter what */ 3010 infy_add (EV_A_ w); /* re-add, no matter what */
2569 else 3011 else
2570 ev_timer_start (EV_A_ &w->timer); 3012 ev_timer_again (EV_A_ &w->timer);
2571 } 3013 }
2572
2573 } 3014 }
2574} 3015}
2575 3016
2576#endif 3017#endif
2577 3018
… …
2613 || w->prev.st_atime != w->attr.st_atime 3054 || w->prev.st_atime != w->attr.st_atime
2614 || w->prev.st_mtime != w->attr.st_mtime 3055 || w->prev.st_mtime != w->attr.st_mtime
2615 || w->prev.st_ctime != w->attr.st_ctime 3056 || w->prev.st_ctime != w->attr.st_ctime
2616 ) { 3057 ) {
2617 #if EV_USE_INOTIFY 3058 #if EV_USE_INOTIFY
3059 if (fs_fd >= 0)
3060 {
2618 infy_del (EV_A_ w); 3061 infy_del (EV_A_ w);
2619 infy_add (EV_A_ w); 3062 infy_add (EV_A_ w);
2620 ev_stat_stat (EV_A_ w); /* avoid race... */ 3063 ev_stat_stat (EV_A_ w); /* avoid race... */
3064 }
2621 #endif 3065 #endif
2622 3066
2623 ev_feed_event (EV_A_ w, EV_STAT); 3067 ev_feed_event (EV_A_ w, EV_STAT);
2624 } 3068 }
2625} 3069}
… …
2628ev_stat_start (EV_P_ ev_stat *w) 3072ev_stat_start (EV_P_ ev_stat *w)
2629{ 3073{
2630 if (expect_false (ev_is_active (w))) 3074 if (expect_false (ev_is_active (w)))
2631 return; 3075 return;
2632 3076
2633 /* since we use memcmp, we need to clear any padding data etc. */
2634 memset (&w->prev, 0, sizeof (ev_statdata));
2635 memset (&w->attr, 0, sizeof (ev_statdata));
2636
2637 ev_stat_stat (EV_A_ w); 3077 ev_stat_stat (EV_A_ w);
2638 3078
3079 if (w->interval < MIN_STAT_INTERVAL && w->interval)
2639 if (w->interval < MIN_STAT_INTERVAL) 3080 w->interval = MIN_STAT_INTERVAL;
2640 w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
2641 3081
2642 ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); 3082 ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL);
2643 ev_set_priority (&w->timer, ev_priority (w)); 3083 ev_set_priority (&w->timer, ev_priority (w));
2644 3084
2645#if EV_USE_INOTIFY 3085#if EV_USE_INOTIFY
2646 infy_init (EV_A); 3086 infy_init (EV_A);
2647 3087
2648 if (fs_fd >= 0) 3088 if (fs_fd >= 0)
2649 infy_add (EV_A_ w); 3089 infy_add (EV_A_ w);
2650 else 3090 else
2651#endif 3091#endif
2652 ev_timer_start (EV_A_ &w->timer); 3092 ev_timer_again (EV_A_ &w->timer);
2653 3093
2654 ev_start (EV_A_ (W)w, 1); 3094 ev_start (EV_A_ (W)w, 1);
2655 3095
2656 EV_FREQUENT_CHECK; 3096 EV_FREQUENT_CHECK;
2657} 3097}
… …
2817embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 3257embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
2818{ 3258{
2819 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); 3259 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
2820 3260
2821 { 3261 {
2822 struct ev_loop *loop = w->other; 3262 EV_P = w->other;
2823 3263
2824 while (fdchangecnt) 3264 while (fdchangecnt)
2825 { 3265 {
2826 fd_reify (EV_A); 3266 fd_reify (EV_A);
2827 ev_loop (EV_A_ EVLOOP_NONBLOCK); 3267 ev_loop (EV_A_ EVLOOP_NONBLOCK);
2828 } 3268 }
2829 } 3269 }
2830} 3270}
2831 3271
3272static void
3273embed_fork_cb (EV_P_ ev_fork *fork_w, int revents)
3274{
3275 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
3276
3277 ev_embed_stop (EV_A_ w);
3278
3279 {
3280 EV_P = w->other;
3281
3282 ev_loop_fork (EV_A);
3283 ev_loop (EV_A_ EVLOOP_NONBLOCK);
3284 }
3285
3286 ev_embed_start (EV_A_ w);
3287}
3288
2832#if 0 3289#if 0
2833static void 3290static void
2834embed_idle_cb (EV_P_ ev_idle *idle, int revents) 3291embed_idle_cb (EV_P_ ev_idle *idle, int revents)
2835{ 3292{
2836 ev_idle_stop (EV_A_ idle); 3293 ev_idle_stop (EV_A_ idle);
… …
2842{ 3299{
2843 if (expect_false (ev_is_active (w))) 3300 if (expect_false (ev_is_active (w)))
2844 return; 3301 return;
2845 3302
2846 { 3303 {
2847 struct ev_loop *loop = w->other; 3304 EV_P = w->other;
2848 assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 3305 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2849 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); 3306 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2850 } 3307 }
2851 3308
2852 EV_FREQUENT_CHECK; 3309 EV_FREQUENT_CHECK;
2853 3310
… …
2856 3313
2857 ev_prepare_init (&w->prepare, embed_prepare_cb); 3314 ev_prepare_init (&w->prepare, embed_prepare_cb);
2858 ev_set_priority (&w->prepare, EV_MINPRI); 3315 ev_set_priority (&w->prepare, EV_MINPRI);
2859 ev_prepare_start (EV_A_ &w->prepare); 3316 ev_prepare_start (EV_A_ &w->prepare);
2860 3317
3318 ev_fork_init (&w->fork, embed_fork_cb);
3319 ev_fork_start (EV_A_ &w->fork);
3320
2861 /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ 3321 /*ev_idle_init (&w->idle, e,bed_idle_cb);*/
2862 3322
2863 ev_start (EV_A_ (W)w, 1); 3323 ev_start (EV_A_ (W)w, 1);
2864 3324
2865 EV_FREQUENT_CHECK; 3325 EV_FREQUENT_CHECK;
… …
2872 if (expect_false (!ev_is_active (w))) 3332 if (expect_false (!ev_is_active (w)))
2873 return; 3333 return;
2874 3334
2875 EV_FREQUENT_CHECK; 3335 EV_FREQUENT_CHECK;
2876 3336
2877 ev_io_stop (EV_A_ &w->io); 3337 ev_io_stop (EV_A_ &w->io);
2878 ev_prepare_stop (EV_A_ &w->prepare); 3338 ev_prepare_stop (EV_A_ &w->prepare);
2879 3339 ev_fork_stop (EV_A_ &w->fork);
2880 ev_stop (EV_A_ (W)w);
2881 3340
2882 EV_FREQUENT_CHECK; 3341 EV_FREQUENT_CHECK;
2883} 3342}
2884#endif 3343#endif
2885 3344
… …
2962 3421
2963void 3422void
2964ev_async_send (EV_P_ ev_async *w) 3423ev_async_send (EV_P_ ev_async *w)
2965{ 3424{
2966 w->sent = 1; 3425 w->sent = 1;
2967 evpipe_write (EV_A_ &gotasync); 3426 evpipe_write (EV_A_ &async_pending);
2968} 3427}
2969#endif 3428#endif
2970 3429
2971/*****************************************************************************/ 3430/*****************************************************************************/
2972 3431
… …
2992} 3451}
2993 3452
2994static void 3453static void
2995once_cb_io (EV_P_ ev_io *w, int revents) 3454once_cb_io (EV_P_ ev_io *w, int revents)
2996{ 3455{
2997 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); 3456 struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io));
3457
3458 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to));
2998} 3459}
2999 3460
3000static void 3461static void
3001once_cb_to (EV_P_ ev_timer *w, int revents) 3462once_cb_to (EV_P_ ev_timer *w, int revents)
3002{ 3463{
3003 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); 3464 struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to));
3465
3466 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
3004} 3467}
3005 3468
3006void 3469void
3007ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 3470ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)
3008{ 3471{
… …
3030 ev_timer_set (&once->to, timeout, 0.); 3493 ev_timer_set (&once->to, timeout, 0.);
3031 ev_timer_start (EV_A_ &once->to); 3494 ev_timer_start (EV_A_ &once->to);
3032 } 3495 }
3033} 3496}
3034 3497
3498/*****************************************************************************/
3499
3500#if EV_WALK_ENABLE
3501void
3502ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))
3503{
3504 int i, j;
3505 ev_watcher_list *wl, *wn;
3506
3507 if (types & (EV_IO | EV_EMBED))
3508 for (i = 0; i < anfdmax; ++i)
3509 for (wl = anfds [i].head; wl; )
3510 {
3511 wn = wl->next;
3512
3513#if EV_EMBED_ENABLE
3514 if (ev_cb ((ev_io *)wl) == embed_io_cb)
3515 {
3516 if (types & EV_EMBED)
3517 cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io));
3518 }
3519 else
3520#endif
3521#if EV_USE_INOTIFY
3522 if (ev_cb ((ev_io *)wl) == infy_cb)
3523 ;
3524 else
3525#endif
3526 if ((ev_io *)wl != &pipe_w)
3527 if (types & EV_IO)
3528 cb (EV_A_ EV_IO, wl);
3529
3530 wl = wn;
3531 }
3532
3533 if (types & (EV_TIMER | EV_STAT))
3534 for (i = timercnt + HEAP0; i-- > HEAP0; )
3535#if EV_STAT_ENABLE
3536 /*TODO: timer is not always active*/
3537 if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb)
3538 {
3539 if (types & EV_STAT)
3540 cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer));
3541 }
3542 else
3543#endif
3544 if (types & EV_TIMER)
3545 cb (EV_A_ EV_TIMER, ANHE_w (timers [i]));
3546
3547#if EV_PERIODIC_ENABLE
3548 if (types & EV_PERIODIC)
3549 for (i = periodiccnt + HEAP0; i-- > HEAP0; )
3550 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3551#endif
3552
3553#if EV_IDLE_ENABLE
3554 if (types & EV_IDLE)
3555 for (j = NUMPRI; i--; )
3556 for (i = idlecnt [j]; i--; )
3557 cb (EV_A_ EV_IDLE, idles [j][i]);
3558#endif
3559
3560#if EV_FORK_ENABLE
3561 if (types & EV_FORK)
3562 for (i = forkcnt; i--; )
3563 if (ev_cb (forks [i]) != embed_fork_cb)
3564 cb (EV_A_ EV_FORK, forks [i]);
3565#endif
3566
3567#if EV_ASYNC_ENABLE
3568 if (types & EV_ASYNC)
3569 for (i = asynccnt; i--; )
3570 cb (EV_A_ EV_ASYNC, asyncs [i]);
3571#endif
3572
3573 if (types & EV_PREPARE)
3574 for (i = preparecnt; i--; )
3575#if EV_EMBED_ENABLE
3576 if (ev_cb (prepares [i]) != embed_prepare_cb)
3577#endif
3578 cb (EV_A_ EV_PREPARE, prepares [i]);
3579
3580 if (types & EV_CHECK)
3581 for (i = checkcnt; i--; )
3582 cb (EV_A_ EV_CHECK, checks [i]);
3583
3584 if (types & EV_SIGNAL)
3585 for (i = 0; i < EV_NSIG - 1; ++i)
3586 for (wl = signals [i].head; wl; )
3587 {
3588 wn = wl->next;
3589 cb (EV_A_ EV_SIGNAL, wl);
3590 wl = wn;
3591 }
3592
3593 if (types & EV_CHILD)
3594 for (i = EV_PID_HASHSIZE; i--; )
3595 for (wl = childs [i]; wl; )
3596 {
3597 wn = wl->next;
3598 cb (EV_A_ EV_CHILD, wl);
3599 wl = wn;
3600 }
3601/* EV_STAT 0x00001000 /* stat data changed */
3602/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3603}
3604#endif
3605
3035#if EV_MULTIPLICITY 3606#if EV_MULTIPLICITY
3036 #include "ev_wrap.h" 3607 #include "ev_wrap.h"
3037#endif 3608#endif
3038 3609
3039#ifdef __cplusplus 3610#ifdef __cplusplus

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