ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/libev/ev.c
(Generate patch)

Comparing libev/ev.c (file contents):
Revision 1.252 by root, Thu May 22 03:43:32 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
… …
154#ifndef _WIN32 176#ifndef _WIN32
155# include <sys/time.h> 177# include <sys/time.h>
156# include <sys/wait.h> 178# include <sys/wait.h>
157# include <unistd.h> 179# include <unistd.h>
158#else 180#else
181# include <io.h>
159# define WIN32_LEAN_AND_MEAN 182# define WIN32_LEAN_AND_MEAN
160# include <windows.h> 183# include <windows.h>
161# ifndef EV_SELECT_IS_WINSOCKET 184# ifndef EV_SELECT_IS_WINSOCKET
162# define EV_SELECT_IS_WINSOCKET 1 185# define EV_SELECT_IS_WINSOCKET 1
163# endif 186# endif
164#endif 187#endif
165 188
166/* this block tries to deduce configuration from header-defined symbols and defaults */ 189/* this block tries to deduce configuration from header-defined symbols and defaults */
167 190
191/* try to deduce the maximum number of signals on this platform */
192#if defined (EV_NSIG)
193/* use what's provided */
194#elif defined (NSIG)
195# define EV_NSIG (NSIG)
196#elif defined(_NSIG)
197# define EV_NSIG (_NSIG)
198#elif defined (SIGMAX)
199# define EV_NSIG (SIGMAX+1)
200#elif defined (SIG_MAX)
201# define EV_NSIG (SIG_MAX+1)
202#elif defined (_SIG_MAX)
203# define EV_NSIG (_SIG_MAX+1)
204#elif defined (MAXSIG)
205# define EV_NSIG (MAXSIG+1)
206#elif defined (MAX_SIG)
207# define EV_NSIG (MAX_SIG+1)
208#elif defined (SIGARRAYSIZE)
209# define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */
210#elif defined (_sys_nsig)
211# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
212#else
213# error "unable to find value for NSIG, please report"
214/* to make it compile regardless, just remove the above line */
215# define EV_NSIG 65
216#endif
217
218#ifndef EV_USE_CLOCK_SYSCALL
219# if __linux && __GLIBC__ >= 2
220# define EV_USE_CLOCK_SYSCALL 1
221# else
222# define EV_USE_CLOCK_SYSCALL 0
223# endif
224#endif
225
168#ifndef EV_USE_MONOTONIC 226#ifndef EV_USE_MONOTONIC
227# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0
228# define EV_USE_MONOTONIC 1
229# else
169# define EV_USE_MONOTONIC 0 230# define EV_USE_MONOTONIC 0
231# endif
170#endif 232#endif
171 233
172#ifndef EV_USE_REALTIME 234#ifndef EV_USE_REALTIME
173# define EV_USE_REALTIME 0 235# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
174#endif 236#endif
175 237
176#ifndef EV_USE_NANOSLEEP 238#ifndef EV_USE_NANOSLEEP
239# if _POSIX_C_SOURCE >= 199309L
240# define EV_USE_NANOSLEEP 1
241# else
177# define EV_USE_NANOSLEEP 0 242# define EV_USE_NANOSLEEP 0
243# endif
178#endif 244#endif
179 245
180#ifndef EV_USE_SELECT 246#ifndef EV_USE_SELECT
181# define EV_USE_SELECT 1 247# define EV_USE_SELECT 1
182#endif 248#endif
… …
235# else 301# else
236# define EV_USE_EVENTFD 0 302# define EV_USE_EVENTFD 0
237# endif 303# endif
238#endif 304#endif
239 305
306#ifndef EV_USE_SIGNALFD
307# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 9))
308# define EV_USE_SIGNALFD 1
309# else
310# define EV_USE_SIGNALFD 0
311# endif
312#endif
313
240#if 0 /* debugging */ 314#if 0 /* debugging */
241# define EV_VERIFY 3 315# define EV_VERIFY 3
242# define EV_USE_4HEAP 1 316# define EV_USE_4HEAP 1
243# define EV_HEAP_CACHE_AT 1 317# define EV_HEAP_CACHE_AT 1
244#endif 318#endif
… …
253 327
254#ifndef EV_HEAP_CACHE_AT 328#ifndef EV_HEAP_CACHE_AT
255# define EV_HEAP_CACHE_AT !EV_MINIMAL 329# define EV_HEAP_CACHE_AT !EV_MINIMAL
256#endif 330#endif
257 331
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
258/* 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 */
259 347
260#ifndef CLOCK_MONOTONIC 348#ifndef CLOCK_MONOTONIC
261# undef EV_USE_MONOTONIC 349# undef EV_USE_MONOTONIC
262# define EV_USE_MONOTONIC 0 350# define EV_USE_MONOTONIC 0
… …
277# include <sys/select.h> 365# include <sys/select.h>
278# endif 366# endif
279#endif 367#endif
280 368
281#if EV_USE_INOTIFY 369#if EV_USE_INOTIFY
370# include <sys/utsname.h>
371# include <sys/statfs.h>
282# 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
283#endif 378#endif
284 379
285#if EV_SELECT_IS_WINSOCKET 380#if EV_SELECT_IS_WINSOCKET
286# include <winsock.h> 381# include <winsock.h>
287#endif 382#endif
288 383
289#if EV_USE_EVENTFD 384#if EV_USE_EVENTFD
290/* 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 */
291# 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
292# ifdef __cplusplus 393# ifdef __cplusplus
293extern "C" { 394extern "C" {
294# endif 395# endif
295int eventfd (unsigned int initval, int flags); 396int eventfd (unsigned int initval, int flags);
296# ifdef __cplusplus 397# ifdef __cplusplus
297} 398}
298# endif 399# endif
400#endif
401
402#if EV_USE_SIGNALFD
403# include <sys/signalfd.h>
299#endif 404#endif
300 405
301/**/ 406/**/
302 407
303#if EV_VERIFY >= 3 408#if EV_VERIFY >= 3
… …
339# define inline_speed static noinline 444# define inline_speed static noinline
340#else 445#else
341# define inline_speed static inline 446# define inline_speed static inline
342#endif 447#endif
343 448
344#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
345#define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 454# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
455#endif
346 456
347#define EMPTY /* required for microsofts broken pseudo-c compiler */ 457#define EMPTY /* required for microsofts broken pseudo-c compiler */
348#define EMPTY2(a,b) /* used to suppress some warnings */ 458#define EMPTY2(a,b) /* used to suppress some warnings */
349 459
350typedef ev_watcher *W; 460typedef ev_watcher *W;
… …
352typedef ev_watcher_time *WT; 462typedef ev_watcher_time *WT;
353 463
354#define ev_active(w) ((W)(w))->active 464#define ev_active(w) ((W)(w))->active
355#define ev_at(w) ((WT)(w))->at 465#define ev_at(w) ((WT)(w))->at
356 466
357#if EV_USE_MONOTONIC 467#if EV_USE_REALTIME
358/* 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 */
359/* 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
360static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 474static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
361#endif 475#endif
362 476
363#ifdef _WIN32 477#ifdef _WIN32
364# include "ev_win32.c" 478# include "ev_win32.c"
… …
373{ 487{
374 syserr_cb = cb; 488 syserr_cb = cb;
375} 489}
376 490
377static void noinline 491static void noinline
378syserr (const char *msg) 492ev_syserr (const char *msg)
379{ 493{
380 if (!msg) 494 if (!msg)
381 msg = "(libev) system error"; 495 msg = "(libev) system error";
382 496
383 if (syserr_cb) 497 if (syserr_cb)
… …
429#define ev_malloc(size) ev_realloc (0, (size)) 543#define ev_malloc(size) ev_realloc (0, (size))
430#define ev_free(ptr) ev_realloc ((ptr), 0) 544#define ev_free(ptr) ev_realloc ((ptr), 0)
431 545
432/*****************************************************************************/ 546/*****************************************************************************/
433 547
548/* set in reify when reification needed */
549#define EV_ANFD_REIFY 1
550
551/* file descriptor info structure */
434typedef struct 552typedef struct
435{ 553{
436 WL head; 554 WL head;
437 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 */
438 unsigned char reify; 558 unsigned char unused;
559#if EV_USE_EPOLL
560 unsigned int egen; /* generation counter to counter epoll bugs */
561#endif
439#if EV_SELECT_IS_WINSOCKET 562#if EV_SELECT_IS_WINSOCKET
440 SOCKET handle; 563 SOCKET handle;
441#endif 564#endif
442} ANFD; 565} ANFD;
443 566
567/* stores the pending event set for a given watcher */
444typedef struct 568typedef struct
445{ 569{
446 W w; 570 W w;
447 int events; 571 int events; /* the pending event set for the given watcher */
448} ANPENDING; 572} ANPENDING;
449 573
450#if EV_USE_INOTIFY 574#if EV_USE_INOTIFY
451/* hash table entry per inotify-id */ 575/* hash table entry per inotify-id */
452typedef struct 576typedef struct
… …
455} ANFS; 579} ANFS;
456#endif 580#endif
457 581
458/* Heap Entry */ 582/* Heap Entry */
459#if EV_HEAP_CACHE_AT 583#if EV_HEAP_CACHE_AT
584 /* a heap element */
460 typedef struct { 585 typedef struct {
461 ev_tstamp at; 586 ev_tstamp at;
462 WT w; 587 WT w;
463 } ANHE; 588 } ANHE;
464 589
465 #define ANHE_w(he) (he).w /* access watcher, read-write */ 590 #define ANHE_w(he) (he).w /* access watcher, read-write */
466 #define ANHE_at(he) (he).at /* access cached at, read-only */ 591 #define ANHE_at(he) (he).at /* access cached at, read-only */
467 #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 */
468#else 593#else
594 /* a heap element */
469 typedef WT ANHE; 595 typedef WT ANHE;
470 596
471 #define ANHE_w(he) (he) 597 #define ANHE_w(he) (he)
472 #define ANHE_at(he) (he)->at 598 #define ANHE_at(he) (he)->at
473 #define ANHE_at_cache(he) 599 #define ANHE_at_cache(he)
… …
497 623
498 static int ev_default_loop_ptr; 624 static int ev_default_loop_ptr;
499 625
500#endif 626#endif
501 627
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
502/*****************************************************************************/ 640/*****************************************************************************/
503 641
642#ifndef EV_HAVE_EV_TIME
504ev_tstamp 643ev_tstamp
505ev_time (void) 644ev_time (void)
506{ 645{
507#if EV_USE_REALTIME 646#if EV_USE_REALTIME
647 if (expect_true (have_realtime))
648 {
508 struct timespec ts; 649 struct timespec ts;
509 clock_gettime (CLOCK_REALTIME, &ts); 650 clock_gettime (CLOCK_REALTIME, &ts);
510 return ts.tv_sec + ts.tv_nsec * 1e-9; 651 return ts.tv_sec + ts.tv_nsec * 1e-9;
511#else 652 }
653#endif
654
512 struct timeval tv; 655 struct timeval tv;
513 gettimeofday (&tv, 0); 656 gettimeofday (&tv, 0);
514 return tv.tv_sec + tv.tv_usec * 1e-6; 657 return tv.tv_sec + tv.tv_usec * 1e-6;
515#endif
516} 658}
659#endif
517 660
518ev_tstamp inline_size 661inline_size ev_tstamp
519get_clock (void) 662get_clock (void)
520{ 663{
521#if EV_USE_MONOTONIC 664#if EV_USE_MONOTONIC
522 if (expect_true (have_monotonic)) 665 if (expect_true (have_monotonic))
523 { 666 {
… …
556 struct timeval tv; 699 struct timeval tv;
557 700
558 tv.tv_sec = (time_t)delay; 701 tv.tv_sec = (time_t)delay;
559 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); 702 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
560 703
704 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
705 /* something not guaranteed by newer posix versions, but guaranteed */
706 /* by older ones */
561 select (0, 0, 0, 0, &tv); 707 select (0, 0, 0, 0, &tv);
562#endif 708#endif
563 } 709 }
564} 710}
565 711
566/*****************************************************************************/ 712/*****************************************************************************/
567 713
568#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 */
569 715
570int 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
571array_nextsize (int elem, int cur, int cnt) 719array_nextsize (int elem, int cur, int cnt)
572{ 720{
573 int ncur = cur + 1; 721 int ncur = cur + 1;
574 722
575 do 723 do
… …
592array_realloc (int elem, void *base, int *cur, int cnt) 740array_realloc (int elem, void *base, int *cur, int cnt)
593{ 741{
594 *cur = array_nextsize (elem, *cur, cnt); 742 *cur = array_nextsize (elem, *cur, cnt);
595 return ev_realloc (base, elem * *cur); 743 return ev_realloc (base, elem * *cur);
596} 744}
745
746#define array_init_zero(base,count) \
747 memset ((void *)(base), 0, sizeof (*(base)) * (count))
597 748
598#define array_needsize(type,base,cur,cnt,init) \ 749#define array_needsize(type,base,cur,cnt,init) \
599 if (expect_false ((cnt) > (cur))) \ 750 if (expect_false ((cnt) > (cur))) \
600 { \ 751 { \
601 int ocur_ = (cur); \ 752 int ocur_ = (cur); \
… …
613 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ 764 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
614 } 765 }
615#endif 766#endif
616 767
617#define array_free(stem, idx) \ 768#define array_free(stem, idx) \
618 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
619 770
620/*****************************************************************************/ 771/*****************************************************************************/
772
773/* dummy callback for pending events */
774static void noinline
775pendingcb (EV_P_ ev_prepare *w, int revents)
776{
777}
621 778
622void noinline 779void noinline
623ev_feed_event (EV_P_ void *w, int revents) 780ev_feed_event (EV_P_ void *w, int revents)
624{ 781{
625 W w_ = (W)w; 782 W w_ = (W)w;
… …
634 pendings [pri][w_->pending - 1].w = w_; 791 pendings [pri][w_->pending - 1].w = w_;
635 pendings [pri][w_->pending - 1].events = revents; 792 pendings [pri][w_->pending - 1].events = revents;
636 } 793 }
637} 794}
638 795
639void 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
640queue_events (EV_P_ W *events, int eventcnt, int type) 812queue_events (EV_P_ W *events, int eventcnt, int type)
641{ 813{
642 int i; 814 int i;
643 815
644 for (i = 0; i < eventcnt; ++i) 816 for (i = 0; i < eventcnt; ++i)
645 ev_feed_event (EV_A_ events [i], type); 817 ev_feed_event (EV_A_ events [i], type);
646} 818}
647 819
648/*****************************************************************************/ 820/*****************************************************************************/
649 821
650void inline_size 822inline_speed void
651anfds_init (ANFD *base, int count)
652{
653 while (count--)
654 {
655 base->head = 0;
656 base->events = EV_NONE;
657 base->reify = 0;
658
659 ++base;
660 }
661}
662
663void inline_speed
664fd_event (EV_P_ int fd, int revents) 823fd_event_nc (EV_P_ int fd, int revents)
665{ 824{
666 ANFD *anfd = anfds + fd; 825 ANFD *anfd = anfds + fd;
667 ev_io *w; 826 ev_io *w;
668 827
669 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)
… …
673 if (ev) 832 if (ev)
674 ev_feed_event (EV_A_ (W)w, ev); 833 ev_feed_event (EV_A_ (W)w, ev);
675 } 834 }
676} 835}
677 836
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
678void 848void
679ev_feed_fd_event (EV_P_ int fd, int revents) 849ev_feed_fd_event (EV_P_ int fd, int revents)
680{ 850{
681 if (fd >= 0 && fd < anfdmax) 851 if (fd >= 0 && fd < anfdmax)
682 fd_event (EV_A_ fd, revents); 852 fd_event_nc (EV_A_ fd, revents);
683} 853}
684 854
685void inline_size 855/* make sure the external fd watch events are in-sync */
856/* with the kernel/libev internal state */
857inline_size void
686fd_reify (EV_P) 858fd_reify (EV_P)
687{ 859{
688 int i; 860 int i;
689 861
690 for (i = 0; i < fdchangecnt; ++i) 862 for (i = 0; i < fdchangecnt; ++i)
… …
699 events |= (unsigned char)w->events; 871 events |= (unsigned char)w->events;
700 872
701#if EV_SELECT_IS_WINSOCKET 873#if EV_SELECT_IS_WINSOCKET
702 if (events) 874 if (events)
703 { 875 {
704 unsigned long argp; 876 unsigned long arg;
705 #ifdef EV_FD_TO_WIN32_HANDLE 877 #ifdef EV_FD_TO_WIN32_HANDLE
706 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 878 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
707 #else 879 #else
708 anfd->handle = _get_osfhandle (fd); 880 anfd->handle = _get_osfhandle (fd);
709 #endif 881 #endif
710 assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); 882 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
711 } 883 }
712#endif 884#endif
713 885
714 { 886 {
715 unsigned char o_events = anfd->events; 887 unsigned char o_events = anfd->events;
716 unsigned char o_reify = anfd->reify; 888 unsigned char o_reify = anfd->reify;
717 889
718 anfd->reify = 0; 890 anfd->reify = 0;
719 anfd->events = events; 891 anfd->events = events;
720 892
721 if (o_events != events || o_reify & EV_IOFDSET) 893 if (o_events != events || o_reify & EV__IOFDSET)
722 backend_modify (EV_A_ fd, o_events, events); 894 backend_modify (EV_A_ fd, o_events, events);
723 } 895 }
724 } 896 }
725 897
726 fdchangecnt = 0; 898 fdchangecnt = 0;
727} 899}
728 900
729void inline_size 901/* something about the given fd changed */
902inline_size void
730fd_change (EV_P_ int fd, int flags) 903fd_change (EV_P_ int fd, int flags)
731{ 904{
732 unsigned char reify = anfds [fd].reify; 905 unsigned char reify = anfds [fd].reify;
733 anfds [fd].reify |= flags; 906 anfds [fd].reify |= flags;
734 907
… …
738 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 911 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
739 fdchanges [fdchangecnt - 1] = fd; 912 fdchanges [fdchangecnt - 1] = fd;
740 } 913 }
741} 914}
742 915
743void inline_speed 916/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
917inline_speed void
744fd_kill (EV_P_ int fd) 918fd_kill (EV_P_ int fd)
745{ 919{
746 ev_io *w; 920 ev_io *w;
747 921
748 while ((w = (ev_io *)anfds [fd].head)) 922 while ((w = (ev_io *)anfds [fd].head))
… …
750 ev_io_stop (EV_A_ w); 924 ev_io_stop (EV_A_ w);
751 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);
752 } 926 }
753} 927}
754 928
755int inline_size 929/* check whether the given fd is atcually valid, for error recovery */
930inline_size int
756fd_valid (int fd) 931fd_valid (int fd)
757{ 932{
758#ifdef _WIN32 933#ifdef _WIN32
759 return _get_osfhandle (fd) != -1; 934 return _get_osfhandle (fd) != -1;
760#else 935#else
… …
768{ 943{
769 int fd; 944 int fd;
770 945
771 for (fd = 0; fd < anfdmax; ++fd) 946 for (fd = 0; fd < anfdmax; ++fd)
772 if (anfds [fd].events) 947 if (anfds [fd].events)
773 if (!fd_valid (fd) == -1 && errno == EBADF) 948 if (!fd_valid (fd) && errno == EBADF)
774 fd_kill (EV_A_ fd); 949 fd_kill (EV_A_ fd);
775} 950}
776 951
777/* called on ENOMEM in select/poll to kill some fds and retry */ 952/* called on ENOMEM in select/poll to kill some fds and retry */
778static void noinline 953static void noinline
… …
782 957
783 for (fd = anfdmax; fd--; ) 958 for (fd = anfdmax; fd--; )
784 if (anfds [fd].events) 959 if (anfds [fd].events)
785 { 960 {
786 fd_kill (EV_A_ fd); 961 fd_kill (EV_A_ fd);
787 return; 962 break;
788 } 963 }
789} 964}
790 965
791/* 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 */
792static void noinline 967static void noinline
… …
796 971
797 for (fd = 0; fd < anfdmax; ++fd) 972 for (fd = 0; fd < anfdmax; ++fd)
798 if (anfds [fd].events) 973 if (anfds [fd].events)
799 { 974 {
800 anfds [fd].events = 0; 975 anfds [fd].events = 0;
976 anfds [fd].emask = 0;
801 fd_change (EV_A_ fd, EV_IOFDSET | 1); 977 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
802 } 978 }
803} 979}
804 980
805/*****************************************************************************/ 981/*****************************************************************************/
806 982
… …
822#define HEAP0 (DHEAP - 1) /* index of first element in heap */ 998#define HEAP0 (DHEAP - 1) /* index of first element in heap */
823#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) 999#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0)
824#define UPHEAP_DONE(p,k) ((p) == (k)) 1000#define UPHEAP_DONE(p,k) ((p) == (k))
825 1001
826/* away from the root */ 1002/* away from the root */
827void inline_speed 1003inline_speed void
828downheap (ANHE *heap, int N, int k) 1004downheap (ANHE *heap, int N, int k)
829{ 1005{
830 ANHE he = heap [k]; 1006 ANHE he = heap [k];
831 ANHE *E = heap + N + HEAP0; 1007 ANHE *E = heap + N + HEAP0;
832 1008
… …
872#define HEAP0 1 1048#define HEAP0 1
873#define HPARENT(k) ((k) >> 1) 1049#define HPARENT(k) ((k) >> 1)
874#define UPHEAP_DONE(p,k) (!(p)) 1050#define UPHEAP_DONE(p,k) (!(p))
875 1051
876/* away from the root */ 1052/* away from the root */
877void inline_speed 1053inline_speed void
878downheap (ANHE *heap, int N, int k) 1054downheap (ANHE *heap, int N, int k)
879{ 1055{
880 ANHE he = heap [k]; 1056 ANHE he = heap [k];
881 1057
882 for (;;) 1058 for (;;)
… …
902 ev_active (ANHE_w (he)) = k; 1078 ev_active (ANHE_w (he)) = k;
903} 1079}
904#endif 1080#endif
905 1081
906/* towards the root */ 1082/* towards the root */
907void inline_speed 1083inline_speed void
908upheap (ANHE *heap, int k) 1084upheap (ANHE *heap, int k)
909{ 1085{
910 ANHE he = heap [k]; 1086 ANHE he = heap [k];
911 1087
912 for (;;) 1088 for (;;)
… …
923 1099
924 heap [k] = he; 1100 heap [k] = he;
925 ev_active (ANHE_w (he)) = k; 1101 ev_active (ANHE_w (he)) = k;
926} 1102}
927 1103
928void inline_size 1104/* move an element suitably so it is in a correct place */
1105inline_size void
929adjustheap (ANHE *heap, int N, int k) 1106adjustheap (ANHE *heap, int N, int k)
930{ 1107{
931 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]))
932 upheap (heap, k); 1109 upheap (heap, k);
933 else 1110 else
934 downheap (heap, N, k); 1111 downheap (heap, N, k);
935} 1112}
936 1113
937/* 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 */
938void inline_size 1115inline_size void
939reheap (ANHE *heap, int N) 1116reheap (ANHE *heap, int N)
940{ 1117{
941 int i; 1118 int i;
942 1119
943 /* 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 */
… …
946 upheap (heap, i + HEAP0); 1123 upheap (heap, i + HEAP0);
947} 1124}
948 1125
949/*****************************************************************************/ 1126/*****************************************************************************/
950 1127
1128/* associate signal watchers to a signal signal */
951typedef struct 1129typedef struct
952{ 1130{
1131 EV_ATOMIC_T pending;
1132#if EV_MULTIPLICITY
1133 EV_P;
1134#endif
953 WL head; 1135 WL head;
954 EV_ATOMIC_T gotsig;
955} ANSIG; 1136} ANSIG;
956 1137
957static ANSIG *signals; 1138static ANSIG signals [EV_NSIG - 1];
958static int signalmax;
959
960static EV_ATOMIC_T gotsig;
961
962void inline_size
963signals_init (ANSIG *base, int count)
964{
965 while (count--)
966 {
967 base->head = 0;
968 base->gotsig = 0;
969
970 ++base;
971 }
972}
973 1139
974/*****************************************************************************/ 1140/*****************************************************************************/
975 1141
976void inline_speed 1142/* used to prepare libev internal fd's */
1143/* this is not fork-safe */
1144inline_speed void
977fd_intern (int fd) 1145fd_intern (int fd)
978{ 1146{
979#ifdef _WIN32 1147#ifdef _WIN32
980 int arg = 1; 1148 unsigned long arg = 1;
981 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); 1149 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
982#else 1150#else
983 fcntl (fd, F_SETFD, FD_CLOEXEC); 1151 fcntl (fd, F_SETFD, FD_CLOEXEC);
984 fcntl (fd, F_SETFL, O_NONBLOCK); 1152 fcntl (fd, F_SETFL, O_NONBLOCK);
985#endif 1153#endif
986} 1154}
987 1155
988static void noinline 1156static void noinline
989evpipe_init (EV_P) 1157evpipe_init (EV_P)
990{ 1158{
991 if (!ev_is_active (&pipeev)) 1159 if (!ev_is_active (&pipe_w))
992 { 1160 {
993#if EV_USE_EVENTFD 1161#if EV_USE_EVENTFD
1162 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1163 if (evfd < 0 && errno == EINVAL)
994 if ((evfd = eventfd (0, 0)) >= 0) 1164 evfd = eventfd (0, 0);
1165
1166 if (evfd >= 0)
995 { 1167 {
996 evpipe [0] = -1; 1168 evpipe [0] = -1;
997 fd_intern (evfd); 1169 fd_intern (evfd); /* doing it twice doesn't hurt */
998 ev_io_set (&pipeev, evfd, EV_READ); 1170 ev_io_set (&pipe_w, evfd, EV_READ);
999 } 1171 }
1000 else 1172 else
1001#endif 1173#endif
1002 { 1174 {
1003 while (pipe (evpipe)) 1175 while (pipe (evpipe))
1004 syserr ("(libev) error creating signal/async pipe"); 1176 ev_syserr ("(libev) error creating signal/async pipe");
1005 1177
1006 fd_intern (evpipe [0]); 1178 fd_intern (evpipe [0]);
1007 fd_intern (evpipe [1]); 1179 fd_intern (evpipe [1]);
1008 ev_io_set (&pipeev, evpipe [0], EV_READ); 1180 ev_io_set (&pipe_w, evpipe [0], EV_READ);
1009 } 1181 }
1010 1182
1011 ev_io_start (EV_A_ &pipeev); 1183 ev_io_start (EV_A_ &pipe_w);
1012 ev_unref (EV_A); /* watcher should not keep loop alive */ 1184 ev_unref (EV_A); /* watcher should not keep loop alive */
1013 } 1185 }
1014} 1186}
1015 1187
1016void inline_size 1188inline_size void
1017evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1189evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1018{ 1190{
1019 if (!*flag) 1191 if (!*flag)
1020 { 1192 {
1021 int old_errno = errno; /* save errno because write might clobber it */ 1193 int old_errno = errno; /* save errno because write might clobber it */
… …
1034 1206
1035 errno = old_errno; 1207 errno = old_errno;
1036 } 1208 }
1037} 1209}
1038 1210
1211/* called whenever the libev signal pipe */
1212/* got some events (signal, async) */
1039static void 1213static void
1040pipecb (EV_P_ ev_io *iow, int revents) 1214pipecb (EV_P_ ev_io *iow, int revents)
1041{ 1215{
1216 int i;
1217
1042#if EV_USE_EVENTFD 1218#if EV_USE_EVENTFD
1043 if (evfd >= 0) 1219 if (evfd >= 0)
1044 { 1220 {
1045 uint64_t counter; 1221 uint64_t counter;
1046 read (evfd, &counter, sizeof (uint64_t)); 1222 read (evfd, &counter, sizeof (uint64_t));
… …
1050 { 1226 {
1051 char dummy; 1227 char dummy;
1052 read (evpipe [0], &dummy, 1); 1228 read (evpipe [0], &dummy, 1);
1053 } 1229 }
1054 1230
1055 if (gotsig && ev_is_default_loop (EV_A)) 1231 if (sig_pending)
1056 { 1232 {
1057 int signum; 1233 sig_pending = 0;
1058 gotsig = 0;
1059 1234
1060 for (signum = signalmax; signum--; ) 1235 for (i = EV_NSIG - 1; i--; )
1061 if (signals [signum].gotsig) 1236 if (expect_false (signals [i].pending))
1062 ev_feed_signal_event (EV_A_ signum + 1); 1237 ev_feed_signal_event (EV_A_ i + 1);
1063 } 1238 }
1064 1239
1065#if EV_ASYNC_ENABLE 1240#if EV_ASYNC_ENABLE
1066 if (gotasync) 1241 if (async_pending)
1067 { 1242 {
1068 int i; 1243 async_pending = 0;
1069 gotasync = 0;
1070 1244
1071 for (i = asynccnt; i--; ) 1245 for (i = asynccnt; i--; )
1072 if (asyncs [i]->sent) 1246 if (asyncs [i]->sent)
1073 { 1247 {
1074 asyncs [i]->sent = 0; 1248 asyncs [i]->sent = 0;
… …
1082 1256
1083static void 1257static void
1084ev_sighandler (int signum) 1258ev_sighandler (int signum)
1085{ 1259{
1086#if EV_MULTIPLICITY 1260#if EV_MULTIPLICITY
1087 struct ev_loop *loop = &default_loop_struct; 1261 EV_P = signals [signum - 1].loop;
1088#endif 1262#endif
1089 1263
1090#if _WIN32 1264#if _WIN32
1091 signal (signum, ev_sighandler); 1265 signal (signum, ev_sighandler);
1092#endif 1266#endif
1093 1267
1094 signals [signum - 1].gotsig = 1; 1268 signals [signum - 1].pending = 1;
1095 evpipe_write (EV_A_ &gotsig); 1269 evpipe_write (EV_A_ &sig_pending);
1096} 1270}
1097 1271
1098void noinline 1272void noinline
1099ev_feed_signal_event (EV_P_ int signum) 1273ev_feed_signal_event (EV_P_ int signum)
1100{ 1274{
1101 WL w; 1275 WL w;
1102 1276
1277 if (expect_false (signum <= 0 || signum > EV_NSIG))
1278 return;
1279
1280 --signum;
1281
1103#if EV_MULTIPLICITY 1282#if EV_MULTIPLICITY
1104 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 */
1105#endif 1284 /* or, likely more useful, feeding a signal nobody is waiting for */
1106 1285
1107 --signum; 1286 if (expect_false (signals [signum].loop != EV_A))
1108
1109 if (signum < 0 || signum >= signalmax)
1110 return; 1287 return;
1288#endif
1111 1289
1112 signals [signum].gotsig = 0; 1290 signals [signum].pending = 0;
1113 1291
1114 for (w = signals [signum].head; w; w = w->next) 1292 for (w = signals [signum].head; w; w = w->next)
1115 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 1293 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1116} 1294}
1117 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
1118/*****************************************************************************/ 1316/*****************************************************************************/
1119 1317
1120static WL childs [EV_PID_HASHSIZE]; 1318static WL childs [EV_PID_HASHSIZE];
1121 1319
1122#ifndef _WIN32 1320#ifndef _WIN32
… …
1125 1323
1126#ifndef WIFCONTINUED 1324#ifndef WIFCONTINUED
1127# define WIFCONTINUED(status) 0 1325# define WIFCONTINUED(status) 0
1128#endif 1326#endif
1129 1327
1130void inline_speed 1328/* handle a single child status event */
1329inline_speed void
1131child_reap (EV_P_ int chain, int pid, int status) 1330child_reap (EV_P_ int chain, int pid, int status)
1132{ 1331{
1133 ev_child *w; 1332 ev_child *w;
1134 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 1333 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1135 1334
… …
1148 1347
1149#ifndef WCONTINUED 1348#ifndef WCONTINUED
1150# define WCONTINUED 0 1349# define WCONTINUED 0
1151#endif 1350#endif
1152 1351
1352/* called on sigchld etc., calls waitpid */
1153static void 1353static void
1154childcb (EV_P_ ev_signal *sw, int revents) 1354childcb (EV_P_ ev_signal *sw, int revents)
1155{ 1355{
1156 int pid, status; 1356 int pid, status;
1157 1357
… …
1238 /* kqueue is borked on everything but netbsd apparently */ 1438 /* kqueue is borked on everything but netbsd apparently */
1239 /* 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 */
1240 flags &= ~EVBACKEND_KQUEUE; 1440 flags &= ~EVBACKEND_KQUEUE;
1241#endif 1441#endif
1242#ifdef __APPLE__ 1442#ifdef __APPLE__
1243 // flags &= ~EVBACKEND_KQUEUE; for documentation 1443 /* only select works correctly on that "unix-certified" platform */
1244 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 */
1245#endif 1446#endif
1246 1447
1247 return flags; 1448 return flags;
1248} 1449}
1249 1450
… …
1263ev_backend (EV_P) 1464ev_backend (EV_P)
1264{ 1465{
1265 return backend; 1466 return backend;
1266} 1467}
1267 1468
1469#if EV_MINIMAL < 2
1268unsigned int 1470unsigned int
1269ev_loop_count (EV_P) 1471ev_loop_count (EV_P)
1270{ 1472{
1271 return loop_count; 1473 return loop_count;
1272} 1474}
1273 1475
1476unsigned int
1477ev_loop_depth (EV_P)
1478{
1479 return loop_depth;
1480}
1481
1274void 1482void
1275ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 1483ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
1276{ 1484{
1277 io_blocktime = interval; 1485 io_blocktime = interval;
1278} 1486}
… …
1281ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 1489ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
1282{ 1490{
1283 timeout_blocktime = interval; 1491 timeout_blocktime = interval;
1284} 1492}
1285 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 */
1286static void noinline 1519static void noinline
1287loop_init (EV_P_ unsigned int flags) 1520loop_init (EV_P_ unsigned int flags)
1288{ 1521{
1289 if (!backend) 1522 if (!backend)
1290 { 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
1291#if EV_USE_MONOTONIC 1534#if EV_USE_MONOTONIC
1535 if (!have_monotonic)
1292 { 1536 {
1293 struct timespec ts; 1537 struct timespec ts;
1538
1294 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 1539 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1295 have_monotonic = 1; 1540 have_monotonic = 1;
1296 } 1541 }
1297#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"));
1298 1554
1299 ev_rt_now = ev_time (); 1555 ev_rt_now = ev_time ();
1300 mn_now = get_clock (); 1556 mn_now = get_clock ();
1301 now_floor = mn_now; 1557 now_floor = mn_now;
1302 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
1303 1562
1304 io_blocktime = 0.; 1563 io_blocktime = 0.;
1305 timeout_blocktime = 0.; 1564 timeout_blocktime = 0.;
1306 backend = 0; 1565 backend = 0;
1307 backend_fd = -1; 1566 backend_fd = -1;
1308 gotasync = 0; 1567 sig_pending = 0;
1568#if EV_ASYNC_ENABLE
1569 async_pending = 0;
1570#endif
1309#if EV_USE_INOTIFY 1571#if EV_USE_INOTIFY
1310 fs_fd = -2; 1572 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1311#endif 1573#endif
1312 1574#if EV_USE_SIGNALFD
1313 /* pid check not overridable via env */ 1575 sigfd = flags & EVFLAG_NOSIGFD ? -1 : -2;
1314#ifndef _WIN32
1315 if (flags & EVFLAG_FORKCHECK)
1316 curpid = getpid ();
1317#endif 1576#endif
1318
1319 if (!(flags & EVFLAG_NOENV)
1320 && !enable_secure ()
1321 && getenv ("LIBEV_FLAGS"))
1322 flags = atoi (getenv ("LIBEV_FLAGS"));
1323 1577
1324 if (!(flags & 0x0000ffffU)) 1578 if (!(flags & 0x0000ffffU))
1325 flags |= ev_recommended_backends (); 1579 flags |= ev_recommended_backends ();
1326 1580
1327#if EV_USE_PORT 1581#if EV_USE_PORT
… …
1338#endif 1592#endif
1339#if EV_USE_SELECT 1593#if EV_USE_SELECT
1340 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 1594 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1341#endif 1595#endif
1342 1596
1597 ev_prepare_init (&pending_w, pendingcb);
1598
1343 ev_init (&pipeev, pipecb); 1599 ev_init (&pipe_w, pipecb);
1344 ev_set_priority (&pipeev, EV_MAXPRI); 1600 ev_set_priority (&pipe_w, EV_MAXPRI);
1345 } 1601 }
1346} 1602}
1347 1603
1604/* free up a loop structure */
1348static void noinline 1605static void noinline
1349loop_destroy (EV_P) 1606loop_destroy (EV_P)
1350{ 1607{
1351 int i; 1608 int i;
1352 1609
1353 if (ev_is_active (&pipeev)) 1610 if (ev_is_active (&pipe_w))
1354 { 1611 {
1355 ev_ref (EV_A); /* signal watcher */ 1612 /*ev_ref (EV_A);*/
1356 ev_io_stop (EV_A_ &pipeev); 1613 /*ev_io_stop (EV_A_ &pipe_w);*/
1357 1614
1358#if EV_USE_EVENTFD 1615#if EV_USE_EVENTFD
1359 if (evfd >= 0) 1616 if (evfd >= 0)
1360 close (evfd); 1617 close (evfd);
1361#endif 1618#endif
… …
1365 close (evpipe [0]); 1622 close (evpipe [0]);
1366 close (evpipe [1]); 1623 close (evpipe [1]);
1367 } 1624 }
1368 } 1625 }
1369 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
1370#if EV_USE_INOTIFY 1637#if EV_USE_INOTIFY
1371 if (fs_fd >= 0) 1638 if (fs_fd >= 0)
1372 close (fs_fd); 1639 close (fs_fd);
1373#endif 1640#endif
1374 1641
… …
1397#if EV_IDLE_ENABLE 1664#if EV_IDLE_ENABLE
1398 array_free (idle, [i]); 1665 array_free (idle, [i]);
1399#endif 1666#endif
1400 } 1667 }
1401 1668
1402 ev_free (anfds); anfdmax = 0; 1669 ev_free (anfds); anfds = 0; anfdmax = 0;
1403 1670
1404 /* 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);
1405 array_free (fdchange, EMPTY); 1673 array_free (fdchange, EMPTY);
1406 array_free (timer, EMPTY); 1674 array_free (timer, EMPTY);
1407#if EV_PERIODIC_ENABLE 1675#if EV_PERIODIC_ENABLE
1408 array_free (periodic, EMPTY); 1676 array_free (periodic, EMPTY);
1409#endif 1677#endif
… …
1418 1686
1419 backend = 0; 1687 backend = 0;
1420} 1688}
1421 1689
1422#if EV_USE_INOTIFY 1690#if EV_USE_INOTIFY
1423void inline_size infy_fork (EV_P); 1691inline_size void infy_fork (EV_P);
1424#endif 1692#endif
1425 1693
1426void inline_size 1694inline_size void
1427loop_fork (EV_P) 1695loop_fork (EV_P)
1428{ 1696{
1429#if EV_USE_PORT 1697#if EV_USE_PORT
1430 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 1698 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
1431#endif 1699#endif
… …
1437#endif 1705#endif
1438#if EV_USE_INOTIFY 1706#if EV_USE_INOTIFY
1439 infy_fork (EV_A); 1707 infy_fork (EV_A);
1440#endif 1708#endif
1441 1709
1442 if (ev_is_active (&pipeev)) 1710 if (ev_is_active (&pipe_w))
1443 { 1711 {
1444 /* this "locks" the handlers against writing to the pipe */ 1712 /* this "locks" the handlers against writing to the pipe */
1445 /* while we modify the fd vars */ 1713 /* while we modify the fd vars */
1446 gotsig = 1; 1714 sig_pending = 1;
1447#if EV_ASYNC_ENABLE 1715#if EV_ASYNC_ENABLE
1448 gotasync = 1; 1716 async_pending = 1;
1449#endif 1717#endif
1450 1718
1451 ev_ref (EV_A); 1719 ev_ref (EV_A);
1452 ev_io_stop (EV_A_ &pipeev); 1720 ev_io_stop (EV_A_ &pipe_w);
1453 1721
1454#if EV_USE_EVENTFD 1722#if EV_USE_EVENTFD
1455 if (evfd >= 0) 1723 if (evfd >= 0)
1456 close (evfd); 1724 close (evfd);
1457#endif 1725#endif
… …
1462 close (evpipe [1]); 1730 close (evpipe [1]);
1463 } 1731 }
1464 1732
1465 evpipe_init (EV_A); 1733 evpipe_init (EV_A);
1466 /* now iterate over everything, in case we missed something */ 1734 /* now iterate over everything, in case we missed something */
1467 pipecb (EV_A_ &pipeev, EV_READ); 1735 pipecb (EV_A_ &pipe_w, EV_READ);
1468 } 1736 }
1469 1737
1470 postfork = 0; 1738 postfork = 0;
1471} 1739}
1472 1740
1473#if EV_MULTIPLICITY 1741#if EV_MULTIPLICITY
1474 1742
1475struct ev_loop * 1743struct ev_loop *
1476ev_loop_new (unsigned int flags) 1744ev_loop_new (unsigned int flags)
1477{ 1745{
1478 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));
1479 1747
1480 memset (loop, 0, sizeof (struct ev_loop)); 1748 memset (EV_A, 0, sizeof (struct ev_loop));
1481
1482 loop_init (EV_A_ flags); 1749 loop_init (EV_A_ flags);
1483 1750
1484 if (ev_backend (EV_A)) 1751 if (ev_backend (EV_A))
1485 return loop; 1752 return EV_A;
1486 1753
1487 return 0; 1754 return 0;
1488} 1755}
1489 1756
1490void 1757void
… …
1497void 1764void
1498ev_loop_fork (EV_P) 1765ev_loop_fork (EV_P)
1499{ 1766{
1500 postfork = 1; /* must be in line with ev_default_fork */ 1767 postfork = 1; /* must be in line with ev_default_fork */
1501} 1768}
1769#endif /* multiplicity */
1502 1770
1503#if EV_VERIFY 1771#if EV_VERIFY
1504void noinline 1772static void noinline
1505verify_watcher (EV_P_ W w) 1773verify_watcher (EV_P_ W w)
1506{ 1774{
1507 assert (("watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 1775 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1508 1776
1509 if (w->pending) 1777 if (w->pending)
1510 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));
1511} 1779}
1512 1780
1513static void noinline 1781static void noinline
1514verify_heap (EV_P_ ANHE *heap, int N) 1782verify_heap (EV_P_ ANHE *heap, int N)
1515{ 1783{
1516 int i; 1784 int i;
1517 1785
1518 for (i = HEAP0; i < N + HEAP0; ++i) 1786 for (i = HEAP0; i < N + HEAP0; ++i)
1519 { 1787 {
1520 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));
1521 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])));
1522 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]))));
1523 1791
1524 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 1792 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1525 } 1793 }
1526} 1794}
1527 1795
1528static void noinline 1796static void noinline
1529array_verify (EV_P_ W *ws, int cnt) 1797array_verify (EV_P_ W *ws, int cnt)
1530{ 1798{
1531 while (cnt--) 1799 while (cnt--)
1532 { 1800 {
1533 assert (("active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 1801 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1534 verify_watcher (EV_A_ ws [cnt]); 1802 verify_watcher (EV_A_ ws [cnt]);
1535 } 1803 }
1536} 1804}
1537#endif 1805#endif
1538 1806
1807#if EV_MINIMAL < 2
1539void 1808void
1540ev_loop_verify (EV_P) 1809ev_loop_verify (EV_P)
1541{ 1810{
1542#if EV_VERIFY 1811#if EV_VERIFY
1543 int i; 1812 int i;
… …
1545 1814
1546 assert (activecnt >= -1); 1815 assert (activecnt >= -1);
1547 1816
1548 assert (fdchangemax >= fdchangecnt); 1817 assert (fdchangemax >= fdchangecnt);
1549 for (i = 0; i < fdchangecnt; ++i) 1818 for (i = 0; i < fdchangecnt; ++i)
1550 assert (("negative fd in fdchanges", fdchanges [i] >= 0)); 1819 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
1551 1820
1552 assert (anfdmax >= 0); 1821 assert (anfdmax >= 0);
1553 for (i = 0; i < anfdmax; ++i) 1822 for (i = 0; i < anfdmax; ++i)
1554 for (w = anfds [i].head; w; w = w->next) 1823 for (w = anfds [i].head; w; w = w->next)
1555 { 1824 {
1556 verify_watcher (EV_A_ (W)w); 1825 verify_watcher (EV_A_ (W)w);
1557 assert (("inactive fd watcher on anfd list", ev_active (w) == 1)); 1826 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
1558 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));
1559 } 1828 }
1560 1829
1561 assert (timermax >= timercnt); 1830 assert (timermax >= timercnt);
1562 verify_heap (EV_A_ timers, timercnt); 1831 verify_heap (EV_A_ timers, timercnt);
1563 1832
… …
1592 assert (checkmax >= checkcnt); 1861 assert (checkmax >= checkcnt);
1593 array_verify (EV_A_ (W *)checks, checkcnt); 1862 array_verify (EV_A_ (W *)checks, checkcnt);
1594 1863
1595# if 0 1864# if 0
1596 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)
1597 for (signum = signalmax; signum--; ) if (signals [signum].gotsig) 1866 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
1598# endif 1867# endif
1599#endif 1868#endif
1600} 1869}
1601 1870#endif
1602#endif /* multiplicity */
1603 1871
1604#if EV_MULTIPLICITY 1872#if EV_MULTIPLICITY
1605struct ev_loop * 1873struct ev_loop *
1606ev_default_loop_init (unsigned int flags) 1874ev_default_loop_init (unsigned int flags)
1607#else 1875#else
… …
1610#endif 1878#endif
1611{ 1879{
1612 if (!ev_default_loop_ptr) 1880 if (!ev_default_loop_ptr)
1613 { 1881 {
1614#if EV_MULTIPLICITY 1882#if EV_MULTIPLICITY
1615 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; 1883 EV_P = ev_default_loop_ptr = &default_loop_struct;
1616#else 1884#else
1617 ev_default_loop_ptr = 1; 1885 ev_default_loop_ptr = 1;
1618#endif 1886#endif
1619 1887
1620 loop_init (EV_A_ flags); 1888 loop_init (EV_A_ flags);
… …
1637 1905
1638void 1906void
1639ev_default_destroy (void) 1907ev_default_destroy (void)
1640{ 1908{
1641#if EV_MULTIPLICITY 1909#if EV_MULTIPLICITY
1642 struct ev_loop *loop = ev_default_loop_ptr; 1910 EV_P = ev_default_loop_ptr;
1643#endif 1911#endif
1912
1913 ev_default_loop_ptr = 0;
1644 1914
1645#ifndef _WIN32 1915#ifndef _WIN32
1646 ev_ref (EV_A); /* child watcher */ 1916 ev_ref (EV_A); /* child watcher */
1647 ev_signal_stop (EV_A_ &childev); 1917 ev_signal_stop (EV_A_ &childev);
1648#endif 1918#endif
… …
1652 1922
1653void 1923void
1654ev_default_fork (void) 1924ev_default_fork (void)
1655{ 1925{
1656#if EV_MULTIPLICITY 1926#if EV_MULTIPLICITY
1657 struct ev_loop *loop = ev_default_loop_ptr; 1927 EV_P = ev_default_loop_ptr;
1658#endif 1928#endif
1659 1929
1660 if (backend)
1661 postfork = 1; /* must be in line with ev_loop_fork */ 1930 postfork = 1; /* must be in line with ev_loop_fork */
1662} 1931}
1663 1932
1664/*****************************************************************************/ 1933/*****************************************************************************/
1665 1934
1666void 1935void
1667ev_invoke (EV_P_ void *w, int revents) 1936ev_invoke (EV_P_ void *w, int revents)
1668{ 1937{
1669 EV_CB_INVOKE ((W)w, revents); 1938 EV_CB_INVOKE ((W)w, revents);
1670} 1939}
1671 1940
1672void inline_speed 1941unsigned int
1673call_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)
1674{ 1955{
1675 int pri; 1956 int pri;
1676 1957
1677 for (pri = NUMPRI; pri--; ) 1958 for (pri = NUMPRI; pri--; )
1678 while (pendingcnt [pri]) 1959 while (pendingcnt [pri])
1679 { 1960 {
1680 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 1961 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1681 1962
1682 if (expect_true (p->w))
1683 {
1684 /*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 */
1685 1965
1686 p->w->pending = 0; 1966 p->w->pending = 0;
1687 EV_CB_INVOKE (p->w, p->events); 1967 EV_CB_INVOKE (p->w, p->events);
1688 EV_FREQUENT_CHECK; 1968 EV_FREQUENT_CHECK;
1689 }
1690 } 1969 }
1691} 1970}
1692 1971
1693#if EV_IDLE_ENABLE 1972#if EV_IDLE_ENABLE
1694void inline_size 1973/* make idle watchers pending. this handles the "call-idle */
1974/* only when higher priorities are idle" logic */
1975inline_size void
1695idle_reify (EV_P) 1976idle_reify (EV_P)
1696{ 1977{
1697 if (expect_false (idleall)) 1978 if (expect_false (idleall))
1698 { 1979 {
1699 int pri; 1980 int pri;
… …
1711 } 1992 }
1712 } 1993 }
1713} 1994}
1714#endif 1995#endif
1715 1996
1716void inline_size 1997/* make timers pending */
1998inline_size void
1717timers_reify (EV_P) 1999timers_reify (EV_P)
1718{ 2000{
1719 EV_FREQUENT_CHECK; 2001 EV_FREQUENT_CHECK;
1720 2002
1721 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now) 2003 if (timercnt && ANHE_at (timers [HEAP0]) < mn_now)
1722 { 2004 {
1723 ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); 2005 do
1724
1725 /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
1726
1727 /* first reschedule or stop timer */
1728 if (w->repeat)
1729 { 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 {
1730 ev_at (w) += w->repeat; 2014 ev_at (w) += w->repeat;
1731 if (ev_at (w) < mn_now) 2015 if (ev_at (w) < mn_now)
1732 ev_at (w) = mn_now; 2016 ev_at (w) = mn_now;
1733 2017
1734 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.));
1735 2019
1736 ANHE_at_cache (timers [HEAP0]); 2020 ANHE_at_cache (timers [HEAP0]);
1737 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);
1738 } 2028 }
1739 else 2029 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
1740 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1741 2030
1742 EV_FREQUENT_CHECK;
1743 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); 2031 feed_reverse_done (EV_A_ EV_TIMEOUT);
1744 } 2032 }
1745} 2033}
1746 2034
1747#if EV_PERIODIC_ENABLE 2035#if EV_PERIODIC_ENABLE
1748void inline_size 2036/* make periodics pending */
2037inline_size void
1749periodics_reify (EV_P) 2038periodics_reify (EV_P)
1750{ 2039{
1751 EV_FREQUENT_CHECK; 2040 EV_FREQUENT_CHECK;
1752 2041
1753 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 2042 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
1754 { 2043 {
1755 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 2044 int feed_count = 0;
1756 2045
1757 /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ 2046 do
1758
1759 /* first reschedule or stop timer */
1760 if (w->reschedule_cb)
1761 { 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 {
1762 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2055 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1763 2056
1764 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));
1765 2058
1766 ANHE_at_cache (periodics [HEAP0]); 2059 ANHE_at_cache (periodics [HEAP0]);
1767 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);
1768 } 2086 }
1769 else if (w->interval) 2087 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now);
1770 {
1771 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1772 /* if next trigger time is not sufficiently in the future, put it there */
1773 /* this might happen because of floating point inexactness */
1774 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
1775 {
1776 ev_at (w) += w->interval;
1777 2088
1778 /* if interval is unreasonably low we might still have a time in the past */
1779 /* so correct this. this will make the periodic very inexact, but the user */
1780 /* has effectively asked to get triggered more often than possible */
1781 if (ev_at (w) < ev_rt_now)
1782 ev_at (w) = ev_rt_now;
1783 }
1784
1785 ANHE_at_cache (periodics [HEAP0]);
1786 downheap (periodics, periodiccnt, HEAP0);
1787 }
1788 else
1789 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1790
1791 EV_FREQUENT_CHECK;
1792 ev_feed_event (EV_A_ (W)w, EV_PERIODIC); 2089 feed_reverse_done (EV_A_ EV_PERIODIC);
1793 } 2090 }
1794} 2091}
1795 2092
2093/* simply recalculate all periodics */
2094/* TODO: maybe ensure that at leats one event happens when jumping forward? */
1796static void noinline 2095static void noinline
1797periodics_reschedule (EV_P) 2096periodics_reschedule (EV_P)
1798{ 2097{
1799 int i; 2098 int i;
1800 2099
… …
1813 2112
1814 reheap (periodics, periodiccnt); 2113 reheap (periodics, periodiccnt);
1815} 2114}
1816#endif 2115#endif
1817 2116
1818void 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
1819time_update (EV_P_ ev_tstamp max_block) 2134time_update (EV_P_ ev_tstamp max_block)
1820{ 2135{
1821 int i;
1822
1823#if EV_USE_MONOTONIC 2136#if EV_USE_MONOTONIC
1824 if (expect_true (have_monotonic)) 2137 if (expect_true (have_monotonic))
1825 { 2138 {
2139 int i;
1826 ev_tstamp odiff = rtmn_diff; 2140 ev_tstamp odiff = rtmn_diff;
1827 2141
1828 mn_now = get_clock (); 2142 mn_now = get_clock ();
1829 2143
1830 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ 2144 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
… …
1856 ev_rt_now = ev_time (); 2170 ev_rt_now = ev_time ();
1857 mn_now = get_clock (); 2171 mn_now = get_clock ();
1858 now_floor = mn_now; 2172 now_floor = mn_now;
1859 } 2173 }
1860 2174
2175 /* no timer adjustment, as the monotonic clock doesn't jump */
2176 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1861# if EV_PERIODIC_ENABLE 2177# if EV_PERIODIC_ENABLE
1862 periodics_reschedule (EV_A); 2178 periodics_reschedule (EV_A);
1863# endif 2179# endif
1864 /* no timer adjustment, as the monotonic clock doesn't jump */
1865 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1866 } 2180 }
1867 else 2181 else
1868#endif 2182#endif
1869 { 2183 {
1870 ev_rt_now = ev_time (); 2184 ev_rt_now = ev_time ();
1871 2185
1872 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))
1873 { 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);
1874#if EV_PERIODIC_ENABLE 2190#if EV_PERIODIC_ENABLE
1875 periodics_reschedule (EV_A); 2191 periodics_reschedule (EV_A);
1876#endif 2192#endif
1877 /* adjust timers. this is easy, as the offset is the same for all of them */
1878 for (i = 0; i < timercnt; ++i)
1879 {
1880 ANHE *he = timers + i + HEAP0;
1881 ANHE_w (*he)->at += ev_rt_now - mn_now;
1882 ANHE_at_cache (*he);
1883 }
1884 } 2193 }
1885 2194
1886 mn_now = ev_rt_now; 2195 mn_now = ev_rt_now;
1887 } 2196 }
1888} 2197}
1889 2198
1890void 2199void
1891ev_ref (EV_P)
1892{
1893 ++activecnt;
1894}
1895
1896void
1897ev_unref (EV_P)
1898{
1899 --activecnt;
1900}
1901
1902static int loop_done;
1903
1904void
1905ev_loop (EV_P_ int flags) 2200ev_loop (EV_P_ int flags)
1906{ 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
1907 loop_done = EVUNLOOP_CANCEL; 2208 loop_done = EVUNLOOP_CANCEL;
1908 2209
1909 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 */
1910 2211
1911 do 2212 do
1912 { 2213 {
1913#if EV_VERIFY >= 2 2214#if EV_VERIFY >= 2
1914 ev_loop_verify (EV_A); 2215 ev_loop_verify (EV_A);
… …
1927 /* we might have forked, so queue fork handlers */ 2228 /* we might have forked, so queue fork handlers */
1928 if (expect_false (postfork)) 2229 if (expect_false (postfork))
1929 if (forkcnt) 2230 if (forkcnt)
1930 { 2231 {
1931 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2232 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
1932 call_pending (EV_A); 2233 EV_INVOKE_PENDING;
1933 } 2234 }
1934#endif 2235#endif
1935 2236
1936 /* queue prepare watchers (and execute them) */ 2237 /* queue prepare watchers (and execute them) */
1937 if (expect_false (preparecnt)) 2238 if (expect_false (preparecnt))
1938 { 2239 {
1939 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 2240 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1940 call_pending (EV_A); 2241 EV_INVOKE_PENDING;
1941 } 2242 }
1942 2243
1943 if (expect_false (!activecnt)) 2244 if (expect_false (loop_done))
1944 break; 2245 break;
1945 2246
1946 /* we might have forked, so reify kernel state if necessary */ 2247 /* we might have forked, so reify kernel state if necessary */
1947 if (expect_false (postfork)) 2248 if (expect_false (postfork))
1948 loop_fork (EV_A); 2249 loop_fork (EV_A);
… …
1955 ev_tstamp waittime = 0.; 2256 ev_tstamp waittime = 0.;
1956 ev_tstamp sleeptime = 0.; 2257 ev_tstamp sleeptime = 0.;
1957 2258
1958 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 2259 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))
1959 { 2260 {
2261 /* remember old timestamp for io_blocktime calculation */
2262 ev_tstamp prev_mn_now = mn_now;
2263
1960 /* update time to cancel out callback processing overhead */ 2264 /* update time to cancel out callback processing overhead */
1961 time_update (EV_A_ 1e100); 2265 time_update (EV_A_ 1e100);
1962 2266
1963 waittime = MAX_BLOCKTIME; 2267 waittime = MAX_BLOCKTIME;
1964 2268
… …
1974 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;
1975 if (waittime > to) waittime = to; 2279 if (waittime > to) waittime = to;
1976 } 2280 }
1977#endif 2281#endif
1978 2282
2283 /* don't let timeouts decrease the waittime below timeout_blocktime */
1979 if (expect_false (waittime < timeout_blocktime)) 2284 if (expect_false (waittime < timeout_blocktime))
1980 waittime = timeout_blocktime; 2285 waittime = timeout_blocktime;
1981 2286
1982 sleeptime = waittime - backend_fudge; 2287 /* extra check because io_blocktime is commonly 0 */
1983
1984 if (expect_true (sleeptime > io_blocktime)) 2288 if (expect_false (io_blocktime))
1985 sleeptime = io_blocktime;
1986
1987 if (sleeptime)
1988 { 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 {
1989 ev_sleep (sleeptime); 2297 ev_sleep (sleeptime);
1990 waittime -= sleeptime; 2298 waittime -= sleeptime;
2299 }
1991 } 2300 }
1992 } 2301 }
1993 2302
2303#if EV_MINIMAL < 2
1994 ++loop_count; 2304 ++loop_count;
2305#endif
2306 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */
1995 backend_poll (EV_A_ waittime); 2307 backend_poll (EV_A_ waittime);
2308 assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */
1996 2309
1997 /* update ev_rt_now, do magic */ 2310 /* update ev_rt_now, do magic */
1998 time_update (EV_A_ waittime + sleeptime); 2311 time_update (EV_A_ waittime + sleeptime);
1999 } 2312 }
2000 2313
… …
2011 2324
2012 /* queue check watchers, to be executed first */ 2325 /* queue check watchers, to be executed first */
2013 if (expect_false (checkcnt)) 2326 if (expect_false (checkcnt))
2014 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 2327 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
2015 2328
2016 call_pending (EV_A); 2329 EV_INVOKE_PENDING;
2017 } 2330 }
2018 while (expect_true ( 2331 while (expect_true (
2019 activecnt 2332 activecnt
2020 && !loop_done 2333 && !loop_done
2021 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 2334 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK))
2022 )); 2335 ));
2023 2336
2024 if (loop_done == EVUNLOOP_ONE) 2337 if (loop_done == EVUNLOOP_ONE)
2025 loop_done = EVUNLOOP_CANCEL; 2338 loop_done = EVUNLOOP_CANCEL;
2339
2340#if EV_MINIMAL < 2
2341 --loop_depth;
2342#endif
2026} 2343}
2027 2344
2028void 2345void
2029ev_unloop (EV_P_ int how) 2346ev_unloop (EV_P_ int how)
2030{ 2347{
2031 loop_done = how; 2348 loop_done = how;
2032} 2349}
2033 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
2034/*****************************************************************************/ 2388/*****************************************************************************/
2389/* singly-linked list management, used when the expected list length is short */
2035 2390
2036void inline_size 2391inline_size void
2037wlist_add (WL *head, WL elem) 2392wlist_add (WL *head, WL elem)
2038{ 2393{
2039 elem->next = *head; 2394 elem->next = *head;
2040 *head = elem; 2395 *head = elem;
2041} 2396}
2042 2397
2043void inline_size 2398inline_size void
2044wlist_del (WL *head, WL elem) 2399wlist_del (WL *head, WL elem)
2045{ 2400{
2046 while (*head) 2401 while (*head)
2047 { 2402 {
2048 if (*head == elem) 2403 if (expect_true (*head == elem))
2049 { 2404 {
2050 *head = elem->next; 2405 *head = elem->next;
2051 return; 2406 break;
2052 } 2407 }
2053 2408
2054 head = &(*head)->next; 2409 head = &(*head)->next;
2055 } 2410 }
2056} 2411}
2057 2412
2058void inline_speed 2413/* internal, faster, version of ev_clear_pending */
2414inline_speed void
2059clear_pending (EV_P_ W w) 2415clear_pending (EV_P_ W w)
2060{ 2416{
2061 if (w->pending) 2417 if (w->pending)
2062 { 2418 {
2063 pendings [ABSPRI (w)][w->pending - 1].w = 0; 2419 pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w;
2064 w->pending = 0; 2420 w->pending = 0;
2065 } 2421 }
2066} 2422}
2067 2423
2068int 2424int
… …
2072 int pending = w_->pending; 2428 int pending = w_->pending;
2073 2429
2074 if (expect_true (pending)) 2430 if (expect_true (pending))
2075 { 2431 {
2076 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; 2432 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
2433 p->w = (W)&pending_w;
2077 w_->pending = 0; 2434 w_->pending = 0;
2078 p->w = 0;
2079 return p->events; 2435 return p->events;
2080 } 2436 }
2081 else 2437 else
2082 return 0; 2438 return 0;
2083} 2439}
2084 2440
2085void inline_size 2441inline_size void
2086pri_adjust (EV_P_ W w) 2442pri_adjust (EV_P_ W w)
2087{ 2443{
2088 int pri = w->priority; 2444 int pri = ev_priority (w);
2089 pri = pri < EV_MINPRI ? EV_MINPRI : pri; 2445 pri = pri < EV_MINPRI ? EV_MINPRI : pri;
2090 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; 2446 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
2091 w->priority = pri; 2447 ev_set_priority (w, pri);
2092} 2448}
2093 2449
2094void inline_speed 2450inline_speed void
2095ev_start (EV_P_ W w, int active) 2451ev_start (EV_P_ W w, int active)
2096{ 2452{
2097 pri_adjust (EV_A_ w); 2453 pri_adjust (EV_A_ w);
2098 w->active = active; 2454 w->active = active;
2099 ev_ref (EV_A); 2455 ev_ref (EV_A);
2100} 2456}
2101 2457
2102void inline_size 2458inline_size void
2103ev_stop (EV_P_ W w) 2459ev_stop (EV_P_ W w)
2104{ 2460{
2105 ev_unref (EV_A); 2461 ev_unref (EV_A);
2106 w->active = 0; 2462 w->active = 0;
2107} 2463}
… …
2114 int fd = w->fd; 2470 int fd = w->fd;
2115 2471
2116 if (expect_false (ev_is_active (w))) 2472 if (expect_false (ev_is_active (w)))
2117 return; 2473 return;
2118 2474
2119 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))));
2120 2477
2121 EV_FREQUENT_CHECK; 2478 EV_FREQUENT_CHECK;
2122 2479
2123 ev_start (EV_A_ (W)w, 1); 2480 ev_start (EV_A_ (W)w, 1);
2124 array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); 2481 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2125 wlist_add (&anfds[fd].head, (WL)w); 2482 wlist_add (&anfds[fd].head, (WL)w);
2126 2483
2127 fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); 2484 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2128 w->events &= ~EV_IOFDSET; 2485 w->events &= ~EV__IOFDSET;
2129 2486
2130 EV_FREQUENT_CHECK; 2487 EV_FREQUENT_CHECK;
2131} 2488}
2132 2489
2133void noinline 2490void noinline
… …
2135{ 2492{
2136 clear_pending (EV_A_ (W)w); 2493 clear_pending (EV_A_ (W)w);
2137 if (expect_false (!ev_is_active (w))) 2494 if (expect_false (!ev_is_active (w)))
2138 return; 2495 return;
2139 2496
2140 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));
2141 2498
2142 EV_FREQUENT_CHECK; 2499 EV_FREQUENT_CHECK;
2143 2500
2144 wlist_del (&anfds[w->fd].head, (WL)w); 2501 wlist_del (&anfds[w->fd].head, (WL)w);
2145 ev_stop (EV_A_ (W)w); 2502 ev_stop (EV_A_ (W)w);
… …
2155 if (expect_false (ev_is_active (w))) 2512 if (expect_false (ev_is_active (w)))
2156 return; 2513 return;
2157 2514
2158 ev_at (w) += mn_now; 2515 ev_at (w) += mn_now;
2159 2516
2160 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.));
2161 2518
2162 EV_FREQUENT_CHECK; 2519 EV_FREQUENT_CHECK;
2163 2520
2164 ++timercnt; 2521 ++timercnt;
2165 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); 2522 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
… …
2168 ANHE_at_cache (timers [ev_active (w)]); 2525 ANHE_at_cache (timers [ev_active (w)]);
2169 upheap (timers, ev_active (w)); 2526 upheap (timers, ev_active (w));
2170 2527
2171 EV_FREQUENT_CHECK; 2528 EV_FREQUENT_CHECK;
2172 2529
2173 /*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 2530 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2174} 2531}
2175 2532
2176void noinline 2533void noinline
2177ev_timer_stop (EV_P_ ev_timer *w) 2534ev_timer_stop (EV_P_ ev_timer *w)
2178{ 2535{
… …
2183 EV_FREQUENT_CHECK; 2540 EV_FREQUENT_CHECK;
2184 2541
2185 { 2542 {
2186 int active = ev_active (w); 2543 int active = ev_active (w);
2187 2544
2188 assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); 2545 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
2189 2546
2190 --timercnt; 2547 --timercnt;
2191 2548
2192 if (expect_true (active < timercnt + HEAP0)) 2549 if (expect_true (active < timercnt + HEAP0))
2193 { 2550 {
… …
2226 } 2583 }
2227 2584
2228 EV_FREQUENT_CHECK; 2585 EV_FREQUENT_CHECK;
2229} 2586}
2230 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
2231#if EV_PERIODIC_ENABLE 2594#if EV_PERIODIC_ENABLE
2232void noinline 2595void noinline
2233ev_periodic_start (EV_P_ ev_periodic *w) 2596ev_periodic_start (EV_P_ ev_periodic *w)
2234{ 2597{
2235 if (expect_false (ev_is_active (w))) 2598 if (expect_false (ev_is_active (w)))
… …
2237 2600
2238 if (w->reschedule_cb) 2601 if (w->reschedule_cb)
2239 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2602 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2240 else if (w->interval) 2603 else if (w->interval)
2241 { 2604 {
2242 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.));
2243 /* 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 */
2244 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;
2245 } 2608 }
2246 else 2609 else
2247 ev_at (w) = w->offset; 2610 ev_at (w) = w->offset;
… …
2255 ANHE_at_cache (periodics [ev_active (w)]); 2618 ANHE_at_cache (periodics [ev_active (w)]);
2256 upheap (periodics, ev_active (w)); 2619 upheap (periodics, ev_active (w));
2257 2620
2258 EV_FREQUENT_CHECK; 2621 EV_FREQUENT_CHECK;
2259 2622
2260 /*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));*/
2261} 2624}
2262 2625
2263void noinline 2626void noinline
2264ev_periodic_stop (EV_P_ ev_periodic *w) 2627ev_periodic_stop (EV_P_ ev_periodic *w)
2265{ 2628{
… …
2270 EV_FREQUENT_CHECK; 2633 EV_FREQUENT_CHECK;
2271 2634
2272 { 2635 {
2273 int active = ev_active (w); 2636 int active = ev_active (w);
2274 2637
2275 assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); 2638 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
2276 2639
2277 --periodiccnt; 2640 --periodiccnt;
2278 2641
2279 if (expect_true (active < periodiccnt + HEAP0)) 2642 if (expect_true (active < periodiccnt + HEAP0))
2280 { 2643 {
… …
2302#endif 2665#endif
2303 2666
2304void noinline 2667void noinline
2305ev_signal_start (EV_P_ ev_signal *w) 2668ev_signal_start (EV_P_ ev_signal *w)
2306{ 2669{
2307#if EV_MULTIPLICITY
2308 assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2309#endif
2310 if (expect_false (ev_is_active (w))) 2670 if (expect_false (ev_is_active (w)))
2311 return; 2671 return;
2312 2672
2313 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));
2314 2674
2315 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));
2316 2678
2317 EV_FREQUENT_CHECK; 2679 signals [w->signum - 1].loop = EV_A;
2680#endif
2318 2681
2682 EV_FREQUENT_CHECK;
2683
2684#if EV_USE_SIGNALFD
2685 if (sigfd == -2)
2319 { 2686 {
2320#ifndef _WIN32 2687 sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC);
2321 sigset_t full, prev; 2688 if (sigfd < 0 && errno == EINVAL)
2322 sigfillset (&full); 2689 sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */
2323 sigprocmask (SIG_SETMASK, &full, &prev);
2324#endif
2325 2690
2326 array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); 2691 if (sigfd >= 0)
2692 {
2693 fd_intern (sigfd); /* doing it twice will not hurt */
2327 2694
2328#ifndef _WIN32 2695 sigemptyset (&sigfd_set);
2329 sigprocmask (SIG_SETMASK, &prev, 0); 2696
2330#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 }
2331 } 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
2332 2713
2333 ev_start (EV_A_ (W)w, 1); 2714 ev_start (EV_A_ (W)w, 1);
2334 wlist_add (&signals [w->signum - 1].head, (WL)w); 2715 wlist_add (&signals [w->signum - 1].head, (WL)w);
2335 2716
2336 if (!((WL)w)->next) 2717 if (!((WL)w)->next)
2718# if EV_USE_SIGNALFD
2719 if (sigfd < 0) /*TODO*/
2720# endif
2337 { 2721 {
2338#if _WIN32 2722# if _WIN32
2339 signal (w->signum, ev_sighandler); 2723 signal (w->signum, ev_sighandler);
2340#else 2724# else
2341 struct sigaction sa; 2725 struct sigaction sa;
2726
2727 evpipe_init (EV_A);
2728
2342 sa.sa_handler = ev_sighandler; 2729 sa.sa_handler = ev_sighandler;
2343 sigfillset (&sa.sa_mask); 2730 sigfillset (&sa.sa_mask);
2344 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 */
2345 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);
2346#endif 2737#endif
2347 } 2738 }
2348 2739
2349 EV_FREQUENT_CHECK; 2740 EV_FREQUENT_CHECK;
2350} 2741}
2351 2742
2352void noinline 2743void noinline
… …
2360 2751
2361 wlist_del (&signals [w->signum - 1].head, (WL)w); 2752 wlist_del (&signals [w->signum - 1].head, (WL)w);
2362 ev_stop (EV_A_ (W)w); 2753 ev_stop (EV_A_ (W)w);
2363 2754
2364 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
2365 signal (w->signum, SIG_DFL); 2771 signal (w->signum, SIG_DFL);
2772 }
2366 2773
2367 EV_FREQUENT_CHECK; 2774 EV_FREQUENT_CHECK;
2368} 2775}
2369 2776
2370void 2777void
2371ev_child_start (EV_P_ ev_child *w) 2778ev_child_start (EV_P_ ev_child *w)
2372{ 2779{
2373#if EV_MULTIPLICITY 2780#if EV_MULTIPLICITY
2374 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));
2375#endif 2782#endif
2376 if (expect_false (ev_is_active (w))) 2783 if (expect_false (ev_is_active (w)))
2377 return; 2784 return;
2378 2785
2379 EV_FREQUENT_CHECK; 2786 EV_FREQUENT_CHECK;
… …
2404# ifdef _WIN32 2811# ifdef _WIN32
2405# undef lstat 2812# undef lstat
2406# define lstat(a,b) _stati64 (a,b) 2813# define lstat(a,b) _stati64 (a,b)
2407# endif 2814# endif
2408 2815
2409#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 */
2410#define MIN_STAT_INTERVAL 0.1074891 2818#define MIN_STAT_INTERVAL 0.1074891
2411 2819
2412static 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);
2413 2821
2414#if EV_USE_INOTIFY 2822#if EV_USE_INOTIFY
2415# define EV_INOTIFY_BUFSIZE 8192 2823# define EV_INOTIFY_BUFSIZE 8192
… …
2419{ 2827{
2420 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);
2421 2829
2422 if (w->wd < 0) 2830 if (w->wd < 0)
2423 { 2831 {
2832 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2424 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 */
2425 2834
2426 /* monitor some parent directory for speedup hints */ 2835 /* monitor some parent directory for speedup hints */
2427 /* note that exceeding the hardcoded limit is not a correctness issue, */ 2836 /* note that exceeding the hardcoded path limit is not a correctness issue, */
2428 /* but an efficiency issue only */ 2837 /* but an efficiency issue only */
2429 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) 2838 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2430 { 2839 {
2431 char path [4096]; 2840 char path [4096];
2432 strcpy (path, w->path); 2841 strcpy (path, w->path);
… …
2436 int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF 2845 int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF
2437 | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); 2846 | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);
2438 2847
2439 char *pend = strrchr (path, '/'); 2848 char *pend = strrchr (path, '/');
2440 2849
2441 if (!pend) 2850 if (!pend || pend == path)
2442 break; /* whoops, no '/', complain to your admin */ 2851 break;
2443 2852
2444 *pend = 0; 2853 *pend = 0;
2445 w->wd = inotify_add_watch (fs_fd, path, mask); 2854 w->wd = inotify_add_watch (fs_fd, path, mask);
2446 } 2855 }
2447 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 2856 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2448 } 2857 }
2449 } 2858 }
2450 else
2451 ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */
2452 2859
2453 if (w->wd >= 0) 2860 if (w->wd >= 0)
2861 {
2454 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 }
2455} 2881}
2456 2882
2457static void noinline 2883static void noinline
2458infy_del (EV_P_ ev_stat *w) 2884infy_del (EV_P_ ev_stat *w)
2459{ 2885{
… …
2473 2899
2474static void noinline 2900static void noinline
2475infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 2901infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2476{ 2902{
2477 if (slot < 0) 2903 if (slot < 0)
2478 /* overflow, need to check for all hahs slots */ 2904 /* overflow, need to check for all hash slots */
2479 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 2905 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
2480 infy_wd (EV_A_ slot, wd, ev); 2906 infy_wd (EV_A_ slot, wd, ev);
2481 else 2907 else
2482 { 2908 {
2483 WL w_; 2909 WL w_;
… …
2489 2915
2490 if (w->wd == wd || wd == -1) 2916 if (w->wd == wd || wd == -1)
2491 { 2917 {
2492 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 2918 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2493 { 2919 {
2920 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
2494 w->wd = -1; 2921 w->wd = -1;
2495 infy_add (EV_A_ w); /* re-add, no matter what */ 2922 infy_add (EV_A_ w); /* re-add, no matter what */
2496 } 2923 }
2497 2924
2498 stat_timer_cb (EV_A_ &w->timer, 0); 2925 stat_timer_cb (EV_A_ &w->timer, 0);
… …
2511 2938
2512 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)
2513 infy_wd (EV_A_ ev->wd, ev->wd, ev); 2940 infy_wd (EV_A_ ev->wd, ev->wd, ev);
2514} 2941}
2515 2942
2516void 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
2517infy_init (EV_P) 2967infy_init (EV_P)
2518{ 2968{
2519 if (fs_fd != -2) 2969 if (fs_fd != -2)
2520 return; 2970 return;
2971
2972 fs_fd = -1;
2973
2974 check_2625 (EV_A);
2521 2975
2522 fs_fd = inotify_init (); 2976 fs_fd = inotify_init ();
2523 2977
2524 if (fs_fd >= 0) 2978 if (fs_fd >= 0)
2525 { 2979 {
… …
2527 ev_set_priority (&fs_w, EV_MAXPRI); 2981 ev_set_priority (&fs_w, EV_MAXPRI);
2528 ev_io_start (EV_A_ &fs_w); 2982 ev_io_start (EV_A_ &fs_w);
2529 } 2983 }
2530} 2984}
2531 2985
2532void inline_size 2986inline_size void
2533infy_fork (EV_P) 2987infy_fork (EV_P)
2534{ 2988{
2535 int slot; 2989 int slot;
2536 2990
2537 if (fs_fd < 0) 2991 if (fs_fd < 0)
… …
2553 w->wd = -1; 3007 w->wd = -1;
2554 3008
2555 if (fs_fd >= 0) 3009 if (fs_fd >= 0)
2556 infy_add (EV_A_ w); /* re-add, no matter what */ 3010 infy_add (EV_A_ w); /* re-add, no matter what */
2557 else 3011 else
2558 ev_timer_start (EV_A_ &w->timer); 3012 ev_timer_again (EV_A_ &w->timer);
2559 } 3013 }
2560
2561 } 3014 }
2562} 3015}
2563 3016
3017#endif
3018
3019#ifdef _WIN32
3020# define EV_LSTAT(p,b) _stati64 (p, b)
3021#else
3022# define EV_LSTAT(p,b) lstat (p, b)
2564#endif 3023#endif
2565 3024
2566void 3025void
2567ev_stat_stat (EV_P_ ev_stat *w) 3026ev_stat_stat (EV_P_ ev_stat *w)
2568{ 3027{
… …
2595 || w->prev.st_atime != w->attr.st_atime 3054 || w->prev.st_atime != w->attr.st_atime
2596 || w->prev.st_mtime != w->attr.st_mtime 3055 || w->prev.st_mtime != w->attr.st_mtime
2597 || w->prev.st_ctime != w->attr.st_ctime 3056 || w->prev.st_ctime != w->attr.st_ctime
2598 ) { 3057 ) {
2599 #if EV_USE_INOTIFY 3058 #if EV_USE_INOTIFY
3059 if (fs_fd >= 0)
3060 {
2600 infy_del (EV_A_ w); 3061 infy_del (EV_A_ w);
2601 infy_add (EV_A_ w); 3062 infy_add (EV_A_ w);
2602 ev_stat_stat (EV_A_ w); /* avoid race... */ 3063 ev_stat_stat (EV_A_ w); /* avoid race... */
3064 }
2603 #endif 3065 #endif
2604 3066
2605 ev_feed_event (EV_A_ w, EV_STAT); 3067 ev_feed_event (EV_A_ w, EV_STAT);
2606 } 3068 }
2607} 3069}
… …
2610ev_stat_start (EV_P_ ev_stat *w) 3072ev_stat_start (EV_P_ ev_stat *w)
2611{ 3073{
2612 if (expect_false (ev_is_active (w))) 3074 if (expect_false (ev_is_active (w)))
2613 return; 3075 return;
2614 3076
2615 /* since we use memcmp, we need to clear any padding data etc. */
2616 memset (&w->prev, 0, sizeof (ev_statdata));
2617 memset (&w->attr, 0, sizeof (ev_statdata));
2618
2619 ev_stat_stat (EV_A_ w); 3077 ev_stat_stat (EV_A_ w);
2620 3078
3079 if (w->interval < MIN_STAT_INTERVAL && w->interval)
2621 if (w->interval < MIN_STAT_INTERVAL) 3080 w->interval = MIN_STAT_INTERVAL;
2622 w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
2623 3081
2624 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);
2625 ev_set_priority (&w->timer, ev_priority (w)); 3083 ev_set_priority (&w->timer, ev_priority (w));
2626 3084
2627#if EV_USE_INOTIFY 3085#if EV_USE_INOTIFY
2628 infy_init (EV_A); 3086 infy_init (EV_A);
2629 3087
2630 if (fs_fd >= 0) 3088 if (fs_fd >= 0)
2631 infy_add (EV_A_ w); 3089 infy_add (EV_A_ w);
2632 else 3090 else
2633#endif 3091#endif
2634 ev_timer_start (EV_A_ &w->timer); 3092 ev_timer_again (EV_A_ &w->timer);
2635 3093
2636 ev_start (EV_A_ (W)w, 1); 3094 ev_start (EV_A_ (W)w, 1);
2637 3095
2638 EV_FREQUENT_CHECK; 3096 EV_FREQUENT_CHECK;
2639} 3097}
… …
2799embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 3257embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
2800{ 3258{
2801 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); 3259 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
2802 3260
2803 { 3261 {
2804 struct ev_loop *loop = w->other; 3262 EV_P = w->other;
2805 3263
2806 while (fdchangecnt) 3264 while (fdchangecnt)
2807 { 3265 {
2808 fd_reify (EV_A); 3266 fd_reify (EV_A);
2809 ev_loop (EV_A_ EVLOOP_NONBLOCK); 3267 ev_loop (EV_A_ EVLOOP_NONBLOCK);
2810 } 3268 }
2811 } 3269 }
2812} 3270}
2813 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
2814#if 0 3289#if 0
2815static void 3290static void
2816embed_idle_cb (EV_P_ ev_idle *idle, int revents) 3291embed_idle_cb (EV_P_ ev_idle *idle, int revents)
2817{ 3292{
2818 ev_idle_stop (EV_A_ idle); 3293 ev_idle_stop (EV_A_ idle);
… …
2824{ 3299{
2825 if (expect_false (ev_is_active (w))) 3300 if (expect_false (ev_is_active (w)))
2826 return; 3301 return;
2827 3302
2828 { 3303 {
2829 struct ev_loop *loop = w->other; 3304 EV_P = w->other;
2830 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 ()));
2831 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);
2832 } 3307 }
2833 3308
2834 EV_FREQUENT_CHECK; 3309 EV_FREQUENT_CHECK;
2835 3310
… …
2838 3313
2839 ev_prepare_init (&w->prepare, embed_prepare_cb); 3314 ev_prepare_init (&w->prepare, embed_prepare_cb);
2840 ev_set_priority (&w->prepare, EV_MINPRI); 3315 ev_set_priority (&w->prepare, EV_MINPRI);
2841 ev_prepare_start (EV_A_ &w->prepare); 3316 ev_prepare_start (EV_A_ &w->prepare);
2842 3317
3318 ev_fork_init (&w->fork, embed_fork_cb);
3319 ev_fork_start (EV_A_ &w->fork);
3320
2843 /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ 3321 /*ev_idle_init (&w->idle, e,bed_idle_cb);*/
2844 3322
2845 ev_start (EV_A_ (W)w, 1); 3323 ev_start (EV_A_ (W)w, 1);
2846 3324
2847 EV_FREQUENT_CHECK; 3325 EV_FREQUENT_CHECK;
… …
2854 if (expect_false (!ev_is_active (w))) 3332 if (expect_false (!ev_is_active (w)))
2855 return; 3333 return;
2856 3334
2857 EV_FREQUENT_CHECK; 3335 EV_FREQUENT_CHECK;
2858 3336
2859 ev_io_stop (EV_A_ &w->io); 3337 ev_io_stop (EV_A_ &w->io);
2860 ev_prepare_stop (EV_A_ &w->prepare); 3338 ev_prepare_stop (EV_A_ &w->prepare);
2861 3339 ev_fork_stop (EV_A_ &w->fork);
2862 ev_stop (EV_A_ (W)w);
2863 3340
2864 EV_FREQUENT_CHECK; 3341 EV_FREQUENT_CHECK;
2865} 3342}
2866#endif 3343#endif
2867 3344
… …
2944 3421
2945void 3422void
2946ev_async_send (EV_P_ ev_async *w) 3423ev_async_send (EV_P_ ev_async *w)
2947{ 3424{
2948 w->sent = 1; 3425 w->sent = 1;
2949 evpipe_write (EV_A_ &gotasync); 3426 evpipe_write (EV_A_ &async_pending);
2950} 3427}
2951#endif 3428#endif
2952 3429
2953/*****************************************************************************/ 3430/*****************************************************************************/
2954 3431
… …
2964once_cb (EV_P_ struct ev_once *once, int revents) 3441once_cb (EV_P_ struct ev_once *once, int revents)
2965{ 3442{
2966 void (*cb)(int revents, void *arg) = once->cb; 3443 void (*cb)(int revents, void *arg) = once->cb;
2967 void *arg = once->arg; 3444 void *arg = once->arg;
2968 3445
2969 ev_io_stop (EV_A_ &once->io); 3446 ev_io_stop (EV_A_ &once->io);
2970 ev_timer_stop (EV_A_ &once->to); 3447 ev_timer_stop (EV_A_ &once->to);
2971 ev_free (once); 3448 ev_free (once);
2972 3449
2973 cb (revents, arg); 3450 cb (revents, arg);
2974} 3451}
2975 3452
2976static void 3453static void
2977once_cb_io (EV_P_ ev_io *w, int revents) 3454once_cb_io (EV_P_ ev_io *w, int revents)
2978{ 3455{
2979 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));
2980} 3459}
2981 3460
2982static void 3461static void
2983once_cb_to (EV_P_ ev_timer *w, int revents) 3462once_cb_to (EV_P_ ev_timer *w, int revents)
2984{ 3463{
2985 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));
2986} 3467}
2987 3468
2988void 3469void
2989ev_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)
2990{ 3471{
… …
3012 ev_timer_set (&once->to, timeout, 0.); 3493 ev_timer_set (&once->to, timeout, 0.);
3013 ev_timer_start (EV_A_ &once->to); 3494 ev_timer_start (EV_A_ &once->to);
3014 } 3495 }
3015} 3496}
3016 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
3017#if EV_MULTIPLICITY 3606#if EV_MULTIPLICITY
3018 #include "ev_wrap.h" 3607 #include "ev_wrap.h"
3019#endif 3608#endif
3020 3609
3021#ifdef __cplusplus 3610#ifdef __cplusplus

Diff Legend

– Removed lines
+ Added lines
< Changed lines
> Changed lines