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Comparing libev/ev.c (file contents):
Revision 1.250 by root, Thu May 22 02:44:57 2008 UTC vs.
Revision 1.312 by root, Wed Aug 12 18:48:17 2009 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
… …
47# include EV_CONFIG_H 47# include EV_CONFIG_H
48# else 48# else
49# include "config.h" 49# include "config.h"
50# endif 50# endif
51 51
52# if HAVE_CLOCK_SYSCALL
53# ifndef EV_USE_CLOCK_SYSCALL
54# define EV_USE_CLOCK_SYSCALL 1
55# ifndef EV_USE_REALTIME
56# define EV_USE_REALTIME 0
57# endif
58# ifndef EV_USE_MONOTONIC
59# define EV_USE_MONOTONIC 1
60# endif
61# endif
62# elif !defined(EV_USE_CLOCK_SYSCALL)
63# define EV_USE_CLOCK_SYSCALL 0
64# endif
65
52# if HAVE_CLOCK_GETTIME 66# if HAVE_CLOCK_GETTIME
53# ifndef EV_USE_MONOTONIC 67# ifndef EV_USE_MONOTONIC
54# define EV_USE_MONOTONIC 1 68# define EV_USE_MONOTONIC 1
55# endif 69# endif
56# ifndef EV_USE_REALTIME 70# ifndef EV_USE_REALTIME
57# define EV_USE_REALTIME 1 71# define EV_USE_REALTIME 0
58# endif 72# endif
59# else 73# else
60# ifndef EV_USE_MONOTONIC 74# ifndef EV_USE_MONOTONIC
61# define EV_USE_MONOTONIC 0 75# define EV_USE_MONOTONIC 0
62# endif 76# endif
… …
119# else 133# else
120# define EV_USE_INOTIFY 0 134# define EV_USE_INOTIFY 0
121# endif 135# endif
122# endif 136# endif
123 137
138# ifndef EV_USE_SIGNALFD
139# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H
140# define EV_USE_SIGNALFD 1
141# else
142# define EV_USE_SIGNALFD 0
143# endif
144# endif
145
124# ifndef EV_USE_EVENTFD 146# ifndef EV_USE_EVENTFD
125# if HAVE_EVENTFD 147# if HAVE_EVENTFD
126# define EV_USE_EVENTFD 1 148# define EV_USE_EVENTFD 1
127# else 149# else
128# define EV_USE_EVENTFD 0 150# define EV_USE_EVENTFD 0
… …
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# ifdef O_CLOEXEC
392# define EFD_CLOEXEC O_CLOEXEC
393# else
394# define EFD_CLOEXEC 02000000
395# endif
396# endif
292# ifdef __cplusplus 397# ifdef __cplusplus
293extern "C" { 398extern "C" {
294# endif 399# endif
295int eventfd (unsigned int initval, int flags); 400int eventfd (unsigned int initval, int flags);
296# ifdef __cplusplus 401# ifdef __cplusplus
297} 402}
298# endif 403# endif
404#endif
405
406#if EV_USE_SIGNALFD
407# include <sys/signalfd.h>
299#endif 408#endif
300 409
301/**/ 410/**/
302 411
303#if EV_VERIFY >= 3 412#if EV_VERIFY >= 3
… …
339# define inline_speed static noinline 448# define inline_speed static noinline
340#else 449#else
341# define inline_speed static inline 450# define inline_speed static inline
342#endif 451#endif
343 452
344#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 453#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
454
455#if EV_MINPRI == EV_MAXPRI
456# define ABSPRI(w) (((W)w), 0)
457#else
345#define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 458# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
459#endif
346 460
347#define EMPTY /* required for microsofts broken pseudo-c compiler */ 461#define EMPTY /* required for microsofts broken pseudo-c compiler */
348#define EMPTY2(a,b) /* used to suppress some warnings */ 462#define EMPTY2(a,b) /* used to suppress some warnings */
349 463
350typedef ev_watcher *W; 464typedef ev_watcher *W;
… …
352typedef ev_watcher_time *WT; 466typedef ev_watcher_time *WT;
353 467
354#define ev_active(w) ((W)(w))->active 468#define ev_active(w) ((W)(w))->active
355#define ev_at(w) ((WT)(w))->at 469#define ev_at(w) ((WT)(w))->at
356 470
357#if EV_USE_MONOTONIC 471#if EV_USE_REALTIME
358/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 472/* sig_atomic_t is used to avoid per-thread variables or locking but still */
359/* giving it a reasonably high chance of working on typical architetcures */ 473/* giving it a reasonably high chance of working on typical architetcures */
474static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
475#endif
476
477#if EV_USE_MONOTONIC
360static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 478static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
361#endif 479#endif
362 480
363#ifdef _WIN32 481#ifdef _WIN32
364# include "ev_win32.c" 482# include "ev_win32.c"
… …
373{ 491{
374 syserr_cb = cb; 492 syserr_cb = cb;
375} 493}
376 494
377static void noinline 495static void noinline
378syserr (const char *msg) 496ev_syserr (const char *msg)
379{ 497{
380 if (!msg) 498 if (!msg)
381 msg = "(libev) system error"; 499 msg = "(libev) system error";
382 500
383 if (syserr_cb) 501 if (syserr_cb)
… …
429#define ev_malloc(size) ev_realloc (0, (size)) 547#define ev_malloc(size) ev_realloc (0, (size))
430#define ev_free(ptr) ev_realloc ((ptr), 0) 548#define ev_free(ptr) ev_realloc ((ptr), 0)
431 549
432/*****************************************************************************/ 550/*****************************************************************************/
433 551
552/* set in reify when reification needed */
553#define EV_ANFD_REIFY 1
554
555/* file descriptor info structure */
434typedef struct 556typedef struct
435{ 557{
436 WL head; 558 WL head;
437 unsigned char events; 559 unsigned char events; /* the events watched for */
560 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
561 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
438 unsigned char reify; 562 unsigned char unused;
563#if EV_USE_EPOLL
564 unsigned int egen; /* generation counter to counter epoll bugs */
565#endif
439#if EV_SELECT_IS_WINSOCKET 566#if EV_SELECT_IS_WINSOCKET
440 SOCKET handle; 567 SOCKET handle;
441#endif 568#endif
442} ANFD; 569} ANFD;
443 570
571/* stores the pending event set for a given watcher */
444typedef struct 572typedef struct
445{ 573{
446 W w; 574 W w;
447 int events; 575 int events; /* the pending event set for the given watcher */
448} ANPENDING; 576} ANPENDING;
449 577
450#if EV_USE_INOTIFY 578#if EV_USE_INOTIFY
451/* hash table entry per inotify-id */ 579/* hash table entry per inotify-id */
452typedef struct 580typedef struct
… …
455} ANFS; 583} ANFS;
456#endif 584#endif
457 585
458/* Heap Entry */ 586/* Heap Entry */
459#if EV_HEAP_CACHE_AT 587#if EV_HEAP_CACHE_AT
588 /* a heap element */
460 typedef struct { 589 typedef struct {
461 ev_tstamp at; 590 ev_tstamp at;
462 WT w; 591 WT w;
463 } ANHE; 592 } ANHE;
464 593
465 #define ANHE_w(he) (he).w /* access watcher, read-write */ 594 #define ANHE_w(he) (he).w /* access watcher, read-write */
466 #define ANHE_at(he) (he).at /* access cached at, read-only */ 595 #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 */ 596 #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */
468#else 597#else
598 /* a heap element */
469 typedef WT ANHE; 599 typedef WT ANHE;
470 600
471 #define ANHE_w(he) (he) 601 #define ANHE_w(he) (he)
472 #define ANHE_at(he) (he)->at 602 #define ANHE_at(he) (he)->at
473 #define ANHE_at_cache(he) 603 #define ANHE_at_cache(he)
… …
497 627
498 static int ev_default_loop_ptr; 628 static int ev_default_loop_ptr;
499 629
500#endif 630#endif
501 631
632#if EV_MINIMAL < 2
633# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
634# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
635# define EV_INVOKE_PENDING invoke_cb (EV_A)
636#else
637# define EV_RELEASE_CB (void)0
638# define EV_ACQUIRE_CB (void)0
639# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
640#endif
641
642#define EVUNLOOP_RECURSE 0x80
643
502/*****************************************************************************/ 644/*****************************************************************************/
503 645
646#ifndef EV_HAVE_EV_TIME
504ev_tstamp 647ev_tstamp
505ev_time (void) 648ev_time (void)
506{ 649{
507#if EV_USE_REALTIME 650#if EV_USE_REALTIME
651 if (expect_true (have_realtime))
652 {
508 struct timespec ts; 653 struct timespec ts;
509 clock_gettime (CLOCK_REALTIME, &ts); 654 clock_gettime (CLOCK_REALTIME, &ts);
510 return ts.tv_sec + ts.tv_nsec * 1e-9; 655 return ts.tv_sec + ts.tv_nsec * 1e-9;
511#else 656 }
657#endif
658
512 struct timeval tv; 659 struct timeval tv;
513 gettimeofday (&tv, 0); 660 gettimeofday (&tv, 0);
514 return tv.tv_sec + tv.tv_usec * 1e-6; 661 return tv.tv_sec + tv.tv_usec * 1e-6;
515#endif
516} 662}
663#endif
517 664
518ev_tstamp inline_size 665inline_size ev_tstamp
519get_clock (void) 666get_clock (void)
520{ 667{
521#if EV_USE_MONOTONIC 668#if EV_USE_MONOTONIC
522 if (expect_true (have_monotonic)) 669 if (expect_true (have_monotonic))
523 { 670 {
… …
556 struct timeval tv; 703 struct timeval tv;
557 704
558 tv.tv_sec = (time_t)delay; 705 tv.tv_sec = (time_t)delay;
559 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); 706 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
560 707
708 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
709 /* something not guaranteed by newer posix versions, but guaranteed */
710 /* by older ones */
561 select (0, 0, 0, 0, &tv); 711 select (0, 0, 0, 0, &tv);
562#endif 712#endif
563 } 713 }
564} 714}
565 715
566/*****************************************************************************/ 716/*****************************************************************************/
567 717
568#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ 718#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
569 719
570int inline_size 720/* find a suitable new size for the given array, */
721/* hopefully by rounding to a ncie-to-malloc size */
722inline_size int
571array_nextsize (int elem, int cur, int cnt) 723array_nextsize (int elem, int cur, int cnt)
572{ 724{
573 int ncur = cur + 1; 725 int ncur = cur + 1;
574 726
575 do 727 do
… …
592array_realloc (int elem, void *base, int *cur, int cnt) 744array_realloc (int elem, void *base, int *cur, int cnt)
593{ 745{
594 *cur = array_nextsize (elem, *cur, cnt); 746 *cur = array_nextsize (elem, *cur, cnt);
595 return ev_realloc (base, elem * *cur); 747 return ev_realloc (base, elem * *cur);
596} 748}
749
750#define array_init_zero(base,count) \
751 memset ((void *)(base), 0, sizeof (*(base)) * (count))
597 752
598#define array_needsize(type,base,cur,cnt,init) \ 753#define array_needsize(type,base,cur,cnt,init) \
599 if (expect_false ((cnt) > (cur))) \ 754 if (expect_false ((cnt) > (cur))) \
600 { \ 755 { \
601 int ocur_ = (cur); \ 756 int ocur_ = (cur); \
… …
613 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ 768 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
614 } 769 }
615#endif 770#endif
616 771
617#define array_free(stem, idx) \ 772#define array_free(stem, idx) \
618 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; 773 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
619 774
620/*****************************************************************************/ 775/*****************************************************************************/
776
777/* dummy callback for pending events */
778static void noinline
779pendingcb (EV_P_ ev_prepare *w, int revents)
780{
781}
621 782
622void noinline 783void noinline
623ev_feed_event (EV_P_ void *w, int revents) 784ev_feed_event (EV_P_ void *w, int revents)
624{ 785{
625 W w_ = (W)w; 786 W w_ = (W)w;
… …
634 pendings [pri][w_->pending - 1].w = w_; 795 pendings [pri][w_->pending - 1].w = w_;
635 pendings [pri][w_->pending - 1].events = revents; 796 pendings [pri][w_->pending - 1].events = revents;
636 } 797 }
637} 798}
638 799
639void inline_speed 800inline_speed void
801feed_reverse (EV_P_ W w)
802{
803 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2);
804 rfeeds [rfeedcnt++] = w;
805}
806
807inline_size void
808feed_reverse_done (EV_P_ int revents)
809{
810 do
811 ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents);
812 while (rfeedcnt);
813}
814
815inline_speed void
640queue_events (EV_P_ W *events, int eventcnt, int type) 816queue_events (EV_P_ W *events, int eventcnt, int type)
641{ 817{
642 int i; 818 int i;
643 819
644 for (i = 0; i < eventcnt; ++i) 820 for (i = 0; i < eventcnt; ++i)
645 ev_feed_event (EV_A_ events [i], type); 821 ev_feed_event (EV_A_ events [i], type);
646} 822}
647 823
648/*****************************************************************************/ 824/*****************************************************************************/
649 825
650void inline_size 826inline_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) 827fd_event_nc (EV_P_ int fd, int revents)
665{ 828{
666 ANFD *anfd = anfds + fd; 829 ANFD *anfd = anfds + fd;
667 ev_io *w; 830 ev_io *w;
668 831
669 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 832 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
673 if (ev) 836 if (ev)
674 ev_feed_event (EV_A_ (W)w, ev); 837 ev_feed_event (EV_A_ (W)w, ev);
675 } 838 }
676} 839}
677 840
841/* do not submit kernel events for fds that have reify set */
842/* because that means they changed while we were polling for new events */
843inline_speed void
844fd_event (EV_P_ int fd, int revents)
845{
846 ANFD *anfd = anfds + fd;
847
848 if (expect_true (!anfd->reify))
849 fd_event_nc (EV_A_ fd, revents);
850}
851
678void 852void
679ev_feed_fd_event (EV_P_ int fd, int revents) 853ev_feed_fd_event (EV_P_ int fd, int revents)
680{ 854{
681 if (fd >= 0 && fd < anfdmax) 855 if (fd >= 0 && fd < anfdmax)
682 fd_event (EV_A_ fd, revents); 856 fd_event_nc (EV_A_ fd, revents);
683} 857}
684 858
685void inline_size 859/* make sure the external fd watch events are in-sync */
860/* with the kernel/libev internal state */
861inline_size void
686fd_reify (EV_P) 862fd_reify (EV_P)
687{ 863{
688 int i; 864 int i;
689 865
690 for (i = 0; i < fdchangecnt; ++i) 866 for (i = 0; i < fdchangecnt; ++i)
… …
699 events |= (unsigned char)w->events; 875 events |= (unsigned char)w->events;
700 876
701#if EV_SELECT_IS_WINSOCKET 877#if EV_SELECT_IS_WINSOCKET
702 if (events) 878 if (events)
703 { 879 {
704 unsigned long argp; 880 unsigned long arg;
705 #ifdef EV_FD_TO_WIN32_HANDLE 881 #ifdef EV_FD_TO_WIN32_HANDLE
706 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 882 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
707 #else 883 #else
708 anfd->handle = _get_osfhandle (fd); 884 anfd->handle = _get_osfhandle (fd);
709 #endif 885 #endif
710 assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); 886 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
711 } 887 }
712#endif 888#endif
713 889
714 { 890 {
715 unsigned char o_events = anfd->events; 891 unsigned char o_events = anfd->events;
716 unsigned char o_reify = anfd->reify; 892 unsigned char o_reify = anfd->reify;
717 893
718 anfd->reify = 0; 894 anfd->reify = 0;
719 anfd->events = events; 895 anfd->events = events;
720 896
721 if (o_events != events || o_reify & EV_IOFDSET) 897 if (o_events != events || o_reify & EV__IOFDSET)
722 backend_modify (EV_A_ fd, o_events, events); 898 backend_modify (EV_A_ fd, o_events, events);
723 } 899 }
724 } 900 }
725 901
726 fdchangecnt = 0; 902 fdchangecnt = 0;
727} 903}
728 904
729void inline_size 905/* something about the given fd changed */
906inline_size void
730fd_change (EV_P_ int fd, int flags) 907fd_change (EV_P_ int fd, int flags)
731{ 908{
732 unsigned char reify = anfds [fd].reify; 909 unsigned char reify = anfds [fd].reify;
733 anfds [fd].reify |= flags; 910 anfds [fd].reify |= flags;
734 911
… …
738 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 915 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
739 fdchanges [fdchangecnt - 1] = fd; 916 fdchanges [fdchangecnt - 1] = fd;
740 } 917 }
741} 918}
742 919
743void inline_speed 920/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
921inline_speed void
744fd_kill (EV_P_ int fd) 922fd_kill (EV_P_ int fd)
745{ 923{
746 ev_io *w; 924 ev_io *w;
747 925
748 while ((w = (ev_io *)anfds [fd].head)) 926 while ((w = (ev_io *)anfds [fd].head))
… …
750 ev_io_stop (EV_A_ w); 928 ev_io_stop (EV_A_ w);
751 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 929 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
752 } 930 }
753} 931}
754 932
755int inline_size 933/* check whether the given fd is atcually valid, for error recovery */
934inline_size int
756fd_valid (int fd) 935fd_valid (int fd)
757{ 936{
758#ifdef _WIN32 937#ifdef _WIN32
759 return _get_osfhandle (fd) != -1; 938 return _get_osfhandle (fd) != -1;
760#else 939#else
… …
768{ 947{
769 int fd; 948 int fd;
770 949
771 for (fd = 0; fd < anfdmax; ++fd) 950 for (fd = 0; fd < anfdmax; ++fd)
772 if (anfds [fd].events) 951 if (anfds [fd].events)
773 if (!fd_valid (fd) == -1 && errno == EBADF) 952 if (!fd_valid (fd) && errno == EBADF)
774 fd_kill (EV_A_ fd); 953 fd_kill (EV_A_ fd);
775} 954}
776 955
777/* called on ENOMEM in select/poll to kill some fds and retry */ 956/* called on ENOMEM in select/poll to kill some fds and retry */
778static void noinline 957static void noinline
… …
782 961
783 for (fd = anfdmax; fd--; ) 962 for (fd = anfdmax; fd--; )
784 if (anfds [fd].events) 963 if (anfds [fd].events)
785 { 964 {
786 fd_kill (EV_A_ fd); 965 fd_kill (EV_A_ fd);
787 return; 966 break;
788 } 967 }
789} 968}
790 969
791/* usually called after fork if backend needs to re-arm all fds from scratch */ 970/* usually called after fork if backend needs to re-arm all fds from scratch */
792static void noinline 971static void noinline
… …
796 975
797 for (fd = 0; fd < anfdmax; ++fd) 976 for (fd = 0; fd < anfdmax; ++fd)
798 if (anfds [fd].events) 977 if (anfds [fd].events)
799 { 978 {
800 anfds [fd].events = 0; 979 anfds [fd].events = 0;
980 anfds [fd].emask = 0;
801 fd_change (EV_A_ fd, EV_IOFDSET | 1); 981 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
802 } 982 }
803} 983}
804 984
805/*****************************************************************************/ 985/*****************************************************************************/
806 986
… …
822#define HEAP0 (DHEAP - 1) /* index of first element in heap */ 1002#define HEAP0 (DHEAP - 1) /* index of first element in heap */
823#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) 1003#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0)
824#define UPHEAP_DONE(p,k) ((p) == (k)) 1004#define UPHEAP_DONE(p,k) ((p) == (k))
825 1005
826/* away from the root */ 1006/* away from the root */
827void inline_speed 1007inline_speed void
828downheap (ANHE *heap, int N, int k) 1008downheap (ANHE *heap, int N, int k)
829{ 1009{
830 ANHE he = heap [k]; 1010 ANHE he = heap [k];
831 ANHE *E = heap + N + HEAP0; 1011 ANHE *E = heap + N + HEAP0;
832 1012
… …
872#define HEAP0 1 1052#define HEAP0 1
873#define HPARENT(k) ((k) >> 1) 1053#define HPARENT(k) ((k) >> 1)
874#define UPHEAP_DONE(p,k) (!(p)) 1054#define UPHEAP_DONE(p,k) (!(p))
875 1055
876/* away from the root */ 1056/* away from the root */
877void inline_speed 1057inline_speed void
878downheap (ANHE *heap, int N, int k) 1058downheap (ANHE *heap, int N, int k)
879{ 1059{
880 ANHE he = heap [k]; 1060 ANHE he = heap [k];
881 1061
882 for (;;) 1062 for (;;)
883 { 1063 {
884 int c = k << 1; 1064 int c = k << 1;
885 1065
886 if (c > N + HEAP0 - 1) 1066 if (c >= N + HEAP0)
887 break; 1067 break;
888 1068
889 c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) 1069 c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])
890 ? 1 : 0; 1070 ? 1 : 0;
891 1071
… …
902 ev_active (ANHE_w (he)) = k; 1082 ev_active (ANHE_w (he)) = k;
903} 1083}
904#endif 1084#endif
905 1085
906/* towards the root */ 1086/* towards the root */
907void inline_speed 1087inline_speed void
908upheap (ANHE *heap, int k) 1088upheap (ANHE *heap, int k)
909{ 1089{
910 ANHE he = heap [k]; 1090 ANHE he = heap [k];
911 1091
912 for (;;) 1092 for (;;)
… …
923 1103
924 heap [k] = he; 1104 heap [k] = he;
925 ev_active (ANHE_w (he)) = k; 1105 ev_active (ANHE_w (he)) = k;
926} 1106}
927 1107
928void inline_size 1108/* move an element suitably so it is in a correct place */
1109inline_size void
929adjustheap (ANHE *heap, int N, int k) 1110adjustheap (ANHE *heap, int N, int k)
930{ 1111{
931 if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) 1112 if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)]))
932 upheap (heap, k); 1113 upheap (heap, k);
933 else 1114 else
934 downheap (heap, N, k); 1115 downheap (heap, N, k);
935} 1116}
936 1117
937/* rebuild the heap: this function is used only once and executed rarely */ 1118/* rebuild the heap: this function is used only once and executed rarely */
938void inline_size 1119inline_size void
939reheap (ANHE *heap, int N) 1120reheap (ANHE *heap, int N)
940{ 1121{
941 int i; 1122 int i;
1123
942 /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ 1124 /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */
943 /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */ 1125 /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */
944 for (i = 0; i < N; ++i) 1126 for (i = 0; i < N; ++i)
945 upheap (heap, i + HEAP0); 1127 upheap (heap, i + HEAP0);
946} 1128}
947 1129
948#if EV_VERIFY
949static void
950checkheap (ANHE *heap, int N)
951{
952 int i;
953
954 for (i = HEAP0; i < N + HEAP0; ++i)
955 {
956 assert (("active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i));
957 assert (("heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i])));
958 assert (("heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i]))));
959 }
960}
961#endif
962
963/*****************************************************************************/ 1130/*****************************************************************************/
964 1131
1132/* associate signal watchers to a signal signal */
965typedef struct 1133typedef struct
966{ 1134{
1135 EV_ATOMIC_T pending;
1136#if EV_MULTIPLICITY
1137 EV_P;
1138#endif
967 WL head; 1139 WL head;
968 EV_ATOMIC_T gotsig;
969} ANSIG; 1140} ANSIG;
970 1141
971static ANSIG *signals; 1142static ANSIG signals [EV_NSIG - 1];
972static int signalmax;
973
974static EV_ATOMIC_T gotsig;
975
976void inline_size
977signals_init (ANSIG *base, int count)
978{
979 while (count--)
980 {
981 base->head = 0;
982 base->gotsig = 0;
983
984 ++base;
985 }
986}
987 1143
988/*****************************************************************************/ 1144/*****************************************************************************/
989 1145
990void inline_speed 1146/* used to prepare libev internal fd's */
1147/* this is not fork-safe */
1148inline_speed void
991fd_intern (int fd) 1149fd_intern (int fd)
992{ 1150{
993#ifdef _WIN32 1151#ifdef _WIN32
994 int arg = 1; 1152 unsigned long arg = 1;
995 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); 1153 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
996#else 1154#else
997 fcntl (fd, F_SETFD, FD_CLOEXEC); 1155 fcntl (fd, F_SETFD, FD_CLOEXEC);
998 fcntl (fd, F_SETFL, O_NONBLOCK); 1156 fcntl (fd, F_SETFL, O_NONBLOCK);
999#endif 1157#endif
1000} 1158}
1001 1159
1002static void noinline 1160static void noinline
1003evpipe_init (EV_P) 1161evpipe_init (EV_P)
1004{ 1162{
1005 if (!ev_is_active (&pipeev)) 1163 if (!ev_is_active (&pipe_w))
1006 { 1164 {
1007#if EV_USE_EVENTFD 1165#if EV_USE_EVENTFD
1166 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1167 if (evfd < 0 && errno == EINVAL)
1008 if ((evfd = eventfd (0, 0)) >= 0) 1168 evfd = eventfd (0, 0);
1169
1170 if (evfd >= 0)
1009 { 1171 {
1010 evpipe [0] = -1; 1172 evpipe [0] = -1;
1011 fd_intern (evfd); 1173 fd_intern (evfd); /* doing it twice doesn't hurt */
1012 ev_io_set (&pipeev, evfd, EV_READ); 1174 ev_io_set (&pipe_w, evfd, EV_READ);
1013 } 1175 }
1014 else 1176 else
1015#endif 1177#endif
1016 { 1178 {
1017 while (pipe (evpipe)) 1179 while (pipe (evpipe))
1018 syserr ("(libev) error creating signal/async pipe"); 1180 ev_syserr ("(libev) error creating signal/async pipe");
1019 1181
1020 fd_intern (evpipe [0]); 1182 fd_intern (evpipe [0]);
1021 fd_intern (evpipe [1]); 1183 fd_intern (evpipe [1]);
1022 ev_io_set (&pipeev, evpipe [0], EV_READ); 1184 ev_io_set (&pipe_w, evpipe [0], EV_READ);
1023 } 1185 }
1024 1186
1025 ev_io_start (EV_A_ &pipeev); 1187 ev_io_start (EV_A_ &pipe_w);
1026 ev_unref (EV_A); /* watcher should not keep loop alive */ 1188 ev_unref (EV_A); /* watcher should not keep loop alive */
1027 } 1189 }
1028} 1190}
1029 1191
1030void inline_size 1192inline_size void
1031evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1193evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1032{ 1194{
1033 if (!*flag) 1195 if (!*flag)
1034 { 1196 {
1035 int old_errno = errno; /* save errno because write might clobber it */ 1197 int old_errno = errno; /* save errno because write might clobber it */
… …
1048 1210
1049 errno = old_errno; 1211 errno = old_errno;
1050 } 1212 }
1051} 1213}
1052 1214
1215/* called whenever the libev signal pipe */
1216/* got some events (signal, async) */
1053static void 1217static void
1054pipecb (EV_P_ ev_io *iow, int revents) 1218pipecb (EV_P_ ev_io *iow, int revents)
1055{ 1219{
1220 int i;
1221
1056#if EV_USE_EVENTFD 1222#if EV_USE_EVENTFD
1057 if (evfd >= 0) 1223 if (evfd >= 0)
1058 { 1224 {
1059 uint64_t counter; 1225 uint64_t counter;
1060 read (evfd, &counter, sizeof (uint64_t)); 1226 read (evfd, &counter, sizeof (uint64_t));
… …
1064 { 1230 {
1065 char dummy; 1231 char dummy;
1066 read (evpipe [0], &dummy, 1); 1232 read (evpipe [0], &dummy, 1);
1067 } 1233 }
1068 1234
1069 if (gotsig && ev_is_default_loop (EV_A)) 1235 if (sig_pending)
1070 { 1236 {
1071 int signum; 1237 sig_pending = 0;
1072 gotsig = 0;
1073 1238
1074 for (signum = signalmax; signum--; ) 1239 for (i = EV_NSIG - 1; i--; )
1075 if (signals [signum].gotsig) 1240 if (expect_false (signals [i].pending))
1076 ev_feed_signal_event (EV_A_ signum + 1); 1241 ev_feed_signal_event (EV_A_ i + 1);
1077 } 1242 }
1078 1243
1079#if EV_ASYNC_ENABLE 1244#if EV_ASYNC_ENABLE
1080 if (gotasync) 1245 if (async_pending)
1081 { 1246 {
1082 int i; 1247 async_pending = 0;
1083 gotasync = 0;
1084 1248
1085 for (i = asynccnt; i--; ) 1249 for (i = asynccnt; i--; )
1086 if (asyncs [i]->sent) 1250 if (asyncs [i]->sent)
1087 { 1251 {
1088 asyncs [i]->sent = 0; 1252 asyncs [i]->sent = 0;
… …
1096 1260
1097static void 1261static void
1098ev_sighandler (int signum) 1262ev_sighandler (int signum)
1099{ 1263{
1100#if EV_MULTIPLICITY 1264#if EV_MULTIPLICITY
1101 struct ev_loop *loop = &default_loop_struct; 1265 EV_P = signals [signum - 1].loop;
1102#endif 1266#endif
1103 1267
1104#if _WIN32 1268#if _WIN32
1105 signal (signum, ev_sighandler); 1269 signal (signum, ev_sighandler);
1106#endif 1270#endif
1107 1271
1108 signals [signum - 1].gotsig = 1; 1272 signals [signum - 1].pending = 1;
1109 evpipe_write (EV_A_ &gotsig); 1273 evpipe_write (EV_A_ &sig_pending);
1110} 1274}
1111 1275
1112void noinline 1276void noinline
1113ev_feed_signal_event (EV_P_ int signum) 1277ev_feed_signal_event (EV_P_ int signum)
1114{ 1278{
1115 WL w; 1279 WL w;
1116 1280
1281 if (expect_false (signum <= 0 || signum > EV_NSIG))
1282 return;
1283
1284 --signum;
1285
1117#if EV_MULTIPLICITY 1286#if EV_MULTIPLICITY
1118 assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); 1287 /* it is permissible to try to feed a signal to the wrong loop */
1119#endif 1288 /* or, likely more useful, feeding a signal nobody is waiting for */
1120 1289
1121 --signum; 1290 if (expect_false (signals [signum].loop != EV_A))
1122
1123 if (signum < 0 || signum >= signalmax)
1124 return; 1291 return;
1292#endif
1125 1293
1126 signals [signum].gotsig = 0; 1294 signals [signum].pending = 0;
1127 1295
1128 for (w = signals [signum].head; w; w = w->next) 1296 for (w = signals [signum].head; w; w = w->next)
1129 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 1297 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1130} 1298}
1131 1299
1300#if EV_USE_SIGNALFD
1301static void
1302sigfdcb (EV_P_ ev_io *iow, int revents)
1303{
1304 struct signalfd_siginfo si[2], *sip; /* these structs are big */
1305
1306 for (;;)
1307 {
1308 ssize_t res = read (sigfd, si, sizeof (si));
1309
1310 /* not ISO-C, as res might be -1, but works with SuS */
1311 for (sip = si; (char *)sip < (char *)si + res; ++sip)
1312 ev_feed_signal_event (EV_A_ sip->ssi_signo);
1313
1314 if (res < (ssize_t)sizeof (si))
1315 break;
1316 }
1317}
1318#endif
1319
1132/*****************************************************************************/ 1320/*****************************************************************************/
1133 1321
1134static WL childs [EV_PID_HASHSIZE]; 1322static WL childs [EV_PID_HASHSIZE];
1135 1323
1136#ifndef _WIN32 1324#ifndef _WIN32
… …
1139 1327
1140#ifndef WIFCONTINUED 1328#ifndef WIFCONTINUED
1141# define WIFCONTINUED(status) 0 1329# define WIFCONTINUED(status) 0
1142#endif 1330#endif
1143 1331
1144void inline_speed 1332/* handle a single child status event */
1333inline_speed void
1145child_reap (EV_P_ int chain, int pid, int status) 1334child_reap (EV_P_ int chain, int pid, int status)
1146{ 1335{
1147 ev_child *w; 1336 ev_child *w;
1148 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 1337 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1149 1338
… …
1162 1351
1163#ifndef WCONTINUED 1352#ifndef WCONTINUED
1164# define WCONTINUED 0 1353# define WCONTINUED 0
1165#endif 1354#endif
1166 1355
1356/* called on sigchld etc., calls waitpid */
1167static void 1357static void
1168childcb (EV_P_ ev_signal *sw, int revents) 1358childcb (EV_P_ ev_signal *sw, int revents)
1169{ 1359{
1170 int pid, status; 1360 int pid, status;
1171 1361
… …
1252 /* kqueue is borked on everything but netbsd apparently */ 1442 /* kqueue is borked on everything but netbsd apparently */
1253 /* it usually doesn't work correctly on anything but sockets and pipes */ 1443 /* it usually doesn't work correctly on anything but sockets and pipes */
1254 flags &= ~EVBACKEND_KQUEUE; 1444 flags &= ~EVBACKEND_KQUEUE;
1255#endif 1445#endif
1256#ifdef __APPLE__ 1446#ifdef __APPLE__
1257 // flags &= ~EVBACKEND_KQUEUE; for documentation 1447 /* only select works correctly on that "unix-certified" platform */
1258 flags &= ~EVBACKEND_POLL; 1448 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1449 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1259#endif 1450#endif
1260 1451
1261 return flags; 1452 return flags;
1262} 1453}
1263 1454
… …
1277ev_backend (EV_P) 1468ev_backend (EV_P)
1278{ 1469{
1279 return backend; 1470 return backend;
1280} 1471}
1281 1472
1473#if EV_MINIMAL < 2
1282unsigned int 1474unsigned int
1283ev_loop_count (EV_P) 1475ev_loop_count (EV_P)
1284{ 1476{
1285 return loop_count; 1477 return loop_count;
1286} 1478}
1287 1479
1480unsigned int
1481ev_loop_depth (EV_P)
1482{
1483 return loop_depth;
1484}
1485
1288void 1486void
1289ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 1487ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
1290{ 1488{
1291 io_blocktime = interval; 1489 io_blocktime = interval;
1292} 1490}
… …
1295ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 1493ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
1296{ 1494{
1297 timeout_blocktime = interval; 1495 timeout_blocktime = interval;
1298} 1496}
1299 1497
1498void
1499ev_set_userdata (EV_P_ void *data)
1500{
1501 userdata = data;
1502}
1503
1504void *
1505ev_userdata (EV_P)
1506{
1507 return userdata;
1508}
1509
1510void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))
1511{
1512 invoke_cb = invoke_pending_cb;
1513}
1514
1515void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))
1516{
1517 release_cb = release;
1518 acquire_cb = acquire;
1519}
1520#endif
1521
1522/* initialise a loop structure, must be zero-initialised */
1300static void noinline 1523static void noinline
1301loop_init (EV_P_ unsigned int flags) 1524loop_init (EV_P_ unsigned int flags)
1302{ 1525{
1303 if (!backend) 1526 if (!backend)
1304 { 1527 {
1528#if EV_USE_REALTIME
1529 if (!have_realtime)
1530 {
1531 struct timespec ts;
1532
1533 if (!clock_gettime (CLOCK_REALTIME, &ts))
1534 have_realtime = 1;
1535 }
1536#endif
1537
1305#if EV_USE_MONOTONIC 1538#if EV_USE_MONOTONIC
1539 if (!have_monotonic)
1306 { 1540 {
1307 struct timespec ts; 1541 struct timespec ts;
1542
1308 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 1543 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1309 have_monotonic = 1; 1544 have_monotonic = 1;
1310 } 1545 }
1311#endif 1546#endif
1547
1548 /* pid check not overridable via env */
1549#ifndef _WIN32
1550 if (flags & EVFLAG_FORKCHECK)
1551 curpid = getpid ();
1552#endif
1553
1554 if (!(flags & EVFLAG_NOENV)
1555 && !enable_secure ()
1556 && getenv ("LIBEV_FLAGS"))
1557 flags = atoi (getenv ("LIBEV_FLAGS"));
1312 1558
1313 ev_rt_now = ev_time (); 1559 ev_rt_now = ev_time ();
1314 mn_now = get_clock (); 1560 mn_now = get_clock ();
1315 now_floor = mn_now; 1561 now_floor = mn_now;
1316 rtmn_diff = ev_rt_now - mn_now; 1562 rtmn_diff = ev_rt_now - mn_now;
1563#if EV_MINIMAL < 2
1564 invoke_cb = ev_invoke_pending;
1565#endif
1317 1566
1318 io_blocktime = 0.; 1567 io_blocktime = 0.;
1319 timeout_blocktime = 0.; 1568 timeout_blocktime = 0.;
1320 backend = 0; 1569 backend = 0;
1321 backend_fd = -1; 1570 backend_fd = -1;
1322 gotasync = 0; 1571 sig_pending = 0;
1572#if EV_ASYNC_ENABLE
1573 async_pending = 0;
1574#endif
1323#if EV_USE_INOTIFY 1575#if EV_USE_INOTIFY
1324 fs_fd = -2; 1576 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1325#endif 1577#endif
1326 1578#if EV_USE_SIGNALFD
1327 /* pid check not overridable via env */ 1579 sigfd = flags & EVFLAG_NOSIGFD ? -1 : -2;
1328#ifndef _WIN32
1329 if (flags & EVFLAG_FORKCHECK)
1330 curpid = getpid ();
1331#endif 1580#endif
1332
1333 if (!(flags & EVFLAG_NOENV)
1334 && !enable_secure ()
1335 && getenv ("LIBEV_FLAGS"))
1336 flags = atoi (getenv ("LIBEV_FLAGS"));
1337 1581
1338 if (!(flags & 0x0000ffffU)) 1582 if (!(flags & 0x0000ffffU))
1339 flags |= ev_recommended_backends (); 1583 flags |= ev_recommended_backends ();
1340 1584
1341#if EV_USE_PORT 1585#if EV_USE_PORT
… …
1352#endif 1596#endif
1353#if EV_USE_SELECT 1597#if EV_USE_SELECT
1354 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 1598 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1355#endif 1599#endif
1356 1600
1601 ev_prepare_init (&pending_w, pendingcb);
1602
1357 ev_init (&pipeev, pipecb); 1603 ev_init (&pipe_w, pipecb);
1358 ev_set_priority (&pipeev, EV_MAXPRI); 1604 ev_set_priority (&pipe_w, EV_MAXPRI);
1359 } 1605 }
1360} 1606}
1361 1607
1608/* free up a loop structure */
1362static void noinline 1609static void noinline
1363loop_destroy (EV_P) 1610loop_destroy (EV_P)
1364{ 1611{
1365 int i; 1612 int i;
1366 1613
1367 if (ev_is_active (&pipeev)) 1614 if (ev_is_active (&pipe_w))
1368 { 1615 {
1369 ev_ref (EV_A); /* signal watcher */ 1616 /*ev_ref (EV_A);*/
1370 ev_io_stop (EV_A_ &pipeev); 1617 /*ev_io_stop (EV_A_ &pipe_w);*/
1371 1618
1372#if EV_USE_EVENTFD 1619#if EV_USE_EVENTFD
1373 if (evfd >= 0) 1620 if (evfd >= 0)
1374 close (evfd); 1621 close (evfd);
1375#endif 1622#endif
… …
1379 close (evpipe [0]); 1626 close (evpipe [0]);
1380 close (evpipe [1]); 1627 close (evpipe [1]);
1381 } 1628 }
1382 } 1629 }
1383 1630
1631#if EV_USE_SIGNALFD
1632 if (ev_is_active (&sigfd_w))
1633 {
1634 /*ev_ref (EV_A);*/
1635 /*ev_io_stop (EV_A_ &sigfd_w);*/
1636
1637 close (sigfd);
1638 }
1639#endif
1640
1384#if EV_USE_INOTIFY 1641#if EV_USE_INOTIFY
1385 if (fs_fd >= 0) 1642 if (fs_fd >= 0)
1386 close (fs_fd); 1643 close (fs_fd);
1387#endif 1644#endif
1388 1645
… …
1411#if EV_IDLE_ENABLE 1668#if EV_IDLE_ENABLE
1412 array_free (idle, [i]); 1669 array_free (idle, [i]);
1413#endif 1670#endif
1414 } 1671 }
1415 1672
1416 ev_free (anfds); anfdmax = 0; 1673 ev_free (anfds); anfds = 0; anfdmax = 0;
1417 1674
1418 /* have to use the microsoft-never-gets-it-right macro */ 1675 /* have to use the microsoft-never-gets-it-right macro */
1676 array_free (rfeed, EMPTY);
1419 array_free (fdchange, EMPTY); 1677 array_free (fdchange, EMPTY);
1420 array_free (timer, EMPTY); 1678 array_free (timer, EMPTY);
1421#if EV_PERIODIC_ENABLE 1679#if EV_PERIODIC_ENABLE
1422 array_free (periodic, EMPTY); 1680 array_free (periodic, EMPTY);
1423#endif 1681#endif
… …
1432 1690
1433 backend = 0; 1691 backend = 0;
1434} 1692}
1435 1693
1436#if EV_USE_INOTIFY 1694#if EV_USE_INOTIFY
1437void inline_size infy_fork (EV_P); 1695inline_size void infy_fork (EV_P);
1438#endif 1696#endif
1439 1697
1440void inline_size 1698inline_size void
1441loop_fork (EV_P) 1699loop_fork (EV_P)
1442{ 1700{
1443#if EV_USE_PORT 1701#if EV_USE_PORT
1444 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 1702 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
1445#endif 1703#endif
… …
1451#endif 1709#endif
1452#if EV_USE_INOTIFY 1710#if EV_USE_INOTIFY
1453 infy_fork (EV_A); 1711 infy_fork (EV_A);
1454#endif 1712#endif
1455 1713
1456 if (ev_is_active (&pipeev)) 1714 if (ev_is_active (&pipe_w))
1457 { 1715 {
1458 /* this "locks" the handlers against writing to the pipe */ 1716 /* this "locks" the handlers against writing to the pipe */
1459 /* while we modify the fd vars */ 1717 /* while we modify the fd vars */
1460 gotsig = 1; 1718 sig_pending = 1;
1461#if EV_ASYNC_ENABLE 1719#if EV_ASYNC_ENABLE
1462 gotasync = 1; 1720 async_pending = 1;
1463#endif 1721#endif
1464 1722
1465 ev_ref (EV_A); 1723 ev_ref (EV_A);
1466 ev_io_stop (EV_A_ &pipeev); 1724 ev_io_stop (EV_A_ &pipe_w);
1467 1725
1468#if EV_USE_EVENTFD 1726#if EV_USE_EVENTFD
1469 if (evfd >= 0) 1727 if (evfd >= 0)
1470 close (evfd); 1728 close (evfd);
1471#endif 1729#endif
… …
1476 close (evpipe [1]); 1734 close (evpipe [1]);
1477 } 1735 }
1478 1736
1479 evpipe_init (EV_A); 1737 evpipe_init (EV_A);
1480 /* now iterate over everything, in case we missed something */ 1738 /* now iterate over everything, in case we missed something */
1481 pipecb (EV_A_ &pipeev, EV_READ); 1739 pipecb (EV_A_ &pipe_w, EV_READ);
1482 } 1740 }
1483 1741
1484 postfork = 0; 1742 postfork = 0;
1485} 1743}
1486 1744
1487#if EV_MULTIPLICITY 1745#if EV_MULTIPLICITY
1488 1746
1489struct ev_loop * 1747struct ev_loop *
1490ev_loop_new (unsigned int flags) 1748ev_loop_new (unsigned int flags)
1491{ 1749{
1492 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 1750 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1493 1751
1494 memset (loop, 0, sizeof (struct ev_loop)); 1752 memset (EV_A, 0, sizeof (struct ev_loop));
1495
1496 loop_init (EV_A_ flags); 1753 loop_init (EV_A_ flags);
1497 1754
1498 if (ev_backend (EV_A)) 1755 if (ev_backend (EV_A))
1499 return loop; 1756 return EV_A;
1500 1757
1501 return 0; 1758 return 0;
1502} 1759}
1503 1760
1504void 1761void
… …
1511void 1768void
1512ev_loop_fork (EV_P) 1769ev_loop_fork (EV_P)
1513{ 1770{
1514 postfork = 1; /* must be in line with ev_default_fork */ 1771 postfork = 1; /* must be in line with ev_default_fork */
1515} 1772}
1773#endif /* multiplicity */
1516 1774
1517#if EV_VERIFY 1775#if EV_VERIFY
1518static void 1776static void noinline
1777verify_watcher (EV_P_ W w)
1778{
1779 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1780
1781 if (w->pending)
1782 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1783}
1784
1785static void noinline
1786verify_heap (EV_P_ ANHE *heap, int N)
1787{
1788 int i;
1789
1790 for (i = HEAP0; i < N + HEAP0; ++i)
1791 {
1792 assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i));
1793 assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i])));
1794 assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i]))));
1795
1796 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1797 }
1798}
1799
1800static void noinline
1519array_check (W **ws, int cnt) 1801array_verify (EV_P_ W *ws, int cnt)
1520{ 1802{
1521 while (cnt--) 1803 while (cnt--)
1804 {
1522 assert (("active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 1805 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1806 verify_watcher (EV_A_ ws [cnt]);
1807 }
1523} 1808}
1524#endif 1809#endif
1525 1810
1811#if EV_MINIMAL < 2
1526void 1812void
1527ev_loop_verify (EV_P) 1813ev_loop_verify (EV_P)
1528{ 1814{
1529#if EV_VERIFY 1815#if EV_VERIFY
1530 int i; 1816 int i;
1817 WL w;
1531 1818
1819 assert (activecnt >= -1);
1820
1821 assert (fdchangemax >= fdchangecnt);
1822 for (i = 0; i < fdchangecnt; ++i)
1823 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
1824
1825 assert (anfdmax >= 0);
1826 for (i = 0; i < anfdmax; ++i)
1827 for (w = anfds [i].head; w; w = w->next)
1828 {
1829 verify_watcher (EV_A_ (W)w);
1830 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
1831 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
1832 }
1833
1834 assert (timermax >= timercnt);
1532 checkheap (timers, timercnt); 1835 verify_heap (EV_A_ timers, timercnt);
1836
1533#if EV_PERIODIC_ENABLE 1837#if EV_PERIODIC_ENABLE
1838 assert (periodicmax >= periodiccnt);
1534 checkheap (periodics, periodiccnt); 1839 verify_heap (EV_A_ periodics, periodiccnt);
1535#endif 1840#endif
1536 1841
1842 for (i = NUMPRI; i--; )
1843 {
1844 assert (pendingmax [i] >= pendingcnt [i]);
1537#if EV_IDLE_ENABLE 1845#if EV_IDLE_ENABLE
1538 for (i = NUMPRI; i--; ) 1846 assert (idleall >= 0);
1847 assert (idlemax [i] >= idlecnt [i]);
1539 array_check ((W **)idles [i], idlecnt [i]); 1848 array_verify (EV_A_ (W *)idles [i], idlecnt [i]);
1540#endif 1849#endif
1850 }
1851
1541#if EV_FORK_ENABLE 1852#if EV_FORK_ENABLE
1853 assert (forkmax >= forkcnt);
1542 array_check ((W **)forks, forkcnt); 1854 array_verify (EV_A_ (W *)forks, forkcnt);
1543#endif 1855#endif
1856
1544#if EV_ASYNC_ENABLE 1857#if EV_ASYNC_ENABLE
1858 assert (asyncmax >= asynccnt);
1545 array_check ((W **)asyncs, asynccnt); 1859 array_verify (EV_A_ (W *)asyncs, asynccnt);
1860#endif
1861
1862 assert (preparemax >= preparecnt);
1863 array_verify (EV_A_ (W *)prepares, preparecnt);
1864
1865 assert (checkmax >= checkcnt);
1866 array_verify (EV_A_ (W *)checks, checkcnt);
1867
1868# if 0
1869 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
1870 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
1546#endif 1871# endif
1547 array_check ((W **)prepares, preparecnt);
1548 array_check ((W **)checks, checkcnt);
1549#endif 1872#endif
1550} 1873}
1551 1874#endif
1552#endif /* multiplicity */
1553 1875
1554#if EV_MULTIPLICITY 1876#if EV_MULTIPLICITY
1555struct ev_loop * 1877struct ev_loop *
1556ev_default_loop_init (unsigned int flags) 1878ev_default_loop_init (unsigned int flags)
1557#else 1879#else
… …
1560#endif 1882#endif
1561{ 1883{
1562 if (!ev_default_loop_ptr) 1884 if (!ev_default_loop_ptr)
1563 { 1885 {
1564#if EV_MULTIPLICITY 1886#if EV_MULTIPLICITY
1565 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; 1887 EV_P = ev_default_loop_ptr = &default_loop_struct;
1566#else 1888#else
1567 ev_default_loop_ptr = 1; 1889 ev_default_loop_ptr = 1;
1568#endif 1890#endif
1569 1891
1570 loop_init (EV_A_ flags); 1892 loop_init (EV_A_ flags);
… …
1587 1909
1588void 1910void
1589ev_default_destroy (void) 1911ev_default_destroy (void)
1590{ 1912{
1591#if EV_MULTIPLICITY 1913#if EV_MULTIPLICITY
1592 struct ev_loop *loop = ev_default_loop_ptr; 1914 EV_P = ev_default_loop_ptr;
1593#endif 1915#endif
1916
1917 ev_default_loop_ptr = 0;
1594 1918
1595#ifndef _WIN32 1919#ifndef _WIN32
1596 ev_ref (EV_A); /* child watcher */ 1920 ev_ref (EV_A); /* child watcher */
1597 ev_signal_stop (EV_A_ &childev); 1921 ev_signal_stop (EV_A_ &childev);
1598#endif 1922#endif
… …
1602 1926
1603void 1927void
1604ev_default_fork (void) 1928ev_default_fork (void)
1605{ 1929{
1606#if EV_MULTIPLICITY 1930#if EV_MULTIPLICITY
1607 struct ev_loop *loop = ev_default_loop_ptr; 1931 EV_P = ev_default_loop_ptr;
1608#endif 1932#endif
1609 1933
1610 if (backend)
1611 postfork = 1; /* must be in line with ev_loop_fork */ 1934 postfork = 1; /* must be in line with ev_loop_fork */
1612} 1935}
1613 1936
1614/*****************************************************************************/ 1937/*****************************************************************************/
1615 1938
1616void 1939void
1617ev_invoke (EV_P_ void *w, int revents) 1940ev_invoke (EV_P_ void *w, int revents)
1618{ 1941{
1619 EV_CB_INVOKE ((W)w, revents); 1942 EV_CB_INVOKE ((W)w, revents);
1620} 1943}
1621 1944
1622void inline_speed 1945unsigned int
1623call_pending (EV_P) 1946ev_pending_count (EV_P)
1947{
1948 int pri;
1949 unsigned int count = 0;
1950
1951 for (pri = NUMPRI; pri--; )
1952 count += pendingcnt [pri];
1953
1954 return count;
1955}
1956
1957void noinline
1958ev_invoke_pending (EV_P)
1624{ 1959{
1625 int pri; 1960 int pri;
1626 1961
1627 for (pri = NUMPRI; pri--; ) 1962 for (pri = NUMPRI; pri--; )
1628 while (pendingcnt [pri]) 1963 while (pendingcnt [pri])
1629 { 1964 {
1630 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 1965 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1631 1966
1632 if (expect_true (p->w))
1633 {
1634 /*assert (("non-pending watcher on pending list", p->w->pending));*/ 1967 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
1968 /* ^ this is no longer true, as pending_w could be here */
1635 1969
1636 p->w->pending = 0; 1970 p->w->pending = 0;
1637 EV_CB_INVOKE (p->w, p->events); 1971 EV_CB_INVOKE (p->w, p->events);
1638 EV_FREQUENT_CHECK; 1972 EV_FREQUENT_CHECK;
1639 }
1640 } 1973 }
1641} 1974}
1642 1975
1643#if EV_IDLE_ENABLE 1976#if EV_IDLE_ENABLE
1644void inline_size 1977/* make idle watchers pending. this handles the "call-idle */
1978/* only when higher priorities are idle" logic */
1979inline_size void
1645idle_reify (EV_P) 1980idle_reify (EV_P)
1646{ 1981{
1647 if (expect_false (idleall)) 1982 if (expect_false (idleall))
1648 { 1983 {
1649 int pri; 1984 int pri;
… …
1661 } 1996 }
1662 } 1997 }
1663} 1998}
1664#endif 1999#endif
1665 2000
1666void inline_size 2001/* make timers pending */
2002inline_size void
1667timers_reify (EV_P) 2003timers_reify (EV_P)
1668{ 2004{
1669 EV_FREQUENT_CHECK; 2005 EV_FREQUENT_CHECK;
1670 2006
1671 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now) 2007 if (timercnt && ANHE_at (timers [HEAP0]) < mn_now)
1672 { 2008 {
1673 ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); 2009 do
1674
1675 /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
1676
1677 /* first reschedule or stop timer */
1678 if (w->repeat)
1679 { 2010 {
2011 ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]);
2012
2013 /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/
2014
2015 /* first reschedule or stop timer */
2016 if (w->repeat)
2017 {
1680 ev_at (w) += w->repeat; 2018 ev_at (w) += w->repeat;
1681 if (ev_at (w) < mn_now) 2019 if (ev_at (w) < mn_now)
1682 ev_at (w) = mn_now; 2020 ev_at (w) = mn_now;
1683 2021
1684 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); 2022 assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1685 2023
1686 ANHE_at_cache (timers [HEAP0]); 2024 ANHE_at_cache (timers [HEAP0]);
1687 downheap (timers, timercnt, HEAP0); 2025 downheap (timers, timercnt, HEAP0);
2026 }
2027 else
2028 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
2029
2030 EV_FREQUENT_CHECK;
2031 feed_reverse (EV_A_ (W)w);
1688 } 2032 }
1689 else 2033 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
1690 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1691 2034
1692 EV_FREQUENT_CHECK;
1693 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); 2035 feed_reverse_done (EV_A_ EV_TIMEOUT);
1694 } 2036 }
1695} 2037}
1696 2038
1697#if EV_PERIODIC_ENABLE 2039#if EV_PERIODIC_ENABLE
1698void inline_size 2040/* make periodics pending */
2041inline_size void
1699periodics_reify (EV_P) 2042periodics_reify (EV_P)
1700{ 2043{
1701 EV_FREQUENT_CHECK; 2044 EV_FREQUENT_CHECK;
1702 2045
1703 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 2046 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
1704 { 2047 {
1705 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 2048 int feed_count = 0;
1706 2049
1707 /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ 2050 do
1708
1709 /* first reschedule or stop timer */
1710 if (w->reschedule_cb)
1711 { 2051 {
2052 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2053
2054 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
2055
2056 /* first reschedule or stop timer */
2057 if (w->reschedule_cb)
2058 {
1712 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2059 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1713 2060
1714 assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); 2061 assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now));
1715 2062
1716 ANHE_at_cache (periodics [HEAP0]); 2063 ANHE_at_cache (periodics [HEAP0]);
1717 downheap (periodics, periodiccnt, HEAP0); 2064 downheap (periodics, periodiccnt, HEAP0);
2065 }
2066 else if (w->interval)
2067 {
2068 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2069 /* if next trigger time is not sufficiently in the future, put it there */
2070 /* this might happen because of floating point inexactness */
2071 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
2072 {
2073 ev_at (w) += w->interval;
2074
2075 /* if interval is unreasonably low we might still have a time in the past */
2076 /* so correct this. this will make the periodic very inexact, but the user */
2077 /* has effectively asked to get triggered more often than possible */
2078 if (ev_at (w) < ev_rt_now)
2079 ev_at (w) = ev_rt_now;
2080 }
2081
2082 ANHE_at_cache (periodics [HEAP0]);
2083 downheap (periodics, periodiccnt, HEAP0);
2084 }
2085 else
2086 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
2087
2088 EV_FREQUENT_CHECK;
2089 feed_reverse (EV_A_ (W)w);
1718 } 2090 }
1719 else if (w->interval) 2091 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now);
1720 {
1721 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1722 /* if next trigger time is not sufficiently in the future, put it there */
1723 /* this might happen because of floating point inexactness */
1724 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
1725 {
1726 ev_at (w) += w->interval;
1727 2092
1728 /* if interval is unreasonably low we might still have a time in the past */
1729 /* so correct this. this will make the periodic very inexact, but the user */
1730 /* has effectively asked to get triggered more often than possible */
1731 if (ev_at (w) < ev_rt_now)
1732 ev_at (w) = ev_rt_now;
1733 }
1734
1735 ANHE_at_cache (periodics [HEAP0]);
1736 downheap (periodics, periodiccnt, HEAP0);
1737 }
1738 else
1739 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1740
1741 EV_FREQUENT_CHECK;
1742 ev_feed_event (EV_A_ (W)w, EV_PERIODIC); 2093 feed_reverse_done (EV_A_ EV_PERIODIC);
1743 } 2094 }
1744} 2095}
1745 2096
2097/* simply recalculate all periodics */
2098/* TODO: maybe ensure that at leats one event happens when jumping forward? */
1746static void noinline 2099static void noinline
1747periodics_reschedule (EV_P) 2100periodics_reschedule (EV_P)
1748{ 2101{
1749 int i; 2102 int i;
1750 2103
… …
1763 2116
1764 reheap (periodics, periodiccnt); 2117 reheap (periodics, periodiccnt);
1765} 2118}
1766#endif 2119#endif
1767 2120
1768void inline_speed 2121/* adjust all timers by a given offset */
2122static void noinline
2123timers_reschedule (EV_P_ ev_tstamp adjust)
2124{
2125 int i;
2126
2127 for (i = 0; i < timercnt; ++i)
2128 {
2129 ANHE *he = timers + i + HEAP0;
2130 ANHE_w (*he)->at += adjust;
2131 ANHE_at_cache (*he);
2132 }
2133}
2134
2135/* fetch new monotonic and realtime times from the kernel */
2136/* also detetc if there was a timejump, and act accordingly */
2137inline_speed void
1769time_update (EV_P_ ev_tstamp max_block) 2138time_update (EV_P_ ev_tstamp max_block)
1770{ 2139{
1771 int i;
1772
1773#if EV_USE_MONOTONIC 2140#if EV_USE_MONOTONIC
1774 if (expect_true (have_monotonic)) 2141 if (expect_true (have_monotonic))
1775 { 2142 {
2143 int i;
1776 ev_tstamp odiff = rtmn_diff; 2144 ev_tstamp odiff = rtmn_diff;
1777 2145
1778 mn_now = get_clock (); 2146 mn_now = get_clock ();
1779 2147
1780 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ 2148 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
… …
1806 ev_rt_now = ev_time (); 2174 ev_rt_now = ev_time ();
1807 mn_now = get_clock (); 2175 mn_now = get_clock ();
1808 now_floor = mn_now; 2176 now_floor = mn_now;
1809 } 2177 }
1810 2178
2179 /* no timer adjustment, as the monotonic clock doesn't jump */
2180 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1811# if EV_PERIODIC_ENABLE 2181# if EV_PERIODIC_ENABLE
1812 periodics_reschedule (EV_A); 2182 periodics_reschedule (EV_A);
1813# endif 2183# endif
1814 /* no timer adjustment, as the monotonic clock doesn't jump */
1815 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1816 } 2184 }
1817 else 2185 else
1818#endif 2186#endif
1819 { 2187 {
1820 ev_rt_now = ev_time (); 2188 ev_rt_now = ev_time ();
1821 2189
1822 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) 2190 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
1823 { 2191 {
2192 /* adjust timers. this is easy, as the offset is the same for all of them */
2193 timers_reschedule (EV_A_ ev_rt_now - mn_now);
1824#if EV_PERIODIC_ENABLE 2194#if EV_PERIODIC_ENABLE
1825 periodics_reschedule (EV_A); 2195 periodics_reschedule (EV_A);
1826#endif 2196#endif
1827 /* adjust timers. this is easy, as the offset is the same for all of them */
1828 for (i = 0; i < timercnt; ++i)
1829 {
1830 ANHE *he = timers + i + HEAP0;
1831 ANHE_w (*he)->at += ev_rt_now - mn_now;
1832 ANHE_at_cache (*he);
1833 }
1834 } 2197 }
1835 2198
1836 mn_now = ev_rt_now; 2199 mn_now = ev_rt_now;
1837 } 2200 }
1838} 2201}
1839 2202
1840void 2203void
1841ev_ref (EV_P)
1842{
1843 ++activecnt;
1844}
1845
1846void
1847ev_unref (EV_P)
1848{
1849 --activecnt;
1850}
1851
1852static int loop_done;
1853
1854void
1855ev_loop (EV_P_ int flags) 2204ev_loop (EV_P_ int flags)
1856{ 2205{
2206#if EV_MINIMAL < 2
2207 ++loop_depth;
2208#endif
2209
2210 assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE));
2211
1857 loop_done = EVUNLOOP_CANCEL; 2212 loop_done = EVUNLOOP_CANCEL;
1858 2213
1859 call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ 2214 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
1860 2215
1861 do 2216 do
1862 { 2217 {
1863#if EV_VERIFY >= 2 2218#if EV_VERIFY >= 2
1864 ev_loop_verify (EV_A); 2219 ev_loop_verify (EV_A);
… …
1877 /* we might have forked, so queue fork handlers */ 2232 /* we might have forked, so queue fork handlers */
1878 if (expect_false (postfork)) 2233 if (expect_false (postfork))
1879 if (forkcnt) 2234 if (forkcnt)
1880 { 2235 {
1881 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2236 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
1882 call_pending (EV_A); 2237 EV_INVOKE_PENDING;
1883 } 2238 }
1884#endif 2239#endif
1885 2240
1886 /* queue prepare watchers (and execute them) */ 2241 /* queue prepare watchers (and execute them) */
1887 if (expect_false (preparecnt)) 2242 if (expect_false (preparecnt))
1888 { 2243 {
1889 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 2244 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1890 call_pending (EV_A); 2245 EV_INVOKE_PENDING;
1891 } 2246 }
1892 2247
1893 if (expect_false (!activecnt)) 2248 if (expect_false (loop_done))
1894 break; 2249 break;
1895 2250
1896 /* we might have forked, so reify kernel state if necessary */ 2251 /* we might have forked, so reify kernel state if necessary */
1897 if (expect_false (postfork)) 2252 if (expect_false (postfork))
1898 loop_fork (EV_A); 2253 loop_fork (EV_A);
… …
1905 ev_tstamp waittime = 0.; 2260 ev_tstamp waittime = 0.;
1906 ev_tstamp sleeptime = 0.; 2261 ev_tstamp sleeptime = 0.;
1907 2262
1908 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 2263 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))
1909 { 2264 {
2265 /* remember old timestamp for io_blocktime calculation */
2266 ev_tstamp prev_mn_now = mn_now;
2267
1910 /* update time to cancel out callback processing overhead */ 2268 /* update time to cancel out callback processing overhead */
1911 time_update (EV_A_ 1e100); 2269 time_update (EV_A_ 1e100);
1912 2270
1913 waittime = MAX_BLOCKTIME; 2271 waittime = MAX_BLOCKTIME;
1914 2272
… …
1924 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 2282 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge;
1925 if (waittime > to) waittime = to; 2283 if (waittime > to) waittime = to;
1926 } 2284 }
1927#endif 2285#endif
1928 2286
2287 /* don't let timeouts decrease the waittime below timeout_blocktime */
1929 if (expect_false (waittime < timeout_blocktime)) 2288 if (expect_false (waittime < timeout_blocktime))
1930 waittime = timeout_blocktime; 2289 waittime = timeout_blocktime;
1931 2290
1932 sleeptime = waittime - backend_fudge; 2291 /* extra check because io_blocktime is commonly 0 */
1933
1934 if (expect_true (sleeptime > io_blocktime)) 2292 if (expect_false (io_blocktime))
1935 sleeptime = io_blocktime;
1936
1937 if (sleeptime)
1938 { 2293 {
2294 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2295
2296 if (sleeptime > waittime - backend_fudge)
2297 sleeptime = waittime - backend_fudge;
2298
2299 if (expect_true (sleeptime > 0.))
2300 {
1939 ev_sleep (sleeptime); 2301 ev_sleep (sleeptime);
1940 waittime -= sleeptime; 2302 waittime -= sleeptime;
2303 }
1941 } 2304 }
1942 } 2305 }
1943 2306
2307#if EV_MINIMAL < 2
1944 ++loop_count; 2308 ++loop_count;
2309#endif
2310 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */
1945 backend_poll (EV_A_ waittime); 2311 backend_poll (EV_A_ waittime);
2312 assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */
1946 2313
1947 /* update ev_rt_now, do magic */ 2314 /* update ev_rt_now, do magic */
1948 time_update (EV_A_ waittime + sleeptime); 2315 time_update (EV_A_ waittime + sleeptime);
1949 } 2316 }
1950 2317
… …
1961 2328
1962 /* queue check watchers, to be executed first */ 2329 /* queue check watchers, to be executed first */
1963 if (expect_false (checkcnt)) 2330 if (expect_false (checkcnt))
1964 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 2331 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1965 2332
1966 call_pending (EV_A); 2333 EV_INVOKE_PENDING;
1967 } 2334 }
1968 while (expect_true ( 2335 while (expect_true (
1969 activecnt 2336 activecnt
1970 && !loop_done 2337 && !loop_done
1971 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 2338 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK))
1972 )); 2339 ));
1973 2340
1974 if (loop_done == EVUNLOOP_ONE) 2341 if (loop_done == EVUNLOOP_ONE)
1975 loop_done = EVUNLOOP_CANCEL; 2342 loop_done = EVUNLOOP_CANCEL;
2343
2344#if EV_MINIMAL < 2
2345 --loop_depth;
2346#endif
1976} 2347}
1977 2348
1978void 2349void
1979ev_unloop (EV_P_ int how) 2350ev_unloop (EV_P_ int how)
1980{ 2351{
1981 loop_done = how; 2352 loop_done = how;
1982} 2353}
1983 2354
2355void
2356ev_ref (EV_P)
2357{
2358 ++activecnt;
2359}
2360
2361void
2362ev_unref (EV_P)
2363{
2364 --activecnt;
2365}
2366
2367void
2368ev_now_update (EV_P)
2369{
2370 time_update (EV_A_ 1e100);
2371}
2372
2373void
2374ev_suspend (EV_P)
2375{
2376 ev_now_update (EV_A);
2377}
2378
2379void
2380ev_resume (EV_P)
2381{
2382 ev_tstamp mn_prev = mn_now;
2383
2384 ev_now_update (EV_A);
2385 timers_reschedule (EV_A_ mn_now - mn_prev);
2386#if EV_PERIODIC_ENABLE
2387 /* TODO: really do this? */
2388 periodics_reschedule (EV_A);
2389#endif
2390}
2391
1984/*****************************************************************************/ 2392/*****************************************************************************/
2393/* singly-linked list management, used when the expected list length is short */
1985 2394
1986void inline_size 2395inline_size void
1987wlist_add (WL *head, WL elem) 2396wlist_add (WL *head, WL elem)
1988{ 2397{
1989 elem->next = *head; 2398 elem->next = *head;
1990 *head = elem; 2399 *head = elem;
1991} 2400}
1992 2401
1993void inline_size 2402inline_size void
1994wlist_del (WL *head, WL elem) 2403wlist_del (WL *head, WL elem)
1995{ 2404{
1996 while (*head) 2405 while (*head)
1997 { 2406 {
1998 if (*head == elem) 2407 if (expect_true (*head == elem))
1999 { 2408 {
2000 *head = elem->next; 2409 *head = elem->next;
2001 return; 2410 break;
2002 } 2411 }
2003 2412
2004 head = &(*head)->next; 2413 head = &(*head)->next;
2005 } 2414 }
2006} 2415}
2007 2416
2008void inline_speed 2417/* internal, faster, version of ev_clear_pending */
2418inline_speed void
2009clear_pending (EV_P_ W w) 2419clear_pending (EV_P_ W w)
2010{ 2420{
2011 if (w->pending) 2421 if (w->pending)
2012 { 2422 {
2013 pendings [ABSPRI (w)][w->pending - 1].w = 0; 2423 pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w;
2014 w->pending = 0; 2424 w->pending = 0;
2015 } 2425 }
2016} 2426}
2017 2427
2018int 2428int
… …
2022 int pending = w_->pending; 2432 int pending = w_->pending;
2023 2433
2024 if (expect_true (pending)) 2434 if (expect_true (pending))
2025 { 2435 {
2026 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; 2436 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
2437 p->w = (W)&pending_w;
2027 w_->pending = 0; 2438 w_->pending = 0;
2028 p->w = 0;
2029 return p->events; 2439 return p->events;
2030 } 2440 }
2031 else 2441 else
2032 return 0; 2442 return 0;
2033} 2443}
2034 2444
2035void inline_size 2445inline_size void
2036pri_adjust (EV_P_ W w) 2446pri_adjust (EV_P_ W w)
2037{ 2447{
2038 int pri = w->priority; 2448 int pri = ev_priority (w);
2039 pri = pri < EV_MINPRI ? EV_MINPRI : pri; 2449 pri = pri < EV_MINPRI ? EV_MINPRI : pri;
2040 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; 2450 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
2041 w->priority = pri; 2451 ev_set_priority (w, pri);
2042} 2452}
2043 2453
2044void inline_speed 2454inline_speed void
2045ev_start (EV_P_ W w, int active) 2455ev_start (EV_P_ W w, int active)
2046{ 2456{
2047 pri_adjust (EV_A_ w); 2457 pri_adjust (EV_A_ w);
2048 w->active = active; 2458 w->active = active;
2049 ev_ref (EV_A); 2459 ev_ref (EV_A);
2050} 2460}
2051 2461
2052void inline_size 2462inline_size void
2053ev_stop (EV_P_ W w) 2463ev_stop (EV_P_ W w)
2054{ 2464{
2055 ev_unref (EV_A); 2465 ev_unref (EV_A);
2056 w->active = 0; 2466 w->active = 0;
2057} 2467}
… …
2064 int fd = w->fd; 2474 int fd = w->fd;
2065 2475
2066 if (expect_false (ev_is_active (w))) 2476 if (expect_false (ev_is_active (w)))
2067 return; 2477 return;
2068 2478
2069 assert (("ev_io_start called with negative fd", fd >= 0)); 2479 assert (("libev: ev_io_start called with negative fd", fd >= 0));
2480 assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2070 2481
2071 EV_FREQUENT_CHECK; 2482 EV_FREQUENT_CHECK;
2072 2483
2073 ev_start (EV_A_ (W)w, 1); 2484 ev_start (EV_A_ (W)w, 1);
2074 array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); 2485 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2075 wlist_add (&anfds[fd].head, (WL)w); 2486 wlist_add (&anfds[fd].head, (WL)w);
2076 2487
2077 fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); 2488 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2078 w->events &= ~EV_IOFDSET; 2489 w->events &= ~EV__IOFDSET;
2079 2490
2080 EV_FREQUENT_CHECK; 2491 EV_FREQUENT_CHECK;
2081} 2492}
2082 2493
2083void noinline 2494void noinline
… …
2085{ 2496{
2086 clear_pending (EV_A_ (W)w); 2497 clear_pending (EV_A_ (W)w);
2087 if (expect_false (!ev_is_active (w))) 2498 if (expect_false (!ev_is_active (w)))
2088 return; 2499 return;
2089 2500
2090 assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); 2501 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
2091 2502
2092 EV_FREQUENT_CHECK; 2503 EV_FREQUENT_CHECK;
2093 2504
2094 wlist_del (&anfds[w->fd].head, (WL)w); 2505 wlist_del (&anfds[w->fd].head, (WL)w);
2095 ev_stop (EV_A_ (W)w); 2506 ev_stop (EV_A_ (W)w);
… …
2105 if (expect_false (ev_is_active (w))) 2516 if (expect_false (ev_is_active (w)))
2106 return; 2517 return;
2107 2518
2108 ev_at (w) += mn_now; 2519 ev_at (w) += mn_now;
2109 2520
2110 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 2521 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
2111 2522
2112 EV_FREQUENT_CHECK; 2523 EV_FREQUENT_CHECK;
2113 2524
2114 ++timercnt; 2525 ++timercnt;
2115 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); 2526 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
… …
2118 ANHE_at_cache (timers [ev_active (w)]); 2529 ANHE_at_cache (timers [ev_active (w)]);
2119 upheap (timers, ev_active (w)); 2530 upheap (timers, ev_active (w));
2120 2531
2121 EV_FREQUENT_CHECK; 2532 EV_FREQUENT_CHECK;
2122 2533
2123 /*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 2534 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2124} 2535}
2125 2536
2126void noinline 2537void noinline
2127ev_timer_stop (EV_P_ ev_timer *w) 2538ev_timer_stop (EV_P_ ev_timer *w)
2128{ 2539{
… …
2133 EV_FREQUENT_CHECK; 2544 EV_FREQUENT_CHECK;
2134 2545
2135 { 2546 {
2136 int active = ev_active (w); 2547 int active = ev_active (w);
2137 2548
2138 assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); 2549 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
2139 2550
2140 --timercnt; 2551 --timercnt;
2141 2552
2142 if (expect_true (active < timercnt + HEAP0)) 2553 if (expect_true (active < timercnt + HEAP0))
2143 { 2554 {
… …
2176 } 2587 }
2177 2588
2178 EV_FREQUENT_CHECK; 2589 EV_FREQUENT_CHECK;
2179} 2590}
2180 2591
2592ev_tstamp
2593ev_timer_remaining (EV_P_ ev_timer *w)
2594{
2595 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
2596}
2597
2181#if EV_PERIODIC_ENABLE 2598#if EV_PERIODIC_ENABLE
2182void noinline 2599void noinline
2183ev_periodic_start (EV_P_ ev_periodic *w) 2600ev_periodic_start (EV_P_ ev_periodic *w)
2184{ 2601{
2185 if (expect_false (ev_is_active (w))) 2602 if (expect_false (ev_is_active (w)))
… …
2187 2604
2188 if (w->reschedule_cb) 2605 if (w->reschedule_cb)
2189 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2606 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2190 else if (w->interval) 2607 else if (w->interval)
2191 { 2608 {
2192 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); 2609 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2193 /* this formula differs from the one in periodic_reify because we do not always round up */ 2610 /* this formula differs from the one in periodic_reify because we do not always round up */
2194 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2611 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2195 } 2612 }
2196 else 2613 else
2197 ev_at (w) = w->offset; 2614 ev_at (w) = w->offset;
… …
2205 ANHE_at_cache (periodics [ev_active (w)]); 2622 ANHE_at_cache (periodics [ev_active (w)]);
2206 upheap (periodics, ev_active (w)); 2623 upheap (periodics, ev_active (w));
2207 2624
2208 EV_FREQUENT_CHECK; 2625 EV_FREQUENT_CHECK;
2209 2626
2210 /*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 2627 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2211} 2628}
2212 2629
2213void noinline 2630void noinline
2214ev_periodic_stop (EV_P_ ev_periodic *w) 2631ev_periodic_stop (EV_P_ ev_periodic *w)
2215{ 2632{
… …
2220 EV_FREQUENT_CHECK; 2637 EV_FREQUENT_CHECK;
2221 2638
2222 { 2639 {
2223 int active = ev_active (w); 2640 int active = ev_active (w);
2224 2641
2225 assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); 2642 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
2226 2643
2227 --periodiccnt; 2644 --periodiccnt;
2228 2645
2229 if (expect_true (active < periodiccnt + HEAP0)) 2646 if (expect_true (active < periodiccnt + HEAP0))
2230 { 2647 {
… …
2252#endif 2669#endif
2253 2670
2254void noinline 2671void noinline
2255ev_signal_start (EV_P_ ev_signal *w) 2672ev_signal_start (EV_P_ ev_signal *w)
2256{ 2673{
2257#if EV_MULTIPLICITY
2258 assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2259#endif
2260 if (expect_false (ev_is_active (w))) 2674 if (expect_false (ev_is_active (w)))
2261 return; 2675 return;
2262 2676
2263 assert (("ev_signal_start called with illegal signal number", w->signum > 0)); 2677 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
2264 2678
2265 evpipe_init (EV_A); 2679#if EV_MULTIPLICITY
2680 assert (("libev: a signal must not be attached to two different loops",
2681 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
2266 2682
2267 EV_FREQUENT_CHECK; 2683 signals [w->signum - 1].loop = EV_A;
2684#endif
2268 2685
2686 EV_FREQUENT_CHECK;
2687
2688#if EV_USE_SIGNALFD
2689 if (sigfd == -2)
2269 { 2690 {
2270#ifndef _WIN32 2691 sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC);
2271 sigset_t full, prev; 2692 if (sigfd < 0 && errno == EINVAL)
2272 sigfillset (&full); 2693 sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */
2273 sigprocmask (SIG_SETMASK, &full, &prev);
2274#endif
2275 2694
2276 array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); 2695 if (sigfd >= 0)
2696 {
2697 fd_intern (sigfd); /* doing it twice will not hurt */
2277 2698
2278#ifndef _WIN32 2699 sigemptyset (&sigfd_set);
2279 sigprocmask (SIG_SETMASK, &prev, 0); 2700
2280#endif 2701 ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ);
2702 ev_set_priority (&sigfd_w, EV_MAXPRI);
2703 ev_io_start (EV_A_ &sigfd_w);
2704 ev_unref (EV_A); /* signalfd watcher should not keep loop alive */
2705 }
2281 } 2706 }
2707
2708 if (sigfd >= 0)
2709 {
2710 /* TODO: check .head */
2711 sigaddset (&sigfd_set, w->signum);
2712 sigprocmask (SIG_BLOCK, &sigfd_set, 0);
2713
2714 signalfd (sigfd, &sigfd_set, 0);
2715 }
2716#endif
2282 2717
2283 ev_start (EV_A_ (W)w, 1); 2718 ev_start (EV_A_ (W)w, 1);
2284 wlist_add (&signals [w->signum - 1].head, (WL)w); 2719 wlist_add (&signals [w->signum - 1].head, (WL)w);
2285 2720
2286 if (!((WL)w)->next) 2721 if (!((WL)w)->next)
2722# if EV_USE_SIGNALFD
2723 if (sigfd < 0) /*TODO*/
2724# endif
2287 { 2725 {
2288#if _WIN32 2726# if _WIN32
2289 signal (w->signum, ev_sighandler); 2727 signal (w->signum, ev_sighandler);
2290#else 2728# else
2291 struct sigaction sa; 2729 struct sigaction sa;
2730
2731 evpipe_init (EV_A);
2732
2292 sa.sa_handler = ev_sighandler; 2733 sa.sa_handler = ev_sighandler;
2293 sigfillset (&sa.sa_mask); 2734 sigfillset (&sa.sa_mask);
2294 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 2735 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2295 sigaction (w->signum, &sa, 0); 2736 sigaction (w->signum, &sa, 0);
2737
2738 sigemptyset (&sa.sa_mask);
2739 sigaddset (&sa.sa_mask, w->signum);
2740 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
2296#endif 2741#endif
2297 } 2742 }
2298 2743
2299 EV_FREQUENT_CHECK; 2744 EV_FREQUENT_CHECK;
2300} 2745}
2301 2746
2302void noinline 2747void noinline
… …
2310 2755
2311 wlist_del (&signals [w->signum - 1].head, (WL)w); 2756 wlist_del (&signals [w->signum - 1].head, (WL)w);
2312 ev_stop (EV_A_ (W)w); 2757 ev_stop (EV_A_ (W)w);
2313 2758
2314 if (!signals [w->signum - 1].head) 2759 if (!signals [w->signum - 1].head)
2760 {
2761#if EV_MULTIPLICITY
2762 signals [w->signum - 1].loop = 0; /* unattach from signal */
2763#endif
2764#if EV_USE_SIGNALFD
2765 if (sigfd >= 0)
2766 {
2767 sigprocmask (SIG_UNBLOCK, &sigfd_set, 0);//D
2768 sigdelset (&sigfd_set, w->signum);
2769 signalfd (sigfd, &sigfd_set, 0);
2770 sigprocmask (SIG_BLOCK, &sigfd_set, 0);//D
2771 /*TODO: maybe unblock signal? */
2772 }
2773 else
2774#endif
2315 signal (w->signum, SIG_DFL); 2775 signal (w->signum, SIG_DFL);
2776 }
2316 2777
2317 EV_FREQUENT_CHECK; 2778 EV_FREQUENT_CHECK;
2318} 2779}
2319 2780
2320void 2781void
2321ev_child_start (EV_P_ ev_child *w) 2782ev_child_start (EV_P_ ev_child *w)
2322{ 2783{
2323#if EV_MULTIPLICITY 2784#if EV_MULTIPLICITY
2324 assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 2785 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2325#endif 2786#endif
2326 if (expect_false (ev_is_active (w))) 2787 if (expect_false (ev_is_active (w)))
2327 return; 2788 return;
2328 2789
2329 EV_FREQUENT_CHECK; 2790 EV_FREQUENT_CHECK;
… …
2354# ifdef _WIN32 2815# ifdef _WIN32
2355# undef lstat 2816# undef lstat
2356# define lstat(a,b) _stati64 (a,b) 2817# define lstat(a,b) _stati64 (a,b)
2357# endif 2818# endif
2358 2819
2359#define DEF_STAT_INTERVAL 5.0074891 2820#define DEF_STAT_INTERVAL 5.0074891
2821#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
2360#define MIN_STAT_INTERVAL 0.1074891 2822#define MIN_STAT_INTERVAL 0.1074891
2361 2823
2362static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 2824static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2363 2825
2364#if EV_USE_INOTIFY 2826#if EV_USE_INOTIFY
2365# define EV_INOTIFY_BUFSIZE 8192 2827# define EV_INOTIFY_BUFSIZE 8192
… …
2369{ 2831{
2370 w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); 2832 w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD);
2371 2833
2372 if (w->wd < 0) 2834 if (w->wd < 0)
2373 { 2835 {
2836 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2374 ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ 2837 ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2375 2838
2376 /* monitor some parent directory for speedup hints */ 2839 /* monitor some parent directory for speedup hints */
2377 /* note that exceeding the hardcoded limit is not a correctness issue, */ 2840 /* note that exceeding the hardcoded path limit is not a correctness issue, */
2378 /* but an efficiency issue only */ 2841 /* but an efficiency issue only */
2379 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) 2842 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2380 { 2843 {
2381 char path [4096]; 2844 char path [4096];
2382 strcpy (path, w->path); 2845 strcpy (path, w->path);
… …
2386 int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF 2849 int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF
2387 | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); 2850 | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);
2388 2851
2389 char *pend = strrchr (path, '/'); 2852 char *pend = strrchr (path, '/');
2390 2853
2391 if (!pend) 2854 if (!pend || pend == path)
2392 break; /* whoops, no '/', complain to your admin */ 2855 break;
2393 2856
2394 *pend = 0; 2857 *pend = 0;
2395 w->wd = inotify_add_watch (fs_fd, path, mask); 2858 w->wd = inotify_add_watch (fs_fd, path, mask);
2396 } 2859 }
2397 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 2860 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2398 } 2861 }
2399 } 2862 }
2400 else
2401 ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */
2402 2863
2403 if (w->wd >= 0) 2864 if (w->wd >= 0)
2865 {
2866 struct statfs sfs;
2867
2404 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 2868 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
2869
2870 /* now local changes will be tracked by inotify, but remote changes won't */
2871 /* unless the filesystem it known to be local, we therefore still poll */
2872 /* also do poll on <2.6.25, but with normal frequency */
2873
2874 if (fs_2625 && !statfs (w->path, &sfs))
2875 if (sfs.f_type == 0x1373 /* devfs */
2876 || sfs.f_type == 0xEF53 /* ext2/3 */
2877 || sfs.f_type == 0x3153464a /* jfs */
2878 || sfs.f_type == 0x52654973 /* reiser3 */
2879 || sfs.f_type == 0x01021994 /* tempfs */
2880 || sfs.f_type == 0x58465342 /* xfs */)
2881 return;
2882
2883 w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
2884 ev_timer_again (EV_A_ &w->timer);
2885 }
2405} 2886}
2406 2887
2407static void noinline 2888static void noinline
2408infy_del (EV_P_ ev_stat *w) 2889infy_del (EV_P_ ev_stat *w)
2409{ 2890{
… …
2423 2904
2424static void noinline 2905static void noinline
2425infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 2906infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2426{ 2907{
2427 if (slot < 0) 2908 if (slot < 0)
2428 /* overflow, need to check for all hahs slots */ 2909 /* overflow, need to check for all hash slots */
2429 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 2910 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
2430 infy_wd (EV_A_ slot, wd, ev); 2911 infy_wd (EV_A_ slot, wd, ev);
2431 else 2912 else
2432 { 2913 {
2433 WL w_; 2914 WL w_;
… …
2439 2920
2440 if (w->wd == wd || wd == -1) 2921 if (w->wd == wd || wd == -1)
2441 { 2922 {
2442 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 2923 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2443 { 2924 {
2925 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
2444 w->wd = -1; 2926 w->wd = -1;
2445 infy_add (EV_A_ w); /* re-add, no matter what */ 2927 infy_add (EV_A_ w); /* re-add, no matter what */
2446 } 2928 }
2447 2929
2448 stat_timer_cb (EV_A_ &w->timer, 0); 2930 stat_timer_cb (EV_A_ &w->timer, 0);
… …
2461 2943
2462 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) 2944 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)
2463 infy_wd (EV_A_ ev->wd, ev->wd, ev); 2945 infy_wd (EV_A_ ev->wd, ev->wd, ev);
2464} 2946}
2465 2947
2466void inline_size 2948inline_size void
2949check_2625 (EV_P)
2950{
2951 /* kernels < 2.6.25 are borked
2952 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2953 */
2954 struct utsname buf;
2955 int major, minor, micro;
2956
2957 if (uname (&buf))
2958 return;
2959
2960 if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
2961 return;
2962
2963 if (major < 2
2964 || (major == 2 && minor < 6)
2965 || (major == 2 && minor == 6 && micro < 25))
2966 return;
2967
2968 fs_2625 = 1;
2969}
2970
2971inline_size void
2467infy_init (EV_P) 2972infy_init (EV_P)
2468{ 2973{
2469 if (fs_fd != -2) 2974 if (fs_fd != -2)
2470 return; 2975 return;
2976
2977 fs_fd = -1;
2978
2979 check_2625 (EV_A);
2471 2980
2472 fs_fd = inotify_init (); 2981 fs_fd = inotify_init ();
2473 2982
2474 if (fs_fd >= 0) 2983 if (fs_fd >= 0)
2475 { 2984 {
… …
2477 ev_set_priority (&fs_w, EV_MAXPRI); 2986 ev_set_priority (&fs_w, EV_MAXPRI);
2478 ev_io_start (EV_A_ &fs_w); 2987 ev_io_start (EV_A_ &fs_w);
2479 } 2988 }
2480} 2989}
2481 2990
2482void inline_size 2991inline_size void
2483infy_fork (EV_P) 2992infy_fork (EV_P)
2484{ 2993{
2485 int slot; 2994 int slot;
2486 2995
2487 if (fs_fd < 0) 2996 if (fs_fd < 0)
… …
2503 w->wd = -1; 3012 w->wd = -1;
2504 3013
2505 if (fs_fd >= 0) 3014 if (fs_fd >= 0)
2506 infy_add (EV_A_ w); /* re-add, no matter what */ 3015 infy_add (EV_A_ w); /* re-add, no matter what */
2507 else 3016 else
2508 ev_timer_start (EV_A_ &w->timer); 3017 ev_timer_again (EV_A_ &w->timer);
2509 } 3018 }
2510
2511 } 3019 }
2512} 3020}
2513 3021
3022#endif
3023
3024#ifdef _WIN32
3025# define EV_LSTAT(p,b) _stati64 (p, b)
3026#else
3027# define EV_LSTAT(p,b) lstat (p, b)
2514#endif 3028#endif
2515 3029
2516void 3030void
2517ev_stat_stat (EV_P_ ev_stat *w) 3031ev_stat_stat (EV_P_ ev_stat *w)
2518{ 3032{
… …
2545 || w->prev.st_atime != w->attr.st_atime 3059 || w->prev.st_atime != w->attr.st_atime
2546 || w->prev.st_mtime != w->attr.st_mtime 3060 || w->prev.st_mtime != w->attr.st_mtime
2547 || w->prev.st_ctime != w->attr.st_ctime 3061 || w->prev.st_ctime != w->attr.st_ctime
2548 ) { 3062 ) {
2549 #if EV_USE_INOTIFY 3063 #if EV_USE_INOTIFY
3064 if (fs_fd >= 0)
3065 {
2550 infy_del (EV_A_ w); 3066 infy_del (EV_A_ w);
2551 infy_add (EV_A_ w); 3067 infy_add (EV_A_ w);
2552 ev_stat_stat (EV_A_ w); /* avoid race... */ 3068 ev_stat_stat (EV_A_ w); /* avoid race... */
3069 }
2553 #endif 3070 #endif
2554 3071
2555 ev_feed_event (EV_A_ w, EV_STAT); 3072 ev_feed_event (EV_A_ w, EV_STAT);
2556 } 3073 }
2557} 3074}
… …
2560ev_stat_start (EV_P_ ev_stat *w) 3077ev_stat_start (EV_P_ ev_stat *w)
2561{ 3078{
2562 if (expect_false (ev_is_active (w))) 3079 if (expect_false (ev_is_active (w)))
2563 return; 3080 return;
2564 3081
2565 /* since we use memcmp, we need to clear any padding data etc. */
2566 memset (&w->prev, 0, sizeof (ev_statdata));
2567 memset (&w->attr, 0, sizeof (ev_statdata));
2568
2569 ev_stat_stat (EV_A_ w); 3082 ev_stat_stat (EV_A_ w);
2570 3083
3084 if (w->interval < MIN_STAT_INTERVAL && w->interval)
2571 if (w->interval < MIN_STAT_INTERVAL) 3085 w->interval = MIN_STAT_INTERVAL;
2572 w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
2573 3086
2574 ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); 3087 ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL);
2575 ev_set_priority (&w->timer, ev_priority (w)); 3088 ev_set_priority (&w->timer, ev_priority (w));
2576 3089
2577#if EV_USE_INOTIFY 3090#if EV_USE_INOTIFY
2578 infy_init (EV_A); 3091 infy_init (EV_A);
2579 3092
2580 if (fs_fd >= 0) 3093 if (fs_fd >= 0)
2581 infy_add (EV_A_ w); 3094 infy_add (EV_A_ w);
2582 else 3095 else
2583#endif 3096#endif
2584 ev_timer_start (EV_A_ &w->timer); 3097 ev_timer_again (EV_A_ &w->timer);
2585 3098
2586 ev_start (EV_A_ (W)w, 1); 3099 ev_start (EV_A_ (W)w, 1);
2587 3100
2588 EV_FREQUENT_CHECK; 3101 EV_FREQUENT_CHECK;
2589} 3102}
… …
2749embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 3262embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
2750{ 3263{
2751 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); 3264 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
2752 3265
2753 { 3266 {
2754 struct ev_loop *loop = w->other; 3267 EV_P = w->other;
2755 3268
2756 while (fdchangecnt) 3269 while (fdchangecnt)
2757 { 3270 {
2758 fd_reify (EV_A); 3271 fd_reify (EV_A);
2759 ev_loop (EV_A_ EVLOOP_NONBLOCK); 3272 ev_loop (EV_A_ EVLOOP_NONBLOCK);
2760 } 3273 }
2761 } 3274 }
2762} 3275}
2763 3276
3277static void
3278embed_fork_cb (EV_P_ ev_fork *fork_w, int revents)
3279{
3280 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
3281
3282 ev_embed_stop (EV_A_ w);
3283
3284 {
3285 EV_P = w->other;
3286
3287 ev_loop_fork (EV_A);
3288 ev_loop (EV_A_ EVLOOP_NONBLOCK);
3289 }
3290
3291 ev_embed_start (EV_A_ w);
3292}
3293
2764#if 0 3294#if 0
2765static void 3295static void
2766embed_idle_cb (EV_P_ ev_idle *idle, int revents) 3296embed_idle_cb (EV_P_ ev_idle *idle, int revents)
2767{ 3297{
2768 ev_idle_stop (EV_A_ idle); 3298 ev_idle_stop (EV_A_ idle);
… …
2774{ 3304{
2775 if (expect_false (ev_is_active (w))) 3305 if (expect_false (ev_is_active (w)))
2776 return; 3306 return;
2777 3307
2778 { 3308 {
2779 struct ev_loop *loop = w->other; 3309 EV_P = w->other;
2780 assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 3310 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2781 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); 3311 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2782 } 3312 }
2783 3313
2784 EV_FREQUENT_CHECK; 3314 EV_FREQUENT_CHECK;
2785 3315
… …
2788 3318
2789 ev_prepare_init (&w->prepare, embed_prepare_cb); 3319 ev_prepare_init (&w->prepare, embed_prepare_cb);
2790 ev_set_priority (&w->prepare, EV_MINPRI); 3320 ev_set_priority (&w->prepare, EV_MINPRI);
2791 ev_prepare_start (EV_A_ &w->prepare); 3321 ev_prepare_start (EV_A_ &w->prepare);
2792 3322
3323 ev_fork_init (&w->fork, embed_fork_cb);
3324 ev_fork_start (EV_A_ &w->fork);
3325
2793 /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ 3326 /*ev_idle_init (&w->idle, e,bed_idle_cb);*/
2794 3327
2795 ev_start (EV_A_ (W)w, 1); 3328 ev_start (EV_A_ (W)w, 1);
2796 3329
2797 EV_FREQUENT_CHECK; 3330 EV_FREQUENT_CHECK;
… …
2804 if (expect_false (!ev_is_active (w))) 3337 if (expect_false (!ev_is_active (w)))
2805 return; 3338 return;
2806 3339
2807 EV_FREQUENT_CHECK; 3340 EV_FREQUENT_CHECK;
2808 3341
2809 ev_io_stop (EV_A_ &w->io); 3342 ev_io_stop (EV_A_ &w->io);
2810 ev_prepare_stop (EV_A_ &w->prepare); 3343 ev_prepare_stop (EV_A_ &w->prepare);
2811 3344 ev_fork_stop (EV_A_ &w->fork);
2812 ev_stop (EV_A_ (W)w);
2813 3345
2814 EV_FREQUENT_CHECK; 3346 EV_FREQUENT_CHECK;
2815} 3347}
2816#endif 3348#endif
2817 3349
… …
2894 3426
2895void 3427void
2896ev_async_send (EV_P_ ev_async *w) 3428ev_async_send (EV_P_ ev_async *w)
2897{ 3429{
2898 w->sent = 1; 3430 w->sent = 1;
2899 evpipe_write (EV_A_ &gotasync); 3431 evpipe_write (EV_A_ &async_pending);
2900} 3432}
2901#endif 3433#endif
2902 3434
2903/*****************************************************************************/ 3435/*****************************************************************************/
2904 3436
… …
2914once_cb (EV_P_ struct ev_once *once, int revents) 3446once_cb (EV_P_ struct ev_once *once, int revents)
2915{ 3447{
2916 void (*cb)(int revents, void *arg) = once->cb; 3448 void (*cb)(int revents, void *arg) = once->cb;
2917 void *arg = once->arg; 3449 void *arg = once->arg;
2918 3450
2919 ev_io_stop (EV_A_ &once->io); 3451 ev_io_stop (EV_A_ &once->io);
2920 ev_timer_stop (EV_A_ &once->to); 3452 ev_timer_stop (EV_A_ &once->to);
2921 ev_free (once); 3453 ev_free (once);
2922 3454
2923 cb (revents, arg); 3455 cb (revents, arg);
2924} 3456}
2925 3457
2926static void 3458static void
2927once_cb_io (EV_P_ ev_io *w, int revents) 3459once_cb_io (EV_P_ ev_io *w, int revents)
2928{ 3460{
2929 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); 3461 struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io));
3462
3463 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to));
2930} 3464}
2931 3465
2932static void 3466static void
2933once_cb_to (EV_P_ ev_timer *w, int revents) 3467once_cb_to (EV_P_ ev_timer *w, int revents)
2934{ 3468{
2935 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); 3469 struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to));
3470
3471 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
2936} 3472}
2937 3473
2938void 3474void
2939ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 3475ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)
2940{ 3476{
… …
2962 ev_timer_set (&once->to, timeout, 0.); 3498 ev_timer_set (&once->to, timeout, 0.);
2963 ev_timer_start (EV_A_ &once->to); 3499 ev_timer_start (EV_A_ &once->to);
2964 } 3500 }
2965} 3501}
2966 3502
3503/*****************************************************************************/
3504
3505#if EV_WALK_ENABLE
3506void
3507ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))
3508{
3509 int i, j;
3510 ev_watcher_list *wl, *wn;
3511
3512 if (types & (EV_IO | EV_EMBED))
3513 for (i = 0; i < anfdmax; ++i)
3514 for (wl = anfds [i].head; wl; )
3515 {
3516 wn = wl->next;
3517
3518#if EV_EMBED_ENABLE
3519 if (ev_cb ((ev_io *)wl) == embed_io_cb)
3520 {
3521 if (types & EV_EMBED)
3522 cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io));
3523 }
3524 else
3525#endif
3526#if EV_USE_INOTIFY
3527 if (ev_cb ((ev_io *)wl) == infy_cb)
3528 ;
3529 else
3530#endif
3531 if ((ev_io *)wl != &pipe_w)
3532 if (types & EV_IO)
3533 cb (EV_A_ EV_IO, wl);
3534
3535 wl = wn;
3536 }
3537
3538 if (types & (EV_TIMER | EV_STAT))
3539 for (i = timercnt + HEAP0; i-- > HEAP0; )
3540#if EV_STAT_ENABLE
3541 /*TODO: timer is not always active*/
3542 if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb)
3543 {
3544 if (types & EV_STAT)
3545 cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer));
3546 }
3547 else
3548#endif
3549 if (types & EV_TIMER)
3550 cb (EV_A_ EV_TIMER, ANHE_w (timers [i]));
3551
3552#if EV_PERIODIC_ENABLE
3553 if (types & EV_PERIODIC)
3554 for (i = periodiccnt + HEAP0; i-- > HEAP0; )
3555 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3556#endif
3557
3558#if EV_IDLE_ENABLE
3559 if (types & EV_IDLE)
3560 for (j = NUMPRI; i--; )
3561 for (i = idlecnt [j]; i--; )
3562 cb (EV_A_ EV_IDLE, idles [j][i]);
3563#endif
3564
3565#if EV_FORK_ENABLE
3566 if (types & EV_FORK)
3567 for (i = forkcnt; i--; )
3568 if (ev_cb (forks [i]) != embed_fork_cb)
3569 cb (EV_A_ EV_FORK, forks [i]);
3570#endif
3571
3572#if EV_ASYNC_ENABLE
3573 if (types & EV_ASYNC)
3574 for (i = asynccnt; i--; )
3575 cb (EV_A_ EV_ASYNC, asyncs [i]);
3576#endif
3577
3578 if (types & EV_PREPARE)
3579 for (i = preparecnt; i--; )
3580#if EV_EMBED_ENABLE
3581 if (ev_cb (prepares [i]) != embed_prepare_cb)
3582#endif
3583 cb (EV_A_ EV_PREPARE, prepares [i]);
3584
3585 if (types & EV_CHECK)
3586 for (i = checkcnt; i--; )
3587 cb (EV_A_ EV_CHECK, checks [i]);
3588
3589 if (types & EV_SIGNAL)
3590 for (i = 0; i < EV_NSIG - 1; ++i)
3591 for (wl = signals [i].head; wl; )
3592 {
3593 wn = wl->next;
3594 cb (EV_A_ EV_SIGNAL, wl);
3595 wl = wn;
3596 }
3597
3598 if (types & EV_CHILD)
3599 for (i = EV_PID_HASHSIZE; i--; )
3600 for (wl = childs [i]; wl; )
3601 {
3602 wn = wl->next;
3603 cb (EV_A_ EV_CHILD, wl);
3604 wl = wn;
3605 }
3606/* EV_STAT 0x00001000 /* stat data changed */
3607/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3608}
3609#endif
3610
2967#if EV_MULTIPLICITY 3611#if EV_MULTIPLICITY
2968 #include "ev_wrap.h" 3612 #include "ev_wrap.h"
2969#endif 3613#endif
2970 3614
2971#ifdef __cplusplus 3615#ifdef __cplusplus

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