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Comparing libev/ev.c (file contents):
Revision 1.233 by root, Tue May 6 23:34:16 2008 UTC vs.
Revision 1.314 by root, Wed Aug 26 17:31:20 2009 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
… …
47# include EV_CONFIG_H 47# include EV_CONFIG_H
48# else 48# else
49# include "config.h" 49# include "config.h"
50# endif 50# endif
51 51
52# if HAVE_CLOCK_SYSCALL
53# ifndef EV_USE_CLOCK_SYSCALL
54# define EV_USE_CLOCK_SYSCALL 1
55# ifndef EV_USE_REALTIME
56# define EV_USE_REALTIME 0
57# endif
58# ifndef EV_USE_MONOTONIC
59# define EV_USE_MONOTONIC 1
60# endif
61# endif
62# elif !defined(EV_USE_CLOCK_SYSCALL)
63# define EV_USE_CLOCK_SYSCALL 0
64# endif
65
52# if HAVE_CLOCK_GETTIME 66# if HAVE_CLOCK_GETTIME
53# ifndef EV_USE_MONOTONIC 67# ifndef EV_USE_MONOTONIC
54# define EV_USE_MONOTONIC 1 68# define EV_USE_MONOTONIC 1
55# endif 69# endif
56# ifndef EV_USE_REALTIME 70# ifndef EV_USE_REALTIME
57# define EV_USE_REALTIME 1 71# define EV_USE_REALTIME 0
58# endif 72# endif
59# else 73# else
60# ifndef EV_USE_MONOTONIC 74# ifndef EV_USE_MONOTONIC
61# define EV_USE_MONOTONIC 0 75# define EV_USE_MONOTONIC 0
62# endif 76# endif
… …
119# else 133# else
120# define EV_USE_INOTIFY 0 134# define EV_USE_INOTIFY 0
121# endif 135# endif
122# endif 136# endif
123 137
138# ifndef EV_USE_SIGNALFD
139# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H
140# define EV_USE_SIGNALFD 1
141# else
142# define EV_USE_SIGNALFD 0
143# endif
144# endif
145
124# ifndef EV_USE_EVENTFD 146# ifndef EV_USE_EVENTFD
125# if HAVE_EVENTFD 147# if HAVE_EVENTFD
126# define EV_USE_EVENTFD 1 148# define EV_USE_EVENTFD 1
127# else 149# else
128# define EV_USE_EVENTFD 0 150# define EV_USE_EVENTFD 0
129# endif 151# endif
130# endif 152# endif
131 153
132#endif 154#endif
133 155
134#include <math.h> 156#include <math.h>
135#include <stdlib.h> 157#include <stdlib.h>
136#include <fcntl.h> 158#include <fcntl.h>
… …
154#ifndef _WIN32 176#ifndef _WIN32
155# include <sys/time.h> 177# include <sys/time.h>
156# include <sys/wait.h> 178# include <sys/wait.h>
157# include <unistd.h> 179# include <unistd.h>
158#else 180#else
181# include <io.h>
159# define WIN32_LEAN_AND_MEAN 182# define WIN32_LEAN_AND_MEAN
160# include <windows.h> 183# include <windows.h>
161# ifndef EV_SELECT_IS_WINSOCKET 184# ifndef EV_SELECT_IS_WINSOCKET
162# define EV_SELECT_IS_WINSOCKET 1 185# define EV_SELECT_IS_WINSOCKET 1
163# endif 186# endif
164#endif 187#endif
165 188
166/* this block tries to deduce configuration from header-defined symbols and defaults */ 189/* this block tries to deduce configuration from header-defined symbols and defaults */
167 190
191/* try to deduce the maximum number of signals on this platform */
192#if defined (EV_NSIG)
193/* use what's provided */
194#elif defined (NSIG)
195# define EV_NSIG (NSIG)
196#elif defined(_NSIG)
197# define EV_NSIG (_NSIG)
198#elif defined (SIGMAX)
199# define EV_NSIG (SIGMAX+1)
200#elif defined (SIG_MAX)
201# define EV_NSIG (SIG_MAX+1)
202#elif defined (_SIG_MAX)
203# define EV_NSIG (_SIG_MAX+1)
204#elif defined (MAXSIG)
205# define EV_NSIG (MAXSIG+1)
206#elif defined (MAX_SIG)
207# define EV_NSIG (MAX_SIG+1)
208#elif defined (SIGARRAYSIZE)
209# define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */
210#elif defined (_sys_nsig)
211# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
212#else
213# error "unable to find value for NSIG, please report"
214/* to make it compile regardless, just remove the above line */
215# define EV_NSIG 65
216#endif
217
218#ifndef EV_USE_CLOCK_SYSCALL
219# if __linux && __GLIBC__ >= 2
220# define EV_USE_CLOCK_SYSCALL 1
221# else
222# define EV_USE_CLOCK_SYSCALL 0
223# endif
224#endif
225
168#ifndef EV_USE_MONOTONIC 226#ifndef EV_USE_MONOTONIC
227# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0
228# define EV_USE_MONOTONIC 1
229# else
169# define EV_USE_MONOTONIC 0 230# define EV_USE_MONOTONIC 0
231# endif
170#endif 232#endif
171 233
172#ifndef EV_USE_REALTIME 234#ifndef EV_USE_REALTIME
173# define EV_USE_REALTIME 0 235# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
174#endif 236#endif
175 237
176#ifndef EV_USE_NANOSLEEP 238#ifndef EV_USE_NANOSLEEP
239# if _POSIX_C_SOURCE >= 199309L
240# define EV_USE_NANOSLEEP 1
241# else
177# define EV_USE_NANOSLEEP 0 242# define EV_USE_NANOSLEEP 0
243# endif
178#endif 244#endif
179 245
180#ifndef EV_USE_SELECT 246#ifndef EV_USE_SELECT
181# define EV_USE_SELECT 1 247# define EV_USE_SELECT 1
182#endif 248#endif
… …
235# else 301# else
236# define EV_USE_EVENTFD 0 302# define EV_USE_EVENTFD 0
237# endif 303# endif
238#endif 304#endif
239 305
306#ifndef EV_USE_SIGNALFD
307# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
308# define EV_USE_SIGNALFD 1
309# else
310# define EV_USE_SIGNALFD 0
311# endif
312#endif
313
314#if 0 /* debugging */
315# define EV_VERIFY 3
316# define EV_USE_4HEAP 1
317# define EV_HEAP_CACHE_AT 1
318#endif
319
320#ifndef EV_VERIFY
321# define EV_VERIFY !EV_MINIMAL
322#endif
323
324#ifndef EV_USE_4HEAP
325# define EV_USE_4HEAP !EV_MINIMAL
326#endif
327
328#ifndef EV_HEAP_CACHE_AT
329# define EV_HEAP_CACHE_AT !EV_MINIMAL
330#endif
331
332/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
333/* which makes programs even slower. might work on other unices, too. */
334#if EV_USE_CLOCK_SYSCALL
335# include <syscall.h>
336# ifdef SYS_clock_gettime
337# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
338# undef EV_USE_MONOTONIC
339# define EV_USE_MONOTONIC 1
340# else
341# undef EV_USE_CLOCK_SYSCALL
342# define EV_USE_CLOCK_SYSCALL 0
343# endif
344#endif
345
240/* this block fixes any misconfiguration where we know we run into trouble otherwise */ 346/* this block fixes any misconfiguration where we know we run into trouble otherwise */
241 347
242#ifndef CLOCK_MONOTONIC 348#ifndef CLOCK_MONOTONIC
243# undef EV_USE_MONOTONIC 349# undef EV_USE_MONOTONIC
244# define EV_USE_MONOTONIC 0 350# define EV_USE_MONOTONIC 0
… …
259# include <sys/select.h> 365# include <sys/select.h>
260# endif 366# endif
261#endif 367#endif
262 368
263#if EV_USE_INOTIFY 369#if EV_USE_INOTIFY
370# include <sys/utsname.h>
371# include <sys/statfs.h>
264# include <sys/inotify.h> 372# include <sys/inotify.h>
373/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
374# ifndef IN_DONT_FOLLOW
375# undef EV_USE_INOTIFY
376# define EV_USE_INOTIFY 0
377# endif
265#endif 378#endif
266 379
267#if EV_SELECT_IS_WINSOCKET 380#if EV_SELECT_IS_WINSOCKET
268# include <winsock.h> 381# include <winsock.h>
269#endif 382#endif
270 383
271#if EV_USE_EVENTFD 384#if EV_USE_EVENTFD
272/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 385/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
273# include <stdint.h> 386# include <stdint.h>
387# ifndef EFD_NONBLOCK
388# define EFD_NONBLOCK O_NONBLOCK
389# endif
390# ifndef EFD_CLOEXEC
391# ifdef O_CLOEXEC
392# define EFD_CLOEXEC O_CLOEXEC
393# else
394# define EFD_CLOEXEC 02000000
395# endif
396# endif
274# ifdef __cplusplus 397# ifdef __cplusplus
275extern "C" { 398extern "C" {
276# endif 399# endif
277int eventfd (unsigned int initval, int flags); 400int eventfd (unsigned int initval, int flags);
278# ifdef __cplusplus 401# ifdef __cplusplus
279} 402}
280# endif 403# endif
281#endif 404#endif
282 405
406#if EV_USE_SIGNALFD
407/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
408# include <stdint.h>
409# ifndef SFD_NONBLOCK
410# define SFD_NONBLOCK O_NONBLOCK
411# endif
412# ifndef SFD_CLOEXEC
413# ifdef O_CLOEXEC
414# define SFD_CLOEXEC O_CLOEXEC
415# else
416# define SFD_CLOEXEC 02000000
417# endif
418# endif
419# ifdef __cplusplus
420extern "C" {
421# endif
422int signalfd (int fd, const sigset_t *mask, int flags);
423
424struct signalfd_siginfo
425{
426 uint32_t ssi_signo;
427 char pad[128 - sizeof (uint32_t)];
428};
429# ifdef __cplusplus
430}
431# endif
432#endif
433
434
283/**/ 435/**/
436
437#if EV_VERIFY >= 3
438# define EV_FREQUENT_CHECK ev_loop_verify (EV_A)
439#else
440# define EV_FREQUENT_CHECK do { } while (0)
441#endif
284 442
285/* 443/*
286 * This is used to avoid floating point rounding problems. 444 * This is used to avoid floating point rounding problems.
287 * It is added to ev_rt_now when scheduling periodics 445 * It is added to ev_rt_now when scheduling periodics
288 * to ensure progress, time-wise, even when rounding 446 * to ensure progress, time-wise, even when rounding
… …
315# define inline_speed static noinline 473# define inline_speed static noinline
316#else 474#else
317# define inline_speed static inline 475# define inline_speed static inline
318#endif 476#endif
319 477
320#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 478#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
479
480#if EV_MINPRI == EV_MAXPRI
481# define ABSPRI(w) (((W)w), 0)
482#else
321#define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 483# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
484#endif
322 485
323#define EMPTY /* required for microsofts broken pseudo-c compiler */ 486#define EMPTY /* required for microsofts broken pseudo-c compiler */
324#define EMPTY2(a,b) /* used to suppress some warnings */ 487#define EMPTY2(a,b) /* used to suppress some warnings */
325 488
326typedef ev_watcher *W; 489typedef ev_watcher *W;
… …
328typedef ev_watcher_time *WT; 491typedef ev_watcher_time *WT;
329 492
330#define ev_active(w) ((W)(w))->active 493#define ev_active(w) ((W)(w))->active
331#define ev_at(w) ((WT)(w))->at 494#define ev_at(w) ((WT)(w))->at
332 495
333#if EV_USE_MONOTONIC 496#if EV_USE_REALTIME
334/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 497/* sig_atomic_t is used to avoid per-thread variables or locking but still */
335/* giving it a reasonably high chance of working on typical architetcures */ 498/* giving it a reasonably high chance of working on typical architetcures */
499static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
500#endif
501
502#if EV_USE_MONOTONIC
336static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 503static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
504#endif
505
506#ifndef EV_FD_TO_WIN32_HANDLE
507# define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd)
508#endif
509#ifndef EV_WIN32_HANDLE_TO_FD
510# define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (fd, 0)
511#endif
512#ifndef EV_WIN32_CLOSE_FD
513# define EV_WIN32_CLOSE_FD(fd) close (fd)
337#endif 514#endif
338 515
339#ifdef _WIN32 516#ifdef _WIN32
340# include "ev_win32.c" 517# include "ev_win32.c"
341#endif 518#endif
… …
349{ 526{
350 syserr_cb = cb; 527 syserr_cb = cb;
351} 528}
352 529
353static void noinline 530static void noinline
354syserr (const char *msg) 531ev_syserr (const char *msg)
355{ 532{
356 if (!msg) 533 if (!msg)
357 msg = "(libev) system error"; 534 msg = "(libev) system error";
358 535
359 if (syserr_cb) 536 if (syserr_cb)
… …
405#define ev_malloc(size) ev_realloc (0, (size)) 582#define ev_malloc(size) ev_realloc (0, (size))
406#define ev_free(ptr) ev_realloc ((ptr), 0) 583#define ev_free(ptr) ev_realloc ((ptr), 0)
407 584
408/*****************************************************************************/ 585/*****************************************************************************/
409 586
587/* set in reify when reification needed */
588#define EV_ANFD_REIFY 1
589
590/* file descriptor info structure */
410typedef struct 591typedef struct
411{ 592{
412 WL head; 593 WL head;
413 unsigned char events; 594 unsigned char events; /* the events watched for */
595 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
596 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
414 unsigned char reify; 597 unsigned char unused;
598#if EV_USE_EPOLL
599 unsigned int egen; /* generation counter to counter epoll bugs */
600#endif
415#if EV_SELECT_IS_WINSOCKET 601#if EV_SELECT_IS_WINSOCKET
416 SOCKET handle; 602 SOCKET handle;
417#endif 603#endif
418} ANFD; 604} ANFD;
419 605
606/* stores the pending event set for a given watcher */
420typedef struct 607typedef struct
421{ 608{
422 W w; 609 W w;
423 int events; 610 int events; /* the pending event set for the given watcher */
424} ANPENDING; 611} ANPENDING;
425 612
426#if EV_USE_INOTIFY 613#if EV_USE_INOTIFY
614/* hash table entry per inotify-id */
427typedef struct 615typedef struct
428{ 616{
429 WL head; 617 WL head;
430} ANFS; 618} ANFS;
619#endif
620
621/* Heap Entry */
622#if EV_HEAP_CACHE_AT
623 /* a heap element */
624 typedef struct {
625 ev_tstamp at;
626 WT w;
627 } ANHE;
628
629 #define ANHE_w(he) (he).w /* access watcher, read-write */
630 #define ANHE_at(he) (he).at /* access cached at, read-only */
631 #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */
632#else
633 /* a heap element */
634 typedef WT ANHE;
635
636 #define ANHE_w(he) (he)
637 #define ANHE_at(he) (he)->at
638 #define ANHE_at_cache(he)
431#endif 639#endif
432 640
433#if EV_MULTIPLICITY 641#if EV_MULTIPLICITY
434 642
435 struct ev_loop 643 struct ev_loop
… …
454 662
455 static int ev_default_loop_ptr; 663 static int ev_default_loop_ptr;
456 664
457#endif 665#endif
458 666
667#if EV_MINIMAL < 2
668# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
669# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
670# define EV_INVOKE_PENDING invoke_cb (EV_A)
671#else
672# define EV_RELEASE_CB (void)0
673# define EV_ACQUIRE_CB (void)0
674# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
675#endif
676
677#define EVUNLOOP_RECURSE 0x80
678
459/*****************************************************************************/ 679/*****************************************************************************/
460 680
681#ifndef EV_HAVE_EV_TIME
461ev_tstamp 682ev_tstamp
462ev_time (void) 683ev_time (void)
463{ 684{
464#if EV_USE_REALTIME 685#if EV_USE_REALTIME
686 if (expect_true (have_realtime))
687 {
465 struct timespec ts; 688 struct timespec ts;
466 clock_gettime (CLOCK_REALTIME, &ts); 689 clock_gettime (CLOCK_REALTIME, &ts);
467 return ts.tv_sec + ts.tv_nsec * 1e-9; 690 return ts.tv_sec + ts.tv_nsec * 1e-9;
468#else 691 }
692#endif
693
469 struct timeval tv; 694 struct timeval tv;
470 gettimeofday (&tv, 0); 695 gettimeofday (&tv, 0);
471 return tv.tv_sec + tv.tv_usec * 1e-6; 696 return tv.tv_sec + tv.tv_usec * 1e-6;
472#endif
473} 697}
698#endif
474 699
475ev_tstamp inline_size 700inline_size ev_tstamp
476get_clock (void) 701get_clock (void)
477{ 702{
478#if EV_USE_MONOTONIC 703#if EV_USE_MONOTONIC
479 if (expect_true (have_monotonic)) 704 if (expect_true (have_monotonic))
480 { 705 {
… …
513 struct timeval tv; 738 struct timeval tv;
514 739
515 tv.tv_sec = (time_t)delay; 740 tv.tv_sec = (time_t)delay;
516 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); 741 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
517 742
743 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
744 /* something not guaranteed by newer posix versions, but guaranteed */
745 /* by older ones */
518 select (0, 0, 0, 0, &tv); 746 select (0, 0, 0, 0, &tv);
519#endif 747#endif
520 } 748 }
521} 749}
522 750
523/*****************************************************************************/ 751/*****************************************************************************/
524 752
525#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ 753#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
526 754
527int inline_size 755/* find a suitable new size for the given array, */
756/* hopefully by rounding to a ncie-to-malloc size */
757inline_size int
528array_nextsize (int elem, int cur, int cnt) 758array_nextsize (int elem, int cur, int cnt)
529{ 759{
530 int ncur = cur + 1; 760 int ncur = cur + 1;
531 761
532 do 762 do
… …
549array_realloc (int elem, void *base, int *cur, int cnt) 779array_realloc (int elem, void *base, int *cur, int cnt)
550{ 780{
551 *cur = array_nextsize (elem, *cur, cnt); 781 *cur = array_nextsize (elem, *cur, cnt);
552 return ev_realloc (base, elem * *cur); 782 return ev_realloc (base, elem * *cur);
553} 783}
784
785#define array_init_zero(base,count) \
786 memset ((void *)(base), 0, sizeof (*(base)) * (count))
554 787
555#define array_needsize(type,base,cur,cnt,init) \ 788#define array_needsize(type,base,cur,cnt,init) \
556 if (expect_false ((cnt) > (cur))) \ 789 if (expect_false ((cnt) > (cur))) \
557 { \ 790 { \
558 int ocur_ = (cur); \ 791 int ocur_ = (cur); \
… …
570 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ 803 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
571 } 804 }
572#endif 805#endif
573 806
574#define array_free(stem, idx) \ 807#define array_free(stem, idx) \
575 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; 808 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
576 809
577/*****************************************************************************/ 810/*****************************************************************************/
811
812/* dummy callback for pending events */
813static void noinline
814pendingcb (EV_P_ ev_prepare *w, int revents)
815{
816}
578 817
579void noinline 818void noinline
580ev_feed_event (EV_P_ void *w, int revents) 819ev_feed_event (EV_P_ void *w, int revents)
581{ 820{
582 W w_ = (W)w; 821 W w_ = (W)w;
… …
591 pendings [pri][w_->pending - 1].w = w_; 830 pendings [pri][w_->pending - 1].w = w_;
592 pendings [pri][w_->pending - 1].events = revents; 831 pendings [pri][w_->pending - 1].events = revents;
593 } 832 }
594} 833}
595 834
596void inline_speed 835inline_speed void
836feed_reverse (EV_P_ W w)
837{
838 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2);
839 rfeeds [rfeedcnt++] = w;
840}
841
842inline_size void
843feed_reverse_done (EV_P_ int revents)
844{
845 do
846 ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents);
847 while (rfeedcnt);
848}
849
850inline_speed void
597queue_events (EV_P_ W *events, int eventcnt, int type) 851queue_events (EV_P_ W *events, int eventcnt, int type)
598{ 852{
599 int i; 853 int i;
600 854
601 for (i = 0; i < eventcnt; ++i) 855 for (i = 0; i < eventcnt; ++i)
602 ev_feed_event (EV_A_ events [i], type); 856 ev_feed_event (EV_A_ events [i], type);
603} 857}
604 858
605/*****************************************************************************/ 859/*****************************************************************************/
606 860
607void inline_size 861inline_speed void
608anfds_init (ANFD *base, int count)
609{
610 while (count--)
611 {
612 base->head = 0;
613 base->events = EV_NONE;
614 base->reify = 0;
615
616 ++base;
617 }
618}
619
620void inline_speed
621fd_event (EV_P_ int fd, int revents) 862fd_event_nc (EV_P_ int fd, int revents)
622{ 863{
623 ANFD *anfd = anfds + fd; 864 ANFD *anfd = anfds + fd;
624 ev_io *w; 865 ev_io *w;
625 866
626 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 867 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
630 if (ev) 871 if (ev)
631 ev_feed_event (EV_A_ (W)w, ev); 872 ev_feed_event (EV_A_ (W)w, ev);
632 } 873 }
633} 874}
634 875
876/* do not submit kernel events for fds that have reify set */
877/* because that means they changed while we were polling for new events */
878inline_speed void
879fd_event (EV_P_ int fd, int revents)
880{
881 ANFD *anfd = anfds + fd;
882
883 if (expect_true (!anfd->reify))
884 fd_event_nc (EV_A_ fd, revents);
885}
886
635void 887void
636ev_feed_fd_event (EV_P_ int fd, int revents) 888ev_feed_fd_event (EV_P_ int fd, int revents)
637{ 889{
638 if (fd >= 0 && fd < anfdmax) 890 if (fd >= 0 && fd < anfdmax)
639 fd_event (EV_A_ fd, revents); 891 fd_event_nc (EV_A_ fd, revents);
640} 892}
641 893
642void inline_size 894/* make sure the external fd watch events are in-sync */
895/* with the kernel/libev internal state */
896inline_size void
643fd_reify (EV_P) 897fd_reify (EV_P)
644{ 898{
645 int i; 899 int i;
646 900
647 for (i = 0; i < fdchangecnt; ++i) 901 for (i = 0; i < fdchangecnt; ++i)
… …
656 events |= (unsigned char)w->events; 910 events |= (unsigned char)w->events;
657 911
658#if EV_SELECT_IS_WINSOCKET 912#if EV_SELECT_IS_WINSOCKET
659 if (events) 913 if (events)
660 { 914 {
661 unsigned long argp; 915 unsigned long arg;
662 #ifdef EV_FD_TO_WIN32_HANDLE
663 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 916 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
664 #else
665 anfd->handle = _get_osfhandle (fd);
666 #endif
667 assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); 917 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
668 } 918 }
669#endif 919#endif
670 920
671 { 921 {
672 unsigned char o_events = anfd->events; 922 unsigned char o_events = anfd->events;
673 unsigned char o_reify = anfd->reify; 923 unsigned char o_reify = anfd->reify;
674 924
675 anfd->reify = 0; 925 anfd->reify = 0;
676 anfd->events = events; 926 anfd->events = events;
677 927
678 if (o_events != events || o_reify & EV_IOFDSET) 928 if (o_events != events || o_reify & EV__IOFDSET)
679 backend_modify (EV_A_ fd, o_events, events); 929 backend_modify (EV_A_ fd, o_events, events);
680 } 930 }
681 } 931 }
682 932
683 fdchangecnt = 0; 933 fdchangecnt = 0;
684} 934}
685 935
686void inline_size 936/* something about the given fd changed */
937inline_size void
687fd_change (EV_P_ int fd, int flags) 938fd_change (EV_P_ int fd, int flags)
688{ 939{
689 unsigned char reify = anfds [fd].reify; 940 unsigned char reify = anfds [fd].reify;
690 anfds [fd].reify |= flags; 941 anfds [fd].reify |= flags;
691 942
… …
695 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 946 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
696 fdchanges [fdchangecnt - 1] = fd; 947 fdchanges [fdchangecnt - 1] = fd;
697 } 948 }
698} 949}
699 950
700void inline_speed 951/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
952inline_speed void
701fd_kill (EV_P_ int fd) 953fd_kill (EV_P_ int fd)
702{ 954{
703 ev_io *w; 955 ev_io *w;
704 956
705 while ((w = (ev_io *)anfds [fd].head)) 957 while ((w = (ev_io *)anfds [fd].head))
… …
707 ev_io_stop (EV_A_ w); 959 ev_io_stop (EV_A_ w);
708 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 960 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
709 } 961 }
710} 962}
711 963
712int inline_size 964/* check whether the given fd is atcually valid, for error recovery */
965inline_size int
713fd_valid (int fd) 966fd_valid (int fd)
714{ 967{
715#ifdef _WIN32 968#ifdef _WIN32
716 return _get_osfhandle (fd) != -1; 969 return _get_osfhandle (fd) != -1;
717#else 970#else
… …
725{ 978{
726 int fd; 979 int fd;
727 980
728 for (fd = 0; fd < anfdmax; ++fd) 981 for (fd = 0; fd < anfdmax; ++fd)
729 if (anfds [fd].events) 982 if (anfds [fd].events)
730 if (!fd_valid (fd) == -1 && errno == EBADF) 983 if (!fd_valid (fd) && errno == EBADF)
731 fd_kill (EV_A_ fd); 984 fd_kill (EV_A_ fd);
732} 985}
733 986
734/* called on ENOMEM in select/poll to kill some fds and retry */ 987/* called on ENOMEM in select/poll to kill some fds and retry */
735static void noinline 988static void noinline
… …
739 992
740 for (fd = anfdmax; fd--; ) 993 for (fd = anfdmax; fd--; )
741 if (anfds [fd].events) 994 if (anfds [fd].events)
742 { 995 {
743 fd_kill (EV_A_ fd); 996 fd_kill (EV_A_ fd);
744 return; 997 break;
745 } 998 }
746} 999}
747 1000
748/* usually called after fork if backend needs to re-arm all fds from scratch */ 1001/* usually called after fork if backend needs to re-arm all fds from scratch */
749static void noinline 1002static void noinline
… …
753 1006
754 for (fd = 0; fd < anfdmax; ++fd) 1007 for (fd = 0; fd < anfdmax; ++fd)
755 if (anfds [fd].events) 1008 if (anfds [fd].events)
756 { 1009 {
757 anfds [fd].events = 0; 1010 anfds [fd].events = 0;
1011 anfds [fd].emask = 0;
758 fd_change (EV_A_ fd, EV_IOFDSET | 1); 1012 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
759 } 1013 }
760} 1014}
761 1015
762/*****************************************************************************/ 1016/*****************************************************************************/
763 1017
1018/*
1019 * the heap functions want a real array index. array index 0 uis guaranteed to not
1020 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
1021 * the branching factor of the d-tree.
1022 */
1023
1024/*
1025 * at the moment we allow libev the luxury of two heaps,
1026 * a small-code-size 2-heap one and a ~1.5kb larger 4-heap
1027 * which is more cache-efficient.
1028 * the difference is about 5% with 50000+ watchers.
1029 */
1030#if EV_USE_4HEAP
1031
1032#define DHEAP 4
1033#define HEAP0 (DHEAP - 1) /* index of first element in heap */
1034#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0)
1035#define UPHEAP_DONE(p,k) ((p) == (k))
1036
1037/* away from the root */
1038inline_speed void
1039downheap (ANHE *heap, int N, int k)
1040{
1041 ANHE he = heap [k];
1042 ANHE *E = heap + N + HEAP0;
1043
1044 for (;;)
1045 {
1046 ev_tstamp minat;
1047 ANHE *minpos;
1048 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;
1049
1050 /* find minimum child */
1051 if (expect_true (pos + DHEAP - 1 < E))
1052 {
1053 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
1054 if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos));
1055 if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos));
1056 if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos));
1057 }
1058 else if (pos < E)
1059 {
1060 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
1061 if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos));
1062 if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos));
1063 if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos));
1064 }
1065 else
1066 break;
1067
1068 if (ANHE_at (he) <= minat)
1069 break;
1070
1071 heap [k] = *minpos;
1072 ev_active (ANHE_w (*minpos)) = k;
1073
1074 k = minpos - heap;
1075 }
1076
1077 heap [k] = he;
1078 ev_active (ANHE_w (he)) = k;
1079}
1080
1081#else /* 4HEAP */
1082
1083#define HEAP0 1
1084#define HPARENT(k) ((k) >> 1)
1085#define UPHEAP_DONE(p,k) (!(p))
1086
1087/* away from the root */
1088inline_speed void
1089downheap (ANHE *heap, int N, int k)
1090{
1091 ANHE he = heap [k];
1092
1093 for (;;)
1094 {
1095 int c = k << 1;
1096
1097 if (c >= N + HEAP0)
1098 break;
1099
1100 c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])
1101 ? 1 : 0;
1102
1103 if (ANHE_at (he) <= ANHE_at (heap [c]))
1104 break;
1105
1106 heap [k] = heap [c];
1107 ev_active (ANHE_w (heap [k])) = k;
1108
1109 k = c;
1110 }
1111
1112 heap [k] = he;
1113 ev_active (ANHE_w (he)) = k;
1114}
1115#endif
1116
764/* towards the root */ 1117/* towards the root */
765void inline_speed 1118inline_speed void
766upheap (WT *heap, int k) 1119upheap (ANHE *heap, int k)
767{ 1120{
768 WT w = heap [k]; 1121 ANHE he = heap [k];
769 1122
770 for (;;) 1123 for (;;)
771 { 1124 {
772 int p = k >> 1; 1125 int p = HPARENT (k);
773 1126
774 /* maybe we could use a dummy element at heap [0]? */ 1127 if (UPHEAP_DONE (p, k) || ANHE_at (heap [p]) <= ANHE_at (he))
775 if (!p || heap [p]->at <= w->at)
776 break; 1128 break;
777 1129
778 heap [k] = heap [p]; 1130 heap [k] = heap [p];
779 ev_active (heap [k]) = k; 1131 ev_active (ANHE_w (heap [k])) = k;
780 k = p; 1132 k = p;
781 } 1133 }
782 1134
783 heap [k] = w; 1135 heap [k] = he;
784 ev_active (heap [k]) = k; 1136 ev_active (ANHE_w (he)) = k;
785} 1137}
786 1138
787/* away from the root */ 1139/* move an element suitably so it is in a correct place */
788void inline_speed 1140inline_size void
789downheap (WT *heap, int N, int k)
790{
791 WT w = heap [k];
792
793 for (;;)
794 {
795 int c = k << 1;
796
797 if (c > N)
798 break;
799
800 c += c < N && heap [c]->at > heap [c + 1]->at
801 ? 1 : 0;
802
803 if (w->at <= heap [c]->at)
804 break;
805
806 heap [k] = heap [c];
807 ev_active (heap [k]) = k;
808
809 k = c;
810 }
811
812 heap [k] = w;
813 ev_active (heap [k]) = k;
814}
815
816void inline_size
817adjustheap (WT *heap, int N, int k) 1141adjustheap (ANHE *heap, int N, int k)
818{ 1142{
1143 if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)]))
819 upheap (heap, k); 1144 upheap (heap, k);
1145 else
820 downheap (heap, N, k); 1146 downheap (heap, N, k);
1147}
1148
1149/* rebuild the heap: this function is used only once and executed rarely */
1150inline_size void
1151reheap (ANHE *heap, int N)
1152{
1153 int i;
1154
1155 /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */
1156 /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */
1157 for (i = 0; i < N; ++i)
1158 upheap (heap, i + HEAP0);
821} 1159}
822 1160
823/*****************************************************************************/ 1161/*****************************************************************************/
824 1162
1163/* associate signal watchers to a signal signal */
825typedef struct 1164typedef struct
826{ 1165{
1166 EV_ATOMIC_T pending;
1167#if EV_MULTIPLICITY
1168 EV_P;
1169#endif
827 WL head; 1170 WL head;
828 EV_ATOMIC_T gotsig;
829} ANSIG; 1171} ANSIG;
830 1172
831static ANSIG *signals; 1173static ANSIG signals [EV_NSIG - 1];
832static int signalmax;
833
834static EV_ATOMIC_T gotsig;
835
836void inline_size
837signals_init (ANSIG *base, int count)
838{
839 while (count--)
840 {
841 base->head = 0;
842 base->gotsig = 0;
843
844 ++base;
845 }
846}
847 1174
848/*****************************************************************************/ 1175/*****************************************************************************/
849 1176
850void inline_speed 1177/* used to prepare libev internal fd's */
1178/* this is not fork-safe */
1179inline_speed void
851fd_intern (int fd) 1180fd_intern (int fd)
852{ 1181{
853#ifdef _WIN32 1182#ifdef _WIN32
854 int arg = 1; 1183 unsigned long arg = 1;
855 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); 1184 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
856#else 1185#else
857 fcntl (fd, F_SETFD, FD_CLOEXEC); 1186 fcntl (fd, F_SETFD, FD_CLOEXEC);
858 fcntl (fd, F_SETFL, O_NONBLOCK); 1187 fcntl (fd, F_SETFL, O_NONBLOCK);
859#endif 1188#endif
860} 1189}
861 1190
862static void noinline 1191static void noinline
863evpipe_init (EV_P) 1192evpipe_init (EV_P)
864{ 1193{
865 if (!ev_is_active (&pipeev)) 1194 if (!ev_is_active (&pipe_w))
866 { 1195 {
867#if EV_USE_EVENTFD 1196#if EV_USE_EVENTFD
1197 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1198 if (evfd < 0 && errno == EINVAL)
868 if ((evfd = eventfd (0, 0)) >= 0) 1199 evfd = eventfd (0, 0);
1200
1201 if (evfd >= 0)
869 { 1202 {
870 evpipe [0] = -1; 1203 evpipe [0] = -1;
871 fd_intern (evfd); 1204 fd_intern (evfd); /* doing it twice doesn't hurt */
872 ev_io_set (&pipeev, evfd, EV_READ); 1205 ev_io_set (&pipe_w, evfd, EV_READ);
873 } 1206 }
874 else 1207 else
875#endif 1208#endif
876 { 1209 {
877 while (pipe (evpipe)) 1210 while (pipe (evpipe))
878 syserr ("(libev) error creating signal/async pipe"); 1211 ev_syserr ("(libev) error creating signal/async pipe");
879 1212
880 fd_intern (evpipe [0]); 1213 fd_intern (evpipe [0]);
881 fd_intern (evpipe [1]); 1214 fd_intern (evpipe [1]);
882 ev_io_set (&pipeev, evpipe [0], EV_READ); 1215 ev_io_set (&pipe_w, evpipe [0], EV_READ);
883 } 1216 }
884 1217
885 ev_io_start (EV_A_ &pipeev); 1218 ev_io_start (EV_A_ &pipe_w);
886 ev_unref (EV_A); /* watcher should not keep loop alive */ 1219 ev_unref (EV_A); /* watcher should not keep loop alive */
887 } 1220 }
888} 1221}
889 1222
890void inline_size 1223inline_size void
891evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1224evpipe_write (EV_P_ EV_ATOMIC_T *flag)
892{ 1225{
893 if (!*flag) 1226 if (!*flag)
894 { 1227 {
895 int old_errno = errno; /* save errno because write might clobber it */ 1228 int old_errno = errno; /* save errno because write might clobber it */
… …
908 1241
909 errno = old_errno; 1242 errno = old_errno;
910 } 1243 }
911} 1244}
912 1245
1246/* called whenever the libev signal pipe */
1247/* got some events (signal, async) */
913static void 1248static void
914pipecb (EV_P_ ev_io *iow, int revents) 1249pipecb (EV_P_ ev_io *iow, int revents)
915{ 1250{
1251 int i;
1252
916#if EV_USE_EVENTFD 1253#if EV_USE_EVENTFD
917 if (evfd >= 0) 1254 if (evfd >= 0)
918 { 1255 {
919 uint64_t counter; 1256 uint64_t counter;
920 read (evfd, &counter, sizeof (uint64_t)); 1257 read (evfd, &counter, sizeof (uint64_t));
… …
924 { 1261 {
925 char dummy; 1262 char dummy;
926 read (evpipe [0], &dummy, 1); 1263 read (evpipe [0], &dummy, 1);
927 } 1264 }
928 1265
929 if (gotsig && ev_is_default_loop (EV_A)) 1266 if (sig_pending)
930 { 1267 {
931 int signum; 1268 sig_pending = 0;
932 gotsig = 0;
933 1269
934 for (signum = signalmax; signum--; ) 1270 for (i = EV_NSIG - 1; i--; )
935 if (signals [signum].gotsig) 1271 if (expect_false (signals [i].pending))
936 ev_feed_signal_event (EV_A_ signum + 1); 1272 ev_feed_signal_event (EV_A_ i + 1);
937 } 1273 }
938 1274
939#if EV_ASYNC_ENABLE 1275#if EV_ASYNC_ENABLE
940 if (gotasync) 1276 if (async_pending)
941 { 1277 {
942 int i; 1278 async_pending = 0;
943 gotasync = 0;
944 1279
945 for (i = asynccnt; i--; ) 1280 for (i = asynccnt; i--; )
946 if (asyncs [i]->sent) 1281 if (asyncs [i]->sent)
947 { 1282 {
948 asyncs [i]->sent = 0; 1283 asyncs [i]->sent = 0;
… …
956 1291
957static void 1292static void
958ev_sighandler (int signum) 1293ev_sighandler (int signum)
959{ 1294{
960#if EV_MULTIPLICITY 1295#if EV_MULTIPLICITY
961 struct ev_loop *loop = &default_loop_struct; 1296 EV_P = signals [signum - 1].loop;
962#endif 1297#endif
963 1298
964#if _WIN32 1299#if _WIN32
965 signal (signum, ev_sighandler); 1300 signal (signum, ev_sighandler);
966#endif 1301#endif
967 1302
968 signals [signum - 1].gotsig = 1; 1303 signals [signum - 1].pending = 1;
969 evpipe_write (EV_A_ &gotsig); 1304 evpipe_write (EV_A_ &sig_pending);
970} 1305}
971 1306
972void noinline 1307void noinline
973ev_feed_signal_event (EV_P_ int signum) 1308ev_feed_signal_event (EV_P_ int signum)
974{ 1309{
975 WL w; 1310 WL w;
976 1311
1312 if (expect_false (signum <= 0 || signum > EV_NSIG))
1313 return;
1314
1315 --signum;
1316
977#if EV_MULTIPLICITY 1317#if EV_MULTIPLICITY
978 assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); 1318 /* it is permissible to try to feed a signal to the wrong loop */
979#endif 1319 /* or, likely more useful, feeding a signal nobody is waiting for */
980 1320
981 --signum; 1321 if (expect_false (signals [signum].loop != EV_A))
982
983 if (signum < 0 || signum >= signalmax)
984 return; 1322 return;
1323#endif
985 1324
986 signals [signum].gotsig = 0; 1325 signals [signum].pending = 0;
987 1326
988 for (w = signals [signum].head; w; w = w->next) 1327 for (w = signals [signum].head; w; w = w->next)
989 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 1328 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
990} 1329}
991 1330
1331#if EV_USE_SIGNALFD
1332static void
1333sigfdcb (EV_P_ ev_io *iow, int revents)
1334{
1335 struct signalfd_siginfo si[2], *sip; /* these structs are big */
1336
1337 for (;;)
1338 {
1339 ssize_t res = read (sigfd, si, sizeof (si));
1340
1341 /* not ISO-C, as res might be -1, but works with SuS */
1342 for (sip = si; (char *)sip < (char *)si + res; ++sip)
1343 ev_feed_signal_event (EV_A_ sip->ssi_signo);
1344
1345 if (res < (ssize_t)sizeof (si))
1346 break;
1347 }
1348}
1349#endif
1350
992/*****************************************************************************/ 1351/*****************************************************************************/
993 1352
994static WL childs [EV_PID_HASHSIZE]; 1353static WL childs [EV_PID_HASHSIZE];
995 1354
996#ifndef _WIN32 1355#ifndef _WIN32
… …
999 1358
1000#ifndef WIFCONTINUED 1359#ifndef WIFCONTINUED
1001# define WIFCONTINUED(status) 0 1360# define WIFCONTINUED(status) 0
1002#endif 1361#endif
1003 1362
1004void inline_speed 1363/* handle a single child status event */
1364inline_speed void
1005child_reap (EV_P_ int chain, int pid, int status) 1365child_reap (EV_P_ int chain, int pid, int status)
1006{ 1366{
1007 ev_child *w; 1367 ev_child *w;
1008 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 1368 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1009 1369
… …
1022 1382
1023#ifndef WCONTINUED 1383#ifndef WCONTINUED
1024# define WCONTINUED 0 1384# define WCONTINUED 0
1025#endif 1385#endif
1026 1386
1387/* called on sigchld etc., calls waitpid */
1027static void 1388static void
1028childcb (EV_P_ ev_signal *sw, int revents) 1389childcb (EV_P_ ev_signal *sw, int revents)
1029{ 1390{
1030 int pid, status; 1391 int pid, status;
1031 1392
… …
1112 /* kqueue is borked on everything but netbsd apparently */ 1473 /* kqueue is borked on everything but netbsd apparently */
1113 /* it usually doesn't work correctly on anything but sockets and pipes */ 1474 /* it usually doesn't work correctly on anything but sockets and pipes */
1114 flags &= ~EVBACKEND_KQUEUE; 1475 flags &= ~EVBACKEND_KQUEUE;
1115#endif 1476#endif
1116#ifdef __APPLE__ 1477#ifdef __APPLE__
1117 // flags &= ~EVBACKEND_KQUEUE; for documentation 1478 /* only select works correctly on that "unix-certified" platform */
1118 flags &= ~EVBACKEND_POLL; 1479 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1480 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1119#endif 1481#endif
1120 1482
1121 return flags; 1483 return flags;
1122} 1484}
1123 1485
… …
1137ev_backend (EV_P) 1499ev_backend (EV_P)
1138{ 1500{
1139 return backend; 1501 return backend;
1140} 1502}
1141 1503
1504#if EV_MINIMAL < 2
1142unsigned int 1505unsigned int
1143ev_loop_count (EV_P) 1506ev_loop_count (EV_P)
1144{ 1507{
1145 return loop_count; 1508 return loop_count;
1146} 1509}
1147 1510
1511unsigned int
1512ev_loop_depth (EV_P)
1513{
1514 return loop_depth;
1515}
1516
1148void 1517void
1149ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 1518ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
1150{ 1519{
1151 io_blocktime = interval; 1520 io_blocktime = interval;
1152} 1521}
… …
1155ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 1524ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
1156{ 1525{
1157 timeout_blocktime = interval; 1526 timeout_blocktime = interval;
1158} 1527}
1159 1528
1529void
1530ev_set_userdata (EV_P_ void *data)
1531{
1532 userdata = data;
1533}
1534
1535void *
1536ev_userdata (EV_P)
1537{
1538 return userdata;
1539}
1540
1541void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))
1542{
1543 invoke_cb = invoke_pending_cb;
1544}
1545
1546void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))
1547{
1548 release_cb = release;
1549 acquire_cb = acquire;
1550}
1551#endif
1552
1553/* initialise a loop structure, must be zero-initialised */
1160static void noinline 1554static void noinline
1161loop_init (EV_P_ unsigned int flags) 1555loop_init (EV_P_ unsigned int flags)
1162{ 1556{
1163 if (!backend) 1557 if (!backend)
1164 { 1558 {
1559#if EV_USE_REALTIME
1560 if (!have_realtime)
1561 {
1562 struct timespec ts;
1563
1564 if (!clock_gettime (CLOCK_REALTIME, &ts))
1565 have_realtime = 1;
1566 }
1567#endif
1568
1165#if EV_USE_MONOTONIC 1569#if EV_USE_MONOTONIC
1570 if (!have_monotonic)
1166 { 1571 {
1167 struct timespec ts; 1572 struct timespec ts;
1573
1168 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 1574 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1169 have_monotonic = 1; 1575 have_monotonic = 1;
1170 } 1576 }
1171#endif 1577#endif
1578
1579 /* pid check not overridable via env */
1580#ifndef _WIN32
1581 if (flags & EVFLAG_FORKCHECK)
1582 curpid = getpid ();
1583#endif
1584
1585 if (!(flags & EVFLAG_NOENV)
1586 && !enable_secure ()
1587 && getenv ("LIBEV_FLAGS"))
1588 flags = atoi (getenv ("LIBEV_FLAGS"));
1172 1589
1173 ev_rt_now = ev_time (); 1590 ev_rt_now = ev_time ();
1174 mn_now = get_clock (); 1591 mn_now = get_clock ();
1175 now_floor = mn_now; 1592 now_floor = mn_now;
1176 rtmn_diff = ev_rt_now - mn_now; 1593 rtmn_diff = ev_rt_now - mn_now;
1594#if EV_MINIMAL < 2
1595 invoke_cb = ev_invoke_pending;
1596#endif
1177 1597
1178 io_blocktime = 0.; 1598 io_blocktime = 0.;
1179 timeout_blocktime = 0.; 1599 timeout_blocktime = 0.;
1180 backend = 0; 1600 backend = 0;
1181 backend_fd = -1; 1601 backend_fd = -1;
1182 gotasync = 0; 1602 sig_pending = 0;
1603#if EV_ASYNC_ENABLE
1604 async_pending = 0;
1605#endif
1183#if EV_USE_INOTIFY 1606#if EV_USE_INOTIFY
1184 fs_fd = -2; 1607 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1185#endif 1608#endif
1186 1609#if EV_USE_SIGNALFD
1187 /* pid check not overridable via env */ 1610 sigfd = flags & EVFLAG_NOSIGFD ? -1 : -2;
1188#ifndef _WIN32
1189 if (flags & EVFLAG_FORKCHECK)
1190 curpid = getpid ();
1191#endif 1611#endif
1192
1193 if (!(flags & EVFLAG_NOENV)
1194 && !enable_secure ()
1195 && getenv ("LIBEV_FLAGS"))
1196 flags = atoi (getenv ("LIBEV_FLAGS"));
1197 1612
1198 if (!(flags & 0x0000ffffU)) 1613 if (!(flags & 0x0000ffffU))
1199 flags |= ev_recommended_backends (); 1614 flags |= ev_recommended_backends ();
1200 1615
1201#if EV_USE_PORT 1616#if EV_USE_PORT
… …
1212#endif 1627#endif
1213#if EV_USE_SELECT 1628#if EV_USE_SELECT
1214 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 1629 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1215#endif 1630#endif
1216 1631
1632 ev_prepare_init (&pending_w, pendingcb);
1633
1217 ev_init (&pipeev, pipecb); 1634 ev_init (&pipe_w, pipecb);
1218 ev_set_priority (&pipeev, EV_MAXPRI); 1635 ev_set_priority (&pipe_w, EV_MAXPRI);
1219 } 1636 }
1220} 1637}
1221 1638
1639/* free up a loop structure */
1222static void noinline 1640static void noinline
1223loop_destroy (EV_P) 1641loop_destroy (EV_P)
1224{ 1642{
1225 int i; 1643 int i;
1226 1644
1227 if (ev_is_active (&pipeev)) 1645 if (ev_is_active (&pipe_w))
1228 { 1646 {
1229 ev_ref (EV_A); /* signal watcher */ 1647 /*ev_ref (EV_A);*/
1230 ev_io_stop (EV_A_ &pipeev); 1648 /*ev_io_stop (EV_A_ &pipe_w);*/
1231 1649
1232#if EV_USE_EVENTFD 1650#if EV_USE_EVENTFD
1233 if (evfd >= 0) 1651 if (evfd >= 0)
1234 close (evfd); 1652 close (evfd);
1235#endif 1653#endif
1236 1654
1237 if (evpipe [0] >= 0) 1655 if (evpipe [0] >= 0)
1238 { 1656 {
1239 close (evpipe [0]); 1657 EV_WIN32_CLOSE_FD (evpipe [0]);
1240 close (evpipe [1]); 1658 EV_WIN32_CLOSE_FD (evpipe [1]);
1241 } 1659 }
1242 } 1660 }
1661
1662#if EV_USE_SIGNALFD
1663 if (ev_is_active (&sigfd_w))
1664 {
1665 /*ev_ref (EV_A);*/
1666 /*ev_io_stop (EV_A_ &sigfd_w);*/
1667
1668 close (sigfd);
1669 }
1670#endif
1243 1671
1244#if EV_USE_INOTIFY 1672#if EV_USE_INOTIFY
1245 if (fs_fd >= 0) 1673 if (fs_fd >= 0)
1246 close (fs_fd); 1674 close (fs_fd);
1247#endif 1675#endif
… …
1271#if EV_IDLE_ENABLE 1699#if EV_IDLE_ENABLE
1272 array_free (idle, [i]); 1700 array_free (idle, [i]);
1273#endif 1701#endif
1274 } 1702 }
1275 1703
1276 ev_free (anfds); anfdmax = 0; 1704 ev_free (anfds); anfds = 0; anfdmax = 0;
1277 1705
1278 /* have to use the microsoft-never-gets-it-right macro */ 1706 /* have to use the microsoft-never-gets-it-right macro */
1707 array_free (rfeed, EMPTY);
1279 array_free (fdchange, EMPTY); 1708 array_free (fdchange, EMPTY);
1280 array_free (timer, EMPTY); 1709 array_free (timer, EMPTY);
1281#if EV_PERIODIC_ENABLE 1710#if EV_PERIODIC_ENABLE
1282 array_free (periodic, EMPTY); 1711 array_free (periodic, EMPTY);
1283#endif 1712#endif
… …
1292 1721
1293 backend = 0; 1722 backend = 0;
1294} 1723}
1295 1724
1296#if EV_USE_INOTIFY 1725#if EV_USE_INOTIFY
1297void inline_size infy_fork (EV_P); 1726inline_size void infy_fork (EV_P);
1298#endif 1727#endif
1299 1728
1300void inline_size 1729inline_size void
1301loop_fork (EV_P) 1730loop_fork (EV_P)
1302{ 1731{
1303#if EV_USE_PORT 1732#if EV_USE_PORT
1304 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 1733 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
1305#endif 1734#endif
… …
1311#endif 1740#endif
1312#if EV_USE_INOTIFY 1741#if EV_USE_INOTIFY
1313 infy_fork (EV_A); 1742 infy_fork (EV_A);
1314#endif 1743#endif
1315 1744
1316 if (ev_is_active (&pipeev)) 1745 if (ev_is_active (&pipe_w))
1317 { 1746 {
1318 /* this "locks" the handlers against writing to the pipe */ 1747 /* this "locks" the handlers against writing to the pipe */
1319 /* while we modify the fd vars */ 1748 /* while we modify the fd vars */
1320 gotsig = 1; 1749 sig_pending = 1;
1321#if EV_ASYNC_ENABLE 1750#if EV_ASYNC_ENABLE
1322 gotasync = 1; 1751 async_pending = 1;
1323#endif 1752#endif
1324 1753
1325 ev_ref (EV_A); 1754 ev_ref (EV_A);
1326 ev_io_stop (EV_A_ &pipeev); 1755 ev_io_stop (EV_A_ &pipe_w);
1327 1756
1328#if EV_USE_EVENTFD 1757#if EV_USE_EVENTFD
1329 if (evfd >= 0) 1758 if (evfd >= 0)
1330 close (evfd); 1759 close (evfd);
1331#endif 1760#endif
1332 1761
1333 if (evpipe [0] >= 0) 1762 if (evpipe [0] >= 0)
1334 { 1763 {
1335 close (evpipe [0]); 1764 EV_WIN32_CLOSE_FD (evpipe [0]);
1336 close (evpipe [1]); 1765 EV_WIN32_CLOSE_FD (evpipe [1]);
1337 } 1766 }
1338 1767
1339 evpipe_init (EV_A); 1768 evpipe_init (EV_A);
1340 /* now iterate over everything, in case we missed something */ 1769 /* now iterate over everything, in case we missed something */
1341 pipecb (EV_A_ &pipeev, EV_READ); 1770 pipecb (EV_A_ &pipe_w, EV_READ);
1342 } 1771 }
1343 1772
1344 postfork = 0; 1773 postfork = 0;
1345} 1774}
1346 1775
1347#if EV_MULTIPLICITY 1776#if EV_MULTIPLICITY
1777
1348struct ev_loop * 1778struct ev_loop *
1349ev_loop_new (unsigned int flags) 1779ev_loop_new (unsigned int flags)
1350{ 1780{
1351 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 1781 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1352 1782
1353 memset (loop, 0, sizeof (struct ev_loop)); 1783 memset (EV_A, 0, sizeof (struct ev_loop));
1354
1355 loop_init (EV_A_ flags); 1784 loop_init (EV_A_ flags);
1356 1785
1357 if (ev_backend (EV_A)) 1786 if (ev_backend (EV_A))
1358 return loop; 1787 return EV_A;
1359 1788
1360 return 0; 1789 return 0;
1361} 1790}
1362 1791
1363void 1792void
… …
1370void 1799void
1371ev_loop_fork (EV_P) 1800ev_loop_fork (EV_P)
1372{ 1801{
1373 postfork = 1; /* must be in line with ev_default_fork */ 1802 postfork = 1; /* must be in line with ev_default_fork */
1374} 1803}
1804#endif /* multiplicity */
1375 1805
1806#if EV_VERIFY
1807static void noinline
1808verify_watcher (EV_P_ W w)
1809{
1810 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1811
1812 if (w->pending)
1813 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1814}
1815
1816static void noinline
1817verify_heap (EV_P_ ANHE *heap, int N)
1818{
1819 int i;
1820
1821 for (i = HEAP0; i < N + HEAP0; ++i)
1822 {
1823 assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i));
1824 assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i])));
1825 assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i]))));
1826
1827 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1828 }
1829}
1830
1831static void noinline
1832array_verify (EV_P_ W *ws, int cnt)
1833{
1834 while (cnt--)
1835 {
1836 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1837 verify_watcher (EV_A_ ws [cnt]);
1838 }
1839}
1840#endif
1841
1842#if EV_MINIMAL < 2
1843void
1844ev_loop_verify (EV_P)
1845{
1846#if EV_VERIFY
1847 int i;
1848 WL w;
1849
1850 assert (activecnt >= -1);
1851
1852 assert (fdchangemax >= fdchangecnt);
1853 for (i = 0; i < fdchangecnt; ++i)
1854 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
1855
1856 assert (anfdmax >= 0);
1857 for (i = 0; i < anfdmax; ++i)
1858 for (w = anfds [i].head; w; w = w->next)
1859 {
1860 verify_watcher (EV_A_ (W)w);
1861 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
1862 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
1863 }
1864
1865 assert (timermax >= timercnt);
1866 verify_heap (EV_A_ timers, timercnt);
1867
1868#if EV_PERIODIC_ENABLE
1869 assert (periodicmax >= periodiccnt);
1870 verify_heap (EV_A_ periodics, periodiccnt);
1871#endif
1872
1873 for (i = NUMPRI; i--; )
1874 {
1875 assert (pendingmax [i] >= pendingcnt [i]);
1876#if EV_IDLE_ENABLE
1877 assert (idleall >= 0);
1878 assert (idlemax [i] >= idlecnt [i]);
1879 array_verify (EV_A_ (W *)idles [i], idlecnt [i]);
1880#endif
1881 }
1882
1883#if EV_FORK_ENABLE
1884 assert (forkmax >= forkcnt);
1885 array_verify (EV_A_ (W *)forks, forkcnt);
1886#endif
1887
1888#if EV_ASYNC_ENABLE
1889 assert (asyncmax >= asynccnt);
1890 array_verify (EV_A_ (W *)asyncs, asynccnt);
1891#endif
1892
1893 assert (preparemax >= preparecnt);
1894 array_verify (EV_A_ (W *)prepares, preparecnt);
1895
1896 assert (checkmax >= checkcnt);
1897 array_verify (EV_A_ (W *)checks, checkcnt);
1898
1899# if 0
1900 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
1901 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
1902# endif
1903#endif
1904}
1376#endif 1905#endif
1377 1906
1378#if EV_MULTIPLICITY 1907#if EV_MULTIPLICITY
1379struct ev_loop * 1908struct ev_loop *
1380ev_default_loop_init (unsigned int flags) 1909ev_default_loop_init (unsigned int flags)
… …
1384#endif 1913#endif
1385{ 1914{
1386 if (!ev_default_loop_ptr) 1915 if (!ev_default_loop_ptr)
1387 { 1916 {
1388#if EV_MULTIPLICITY 1917#if EV_MULTIPLICITY
1389 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; 1918 EV_P = ev_default_loop_ptr = &default_loop_struct;
1390#else 1919#else
1391 ev_default_loop_ptr = 1; 1920 ev_default_loop_ptr = 1;
1392#endif 1921#endif
1393 1922
1394 loop_init (EV_A_ flags); 1923 loop_init (EV_A_ flags);
… …
1411 1940
1412void 1941void
1413ev_default_destroy (void) 1942ev_default_destroy (void)
1414{ 1943{
1415#if EV_MULTIPLICITY 1944#if EV_MULTIPLICITY
1416 struct ev_loop *loop = ev_default_loop_ptr; 1945 EV_P = ev_default_loop_ptr;
1417#endif 1946#endif
1947
1948 ev_default_loop_ptr = 0;
1418 1949
1419#ifndef _WIN32 1950#ifndef _WIN32
1420 ev_ref (EV_A); /* child watcher */ 1951 ev_ref (EV_A); /* child watcher */
1421 ev_signal_stop (EV_A_ &childev); 1952 ev_signal_stop (EV_A_ &childev);
1422#endif 1953#endif
… …
1426 1957
1427void 1958void
1428ev_default_fork (void) 1959ev_default_fork (void)
1429{ 1960{
1430#if EV_MULTIPLICITY 1961#if EV_MULTIPLICITY
1431 struct ev_loop *loop = ev_default_loop_ptr; 1962 EV_P = ev_default_loop_ptr;
1432#endif 1963#endif
1433 1964
1434 if (backend)
1435 postfork = 1; /* must be in line with ev_loop_fork */ 1965 postfork = 1; /* must be in line with ev_loop_fork */
1436} 1966}
1437 1967
1438/*****************************************************************************/ 1968/*****************************************************************************/
1439 1969
1440void 1970void
1441ev_invoke (EV_P_ void *w, int revents) 1971ev_invoke (EV_P_ void *w, int revents)
1442{ 1972{
1443 EV_CB_INVOKE ((W)w, revents); 1973 EV_CB_INVOKE ((W)w, revents);
1444} 1974}
1445 1975
1446void inline_speed 1976unsigned int
1447call_pending (EV_P) 1977ev_pending_count (EV_P)
1978{
1979 int pri;
1980 unsigned int count = 0;
1981
1982 for (pri = NUMPRI; pri--; )
1983 count += pendingcnt [pri];
1984
1985 return count;
1986}
1987
1988void noinline
1989ev_invoke_pending (EV_P)
1448{ 1990{
1449 int pri; 1991 int pri;
1450 1992
1451 for (pri = NUMPRI; pri--; ) 1993 for (pri = NUMPRI; pri--; )
1452 while (pendingcnt [pri]) 1994 while (pendingcnt [pri])
1453 { 1995 {
1454 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 1996 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1455 1997
1456 if (expect_true (p->w))
1457 {
1458 /*assert (("non-pending watcher on pending list", p->w->pending));*/ 1998 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
1999 /* ^ this is no longer true, as pending_w could be here */
1459 2000
1460 p->w->pending = 0; 2001 p->w->pending = 0;
1461 EV_CB_INVOKE (p->w, p->events); 2002 EV_CB_INVOKE (p->w, p->events);
1462 } 2003 EV_FREQUENT_CHECK;
1463 } 2004 }
1464} 2005}
1465 2006
1466void inline_size
1467timers_reify (EV_P)
1468{
1469 while (timercnt && ev_at (timers [1]) <= mn_now)
1470 {
1471 ev_timer *w = (ev_timer *)timers [1];
1472
1473 /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
1474
1475 /* first reschedule or stop timer */
1476 if (w->repeat)
1477 {
1478 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1479
1480 ev_at (w) += w->repeat;
1481 if (ev_at (w) < mn_now)
1482 ev_at (w) = mn_now;
1483
1484 downheap (timers, timercnt, 1);
1485 }
1486 else
1487 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1488
1489 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
1490 }
1491}
1492
1493#if EV_PERIODIC_ENABLE
1494void inline_size
1495periodics_reify (EV_P)
1496{
1497 while (periodiccnt && ev_at (periodics [1]) <= ev_rt_now)
1498 {
1499 ev_periodic *w = (ev_periodic *)periodics [1];
1500
1501 /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
1502
1503 /* first reschedule or stop timer */
1504 if (w->reschedule_cb)
1505 {
1506 ev_at (w) = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON);
1507 assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) > ev_rt_now));
1508 downheap (periodics, periodiccnt, 1);
1509 }
1510 else if (w->interval)
1511 {
1512 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1513 if (ev_at (w) - ev_rt_now <= TIME_EPSILON) ev_at (w) += w->interval;
1514 assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ev_at (w) > ev_rt_now));
1515 downheap (periodics, periodiccnt, 1);
1516 }
1517 else
1518 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1519
1520 ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
1521 }
1522}
1523
1524static void noinline
1525periodics_reschedule (EV_P)
1526{
1527 int i;
1528
1529 /* adjust periodics after time jump */
1530 for (i = 1; i <= periodiccnt; ++i)
1531 {
1532 ev_periodic *w = (ev_periodic *)periodics [i];
1533
1534 if (w->reschedule_cb)
1535 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1536 else if (w->interval)
1537 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1538 }
1539
1540 /* now rebuild the heap */
1541 for (i = periodiccnt >> 1; i--; )
1542 downheap (periodics, periodiccnt, i);
1543}
1544#endif
1545
1546#if EV_IDLE_ENABLE 2007#if EV_IDLE_ENABLE
1547void inline_size 2008/* make idle watchers pending. this handles the "call-idle */
2009/* only when higher priorities are idle" logic */
2010inline_size void
1548idle_reify (EV_P) 2011idle_reify (EV_P)
1549{ 2012{
1550 if (expect_false (idleall)) 2013 if (expect_false (idleall))
1551 { 2014 {
1552 int pri; 2015 int pri;
… …
1564 } 2027 }
1565 } 2028 }
1566} 2029}
1567#endif 2030#endif
1568 2031
1569void inline_speed 2032/* make timers pending */
2033inline_size void
2034timers_reify (EV_P)
2035{
2036 EV_FREQUENT_CHECK;
2037
2038 if (timercnt && ANHE_at (timers [HEAP0]) < mn_now)
2039 {
2040 do
2041 {
2042 ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]);
2043
2044 /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/
2045
2046 /* first reschedule or stop timer */
2047 if (w->repeat)
2048 {
2049 ev_at (w) += w->repeat;
2050 if (ev_at (w) < mn_now)
2051 ev_at (w) = mn_now;
2052
2053 assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.));
2054
2055 ANHE_at_cache (timers [HEAP0]);
2056 downheap (timers, timercnt, HEAP0);
2057 }
2058 else
2059 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
2060
2061 EV_FREQUENT_CHECK;
2062 feed_reverse (EV_A_ (W)w);
2063 }
2064 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
2065
2066 feed_reverse_done (EV_A_ EV_TIMEOUT);
2067 }
2068}
2069
2070#if EV_PERIODIC_ENABLE
2071/* make periodics pending */
2072inline_size void
2073periodics_reify (EV_P)
2074{
2075 EV_FREQUENT_CHECK;
2076
2077 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2078 {
2079 int feed_count = 0;
2080
2081 do
2082 {
2083 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2084
2085 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
2086
2087 /* first reschedule or stop timer */
2088 if (w->reschedule_cb)
2089 {
2090 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2091
2092 assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now));
2093
2094 ANHE_at_cache (periodics [HEAP0]);
2095 downheap (periodics, periodiccnt, HEAP0);
2096 }
2097 else if (w->interval)
2098 {
2099 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2100 /* if next trigger time is not sufficiently in the future, put it there */
2101 /* this might happen because of floating point inexactness */
2102 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
2103 {
2104 ev_at (w) += w->interval;
2105
2106 /* if interval is unreasonably low we might still have a time in the past */
2107 /* so correct this. this will make the periodic very inexact, but the user */
2108 /* has effectively asked to get triggered more often than possible */
2109 if (ev_at (w) < ev_rt_now)
2110 ev_at (w) = ev_rt_now;
2111 }
2112
2113 ANHE_at_cache (periodics [HEAP0]);
2114 downheap (periodics, periodiccnt, HEAP0);
2115 }
2116 else
2117 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
2118
2119 EV_FREQUENT_CHECK;
2120 feed_reverse (EV_A_ (W)w);
2121 }
2122 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now);
2123
2124 feed_reverse_done (EV_A_ EV_PERIODIC);
2125 }
2126}
2127
2128/* simply recalculate all periodics */
2129/* TODO: maybe ensure that at leats one event happens when jumping forward? */
2130static void noinline
2131periodics_reschedule (EV_P)
2132{
2133 int i;
2134
2135 /* adjust periodics after time jump */
2136 for (i = HEAP0; i < periodiccnt + HEAP0; ++i)
2137 {
2138 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
2139
2140 if (w->reschedule_cb)
2141 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2142 else if (w->interval)
2143 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2144
2145 ANHE_at_cache (periodics [i]);
2146 }
2147
2148 reheap (periodics, periodiccnt);
2149}
2150#endif
2151
2152/* adjust all timers by a given offset */
2153static void noinline
2154timers_reschedule (EV_P_ ev_tstamp adjust)
2155{
2156 int i;
2157
2158 for (i = 0; i < timercnt; ++i)
2159 {
2160 ANHE *he = timers + i + HEAP0;
2161 ANHE_w (*he)->at += adjust;
2162 ANHE_at_cache (*he);
2163 }
2164}
2165
2166/* fetch new monotonic and realtime times from the kernel */
2167/* also detetc if there was a timejump, and act accordingly */
2168inline_speed void
1570time_update (EV_P_ ev_tstamp max_block) 2169time_update (EV_P_ ev_tstamp max_block)
1571{ 2170{
1572 int i;
1573
1574#if EV_USE_MONOTONIC 2171#if EV_USE_MONOTONIC
1575 if (expect_true (have_monotonic)) 2172 if (expect_true (have_monotonic))
1576 { 2173 {
2174 int i;
1577 ev_tstamp odiff = rtmn_diff; 2175 ev_tstamp odiff = rtmn_diff;
1578 2176
1579 mn_now = get_clock (); 2177 mn_now = get_clock ();
1580 2178
1581 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ 2179 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
… …
1599 */ 2197 */
1600 for (i = 4; --i; ) 2198 for (i = 4; --i; )
1601 { 2199 {
1602 rtmn_diff = ev_rt_now - mn_now; 2200 rtmn_diff = ev_rt_now - mn_now;
1603 2201
1604 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) 2202 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP))
1605 return; /* all is well */ 2203 return; /* all is well */
1606 2204
1607 ev_rt_now = ev_time (); 2205 ev_rt_now = ev_time ();
1608 mn_now = get_clock (); 2206 mn_now = get_clock ();
1609 now_floor = mn_now; 2207 now_floor = mn_now;
1610 } 2208 }
1611 2209
2210 /* no timer adjustment, as the monotonic clock doesn't jump */
2211 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1612# if EV_PERIODIC_ENABLE 2212# if EV_PERIODIC_ENABLE
1613 periodics_reschedule (EV_A); 2213 periodics_reschedule (EV_A);
1614# endif 2214# endif
1615 /* no timer adjustment, as the monotonic clock doesn't jump */
1616 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1617 } 2215 }
1618 else 2216 else
1619#endif 2217#endif
1620 { 2218 {
1621 ev_rt_now = ev_time (); 2219 ev_rt_now = ev_time ();
1622 2220
1623 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) 2221 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
1624 { 2222 {
2223 /* adjust timers. this is easy, as the offset is the same for all of them */
2224 timers_reschedule (EV_A_ ev_rt_now - mn_now);
1625#if EV_PERIODIC_ENABLE 2225#if EV_PERIODIC_ENABLE
1626 periodics_reschedule (EV_A); 2226 periodics_reschedule (EV_A);
1627#endif 2227#endif
1628 /* adjust timers. this is easy, as the offset is the same for all of them */
1629 for (i = 1; i <= timercnt; ++i)
1630 ev_at (timers [i]) += ev_rt_now - mn_now;
1631 } 2228 }
1632 2229
1633 mn_now = ev_rt_now; 2230 mn_now = ev_rt_now;
1634 } 2231 }
1635} 2232}
1636 2233
1637void 2234void
1638ev_ref (EV_P)
1639{
1640 ++activecnt;
1641}
1642
1643void
1644ev_unref (EV_P)
1645{
1646 --activecnt;
1647}
1648
1649static int loop_done;
1650
1651void
1652ev_loop (EV_P_ int flags) 2235ev_loop (EV_P_ int flags)
1653{ 2236{
2237#if EV_MINIMAL < 2
2238 ++loop_depth;
2239#endif
2240
2241 assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE));
2242
1654 loop_done = EVUNLOOP_CANCEL; 2243 loop_done = EVUNLOOP_CANCEL;
1655 2244
1656 call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ 2245 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
1657 2246
1658 do 2247 do
1659 { 2248 {
2249#if EV_VERIFY >= 2
2250 ev_loop_verify (EV_A);
2251#endif
2252
1660#ifndef _WIN32 2253#ifndef _WIN32
1661 if (expect_false (curpid)) /* penalise the forking check even more */ 2254 if (expect_false (curpid)) /* penalise the forking check even more */
1662 if (expect_false (getpid () != curpid)) 2255 if (expect_false (getpid () != curpid))
1663 { 2256 {
1664 curpid = getpid (); 2257 curpid = getpid ();
… …
1670 /* we might have forked, so queue fork handlers */ 2263 /* we might have forked, so queue fork handlers */
1671 if (expect_false (postfork)) 2264 if (expect_false (postfork))
1672 if (forkcnt) 2265 if (forkcnt)
1673 { 2266 {
1674 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2267 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
1675 call_pending (EV_A); 2268 EV_INVOKE_PENDING;
1676 } 2269 }
1677#endif 2270#endif
1678 2271
1679 /* queue prepare watchers (and execute them) */ 2272 /* queue prepare watchers (and execute them) */
1680 if (expect_false (preparecnt)) 2273 if (expect_false (preparecnt))
1681 { 2274 {
1682 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 2275 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1683 call_pending (EV_A); 2276 EV_INVOKE_PENDING;
1684 } 2277 }
1685 2278
1686 if (expect_false (!activecnt)) 2279 if (expect_false (loop_done))
1687 break; 2280 break;
1688 2281
1689 /* we might have forked, so reify kernel state if necessary */ 2282 /* we might have forked, so reify kernel state if necessary */
1690 if (expect_false (postfork)) 2283 if (expect_false (postfork))
1691 loop_fork (EV_A); 2284 loop_fork (EV_A);
… …
1698 ev_tstamp waittime = 0.; 2291 ev_tstamp waittime = 0.;
1699 ev_tstamp sleeptime = 0.; 2292 ev_tstamp sleeptime = 0.;
1700 2293
1701 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 2294 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))
1702 { 2295 {
2296 /* remember old timestamp for io_blocktime calculation */
2297 ev_tstamp prev_mn_now = mn_now;
2298
1703 /* update time to cancel out callback processing overhead */ 2299 /* update time to cancel out callback processing overhead */
1704 time_update (EV_A_ 1e100); 2300 time_update (EV_A_ 1e100);
1705 2301
1706 waittime = MAX_BLOCKTIME; 2302 waittime = MAX_BLOCKTIME;
1707 2303
1708 if (timercnt) 2304 if (timercnt)
1709 { 2305 {
1710 ev_tstamp to = ev_at (timers [1]) - mn_now + backend_fudge; 2306 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge;
1711 if (waittime > to) waittime = to; 2307 if (waittime > to) waittime = to;
1712 } 2308 }
1713 2309
1714#if EV_PERIODIC_ENABLE 2310#if EV_PERIODIC_ENABLE
1715 if (periodiccnt) 2311 if (periodiccnt)
1716 { 2312 {
1717 ev_tstamp to = ev_at (periodics [1]) - ev_rt_now + backend_fudge; 2313 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge;
1718 if (waittime > to) waittime = to; 2314 if (waittime > to) waittime = to;
1719 } 2315 }
1720#endif 2316#endif
1721 2317
2318 /* don't let timeouts decrease the waittime below timeout_blocktime */
1722 if (expect_false (waittime < timeout_blocktime)) 2319 if (expect_false (waittime < timeout_blocktime))
1723 waittime = timeout_blocktime; 2320 waittime = timeout_blocktime;
1724 2321
1725 sleeptime = waittime - backend_fudge; 2322 /* extra check because io_blocktime is commonly 0 */
1726
1727 if (expect_true (sleeptime > io_blocktime)) 2323 if (expect_false (io_blocktime))
1728 sleeptime = io_blocktime;
1729
1730 if (sleeptime)
1731 { 2324 {
2325 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2326
2327 if (sleeptime > waittime - backend_fudge)
2328 sleeptime = waittime - backend_fudge;
2329
2330 if (expect_true (sleeptime > 0.))
2331 {
1732 ev_sleep (sleeptime); 2332 ev_sleep (sleeptime);
1733 waittime -= sleeptime; 2333 waittime -= sleeptime;
2334 }
1734 } 2335 }
1735 } 2336 }
1736 2337
2338#if EV_MINIMAL < 2
1737 ++loop_count; 2339 ++loop_count;
2340#endif
2341 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */
1738 backend_poll (EV_A_ waittime); 2342 backend_poll (EV_A_ waittime);
2343 assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */
1739 2344
1740 /* update ev_rt_now, do magic */ 2345 /* update ev_rt_now, do magic */
1741 time_update (EV_A_ waittime + sleeptime); 2346 time_update (EV_A_ waittime + sleeptime);
1742 } 2347 }
1743 2348
… …
1754 2359
1755 /* queue check watchers, to be executed first */ 2360 /* queue check watchers, to be executed first */
1756 if (expect_false (checkcnt)) 2361 if (expect_false (checkcnt))
1757 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 2362 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1758 2363
1759 call_pending (EV_A); 2364 EV_INVOKE_PENDING;
1760 } 2365 }
1761 while (expect_true ( 2366 while (expect_true (
1762 activecnt 2367 activecnt
1763 && !loop_done 2368 && !loop_done
1764 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 2369 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK))
1765 )); 2370 ));
1766 2371
1767 if (loop_done == EVUNLOOP_ONE) 2372 if (loop_done == EVUNLOOP_ONE)
1768 loop_done = EVUNLOOP_CANCEL; 2373 loop_done = EVUNLOOP_CANCEL;
2374
2375#if EV_MINIMAL < 2
2376 --loop_depth;
2377#endif
1769} 2378}
1770 2379
1771void 2380void
1772ev_unloop (EV_P_ int how) 2381ev_unloop (EV_P_ int how)
1773{ 2382{
1774 loop_done = how; 2383 loop_done = how;
1775} 2384}
1776 2385
2386void
2387ev_ref (EV_P)
2388{
2389 ++activecnt;
2390}
2391
2392void
2393ev_unref (EV_P)
2394{
2395 --activecnt;
2396}
2397
2398void
2399ev_now_update (EV_P)
2400{
2401 time_update (EV_A_ 1e100);
2402}
2403
2404void
2405ev_suspend (EV_P)
2406{
2407 ev_now_update (EV_A);
2408}
2409
2410void
2411ev_resume (EV_P)
2412{
2413 ev_tstamp mn_prev = mn_now;
2414
2415 ev_now_update (EV_A);
2416 timers_reschedule (EV_A_ mn_now - mn_prev);
2417#if EV_PERIODIC_ENABLE
2418 /* TODO: really do this? */
2419 periodics_reschedule (EV_A);
2420#endif
2421}
2422
1777/*****************************************************************************/ 2423/*****************************************************************************/
2424/* singly-linked list management, used when the expected list length is short */
1778 2425
1779void inline_size 2426inline_size void
1780wlist_add (WL *head, WL elem) 2427wlist_add (WL *head, WL elem)
1781{ 2428{
1782 elem->next = *head; 2429 elem->next = *head;
1783 *head = elem; 2430 *head = elem;
1784} 2431}
1785 2432
1786void inline_size 2433inline_size void
1787wlist_del (WL *head, WL elem) 2434wlist_del (WL *head, WL elem)
1788{ 2435{
1789 while (*head) 2436 while (*head)
1790 { 2437 {
1791 if (*head == elem) 2438 if (expect_true (*head == elem))
1792 { 2439 {
1793 *head = elem->next; 2440 *head = elem->next;
1794 return; 2441 break;
1795 } 2442 }
1796 2443
1797 head = &(*head)->next; 2444 head = &(*head)->next;
1798 } 2445 }
1799} 2446}
1800 2447
1801void inline_speed 2448/* internal, faster, version of ev_clear_pending */
2449inline_speed void
1802clear_pending (EV_P_ W w) 2450clear_pending (EV_P_ W w)
1803{ 2451{
1804 if (w->pending) 2452 if (w->pending)
1805 { 2453 {
1806 pendings [ABSPRI (w)][w->pending - 1].w = 0; 2454 pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w;
1807 w->pending = 0; 2455 w->pending = 0;
1808 } 2456 }
1809} 2457}
1810 2458
1811int 2459int
… …
1815 int pending = w_->pending; 2463 int pending = w_->pending;
1816 2464
1817 if (expect_true (pending)) 2465 if (expect_true (pending))
1818 { 2466 {
1819 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; 2467 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
2468 p->w = (W)&pending_w;
1820 w_->pending = 0; 2469 w_->pending = 0;
1821 p->w = 0;
1822 return p->events; 2470 return p->events;
1823 } 2471 }
1824 else 2472 else
1825 return 0; 2473 return 0;
1826} 2474}
1827 2475
1828void inline_size 2476inline_size void
1829pri_adjust (EV_P_ W w) 2477pri_adjust (EV_P_ W w)
1830{ 2478{
1831 int pri = w->priority; 2479 int pri = ev_priority (w);
1832 pri = pri < EV_MINPRI ? EV_MINPRI : pri; 2480 pri = pri < EV_MINPRI ? EV_MINPRI : pri;
1833 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; 2481 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
1834 w->priority = pri; 2482 ev_set_priority (w, pri);
1835} 2483}
1836 2484
1837void inline_speed 2485inline_speed void
1838ev_start (EV_P_ W w, int active) 2486ev_start (EV_P_ W w, int active)
1839{ 2487{
1840 pri_adjust (EV_A_ w); 2488 pri_adjust (EV_A_ w);
1841 w->active = active; 2489 w->active = active;
1842 ev_ref (EV_A); 2490 ev_ref (EV_A);
1843} 2491}
1844 2492
1845void inline_size 2493inline_size void
1846ev_stop (EV_P_ W w) 2494ev_stop (EV_P_ W w)
1847{ 2495{
1848 ev_unref (EV_A); 2496 ev_unref (EV_A);
1849 w->active = 0; 2497 w->active = 0;
1850} 2498}
… …
1857 int fd = w->fd; 2505 int fd = w->fd;
1858 2506
1859 if (expect_false (ev_is_active (w))) 2507 if (expect_false (ev_is_active (w)))
1860 return; 2508 return;
1861 2509
1862 assert (("ev_io_start called with negative fd", fd >= 0)); 2510 assert (("libev: ev_io_start called with negative fd", fd >= 0));
2511 assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2512
2513 EV_FREQUENT_CHECK;
1863 2514
1864 ev_start (EV_A_ (W)w, 1); 2515 ev_start (EV_A_ (W)w, 1);
1865 array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); 2516 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
1866 wlist_add (&anfds[fd].head, (WL)w); 2517 wlist_add (&anfds[fd].head, (WL)w);
1867 2518
1868 fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); 2519 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
1869 w->events &= ~EV_IOFDSET; 2520 w->events &= ~EV__IOFDSET;
2521
2522 EV_FREQUENT_CHECK;
1870} 2523}
1871 2524
1872void noinline 2525void noinline
1873ev_io_stop (EV_P_ ev_io *w) 2526ev_io_stop (EV_P_ ev_io *w)
1874{ 2527{
1875 clear_pending (EV_A_ (W)w); 2528 clear_pending (EV_A_ (W)w);
1876 if (expect_false (!ev_is_active (w))) 2529 if (expect_false (!ev_is_active (w)))
1877 return; 2530 return;
1878 2531
1879 assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); 2532 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
2533
2534 EV_FREQUENT_CHECK;
1880 2535
1881 wlist_del (&anfds[w->fd].head, (WL)w); 2536 wlist_del (&anfds[w->fd].head, (WL)w);
1882 ev_stop (EV_A_ (W)w); 2537 ev_stop (EV_A_ (W)w);
1883 2538
1884 fd_change (EV_A_ w->fd, 1); 2539 fd_change (EV_A_ w->fd, 1);
2540
2541 EV_FREQUENT_CHECK;
1885} 2542}
1886 2543
1887void noinline 2544void noinline
1888ev_timer_start (EV_P_ ev_timer *w) 2545ev_timer_start (EV_P_ ev_timer *w)
1889{ 2546{
1890 if (expect_false (ev_is_active (w))) 2547 if (expect_false (ev_is_active (w)))
1891 return; 2548 return;
1892 2549
1893 ev_at (w) += mn_now; 2550 ev_at (w) += mn_now;
1894 2551
1895 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 2552 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1896 2553
2554 EV_FREQUENT_CHECK;
2555
2556 ++timercnt;
1897 ev_start (EV_A_ (W)w, ++timercnt); 2557 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
1898 array_needsize (WT, timers, timermax, timercnt + 1, EMPTY2); 2558 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2);
1899 timers [timercnt] = (WT)w; 2559 ANHE_w (timers [ev_active (w)]) = (WT)w;
2560 ANHE_at_cache (timers [ev_active (w)]);
1900 upheap (timers, timercnt); 2561 upheap (timers, ev_active (w));
1901 2562
2563 EV_FREQUENT_CHECK;
2564
1902 /*assert (("internal timer heap corruption", timers [ev_active (w)] == w));*/ 2565 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
1903} 2566}
1904 2567
1905void noinline 2568void noinline
1906ev_timer_stop (EV_P_ ev_timer *w) 2569ev_timer_stop (EV_P_ ev_timer *w)
1907{ 2570{
1908 clear_pending (EV_A_ (W)w); 2571 clear_pending (EV_A_ (W)w);
1909 if (expect_false (!ev_is_active (w))) 2572 if (expect_false (!ev_is_active (w)))
1910 return; 2573 return;
1911 2574
2575 EV_FREQUENT_CHECK;
2576
1912 { 2577 {
1913 int active = ev_active (w); 2578 int active = ev_active (w);
1914 2579
1915 assert (("internal timer heap corruption", timers [active] == (WT)w)); 2580 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
1916 2581
2582 --timercnt;
2583
1917 if (expect_true (active < timercnt)) 2584 if (expect_true (active < timercnt + HEAP0))
1918 { 2585 {
1919 timers [active] = timers [timercnt]; 2586 timers [active] = timers [timercnt + HEAP0];
1920 adjustheap (timers, timercnt, active); 2587 adjustheap (timers, timercnt, active);
1921 } 2588 }
1922
1923 --timercnt;
1924 } 2589 }
2590
2591 EV_FREQUENT_CHECK;
1925 2592
1926 ev_at (w) -= mn_now; 2593 ev_at (w) -= mn_now;
1927 2594
1928 ev_stop (EV_A_ (W)w); 2595 ev_stop (EV_A_ (W)w);
1929} 2596}
1930 2597
1931void noinline 2598void noinline
1932ev_timer_again (EV_P_ ev_timer *w) 2599ev_timer_again (EV_P_ ev_timer *w)
1933{ 2600{
2601 EV_FREQUENT_CHECK;
2602
1934 if (ev_is_active (w)) 2603 if (ev_is_active (w))
1935 { 2604 {
1936 if (w->repeat) 2605 if (w->repeat)
1937 { 2606 {
1938 ev_at (w) = mn_now + w->repeat; 2607 ev_at (w) = mn_now + w->repeat;
2608 ANHE_at_cache (timers [ev_active (w)]);
1939 adjustheap (timers, timercnt, ev_active (w)); 2609 adjustheap (timers, timercnt, ev_active (w));
1940 } 2610 }
1941 else 2611 else
1942 ev_timer_stop (EV_A_ w); 2612 ev_timer_stop (EV_A_ w);
1943 } 2613 }
1944 else if (w->repeat) 2614 else if (w->repeat)
1945 { 2615 {
1946 ev_at (w) = w->repeat; 2616 ev_at (w) = w->repeat;
1947 ev_timer_start (EV_A_ w); 2617 ev_timer_start (EV_A_ w);
1948 } 2618 }
2619
2620 EV_FREQUENT_CHECK;
2621}
2622
2623ev_tstamp
2624ev_timer_remaining (EV_P_ ev_timer *w)
2625{
2626 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
1949} 2627}
1950 2628
1951#if EV_PERIODIC_ENABLE 2629#if EV_PERIODIC_ENABLE
1952void noinline 2630void noinline
1953ev_periodic_start (EV_P_ ev_periodic *w) 2631ev_periodic_start (EV_P_ ev_periodic *w)
… …
1957 2635
1958 if (w->reschedule_cb) 2636 if (w->reschedule_cb)
1959 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2637 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1960 else if (w->interval) 2638 else if (w->interval)
1961 { 2639 {
1962 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); 2640 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
1963 /* this formula differs from the one in periodic_reify because we do not always round up */ 2641 /* this formula differs from the one in periodic_reify because we do not always round up */
1964 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2642 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1965 } 2643 }
1966 else 2644 else
1967 ev_at (w) = w->offset; 2645 ev_at (w) = w->offset;
1968 2646
2647 EV_FREQUENT_CHECK;
2648
2649 ++periodiccnt;
1969 ev_start (EV_A_ (W)w, ++periodiccnt); 2650 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
1970 array_needsize (WT, periodics, periodicmax, periodiccnt + 1, EMPTY2); 2651 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2);
1971 periodics [periodiccnt] = (WT)w; 2652 ANHE_w (periodics [ev_active (w)]) = (WT)w;
1972 upheap (periodics, periodiccnt); 2653 ANHE_at_cache (periodics [ev_active (w)]);
2654 upheap (periodics, ev_active (w));
1973 2655
2656 EV_FREQUENT_CHECK;
2657
1974 /*assert (("internal periodic heap corruption", periodics [ev_active (w)] == w));*/ 2658 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
1975} 2659}
1976 2660
1977void noinline 2661void noinline
1978ev_periodic_stop (EV_P_ ev_periodic *w) 2662ev_periodic_stop (EV_P_ ev_periodic *w)
1979{ 2663{
1980 clear_pending (EV_A_ (W)w); 2664 clear_pending (EV_A_ (W)w);
1981 if (expect_false (!ev_is_active (w))) 2665 if (expect_false (!ev_is_active (w)))
1982 return; 2666 return;
1983 2667
2668 EV_FREQUENT_CHECK;
2669
1984 { 2670 {
1985 int active = ev_active (w); 2671 int active = ev_active (w);
1986 2672
1987 assert (("internal periodic heap corruption", periodics [active] == (WT)w)); 2673 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
1988 2674
2675 --periodiccnt;
2676
1989 if (expect_true (active < periodiccnt)) 2677 if (expect_true (active < periodiccnt + HEAP0))
1990 { 2678 {
1991 periodics [active] = periodics [periodiccnt]; 2679 periodics [active] = periodics [periodiccnt + HEAP0];
1992 adjustheap (periodics, periodiccnt, active); 2680 adjustheap (periodics, periodiccnt, active);
1993 } 2681 }
1994
1995 --periodiccnt;
1996 } 2682 }
2683
2684 EV_FREQUENT_CHECK;
1997 2685
1998 ev_stop (EV_A_ (W)w); 2686 ev_stop (EV_A_ (W)w);
1999} 2687}
2000 2688
2001void noinline 2689void noinline
… …
2012#endif 2700#endif
2013 2701
2014void noinline 2702void noinline
2015ev_signal_start (EV_P_ ev_signal *w) 2703ev_signal_start (EV_P_ ev_signal *w)
2016{ 2704{
2017#if EV_MULTIPLICITY
2018 assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2019#endif
2020 if (expect_false (ev_is_active (w))) 2705 if (expect_false (ev_is_active (w)))
2021 return; 2706 return;
2022 2707
2023 assert (("ev_signal_start called with illegal signal number", w->signum > 0)); 2708 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
2024 2709
2025 evpipe_init (EV_A); 2710#if EV_MULTIPLICITY
2711 assert (("libev: a signal must not be attached to two different loops",
2712 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
2026 2713
2714 signals [w->signum - 1].loop = EV_A;
2715#endif
2716
2717 EV_FREQUENT_CHECK;
2718
2719#if EV_USE_SIGNALFD
2720 if (sigfd == -2)
2027 { 2721 {
2028#ifndef _WIN32 2722 sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC);
2029 sigset_t full, prev; 2723 if (sigfd < 0 && errno == EINVAL)
2030 sigfillset (&full); 2724 sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */
2031 sigprocmask (SIG_SETMASK, &full, &prev);
2032#endif
2033 2725
2034 array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); 2726 if (sigfd >= 0)
2727 {
2728 fd_intern (sigfd); /* doing it twice will not hurt */
2035 2729
2036#ifndef _WIN32 2730 sigemptyset (&sigfd_set);
2037 sigprocmask (SIG_SETMASK, &prev, 0); 2731
2038#endif 2732 ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ);
2733 ev_set_priority (&sigfd_w, EV_MAXPRI);
2734 ev_io_start (EV_A_ &sigfd_w);
2735 ev_unref (EV_A); /* signalfd watcher should not keep loop alive */
2736 }
2039 } 2737 }
2738
2739 if (sigfd >= 0)
2740 {
2741 /* TODO: check .head */
2742 sigaddset (&sigfd_set, w->signum);
2743 sigprocmask (SIG_BLOCK, &sigfd_set, 0);
2744
2745 signalfd (sigfd, &sigfd_set, 0);
2746 }
2747#endif
2040 2748
2041 ev_start (EV_A_ (W)w, 1); 2749 ev_start (EV_A_ (W)w, 1);
2042 wlist_add (&signals [w->signum - 1].head, (WL)w); 2750 wlist_add (&signals [w->signum - 1].head, (WL)w);
2043 2751
2044 if (!((WL)w)->next) 2752 if (!((WL)w)->next)
2753# if EV_USE_SIGNALFD
2754 if (sigfd < 0) /*TODO*/
2755# endif
2045 { 2756 {
2046#if _WIN32 2757# if _WIN32
2047 signal (w->signum, ev_sighandler); 2758 signal (w->signum, ev_sighandler);
2048#else 2759# else
2049 struct sigaction sa; 2760 struct sigaction sa;
2761
2762 evpipe_init (EV_A);
2763
2050 sa.sa_handler = ev_sighandler; 2764 sa.sa_handler = ev_sighandler;
2051 sigfillset (&sa.sa_mask); 2765 sigfillset (&sa.sa_mask);
2052 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 2766 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2053 sigaction (w->signum, &sa, 0); 2767 sigaction (w->signum, &sa, 0);
2768
2769 sigemptyset (&sa.sa_mask);
2770 sigaddset (&sa.sa_mask, w->signum);
2771 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
2054#endif 2772#endif
2055 } 2773 }
2774
2775 EV_FREQUENT_CHECK;
2056} 2776}
2057 2777
2058void noinline 2778void noinline
2059ev_signal_stop (EV_P_ ev_signal *w) 2779ev_signal_stop (EV_P_ ev_signal *w)
2060{ 2780{
2061 clear_pending (EV_A_ (W)w); 2781 clear_pending (EV_A_ (W)w);
2062 if (expect_false (!ev_is_active (w))) 2782 if (expect_false (!ev_is_active (w)))
2063 return; 2783 return;
2064 2784
2785 EV_FREQUENT_CHECK;
2786
2065 wlist_del (&signals [w->signum - 1].head, (WL)w); 2787 wlist_del (&signals [w->signum - 1].head, (WL)w);
2066 ev_stop (EV_A_ (W)w); 2788 ev_stop (EV_A_ (W)w);
2067 2789
2068 if (!signals [w->signum - 1].head) 2790 if (!signals [w->signum - 1].head)
2791 {
2792#if EV_MULTIPLICITY
2793 signals [w->signum - 1].loop = 0; /* unattach from signal */
2794#endif
2795#if EV_USE_SIGNALFD
2796 if (sigfd >= 0)
2797 {
2798 sigprocmask (SIG_UNBLOCK, &sigfd_set, 0);//D
2799 sigdelset (&sigfd_set, w->signum);
2800 signalfd (sigfd, &sigfd_set, 0);
2801 sigprocmask (SIG_BLOCK, &sigfd_set, 0);//D
2802 /*TODO: maybe unblock signal? */
2803 }
2804 else
2805#endif
2069 signal (w->signum, SIG_DFL); 2806 signal (w->signum, SIG_DFL);
2807 }
2808
2809 EV_FREQUENT_CHECK;
2070} 2810}
2071 2811
2072void 2812void
2073ev_child_start (EV_P_ ev_child *w) 2813ev_child_start (EV_P_ ev_child *w)
2074{ 2814{
2075#if EV_MULTIPLICITY 2815#if EV_MULTIPLICITY
2076 assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 2816 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2077#endif 2817#endif
2078 if (expect_false (ev_is_active (w))) 2818 if (expect_false (ev_is_active (w)))
2079 return; 2819 return;
2080 2820
2821 EV_FREQUENT_CHECK;
2822
2081 ev_start (EV_A_ (W)w, 1); 2823 ev_start (EV_A_ (W)w, 1);
2082 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 2824 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
2825
2826 EV_FREQUENT_CHECK;
2083} 2827}
2084 2828
2085void 2829void
2086ev_child_stop (EV_P_ ev_child *w) 2830ev_child_stop (EV_P_ ev_child *w)
2087{ 2831{
2088 clear_pending (EV_A_ (W)w); 2832 clear_pending (EV_A_ (W)w);
2089 if (expect_false (!ev_is_active (w))) 2833 if (expect_false (!ev_is_active (w)))
2090 return; 2834 return;
2091 2835
2836 EV_FREQUENT_CHECK;
2837
2092 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 2838 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
2093 ev_stop (EV_A_ (W)w); 2839 ev_stop (EV_A_ (W)w);
2840
2841 EV_FREQUENT_CHECK;
2094} 2842}
2095 2843
2096#if EV_STAT_ENABLE 2844#if EV_STAT_ENABLE
2097 2845
2098# ifdef _WIN32 2846# ifdef _WIN32
2099# undef lstat 2847# undef lstat
2100# define lstat(a,b) _stati64 (a,b) 2848# define lstat(a,b) _stati64 (a,b)
2101# endif 2849# endif
2102 2850
2103#define DEF_STAT_INTERVAL 5.0074891 2851#define DEF_STAT_INTERVAL 5.0074891
2852#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
2104#define MIN_STAT_INTERVAL 0.1074891 2853#define MIN_STAT_INTERVAL 0.1074891
2105 2854
2106static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 2855static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2107 2856
2108#if EV_USE_INOTIFY 2857#if EV_USE_INOTIFY
2109# define EV_INOTIFY_BUFSIZE 8192 2858# define EV_INOTIFY_BUFSIZE 8192
… …
2113{ 2862{
2114 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); 2863 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);
2115 2864
2116 if (w->wd < 0) 2865 if (w->wd < 0)
2117 { 2866 {
2867 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2118 ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ 2868 ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2119 2869
2120 /* monitor some parent directory for speedup hints */ 2870 /* monitor some parent directory for speedup hints */
2121 /* note that exceeding the hardcoded limit is not a correctness issue, */ 2871 /* note that exceeding the hardcoded path limit is not a correctness issue, */
2122 /* but an efficiency issue only */ 2872 /* but an efficiency issue only */
2123 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) 2873 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2124 { 2874 {
2125 char path [4096]; 2875 char path [4096];
2126 strcpy (path, w->path); 2876 strcpy (path, w->path);
… …
2130 int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF 2880 int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF
2131 | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); 2881 | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);
2132 2882
2133 char *pend = strrchr (path, '/'); 2883 char *pend = strrchr (path, '/');
2134 2884
2135 if (!pend) 2885 if (!pend || pend == path)
2136 break; /* whoops, no '/', complain to your admin */ 2886 break;
2137 2887
2138 *pend = 0; 2888 *pend = 0;
2139 w->wd = inotify_add_watch (fs_fd, path, mask); 2889 w->wd = inotify_add_watch (fs_fd, path, mask);
2140 } 2890 }
2141 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 2891 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2142 } 2892 }
2143 } 2893 }
2144 else
2145 ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */
2146 2894
2147 if (w->wd >= 0) 2895 if (w->wd >= 0)
2896 {
2897 struct statfs sfs;
2898
2148 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 2899 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
2900
2901 /* now local changes will be tracked by inotify, but remote changes won't */
2902 /* unless the filesystem it known to be local, we therefore still poll */
2903 /* also do poll on <2.6.25, but with normal frequency */
2904
2905 if (fs_2625 && !statfs (w->path, &sfs))
2906 if (sfs.f_type == 0x1373 /* devfs */
2907 || sfs.f_type == 0xEF53 /* ext2/3 */
2908 || sfs.f_type == 0x3153464a /* jfs */
2909 || sfs.f_type == 0x52654973 /* reiser3 */
2910 || sfs.f_type == 0x01021994 /* tempfs */
2911 || sfs.f_type == 0x58465342 /* xfs */)
2912 return;
2913
2914 w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
2915 ev_timer_again (EV_A_ &w->timer);
2916 }
2149} 2917}
2150 2918
2151static void noinline 2919static void noinline
2152infy_del (EV_P_ ev_stat *w) 2920infy_del (EV_P_ ev_stat *w)
2153{ 2921{
… …
2167 2935
2168static void noinline 2936static void noinline
2169infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 2937infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2170{ 2938{
2171 if (slot < 0) 2939 if (slot < 0)
2172 /* overflow, need to check for all hahs slots */ 2940 /* overflow, need to check for all hash slots */
2173 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 2941 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
2174 infy_wd (EV_A_ slot, wd, ev); 2942 infy_wd (EV_A_ slot, wd, ev);
2175 else 2943 else
2176 { 2944 {
2177 WL w_; 2945 WL w_;
… …
2183 2951
2184 if (w->wd == wd || wd == -1) 2952 if (w->wd == wd || wd == -1)
2185 { 2953 {
2186 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 2954 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2187 { 2955 {
2956 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
2188 w->wd = -1; 2957 w->wd = -1;
2189 infy_add (EV_A_ w); /* re-add, no matter what */ 2958 infy_add (EV_A_ w); /* re-add, no matter what */
2190 } 2959 }
2191 2960
2192 stat_timer_cb (EV_A_ &w->timer, 0); 2961 stat_timer_cb (EV_A_ &w->timer, 0);
… …
2205 2974
2206 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) 2975 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)
2207 infy_wd (EV_A_ ev->wd, ev->wd, ev); 2976 infy_wd (EV_A_ ev->wd, ev->wd, ev);
2208} 2977}
2209 2978
2210void inline_size 2979inline_size void
2980check_2625 (EV_P)
2981{
2982 /* kernels < 2.6.25 are borked
2983 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2984 */
2985 struct utsname buf;
2986 int major, minor, micro;
2987
2988 if (uname (&buf))
2989 return;
2990
2991 if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
2992 return;
2993
2994 if (major < 2
2995 || (major == 2 && minor < 6)
2996 || (major == 2 && minor == 6 && micro < 25))
2997 return;
2998
2999 fs_2625 = 1;
3000}
3001
3002inline_size void
2211infy_init (EV_P) 3003infy_init (EV_P)
2212{ 3004{
2213 if (fs_fd != -2) 3005 if (fs_fd != -2)
2214 return; 3006 return;
3007
3008 fs_fd = -1;
3009
3010 check_2625 (EV_A);
2215 3011
2216 fs_fd = inotify_init (); 3012 fs_fd = inotify_init ();
2217 3013
2218 if (fs_fd >= 0) 3014 if (fs_fd >= 0)
2219 { 3015 {
… …
2221 ev_set_priority (&fs_w, EV_MAXPRI); 3017 ev_set_priority (&fs_w, EV_MAXPRI);
2222 ev_io_start (EV_A_ &fs_w); 3018 ev_io_start (EV_A_ &fs_w);
2223 } 3019 }
2224} 3020}
2225 3021
2226void inline_size 3022inline_size void
2227infy_fork (EV_P) 3023infy_fork (EV_P)
2228{ 3024{
2229 int slot; 3025 int slot;
2230 3026
2231 if (fs_fd < 0) 3027 if (fs_fd < 0)
… …
2247 w->wd = -1; 3043 w->wd = -1;
2248 3044
2249 if (fs_fd >= 0) 3045 if (fs_fd >= 0)
2250 infy_add (EV_A_ w); /* re-add, no matter what */ 3046 infy_add (EV_A_ w); /* re-add, no matter what */
2251 else 3047 else
2252 ev_timer_start (EV_A_ &w->timer); 3048 ev_timer_again (EV_A_ &w->timer);
2253 } 3049 }
2254
2255 } 3050 }
2256} 3051}
2257 3052
3053#endif
3054
3055#ifdef _WIN32
3056# define EV_LSTAT(p,b) _stati64 (p, b)
3057#else
3058# define EV_LSTAT(p,b) lstat (p, b)
2258#endif 3059#endif
2259 3060
2260void 3061void
2261ev_stat_stat (EV_P_ ev_stat *w) 3062ev_stat_stat (EV_P_ ev_stat *w)
2262{ 3063{
… …
2289 || w->prev.st_atime != w->attr.st_atime 3090 || w->prev.st_atime != w->attr.st_atime
2290 || w->prev.st_mtime != w->attr.st_mtime 3091 || w->prev.st_mtime != w->attr.st_mtime
2291 || w->prev.st_ctime != w->attr.st_ctime 3092 || w->prev.st_ctime != w->attr.st_ctime
2292 ) { 3093 ) {
2293 #if EV_USE_INOTIFY 3094 #if EV_USE_INOTIFY
3095 if (fs_fd >= 0)
3096 {
2294 infy_del (EV_A_ w); 3097 infy_del (EV_A_ w);
2295 infy_add (EV_A_ w); 3098 infy_add (EV_A_ w);
2296 ev_stat_stat (EV_A_ w); /* avoid race... */ 3099 ev_stat_stat (EV_A_ w); /* avoid race... */
3100 }
2297 #endif 3101 #endif
2298 3102
2299 ev_feed_event (EV_A_ w, EV_STAT); 3103 ev_feed_event (EV_A_ w, EV_STAT);
2300 } 3104 }
2301} 3105}
… …
2304ev_stat_start (EV_P_ ev_stat *w) 3108ev_stat_start (EV_P_ ev_stat *w)
2305{ 3109{
2306 if (expect_false (ev_is_active (w))) 3110 if (expect_false (ev_is_active (w)))
2307 return; 3111 return;
2308 3112
2309 /* since we use memcmp, we need to clear any padding data etc. */
2310 memset (&w->prev, 0, sizeof (ev_statdata));
2311 memset (&w->attr, 0, sizeof (ev_statdata));
2312
2313 ev_stat_stat (EV_A_ w); 3113 ev_stat_stat (EV_A_ w);
2314 3114
3115 if (w->interval < MIN_STAT_INTERVAL && w->interval)
2315 if (w->interval < MIN_STAT_INTERVAL) 3116 w->interval = MIN_STAT_INTERVAL;
2316 w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
2317 3117
2318 ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); 3118 ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL);
2319 ev_set_priority (&w->timer, ev_priority (w)); 3119 ev_set_priority (&w->timer, ev_priority (w));
2320 3120
2321#if EV_USE_INOTIFY 3121#if EV_USE_INOTIFY
2322 infy_init (EV_A); 3122 infy_init (EV_A);
2323 3123
2324 if (fs_fd >= 0) 3124 if (fs_fd >= 0)
2325 infy_add (EV_A_ w); 3125 infy_add (EV_A_ w);
2326 else 3126 else
2327#endif 3127#endif
2328 ev_timer_start (EV_A_ &w->timer); 3128 ev_timer_again (EV_A_ &w->timer);
2329 3129
2330 ev_start (EV_A_ (W)w, 1); 3130 ev_start (EV_A_ (W)w, 1);
3131
3132 EV_FREQUENT_CHECK;
2331} 3133}
2332 3134
2333void 3135void
2334ev_stat_stop (EV_P_ ev_stat *w) 3136ev_stat_stop (EV_P_ ev_stat *w)
2335{ 3137{
2336 clear_pending (EV_A_ (W)w); 3138 clear_pending (EV_A_ (W)w);
2337 if (expect_false (!ev_is_active (w))) 3139 if (expect_false (!ev_is_active (w)))
2338 return; 3140 return;
2339 3141
3142 EV_FREQUENT_CHECK;
3143
2340#if EV_USE_INOTIFY 3144#if EV_USE_INOTIFY
2341 infy_del (EV_A_ w); 3145 infy_del (EV_A_ w);
2342#endif 3146#endif
2343 ev_timer_stop (EV_A_ &w->timer); 3147 ev_timer_stop (EV_A_ &w->timer);
2344 3148
2345 ev_stop (EV_A_ (W)w); 3149 ev_stop (EV_A_ (W)w);
3150
3151 EV_FREQUENT_CHECK;
2346} 3152}
2347#endif 3153#endif
2348 3154
2349#if EV_IDLE_ENABLE 3155#if EV_IDLE_ENABLE
2350void 3156void
… …
2352{ 3158{
2353 if (expect_false (ev_is_active (w))) 3159 if (expect_false (ev_is_active (w)))
2354 return; 3160 return;
2355 3161
2356 pri_adjust (EV_A_ (W)w); 3162 pri_adjust (EV_A_ (W)w);
3163
3164 EV_FREQUENT_CHECK;
2357 3165
2358 { 3166 {
2359 int active = ++idlecnt [ABSPRI (w)]; 3167 int active = ++idlecnt [ABSPRI (w)];
2360 3168
2361 ++idleall; 3169 ++idleall;
2362 ev_start (EV_A_ (W)w, active); 3170 ev_start (EV_A_ (W)w, active);
2363 3171
2364 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); 3172 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);
2365 idles [ABSPRI (w)][active - 1] = w; 3173 idles [ABSPRI (w)][active - 1] = w;
2366 } 3174 }
3175
3176 EV_FREQUENT_CHECK;
2367} 3177}
2368 3178
2369void 3179void
2370ev_idle_stop (EV_P_ ev_idle *w) 3180ev_idle_stop (EV_P_ ev_idle *w)
2371{ 3181{
2372 clear_pending (EV_A_ (W)w); 3182 clear_pending (EV_A_ (W)w);
2373 if (expect_false (!ev_is_active (w))) 3183 if (expect_false (!ev_is_active (w)))
2374 return; 3184 return;
2375 3185
3186 EV_FREQUENT_CHECK;
3187
2376 { 3188 {
2377 int active = ev_active (w); 3189 int active = ev_active (w);
2378 3190
2379 idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; 3191 idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
2380 ev_active (idles [ABSPRI (w)][active - 1]) = active; 3192 ev_active (idles [ABSPRI (w)][active - 1]) = active;
2381 3193
2382 ev_stop (EV_A_ (W)w); 3194 ev_stop (EV_A_ (W)w);
2383 --idleall; 3195 --idleall;
2384 } 3196 }
3197
3198 EV_FREQUENT_CHECK;
2385} 3199}
2386#endif 3200#endif
2387 3201
2388void 3202void
2389ev_prepare_start (EV_P_ ev_prepare *w) 3203ev_prepare_start (EV_P_ ev_prepare *w)
2390{ 3204{
2391 if (expect_false (ev_is_active (w))) 3205 if (expect_false (ev_is_active (w)))
2392 return; 3206 return;
3207
3208 EV_FREQUENT_CHECK;
2393 3209
2394 ev_start (EV_A_ (W)w, ++preparecnt); 3210 ev_start (EV_A_ (W)w, ++preparecnt);
2395 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); 3211 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
2396 prepares [preparecnt - 1] = w; 3212 prepares [preparecnt - 1] = w;
3213
3214 EV_FREQUENT_CHECK;
2397} 3215}
2398 3216
2399void 3217void
2400ev_prepare_stop (EV_P_ ev_prepare *w) 3218ev_prepare_stop (EV_P_ ev_prepare *w)
2401{ 3219{
2402 clear_pending (EV_A_ (W)w); 3220 clear_pending (EV_A_ (W)w);
2403 if (expect_false (!ev_is_active (w))) 3221 if (expect_false (!ev_is_active (w)))
2404 return; 3222 return;
2405 3223
3224 EV_FREQUENT_CHECK;
3225
2406 { 3226 {
2407 int active = ev_active (w); 3227 int active = ev_active (w);
2408 3228
2409 prepares [active - 1] = prepares [--preparecnt]; 3229 prepares [active - 1] = prepares [--preparecnt];
2410 ev_active (prepares [active - 1]) = active; 3230 ev_active (prepares [active - 1]) = active;
2411 } 3231 }
2412 3232
2413 ev_stop (EV_A_ (W)w); 3233 ev_stop (EV_A_ (W)w);
3234
3235 EV_FREQUENT_CHECK;
2414} 3236}
2415 3237
2416void 3238void
2417ev_check_start (EV_P_ ev_check *w) 3239ev_check_start (EV_P_ ev_check *w)
2418{ 3240{
2419 if (expect_false (ev_is_active (w))) 3241 if (expect_false (ev_is_active (w)))
2420 return; 3242 return;
3243
3244 EV_FREQUENT_CHECK;
2421 3245
2422 ev_start (EV_A_ (W)w, ++checkcnt); 3246 ev_start (EV_A_ (W)w, ++checkcnt);
2423 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); 3247 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
2424 checks [checkcnt - 1] = w; 3248 checks [checkcnt - 1] = w;
3249
3250 EV_FREQUENT_CHECK;
2425} 3251}
2426 3252
2427void 3253void
2428ev_check_stop (EV_P_ ev_check *w) 3254ev_check_stop (EV_P_ ev_check *w)
2429{ 3255{
2430 clear_pending (EV_A_ (W)w); 3256 clear_pending (EV_A_ (W)w);
2431 if (expect_false (!ev_is_active (w))) 3257 if (expect_false (!ev_is_active (w)))
2432 return; 3258 return;
2433 3259
3260 EV_FREQUENT_CHECK;
3261
2434 { 3262 {
2435 int active = ev_active (w); 3263 int active = ev_active (w);
2436 3264
2437 checks [active - 1] = checks [--checkcnt]; 3265 checks [active - 1] = checks [--checkcnt];
2438 ev_active (checks [active - 1]) = active; 3266 ev_active (checks [active - 1]) = active;
2439 } 3267 }
2440 3268
2441 ev_stop (EV_A_ (W)w); 3269 ev_stop (EV_A_ (W)w);
3270
3271 EV_FREQUENT_CHECK;
2442} 3272}
2443 3273
2444#if EV_EMBED_ENABLE 3274#if EV_EMBED_ENABLE
2445void noinline 3275void noinline
2446ev_embed_sweep (EV_P_ ev_embed *w) 3276ev_embed_sweep (EV_P_ ev_embed *w)
… …
2463embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 3293embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
2464{ 3294{
2465 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); 3295 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
2466 3296
2467 { 3297 {
2468 struct ev_loop *loop = w->other; 3298 EV_P = w->other;
2469 3299
2470 while (fdchangecnt) 3300 while (fdchangecnt)
2471 { 3301 {
2472 fd_reify (EV_A); 3302 fd_reify (EV_A);
2473 ev_loop (EV_A_ EVLOOP_NONBLOCK); 3303 ev_loop (EV_A_ EVLOOP_NONBLOCK);
2474 } 3304 }
2475 } 3305 }
2476} 3306}
2477 3307
3308static void
3309embed_fork_cb (EV_P_ ev_fork *fork_w, int revents)
3310{
3311 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
3312
3313 ev_embed_stop (EV_A_ w);
3314
3315 {
3316 EV_P = w->other;
3317
3318 ev_loop_fork (EV_A);
3319 ev_loop (EV_A_ EVLOOP_NONBLOCK);
3320 }
3321
3322 ev_embed_start (EV_A_ w);
3323}
3324
2478#if 0 3325#if 0
2479static void 3326static void
2480embed_idle_cb (EV_P_ ev_idle *idle, int revents) 3327embed_idle_cb (EV_P_ ev_idle *idle, int revents)
2481{ 3328{
2482 ev_idle_stop (EV_A_ idle); 3329 ev_idle_stop (EV_A_ idle);
… …
2488{ 3335{
2489 if (expect_false (ev_is_active (w))) 3336 if (expect_false (ev_is_active (w)))
2490 return; 3337 return;
2491 3338
2492 { 3339 {
2493 struct ev_loop *loop = w->other; 3340 EV_P = w->other;
2494 assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 3341 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2495 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); 3342 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2496 } 3343 }
3344
3345 EV_FREQUENT_CHECK;
2497 3346
2498 ev_set_priority (&w->io, ev_priority (w)); 3347 ev_set_priority (&w->io, ev_priority (w));
2499 ev_io_start (EV_A_ &w->io); 3348 ev_io_start (EV_A_ &w->io);
2500 3349
2501 ev_prepare_init (&w->prepare, embed_prepare_cb); 3350 ev_prepare_init (&w->prepare, embed_prepare_cb);
2502 ev_set_priority (&w->prepare, EV_MINPRI); 3351 ev_set_priority (&w->prepare, EV_MINPRI);
2503 ev_prepare_start (EV_A_ &w->prepare); 3352 ev_prepare_start (EV_A_ &w->prepare);
2504 3353
3354 ev_fork_init (&w->fork, embed_fork_cb);
3355 ev_fork_start (EV_A_ &w->fork);
3356
2505 /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ 3357 /*ev_idle_init (&w->idle, e,bed_idle_cb);*/
2506 3358
2507 ev_start (EV_A_ (W)w, 1); 3359 ev_start (EV_A_ (W)w, 1);
3360
3361 EV_FREQUENT_CHECK;
2508} 3362}
2509 3363
2510void 3364void
2511ev_embed_stop (EV_P_ ev_embed *w) 3365ev_embed_stop (EV_P_ ev_embed *w)
2512{ 3366{
2513 clear_pending (EV_A_ (W)w); 3367 clear_pending (EV_A_ (W)w);
2514 if (expect_false (!ev_is_active (w))) 3368 if (expect_false (!ev_is_active (w)))
2515 return; 3369 return;
2516 3370
3371 EV_FREQUENT_CHECK;
3372
2517 ev_io_stop (EV_A_ &w->io); 3373 ev_io_stop (EV_A_ &w->io);
2518 ev_prepare_stop (EV_A_ &w->prepare); 3374 ev_prepare_stop (EV_A_ &w->prepare);
3375 ev_fork_stop (EV_A_ &w->fork);
2519 3376
2520 ev_stop (EV_A_ (W)w); 3377 EV_FREQUENT_CHECK;
2521} 3378}
2522#endif 3379#endif
2523 3380
2524#if EV_FORK_ENABLE 3381#if EV_FORK_ENABLE
2525void 3382void
2526ev_fork_start (EV_P_ ev_fork *w) 3383ev_fork_start (EV_P_ ev_fork *w)
2527{ 3384{
2528 if (expect_false (ev_is_active (w))) 3385 if (expect_false (ev_is_active (w)))
2529 return; 3386 return;
3387
3388 EV_FREQUENT_CHECK;
2530 3389
2531 ev_start (EV_A_ (W)w, ++forkcnt); 3390 ev_start (EV_A_ (W)w, ++forkcnt);
2532 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); 3391 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);
2533 forks [forkcnt - 1] = w; 3392 forks [forkcnt - 1] = w;
3393
3394 EV_FREQUENT_CHECK;
2534} 3395}
2535 3396
2536void 3397void
2537ev_fork_stop (EV_P_ ev_fork *w) 3398ev_fork_stop (EV_P_ ev_fork *w)
2538{ 3399{
2539 clear_pending (EV_A_ (W)w); 3400 clear_pending (EV_A_ (W)w);
2540 if (expect_false (!ev_is_active (w))) 3401 if (expect_false (!ev_is_active (w)))
2541 return; 3402 return;
2542 3403
3404 EV_FREQUENT_CHECK;
3405
2543 { 3406 {
2544 int active = ev_active (w); 3407 int active = ev_active (w);
2545 3408
2546 forks [active - 1] = forks [--forkcnt]; 3409 forks [active - 1] = forks [--forkcnt];
2547 ev_active (forks [active - 1]) = active; 3410 ev_active (forks [active - 1]) = active;
2548 } 3411 }
2549 3412
2550 ev_stop (EV_A_ (W)w); 3413 ev_stop (EV_A_ (W)w);
3414
3415 EV_FREQUENT_CHECK;
2551} 3416}
2552#endif 3417#endif
2553 3418
2554#if EV_ASYNC_ENABLE 3419#if EV_ASYNC_ENABLE
2555void 3420void
… …
2557{ 3422{
2558 if (expect_false (ev_is_active (w))) 3423 if (expect_false (ev_is_active (w)))
2559 return; 3424 return;
2560 3425
2561 evpipe_init (EV_A); 3426 evpipe_init (EV_A);
3427
3428 EV_FREQUENT_CHECK;
2562 3429
2563 ev_start (EV_A_ (W)w, ++asynccnt); 3430 ev_start (EV_A_ (W)w, ++asynccnt);
2564 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); 3431 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2);
2565 asyncs [asynccnt - 1] = w; 3432 asyncs [asynccnt - 1] = w;
3433
3434 EV_FREQUENT_CHECK;
2566} 3435}
2567 3436
2568void 3437void
2569ev_async_stop (EV_P_ ev_async *w) 3438ev_async_stop (EV_P_ ev_async *w)
2570{ 3439{
2571 clear_pending (EV_A_ (W)w); 3440 clear_pending (EV_A_ (W)w);
2572 if (expect_false (!ev_is_active (w))) 3441 if (expect_false (!ev_is_active (w)))
2573 return; 3442 return;
2574 3443
3444 EV_FREQUENT_CHECK;
3445
2575 { 3446 {
2576 int active = ev_active (w); 3447 int active = ev_active (w);
2577 3448
2578 asyncs [active - 1] = asyncs [--asynccnt]; 3449 asyncs [active - 1] = asyncs [--asynccnt];
2579 ev_active (asyncs [active - 1]) = active; 3450 ev_active (asyncs [active - 1]) = active;
2580 } 3451 }
2581 3452
2582 ev_stop (EV_A_ (W)w); 3453 ev_stop (EV_A_ (W)w);
3454
3455 EV_FREQUENT_CHECK;
2583} 3456}
2584 3457
2585void 3458void
2586ev_async_send (EV_P_ ev_async *w) 3459ev_async_send (EV_P_ ev_async *w)
2587{ 3460{
2588 w->sent = 1; 3461 w->sent = 1;
2589 evpipe_write (EV_A_ &gotasync); 3462 evpipe_write (EV_A_ &async_pending);
2590} 3463}
2591#endif 3464#endif
2592 3465
2593/*****************************************************************************/ 3466/*****************************************************************************/
2594 3467
… …
2604once_cb (EV_P_ struct ev_once *once, int revents) 3477once_cb (EV_P_ struct ev_once *once, int revents)
2605{ 3478{
2606 void (*cb)(int revents, void *arg) = once->cb; 3479 void (*cb)(int revents, void *arg) = once->cb;
2607 void *arg = once->arg; 3480 void *arg = once->arg;
2608 3481
2609 ev_io_stop (EV_A_ &once->io); 3482 ev_io_stop (EV_A_ &once->io);
2610 ev_timer_stop (EV_A_ &once->to); 3483 ev_timer_stop (EV_A_ &once->to);
2611 ev_free (once); 3484 ev_free (once);
2612 3485
2613 cb (revents, arg); 3486 cb (revents, arg);
2614} 3487}
2615 3488
2616static void 3489static void
2617once_cb_io (EV_P_ ev_io *w, int revents) 3490once_cb_io (EV_P_ ev_io *w, int revents)
2618{ 3491{
2619 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); 3492 struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io));
3493
3494 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to));
2620} 3495}
2621 3496
2622static void 3497static void
2623once_cb_to (EV_P_ ev_timer *w, int revents) 3498once_cb_to (EV_P_ ev_timer *w, int revents)
2624{ 3499{
2625 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); 3500 struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to));
3501
3502 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
2626} 3503}
2627 3504
2628void 3505void
2629ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 3506ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)
2630{ 3507{
… …
2652 ev_timer_set (&once->to, timeout, 0.); 3529 ev_timer_set (&once->to, timeout, 0.);
2653 ev_timer_start (EV_A_ &once->to); 3530 ev_timer_start (EV_A_ &once->to);
2654 } 3531 }
2655} 3532}
2656 3533
3534/*****************************************************************************/
3535
3536#if EV_WALK_ENABLE
3537void
3538ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))
3539{
3540 int i, j;
3541 ev_watcher_list *wl, *wn;
3542
3543 if (types & (EV_IO | EV_EMBED))
3544 for (i = 0; i < anfdmax; ++i)
3545 for (wl = anfds [i].head; wl; )
3546 {
3547 wn = wl->next;
3548
3549#if EV_EMBED_ENABLE
3550 if (ev_cb ((ev_io *)wl) == embed_io_cb)
3551 {
3552 if (types & EV_EMBED)
3553 cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io));
3554 }
3555 else
3556#endif
3557#if EV_USE_INOTIFY
3558 if (ev_cb ((ev_io *)wl) == infy_cb)
3559 ;
3560 else
3561#endif
3562 if ((ev_io *)wl != &pipe_w)
3563 if (types & EV_IO)
3564 cb (EV_A_ EV_IO, wl);
3565
3566 wl = wn;
3567 }
3568
3569 if (types & (EV_TIMER | EV_STAT))
3570 for (i = timercnt + HEAP0; i-- > HEAP0; )
3571#if EV_STAT_ENABLE
3572 /*TODO: timer is not always active*/
3573 if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb)
3574 {
3575 if (types & EV_STAT)
3576 cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer));
3577 }
3578 else
3579#endif
3580 if (types & EV_TIMER)
3581 cb (EV_A_ EV_TIMER, ANHE_w (timers [i]));
3582
3583#if EV_PERIODIC_ENABLE
3584 if (types & EV_PERIODIC)
3585 for (i = periodiccnt + HEAP0; i-- > HEAP0; )
3586 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3587#endif
3588
3589#if EV_IDLE_ENABLE
3590 if (types & EV_IDLE)
3591 for (j = NUMPRI; i--; )
3592 for (i = idlecnt [j]; i--; )
3593 cb (EV_A_ EV_IDLE, idles [j][i]);
3594#endif
3595
3596#if EV_FORK_ENABLE
3597 if (types & EV_FORK)
3598 for (i = forkcnt; i--; )
3599 if (ev_cb (forks [i]) != embed_fork_cb)
3600 cb (EV_A_ EV_FORK, forks [i]);
3601#endif
3602
3603#if EV_ASYNC_ENABLE
3604 if (types & EV_ASYNC)
3605 for (i = asynccnt; i--; )
3606 cb (EV_A_ EV_ASYNC, asyncs [i]);
3607#endif
3608
3609 if (types & EV_PREPARE)
3610 for (i = preparecnt; i--; )
3611#if EV_EMBED_ENABLE
3612 if (ev_cb (prepares [i]) != embed_prepare_cb)
3613#endif
3614 cb (EV_A_ EV_PREPARE, prepares [i]);
3615
3616 if (types & EV_CHECK)
3617 for (i = checkcnt; i--; )
3618 cb (EV_A_ EV_CHECK, checks [i]);
3619
3620 if (types & EV_SIGNAL)
3621 for (i = 0; i < EV_NSIG - 1; ++i)
3622 for (wl = signals [i].head; wl; )
3623 {
3624 wn = wl->next;
3625 cb (EV_A_ EV_SIGNAL, wl);
3626 wl = wn;
3627 }
3628
3629 if (types & EV_CHILD)
3630 for (i = EV_PID_HASHSIZE; i--; )
3631 for (wl = childs [i]; wl; )
3632 {
3633 wn = wl->next;
3634 cb (EV_A_ EV_CHILD, wl);
3635 wl = wn;
3636 }
3637/* EV_STAT 0x00001000 /* stat data changed */
3638/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3639}
3640#endif
3641
2657#if EV_MULTIPLICITY 3642#if EV_MULTIPLICITY
2658 #include "ev_wrap.h" 3643 #include "ev_wrap.h"
2659#endif 3644#endif
2660 3645
2661#ifdef __cplusplus 3646#ifdef __cplusplus

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