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Comparing libev/ev.c (file contents):
Revision 1.228 by root, Fri May 2 08:07:37 2008 UTC vs.
Revision 1.313 by root, Wed Aug 19 23:44:51 2009 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
… …
47# include EV_CONFIG_H 47# include EV_CONFIG_H
48# else 48# else
49# include "config.h" 49# include "config.h"
50# endif 50# endif
51 51
52# if HAVE_CLOCK_SYSCALL
53# ifndef EV_USE_CLOCK_SYSCALL
54# define EV_USE_CLOCK_SYSCALL 1
55# ifndef EV_USE_REALTIME
56# define EV_USE_REALTIME 0
57# endif
58# ifndef EV_USE_MONOTONIC
59# define EV_USE_MONOTONIC 1
60# endif
61# endif
62# elif !defined(EV_USE_CLOCK_SYSCALL)
63# define EV_USE_CLOCK_SYSCALL 0
64# endif
65
52# if HAVE_CLOCK_GETTIME 66# if HAVE_CLOCK_GETTIME
53# ifndef EV_USE_MONOTONIC 67# ifndef EV_USE_MONOTONIC
54# define EV_USE_MONOTONIC 1 68# define EV_USE_MONOTONIC 1
55# endif 69# endif
56# ifndef EV_USE_REALTIME 70# ifndef EV_USE_REALTIME
57# define EV_USE_REALTIME 1 71# define EV_USE_REALTIME 0
58# endif 72# endif
59# else 73# else
60# ifndef EV_USE_MONOTONIC 74# ifndef EV_USE_MONOTONIC
61# define EV_USE_MONOTONIC 0 75# define EV_USE_MONOTONIC 0
62# endif 76# endif
… …
119# else 133# else
120# define EV_USE_INOTIFY 0 134# define EV_USE_INOTIFY 0
121# endif 135# endif
122# endif 136# endif
123 137
138# ifndef EV_USE_SIGNALFD
139# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H
140# define EV_USE_SIGNALFD 1
141# else
142# define EV_USE_SIGNALFD 0
143# endif
144# endif
145
124# ifndef EV_USE_EVENTFD 146# ifndef EV_USE_EVENTFD
125# if HAVE_EVENTFD 147# if HAVE_EVENTFD
126# define EV_USE_EVENTFD 1 148# define EV_USE_EVENTFD 1
127# else 149# else
128# define EV_USE_EVENTFD 0 150# define EV_USE_EVENTFD 0
129# endif 151# endif
130# endif 152# endif
131 153
132#endif 154#endif
133 155
134#include <math.h> 156#include <math.h>
135#include <stdlib.h> 157#include <stdlib.h>
136#include <fcntl.h> 158#include <fcntl.h>
… …
154#ifndef _WIN32 176#ifndef _WIN32
155# include <sys/time.h> 177# include <sys/time.h>
156# include <sys/wait.h> 178# include <sys/wait.h>
157# include <unistd.h> 179# include <unistd.h>
158#else 180#else
181# include <io.h>
159# define WIN32_LEAN_AND_MEAN 182# define WIN32_LEAN_AND_MEAN
160# include <windows.h> 183# include <windows.h>
161# ifndef EV_SELECT_IS_WINSOCKET 184# ifndef EV_SELECT_IS_WINSOCKET
162# define EV_SELECT_IS_WINSOCKET 1 185# define EV_SELECT_IS_WINSOCKET 1
163# endif 186# endif
164#endif 187#endif
165 188
166/* this block tries to deduce configuration from header-defined symbols and defaults */ 189/* this block tries to deduce configuration from header-defined symbols and defaults */
167 190
191/* try to deduce the maximum number of signals on this platform */
192#if defined (EV_NSIG)
193/* use what's provided */
194#elif defined (NSIG)
195# define EV_NSIG (NSIG)
196#elif defined(_NSIG)
197# define EV_NSIG (_NSIG)
198#elif defined (SIGMAX)
199# define EV_NSIG (SIGMAX+1)
200#elif defined (SIG_MAX)
201# define EV_NSIG (SIG_MAX+1)
202#elif defined (_SIG_MAX)
203# define EV_NSIG (_SIG_MAX+1)
204#elif defined (MAXSIG)
205# define EV_NSIG (MAXSIG+1)
206#elif defined (MAX_SIG)
207# define EV_NSIG (MAX_SIG+1)
208#elif defined (SIGARRAYSIZE)
209# define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */
210#elif defined (_sys_nsig)
211# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
212#else
213# error "unable to find value for NSIG, please report"
214/* to make it compile regardless, just remove the above line */
215# define EV_NSIG 65
216#endif
217
218#ifndef EV_USE_CLOCK_SYSCALL
219# if __linux && __GLIBC__ >= 2
220# define EV_USE_CLOCK_SYSCALL 1
221# else
222# define EV_USE_CLOCK_SYSCALL 0
223# endif
224#endif
225
168#ifndef EV_USE_MONOTONIC 226#ifndef EV_USE_MONOTONIC
227# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0
228# define EV_USE_MONOTONIC 1
229# else
169# define EV_USE_MONOTONIC 0 230# define EV_USE_MONOTONIC 0
231# endif
170#endif 232#endif
171 233
172#ifndef EV_USE_REALTIME 234#ifndef EV_USE_REALTIME
173# define EV_USE_REALTIME 0 235# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
174#endif 236#endif
175 237
176#ifndef EV_USE_NANOSLEEP 238#ifndef EV_USE_NANOSLEEP
239# if _POSIX_C_SOURCE >= 199309L
240# define EV_USE_NANOSLEEP 1
241# else
177# define EV_USE_NANOSLEEP 0 242# define EV_USE_NANOSLEEP 0
243# endif
178#endif 244#endif
179 245
180#ifndef EV_USE_SELECT 246#ifndef EV_USE_SELECT
181# define EV_USE_SELECT 1 247# define EV_USE_SELECT 1
182#endif 248#endif
… …
235# else 301# else
236# define EV_USE_EVENTFD 0 302# define EV_USE_EVENTFD 0
237# endif 303# endif
238#endif 304#endif
239 305
306#ifndef EV_USE_SIGNALFD
307# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 9))
308# define EV_USE_SIGNALFD 1
309# else
310# define EV_USE_SIGNALFD 0
311# endif
312#endif
313
314#if 0 /* debugging */
315# define EV_VERIFY 3
316# define EV_USE_4HEAP 1
317# define EV_HEAP_CACHE_AT 1
318#endif
319
320#ifndef EV_VERIFY
321# define EV_VERIFY !EV_MINIMAL
322#endif
323
324#ifndef EV_USE_4HEAP
325# define EV_USE_4HEAP !EV_MINIMAL
326#endif
327
328#ifndef EV_HEAP_CACHE_AT
329# define EV_HEAP_CACHE_AT !EV_MINIMAL
330#endif
331
332/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
333/* which makes programs even slower. might work on other unices, too. */
334#if EV_USE_CLOCK_SYSCALL
335# include <syscall.h>
336# ifdef SYS_clock_gettime
337# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
338# undef EV_USE_MONOTONIC
339# define EV_USE_MONOTONIC 1
340# else
341# undef EV_USE_CLOCK_SYSCALL
342# define EV_USE_CLOCK_SYSCALL 0
343# endif
344#endif
345
240/* this block fixes any misconfiguration where we know we run into trouble otherwise */ 346/* this block fixes any misconfiguration where we know we run into trouble otherwise */
241 347
242#ifndef CLOCK_MONOTONIC 348#ifndef CLOCK_MONOTONIC
243# undef EV_USE_MONOTONIC 349# undef EV_USE_MONOTONIC
244# define EV_USE_MONOTONIC 0 350# define EV_USE_MONOTONIC 0
… …
259# include <sys/select.h> 365# include <sys/select.h>
260# endif 366# endif
261#endif 367#endif
262 368
263#if EV_USE_INOTIFY 369#if EV_USE_INOTIFY
370# include <sys/utsname.h>
371# include <sys/statfs.h>
264# include <sys/inotify.h> 372# include <sys/inotify.h>
373/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
374# ifndef IN_DONT_FOLLOW
375# undef EV_USE_INOTIFY
376# define EV_USE_INOTIFY 0
377# endif
265#endif 378#endif
266 379
267#if EV_SELECT_IS_WINSOCKET 380#if EV_SELECT_IS_WINSOCKET
268# include <winsock.h> 381# include <winsock.h>
269#endif 382#endif
270 383
271#if EV_USE_EVENTFD 384#if EV_USE_EVENTFD
272/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 385/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
273# include <stdint.h> 386# include <stdint.h>
387# ifndef EFD_NONBLOCK
388# define EFD_NONBLOCK O_NONBLOCK
389# endif
390# ifndef EFD_CLOEXEC
391# ifdef O_CLOEXEC
392# define EFD_CLOEXEC O_CLOEXEC
393# else
394# define EFD_CLOEXEC 02000000
395# endif
396# endif
274# ifdef __cplusplus 397# ifdef __cplusplus
275extern "C" { 398extern "C" {
276# endif 399# endif
277int eventfd (unsigned int initval, int flags); 400int eventfd (unsigned int initval, int flags);
278# ifdef __cplusplus 401# ifdef __cplusplus
279} 402}
280# endif 403# endif
281#endif 404#endif
282 405
406#if EV_USE_SIGNALFD
407# include <sys/signalfd.h>
408#endif
409
283/**/ 410/**/
411
412#if EV_VERIFY >= 3
413# define EV_FREQUENT_CHECK ev_loop_verify (EV_A)
414#else
415# define EV_FREQUENT_CHECK do { } while (0)
416#endif
284 417
285/* 418/*
286 * This is used to avoid floating point rounding problems. 419 * This is used to avoid floating point rounding problems.
287 * It is added to ev_rt_now when scheduling periodics 420 * It is added to ev_rt_now when scheduling periodics
288 * to ensure progress, time-wise, even when rounding 421 * to ensure progress, time-wise, even when rounding
… …
315# define inline_speed static noinline 448# define inline_speed static noinline
316#else 449#else
317# define inline_speed static inline 450# define inline_speed static inline
318#endif 451#endif
319 452
320#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 453#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
454
455#if EV_MINPRI == EV_MAXPRI
456# define ABSPRI(w) (((W)w), 0)
457#else
321#define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 458# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
459#endif
322 460
323#define EMPTY /* required for microsofts broken pseudo-c compiler */ 461#define EMPTY /* required for microsofts broken pseudo-c compiler */
324#define EMPTY2(a,b) /* used to suppress some warnings */ 462#define EMPTY2(a,b) /* used to suppress some warnings */
325 463
326typedef ev_watcher *W; 464typedef ev_watcher *W;
327typedef ev_watcher_list *WL; 465typedef ev_watcher_list *WL;
328typedef ev_watcher_time *WT; 466typedef ev_watcher_time *WT;
329 467
468#define ev_active(w) ((W)(w))->active
330#define ev_at(w) ((WT)(w))->at 469#define ev_at(w) ((WT)(w))->at
331 470
332#if EV_USE_MONOTONIC 471#if EV_USE_REALTIME
333/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 472/* sig_atomic_t is used to avoid per-thread variables or locking but still */
334/* giving it a reasonably high chance of working on typical architetcures */ 473/* giving it a reasonably high chance of working on typical architetcures */
474static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
475#endif
476
477#if EV_USE_MONOTONIC
335static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 478static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
479#endif
480
481#ifndef EV_FD_TO_WIN32_HANDLE
482# define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd)
483#endif
484#ifndef EV_WIN32_HANDLE_TO_FD
485# define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (fd, 0)
486#endif
487#ifndef EV_WIN32_CLOSE_FD
488# define EV_WIN32_CLOSE_FD(fd) close (fd)
336#endif 489#endif
337 490
338#ifdef _WIN32 491#ifdef _WIN32
339# include "ev_win32.c" 492# include "ev_win32.c"
340#endif 493#endif
… …
348{ 501{
349 syserr_cb = cb; 502 syserr_cb = cb;
350} 503}
351 504
352static void noinline 505static void noinline
353syserr (const char *msg) 506ev_syserr (const char *msg)
354{ 507{
355 if (!msg) 508 if (!msg)
356 msg = "(libev) system error"; 509 msg = "(libev) system error";
357 510
358 if (syserr_cb) 511 if (syserr_cb)
… …
404#define ev_malloc(size) ev_realloc (0, (size)) 557#define ev_malloc(size) ev_realloc (0, (size))
405#define ev_free(ptr) ev_realloc ((ptr), 0) 558#define ev_free(ptr) ev_realloc ((ptr), 0)
406 559
407/*****************************************************************************/ 560/*****************************************************************************/
408 561
562/* set in reify when reification needed */
563#define EV_ANFD_REIFY 1
564
565/* file descriptor info structure */
409typedef struct 566typedef struct
410{ 567{
411 WL head; 568 WL head;
412 unsigned char events; 569 unsigned char events; /* the events watched for */
570 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
571 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
413 unsigned char reify; 572 unsigned char unused;
573#if EV_USE_EPOLL
574 unsigned int egen; /* generation counter to counter epoll bugs */
575#endif
414#if EV_SELECT_IS_WINSOCKET 576#if EV_SELECT_IS_WINSOCKET
415 SOCKET handle; 577 SOCKET handle;
416#endif 578#endif
417} ANFD; 579} ANFD;
418 580
581/* stores the pending event set for a given watcher */
419typedef struct 582typedef struct
420{ 583{
421 W w; 584 W w;
422 int events; 585 int events; /* the pending event set for the given watcher */
423} ANPENDING; 586} ANPENDING;
424 587
425#if EV_USE_INOTIFY 588#if EV_USE_INOTIFY
589/* hash table entry per inotify-id */
426typedef struct 590typedef struct
427{ 591{
428 WL head; 592 WL head;
429} ANFS; 593} ANFS;
594#endif
595
596/* Heap Entry */
597#if EV_HEAP_CACHE_AT
598 /* a heap element */
599 typedef struct {
600 ev_tstamp at;
601 WT w;
602 } ANHE;
603
604 #define ANHE_w(he) (he).w /* access watcher, read-write */
605 #define ANHE_at(he) (he).at /* access cached at, read-only */
606 #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */
607#else
608 /* a heap element */
609 typedef WT ANHE;
610
611 #define ANHE_w(he) (he)
612 #define ANHE_at(he) (he)->at
613 #define ANHE_at_cache(he)
430#endif 614#endif
431 615
432#if EV_MULTIPLICITY 616#if EV_MULTIPLICITY
433 617
434 struct ev_loop 618 struct ev_loop
… …
453 637
454 static int ev_default_loop_ptr; 638 static int ev_default_loop_ptr;
455 639
456#endif 640#endif
457 641
642#if EV_MINIMAL < 2
643# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
644# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
645# define EV_INVOKE_PENDING invoke_cb (EV_A)
646#else
647# define EV_RELEASE_CB (void)0
648# define EV_ACQUIRE_CB (void)0
649# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
650#endif
651
652#define EVUNLOOP_RECURSE 0x80
653
458/*****************************************************************************/ 654/*****************************************************************************/
459 655
656#ifndef EV_HAVE_EV_TIME
460ev_tstamp 657ev_tstamp
461ev_time (void) 658ev_time (void)
462{ 659{
463#if EV_USE_REALTIME 660#if EV_USE_REALTIME
661 if (expect_true (have_realtime))
662 {
464 struct timespec ts; 663 struct timespec ts;
465 clock_gettime (CLOCK_REALTIME, &ts); 664 clock_gettime (CLOCK_REALTIME, &ts);
466 return ts.tv_sec + ts.tv_nsec * 1e-9; 665 return ts.tv_sec + ts.tv_nsec * 1e-9;
467#else 666 }
667#endif
668
468 struct timeval tv; 669 struct timeval tv;
469 gettimeofday (&tv, 0); 670 gettimeofday (&tv, 0);
470 return tv.tv_sec + tv.tv_usec * 1e-6; 671 return tv.tv_sec + tv.tv_usec * 1e-6;
471#endif
472} 672}
673#endif
473 674
474ev_tstamp inline_size 675inline_size ev_tstamp
475get_clock (void) 676get_clock (void)
476{ 677{
477#if EV_USE_MONOTONIC 678#if EV_USE_MONOTONIC
478 if (expect_true (have_monotonic)) 679 if (expect_true (have_monotonic))
479 { 680 {
… …
512 struct timeval tv; 713 struct timeval tv;
513 714
514 tv.tv_sec = (time_t)delay; 715 tv.tv_sec = (time_t)delay;
515 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); 716 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
516 717
718 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
719 /* something not guaranteed by newer posix versions, but guaranteed */
720 /* by older ones */
517 select (0, 0, 0, 0, &tv); 721 select (0, 0, 0, 0, &tv);
518#endif 722#endif
519 } 723 }
520} 724}
521 725
522/*****************************************************************************/ 726/*****************************************************************************/
523 727
524int inline_size 728#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
729
730/* find a suitable new size for the given array, */
731/* hopefully by rounding to a ncie-to-malloc size */
732inline_size int
525array_nextsize (int elem, int cur, int cnt) 733array_nextsize (int elem, int cur, int cnt)
526{ 734{
527 int ncur = cur + 1; 735 int ncur = cur + 1;
528 736
529 do 737 do
530 ncur <<= 1; 738 ncur <<= 1;
531 while (cnt > ncur); 739 while (cnt > ncur);
532 740
533 /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */ 741 /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */
534 if (elem * ncur > 4096) 742 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
535 { 743 {
536 ncur *= elem; 744 ncur *= elem;
537 ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095; 745 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
538 ncur = ncur - sizeof (void *) * 4; 746 ncur = ncur - sizeof (void *) * 4;
539 ncur /= elem; 747 ncur /= elem;
540 } 748 }
541 749
542 return ncur; 750 return ncur;
… …
546array_realloc (int elem, void *base, int *cur, int cnt) 754array_realloc (int elem, void *base, int *cur, int cnt)
547{ 755{
548 *cur = array_nextsize (elem, *cur, cnt); 756 *cur = array_nextsize (elem, *cur, cnt);
549 return ev_realloc (base, elem * *cur); 757 return ev_realloc (base, elem * *cur);
550} 758}
759
760#define array_init_zero(base,count) \
761 memset ((void *)(base), 0, sizeof (*(base)) * (count))
551 762
552#define array_needsize(type,base,cur,cnt,init) \ 763#define array_needsize(type,base,cur,cnt,init) \
553 if (expect_false ((cnt) > (cur))) \ 764 if (expect_false ((cnt) > (cur))) \
554 { \ 765 { \
555 int ocur_ = (cur); \ 766 int ocur_ = (cur); \
… …
567 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ 778 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
568 } 779 }
569#endif 780#endif
570 781
571#define array_free(stem, idx) \ 782#define array_free(stem, idx) \
572 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; 783 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
573 784
574/*****************************************************************************/ 785/*****************************************************************************/
786
787/* dummy callback for pending events */
788static void noinline
789pendingcb (EV_P_ ev_prepare *w, int revents)
790{
791}
575 792
576void noinline 793void noinline
577ev_feed_event (EV_P_ void *w, int revents) 794ev_feed_event (EV_P_ void *w, int revents)
578{ 795{
579 W w_ = (W)w; 796 W w_ = (W)w;
… …
588 pendings [pri][w_->pending - 1].w = w_; 805 pendings [pri][w_->pending - 1].w = w_;
589 pendings [pri][w_->pending - 1].events = revents; 806 pendings [pri][w_->pending - 1].events = revents;
590 } 807 }
591} 808}
592 809
593void inline_speed 810inline_speed void
811feed_reverse (EV_P_ W w)
812{
813 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2);
814 rfeeds [rfeedcnt++] = w;
815}
816
817inline_size void
818feed_reverse_done (EV_P_ int revents)
819{
820 do
821 ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents);
822 while (rfeedcnt);
823}
824
825inline_speed void
594queue_events (EV_P_ W *events, int eventcnt, int type) 826queue_events (EV_P_ W *events, int eventcnt, int type)
595{ 827{
596 int i; 828 int i;
597 829
598 for (i = 0; i < eventcnt; ++i) 830 for (i = 0; i < eventcnt; ++i)
599 ev_feed_event (EV_A_ events [i], type); 831 ev_feed_event (EV_A_ events [i], type);
600} 832}
601 833
602/*****************************************************************************/ 834/*****************************************************************************/
603 835
604void inline_size 836inline_speed void
605anfds_init (ANFD *base, int count)
606{
607 while (count--)
608 {
609 base->head = 0;
610 base->events = EV_NONE;
611 base->reify = 0;
612
613 ++base;
614 }
615}
616
617void inline_speed
618fd_event (EV_P_ int fd, int revents) 837fd_event_nc (EV_P_ int fd, int revents)
619{ 838{
620 ANFD *anfd = anfds + fd; 839 ANFD *anfd = anfds + fd;
621 ev_io *w; 840 ev_io *w;
622 841
623 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 842 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
627 if (ev) 846 if (ev)
628 ev_feed_event (EV_A_ (W)w, ev); 847 ev_feed_event (EV_A_ (W)w, ev);
629 } 848 }
630} 849}
631 850
851/* do not submit kernel events for fds that have reify set */
852/* because that means they changed while we were polling for new events */
853inline_speed void
854fd_event (EV_P_ int fd, int revents)
855{
856 ANFD *anfd = anfds + fd;
857
858 if (expect_true (!anfd->reify))
859 fd_event_nc (EV_A_ fd, revents);
860}
861
632void 862void
633ev_feed_fd_event (EV_P_ int fd, int revents) 863ev_feed_fd_event (EV_P_ int fd, int revents)
634{ 864{
635 if (fd >= 0 && fd < anfdmax) 865 if (fd >= 0 && fd < anfdmax)
636 fd_event (EV_A_ fd, revents); 866 fd_event_nc (EV_A_ fd, revents);
637} 867}
638 868
639void inline_size 869/* make sure the external fd watch events are in-sync */
870/* with the kernel/libev internal state */
871inline_size void
640fd_reify (EV_P) 872fd_reify (EV_P)
641{ 873{
642 int i; 874 int i;
643 875
644 for (i = 0; i < fdchangecnt; ++i) 876 for (i = 0; i < fdchangecnt; ++i)
… …
653 events |= (unsigned char)w->events; 885 events |= (unsigned char)w->events;
654 886
655#if EV_SELECT_IS_WINSOCKET 887#if EV_SELECT_IS_WINSOCKET
656 if (events) 888 if (events)
657 { 889 {
658 unsigned long argp; 890 unsigned long arg;
659 #ifdef EV_FD_TO_WIN32_HANDLE
660 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 891 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
661 #else
662 anfd->handle = _get_osfhandle (fd);
663 #endif
664 assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); 892 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
665 } 893 }
666#endif 894#endif
667 895
668 { 896 {
669 unsigned char o_events = anfd->events; 897 unsigned char o_events = anfd->events;
670 unsigned char o_reify = anfd->reify; 898 unsigned char o_reify = anfd->reify;
671 899
672 anfd->reify = 0; 900 anfd->reify = 0;
673 anfd->events = events; 901 anfd->events = events;
674 902
675 if (o_events != events || o_reify & EV_IOFDSET) 903 if (o_events != events || o_reify & EV__IOFDSET)
676 backend_modify (EV_A_ fd, o_events, events); 904 backend_modify (EV_A_ fd, o_events, events);
677 } 905 }
678 } 906 }
679 907
680 fdchangecnt = 0; 908 fdchangecnt = 0;
681} 909}
682 910
683void inline_size 911/* something about the given fd changed */
912inline_size void
684fd_change (EV_P_ int fd, int flags) 913fd_change (EV_P_ int fd, int flags)
685{ 914{
686 unsigned char reify = anfds [fd].reify; 915 unsigned char reify = anfds [fd].reify;
687 anfds [fd].reify |= flags; 916 anfds [fd].reify |= flags;
688 917
… …
692 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 921 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
693 fdchanges [fdchangecnt - 1] = fd; 922 fdchanges [fdchangecnt - 1] = fd;
694 } 923 }
695} 924}
696 925
697void inline_speed 926/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
927inline_speed void
698fd_kill (EV_P_ int fd) 928fd_kill (EV_P_ int fd)
699{ 929{
700 ev_io *w; 930 ev_io *w;
701 931
702 while ((w = (ev_io *)anfds [fd].head)) 932 while ((w = (ev_io *)anfds [fd].head))
… …
704 ev_io_stop (EV_A_ w); 934 ev_io_stop (EV_A_ w);
705 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 935 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
706 } 936 }
707} 937}
708 938
709int inline_size 939/* check whether the given fd is atcually valid, for error recovery */
940inline_size int
710fd_valid (int fd) 941fd_valid (int fd)
711{ 942{
712#ifdef _WIN32 943#ifdef _WIN32
713 return _get_osfhandle (fd) != -1; 944 return _get_osfhandle (fd) != -1;
714#else 945#else
… …
722{ 953{
723 int fd; 954 int fd;
724 955
725 for (fd = 0; fd < anfdmax; ++fd) 956 for (fd = 0; fd < anfdmax; ++fd)
726 if (anfds [fd].events) 957 if (anfds [fd].events)
727 if (!fd_valid (fd) == -1 && errno == EBADF) 958 if (!fd_valid (fd) && errno == EBADF)
728 fd_kill (EV_A_ fd); 959 fd_kill (EV_A_ fd);
729} 960}
730 961
731/* called on ENOMEM in select/poll to kill some fds and retry */ 962/* called on ENOMEM in select/poll to kill some fds and retry */
732static void noinline 963static void noinline
… …
736 967
737 for (fd = anfdmax; fd--; ) 968 for (fd = anfdmax; fd--; )
738 if (anfds [fd].events) 969 if (anfds [fd].events)
739 { 970 {
740 fd_kill (EV_A_ fd); 971 fd_kill (EV_A_ fd);
741 return; 972 break;
742 } 973 }
743} 974}
744 975
745/* usually called after fork if backend needs to re-arm all fds from scratch */ 976/* usually called after fork if backend needs to re-arm all fds from scratch */
746static void noinline 977static void noinline
… …
750 981
751 for (fd = 0; fd < anfdmax; ++fd) 982 for (fd = 0; fd < anfdmax; ++fd)
752 if (anfds [fd].events) 983 if (anfds [fd].events)
753 { 984 {
754 anfds [fd].events = 0; 985 anfds [fd].events = 0;
986 anfds [fd].emask = 0;
755 fd_change (EV_A_ fd, EV_IOFDSET | 1); 987 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
756 } 988 }
757} 989}
758 990
759/*****************************************************************************/ 991/*****************************************************************************/
760 992
993/*
994 * the heap functions want a real array index. array index 0 uis guaranteed to not
995 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
996 * the branching factor of the d-tree.
997 */
998
999/*
1000 * at the moment we allow libev the luxury of two heaps,
1001 * a small-code-size 2-heap one and a ~1.5kb larger 4-heap
1002 * which is more cache-efficient.
1003 * the difference is about 5% with 50000+ watchers.
1004 */
1005#if EV_USE_4HEAP
1006
1007#define DHEAP 4
1008#define HEAP0 (DHEAP - 1) /* index of first element in heap */
1009#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0)
1010#define UPHEAP_DONE(p,k) ((p) == (k))
1011
1012/* away from the root */
1013inline_speed void
1014downheap (ANHE *heap, int N, int k)
1015{
1016 ANHE he = heap [k];
1017 ANHE *E = heap + N + HEAP0;
1018
1019 for (;;)
1020 {
1021 ev_tstamp minat;
1022 ANHE *minpos;
1023 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;
1024
1025 /* find minimum child */
1026 if (expect_true (pos + DHEAP - 1 < E))
1027 {
1028 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
1029 if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos));
1030 if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos));
1031 if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos));
1032 }
1033 else if (pos < E)
1034 {
1035 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
1036 if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos));
1037 if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos));
1038 if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos));
1039 }
1040 else
1041 break;
1042
1043 if (ANHE_at (he) <= minat)
1044 break;
1045
1046 heap [k] = *minpos;
1047 ev_active (ANHE_w (*minpos)) = k;
1048
1049 k = minpos - heap;
1050 }
1051
1052 heap [k] = he;
1053 ev_active (ANHE_w (he)) = k;
1054}
1055
1056#else /* 4HEAP */
1057
1058#define HEAP0 1
1059#define HPARENT(k) ((k) >> 1)
1060#define UPHEAP_DONE(p,k) (!(p))
1061
1062/* away from the root */
1063inline_speed void
1064downheap (ANHE *heap, int N, int k)
1065{
1066 ANHE he = heap [k];
1067
1068 for (;;)
1069 {
1070 int c = k << 1;
1071
1072 if (c >= N + HEAP0)
1073 break;
1074
1075 c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])
1076 ? 1 : 0;
1077
1078 if (ANHE_at (he) <= ANHE_at (heap [c]))
1079 break;
1080
1081 heap [k] = heap [c];
1082 ev_active (ANHE_w (heap [k])) = k;
1083
1084 k = c;
1085 }
1086
1087 heap [k] = he;
1088 ev_active (ANHE_w (he)) = k;
1089}
1090#endif
1091
761/* towards the root */ 1092/* towards the root */
762void inline_speed 1093inline_speed void
763upheap (WT *heap, int k) 1094upheap (ANHE *heap, int k)
764{ 1095{
765 WT w = heap [k]; 1096 ANHE he = heap [k];
766 1097
767 for (;;) 1098 for (;;)
768 { 1099 {
769 int p = k >> 1; 1100 int p = HPARENT (k);
770 1101
771 /* maybe we could use a dummy element at heap [0]? */ 1102 if (UPHEAP_DONE (p, k) || ANHE_at (heap [p]) <= ANHE_at (he))
772 if (!p || heap [p]->at <= w->at)
773 break; 1103 break;
774 1104
775 heap [k] = heap [p]; 1105 heap [k] = heap [p];
776 ((W)heap [k])->active = k; 1106 ev_active (ANHE_w (heap [k])) = k;
777 k = p; 1107 k = p;
778 } 1108 }
779 1109
780 heap [k] = w; 1110 heap [k] = he;
781 ((W)heap [k])->active = k; 1111 ev_active (ANHE_w (he)) = k;
782} 1112}
783 1113
784/* away from the root */ 1114/* move an element suitably so it is in a correct place */
785void inline_speed 1115inline_size void
786downheap (WT *heap, int N, int k)
787{
788 WT w = heap [k];
789
790 for (;;)
791 {
792 int c = k << 1;
793
794 if (c > N)
795 break;
796
797 c += c < N && heap [c]->at > heap [c + 1]->at
798 ? 1 : 0;
799
800 if (w->at <= heap [c]->at)
801 break;
802
803 heap [k] = heap [c];
804 ((W)heap [k])->active = k;
805
806 k = c;
807 }
808
809 heap [k] = w;
810 ((W)heap [k])->active = k;
811}
812
813void inline_size
814adjustheap (WT *heap, int N, int k) 1116adjustheap (ANHE *heap, int N, int k)
815{ 1117{
1118 if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)]))
816 upheap (heap, k); 1119 upheap (heap, k);
1120 else
817 downheap (heap, N, k); 1121 downheap (heap, N, k);
1122}
1123
1124/* rebuild the heap: this function is used only once and executed rarely */
1125inline_size void
1126reheap (ANHE *heap, int N)
1127{
1128 int i;
1129
1130 /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */
1131 /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */
1132 for (i = 0; i < N; ++i)
1133 upheap (heap, i + HEAP0);
818} 1134}
819 1135
820/*****************************************************************************/ 1136/*****************************************************************************/
821 1137
1138/* associate signal watchers to a signal signal */
822typedef struct 1139typedef struct
823{ 1140{
1141 EV_ATOMIC_T pending;
1142#if EV_MULTIPLICITY
1143 EV_P;
1144#endif
824 WL head; 1145 WL head;
825 EV_ATOMIC_T gotsig;
826} ANSIG; 1146} ANSIG;
827 1147
828static ANSIG *signals; 1148static ANSIG signals [EV_NSIG - 1];
829static int signalmax;
830
831static EV_ATOMIC_T gotsig;
832
833void inline_size
834signals_init (ANSIG *base, int count)
835{
836 while (count--)
837 {
838 base->head = 0;
839 base->gotsig = 0;
840
841 ++base;
842 }
843}
844 1149
845/*****************************************************************************/ 1150/*****************************************************************************/
846 1151
847void inline_speed 1152/* used to prepare libev internal fd's */
1153/* this is not fork-safe */
1154inline_speed void
848fd_intern (int fd) 1155fd_intern (int fd)
849{ 1156{
850#ifdef _WIN32 1157#ifdef _WIN32
851 int arg = 1; 1158 unsigned long arg = 1;
852 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); 1159 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
853#else 1160#else
854 fcntl (fd, F_SETFD, FD_CLOEXEC); 1161 fcntl (fd, F_SETFD, FD_CLOEXEC);
855 fcntl (fd, F_SETFL, O_NONBLOCK); 1162 fcntl (fd, F_SETFL, O_NONBLOCK);
856#endif 1163#endif
857} 1164}
858 1165
859static void noinline 1166static void noinline
860evpipe_init (EV_P) 1167evpipe_init (EV_P)
861{ 1168{
862 if (!ev_is_active (&pipeev)) 1169 if (!ev_is_active (&pipe_w))
863 { 1170 {
864#if EV_USE_EVENTFD 1171#if EV_USE_EVENTFD
1172 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1173 if (evfd < 0 && errno == EINVAL)
865 if ((evfd = eventfd (0, 0)) >= 0) 1174 evfd = eventfd (0, 0);
1175
1176 if (evfd >= 0)
866 { 1177 {
867 evpipe [0] = -1; 1178 evpipe [0] = -1;
868 fd_intern (evfd); 1179 fd_intern (evfd); /* doing it twice doesn't hurt */
869 ev_io_set (&pipeev, evfd, EV_READ); 1180 ev_io_set (&pipe_w, evfd, EV_READ);
870 } 1181 }
871 else 1182 else
872#endif 1183#endif
873 { 1184 {
874 while (pipe (evpipe)) 1185 while (pipe (evpipe))
875 syserr ("(libev) error creating signal/async pipe"); 1186 ev_syserr ("(libev) error creating signal/async pipe");
876 1187
877 fd_intern (evpipe [0]); 1188 fd_intern (evpipe [0]);
878 fd_intern (evpipe [1]); 1189 fd_intern (evpipe [1]);
879 ev_io_set (&pipeev, evpipe [0], EV_READ); 1190 ev_io_set (&pipe_w, evpipe [0], EV_READ);
880 } 1191 }
881 1192
882 ev_io_start (EV_A_ &pipeev); 1193 ev_io_start (EV_A_ &pipe_w);
883 ev_unref (EV_A); /* watcher should not keep loop alive */ 1194 ev_unref (EV_A); /* watcher should not keep loop alive */
884 } 1195 }
885} 1196}
886 1197
887void inline_size 1198inline_size void
888evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1199evpipe_write (EV_P_ EV_ATOMIC_T *flag)
889{ 1200{
890 if (!*flag) 1201 if (!*flag)
891 { 1202 {
892 int old_errno = errno; /* save errno because write might clobber it */ 1203 int old_errno = errno; /* save errno because write might clobber it */
… …
905 1216
906 errno = old_errno; 1217 errno = old_errno;
907 } 1218 }
908} 1219}
909 1220
1221/* called whenever the libev signal pipe */
1222/* got some events (signal, async) */
910static void 1223static void
911pipecb (EV_P_ ev_io *iow, int revents) 1224pipecb (EV_P_ ev_io *iow, int revents)
912{ 1225{
1226 int i;
1227
913#if EV_USE_EVENTFD 1228#if EV_USE_EVENTFD
914 if (evfd >= 0) 1229 if (evfd >= 0)
915 { 1230 {
916 uint64_t counter = 1; 1231 uint64_t counter;
917 read (evfd, &counter, sizeof (uint64_t)); 1232 read (evfd, &counter, sizeof (uint64_t));
918 } 1233 }
919 else 1234 else
920#endif 1235#endif
921 { 1236 {
922 char dummy; 1237 char dummy;
923 read (evpipe [0], &dummy, 1); 1238 read (evpipe [0], &dummy, 1);
924 } 1239 }
925 1240
926 if (gotsig && ev_is_default_loop (EV_A)) 1241 if (sig_pending)
927 { 1242 {
928 int signum; 1243 sig_pending = 0;
929 gotsig = 0;
930 1244
931 for (signum = signalmax; signum--; ) 1245 for (i = EV_NSIG - 1; i--; )
932 if (signals [signum].gotsig) 1246 if (expect_false (signals [i].pending))
933 ev_feed_signal_event (EV_A_ signum + 1); 1247 ev_feed_signal_event (EV_A_ i + 1);
934 } 1248 }
935 1249
936#if EV_ASYNC_ENABLE 1250#if EV_ASYNC_ENABLE
937 if (gotasync) 1251 if (async_pending)
938 { 1252 {
939 int i; 1253 async_pending = 0;
940 gotasync = 0;
941 1254
942 for (i = asynccnt; i--; ) 1255 for (i = asynccnt; i--; )
943 if (asyncs [i]->sent) 1256 if (asyncs [i]->sent)
944 { 1257 {
945 asyncs [i]->sent = 0; 1258 asyncs [i]->sent = 0;
… …
953 1266
954static void 1267static void
955ev_sighandler (int signum) 1268ev_sighandler (int signum)
956{ 1269{
957#if EV_MULTIPLICITY 1270#if EV_MULTIPLICITY
958 struct ev_loop *loop = &default_loop_struct; 1271 EV_P = signals [signum - 1].loop;
959#endif 1272#endif
960 1273
961#if _WIN32 1274#if _WIN32
962 signal (signum, ev_sighandler); 1275 signal (signum, ev_sighandler);
963#endif 1276#endif
964 1277
965 signals [signum - 1].gotsig = 1; 1278 signals [signum - 1].pending = 1;
966 evpipe_write (EV_A_ &gotsig); 1279 evpipe_write (EV_A_ &sig_pending);
967} 1280}
968 1281
969void noinline 1282void noinline
970ev_feed_signal_event (EV_P_ int signum) 1283ev_feed_signal_event (EV_P_ int signum)
971{ 1284{
972 WL w; 1285 WL w;
973 1286
1287 if (expect_false (signum <= 0 || signum > EV_NSIG))
1288 return;
1289
1290 --signum;
1291
974#if EV_MULTIPLICITY 1292#if EV_MULTIPLICITY
975 assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); 1293 /* it is permissible to try to feed a signal to the wrong loop */
976#endif 1294 /* or, likely more useful, feeding a signal nobody is waiting for */
977 1295
978 --signum; 1296 if (expect_false (signals [signum].loop != EV_A))
979
980 if (signum < 0 || signum >= signalmax)
981 return; 1297 return;
1298#endif
982 1299
983 signals [signum].gotsig = 0; 1300 signals [signum].pending = 0;
984 1301
985 for (w = signals [signum].head; w; w = w->next) 1302 for (w = signals [signum].head; w; w = w->next)
986 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 1303 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
987} 1304}
988 1305
1306#if EV_USE_SIGNALFD
1307static void
1308sigfdcb (EV_P_ ev_io *iow, int revents)
1309{
1310 struct signalfd_siginfo si[2], *sip; /* these structs are big */
1311
1312 for (;;)
1313 {
1314 ssize_t res = read (sigfd, si, sizeof (si));
1315
1316 /* not ISO-C, as res might be -1, but works with SuS */
1317 for (sip = si; (char *)sip < (char *)si + res; ++sip)
1318 ev_feed_signal_event (EV_A_ sip->ssi_signo);
1319
1320 if (res < (ssize_t)sizeof (si))
1321 break;
1322 }
1323}
1324#endif
1325
989/*****************************************************************************/ 1326/*****************************************************************************/
990 1327
991static WL childs [EV_PID_HASHSIZE]; 1328static WL childs [EV_PID_HASHSIZE];
992 1329
993#ifndef _WIN32 1330#ifndef _WIN32
… …
996 1333
997#ifndef WIFCONTINUED 1334#ifndef WIFCONTINUED
998# define WIFCONTINUED(status) 0 1335# define WIFCONTINUED(status) 0
999#endif 1336#endif
1000 1337
1001void inline_speed 1338/* handle a single child status event */
1339inline_speed void
1002child_reap (EV_P_ int chain, int pid, int status) 1340child_reap (EV_P_ int chain, int pid, int status)
1003{ 1341{
1004 ev_child *w; 1342 ev_child *w;
1005 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 1343 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1006 1344
… …
1019 1357
1020#ifndef WCONTINUED 1358#ifndef WCONTINUED
1021# define WCONTINUED 0 1359# define WCONTINUED 0
1022#endif 1360#endif
1023 1361
1362/* called on sigchld etc., calls waitpid */
1024static void 1363static void
1025childcb (EV_P_ ev_signal *sw, int revents) 1364childcb (EV_P_ ev_signal *sw, int revents)
1026{ 1365{
1027 int pid, status; 1366 int pid, status;
1028 1367
… …
1109 /* kqueue is borked on everything but netbsd apparently */ 1448 /* kqueue is borked on everything but netbsd apparently */
1110 /* it usually doesn't work correctly on anything but sockets and pipes */ 1449 /* it usually doesn't work correctly on anything but sockets and pipes */
1111 flags &= ~EVBACKEND_KQUEUE; 1450 flags &= ~EVBACKEND_KQUEUE;
1112#endif 1451#endif
1113#ifdef __APPLE__ 1452#ifdef __APPLE__
1114 // flags &= ~EVBACKEND_KQUEUE; for documentation 1453 /* only select works correctly on that "unix-certified" platform */
1115 flags &= ~EVBACKEND_POLL; 1454 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1455 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1116#endif 1456#endif
1117 1457
1118 return flags; 1458 return flags;
1119} 1459}
1120 1460
… …
1134ev_backend (EV_P) 1474ev_backend (EV_P)
1135{ 1475{
1136 return backend; 1476 return backend;
1137} 1477}
1138 1478
1479#if EV_MINIMAL < 2
1139unsigned int 1480unsigned int
1140ev_loop_count (EV_P) 1481ev_loop_count (EV_P)
1141{ 1482{
1142 return loop_count; 1483 return loop_count;
1143} 1484}
1144 1485
1486unsigned int
1487ev_loop_depth (EV_P)
1488{
1489 return loop_depth;
1490}
1491
1145void 1492void
1146ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 1493ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
1147{ 1494{
1148 io_blocktime = interval; 1495 io_blocktime = interval;
1149} 1496}
… …
1152ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 1499ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
1153{ 1500{
1154 timeout_blocktime = interval; 1501 timeout_blocktime = interval;
1155} 1502}
1156 1503
1504void
1505ev_set_userdata (EV_P_ void *data)
1506{
1507 userdata = data;
1508}
1509
1510void *
1511ev_userdata (EV_P)
1512{
1513 return userdata;
1514}
1515
1516void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))
1517{
1518 invoke_cb = invoke_pending_cb;
1519}
1520
1521void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))
1522{
1523 release_cb = release;
1524 acquire_cb = acquire;
1525}
1526#endif
1527
1528/* initialise a loop structure, must be zero-initialised */
1157static void noinline 1529static void noinline
1158loop_init (EV_P_ unsigned int flags) 1530loop_init (EV_P_ unsigned int flags)
1159{ 1531{
1160 if (!backend) 1532 if (!backend)
1161 { 1533 {
1534#if EV_USE_REALTIME
1535 if (!have_realtime)
1536 {
1537 struct timespec ts;
1538
1539 if (!clock_gettime (CLOCK_REALTIME, &ts))
1540 have_realtime = 1;
1541 }
1542#endif
1543
1162#if EV_USE_MONOTONIC 1544#if EV_USE_MONOTONIC
1545 if (!have_monotonic)
1163 { 1546 {
1164 struct timespec ts; 1547 struct timespec ts;
1548
1165 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 1549 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1166 have_monotonic = 1; 1550 have_monotonic = 1;
1167 } 1551 }
1168#endif 1552#endif
1553
1554 /* pid check not overridable via env */
1555#ifndef _WIN32
1556 if (flags & EVFLAG_FORKCHECK)
1557 curpid = getpid ();
1558#endif
1559
1560 if (!(flags & EVFLAG_NOENV)
1561 && !enable_secure ()
1562 && getenv ("LIBEV_FLAGS"))
1563 flags = atoi (getenv ("LIBEV_FLAGS"));
1169 1564
1170 ev_rt_now = ev_time (); 1565 ev_rt_now = ev_time ();
1171 mn_now = get_clock (); 1566 mn_now = get_clock ();
1172 now_floor = mn_now; 1567 now_floor = mn_now;
1173 rtmn_diff = ev_rt_now - mn_now; 1568 rtmn_diff = ev_rt_now - mn_now;
1569#if EV_MINIMAL < 2
1570 invoke_cb = ev_invoke_pending;
1571#endif
1174 1572
1175 io_blocktime = 0.; 1573 io_blocktime = 0.;
1176 timeout_blocktime = 0.; 1574 timeout_blocktime = 0.;
1177 backend = 0; 1575 backend = 0;
1178 backend_fd = -1; 1576 backend_fd = -1;
1179 gotasync = 0; 1577 sig_pending = 0;
1578#if EV_ASYNC_ENABLE
1579 async_pending = 0;
1580#endif
1180#if EV_USE_INOTIFY 1581#if EV_USE_INOTIFY
1181 fs_fd = -2; 1582 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1182#endif 1583#endif
1183 1584#if EV_USE_SIGNALFD
1184 /* pid check not overridable via env */ 1585 sigfd = flags & EVFLAG_NOSIGFD ? -1 : -2;
1185#ifndef _WIN32
1186 if (flags & EVFLAG_FORKCHECK)
1187 curpid = getpid ();
1188#endif 1586#endif
1189
1190 if (!(flags & EVFLAG_NOENV)
1191 && !enable_secure ()
1192 && getenv ("LIBEV_FLAGS"))
1193 flags = atoi (getenv ("LIBEV_FLAGS"));
1194 1587
1195 if (!(flags & 0x0000ffffU)) 1588 if (!(flags & 0x0000ffffU))
1196 flags |= ev_recommended_backends (); 1589 flags |= ev_recommended_backends ();
1197 1590
1198#if EV_USE_PORT 1591#if EV_USE_PORT
… …
1209#endif 1602#endif
1210#if EV_USE_SELECT 1603#if EV_USE_SELECT
1211 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 1604 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1212#endif 1605#endif
1213 1606
1607 ev_prepare_init (&pending_w, pendingcb);
1608
1214 ev_init (&pipeev, pipecb); 1609 ev_init (&pipe_w, pipecb);
1215 ev_set_priority (&pipeev, EV_MAXPRI); 1610 ev_set_priority (&pipe_w, EV_MAXPRI);
1216 } 1611 }
1217} 1612}
1218 1613
1614/* free up a loop structure */
1219static void noinline 1615static void noinline
1220loop_destroy (EV_P) 1616loop_destroy (EV_P)
1221{ 1617{
1222 int i; 1618 int i;
1223 1619
1224 if (ev_is_active (&pipeev)) 1620 if (ev_is_active (&pipe_w))
1225 { 1621 {
1226 ev_ref (EV_A); /* signal watcher */ 1622 /*ev_ref (EV_A);*/
1227 ev_io_stop (EV_A_ &pipeev); 1623 /*ev_io_stop (EV_A_ &pipe_w);*/
1228 1624
1229#if EV_USE_EVENTFD 1625#if EV_USE_EVENTFD
1230 if (evfd >= 0) 1626 if (evfd >= 0)
1231 close (evfd); 1627 close (evfd);
1232#endif 1628#endif
1233 1629
1234 if (evpipe [0] >= 0) 1630 if (evpipe [0] >= 0)
1235 { 1631 {
1236 close (evpipe [0]); 1632 EV_WIN32_CLOSE_FD (evpipe [0]);
1237 close (evpipe [1]); 1633 EV_WIN32_CLOSE_FD (evpipe [1]);
1238 } 1634 }
1239 } 1635 }
1636
1637#if EV_USE_SIGNALFD
1638 if (ev_is_active (&sigfd_w))
1639 {
1640 /*ev_ref (EV_A);*/
1641 /*ev_io_stop (EV_A_ &sigfd_w);*/
1642
1643 close (sigfd);
1644 }
1645#endif
1240 1646
1241#if EV_USE_INOTIFY 1647#if EV_USE_INOTIFY
1242 if (fs_fd >= 0) 1648 if (fs_fd >= 0)
1243 close (fs_fd); 1649 close (fs_fd);
1244#endif 1650#endif
… …
1268#if EV_IDLE_ENABLE 1674#if EV_IDLE_ENABLE
1269 array_free (idle, [i]); 1675 array_free (idle, [i]);
1270#endif 1676#endif
1271 } 1677 }
1272 1678
1273 ev_free (anfds); anfdmax = 0; 1679 ev_free (anfds); anfds = 0; anfdmax = 0;
1274 1680
1275 /* have to use the microsoft-never-gets-it-right macro */ 1681 /* have to use the microsoft-never-gets-it-right macro */
1682 array_free (rfeed, EMPTY);
1276 array_free (fdchange, EMPTY); 1683 array_free (fdchange, EMPTY);
1277 array_free (timer, EMPTY); 1684 array_free (timer, EMPTY);
1278#if EV_PERIODIC_ENABLE 1685#if EV_PERIODIC_ENABLE
1279 array_free (periodic, EMPTY); 1686 array_free (periodic, EMPTY);
1280#endif 1687#endif
… …
1289 1696
1290 backend = 0; 1697 backend = 0;
1291} 1698}
1292 1699
1293#if EV_USE_INOTIFY 1700#if EV_USE_INOTIFY
1294void inline_size infy_fork (EV_P); 1701inline_size void infy_fork (EV_P);
1295#endif 1702#endif
1296 1703
1297void inline_size 1704inline_size void
1298loop_fork (EV_P) 1705loop_fork (EV_P)
1299{ 1706{
1300#if EV_USE_PORT 1707#if EV_USE_PORT
1301 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 1708 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
1302#endif 1709#endif
… …
1308#endif 1715#endif
1309#if EV_USE_INOTIFY 1716#if EV_USE_INOTIFY
1310 infy_fork (EV_A); 1717 infy_fork (EV_A);
1311#endif 1718#endif
1312 1719
1313 if (ev_is_active (&pipeev)) 1720 if (ev_is_active (&pipe_w))
1314 { 1721 {
1315 /* this "locks" the handlers against writing to the pipe */ 1722 /* this "locks" the handlers against writing to the pipe */
1316 /* while we modify the fd vars */ 1723 /* while we modify the fd vars */
1317 gotsig = 1; 1724 sig_pending = 1;
1318#if EV_ASYNC_ENABLE 1725#if EV_ASYNC_ENABLE
1319 gotasync = 1; 1726 async_pending = 1;
1320#endif 1727#endif
1321 1728
1322 ev_ref (EV_A); 1729 ev_ref (EV_A);
1323 ev_io_stop (EV_A_ &pipeev); 1730 ev_io_stop (EV_A_ &pipe_w);
1324 1731
1325#if EV_USE_EVENTFD 1732#if EV_USE_EVENTFD
1326 if (evfd >= 0) 1733 if (evfd >= 0)
1327 close (evfd); 1734 close (evfd);
1328#endif 1735#endif
1329 1736
1330 if (evpipe [0] >= 0) 1737 if (evpipe [0] >= 0)
1331 { 1738 {
1332 close (evpipe [0]); 1739 EV_WIN32_CLOSE_FD (evpipe [0]);
1333 close (evpipe [1]); 1740 EV_WIN32_CLOSE_FD (evpipe [1]);
1334 } 1741 }
1335 1742
1336 evpipe_init (EV_A); 1743 evpipe_init (EV_A);
1337 /* now iterate over everything, in case we missed something */ 1744 /* now iterate over everything, in case we missed something */
1338 pipecb (EV_A_ &pipeev, EV_READ); 1745 pipecb (EV_A_ &pipe_w, EV_READ);
1339 } 1746 }
1340 1747
1341 postfork = 0; 1748 postfork = 0;
1342} 1749}
1343 1750
1344#if EV_MULTIPLICITY 1751#if EV_MULTIPLICITY
1752
1345struct ev_loop * 1753struct ev_loop *
1346ev_loop_new (unsigned int flags) 1754ev_loop_new (unsigned int flags)
1347{ 1755{
1348 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 1756 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1349 1757
1350 memset (loop, 0, sizeof (struct ev_loop)); 1758 memset (EV_A, 0, sizeof (struct ev_loop));
1351
1352 loop_init (EV_A_ flags); 1759 loop_init (EV_A_ flags);
1353 1760
1354 if (ev_backend (EV_A)) 1761 if (ev_backend (EV_A))
1355 return loop; 1762 return EV_A;
1356 1763
1357 return 0; 1764 return 0;
1358} 1765}
1359 1766
1360void 1767void
… …
1367void 1774void
1368ev_loop_fork (EV_P) 1775ev_loop_fork (EV_P)
1369{ 1776{
1370 postfork = 1; /* must be in line with ev_default_fork */ 1777 postfork = 1; /* must be in line with ev_default_fork */
1371} 1778}
1779#endif /* multiplicity */
1372 1780
1781#if EV_VERIFY
1782static void noinline
1783verify_watcher (EV_P_ W w)
1784{
1785 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1786
1787 if (w->pending)
1788 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1789}
1790
1791static void noinline
1792verify_heap (EV_P_ ANHE *heap, int N)
1793{
1794 int i;
1795
1796 for (i = HEAP0; i < N + HEAP0; ++i)
1797 {
1798 assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i));
1799 assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i])));
1800 assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i]))));
1801
1802 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1803 }
1804}
1805
1806static void noinline
1807array_verify (EV_P_ W *ws, int cnt)
1808{
1809 while (cnt--)
1810 {
1811 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1812 verify_watcher (EV_A_ ws [cnt]);
1813 }
1814}
1815#endif
1816
1817#if EV_MINIMAL < 2
1818void
1819ev_loop_verify (EV_P)
1820{
1821#if EV_VERIFY
1822 int i;
1823 WL w;
1824
1825 assert (activecnt >= -1);
1826
1827 assert (fdchangemax >= fdchangecnt);
1828 for (i = 0; i < fdchangecnt; ++i)
1829 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
1830
1831 assert (anfdmax >= 0);
1832 for (i = 0; i < anfdmax; ++i)
1833 for (w = anfds [i].head; w; w = w->next)
1834 {
1835 verify_watcher (EV_A_ (W)w);
1836 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
1837 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
1838 }
1839
1840 assert (timermax >= timercnt);
1841 verify_heap (EV_A_ timers, timercnt);
1842
1843#if EV_PERIODIC_ENABLE
1844 assert (periodicmax >= periodiccnt);
1845 verify_heap (EV_A_ periodics, periodiccnt);
1846#endif
1847
1848 for (i = NUMPRI; i--; )
1849 {
1850 assert (pendingmax [i] >= pendingcnt [i]);
1851#if EV_IDLE_ENABLE
1852 assert (idleall >= 0);
1853 assert (idlemax [i] >= idlecnt [i]);
1854 array_verify (EV_A_ (W *)idles [i], idlecnt [i]);
1855#endif
1856 }
1857
1858#if EV_FORK_ENABLE
1859 assert (forkmax >= forkcnt);
1860 array_verify (EV_A_ (W *)forks, forkcnt);
1861#endif
1862
1863#if EV_ASYNC_ENABLE
1864 assert (asyncmax >= asynccnt);
1865 array_verify (EV_A_ (W *)asyncs, asynccnt);
1866#endif
1867
1868 assert (preparemax >= preparecnt);
1869 array_verify (EV_A_ (W *)prepares, preparecnt);
1870
1871 assert (checkmax >= checkcnt);
1872 array_verify (EV_A_ (W *)checks, checkcnt);
1873
1874# if 0
1875 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
1876 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
1877# endif
1878#endif
1879}
1373#endif 1880#endif
1374 1881
1375#if EV_MULTIPLICITY 1882#if EV_MULTIPLICITY
1376struct ev_loop * 1883struct ev_loop *
1377ev_default_loop_init (unsigned int flags) 1884ev_default_loop_init (unsigned int flags)
… …
1381#endif 1888#endif
1382{ 1889{
1383 if (!ev_default_loop_ptr) 1890 if (!ev_default_loop_ptr)
1384 { 1891 {
1385#if EV_MULTIPLICITY 1892#if EV_MULTIPLICITY
1386 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; 1893 EV_P = ev_default_loop_ptr = &default_loop_struct;
1387#else 1894#else
1388 ev_default_loop_ptr = 1; 1895 ev_default_loop_ptr = 1;
1389#endif 1896#endif
1390 1897
1391 loop_init (EV_A_ flags); 1898 loop_init (EV_A_ flags);
… …
1408 1915
1409void 1916void
1410ev_default_destroy (void) 1917ev_default_destroy (void)
1411{ 1918{
1412#if EV_MULTIPLICITY 1919#if EV_MULTIPLICITY
1413 struct ev_loop *loop = ev_default_loop_ptr; 1920 EV_P = ev_default_loop_ptr;
1414#endif 1921#endif
1922
1923 ev_default_loop_ptr = 0;
1415 1924
1416#ifndef _WIN32 1925#ifndef _WIN32
1417 ev_ref (EV_A); /* child watcher */ 1926 ev_ref (EV_A); /* child watcher */
1418 ev_signal_stop (EV_A_ &childev); 1927 ev_signal_stop (EV_A_ &childev);
1419#endif 1928#endif
… …
1423 1932
1424void 1933void
1425ev_default_fork (void) 1934ev_default_fork (void)
1426{ 1935{
1427#if EV_MULTIPLICITY 1936#if EV_MULTIPLICITY
1428 struct ev_loop *loop = ev_default_loop_ptr; 1937 EV_P = ev_default_loop_ptr;
1429#endif 1938#endif
1430 1939
1431 if (backend)
1432 postfork = 1; /* must be in line with ev_loop_fork */ 1940 postfork = 1; /* must be in line with ev_loop_fork */
1433} 1941}
1434 1942
1435/*****************************************************************************/ 1943/*****************************************************************************/
1436 1944
1437void 1945void
1438ev_invoke (EV_P_ void *w, int revents) 1946ev_invoke (EV_P_ void *w, int revents)
1439{ 1947{
1440 EV_CB_INVOKE ((W)w, revents); 1948 EV_CB_INVOKE ((W)w, revents);
1441} 1949}
1442 1950
1443void inline_speed 1951unsigned int
1444call_pending (EV_P) 1952ev_pending_count (EV_P)
1953{
1954 int pri;
1955 unsigned int count = 0;
1956
1957 for (pri = NUMPRI; pri--; )
1958 count += pendingcnt [pri];
1959
1960 return count;
1961}
1962
1963void noinline
1964ev_invoke_pending (EV_P)
1445{ 1965{
1446 int pri; 1966 int pri;
1447 1967
1448 for (pri = NUMPRI; pri--; ) 1968 for (pri = NUMPRI; pri--; )
1449 while (pendingcnt [pri]) 1969 while (pendingcnt [pri])
1450 { 1970 {
1451 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 1971 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1452 1972
1453 if (expect_true (p->w))
1454 {
1455 /*assert (("non-pending watcher on pending list", p->w->pending));*/ 1973 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
1974 /* ^ this is no longer true, as pending_w could be here */
1456 1975
1457 p->w->pending = 0; 1976 p->w->pending = 0;
1458 EV_CB_INVOKE (p->w, p->events); 1977 EV_CB_INVOKE (p->w, p->events);
1459 } 1978 EV_FREQUENT_CHECK;
1460 } 1979 }
1461} 1980}
1462 1981
1463void inline_size
1464timers_reify (EV_P)
1465{
1466 while (timercnt && ev_at (timers [1]) <= mn_now)
1467 {
1468 ev_timer *w = (ev_timer *)timers [1];
1469
1470 /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
1471
1472 /* first reschedule or stop timer */
1473 if (w->repeat)
1474 {
1475 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1476
1477 ev_at (w) += w->repeat;
1478 if (ev_at (w) < mn_now)
1479 ev_at (w) = mn_now;
1480
1481 downheap (timers, timercnt, 1);
1482 }
1483 else
1484 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1485
1486 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
1487 }
1488}
1489
1490#if EV_PERIODIC_ENABLE
1491void inline_size
1492periodics_reify (EV_P)
1493{
1494 while (periodiccnt && ev_at (periodics [1]) <= ev_rt_now)
1495 {
1496 ev_periodic *w = (ev_periodic *)periodics [1];
1497
1498 /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
1499
1500 /* first reschedule or stop timer */
1501 if (w->reschedule_cb)
1502 {
1503 ev_at (w) = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON);
1504 assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) > ev_rt_now));
1505 downheap (periodics, periodiccnt, 1);
1506 }
1507 else if (w->interval)
1508 {
1509 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1510 if (ev_at (w) - ev_rt_now <= TIME_EPSILON) ev_at (w) += w->interval;
1511 assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ev_at (w) > ev_rt_now));
1512 downheap (periodics, periodiccnt, 1);
1513 }
1514 else
1515 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1516
1517 ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
1518 }
1519}
1520
1521static void noinline
1522periodics_reschedule (EV_P)
1523{
1524 int i;
1525
1526 /* adjust periodics after time jump */
1527 for (i = 0; i < periodiccnt; ++i)
1528 {
1529 ev_periodic *w = (ev_periodic *)periodics [i];
1530
1531 if (w->reschedule_cb)
1532 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1533 else if (w->interval)
1534 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1535 }
1536
1537 /* now rebuild the heap */
1538 for (i = periodiccnt >> 1; i--; )
1539 downheap (periodics, periodiccnt, i);
1540}
1541#endif
1542
1543#if EV_IDLE_ENABLE 1982#if EV_IDLE_ENABLE
1544void inline_size 1983/* make idle watchers pending. this handles the "call-idle */
1984/* only when higher priorities are idle" logic */
1985inline_size void
1545idle_reify (EV_P) 1986idle_reify (EV_P)
1546{ 1987{
1547 if (expect_false (idleall)) 1988 if (expect_false (idleall))
1548 { 1989 {
1549 int pri; 1990 int pri;
… …
1561 } 2002 }
1562 } 2003 }
1563} 2004}
1564#endif 2005#endif
1565 2006
1566void inline_speed 2007/* make timers pending */
2008inline_size void
2009timers_reify (EV_P)
2010{
2011 EV_FREQUENT_CHECK;
2012
2013 if (timercnt && ANHE_at (timers [HEAP0]) < mn_now)
2014 {
2015 do
2016 {
2017 ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]);
2018
2019 /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/
2020
2021 /* first reschedule or stop timer */
2022 if (w->repeat)
2023 {
2024 ev_at (w) += w->repeat;
2025 if (ev_at (w) < mn_now)
2026 ev_at (w) = mn_now;
2027
2028 assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.));
2029
2030 ANHE_at_cache (timers [HEAP0]);
2031 downheap (timers, timercnt, HEAP0);
2032 }
2033 else
2034 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
2035
2036 EV_FREQUENT_CHECK;
2037 feed_reverse (EV_A_ (W)w);
2038 }
2039 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
2040
2041 feed_reverse_done (EV_A_ EV_TIMEOUT);
2042 }
2043}
2044
2045#if EV_PERIODIC_ENABLE
2046/* make periodics pending */
2047inline_size void
2048periodics_reify (EV_P)
2049{
2050 EV_FREQUENT_CHECK;
2051
2052 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2053 {
2054 int feed_count = 0;
2055
2056 do
2057 {
2058 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2059
2060 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
2061
2062 /* first reschedule or stop timer */
2063 if (w->reschedule_cb)
2064 {
2065 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2066
2067 assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now));
2068
2069 ANHE_at_cache (periodics [HEAP0]);
2070 downheap (periodics, periodiccnt, HEAP0);
2071 }
2072 else if (w->interval)
2073 {
2074 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2075 /* if next trigger time is not sufficiently in the future, put it there */
2076 /* this might happen because of floating point inexactness */
2077 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
2078 {
2079 ev_at (w) += w->interval;
2080
2081 /* if interval is unreasonably low we might still have a time in the past */
2082 /* so correct this. this will make the periodic very inexact, but the user */
2083 /* has effectively asked to get triggered more often than possible */
2084 if (ev_at (w) < ev_rt_now)
2085 ev_at (w) = ev_rt_now;
2086 }
2087
2088 ANHE_at_cache (periodics [HEAP0]);
2089 downheap (periodics, periodiccnt, HEAP0);
2090 }
2091 else
2092 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
2093
2094 EV_FREQUENT_CHECK;
2095 feed_reverse (EV_A_ (W)w);
2096 }
2097 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now);
2098
2099 feed_reverse_done (EV_A_ EV_PERIODIC);
2100 }
2101}
2102
2103/* simply recalculate all periodics */
2104/* TODO: maybe ensure that at leats one event happens when jumping forward? */
2105static void noinline
2106periodics_reschedule (EV_P)
2107{
2108 int i;
2109
2110 /* adjust periodics after time jump */
2111 for (i = HEAP0; i < periodiccnt + HEAP0; ++i)
2112 {
2113 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
2114
2115 if (w->reschedule_cb)
2116 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2117 else if (w->interval)
2118 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2119
2120 ANHE_at_cache (periodics [i]);
2121 }
2122
2123 reheap (periodics, periodiccnt);
2124}
2125#endif
2126
2127/* adjust all timers by a given offset */
2128static void noinline
2129timers_reschedule (EV_P_ ev_tstamp adjust)
2130{
2131 int i;
2132
2133 for (i = 0; i < timercnt; ++i)
2134 {
2135 ANHE *he = timers + i + HEAP0;
2136 ANHE_w (*he)->at += adjust;
2137 ANHE_at_cache (*he);
2138 }
2139}
2140
2141/* fetch new monotonic and realtime times from the kernel */
2142/* also detetc if there was a timejump, and act accordingly */
2143inline_speed void
1567time_update (EV_P_ ev_tstamp max_block) 2144time_update (EV_P_ ev_tstamp max_block)
1568{ 2145{
1569 int i;
1570
1571#if EV_USE_MONOTONIC 2146#if EV_USE_MONOTONIC
1572 if (expect_true (have_monotonic)) 2147 if (expect_true (have_monotonic))
1573 { 2148 {
2149 int i;
1574 ev_tstamp odiff = rtmn_diff; 2150 ev_tstamp odiff = rtmn_diff;
1575 2151
1576 mn_now = get_clock (); 2152 mn_now = get_clock ();
1577 2153
1578 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ 2154 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
… …
1596 */ 2172 */
1597 for (i = 4; --i; ) 2173 for (i = 4; --i; )
1598 { 2174 {
1599 rtmn_diff = ev_rt_now - mn_now; 2175 rtmn_diff = ev_rt_now - mn_now;
1600 2176
1601 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) 2177 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP))
1602 return; /* all is well */ 2178 return; /* all is well */
1603 2179
1604 ev_rt_now = ev_time (); 2180 ev_rt_now = ev_time ();
1605 mn_now = get_clock (); 2181 mn_now = get_clock ();
1606 now_floor = mn_now; 2182 now_floor = mn_now;
1607 } 2183 }
1608 2184
2185 /* no timer adjustment, as the monotonic clock doesn't jump */
2186 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1609# if EV_PERIODIC_ENABLE 2187# if EV_PERIODIC_ENABLE
1610 periodics_reschedule (EV_A); 2188 periodics_reschedule (EV_A);
1611# endif 2189# endif
1612 /* no timer adjustment, as the monotonic clock doesn't jump */
1613 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1614 } 2190 }
1615 else 2191 else
1616#endif 2192#endif
1617 { 2193 {
1618 ev_rt_now = ev_time (); 2194 ev_rt_now = ev_time ();
1619 2195
1620 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) 2196 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
1621 { 2197 {
2198 /* adjust timers. this is easy, as the offset is the same for all of them */
2199 timers_reschedule (EV_A_ ev_rt_now - mn_now);
1622#if EV_PERIODIC_ENABLE 2200#if EV_PERIODIC_ENABLE
1623 periodics_reschedule (EV_A); 2201 periodics_reschedule (EV_A);
1624#endif 2202#endif
1625 /* adjust timers. this is easy, as the offset is the same for all of them */
1626 for (i = 1; i <= timercnt; ++i)
1627 ev_at (timers [i]) += ev_rt_now - mn_now;
1628 } 2203 }
1629 2204
1630 mn_now = ev_rt_now; 2205 mn_now = ev_rt_now;
1631 } 2206 }
1632} 2207}
1633 2208
1634void 2209void
1635ev_ref (EV_P)
1636{
1637 ++activecnt;
1638}
1639
1640void
1641ev_unref (EV_P)
1642{
1643 --activecnt;
1644}
1645
1646static int loop_done;
1647
1648void
1649ev_loop (EV_P_ int flags) 2210ev_loop (EV_P_ int flags)
1650{ 2211{
2212#if EV_MINIMAL < 2
2213 ++loop_depth;
2214#endif
2215
2216 assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE));
2217
1651 loop_done = EVUNLOOP_CANCEL; 2218 loop_done = EVUNLOOP_CANCEL;
1652 2219
1653 call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ 2220 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
1654 2221
1655 do 2222 do
1656 { 2223 {
2224#if EV_VERIFY >= 2
2225 ev_loop_verify (EV_A);
2226#endif
2227
1657#ifndef _WIN32 2228#ifndef _WIN32
1658 if (expect_false (curpid)) /* penalise the forking check even more */ 2229 if (expect_false (curpid)) /* penalise the forking check even more */
1659 if (expect_false (getpid () != curpid)) 2230 if (expect_false (getpid () != curpid))
1660 { 2231 {
1661 curpid = getpid (); 2232 curpid = getpid ();
… …
1667 /* we might have forked, so queue fork handlers */ 2238 /* we might have forked, so queue fork handlers */
1668 if (expect_false (postfork)) 2239 if (expect_false (postfork))
1669 if (forkcnt) 2240 if (forkcnt)
1670 { 2241 {
1671 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2242 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
1672 call_pending (EV_A); 2243 EV_INVOKE_PENDING;
1673 } 2244 }
1674#endif 2245#endif
1675 2246
1676 /* queue prepare watchers (and execute them) */ 2247 /* queue prepare watchers (and execute them) */
1677 if (expect_false (preparecnt)) 2248 if (expect_false (preparecnt))
1678 { 2249 {
1679 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 2250 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1680 call_pending (EV_A); 2251 EV_INVOKE_PENDING;
1681 } 2252 }
1682 2253
1683 if (expect_false (!activecnt)) 2254 if (expect_false (loop_done))
1684 break; 2255 break;
1685 2256
1686 /* we might have forked, so reify kernel state if necessary */ 2257 /* we might have forked, so reify kernel state if necessary */
1687 if (expect_false (postfork)) 2258 if (expect_false (postfork))
1688 loop_fork (EV_A); 2259 loop_fork (EV_A);
… …
1695 ev_tstamp waittime = 0.; 2266 ev_tstamp waittime = 0.;
1696 ev_tstamp sleeptime = 0.; 2267 ev_tstamp sleeptime = 0.;
1697 2268
1698 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 2269 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))
1699 { 2270 {
2271 /* remember old timestamp for io_blocktime calculation */
2272 ev_tstamp prev_mn_now = mn_now;
2273
1700 /* update time to cancel out callback processing overhead */ 2274 /* update time to cancel out callback processing overhead */
1701 time_update (EV_A_ 1e100); 2275 time_update (EV_A_ 1e100);
1702 2276
1703 waittime = MAX_BLOCKTIME; 2277 waittime = MAX_BLOCKTIME;
1704 2278
1705 if (timercnt) 2279 if (timercnt)
1706 { 2280 {
1707 ev_tstamp to = ev_at (timers [1]) - mn_now + backend_fudge; 2281 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge;
1708 if (waittime > to) waittime = to; 2282 if (waittime > to) waittime = to;
1709 } 2283 }
1710 2284
1711#if EV_PERIODIC_ENABLE 2285#if EV_PERIODIC_ENABLE
1712 if (periodiccnt) 2286 if (periodiccnt)
1713 { 2287 {
1714 ev_tstamp to = ev_at (periodics [1]) - ev_rt_now + backend_fudge; 2288 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge;
1715 if (waittime > to) waittime = to; 2289 if (waittime > to) waittime = to;
1716 } 2290 }
1717#endif 2291#endif
1718 2292
2293 /* don't let timeouts decrease the waittime below timeout_blocktime */
1719 if (expect_false (waittime < timeout_blocktime)) 2294 if (expect_false (waittime < timeout_blocktime))
1720 waittime = timeout_blocktime; 2295 waittime = timeout_blocktime;
1721 2296
1722 sleeptime = waittime - backend_fudge; 2297 /* extra check because io_blocktime is commonly 0 */
1723
1724 if (expect_true (sleeptime > io_blocktime)) 2298 if (expect_false (io_blocktime))
1725 sleeptime = io_blocktime;
1726
1727 if (sleeptime)
1728 { 2299 {
2300 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2301
2302 if (sleeptime > waittime - backend_fudge)
2303 sleeptime = waittime - backend_fudge;
2304
2305 if (expect_true (sleeptime > 0.))
2306 {
1729 ev_sleep (sleeptime); 2307 ev_sleep (sleeptime);
1730 waittime -= sleeptime; 2308 waittime -= sleeptime;
2309 }
1731 } 2310 }
1732 } 2311 }
1733 2312
2313#if EV_MINIMAL < 2
1734 ++loop_count; 2314 ++loop_count;
2315#endif
2316 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */
1735 backend_poll (EV_A_ waittime); 2317 backend_poll (EV_A_ waittime);
2318 assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */
1736 2319
1737 /* update ev_rt_now, do magic */ 2320 /* update ev_rt_now, do magic */
1738 time_update (EV_A_ waittime + sleeptime); 2321 time_update (EV_A_ waittime + sleeptime);
1739 } 2322 }
1740 2323
… …
1751 2334
1752 /* queue check watchers, to be executed first */ 2335 /* queue check watchers, to be executed first */
1753 if (expect_false (checkcnt)) 2336 if (expect_false (checkcnt))
1754 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 2337 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1755 2338
1756 call_pending (EV_A); 2339 EV_INVOKE_PENDING;
1757 } 2340 }
1758 while (expect_true ( 2341 while (expect_true (
1759 activecnt 2342 activecnt
1760 && !loop_done 2343 && !loop_done
1761 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 2344 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK))
1762 )); 2345 ));
1763 2346
1764 if (loop_done == EVUNLOOP_ONE) 2347 if (loop_done == EVUNLOOP_ONE)
1765 loop_done = EVUNLOOP_CANCEL; 2348 loop_done = EVUNLOOP_CANCEL;
2349
2350#if EV_MINIMAL < 2
2351 --loop_depth;
2352#endif
1766} 2353}
1767 2354
1768void 2355void
1769ev_unloop (EV_P_ int how) 2356ev_unloop (EV_P_ int how)
1770{ 2357{
1771 loop_done = how; 2358 loop_done = how;
1772} 2359}
1773 2360
2361void
2362ev_ref (EV_P)
2363{
2364 ++activecnt;
2365}
2366
2367void
2368ev_unref (EV_P)
2369{
2370 --activecnt;
2371}
2372
2373void
2374ev_now_update (EV_P)
2375{
2376 time_update (EV_A_ 1e100);
2377}
2378
2379void
2380ev_suspend (EV_P)
2381{
2382 ev_now_update (EV_A);
2383}
2384
2385void
2386ev_resume (EV_P)
2387{
2388 ev_tstamp mn_prev = mn_now;
2389
2390 ev_now_update (EV_A);
2391 timers_reschedule (EV_A_ mn_now - mn_prev);
2392#if EV_PERIODIC_ENABLE
2393 /* TODO: really do this? */
2394 periodics_reschedule (EV_A);
2395#endif
2396}
2397
1774/*****************************************************************************/ 2398/*****************************************************************************/
2399/* singly-linked list management, used when the expected list length is short */
1775 2400
1776void inline_size 2401inline_size void
1777wlist_add (WL *head, WL elem) 2402wlist_add (WL *head, WL elem)
1778{ 2403{
1779 elem->next = *head; 2404 elem->next = *head;
1780 *head = elem; 2405 *head = elem;
1781} 2406}
1782 2407
1783void inline_size 2408inline_size void
1784wlist_del (WL *head, WL elem) 2409wlist_del (WL *head, WL elem)
1785{ 2410{
1786 while (*head) 2411 while (*head)
1787 { 2412 {
1788 if (*head == elem) 2413 if (expect_true (*head == elem))
1789 { 2414 {
1790 *head = elem->next; 2415 *head = elem->next;
1791 return; 2416 break;
1792 } 2417 }
1793 2418
1794 head = &(*head)->next; 2419 head = &(*head)->next;
1795 } 2420 }
1796} 2421}
1797 2422
1798void inline_speed 2423/* internal, faster, version of ev_clear_pending */
2424inline_speed void
1799clear_pending (EV_P_ W w) 2425clear_pending (EV_P_ W w)
1800{ 2426{
1801 if (w->pending) 2427 if (w->pending)
1802 { 2428 {
1803 pendings [ABSPRI (w)][w->pending - 1].w = 0; 2429 pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w;
1804 w->pending = 0; 2430 w->pending = 0;
1805 } 2431 }
1806} 2432}
1807 2433
1808int 2434int
… …
1812 int pending = w_->pending; 2438 int pending = w_->pending;
1813 2439
1814 if (expect_true (pending)) 2440 if (expect_true (pending))
1815 { 2441 {
1816 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; 2442 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
2443 p->w = (W)&pending_w;
1817 w_->pending = 0; 2444 w_->pending = 0;
1818 p->w = 0;
1819 return p->events; 2445 return p->events;
1820 } 2446 }
1821 else 2447 else
1822 return 0; 2448 return 0;
1823} 2449}
1824 2450
1825void inline_size 2451inline_size void
1826pri_adjust (EV_P_ W w) 2452pri_adjust (EV_P_ W w)
1827{ 2453{
1828 int pri = w->priority; 2454 int pri = ev_priority (w);
1829 pri = pri < EV_MINPRI ? EV_MINPRI : pri; 2455 pri = pri < EV_MINPRI ? EV_MINPRI : pri;
1830 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; 2456 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
1831 w->priority = pri; 2457 ev_set_priority (w, pri);
1832} 2458}
1833 2459
1834void inline_speed 2460inline_speed void
1835ev_start (EV_P_ W w, int active) 2461ev_start (EV_P_ W w, int active)
1836{ 2462{
1837 pri_adjust (EV_A_ w); 2463 pri_adjust (EV_A_ w);
1838 w->active = active; 2464 w->active = active;
1839 ev_ref (EV_A); 2465 ev_ref (EV_A);
1840} 2466}
1841 2467
1842void inline_size 2468inline_size void
1843ev_stop (EV_P_ W w) 2469ev_stop (EV_P_ W w)
1844{ 2470{
1845 ev_unref (EV_A); 2471 ev_unref (EV_A);
1846 w->active = 0; 2472 w->active = 0;
1847} 2473}
… …
1854 int fd = w->fd; 2480 int fd = w->fd;
1855 2481
1856 if (expect_false (ev_is_active (w))) 2482 if (expect_false (ev_is_active (w)))
1857 return; 2483 return;
1858 2484
1859 assert (("ev_io_start called with negative fd", fd >= 0)); 2485 assert (("libev: ev_io_start called with negative fd", fd >= 0));
2486 assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2487
2488 EV_FREQUENT_CHECK;
1860 2489
1861 ev_start (EV_A_ (W)w, 1); 2490 ev_start (EV_A_ (W)w, 1);
1862 array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); 2491 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
1863 wlist_add (&anfds[fd].head, (WL)w); 2492 wlist_add (&anfds[fd].head, (WL)w);
1864 2493
1865 fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); 2494 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
1866 w->events &= ~EV_IOFDSET; 2495 w->events &= ~EV__IOFDSET;
2496
2497 EV_FREQUENT_CHECK;
1867} 2498}
1868 2499
1869void noinline 2500void noinline
1870ev_io_stop (EV_P_ ev_io *w) 2501ev_io_stop (EV_P_ ev_io *w)
1871{ 2502{
1872 clear_pending (EV_A_ (W)w); 2503 clear_pending (EV_A_ (W)w);
1873 if (expect_false (!ev_is_active (w))) 2504 if (expect_false (!ev_is_active (w)))
1874 return; 2505 return;
1875 2506
1876 assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); 2507 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
2508
2509 EV_FREQUENT_CHECK;
1877 2510
1878 wlist_del (&anfds[w->fd].head, (WL)w); 2511 wlist_del (&anfds[w->fd].head, (WL)w);
1879 ev_stop (EV_A_ (W)w); 2512 ev_stop (EV_A_ (W)w);
1880 2513
1881 fd_change (EV_A_ w->fd, 1); 2514 fd_change (EV_A_ w->fd, 1);
2515
2516 EV_FREQUENT_CHECK;
1882} 2517}
1883 2518
1884void noinline 2519void noinline
1885ev_timer_start (EV_P_ ev_timer *w) 2520ev_timer_start (EV_P_ ev_timer *w)
1886{ 2521{
1887 if (expect_false (ev_is_active (w))) 2522 if (expect_false (ev_is_active (w)))
1888 return; 2523 return;
1889 2524
1890 ev_at (w) += mn_now; 2525 ev_at (w) += mn_now;
1891 2526
1892 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 2527 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1893 2528
2529 EV_FREQUENT_CHECK;
2530
2531 ++timercnt;
1894 ev_start (EV_A_ (W)w, ++timercnt); 2532 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
1895 array_needsize (WT, timers, timermax, timercnt + 1, EMPTY2); 2533 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2);
1896 timers [timercnt] = (WT)w; 2534 ANHE_w (timers [ev_active (w)]) = (WT)w;
2535 ANHE_at_cache (timers [ev_active (w)]);
1897 upheap (timers, timercnt); 2536 upheap (timers, ev_active (w));
1898 2537
2538 EV_FREQUENT_CHECK;
2539
1899 /*assert (("internal timer heap corruption", timers [((W)w)->active] == w));*/ 2540 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
1900} 2541}
1901 2542
1902void noinline 2543void noinline
1903ev_timer_stop (EV_P_ ev_timer *w) 2544ev_timer_stop (EV_P_ ev_timer *w)
1904{ 2545{
1905 clear_pending (EV_A_ (W)w); 2546 clear_pending (EV_A_ (W)w);
1906 if (expect_false (!ev_is_active (w))) 2547 if (expect_false (!ev_is_active (w)))
1907 return; 2548 return;
1908 2549
1909 assert (("internal timer heap corruption", timers [((W)w)->active] == (WT)w)); 2550 EV_FREQUENT_CHECK;
1910 2551
1911 { 2552 {
1912 int active = ((W)w)->active; 2553 int active = ev_active (w);
1913 2554
2555 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
2556
2557 --timercnt;
2558
1914 if (expect_true (active < timercnt)) 2559 if (expect_true (active < timercnt + HEAP0))
1915 { 2560 {
1916 timers [active] = timers [timercnt]; 2561 timers [active] = timers [timercnt + HEAP0];
1917 adjustheap (timers, timercnt, active); 2562 adjustheap (timers, timercnt, active);
1918 } 2563 }
1919
1920 --timercnt;
1921 } 2564 }
2565
2566 EV_FREQUENT_CHECK;
1922 2567
1923 ev_at (w) -= mn_now; 2568 ev_at (w) -= mn_now;
1924 2569
1925 ev_stop (EV_A_ (W)w); 2570 ev_stop (EV_A_ (W)w);
1926} 2571}
1927 2572
1928void noinline 2573void noinline
1929ev_timer_again (EV_P_ ev_timer *w) 2574ev_timer_again (EV_P_ ev_timer *w)
1930{ 2575{
2576 EV_FREQUENT_CHECK;
2577
1931 if (ev_is_active (w)) 2578 if (ev_is_active (w))
1932 { 2579 {
1933 if (w->repeat) 2580 if (w->repeat)
1934 { 2581 {
1935 ev_at (w) = mn_now + w->repeat; 2582 ev_at (w) = mn_now + w->repeat;
2583 ANHE_at_cache (timers [ev_active (w)]);
1936 adjustheap (timers, timercnt, ((W)w)->active); 2584 adjustheap (timers, timercnt, ev_active (w));
1937 } 2585 }
1938 else 2586 else
1939 ev_timer_stop (EV_A_ w); 2587 ev_timer_stop (EV_A_ w);
1940 } 2588 }
1941 else if (w->repeat) 2589 else if (w->repeat)
1942 { 2590 {
1943 w->at = w->repeat; 2591 ev_at (w) = w->repeat;
1944 ev_timer_start (EV_A_ w); 2592 ev_timer_start (EV_A_ w);
1945 } 2593 }
2594
2595 EV_FREQUENT_CHECK;
2596}
2597
2598ev_tstamp
2599ev_timer_remaining (EV_P_ ev_timer *w)
2600{
2601 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
1946} 2602}
1947 2603
1948#if EV_PERIODIC_ENABLE 2604#if EV_PERIODIC_ENABLE
1949void noinline 2605void noinline
1950ev_periodic_start (EV_P_ ev_periodic *w) 2606ev_periodic_start (EV_P_ ev_periodic *w)
… …
1954 2610
1955 if (w->reschedule_cb) 2611 if (w->reschedule_cb)
1956 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2612 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1957 else if (w->interval) 2613 else if (w->interval)
1958 { 2614 {
1959 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); 2615 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
1960 /* this formula differs from the one in periodic_reify because we do not always round up */ 2616 /* this formula differs from the one in periodic_reify because we do not always round up */
1961 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2617 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1962 } 2618 }
1963 else 2619 else
1964 ev_at (w) = w->offset; 2620 ev_at (w) = w->offset;
1965 2621
2622 EV_FREQUENT_CHECK;
2623
2624 ++periodiccnt;
1966 ev_start (EV_A_ (W)w, ++periodiccnt); 2625 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
1967 array_needsize (WT, periodics, periodicmax, periodiccnt + 1, EMPTY2); 2626 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2);
1968 periodics [periodiccnt] = (WT)w; 2627 ANHE_w (periodics [ev_active (w)]) = (WT)w;
1969 upheap (periodics, periodiccnt); 2628 ANHE_at_cache (periodics [ev_active (w)]);
2629 upheap (periodics, ev_active (w));
1970 2630
2631 EV_FREQUENT_CHECK;
2632
1971 /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ 2633 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
1972} 2634}
1973 2635
1974void noinline 2636void noinline
1975ev_periodic_stop (EV_P_ ev_periodic *w) 2637ev_periodic_stop (EV_P_ ev_periodic *w)
1976{ 2638{
1977 clear_pending (EV_A_ (W)w); 2639 clear_pending (EV_A_ (W)w);
1978 if (expect_false (!ev_is_active (w))) 2640 if (expect_false (!ev_is_active (w)))
1979 return; 2641 return;
1980 2642
1981 assert (("internal periodic heap corruption", periodics [((W)w)->active] == (WT)w)); 2643 EV_FREQUENT_CHECK;
1982 2644
1983 { 2645 {
1984 int active = ((W)w)->active; 2646 int active = ev_active (w);
1985 2647
2648 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
2649
2650 --periodiccnt;
2651
1986 if (expect_true (active < periodiccnt)) 2652 if (expect_true (active < periodiccnt + HEAP0))
1987 { 2653 {
1988 periodics [active] = periodics [periodiccnt]; 2654 periodics [active] = periodics [periodiccnt + HEAP0];
1989 adjustheap (periodics, periodiccnt, active); 2655 adjustheap (periodics, periodiccnt, active);
1990 } 2656 }
1991
1992 --periodiccnt;
1993 } 2657 }
2658
2659 EV_FREQUENT_CHECK;
1994 2660
1995 ev_stop (EV_A_ (W)w); 2661 ev_stop (EV_A_ (W)w);
1996} 2662}
1997 2663
1998void noinline 2664void noinline
… …
2009#endif 2675#endif
2010 2676
2011void noinline 2677void noinline
2012ev_signal_start (EV_P_ ev_signal *w) 2678ev_signal_start (EV_P_ ev_signal *w)
2013{ 2679{
2014#if EV_MULTIPLICITY
2015 assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2016#endif
2017 if (expect_false (ev_is_active (w))) 2680 if (expect_false (ev_is_active (w)))
2018 return; 2681 return;
2019 2682
2020 assert (("ev_signal_start called with illegal signal number", w->signum > 0)); 2683 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
2021 2684
2022 evpipe_init (EV_A); 2685#if EV_MULTIPLICITY
2686 assert (("libev: a signal must not be attached to two different loops",
2687 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
2023 2688
2689 signals [w->signum - 1].loop = EV_A;
2690#endif
2691
2692 EV_FREQUENT_CHECK;
2693
2694#if EV_USE_SIGNALFD
2695 if (sigfd == -2)
2024 { 2696 {
2025#ifndef _WIN32 2697 sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC);
2026 sigset_t full, prev; 2698 if (sigfd < 0 && errno == EINVAL)
2027 sigfillset (&full); 2699 sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */
2028 sigprocmask (SIG_SETMASK, &full, &prev);
2029#endif
2030 2700
2031 array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); 2701 if (sigfd >= 0)
2702 {
2703 fd_intern (sigfd); /* doing it twice will not hurt */
2032 2704
2033#ifndef _WIN32 2705 sigemptyset (&sigfd_set);
2034 sigprocmask (SIG_SETMASK, &prev, 0); 2706
2035#endif 2707 ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ);
2708 ev_set_priority (&sigfd_w, EV_MAXPRI);
2709 ev_io_start (EV_A_ &sigfd_w);
2710 ev_unref (EV_A); /* signalfd watcher should not keep loop alive */
2711 }
2036 } 2712 }
2713
2714 if (sigfd >= 0)
2715 {
2716 /* TODO: check .head */
2717 sigaddset (&sigfd_set, w->signum);
2718 sigprocmask (SIG_BLOCK, &sigfd_set, 0);
2719
2720 signalfd (sigfd, &sigfd_set, 0);
2721 }
2722#endif
2037 2723
2038 ev_start (EV_A_ (W)w, 1); 2724 ev_start (EV_A_ (W)w, 1);
2039 wlist_add (&signals [w->signum - 1].head, (WL)w); 2725 wlist_add (&signals [w->signum - 1].head, (WL)w);
2040 2726
2041 if (!((WL)w)->next) 2727 if (!((WL)w)->next)
2728# if EV_USE_SIGNALFD
2729 if (sigfd < 0) /*TODO*/
2730# endif
2042 { 2731 {
2043#if _WIN32 2732# if _WIN32
2044 signal (w->signum, ev_sighandler); 2733 signal (w->signum, ev_sighandler);
2045#else 2734# else
2046 struct sigaction sa; 2735 struct sigaction sa;
2736
2737 evpipe_init (EV_A);
2738
2047 sa.sa_handler = ev_sighandler; 2739 sa.sa_handler = ev_sighandler;
2048 sigfillset (&sa.sa_mask); 2740 sigfillset (&sa.sa_mask);
2049 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 2741 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2050 sigaction (w->signum, &sa, 0); 2742 sigaction (w->signum, &sa, 0);
2743
2744 sigemptyset (&sa.sa_mask);
2745 sigaddset (&sa.sa_mask, w->signum);
2746 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
2051#endif 2747#endif
2052 } 2748 }
2749
2750 EV_FREQUENT_CHECK;
2053} 2751}
2054 2752
2055void noinline 2753void noinline
2056ev_signal_stop (EV_P_ ev_signal *w) 2754ev_signal_stop (EV_P_ ev_signal *w)
2057{ 2755{
2058 clear_pending (EV_A_ (W)w); 2756 clear_pending (EV_A_ (W)w);
2059 if (expect_false (!ev_is_active (w))) 2757 if (expect_false (!ev_is_active (w)))
2060 return; 2758 return;
2061 2759
2760 EV_FREQUENT_CHECK;
2761
2062 wlist_del (&signals [w->signum - 1].head, (WL)w); 2762 wlist_del (&signals [w->signum - 1].head, (WL)w);
2063 ev_stop (EV_A_ (W)w); 2763 ev_stop (EV_A_ (W)w);
2064 2764
2065 if (!signals [w->signum - 1].head) 2765 if (!signals [w->signum - 1].head)
2766 {
2767#if EV_MULTIPLICITY
2768 signals [w->signum - 1].loop = 0; /* unattach from signal */
2769#endif
2770#if EV_USE_SIGNALFD
2771 if (sigfd >= 0)
2772 {
2773 sigprocmask (SIG_UNBLOCK, &sigfd_set, 0);//D
2774 sigdelset (&sigfd_set, w->signum);
2775 signalfd (sigfd, &sigfd_set, 0);
2776 sigprocmask (SIG_BLOCK, &sigfd_set, 0);//D
2777 /*TODO: maybe unblock signal? */
2778 }
2779 else
2780#endif
2066 signal (w->signum, SIG_DFL); 2781 signal (w->signum, SIG_DFL);
2782 }
2783
2784 EV_FREQUENT_CHECK;
2067} 2785}
2068 2786
2069void 2787void
2070ev_child_start (EV_P_ ev_child *w) 2788ev_child_start (EV_P_ ev_child *w)
2071{ 2789{
2072#if EV_MULTIPLICITY 2790#if EV_MULTIPLICITY
2073 assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 2791 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2074#endif 2792#endif
2075 if (expect_false (ev_is_active (w))) 2793 if (expect_false (ev_is_active (w)))
2076 return; 2794 return;
2077 2795
2796 EV_FREQUENT_CHECK;
2797
2078 ev_start (EV_A_ (W)w, 1); 2798 ev_start (EV_A_ (W)w, 1);
2079 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 2799 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
2800
2801 EV_FREQUENT_CHECK;
2080} 2802}
2081 2803
2082void 2804void
2083ev_child_stop (EV_P_ ev_child *w) 2805ev_child_stop (EV_P_ ev_child *w)
2084{ 2806{
2085 clear_pending (EV_A_ (W)w); 2807 clear_pending (EV_A_ (W)w);
2086 if (expect_false (!ev_is_active (w))) 2808 if (expect_false (!ev_is_active (w)))
2087 return; 2809 return;
2088 2810
2811 EV_FREQUENT_CHECK;
2812
2089 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 2813 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
2090 ev_stop (EV_A_ (W)w); 2814 ev_stop (EV_A_ (W)w);
2815
2816 EV_FREQUENT_CHECK;
2091} 2817}
2092 2818
2093#if EV_STAT_ENABLE 2819#if EV_STAT_ENABLE
2094 2820
2095# ifdef _WIN32 2821# ifdef _WIN32
2096# undef lstat 2822# undef lstat
2097# define lstat(a,b) _stati64 (a,b) 2823# define lstat(a,b) _stati64 (a,b)
2098# endif 2824# endif
2099 2825
2100#define DEF_STAT_INTERVAL 5.0074891 2826#define DEF_STAT_INTERVAL 5.0074891
2827#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
2101#define MIN_STAT_INTERVAL 0.1074891 2828#define MIN_STAT_INTERVAL 0.1074891
2102 2829
2103static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 2830static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2104 2831
2105#if EV_USE_INOTIFY 2832#if EV_USE_INOTIFY
2106# define EV_INOTIFY_BUFSIZE 8192 2833# define EV_INOTIFY_BUFSIZE 8192
… …
2110{ 2837{
2111 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); 2838 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);
2112 2839
2113 if (w->wd < 0) 2840 if (w->wd < 0)
2114 { 2841 {
2842 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2115 ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ 2843 ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2116 2844
2117 /* monitor some parent directory for speedup hints */ 2845 /* monitor some parent directory for speedup hints */
2846 /* note that exceeding the hardcoded path limit is not a correctness issue, */
2847 /* but an efficiency issue only */
2118 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) 2848 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2119 { 2849 {
2120 char path [4096]; 2850 char path [4096];
2121 strcpy (path, w->path); 2851 strcpy (path, w->path);
2122 2852
… …
2125 int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF 2855 int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF
2126 | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); 2856 | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);
2127 2857
2128 char *pend = strrchr (path, '/'); 2858 char *pend = strrchr (path, '/');
2129 2859
2130 if (!pend) 2860 if (!pend || pend == path)
2131 break; /* whoops, no '/', complain to your admin */ 2861 break;
2132 2862
2133 *pend = 0; 2863 *pend = 0;
2134 w->wd = inotify_add_watch (fs_fd, path, mask); 2864 w->wd = inotify_add_watch (fs_fd, path, mask);
2135 } 2865 }
2136 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 2866 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2137 } 2867 }
2138 } 2868 }
2139 else
2140 ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */
2141 2869
2142 if (w->wd >= 0) 2870 if (w->wd >= 0)
2871 {
2872 struct statfs sfs;
2873
2143 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 2874 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
2875
2876 /* now local changes will be tracked by inotify, but remote changes won't */
2877 /* unless the filesystem it known to be local, we therefore still poll */
2878 /* also do poll on <2.6.25, but with normal frequency */
2879
2880 if (fs_2625 && !statfs (w->path, &sfs))
2881 if (sfs.f_type == 0x1373 /* devfs */
2882 || sfs.f_type == 0xEF53 /* ext2/3 */
2883 || sfs.f_type == 0x3153464a /* jfs */
2884 || sfs.f_type == 0x52654973 /* reiser3 */
2885 || sfs.f_type == 0x01021994 /* tempfs */
2886 || sfs.f_type == 0x58465342 /* xfs */)
2887 return;
2888
2889 w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
2890 ev_timer_again (EV_A_ &w->timer);
2891 }
2144} 2892}
2145 2893
2146static void noinline 2894static void noinline
2147infy_del (EV_P_ ev_stat *w) 2895infy_del (EV_P_ ev_stat *w)
2148{ 2896{
… …
2162 2910
2163static void noinline 2911static void noinline
2164infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 2912infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2165{ 2913{
2166 if (slot < 0) 2914 if (slot < 0)
2167 /* overflow, need to check for all hahs slots */ 2915 /* overflow, need to check for all hash slots */
2168 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 2916 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
2169 infy_wd (EV_A_ slot, wd, ev); 2917 infy_wd (EV_A_ slot, wd, ev);
2170 else 2918 else
2171 { 2919 {
2172 WL w_; 2920 WL w_;
… …
2178 2926
2179 if (w->wd == wd || wd == -1) 2927 if (w->wd == wd || wd == -1)
2180 { 2928 {
2181 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 2929 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2182 { 2930 {
2931 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
2183 w->wd = -1; 2932 w->wd = -1;
2184 infy_add (EV_A_ w); /* re-add, no matter what */ 2933 infy_add (EV_A_ w); /* re-add, no matter what */
2185 } 2934 }
2186 2935
2187 stat_timer_cb (EV_A_ &w->timer, 0); 2936 stat_timer_cb (EV_A_ &w->timer, 0);
… …
2200 2949
2201 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) 2950 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)
2202 infy_wd (EV_A_ ev->wd, ev->wd, ev); 2951 infy_wd (EV_A_ ev->wd, ev->wd, ev);
2203} 2952}
2204 2953
2205void inline_size 2954inline_size void
2955check_2625 (EV_P)
2956{
2957 /* kernels < 2.6.25 are borked
2958 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2959 */
2960 struct utsname buf;
2961 int major, minor, micro;
2962
2963 if (uname (&buf))
2964 return;
2965
2966 if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
2967 return;
2968
2969 if (major < 2
2970 || (major == 2 && minor < 6)
2971 || (major == 2 && minor == 6 && micro < 25))
2972 return;
2973
2974 fs_2625 = 1;
2975}
2976
2977inline_size void
2206infy_init (EV_P) 2978infy_init (EV_P)
2207{ 2979{
2208 if (fs_fd != -2) 2980 if (fs_fd != -2)
2209 return; 2981 return;
2982
2983 fs_fd = -1;
2984
2985 check_2625 (EV_A);
2210 2986
2211 fs_fd = inotify_init (); 2987 fs_fd = inotify_init ();
2212 2988
2213 if (fs_fd >= 0) 2989 if (fs_fd >= 0)
2214 { 2990 {
… …
2216 ev_set_priority (&fs_w, EV_MAXPRI); 2992 ev_set_priority (&fs_w, EV_MAXPRI);
2217 ev_io_start (EV_A_ &fs_w); 2993 ev_io_start (EV_A_ &fs_w);
2218 } 2994 }
2219} 2995}
2220 2996
2221void inline_size 2997inline_size void
2222infy_fork (EV_P) 2998infy_fork (EV_P)
2223{ 2999{
2224 int slot; 3000 int slot;
2225 3001
2226 if (fs_fd < 0) 3002 if (fs_fd < 0)
… …
2242 w->wd = -1; 3018 w->wd = -1;
2243 3019
2244 if (fs_fd >= 0) 3020 if (fs_fd >= 0)
2245 infy_add (EV_A_ w); /* re-add, no matter what */ 3021 infy_add (EV_A_ w); /* re-add, no matter what */
2246 else 3022 else
2247 ev_timer_start (EV_A_ &w->timer); 3023 ev_timer_again (EV_A_ &w->timer);
2248 } 3024 }
2249
2250 } 3025 }
2251} 3026}
2252 3027
3028#endif
3029
3030#ifdef _WIN32
3031# define EV_LSTAT(p,b) _stati64 (p, b)
3032#else
3033# define EV_LSTAT(p,b) lstat (p, b)
2253#endif 3034#endif
2254 3035
2255void 3036void
2256ev_stat_stat (EV_P_ ev_stat *w) 3037ev_stat_stat (EV_P_ ev_stat *w)
2257{ 3038{
… …
2284 || w->prev.st_atime != w->attr.st_atime 3065 || w->prev.st_atime != w->attr.st_atime
2285 || w->prev.st_mtime != w->attr.st_mtime 3066 || w->prev.st_mtime != w->attr.st_mtime
2286 || w->prev.st_ctime != w->attr.st_ctime 3067 || w->prev.st_ctime != w->attr.st_ctime
2287 ) { 3068 ) {
2288 #if EV_USE_INOTIFY 3069 #if EV_USE_INOTIFY
3070 if (fs_fd >= 0)
3071 {
2289 infy_del (EV_A_ w); 3072 infy_del (EV_A_ w);
2290 infy_add (EV_A_ w); 3073 infy_add (EV_A_ w);
2291 ev_stat_stat (EV_A_ w); /* avoid race... */ 3074 ev_stat_stat (EV_A_ w); /* avoid race... */
3075 }
2292 #endif 3076 #endif
2293 3077
2294 ev_feed_event (EV_A_ w, EV_STAT); 3078 ev_feed_event (EV_A_ w, EV_STAT);
2295 } 3079 }
2296} 3080}
… …
2299ev_stat_start (EV_P_ ev_stat *w) 3083ev_stat_start (EV_P_ ev_stat *w)
2300{ 3084{
2301 if (expect_false (ev_is_active (w))) 3085 if (expect_false (ev_is_active (w)))
2302 return; 3086 return;
2303 3087
2304 /* since we use memcmp, we need to clear any padding data etc. */
2305 memset (&w->prev, 0, sizeof (ev_statdata));
2306 memset (&w->attr, 0, sizeof (ev_statdata));
2307
2308 ev_stat_stat (EV_A_ w); 3088 ev_stat_stat (EV_A_ w);
2309 3089
3090 if (w->interval < MIN_STAT_INTERVAL && w->interval)
2310 if (w->interval < MIN_STAT_INTERVAL) 3091 w->interval = MIN_STAT_INTERVAL;
2311 w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
2312 3092
2313 ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); 3093 ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL);
2314 ev_set_priority (&w->timer, ev_priority (w)); 3094 ev_set_priority (&w->timer, ev_priority (w));
2315 3095
2316#if EV_USE_INOTIFY 3096#if EV_USE_INOTIFY
2317 infy_init (EV_A); 3097 infy_init (EV_A);
2318 3098
2319 if (fs_fd >= 0) 3099 if (fs_fd >= 0)
2320 infy_add (EV_A_ w); 3100 infy_add (EV_A_ w);
2321 else 3101 else
2322#endif 3102#endif
2323 ev_timer_start (EV_A_ &w->timer); 3103 ev_timer_again (EV_A_ &w->timer);
2324 3104
2325 ev_start (EV_A_ (W)w, 1); 3105 ev_start (EV_A_ (W)w, 1);
3106
3107 EV_FREQUENT_CHECK;
2326} 3108}
2327 3109
2328void 3110void
2329ev_stat_stop (EV_P_ ev_stat *w) 3111ev_stat_stop (EV_P_ ev_stat *w)
2330{ 3112{
2331 clear_pending (EV_A_ (W)w); 3113 clear_pending (EV_A_ (W)w);
2332 if (expect_false (!ev_is_active (w))) 3114 if (expect_false (!ev_is_active (w)))
2333 return; 3115 return;
2334 3116
3117 EV_FREQUENT_CHECK;
3118
2335#if EV_USE_INOTIFY 3119#if EV_USE_INOTIFY
2336 infy_del (EV_A_ w); 3120 infy_del (EV_A_ w);
2337#endif 3121#endif
2338 ev_timer_stop (EV_A_ &w->timer); 3122 ev_timer_stop (EV_A_ &w->timer);
2339 3123
2340 ev_stop (EV_A_ (W)w); 3124 ev_stop (EV_A_ (W)w);
3125
3126 EV_FREQUENT_CHECK;
2341} 3127}
2342#endif 3128#endif
2343 3129
2344#if EV_IDLE_ENABLE 3130#if EV_IDLE_ENABLE
2345void 3131void
… …
2347{ 3133{
2348 if (expect_false (ev_is_active (w))) 3134 if (expect_false (ev_is_active (w)))
2349 return; 3135 return;
2350 3136
2351 pri_adjust (EV_A_ (W)w); 3137 pri_adjust (EV_A_ (W)w);
3138
3139 EV_FREQUENT_CHECK;
2352 3140
2353 { 3141 {
2354 int active = ++idlecnt [ABSPRI (w)]; 3142 int active = ++idlecnt [ABSPRI (w)];
2355 3143
2356 ++idleall; 3144 ++idleall;
2357 ev_start (EV_A_ (W)w, active); 3145 ev_start (EV_A_ (W)w, active);
2358 3146
2359 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); 3147 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);
2360 idles [ABSPRI (w)][active - 1] = w; 3148 idles [ABSPRI (w)][active - 1] = w;
2361 } 3149 }
3150
3151 EV_FREQUENT_CHECK;
2362} 3152}
2363 3153
2364void 3154void
2365ev_idle_stop (EV_P_ ev_idle *w) 3155ev_idle_stop (EV_P_ ev_idle *w)
2366{ 3156{
2367 clear_pending (EV_A_ (W)w); 3157 clear_pending (EV_A_ (W)w);
2368 if (expect_false (!ev_is_active (w))) 3158 if (expect_false (!ev_is_active (w)))
2369 return; 3159 return;
2370 3160
3161 EV_FREQUENT_CHECK;
3162
2371 { 3163 {
2372 int active = ((W)w)->active; 3164 int active = ev_active (w);
2373 3165
2374 idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; 3166 idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
2375 ((W)idles [ABSPRI (w)][active - 1])->active = active; 3167 ev_active (idles [ABSPRI (w)][active - 1]) = active;
2376 3168
2377 ev_stop (EV_A_ (W)w); 3169 ev_stop (EV_A_ (W)w);
2378 --idleall; 3170 --idleall;
2379 } 3171 }
3172
3173 EV_FREQUENT_CHECK;
2380} 3174}
2381#endif 3175#endif
2382 3176
2383void 3177void
2384ev_prepare_start (EV_P_ ev_prepare *w) 3178ev_prepare_start (EV_P_ ev_prepare *w)
2385{ 3179{
2386 if (expect_false (ev_is_active (w))) 3180 if (expect_false (ev_is_active (w)))
2387 return; 3181 return;
3182
3183 EV_FREQUENT_CHECK;
2388 3184
2389 ev_start (EV_A_ (W)w, ++preparecnt); 3185 ev_start (EV_A_ (W)w, ++preparecnt);
2390 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); 3186 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
2391 prepares [preparecnt - 1] = w; 3187 prepares [preparecnt - 1] = w;
3188
3189 EV_FREQUENT_CHECK;
2392} 3190}
2393 3191
2394void 3192void
2395ev_prepare_stop (EV_P_ ev_prepare *w) 3193ev_prepare_stop (EV_P_ ev_prepare *w)
2396{ 3194{
2397 clear_pending (EV_A_ (W)w); 3195 clear_pending (EV_A_ (W)w);
2398 if (expect_false (!ev_is_active (w))) 3196 if (expect_false (!ev_is_active (w)))
2399 return; 3197 return;
2400 3198
3199 EV_FREQUENT_CHECK;
3200
2401 { 3201 {
2402 int active = ((W)w)->active; 3202 int active = ev_active (w);
3203
2403 prepares [active - 1] = prepares [--preparecnt]; 3204 prepares [active - 1] = prepares [--preparecnt];
2404 ((W)prepares [active - 1])->active = active; 3205 ev_active (prepares [active - 1]) = active;
2405 } 3206 }
2406 3207
2407 ev_stop (EV_A_ (W)w); 3208 ev_stop (EV_A_ (W)w);
3209
3210 EV_FREQUENT_CHECK;
2408} 3211}
2409 3212
2410void 3213void
2411ev_check_start (EV_P_ ev_check *w) 3214ev_check_start (EV_P_ ev_check *w)
2412{ 3215{
2413 if (expect_false (ev_is_active (w))) 3216 if (expect_false (ev_is_active (w)))
2414 return; 3217 return;
3218
3219 EV_FREQUENT_CHECK;
2415 3220
2416 ev_start (EV_A_ (W)w, ++checkcnt); 3221 ev_start (EV_A_ (W)w, ++checkcnt);
2417 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); 3222 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
2418 checks [checkcnt - 1] = w; 3223 checks [checkcnt - 1] = w;
3224
3225 EV_FREQUENT_CHECK;
2419} 3226}
2420 3227
2421void 3228void
2422ev_check_stop (EV_P_ ev_check *w) 3229ev_check_stop (EV_P_ ev_check *w)
2423{ 3230{
2424 clear_pending (EV_A_ (W)w); 3231 clear_pending (EV_A_ (W)w);
2425 if (expect_false (!ev_is_active (w))) 3232 if (expect_false (!ev_is_active (w)))
2426 return; 3233 return;
2427 3234
3235 EV_FREQUENT_CHECK;
3236
2428 { 3237 {
2429 int active = ((W)w)->active; 3238 int active = ev_active (w);
3239
2430 checks [active - 1] = checks [--checkcnt]; 3240 checks [active - 1] = checks [--checkcnt];
2431 ((W)checks [active - 1])->active = active; 3241 ev_active (checks [active - 1]) = active;
2432 } 3242 }
2433 3243
2434 ev_stop (EV_A_ (W)w); 3244 ev_stop (EV_A_ (W)w);
3245
3246 EV_FREQUENT_CHECK;
2435} 3247}
2436 3248
2437#if EV_EMBED_ENABLE 3249#if EV_EMBED_ENABLE
2438void noinline 3250void noinline
2439ev_embed_sweep (EV_P_ ev_embed *w) 3251ev_embed_sweep (EV_P_ ev_embed *w)
… …
2456embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 3268embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
2457{ 3269{
2458 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); 3270 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
2459 3271
2460 { 3272 {
2461 struct ev_loop *loop = w->other; 3273 EV_P = w->other;
2462 3274
2463 while (fdchangecnt) 3275 while (fdchangecnt)
2464 { 3276 {
2465 fd_reify (EV_A); 3277 fd_reify (EV_A);
2466 ev_loop (EV_A_ EVLOOP_NONBLOCK); 3278 ev_loop (EV_A_ EVLOOP_NONBLOCK);
2467 } 3279 }
2468 } 3280 }
2469} 3281}
2470 3282
3283static void
3284embed_fork_cb (EV_P_ ev_fork *fork_w, int revents)
3285{
3286 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
3287
3288 ev_embed_stop (EV_A_ w);
3289
3290 {
3291 EV_P = w->other;
3292
3293 ev_loop_fork (EV_A);
3294 ev_loop (EV_A_ EVLOOP_NONBLOCK);
3295 }
3296
3297 ev_embed_start (EV_A_ w);
3298}
3299
2471#if 0 3300#if 0
2472static void 3301static void
2473embed_idle_cb (EV_P_ ev_idle *idle, int revents) 3302embed_idle_cb (EV_P_ ev_idle *idle, int revents)
2474{ 3303{
2475 ev_idle_stop (EV_A_ idle); 3304 ev_idle_stop (EV_A_ idle);
… …
2481{ 3310{
2482 if (expect_false (ev_is_active (w))) 3311 if (expect_false (ev_is_active (w)))
2483 return; 3312 return;
2484 3313
2485 { 3314 {
2486 struct ev_loop *loop = w->other; 3315 EV_P = w->other;
2487 assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 3316 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2488 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); 3317 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2489 } 3318 }
3319
3320 EV_FREQUENT_CHECK;
2490 3321
2491 ev_set_priority (&w->io, ev_priority (w)); 3322 ev_set_priority (&w->io, ev_priority (w));
2492 ev_io_start (EV_A_ &w->io); 3323 ev_io_start (EV_A_ &w->io);
2493 3324
2494 ev_prepare_init (&w->prepare, embed_prepare_cb); 3325 ev_prepare_init (&w->prepare, embed_prepare_cb);
2495 ev_set_priority (&w->prepare, EV_MINPRI); 3326 ev_set_priority (&w->prepare, EV_MINPRI);
2496 ev_prepare_start (EV_A_ &w->prepare); 3327 ev_prepare_start (EV_A_ &w->prepare);
2497 3328
3329 ev_fork_init (&w->fork, embed_fork_cb);
3330 ev_fork_start (EV_A_ &w->fork);
3331
2498 /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ 3332 /*ev_idle_init (&w->idle, e,bed_idle_cb);*/
2499 3333
2500 ev_start (EV_A_ (W)w, 1); 3334 ev_start (EV_A_ (W)w, 1);
3335
3336 EV_FREQUENT_CHECK;
2501} 3337}
2502 3338
2503void 3339void
2504ev_embed_stop (EV_P_ ev_embed *w) 3340ev_embed_stop (EV_P_ ev_embed *w)
2505{ 3341{
2506 clear_pending (EV_A_ (W)w); 3342 clear_pending (EV_A_ (W)w);
2507 if (expect_false (!ev_is_active (w))) 3343 if (expect_false (!ev_is_active (w)))
2508 return; 3344 return;
2509 3345
3346 EV_FREQUENT_CHECK;
3347
2510 ev_io_stop (EV_A_ &w->io); 3348 ev_io_stop (EV_A_ &w->io);
2511 ev_prepare_stop (EV_A_ &w->prepare); 3349 ev_prepare_stop (EV_A_ &w->prepare);
3350 ev_fork_stop (EV_A_ &w->fork);
2512 3351
2513 ev_stop (EV_A_ (W)w); 3352 EV_FREQUENT_CHECK;
2514} 3353}
2515#endif 3354#endif
2516 3355
2517#if EV_FORK_ENABLE 3356#if EV_FORK_ENABLE
2518void 3357void
2519ev_fork_start (EV_P_ ev_fork *w) 3358ev_fork_start (EV_P_ ev_fork *w)
2520{ 3359{
2521 if (expect_false (ev_is_active (w))) 3360 if (expect_false (ev_is_active (w)))
2522 return; 3361 return;
3362
3363 EV_FREQUENT_CHECK;
2523 3364
2524 ev_start (EV_A_ (W)w, ++forkcnt); 3365 ev_start (EV_A_ (W)w, ++forkcnt);
2525 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); 3366 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);
2526 forks [forkcnt - 1] = w; 3367 forks [forkcnt - 1] = w;
3368
3369 EV_FREQUENT_CHECK;
2527} 3370}
2528 3371
2529void 3372void
2530ev_fork_stop (EV_P_ ev_fork *w) 3373ev_fork_stop (EV_P_ ev_fork *w)
2531{ 3374{
2532 clear_pending (EV_A_ (W)w); 3375 clear_pending (EV_A_ (W)w);
2533 if (expect_false (!ev_is_active (w))) 3376 if (expect_false (!ev_is_active (w)))
2534 return; 3377 return;
2535 3378
3379 EV_FREQUENT_CHECK;
3380
2536 { 3381 {
2537 int active = ((W)w)->active; 3382 int active = ev_active (w);
3383
2538 forks [active - 1] = forks [--forkcnt]; 3384 forks [active - 1] = forks [--forkcnt];
2539 ((W)forks [active - 1])->active = active; 3385 ev_active (forks [active - 1]) = active;
2540 } 3386 }
2541 3387
2542 ev_stop (EV_A_ (W)w); 3388 ev_stop (EV_A_ (W)w);
3389
3390 EV_FREQUENT_CHECK;
2543} 3391}
2544#endif 3392#endif
2545 3393
2546#if EV_ASYNC_ENABLE 3394#if EV_ASYNC_ENABLE
2547void 3395void
… …
2549{ 3397{
2550 if (expect_false (ev_is_active (w))) 3398 if (expect_false (ev_is_active (w)))
2551 return; 3399 return;
2552 3400
2553 evpipe_init (EV_A); 3401 evpipe_init (EV_A);
3402
3403 EV_FREQUENT_CHECK;
2554 3404
2555 ev_start (EV_A_ (W)w, ++asynccnt); 3405 ev_start (EV_A_ (W)w, ++asynccnt);
2556 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); 3406 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2);
2557 asyncs [asynccnt - 1] = w; 3407 asyncs [asynccnt - 1] = w;
3408
3409 EV_FREQUENT_CHECK;
2558} 3410}
2559 3411
2560void 3412void
2561ev_async_stop (EV_P_ ev_async *w) 3413ev_async_stop (EV_P_ ev_async *w)
2562{ 3414{
2563 clear_pending (EV_A_ (W)w); 3415 clear_pending (EV_A_ (W)w);
2564 if (expect_false (!ev_is_active (w))) 3416 if (expect_false (!ev_is_active (w)))
2565 return; 3417 return;
2566 3418
3419 EV_FREQUENT_CHECK;
3420
2567 { 3421 {
2568 int active = ((W)w)->active; 3422 int active = ev_active (w);
3423
2569 asyncs [active - 1] = asyncs [--asynccnt]; 3424 asyncs [active - 1] = asyncs [--asynccnt];
2570 ((W)asyncs [active - 1])->active = active; 3425 ev_active (asyncs [active - 1]) = active;
2571 } 3426 }
2572 3427
2573 ev_stop (EV_A_ (W)w); 3428 ev_stop (EV_A_ (W)w);
3429
3430 EV_FREQUENT_CHECK;
2574} 3431}
2575 3432
2576void 3433void
2577ev_async_send (EV_P_ ev_async *w) 3434ev_async_send (EV_P_ ev_async *w)
2578{ 3435{
2579 w->sent = 1; 3436 w->sent = 1;
2580 evpipe_write (EV_A_ &gotasync); 3437 evpipe_write (EV_A_ &async_pending);
2581} 3438}
2582#endif 3439#endif
2583 3440
2584/*****************************************************************************/ 3441/*****************************************************************************/
2585 3442
… …
2595once_cb (EV_P_ struct ev_once *once, int revents) 3452once_cb (EV_P_ struct ev_once *once, int revents)
2596{ 3453{
2597 void (*cb)(int revents, void *arg) = once->cb; 3454 void (*cb)(int revents, void *arg) = once->cb;
2598 void *arg = once->arg; 3455 void *arg = once->arg;
2599 3456
2600 ev_io_stop (EV_A_ &once->io); 3457 ev_io_stop (EV_A_ &once->io);
2601 ev_timer_stop (EV_A_ &once->to); 3458 ev_timer_stop (EV_A_ &once->to);
2602 ev_free (once); 3459 ev_free (once);
2603 3460
2604 cb (revents, arg); 3461 cb (revents, arg);
2605} 3462}
2606 3463
2607static void 3464static void
2608once_cb_io (EV_P_ ev_io *w, int revents) 3465once_cb_io (EV_P_ ev_io *w, int revents)
2609{ 3466{
2610 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); 3467 struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io));
3468
3469 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to));
2611} 3470}
2612 3471
2613static void 3472static void
2614once_cb_to (EV_P_ ev_timer *w, int revents) 3473once_cb_to (EV_P_ ev_timer *w, int revents)
2615{ 3474{
2616 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); 3475 struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to));
3476
3477 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
2617} 3478}
2618 3479
2619void 3480void
2620ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 3481ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)
2621{ 3482{
… …
2643 ev_timer_set (&once->to, timeout, 0.); 3504 ev_timer_set (&once->to, timeout, 0.);
2644 ev_timer_start (EV_A_ &once->to); 3505 ev_timer_start (EV_A_ &once->to);
2645 } 3506 }
2646} 3507}
2647 3508
3509/*****************************************************************************/
3510
3511#if EV_WALK_ENABLE
3512void
3513ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))
3514{
3515 int i, j;
3516 ev_watcher_list *wl, *wn;
3517
3518 if (types & (EV_IO | EV_EMBED))
3519 for (i = 0; i < anfdmax; ++i)
3520 for (wl = anfds [i].head; wl; )
3521 {
3522 wn = wl->next;
3523
3524#if EV_EMBED_ENABLE
3525 if (ev_cb ((ev_io *)wl) == embed_io_cb)
3526 {
3527 if (types & EV_EMBED)
3528 cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io));
3529 }
3530 else
3531#endif
3532#if EV_USE_INOTIFY
3533 if (ev_cb ((ev_io *)wl) == infy_cb)
3534 ;
3535 else
3536#endif
3537 if ((ev_io *)wl != &pipe_w)
3538 if (types & EV_IO)
3539 cb (EV_A_ EV_IO, wl);
3540
3541 wl = wn;
3542 }
3543
3544 if (types & (EV_TIMER | EV_STAT))
3545 for (i = timercnt + HEAP0; i-- > HEAP0; )
3546#if EV_STAT_ENABLE
3547 /*TODO: timer is not always active*/
3548 if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb)
3549 {
3550 if (types & EV_STAT)
3551 cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer));
3552 }
3553 else
3554#endif
3555 if (types & EV_TIMER)
3556 cb (EV_A_ EV_TIMER, ANHE_w (timers [i]));
3557
3558#if EV_PERIODIC_ENABLE
3559 if (types & EV_PERIODIC)
3560 for (i = periodiccnt + HEAP0; i-- > HEAP0; )
3561 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3562#endif
3563
3564#if EV_IDLE_ENABLE
3565 if (types & EV_IDLE)
3566 for (j = NUMPRI; i--; )
3567 for (i = idlecnt [j]; i--; )
3568 cb (EV_A_ EV_IDLE, idles [j][i]);
3569#endif
3570
3571#if EV_FORK_ENABLE
3572 if (types & EV_FORK)
3573 for (i = forkcnt; i--; )
3574 if (ev_cb (forks [i]) != embed_fork_cb)
3575 cb (EV_A_ EV_FORK, forks [i]);
3576#endif
3577
3578#if EV_ASYNC_ENABLE
3579 if (types & EV_ASYNC)
3580 for (i = asynccnt; i--; )
3581 cb (EV_A_ EV_ASYNC, asyncs [i]);
3582#endif
3583
3584 if (types & EV_PREPARE)
3585 for (i = preparecnt; i--; )
3586#if EV_EMBED_ENABLE
3587 if (ev_cb (prepares [i]) != embed_prepare_cb)
3588#endif
3589 cb (EV_A_ EV_PREPARE, prepares [i]);
3590
3591 if (types & EV_CHECK)
3592 for (i = checkcnt; i--; )
3593 cb (EV_A_ EV_CHECK, checks [i]);
3594
3595 if (types & EV_SIGNAL)
3596 for (i = 0; i < EV_NSIG - 1; ++i)
3597 for (wl = signals [i].head; wl; )
3598 {
3599 wn = wl->next;
3600 cb (EV_A_ EV_SIGNAL, wl);
3601 wl = wn;
3602 }
3603
3604 if (types & EV_CHILD)
3605 for (i = EV_PID_HASHSIZE; i--; )
3606 for (wl = childs [i]; wl; )
3607 {
3608 wn = wl->next;
3609 cb (EV_A_ EV_CHILD, wl);
3610 wl = wn;
3611 }
3612/* EV_STAT 0x00001000 /* stat data changed */
3613/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3614}
3615#endif
3616
2648#if EV_MULTIPLICITY 3617#if EV_MULTIPLICITY
2649 #include "ev_wrap.h" 3618 #include "ev_wrap.h"
2650#endif 3619#endif
2651 3620
2652#ifdef __cplusplus 3621#ifdef __cplusplus

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