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Comparing libev/ev.c (file contents):
Revision 1.268 by root, Mon Oct 27 13:39:18 2008 UTC vs.
Revision 1.317 by root, Sat Nov 14 00:15:21 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
… …
116# ifndef EV_USE_INOTIFY 130# ifndef EV_USE_INOTIFY
117# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H 131# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H
118# define EV_USE_INOTIFY 1 132# define EV_USE_INOTIFY 1
119# else 133# else
120# define EV_USE_INOTIFY 0 134# define EV_USE_INOTIFY 0
135# endif
136# endif
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
121# endif 143# endif
122# endif 144# endif
123 145
124# ifndef EV_USE_EVENTFD 146# ifndef EV_USE_EVENTFD
125# if HAVE_EVENTFD 147# if HAVE_EVENTFD
… …
164# endif 186# endif
165#endif 187#endif
166 188
167/* this block tries to deduce configuration from header-defined symbols and defaults */ 189/* this block tries to deduce configuration from header-defined symbols and defaults */
168 190
191/* try to deduce the maximum number of signals on this platform */
192#if defined (EV_NSIG)
193/* use what's provided */
194#elif defined (NSIG)
195# define EV_NSIG (NSIG)
196#elif defined(_NSIG)
197# define EV_NSIG (_NSIG)
198#elif defined (SIGMAX)
199# define EV_NSIG (SIGMAX+1)
200#elif defined (SIG_MAX)
201# define EV_NSIG (SIG_MAX+1)
202#elif defined (_SIG_MAX)
203# define EV_NSIG (_SIG_MAX+1)
204#elif defined (MAXSIG)
205# define EV_NSIG (MAXSIG+1)
206#elif defined (MAX_SIG)
207# define EV_NSIG (MAX_SIG+1)
208#elif defined (SIGARRAYSIZE)
209# define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */
210#elif defined (_sys_nsig)
211# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
212#else
213# error "unable to find value for NSIG, please report"
214/* to make it compile regardless, just remove the above line */
215# define EV_NSIG 65
216#endif
217
218#ifndef EV_USE_CLOCK_SYSCALL
219# if __linux && __GLIBC__ >= 2
220# define EV_USE_CLOCK_SYSCALL 1
221# else
222# define EV_USE_CLOCK_SYSCALL 0
223# endif
224#endif
225
169#ifndef EV_USE_MONOTONIC 226#ifndef EV_USE_MONOTONIC
170# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 227# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0
171# define EV_USE_MONOTONIC 1 228# define EV_USE_MONOTONIC 1
172# else 229# else
173# define EV_USE_MONOTONIC 0 230# define EV_USE_MONOTONIC 0
174# endif 231# endif
175#endif 232#endif
176 233
177#ifndef EV_USE_REALTIME 234#ifndef EV_USE_REALTIME
178# define EV_USE_REALTIME 0 235# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
179#endif 236#endif
180 237
181#ifndef EV_USE_NANOSLEEP 238#ifndef EV_USE_NANOSLEEP
182# if _POSIX_C_SOURCE >= 199309L 239# if _POSIX_C_SOURCE >= 199309L
183# define EV_USE_NANOSLEEP 1 240# define EV_USE_NANOSLEEP 1
… …
244# else 301# else
245# define EV_USE_EVENTFD 0 302# define EV_USE_EVENTFD 0
246# endif 303# endif
247#endif 304#endif
248 305
306#ifndef EV_USE_SIGNALFD
307# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
308# define EV_USE_SIGNALFD 1
309# else
310# define EV_USE_SIGNALFD 0
311# endif
312#endif
313
249#if 0 /* debugging */ 314#if 0 /* debugging */
250# define EV_VERIFY 3 315# define EV_VERIFY 3
251# define EV_USE_4HEAP 1 316# define EV_USE_4HEAP 1
252# define EV_HEAP_CACHE_AT 1 317# define EV_HEAP_CACHE_AT 1
253#endif 318#endif
… …
262 327
263#ifndef EV_HEAP_CACHE_AT 328#ifndef EV_HEAP_CACHE_AT
264# define EV_HEAP_CACHE_AT !EV_MINIMAL 329# define EV_HEAP_CACHE_AT !EV_MINIMAL
265#endif 330#endif
266 331
332/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
333/* which makes programs even slower. might work on other unices, too. */
334#if EV_USE_CLOCK_SYSCALL
335# include <syscall.h>
336# ifdef SYS_clock_gettime
337# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
338# undef EV_USE_MONOTONIC
339# define EV_USE_MONOTONIC 1
340# else
341# undef EV_USE_CLOCK_SYSCALL
342# define EV_USE_CLOCK_SYSCALL 0
343# endif
344#endif
345
267/* this block fixes any misconfiguration where we know we run into trouble otherwise */ 346/* this block fixes any misconfiguration where we know we run into trouble otherwise */
268 347
269#ifndef CLOCK_MONOTONIC 348#ifndef CLOCK_MONOTONIC
270# undef EV_USE_MONOTONIC 349# undef EV_USE_MONOTONIC
271# define EV_USE_MONOTONIC 0 350# define EV_USE_MONOTONIC 0
… …
287# endif 366# endif
288#endif 367#endif
289 368
290#if EV_USE_INOTIFY 369#if EV_USE_INOTIFY
291# include <sys/utsname.h> 370# include <sys/utsname.h>
371# include <sys/statfs.h>
292# include <sys/inotify.h> 372# include <sys/inotify.h>
293/* some very old inotify.h headers don't have IN_DONT_FOLLOW */ 373/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
294# ifndef IN_DONT_FOLLOW 374# ifndef IN_DONT_FOLLOW
295# undef EV_USE_INOTIFY 375# undef EV_USE_INOTIFY
296# define EV_USE_INOTIFY 0 376# define EV_USE_INOTIFY 0
… …
302#endif 382#endif
303 383
304#if EV_USE_EVENTFD 384#if EV_USE_EVENTFD
305/* 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 */
306# 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
307# ifdef __cplusplus 397# ifdef __cplusplus
308extern "C" { 398extern "C" {
309# endif 399# endif
310int eventfd (unsigned int initval, int flags); 400int eventfd (unsigned int initval, int flags);
311# ifdef __cplusplus 401# ifdef __cplusplus
312} 402}
313# endif 403# endif
314#endif 404#endif
405
406#if EV_USE_SIGNALFD
407/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
408# include <stdint.h>
409# ifndef SFD_NONBLOCK
410# define SFD_NONBLOCK O_NONBLOCK
411# endif
412# ifndef SFD_CLOEXEC
413# ifdef O_CLOEXEC
414# define SFD_CLOEXEC O_CLOEXEC
415# else
416# define SFD_CLOEXEC 02000000
417# endif
418# endif
419# ifdef __cplusplus
420extern "C" {
421# endif
422int signalfd (int fd, const sigset_t *mask, int flags);
423
424struct signalfd_siginfo
425{
426 uint32_t ssi_signo;
427 char pad[128 - sizeof (uint32_t)];
428};
429# ifdef __cplusplus
430}
431# endif
432#endif
433
315 434
316/**/ 435/**/
317 436
318#if EV_VERIFY >= 3 437#if EV_VERIFY >= 3
319# define EV_FREQUENT_CHECK ev_loop_verify (EV_A) 438# define EV_FREQUENT_CHECK ev_loop_verify (EV_A)
… …
331 */ 450 */
332#define TIME_EPSILON 0.0001220703125 /* 1/8192 */ 451#define TIME_EPSILON 0.0001220703125 /* 1/8192 */
333 452
334#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 453#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
335#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 454#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
336/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */
337 455
338#if __GNUC__ >= 4 456#if __GNUC__ >= 4
339# define expect(expr,value) __builtin_expect ((expr),(value)) 457# define expect(expr,value) __builtin_expect ((expr),(value))
340# define noinline __attribute__ ((noinline)) 458# define noinline __attribute__ ((noinline))
341#else 459#else
… …
354# define inline_speed static noinline 472# define inline_speed static noinline
355#else 473#else
356# define inline_speed static inline 474# define inline_speed static inline
357#endif 475#endif
358 476
359#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 477#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
478
479#if EV_MINPRI == EV_MAXPRI
480# define ABSPRI(w) (((W)w), 0)
481#else
360#define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 482# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
483#endif
361 484
362#define EMPTY /* required for microsofts broken pseudo-c compiler */ 485#define EMPTY /* required for microsofts broken pseudo-c compiler */
363#define EMPTY2(a,b) /* used to suppress some warnings */ 486#define EMPTY2(a,b) /* used to suppress some warnings */
364 487
365typedef ev_watcher *W; 488typedef ev_watcher *W;
… …
367typedef ev_watcher_time *WT; 490typedef ev_watcher_time *WT;
368 491
369#define ev_active(w) ((W)(w))->active 492#define ev_active(w) ((W)(w))->active
370#define ev_at(w) ((WT)(w))->at 493#define ev_at(w) ((WT)(w))->at
371 494
372#if EV_USE_MONOTONIC 495#if EV_USE_REALTIME
373/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 496/* sig_atomic_t is used to avoid per-thread variables or locking but still */
374/* giving it a reasonably high chance of working on typical architetcures */ 497/* giving it a reasonably high chance of working on typical architetcures */
498static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
499#endif
500
501#if EV_USE_MONOTONIC
375static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 502static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
503#endif
504
505#ifndef EV_FD_TO_WIN32_HANDLE
506# define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd)
507#endif
508#ifndef EV_WIN32_HANDLE_TO_FD
509# define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (fd, 0)
510#endif
511#ifndef EV_WIN32_CLOSE_FD
512# define EV_WIN32_CLOSE_FD(fd) close (fd)
376#endif 513#endif
377 514
378#ifdef _WIN32 515#ifdef _WIN32
379# include "ev_win32.c" 516# include "ev_win32.c"
380#endif 517#endif
… …
388{ 525{
389 syserr_cb = cb; 526 syserr_cb = cb;
390} 527}
391 528
392static void noinline 529static void noinline
393syserr (const char *msg) 530ev_syserr (const char *msg)
394{ 531{
395 if (!msg) 532 if (!msg)
396 msg = "(libev) system error"; 533 msg = "(libev) system error";
397 534
398 if (syserr_cb) 535 if (syserr_cb)
… …
444#define ev_malloc(size) ev_realloc (0, (size)) 581#define ev_malloc(size) ev_realloc (0, (size))
445#define ev_free(ptr) ev_realloc ((ptr), 0) 582#define ev_free(ptr) ev_realloc ((ptr), 0)
446 583
447/*****************************************************************************/ 584/*****************************************************************************/
448 585
586/* set in reify when reification needed */
587#define EV_ANFD_REIFY 1
588
589/* file descriptor info structure */
449typedef struct 590typedef struct
450{ 591{
451 WL head; 592 WL head;
452 unsigned char events; 593 unsigned char events; /* the events watched for */
453 unsigned char reify; 594 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
454 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 595 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
596 unsigned char unused;
597#if EV_USE_EPOLL
455 unsigned char egen; /* generation counter to counter epoll bugs */ 598 unsigned int egen; /* generation counter to counter epoll bugs */
599#endif
456#if EV_SELECT_IS_WINSOCKET 600#if EV_SELECT_IS_WINSOCKET
457 SOCKET handle; 601 SOCKET handle;
458#endif 602#endif
459} ANFD; 603} ANFD;
460 604
605/* stores the pending event set for a given watcher */
461typedef struct 606typedef struct
462{ 607{
463 W w; 608 W w;
464 int events; 609 int events; /* the pending event set for the given watcher */
465} ANPENDING; 610} ANPENDING;
466 611
467#if EV_USE_INOTIFY 612#if EV_USE_INOTIFY
468/* hash table entry per inotify-id */ 613/* hash table entry per inotify-id */
469typedef struct 614typedef struct
… …
472} ANFS; 617} ANFS;
473#endif 618#endif
474 619
475/* Heap Entry */ 620/* Heap Entry */
476#if EV_HEAP_CACHE_AT 621#if EV_HEAP_CACHE_AT
622 /* a heap element */
477 typedef struct { 623 typedef struct {
478 ev_tstamp at; 624 ev_tstamp at;
479 WT w; 625 WT w;
480 } ANHE; 626 } ANHE;
481 627
482 #define ANHE_w(he) (he).w /* access watcher, read-write */ 628 #define ANHE_w(he) (he).w /* access watcher, read-write */
483 #define ANHE_at(he) (he).at /* access cached at, read-only */ 629 #define ANHE_at(he) (he).at /* access cached at, read-only */
484 #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ 630 #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */
485#else 631#else
632 /* a heap element */
486 typedef WT ANHE; 633 typedef WT ANHE;
487 634
488 #define ANHE_w(he) (he) 635 #define ANHE_w(he) (he)
489 #define ANHE_at(he) (he)->at 636 #define ANHE_at(he) (he)->at
490 #define ANHE_at_cache(he) 637 #define ANHE_at_cache(he)
… …
514 661
515 static int ev_default_loop_ptr; 662 static int ev_default_loop_ptr;
516 663
517#endif 664#endif
518 665
666#if EV_MINIMAL < 2
667# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
668# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
669# define EV_INVOKE_PENDING invoke_cb (EV_A)
670#else
671# define EV_RELEASE_CB (void)0
672# define EV_ACQUIRE_CB (void)0
673# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
674#endif
675
676#define EVUNLOOP_RECURSE 0x80
677
519/*****************************************************************************/ 678/*****************************************************************************/
520 679
680#ifndef EV_HAVE_EV_TIME
521ev_tstamp 681ev_tstamp
522ev_time (void) 682ev_time (void)
523{ 683{
524#if EV_USE_REALTIME 684#if EV_USE_REALTIME
685 if (expect_true (have_realtime))
686 {
525 struct timespec ts; 687 struct timespec ts;
526 clock_gettime (CLOCK_REALTIME, &ts); 688 clock_gettime (CLOCK_REALTIME, &ts);
527 return ts.tv_sec + ts.tv_nsec * 1e-9; 689 return ts.tv_sec + ts.tv_nsec * 1e-9;
528#else 690 }
691#endif
692
529 struct timeval tv; 693 struct timeval tv;
530 gettimeofday (&tv, 0); 694 gettimeofday (&tv, 0);
531 return tv.tv_sec + tv.tv_usec * 1e-6; 695 return tv.tv_sec + tv.tv_usec * 1e-6;
532#endif
533} 696}
697#endif
534 698
535ev_tstamp inline_size 699inline_size ev_tstamp
536get_clock (void) 700get_clock (void)
537{ 701{
538#if EV_USE_MONOTONIC 702#if EV_USE_MONOTONIC
539 if (expect_true (have_monotonic)) 703 if (expect_true (have_monotonic))
540 { 704 {
… …
574 738
575 tv.tv_sec = (time_t)delay; 739 tv.tv_sec = (time_t)delay;
576 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); 740 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
577 741
578 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 742 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
579 /* somehting nto guaranteed by newer posix versions, but guaranteed */ 743 /* something not guaranteed by newer posix versions, but guaranteed */
580 /* by older ones */ 744 /* by older ones */
581 select (0, 0, 0, 0, &tv); 745 select (0, 0, 0, 0, &tv);
582#endif 746#endif
583 } 747 }
584} 748}
585 749
586/*****************************************************************************/ 750/*****************************************************************************/
587 751
588#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ 752#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
589 753
590int inline_size 754/* find a suitable new size for the given array, */
755/* hopefully by rounding to a ncie-to-malloc size */
756inline_size int
591array_nextsize (int elem, int cur, int cnt) 757array_nextsize (int elem, int cur, int cnt)
592{ 758{
593 int ncur = cur + 1; 759 int ncur = cur + 1;
594 760
595 do 761 do
… …
636 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ 802 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
637 } 803 }
638#endif 804#endif
639 805
640#define array_free(stem, idx) \ 806#define array_free(stem, idx) \
641 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; 807 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
642 808
643/*****************************************************************************/ 809/*****************************************************************************/
810
811/* dummy callback for pending events */
812static void noinline
813pendingcb (EV_P_ ev_prepare *w, int revents)
814{
815}
644 816
645void noinline 817void noinline
646ev_feed_event (EV_P_ void *w, int revents) 818ev_feed_event (EV_P_ void *w, int revents)
647{ 819{
648 W w_ = (W)w; 820 W w_ = (W)w;
… …
657 pendings [pri][w_->pending - 1].w = w_; 829 pendings [pri][w_->pending - 1].w = w_;
658 pendings [pri][w_->pending - 1].events = revents; 830 pendings [pri][w_->pending - 1].events = revents;
659 } 831 }
660} 832}
661 833
662void inline_speed 834inline_speed void
835feed_reverse (EV_P_ W w)
836{
837 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2);
838 rfeeds [rfeedcnt++] = w;
839}
840
841inline_size void
842feed_reverse_done (EV_P_ int revents)
843{
844 do
845 ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents);
846 while (rfeedcnt);
847}
848
849inline_speed void
663queue_events (EV_P_ W *events, int eventcnt, int type) 850queue_events (EV_P_ W *events, int eventcnt, int type)
664{ 851{
665 int i; 852 int i;
666 853
667 for (i = 0; i < eventcnt; ++i) 854 for (i = 0; i < eventcnt; ++i)
668 ev_feed_event (EV_A_ events [i], type); 855 ev_feed_event (EV_A_ events [i], type);
669} 856}
670 857
671/*****************************************************************************/ 858/*****************************************************************************/
672 859
673void inline_speed 860inline_speed void
674fd_event (EV_P_ int fd, int revents) 861fd_event_nc (EV_P_ int fd, int revents)
675{ 862{
676 ANFD *anfd = anfds + fd; 863 ANFD *anfd = anfds + fd;
677 ev_io *w; 864 ev_io *w;
678 865
679 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 866 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
683 if (ev) 870 if (ev)
684 ev_feed_event (EV_A_ (W)w, ev); 871 ev_feed_event (EV_A_ (W)w, ev);
685 } 872 }
686} 873}
687 874
875/* do not submit kernel events for fds that have reify set */
876/* because that means they changed while we were polling for new events */
877inline_speed void
878fd_event (EV_P_ int fd, int revents)
879{
880 ANFD *anfd = anfds + fd;
881
882 if (expect_true (!anfd->reify))
883 fd_event_nc (EV_A_ fd, revents);
884}
885
688void 886void
689ev_feed_fd_event (EV_P_ int fd, int revents) 887ev_feed_fd_event (EV_P_ int fd, int revents)
690{ 888{
691 if (fd >= 0 && fd < anfdmax) 889 if (fd >= 0 && fd < anfdmax)
692 fd_event (EV_A_ fd, revents); 890 fd_event_nc (EV_A_ fd, revents);
693} 891}
694 892
695void inline_size 893/* make sure the external fd watch events are in-sync */
894/* with the kernel/libev internal state */
895inline_size void
696fd_reify (EV_P) 896fd_reify (EV_P)
697{ 897{
698 int i; 898 int i;
699 899
700 for (i = 0; i < fdchangecnt; ++i) 900 for (i = 0; i < fdchangecnt; ++i)
… …
710 910
711#if EV_SELECT_IS_WINSOCKET 911#if EV_SELECT_IS_WINSOCKET
712 if (events) 912 if (events)
713 { 913 {
714 unsigned long arg; 914 unsigned long arg;
715 #ifdef EV_FD_TO_WIN32_HANDLE
716 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 915 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
717 #else
718 anfd->handle = _get_osfhandle (fd);
719 #endif
720 assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 916 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
721 } 917 }
722#endif 918#endif
723 919
724 { 920 {
725 unsigned char o_events = anfd->events; 921 unsigned char o_events = anfd->events;
726 unsigned char o_reify = anfd->reify; 922 unsigned char o_reify = anfd->reify;
727 923
728 anfd->reify = 0; 924 anfd->reify = 0;
729 anfd->events = events; 925 anfd->events = events;
730 926
731 if (o_events != events || o_reify & EV_IOFDSET) 927 if (o_events != events || o_reify & EV__IOFDSET)
732 backend_modify (EV_A_ fd, o_events, events); 928 backend_modify (EV_A_ fd, o_events, events);
733 } 929 }
734 } 930 }
735 931
736 fdchangecnt = 0; 932 fdchangecnt = 0;
737} 933}
738 934
739void inline_size 935/* something about the given fd changed */
936inline_size void
740fd_change (EV_P_ int fd, int flags) 937fd_change (EV_P_ int fd, int flags)
741{ 938{
742 unsigned char reify = anfds [fd].reify; 939 unsigned char reify = anfds [fd].reify;
743 anfds [fd].reify |= flags; 940 anfds [fd].reify |= flags;
744 941
… …
748 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 945 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
749 fdchanges [fdchangecnt - 1] = fd; 946 fdchanges [fdchangecnt - 1] = fd;
750 } 947 }
751} 948}
752 949
753void inline_speed 950/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
951inline_speed void
754fd_kill (EV_P_ int fd) 952fd_kill (EV_P_ int fd)
755{ 953{
756 ev_io *w; 954 ev_io *w;
757 955
758 while ((w = (ev_io *)anfds [fd].head)) 956 while ((w = (ev_io *)anfds [fd].head))
… …
760 ev_io_stop (EV_A_ w); 958 ev_io_stop (EV_A_ w);
761 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 959 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
762 } 960 }
763} 961}
764 962
765int inline_size 963/* check whether the given fd is atcually valid, for error recovery */
964inline_size int
766fd_valid (int fd) 965fd_valid (int fd)
767{ 966{
768#ifdef _WIN32 967#ifdef _WIN32
769 return _get_osfhandle (fd) != -1; 968 return _get_osfhandle (fd) != -1;
770#else 969#else
… …
792 991
793 for (fd = anfdmax; fd--; ) 992 for (fd = anfdmax; fd--; )
794 if (anfds [fd].events) 993 if (anfds [fd].events)
795 { 994 {
796 fd_kill (EV_A_ fd); 995 fd_kill (EV_A_ fd);
797 return; 996 break;
798 } 997 }
799} 998}
800 999
801/* usually called after fork if backend needs to re-arm all fds from scratch */ 1000/* usually called after fork if backend needs to re-arm all fds from scratch */
802static void noinline 1001static void noinline
… …
807 for (fd = 0; fd < anfdmax; ++fd) 1006 for (fd = 0; fd < anfdmax; ++fd)
808 if (anfds [fd].events) 1007 if (anfds [fd].events)
809 { 1008 {
810 anfds [fd].events = 0; 1009 anfds [fd].events = 0;
811 anfds [fd].emask = 0; 1010 anfds [fd].emask = 0;
812 fd_change (EV_A_ fd, EV_IOFDSET | 1); 1011 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
813 } 1012 }
814} 1013}
815 1014
816/*****************************************************************************/ 1015/*****************************************************************************/
817 1016
… …
833#define HEAP0 (DHEAP - 1) /* index of first element in heap */ 1032#define HEAP0 (DHEAP - 1) /* index of first element in heap */
834#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) 1033#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0)
835#define UPHEAP_DONE(p,k) ((p) == (k)) 1034#define UPHEAP_DONE(p,k) ((p) == (k))
836 1035
837/* away from the root */ 1036/* away from the root */
838void inline_speed 1037inline_speed void
839downheap (ANHE *heap, int N, int k) 1038downheap (ANHE *heap, int N, int k)
840{ 1039{
841 ANHE he = heap [k]; 1040 ANHE he = heap [k];
842 ANHE *E = heap + N + HEAP0; 1041 ANHE *E = heap + N + HEAP0;
843 1042
… …
883#define HEAP0 1 1082#define HEAP0 1
884#define HPARENT(k) ((k) >> 1) 1083#define HPARENT(k) ((k) >> 1)
885#define UPHEAP_DONE(p,k) (!(p)) 1084#define UPHEAP_DONE(p,k) (!(p))
886 1085
887/* away from the root */ 1086/* away from the root */
888void inline_speed 1087inline_speed void
889downheap (ANHE *heap, int N, int k) 1088downheap (ANHE *heap, int N, int k)
890{ 1089{
891 ANHE he = heap [k]; 1090 ANHE he = heap [k];
892 1091
893 for (;;) 1092 for (;;)
894 { 1093 {
895 int c = k << 1; 1094 int c = k << 1;
896 1095
897 if (c > N + HEAP0 - 1) 1096 if (c >= N + HEAP0)
898 break; 1097 break;
899 1098
900 c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) 1099 c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])
901 ? 1 : 0; 1100 ? 1 : 0;
902 1101
… …
913 ev_active (ANHE_w (he)) = k; 1112 ev_active (ANHE_w (he)) = k;
914} 1113}
915#endif 1114#endif
916 1115
917/* towards the root */ 1116/* towards the root */
918void inline_speed 1117inline_speed void
919upheap (ANHE *heap, int k) 1118upheap (ANHE *heap, int k)
920{ 1119{
921 ANHE he = heap [k]; 1120 ANHE he = heap [k];
922 1121
923 for (;;) 1122 for (;;)
… …
934 1133
935 heap [k] = he; 1134 heap [k] = he;
936 ev_active (ANHE_w (he)) = k; 1135 ev_active (ANHE_w (he)) = k;
937} 1136}
938 1137
939void inline_size 1138/* move an element suitably so it is in a correct place */
1139inline_size void
940adjustheap (ANHE *heap, int N, int k) 1140adjustheap (ANHE *heap, int N, int k)
941{ 1141{
942 if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) 1142 if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)]))
943 upheap (heap, k); 1143 upheap (heap, k);
944 else 1144 else
945 downheap (heap, N, k); 1145 downheap (heap, N, k);
946} 1146}
947 1147
948/* rebuild the heap: this function is used only once and executed rarely */ 1148/* rebuild the heap: this function is used only once and executed rarely */
949void inline_size 1149inline_size void
950reheap (ANHE *heap, int N) 1150reheap (ANHE *heap, int N)
951{ 1151{
952 int i; 1152 int i;
953 1153
954 /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ 1154 /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */
… …
957 upheap (heap, i + HEAP0); 1157 upheap (heap, i + HEAP0);
958} 1158}
959 1159
960/*****************************************************************************/ 1160/*****************************************************************************/
961 1161
1162/* associate signal watchers to a signal signal */
962typedef struct 1163typedef struct
963{ 1164{
1165 EV_ATOMIC_T pending;
1166#if EV_MULTIPLICITY
1167 EV_P;
1168#endif
964 WL head; 1169 WL head;
965 EV_ATOMIC_T gotsig;
966} ANSIG; 1170} ANSIG;
967 1171
968static ANSIG *signals; 1172static ANSIG signals [EV_NSIG - 1];
969static int signalmax;
970
971static EV_ATOMIC_T gotsig;
972 1173
973/*****************************************************************************/ 1174/*****************************************************************************/
974 1175
975void inline_speed 1176/* used to prepare libev internal fd's */
1177/* this is not fork-safe */
1178inline_speed void
976fd_intern (int fd) 1179fd_intern (int fd)
977{ 1180{
978#ifdef _WIN32 1181#ifdef _WIN32
979 unsigned long arg = 1; 1182 unsigned long arg = 1;
980 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); 1183 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
… …
985} 1188}
986 1189
987static void noinline 1190static void noinline
988evpipe_init (EV_P) 1191evpipe_init (EV_P)
989{ 1192{
990 if (!ev_is_active (&pipeev)) 1193 if (!ev_is_active (&pipe_w))
991 { 1194 {
992#if EV_USE_EVENTFD 1195#if EV_USE_EVENTFD
1196 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1197 if (evfd < 0 && errno == EINVAL)
993 if ((evfd = eventfd (0, 0)) >= 0) 1198 evfd = eventfd (0, 0);
1199
1200 if (evfd >= 0)
994 { 1201 {
995 evpipe [0] = -1; 1202 evpipe [0] = -1;
996 fd_intern (evfd); 1203 fd_intern (evfd); /* doing it twice doesn't hurt */
997 ev_io_set (&pipeev, evfd, EV_READ); 1204 ev_io_set (&pipe_w, evfd, EV_READ);
998 } 1205 }
999 else 1206 else
1000#endif 1207#endif
1001 { 1208 {
1002 while (pipe (evpipe)) 1209 while (pipe (evpipe))
1003 syserr ("(libev) error creating signal/async pipe"); 1210 ev_syserr ("(libev) error creating signal/async pipe");
1004 1211
1005 fd_intern (evpipe [0]); 1212 fd_intern (evpipe [0]);
1006 fd_intern (evpipe [1]); 1213 fd_intern (evpipe [1]);
1007 ev_io_set (&pipeev, evpipe [0], EV_READ); 1214 ev_io_set (&pipe_w, evpipe [0], EV_READ);
1008 } 1215 }
1009 1216
1010 ev_io_start (EV_A_ &pipeev); 1217 ev_io_start (EV_A_ &pipe_w);
1011 ev_unref (EV_A); /* watcher should not keep loop alive */ 1218 ev_unref (EV_A); /* watcher should not keep loop alive */
1012 } 1219 }
1013} 1220}
1014 1221
1015void inline_size 1222inline_size void
1016evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1223evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1017{ 1224{
1018 if (!*flag) 1225 if (!*flag)
1019 { 1226 {
1020 int old_errno = errno; /* save errno because write might clobber it */ 1227 int old_errno = errno; /* save errno because write might clobber it */
… …
1033 1240
1034 errno = old_errno; 1241 errno = old_errno;
1035 } 1242 }
1036} 1243}
1037 1244
1245/* called whenever the libev signal pipe */
1246/* got some events (signal, async) */
1038static void 1247static void
1039pipecb (EV_P_ ev_io *iow, int revents) 1248pipecb (EV_P_ ev_io *iow, int revents)
1040{ 1249{
1250 int i;
1251
1041#if EV_USE_EVENTFD 1252#if EV_USE_EVENTFD
1042 if (evfd >= 0) 1253 if (evfd >= 0)
1043 { 1254 {
1044 uint64_t counter; 1255 uint64_t counter;
1045 read (evfd, &counter, sizeof (uint64_t)); 1256 read (evfd, &counter, sizeof (uint64_t));
… …
1049 { 1260 {
1050 char dummy; 1261 char dummy;
1051 read (evpipe [0], &dummy, 1); 1262 read (evpipe [0], &dummy, 1);
1052 } 1263 }
1053 1264
1054 if (gotsig && ev_is_default_loop (EV_A)) 1265 if (sig_pending)
1055 { 1266 {
1056 int signum; 1267 sig_pending = 0;
1057 gotsig = 0;
1058 1268
1059 for (signum = signalmax; signum--; ) 1269 for (i = EV_NSIG - 1; i--; )
1060 if (signals [signum].gotsig) 1270 if (expect_false (signals [i].pending))
1061 ev_feed_signal_event (EV_A_ signum + 1); 1271 ev_feed_signal_event (EV_A_ i + 1);
1062 } 1272 }
1063 1273
1064#if EV_ASYNC_ENABLE 1274#if EV_ASYNC_ENABLE
1065 if (gotasync) 1275 if (async_pending)
1066 { 1276 {
1067 int i; 1277 async_pending = 0;
1068 gotasync = 0;
1069 1278
1070 for (i = asynccnt; i--; ) 1279 for (i = asynccnt; i--; )
1071 if (asyncs [i]->sent) 1280 if (asyncs [i]->sent)
1072 { 1281 {
1073 asyncs [i]->sent = 0; 1282 asyncs [i]->sent = 0;
… …
1081 1290
1082static void 1291static void
1083ev_sighandler (int signum) 1292ev_sighandler (int signum)
1084{ 1293{
1085#if EV_MULTIPLICITY 1294#if EV_MULTIPLICITY
1086 struct ev_loop *loop = &default_loop_struct; 1295 EV_P = signals [signum - 1].loop;
1087#endif 1296#endif
1088 1297
1089#if _WIN32 1298#if _WIN32
1090 signal (signum, ev_sighandler); 1299 signal (signum, ev_sighandler);
1091#endif 1300#endif
1092 1301
1093 signals [signum - 1].gotsig = 1; 1302 signals [signum - 1].pending = 1;
1094 evpipe_write (EV_A_ &gotsig); 1303 evpipe_write (EV_A_ &sig_pending);
1095} 1304}
1096 1305
1097void noinline 1306void noinline
1098ev_feed_signal_event (EV_P_ int signum) 1307ev_feed_signal_event (EV_P_ int signum)
1099{ 1308{
1100 WL w; 1309 WL w;
1101 1310
1311 if (expect_false (signum <= 0 || signum > EV_NSIG))
1312 return;
1313
1314 --signum;
1315
1102#if EV_MULTIPLICITY 1316#if EV_MULTIPLICITY
1103 assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); 1317 /* it is permissible to try to feed a signal to the wrong loop */
1104#endif 1318 /* or, likely more useful, feeding a signal nobody is waiting for */
1105 1319
1106 --signum; 1320 if (expect_false (signals [signum].loop != EV_A))
1107
1108 if (signum < 0 || signum >= signalmax)
1109 return; 1321 return;
1322#endif
1110 1323
1111 signals [signum].gotsig = 0; 1324 signals [signum].pending = 0;
1112 1325
1113 for (w = signals [signum].head; w; w = w->next) 1326 for (w = signals [signum].head; w; w = w->next)
1114 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 1327 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1115} 1328}
1116 1329
1330#if EV_USE_SIGNALFD
1331static void
1332sigfdcb (EV_P_ ev_io *iow, int revents)
1333{
1334 struct signalfd_siginfo si[2], *sip; /* these structs are big */
1335
1336 for (;;)
1337 {
1338 ssize_t res = read (sigfd, si, sizeof (si));
1339
1340 /* not ISO-C, as res might be -1, but works with SuS */
1341 for (sip = si; (char *)sip < (char *)si + res; ++sip)
1342 ev_feed_signal_event (EV_A_ sip->ssi_signo);
1343
1344 if (res < (ssize_t)sizeof (si))
1345 break;
1346 }
1347}
1348#endif
1349
1117/*****************************************************************************/ 1350/*****************************************************************************/
1118 1351
1119static WL childs [EV_PID_HASHSIZE]; 1352static WL childs [EV_PID_HASHSIZE];
1120 1353
1121#ifndef _WIN32 1354#ifndef _WIN32
… …
1124 1357
1125#ifndef WIFCONTINUED 1358#ifndef WIFCONTINUED
1126# define WIFCONTINUED(status) 0 1359# define WIFCONTINUED(status) 0
1127#endif 1360#endif
1128 1361
1129void inline_speed 1362/* handle a single child status event */
1363inline_speed void
1130child_reap (EV_P_ int chain, int pid, int status) 1364child_reap (EV_P_ int chain, int pid, int status)
1131{ 1365{
1132 ev_child *w; 1366 ev_child *w;
1133 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 1367 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1134 1368
… …
1147 1381
1148#ifndef WCONTINUED 1382#ifndef WCONTINUED
1149# define WCONTINUED 0 1383# define WCONTINUED 0
1150#endif 1384#endif
1151 1385
1386/* called on sigchld etc., calls waitpid */
1152static void 1387static void
1153childcb (EV_P_ ev_signal *sw, int revents) 1388childcb (EV_P_ ev_signal *sw, int revents)
1154{ 1389{
1155 int pid, status; 1390 int pid, status;
1156 1391
… …
1237 /* kqueue is borked on everything but netbsd apparently */ 1472 /* kqueue is borked on everything but netbsd apparently */
1238 /* it usually doesn't work correctly on anything but sockets and pipes */ 1473 /* it usually doesn't work correctly on anything but sockets and pipes */
1239 flags &= ~EVBACKEND_KQUEUE; 1474 flags &= ~EVBACKEND_KQUEUE;
1240#endif 1475#endif
1241#ifdef __APPLE__ 1476#ifdef __APPLE__
1242 // flags &= ~EVBACKEND_KQUEUE; for documentation 1477 /* only select works correctly on that "unix-certified" platform */
1243 flags &= ~EVBACKEND_POLL; 1478 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1479 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1244#endif 1480#endif
1245 1481
1246 return flags; 1482 return flags;
1247} 1483}
1248 1484
… …
1262ev_backend (EV_P) 1498ev_backend (EV_P)
1263{ 1499{
1264 return backend; 1500 return backend;
1265} 1501}
1266 1502
1503#if EV_MINIMAL < 2
1267unsigned int 1504unsigned int
1268ev_loop_count (EV_P) 1505ev_loop_count (EV_P)
1269{ 1506{
1270 return loop_count; 1507 return loop_count;
1271} 1508}
1272 1509
1510unsigned int
1511ev_loop_depth (EV_P)
1512{
1513 return loop_depth;
1514}
1515
1273void 1516void
1274ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 1517ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
1275{ 1518{
1276 io_blocktime = interval; 1519 io_blocktime = interval;
1277} 1520}
… …
1280ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 1523ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
1281{ 1524{
1282 timeout_blocktime = interval; 1525 timeout_blocktime = interval;
1283} 1526}
1284 1527
1528void
1529ev_set_userdata (EV_P_ void *data)
1530{
1531 userdata = data;
1532}
1533
1534void *
1535ev_userdata (EV_P)
1536{
1537 return userdata;
1538}
1539
1540void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))
1541{
1542 invoke_cb = invoke_pending_cb;
1543}
1544
1545void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))
1546{
1547 release_cb = release;
1548 acquire_cb = acquire;
1549}
1550#endif
1551
1552/* initialise a loop structure, must be zero-initialised */
1285static void noinline 1553static void noinline
1286loop_init (EV_P_ unsigned int flags) 1554loop_init (EV_P_ unsigned int flags)
1287{ 1555{
1288 if (!backend) 1556 if (!backend)
1289 { 1557 {
1558#if EV_USE_REALTIME
1559 if (!have_realtime)
1560 {
1561 struct timespec ts;
1562
1563 if (!clock_gettime (CLOCK_REALTIME, &ts))
1564 have_realtime = 1;
1565 }
1566#endif
1567
1290#if EV_USE_MONOTONIC 1568#if EV_USE_MONOTONIC
1569 if (!have_monotonic)
1291 { 1570 {
1292 struct timespec ts; 1571 struct timespec ts;
1572
1293 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 1573 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1294 have_monotonic = 1; 1574 have_monotonic = 1;
1295 } 1575 }
1296#endif 1576#endif
1577
1578 /* pid check not overridable via env */
1579#ifndef _WIN32
1580 if (flags & EVFLAG_FORKCHECK)
1581 curpid = getpid ();
1582#endif
1583
1584 if (!(flags & EVFLAG_NOENV)
1585 && !enable_secure ()
1586 && getenv ("LIBEV_FLAGS"))
1587 flags = atoi (getenv ("LIBEV_FLAGS"));
1297 1588
1298 ev_rt_now = ev_time (); 1589 ev_rt_now = ev_time ();
1299 mn_now = get_clock (); 1590 mn_now = get_clock ();
1300 now_floor = mn_now; 1591 now_floor = mn_now;
1301 rtmn_diff = ev_rt_now - mn_now; 1592 rtmn_diff = ev_rt_now - mn_now;
1593#if EV_MINIMAL < 2
1594 invoke_cb = ev_invoke_pending;
1595#endif
1302 1596
1303 io_blocktime = 0.; 1597 io_blocktime = 0.;
1304 timeout_blocktime = 0.; 1598 timeout_blocktime = 0.;
1305 backend = 0; 1599 backend = 0;
1306 backend_fd = -1; 1600 backend_fd = -1;
1307 gotasync = 0; 1601 sig_pending = 0;
1602#if EV_ASYNC_ENABLE
1603 async_pending = 0;
1604#endif
1308#if EV_USE_INOTIFY 1605#if EV_USE_INOTIFY
1309 fs_fd = -2; 1606 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1310#endif 1607#endif
1311 1608#if EV_USE_SIGNALFD
1312 /* pid check not overridable via env */ 1609 sigfd = flags & EVFLAG_NOSIGFD ? -1 : -2;
1313#ifndef _WIN32
1314 if (flags & EVFLAG_FORKCHECK)
1315 curpid = getpid ();
1316#endif 1610#endif
1317
1318 if (!(flags & EVFLAG_NOENV)
1319 && !enable_secure ()
1320 && getenv ("LIBEV_FLAGS"))
1321 flags = atoi (getenv ("LIBEV_FLAGS"));
1322 1611
1323 if (!(flags & 0x0000ffffU)) 1612 if (!(flags & 0x0000ffffU))
1324 flags |= ev_recommended_backends (); 1613 flags |= ev_recommended_backends ();
1325 1614
1326#if EV_USE_PORT 1615#if EV_USE_PORT
… …
1337#endif 1626#endif
1338#if EV_USE_SELECT 1627#if EV_USE_SELECT
1339 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 1628 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1340#endif 1629#endif
1341 1630
1631 ev_prepare_init (&pending_w, pendingcb);
1632
1342 ev_init (&pipeev, pipecb); 1633 ev_init (&pipe_w, pipecb);
1343 ev_set_priority (&pipeev, EV_MAXPRI); 1634 ev_set_priority (&pipe_w, EV_MAXPRI);
1344 } 1635 }
1345} 1636}
1346 1637
1638/* free up a loop structure */
1347static void noinline 1639static void noinline
1348loop_destroy (EV_P) 1640loop_destroy (EV_P)
1349{ 1641{
1350 int i; 1642 int i;
1351 1643
1352 if (ev_is_active (&pipeev)) 1644 if (ev_is_active (&pipe_w))
1353 { 1645 {
1354 ev_ref (EV_A); /* signal watcher */ 1646 /*ev_ref (EV_A);*/
1355 ev_io_stop (EV_A_ &pipeev); 1647 /*ev_io_stop (EV_A_ &pipe_w);*/
1356 1648
1357#if EV_USE_EVENTFD 1649#if EV_USE_EVENTFD
1358 if (evfd >= 0) 1650 if (evfd >= 0)
1359 close (evfd); 1651 close (evfd);
1360#endif 1652#endif
1361 1653
1362 if (evpipe [0] >= 0) 1654 if (evpipe [0] >= 0)
1363 { 1655 {
1364 close (evpipe [0]); 1656 EV_WIN32_CLOSE_FD (evpipe [0]);
1365 close (evpipe [1]); 1657 EV_WIN32_CLOSE_FD (evpipe [1]);
1366 } 1658 }
1367 } 1659 }
1660
1661#if EV_USE_SIGNALFD
1662 if (ev_is_active (&sigfd_w))
1663 close (sigfd);
1664#endif
1368 1665
1369#if EV_USE_INOTIFY 1666#if EV_USE_INOTIFY
1370 if (fs_fd >= 0) 1667 if (fs_fd >= 0)
1371 close (fs_fd); 1668 close (fs_fd);
1372#endif 1669#endif
… …
1396#if EV_IDLE_ENABLE 1693#if EV_IDLE_ENABLE
1397 array_free (idle, [i]); 1694 array_free (idle, [i]);
1398#endif 1695#endif
1399 } 1696 }
1400 1697
1401 ev_free (anfds); anfdmax = 0; 1698 ev_free (anfds); anfds = 0; anfdmax = 0;
1402 1699
1403 /* have to use the microsoft-never-gets-it-right macro */ 1700 /* have to use the microsoft-never-gets-it-right macro */
1701 array_free (rfeed, EMPTY);
1404 array_free (fdchange, EMPTY); 1702 array_free (fdchange, EMPTY);
1405 array_free (timer, EMPTY); 1703 array_free (timer, EMPTY);
1406#if EV_PERIODIC_ENABLE 1704#if EV_PERIODIC_ENABLE
1407 array_free (periodic, EMPTY); 1705 array_free (periodic, EMPTY);
1408#endif 1706#endif
… …
1417 1715
1418 backend = 0; 1716 backend = 0;
1419} 1717}
1420 1718
1421#if EV_USE_INOTIFY 1719#if EV_USE_INOTIFY
1422void inline_size infy_fork (EV_P); 1720inline_size void infy_fork (EV_P);
1423#endif 1721#endif
1424 1722
1425void inline_size 1723inline_size void
1426loop_fork (EV_P) 1724loop_fork (EV_P)
1427{ 1725{
1428#if EV_USE_PORT 1726#if EV_USE_PORT
1429 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 1727 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
1430#endif 1728#endif
… …
1436#endif 1734#endif
1437#if EV_USE_INOTIFY 1735#if EV_USE_INOTIFY
1438 infy_fork (EV_A); 1736 infy_fork (EV_A);
1439#endif 1737#endif
1440 1738
1441 if (ev_is_active (&pipeev)) 1739 if (ev_is_active (&pipe_w))
1442 { 1740 {
1443 /* this "locks" the handlers against writing to the pipe */ 1741 /* this "locks" the handlers against writing to the pipe */
1444 /* while we modify the fd vars */ 1742 /* while we modify the fd vars */
1445 gotsig = 1; 1743 sig_pending = 1;
1446#if EV_ASYNC_ENABLE 1744#if EV_ASYNC_ENABLE
1447 gotasync = 1; 1745 async_pending = 1;
1448#endif 1746#endif
1449 1747
1450 ev_ref (EV_A); 1748 ev_ref (EV_A);
1451 ev_io_stop (EV_A_ &pipeev); 1749 ev_io_stop (EV_A_ &pipe_w);
1452 1750
1453#if EV_USE_EVENTFD 1751#if EV_USE_EVENTFD
1454 if (evfd >= 0) 1752 if (evfd >= 0)
1455 close (evfd); 1753 close (evfd);
1456#endif 1754#endif
1457 1755
1458 if (evpipe [0] >= 0) 1756 if (evpipe [0] >= 0)
1459 { 1757 {
1460 close (evpipe [0]); 1758 EV_WIN32_CLOSE_FD (evpipe [0]);
1461 close (evpipe [1]); 1759 EV_WIN32_CLOSE_FD (evpipe [1]);
1462 } 1760 }
1463 1761
1464 evpipe_init (EV_A); 1762 evpipe_init (EV_A);
1465 /* now iterate over everything, in case we missed something */ 1763 /* now iterate over everything, in case we missed something */
1466 pipecb (EV_A_ &pipeev, EV_READ); 1764 pipecb (EV_A_ &pipe_w, EV_READ);
1467 } 1765 }
1468 1766
1469 postfork = 0; 1767 postfork = 0;
1470} 1768}
1471 1769
1472#if EV_MULTIPLICITY 1770#if EV_MULTIPLICITY
1473 1771
1474struct ev_loop * 1772struct ev_loop *
1475ev_loop_new (unsigned int flags) 1773ev_loop_new (unsigned int flags)
1476{ 1774{
1477 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 1775 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1478 1776
1479 memset (loop, 0, sizeof (struct ev_loop)); 1777 memset (EV_A, 0, sizeof (struct ev_loop));
1480
1481 loop_init (EV_A_ flags); 1778 loop_init (EV_A_ flags);
1482 1779
1483 if (ev_backend (EV_A)) 1780 if (ev_backend (EV_A))
1484 return loop; 1781 return EV_A;
1485 1782
1486 return 0; 1783 return 0;
1487} 1784}
1488 1785
1489void 1786void
… …
1496void 1793void
1497ev_loop_fork (EV_P) 1794ev_loop_fork (EV_P)
1498{ 1795{
1499 postfork = 1; /* must be in line with ev_default_fork */ 1796 postfork = 1; /* must be in line with ev_default_fork */
1500} 1797}
1798#endif /* multiplicity */
1501 1799
1502#if EV_VERIFY 1800#if EV_VERIFY
1503static void noinline 1801static void noinline
1504verify_watcher (EV_P_ W w) 1802verify_watcher (EV_P_ W w)
1505{ 1803{
1506 assert (("watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 1804 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1507 1805
1508 if (w->pending) 1806 if (w->pending)
1509 assert (("pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 1807 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1510} 1808}
1511 1809
1512static void noinline 1810static void noinline
1513verify_heap (EV_P_ ANHE *heap, int N) 1811verify_heap (EV_P_ ANHE *heap, int N)
1514{ 1812{
1515 int i; 1813 int i;
1516 1814
1517 for (i = HEAP0; i < N + HEAP0; ++i) 1815 for (i = HEAP0; i < N + HEAP0; ++i)
1518 { 1816 {
1519 assert (("active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); 1817 assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i));
1520 assert (("heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); 1818 assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i])));
1521 assert (("heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); 1819 assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i]))));
1522 1820
1523 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 1821 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1524 } 1822 }
1525} 1823}
1526 1824
1527static void noinline 1825static void noinline
1528array_verify (EV_P_ W *ws, int cnt) 1826array_verify (EV_P_ W *ws, int cnt)
1529{ 1827{
1530 while (cnt--) 1828 while (cnt--)
1531 { 1829 {
1532 assert (("active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 1830 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1533 verify_watcher (EV_A_ ws [cnt]); 1831 verify_watcher (EV_A_ ws [cnt]);
1534 } 1832 }
1535} 1833}
1536#endif 1834#endif
1537 1835
1836#if EV_MINIMAL < 2
1538void 1837void
1539ev_loop_verify (EV_P) 1838ev_loop_verify (EV_P)
1540{ 1839{
1541#if EV_VERIFY 1840#if EV_VERIFY
1542 int i; 1841 int i;
… …
1544 1843
1545 assert (activecnt >= -1); 1844 assert (activecnt >= -1);
1546 1845
1547 assert (fdchangemax >= fdchangecnt); 1846 assert (fdchangemax >= fdchangecnt);
1548 for (i = 0; i < fdchangecnt; ++i) 1847 for (i = 0; i < fdchangecnt; ++i)
1549 assert (("negative fd in fdchanges", fdchanges [i] >= 0)); 1848 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
1550 1849
1551 assert (anfdmax >= 0); 1850 assert (anfdmax >= 0);
1552 for (i = 0; i < anfdmax; ++i) 1851 for (i = 0; i < anfdmax; ++i)
1553 for (w = anfds [i].head; w; w = w->next) 1852 for (w = anfds [i].head; w; w = w->next)
1554 { 1853 {
1555 verify_watcher (EV_A_ (W)w); 1854 verify_watcher (EV_A_ (W)w);
1556 assert (("inactive fd watcher on anfd list", ev_active (w) == 1)); 1855 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
1557 assert (("fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); 1856 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
1558 } 1857 }
1559 1858
1560 assert (timermax >= timercnt); 1859 assert (timermax >= timercnt);
1561 verify_heap (EV_A_ timers, timercnt); 1860 verify_heap (EV_A_ timers, timercnt);
1562 1861
… …
1591 assert (checkmax >= checkcnt); 1890 assert (checkmax >= checkcnt);
1592 array_verify (EV_A_ (W *)checks, checkcnt); 1891 array_verify (EV_A_ (W *)checks, checkcnt);
1593 1892
1594# if 0 1893# if 0
1595 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 1894 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
1596 for (signum = signalmax; signum--; ) if (signals [signum].gotsig) 1895 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
1597# endif
1598#endif 1896# endif
1897#endif
1599} 1898}
1600 1899#endif
1601#endif /* multiplicity */
1602 1900
1603#if EV_MULTIPLICITY 1901#if EV_MULTIPLICITY
1604struct ev_loop * 1902struct ev_loop *
1605ev_default_loop_init (unsigned int flags) 1903ev_default_loop_init (unsigned int flags)
1606#else 1904#else
… …
1609#endif 1907#endif
1610{ 1908{
1611 if (!ev_default_loop_ptr) 1909 if (!ev_default_loop_ptr)
1612 { 1910 {
1613#if EV_MULTIPLICITY 1911#if EV_MULTIPLICITY
1614 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; 1912 EV_P = ev_default_loop_ptr = &default_loop_struct;
1615#else 1913#else
1616 ev_default_loop_ptr = 1; 1914 ev_default_loop_ptr = 1;
1617#endif 1915#endif
1618 1916
1619 loop_init (EV_A_ flags); 1917 loop_init (EV_A_ flags);
… …
1636 1934
1637void 1935void
1638ev_default_destroy (void) 1936ev_default_destroy (void)
1639{ 1937{
1640#if EV_MULTIPLICITY 1938#if EV_MULTIPLICITY
1641 struct ev_loop *loop = ev_default_loop_ptr; 1939 EV_P = ev_default_loop_ptr;
1642#endif 1940#endif
1643 1941
1644 ev_default_loop_ptr = 0; 1942 ev_default_loop_ptr = 0;
1645 1943
1646#ifndef _WIN32 1944#ifndef _WIN32
… …
1653 1951
1654void 1952void
1655ev_default_fork (void) 1953ev_default_fork (void)
1656{ 1954{
1657#if EV_MULTIPLICITY 1955#if EV_MULTIPLICITY
1658 struct ev_loop *loop = ev_default_loop_ptr; 1956 EV_P = ev_default_loop_ptr;
1659#endif 1957#endif
1660 1958
1661 if (backend)
1662 postfork = 1; /* must be in line with ev_loop_fork */ 1959 postfork = 1; /* must be in line with ev_loop_fork */
1663} 1960}
1664 1961
1665/*****************************************************************************/ 1962/*****************************************************************************/
1666 1963
1667void 1964void
1668ev_invoke (EV_P_ void *w, int revents) 1965ev_invoke (EV_P_ void *w, int revents)
1669{ 1966{
1670 EV_CB_INVOKE ((W)w, revents); 1967 EV_CB_INVOKE ((W)w, revents);
1671} 1968}
1672 1969
1673void inline_speed 1970unsigned int
1674call_pending (EV_P) 1971ev_pending_count (EV_P)
1972{
1973 int pri;
1974 unsigned int count = 0;
1975
1976 for (pri = NUMPRI; pri--; )
1977 count += pendingcnt [pri];
1978
1979 return count;
1980}
1981
1982void noinline
1983ev_invoke_pending (EV_P)
1675{ 1984{
1676 int pri; 1985 int pri;
1677 1986
1678 for (pri = NUMPRI; pri--; ) 1987 for (pri = NUMPRI; pri--; )
1679 while (pendingcnt [pri]) 1988 while (pendingcnt [pri])
1680 { 1989 {
1681 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 1990 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1682 1991
1683 if (expect_true (p->w))
1684 {
1685 /*assert (("non-pending watcher on pending list", p->w->pending));*/ 1992 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
1993 /* ^ this is no longer true, as pending_w could be here */
1686 1994
1687 p->w->pending = 0; 1995 p->w->pending = 0;
1688 EV_CB_INVOKE (p->w, p->events); 1996 EV_CB_INVOKE (p->w, p->events);
1689 EV_FREQUENT_CHECK; 1997 EV_FREQUENT_CHECK;
1690 }
1691 } 1998 }
1692} 1999}
1693 2000
1694#if EV_IDLE_ENABLE 2001#if EV_IDLE_ENABLE
1695void inline_size 2002/* make idle watchers pending. this handles the "call-idle */
2003/* only when higher priorities are idle" logic */
2004inline_size void
1696idle_reify (EV_P) 2005idle_reify (EV_P)
1697{ 2006{
1698 if (expect_false (idleall)) 2007 if (expect_false (idleall))
1699 { 2008 {
1700 int pri; 2009 int pri;
… …
1712 } 2021 }
1713 } 2022 }
1714} 2023}
1715#endif 2024#endif
1716 2025
1717void inline_size 2026/* make timers pending */
2027inline_size void
1718timers_reify (EV_P) 2028timers_reify (EV_P)
1719{ 2029{
1720 EV_FREQUENT_CHECK; 2030 EV_FREQUENT_CHECK;
1721 2031
1722 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now) 2032 if (timercnt && ANHE_at (timers [HEAP0]) < mn_now)
1723 { 2033 {
1724 ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); 2034 do
1725
1726 /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
1727
1728 /* first reschedule or stop timer */
1729 if (w->repeat)
1730 { 2035 {
2036 ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]);
2037
2038 /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/
2039
2040 /* first reschedule or stop timer */
2041 if (w->repeat)
2042 {
1731 ev_at (w) += w->repeat; 2043 ev_at (w) += w->repeat;
1732 if (ev_at (w) < mn_now) 2044 if (ev_at (w) < mn_now)
1733 ev_at (w) = mn_now; 2045 ev_at (w) = mn_now;
1734 2046
1735 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); 2047 assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1736 2048
1737 ANHE_at_cache (timers [HEAP0]); 2049 ANHE_at_cache (timers [HEAP0]);
1738 downheap (timers, timercnt, HEAP0); 2050 downheap (timers, timercnt, HEAP0);
2051 }
2052 else
2053 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
2054
2055 EV_FREQUENT_CHECK;
2056 feed_reverse (EV_A_ (W)w);
1739 } 2057 }
1740 else 2058 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
1741 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1742 2059
1743 EV_FREQUENT_CHECK;
1744 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); 2060 feed_reverse_done (EV_A_ EV_TIMEOUT);
1745 } 2061 }
1746} 2062}
1747 2063
1748#if EV_PERIODIC_ENABLE 2064#if EV_PERIODIC_ENABLE
1749void inline_size 2065/* make periodics pending */
2066inline_size void
1750periodics_reify (EV_P) 2067periodics_reify (EV_P)
1751{ 2068{
1752 EV_FREQUENT_CHECK; 2069 EV_FREQUENT_CHECK;
1753 2070
1754 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 2071 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
1755 { 2072 {
1756 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 2073 int feed_count = 0;
1757 2074
1758 /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ 2075 do
1759
1760 /* first reschedule or stop timer */
1761 if (w->reschedule_cb)
1762 { 2076 {
2077 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2078
2079 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
2080
2081 /* first reschedule or stop timer */
2082 if (w->reschedule_cb)
2083 {
1763 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2084 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1764 2085
1765 assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); 2086 assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now));
1766 2087
1767 ANHE_at_cache (periodics [HEAP0]); 2088 ANHE_at_cache (periodics [HEAP0]);
1768 downheap (periodics, periodiccnt, HEAP0); 2089 downheap (periodics, periodiccnt, HEAP0);
2090 }
2091 else if (w->interval)
2092 {
2093 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2094 /* if next trigger time is not sufficiently in the future, put it there */
2095 /* this might happen because of floating point inexactness */
2096 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
2097 {
2098 ev_at (w) += w->interval;
2099
2100 /* if interval is unreasonably low we might still have a time in the past */
2101 /* so correct this. this will make the periodic very inexact, but the user */
2102 /* has effectively asked to get triggered more often than possible */
2103 if (ev_at (w) < ev_rt_now)
2104 ev_at (w) = ev_rt_now;
2105 }
2106
2107 ANHE_at_cache (periodics [HEAP0]);
2108 downheap (periodics, periodiccnt, HEAP0);
2109 }
2110 else
2111 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
2112
2113 EV_FREQUENT_CHECK;
2114 feed_reverse (EV_A_ (W)w);
1769 } 2115 }
1770 else if (w->interval) 2116 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now);
1771 {
1772 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1773 /* if next trigger time is not sufficiently in the future, put it there */
1774 /* this might happen because of floating point inexactness */
1775 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
1776 {
1777 ev_at (w) += w->interval;
1778 2117
1779 /* if interval is unreasonably low we might still have a time in the past */
1780 /* so correct this. this will make the periodic very inexact, but the user */
1781 /* has effectively asked to get triggered more often than possible */
1782 if (ev_at (w) < ev_rt_now)
1783 ev_at (w) = ev_rt_now;
1784 }
1785
1786 ANHE_at_cache (periodics [HEAP0]);
1787 downheap (periodics, periodiccnt, HEAP0);
1788 }
1789 else
1790 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1791
1792 EV_FREQUENT_CHECK;
1793 ev_feed_event (EV_A_ (W)w, EV_PERIODIC); 2118 feed_reverse_done (EV_A_ EV_PERIODIC);
1794 } 2119 }
1795} 2120}
1796 2121
2122/* simply recalculate all periodics */
2123/* TODO: maybe ensure that at leats one event happens when jumping forward? */
1797static void noinline 2124static void noinline
1798periodics_reschedule (EV_P) 2125periodics_reschedule (EV_P)
1799{ 2126{
1800 int i; 2127 int i;
1801 2128
… …
1814 2141
1815 reheap (periodics, periodiccnt); 2142 reheap (periodics, periodiccnt);
1816} 2143}
1817#endif 2144#endif
1818 2145
1819void inline_speed 2146/* adjust all timers by a given offset */
2147static void noinline
2148timers_reschedule (EV_P_ ev_tstamp adjust)
2149{
2150 int i;
2151
2152 for (i = 0; i < timercnt; ++i)
2153 {
2154 ANHE *he = timers + i + HEAP0;
2155 ANHE_w (*he)->at += adjust;
2156 ANHE_at_cache (*he);
2157 }
2158}
2159
2160/* fetch new monotonic and realtime times from the kernel */
2161/* also detetc if there was a timejump, and act accordingly */
2162inline_speed void
1820time_update (EV_P_ ev_tstamp max_block) 2163time_update (EV_P_ ev_tstamp max_block)
1821{ 2164{
1822 int i;
1823
1824#if EV_USE_MONOTONIC 2165#if EV_USE_MONOTONIC
1825 if (expect_true (have_monotonic)) 2166 if (expect_true (have_monotonic))
1826 { 2167 {
2168 int i;
1827 ev_tstamp odiff = rtmn_diff; 2169 ev_tstamp odiff = rtmn_diff;
1828 2170
1829 mn_now = get_clock (); 2171 mn_now = get_clock ();
1830 2172
1831 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ 2173 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
… …
1857 ev_rt_now = ev_time (); 2199 ev_rt_now = ev_time ();
1858 mn_now = get_clock (); 2200 mn_now = get_clock ();
1859 now_floor = mn_now; 2201 now_floor = mn_now;
1860 } 2202 }
1861 2203
2204 /* no timer adjustment, as the monotonic clock doesn't jump */
2205 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1862# if EV_PERIODIC_ENABLE 2206# if EV_PERIODIC_ENABLE
1863 periodics_reschedule (EV_A); 2207 periodics_reschedule (EV_A);
1864# endif 2208# endif
1865 /* no timer adjustment, as the monotonic clock doesn't jump */
1866 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1867 } 2209 }
1868 else 2210 else
1869#endif 2211#endif
1870 { 2212 {
1871 ev_rt_now = ev_time (); 2213 ev_rt_now = ev_time ();
1872 2214
1873 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) 2215 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
1874 { 2216 {
2217 /* adjust timers. this is easy, as the offset is the same for all of them */
2218 timers_reschedule (EV_A_ ev_rt_now - mn_now);
1875#if EV_PERIODIC_ENABLE 2219#if EV_PERIODIC_ENABLE
1876 periodics_reschedule (EV_A); 2220 periodics_reschedule (EV_A);
1877#endif 2221#endif
1878 /* adjust timers. this is easy, as the offset is the same for all of them */
1879 for (i = 0; i < timercnt; ++i)
1880 {
1881 ANHE *he = timers + i + HEAP0;
1882 ANHE_w (*he)->at += ev_rt_now - mn_now;
1883 ANHE_at_cache (*he);
1884 }
1885 } 2222 }
1886 2223
1887 mn_now = ev_rt_now; 2224 mn_now = ev_rt_now;
1888 } 2225 }
1889} 2226}
1890 2227
1891void 2228void
1892ev_ref (EV_P)
1893{
1894 ++activecnt;
1895}
1896
1897void
1898ev_unref (EV_P)
1899{
1900 --activecnt;
1901}
1902
1903void
1904ev_now_update (EV_P)
1905{
1906 time_update (EV_A_ 1e100);
1907}
1908
1909static int loop_done;
1910
1911void
1912ev_loop (EV_P_ int flags) 2229ev_loop (EV_P_ int flags)
1913{ 2230{
2231#if EV_MINIMAL < 2
2232 ++loop_depth;
2233#endif
2234
2235 assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE));
2236
1914 loop_done = EVUNLOOP_CANCEL; 2237 loop_done = EVUNLOOP_CANCEL;
1915 2238
1916 call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ 2239 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
1917 2240
1918 do 2241 do
1919 { 2242 {
1920#if EV_VERIFY >= 2 2243#if EV_VERIFY >= 2
1921 ev_loop_verify (EV_A); 2244 ev_loop_verify (EV_A);
… …
1934 /* we might have forked, so queue fork handlers */ 2257 /* we might have forked, so queue fork handlers */
1935 if (expect_false (postfork)) 2258 if (expect_false (postfork))
1936 if (forkcnt) 2259 if (forkcnt)
1937 { 2260 {
1938 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2261 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
1939 call_pending (EV_A); 2262 EV_INVOKE_PENDING;
1940 } 2263 }
1941#endif 2264#endif
1942 2265
1943 /* queue prepare watchers (and execute them) */ 2266 /* queue prepare watchers (and execute them) */
1944 if (expect_false (preparecnt)) 2267 if (expect_false (preparecnt))
1945 { 2268 {
1946 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 2269 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1947 call_pending (EV_A); 2270 EV_INVOKE_PENDING;
1948 } 2271 }
1949 2272
1950 if (expect_false (!activecnt)) 2273 if (expect_false (loop_done))
1951 break; 2274 break;
1952 2275
1953 /* we might have forked, so reify kernel state if necessary */ 2276 /* we might have forked, so reify kernel state if necessary */
1954 if (expect_false (postfork)) 2277 if (expect_false (postfork))
1955 loop_fork (EV_A); 2278 loop_fork (EV_A);
… …
1962 ev_tstamp waittime = 0.; 2285 ev_tstamp waittime = 0.;
1963 ev_tstamp sleeptime = 0.; 2286 ev_tstamp sleeptime = 0.;
1964 2287
1965 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 2288 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))
1966 { 2289 {
2290 /* remember old timestamp for io_blocktime calculation */
2291 ev_tstamp prev_mn_now = mn_now;
2292
1967 /* update time to cancel out callback processing overhead */ 2293 /* update time to cancel out callback processing overhead */
1968 time_update (EV_A_ 1e100); 2294 time_update (EV_A_ 1e100);
1969 2295
1970 waittime = MAX_BLOCKTIME; 2296 waittime = MAX_BLOCKTIME;
1971 2297
… …
1981 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 2307 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge;
1982 if (waittime > to) waittime = to; 2308 if (waittime > to) waittime = to;
1983 } 2309 }
1984#endif 2310#endif
1985 2311
2312 /* don't let timeouts decrease the waittime below timeout_blocktime */
1986 if (expect_false (waittime < timeout_blocktime)) 2313 if (expect_false (waittime < timeout_blocktime))
1987 waittime = timeout_blocktime; 2314 waittime = timeout_blocktime;
1988 2315
1989 sleeptime = waittime - backend_fudge; 2316 /* extra check because io_blocktime is commonly 0 */
1990
1991 if (expect_true (sleeptime > io_blocktime)) 2317 if (expect_false (io_blocktime))
1992 sleeptime = io_blocktime;
1993
1994 if (sleeptime)
1995 { 2318 {
2319 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2320
2321 if (sleeptime > waittime - backend_fudge)
2322 sleeptime = waittime - backend_fudge;
2323
2324 if (expect_true (sleeptime > 0.))
2325 {
1996 ev_sleep (sleeptime); 2326 ev_sleep (sleeptime);
1997 waittime -= sleeptime; 2327 waittime -= sleeptime;
2328 }
1998 } 2329 }
1999 } 2330 }
2000 2331
2332#if EV_MINIMAL < 2
2001 ++loop_count; 2333 ++loop_count;
2334#endif
2335 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */
2002 backend_poll (EV_A_ waittime); 2336 backend_poll (EV_A_ waittime);
2337 assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */
2003 2338
2004 /* update ev_rt_now, do magic */ 2339 /* update ev_rt_now, do magic */
2005 time_update (EV_A_ waittime + sleeptime); 2340 time_update (EV_A_ waittime + sleeptime);
2006 } 2341 }
2007 2342
… …
2018 2353
2019 /* queue check watchers, to be executed first */ 2354 /* queue check watchers, to be executed first */
2020 if (expect_false (checkcnt)) 2355 if (expect_false (checkcnt))
2021 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 2356 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
2022 2357
2023 call_pending (EV_A); 2358 EV_INVOKE_PENDING;
2024 } 2359 }
2025 while (expect_true ( 2360 while (expect_true (
2026 activecnt 2361 activecnt
2027 && !loop_done 2362 && !loop_done
2028 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 2363 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK))
2029 )); 2364 ));
2030 2365
2031 if (loop_done == EVUNLOOP_ONE) 2366 if (loop_done == EVUNLOOP_ONE)
2032 loop_done = EVUNLOOP_CANCEL; 2367 loop_done = EVUNLOOP_CANCEL;
2368
2369#if EV_MINIMAL < 2
2370 --loop_depth;
2371#endif
2033} 2372}
2034 2373
2035void 2374void
2036ev_unloop (EV_P_ int how) 2375ev_unloop (EV_P_ int how)
2037{ 2376{
2038 loop_done = how; 2377 loop_done = how;
2039} 2378}
2040 2379
2380void
2381ev_ref (EV_P)
2382{
2383 ++activecnt;
2384}
2385
2386void
2387ev_unref (EV_P)
2388{
2389 --activecnt;
2390}
2391
2392void
2393ev_now_update (EV_P)
2394{
2395 time_update (EV_A_ 1e100);
2396}
2397
2398void
2399ev_suspend (EV_P)
2400{
2401 ev_now_update (EV_A);
2402}
2403
2404void
2405ev_resume (EV_P)
2406{
2407 ev_tstamp mn_prev = mn_now;
2408
2409 ev_now_update (EV_A);
2410 timers_reschedule (EV_A_ mn_now - mn_prev);
2411#if EV_PERIODIC_ENABLE
2412 /* TODO: really do this? */
2413 periodics_reschedule (EV_A);
2414#endif
2415}
2416
2041/*****************************************************************************/ 2417/*****************************************************************************/
2418/* singly-linked list management, used when the expected list length is short */
2042 2419
2043void inline_size 2420inline_size void
2044wlist_add (WL *head, WL elem) 2421wlist_add (WL *head, WL elem)
2045{ 2422{
2046 elem->next = *head; 2423 elem->next = *head;
2047 *head = elem; 2424 *head = elem;
2048} 2425}
2049 2426
2050void inline_size 2427inline_size void
2051wlist_del (WL *head, WL elem) 2428wlist_del (WL *head, WL elem)
2052{ 2429{
2053 while (*head) 2430 while (*head)
2054 { 2431 {
2055 if (*head == elem) 2432 if (expect_true (*head == elem))
2056 { 2433 {
2057 *head = elem->next; 2434 *head = elem->next;
2058 return; 2435 break;
2059 } 2436 }
2060 2437
2061 head = &(*head)->next; 2438 head = &(*head)->next;
2062 } 2439 }
2063} 2440}
2064 2441
2065void inline_speed 2442/* internal, faster, version of ev_clear_pending */
2443inline_speed void
2066clear_pending (EV_P_ W w) 2444clear_pending (EV_P_ W w)
2067{ 2445{
2068 if (w->pending) 2446 if (w->pending)
2069 { 2447 {
2070 pendings [ABSPRI (w)][w->pending - 1].w = 0; 2448 pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w;
2071 w->pending = 0; 2449 w->pending = 0;
2072 } 2450 }
2073} 2451}
2074 2452
2075int 2453int
… …
2079 int pending = w_->pending; 2457 int pending = w_->pending;
2080 2458
2081 if (expect_true (pending)) 2459 if (expect_true (pending))
2082 { 2460 {
2083 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; 2461 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
2462 p->w = (W)&pending_w;
2084 w_->pending = 0; 2463 w_->pending = 0;
2085 p->w = 0;
2086 return p->events; 2464 return p->events;
2087 } 2465 }
2088 else 2466 else
2089 return 0; 2467 return 0;
2090} 2468}
2091 2469
2092void inline_size 2470inline_size void
2093pri_adjust (EV_P_ W w) 2471pri_adjust (EV_P_ W w)
2094{ 2472{
2095 int pri = w->priority; 2473 int pri = ev_priority (w);
2096 pri = pri < EV_MINPRI ? EV_MINPRI : pri; 2474 pri = pri < EV_MINPRI ? EV_MINPRI : pri;
2097 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; 2475 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
2098 w->priority = pri; 2476 ev_set_priority (w, pri);
2099} 2477}
2100 2478
2101void inline_speed 2479inline_speed void
2102ev_start (EV_P_ W w, int active) 2480ev_start (EV_P_ W w, int active)
2103{ 2481{
2104 pri_adjust (EV_A_ w); 2482 pri_adjust (EV_A_ w);
2105 w->active = active; 2483 w->active = active;
2106 ev_ref (EV_A); 2484 ev_ref (EV_A);
2107} 2485}
2108 2486
2109void inline_size 2487inline_size void
2110ev_stop (EV_P_ W w) 2488ev_stop (EV_P_ W w)
2111{ 2489{
2112 ev_unref (EV_A); 2490 ev_unref (EV_A);
2113 w->active = 0; 2491 w->active = 0;
2114} 2492}
… …
2121 int fd = w->fd; 2499 int fd = w->fd;
2122 2500
2123 if (expect_false (ev_is_active (w))) 2501 if (expect_false (ev_is_active (w)))
2124 return; 2502 return;
2125 2503
2126 assert (("ev_io_start called with negative fd", fd >= 0)); 2504 assert (("libev: ev_io_start called with negative fd", fd >= 0));
2127 assert (("ev_io start called with illegal event mask", !(w->events & ~(EV_IOFDSET | EV_READ | EV_WRITE)))); 2505 assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2128 2506
2129 EV_FREQUENT_CHECK; 2507 EV_FREQUENT_CHECK;
2130 2508
2131 ev_start (EV_A_ (W)w, 1); 2509 ev_start (EV_A_ (W)w, 1);
2132 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 2510 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2133 wlist_add (&anfds[fd].head, (WL)w); 2511 wlist_add (&anfds[fd].head, (WL)w);
2134 2512
2135 fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); 2513 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2136 w->events &= ~EV_IOFDSET; 2514 w->events &= ~EV__IOFDSET;
2137 2515
2138 EV_FREQUENT_CHECK; 2516 EV_FREQUENT_CHECK;
2139} 2517}
2140 2518
2141void noinline 2519void noinline
… …
2143{ 2521{
2144 clear_pending (EV_A_ (W)w); 2522 clear_pending (EV_A_ (W)w);
2145 if (expect_false (!ev_is_active (w))) 2523 if (expect_false (!ev_is_active (w)))
2146 return; 2524 return;
2147 2525
2148 assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); 2526 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
2149 2527
2150 EV_FREQUENT_CHECK; 2528 EV_FREQUENT_CHECK;
2151 2529
2152 wlist_del (&anfds[w->fd].head, (WL)w); 2530 wlist_del (&anfds[w->fd].head, (WL)w);
2153 ev_stop (EV_A_ (W)w); 2531 ev_stop (EV_A_ (W)w);
… …
2163 if (expect_false (ev_is_active (w))) 2541 if (expect_false (ev_is_active (w)))
2164 return; 2542 return;
2165 2543
2166 ev_at (w) += mn_now; 2544 ev_at (w) += mn_now;
2167 2545
2168 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 2546 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
2169 2547
2170 EV_FREQUENT_CHECK; 2548 EV_FREQUENT_CHECK;
2171 2549
2172 ++timercnt; 2550 ++timercnt;
2173 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); 2551 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
… …
2176 ANHE_at_cache (timers [ev_active (w)]); 2554 ANHE_at_cache (timers [ev_active (w)]);
2177 upheap (timers, ev_active (w)); 2555 upheap (timers, ev_active (w));
2178 2556
2179 EV_FREQUENT_CHECK; 2557 EV_FREQUENT_CHECK;
2180 2558
2181 /*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 2559 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2182} 2560}
2183 2561
2184void noinline 2562void noinline
2185ev_timer_stop (EV_P_ ev_timer *w) 2563ev_timer_stop (EV_P_ ev_timer *w)
2186{ 2564{
… …
2191 EV_FREQUENT_CHECK; 2569 EV_FREQUENT_CHECK;
2192 2570
2193 { 2571 {
2194 int active = ev_active (w); 2572 int active = ev_active (w);
2195 2573
2196 assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); 2574 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
2197 2575
2198 --timercnt; 2576 --timercnt;
2199 2577
2200 if (expect_true (active < timercnt + HEAP0)) 2578 if (expect_true (active < timercnt + HEAP0))
2201 { 2579 {
… …
2234 } 2612 }
2235 2613
2236 EV_FREQUENT_CHECK; 2614 EV_FREQUENT_CHECK;
2237} 2615}
2238 2616
2617ev_tstamp
2618ev_timer_remaining (EV_P_ ev_timer *w)
2619{
2620 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
2621}
2622
2239#if EV_PERIODIC_ENABLE 2623#if EV_PERIODIC_ENABLE
2240void noinline 2624void noinline
2241ev_periodic_start (EV_P_ ev_periodic *w) 2625ev_periodic_start (EV_P_ ev_periodic *w)
2242{ 2626{
2243 if (expect_false (ev_is_active (w))) 2627 if (expect_false (ev_is_active (w)))
… …
2245 2629
2246 if (w->reschedule_cb) 2630 if (w->reschedule_cb)
2247 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2631 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2248 else if (w->interval) 2632 else if (w->interval)
2249 { 2633 {
2250 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); 2634 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2251 /* this formula differs from the one in periodic_reify because we do not always round up */ 2635 /* this formula differs from the one in periodic_reify because we do not always round up */
2252 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2636 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2253 } 2637 }
2254 else 2638 else
2255 ev_at (w) = w->offset; 2639 ev_at (w) = w->offset;
… …
2263 ANHE_at_cache (periodics [ev_active (w)]); 2647 ANHE_at_cache (periodics [ev_active (w)]);
2264 upheap (periodics, ev_active (w)); 2648 upheap (periodics, ev_active (w));
2265 2649
2266 EV_FREQUENT_CHECK; 2650 EV_FREQUENT_CHECK;
2267 2651
2268 /*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 2652 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2269} 2653}
2270 2654
2271void noinline 2655void noinline
2272ev_periodic_stop (EV_P_ ev_periodic *w) 2656ev_periodic_stop (EV_P_ ev_periodic *w)
2273{ 2657{
… …
2278 EV_FREQUENT_CHECK; 2662 EV_FREQUENT_CHECK;
2279 2663
2280 { 2664 {
2281 int active = ev_active (w); 2665 int active = ev_active (w);
2282 2666
2283 assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); 2667 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
2284 2668
2285 --periodiccnt; 2669 --periodiccnt;
2286 2670
2287 if (expect_true (active < periodiccnt + HEAP0)) 2671 if (expect_true (active < periodiccnt + HEAP0))
2288 { 2672 {
… …
2310#endif 2694#endif
2311 2695
2312void noinline 2696void noinline
2313ev_signal_start (EV_P_ ev_signal *w) 2697ev_signal_start (EV_P_ ev_signal *w)
2314{ 2698{
2315#if EV_MULTIPLICITY
2316 assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2317#endif
2318 if (expect_false (ev_is_active (w))) 2699 if (expect_false (ev_is_active (w)))
2319 return; 2700 return;
2320 2701
2321 assert (("ev_signal_start called with illegal signal number", w->signum > 0)); 2702 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
2322 2703
2323 evpipe_init (EV_A); 2704#if EV_MULTIPLICITY
2705 assert (("libev: a signal must not be attached to two different loops",
2706 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
2324 2707
2325 EV_FREQUENT_CHECK; 2708 signals [w->signum - 1].loop = EV_A;
2709#endif
2326 2710
2711 EV_FREQUENT_CHECK;
2712
2713#if EV_USE_SIGNALFD
2714 if (sigfd == -2)
2327 { 2715 {
2328#ifndef _WIN32 2716 sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC);
2329 sigset_t full, prev; 2717 if (sigfd < 0 && errno == EINVAL)
2330 sigfillset (&full); 2718 sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */
2331 sigprocmask (SIG_SETMASK, &full, &prev);
2332#endif
2333 2719
2334 array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); 2720 if (sigfd >= 0)
2721 {
2722 fd_intern (sigfd); /* doing it twice will not hurt */
2335 2723
2336#ifndef _WIN32 2724 sigemptyset (&sigfd_set);
2337 sigprocmask (SIG_SETMASK, &prev, 0); 2725
2338#endif 2726 ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ);
2727 ev_set_priority (&sigfd_w, EV_MAXPRI);
2728 ev_io_start (EV_A_ &sigfd_w);
2729 ev_unref (EV_A); /* signalfd watcher should not keep loop alive */
2730 }
2339 } 2731 }
2732
2733 if (sigfd >= 0)
2734 {
2735 /* TODO: check .head */
2736 sigaddset (&sigfd_set, w->signum);
2737 sigprocmask (SIG_BLOCK, &sigfd_set, 0);
2738
2739 signalfd (sigfd, &sigfd_set, 0);
2740 }
2741#endif
2340 2742
2341 ev_start (EV_A_ (W)w, 1); 2743 ev_start (EV_A_ (W)w, 1);
2342 wlist_add (&signals [w->signum - 1].head, (WL)w); 2744 wlist_add (&signals [w->signum - 1].head, (WL)w);
2343 2745
2344 if (!((WL)w)->next) 2746 if (!((WL)w)->next)
2747# if EV_USE_SIGNALFD
2748 if (sigfd < 0) /*TODO*/
2749# endif
2345 { 2750 {
2346#if _WIN32 2751# if _WIN32
2752 evpipe_init (EV_A);
2753
2347 signal (w->signum, ev_sighandler); 2754 signal (w->signum, ev_sighandler);
2348#else 2755# else
2349 struct sigaction sa; 2756 struct sigaction sa;
2757
2758 evpipe_init (EV_A);
2759
2350 sa.sa_handler = ev_sighandler; 2760 sa.sa_handler = ev_sighandler;
2351 sigfillset (&sa.sa_mask); 2761 sigfillset (&sa.sa_mask);
2352 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 2762 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2353 sigaction (w->signum, &sa, 0); 2763 sigaction (w->signum, &sa, 0);
2764
2765 sigemptyset (&sa.sa_mask);
2766 sigaddset (&sa.sa_mask, w->signum);
2767 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
2354#endif 2768#endif
2355 } 2769 }
2356 2770
2357 EV_FREQUENT_CHECK; 2771 EV_FREQUENT_CHECK;
2358} 2772}
2359 2773
2360void noinline 2774void noinline
… …
2368 2782
2369 wlist_del (&signals [w->signum - 1].head, (WL)w); 2783 wlist_del (&signals [w->signum - 1].head, (WL)w);
2370 ev_stop (EV_A_ (W)w); 2784 ev_stop (EV_A_ (W)w);
2371 2785
2372 if (!signals [w->signum - 1].head) 2786 if (!signals [w->signum - 1].head)
2787 {
2788#if EV_MULTIPLICITY
2789 signals [w->signum - 1].loop = 0; /* unattach from signal */
2790#endif
2791#if EV_USE_SIGNALFD
2792 if (sigfd >= 0)
2793 {
2794 sigprocmask (SIG_UNBLOCK, &sigfd_set, 0);//D
2795 sigdelset (&sigfd_set, w->signum);
2796 signalfd (sigfd, &sigfd_set, 0);
2797 sigprocmask (SIG_BLOCK, &sigfd_set, 0);//D
2798 /*TODO: maybe unblock signal? */
2799 }
2800 else
2801#endif
2373 signal (w->signum, SIG_DFL); 2802 signal (w->signum, SIG_DFL);
2803 }
2374 2804
2375 EV_FREQUENT_CHECK; 2805 EV_FREQUENT_CHECK;
2376} 2806}
2377 2807
2378void 2808void
2379ev_child_start (EV_P_ ev_child *w) 2809ev_child_start (EV_P_ ev_child *w)
2380{ 2810{
2381#if EV_MULTIPLICITY 2811#if EV_MULTIPLICITY
2382 assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 2812 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2383#endif 2813#endif
2384 if (expect_false (ev_is_active (w))) 2814 if (expect_false (ev_is_active (w)))
2385 return; 2815 return;
2386 2816
2387 EV_FREQUENT_CHECK; 2817 EV_FREQUENT_CHECK;
… …
2412# ifdef _WIN32 2842# ifdef _WIN32
2413# undef lstat 2843# undef lstat
2414# define lstat(a,b) _stati64 (a,b) 2844# define lstat(a,b) _stati64 (a,b)
2415# endif 2845# endif
2416 2846
2417#define DEF_STAT_INTERVAL 5.0074891 2847#define DEF_STAT_INTERVAL 5.0074891
2848#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
2418#define MIN_STAT_INTERVAL 0.1074891 2849#define MIN_STAT_INTERVAL 0.1074891
2419 2850
2420static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 2851static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2421 2852
2422#if EV_USE_INOTIFY 2853#if EV_USE_INOTIFY
2423# define EV_INOTIFY_BUFSIZE 8192 2854# define EV_INOTIFY_BUFSIZE 8192
… …
2427{ 2858{
2428 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); 2859 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);
2429 2860
2430 if (w->wd < 0) 2861 if (w->wd < 0)
2431 { 2862 {
2863 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2432 ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ 2864 ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2433 2865
2434 /* monitor some parent directory for speedup hints */ 2866 /* monitor some parent directory for speedup hints */
2435 /* note that exceeding the hardcoded limit is not a correctness issue, */ 2867 /* note that exceeding the hardcoded path limit is not a correctness issue, */
2436 /* but an efficiency issue only */ 2868 /* but an efficiency issue only */
2437 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) 2869 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2438 { 2870 {
2439 char path [4096]; 2871 char path [4096];
2440 strcpy (path, w->path); 2872 strcpy (path, w->path);
… …
2444 int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF 2876 int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF
2445 | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); 2877 | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);
2446 2878
2447 char *pend = strrchr (path, '/'); 2879 char *pend = strrchr (path, '/');
2448 2880
2449 if (!pend) 2881 if (!pend || pend == path)
2450 break; /* whoops, no '/', complain to your admin */ 2882 break;
2451 2883
2452 *pend = 0; 2884 *pend = 0;
2453 w->wd = inotify_add_watch (fs_fd, path, mask); 2885 w->wd = inotify_add_watch (fs_fd, path, mask);
2454 } 2886 }
2455 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 2887 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2456 } 2888 }
2457 } 2889 }
2458 else
2459 ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */
2460 2890
2461 if (w->wd >= 0) 2891 if (w->wd >= 0)
2892 {
2893 struct statfs sfs;
2894
2462 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 2895 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
2896
2897 /* now local changes will be tracked by inotify, but remote changes won't */
2898 /* unless the filesystem is known to be local, we therefore still poll */
2899 /* also do poll on <2.6.25, but with normal frequency */
2900
2901 if (fs_2625 && !statfs (w->path, &sfs))
2902 if (sfs.f_type == 0x1373 /* devfs */
2903 || sfs.f_type == 0xEF53 /* ext2/3 */
2904 || sfs.f_type == 0x3153464a /* jfs */
2905 || sfs.f_type == 0x52654973 /* reiser3 */
2906 || sfs.f_type == 0x01021994 /* tempfs */
2907 || sfs.f_type == 0x58465342 /* xfs */)
2908 return;
2909
2910 w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
2911 ev_timer_again (EV_A_ &w->timer);
2912 }
2463} 2913}
2464 2914
2465static void noinline 2915static void noinline
2466infy_del (EV_P_ ev_stat *w) 2916infy_del (EV_P_ ev_stat *w)
2467{ 2917{
… …
2497 2947
2498 if (w->wd == wd || wd == -1) 2948 if (w->wd == wd || wd == -1)
2499 { 2949 {
2500 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 2950 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2501 { 2951 {
2952 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
2502 w->wd = -1; 2953 w->wd = -1;
2503 infy_add (EV_A_ w); /* re-add, no matter what */ 2954 infy_add (EV_A_ w); /* re-add, no matter what */
2504 } 2955 }
2505 2956
2506 stat_timer_cb (EV_A_ &w->timer, 0); 2957 stat_timer_cb (EV_A_ &w->timer, 0);
… …
2519 2970
2520 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) 2971 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)
2521 infy_wd (EV_A_ ev->wd, ev->wd, ev); 2972 infy_wd (EV_A_ ev->wd, ev->wd, ev);
2522} 2973}
2523 2974
2524void inline_size 2975inline_size void
2525infy_init (EV_P) 2976check_2625 (EV_P)
2526{ 2977{
2527 if (fs_fd != -2)
2528 return;
2529
2530 /* kernels < 2.6.25 are borked 2978 /* kernels < 2.6.25 are borked
2531 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 2979 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2532 */ 2980 */
2533 {
2534 struct utsname buf; 2981 struct utsname buf;
2535 int major, minor, micro; 2982 int major, minor, micro;
2536 2983
2537 fs_fd = -1;
2538
2539 if (uname (&buf)) 2984 if (uname (&buf))
2540 return; 2985 return;
2541 2986
2542 if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3) 2987 if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
2543 return; 2988 return;
2544 2989
2545 if (major < 2 2990 if (major < 2
2546 || (major == 2 && minor < 6) 2991 || (major == 2 && minor < 6)
2547 || (major == 2 && minor == 6 && micro < 25)) 2992 || (major == 2 && minor == 6 && micro < 25))
2548 return; 2993 return;
2549 }
2550 2994
2995 fs_2625 = 1;
2996}
2997
2998inline_size int
2999infy_newfd (void)
3000{
3001#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK)
3002 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3003 if (fd >= 0)
3004 return fd;
3005#endif
3006 return inotify_init ();
3007}
3008
3009inline_size void
3010infy_init (EV_P)
3011{
3012 if (fs_fd != -2)
3013 return;
3014
3015 fs_fd = -1;
3016
3017 check_2625 (EV_A);
3018
2551 fs_fd = inotify_init (); 3019 fs_fd = infy_newfd ();
2552 3020
2553 if (fs_fd >= 0) 3021 if (fs_fd >= 0)
2554 { 3022 {
3023 fd_intern (fs_fd);
2555 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); 3024 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
2556 ev_set_priority (&fs_w, EV_MAXPRI); 3025 ev_set_priority (&fs_w, EV_MAXPRI);
2557 ev_io_start (EV_A_ &fs_w); 3026 ev_io_start (EV_A_ &fs_w);
3027 ev_unref (EV_A);
2558 } 3028 }
2559} 3029}
2560 3030
2561void inline_size 3031inline_size void
2562infy_fork (EV_P) 3032infy_fork (EV_P)
2563{ 3033{
2564 int slot; 3034 int slot;
2565 3035
2566 if (fs_fd < 0) 3036 if (fs_fd < 0)
2567 return; 3037 return;
2568 3038
3039 ev_ref (EV_A);
3040 ev_io_stop (EV_A_ &fs_w);
2569 close (fs_fd); 3041 close (fs_fd);
2570 fs_fd = inotify_init (); 3042 fs_fd = infy_newfd ();
3043
3044 if (fs_fd >= 0)
3045 {
3046 fd_intern (fs_fd);
3047 ev_io_set (&fs_w, fs_fd, EV_READ);
3048 ev_io_start (EV_A_ &fs_w);
3049 ev_unref (EV_A);
3050 }
2571 3051
2572 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3052 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
2573 { 3053 {
2574 WL w_ = fs_hash [slot].head; 3054 WL w_ = fs_hash [slot].head;
2575 fs_hash [slot].head = 0; 3055 fs_hash [slot].head = 0;
… …
2582 w->wd = -1; 3062 w->wd = -1;
2583 3063
2584 if (fs_fd >= 0) 3064 if (fs_fd >= 0)
2585 infy_add (EV_A_ w); /* re-add, no matter what */ 3065 infy_add (EV_A_ w); /* re-add, no matter what */
2586 else 3066 else
2587 ev_timer_start (EV_A_ &w->timer); 3067 ev_timer_again (EV_A_ &w->timer);
2588 } 3068 }
2589 } 3069 }
2590} 3070}
2591 3071
2592#endif 3072#endif
… …
2647ev_stat_start (EV_P_ ev_stat *w) 3127ev_stat_start (EV_P_ ev_stat *w)
2648{ 3128{
2649 if (expect_false (ev_is_active (w))) 3129 if (expect_false (ev_is_active (w)))
2650 return; 3130 return;
2651 3131
2652 /* since we use memcmp, we need to clear any padding data etc. */
2653 memset (&w->prev, 0, sizeof (ev_statdata));
2654 memset (&w->attr, 0, sizeof (ev_statdata));
2655
2656 ev_stat_stat (EV_A_ w); 3132 ev_stat_stat (EV_A_ w);
2657 3133
3134 if (w->interval < MIN_STAT_INTERVAL && w->interval)
2658 if (w->interval < MIN_STAT_INTERVAL) 3135 w->interval = MIN_STAT_INTERVAL;
2659 w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
2660 3136
2661 ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); 3137 ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL);
2662 ev_set_priority (&w->timer, ev_priority (w)); 3138 ev_set_priority (&w->timer, ev_priority (w));
2663 3139
2664#if EV_USE_INOTIFY 3140#if EV_USE_INOTIFY
2665 infy_init (EV_A); 3141 infy_init (EV_A);
2666 3142
2667 if (fs_fd >= 0) 3143 if (fs_fd >= 0)
2668 infy_add (EV_A_ w); 3144 infy_add (EV_A_ w);
2669 else 3145 else
2670#endif 3146#endif
2671 ev_timer_start (EV_A_ &w->timer); 3147 ev_timer_again (EV_A_ &w->timer);
2672 3148
2673 ev_start (EV_A_ (W)w, 1); 3149 ev_start (EV_A_ (W)w, 1);
2674 3150
2675 EV_FREQUENT_CHECK; 3151 EV_FREQUENT_CHECK;
2676} 3152}
… …
2836embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 3312embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
2837{ 3313{
2838 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); 3314 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
2839 3315
2840 { 3316 {
2841 struct ev_loop *loop = w->other; 3317 EV_P = w->other;
2842 3318
2843 while (fdchangecnt) 3319 while (fdchangecnt)
2844 { 3320 {
2845 fd_reify (EV_A); 3321 fd_reify (EV_A);
2846 ev_loop (EV_A_ EVLOOP_NONBLOCK); 3322 ev_loop (EV_A_ EVLOOP_NONBLOCK);
… …
2851static void 3327static void
2852embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) 3328embed_fork_cb (EV_P_ ev_fork *fork_w, int revents)
2853{ 3329{
2854 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); 3330 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
2855 3331
3332 ev_embed_stop (EV_A_ w);
3333
2856 { 3334 {
2857 struct ev_loop *loop = w->other; 3335 EV_P = w->other;
2858 3336
2859 ev_loop_fork (EV_A); 3337 ev_loop_fork (EV_A);
3338 ev_loop (EV_A_ EVLOOP_NONBLOCK);
2860 } 3339 }
3340
3341 ev_embed_start (EV_A_ w);
2861} 3342}
2862 3343
2863#if 0 3344#if 0
2864static void 3345static void
2865embed_idle_cb (EV_P_ ev_idle *idle, int revents) 3346embed_idle_cb (EV_P_ ev_idle *idle, int revents)
… …
2873{ 3354{
2874 if (expect_false (ev_is_active (w))) 3355 if (expect_false (ev_is_active (w)))
2875 return; 3356 return;
2876 3357
2877 { 3358 {
2878 struct ev_loop *loop = w->other; 3359 EV_P = w->other;
2879 assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 3360 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2880 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); 3361 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2881 } 3362 }
2882 3363
2883 EV_FREQUENT_CHECK; 3364 EV_FREQUENT_CHECK;
2884 3365
… …
2995 3476
2996void 3477void
2997ev_async_send (EV_P_ ev_async *w) 3478ev_async_send (EV_P_ ev_async *w)
2998{ 3479{
2999 w->sent = 1; 3480 w->sent = 1;
3000 evpipe_write (EV_A_ &gotasync); 3481 evpipe_write (EV_A_ &async_pending);
3001} 3482}
3002#endif 3483#endif
3003 3484
3004/*****************************************************************************/ 3485/*****************************************************************************/
3005 3486
… …
3067 ev_timer_set (&once->to, timeout, 0.); 3548 ev_timer_set (&once->to, timeout, 0.);
3068 ev_timer_start (EV_A_ &once->to); 3549 ev_timer_start (EV_A_ &once->to);
3069 } 3550 }
3070} 3551}
3071 3552
3553/*****************************************************************************/
3554
3555#if EV_WALK_ENABLE
3556void
3557ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))
3558{
3559 int i, j;
3560 ev_watcher_list *wl, *wn;
3561
3562 if (types & (EV_IO | EV_EMBED))
3563 for (i = 0; i < anfdmax; ++i)
3564 for (wl = anfds [i].head; wl; )
3565 {
3566 wn = wl->next;
3567
3568#if EV_EMBED_ENABLE
3569 if (ev_cb ((ev_io *)wl) == embed_io_cb)
3570 {
3571 if (types & EV_EMBED)
3572 cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io));
3573 }
3574 else
3575#endif
3576#if EV_USE_INOTIFY
3577 if (ev_cb ((ev_io *)wl) == infy_cb)
3578 ;
3579 else
3580#endif
3581 if ((ev_io *)wl != &pipe_w)
3582 if (types & EV_IO)
3583 cb (EV_A_ EV_IO, wl);
3584
3585 wl = wn;
3586 }
3587
3588 if (types & (EV_TIMER | EV_STAT))
3589 for (i = timercnt + HEAP0; i-- > HEAP0; )
3590#if EV_STAT_ENABLE
3591 /*TODO: timer is not always active*/
3592 if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb)
3593 {
3594 if (types & EV_STAT)
3595 cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer));
3596 }
3597 else
3598#endif
3599 if (types & EV_TIMER)
3600 cb (EV_A_ EV_TIMER, ANHE_w (timers [i]));
3601
3602#if EV_PERIODIC_ENABLE
3603 if (types & EV_PERIODIC)
3604 for (i = periodiccnt + HEAP0; i-- > HEAP0; )
3605 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3606#endif
3607
3608#if EV_IDLE_ENABLE
3609 if (types & EV_IDLE)
3610 for (j = NUMPRI; i--; )
3611 for (i = idlecnt [j]; i--; )
3612 cb (EV_A_ EV_IDLE, idles [j][i]);
3613#endif
3614
3615#if EV_FORK_ENABLE
3616 if (types & EV_FORK)
3617 for (i = forkcnt; i--; )
3618 if (ev_cb (forks [i]) != embed_fork_cb)
3619 cb (EV_A_ EV_FORK, forks [i]);
3620#endif
3621
3622#if EV_ASYNC_ENABLE
3623 if (types & EV_ASYNC)
3624 for (i = asynccnt; i--; )
3625 cb (EV_A_ EV_ASYNC, asyncs [i]);
3626#endif
3627
3628 if (types & EV_PREPARE)
3629 for (i = preparecnt; i--; )
3630#if EV_EMBED_ENABLE
3631 if (ev_cb (prepares [i]) != embed_prepare_cb)
3632#endif
3633 cb (EV_A_ EV_PREPARE, prepares [i]);
3634
3635 if (types & EV_CHECK)
3636 for (i = checkcnt; i--; )
3637 cb (EV_A_ EV_CHECK, checks [i]);
3638
3639 if (types & EV_SIGNAL)
3640 for (i = 0; i < EV_NSIG - 1; ++i)
3641 for (wl = signals [i].head; wl; )
3642 {
3643 wn = wl->next;
3644 cb (EV_A_ EV_SIGNAL, wl);
3645 wl = wn;
3646 }
3647
3648 if (types & EV_CHILD)
3649 for (i = EV_PID_HASHSIZE; i--; )
3650 for (wl = childs [i]; wl; )
3651 {
3652 wn = wl->next;
3653 cb (EV_A_ EV_CHILD, wl);
3654 wl = wn;
3655 }
3656/* EV_STAT 0x00001000 /* stat data changed */
3657/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3658}
3659#endif
3660
3072#if EV_MULTIPLICITY 3661#if EV_MULTIPLICITY
3073 #include "ev_wrap.h" 3662 #include "ev_wrap.h"
3074#endif 3663#endif
3075 3664
3076#ifdef __cplusplus 3665#ifdef __cplusplus

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