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Comparing libev/ev.c (file contents):
Revision 1.270 by root, Thu Oct 30 13:07:10 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
… …
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 */
455 unsigned char unused; 596 unsigned char unused;
456#if EV_USE_EPOLL 597#if EV_USE_EPOLL
457 unsigned int egen; /* generation counter to counter epoll bugs */ 598 unsigned int egen; /* generation counter to counter epoll bugs */
458#endif 599#endif
459#if EV_SELECT_IS_WINSOCKET 600#if EV_SELECT_IS_WINSOCKET
460 SOCKET handle; 601 SOCKET handle;
461#endif 602#endif
462} ANFD; 603} ANFD;
463 604
605/* stores the pending event set for a given watcher */
464typedef struct 606typedef struct
465{ 607{
466 W w; 608 W w;
467 int events; 609 int events; /* the pending event set for the given watcher */
468} ANPENDING; 610} ANPENDING;
469 611
470#if EV_USE_INOTIFY 612#if EV_USE_INOTIFY
471/* hash table entry per inotify-id */ 613/* hash table entry per inotify-id */
472typedef struct 614typedef struct
… …
475} ANFS; 617} ANFS;
476#endif 618#endif
477 619
478/* Heap Entry */ 620/* Heap Entry */
479#if EV_HEAP_CACHE_AT 621#if EV_HEAP_CACHE_AT
622 /* a heap element */
480 typedef struct { 623 typedef struct {
481 ev_tstamp at; 624 ev_tstamp at;
482 WT w; 625 WT w;
483 } ANHE; 626 } ANHE;
484 627
485 #define ANHE_w(he) (he).w /* access watcher, read-write */ 628 #define ANHE_w(he) (he).w /* access watcher, read-write */
486 #define ANHE_at(he) (he).at /* access cached at, read-only */ 629 #define ANHE_at(he) (he).at /* access cached at, read-only */
487 #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 */
488#else 631#else
632 /* a heap element */
489 typedef WT ANHE; 633 typedef WT ANHE;
490 634
491 #define ANHE_w(he) (he) 635 #define ANHE_w(he) (he)
492 #define ANHE_at(he) (he)->at 636 #define ANHE_at(he) (he)->at
493 #define ANHE_at_cache(he) 637 #define ANHE_at_cache(he)
… …
517 661
518 static int ev_default_loop_ptr; 662 static int ev_default_loop_ptr;
519 663
520#endif 664#endif
521 665
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
522/*****************************************************************************/ 678/*****************************************************************************/
523 679
680#ifndef EV_HAVE_EV_TIME
524ev_tstamp 681ev_tstamp
525ev_time (void) 682ev_time (void)
526{ 683{
527#if EV_USE_REALTIME 684#if EV_USE_REALTIME
685 if (expect_true (have_realtime))
686 {
528 struct timespec ts; 687 struct timespec ts;
529 clock_gettime (CLOCK_REALTIME, &ts); 688 clock_gettime (CLOCK_REALTIME, &ts);
530 return ts.tv_sec + ts.tv_nsec * 1e-9; 689 return ts.tv_sec + ts.tv_nsec * 1e-9;
531#else 690 }
691#endif
692
532 struct timeval tv; 693 struct timeval tv;
533 gettimeofday (&tv, 0); 694 gettimeofday (&tv, 0);
534 return tv.tv_sec + tv.tv_usec * 1e-6; 695 return tv.tv_sec + tv.tv_usec * 1e-6;
535#endif
536} 696}
697#endif
537 698
538ev_tstamp inline_size 699inline_size ev_tstamp
539get_clock (void) 700get_clock (void)
540{ 701{
541#if EV_USE_MONOTONIC 702#if EV_USE_MONOTONIC
542 if (expect_true (have_monotonic)) 703 if (expect_true (have_monotonic))
543 { 704 {
… …
577 738
578 tv.tv_sec = (time_t)delay; 739 tv.tv_sec = (time_t)delay;
579 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); 740 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
580 741
581 /* 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 */
582 /* somehting nto guaranteed by newer posix versions, but guaranteed */ 743 /* something not guaranteed by newer posix versions, but guaranteed */
583 /* by older ones */ 744 /* by older ones */
584 select (0, 0, 0, 0, &tv); 745 select (0, 0, 0, 0, &tv);
585#endif 746#endif
586 } 747 }
587} 748}
588 749
589/*****************************************************************************/ 750/*****************************************************************************/
590 751
591#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 */
592 753
593int 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
594array_nextsize (int elem, int cur, int cnt) 757array_nextsize (int elem, int cur, int cnt)
595{ 758{
596 int ncur = cur + 1; 759 int ncur = cur + 1;
597 760
598 do 761 do
… …
639 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ 802 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
640 } 803 }
641#endif 804#endif
642 805
643#define array_free(stem, idx) \ 806#define array_free(stem, idx) \
644 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
645 808
646/*****************************************************************************/ 809/*****************************************************************************/
810
811/* dummy callback for pending events */
812static void noinline
813pendingcb (EV_P_ ev_prepare *w, int revents)
814{
815}
647 816
648void noinline 817void noinline
649ev_feed_event (EV_P_ void *w, int revents) 818ev_feed_event (EV_P_ void *w, int revents)
650{ 819{
651 W w_ = (W)w; 820 W w_ = (W)w;
… …
660 pendings [pri][w_->pending - 1].w = w_; 829 pendings [pri][w_->pending - 1].w = w_;
661 pendings [pri][w_->pending - 1].events = revents; 830 pendings [pri][w_->pending - 1].events = revents;
662 } 831 }
663} 832}
664 833
665void 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
666queue_events (EV_P_ W *events, int eventcnt, int type) 850queue_events (EV_P_ W *events, int eventcnt, int type)
667{ 851{
668 int i; 852 int i;
669 853
670 for (i = 0; i < eventcnt; ++i) 854 for (i = 0; i < eventcnt; ++i)
671 ev_feed_event (EV_A_ events [i], type); 855 ev_feed_event (EV_A_ events [i], type);
672} 856}
673 857
674/*****************************************************************************/ 858/*****************************************************************************/
675 859
676void inline_speed 860inline_speed void
677fd_event (EV_P_ int fd, int revents) 861fd_event_nc (EV_P_ int fd, int revents)
678{ 862{
679 ANFD *anfd = anfds + fd; 863 ANFD *anfd = anfds + fd;
680 ev_io *w; 864 ev_io *w;
681 865
682 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)
… …
686 if (ev) 870 if (ev)
687 ev_feed_event (EV_A_ (W)w, ev); 871 ev_feed_event (EV_A_ (W)w, ev);
688 } 872 }
689} 873}
690 874
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
691void 886void
692ev_feed_fd_event (EV_P_ int fd, int revents) 887ev_feed_fd_event (EV_P_ int fd, int revents)
693{ 888{
694 if (fd >= 0 && fd < anfdmax) 889 if (fd >= 0 && fd < anfdmax)
695 fd_event (EV_A_ fd, revents); 890 fd_event_nc (EV_A_ fd, revents);
696} 891}
697 892
698void inline_size 893/* make sure the external fd watch events are in-sync */
894/* with the kernel/libev internal state */
895inline_size void
699fd_reify (EV_P) 896fd_reify (EV_P)
700{ 897{
701 int i; 898 int i;
702 899
703 for (i = 0; i < fdchangecnt; ++i) 900 for (i = 0; i < fdchangecnt; ++i)
… …
713 910
714#if EV_SELECT_IS_WINSOCKET 911#if EV_SELECT_IS_WINSOCKET
715 if (events) 912 if (events)
716 { 913 {
717 unsigned long arg; 914 unsigned long arg;
718 #ifdef EV_FD_TO_WIN32_HANDLE
719 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 915 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
720 #else
721 anfd->handle = _get_osfhandle (fd);
722 #endif
723 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));
724 } 917 }
725#endif 918#endif
726 919
727 { 920 {
728 unsigned char o_events = anfd->events; 921 unsigned char o_events = anfd->events;
729 unsigned char o_reify = anfd->reify; 922 unsigned char o_reify = anfd->reify;
730 923
731 anfd->reify = 0; 924 anfd->reify = 0;
732 anfd->events = events; 925 anfd->events = events;
733 926
734 if (o_events != events || o_reify & EV_IOFDSET) 927 if (o_events != events || o_reify & EV__IOFDSET)
735 backend_modify (EV_A_ fd, o_events, events); 928 backend_modify (EV_A_ fd, o_events, events);
736 } 929 }
737 } 930 }
738 931
739 fdchangecnt = 0; 932 fdchangecnt = 0;
740} 933}
741 934
742void inline_size 935/* something about the given fd changed */
936inline_size void
743fd_change (EV_P_ int fd, int flags) 937fd_change (EV_P_ int fd, int flags)
744{ 938{
745 unsigned char reify = anfds [fd].reify; 939 unsigned char reify = anfds [fd].reify;
746 anfds [fd].reify |= flags; 940 anfds [fd].reify |= flags;
747 941
… …
751 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 945 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
752 fdchanges [fdchangecnt - 1] = fd; 946 fdchanges [fdchangecnt - 1] = fd;
753 } 947 }
754} 948}
755 949
756void inline_speed 950/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
951inline_speed void
757fd_kill (EV_P_ int fd) 952fd_kill (EV_P_ int fd)
758{ 953{
759 ev_io *w; 954 ev_io *w;
760 955
761 while ((w = (ev_io *)anfds [fd].head)) 956 while ((w = (ev_io *)anfds [fd].head))
… …
763 ev_io_stop (EV_A_ w); 958 ev_io_stop (EV_A_ w);
764 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);
765 } 960 }
766} 961}
767 962
768int inline_size 963/* check whether the given fd is atcually valid, for error recovery */
964inline_size int
769fd_valid (int fd) 965fd_valid (int fd)
770{ 966{
771#ifdef _WIN32 967#ifdef _WIN32
772 return _get_osfhandle (fd) != -1; 968 return _get_osfhandle (fd) != -1;
773#else 969#else
… …
795 991
796 for (fd = anfdmax; fd--; ) 992 for (fd = anfdmax; fd--; )
797 if (anfds [fd].events) 993 if (anfds [fd].events)
798 { 994 {
799 fd_kill (EV_A_ fd); 995 fd_kill (EV_A_ fd);
800 return; 996 break;
801 } 997 }
802} 998}
803 999
804/* 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 */
805static void noinline 1001static void noinline
… …
810 for (fd = 0; fd < anfdmax; ++fd) 1006 for (fd = 0; fd < anfdmax; ++fd)
811 if (anfds [fd].events) 1007 if (anfds [fd].events)
812 { 1008 {
813 anfds [fd].events = 0; 1009 anfds [fd].events = 0;
814 anfds [fd].emask = 0; 1010 anfds [fd].emask = 0;
815 fd_change (EV_A_ fd, EV_IOFDSET | 1); 1011 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
816 } 1012 }
817} 1013}
818 1014
819/*****************************************************************************/ 1015/*****************************************************************************/
820 1016
… …
836#define HEAP0 (DHEAP - 1) /* index of first element in heap */ 1032#define HEAP0 (DHEAP - 1) /* index of first element in heap */
837#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) 1033#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0)
838#define UPHEAP_DONE(p,k) ((p) == (k)) 1034#define UPHEAP_DONE(p,k) ((p) == (k))
839 1035
840/* away from the root */ 1036/* away from the root */
841void inline_speed 1037inline_speed void
842downheap (ANHE *heap, int N, int k) 1038downheap (ANHE *heap, int N, int k)
843{ 1039{
844 ANHE he = heap [k]; 1040 ANHE he = heap [k];
845 ANHE *E = heap + N + HEAP0; 1041 ANHE *E = heap + N + HEAP0;
846 1042
… …
886#define HEAP0 1 1082#define HEAP0 1
887#define HPARENT(k) ((k) >> 1) 1083#define HPARENT(k) ((k) >> 1)
888#define UPHEAP_DONE(p,k) (!(p)) 1084#define UPHEAP_DONE(p,k) (!(p))
889 1085
890/* away from the root */ 1086/* away from the root */
891void inline_speed 1087inline_speed void
892downheap (ANHE *heap, int N, int k) 1088downheap (ANHE *heap, int N, int k)
893{ 1089{
894 ANHE he = heap [k]; 1090 ANHE he = heap [k];
895 1091
896 for (;;) 1092 for (;;)
897 { 1093 {
898 int c = k << 1; 1094 int c = k << 1;
899 1095
900 if (c > N + HEAP0 - 1) 1096 if (c >= N + HEAP0)
901 break; 1097 break;
902 1098
903 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])
904 ? 1 : 0; 1100 ? 1 : 0;
905 1101
… …
916 ev_active (ANHE_w (he)) = k; 1112 ev_active (ANHE_w (he)) = k;
917} 1113}
918#endif 1114#endif
919 1115
920/* towards the root */ 1116/* towards the root */
921void inline_speed 1117inline_speed void
922upheap (ANHE *heap, int k) 1118upheap (ANHE *heap, int k)
923{ 1119{
924 ANHE he = heap [k]; 1120 ANHE he = heap [k];
925 1121
926 for (;;) 1122 for (;;)
… …
937 1133
938 heap [k] = he; 1134 heap [k] = he;
939 ev_active (ANHE_w (he)) = k; 1135 ev_active (ANHE_w (he)) = k;
940} 1136}
941 1137
942void inline_size 1138/* move an element suitably so it is in a correct place */
1139inline_size void
943adjustheap (ANHE *heap, int N, int k) 1140adjustheap (ANHE *heap, int N, int k)
944{ 1141{
945 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)]))
946 upheap (heap, k); 1143 upheap (heap, k);
947 else 1144 else
948 downheap (heap, N, k); 1145 downheap (heap, N, k);
949} 1146}
950 1147
951/* 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 */
952void inline_size 1149inline_size void
953reheap (ANHE *heap, int N) 1150reheap (ANHE *heap, int N)
954{ 1151{
955 int i; 1152 int i;
956 1153
957 /* 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 */
… …
960 upheap (heap, i + HEAP0); 1157 upheap (heap, i + HEAP0);
961} 1158}
962 1159
963/*****************************************************************************/ 1160/*****************************************************************************/
964 1161
1162/* associate signal watchers to a signal signal */
965typedef struct 1163typedef struct
966{ 1164{
1165 EV_ATOMIC_T pending;
1166#if EV_MULTIPLICITY
1167 EV_P;
1168#endif
967 WL head; 1169 WL head;
968 EV_ATOMIC_T gotsig;
969} ANSIG; 1170} ANSIG;
970 1171
971static ANSIG *signals; 1172static ANSIG signals [EV_NSIG - 1];
972static int signalmax;
973
974static EV_ATOMIC_T gotsig;
975 1173
976/*****************************************************************************/ 1174/*****************************************************************************/
977 1175
978void inline_speed 1176/* used to prepare libev internal fd's */
1177/* this is not fork-safe */
1178inline_speed void
979fd_intern (int fd) 1179fd_intern (int fd)
980{ 1180{
981#ifdef _WIN32 1181#ifdef _WIN32
982 unsigned long arg = 1; 1182 unsigned long arg = 1;
983 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); 1183 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
… …
988} 1188}
989 1189
990static void noinline 1190static void noinline
991evpipe_init (EV_P) 1191evpipe_init (EV_P)
992{ 1192{
993 if (!ev_is_active (&pipeev)) 1193 if (!ev_is_active (&pipe_w))
994 { 1194 {
995#if EV_USE_EVENTFD 1195#if EV_USE_EVENTFD
1196 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1197 if (evfd < 0 && errno == EINVAL)
996 if ((evfd = eventfd (0, 0)) >= 0) 1198 evfd = eventfd (0, 0);
1199
1200 if (evfd >= 0)
997 { 1201 {
998 evpipe [0] = -1; 1202 evpipe [0] = -1;
999 fd_intern (evfd); 1203 fd_intern (evfd); /* doing it twice doesn't hurt */
1000 ev_io_set (&pipeev, evfd, EV_READ); 1204 ev_io_set (&pipe_w, evfd, EV_READ);
1001 } 1205 }
1002 else 1206 else
1003#endif 1207#endif
1004 { 1208 {
1005 while (pipe (evpipe)) 1209 while (pipe (evpipe))
1006 ev_syserr ("(libev) error creating signal/async pipe"); 1210 ev_syserr ("(libev) error creating signal/async pipe");
1007 1211
1008 fd_intern (evpipe [0]); 1212 fd_intern (evpipe [0]);
1009 fd_intern (evpipe [1]); 1213 fd_intern (evpipe [1]);
1010 ev_io_set (&pipeev, evpipe [0], EV_READ); 1214 ev_io_set (&pipe_w, evpipe [0], EV_READ);
1011 } 1215 }
1012 1216
1013 ev_io_start (EV_A_ &pipeev); 1217 ev_io_start (EV_A_ &pipe_w);
1014 ev_unref (EV_A); /* watcher should not keep loop alive */ 1218 ev_unref (EV_A); /* watcher should not keep loop alive */
1015 } 1219 }
1016} 1220}
1017 1221
1018void inline_size 1222inline_size void
1019evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1223evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1020{ 1224{
1021 if (!*flag) 1225 if (!*flag)
1022 { 1226 {
1023 int old_errno = errno; /* save errno because write might clobber it */ 1227 int old_errno = errno; /* save errno because write might clobber it */
… …
1036 1240
1037 errno = old_errno; 1241 errno = old_errno;
1038 } 1242 }
1039} 1243}
1040 1244
1245/* called whenever the libev signal pipe */
1246/* got some events (signal, async) */
1041static void 1247static void
1042pipecb (EV_P_ ev_io *iow, int revents) 1248pipecb (EV_P_ ev_io *iow, int revents)
1043{ 1249{
1250 int i;
1251
1044#if EV_USE_EVENTFD 1252#if EV_USE_EVENTFD
1045 if (evfd >= 0) 1253 if (evfd >= 0)
1046 { 1254 {
1047 uint64_t counter; 1255 uint64_t counter;
1048 read (evfd, &counter, sizeof (uint64_t)); 1256 read (evfd, &counter, sizeof (uint64_t));
… …
1052 { 1260 {
1053 char dummy; 1261 char dummy;
1054 read (evpipe [0], &dummy, 1); 1262 read (evpipe [0], &dummy, 1);
1055 } 1263 }
1056 1264
1057 if (gotsig && ev_is_default_loop (EV_A)) 1265 if (sig_pending)
1058 { 1266 {
1059 int signum; 1267 sig_pending = 0;
1060 gotsig = 0;
1061 1268
1062 for (signum = signalmax; signum--; ) 1269 for (i = EV_NSIG - 1; i--; )
1063 if (signals [signum].gotsig) 1270 if (expect_false (signals [i].pending))
1064 ev_feed_signal_event (EV_A_ signum + 1); 1271 ev_feed_signal_event (EV_A_ i + 1);
1065 } 1272 }
1066 1273
1067#if EV_ASYNC_ENABLE 1274#if EV_ASYNC_ENABLE
1068 if (gotasync) 1275 if (async_pending)
1069 { 1276 {
1070 int i; 1277 async_pending = 0;
1071 gotasync = 0;
1072 1278
1073 for (i = asynccnt; i--; ) 1279 for (i = asynccnt; i--; )
1074 if (asyncs [i]->sent) 1280 if (asyncs [i]->sent)
1075 { 1281 {
1076 asyncs [i]->sent = 0; 1282 asyncs [i]->sent = 0;
… …
1084 1290
1085static void 1291static void
1086ev_sighandler (int signum) 1292ev_sighandler (int signum)
1087{ 1293{
1088#if EV_MULTIPLICITY 1294#if EV_MULTIPLICITY
1089 struct ev_loop *loop = &default_loop_struct; 1295 EV_P = signals [signum - 1].loop;
1090#endif 1296#endif
1091 1297
1092#if _WIN32 1298#if _WIN32
1093 signal (signum, ev_sighandler); 1299 signal (signum, ev_sighandler);
1094#endif 1300#endif
1095 1301
1096 signals [signum - 1].gotsig = 1; 1302 signals [signum - 1].pending = 1;
1097 evpipe_write (EV_A_ &gotsig); 1303 evpipe_write (EV_A_ &sig_pending);
1098} 1304}
1099 1305
1100void noinline 1306void noinline
1101ev_feed_signal_event (EV_P_ int signum) 1307ev_feed_signal_event (EV_P_ int signum)
1102{ 1308{
1103 WL w; 1309 WL w;
1104 1310
1311 if (expect_false (signum <= 0 || signum > EV_NSIG))
1312 return;
1313
1314 --signum;
1315
1105#if EV_MULTIPLICITY 1316#if EV_MULTIPLICITY
1106 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 */
1107#endif 1318 /* or, likely more useful, feeding a signal nobody is waiting for */
1108 1319
1109 --signum; 1320 if (expect_false (signals [signum].loop != EV_A))
1110
1111 if (signum < 0 || signum >= signalmax)
1112 return; 1321 return;
1322#endif
1113 1323
1114 signals [signum].gotsig = 0; 1324 signals [signum].pending = 0;
1115 1325
1116 for (w = signals [signum].head; w; w = w->next) 1326 for (w = signals [signum].head; w; w = w->next)
1117 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 1327 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1118} 1328}
1119 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
1120/*****************************************************************************/ 1350/*****************************************************************************/
1121 1351
1122static WL childs [EV_PID_HASHSIZE]; 1352static WL childs [EV_PID_HASHSIZE];
1123 1353
1124#ifndef _WIN32 1354#ifndef _WIN32
… …
1127 1357
1128#ifndef WIFCONTINUED 1358#ifndef WIFCONTINUED
1129# define WIFCONTINUED(status) 0 1359# define WIFCONTINUED(status) 0
1130#endif 1360#endif
1131 1361
1132void inline_speed 1362/* handle a single child status event */
1363inline_speed void
1133child_reap (EV_P_ int chain, int pid, int status) 1364child_reap (EV_P_ int chain, int pid, int status)
1134{ 1365{
1135 ev_child *w; 1366 ev_child *w;
1136 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 1367 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1137 1368
… …
1150 1381
1151#ifndef WCONTINUED 1382#ifndef WCONTINUED
1152# define WCONTINUED 0 1383# define WCONTINUED 0
1153#endif 1384#endif
1154 1385
1386/* called on sigchld etc., calls waitpid */
1155static void 1387static void
1156childcb (EV_P_ ev_signal *sw, int revents) 1388childcb (EV_P_ ev_signal *sw, int revents)
1157{ 1389{
1158 int pid, status; 1390 int pid, status;
1159 1391
… …
1240 /* kqueue is borked on everything but netbsd apparently */ 1472 /* kqueue is borked on everything but netbsd apparently */
1241 /* 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 */
1242 flags &= ~EVBACKEND_KQUEUE; 1474 flags &= ~EVBACKEND_KQUEUE;
1243#endif 1475#endif
1244#ifdef __APPLE__ 1476#ifdef __APPLE__
1245 // flags &= ~EVBACKEND_KQUEUE; for documentation 1477 /* only select works correctly on that "unix-certified" platform */
1246 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 */
1247#endif 1480#endif
1248 1481
1249 return flags; 1482 return flags;
1250} 1483}
1251 1484
… …
1265ev_backend (EV_P) 1498ev_backend (EV_P)
1266{ 1499{
1267 return backend; 1500 return backend;
1268} 1501}
1269 1502
1503#if EV_MINIMAL < 2
1270unsigned int 1504unsigned int
1271ev_loop_count (EV_P) 1505ev_loop_count (EV_P)
1272{ 1506{
1273 return loop_count; 1507 return loop_count;
1274} 1508}
1275 1509
1510unsigned int
1511ev_loop_depth (EV_P)
1512{
1513 return loop_depth;
1514}
1515
1276void 1516void
1277ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 1517ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
1278{ 1518{
1279 io_blocktime = interval; 1519 io_blocktime = interval;
1280} 1520}
… …
1283ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 1523ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
1284{ 1524{
1285 timeout_blocktime = interval; 1525 timeout_blocktime = interval;
1286} 1526}
1287 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 */
1288static void noinline 1553static void noinline
1289loop_init (EV_P_ unsigned int flags) 1554loop_init (EV_P_ unsigned int flags)
1290{ 1555{
1291 if (!backend) 1556 if (!backend)
1292 { 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
1293#if EV_USE_MONOTONIC 1568#if EV_USE_MONOTONIC
1569 if (!have_monotonic)
1294 { 1570 {
1295 struct timespec ts; 1571 struct timespec ts;
1572
1296 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 1573 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1297 have_monotonic = 1; 1574 have_monotonic = 1;
1298 } 1575 }
1299#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"));
1300 1588
1301 ev_rt_now = ev_time (); 1589 ev_rt_now = ev_time ();
1302 mn_now = get_clock (); 1590 mn_now = get_clock ();
1303 now_floor = mn_now; 1591 now_floor = mn_now;
1304 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
1305 1596
1306 io_blocktime = 0.; 1597 io_blocktime = 0.;
1307 timeout_blocktime = 0.; 1598 timeout_blocktime = 0.;
1308 backend = 0; 1599 backend = 0;
1309 backend_fd = -1; 1600 backend_fd = -1;
1310 gotasync = 0; 1601 sig_pending = 0;
1602#if EV_ASYNC_ENABLE
1603 async_pending = 0;
1604#endif
1311#if EV_USE_INOTIFY 1605#if EV_USE_INOTIFY
1312 fs_fd = -2; 1606 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1313#endif 1607#endif
1314 1608#if EV_USE_SIGNALFD
1315 /* pid check not overridable via env */ 1609 sigfd = flags & EVFLAG_NOSIGFD ? -1 : -2;
1316#ifndef _WIN32
1317 if (flags & EVFLAG_FORKCHECK)
1318 curpid = getpid ();
1319#endif 1610#endif
1320
1321 if (!(flags & EVFLAG_NOENV)
1322 && !enable_secure ()
1323 && getenv ("LIBEV_FLAGS"))
1324 flags = atoi (getenv ("LIBEV_FLAGS"));
1325 1611
1326 if (!(flags & 0x0000ffffU)) 1612 if (!(flags & 0x0000ffffU))
1327 flags |= ev_recommended_backends (); 1613 flags |= ev_recommended_backends ();
1328 1614
1329#if EV_USE_PORT 1615#if EV_USE_PORT
… …
1340#endif 1626#endif
1341#if EV_USE_SELECT 1627#if EV_USE_SELECT
1342 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 1628 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1343#endif 1629#endif
1344 1630
1631 ev_prepare_init (&pending_w, pendingcb);
1632
1345 ev_init (&pipeev, pipecb); 1633 ev_init (&pipe_w, pipecb);
1346 ev_set_priority (&pipeev, EV_MAXPRI); 1634 ev_set_priority (&pipe_w, EV_MAXPRI);
1347 } 1635 }
1348} 1636}
1349 1637
1638/* free up a loop structure */
1350static void noinline 1639static void noinline
1351loop_destroy (EV_P) 1640loop_destroy (EV_P)
1352{ 1641{
1353 int i; 1642 int i;
1354 1643
1355 if (ev_is_active (&pipeev)) 1644 if (ev_is_active (&pipe_w))
1356 { 1645 {
1357 ev_ref (EV_A); /* signal watcher */ 1646 /*ev_ref (EV_A);*/
1358 ev_io_stop (EV_A_ &pipeev); 1647 /*ev_io_stop (EV_A_ &pipe_w);*/
1359 1648
1360#if EV_USE_EVENTFD 1649#if EV_USE_EVENTFD
1361 if (evfd >= 0) 1650 if (evfd >= 0)
1362 close (evfd); 1651 close (evfd);
1363#endif 1652#endif
1364 1653
1365 if (evpipe [0] >= 0) 1654 if (evpipe [0] >= 0)
1366 { 1655 {
1367 close (evpipe [0]); 1656 EV_WIN32_CLOSE_FD (evpipe [0]);
1368 close (evpipe [1]); 1657 EV_WIN32_CLOSE_FD (evpipe [1]);
1369 } 1658 }
1370 } 1659 }
1660
1661#if EV_USE_SIGNALFD
1662 if (ev_is_active (&sigfd_w))
1663 close (sigfd);
1664#endif
1371 1665
1372#if EV_USE_INOTIFY 1666#if EV_USE_INOTIFY
1373 if (fs_fd >= 0) 1667 if (fs_fd >= 0)
1374 close (fs_fd); 1668 close (fs_fd);
1375#endif 1669#endif
… …
1399#if EV_IDLE_ENABLE 1693#if EV_IDLE_ENABLE
1400 array_free (idle, [i]); 1694 array_free (idle, [i]);
1401#endif 1695#endif
1402 } 1696 }
1403 1697
1404 ev_free (anfds); anfdmax = 0; 1698 ev_free (anfds); anfds = 0; anfdmax = 0;
1405 1699
1406 /* 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);
1407 array_free (fdchange, EMPTY); 1702 array_free (fdchange, EMPTY);
1408 array_free (timer, EMPTY); 1703 array_free (timer, EMPTY);
1409#if EV_PERIODIC_ENABLE 1704#if EV_PERIODIC_ENABLE
1410 array_free (periodic, EMPTY); 1705 array_free (periodic, EMPTY);
1411#endif 1706#endif
… …
1420 1715
1421 backend = 0; 1716 backend = 0;
1422} 1717}
1423 1718
1424#if EV_USE_INOTIFY 1719#if EV_USE_INOTIFY
1425void inline_size infy_fork (EV_P); 1720inline_size void infy_fork (EV_P);
1426#endif 1721#endif
1427 1722
1428void inline_size 1723inline_size void
1429loop_fork (EV_P) 1724loop_fork (EV_P)
1430{ 1725{
1431#if EV_USE_PORT 1726#if EV_USE_PORT
1432 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 1727 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
1433#endif 1728#endif
… …
1439#endif 1734#endif
1440#if EV_USE_INOTIFY 1735#if EV_USE_INOTIFY
1441 infy_fork (EV_A); 1736 infy_fork (EV_A);
1442#endif 1737#endif
1443 1738
1444 if (ev_is_active (&pipeev)) 1739 if (ev_is_active (&pipe_w))
1445 { 1740 {
1446 /* this "locks" the handlers against writing to the pipe */ 1741 /* this "locks" the handlers against writing to the pipe */
1447 /* while we modify the fd vars */ 1742 /* while we modify the fd vars */
1448 gotsig = 1; 1743 sig_pending = 1;
1449#if EV_ASYNC_ENABLE 1744#if EV_ASYNC_ENABLE
1450 gotasync = 1; 1745 async_pending = 1;
1451#endif 1746#endif
1452 1747
1453 ev_ref (EV_A); 1748 ev_ref (EV_A);
1454 ev_io_stop (EV_A_ &pipeev); 1749 ev_io_stop (EV_A_ &pipe_w);
1455 1750
1456#if EV_USE_EVENTFD 1751#if EV_USE_EVENTFD
1457 if (evfd >= 0) 1752 if (evfd >= 0)
1458 close (evfd); 1753 close (evfd);
1459#endif 1754#endif
1460 1755
1461 if (evpipe [0] >= 0) 1756 if (evpipe [0] >= 0)
1462 { 1757 {
1463 close (evpipe [0]); 1758 EV_WIN32_CLOSE_FD (evpipe [0]);
1464 close (evpipe [1]); 1759 EV_WIN32_CLOSE_FD (evpipe [1]);
1465 } 1760 }
1466 1761
1467 evpipe_init (EV_A); 1762 evpipe_init (EV_A);
1468 /* now iterate over everything, in case we missed something */ 1763 /* now iterate over everything, in case we missed something */
1469 pipecb (EV_A_ &pipeev, EV_READ); 1764 pipecb (EV_A_ &pipe_w, EV_READ);
1470 } 1765 }
1471 1766
1472 postfork = 0; 1767 postfork = 0;
1473} 1768}
1474 1769
1475#if EV_MULTIPLICITY 1770#if EV_MULTIPLICITY
1476 1771
1477struct ev_loop * 1772struct ev_loop *
1478ev_loop_new (unsigned int flags) 1773ev_loop_new (unsigned int flags)
1479{ 1774{
1480 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));
1481 1776
1482 memset (loop, 0, sizeof (struct ev_loop)); 1777 memset (EV_A, 0, sizeof (struct ev_loop));
1483
1484 loop_init (EV_A_ flags); 1778 loop_init (EV_A_ flags);
1485 1779
1486 if (ev_backend (EV_A)) 1780 if (ev_backend (EV_A))
1487 return loop; 1781 return EV_A;
1488 1782
1489 return 0; 1783 return 0;
1490} 1784}
1491 1785
1492void 1786void
… …
1499void 1793void
1500ev_loop_fork (EV_P) 1794ev_loop_fork (EV_P)
1501{ 1795{
1502 postfork = 1; /* must be in line with ev_default_fork */ 1796 postfork = 1; /* must be in line with ev_default_fork */
1503} 1797}
1798#endif /* multiplicity */
1504 1799
1505#if EV_VERIFY 1800#if EV_VERIFY
1506static void noinline 1801static void noinline
1507verify_watcher (EV_P_ W w) 1802verify_watcher (EV_P_ W w)
1508{ 1803{
1509 assert (("watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 1804 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1510 1805
1511 if (w->pending) 1806 if (w->pending)
1512 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));
1513} 1808}
1514 1809
1515static void noinline 1810static void noinline
1516verify_heap (EV_P_ ANHE *heap, int N) 1811verify_heap (EV_P_ ANHE *heap, int N)
1517{ 1812{
1518 int i; 1813 int i;
1519 1814
1520 for (i = HEAP0; i < N + HEAP0; ++i) 1815 for (i = HEAP0; i < N + HEAP0; ++i)
1521 { 1816 {
1522 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));
1523 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])));
1524 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]))));
1525 1820
1526 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 1821 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1527 } 1822 }
1528} 1823}
1529 1824
1530static void noinline 1825static void noinline
1531array_verify (EV_P_ W *ws, int cnt) 1826array_verify (EV_P_ W *ws, int cnt)
1532{ 1827{
1533 while (cnt--) 1828 while (cnt--)
1534 { 1829 {
1535 assert (("active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 1830 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1536 verify_watcher (EV_A_ ws [cnt]); 1831 verify_watcher (EV_A_ ws [cnt]);
1537 } 1832 }
1538} 1833}
1539#endif 1834#endif
1540 1835
1836#if EV_MINIMAL < 2
1541void 1837void
1542ev_loop_verify (EV_P) 1838ev_loop_verify (EV_P)
1543{ 1839{
1544#if EV_VERIFY 1840#if EV_VERIFY
1545 int i; 1841 int i;
… …
1547 1843
1548 assert (activecnt >= -1); 1844 assert (activecnt >= -1);
1549 1845
1550 assert (fdchangemax >= fdchangecnt); 1846 assert (fdchangemax >= fdchangecnt);
1551 for (i = 0; i < fdchangecnt; ++i) 1847 for (i = 0; i < fdchangecnt; ++i)
1552 assert (("negative fd in fdchanges", fdchanges [i] >= 0)); 1848 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
1553 1849
1554 assert (anfdmax >= 0); 1850 assert (anfdmax >= 0);
1555 for (i = 0; i < anfdmax; ++i) 1851 for (i = 0; i < anfdmax; ++i)
1556 for (w = anfds [i].head; w; w = w->next) 1852 for (w = anfds [i].head; w; w = w->next)
1557 { 1853 {
1558 verify_watcher (EV_A_ (W)w); 1854 verify_watcher (EV_A_ (W)w);
1559 assert (("inactive fd watcher on anfd list", ev_active (w) == 1)); 1855 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
1560 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));
1561 } 1857 }
1562 1858
1563 assert (timermax >= timercnt); 1859 assert (timermax >= timercnt);
1564 verify_heap (EV_A_ timers, timercnt); 1860 verify_heap (EV_A_ timers, timercnt);
1565 1861
… …
1594 assert (checkmax >= checkcnt); 1890 assert (checkmax >= checkcnt);
1595 array_verify (EV_A_ (W *)checks, checkcnt); 1891 array_verify (EV_A_ (W *)checks, checkcnt);
1596 1892
1597# if 0 1893# if 0
1598 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)
1599 for (signum = signalmax; signum--; ) if (signals [signum].gotsig) 1895 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
1600# endif
1601#endif 1896# endif
1897#endif
1602} 1898}
1603 1899#endif
1604#endif /* multiplicity */
1605 1900
1606#if EV_MULTIPLICITY 1901#if EV_MULTIPLICITY
1607struct ev_loop * 1902struct ev_loop *
1608ev_default_loop_init (unsigned int flags) 1903ev_default_loop_init (unsigned int flags)
1609#else 1904#else
… …
1612#endif 1907#endif
1613{ 1908{
1614 if (!ev_default_loop_ptr) 1909 if (!ev_default_loop_ptr)
1615 { 1910 {
1616#if EV_MULTIPLICITY 1911#if EV_MULTIPLICITY
1617 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; 1912 EV_P = ev_default_loop_ptr = &default_loop_struct;
1618#else 1913#else
1619 ev_default_loop_ptr = 1; 1914 ev_default_loop_ptr = 1;
1620#endif 1915#endif
1621 1916
1622 loop_init (EV_A_ flags); 1917 loop_init (EV_A_ flags);
… …
1639 1934
1640void 1935void
1641ev_default_destroy (void) 1936ev_default_destroy (void)
1642{ 1937{
1643#if EV_MULTIPLICITY 1938#if EV_MULTIPLICITY
1644 struct ev_loop *loop = ev_default_loop_ptr; 1939 EV_P = ev_default_loop_ptr;
1645#endif 1940#endif
1646 1941
1647 ev_default_loop_ptr = 0; 1942 ev_default_loop_ptr = 0;
1648 1943
1649#ifndef _WIN32 1944#ifndef _WIN32
… …
1656 1951
1657void 1952void
1658ev_default_fork (void) 1953ev_default_fork (void)
1659{ 1954{
1660#if EV_MULTIPLICITY 1955#if EV_MULTIPLICITY
1661 struct ev_loop *loop = ev_default_loop_ptr; 1956 EV_P = ev_default_loop_ptr;
1662#endif 1957#endif
1663 1958
1664 postfork = 1; /* must be in line with ev_loop_fork */ 1959 postfork = 1; /* must be in line with ev_loop_fork */
1665} 1960}
1666 1961
… …
1670ev_invoke (EV_P_ void *w, int revents) 1965ev_invoke (EV_P_ void *w, int revents)
1671{ 1966{
1672 EV_CB_INVOKE ((W)w, revents); 1967 EV_CB_INVOKE ((W)w, revents);
1673} 1968}
1674 1969
1675void inline_speed 1970unsigned int
1676call_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)
1677{ 1984{
1678 int pri; 1985 int pri;
1679 1986
1680 for (pri = NUMPRI; pri--; ) 1987 for (pri = NUMPRI; pri--; )
1681 while (pendingcnt [pri]) 1988 while (pendingcnt [pri])
1682 { 1989 {
1683 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 1990 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1684 1991
1685 if (expect_true (p->w))
1686 {
1687 /*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 */
1688 1994
1689 p->w->pending = 0; 1995 p->w->pending = 0;
1690 EV_CB_INVOKE (p->w, p->events); 1996 EV_CB_INVOKE (p->w, p->events);
1691 EV_FREQUENT_CHECK; 1997 EV_FREQUENT_CHECK;
1692 }
1693 } 1998 }
1694} 1999}
1695 2000
1696#if EV_IDLE_ENABLE 2001#if EV_IDLE_ENABLE
1697void inline_size 2002/* make idle watchers pending. this handles the "call-idle */
2003/* only when higher priorities are idle" logic */
2004inline_size void
1698idle_reify (EV_P) 2005idle_reify (EV_P)
1699{ 2006{
1700 if (expect_false (idleall)) 2007 if (expect_false (idleall))
1701 { 2008 {
1702 int pri; 2009 int pri;
… …
1714 } 2021 }
1715 } 2022 }
1716} 2023}
1717#endif 2024#endif
1718 2025
1719void inline_size 2026/* make timers pending */
2027inline_size void
1720timers_reify (EV_P) 2028timers_reify (EV_P)
1721{ 2029{
1722 EV_FREQUENT_CHECK; 2030 EV_FREQUENT_CHECK;
1723 2031
1724 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now) 2032 if (timercnt && ANHE_at (timers [HEAP0]) < mn_now)
1725 { 2033 {
1726 ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); 2034 do
1727
1728 /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
1729
1730 /* first reschedule or stop timer */
1731 if (w->repeat)
1732 { 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 {
1733 ev_at (w) += w->repeat; 2043 ev_at (w) += w->repeat;
1734 if (ev_at (w) < mn_now) 2044 if (ev_at (w) < mn_now)
1735 ev_at (w) = mn_now; 2045 ev_at (w) = mn_now;
1736 2046
1737 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.));
1738 2048
1739 ANHE_at_cache (timers [HEAP0]); 2049 ANHE_at_cache (timers [HEAP0]);
1740 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);
1741 } 2057 }
1742 else 2058 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
1743 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1744 2059
1745 EV_FREQUENT_CHECK;
1746 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); 2060 feed_reverse_done (EV_A_ EV_TIMEOUT);
1747 } 2061 }
1748} 2062}
1749 2063
1750#if EV_PERIODIC_ENABLE 2064#if EV_PERIODIC_ENABLE
1751void inline_size 2065/* make periodics pending */
2066inline_size void
1752periodics_reify (EV_P) 2067periodics_reify (EV_P)
1753{ 2068{
1754 EV_FREQUENT_CHECK; 2069 EV_FREQUENT_CHECK;
1755 2070
1756 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 2071 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
1757 { 2072 {
1758 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 2073 int feed_count = 0;
1759 2074
1760 /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ 2075 do
1761
1762 /* first reschedule or stop timer */
1763 if (w->reschedule_cb)
1764 { 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 {
1765 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2084 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1766 2085
1767 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));
1768 2087
1769 ANHE_at_cache (periodics [HEAP0]); 2088 ANHE_at_cache (periodics [HEAP0]);
1770 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);
1771 } 2115 }
1772 else if (w->interval) 2116 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now);
1773 {
1774 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1775 /* if next trigger time is not sufficiently in the future, put it there */
1776 /* this might happen because of floating point inexactness */
1777 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
1778 {
1779 ev_at (w) += w->interval;
1780 2117
1781 /* if interval is unreasonably low we might still have a time in the past */
1782 /* so correct this. this will make the periodic very inexact, but the user */
1783 /* has effectively asked to get triggered more often than possible */
1784 if (ev_at (w) < ev_rt_now)
1785 ev_at (w) = ev_rt_now;
1786 }
1787
1788 ANHE_at_cache (periodics [HEAP0]);
1789 downheap (periodics, periodiccnt, HEAP0);
1790 }
1791 else
1792 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1793
1794 EV_FREQUENT_CHECK;
1795 ev_feed_event (EV_A_ (W)w, EV_PERIODIC); 2118 feed_reverse_done (EV_A_ EV_PERIODIC);
1796 } 2119 }
1797} 2120}
1798 2121
2122/* simply recalculate all periodics */
2123/* TODO: maybe ensure that at leats one event happens when jumping forward? */
1799static void noinline 2124static void noinline
1800periodics_reschedule (EV_P) 2125periodics_reschedule (EV_P)
1801{ 2126{
1802 int i; 2127 int i;
1803 2128
… …
1816 2141
1817 reheap (periodics, periodiccnt); 2142 reheap (periodics, periodiccnt);
1818} 2143}
1819#endif 2144#endif
1820 2145
1821void 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
1822time_update (EV_P_ ev_tstamp max_block) 2163time_update (EV_P_ ev_tstamp max_block)
1823{ 2164{
1824 int i;
1825
1826#if EV_USE_MONOTONIC 2165#if EV_USE_MONOTONIC
1827 if (expect_true (have_monotonic)) 2166 if (expect_true (have_monotonic))
1828 { 2167 {
2168 int i;
1829 ev_tstamp odiff = rtmn_diff; 2169 ev_tstamp odiff = rtmn_diff;
1830 2170
1831 mn_now = get_clock (); 2171 mn_now = get_clock ();
1832 2172
1833 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ 2173 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
… …
1859 ev_rt_now = ev_time (); 2199 ev_rt_now = ev_time ();
1860 mn_now = get_clock (); 2200 mn_now = get_clock ();
1861 now_floor = mn_now; 2201 now_floor = mn_now;
1862 } 2202 }
1863 2203
2204 /* no timer adjustment, as the monotonic clock doesn't jump */
2205 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1864# if EV_PERIODIC_ENABLE 2206# if EV_PERIODIC_ENABLE
1865 periodics_reschedule (EV_A); 2207 periodics_reschedule (EV_A);
1866# endif 2208# endif
1867 /* no timer adjustment, as the monotonic clock doesn't jump */
1868 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1869 } 2209 }
1870 else 2210 else
1871#endif 2211#endif
1872 { 2212 {
1873 ev_rt_now = ev_time (); 2213 ev_rt_now = ev_time ();
1874 2214
1875 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))
1876 { 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);
1877#if EV_PERIODIC_ENABLE 2219#if EV_PERIODIC_ENABLE
1878 periodics_reschedule (EV_A); 2220 periodics_reschedule (EV_A);
1879#endif 2221#endif
1880 /* adjust timers. this is easy, as the offset is the same for all of them */
1881 for (i = 0; i < timercnt; ++i)
1882 {
1883 ANHE *he = timers + i + HEAP0;
1884 ANHE_w (*he)->at += ev_rt_now - mn_now;
1885 ANHE_at_cache (*he);
1886 }
1887 } 2222 }
1888 2223
1889 mn_now = ev_rt_now; 2224 mn_now = ev_rt_now;
1890 } 2225 }
1891} 2226}
1892 2227
1893void 2228void
1894ev_ref (EV_P)
1895{
1896 ++activecnt;
1897}
1898
1899void
1900ev_unref (EV_P)
1901{
1902 --activecnt;
1903}
1904
1905void
1906ev_now_update (EV_P)
1907{
1908 time_update (EV_A_ 1e100);
1909}
1910
1911static int loop_done;
1912
1913void
1914ev_loop (EV_P_ int flags) 2229ev_loop (EV_P_ int flags)
1915{ 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
1916 loop_done = EVUNLOOP_CANCEL; 2237 loop_done = EVUNLOOP_CANCEL;
1917 2238
1918 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 */
1919 2240
1920 do 2241 do
1921 { 2242 {
1922#if EV_VERIFY >= 2 2243#if EV_VERIFY >= 2
1923 ev_loop_verify (EV_A); 2244 ev_loop_verify (EV_A);
… …
1936 /* we might have forked, so queue fork handlers */ 2257 /* we might have forked, so queue fork handlers */
1937 if (expect_false (postfork)) 2258 if (expect_false (postfork))
1938 if (forkcnt) 2259 if (forkcnt)
1939 { 2260 {
1940 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2261 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
1941 call_pending (EV_A); 2262 EV_INVOKE_PENDING;
1942 } 2263 }
1943#endif 2264#endif
1944 2265
1945 /* queue prepare watchers (and execute them) */ 2266 /* queue prepare watchers (and execute them) */
1946 if (expect_false (preparecnt)) 2267 if (expect_false (preparecnt))
1947 { 2268 {
1948 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 2269 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1949 call_pending (EV_A); 2270 EV_INVOKE_PENDING;
1950 } 2271 }
1951 2272
1952 if (expect_false (!activecnt)) 2273 if (expect_false (loop_done))
1953 break; 2274 break;
1954 2275
1955 /* we might have forked, so reify kernel state if necessary */ 2276 /* we might have forked, so reify kernel state if necessary */
1956 if (expect_false (postfork)) 2277 if (expect_false (postfork))
1957 loop_fork (EV_A); 2278 loop_fork (EV_A);
… …
1964 ev_tstamp waittime = 0.; 2285 ev_tstamp waittime = 0.;
1965 ev_tstamp sleeptime = 0.; 2286 ev_tstamp sleeptime = 0.;
1966 2287
1967 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 2288 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))
1968 { 2289 {
2290 /* remember old timestamp for io_blocktime calculation */
2291 ev_tstamp prev_mn_now = mn_now;
2292
1969 /* update time to cancel out callback processing overhead */ 2293 /* update time to cancel out callback processing overhead */
1970 time_update (EV_A_ 1e100); 2294 time_update (EV_A_ 1e100);
1971 2295
1972 waittime = MAX_BLOCKTIME; 2296 waittime = MAX_BLOCKTIME;
1973 2297
… …
1983 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;
1984 if (waittime > to) waittime = to; 2308 if (waittime > to) waittime = to;
1985 } 2309 }
1986#endif 2310#endif
1987 2311
2312 /* don't let timeouts decrease the waittime below timeout_blocktime */
1988 if (expect_false (waittime < timeout_blocktime)) 2313 if (expect_false (waittime < timeout_blocktime))
1989 waittime = timeout_blocktime; 2314 waittime = timeout_blocktime;
1990 2315
1991 sleeptime = waittime - backend_fudge; 2316 /* extra check because io_blocktime is commonly 0 */
1992
1993 if (expect_true (sleeptime > io_blocktime)) 2317 if (expect_false (io_blocktime))
1994 sleeptime = io_blocktime;
1995
1996 if (sleeptime)
1997 { 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 {
1998 ev_sleep (sleeptime); 2326 ev_sleep (sleeptime);
1999 waittime -= sleeptime; 2327 waittime -= sleeptime;
2328 }
2000 } 2329 }
2001 } 2330 }
2002 2331
2332#if EV_MINIMAL < 2
2003 ++loop_count; 2333 ++loop_count;
2334#endif
2335 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */
2004 backend_poll (EV_A_ waittime); 2336 backend_poll (EV_A_ waittime);
2337 assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */
2005 2338
2006 /* update ev_rt_now, do magic */ 2339 /* update ev_rt_now, do magic */
2007 time_update (EV_A_ waittime + sleeptime); 2340 time_update (EV_A_ waittime + sleeptime);
2008 } 2341 }
2009 2342
… …
2020 2353
2021 /* queue check watchers, to be executed first */ 2354 /* queue check watchers, to be executed first */
2022 if (expect_false (checkcnt)) 2355 if (expect_false (checkcnt))
2023 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 2356 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
2024 2357
2025 call_pending (EV_A); 2358 EV_INVOKE_PENDING;
2026 } 2359 }
2027 while (expect_true ( 2360 while (expect_true (
2028 activecnt 2361 activecnt
2029 && !loop_done 2362 && !loop_done
2030 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 2363 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK))
2031 )); 2364 ));
2032 2365
2033 if (loop_done == EVUNLOOP_ONE) 2366 if (loop_done == EVUNLOOP_ONE)
2034 loop_done = EVUNLOOP_CANCEL; 2367 loop_done = EVUNLOOP_CANCEL;
2368
2369#if EV_MINIMAL < 2
2370 --loop_depth;
2371#endif
2035} 2372}
2036 2373
2037void 2374void
2038ev_unloop (EV_P_ int how) 2375ev_unloop (EV_P_ int how)
2039{ 2376{
2040 loop_done = how; 2377 loop_done = how;
2041} 2378}
2042 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
2043/*****************************************************************************/ 2417/*****************************************************************************/
2418/* singly-linked list management, used when the expected list length is short */
2044 2419
2045void inline_size 2420inline_size void
2046wlist_add (WL *head, WL elem) 2421wlist_add (WL *head, WL elem)
2047{ 2422{
2048 elem->next = *head; 2423 elem->next = *head;
2049 *head = elem; 2424 *head = elem;
2050} 2425}
2051 2426
2052void inline_size 2427inline_size void
2053wlist_del (WL *head, WL elem) 2428wlist_del (WL *head, WL elem)
2054{ 2429{
2055 while (*head) 2430 while (*head)
2056 { 2431 {
2057 if (*head == elem) 2432 if (expect_true (*head == elem))
2058 { 2433 {
2059 *head = elem->next; 2434 *head = elem->next;
2060 return; 2435 break;
2061 } 2436 }
2062 2437
2063 head = &(*head)->next; 2438 head = &(*head)->next;
2064 } 2439 }
2065} 2440}
2066 2441
2067void inline_speed 2442/* internal, faster, version of ev_clear_pending */
2443inline_speed void
2068clear_pending (EV_P_ W w) 2444clear_pending (EV_P_ W w)
2069{ 2445{
2070 if (w->pending) 2446 if (w->pending)
2071 { 2447 {
2072 pendings [ABSPRI (w)][w->pending - 1].w = 0; 2448 pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w;
2073 w->pending = 0; 2449 w->pending = 0;
2074 } 2450 }
2075} 2451}
2076 2452
2077int 2453int
… …
2081 int pending = w_->pending; 2457 int pending = w_->pending;
2082 2458
2083 if (expect_true (pending)) 2459 if (expect_true (pending))
2084 { 2460 {
2085 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; 2461 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
2462 p->w = (W)&pending_w;
2086 w_->pending = 0; 2463 w_->pending = 0;
2087 p->w = 0;
2088 return p->events; 2464 return p->events;
2089 } 2465 }
2090 else 2466 else
2091 return 0; 2467 return 0;
2092} 2468}
2093 2469
2094void inline_size 2470inline_size void
2095pri_adjust (EV_P_ W w) 2471pri_adjust (EV_P_ W w)
2096{ 2472{
2097 int pri = w->priority; 2473 int pri = ev_priority (w);
2098 pri = pri < EV_MINPRI ? EV_MINPRI : pri; 2474 pri = pri < EV_MINPRI ? EV_MINPRI : pri;
2099 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; 2475 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
2100 w->priority = pri; 2476 ev_set_priority (w, pri);
2101} 2477}
2102 2478
2103void inline_speed 2479inline_speed void
2104ev_start (EV_P_ W w, int active) 2480ev_start (EV_P_ W w, int active)
2105{ 2481{
2106 pri_adjust (EV_A_ w); 2482 pri_adjust (EV_A_ w);
2107 w->active = active; 2483 w->active = active;
2108 ev_ref (EV_A); 2484 ev_ref (EV_A);
2109} 2485}
2110 2486
2111void inline_size 2487inline_size void
2112ev_stop (EV_P_ W w) 2488ev_stop (EV_P_ W w)
2113{ 2489{
2114 ev_unref (EV_A); 2490 ev_unref (EV_A);
2115 w->active = 0; 2491 w->active = 0;
2116} 2492}
… …
2123 int fd = w->fd; 2499 int fd = w->fd;
2124 2500
2125 if (expect_false (ev_is_active (w))) 2501 if (expect_false (ev_is_active (w)))
2126 return; 2502 return;
2127 2503
2128 assert (("ev_io_start called with negative fd", fd >= 0)); 2504 assert (("libev: ev_io_start called with negative fd", fd >= 0));
2129 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))));
2130 2506
2131 EV_FREQUENT_CHECK; 2507 EV_FREQUENT_CHECK;
2132 2508
2133 ev_start (EV_A_ (W)w, 1); 2509 ev_start (EV_A_ (W)w, 1);
2134 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 2510 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2135 wlist_add (&anfds[fd].head, (WL)w); 2511 wlist_add (&anfds[fd].head, (WL)w);
2136 2512
2137 fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); 2513 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2138 w->events &= ~EV_IOFDSET; 2514 w->events &= ~EV__IOFDSET;
2139 2515
2140 EV_FREQUENT_CHECK; 2516 EV_FREQUENT_CHECK;
2141} 2517}
2142 2518
2143void noinline 2519void noinline
… …
2145{ 2521{
2146 clear_pending (EV_A_ (W)w); 2522 clear_pending (EV_A_ (W)w);
2147 if (expect_false (!ev_is_active (w))) 2523 if (expect_false (!ev_is_active (w)))
2148 return; 2524 return;
2149 2525
2150 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));
2151 2527
2152 EV_FREQUENT_CHECK; 2528 EV_FREQUENT_CHECK;
2153 2529
2154 wlist_del (&anfds[w->fd].head, (WL)w); 2530 wlist_del (&anfds[w->fd].head, (WL)w);
2155 ev_stop (EV_A_ (W)w); 2531 ev_stop (EV_A_ (W)w);
… …
2165 if (expect_false (ev_is_active (w))) 2541 if (expect_false (ev_is_active (w)))
2166 return; 2542 return;
2167 2543
2168 ev_at (w) += mn_now; 2544 ev_at (w) += mn_now;
2169 2545
2170 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.));
2171 2547
2172 EV_FREQUENT_CHECK; 2548 EV_FREQUENT_CHECK;
2173 2549
2174 ++timercnt; 2550 ++timercnt;
2175 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); 2551 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
… …
2178 ANHE_at_cache (timers [ev_active (w)]); 2554 ANHE_at_cache (timers [ev_active (w)]);
2179 upheap (timers, ev_active (w)); 2555 upheap (timers, ev_active (w));
2180 2556
2181 EV_FREQUENT_CHECK; 2557 EV_FREQUENT_CHECK;
2182 2558
2183 /*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 2559 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2184} 2560}
2185 2561
2186void noinline 2562void noinline
2187ev_timer_stop (EV_P_ ev_timer *w) 2563ev_timer_stop (EV_P_ ev_timer *w)
2188{ 2564{
… …
2193 EV_FREQUENT_CHECK; 2569 EV_FREQUENT_CHECK;
2194 2570
2195 { 2571 {
2196 int active = ev_active (w); 2572 int active = ev_active (w);
2197 2573
2198 assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); 2574 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
2199 2575
2200 --timercnt; 2576 --timercnt;
2201 2577
2202 if (expect_true (active < timercnt + HEAP0)) 2578 if (expect_true (active < timercnt + HEAP0))
2203 { 2579 {
… …
2236 } 2612 }
2237 2613
2238 EV_FREQUENT_CHECK; 2614 EV_FREQUENT_CHECK;
2239} 2615}
2240 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
2241#if EV_PERIODIC_ENABLE 2623#if EV_PERIODIC_ENABLE
2242void noinline 2624void noinline
2243ev_periodic_start (EV_P_ ev_periodic *w) 2625ev_periodic_start (EV_P_ ev_periodic *w)
2244{ 2626{
2245 if (expect_false (ev_is_active (w))) 2627 if (expect_false (ev_is_active (w)))
… …
2247 2629
2248 if (w->reschedule_cb) 2630 if (w->reschedule_cb)
2249 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2631 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2250 else if (w->interval) 2632 else if (w->interval)
2251 { 2633 {
2252 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.));
2253 /* 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 */
2254 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;
2255 } 2637 }
2256 else 2638 else
2257 ev_at (w) = w->offset; 2639 ev_at (w) = w->offset;
… …
2265 ANHE_at_cache (periodics [ev_active (w)]); 2647 ANHE_at_cache (periodics [ev_active (w)]);
2266 upheap (periodics, ev_active (w)); 2648 upheap (periodics, ev_active (w));
2267 2649
2268 EV_FREQUENT_CHECK; 2650 EV_FREQUENT_CHECK;
2269 2651
2270 /*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));*/
2271} 2653}
2272 2654
2273void noinline 2655void noinline
2274ev_periodic_stop (EV_P_ ev_periodic *w) 2656ev_periodic_stop (EV_P_ ev_periodic *w)
2275{ 2657{
… …
2280 EV_FREQUENT_CHECK; 2662 EV_FREQUENT_CHECK;
2281 2663
2282 { 2664 {
2283 int active = ev_active (w); 2665 int active = ev_active (w);
2284 2666
2285 assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); 2667 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
2286 2668
2287 --periodiccnt; 2669 --periodiccnt;
2288 2670
2289 if (expect_true (active < periodiccnt + HEAP0)) 2671 if (expect_true (active < periodiccnt + HEAP0))
2290 { 2672 {
… …
2312#endif 2694#endif
2313 2695
2314void noinline 2696void noinline
2315ev_signal_start (EV_P_ ev_signal *w) 2697ev_signal_start (EV_P_ ev_signal *w)
2316{ 2698{
2317#if EV_MULTIPLICITY
2318 assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2319#endif
2320 if (expect_false (ev_is_active (w))) 2699 if (expect_false (ev_is_active (w)))
2321 return; 2700 return;
2322 2701
2323 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));
2324 2703
2325 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));
2326 2707
2327 EV_FREQUENT_CHECK; 2708 signals [w->signum - 1].loop = EV_A;
2709#endif
2328 2710
2711 EV_FREQUENT_CHECK;
2712
2713#if EV_USE_SIGNALFD
2714 if (sigfd == -2)
2329 { 2715 {
2330#ifndef _WIN32 2716 sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC);
2331 sigset_t full, prev; 2717 if (sigfd < 0 && errno == EINVAL)
2332 sigfillset (&full); 2718 sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */
2333 sigprocmask (SIG_SETMASK, &full, &prev);
2334#endif
2335 2719
2336 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 */
2337 2723
2338#ifndef _WIN32 2724 sigemptyset (&sigfd_set);
2339 sigprocmask (SIG_SETMASK, &prev, 0); 2725
2340#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 }
2341 } 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
2342 2742
2343 ev_start (EV_A_ (W)w, 1); 2743 ev_start (EV_A_ (W)w, 1);
2344 wlist_add (&signals [w->signum - 1].head, (WL)w); 2744 wlist_add (&signals [w->signum - 1].head, (WL)w);
2345 2745
2346 if (!((WL)w)->next) 2746 if (!((WL)w)->next)
2747# if EV_USE_SIGNALFD
2748 if (sigfd < 0) /*TODO*/
2749# endif
2347 { 2750 {
2348#if _WIN32 2751# if _WIN32
2752 evpipe_init (EV_A);
2753
2349 signal (w->signum, ev_sighandler); 2754 signal (w->signum, ev_sighandler);
2350#else 2755# else
2351 struct sigaction sa; 2756 struct sigaction sa;
2757
2758 evpipe_init (EV_A);
2759
2352 sa.sa_handler = ev_sighandler; 2760 sa.sa_handler = ev_sighandler;
2353 sigfillset (&sa.sa_mask); 2761 sigfillset (&sa.sa_mask);
2354 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 */
2355 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);
2356#endif 2768#endif
2357 } 2769 }
2358 2770
2359 EV_FREQUENT_CHECK; 2771 EV_FREQUENT_CHECK;
2360} 2772}
2361 2773
2362void noinline 2774void noinline
… …
2370 2782
2371 wlist_del (&signals [w->signum - 1].head, (WL)w); 2783 wlist_del (&signals [w->signum - 1].head, (WL)w);
2372 ev_stop (EV_A_ (W)w); 2784 ev_stop (EV_A_ (W)w);
2373 2785
2374 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
2375 signal (w->signum, SIG_DFL); 2802 signal (w->signum, SIG_DFL);
2803 }
2376 2804
2377 EV_FREQUENT_CHECK; 2805 EV_FREQUENT_CHECK;
2378} 2806}
2379 2807
2380void 2808void
2381ev_child_start (EV_P_ ev_child *w) 2809ev_child_start (EV_P_ ev_child *w)
2382{ 2810{
2383#if EV_MULTIPLICITY 2811#if EV_MULTIPLICITY
2384 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));
2385#endif 2813#endif
2386 if (expect_false (ev_is_active (w))) 2814 if (expect_false (ev_is_active (w)))
2387 return; 2815 return;
2388 2816
2389 EV_FREQUENT_CHECK; 2817 EV_FREQUENT_CHECK;
… …
2414# ifdef _WIN32 2842# ifdef _WIN32
2415# undef lstat 2843# undef lstat
2416# define lstat(a,b) _stati64 (a,b) 2844# define lstat(a,b) _stati64 (a,b)
2417# endif 2845# endif
2418 2846
2419#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 */
2420#define MIN_STAT_INTERVAL 0.1074891 2849#define MIN_STAT_INTERVAL 0.1074891
2421 2850
2422static 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);
2423 2852
2424#if EV_USE_INOTIFY 2853#if EV_USE_INOTIFY
2425# define EV_INOTIFY_BUFSIZE 8192 2854# define EV_INOTIFY_BUFSIZE 8192
… …
2429{ 2858{
2430 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);
2431 2860
2432 if (w->wd < 0) 2861 if (w->wd < 0)
2433 { 2862 {
2863 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2434 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 */
2435 2865
2436 /* monitor some parent directory for speedup hints */ 2866 /* monitor some parent directory for speedup hints */
2437 /* note that exceeding the hardcoded limit is not a correctness issue, */ 2867 /* note that exceeding the hardcoded path limit is not a correctness issue, */
2438 /* but an efficiency issue only */ 2868 /* but an efficiency issue only */
2439 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) 2869 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2440 { 2870 {
2441 char path [4096]; 2871 char path [4096];
2442 strcpy (path, w->path); 2872 strcpy (path, w->path);
… …
2446 int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF 2876 int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF
2447 | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); 2877 | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);
2448 2878
2449 char *pend = strrchr (path, '/'); 2879 char *pend = strrchr (path, '/');
2450 2880
2451 if (!pend) 2881 if (!pend || pend == path)
2452 break; /* whoops, no '/', complain to your admin */ 2882 break;
2453 2883
2454 *pend = 0; 2884 *pend = 0;
2455 w->wd = inotify_add_watch (fs_fd, path, mask); 2885 w->wd = inotify_add_watch (fs_fd, path, mask);
2456 } 2886 }
2457 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 2887 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2458 } 2888 }
2459 } 2889 }
2460 else
2461 ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */
2462 2890
2463 if (w->wd >= 0) 2891 if (w->wd >= 0)
2892 {
2893 struct statfs sfs;
2894
2464 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 }
2465} 2913}
2466 2914
2467static void noinline 2915static void noinline
2468infy_del (EV_P_ ev_stat *w) 2916infy_del (EV_P_ ev_stat *w)
2469{ 2917{
… …
2499 2947
2500 if (w->wd == wd || wd == -1) 2948 if (w->wd == wd || wd == -1)
2501 { 2949 {
2502 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 2950 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2503 { 2951 {
2952 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
2504 w->wd = -1; 2953 w->wd = -1;
2505 infy_add (EV_A_ w); /* re-add, no matter what */ 2954 infy_add (EV_A_ w); /* re-add, no matter what */
2506 } 2955 }
2507 2956
2508 stat_timer_cb (EV_A_ &w->timer, 0); 2957 stat_timer_cb (EV_A_ &w->timer, 0);
… …
2521 2970
2522 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)
2523 infy_wd (EV_A_ ev->wd, ev->wd, ev); 2972 infy_wd (EV_A_ ev->wd, ev->wd, ev);
2524} 2973}
2525 2974
2526void inline_size 2975inline_size void
2527infy_init (EV_P) 2976check_2625 (EV_P)
2528{ 2977{
2529 if (fs_fd != -2)
2530 return;
2531
2532 /* kernels < 2.6.25 are borked 2978 /* kernels < 2.6.25 are borked
2533 * 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
2534 */ 2980 */
2535 {
2536 struct utsname buf; 2981 struct utsname buf;
2537 int major, minor, micro; 2982 int major, minor, micro;
2538 2983
2539 fs_fd = -1;
2540
2541 if (uname (&buf)) 2984 if (uname (&buf))
2542 return; 2985 return;
2543 2986
2544 if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3) 2987 if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
2545 return; 2988 return;
2546 2989
2547 if (major < 2 2990 if (major < 2
2548 || (major == 2 && minor < 6) 2991 || (major == 2 && minor < 6)
2549 || (major == 2 && minor == 6 && micro < 25)) 2992 || (major == 2 && minor == 6 && micro < 25))
2550 return; 2993 return;
2551 }
2552 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
2553 fs_fd = inotify_init (); 3019 fs_fd = infy_newfd ();
2554 3020
2555 if (fs_fd >= 0) 3021 if (fs_fd >= 0)
2556 { 3022 {
3023 fd_intern (fs_fd);
2557 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); 3024 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
2558 ev_set_priority (&fs_w, EV_MAXPRI); 3025 ev_set_priority (&fs_w, EV_MAXPRI);
2559 ev_io_start (EV_A_ &fs_w); 3026 ev_io_start (EV_A_ &fs_w);
3027 ev_unref (EV_A);
2560 } 3028 }
2561} 3029}
2562 3030
2563void inline_size 3031inline_size void
2564infy_fork (EV_P) 3032infy_fork (EV_P)
2565{ 3033{
2566 int slot; 3034 int slot;
2567 3035
2568 if (fs_fd < 0) 3036 if (fs_fd < 0)
2569 return; 3037 return;
2570 3038
3039 ev_ref (EV_A);
3040 ev_io_stop (EV_A_ &fs_w);
2571 close (fs_fd); 3041 close (fs_fd);
2572 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 }
2573 3051
2574 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3052 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
2575 { 3053 {
2576 WL w_ = fs_hash [slot].head; 3054 WL w_ = fs_hash [slot].head;
2577 fs_hash [slot].head = 0; 3055 fs_hash [slot].head = 0;
… …
2584 w->wd = -1; 3062 w->wd = -1;
2585 3063
2586 if (fs_fd >= 0) 3064 if (fs_fd >= 0)
2587 infy_add (EV_A_ w); /* re-add, no matter what */ 3065 infy_add (EV_A_ w); /* re-add, no matter what */
2588 else 3066 else
2589 ev_timer_start (EV_A_ &w->timer); 3067 ev_timer_again (EV_A_ &w->timer);
2590 } 3068 }
2591 } 3069 }
2592} 3070}
2593 3071
2594#endif 3072#endif
… …
2649ev_stat_start (EV_P_ ev_stat *w) 3127ev_stat_start (EV_P_ ev_stat *w)
2650{ 3128{
2651 if (expect_false (ev_is_active (w))) 3129 if (expect_false (ev_is_active (w)))
2652 return; 3130 return;
2653 3131
2654 /* since we use memcmp, we need to clear any padding data etc. */
2655 memset (&w->prev, 0, sizeof (ev_statdata));
2656 memset (&w->attr, 0, sizeof (ev_statdata));
2657
2658 ev_stat_stat (EV_A_ w); 3132 ev_stat_stat (EV_A_ w);
2659 3133
3134 if (w->interval < MIN_STAT_INTERVAL && w->interval)
2660 if (w->interval < MIN_STAT_INTERVAL) 3135 w->interval = MIN_STAT_INTERVAL;
2661 w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
2662 3136
2663 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);
2664 ev_set_priority (&w->timer, ev_priority (w)); 3138 ev_set_priority (&w->timer, ev_priority (w));
2665 3139
2666#if EV_USE_INOTIFY 3140#if EV_USE_INOTIFY
2667 infy_init (EV_A); 3141 infy_init (EV_A);
2668 3142
2669 if (fs_fd >= 0) 3143 if (fs_fd >= 0)
2670 infy_add (EV_A_ w); 3144 infy_add (EV_A_ w);
2671 else 3145 else
2672#endif 3146#endif
2673 ev_timer_start (EV_A_ &w->timer); 3147 ev_timer_again (EV_A_ &w->timer);
2674 3148
2675 ev_start (EV_A_ (W)w, 1); 3149 ev_start (EV_A_ (W)w, 1);
2676 3150
2677 EV_FREQUENT_CHECK; 3151 EV_FREQUENT_CHECK;
2678} 3152}
… …
2838embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 3312embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
2839{ 3313{
2840 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); 3314 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
2841 3315
2842 { 3316 {
2843 struct ev_loop *loop = w->other; 3317 EV_P = w->other;
2844 3318
2845 while (fdchangecnt) 3319 while (fdchangecnt)
2846 { 3320 {
2847 fd_reify (EV_A); 3321 fd_reify (EV_A);
2848 ev_loop (EV_A_ EVLOOP_NONBLOCK); 3322 ev_loop (EV_A_ EVLOOP_NONBLOCK);
… …
2853static void 3327static void
2854embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) 3328embed_fork_cb (EV_P_ ev_fork *fork_w, int revents)
2855{ 3329{
2856 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));
2857 3331
3332 ev_embed_stop (EV_A_ w);
3333
2858 { 3334 {
2859 struct ev_loop *loop = w->other; 3335 EV_P = w->other;
2860 3336
2861 ev_loop_fork (EV_A); 3337 ev_loop_fork (EV_A);
3338 ev_loop (EV_A_ EVLOOP_NONBLOCK);
2862 } 3339 }
3340
3341 ev_embed_start (EV_A_ w);
2863} 3342}
2864 3343
2865#if 0 3344#if 0
2866static void 3345static void
2867embed_idle_cb (EV_P_ ev_idle *idle, int revents) 3346embed_idle_cb (EV_P_ ev_idle *idle, int revents)
… …
2875{ 3354{
2876 if (expect_false (ev_is_active (w))) 3355 if (expect_false (ev_is_active (w)))
2877 return; 3356 return;
2878 3357
2879 { 3358 {
2880 struct ev_loop *loop = w->other; 3359 EV_P = w->other;
2881 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 ()));
2882 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);
2883 } 3362 }
2884 3363
2885 EV_FREQUENT_CHECK; 3364 EV_FREQUENT_CHECK;
2886 3365
… …
2997 3476
2998void 3477void
2999ev_async_send (EV_P_ ev_async *w) 3478ev_async_send (EV_P_ ev_async *w)
3000{ 3479{
3001 w->sent = 1; 3480 w->sent = 1;
3002 evpipe_write (EV_A_ &gotasync); 3481 evpipe_write (EV_A_ &async_pending);
3003} 3482}
3004#endif 3483#endif
3005 3484
3006/*****************************************************************************/ 3485/*****************************************************************************/
3007 3486
… …
3069 ev_timer_set (&once->to, timeout, 0.); 3548 ev_timer_set (&once->to, timeout, 0.);
3070 ev_timer_start (EV_A_ &once->to); 3549 ev_timer_start (EV_A_ &once->to);
3071 } 3550 }
3072} 3551}
3073 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
3074#if EV_MULTIPLICITY 3661#if EV_MULTIPLICITY
3075 #include "ev_wrap.h" 3662 #include "ev_wrap.h"
3076#endif 3663#endif
3077 3664
3078#ifdef __cplusplus 3665#ifdef __cplusplus

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