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Comparing libev/ev.c (file contents):
Revision 1.221 by root, Sun Apr 6 12:44:49 2008 UTC vs.
Revision 1.313 by root, Wed Aug 19 23:44:51 2009 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
… …
47# include EV_CONFIG_H 47# include EV_CONFIG_H
48# else 48# else
49# include "config.h" 49# include "config.h"
50# endif 50# endif
51 51
52# if HAVE_CLOCK_SYSCALL
53# ifndef EV_USE_CLOCK_SYSCALL
54# define EV_USE_CLOCK_SYSCALL 1
55# ifndef EV_USE_REALTIME
56# define EV_USE_REALTIME 0
57# endif
58# ifndef EV_USE_MONOTONIC
59# define EV_USE_MONOTONIC 1
60# endif
61# endif
62# elif !defined(EV_USE_CLOCK_SYSCALL)
63# define EV_USE_CLOCK_SYSCALL 0
64# endif
65
52# if HAVE_CLOCK_GETTIME 66# if HAVE_CLOCK_GETTIME
53# ifndef EV_USE_MONOTONIC 67# ifndef EV_USE_MONOTONIC
54# define EV_USE_MONOTONIC 1 68# define EV_USE_MONOTONIC 1
55# endif 69# endif
56# ifndef EV_USE_REALTIME 70# ifndef EV_USE_REALTIME
57# define EV_USE_REALTIME 1 71# define EV_USE_REALTIME 0
58# endif 72# endif
59# else 73# else
60# ifndef EV_USE_MONOTONIC 74# ifndef EV_USE_MONOTONIC
61# define EV_USE_MONOTONIC 0 75# define EV_USE_MONOTONIC 0
62# endif 76# endif
… …
119# else 133# else
120# define EV_USE_INOTIFY 0 134# define EV_USE_INOTIFY 0
121# endif 135# endif
122# endif 136# endif
123 137
138# ifndef EV_USE_SIGNALFD
139# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H
140# define EV_USE_SIGNALFD 1
141# else
142# define EV_USE_SIGNALFD 0
143# endif
144# endif
145
124# ifndef EV_USE_EVENTFD 146# ifndef EV_USE_EVENTFD
125# if HAVE_EVENTFD 147# if HAVE_EVENTFD
126# define EV_USE_EVENTFD 1 148# define EV_USE_EVENTFD 1
127# else 149# else
128# define EV_USE_EVENTFD 0 150# define EV_USE_EVENTFD 0
129# endif 151# endif
130# endif 152# endif
131 153
132#endif 154#endif
133 155
134#include <math.h> 156#include <math.h>
135#include <stdlib.h> 157#include <stdlib.h>
136#include <fcntl.h> 158#include <fcntl.h>
… …
154#ifndef _WIN32 176#ifndef _WIN32
155# include <sys/time.h> 177# include <sys/time.h>
156# include <sys/wait.h> 178# include <sys/wait.h>
157# include <unistd.h> 179# include <unistd.h>
158#else 180#else
181# include <io.h>
159# define WIN32_LEAN_AND_MEAN 182# define WIN32_LEAN_AND_MEAN
160# include <windows.h> 183# include <windows.h>
161# ifndef EV_SELECT_IS_WINSOCKET 184# ifndef EV_SELECT_IS_WINSOCKET
162# define EV_SELECT_IS_WINSOCKET 1 185# define EV_SELECT_IS_WINSOCKET 1
163# endif 186# endif
164#endif 187#endif
165 188
166/* this block tries to deduce configuration from header-defined symbols and defaults */ 189/* this block tries to deduce configuration from header-defined symbols and defaults */
167 190
191/* try to deduce the maximum number of signals on this platform */
192#if defined (EV_NSIG)
193/* use what's provided */
194#elif defined (NSIG)
195# define EV_NSIG (NSIG)
196#elif defined(_NSIG)
197# define EV_NSIG (_NSIG)
198#elif defined (SIGMAX)
199# define EV_NSIG (SIGMAX+1)
200#elif defined (SIG_MAX)
201# define EV_NSIG (SIG_MAX+1)
202#elif defined (_SIG_MAX)
203# define EV_NSIG (_SIG_MAX+1)
204#elif defined (MAXSIG)
205# define EV_NSIG (MAXSIG+1)
206#elif defined (MAX_SIG)
207# define EV_NSIG (MAX_SIG+1)
208#elif defined (SIGARRAYSIZE)
209# define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */
210#elif defined (_sys_nsig)
211# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
212#else
213# error "unable to find value for NSIG, please report"
214/* to make it compile regardless, just remove the above line */
215# define EV_NSIG 65
216#endif
217
218#ifndef EV_USE_CLOCK_SYSCALL
219# if __linux && __GLIBC__ >= 2
220# define EV_USE_CLOCK_SYSCALL 1
221# else
222# define EV_USE_CLOCK_SYSCALL 0
223# endif
224#endif
225
168#ifndef EV_USE_MONOTONIC 226#ifndef EV_USE_MONOTONIC
227# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0
228# define EV_USE_MONOTONIC 1
229# else
169# define EV_USE_MONOTONIC 0 230# define EV_USE_MONOTONIC 0
231# endif
170#endif 232#endif
171 233
172#ifndef EV_USE_REALTIME 234#ifndef EV_USE_REALTIME
173# define EV_USE_REALTIME 0 235# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
174#endif 236#endif
175 237
176#ifndef EV_USE_NANOSLEEP 238#ifndef EV_USE_NANOSLEEP
239# if _POSIX_C_SOURCE >= 199309L
240# define EV_USE_NANOSLEEP 1
241# else
177# define EV_USE_NANOSLEEP 0 242# define EV_USE_NANOSLEEP 0
243# endif
178#endif 244#endif
179 245
180#ifndef EV_USE_SELECT 246#ifndef EV_USE_SELECT
181# define EV_USE_SELECT 1 247# define EV_USE_SELECT 1
182#endif 248#endif
… …
235# else 301# else
236# define EV_USE_EVENTFD 0 302# define EV_USE_EVENTFD 0
237# endif 303# endif
238#endif 304#endif
239 305
306#ifndef EV_USE_SIGNALFD
307# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 9))
308# define EV_USE_SIGNALFD 1
309# else
310# define EV_USE_SIGNALFD 0
311# endif
312#endif
313
314#if 0 /* debugging */
315# define EV_VERIFY 3
316# define EV_USE_4HEAP 1
317# define EV_HEAP_CACHE_AT 1
318#endif
319
320#ifndef EV_VERIFY
321# define EV_VERIFY !EV_MINIMAL
322#endif
323
324#ifndef EV_USE_4HEAP
325# define EV_USE_4HEAP !EV_MINIMAL
326#endif
327
328#ifndef EV_HEAP_CACHE_AT
329# define EV_HEAP_CACHE_AT !EV_MINIMAL
330#endif
331
332/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
333/* which makes programs even slower. might work on other unices, too. */
334#if EV_USE_CLOCK_SYSCALL
335# include <syscall.h>
336# ifdef SYS_clock_gettime
337# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
338# undef EV_USE_MONOTONIC
339# define EV_USE_MONOTONIC 1
340# else
341# undef EV_USE_CLOCK_SYSCALL
342# define EV_USE_CLOCK_SYSCALL 0
343# endif
344#endif
345
240/* this block fixes any misconfiguration where we know we run into trouble otherwise */ 346/* this block fixes any misconfiguration where we know we run into trouble otherwise */
241 347
242#ifndef CLOCK_MONOTONIC 348#ifndef CLOCK_MONOTONIC
243# undef EV_USE_MONOTONIC 349# undef EV_USE_MONOTONIC
244# define EV_USE_MONOTONIC 0 350# define EV_USE_MONOTONIC 0
… …
259# include <sys/select.h> 365# include <sys/select.h>
260# endif 366# endif
261#endif 367#endif
262 368
263#if EV_USE_INOTIFY 369#if EV_USE_INOTIFY
370# include <sys/utsname.h>
371# include <sys/statfs.h>
264# include <sys/inotify.h> 372# include <sys/inotify.h>
373/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
374# ifndef IN_DONT_FOLLOW
375# undef EV_USE_INOTIFY
376# define EV_USE_INOTIFY 0
377# endif
265#endif 378#endif
266 379
267#if EV_SELECT_IS_WINSOCKET 380#if EV_SELECT_IS_WINSOCKET
268# include <winsock.h> 381# include <winsock.h>
269#endif 382#endif
270 383
271#if EV_USE_EVENTFD 384#if EV_USE_EVENTFD
272/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 385/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
273# include <stdint.h> 386# include <stdint.h>
387# ifndef EFD_NONBLOCK
388# define EFD_NONBLOCK O_NONBLOCK
389# endif
390# ifndef EFD_CLOEXEC
391# ifdef O_CLOEXEC
392# define EFD_CLOEXEC O_CLOEXEC
393# else
394# define EFD_CLOEXEC 02000000
395# endif
396# endif
397# ifdef __cplusplus
398extern "C" {
399# endif
274int eventfd (unsigned int initval, int flags); 400int eventfd (unsigned int initval, int flags);
401# ifdef __cplusplus
402}
403# endif
404#endif
405
406#if EV_USE_SIGNALFD
407# include <sys/signalfd.h>
275#endif 408#endif
276 409
277/**/ 410/**/
411
412#if EV_VERIFY >= 3
413# define EV_FREQUENT_CHECK ev_loop_verify (EV_A)
414#else
415# define EV_FREQUENT_CHECK do { } while (0)
416#endif
278 417
279/* 418/*
280 * This is used to avoid floating point rounding problems. 419 * This is used to avoid floating point rounding problems.
281 * It is added to ev_rt_now when scheduling periodics 420 * It is added to ev_rt_now when scheduling periodics
282 * to ensure progress, time-wise, even when rounding 421 * to ensure progress, time-wise, even when rounding
… …
294# define expect(expr,value) __builtin_expect ((expr),(value)) 433# define expect(expr,value) __builtin_expect ((expr),(value))
295# define noinline __attribute__ ((noinline)) 434# define noinline __attribute__ ((noinline))
296#else 435#else
297# define expect(expr,value) (expr) 436# define expect(expr,value) (expr)
298# define noinline 437# define noinline
299# if __STDC_VERSION__ < 199901L 438# if __STDC_VERSION__ < 199901L && __GNUC__ < 2
300# define inline 439# define inline
301# endif 440# endif
302#endif 441#endif
303 442
304#define expect_false(expr) expect ((expr) != 0, 0) 443#define expect_false(expr) expect ((expr) != 0, 0)
… …
309# define inline_speed static noinline 448# define inline_speed static noinline
310#else 449#else
311# define inline_speed static inline 450# define inline_speed static inline
312#endif 451#endif
313 452
314#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 453#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
454
455#if EV_MINPRI == EV_MAXPRI
456# define ABSPRI(w) (((W)w), 0)
457#else
315#define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 458# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
459#endif
316 460
317#define EMPTY /* required for microsofts broken pseudo-c compiler */ 461#define EMPTY /* required for microsofts broken pseudo-c compiler */
318#define EMPTY2(a,b) /* used to suppress some warnings */ 462#define EMPTY2(a,b) /* used to suppress some warnings */
319 463
320typedef ev_watcher *W; 464typedef ev_watcher *W;
321typedef ev_watcher_list *WL; 465typedef ev_watcher_list *WL;
322typedef ev_watcher_time *WT; 466typedef ev_watcher_time *WT;
323 467
324#if EV_USE_MONOTONIC 468#define ev_active(w) ((W)(w))->active
469#define ev_at(w) ((WT)(w))->at
470
471#if EV_USE_REALTIME
325/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 472/* sig_atomic_t is used to avoid per-thread variables or locking but still */
326/* giving it a reasonably high chance of working on typical architetcures */ 473/* giving it a reasonably high chance of working on typical architetcures */
474static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
475#endif
476
477#if EV_USE_MONOTONIC
327static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 478static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
479#endif
480
481#ifndef EV_FD_TO_WIN32_HANDLE
482# define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd)
483#endif
484#ifndef EV_WIN32_HANDLE_TO_FD
485# define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (fd, 0)
486#endif
487#ifndef EV_WIN32_CLOSE_FD
488# define EV_WIN32_CLOSE_FD(fd) close (fd)
328#endif 489#endif
329 490
330#ifdef _WIN32 491#ifdef _WIN32
331# include "ev_win32.c" 492# include "ev_win32.c"
332#endif 493#endif
… …
340{ 501{
341 syserr_cb = cb; 502 syserr_cb = cb;
342} 503}
343 504
344static void noinline 505static void noinline
345syserr (const char *msg) 506ev_syserr (const char *msg)
346{ 507{
347 if (!msg) 508 if (!msg)
348 msg = "(libev) system error"; 509 msg = "(libev) system error";
349 510
350 if (syserr_cb) 511 if (syserr_cb)
… …
354 perror (msg); 515 perror (msg);
355 abort (); 516 abort ();
356 } 517 }
357} 518}
358 519
520static void *
521ev_realloc_emul (void *ptr, long size)
522{
523 /* some systems, notably openbsd and darwin, fail to properly
524 * implement realloc (x, 0) (as required by both ansi c-98 and
525 * the single unix specification, so work around them here.
526 */
527
528 if (size)
529 return realloc (ptr, size);
530
531 free (ptr);
532 return 0;
533}
534
359static void *(*alloc)(void *ptr, long size); 535static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;
360 536
361void 537void
362ev_set_allocator (void *(*cb)(void *ptr, long size)) 538ev_set_allocator (void *(*cb)(void *ptr, long size))
363{ 539{
364 alloc = cb; 540 alloc = cb;
365} 541}
366 542
367inline_speed void * 543inline_speed void *
368ev_realloc (void *ptr, long size) 544ev_realloc (void *ptr, long size)
369{ 545{
370 ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); 546 ptr = alloc (ptr, size);
371 547
372 if (!ptr && size) 548 if (!ptr && size)
373 { 549 {
374 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 550 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
375 abort (); 551 abort ();
… …
381#define ev_malloc(size) ev_realloc (0, (size)) 557#define ev_malloc(size) ev_realloc (0, (size))
382#define ev_free(ptr) ev_realloc ((ptr), 0) 558#define ev_free(ptr) ev_realloc ((ptr), 0)
383 559
384/*****************************************************************************/ 560/*****************************************************************************/
385 561
562/* set in reify when reification needed */
563#define EV_ANFD_REIFY 1
564
565/* file descriptor info structure */
386typedef struct 566typedef struct
387{ 567{
388 WL head; 568 WL head;
389 unsigned char events; 569 unsigned char events; /* the events watched for */
570 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
571 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
390 unsigned char reify; 572 unsigned char unused;
573#if EV_USE_EPOLL
574 unsigned int egen; /* generation counter to counter epoll bugs */
575#endif
391#if EV_SELECT_IS_WINSOCKET 576#if EV_SELECT_IS_WINSOCKET
392 SOCKET handle; 577 SOCKET handle;
393#endif 578#endif
394} ANFD; 579} ANFD;
395 580
581/* stores the pending event set for a given watcher */
396typedef struct 582typedef struct
397{ 583{
398 W w; 584 W w;
399 int events; 585 int events; /* the pending event set for the given watcher */
400} ANPENDING; 586} ANPENDING;
401 587
402#if EV_USE_INOTIFY 588#if EV_USE_INOTIFY
589/* hash table entry per inotify-id */
403typedef struct 590typedef struct
404{ 591{
405 WL head; 592 WL head;
406} ANFS; 593} ANFS;
594#endif
595
596/* Heap Entry */
597#if EV_HEAP_CACHE_AT
598 /* a heap element */
599 typedef struct {
600 ev_tstamp at;
601 WT w;
602 } ANHE;
603
604 #define ANHE_w(he) (he).w /* access watcher, read-write */
605 #define ANHE_at(he) (he).at /* access cached at, read-only */
606 #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */
607#else
608 /* a heap element */
609 typedef WT ANHE;
610
611 #define ANHE_w(he) (he)
612 #define ANHE_at(he) (he)->at
613 #define ANHE_at_cache(he)
407#endif 614#endif
408 615
409#if EV_MULTIPLICITY 616#if EV_MULTIPLICITY
410 617
411 struct ev_loop 618 struct ev_loop
… …
430 637
431 static int ev_default_loop_ptr; 638 static int ev_default_loop_ptr;
432 639
433#endif 640#endif
434 641
642#if EV_MINIMAL < 2
643# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
644# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
645# define EV_INVOKE_PENDING invoke_cb (EV_A)
646#else
647# define EV_RELEASE_CB (void)0
648# define EV_ACQUIRE_CB (void)0
649# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
650#endif
651
652#define EVUNLOOP_RECURSE 0x80
653
435/*****************************************************************************/ 654/*****************************************************************************/
436 655
656#ifndef EV_HAVE_EV_TIME
437ev_tstamp 657ev_tstamp
438ev_time (void) 658ev_time (void)
439{ 659{
440#if EV_USE_REALTIME 660#if EV_USE_REALTIME
661 if (expect_true (have_realtime))
662 {
441 struct timespec ts; 663 struct timespec ts;
442 clock_gettime (CLOCK_REALTIME, &ts); 664 clock_gettime (CLOCK_REALTIME, &ts);
443 return ts.tv_sec + ts.tv_nsec * 1e-9; 665 return ts.tv_sec + ts.tv_nsec * 1e-9;
444#else 666 }
667#endif
668
445 struct timeval tv; 669 struct timeval tv;
446 gettimeofday (&tv, 0); 670 gettimeofday (&tv, 0);
447 return tv.tv_sec + tv.tv_usec * 1e-6; 671 return tv.tv_sec + tv.tv_usec * 1e-6;
448#endif
449} 672}
673#endif
450 674
451ev_tstamp inline_size 675inline_size ev_tstamp
452get_clock (void) 676get_clock (void)
453{ 677{
454#if EV_USE_MONOTONIC 678#if EV_USE_MONOTONIC
455 if (expect_true (have_monotonic)) 679 if (expect_true (have_monotonic))
456 { 680 {
… …
489 struct timeval tv; 713 struct timeval tv;
490 714
491 tv.tv_sec = (time_t)delay; 715 tv.tv_sec = (time_t)delay;
492 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); 716 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
493 717
718 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
719 /* something not guaranteed by newer posix versions, but guaranteed */
720 /* by older ones */
494 select (0, 0, 0, 0, &tv); 721 select (0, 0, 0, 0, &tv);
495#endif 722#endif
496 } 723 }
497} 724}
498 725
499/*****************************************************************************/ 726/*****************************************************************************/
500 727
501int inline_size 728#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
729
730/* find a suitable new size for the given array, */
731/* hopefully by rounding to a ncie-to-malloc size */
732inline_size int
502array_nextsize (int elem, int cur, int cnt) 733array_nextsize (int elem, int cur, int cnt)
503{ 734{
504 int ncur = cur + 1; 735 int ncur = cur + 1;
505 736
506 do 737 do
507 ncur <<= 1; 738 ncur <<= 1;
508 while (cnt > ncur); 739 while (cnt > ncur);
509 740
510 /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */ 741 /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */
511 if (elem * ncur > 4096) 742 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
512 { 743 {
513 ncur *= elem; 744 ncur *= elem;
514 ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095; 745 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
515 ncur = ncur - sizeof (void *) * 4; 746 ncur = ncur - sizeof (void *) * 4;
516 ncur /= elem; 747 ncur /= elem;
517 } 748 }
518 749
519 return ncur; 750 return ncur;
… …
523array_realloc (int elem, void *base, int *cur, int cnt) 754array_realloc (int elem, void *base, int *cur, int cnt)
524{ 755{
525 *cur = array_nextsize (elem, *cur, cnt); 756 *cur = array_nextsize (elem, *cur, cnt);
526 return ev_realloc (base, elem * *cur); 757 return ev_realloc (base, elem * *cur);
527} 758}
759
760#define array_init_zero(base,count) \
761 memset ((void *)(base), 0, sizeof (*(base)) * (count))
528 762
529#define array_needsize(type,base,cur,cnt,init) \ 763#define array_needsize(type,base,cur,cnt,init) \
530 if (expect_false ((cnt) > (cur))) \ 764 if (expect_false ((cnt) > (cur))) \
531 { \ 765 { \
532 int ocur_ = (cur); \ 766 int ocur_ = (cur); \
… …
544 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ 778 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
545 } 779 }
546#endif 780#endif
547 781
548#define array_free(stem, idx) \ 782#define array_free(stem, idx) \
549 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; 783 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
550 784
551/*****************************************************************************/ 785/*****************************************************************************/
786
787/* dummy callback for pending events */
788static void noinline
789pendingcb (EV_P_ ev_prepare *w, int revents)
790{
791}
552 792
553void noinline 793void noinline
554ev_feed_event (EV_P_ void *w, int revents) 794ev_feed_event (EV_P_ void *w, int revents)
555{ 795{
556 W w_ = (W)w; 796 W w_ = (W)w;
… …
565 pendings [pri][w_->pending - 1].w = w_; 805 pendings [pri][w_->pending - 1].w = w_;
566 pendings [pri][w_->pending - 1].events = revents; 806 pendings [pri][w_->pending - 1].events = revents;
567 } 807 }
568} 808}
569 809
570void inline_speed 810inline_speed void
811feed_reverse (EV_P_ W w)
812{
813 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2);
814 rfeeds [rfeedcnt++] = w;
815}
816
817inline_size void
818feed_reverse_done (EV_P_ int revents)
819{
820 do
821 ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents);
822 while (rfeedcnt);
823}
824
825inline_speed void
571queue_events (EV_P_ W *events, int eventcnt, int type) 826queue_events (EV_P_ W *events, int eventcnt, int type)
572{ 827{
573 int i; 828 int i;
574 829
575 for (i = 0; i < eventcnt; ++i) 830 for (i = 0; i < eventcnt; ++i)
576 ev_feed_event (EV_A_ events [i], type); 831 ev_feed_event (EV_A_ events [i], type);
577} 832}
578 833
579/*****************************************************************************/ 834/*****************************************************************************/
580 835
581void inline_size 836inline_speed void
582anfds_init (ANFD *base, int count)
583{
584 while (count--)
585 {
586 base->head = 0;
587 base->events = EV_NONE;
588 base->reify = 0;
589
590 ++base;
591 }
592}
593
594void inline_speed
595fd_event (EV_P_ int fd, int revents) 837fd_event_nc (EV_P_ int fd, int revents)
596{ 838{
597 ANFD *anfd = anfds + fd; 839 ANFD *anfd = anfds + fd;
598 ev_io *w; 840 ev_io *w;
599 841
600 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 842 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
604 if (ev) 846 if (ev)
605 ev_feed_event (EV_A_ (W)w, ev); 847 ev_feed_event (EV_A_ (W)w, ev);
606 } 848 }
607} 849}
608 850
851/* do not submit kernel events for fds that have reify set */
852/* because that means they changed while we were polling for new events */
853inline_speed void
854fd_event (EV_P_ int fd, int revents)
855{
856 ANFD *anfd = anfds + fd;
857
858 if (expect_true (!anfd->reify))
859 fd_event_nc (EV_A_ fd, revents);
860}
861
609void 862void
610ev_feed_fd_event (EV_P_ int fd, int revents) 863ev_feed_fd_event (EV_P_ int fd, int revents)
611{ 864{
612 if (fd >= 0 && fd < anfdmax) 865 if (fd >= 0 && fd < anfdmax)
613 fd_event (EV_A_ fd, revents); 866 fd_event_nc (EV_A_ fd, revents);
614} 867}
615 868
616void inline_size 869/* make sure the external fd watch events are in-sync */
870/* with the kernel/libev internal state */
871inline_size void
617fd_reify (EV_P) 872fd_reify (EV_P)
618{ 873{
619 int i; 874 int i;
620 875
621 for (i = 0; i < fdchangecnt; ++i) 876 for (i = 0; i < fdchangecnt; ++i)
… …
630 events |= (unsigned char)w->events; 885 events |= (unsigned char)w->events;
631 886
632#if EV_SELECT_IS_WINSOCKET 887#if EV_SELECT_IS_WINSOCKET
633 if (events) 888 if (events)
634 { 889 {
635 unsigned long argp; 890 unsigned long arg;
636 #ifdef EV_FD_TO_WIN32_HANDLE
637 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 891 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
638 #else
639 anfd->handle = _get_osfhandle (fd);
640 #endif
641 assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); 892 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
642 } 893 }
643#endif 894#endif
644 895
645 { 896 {
646 unsigned char o_events = anfd->events; 897 unsigned char o_events = anfd->events;
647 unsigned char o_reify = anfd->reify; 898 unsigned char o_reify = anfd->reify;
648 899
649 anfd->reify = 0; 900 anfd->reify = 0;
650 anfd->events = events; 901 anfd->events = events;
651 902
652 if (o_events != events || o_reify & EV_IOFDSET) 903 if (o_events != events || o_reify & EV__IOFDSET)
653 backend_modify (EV_A_ fd, o_events, events); 904 backend_modify (EV_A_ fd, o_events, events);
654 } 905 }
655 } 906 }
656 907
657 fdchangecnt = 0; 908 fdchangecnt = 0;
658} 909}
659 910
660void inline_size 911/* something about the given fd changed */
912inline_size void
661fd_change (EV_P_ int fd, int flags) 913fd_change (EV_P_ int fd, int flags)
662{ 914{
663 unsigned char reify = anfds [fd].reify; 915 unsigned char reify = anfds [fd].reify;
664 anfds [fd].reify |= flags; 916 anfds [fd].reify |= flags;
665 917
… …
669 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 921 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
670 fdchanges [fdchangecnt - 1] = fd; 922 fdchanges [fdchangecnt - 1] = fd;
671 } 923 }
672} 924}
673 925
674void inline_speed 926/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
927inline_speed void
675fd_kill (EV_P_ int fd) 928fd_kill (EV_P_ int fd)
676{ 929{
677 ev_io *w; 930 ev_io *w;
678 931
679 while ((w = (ev_io *)anfds [fd].head)) 932 while ((w = (ev_io *)anfds [fd].head))
… …
681 ev_io_stop (EV_A_ w); 934 ev_io_stop (EV_A_ w);
682 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 935 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
683 } 936 }
684} 937}
685 938
686int inline_size 939/* check whether the given fd is atcually valid, for error recovery */
940inline_size int
687fd_valid (int fd) 941fd_valid (int fd)
688{ 942{
689#ifdef _WIN32 943#ifdef _WIN32
690 return _get_osfhandle (fd) != -1; 944 return _get_osfhandle (fd) != -1;
691#else 945#else
… …
699{ 953{
700 int fd; 954 int fd;
701 955
702 for (fd = 0; fd < anfdmax; ++fd) 956 for (fd = 0; fd < anfdmax; ++fd)
703 if (anfds [fd].events) 957 if (anfds [fd].events)
704 if (!fd_valid (fd) == -1 && errno == EBADF) 958 if (!fd_valid (fd) && errno == EBADF)
705 fd_kill (EV_A_ fd); 959 fd_kill (EV_A_ fd);
706} 960}
707 961
708/* called on ENOMEM in select/poll to kill some fds and retry */ 962/* called on ENOMEM in select/poll to kill some fds and retry */
709static void noinline 963static void noinline
… …
713 967
714 for (fd = anfdmax; fd--; ) 968 for (fd = anfdmax; fd--; )
715 if (anfds [fd].events) 969 if (anfds [fd].events)
716 { 970 {
717 fd_kill (EV_A_ fd); 971 fd_kill (EV_A_ fd);
718 return; 972 break;
719 } 973 }
720} 974}
721 975
722/* usually called after fork if backend needs to re-arm all fds from scratch */ 976/* usually called after fork if backend needs to re-arm all fds from scratch */
723static void noinline 977static void noinline
… …
727 981
728 for (fd = 0; fd < anfdmax; ++fd) 982 for (fd = 0; fd < anfdmax; ++fd)
729 if (anfds [fd].events) 983 if (anfds [fd].events)
730 { 984 {
731 anfds [fd].events = 0; 985 anfds [fd].events = 0;
986 anfds [fd].emask = 0;
732 fd_change (EV_A_ fd, EV_IOFDSET | 1); 987 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
733 } 988 }
734} 989}
735 990
736/*****************************************************************************/ 991/*****************************************************************************/
737 992
738void inline_speed 993/*
739upheap (WT *heap, int k) 994 * the heap functions want a real array index. array index 0 uis guaranteed to not
740{ 995 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
741 WT w = heap [k]; 996 * the branching factor of the d-tree.
997 */
742 998
743 while (k) 999/*
744 { 1000 * at the moment we allow libev the luxury of two heaps,
745 int p = (k - 1) >> 1; 1001 * a small-code-size 2-heap one and a ~1.5kb larger 4-heap
1002 * which is more cache-efficient.
1003 * the difference is about 5% with 50000+ watchers.
1004 */
1005#if EV_USE_4HEAP
746 1006
747 if (heap [p]->at <= w->at) 1007#define DHEAP 4
1008#define HEAP0 (DHEAP - 1) /* index of first element in heap */
1009#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0)
1010#define UPHEAP_DONE(p,k) ((p) == (k))
1011
1012/* away from the root */
1013inline_speed void
1014downheap (ANHE *heap, int N, int k)
1015{
1016 ANHE he = heap [k];
1017 ANHE *E = heap + N + HEAP0;
1018
1019 for (;;)
1020 {
1021 ev_tstamp minat;
1022 ANHE *minpos;
1023 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;
1024
1025 /* find minimum child */
1026 if (expect_true (pos + DHEAP - 1 < E))
1027 {
1028 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
1029 if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos));
1030 if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos));
1031 if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos));
1032 }
1033 else if (pos < E)
1034 {
1035 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
1036 if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos));
1037 if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos));
1038 if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos));
1039 }
1040 else
748 break; 1041 break;
749 1042
1043 if (ANHE_at (he) <= minat)
1044 break;
1045
1046 heap [k] = *minpos;
1047 ev_active (ANHE_w (*minpos)) = k;
1048
1049 k = minpos - heap;
1050 }
1051
1052 heap [k] = he;
1053 ev_active (ANHE_w (he)) = k;
1054}
1055
1056#else /* 4HEAP */
1057
1058#define HEAP0 1
1059#define HPARENT(k) ((k) >> 1)
1060#define UPHEAP_DONE(p,k) (!(p))
1061
1062/* away from the root */
1063inline_speed void
1064downheap (ANHE *heap, int N, int k)
1065{
1066 ANHE he = heap [k];
1067
1068 for (;;)
1069 {
1070 int c = k << 1;
1071
1072 if (c >= N + HEAP0)
1073 break;
1074
1075 c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])
1076 ? 1 : 0;
1077
1078 if (ANHE_at (he) <= ANHE_at (heap [c]))
1079 break;
1080
1081 heap [k] = heap [c];
1082 ev_active (ANHE_w (heap [k])) = k;
1083
1084 k = c;
1085 }
1086
1087 heap [k] = he;
1088 ev_active (ANHE_w (he)) = k;
1089}
1090#endif
1091
1092/* towards the root */
1093inline_speed void
1094upheap (ANHE *heap, int k)
1095{
1096 ANHE he = heap [k];
1097
1098 for (;;)
1099 {
1100 int p = HPARENT (k);
1101
1102 if (UPHEAP_DONE (p, k) || ANHE_at (heap [p]) <= ANHE_at (he))
1103 break;
1104
750 heap [k] = heap [p]; 1105 heap [k] = heap [p];
751 ((W)heap [k])->active = k + 1; 1106 ev_active (ANHE_w (heap [k])) = k;
752 k = p; 1107 k = p;
753 } 1108 }
754 1109
755 heap [k] = w; 1110 heap [k] = he;
756 ((W)heap [k])->active = k + 1; 1111 ev_active (ANHE_w (he)) = k;
757} 1112}
758 1113
759void inline_speed 1114/* move an element suitably so it is in a correct place */
760downheap (WT *heap, int N, int k) 1115inline_size void
761{
762 WT w = heap [k];
763
764 for (;;)
765 {
766 int c = (k << 1) + 1;
767
768 if (c >= N)
769 break;
770
771 c += c + 1 < N && heap [c]->at > heap [c + 1]->at
772 ? 1 : 0;
773
774 if (w->at <= heap [c]->at)
775 break;
776
777 heap [k] = heap [c];
778 ((W)heap [k])->active = k + 1;
779
780 k = c;
781 }
782
783 heap [k] = w;
784 ((W)heap [k])->active = k + 1;
785}
786
787void inline_size
788adjustheap (WT *heap, int N, int k) 1116adjustheap (ANHE *heap, int N, int k)
789{ 1117{
1118 if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)]))
790 upheap (heap, k); 1119 upheap (heap, k);
1120 else
791 downheap (heap, N, k); 1121 downheap (heap, N, k);
1122}
1123
1124/* rebuild the heap: this function is used only once and executed rarely */
1125inline_size void
1126reheap (ANHE *heap, int N)
1127{
1128 int i;
1129
1130 /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */
1131 /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */
1132 for (i = 0; i < N; ++i)
1133 upheap (heap, i + HEAP0);
792} 1134}
793 1135
794/*****************************************************************************/ 1136/*****************************************************************************/
795 1137
1138/* associate signal watchers to a signal signal */
796typedef struct 1139typedef struct
797{ 1140{
1141 EV_ATOMIC_T pending;
1142#if EV_MULTIPLICITY
1143 EV_P;
1144#endif
798 WL head; 1145 WL head;
799 EV_ATOMIC_T gotsig;
800} ANSIG; 1146} ANSIG;
801 1147
802static ANSIG *signals; 1148static ANSIG signals [EV_NSIG - 1];
803static int signalmax;
804
805static EV_ATOMIC_T gotsig;
806
807void inline_size
808signals_init (ANSIG *base, int count)
809{
810 while (count--)
811 {
812 base->head = 0;
813 base->gotsig = 0;
814
815 ++base;
816 }
817}
818 1149
819/*****************************************************************************/ 1150/*****************************************************************************/
820 1151
821void inline_speed 1152/* used to prepare libev internal fd's */
1153/* this is not fork-safe */
1154inline_speed void
822fd_intern (int fd) 1155fd_intern (int fd)
823{ 1156{
824#ifdef _WIN32 1157#ifdef _WIN32
825 int arg = 1; 1158 unsigned long arg = 1;
826 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); 1159 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
827#else 1160#else
828 fcntl (fd, F_SETFD, FD_CLOEXEC); 1161 fcntl (fd, F_SETFD, FD_CLOEXEC);
829 fcntl (fd, F_SETFL, O_NONBLOCK); 1162 fcntl (fd, F_SETFL, O_NONBLOCK);
830#endif 1163#endif
831} 1164}
832 1165
833static void noinline 1166static void noinline
834evpipe_init (EV_P) 1167evpipe_init (EV_P)
835{ 1168{
836 if (!ev_is_active (&pipeev)) 1169 if (!ev_is_active (&pipe_w))
837 { 1170 {
838#if EV_USE_EVENTFD 1171#if EV_USE_EVENTFD
1172 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1173 if (evfd < 0 && errno == EINVAL)
839 if ((evfd = eventfd (0, 0)) >= 0) 1174 evfd = eventfd (0, 0);
1175
1176 if (evfd >= 0)
840 { 1177 {
841 evpipe [0] = -1; 1178 evpipe [0] = -1;
842 fd_intern (evfd); 1179 fd_intern (evfd); /* doing it twice doesn't hurt */
843 ev_io_set (&pipeev, evfd, EV_READ); 1180 ev_io_set (&pipe_w, evfd, EV_READ);
844 } 1181 }
845 else 1182 else
846#endif 1183#endif
847 { 1184 {
848 while (pipe (evpipe)) 1185 while (pipe (evpipe))
849 syserr ("(libev) error creating signal/async pipe"); 1186 ev_syserr ("(libev) error creating signal/async pipe");
850 1187
851 fd_intern (evpipe [0]); 1188 fd_intern (evpipe [0]);
852 fd_intern (evpipe [1]); 1189 fd_intern (evpipe [1]);
853 ev_io_set (&pipeev, evpipe [0], EV_READ); 1190 ev_io_set (&pipe_w, evpipe [0], EV_READ);
854 } 1191 }
855 1192
856 ev_io_start (EV_A_ &pipeev); 1193 ev_io_start (EV_A_ &pipe_w);
857 ev_unref (EV_A); /* watcher should not keep loop alive */ 1194 ev_unref (EV_A); /* watcher should not keep loop alive */
858 } 1195 }
859} 1196}
860 1197
861void inline_size 1198inline_size void
862evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1199evpipe_write (EV_P_ EV_ATOMIC_T *flag)
863{ 1200{
864 if (!*flag) 1201 if (!*flag)
865 { 1202 {
866 int old_errno = errno; /* save errno because write might clobber it */ 1203 int old_errno = errno; /* save errno because write might clobber it */
… …
879 1216
880 errno = old_errno; 1217 errno = old_errno;
881 } 1218 }
882} 1219}
883 1220
1221/* called whenever the libev signal pipe */
1222/* got some events (signal, async) */
884static void 1223static void
885pipecb (EV_P_ ev_io *iow, int revents) 1224pipecb (EV_P_ ev_io *iow, int revents)
886{ 1225{
1226 int i;
1227
887#if EV_USE_EVENTFD 1228#if EV_USE_EVENTFD
888 if (evfd >= 0) 1229 if (evfd >= 0)
889 { 1230 {
890 uint64_t counter = 1; 1231 uint64_t counter;
891 read (evfd, &counter, sizeof (uint64_t)); 1232 read (evfd, &counter, sizeof (uint64_t));
892 } 1233 }
893 else 1234 else
894#endif 1235#endif
895 { 1236 {
896 char dummy; 1237 char dummy;
897 read (evpipe [0], &dummy, 1); 1238 read (evpipe [0], &dummy, 1);
898 } 1239 }
899 1240
900 if (gotsig && ev_is_default_loop (EV_A)) 1241 if (sig_pending)
901 { 1242 {
902 int signum; 1243 sig_pending = 0;
903 gotsig = 0;
904 1244
905 for (signum = signalmax; signum--; ) 1245 for (i = EV_NSIG - 1; i--; )
906 if (signals [signum].gotsig) 1246 if (expect_false (signals [i].pending))
907 ev_feed_signal_event (EV_A_ signum + 1); 1247 ev_feed_signal_event (EV_A_ i + 1);
908 } 1248 }
909 1249
910#if EV_ASYNC_ENABLE 1250#if EV_ASYNC_ENABLE
911 if (gotasync) 1251 if (async_pending)
912 { 1252 {
913 int i; 1253 async_pending = 0;
914 gotasync = 0;
915 1254
916 for (i = asynccnt; i--; ) 1255 for (i = asynccnt; i--; )
917 if (asyncs [i]->sent) 1256 if (asyncs [i]->sent)
918 { 1257 {
919 asyncs [i]->sent = 0; 1258 asyncs [i]->sent = 0;
… …
927 1266
928static void 1267static void
929ev_sighandler (int signum) 1268ev_sighandler (int signum)
930{ 1269{
931#if EV_MULTIPLICITY 1270#if EV_MULTIPLICITY
932 struct ev_loop *loop = &default_loop_struct; 1271 EV_P = signals [signum - 1].loop;
933#endif 1272#endif
934 1273
935#if _WIN32 1274#if _WIN32
936 signal (signum, ev_sighandler); 1275 signal (signum, ev_sighandler);
937#endif 1276#endif
938 1277
939 signals [signum - 1].gotsig = 1; 1278 signals [signum - 1].pending = 1;
940 evpipe_write (EV_A_ &gotsig); 1279 evpipe_write (EV_A_ &sig_pending);
941} 1280}
942 1281
943void noinline 1282void noinline
944ev_feed_signal_event (EV_P_ int signum) 1283ev_feed_signal_event (EV_P_ int signum)
945{ 1284{
946 WL w; 1285 WL w;
947 1286
1287 if (expect_false (signum <= 0 || signum > EV_NSIG))
1288 return;
1289
1290 --signum;
1291
948#if EV_MULTIPLICITY 1292#if EV_MULTIPLICITY
949 assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); 1293 /* it is permissible to try to feed a signal to the wrong loop */
950#endif 1294 /* or, likely more useful, feeding a signal nobody is waiting for */
951 1295
952 --signum; 1296 if (expect_false (signals [signum].loop != EV_A))
953
954 if (signum < 0 || signum >= signalmax)
955 return; 1297 return;
1298#endif
956 1299
957 signals [signum].gotsig = 0; 1300 signals [signum].pending = 0;
958 1301
959 for (w = signals [signum].head; w; w = w->next) 1302 for (w = signals [signum].head; w; w = w->next)
960 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 1303 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
961} 1304}
962 1305
1306#if EV_USE_SIGNALFD
1307static void
1308sigfdcb (EV_P_ ev_io *iow, int revents)
1309{
1310 struct signalfd_siginfo si[2], *sip; /* these structs are big */
1311
1312 for (;;)
1313 {
1314 ssize_t res = read (sigfd, si, sizeof (si));
1315
1316 /* not ISO-C, as res might be -1, but works with SuS */
1317 for (sip = si; (char *)sip < (char *)si + res; ++sip)
1318 ev_feed_signal_event (EV_A_ sip->ssi_signo);
1319
1320 if (res < (ssize_t)sizeof (si))
1321 break;
1322 }
1323}
1324#endif
1325
963/*****************************************************************************/ 1326/*****************************************************************************/
964 1327
965static WL childs [EV_PID_HASHSIZE]; 1328static WL childs [EV_PID_HASHSIZE];
966 1329
967#ifndef _WIN32 1330#ifndef _WIN32
… …
970 1333
971#ifndef WIFCONTINUED 1334#ifndef WIFCONTINUED
972# define WIFCONTINUED(status) 0 1335# define WIFCONTINUED(status) 0
973#endif 1336#endif
974 1337
975void inline_speed 1338/* handle a single child status event */
1339inline_speed void
976child_reap (EV_P_ int chain, int pid, int status) 1340child_reap (EV_P_ int chain, int pid, int status)
977{ 1341{
978 ev_child *w; 1342 ev_child *w;
979 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 1343 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
980 1344
… …
993 1357
994#ifndef WCONTINUED 1358#ifndef WCONTINUED
995# define WCONTINUED 0 1359# define WCONTINUED 0
996#endif 1360#endif
997 1361
1362/* called on sigchld etc., calls waitpid */
998static void 1363static void
999childcb (EV_P_ ev_signal *sw, int revents) 1364childcb (EV_P_ ev_signal *sw, int revents)
1000{ 1365{
1001 int pid, status; 1366 int pid, status;
1002 1367
… …
1083 /* kqueue is borked on everything but netbsd apparently */ 1448 /* kqueue is borked on everything but netbsd apparently */
1084 /* it usually doesn't work correctly on anything but sockets and pipes */ 1449 /* it usually doesn't work correctly on anything but sockets and pipes */
1085 flags &= ~EVBACKEND_KQUEUE; 1450 flags &= ~EVBACKEND_KQUEUE;
1086#endif 1451#endif
1087#ifdef __APPLE__ 1452#ifdef __APPLE__
1088 // flags &= ~EVBACKEND_KQUEUE; for documentation 1453 /* only select works correctly on that "unix-certified" platform */
1089 flags &= ~EVBACKEND_POLL; 1454 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1455 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1090#endif 1456#endif
1091 1457
1092 return flags; 1458 return flags;
1093} 1459}
1094 1460
… …
1108ev_backend (EV_P) 1474ev_backend (EV_P)
1109{ 1475{
1110 return backend; 1476 return backend;
1111} 1477}
1112 1478
1479#if EV_MINIMAL < 2
1113unsigned int 1480unsigned int
1114ev_loop_count (EV_P) 1481ev_loop_count (EV_P)
1115{ 1482{
1116 return loop_count; 1483 return loop_count;
1117} 1484}
1118 1485
1486unsigned int
1487ev_loop_depth (EV_P)
1488{
1489 return loop_depth;
1490}
1491
1119void 1492void
1120ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 1493ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
1121{ 1494{
1122 io_blocktime = interval; 1495 io_blocktime = interval;
1123} 1496}
… …
1126ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 1499ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
1127{ 1500{
1128 timeout_blocktime = interval; 1501 timeout_blocktime = interval;
1129} 1502}
1130 1503
1504void
1505ev_set_userdata (EV_P_ void *data)
1506{
1507 userdata = data;
1508}
1509
1510void *
1511ev_userdata (EV_P)
1512{
1513 return userdata;
1514}
1515
1516void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))
1517{
1518 invoke_cb = invoke_pending_cb;
1519}
1520
1521void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))
1522{
1523 release_cb = release;
1524 acquire_cb = acquire;
1525}
1526#endif
1527
1528/* initialise a loop structure, must be zero-initialised */
1131static void noinline 1529static void noinline
1132loop_init (EV_P_ unsigned int flags) 1530loop_init (EV_P_ unsigned int flags)
1133{ 1531{
1134 if (!backend) 1532 if (!backend)
1135 { 1533 {
1534#if EV_USE_REALTIME
1535 if (!have_realtime)
1536 {
1537 struct timespec ts;
1538
1539 if (!clock_gettime (CLOCK_REALTIME, &ts))
1540 have_realtime = 1;
1541 }
1542#endif
1543
1136#if EV_USE_MONOTONIC 1544#if EV_USE_MONOTONIC
1545 if (!have_monotonic)
1137 { 1546 {
1138 struct timespec ts; 1547 struct timespec ts;
1548
1139 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 1549 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1140 have_monotonic = 1; 1550 have_monotonic = 1;
1141 } 1551 }
1142#endif 1552#endif
1553
1554 /* pid check not overridable via env */
1555#ifndef _WIN32
1556 if (flags & EVFLAG_FORKCHECK)
1557 curpid = getpid ();
1558#endif
1559
1560 if (!(flags & EVFLAG_NOENV)
1561 && !enable_secure ()
1562 && getenv ("LIBEV_FLAGS"))
1563 flags = atoi (getenv ("LIBEV_FLAGS"));
1143 1564
1144 ev_rt_now = ev_time (); 1565 ev_rt_now = ev_time ();
1145 mn_now = get_clock (); 1566 mn_now = get_clock ();
1146 now_floor = mn_now; 1567 now_floor = mn_now;
1147 rtmn_diff = ev_rt_now - mn_now; 1568 rtmn_diff = ev_rt_now - mn_now;
1569#if EV_MINIMAL < 2
1570 invoke_cb = ev_invoke_pending;
1571#endif
1148 1572
1149 io_blocktime = 0.; 1573 io_blocktime = 0.;
1150 timeout_blocktime = 0.; 1574 timeout_blocktime = 0.;
1151 backend = 0; 1575 backend = 0;
1152 backend_fd = -1; 1576 backend_fd = -1;
1153 gotasync = 0; 1577 sig_pending = 0;
1578#if EV_ASYNC_ENABLE
1579 async_pending = 0;
1580#endif
1154#if EV_USE_INOTIFY 1581#if EV_USE_INOTIFY
1155 fs_fd = -2; 1582 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1156#endif 1583#endif
1157 1584#if EV_USE_SIGNALFD
1158 /* pid check not overridable via env */ 1585 sigfd = flags & EVFLAG_NOSIGFD ? -1 : -2;
1159#ifndef _WIN32
1160 if (flags & EVFLAG_FORKCHECK)
1161 curpid = getpid ();
1162#endif 1586#endif
1163 1587
1164 if (!(flags & EVFLAG_NOENV)
1165 && !enable_secure ()
1166 && getenv ("LIBEV_FLAGS"))
1167 flags = atoi (getenv ("LIBEV_FLAGS"));
1168
1169 if (!(flags & 0x0000ffffUL)) 1588 if (!(flags & 0x0000ffffU))
1170 flags |= ev_recommended_backends (); 1589 flags |= ev_recommended_backends ();
1171 1590
1172#if EV_USE_PORT 1591#if EV_USE_PORT
1173 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 1592 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1174#endif 1593#endif
… …
1183#endif 1602#endif
1184#if EV_USE_SELECT 1603#if EV_USE_SELECT
1185 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 1604 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1186#endif 1605#endif
1187 1606
1607 ev_prepare_init (&pending_w, pendingcb);
1608
1188 ev_init (&pipeev, pipecb); 1609 ev_init (&pipe_w, pipecb);
1189 ev_set_priority (&pipeev, EV_MAXPRI); 1610 ev_set_priority (&pipe_w, EV_MAXPRI);
1190 } 1611 }
1191} 1612}
1192 1613
1614/* free up a loop structure */
1193static void noinline 1615static void noinline
1194loop_destroy (EV_P) 1616loop_destroy (EV_P)
1195{ 1617{
1196 int i; 1618 int i;
1197 1619
1198 if (ev_is_active (&pipeev)) 1620 if (ev_is_active (&pipe_w))
1199 { 1621 {
1200 ev_ref (EV_A); /* signal watcher */ 1622 /*ev_ref (EV_A);*/
1201 ev_io_stop (EV_A_ &pipeev); 1623 /*ev_io_stop (EV_A_ &pipe_w);*/
1202 1624
1203#if EV_USE_EVENTFD 1625#if EV_USE_EVENTFD
1204 if (evfd >= 0) 1626 if (evfd >= 0)
1205 close (evfd); 1627 close (evfd);
1206#endif 1628#endif
1207 1629
1208 if (evpipe [0] >= 0) 1630 if (evpipe [0] >= 0)
1209 { 1631 {
1210 close (evpipe [0]); 1632 EV_WIN32_CLOSE_FD (evpipe [0]);
1211 close (evpipe [1]); 1633 EV_WIN32_CLOSE_FD (evpipe [1]);
1212 } 1634 }
1213 } 1635 }
1636
1637#if EV_USE_SIGNALFD
1638 if (ev_is_active (&sigfd_w))
1639 {
1640 /*ev_ref (EV_A);*/
1641 /*ev_io_stop (EV_A_ &sigfd_w);*/
1642
1643 close (sigfd);
1644 }
1645#endif
1214 1646
1215#if EV_USE_INOTIFY 1647#if EV_USE_INOTIFY
1216 if (fs_fd >= 0) 1648 if (fs_fd >= 0)
1217 close (fs_fd); 1649 close (fs_fd);
1218#endif 1650#endif
… …
1242#if EV_IDLE_ENABLE 1674#if EV_IDLE_ENABLE
1243 array_free (idle, [i]); 1675 array_free (idle, [i]);
1244#endif 1676#endif
1245 } 1677 }
1246 1678
1247 ev_free (anfds); anfdmax = 0; 1679 ev_free (anfds); anfds = 0; anfdmax = 0;
1248 1680
1249 /* have to use the microsoft-never-gets-it-right macro */ 1681 /* have to use the microsoft-never-gets-it-right macro */
1682 array_free (rfeed, EMPTY);
1250 array_free (fdchange, EMPTY); 1683 array_free (fdchange, EMPTY);
1251 array_free (timer, EMPTY); 1684 array_free (timer, EMPTY);
1252#if EV_PERIODIC_ENABLE 1685#if EV_PERIODIC_ENABLE
1253 array_free (periodic, EMPTY); 1686 array_free (periodic, EMPTY);
1254#endif 1687#endif
… …
1262#endif 1695#endif
1263 1696
1264 backend = 0; 1697 backend = 0;
1265} 1698}
1266 1699
1700#if EV_USE_INOTIFY
1267void inline_size infy_fork (EV_P); 1701inline_size void infy_fork (EV_P);
1702#endif
1268 1703
1269void inline_size 1704inline_size void
1270loop_fork (EV_P) 1705loop_fork (EV_P)
1271{ 1706{
1272#if EV_USE_PORT 1707#if EV_USE_PORT
1273 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 1708 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
1274#endif 1709#endif
… …
1280#endif 1715#endif
1281#if EV_USE_INOTIFY 1716#if EV_USE_INOTIFY
1282 infy_fork (EV_A); 1717 infy_fork (EV_A);
1283#endif 1718#endif
1284 1719
1285 if (ev_is_active (&pipeev)) 1720 if (ev_is_active (&pipe_w))
1286 { 1721 {
1287 /* this "locks" the handlers against writing to the pipe */ 1722 /* this "locks" the handlers against writing to the pipe */
1288 /* while we modify the fd vars */ 1723 /* while we modify the fd vars */
1289 gotsig = 1; 1724 sig_pending = 1;
1290#if EV_ASYNC_ENABLE 1725#if EV_ASYNC_ENABLE
1291 gotasync = 1; 1726 async_pending = 1;
1292#endif 1727#endif
1293 1728
1294 ev_ref (EV_A); 1729 ev_ref (EV_A);
1295 ev_io_stop (EV_A_ &pipeev); 1730 ev_io_stop (EV_A_ &pipe_w);
1296 1731
1297#if EV_USE_EVENTFD 1732#if EV_USE_EVENTFD
1298 if (evfd >= 0) 1733 if (evfd >= 0)
1299 close (evfd); 1734 close (evfd);
1300#endif 1735#endif
1301 1736
1302 if (evpipe [0] >= 0) 1737 if (evpipe [0] >= 0)
1303 { 1738 {
1304 close (evpipe [0]); 1739 EV_WIN32_CLOSE_FD (evpipe [0]);
1305 close (evpipe [1]); 1740 EV_WIN32_CLOSE_FD (evpipe [1]);
1306 } 1741 }
1307 1742
1308 evpipe_init (EV_A); 1743 evpipe_init (EV_A);
1309 /* now iterate over everything, in case we missed something */ 1744 /* now iterate over everything, in case we missed something */
1310 pipecb (EV_A_ &pipeev, EV_READ); 1745 pipecb (EV_A_ &pipe_w, EV_READ);
1311 } 1746 }
1312 1747
1313 postfork = 0; 1748 postfork = 0;
1314} 1749}
1315 1750
1316#if EV_MULTIPLICITY 1751#if EV_MULTIPLICITY
1752
1317struct ev_loop * 1753struct ev_loop *
1318ev_loop_new (unsigned int flags) 1754ev_loop_new (unsigned int flags)
1319{ 1755{
1320 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 1756 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1321 1757
1322 memset (loop, 0, sizeof (struct ev_loop)); 1758 memset (EV_A, 0, sizeof (struct ev_loop));
1323
1324 loop_init (EV_A_ flags); 1759 loop_init (EV_A_ flags);
1325 1760
1326 if (ev_backend (EV_A)) 1761 if (ev_backend (EV_A))
1327 return loop; 1762 return EV_A;
1328 1763
1329 return 0; 1764 return 0;
1330} 1765}
1331 1766
1332void 1767void
… …
1339void 1774void
1340ev_loop_fork (EV_P) 1775ev_loop_fork (EV_P)
1341{ 1776{
1342 postfork = 1; /* must be in line with ev_default_fork */ 1777 postfork = 1; /* must be in line with ev_default_fork */
1343} 1778}
1779#endif /* multiplicity */
1344 1780
1781#if EV_VERIFY
1782static void noinline
1783verify_watcher (EV_P_ W w)
1784{
1785 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1786
1787 if (w->pending)
1788 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1789}
1790
1791static void noinline
1792verify_heap (EV_P_ ANHE *heap, int N)
1793{
1794 int i;
1795
1796 for (i = HEAP0; i < N + HEAP0; ++i)
1797 {
1798 assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i));
1799 assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i])));
1800 assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i]))));
1801
1802 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1803 }
1804}
1805
1806static void noinline
1807array_verify (EV_P_ W *ws, int cnt)
1808{
1809 while (cnt--)
1810 {
1811 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1812 verify_watcher (EV_A_ ws [cnt]);
1813 }
1814}
1815#endif
1816
1817#if EV_MINIMAL < 2
1818void
1819ev_loop_verify (EV_P)
1820{
1821#if EV_VERIFY
1822 int i;
1823 WL w;
1824
1825 assert (activecnt >= -1);
1826
1827 assert (fdchangemax >= fdchangecnt);
1828 for (i = 0; i < fdchangecnt; ++i)
1829 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
1830
1831 assert (anfdmax >= 0);
1832 for (i = 0; i < anfdmax; ++i)
1833 for (w = anfds [i].head; w; w = w->next)
1834 {
1835 verify_watcher (EV_A_ (W)w);
1836 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
1837 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
1838 }
1839
1840 assert (timermax >= timercnt);
1841 verify_heap (EV_A_ timers, timercnt);
1842
1843#if EV_PERIODIC_ENABLE
1844 assert (periodicmax >= periodiccnt);
1845 verify_heap (EV_A_ periodics, periodiccnt);
1846#endif
1847
1848 for (i = NUMPRI; i--; )
1849 {
1850 assert (pendingmax [i] >= pendingcnt [i]);
1851#if EV_IDLE_ENABLE
1852 assert (idleall >= 0);
1853 assert (idlemax [i] >= idlecnt [i]);
1854 array_verify (EV_A_ (W *)idles [i], idlecnt [i]);
1855#endif
1856 }
1857
1858#if EV_FORK_ENABLE
1859 assert (forkmax >= forkcnt);
1860 array_verify (EV_A_ (W *)forks, forkcnt);
1861#endif
1862
1863#if EV_ASYNC_ENABLE
1864 assert (asyncmax >= asynccnt);
1865 array_verify (EV_A_ (W *)asyncs, asynccnt);
1866#endif
1867
1868 assert (preparemax >= preparecnt);
1869 array_verify (EV_A_ (W *)prepares, preparecnt);
1870
1871 assert (checkmax >= checkcnt);
1872 array_verify (EV_A_ (W *)checks, checkcnt);
1873
1874# if 0
1875 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
1876 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
1877# endif
1878#endif
1879}
1345#endif 1880#endif
1346 1881
1347#if EV_MULTIPLICITY 1882#if EV_MULTIPLICITY
1348struct ev_loop * 1883struct ev_loop *
1349ev_default_loop_init (unsigned int flags) 1884ev_default_loop_init (unsigned int flags)
… …
1353#endif 1888#endif
1354{ 1889{
1355 if (!ev_default_loop_ptr) 1890 if (!ev_default_loop_ptr)
1356 { 1891 {
1357#if EV_MULTIPLICITY 1892#if EV_MULTIPLICITY
1358 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; 1893 EV_P = ev_default_loop_ptr = &default_loop_struct;
1359#else 1894#else
1360 ev_default_loop_ptr = 1; 1895 ev_default_loop_ptr = 1;
1361#endif 1896#endif
1362 1897
1363 loop_init (EV_A_ flags); 1898 loop_init (EV_A_ flags);
… …
1380 1915
1381void 1916void
1382ev_default_destroy (void) 1917ev_default_destroy (void)
1383{ 1918{
1384#if EV_MULTIPLICITY 1919#if EV_MULTIPLICITY
1385 struct ev_loop *loop = ev_default_loop_ptr; 1920 EV_P = ev_default_loop_ptr;
1386#endif 1921#endif
1922
1923 ev_default_loop_ptr = 0;
1387 1924
1388#ifndef _WIN32 1925#ifndef _WIN32
1389 ev_ref (EV_A); /* child watcher */ 1926 ev_ref (EV_A); /* child watcher */
1390 ev_signal_stop (EV_A_ &childev); 1927 ev_signal_stop (EV_A_ &childev);
1391#endif 1928#endif
… …
1395 1932
1396void 1933void
1397ev_default_fork (void) 1934ev_default_fork (void)
1398{ 1935{
1399#if EV_MULTIPLICITY 1936#if EV_MULTIPLICITY
1400 struct ev_loop *loop = ev_default_loop_ptr; 1937 EV_P = ev_default_loop_ptr;
1401#endif 1938#endif
1402 1939
1403 if (backend)
1404 postfork = 1; /* must be in line with ev_loop_fork */ 1940 postfork = 1; /* must be in line with ev_loop_fork */
1405} 1941}
1406 1942
1407/*****************************************************************************/ 1943/*****************************************************************************/
1408 1944
1409void 1945void
1410ev_invoke (EV_P_ void *w, int revents) 1946ev_invoke (EV_P_ void *w, int revents)
1411{ 1947{
1412 EV_CB_INVOKE ((W)w, revents); 1948 EV_CB_INVOKE ((W)w, revents);
1413} 1949}
1414 1950
1415void inline_speed 1951unsigned int
1416call_pending (EV_P) 1952ev_pending_count (EV_P)
1953{
1954 int pri;
1955 unsigned int count = 0;
1956
1957 for (pri = NUMPRI; pri--; )
1958 count += pendingcnt [pri];
1959
1960 return count;
1961}
1962
1963void noinline
1964ev_invoke_pending (EV_P)
1417{ 1965{
1418 int pri; 1966 int pri;
1419 1967
1420 for (pri = NUMPRI; pri--; ) 1968 for (pri = NUMPRI; pri--; )
1421 while (pendingcnt [pri]) 1969 while (pendingcnt [pri])
1422 { 1970 {
1423 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 1971 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1424 1972
1425 if (expect_true (p->w))
1426 {
1427 /*assert (("non-pending watcher on pending list", p->w->pending));*/ 1973 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
1974 /* ^ this is no longer true, as pending_w could be here */
1428 1975
1429 p->w->pending = 0; 1976 p->w->pending = 0;
1430 EV_CB_INVOKE (p->w, p->events); 1977 EV_CB_INVOKE (p->w, p->events);
1431 } 1978 EV_FREQUENT_CHECK;
1432 } 1979 }
1433} 1980}
1434 1981
1435void inline_size
1436timers_reify (EV_P)
1437{
1438 while (timercnt && ((WT)timers [0])->at <= mn_now)
1439 {
1440 ev_timer *w = (ev_timer *)timers [0];
1441
1442 /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
1443
1444 /* first reschedule or stop timer */
1445 if (w->repeat)
1446 {
1447 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1448
1449 ((WT)w)->at += w->repeat;
1450 if (((WT)w)->at < mn_now)
1451 ((WT)w)->at = mn_now;
1452
1453 downheap (timers, timercnt, 0);
1454 }
1455 else
1456 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1457
1458 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
1459 }
1460}
1461
1462#if EV_PERIODIC_ENABLE
1463void inline_size
1464periodics_reify (EV_P)
1465{
1466 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1467 {
1468 ev_periodic *w = (ev_periodic *)periodics [0];
1469
1470 /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
1471
1472 /* first reschedule or stop timer */
1473 if (w->reschedule_cb)
1474 {
1475 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON);
1476 assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1477 downheap (periodics, periodiccnt, 0);
1478 }
1479 else if (w->interval)
1480 {
1481 ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1482 if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval;
1483 assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
1484 downheap (periodics, periodiccnt, 0);
1485 }
1486 else
1487 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1488
1489 ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
1490 }
1491}
1492
1493static void noinline
1494periodics_reschedule (EV_P)
1495{
1496 int i;
1497
1498 /* adjust periodics after time jump */
1499 for (i = 0; i < periodiccnt; ++i)
1500 {
1501 ev_periodic *w = (ev_periodic *)periodics [i];
1502
1503 if (w->reschedule_cb)
1504 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1505 else if (w->interval)
1506 ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1507 }
1508
1509 /* now rebuild the heap */
1510 for (i = periodiccnt >> 1; i--; )
1511 downheap (periodics, periodiccnt, i);
1512}
1513#endif
1514
1515#if EV_IDLE_ENABLE 1982#if EV_IDLE_ENABLE
1516void inline_size 1983/* make idle watchers pending. this handles the "call-idle */
1984/* only when higher priorities are idle" logic */
1985inline_size void
1517idle_reify (EV_P) 1986idle_reify (EV_P)
1518{ 1987{
1519 if (expect_false (idleall)) 1988 if (expect_false (idleall))
1520 { 1989 {
1521 int pri; 1990 int pri;
… …
1533 } 2002 }
1534 } 2003 }
1535} 2004}
1536#endif 2005#endif
1537 2006
1538void inline_speed 2007/* make timers pending */
2008inline_size void
2009timers_reify (EV_P)
2010{
2011 EV_FREQUENT_CHECK;
2012
2013 if (timercnt && ANHE_at (timers [HEAP0]) < mn_now)
2014 {
2015 do
2016 {
2017 ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]);
2018
2019 /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/
2020
2021 /* first reschedule or stop timer */
2022 if (w->repeat)
2023 {
2024 ev_at (w) += w->repeat;
2025 if (ev_at (w) < mn_now)
2026 ev_at (w) = mn_now;
2027
2028 assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.));
2029
2030 ANHE_at_cache (timers [HEAP0]);
2031 downheap (timers, timercnt, HEAP0);
2032 }
2033 else
2034 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
2035
2036 EV_FREQUENT_CHECK;
2037 feed_reverse (EV_A_ (W)w);
2038 }
2039 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
2040
2041 feed_reverse_done (EV_A_ EV_TIMEOUT);
2042 }
2043}
2044
2045#if EV_PERIODIC_ENABLE
2046/* make periodics pending */
2047inline_size void
2048periodics_reify (EV_P)
2049{
2050 EV_FREQUENT_CHECK;
2051
2052 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2053 {
2054 int feed_count = 0;
2055
2056 do
2057 {
2058 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2059
2060 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
2061
2062 /* first reschedule or stop timer */
2063 if (w->reschedule_cb)
2064 {
2065 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2066
2067 assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now));
2068
2069 ANHE_at_cache (periodics [HEAP0]);
2070 downheap (periodics, periodiccnt, HEAP0);
2071 }
2072 else if (w->interval)
2073 {
2074 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2075 /* if next trigger time is not sufficiently in the future, put it there */
2076 /* this might happen because of floating point inexactness */
2077 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
2078 {
2079 ev_at (w) += w->interval;
2080
2081 /* if interval is unreasonably low we might still have a time in the past */
2082 /* so correct this. this will make the periodic very inexact, but the user */
2083 /* has effectively asked to get triggered more often than possible */
2084 if (ev_at (w) < ev_rt_now)
2085 ev_at (w) = ev_rt_now;
2086 }
2087
2088 ANHE_at_cache (periodics [HEAP0]);
2089 downheap (periodics, periodiccnt, HEAP0);
2090 }
2091 else
2092 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
2093
2094 EV_FREQUENT_CHECK;
2095 feed_reverse (EV_A_ (W)w);
2096 }
2097 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now);
2098
2099 feed_reverse_done (EV_A_ EV_PERIODIC);
2100 }
2101}
2102
2103/* simply recalculate all periodics */
2104/* TODO: maybe ensure that at leats one event happens when jumping forward? */
2105static void noinline
2106periodics_reschedule (EV_P)
2107{
2108 int i;
2109
2110 /* adjust periodics after time jump */
2111 for (i = HEAP0; i < periodiccnt + HEAP0; ++i)
2112 {
2113 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
2114
2115 if (w->reschedule_cb)
2116 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2117 else if (w->interval)
2118 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2119
2120 ANHE_at_cache (periodics [i]);
2121 }
2122
2123 reheap (periodics, periodiccnt);
2124}
2125#endif
2126
2127/* adjust all timers by a given offset */
2128static void noinline
2129timers_reschedule (EV_P_ ev_tstamp adjust)
2130{
2131 int i;
2132
2133 for (i = 0; i < timercnt; ++i)
2134 {
2135 ANHE *he = timers + i + HEAP0;
2136 ANHE_w (*he)->at += adjust;
2137 ANHE_at_cache (*he);
2138 }
2139}
2140
2141/* fetch new monotonic and realtime times from the kernel */
2142/* also detetc if there was a timejump, and act accordingly */
2143inline_speed void
1539time_update (EV_P_ ev_tstamp max_block) 2144time_update (EV_P_ ev_tstamp max_block)
1540{ 2145{
1541 int i;
1542
1543#if EV_USE_MONOTONIC 2146#if EV_USE_MONOTONIC
1544 if (expect_true (have_monotonic)) 2147 if (expect_true (have_monotonic))
1545 { 2148 {
2149 int i;
1546 ev_tstamp odiff = rtmn_diff; 2150 ev_tstamp odiff = rtmn_diff;
1547 2151
1548 mn_now = get_clock (); 2152 mn_now = get_clock ();
1549 2153
1550 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ 2154 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
… …
1568 */ 2172 */
1569 for (i = 4; --i; ) 2173 for (i = 4; --i; )
1570 { 2174 {
1571 rtmn_diff = ev_rt_now - mn_now; 2175 rtmn_diff = ev_rt_now - mn_now;
1572 2176
1573 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) 2177 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP))
1574 return; /* all is well */ 2178 return; /* all is well */
1575 2179
1576 ev_rt_now = ev_time (); 2180 ev_rt_now = ev_time ();
1577 mn_now = get_clock (); 2181 mn_now = get_clock ();
1578 now_floor = mn_now; 2182 now_floor = mn_now;
1579 } 2183 }
1580 2184
2185 /* no timer adjustment, as the monotonic clock doesn't jump */
2186 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1581# if EV_PERIODIC_ENABLE 2187# if EV_PERIODIC_ENABLE
1582 periodics_reschedule (EV_A); 2188 periodics_reschedule (EV_A);
1583# endif 2189# endif
1584 /* no timer adjustment, as the monotonic clock doesn't jump */
1585 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1586 } 2190 }
1587 else 2191 else
1588#endif 2192#endif
1589 { 2193 {
1590 ev_rt_now = ev_time (); 2194 ev_rt_now = ev_time ();
1591 2195
1592 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) 2196 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
1593 { 2197 {
2198 /* adjust timers. this is easy, as the offset is the same for all of them */
2199 timers_reschedule (EV_A_ ev_rt_now - mn_now);
1594#if EV_PERIODIC_ENABLE 2200#if EV_PERIODIC_ENABLE
1595 periodics_reschedule (EV_A); 2201 periodics_reschedule (EV_A);
1596#endif 2202#endif
1597 /* adjust timers. this is easy, as the offset is the same for all of them */
1598 for (i = 0; i < timercnt; ++i)
1599 ((WT)timers [i])->at += ev_rt_now - mn_now;
1600 } 2203 }
1601 2204
1602 mn_now = ev_rt_now; 2205 mn_now = ev_rt_now;
1603 } 2206 }
1604} 2207}
1605 2208
1606void 2209void
1607ev_ref (EV_P)
1608{
1609 ++activecnt;
1610}
1611
1612void
1613ev_unref (EV_P)
1614{
1615 --activecnt;
1616}
1617
1618static int loop_done;
1619
1620void
1621ev_loop (EV_P_ int flags) 2210ev_loop (EV_P_ int flags)
1622{ 2211{
2212#if EV_MINIMAL < 2
2213 ++loop_depth;
2214#endif
2215
2216 assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE));
2217
1623 loop_done = EVUNLOOP_CANCEL; 2218 loop_done = EVUNLOOP_CANCEL;
1624 2219
1625 call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ 2220 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
1626 2221
1627 do 2222 do
1628 { 2223 {
2224#if EV_VERIFY >= 2
2225 ev_loop_verify (EV_A);
2226#endif
2227
1629#ifndef _WIN32 2228#ifndef _WIN32
1630 if (expect_false (curpid)) /* penalise the forking check even more */ 2229 if (expect_false (curpid)) /* penalise the forking check even more */
1631 if (expect_false (getpid () != curpid)) 2230 if (expect_false (getpid () != curpid))
1632 { 2231 {
1633 curpid = getpid (); 2232 curpid = getpid ();
… …
1639 /* we might have forked, so queue fork handlers */ 2238 /* we might have forked, so queue fork handlers */
1640 if (expect_false (postfork)) 2239 if (expect_false (postfork))
1641 if (forkcnt) 2240 if (forkcnt)
1642 { 2241 {
1643 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2242 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
1644 call_pending (EV_A); 2243 EV_INVOKE_PENDING;
1645 } 2244 }
1646#endif 2245#endif
1647 2246
1648 /* queue prepare watchers (and execute them) */ 2247 /* queue prepare watchers (and execute them) */
1649 if (expect_false (preparecnt)) 2248 if (expect_false (preparecnt))
1650 { 2249 {
1651 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 2250 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1652 call_pending (EV_A); 2251 EV_INVOKE_PENDING;
1653 } 2252 }
1654 2253
1655 if (expect_false (!activecnt)) 2254 if (expect_false (loop_done))
1656 break; 2255 break;
1657 2256
1658 /* we might have forked, so reify kernel state if necessary */ 2257 /* we might have forked, so reify kernel state if necessary */
1659 if (expect_false (postfork)) 2258 if (expect_false (postfork))
1660 loop_fork (EV_A); 2259 loop_fork (EV_A);
… …
1667 ev_tstamp waittime = 0.; 2266 ev_tstamp waittime = 0.;
1668 ev_tstamp sleeptime = 0.; 2267 ev_tstamp sleeptime = 0.;
1669 2268
1670 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 2269 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))
1671 { 2270 {
2271 /* remember old timestamp for io_blocktime calculation */
2272 ev_tstamp prev_mn_now = mn_now;
2273
1672 /* update time to cancel out callback processing overhead */ 2274 /* update time to cancel out callback processing overhead */
1673 time_update (EV_A_ 1e100); 2275 time_update (EV_A_ 1e100);
1674 2276
1675 waittime = MAX_BLOCKTIME; 2277 waittime = MAX_BLOCKTIME;
1676 2278
1677 if (timercnt) 2279 if (timercnt)
1678 { 2280 {
1679 ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; 2281 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge;
1680 if (waittime > to) waittime = to; 2282 if (waittime > to) waittime = to;
1681 } 2283 }
1682 2284
1683#if EV_PERIODIC_ENABLE 2285#if EV_PERIODIC_ENABLE
1684 if (periodiccnt) 2286 if (periodiccnt)
1685 { 2287 {
1686 ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; 2288 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge;
1687 if (waittime > to) waittime = to; 2289 if (waittime > to) waittime = to;
1688 } 2290 }
1689#endif 2291#endif
1690 2292
2293 /* don't let timeouts decrease the waittime below timeout_blocktime */
1691 if (expect_false (waittime < timeout_blocktime)) 2294 if (expect_false (waittime < timeout_blocktime))
1692 waittime = timeout_blocktime; 2295 waittime = timeout_blocktime;
1693 2296
1694 sleeptime = waittime - backend_fudge; 2297 /* extra check because io_blocktime is commonly 0 */
1695
1696 if (expect_true (sleeptime > io_blocktime)) 2298 if (expect_false (io_blocktime))
1697 sleeptime = io_blocktime;
1698
1699 if (sleeptime)
1700 { 2299 {
2300 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2301
2302 if (sleeptime > waittime - backend_fudge)
2303 sleeptime = waittime - backend_fudge;
2304
2305 if (expect_true (sleeptime > 0.))
2306 {
1701 ev_sleep (sleeptime); 2307 ev_sleep (sleeptime);
1702 waittime -= sleeptime; 2308 waittime -= sleeptime;
2309 }
1703 } 2310 }
1704 } 2311 }
1705 2312
2313#if EV_MINIMAL < 2
1706 ++loop_count; 2314 ++loop_count;
2315#endif
2316 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */
1707 backend_poll (EV_A_ waittime); 2317 backend_poll (EV_A_ waittime);
2318 assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */
1708 2319
1709 /* update ev_rt_now, do magic */ 2320 /* update ev_rt_now, do magic */
1710 time_update (EV_A_ waittime + sleeptime); 2321 time_update (EV_A_ waittime + sleeptime);
1711 } 2322 }
1712 2323
… …
1723 2334
1724 /* queue check watchers, to be executed first */ 2335 /* queue check watchers, to be executed first */
1725 if (expect_false (checkcnt)) 2336 if (expect_false (checkcnt))
1726 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 2337 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1727 2338
1728 call_pending (EV_A); 2339 EV_INVOKE_PENDING;
1729 } 2340 }
1730 while (expect_true ( 2341 while (expect_true (
1731 activecnt 2342 activecnt
1732 && !loop_done 2343 && !loop_done
1733 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 2344 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK))
1734 )); 2345 ));
1735 2346
1736 if (loop_done == EVUNLOOP_ONE) 2347 if (loop_done == EVUNLOOP_ONE)
1737 loop_done = EVUNLOOP_CANCEL; 2348 loop_done = EVUNLOOP_CANCEL;
2349
2350#if EV_MINIMAL < 2
2351 --loop_depth;
2352#endif
1738} 2353}
1739 2354
1740void 2355void
1741ev_unloop (EV_P_ int how) 2356ev_unloop (EV_P_ int how)
1742{ 2357{
1743 loop_done = how; 2358 loop_done = how;
1744} 2359}
1745 2360
2361void
2362ev_ref (EV_P)
2363{
2364 ++activecnt;
2365}
2366
2367void
2368ev_unref (EV_P)
2369{
2370 --activecnt;
2371}
2372
2373void
2374ev_now_update (EV_P)
2375{
2376 time_update (EV_A_ 1e100);
2377}
2378
2379void
2380ev_suspend (EV_P)
2381{
2382 ev_now_update (EV_A);
2383}
2384
2385void
2386ev_resume (EV_P)
2387{
2388 ev_tstamp mn_prev = mn_now;
2389
2390 ev_now_update (EV_A);
2391 timers_reschedule (EV_A_ mn_now - mn_prev);
2392#if EV_PERIODIC_ENABLE
2393 /* TODO: really do this? */
2394 periodics_reschedule (EV_A);
2395#endif
2396}
2397
1746/*****************************************************************************/ 2398/*****************************************************************************/
2399/* singly-linked list management, used when the expected list length is short */
1747 2400
1748void inline_size 2401inline_size void
1749wlist_add (WL *head, WL elem) 2402wlist_add (WL *head, WL elem)
1750{ 2403{
1751 elem->next = *head; 2404 elem->next = *head;
1752 *head = elem; 2405 *head = elem;
1753} 2406}
1754 2407
1755void inline_size 2408inline_size void
1756wlist_del (WL *head, WL elem) 2409wlist_del (WL *head, WL elem)
1757{ 2410{
1758 while (*head) 2411 while (*head)
1759 { 2412 {
1760 if (*head == elem) 2413 if (expect_true (*head == elem))
1761 { 2414 {
1762 *head = elem->next; 2415 *head = elem->next;
1763 return; 2416 break;
1764 } 2417 }
1765 2418
1766 head = &(*head)->next; 2419 head = &(*head)->next;
1767 } 2420 }
1768} 2421}
1769 2422
1770void inline_speed 2423/* internal, faster, version of ev_clear_pending */
2424inline_speed void
1771clear_pending (EV_P_ W w) 2425clear_pending (EV_P_ W w)
1772{ 2426{
1773 if (w->pending) 2427 if (w->pending)
1774 { 2428 {
1775 pendings [ABSPRI (w)][w->pending - 1].w = 0; 2429 pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w;
1776 w->pending = 0; 2430 w->pending = 0;
1777 } 2431 }
1778} 2432}
1779 2433
1780int 2434int
… …
1784 int pending = w_->pending; 2438 int pending = w_->pending;
1785 2439
1786 if (expect_true (pending)) 2440 if (expect_true (pending))
1787 { 2441 {
1788 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; 2442 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
2443 p->w = (W)&pending_w;
1789 w_->pending = 0; 2444 w_->pending = 0;
1790 p->w = 0;
1791 return p->events; 2445 return p->events;
1792 } 2446 }
1793 else 2447 else
1794 return 0; 2448 return 0;
1795} 2449}
1796 2450
1797void inline_size 2451inline_size void
1798pri_adjust (EV_P_ W w) 2452pri_adjust (EV_P_ W w)
1799{ 2453{
1800 int pri = w->priority; 2454 int pri = ev_priority (w);
1801 pri = pri < EV_MINPRI ? EV_MINPRI : pri; 2455 pri = pri < EV_MINPRI ? EV_MINPRI : pri;
1802 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; 2456 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
1803 w->priority = pri; 2457 ev_set_priority (w, pri);
1804} 2458}
1805 2459
1806void inline_speed 2460inline_speed void
1807ev_start (EV_P_ W w, int active) 2461ev_start (EV_P_ W w, int active)
1808{ 2462{
1809 pri_adjust (EV_A_ w); 2463 pri_adjust (EV_A_ w);
1810 w->active = active; 2464 w->active = active;
1811 ev_ref (EV_A); 2465 ev_ref (EV_A);
1812} 2466}
1813 2467
1814void inline_size 2468inline_size void
1815ev_stop (EV_P_ W w) 2469ev_stop (EV_P_ W w)
1816{ 2470{
1817 ev_unref (EV_A); 2471 ev_unref (EV_A);
1818 w->active = 0; 2472 w->active = 0;
1819} 2473}
… …
1826 int fd = w->fd; 2480 int fd = w->fd;
1827 2481
1828 if (expect_false (ev_is_active (w))) 2482 if (expect_false (ev_is_active (w)))
1829 return; 2483 return;
1830 2484
1831 assert (("ev_io_start called with negative fd", fd >= 0)); 2485 assert (("libev: ev_io_start called with negative fd", fd >= 0));
2486 assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2487
2488 EV_FREQUENT_CHECK;
1832 2489
1833 ev_start (EV_A_ (W)w, 1); 2490 ev_start (EV_A_ (W)w, 1);
1834 array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); 2491 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
1835 wlist_add (&anfds[fd].head, (WL)w); 2492 wlist_add (&anfds[fd].head, (WL)w);
1836 2493
1837 fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); 2494 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
1838 w->events &= ~EV_IOFDSET; 2495 w->events &= ~EV__IOFDSET;
2496
2497 EV_FREQUENT_CHECK;
1839} 2498}
1840 2499
1841void noinline 2500void noinline
1842ev_io_stop (EV_P_ ev_io *w) 2501ev_io_stop (EV_P_ ev_io *w)
1843{ 2502{
1844 clear_pending (EV_A_ (W)w); 2503 clear_pending (EV_A_ (W)w);
1845 if (expect_false (!ev_is_active (w))) 2504 if (expect_false (!ev_is_active (w)))
1846 return; 2505 return;
1847 2506
1848 assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); 2507 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
2508
2509 EV_FREQUENT_CHECK;
1849 2510
1850 wlist_del (&anfds[w->fd].head, (WL)w); 2511 wlist_del (&anfds[w->fd].head, (WL)w);
1851 ev_stop (EV_A_ (W)w); 2512 ev_stop (EV_A_ (W)w);
1852 2513
1853 fd_change (EV_A_ w->fd, 1); 2514 fd_change (EV_A_ w->fd, 1);
2515
2516 EV_FREQUENT_CHECK;
1854} 2517}
1855 2518
1856void noinline 2519void noinline
1857ev_timer_start (EV_P_ ev_timer *w) 2520ev_timer_start (EV_P_ ev_timer *w)
1858{ 2521{
1859 if (expect_false (ev_is_active (w))) 2522 if (expect_false (ev_is_active (w)))
1860 return; 2523 return;
1861 2524
1862 ((WT)w)->at += mn_now; 2525 ev_at (w) += mn_now;
1863 2526
1864 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 2527 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1865 2528
2529 EV_FREQUENT_CHECK;
2530
2531 ++timercnt;
1866 ev_start (EV_A_ (W)w, ++timercnt); 2532 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
1867 array_needsize (WT, timers, timermax, timercnt, EMPTY2); 2533 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2);
1868 timers [timercnt - 1] = (WT)w; 2534 ANHE_w (timers [ev_active (w)]) = (WT)w;
1869 upheap (timers, timercnt - 1); 2535 ANHE_at_cache (timers [ev_active (w)]);
2536 upheap (timers, ev_active (w));
1870 2537
2538 EV_FREQUENT_CHECK;
2539
1871 /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ 2540 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
1872} 2541}
1873 2542
1874void noinline 2543void noinline
1875ev_timer_stop (EV_P_ ev_timer *w) 2544ev_timer_stop (EV_P_ ev_timer *w)
1876{ 2545{
1877 clear_pending (EV_A_ (W)w); 2546 clear_pending (EV_A_ (W)w);
1878 if (expect_false (!ev_is_active (w))) 2547 if (expect_false (!ev_is_active (w)))
1879 return; 2548 return;
1880 2549
1881 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w)); 2550 EV_FREQUENT_CHECK;
1882 2551
1883 { 2552 {
1884 int active = ((W)w)->active; 2553 int active = ev_active (w);
1885 2554
2555 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
2556
2557 --timercnt;
2558
1886 if (expect_true (--active < --timercnt)) 2559 if (expect_true (active < timercnt + HEAP0))
1887 { 2560 {
1888 timers [active] = timers [timercnt]; 2561 timers [active] = timers [timercnt + HEAP0];
1889 adjustheap (timers, timercnt, active); 2562 adjustheap (timers, timercnt, active);
1890 } 2563 }
1891 } 2564 }
1892 2565
1893 ((WT)w)->at -= mn_now; 2566 EV_FREQUENT_CHECK;
2567
2568 ev_at (w) -= mn_now;
1894 2569
1895 ev_stop (EV_A_ (W)w); 2570 ev_stop (EV_A_ (W)w);
1896} 2571}
1897 2572
1898void noinline 2573void noinline
1899ev_timer_again (EV_P_ ev_timer *w) 2574ev_timer_again (EV_P_ ev_timer *w)
1900{ 2575{
2576 EV_FREQUENT_CHECK;
2577
1901 if (ev_is_active (w)) 2578 if (ev_is_active (w))
1902 { 2579 {
1903 if (w->repeat) 2580 if (w->repeat)
1904 { 2581 {
1905 ((WT)w)->at = mn_now + w->repeat; 2582 ev_at (w) = mn_now + w->repeat;
2583 ANHE_at_cache (timers [ev_active (w)]);
1906 adjustheap (timers, timercnt, ((W)w)->active - 1); 2584 adjustheap (timers, timercnt, ev_active (w));
1907 } 2585 }
1908 else 2586 else
1909 ev_timer_stop (EV_A_ w); 2587 ev_timer_stop (EV_A_ w);
1910 } 2588 }
1911 else if (w->repeat) 2589 else if (w->repeat)
1912 { 2590 {
1913 w->at = w->repeat; 2591 ev_at (w) = w->repeat;
1914 ev_timer_start (EV_A_ w); 2592 ev_timer_start (EV_A_ w);
1915 } 2593 }
2594
2595 EV_FREQUENT_CHECK;
2596}
2597
2598ev_tstamp
2599ev_timer_remaining (EV_P_ ev_timer *w)
2600{
2601 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
1916} 2602}
1917 2603
1918#if EV_PERIODIC_ENABLE 2604#if EV_PERIODIC_ENABLE
1919void noinline 2605void noinline
1920ev_periodic_start (EV_P_ ev_periodic *w) 2606ev_periodic_start (EV_P_ ev_periodic *w)
1921{ 2607{
1922 if (expect_false (ev_is_active (w))) 2608 if (expect_false (ev_is_active (w)))
1923 return; 2609 return;
1924 2610
1925 if (w->reschedule_cb) 2611 if (w->reschedule_cb)
1926 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); 2612 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1927 else if (w->interval) 2613 else if (w->interval)
1928 { 2614 {
1929 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); 2615 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
1930 /* this formula differs from the one in periodic_reify because we do not always round up */ 2616 /* this formula differs from the one in periodic_reify because we do not always round up */
1931 ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2617 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1932 } 2618 }
1933 else 2619 else
1934 ((WT)w)->at = w->offset; 2620 ev_at (w) = w->offset;
1935 2621
2622 EV_FREQUENT_CHECK;
2623
2624 ++periodiccnt;
1936 ev_start (EV_A_ (W)w, ++periodiccnt); 2625 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
1937 array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2); 2626 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2);
1938 periodics [periodiccnt - 1] = (WT)w; 2627 ANHE_w (periodics [ev_active (w)]) = (WT)w;
1939 upheap (periodics, periodiccnt - 1); 2628 ANHE_at_cache (periodics [ev_active (w)]);
2629 upheap (periodics, ev_active (w));
1940 2630
2631 EV_FREQUENT_CHECK;
2632
1941 /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ 2633 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
1942} 2634}
1943 2635
1944void noinline 2636void noinline
1945ev_periodic_stop (EV_P_ ev_periodic *w) 2637ev_periodic_stop (EV_P_ ev_periodic *w)
1946{ 2638{
1947 clear_pending (EV_A_ (W)w); 2639 clear_pending (EV_A_ (W)w);
1948 if (expect_false (!ev_is_active (w))) 2640 if (expect_false (!ev_is_active (w)))
1949 return; 2641 return;
1950 2642
1951 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w)); 2643 EV_FREQUENT_CHECK;
1952 2644
1953 { 2645 {
1954 int active = ((W)w)->active; 2646 int active = ev_active (w);
1955 2647
2648 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
2649
2650 --periodiccnt;
2651
1956 if (expect_true (--active < --periodiccnt)) 2652 if (expect_true (active < periodiccnt + HEAP0))
1957 { 2653 {
1958 periodics [active] = periodics [periodiccnt]; 2654 periodics [active] = periodics [periodiccnt + HEAP0];
1959 adjustheap (periodics, periodiccnt, active); 2655 adjustheap (periodics, periodiccnt, active);
1960 } 2656 }
1961 } 2657 }
1962 2658
2659 EV_FREQUENT_CHECK;
2660
1963 ev_stop (EV_A_ (W)w); 2661 ev_stop (EV_A_ (W)w);
1964} 2662}
1965 2663
1966void noinline 2664void noinline
1967ev_periodic_again (EV_P_ ev_periodic *w) 2665ev_periodic_again (EV_P_ ev_periodic *w)
… …
1977#endif 2675#endif
1978 2676
1979void noinline 2677void noinline
1980ev_signal_start (EV_P_ ev_signal *w) 2678ev_signal_start (EV_P_ ev_signal *w)
1981{ 2679{
1982#if EV_MULTIPLICITY
1983 assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1984#endif
1985 if (expect_false (ev_is_active (w))) 2680 if (expect_false (ev_is_active (w)))
1986 return; 2681 return;
1987 2682
1988 assert (("ev_signal_start called with illegal signal number", w->signum > 0)); 2683 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
1989 2684
1990 evpipe_init (EV_A); 2685#if EV_MULTIPLICITY
2686 assert (("libev: a signal must not be attached to two different loops",
2687 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
1991 2688
2689 signals [w->signum - 1].loop = EV_A;
2690#endif
2691
2692 EV_FREQUENT_CHECK;
2693
2694#if EV_USE_SIGNALFD
2695 if (sigfd == -2)
1992 { 2696 {
1993#ifndef _WIN32 2697 sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC);
1994 sigset_t full, prev; 2698 if (sigfd < 0 && errno == EINVAL)
1995 sigfillset (&full); 2699 sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */
1996 sigprocmask (SIG_SETMASK, &full, &prev);
1997#endif
1998 2700
1999 array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); 2701 if (sigfd >= 0)
2702 {
2703 fd_intern (sigfd); /* doing it twice will not hurt */
2000 2704
2001#ifndef _WIN32 2705 sigemptyset (&sigfd_set);
2002 sigprocmask (SIG_SETMASK, &prev, 0); 2706
2003#endif 2707 ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ);
2708 ev_set_priority (&sigfd_w, EV_MAXPRI);
2709 ev_io_start (EV_A_ &sigfd_w);
2710 ev_unref (EV_A); /* signalfd watcher should not keep loop alive */
2711 }
2004 } 2712 }
2713
2714 if (sigfd >= 0)
2715 {
2716 /* TODO: check .head */
2717 sigaddset (&sigfd_set, w->signum);
2718 sigprocmask (SIG_BLOCK, &sigfd_set, 0);
2719
2720 signalfd (sigfd, &sigfd_set, 0);
2721 }
2722#endif
2005 2723
2006 ev_start (EV_A_ (W)w, 1); 2724 ev_start (EV_A_ (W)w, 1);
2007 wlist_add (&signals [w->signum - 1].head, (WL)w); 2725 wlist_add (&signals [w->signum - 1].head, (WL)w);
2008 2726
2009 if (!((WL)w)->next) 2727 if (!((WL)w)->next)
2728# if EV_USE_SIGNALFD
2729 if (sigfd < 0) /*TODO*/
2730# endif
2010 { 2731 {
2011#if _WIN32 2732# if _WIN32
2012 signal (w->signum, ev_sighandler); 2733 signal (w->signum, ev_sighandler);
2013#else 2734# else
2014 struct sigaction sa; 2735 struct sigaction sa;
2736
2737 evpipe_init (EV_A);
2738
2015 sa.sa_handler = ev_sighandler; 2739 sa.sa_handler = ev_sighandler;
2016 sigfillset (&sa.sa_mask); 2740 sigfillset (&sa.sa_mask);
2017 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 2741 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2018 sigaction (w->signum, &sa, 0); 2742 sigaction (w->signum, &sa, 0);
2743
2744 sigemptyset (&sa.sa_mask);
2745 sigaddset (&sa.sa_mask, w->signum);
2746 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
2019#endif 2747#endif
2020 } 2748 }
2749
2750 EV_FREQUENT_CHECK;
2021} 2751}
2022 2752
2023void noinline 2753void noinline
2024ev_signal_stop (EV_P_ ev_signal *w) 2754ev_signal_stop (EV_P_ ev_signal *w)
2025{ 2755{
2026 clear_pending (EV_A_ (W)w); 2756 clear_pending (EV_A_ (W)w);
2027 if (expect_false (!ev_is_active (w))) 2757 if (expect_false (!ev_is_active (w)))
2028 return; 2758 return;
2029 2759
2760 EV_FREQUENT_CHECK;
2761
2030 wlist_del (&signals [w->signum - 1].head, (WL)w); 2762 wlist_del (&signals [w->signum - 1].head, (WL)w);
2031 ev_stop (EV_A_ (W)w); 2763 ev_stop (EV_A_ (W)w);
2032 2764
2033 if (!signals [w->signum - 1].head) 2765 if (!signals [w->signum - 1].head)
2766 {
2767#if EV_MULTIPLICITY
2768 signals [w->signum - 1].loop = 0; /* unattach from signal */
2769#endif
2770#if EV_USE_SIGNALFD
2771 if (sigfd >= 0)
2772 {
2773 sigprocmask (SIG_UNBLOCK, &sigfd_set, 0);//D
2774 sigdelset (&sigfd_set, w->signum);
2775 signalfd (sigfd, &sigfd_set, 0);
2776 sigprocmask (SIG_BLOCK, &sigfd_set, 0);//D
2777 /*TODO: maybe unblock signal? */
2778 }
2779 else
2780#endif
2034 signal (w->signum, SIG_DFL); 2781 signal (w->signum, SIG_DFL);
2782 }
2783
2784 EV_FREQUENT_CHECK;
2035} 2785}
2036 2786
2037void 2787void
2038ev_child_start (EV_P_ ev_child *w) 2788ev_child_start (EV_P_ ev_child *w)
2039{ 2789{
2040#if EV_MULTIPLICITY 2790#if EV_MULTIPLICITY
2041 assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 2791 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2042#endif 2792#endif
2043 if (expect_false (ev_is_active (w))) 2793 if (expect_false (ev_is_active (w)))
2044 return; 2794 return;
2045 2795
2796 EV_FREQUENT_CHECK;
2797
2046 ev_start (EV_A_ (W)w, 1); 2798 ev_start (EV_A_ (W)w, 1);
2047 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 2799 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
2800
2801 EV_FREQUENT_CHECK;
2048} 2802}
2049 2803
2050void 2804void
2051ev_child_stop (EV_P_ ev_child *w) 2805ev_child_stop (EV_P_ ev_child *w)
2052{ 2806{
2053 clear_pending (EV_A_ (W)w); 2807 clear_pending (EV_A_ (W)w);
2054 if (expect_false (!ev_is_active (w))) 2808 if (expect_false (!ev_is_active (w)))
2055 return; 2809 return;
2056 2810
2811 EV_FREQUENT_CHECK;
2812
2057 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 2813 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
2058 ev_stop (EV_A_ (W)w); 2814 ev_stop (EV_A_ (W)w);
2815
2816 EV_FREQUENT_CHECK;
2059} 2817}
2060 2818
2061#if EV_STAT_ENABLE 2819#if EV_STAT_ENABLE
2062 2820
2063# ifdef _WIN32 2821# ifdef _WIN32
2064# undef lstat 2822# undef lstat
2065# define lstat(a,b) _stati64 (a,b) 2823# define lstat(a,b) _stati64 (a,b)
2066# endif 2824# endif
2067 2825
2068#define DEF_STAT_INTERVAL 5.0074891 2826#define DEF_STAT_INTERVAL 5.0074891
2827#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
2069#define MIN_STAT_INTERVAL 0.1074891 2828#define MIN_STAT_INTERVAL 0.1074891
2070 2829
2071static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 2830static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2072 2831
2073#if EV_USE_INOTIFY 2832#if EV_USE_INOTIFY
2074# define EV_INOTIFY_BUFSIZE 8192 2833# define EV_INOTIFY_BUFSIZE 8192
… …
2078{ 2837{
2079 w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); 2838 w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD);
2080 2839
2081 if (w->wd < 0) 2840 if (w->wd < 0)
2082 { 2841 {
2842 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2083 ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ 2843 ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2084 2844
2085 /* monitor some parent directory for speedup hints */ 2845 /* monitor some parent directory for speedup hints */
2846 /* note that exceeding the hardcoded path limit is not a correctness issue, */
2847 /* but an efficiency issue only */
2086 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) 2848 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2087 { 2849 {
2088 char path [4096]; 2850 char path [4096];
2089 strcpy (path, w->path); 2851 strcpy (path, w->path);
2090 2852
… …
2093 int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF 2855 int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF
2094 | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); 2856 | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);
2095 2857
2096 char *pend = strrchr (path, '/'); 2858 char *pend = strrchr (path, '/');
2097 2859
2098 if (!pend) 2860 if (!pend || pend == path)
2099 break; /* whoops, no '/', complain to your admin */ 2861 break;
2100 2862
2101 *pend = 0; 2863 *pend = 0;
2102 w->wd = inotify_add_watch (fs_fd, path, mask); 2864 w->wd = inotify_add_watch (fs_fd, path, mask);
2103 } 2865 }
2104 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 2866 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2105 } 2867 }
2106 } 2868 }
2107 else
2108 ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */
2109 2869
2110 if (w->wd >= 0) 2870 if (w->wd >= 0)
2871 {
2872 struct statfs sfs;
2873
2111 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 2874 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
2875
2876 /* now local changes will be tracked by inotify, but remote changes won't */
2877 /* unless the filesystem it known to be local, we therefore still poll */
2878 /* also do poll on <2.6.25, but with normal frequency */
2879
2880 if (fs_2625 && !statfs (w->path, &sfs))
2881 if (sfs.f_type == 0x1373 /* devfs */
2882 || sfs.f_type == 0xEF53 /* ext2/3 */
2883 || sfs.f_type == 0x3153464a /* jfs */
2884 || sfs.f_type == 0x52654973 /* reiser3 */
2885 || sfs.f_type == 0x01021994 /* tempfs */
2886 || sfs.f_type == 0x58465342 /* xfs */)
2887 return;
2888
2889 w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
2890 ev_timer_again (EV_A_ &w->timer);
2891 }
2112} 2892}
2113 2893
2114static void noinline 2894static void noinline
2115infy_del (EV_P_ ev_stat *w) 2895infy_del (EV_P_ ev_stat *w)
2116{ 2896{
… …
2130 2910
2131static void noinline 2911static void noinline
2132infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 2912infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2133{ 2913{
2134 if (slot < 0) 2914 if (slot < 0)
2135 /* overflow, need to check for all hahs slots */ 2915 /* overflow, need to check for all hash slots */
2136 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 2916 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
2137 infy_wd (EV_A_ slot, wd, ev); 2917 infy_wd (EV_A_ slot, wd, ev);
2138 else 2918 else
2139 { 2919 {
2140 WL w_; 2920 WL w_;
… …
2146 2926
2147 if (w->wd == wd || wd == -1) 2927 if (w->wd == wd || wd == -1)
2148 { 2928 {
2149 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 2929 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2150 { 2930 {
2931 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
2151 w->wd = -1; 2932 w->wd = -1;
2152 infy_add (EV_A_ w); /* re-add, no matter what */ 2933 infy_add (EV_A_ w); /* re-add, no matter what */
2153 } 2934 }
2154 2935
2155 stat_timer_cb (EV_A_ &w->timer, 0); 2936 stat_timer_cb (EV_A_ &w->timer, 0);
… …
2168 2949
2169 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) 2950 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)
2170 infy_wd (EV_A_ ev->wd, ev->wd, ev); 2951 infy_wd (EV_A_ ev->wd, ev->wd, ev);
2171} 2952}
2172 2953
2173void inline_size 2954inline_size void
2955check_2625 (EV_P)
2956{
2957 /* kernels < 2.6.25 are borked
2958 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2959 */
2960 struct utsname buf;
2961 int major, minor, micro;
2962
2963 if (uname (&buf))
2964 return;
2965
2966 if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
2967 return;
2968
2969 if (major < 2
2970 || (major == 2 && minor < 6)
2971 || (major == 2 && minor == 6 && micro < 25))
2972 return;
2973
2974 fs_2625 = 1;
2975}
2976
2977inline_size void
2174infy_init (EV_P) 2978infy_init (EV_P)
2175{ 2979{
2176 if (fs_fd != -2) 2980 if (fs_fd != -2)
2177 return; 2981 return;
2982
2983 fs_fd = -1;
2984
2985 check_2625 (EV_A);
2178 2986
2179 fs_fd = inotify_init (); 2987 fs_fd = inotify_init ();
2180 2988
2181 if (fs_fd >= 0) 2989 if (fs_fd >= 0)
2182 { 2990 {
… …
2184 ev_set_priority (&fs_w, EV_MAXPRI); 2992 ev_set_priority (&fs_w, EV_MAXPRI);
2185 ev_io_start (EV_A_ &fs_w); 2993 ev_io_start (EV_A_ &fs_w);
2186 } 2994 }
2187} 2995}
2188 2996
2189void inline_size 2997inline_size void
2190infy_fork (EV_P) 2998infy_fork (EV_P)
2191{ 2999{
2192 int slot; 3000 int slot;
2193 3001
2194 if (fs_fd < 0) 3002 if (fs_fd < 0)
… …
2210 w->wd = -1; 3018 w->wd = -1;
2211 3019
2212 if (fs_fd >= 0) 3020 if (fs_fd >= 0)
2213 infy_add (EV_A_ w); /* re-add, no matter what */ 3021 infy_add (EV_A_ w); /* re-add, no matter what */
2214 else 3022 else
2215 ev_timer_start (EV_A_ &w->timer); 3023 ev_timer_again (EV_A_ &w->timer);
2216 } 3024 }
2217
2218 } 3025 }
2219} 3026}
2220 3027
3028#endif
3029
3030#ifdef _WIN32
3031# define EV_LSTAT(p,b) _stati64 (p, b)
3032#else
3033# define EV_LSTAT(p,b) lstat (p, b)
2221#endif 3034#endif
2222 3035
2223void 3036void
2224ev_stat_stat (EV_P_ ev_stat *w) 3037ev_stat_stat (EV_P_ ev_stat *w)
2225{ 3038{
… …
2252 || w->prev.st_atime != w->attr.st_atime 3065 || w->prev.st_atime != w->attr.st_atime
2253 || w->prev.st_mtime != w->attr.st_mtime 3066 || w->prev.st_mtime != w->attr.st_mtime
2254 || w->prev.st_ctime != w->attr.st_ctime 3067 || w->prev.st_ctime != w->attr.st_ctime
2255 ) { 3068 ) {
2256 #if EV_USE_INOTIFY 3069 #if EV_USE_INOTIFY
3070 if (fs_fd >= 0)
3071 {
2257 infy_del (EV_A_ w); 3072 infy_del (EV_A_ w);
2258 infy_add (EV_A_ w); 3073 infy_add (EV_A_ w);
2259 ev_stat_stat (EV_A_ w); /* avoid race... */ 3074 ev_stat_stat (EV_A_ w); /* avoid race... */
3075 }
2260 #endif 3076 #endif
2261 3077
2262 ev_feed_event (EV_A_ w, EV_STAT); 3078 ev_feed_event (EV_A_ w, EV_STAT);
2263 } 3079 }
2264} 3080}
… …
2267ev_stat_start (EV_P_ ev_stat *w) 3083ev_stat_start (EV_P_ ev_stat *w)
2268{ 3084{
2269 if (expect_false (ev_is_active (w))) 3085 if (expect_false (ev_is_active (w)))
2270 return; 3086 return;
2271 3087
2272 /* since we use memcmp, we need to clear any padding data etc. */
2273 memset (&w->prev, 0, sizeof (ev_statdata));
2274 memset (&w->attr, 0, sizeof (ev_statdata));
2275
2276 ev_stat_stat (EV_A_ w); 3088 ev_stat_stat (EV_A_ w);
2277 3089
3090 if (w->interval < MIN_STAT_INTERVAL && w->interval)
2278 if (w->interval < MIN_STAT_INTERVAL) 3091 w->interval = MIN_STAT_INTERVAL;
2279 w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
2280 3092
2281 ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); 3093 ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL);
2282 ev_set_priority (&w->timer, ev_priority (w)); 3094 ev_set_priority (&w->timer, ev_priority (w));
2283 3095
2284#if EV_USE_INOTIFY 3096#if EV_USE_INOTIFY
2285 infy_init (EV_A); 3097 infy_init (EV_A);
2286 3098
2287 if (fs_fd >= 0) 3099 if (fs_fd >= 0)
2288 infy_add (EV_A_ w); 3100 infy_add (EV_A_ w);
2289 else 3101 else
2290#endif 3102#endif
2291 ev_timer_start (EV_A_ &w->timer); 3103 ev_timer_again (EV_A_ &w->timer);
2292 3104
2293 ev_start (EV_A_ (W)w, 1); 3105 ev_start (EV_A_ (W)w, 1);
3106
3107 EV_FREQUENT_CHECK;
2294} 3108}
2295 3109
2296void 3110void
2297ev_stat_stop (EV_P_ ev_stat *w) 3111ev_stat_stop (EV_P_ ev_stat *w)
2298{ 3112{
2299 clear_pending (EV_A_ (W)w); 3113 clear_pending (EV_A_ (W)w);
2300 if (expect_false (!ev_is_active (w))) 3114 if (expect_false (!ev_is_active (w)))
2301 return; 3115 return;
2302 3116
3117 EV_FREQUENT_CHECK;
3118
2303#if EV_USE_INOTIFY 3119#if EV_USE_INOTIFY
2304 infy_del (EV_A_ w); 3120 infy_del (EV_A_ w);
2305#endif 3121#endif
2306 ev_timer_stop (EV_A_ &w->timer); 3122 ev_timer_stop (EV_A_ &w->timer);
2307 3123
2308 ev_stop (EV_A_ (W)w); 3124 ev_stop (EV_A_ (W)w);
3125
3126 EV_FREQUENT_CHECK;
2309} 3127}
2310#endif 3128#endif
2311 3129
2312#if EV_IDLE_ENABLE 3130#if EV_IDLE_ENABLE
2313void 3131void
… …
2315{ 3133{
2316 if (expect_false (ev_is_active (w))) 3134 if (expect_false (ev_is_active (w)))
2317 return; 3135 return;
2318 3136
2319 pri_adjust (EV_A_ (W)w); 3137 pri_adjust (EV_A_ (W)w);
3138
3139 EV_FREQUENT_CHECK;
2320 3140
2321 { 3141 {
2322 int active = ++idlecnt [ABSPRI (w)]; 3142 int active = ++idlecnt [ABSPRI (w)];
2323 3143
2324 ++idleall; 3144 ++idleall;
2325 ev_start (EV_A_ (W)w, active); 3145 ev_start (EV_A_ (W)w, active);
2326 3146
2327 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); 3147 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);
2328 idles [ABSPRI (w)][active - 1] = w; 3148 idles [ABSPRI (w)][active - 1] = w;
2329 } 3149 }
3150
3151 EV_FREQUENT_CHECK;
2330} 3152}
2331 3153
2332void 3154void
2333ev_idle_stop (EV_P_ ev_idle *w) 3155ev_idle_stop (EV_P_ ev_idle *w)
2334{ 3156{
2335 clear_pending (EV_A_ (W)w); 3157 clear_pending (EV_A_ (W)w);
2336 if (expect_false (!ev_is_active (w))) 3158 if (expect_false (!ev_is_active (w)))
2337 return; 3159 return;
2338 3160
3161 EV_FREQUENT_CHECK;
3162
2339 { 3163 {
2340 int active = ((W)w)->active; 3164 int active = ev_active (w);
2341 3165
2342 idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; 3166 idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
2343 ((W)idles [ABSPRI (w)][active - 1])->active = active; 3167 ev_active (idles [ABSPRI (w)][active - 1]) = active;
2344 3168
2345 ev_stop (EV_A_ (W)w); 3169 ev_stop (EV_A_ (W)w);
2346 --idleall; 3170 --idleall;
2347 } 3171 }
3172
3173 EV_FREQUENT_CHECK;
2348} 3174}
2349#endif 3175#endif
2350 3176
2351void 3177void
2352ev_prepare_start (EV_P_ ev_prepare *w) 3178ev_prepare_start (EV_P_ ev_prepare *w)
2353{ 3179{
2354 if (expect_false (ev_is_active (w))) 3180 if (expect_false (ev_is_active (w)))
2355 return; 3181 return;
3182
3183 EV_FREQUENT_CHECK;
2356 3184
2357 ev_start (EV_A_ (W)w, ++preparecnt); 3185 ev_start (EV_A_ (W)w, ++preparecnt);
2358 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); 3186 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
2359 prepares [preparecnt - 1] = w; 3187 prepares [preparecnt - 1] = w;
3188
3189 EV_FREQUENT_CHECK;
2360} 3190}
2361 3191
2362void 3192void
2363ev_prepare_stop (EV_P_ ev_prepare *w) 3193ev_prepare_stop (EV_P_ ev_prepare *w)
2364{ 3194{
2365 clear_pending (EV_A_ (W)w); 3195 clear_pending (EV_A_ (W)w);
2366 if (expect_false (!ev_is_active (w))) 3196 if (expect_false (!ev_is_active (w)))
2367 return; 3197 return;
2368 3198
3199 EV_FREQUENT_CHECK;
3200
2369 { 3201 {
2370 int active = ((W)w)->active; 3202 int active = ev_active (w);
3203
2371 prepares [active - 1] = prepares [--preparecnt]; 3204 prepares [active - 1] = prepares [--preparecnt];
2372 ((W)prepares [active - 1])->active = active; 3205 ev_active (prepares [active - 1]) = active;
2373 } 3206 }
2374 3207
2375 ev_stop (EV_A_ (W)w); 3208 ev_stop (EV_A_ (W)w);
3209
3210 EV_FREQUENT_CHECK;
2376} 3211}
2377 3212
2378void 3213void
2379ev_check_start (EV_P_ ev_check *w) 3214ev_check_start (EV_P_ ev_check *w)
2380{ 3215{
2381 if (expect_false (ev_is_active (w))) 3216 if (expect_false (ev_is_active (w)))
2382 return; 3217 return;
3218
3219 EV_FREQUENT_CHECK;
2383 3220
2384 ev_start (EV_A_ (W)w, ++checkcnt); 3221 ev_start (EV_A_ (W)w, ++checkcnt);
2385 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); 3222 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
2386 checks [checkcnt - 1] = w; 3223 checks [checkcnt - 1] = w;
3224
3225 EV_FREQUENT_CHECK;
2387} 3226}
2388 3227
2389void 3228void
2390ev_check_stop (EV_P_ ev_check *w) 3229ev_check_stop (EV_P_ ev_check *w)
2391{ 3230{
2392 clear_pending (EV_A_ (W)w); 3231 clear_pending (EV_A_ (W)w);
2393 if (expect_false (!ev_is_active (w))) 3232 if (expect_false (!ev_is_active (w)))
2394 return; 3233 return;
2395 3234
3235 EV_FREQUENT_CHECK;
3236
2396 { 3237 {
2397 int active = ((W)w)->active; 3238 int active = ev_active (w);
3239
2398 checks [active - 1] = checks [--checkcnt]; 3240 checks [active - 1] = checks [--checkcnt];
2399 ((W)checks [active - 1])->active = active; 3241 ev_active (checks [active - 1]) = active;
2400 } 3242 }
2401 3243
2402 ev_stop (EV_A_ (W)w); 3244 ev_stop (EV_A_ (W)w);
3245
3246 EV_FREQUENT_CHECK;
2403} 3247}
2404 3248
2405#if EV_EMBED_ENABLE 3249#if EV_EMBED_ENABLE
2406void noinline 3250void noinline
2407ev_embed_sweep (EV_P_ ev_embed *w) 3251ev_embed_sweep (EV_P_ ev_embed *w)
… …
2424embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 3268embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
2425{ 3269{
2426 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); 3270 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
2427 3271
2428 { 3272 {
2429 struct ev_loop *loop = w->other; 3273 EV_P = w->other;
2430 3274
2431 while (fdchangecnt) 3275 while (fdchangecnt)
2432 { 3276 {
2433 fd_reify (EV_A); 3277 fd_reify (EV_A);
2434 ev_loop (EV_A_ EVLOOP_NONBLOCK); 3278 ev_loop (EV_A_ EVLOOP_NONBLOCK);
2435 } 3279 }
2436 } 3280 }
2437} 3281}
2438 3282
3283static void
3284embed_fork_cb (EV_P_ ev_fork *fork_w, int revents)
3285{
3286 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
3287
3288 ev_embed_stop (EV_A_ w);
3289
3290 {
3291 EV_P = w->other;
3292
3293 ev_loop_fork (EV_A);
3294 ev_loop (EV_A_ EVLOOP_NONBLOCK);
3295 }
3296
3297 ev_embed_start (EV_A_ w);
3298}
3299
2439#if 0 3300#if 0
2440static void 3301static void
2441embed_idle_cb (EV_P_ ev_idle *idle, int revents) 3302embed_idle_cb (EV_P_ ev_idle *idle, int revents)
2442{ 3303{
2443 ev_idle_stop (EV_A_ idle); 3304 ev_idle_stop (EV_A_ idle);
… …
2449{ 3310{
2450 if (expect_false (ev_is_active (w))) 3311 if (expect_false (ev_is_active (w)))
2451 return; 3312 return;
2452 3313
2453 { 3314 {
2454 struct ev_loop *loop = w->other; 3315 EV_P = w->other;
2455 assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 3316 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2456 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); 3317 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2457 } 3318 }
3319
3320 EV_FREQUENT_CHECK;
2458 3321
2459 ev_set_priority (&w->io, ev_priority (w)); 3322 ev_set_priority (&w->io, ev_priority (w));
2460 ev_io_start (EV_A_ &w->io); 3323 ev_io_start (EV_A_ &w->io);
2461 3324
2462 ev_prepare_init (&w->prepare, embed_prepare_cb); 3325 ev_prepare_init (&w->prepare, embed_prepare_cb);
2463 ev_set_priority (&w->prepare, EV_MINPRI); 3326 ev_set_priority (&w->prepare, EV_MINPRI);
2464 ev_prepare_start (EV_A_ &w->prepare); 3327 ev_prepare_start (EV_A_ &w->prepare);
2465 3328
3329 ev_fork_init (&w->fork, embed_fork_cb);
3330 ev_fork_start (EV_A_ &w->fork);
3331
2466 /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ 3332 /*ev_idle_init (&w->idle, e,bed_idle_cb);*/
2467 3333
2468 ev_start (EV_A_ (W)w, 1); 3334 ev_start (EV_A_ (W)w, 1);
3335
3336 EV_FREQUENT_CHECK;
2469} 3337}
2470 3338
2471void 3339void
2472ev_embed_stop (EV_P_ ev_embed *w) 3340ev_embed_stop (EV_P_ ev_embed *w)
2473{ 3341{
2474 clear_pending (EV_A_ (W)w); 3342 clear_pending (EV_A_ (W)w);
2475 if (expect_false (!ev_is_active (w))) 3343 if (expect_false (!ev_is_active (w)))
2476 return; 3344 return;
2477 3345
3346 EV_FREQUENT_CHECK;
3347
2478 ev_io_stop (EV_A_ &w->io); 3348 ev_io_stop (EV_A_ &w->io);
2479 ev_prepare_stop (EV_A_ &w->prepare); 3349 ev_prepare_stop (EV_A_ &w->prepare);
3350 ev_fork_stop (EV_A_ &w->fork);
2480 3351
2481 ev_stop (EV_A_ (W)w); 3352 EV_FREQUENT_CHECK;
2482} 3353}
2483#endif 3354#endif
2484 3355
2485#if EV_FORK_ENABLE 3356#if EV_FORK_ENABLE
2486void 3357void
2487ev_fork_start (EV_P_ ev_fork *w) 3358ev_fork_start (EV_P_ ev_fork *w)
2488{ 3359{
2489 if (expect_false (ev_is_active (w))) 3360 if (expect_false (ev_is_active (w)))
2490 return; 3361 return;
3362
3363 EV_FREQUENT_CHECK;
2491 3364
2492 ev_start (EV_A_ (W)w, ++forkcnt); 3365 ev_start (EV_A_ (W)w, ++forkcnt);
2493 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); 3366 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);
2494 forks [forkcnt - 1] = w; 3367 forks [forkcnt - 1] = w;
3368
3369 EV_FREQUENT_CHECK;
2495} 3370}
2496 3371
2497void 3372void
2498ev_fork_stop (EV_P_ ev_fork *w) 3373ev_fork_stop (EV_P_ ev_fork *w)
2499{ 3374{
2500 clear_pending (EV_A_ (W)w); 3375 clear_pending (EV_A_ (W)w);
2501 if (expect_false (!ev_is_active (w))) 3376 if (expect_false (!ev_is_active (w)))
2502 return; 3377 return;
2503 3378
3379 EV_FREQUENT_CHECK;
3380
2504 { 3381 {
2505 int active = ((W)w)->active; 3382 int active = ev_active (w);
3383
2506 forks [active - 1] = forks [--forkcnt]; 3384 forks [active - 1] = forks [--forkcnt];
2507 ((W)forks [active - 1])->active = active; 3385 ev_active (forks [active - 1]) = active;
2508 } 3386 }
2509 3387
2510 ev_stop (EV_A_ (W)w); 3388 ev_stop (EV_A_ (W)w);
3389
3390 EV_FREQUENT_CHECK;
2511} 3391}
2512#endif 3392#endif
2513 3393
2514#if EV_ASYNC_ENABLE 3394#if EV_ASYNC_ENABLE
2515void 3395void
… …
2517{ 3397{
2518 if (expect_false (ev_is_active (w))) 3398 if (expect_false (ev_is_active (w)))
2519 return; 3399 return;
2520 3400
2521 evpipe_init (EV_A); 3401 evpipe_init (EV_A);
3402
3403 EV_FREQUENT_CHECK;
2522 3404
2523 ev_start (EV_A_ (W)w, ++asynccnt); 3405 ev_start (EV_A_ (W)w, ++asynccnt);
2524 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); 3406 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2);
2525 asyncs [asynccnt - 1] = w; 3407 asyncs [asynccnt - 1] = w;
3408
3409 EV_FREQUENT_CHECK;
2526} 3410}
2527 3411
2528void 3412void
2529ev_async_stop (EV_P_ ev_async *w) 3413ev_async_stop (EV_P_ ev_async *w)
2530{ 3414{
2531 clear_pending (EV_A_ (W)w); 3415 clear_pending (EV_A_ (W)w);
2532 if (expect_false (!ev_is_active (w))) 3416 if (expect_false (!ev_is_active (w)))
2533 return; 3417 return;
2534 3418
3419 EV_FREQUENT_CHECK;
3420
2535 { 3421 {
2536 int active = ((W)w)->active; 3422 int active = ev_active (w);
3423
2537 asyncs [active - 1] = asyncs [--asynccnt]; 3424 asyncs [active - 1] = asyncs [--asynccnt];
2538 ((W)asyncs [active - 1])->active = active; 3425 ev_active (asyncs [active - 1]) = active;
2539 } 3426 }
2540 3427
2541 ev_stop (EV_A_ (W)w); 3428 ev_stop (EV_A_ (W)w);
3429
3430 EV_FREQUENT_CHECK;
2542} 3431}
2543 3432
2544void 3433void
2545ev_async_send (EV_P_ ev_async *w) 3434ev_async_send (EV_P_ ev_async *w)
2546{ 3435{
2547 w->sent = 1; 3436 w->sent = 1;
2548 evpipe_write (EV_A_ &gotasync); 3437 evpipe_write (EV_A_ &async_pending);
2549} 3438}
2550#endif 3439#endif
2551 3440
2552/*****************************************************************************/ 3441/*****************************************************************************/
2553 3442
… …
2563once_cb (EV_P_ struct ev_once *once, int revents) 3452once_cb (EV_P_ struct ev_once *once, int revents)
2564{ 3453{
2565 void (*cb)(int revents, void *arg) = once->cb; 3454 void (*cb)(int revents, void *arg) = once->cb;
2566 void *arg = once->arg; 3455 void *arg = once->arg;
2567 3456
2568 ev_io_stop (EV_A_ &once->io); 3457 ev_io_stop (EV_A_ &once->io);
2569 ev_timer_stop (EV_A_ &once->to); 3458 ev_timer_stop (EV_A_ &once->to);
2570 ev_free (once); 3459 ev_free (once);
2571 3460
2572 cb (revents, arg); 3461 cb (revents, arg);
2573} 3462}
2574 3463
2575static void 3464static void
2576once_cb_io (EV_P_ ev_io *w, int revents) 3465once_cb_io (EV_P_ ev_io *w, int revents)
2577{ 3466{
2578 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); 3467 struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io));
3468
3469 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to));
2579} 3470}
2580 3471
2581static void 3472static void
2582once_cb_to (EV_P_ ev_timer *w, int revents) 3473once_cb_to (EV_P_ ev_timer *w, int revents)
2583{ 3474{
2584 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); 3475 struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to));
3476
3477 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
2585} 3478}
2586 3479
2587void 3480void
2588ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 3481ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)
2589{ 3482{
… …
2611 ev_timer_set (&once->to, timeout, 0.); 3504 ev_timer_set (&once->to, timeout, 0.);
2612 ev_timer_start (EV_A_ &once->to); 3505 ev_timer_start (EV_A_ &once->to);
2613 } 3506 }
2614} 3507}
2615 3508
3509/*****************************************************************************/
3510
3511#if EV_WALK_ENABLE
3512void
3513ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))
3514{
3515 int i, j;
3516 ev_watcher_list *wl, *wn;
3517
3518 if (types & (EV_IO | EV_EMBED))
3519 for (i = 0; i < anfdmax; ++i)
3520 for (wl = anfds [i].head; wl; )
3521 {
3522 wn = wl->next;
3523
3524#if EV_EMBED_ENABLE
3525 if (ev_cb ((ev_io *)wl) == embed_io_cb)
3526 {
3527 if (types & EV_EMBED)
3528 cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io));
3529 }
3530 else
3531#endif
3532#if EV_USE_INOTIFY
3533 if (ev_cb ((ev_io *)wl) == infy_cb)
3534 ;
3535 else
3536#endif
3537 if ((ev_io *)wl != &pipe_w)
3538 if (types & EV_IO)
3539 cb (EV_A_ EV_IO, wl);
3540
3541 wl = wn;
3542 }
3543
3544 if (types & (EV_TIMER | EV_STAT))
3545 for (i = timercnt + HEAP0; i-- > HEAP0; )
3546#if EV_STAT_ENABLE
3547 /*TODO: timer is not always active*/
3548 if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb)
3549 {
3550 if (types & EV_STAT)
3551 cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer));
3552 }
3553 else
3554#endif
3555 if (types & EV_TIMER)
3556 cb (EV_A_ EV_TIMER, ANHE_w (timers [i]));
3557
3558#if EV_PERIODIC_ENABLE
3559 if (types & EV_PERIODIC)
3560 for (i = periodiccnt + HEAP0; i-- > HEAP0; )
3561 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3562#endif
3563
3564#if EV_IDLE_ENABLE
3565 if (types & EV_IDLE)
3566 for (j = NUMPRI; i--; )
3567 for (i = idlecnt [j]; i--; )
3568 cb (EV_A_ EV_IDLE, idles [j][i]);
3569#endif
3570
3571#if EV_FORK_ENABLE
3572 if (types & EV_FORK)
3573 for (i = forkcnt; i--; )
3574 if (ev_cb (forks [i]) != embed_fork_cb)
3575 cb (EV_A_ EV_FORK, forks [i]);
3576#endif
3577
3578#if EV_ASYNC_ENABLE
3579 if (types & EV_ASYNC)
3580 for (i = asynccnt; i--; )
3581 cb (EV_A_ EV_ASYNC, asyncs [i]);
3582#endif
3583
3584 if (types & EV_PREPARE)
3585 for (i = preparecnt; i--; )
3586#if EV_EMBED_ENABLE
3587 if (ev_cb (prepares [i]) != embed_prepare_cb)
3588#endif
3589 cb (EV_A_ EV_PREPARE, prepares [i]);
3590
3591 if (types & EV_CHECK)
3592 for (i = checkcnt; i--; )
3593 cb (EV_A_ EV_CHECK, checks [i]);
3594
3595 if (types & EV_SIGNAL)
3596 for (i = 0; i < EV_NSIG - 1; ++i)
3597 for (wl = signals [i].head; wl; )
3598 {
3599 wn = wl->next;
3600 cb (EV_A_ EV_SIGNAL, wl);
3601 wl = wn;
3602 }
3603
3604 if (types & EV_CHILD)
3605 for (i = EV_PID_HASHSIZE; i--; )
3606 for (wl = childs [i]; wl; )
3607 {
3608 wn = wl->next;
3609 cb (EV_A_ EV_CHILD, wl);
3610 wl = wn;
3611 }
3612/* EV_STAT 0x00001000 /* stat data changed */
3613/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3614}
3615#endif
3616
2616#if EV_MULTIPLICITY 3617#if EV_MULTIPLICITY
2617 #include "ev_wrap.h" 3618 #include "ev_wrap.h"
2618#endif 3619#endif
2619 3620
2620#ifdef __cplusplus 3621#ifdef __cplusplus

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