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Comparing libev/ev.c (file contents):
Revision 1.129 by root, Fri Nov 23 05:00:44 2007 UTC vs.
Revision 1.156 by root, Wed Nov 28 17:50:13 2007 UTC

32#ifdef __cplusplus 32#ifdef __cplusplus
33extern "C" { 33extern "C" {
34#endif 34#endif
35 35
36#ifndef EV_STANDALONE 36#ifndef EV_STANDALONE
37# ifdef EV_CONFIG_H
38# include EV_CONFIG_H
39# else
37# include "config.h" 40# include "config.h"
41# endif
38 42
39# if HAVE_CLOCK_GETTIME 43# if HAVE_CLOCK_GETTIME
40# ifndef EV_USE_MONOTONIC 44# ifndef EV_USE_MONOTONIC
41# define EV_USE_MONOTONIC 1 45# define EV_USE_MONOTONIC 1
42# endif 46# endif
90# else 94# else
91# define EV_USE_PORT 0 95# define EV_USE_PORT 0
92# endif 96# endif
93# endif 97# endif
94 98
99# ifndef EV_USE_INOTIFY
100# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H
101# define EV_USE_INOTIFY 1
102# else
103# define EV_USE_INOTIFY 0
104# endif
105# endif
106
95#endif 107#endif
96 108
97#include <math.h> 109#include <math.h>
98#include <stdlib.h> 110#include <stdlib.h>
99#include <fcntl.h> 111#include <fcntl.h>
106#include <sys/types.h> 118#include <sys/types.h>
107#include <time.h> 119#include <time.h>
108 120
109#include <signal.h> 121#include <signal.h>
110 122
123#ifdef EV_H
124# include EV_H
125#else
126# include "ev.h"
127#endif
128
111#ifndef _WIN32 129#ifndef _WIN32
112# include <unistd.h>
113# include <sys/time.h> 130# include <sys/time.h>
114# include <sys/wait.h> 131# include <sys/wait.h>
132# include <unistd.h>
115#else 133#else
116# define WIN32_LEAN_AND_MEAN 134# define WIN32_LEAN_AND_MEAN
117# include <windows.h> 135# include <windows.h>
118# ifndef EV_SELECT_IS_WINSOCKET 136# ifndef EV_SELECT_IS_WINSOCKET
119# define EV_SELECT_IS_WINSOCKET 1 137# define EV_SELECT_IS_WINSOCKET 1
152 170
153#ifndef EV_USE_PORT 171#ifndef EV_USE_PORT
154# define EV_USE_PORT 0 172# define EV_USE_PORT 0
155#endif 173#endif
156 174
175#ifndef EV_USE_INOTIFY
176# define EV_USE_INOTIFY 0
177#endif
178
179#ifndef EV_PID_HASHSIZE
180# if EV_MINIMAL
181# define EV_PID_HASHSIZE 1
182# else
183# define EV_PID_HASHSIZE 16
184# endif
185#endif
186
187#ifndef EV_INOTIFY_HASHSIZE
188# if EV_MINIMAL
189# define EV_INOTIFY_HASHSIZE 1
190# else
191# define EV_INOTIFY_HASHSIZE 16
192# endif
193#endif
194
157/**/ 195/**/
158 196
159#ifndef CLOCK_MONOTONIC 197#ifndef CLOCK_MONOTONIC
160# undef EV_USE_MONOTONIC 198# undef EV_USE_MONOTONIC
161# define EV_USE_MONOTONIC 0 199# define EV_USE_MONOTONIC 0
168 206
169#if EV_SELECT_IS_WINSOCKET 207#if EV_SELECT_IS_WINSOCKET
170# include <winsock.h> 208# include <winsock.h>
171#endif 209#endif
172 210
211#if !EV_STAT_ENABLE
212# define EV_USE_INOTIFY 0
213#endif
214
215#if EV_USE_INOTIFY
216# include <sys/inotify.h>
217#endif
218
173/**/ 219/**/
174 220
175#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 221#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
176#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 222#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
177#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
178/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds */ 223/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds */
179
180#ifdef EV_H
181# include EV_H
182#else
183# include "ev.h"
184#endif
185 224
186#if __GNUC__ >= 3 225#if __GNUC__ >= 3
187# define expect(expr,value) __builtin_expect ((expr),(value)) 226# define expect(expr,value) __builtin_expect ((expr),(value))
227# define inline_size static inline /* inline for codesize */
228# if EV_MINIMAL
229# define noinline __attribute__ ((noinline))
230# define inline_speed static noinline
231# else
232# define noinline
188# define inline static inline 233# define inline_speed static inline
234# endif
189#else 235#else
190# define expect(expr,value) (expr) 236# define expect(expr,value) (expr)
237# define inline_speed static
191# define inline static 238# define inline_size static
239# define noinline
192#endif 240#endif
193 241
194#define expect_false(expr) expect ((expr) != 0, 0) 242#define expect_false(expr) expect ((expr) != 0, 0)
195#define expect_true(expr) expect ((expr) != 0, 1) 243#define expect_true(expr) expect ((expr) != 0, 1)
196 244
198#define ABSPRI(w) ((w)->priority - EV_MINPRI) 246#define ABSPRI(w) ((w)->priority - EV_MINPRI)
199 247
200#define EMPTY0 /* required for microsofts broken pseudo-c compiler */ 248#define EMPTY0 /* required for microsofts broken pseudo-c compiler */
201#define EMPTY2(a,b) /* used to suppress some warnings */ 249#define EMPTY2(a,b) /* used to suppress some warnings */
202 250
203typedef struct ev_watcher *W; 251typedef ev_watcher *W;
204typedef struct ev_watcher_list *WL; 252typedef ev_watcher_list *WL;
205typedef struct ev_watcher_time *WT; 253typedef ev_watcher_time *WT;
206 254
207static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 255static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
208 256
209#ifdef _WIN32 257#ifdef _WIN32
210# include "ev_win32.c" 258# include "ev_win32.c"
212 260
213/*****************************************************************************/ 261/*****************************************************************************/
214 262
215static void (*syserr_cb)(const char *msg); 263static void (*syserr_cb)(const char *msg);
216 264
265void
217void ev_set_syserr_cb (void (*cb)(const char *msg)) 266ev_set_syserr_cb (void (*cb)(const char *msg))
218{ 267{
219 syserr_cb = cb; 268 syserr_cb = cb;
220} 269}
221 270
222static void 271static void noinline
223syserr (const char *msg) 272syserr (const char *msg)
224{ 273{
225 if (!msg) 274 if (!msg)
226 msg = "(libev) system error"; 275 msg = "(libev) system error";
227 276
234 } 283 }
235} 284}
236 285
237static void *(*alloc)(void *ptr, long size); 286static void *(*alloc)(void *ptr, long size);
238 287
288void
239void ev_set_allocator (void *(*cb)(void *ptr, long size)) 289ev_set_allocator (void *(*cb)(void *ptr, long size))
240{ 290{
241 alloc = cb; 291 alloc = cb;
242} 292}
243 293
244static void * 294inline_speed void *
245ev_realloc (void *ptr, long size) 295ev_realloc (void *ptr, long size)
246{ 296{
247 ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); 297 ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
248 298
249 if (!ptr && size) 299 if (!ptr && size)
273typedef struct 323typedef struct
274{ 324{
275 W w; 325 W w;
276 int events; 326 int events;
277} ANPENDING; 327} ANPENDING;
328
329#if EV_USE_INOTIFY
330typedef struct
331{
332 WL head;
333} ANFS;
334#endif
278 335
279#if EV_MULTIPLICITY 336#if EV_MULTIPLICITY
280 337
281 struct ev_loop 338 struct ev_loop
282 { 339 {
316 gettimeofday (&tv, 0); 373 gettimeofday (&tv, 0);
317 return tv.tv_sec + tv.tv_usec * 1e-6; 374 return tv.tv_sec + tv.tv_usec * 1e-6;
318#endif 375#endif
319} 376}
320 377
321inline ev_tstamp 378ev_tstamp inline_size
322get_clock (void) 379get_clock (void)
323{ 380{
324#if EV_USE_MONOTONIC 381#if EV_USE_MONOTONIC
325 if (expect_true (have_monotonic)) 382 if (expect_true (have_monotonic))
326 { 383 {
369#define array_free(stem, idx) \ 426#define array_free(stem, idx) \
370 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; 427 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
371 428
372/*****************************************************************************/ 429/*****************************************************************************/
373 430
374static void 431void noinline
375anfds_init (ANFD *base, int count)
376{
377 while (count--)
378 {
379 base->head = 0;
380 base->events = EV_NONE;
381 base->reify = 0;
382
383 ++base;
384 }
385}
386
387void
388ev_feed_event (EV_P_ void *w, int revents) 432ev_feed_event (EV_P_ void *w, int revents)
389{ 433{
390 W w_ = (W)w; 434 W w_ = (W)w;
391 435
392 if (expect_false (w_->pending)) 436 if (expect_false (w_->pending))
399 array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2); 443 array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
400 pendings [ABSPRI (w_)][w_->pending - 1].w = w_; 444 pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
401 pendings [ABSPRI (w_)][w_->pending - 1].events = revents; 445 pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
402} 446}
403 447
404static void 448void inline_size
405queue_events (EV_P_ W *events, int eventcnt, int type) 449queue_events (EV_P_ W *events, int eventcnt, int type)
406{ 450{
407 int i; 451 int i;
408 452
409 for (i = 0; i < eventcnt; ++i) 453 for (i = 0; i < eventcnt; ++i)
410 ev_feed_event (EV_A_ events [i], type); 454 ev_feed_event (EV_A_ events [i], type);
411} 455}
412 456
413inline void 457/*****************************************************************************/
458
459void inline_size
460anfds_init (ANFD *base, int count)
461{
462 while (count--)
463 {
464 base->head = 0;
465 base->events = EV_NONE;
466 base->reify = 0;
467
468 ++base;
469 }
470}
471
472void inline_speed
414fd_event (EV_P_ int fd, int revents) 473fd_event (EV_P_ int fd, int revents)
415{ 474{
416 ANFD *anfd = anfds + fd; 475 ANFD *anfd = anfds + fd;
417 struct ev_io *w; 476 ev_io *w;
418 477
419 for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) 478 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
420 { 479 {
421 int ev = w->events & revents; 480 int ev = w->events & revents;
422 481
423 if (ev) 482 if (ev)
424 ev_feed_event (EV_A_ (W)w, ev); 483 ev_feed_event (EV_A_ (W)w, ev);
429ev_feed_fd_event (EV_P_ int fd, int revents) 488ev_feed_fd_event (EV_P_ int fd, int revents)
430{ 489{
431 fd_event (EV_A_ fd, revents); 490 fd_event (EV_A_ fd, revents);
432} 491}
433 492
434/*****************************************************************************/ 493void inline_size
435
436inline void
437fd_reify (EV_P) 494fd_reify (EV_P)
438{ 495{
439 int i; 496 int i;
440 497
441 for (i = 0; i < fdchangecnt; ++i) 498 for (i = 0; i < fdchangecnt; ++i)
442 { 499 {
443 int fd = fdchanges [i]; 500 int fd = fdchanges [i];
444 ANFD *anfd = anfds + fd; 501 ANFD *anfd = anfds + fd;
445 struct ev_io *w; 502 ev_io *w;
446 503
447 int events = 0; 504 int events = 0;
448 505
449 for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) 506 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
450 events |= w->events; 507 events |= w->events;
451 508
452#if EV_SELECT_IS_WINSOCKET 509#if EV_SELECT_IS_WINSOCKET
453 if (events) 510 if (events)
454 { 511 {
458 } 515 }
459#endif 516#endif
460 517
461 anfd->reify = 0; 518 anfd->reify = 0;
462 519
463 method_modify (EV_A_ fd, anfd->events, events); 520 backend_modify (EV_A_ fd, anfd->events, events);
464 anfd->events = events; 521 anfd->events = events;
465 } 522 }
466 523
467 fdchangecnt = 0; 524 fdchangecnt = 0;
468} 525}
469 526
470static void 527void inline_size
471fd_change (EV_P_ int fd) 528fd_change (EV_P_ int fd)
472{ 529{
473 if (expect_false (anfds [fd].reify)) 530 if (expect_false (anfds [fd].reify))
474 return; 531 return;
475 532
478 ++fdchangecnt; 535 ++fdchangecnt;
479 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 536 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
480 fdchanges [fdchangecnt - 1] = fd; 537 fdchanges [fdchangecnt - 1] = fd;
481} 538}
482 539
483static void 540void inline_speed
484fd_kill (EV_P_ int fd) 541fd_kill (EV_P_ int fd)
485{ 542{
486 struct ev_io *w; 543 ev_io *w;
487 544
488 while ((w = (struct ev_io *)anfds [fd].head)) 545 while ((w = (ev_io *)anfds [fd].head))
489 { 546 {
490 ev_io_stop (EV_A_ w); 547 ev_io_stop (EV_A_ w);
491 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 548 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
492 } 549 }
493} 550}
494 551
495inline int 552int inline_size
496fd_valid (int fd) 553fd_valid (int fd)
497{ 554{
498#ifdef _WIN32 555#ifdef _WIN32
499 return _get_osfhandle (fd) != -1; 556 return _get_osfhandle (fd) != -1;
500#else 557#else
501 return fcntl (fd, F_GETFD) != -1; 558 return fcntl (fd, F_GETFD) != -1;
502#endif 559#endif
503} 560}
504 561
505/* called on EBADF to verify fds */ 562/* called on EBADF to verify fds */
506static void 563static void noinline
507fd_ebadf (EV_P) 564fd_ebadf (EV_P)
508{ 565{
509 int fd; 566 int fd;
510 567
511 for (fd = 0; fd < anfdmax; ++fd) 568 for (fd = 0; fd < anfdmax; ++fd)
513 if (!fd_valid (fd) == -1 && errno == EBADF) 570 if (!fd_valid (fd) == -1 && errno == EBADF)
514 fd_kill (EV_A_ fd); 571 fd_kill (EV_A_ fd);
515} 572}
516 573
517/* called on ENOMEM in select/poll to kill some fds and retry */ 574/* called on ENOMEM in select/poll to kill some fds and retry */
518static void 575static void noinline
519fd_enomem (EV_P) 576fd_enomem (EV_P)
520{ 577{
521 int fd; 578 int fd;
522 579
523 for (fd = anfdmax; fd--; ) 580 for (fd = anfdmax; fd--; )
526 fd_kill (EV_A_ fd); 583 fd_kill (EV_A_ fd);
527 return; 584 return;
528 } 585 }
529} 586}
530 587
531/* usually called after fork if method needs to re-arm all fds from scratch */ 588/* usually called after fork if backend needs to re-arm all fds from scratch */
532static void 589static void noinline
533fd_rearm_all (EV_P) 590fd_rearm_all (EV_P)
534{ 591{
535 int fd; 592 int fd;
536 593
537 /* this should be highly optimised to not do anything but set a flag */ 594 /* this should be highly optimised to not do anything but set a flag */
543 } 600 }
544} 601}
545 602
546/*****************************************************************************/ 603/*****************************************************************************/
547 604
548static void 605void inline_speed
549upheap (WT *heap, int k) 606upheap (WT *heap, int k)
550{ 607{
551 WT w = heap [k]; 608 WT w = heap [k];
552 609
553 while (k && heap [k >> 1]->at > w->at) 610 while (k && heap [k >> 1]->at > w->at)
560 heap [k] = w; 617 heap [k] = w;
561 ((W)heap [k])->active = k + 1; 618 ((W)heap [k])->active = k + 1;
562 619
563} 620}
564 621
565static void 622void inline_speed
566downheap (WT *heap, int N, int k) 623downheap (WT *heap, int N, int k)
567{ 624{
568 WT w = heap [k]; 625 WT w = heap [k];
569 626
570 while (k < (N >> 1)) 627 while (k < (N >> 1))
584 641
585 heap [k] = w; 642 heap [k] = w;
586 ((W)heap [k])->active = k + 1; 643 ((W)heap [k])->active = k + 1;
587} 644}
588 645
589inline void 646void inline_size
590adjustheap (WT *heap, int N, int k) 647adjustheap (WT *heap, int N, int k)
591{ 648{
592 upheap (heap, k); 649 upheap (heap, k);
593 downheap (heap, N, k); 650 downheap (heap, N, k);
594} 651}
604static ANSIG *signals; 661static ANSIG *signals;
605static int signalmax; 662static int signalmax;
606 663
607static int sigpipe [2]; 664static int sigpipe [2];
608static sig_atomic_t volatile gotsig; 665static sig_atomic_t volatile gotsig;
609static struct ev_io sigev; 666static ev_io sigev;
610 667
611static void 668void inline_size
612signals_init (ANSIG *base, int count) 669signals_init (ANSIG *base, int count)
613{ 670{
614 while (count--) 671 while (count--)
615 { 672 {
616 base->head = 0; 673 base->head = 0;
636 write (sigpipe [1], &signum, 1); 693 write (sigpipe [1], &signum, 1);
637 errno = old_errno; 694 errno = old_errno;
638 } 695 }
639} 696}
640 697
641void 698void noinline
642ev_feed_signal_event (EV_P_ int signum) 699ev_feed_signal_event (EV_P_ int signum)
643{ 700{
644 WL w; 701 WL w;
645 702
646#if EV_MULTIPLICITY 703#if EV_MULTIPLICITY
657 for (w = signals [signum].head; w; w = w->next) 714 for (w = signals [signum].head; w; w = w->next)
658 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 715 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
659} 716}
660 717
661static void 718static void
662sigcb (EV_P_ struct ev_io *iow, int revents) 719sigcb (EV_P_ ev_io *iow, int revents)
663{ 720{
664 int signum; 721 int signum;
665 722
666 read (sigpipe [0], &revents, 1); 723 read (sigpipe [0], &revents, 1);
667 gotsig = 0; 724 gotsig = 0;
669 for (signum = signalmax; signum--; ) 726 for (signum = signalmax; signum--; )
670 if (signals [signum].gotsig) 727 if (signals [signum].gotsig)
671 ev_feed_signal_event (EV_A_ signum + 1); 728 ev_feed_signal_event (EV_A_ signum + 1);
672} 729}
673 730
674static void 731void inline_size
675fd_intern (int fd) 732fd_intern (int fd)
676{ 733{
677#ifdef _WIN32 734#ifdef _WIN32
678 int arg = 1; 735 int arg = 1;
679 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); 736 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
681 fcntl (fd, F_SETFD, FD_CLOEXEC); 738 fcntl (fd, F_SETFD, FD_CLOEXEC);
682 fcntl (fd, F_SETFL, O_NONBLOCK); 739 fcntl (fd, F_SETFL, O_NONBLOCK);
683#endif 740#endif
684} 741}
685 742
686static void 743static void noinline
687siginit (EV_P) 744siginit (EV_P)
688{ 745{
689 fd_intern (sigpipe [0]); 746 fd_intern (sigpipe [0]);
690 fd_intern (sigpipe [1]); 747 fd_intern (sigpipe [1]);
691 748
694 ev_unref (EV_A); /* child watcher should not keep loop alive */ 751 ev_unref (EV_A); /* child watcher should not keep loop alive */
695} 752}
696 753
697/*****************************************************************************/ 754/*****************************************************************************/
698 755
699static struct ev_child *childs [PID_HASHSIZE]; 756static ev_child *childs [EV_PID_HASHSIZE];
700 757
701#ifndef _WIN32 758#ifndef _WIN32
702 759
703static struct ev_signal childev; 760static ev_signal childev;
704 761
705#ifndef WCONTINUED 762void inline_speed
706# define WCONTINUED 0
707#endif
708
709static void
710child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status) 763child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)
711{ 764{
712 struct ev_child *w; 765 ev_child *w;
713 766
714 for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next) 767 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
715 if (w->pid == pid || !w->pid) 768 if (w->pid == pid || !w->pid)
716 { 769 {
717 ev_priority (w) = ev_priority (sw); /* need to do it *now* */ 770 ev_priority (w) = ev_priority (sw); /* need to do it *now* */
718 w->rpid = pid; 771 w->rpid = pid;
719 w->rstatus = status; 772 w->rstatus = status;
720 ev_feed_event (EV_A_ (W)w, EV_CHILD); 773 ev_feed_event (EV_A_ (W)w, EV_CHILD);
721 } 774 }
722} 775}
723 776
777#ifndef WCONTINUED
778# define WCONTINUED 0
779#endif
780
724static void 781static void
725childcb (EV_P_ struct ev_signal *sw, int revents) 782childcb (EV_P_ ev_signal *sw, int revents)
726{ 783{
727 int pid, status; 784 int pid, status;
728 785
786 /* some systems define WCONTINUED but then fail to support it (linux 2.4) */
729 if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) 787 if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))
730 { 788 if (!WCONTINUED
789 || errno != EINVAL
790 || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED)))
791 return;
792
731 /* make sure we are called again until all childs have been reaped */ 793 /* make sure we are called again until all childs have been reaped */
794 /* we need to do it this way so that the callback gets called before we continue */
732 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 795 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
733 796
734 child_reap (EV_A_ sw, pid, pid, status); 797 child_reap (EV_A_ sw, pid, pid, status);
798 if (EV_PID_HASHSIZE > 1)
735 child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ 799 child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
736 }
737} 800}
738 801
739#endif 802#endif
740 803
741/*****************************************************************************/ 804/*****************************************************************************/
767{ 830{
768 return EV_VERSION_MINOR; 831 return EV_VERSION_MINOR;
769} 832}
770 833
771/* return true if we are running with elevated privileges and should ignore env variables */ 834/* return true if we are running with elevated privileges and should ignore env variables */
772static int 835int inline_size
773enable_secure (void) 836enable_secure (void)
774{ 837{
775#ifdef _WIN32 838#ifdef _WIN32
776 return 0; 839 return 0;
777#else 840#else
781} 844}
782 845
783unsigned int 846unsigned int
784ev_supported_backends (void) 847ev_supported_backends (void)
785{ 848{
786}
787
788unsigned int
789ev_recommended_backends (void)
790{
791 unsigned int flags; 849 unsigned int flags = 0;
792 850
793 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 851 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
794 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 852 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
795 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; 853 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
796 if (EV_USE_POLL ) flags |= EVBACKEND_POLL; 854 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
798 856
799 return flags; 857 return flags;
800} 858}
801 859
802unsigned int 860unsigned int
803ev_backend (EV_P) 861ev_recommended_backends (void)
804{ 862{
805 unsigned int flags = ev_recommended_backends (); 863 unsigned int flags = ev_supported_backends ();
806 864
807#ifndef __NetBSD__ 865#ifndef __NetBSD__
808 /* kqueue is borked on everything but netbsd apparently */ 866 /* kqueue is borked on everything but netbsd apparently */
809 /* it usually doesn't work correctly on anything but sockets and pipes */ 867 /* it usually doesn't work correctly on anything but sockets and pipes */
810 flags &= ~EVBACKEND_KQUEUE; 868 flags &= ~EVBACKEND_KQUEUE;
815#endif 873#endif
816 874
817 return flags; 875 return flags;
818} 876}
819 877
820static void 878unsigned int
879ev_embeddable_backends (void)
880{
881 return EVBACKEND_EPOLL
882 | EVBACKEND_KQUEUE
883 | EVBACKEND_PORT;
884}
885
886unsigned int
887ev_backend (EV_P)
888{
889 return backend;
890}
891
892static void noinline
821loop_init (EV_P_ unsigned int flags) 893loop_init (EV_P_ unsigned int flags)
822{ 894{
823 if (!method) 895 if (!backend)
824 { 896 {
825#if EV_USE_MONOTONIC 897#if EV_USE_MONOTONIC
826 { 898 {
827 struct timespec ts; 899 struct timespec ts;
828 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 900 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
841 flags = atoi (getenv ("LIBEV_FLAGS")); 913 flags = atoi (getenv ("LIBEV_FLAGS"));
842 914
843 if (!(flags & 0x0000ffffUL)) 915 if (!(flags & 0x0000ffffUL))
844 flags |= ev_recommended_backends (); 916 flags |= ev_recommended_backends ();
845 917
846 method = 0; 918 backend = 0;
919 backend_fd = -1;
920#if EV_USE_INOTIFY
921 fs_fd = -2;
922#endif
923
847#if EV_USE_PORT 924#if EV_USE_PORT
848 if (!method && (flags & EVBACKEND_PORT )) method = port_init (EV_A_ flags); 925 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
849#endif 926#endif
850#if EV_USE_KQUEUE 927#if EV_USE_KQUEUE
851 if (!method && (flags & EVBACKEND_KQUEUE)) method = kqueue_init (EV_A_ flags); 928 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
852#endif 929#endif
853#if EV_USE_EPOLL 930#if EV_USE_EPOLL
854 if (!method && (flags & EVBACKEND_EPOLL )) method = epoll_init (EV_A_ flags); 931 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
855#endif 932#endif
856#if EV_USE_POLL 933#if EV_USE_POLL
857 if (!method && (flags & EVBACKEND_POLL )) method = poll_init (EV_A_ flags); 934 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
858#endif 935#endif
859#if EV_USE_SELECT 936#if EV_USE_SELECT
860 if (!method && (flags & EVBACKEND_SELECT)) method = select_init (EV_A_ flags); 937 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
861#endif 938#endif
862 939
863 ev_init (&sigev, sigcb); 940 ev_init (&sigev, sigcb);
864 ev_set_priority (&sigev, EV_MAXPRI); 941 ev_set_priority (&sigev, EV_MAXPRI);
865 } 942 }
866} 943}
867 944
868static void 945static void noinline
869loop_destroy (EV_P) 946loop_destroy (EV_P)
870{ 947{
871 int i; 948 int i;
872 949
950#if EV_USE_INOTIFY
951 if (fs_fd >= 0)
952 close (fs_fd);
953#endif
954
955 if (backend_fd >= 0)
956 close (backend_fd);
957
873#if EV_USE_PORT 958#if EV_USE_PORT
874 if (method == EVBACKEND_PORT ) port_destroy (EV_A); 959 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
875#endif 960#endif
876#if EV_USE_KQUEUE 961#if EV_USE_KQUEUE
877 if (method == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 962 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
878#endif 963#endif
879#if EV_USE_EPOLL 964#if EV_USE_EPOLL
880 if (method == EVBACKEND_EPOLL ) epoll_destroy (EV_A); 965 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
881#endif 966#endif
882#if EV_USE_POLL 967#if EV_USE_POLL
883 if (method == EVBACKEND_POLL ) poll_destroy (EV_A); 968 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
884#endif 969#endif
885#if EV_USE_SELECT 970#if EV_USE_SELECT
886 if (method == EVBACKEND_SELECT) select_destroy (EV_A); 971 if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
887#endif 972#endif
888 973
889 for (i = NUMPRI; i--; ) 974 for (i = NUMPRI; i--; )
890 array_free (pending, [i]); 975 array_free (pending, [i]);
891 976
892 /* have to use the microsoft-never-gets-it-right macro */ 977 /* have to use the microsoft-never-gets-it-right macro */
893 array_free (fdchange, EMPTY0); 978 array_free (fdchange, EMPTY0);
894 array_free (timer, EMPTY0); 979 array_free (timer, EMPTY0);
895#if EV_PERIODICS 980#if EV_PERIODIC_ENABLE
896 array_free (periodic, EMPTY0); 981 array_free (periodic, EMPTY0);
897#endif 982#endif
898 array_free (idle, EMPTY0); 983 array_free (idle, EMPTY0);
899 array_free (prepare, EMPTY0); 984 array_free (prepare, EMPTY0);
900 array_free (check, EMPTY0); 985 array_free (check, EMPTY0);
901 986
902 method = 0; 987 backend = 0;
903} 988}
904 989
905static void 990void inline_size infy_fork (EV_P);
991
992void inline_size
906loop_fork (EV_P) 993loop_fork (EV_P)
907{ 994{
908#if EV_USE_PORT 995#if EV_USE_PORT
909 if (method == EVBACKEND_PORT ) port_fork (EV_A); 996 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
910#endif 997#endif
911#if EV_USE_KQUEUE 998#if EV_USE_KQUEUE
912 if (method == EVBACKEND_KQUEUE) kqueue_fork (EV_A); 999 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
913#endif 1000#endif
914#if EV_USE_EPOLL 1001#if EV_USE_EPOLL
915 if (method == EVBACKEND_EPOLL ) epoll_fork (EV_A); 1002 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
1003#endif
1004#if EV_USE_INOTIFY
1005 infy_fork (EV_A);
916#endif 1006#endif
917 1007
918 if (ev_is_active (&sigev)) 1008 if (ev_is_active (&sigev))
919 { 1009 {
920 /* default loop */ 1010 /* default loop */
941 1031
942 memset (loop, 0, sizeof (struct ev_loop)); 1032 memset (loop, 0, sizeof (struct ev_loop));
943 1033
944 loop_init (EV_A_ flags); 1034 loop_init (EV_A_ flags);
945 1035
946 if (ev_method (EV_A)) 1036 if (ev_backend (EV_A))
947 return loop; 1037 return loop;
948 1038
949 return 0; 1039 return 0;
950} 1040}
951 1041
984 ev_default_loop_ptr = 1; 1074 ev_default_loop_ptr = 1;
985#endif 1075#endif
986 1076
987 loop_init (EV_A_ flags); 1077 loop_init (EV_A_ flags);
988 1078
989 if (ev_method (EV_A)) 1079 if (ev_backend (EV_A))
990 { 1080 {
991 siginit (EV_A); 1081 siginit (EV_A);
992 1082
993#ifndef _WIN32 1083#ifndef _WIN32
994 ev_signal_init (&childev, childcb, SIGCHLD); 1084 ev_signal_init (&childev, childcb, SIGCHLD);
1030{ 1120{
1031#if EV_MULTIPLICITY 1121#if EV_MULTIPLICITY
1032 struct ev_loop *loop = ev_default_loop_ptr; 1122 struct ev_loop *loop = ev_default_loop_ptr;
1033#endif 1123#endif
1034 1124
1035 if (method) 1125 if (backend)
1036 postfork = 1; 1126 postfork = 1;
1037} 1127}
1038 1128
1039/*****************************************************************************/ 1129/*****************************************************************************/
1040 1130
1041static int 1131int inline_size
1042any_pending (EV_P) 1132any_pending (EV_P)
1043{ 1133{
1044 int pri; 1134 int pri;
1045 1135
1046 for (pri = NUMPRI; pri--; ) 1136 for (pri = NUMPRI; pri--; )
1048 return 1; 1138 return 1;
1049 1139
1050 return 0; 1140 return 0;
1051} 1141}
1052 1142
1053inline void 1143void inline_speed
1054call_pending (EV_P) 1144call_pending (EV_P)
1055{ 1145{
1056 int pri; 1146 int pri;
1057 1147
1058 for (pri = NUMPRI; pri--; ) 1148 for (pri = NUMPRI; pri--; )
1060 { 1150 {
1061 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 1151 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1062 1152
1063 if (expect_true (p->w)) 1153 if (expect_true (p->w))
1064 { 1154 {
1155 /*assert (("non-pending watcher on pending list", p->w->pending));*/
1156
1065 p->w->pending = 0; 1157 p->w->pending = 0;
1066 EV_CB_INVOKE (p->w, p->events); 1158 EV_CB_INVOKE (p->w, p->events);
1067 } 1159 }
1068 } 1160 }
1069} 1161}
1070 1162
1071inline void 1163void inline_size
1072timers_reify (EV_P) 1164timers_reify (EV_P)
1073{ 1165{
1074 while (timercnt && ((WT)timers [0])->at <= mn_now) 1166 while (timercnt && ((WT)timers [0])->at <= mn_now)
1075 { 1167 {
1076 struct ev_timer *w = timers [0]; 1168 ev_timer *w = timers [0];
1077 1169
1078 assert (("inactive timer on timer heap detected", ev_is_active (w))); 1170 /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
1079 1171
1080 /* first reschedule or stop timer */ 1172 /* first reschedule or stop timer */
1081 if (w->repeat) 1173 if (w->repeat)
1082 { 1174 {
1083 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); 1175 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1093 1185
1094 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); 1186 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
1095 } 1187 }
1096} 1188}
1097 1189
1098#if EV_PERIODICS 1190#if EV_PERIODIC_ENABLE
1099inline void 1191void inline_size
1100periodics_reify (EV_P) 1192periodics_reify (EV_P)
1101{ 1193{
1102 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) 1194 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1103 { 1195 {
1104 struct ev_periodic *w = periodics [0]; 1196 ev_periodic *w = periodics [0];
1105 1197
1106 assert (("inactive timer on periodic heap detected", ev_is_active (w))); 1198 /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
1107 1199
1108 /* first reschedule or stop timer */ 1200 /* first reschedule or stop timer */
1109 if (w->reschedule_cb) 1201 if (w->reschedule_cb)
1110 { 1202 {
1111 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); 1203 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
1123 1215
1124 ev_feed_event (EV_A_ (W)w, EV_PERIODIC); 1216 ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
1125 } 1217 }
1126} 1218}
1127 1219
1128static void 1220static void noinline
1129periodics_reschedule (EV_P) 1221periodics_reschedule (EV_P)
1130{ 1222{
1131 int i; 1223 int i;
1132 1224
1133 /* adjust periodics after time jump */ 1225 /* adjust periodics after time jump */
1134 for (i = 0; i < periodiccnt; ++i) 1226 for (i = 0; i < periodiccnt; ++i)
1135 { 1227 {
1136 struct ev_periodic *w = periodics [i]; 1228 ev_periodic *w = periodics [i];
1137 1229
1138 if (w->reschedule_cb) 1230 if (w->reschedule_cb)
1139 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); 1231 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1140 else if (w->interval) 1232 else if (w->interval)
1141 ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; 1233 ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
1145 for (i = periodiccnt >> 1; i--; ) 1237 for (i = periodiccnt >> 1; i--; )
1146 downheap ((WT *)periodics, periodiccnt, i); 1238 downheap ((WT *)periodics, periodiccnt, i);
1147} 1239}
1148#endif 1240#endif
1149 1241
1150inline int 1242int inline_size
1151time_update_monotonic (EV_P) 1243time_update_monotonic (EV_P)
1152{ 1244{
1153 mn_now = get_clock (); 1245 mn_now = get_clock ();
1154 1246
1155 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) 1247 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1163 ev_rt_now = ev_time (); 1255 ev_rt_now = ev_time ();
1164 return 1; 1256 return 1;
1165 } 1257 }
1166} 1258}
1167 1259
1168inline void 1260void inline_size
1169time_update (EV_P) 1261time_update (EV_P)
1170{ 1262{
1171 int i; 1263 int i;
1172 1264
1173#if EV_USE_MONOTONIC 1265#if EV_USE_MONOTONIC
1175 { 1267 {
1176 if (time_update_monotonic (EV_A)) 1268 if (time_update_monotonic (EV_A))
1177 { 1269 {
1178 ev_tstamp odiff = rtmn_diff; 1270 ev_tstamp odiff = rtmn_diff;
1179 1271
1180 for (i = 4; --i; ) /* loop a few times, before making important decisions */ 1272 /* loop a few times, before making important decisions.
1273 * on the choice of "4": one iteration isn't enough,
1274 * in case we get preempted during the calls to
1275 * ev_time and get_clock. a second call is almost guarenteed
1276 * to succeed in that case, though. and looping a few more times
1277 * doesn't hurt either as we only do this on time-jumps or
1278 * in the unlikely event of getting preempted here.
1279 */
1280 for (i = 4; --i; )
1181 { 1281 {
1182 rtmn_diff = ev_rt_now - mn_now; 1282 rtmn_diff = ev_rt_now - mn_now;
1183 1283
1184 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) 1284 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1185 return; /* all is well */ 1285 return; /* all is well */
1187 ev_rt_now = ev_time (); 1287 ev_rt_now = ev_time ();
1188 mn_now = get_clock (); 1288 mn_now = get_clock ();
1189 now_floor = mn_now; 1289 now_floor = mn_now;
1190 } 1290 }
1191 1291
1192# if EV_PERIODICS 1292# if EV_PERIODIC_ENABLE
1193 periodics_reschedule (EV_A); 1293 periodics_reschedule (EV_A);
1194# endif 1294# endif
1195 /* no timer adjustment, as the monotonic clock doesn't jump */ 1295 /* no timer adjustment, as the monotonic clock doesn't jump */
1196 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ 1296 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1197 } 1297 }
1201 { 1301 {
1202 ev_rt_now = ev_time (); 1302 ev_rt_now = ev_time ();
1203 1303
1204 if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) 1304 if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
1205 { 1305 {
1206#if EV_PERIODICS 1306#if EV_PERIODIC_ENABLE
1207 periodics_reschedule (EV_A); 1307 periodics_reschedule (EV_A);
1208#endif 1308#endif
1209 1309
1210 /* adjust timers. this is easy, as the offset is the same for all */ 1310 /* adjust timers. this is easy, as the offset is the same for all */
1211 for (i = 0; i < timercnt; ++i) 1311 for (i = 0; i < timercnt; ++i)
1231static int loop_done; 1331static int loop_done;
1232 1332
1233void 1333void
1234ev_loop (EV_P_ int flags) 1334ev_loop (EV_P_ int flags)
1235{ 1335{
1236 double block;
1237 loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; 1336 loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)
1337 ? EVUNLOOP_ONE
1338 : EVUNLOOP_CANCEL;
1238 1339
1239 while (activecnt) 1340 while (activecnt)
1240 { 1341 {
1342 /* we might have forked, so reify kernel state if necessary */
1343 #if EV_FORK_ENABLE
1344 if (expect_false (postfork))
1345 if (forkcnt)
1346 {
1347 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
1348 call_pending (EV_A);
1349 }
1350 #endif
1351
1241 /* queue check watchers (and execute them) */ 1352 /* queue check watchers (and execute them) */
1242 if (expect_false (preparecnt)) 1353 if (expect_false (preparecnt))
1243 { 1354 {
1244 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 1355 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1245 call_pending (EV_A); 1356 call_pending (EV_A);
1251 1362
1252 /* update fd-related kernel structures */ 1363 /* update fd-related kernel structures */
1253 fd_reify (EV_A); 1364 fd_reify (EV_A);
1254 1365
1255 /* calculate blocking time */ 1366 /* calculate blocking time */
1367 {
1368 double block;
1256 1369
1257 /* we only need this for !monotonic clock or timers, but as we basically 1370 if (flags & EVLOOP_NONBLOCK || idlecnt)
1258 always have timers, we just calculate it always */ 1371 block = 0.; /* do not block at all */
1372 else
1373 {
1374 /* update time to cancel out callback processing overhead */
1259#if EV_USE_MONOTONIC 1375#if EV_USE_MONOTONIC
1260 if (expect_true (have_monotonic)) 1376 if (expect_true (have_monotonic))
1261 time_update_monotonic (EV_A); 1377 time_update_monotonic (EV_A);
1262 else 1378 else
1263#endif 1379#endif
1264 { 1380 {
1265 ev_rt_now = ev_time (); 1381 ev_rt_now = ev_time ();
1266 mn_now = ev_rt_now; 1382 mn_now = ev_rt_now;
1267 } 1383 }
1268 1384
1269 if (flags & EVLOOP_NONBLOCK || idlecnt)
1270 block = 0.;
1271 else
1272 {
1273 block = MAX_BLOCKTIME; 1385 block = MAX_BLOCKTIME;
1274 1386
1275 if (timercnt) 1387 if (timercnt)
1276 { 1388 {
1277 ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge; 1389 ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1278 if (block > to) block = to; 1390 if (block > to) block = to;
1279 } 1391 }
1280 1392
1281#if EV_PERIODICS 1393#if EV_PERIODIC_ENABLE
1282 if (periodiccnt) 1394 if (periodiccnt)
1283 { 1395 {
1284 ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge; 1396 ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1285 if (block > to) block = to; 1397 if (block > to) block = to;
1286 } 1398 }
1287#endif 1399#endif
1288 1400
1289 if (expect_false (block < 0.)) block = 0.; 1401 if (expect_false (block < 0.)) block = 0.;
1290 } 1402 }
1291 1403
1292 method_poll (EV_A_ block); 1404 backend_poll (EV_A_ block);
1405 }
1293 1406
1294 /* update ev_rt_now, do magic */ 1407 /* update ev_rt_now, do magic */
1295 time_update (EV_A); 1408 time_update (EV_A);
1296 1409
1297 /* queue pending timers and reschedule them */ 1410 /* queue pending timers and reschedule them */
1298 timers_reify (EV_A); /* relative timers called last */ 1411 timers_reify (EV_A); /* relative timers called last */
1299#if EV_PERIODICS 1412#if EV_PERIODIC_ENABLE
1300 periodics_reify (EV_A); /* absolute timers called first */ 1413 periodics_reify (EV_A); /* absolute timers called first */
1301#endif 1414#endif
1302 1415
1303 /* queue idle watchers unless io or timers are pending */ 1416 /* queue idle watchers unless other events are pending */
1304 if (idlecnt && !any_pending (EV_A)) 1417 if (idlecnt && !any_pending (EV_A))
1305 queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); 1418 queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1306 1419
1307 /* queue check watchers, to be executed first */ 1420 /* queue check watchers, to be executed first */
1308 if (expect_false (checkcnt)) 1421 if (expect_false (checkcnt))
1312 1425
1313 if (expect_false (loop_done)) 1426 if (expect_false (loop_done))
1314 break; 1427 break;
1315 } 1428 }
1316 1429
1317 if (loop_done != 2) 1430 if (loop_done == EVUNLOOP_ONE)
1318 loop_done = 0; 1431 loop_done = EVUNLOOP_CANCEL;
1319} 1432}
1320 1433
1321void 1434void
1322ev_unloop (EV_P_ int how) 1435ev_unloop (EV_P_ int how)
1323{ 1436{
1324 loop_done = how; 1437 loop_done = how;
1325} 1438}
1326 1439
1327/*****************************************************************************/ 1440/*****************************************************************************/
1328 1441
1329inline void 1442void inline_size
1330wlist_add (WL *head, WL elem) 1443wlist_add (WL *head, WL elem)
1331{ 1444{
1332 elem->next = *head; 1445 elem->next = *head;
1333 *head = elem; 1446 *head = elem;
1334} 1447}
1335 1448
1336inline void 1449void inline_size
1337wlist_del (WL *head, WL elem) 1450wlist_del (WL *head, WL elem)
1338{ 1451{
1339 while (*head) 1452 while (*head)
1340 { 1453 {
1341 if (*head == elem) 1454 if (*head == elem)
1346 1459
1347 head = &(*head)->next; 1460 head = &(*head)->next;
1348 } 1461 }
1349} 1462}
1350 1463
1351inline void 1464void inline_speed
1352ev_clear_pending (EV_P_ W w) 1465ev_clear_pending (EV_P_ W w)
1353{ 1466{
1354 if (w->pending) 1467 if (w->pending)
1355 { 1468 {
1356 pendings [ABSPRI (w)][w->pending - 1].w = 0; 1469 pendings [ABSPRI (w)][w->pending - 1].w = 0;
1357 w->pending = 0; 1470 w->pending = 0;
1358 } 1471 }
1359} 1472}
1360 1473
1361inline void 1474void inline_speed
1362ev_start (EV_P_ W w, int active) 1475ev_start (EV_P_ W w, int active)
1363{ 1476{
1364 if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; 1477 if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
1365 if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; 1478 if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
1366 1479
1367 w->active = active; 1480 w->active = active;
1368 ev_ref (EV_A); 1481 ev_ref (EV_A);
1369} 1482}
1370 1483
1371inline void 1484void inline_size
1372ev_stop (EV_P_ W w) 1485ev_stop (EV_P_ W w)
1373{ 1486{
1374 ev_unref (EV_A); 1487 ev_unref (EV_A);
1375 w->active = 0; 1488 w->active = 0;
1376} 1489}
1377 1490
1378/*****************************************************************************/ 1491/*****************************************************************************/
1379 1492
1380void 1493void
1381ev_io_start (EV_P_ struct ev_io *w) 1494ev_io_start (EV_P_ ev_io *w)
1382{ 1495{
1383 int fd = w->fd; 1496 int fd = w->fd;
1384 1497
1385 if (expect_false (ev_is_active (w))) 1498 if (expect_false (ev_is_active (w)))
1386 return; 1499 return;
1393 1506
1394 fd_change (EV_A_ fd); 1507 fd_change (EV_A_ fd);
1395} 1508}
1396 1509
1397void 1510void
1398ev_io_stop (EV_P_ struct ev_io *w) 1511ev_io_stop (EV_P_ ev_io *w)
1399{ 1512{
1400 ev_clear_pending (EV_A_ (W)w); 1513 ev_clear_pending (EV_A_ (W)w);
1401 if (expect_false (!ev_is_active (w))) 1514 if (expect_false (!ev_is_active (w)))
1402 return; 1515 return;
1403 1516
1408 1521
1409 fd_change (EV_A_ w->fd); 1522 fd_change (EV_A_ w->fd);
1410} 1523}
1411 1524
1412void 1525void
1413ev_timer_start (EV_P_ struct ev_timer *w) 1526ev_timer_start (EV_P_ ev_timer *w)
1414{ 1527{
1415 if (expect_false (ev_is_active (w))) 1528 if (expect_false (ev_is_active (w)))
1416 return; 1529 return;
1417 1530
1418 ((WT)w)->at += mn_now; 1531 ((WT)w)->at += mn_now;
1419 1532
1420 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 1533 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1421 1534
1422 ev_start (EV_A_ (W)w, ++timercnt); 1535 ev_start (EV_A_ (W)w, ++timercnt);
1423 array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2); 1536 array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2);
1424 timers [timercnt - 1] = w; 1537 timers [timercnt - 1] = w;
1425 upheap ((WT *)timers, timercnt - 1); 1538 upheap ((WT *)timers, timercnt - 1);
1426 1539
1427 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); 1540 /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/
1428} 1541}
1429 1542
1430void 1543void
1431ev_timer_stop (EV_P_ struct ev_timer *w) 1544ev_timer_stop (EV_P_ ev_timer *w)
1432{ 1545{
1433 ev_clear_pending (EV_A_ (W)w); 1546 ev_clear_pending (EV_A_ (W)w);
1434 if (expect_false (!ev_is_active (w))) 1547 if (expect_false (!ev_is_active (w)))
1435 return; 1548 return;
1436 1549
1437 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); 1550 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1438 1551
1552 {
1553 int active = ((W)w)->active;
1554
1439 if (expect_true (((W)w)->active < timercnt--)) 1555 if (expect_true (--active < --timercnt))
1440 { 1556 {
1441 timers [((W)w)->active - 1] = timers [timercnt]; 1557 timers [active] = timers [timercnt];
1442 adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); 1558 adjustheap ((WT *)timers, timercnt, active);
1443 } 1559 }
1560 }
1444 1561
1445 ((WT)w)->at -= mn_now; 1562 ((WT)w)->at -= mn_now;
1446 1563
1447 ev_stop (EV_A_ (W)w); 1564 ev_stop (EV_A_ (W)w);
1448} 1565}
1449 1566
1450void 1567void
1451ev_timer_again (EV_P_ struct ev_timer *w) 1568ev_timer_again (EV_P_ ev_timer *w)
1452{ 1569{
1453 if (ev_is_active (w)) 1570 if (ev_is_active (w))
1454 { 1571 {
1455 if (w->repeat) 1572 if (w->repeat)
1456 { 1573 {
1465 w->at = w->repeat; 1582 w->at = w->repeat;
1466 ev_timer_start (EV_A_ w); 1583 ev_timer_start (EV_A_ w);
1467 } 1584 }
1468} 1585}
1469 1586
1470#if EV_PERIODICS 1587#if EV_PERIODIC_ENABLE
1471void 1588void
1472ev_periodic_start (EV_P_ struct ev_periodic *w) 1589ev_periodic_start (EV_P_ ev_periodic *w)
1473{ 1590{
1474 if (expect_false (ev_is_active (w))) 1591 if (expect_false (ev_is_active (w)))
1475 return; 1592 return;
1476 1593
1477 if (w->reschedule_cb) 1594 if (w->reschedule_cb)
1482 /* this formula differs from the one in periodic_reify because we do not always round up */ 1599 /* this formula differs from the one in periodic_reify because we do not always round up */
1483 ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; 1600 ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
1484 } 1601 }
1485 1602
1486 ev_start (EV_A_ (W)w, ++periodiccnt); 1603 ev_start (EV_A_ (W)w, ++periodiccnt);
1487 array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); 1604 array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1488 periodics [periodiccnt - 1] = w; 1605 periodics [periodiccnt - 1] = w;
1489 upheap ((WT *)periodics, periodiccnt - 1); 1606 upheap ((WT *)periodics, periodiccnt - 1);
1490 1607
1491 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); 1608 /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/
1492} 1609}
1493 1610
1494void 1611void
1495ev_periodic_stop (EV_P_ struct ev_periodic *w) 1612ev_periodic_stop (EV_P_ ev_periodic *w)
1496{ 1613{
1497 ev_clear_pending (EV_A_ (W)w); 1614 ev_clear_pending (EV_A_ (W)w);
1498 if (expect_false (!ev_is_active (w))) 1615 if (expect_false (!ev_is_active (w)))
1499 return; 1616 return;
1500 1617
1501 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); 1618 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1502 1619
1620 {
1621 int active = ((W)w)->active;
1622
1503 if (expect_true (((W)w)->active < periodiccnt--)) 1623 if (expect_true (--active < --periodiccnt))
1504 { 1624 {
1505 periodics [((W)w)->active - 1] = periodics [periodiccnt]; 1625 periodics [active] = periodics [periodiccnt];
1506 adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); 1626 adjustheap ((WT *)periodics, periodiccnt, active);
1507 } 1627 }
1628 }
1508 1629
1509 ev_stop (EV_A_ (W)w); 1630 ev_stop (EV_A_ (W)w);
1510} 1631}
1511 1632
1512void 1633void
1513ev_periodic_again (EV_P_ struct ev_periodic *w) 1634ev_periodic_again (EV_P_ ev_periodic *w)
1514{ 1635{
1515 /* TODO: use adjustheap and recalculation */ 1636 /* TODO: use adjustheap and recalculation */
1516 ev_periodic_stop (EV_A_ w); 1637 ev_periodic_stop (EV_A_ w);
1517 ev_periodic_start (EV_A_ w); 1638 ev_periodic_start (EV_A_ w);
1518} 1639}
1519#endif 1640#endif
1520 1641
1521void
1522ev_idle_start (EV_P_ struct ev_idle *w)
1523{
1524 if (expect_false (ev_is_active (w)))
1525 return;
1526
1527 ev_start (EV_A_ (W)w, ++idlecnt);
1528 array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1529 idles [idlecnt - 1] = w;
1530}
1531
1532void
1533ev_idle_stop (EV_P_ struct ev_idle *w)
1534{
1535 ev_clear_pending (EV_A_ (W)w);
1536 if (expect_false (!ev_is_active (w)))
1537 return;
1538
1539 idles [((W)w)->active - 1] = idles [--idlecnt];
1540 ev_stop (EV_A_ (W)w);
1541}
1542
1543void
1544ev_prepare_start (EV_P_ struct ev_prepare *w)
1545{
1546 if (expect_false (ev_is_active (w)))
1547 return;
1548
1549 ev_start (EV_A_ (W)w, ++preparecnt);
1550 array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1551 prepares [preparecnt - 1] = w;
1552}
1553
1554void
1555ev_prepare_stop (EV_P_ struct ev_prepare *w)
1556{
1557 ev_clear_pending (EV_A_ (W)w);
1558 if (expect_false (!ev_is_active (w)))
1559 return;
1560
1561 prepares [((W)w)->active - 1] = prepares [--preparecnt];
1562 ev_stop (EV_A_ (W)w);
1563}
1564
1565void
1566ev_check_start (EV_P_ struct ev_check *w)
1567{
1568 if (expect_false (ev_is_active (w)))
1569 return;
1570
1571 ev_start (EV_A_ (W)w, ++checkcnt);
1572 array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
1573 checks [checkcnt - 1] = w;
1574}
1575
1576void
1577ev_check_stop (EV_P_ struct ev_check *w)
1578{
1579 ev_clear_pending (EV_A_ (W)w);
1580 if (expect_false (!ev_is_active (w)))
1581 return;
1582
1583 checks [((W)w)->active - 1] = checks [--checkcnt];
1584 ev_stop (EV_A_ (W)w);
1585}
1586
1587#ifndef SA_RESTART 1642#ifndef SA_RESTART
1588# define SA_RESTART 0 1643# define SA_RESTART 0
1589#endif 1644#endif
1590 1645
1591void 1646void
1592ev_signal_start (EV_P_ struct ev_signal *w) 1647ev_signal_start (EV_P_ ev_signal *w)
1593{ 1648{
1594#if EV_MULTIPLICITY 1649#if EV_MULTIPLICITY
1595 assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 1650 assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1596#endif 1651#endif
1597 if (expect_false (ev_is_active (w))) 1652 if (expect_false (ev_is_active (w)))
1616#endif 1671#endif
1617 } 1672 }
1618} 1673}
1619 1674
1620void 1675void
1621ev_signal_stop (EV_P_ struct ev_signal *w) 1676ev_signal_stop (EV_P_ ev_signal *w)
1622{ 1677{
1623 ev_clear_pending (EV_A_ (W)w); 1678 ev_clear_pending (EV_A_ (W)w);
1624 if (expect_false (!ev_is_active (w))) 1679 if (expect_false (!ev_is_active (w)))
1625 return; 1680 return;
1626 1681
1630 if (!signals [w->signum - 1].head) 1685 if (!signals [w->signum - 1].head)
1631 signal (w->signum, SIG_DFL); 1686 signal (w->signum, SIG_DFL);
1632} 1687}
1633 1688
1634void 1689void
1635ev_child_start (EV_P_ struct ev_child *w) 1690ev_child_start (EV_P_ ev_child *w)
1636{ 1691{
1637#if EV_MULTIPLICITY 1692#if EV_MULTIPLICITY
1638 assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 1693 assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1639#endif 1694#endif
1640 if (expect_false (ev_is_active (w))) 1695 if (expect_false (ev_is_active (w)))
1641 return; 1696 return;
1642 1697
1643 ev_start (EV_A_ (W)w, 1); 1698 ev_start (EV_A_ (W)w, 1);
1644 wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1699 wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1645} 1700}
1646 1701
1647void 1702void
1648ev_child_stop (EV_P_ struct ev_child *w) 1703ev_child_stop (EV_P_ ev_child *w)
1649{ 1704{
1650 ev_clear_pending (EV_A_ (W)w); 1705 ev_clear_pending (EV_A_ (W)w);
1651 if (expect_false (!ev_is_active (w))) 1706 if (expect_false (!ev_is_active (w)))
1652 return; 1707 return;
1653 1708
1654 wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1709 wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1655 ev_stop (EV_A_ (W)w); 1710 ev_stop (EV_A_ (W)w);
1656} 1711}
1657 1712
1713#if EV_STAT_ENABLE
1714
1715# ifdef _WIN32
1716# undef lstat
1717# define lstat(a,b) _stati64 (a,b)
1718# endif
1719
1720#define DEF_STAT_INTERVAL 5.0074891
1721#define MIN_STAT_INTERVAL 0.1074891
1722
1723void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
1724
1725#if EV_USE_INOTIFY
1726# define EV_INOTIFY_BUFSIZE 8192
1727
1728static void noinline
1729infy_add (EV_P_ ev_stat *w)
1730{
1731 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);
1732
1733 if (w->wd < 0)
1734 {
1735 ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
1736
1737 /* monitor some parent directory for speedup hints */
1738 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
1739 {
1740 char path [4096];
1741 strcpy (path, w->path);
1742
1743 do
1744 {
1745 int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF
1746 | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);
1747
1748 char *pend = strrchr (path, '/');
1749
1750 if (!pend)
1751 break; /* whoops, no '/', complain to your admin */
1752
1753 *pend = 0;
1754 w->wd = inotify_add_watch (fs_fd, path, mask);
1755 }
1756 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
1757 }
1758 }
1759 else
1760 ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */
1761
1762 if (w->wd >= 0)
1763 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
1764}
1765
1766static void noinline
1767infy_del (EV_P_ ev_stat *w)
1768{
1769 int slot;
1770 int wd = w->wd;
1771
1772 if (wd < 0)
1773 return;
1774
1775 w->wd = -2;
1776 slot = wd & (EV_INOTIFY_HASHSIZE - 1);
1777 wlist_del (&fs_hash [slot].head, (WL)w);
1778
1779 /* remove this watcher, if others are watching it, they will rearm */
1780 inotify_rm_watch (fs_fd, wd);
1781}
1782
1783static void noinline
1784infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
1785{
1786 if (slot < 0)
1787 /* overflow, need to check for all hahs slots */
1788 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
1789 infy_wd (EV_A_ slot, wd, ev);
1790 else
1791 {
1792 WL w_;
1793
1794 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; )
1795 {
1796 ev_stat *w = (ev_stat *)w_;
1797 w_ = w_->next; /* lets us remove this watcher and all before it */
1798
1799 if (w->wd == wd || wd == -1)
1800 {
1801 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
1802 {
1803 w->wd = -1;
1804 infy_add (EV_A_ w); /* re-add, no matter what */
1805 }
1806
1807 stat_timer_cb (EV_A_ &w->timer, 0);
1808 }
1809 }
1810 }
1811}
1812
1813static void
1814infy_cb (EV_P_ ev_io *w, int revents)
1815{
1816 char buf [EV_INOTIFY_BUFSIZE];
1817 struct inotify_event *ev = (struct inotify_event *)buf;
1818 int ofs;
1819 int len = read (fs_fd, buf, sizeof (buf));
1820
1821 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)
1822 infy_wd (EV_A_ ev->wd, ev->wd, ev);
1823}
1824
1825void inline_size
1826infy_init (EV_P)
1827{
1828 if (fs_fd != -2)
1829 return;
1830
1831 fs_fd = inotify_init ();
1832
1833 if (fs_fd >= 0)
1834 {
1835 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
1836 ev_set_priority (&fs_w, EV_MAXPRI);
1837 ev_io_start (EV_A_ &fs_w);
1838 }
1839}
1840
1841void inline_size
1842infy_fork (EV_P)
1843{
1844 int slot;
1845
1846 if (fs_fd < 0)
1847 return;
1848
1849 close (fs_fd);
1850 fs_fd = inotify_init ();
1851
1852 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
1853 {
1854 WL w_ = fs_hash [slot].head;
1855 fs_hash [slot].head = 0;
1856
1857 while (w_)
1858 {
1859 ev_stat *w = (ev_stat *)w_;
1860 w_ = w_->next; /* lets us add this watcher */
1861
1862 w->wd = -1;
1863
1864 if (fs_fd >= 0)
1865 infy_add (EV_A_ w); /* re-add, no matter what */
1866 else
1867 ev_timer_start (EV_A_ &w->timer);
1868 }
1869
1870 }
1871}
1872
1873#endif
1874
1875void
1876ev_stat_stat (EV_P_ ev_stat *w)
1877{
1878 if (lstat (w->path, &w->attr) < 0)
1879 w->attr.st_nlink = 0;
1880 else if (!w->attr.st_nlink)
1881 w->attr.st_nlink = 1;
1882}
1883
1884void noinline
1885stat_timer_cb (EV_P_ ev_timer *w_, int revents)
1886{
1887 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
1888
1889 /* we copy this here each the time so that */
1890 /* prev has the old value when the callback gets invoked */
1891 w->prev = w->attr;
1892 ev_stat_stat (EV_A_ w);
1893
1894 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
1895 if (
1896 w->prev.st_dev != w->attr.st_dev
1897 || w->prev.st_ino != w->attr.st_ino
1898 || w->prev.st_mode != w->attr.st_mode
1899 || w->prev.st_nlink != w->attr.st_nlink
1900 || w->prev.st_uid != w->attr.st_uid
1901 || w->prev.st_gid != w->attr.st_gid
1902 || w->prev.st_rdev != w->attr.st_rdev
1903 || w->prev.st_size != w->attr.st_size
1904 || w->prev.st_atime != w->attr.st_atime
1905 || w->prev.st_mtime != w->attr.st_mtime
1906 || w->prev.st_ctime != w->attr.st_ctime
1907 ) {
1908 #if EV_USE_INOTIFY
1909 infy_del (EV_A_ w);
1910 infy_add (EV_A_ w);
1911 ev_stat_stat (EV_A_ w); /* avoid race... */
1912 #endif
1913
1914 ev_feed_event (EV_A_ w, EV_STAT);
1915 }
1916}
1917
1918void
1919ev_stat_start (EV_P_ ev_stat *w)
1920{
1921 if (expect_false (ev_is_active (w)))
1922 return;
1923
1924 /* since we use memcmp, we need to clear any padding data etc. */
1925 memset (&w->prev, 0, sizeof (ev_statdata));
1926 memset (&w->attr, 0, sizeof (ev_statdata));
1927
1928 ev_stat_stat (EV_A_ w);
1929
1930 if (w->interval < MIN_STAT_INTERVAL)
1931 w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
1932
1933 ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);
1934 ev_set_priority (&w->timer, ev_priority (w));
1935
1936#if EV_USE_INOTIFY
1937 infy_init (EV_A);
1938
1939 if (fs_fd >= 0)
1940 infy_add (EV_A_ w);
1941 else
1942#endif
1943 ev_timer_start (EV_A_ &w->timer);
1944
1945 ev_start (EV_A_ (W)w, 1);
1946}
1947
1948void
1949ev_stat_stop (EV_P_ ev_stat *w)
1950{
1951 ev_clear_pending (EV_A_ (W)w);
1952 if (expect_false (!ev_is_active (w)))
1953 return;
1954
1955#if EV_USE_INOTIFY
1956 infy_del (EV_A_ w);
1957#endif
1958 ev_timer_stop (EV_A_ &w->timer);
1959
1960 ev_stop (EV_A_ (W)w);
1961}
1962#endif
1963
1964void
1965ev_idle_start (EV_P_ ev_idle *w)
1966{
1967 if (expect_false (ev_is_active (w)))
1968 return;
1969
1970 ev_start (EV_A_ (W)w, ++idlecnt);
1971 array_needsize (ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1972 idles [idlecnt - 1] = w;
1973}
1974
1975void
1976ev_idle_stop (EV_P_ ev_idle *w)
1977{
1978 ev_clear_pending (EV_A_ (W)w);
1979 if (expect_false (!ev_is_active (w)))
1980 return;
1981
1982 {
1983 int active = ((W)w)->active;
1984 idles [active - 1] = idles [--idlecnt];
1985 ((W)idles [active - 1])->active = active;
1986 }
1987
1988 ev_stop (EV_A_ (W)w);
1989}
1990
1991void
1992ev_prepare_start (EV_P_ ev_prepare *w)
1993{
1994 if (expect_false (ev_is_active (w)))
1995 return;
1996
1997 ev_start (EV_A_ (W)w, ++preparecnt);
1998 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1999 prepares [preparecnt - 1] = w;
2000}
2001
2002void
2003ev_prepare_stop (EV_P_ ev_prepare *w)
2004{
2005 ev_clear_pending (EV_A_ (W)w);
2006 if (expect_false (!ev_is_active (w)))
2007 return;
2008
2009 {
2010 int active = ((W)w)->active;
2011 prepares [active - 1] = prepares [--preparecnt];
2012 ((W)prepares [active - 1])->active = active;
2013 }
2014
2015 ev_stop (EV_A_ (W)w);
2016}
2017
2018void
2019ev_check_start (EV_P_ ev_check *w)
2020{
2021 if (expect_false (ev_is_active (w)))
2022 return;
2023
2024 ev_start (EV_A_ (W)w, ++checkcnt);
2025 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
2026 checks [checkcnt - 1] = w;
2027}
2028
2029void
2030ev_check_stop (EV_P_ ev_check *w)
2031{
2032 ev_clear_pending (EV_A_ (W)w);
2033 if (expect_false (!ev_is_active (w)))
2034 return;
2035
2036 {
2037 int active = ((W)w)->active;
2038 checks [active - 1] = checks [--checkcnt];
2039 ((W)checks [active - 1])->active = active;
2040 }
2041
2042 ev_stop (EV_A_ (W)w);
2043}
2044
2045#if EV_EMBED_ENABLE
2046void noinline
2047ev_embed_sweep (EV_P_ ev_embed *w)
2048{
2049 ev_loop (w->loop, EVLOOP_NONBLOCK);
2050}
2051
2052static void
2053embed_cb (EV_P_ ev_io *io, int revents)
2054{
2055 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
2056
2057 if (ev_cb (w))
2058 ev_feed_event (EV_A_ (W)w, EV_EMBED);
2059 else
2060 ev_embed_sweep (loop, w);
2061}
2062
2063void
2064ev_embed_start (EV_P_ ev_embed *w)
2065{
2066 if (expect_false (ev_is_active (w)))
2067 return;
2068
2069 {
2070 struct ev_loop *loop = w->loop;
2071 assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2072 ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);
2073 }
2074
2075 ev_set_priority (&w->io, ev_priority (w));
2076 ev_io_start (EV_A_ &w->io);
2077
2078 ev_start (EV_A_ (W)w, 1);
2079}
2080
2081void
2082ev_embed_stop (EV_P_ ev_embed *w)
2083{
2084 ev_clear_pending (EV_A_ (W)w);
2085 if (expect_false (!ev_is_active (w)))
2086 return;
2087
2088 ev_io_stop (EV_A_ &w->io);
2089
2090 ev_stop (EV_A_ (W)w);
2091}
2092#endif
2093
2094#if EV_FORK_ENABLE
2095void
2096ev_fork_start (EV_P_ ev_fork *w)
2097{
2098 if (expect_false (ev_is_active (w)))
2099 return;
2100
2101 ev_start (EV_A_ (W)w, ++forkcnt);
2102 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);
2103 forks [forkcnt - 1] = w;
2104}
2105
2106void
2107ev_fork_stop (EV_P_ ev_fork *w)
2108{
2109 ev_clear_pending (EV_A_ (W)w);
2110 if (expect_false (!ev_is_active (w)))
2111 return;
2112
2113 {
2114 int active = ((W)w)->active;
2115 forks [active - 1] = forks [--forkcnt];
2116 ((W)forks [active - 1])->active = active;
2117 }
2118
2119 ev_stop (EV_A_ (W)w);
2120}
2121#endif
2122
1658/*****************************************************************************/ 2123/*****************************************************************************/
1659 2124
1660struct ev_once 2125struct ev_once
1661{ 2126{
1662 struct ev_io io; 2127 ev_io io;
1663 struct ev_timer to; 2128 ev_timer to;
1664 void (*cb)(int revents, void *arg); 2129 void (*cb)(int revents, void *arg);
1665 void *arg; 2130 void *arg;
1666}; 2131};
1667 2132
1668static void 2133static void
1677 2142
1678 cb (revents, arg); 2143 cb (revents, arg);
1679} 2144}
1680 2145
1681static void 2146static void
1682once_cb_io (EV_P_ struct ev_io *w, int revents) 2147once_cb_io (EV_P_ ev_io *w, int revents)
1683{ 2148{
1684 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); 2149 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents);
1685} 2150}
1686 2151
1687static void 2152static void
1688once_cb_to (EV_P_ struct ev_timer *w, int revents) 2153once_cb_to (EV_P_ ev_timer *w, int revents)
1689{ 2154{
1690 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); 2155 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents);
1691} 2156}
1692 2157
1693void 2158void

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