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Comparing libev/ev.c (file contents):
Revision 1.133 by root, Fri Nov 23 11:32:22 2007 UTC vs.
Revision 1.158 by root, Thu Nov 29 17:28:13 2007 UTC

94# else 94# else
95# define EV_USE_PORT 0 95# define EV_USE_PORT 0
96# endif 96# endif
97# endif 97# endif
98 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
99#endif 107#endif
100 108
101#include <math.h> 109#include <math.h>
102#include <stdlib.h> 110#include <stdlib.h>
103#include <fcntl.h> 111#include <fcntl.h>
110#include <sys/types.h> 118#include <sys/types.h>
111#include <time.h> 119#include <time.h>
112 120
113#include <signal.h> 121#include <signal.h>
114 122
123#ifdef EV_H
124# include EV_H
125#else
126# include "ev.h"
127#endif
128
115#ifndef _WIN32 129#ifndef _WIN32
116# include <unistd.h>
117# include <sys/time.h> 130# include <sys/time.h>
118# include <sys/wait.h> 131# include <sys/wait.h>
132# include <unistd.h>
119#else 133#else
120# define WIN32_LEAN_AND_MEAN 134# define WIN32_LEAN_AND_MEAN
121# include <windows.h> 135# include <windows.h>
122# ifndef EV_SELECT_IS_WINSOCKET 136# ifndef EV_SELECT_IS_WINSOCKET
123# define EV_SELECT_IS_WINSOCKET 1 137# define EV_SELECT_IS_WINSOCKET 1
156 170
157#ifndef EV_USE_PORT 171#ifndef EV_USE_PORT
158# define EV_USE_PORT 0 172# define EV_USE_PORT 0
159#endif 173#endif
160 174
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
161/**/ 195/**/
162 196
163#ifndef CLOCK_MONOTONIC 197#ifndef CLOCK_MONOTONIC
164# undef EV_USE_MONOTONIC 198# undef EV_USE_MONOTONIC
165# define EV_USE_MONOTONIC 0 199# define EV_USE_MONOTONIC 0
172 206
173#if EV_SELECT_IS_WINSOCKET 207#if EV_SELECT_IS_WINSOCKET
174# include <winsock.h> 208# include <winsock.h>
175#endif 209#endif
176 210
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
177/**/ 219/**/
178 220
179#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) */
180#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) */
181#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
182/*#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 */
183
184#ifdef EV_H
185# include EV_H
186#else
187# include "ev.h"
188#endif
189 224
190#if __GNUC__ >= 3 225#if __GNUC__ >= 3
191# 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
192# define inline static inline 233# define inline_speed static inline
234# endif
193#else 235#else
194# define expect(expr,value) (expr) 236# define expect(expr,value) (expr)
237# define inline_speed static
195# define inline static 238# define inline_size static
239# define noinline
196#endif 240#endif
197 241
198#define expect_false(expr) expect ((expr) != 0, 0) 242#define expect_false(expr) expect ((expr) != 0, 0)
199#define expect_true(expr) expect ((expr) != 0, 1) 243#define expect_true(expr) expect ((expr) != 0, 1)
200 244
202#define ABSPRI(w) ((w)->priority - EV_MINPRI) 246#define ABSPRI(w) ((w)->priority - EV_MINPRI)
203 247
204#define EMPTY0 /* required for microsofts broken pseudo-c compiler */ 248#define EMPTY0 /* required for microsofts broken pseudo-c compiler */
205#define EMPTY2(a,b) /* used to suppress some warnings */ 249#define EMPTY2(a,b) /* used to suppress some warnings */
206 250
207typedef struct ev_watcher *W; 251typedef ev_watcher *W;
208typedef struct ev_watcher_list *WL; 252typedef ev_watcher_list *WL;
209typedef struct ev_watcher_time *WT; 253typedef ev_watcher_time *WT;
210 254
211static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 255static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
212 256
213#ifdef _WIN32 257#ifdef _WIN32
214# include "ev_win32.c" 258# include "ev_win32.c"
216 260
217/*****************************************************************************/ 261/*****************************************************************************/
218 262
219static void (*syserr_cb)(const char *msg); 263static void (*syserr_cb)(const char *msg);
220 264
265void
221void ev_set_syserr_cb (void (*cb)(const char *msg)) 266ev_set_syserr_cb (void (*cb)(const char *msg))
222{ 267{
223 syserr_cb = cb; 268 syserr_cb = cb;
224} 269}
225 270
226static void 271static void noinline
227syserr (const char *msg) 272syserr (const char *msg)
228{ 273{
229 if (!msg) 274 if (!msg)
230 msg = "(libev) system error"; 275 msg = "(libev) system error";
231 276
238 } 283 }
239} 284}
240 285
241static void *(*alloc)(void *ptr, long size); 286static void *(*alloc)(void *ptr, long size);
242 287
288void
243void ev_set_allocator (void *(*cb)(void *ptr, long size)) 289ev_set_allocator (void *(*cb)(void *ptr, long size))
244{ 290{
245 alloc = cb; 291 alloc = cb;
246} 292}
247 293
248static void * 294inline_speed void *
249ev_realloc (void *ptr, long size) 295ev_realloc (void *ptr, long size)
250{ 296{
251 ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); 297 ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
252 298
253 if (!ptr && size) 299 if (!ptr && size)
277typedef struct 323typedef struct
278{ 324{
279 W w; 325 W w;
280 int events; 326 int events;
281} ANPENDING; 327} ANPENDING;
328
329#if EV_USE_INOTIFY
330typedef struct
331{
332 WL head;
333} ANFS;
334#endif
282 335
283#if EV_MULTIPLICITY 336#if EV_MULTIPLICITY
284 337
285 struct ev_loop 338 struct ev_loop
286 { 339 {
320 gettimeofday (&tv, 0); 373 gettimeofday (&tv, 0);
321 return tv.tv_sec + tv.tv_usec * 1e-6; 374 return tv.tv_sec + tv.tv_usec * 1e-6;
322#endif 375#endif
323} 376}
324 377
325inline ev_tstamp 378ev_tstamp inline_size
326get_clock (void) 379get_clock (void)
327{ 380{
328#if EV_USE_MONOTONIC 381#if EV_USE_MONOTONIC
329 if (expect_true (have_monotonic)) 382 if (expect_true (have_monotonic))
330 { 383 {
373#define array_free(stem, idx) \ 426#define array_free(stem, idx) \
374 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;
375 428
376/*****************************************************************************/ 429/*****************************************************************************/
377 430
378static void 431void noinline
379anfds_init (ANFD *base, int count)
380{
381 while (count--)
382 {
383 base->head = 0;
384 base->events = EV_NONE;
385 base->reify = 0;
386
387 ++base;
388 }
389}
390
391void
392ev_feed_event (EV_P_ void *w, int revents) 432ev_feed_event (EV_P_ void *w, int revents)
393{ 433{
394 W w_ = (W)w; 434 W w_ = (W)w;
395 435
396 if (expect_false (w_->pending)) 436 if (expect_false (w_->pending))
403 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);
404 pendings [ABSPRI (w_)][w_->pending - 1].w = w_; 444 pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
405 pendings [ABSPRI (w_)][w_->pending - 1].events = revents; 445 pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
406} 446}
407 447
408static void 448void inline_size
409queue_events (EV_P_ W *events, int eventcnt, int type) 449queue_events (EV_P_ W *events, int eventcnt, int type)
410{ 450{
411 int i; 451 int i;
412 452
413 for (i = 0; i < eventcnt; ++i) 453 for (i = 0; i < eventcnt; ++i)
414 ev_feed_event (EV_A_ events [i], type); 454 ev_feed_event (EV_A_ events [i], type);
415} 455}
416 456
417inline 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
418fd_event (EV_P_ int fd, int revents) 473fd_event (EV_P_ int fd, int revents)
419{ 474{
420 ANFD *anfd = anfds + fd; 475 ANFD *anfd = anfds + fd;
421 struct ev_io *w; 476 ev_io *w;
422 477
423 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)
424 { 479 {
425 int ev = w->events & revents; 480 int ev = w->events & revents;
426 481
427 if (ev) 482 if (ev)
428 ev_feed_event (EV_A_ (W)w, ev); 483 ev_feed_event (EV_A_ (W)w, ev);
433ev_feed_fd_event (EV_P_ int fd, int revents) 488ev_feed_fd_event (EV_P_ int fd, int revents)
434{ 489{
435 fd_event (EV_A_ fd, revents); 490 fd_event (EV_A_ fd, revents);
436} 491}
437 492
438/*****************************************************************************/ 493void inline_size
439
440inline void
441fd_reify (EV_P) 494fd_reify (EV_P)
442{ 495{
443 int i; 496 int i;
444 497
445 for (i = 0; i < fdchangecnt; ++i) 498 for (i = 0; i < fdchangecnt; ++i)
446 { 499 {
447 int fd = fdchanges [i]; 500 int fd = fdchanges [i];
448 ANFD *anfd = anfds + fd; 501 ANFD *anfd = anfds + fd;
449 struct ev_io *w; 502 ev_io *w;
450 503
451 int events = 0; 504 int events = 0;
452 505
453 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)
454 events |= w->events; 507 events |= w->events;
455 508
456#if EV_SELECT_IS_WINSOCKET 509#if EV_SELECT_IS_WINSOCKET
457 if (events) 510 if (events)
458 { 511 {
469 } 522 }
470 523
471 fdchangecnt = 0; 524 fdchangecnt = 0;
472} 525}
473 526
474static void 527void inline_size
475fd_change (EV_P_ int fd) 528fd_change (EV_P_ int fd)
476{ 529{
477 if (expect_false (anfds [fd].reify)) 530 if (expect_false (anfds [fd].reify))
478 return; 531 return;
479 532
482 ++fdchangecnt; 535 ++fdchangecnt;
483 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 536 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
484 fdchanges [fdchangecnt - 1] = fd; 537 fdchanges [fdchangecnt - 1] = fd;
485} 538}
486 539
487static void 540void inline_speed
488fd_kill (EV_P_ int fd) 541fd_kill (EV_P_ int fd)
489{ 542{
490 struct ev_io *w; 543 ev_io *w;
491 544
492 while ((w = (struct ev_io *)anfds [fd].head)) 545 while ((w = (ev_io *)anfds [fd].head))
493 { 546 {
494 ev_io_stop (EV_A_ w); 547 ev_io_stop (EV_A_ w);
495 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);
496 } 549 }
497} 550}
498 551
499inline int 552int inline_size
500fd_valid (int fd) 553fd_valid (int fd)
501{ 554{
502#ifdef _WIN32 555#ifdef _WIN32
503 return _get_osfhandle (fd) != -1; 556 return _get_osfhandle (fd) != -1;
504#else 557#else
505 return fcntl (fd, F_GETFD) != -1; 558 return fcntl (fd, F_GETFD) != -1;
506#endif 559#endif
507} 560}
508 561
509/* called on EBADF to verify fds */ 562/* called on EBADF to verify fds */
510static void 563static void noinline
511fd_ebadf (EV_P) 564fd_ebadf (EV_P)
512{ 565{
513 int fd; 566 int fd;
514 567
515 for (fd = 0; fd < anfdmax; ++fd) 568 for (fd = 0; fd < anfdmax; ++fd)
517 if (!fd_valid (fd) == -1 && errno == EBADF) 570 if (!fd_valid (fd) == -1 && errno == EBADF)
518 fd_kill (EV_A_ fd); 571 fd_kill (EV_A_ fd);
519} 572}
520 573
521/* 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 */
522static void 575static void noinline
523fd_enomem (EV_P) 576fd_enomem (EV_P)
524{ 577{
525 int fd; 578 int fd;
526 579
527 for (fd = anfdmax; fd--; ) 580 for (fd = anfdmax; fd--; )
531 return; 584 return;
532 } 585 }
533} 586}
534 587
535/* usually called after fork if backend needs to re-arm all fds from scratch */ 588/* usually called after fork if backend needs to re-arm all fds from scratch */
536static void 589static void noinline
537fd_rearm_all (EV_P) 590fd_rearm_all (EV_P)
538{ 591{
539 int fd; 592 int fd;
540 593
541 /* this should be highly optimised to not do anything but set a flag */
542 for (fd = 0; fd < anfdmax; ++fd) 594 for (fd = 0; fd < anfdmax; ++fd)
543 if (anfds [fd].events) 595 if (anfds [fd].events)
544 { 596 {
545 anfds [fd].events = 0; 597 anfds [fd].events = 0;
546 fd_change (EV_A_ fd); 598 fd_change (EV_A_ fd);
547 } 599 }
548} 600}
549 601
550/*****************************************************************************/ 602/*****************************************************************************/
551 603
552static void 604void inline_speed
553upheap (WT *heap, int k) 605upheap (WT *heap, int k)
554{ 606{
555 WT w = heap [k]; 607 WT w = heap [k];
556 608
557 while (k && heap [k >> 1]->at > w->at) 609 while (k && heap [k >> 1]->at > w->at)
564 heap [k] = w; 616 heap [k] = w;
565 ((W)heap [k])->active = k + 1; 617 ((W)heap [k])->active = k + 1;
566 618
567} 619}
568 620
569static void 621void inline_speed
570downheap (WT *heap, int N, int k) 622downheap (WT *heap, int N, int k)
571{ 623{
572 WT w = heap [k]; 624 WT w = heap [k];
573 625
574 while (k < (N >> 1)) 626 while (k < (N >> 1))
588 640
589 heap [k] = w; 641 heap [k] = w;
590 ((W)heap [k])->active = k + 1; 642 ((W)heap [k])->active = k + 1;
591} 643}
592 644
593inline void 645void inline_size
594adjustheap (WT *heap, int N, int k) 646adjustheap (WT *heap, int N, int k)
595{ 647{
596 upheap (heap, k); 648 upheap (heap, k);
597 downheap (heap, N, k); 649 downheap (heap, N, k);
598} 650}
608static ANSIG *signals; 660static ANSIG *signals;
609static int signalmax; 661static int signalmax;
610 662
611static int sigpipe [2]; 663static int sigpipe [2];
612static sig_atomic_t volatile gotsig; 664static sig_atomic_t volatile gotsig;
613static struct ev_io sigev; 665static ev_io sigev;
614 666
615static void 667void inline_size
616signals_init (ANSIG *base, int count) 668signals_init (ANSIG *base, int count)
617{ 669{
618 while (count--) 670 while (count--)
619 { 671 {
620 base->head = 0; 672 base->head = 0;
640 write (sigpipe [1], &signum, 1); 692 write (sigpipe [1], &signum, 1);
641 errno = old_errno; 693 errno = old_errno;
642 } 694 }
643} 695}
644 696
645void 697void noinline
646ev_feed_signal_event (EV_P_ int signum) 698ev_feed_signal_event (EV_P_ int signum)
647{ 699{
648 WL w; 700 WL w;
649 701
650#if EV_MULTIPLICITY 702#if EV_MULTIPLICITY
661 for (w = signals [signum].head; w; w = w->next) 713 for (w = signals [signum].head; w; w = w->next)
662 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 714 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
663} 715}
664 716
665static void 717static void
666sigcb (EV_P_ struct ev_io *iow, int revents) 718sigcb (EV_P_ ev_io *iow, int revents)
667{ 719{
668 int signum; 720 int signum;
669 721
670 read (sigpipe [0], &revents, 1); 722 read (sigpipe [0], &revents, 1);
671 gotsig = 0; 723 gotsig = 0;
673 for (signum = signalmax; signum--; ) 725 for (signum = signalmax; signum--; )
674 if (signals [signum].gotsig) 726 if (signals [signum].gotsig)
675 ev_feed_signal_event (EV_A_ signum + 1); 727 ev_feed_signal_event (EV_A_ signum + 1);
676} 728}
677 729
678static void 730void inline_size
679fd_intern (int fd) 731fd_intern (int fd)
680{ 732{
681#ifdef _WIN32 733#ifdef _WIN32
682 int arg = 1; 734 int arg = 1;
683 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); 735 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
685 fcntl (fd, F_SETFD, FD_CLOEXEC); 737 fcntl (fd, F_SETFD, FD_CLOEXEC);
686 fcntl (fd, F_SETFL, O_NONBLOCK); 738 fcntl (fd, F_SETFL, O_NONBLOCK);
687#endif 739#endif
688} 740}
689 741
690static void 742static void noinline
691siginit (EV_P) 743siginit (EV_P)
692{ 744{
693 fd_intern (sigpipe [0]); 745 fd_intern (sigpipe [0]);
694 fd_intern (sigpipe [1]); 746 fd_intern (sigpipe [1]);
695 747
698 ev_unref (EV_A); /* child watcher should not keep loop alive */ 750 ev_unref (EV_A); /* child watcher should not keep loop alive */
699} 751}
700 752
701/*****************************************************************************/ 753/*****************************************************************************/
702 754
703static struct ev_child *childs [PID_HASHSIZE]; 755static ev_child *childs [EV_PID_HASHSIZE];
704 756
705#ifndef _WIN32 757#ifndef _WIN32
706 758
707static struct ev_signal childev; 759static ev_signal childev;
708 760
709#ifndef WCONTINUED 761void inline_speed
710# define WCONTINUED 0
711#endif
712
713static void
714child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status) 762child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)
715{ 763{
716 struct ev_child *w; 764 ev_child *w;
717 765
718 for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next) 766 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
719 if (w->pid == pid || !w->pid) 767 if (w->pid == pid || !w->pid)
720 { 768 {
721 ev_priority (w) = ev_priority (sw); /* need to do it *now* */ 769 ev_priority (w) = ev_priority (sw); /* need to do it *now* */
722 w->rpid = pid; 770 w->rpid = pid;
723 w->rstatus = status; 771 w->rstatus = status;
724 ev_feed_event (EV_A_ (W)w, EV_CHILD); 772 ev_feed_event (EV_A_ (W)w, EV_CHILD);
725 } 773 }
726} 774}
727 775
776#ifndef WCONTINUED
777# define WCONTINUED 0
778#endif
779
728static void 780static void
729childcb (EV_P_ struct ev_signal *sw, int revents) 781childcb (EV_P_ ev_signal *sw, int revents)
730{ 782{
731 int pid, status; 783 int pid, status;
732 784
785 /* some systems define WCONTINUED but then fail to support it (linux 2.4) */
733 if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) 786 if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))
734 { 787 if (!WCONTINUED
788 || errno != EINVAL
789 || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED)))
790 return;
791
735 /* make sure we are called again until all childs have been reaped */ 792 /* make sure we are called again until all childs have been reaped */
736 /* we need to do it this way so that the callback gets called before we continue */ 793 /* we need to do it this way so that the callback gets called before we continue */
737 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 794 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
738 795
739 child_reap (EV_A_ sw, pid, pid, status); 796 child_reap (EV_A_ sw, pid, pid, status);
797 if (EV_PID_HASHSIZE > 1)
740 child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 798 child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
741 }
742} 799}
743 800
744#endif 801#endif
745 802
746/*****************************************************************************/ 803/*****************************************************************************/
772{ 829{
773 return EV_VERSION_MINOR; 830 return EV_VERSION_MINOR;
774} 831}
775 832
776/* return true if we are running with elevated privileges and should ignore env variables */ 833/* return true if we are running with elevated privileges and should ignore env variables */
777static int 834int inline_size
778enable_secure (void) 835enable_secure (void)
779{ 836{
780#ifdef _WIN32 837#ifdef _WIN32
781 return 0; 838 return 0;
782#else 839#else
816 873
817 return flags; 874 return flags;
818} 875}
819 876
820unsigned int 877unsigned int
878ev_embeddable_backends (void)
879{
880 return EVBACKEND_EPOLL
881 | EVBACKEND_KQUEUE
882 | EVBACKEND_PORT;
883}
884
885unsigned int
821ev_backend (EV_P) 886ev_backend (EV_P)
822{ 887{
823 return backend; 888 return backend;
824} 889}
825 890
826static void 891static void noinline
827loop_init (EV_P_ unsigned int flags) 892loop_init (EV_P_ unsigned int flags)
828{ 893{
829 if (!backend) 894 if (!backend)
830 { 895 {
831#if EV_USE_MONOTONIC 896#if EV_USE_MONOTONIC
839 ev_rt_now = ev_time (); 904 ev_rt_now = ev_time ();
840 mn_now = get_clock (); 905 mn_now = get_clock ();
841 now_floor = mn_now; 906 now_floor = mn_now;
842 rtmn_diff = ev_rt_now - mn_now; 907 rtmn_diff = ev_rt_now - mn_now;
843 908
909 /* pid check not overridable via env */
910#ifndef _WIN32
911 if (flags & EVFLAG_FORKCHECK)
912 curpid = getpid ();
913#endif
914
844 if (!(flags & EVFLAG_NOENV) 915 if (!(flags & EVFLAG_NOENV)
845 && !enable_secure () 916 && !enable_secure ()
846 && getenv ("LIBEV_FLAGS")) 917 && getenv ("LIBEV_FLAGS"))
847 flags = atoi (getenv ("LIBEV_FLAGS")); 918 flags = atoi (getenv ("LIBEV_FLAGS"));
848 919
849 if (!(flags & 0x0000ffffUL)) 920 if (!(flags & 0x0000ffffUL))
850 flags |= ev_recommended_backends (); 921 flags |= ev_recommended_backends ();
851 922
852 backend = 0; 923 backend = 0;
924 backend_fd = -1;
925#if EV_USE_INOTIFY
926 fs_fd = -2;
927#endif
928
853#if EV_USE_PORT 929#if EV_USE_PORT
854 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 930 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
855#endif 931#endif
856#if EV_USE_KQUEUE 932#if EV_USE_KQUEUE
857 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 933 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
869 ev_init (&sigev, sigcb); 945 ev_init (&sigev, sigcb);
870 ev_set_priority (&sigev, EV_MAXPRI); 946 ev_set_priority (&sigev, EV_MAXPRI);
871 } 947 }
872} 948}
873 949
874static void 950static void noinline
875loop_destroy (EV_P) 951loop_destroy (EV_P)
876{ 952{
877 int i; 953 int i;
954
955#if EV_USE_INOTIFY
956 if (fs_fd >= 0)
957 close (fs_fd);
958#endif
959
960 if (backend_fd >= 0)
961 close (backend_fd);
878 962
879#if EV_USE_PORT 963#if EV_USE_PORT
880 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 964 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
881#endif 965#endif
882#if EV_USE_KQUEUE 966#if EV_USE_KQUEUE
896 array_free (pending, [i]); 980 array_free (pending, [i]);
897 981
898 /* have to use the microsoft-never-gets-it-right macro */ 982 /* have to use the microsoft-never-gets-it-right macro */
899 array_free (fdchange, EMPTY0); 983 array_free (fdchange, EMPTY0);
900 array_free (timer, EMPTY0); 984 array_free (timer, EMPTY0);
901#if EV_PERIODICS 985#if EV_PERIODIC_ENABLE
902 array_free (periodic, EMPTY0); 986 array_free (periodic, EMPTY0);
903#endif 987#endif
904 array_free (idle, EMPTY0); 988 array_free (idle, EMPTY0);
905 array_free (prepare, EMPTY0); 989 array_free (prepare, EMPTY0);
906 array_free (check, EMPTY0); 990 array_free (check, EMPTY0);
907 991
908 backend = 0; 992 backend = 0;
909} 993}
910 994
911static void 995void inline_size infy_fork (EV_P);
996
997void inline_size
912loop_fork (EV_P) 998loop_fork (EV_P)
913{ 999{
914#if EV_USE_PORT 1000#if EV_USE_PORT
915 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 1001 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
916#endif 1002#endif
917#if EV_USE_KQUEUE 1003#if EV_USE_KQUEUE
918 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); 1004 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
919#endif 1005#endif
920#if EV_USE_EPOLL 1006#if EV_USE_EPOLL
921 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); 1007 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
1008#endif
1009#if EV_USE_INOTIFY
1010 infy_fork (EV_A);
922#endif 1011#endif
923 1012
924 if (ev_is_active (&sigev)) 1013 if (ev_is_active (&sigev))
925 { 1014 {
926 /* default loop */ 1015 /* default loop */
1042 postfork = 1; 1131 postfork = 1;
1043} 1132}
1044 1133
1045/*****************************************************************************/ 1134/*****************************************************************************/
1046 1135
1047static int 1136int inline_size
1048any_pending (EV_P) 1137any_pending (EV_P)
1049{ 1138{
1050 int pri; 1139 int pri;
1051 1140
1052 for (pri = NUMPRI; pri--; ) 1141 for (pri = NUMPRI; pri--; )
1054 return 1; 1143 return 1;
1055 1144
1056 return 0; 1145 return 0;
1057} 1146}
1058 1147
1059inline void 1148void inline_speed
1060call_pending (EV_P) 1149call_pending (EV_P)
1061{ 1150{
1062 int pri; 1151 int pri;
1063 1152
1064 for (pri = NUMPRI; pri--; ) 1153 for (pri = NUMPRI; pri--; )
1066 { 1155 {
1067 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 1156 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1068 1157
1069 if (expect_true (p->w)) 1158 if (expect_true (p->w))
1070 { 1159 {
1160 /*assert (("non-pending watcher on pending list", p->w->pending));*/
1161
1071 p->w->pending = 0; 1162 p->w->pending = 0;
1072 EV_CB_INVOKE (p->w, p->events); 1163 EV_CB_INVOKE (p->w, p->events);
1073 } 1164 }
1074 } 1165 }
1075} 1166}
1076 1167
1077inline void 1168void inline_size
1078timers_reify (EV_P) 1169timers_reify (EV_P)
1079{ 1170{
1080 while (timercnt && ((WT)timers [0])->at <= mn_now) 1171 while (timercnt && ((WT)timers [0])->at <= mn_now)
1081 { 1172 {
1082 struct ev_timer *w = timers [0]; 1173 ev_timer *w = timers [0];
1083 1174
1084 assert (("inactive timer on timer heap detected", ev_is_active (w))); 1175 /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
1085 1176
1086 /* first reschedule or stop timer */ 1177 /* first reschedule or stop timer */
1087 if (w->repeat) 1178 if (w->repeat)
1088 { 1179 {
1089 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); 1180 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1099 1190
1100 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); 1191 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
1101 } 1192 }
1102} 1193}
1103 1194
1104#if EV_PERIODICS 1195#if EV_PERIODIC_ENABLE
1105inline void 1196void inline_size
1106periodics_reify (EV_P) 1197periodics_reify (EV_P)
1107{ 1198{
1108 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) 1199 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1109 { 1200 {
1110 struct ev_periodic *w = periodics [0]; 1201 ev_periodic *w = periodics [0];
1111 1202
1112 assert (("inactive timer on periodic heap detected", ev_is_active (w))); 1203 /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
1113 1204
1114 /* first reschedule or stop timer */ 1205 /* first reschedule or stop timer */
1115 if (w->reschedule_cb) 1206 if (w->reschedule_cb)
1116 { 1207 {
1117 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); 1208 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
1129 1220
1130 ev_feed_event (EV_A_ (W)w, EV_PERIODIC); 1221 ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
1131 } 1222 }
1132} 1223}
1133 1224
1134static void 1225static void noinline
1135periodics_reschedule (EV_P) 1226periodics_reschedule (EV_P)
1136{ 1227{
1137 int i; 1228 int i;
1138 1229
1139 /* adjust periodics after time jump */ 1230 /* adjust periodics after time jump */
1140 for (i = 0; i < periodiccnt; ++i) 1231 for (i = 0; i < periodiccnt; ++i)
1141 { 1232 {
1142 struct ev_periodic *w = periodics [i]; 1233 ev_periodic *w = periodics [i];
1143 1234
1144 if (w->reschedule_cb) 1235 if (w->reschedule_cb)
1145 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); 1236 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1146 else if (w->interval) 1237 else if (w->interval)
1147 ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; 1238 ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
1151 for (i = periodiccnt >> 1; i--; ) 1242 for (i = periodiccnt >> 1; i--; )
1152 downheap ((WT *)periodics, periodiccnt, i); 1243 downheap ((WT *)periodics, periodiccnt, i);
1153} 1244}
1154#endif 1245#endif
1155 1246
1156inline int 1247int inline_size
1157time_update_monotonic (EV_P) 1248time_update_monotonic (EV_P)
1158{ 1249{
1159 mn_now = get_clock (); 1250 mn_now = get_clock ();
1160 1251
1161 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) 1252 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1169 ev_rt_now = ev_time (); 1260 ev_rt_now = ev_time ();
1170 return 1; 1261 return 1;
1171 } 1262 }
1172} 1263}
1173 1264
1174inline void 1265void inline_size
1175time_update (EV_P) 1266time_update (EV_P)
1176{ 1267{
1177 int i; 1268 int i;
1178 1269
1179#if EV_USE_MONOTONIC 1270#if EV_USE_MONOTONIC
1181 { 1272 {
1182 if (time_update_monotonic (EV_A)) 1273 if (time_update_monotonic (EV_A))
1183 { 1274 {
1184 ev_tstamp odiff = rtmn_diff; 1275 ev_tstamp odiff = rtmn_diff;
1185 1276
1186 for (i = 4; --i; ) /* loop a few times, before making important decisions */ 1277 /* loop a few times, before making important decisions.
1278 * on the choice of "4": one iteration isn't enough,
1279 * in case we get preempted during the calls to
1280 * ev_time and get_clock. a second call is almost guaranteed
1281 * to succeed in that case, though. and looping a few more times
1282 * doesn't hurt either as we only do this on time-jumps or
1283 * in the unlikely event of having been preempted here.
1284 */
1285 for (i = 4; --i; )
1187 { 1286 {
1188 rtmn_diff = ev_rt_now - mn_now; 1287 rtmn_diff = ev_rt_now - mn_now;
1189 1288
1190 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) 1289 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1191 return; /* all is well */ 1290 return; /* all is well */
1193 ev_rt_now = ev_time (); 1292 ev_rt_now = ev_time ();
1194 mn_now = get_clock (); 1293 mn_now = get_clock ();
1195 now_floor = mn_now; 1294 now_floor = mn_now;
1196 } 1295 }
1197 1296
1198# if EV_PERIODICS 1297# if EV_PERIODIC_ENABLE
1199 periodics_reschedule (EV_A); 1298 periodics_reschedule (EV_A);
1200# endif 1299# endif
1201 /* no timer adjustment, as the monotonic clock doesn't jump */ 1300 /* no timer adjustment, as the monotonic clock doesn't jump */
1202 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ 1301 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1203 } 1302 }
1207 { 1306 {
1208 ev_rt_now = ev_time (); 1307 ev_rt_now = ev_time ();
1209 1308
1210 if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) 1309 if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
1211 { 1310 {
1212#if EV_PERIODICS 1311#if EV_PERIODIC_ENABLE
1213 periodics_reschedule (EV_A); 1312 periodics_reschedule (EV_A);
1214#endif 1313#endif
1215 1314
1216 /* adjust timers. this is easy, as the offset is the same for all */ 1315 /* adjust timers. this is easy, as the offset is the same for all of them */
1217 for (i = 0; i < timercnt; ++i) 1316 for (i = 0; i < timercnt; ++i)
1218 ((WT)timers [i])->at += ev_rt_now - mn_now; 1317 ((WT)timers [i])->at += ev_rt_now - mn_now;
1219 } 1318 }
1220 1319
1221 mn_now = ev_rt_now; 1320 mn_now = ev_rt_now;
1237static int loop_done; 1336static int loop_done;
1238 1337
1239void 1338void
1240ev_loop (EV_P_ int flags) 1339ev_loop (EV_P_ int flags)
1241{ 1340{
1242 double block;
1243 loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; 1341 loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)
1342 ? EVUNLOOP_ONE
1343 : EVUNLOOP_CANCEL;
1344
1345 call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */
1244 1346
1245 while (activecnt) 1347 while (activecnt)
1246 { 1348 {
1349#ifndef _WIN32
1350 if (expect_false (curpid)) /* penalise the forking check even more */
1351 if (expect_false (getpid () != curpid))
1352 {
1353 curpid = getpid ();
1354 postfork = 1;
1355 }
1356#endif
1357
1358#if EV_FORK_ENABLE
1359 /* we might have forked, so queue fork handlers */
1360 if (expect_false (postfork))
1361 if (forkcnt)
1362 {
1363 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
1364 call_pending (EV_A);
1365 }
1366#endif
1367
1247 /* queue check watchers (and execute them) */ 1368 /* queue check watchers (and execute them) */
1248 if (expect_false (preparecnt)) 1369 if (expect_false (preparecnt))
1249 { 1370 {
1250 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 1371 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1251 call_pending (EV_A); 1372 call_pending (EV_A);
1257 1378
1258 /* update fd-related kernel structures */ 1379 /* update fd-related kernel structures */
1259 fd_reify (EV_A); 1380 fd_reify (EV_A);
1260 1381
1261 /* calculate blocking time */ 1382 /* calculate blocking time */
1383 {
1384 ev_tstamp block;
1262 1385
1263 /* we only need this for !monotonic clock or timers, but as we basically 1386 if (flags & EVLOOP_NONBLOCK || idlecnt)
1264 always have timers, we just calculate it always */ 1387 block = 0.; /* do not block at all */
1388 else
1389 {
1390 /* update time to cancel out callback processing overhead */
1265#if EV_USE_MONOTONIC 1391#if EV_USE_MONOTONIC
1266 if (expect_true (have_monotonic)) 1392 if (expect_true (have_monotonic))
1267 time_update_monotonic (EV_A); 1393 time_update_monotonic (EV_A);
1268 else 1394 else
1269#endif 1395#endif
1270 { 1396 {
1271 ev_rt_now = ev_time (); 1397 ev_rt_now = ev_time ();
1272 mn_now = ev_rt_now; 1398 mn_now = ev_rt_now;
1273 } 1399 }
1274 1400
1275 if (flags & EVLOOP_NONBLOCK || idlecnt)
1276 block = 0.;
1277 else
1278 {
1279 block = MAX_BLOCKTIME; 1401 block = MAX_BLOCKTIME;
1280 1402
1281 if (timercnt) 1403 if (timercnt)
1282 { 1404 {
1283 ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; 1405 ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1284 if (block > to) block = to; 1406 if (block > to) block = to;
1285 } 1407 }
1286 1408
1287#if EV_PERIODICS 1409#if EV_PERIODIC_ENABLE
1288 if (periodiccnt) 1410 if (periodiccnt)
1289 { 1411 {
1290 ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; 1412 ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1291 if (block > to) block = to; 1413 if (block > to) block = to;
1292 } 1414 }
1293#endif 1415#endif
1294 1416
1295 if (expect_false (block < 0.)) block = 0.; 1417 if (expect_false (block < 0.)) block = 0.;
1296 } 1418 }
1297 1419
1298 backend_poll (EV_A_ block); 1420 backend_poll (EV_A_ block);
1421 }
1299 1422
1300 /* update ev_rt_now, do magic */ 1423 /* update ev_rt_now, do magic */
1301 time_update (EV_A); 1424 time_update (EV_A);
1302 1425
1303 /* queue pending timers and reschedule them */ 1426 /* queue pending timers and reschedule them */
1304 timers_reify (EV_A); /* relative timers called last */ 1427 timers_reify (EV_A); /* relative timers called last */
1305#if EV_PERIODICS 1428#if EV_PERIODIC_ENABLE
1306 periodics_reify (EV_A); /* absolute timers called first */ 1429 periodics_reify (EV_A); /* absolute timers called first */
1307#endif 1430#endif
1308 1431
1309 /* queue idle watchers unless io or timers are pending */ 1432 /* queue idle watchers unless other events are pending */
1310 if (idlecnt && !any_pending (EV_A)) 1433 if (idlecnt && !any_pending (EV_A))
1311 queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); 1434 queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1312 1435
1313 /* queue check watchers, to be executed first */ 1436 /* queue check watchers, to be executed first */
1314 if (expect_false (checkcnt)) 1437 if (expect_false (checkcnt))
1318 1441
1319 if (expect_false (loop_done)) 1442 if (expect_false (loop_done))
1320 break; 1443 break;
1321 } 1444 }
1322 1445
1323 if (loop_done != 2) 1446 if (loop_done == EVUNLOOP_ONE)
1324 loop_done = 0; 1447 loop_done = EVUNLOOP_CANCEL;
1325} 1448}
1326 1449
1327void 1450void
1328ev_unloop (EV_P_ int how) 1451ev_unloop (EV_P_ int how)
1329{ 1452{
1330 loop_done = how; 1453 loop_done = how;
1331} 1454}
1332 1455
1333/*****************************************************************************/ 1456/*****************************************************************************/
1334 1457
1335inline void 1458void inline_size
1336wlist_add (WL *head, WL elem) 1459wlist_add (WL *head, WL elem)
1337{ 1460{
1338 elem->next = *head; 1461 elem->next = *head;
1339 *head = elem; 1462 *head = elem;
1340} 1463}
1341 1464
1342inline void 1465void inline_size
1343wlist_del (WL *head, WL elem) 1466wlist_del (WL *head, WL elem)
1344{ 1467{
1345 while (*head) 1468 while (*head)
1346 { 1469 {
1347 if (*head == elem) 1470 if (*head == elem)
1352 1475
1353 head = &(*head)->next; 1476 head = &(*head)->next;
1354 } 1477 }
1355} 1478}
1356 1479
1357inline void 1480void inline_speed
1358ev_clear_pending (EV_P_ W w) 1481ev_clear_pending (EV_P_ W w)
1359{ 1482{
1360 if (w->pending) 1483 if (w->pending)
1361 { 1484 {
1362 pendings [ABSPRI (w)][w->pending - 1].w = 0; 1485 pendings [ABSPRI (w)][w->pending - 1].w = 0;
1363 w->pending = 0; 1486 w->pending = 0;
1364 } 1487 }
1365} 1488}
1366 1489
1367inline void 1490void inline_speed
1368ev_start (EV_P_ W w, int active) 1491ev_start (EV_P_ W w, int active)
1369{ 1492{
1370 if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; 1493 if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
1371 if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; 1494 if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
1372 1495
1373 w->active = active; 1496 w->active = active;
1374 ev_ref (EV_A); 1497 ev_ref (EV_A);
1375} 1498}
1376 1499
1377inline void 1500void inline_size
1378ev_stop (EV_P_ W w) 1501ev_stop (EV_P_ W w)
1379{ 1502{
1380 ev_unref (EV_A); 1503 ev_unref (EV_A);
1381 w->active = 0; 1504 w->active = 0;
1382} 1505}
1383 1506
1384/*****************************************************************************/ 1507/*****************************************************************************/
1385 1508
1386void 1509void
1387ev_io_start (EV_P_ struct ev_io *w) 1510ev_io_start (EV_P_ ev_io *w)
1388{ 1511{
1389 int fd = w->fd; 1512 int fd = w->fd;
1390 1513
1391 if (expect_false (ev_is_active (w))) 1514 if (expect_false (ev_is_active (w)))
1392 return; 1515 return;
1399 1522
1400 fd_change (EV_A_ fd); 1523 fd_change (EV_A_ fd);
1401} 1524}
1402 1525
1403void 1526void
1404ev_io_stop (EV_P_ struct ev_io *w) 1527ev_io_stop (EV_P_ ev_io *w)
1405{ 1528{
1406 ev_clear_pending (EV_A_ (W)w); 1529 ev_clear_pending (EV_A_ (W)w);
1407 if (expect_false (!ev_is_active (w))) 1530 if (expect_false (!ev_is_active (w)))
1408 return; 1531 return;
1409 1532
1414 1537
1415 fd_change (EV_A_ w->fd); 1538 fd_change (EV_A_ w->fd);
1416} 1539}
1417 1540
1418void 1541void
1419ev_timer_start (EV_P_ struct ev_timer *w) 1542ev_timer_start (EV_P_ ev_timer *w)
1420{ 1543{
1421 if (expect_false (ev_is_active (w))) 1544 if (expect_false (ev_is_active (w)))
1422 return; 1545 return;
1423 1546
1424 ((WT)w)->at += mn_now; 1547 ((WT)w)->at += mn_now;
1425 1548
1426 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 1549 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1427 1550
1428 ev_start (EV_A_ (W)w, ++timercnt); 1551 ev_start (EV_A_ (W)w, ++timercnt);
1429 array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2); 1552 array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2);
1430 timers [timercnt - 1] = w; 1553 timers [timercnt - 1] = w;
1431 upheap ((WT *)timers, timercnt - 1); 1554 upheap ((WT *)timers, timercnt - 1);
1432 1555
1433 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); 1556 /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/
1434} 1557}
1435 1558
1436void 1559void
1437ev_timer_stop (EV_P_ struct ev_timer *w) 1560ev_timer_stop (EV_P_ ev_timer *w)
1438{ 1561{
1439 ev_clear_pending (EV_A_ (W)w); 1562 ev_clear_pending (EV_A_ (W)w);
1440 if (expect_false (!ev_is_active (w))) 1563 if (expect_false (!ev_is_active (w)))
1441 return; 1564 return;
1442 1565
1443 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); 1566 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1444 1567
1568 {
1569 int active = ((W)w)->active;
1570
1445 if (expect_true (((W)w)->active < timercnt--)) 1571 if (expect_true (--active < --timercnt))
1446 { 1572 {
1447 timers [((W)w)->active - 1] = timers [timercnt]; 1573 timers [active] = timers [timercnt];
1448 adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); 1574 adjustheap ((WT *)timers, timercnt, active);
1449 } 1575 }
1576 }
1450 1577
1451 ((WT)w)->at -= mn_now; 1578 ((WT)w)->at -= mn_now;
1452 1579
1453 ev_stop (EV_A_ (W)w); 1580 ev_stop (EV_A_ (W)w);
1454} 1581}
1455 1582
1456void 1583void
1457ev_timer_again (EV_P_ struct ev_timer *w) 1584ev_timer_again (EV_P_ ev_timer *w)
1458{ 1585{
1459 if (ev_is_active (w)) 1586 if (ev_is_active (w))
1460 { 1587 {
1461 if (w->repeat) 1588 if (w->repeat)
1462 { 1589 {
1471 w->at = w->repeat; 1598 w->at = w->repeat;
1472 ev_timer_start (EV_A_ w); 1599 ev_timer_start (EV_A_ w);
1473 } 1600 }
1474} 1601}
1475 1602
1476#if EV_PERIODICS 1603#if EV_PERIODIC_ENABLE
1477void 1604void
1478ev_periodic_start (EV_P_ struct ev_periodic *w) 1605ev_periodic_start (EV_P_ ev_periodic *w)
1479{ 1606{
1480 if (expect_false (ev_is_active (w))) 1607 if (expect_false (ev_is_active (w)))
1481 return; 1608 return;
1482 1609
1483 if (w->reschedule_cb) 1610 if (w->reschedule_cb)
1488 /* this formula differs from the one in periodic_reify because we do not always round up */ 1615 /* this formula differs from the one in periodic_reify because we do not always round up */
1489 ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; 1616 ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
1490 } 1617 }
1491 1618
1492 ev_start (EV_A_ (W)w, ++periodiccnt); 1619 ev_start (EV_A_ (W)w, ++periodiccnt);
1493 array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); 1620 array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1494 periodics [periodiccnt - 1] = w; 1621 periodics [periodiccnt - 1] = w;
1495 upheap ((WT *)periodics, periodiccnt - 1); 1622 upheap ((WT *)periodics, periodiccnt - 1);
1496 1623
1497 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); 1624 /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/
1498} 1625}
1499 1626
1500void 1627void
1501ev_periodic_stop (EV_P_ struct ev_periodic *w) 1628ev_periodic_stop (EV_P_ ev_periodic *w)
1502{ 1629{
1503 ev_clear_pending (EV_A_ (W)w); 1630 ev_clear_pending (EV_A_ (W)w);
1504 if (expect_false (!ev_is_active (w))) 1631 if (expect_false (!ev_is_active (w)))
1505 return; 1632 return;
1506 1633
1507 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); 1634 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1508 1635
1636 {
1637 int active = ((W)w)->active;
1638
1509 if (expect_true (((W)w)->active < periodiccnt--)) 1639 if (expect_true (--active < --periodiccnt))
1510 { 1640 {
1511 periodics [((W)w)->active - 1] = periodics [periodiccnt]; 1641 periodics [active] = periodics [periodiccnt];
1512 adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); 1642 adjustheap ((WT *)periodics, periodiccnt, active);
1513 } 1643 }
1644 }
1514 1645
1515 ev_stop (EV_A_ (W)w); 1646 ev_stop (EV_A_ (W)w);
1516} 1647}
1517 1648
1518void 1649void
1519ev_periodic_again (EV_P_ struct ev_periodic *w) 1650ev_periodic_again (EV_P_ ev_periodic *w)
1520{ 1651{
1521 /* TODO: use adjustheap and recalculation */ 1652 /* TODO: use adjustheap and recalculation */
1522 ev_periodic_stop (EV_A_ w); 1653 ev_periodic_stop (EV_A_ w);
1523 ev_periodic_start (EV_A_ w); 1654 ev_periodic_start (EV_A_ w);
1524} 1655}
1525#endif 1656#endif
1526 1657
1527void
1528ev_idle_start (EV_P_ struct ev_idle *w)
1529{
1530 if (expect_false (ev_is_active (w)))
1531 return;
1532
1533 ev_start (EV_A_ (W)w, ++idlecnt);
1534 array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1535 idles [idlecnt - 1] = w;
1536}
1537
1538void
1539ev_idle_stop (EV_P_ struct ev_idle *w)
1540{
1541 ev_clear_pending (EV_A_ (W)w);
1542 if (expect_false (!ev_is_active (w)))
1543 return;
1544
1545 idles [((W)w)->active - 1] = idles [--idlecnt];
1546 ev_stop (EV_A_ (W)w);
1547}
1548
1549void
1550ev_prepare_start (EV_P_ struct ev_prepare *w)
1551{
1552 if (expect_false (ev_is_active (w)))
1553 return;
1554
1555 ev_start (EV_A_ (W)w, ++preparecnt);
1556 array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1557 prepares [preparecnt - 1] = w;
1558}
1559
1560void
1561ev_prepare_stop (EV_P_ struct ev_prepare *w)
1562{
1563 ev_clear_pending (EV_A_ (W)w);
1564 if (expect_false (!ev_is_active (w)))
1565 return;
1566
1567 prepares [((W)w)->active - 1] = prepares [--preparecnt];
1568 ev_stop (EV_A_ (W)w);
1569}
1570
1571void
1572ev_check_start (EV_P_ struct ev_check *w)
1573{
1574 if (expect_false (ev_is_active (w)))
1575 return;
1576
1577 ev_start (EV_A_ (W)w, ++checkcnt);
1578 array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
1579 checks [checkcnt - 1] = w;
1580}
1581
1582void
1583ev_check_stop (EV_P_ struct ev_check *w)
1584{
1585 ev_clear_pending (EV_A_ (W)w);
1586 if (expect_false (!ev_is_active (w)))
1587 return;
1588
1589 checks [((W)w)->active - 1] = checks [--checkcnt];
1590 ev_stop (EV_A_ (W)w);
1591}
1592
1593#ifndef SA_RESTART 1658#ifndef SA_RESTART
1594# define SA_RESTART 0 1659# define SA_RESTART 0
1595#endif 1660#endif
1596 1661
1597void 1662void
1598ev_signal_start (EV_P_ struct ev_signal *w) 1663ev_signal_start (EV_P_ ev_signal *w)
1599{ 1664{
1600#if EV_MULTIPLICITY 1665#if EV_MULTIPLICITY
1601 assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 1666 assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1602#endif 1667#endif
1603 if (expect_false (ev_is_active (w))) 1668 if (expect_false (ev_is_active (w)))
1622#endif 1687#endif
1623 } 1688 }
1624} 1689}
1625 1690
1626void 1691void
1627ev_signal_stop (EV_P_ struct ev_signal *w) 1692ev_signal_stop (EV_P_ ev_signal *w)
1628{ 1693{
1629 ev_clear_pending (EV_A_ (W)w); 1694 ev_clear_pending (EV_A_ (W)w);
1630 if (expect_false (!ev_is_active (w))) 1695 if (expect_false (!ev_is_active (w)))
1631 return; 1696 return;
1632 1697
1636 if (!signals [w->signum - 1].head) 1701 if (!signals [w->signum - 1].head)
1637 signal (w->signum, SIG_DFL); 1702 signal (w->signum, SIG_DFL);
1638} 1703}
1639 1704
1640void 1705void
1641ev_child_start (EV_P_ struct ev_child *w) 1706ev_child_start (EV_P_ ev_child *w)
1642{ 1707{
1643#if EV_MULTIPLICITY 1708#if EV_MULTIPLICITY
1644 assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 1709 assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1645#endif 1710#endif
1646 if (expect_false (ev_is_active (w))) 1711 if (expect_false (ev_is_active (w)))
1647 return; 1712 return;
1648 1713
1649 ev_start (EV_A_ (W)w, 1); 1714 ev_start (EV_A_ (W)w, 1);
1650 wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1715 wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1651} 1716}
1652 1717
1653void 1718void
1654ev_child_stop (EV_P_ struct ev_child *w) 1719ev_child_stop (EV_P_ ev_child *w)
1655{ 1720{
1656 ev_clear_pending (EV_A_ (W)w); 1721 ev_clear_pending (EV_A_ (W)w);
1657 if (expect_false (!ev_is_active (w))) 1722 if (expect_false (!ev_is_active (w)))
1658 return; 1723 return;
1659 1724
1660 wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1725 wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1661 ev_stop (EV_A_ (W)w); 1726 ev_stop (EV_A_ (W)w);
1662} 1727}
1663 1728
1729#if EV_STAT_ENABLE
1730
1731# ifdef _WIN32
1732# undef lstat
1733# define lstat(a,b) _stati64 (a,b)
1734# endif
1735
1736#define DEF_STAT_INTERVAL 5.0074891
1737#define MIN_STAT_INTERVAL 0.1074891
1738
1739static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
1740
1741#if EV_USE_INOTIFY
1742# define EV_INOTIFY_BUFSIZE 8192
1743
1744static void noinline
1745infy_add (EV_P_ ev_stat *w)
1746{
1747 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);
1748
1749 if (w->wd < 0)
1750 {
1751 ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
1752
1753 /* monitor some parent directory for speedup hints */
1754 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
1755 {
1756 char path [4096];
1757 strcpy (path, w->path);
1758
1759 do
1760 {
1761 int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF
1762 | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);
1763
1764 char *pend = strrchr (path, '/');
1765
1766 if (!pend)
1767 break; /* whoops, no '/', complain to your admin */
1768
1769 *pend = 0;
1770 w->wd = inotify_add_watch (fs_fd, path, mask);
1771 }
1772 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
1773 }
1774 }
1775 else
1776 ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */
1777
1778 if (w->wd >= 0)
1779 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
1780}
1781
1782static void noinline
1783infy_del (EV_P_ ev_stat *w)
1784{
1785 int slot;
1786 int wd = w->wd;
1787
1788 if (wd < 0)
1789 return;
1790
1791 w->wd = -2;
1792 slot = wd & (EV_INOTIFY_HASHSIZE - 1);
1793 wlist_del (&fs_hash [slot].head, (WL)w);
1794
1795 /* remove this watcher, if others are watching it, they will rearm */
1796 inotify_rm_watch (fs_fd, wd);
1797}
1798
1799static void noinline
1800infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
1801{
1802 if (slot < 0)
1803 /* overflow, need to check for all hahs slots */
1804 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
1805 infy_wd (EV_A_ slot, wd, ev);
1806 else
1807 {
1808 WL w_;
1809
1810 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; )
1811 {
1812 ev_stat *w = (ev_stat *)w_;
1813 w_ = w_->next; /* lets us remove this watcher and all before it */
1814
1815 if (w->wd == wd || wd == -1)
1816 {
1817 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
1818 {
1819 w->wd = -1;
1820 infy_add (EV_A_ w); /* re-add, no matter what */
1821 }
1822
1823 stat_timer_cb (EV_A_ &w->timer, 0);
1824 }
1825 }
1826 }
1827}
1828
1829static void
1830infy_cb (EV_P_ ev_io *w, int revents)
1831{
1832 char buf [EV_INOTIFY_BUFSIZE];
1833 struct inotify_event *ev = (struct inotify_event *)buf;
1834 int ofs;
1835 int len = read (fs_fd, buf, sizeof (buf));
1836
1837 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)
1838 infy_wd (EV_A_ ev->wd, ev->wd, ev);
1839}
1840
1841void inline_size
1842infy_init (EV_P)
1843{
1844 if (fs_fd != -2)
1845 return;
1846
1847 fs_fd = inotify_init ();
1848
1849 if (fs_fd >= 0)
1850 {
1851 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
1852 ev_set_priority (&fs_w, EV_MAXPRI);
1853 ev_io_start (EV_A_ &fs_w);
1854 }
1855}
1856
1857void inline_size
1858infy_fork (EV_P)
1859{
1860 int slot;
1861
1862 if (fs_fd < 0)
1863 return;
1864
1865 close (fs_fd);
1866 fs_fd = inotify_init ();
1867
1868 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
1869 {
1870 WL w_ = fs_hash [slot].head;
1871 fs_hash [slot].head = 0;
1872
1873 while (w_)
1874 {
1875 ev_stat *w = (ev_stat *)w_;
1876 w_ = w_->next; /* lets us add this watcher */
1877
1878 w->wd = -1;
1879
1880 if (fs_fd >= 0)
1881 infy_add (EV_A_ w); /* re-add, no matter what */
1882 else
1883 ev_timer_start (EV_A_ &w->timer);
1884 }
1885
1886 }
1887}
1888
1889#endif
1890
1891void
1892ev_stat_stat (EV_P_ ev_stat *w)
1893{
1894 if (lstat (w->path, &w->attr) < 0)
1895 w->attr.st_nlink = 0;
1896 else if (!w->attr.st_nlink)
1897 w->attr.st_nlink = 1;
1898}
1899
1900static void noinline
1901stat_timer_cb (EV_P_ ev_timer *w_, int revents)
1902{
1903 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
1904
1905 /* we copy this here each the time so that */
1906 /* prev has the old value when the callback gets invoked */
1907 w->prev = w->attr;
1908 ev_stat_stat (EV_A_ w);
1909
1910 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
1911 if (
1912 w->prev.st_dev != w->attr.st_dev
1913 || w->prev.st_ino != w->attr.st_ino
1914 || w->prev.st_mode != w->attr.st_mode
1915 || w->prev.st_nlink != w->attr.st_nlink
1916 || w->prev.st_uid != w->attr.st_uid
1917 || w->prev.st_gid != w->attr.st_gid
1918 || w->prev.st_rdev != w->attr.st_rdev
1919 || w->prev.st_size != w->attr.st_size
1920 || w->prev.st_atime != w->attr.st_atime
1921 || w->prev.st_mtime != w->attr.st_mtime
1922 || w->prev.st_ctime != w->attr.st_ctime
1923 ) {
1924 #if EV_USE_INOTIFY
1925 infy_del (EV_A_ w);
1926 infy_add (EV_A_ w);
1927 ev_stat_stat (EV_A_ w); /* avoid race... */
1928 #endif
1929
1930 ev_feed_event (EV_A_ w, EV_STAT);
1931 }
1932}
1933
1934void
1935ev_stat_start (EV_P_ ev_stat *w)
1936{
1937 if (expect_false (ev_is_active (w)))
1938 return;
1939
1940 /* since we use memcmp, we need to clear any padding data etc. */
1941 memset (&w->prev, 0, sizeof (ev_statdata));
1942 memset (&w->attr, 0, sizeof (ev_statdata));
1943
1944 ev_stat_stat (EV_A_ w);
1945
1946 if (w->interval < MIN_STAT_INTERVAL)
1947 w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
1948
1949 ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);
1950 ev_set_priority (&w->timer, ev_priority (w));
1951
1952#if EV_USE_INOTIFY
1953 infy_init (EV_A);
1954
1955 if (fs_fd >= 0)
1956 infy_add (EV_A_ w);
1957 else
1958#endif
1959 ev_timer_start (EV_A_ &w->timer);
1960
1961 ev_start (EV_A_ (W)w, 1);
1962}
1963
1964void
1965ev_stat_stop (EV_P_ ev_stat *w)
1966{
1967 ev_clear_pending (EV_A_ (W)w);
1968 if (expect_false (!ev_is_active (w)))
1969 return;
1970
1971#if EV_USE_INOTIFY
1972 infy_del (EV_A_ w);
1973#endif
1974 ev_timer_stop (EV_A_ &w->timer);
1975
1976 ev_stop (EV_A_ (W)w);
1977}
1978#endif
1979
1980void
1981ev_idle_start (EV_P_ ev_idle *w)
1982{
1983 if (expect_false (ev_is_active (w)))
1984 return;
1985
1986 ev_start (EV_A_ (W)w, ++idlecnt);
1987 array_needsize (ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1988 idles [idlecnt - 1] = w;
1989}
1990
1991void
1992ev_idle_stop (EV_P_ ev_idle *w)
1993{
1994 ev_clear_pending (EV_A_ (W)w);
1995 if (expect_false (!ev_is_active (w)))
1996 return;
1997
1998 {
1999 int active = ((W)w)->active;
2000 idles [active - 1] = idles [--idlecnt];
2001 ((W)idles [active - 1])->active = active;
2002 }
2003
2004 ev_stop (EV_A_ (W)w);
2005}
2006
2007void
2008ev_prepare_start (EV_P_ ev_prepare *w)
2009{
2010 if (expect_false (ev_is_active (w)))
2011 return;
2012
2013 ev_start (EV_A_ (W)w, ++preparecnt);
2014 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
2015 prepares [preparecnt - 1] = w;
2016}
2017
2018void
2019ev_prepare_stop (EV_P_ ev_prepare *w)
2020{
2021 ev_clear_pending (EV_A_ (W)w);
2022 if (expect_false (!ev_is_active (w)))
2023 return;
2024
2025 {
2026 int active = ((W)w)->active;
2027 prepares [active - 1] = prepares [--preparecnt];
2028 ((W)prepares [active - 1])->active = active;
2029 }
2030
2031 ev_stop (EV_A_ (W)w);
2032}
2033
2034void
2035ev_check_start (EV_P_ ev_check *w)
2036{
2037 if (expect_false (ev_is_active (w)))
2038 return;
2039
2040 ev_start (EV_A_ (W)w, ++checkcnt);
2041 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
2042 checks [checkcnt - 1] = w;
2043}
2044
2045void
2046ev_check_stop (EV_P_ ev_check *w)
2047{
2048 ev_clear_pending (EV_A_ (W)w);
2049 if (expect_false (!ev_is_active (w)))
2050 return;
2051
2052 {
2053 int active = ((W)w)->active;
2054 checks [active - 1] = checks [--checkcnt];
2055 ((W)checks [active - 1])->active = active;
2056 }
2057
2058 ev_stop (EV_A_ (W)w);
2059}
2060
2061#if EV_EMBED_ENABLE
2062void noinline
2063ev_embed_sweep (EV_P_ ev_embed *w)
2064{
2065 ev_loop (w->loop, EVLOOP_NONBLOCK);
2066}
2067
2068static void
2069embed_cb (EV_P_ ev_io *io, int revents)
2070{
2071 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
2072
2073 if (ev_cb (w))
2074 ev_feed_event (EV_A_ (W)w, EV_EMBED);
2075 else
2076 ev_embed_sweep (loop, w);
2077}
2078
2079void
2080ev_embed_start (EV_P_ ev_embed *w)
2081{
2082 if (expect_false (ev_is_active (w)))
2083 return;
2084
2085 {
2086 struct ev_loop *loop = w->loop;
2087 assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2088 ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);
2089 }
2090
2091 ev_set_priority (&w->io, ev_priority (w));
2092 ev_io_start (EV_A_ &w->io);
2093
2094 ev_start (EV_A_ (W)w, 1);
2095}
2096
2097void
2098ev_embed_stop (EV_P_ ev_embed *w)
2099{
2100 ev_clear_pending (EV_A_ (W)w);
2101 if (expect_false (!ev_is_active (w)))
2102 return;
2103
2104 ev_io_stop (EV_A_ &w->io);
2105
2106 ev_stop (EV_A_ (W)w);
2107}
2108#endif
2109
2110#if EV_FORK_ENABLE
2111void
2112ev_fork_start (EV_P_ ev_fork *w)
2113{
2114 if (expect_false (ev_is_active (w)))
2115 return;
2116
2117 ev_start (EV_A_ (W)w, ++forkcnt);
2118 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);
2119 forks [forkcnt - 1] = w;
2120}
2121
2122void
2123ev_fork_stop (EV_P_ ev_fork *w)
2124{
2125 ev_clear_pending (EV_A_ (W)w);
2126 if (expect_false (!ev_is_active (w)))
2127 return;
2128
2129 {
2130 int active = ((W)w)->active;
2131 forks [active - 1] = forks [--forkcnt];
2132 ((W)forks [active - 1])->active = active;
2133 }
2134
2135 ev_stop (EV_A_ (W)w);
2136}
2137#endif
2138
1664/*****************************************************************************/ 2139/*****************************************************************************/
1665 2140
1666struct ev_once 2141struct ev_once
1667{ 2142{
1668 struct ev_io io; 2143 ev_io io;
1669 struct ev_timer to; 2144 ev_timer to;
1670 void (*cb)(int revents, void *arg); 2145 void (*cb)(int revents, void *arg);
1671 void *arg; 2146 void *arg;
1672}; 2147};
1673 2148
1674static void 2149static void
1683 2158
1684 cb (revents, arg); 2159 cb (revents, arg);
1685} 2160}
1686 2161
1687static void 2162static void
1688once_cb_io (EV_P_ struct ev_io *w, int revents) 2163once_cb_io (EV_P_ ev_io *w, int revents)
1689{ 2164{
1690 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); 2165 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents);
1691} 2166}
1692 2167
1693static void 2168static void
1694once_cb_to (EV_P_ struct ev_timer *w, int revents) 2169once_cb_to (EV_P_ ev_timer *w, int revents)
1695{ 2170{
1696 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); 2171 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents);
1697} 2172}
1698 2173
1699void 2174void

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