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Comparing libev/ev.c (file contents):
Revision 1.135 by root, Sat Nov 24 06:23:27 2007 UTC vs.
Revision 1.162 by root, Mon Dec 3 13:41:24 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))
397 { 437 {
398 pendings [ABSPRI (w_)][w_->pending - 1].events |= revents; 438 pendings [ABSPRI (w_)][w_->pending - 1].events |= revents;
399 return; 439 return;
400 } 440 }
401
402 if (expect_false (!w_->cb))
403 return;
404 441
405 w_->pending = ++pendingcnt [ABSPRI (w_)]; 442 w_->pending = ++pendingcnt [ABSPRI (w_)];
406 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);
407 pendings [ABSPRI (w_)][w_->pending - 1].w = w_; 444 pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
408 pendings [ABSPRI (w_)][w_->pending - 1].events = revents; 445 pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
409} 446}
410 447
411static void 448void inline_size
412queue_events (EV_P_ W *events, int eventcnt, int type) 449queue_events (EV_P_ W *events, int eventcnt, int type)
413{ 450{
414 int i; 451 int i;
415 452
416 for (i = 0; i < eventcnt; ++i) 453 for (i = 0; i < eventcnt; ++i)
417 ev_feed_event (EV_A_ events [i], type); 454 ev_feed_event (EV_A_ events [i], type);
418} 455}
419 456
420inline 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
421fd_event (EV_P_ int fd, int revents) 473fd_event (EV_P_ int fd, int revents)
422{ 474{
423 ANFD *anfd = anfds + fd; 475 ANFD *anfd = anfds + fd;
424 struct ev_io *w; 476 ev_io *w;
425 477
426 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)
427 { 479 {
428 int ev = w->events & revents; 480 int ev = w->events & revents;
429 481
430 if (ev) 482 if (ev)
431 ev_feed_event (EV_A_ (W)w, ev); 483 ev_feed_event (EV_A_ (W)w, ev);
436ev_feed_fd_event (EV_P_ int fd, int revents) 488ev_feed_fd_event (EV_P_ int fd, int revents)
437{ 489{
438 fd_event (EV_A_ fd, revents); 490 fd_event (EV_A_ fd, revents);
439} 491}
440 492
441/*****************************************************************************/ 493void inline_size
442
443inline void
444fd_reify (EV_P) 494fd_reify (EV_P)
445{ 495{
446 int i; 496 int i;
447 497
448 for (i = 0; i < fdchangecnt; ++i) 498 for (i = 0; i < fdchangecnt; ++i)
449 { 499 {
450 int fd = fdchanges [i]; 500 int fd = fdchanges [i];
451 ANFD *anfd = anfds + fd; 501 ANFD *anfd = anfds + fd;
452 struct ev_io *w; 502 ev_io *w;
453 503
454 int events = 0; 504 int events = 0;
455 505
456 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)
457 events |= w->events; 507 events |= w->events;
458 508
459#if EV_SELECT_IS_WINSOCKET 509#if EV_SELECT_IS_WINSOCKET
460 if (events) 510 if (events)
461 { 511 {
472 } 522 }
473 523
474 fdchangecnt = 0; 524 fdchangecnt = 0;
475} 525}
476 526
477static void 527void inline_size
478fd_change (EV_P_ int fd) 528fd_change (EV_P_ int fd)
479{ 529{
480 if (expect_false (anfds [fd].reify)) 530 if (expect_false (anfds [fd].reify))
481 return; 531 return;
482 532
485 ++fdchangecnt; 535 ++fdchangecnt;
486 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 536 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
487 fdchanges [fdchangecnt - 1] = fd; 537 fdchanges [fdchangecnt - 1] = fd;
488} 538}
489 539
490static void 540void inline_speed
491fd_kill (EV_P_ int fd) 541fd_kill (EV_P_ int fd)
492{ 542{
493 struct ev_io *w; 543 ev_io *w;
494 544
495 while ((w = (struct ev_io *)anfds [fd].head)) 545 while ((w = (ev_io *)anfds [fd].head))
496 { 546 {
497 ev_io_stop (EV_A_ w); 547 ev_io_stop (EV_A_ w);
498 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);
499 } 549 }
500} 550}
501 551
502inline int 552int inline_size
503fd_valid (int fd) 553fd_valid (int fd)
504{ 554{
505#ifdef _WIN32 555#ifdef _WIN32
506 return _get_osfhandle (fd) != -1; 556 return _get_osfhandle (fd) != -1;
507#else 557#else
508 return fcntl (fd, F_GETFD) != -1; 558 return fcntl (fd, F_GETFD) != -1;
509#endif 559#endif
510} 560}
511 561
512/* called on EBADF to verify fds */ 562/* called on EBADF to verify fds */
513static void 563static void noinline
514fd_ebadf (EV_P) 564fd_ebadf (EV_P)
515{ 565{
516 int fd; 566 int fd;
517 567
518 for (fd = 0; fd < anfdmax; ++fd) 568 for (fd = 0; fd < anfdmax; ++fd)
520 if (!fd_valid (fd) == -1 && errno == EBADF) 570 if (!fd_valid (fd) == -1 && errno == EBADF)
521 fd_kill (EV_A_ fd); 571 fd_kill (EV_A_ fd);
522} 572}
523 573
524/* 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 */
525static void 575static void noinline
526fd_enomem (EV_P) 576fd_enomem (EV_P)
527{ 577{
528 int fd; 578 int fd;
529 579
530 for (fd = anfdmax; fd--; ) 580 for (fd = anfdmax; fd--; )
534 return; 584 return;
535 } 585 }
536} 586}
537 587
538/* 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 */
539static void 589static void noinline
540fd_rearm_all (EV_P) 590fd_rearm_all (EV_P)
541{ 591{
542 int fd; 592 int fd;
543 593
544 /* this should be highly optimised to not do anything but set a flag */
545 for (fd = 0; fd < anfdmax; ++fd) 594 for (fd = 0; fd < anfdmax; ++fd)
546 if (anfds [fd].events) 595 if (anfds [fd].events)
547 { 596 {
548 anfds [fd].events = 0; 597 anfds [fd].events = 0;
549 fd_change (EV_A_ fd); 598 fd_change (EV_A_ fd);
550 } 599 }
551} 600}
552 601
553/*****************************************************************************/ 602/*****************************************************************************/
554 603
555static void 604void inline_speed
556upheap (WT *heap, int k) 605upheap (WT *heap, int k)
557{ 606{
558 WT w = heap [k]; 607 WT w = heap [k];
559 608
560 while (k && heap [k >> 1]->at > w->at) 609 while (k && heap [k >> 1]->at > w->at)
567 heap [k] = w; 616 heap [k] = w;
568 ((W)heap [k])->active = k + 1; 617 ((W)heap [k])->active = k + 1;
569 618
570} 619}
571 620
572static void 621void inline_speed
573downheap (WT *heap, int N, int k) 622downheap (WT *heap, int N, int k)
574{ 623{
575 WT w = heap [k]; 624 WT w = heap [k];
576 625
577 while (k < (N >> 1)) 626 while (k < (N >> 1))
591 640
592 heap [k] = w; 641 heap [k] = w;
593 ((W)heap [k])->active = k + 1; 642 ((W)heap [k])->active = k + 1;
594} 643}
595 644
596inline void 645void inline_size
597adjustheap (WT *heap, int N, int k) 646adjustheap (WT *heap, int N, int k)
598{ 647{
599 upheap (heap, k); 648 upheap (heap, k);
600 downheap (heap, N, k); 649 downheap (heap, N, k);
601} 650}
611static ANSIG *signals; 660static ANSIG *signals;
612static int signalmax; 661static int signalmax;
613 662
614static int sigpipe [2]; 663static int sigpipe [2];
615static sig_atomic_t volatile gotsig; 664static sig_atomic_t volatile gotsig;
616static struct ev_io sigev; 665static ev_io sigev;
617 666
618static void 667void inline_size
619signals_init (ANSIG *base, int count) 668signals_init (ANSIG *base, int count)
620{ 669{
621 while (count--) 670 while (count--)
622 { 671 {
623 base->head = 0; 672 base->head = 0;
643 write (sigpipe [1], &signum, 1); 692 write (sigpipe [1], &signum, 1);
644 errno = old_errno; 693 errno = old_errno;
645 } 694 }
646} 695}
647 696
648void 697void noinline
649ev_feed_signal_event (EV_P_ int signum) 698ev_feed_signal_event (EV_P_ int signum)
650{ 699{
651 WL w; 700 WL w;
652 701
653#if EV_MULTIPLICITY 702#if EV_MULTIPLICITY
664 for (w = signals [signum].head; w; w = w->next) 713 for (w = signals [signum].head; w; w = w->next)
665 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 714 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
666} 715}
667 716
668static void 717static void
669sigcb (EV_P_ struct ev_io *iow, int revents) 718sigcb (EV_P_ ev_io *iow, int revents)
670{ 719{
671 int signum; 720 int signum;
672 721
673 read (sigpipe [0], &revents, 1); 722 read (sigpipe [0], &revents, 1);
674 gotsig = 0; 723 gotsig = 0;
676 for (signum = signalmax; signum--; ) 725 for (signum = signalmax; signum--; )
677 if (signals [signum].gotsig) 726 if (signals [signum].gotsig)
678 ev_feed_signal_event (EV_A_ signum + 1); 727 ev_feed_signal_event (EV_A_ signum + 1);
679} 728}
680 729
681static void 730void inline_size
682fd_intern (int fd) 731fd_intern (int fd)
683{ 732{
684#ifdef _WIN32 733#ifdef _WIN32
685 int arg = 1; 734 int arg = 1;
686 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); 735 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
688 fcntl (fd, F_SETFD, FD_CLOEXEC); 737 fcntl (fd, F_SETFD, FD_CLOEXEC);
689 fcntl (fd, F_SETFL, O_NONBLOCK); 738 fcntl (fd, F_SETFL, O_NONBLOCK);
690#endif 739#endif
691} 740}
692 741
693static void 742static void noinline
694siginit (EV_P) 743siginit (EV_P)
695{ 744{
696 fd_intern (sigpipe [0]); 745 fd_intern (sigpipe [0]);
697 fd_intern (sigpipe [1]); 746 fd_intern (sigpipe [1]);
698 747
701 ev_unref (EV_A); /* child watcher should not keep loop alive */ 750 ev_unref (EV_A); /* child watcher should not keep loop alive */
702} 751}
703 752
704/*****************************************************************************/ 753/*****************************************************************************/
705 754
706static struct ev_child *childs [PID_HASHSIZE]; 755static ev_child *childs [EV_PID_HASHSIZE];
707 756
708#ifndef _WIN32 757#ifndef _WIN32
709 758
710static struct ev_signal childev; 759static ev_signal childev;
711 760
712#ifndef WCONTINUED 761void inline_speed
713# define WCONTINUED 0
714#endif
715
716static void
717child_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)
718{ 763{
719 struct ev_child *w; 764 ev_child *w;
720 765
721 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)
722 if (w->pid == pid || !w->pid) 767 if (w->pid == pid || !w->pid)
723 { 768 {
724 ev_priority (w) = ev_priority (sw); /* need to do it *now* */ 769 ev_priority (w) = ev_priority (sw); /* need to do it *now* */
725 w->rpid = pid; 770 w->rpid = pid;
726 w->rstatus = status; 771 w->rstatus = status;
727 ev_feed_event (EV_A_ (W)w, EV_CHILD); 772 ev_feed_event (EV_A_ (W)w, EV_CHILD);
728 } 773 }
729} 774}
730 775
776#ifndef WCONTINUED
777# define WCONTINUED 0
778#endif
779
731static void 780static void
732childcb (EV_P_ struct ev_signal *sw, int revents) 781childcb (EV_P_ ev_signal *sw, int revents)
733{ 782{
734 int pid, status; 783 int pid, status;
735 784
785 /* some systems define WCONTINUED but then fail to support it (linux 2.4) */
736 if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) 786 if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))
737 { 787 if (!WCONTINUED
788 || errno != EINVAL
789 || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED)))
790 return;
791
738 /* 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 */
739 /* 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 */
740 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 794 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
741 795
742 child_reap (EV_A_ sw, pid, pid, status); 796 child_reap (EV_A_ sw, pid, pid, status);
797 if (EV_PID_HASHSIZE > 1)
743 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 */
744 }
745} 799}
746 800
747#endif 801#endif
748 802
749/*****************************************************************************/ 803/*****************************************************************************/
775{ 829{
776 return EV_VERSION_MINOR; 830 return EV_VERSION_MINOR;
777} 831}
778 832
779/* 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 */
780static int 834int inline_size
781enable_secure (void) 835enable_secure (void)
782{ 836{
783#ifdef _WIN32 837#ifdef _WIN32
784 return 0; 838 return 0;
785#else 839#else
832ev_backend (EV_P) 886ev_backend (EV_P)
833{ 887{
834 return backend; 888 return backend;
835} 889}
836 890
837static void 891unsigned int
892ev_loop_count (EV_P)
893{
894 return loop_count;
895}
896
897static void noinline
838loop_init (EV_P_ unsigned int flags) 898loop_init (EV_P_ unsigned int flags)
839{ 899{
840 if (!backend) 900 if (!backend)
841 { 901 {
842#if EV_USE_MONOTONIC 902#if EV_USE_MONOTONIC
850 ev_rt_now = ev_time (); 910 ev_rt_now = ev_time ();
851 mn_now = get_clock (); 911 mn_now = get_clock ();
852 now_floor = mn_now; 912 now_floor = mn_now;
853 rtmn_diff = ev_rt_now - mn_now; 913 rtmn_diff = ev_rt_now - mn_now;
854 914
915 /* pid check not overridable via env */
916#ifndef _WIN32
917 if (flags & EVFLAG_FORKCHECK)
918 curpid = getpid ();
919#endif
920
855 if (!(flags & EVFLAG_NOENV) 921 if (!(flags & EVFLAG_NOENV)
856 && !enable_secure () 922 && !enable_secure ()
857 && getenv ("LIBEV_FLAGS")) 923 && getenv ("LIBEV_FLAGS"))
858 flags = atoi (getenv ("LIBEV_FLAGS")); 924 flags = atoi (getenv ("LIBEV_FLAGS"));
859 925
860 if (!(flags & 0x0000ffffUL)) 926 if (!(flags & 0x0000ffffUL))
861 flags |= ev_recommended_backends (); 927 flags |= ev_recommended_backends ();
862 928
863 backend = 0; 929 backend = 0;
930 backend_fd = -1;
931#if EV_USE_INOTIFY
932 fs_fd = -2;
933#endif
934
864#if EV_USE_PORT 935#if EV_USE_PORT
865 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 936 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
866#endif 937#endif
867#if EV_USE_KQUEUE 938#if EV_USE_KQUEUE
868 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 939 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
880 ev_init (&sigev, sigcb); 951 ev_init (&sigev, sigcb);
881 ev_set_priority (&sigev, EV_MAXPRI); 952 ev_set_priority (&sigev, EV_MAXPRI);
882 } 953 }
883} 954}
884 955
885static void 956static void noinline
886loop_destroy (EV_P) 957loop_destroy (EV_P)
887{ 958{
888 int i; 959 int i;
960
961#if EV_USE_INOTIFY
962 if (fs_fd >= 0)
963 close (fs_fd);
964#endif
965
966 if (backend_fd >= 0)
967 close (backend_fd);
889 968
890#if EV_USE_PORT 969#if EV_USE_PORT
891 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 970 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
892#endif 971#endif
893#if EV_USE_KQUEUE 972#if EV_USE_KQUEUE
907 array_free (pending, [i]); 986 array_free (pending, [i]);
908 987
909 /* have to use the microsoft-never-gets-it-right macro */ 988 /* have to use the microsoft-never-gets-it-right macro */
910 array_free (fdchange, EMPTY0); 989 array_free (fdchange, EMPTY0);
911 array_free (timer, EMPTY0); 990 array_free (timer, EMPTY0);
912#if EV_PERIODICS 991#if EV_PERIODIC_ENABLE
913 array_free (periodic, EMPTY0); 992 array_free (periodic, EMPTY0);
914#endif 993#endif
915 array_free (idle, EMPTY0); 994 array_free (idle, EMPTY0);
916 array_free (prepare, EMPTY0); 995 array_free (prepare, EMPTY0);
917 array_free (check, EMPTY0); 996 array_free (check, EMPTY0);
918 997
919 backend = 0; 998 backend = 0;
920} 999}
921 1000
922static void 1001void inline_size infy_fork (EV_P);
1002
1003void inline_size
923loop_fork (EV_P) 1004loop_fork (EV_P)
924{ 1005{
925#if EV_USE_PORT 1006#if EV_USE_PORT
926 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 1007 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
927#endif 1008#endif
928#if EV_USE_KQUEUE 1009#if EV_USE_KQUEUE
929 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); 1010 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
930#endif 1011#endif
931#if EV_USE_EPOLL 1012#if EV_USE_EPOLL
932 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); 1013 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
1014#endif
1015#if EV_USE_INOTIFY
1016 infy_fork (EV_A);
933#endif 1017#endif
934 1018
935 if (ev_is_active (&sigev)) 1019 if (ev_is_active (&sigev))
936 { 1020 {
937 /* default loop */ 1021 /* default loop */
1053 postfork = 1; 1137 postfork = 1;
1054} 1138}
1055 1139
1056/*****************************************************************************/ 1140/*****************************************************************************/
1057 1141
1058static int 1142int inline_size
1059any_pending (EV_P) 1143any_pending (EV_P)
1060{ 1144{
1061 int pri; 1145 int pri;
1062 1146
1063 for (pri = NUMPRI; pri--; ) 1147 for (pri = NUMPRI; pri--; )
1065 return 1; 1149 return 1;
1066 1150
1067 return 0; 1151 return 0;
1068} 1152}
1069 1153
1070inline void 1154void inline_speed
1071call_pending (EV_P) 1155call_pending (EV_P)
1072{ 1156{
1073 int pri; 1157 int pri;
1074 1158
1075 for (pri = NUMPRI; pri--; ) 1159 for (pri = NUMPRI; pri--; )
1077 { 1161 {
1078 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 1162 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1079 1163
1080 if (expect_true (p->w)) 1164 if (expect_true (p->w))
1081 { 1165 {
1166 /*assert (("non-pending watcher on pending list", p->w->pending));*/
1167
1082 p->w->pending = 0; 1168 p->w->pending = 0;
1083 EV_CB_INVOKE (p->w, p->events); 1169 EV_CB_INVOKE (p->w, p->events);
1084 } 1170 }
1085 } 1171 }
1086} 1172}
1087 1173
1088inline void 1174void inline_size
1089timers_reify (EV_P) 1175timers_reify (EV_P)
1090{ 1176{
1091 while (timercnt && ((WT)timers [0])->at <= mn_now) 1177 while (timercnt && ((WT)timers [0])->at <= mn_now)
1092 { 1178 {
1093 struct ev_timer *w = timers [0]; 1179 ev_timer *w = timers [0];
1094 1180
1095 assert (("inactive timer on timer heap detected", ev_is_active (w))); 1181 /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
1096 1182
1097 /* first reschedule or stop timer */ 1183 /* first reschedule or stop timer */
1098 if (w->repeat) 1184 if (w->repeat)
1099 { 1185 {
1100 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); 1186 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1110 1196
1111 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); 1197 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
1112 } 1198 }
1113} 1199}
1114 1200
1115#if EV_PERIODICS 1201#if EV_PERIODIC_ENABLE
1116inline void 1202void inline_size
1117periodics_reify (EV_P) 1203periodics_reify (EV_P)
1118{ 1204{
1119 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) 1205 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1120 { 1206 {
1121 struct ev_periodic *w = periodics [0]; 1207 ev_periodic *w = periodics [0];
1122 1208
1123 assert (("inactive timer on periodic heap detected", ev_is_active (w))); 1209 /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
1124 1210
1125 /* first reschedule or stop timer */ 1211 /* first reschedule or stop timer */
1126 if (w->reschedule_cb) 1212 if (w->reschedule_cb)
1127 { 1213 {
1128 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); 1214 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
1140 1226
1141 ev_feed_event (EV_A_ (W)w, EV_PERIODIC); 1227 ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
1142 } 1228 }
1143} 1229}
1144 1230
1145static void 1231static void noinline
1146periodics_reschedule (EV_P) 1232periodics_reschedule (EV_P)
1147{ 1233{
1148 int i; 1234 int i;
1149 1235
1150 /* adjust periodics after time jump */ 1236 /* adjust periodics after time jump */
1151 for (i = 0; i < periodiccnt; ++i) 1237 for (i = 0; i < periodiccnt; ++i)
1152 { 1238 {
1153 struct ev_periodic *w = periodics [i]; 1239 ev_periodic *w = periodics [i];
1154 1240
1155 if (w->reschedule_cb) 1241 if (w->reschedule_cb)
1156 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); 1242 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1157 else if (w->interval) 1243 else if (w->interval)
1158 ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; 1244 ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
1162 for (i = periodiccnt >> 1; i--; ) 1248 for (i = periodiccnt >> 1; i--; )
1163 downheap ((WT *)periodics, periodiccnt, i); 1249 downheap ((WT *)periodics, periodiccnt, i);
1164} 1250}
1165#endif 1251#endif
1166 1252
1167inline int 1253int inline_size
1168time_update_monotonic (EV_P) 1254time_update_monotonic (EV_P)
1169{ 1255{
1170 mn_now = get_clock (); 1256 mn_now = get_clock ();
1171 1257
1172 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) 1258 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1180 ev_rt_now = ev_time (); 1266 ev_rt_now = ev_time ();
1181 return 1; 1267 return 1;
1182 } 1268 }
1183} 1269}
1184 1270
1185inline void 1271void inline_size
1186time_update (EV_P) 1272time_update (EV_P)
1187{ 1273{
1188 int i; 1274 int i;
1189 1275
1190#if EV_USE_MONOTONIC 1276#if EV_USE_MONOTONIC
1192 { 1278 {
1193 if (time_update_monotonic (EV_A)) 1279 if (time_update_monotonic (EV_A))
1194 { 1280 {
1195 ev_tstamp odiff = rtmn_diff; 1281 ev_tstamp odiff = rtmn_diff;
1196 1282
1197 for (i = 4; --i; ) /* loop a few times, before making important decisions */ 1283 /* loop a few times, before making important decisions.
1284 * on the choice of "4": one iteration isn't enough,
1285 * in case we get preempted during the calls to
1286 * ev_time and get_clock. a second call is almost guaranteed
1287 * to succeed in that case, though. and looping a few more times
1288 * doesn't hurt either as we only do this on time-jumps or
1289 * in the unlikely event of having been preempted here.
1290 */
1291 for (i = 4; --i; )
1198 { 1292 {
1199 rtmn_diff = ev_rt_now - mn_now; 1293 rtmn_diff = ev_rt_now - mn_now;
1200 1294
1201 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) 1295 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1202 return; /* all is well */ 1296 return; /* all is well */
1204 ev_rt_now = ev_time (); 1298 ev_rt_now = ev_time ();
1205 mn_now = get_clock (); 1299 mn_now = get_clock ();
1206 now_floor = mn_now; 1300 now_floor = mn_now;
1207 } 1301 }
1208 1302
1209# if EV_PERIODICS 1303# if EV_PERIODIC_ENABLE
1210 periodics_reschedule (EV_A); 1304 periodics_reschedule (EV_A);
1211# endif 1305# endif
1212 /* no timer adjustment, as the monotonic clock doesn't jump */ 1306 /* no timer adjustment, as the monotonic clock doesn't jump */
1213 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ 1307 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1214 } 1308 }
1218 { 1312 {
1219 ev_rt_now = ev_time (); 1313 ev_rt_now = ev_time ();
1220 1314
1221 if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) 1315 if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
1222 { 1316 {
1223#if EV_PERIODICS 1317#if EV_PERIODIC_ENABLE
1224 periodics_reschedule (EV_A); 1318 periodics_reschedule (EV_A);
1225#endif 1319#endif
1226 1320
1227 /* adjust timers. this is easy, as the offset is the same for all */ 1321 /* adjust timers. this is easy, as the offset is the same for all of them */
1228 for (i = 0; i < timercnt; ++i) 1322 for (i = 0; i < timercnt; ++i)
1229 ((WT)timers [i])->at += ev_rt_now - mn_now; 1323 ((WT)timers [i])->at += ev_rt_now - mn_now;
1230 } 1324 }
1231 1325
1232 mn_now = ev_rt_now; 1326 mn_now = ev_rt_now;
1252{ 1346{
1253 loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) 1347 loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)
1254 ? EVUNLOOP_ONE 1348 ? EVUNLOOP_ONE
1255 : EVUNLOOP_CANCEL; 1349 : EVUNLOOP_CANCEL;
1256 1350
1257 while (activecnt) 1351 call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */
1352
1353 do
1258 { 1354 {
1355#ifndef _WIN32
1356 if (expect_false (curpid)) /* penalise the forking check even more */
1357 if (expect_false (getpid () != curpid))
1358 {
1359 curpid = getpid ();
1360 postfork = 1;
1361 }
1362#endif
1363
1364#if EV_FORK_ENABLE
1365 /* we might have forked, so queue fork handlers */
1366 if (expect_false (postfork))
1367 if (forkcnt)
1368 {
1369 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
1370 call_pending (EV_A);
1371 }
1372#endif
1373
1259 /* queue check watchers (and execute them) */ 1374 /* queue check watchers (and execute them) */
1260 if (expect_false (preparecnt)) 1375 if (expect_false (preparecnt))
1261 { 1376 {
1262 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 1377 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1263 call_pending (EV_A); 1378 call_pending (EV_A);
1264 } 1379 }
1265 1380
1381 if (expect_false (!activecnt))
1382 break;
1383
1266 /* we might have forked, so reify kernel state if necessary */ 1384 /* we might have forked, so reify kernel state if necessary */
1267 if (expect_false (postfork)) 1385 if (expect_false (postfork))
1268 loop_fork (EV_A); 1386 loop_fork (EV_A);
1269 1387
1270 /* update fd-related kernel structures */ 1388 /* update fd-related kernel structures */
1271 fd_reify (EV_A); 1389 fd_reify (EV_A);
1272 1390
1273 /* calculate blocking time */ 1391 /* calculate blocking time */
1274 { 1392 {
1275 double block; 1393 ev_tstamp block;
1276 1394
1277 if (flags & EVLOOP_NONBLOCK || idlecnt) 1395 if (expect_false (flags & EVLOOP_NONBLOCK || idlecnt || !activecnt))
1278 block = 0.; /* do not block at all */ 1396 block = 0.; /* do not block at all */
1279 else 1397 else
1280 { 1398 {
1281 /* update time to cancel out callback processing overhead */ 1399 /* update time to cancel out callback processing overhead */
1282#if EV_USE_MONOTONIC 1400#if EV_USE_MONOTONIC
1295 { 1413 {
1296 ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; 1414 ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1297 if (block > to) block = to; 1415 if (block > to) block = to;
1298 } 1416 }
1299 1417
1300#if EV_PERIODICS 1418#if EV_PERIODIC_ENABLE
1301 if (periodiccnt) 1419 if (periodiccnt)
1302 { 1420 {
1303 ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; 1421 ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1304 if (block > to) block = to; 1422 if (block > to) block = to;
1305 } 1423 }
1306#endif 1424#endif
1307 1425
1308 if (expect_false (block < 0.)) block = 0.; 1426 if (expect_false (block < 0.)) block = 0.;
1309 } 1427 }
1310 1428
1429 ++loop_count;
1311 backend_poll (EV_A_ block); 1430 backend_poll (EV_A_ block);
1312 } 1431 }
1313 1432
1314 /* update ev_rt_now, do magic */ 1433 /* update ev_rt_now, do magic */
1315 time_update (EV_A); 1434 time_update (EV_A);
1316 1435
1317 /* queue pending timers and reschedule them */ 1436 /* queue pending timers and reschedule them */
1318 timers_reify (EV_A); /* relative timers called last */ 1437 timers_reify (EV_A); /* relative timers called last */
1319#if EV_PERIODICS 1438#if EV_PERIODIC_ENABLE
1320 periodics_reify (EV_A); /* absolute timers called first */ 1439 periodics_reify (EV_A); /* absolute timers called first */
1321#endif 1440#endif
1322 1441
1323 /* queue idle watchers unless io or timers are pending */ 1442 /* queue idle watchers unless other events are pending */
1324 if (idlecnt && !any_pending (EV_A)) 1443 if (idlecnt && !any_pending (EV_A))
1325 queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); 1444 queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1326 1445
1327 /* queue check watchers, to be executed first */ 1446 /* queue check watchers, to be executed first */
1328 if (expect_false (checkcnt)) 1447 if (expect_false (checkcnt))
1329 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 1448 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1330 1449
1331 call_pending (EV_A); 1450 call_pending (EV_A);
1332 1451
1333 if (expect_false (loop_done))
1334 break;
1335 } 1452 }
1453 while (expect_true (activecnt && !loop_done));
1336 1454
1337 if (loop_done == EVUNLOOP_ONE) 1455 if (loop_done == EVUNLOOP_ONE)
1338 loop_done = EVUNLOOP_CANCEL; 1456 loop_done = EVUNLOOP_CANCEL;
1339} 1457}
1340 1458
1344 loop_done = how; 1462 loop_done = how;
1345} 1463}
1346 1464
1347/*****************************************************************************/ 1465/*****************************************************************************/
1348 1466
1349inline void 1467void inline_size
1350wlist_add (WL *head, WL elem) 1468wlist_add (WL *head, WL elem)
1351{ 1469{
1352 elem->next = *head; 1470 elem->next = *head;
1353 *head = elem; 1471 *head = elem;
1354} 1472}
1355 1473
1356inline void 1474void inline_size
1357wlist_del (WL *head, WL elem) 1475wlist_del (WL *head, WL elem)
1358{ 1476{
1359 while (*head) 1477 while (*head)
1360 { 1478 {
1361 if (*head == elem) 1479 if (*head == elem)
1366 1484
1367 head = &(*head)->next; 1485 head = &(*head)->next;
1368 } 1486 }
1369} 1487}
1370 1488
1371inline void 1489void inline_speed
1372ev_clear_pending (EV_P_ W w) 1490ev_clear_pending (EV_P_ W w)
1373{ 1491{
1374 if (w->pending) 1492 if (w->pending)
1375 { 1493 {
1376 pendings [ABSPRI (w)][w->pending - 1].w = 0; 1494 pendings [ABSPRI (w)][w->pending - 1].w = 0;
1377 w->pending = 0; 1495 w->pending = 0;
1378 } 1496 }
1379} 1497}
1380 1498
1381inline void 1499void inline_speed
1382ev_start (EV_P_ W w, int active) 1500ev_start (EV_P_ W w, int active)
1383{ 1501{
1384 if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; 1502 if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
1385 if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; 1503 if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
1386 1504
1387 w->active = active; 1505 w->active = active;
1388 ev_ref (EV_A); 1506 ev_ref (EV_A);
1389} 1507}
1390 1508
1391inline void 1509void inline_size
1392ev_stop (EV_P_ W w) 1510ev_stop (EV_P_ W w)
1393{ 1511{
1394 ev_unref (EV_A); 1512 ev_unref (EV_A);
1395 w->active = 0; 1513 w->active = 0;
1396} 1514}
1397 1515
1398/*****************************************************************************/ 1516/*****************************************************************************/
1399 1517
1400void 1518void
1401ev_io_start (EV_P_ struct ev_io *w) 1519ev_io_start (EV_P_ ev_io *w)
1402{ 1520{
1403 int fd = w->fd; 1521 int fd = w->fd;
1404 1522
1405 if (expect_false (ev_is_active (w))) 1523 if (expect_false (ev_is_active (w)))
1406 return; 1524 return;
1413 1531
1414 fd_change (EV_A_ fd); 1532 fd_change (EV_A_ fd);
1415} 1533}
1416 1534
1417void 1535void
1418ev_io_stop (EV_P_ struct ev_io *w) 1536ev_io_stop (EV_P_ ev_io *w)
1419{ 1537{
1420 ev_clear_pending (EV_A_ (W)w); 1538 ev_clear_pending (EV_A_ (W)w);
1421 if (expect_false (!ev_is_active (w))) 1539 if (expect_false (!ev_is_active (w)))
1422 return; 1540 return;
1423 1541
1428 1546
1429 fd_change (EV_A_ w->fd); 1547 fd_change (EV_A_ w->fd);
1430} 1548}
1431 1549
1432void 1550void
1433ev_timer_start (EV_P_ struct ev_timer *w) 1551ev_timer_start (EV_P_ ev_timer *w)
1434{ 1552{
1435 if (expect_false (ev_is_active (w))) 1553 if (expect_false (ev_is_active (w)))
1436 return; 1554 return;
1437 1555
1438 ((WT)w)->at += mn_now; 1556 ((WT)w)->at += mn_now;
1439 1557
1440 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 1558 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1441 1559
1442 ev_start (EV_A_ (W)w, ++timercnt); 1560 ev_start (EV_A_ (W)w, ++timercnt);
1443 array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2); 1561 array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2);
1444 timers [timercnt - 1] = w; 1562 timers [timercnt - 1] = w;
1445 upheap ((WT *)timers, timercnt - 1); 1563 upheap ((WT *)timers, timercnt - 1);
1446 1564
1447 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); 1565 /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/
1448} 1566}
1449 1567
1450void 1568void
1451ev_timer_stop (EV_P_ struct ev_timer *w) 1569ev_timer_stop (EV_P_ ev_timer *w)
1452{ 1570{
1453 ev_clear_pending (EV_A_ (W)w); 1571 ev_clear_pending (EV_A_ (W)w);
1454 if (expect_false (!ev_is_active (w))) 1572 if (expect_false (!ev_is_active (w)))
1455 return; 1573 return;
1456 1574
1457 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); 1575 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1458 1576
1577 {
1578 int active = ((W)w)->active;
1579
1459 if (expect_true (((W)w)->active < timercnt--)) 1580 if (expect_true (--active < --timercnt))
1460 { 1581 {
1461 timers [((W)w)->active - 1] = timers [timercnt]; 1582 timers [active] = timers [timercnt];
1462 adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); 1583 adjustheap ((WT *)timers, timercnt, active);
1463 } 1584 }
1585 }
1464 1586
1465 ((WT)w)->at -= mn_now; 1587 ((WT)w)->at -= mn_now;
1466 1588
1467 ev_stop (EV_A_ (W)w); 1589 ev_stop (EV_A_ (W)w);
1468} 1590}
1469 1591
1470void 1592void
1471ev_timer_again (EV_P_ struct ev_timer *w) 1593ev_timer_again (EV_P_ ev_timer *w)
1472{ 1594{
1473 if (ev_is_active (w)) 1595 if (ev_is_active (w))
1474 { 1596 {
1475 if (w->repeat) 1597 if (w->repeat)
1476 { 1598 {
1485 w->at = w->repeat; 1607 w->at = w->repeat;
1486 ev_timer_start (EV_A_ w); 1608 ev_timer_start (EV_A_ w);
1487 } 1609 }
1488} 1610}
1489 1611
1490#if EV_PERIODICS 1612#if EV_PERIODIC_ENABLE
1491void 1613void
1492ev_periodic_start (EV_P_ struct ev_periodic *w) 1614ev_periodic_start (EV_P_ ev_periodic *w)
1493{ 1615{
1494 if (expect_false (ev_is_active (w))) 1616 if (expect_false (ev_is_active (w)))
1495 return; 1617 return;
1496 1618
1497 if (w->reschedule_cb) 1619 if (w->reschedule_cb)
1502 /* this formula differs from the one in periodic_reify because we do not always round up */ 1624 /* this formula differs from the one in periodic_reify because we do not always round up */
1503 ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; 1625 ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
1504 } 1626 }
1505 1627
1506 ev_start (EV_A_ (W)w, ++periodiccnt); 1628 ev_start (EV_A_ (W)w, ++periodiccnt);
1507 array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); 1629 array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1508 periodics [periodiccnt - 1] = w; 1630 periodics [periodiccnt - 1] = w;
1509 upheap ((WT *)periodics, periodiccnt - 1); 1631 upheap ((WT *)periodics, periodiccnt - 1);
1510 1632
1511 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); 1633 /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/
1512} 1634}
1513 1635
1514void 1636void
1515ev_periodic_stop (EV_P_ struct ev_periodic *w) 1637ev_periodic_stop (EV_P_ ev_periodic *w)
1516{ 1638{
1517 ev_clear_pending (EV_A_ (W)w); 1639 ev_clear_pending (EV_A_ (W)w);
1518 if (expect_false (!ev_is_active (w))) 1640 if (expect_false (!ev_is_active (w)))
1519 return; 1641 return;
1520 1642
1521 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); 1643 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1522 1644
1645 {
1646 int active = ((W)w)->active;
1647
1523 if (expect_true (((W)w)->active < periodiccnt--)) 1648 if (expect_true (--active < --periodiccnt))
1524 { 1649 {
1525 periodics [((W)w)->active - 1] = periodics [periodiccnt]; 1650 periodics [active] = periodics [periodiccnt];
1526 adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); 1651 adjustheap ((WT *)periodics, periodiccnt, active);
1527 } 1652 }
1653 }
1528 1654
1529 ev_stop (EV_A_ (W)w); 1655 ev_stop (EV_A_ (W)w);
1530} 1656}
1531 1657
1532void 1658void
1533ev_periodic_again (EV_P_ struct ev_periodic *w) 1659ev_periodic_again (EV_P_ ev_periodic *w)
1534{ 1660{
1535 /* TODO: use adjustheap and recalculation */ 1661 /* TODO: use adjustheap and recalculation */
1536 ev_periodic_stop (EV_A_ w); 1662 ev_periodic_stop (EV_A_ w);
1537 ev_periodic_start (EV_A_ w); 1663 ev_periodic_start (EV_A_ w);
1538} 1664}
1539#endif 1665#endif
1540 1666
1541void
1542ev_idle_start (EV_P_ struct ev_idle *w)
1543{
1544 if (expect_false (ev_is_active (w)))
1545 return;
1546
1547 ev_start (EV_A_ (W)w, ++idlecnt);
1548 array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1549 idles [idlecnt - 1] = w;
1550}
1551
1552void
1553ev_idle_stop (EV_P_ struct ev_idle *w)
1554{
1555 ev_clear_pending (EV_A_ (W)w);
1556 if (expect_false (!ev_is_active (w)))
1557 return;
1558
1559 idles [((W)w)->active - 1] = idles [--idlecnt];
1560 ev_stop (EV_A_ (W)w);
1561}
1562
1563void
1564ev_prepare_start (EV_P_ struct ev_prepare *w)
1565{
1566 if (expect_false (ev_is_active (w)))
1567 return;
1568
1569 ev_start (EV_A_ (W)w, ++preparecnt);
1570 array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1571 prepares [preparecnt - 1] = w;
1572}
1573
1574void
1575ev_prepare_stop (EV_P_ struct ev_prepare *w)
1576{
1577 ev_clear_pending (EV_A_ (W)w);
1578 if (expect_false (!ev_is_active (w)))
1579 return;
1580
1581 prepares [((W)w)->active - 1] = prepares [--preparecnt];
1582 ev_stop (EV_A_ (W)w);
1583}
1584
1585void
1586ev_check_start (EV_P_ struct ev_check *w)
1587{
1588 if (expect_false (ev_is_active (w)))
1589 return;
1590
1591 ev_start (EV_A_ (W)w, ++checkcnt);
1592 array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
1593 checks [checkcnt - 1] = w;
1594}
1595
1596void
1597ev_check_stop (EV_P_ struct ev_check *w)
1598{
1599 ev_clear_pending (EV_A_ (W)w);
1600 if (expect_false (!ev_is_active (w)))
1601 return;
1602
1603 checks [((W)w)->active - 1] = checks [--checkcnt];
1604 ev_stop (EV_A_ (W)w);
1605}
1606
1607#ifndef SA_RESTART 1667#ifndef SA_RESTART
1608# define SA_RESTART 0 1668# define SA_RESTART 0
1609#endif 1669#endif
1610 1670
1611void 1671void
1612ev_signal_start (EV_P_ struct ev_signal *w) 1672ev_signal_start (EV_P_ ev_signal *w)
1613{ 1673{
1614#if EV_MULTIPLICITY 1674#if EV_MULTIPLICITY
1615 assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 1675 assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1616#endif 1676#endif
1617 if (expect_false (ev_is_active (w))) 1677 if (expect_false (ev_is_active (w)))
1636#endif 1696#endif
1637 } 1697 }
1638} 1698}
1639 1699
1640void 1700void
1641ev_signal_stop (EV_P_ struct ev_signal *w) 1701ev_signal_stop (EV_P_ ev_signal *w)
1642{ 1702{
1643 ev_clear_pending (EV_A_ (W)w); 1703 ev_clear_pending (EV_A_ (W)w);
1644 if (expect_false (!ev_is_active (w))) 1704 if (expect_false (!ev_is_active (w)))
1645 return; 1705 return;
1646 1706
1650 if (!signals [w->signum - 1].head) 1710 if (!signals [w->signum - 1].head)
1651 signal (w->signum, SIG_DFL); 1711 signal (w->signum, SIG_DFL);
1652} 1712}
1653 1713
1654void 1714void
1655ev_child_start (EV_P_ struct ev_child *w) 1715ev_child_start (EV_P_ ev_child *w)
1656{ 1716{
1657#if EV_MULTIPLICITY 1717#if EV_MULTIPLICITY
1658 assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 1718 assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1659#endif 1719#endif
1660 if (expect_false (ev_is_active (w))) 1720 if (expect_false (ev_is_active (w)))
1661 return; 1721 return;
1662 1722
1663 ev_start (EV_A_ (W)w, 1); 1723 ev_start (EV_A_ (W)w, 1);
1664 wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1724 wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1665} 1725}
1666 1726
1667void 1727void
1668ev_child_stop (EV_P_ struct ev_child *w) 1728ev_child_stop (EV_P_ ev_child *w)
1669{ 1729{
1670 ev_clear_pending (EV_A_ (W)w); 1730 ev_clear_pending (EV_A_ (W)w);
1671 if (expect_false (!ev_is_active (w))) 1731 if (expect_false (!ev_is_active (w)))
1672 return; 1732 return;
1673 1733
1674 wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1734 wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1675 ev_stop (EV_A_ (W)w); 1735 ev_stop (EV_A_ (W)w);
1676} 1736}
1677 1737
1678#if EV_MULTIPLICITY 1738#if EV_STAT_ENABLE
1739
1740# ifdef _WIN32
1741# undef lstat
1742# define lstat(a,b) _stati64 (a,b)
1743# endif
1744
1745#define DEF_STAT_INTERVAL 5.0074891
1746#define MIN_STAT_INTERVAL 0.1074891
1747
1748static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
1749
1750#if EV_USE_INOTIFY
1751# define EV_INOTIFY_BUFSIZE 8192
1752
1753static void noinline
1754infy_add (EV_P_ ev_stat *w)
1755{
1756 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);
1757
1758 if (w->wd < 0)
1759 {
1760 ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
1761
1762 /* monitor some parent directory for speedup hints */
1763 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
1764 {
1765 char path [4096];
1766 strcpy (path, w->path);
1767
1768 do
1769 {
1770 int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF
1771 | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);
1772
1773 char *pend = strrchr (path, '/');
1774
1775 if (!pend)
1776 break; /* whoops, no '/', complain to your admin */
1777
1778 *pend = 0;
1779 w->wd = inotify_add_watch (fs_fd, path, mask);
1780 }
1781 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
1782 }
1783 }
1784 else
1785 ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */
1786
1787 if (w->wd >= 0)
1788 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
1789}
1790
1791static void noinline
1792infy_del (EV_P_ ev_stat *w)
1793{
1794 int slot;
1795 int wd = w->wd;
1796
1797 if (wd < 0)
1798 return;
1799
1800 w->wd = -2;
1801 slot = wd & (EV_INOTIFY_HASHSIZE - 1);
1802 wlist_del (&fs_hash [slot].head, (WL)w);
1803
1804 /* remove this watcher, if others are watching it, they will rearm */
1805 inotify_rm_watch (fs_fd, wd);
1806}
1807
1808static void noinline
1809infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
1810{
1811 if (slot < 0)
1812 /* overflow, need to check for all hahs slots */
1813 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
1814 infy_wd (EV_A_ slot, wd, ev);
1815 else
1816 {
1817 WL w_;
1818
1819 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; )
1820 {
1821 ev_stat *w = (ev_stat *)w_;
1822 w_ = w_->next; /* lets us remove this watcher and all before it */
1823
1824 if (w->wd == wd || wd == -1)
1825 {
1826 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
1827 {
1828 w->wd = -1;
1829 infy_add (EV_A_ w); /* re-add, no matter what */
1830 }
1831
1832 stat_timer_cb (EV_A_ &w->timer, 0);
1833 }
1834 }
1835 }
1836}
1837
1679static void 1838static void
1680embed_cb (EV_P_ struct ev_io *io, int revents) 1839infy_cb (EV_P_ ev_io *w, int revents)
1681{ 1840{
1682 struct ev_embed *w = (struct ev_embed *)(((char *)io) - offsetof (struct ev_embed, io)); 1841 char buf [EV_INOTIFY_BUFSIZE];
1842 struct inotify_event *ev = (struct inotify_event *)buf;
1843 int ofs;
1844 int len = read (fs_fd, buf, sizeof (buf));
1683 1845
1846 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)
1847 infy_wd (EV_A_ ev->wd, ev->wd, ev);
1848}
1849
1850void inline_size
1851infy_init (EV_P)
1852{
1853 if (fs_fd != -2)
1854 return;
1855
1856 fs_fd = inotify_init ();
1857
1858 if (fs_fd >= 0)
1859 {
1860 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
1861 ev_set_priority (&fs_w, EV_MAXPRI);
1862 ev_io_start (EV_A_ &fs_w);
1863 }
1864}
1865
1866void inline_size
1867infy_fork (EV_P)
1868{
1869 int slot;
1870
1871 if (fs_fd < 0)
1872 return;
1873
1874 close (fs_fd);
1875 fs_fd = inotify_init ();
1876
1877 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
1878 {
1879 WL w_ = fs_hash [slot].head;
1880 fs_hash [slot].head = 0;
1881
1882 while (w_)
1883 {
1884 ev_stat *w = (ev_stat *)w_;
1885 w_ = w_->next; /* lets us add this watcher */
1886
1887 w->wd = -1;
1888
1889 if (fs_fd >= 0)
1890 infy_add (EV_A_ w); /* re-add, no matter what */
1891 else
1892 ev_timer_start (EV_A_ &w->timer);
1893 }
1894
1895 }
1896}
1897
1898#endif
1899
1900void
1901ev_stat_stat (EV_P_ ev_stat *w)
1902{
1903 if (lstat (w->path, &w->attr) < 0)
1904 w->attr.st_nlink = 0;
1905 else if (!w->attr.st_nlink)
1906 w->attr.st_nlink = 1;
1907}
1908
1909static void noinline
1910stat_timer_cb (EV_P_ ev_timer *w_, int revents)
1911{
1912 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
1913
1914 /* we copy this here each the time so that */
1915 /* prev has the old value when the callback gets invoked */
1916 w->prev = w->attr;
1917 ev_stat_stat (EV_A_ w);
1918
1919 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
1920 if (
1921 w->prev.st_dev != w->attr.st_dev
1922 || w->prev.st_ino != w->attr.st_ino
1923 || w->prev.st_mode != w->attr.st_mode
1924 || w->prev.st_nlink != w->attr.st_nlink
1925 || w->prev.st_uid != w->attr.st_uid
1926 || w->prev.st_gid != w->attr.st_gid
1927 || w->prev.st_rdev != w->attr.st_rdev
1928 || w->prev.st_size != w->attr.st_size
1929 || w->prev.st_atime != w->attr.st_atime
1930 || w->prev.st_mtime != w->attr.st_mtime
1931 || w->prev.st_ctime != w->attr.st_ctime
1932 ) {
1933 #if EV_USE_INOTIFY
1934 infy_del (EV_A_ w);
1935 infy_add (EV_A_ w);
1936 ev_stat_stat (EV_A_ w); /* avoid race... */
1937 #endif
1938
1684 ev_feed_event (EV_A_ (W)w, EV_EMBED); 1939 ev_feed_event (EV_A_ w, EV_STAT);
1940 }
1941}
1942
1943void
1944ev_stat_start (EV_P_ ev_stat *w)
1945{
1946 if (expect_false (ev_is_active (w)))
1947 return;
1948
1949 /* since we use memcmp, we need to clear any padding data etc. */
1950 memset (&w->prev, 0, sizeof (ev_statdata));
1951 memset (&w->attr, 0, sizeof (ev_statdata));
1952
1953 ev_stat_stat (EV_A_ w);
1954
1955 if (w->interval < MIN_STAT_INTERVAL)
1956 w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
1957
1958 ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);
1959 ev_set_priority (&w->timer, ev_priority (w));
1960
1961#if EV_USE_INOTIFY
1962 infy_init (EV_A);
1963
1964 if (fs_fd >= 0)
1965 infy_add (EV_A_ w);
1966 else
1967#endif
1968 ev_timer_start (EV_A_ &w->timer);
1969
1970 ev_start (EV_A_ (W)w, 1);
1971}
1972
1973void
1974ev_stat_stop (EV_P_ ev_stat *w)
1975{
1976 ev_clear_pending (EV_A_ (W)w);
1977 if (expect_false (!ev_is_active (w)))
1978 return;
1979
1980#if EV_USE_INOTIFY
1981 infy_del (EV_A_ w);
1982#endif
1983 ev_timer_stop (EV_A_ &w->timer);
1984
1985 ev_stop (EV_A_ (W)w);
1986}
1987#endif
1988
1989void
1990ev_idle_start (EV_P_ ev_idle *w)
1991{
1992 if (expect_false (ev_is_active (w)))
1993 return;
1994
1995 ev_start (EV_A_ (W)w, ++idlecnt);
1996 array_needsize (ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1997 idles [idlecnt - 1] = w;
1998}
1999
2000void
2001ev_idle_stop (EV_P_ ev_idle *w)
2002{
2003 ev_clear_pending (EV_A_ (W)w);
2004 if (expect_false (!ev_is_active (w)))
2005 return;
2006
2007 {
2008 int active = ((W)w)->active;
2009 idles [active - 1] = idles [--idlecnt];
2010 ((W)idles [active - 1])->active = active;
2011 }
2012
2013 ev_stop (EV_A_ (W)w);
2014}
2015
2016void
2017ev_prepare_start (EV_P_ ev_prepare *w)
2018{
2019 if (expect_false (ev_is_active (w)))
2020 return;
2021
2022 ev_start (EV_A_ (W)w, ++preparecnt);
2023 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
2024 prepares [preparecnt - 1] = w;
2025}
2026
2027void
2028ev_prepare_stop (EV_P_ ev_prepare *w)
2029{
2030 ev_clear_pending (EV_A_ (W)w);
2031 if (expect_false (!ev_is_active (w)))
2032 return;
2033
2034 {
2035 int active = ((W)w)->active;
2036 prepares [active - 1] = prepares [--preparecnt];
2037 ((W)prepares [active - 1])->active = active;
2038 }
2039
2040 ev_stop (EV_A_ (W)w);
2041}
2042
2043void
2044ev_check_start (EV_P_ ev_check *w)
2045{
2046 if (expect_false (ev_is_active (w)))
2047 return;
2048
2049 ev_start (EV_A_ (W)w, ++checkcnt);
2050 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
2051 checks [checkcnt - 1] = w;
2052}
2053
2054void
2055ev_check_stop (EV_P_ ev_check *w)
2056{
2057 ev_clear_pending (EV_A_ (W)w);
2058 if (expect_false (!ev_is_active (w)))
2059 return;
2060
2061 {
2062 int active = ((W)w)->active;
2063 checks [active - 1] = checks [--checkcnt];
2064 ((W)checks [active - 1])->active = active;
2065 }
2066
2067 ev_stop (EV_A_ (W)w);
2068}
2069
2070#if EV_EMBED_ENABLE
2071void noinline
2072ev_embed_sweep (EV_P_ ev_embed *w)
2073{
1685 ev_loop (w->loop, EVLOOP_NONBLOCK); 2074 ev_loop (w->loop, EVLOOP_NONBLOCK);
1686} 2075}
1687 2076
2077static void
2078embed_cb (EV_P_ ev_io *io, int revents)
2079{
2080 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
2081
2082 if (ev_cb (w))
2083 ev_feed_event (EV_A_ (W)w, EV_EMBED);
2084 else
2085 ev_embed_sweep (loop, w);
2086}
2087
1688void 2088void
1689ev_embed_start (EV_P_ struct ev_embed *w) 2089ev_embed_start (EV_P_ ev_embed *w)
1690{ 2090{
1691 if (expect_false (ev_is_active (w))) 2091 if (expect_false (ev_is_active (w)))
1692 return; 2092 return;
1693 2093
1694 { 2094 {
1695 struct ev_loop *loop = w->loop; 2095 struct ev_loop *loop = w->loop;
1696 assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 2096 assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
1697 ev_io_init (&w->io, embed_cb, backend_fd, EV_READ); 2097 ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);
1698 } 2098 }
1699 2099
2100 ev_set_priority (&w->io, ev_priority (w));
1700 ev_io_start (EV_A_ &w->io); 2101 ev_io_start (EV_A_ &w->io);
2102
1701 ev_start (EV_A_ (W)w, 1); 2103 ev_start (EV_A_ (W)w, 1);
1702} 2104}
1703 2105
1704void 2106void
1705ev_embed_stop (EV_P_ struct ev_embed *w) 2107ev_embed_stop (EV_P_ ev_embed *w)
1706{ 2108{
1707 ev_clear_pending (EV_A_ (W)w); 2109 ev_clear_pending (EV_A_ (W)w);
1708 if (expect_false (!ev_is_active (w))) 2110 if (expect_false (!ev_is_active (w)))
1709 return; 2111 return;
1710 2112
1711 ev_io_stop (EV_A_ &w->io); 2113 ev_io_stop (EV_A_ &w->io);
2114
1712 ev_stop (EV_A_ (W)w); 2115 ev_stop (EV_A_ (W)w);
1713} 2116}
1714#endif 2117#endif
1715 2118
2119#if EV_FORK_ENABLE
2120void
2121ev_fork_start (EV_P_ ev_fork *w)
2122{
2123 if (expect_false (ev_is_active (w)))
2124 return;
2125
2126 ev_start (EV_A_ (W)w, ++forkcnt);
2127 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);
2128 forks [forkcnt - 1] = w;
2129}
2130
2131void
2132ev_fork_stop (EV_P_ ev_fork *w)
2133{
2134 ev_clear_pending (EV_A_ (W)w);
2135 if (expect_false (!ev_is_active (w)))
2136 return;
2137
2138 {
2139 int active = ((W)w)->active;
2140 forks [active - 1] = forks [--forkcnt];
2141 ((W)forks [active - 1])->active = active;
2142 }
2143
2144 ev_stop (EV_A_ (W)w);
2145}
2146#endif
2147
1716/*****************************************************************************/ 2148/*****************************************************************************/
1717 2149
1718struct ev_once 2150struct ev_once
1719{ 2151{
1720 struct ev_io io; 2152 ev_io io;
1721 struct ev_timer to; 2153 ev_timer to;
1722 void (*cb)(int revents, void *arg); 2154 void (*cb)(int revents, void *arg);
1723 void *arg; 2155 void *arg;
1724}; 2156};
1725 2157
1726static void 2158static void
1735 2167
1736 cb (revents, arg); 2168 cb (revents, arg);
1737} 2169}
1738 2170
1739static void 2171static void
1740once_cb_io (EV_P_ struct ev_io *w, int revents) 2172once_cb_io (EV_P_ ev_io *w, int revents)
1741{ 2173{
1742 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); 2174 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents);
1743} 2175}
1744 2176
1745static void 2177static void
1746once_cb_to (EV_P_ struct ev_timer *w, int revents) 2178once_cb_to (EV_P_ ev_timer *w, int revents)
1747{ 2179{
1748 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); 2180 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents);
1749} 2181}
1750 2182
1751void 2183void

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