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Comparing libev/ev.c (file contents):
Revision 1.139 by root, Sun Nov 25 09:24:37 2007 UTC vs.
Revision 1.177 by root, Tue Dec 11 15:06:50 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/**/
220
221/*
222 * This is used to avoid floating point rounding problems.
223 * It is added to ev_rt_now when scheduling periodics
224 * to ensure progress, time-wise, even when rounding
225 * errors are against us.
226 * This value is good at least till the year 4000.
227 * Better solutions welcome.
228 */
229#define TIME_EPSILON 0.0001220703125 /* 1/8192 */
178 230
179#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 231#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) */ 232#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 */ 233/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */
183
184#ifdef EV_H
185# include EV_H
186#else
187# include "ev.h"
188#endif
189 234
190#if __GNUC__ >= 3 235#if __GNUC__ >= 3
191# define expect(expr,value) __builtin_expect ((expr),(value)) 236# define expect(expr,value) __builtin_expect ((expr),(value))
192# define inline static inline 237# define noinline __attribute__ ((noinline))
193#else 238#else
194# define expect(expr,value) (expr) 239# define expect(expr,value) (expr)
195# define inline static 240# define noinline
241# if __STDC_VERSION__ < 199901L
242# define inline
243# endif
196#endif 244#endif
197 245
198#define expect_false(expr) expect ((expr) != 0, 0) 246#define expect_false(expr) expect ((expr) != 0, 0)
199#define expect_true(expr) expect ((expr) != 0, 1) 247#define expect_true(expr) expect ((expr) != 0, 1)
248#define inline_size static inline
249
250#if EV_MINIMAL
251# define inline_speed static noinline
252#else
253# define inline_speed static inline
254#endif
200 255
201#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 256#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
202#define ABSPRI(w) ((w)->priority - EV_MINPRI) 257#define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
203 258
204#define EMPTY0 /* required for microsofts broken pseudo-c compiler */ 259#define EMPTY /* required for microsofts broken pseudo-c compiler */
205#define EMPTY2(a,b) /* used to suppress some warnings */ 260#define EMPTY2(a,b) /* used to suppress some warnings */
206 261
207typedef ev_watcher *W; 262typedef ev_watcher *W;
208typedef ev_watcher_list *WL; 263typedef ev_watcher_list *WL;
209typedef ev_watcher_time *WT; 264typedef ev_watcher_time *WT;
216 271
217/*****************************************************************************/ 272/*****************************************************************************/
218 273
219static void (*syserr_cb)(const char *msg); 274static void (*syserr_cb)(const char *msg);
220 275
276void
221void ev_set_syserr_cb (void (*cb)(const char *msg)) 277ev_set_syserr_cb (void (*cb)(const char *msg))
222{ 278{
223 syserr_cb = cb; 279 syserr_cb = cb;
224} 280}
225 281
226static void 282static void noinline
227syserr (const char *msg) 283syserr (const char *msg)
228{ 284{
229 if (!msg) 285 if (!msg)
230 msg = "(libev) system error"; 286 msg = "(libev) system error";
231 287
238 } 294 }
239} 295}
240 296
241static void *(*alloc)(void *ptr, long size); 297static void *(*alloc)(void *ptr, long size);
242 298
299void
243void ev_set_allocator (void *(*cb)(void *ptr, long size)) 300ev_set_allocator (void *(*cb)(void *ptr, long size))
244{ 301{
245 alloc = cb; 302 alloc = cb;
246} 303}
247 304
248static void * 305inline_speed void *
249ev_realloc (void *ptr, long size) 306ev_realloc (void *ptr, long size)
250{ 307{
251 ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); 308 ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
252 309
253 if (!ptr && size) 310 if (!ptr && size)
277typedef struct 334typedef struct
278{ 335{
279 W w; 336 W w;
280 int events; 337 int events;
281} ANPENDING; 338} ANPENDING;
339
340#if EV_USE_INOTIFY
341typedef struct
342{
343 WL head;
344} ANFS;
345#endif
282 346
283#if EV_MULTIPLICITY 347#if EV_MULTIPLICITY
284 348
285 struct ev_loop 349 struct ev_loop
286 { 350 {
320 gettimeofday (&tv, 0); 384 gettimeofday (&tv, 0);
321 return tv.tv_sec + tv.tv_usec * 1e-6; 385 return tv.tv_sec + tv.tv_usec * 1e-6;
322#endif 386#endif
323} 387}
324 388
325inline ev_tstamp 389ev_tstamp inline_size
326get_clock (void) 390get_clock (void)
327{ 391{
328#if EV_USE_MONOTONIC 392#if EV_USE_MONOTONIC
329 if (expect_true (have_monotonic)) 393 if (expect_true (have_monotonic))
330 { 394 {
343{ 407{
344 return ev_rt_now; 408 return ev_rt_now;
345} 409}
346#endif 410#endif
347 411
348#define array_roundsize(type,n) (((n) | 4) & ~3) 412int inline_size
413array_nextsize (int elem, int cur, int cnt)
414{
415 int ncur = cur + 1;
416
417 do
418 ncur <<= 1;
419 while (cnt > ncur);
420
421 /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */
422 if (elem * ncur > 4096)
423 {
424 ncur *= elem;
425 ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095;
426 ncur = ncur - sizeof (void *) * 4;
427 ncur /= elem;
428 }
429
430 return ncur;
431}
432
433static noinline void *
434array_realloc (int elem, void *base, int *cur, int cnt)
435{
436 *cur = array_nextsize (elem, *cur, cnt);
437 return ev_realloc (base, elem * *cur);
438}
349 439
350#define array_needsize(type,base,cur,cnt,init) \ 440#define array_needsize(type,base,cur,cnt,init) \
351 if (expect_false ((cnt) > cur)) \ 441 if (expect_false ((cnt) > (cur))) \
352 { \ 442 { \
353 int newcnt = cur; \ 443 int ocur_ = (cur); \
354 do \ 444 (base) = (type *)array_realloc \
355 { \ 445 (sizeof (type), (base), &(cur), (cnt)); \
356 newcnt = array_roundsize (type, newcnt << 1); \ 446 init ((base) + (ocur_), (cur) - ocur_); \
357 } \
358 while ((cnt) > newcnt); \
359 \
360 base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\
361 init (base + cur, newcnt - cur); \
362 cur = newcnt; \
363 } 447 }
364 448
449#if 0
365#define array_slim(type,stem) \ 450#define array_slim(type,stem) \
366 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ 451 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
367 { \ 452 { \
368 stem ## max = array_roundsize (stem ## cnt >> 1); \ 453 stem ## max = array_roundsize (stem ## cnt >> 1); \
369 base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ 454 base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\
370 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ 455 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
371 } 456 }
457#endif
372 458
373#define array_free(stem, idx) \ 459#define array_free(stem, idx) \
374 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; 460 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
375 461
376/*****************************************************************************/ 462/*****************************************************************************/
377 463
378static void 464void noinline
465ev_feed_event (EV_P_ void *w, int revents)
466{
467 W w_ = (W)w;
468 int pri = ABSPRI (w_);
469
470 if (expect_false (w_->pending))
471 pendings [pri][w_->pending - 1].events |= revents;
472 else
473 {
474 w_->pending = ++pendingcnt [pri];
475 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
476 pendings [pri][w_->pending - 1].w = w_;
477 pendings [pri][w_->pending - 1].events = revents;
478 }
479}
480
481void inline_size
482queue_events (EV_P_ W *events, int eventcnt, int type)
483{
484 int i;
485
486 for (i = 0; i < eventcnt; ++i)
487 ev_feed_event (EV_A_ events [i], type);
488}
489
490/*****************************************************************************/
491
492void inline_size
379anfds_init (ANFD *base, int count) 493anfds_init (ANFD *base, int count)
380{ 494{
381 while (count--) 495 while (count--)
382 { 496 {
383 base->head = 0; 497 base->head = 0;
386 500
387 ++base; 501 ++base;
388 } 502 }
389} 503}
390 504
391void 505void inline_speed
392ev_feed_event (EV_P_ void *w, int revents)
393{
394 W w_ = (W)w;
395
396 if (expect_false (w_->pending))
397 {
398 pendings [ABSPRI (w_)][w_->pending - 1].events |= revents;
399 return;
400 }
401
402 w_->pending = ++pendingcnt [ABSPRI (w_)];
403 array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
404 pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
405 pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
406}
407
408static void
409queue_events (EV_P_ W *events, int eventcnt, int type)
410{
411 int i;
412
413 for (i = 0; i < eventcnt; ++i)
414 ev_feed_event (EV_A_ events [i], type);
415}
416
417inline void
418fd_event (EV_P_ int fd, int revents) 506fd_event (EV_P_ int fd, int revents)
419{ 507{
420 ANFD *anfd = anfds + fd; 508 ANFD *anfd = anfds + fd;
421 ev_io *w; 509 ev_io *w;
422 510
430} 518}
431 519
432void 520void
433ev_feed_fd_event (EV_P_ int fd, int revents) 521ev_feed_fd_event (EV_P_ int fd, int revents)
434{ 522{
523 if (fd >= 0 && fd < anfdmax)
435 fd_event (EV_A_ fd, revents); 524 fd_event (EV_A_ fd, revents);
436} 525}
437 526
438/*****************************************************************************/ 527void inline_size
439
440inline void
441fd_reify (EV_P) 528fd_reify (EV_P)
442{ 529{
443 int i; 530 int i;
444 531
445 for (i = 0; i < fdchangecnt; ++i) 532 for (i = 0; i < fdchangecnt; ++i)
469 } 556 }
470 557
471 fdchangecnt = 0; 558 fdchangecnt = 0;
472} 559}
473 560
474static void 561void inline_size
475fd_change (EV_P_ int fd) 562fd_change (EV_P_ int fd)
476{ 563{
477 if (expect_false (anfds [fd].reify)) 564 if (expect_false (anfds [fd].reify))
478 return; 565 return;
479 566
482 ++fdchangecnt; 569 ++fdchangecnt;
483 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 570 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
484 fdchanges [fdchangecnt - 1] = fd; 571 fdchanges [fdchangecnt - 1] = fd;
485} 572}
486 573
487static void 574void inline_speed
488fd_kill (EV_P_ int fd) 575fd_kill (EV_P_ int fd)
489{ 576{
490 ev_io *w; 577 ev_io *w;
491 578
492 while ((w = (ev_io *)anfds [fd].head)) 579 while ((w = (ev_io *)anfds [fd].head))
494 ev_io_stop (EV_A_ w); 581 ev_io_stop (EV_A_ w);
495 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 582 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
496 } 583 }
497} 584}
498 585
499inline int 586int inline_size
500fd_valid (int fd) 587fd_valid (int fd)
501{ 588{
502#ifdef _WIN32 589#ifdef _WIN32
503 return _get_osfhandle (fd) != -1; 590 return _get_osfhandle (fd) != -1;
504#else 591#else
505 return fcntl (fd, F_GETFD) != -1; 592 return fcntl (fd, F_GETFD) != -1;
506#endif 593#endif
507} 594}
508 595
509/* called on EBADF to verify fds */ 596/* called on EBADF to verify fds */
510static void 597static void noinline
511fd_ebadf (EV_P) 598fd_ebadf (EV_P)
512{ 599{
513 int fd; 600 int fd;
514 601
515 for (fd = 0; fd < anfdmax; ++fd) 602 for (fd = 0; fd < anfdmax; ++fd)
517 if (!fd_valid (fd) == -1 && errno == EBADF) 604 if (!fd_valid (fd) == -1 && errno == EBADF)
518 fd_kill (EV_A_ fd); 605 fd_kill (EV_A_ fd);
519} 606}
520 607
521/* called on ENOMEM in select/poll to kill some fds and retry */ 608/* called on ENOMEM in select/poll to kill some fds and retry */
522static void 609static void noinline
523fd_enomem (EV_P) 610fd_enomem (EV_P)
524{ 611{
525 int fd; 612 int fd;
526 613
527 for (fd = anfdmax; fd--; ) 614 for (fd = anfdmax; fd--; )
531 return; 618 return;
532 } 619 }
533} 620}
534 621
535/* usually called after fork if backend needs to re-arm all fds from scratch */ 622/* usually called after fork if backend needs to re-arm all fds from scratch */
536static void 623static void noinline
537fd_rearm_all (EV_P) 624fd_rearm_all (EV_P)
538{ 625{
539 int fd; 626 int fd;
540 627
541 /* this should be highly optimised to not do anything but set a flag */
542 for (fd = 0; fd < anfdmax; ++fd) 628 for (fd = 0; fd < anfdmax; ++fd)
543 if (anfds [fd].events) 629 if (anfds [fd].events)
544 { 630 {
545 anfds [fd].events = 0; 631 anfds [fd].events = 0;
546 fd_change (EV_A_ fd); 632 fd_change (EV_A_ fd);
547 } 633 }
548} 634}
549 635
550/*****************************************************************************/ 636/*****************************************************************************/
551 637
552static void 638void inline_speed
553upheap (WT *heap, int k) 639upheap (WT *heap, int k)
554{ 640{
555 WT w = heap [k]; 641 WT w = heap [k];
556 642
557 while (k && heap [k >> 1]->at > w->at) 643 while (k && heap [k >> 1]->at > w->at)
564 heap [k] = w; 650 heap [k] = w;
565 ((W)heap [k])->active = k + 1; 651 ((W)heap [k])->active = k + 1;
566 652
567} 653}
568 654
569static void 655void inline_speed
570downheap (WT *heap, int N, int k) 656downheap (WT *heap, int N, int k)
571{ 657{
572 WT w = heap [k]; 658 WT w = heap [k];
573 659
574 while (k < (N >> 1)) 660 while (k < (N >> 1))
588 674
589 heap [k] = w; 675 heap [k] = w;
590 ((W)heap [k])->active = k + 1; 676 ((W)heap [k])->active = k + 1;
591} 677}
592 678
593inline void 679void inline_size
594adjustheap (WT *heap, int N, int k) 680adjustheap (WT *heap, int N, int k)
595{ 681{
596 upheap (heap, k); 682 upheap (heap, k);
597 downheap (heap, N, k); 683 downheap (heap, N, k);
598} 684}
610 696
611static int sigpipe [2]; 697static int sigpipe [2];
612static sig_atomic_t volatile gotsig; 698static sig_atomic_t volatile gotsig;
613static ev_io sigev; 699static ev_io sigev;
614 700
615static void 701void inline_size
616signals_init (ANSIG *base, int count) 702signals_init (ANSIG *base, int count)
617{ 703{
618 while (count--) 704 while (count--)
619 { 705 {
620 base->head = 0; 706 base->head = 0;
640 write (sigpipe [1], &signum, 1); 726 write (sigpipe [1], &signum, 1);
641 errno = old_errno; 727 errno = old_errno;
642 } 728 }
643} 729}
644 730
645void 731void noinline
646ev_feed_signal_event (EV_P_ int signum) 732ev_feed_signal_event (EV_P_ int signum)
647{ 733{
648 WL w; 734 WL w;
649 735
650#if EV_MULTIPLICITY 736#if EV_MULTIPLICITY
673 for (signum = signalmax; signum--; ) 759 for (signum = signalmax; signum--; )
674 if (signals [signum].gotsig) 760 if (signals [signum].gotsig)
675 ev_feed_signal_event (EV_A_ signum + 1); 761 ev_feed_signal_event (EV_A_ signum + 1);
676} 762}
677 763
678static void 764void inline_speed
679fd_intern (int fd) 765fd_intern (int fd)
680{ 766{
681#ifdef _WIN32 767#ifdef _WIN32
682 int arg = 1; 768 int arg = 1;
683 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); 769 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
685 fcntl (fd, F_SETFD, FD_CLOEXEC); 771 fcntl (fd, F_SETFD, FD_CLOEXEC);
686 fcntl (fd, F_SETFL, O_NONBLOCK); 772 fcntl (fd, F_SETFL, O_NONBLOCK);
687#endif 773#endif
688} 774}
689 775
690static void 776static void noinline
691siginit (EV_P) 777siginit (EV_P)
692{ 778{
693 fd_intern (sigpipe [0]); 779 fd_intern (sigpipe [0]);
694 fd_intern (sigpipe [1]); 780 fd_intern (sigpipe [1]);
695 781
698 ev_unref (EV_A); /* child watcher should not keep loop alive */ 784 ev_unref (EV_A); /* child watcher should not keep loop alive */
699} 785}
700 786
701/*****************************************************************************/ 787/*****************************************************************************/
702 788
703static ev_child *childs [PID_HASHSIZE]; 789static ev_child *childs [EV_PID_HASHSIZE];
704 790
705#ifndef _WIN32 791#ifndef _WIN32
706 792
707static ev_signal childev; 793static ev_signal childev;
794
795void inline_speed
796child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)
797{
798 ev_child *w;
799
800 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
801 if (w->pid == pid || !w->pid)
802 {
803 ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */
804 w->rpid = pid;
805 w->rstatus = status;
806 ev_feed_event (EV_A_ (W)w, EV_CHILD);
807 }
808}
708 809
709#ifndef WCONTINUED 810#ifndef WCONTINUED
710# define WCONTINUED 0 811# define WCONTINUED 0
711#endif 812#endif
712 813
713static void 814static void
714child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)
715{
716 ev_child *w;
717
718 for (w = (ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
719 if (w->pid == pid || !w->pid)
720 {
721 ev_priority (w) = ev_priority (sw); /* need to do it *now* */
722 w->rpid = pid;
723 w->rstatus = status;
724 ev_feed_event (EV_A_ (W)w, EV_CHILD);
725 }
726}
727
728static void
729childcb (EV_P_ ev_signal *sw, int revents) 815childcb (EV_P_ ev_signal *sw, int revents)
730{ 816{
731 int pid, status; 817 int pid, status;
732 818
819 /* some systems define WCONTINUED but then fail to support it (linux 2.4) */
733 if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) 820 if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))
734 { 821 if (!WCONTINUED
822 || errno != EINVAL
823 || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED)))
824 return;
825
735 /* make sure we are called again until all childs have been reaped */ 826 /* 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 */ 827 /* 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); 828 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
738 829
739 child_reap (EV_A_ sw, pid, pid, status); 830 child_reap (EV_A_ sw, pid, pid, status);
831 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 */ 832 child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
741 }
742} 833}
743 834
744#endif 835#endif
745 836
746/*****************************************************************************/ 837/*****************************************************************************/
772{ 863{
773 return EV_VERSION_MINOR; 864 return EV_VERSION_MINOR;
774} 865}
775 866
776/* return true if we are running with elevated privileges and should ignore env variables */ 867/* return true if we are running with elevated privileges and should ignore env variables */
777static int 868int inline_size
778enable_secure (void) 869enable_secure (void)
779{ 870{
780#ifdef _WIN32 871#ifdef _WIN32
781 return 0; 872 return 0;
782#else 873#else
829ev_backend (EV_P) 920ev_backend (EV_P)
830{ 921{
831 return backend; 922 return backend;
832} 923}
833 924
834static void 925unsigned int
926ev_loop_count (EV_P)
927{
928 return loop_count;
929}
930
931static void noinline
835loop_init (EV_P_ unsigned int flags) 932loop_init (EV_P_ unsigned int flags)
836{ 933{
837 if (!backend) 934 if (!backend)
838 { 935 {
839#if EV_USE_MONOTONIC 936#if EV_USE_MONOTONIC
847 ev_rt_now = ev_time (); 944 ev_rt_now = ev_time ();
848 mn_now = get_clock (); 945 mn_now = get_clock ();
849 now_floor = mn_now; 946 now_floor = mn_now;
850 rtmn_diff = ev_rt_now - mn_now; 947 rtmn_diff = ev_rt_now - mn_now;
851 948
949 /* pid check not overridable via env */
950#ifndef _WIN32
951 if (flags & EVFLAG_FORKCHECK)
952 curpid = getpid ();
953#endif
954
852 if (!(flags & EVFLAG_NOENV) 955 if (!(flags & EVFLAG_NOENV)
853 && !enable_secure () 956 && !enable_secure ()
854 && getenv ("LIBEV_FLAGS")) 957 && getenv ("LIBEV_FLAGS"))
855 flags = atoi (getenv ("LIBEV_FLAGS")); 958 flags = atoi (getenv ("LIBEV_FLAGS"));
856 959
857 if (!(flags & 0x0000ffffUL)) 960 if (!(flags & 0x0000ffffUL))
858 flags |= ev_recommended_backends (); 961 flags |= ev_recommended_backends ();
859 962
860 backend = 0; 963 backend = 0;
964 backend_fd = -1;
965#if EV_USE_INOTIFY
966 fs_fd = -2;
967#endif
968
861#if EV_USE_PORT 969#if EV_USE_PORT
862 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 970 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
863#endif 971#endif
864#if EV_USE_KQUEUE 972#if EV_USE_KQUEUE
865 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 973 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
877 ev_init (&sigev, sigcb); 985 ev_init (&sigev, sigcb);
878 ev_set_priority (&sigev, EV_MAXPRI); 986 ev_set_priority (&sigev, EV_MAXPRI);
879 } 987 }
880} 988}
881 989
882static void 990static void noinline
883loop_destroy (EV_P) 991loop_destroy (EV_P)
884{ 992{
885 int i; 993 int i;
994
995#if EV_USE_INOTIFY
996 if (fs_fd >= 0)
997 close (fs_fd);
998#endif
999
1000 if (backend_fd >= 0)
1001 close (backend_fd);
886 1002
887#if EV_USE_PORT 1003#if EV_USE_PORT
888 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 1004 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
889#endif 1005#endif
890#if EV_USE_KQUEUE 1006#if EV_USE_KQUEUE
899#if EV_USE_SELECT 1015#if EV_USE_SELECT
900 if (backend == EVBACKEND_SELECT) select_destroy (EV_A); 1016 if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
901#endif 1017#endif
902 1018
903 for (i = NUMPRI; i--; ) 1019 for (i = NUMPRI; i--; )
1020 {
904 array_free (pending, [i]); 1021 array_free (pending, [i]);
1022#if EV_IDLE_ENABLE
1023 array_free (idle, [i]);
1024#endif
1025 }
905 1026
906 /* have to use the microsoft-never-gets-it-right macro */ 1027 /* have to use the microsoft-never-gets-it-right macro */
907 array_free (fdchange, EMPTY0); 1028 array_free (fdchange, EMPTY);
908 array_free (timer, EMPTY0); 1029 array_free (timer, EMPTY);
909#if EV_PERIODICS 1030#if EV_PERIODIC_ENABLE
910 array_free (periodic, EMPTY0); 1031 array_free (periodic, EMPTY);
911#endif 1032#endif
912 array_free (idle, EMPTY0);
913 array_free (prepare, EMPTY0); 1033 array_free (prepare, EMPTY);
914 array_free (check, EMPTY0); 1034 array_free (check, EMPTY);
915 1035
916 backend = 0; 1036 backend = 0;
917} 1037}
918 1038
919static void 1039void inline_size infy_fork (EV_P);
1040
1041void inline_size
920loop_fork (EV_P) 1042loop_fork (EV_P)
921{ 1043{
922#if EV_USE_PORT 1044#if EV_USE_PORT
923 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 1045 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
924#endif 1046#endif
925#if EV_USE_KQUEUE 1047#if EV_USE_KQUEUE
926 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); 1048 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
927#endif 1049#endif
928#if EV_USE_EPOLL 1050#if EV_USE_EPOLL
929 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); 1051 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
1052#endif
1053#if EV_USE_INOTIFY
1054 infy_fork (EV_A);
930#endif 1055#endif
931 1056
932 if (ev_is_active (&sigev)) 1057 if (ev_is_active (&sigev))
933 { 1058 {
934 /* default loop */ 1059 /* default loop */
1050 postfork = 1; 1175 postfork = 1;
1051} 1176}
1052 1177
1053/*****************************************************************************/ 1178/*****************************************************************************/
1054 1179
1055static int 1180void
1056any_pending (EV_P) 1181ev_invoke (EV_P_ void *w, int revents)
1057{ 1182{
1058 int pri; 1183 EV_CB_INVOKE ((W)w, revents);
1059
1060 for (pri = NUMPRI; pri--; )
1061 if (pendingcnt [pri])
1062 return 1;
1063
1064 return 0;
1065} 1184}
1066 1185
1067inline void 1186void inline_speed
1068call_pending (EV_P) 1187call_pending (EV_P)
1069{ 1188{
1070 int pri; 1189 int pri;
1071 1190
1072 for (pri = NUMPRI; pri--; ) 1191 for (pri = NUMPRI; pri--; )
1074 { 1193 {
1075 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 1194 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1076 1195
1077 if (expect_true (p->w)) 1196 if (expect_true (p->w))
1078 { 1197 {
1079 assert (("non-pending watcher on pending list", p->w->pending)); 1198 /*assert (("non-pending watcher on pending list", p->w->pending));*/
1080 1199
1081 p->w->pending = 0; 1200 p->w->pending = 0;
1082 EV_CB_INVOKE (p->w, p->events); 1201 EV_CB_INVOKE (p->w, p->events);
1083 } 1202 }
1084 } 1203 }
1085} 1204}
1086 1205
1087inline void 1206void inline_size
1088timers_reify (EV_P) 1207timers_reify (EV_P)
1089{ 1208{
1090 while (timercnt && ((WT)timers [0])->at <= mn_now) 1209 while (timercnt && ((WT)timers [0])->at <= mn_now)
1091 { 1210 {
1092 ev_timer *w = timers [0]; 1211 ev_timer *w = timers [0];
1093 1212
1094 assert (("inactive timer on timer heap detected", ev_is_active (w))); 1213 /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
1095 1214
1096 /* first reschedule or stop timer */ 1215 /* first reschedule or stop timer */
1097 if (w->repeat) 1216 if (w->repeat)
1098 { 1217 {
1099 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); 1218 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1109 1228
1110 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); 1229 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
1111 } 1230 }
1112} 1231}
1113 1232
1114#if EV_PERIODICS 1233#if EV_PERIODIC_ENABLE
1115inline void 1234void inline_size
1116periodics_reify (EV_P) 1235periodics_reify (EV_P)
1117{ 1236{
1118 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) 1237 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1119 { 1238 {
1120 ev_periodic *w = periodics [0]; 1239 ev_periodic *w = periodics [0];
1121 1240
1122 assert (("inactive timer on periodic heap detected", ev_is_active (w))); 1241 /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
1123 1242
1124 /* first reschedule or stop timer */ 1243 /* first reschedule or stop timer */
1125 if (w->reschedule_cb) 1244 if (w->reschedule_cb)
1126 { 1245 {
1127 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); 1246 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON);
1128 assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); 1247 assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1129 downheap ((WT *)periodics, periodiccnt, 0); 1248 downheap ((WT *)periodics, periodiccnt, 0);
1130 } 1249 }
1131 else if (w->interval) 1250 else if (w->interval)
1132 { 1251 {
1133 ((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; 1252 ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1253 if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval;
1134 assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); 1254 assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
1135 downheap ((WT *)periodics, periodiccnt, 0); 1255 downheap ((WT *)periodics, periodiccnt, 0);
1136 } 1256 }
1137 else 1257 else
1138 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 1258 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1139 1259
1140 ev_feed_event (EV_A_ (W)w, EV_PERIODIC); 1260 ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
1141 } 1261 }
1142} 1262}
1143 1263
1144static void 1264static void noinline
1145periodics_reschedule (EV_P) 1265periodics_reschedule (EV_P)
1146{ 1266{
1147 int i; 1267 int i;
1148 1268
1149 /* adjust periodics after time jump */ 1269 /* adjust periodics after time jump */
1152 ev_periodic *w = periodics [i]; 1272 ev_periodic *w = periodics [i];
1153 1273
1154 if (w->reschedule_cb) 1274 if (w->reschedule_cb)
1155 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); 1275 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1156 else if (w->interval) 1276 else if (w->interval)
1157 ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; 1277 ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1158 } 1278 }
1159 1279
1160 /* now rebuild the heap */ 1280 /* now rebuild the heap */
1161 for (i = periodiccnt >> 1; i--; ) 1281 for (i = periodiccnt >> 1; i--; )
1162 downheap ((WT *)periodics, periodiccnt, i); 1282 downheap ((WT *)periodics, periodiccnt, i);
1163} 1283}
1164#endif 1284#endif
1165 1285
1166inline int 1286#if EV_IDLE_ENABLE
1287void inline_size
1288idle_reify (EV_P)
1289{
1290 if (expect_false (idleall))
1291 {
1292 int pri;
1293
1294 for (pri = NUMPRI; pri--; )
1295 {
1296 if (pendingcnt [pri])
1297 break;
1298
1299 if (idlecnt [pri])
1300 {
1301 queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE);
1302 break;
1303 }
1304 }
1305 }
1306}
1307#endif
1308
1309int inline_size
1167time_update_monotonic (EV_P) 1310time_update_monotonic (EV_P)
1168{ 1311{
1169 mn_now = get_clock (); 1312 mn_now = get_clock ();
1170 1313
1171 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) 1314 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1179 ev_rt_now = ev_time (); 1322 ev_rt_now = ev_time ();
1180 return 1; 1323 return 1;
1181 } 1324 }
1182} 1325}
1183 1326
1184inline void 1327void inline_size
1185time_update (EV_P) 1328time_update (EV_P)
1186{ 1329{
1187 int i; 1330 int i;
1188 1331
1189#if EV_USE_MONOTONIC 1332#if EV_USE_MONOTONIC
1194 ev_tstamp odiff = rtmn_diff; 1337 ev_tstamp odiff = rtmn_diff;
1195 1338
1196 /* loop a few times, before making important decisions. 1339 /* loop a few times, before making important decisions.
1197 * on the choice of "4": one iteration isn't enough, 1340 * on the choice of "4": one iteration isn't enough,
1198 * in case we get preempted during the calls to 1341 * in case we get preempted during the calls to
1199 * ev_time and get_clock. a second call is almost guarenteed 1342 * ev_time and get_clock. a second call is almost guaranteed
1200 * to succeed in that case, though. and looping a few more times 1343 * to succeed in that case, though. and looping a few more times
1201 * doesn't hurt either as we only do this on time-jumps or 1344 * doesn't hurt either as we only do this on time-jumps or
1202 * in the unlikely event of getting preempted here. 1345 * in the unlikely event of having been preempted here.
1203 */ 1346 */
1204 for (i = 4; --i; ) 1347 for (i = 4; --i; )
1205 { 1348 {
1206 rtmn_diff = ev_rt_now - mn_now; 1349 rtmn_diff = ev_rt_now - mn_now;
1207 1350
1211 ev_rt_now = ev_time (); 1354 ev_rt_now = ev_time ();
1212 mn_now = get_clock (); 1355 mn_now = get_clock ();
1213 now_floor = mn_now; 1356 now_floor = mn_now;
1214 } 1357 }
1215 1358
1216# if EV_PERIODICS 1359# if EV_PERIODIC_ENABLE
1217 periodics_reschedule (EV_A); 1360 periodics_reschedule (EV_A);
1218# endif 1361# endif
1219 /* no timer adjustment, as the monotonic clock doesn't jump */ 1362 /* no timer adjustment, as the monotonic clock doesn't jump */
1220 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ 1363 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1221 } 1364 }
1225 { 1368 {
1226 ev_rt_now = ev_time (); 1369 ev_rt_now = ev_time ();
1227 1370
1228 if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) 1371 if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
1229 { 1372 {
1230#if EV_PERIODICS 1373#if EV_PERIODIC_ENABLE
1231 periodics_reschedule (EV_A); 1374 periodics_reschedule (EV_A);
1232#endif 1375#endif
1233
1234 /* adjust timers. this is easy, as the offset is the same for all */ 1376 /* adjust timers. this is easy, as the offset is the same for all of them */
1235 for (i = 0; i < timercnt; ++i) 1377 for (i = 0; i < timercnt; ++i)
1236 ((WT)timers [i])->at += ev_rt_now - mn_now; 1378 ((WT)timers [i])->at += ev_rt_now - mn_now;
1237 } 1379 }
1238 1380
1239 mn_now = ev_rt_now; 1381 mn_now = ev_rt_now;
1259{ 1401{
1260 loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) 1402 loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)
1261 ? EVUNLOOP_ONE 1403 ? EVUNLOOP_ONE
1262 : EVUNLOOP_CANCEL; 1404 : EVUNLOOP_CANCEL;
1263 1405
1264 while (activecnt) 1406 call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */
1407
1408 do
1265 { 1409 {
1410#ifndef _WIN32
1411 if (expect_false (curpid)) /* penalise the forking check even more */
1412 if (expect_false (getpid () != curpid))
1413 {
1414 curpid = getpid ();
1415 postfork = 1;
1416 }
1417#endif
1418
1419#if EV_FORK_ENABLE
1420 /* we might have forked, so queue fork handlers */
1421 if (expect_false (postfork))
1422 if (forkcnt)
1423 {
1424 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
1425 call_pending (EV_A);
1426 }
1427#endif
1428
1266 /* queue check watchers (and execute them) */ 1429 /* queue prepare watchers (and execute them) */
1267 if (expect_false (preparecnt)) 1430 if (expect_false (preparecnt))
1268 { 1431 {
1269 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 1432 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1270 call_pending (EV_A); 1433 call_pending (EV_A);
1271 } 1434 }
1272 1435
1436 if (expect_false (!activecnt))
1437 break;
1438
1273 /* we might have forked, so reify kernel state if necessary */ 1439 /* we might have forked, so reify kernel state if necessary */
1274 if (expect_false (postfork)) 1440 if (expect_false (postfork))
1275 loop_fork (EV_A); 1441 loop_fork (EV_A);
1276 1442
1277 /* update fd-related kernel structures */ 1443 /* update fd-related kernel structures */
1278 fd_reify (EV_A); 1444 fd_reify (EV_A);
1279 1445
1280 /* calculate blocking time */ 1446 /* calculate blocking time */
1281 { 1447 {
1282 double block; 1448 ev_tstamp block;
1283 1449
1284 if (flags & EVLOOP_NONBLOCK || idlecnt) 1450 if (expect_false (flags & EVLOOP_NONBLOCK || idleall || !activecnt))
1285 block = 0.; /* do not block at all */ 1451 block = 0.; /* do not block at all */
1286 else 1452 else
1287 { 1453 {
1288 /* update time to cancel out callback processing overhead */ 1454 /* update time to cancel out callback processing overhead */
1289#if EV_USE_MONOTONIC 1455#if EV_USE_MONOTONIC
1302 { 1468 {
1303 ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; 1469 ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1304 if (block > to) block = to; 1470 if (block > to) block = to;
1305 } 1471 }
1306 1472
1307#if EV_PERIODICS 1473#if EV_PERIODIC_ENABLE
1308 if (periodiccnt) 1474 if (periodiccnt)
1309 { 1475 {
1310 ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; 1476 ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1311 if (block > to) block = to; 1477 if (block > to) block = to;
1312 } 1478 }
1313#endif 1479#endif
1314 1480
1315 if (expect_false (block < 0.)) block = 0.; 1481 if (expect_false (block < 0.)) block = 0.;
1316 } 1482 }
1317 1483
1484 ++loop_count;
1318 backend_poll (EV_A_ block); 1485 backend_poll (EV_A_ block);
1319 } 1486 }
1320 1487
1321 /* update ev_rt_now, do magic */ 1488 /* update ev_rt_now, do magic */
1322 time_update (EV_A); 1489 time_update (EV_A);
1323 1490
1324 /* queue pending timers and reschedule them */ 1491 /* queue pending timers and reschedule them */
1325 timers_reify (EV_A); /* relative timers called last */ 1492 timers_reify (EV_A); /* relative timers called last */
1326#if EV_PERIODICS 1493#if EV_PERIODIC_ENABLE
1327 periodics_reify (EV_A); /* absolute timers called first */ 1494 periodics_reify (EV_A); /* absolute timers called first */
1328#endif 1495#endif
1329 1496
1497#if EV_IDLE_ENABLE
1330 /* queue idle watchers unless other events are pending */ 1498 /* queue idle watchers unless other events are pending */
1331 if (idlecnt && !any_pending (EV_A)) 1499 idle_reify (EV_A);
1332 queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); 1500#endif
1333 1501
1334 /* queue check watchers, to be executed first */ 1502 /* queue check watchers, to be executed first */
1335 if (expect_false (checkcnt)) 1503 if (expect_false (checkcnt))
1336 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 1504 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1337 1505
1338 call_pending (EV_A); 1506 call_pending (EV_A);
1339 1507
1340 if (expect_false (loop_done))
1341 break;
1342 } 1508 }
1509 while (expect_true (activecnt && !loop_done));
1343 1510
1344 if (loop_done == EVUNLOOP_ONE) 1511 if (loop_done == EVUNLOOP_ONE)
1345 loop_done = EVUNLOOP_CANCEL; 1512 loop_done = EVUNLOOP_CANCEL;
1346} 1513}
1347 1514
1351 loop_done = how; 1518 loop_done = how;
1352} 1519}
1353 1520
1354/*****************************************************************************/ 1521/*****************************************************************************/
1355 1522
1356inline void 1523void inline_size
1357wlist_add (WL *head, WL elem) 1524wlist_add (WL *head, WL elem)
1358{ 1525{
1359 elem->next = *head; 1526 elem->next = *head;
1360 *head = elem; 1527 *head = elem;
1361} 1528}
1362 1529
1363inline void 1530void inline_size
1364wlist_del (WL *head, WL elem) 1531wlist_del (WL *head, WL elem)
1365{ 1532{
1366 while (*head) 1533 while (*head)
1367 { 1534 {
1368 if (*head == elem) 1535 if (*head == elem)
1373 1540
1374 head = &(*head)->next; 1541 head = &(*head)->next;
1375 } 1542 }
1376} 1543}
1377 1544
1378inline void 1545void inline_speed
1379ev_clear_pending (EV_P_ W w) 1546clear_pending (EV_P_ W w)
1380{ 1547{
1381 if (w->pending) 1548 if (w->pending)
1382 { 1549 {
1383 pendings [ABSPRI (w)][w->pending - 1].w = 0; 1550 pendings [ABSPRI (w)][w->pending - 1].w = 0;
1384 w->pending = 0; 1551 w->pending = 0;
1385 } 1552 }
1386} 1553}
1387 1554
1388inline void 1555int
1556ev_clear_pending (EV_P_ void *w)
1557{
1558 W w_ = (W)w;
1559 int pending = w_->pending;
1560
1561 if (expect_true (pending))
1562 {
1563 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
1564 w_->pending = 0;
1565 p->w = 0;
1566 return p->events;
1567 }
1568 else
1569 return 0;
1570}
1571
1572void inline_size
1573pri_adjust (EV_P_ W w)
1574{
1575 int pri = w->priority;
1576 pri = pri < EV_MINPRI ? EV_MINPRI : pri;
1577 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
1578 w->priority = pri;
1579}
1580
1581void inline_speed
1389ev_start (EV_P_ W w, int active) 1582ev_start (EV_P_ W w, int active)
1390{ 1583{
1391 if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; 1584 pri_adjust (EV_A_ w);
1392 if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
1393
1394 w->active = active; 1585 w->active = active;
1395 ev_ref (EV_A); 1586 ev_ref (EV_A);
1396} 1587}
1397 1588
1398inline void 1589void inline_size
1399ev_stop (EV_P_ W w) 1590ev_stop (EV_P_ W w)
1400{ 1591{
1401 ev_unref (EV_A); 1592 ev_unref (EV_A);
1402 w->active = 0; 1593 w->active = 0;
1403} 1594}
1404 1595
1405/*****************************************************************************/ 1596/*****************************************************************************/
1406 1597
1407void 1598void noinline
1408ev_io_start (EV_P_ ev_io *w) 1599ev_io_start (EV_P_ ev_io *w)
1409{ 1600{
1410 int fd = w->fd; 1601 int fd = w->fd;
1411 1602
1412 if (expect_false (ev_is_active (w))) 1603 if (expect_false (ev_is_active (w)))
1419 wlist_add ((WL *)&anfds[fd].head, (WL)w); 1610 wlist_add ((WL *)&anfds[fd].head, (WL)w);
1420 1611
1421 fd_change (EV_A_ fd); 1612 fd_change (EV_A_ fd);
1422} 1613}
1423 1614
1424void 1615void noinline
1425ev_io_stop (EV_P_ ev_io *w) 1616ev_io_stop (EV_P_ ev_io *w)
1426{ 1617{
1427 ev_clear_pending (EV_A_ (W)w); 1618 clear_pending (EV_A_ (W)w);
1428 if (expect_false (!ev_is_active (w))) 1619 if (expect_false (!ev_is_active (w)))
1429 return; 1620 return;
1430 1621
1431 assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); 1622 assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1432 1623
1434 ev_stop (EV_A_ (W)w); 1625 ev_stop (EV_A_ (W)w);
1435 1626
1436 fd_change (EV_A_ w->fd); 1627 fd_change (EV_A_ w->fd);
1437} 1628}
1438 1629
1439void 1630void noinline
1440ev_timer_start (EV_P_ ev_timer *w) 1631ev_timer_start (EV_P_ ev_timer *w)
1441{ 1632{
1442 if (expect_false (ev_is_active (w))) 1633 if (expect_false (ev_is_active (w)))
1443 return; 1634 return;
1444 1635
1449 ev_start (EV_A_ (W)w, ++timercnt); 1640 ev_start (EV_A_ (W)w, ++timercnt);
1450 array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2); 1641 array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2);
1451 timers [timercnt - 1] = w; 1642 timers [timercnt - 1] = w;
1452 upheap ((WT *)timers, timercnt - 1); 1643 upheap ((WT *)timers, timercnt - 1);
1453 1644
1645 /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/
1646}
1647
1648void noinline
1649ev_timer_stop (EV_P_ ev_timer *w)
1650{
1651 clear_pending (EV_A_ (W)w);
1652 if (expect_false (!ev_is_active (w)))
1653 return;
1654
1454 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); 1655 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1455}
1456 1656
1457void 1657 {
1458ev_timer_stop (EV_P_ ev_timer *w) 1658 int active = ((W)w)->active;
1459{
1460 ev_clear_pending (EV_A_ (W)w);
1461 if (expect_false (!ev_is_active (w)))
1462 return;
1463 1659
1464 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1465
1466 if (expect_true (((W)w)->active < timercnt--)) 1660 if (expect_true (--active < --timercnt))
1467 { 1661 {
1468 timers [((W)w)->active - 1] = timers [timercnt]; 1662 timers [active] = timers [timercnt];
1469 adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); 1663 adjustheap ((WT *)timers, timercnt, active);
1470 } 1664 }
1665 }
1471 1666
1472 ((WT)w)->at -= mn_now; 1667 ((WT)w)->at -= mn_now;
1473 1668
1474 ev_stop (EV_A_ (W)w); 1669 ev_stop (EV_A_ (W)w);
1475} 1670}
1476 1671
1477void 1672void noinline
1478ev_timer_again (EV_P_ ev_timer *w) 1673ev_timer_again (EV_P_ ev_timer *w)
1479{ 1674{
1480 if (ev_is_active (w)) 1675 if (ev_is_active (w))
1481 { 1676 {
1482 if (w->repeat) 1677 if (w->repeat)
1492 w->at = w->repeat; 1687 w->at = w->repeat;
1493 ev_timer_start (EV_A_ w); 1688 ev_timer_start (EV_A_ w);
1494 } 1689 }
1495} 1690}
1496 1691
1497#if EV_PERIODICS 1692#if EV_PERIODIC_ENABLE
1498void 1693void noinline
1499ev_periodic_start (EV_P_ ev_periodic *w) 1694ev_periodic_start (EV_P_ ev_periodic *w)
1500{ 1695{
1501 if (expect_false (ev_is_active (w))) 1696 if (expect_false (ev_is_active (w)))
1502 return; 1697 return;
1503 1698
1505 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); 1700 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1506 else if (w->interval) 1701 else if (w->interval)
1507 { 1702 {
1508 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); 1703 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1509 /* this formula differs from the one in periodic_reify because we do not always round up */ 1704 /* this formula differs from the one in periodic_reify because we do not always round up */
1510 ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; 1705 ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1511 } 1706 }
1707 else
1708 ((WT)w)->at = w->offset;
1512 1709
1513 ev_start (EV_A_ (W)w, ++periodiccnt); 1710 ev_start (EV_A_ (W)w, ++periodiccnt);
1514 array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); 1711 array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1515 periodics [periodiccnt - 1] = w; 1712 periodics [periodiccnt - 1] = w;
1516 upheap ((WT *)periodics, periodiccnt - 1); 1713 upheap ((WT *)periodics, periodiccnt - 1);
1517 1714
1715 /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/
1716}
1717
1718void noinline
1719ev_periodic_stop (EV_P_ ev_periodic *w)
1720{
1721 clear_pending (EV_A_ (W)w);
1722 if (expect_false (!ev_is_active (w)))
1723 return;
1724
1518 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); 1725 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1519}
1520 1726
1521void 1727 {
1522ev_periodic_stop (EV_P_ ev_periodic *w) 1728 int active = ((W)w)->active;
1523{
1524 ev_clear_pending (EV_A_ (W)w);
1525 if (expect_false (!ev_is_active (w)))
1526 return;
1527 1729
1528 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1529
1530 if (expect_true (((W)w)->active < periodiccnt--)) 1730 if (expect_true (--active < --periodiccnt))
1531 { 1731 {
1532 periodics [((W)w)->active - 1] = periodics [periodiccnt]; 1732 periodics [active] = periodics [periodiccnt];
1533 adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); 1733 adjustheap ((WT *)periodics, periodiccnt, active);
1534 } 1734 }
1735 }
1535 1736
1536 ev_stop (EV_A_ (W)w); 1737 ev_stop (EV_A_ (W)w);
1537} 1738}
1538 1739
1539void 1740void noinline
1540ev_periodic_again (EV_P_ ev_periodic *w) 1741ev_periodic_again (EV_P_ ev_periodic *w)
1541{ 1742{
1542 /* TODO: use adjustheap and recalculation */ 1743 /* TODO: use adjustheap and recalculation */
1543 ev_periodic_stop (EV_A_ w); 1744 ev_periodic_stop (EV_A_ w);
1544 ev_periodic_start (EV_A_ w); 1745 ev_periodic_start (EV_A_ w);
1545} 1746}
1546#endif 1747#endif
1547 1748
1548void
1549ev_idle_start (EV_P_ ev_idle *w)
1550{
1551 if (expect_false (ev_is_active (w)))
1552 return;
1553
1554 ev_start (EV_A_ (W)w, ++idlecnt);
1555 array_needsize (ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1556 idles [idlecnt - 1] = w;
1557}
1558
1559void
1560ev_idle_stop (EV_P_ ev_idle *w)
1561{
1562 ev_clear_pending (EV_A_ (W)w);
1563 if (expect_false (!ev_is_active (w)))
1564 return;
1565
1566 {
1567 int active = ((W)w)->active;
1568 idles [active - 1] = idles [--idlecnt];
1569 ((W)idles [active - 1])->active = active;
1570 }
1571
1572 ev_stop (EV_A_ (W)w);
1573}
1574
1575void
1576ev_prepare_start (EV_P_ ev_prepare *w)
1577{
1578 if (expect_false (ev_is_active (w)))
1579 return;
1580
1581 ev_start (EV_A_ (W)w, ++preparecnt);
1582 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1583 prepares [preparecnt - 1] = w;
1584}
1585
1586void
1587ev_prepare_stop (EV_P_ ev_prepare *w)
1588{
1589 ev_clear_pending (EV_A_ (W)w);
1590 if (expect_false (!ev_is_active (w)))
1591 return;
1592
1593 {
1594 int active = ((W)w)->active;
1595 prepares [active - 1] = prepares [--preparecnt];
1596 ((W)prepares [active - 1])->active = active;
1597 }
1598
1599 ev_stop (EV_A_ (W)w);
1600}
1601
1602void
1603ev_check_start (EV_P_ ev_check *w)
1604{
1605 if (expect_false (ev_is_active (w)))
1606 return;
1607
1608 ev_start (EV_A_ (W)w, ++checkcnt);
1609 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
1610 checks [checkcnt - 1] = w;
1611}
1612
1613void
1614ev_check_stop (EV_P_ ev_check *w)
1615{
1616 ev_clear_pending (EV_A_ (W)w);
1617 if (expect_false (!ev_is_active (w)))
1618 return;
1619
1620 {
1621 int active = ((W)w)->active;
1622 checks [active - 1] = checks [--checkcnt];
1623 ((W)checks [active - 1])->active = active;
1624 }
1625
1626 ev_stop (EV_A_ (W)w);
1627}
1628
1629#ifndef SA_RESTART 1749#ifndef SA_RESTART
1630# define SA_RESTART 0 1750# define SA_RESTART 0
1631#endif 1751#endif
1632 1752
1633void 1753void noinline
1634ev_signal_start (EV_P_ ev_signal *w) 1754ev_signal_start (EV_P_ ev_signal *w)
1635{ 1755{
1636#if EV_MULTIPLICITY 1756#if EV_MULTIPLICITY
1637 assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 1757 assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1638#endif 1758#endif
1657 sigaction (w->signum, &sa, 0); 1777 sigaction (w->signum, &sa, 0);
1658#endif 1778#endif
1659 } 1779 }
1660} 1780}
1661 1781
1662void 1782void noinline
1663ev_signal_stop (EV_P_ ev_signal *w) 1783ev_signal_stop (EV_P_ ev_signal *w)
1664{ 1784{
1665 ev_clear_pending (EV_A_ (W)w); 1785 clear_pending (EV_A_ (W)w);
1666 if (expect_false (!ev_is_active (w))) 1786 if (expect_false (!ev_is_active (w)))
1667 return; 1787 return;
1668 1788
1669 wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); 1789 wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1670 ev_stop (EV_A_ (W)w); 1790 ev_stop (EV_A_ (W)w);
1681#endif 1801#endif
1682 if (expect_false (ev_is_active (w))) 1802 if (expect_false (ev_is_active (w)))
1683 return; 1803 return;
1684 1804
1685 ev_start (EV_A_ (W)w, 1); 1805 ev_start (EV_A_ (W)w, 1);
1686 wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1806 wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1687} 1807}
1688 1808
1689void 1809void
1690ev_child_stop (EV_P_ ev_child *w) 1810ev_child_stop (EV_P_ ev_child *w)
1691{ 1811{
1692 ev_clear_pending (EV_A_ (W)w); 1812 clear_pending (EV_A_ (W)w);
1693 if (expect_false (!ev_is_active (w))) 1813 if (expect_false (!ev_is_active (w)))
1694 return; 1814 return;
1695 1815
1696 wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1816 wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1697 ev_stop (EV_A_ (W)w); 1817 ev_stop (EV_A_ (W)w);
1698} 1818}
1699 1819
1700#if EV_MULTIPLICITY 1820#if EV_STAT_ENABLE
1821
1822# ifdef _WIN32
1823# undef lstat
1824# define lstat(a,b) _stati64 (a,b)
1825# endif
1826
1827#define DEF_STAT_INTERVAL 5.0074891
1828#define MIN_STAT_INTERVAL 0.1074891
1829
1830static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
1831
1832#if EV_USE_INOTIFY
1833# define EV_INOTIFY_BUFSIZE 8192
1834
1835static void noinline
1836infy_add (EV_P_ ev_stat *w)
1837{
1838 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);
1839
1840 if (w->wd < 0)
1841 {
1842 ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
1843
1844 /* monitor some parent directory for speedup hints */
1845 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
1846 {
1847 char path [4096];
1848 strcpy (path, w->path);
1849
1850 do
1851 {
1852 int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF
1853 | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);
1854
1855 char *pend = strrchr (path, '/');
1856
1857 if (!pend)
1858 break; /* whoops, no '/', complain to your admin */
1859
1860 *pend = 0;
1861 w->wd = inotify_add_watch (fs_fd, path, mask);
1862 }
1863 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
1864 }
1865 }
1866 else
1867 ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */
1868
1869 if (w->wd >= 0)
1870 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
1871}
1872
1873static void noinline
1874infy_del (EV_P_ ev_stat *w)
1875{
1876 int slot;
1877 int wd = w->wd;
1878
1879 if (wd < 0)
1880 return;
1881
1882 w->wd = -2;
1883 slot = wd & (EV_INOTIFY_HASHSIZE - 1);
1884 wlist_del (&fs_hash [slot].head, (WL)w);
1885
1886 /* remove this watcher, if others are watching it, they will rearm */
1887 inotify_rm_watch (fs_fd, wd);
1888}
1889
1890static void noinline
1891infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
1892{
1893 if (slot < 0)
1894 /* overflow, need to check for all hahs slots */
1895 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
1896 infy_wd (EV_A_ slot, wd, ev);
1897 else
1898 {
1899 WL w_;
1900
1901 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; )
1902 {
1903 ev_stat *w = (ev_stat *)w_;
1904 w_ = w_->next; /* lets us remove this watcher and all before it */
1905
1906 if (w->wd == wd || wd == -1)
1907 {
1908 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
1909 {
1910 w->wd = -1;
1911 infy_add (EV_A_ w); /* re-add, no matter what */
1912 }
1913
1914 stat_timer_cb (EV_A_ &w->timer, 0);
1915 }
1916 }
1917 }
1918}
1919
1920static void
1921infy_cb (EV_P_ ev_io *w, int revents)
1922{
1923 char buf [EV_INOTIFY_BUFSIZE];
1924 struct inotify_event *ev = (struct inotify_event *)buf;
1925 int ofs;
1926 int len = read (fs_fd, buf, sizeof (buf));
1927
1928 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)
1929 infy_wd (EV_A_ ev->wd, ev->wd, ev);
1930}
1931
1932void inline_size
1933infy_init (EV_P)
1934{
1935 if (fs_fd != -2)
1936 return;
1937
1938 fs_fd = inotify_init ();
1939
1940 if (fs_fd >= 0)
1941 {
1942 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
1943 ev_set_priority (&fs_w, EV_MAXPRI);
1944 ev_io_start (EV_A_ &fs_w);
1945 }
1946}
1947
1948void inline_size
1949infy_fork (EV_P)
1950{
1951 int slot;
1952
1953 if (fs_fd < 0)
1954 return;
1955
1956 close (fs_fd);
1957 fs_fd = inotify_init ();
1958
1959 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
1960 {
1961 WL w_ = fs_hash [slot].head;
1962 fs_hash [slot].head = 0;
1963
1964 while (w_)
1965 {
1966 ev_stat *w = (ev_stat *)w_;
1967 w_ = w_->next; /* lets us add this watcher */
1968
1969 w->wd = -1;
1970
1971 if (fs_fd >= 0)
1972 infy_add (EV_A_ w); /* re-add, no matter what */
1973 else
1974 ev_timer_start (EV_A_ &w->timer);
1975 }
1976
1977 }
1978}
1979
1980#endif
1981
1701void 1982void
1983ev_stat_stat (EV_P_ ev_stat *w)
1984{
1985 if (lstat (w->path, &w->attr) < 0)
1986 w->attr.st_nlink = 0;
1987 else if (!w->attr.st_nlink)
1988 w->attr.st_nlink = 1;
1989}
1990
1991static void noinline
1992stat_timer_cb (EV_P_ ev_timer *w_, int revents)
1993{
1994 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
1995
1996 /* we copy this here each the time so that */
1997 /* prev has the old value when the callback gets invoked */
1998 w->prev = w->attr;
1999 ev_stat_stat (EV_A_ w);
2000
2001 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
2002 if (
2003 w->prev.st_dev != w->attr.st_dev
2004 || w->prev.st_ino != w->attr.st_ino
2005 || w->prev.st_mode != w->attr.st_mode
2006 || w->prev.st_nlink != w->attr.st_nlink
2007 || w->prev.st_uid != w->attr.st_uid
2008 || w->prev.st_gid != w->attr.st_gid
2009 || w->prev.st_rdev != w->attr.st_rdev
2010 || w->prev.st_size != w->attr.st_size
2011 || w->prev.st_atime != w->attr.st_atime
2012 || w->prev.st_mtime != w->attr.st_mtime
2013 || w->prev.st_ctime != w->attr.st_ctime
2014 ) {
2015 #if EV_USE_INOTIFY
2016 infy_del (EV_A_ w);
2017 infy_add (EV_A_ w);
2018 ev_stat_stat (EV_A_ w); /* avoid race... */
2019 #endif
2020
2021 ev_feed_event (EV_A_ w, EV_STAT);
2022 }
2023}
2024
2025void
2026ev_stat_start (EV_P_ ev_stat *w)
2027{
2028 if (expect_false (ev_is_active (w)))
2029 return;
2030
2031 /* since we use memcmp, we need to clear any padding data etc. */
2032 memset (&w->prev, 0, sizeof (ev_statdata));
2033 memset (&w->attr, 0, sizeof (ev_statdata));
2034
2035 ev_stat_stat (EV_A_ w);
2036
2037 if (w->interval < MIN_STAT_INTERVAL)
2038 w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
2039
2040 ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);
2041 ev_set_priority (&w->timer, ev_priority (w));
2042
2043#if EV_USE_INOTIFY
2044 infy_init (EV_A);
2045
2046 if (fs_fd >= 0)
2047 infy_add (EV_A_ w);
2048 else
2049#endif
2050 ev_timer_start (EV_A_ &w->timer);
2051
2052 ev_start (EV_A_ (W)w, 1);
2053}
2054
2055void
2056ev_stat_stop (EV_P_ ev_stat *w)
2057{
2058 clear_pending (EV_A_ (W)w);
2059 if (expect_false (!ev_is_active (w)))
2060 return;
2061
2062#if EV_USE_INOTIFY
2063 infy_del (EV_A_ w);
2064#endif
2065 ev_timer_stop (EV_A_ &w->timer);
2066
2067 ev_stop (EV_A_ (W)w);
2068}
2069#endif
2070
2071#if EV_IDLE_ENABLE
2072void
2073ev_idle_start (EV_P_ ev_idle *w)
2074{
2075 if (expect_false (ev_is_active (w)))
2076 return;
2077
2078 pri_adjust (EV_A_ (W)w);
2079
2080 {
2081 int active = ++idlecnt [ABSPRI (w)];
2082
2083 ++idleall;
2084 ev_start (EV_A_ (W)w, active);
2085
2086 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);
2087 idles [ABSPRI (w)][active - 1] = w;
2088 }
2089}
2090
2091void
2092ev_idle_stop (EV_P_ ev_idle *w)
2093{
2094 clear_pending (EV_A_ (W)w);
2095 if (expect_false (!ev_is_active (w)))
2096 return;
2097
2098 {
2099 int active = ((W)w)->active;
2100
2101 idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
2102 ((W)idles [ABSPRI (w)][active - 1])->active = active;
2103
2104 ev_stop (EV_A_ (W)w);
2105 --idleall;
2106 }
2107}
2108#endif
2109
2110void
2111ev_prepare_start (EV_P_ ev_prepare *w)
2112{
2113 if (expect_false (ev_is_active (w)))
2114 return;
2115
2116 ev_start (EV_A_ (W)w, ++preparecnt);
2117 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
2118 prepares [preparecnt - 1] = w;
2119}
2120
2121void
2122ev_prepare_stop (EV_P_ ev_prepare *w)
2123{
2124 clear_pending (EV_A_ (W)w);
2125 if (expect_false (!ev_is_active (w)))
2126 return;
2127
2128 {
2129 int active = ((W)w)->active;
2130 prepares [active - 1] = prepares [--preparecnt];
2131 ((W)prepares [active - 1])->active = active;
2132 }
2133
2134 ev_stop (EV_A_ (W)w);
2135}
2136
2137void
2138ev_check_start (EV_P_ ev_check *w)
2139{
2140 if (expect_false (ev_is_active (w)))
2141 return;
2142
2143 ev_start (EV_A_ (W)w, ++checkcnt);
2144 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
2145 checks [checkcnt - 1] = w;
2146}
2147
2148void
2149ev_check_stop (EV_P_ ev_check *w)
2150{
2151 clear_pending (EV_A_ (W)w);
2152 if (expect_false (!ev_is_active (w)))
2153 return;
2154
2155 {
2156 int active = ((W)w)->active;
2157 checks [active - 1] = checks [--checkcnt];
2158 ((W)checks [active - 1])->active = active;
2159 }
2160
2161 ev_stop (EV_A_ (W)w);
2162}
2163
2164#if EV_EMBED_ENABLE
2165void noinline
1702ev_embed_sweep (EV_P_ ev_embed *w) 2166ev_embed_sweep (EV_P_ ev_embed *w)
1703{ 2167{
1704 ev_loop (w->loop, EVLOOP_NONBLOCK); 2168 ev_loop (w->loop, EVLOOP_NONBLOCK);
1705} 2169}
1706 2170
1727 ev_io_init (&w->io, embed_cb, backend_fd, EV_READ); 2191 ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);
1728 } 2192 }
1729 2193
1730 ev_set_priority (&w->io, ev_priority (w)); 2194 ev_set_priority (&w->io, ev_priority (w));
1731 ev_io_start (EV_A_ &w->io); 2195 ev_io_start (EV_A_ &w->io);
2196
1732 ev_start (EV_A_ (W)w, 1); 2197 ev_start (EV_A_ (W)w, 1);
1733} 2198}
1734 2199
1735void 2200void
1736ev_embed_stop (EV_P_ ev_embed *w) 2201ev_embed_stop (EV_P_ ev_embed *w)
1737{ 2202{
1738 ev_clear_pending (EV_A_ (W)w); 2203 clear_pending (EV_A_ (W)w);
1739 if (expect_false (!ev_is_active (w))) 2204 if (expect_false (!ev_is_active (w)))
1740 return; 2205 return;
1741 2206
1742 ev_io_stop (EV_A_ &w->io); 2207 ev_io_stop (EV_A_ &w->io);
2208
2209 ev_stop (EV_A_ (W)w);
2210}
2211#endif
2212
2213#if EV_FORK_ENABLE
2214void
2215ev_fork_start (EV_P_ ev_fork *w)
2216{
2217 if (expect_false (ev_is_active (w)))
2218 return;
2219
2220 ev_start (EV_A_ (W)w, ++forkcnt);
2221 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);
2222 forks [forkcnt - 1] = w;
2223}
2224
2225void
2226ev_fork_stop (EV_P_ ev_fork *w)
2227{
2228 clear_pending (EV_A_ (W)w);
2229 if (expect_false (!ev_is_active (w)))
2230 return;
2231
2232 {
2233 int active = ((W)w)->active;
2234 forks [active - 1] = forks [--forkcnt];
2235 ((W)forks [active - 1])->active = active;
2236 }
2237
1743 ev_stop (EV_A_ (W)w); 2238 ev_stop (EV_A_ (W)w);
1744} 2239}
1745#endif 2240#endif
1746 2241
1747/*****************************************************************************/ 2242/*****************************************************************************/

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