ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/libev/ev.c
(Generate patch)

Comparing libev/ev.c (file contents):
Revision 1.228 by root, Fri May 2 08:07:37 2008 UTC vs.
Revision 1.261 by root, Mon Sep 29 03:31:14 2008 UTC

… …
126# define EV_USE_EVENTFD 1 126# define EV_USE_EVENTFD 1
127# else 127# else
128# define EV_USE_EVENTFD 0 128# define EV_USE_EVENTFD 0
129# endif 129# endif
130# endif 130# endif
131 131
132#endif 132#endif
133 133
134#include <math.h> 134#include <math.h>
135#include <stdlib.h> 135#include <stdlib.h>
136#include <fcntl.h> 136#include <fcntl.h>
… …
154#ifndef _WIN32 154#ifndef _WIN32
155# include <sys/time.h> 155# include <sys/time.h>
156# include <sys/wait.h> 156# include <sys/wait.h>
157# include <unistd.h> 157# include <unistd.h>
158#else 158#else
159# include <io.h>
159# define WIN32_LEAN_AND_MEAN 160# define WIN32_LEAN_AND_MEAN
160# include <windows.h> 161# include <windows.h>
161# ifndef EV_SELECT_IS_WINSOCKET 162# ifndef EV_SELECT_IS_WINSOCKET
162# define EV_SELECT_IS_WINSOCKET 1 163# define EV_SELECT_IS_WINSOCKET 1
163# endif 164# endif
164#endif 165#endif
165 166
166/* this block tries to deduce configuration from header-defined symbols and defaults */ 167/* this block tries to deduce configuration from header-defined symbols and defaults */
167 168
168#ifndef EV_USE_MONOTONIC 169#ifndef EV_USE_MONOTONIC
170# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0
171# define EV_USE_MONOTONIC 1
172# else
169# define EV_USE_MONOTONIC 0 173# define EV_USE_MONOTONIC 0
174# endif
170#endif 175#endif
171 176
172#ifndef EV_USE_REALTIME 177#ifndef EV_USE_REALTIME
173# define EV_USE_REALTIME 0 178# define EV_USE_REALTIME 0
174#endif 179#endif
175 180
176#ifndef EV_USE_NANOSLEEP 181#ifndef EV_USE_NANOSLEEP
182# if _POSIX_C_SOURCE >= 199309L
183# define EV_USE_NANOSLEEP 1
184# else
177# define EV_USE_NANOSLEEP 0 185# define EV_USE_NANOSLEEP 0
186# endif
178#endif 187#endif
179 188
180#ifndef EV_USE_SELECT 189#ifndef EV_USE_SELECT
181# define EV_USE_SELECT 1 190# define EV_USE_SELECT 1
182#endif 191#endif
… …
233# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 242# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
234# define EV_USE_EVENTFD 1 243# define EV_USE_EVENTFD 1
235# else 244# else
236# define EV_USE_EVENTFD 0 245# define EV_USE_EVENTFD 0
237# endif 246# endif
247#endif
248
249#if 0 /* debugging */
250# define EV_VERIFY 3
251# define EV_USE_4HEAP 1
252# define EV_HEAP_CACHE_AT 1
253#endif
254
255#ifndef EV_VERIFY
256# define EV_VERIFY !EV_MINIMAL
257#endif
258
259#ifndef EV_USE_4HEAP
260# define EV_USE_4HEAP !EV_MINIMAL
261#endif
262
263#ifndef EV_HEAP_CACHE_AT
264# define EV_HEAP_CACHE_AT !EV_MINIMAL
238#endif 265#endif
239 266
240/* this block fixes any misconfiguration where we know we run into trouble otherwise */ 267/* this block fixes any misconfiguration where we know we run into trouble otherwise */
241 268
242#ifndef CLOCK_MONOTONIC 269#ifndef CLOCK_MONOTONIC
… …
279} 306}
280# endif 307# endif
281#endif 308#endif
282 309
283/**/ 310/**/
311
312#if EV_VERIFY >= 3
313# define EV_FREQUENT_CHECK ev_loop_verify (EV_A)
314#else
315# define EV_FREQUENT_CHECK do { } while (0)
316#endif
284 317
285/* 318/*
286 * This is used to avoid floating point rounding problems. 319 * This is used to avoid floating point rounding problems.
287 * It is added to ev_rt_now when scheduling periodics 320 * It is added to ev_rt_now when scheduling periodics
288 * to ensure progress, time-wise, even when rounding 321 * to ensure progress, time-wise, even when rounding
… …
325 358
326typedef ev_watcher *W; 359typedef ev_watcher *W;
327typedef ev_watcher_list *WL; 360typedef ev_watcher_list *WL;
328typedef ev_watcher_time *WT; 361typedef ev_watcher_time *WT;
329 362
363#define ev_active(w) ((W)(w))->active
330#define ev_at(w) ((WT)(w))->at 364#define ev_at(w) ((WT)(w))->at
331 365
332#if EV_USE_MONOTONIC 366#if EV_USE_MONOTONIC
333/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 367/* sig_atomic_t is used to avoid per-thread variables or locking but still */
334/* giving it a reasonably high chance of working on typical architetcures */ 368/* giving it a reasonably high chance of working on typical architetcures */
… …
421 W w; 455 W w;
422 int events; 456 int events;
423} ANPENDING; 457} ANPENDING;
424 458
425#if EV_USE_INOTIFY 459#if EV_USE_INOTIFY
460/* hash table entry per inotify-id */
426typedef struct 461typedef struct
427{ 462{
428 WL head; 463 WL head;
429} ANFS; 464} ANFS;
465#endif
466
467/* Heap Entry */
468#if EV_HEAP_CACHE_AT
469 typedef struct {
470 ev_tstamp at;
471 WT w;
472 } ANHE;
473
474 #define ANHE_w(he) (he).w /* access watcher, read-write */
475 #define ANHE_at(he) (he).at /* access cached at, read-only */
476 #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */
477#else
478 typedef WT ANHE;
479
480 #define ANHE_w(he) (he)
481 #define ANHE_at(he) (he)->at
482 #define ANHE_at_cache(he)
430#endif 483#endif
431 484
432#if EV_MULTIPLICITY 485#if EV_MULTIPLICITY
433 486
434 struct ev_loop 487 struct ev_loop
… …
512 struct timeval tv; 565 struct timeval tv;
513 566
514 tv.tv_sec = (time_t)delay; 567 tv.tv_sec = (time_t)delay;
515 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); 568 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
516 569
570 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
571 /* somehting nto guaranteed by newer posix versions, but guaranteed */
572 /* by older ones */
517 select (0, 0, 0, 0, &tv); 573 select (0, 0, 0, 0, &tv);
518#endif 574#endif
519 } 575 }
520} 576}
521 577
522/*****************************************************************************/ 578/*****************************************************************************/
579
580#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
523 581
524int inline_size 582int inline_size
525array_nextsize (int elem, int cur, int cnt) 583array_nextsize (int elem, int cur, int cnt)
526{ 584{
527 int ncur = cur + 1; 585 int ncur = cur + 1;
528 586
529 do 587 do
530 ncur <<= 1; 588 ncur <<= 1;
531 while (cnt > ncur); 589 while (cnt > ncur);
532 590
533 /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */ 591 /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */
534 if (elem * ncur > 4096) 592 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
535 { 593 {
536 ncur *= elem; 594 ncur *= elem;
537 ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095; 595 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
538 ncur = ncur - sizeof (void *) * 4; 596 ncur = ncur - sizeof (void *) * 4;
539 ncur /= elem; 597 ncur /= elem;
540 } 598 }
541 599
542 return ncur; 600 return ncur;
… …
653 events |= (unsigned char)w->events; 711 events |= (unsigned char)w->events;
654 712
655#if EV_SELECT_IS_WINSOCKET 713#if EV_SELECT_IS_WINSOCKET
656 if (events) 714 if (events)
657 { 715 {
658 unsigned long argp; 716 unsigned long arg;
659 #ifdef EV_FD_TO_WIN32_HANDLE 717 #ifdef EV_FD_TO_WIN32_HANDLE
660 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 718 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
661 #else 719 #else
662 anfd->handle = _get_osfhandle (fd); 720 anfd->handle = _get_osfhandle (fd);
663 #endif 721 #endif
664 assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); 722 assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
665 } 723 }
666#endif 724#endif
667 725
668 { 726 {
669 unsigned char o_events = anfd->events; 727 unsigned char o_events = anfd->events;
… …
722{ 780{
723 int fd; 781 int fd;
724 782
725 for (fd = 0; fd < anfdmax; ++fd) 783 for (fd = 0; fd < anfdmax; ++fd)
726 if (anfds [fd].events) 784 if (anfds [fd].events)
727 if (!fd_valid (fd) == -1 && errno == EBADF) 785 if (!fd_valid (fd) && errno == EBADF)
728 fd_kill (EV_A_ fd); 786 fd_kill (EV_A_ fd);
729} 787}
730 788
731/* called on ENOMEM in select/poll to kill some fds and retry */ 789/* called on ENOMEM in select/poll to kill some fds and retry */
732static void noinline 790static void noinline
… …
756 } 814 }
757} 815}
758 816
759/*****************************************************************************/ 817/*****************************************************************************/
760 818
819/*
820 * the heap functions want a real array index. array index 0 uis guaranteed to not
821 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
822 * the branching factor of the d-tree.
823 */
824
825/*
826 * at the moment we allow libev the luxury of two heaps,
827 * a small-code-size 2-heap one and a ~1.5kb larger 4-heap
828 * which is more cache-efficient.
829 * the difference is about 5% with 50000+ watchers.
830 */
831#if EV_USE_4HEAP
832
833#define DHEAP 4
834#define HEAP0 (DHEAP - 1) /* index of first element in heap */
835#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0)
836#define UPHEAP_DONE(p,k) ((p) == (k))
837
838/* away from the root */
839void inline_speed
840downheap (ANHE *heap, int N, int k)
841{
842 ANHE he = heap [k];
843 ANHE *E = heap + N + HEAP0;
844
845 for (;;)
846 {
847 ev_tstamp minat;
848 ANHE *minpos;
849 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;
850
851 /* find minimum child */
852 if (expect_true (pos + DHEAP - 1 < E))
853 {
854 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
855 if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos));
856 if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos));
857 if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos));
858 }
859 else if (pos < E)
860 {
861 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
862 if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos));
863 if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos));
864 if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos));
865 }
866 else
867 break;
868
869 if (ANHE_at (he) <= minat)
870 break;
871
872 heap [k] = *minpos;
873 ev_active (ANHE_w (*minpos)) = k;
874
875 k = minpos - heap;
876 }
877
878 heap [k] = he;
879 ev_active (ANHE_w (he)) = k;
880}
881
882#else /* 4HEAP */
883
884#define HEAP0 1
885#define HPARENT(k) ((k) >> 1)
886#define UPHEAP_DONE(p,k) (!(p))
887
888/* away from the root */
889void inline_speed
890downheap (ANHE *heap, int N, int k)
891{
892 ANHE he = heap [k];
893
894 for (;;)
895 {
896 int c = k << 1;
897
898 if (c > N + HEAP0 - 1)
899 break;
900
901 c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])
902 ? 1 : 0;
903
904 if (ANHE_at (he) <= ANHE_at (heap [c]))
905 break;
906
907 heap [k] = heap [c];
908 ev_active (ANHE_w (heap [k])) = k;
909
910 k = c;
911 }
912
913 heap [k] = he;
914 ev_active (ANHE_w (he)) = k;
915}
916#endif
917
761/* towards the root */ 918/* towards the root */
762void inline_speed 919void inline_speed
763upheap (WT *heap, int k) 920upheap (ANHE *heap, int k)
764{ 921{
765 WT w = heap [k]; 922 ANHE he = heap [k];
766 923
767 for (;;) 924 for (;;)
768 { 925 {
769 int p = k >> 1; 926 int p = HPARENT (k);
770 927
771 /* maybe we could use a dummy element at heap [0]? */ 928 if (UPHEAP_DONE (p, k) || ANHE_at (heap [p]) <= ANHE_at (he))
772 if (!p || heap [p]->at <= w->at)
773 break; 929 break;
774 930
775 heap [k] = heap [p]; 931 heap [k] = heap [p];
776 ((W)heap [k])->active = k; 932 ev_active (ANHE_w (heap [k])) = k;
777 k = p; 933 k = p;
778 } 934 }
779 935
780 heap [k] = w; 936 heap [k] = he;
781 ((W)heap [k])->active = k; 937 ev_active (ANHE_w (he)) = k;
782}
783
784/* away from the root */
785void inline_speed
786downheap (WT *heap, int N, int k)
787{
788 WT w = heap [k];
789
790 for (;;)
791 {
792 int c = k << 1;
793
794 if (c > N)
795 break;
796
797 c += c < N && heap [c]->at > heap [c + 1]->at
798 ? 1 : 0;
799
800 if (w->at <= heap [c]->at)
801 break;
802
803 heap [k] = heap [c];
804 ((W)heap [k])->active = k;
805
806 k = c;
807 }
808
809 heap [k] = w;
810 ((W)heap [k])->active = k;
811} 938}
812 939
813void inline_size 940void inline_size
814adjustheap (WT *heap, int N, int k) 941adjustheap (ANHE *heap, int N, int k)
815{ 942{
943 if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k]))
816 upheap (heap, k); 944 upheap (heap, k);
945 else
817 downheap (heap, N, k); 946 downheap (heap, N, k);
947}
948
949/* rebuild the heap: this function is used only once and executed rarely */
950void inline_size
951reheap (ANHE *heap, int N)
952{
953 int i;
954
955 /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */
956 /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */
957 for (i = 0; i < N; ++i)
958 upheap (heap, i + HEAP0);
818} 959}
819 960
820/*****************************************************************************/ 961/*****************************************************************************/
821 962
822typedef struct 963typedef struct
… …
846 987
847void inline_speed 988void inline_speed
848fd_intern (int fd) 989fd_intern (int fd)
849{ 990{
850#ifdef _WIN32 991#ifdef _WIN32
851 int arg = 1; 992 unsigned long arg = 1;
852 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); 993 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
853#else 994#else
854 fcntl (fd, F_SETFD, FD_CLOEXEC); 995 fcntl (fd, F_SETFD, FD_CLOEXEC);
855 fcntl (fd, F_SETFL, O_NONBLOCK); 996 fcntl (fd, F_SETFL, O_NONBLOCK);
856#endif 997#endif
… …
911pipecb (EV_P_ ev_io *iow, int revents) 1052pipecb (EV_P_ ev_io *iow, int revents)
912{ 1053{
913#if EV_USE_EVENTFD 1054#if EV_USE_EVENTFD
914 if (evfd >= 0) 1055 if (evfd >= 0)
915 { 1056 {
916 uint64_t counter = 1; 1057 uint64_t counter;
917 read (evfd, &counter, sizeof (uint64_t)); 1058 read (evfd, &counter, sizeof (uint64_t));
918 } 1059 }
919 else 1060 else
920#endif 1061#endif
921 { 1062 {
… …
1340 1481
1341 postfork = 0; 1482 postfork = 0;
1342} 1483}
1343 1484
1344#if EV_MULTIPLICITY 1485#if EV_MULTIPLICITY
1486
1345struct ev_loop * 1487struct ev_loop *
1346ev_loop_new (unsigned int flags) 1488ev_loop_new (unsigned int flags)
1347{ 1489{
1348 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 1490 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1349 1491
… …
1368ev_loop_fork (EV_P) 1510ev_loop_fork (EV_P)
1369{ 1511{
1370 postfork = 1; /* must be in line with ev_default_fork */ 1512 postfork = 1; /* must be in line with ev_default_fork */
1371} 1513}
1372 1514
1515#if EV_VERIFY
1516static void noinline
1517verify_watcher (EV_P_ W w)
1518{
1519 assert (("watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1520
1521 if (w->pending)
1522 assert (("pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1523}
1524
1525static void noinline
1526verify_heap (EV_P_ ANHE *heap, int N)
1527{
1528 int i;
1529
1530 for (i = HEAP0; i < N + HEAP0; ++i)
1531 {
1532 assert (("active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i));
1533 assert (("heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i])));
1534 assert (("heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i]))));
1535
1536 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1537 }
1538}
1539
1540static void noinline
1541array_verify (EV_P_ W *ws, int cnt)
1542{
1543 while (cnt--)
1544 {
1545 assert (("active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1546 verify_watcher (EV_A_ ws [cnt]);
1547 }
1548}
1549#endif
1550
1551void
1552ev_loop_verify (EV_P)
1553{
1554#if EV_VERIFY
1555 int i;
1556 WL w;
1557
1558 assert (activecnt >= -1);
1559
1560 assert (fdchangemax >= fdchangecnt);
1561 for (i = 0; i < fdchangecnt; ++i)
1562 assert (("negative fd in fdchanges", fdchanges [i] >= 0));
1563
1564 assert (anfdmax >= 0);
1565 for (i = 0; i < anfdmax; ++i)
1566 for (w = anfds [i].head; w; w = w->next)
1567 {
1568 verify_watcher (EV_A_ (W)w);
1569 assert (("inactive fd watcher on anfd list", ev_active (w) == 1));
1570 assert (("fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
1571 }
1572
1573 assert (timermax >= timercnt);
1574 verify_heap (EV_A_ timers, timercnt);
1575
1576#if EV_PERIODIC_ENABLE
1577 assert (periodicmax >= periodiccnt);
1578 verify_heap (EV_A_ periodics, periodiccnt);
1579#endif
1580
1581 for (i = NUMPRI; i--; )
1582 {
1583 assert (pendingmax [i] >= pendingcnt [i]);
1584#if EV_IDLE_ENABLE
1585 assert (idleall >= 0);
1586 assert (idlemax [i] >= idlecnt [i]);
1587 array_verify (EV_A_ (W *)idles [i], idlecnt [i]);
1588#endif
1589 }
1590
1591#if EV_FORK_ENABLE
1592 assert (forkmax >= forkcnt);
1593 array_verify (EV_A_ (W *)forks, forkcnt);
1594#endif
1595
1596#if EV_ASYNC_ENABLE
1597 assert (asyncmax >= asynccnt);
1598 array_verify (EV_A_ (W *)asyncs, asynccnt);
1599#endif
1600
1601 assert (preparemax >= preparecnt);
1602 array_verify (EV_A_ (W *)prepares, preparecnt);
1603
1604 assert (checkmax >= checkcnt);
1605 array_verify (EV_A_ (W *)checks, checkcnt);
1606
1607# if 0
1608 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
1609 for (signum = signalmax; signum--; ) if (signals [signum].gotsig)
1373#endif 1610# endif
1611#endif
1612}
1613
1614#endif /* multiplicity */
1374 1615
1375#if EV_MULTIPLICITY 1616#if EV_MULTIPLICITY
1376struct ev_loop * 1617struct ev_loop *
1377ev_default_loop_init (unsigned int flags) 1618ev_default_loop_init (unsigned int flags)
1378#else 1619#else
… …
1454 { 1695 {
1455 /*assert (("non-pending watcher on pending list", p->w->pending));*/ 1696 /*assert (("non-pending watcher on pending list", p->w->pending));*/
1456 1697
1457 p->w->pending = 0; 1698 p->w->pending = 0;
1458 EV_CB_INVOKE (p->w, p->events); 1699 EV_CB_INVOKE (p->w, p->events);
1700 EV_FREQUENT_CHECK;
1459 } 1701 }
1460 } 1702 }
1461} 1703}
1462
1463void inline_size
1464timers_reify (EV_P)
1465{
1466 while (timercnt && ev_at (timers [1]) <= mn_now)
1467 {
1468 ev_timer *w = (ev_timer *)timers [1];
1469
1470 /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
1471
1472 /* first reschedule or stop timer */
1473 if (w->repeat)
1474 {
1475 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1476
1477 ev_at (w) += w->repeat;
1478 if (ev_at (w) < mn_now)
1479 ev_at (w) = mn_now;
1480
1481 downheap (timers, timercnt, 1);
1482 }
1483 else
1484 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1485
1486 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
1487 }
1488}
1489
1490#if EV_PERIODIC_ENABLE
1491void inline_size
1492periodics_reify (EV_P)
1493{
1494 while (periodiccnt && ev_at (periodics [1]) <= ev_rt_now)
1495 {
1496 ev_periodic *w = (ev_periodic *)periodics [1];
1497
1498 /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
1499
1500 /* first reschedule or stop timer */
1501 if (w->reschedule_cb)
1502 {
1503 ev_at (w) = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON);
1504 assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) > ev_rt_now));
1505 downheap (periodics, periodiccnt, 1);
1506 }
1507 else if (w->interval)
1508 {
1509 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1510 if (ev_at (w) - ev_rt_now <= TIME_EPSILON) ev_at (w) += w->interval;
1511 assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ev_at (w) > ev_rt_now));
1512 downheap (periodics, periodiccnt, 1);
1513 }
1514 else
1515 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1516
1517 ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
1518 }
1519}
1520
1521static void noinline
1522periodics_reschedule (EV_P)
1523{
1524 int i;
1525
1526 /* adjust periodics after time jump */
1527 for (i = 0; i < periodiccnt; ++i)
1528 {
1529 ev_periodic *w = (ev_periodic *)periodics [i];
1530
1531 if (w->reschedule_cb)
1532 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1533 else if (w->interval)
1534 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1535 }
1536
1537 /* now rebuild the heap */
1538 for (i = periodiccnt >> 1; i--; )
1539 downheap (periodics, periodiccnt, i);
1540}
1541#endif
1542 1704
1543#if EV_IDLE_ENABLE 1705#if EV_IDLE_ENABLE
1544void inline_size 1706void inline_size
1545idle_reify (EV_P) 1707idle_reify (EV_P)
1546{ 1708{
… …
1558 queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE); 1720 queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE);
1559 break; 1721 break;
1560 } 1722 }
1561 } 1723 }
1562 } 1724 }
1725}
1726#endif
1727
1728void inline_size
1729timers_reify (EV_P)
1730{
1731 EV_FREQUENT_CHECK;
1732
1733 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now)
1734 {
1735 ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]);
1736
1737 /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
1738
1739 /* first reschedule or stop timer */
1740 if (w->repeat)
1741 {
1742 ev_at (w) += w->repeat;
1743 if (ev_at (w) < mn_now)
1744 ev_at (w) = mn_now;
1745
1746 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1747
1748 ANHE_at_cache (timers [HEAP0]);
1749 downheap (timers, timercnt, HEAP0);
1750 }
1751 else
1752 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1753
1754 EV_FREQUENT_CHECK;
1755 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
1756 }
1757}
1758
1759#if EV_PERIODIC_ENABLE
1760void inline_size
1761periodics_reify (EV_P)
1762{
1763 EV_FREQUENT_CHECK;
1764
1765 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
1766 {
1767 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
1768
1769 /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
1770
1771 /* first reschedule or stop timer */
1772 if (w->reschedule_cb)
1773 {
1774 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1775
1776 assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now));
1777
1778 ANHE_at_cache (periodics [HEAP0]);
1779 downheap (periodics, periodiccnt, HEAP0);
1780 }
1781 else if (w->interval)
1782 {
1783 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1784 /* if next trigger time is not sufficiently in the future, put it there */
1785 /* this might happen because of floating point inexactness */
1786 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
1787 {
1788 ev_at (w) += w->interval;
1789
1790 /* if interval is unreasonably low we might still have a time in the past */
1791 /* so correct this. this will make the periodic very inexact, but the user */
1792 /* has effectively asked to get triggered more often than possible */
1793 if (ev_at (w) < ev_rt_now)
1794 ev_at (w) = ev_rt_now;
1795 }
1796
1797 ANHE_at_cache (periodics [HEAP0]);
1798 downheap (periodics, periodiccnt, HEAP0);
1799 }
1800 else
1801 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1802
1803 EV_FREQUENT_CHECK;
1804 ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
1805 }
1806}
1807
1808static void noinline
1809periodics_reschedule (EV_P)
1810{
1811 int i;
1812
1813 /* adjust periodics after time jump */
1814 for (i = HEAP0; i < periodiccnt + HEAP0; ++i)
1815 {
1816 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
1817
1818 if (w->reschedule_cb)
1819 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1820 else if (w->interval)
1821 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1822
1823 ANHE_at_cache (periodics [i]);
1824 }
1825
1826 reheap (periodics, periodiccnt);
1563} 1827}
1564#endif 1828#endif
1565 1829
1566void inline_speed 1830void inline_speed
1567time_update (EV_P_ ev_tstamp max_block) 1831time_update (EV_P_ ev_tstamp max_block)
… …
1596 */ 1860 */
1597 for (i = 4; --i; ) 1861 for (i = 4; --i; )
1598 { 1862 {
1599 rtmn_diff = ev_rt_now - mn_now; 1863 rtmn_diff = ev_rt_now - mn_now;
1600 1864
1601 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) 1865 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP))
1602 return; /* all is well */ 1866 return; /* all is well */
1603 1867
1604 ev_rt_now = ev_time (); 1868 ev_rt_now = ev_time ();
1605 mn_now = get_clock (); 1869 mn_now = get_clock ();
1606 now_floor = mn_now; 1870 now_floor = mn_now;
… …
1621 { 1885 {
1622#if EV_PERIODIC_ENABLE 1886#if EV_PERIODIC_ENABLE
1623 periodics_reschedule (EV_A); 1887 periodics_reschedule (EV_A);
1624#endif 1888#endif
1625 /* adjust timers. this is easy, as the offset is the same for all of them */ 1889 /* adjust timers. this is easy, as the offset is the same for all of them */
1626 for (i = 1; i <= timercnt; ++i) 1890 for (i = 0; i < timercnt; ++i)
1627 ev_at (timers [i]) += ev_rt_now - mn_now; 1891 {
1892 ANHE *he = timers + i + HEAP0;
1893 ANHE_w (*he)->at += ev_rt_now - mn_now;
1894 ANHE_at_cache (*he);
1895 }
1628 } 1896 }
1629 1897
1630 mn_now = ev_rt_now; 1898 mn_now = ev_rt_now;
1631 } 1899 }
1632} 1900}
… …
1641ev_unref (EV_P) 1909ev_unref (EV_P)
1642{ 1910{
1643 --activecnt; 1911 --activecnt;
1644} 1912}
1645 1913
1914void
1915ev_now_update (EV_P)
1916{
1917 time_update (EV_A_ 1e100);
1918}
1919
1646static int loop_done; 1920static int loop_done;
1647 1921
1648void 1922void
1649ev_loop (EV_P_ int flags) 1923ev_loop (EV_P_ int flags)
1650{ 1924{
… …
1652 1926
1653 call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ 1927 call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */
1654 1928
1655 do 1929 do
1656 { 1930 {
1931#if EV_VERIFY >= 2
1932 ev_loop_verify (EV_A);
1933#endif
1934
1657#ifndef _WIN32 1935#ifndef _WIN32
1658 if (expect_false (curpid)) /* penalise the forking check even more */ 1936 if (expect_false (curpid)) /* penalise the forking check even more */
1659 if (expect_false (getpid () != curpid)) 1937 if (expect_false (getpid () != curpid))
1660 { 1938 {
1661 curpid = getpid (); 1939 curpid = getpid ();
… …
1702 1980
1703 waittime = MAX_BLOCKTIME; 1981 waittime = MAX_BLOCKTIME;
1704 1982
1705 if (timercnt) 1983 if (timercnt)
1706 { 1984 {
1707 ev_tstamp to = ev_at (timers [1]) - mn_now + backend_fudge; 1985 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge;
1708 if (waittime > to) waittime = to; 1986 if (waittime > to) waittime = to;
1709 } 1987 }
1710 1988
1711#if EV_PERIODIC_ENABLE 1989#if EV_PERIODIC_ENABLE
1712 if (periodiccnt) 1990 if (periodiccnt)
1713 { 1991 {
1714 ev_tstamp to = ev_at (periodics [1]) - ev_rt_now + backend_fudge; 1992 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge;
1715 if (waittime > to) waittime = to; 1993 if (waittime > to) waittime = to;
1716 } 1994 }
1717#endif 1995#endif
1718 1996
1719 if (expect_false (waittime < timeout_blocktime)) 1997 if (expect_false (waittime < timeout_blocktime))
… …
1856 if (expect_false (ev_is_active (w))) 2134 if (expect_false (ev_is_active (w)))
1857 return; 2135 return;
1858 2136
1859 assert (("ev_io_start called with negative fd", fd >= 0)); 2137 assert (("ev_io_start called with negative fd", fd >= 0));
1860 2138
2139 EV_FREQUENT_CHECK;
2140
1861 ev_start (EV_A_ (W)w, 1); 2141 ev_start (EV_A_ (W)w, 1);
1862 array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); 2142 array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1863 wlist_add (&anfds[fd].head, (WL)w); 2143 wlist_add (&anfds[fd].head, (WL)w);
1864 2144
1865 fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); 2145 fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1);
1866 w->events &= ~EV_IOFDSET; 2146 w->events &= ~EV_IOFDSET;
2147
2148 EV_FREQUENT_CHECK;
1867} 2149}
1868 2150
1869void noinline 2151void noinline
1870ev_io_stop (EV_P_ ev_io *w) 2152ev_io_stop (EV_P_ ev_io *w)
1871{ 2153{
1872 clear_pending (EV_A_ (W)w); 2154 clear_pending (EV_A_ (W)w);
1873 if (expect_false (!ev_is_active (w))) 2155 if (expect_false (!ev_is_active (w)))
1874 return; 2156 return;
1875 2157
1876 assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); 2158 assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
2159
2160 EV_FREQUENT_CHECK;
1877 2161
1878 wlist_del (&anfds[w->fd].head, (WL)w); 2162 wlist_del (&anfds[w->fd].head, (WL)w);
1879 ev_stop (EV_A_ (W)w); 2163 ev_stop (EV_A_ (W)w);
1880 2164
1881 fd_change (EV_A_ w->fd, 1); 2165 fd_change (EV_A_ w->fd, 1);
2166
2167 EV_FREQUENT_CHECK;
1882} 2168}
1883 2169
1884void noinline 2170void noinline
1885ev_timer_start (EV_P_ ev_timer *w) 2171ev_timer_start (EV_P_ ev_timer *w)
1886{ 2172{
… …
1889 2175
1890 ev_at (w) += mn_now; 2176 ev_at (w) += mn_now;
1891 2177
1892 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 2178 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1893 2179
2180 EV_FREQUENT_CHECK;
2181
2182 ++timercnt;
1894 ev_start (EV_A_ (W)w, ++timercnt); 2183 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
1895 array_needsize (WT, timers, timermax, timercnt + 1, EMPTY2); 2184 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2);
1896 timers [timercnt] = (WT)w; 2185 ANHE_w (timers [ev_active (w)]) = (WT)w;
2186 ANHE_at_cache (timers [ev_active (w)]);
1897 upheap (timers, timercnt); 2187 upheap (timers, ev_active (w));
1898 2188
2189 EV_FREQUENT_CHECK;
2190
1899 /*assert (("internal timer heap corruption", timers [((W)w)->active] == w));*/ 2191 /*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
1900} 2192}
1901 2193
1902void noinline 2194void noinline
1903ev_timer_stop (EV_P_ ev_timer *w) 2195ev_timer_stop (EV_P_ ev_timer *w)
1904{ 2196{
1905 clear_pending (EV_A_ (W)w); 2197 clear_pending (EV_A_ (W)w);
1906 if (expect_false (!ev_is_active (w))) 2198 if (expect_false (!ev_is_active (w)))
1907 return; 2199 return;
1908 2200
1909 assert (("internal timer heap corruption", timers [((W)w)->active] == (WT)w)); 2201 EV_FREQUENT_CHECK;
1910 2202
1911 { 2203 {
1912 int active = ((W)w)->active; 2204 int active = ev_active (w);
1913 2205
2206 assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
2207
2208 --timercnt;
2209
1914 if (expect_true (active < timercnt)) 2210 if (expect_true (active < timercnt + HEAP0))
1915 { 2211 {
1916 timers [active] = timers [timercnt]; 2212 timers [active] = timers [timercnt + HEAP0];
1917 adjustheap (timers, timercnt, active); 2213 adjustheap (timers, timercnt, active);
1918 } 2214 }
1919
1920 --timercnt;
1921 } 2215 }
2216
2217 EV_FREQUENT_CHECK;
1922 2218
1923 ev_at (w) -= mn_now; 2219 ev_at (w) -= mn_now;
1924 2220
1925 ev_stop (EV_A_ (W)w); 2221 ev_stop (EV_A_ (W)w);
1926} 2222}
1927 2223
1928void noinline 2224void noinline
1929ev_timer_again (EV_P_ ev_timer *w) 2225ev_timer_again (EV_P_ ev_timer *w)
1930{ 2226{
2227 EV_FREQUENT_CHECK;
2228
1931 if (ev_is_active (w)) 2229 if (ev_is_active (w))
1932 { 2230 {
1933 if (w->repeat) 2231 if (w->repeat)
1934 { 2232 {
1935 ev_at (w) = mn_now + w->repeat; 2233 ev_at (w) = mn_now + w->repeat;
2234 ANHE_at_cache (timers [ev_active (w)]);
1936 adjustheap (timers, timercnt, ((W)w)->active); 2235 adjustheap (timers, timercnt, ev_active (w));
1937 } 2236 }
1938 else 2237 else
1939 ev_timer_stop (EV_A_ w); 2238 ev_timer_stop (EV_A_ w);
1940 } 2239 }
1941 else if (w->repeat) 2240 else if (w->repeat)
1942 { 2241 {
1943 w->at = w->repeat; 2242 ev_at (w) = w->repeat;
1944 ev_timer_start (EV_A_ w); 2243 ev_timer_start (EV_A_ w);
1945 } 2244 }
2245
2246 EV_FREQUENT_CHECK;
1946} 2247}
1947 2248
1948#if EV_PERIODIC_ENABLE 2249#if EV_PERIODIC_ENABLE
1949void noinline 2250void noinline
1950ev_periodic_start (EV_P_ ev_periodic *w) 2251ev_periodic_start (EV_P_ ev_periodic *w)
… …
1961 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2262 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1962 } 2263 }
1963 else 2264 else
1964 ev_at (w) = w->offset; 2265 ev_at (w) = w->offset;
1965 2266
2267 EV_FREQUENT_CHECK;
2268
2269 ++periodiccnt;
1966 ev_start (EV_A_ (W)w, ++periodiccnt); 2270 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
1967 array_needsize (WT, periodics, periodicmax, periodiccnt + 1, EMPTY2); 2271 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2);
1968 periodics [periodiccnt] = (WT)w; 2272 ANHE_w (periodics [ev_active (w)]) = (WT)w;
1969 upheap (periodics, periodiccnt); 2273 ANHE_at_cache (periodics [ev_active (w)]);
2274 upheap (periodics, ev_active (w));
1970 2275
2276 EV_FREQUENT_CHECK;
2277
1971 /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ 2278 /*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
1972} 2279}
1973 2280
1974void noinline 2281void noinline
1975ev_periodic_stop (EV_P_ ev_periodic *w) 2282ev_periodic_stop (EV_P_ ev_periodic *w)
1976{ 2283{
1977 clear_pending (EV_A_ (W)w); 2284 clear_pending (EV_A_ (W)w);
1978 if (expect_false (!ev_is_active (w))) 2285 if (expect_false (!ev_is_active (w)))
1979 return; 2286 return;
1980 2287
1981 assert (("internal periodic heap corruption", periodics [((W)w)->active] == (WT)w)); 2288 EV_FREQUENT_CHECK;
1982 2289
1983 { 2290 {
1984 int active = ((W)w)->active; 2291 int active = ev_active (w);
1985 2292
2293 assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
2294
2295 --periodiccnt;
2296
1986 if (expect_true (active < periodiccnt)) 2297 if (expect_true (active < periodiccnt + HEAP0))
1987 { 2298 {
1988 periodics [active] = periodics [periodiccnt]; 2299 periodics [active] = periodics [periodiccnt + HEAP0];
1989 adjustheap (periodics, periodiccnt, active); 2300 adjustheap (periodics, periodiccnt, active);
1990 } 2301 }
1991
1992 --periodiccnt;
1993 } 2302 }
2303
2304 EV_FREQUENT_CHECK;
1994 2305
1995 ev_stop (EV_A_ (W)w); 2306 ev_stop (EV_A_ (W)w);
1996} 2307}
1997 2308
1998void noinline 2309void noinline
… …
2018 return; 2329 return;
2019 2330
2020 assert (("ev_signal_start called with illegal signal number", w->signum > 0)); 2331 assert (("ev_signal_start called with illegal signal number", w->signum > 0));
2021 2332
2022 evpipe_init (EV_A); 2333 evpipe_init (EV_A);
2334
2335 EV_FREQUENT_CHECK;
2023 2336
2024 { 2337 {
2025#ifndef _WIN32 2338#ifndef _WIN32
2026 sigset_t full, prev; 2339 sigset_t full, prev;
2027 sigfillset (&full); 2340 sigfillset (&full);
… …
2048 sigfillset (&sa.sa_mask); 2361 sigfillset (&sa.sa_mask);
2049 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 2362 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2050 sigaction (w->signum, &sa, 0); 2363 sigaction (w->signum, &sa, 0);
2051#endif 2364#endif
2052 } 2365 }
2366
2367 EV_FREQUENT_CHECK;
2053} 2368}
2054 2369
2055void noinline 2370void noinline
2056ev_signal_stop (EV_P_ ev_signal *w) 2371ev_signal_stop (EV_P_ ev_signal *w)
2057{ 2372{
2058 clear_pending (EV_A_ (W)w); 2373 clear_pending (EV_A_ (W)w);
2059 if (expect_false (!ev_is_active (w))) 2374 if (expect_false (!ev_is_active (w)))
2060 return; 2375 return;
2061 2376
2377 EV_FREQUENT_CHECK;
2378
2062 wlist_del (&signals [w->signum - 1].head, (WL)w); 2379 wlist_del (&signals [w->signum - 1].head, (WL)w);
2063 ev_stop (EV_A_ (W)w); 2380 ev_stop (EV_A_ (W)w);
2064 2381
2065 if (!signals [w->signum - 1].head) 2382 if (!signals [w->signum - 1].head)
2066 signal (w->signum, SIG_DFL); 2383 signal (w->signum, SIG_DFL);
2384
2385 EV_FREQUENT_CHECK;
2067} 2386}
2068 2387
2069void 2388void
2070ev_child_start (EV_P_ ev_child *w) 2389ev_child_start (EV_P_ ev_child *w)
2071{ 2390{
… …
2073 assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 2392 assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2074#endif 2393#endif
2075 if (expect_false (ev_is_active (w))) 2394 if (expect_false (ev_is_active (w)))
2076 return; 2395 return;
2077 2396
2397 EV_FREQUENT_CHECK;
2398
2078 ev_start (EV_A_ (W)w, 1); 2399 ev_start (EV_A_ (W)w, 1);
2079 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 2400 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
2401
2402 EV_FREQUENT_CHECK;
2080} 2403}
2081 2404
2082void 2405void
2083ev_child_stop (EV_P_ ev_child *w) 2406ev_child_stop (EV_P_ ev_child *w)
2084{ 2407{
2085 clear_pending (EV_A_ (W)w); 2408 clear_pending (EV_A_ (W)w);
2086 if (expect_false (!ev_is_active (w))) 2409 if (expect_false (!ev_is_active (w)))
2087 return; 2410 return;
2088 2411
2412 EV_FREQUENT_CHECK;
2413
2089 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 2414 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
2090 ev_stop (EV_A_ (W)w); 2415 ev_stop (EV_A_ (W)w);
2416
2417 EV_FREQUENT_CHECK;
2091} 2418}
2092 2419
2093#if EV_STAT_ENABLE 2420#if EV_STAT_ENABLE
2094 2421
2095# ifdef _WIN32 2422# ifdef _WIN32
… …
2113 if (w->wd < 0) 2440 if (w->wd < 0)
2114 { 2441 {
2115 ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ 2442 ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2116 2443
2117 /* monitor some parent directory for speedup hints */ 2444 /* monitor some parent directory for speedup hints */
2445 /* note that exceeding the hardcoded limit is not a correctness issue, */
2446 /* but an efficiency issue only */
2118 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) 2447 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2119 { 2448 {
2120 char path [4096]; 2449 char path [4096];
2121 strcpy (path, w->path); 2450 strcpy (path, w->path);
2122 2451
… …
2248 } 2577 }
2249 2578
2250 } 2579 }
2251} 2580}
2252 2581
2582#endif
2583
2584#ifdef _WIN32
2585# define EV_LSTAT(p,b) _stati64 (p, b)
2586#else
2587# define EV_LSTAT(p,b) lstat (p, b)
2253#endif 2588#endif
2254 2589
2255void 2590void
2256ev_stat_stat (EV_P_ ev_stat *w) 2591ev_stat_stat (EV_P_ ev_stat *w)
2257{ 2592{
… …
2321 else 2656 else
2322#endif 2657#endif
2323 ev_timer_start (EV_A_ &w->timer); 2658 ev_timer_start (EV_A_ &w->timer);
2324 2659
2325 ev_start (EV_A_ (W)w, 1); 2660 ev_start (EV_A_ (W)w, 1);
2661
2662 EV_FREQUENT_CHECK;
2326} 2663}
2327 2664
2328void 2665void
2329ev_stat_stop (EV_P_ ev_stat *w) 2666ev_stat_stop (EV_P_ ev_stat *w)
2330{ 2667{
2331 clear_pending (EV_A_ (W)w); 2668 clear_pending (EV_A_ (W)w);
2332 if (expect_false (!ev_is_active (w))) 2669 if (expect_false (!ev_is_active (w)))
2333 return; 2670 return;
2334 2671
2672 EV_FREQUENT_CHECK;
2673
2335#if EV_USE_INOTIFY 2674#if EV_USE_INOTIFY
2336 infy_del (EV_A_ w); 2675 infy_del (EV_A_ w);
2337#endif 2676#endif
2338 ev_timer_stop (EV_A_ &w->timer); 2677 ev_timer_stop (EV_A_ &w->timer);
2339 2678
2340 ev_stop (EV_A_ (W)w); 2679 ev_stop (EV_A_ (W)w);
2680
2681 EV_FREQUENT_CHECK;
2341} 2682}
2342#endif 2683#endif
2343 2684
2344#if EV_IDLE_ENABLE 2685#if EV_IDLE_ENABLE
2345void 2686void
… …
2347{ 2688{
2348 if (expect_false (ev_is_active (w))) 2689 if (expect_false (ev_is_active (w)))
2349 return; 2690 return;
2350 2691
2351 pri_adjust (EV_A_ (W)w); 2692 pri_adjust (EV_A_ (W)w);
2693
2694 EV_FREQUENT_CHECK;
2352 2695
2353 { 2696 {
2354 int active = ++idlecnt [ABSPRI (w)]; 2697 int active = ++idlecnt [ABSPRI (w)];
2355 2698
2356 ++idleall; 2699 ++idleall;
2357 ev_start (EV_A_ (W)w, active); 2700 ev_start (EV_A_ (W)w, active);
2358 2701
2359 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); 2702 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);
2360 idles [ABSPRI (w)][active - 1] = w; 2703 idles [ABSPRI (w)][active - 1] = w;
2361 } 2704 }
2705
2706 EV_FREQUENT_CHECK;
2362} 2707}
2363 2708
2364void 2709void
2365ev_idle_stop (EV_P_ ev_idle *w) 2710ev_idle_stop (EV_P_ ev_idle *w)
2366{ 2711{
2367 clear_pending (EV_A_ (W)w); 2712 clear_pending (EV_A_ (W)w);
2368 if (expect_false (!ev_is_active (w))) 2713 if (expect_false (!ev_is_active (w)))
2369 return; 2714 return;
2370 2715
2716 EV_FREQUENT_CHECK;
2717
2371 { 2718 {
2372 int active = ((W)w)->active; 2719 int active = ev_active (w);
2373 2720
2374 idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; 2721 idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
2375 ((W)idles [ABSPRI (w)][active - 1])->active = active; 2722 ev_active (idles [ABSPRI (w)][active - 1]) = active;
2376 2723
2377 ev_stop (EV_A_ (W)w); 2724 ev_stop (EV_A_ (W)w);
2378 --idleall; 2725 --idleall;
2379 } 2726 }
2727
2728 EV_FREQUENT_CHECK;
2380} 2729}
2381#endif 2730#endif
2382 2731
2383void 2732void
2384ev_prepare_start (EV_P_ ev_prepare *w) 2733ev_prepare_start (EV_P_ ev_prepare *w)
2385{ 2734{
2386 if (expect_false (ev_is_active (w))) 2735 if (expect_false (ev_is_active (w)))
2387 return; 2736 return;
2737
2738 EV_FREQUENT_CHECK;
2388 2739
2389 ev_start (EV_A_ (W)w, ++preparecnt); 2740 ev_start (EV_A_ (W)w, ++preparecnt);
2390 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); 2741 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
2391 prepares [preparecnt - 1] = w; 2742 prepares [preparecnt - 1] = w;
2743
2744 EV_FREQUENT_CHECK;
2392} 2745}
2393 2746
2394void 2747void
2395ev_prepare_stop (EV_P_ ev_prepare *w) 2748ev_prepare_stop (EV_P_ ev_prepare *w)
2396{ 2749{
2397 clear_pending (EV_A_ (W)w); 2750 clear_pending (EV_A_ (W)w);
2398 if (expect_false (!ev_is_active (w))) 2751 if (expect_false (!ev_is_active (w)))
2399 return; 2752 return;
2400 2753
2754 EV_FREQUENT_CHECK;
2755
2401 { 2756 {
2402 int active = ((W)w)->active; 2757 int active = ev_active (w);
2758
2403 prepares [active - 1] = prepares [--preparecnt]; 2759 prepares [active - 1] = prepares [--preparecnt];
2404 ((W)prepares [active - 1])->active = active; 2760 ev_active (prepares [active - 1]) = active;
2405 } 2761 }
2406 2762
2407 ev_stop (EV_A_ (W)w); 2763 ev_stop (EV_A_ (W)w);
2764
2765 EV_FREQUENT_CHECK;
2408} 2766}
2409 2767
2410void 2768void
2411ev_check_start (EV_P_ ev_check *w) 2769ev_check_start (EV_P_ ev_check *w)
2412{ 2770{
2413 if (expect_false (ev_is_active (w))) 2771 if (expect_false (ev_is_active (w)))
2414 return; 2772 return;
2773
2774 EV_FREQUENT_CHECK;
2415 2775
2416 ev_start (EV_A_ (W)w, ++checkcnt); 2776 ev_start (EV_A_ (W)w, ++checkcnt);
2417 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); 2777 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
2418 checks [checkcnt - 1] = w; 2778 checks [checkcnt - 1] = w;
2779
2780 EV_FREQUENT_CHECK;
2419} 2781}
2420 2782
2421void 2783void
2422ev_check_stop (EV_P_ ev_check *w) 2784ev_check_stop (EV_P_ ev_check *w)
2423{ 2785{
2424 clear_pending (EV_A_ (W)w); 2786 clear_pending (EV_A_ (W)w);
2425 if (expect_false (!ev_is_active (w))) 2787 if (expect_false (!ev_is_active (w)))
2426 return; 2788 return;
2427 2789
2790 EV_FREQUENT_CHECK;
2791
2428 { 2792 {
2429 int active = ((W)w)->active; 2793 int active = ev_active (w);
2794
2430 checks [active - 1] = checks [--checkcnt]; 2795 checks [active - 1] = checks [--checkcnt];
2431 ((W)checks [active - 1])->active = active; 2796 ev_active (checks [active - 1]) = active;
2432 } 2797 }
2433 2798
2434 ev_stop (EV_A_ (W)w); 2799 ev_stop (EV_A_ (W)w);
2800
2801 EV_FREQUENT_CHECK;
2435} 2802}
2436 2803
2437#if EV_EMBED_ENABLE 2804#if EV_EMBED_ENABLE
2438void noinline 2805void noinline
2439ev_embed_sweep (EV_P_ ev_embed *w) 2806ev_embed_sweep (EV_P_ ev_embed *w)
… …
2466 ev_loop (EV_A_ EVLOOP_NONBLOCK); 2833 ev_loop (EV_A_ EVLOOP_NONBLOCK);
2467 } 2834 }
2468 } 2835 }
2469} 2836}
2470 2837
2838static void
2839embed_fork_cb (EV_P_ ev_fork *fork_w, int revents)
2840{
2841 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
2842
2843 {
2844 struct ev_loop *loop = w->other;
2845
2846 ev_loop_fork (EV_A);
2847 }
2848}
2849
2471#if 0 2850#if 0
2472static void 2851static void
2473embed_idle_cb (EV_P_ ev_idle *idle, int revents) 2852embed_idle_cb (EV_P_ ev_idle *idle, int revents)
2474{ 2853{
2475 ev_idle_stop (EV_A_ idle); 2854 ev_idle_stop (EV_A_ idle);
… …
2486 struct ev_loop *loop = w->other; 2865 struct ev_loop *loop = w->other;
2487 assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 2866 assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2488 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); 2867 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2489 } 2868 }
2490 2869
2870 EV_FREQUENT_CHECK;
2871
2491 ev_set_priority (&w->io, ev_priority (w)); 2872 ev_set_priority (&w->io, ev_priority (w));
2492 ev_io_start (EV_A_ &w->io); 2873 ev_io_start (EV_A_ &w->io);
2493 2874
2494 ev_prepare_init (&w->prepare, embed_prepare_cb); 2875 ev_prepare_init (&w->prepare, embed_prepare_cb);
2495 ev_set_priority (&w->prepare, EV_MINPRI); 2876 ev_set_priority (&w->prepare, EV_MINPRI);
2496 ev_prepare_start (EV_A_ &w->prepare); 2877 ev_prepare_start (EV_A_ &w->prepare);
2497 2878
2879 ev_fork_init (&w->fork, embed_fork_cb);
2880 ev_fork_start (EV_A_ &w->fork);
2881
2498 /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ 2882 /*ev_idle_init (&w->idle, e,bed_idle_cb);*/
2499 2883
2500 ev_start (EV_A_ (W)w, 1); 2884 ev_start (EV_A_ (W)w, 1);
2885
2886 EV_FREQUENT_CHECK;
2501} 2887}
2502 2888
2503void 2889void
2504ev_embed_stop (EV_P_ ev_embed *w) 2890ev_embed_stop (EV_P_ ev_embed *w)
2505{ 2891{
2506 clear_pending (EV_A_ (W)w); 2892 clear_pending (EV_A_ (W)w);
2507 if (expect_false (!ev_is_active (w))) 2893 if (expect_false (!ev_is_active (w)))
2508 return; 2894 return;
2509 2895
2896 EV_FREQUENT_CHECK;
2897
2510 ev_io_stop (EV_A_ &w->io); 2898 ev_io_stop (EV_A_ &w->io);
2511 ev_prepare_stop (EV_A_ &w->prepare); 2899 ev_prepare_stop (EV_A_ &w->prepare);
2900 ev_fork_stop (EV_A_ &w->fork);
2512 2901
2513 ev_stop (EV_A_ (W)w); 2902 EV_FREQUENT_CHECK;
2514} 2903}
2515#endif 2904#endif
2516 2905
2517#if EV_FORK_ENABLE 2906#if EV_FORK_ENABLE
2518void 2907void
2519ev_fork_start (EV_P_ ev_fork *w) 2908ev_fork_start (EV_P_ ev_fork *w)
2520{ 2909{
2521 if (expect_false (ev_is_active (w))) 2910 if (expect_false (ev_is_active (w)))
2522 return; 2911 return;
2912
2913 EV_FREQUENT_CHECK;
2523 2914
2524 ev_start (EV_A_ (W)w, ++forkcnt); 2915 ev_start (EV_A_ (W)w, ++forkcnt);
2525 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); 2916 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);
2526 forks [forkcnt - 1] = w; 2917 forks [forkcnt - 1] = w;
2918
2919 EV_FREQUENT_CHECK;
2527} 2920}
2528 2921
2529void 2922void
2530ev_fork_stop (EV_P_ ev_fork *w) 2923ev_fork_stop (EV_P_ ev_fork *w)
2531{ 2924{
2532 clear_pending (EV_A_ (W)w); 2925 clear_pending (EV_A_ (W)w);
2533 if (expect_false (!ev_is_active (w))) 2926 if (expect_false (!ev_is_active (w)))
2534 return; 2927 return;
2535 2928
2929 EV_FREQUENT_CHECK;
2930
2536 { 2931 {
2537 int active = ((W)w)->active; 2932 int active = ev_active (w);
2933
2538 forks [active - 1] = forks [--forkcnt]; 2934 forks [active - 1] = forks [--forkcnt];
2539 ((W)forks [active - 1])->active = active; 2935 ev_active (forks [active - 1]) = active;
2540 } 2936 }
2541 2937
2542 ev_stop (EV_A_ (W)w); 2938 ev_stop (EV_A_ (W)w);
2939
2940 EV_FREQUENT_CHECK;
2543} 2941}
2544#endif 2942#endif
2545 2943
2546#if EV_ASYNC_ENABLE 2944#if EV_ASYNC_ENABLE
2547void 2945void
… …
2549{ 2947{
2550 if (expect_false (ev_is_active (w))) 2948 if (expect_false (ev_is_active (w)))
2551 return; 2949 return;
2552 2950
2553 evpipe_init (EV_A); 2951 evpipe_init (EV_A);
2952
2953 EV_FREQUENT_CHECK;
2554 2954
2555 ev_start (EV_A_ (W)w, ++asynccnt); 2955 ev_start (EV_A_ (W)w, ++asynccnt);
2556 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); 2956 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2);
2557 asyncs [asynccnt - 1] = w; 2957 asyncs [asynccnt - 1] = w;
2958
2959 EV_FREQUENT_CHECK;
2558} 2960}
2559 2961
2560void 2962void
2561ev_async_stop (EV_P_ ev_async *w) 2963ev_async_stop (EV_P_ ev_async *w)
2562{ 2964{
2563 clear_pending (EV_A_ (W)w); 2965 clear_pending (EV_A_ (W)w);
2564 if (expect_false (!ev_is_active (w))) 2966 if (expect_false (!ev_is_active (w)))
2565 return; 2967 return;
2566 2968
2969 EV_FREQUENT_CHECK;
2970
2567 { 2971 {
2568 int active = ((W)w)->active; 2972 int active = ev_active (w);
2973
2569 asyncs [active - 1] = asyncs [--asynccnt]; 2974 asyncs [active - 1] = asyncs [--asynccnt];
2570 ((W)asyncs [active - 1])->active = active; 2975 ev_active (asyncs [active - 1]) = active;
2571 } 2976 }
2572 2977
2573 ev_stop (EV_A_ (W)w); 2978 ev_stop (EV_A_ (W)w);
2979
2980 EV_FREQUENT_CHECK;
2574} 2981}
2575 2982
2576void 2983void
2577ev_async_send (EV_P_ ev_async *w) 2984ev_async_send (EV_P_ ev_async *w)
2578{ 2985{
… …
2595once_cb (EV_P_ struct ev_once *once, int revents) 3002once_cb (EV_P_ struct ev_once *once, int revents)
2596{ 3003{
2597 void (*cb)(int revents, void *arg) = once->cb; 3004 void (*cb)(int revents, void *arg) = once->cb;
2598 void *arg = once->arg; 3005 void *arg = once->arg;
2599 3006
2600 ev_io_stop (EV_A_ &once->io); 3007 ev_io_stop (EV_A_ &once->io);
2601 ev_timer_stop (EV_A_ &once->to); 3008 ev_timer_stop (EV_A_ &once->to);
2602 ev_free (once); 3009 ev_free (once);
2603 3010
2604 cb (revents, arg); 3011 cb (revents, arg);
2605} 3012}

Diff Legend

– Removed lines
+ Added lines
< Changed lines
> Changed lines