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Comparing libev/ev.c (file contents):
Revision 1.176 by root, Tue Dec 11 04:31:55 2007 UTC vs.
Revision 1.198 by root, Sun Dec 23 04:45:51 2007 UTC

… …
51# ifndef EV_USE_MONOTONIC 51# ifndef EV_USE_MONOTONIC
52# define EV_USE_MONOTONIC 0 52# define EV_USE_MONOTONIC 0
53# endif 53# endif
54# ifndef EV_USE_REALTIME 54# ifndef EV_USE_REALTIME
55# define EV_USE_REALTIME 0 55# define EV_USE_REALTIME 0
56# endif
57# endif
58
59# ifndef EV_USE_NANOSLEEP
60# if HAVE_NANOSLEEP
61# define EV_USE_NANOSLEEP 1
62# else
63# define EV_USE_NANOSLEEP 0
56# endif 64# endif
57# endif 65# endif
58 66
59# ifndef EV_USE_SELECT 67# ifndef EV_USE_SELECT
60# if HAVE_SELECT && HAVE_SYS_SELECT_H 68# if HAVE_SELECT && HAVE_SYS_SELECT_H
… …
146 154
147#ifndef EV_USE_REALTIME 155#ifndef EV_USE_REALTIME
148# define EV_USE_REALTIME 0 156# define EV_USE_REALTIME 0
149#endif 157#endif
150 158
159#ifndef EV_USE_NANOSLEEP
160# define EV_USE_NANOSLEEP 0
161#endif
162
151#ifndef EV_USE_SELECT 163#ifndef EV_USE_SELECT
152# define EV_USE_SELECT 1 164# define EV_USE_SELECT 1
153#endif 165#endif
154 166
155#ifndef EV_USE_POLL 167#ifndef EV_USE_POLL
… …
202#ifndef CLOCK_REALTIME 214#ifndef CLOCK_REALTIME
203# undef EV_USE_REALTIME 215# undef EV_USE_REALTIME
204# define EV_USE_REALTIME 0 216# define EV_USE_REALTIME 0
205#endif 217#endif
206 218
219#if !EV_STAT_ENABLE
220# undef EV_USE_INOTIFY
221# define EV_USE_INOTIFY 0
222#endif
223
224#if !EV_USE_NANOSLEEP
225# ifndef _WIN32
226# include <sys/select.h>
227# endif
228#endif
229
230#if EV_USE_INOTIFY
231# include <sys/inotify.h>
232#endif
233
207#if EV_SELECT_IS_WINSOCKET 234#if EV_SELECT_IS_WINSOCKET
208# include <winsock.h> 235# include <winsock.h>
209#endif
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 236#endif
218 237
219/**/ 238/**/
220 239
221/* 240/*
222 * This is used to avoid floating point rounding problems. 241 * This is used to avoid floating point rounding problems.
223 * It is added to ev_rt_now when scheduling periodics 242 * It is added to ev_rt_now when scheduling periodics
224 * to ensure progress, time-wise, even when rounding 243 * to ensure progress, time-wise, even when rounding
225 * errors are against us. 244 * errors are against us.
226 * This value is good at least till the year 4000 245 * This value is good at least till the year 4000.
227 * and intervals up to 20 years.
228 * Better solutions welcome. 246 * Better solutions welcome.
229 */ 247 */
230#define TIME_EPSILON 0.0001220703125 /* 1/8192 */ 248#define TIME_EPSILON 0.0001220703125 /* 1/8192 */
231 249
232#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 250#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
233#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 251#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
234/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ 252/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */
235 253
236#if __GNUC__ >= 3 254#if __GNUC__ >= 4
237# define expect(expr,value) __builtin_expect ((expr),(value)) 255# define expect(expr,value) __builtin_expect ((expr),(value))
238# define noinline __attribute__ ((noinline)) 256# define noinline __attribute__ ((noinline))
239#else 257#else
240# define expect(expr,value) (expr) 258# define expect(expr,value) (expr)
241# define noinline 259# define noinline
… …
262 280
263typedef ev_watcher *W; 281typedef ev_watcher *W;
264typedef ev_watcher_list *WL; 282typedef ev_watcher_list *WL;
265typedef ev_watcher_time *WT; 283typedef ev_watcher_time *WT;
266 284
285#if EV_USE_MONOTONIC
286/* sig_atomic_t is used to avoid per-thread variables or locking but still */
287/* giving it a reasonably high chance of working on typical architetcures */
267static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 288static sig_atomic_t have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
289#endif
268 290
269#ifdef _WIN32 291#ifdef _WIN32
270# include "ev_win32.c" 292# include "ev_win32.c"
271#endif 293#endif
272 294
… …
408{ 430{
409 return ev_rt_now; 431 return ev_rt_now;
410} 432}
411#endif 433#endif
412 434
435void
436ev_sleep (ev_tstamp delay)
437{
438 if (delay > 0.)
439 {
440#if EV_USE_NANOSLEEP
441 struct timespec ts;
442
443 ts.tv_sec = (time_t)delay;
444 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
445
446 nanosleep (&ts, 0);
447#elif defined(_WIN32)
448 Sleep (delay * 1e3);
449#else
450 struct timeval tv;
451
452 tv.tv_sec = (time_t)delay;
453 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
454
455 select (0, 0, 0, 0, &tv);
456#endif
457 }
458}
459
460/*****************************************************************************/
461
413int inline_size 462int inline_size
414array_nextsize (int elem, int cur, int cnt) 463array_nextsize (int elem, int cur, int cnt)
415{ 464{
416 int ncur = cur + 1; 465 int ncur = cur + 1;
417 466
… …
477 pendings [pri][w_->pending - 1].w = w_; 526 pendings [pri][w_->pending - 1].w = w_;
478 pendings [pri][w_->pending - 1].events = revents; 527 pendings [pri][w_->pending - 1].events = revents;
479 } 528 }
480} 529}
481 530
482void inline_size 531void inline_speed
483queue_events (EV_P_ W *events, int eventcnt, int type) 532queue_events (EV_P_ W *events, int eventcnt, int type)
484{ 533{
485 int i; 534 int i;
486 535
487 for (i = 0; i < eventcnt; ++i) 536 for (i = 0; i < eventcnt; ++i)
… …
534 { 583 {
535 int fd = fdchanges [i]; 584 int fd = fdchanges [i];
536 ANFD *anfd = anfds + fd; 585 ANFD *anfd = anfds + fd;
537 ev_io *w; 586 ev_io *w;
538 587
539 int events = 0; 588 unsigned char events = 0;
540 589
541 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 590 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
542 events |= w->events; 591 events |= (unsigned char)w->events;
543 592
544#if EV_SELECT_IS_WINSOCKET 593#if EV_SELECT_IS_WINSOCKET
545 if (events) 594 if (events)
546 { 595 {
547 unsigned long argp; 596 unsigned long argp;
548 anfd->handle = _get_osfhandle (fd); 597 anfd->handle = _get_osfhandle (fd);
549 assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); 598 assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
550 } 599 }
551#endif 600#endif
552 601
602 {
603 unsigned char o_events = anfd->events;
604 unsigned char o_reify = anfd->reify;
605
553 anfd->reify = 0; 606 anfd->reify = 0;
554
555 backend_modify (EV_A_ fd, anfd->events, events);
556 anfd->events = events; 607 anfd->events = events;
608
609 if (o_events != events || o_reify & EV_IOFDSET)
610 backend_modify (EV_A_ fd, o_events, events);
611 }
557 } 612 }
558 613
559 fdchangecnt = 0; 614 fdchangecnt = 0;
560} 615}
561 616
562void inline_size 617void inline_size
563fd_change (EV_P_ int fd) 618fd_change (EV_P_ int fd, int flags)
564{ 619{
565 if (expect_false (anfds [fd].reify)) 620 unsigned char reify = anfds [fd].reify;
566 return;
567
568 anfds [fd].reify = 1; 621 anfds [fd].reify |= flags;
569 622
623 if (expect_true (!reify))
624 {
570 ++fdchangecnt; 625 ++fdchangecnt;
571 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 626 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
572 fdchanges [fdchangecnt - 1] = fd; 627 fdchanges [fdchangecnt - 1] = fd;
628 }
573} 629}
574 630
575void inline_speed 631void inline_speed
576fd_kill (EV_P_ int fd) 632fd_kill (EV_P_ int fd)
577{ 633{
… …
628 684
629 for (fd = 0; fd < anfdmax; ++fd) 685 for (fd = 0; fd < anfdmax; ++fd)
630 if (anfds [fd].events) 686 if (anfds [fd].events)
631 { 687 {
632 anfds [fd].events = 0; 688 anfds [fd].events = 0;
633 fd_change (EV_A_ fd); 689 fd_change (EV_A_ fd, EV_IOFDSET | 1);
634 } 690 }
635} 691}
636 692
637/*****************************************************************************/ 693/*****************************************************************************/
638 694
639void inline_speed 695void inline_speed
640upheap (WT *heap, int k) 696upheap (WT *heap, int k)
641{ 697{
642 WT w = heap [k]; 698 WT w = heap [k];
643 699
644 while (k && heap [k >> 1]->at > w->at) 700 while (k)
645 { 701 {
702 int p = (k - 1) >> 1;
703
704 if (heap [p]->at <= w->at)
705 break;
706
646 heap [k] = heap [k >> 1]; 707 heap [k] = heap [p];
647 ((W)heap [k])->active = k + 1; 708 ((W)heap [k])->active = k + 1;
648 k >>= 1; 709 k = p;
649 } 710 }
650 711
651 heap [k] = w; 712 heap [k] = w;
652 ((W)heap [k])->active = k + 1; 713 ((W)heap [k])->active = k + 1;
653
654} 714}
655 715
656void inline_speed 716void inline_speed
657downheap (WT *heap, int N, int k) 717downheap (WT *heap, int N, int k)
658{ 718{
659 WT w = heap [k]; 719 WT w = heap [k];
660 720
661 while (k < (N >> 1)) 721 for (;;)
662 { 722 {
663 int j = k << 1; 723 int c = (k << 1) + 1;
664 724
665 if (j + 1 < N && heap [j]->at > heap [j + 1]->at) 725 if (c >= N)
666 ++j;
667
668 if (w->at <= heap [j]->at)
669 break; 726 break;
670 727
728 c += c + 1 < N && heap [c]->at > heap [c + 1]->at
729 ? 1 : 0;
730
731 if (w->at <= heap [c]->at)
732 break;
733
671 heap [k] = heap [j]; 734 heap [k] = heap [c];
672 ((W)heap [k])->active = k + 1; 735 ((W)heap [k])->active = k + 1;
736
673 k = j; 737 k = c;
674 } 738 }
675 739
676 heap [k] = w; 740 heap [k] = w;
677 ((W)heap [k])->active = k + 1; 741 ((W)heap [k])->active = k + 1;
678} 742}
… …
785 ev_unref (EV_A); /* child watcher should not keep loop alive */ 849 ev_unref (EV_A); /* child watcher should not keep loop alive */
786} 850}
787 851
788/*****************************************************************************/ 852/*****************************************************************************/
789 853
790static ev_child *childs [EV_PID_HASHSIZE]; 854static WL childs [EV_PID_HASHSIZE];
791 855
792#ifndef _WIN32 856#ifndef _WIN32
793 857
794static ev_signal childev; 858static ev_signal childev;
795 859
… …
910} 974}
911 975
912unsigned int 976unsigned int
913ev_embeddable_backends (void) 977ev_embeddable_backends (void)
914{ 978{
915 return EVBACKEND_EPOLL 979 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
916 | EVBACKEND_KQUEUE 980
917 | EVBACKEND_PORT; 981 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
982 /* please fix it and tell me how to detect the fix */
983 flags &= ~EVBACKEND_EPOLL;
984
985 return flags;
918} 986}
919 987
920unsigned int 988unsigned int
921ev_backend (EV_P) 989ev_backend (EV_P)
922{ 990{
… …
925 993
926unsigned int 994unsigned int
927ev_loop_count (EV_P) 995ev_loop_count (EV_P)
928{ 996{
929 return loop_count; 997 return loop_count;
998}
999
1000void
1001ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
1002{
1003 io_blocktime = interval;
1004}
1005
1006void
1007ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
1008{
1009 timeout_blocktime = interval;
930} 1010}
931 1011
932static void noinline 1012static void noinline
933loop_init (EV_P_ unsigned int flags) 1013loop_init (EV_P_ unsigned int flags)
934{ 1014{
… …
945 ev_rt_now = ev_time (); 1025 ev_rt_now = ev_time ();
946 mn_now = get_clock (); 1026 mn_now = get_clock ();
947 now_floor = mn_now; 1027 now_floor = mn_now;
948 rtmn_diff = ev_rt_now - mn_now; 1028 rtmn_diff = ev_rt_now - mn_now;
949 1029
1030 io_blocktime = 0.;
1031 timeout_blocktime = 0.;
1032
950 /* pid check not overridable via env */ 1033 /* pid check not overridable via env */
951#ifndef _WIN32 1034#ifndef _WIN32
952 if (flags & EVFLAG_FORKCHECK) 1035 if (flags & EVFLAG_FORKCHECK)
953 curpid = getpid (); 1036 curpid = getpid ();
954#endif 1037#endif
… …
1022 array_free (pending, [i]); 1105 array_free (pending, [i]);
1023#if EV_IDLE_ENABLE 1106#if EV_IDLE_ENABLE
1024 array_free (idle, [i]); 1107 array_free (idle, [i]);
1025#endif 1108#endif
1026 } 1109 }
1110
1111 ev_free (anfds); anfdmax = 0;
1027 1112
1028 /* have to use the microsoft-never-gets-it-right macro */ 1113 /* have to use the microsoft-never-gets-it-right macro */
1029 array_free (fdchange, EMPTY); 1114 array_free (fdchange, EMPTY);
1030 array_free (timer, EMPTY); 1115 array_free (timer, EMPTY);
1031#if EV_PERIODIC_ENABLE 1116#if EV_PERIODIC_ENABLE
1032 array_free (periodic, EMPTY); 1117 array_free (periodic, EMPTY);
1118#endif
1119#if EV_FORK_ENABLE
1120 array_free (fork, EMPTY);
1033#endif 1121#endif
1034 array_free (prepare, EMPTY); 1122 array_free (prepare, EMPTY);
1035 array_free (check, EMPTY); 1123 array_free (check, EMPTY);
1036 1124
1037 backend = 0; 1125 backend = 0;
… …
1207void inline_size 1295void inline_size
1208timers_reify (EV_P) 1296timers_reify (EV_P)
1209{ 1297{
1210 while (timercnt && ((WT)timers [0])->at <= mn_now) 1298 while (timercnt && ((WT)timers [0])->at <= mn_now)
1211 { 1299 {
1212 ev_timer *w = timers [0]; 1300 ev_timer *w = (ev_timer *)timers [0];
1213 1301
1214 /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ 1302 /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
1215 1303
1216 /* first reschedule or stop timer */ 1304 /* first reschedule or stop timer */
1217 if (w->repeat) 1305 if (w->repeat)
… …
1220 1308
1221 ((WT)w)->at += w->repeat; 1309 ((WT)w)->at += w->repeat;
1222 if (((WT)w)->at < mn_now) 1310 if (((WT)w)->at < mn_now)
1223 ((WT)w)->at = mn_now; 1311 ((WT)w)->at = mn_now;
1224 1312
1225 downheap ((WT *)timers, timercnt, 0); 1313 downheap (timers, timercnt, 0);
1226 } 1314 }
1227 else 1315 else
1228 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ 1316 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1229 1317
1230 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); 1318 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
… …
1235void inline_size 1323void inline_size
1236periodics_reify (EV_P) 1324periodics_reify (EV_P)
1237{ 1325{
1238 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) 1326 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1239 { 1327 {
1240 ev_periodic *w = periodics [0]; 1328 ev_periodic *w = (ev_periodic *)periodics [0];
1241 1329
1242 /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ 1330 /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
1243 1331
1244 /* first reschedule or stop timer */ 1332 /* first reschedule or stop timer */
1245 if (w->reschedule_cb) 1333 if (w->reschedule_cb)
1246 { 1334 {
1247 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); 1335 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON);
1248 assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); 1336 assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1249 downheap ((WT *)periodics, periodiccnt, 0); 1337 downheap (periodics, periodiccnt, 0);
1250 } 1338 }
1251 else if (w->interval) 1339 else if (w->interval)
1252 { 1340 {
1253 ((WT)w)->at = w->offset + floor ((ev_rt_now + TIME_EPSILON - w->offset) / w->interval + 1.) * w->interval; 1341 ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1342 if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval;
1254 assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); 1343 assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
1255 downheap ((WT *)periodics, periodiccnt, 0); 1344 downheap (periodics, periodiccnt, 0);
1256 } 1345 }
1257 else 1346 else
1258 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 1347 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1259 1348
1260 ev_feed_event (EV_A_ (W)w, EV_PERIODIC); 1349 ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
… …
1267 int i; 1356 int i;
1268 1357
1269 /* adjust periodics after time jump */ 1358 /* adjust periodics after time jump */
1270 for (i = 0; i < periodiccnt; ++i) 1359 for (i = 0; i < periodiccnt; ++i)
1271 { 1360 {
1272 ev_periodic *w = periodics [i]; 1361 ev_periodic *w = (ev_periodic *)periodics [i];
1273 1362
1274 if (w->reschedule_cb) 1363 if (w->reschedule_cb)
1275 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); 1364 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1276 else if (w->interval) 1365 else if (w->interval)
1277 ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 1366 ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1278 } 1367 }
1279 1368
1280 /* now rebuild the heap */ 1369 /* now rebuild the heap */
1281 for (i = periodiccnt >> 1; i--; ) 1370 for (i = periodiccnt >> 1; i--; )
1282 downheap ((WT *)periodics, periodiccnt, i); 1371 downheap (periodics, periodiccnt, i);
1283} 1372}
1284#endif 1373#endif
1285 1374
1286#if EV_IDLE_ENABLE 1375#if EV_IDLE_ENABLE
1287void inline_size 1376void inline_size
… …
1304 } 1393 }
1305 } 1394 }
1306} 1395}
1307#endif 1396#endif
1308 1397
1309int inline_size 1398void inline_speed
1310time_update_monotonic (EV_P) 1399time_update (EV_P_ ev_tstamp max_block)
1311{ 1400{
1401 int i;
1402
1403#if EV_USE_MONOTONIC
1404 if (expect_true (have_monotonic))
1405 {
1406 ev_tstamp odiff = rtmn_diff;
1407
1312 mn_now = get_clock (); 1408 mn_now = get_clock ();
1313 1409
1410 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
1411 /* interpolate in the meantime */
1314 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) 1412 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1315 { 1413 {
1316 ev_rt_now = rtmn_diff + mn_now; 1414 ev_rt_now = rtmn_diff + mn_now;
1317 return 0; 1415 return;
1318 } 1416 }
1319 else 1417
1320 {
1321 now_floor = mn_now; 1418 now_floor = mn_now;
1322 ev_rt_now = ev_time (); 1419 ev_rt_now = ev_time ();
1323 return 1;
1324 }
1325}
1326 1420
1327void inline_size 1421 /* loop a few times, before making important decisions.
1328time_update (EV_P) 1422 * on the choice of "4": one iteration isn't enough,
1329{ 1423 * in case we get preempted during the calls to
1330 int i; 1424 * ev_time and get_clock. a second call is almost guaranteed
1331 1425 * to succeed in that case, though. and looping a few more times
1332#if EV_USE_MONOTONIC 1426 * doesn't hurt either as we only do this on time-jumps or
1333 if (expect_true (have_monotonic)) 1427 * in the unlikely event of having been preempted here.
1334 { 1428 */
1335 if (time_update_monotonic (EV_A)) 1429 for (i = 4; --i; )
1336 { 1430 {
1337 ev_tstamp odiff = rtmn_diff;
1338
1339 /* loop a few times, before making important decisions.
1340 * on the choice of "4": one iteration isn't enough,
1341 * in case we get preempted during the calls to
1342 * ev_time and get_clock. a second call is almost guaranteed
1343 * to succeed in that case, though. and looping a few more times
1344 * doesn't hurt either as we only do this on time-jumps or
1345 * in the unlikely event of having been preempted here.
1346 */
1347 for (i = 4; --i; )
1348 {
1349 rtmn_diff = ev_rt_now - mn_now; 1431 rtmn_diff = ev_rt_now - mn_now;
1350 1432
1351 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) 1433 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1352 return; /* all is well */ 1434 return; /* all is well */
1353 1435
1354 ev_rt_now = ev_time (); 1436 ev_rt_now = ev_time ();
1355 mn_now = get_clock (); 1437 mn_now = get_clock ();
1356 now_floor = mn_now; 1438 now_floor = mn_now;
1357 } 1439 }
1358 1440
1359# if EV_PERIODIC_ENABLE 1441# if EV_PERIODIC_ENABLE
1360 periodics_reschedule (EV_A); 1442 periodics_reschedule (EV_A);
1361# endif 1443# endif
1362 /* no timer adjustment, as the monotonic clock doesn't jump */ 1444 /* no timer adjustment, as the monotonic clock doesn't jump */
1363 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ 1445 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1364 }
1365 } 1446 }
1366 else 1447 else
1367#endif 1448#endif
1368 { 1449 {
1369 ev_rt_now = ev_time (); 1450 ev_rt_now = ev_time ();
1370 1451
1371 if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) 1452 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
1372 { 1453 {
1373#if EV_PERIODIC_ENABLE 1454#if EV_PERIODIC_ENABLE
1374 periodics_reschedule (EV_A); 1455 periodics_reschedule (EV_A);
1375#endif 1456#endif
1376
1377 /* adjust timers. this is easy, as the offset is the same for all of them */ 1457 /* adjust timers. this is easy, as the offset is the same for all of them */
1378 for (i = 0; i < timercnt; ++i) 1458 for (i = 0; i < timercnt; ++i)
1379 ((WT)timers [i])->at += ev_rt_now - mn_now; 1459 ((WT)timers [i])->at += ev_rt_now - mn_now;
1380 } 1460 }
1381 1461
… …
1444 /* update fd-related kernel structures */ 1524 /* update fd-related kernel structures */
1445 fd_reify (EV_A); 1525 fd_reify (EV_A);
1446 1526
1447 /* calculate blocking time */ 1527 /* calculate blocking time */
1448 { 1528 {
1449 ev_tstamp block; 1529 ev_tstamp waittime = 0.;
1530 ev_tstamp sleeptime = 0.;
1450 1531
1451 if (expect_false (flags & EVLOOP_NONBLOCK || idleall || !activecnt)) 1532 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))
1452 block = 0.; /* do not block at all */
1453 else
1454 { 1533 {
1455 /* update time to cancel out callback processing overhead */ 1534 /* update time to cancel out callback processing overhead */
1456#if EV_USE_MONOTONIC
1457 if (expect_true (have_monotonic))
1458 time_update_monotonic (EV_A); 1535 time_update (EV_A_ 1e100);
1459 else
1460#endif
1461 {
1462 ev_rt_now = ev_time ();
1463 mn_now = ev_rt_now;
1464 }
1465 1536
1466 block = MAX_BLOCKTIME; 1537 waittime = MAX_BLOCKTIME;
1467 1538
1468 if (timercnt) 1539 if (timercnt)
1469 { 1540 {
1470 ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; 1541 ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1471 if (block > to) block = to; 1542 if (waittime > to) waittime = to;
1472 } 1543 }
1473 1544
1474#if EV_PERIODIC_ENABLE 1545#if EV_PERIODIC_ENABLE
1475 if (periodiccnt) 1546 if (periodiccnt)
1476 { 1547 {
1477 ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; 1548 ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1478 if (block > to) block = to; 1549 if (waittime > to) waittime = to;
1479 } 1550 }
1480#endif 1551#endif
1481 1552
1482 if (expect_false (block < 0.)) block = 0.; 1553 if (expect_false (waittime < timeout_blocktime))
1554 waittime = timeout_blocktime;
1555
1556 sleeptime = waittime - backend_fudge;
1557
1558 if (expect_true (sleeptime > io_blocktime))
1559 sleeptime = io_blocktime;
1560
1561 if (sleeptime)
1562 {
1563 ev_sleep (sleeptime);
1564 waittime -= sleeptime;
1565 }
1483 } 1566 }
1484 1567
1485 ++loop_count; 1568 ++loop_count;
1486 backend_poll (EV_A_ block); 1569 backend_poll (EV_A_ waittime);
1570
1571 /* update ev_rt_now, do magic */
1572 time_update (EV_A_ waittime + sleeptime);
1487 } 1573 }
1488
1489 /* update ev_rt_now, do magic */
1490 time_update (EV_A);
1491 1574
1492 /* queue pending timers and reschedule them */ 1575 /* queue pending timers and reschedule them */
1493 timers_reify (EV_A); /* relative timers called last */ 1576 timers_reify (EV_A); /* relative timers called last */
1494#if EV_PERIODIC_ENABLE 1577#if EV_PERIODIC_ENABLE
1495 periodics_reify (EV_A); /* absolute timers called first */ 1578 periodics_reify (EV_A); /* absolute timers called first */
… …
1606 1689
1607 assert (("ev_io_start called with negative fd", fd >= 0)); 1690 assert (("ev_io_start called with negative fd", fd >= 0));
1608 1691
1609 ev_start (EV_A_ (W)w, 1); 1692 ev_start (EV_A_ (W)w, 1);
1610 array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); 1693 array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1611 wlist_add ((WL *)&anfds[fd].head, (WL)w); 1694 wlist_add (&anfds[fd].head, (WL)w);
1612 1695
1613 fd_change (EV_A_ fd); 1696 fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1);
1697 w->events &= ~EV_IOFDSET;
1614} 1698}
1615 1699
1616void noinline 1700void noinline
1617ev_io_stop (EV_P_ ev_io *w) 1701ev_io_stop (EV_P_ ev_io *w)
1618{ 1702{
… …
1620 if (expect_false (!ev_is_active (w))) 1704 if (expect_false (!ev_is_active (w)))
1621 return; 1705 return;
1622 1706
1623 assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); 1707 assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1624 1708
1625 wlist_del ((WL *)&anfds[w->fd].head, (WL)w); 1709 wlist_del (&anfds[w->fd].head, (WL)w);
1626 ev_stop (EV_A_ (W)w); 1710 ev_stop (EV_A_ (W)w);
1627 1711
1628 fd_change (EV_A_ w->fd); 1712 fd_change (EV_A_ w->fd, 1);
1629} 1713}
1630 1714
1631void noinline 1715void noinline
1632ev_timer_start (EV_P_ ev_timer *w) 1716ev_timer_start (EV_P_ ev_timer *w)
1633{ 1717{
… …
1637 ((WT)w)->at += mn_now; 1721 ((WT)w)->at += mn_now;
1638 1722
1639 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 1723 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1640 1724
1641 ev_start (EV_A_ (W)w, ++timercnt); 1725 ev_start (EV_A_ (W)w, ++timercnt);
1642 array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2); 1726 array_needsize (WT, timers, timermax, timercnt, EMPTY2);
1643 timers [timercnt - 1] = w; 1727 timers [timercnt - 1] = (WT)w;
1644 upheap ((WT *)timers, timercnt - 1); 1728 upheap (timers, timercnt - 1);
1645 1729
1646 /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ 1730 /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/
1647} 1731}
1648 1732
1649void noinline 1733void noinline
… …
1651{ 1735{
1652 clear_pending (EV_A_ (W)w); 1736 clear_pending (EV_A_ (W)w);
1653 if (expect_false (!ev_is_active (w))) 1737 if (expect_false (!ev_is_active (w)))
1654 return; 1738 return;
1655 1739
1656 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); 1740 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w));
1657 1741
1658 { 1742 {
1659 int active = ((W)w)->active; 1743 int active = ((W)w)->active;
1660 1744
1661 if (expect_true (--active < --timercnt)) 1745 if (expect_true (--active < --timercnt))
1662 { 1746 {
1663 timers [active] = timers [timercnt]; 1747 timers [active] = timers [timercnt];
1664 adjustheap ((WT *)timers, timercnt, active); 1748 adjustheap (timers, timercnt, active);
1665 } 1749 }
1666 } 1750 }
1667 1751
1668 ((WT)w)->at -= mn_now; 1752 ((WT)w)->at -= mn_now;
1669 1753
… …
1676 if (ev_is_active (w)) 1760 if (ev_is_active (w))
1677 { 1761 {
1678 if (w->repeat) 1762 if (w->repeat)
1679 { 1763 {
1680 ((WT)w)->at = mn_now + w->repeat; 1764 ((WT)w)->at = mn_now + w->repeat;
1681 adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); 1765 adjustheap (timers, timercnt, ((W)w)->active - 1);
1682 } 1766 }
1683 else 1767 else
1684 ev_timer_stop (EV_A_ w); 1768 ev_timer_stop (EV_A_ w);
1685 } 1769 }
1686 else if (w->repeat) 1770 else if (w->repeat)
… …
1707 } 1791 }
1708 else 1792 else
1709 ((WT)w)->at = w->offset; 1793 ((WT)w)->at = w->offset;
1710 1794
1711 ev_start (EV_A_ (W)w, ++periodiccnt); 1795 ev_start (EV_A_ (W)w, ++periodiccnt);
1712 array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); 1796 array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2);
1713 periodics [periodiccnt - 1] = w; 1797 periodics [periodiccnt - 1] = (WT)w;
1714 upheap ((WT *)periodics, periodiccnt - 1); 1798 upheap (periodics, periodiccnt - 1);
1715 1799
1716 /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ 1800 /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/
1717} 1801}
1718 1802
1719void noinline 1803void noinline
… …
1721{ 1805{
1722 clear_pending (EV_A_ (W)w); 1806 clear_pending (EV_A_ (W)w);
1723 if (expect_false (!ev_is_active (w))) 1807 if (expect_false (!ev_is_active (w)))
1724 return; 1808 return;
1725 1809
1726 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); 1810 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w));
1727 1811
1728 { 1812 {
1729 int active = ((W)w)->active; 1813 int active = ((W)w)->active;
1730 1814
1731 if (expect_true (--active < --periodiccnt)) 1815 if (expect_true (--active < --periodiccnt))
1732 { 1816 {
1733 periodics [active] = periodics [periodiccnt]; 1817 periodics [active] = periodics [periodiccnt];
1734 adjustheap ((WT *)periodics, periodiccnt, active); 1818 adjustheap (periodics, periodiccnt, active);
1735 } 1819 }
1736 } 1820 }
1737 1821
1738 ev_stop (EV_A_ (W)w); 1822 ev_stop (EV_A_ (W)w);
1739} 1823}
… …
1760 if (expect_false (ev_is_active (w))) 1844 if (expect_false (ev_is_active (w)))
1761 return; 1845 return;
1762 1846
1763 assert (("ev_signal_start called with illegal signal number", w->signum > 0)); 1847 assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1764 1848
1849 {
1850#ifndef _WIN32
1851 sigset_t full, prev;
1852 sigfillset (&full);
1853 sigprocmask (SIG_SETMASK, &full, &prev);
1854#endif
1855
1856 array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1857
1858#ifndef _WIN32
1859 sigprocmask (SIG_SETMASK, &prev, 0);
1860#endif
1861 }
1862
1765 ev_start (EV_A_ (W)w, 1); 1863 ev_start (EV_A_ (W)w, 1);
1766 array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1767 wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); 1864 wlist_add (&signals [w->signum - 1].head, (WL)w);
1768 1865
1769 if (!((WL)w)->next) 1866 if (!((WL)w)->next)
1770 { 1867 {
1771#if _WIN32 1868#if _WIN32
1772 signal (w->signum, sighandler); 1869 signal (w->signum, sighandler);
… …
1785{ 1882{
1786 clear_pending (EV_A_ (W)w); 1883 clear_pending (EV_A_ (W)w);
1787 if (expect_false (!ev_is_active (w))) 1884 if (expect_false (!ev_is_active (w)))
1788 return; 1885 return;
1789 1886
1790 wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); 1887 wlist_del (&signals [w->signum - 1].head, (WL)w);
1791 ev_stop (EV_A_ (W)w); 1888 ev_stop (EV_A_ (W)w);
1792 1889
1793 if (!signals [w->signum - 1].head) 1890 if (!signals [w->signum - 1].head)
1794 signal (w->signum, SIG_DFL); 1891 signal (w->signum, SIG_DFL);
1795} 1892}
… …
1802#endif 1899#endif
1803 if (expect_false (ev_is_active (w))) 1900 if (expect_false (ev_is_active (w)))
1804 return; 1901 return;
1805 1902
1806 ev_start (EV_A_ (W)w, 1); 1903 ev_start (EV_A_ (W)w, 1);
1807 wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 1904 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1808} 1905}
1809 1906
1810void 1907void
1811ev_child_stop (EV_P_ ev_child *w) 1908ev_child_stop (EV_P_ ev_child *w)
1812{ 1909{
1813 clear_pending (EV_A_ (W)w); 1910 clear_pending (EV_A_ (W)w);
1814 if (expect_false (!ev_is_active (w))) 1911 if (expect_false (!ev_is_active (w)))
1815 return; 1912 return;
1816 1913
1817 wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 1914 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1818 ev_stop (EV_A_ (W)w); 1915 ev_stop (EV_A_ (W)w);
1819} 1916}
1820 1917
1821#if EV_STAT_ENABLE 1918#if EV_STAT_ENABLE
1822 1919
… …
2164 2261
2165#if EV_EMBED_ENABLE 2262#if EV_EMBED_ENABLE
2166void noinline 2263void noinline
2167ev_embed_sweep (EV_P_ ev_embed *w) 2264ev_embed_sweep (EV_P_ ev_embed *w)
2168{ 2265{
2169 ev_loop (w->loop, EVLOOP_NONBLOCK); 2266 ev_loop (w->other, EVLOOP_NONBLOCK);
2170} 2267}
2171 2268
2172static void 2269static void
2173embed_cb (EV_P_ ev_io *io, int revents) 2270embed_io_cb (EV_P_ ev_io *io, int revents)
2174{ 2271{
2175 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 2272 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
2176 2273
2177 if (ev_cb (w)) 2274 if (ev_cb (w))
2178 ev_feed_event (EV_A_ (W)w, EV_EMBED); 2275 ev_feed_event (EV_A_ (W)w, EV_EMBED);
2179 else 2276 else
2180 ev_embed_sweep (loop, w); 2277 ev_loop (w->other, EVLOOP_NONBLOCK);
2181} 2278}
2279
2280static void
2281embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
2282{
2283 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
2284
2285 {
2286 struct ev_loop *loop = w->other;
2287
2288 while (fdchangecnt)
2289 {
2290 fd_reify (EV_A);
2291 ev_loop (EV_A_ EVLOOP_NONBLOCK);
2292 }
2293 }
2294}
2295
2296#if 0
2297static void
2298embed_idle_cb (EV_P_ ev_idle *idle, int revents)
2299{
2300 ev_idle_stop (EV_A_ idle);
2301}
2302#endif
2182 2303
2183void 2304void
2184ev_embed_start (EV_P_ ev_embed *w) 2305ev_embed_start (EV_P_ ev_embed *w)
2185{ 2306{
2186 if (expect_false (ev_is_active (w))) 2307 if (expect_false (ev_is_active (w)))
2187 return; 2308 return;
2188 2309
2189 { 2310 {
2190 struct ev_loop *loop = w->loop; 2311 struct ev_loop *loop = w->other;
2191 assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 2312 assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2192 ev_io_init (&w->io, embed_cb, backend_fd, EV_READ); 2313 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2193 } 2314 }
2194 2315
2195 ev_set_priority (&w->io, ev_priority (w)); 2316 ev_set_priority (&w->io, ev_priority (w));
2196 ev_io_start (EV_A_ &w->io); 2317 ev_io_start (EV_A_ &w->io);
2197 2318
2319 ev_prepare_init (&w->prepare, embed_prepare_cb);
2320 ev_set_priority (&w->prepare, EV_MINPRI);
2321 ev_prepare_start (EV_A_ &w->prepare);
2322
2323 /*ev_idle_init (&w->idle, e,bed_idle_cb);*/
2324
2198 ev_start (EV_A_ (W)w, 1); 2325 ev_start (EV_A_ (W)w, 1);
2199} 2326}
2200 2327
2201void 2328void
2202ev_embed_stop (EV_P_ ev_embed *w) 2329ev_embed_stop (EV_P_ ev_embed *w)
… …
2204 clear_pending (EV_A_ (W)w); 2331 clear_pending (EV_A_ (W)w);
2205 if (expect_false (!ev_is_active (w))) 2332 if (expect_false (!ev_is_active (w)))
2206 return; 2333 return;
2207 2334
2208 ev_io_stop (EV_A_ &w->io); 2335 ev_io_stop (EV_A_ &w->io);
2336 ev_prepare_stop (EV_A_ &w->prepare);
2209 2337
2210 ev_stop (EV_A_ (W)w); 2338 ev_stop (EV_A_ (W)w);
2211} 2339}
2212#endif 2340#endif
2213 2341
… …
2302 ev_timer_set (&once->to, timeout, 0.); 2430 ev_timer_set (&once->to, timeout, 0.);
2303 ev_timer_start (EV_A_ &once->to); 2431 ev_timer_start (EV_A_ &once->to);
2304 } 2432 }
2305} 2433}
2306 2434
2435#if EV_MULTIPLICITY
2436 #include "ev_wrap.h"
2437#endif
2438
2307#ifdef __cplusplus 2439#ifdef __cplusplus
2308} 2440}
2309#endif 2441#endif
2310 2442

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