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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 1.194 by root, Sat Dec 22 07:03:31 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/* sig_atomic_t is used to avoid per-thread variables or locking but still */
286/* giving it a reasonably high chance of working on typical architetcures */
267static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 287static sig_atomic_t have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
268 288
269#ifdef _WIN32 289#ifdef _WIN32
270# include "ev_win32.c" 290# include "ev_win32.c"
271#endif 291#endif
272 292
… …
408{ 428{
409 return ev_rt_now; 429 return ev_rt_now;
410} 430}
411#endif 431#endif
412 432
433void
434ev_sleep (ev_tstamp delay)
435{
436 if (delay > 0.)
437 {
438#if EV_USE_NANOSLEEP
439 struct timespec ts;
440
441 ts.tv_sec = (time_t)delay;
442 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
443
444 nanosleep (&ts, 0);
445#elif defined(_WIN32)
446 Sleep (delay * 1e3);
447#else
448 struct timeval tv;
449
450 tv.tv_sec = (time_t)delay;
451 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
452
453 select (0, 0, 0, 0, &tv);
454#endif
455 }
456}
457
458/*****************************************************************************/
459
413int inline_size 460int inline_size
414array_nextsize (int elem, int cur, int cnt) 461array_nextsize (int elem, int cur, int cnt)
415{ 462{
416 int ncur = cur + 1; 463 int ncur = cur + 1;
417 464
… …
477 pendings [pri][w_->pending - 1].w = w_; 524 pendings [pri][w_->pending - 1].w = w_;
478 pendings [pri][w_->pending - 1].events = revents; 525 pendings [pri][w_->pending - 1].events = revents;
479 } 526 }
480} 527}
481 528
482void inline_size 529void inline_speed
483queue_events (EV_P_ W *events, int eventcnt, int type) 530queue_events (EV_P_ W *events, int eventcnt, int type)
484{ 531{
485 int i; 532 int i;
486 533
487 for (i = 0; i < eventcnt; ++i) 534 for (i = 0; i < eventcnt; ++i)
… …
534 { 581 {
535 int fd = fdchanges [i]; 582 int fd = fdchanges [i];
536 ANFD *anfd = anfds + fd; 583 ANFD *anfd = anfds + fd;
537 ev_io *w; 584 ev_io *w;
538 585
539 int events = 0; 586 unsigned char events = 0;
540 587
541 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 588 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
542 events |= w->events; 589 events |= (unsigned char)w->events;
543 590
544#if EV_SELECT_IS_WINSOCKET 591#if EV_SELECT_IS_WINSOCKET
545 if (events) 592 if (events)
546 { 593 {
547 unsigned long argp; 594 unsigned long argp;
548 anfd->handle = _get_osfhandle (fd); 595 anfd->handle = _get_osfhandle (fd);
549 assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); 596 assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
550 } 597 }
551#endif 598#endif
552 599
600 {
601 unsigned char o_events = anfd->events;
602 unsigned char o_reify = anfd->reify;
603
553 anfd->reify = 0; 604 anfd->reify = 0;
554
555 backend_modify (EV_A_ fd, anfd->events, events);
556 anfd->events = events; 605 anfd->events = events;
606
607 if (o_events != events || o_reify & EV_IOFDSET)
608 backend_modify (EV_A_ fd, o_events, events);
609 }
557 } 610 }
558 611
559 fdchangecnt = 0; 612 fdchangecnt = 0;
560} 613}
561 614
562void inline_size 615void inline_size
563fd_change (EV_P_ int fd) 616fd_change (EV_P_ int fd, int flags)
564{ 617{
565 if (expect_false (anfds [fd].reify)) 618 unsigned char reify = anfds [fd].reify;
566 return;
567
568 anfds [fd].reify = 1; 619 anfds [fd].reify |= flags;
569 620
621 if (expect_true (!reify))
622 {
570 ++fdchangecnt; 623 ++fdchangecnt;
571 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 624 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
572 fdchanges [fdchangecnt - 1] = fd; 625 fdchanges [fdchangecnt - 1] = fd;
626 }
573} 627}
574 628
575void inline_speed 629void inline_speed
576fd_kill (EV_P_ int fd) 630fd_kill (EV_P_ int fd)
577{ 631{
… …
628 682
629 for (fd = 0; fd < anfdmax; ++fd) 683 for (fd = 0; fd < anfdmax; ++fd)
630 if (anfds [fd].events) 684 if (anfds [fd].events)
631 { 685 {
632 anfds [fd].events = 0; 686 anfds [fd].events = 0;
633 fd_change (EV_A_ fd); 687 fd_change (EV_A_ fd, EV_IOFDSET | 1);
634 } 688 }
635} 689}
636 690
637/*****************************************************************************/ 691/*****************************************************************************/
638 692
639void inline_speed 693void inline_speed
640upheap (WT *heap, int k) 694upheap (WT *heap, int k)
641{ 695{
642 WT w = heap [k]; 696 WT w = heap [k];
643 697
644 while (k && heap [k >> 1]->at > w->at) 698 while (k)
645 { 699 {
700 int p = (k - 1) >> 1;
701
702 if (heap [p]->at <= w->at)
703 break;
704
646 heap [k] = heap [k >> 1]; 705 heap [k] = heap [p];
647 ((W)heap [k])->active = k + 1; 706 ((W)heap [k])->active = k + 1;
648 k >>= 1; 707 k = p;
649 } 708 }
650 709
651 heap [k] = w; 710 heap [k] = w;
652 ((W)heap [k])->active = k + 1; 711 ((W)heap [k])->active = k + 1;
653
654} 712}
655 713
656void inline_speed 714void inline_speed
657downheap (WT *heap, int N, int k) 715downheap (WT *heap, int N, int k)
658{ 716{
659 WT w = heap [k]; 717 WT w = heap [k];
660 718
661 while (k < (N >> 1)) 719 for (;;)
662 { 720 {
663 int j = k << 1; 721 int c = (k << 1) + 1;
664 722
665 if (j + 1 < N && heap [j]->at > heap [j + 1]->at) 723 if (c >= N)
666 ++j;
667
668 if (w->at <= heap [j]->at)
669 break; 724 break;
670 725
726 c += c + 1 < N && heap [c]->at > heap [c + 1]->at
727 ? 1 : 0;
728
729 if (w->at <= heap [c]->at)
730 break;
731
671 heap [k] = heap [j]; 732 heap [k] = heap [c];
672 ((W)heap [k])->active = k + 1; 733 ((W)heap [k])->active = k + 1;
734
673 k = j; 735 k = c;
674 } 736 }
675 737
676 heap [k] = w; 738 heap [k] = w;
677 ((W)heap [k])->active = k + 1; 739 ((W)heap [k])->active = k + 1;
678} 740}
… …
785 ev_unref (EV_A); /* child watcher should not keep loop alive */ 847 ev_unref (EV_A); /* child watcher should not keep loop alive */
786} 848}
787 849
788/*****************************************************************************/ 850/*****************************************************************************/
789 851
790static ev_child *childs [EV_PID_HASHSIZE]; 852static WL childs [EV_PID_HASHSIZE];
791 853
792#ifndef _WIN32 854#ifndef _WIN32
793 855
794static ev_signal childev; 856static ev_signal childev;
795 857
… …
910} 972}
911 973
912unsigned int 974unsigned int
913ev_embeddable_backends (void) 975ev_embeddable_backends (void)
914{ 976{
977 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
915 return EVBACKEND_EPOLL 978 return EVBACKEND_KQUEUE
916 | EVBACKEND_KQUEUE
917 | EVBACKEND_PORT; 979 | EVBACKEND_PORT;
918} 980}
919 981
920unsigned int 982unsigned int
921ev_backend (EV_P) 983ev_backend (EV_P)
… …
925 987
926unsigned int 988unsigned int
927ev_loop_count (EV_P) 989ev_loop_count (EV_P)
928{ 990{
929 return loop_count; 991 return loop_count;
992}
993
994void
995ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
996{
997 io_blocktime = interval;
998}
999
1000void
1001ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
1002{
1003 timeout_blocktime = interval;
930} 1004}
931 1005
932static void noinline 1006static void noinline
933loop_init (EV_P_ unsigned int flags) 1007loop_init (EV_P_ unsigned int flags)
934{ 1008{
… …
945 ev_rt_now = ev_time (); 1019 ev_rt_now = ev_time ();
946 mn_now = get_clock (); 1020 mn_now = get_clock ();
947 now_floor = mn_now; 1021 now_floor = mn_now;
948 rtmn_diff = ev_rt_now - mn_now; 1022 rtmn_diff = ev_rt_now - mn_now;
949 1023
1024 io_blocktime = 0.;
1025 timeout_blocktime = 0.;
1026
950 /* pid check not overridable via env */ 1027 /* pid check not overridable via env */
951#ifndef _WIN32 1028#ifndef _WIN32
952 if (flags & EVFLAG_FORKCHECK) 1029 if (flags & EVFLAG_FORKCHECK)
953 curpid = getpid (); 1030 curpid = getpid ();
954#endif 1031#endif
… …
1022 array_free (pending, [i]); 1099 array_free (pending, [i]);
1023#if EV_IDLE_ENABLE 1100#if EV_IDLE_ENABLE
1024 array_free (idle, [i]); 1101 array_free (idle, [i]);
1025#endif 1102#endif
1026 } 1103 }
1104
1105 ev_free (anfds); anfdmax = 0;
1027 1106
1028 /* have to use the microsoft-never-gets-it-right macro */ 1107 /* have to use the microsoft-never-gets-it-right macro */
1029 array_free (fdchange, EMPTY); 1108 array_free (fdchange, EMPTY);
1030 array_free (timer, EMPTY); 1109 array_free (timer, EMPTY);
1031#if EV_PERIODIC_ENABLE 1110#if EV_PERIODIC_ENABLE
1032 array_free (periodic, EMPTY); 1111 array_free (periodic, EMPTY);
1112#endif
1113#if EV_FORK_ENABLE
1114 array_free (fork, EMPTY);
1033#endif 1115#endif
1034 array_free (prepare, EMPTY); 1116 array_free (prepare, EMPTY);
1035 array_free (check, EMPTY); 1117 array_free (check, EMPTY);
1036 1118
1037 backend = 0; 1119 backend = 0;
… …
1207void inline_size 1289void inline_size
1208timers_reify (EV_P) 1290timers_reify (EV_P)
1209{ 1291{
1210 while (timercnt && ((WT)timers [0])->at <= mn_now) 1292 while (timercnt && ((WT)timers [0])->at <= mn_now)
1211 { 1293 {
1212 ev_timer *w = timers [0]; 1294 ev_timer *w = (ev_timer *)timers [0];
1213 1295
1214 /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ 1296 /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
1215 1297
1216 /* first reschedule or stop timer */ 1298 /* first reschedule or stop timer */
1217 if (w->repeat) 1299 if (w->repeat)
… …
1220 1302
1221 ((WT)w)->at += w->repeat; 1303 ((WT)w)->at += w->repeat;
1222 if (((WT)w)->at < mn_now) 1304 if (((WT)w)->at < mn_now)
1223 ((WT)w)->at = mn_now; 1305 ((WT)w)->at = mn_now;
1224 1306
1225 downheap ((WT *)timers, timercnt, 0); 1307 downheap (timers, timercnt, 0);
1226 } 1308 }
1227 else 1309 else
1228 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ 1310 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1229 1311
1230 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); 1312 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
… …
1235void inline_size 1317void inline_size
1236periodics_reify (EV_P) 1318periodics_reify (EV_P)
1237{ 1319{
1238 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) 1320 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1239 { 1321 {
1240 ev_periodic *w = periodics [0]; 1322 ev_periodic *w = (ev_periodic *)periodics [0];
1241 1323
1242 /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ 1324 /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
1243 1325
1244 /* first reschedule or stop timer */ 1326 /* first reschedule or stop timer */
1245 if (w->reschedule_cb) 1327 if (w->reschedule_cb)
1246 { 1328 {
1247 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); 1329 ((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)); 1330 assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1249 downheap ((WT *)periodics, periodiccnt, 0); 1331 downheap (periodics, periodiccnt, 0);
1250 } 1332 }
1251 else if (w->interval) 1333 else if (w->interval)
1252 { 1334 {
1253 ((WT)w)->at = w->offset + floor ((ev_rt_now + TIME_EPSILON - w->offset) / w->interval + 1.) * w->interval; 1335 ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1336 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)); 1337 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); 1338 downheap (periodics, periodiccnt, 0);
1256 } 1339 }
1257 else 1340 else
1258 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 1341 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1259 1342
1260 ev_feed_event (EV_A_ (W)w, EV_PERIODIC); 1343 ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
… …
1267 int i; 1350 int i;
1268 1351
1269 /* adjust periodics after time jump */ 1352 /* adjust periodics after time jump */
1270 for (i = 0; i < periodiccnt; ++i) 1353 for (i = 0; i < periodiccnt; ++i)
1271 { 1354 {
1272 ev_periodic *w = periodics [i]; 1355 ev_periodic *w = (ev_periodic *)periodics [i];
1273 1356
1274 if (w->reschedule_cb) 1357 if (w->reschedule_cb)
1275 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); 1358 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1276 else if (w->interval) 1359 else if (w->interval)
1277 ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 1360 ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1278 } 1361 }
1279 1362
1280 /* now rebuild the heap */ 1363 /* now rebuild the heap */
1281 for (i = periodiccnt >> 1; i--; ) 1364 for (i = periodiccnt >> 1; i--; )
1282 downheap ((WT *)periodics, periodiccnt, i); 1365 downheap (periodics, periodiccnt, i);
1283} 1366}
1284#endif 1367#endif
1285 1368
1286#if EV_IDLE_ENABLE 1369#if EV_IDLE_ENABLE
1287void inline_size 1370void inline_size
… …
1304 } 1387 }
1305 } 1388 }
1306} 1389}
1307#endif 1390#endif
1308 1391
1309int inline_size 1392void inline_speed
1310time_update_monotonic (EV_P) 1393time_update (EV_P_ ev_tstamp max_block)
1311{ 1394{
1395 int i;
1396
1397#if EV_USE_MONOTONIC
1398 if (expect_true (have_monotonic))
1399 {
1400 ev_tstamp odiff = rtmn_diff;
1401
1312 mn_now = get_clock (); 1402 mn_now = get_clock ();
1313 1403
1404 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
1405 /* interpolate in the meantime */
1314 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) 1406 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1315 { 1407 {
1316 ev_rt_now = rtmn_diff + mn_now; 1408 ev_rt_now = rtmn_diff + mn_now;
1317 return 0; 1409 return;
1318 } 1410 }
1319 else 1411
1320 {
1321 now_floor = mn_now; 1412 now_floor = mn_now;
1322 ev_rt_now = ev_time (); 1413 ev_rt_now = ev_time ();
1323 return 1;
1324 }
1325}
1326 1414
1327void inline_size 1415 /* loop a few times, before making important decisions.
1328time_update (EV_P) 1416 * on the choice of "4": one iteration isn't enough,
1329{ 1417 * in case we get preempted during the calls to
1330 int i; 1418 * ev_time and get_clock. a second call is almost guaranteed
1331 1419 * to succeed in that case, though. and looping a few more times
1332#if EV_USE_MONOTONIC 1420 * doesn't hurt either as we only do this on time-jumps or
1333 if (expect_true (have_monotonic)) 1421 * in the unlikely event of having been preempted here.
1334 { 1422 */
1335 if (time_update_monotonic (EV_A)) 1423 for (i = 4; --i; )
1336 { 1424 {
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; 1425 rtmn_diff = ev_rt_now - mn_now;
1350 1426
1351 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) 1427 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1352 return; /* all is well */ 1428 return; /* all is well */
1353 1429
1354 ev_rt_now = ev_time (); 1430 ev_rt_now = ev_time ();
1355 mn_now = get_clock (); 1431 mn_now = get_clock ();
1356 now_floor = mn_now; 1432 now_floor = mn_now;
1357 } 1433 }
1358 1434
1359# if EV_PERIODIC_ENABLE 1435# if EV_PERIODIC_ENABLE
1360 periodics_reschedule (EV_A); 1436 periodics_reschedule (EV_A);
1361# endif 1437# endif
1362 /* no timer adjustment, as the monotonic clock doesn't jump */ 1438 /* no timer adjustment, as the monotonic clock doesn't jump */
1363 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ 1439 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1364 }
1365 } 1440 }
1366 else 1441 else
1367#endif 1442#endif
1368 { 1443 {
1369 ev_rt_now = ev_time (); 1444 ev_rt_now = ev_time ();
1370 1445
1371 if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) 1446 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
1372 { 1447 {
1373#if EV_PERIODIC_ENABLE 1448#if EV_PERIODIC_ENABLE
1374 periodics_reschedule (EV_A); 1449 periodics_reschedule (EV_A);
1375#endif 1450#endif
1376
1377 /* adjust timers. this is easy, as the offset is the same for all of them */ 1451 /* adjust timers. this is easy, as the offset is the same for all of them */
1378 for (i = 0; i < timercnt; ++i) 1452 for (i = 0; i < timercnt; ++i)
1379 ((WT)timers [i])->at += ev_rt_now - mn_now; 1453 ((WT)timers [i])->at += ev_rt_now - mn_now;
1380 } 1454 }
1381 1455
… …
1444 /* update fd-related kernel structures */ 1518 /* update fd-related kernel structures */
1445 fd_reify (EV_A); 1519 fd_reify (EV_A);
1446 1520
1447 /* calculate blocking time */ 1521 /* calculate blocking time */
1448 { 1522 {
1449 ev_tstamp block; 1523 ev_tstamp waittime = 0.;
1524 ev_tstamp sleeptime = 0.;
1450 1525
1451 if (expect_false (flags & EVLOOP_NONBLOCK || idleall || !activecnt)) 1526 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))
1452 block = 0.; /* do not block at all */
1453 else
1454 { 1527 {
1455 /* update time to cancel out callback processing overhead */ 1528 /* 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); 1529 time_update (EV_A_ 1e100);
1459 else
1460#endif
1461 {
1462 ev_rt_now = ev_time ();
1463 mn_now = ev_rt_now;
1464 }
1465 1530
1466 block = MAX_BLOCKTIME; 1531 waittime = MAX_BLOCKTIME;
1467 1532
1468 if (timercnt) 1533 if (timercnt)
1469 { 1534 {
1470 ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; 1535 ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1471 if (block > to) block = to; 1536 if (waittime > to) waittime = to;
1472 } 1537 }
1473 1538
1474#if EV_PERIODIC_ENABLE 1539#if EV_PERIODIC_ENABLE
1475 if (periodiccnt) 1540 if (periodiccnt)
1476 { 1541 {
1477 ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; 1542 ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1478 if (block > to) block = to; 1543 if (waittime > to) waittime = to;
1479 } 1544 }
1480#endif 1545#endif
1481 1546
1482 if (expect_false (block < 0.)) block = 0.; 1547 if (expect_false (waittime < timeout_blocktime))
1548 waittime = timeout_blocktime;
1549
1550 sleeptime = waittime - backend_fudge;
1551
1552 if (expect_true (sleeptime > io_blocktime))
1553 sleeptime = io_blocktime;
1554
1555 if (sleeptime)
1556 {
1557 ev_sleep (sleeptime);
1558 waittime -= sleeptime;
1559 }
1483 } 1560 }
1484 1561
1485 ++loop_count; 1562 ++loop_count;
1486 backend_poll (EV_A_ block); 1563 backend_poll (EV_A_ waittime);
1564
1565 /* update ev_rt_now, do magic */
1566 time_update (EV_A_ waittime + sleeptime);
1487 } 1567 }
1488
1489 /* update ev_rt_now, do magic */
1490 time_update (EV_A);
1491 1568
1492 /* queue pending timers and reschedule them */ 1569 /* queue pending timers and reschedule them */
1493 timers_reify (EV_A); /* relative timers called last */ 1570 timers_reify (EV_A); /* relative timers called last */
1494#if EV_PERIODIC_ENABLE 1571#if EV_PERIODIC_ENABLE
1495 periodics_reify (EV_A); /* absolute timers called first */ 1572 periodics_reify (EV_A); /* absolute timers called first */
… …
1606 1683
1607 assert (("ev_io_start called with negative fd", fd >= 0)); 1684 assert (("ev_io_start called with negative fd", fd >= 0));
1608 1685
1609 ev_start (EV_A_ (W)w, 1); 1686 ev_start (EV_A_ (W)w, 1);
1610 array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); 1687 array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1611 wlist_add ((WL *)&anfds[fd].head, (WL)w); 1688 wlist_add (&anfds[fd].head, (WL)w);
1612 1689
1613 fd_change (EV_A_ fd); 1690 fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1);
1691 w->events &= ~EV_IOFDSET;
1614} 1692}
1615 1693
1616void noinline 1694void noinline
1617ev_io_stop (EV_P_ ev_io *w) 1695ev_io_stop (EV_P_ ev_io *w)
1618{ 1696{
… …
1620 if (expect_false (!ev_is_active (w))) 1698 if (expect_false (!ev_is_active (w)))
1621 return; 1699 return;
1622 1700
1623 assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); 1701 assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1624 1702
1625 wlist_del ((WL *)&anfds[w->fd].head, (WL)w); 1703 wlist_del (&anfds[w->fd].head, (WL)w);
1626 ev_stop (EV_A_ (W)w); 1704 ev_stop (EV_A_ (W)w);
1627 1705
1628 fd_change (EV_A_ w->fd); 1706 fd_change (EV_A_ w->fd, 1);
1629} 1707}
1630 1708
1631void noinline 1709void noinline
1632ev_timer_start (EV_P_ ev_timer *w) 1710ev_timer_start (EV_P_ ev_timer *w)
1633{ 1711{
… …
1637 ((WT)w)->at += mn_now; 1715 ((WT)w)->at += mn_now;
1638 1716
1639 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 1717 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1640 1718
1641 ev_start (EV_A_ (W)w, ++timercnt); 1719 ev_start (EV_A_ (W)w, ++timercnt);
1642 array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2); 1720 array_needsize (WT, timers, timermax, timercnt, EMPTY2);
1643 timers [timercnt - 1] = w; 1721 timers [timercnt - 1] = (WT)w;
1644 upheap ((WT *)timers, timercnt - 1); 1722 upheap (timers, timercnt - 1);
1645 1723
1646 /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ 1724 /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/
1647} 1725}
1648 1726
1649void noinline 1727void noinline
… …
1651{ 1729{
1652 clear_pending (EV_A_ (W)w); 1730 clear_pending (EV_A_ (W)w);
1653 if (expect_false (!ev_is_active (w))) 1731 if (expect_false (!ev_is_active (w)))
1654 return; 1732 return;
1655 1733
1656 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); 1734 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w));
1657 1735
1658 { 1736 {
1659 int active = ((W)w)->active; 1737 int active = ((W)w)->active;
1660 1738
1661 if (expect_true (--active < --timercnt)) 1739 if (expect_true (--active < --timercnt))
1662 { 1740 {
1663 timers [active] = timers [timercnt]; 1741 timers [active] = timers [timercnt];
1664 adjustheap ((WT *)timers, timercnt, active); 1742 adjustheap (timers, timercnt, active);
1665 } 1743 }
1666 } 1744 }
1667 1745
1668 ((WT)w)->at -= mn_now; 1746 ((WT)w)->at -= mn_now;
1669 1747
… …
1676 if (ev_is_active (w)) 1754 if (ev_is_active (w))
1677 { 1755 {
1678 if (w->repeat) 1756 if (w->repeat)
1679 { 1757 {
1680 ((WT)w)->at = mn_now + w->repeat; 1758 ((WT)w)->at = mn_now + w->repeat;
1681 adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); 1759 adjustheap (timers, timercnt, ((W)w)->active - 1);
1682 } 1760 }
1683 else 1761 else
1684 ev_timer_stop (EV_A_ w); 1762 ev_timer_stop (EV_A_ w);
1685 } 1763 }
1686 else if (w->repeat) 1764 else if (w->repeat)
… …
1707 } 1785 }
1708 else 1786 else
1709 ((WT)w)->at = w->offset; 1787 ((WT)w)->at = w->offset;
1710 1788
1711 ev_start (EV_A_ (W)w, ++periodiccnt); 1789 ev_start (EV_A_ (W)w, ++periodiccnt);
1712 array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); 1790 array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2);
1713 periodics [periodiccnt - 1] = w; 1791 periodics [periodiccnt - 1] = (WT)w;
1714 upheap ((WT *)periodics, periodiccnt - 1); 1792 upheap (periodics, periodiccnt - 1);
1715 1793
1716 /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ 1794 /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/
1717} 1795}
1718 1796
1719void noinline 1797void noinline
… …
1721{ 1799{
1722 clear_pending (EV_A_ (W)w); 1800 clear_pending (EV_A_ (W)w);
1723 if (expect_false (!ev_is_active (w))) 1801 if (expect_false (!ev_is_active (w)))
1724 return; 1802 return;
1725 1803
1726 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); 1804 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w));
1727 1805
1728 { 1806 {
1729 int active = ((W)w)->active; 1807 int active = ((W)w)->active;
1730 1808
1731 if (expect_true (--active < --periodiccnt)) 1809 if (expect_true (--active < --periodiccnt))
1732 { 1810 {
1733 periodics [active] = periodics [periodiccnt]; 1811 periodics [active] = periodics [periodiccnt];
1734 adjustheap ((WT *)periodics, periodiccnt, active); 1812 adjustheap (periodics, periodiccnt, active);
1735 } 1813 }
1736 } 1814 }
1737 1815
1738 ev_stop (EV_A_ (W)w); 1816 ev_stop (EV_A_ (W)w);
1739} 1817}
… …
1760 if (expect_false (ev_is_active (w))) 1838 if (expect_false (ev_is_active (w)))
1761 return; 1839 return;
1762 1840
1763 assert (("ev_signal_start called with illegal signal number", w->signum > 0)); 1841 assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1764 1842
1843 {
1844#ifndef _WIN32
1845 sigset_t full, prev;
1846 sigfillset (&full);
1847 sigprocmask (SIG_SETMASK, &full, &prev);
1848#endif
1849
1850 array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1851
1852#ifndef _WIN32
1853 sigprocmask (SIG_SETMASK, &prev, 0);
1854#endif
1855 }
1856
1765 ev_start (EV_A_ (W)w, 1); 1857 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); 1858 wlist_add (&signals [w->signum - 1].head, (WL)w);
1768 1859
1769 if (!((WL)w)->next) 1860 if (!((WL)w)->next)
1770 { 1861 {
1771#if _WIN32 1862#if _WIN32
1772 signal (w->signum, sighandler); 1863 signal (w->signum, sighandler);
… …
1785{ 1876{
1786 clear_pending (EV_A_ (W)w); 1877 clear_pending (EV_A_ (W)w);
1787 if (expect_false (!ev_is_active (w))) 1878 if (expect_false (!ev_is_active (w)))
1788 return; 1879 return;
1789 1880
1790 wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); 1881 wlist_del (&signals [w->signum - 1].head, (WL)w);
1791 ev_stop (EV_A_ (W)w); 1882 ev_stop (EV_A_ (W)w);
1792 1883
1793 if (!signals [w->signum - 1].head) 1884 if (!signals [w->signum - 1].head)
1794 signal (w->signum, SIG_DFL); 1885 signal (w->signum, SIG_DFL);
1795} 1886}
… …
1802#endif 1893#endif
1803 if (expect_false (ev_is_active (w))) 1894 if (expect_false (ev_is_active (w)))
1804 return; 1895 return;
1805 1896
1806 ev_start (EV_A_ (W)w, 1); 1897 ev_start (EV_A_ (W)w, 1);
1807 wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 1898 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1808} 1899}
1809 1900
1810void 1901void
1811ev_child_stop (EV_P_ ev_child *w) 1902ev_child_stop (EV_P_ ev_child *w)
1812{ 1903{
1813 clear_pending (EV_A_ (W)w); 1904 clear_pending (EV_A_ (W)w);
1814 if (expect_false (!ev_is_active (w))) 1905 if (expect_false (!ev_is_active (w)))
1815 return; 1906 return;
1816 1907
1817 wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 1908 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1818 ev_stop (EV_A_ (W)w); 1909 ev_stop (EV_A_ (W)w);
1819} 1910}
1820 1911
1821#if EV_STAT_ENABLE 1912#if EV_STAT_ENABLE
1822 1913
… …
2164 2255
2165#if EV_EMBED_ENABLE 2256#if EV_EMBED_ENABLE
2166void noinline 2257void noinline
2167ev_embed_sweep (EV_P_ ev_embed *w) 2258ev_embed_sweep (EV_P_ ev_embed *w)
2168{ 2259{
2169 ev_loop (w->loop, EVLOOP_NONBLOCK); 2260 ev_loop (w->other, EVLOOP_NONBLOCK);
2170} 2261}
2171 2262
2172static void 2263static void
2173embed_cb (EV_P_ ev_io *io, int revents) 2264embed_io_cb (EV_P_ ev_io *io, int revents)
2174{ 2265{
2175 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 2266 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
2176 2267
2177 if (ev_cb (w)) 2268 if (ev_cb (w))
2178 ev_feed_event (EV_A_ (W)w, EV_EMBED); 2269 ev_feed_event (EV_A_ (W)w, EV_EMBED);
2179 else 2270 else
2180 ev_embed_sweep (loop, w); 2271 ev_embed_sweep (loop, w);
2181} 2272}
2182 2273
2274static void
2275embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
2276{
2277 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
2278
2279 fd_reify (w->other);
2280}
2281
2183void 2282void
2184ev_embed_start (EV_P_ ev_embed *w) 2283ev_embed_start (EV_P_ ev_embed *w)
2185{ 2284{
2186 if (expect_false (ev_is_active (w))) 2285 if (expect_false (ev_is_active (w)))
2187 return; 2286 return;
2188 2287
2189 { 2288 {
2190 struct ev_loop *loop = w->loop; 2289 struct ev_loop *loop = w->other;
2191 assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 2290 assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2192 ev_io_init (&w->io, embed_cb, backend_fd, EV_READ); 2291 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2193 } 2292 }
2194 2293
2195 ev_set_priority (&w->io, ev_priority (w)); 2294 ev_set_priority (&w->io, ev_priority (w));
2196 ev_io_start (EV_A_ &w->io); 2295 ev_io_start (EV_A_ &w->io);
2197 2296
2297 ev_prepare_init (&w->prepare, embed_prepare_cb);
2298 ev_set_priority (&w->prepare, EV_MINPRI);
2299 ev_prepare_start (EV_A_ &w->prepare);
2300
2198 ev_start (EV_A_ (W)w, 1); 2301 ev_start (EV_A_ (W)w, 1);
2199} 2302}
2200 2303
2201void 2304void
2202ev_embed_stop (EV_P_ ev_embed *w) 2305ev_embed_stop (EV_P_ ev_embed *w)
… …
2204 clear_pending (EV_A_ (W)w); 2307 clear_pending (EV_A_ (W)w);
2205 if (expect_false (!ev_is_active (w))) 2308 if (expect_false (!ev_is_active (w)))
2206 return; 2309 return;
2207 2310
2208 ev_io_stop (EV_A_ &w->io); 2311 ev_io_stop (EV_A_ &w->io);
2312 ev_prepare_stop (EV_A_ &w->prepare);
2209 2313
2210 ev_stop (EV_A_ (W)w); 2314 ev_stop (EV_A_ (W)w);
2211} 2315}
2212#endif 2316#endif
2213 2317
… …
2302 ev_timer_set (&once->to, timeout, 0.); 2406 ev_timer_set (&once->to, timeout, 0.);
2303 ev_timer_start (EV_A_ &once->to); 2407 ev_timer_start (EV_A_ &once->to);
2304 } 2408 }
2305} 2409}
2306 2410
2411#if EV_MULTIPLICITY
2412 #include "ev_wrap.h"
2413#endif
2414
2307#ifdef __cplusplus 2415#ifdef __cplusplus
2308} 2416}
2309#endif 2417#endif
2310 2418

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