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Comparing libev/ev.c (file contents):
Revision 1.166 by root, Sat Dec 8 03:53:36 2007 UTC vs.
Revision 1.180 by root, Tue Dec 11 22:04:55 2007 UTC

… …
216# include <sys/inotify.h> 216# include <sys/inotify.h>
217#endif 217#endif
218 218
219/**/ 219/**/
220 220
221/*
222 * This is used to avoid floating point rounding problems.
223 * It is added to ev_rt_now when scheduling periodics
224 * to ensure progress, time-wise, even when rounding
225 * errors are against us.
226 * This value is good at least till the year 4000.
227 * Better solutions welcome.
228 */
229#define TIME_EPSILON 0.0001220703125 /* 1/8192 */
230
221#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 231#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
222#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 232#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
223/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds */ 233/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */
224 234
225#if __GNUC__ >= 3 235#if __GNUC__ >= 3
226# define expect(expr,value) __builtin_expect ((expr),(value)) 236# define expect(expr,value) __builtin_expect ((expr),(value))
227# define inline_size static inline /* inline for codesize */
228# if EV_MINIMAL
229# define noinline __attribute__ ((noinline)) 237# define noinline __attribute__ ((noinline))
230# define inline_speed static noinline
231# else
232# define noinline
233# define inline_speed static inline
234# endif
235#else 238#else
236# define expect(expr,value) (expr) 239# define expect(expr,value) (expr)
237# define inline_speed static
238# define inline_size static
239# define noinline 240# define noinline
241# if __STDC_VERSION__ < 199901L
242# define inline
243# endif
240#endif 244#endif
241 245
242#define expect_false(expr) expect ((expr) != 0, 0) 246#define expect_false(expr) expect ((expr) != 0, 0)
243#define expect_true(expr) expect ((expr) != 0, 1) 247#define expect_true(expr) expect ((expr) != 0, 1)
248#define inline_size static inline
249
250#if EV_MINIMAL
251# define inline_speed static noinline
252#else
253# define inline_speed static inline
254#endif
244 255
245#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 256#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
246#define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 257#define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
247 258
248#define EMPTY /* required for microsofts broken pseudo-c compiler */ 259#define EMPTY /* required for microsofts broken pseudo-c compiler */
… …
417 } 428 }
418 429
419 return ncur; 430 return ncur;
420} 431}
421 432
422inline_speed void * 433static noinline void *
423array_realloc (int elem, void *base, int *cur, int cnt) 434array_realloc (int elem, void *base, int *cur, int cnt)
424{ 435{
425 *cur = array_nextsize (elem, *cur, cnt); 436 *cur = array_nextsize (elem, *cur, cnt);
426 return ev_realloc (base, elem * *cur); 437 return ev_realloc (base, elem * *cur);
427} 438}
… …
452 463
453void noinline 464void noinline
454ev_feed_event (EV_P_ void *w, int revents) 465ev_feed_event (EV_P_ void *w, int revents)
455{ 466{
456 W w_ = (W)w; 467 W w_ = (W)w;
468 int pri = ABSPRI (w_);
457 469
458 if (expect_false (w_->pending)) 470 if (expect_false (w_->pending))
471 pendings [pri][w_->pending - 1].events |= revents;
472 else
459 { 473 {
474 w_->pending = ++pendingcnt [pri];
475 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
476 pendings [pri][w_->pending - 1].w = w_;
460 pendings [ABSPRI (w_)][w_->pending - 1].events |= revents; 477 pendings [pri][w_->pending - 1].events = revents;
461 return;
462 } 478 }
463
464 w_->pending = ++pendingcnt [ABSPRI (w_)];
465 array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
466 pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
467 pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
468} 479}
469 480
470void inline_size 481void inline_speed
471queue_events (EV_P_ W *events, int eventcnt, int type) 482queue_events (EV_P_ W *events, int eventcnt, int type)
472{ 483{
473 int i; 484 int i;
474 485
475 for (i = 0; i < eventcnt; ++i) 486 for (i = 0; i < eventcnt; ++i)
… …
507} 518}
508 519
509void 520void
510ev_feed_fd_event (EV_P_ int fd, int revents) 521ev_feed_fd_event (EV_P_ int fd, int revents)
511{ 522{
523 if (fd >= 0 && fd < anfdmax)
512 fd_event (EV_A_ fd, revents); 524 fd_event (EV_A_ fd, revents);
513} 525}
514 526
515void inline_size 527void inline_size
516fd_reify (EV_P) 528fd_reify (EV_P)
517{ 529{
… …
626void inline_speed 638void inline_speed
627upheap (WT *heap, int k) 639upheap (WT *heap, int k)
628{ 640{
629 WT w = heap [k]; 641 WT w = heap [k];
630 642
631 while (k && heap [k >> 1]->at > w->at) 643 while (k)
632 { 644 {
645 int p = (k - 1) >> 1;
646
647 if (heap [p]->at <= w->at)
648 break;
649
633 heap [k] = heap [k >> 1]; 650 heap [k] = heap [p];
634 ((W)heap [k])->active = k + 1; 651 ((W)heap [k])->active = k + 1;
635 k >>= 1; 652 k = p;
636 } 653 }
637 654
638 heap [k] = w; 655 heap [k] = w;
639 ((W)heap [k])->active = k + 1; 656 ((W)heap [k])->active = k + 1;
640 657
… …
643void inline_speed 660void inline_speed
644downheap (WT *heap, int N, int k) 661downheap (WT *heap, int N, int k)
645{ 662{
646 WT w = heap [k]; 663 WT w = heap [k];
647 664
648 while (k < (N >> 1)) 665 for (;;)
649 { 666 {
650 int j = k << 1; 667 int c = (k << 1) + 1;
651 668
652 if (j + 1 < N && heap [j]->at > heap [j + 1]->at) 669 if (c >= N)
653 ++j;
654
655 if (w->at <= heap [j]->at)
656 break; 670 break;
657 671
672 c += c + 1 < N && heap [c]->at > heap [c + 1]->at
673 ? 1 : 0;
674
675 if (w->at <= heap [c]->at)
676 break;
677
658 heap [k] = heap [j]; 678 heap [k] = heap [c];
659 ((W)heap [k])->active = k + 1; 679 ((W)heap [k])->active = k + 1;
680
660 k = j; 681 k = c;
661 } 682 }
662 683
663 heap [k] = w; 684 heap [k] = w;
664 ((W)heap [k])->active = k + 1; 685 ((W)heap [k])->active = k + 1;
665} 686}
… …
747 for (signum = signalmax; signum--; ) 768 for (signum = signalmax; signum--; )
748 if (signals [signum].gotsig) 769 if (signals [signum].gotsig)
749 ev_feed_signal_event (EV_A_ signum + 1); 770 ev_feed_signal_event (EV_A_ signum + 1);
750} 771}
751 772
752void inline_size 773void inline_speed
753fd_intern (int fd) 774fd_intern (int fd)
754{ 775{
755#ifdef _WIN32 776#ifdef _WIN32
756 int arg = 1; 777 int arg = 1;
757 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); 778 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
… …
1163 postfork = 1; 1184 postfork = 1;
1164} 1185}
1165 1186
1166/*****************************************************************************/ 1187/*****************************************************************************/
1167 1188
1189void
1190ev_invoke (EV_P_ void *w, int revents)
1191{
1192 EV_CB_INVOKE ((W)w, revents);
1193}
1194
1168void inline_speed 1195void inline_speed
1169call_pending (EV_P) 1196call_pending (EV_P)
1170{ 1197{
1171 int pri; 1198 int pri;
1172 1199
… …
1223 /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ 1250 /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
1224 1251
1225 /* first reschedule or stop timer */ 1252 /* first reschedule or stop timer */
1226 if (w->reschedule_cb) 1253 if (w->reschedule_cb)
1227 { 1254 {
1228 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); 1255 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON);
1229 assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); 1256 assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1230 downheap ((WT *)periodics, periodiccnt, 0); 1257 downheap ((WT *)periodics, periodiccnt, 0);
1231 } 1258 }
1232 else if (w->interval) 1259 else if (w->interval)
1233 { 1260 {
1234 ((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; 1261 ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1262 if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval;
1235 assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); 1263 assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
1236 downheap ((WT *)periodics, periodiccnt, 0); 1264 downheap ((WT *)periodics, periodiccnt, 0);
1237 } 1265 }
1238 else 1266 else
1239 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 1267 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
… …
1253 ev_periodic *w = periodics [i]; 1281 ev_periodic *w = periodics [i];
1254 1282
1255 if (w->reschedule_cb) 1283 if (w->reschedule_cb)
1256 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); 1284 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1257 else if (w->interval) 1285 else if (w->interval)
1258 ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; 1286 ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1259 } 1287 }
1260 1288
1261 /* now rebuild the heap */ 1289 /* now rebuild the heap */
1262 for (i = periodiccnt >> 1; i--; ) 1290 for (i = periodiccnt >> 1; i--; )
1263 downheap ((WT *)periodics, periodiccnt, i); 1291 downheap ((WT *)periodics, periodiccnt, i);
… …
1285 } 1313 }
1286 } 1314 }
1287} 1315}
1288#endif 1316#endif
1289 1317
1290int inline_size 1318void inline_speed
1291time_update_monotonic (EV_P) 1319time_update (EV_P_ ev_tstamp max_block)
1292{ 1320{
1321 int i;
1322
1323#if EV_USE_MONOTONIC
1324 if (expect_true (have_monotonic))
1325 {
1326 ev_tstamp odiff = rtmn_diff;
1327
1293 mn_now = get_clock (); 1328 mn_now = get_clock ();
1294 1329
1330 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
1331 /* interpolate in the meantime */
1295 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) 1332 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1296 { 1333 {
1297 ev_rt_now = rtmn_diff + mn_now; 1334 ev_rt_now = rtmn_diff + mn_now;
1298 return 0; 1335 return;
1299 } 1336 }
1300 else 1337
1301 {
1302 now_floor = mn_now; 1338 now_floor = mn_now;
1303 ev_rt_now = ev_time (); 1339 ev_rt_now = ev_time ();
1304 return 1;
1305 }
1306}
1307 1340
1308void inline_size 1341 /* loop a few times, before making important decisions.
1309time_update (EV_P) 1342 * on the choice of "4": one iteration isn't enough,
1310{ 1343 * in case we get preempted during the calls to
1311 int i; 1344 * ev_time and get_clock. a second call is almost guaranteed
1312 1345 * to succeed in that case, though. and looping a few more times
1313#if EV_USE_MONOTONIC 1346 * doesn't hurt either as we only do this on time-jumps or
1314 if (expect_true (have_monotonic)) 1347 * in the unlikely event of having been preempted here.
1315 { 1348 */
1316 if (time_update_monotonic (EV_A)) 1349 for (i = 4; --i; )
1317 { 1350 {
1318 ev_tstamp odiff = rtmn_diff;
1319
1320 /* loop a few times, before making important decisions.
1321 * on the choice of "4": one iteration isn't enough,
1322 * in case we get preempted during the calls to
1323 * ev_time and get_clock. a second call is almost guaranteed
1324 * to succeed in that case, though. and looping a few more times
1325 * doesn't hurt either as we only do this on time-jumps or
1326 * in the unlikely event of having been preempted here.
1327 */
1328 for (i = 4; --i; )
1329 {
1330 rtmn_diff = ev_rt_now - mn_now; 1351 rtmn_diff = ev_rt_now - mn_now;
1331 1352
1332 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) 1353 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1333 return; /* all is well */ 1354 return; /* all is well */
1334 1355
1335 ev_rt_now = ev_time (); 1356 ev_rt_now = ev_time ();
1336 mn_now = get_clock (); 1357 mn_now = get_clock ();
1337 now_floor = mn_now; 1358 now_floor = mn_now;
1338 } 1359 }
1339 1360
1340# if EV_PERIODIC_ENABLE 1361# if EV_PERIODIC_ENABLE
1341 periodics_reschedule (EV_A); 1362 periodics_reschedule (EV_A);
1342# endif 1363# endif
1343 /* no timer adjustment, as the monotonic clock doesn't jump */ 1364 /* no timer adjustment, as the monotonic clock doesn't jump */
1344 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ 1365 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1345 }
1346 } 1366 }
1347 else 1367 else
1348#endif 1368#endif
1349 { 1369 {
1350 ev_rt_now = ev_time (); 1370 ev_rt_now = ev_time ();
1351 1371
1352 if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) 1372 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
1353 { 1373 {
1354#if EV_PERIODIC_ENABLE 1374#if EV_PERIODIC_ENABLE
1355 periodics_reschedule (EV_A); 1375 periodics_reschedule (EV_A);
1356#endif 1376#endif
1357
1358 /* adjust timers. this is easy, as the offset is the same for all of them */ 1377 /* adjust timers. this is easy, as the offset is the same for all of them */
1359 for (i = 0; i < timercnt; ++i) 1378 for (i = 0; i < timercnt; ++i)
1360 ((WT)timers [i])->at += ev_rt_now - mn_now; 1379 ((WT)timers [i])->at += ev_rt_now - mn_now;
1361 } 1380 }
1362 1381
… …
1406 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 1425 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
1407 call_pending (EV_A); 1426 call_pending (EV_A);
1408 } 1427 }
1409#endif 1428#endif
1410 1429
1411 /* queue check watchers (and execute them) */ 1430 /* queue prepare watchers (and execute them) */
1412 if (expect_false (preparecnt)) 1431 if (expect_false (preparecnt))
1413 { 1432 {
1414 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 1433 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1415 call_pending (EV_A); 1434 call_pending (EV_A);
1416 } 1435 }
… …
1432 if (expect_false (flags & EVLOOP_NONBLOCK || idleall || !activecnt)) 1451 if (expect_false (flags & EVLOOP_NONBLOCK || idleall || !activecnt))
1433 block = 0.; /* do not block at all */ 1452 block = 0.; /* do not block at all */
1434 else 1453 else
1435 { 1454 {
1436 /* update time to cancel out callback processing overhead */ 1455 /* update time to cancel out callback processing overhead */
1437#if EV_USE_MONOTONIC
1438 if (expect_true (have_monotonic))
1439 time_update_monotonic (EV_A); 1456 time_update (EV_A_ 1e100);
1440 else
1441#endif
1442 {
1443 ev_rt_now = ev_time ();
1444 mn_now = ev_rt_now;
1445 }
1446 1457
1447 block = MAX_BLOCKTIME; 1458 block = MAX_BLOCKTIME;
1448 1459
1449 if (timercnt) 1460 if (timercnt)
1450 { 1461 {
… …
1463 if (expect_false (block < 0.)) block = 0.; 1474 if (expect_false (block < 0.)) block = 0.;
1464 } 1475 }
1465 1476
1466 ++loop_count; 1477 ++loop_count;
1467 backend_poll (EV_A_ block); 1478 backend_poll (EV_A_ block);
1479
1480 /* update ev_rt_now, do magic */
1481 time_update (EV_A_ block);
1468 } 1482 }
1469
1470 /* update ev_rt_now, do magic */
1471 time_update (EV_A);
1472 1483
1473 /* queue pending timers and reschedule them */ 1484 /* queue pending timers and reschedule them */
1474 timers_reify (EV_A); /* relative timers called last */ 1485 timers_reify (EV_A); /* relative timers called last */
1475#if EV_PERIODIC_ENABLE 1486#if EV_PERIODIC_ENABLE
1476 periodics_reify (EV_A); /* absolute timers called first */ 1487 periodics_reify (EV_A); /* absolute timers called first */
… …
1532 pendings [ABSPRI (w)][w->pending - 1].w = 0; 1543 pendings [ABSPRI (w)][w->pending - 1].w = 0;
1533 w->pending = 0; 1544 w->pending = 0;
1534 } 1545 }
1535} 1546}
1536 1547
1537void 1548int
1538ev_clear_pending (EV_P_ void *w, int invoke) 1549ev_clear_pending (EV_P_ void *w)
1539{ 1550{
1540 W w_ = (W)w; 1551 W w_ = (W)w;
1541 int pending = w_->pending; 1552 int pending = w_->pending;
1542 1553
1543 if (pending) 1554 if (expect_true (pending))
1544 { 1555 {
1545 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; 1556 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
1546
1547 w_->pending = 0; 1557 w_->pending = 0;
1548 p->w = 0; 1558 p->w = 0;
1549 1559 return p->events;
1550 if (invoke)
1551 EV_CB_INVOKE (w_, p->events);
1552 } 1560 }
1561 else
1562 return 0;
1553} 1563}
1554 1564
1555void inline_size 1565void inline_size
1556pri_adjust (EV_P_ W w) 1566pri_adjust (EV_P_ W w)
1557{ 1567{
… …
1576 w->active = 0; 1586 w->active = 0;
1577} 1587}
1578 1588
1579/*****************************************************************************/ 1589/*****************************************************************************/
1580 1590
1581void 1591void noinline
1582ev_io_start (EV_P_ ev_io *w) 1592ev_io_start (EV_P_ ev_io *w)
1583{ 1593{
1584 int fd = w->fd; 1594 int fd = w->fd;
1585 1595
1586 if (expect_false (ev_is_active (w))) 1596 if (expect_false (ev_is_active (w)))
… …
1593 wlist_add ((WL *)&anfds[fd].head, (WL)w); 1603 wlist_add ((WL *)&anfds[fd].head, (WL)w);
1594 1604
1595 fd_change (EV_A_ fd); 1605 fd_change (EV_A_ fd);
1596} 1606}
1597 1607
1598void 1608void noinline
1599ev_io_stop (EV_P_ ev_io *w) 1609ev_io_stop (EV_P_ ev_io *w)
1600{ 1610{
1601 clear_pending (EV_A_ (W)w); 1611 clear_pending (EV_A_ (W)w);
1602 if (expect_false (!ev_is_active (w))) 1612 if (expect_false (!ev_is_active (w)))
1603 return; 1613 return;
… …
1608 ev_stop (EV_A_ (W)w); 1618 ev_stop (EV_A_ (W)w);
1609 1619
1610 fd_change (EV_A_ w->fd); 1620 fd_change (EV_A_ w->fd);
1611} 1621}
1612 1622
1613void 1623void noinline
1614ev_timer_start (EV_P_ ev_timer *w) 1624ev_timer_start (EV_P_ ev_timer *w)
1615{ 1625{
1616 if (expect_false (ev_is_active (w))) 1626 if (expect_false (ev_is_active (w)))
1617 return; 1627 return;
1618 1628
… …
1626 upheap ((WT *)timers, timercnt - 1); 1636 upheap ((WT *)timers, timercnt - 1);
1627 1637
1628 /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ 1638 /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/
1629} 1639}
1630 1640
1631void 1641void noinline
1632ev_timer_stop (EV_P_ ev_timer *w) 1642ev_timer_stop (EV_P_ ev_timer *w)
1633{ 1643{
1634 clear_pending (EV_A_ (W)w); 1644 clear_pending (EV_A_ (W)w);
1635 if (expect_false (!ev_is_active (w))) 1645 if (expect_false (!ev_is_active (w)))
1636 return; 1646 return;
… …
1650 ((WT)w)->at -= mn_now; 1660 ((WT)w)->at -= mn_now;
1651 1661
1652 ev_stop (EV_A_ (W)w); 1662 ev_stop (EV_A_ (W)w);
1653} 1663}
1654 1664
1655void 1665void noinline
1656ev_timer_again (EV_P_ ev_timer *w) 1666ev_timer_again (EV_P_ ev_timer *w)
1657{ 1667{
1658 if (ev_is_active (w)) 1668 if (ev_is_active (w))
1659 { 1669 {
1660 if (w->repeat) 1670 if (w->repeat)
… …
1671 ev_timer_start (EV_A_ w); 1681 ev_timer_start (EV_A_ w);
1672 } 1682 }
1673} 1683}
1674 1684
1675#if EV_PERIODIC_ENABLE 1685#if EV_PERIODIC_ENABLE
1676void 1686void noinline
1677ev_periodic_start (EV_P_ ev_periodic *w) 1687ev_periodic_start (EV_P_ ev_periodic *w)
1678{ 1688{
1679 if (expect_false (ev_is_active (w))) 1689 if (expect_false (ev_is_active (w)))
1680 return; 1690 return;
1681 1691
… …
1683 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); 1693 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1684 else if (w->interval) 1694 else if (w->interval)
1685 { 1695 {
1686 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); 1696 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1687 /* this formula differs from the one in periodic_reify because we do not always round up */ 1697 /* this formula differs from the one in periodic_reify because we do not always round up */
1688 ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; 1698 ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1689 } 1699 }
1700 else
1701 ((WT)w)->at = w->offset;
1690 1702
1691 ev_start (EV_A_ (W)w, ++periodiccnt); 1703 ev_start (EV_A_ (W)w, ++periodiccnt);
1692 array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); 1704 array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1693 periodics [periodiccnt - 1] = w; 1705 periodics [periodiccnt - 1] = w;
1694 upheap ((WT *)periodics, periodiccnt - 1); 1706 upheap ((WT *)periodics, periodiccnt - 1);
1695 1707
1696 /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ 1708 /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/
1697} 1709}
1698 1710
1699void 1711void noinline
1700ev_periodic_stop (EV_P_ ev_periodic *w) 1712ev_periodic_stop (EV_P_ ev_periodic *w)
1701{ 1713{
1702 clear_pending (EV_A_ (W)w); 1714 clear_pending (EV_A_ (W)w);
1703 if (expect_false (!ev_is_active (w))) 1715 if (expect_false (!ev_is_active (w)))
1704 return; 1716 return;
… …
1716 } 1728 }
1717 1729
1718 ev_stop (EV_A_ (W)w); 1730 ev_stop (EV_A_ (W)w);
1719} 1731}
1720 1732
1721void 1733void noinline
1722ev_periodic_again (EV_P_ ev_periodic *w) 1734ev_periodic_again (EV_P_ ev_periodic *w)
1723{ 1735{
1724 /* TODO: use adjustheap and recalculation */ 1736 /* TODO: use adjustheap and recalculation */
1725 ev_periodic_stop (EV_A_ w); 1737 ev_periodic_stop (EV_A_ w);
1726 ev_periodic_start (EV_A_ w); 1738 ev_periodic_start (EV_A_ w);
… …
1729 1741
1730#ifndef SA_RESTART 1742#ifndef SA_RESTART
1731# define SA_RESTART 0 1743# define SA_RESTART 0
1732#endif 1744#endif
1733 1745
1734void 1746void noinline
1735ev_signal_start (EV_P_ ev_signal *w) 1747ev_signal_start (EV_P_ ev_signal *w)
1736{ 1748{
1737#if EV_MULTIPLICITY 1749#if EV_MULTIPLICITY
1738 assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 1750 assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1739#endif 1751#endif
1740 if (expect_false (ev_is_active (w))) 1752 if (expect_false (ev_is_active (w)))
1741 return; 1753 return;
1742 1754
1743 assert (("ev_signal_start called with illegal signal number", w->signum > 0)); 1755 assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1744 1756
1757 {
1758#ifndef _WIN32
1759 sigset_t full, prev;
1760 sigfillset (&full);
1761 sigprocmask (SIG_SETMASK, &full, &prev);
1762#endif
1763
1764 array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1765
1766#ifndef _WIN32
1767 sigprocmask (SIG_SETMASK, &prev, 0);
1768#endif
1769 }
1770
1745 ev_start (EV_A_ (W)w, 1); 1771 ev_start (EV_A_ (W)w, 1);
1746 array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1747 wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); 1772 wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1748 1773
1749 if (!((WL)w)->next) 1774 if (!((WL)w)->next)
1750 { 1775 {
1751#if _WIN32 1776#if _WIN32
… …
1758 sigaction (w->signum, &sa, 0); 1783 sigaction (w->signum, &sa, 0);
1759#endif 1784#endif
1760 } 1785 }
1761} 1786}
1762 1787
1763void 1788void noinline
1764ev_signal_stop (EV_P_ ev_signal *w) 1789ev_signal_stop (EV_P_ ev_signal *w)
1765{ 1790{
1766 clear_pending (EV_A_ (W)w); 1791 clear_pending (EV_A_ (W)w);
1767 if (expect_false (!ev_is_active (w))) 1792 if (expect_false (!ev_is_active (w)))
1768 return; 1793 return;

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