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Comparing libev/ev.c (file contents):
Revision 1.133 by root, Fri Nov 23 11:32:22 2007 UTC vs.
Revision 1.139 by root, Sun Nov 25 09:24:37 2007 UTC

… …
202#define ABSPRI(w) ((w)->priority - EV_MINPRI) 202#define ABSPRI(w) ((w)->priority - EV_MINPRI)
203 203
204#define EMPTY0 /* required for microsofts broken pseudo-c compiler */ 204#define EMPTY0 /* required for microsofts broken pseudo-c compiler */
205#define EMPTY2(a,b) /* used to suppress some warnings */ 205#define EMPTY2(a,b) /* used to suppress some warnings */
206 206
207typedef struct ev_watcher *W; 207typedef ev_watcher *W;
208typedef struct ev_watcher_list *WL; 208typedef ev_watcher_list *WL;
209typedef struct ev_watcher_time *WT; 209typedef ev_watcher_time *WT;
210 210
211static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 211static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
212 212
213#ifdef _WIN32 213#ifdef _WIN32
214# include "ev_win32.c" 214# include "ev_win32.c"
… …
416 416
417inline void 417inline void
418fd_event (EV_P_ int fd, int revents) 418fd_event (EV_P_ int fd, int revents)
419{ 419{
420 ANFD *anfd = anfds + fd; 420 ANFD *anfd = anfds + fd;
421 struct ev_io *w; 421 ev_io *w;
422 422
423 for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) 423 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
424 { 424 {
425 int ev = w->events & revents; 425 int ev = w->events & revents;
426 426
427 if (ev) 427 if (ev)
428 ev_feed_event (EV_A_ (W)w, ev); 428 ev_feed_event (EV_A_ (W)w, ev);
… …
444 444
445 for (i = 0; i < fdchangecnt; ++i) 445 for (i = 0; i < fdchangecnt; ++i)
446 { 446 {
447 int fd = fdchanges [i]; 447 int fd = fdchanges [i];
448 ANFD *anfd = anfds + fd; 448 ANFD *anfd = anfds + fd;
449 struct ev_io *w; 449 ev_io *w;
450 450
451 int events = 0; 451 int events = 0;
452 452
453 for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) 453 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
454 events |= w->events; 454 events |= w->events;
455 455
456#if EV_SELECT_IS_WINSOCKET 456#if EV_SELECT_IS_WINSOCKET
457 if (events) 457 if (events)
458 { 458 {
… …
485} 485}
486 486
487static void 487static void
488fd_kill (EV_P_ int fd) 488fd_kill (EV_P_ int fd)
489{ 489{
490 struct ev_io *w; 490 ev_io *w;
491 491
492 while ((w = (struct ev_io *)anfds [fd].head)) 492 while ((w = (ev_io *)anfds [fd].head))
493 { 493 {
494 ev_io_stop (EV_A_ w); 494 ev_io_stop (EV_A_ w);
495 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 495 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
496 } 496 }
497} 497}
… …
608static ANSIG *signals; 608static ANSIG *signals;
609static int signalmax; 609static int signalmax;
610 610
611static int sigpipe [2]; 611static int sigpipe [2];
612static sig_atomic_t volatile gotsig; 612static sig_atomic_t volatile gotsig;
613static struct ev_io sigev; 613static ev_io sigev;
614 614
615static void 615static void
616signals_init (ANSIG *base, int count) 616signals_init (ANSIG *base, int count)
617{ 617{
618 while (count--) 618 while (count--)
… …
661 for (w = signals [signum].head; w; w = w->next) 661 for (w = signals [signum].head; w; w = w->next)
662 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 662 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
663} 663}
664 664
665static void 665static void
666sigcb (EV_P_ struct ev_io *iow, int revents) 666sigcb (EV_P_ ev_io *iow, int revents)
667{ 667{
668 int signum; 668 int signum;
669 669
670 read (sigpipe [0], &revents, 1); 670 read (sigpipe [0], &revents, 1);
671 gotsig = 0; 671 gotsig = 0;
… …
698 ev_unref (EV_A); /* child watcher should not keep loop alive */ 698 ev_unref (EV_A); /* child watcher should not keep loop alive */
699} 699}
700 700
701/*****************************************************************************/ 701/*****************************************************************************/
702 702
703static struct ev_child *childs [PID_HASHSIZE]; 703static ev_child *childs [PID_HASHSIZE];
704 704
705#ifndef _WIN32 705#ifndef _WIN32
706 706
707static struct ev_signal childev; 707static ev_signal childev;
708 708
709#ifndef WCONTINUED 709#ifndef WCONTINUED
710# define WCONTINUED 0 710# define WCONTINUED 0
711#endif 711#endif
712 712
713static void 713static void
714child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status) 714child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)
715{ 715{
716 struct ev_child *w; 716 ev_child *w;
717 717
718 for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next) 718 for (w = (ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
719 if (w->pid == pid || !w->pid) 719 if (w->pid == pid || !w->pid)
720 { 720 {
721 ev_priority (w) = ev_priority (sw); /* need to do it *now* */ 721 ev_priority (w) = ev_priority (sw); /* need to do it *now* */
722 w->rpid = pid; 722 w->rpid = pid;
723 w->rstatus = status; 723 w->rstatus = status;
724 ev_feed_event (EV_A_ (W)w, EV_CHILD); 724 ev_feed_event (EV_A_ (W)w, EV_CHILD);
725 } 725 }
726} 726}
727 727
728static void 728static void
729childcb (EV_P_ struct ev_signal *sw, int revents) 729childcb (EV_P_ ev_signal *sw, int revents)
730{ 730{
731 int pid, status; 731 int pid, status;
732 732
733 if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) 733 if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))
734 { 734 {
… …
816 816
817 return flags; 817 return flags;
818} 818}
819 819
820unsigned int 820unsigned int
821ev_embeddable_backends (void)
822{
823 return EVBACKEND_EPOLL
824 | EVBACKEND_KQUEUE
825 | EVBACKEND_PORT;
826}
827
828unsigned int
821ev_backend (EV_P) 829ev_backend (EV_P)
822{ 830{
823 return backend; 831 return backend;
824} 832}
825 833
… …
1066 { 1074 {
1067 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 1075 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1068 1076
1069 if (expect_true (p->w)) 1077 if (expect_true (p->w))
1070 { 1078 {
1079 assert (("non-pending watcher on pending list", p->w->pending));
1080
1071 p->w->pending = 0; 1081 p->w->pending = 0;
1072 EV_CB_INVOKE (p->w, p->events); 1082 EV_CB_INVOKE (p->w, p->events);
1073 } 1083 }
1074 } 1084 }
1075} 1085}
… …
1077inline void 1087inline void
1078timers_reify (EV_P) 1088timers_reify (EV_P)
1079{ 1089{
1080 while (timercnt && ((WT)timers [0])->at <= mn_now) 1090 while (timercnt && ((WT)timers [0])->at <= mn_now)
1081 { 1091 {
1082 struct ev_timer *w = timers [0]; 1092 ev_timer *w = timers [0];
1083 1093
1084 assert (("inactive timer on timer heap detected", ev_is_active (w))); 1094 assert (("inactive timer on timer heap detected", ev_is_active (w)));
1085 1095
1086 /* first reschedule or stop timer */ 1096 /* first reschedule or stop timer */
1087 if (w->repeat) 1097 if (w->repeat)
… …
1105inline void 1115inline void
1106periodics_reify (EV_P) 1116periodics_reify (EV_P)
1107{ 1117{
1108 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) 1118 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1109 { 1119 {
1110 struct ev_periodic *w = periodics [0]; 1120 ev_periodic *w = periodics [0];
1111 1121
1112 assert (("inactive timer on periodic heap detected", ev_is_active (w))); 1122 assert (("inactive timer on periodic heap detected", ev_is_active (w)));
1113 1123
1114 /* first reschedule or stop timer */ 1124 /* first reschedule or stop timer */
1115 if (w->reschedule_cb) 1125 if (w->reschedule_cb)
… …
1137 int i; 1147 int i;
1138 1148
1139 /* adjust periodics after time jump */ 1149 /* adjust periodics after time jump */
1140 for (i = 0; i < periodiccnt; ++i) 1150 for (i = 0; i < periodiccnt; ++i)
1141 { 1151 {
1142 struct ev_periodic *w = periodics [i]; 1152 ev_periodic *w = periodics [i];
1143 1153
1144 if (w->reschedule_cb) 1154 if (w->reschedule_cb)
1145 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); 1155 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1146 else if (w->interval) 1156 else if (w->interval)
1147 ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; 1157 ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
… …
1181 { 1191 {
1182 if (time_update_monotonic (EV_A)) 1192 if (time_update_monotonic (EV_A))
1183 { 1193 {
1184 ev_tstamp odiff = rtmn_diff; 1194 ev_tstamp odiff = rtmn_diff;
1185 1195
1186 for (i = 4; --i; ) /* loop a few times, before making important decisions */ 1196 /* loop a few times, before making important decisions.
1197 * on the choice of "4": one iteration isn't enough,
1198 * in case we get preempted during the calls to
1199 * ev_time and get_clock. a second call is almost guarenteed
1200 * to succeed in that case, though. and looping a few more times
1201 * doesn't hurt either as we only do this on time-jumps or
1202 * in the unlikely event of getting preempted here.
1203 */
1204 for (i = 4; --i; )
1187 { 1205 {
1188 rtmn_diff = ev_rt_now - mn_now; 1206 rtmn_diff = ev_rt_now - mn_now;
1189 1207
1190 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) 1208 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1191 return; /* all is well */ 1209 return; /* all is well */
… …
1237static int loop_done; 1255static int loop_done;
1238 1256
1239void 1257void
1240ev_loop (EV_P_ int flags) 1258ev_loop (EV_P_ int flags)
1241{ 1259{
1242 double block;
1243 loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; 1260 loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)
1261 ? EVUNLOOP_ONE
1262 : EVUNLOOP_CANCEL;
1244 1263
1245 while (activecnt) 1264 while (activecnt)
1246 { 1265 {
1247 /* queue check watchers (and execute them) */ 1266 /* queue check watchers (and execute them) */
1248 if (expect_false (preparecnt)) 1267 if (expect_false (preparecnt))
… …
1257 1276
1258 /* update fd-related kernel structures */ 1277 /* update fd-related kernel structures */
1259 fd_reify (EV_A); 1278 fd_reify (EV_A);
1260 1279
1261 /* calculate blocking time */ 1280 /* calculate blocking time */
1281 {
1282 double block;
1262 1283
1263 /* we only need this for !monotonic clock or timers, but as we basically 1284 if (flags & EVLOOP_NONBLOCK || idlecnt)
1264 always have timers, we just calculate it always */ 1285 block = 0.; /* do not block at all */
1286 else
1287 {
1288 /* update time to cancel out callback processing overhead */
1265#if EV_USE_MONOTONIC 1289#if EV_USE_MONOTONIC
1266 if (expect_true (have_monotonic)) 1290 if (expect_true (have_monotonic))
1267 time_update_monotonic (EV_A); 1291 time_update_monotonic (EV_A);
1268 else 1292 else
1269#endif 1293#endif
1270 { 1294 {
1271 ev_rt_now = ev_time (); 1295 ev_rt_now = ev_time ();
1272 mn_now = ev_rt_now; 1296 mn_now = ev_rt_now;
1273 } 1297 }
1274 1298
1275 if (flags & EVLOOP_NONBLOCK || idlecnt)
1276 block = 0.;
1277 else
1278 {
1279 block = MAX_BLOCKTIME; 1299 block = MAX_BLOCKTIME;
1280 1300
1281 if (timercnt) 1301 if (timercnt)
1282 { 1302 {
1283 ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; 1303 ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1284 if (block > to) block = to; 1304 if (block > to) block = to;
1285 } 1305 }
1286 1306
1287#if EV_PERIODICS 1307#if EV_PERIODICS
1288 if (periodiccnt) 1308 if (periodiccnt)
1289 { 1309 {
1290 ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; 1310 ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1291 if (block > to) block = to; 1311 if (block > to) block = to;
1292 } 1312 }
1293#endif 1313#endif
1294 1314
1295 if (expect_false (block < 0.)) block = 0.; 1315 if (expect_false (block < 0.)) block = 0.;
1296 } 1316 }
1297 1317
1298 backend_poll (EV_A_ block); 1318 backend_poll (EV_A_ block);
1319 }
1299 1320
1300 /* update ev_rt_now, do magic */ 1321 /* update ev_rt_now, do magic */
1301 time_update (EV_A); 1322 time_update (EV_A);
1302 1323
1303 /* queue pending timers and reschedule them */ 1324 /* queue pending timers and reschedule them */
1304 timers_reify (EV_A); /* relative timers called last */ 1325 timers_reify (EV_A); /* relative timers called last */
1305#if EV_PERIODICS 1326#if EV_PERIODICS
1306 periodics_reify (EV_A); /* absolute timers called first */ 1327 periodics_reify (EV_A); /* absolute timers called first */
1307#endif 1328#endif
1308 1329
1309 /* queue idle watchers unless io or timers are pending */ 1330 /* queue idle watchers unless other events are pending */
1310 if (idlecnt && !any_pending (EV_A)) 1331 if (idlecnt && !any_pending (EV_A))
1311 queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); 1332 queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1312 1333
1313 /* queue check watchers, to be executed first */ 1334 /* queue check watchers, to be executed first */
1314 if (expect_false (checkcnt)) 1335 if (expect_false (checkcnt))
… …
1318 1339
1319 if (expect_false (loop_done)) 1340 if (expect_false (loop_done))
1320 break; 1341 break;
1321 } 1342 }
1322 1343
1323 if (loop_done != 2) 1344 if (loop_done == EVUNLOOP_ONE)
1324 loop_done = 0; 1345 loop_done = EVUNLOOP_CANCEL;
1325} 1346}
1326 1347
1327void 1348void
1328ev_unloop (EV_P_ int how) 1349ev_unloop (EV_P_ int how)
1329{ 1350{
… …
1382} 1403}
1383 1404
1384/*****************************************************************************/ 1405/*****************************************************************************/
1385 1406
1386void 1407void
1387ev_io_start (EV_P_ struct ev_io *w) 1408ev_io_start (EV_P_ ev_io *w)
1388{ 1409{
1389 int fd = w->fd; 1410 int fd = w->fd;
1390 1411
1391 if (expect_false (ev_is_active (w))) 1412 if (expect_false (ev_is_active (w)))
1392 return; 1413 return;
… …
1399 1420
1400 fd_change (EV_A_ fd); 1421 fd_change (EV_A_ fd);
1401} 1422}
1402 1423
1403void 1424void
1404ev_io_stop (EV_P_ struct ev_io *w) 1425ev_io_stop (EV_P_ ev_io *w)
1405{ 1426{
1406 ev_clear_pending (EV_A_ (W)w); 1427 ev_clear_pending (EV_A_ (W)w);
1407 if (expect_false (!ev_is_active (w))) 1428 if (expect_false (!ev_is_active (w)))
1408 return; 1429 return;
1409 1430
… …
1414 1435
1415 fd_change (EV_A_ w->fd); 1436 fd_change (EV_A_ w->fd);
1416} 1437}
1417 1438
1418void 1439void
1419ev_timer_start (EV_P_ struct ev_timer *w) 1440ev_timer_start (EV_P_ ev_timer *w)
1420{ 1441{
1421 if (expect_false (ev_is_active (w))) 1442 if (expect_false (ev_is_active (w)))
1422 return; 1443 return;
1423 1444
1424 ((WT)w)->at += mn_now; 1445 ((WT)w)->at += mn_now;
1425 1446
1426 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 1447 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1427 1448
1428 ev_start (EV_A_ (W)w, ++timercnt); 1449 ev_start (EV_A_ (W)w, ++timercnt);
1429 array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2); 1450 array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2);
1430 timers [timercnt - 1] = w; 1451 timers [timercnt - 1] = w;
1431 upheap ((WT *)timers, timercnt - 1); 1452 upheap ((WT *)timers, timercnt - 1);
1432 1453
1433 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); 1454 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1434} 1455}
1435 1456
1436void 1457void
1437ev_timer_stop (EV_P_ struct ev_timer *w) 1458ev_timer_stop (EV_P_ ev_timer *w)
1438{ 1459{
1439 ev_clear_pending (EV_A_ (W)w); 1460 ev_clear_pending (EV_A_ (W)w);
1440 if (expect_false (!ev_is_active (w))) 1461 if (expect_false (!ev_is_active (w)))
1441 return; 1462 return;
1442 1463
… …
1452 1473
1453 ev_stop (EV_A_ (W)w); 1474 ev_stop (EV_A_ (W)w);
1454} 1475}
1455 1476
1456void 1477void
1457ev_timer_again (EV_P_ struct ev_timer *w) 1478ev_timer_again (EV_P_ ev_timer *w)
1458{ 1479{
1459 if (ev_is_active (w)) 1480 if (ev_is_active (w))
1460 { 1481 {
1461 if (w->repeat) 1482 if (w->repeat)
1462 { 1483 {
… …
1473 } 1494 }
1474} 1495}
1475 1496
1476#if EV_PERIODICS 1497#if EV_PERIODICS
1477void 1498void
1478ev_periodic_start (EV_P_ struct ev_periodic *w) 1499ev_periodic_start (EV_P_ ev_periodic *w)
1479{ 1500{
1480 if (expect_false (ev_is_active (w))) 1501 if (expect_false (ev_is_active (w)))
1481 return; 1502 return;
1482 1503
1483 if (w->reschedule_cb) 1504 if (w->reschedule_cb)
… …
1488 /* this formula differs from the one in periodic_reify because we do not always round up */ 1509 /* this formula differs from the one in periodic_reify because we do not always round up */
1489 ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; 1510 ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
1490 } 1511 }
1491 1512
1492 ev_start (EV_A_ (W)w, ++periodiccnt); 1513 ev_start (EV_A_ (W)w, ++periodiccnt);
1493 array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); 1514 array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1494 periodics [periodiccnt - 1] = w; 1515 periodics [periodiccnt - 1] = w;
1495 upheap ((WT *)periodics, periodiccnt - 1); 1516 upheap ((WT *)periodics, periodiccnt - 1);
1496 1517
1497 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); 1518 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1498} 1519}
1499 1520
1500void 1521void
1501ev_periodic_stop (EV_P_ struct ev_periodic *w) 1522ev_periodic_stop (EV_P_ ev_periodic *w)
1502{ 1523{
1503 ev_clear_pending (EV_A_ (W)w); 1524 ev_clear_pending (EV_A_ (W)w);
1504 if (expect_false (!ev_is_active (w))) 1525 if (expect_false (!ev_is_active (w)))
1505 return; 1526 return;
1506 1527
… …
1514 1535
1515 ev_stop (EV_A_ (W)w); 1536 ev_stop (EV_A_ (W)w);
1516} 1537}
1517 1538
1518void 1539void
1519ev_periodic_again (EV_P_ struct ev_periodic *w) 1540ev_periodic_again (EV_P_ ev_periodic *w)
1520{ 1541{
1521 /* TODO: use adjustheap and recalculation */ 1542 /* TODO: use adjustheap and recalculation */
1522 ev_periodic_stop (EV_A_ w); 1543 ev_periodic_stop (EV_A_ w);
1523 ev_periodic_start (EV_A_ w); 1544 ev_periodic_start (EV_A_ w);
1524} 1545}
1525#endif 1546#endif
1526 1547
1527void 1548void
1528ev_idle_start (EV_P_ struct ev_idle *w) 1549ev_idle_start (EV_P_ ev_idle *w)
1529{ 1550{
1530 if (expect_false (ev_is_active (w))) 1551 if (expect_false (ev_is_active (w)))
1531 return; 1552 return;
1532 1553
1533 ev_start (EV_A_ (W)w, ++idlecnt); 1554 ev_start (EV_A_ (W)w, ++idlecnt);
1534 array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2); 1555 array_needsize (ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1535 idles [idlecnt - 1] = w; 1556 idles [idlecnt - 1] = w;
1536} 1557}
1537 1558
1538void 1559void
1539ev_idle_stop (EV_P_ struct ev_idle *w) 1560ev_idle_stop (EV_P_ ev_idle *w)
1540{ 1561{
1541 ev_clear_pending (EV_A_ (W)w); 1562 ev_clear_pending (EV_A_ (W)w);
1542 if (expect_false (!ev_is_active (w))) 1563 if (expect_false (!ev_is_active (w)))
1543 return; 1564 return;
1544 1565
1566 {
1567 int active = ((W)w)->active;
1545 idles [((W)w)->active - 1] = idles [--idlecnt]; 1568 idles [active - 1] = idles [--idlecnt];
1569 ((W)idles [active - 1])->active = active;
1570 }
1571
1546 ev_stop (EV_A_ (W)w); 1572 ev_stop (EV_A_ (W)w);
1547} 1573}
1548 1574
1549void 1575void
1550ev_prepare_start (EV_P_ struct ev_prepare *w) 1576ev_prepare_start (EV_P_ ev_prepare *w)
1551{ 1577{
1552 if (expect_false (ev_is_active (w))) 1578 if (expect_false (ev_is_active (w)))
1553 return; 1579 return;
1554 1580
1555 ev_start (EV_A_ (W)w, ++preparecnt); 1581 ev_start (EV_A_ (W)w, ++preparecnt);
1556 array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); 1582 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1557 prepares [preparecnt - 1] = w; 1583 prepares [preparecnt - 1] = w;
1558} 1584}
1559 1585
1560void 1586void
1561ev_prepare_stop (EV_P_ struct ev_prepare *w) 1587ev_prepare_stop (EV_P_ ev_prepare *w)
1562{ 1588{
1563 ev_clear_pending (EV_A_ (W)w); 1589 ev_clear_pending (EV_A_ (W)w);
1564 if (expect_false (!ev_is_active (w))) 1590 if (expect_false (!ev_is_active (w)))
1565 return; 1591 return;
1566 1592
1593 {
1594 int active = ((W)w)->active;
1567 prepares [((W)w)->active - 1] = prepares [--preparecnt]; 1595 prepares [active - 1] = prepares [--preparecnt];
1596 ((W)prepares [active - 1])->active = active;
1597 }
1598
1568 ev_stop (EV_A_ (W)w); 1599 ev_stop (EV_A_ (W)w);
1569} 1600}
1570 1601
1571void 1602void
1572ev_check_start (EV_P_ struct ev_check *w) 1603ev_check_start (EV_P_ ev_check *w)
1573{ 1604{
1574 if (expect_false (ev_is_active (w))) 1605 if (expect_false (ev_is_active (w)))
1575 return; 1606 return;
1576 1607
1577 ev_start (EV_A_ (W)w, ++checkcnt); 1608 ev_start (EV_A_ (W)w, ++checkcnt);
1578 array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2); 1609 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
1579 checks [checkcnt - 1] = w; 1610 checks [checkcnt - 1] = w;
1580} 1611}
1581 1612
1582void 1613void
1583ev_check_stop (EV_P_ struct ev_check *w) 1614ev_check_stop (EV_P_ ev_check *w)
1584{ 1615{
1585 ev_clear_pending (EV_A_ (W)w); 1616 ev_clear_pending (EV_A_ (W)w);
1586 if (expect_false (!ev_is_active (w))) 1617 if (expect_false (!ev_is_active (w)))
1587 return; 1618 return;
1588 1619
1620 {
1621 int active = ((W)w)->active;
1589 checks [((W)w)->active - 1] = checks [--checkcnt]; 1622 checks [active - 1] = checks [--checkcnt];
1623 ((W)checks [active - 1])->active = active;
1624 }
1625
1590 ev_stop (EV_A_ (W)w); 1626 ev_stop (EV_A_ (W)w);
1591} 1627}
1592 1628
1593#ifndef SA_RESTART 1629#ifndef SA_RESTART
1594# define SA_RESTART 0 1630# define SA_RESTART 0
1595#endif 1631#endif
1596 1632
1597void 1633void
1598ev_signal_start (EV_P_ struct ev_signal *w) 1634ev_signal_start (EV_P_ ev_signal *w)
1599{ 1635{
1600#if EV_MULTIPLICITY 1636#if EV_MULTIPLICITY
1601 assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 1637 assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1602#endif 1638#endif
1603 if (expect_false (ev_is_active (w))) 1639 if (expect_false (ev_is_active (w)))
… …
1622#endif 1658#endif
1623 } 1659 }
1624} 1660}
1625 1661
1626void 1662void
1627ev_signal_stop (EV_P_ struct ev_signal *w) 1663ev_signal_stop (EV_P_ ev_signal *w)
1628{ 1664{
1629 ev_clear_pending (EV_A_ (W)w); 1665 ev_clear_pending (EV_A_ (W)w);
1630 if (expect_false (!ev_is_active (w))) 1666 if (expect_false (!ev_is_active (w)))
1631 return; 1667 return;
1632 1668
… …
1636 if (!signals [w->signum - 1].head) 1672 if (!signals [w->signum - 1].head)
1637 signal (w->signum, SIG_DFL); 1673 signal (w->signum, SIG_DFL);
1638} 1674}
1639 1675
1640void 1676void
1641ev_child_start (EV_P_ struct ev_child *w) 1677ev_child_start (EV_P_ ev_child *w)
1642{ 1678{
1643#if EV_MULTIPLICITY 1679#if EV_MULTIPLICITY
1644 assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 1680 assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1645#endif 1681#endif
1646 if (expect_false (ev_is_active (w))) 1682 if (expect_false (ev_is_active (w)))
… …
1649 ev_start (EV_A_ (W)w, 1); 1685 ev_start (EV_A_ (W)w, 1);
1650 wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1686 wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1651} 1687}
1652 1688
1653void 1689void
1654ev_child_stop (EV_P_ struct ev_child *w) 1690ev_child_stop (EV_P_ ev_child *w)
1655{ 1691{
1656 ev_clear_pending (EV_A_ (W)w); 1692 ev_clear_pending (EV_A_ (W)w);
1657 if (expect_false (!ev_is_active (w))) 1693 if (expect_false (!ev_is_active (w)))
1658 return; 1694 return;
1659 1695
1660 wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1696 wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1661 ev_stop (EV_A_ (W)w); 1697 ev_stop (EV_A_ (W)w);
1662} 1698}
1663 1699
1700#if EV_MULTIPLICITY
1701void
1702ev_embed_sweep (EV_P_ ev_embed *w)
1703{
1704 ev_loop (w->loop, EVLOOP_NONBLOCK);
1705}
1706
1707static void
1708embed_cb (EV_P_ ev_io *io, int revents)
1709{
1710 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
1711
1712 if (ev_cb (w))
1713 ev_feed_event (EV_A_ (W)w, EV_EMBED);
1714 else
1715 ev_embed_sweep (loop, w);
1716}
1717
1718void
1719ev_embed_start (EV_P_ ev_embed *w)
1720{
1721 if (expect_false (ev_is_active (w)))
1722 return;
1723
1724 {
1725 struct ev_loop *loop = w->loop;
1726 assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
1727 ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);
1728 }
1729
1730 ev_set_priority (&w->io, ev_priority (w));
1731 ev_io_start (EV_A_ &w->io);
1732 ev_start (EV_A_ (W)w, 1);
1733}
1734
1735void
1736ev_embed_stop (EV_P_ ev_embed *w)
1737{
1738 ev_clear_pending (EV_A_ (W)w);
1739 if (expect_false (!ev_is_active (w)))
1740 return;
1741
1742 ev_io_stop (EV_A_ &w->io);
1743 ev_stop (EV_A_ (W)w);
1744}
1745#endif
1746
1664/*****************************************************************************/ 1747/*****************************************************************************/
1665 1748
1666struct ev_once 1749struct ev_once
1667{ 1750{
1668 struct ev_io io; 1751 ev_io io;
1669 struct ev_timer to; 1752 ev_timer to;
1670 void (*cb)(int revents, void *arg); 1753 void (*cb)(int revents, void *arg);
1671 void *arg; 1754 void *arg;
1672}; 1755};
1673 1756
1674static void 1757static void
… …
1683 1766
1684 cb (revents, arg); 1767 cb (revents, arg);
1685} 1768}
1686 1769
1687static void 1770static void
1688once_cb_io (EV_P_ struct ev_io *w, int revents) 1771once_cb_io (EV_P_ ev_io *w, int revents)
1689{ 1772{
1690 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); 1773 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents);
1691} 1774}
1692 1775
1693static void 1776static void
1694once_cb_to (EV_P_ struct ev_timer *w, int revents) 1777once_cb_to (EV_P_ ev_timer *w, int revents)
1695{ 1778{
1696 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); 1779 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents);
1697} 1780}
1698 1781
1699void 1782void

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