… | |
… | |
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 | * and intervals up to 20 years. |
|
|
228 | * Better solutions welcome. |
|
|
229 | */ |
|
|
230 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
|
|
231 | |
221 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
232 | #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) */ |
233 | #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 */ |
234 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
224 | |
235 | |
225 | #if __GNUC__ >= 3 |
236 | #if __GNUC__ >= 3 |
226 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
237 | # 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)) |
238 | # 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 |
239 | #else |
236 | # define expect(expr,value) (expr) |
240 | # define expect(expr,value) (expr) |
237 | # define inline_speed static |
|
|
238 | # define inline_size static |
|
|
239 | # define noinline |
241 | # define noinline |
|
|
242 | # if __STDC_VERSION__ < 199901L |
|
|
243 | # define inline |
|
|
244 | # endif |
240 | #endif |
245 | #endif |
241 | |
246 | |
242 | #define expect_false(expr) expect ((expr) != 0, 0) |
247 | #define expect_false(expr) expect ((expr) != 0, 0) |
243 | #define expect_true(expr) expect ((expr) != 0, 1) |
248 | #define expect_true(expr) expect ((expr) != 0, 1) |
|
|
249 | #define inline_size static inline |
|
|
250 | |
|
|
251 | #if EV_MINIMAL |
|
|
252 | # define inline_speed static noinline |
|
|
253 | #else |
|
|
254 | # define inline_speed static inline |
|
|
255 | #endif |
244 | |
256 | |
245 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
257 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
246 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
258 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
247 | |
259 | |
248 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
260 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
… | |
… | |
417 | } |
429 | } |
418 | |
430 | |
419 | return ncur; |
431 | return ncur; |
420 | } |
432 | } |
421 | |
433 | |
422 | inline_speed void * |
434 | static noinline void * |
423 | array_realloc (int elem, void *base, int *cur, int cnt) |
435 | array_realloc (int elem, void *base, int *cur, int cnt) |
424 | { |
436 | { |
425 | *cur = array_nextsize (elem, *cur, cnt); |
437 | *cur = array_nextsize (elem, *cur, cnt); |
426 | return ev_realloc (base, elem * *cur); |
438 | return ev_realloc (base, elem * *cur); |
427 | } |
439 | } |
… | |
… | |
452 | |
464 | |
453 | void noinline |
465 | void noinline |
454 | ev_feed_event (EV_P_ void *w, int revents) |
466 | ev_feed_event (EV_P_ void *w, int revents) |
455 | { |
467 | { |
456 | W w_ = (W)w; |
468 | W w_ = (W)w; |
|
|
469 | int pri = ABSPRI (w_); |
457 | |
470 | |
458 | if (expect_false (w_->pending)) |
471 | if (expect_false (w_->pending)) |
|
|
472 | pendings [pri][w_->pending - 1].events |= revents; |
|
|
473 | else |
459 | { |
474 | { |
|
|
475 | w_->pending = ++pendingcnt [pri]; |
|
|
476 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
|
|
477 | pendings [pri][w_->pending - 1].w = w_; |
460 | pendings [ABSPRI (w_)][w_->pending - 1].events |= revents; |
478 | pendings [pri][w_->pending - 1].events = revents; |
461 | return; |
|
|
462 | } |
479 | } |
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 | } |
480 | } |
469 | |
481 | |
470 | void inline_size |
482 | void inline_size |
471 | queue_events (EV_P_ W *events, int eventcnt, int type) |
483 | queue_events (EV_P_ W *events, int eventcnt, int type) |
472 | { |
484 | { |
… | |
… | |
507 | } |
519 | } |
508 | |
520 | |
509 | void |
521 | void |
510 | ev_feed_fd_event (EV_P_ int fd, int revents) |
522 | ev_feed_fd_event (EV_P_ int fd, int revents) |
511 | { |
523 | { |
|
|
524 | if (fd >= 0 && fd < anfdmax) |
512 | fd_event (EV_A_ fd, revents); |
525 | fd_event (EV_A_ fd, revents); |
513 | } |
526 | } |
514 | |
527 | |
515 | void inline_size |
528 | void inline_size |
516 | fd_reify (EV_P) |
529 | fd_reify (EV_P) |
517 | { |
530 | { |
… | |
… | |
747 | for (signum = signalmax; signum--; ) |
760 | for (signum = signalmax; signum--; ) |
748 | if (signals [signum].gotsig) |
761 | if (signals [signum].gotsig) |
749 | ev_feed_signal_event (EV_A_ signum + 1); |
762 | ev_feed_signal_event (EV_A_ signum + 1); |
750 | } |
763 | } |
751 | |
764 | |
752 | void inline_size |
765 | void inline_speed |
753 | fd_intern (int fd) |
766 | fd_intern (int fd) |
754 | { |
767 | { |
755 | #ifdef _WIN32 |
768 | #ifdef _WIN32 |
756 | int arg = 1; |
769 | int arg = 1; |
757 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
770 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
… | |
… | |
1163 | postfork = 1; |
1176 | postfork = 1; |
1164 | } |
1177 | } |
1165 | |
1178 | |
1166 | /*****************************************************************************/ |
1179 | /*****************************************************************************/ |
1167 | |
1180 | |
|
|
1181 | void |
|
|
1182 | ev_invoke (EV_P_ void *w, int revents) |
|
|
1183 | { |
|
|
1184 | EV_CB_INVOKE ((W)w, revents); |
|
|
1185 | } |
|
|
1186 | |
1168 | void inline_speed |
1187 | void inline_speed |
1169 | call_pending (EV_P) |
1188 | call_pending (EV_P) |
1170 | { |
1189 | { |
1171 | int pri; |
1190 | int pri; |
1172 | |
1191 | |
… | |
… | |
1223 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
1242 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
1224 | |
1243 | |
1225 | /* first reschedule or stop timer */ |
1244 | /* first reschedule or stop timer */ |
1226 | if (w->reschedule_cb) |
1245 | if (w->reschedule_cb) |
1227 | { |
1246 | { |
1228 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); |
1247 | ((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)); |
1248 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
1230 | downheap ((WT *)periodics, periodiccnt, 0); |
1249 | downheap ((WT *)periodics, periodiccnt, 0); |
1231 | } |
1250 | } |
1232 | else if (w->interval) |
1251 | else if (w->interval) |
1233 | { |
1252 | { |
1234 | ((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
1253 | ((WT)w)->at = w->offset + floor ((ev_rt_now + TIME_EPSILON - w->offset) / w->interval + 1.) * w->interval; |
1235 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
1254 | 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); |
1255 | downheap ((WT *)periodics, periodiccnt, 0); |
1237 | } |
1256 | } |
1238 | else |
1257 | else |
1239 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1258 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
… | |
… | |
1253 | ev_periodic *w = periodics [i]; |
1272 | ev_periodic *w = periodics [i]; |
1254 | |
1273 | |
1255 | if (w->reschedule_cb) |
1274 | if (w->reschedule_cb) |
1256 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1275 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1257 | else if (w->interval) |
1276 | else if (w->interval) |
1258 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1277 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1259 | } |
1278 | } |
1260 | |
1279 | |
1261 | /* now rebuild the heap */ |
1280 | /* now rebuild the heap */ |
1262 | for (i = periodiccnt >> 1; i--; ) |
1281 | for (i = periodiccnt >> 1; i--; ) |
1263 | downheap ((WT *)periodics, periodiccnt, i); |
1282 | downheap ((WT *)periodics, periodiccnt, i); |
… | |
… | |
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 | } |
… | |
… | |
1532 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1551 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1533 | w->pending = 0; |
1552 | w->pending = 0; |
1534 | } |
1553 | } |
1535 | } |
1554 | } |
1536 | |
1555 | |
1537 | void |
1556 | int |
1538 | ev_clear_pending (EV_P_ void *w, int invoke) |
1557 | ev_clear_pending (EV_P_ void *w) |
1539 | { |
1558 | { |
1540 | W w_ = (W)w; |
1559 | W w_ = (W)w; |
1541 | int pending = w_->pending; |
1560 | int pending = w_->pending; |
1542 | |
1561 | |
1543 | if (pending) |
1562 | if (expect_true (pending)) |
1544 | { |
1563 | { |
1545 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
1564 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
1546 | |
|
|
1547 | w_->pending = 0; |
1565 | w_->pending = 0; |
1548 | p->w = 0; |
1566 | p->w = 0; |
1549 | |
1567 | return p->events; |
1550 | if (invoke) |
|
|
1551 | EV_CB_INVOKE (w_, p->events); |
|
|
1552 | } |
1568 | } |
|
|
1569 | else |
|
|
1570 | return 0; |
1553 | } |
1571 | } |
1554 | |
1572 | |
1555 | void inline_size |
1573 | void inline_size |
1556 | pri_adjust (EV_P_ W w) |
1574 | pri_adjust (EV_P_ W w) |
1557 | { |
1575 | { |
… | |
… | |
1576 | w->active = 0; |
1594 | w->active = 0; |
1577 | } |
1595 | } |
1578 | |
1596 | |
1579 | /*****************************************************************************/ |
1597 | /*****************************************************************************/ |
1580 | |
1598 | |
1581 | void |
1599 | void noinline |
1582 | ev_io_start (EV_P_ ev_io *w) |
1600 | ev_io_start (EV_P_ ev_io *w) |
1583 | { |
1601 | { |
1584 | int fd = w->fd; |
1602 | int fd = w->fd; |
1585 | |
1603 | |
1586 | if (expect_false (ev_is_active (w))) |
1604 | if (expect_false (ev_is_active (w))) |
… | |
… | |
1593 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1611 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1594 | |
1612 | |
1595 | fd_change (EV_A_ fd); |
1613 | fd_change (EV_A_ fd); |
1596 | } |
1614 | } |
1597 | |
1615 | |
1598 | void |
1616 | void noinline |
1599 | ev_io_stop (EV_P_ ev_io *w) |
1617 | ev_io_stop (EV_P_ ev_io *w) |
1600 | { |
1618 | { |
1601 | clear_pending (EV_A_ (W)w); |
1619 | clear_pending (EV_A_ (W)w); |
1602 | if (expect_false (!ev_is_active (w))) |
1620 | if (expect_false (!ev_is_active (w))) |
1603 | return; |
1621 | return; |
… | |
… | |
1608 | ev_stop (EV_A_ (W)w); |
1626 | ev_stop (EV_A_ (W)w); |
1609 | |
1627 | |
1610 | fd_change (EV_A_ w->fd); |
1628 | fd_change (EV_A_ w->fd); |
1611 | } |
1629 | } |
1612 | |
1630 | |
1613 | void |
1631 | void noinline |
1614 | ev_timer_start (EV_P_ ev_timer *w) |
1632 | ev_timer_start (EV_P_ ev_timer *w) |
1615 | { |
1633 | { |
1616 | if (expect_false (ev_is_active (w))) |
1634 | if (expect_false (ev_is_active (w))) |
1617 | return; |
1635 | return; |
1618 | |
1636 | |
… | |
… | |
1626 | upheap ((WT *)timers, timercnt - 1); |
1644 | upheap ((WT *)timers, timercnt - 1); |
1627 | |
1645 | |
1628 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
1646 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
1629 | } |
1647 | } |
1630 | |
1648 | |
1631 | void |
1649 | void noinline |
1632 | ev_timer_stop (EV_P_ ev_timer *w) |
1650 | ev_timer_stop (EV_P_ ev_timer *w) |
1633 | { |
1651 | { |
1634 | clear_pending (EV_A_ (W)w); |
1652 | clear_pending (EV_A_ (W)w); |
1635 | if (expect_false (!ev_is_active (w))) |
1653 | if (expect_false (!ev_is_active (w))) |
1636 | return; |
1654 | return; |
… | |
… | |
1650 | ((WT)w)->at -= mn_now; |
1668 | ((WT)w)->at -= mn_now; |
1651 | |
1669 | |
1652 | ev_stop (EV_A_ (W)w); |
1670 | ev_stop (EV_A_ (W)w); |
1653 | } |
1671 | } |
1654 | |
1672 | |
1655 | void |
1673 | void noinline |
1656 | ev_timer_again (EV_P_ ev_timer *w) |
1674 | ev_timer_again (EV_P_ ev_timer *w) |
1657 | { |
1675 | { |
1658 | if (ev_is_active (w)) |
1676 | if (ev_is_active (w)) |
1659 | { |
1677 | { |
1660 | if (w->repeat) |
1678 | if (w->repeat) |
… | |
… | |
1671 | ev_timer_start (EV_A_ w); |
1689 | ev_timer_start (EV_A_ w); |
1672 | } |
1690 | } |
1673 | } |
1691 | } |
1674 | |
1692 | |
1675 | #if EV_PERIODIC_ENABLE |
1693 | #if EV_PERIODIC_ENABLE |
1676 | void |
1694 | void noinline |
1677 | ev_periodic_start (EV_P_ ev_periodic *w) |
1695 | ev_periodic_start (EV_P_ ev_periodic *w) |
1678 | { |
1696 | { |
1679 | if (expect_false (ev_is_active (w))) |
1697 | if (expect_false (ev_is_active (w))) |
1680 | return; |
1698 | return; |
1681 | |
1699 | |
… | |
… | |
1683 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1701 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1684 | else if (w->interval) |
1702 | else if (w->interval) |
1685 | { |
1703 | { |
1686 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1704 | 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 */ |
1705 | /* 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; |
1706 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1689 | } |
1707 | } |
|
|
1708 | else |
|
|
1709 | ((WT)w)->at = w->offset; |
1690 | |
1710 | |
1691 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1711 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1692 | array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); |
1712 | array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); |
1693 | periodics [periodiccnt - 1] = w; |
1713 | periodics [periodiccnt - 1] = w; |
1694 | upheap ((WT *)periodics, periodiccnt - 1); |
1714 | upheap ((WT *)periodics, periodiccnt - 1); |
1695 | |
1715 | |
1696 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
1716 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
1697 | } |
1717 | } |
1698 | |
1718 | |
1699 | void |
1719 | void noinline |
1700 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1720 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1701 | { |
1721 | { |
1702 | clear_pending (EV_A_ (W)w); |
1722 | clear_pending (EV_A_ (W)w); |
1703 | if (expect_false (!ev_is_active (w))) |
1723 | if (expect_false (!ev_is_active (w))) |
1704 | return; |
1724 | return; |
… | |
… | |
1716 | } |
1736 | } |
1717 | |
1737 | |
1718 | ev_stop (EV_A_ (W)w); |
1738 | ev_stop (EV_A_ (W)w); |
1719 | } |
1739 | } |
1720 | |
1740 | |
1721 | void |
1741 | void noinline |
1722 | ev_periodic_again (EV_P_ ev_periodic *w) |
1742 | ev_periodic_again (EV_P_ ev_periodic *w) |
1723 | { |
1743 | { |
1724 | /* TODO: use adjustheap and recalculation */ |
1744 | /* TODO: use adjustheap and recalculation */ |
1725 | ev_periodic_stop (EV_A_ w); |
1745 | ev_periodic_stop (EV_A_ w); |
1726 | ev_periodic_start (EV_A_ w); |
1746 | ev_periodic_start (EV_A_ w); |
… | |
… | |
1729 | |
1749 | |
1730 | #ifndef SA_RESTART |
1750 | #ifndef SA_RESTART |
1731 | # define SA_RESTART 0 |
1751 | # define SA_RESTART 0 |
1732 | #endif |
1752 | #endif |
1733 | |
1753 | |
1734 | void |
1754 | void noinline |
1735 | ev_signal_start (EV_P_ ev_signal *w) |
1755 | ev_signal_start (EV_P_ ev_signal *w) |
1736 | { |
1756 | { |
1737 | #if EV_MULTIPLICITY |
1757 | #if EV_MULTIPLICITY |
1738 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1758 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1739 | #endif |
1759 | #endif |
… | |
… | |
1758 | sigaction (w->signum, &sa, 0); |
1778 | sigaction (w->signum, &sa, 0); |
1759 | #endif |
1779 | #endif |
1760 | } |
1780 | } |
1761 | } |
1781 | } |
1762 | |
1782 | |
1763 | void |
1783 | void noinline |
1764 | ev_signal_stop (EV_P_ ev_signal *w) |
1784 | ev_signal_stop (EV_P_ ev_signal *w) |
1765 | { |
1785 | { |
1766 | clear_pending (EV_A_ (W)w); |
1786 | clear_pending (EV_A_ (W)w); |
1767 | if (expect_false (!ev_is_active (w))) |
1787 | if (expect_false (!ev_is_active (w))) |
1768 | return; |
1788 | return; |