1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libev@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * tion, are permitted provided that the following conditions are met: |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * |
9 | * |
… | |
… | |
64 | # if HAVE_CLOCK_GETTIME |
64 | # if HAVE_CLOCK_GETTIME |
65 | # ifndef EV_USE_MONOTONIC |
65 | # ifndef EV_USE_MONOTONIC |
66 | # define EV_USE_MONOTONIC 1 |
66 | # define EV_USE_MONOTONIC 1 |
67 | # endif |
67 | # endif |
68 | # ifndef EV_USE_REALTIME |
68 | # ifndef EV_USE_REALTIME |
69 | # define EV_USE_REALTIME 1 |
69 | # define EV_USE_REALTIME 0 |
70 | # endif |
70 | # endif |
71 | # else |
71 | # else |
72 | # ifndef EV_USE_MONOTONIC |
72 | # ifndef EV_USE_MONOTONIC |
73 | # define EV_USE_MONOTONIC 0 |
73 | # define EV_USE_MONOTONIC 0 |
74 | # endif |
74 | # endif |
… | |
… | |
193 | # define EV_USE_MONOTONIC 0 |
193 | # define EV_USE_MONOTONIC 0 |
194 | # endif |
194 | # endif |
195 | #endif |
195 | #endif |
196 | |
196 | |
197 | #ifndef EV_USE_REALTIME |
197 | #ifndef EV_USE_REALTIME |
198 | # define EV_USE_REALTIME 0 |
198 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
199 | #endif |
199 | #endif |
200 | |
200 | |
201 | #ifndef EV_USE_NANOSLEEP |
201 | #ifndef EV_USE_NANOSLEEP |
202 | # if _POSIX_C_SOURCE >= 199309L |
202 | # if _POSIX_C_SOURCE >= 199309L |
203 | # define EV_USE_NANOSLEEP 1 |
203 | # define EV_USE_NANOSLEEP 1 |
… | |
… | |
397 | typedef ev_watcher_time *WT; |
397 | typedef ev_watcher_time *WT; |
398 | |
398 | |
399 | #define ev_active(w) ((W)(w))->active |
399 | #define ev_active(w) ((W)(w))->active |
400 | #define ev_at(w) ((WT)(w))->at |
400 | #define ev_at(w) ((WT)(w))->at |
401 | |
401 | |
402 | #if EV_USE_MONOTONIC |
402 | #if EV_USE_REALTIME |
403 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
403 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
404 | /* giving it a reasonably high chance of working on typical architetcures */ |
404 | /* giving it a reasonably high chance of working on typical architetcures */ |
|
|
405 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
|
|
406 | #endif |
|
|
407 | |
|
|
408 | #if EV_USE_MONOTONIC |
405 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
409 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
406 | #endif |
410 | #endif |
407 | |
411 | |
408 | #ifdef _WIN32 |
412 | #ifdef _WIN32 |
409 | # include "ev_win32.c" |
413 | # include "ev_win32.c" |
… | |
… | |
553 | |
557 | |
554 | ev_tstamp |
558 | ev_tstamp |
555 | ev_time (void) |
559 | ev_time (void) |
556 | { |
560 | { |
557 | #if EV_USE_REALTIME |
561 | #if EV_USE_REALTIME |
|
|
562 | if (expect_true (have_realtime)) |
|
|
563 | { |
558 | struct timespec ts; |
564 | struct timespec ts; |
559 | clock_gettime (CLOCK_REALTIME, &ts); |
565 | clock_gettime (CLOCK_REALTIME, &ts); |
560 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
566 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
561 | #else |
567 | } |
|
|
568 | #endif |
|
|
569 | |
562 | struct timeval tv; |
570 | struct timeval tv; |
563 | gettimeofday (&tv, 0); |
571 | gettimeofday (&tv, 0); |
564 | return tv.tv_sec + tv.tv_usec * 1e-6; |
572 | return tv.tv_sec + tv.tv_usec * 1e-6; |
565 | #endif |
|
|
566 | } |
573 | } |
567 | |
574 | |
568 | ev_tstamp inline_size |
575 | ev_tstamp inline_size |
569 | get_clock (void) |
576 | get_clock (void) |
570 | { |
577 | { |
… | |
… | |
669 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
676 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
670 | } |
677 | } |
671 | #endif |
678 | #endif |
672 | |
679 | |
673 | #define array_free(stem, idx) \ |
680 | #define array_free(stem, idx) \ |
674 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
681 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
675 | |
682 | |
676 | /*****************************************************************************/ |
683 | /*****************************************************************************/ |
677 | |
684 | |
678 | void noinline |
685 | void noinline |
679 | ev_feed_event (EV_P_ void *w, int revents) |
686 | ev_feed_event (EV_P_ void *w, int revents) |
… | |
… | |
748 | #ifdef EV_FD_TO_WIN32_HANDLE |
755 | #ifdef EV_FD_TO_WIN32_HANDLE |
749 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
756 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
750 | #else |
757 | #else |
751 | anfd->handle = _get_osfhandle (fd); |
758 | anfd->handle = _get_osfhandle (fd); |
752 | #endif |
759 | #endif |
753 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
760 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
754 | } |
761 | } |
755 | #endif |
762 | #endif |
756 | |
763 | |
757 | { |
764 | { |
758 | unsigned char o_events = anfd->events; |
765 | unsigned char o_events = anfd->events; |
759 | unsigned char o_reify = anfd->reify; |
766 | unsigned char o_reify = anfd->reify; |
760 | |
767 | |
761 | anfd->reify = 0; |
768 | anfd->reify = 0; |
762 | anfd->events = events; |
769 | anfd->events = events; |
763 | |
770 | |
764 | if (o_events != events || o_reify & EV_IOFDSET) |
771 | if (o_events != events || o_reify & EV__IOFDSET) |
765 | backend_modify (EV_A_ fd, o_events, events); |
772 | backend_modify (EV_A_ fd, o_events, events); |
766 | } |
773 | } |
767 | } |
774 | } |
768 | |
775 | |
769 | fdchangecnt = 0; |
776 | fdchangecnt = 0; |
… | |
… | |
840 | for (fd = 0; fd < anfdmax; ++fd) |
847 | for (fd = 0; fd < anfdmax; ++fd) |
841 | if (anfds [fd].events) |
848 | if (anfds [fd].events) |
842 | { |
849 | { |
843 | anfds [fd].events = 0; |
850 | anfds [fd].events = 0; |
844 | anfds [fd].emask = 0; |
851 | anfds [fd].emask = 0; |
845 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
852 | fd_change (EV_A_ fd, EV__IOFDSET | 1); |
846 | } |
853 | } |
847 | } |
854 | } |
848 | |
855 | |
849 | /*****************************************************************************/ |
856 | /*****************************************************************************/ |
850 | |
857 | |
… | |
… | |
1131 | ev_feed_signal_event (EV_P_ int signum) |
1138 | ev_feed_signal_event (EV_P_ int signum) |
1132 | { |
1139 | { |
1133 | WL w; |
1140 | WL w; |
1134 | |
1141 | |
1135 | #if EV_MULTIPLICITY |
1142 | #if EV_MULTIPLICITY |
1136 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1143 | assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1137 | #endif |
1144 | #endif |
1138 | |
1145 | |
1139 | --signum; |
1146 | --signum; |
1140 | |
1147 | |
1141 | if (signum < 0 || signum >= signalmax) |
1148 | if (signum < 0 || signum >= signalmax) |
… | |
… | |
1270 | /* kqueue is borked on everything but netbsd apparently */ |
1277 | /* kqueue is borked on everything but netbsd apparently */ |
1271 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1278 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1272 | flags &= ~EVBACKEND_KQUEUE; |
1279 | flags &= ~EVBACKEND_KQUEUE; |
1273 | #endif |
1280 | #endif |
1274 | #ifdef __APPLE__ |
1281 | #ifdef __APPLE__ |
1275 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
1282 | /* only select works correctly on that "unix-certified" platform */ |
1276 | flags &= ~EVBACKEND_POLL; |
1283 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
|
|
1284 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
1277 | #endif |
1285 | #endif |
1278 | |
1286 | |
1279 | return flags; |
1287 | return flags; |
1280 | } |
1288 | } |
1281 | |
1289 | |
… | |
… | |
1318 | static void noinline |
1326 | static void noinline |
1319 | loop_init (EV_P_ unsigned int flags) |
1327 | loop_init (EV_P_ unsigned int flags) |
1320 | { |
1328 | { |
1321 | if (!backend) |
1329 | if (!backend) |
1322 | { |
1330 | { |
|
|
1331 | #if EV_USE_REALTIME |
|
|
1332 | if (!have_realtime) |
|
|
1333 | { |
|
|
1334 | struct timespec ts; |
|
|
1335 | |
|
|
1336 | if (!clock_gettime (CLOCK_REALTIME, &ts)) |
|
|
1337 | have_realtime = 1; |
|
|
1338 | } |
|
|
1339 | #endif |
|
|
1340 | |
1323 | #if EV_USE_MONOTONIC |
1341 | #if EV_USE_MONOTONIC |
|
|
1342 | if (!have_monotonic) |
1324 | { |
1343 | { |
1325 | struct timespec ts; |
1344 | struct timespec ts; |
|
|
1345 | |
1326 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1346 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1327 | have_monotonic = 1; |
1347 | have_monotonic = 1; |
1328 | } |
1348 | } |
1329 | #endif |
1349 | #endif |
1330 | |
1350 | |
1331 | ev_rt_now = ev_time (); |
1351 | ev_rt_now = ev_time (); |
1332 | mn_now = get_clock (); |
1352 | mn_now = get_clock (); |
1333 | now_floor = mn_now; |
1353 | now_floor = mn_now; |
… | |
… | |
1534 | |
1554 | |
1535 | #if EV_VERIFY |
1555 | #if EV_VERIFY |
1536 | static void noinline |
1556 | static void noinline |
1537 | verify_watcher (EV_P_ W w) |
1557 | verify_watcher (EV_P_ W w) |
1538 | { |
1558 | { |
1539 | assert (("watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
1559 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
1540 | |
1560 | |
1541 | if (w->pending) |
1561 | if (w->pending) |
1542 | assert (("pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
1562 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
1543 | } |
1563 | } |
1544 | |
1564 | |
1545 | static void noinline |
1565 | static void noinline |
1546 | verify_heap (EV_P_ ANHE *heap, int N) |
1566 | verify_heap (EV_P_ ANHE *heap, int N) |
1547 | { |
1567 | { |
1548 | int i; |
1568 | int i; |
1549 | |
1569 | |
1550 | for (i = HEAP0; i < N + HEAP0; ++i) |
1570 | for (i = HEAP0; i < N + HEAP0; ++i) |
1551 | { |
1571 | { |
1552 | assert (("active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
1572 | assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
1553 | assert (("heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
1573 | assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
1554 | assert (("heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
1574 | assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
1555 | |
1575 | |
1556 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
1576 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
1557 | } |
1577 | } |
1558 | } |
1578 | } |
1559 | |
1579 | |
1560 | static void noinline |
1580 | static void noinline |
1561 | array_verify (EV_P_ W *ws, int cnt) |
1581 | array_verify (EV_P_ W *ws, int cnt) |
1562 | { |
1582 | { |
1563 | while (cnt--) |
1583 | while (cnt--) |
1564 | { |
1584 | { |
1565 | assert (("active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
1585 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
1566 | verify_watcher (EV_A_ ws [cnt]); |
1586 | verify_watcher (EV_A_ ws [cnt]); |
1567 | } |
1587 | } |
1568 | } |
1588 | } |
1569 | #endif |
1589 | #endif |
1570 | |
1590 | |
… | |
… | |
1577 | |
1597 | |
1578 | assert (activecnt >= -1); |
1598 | assert (activecnt >= -1); |
1579 | |
1599 | |
1580 | assert (fdchangemax >= fdchangecnt); |
1600 | assert (fdchangemax >= fdchangecnt); |
1581 | for (i = 0; i < fdchangecnt; ++i) |
1601 | for (i = 0; i < fdchangecnt; ++i) |
1582 | assert (("negative fd in fdchanges", fdchanges [i] >= 0)); |
1602 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
1583 | |
1603 | |
1584 | assert (anfdmax >= 0); |
1604 | assert (anfdmax >= 0); |
1585 | for (i = 0; i < anfdmax; ++i) |
1605 | for (i = 0; i < anfdmax; ++i) |
1586 | for (w = anfds [i].head; w; w = w->next) |
1606 | for (w = anfds [i].head; w; w = w->next) |
1587 | { |
1607 | { |
1588 | verify_watcher (EV_A_ (W)w); |
1608 | verify_watcher (EV_A_ (W)w); |
1589 | assert (("inactive fd watcher on anfd list", ev_active (w) == 1)); |
1609 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
1590 | assert (("fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
1610 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
1591 | } |
1611 | } |
1592 | |
1612 | |
1593 | assert (timermax >= timercnt); |
1613 | assert (timermax >= timercnt); |
1594 | verify_heap (EV_A_ timers, timercnt); |
1614 | verify_heap (EV_A_ timers, timercnt); |
1595 | |
1615 | |
… | |
… | |
1712 | { |
1732 | { |
1713 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1733 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1714 | |
1734 | |
1715 | if (expect_true (p->w)) |
1735 | if (expect_true (p->w)) |
1716 | { |
1736 | { |
1717 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
1737 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
1718 | |
1738 | |
1719 | p->w->pending = 0; |
1739 | p->w->pending = 0; |
1720 | EV_CB_INVOKE (p->w, p->events); |
1740 | EV_CB_INVOKE (p->w, p->events); |
1721 | EV_FREQUENT_CHECK; |
1741 | EV_FREQUENT_CHECK; |
1722 | } |
1742 | } |
… | |
… | |
1753 | |
1773 | |
1754 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
1774 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
1755 | { |
1775 | { |
1756 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
1776 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
1757 | |
1777 | |
1758 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
1778 | /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/ |
1759 | |
1779 | |
1760 | /* first reschedule or stop timer */ |
1780 | /* first reschedule or stop timer */ |
1761 | if (w->repeat) |
1781 | if (w->repeat) |
1762 | { |
1782 | { |
1763 | ev_at (w) += w->repeat; |
1783 | ev_at (w) += w->repeat; |
1764 | if (ev_at (w) < mn_now) |
1784 | if (ev_at (w) < mn_now) |
1765 | ev_at (w) = mn_now; |
1785 | ev_at (w) = mn_now; |
1766 | |
1786 | |
1767 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1787 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1768 | |
1788 | |
1769 | ANHE_at_cache (timers [HEAP0]); |
1789 | ANHE_at_cache (timers [HEAP0]); |
1770 | downheap (timers, timercnt, HEAP0); |
1790 | downheap (timers, timercnt, HEAP0); |
1771 | } |
1791 | } |
1772 | else |
1792 | else |
… | |
… | |
1785 | |
1805 | |
1786 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
1806 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
1787 | { |
1807 | { |
1788 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
1808 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
1789 | |
1809 | |
1790 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
1810 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
1791 | |
1811 | |
1792 | /* first reschedule or stop timer */ |
1812 | /* first reschedule or stop timer */ |
1793 | if (w->reschedule_cb) |
1813 | if (w->reschedule_cb) |
1794 | { |
1814 | { |
1795 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1815 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1796 | |
1816 | |
1797 | assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
1817 | assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
1798 | |
1818 | |
1799 | ANHE_at_cache (periodics [HEAP0]); |
1819 | ANHE_at_cache (periodics [HEAP0]); |
1800 | downheap (periodics, periodiccnt, HEAP0); |
1820 | downheap (periodics, periodiccnt, HEAP0); |
1801 | } |
1821 | } |
1802 | else if (w->interval) |
1822 | else if (w->interval) |
… | |
… | |
1977 | { |
1997 | { |
1978 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1998 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1979 | call_pending (EV_A); |
1999 | call_pending (EV_A); |
1980 | } |
2000 | } |
1981 | |
2001 | |
1982 | if (expect_false (!activecnt)) |
|
|
1983 | break; |
|
|
1984 | |
|
|
1985 | /* we might have forked, so reify kernel state if necessary */ |
2002 | /* we might have forked, so reify kernel state if necessary */ |
1986 | if (expect_false (postfork)) |
2003 | if (expect_false (postfork)) |
1987 | loop_fork (EV_A); |
2004 | loop_fork (EV_A); |
1988 | |
2005 | |
1989 | /* update fd-related kernel structures */ |
2006 | /* update fd-related kernel structures */ |
… | |
… | |
2153 | int fd = w->fd; |
2170 | int fd = w->fd; |
2154 | |
2171 | |
2155 | if (expect_false (ev_is_active (w))) |
2172 | if (expect_false (ev_is_active (w))) |
2156 | return; |
2173 | return; |
2157 | |
2174 | |
2158 | assert (("ev_io_start called with negative fd", fd >= 0)); |
2175 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
2159 | assert (("ev_io start called with illegal event mask", !(w->events & ~(EV_IOFDSET | EV_READ | EV_WRITE)))); |
2176 | assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2160 | |
2177 | |
2161 | EV_FREQUENT_CHECK; |
2178 | EV_FREQUENT_CHECK; |
2162 | |
2179 | |
2163 | ev_start (EV_A_ (W)w, 1); |
2180 | ev_start (EV_A_ (W)w, 1); |
2164 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2181 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2165 | wlist_add (&anfds[fd].head, (WL)w); |
2182 | wlist_add (&anfds[fd].head, (WL)w); |
2166 | |
2183 | |
2167 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
2184 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | 1); |
2168 | w->events &= ~EV_IOFDSET; |
2185 | w->events &= ~EV__IOFDSET; |
2169 | |
2186 | |
2170 | EV_FREQUENT_CHECK; |
2187 | EV_FREQUENT_CHECK; |
2171 | } |
2188 | } |
2172 | |
2189 | |
2173 | void noinline |
2190 | void noinline |
… | |
… | |
2175 | { |
2192 | { |
2176 | clear_pending (EV_A_ (W)w); |
2193 | clear_pending (EV_A_ (W)w); |
2177 | if (expect_false (!ev_is_active (w))) |
2194 | if (expect_false (!ev_is_active (w))) |
2178 | return; |
2195 | return; |
2179 | |
2196 | |
2180 | assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2197 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2181 | |
2198 | |
2182 | EV_FREQUENT_CHECK; |
2199 | EV_FREQUENT_CHECK; |
2183 | |
2200 | |
2184 | wlist_del (&anfds[w->fd].head, (WL)w); |
2201 | wlist_del (&anfds[w->fd].head, (WL)w); |
2185 | ev_stop (EV_A_ (W)w); |
2202 | ev_stop (EV_A_ (W)w); |
… | |
… | |
2195 | if (expect_false (ev_is_active (w))) |
2212 | if (expect_false (ev_is_active (w))) |
2196 | return; |
2213 | return; |
2197 | |
2214 | |
2198 | ev_at (w) += mn_now; |
2215 | ev_at (w) += mn_now; |
2199 | |
2216 | |
2200 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2217 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2201 | |
2218 | |
2202 | EV_FREQUENT_CHECK; |
2219 | EV_FREQUENT_CHECK; |
2203 | |
2220 | |
2204 | ++timercnt; |
2221 | ++timercnt; |
2205 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
2222 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
… | |
… | |
2208 | ANHE_at_cache (timers [ev_active (w)]); |
2225 | ANHE_at_cache (timers [ev_active (w)]); |
2209 | upheap (timers, ev_active (w)); |
2226 | upheap (timers, ev_active (w)); |
2210 | |
2227 | |
2211 | EV_FREQUENT_CHECK; |
2228 | EV_FREQUENT_CHECK; |
2212 | |
2229 | |
2213 | /*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2230 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2214 | } |
2231 | } |
2215 | |
2232 | |
2216 | void noinline |
2233 | void noinline |
2217 | ev_timer_stop (EV_P_ ev_timer *w) |
2234 | ev_timer_stop (EV_P_ ev_timer *w) |
2218 | { |
2235 | { |
… | |
… | |
2223 | EV_FREQUENT_CHECK; |
2240 | EV_FREQUENT_CHECK; |
2224 | |
2241 | |
2225 | { |
2242 | { |
2226 | int active = ev_active (w); |
2243 | int active = ev_active (w); |
2227 | |
2244 | |
2228 | assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
2245 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
2229 | |
2246 | |
2230 | --timercnt; |
2247 | --timercnt; |
2231 | |
2248 | |
2232 | if (expect_true (active < timercnt + HEAP0)) |
2249 | if (expect_true (active < timercnt + HEAP0)) |
2233 | { |
2250 | { |
… | |
… | |
2277 | |
2294 | |
2278 | if (w->reschedule_cb) |
2295 | if (w->reschedule_cb) |
2279 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2296 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2280 | else if (w->interval) |
2297 | else if (w->interval) |
2281 | { |
2298 | { |
2282 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2299 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2283 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2300 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2284 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2301 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2285 | } |
2302 | } |
2286 | else |
2303 | else |
2287 | ev_at (w) = w->offset; |
2304 | ev_at (w) = w->offset; |
… | |
… | |
2295 | ANHE_at_cache (periodics [ev_active (w)]); |
2312 | ANHE_at_cache (periodics [ev_active (w)]); |
2296 | upheap (periodics, ev_active (w)); |
2313 | upheap (periodics, ev_active (w)); |
2297 | |
2314 | |
2298 | EV_FREQUENT_CHECK; |
2315 | EV_FREQUENT_CHECK; |
2299 | |
2316 | |
2300 | /*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2317 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2301 | } |
2318 | } |
2302 | |
2319 | |
2303 | void noinline |
2320 | void noinline |
2304 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2321 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2305 | { |
2322 | { |
… | |
… | |
2310 | EV_FREQUENT_CHECK; |
2327 | EV_FREQUENT_CHECK; |
2311 | |
2328 | |
2312 | { |
2329 | { |
2313 | int active = ev_active (w); |
2330 | int active = ev_active (w); |
2314 | |
2331 | |
2315 | assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
2332 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
2316 | |
2333 | |
2317 | --periodiccnt; |
2334 | --periodiccnt; |
2318 | |
2335 | |
2319 | if (expect_true (active < periodiccnt + HEAP0)) |
2336 | if (expect_true (active < periodiccnt + HEAP0)) |
2320 | { |
2337 | { |
… | |
… | |
2343 | |
2360 | |
2344 | void noinline |
2361 | void noinline |
2345 | ev_signal_start (EV_P_ ev_signal *w) |
2362 | ev_signal_start (EV_P_ ev_signal *w) |
2346 | { |
2363 | { |
2347 | #if EV_MULTIPLICITY |
2364 | #if EV_MULTIPLICITY |
2348 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2365 | assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2349 | #endif |
2366 | #endif |
2350 | if (expect_false (ev_is_active (w))) |
2367 | if (expect_false (ev_is_active (w))) |
2351 | return; |
2368 | return; |
2352 | |
2369 | |
2353 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2370 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); |
2354 | |
2371 | |
2355 | evpipe_init (EV_A); |
2372 | evpipe_init (EV_A); |
2356 | |
2373 | |
2357 | EV_FREQUENT_CHECK; |
2374 | EV_FREQUENT_CHECK; |
2358 | |
2375 | |
… | |
… | |
2409 | |
2426 | |
2410 | void |
2427 | void |
2411 | ev_child_start (EV_P_ ev_child *w) |
2428 | ev_child_start (EV_P_ ev_child *w) |
2412 | { |
2429 | { |
2413 | #if EV_MULTIPLICITY |
2430 | #if EV_MULTIPLICITY |
2414 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2431 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2415 | #endif |
2432 | #endif |
2416 | if (expect_false (ev_is_active (w))) |
2433 | if (expect_false (ev_is_active (w))) |
2417 | return; |
2434 | return; |
2418 | |
2435 | |
2419 | EV_FREQUENT_CHECK; |
2436 | EV_FREQUENT_CHECK; |
… | |
… | |
2478 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2495 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2479 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2496 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2480 | |
2497 | |
2481 | char *pend = strrchr (path, '/'); |
2498 | char *pend = strrchr (path, '/'); |
2482 | |
2499 | |
2483 | if (!pend) |
2500 | if (!pend || pend == path) |
2484 | break; /* whoops, no '/', complain to your admin */ |
2501 | break; |
2485 | |
2502 | |
2486 | *pend = 0; |
2503 | *pend = 0; |
2487 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2504 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2488 | } |
2505 | } |
2489 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2506 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2490 | } |
2507 | } |
2491 | } |
2508 | } |
2492 | else |
2509 | |
|
|
2510 | if (w->wd >= 0) |
2493 | { |
2511 | { |
2494 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2512 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2495 | |
2513 | |
2496 | /* now local changes will be tracked by inotify, but remote changes won't */ |
2514 | /* now local changes will be tracked by inotify, but remote changes won't */ |
2497 | /* unless the filesystem it known to be local, we therefore still poll */ |
2515 | /* unless the filesystem it known to be local, we therefore still poll */ |
… | |
… | |
2547 | |
2565 | |
2548 | if (w->wd == wd || wd == -1) |
2566 | if (w->wd == wd || wd == -1) |
2549 | { |
2567 | { |
2550 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2568 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2551 | { |
2569 | { |
|
|
2570 | wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2552 | w->wd = -1; |
2571 | w->wd = -1; |
2553 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2572 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2554 | } |
2573 | } |
2555 | |
2574 | |
2556 | stat_timer_cb (EV_A_ &w->timer, 0); |
2575 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2903 | static void |
2922 | static void |
2904 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
2923 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
2905 | { |
2924 | { |
2906 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
2925 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
2907 | |
2926 | |
|
|
2927 | ev_embed_stop (EV_A_ w); |
|
|
2928 | |
2908 | { |
2929 | { |
2909 | struct ev_loop *loop = w->other; |
2930 | struct ev_loop *loop = w->other; |
2910 | |
2931 | |
2911 | ev_loop_fork (EV_A); |
2932 | ev_loop_fork (EV_A); |
|
|
2933 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
2912 | } |
2934 | } |
|
|
2935 | |
|
|
2936 | ev_embed_start (EV_A_ w); |
2913 | } |
2937 | } |
2914 | |
2938 | |
2915 | #if 0 |
2939 | #if 0 |
2916 | static void |
2940 | static void |
2917 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
2941 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
… | |
… | |
2926 | if (expect_false (ev_is_active (w))) |
2950 | if (expect_false (ev_is_active (w))) |
2927 | return; |
2951 | return; |
2928 | |
2952 | |
2929 | { |
2953 | { |
2930 | struct ev_loop *loop = w->other; |
2954 | struct ev_loop *loop = w->other; |
2931 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2955 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2932 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2956 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2933 | } |
2957 | } |
2934 | |
2958 | |
2935 | EV_FREQUENT_CHECK; |
2959 | EV_FREQUENT_CHECK; |
2936 | |
2960 | |
… | |
… | |
3119 | ev_timer_set (&once->to, timeout, 0.); |
3143 | ev_timer_set (&once->to, timeout, 0.); |
3120 | ev_timer_start (EV_A_ &once->to); |
3144 | ev_timer_start (EV_A_ &once->to); |
3121 | } |
3145 | } |
3122 | } |
3146 | } |
3123 | |
3147 | |
|
|
3148 | /*****************************************************************************/ |
|
|
3149 | |
|
|
3150 | #if 0 |
|
|
3151 | void |
|
|
3152 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
|
|
3153 | { |
|
|
3154 | int i, j; |
|
|
3155 | ev_watcher_list *wl, *wn; |
|
|
3156 | |
|
|
3157 | if (types & (EV_IO | EV_EMBED)) |
|
|
3158 | for (i = 0; i < anfdmax; ++i) |
|
|
3159 | for (wl = anfds [i].head; wl; ) |
|
|
3160 | { |
|
|
3161 | wn = wl->next; |
|
|
3162 | |
|
|
3163 | #if EV_EMBED_ENABLE |
|
|
3164 | if (ev_cb ((ev_io *)wl) == embed_io_cb) |
|
|
3165 | { |
|
|
3166 | if (types & EV_EMBED) |
|
|
3167 | cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io)); |
|
|
3168 | } |
|
|
3169 | else |
|
|
3170 | #endif |
|
|
3171 | #if EV_USE_INOTIFY |
|
|
3172 | if (ev_cb ((ev_io *)wl) == infy_cb) |
|
|
3173 | ; |
|
|
3174 | else |
|
|
3175 | #endif |
|
|
3176 | if ((ev_io *)wl != &pipeev) |
|
|
3177 | if (types & EV_IO) |
|
|
3178 | cb (EV_A_ EV_IO, wl); |
|
|
3179 | |
|
|
3180 | wl = wn; |
|
|
3181 | } |
|
|
3182 | |
|
|
3183 | if (types & (EV_TIMER | EV_STAT)) |
|
|
3184 | for (i = timercnt + HEAP0; i-- > HEAP0; ) |
|
|
3185 | #if EV_STAT_ENABLE |
|
|
3186 | /*TODO: timer is not always active*/ |
|
|
3187 | if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb) |
|
|
3188 | { |
|
|
3189 | if (types & EV_STAT) |
|
|
3190 | cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer)); |
|
|
3191 | } |
|
|
3192 | else |
|
|
3193 | #endif |
|
|
3194 | if (types & EV_TIMER) |
|
|
3195 | cb (EV_A_ EV_TIMER, ANHE_w (timers [i])); |
|
|
3196 | |
|
|
3197 | #if EV_PERIODIC_ENABLE |
|
|
3198 | if (types & EV_PERIODIC) |
|
|
3199 | for (i = periodiccnt + HEAP0; i-- > HEAP0; ) |
|
|
3200 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
|
|
3201 | #endif |
|
|
3202 | |
|
|
3203 | #if EV_IDLE_ENABLE |
|
|
3204 | if (types & EV_IDLE) |
|
|
3205 | for (j = NUMPRI; i--; ) |
|
|
3206 | for (i = idlecnt [j]; i--; ) |
|
|
3207 | cb (EV_A_ EV_IDLE, idles [j][i]); |
|
|
3208 | #endif |
|
|
3209 | |
|
|
3210 | #if EV_FORK_ENABLE |
|
|
3211 | if (types & EV_FORK) |
|
|
3212 | for (i = forkcnt; i--; ) |
|
|
3213 | if (ev_cb (forks [i]) != embed_fork_cb) |
|
|
3214 | cb (EV_A_ EV_FORK, forks [i]); |
|
|
3215 | #endif |
|
|
3216 | |
|
|
3217 | #if EV_ASYNC_ENABLE |
|
|
3218 | if (types & EV_ASYNC) |
|
|
3219 | for (i = asynccnt; i--; ) |
|
|
3220 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
|
|
3221 | #endif |
|
|
3222 | |
|
|
3223 | if (types & EV_PREPARE) |
|
|
3224 | for (i = preparecnt; i--; ) |
|
|
3225 | #if EV_EMBED_ENABLE |
|
|
3226 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
|
|
3227 | #endif |
|
|
3228 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
3229 | |
|
|
3230 | if (types & EV_CHECK) |
|
|
3231 | for (i = checkcnt; i--; ) |
|
|
3232 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
3233 | |
|
|
3234 | if (types & EV_SIGNAL) |
|
|
3235 | for (i = 0; i < signalmax; ++i) |
|
|
3236 | for (wl = signals [i].head; wl; ) |
|
|
3237 | { |
|
|
3238 | wn = wl->next; |
|
|
3239 | cb (EV_A_ EV_SIGNAL, wl); |
|
|
3240 | wl = wn; |
|
|
3241 | } |
|
|
3242 | |
|
|
3243 | if (types & EV_CHILD) |
|
|
3244 | for (i = EV_PID_HASHSIZE; i--; ) |
|
|
3245 | for (wl = childs [i]; wl; ) |
|
|
3246 | { |
|
|
3247 | wn = wl->next; |
|
|
3248 | cb (EV_A_ EV_CHILD, wl); |
|
|
3249 | wl = wn; |
|
|
3250 | } |
|
|
3251 | /* EV_STAT 0x00001000 /* stat data changed */ |
|
|
3252 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
|
|
3253 | } |
|
|
3254 | #endif |
|
|
3255 | |
3124 | #if EV_MULTIPLICITY |
3256 | #if EV_MULTIPLICITY |
3125 | #include "ev_wrap.h" |
3257 | #include "ev_wrap.h" |
3126 | #endif |
3258 | #endif |
3127 | |
3259 | |
3128 | #ifdef __cplusplus |
3260 | #ifdef __cplusplus |