… | |
… | |
187 | #endif |
187 | #endif |
188 | |
188 | |
189 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
189 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
190 | |
190 | |
191 | /* try to deduce the maximum number of signals on this platform */ |
191 | /* try to deduce the maximum number of signals on this platform */ |
192 | /* one some platforms, NSIG is one too large. we do not bother */ |
|
|
193 | #if defined (EV_NSIG) |
192 | #if defined (EV_NSIG) |
194 | /* use what's provided */ |
193 | /* use what's provided */ |
195 | #elif defined (NSIG) |
194 | #elif defined (NSIG) |
196 | # define EV_NSIG (NSIG) |
195 | # define EV_NSIG (NSIG) |
197 | #elif defined(_NSIG) |
196 | #elif defined(_NSIG) |
… | |
… | |
387 | # include <stdint.h> |
386 | # include <stdint.h> |
388 | # ifndef EFD_NONBLOCK |
387 | # ifndef EFD_NONBLOCK |
389 | # define EFD_NONBLOCK O_NONBLOCK |
388 | # define EFD_NONBLOCK O_NONBLOCK |
390 | # endif |
389 | # endif |
391 | # ifndef EFD_CLOEXEC |
390 | # ifndef EFD_CLOEXEC |
|
|
391 | # ifdef O_CLOEXEC |
392 | # define EFD_CLOEXEC O_CLOEXEC |
392 | # define EFD_CLOEXEC O_CLOEXEC |
|
|
393 | # else |
|
|
394 | # define EFD_CLOEXEC 02000000 |
|
|
395 | # endif |
393 | # endif |
396 | # endif |
394 | # ifdef __cplusplus |
397 | # ifdef __cplusplus |
395 | extern "C" { |
398 | extern "C" { |
396 | # endif |
399 | # endif |
397 | int eventfd (unsigned int initval, int flags); |
400 | int eventfd (unsigned int initval, int flags); |
… | |
… | |
473 | |
476 | |
474 | #if EV_USE_MONOTONIC |
477 | #if EV_USE_MONOTONIC |
475 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
478 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
476 | #endif |
479 | #endif |
477 | |
480 | |
|
|
481 | #ifndef EV_FD_TO_WIN32_HANDLE |
|
|
482 | # define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
|
|
483 | #endif |
|
|
484 | #ifndef EV_WIN32_HANDLE_TO_FD |
|
|
485 | # define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (fd, 0) |
|
|
486 | #endif |
|
|
487 | #ifndef EV_WIN32_CLOSE_FD |
|
|
488 | # define EV_WIN32_CLOSE_FD(fd) close (fd) |
|
|
489 | #endif |
|
|
490 | |
478 | #ifdef _WIN32 |
491 | #ifdef _WIN32 |
479 | # include "ev_win32.c" |
492 | # include "ev_win32.c" |
480 | #endif |
493 | #endif |
481 | |
494 | |
482 | /*****************************************************************************/ |
495 | /*****************************************************************************/ |
… | |
… | |
873 | |
886 | |
874 | #if EV_SELECT_IS_WINSOCKET |
887 | #if EV_SELECT_IS_WINSOCKET |
875 | if (events) |
888 | if (events) |
876 | { |
889 | { |
877 | unsigned long arg; |
890 | unsigned long arg; |
878 | #ifdef EV_FD_TO_WIN32_HANDLE |
|
|
879 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
891 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
880 | #else |
|
|
881 | anfd->handle = _get_osfhandle (fd); |
|
|
882 | #endif |
|
|
883 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
892 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
884 | } |
893 | } |
885 | #endif |
894 | #endif |
886 | |
895 | |
887 | { |
896 | { |
… | |
… | |
958 | |
967 | |
959 | for (fd = anfdmax; fd--; ) |
968 | for (fd = anfdmax; fd--; ) |
960 | if (anfds [fd].events) |
969 | if (anfds [fd].events) |
961 | { |
970 | { |
962 | fd_kill (EV_A_ fd); |
971 | fd_kill (EV_A_ fd); |
963 | return; |
972 | break; |
964 | } |
973 | } |
965 | } |
974 | } |
966 | |
975 | |
967 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
976 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
968 | static void noinline |
977 | static void noinline |
… | |
… | |
1058 | |
1067 | |
1059 | for (;;) |
1068 | for (;;) |
1060 | { |
1069 | { |
1061 | int c = k << 1; |
1070 | int c = k << 1; |
1062 | |
1071 | |
1063 | if (c > N + HEAP0 - 1) |
1072 | if (c >= N + HEAP0) |
1064 | break; |
1073 | break; |
1065 | |
1074 | |
1066 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
1075 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
1067 | ? 1 : 0; |
1076 | ? 1 : 0; |
1068 | |
1077 | |
… | |
… | |
1104 | |
1113 | |
1105 | /* move an element suitably so it is in a correct place */ |
1114 | /* move an element suitably so it is in a correct place */ |
1106 | inline_size void |
1115 | inline_size void |
1107 | adjustheap (ANHE *heap, int N, int k) |
1116 | adjustheap (ANHE *heap, int N, int k) |
1108 | { |
1117 | { |
1109 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
1118 | if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)])) |
1110 | upheap (heap, k); |
1119 | upheap (heap, k); |
1111 | else |
1120 | else |
1112 | downheap (heap, N, k); |
1121 | downheap (heap, N, k); |
1113 | } |
1122 | } |
1114 | |
1123 | |
… | |
… | |
1127 | /*****************************************************************************/ |
1136 | /*****************************************************************************/ |
1128 | |
1137 | |
1129 | /* associate signal watchers to a signal signal */ |
1138 | /* associate signal watchers to a signal signal */ |
1130 | typedef struct |
1139 | typedef struct |
1131 | { |
1140 | { |
|
|
1141 | EV_ATOMIC_T pending; |
1132 | #if EV_MULTIPLICITY |
1142 | #if EV_MULTIPLICITY |
1133 | EV_P; |
1143 | EV_P; |
1134 | #endif |
1144 | #endif |
1135 | WL head; |
1145 | WL head; |
1136 | EV_ATOMIC_T gotsig; |
|
|
1137 | } ANSIG; |
1146 | } ANSIG; |
1138 | |
1147 | |
1139 | static ANSIG signals [EV_NSIG - 1]; |
1148 | static ANSIG signals [EV_NSIG - 1]; |
1140 | static EV_ATOMIC_T gotsig; |
|
|
1141 | |
1149 | |
1142 | /*****************************************************************************/ |
1150 | /*****************************************************************************/ |
1143 | |
1151 | |
1144 | /* used to prepare libev internal fd's */ |
1152 | /* used to prepare libev internal fd's */ |
1145 | /* this is not fork-safe */ |
1153 | /* this is not fork-safe */ |
… | |
… | |
1213 | /* called whenever the libev signal pipe */ |
1221 | /* called whenever the libev signal pipe */ |
1214 | /* got some events (signal, async) */ |
1222 | /* got some events (signal, async) */ |
1215 | static void |
1223 | static void |
1216 | pipecb (EV_P_ ev_io *iow, int revents) |
1224 | pipecb (EV_P_ ev_io *iow, int revents) |
1217 | { |
1225 | { |
|
|
1226 | int i; |
|
|
1227 | |
1218 | #if EV_USE_EVENTFD |
1228 | #if EV_USE_EVENTFD |
1219 | if (evfd >= 0) |
1229 | if (evfd >= 0) |
1220 | { |
1230 | { |
1221 | uint64_t counter; |
1231 | uint64_t counter; |
1222 | read (evfd, &counter, sizeof (uint64_t)); |
1232 | read (evfd, &counter, sizeof (uint64_t)); |
… | |
… | |
1226 | { |
1236 | { |
1227 | char dummy; |
1237 | char dummy; |
1228 | read (evpipe [0], &dummy, 1); |
1238 | read (evpipe [0], &dummy, 1); |
1229 | } |
1239 | } |
1230 | |
1240 | |
1231 | if (gotsig && ev_is_default_loop (EV_A)) |
1241 | if (sig_pending) |
1232 | { |
1242 | { |
1233 | int signum; |
1243 | sig_pending = 0; |
1234 | gotsig = 0; |
|
|
1235 | |
1244 | |
1236 | for (signum = EV_NSIG - 1; signum--; ) |
1245 | for (i = EV_NSIG - 1; i--; ) |
1237 | if (signals [signum].gotsig) |
1246 | if (expect_false (signals [i].pending)) |
1238 | ev_feed_signal_event (EV_A_ signum + 1); |
1247 | ev_feed_signal_event (EV_A_ i + 1); |
1239 | } |
1248 | } |
1240 | |
1249 | |
1241 | #if EV_ASYNC_ENABLE |
1250 | #if EV_ASYNC_ENABLE |
1242 | if (gotasync) |
1251 | if (async_pending) |
1243 | { |
1252 | { |
1244 | int i; |
1253 | async_pending = 0; |
1245 | gotasync = 0; |
|
|
1246 | |
1254 | |
1247 | for (i = asynccnt; i--; ) |
1255 | for (i = asynccnt; i--; ) |
1248 | if (asyncs [i]->sent) |
1256 | if (asyncs [i]->sent) |
1249 | { |
1257 | { |
1250 | asyncs [i]->sent = 0; |
1258 | asyncs [i]->sent = 0; |
… | |
… | |
1265 | |
1273 | |
1266 | #if _WIN32 |
1274 | #if _WIN32 |
1267 | signal (signum, ev_sighandler); |
1275 | signal (signum, ev_sighandler); |
1268 | #endif |
1276 | #endif |
1269 | |
1277 | |
1270 | signals [signum - 1].gotsig = 1; |
1278 | signals [signum - 1].pending = 1; |
1271 | evpipe_write (EV_A_ &gotsig); |
1279 | evpipe_write (EV_A_ &sig_pending); |
1272 | } |
1280 | } |
1273 | |
1281 | |
1274 | void noinline |
1282 | void noinline |
1275 | ev_feed_signal_event (EV_P_ int signum) |
1283 | ev_feed_signal_event (EV_P_ int signum) |
1276 | { |
1284 | { |
1277 | WL w; |
1285 | WL w; |
1278 | |
1286 | |
|
|
1287 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
|
|
1288 | return; |
|
|
1289 | |
|
|
1290 | --signum; |
|
|
1291 | |
1279 | #if EV_MULTIPLICITY |
1292 | #if EV_MULTIPLICITY |
1280 | assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1293 | /* it is permissible to try to feed a signal to the wrong loop */ |
1281 | #endif |
1294 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
1282 | |
1295 | |
1283 | if (signum <= 0 || signum > EV_NSIG) |
1296 | if (expect_false (signals [signum].loop != EV_A)) |
1284 | return; |
1297 | return; |
|
|
1298 | #endif |
1285 | |
1299 | |
1286 | --signum; |
|
|
1287 | |
|
|
1288 | signals [signum].gotsig = 0; |
1300 | signals [signum].pending = 0; |
1289 | |
1301 | |
1290 | for (w = signals [signum].head; w; w = w->next) |
1302 | for (w = signals [signum].head; w; w = w->next) |
1291 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1303 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1292 | } |
1304 | } |
1293 | |
1305 | |
… | |
… | |
1560 | |
1572 | |
1561 | io_blocktime = 0.; |
1573 | io_blocktime = 0.; |
1562 | timeout_blocktime = 0.; |
1574 | timeout_blocktime = 0.; |
1563 | backend = 0; |
1575 | backend = 0; |
1564 | backend_fd = -1; |
1576 | backend_fd = -1; |
1565 | gotasync = 0; |
1577 | sig_pending = 0; |
|
|
1578 | #if EV_ASYNC_ENABLE |
|
|
1579 | async_pending = 0; |
|
|
1580 | #endif |
1566 | #if EV_USE_INOTIFY |
1581 | #if EV_USE_INOTIFY |
1567 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1582 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1568 | #endif |
1583 | #endif |
1569 | #if EV_USE_SIGNALFD |
1584 | #if EV_USE_SIGNALFD |
1570 | sigfd = flags & EVFLAG_NOSIGFD ? -1 : -2; |
1585 | sigfd = flags & EVFLAG_NOSIGFD ? -1 : -2; |
… | |
… | |
1612 | close (evfd); |
1627 | close (evfd); |
1613 | #endif |
1628 | #endif |
1614 | |
1629 | |
1615 | if (evpipe [0] >= 0) |
1630 | if (evpipe [0] >= 0) |
1616 | { |
1631 | { |
1617 | close (evpipe [0]); |
1632 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1618 | close (evpipe [1]); |
1633 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1619 | } |
1634 | } |
1620 | } |
1635 | } |
1621 | |
1636 | |
1622 | #if EV_USE_SIGNALFD |
1637 | #if EV_USE_SIGNALFD |
1623 | if (ev_is_active (&sigfd_w)) |
1638 | if (ev_is_active (&sigfd_w)) |
… | |
… | |
1704 | |
1719 | |
1705 | if (ev_is_active (&pipe_w)) |
1720 | if (ev_is_active (&pipe_w)) |
1706 | { |
1721 | { |
1707 | /* this "locks" the handlers against writing to the pipe */ |
1722 | /* this "locks" the handlers against writing to the pipe */ |
1708 | /* while we modify the fd vars */ |
1723 | /* while we modify the fd vars */ |
1709 | gotsig = 1; |
1724 | sig_pending = 1; |
1710 | #if EV_ASYNC_ENABLE |
1725 | #if EV_ASYNC_ENABLE |
1711 | gotasync = 1; |
1726 | async_pending = 1; |
1712 | #endif |
1727 | #endif |
1713 | |
1728 | |
1714 | ev_ref (EV_A); |
1729 | ev_ref (EV_A); |
1715 | ev_io_stop (EV_A_ &pipe_w); |
1730 | ev_io_stop (EV_A_ &pipe_w); |
1716 | |
1731 | |
… | |
… | |
1719 | close (evfd); |
1734 | close (evfd); |
1720 | #endif |
1735 | #endif |
1721 | |
1736 | |
1722 | if (evpipe [0] >= 0) |
1737 | if (evpipe [0] >= 0) |
1723 | { |
1738 | { |
1724 | close (evpipe [0]); |
1739 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1725 | close (evpipe [1]); |
1740 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1726 | } |
1741 | } |
1727 | |
1742 | |
1728 | evpipe_init (EV_A); |
1743 | evpipe_init (EV_A); |
1729 | /* now iterate over everything, in case we missed something */ |
1744 | /* now iterate over everything, in case we missed something */ |
1730 | pipecb (EV_A_ &pipe_w, EV_READ); |
1745 | pipecb (EV_A_ &pipe_w, EV_READ); |
… | |
… | |
1856 | assert (checkmax >= checkcnt); |
1871 | assert (checkmax >= checkcnt); |
1857 | array_verify (EV_A_ (W *)checks, checkcnt); |
1872 | array_verify (EV_A_ (W *)checks, checkcnt); |
1858 | |
1873 | |
1859 | # if 0 |
1874 | # if 0 |
1860 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1875 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1861 | for (signum = EV_NSIG; signum--; ) if (signals [signum].gotsig) |
1876 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
1862 | # endif |
1877 | # endif |
1863 | #endif |
1878 | #endif |
1864 | } |
1879 | } |
1865 | #endif |
1880 | #endif |
1866 | |
1881 | |
… | |
… | |
2393 | inline_size void |
2408 | inline_size void |
2394 | wlist_del (WL *head, WL elem) |
2409 | wlist_del (WL *head, WL elem) |
2395 | { |
2410 | { |
2396 | while (*head) |
2411 | while (*head) |
2397 | { |
2412 | { |
2398 | if (*head == elem) |
2413 | if (expect_true (*head == elem)) |
2399 | { |
2414 | { |
2400 | *head = elem->next; |
2415 | *head = elem->next; |
2401 | return; |
2416 | break; |
2402 | } |
2417 | } |
2403 | |
2418 | |
2404 | head = &(*head)->next; |
2419 | head = &(*head)->next; |
2405 | } |
2420 | } |
2406 | } |
2421 | } |
… | |
… | |
2666 | return; |
2681 | return; |
2667 | |
2682 | |
2668 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
2683 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
2669 | |
2684 | |
2670 | #if EV_MULTIPLICITY |
2685 | #if EV_MULTIPLICITY |
2671 | assert (("libev: tried to attach to a signal from two different loops", |
2686 | assert (("libev: a signal must not be attached to two different loops", |
2672 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
2687 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
2673 | |
2688 | |
2674 | signals [w->signum - 1].loop = EV_A; |
2689 | signals [w->signum - 1].loop = EV_A; |
2675 | #endif |
2690 | #endif |
2676 | |
2691 | |
… | |
… | |
2747 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2762 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2748 | ev_stop (EV_A_ (W)w); |
2763 | ev_stop (EV_A_ (W)w); |
2749 | |
2764 | |
2750 | if (!signals [w->signum - 1].head) |
2765 | if (!signals [w->signum - 1].head) |
2751 | { |
2766 | { |
2752 | #if EV_MULTIPLICITY |
2767 | #if EV_MULTIPLICITY |
2753 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
2768 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
2754 | #endif |
2769 | #endif |
2755 | #if EV_USE_SIGNALFD |
2770 | #if EV_USE_SIGNALFD |
2756 | if (sigfd >= 0) |
2771 | if (sigfd >= 0) |
2757 | { |
2772 | { |
2758 | sigprocmask (SIG_UNBLOCK, &sigfd_set, 0);//D |
2773 | sigprocmask (SIG_UNBLOCK, &sigfd_set, 0);//D |
2759 | sigdelset (&sigfd_set, w->signum); |
2774 | sigdelset (&sigfd_set, w->signum); |
2760 | signalfd (sigfd, &sigfd_set, 0); |
2775 | signalfd (sigfd, &sigfd_set, 0); |
2761 | sigprocmask (SIG_BLOCK, &sigfd_set, 0);//D |
2776 | sigprocmask (SIG_BLOCK, &sigfd_set, 0);//D |
2762 | /*TODO: maybe unblock signal? */ |
2777 | /*TODO: maybe unblock signal? */ |
2763 | } |
2778 | } |
2764 | else |
2779 | else |
2765 | #endif |
2780 | #endif |
2766 | signal (w->signum, SIG_DFL); |
2781 | signal (w->signum, SIG_DFL); |
2767 | } |
2782 | } |
2768 | |
2783 | |
2769 | EV_FREQUENT_CHECK; |
2784 | EV_FREQUENT_CHECK; |
2770 | } |
2785 | } |
… | |
… | |
2852 | } |
2867 | } |
2853 | } |
2868 | } |
2854 | |
2869 | |
2855 | if (w->wd >= 0) |
2870 | if (w->wd >= 0) |
2856 | { |
2871 | { |
|
|
2872 | struct statfs sfs; |
|
|
2873 | |
2857 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2874 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2858 | |
2875 | |
2859 | /* now local changes will be tracked by inotify, but remote changes won't */ |
2876 | /* now local changes will be tracked by inotify, but remote changes won't */ |
2860 | /* unless the filesystem it known to be local, we therefore still poll */ |
2877 | /* unless the filesystem it known to be local, we therefore still poll */ |
2861 | /* also do poll on <2.6.25, but with normal frequency */ |
2878 | /* also do poll on <2.6.25, but with normal frequency */ |
2862 | struct statfs sfs; |
|
|
2863 | |
2879 | |
2864 | if (fs_2625 && !statfs (w->path, &sfs)) |
2880 | if (fs_2625 && !statfs (w->path, &sfs)) |
2865 | if (sfs.f_type == 0x1373 /* devfs */ |
2881 | if (sfs.f_type == 0x1373 /* devfs */ |
2866 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
2882 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
2867 | || sfs.f_type == 0x3153464a /* jfs */ |
2883 | || sfs.f_type == 0x3153464a /* jfs */ |
… | |
… | |
3416 | |
3432 | |
3417 | void |
3433 | void |
3418 | ev_async_send (EV_P_ ev_async *w) |
3434 | ev_async_send (EV_P_ ev_async *w) |
3419 | { |
3435 | { |
3420 | w->sent = 1; |
3436 | w->sent = 1; |
3421 | evpipe_write (EV_A_ &gotasync); |
3437 | evpipe_write (EV_A_ &async_pending); |
3422 | } |
3438 | } |
3423 | #endif |
3439 | #endif |
3424 | |
3440 | |
3425 | /*****************************************************************************/ |
3441 | /*****************************************************************************/ |
3426 | |
3442 | |