… | |
… | |
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) |
… | |
… | |
958 | |
957 | |
959 | for (fd = anfdmax; fd--; ) |
958 | for (fd = anfdmax; fd--; ) |
960 | if (anfds [fd].events) |
959 | if (anfds [fd].events) |
961 | { |
960 | { |
962 | fd_kill (EV_A_ fd); |
961 | fd_kill (EV_A_ fd); |
963 | return; |
962 | break; |
964 | } |
963 | } |
965 | } |
964 | } |
966 | |
965 | |
967 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
966 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
968 | static void noinline |
967 | static void noinline |
… | |
… | |
1058 | |
1057 | |
1059 | for (;;) |
1058 | for (;;) |
1060 | { |
1059 | { |
1061 | int c = k << 1; |
1060 | int c = k << 1; |
1062 | |
1061 | |
1063 | if (c > N + HEAP0 - 1) |
1062 | if (c >= N + HEAP0) |
1064 | break; |
1063 | break; |
1065 | |
1064 | |
1066 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
1065 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
1067 | ? 1 : 0; |
1066 | ? 1 : 0; |
1068 | |
1067 | |
… | |
… | |
1127 | /*****************************************************************************/ |
1126 | /*****************************************************************************/ |
1128 | |
1127 | |
1129 | /* associate signal watchers to a signal signal */ |
1128 | /* associate signal watchers to a signal signal */ |
1130 | typedef struct |
1129 | typedef struct |
1131 | { |
1130 | { |
|
|
1131 | EV_ATOMIC_T pending; |
1132 | #if EV_MULTIPLICITY |
1132 | #if EV_MULTIPLICITY |
1133 | EV_P; |
1133 | EV_P; |
1134 | #endif |
1134 | #endif |
1135 | WL head; |
1135 | WL head; |
1136 | EV_ATOMIC_T gotsig; |
|
|
1137 | } ANSIG; |
1136 | } ANSIG; |
1138 | |
1137 | |
1139 | static ANSIG signals [EV_NSIG - 1]; |
1138 | static ANSIG signals [EV_NSIG - 1]; |
1140 | static EV_ATOMIC_T gotsig; |
|
|
1141 | |
1139 | |
1142 | /*****************************************************************************/ |
1140 | /*****************************************************************************/ |
1143 | |
1141 | |
1144 | /* used to prepare libev internal fd's */ |
1142 | /* used to prepare libev internal fd's */ |
1145 | /* this is not fork-safe */ |
1143 | /* this is not fork-safe */ |
… | |
… | |
1213 | /* called whenever the libev signal pipe */ |
1211 | /* called whenever the libev signal pipe */ |
1214 | /* got some events (signal, async) */ |
1212 | /* got some events (signal, async) */ |
1215 | static void |
1213 | static void |
1216 | pipecb (EV_P_ ev_io *iow, int revents) |
1214 | pipecb (EV_P_ ev_io *iow, int revents) |
1217 | { |
1215 | { |
|
|
1216 | int i; |
|
|
1217 | |
1218 | #if EV_USE_EVENTFD |
1218 | #if EV_USE_EVENTFD |
1219 | if (evfd >= 0) |
1219 | if (evfd >= 0) |
1220 | { |
1220 | { |
1221 | uint64_t counter; |
1221 | uint64_t counter; |
1222 | read (evfd, &counter, sizeof (uint64_t)); |
1222 | read (evfd, &counter, sizeof (uint64_t)); |
… | |
… | |
1226 | { |
1226 | { |
1227 | char dummy; |
1227 | char dummy; |
1228 | read (evpipe [0], &dummy, 1); |
1228 | read (evpipe [0], &dummy, 1); |
1229 | } |
1229 | } |
1230 | |
1230 | |
1231 | if (gotsig && ev_is_default_loop (EV_A)) |
1231 | if (sig_pending) |
1232 | { |
1232 | { |
1233 | int signum; |
1233 | sig_pending = 0; |
1234 | gotsig = 0; |
|
|
1235 | |
1234 | |
1236 | for (signum = EV_NSIG - 1; signum--; ) |
1235 | for (i = EV_NSIG - 1; i--; ) |
1237 | if (signals [signum].gotsig) |
1236 | if (expect_false (signals [i].pending)) |
1238 | ev_feed_signal_event (EV_A_ signum + 1); |
1237 | ev_feed_signal_event (EV_A_ i + 1); |
1239 | } |
1238 | } |
1240 | |
1239 | |
1241 | #if EV_ASYNC_ENABLE |
1240 | #if EV_ASYNC_ENABLE |
1242 | if (gotasync) |
1241 | if (async_pending) |
1243 | { |
1242 | { |
1244 | int i; |
1243 | async_pending = 0; |
1245 | gotasync = 0; |
|
|
1246 | |
1244 | |
1247 | for (i = asynccnt; i--; ) |
1245 | for (i = asynccnt; i--; ) |
1248 | if (asyncs [i]->sent) |
1246 | if (asyncs [i]->sent) |
1249 | { |
1247 | { |
1250 | asyncs [i]->sent = 0; |
1248 | asyncs [i]->sent = 0; |
… | |
… | |
1265 | |
1263 | |
1266 | #if _WIN32 |
1264 | #if _WIN32 |
1267 | signal (signum, ev_sighandler); |
1265 | signal (signum, ev_sighandler); |
1268 | #endif |
1266 | #endif |
1269 | |
1267 | |
1270 | signals [signum - 1].gotsig = 1; |
1268 | signals [signum - 1].pending = 1; |
1271 | evpipe_write (EV_A_ &gotsig); |
1269 | evpipe_write (EV_A_ &sig_pending); |
1272 | } |
1270 | } |
1273 | |
1271 | |
1274 | void noinline |
1272 | void noinline |
1275 | ev_feed_signal_event (EV_P_ int signum) |
1273 | ev_feed_signal_event (EV_P_ int signum) |
1276 | { |
1274 | { |
1277 | WL w; |
1275 | WL w; |
1278 | |
1276 | |
|
|
1277 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
|
|
1278 | return; |
|
|
1279 | |
|
|
1280 | --signum; |
|
|
1281 | |
1279 | #if EV_MULTIPLICITY |
1282 | #if EV_MULTIPLICITY |
1280 | assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1283 | /* it is permissible to try to feed a signal to the wrong loop */ |
1281 | #endif |
1284 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
1282 | |
1285 | |
1283 | if (signum <= 0 || signum > EV_NSIG) |
1286 | if (expect_false (signals [signum].loop != EV_A)) |
1284 | return; |
1287 | return; |
|
|
1288 | #endif |
1285 | |
1289 | |
1286 | --signum; |
|
|
1287 | |
|
|
1288 | signals [signum].gotsig = 0; |
1290 | signals [signum].pending = 0; |
1289 | |
1291 | |
1290 | for (w = signals [signum].head; w; w = w->next) |
1292 | for (w = signals [signum].head; w; w = w->next) |
1291 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1293 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1292 | } |
1294 | } |
1293 | |
1295 | |
… | |
… | |
1560 | |
1562 | |
1561 | io_blocktime = 0.; |
1563 | io_blocktime = 0.; |
1562 | timeout_blocktime = 0.; |
1564 | timeout_blocktime = 0.; |
1563 | backend = 0; |
1565 | backend = 0; |
1564 | backend_fd = -1; |
1566 | backend_fd = -1; |
1565 | gotasync = 0; |
1567 | sig_pending = 0; |
|
|
1568 | #if EV_ASYNC_ENABLE |
|
|
1569 | async_pending = 0; |
|
|
1570 | #endif |
1566 | #if EV_USE_INOTIFY |
1571 | #if EV_USE_INOTIFY |
1567 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1572 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1568 | #endif |
1573 | #endif |
1569 | #if EV_USE_SIGNALFD |
1574 | #if EV_USE_SIGNALFD |
1570 | sigfd = flags & EVFLAG_NOSIGFD ? -1 : -2; |
1575 | sigfd = flags & EVFLAG_NOSIGFD ? -1 : -2; |
… | |
… | |
1704 | |
1709 | |
1705 | if (ev_is_active (&pipe_w)) |
1710 | if (ev_is_active (&pipe_w)) |
1706 | { |
1711 | { |
1707 | /* this "locks" the handlers against writing to the pipe */ |
1712 | /* this "locks" the handlers against writing to the pipe */ |
1708 | /* while we modify the fd vars */ |
1713 | /* while we modify the fd vars */ |
1709 | gotsig = 1; |
1714 | sig_pending = 1; |
1710 | #if EV_ASYNC_ENABLE |
1715 | #if EV_ASYNC_ENABLE |
1711 | gotasync = 1; |
1716 | async_pending = 1; |
1712 | #endif |
1717 | #endif |
1713 | |
1718 | |
1714 | ev_ref (EV_A); |
1719 | ev_ref (EV_A); |
1715 | ev_io_stop (EV_A_ &pipe_w); |
1720 | ev_io_stop (EV_A_ &pipe_w); |
1716 | |
1721 | |
… | |
… | |
1856 | assert (checkmax >= checkcnt); |
1861 | assert (checkmax >= checkcnt); |
1857 | array_verify (EV_A_ (W *)checks, checkcnt); |
1862 | array_verify (EV_A_ (W *)checks, checkcnt); |
1858 | |
1863 | |
1859 | # if 0 |
1864 | # if 0 |
1860 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1865 | 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) |
1866 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
1862 | # endif |
1867 | # endif |
1863 | #endif |
1868 | #endif |
1864 | } |
1869 | } |
1865 | #endif |
1870 | #endif |
1866 | |
1871 | |
… | |
… | |
2393 | inline_size void |
2398 | inline_size void |
2394 | wlist_del (WL *head, WL elem) |
2399 | wlist_del (WL *head, WL elem) |
2395 | { |
2400 | { |
2396 | while (*head) |
2401 | while (*head) |
2397 | { |
2402 | { |
2398 | if (*head == elem) |
2403 | if (expect_true (*head == elem)) |
2399 | { |
2404 | { |
2400 | *head = elem->next; |
2405 | *head = elem->next; |
2401 | return; |
2406 | break; |
2402 | } |
2407 | } |
2403 | |
2408 | |
2404 | head = &(*head)->next; |
2409 | head = &(*head)->next; |
2405 | } |
2410 | } |
2406 | } |
2411 | } |
… | |
… | |
2666 | return; |
2671 | return; |
2667 | |
2672 | |
2668 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
2673 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
2669 | |
2674 | |
2670 | #if EV_MULTIPLICITY |
2675 | #if EV_MULTIPLICITY |
2671 | assert (("libev: tried to attach to a signal from two different loops", |
2676 | assert (("libev: a signal must not be attached to two different loops", |
2672 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
2677 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
2673 | |
2678 | |
2674 | signals [w->signum - 1].loop = EV_A; |
2679 | signals [w->signum - 1].loop = EV_A; |
2675 | #endif |
2680 | #endif |
2676 | |
2681 | |
… | |
… | |
2747 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2752 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2748 | ev_stop (EV_A_ (W)w); |
2753 | ev_stop (EV_A_ (W)w); |
2749 | |
2754 | |
2750 | if (!signals [w->signum - 1].head) |
2755 | if (!signals [w->signum - 1].head) |
2751 | { |
2756 | { |
2752 | #if EV_MULTIPLICITY |
2757 | #if EV_MULTIPLICITY |
2753 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
2758 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
2754 | #endif |
2759 | #endif |
2755 | #if EV_USE_SIGNALFD |
2760 | #if EV_USE_SIGNALFD |
2756 | if (sigfd >= 0) |
2761 | if (sigfd >= 0) |
2757 | { |
2762 | { |
2758 | sigprocmask (SIG_UNBLOCK, &sigfd_set, 0);//D |
2763 | sigprocmask (SIG_UNBLOCK, &sigfd_set, 0);//D |
2759 | sigdelset (&sigfd_set, w->signum); |
2764 | sigdelset (&sigfd_set, w->signum); |
2760 | signalfd (sigfd, &sigfd_set, 0); |
2765 | signalfd (sigfd, &sigfd_set, 0); |
2761 | sigprocmask (SIG_BLOCK, &sigfd_set, 0);//D |
2766 | sigprocmask (SIG_BLOCK, &sigfd_set, 0);//D |
2762 | /*TODO: maybe unblock signal? */ |
2767 | /*TODO: maybe unblock signal? */ |
2763 | } |
2768 | } |
2764 | else |
2769 | else |
2765 | #endif |
2770 | #endif |
2766 | signal (w->signum, SIG_DFL); |
2771 | signal (w->signum, SIG_DFL); |
2767 | } |
2772 | } |
2768 | |
2773 | |
2769 | EV_FREQUENT_CHECK; |
2774 | EV_FREQUENT_CHECK; |
2770 | } |
2775 | } |
… | |
… | |
3416 | |
3421 | |
3417 | void |
3422 | void |
3418 | ev_async_send (EV_P_ ev_async *w) |
3423 | ev_async_send (EV_P_ ev_async *w) |
3419 | { |
3424 | { |
3420 | w->sent = 1; |
3425 | w->sent = 1; |
3421 | evpipe_write (EV_A_ &gotasync); |
3426 | evpipe_write (EV_A_ &async_pending); |
3422 | } |
3427 | } |
3423 | #endif |
3428 | #endif |
3424 | |
3429 | |
3425 | /*****************************************************************************/ |
3430 | /*****************************************************************************/ |
3426 | |
3431 | |