… | |
… | |
897 | postfork = 1; |
897 | postfork = 1; |
898 | } |
898 | } |
899 | |
899 | |
900 | /*****************************************************************************/ |
900 | /*****************************************************************************/ |
901 | |
901 | |
|
|
902 | static int |
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|
903 | any_pending (EV_P) |
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|
904 | { |
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|
905 | int pri; |
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|
906 | |
|
|
907 | for (pri = NUMPRI; pri--; ) |
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|
908 | if (pendingcnt [pri]) |
|
|
909 | return 1; |
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|
910 | |
|
|
911 | return 0; |
|
|
912 | } |
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|
913 | |
902 | static void |
914 | static void |
903 | call_pending (EV_P) |
915 | call_pending (EV_P) |
904 | { |
916 | { |
905 | int pri; |
917 | int pri; |
906 | |
918 | |
… | |
… | |
948 | struct ev_periodic *w = periodics [0]; |
960 | struct ev_periodic *w = periodics [0]; |
949 | |
961 | |
950 | assert (("inactive timer on periodic heap detected", ev_is_active (w))); |
962 | assert (("inactive timer on periodic heap detected", ev_is_active (w))); |
951 | |
963 | |
952 | /* first reschedule or stop timer */ |
964 | /* first reschedule or stop timer */ |
|
|
965 | if (w->reschedule_cb) |
|
|
966 | { |
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|
967 | ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, rt_now + 0.0001); |
|
|
968 | |
|
|
969 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > rt_now)); |
|
|
970 | downheap ((WT *)periodics, periodiccnt, 0); |
|
|
971 | } |
953 | if (w->interval) |
972 | else if (w->interval) |
954 | { |
973 | { |
955 | ((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
974 | ((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
956 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now)); |
975 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now)); |
957 | downheap ((WT *)periodics, periodiccnt, 0); |
976 | downheap ((WT *)periodics, periodiccnt, 0); |
958 | } |
977 | } |
… | |
… | |
971 | /* adjust periodics after time jump */ |
990 | /* adjust periodics after time jump */ |
972 | for (i = 0; i < periodiccnt; ++i) |
991 | for (i = 0; i < periodiccnt; ++i) |
973 | { |
992 | { |
974 | struct ev_periodic *w = periodics [i]; |
993 | struct ev_periodic *w = periodics [i]; |
975 | |
994 | |
|
|
995 | if (w->reschedule_cb) |
|
|
996 | ((WT)w)->at = w->reschedule_cb (w, rt_now); |
976 | if (w->interval) |
997 | else if (w->interval) |
977 | { |
|
|
978 | ev_tstamp diff = ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval; |
998 | ((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval; |
979 | |
|
|
980 | if (fabs (diff) >= 1e-4) |
|
|
981 | { |
|
|
982 | ev_periodic_stop (EV_A_ w); |
|
|
983 | ev_periodic_start (EV_A_ w); |
|
|
984 | |
|
|
985 | i = 0; /* restart loop, inefficient, but time jumps should be rare */ |
|
|
986 | } |
|
|
987 | } |
|
|
988 | } |
999 | } |
|
|
1000 | |
|
|
1001 | /* now rebuild the heap */ |
|
|
1002 | for (i = periodiccnt >> 1; i--; ) |
|
|
1003 | downheap ((WT *)periodics, periodiccnt, i); |
989 | } |
1004 | } |
990 | |
1005 | |
991 | inline int |
1006 | inline int |
992 | time_update_monotonic (EV_P) |
1007 | time_update_monotonic (EV_P) |
993 | { |
1008 | { |
… | |
… | |
1089 | /* update fd-related kernel structures */ |
1104 | /* update fd-related kernel structures */ |
1090 | fd_reify (EV_A); |
1105 | fd_reify (EV_A); |
1091 | |
1106 | |
1092 | /* calculate blocking time */ |
1107 | /* calculate blocking time */ |
1093 | |
1108 | |
1094 | /* we only need this for !monotonic clockor timers, but as we basically |
1109 | /* we only need this for !monotonic clock or timers, but as we basically |
1095 | always have timers, we just calculate it always */ |
1110 | always have timers, we just calculate it always */ |
1096 | #if EV_USE_MONOTONIC |
1111 | #if EV_USE_MONOTONIC |
1097 | if (expect_true (have_monotonic)) |
1112 | if (expect_true (have_monotonic)) |
1098 | time_update_monotonic (EV_A); |
1113 | time_update_monotonic (EV_A); |
1099 | else |
1114 | else |
… | |
… | |
1132 | /* queue pending timers and reschedule them */ |
1147 | /* queue pending timers and reschedule them */ |
1133 | timers_reify (EV_A); /* relative timers called last */ |
1148 | timers_reify (EV_A); /* relative timers called last */ |
1134 | periodics_reify (EV_A); /* absolute timers called first */ |
1149 | periodics_reify (EV_A); /* absolute timers called first */ |
1135 | |
1150 | |
1136 | /* queue idle watchers unless io or timers are pending */ |
1151 | /* queue idle watchers unless io or timers are pending */ |
1137 | if (!pendingcnt) |
1152 | if (idlecnt && !any_pending (EV_A)) |
1138 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
1153 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
1139 | |
1154 | |
1140 | /* queue check watchers, to be executed first */ |
1155 | /* queue check watchers, to be executed first */ |
1141 | if (checkcnt) |
1156 | if (checkcnt) |
1142 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1157 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
… | |
… | |
1297 | ev_periodic_start (EV_P_ struct ev_periodic *w) |
1312 | ev_periodic_start (EV_P_ struct ev_periodic *w) |
1298 | { |
1313 | { |
1299 | if (ev_is_active (w)) |
1314 | if (ev_is_active (w)) |
1300 | return; |
1315 | return; |
1301 | |
1316 | |
|
|
1317 | if (w->reschedule_cb) |
|
|
1318 | ((WT)w)->at = w->reschedule_cb (w, rt_now); |
|
|
1319 | else if (w->interval) |
|
|
1320 | { |
1302 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1321 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1303 | |
|
|
1304 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1322 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1305 | if (w->interval) |
|
|
1306 | ((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1323 | ((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval; |
|
|
1324 | } |
1307 | |
1325 | |
1308 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1326 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1309 | array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void)); |
1327 | array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void)); |
1310 | periodics [periodiccnt - 1] = w; |
1328 | periodics [periodiccnt - 1] = w; |
1311 | upheap ((WT *)periodics, periodiccnt - 1); |
1329 | upheap ((WT *)periodics, periodiccnt - 1); |
… | |
… | |
1327 | periodics [((W)w)->active - 1] = periodics [periodiccnt]; |
1345 | periodics [((W)w)->active - 1] = periodics [periodiccnt]; |
1328 | downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); |
1346 | downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); |
1329 | } |
1347 | } |
1330 | |
1348 | |
1331 | ev_stop (EV_A_ (W)w); |
1349 | ev_stop (EV_A_ (W)w); |
|
|
1350 | } |
|
|
1351 | |
|
|
1352 | void |
|
|
1353 | ev_periodic_again (EV_P_ struct ev_periodic *w) |
|
|
1354 | { |
|
|
1355 | ev_periodic_stop (EV_A_ w); |
|
|
1356 | ev_periodic_start (EV_A_ w); |
1332 | } |
1357 | } |
1333 | |
1358 | |
1334 | void |
1359 | void |
1335 | ev_idle_start (EV_P_ struct ev_idle *w) |
1360 | ev_idle_start (EV_P_ struct ev_idle *w) |
1336 | { |
1361 | { |