… | |
… | |
221 | |
221 | |
222 | #if EV_MULTIPLICITY |
222 | #if EV_MULTIPLICITY |
223 | |
223 | |
224 | struct ev_loop |
224 | struct ev_loop |
225 | { |
225 | { |
|
|
226 | ev_tstamp ev_rt_now; |
226 | #define VAR(name,decl) decl; |
227 | #define VAR(name,decl) decl; |
227 | #include "ev_vars.h" |
228 | #include "ev_vars.h" |
228 | #undef VAR |
229 | #undef VAR |
229 | }; |
230 | }; |
230 | #include "ev_wrap.h" |
231 | #include "ev_wrap.h" |
… | |
… | |
232 | struct ev_loop default_loop_struct; |
233 | struct ev_loop default_loop_struct; |
233 | static struct ev_loop *default_loop; |
234 | static struct ev_loop *default_loop; |
234 | |
235 | |
235 | #else |
236 | #else |
236 | |
237 | |
|
|
238 | ev_tstamp ev_rt_now; |
237 | #define VAR(name,decl) static decl; |
239 | #define VAR(name,decl) static decl; |
238 | #include "ev_vars.h" |
240 | #include "ev_vars.h" |
239 | #undef VAR |
241 | #undef VAR |
240 | |
242 | |
241 | static int default_loop; |
243 | static int default_loop; |
… | |
… | |
271 | #endif |
273 | #endif |
272 | |
274 | |
273 | return ev_time (); |
275 | return ev_time (); |
274 | } |
276 | } |
275 | |
277 | |
|
|
278 | #if EV_MULTIPLICITY |
276 | ev_tstamp |
279 | ev_tstamp |
277 | ev_now (EV_P) |
280 | ev_now (EV_P) |
278 | { |
281 | { |
279 | return rt_now; |
282 | return ev_rt_now; |
280 | } |
283 | } |
|
|
284 | #endif |
281 | |
285 | |
282 | #define array_roundsize(type,n) ((n) | 4 & ~3) |
286 | #define array_roundsize(type,n) ((n) | 4 & ~3) |
283 | |
287 | |
284 | #define array_needsize(type,base,cur,cnt,init) \ |
288 | #define array_needsize(type,base,cur,cnt,init) \ |
285 | if (expect_false ((cnt) > cur)) \ |
289 | if (expect_false ((cnt) > cur)) \ |
… | |
… | |
518 | |
522 | |
519 | heap [k] = w; |
523 | heap [k] = w; |
520 | ((W)heap [k])->active = k + 1; |
524 | ((W)heap [k])->active = k + 1; |
521 | } |
525 | } |
522 | |
526 | |
|
|
527 | inline void |
|
|
528 | adjustheap (WT *heap, int N, int k, ev_tstamp at) |
|
|
529 | { |
|
|
530 | ev_tstamp old_at = heap [k]->at; |
|
|
531 | heap [k]->at = at; |
|
|
532 | |
|
|
533 | if (old_at < at) |
|
|
534 | downheap (heap, N, k); |
|
|
535 | else |
|
|
536 | upheap (heap, k); |
|
|
537 | } |
|
|
538 | |
523 | /*****************************************************************************/ |
539 | /*****************************************************************************/ |
524 | |
540 | |
525 | typedef struct |
541 | typedef struct |
526 | { |
542 | { |
527 | WL head; |
543 | WL head; |
… | |
… | |
723 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
739 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
724 | have_monotonic = 1; |
740 | have_monotonic = 1; |
725 | } |
741 | } |
726 | #endif |
742 | #endif |
727 | |
743 | |
728 | rt_now = ev_time (); |
744 | ev_rt_now = ev_time (); |
729 | mn_now = get_clock (); |
745 | mn_now = get_clock (); |
730 | now_floor = mn_now; |
746 | now_floor = mn_now; |
731 | rtmn_diff = rt_now - mn_now; |
747 | rtmn_diff = ev_rt_now - mn_now; |
732 | |
748 | |
733 | if (methods == EVMETHOD_AUTO) |
749 | if (methods == EVMETHOD_AUTO) |
734 | if (!enable_secure () && getenv ("LIBEV_METHODS")) |
750 | if (!enable_secure () && getenv ("LIBEV_METHODS")) |
735 | methods = atoi (getenv ("LIBEV_METHODS")); |
751 | methods = atoi (getenv ("LIBEV_METHODS")); |
736 | else |
752 | else |
… | |
… | |
751 | #endif |
767 | #endif |
752 | #if EV_USE_SELECT |
768 | #if EV_USE_SELECT |
753 | if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods); |
769 | if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods); |
754 | #endif |
770 | #endif |
755 | |
771 | |
756 | ev_watcher_init (&sigev, sigcb); |
772 | ev_init (&sigev, sigcb); |
757 | ev_set_priority (&sigev, EV_MAXPRI); |
773 | ev_set_priority (&sigev, EV_MAXPRI); |
758 | } |
774 | } |
759 | } |
775 | } |
760 | |
776 | |
761 | void |
777 | void |
… | |
… | |
979 | } |
995 | } |
980 | |
996 | |
981 | static void |
997 | static void |
982 | periodics_reify (EV_P) |
998 | periodics_reify (EV_P) |
983 | { |
999 | { |
984 | while (periodiccnt && ((WT)periodics [0])->at <= rt_now) |
1000 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
985 | { |
1001 | { |
986 | struct ev_periodic *w = periodics [0]; |
1002 | struct ev_periodic *w = periodics [0]; |
987 | |
1003 | |
988 | assert (("inactive timer on periodic heap detected", ev_is_active (w))); |
1004 | assert (("inactive timer on periodic heap detected", ev_is_active (w))); |
989 | |
1005 | |
990 | /* first reschedule or stop timer */ |
1006 | /* first reschedule or stop timer */ |
991 | if (w->reschedule_cb) |
1007 | if (w->reschedule_cb) |
992 | { |
1008 | { |
993 | ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, rt_now + 0.0001); |
1009 | ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); |
994 | |
1010 | |
995 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > rt_now)); |
1011 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
996 | downheap ((WT *)periodics, periodiccnt, 0); |
1012 | downheap ((WT *)periodics, periodiccnt, 0); |
997 | } |
1013 | } |
998 | else if (w->interval) |
1014 | else if (w->interval) |
999 | { |
1015 | { |
1000 | ((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
1016 | ((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
1001 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now)); |
1017 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
1002 | downheap ((WT *)periodics, periodiccnt, 0); |
1018 | downheap ((WT *)periodics, periodiccnt, 0); |
1003 | } |
1019 | } |
1004 | else |
1020 | else |
1005 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1021 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1006 | |
1022 | |
… | |
… | |
1017 | for (i = 0; i < periodiccnt; ++i) |
1033 | for (i = 0; i < periodiccnt; ++i) |
1018 | { |
1034 | { |
1019 | struct ev_periodic *w = periodics [i]; |
1035 | struct ev_periodic *w = periodics [i]; |
1020 | |
1036 | |
1021 | if (w->reschedule_cb) |
1037 | if (w->reschedule_cb) |
1022 | ((WT)w)->at = w->reschedule_cb (w, rt_now); |
1038 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1023 | else if (w->interval) |
1039 | else if (w->interval) |
1024 | ((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1040 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1025 | } |
1041 | } |
1026 | |
1042 | |
1027 | /* now rebuild the heap */ |
1043 | /* now rebuild the heap */ |
1028 | for (i = periodiccnt >> 1; i--; ) |
1044 | for (i = periodiccnt >> 1; i--; ) |
1029 | downheap ((WT *)periodics, periodiccnt, i); |
1045 | downheap ((WT *)periodics, periodiccnt, i); |
… | |
… | |
1034 | { |
1050 | { |
1035 | mn_now = get_clock (); |
1051 | mn_now = get_clock (); |
1036 | |
1052 | |
1037 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1053 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1038 | { |
1054 | { |
1039 | rt_now = rtmn_diff + mn_now; |
1055 | ev_rt_now = rtmn_diff + mn_now; |
1040 | return 0; |
1056 | return 0; |
1041 | } |
1057 | } |
1042 | else |
1058 | else |
1043 | { |
1059 | { |
1044 | now_floor = mn_now; |
1060 | now_floor = mn_now; |
1045 | rt_now = ev_time (); |
1061 | ev_rt_now = ev_time (); |
1046 | return 1; |
1062 | return 1; |
1047 | } |
1063 | } |
1048 | } |
1064 | } |
1049 | |
1065 | |
1050 | static void |
1066 | static void |
… | |
… | |
1059 | { |
1075 | { |
1060 | ev_tstamp odiff = rtmn_diff; |
1076 | ev_tstamp odiff = rtmn_diff; |
1061 | |
1077 | |
1062 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
1078 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
1063 | { |
1079 | { |
1064 | rtmn_diff = rt_now - mn_now; |
1080 | rtmn_diff = ev_rt_now - mn_now; |
1065 | |
1081 | |
1066 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1082 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1067 | return; /* all is well */ |
1083 | return; /* all is well */ |
1068 | |
1084 | |
1069 | rt_now = ev_time (); |
1085 | ev_rt_now = ev_time (); |
1070 | mn_now = get_clock (); |
1086 | mn_now = get_clock (); |
1071 | now_floor = mn_now; |
1087 | now_floor = mn_now; |
1072 | } |
1088 | } |
1073 | |
1089 | |
1074 | periodics_reschedule (EV_A); |
1090 | periodics_reschedule (EV_A); |
… | |
… | |
1077 | } |
1093 | } |
1078 | } |
1094 | } |
1079 | else |
1095 | else |
1080 | #endif |
1096 | #endif |
1081 | { |
1097 | { |
1082 | rt_now = ev_time (); |
1098 | ev_rt_now = ev_time (); |
1083 | |
1099 | |
1084 | if (expect_false (mn_now > rt_now || mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
1100 | if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
1085 | { |
1101 | { |
1086 | periodics_reschedule (EV_A); |
1102 | periodics_reschedule (EV_A); |
1087 | |
1103 | |
1088 | /* adjust timers. this is easy, as the offset is the same for all */ |
1104 | /* adjust timers. this is easy, as the offset is the same for all */ |
1089 | for (i = 0; i < timercnt; ++i) |
1105 | for (i = 0; i < timercnt; ++i) |
1090 | ((WT)timers [i])->at += rt_now - mn_now; |
1106 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
1091 | } |
1107 | } |
1092 | |
1108 | |
1093 | mn_now = rt_now; |
1109 | mn_now = ev_rt_now; |
1094 | } |
1110 | } |
1095 | } |
1111 | } |
1096 | |
1112 | |
1097 | void |
1113 | void |
1098 | ev_ref (EV_P) |
1114 | ev_ref (EV_P) |
… | |
… | |
1138 | if (expect_true (have_monotonic)) |
1154 | if (expect_true (have_monotonic)) |
1139 | time_update_monotonic (EV_A); |
1155 | time_update_monotonic (EV_A); |
1140 | else |
1156 | else |
1141 | #endif |
1157 | #endif |
1142 | { |
1158 | { |
1143 | rt_now = ev_time (); |
1159 | ev_rt_now = ev_time (); |
1144 | mn_now = rt_now; |
1160 | mn_now = ev_rt_now; |
1145 | } |
1161 | } |
1146 | |
1162 | |
1147 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
1163 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
1148 | block = 0.; |
1164 | block = 0.; |
1149 | else |
1165 | else |
… | |
… | |
1156 | if (block > to) block = to; |
1172 | if (block > to) block = to; |
1157 | } |
1173 | } |
1158 | |
1174 | |
1159 | if (periodiccnt) |
1175 | if (periodiccnt) |
1160 | { |
1176 | { |
1161 | ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge; |
1177 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge; |
1162 | if (block > to) block = to; |
1178 | if (block > to) block = to; |
1163 | } |
1179 | } |
1164 | |
1180 | |
1165 | if (block < 0.) block = 0.; |
1181 | if (block < 0.) block = 0.; |
1166 | } |
1182 | } |
1167 | |
1183 | |
1168 | method_poll (EV_A_ block); |
1184 | method_poll (EV_A_ block); |
1169 | |
1185 | |
1170 | /* update rt_now, do magic */ |
1186 | /* update ev_rt_now, do magic */ |
1171 | time_update (EV_A); |
1187 | time_update (EV_A); |
1172 | |
1188 | |
1173 | /* queue pending timers and reschedule them */ |
1189 | /* queue pending timers and reschedule them */ |
1174 | timers_reify (EV_A); /* relative timers called last */ |
1190 | timers_reify (EV_A); /* relative timers called last */ |
1175 | periodics_reify (EV_A); /* absolute timers called first */ |
1191 | periodics_reify (EV_A); /* absolute timers called first */ |
… | |
… | |
1321 | ev_timer_again (EV_P_ struct ev_timer *w) |
1337 | ev_timer_again (EV_P_ struct ev_timer *w) |
1322 | { |
1338 | { |
1323 | if (ev_is_active (w)) |
1339 | if (ev_is_active (w)) |
1324 | { |
1340 | { |
1325 | if (w->repeat) |
1341 | if (w->repeat) |
1326 | { |
|
|
1327 | ((WT)w)->at = mn_now + w->repeat; |
|
|
1328 | downheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1342 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1, mn_now + w->repeat); |
1329 | } |
|
|
1330 | else |
1343 | else |
1331 | ev_timer_stop (EV_A_ w); |
1344 | ev_timer_stop (EV_A_ w); |
1332 | } |
1345 | } |
1333 | else if (w->repeat) |
1346 | else if (w->repeat) |
1334 | ev_timer_start (EV_A_ w); |
1347 | ev_timer_start (EV_A_ w); |
… | |
… | |
1339 | { |
1352 | { |
1340 | if (ev_is_active (w)) |
1353 | if (ev_is_active (w)) |
1341 | return; |
1354 | return; |
1342 | |
1355 | |
1343 | if (w->reschedule_cb) |
1356 | if (w->reschedule_cb) |
1344 | ((WT)w)->at = w->reschedule_cb (w, rt_now); |
1357 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1345 | else if (w->interval) |
1358 | else if (w->interval) |
1346 | { |
1359 | { |
1347 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1360 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1348 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1361 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1349 | ((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1362 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1350 | } |
1363 | } |
1351 | |
1364 | |
1352 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1365 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1353 | array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void)); |
1366 | array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void)); |
1354 | periodics [periodiccnt - 1] = w; |
1367 | periodics [periodiccnt - 1] = w; |
… | |
… | |
1376 | } |
1389 | } |
1377 | |
1390 | |
1378 | void |
1391 | void |
1379 | ev_periodic_again (EV_P_ struct ev_periodic *w) |
1392 | ev_periodic_again (EV_P_ struct ev_periodic *w) |
1380 | { |
1393 | { |
|
|
1394 | /* TODO: use adjustheap and recalculation */ |
1381 | ev_periodic_stop (EV_A_ w); |
1395 | ev_periodic_stop (EV_A_ w); |
1382 | ev_periodic_start (EV_A_ w); |
1396 | ev_periodic_start (EV_A_ w); |
1383 | } |
1397 | } |
1384 | |
1398 | |
1385 | void |
1399 | void |
… | |
… | |
1564 | else |
1578 | else |
1565 | { |
1579 | { |
1566 | once->cb = cb; |
1580 | once->cb = cb; |
1567 | once->arg = arg; |
1581 | once->arg = arg; |
1568 | |
1582 | |
1569 | ev_watcher_init (&once->io, once_cb_io); |
1583 | ev_init (&once->io, once_cb_io); |
1570 | if (fd >= 0) |
1584 | if (fd >= 0) |
1571 | { |
1585 | { |
1572 | ev_io_set (&once->io, fd, events); |
1586 | ev_io_set (&once->io, fd, events); |
1573 | ev_io_start (EV_A_ &once->io); |
1587 | ev_io_start (EV_A_ &once->io); |
1574 | } |
1588 | } |
1575 | |
1589 | |
1576 | ev_watcher_init (&once->to, once_cb_to); |
1590 | ev_init (&once->to, once_cb_to); |
1577 | if (timeout >= 0.) |
1591 | if (timeout >= 0.) |
1578 | { |
1592 | { |
1579 | ev_timer_set (&once->to, timeout, 0.); |
1593 | ev_timer_set (&once->to, timeout, 0.); |
1580 | ev_timer_start (EV_A_ &once->to); |
1594 | ev_timer_start (EV_A_ &once->to); |
1581 | } |
1595 | } |