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51 | # ifndef EV_USE_MONOTONIC |
51 | # ifndef EV_USE_MONOTONIC |
52 | # define EV_USE_MONOTONIC 0 |
52 | # define EV_USE_MONOTONIC 0 |
53 | # endif |
53 | # endif |
54 | # ifndef EV_USE_REALTIME |
54 | # ifndef EV_USE_REALTIME |
55 | # define EV_USE_REALTIME 0 |
55 | # define EV_USE_REALTIME 0 |
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56 | # endif |
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57 | # endif |
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58 | |
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59 | # ifndef EV_USE_NANOSLEEP |
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60 | # if HAVE_NANOSLEEP |
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61 | # define EV_USE_NANOSLEEP 1 |
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62 | # else |
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63 | # define EV_USE_NANOSLEEP 0 |
56 | # endif |
64 | # endif |
57 | # endif |
65 | # endif |
58 | |
66 | |
59 | # ifndef EV_USE_SELECT |
67 | # ifndef EV_USE_SELECT |
60 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
68 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
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146 | |
154 | |
147 | #ifndef EV_USE_REALTIME |
155 | #ifndef EV_USE_REALTIME |
148 | # define EV_USE_REALTIME 0 |
156 | # define EV_USE_REALTIME 0 |
149 | #endif |
157 | #endif |
150 | |
158 | |
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159 | #ifndef EV_USE_NANOSLEEP |
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160 | # define EV_USE_NANOSLEEP 0 |
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161 | #endif |
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162 | |
151 | #ifndef EV_USE_SELECT |
163 | #ifndef EV_USE_SELECT |
152 | # define EV_USE_SELECT 1 |
164 | # define EV_USE_SELECT 1 |
153 | #endif |
165 | #endif |
154 | |
166 | |
155 | #ifndef EV_USE_POLL |
167 | #ifndef EV_USE_POLL |
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205 | #endif |
217 | #endif |
206 | |
218 | |
207 | #if !EV_STAT_ENABLE |
219 | #if !EV_STAT_ENABLE |
208 | # undef EV_USE_INOTIFY |
220 | # undef EV_USE_INOTIFY |
209 | # define EV_USE_INOTIFY 0 |
221 | # define EV_USE_INOTIFY 0 |
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222 | #endif |
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223 | |
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224 | #if !EV_USE_NANOSLEEP |
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225 | # ifndef _WIN32 |
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|
226 | # include <sys/select.h> |
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227 | # endif |
210 | #endif |
228 | #endif |
211 | |
229 | |
212 | #if EV_USE_INOTIFY |
230 | #if EV_USE_INOTIFY |
213 | # include <sys/inotify.h> |
231 | # include <sys/inotify.h> |
214 | #endif |
232 | #endif |
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408 | { |
426 | { |
409 | return ev_rt_now; |
427 | return ev_rt_now; |
410 | } |
428 | } |
411 | #endif |
429 | #endif |
412 | |
430 | |
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|
431 | void |
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|
432 | ev_sleep (ev_tstamp delay) |
|
|
433 | { |
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|
434 | if (delay > 0.) |
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|
435 | { |
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|
436 | #if EV_USE_NANOSLEEP |
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|
437 | struct timespec ts; |
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438 | |
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439 | ts.tv_sec = (time_t)delay; |
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440 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
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441 | |
|
|
442 | nanosleep (&ts, 0); |
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|
443 | #elif defined(_WIN32) |
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|
444 | Sleep (delay * 1e3); |
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|
445 | #else |
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|
446 | struct timeval tv; |
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|
447 | |
|
|
448 | tv.tv_sec = (time_t)delay; |
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|
449 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
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|
450 | |
|
|
451 | select (0, 0, 0, 0, &tv); |
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|
452 | #endif |
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|
453 | } |
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|
454 | } |
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|
455 | |
|
|
456 | /*****************************************************************************/ |
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457 | |
413 | int inline_size |
458 | int inline_size |
414 | array_nextsize (int elem, int cur, int cnt) |
459 | array_nextsize (int elem, int cur, int cnt) |
415 | { |
460 | { |
416 | int ncur = cur + 1; |
461 | int ncur = cur + 1; |
417 | |
462 | |
… | |
… | |
942 | ev_loop_count (EV_P) |
987 | ev_loop_count (EV_P) |
943 | { |
988 | { |
944 | return loop_count; |
989 | return loop_count; |
945 | } |
990 | } |
946 | |
991 | |
|
|
992 | void |
|
|
993 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
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|
994 | { |
|
|
995 | io_blocktime = interval; |
|
|
996 | } |
|
|
997 | |
|
|
998 | void |
|
|
999 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1000 | { |
|
|
1001 | timeout_blocktime = interval; |
|
|
1002 | } |
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|
1003 | |
947 | static void noinline |
1004 | static void noinline |
948 | loop_init (EV_P_ unsigned int flags) |
1005 | loop_init (EV_P_ unsigned int flags) |
949 | { |
1006 | { |
950 | if (!backend) |
1007 | if (!backend) |
951 | { |
1008 | { |
… | |
… | |
959 | |
1016 | |
960 | ev_rt_now = ev_time (); |
1017 | ev_rt_now = ev_time (); |
961 | mn_now = get_clock (); |
1018 | mn_now = get_clock (); |
962 | now_floor = mn_now; |
1019 | now_floor = mn_now; |
963 | rtmn_diff = ev_rt_now - mn_now; |
1020 | rtmn_diff = ev_rt_now - mn_now; |
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|
1021 | |
|
|
1022 | io_blocktime = 0.; |
|
|
1023 | timeout_blocktime = 0.; |
964 | |
1024 | |
965 | /* pid check not overridable via env */ |
1025 | /* pid check not overridable via env */ |
966 | #ifndef _WIN32 |
1026 | #ifndef _WIN32 |
967 | if (flags & EVFLAG_FORKCHECK) |
1027 | if (flags & EVFLAG_FORKCHECK) |
968 | curpid = getpid (); |
1028 | curpid = getpid (); |
… | |
… | |
1456 | /* update fd-related kernel structures */ |
1516 | /* update fd-related kernel structures */ |
1457 | fd_reify (EV_A); |
1517 | fd_reify (EV_A); |
1458 | |
1518 | |
1459 | /* calculate blocking time */ |
1519 | /* calculate blocking time */ |
1460 | { |
1520 | { |
1461 | ev_tstamp block; |
1521 | ev_tstamp waittime = 0.; |
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|
1522 | ev_tstamp sleeptime = 0.; |
1462 | |
1523 | |
1463 | if (expect_false (flags & EVLOOP_NONBLOCK || idleall || !activecnt)) |
1524 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
1464 | block = 0.; /* do not block at all */ |
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|
1465 | else |
|
|
1466 | { |
1525 | { |
1467 | /* update time to cancel out callback processing overhead */ |
1526 | /* update time to cancel out callback processing overhead */ |
1468 | time_update (EV_A_ 1e100); |
1527 | time_update (EV_A_ 1e100); |
1469 | |
1528 | |
1470 | block = MAX_BLOCKTIME; |
1529 | waittime = MAX_BLOCKTIME; |
1471 | |
1530 | |
1472 | if (timercnt) |
1531 | if (timercnt) |
1473 | { |
1532 | { |
1474 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
1533 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
1475 | if (block > to) block = to; |
1534 | if (waittime > to) waittime = to; |
1476 | } |
1535 | } |
1477 | |
1536 | |
1478 | #if EV_PERIODIC_ENABLE |
1537 | #if EV_PERIODIC_ENABLE |
1479 | if (periodiccnt) |
1538 | if (periodiccnt) |
1480 | { |
1539 | { |
1481 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
1540 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
1482 | if (block > to) block = to; |
1541 | if (waittime > to) waittime = to; |
1483 | } |
1542 | } |
1484 | #endif |
1543 | #endif |
1485 | |
1544 | |
1486 | if (expect_false (block < 0.)) block = 0.; |
1545 | if (expect_false (waittime < timeout_blocktime)) |
|
|
1546 | waittime = timeout_blocktime; |
|
|
1547 | |
|
|
1548 | sleeptime = waittime - backend_fudge; |
|
|
1549 | |
|
|
1550 | if (expect_true (sleeptime > io_blocktime)) |
|
|
1551 | sleeptime = io_blocktime; |
|
|
1552 | |
|
|
1553 | if (sleeptime) |
|
|
1554 | { |
|
|
1555 | ev_sleep (sleeptime); |
|
|
1556 | waittime -= sleeptime; |
|
|
1557 | } |
1487 | } |
1558 | } |
1488 | |
1559 | |
1489 | ++loop_count; |
1560 | ++loop_count; |
1490 | backend_poll (EV_A_ block); |
1561 | backend_poll (EV_A_ waittime); |
1491 | |
1562 | |
1492 | /* update ev_rt_now, do magic */ |
1563 | /* update ev_rt_now, do magic */ |
1493 | time_update (EV_A_ block); |
1564 | time_update (EV_A_ waittime + sleeptime); |
1494 | } |
1565 | } |
1495 | |
1566 | |
1496 | /* queue pending timers and reschedule them */ |
1567 | /* queue pending timers and reschedule them */ |
1497 | timers_reify (EV_A); /* relative timers called last */ |
1568 | timers_reify (EV_A); /* relative timers called last */ |
1498 | #if EV_PERIODIC_ENABLE |
1569 | #if EV_PERIODIC_ENABLE |