… | |
… | |
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 |
|
|
56 | # endif |
|
|
57 | # endif |
|
|
58 | |
|
|
59 | # ifndef EV_USE_NANOSLEEP |
|
|
60 | # if HAVE_NANOSLEEP |
|
|
61 | # define EV_USE_NANOSLEEP 1 |
|
|
62 | # else |
|
|
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 |
… | |
… | |
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 | |
|
|
159 | #ifndef EV_USE_NANOSLEEP |
|
|
160 | # define EV_USE_NANOSLEEP 0 |
|
|
161 | #endif |
|
|
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 |
… | |
… | |
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 |
|
|
222 | #endif |
|
|
223 | |
|
|
224 | #if !EV_USE_NANOSLEEP |
|
|
225 | # ifndef _WIN32 |
|
|
226 | # include <sys/select.h> |
|
|
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 |
… | |
… | |
408 | { |
426 | { |
409 | return ev_rt_now; |
427 | return ev_rt_now; |
410 | } |
428 | } |
411 | #endif |
429 | #endif |
412 | |
430 | |
|
|
431 | void |
|
|
432 | ev_sleep (ev_tstamp delay) |
|
|
433 | { |
|
|
434 | if (delay > 0.) |
|
|
435 | { |
|
|
436 | #if EV_USE_NANOSLEEP |
|
|
437 | struct timespec ts; |
|
|
438 | |
|
|
439 | ts.tv_sec = (time_t)delay; |
|
|
440 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
441 | |
|
|
442 | nanosleep (&ts, 0); |
|
|
443 | #elif defined(_WIN32) |
|
|
444 | Sleep (delay * 1e3); |
|
|
445 | #else |
|
|
446 | struct timeval tv; |
|
|
447 | |
|
|
448 | tv.tv_sec = (time_t)delay; |
|
|
449 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
|
|
450 | |
|
|
451 | select (0, 0, 0, 0, &tv); |
|
|
452 | #endif |
|
|
453 | } |
|
|
454 | } |
|
|
455 | |
|
|
456 | /*****************************************************************************/ |
|
|
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 | |
… | |
… | |
925 | } |
970 | } |
926 | |
971 | |
927 | unsigned int |
972 | unsigned int |
928 | ev_embeddable_backends (void) |
973 | ev_embeddable_backends (void) |
929 | { |
974 | { |
|
|
975 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
930 | return EVBACKEND_EPOLL |
976 | return EVBACKEND_KQUEUE |
931 | | EVBACKEND_KQUEUE |
|
|
932 | | EVBACKEND_PORT; |
977 | | EVBACKEND_PORT; |
933 | } |
978 | } |
934 | |
979 | |
935 | unsigned int |
980 | unsigned int |
936 | ev_backend (EV_P) |
981 | ev_backend (EV_P) |
… | |
… | |
940 | |
985 | |
941 | unsigned int |
986 | unsigned int |
942 | ev_loop_count (EV_P) |
987 | ev_loop_count (EV_P) |
943 | { |
988 | { |
944 | return loop_count; |
989 | return loop_count; |
|
|
990 | } |
|
|
991 | |
|
|
992 | void |
|
|
993 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
|
|
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; |
945 | } |
1002 | } |
946 | |
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 | { |
… | |
… | |
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; |
|
|
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.; |
|
|
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 */ |
|
|
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 |
… | |
… | |
2182 | |
2253 | |
2183 | #if EV_EMBED_ENABLE |
2254 | #if EV_EMBED_ENABLE |
2184 | void noinline |
2255 | void noinline |
2185 | ev_embed_sweep (EV_P_ ev_embed *w) |
2256 | ev_embed_sweep (EV_P_ ev_embed *w) |
2186 | { |
2257 | { |
2187 | ev_loop (w->loop, EVLOOP_NONBLOCK); |
2258 | ev_loop (w->other, EVLOOP_NONBLOCK); |
2188 | } |
2259 | } |
2189 | |
2260 | |
2190 | static void |
2261 | static void |
2191 | embed_cb (EV_P_ ev_io *io, int revents) |
2262 | embed_io_cb (EV_P_ ev_io *io, int revents) |
2192 | { |
2263 | { |
2193 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
2264 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
2194 | |
2265 | |
2195 | if (ev_cb (w)) |
2266 | if (ev_cb (w)) |
2196 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2267 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2197 | else |
2268 | else |
2198 | ev_embed_sweep (loop, w); |
2269 | ev_embed_sweep (loop, w); |
2199 | } |
2270 | } |
2200 | |
2271 | |
|
|
2272 | static void |
|
|
2273 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
|
|
2274 | { |
|
|
2275 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
|
|
2276 | |
|
|
2277 | fd_reify (w->other); |
|
|
2278 | } |
|
|
2279 | |
2201 | void |
2280 | void |
2202 | ev_embed_start (EV_P_ ev_embed *w) |
2281 | ev_embed_start (EV_P_ ev_embed *w) |
2203 | { |
2282 | { |
2204 | if (expect_false (ev_is_active (w))) |
2283 | if (expect_false (ev_is_active (w))) |
2205 | return; |
2284 | return; |
2206 | |
2285 | |
2207 | { |
2286 | { |
2208 | struct ev_loop *loop = w->loop; |
2287 | struct ev_loop *loop = w->other; |
2209 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2288 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2210 | ev_io_init (&w->io, embed_cb, backend_fd, EV_READ); |
2289 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2211 | } |
2290 | } |
2212 | |
2291 | |
2213 | ev_set_priority (&w->io, ev_priority (w)); |
2292 | ev_set_priority (&w->io, ev_priority (w)); |
2214 | ev_io_start (EV_A_ &w->io); |
2293 | ev_io_start (EV_A_ &w->io); |
2215 | |
2294 | |
|
|
2295 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
|
|
2296 | ev_set_priority (&w->prepare, EV_MINPRI); |
|
|
2297 | ev_prepare_start (EV_A_ &w->prepare); |
|
|
2298 | |
2216 | ev_start (EV_A_ (W)w, 1); |
2299 | ev_start (EV_A_ (W)w, 1); |
2217 | } |
2300 | } |
2218 | |
2301 | |
2219 | void |
2302 | void |
2220 | ev_embed_stop (EV_P_ ev_embed *w) |
2303 | ev_embed_stop (EV_P_ ev_embed *w) |
… | |
… | |
2222 | clear_pending (EV_A_ (W)w); |
2305 | clear_pending (EV_A_ (W)w); |
2223 | if (expect_false (!ev_is_active (w))) |
2306 | if (expect_false (!ev_is_active (w))) |
2224 | return; |
2307 | return; |
2225 | |
2308 | |
2226 | ev_io_stop (EV_A_ &w->io); |
2309 | ev_io_stop (EV_A_ &w->io); |
|
|
2310 | ev_prepare_stop (EV_A_ &w->prepare); |
2227 | |
2311 | |
2228 | ev_stop (EV_A_ (W)w); |
2312 | ev_stop (EV_A_ (W)w); |
2229 | } |
2313 | } |
2230 | #endif |
2314 | #endif |
2231 | |
2315 | |
… | |
… | |
2320 | ev_timer_set (&once->to, timeout, 0.); |
2404 | ev_timer_set (&once->to, timeout, 0.); |
2321 | ev_timer_start (EV_A_ &once->to); |
2405 | ev_timer_start (EV_A_ &once->to); |
2322 | } |
2406 | } |
2323 | } |
2407 | } |
2324 | |
2408 | |
|
|
2409 | #if EV_MULTIPLICITY |
|
|
2410 | #include "ev_wrap.h" |
|
|
2411 | #endif |
|
|
2412 | |
2325 | #ifdef __cplusplus |
2413 | #ifdef __cplusplus |
2326 | } |
2414 | } |
2327 | #endif |
2415 | #endif |
2328 | |
2416 | |