… | |
… | |
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 |
… | |
… | |
202 | #ifndef CLOCK_REALTIME |
214 | #ifndef CLOCK_REALTIME |
203 | # undef EV_USE_REALTIME |
215 | # undef EV_USE_REALTIME |
204 | # define EV_USE_REALTIME 0 |
216 | # define EV_USE_REALTIME 0 |
205 | #endif |
217 | #endif |
206 | |
218 | |
|
|
219 | #if !EV_STAT_ENABLE |
|
|
220 | # undef EV_USE_INOTIFY |
|
|
221 | # define EV_USE_INOTIFY 0 |
|
|
222 | #endif |
|
|
223 | |
|
|
224 | #if !EV_USE_NANOSLEEP |
|
|
225 | # ifndef _WIN32 |
|
|
226 | # include <sys/select.h> |
|
|
227 | # endif |
|
|
228 | #endif |
|
|
229 | |
|
|
230 | #if EV_USE_INOTIFY |
|
|
231 | # include <sys/inotify.h> |
|
|
232 | #endif |
|
|
233 | |
207 | #if EV_SELECT_IS_WINSOCKET |
234 | #if EV_SELECT_IS_WINSOCKET |
208 | # include <winsock.h> |
235 | # include <winsock.h> |
209 | #endif |
|
|
210 | |
|
|
211 | #if !EV_STAT_ENABLE |
|
|
212 | # define EV_USE_INOTIFY 0 |
|
|
213 | #endif |
|
|
214 | |
|
|
215 | #if EV_USE_INOTIFY |
|
|
216 | # include <sys/inotify.h> |
|
|
217 | #endif |
236 | #endif |
218 | |
237 | |
219 | /**/ |
238 | /**/ |
220 | |
239 | |
221 | /* |
240 | /* |
… | |
… | |
230 | |
249 | |
231 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
250 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
232 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
251 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
233 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
252 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
234 | |
253 | |
235 | #if __GNUC__ >= 3 |
254 | #if __GNUC__ >= 4 |
236 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
255 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
237 | # define noinline __attribute__ ((noinline)) |
256 | # define noinline __attribute__ ((noinline)) |
238 | #else |
257 | #else |
239 | # define expect(expr,value) (expr) |
258 | # define expect(expr,value) (expr) |
240 | # define noinline |
259 | # define noinline |
… | |
… | |
261 | |
280 | |
262 | typedef ev_watcher *W; |
281 | typedef ev_watcher *W; |
263 | typedef ev_watcher_list *WL; |
282 | typedef ev_watcher_list *WL; |
264 | typedef ev_watcher_time *WT; |
283 | typedef ev_watcher_time *WT; |
265 | |
284 | |
|
|
285 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
|
|
286 | /* giving it a reasonably high chance of working on typical architetcures */ |
266 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
287 | static sig_atomic_t have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
267 | |
288 | |
268 | #ifdef _WIN32 |
289 | #ifdef _WIN32 |
269 | # include "ev_win32.c" |
290 | # include "ev_win32.c" |
270 | #endif |
291 | #endif |
271 | |
292 | |
… | |
… | |
407 | { |
428 | { |
408 | return ev_rt_now; |
429 | return ev_rt_now; |
409 | } |
430 | } |
410 | #endif |
431 | #endif |
411 | |
432 | |
|
|
433 | void |
|
|
434 | ev_sleep (ev_tstamp delay) |
|
|
435 | { |
|
|
436 | if (delay > 0.) |
|
|
437 | { |
|
|
438 | #if EV_USE_NANOSLEEP |
|
|
439 | struct timespec ts; |
|
|
440 | |
|
|
441 | ts.tv_sec = (time_t)delay; |
|
|
442 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
443 | |
|
|
444 | nanosleep (&ts, 0); |
|
|
445 | #elif defined(_WIN32) |
|
|
446 | Sleep (delay * 1e3); |
|
|
447 | #else |
|
|
448 | struct timeval tv; |
|
|
449 | |
|
|
450 | tv.tv_sec = (time_t)delay; |
|
|
451 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
|
|
452 | |
|
|
453 | select (0, 0, 0, 0, &tv); |
|
|
454 | #endif |
|
|
455 | } |
|
|
456 | } |
|
|
457 | |
|
|
458 | /*****************************************************************************/ |
|
|
459 | |
412 | int inline_size |
460 | int inline_size |
413 | array_nextsize (int elem, int cur, int cnt) |
461 | array_nextsize (int elem, int cur, int cnt) |
414 | { |
462 | { |
415 | int ncur = cur + 1; |
463 | int ncur = cur + 1; |
416 | |
464 | |
… | |
… | |
924 | } |
972 | } |
925 | |
973 | |
926 | unsigned int |
974 | unsigned int |
927 | ev_embeddable_backends (void) |
975 | ev_embeddable_backends (void) |
928 | { |
976 | { |
929 | return EVBACKEND_EPOLL |
977 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
930 | | EVBACKEND_KQUEUE |
978 | |
931 | | EVBACKEND_PORT; |
979 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
|
|
980 | /* please fix it and tell me how to detect the fix */ |
|
|
981 | flags &= ~EVBACKEND_EPOLL; |
|
|
982 | |
|
|
983 | #ifdef __APPLE__ |
|
|
984 | /* is there anything thats not broken on darwin? */ |
|
|
985 | flags &= ~EVBACKEND_KQUEUE; |
|
|
986 | #endif |
|
|
987 | |
|
|
988 | return flags; |
932 | } |
989 | } |
933 | |
990 | |
934 | unsigned int |
991 | unsigned int |
935 | ev_backend (EV_P) |
992 | ev_backend (EV_P) |
936 | { |
993 | { |
… | |
… | |
939 | |
996 | |
940 | unsigned int |
997 | unsigned int |
941 | ev_loop_count (EV_P) |
998 | ev_loop_count (EV_P) |
942 | { |
999 | { |
943 | return loop_count; |
1000 | return loop_count; |
|
|
1001 | } |
|
|
1002 | |
|
|
1003 | void |
|
|
1004 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1005 | { |
|
|
1006 | io_blocktime = interval; |
|
|
1007 | } |
|
|
1008 | |
|
|
1009 | void |
|
|
1010 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1011 | { |
|
|
1012 | timeout_blocktime = interval; |
944 | } |
1013 | } |
945 | |
1014 | |
946 | static void noinline |
1015 | static void noinline |
947 | loop_init (EV_P_ unsigned int flags) |
1016 | loop_init (EV_P_ unsigned int flags) |
948 | { |
1017 | { |
… | |
… | |
959 | ev_rt_now = ev_time (); |
1028 | ev_rt_now = ev_time (); |
960 | mn_now = get_clock (); |
1029 | mn_now = get_clock (); |
961 | now_floor = mn_now; |
1030 | now_floor = mn_now; |
962 | rtmn_diff = ev_rt_now - mn_now; |
1031 | rtmn_diff = ev_rt_now - mn_now; |
963 | |
1032 | |
|
|
1033 | io_blocktime = 0.; |
|
|
1034 | timeout_blocktime = 0.; |
|
|
1035 | |
964 | /* pid check not overridable via env */ |
1036 | /* pid check not overridable via env */ |
965 | #ifndef _WIN32 |
1037 | #ifndef _WIN32 |
966 | if (flags & EVFLAG_FORKCHECK) |
1038 | if (flags & EVFLAG_FORKCHECK) |
967 | curpid = getpid (); |
1039 | curpid = getpid (); |
968 | #endif |
1040 | #endif |
… | |
… | |
1036 | array_free (pending, [i]); |
1108 | array_free (pending, [i]); |
1037 | #if EV_IDLE_ENABLE |
1109 | #if EV_IDLE_ENABLE |
1038 | array_free (idle, [i]); |
1110 | array_free (idle, [i]); |
1039 | #endif |
1111 | #endif |
1040 | } |
1112 | } |
|
|
1113 | |
|
|
1114 | ev_free (anfds); anfdmax = 0; |
1041 | |
1115 | |
1042 | /* have to use the microsoft-never-gets-it-right macro */ |
1116 | /* have to use the microsoft-never-gets-it-right macro */ |
1043 | array_free (fdchange, EMPTY); |
1117 | array_free (fdchange, EMPTY); |
1044 | array_free (timer, EMPTY); |
1118 | array_free (timer, EMPTY); |
1045 | #if EV_PERIODIC_ENABLE |
1119 | #if EV_PERIODIC_ENABLE |
1046 | array_free (periodic, EMPTY); |
1120 | array_free (periodic, EMPTY); |
|
|
1121 | #endif |
|
|
1122 | #if EV_FORK_ENABLE |
|
|
1123 | array_free (fork, EMPTY); |
1047 | #endif |
1124 | #endif |
1048 | array_free (prepare, EMPTY); |
1125 | array_free (prepare, EMPTY); |
1049 | array_free (check, EMPTY); |
1126 | array_free (check, EMPTY); |
1050 | |
1127 | |
1051 | backend = 0; |
1128 | backend = 0; |
… | |
… | |
1450 | /* update fd-related kernel structures */ |
1527 | /* update fd-related kernel structures */ |
1451 | fd_reify (EV_A); |
1528 | fd_reify (EV_A); |
1452 | |
1529 | |
1453 | /* calculate blocking time */ |
1530 | /* calculate blocking time */ |
1454 | { |
1531 | { |
1455 | ev_tstamp block; |
1532 | ev_tstamp waittime = 0.; |
|
|
1533 | ev_tstamp sleeptime = 0.; |
1456 | |
1534 | |
1457 | if (expect_false (flags & EVLOOP_NONBLOCK || idleall || !activecnt)) |
1535 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
1458 | block = 0.; /* do not block at all */ |
|
|
1459 | else |
|
|
1460 | { |
1536 | { |
1461 | /* update time to cancel out callback processing overhead */ |
1537 | /* update time to cancel out callback processing overhead */ |
1462 | time_update (EV_A_ 1e100); |
1538 | time_update (EV_A_ 1e100); |
1463 | |
1539 | |
1464 | block = MAX_BLOCKTIME; |
1540 | waittime = MAX_BLOCKTIME; |
1465 | |
1541 | |
1466 | if (timercnt) |
1542 | if (timercnt) |
1467 | { |
1543 | { |
1468 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
1544 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
1469 | if (block > to) block = to; |
1545 | if (waittime > to) waittime = to; |
1470 | } |
1546 | } |
1471 | |
1547 | |
1472 | #if EV_PERIODIC_ENABLE |
1548 | #if EV_PERIODIC_ENABLE |
1473 | if (periodiccnt) |
1549 | if (periodiccnt) |
1474 | { |
1550 | { |
1475 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
1551 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
1476 | if (block > to) block = to; |
1552 | if (waittime > to) waittime = to; |
1477 | } |
1553 | } |
1478 | #endif |
1554 | #endif |
1479 | |
1555 | |
1480 | if (expect_false (block < 0.)) block = 0.; |
1556 | if (expect_false (waittime < timeout_blocktime)) |
|
|
1557 | waittime = timeout_blocktime; |
|
|
1558 | |
|
|
1559 | sleeptime = waittime - backend_fudge; |
|
|
1560 | |
|
|
1561 | if (expect_true (sleeptime > io_blocktime)) |
|
|
1562 | sleeptime = io_blocktime; |
|
|
1563 | |
|
|
1564 | if (sleeptime) |
|
|
1565 | { |
|
|
1566 | ev_sleep (sleeptime); |
|
|
1567 | waittime -= sleeptime; |
|
|
1568 | } |
1481 | } |
1569 | } |
1482 | |
1570 | |
1483 | ++loop_count; |
1571 | ++loop_count; |
1484 | backend_poll (EV_A_ block); |
1572 | backend_poll (EV_A_ waittime); |
1485 | |
1573 | |
1486 | /* update ev_rt_now, do magic */ |
1574 | /* update ev_rt_now, do magic */ |
1487 | time_update (EV_A_ block); |
1575 | time_update (EV_A_ waittime + sleeptime); |
1488 | } |
1576 | } |
1489 | |
1577 | |
1490 | /* queue pending timers and reschedule them */ |
1578 | /* queue pending timers and reschedule them */ |
1491 | timers_reify (EV_A); /* relative timers called last */ |
1579 | timers_reify (EV_A); /* relative timers called last */ |
1492 | #if EV_PERIODIC_ENABLE |
1580 | #if EV_PERIODIC_ENABLE |
… | |
… | |
2176 | |
2264 | |
2177 | #if EV_EMBED_ENABLE |
2265 | #if EV_EMBED_ENABLE |
2178 | void noinline |
2266 | void noinline |
2179 | ev_embed_sweep (EV_P_ ev_embed *w) |
2267 | ev_embed_sweep (EV_P_ ev_embed *w) |
2180 | { |
2268 | { |
2181 | ev_loop (w->loop, EVLOOP_NONBLOCK); |
2269 | ev_loop (w->other, EVLOOP_NONBLOCK); |
2182 | } |
2270 | } |
2183 | |
2271 | |
2184 | static void |
2272 | static void |
2185 | embed_cb (EV_P_ ev_io *io, int revents) |
2273 | embed_io_cb (EV_P_ ev_io *io, int revents) |
2186 | { |
2274 | { |
2187 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
2275 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
2188 | |
2276 | |
2189 | if (ev_cb (w)) |
2277 | if (ev_cb (w)) |
2190 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2278 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2191 | else |
2279 | else |
2192 | ev_embed_sweep (loop, w); |
2280 | ev_loop (w->other, EVLOOP_NONBLOCK); |
2193 | } |
2281 | } |
|
|
2282 | |
|
|
2283 | static void |
|
|
2284 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
|
|
2285 | { |
|
|
2286 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
|
|
2287 | |
|
|
2288 | { |
|
|
2289 | struct ev_loop *loop = w->other; |
|
|
2290 | |
|
|
2291 | while (fdchangecnt) |
|
|
2292 | { |
|
|
2293 | fd_reify (EV_A); |
|
|
2294 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
2295 | } |
|
|
2296 | } |
|
|
2297 | } |
|
|
2298 | |
|
|
2299 | #if 0 |
|
|
2300 | static void |
|
|
2301 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
|
|
2302 | { |
|
|
2303 | ev_idle_stop (EV_A_ idle); |
|
|
2304 | } |
|
|
2305 | #endif |
2194 | |
2306 | |
2195 | void |
2307 | void |
2196 | ev_embed_start (EV_P_ ev_embed *w) |
2308 | ev_embed_start (EV_P_ ev_embed *w) |
2197 | { |
2309 | { |
2198 | if (expect_false (ev_is_active (w))) |
2310 | if (expect_false (ev_is_active (w))) |
2199 | return; |
2311 | return; |
2200 | |
2312 | |
2201 | { |
2313 | { |
2202 | struct ev_loop *loop = w->loop; |
2314 | struct ev_loop *loop = w->other; |
2203 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2315 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2204 | ev_io_init (&w->io, embed_cb, backend_fd, EV_READ); |
2316 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2205 | } |
2317 | } |
2206 | |
2318 | |
2207 | ev_set_priority (&w->io, ev_priority (w)); |
2319 | ev_set_priority (&w->io, ev_priority (w)); |
2208 | ev_io_start (EV_A_ &w->io); |
2320 | ev_io_start (EV_A_ &w->io); |
2209 | |
2321 | |
|
|
2322 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
|
|
2323 | ev_set_priority (&w->prepare, EV_MINPRI); |
|
|
2324 | ev_prepare_start (EV_A_ &w->prepare); |
|
|
2325 | |
|
|
2326 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
|
|
2327 | |
2210 | ev_start (EV_A_ (W)w, 1); |
2328 | ev_start (EV_A_ (W)w, 1); |
2211 | } |
2329 | } |
2212 | |
2330 | |
2213 | void |
2331 | void |
2214 | ev_embed_stop (EV_P_ ev_embed *w) |
2332 | ev_embed_stop (EV_P_ ev_embed *w) |
… | |
… | |
2216 | clear_pending (EV_A_ (W)w); |
2334 | clear_pending (EV_A_ (W)w); |
2217 | if (expect_false (!ev_is_active (w))) |
2335 | if (expect_false (!ev_is_active (w))) |
2218 | return; |
2336 | return; |
2219 | |
2337 | |
2220 | ev_io_stop (EV_A_ &w->io); |
2338 | ev_io_stop (EV_A_ &w->io); |
|
|
2339 | ev_prepare_stop (EV_A_ &w->prepare); |
2221 | |
2340 | |
2222 | ev_stop (EV_A_ (W)w); |
2341 | ev_stop (EV_A_ (W)w); |
2223 | } |
2342 | } |
2224 | #endif |
2343 | #endif |
2225 | |
2344 | |
… | |
… | |
2314 | ev_timer_set (&once->to, timeout, 0.); |
2433 | ev_timer_set (&once->to, timeout, 0.); |
2315 | ev_timer_start (EV_A_ &once->to); |
2434 | ev_timer_start (EV_A_ &once->to); |
2316 | } |
2435 | } |
2317 | } |
2436 | } |
2318 | |
2437 | |
|
|
2438 | #if EV_MULTIPLICITY |
|
|
2439 | #include "ev_wrap.h" |
|
|
2440 | #endif |
|
|
2441 | |
2319 | #ifdef __cplusplus |
2442 | #ifdef __cplusplus |
2320 | } |
2443 | } |
2321 | #endif |
2444 | #endif |
2322 | |
2445 | |