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Comparing libev/ev.c (file contents):
Revision 1.185 by root, Fri Dec 14 18:22:30 2007 UTC vs.
Revision 1.193 by root, Sat Dec 22 05:47:58 2007 UTC

… …
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
431void
432ev_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
413int inline_size 458int inline_size
414array_nextsize (int elem, int cur, int cnt) 459array_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
927unsigned int 972unsigned int
928ev_embeddable_backends (void) 973ev_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
935unsigned int 980unsigned int
936ev_backend (EV_P) 981ev_backend (EV_P)
… …
940 985
941unsigned int 986unsigned int
942ev_loop_count (EV_P) 987ev_loop_count (EV_P)
943{ 988{
944 return loop_count; 989 return loop_count;
990}
991
992void
993ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
994{
995 io_blocktime = interval;
996}
997
998void
999ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
1000{
1001 timeout_blocktime = interval;
945} 1002}
946 1003
947static void noinline 1004static void noinline
948loop_init (EV_P_ unsigned int flags) 1005loop_init (EV_P_ unsigned int flags)
949{ 1006{
… …
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;
964 1021
1022 io_blocktime = 0.;
1023 timeout_blocktime = 0.;
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 ();
969#endif 1029#endif
… …
1037 array_free (pending, [i]); 1097 array_free (pending, [i]);
1038#if EV_IDLE_ENABLE 1098#if EV_IDLE_ENABLE
1039 array_free (idle, [i]); 1099 array_free (idle, [i]);
1040#endif 1100#endif
1041 } 1101 }
1102
1103 ev_free (anfds); anfdmax = 0;
1042 1104
1043 /* have to use the microsoft-never-gets-it-right macro */ 1105 /* have to use the microsoft-never-gets-it-right macro */
1044 array_free (fdchange, EMPTY); 1106 array_free (fdchange, EMPTY);
1045 array_free (timer, EMPTY); 1107 array_free (timer, EMPTY);
1046#if EV_PERIODIC_ENABLE 1108#if EV_PERIODIC_ENABLE
1047 array_free (periodic, EMPTY); 1109 array_free (periodic, EMPTY);
1110#endif
1111#if EV_FORK_ENABLE
1112 array_free (fork, EMPTY);
1048#endif 1113#endif
1049 array_free (prepare, EMPTY); 1114 array_free (prepare, EMPTY);
1050 array_free (check, EMPTY); 1115 array_free (check, EMPTY);
1051 1116
1052 backend = 0; 1117 backend = 0;
… …
1451 /* update fd-related kernel structures */ 1516 /* update fd-related kernel structures */
1452 fd_reify (EV_A); 1517 fd_reify (EV_A);
1453 1518
1454 /* calculate blocking time */ 1519 /* calculate blocking time */
1455 { 1520 {
1456 ev_tstamp block; 1521 ev_tstamp waittime = 0.;
1522 ev_tstamp sleeptime = 0.;
1457 1523
1458 if (expect_false (flags & EVLOOP_NONBLOCK || idleall || !activecnt)) 1524 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))
1459 block = 0.; /* do not block at all */
1460 else
1461 { 1525 {
1462 /* update time to cancel out callback processing overhead */ 1526 /* update time to cancel out callback processing overhead */
1463 time_update (EV_A_ 1e100); 1527 time_update (EV_A_ 1e100);
1464 1528
1465 block = MAX_BLOCKTIME; 1529 waittime = MAX_BLOCKTIME;
1466 1530
1467 if (timercnt) 1531 if (timercnt)
1468 { 1532 {
1469 ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; 1533 ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1470 if (block > to) block = to; 1534 if (waittime > to) waittime = to;
1471 } 1535 }
1472 1536
1473#if EV_PERIODIC_ENABLE 1537#if EV_PERIODIC_ENABLE
1474 if (periodiccnt) 1538 if (periodiccnt)
1475 { 1539 {
1476 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;
1477 if (block > to) block = to; 1541 if (waittime > to) waittime = to;
1478 } 1542 }
1479#endif 1543#endif
1480 1544
1481 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 }
1482 } 1558 }
1483 1559
1484 ++loop_count; 1560 ++loop_count;
1485 backend_poll (EV_A_ block); 1561 backend_poll (EV_A_ waittime);
1486 1562
1487 /* update ev_rt_now, do magic */ 1563 /* update ev_rt_now, do magic */
1488 time_update (EV_A_ block); 1564 time_update (EV_A_ waittime + sleeptime);
1489 } 1565 }
1490 1566
1491 /* queue pending timers and reschedule them */ 1567 /* queue pending timers and reschedule them */
1492 timers_reify (EV_A); /* relative timers called last */ 1568 timers_reify (EV_A); /* relative timers called last */
1493#if EV_PERIODIC_ENABLE 1569#if EV_PERIODIC_ENABLE
… …
2177 2253
2178#if EV_EMBED_ENABLE 2254#if EV_EMBED_ENABLE
2179void noinline 2255void noinline
2180ev_embed_sweep (EV_P_ ev_embed *w) 2256ev_embed_sweep (EV_P_ ev_embed *w)
2181{ 2257{
2182 ev_loop (w->loop, EVLOOP_NONBLOCK); 2258 ev_loop (w->other, EVLOOP_NONBLOCK);
2183} 2259}
2184 2260
2185static void 2261static void
2186embed_cb (EV_P_ ev_io *io, int revents) 2262embed_io_cb (EV_P_ ev_io *io, int revents)
2187{ 2263{
2188 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 2264 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
2189 2265
2190 if (ev_cb (w)) 2266 if (ev_cb (w))
2191 ev_feed_event (EV_A_ (W)w, EV_EMBED); 2267 ev_feed_event (EV_A_ (W)w, EV_EMBED);
2192 else 2268 else
2193 ev_embed_sweep (loop, w); 2269 ev_embed_sweep (loop, w);
2194} 2270}
2195 2271
2272static void
2273embed_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
2196void 2280void
2197ev_embed_start (EV_P_ ev_embed *w) 2281ev_embed_start (EV_P_ ev_embed *w)
2198{ 2282{
2199 if (expect_false (ev_is_active (w))) 2283 if (expect_false (ev_is_active (w)))
2200 return; 2284 return;
2201 2285
2202 { 2286 {
2203 struct ev_loop *loop = w->loop; 2287 struct ev_loop *loop = w->other;
2204 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 ()));
2205 ev_io_init (&w->io, embed_cb, backend_fd, EV_READ); 2289 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2206 } 2290 }
2207 2291
2208 ev_set_priority (&w->io, ev_priority (w)); 2292 ev_set_priority (&w->io, ev_priority (w));
2209 ev_io_start (EV_A_ &w->io); 2293 ev_io_start (EV_A_ &w->io);
2210 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
2211 ev_start (EV_A_ (W)w, 1); 2299 ev_start (EV_A_ (W)w, 1);
2212} 2300}
2213 2301
2214void 2302void
2215ev_embed_stop (EV_P_ ev_embed *w) 2303ev_embed_stop (EV_P_ ev_embed *w)
… …
2217 clear_pending (EV_A_ (W)w); 2305 clear_pending (EV_A_ (W)w);
2218 if (expect_false (!ev_is_active (w))) 2306 if (expect_false (!ev_is_active (w)))
2219 return; 2307 return;
2220 2308
2221 ev_io_stop (EV_A_ &w->io); 2309 ev_io_stop (EV_A_ &w->io);
2310 ev_prepare_stop (EV_A_ &w->prepare);
2222 2311
2223 ev_stop (EV_A_ (W)w); 2312 ev_stop (EV_A_ (W)w);
2224} 2313}
2225#endif 2314#endif
2226 2315
… …
2315 ev_timer_set (&once->to, timeout, 0.); 2404 ev_timer_set (&once->to, timeout, 0.);
2316 ev_timer_start (EV_A_ &once->to); 2405 ev_timer_start (EV_A_ &once->to);
2317 } 2406 }
2318} 2407}
2319 2408
2409#if EV_MULTIPLICITY
2410 #include "ev_wrap.h"
2411#endif
2412
2320#ifdef __cplusplus 2413#ifdef __cplusplus
2321} 2414}
2322#endif 2415#endif
2323 2416

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