… | |
… | |
35 | * and other provisions required by the GPL. If you do not delete the |
35 | * and other provisions required by the GPL. If you do not delete the |
36 | * provisions above, a recipient may use your version of this file under |
36 | * provisions above, a recipient may use your version of this file under |
37 | * either the BSD or the GPL. |
37 | * either the BSD or the GPL. |
38 | */ |
38 | */ |
39 | |
39 | |
40 | #ifdef __cplusplus |
|
|
41 | extern "C" { |
|
|
42 | #endif |
|
|
43 | |
|
|
44 | /* this big block deduces configuration from config.h */ |
40 | /* this big block deduces configuration from config.h */ |
45 | #ifndef EV_STANDALONE |
41 | #ifndef EV_STANDALONE |
46 | # ifdef EV_CONFIG_H |
42 | # ifdef EV_CONFIG_H |
47 | # include EV_CONFIG_H |
43 | # include EV_CONFIG_H |
48 | # else |
44 | # else |
… | |
… | |
182 | # include EV_H |
178 | # include EV_H |
183 | #else |
179 | #else |
184 | # include "ev.h" |
180 | # include "ev.h" |
185 | #endif |
181 | #endif |
186 | |
182 | |
|
|
183 | EV_CPP(extern "C" {) |
|
|
184 | |
187 | #ifndef _WIN32 |
185 | #ifndef _WIN32 |
188 | # include <sys/time.h> |
186 | # include <sys/time.h> |
189 | # include <sys/wait.h> |
187 | # include <sys/wait.h> |
190 | # include <unistd.h> |
188 | # include <unistd.h> |
191 | #else |
189 | #else |
… | |
… | |
411 | # define EFD_CLOEXEC O_CLOEXEC |
409 | # define EFD_CLOEXEC O_CLOEXEC |
412 | # else |
410 | # else |
413 | # define EFD_CLOEXEC 02000000 |
411 | # define EFD_CLOEXEC 02000000 |
414 | # endif |
412 | # endif |
415 | # endif |
413 | # endif |
416 | # ifdef __cplusplus |
|
|
417 | extern "C" { |
|
|
418 | # endif |
|
|
419 | int (eventfd) (unsigned int initval, int flags); |
414 | EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); |
420 | # ifdef __cplusplus |
|
|
421 | } |
|
|
422 | # endif |
|
|
423 | #endif |
415 | #endif |
424 | |
416 | |
425 | #if EV_USE_SIGNALFD |
417 | #if EV_USE_SIGNALFD |
426 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
418 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
427 | # include <stdint.h> |
419 | # include <stdint.h> |
… | |
… | |
433 | # define SFD_CLOEXEC O_CLOEXEC |
425 | # define SFD_CLOEXEC O_CLOEXEC |
434 | # else |
426 | # else |
435 | # define SFD_CLOEXEC 02000000 |
427 | # define SFD_CLOEXEC 02000000 |
436 | # endif |
428 | # endif |
437 | # endif |
429 | # endif |
438 | # ifdef __cplusplus |
|
|
439 | extern "C" { |
|
|
440 | # endif |
|
|
441 | int signalfd (int fd, const sigset_t *mask, int flags); |
430 | EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags); |
442 | |
431 | |
443 | struct signalfd_siginfo |
432 | struct signalfd_siginfo |
444 | { |
433 | { |
445 | uint32_t ssi_signo; |
434 | uint32_t ssi_signo; |
446 | char pad[128 - sizeof (uint32_t)]; |
435 | char pad[128 - sizeof (uint32_t)]; |
447 | }; |
436 | }; |
448 | # ifdef __cplusplus |
|
|
449 | } |
|
|
450 | # endif |
|
|
451 | #endif |
437 | #endif |
452 | |
438 | |
453 | /**/ |
439 | /**/ |
454 | |
440 | |
455 | #if EV_VERIFY >= 3 |
441 | #if EV_VERIFY >= 3 |
… | |
… | |
537 | # include "ev_win32.c" |
523 | # include "ev_win32.c" |
538 | #endif |
524 | #endif |
539 | |
525 | |
540 | /*****************************************************************************/ |
526 | /*****************************************************************************/ |
541 | |
527 | |
|
|
528 | static unsigned int noinline |
|
|
529 | ev_linux_version (void) |
|
|
530 | { |
|
|
531 | #ifdef __linux |
|
|
532 | struct utsname buf; |
|
|
533 | unsigned int v; |
|
|
534 | int i; |
|
|
535 | char *p = buf.release; |
|
|
536 | |
|
|
537 | if (uname (&buf)) |
|
|
538 | return 0; |
|
|
539 | |
|
|
540 | for (i = 3+1; --i; ) |
|
|
541 | { |
|
|
542 | unsigned int c = 0; |
|
|
543 | |
|
|
544 | for (;;) |
|
|
545 | { |
|
|
546 | if (*p >= '0' && *p <= '9') |
|
|
547 | c = c * 10 + *p++ - '0'; |
|
|
548 | else |
|
|
549 | { |
|
|
550 | p += *p == '.'; |
|
|
551 | break; |
|
|
552 | } |
|
|
553 | } |
|
|
554 | |
|
|
555 | v = (v << 8) | c; |
|
|
556 | } |
|
|
557 | |
|
|
558 | return v; |
|
|
559 | #else |
|
|
560 | return 0; |
|
|
561 | #endif |
|
|
562 | } |
|
|
563 | |
|
|
564 | /*****************************************************************************/ |
|
|
565 | |
542 | #if EV_AVOID_STDIO |
566 | #if EV_AVOID_STDIO |
543 | static void noinline |
567 | static void noinline |
544 | ev_printerr (const char *msg) |
568 | ev_printerr (const char *msg) |
545 | { |
569 | { |
546 | write (STDERR_FILENO, msg, strlen (msg)); |
570 | write (STDERR_FILENO, msg, strlen (msg)); |
… | |
… | |
717 | # define EV_RELEASE_CB (void)0 |
741 | # define EV_RELEASE_CB (void)0 |
718 | # define EV_ACQUIRE_CB (void)0 |
742 | # define EV_ACQUIRE_CB (void)0 |
719 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
743 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
720 | #endif |
744 | #endif |
721 | |
745 | |
722 | #define EVUNLOOP_RECURSE 0x80 |
746 | #define EVBREAK_RECURSE 0x80 |
723 | |
747 | |
724 | /*****************************************************************************/ |
748 | /*****************************************************************************/ |
725 | |
749 | |
726 | #ifndef EV_HAVE_EV_TIME |
750 | #ifndef EV_HAVE_EV_TIME |
727 | ev_tstamp |
751 | ev_tstamp |
… | |
… | |
781 | struct timeval tv; |
805 | struct timeval tv; |
782 | |
806 | |
783 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
807 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
784 | /* something not guaranteed by newer posix versions, but guaranteed */ |
808 | /* something not guaranteed by newer posix versions, but guaranteed */ |
785 | /* by older ones */ |
809 | /* by older ones */ |
786 | EV_TS_SET (tv, delay); |
810 | EV_TV_SET (tv, delay); |
787 | select (0, 0, 0, 0, &tv); |
811 | select (0, 0, 0, 0, &tv); |
788 | #endif |
812 | #endif |
789 | } |
813 | } |
790 | } |
814 | } |
791 | |
815 | |
… | |
… | |
943 | { |
967 | { |
944 | int fd = fdchanges [i]; |
968 | int fd = fdchanges [i]; |
945 | ANFD *anfd = anfds + fd; |
969 | ANFD *anfd = anfds + fd; |
946 | ev_io *w; |
970 | ev_io *w; |
947 | |
971 | |
948 | unsigned char events = 0; |
972 | unsigned char o_events = anfd->events; |
|
|
973 | unsigned char o_reify = anfd->reify; |
949 | |
974 | |
950 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
975 | anfd->reify = 0; |
951 | events |= (unsigned char)w->events; |
|
|
952 | |
976 | |
953 | #if EV_SELECT_IS_WINSOCKET |
977 | #if EV_SELECT_IS_WINSOCKET |
954 | if (events) |
978 | if (o_reify & EV__IOFDSET) |
955 | { |
979 | { |
956 | unsigned long arg; |
980 | unsigned long arg; |
957 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
981 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
958 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
982 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
959 | } |
983 | } |
960 | #endif |
984 | #endif |
961 | |
985 | |
|
|
986 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
962 | { |
987 | { |
963 | unsigned char o_events = anfd->events; |
|
|
964 | unsigned char o_reify = anfd->reify; |
|
|
965 | |
|
|
966 | anfd->reify = 0; |
|
|
967 | anfd->events = events; |
988 | anfd->events = 0; |
968 | |
989 | |
969 | if (o_events != events || o_reify & EV__IOFDSET) |
990 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
|
|
991 | anfd->events |= (unsigned char)w->events; |
|
|
992 | |
|
|
993 | if (o_events != anfd->events) |
|
|
994 | o_reify = EV__IOFDSET; /* actually |= */ |
|
|
995 | } |
|
|
996 | |
|
|
997 | if (o_reify & EV__IOFDSET) |
970 | backend_modify (EV_A_ fd, o_events, events); |
998 | backend_modify (EV_A_ fd, o_events, anfd->events); |
971 | } |
|
|
972 | } |
999 | } |
973 | |
1000 | |
974 | fdchangecnt = 0; |
1001 | fdchangecnt = 0; |
975 | } |
1002 | } |
976 | |
1003 | |
… | |
… | |
1541 | ev_embeddable_backends (void) |
1568 | ev_embeddable_backends (void) |
1542 | { |
1569 | { |
1543 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
1570 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
1544 | |
1571 | |
1545 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1572 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1546 | /* please fix it and tell me how to detect the fix */ |
1573 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
1547 | flags &= ~EVBACKEND_EPOLL; |
1574 | flags &= ~EVBACKEND_EPOLL; |
1548 | |
1575 | |
1549 | return flags; |
1576 | return flags; |
1550 | } |
1577 | } |
1551 | |
1578 | |
1552 | unsigned int |
1579 | unsigned int |
… | |
… | |
2289 | mn_now = ev_rt_now; |
2316 | mn_now = ev_rt_now; |
2290 | } |
2317 | } |
2291 | } |
2318 | } |
2292 | |
2319 | |
2293 | void |
2320 | void |
2294 | ev_loop (EV_P_ int flags) |
2321 | ev_run (EV_P_ int flags) |
2295 | { |
2322 | { |
2296 | #if EV_FEATURE_API |
2323 | #if EV_FEATURE_API |
2297 | ++loop_depth; |
2324 | ++loop_depth; |
2298 | #endif |
2325 | #endif |
2299 | |
2326 | |
2300 | assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); |
2327 | assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE)); |
2301 | |
2328 | |
2302 | loop_done = EVUNLOOP_CANCEL; |
2329 | loop_done = EVBREAK_CANCEL; |
2303 | |
2330 | |
2304 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
2331 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
2305 | |
2332 | |
2306 | do |
2333 | do |
2307 | { |
2334 | { |
… | |
… | |
2350 | /* calculate blocking time */ |
2377 | /* calculate blocking time */ |
2351 | { |
2378 | { |
2352 | ev_tstamp waittime = 0.; |
2379 | ev_tstamp waittime = 0.; |
2353 | ev_tstamp sleeptime = 0.; |
2380 | ev_tstamp sleeptime = 0.; |
2354 | |
2381 | |
|
|
2382 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2383 | ev_tstamp prev_mn_now = mn_now; |
|
|
2384 | |
|
|
2385 | /* update time to cancel out callback processing overhead */ |
|
|
2386 | time_update (EV_A_ 1e100); |
|
|
2387 | |
2355 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2388 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt))) |
2356 | { |
2389 | { |
2357 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2358 | ev_tstamp prev_mn_now = mn_now; |
|
|
2359 | |
|
|
2360 | /* update time to cancel out callback processing overhead */ |
|
|
2361 | time_update (EV_A_ 1e100); |
|
|
2362 | |
|
|
2363 | waittime = MAX_BLOCKTIME; |
2390 | waittime = MAX_BLOCKTIME; |
2364 | |
2391 | |
2365 | if (timercnt) |
2392 | if (timercnt) |
2366 | { |
2393 | { |
2367 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
2394 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
… | |
… | |
2397 | } |
2424 | } |
2398 | |
2425 | |
2399 | #if EV_FEATURE_API |
2426 | #if EV_FEATURE_API |
2400 | ++loop_count; |
2427 | ++loop_count; |
2401 | #endif |
2428 | #endif |
2402 | assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ |
2429 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
2403 | backend_poll (EV_A_ waittime); |
2430 | backend_poll (EV_A_ waittime); |
2404 | assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ |
2431 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
2405 | |
2432 | |
2406 | /* update ev_rt_now, do magic */ |
2433 | /* update ev_rt_now, do magic */ |
2407 | time_update (EV_A_ waittime + sleeptime); |
2434 | time_update (EV_A_ waittime + sleeptime); |
2408 | } |
2435 | } |
2409 | |
2436 | |
… | |
… | |
2427 | EV_INVOKE_PENDING; |
2454 | EV_INVOKE_PENDING; |
2428 | } |
2455 | } |
2429 | while (expect_true ( |
2456 | while (expect_true ( |
2430 | activecnt |
2457 | activecnt |
2431 | && !loop_done |
2458 | && !loop_done |
2432 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2459 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
2433 | )); |
2460 | )); |
2434 | |
2461 | |
2435 | if (loop_done == EVUNLOOP_ONE) |
2462 | if (loop_done == EVBREAK_ONE) |
2436 | loop_done = EVUNLOOP_CANCEL; |
2463 | loop_done = EVBREAK_CANCEL; |
2437 | |
2464 | |
2438 | #if EV_FEATURE_API |
2465 | #if EV_FEATURE_API |
2439 | --loop_depth; |
2466 | --loop_depth; |
2440 | #endif |
2467 | #endif |
2441 | } |
2468 | } |
2442 | |
2469 | |
2443 | void |
2470 | void |
2444 | ev_unloop (EV_P_ int how) |
2471 | ev_break (EV_P_ int how) |
2445 | { |
2472 | { |
2446 | loop_done = how; |
2473 | loop_done = how; |
2447 | } |
2474 | } |
2448 | |
2475 | |
2449 | void |
2476 | void |
… | |
… | |
2597 | EV_FREQUENT_CHECK; |
2624 | EV_FREQUENT_CHECK; |
2598 | |
2625 | |
2599 | wlist_del (&anfds[w->fd].head, (WL)w); |
2626 | wlist_del (&anfds[w->fd].head, (WL)w); |
2600 | ev_stop (EV_A_ (W)w); |
2627 | ev_stop (EV_A_ (W)w); |
2601 | |
2628 | |
2602 | fd_change (EV_A_ w->fd, 1); |
2629 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
2603 | |
2630 | |
2604 | EV_FREQUENT_CHECK; |
2631 | EV_FREQUENT_CHECK; |
2605 | } |
2632 | } |
2606 | |
2633 | |
2607 | void noinline |
2634 | void noinline |
… | |
… | |
3059 | { |
3086 | { |
3060 | struct inotify_event *ev = (struct inotify_event *)(buf + ofs); |
3087 | struct inotify_event *ev = (struct inotify_event *)(buf + ofs); |
3061 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3088 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3062 | ofs += sizeof (struct inotify_event) + ev->len; |
3089 | ofs += sizeof (struct inotify_event) + ev->len; |
3063 | } |
3090 | } |
3064 | } |
|
|
3065 | |
|
|
3066 | inline_size unsigned int |
|
|
3067 | ev_linux_version (void) |
|
|
3068 | { |
|
|
3069 | struct utsname buf; |
|
|
3070 | unsigned int v; |
|
|
3071 | int i; |
|
|
3072 | char *p = buf.release; |
|
|
3073 | |
|
|
3074 | if (uname (&buf)) |
|
|
3075 | return 0; |
|
|
3076 | |
|
|
3077 | for (i = 3+1; --i; ) |
|
|
3078 | { |
|
|
3079 | unsigned int c = 0; |
|
|
3080 | |
|
|
3081 | for (;;) |
|
|
3082 | { |
|
|
3083 | if (*p >= '0' && *p <= '9') |
|
|
3084 | c = c * 10 + *p++ - '0'; |
|
|
3085 | else |
|
|
3086 | { |
|
|
3087 | p += *p == '.'; |
|
|
3088 | break; |
|
|
3089 | } |
|
|
3090 | } |
|
|
3091 | |
|
|
3092 | v = (v << 8) | c; |
|
|
3093 | } |
|
|
3094 | |
|
|
3095 | return v; |
|
|
3096 | } |
3091 | } |
3097 | |
3092 | |
3098 | inline_size void |
3093 | inline_size void |
3099 | ev_check_2625 (EV_P) |
3094 | ev_check_2625 (EV_P) |
3100 | { |
3095 | { |
… | |
… | |
3424 | |
3419 | |
3425 | #if EV_EMBED_ENABLE |
3420 | #if EV_EMBED_ENABLE |
3426 | void noinline |
3421 | void noinline |
3427 | ev_embed_sweep (EV_P_ ev_embed *w) |
3422 | ev_embed_sweep (EV_P_ ev_embed *w) |
3428 | { |
3423 | { |
3429 | ev_loop (w->other, EVLOOP_NONBLOCK); |
3424 | ev_run (w->other, EVRUN_NOWAIT); |
3430 | } |
3425 | } |
3431 | |
3426 | |
3432 | static void |
3427 | static void |
3433 | embed_io_cb (EV_P_ ev_io *io, int revents) |
3428 | embed_io_cb (EV_P_ ev_io *io, int revents) |
3434 | { |
3429 | { |
3435 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
3430 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
3436 | |
3431 | |
3437 | if (ev_cb (w)) |
3432 | if (ev_cb (w)) |
3438 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
3433 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
3439 | else |
3434 | else |
3440 | ev_loop (w->other, EVLOOP_NONBLOCK); |
3435 | ev_run (w->other, EVRUN_NOWAIT); |
3441 | } |
3436 | } |
3442 | |
3437 | |
3443 | static void |
3438 | static void |
3444 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3439 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3445 | { |
3440 | { |
… | |
… | |
3449 | EV_P = w->other; |
3444 | EV_P = w->other; |
3450 | |
3445 | |
3451 | while (fdchangecnt) |
3446 | while (fdchangecnt) |
3452 | { |
3447 | { |
3453 | fd_reify (EV_A); |
3448 | fd_reify (EV_A); |
3454 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3449 | ev_run (EV_A_ EVRUN_NOWAIT); |
3455 | } |
3450 | } |
3456 | } |
3451 | } |
3457 | } |
3452 | } |
3458 | |
3453 | |
3459 | static void |
3454 | static void |
… | |
… | |
3465 | |
3460 | |
3466 | { |
3461 | { |
3467 | EV_P = w->other; |
3462 | EV_P = w->other; |
3468 | |
3463 | |
3469 | ev_loop_fork (EV_A); |
3464 | ev_loop_fork (EV_A); |
3470 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3465 | ev_run (EV_A_ EVRUN_NOWAIT); |
3471 | } |
3466 | } |
3472 | |
3467 | |
3473 | ev_embed_start (EV_A_ w); |
3468 | ev_embed_start (EV_A_ w); |
3474 | } |
3469 | } |
3475 | |
3470 | |
… | |
… | |
3573 | void |
3568 | void |
3574 | ev_async_start (EV_P_ ev_async *w) |
3569 | ev_async_start (EV_P_ ev_async *w) |
3575 | { |
3570 | { |
3576 | if (expect_false (ev_is_active (w))) |
3571 | if (expect_false (ev_is_active (w))) |
3577 | return; |
3572 | return; |
|
|
3573 | |
|
|
3574 | w->sent = 0; |
3578 | |
3575 | |
3579 | evpipe_init (EV_A); |
3576 | evpipe_init (EV_A); |
3580 | |
3577 | |
3581 | EV_FREQUENT_CHECK; |
3578 | EV_FREQUENT_CHECK; |
3582 | |
3579 | |
… | |
… | |
3802 | |
3799 | |
3803 | #if EV_MULTIPLICITY |
3800 | #if EV_MULTIPLICITY |
3804 | #include "ev_wrap.h" |
3801 | #include "ev_wrap.h" |
3805 | #endif |
3802 | #endif |
3806 | |
3803 | |
3807 | #ifdef __cplusplus |
3804 | EV_CPP(}) |
3808 | } |
|
|
3809 | #endif |
|
|
3810 | |
3805 | |