1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008,2009,2010 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libev@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * tion, are permitted provided that the following conditions are met: |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * |
9 | * |
… | |
… | |
34 | * by deleting the provisions above and replace them with the notice |
34 | * by deleting the provisions above and replace them with the notice |
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 | |
|
|
40 | #ifdef __cplusplus |
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|
41 | extern "C" { |
|
|
42 | #endif |
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43 | |
39 | |
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 |
… | |
… | |
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 | |
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|
183 | EV_CPP(extern "C" {) |
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|
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 |
… | |
… | |
384 | # include <sys/select.h> |
382 | # include <sys/select.h> |
385 | # endif |
383 | # endif |
386 | #endif |
384 | #endif |
387 | |
385 | |
388 | #if EV_USE_INOTIFY |
386 | #if EV_USE_INOTIFY |
389 | # include <sys/utsname.h> |
|
|
390 | # include <sys/statfs.h> |
387 | # include <sys/statfs.h> |
391 | # include <sys/inotify.h> |
388 | # include <sys/inotify.h> |
392 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
389 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
393 | # ifndef IN_DONT_FOLLOW |
390 | # ifndef IN_DONT_FOLLOW |
394 | # undef EV_USE_INOTIFY |
391 | # undef EV_USE_INOTIFY |
… | |
… | |
411 | # define EFD_CLOEXEC O_CLOEXEC |
408 | # define EFD_CLOEXEC O_CLOEXEC |
412 | # else |
409 | # else |
413 | # define EFD_CLOEXEC 02000000 |
410 | # define EFD_CLOEXEC 02000000 |
414 | # endif |
411 | # endif |
415 | # endif |
412 | # endif |
416 | # ifdef __cplusplus |
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|
417 | extern "C" { |
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|
418 | # endif |
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|
419 | int (eventfd) (unsigned int initval, int flags); |
413 | EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); |
420 | # ifdef __cplusplus |
|
|
421 | } |
|
|
422 | # endif |
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|
423 | #endif |
414 | #endif |
424 | |
415 | |
425 | #if EV_USE_SIGNALFD |
416 | #if EV_USE_SIGNALFD |
426 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
417 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
427 | # include <stdint.h> |
418 | # include <stdint.h> |
… | |
… | |
433 | # define SFD_CLOEXEC O_CLOEXEC |
424 | # define SFD_CLOEXEC O_CLOEXEC |
434 | # else |
425 | # else |
435 | # define SFD_CLOEXEC 02000000 |
426 | # define SFD_CLOEXEC 02000000 |
436 | # endif |
427 | # endif |
437 | # endif |
428 | # endif |
438 | # ifdef __cplusplus |
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|
439 | extern "C" { |
|
|
440 | # endif |
|
|
441 | int signalfd (int fd, const sigset_t *mask, int flags); |
429 | EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags); |
442 | |
430 | |
443 | struct signalfd_siginfo |
431 | struct signalfd_siginfo |
444 | { |
432 | { |
445 | uint32_t ssi_signo; |
433 | uint32_t ssi_signo; |
446 | char pad[128 - sizeof (uint32_t)]; |
434 | char pad[128 - sizeof (uint32_t)]; |
447 | }; |
435 | }; |
448 | # ifdef __cplusplus |
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|
449 | } |
|
|
450 | # endif |
436 | #endif |
451 | #endif |
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|
452 | |
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453 | |
437 | |
454 | /**/ |
438 | /**/ |
455 | |
439 | |
456 | #if EV_VERIFY >= 3 |
440 | #if EV_VERIFY >= 3 |
457 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
441 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
… | |
… | |
470 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
454 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
471 | |
455 | |
472 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
456 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
473 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
457 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
474 | |
458 | |
|
|
459 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
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460 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
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|
461 | |
475 | #if __GNUC__ >= 4 |
462 | #if __GNUC__ >= 4 |
476 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
463 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
477 | # define noinline __attribute__ ((noinline)) |
464 | # define noinline __attribute__ ((noinline)) |
478 | #else |
465 | #else |
479 | # define expect(expr,value) (expr) |
466 | # define expect(expr,value) (expr) |
… | |
… | |
511 | #define ev_active(w) ((W)(w))->active |
498 | #define ev_active(w) ((W)(w))->active |
512 | #define ev_at(w) ((WT)(w))->at |
499 | #define ev_at(w) ((WT)(w))->at |
513 | |
500 | |
514 | #if EV_USE_REALTIME |
501 | #if EV_USE_REALTIME |
515 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
502 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
516 | /* giving it a reasonably high chance of working on typical architetcures */ |
503 | /* giving it a reasonably high chance of working on typical architectures */ |
517 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
504 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
518 | #endif |
505 | #endif |
519 | |
506 | |
520 | #if EV_USE_MONOTONIC |
507 | #if EV_USE_MONOTONIC |
521 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
508 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
… | |
… | |
532 | #endif |
519 | #endif |
533 | |
520 | |
534 | #ifdef _WIN32 |
521 | #ifdef _WIN32 |
535 | # include "ev_win32.c" |
522 | # include "ev_win32.c" |
536 | #endif |
523 | #endif |
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|
524 | |
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|
525 | /*****************************************************************************/ |
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526 | |
|
|
527 | #ifdef __linux |
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|
528 | # include <sys/utsname.h> |
|
|
529 | #endif |
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|
530 | |
|
|
531 | static unsigned int noinline |
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|
532 | ev_linux_version (void) |
|
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533 | { |
|
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534 | #ifdef __linux |
|
|
535 | unsigned int v = 0; |
|
|
536 | struct utsname buf; |
|
|
537 | int i; |
|
|
538 | char *p = buf.release; |
|
|
539 | |
|
|
540 | if (uname (&buf)) |
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|
541 | return 0; |
|
|
542 | |
|
|
543 | for (i = 3+1; --i; ) |
|
|
544 | { |
|
|
545 | unsigned int c = 0; |
|
|
546 | |
|
|
547 | for (;;) |
|
|
548 | { |
|
|
549 | if (*p >= '0' && *p <= '9') |
|
|
550 | c = c * 10 + *p++ - '0'; |
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|
551 | else |
|
|
552 | { |
|
|
553 | p += *p == '.'; |
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554 | break; |
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|
555 | } |
|
|
556 | } |
|
|
557 | |
|
|
558 | v = (v << 8) | c; |
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|
559 | } |
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|
560 | |
|
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561 | return v; |
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|
562 | #else |
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|
563 | return 0; |
|
|
564 | #endif |
|
|
565 | } |
537 | |
566 | |
538 | /*****************************************************************************/ |
567 | /*****************************************************************************/ |
539 | |
568 | |
540 | #if EV_AVOID_STDIO |
569 | #if EV_AVOID_STDIO |
541 | static void noinline |
570 | static void noinline |
… | |
… | |
562 | if (syserr_cb) |
591 | if (syserr_cb) |
563 | syserr_cb (msg); |
592 | syserr_cb (msg); |
564 | else |
593 | else |
565 | { |
594 | { |
566 | #if EV_AVOID_STDIO |
595 | #if EV_AVOID_STDIO |
567 | const char *err = strerror (errno); |
|
|
568 | |
|
|
569 | ev_printerr (msg); |
596 | ev_printerr (msg); |
570 | ev_printerr (": "); |
597 | ev_printerr (": "); |
571 | ev_printerr (err); |
598 | ev_printerr (strerror (errno)); |
572 | ev_printerr ("\n"); |
599 | ev_printerr ("\n"); |
573 | #else |
600 | #else |
574 | perror (msg); |
601 | perror (msg); |
575 | #endif |
602 | #endif |
576 | abort (); |
603 | abort (); |
… | |
… | |
610 | ptr = alloc (ptr, size); |
637 | ptr = alloc (ptr, size); |
611 | |
638 | |
612 | if (!ptr && size) |
639 | if (!ptr && size) |
613 | { |
640 | { |
614 | #if EV_AVOID_STDIO |
641 | #if EV_AVOID_STDIO |
615 | ev_printerr ("libev: memory allocation failed, aborting.\n"); |
642 | ev_printerr ("(libev) memory allocation failed, aborting.\n"); |
616 | #else |
643 | #else |
617 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
644 | fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size); |
618 | #endif |
645 | #endif |
619 | abort (); |
646 | abort (); |
620 | } |
647 | } |
621 | |
648 | |
622 | return ptr; |
649 | return ptr; |
… | |
… | |
639 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
666 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
640 | unsigned char unused; |
667 | unsigned char unused; |
641 | #if EV_USE_EPOLL |
668 | #if EV_USE_EPOLL |
642 | unsigned int egen; /* generation counter to counter epoll bugs */ |
669 | unsigned int egen; /* generation counter to counter epoll bugs */ |
643 | #endif |
670 | #endif |
644 | #if EV_SELECT_IS_WINSOCKET |
671 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
645 | SOCKET handle; |
672 | SOCKET handle; |
|
|
673 | #endif |
|
|
674 | #if EV_USE_IOCP |
|
|
675 | OVERLAPPED or, ow; |
646 | #endif |
676 | #endif |
647 | } ANFD; |
677 | } ANFD; |
648 | |
678 | |
649 | /* stores the pending event set for a given watcher */ |
679 | /* stores the pending event set for a given watcher */ |
650 | typedef struct |
680 | typedef struct |
… | |
… | |
715 | # define EV_RELEASE_CB (void)0 |
745 | # define EV_RELEASE_CB (void)0 |
716 | # define EV_ACQUIRE_CB (void)0 |
746 | # define EV_ACQUIRE_CB (void)0 |
717 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
747 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
718 | #endif |
748 | #endif |
719 | |
749 | |
720 | #define EVUNLOOP_RECURSE 0x80 |
750 | #define EVBREAK_RECURSE 0x80 |
721 | |
751 | |
722 | /*****************************************************************************/ |
752 | /*****************************************************************************/ |
723 | |
753 | |
724 | #ifndef EV_HAVE_EV_TIME |
754 | #ifndef EV_HAVE_EV_TIME |
725 | ev_tstamp |
755 | ev_tstamp |
… | |
… | |
769 | if (delay > 0.) |
799 | if (delay > 0.) |
770 | { |
800 | { |
771 | #if EV_USE_NANOSLEEP |
801 | #if EV_USE_NANOSLEEP |
772 | struct timespec ts; |
802 | struct timespec ts; |
773 | |
803 | |
774 | ts.tv_sec = (time_t)delay; |
804 | EV_TS_SET (ts, delay); |
775 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
776 | |
|
|
777 | nanosleep (&ts, 0); |
805 | nanosleep (&ts, 0); |
778 | #elif defined(_WIN32) |
806 | #elif defined(_WIN32) |
779 | Sleep ((unsigned long)(delay * 1e3)); |
807 | Sleep ((unsigned long)(delay * 1e3)); |
780 | #else |
808 | #else |
781 | struct timeval tv; |
809 | struct timeval tv; |
782 | |
810 | |
783 | tv.tv_sec = (time_t)delay; |
|
|
784 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
|
|
785 | |
|
|
786 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
811 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
787 | /* something not guaranteed by newer posix versions, but guaranteed */ |
812 | /* something not guaranteed by newer posix versions, but guaranteed */ |
788 | /* by older ones */ |
813 | /* by older ones */ |
|
|
814 | EV_TV_SET (tv, delay); |
789 | select (0, 0, 0, 0, &tv); |
815 | select (0, 0, 0, 0, &tv); |
790 | #endif |
816 | #endif |
791 | } |
817 | } |
792 | } |
818 | } |
793 | |
819 | |
794 | /*****************************************************************************/ |
820 | /*****************************************************************************/ |
795 | |
821 | |
796 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
822 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
797 | |
823 | |
798 | /* find a suitable new size for the given array, */ |
824 | /* find a suitable new size for the given array, */ |
799 | /* hopefully by rounding to a ncie-to-malloc size */ |
825 | /* hopefully by rounding to a nice-to-malloc size */ |
800 | inline_size int |
826 | inline_size int |
801 | array_nextsize (int elem, int cur, int cnt) |
827 | array_nextsize (int elem, int cur, int cnt) |
802 | { |
828 | { |
803 | int ncur = cur + 1; |
829 | int ncur = cur + 1; |
804 | |
830 | |
… | |
… | |
945 | { |
971 | { |
946 | int fd = fdchanges [i]; |
972 | int fd = fdchanges [i]; |
947 | ANFD *anfd = anfds + fd; |
973 | ANFD *anfd = anfds + fd; |
948 | ev_io *w; |
974 | ev_io *w; |
949 | |
975 | |
950 | unsigned char events = 0; |
976 | unsigned char o_events = anfd->events; |
|
|
977 | unsigned char o_reify = anfd->reify; |
951 | |
978 | |
952 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
979 | anfd->reify = 0; |
953 | events |= (unsigned char)w->events; |
|
|
954 | |
980 | |
955 | #if EV_SELECT_IS_WINSOCKET |
981 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
956 | if (events) |
982 | if (o_reify & EV__IOFDSET) |
957 | { |
983 | { |
958 | unsigned long arg; |
984 | unsigned long arg; |
959 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
985 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
960 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
986 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
|
|
987 | printf ("oi %d %x\n", fd, anfd->handle);//D |
961 | } |
988 | } |
962 | #endif |
989 | #endif |
963 | |
990 | |
|
|
991 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
964 | { |
992 | { |
965 | unsigned char o_events = anfd->events; |
|
|
966 | unsigned char o_reify = anfd->reify; |
|
|
967 | |
|
|
968 | anfd->reify = 0; |
|
|
969 | anfd->events = events; |
993 | anfd->events = 0; |
970 | |
994 | |
971 | if (o_events != events || o_reify & EV__IOFDSET) |
995 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
|
|
996 | anfd->events |= (unsigned char)w->events; |
|
|
997 | |
|
|
998 | if (o_events != anfd->events) |
|
|
999 | o_reify = EV__IOFDSET; /* actually |= */ |
|
|
1000 | } |
|
|
1001 | |
|
|
1002 | if (o_reify & EV__IOFDSET) |
972 | backend_modify (EV_A_ fd, o_events, events); |
1003 | backend_modify (EV_A_ fd, o_events, anfd->events); |
973 | } |
|
|
974 | } |
1004 | } |
975 | |
1005 | |
976 | fdchangecnt = 0; |
1006 | fdchangecnt = 0; |
977 | } |
1007 | } |
978 | |
1008 | |
… | |
… | |
1071 | } |
1101 | } |
1072 | |
1102 | |
1073 | /*****************************************************************************/ |
1103 | /*****************************************************************************/ |
1074 | |
1104 | |
1075 | /* |
1105 | /* |
1076 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
1106 | * the heap functions want a real array index. array index 0 is guaranteed to not |
1077 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
1107 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
1078 | * the branching factor of the d-tree. |
1108 | * the branching factor of the d-tree. |
1079 | */ |
1109 | */ |
1080 | |
1110 | |
1081 | /* |
1111 | /* |
… | |
… | |
1281 | uint64_t counter = 1; |
1311 | uint64_t counter = 1; |
1282 | write (evfd, &counter, sizeof (uint64_t)); |
1312 | write (evfd, &counter, sizeof (uint64_t)); |
1283 | } |
1313 | } |
1284 | else |
1314 | else |
1285 | #endif |
1315 | #endif |
|
|
1316 | /* win32 people keep sending patches that change this write() to send() */ |
|
|
1317 | /* and then run away. but send() is wrong, it wants a socket handle on win32 */ |
|
|
1318 | /* so when you think this write should be a send instead, please find out */ |
|
|
1319 | /* where your send() is from - it's definitely not the microsoft send, and */ |
|
|
1320 | /* tell me. thank you. */ |
1286 | write (evpipe [1], &dummy, 1); |
1321 | write (evpipe [1], &dummy, 1); |
1287 | |
1322 | |
1288 | errno = old_errno; |
1323 | errno = old_errno; |
1289 | } |
1324 | } |
1290 | } |
1325 | } |
… | |
… | |
1304 | } |
1339 | } |
1305 | else |
1340 | else |
1306 | #endif |
1341 | #endif |
1307 | { |
1342 | { |
1308 | char dummy; |
1343 | char dummy; |
|
|
1344 | /* see discussion in evpipe_write when you think this read should be recv in win32 */ |
1309 | read (evpipe [0], &dummy, 1); |
1345 | read (evpipe [0], &dummy, 1); |
1310 | } |
1346 | } |
1311 | |
1347 | |
1312 | if (sig_pending) |
1348 | if (sig_pending) |
1313 | { |
1349 | { |
… | |
… | |
1333 | #endif |
1369 | #endif |
1334 | } |
1370 | } |
1335 | |
1371 | |
1336 | /*****************************************************************************/ |
1372 | /*****************************************************************************/ |
1337 | |
1373 | |
|
|
1374 | void |
|
|
1375 | ev_feed_signal (int signum) |
|
|
1376 | { |
|
|
1377 | #if EV_MULTIPLICITY |
|
|
1378 | EV_P = signals [signum - 1].loop; |
|
|
1379 | |
|
|
1380 | if (!EV_A) |
|
|
1381 | return; |
|
|
1382 | #endif |
|
|
1383 | |
|
|
1384 | signals [signum - 1].pending = 1; |
|
|
1385 | evpipe_write (EV_A_ &sig_pending); |
|
|
1386 | } |
|
|
1387 | |
1338 | static void |
1388 | static void |
1339 | ev_sighandler (int signum) |
1389 | ev_sighandler (int signum) |
1340 | { |
1390 | { |
1341 | #if EV_MULTIPLICITY |
|
|
1342 | EV_P = signals [signum - 1].loop; |
|
|
1343 | #endif |
|
|
1344 | |
|
|
1345 | #ifdef _WIN32 |
1391 | #ifdef _WIN32 |
1346 | signal (signum, ev_sighandler); |
1392 | signal (signum, ev_sighandler); |
1347 | #endif |
1393 | #endif |
1348 | |
1394 | |
1349 | signals [signum - 1].pending = 1; |
1395 | ev_feed_signal (signum); |
1350 | evpipe_write (EV_A_ &sig_pending); |
|
|
1351 | } |
1396 | } |
1352 | |
1397 | |
1353 | void noinline |
1398 | void noinline |
1354 | ev_feed_signal_event (EV_P_ int signum) |
1399 | ev_feed_signal_event (EV_P_ int signum) |
1355 | { |
1400 | { |
… | |
… | |
1455 | |
1500 | |
1456 | #endif |
1501 | #endif |
1457 | |
1502 | |
1458 | /*****************************************************************************/ |
1503 | /*****************************************************************************/ |
1459 | |
1504 | |
|
|
1505 | #if EV_USE_IOCP |
|
|
1506 | # include "ev_iocp.c" |
|
|
1507 | #endif |
1460 | #if EV_USE_PORT |
1508 | #if EV_USE_PORT |
1461 | # include "ev_port.c" |
1509 | # include "ev_port.c" |
1462 | #endif |
1510 | #endif |
1463 | #if EV_USE_KQUEUE |
1511 | #if EV_USE_KQUEUE |
1464 | # include "ev_kqueue.c" |
1512 | # include "ev_kqueue.c" |
… | |
… | |
1537 | ev_embeddable_backends (void) |
1585 | ev_embeddable_backends (void) |
1538 | { |
1586 | { |
1539 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
1587 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
1540 | |
1588 | |
1541 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1589 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1542 | /* please fix it and tell me how to detect the fix */ |
1590 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
1543 | flags &= ~EVBACKEND_EPOLL; |
1591 | flags &= ~EVBACKEND_EPOLL; |
1544 | |
1592 | |
1545 | return flags; |
1593 | return flags; |
1546 | } |
1594 | } |
1547 | |
1595 | |
1548 | unsigned int |
1596 | unsigned int |
… | |
… | |
1604 | static void noinline |
1652 | static void noinline |
1605 | loop_init (EV_P_ unsigned int flags) |
1653 | loop_init (EV_P_ unsigned int flags) |
1606 | { |
1654 | { |
1607 | if (!backend) |
1655 | if (!backend) |
1608 | { |
1656 | { |
|
|
1657 | origflags = flags; |
|
|
1658 | |
1609 | #if EV_USE_REALTIME |
1659 | #if EV_USE_REALTIME |
1610 | if (!have_realtime) |
1660 | if (!have_realtime) |
1611 | { |
1661 | { |
1612 | struct timespec ts; |
1662 | struct timespec ts; |
1613 | |
1663 | |
… | |
… | |
1658 | #endif |
1708 | #endif |
1659 | #if EV_USE_SIGNALFD |
1709 | #if EV_USE_SIGNALFD |
1660 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
1710 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
1661 | #endif |
1711 | #endif |
1662 | |
1712 | |
1663 | if (!(flags & 0x0000ffffU)) |
1713 | if (!(flags & EVBACKEND_MASK)) |
1664 | flags |= ev_recommended_backends (); |
1714 | flags |= ev_recommended_backends (); |
1665 | |
1715 | |
|
|
1716 | #if EV_USE_IOCP |
|
|
1717 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
|
|
1718 | #endif |
1666 | #if EV_USE_PORT |
1719 | #if EV_USE_PORT |
1667 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1720 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1668 | #endif |
1721 | #endif |
1669 | #if EV_USE_KQUEUE |
1722 | #if EV_USE_KQUEUE |
1670 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
1723 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
… | |
… | |
1687 | #endif |
1740 | #endif |
1688 | } |
1741 | } |
1689 | } |
1742 | } |
1690 | |
1743 | |
1691 | /* free up a loop structure */ |
1744 | /* free up a loop structure */ |
1692 | static void noinline |
1745 | void |
1693 | loop_destroy (EV_P) |
1746 | ev_loop_destroy (EV_P) |
1694 | { |
1747 | { |
1695 | int i; |
1748 | int i; |
|
|
1749 | |
|
|
1750 | #if EV_MULTIPLICITY |
|
|
1751 | /* mimic free (0) */ |
|
|
1752 | if (!EV_A) |
|
|
1753 | return; |
|
|
1754 | #endif |
|
|
1755 | |
|
|
1756 | #if EV_CLEANUP_ENABLE |
|
|
1757 | /* queue cleanup watchers (and execute them) */ |
|
|
1758 | if (expect_false (cleanupcnt)) |
|
|
1759 | { |
|
|
1760 | queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); |
|
|
1761 | EV_INVOKE_PENDING; |
|
|
1762 | } |
|
|
1763 | #endif |
|
|
1764 | |
|
|
1765 | #if EV_CHILD_ENABLE |
|
|
1766 | if (ev_is_active (&childev)) |
|
|
1767 | { |
|
|
1768 | ev_ref (EV_A); /* child watcher */ |
|
|
1769 | ev_signal_stop (EV_A_ &childev); |
|
|
1770 | } |
|
|
1771 | #endif |
1696 | |
1772 | |
1697 | if (ev_is_active (&pipe_w)) |
1773 | if (ev_is_active (&pipe_w)) |
1698 | { |
1774 | { |
1699 | /*ev_ref (EV_A);*/ |
1775 | /*ev_ref (EV_A);*/ |
1700 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1776 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
… | |
… | |
1722 | #endif |
1798 | #endif |
1723 | |
1799 | |
1724 | if (backend_fd >= 0) |
1800 | if (backend_fd >= 0) |
1725 | close (backend_fd); |
1801 | close (backend_fd); |
1726 | |
1802 | |
|
|
1803 | #if EV_USE_IOCP |
|
|
1804 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
|
|
1805 | #endif |
1727 | #if EV_USE_PORT |
1806 | #if EV_USE_PORT |
1728 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
1807 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
1729 | #endif |
1808 | #endif |
1730 | #if EV_USE_KQUEUE |
1809 | #if EV_USE_KQUEUE |
1731 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
1810 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
… | |
… | |
1758 | array_free (periodic, EMPTY); |
1837 | array_free (periodic, EMPTY); |
1759 | #endif |
1838 | #endif |
1760 | #if EV_FORK_ENABLE |
1839 | #if EV_FORK_ENABLE |
1761 | array_free (fork, EMPTY); |
1840 | array_free (fork, EMPTY); |
1762 | #endif |
1841 | #endif |
|
|
1842 | #if EV_CLEANUP_ENABLE |
|
|
1843 | array_free (cleanup, EMPTY); |
|
|
1844 | #endif |
1763 | array_free (prepare, EMPTY); |
1845 | array_free (prepare, EMPTY); |
1764 | array_free (check, EMPTY); |
1846 | array_free (check, EMPTY); |
1765 | #if EV_ASYNC_ENABLE |
1847 | #if EV_ASYNC_ENABLE |
1766 | array_free (async, EMPTY); |
1848 | array_free (async, EMPTY); |
1767 | #endif |
1849 | #endif |
1768 | |
1850 | |
1769 | backend = 0; |
1851 | backend = 0; |
|
|
1852 | |
|
|
1853 | #if EV_MULTIPLICITY |
|
|
1854 | if (ev_is_default_loop (EV_A)) |
|
|
1855 | #endif |
|
|
1856 | ev_default_loop_ptr = 0; |
|
|
1857 | #if EV_MULTIPLICITY |
|
|
1858 | else |
|
|
1859 | ev_free (EV_A); |
|
|
1860 | #endif |
1770 | } |
1861 | } |
1771 | |
1862 | |
1772 | #if EV_USE_INOTIFY |
1863 | #if EV_USE_INOTIFY |
1773 | inline_size void infy_fork (EV_P); |
1864 | inline_size void infy_fork (EV_P); |
1774 | #endif |
1865 | #endif |
… | |
… | |
1833 | loop_init (EV_A_ flags); |
1924 | loop_init (EV_A_ flags); |
1834 | |
1925 | |
1835 | if (ev_backend (EV_A)) |
1926 | if (ev_backend (EV_A)) |
1836 | return EV_A; |
1927 | return EV_A; |
1837 | |
1928 | |
|
|
1929 | ev_free (EV_A); |
1838 | return 0; |
1930 | return 0; |
1839 | } |
1931 | } |
1840 | |
1932 | |
1841 | void |
|
|
1842 | ev_loop_destroy (EV_P) |
|
|
1843 | { |
|
|
1844 | loop_destroy (EV_A); |
|
|
1845 | ev_free (loop); |
|
|
1846 | } |
|
|
1847 | |
|
|
1848 | void |
|
|
1849 | ev_loop_fork (EV_P) |
|
|
1850 | { |
|
|
1851 | postfork = 1; /* must be in line with ev_default_fork */ |
|
|
1852 | } |
|
|
1853 | #endif /* multiplicity */ |
1933 | #endif /* multiplicity */ |
1854 | |
1934 | |
1855 | #if EV_VERIFY |
1935 | #if EV_VERIFY |
1856 | static void noinline |
1936 | static void noinline |
1857 | verify_watcher (EV_P_ W w) |
1937 | verify_watcher (EV_P_ W w) |
… | |
… | |
1932 | #if EV_FORK_ENABLE |
2012 | #if EV_FORK_ENABLE |
1933 | assert (forkmax >= forkcnt); |
2013 | assert (forkmax >= forkcnt); |
1934 | array_verify (EV_A_ (W *)forks, forkcnt); |
2014 | array_verify (EV_A_ (W *)forks, forkcnt); |
1935 | #endif |
2015 | #endif |
1936 | |
2016 | |
|
|
2017 | #if EV_CLEANUP_ENABLE |
|
|
2018 | assert (cleanupmax >= cleanupcnt); |
|
|
2019 | array_verify (EV_A_ (W *)cleanups, cleanupcnt); |
|
|
2020 | #endif |
|
|
2021 | |
1937 | #if EV_ASYNC_ENABLE |
2022 | #if EV_ASYNC_ENABLE |
1938 | assert (asyncmax >= asynccnt); |
2023 | assert (asyncmax >= asynccnt); |
1939 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
2024 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
1940 | #endif |
2025 | #endif |
1941 | |
2026 | |
… | |
… | |
1959 | } |
2044 | } |
1960 | #endif |
2045 | #endif |
1961 | |
2046 | |
1962 | #if EV_MULTIPLICITY |
2047 | #if EV_MULTIPLICITY |
1963 | struct ev_loop * |
2048 | struct ev_loop * |
1964 | ev_default_loop_init (unsigned int flags) |
|
|
1965 | #else |
2049 | #else |
1966 | int |
2050 | int |
|
|
2051 | #endif |
1967 | ev_default_loop (unsigned int flags) |
2052 | ev_default_loop (unsigned int flags) |
1968 | #endif |
|
|
1969 | { |
2053 | { |
1970 | if (!ev_default_loop_ptr) |
2054 | if (!ev_default_loop_ptr) |
1971 | { |
2055 | { |
1972 | #if EV_MULTIPLICITY |
2056 | #if EV_MULTIPLICITY |
1973 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
2057 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
… | |
… | |
1992 | |
2076 | |
1993 | return ev_default_loop_ptr; |
2077 | return ev_default_loop_ptr; |
1994 | } |
2078 | } |
1995 | |
2079 | |
1996 | void |
2080 | void |
1997 | ev_default_destroy (void) |
2081 | ev_loop_fork (EV_P) |
1998 | { |
2082 | { |
1999 | #if EV_MULTIPLICITY |
|
|
2000 | EV_P = ev_default_loop_ptr; |
|
|
2001 | #endif |
|
|
2002 | |
|
|
2003 | ev_default_loop_ptr = 0; |
|
|
2004 | |
|
|
2005 | #if EV_CHILD_ENABLE |
|
|
2006 | ev_ref (EV_A); /* child watcher */ |
|
|
2007 | ev_signal_stop (EV_A_ &childev); |
|
|
2008 | #endif |
|
|
2009 | |
|
|
2010 | loop_destroy (EV_A); |
|
|
2011 | } |
|
|
2012 | |
|
|
2013 | void |
|
|
2014 | ev_default_fork (void) |
|
|
2015 | { |
|
|
2016 | #if EV_MULTIPLICITY |
|
|
2017 | EV_P = ev_default_loop_ptr; |
|
|
2018 | #endif |
|
|
2019 | |
|
|
2020 | postfork = 1; /* must be in line with ev_loop_fork */ |
2083 | postfork = 1; /* must be in line with ev_default_fork */ |
2021 | } |
2084 | } |
2022 | |
2085 | |
2023 | /*****************************************************************************/ |
2086 | /*****************************************************************************/ |
2024 | |
2087 | |
2025 | void |
2088 | void |
… | |
… | |
2179 | feed_reverse_done (EV_A_ EV_PERIODIC); |
2242 | feed_reverse_done (EV_A_ EV_PERIODIC); |
2180 | } |
2243 | } |
2181 | } |
2244 | } |
2182 | |
2245 | |
2183 | /* simply recalculate all periodics */ |
2246 | /* simply recalculate all periodics */ |
2184 | /* TODO: maybe ensure that at leats one event happens when jumping forward? */ |
2247 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
2185 | static void noinline |
2248 | static void noinline |
2186 | periodics_reschedule (EV_P) |
2249 | periodics_reschedule (EV_P) |
2187 | { |
2250 | { |
2188 | int i; |
2251 | int i; |
2189 | |
2252 | |
… | |
… | |
2285 | mn_now = ev_rt_now; |
2348 | mn_now = ev_rt_now; |
2286 | } |
2349 | } |
2287 | } |
2350 | } |
2288 | |
2351 | |
2289 | void |
2352 | void |
2290 | ev_loop (EV_P_ int flags) |
2353 | ev_run (EV_P_ int flags) |
2291 | { |
2354 | { |
2292 | #if EV_FEATURE_API |
2355 | #if EV_FEATURE_API |
2293 | ++loop_depth; |
2356 | ++loop_depth; |
2294 | #endif |
2357 | #endif |
2295 | |
2358 | |
2296 | assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); |
2359 | assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE)); |
2297 | |
2360 | |
2298 | loop_done = EVUNLOOP_CANCEL; |
2361 | loop_done = EVBREAK_CANCEL; |
2299 | |
2362 | |
2300 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
2363 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
2301 | |
2364 | |
2302 | do |
2365 | do |
2303 | { |
2366 | { |
… | |
… | |
2346 | /* calculate blocking time */ |
2409 | /* calculate blocking time */ |
2347 | { |
2410 | { |
2348 | ev_tstamp waittime = 0.; |
2411 | ev_tstamp waittime = 0.; |
2349 | ev_tstamp sleeptime = 0.; |
2412 | ev_tstamp sleeptime = 0.; |
2350 | |
2413 | |
|
|
2414 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2415 | ev_tstamp prev_mn_now = mn_now; |
|
|
2416 | |
|
|
2417 | /* update time to cancel out callback processing overhead */ |
|
|
2418 | time_update (EV_A_ 1e100); |
|
|
2419 | |
2351 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2420 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt))) |
2352 | { |
2421 | { |
2353 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2354 | ev_tstamp prev_mn_now = mn_now; |
|
|
2355 | |
|
|
2356 | /* update time to cancel out callback processing overhead */ |
|
|
2357 | time_update (EV_A_ 1e100); |
|
|
2358 | |
|
|
2359 | waittime = MAX_BLOCKTIME; |
2422 | waittime = MAX_BLOCKTIME; |
2360 | |
2423 | |
2361 | if (timercnt) |
2424 | if (timercnt) |
2362 | { |
2425 | { |
2363 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
2426 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
… | |
… | |
2393 | } |
2456 | } |
2394 | |
2457 | |
2395 | #if EV_FEATURE_API |
2458 | #if EV_FEATURE_API |
2396 | ++loop_count; |
2459 | ++loop_count; |
2397 | #endif |
2460 | #endif |
2398 | assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ |
2461 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
2399 | backend_poll (EV_A_ waittime); |
2462 | backend_poll (EV_A_ waittime); |
2400 | assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ |
2463 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
2401 | |
2464 | |
2402 | /* update ev_rt_now, do magic */ |
2465 | /* update ev_rt_now, do magic */ |
2403 | time_update (EV_A_ waittime + sleeptime); |
2466 | time_update (EV_A_ waittime + sleeptime); |
2404 | } |
2467 | } |
2405 | |
2468 | |
… | |
… | |
2423 | EV_INVOKE_PENDING; |
2486 | EV_INVOKE_PENDING; |
2424 | } |
2487 | } |
2425 | while (expect_true ( |
2488 | while (expect_true ( |
2426 | activecnt |
2489 | activecnt |
2427 | && !loop_done |
2490 | && !loop_done |
2428 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2491 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
2429 | )); |
2492 | )); |
2430 | |
2493 | |
2431 | if (loop_done == EVUNLOOP_ONE) |
2494 | if (loop_done == EVBREAK_ONE) |
2432 | loop_done = EVUNLOOP_CANCEL; |
2495 | loop_done = EVBREAK_CANCEL; |
2433 | |
2496 | |
2434 | #if EV_FEATURE_API |
2497 | #if EV_FEATURE_API |
2435 | --loop_depth; |
2498 | --loop_depth; |
2436 | #endif |
2499 | #endif |
2437 | } |
2500 | } |
2438 | |
2501 | |
2439 | void |
2502 | void |
2440 | ev_unloop (EV_P_ int how) |
2503 | ev_break (EV_P_ int how) |
2441 | { |
2504 | { |
2442 | loop_done = how; |
2505 | loop_done = how; |
2443 | } |
2506 | } |
2444 | |
2507 | |
2445 | void |
2508 | void |
… | |
… | |
2593 | EV_FREQUENT_CHECK; |
2656 | EV_FREQUENT_CHECK; |
2594 | |
2657 | |
2595 | wlist_del (&anfds[w->fd].head, (WL)w); |
2658 | wlist_del (&anfds[w->fd].head, (WL)w); |
2596 | ev_stop (EV_A_ (W)w); |
2659 | ev_stop (EV_A_ (W)w); |
2597 | |
2660 | |
2598 | fd_change (EV_A_ w->fd, 1); |
2661 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
2599 | |
2662 | |
2600 | EV_FREQUENT_CHECK; |
2663 | EV_FREQUENT_CHECK; |
2601 | } |
2664 | } |
2602 | |
2665 | |
2603 | void noinline |
2666 | void noinline |
… | |
… | |
2827 | sa.sa_handler = ev_sighandler; |
2890 | sa.sa_handler = ev_sighandler; |
2828 | sigfillset (&sa.sa_mask); |
2891 | sigfillset (&sa.sa_mask); |
2829 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2892 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2830 | sigaction (w->signum, &sa, 0); |
2893 | sigaction (w->signum, &sa, 0); |
2831 | |
2894 | |
|
|
2895 | if (origflags & EVFLAG_NOSIGMASK) |
|
|
2896 | { |
2832 | sigemptyset (&sa.sa_mask); |
2897 | sigemptyset (&sa.sa_mask); |
2833 | sigaddset (&sa.sa_mask, w->signum); |
2898 | sigaddset (&sa.sa_mask, w->signum); |
2834 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
2899 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
|
|
2900 | } |
2835 | #endif |
2901 | #endif |
2836 | } |
2902 | } |
2837 | |
2903 | |
2838 | EV_FREQUENT_CHECK; |
2904 | EV_FREQUENT_CHECK; |
2839 | } |
2905 | } |
… | |
… | |
3055 | { |
3121 | { |
3056 | struct inotify_event *ev = (struct inotify_event *)(buf + ofs); |
3122 | struct inotify_event *ev = (struct inotify_event *)(buf + ofs); |
3057 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3123 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3058 | ofs += sizeof (struct inotify_event) + ev->len; |
3124 | ofs += sizeof (struct inotify_event) + ev->len; |
3059 | } |
3125 | } |
3060 | } |
|
|
3061 | |
|
|
3062 | inline_size unsigned int |
|
|
3063 | ev_linux_version (void) |
|
|
3064 | { |
|
|
3065 | struct utsname buf; |
|
|
3066 | unsigned int v; |
|
|
3067 | int i; |
|
|
3068 | char *p = buf.release; |
|
|
3069 | |
|
|
3070 | if (uname (&buf)) |
|
|
3071 | return 0; |
|
|
3072 | |
|
|
3073 | for (i = 3+1; --i; ) |
|
|
3074 | { |
|
|
3075 | unsigned int c = 0; |
|
|
3076 | |
|
|
3077 | for (;;) |
|
|
3078 | { |
|
|
3079 | if (*p >= '0' && *p <= '9') |
|
|
3080 | c = c * 10 + *p++ - '0'; |
|
|
3081 | else |
|
|
3082 | { |
|
|
3083 | p += *p == '.'; |
|
|
3084 | break; |
|
|
3085 | } |
|
|
3086 | } |
|
|
3087 | |
|
|
3088 | v = (v << 8) | c; |
|
|
3089 | } |
|
|
3090 | |
|
|
3091 | return v; |
|
|
3092 | } |
3126 | } |
3093 | |
3127 | |
3094 | inline_size void |
3128 | inline_size void |
3095 | ev_check_2625 (EV_P) |
3129 | ev_check_2625 (EV_P) |
3096 | { |
3130 | { |
… | |
… | |
3420 | |
3454 | |
3421 | #if EV_EMBED_ENABLE |
3455 | #if EV_EMBED_ENABLE |
3422 | void noinline |
3456 | void noinline |
3423 | ev_embed_sweep (EV_P_ ev_embed *w) |
3457 | ev_embed_sweep (EV_P_ ev_embed *w) |
3424 | { |
3458 | { |
3425 | ev_loop (w->other, EVLOOP_NONBLOCK); |
3459 | ev_run (w->other, EVRUN_NOWAIT); |
3426 | } |
3460 | } |
3427 | |
3461 | |
3428 | static void |
3462 | static void |
3429 | embed_io_cb (EV_P_ ev_io *io, int revents) |
3463 | embed_io_cb (EV_P_ ev_io *io, int revents) |
3430 | { |
3464 | { |
3431 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
3465 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
3432 | |
3466 | |
3433 | if (ev_cb (w)) |
3467 | if (ev_cb (w)) |
3434 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
3468 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
3435 | else |
3469 | else |
3436 | ev_loop (w->other, EVLOOP_NONBLOCK); |
3470 | ev_run (w->other, EVRUN_NOWAIT); |
3437 | } |
3471 | } |
3438 | |
3472 | |
3439 | static void |
3473 | static void |
3440 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3474 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3441 | { |
3475 | { |
… | |
… | |
3445 | EV_P = w->other; |
3479 | EV_P = w->other; |
3446 | |
3480 | |
3447 | while (fdchangecnt) |
3481 | while (fdchangecnt) |
3448 | { |
3482 | { |
3449 | fd_reify (EV_A); |
3483 | fd_reify (EV_A); |
3450 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3484 | ev_run (EV_A_ EVRUN_NOWAIT); |
3451 | } |
3485 | } |
3452 | } |
3486 | } |
3453 | } |
3487 | } |
3454 | |
3488 | |
3455 | static void |
3489 | static void |
… | |
… | |
3461 | |
3495 | |
3462 | { |
3496 | { |
3463 | EV_P = w->other; |
3497 | EV_P = w->other; |
3464 | |
3498 | |
3465 | ev_loop_fork (EV_A); |
3499 | ev_loop_fork (EV_A); |
3466 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3500 | ev_run (EV_A_ EVRUN_NOWAIT); |
3467 | } |
3501 | } |
3468 | |
3502 | |
3469 | ev_embed_start (EV_A_ w); |
3503 | ev_embed_start (EV_A_ w); |
3470 | } |
3504 | } |
3471 | |
3505 | |
… | |
… | |
3563 | |
3597 | |
3564 | EV_FREQUENT_CHECK; |
3598 | EV_FREQUENT_CHECK; |
3565 | } |
3599 | } |
3566 | #endif |
3600 | #endif |
3567 | |
3601 | |
3568 | #if EV_ASYNC_ENABLE |
3602 | #if EV_CLEANUP_ENABLE |
3569 | void |
3603 | void |
3570 | ev_async_start (EV_P_ ev_async *w) |
3604 | ev_cleanup_start (EV_P_ ev_cleanup *w) |
3571 | { |
3605 | { |
3572 | if (expect_false (ev_is_active (w))) |
3606 | if (expect_false (ev_is_active (w))) |
3573 | return; |
3607 | return; |
|
|
3608 | |
|
|
3609 | EV_FREQUENT_CHECK; |
|
|
3610 | |
|
|
3611 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
|
|
3612 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); |
|
|
3613 | cleanups [cleanupcnt - 1] = w; |
|
|
3614 | |
|
|
3615 | /* cleanup watchers should never keep a refcount on the loop */ |
|
|
3616 | ev_unref (EV_A); |
|
|
3617 | EV_FREQUENT_CHECK; |
|
|
3618 | } |
|
|
3619 | |
|
|
3620 | void |
|
|
3621 | ev_cleanup_stop (EV_P_ ev_cleanup *w) |
|
|
3622 | { |
|
|
3623 | clear_pending (EV_A_ (W)w); |
|
|
3624 | if (expect_false (!ev_is_active (w))) |
|
|
3625 | return; |
|
|
3626 | |
|
|
3627 | EV_FREQUENT_CHECK; |
|
|
3628 | ev_ref (EV_A); |
|
|
3629 | |
|
|
3630 | { |
|
|
3631 | int active = ev_active (w); |
|
|
3632 | |
|
|
3633 | cleanups [active - 1] = cleanups [--cleanupcnt]; |
|
|
3634 | ev_active (cleanups [active - 1]) = active; |
|
|
3635 | } |
|
|
3636 | |
|
|
3637 | ev_stop (EV_A_ (W)w); |
|
|
3638 | |
|
|
3639 | EV_FREQUENT_CHECK; |
|
|
3640 | } |
|
|
3641 | #endif |
|
|
3642 | |
|
|
3643 | #if EV_ASYNC_ENABLE |
|
|
3644 | void |
|
|
3645 | ev_async_start (EV_P_ ev_async *w) |
|
|
3646 | { |
|
|
3647 | if (expect_false (ev_is_active (w))) |
|
|
3648 | return; |
|
|
3649 | |
|
|
3650 | w->sent = 0; |
3574 | |
3651 | |
3575 | evpipe_init (EV_A); |
3652 | evpipe_init (EV_A); |
3576 | |
3653 | |
3577 | EV_FREQUENT_CHECK; |
3654 | EV_FREQUENT_CHECK; |
3578 | |
3655 | |
… | |
… | |
3798 | |
3875 | |
3799 | #if EV_MULTIPLICITY |
3876 | #if EV_MULTIPLICITY |
3800 | #include "ev_wrap.h" |
3877 | #include "ev_wrap.h" |
3801 | #endif |
3878 | #endif |
3802 | |
3879 | |
3803 | #ifdef __cplusplus |
3880 | EV_CPP(}) |
3804 | } |
|
|
3805 | #endif |
|
|
3806 | |
3881 | |