… | |
… | |
133 | # else |
133 | # else |
134 | # define EV_USE_INOTIFY 0 |
134 | # define EV_USE_INOTIFY 0 |
135 | # endif |
135 | # endif |
136 | # endif |
136 | # endif |
137 | |
137 | |
|
|
138 | # ifndef EV_USE_SIGNALFD |
|
|
139 | # if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H |
|
|
140 | # define EV_USE_SIGNALFD 1 |
|
|
141 | # else |
|
|
142 | # define EV_USE_SIGNALFD 0 |
|
|
143 | # endif |
|
|
144 | # endif |
|
|
145 | |
138 | # ifndef EV_USE_EVENTFD |
146 | # ifndef EV_USE_EVENTFD |
139 | # if HAVE_EVENTFD |
147 | # if HAVE_EVENTFD |
140 | # define EV_USE_EVENTFD 1 |
148 | # define EV_USE_EVENTFD 1 |
141 | # else |
149 | # else |
142 | # define EV_USE_EVENTFD 0 |
150 | # define EV_USE_EVENTFD 0 |
… | |
… | |
178 | # endif |
186 | # endif |
179 | #endif |
187 | #endif |
180 | |
188 | |
181 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
189 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
182 | |
190 | |
|
|
191 | /* try to deduce the maximum number of signals on this platform */ |
|
|
192 | #if defined (EV_NSIG) |
|
|
193 | /* use what's provided */ |
|
|
194 | #elif defined (NSIG) |
|
|
195 | # define EV_NSIG (NSIG) |
|
|
196 | #elif defined(_NSIG) |
|
|
197 | # define EV_NSIG (_NSIG) |
|
|
198 | #elif defined (SIGMAX) |
|
|
199 | # define EV_NSIG (SIGMAX+1) |
|
|
200 | #elif defined (SIG_MAX) |
|
|
201 | # define EV_NSIG (SIG_MAX+1) |
|
|
202 | #elif defined (_SIG_MAX) |
|
|
203 | # define EV_NSIG (_SIG_MAX+1) |
|
|
204 | #elif defined (MAXSIG) |
|
|
205 | # define EV_NSIG (MAXSIG+1) |
|
|
206 | #elif defined (MAX_SIG) |
|
|
207 | # define EV_NSIG (MAX_SIG+1) |
|
|
208 | #elif defined (SIGARRAYSIZE) |
|
|
209 | # define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */ |
|
|
210 | #elif defined (_sys_nsig) |
|
|
211 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
|
|
212 | #else |
|
|
213 | # error "unable to find value for NSIG, please report" |
|
|
214 | /* to make it compile regardless, just remove the above line */ |
|
|
215 | # define EV_NSIG 65 |
|
|
216 | #endif |
|
|
217 | |
183 | #ifndef EV_USE_CLOCK_SYSCALL |
218 | #ifndef EV_USE_CLOCK_SYSCALL |
184 | # if __linux && __GLIBC__ >= 2 |
219 | # if __linux && __GLIBC__ >= 2 |
185 | # define EV_USE_CLOCK_SYSCALL 1 |
220 | # define EV_USE_CLOCK_SYSCALL 1 |
186 | # else |
221 | # else |
187 | # define EV_USE_CLOCK_SYSCALL 0 |
222 | # define EV_USE_CLOCK_SYSCALL 0 |
… | |
… | |
263 | #ifndef EV_USE_EVENTFD |
298 | #ifndef EV_USE_EVENTFD |
264 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
299 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
265 | # define EV_USE_EVENTFD 1 |
300 | # define EV_USE_EVENTFD 1 |
266 | # else |
301 | # else |
267 | # define EV_USE_EVENTFD 0 |
302 | # define EV_USE_EVENTFD 0 |
|
|
303 | # endif |
|
|
304 | #endif |
|
|
305 | |
|
|
306 | #ifndef EV_USE_SIGNALFD |
|
|
307 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
|
|
308 | # define EV_USE_SIGNALFD 1 |
|
|
309 | # else |
|
|
310 | # define EV_USE_SIGNALFD 0 |
268 | # endif |
311 | # endif |
269 | #endif |
312 | #endif |
270 | |
313 | |
271 | #if 0 /* debugging */ |
314 | #if 0 /* debugging */ |
272 | # define EV_VERIFY 3 |
315 | # define EV_VERIFY 3 |
… | |
… | |
339 | #endif |
382 | #endif |
340 | |
383 | |
341 | #if EV_USE_EVENTFD |
384 | #if EV_USE_EVENTFD |
342 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
385 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
343 | # include <stdint.h> |
386 | # include <stdint.h> |
|
|
387 | # ifndef EFD_NONBLOCK |
|
|
388 | # define EFD_NONBLOCK O_NONBLOCK |
|
|
389 | # endif |
|
|
390 | # ifndef EFD_CLOEXEC |
|
|
391 | # ifdef O_CLOEXEC |
|
|
392 | # define EFD_CLOEXEC O_CLOEXEC |
|
|
393 | # else |
|
|
394 | # define EFD_CLOEXEC 02000000 |
|
|
395 | # endif |
|
|
396 | # endif |
344 | # ifdef __cplusplus |
397 | # ifdef __cplusplus |
345 | extern "C" { |
398 | extern "C" { |
346 | # endif |
399 | # endif |
347 | int eventfd (unsigned int initval, int flags); |
400 | int eventfd (unsigned int initval, int flags); |
348 | # ifdef __cplusplus |
401 | # ifdef __cplusplus |
349 | } |
402 | } |
350 | # endif |
403 | # endif |
351 | #endif |
404 | #endif |
|
|
405 | |
|
|
406 | #if EV_USE_SIGNALFD |
|
|
407 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
|
|
408 | # include <stdint.h> |
|
|
409 | # ifndef SFD_NONBLOCK |
|
|
410 | # define SFD_NONBLOCK O_NONBLOCK |
|
|
411 | # endif |
|
|
412 | # ifndef SFD_CLOEXEC |
|
|
413 | # ifdef O_CLOEXEC |
|
|
414 | # define SFD_CLOEXEC O_CLOEXEC |
|
|
415 | # else |
|
|
416 | # define SFD_CLOEXEC 02000000 |
|
|
417 | # endif |
|
|
418 | # endif |
|
|
419 | # ifdef __cplusplus |
|
|
420 | extern "C" { |
|
|
421 | # endif |
|
|
422 | int signalfd (int fd, const sigset_t *mask, int flags); |
|
|
423 | |
|
|
424 | struct signalfd_siginfo |
|
|
425 | { |
|
|
426 | uint32_t ssi_signo; |
|
|
427 | char pad[128 - sizeof (uint32_t)]; |
|
|
428 | }; |
|
|
429 | # ifdef __cplusplus |
|
|
430 | } |
|
|
431 | # endif |
|
|
432 | #endif |
|
|
433 | |
352 | |
434 | |
353 | /**/ |
435 | /**/ |
354 | |
436 | |
355 | #if EV_VERIFY >= 3 |
437 | #if EV_VERIFY >= 3 |
356 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
438 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
… | |
… | |
368 | */ |
450 | */ |
369 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
451 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
370 | |
452 | |
371 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
453 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
372 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
454 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
373 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
|
|
374 | |
455 | |
375 | #if __GNUC__ >= 4 |
456 | #if __GNUC__ >= 4 |
376 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
457 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
377 | # define noinline __attribute__ ((noinline)) |
458 | # define noinline __attribute__ ((noinline)) |
378 | #else |
459 | #else |
… | |
… | |
419 | |
500 | |
420 | #if EV_USE_MONOTONIC |
501 | #if EV_USE_MONOTONIC |
421 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
502 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
422 | #endif |
503 | #endif |
423 | |
504 | |
|
|
505 | #ifndef EV_FD_TO_WIN32_HANDLE |
|
|
506 | # define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
|
|
507 | #endif |
|
|
508 | #ifndef EV_WIN32_HANDLE_TO_FD |
|
|
509 | # define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (fd, 0) |
|
|
510 | #endif |
|
|
511 | #ifndef EV_WIN32_CLOSE_FD |
|
|
512 | # define EV_WIN32_CLOSE_FD(fd) close (fd) |
|
|
513 | #endif |
|
|
514 | |
424 | #ifdef _WIN32 |
515 | #ifdef _WIN32 |
425 | # include "ev_win32.c" |
516 | # include "ev_win32.c" |
426 | #endif |
517 | #endif |
427 | |
518 | |
428 | /*****************************************************************************/ |
519 | /*****************************************************************************/ |
… | |
… | |
490 | #define ev_malloc(size) ev_realloc (0, (size)) |
581 | #define ev_malloc(size) ev_realloc (0, (size)) |
491 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
582 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
492 | |
583 | |
493 | /*****************************************************************************/ |
584 | /*****************************************************************************/ |
494 | |
585 | |
|
|
586 | /* set in reify when reification needed */ |
|
|
587 | #define EV_ANFD_REIFY 1 |
|
|
588 | |
495 | /* file descriptor info structure */ |
589 | /* file descriptor info structure */ |
496 | typedef struct |
590 | typedef struct |
497 | { |
591 | { |
498 | WL head; |
592 | WL head; |
499 | unsigned char events; /* the events watched for */ |
593 | unsigned char events; /* the events watched for */ |
500 | unsigned char reify; /* flag set when this ANFD needs reification */ |
594 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
501 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
595 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
502 | unsigned char unused; |
596 | unsigned char unused; |
503 | #if EV_USE_EPOLL |
597 | #if EV_USE_EPOLL |
504 | unsigned int egen; /* generation counter to counter epoll bugs */ |
598 | unsigned int egen; /* generation counter to counter epoll bugs */ |
505 | #endif |
599 | #endif |
… | |
… | |
567 | |
661 | |
568 | static int ev_default_loop_ptr; |
662 | static int ev_default_loop_ptr; |
569 | |
663 | |
570 | #endif |
664 | #endif |
571 | |
665 | |
|
|
666 | #if EV_MINIMAL < 2 |
|
|
667 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
|
|
668 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
|
|
669 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
|
|
670 | #else |
|
|
671 | # define EV_RELEASE_CB (void)0 |
|
|
672 | # define EV_ACQUIRE_CB (void)0 |
|
|
673 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
|
|
674 | #endif |
|
|
675 | |
|
|
676 | #define EVUNLOOP_RECURSE 0x80 |
|
|
677 | |
572 | /*****************************************************************************/ |
678 | /*****************************************************************************/ |
573 | |
679 | |
574 | #ifndef EV_HAVE_EV_TIME |
680 | #ifndef EV_HAVE_EV_TIME |
575 | ev_tstamp |
681 | ev_tstamp |
576 | ev_time (void) |
682 | ev_time (void) |
… | |
… | |
632 | |
738 | |
633 | tv.tv_sec = (time_t)delay; |
739 | tv.tv_sec = (time_t)delay; |
634 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
740 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
635 | |
741 | |
636 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
742 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
637 | /* somehting not guaranteed by newer posix versions, but guaranteed */ |
743 | /* something not guaranteed by newer posix versions, but guaranteed */ |
638 | /* by older ones */ |
744 | /* by older ones */ |
639 | select (0, 0, 0, 0, &tv); |
745 | select (0, 0, 0, 0, &tv); |
640 | #endif |
746 | #endif |
641 | } |
747 | } |
642 | } |
748 | } |
… | |
… | |
750 | } |
856 | } |
751 | |
857 | |
752 | /*****************************************************************************/ |
858 | /*****************************************************************************/ |
753 | |
859 | |
754 | inline_speed void |
860 | inline_speed void |
755 | fd_event (EV_P_ int fd, int revents) |
861 | fd_event_nc (EV_P_ int fd, int revents) |
756 | { |
862 | { |
757 | ANFD *anfd = anfds + fd; |
863 | ANFD *anfd = anfds + fd; |
758 | ev_io *w; |
864 | ev_io *w; |
759 | |
865 | |
760 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
866 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
764 | if (ev) |
870 | if (ev) |
765 | ev_feed_event (EV_A_ (W)w, ev); |
871 | ev_feed_event (EV_A_ (W)w, ev); |
766 | } |
872 | } |
767 | } |
873 | } |
768 | |
874 | |
|
|
875 | /* do not submit kernel events for fds that have reify set */ |
|
|
876 | /* because that means they changed while we were polling for new events */ |
|
|
877 | inline_speed void |
|
|
878 | fd_event (EV_P_ int fd, int revents) |
|
|
879 | { |
|
|
880 | ANFD *anfd = anfds + fd; |
|
|
881 | |
|
|
882 | if (expect_true (!anfd->reify)) |
|
|
883 | fd_event_nc (EV_A_ fd, revents); |
|
|
884 | } |
|
|
885 | |
769 | void |
886 | void |
770 | ev_feed_fd_event (EV_P_ int fd, int revents) |
887 | ev_feed_fd_event (EV_P_ int fd, int revents) |
771 | { |
888 | { |
772 | if (fd >= 0 && fd < anfdmax) |
889 | if (fd >= 0 && fd < anfdmax) |
773 | fd_event (EV_A_ fd, revents); |
890 | fd_event_nc (EV_A_ fd, revents); |
774 | } |
891 | } |
775 | |
892 | |
776 | /* make sure the external fd watch events are in-sync */ |
893 | /* make sure the external fd watch events are in-sync */ |
777 | /* with the kernel/libev internal state */ |
894 | /* with the kernel/libev internal state */ |
778 | inline_size void |
895 | inline_size void |
… | |
… | |
793 | |
910 | |
794 | #if EV_SELECT_IS_WINSOCKET |
911 | #if EV_SELECT_IS_WINSOCKET |
795 | if (events) |
912 | if (events) |
796 | { |
913 | { |
797 | unsigned long arg; |
914 | unsigned long arg; |
798 | #ifdef EV_FD_TO_WIN32_HANDLE |
|
|
799 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
915 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
800 | #else |
|
|
801 | anfd->handle = _get_osfhandle (fd); |
|
|
802 | #endif |
|
|
803 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
916 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
804 | } |
917 | } |
805 | #endif |
918 | #endif |
806 | |
919 | |
807 | { |
920 | { |
… | |
… | |
878 | |
991 | |
879 | for (fd = anfdmax; fd--; ) |
992 | for (fd = anfdmax; fd--; ) |
880 | if (anfds [fd].events) |
993 | if (anfds [fd].events) |
881 | { |
994 | { |
882 | fd_kill (EV_A_ fd); |
995 | fd_kill (EV_A_ fd); |
883 | return; |
996 | break; |
884 | } |
997 | } |
885 | } |
998 | } |
886 | |
999 | |
887 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1000 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
888 | static void noinline |
1001 | static void noinline |
… | |
… | |
893 | for (fd = 0; fd < anfdmax; ++fd) |
1006 | for (fd = 0; fd < anfdmax; ++fd) |
894 | if (anfds [fd].events) |
1007 | if (anfds [fd].events) |
895 | { |
1008 | { |
896 | anfds [fd].events = 0; |
1009 | anfds [fd].events = 0; |
897 | anfds [fd].emask = 0; |
1010 | anfds [fd].emask = 0; |
898 | fd_change (EV_A_ fd, EV__IOFDSET | 1); |
1011 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
899 | } |
1012 | } |
900 | } |
1013 | } |
901 | |
1014 | |
902 | /*****************************************************************************/ |
1015 | /*****************************************************************************/ |
903 | |
1016 | |
… | |
… | |
978 | |
1091 | |
979 | for (;;) |
1092 | for (;;) |
980 | { |
1093 | { |
981 | int c = k << 1; |
1094 | int c = k << 1; |
982 | |
1095 | |
983 | if (c > N + HEAP0 - 1) |
1096 | if (c >= N + HEAP0) |
984 | break; |
1097 | break; |
985 | |
1098 | |
986 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
1099 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
987 | ? 1 : 0; |
1100 | ? 1 : 0; |
988 | |
1101 | |
… | |
… | |
1024 | |
1137 | |
1025 | /* move an element suitably so it is in a correct place */ |
1138 | /* move an element suitably so it is in a correct place */ |
1026 | inline_size void |
1139 | inline_size void |
1027 | adjustheap (ANHE *heap, int N, int k) |
1140 | adjustheap (ANHE *heap, int N, int k) |
1028 | { |
1141 | { |
1029 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
1142 | if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)])) |
1030 | upheap (heap, k); |
1143 | upheap (heap, k); |
1031 | else |
1144 | else |
1032 | downheap (heap, N, k); |
1145 | downheap (heap, N, k); |
1033 | } |
1146 | } |
1034 | |
1147 | |
… | |
… | |
1047 | /*****************************************************************************/ |
1160 | /*****************************************************************************/ |
1048 | |
1161 | |
1049 | /* associate signal watchers to a signal signal */ |
1162 | /* associate signal watchers to a signal signal */ |
1050 | typedef struct |
1163 | typedef struct |
1051 | { |
1164 | { |
|
|
1165 | EV_ATOMIC_T pending; |
|
|
1166 | #if EV_MULTIPLICITY |
|
|
1167 | EV_P; |
|
|
1168 | #endif |
1052 | WL head; |
1169 | WL head; |
1053 | EV_ATOMIC_T gotsig; |
|
|
1054 | } ANSIG; |
1170 | } ANSIG; |
1055 | |
1171 | |
1056 | static ANSIG *signals; |
1172 | static ANSIG signals [EV_NSIG - 1]; |
1057 | static int signalmax; |
|
|
1058 | |
|
|
1059 | static EV_ATOMIC_T gotsig; |
|
|
1060 | |
1173 | |
1061 | /*****************************************************************************/ |
1174 | /*****************************************************************************/ |
1062 | |
1175 | |
1063 | /* used to prepare libev internal fd's */ |
1176 | /* used to prepare libev internal fd's */ |
1064 | /* this is not fork-safe */ |
1177 | /* this is not fork-safe */ |
… | |
… | |
1078 | evpipe_init (EV_P) |
1191 | evpipe_init (EV_P) |
1079 | { |
1192 | { |
1080 | if (!ev_is_active (&pipe_w)) |
1193 | if (!ev_is_active (&pipe_w)) |
1081 | { |
1194 | { |
1082 | #if EV_USE_EVENTFD |
1195 | #if EV_USE_EVENTFD |
|
|
1196 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
|
|
1197 | if (evfd < 0 && errno == EINVAL) |
1083 | if ((evfd = eventfd (0, 0)) >= 0) |
1198 | evfd = eventfd (0, 0); |
|
|
1199 | |
|
|
1200 | if (evfd >= 0) |
1084 | { |
1201 | { |
1085 | evpipe [0] = -1; |
1202 | evpipe [0] = -1; |
1086 | fd_intern (evfd); |
1203 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
1087 | ev_io_set (&pipe_w, evfd, EV_READ); |
1204 | ev_io_set (&pipe_w, evfd, EV_READ); |
1088 | } |
1205 | } |
1089 | else |
1206 | else |
1090 | #endif |
1207 | #endif |
1091 | { |
1208 | { |
… | |
… | |
1128 | /* called whenever the libev signal pipe */ |
1245 | /* called whenever the libev signal pipe */ |
1129 | /* got some events (signal, async) */ |
1246 | /* got some events (signal, async) */ |
1130 | static void |
1247 | static void |
1131 | pipecb (EV_P_ ev_io *iow, int revents) |
1248 | pipecb (EV_P_ ev_io *iow, int revents) |
1132 | { |
1249 | { |
|
|
1250 | int i; |
|
|
1251 | |
1133 | #if EV_USE_EVENTFD |
1252 | #if EV_USE_EVENTFD |
1134 | if (evfd >= 0) |
1253 | if (evfd >= 0) |
1135 | { |
1254 | { |
1136 | uint64_t counter; |
1255 | uint64_t counter; |
1137 | read (evfd, &counter, sizeof (uint64_t)); |
1256 | read (evfd, &counter, sizeof (uint64_t)); |
… | |
… | |
1141 | { |
1260 | { |
1142 | char dummy; |
1261 | char dummy; |
1143 | read (evpipe [0], &dummy, 1); |
1262 | read (evpipe [0], &dummy, 1); |
1144 | } |
1263 | } |
1145 | |
1264 | |
1146 | if (gotsig && ev_is_default_loop (EV_A)) |
1265 | if (sig_pending) |
1147 | { |
1266 | { |
1148 | int signum; |
1267 | sig_pending = 0; |
1149 | gotsig = 0; |
|
|
1150 | |
1268 | |
1151 | for (signum = signalmax; signum--; ) |
1269 | for (i = EV_NSIG - 1; i--; ) |
1152 | if (signals [signum].gotsig) |
1270 | if (expect_false (signals [i].pending)) |
1153 | ev_feed_signal_event (EV_A_ signum + 1); |
1271 | ev_feed_signal_event (EV_A_ i + 1); |
1154 | } |
1272 | } |
1155 | |
1273 | |
1156 | #if EV_ASYNC_ENABLE |
1274 | #if EV_ASYNC_ENABLE |
1157 | if (gotasync) |
1275 | if (async_pending) |
1158 | { |
1276 | { |
1159 | int i; |
1277 | async_pending = 0; |
1160 | gotasync = 0; |
|
|
1161 | |
1278 | |
1162 | for (i = asynccnt; i--; ) |
1279 | for (i = asynccnt; i--; ) |
1163 | if (asyncs [i]->sent) |
1280 | if (asyncs [i]->sent) |
1164 | { |
1281 | { |
1165 | asyncs [i]->sent = 0; |
1282 | asyncs [i]->sent = 0; |
… | |
… | |
1173 | |
1290 | |
1174 | static void |
1291 | static void |
1175 | ev_sighandler (int signum) |
1292 | ev_sighandler (int signum) |
1176 | { |
1293 | { |
1177 | #if EV_MULTIPLICITY |
1294 | #if EV_MULTIPLICITY |
1178 | struct ev_loop *loop = &default_loop_struct; |
1295 | EV_P = signals [signum - 1].loop; |
1179 | #endif |
1296 | #endif |
1180 | |
1297 | |
1181 | #if _WIN32 |
1298 | #if _WIN32 |
1182 | signal (signum, ev_sighandler); |
1299 | signal (signum, ev_sighandler); |
1183 | #endif |
1300 | #endif |
1184 | |
1301 | |
1185 | signals [signum - 1].gotsig = 1; |
1302 | signals [signum - 1].pending = 1; |
1186 | evpipe_write (EV_A_ &gotsig); |
1303 | evpipe_write (EV_A_ &sig_pending); |
1187 | } |
1304 | } |
1188 | |
1305 | |
1189 | void noinline |
1306 | void noinline |
1190 | ev_feed_signal_event (EV_P_ int signum) |
1307 | ev_feed_signal_event (EV_P_ int signum) |
1191 | { |
1308 | { |
1192 | WL w; |
1309 | WL w; |
1193 | |
1310 | |
|
|
1311 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
|
|
1312 | return; |
|
|
1313 | |
|
|
1314 | --signum; |
|
|
1315 | |
1194 | #if EV_MULTIPLICITY |
1316 | #if EV_MULTIPLICITY |
1195 | assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1317 | /* it is permissible to try to feed a signal to the wrong loop */ |
1196 | #endif |
1318 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
1197 | |
1319 | |
1198 | --signum; |
1320 | if (expect_false (signals [signum].loop != EV_A)) |
1199 | |
|
|
1200 | if (signum < 0 || signum >= signalmax) |
|
|
1201 | return; |
1321 | return; |
|
|
1322 | #endif |
1202 | |
1323 | |
1203 | signals [signum].gotsig = 0; |
1324 | signals [signum].pending = 0; |
1204 | |
1325 | |
1205 | for (w = signals [signum].head; w; w = w->next) |
1326 | for (w = signals [signum].head; w; w = w->next) |
1206 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1327 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1207 | } |
1328 | } |
|
|
1329 | |
|
|
1330 | #if EV_USE_SIGNALFD |
|
|
1331 | static void |
|
|
1332 | sigfdcb (EV_P_ ev_io *iow, int revents) |
|
|
1333 | { |
|
|
1334 | struct signalfd_siginfo si[2], *sip; /* these structs are big */ |
|
|
1335 | |
|
|
1336 | for (;;) |
|
|
1337 | { |
|
|
1338 | ssize_t res = read (sigfd, si, sizeof (si)); |
|
|
1339 | |
|
|
1340 | /* not ISO-C, as res might be -1, but works with SuS */ |
|
|
1341 | for (sip = si; (char *)sip < (char *)si + res; ++sip) |
|
|
1342 | ev_feed_signal_event (EV_A_ sip->ssi_signo); |
|
|
1343 | |
|
|
1344 | if (res < (ssize_t)sizeof (si)) |
|
|
1345 | break; |
|
|
1346 | } |
|
|
1347 | } |
|
|
1348 | #endif |
1208 | |
1349 | |
1209 | /*****************************************************************************/ |
1350 | /*****************************************************************************/ |
1210 | |
1351 | |
1211 | static WL childs [EV_PID_HASHSIZE]; |
1352 | static WL childs [EV_PID_HASHSIZE]; |
1212 | |
1353 | |
… | |
… | |
1357 | ev_backend (EV_P) |
1498 | ev_backend (EV_P) |
1358 | { |
1499 | { |
1359 | return backend; |
1500 | return backend; |
1360 | } |
1501 | } |
1361 | |
1502 | |
|
|
1503 | #if EV_MINIMAL < 2 |
1362 | unsigned int |
1504 | unsigned int |
1363 | ev_loop_count (EV_P) |
1505 | ev_loop_count (EV_P) |
1364 | { |
1506 | { |
1365 | return loop_count; |
1507 | return loop_count; |
1366 | } |
1508 | } |
… | |
… | |
1380 | void |
1522 | void |
1381 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1523 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1382 | { |
1524 | { |
1383 | timeout_blocktime = interval; |
1525 | timeout_blocktime = interval; |
1384 | } |
1526 | } |
|
|
1527 | |
|
|
1528 | void |
|
|
1529 | ev_set_userdata (EV_P_ void *data) |
|
|
1530 | { |
|
|
1531 | userdata = data; |
|
|
1532 | } |
|
|
1533 | |
|
|
1534 | void * |
|
|
1535 | ev_userdata (EV_P) |
|
|
1536 | { |
|
|
1537 | return userdata; |
|
|
1538 | } |
|
|
1539 | |
|
|
1540 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
|
|
1541 | { |
|
|
1542 | invoke_cb = invoke_pending_cb; |
|
|
1543 | } |
|
|
1544 | |
|
|
1545 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
|
|
1546 | { |
|
|
1547 | release_cb = release; |
|
|
1548 | acquire_cb = acquire; |
|
|
1549 | } |
|
|
1550 | #endif |
1385 | |
1551 | |
1386 | /* initialise a loop structure, must be zero-initialised */ |
1552 | /* initialise a loop structure, must be zero-initialised */ |
1387 | static void noinline |
1553 | static void noinline |
1388 | loop_init (EV_P_ unsigned int flags) |
1554 | loop_init (EV_P_ unsigned int flags) |
1389 | { |
1555 | { |
… | |
… | |
1407 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1573 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1408 | have_monotonic = 1; |
1574 | have_monotonic = 1; |
1409 | } |
1575 | } |
1410 | #endif |
1576 | #endif |
1411 | |
1577 | |
|
|
1578 | /* pid check not overridable via env */ |
|
|
1579 | #ifndef _WIN32 |
|
|
1580 | if (flags & EVFLAG_FORKCHECK) |
|
|
1581 | curpid = getpid (); |
|
|
1582 | #endif |
|
|
1583 | |
|
|
1584 | if (!(flags & EVFLAG_NOENV) |
|
|
1585 | && !enable_secure () |
|
|
1586 | && getenv ("LIBEV_FLAGS")) |
|
|
1587 | flags = atoi (getenv ("LIBEV_FLAGS")); |
|
|
1588 | |
1412 | ev_rt_now = ev_time (); |
1589 | ev_rt_now = ev_time (); |
1413 | mn_now = get_clock (); |
1590 | mn_now = get_clock (); |
1414 | now_floor = mn_now; |
1591 | now_floor = mn_now; |
1415 | rtmn_diff = ev_rt_now - mn_now; |
1592 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1593 | #if EV_MINIMAL < 2 |
1416 | invoke_cb = ev_invoke_pending; |
1594 | invoke_cb = ev_invoke_pending; |
|
|
1595 | #endif |
1417 | |
1596 | |
1418 | io_blocktime = 0.; |
1597 | io_blocktime = 0.; |
1419 | timeout_blocktime = 0.; |
1598 | timeout_blocktime = 0.; |
1420 | backend = 0; |
1599 | backend = 0; |
1421 | backend_fd = -1; |
1600 | backend_fd = -1; |
1422 | gotasync = 0; |
1601 | sig_pending = 0; |
|
|
1602 | #if EV_ASYNC_ENABLE |
|
|
1603 | async_pending = 0; |
|
|
1604 | #endif |
1423 | #if EV_USE_INOTIFY |
1605 | #if EV_USE_INOTIFY |
1424 | fs_fd = -2; |
1606 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1425 | #endif |
1607 | #endif |
1426 | |
1608 | #if EV_USE_SIGNALFD |
1427 | /* pid check not overridable via env */ |
1609 | sigfd = flags & EVFLAG_NOSIGFD ? -1 : -2; |
1428 | #ifndef _WIN32 |
|
|
1429 | if (flags & EVFLAG_FORKCHECK) |
|
|
1430 | curpid = getpid (); |
|
|
1431 | #endif |
1610 | #endif |
1432 | |
|
|
1433 | if (!(flags & EVFLAG_NOENV) |
|
|
1434 | && !enable_secure () |
|
|
1435 | && getenv ("LIBEV_FLAGS")) |
|
|
1436 | flags = atoi (getenv ("LIBEV_FLAGS")); |
|
|
1437 | |
1611 | |
1438 | if (!(flags & 0x0000ffffU)) |
1612 | if (!(flags & 0x0000ffffU)) |
1439 | flags |= ev_recommended_backends (); |
1613 | flags |= ev_recommended_backends (); |
1440 | |
1614 | |
1441 | #if EV_USE_PORT |
1615 | #if EV_USE_PORT |
… | |
… | |
1467 | { |
1641 | { |
1468 | int i; |
1642 | int i; |
1469 | |
1643 | |
1470 | if (ev_is_active (&pipe_w)) |
1644 | if (ev_is_active (&pipe_w)) |
1471 | { |
1645 | { |
1472 | ev_ref (EV_A); /* signal watcher */ |
1646 | /*ev_ref (EV_A);*/ |
1473 | ev_io_stop (EV_A_ &pipe_w); |
1647 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1474 | |
1648 | |
1475 | #if EV_USE_EVENTFD |
1649 | #if EV_USE_EVENTFD |
1476 | if (evfd >= 0) |
1650 | if (evfd >= 0) |
1477 | close (evfd); |
1651 | close (evfd); |
1478 | #endif |
1652 | #endif |
1479 | |
1653 | |
1480 | if (evpipe [0] >= 0) |
1654 | if (evpipe [0] >= 0) |
1481 | { |
1655 | { |
1482 | close (evpipe [0]); |
1656 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1483 | close (evpipe [1]); |
1657 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1484 | } |
1658 | } |
1485 | } |
1659 | } |
|
|
1660 | |
|
|
1661 | #if EV_USE_SIGNALFD |
|
|
1662 | if (ev_is_active (&sigfd_w)) |
|
|
1663 | { |
|
|
1664 | /*ev_ref (EV_A);*/ |
|
|
1665 | /*ev_io_stop (EV_A_ &sigfd_w);*/ |
|
|
1666 | |
|
|
1667 | close (sigfd); |
|
|
1668 | } |
|
|
1669 | #endif |
1486 | |
1670 | |
1487 | #if EV_USE_INOTIFY |
1671 | #if EV_USE_INOTIFY |
1488 | if (fs_fd >= 0) |
1672 | if (fs_fd >= 0) |
1489 | close (fs_fd); |
1673 | close (fs_fd); |
1490 | #endif |
1674 | #endif |
… | |
… | |
1514 | #if EV_IDLE_ENABLE |
1698 | #if EV_IDLE_ENABLE |
1515 | array_free (idle, [i]); |
1699 | array_free (idle, [i]); |
1516 | #endif |
1700 | #endif |
1517 | } |
1701 | } |
1518 | |
1702 | |
1519 | ev_free (anfds); anfdmax = 0; |
1703 | ev_free (anfds); anfds = 0; anfdmax = 0; |
1520 | |
1704 | |
1521 | /* have to use the microsoft-never-gets-it-right macro */ |
1705 | /* have to use the microsoft-never-gets-it-right macro */ |
1522 | array_free (rfeed, EMPTY); |
1706 | array_free (rfeed, EMPTY); |
1523 | array_free (fdchange, EMPTY); |
1707 | array_free (fdchange, EMPTY); |
1524 | array_free (timer, EMPTY); |
1708 | array_free (timer, EMPTY); |
… | |
… | |
1559 | |
1743 | |
1560 | if (ev_is_active (&pipe_w)) |
1744 | if (ev_is_active (&pipe_w)) |
1561 | { |
1745 | { |
1562 | /* this "locks" the handlers against writing to the pipe */ |
1746 | /* this "locks" the handlers against writing to the pipe */ |
1563 | /* while we modify the fd vars */ |
1747 | /* while we modify the fd vars */ |
1564 | gotsig = 1; |
1748 | sig_pending = 1; |
1565 | #if EV_ASYNC_ENABLE |
1749 | #if EV_ASYNC_ENABLE |
1566 | gotasync = 1; |
1750 | async_pending = 1; |
1567 | #endif |
1751 | #endif |
1568 | |
1752 | |
1569 | ev_ref (EV_A); |
1753 | ev_ref (EV_A); |
1570 | ev_io_stop (EV_A_ &pipe_w); |
1754 | ev_io_stop (EV_A_ &pipe_w); |
1571 | |
1755 | |
… | |
… | |
1574 | close (evfd); |
1758 | close (evfd); |
1575 | #endif |
1759 | #endif |
1576 | |
1760 | |
1577 | if (evpipe [0] >= 0) |
1761 | if (evpipe [0] >= 0) |
1578 | { |
1762 | { |
1579 | close (evpipe [0]); |
1763 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1580 | close (evpipe [1]); |
1764 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1581 | } |
1765 | } |
1582 | |
1766 | |
1583 | evpipe_init (EV_A); |
1767 | evpipe_init (EV_A); |
1584 | /* now iterate over everything, in case we missed something */ |
1768 | /* now iterate over everything, in case we missed something */ |
1585 | pipecb (EV_A_ &pipe_w, EV_READ); |
1769 | pipecb (EV_A_ &pipe_w, EV_READ); |
… | |
… | |
1591 | #if EV_MULTIPLICITY |
1775 | #if EV_MULTIPLICITY |
1592 | |
1776 | |
1593 | struct ev_loop * |
1777 | struct ev_loop * |
1594 | ev_loop_new (unsigned int flags) |
1778 | ev_loop_new (unsigned int flags) |
1595 | { |
1779 | { |
1596 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1780 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1597 | |
1781 | |
1598 | memset (loop, 0, sizeof (struct ev_loop)); |
1782 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1599 | |
|
|
1600 | loop_init (EV_A_ flags); |
1783 | loop_init (EV_A_ flags); |
1601 | |
1784 | |
1602 | if (ev_backend (EV_A)) |
1785 | if (ev_backend (EV_A)) |
1603 | return loop; |
1786 | return EV_A; |
1604 | |
1787 | |
1605 | return 0; |
1788 | return 0; |
1606 | } |
1789 | } |
1607 | |
1790 | |
1608 | void |
1791 | void |
… | |
… | |
1615 | void |
1798 | void |
1616 | ev_loop_fork (EV_P) |
1799 | ev_loop_fork (EV_P) |
1617 | { |
1800 | { |
1618 | postfork = 1; /* must be in line with ev_default_fork */ |
1801 | postfork = 1; /* must be in line with ev_default_fork */ |
1619 | } |
1802 | } |
|
|
1803 | #endif /* multiplicity */ |
1620 | |
1804 | |
1621 | #if EV_VERIFY |
1805 | #if EV_VERIFY |
1622 | static void noinline |
1806 | static void noinline |
1623 | verify_watcher (EV_P_ W w) |
1807 | verify_watcher (EV_P_ W w) |
1624 | { |
1808 | { |
… | |
… | |
1652 | verify_watcher (EV_A_ ws [cnt]); |
1836 | verify_watcher (EV_A_ ws [cnt]); |
1653 | } |
1837 | } |
1654 | } |
1838 | } |
1655 | #endif |
1839 | #endif |
1656 | |
1840 | |
|
|
1841 | #if EV_MINIMAL < 2 |
1657 | void |
1842 | void |
1658 | ev_loop_verify (EV_P) |
1843 | ev_loop_verify (EV_P) |
1659 | { |
1844 | { |
1660 | #if EV_VERIFY |
1845 | #if EV_VERIFY |
1661 | int i; |
1846 | int i; |
… | |
… | |
1710 | assert (checkmax >= checkcnt); |
1895 | assert (checkmax >= checkcnt); |
1711 | array_verify (EV_A_ (W *)checks, checkcnt); |
1896 | array_verify (EV_A_ (W *)checks, checkcnt); |
1712 | |
1897 | |
1713 | # if 0 |
1898 | # if 0 |
1714 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1899 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1715 | for (signum = signalmax; signum--; ) if (signals [signum].gotsig) |
1900 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
1716 | # endif |
|
|
1717 | #endif |
1901 | # endif |
|
|
1902 | #endif |
1718 | } |
1903 | } |
1719 | |
1904 | #endif |
1720 | #endif /* multiplicity */ |
|
|
1721 | |
1905 | |
1722 | #if EV_MULTIPLICITY |
1906 | #if EV_MULTIPLICITY |
1723 | struct ev_loop * |
1907 | struct ev_loop * |
1724 | ev_default_loop_init (unsigned int flags) |
1908 | ev_default_loop_init (unsigned int flags) |
1725 | #else |
1909 | #else |
… | |
… | |
1728 | #endif |
1912 | #endif |
1729 | { |
1913 | { |
1730 | if (!ev_default_loop_ptr) |
1914 | if (!ev_default_loop_ptr) |
1731 | { |
1915 | { |
1732 | #if EV_MULTIPLICITY |
1916 | #if EV_MULTIPLICITY |
1733 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1917 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
1734 | #else |
1918 | #else |
1735 | ev_default_loop_ptr = 1; |
1919 | ev_default_loop_ptr = 1; |
1736 | #endif |
1920 | #endif |
1737 | |
1921 | |
1738 | loop_init (EV_A_ flags); |
1922 | loop_init (EV_A_ flags); |
… | |
… | |
1755 | |
1939 | |
1756 | void |
1940 | void |
1757 | ev_default_destroy (void) |
1941 | ev_default_destroy (void) |
1758 | { |
1942 | { |
1759 | #if EV_MULTIPLICITY |
1943 | #if EV_MULTIPLICITY |
1760 | struct ev_loop *loop = ev_default_loop_ptr; |
1944 | EV_P = ev_default_loop_ptr; |
1761 | #endif |
1945 | #endif |
1762 | |
1946 | |
1763 | ev_default_loop_ptr = 0; |
1947 | ev_default_loop_ptr = 0; |
1764 | |
1948 | |
1765 | #ifndef _WIN32 |
1949 | #ifndef _WIN32 |
… | |
… | |
1772 | |
1956 | |
1773 | void |
1957 | void |
1774 | ev_default_fork (void) |
1958 | ev_default_fork (void) |
1775 | { |
1959 | { |
1776 | #if EV_MULTIPLICITY |
1960 | #if EV_MULTIPLICITY |
1777 | struct ev_loop *loop = ev_default_loop_ptr; |
1961 | EV_P = ev_default_loop_ptr; |
1778 | #endif |
1962 | #endif |
1779 | |
1963 | |
1780 | postfork = 1; /* must be in line with ev_loop_fork */ |
1964 | postfork = 1; /* must be in line with ev_loop_fork */ |
1781 | } |
1965 | } |
1782 | |
1966 | |
… | |
… | |
1786 | ev_invoke (EV_P_ void *w, int revents) |
1970 | ev_invoke (EV_P_ void *w, int revents) |
1787 | { |
1971 | { |
1788 | EV_CB_INVOKE ((W)w, revents); |
1972 | EV_CB_INVOKE ((W)w, revents); |
1789 | } |
1973 | } |
1790 | |
1974 | |
1791 | void |
1975 | unsigned int |
|
|
1976 | ev_pending_count (EV_P) |
|
|
1977 | { |
|
|
1978 | int pri; |
|
|
1979 | unsigned int count = 0; |
|
|
1980 | |
|
|
1981 | for (pri = NUMPRI; pri--; ) |
|
|
1982 | count += pendingcnt [pri]; |
|
|
1983 | |
|
|
1984 | return count; |
|
|
1985 | } |
|
|
1986 | |
|
|
1987 | void noinline |
1792 | ev_invoke_pending (EV_P) |
1988 | ev_invoke_pending (EV_P) |
1793 | { |
1989 | { |
1794 | int pri; |
1990 | int pri; |
1795 | |
1991 | |
1796 | for (pri = NUMPRI; pri--; ) |
1992 | for (pri = NUMPRI; pri--; ) |
… | |
… | |
2035 | } |
2231 | } |
2036 | |
2232 | |
2037 | void |
2233 | void |
2038 | ev_loop (EV_P_ int flags) |
2234 | ev_loop (EV_P_ int flags) |
2039 | { |
2235 | { |
|
|
2236 | #if EV_MINIMAL < 2 |
2040 | ++loop_depth; |
2237 | ++loop_depth; |
|
|
2238 | #endif |
|
|
2239 | |
|
|
2240 | assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); |
2041 | |
2241 | |
2042 | loop_done = EVUNLOOP_CANCEL; |
2242 | loop_done = EVUNLOOP_CANCEL; |
2043 | |
2243 | |
2044 | invoke_cb (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
2244 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
2045 | |
2245 | |
2046 | do |
2246 | do |
2047 | { |
2247 | { |
2048 | #if EV_VERIFY >= 2 |
2248 | #if EV_VERIFY >= 2 |
2049 | ev_loop_verify (EV_A); |
2249 | ev_loop_verify (EV_A); |
… | |
… | |
2062 | /* we might have forked, so queue fork handlers */ |
2262 | /* we might have forked, so queue fork handlers */ |
2063 | if (expect_false (postfork)) |
2263 | if (expect_false (postfork)) |
2064 | if (forkcnt) |
2264 | if (forkcnt) |
2065 | { |
2265 | { |
2066 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2266 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2067 | invoke_cb (EV_A); |
2267 | EV_INVOKE_PENDING; |
2068 | } |
2268 | } |
2069 | #endif |
2269 | #endif |
2070 | |
2270 | |
2071 | /* queue prepare watchers (and execute them) */ |
2271 | /* queue prepare watchers (and execute them) */ |
2072 | if (expect_false (preparecnt)) |
2272 | if (expect_false (preparecnt)) |
2073 | { |
2273 | { |
2074 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2274 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2075 | invoke_cb (EV_A); |
2275 | EV_INVOKE_PENDING; |
2076 | } |
2276 | } |
|
|
2277 | |
|
|
2278 | if (expect_false (loop_done)) |
|
|
2279 | break; |
2077 | |
2280 | |
2078 | /* we might have forked, so reify kernel state if necessary */ |
2281 | /* we might have forked, so reify kernel state if necessary */ |
2079 | if (expect_false (postfork)) |
2282 | if (expect_false (postfork)) |
2080 | loop_fork (EV_A); |
2283 | loop_fork (EV_A); |
2081 | |
2284 | |
… | |
… | |
2129 | waittime -= sleeptime; |
2332 | waittime -= sleeptime; |
2130 | } |
2333 | } |
2131 | } |
2334 | } |
2132 | } |
2335 | } |
2133 | |
2336 | |
|
|
2337 | #if EV_MINIMAL < 2 |
2134 | ++loop_count; |
2338 | ++loop_count; |
|
|
2339 | #endif |
|
|
2340 | assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ |
2135 | backend_poll (EV_A_ waittime); |
2341 | backend_poll (EV_A_ waittime); |
|
|
2342 | assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ |
2136 | |
2343 | |
2137 | /* update ev_rt_now, do magic */ |
2344 | /* update ev_rt_now, do magic */ |
2138 | time_update (EV_A_ waittime + sleeptime); |
2345 | time_update (EV_A_ waittime + sleeptime); |
2139 | } |
2346 | } |
2140 | |
2347 | |
… | |
… | |
2151 | |
2358 | |
2152 | /* queue check watchers, to be executed first */ |
2359 | /* queue check watchers, to be executed first */ |
2153 | if (expect_false (checkcnt)) |
2360 | if (expect_false (checkcnt)) |
2154 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2361 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2155 | |
2362 | |
2156 | invoke_cb (EV_A); |
2363 | EV_INVOKE_PENDING; |
2157 | } |
2364 | } |
2158 | while (expect_true ( |
2365 | while (expect_true ( |
2159 | activecnt |
2366 | activecnt |
2160 | && !loop_done |
2367 | && !loop_done |
2161 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2368 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2162 | )); |
2369 | )); |
2163 | |
2370 | |
2164 | if (loop_done == EVUNLOOP_ONE) |
2371 | if (loop_done == EVUNLOOP_ONE) |
2165 | loop_done = EVUNLOOP_CANCEL; |
2372 | loop_done = EVUNLOOP_CANCEL; |
2166 | |
2373 | |
|
|
2374 | #if EV_MINIMAL < 2 |
2167 | --loop_depth; |
2375 | --loop_depth; |
|
|
2376 | #endif |
2168 | } |
2377 | } |
2169 | |
2378 | |
2170 | void |
2379 | void |
2171 | ev_unloop (EV_P_ int how) |
2380 | ev_unloop (EV_P_ int how) |
2172 | { |
2381 | { |
… | |
… | |
2223 | inline_size void |
2432 | inline_size void |
2224 | wlist_del (WL *head, WL elem) |
2433 | wlist_del (WL *head, WL elem) |
2225 | { |
2434 | { |
2226 | while (*head) |
2435 | while (*head) |
2227 | { |
2436 | { |
2228 | if (*head == elem) |
2437 | if (expect_true (*head == elem)) |
2229 | { |
2438 | { |
2230 | *head = elem->next; |
2439 | *head = elem->next; |
2231 | return; |
2440 | break; |
2232 | } |
2441 | } |
2233 | |
2442 | |
2234 | head = &(*head)->next; |
2443 | head = &(*head)->next; |
2235 | } |
2444 | } |
2236 | } |
2445 | } |
… | |
… | |
2304 | |
2513 | |
2305 | ev_start (EV_A_ (W)w, 1); |
2514 | ev_start (EV_A_ (W)w, 1); |
2306 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2515 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2307 | wlist_add (&anfds[fd].head, (WL)w); |
2516 | wlist_add (&anfds[fd].head, (WL)w); |
2308 | |
2517 | |
2309 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | 1); |
2518 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
2310 | w->events &= ~EV__IOFDSET; |
2519 | w->events &= ~EV__IOFDSET; |
2311 | |
2520 | |
2312 | EV_FREQUENT_CHECK; |
2521 | EV_FREQUENT_CHECK; |
2313 | } |
2522 | } |
2314 | |
2523 | |
… | |
… | |
2408 | } |
2617 | } |
2409 | |
2618 | |
2410 | EV_FREQUENT_CHECK; |
2619 | EV_FREQUENT_CHECK; |
2411 | } |
2620 | } |
2412 | |
2621 | |
|
|
2622 | ev_tstamp |
|
|
2623 | ev_timer_remaining (EV_P_ ev_timer *w) |
|
|
2624 | { |
|
|
2625 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
|
|
2626 | } |
|
|
2627 | |
2413 | #if EV_PERIODIC_ENABLE |
2628 | #if EV_PERIODIC_ENABLE |
2414 | void noinline |
2629 | void noinline |
2415 | ev_periodic_start (EV_P_ ev_periodic *w) |
2630 | ev_periodic_start (EV_P_ ev_periodic *w) |
2416 | { |
2631 | { |
2417 | if (expect_false (ev_is_active (w))) |
2632 | if (expect_false (ev_is_active (w))) |
… | |
… | |
2484 | #endif |
2699 | #endif |
2485 | |
2700 | |
2486 | void noinline |
2701 | void noinline |
2487 | ev_signal_start (EV_P_ ev_signal *w) |
2702 | ev_signal_start (EV_P_ ev_signal *w) |
2488 | { |
2703 | { |
2489 | #if EV_MULTIPLICITY |
|
|
2490 | assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
2491 | #endif |
|
|
2492 | if (expect_false (ev_is_active (w))) |
2704 | if (expect_false (ev_is_active (w))) |
2493 | return; |
2705 | return; |
2494 | |
2706 | |
2495 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); |
2707 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
2496 | |
2708 | |
2497 | evpipe_init (EV_A); |
2709 | #if EV_MULTIPLICITY |
|
|
2710 | assert (("libev: a signal must not be attached to two different loops", |
|
|
2711 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
2498 | |
2712 | |
2499 | EV_FREQUENT_CHECK; |
2713 | signals [w->signum - 1].loop = EV_A; |
|
|
2714 | #endif |
2500 | |
2715 | |
|
|
2716 | EV_FREQUENT_CHECK; |
|
|
2717 | |
|
|
2718 | #if EV_USE_SIGNALFD |
|
|
2719 | if (sigfd == -2) |
2501 | { |
2720 | { |
2502 | #ifndef _WIN32 |
2721 | sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC); |
2503 | sigset_t full, prev; |
2722 | if (sigfd < 0 && errno == EINVAL) |
2504 | sigfillset (&full); |
2723 | sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */ |
2505 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2506 | #endif |
|
|
2507 | |
2724 | |
2508 | array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); |
2725 | if (sigfd >= 0) |
|
|
2726 | { |
|
|
2727 | fd_intern (sigfd); /* doing it twice will not hurt */ |
2509 | |
2728 | |
2510 | #ifndef _WIN32 |
2729 | sigemptyset (&sigfd_set); |
2511 | sigprocmask (SIG_SETMASK, &prev, 0); |
2730 | |
2512 | #endif |
2731 | ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ); |
|
|
2732 | ev_set_priority (&sigfd_w, EV_MAXPRI); |
|
|
2733 | ev_io_start (EV_A_ &sigfd_w); |
|
|
2734 | ev_unref (EV_A); /* signalfd watcher should not keep loop alive */ |
|
|
2735 | } |
2513 | } |
2736 | } |
|
|
2737 | |
|
|
2738 | if (sigfd >= 0) |
|
|
2739 | { |
|
|
2740 | /* TODO: check .head */ |
|
|
2741 | sigaddset (&sigfd_set, w->signum); |
|
|
2742 | sigprocmask (SIG_BLOCK, &sigfd_set, 0); |
|
|
2743 | |
|
|
2744 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2745 | } |
|
|
2746 | #endif |
2514 | |
2747 | |
2515 | ev_start (EV_A_ (W)w, 1); |
2748 | ev_start (EV_A_ (W)w, 1); |
2516 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2749 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2517 | |
2750 | |
2518 | if (!((WL)w)->next) |
2751 | if (!((WL)w)->next) |
|
|
2752 | # if EV_USE_SIGNALFD |
|
|
2753 | if (sigfd < 0) /*TODO*/ |
|
|
2754 | # endif |
2519 | { |
2755 | { |
2520 | #if _WIN32 |
2756 | # if _WIN32 |
2521 | signal (w->signum, ev_sighandler); |
2757 | signal (w->signum, ev_sighandler); |
2522 | #else |
2758 | # else |
2523 | struct sigaction sa; |
2759 | struct sigaction sa; |
|
|
2760 | |
|
|
2761 | evpipe_init (EV_A); |
|
|
2762 | |
2524 | sa.sa_handler = ev_sighandler; |
2763 | sa.sa_handler = ev_sighandler; |
2525 | sigfillset (&sa.sa_mask); |
2764 | sigfillset (&sa.sa_mask); |
2526 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2765 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2527 | sigaction (w->signum, &sa, 0); |
2766 | sigaction (w->signum, &sa, 0); |
|
|
2767 | |
|
|
2768 | sigemptyset (&sa.sa_mask); |
|
|
2769 | sigaddset (&sa.sa_mask, w->signum); |
|
|
2770 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
2528 | #endif |
2771 | #endif |
2529 | } |
2772 | } |
2530 | |
2773 | |
2531 | EV_FREQUENT_CHECK; |
2774 | EV_FREQUENT_CHECK; |
2532 | } |
2775 | } |
2533 | |
2776 | |
2534 | void noinline |
2777 | void noinline |
… | |
… | |
2542 | |
2785 | |
2543 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2786 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2544 | ev_stop (EV_A_ (W)w); |
2787 | ev_stop (EV_A_ (W)w); |
2545 | |
2788 | |
2546 | if (!signals [w->signum - 1].head) |
2789 | if (!signals [w->signum - 1].head) |
|
|
2790 | { |
|
|
2791 | #if EV_MULTIPLICITY |
|
|
2792 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
|
|
2793 | #endif |
|
|
2794 | #if EV_USE_SIGNALFD |
|
|
2795 | if (sigfd >= 0) |
|
|
2796 | { |
|
|
2797 | sigprocmask (SIG_UNBLOCK, &sigfd_set, 0);//D |
|
|
2798 | sigdelset (&sigfd_set, w->signum); |
|
|
2799 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2800 | sigprocmask (SIG_BLOCK, &sigfd_set, 0);//D |
|
|
2801 | /*TODO: maybe unblock signal? */ |
|
|
2802 | } |
|
|
2803 | else |
|
|
2804 | #endif |
2547 | signal (w->signum, SIG_DFL); |
2805 | signal (w->signum, SIG_DFL); |
|
|
2806 | } |
2548 | |
2807 | |
2549 | EV_FREQUENT_CHECK; |
2808 | EV_FREQUENT_CHECK; |
2550 | } |
2809 | } |
2551 | |
2810 | |
2552 | void |
2811 | void |
… | |
… | |
2632 | } |
2891 | } |
2633 | } |
2892 | } |
2634 | |
2893 | |
2635 | if (w->wd >= 0) |
2894 | if (w->wd >= 0) |
2636 | { |
2895 | { |
|
|
2896 | struct statfs sfs; |
|
|
2897 | |
2637 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2898 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2638 | |
2899 | |
2639 | /* now local changes will be tracked by inotify, but remote changes won't */ |
2900 | /* now local changes will be tracked by inotify, but remote changes won't */ |
2640 | /* unless the filesystem it known to be local, we therefore still poll */ |
2901 | /* unless the filesystem it known to be local, we therefore still poll */ |
2641 | /* also do poll on <2.6.25, but with normal frequency */ |
2902 | /* also do poll on <2.6.25, but with normal frequency */ |
2642 | struct statfs sfs; |
|
|
2643 | |
2903 | |
2644 | if (fs_2625 && !statfs (w->path, &sfs)) |
2904 | if (fs_2625 && !statfs (w->path, &sfs)) |
2645 | if (sfs.f_type == 0x1373 /* devfs */ |
2905 | if (sfs.f_type == 0x1373 /* devfs */ |
2646 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
2906 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
2647 | || sfs.f_type == 0x3153464a /* jfs */ |
2907 | || sfs.f_type == 0x3153464a /* jfs */ |
… | |
… | |
2736 | return; |
2996 | return; |
2737 | |
2997 | |
2738 | fs_2625 = 1; |
2998 | fs_2625 = 1; |
2739 | } |
2999 | } |
2740 | |
3000 | |
|
|
3001 | inline_size int |
|
|
3002 | infy_newfd (void) |
|
|
3003 | { |
|
|
3004 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
|
|
3005 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
|
|
3006 | if (fd >= 0) |
|
|
3007 | return fd; |
|
|
3008 | #endif |
|
|
3009 | return inotify_init (); |
|
|
3010 | } |
|
|
3011 | |
2741 | inline_size void |
3012 | inline_size void |
2742 | infy_init (EV_P) |
3013 | infy_init (EV_P) |
2743 | { |
3014 | { |
2744 | if (fs_fd != -2) |
3015 | if (fs_fd != -2) |
2745 | return; |
3016 | return; |
2746 | |
3017 | |
2747 | fs_fd = -1; |
3018 | fs_fd = -1; |
2748 | |
3019 | |
2749 | check_2625 (EV_A); |
3020 | check_2625 (EV_A); |
2750 | |
3021 | |
2751 | fs_fd = inotify_init (); |
3022 | fs_fd = infy_newfd (); |
2752 | |
3023 | |
2753 | if (fs_fd >= 0) |
3024 | if (fs_fd >= 0) |
2754 | { |
3025 | { |
|
|
3026 | fd_intern (fs_fd); |
2755 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
3027 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
2756 | ev_set_priority (&fs_w, EV_MAXPRI); |
3028 | ev_set_priority (&fs_w, EV_MAXPRI); |
2757 | ev_io_start (EV_A_ &fs_w); |
3029 | ev_io_start (EV_A_ &fs_w); |
2758 | } |
3030 | } |
2759 | } |
3031 | } |
… | |
… | |
2764 | int slot; |
3036 | int slot; |
2765 | |
3037 | |
2766 | if (fs_fd < 0) |
3038 | if (fs_fd < 0) |
2767 | return; |
3039 | return; |
2768 | |
3040 | |
|
|
3041 | ev_io_stop (EV_A_ &fs_w); |
2769 | close (fs_fd); |
3042 | close (fs_fd); |
2770 | fs_fd = inotify_init (); |
3043 | fs_fd = infy_newfd (); |
|
|
3044 | |
|
|
3045 | if (fs_fd >= 0) |
|
|
3046 | { |
|
|
3047 | fd_intern (fs_fd); |
|
|
3048 | ev_io_set (&fs_w, fs_fd, EV_READ); |
|
|
3049 | ev_io_start (EV_A_ &fs_w); |
|
|
3050 | } |
2771 | |
3051 | |
2772 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3052 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2773 | { |
3053 | { |
2774 | WL w_ = fs_hash [slot].head; |
3054 | WL w_ = fs_hash [slot].head; |
2775 | fs_hash [slot].head = 0; |
3055 | fs_hash [slot].head = 0; |
… | |
… | |
3032 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3312 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3033 | { |
3313 | { |
3034 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
3314 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
3035 | |
3315 | |
3036 | { |
3316 | { |
3037 | struct ev_loop *loop = w->other; |
3317 | EV_P = w->other; |
3038 | |
3318 | |
3039 | while (fdchangecnt) |
3319 | while (fdchangecnt) |
3040 | { |
3320 | { |
3041 | fd_reify (EV_A); |
3321 | fd_reify (EV_A); |
3042 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3322 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
… | |
… | |
3050 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
3330 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
3051 | |
3331 | |
3052 | ev_embed_stop (EV_A_ w); |
3332 | ev_embed_stop (EV_A_ w); |
3053 | |
3333 | |
3054 | { |
3334 | { |
3055 | struct ev_loop *loop = w->other; |
3335 | EV_P = w->other; |
3056 | |
3336 | |
3057 | ev_loop_fork (EV_A); |
3337 | ev_loop_fork (EV_A); |
3058 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3338 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3059 | } |
3339 | } |
3060 | |
3340 | |
… | |
… | |
3074 | { |
3354 | { |
3075 | if (expect_false (ev_is_active (w))) |
3355 | if (expect_false (ev_is_active (w))) |
3076 | return; |
3356 | return; |
3077 | |
3357 | |
3078 | { |
3358 | { |
3079 | struct ev_loop *loop = w->other; |
3359 | EV_P = w->other; |
3080 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3360 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3081 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3361 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3082 | } |
3362 | } |
3083 | |
3363 | |
3084 | EV_FREQUENT_CHECK; |
3364 | EV_FREQUENT_CHECK; |
… | |
… | |
3196 | |
3476 | |
3197 | void |
3477 | void |
3198 | ev_async_send (EV_P_ ev_async *w) |
3478 | ev_async_send (EV_P_ ev_async *w) |
3199 | { |
3479 | { |
3200 | w->sent = 1; |
3480 | w->sent = 1; |
3201 | evpipe_write (EV_A_ &gotasync); |
3481 | evpipe_write (EV_A_ &async_pending); |
3202 | } |
3482 | } |
3203 | #endif |
3483 | #endif |
3204 | |
3484 | |
3205 | /*****************************************************************************/ |
3485 | /*****************************************************************************/ |
3206 | |
3486 | |
… | |
… | |
3355 | if (types & EV_CHECK) |
3635 | if (types & EV_CHECK) |
3356 | for (i = checkcnt; i--; ) |
3636 | for (i = checkcnt; i--; ) |
3357 | cb (EV_A_ EV_CHECK, checks [i]); |
3637 | cb (EV_A_ EV_CHECK, checks [i]); |
3358 | |
3638 | |
3359 | if (types & EV_SIGNAL) |
3639 | if (types & EV_SIGNAL) |
3360 | for (i = 0; i < signalmax; ++i) |
3640 | for (i = 0; i < EV_NSIG - 1; ++i) |
3361 | for (wl = signals [i].head; wl; ) |
3641 | for (wl = signals [i].head; wl; ) |
3362 | { |
3642 | { |
3363 | wn = wl->next; |
3643 | wn = wl->next; |
3364 | cb (EV_A_ EV_SIGNAL, wl); |
3644 | cb (EV_A_ EV_SIGNAL, wl); |
3365 | wl = wn; |
3645 | wl = wn; |