… | |
… | |
110 | # define EV_USE_EPOLL 0 |
110 | # define EV_USE_EPOLL 0 |
111 | # endif |
111 | # endif |
112 | # endif |
112 | # endif |
113 | |
113 | |
114 | # ifndef EV_USE_KQUEUE |
114 | # ifndef EV_USE_KQUEUE |
115 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
115 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
116 | # define EV_USE_KQUEUE 1 |
116 | # define EV_USE_KQUEUE 1 |
117 | # else |
117 | # else |
118 | # define EV_USE_KQUEUE 0 |
118 | # define EV_USE_KQUEUE 0 |
119 | # endif |
119 | # endif |
120 | # endif |
120 | # endif |
… | |
… | |
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 |
… | |
… | |
145 | |
153 | |
146 | #endif |
154 | #endif |
147 | |
155 | |
148 | #include <math.h> |
156 | #include <math.h> |
149 | #include <stdlib.h> |
157 | #include <stdlib.h> |
|
|
158 | #include <string.h> |
150 | #include <fcntl.h> |
159 | #include <fcntl.h> |
151 | #include <stddef.h> |
160 | #include <stddef.h> |
152 | |
161 | |
153 | #include <stdio.h> |
162 | #include <stdio.h> |
154 | |
163 | |
… | |
… | |
178 | # endif |
187 | # endif |
179 | #endif |
188 | #endif |
180 | |
189 | |
181 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
190 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
182 | |
191 | |
|
|
192 | /* try to deduce the maximum number of signals on this platform */ |
|
|
193 | #if defined (EV_NSIG) |
|
|
194 | /* use what's provided */ |
|
|
195 | #elif defined (NSIG) |
|
|
196 | # define EV_NSIG (NSIG) |
|
|
197 | #elif defined(_NSIG) |
|
|
198 | # define EV_NSIG (_NSIG) |
|
|
199 | #elif defined (SIGMAX) |
|
|
200 | # define EV_NSIG (SIGMAX+1) |
|
|
201 | #elif defined (SIG_MAX) |
|
|
202 | # define EV_NSIG (SIG_MAX+1) |
|
|
203 | #elif defined (_SIG_MAX) |
|
|
204 | # define EV_NSIG (_SIG_MAX+1) |
|
|
205 | #elif defined (MAXSIG) |
|
|
206 | # define EV_NSIG (MAXSIG+1) |
|
|
207 | #elif defined (MAX_SIG) |
|
|
208 | # define EV_NSIG (MAX_SIG+1) |
|
|
209 | #elif defined (SIGARRAYSIZE) |
|
|
210 | # define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */ |
|
|
211 | #elif defined (_sys_nsig) |
|
|
212 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
|
|
213 | #else |
|
|
214 | # error "unable to find value for NSIG, please report" |
|
|
215 | /* to make it compile regardless, just remove the above line */ |
|
|
216 | # define EV_NSIG 65 |
|
|
217 | #endif |
|
|
218 | |
183 | #ifndef EV_USE_CLOCK_SYSCALL |
219 | #ifndef EV_USE_CLOCK_SYSCALL |
184 | # if __linux && __GLIBC__ >= 2 |
220 | # if __linux && __GLIBC__ >= 2 |
185 | # define EV_USE_CLOCK_SYSCALL 1 |
221 | # define EV_USE_CLOCK_SYSCALL 1 |
186 | # else |
222 | # else |
187 | # define EV_USE_CLOCK_SYSCALL 0 |
223 | # define EV_USE_CLOCK_SYSCALL 0 |
… | |
… | |
263 | #ifndef EV_USE_EVENTFD |
299 | #ifndef EV_USE_EVENTFD |
264 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
300 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
265 | # define EV_USE_EVENTFD 1 |
301 | # define EV_USE_EVENTFD 1 |
266 | # else |
302 | # else |
267 | # define EV_USE_EVENTFD 0 |
303 | # define EV_USE_EVENTFD 0 |
|
|
304 | # endif |
|
|
305 | #endif |
|
|
306 | |
|
|
307 | #ifndef EV_USE_SIGNALFD |
|
|
308 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
|
|
309 | # define EV_USE_SIGNALFD 1 |
|
|
310 | # else |
|
|
311 | # define EV_USE_SIGNALFD 0 |
268 | # endif |
312 | # endif |
269 | #endif |
313 | #endif |
270 | |
314 | |
271 | #if 0 /* debugging */ |
315 | #if 0 /* debugging */ |
272 | # define EV_VERIFY 3 |
316 | # define EV_VERIFY 3 |
… | |
… | |
300 | # endif |
344 | # endif |
301 | #endif |
345 | #endif |
302 | |
346 | |
303 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
347 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
304 | |
348 | |
|
|
349 | #ifdef _AIX |
|
|
350 | /* AIX has a completely broken poll.h header */ |
|
|
351 | # undef EV_USE_POLL |
|
|
352 | # define EV_USE_POLL 0 |
|
|
353 | #endif |
|
|
354 | |
305 | #ifndef CLOCK_MONOTONIC |
355 | #ifndef CLOCK_MONOTONIC |
306 | # undef EV_USE_MONOTONIC |
356 | # undef EV_USE_MONOTONIC |
307 | # define EV_USE_MONOTONIC 0 |
357 | # define EV_USE_MONOTONIC 0 |
308 | #endif |
358 | #endif |
309 | |
359 | |
… | |
… | |
339 | #endif |
389 | #endif |
340 | |
390 | |
341 | #if EV_USE_EVENTFD |
391 | #if EV_USE_EVENTFD |
342 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
392 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
343 | # include <stdint.h> |
393 | # include <stdint.h> |
|
|
394 | # ifndef EFD_NONBLOCK |
|
|
395 | # define EFD_NONBLOCK O_NONBLOCK |
|
|
396 | # endif |
|
|
397 | # ifndef EFD_CLOEXEC |
|
|
398 | # ifdef O_CLOEXEC |
|
|
399 | # define EFD_CLOEXEC O_CLOEXEC |
|
|
400 | # else |
|
|
401 | # define EFD_CLOEXEC 02000000 |
|
|
402 | # endif |
|
|
403 | # endif |
344 | # ifdef __cplusplus |
404 | # ifdef __cplusplus |
345 | extern "C" { |
405 | extern "C" { |
346 | # endif |
406 | # endif |
347 | int eventfd (unsigned int initval, int flags); |
407 | int eventfd (unsigned int initval, int flags); |
348 | # ifdef __cplusplus |
408 | # ifdef __cplusplus |
349 | } |
409 | } |
350 | # endif |
410 | # endif |
351 | #endif |
411 | #endif |
|
|
412 | |
|
|
413 | #if EV_USE_SIGNALFD |
|
|
414 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
|
|
415 | # include <stdint.h> |
|
|
416 | # ifndef SFD_NONBLOCK |
|
|
417 | # define SFD_NONBLOCK O_NONBLOCK |
|
|
418 | # endif |
|
|
419 | # ifndef SFD_CLOEXEC |
|
|
420 | # ifdef O_CLOEXEC |
|
|
421 | # define SFD_CLOEXEC O_CLOEXEC |
|
|
422 | # else |
|
|
423 | # define SFD_CLOEXEC 02000000 |
|
|
424 | # endif |
|
|
425 | # endif |
|
|
426 | # ifdef __cplusplus |
|
|
427 | extern "C" { |
|
|
428 | # endif |
|
|
429 | int signalfd (int fd, const sigset_t *mask, int flags); |
|
|
430 | |
|
|
431 | struct signalfd_siginfo |
|
|
432 | { |
|
|
433 | uint32_t ssi_signo; |
|
|
434 | char pad[128 - sizeof (uint32_t)]; |
|
|
435 | }; |
|
|
436 | # ifdef __cplusplus |
|
|
437 | } |
|
|
438 | # endif |
|
|
439 | #endif |
|
|
440 | |
352 | |
441 | |
353 | /**/ |
442 | /**/ |
354 | |
443 | |
355 | #if EV_VERIFY >= 3 |
444 | #if EV_VERIFY >= 3 |
356 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
445 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
… | |
… | |
368 | */ |
457 | */ |
369 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
458 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
370 | |
459 | |
371 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
460 | #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) */ |
461 | #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 | |
462 | |
375 | #if __GNUC__ >= 4 |
463 | #if __GNUC__ >= 4 |
376 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
464 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
377 | # define noinline __attribute__ ((noinline)) |
465 | # define noinline __attribute__ ((noinline)) |
378 | #else |
466 | #else |
… | |
… | |
391 | # define inline_speed static noinline |
479 | # define inline_speed static noinline |
392 | #else |
480 | #else |
393 | # define inline_speed static inline |
481 | # define inline_speed static inline |
394 | #endif |
482 | #endif |
395 | |
483 | |
396 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
484 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
485 | |
|
|
486 | #if EV_MINPRI == EV_MAXPRI |
|
|
487 | # define ABSPRI(w) (((W)w), 0) |
|
|
488 | #else |
397 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
489 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
|
|
490 | #endif |
398 | |
491 | |
399 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
492 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
400 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
493 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
401 | |
494 | |
402 | typedef ev_watcher *W; |
495 | typedef ev_watcher *W; |
… | |
… | |
414 | |
507 | |
415 | #if EV_USE_MONOTONIC |
508 | #if EV_USE_MONOTONIC |
416 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
509 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
417 | #endif |
510 | #endif |
418 | |
511 | |
|
|
512 | #ifndef EV_FD_TO_WIN32_HANDLE |
|
|
513 | # define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
|
|
514 | #endif |
|
|
515 | #ifndef EV_WIN32_HANDLE_TO_FD |
|
|
516 | # define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0) |
|
|
517 | #endif |
|
|
518 | #ifndef EV_WIN32_CLOSE_FD |
|
|
519 | # define EV_WIN32_CLOSE_FD(fd) close (fd) |
|
|
520 | #endif |
|
|
521 | |
419 | #ifdef _WIN32 |
522 | #ifdef _WIN32 |
420 | # include "ev_win32.c" |
523 | # include "ev_win32.c" |
421 | #endif |
524 | #endif |
422 | |
525 | |
423 | /*****************************************************************************/ |
526 | /*****************************************************************************/ |
… | |
… | |
485 | #define ev_malloc(size) ev_realloc (0, (size)) |
588 | #define ev_malloc(size) ev_realloc (0, (size)) |
486 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
589 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
487 | |
590 | |
488 | /*****************************************************************************/ |
591 | /*****************************************************************************/ |
489 | |
592 | |
|
|
593 | /* set in reify when reification needed */ |
|
|
594 | #define EV_ANFD_REIFY 1 |
|
|
595 | |
490 | /* file descriptor info structure */ |
596 | /* file descriptor info structure */ |
491 | typedef struct |
597 | typedef struct |
492 | { |
598 | { |
493 | WL head; |
599 | WL head; |
494 | unsigned char events; /* the events watched for */ |
600 | unsigned char events; /* the events watched for */ |
495 | unsigned char reify; /* flag set when this ANFD needs reification */ |
601 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
496 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
602 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
497 | unsigned char unused; |
603 | unsigned char unused; |
498 | #if EV_USE_EPOLL |
604 | #if EV_USE_EPOLL |
499 | unsigned int egen; /* generation counter to counter epoll bugs */ |
605 | unsigned int egen; /* generation counter to counter epoll bugs */ |
500 | #endif |
606 | #endif |
… | |
… | |
562 | |
668 | |
563 | static int ev_default_loop_ptr; |
669 | static int ev_default_loop_ptr; |
564 | |
670 | |
565 | #endif |
671 | #endif |
566 | |
672 | |
|
|
673 | #if EV_MINIMAL < 2 |
|
|
674 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
|
|
675 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
|
|
676 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
|
|
677 | #else |
|
|
678 | # define EV_RELEASE_CB (void)0 |
|
|
679 | # define EV_ACQUIRE_CB (void)0 |
|
|
680 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
|
|
681 | #endif |
|
|
682 | |
|
|
683 | #define EVUNLOOP_RECURSE 0x80 |
|
|
684 | |
567 | /*****************************************************************************/ |
685 | /*****************************************************************************/ |
568 | |
686 | |
569 | #ifndef EV_HAVE_EV_TIME |
687 | #ifndef EV_HAVE_EV_TIME |
570 | ev_tstamp |
688 | ev_tstamp |
571 | ev_time (void) |
689 | ev_time (void) |
… | |
… | |
627 | |
745 | |
628 | tv.tv_sec = (time_t)delay; |
746 | tv.tv_sec = (time_t)delay; |
629 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
747 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
630 | |
748 | |
631 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
749 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
632 | /* somehting nto guaranteed by newer posix versions, but guaranteed */ |
750 | /* something not guaranteed by newer posix versions, but guaranteed */ |
633 | /* by older ones */ |
751 | /* by older ones */ |
634 | select (0, 0, 0, 0, &tv); |
752 | select (0, 0, 0, 0, &tv); |
635 | #endif |
753 | #endif |
636 | } |
754 | } |
637 | } |
755 | } |
… | |
… | |
745 | } |
863 | } |
746 | |
864 | |
747 | /*****************************************************************************/ |
865 | /*****************************************************************************/ |
748 | |
866 | |
749 | inline_speed void |
867 | inline_speed void |
750 | fd_event (EV_P_ int fd, int revents) |
868 | fd_event_nc (EV_P_ int fd, int revents) |
751 | { |
869 | { |
752 | ANFD *anfd = anfds + fd; |
870 | ANFD *anfd = anfds + fd; |
753 | ev_io *w; |
871 | ev_io *w; |
754 | |
872 | |
755 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
873 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
759 | if (ev) |
877 | if (ev) |
760 | ev_feed_event (EV_A_ (W)w, ev); |
878 | ev_feed_event (EV_A_ (W)w, ev); |
761 | } |
879 | } |
762 | } |
880 | } |
763 | |
881 | |
|
|
882 | /* do not submit kernel events for fds that have reify set */ |
|
|
883 | /* because that means they changed while we were polling for new events */ |
|
|
884 | inline_speed void |
|
|
885 | fd_event (EV_P_ int fd, int revents) |
|
|
886 | { |
|
|
887 | ANFD *anfd = anfds + fd; |
|
|
888 | |
|
|
889 | if (expect_true (!anfd->reify)) |
|
|
890 | fd_event_nc (EV_A_ fd, revents); |
|
|
891 | } |
|
|
892 | |
764 | void |
893 | void |
765 | ev_feed_fd_event (EV_P_ int fd, int revents) |
894 | ev_feed_fd_event (EV_P_ int fd, int revents) |
766 | { |
895 | { |
767 | if (fd >= 0 && fd < anfdmax) |
896 | if (fd >= 0 && fd < anfdmax) |
768 | fd_event (EV_A_ fd, revents); |
897 | fd_event_nc (EV_A_ fd, revents); |
769 | } |
898 | } |
770 | |
899 | |
771 | /* make sure the external fd watch events are in-sync */ |
900 | /* make sure the external fd watch events are in-sync */ |
772 | /* with the kernel/libev internal state */ |
901 | /* with the kernel/libev internal state */ |
773 | inline_size void |
902 | inline_size void |
… | |
… | |
788 | |
917 | |
789 | #if EV_SELECT_IS_WINSOCKET |
918 | #if EV_SELECT_IS_WINSOCKET |
790 | if (events) |
919 | if (events) |
791 | { |
920 | { |
792 | unsigned long arg; |
921 | unsigned long arg; |
793 | #ifdef EV_FD_TO_WIN32_HANDLE |
|
|
794 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
922 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
795 | #else |
|
|
796 | anfd->handle = _get_osfhandle (fd); |
|
|
797 | #endif |
|
|
798 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
923 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
799 | } |
924 | } |
800 | #endif |
925 | #endif |
801 | |
926 | |
802 | { |
927 | { |
… | |
… | |
845 | /* check whether the given fd is atcually valid, for error recovery */ |
970 | /* check whether the given fd is atcually valid, for error recovery */ |
846 | inline_size int |
971 | inline_size int |
847 | fd_valid (int fd) |
972 | fd_valid (int fd) |
848 | { |
973 | { |
849 | #ifdef _WIN32 |
974 | #ifdef _WIN32 |
850 | return _get_osfhandle (fd) != -1; |
975 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
851 | #else |
976 | #else |
852 | return fcntl (fd, F_GETFD) != -1; |
977 | return fcntl (fd, F_GETFD) != -1; |
853 | #endif |
978 | #endif |
854 | } |
979 | } |
855 | |
980 | |
… | |
… | |
873 | |
998 | |
874 | for (fd = anfdmax; fd--; ) |
999 | for (fd = anfdmax; fd--; ) |
875 | if (anfds [fd].events) |
1000 | if (anfds [fd].events) |
876 | { |
1001 | { |
877 | fd_kill (EV_A_ fd); |
1002 | fd_kill (EV_A_ fd); |
878 | return; |
1003 | break; |
879 | } |
1004 | } |
880 | } |
1005 | } |
881 | |
1006 | |
882 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1007 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
883 | static void noinline |
1008 | static void noinline |
… | |
… | |
888 | for (fd = 0; fd < anfdmax; ++fd) |
1013 | for (fd = 0; fd < anfdmax; ++fd) |
889 | if (anfds [fd].events) |
1014 | if (anfds [fd].events) |
890 | { |
1015 | { |
891 | anfds [fd].events = 0; |
1016 | anfds [fd].events = 0; |
892 | anfds [fd].emask = 0; |
1017 | anfds [fd].emask = 0; |
893 | fd_change (EV_A_ fd, EV__IOFDSET | 1); |
1018 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
894 | } |
1019 | } |
895 | } |
1020 | } |
896 | |
1021 | |
897 | /*****************************************************************************/ |
1022 | /*****************************************************************************/ |
898 | |
1023 | |
… | |
… | |
973 | |
1098 | |
974 | for (;;) |
1099 | for (;;) |
975 | { |
1100 | { |
976 | int c = k << 1; |
1101 | int c = k << 1; |
977 | |
1102 | |
978 | if (c > N + HEAP0 - 1) |
1103 | if (c >= N + HEAP0) |
979 | break; |
1104 | break; |
980 | |
1105 | |
981 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
1106 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
982 | ? 1 : 0; |
1107 | ? 1 : 0; |
983 | |
1108 | |
… | |
… | |
1019 | |
1144 | |
1020 | /* move an element suitably so it is in a correct place */ |
1145 | /* move an element suitably so it is in a correct place */ |
1021 | inline_size void |
1146 | inline_size void |
1022 | adjustheap (ANHE *heap, int N, int k) |
1147 | adjustheap (ANHE *heap, int N, int k) |
1023 | { |
1148 | { |
1024 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
1149 | if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)])) |
1025 | upheap (heap, k); |
1150 | upheap (heap, k); |
1026 | else |
1151 | else |
1027 | downheap (heap, N, k); |
1152 | downheap (heap, N, k); |
1028 | } |
1153 | } |
1029 | |
1154 | |
… | |
… | |
1042 | /*****************************************************************************/ |
1167 | /*****************************************************************************/ |
1043 | |
1168 | |
1044 | /* associate signal watchers to a signal signal */ |
1169 | /* associate signal watchers to a signal signal */ |
1045 | typedef struct |
1170 | typedef struct |
1046 | { |
1171 | { |
|
|
1172 | EV_ATOMIC_T pending; |
|
|
1173 | #if EV_MULTIPLICITY |
|
|
1174 | EV_P; |
|
|
1175 | #endif |
1047 | WL head; |
1176 | WL head; |
1048 | EV_ATOMIC_T gotsig; |
|
|
1049 | } ANSIG; |
1177 | } ANSIG; |
1050 | |
1178 | |
1051 | static ANSIG *signals; |
1179 | static ANSIG signals [EV_NSIG - 1]; |
1052 | static int signalmax; |
|
|
1053 | |
|
|
1054 | static EV_ATOMIC_T gotsig; |
|
|
1055 | |
1180 | |
1056 | /*****************************************************************************/ |
1181 | /*****************************************************************************/ |
1057 | |
1182 | |
1058 | /* used to prepare libev internal fd's */ |
1183 | /* used to prepare libev internal fd's */ |
1059 | /* this is not fork-safe */ |
1184 | /* this is not fork-safe */ |
1060 | inline_speed void |
1185 | inline_speed void |
1061 | fd_intern (int fd) |
1186 | fd_intern (int fd) |
1062 | { |
1187 | { |
1063 | #ifdef _WIN32 |
1188 | #ifdef _WIN32 |
1064 | unsigned long arg = 1; |
1189 | unsigned long arg = 1; |
1065 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
1190 | ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg); |
1066 | #else |
1191 | #else |
1067 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
1192 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
1068 | fcntl (fd, F_SETFL, O_NONBLOCK); |
1193 | fcntl (fd, F_SETFL, O_NONBLOCK); |
1069 | #endif |
1194 | #endif |
1070 | } |
1195 | } |
… | |
… | |
1073 | evpipe_init (EV_P) |
1198 | evpipe_init (EV_P) |
1074 | { |
1199 | { |
1075 | if (!ev_is_active (&pipe_w)) |
1200 | if (!ev_is_active (&pipe_w)) |
1076 | { |
1201 | { |
1077 | #if EV_USE_EVENTFD |
1202 | #if EV_USE_EVENTFD |
|
|
1203 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
|
|
1204 | if (evfd < 0 && errno == EINVAL) |
1078 | if ((evfd = eventfd (0, 0)) >= 0) |
1205 | evfd = eventfd (0, 0); |
|
|
1206 | |
|
|
1207 | if (evfd >= 0) |
1079 | { |
1208 | { |
1080 | evpipe [0] = -1; |
1209 | evpipe [0] = -1; |
1081 | fd_intern (evfd); |
1210 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
1082 | ev_io_set (&pipe_w, evfd, EV_READ); |
1211 | ev_io_set (&pipe_w, evfd, EV_READ); |
1083 | } |
1212 | } |
1084 | else |
1213 | else |
1085 | #endif |
1214 | #endif |
1086 | { |
1215 | { |
… | |
… | |
1123 | /* called whenever the libev signal pipe */ |
1252 | /* called whenever the libev signal pipe */ |
1124 | /* got some events (signal, async) */ |
1253 | /* got some events (signal, async) */ |
1125 | static void |
1254 | static void |
1126 | pipecb (EV_P_ ev_io *iow, int revents) |
1255 | pipecb (EV_P_ ev_io *iow, int revents) |
1127 | { |
1256 | { |
|
|
1257 | int i; |
|
|
1258 | |
1128 | #if EV_USE_EVENTFD |
1259 | #if EV_USE_EVENTFD |
1129 | if (evfd >= 0) |
1260 | if (evfd >= 0) |
1130 | { |
1261 | { |
1131 | uint64_t counter; |
1262 | uint64_t counter; |
1132 | read (evfd, &counter, sizeof (uint64_t)); |
1263 | read (evfd, &counter, sizeof (uint64_t)); |
… | |
… | |
1136 | { |
1267 | { |
1137 | char dummy; |
1268 | char dummy; |
1138 | read (evpipe [0], &dummy, 1); |
1269 | read (evpipe [0], &dummy, 1); |
1139 | } |
1270 | } |
1140 | |
1271 | |
1141 | if (gotsig && ev_is_default_loop (EV_A)) |
1272 | if (sig_pending) |
1142 | { |
1273 | { |
1143 | int signum; |
1274 | sig_pending = 0; |
1144 | gotsig = 0; |
|
|
1145 | |
1275 | |
1146 | for (signum = signalmax; signum--; ) |
1276 | for (i = EV_NSIG - 1; i--; ) |
1147 | if (signals [signum].gotsig) |
1277 | if (expect_false (signals [i].pending)) |
1148 | ev_feed_signal_event (EV_A_ signum + 1); |
1278 | ev_feed_signal_event (EV_A_ i + 1); |
1149 | } |
1279 | } |
1150 | |
1280 | |
1151 | #if EV_ASYNC_ENABLE |
1281 | #if EV_ASYNC_ENABLE |
1152 | if (gotasync) |
1282 | if (async_pending) |
1153 | { |
1283 | { |
1154 | int i; |
1284 | async_pending = 0; |
1155 | gotasync = 0; |
|
|
1156 | |
1285 | |
1157 | for (i = asynccnt; i--; ) |
1286 | for (i = asynccnt; i--; ) |
1158 | if (asyncs [i]->sent) |
1287 | if (asyncs [i]->sent) |
1159 | { |
1288 | { |
1160 | asyncs [i]->sent = 0; |
1289 | asyncs [i]->sent = 0; |
… | |
… | |
1168 | |
1297 | |
1169 | static void |
1298 | static void |
1170 | ev_sighandler (int signum) |
1299 | ev_sighandler (int signum) |
1171 | { |
1300 | { |
1172 | #if EV_MULTIPLICITY |
1301 | #if EV_MULTIPLICITY |
1173 | struct ev_loop *loop = &default_loop_struct; |
1302 | EV_P = signals [signum - 1].loop; |
1174 | #endif |
1303 | #endif |
1175 | |
1304 | |
1176 | #if _WIN32 |
1305 | #ifdef _WIN32 |
1177 | signal (signum, ev_sighandler); |
1306 | signal (signum, ev_sighandler); |
1178 | #endif |
1307 | #endif |
1179 | |
1308 | |
1180 | signals [signum - 1].gotsig = 1; |
1309 | signals [signum - 1].pending = 1; |
1181 | evpipe_write (EV_A_ &gotsig); |
1310 | evpipe_write (EV_A_ &sig_pending); |
1182 | } |
1311 | } |
1183 | |
1312 | |
1184 | void noinline |
1313 | void noinline |
1185 | ev_feed_signal_event (EV_P_ int signum) |
1314 | ev_feed_signal_event (EV_P_ int signum) |
1186 | { |
1315 | { |
1187 | WL w; |
1316 | WL w; |
1188 | |
1317 | |
|
|
1318 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
|
|
1319 | return; |
|
|
1320 | |
|
|
1321 | --signum; |
|
|
1322 | |
1189 | #if EV_MULTIPLICITY |
1323 | #if EV_MULTIPLICITY |
1190 | assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1324 | /* it is permissible to try to feed a signal to the wrong loop */ |
1191 | #endif |
1325 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
1192 | |
1326 | |
1193 | --signum; |
1327 | if (expect_false (signals [signum].loop != EV_A)) |
1194 | |
|
|
1195 | if (signum < 0 || signum >= signalmax) |
|
|
1196 | return; |
1328 | return; |
|
|
1329 | #endif |
1197 | |
1330 | |
1198 | signals [signum].gotsig = 0; |
1331 | signals [signum].pending = 0; |
1199 | |
1332 | |
1200 | for (w = signals [signum].head; w; w = w->next) |
1333 | for (w = signals [signum].head; w; w = w->next) |
1201 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1334 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1202 | } |
1335 | } |
|
|
1336 | |
|
|
1337 | #if EV_USE_SIGNALFD |
|
|
1338 | static void |
|
|
1339 | sigfdcb (EV_P_ ev_io *iow, int revents) |
|
|
1340 | { |
|
|
1341 | struct signalfd_siginfo si[2], *sip; /* these structs are big */ |
|
|
1342 | |
|
|
1343 | for (;;) |
|
|
1344 | { |
|
|
1345 | ssize_t res = read (sigfd, si, sizeof (si)); |
|
|
1346 | |
|
|
1347 | /* not ISO-C, as res might be -1, but works with SuS */ |
|
|
1348 | for (sip = si; (char *)sip < (char *)si + res; ++sip) |
|
|
1349 | ev_feed_signal_event (EV_A_ sip->ssi_signo); |
|
|
1350 | |
|
|
1351 | if (res < (ssize_t)sizeof (si)) |
|
|
1352 | break; |
|
|
1353 | } |
|
|
1354 | } |
|
|
1355 | #endif |
1203 | |
1356 | |
1204 | /*****************************************************************************/ |
1357 | /*****************************************************************************/ |
1205 | |
1358 | |
1206 | static WL childs [EV_PID_HASHSIZE]; |
1359 | static WL childs [EV_PID_HASHSIZE]; |
1207 | |
1360 | |
… | |
… | |
1352 | ev_backend (EV_P) |
1505 | ev_backend (EV_P) |
1353 | { |
1506 | { |
1354 | return backend; |
1507 | return backend; |
1355 | } |
1508 | } |
1356 | |
1509 | |
|
|
1510 | #if EV_MINIMAL < 2 |
1357 | unsigned int |
1511 | unsigned int |
1358 | ev_loop_count (EV_P) |
1512 | ev_loop_count (EV_P) |
1359 | { |
1513 | { |
1360 | return loop_count; |
1514 | return loop_count; |
1361 | } |
1515 | } |
1362 | |
1516 | |
|
|
1517 | unsigned int |
|
|
1518 | ev_loop_depth (EV_P) |
|
|
1519 | { |
|
|
1520 | return loop_depth; |
|
|
1521 | } |
|
|
1522 | |
1363 | void |
1523 | void |
1364 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1524 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1365 | { |
1525 | { |
1366 | io_blocktime = interval; |
1526 | io_blocktime = interval; |
1367 | } |
1527 | } |
… | |
… | |
1369 | void |
1529 | void |
1370 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1530 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1371 | { |
1531 | { |
1372 | timeout_blocktime = interval; |
1532 | timeout_blocktime = interval; |
1373 | } |
1533 | } |
|
|
1534 | |
|
|
1535 | void |
|
|
1536 | ev_set_userdata (EV_P_ void *data) |
|
|
1537 | { |
|
|
1538 | userdata = data; |
|
|
1539 | } |
|
|
1540 | |
|
|
1541 | void * |
|
|
1542 | ev_userdata (EV_P) |
|
|
1543 | { |
|
|
1544 | return userdata; |
|
|
1545 | } |
|
|
1546 | |
|
|
1547 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
|
|
1548 | { |
|
|
1549 | invoke_cb = invoke_pending_cb; |
|
|
1550 | } |
|
|
1551 | |
|
|
1552 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
|
|
1553 | { |
|
|
1554 | release_cb = release; |
|
|
1555 | acquire_cb = acquire; |
|
|
1556 | } |
|
|
1557 | #endif |
1374 | |
1558 | |
1375 | /* initialise a loop structure, must be zero-initialised */ |
1559 | /* initialise a loop structure, must be zero-initialised */ |
1376 | static void noinline |
1560 | static void noinline |
1377 | loop_init (EV_P_ unsigned int flags) |
1561 | loop_init (EV_P_ unsigned int flags) |
1378 | { |
1562 | { |
… | |
… | |
1396 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1580 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1397 | have_monotonic = 1; |
1581 | have_monotonic = 1; |
1398 | } |
1582 | } |
1399 | #endif |
1583 | #endif |
1400 | |
1584 | |
|
|
1585 | /* pid check not overridable via env */ |
|
|
1586 | #ifndef _WIN32 |
|
|
1587 | if (flags & EVFLAG_FORKCHECK) |
|
|
1588 | curpid = getpid (); |
|
|
1589 | #endif |
|
|
1590 | |
|
|
1591 | if (!(flags & EVFLAG_NOENV) |
|
|
1592 | && !enable_secure () |
|
|
1593 | && getenv ("LIBEV_FLAGS")) |
|
|
1594 | flags = atoi (getenv ("LIBEV_FLAGS")); |
|
|
1595 | |
1401 | ev_rt_now = ev_time (); |
1596 | ev_rt_now = ev_time (); |
1402 | mn_now = get_clock (); |
1597 | mn_now = get_clock (); |
1403 | now_floor = mn_now; |
1598 | now_floor = mn_now; |
1404 | rtmn_diff = ev_rt_now - mn_now; |
1599 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1600 | #if EV_MINIMAL < 2 |
|
|
1601 | invoke_cb = ev_invoke_pending; |
|
|
1602 | #endif |
1405 | |
1603 | |
1406 | io_blocktime = 0.; |
1604 | io_blocktime = 0.; |
1407 | timeout_blocktime = 0.; |
1605 | timeout_blocktime = 0.; |
1408 | backend = 0; |
1606 | backend = 0; |
1409 | backend_fd = -1; |
1607 | backend_fd = -1; |
1410 | gotasync = 0; |
1608 | sig_pending = 0; |
|
|
1609 | #if EV_ASYNC_ENABLE |
|
|
1610 | async_pending = 0; |
|
|
1611 | #endif |
1411 | #if EV_USE_INOTIFY |
1612 | #if EV_USE_INOTIFY |
1412 | fs_fd = -2; |
1613 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1413 | #endif |
1614 | #endif |
1414 | |
1615 | #if EV_USE_SIGNALFD |
1415 | /* pid check not overridable via env */ |
1616 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
1416 | #ifndef _WIN32 |
|
|
1417 | if (flags & EVFLAG_FORKCHECK) |
|
|
1418 | curpid = getpid (); |
|
|
1419 | #endif |
1617 | #endif |
1420 | |
|
|
1421 | if (!(flags & EVFLAG_NOENV) |
|
|
1422 | && !enable_secure () |
|
|
1423 | && getenv ("LIBEV_FLAGS")) |
|
|
1424 | flags = atoi (getenv ("LIBEV_FLAGS")); |
|
|
1425 | |
1618 | |
1426 | if (!(flags & 0x0000ffffU)) |
1619 | if (!(flags & 0x0000ffffU)) |
1427 | flags |= ev_recommended_backends (); |
1620 | flags |= ev_recommended_backends (); |
1428 | |
1621 | |
1429 | #if EV_USE_PORT |
1622 | #if EV_USE_PORT |
… | |
… | |
1455 | { |
1648 | { |
1456 | int i; |
1649 | int i; |
1457 | |
1650 | |
1458 | if (ev_is_active (&pipe_w)) |
1651 | if (ev_is_active (&pipe_w)) |
1459 | { |
1652 | { |
1460 | ev_ref (EV_A); /* signal watcher */ |
1653 | /*ev_ref (EV_A);*/ |
1461 | ev_io_stop (EV_A_ &pipe_w); |
1654 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1462 | |
1655 | |
1463 | #if EV_USE_EVENTFD |
1656 | #if EV_USE_EVENTFD |
1464 | if (evfd >= 0) |
1657 | if (evfd >= 0) |
1465 | close (evfd); |
1658 | close (evfd); |
1466 | #endif |
1659 | #endif |
1467 | |
1660 | |
1468 | if (evpipe [0] >= 0) |
1661 | if (evpipe [0] >= 0) |
1469 | { |
1662 | { |
1470 | close (evpipe [0]); |
1663 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1471 | close (evpipe [1]); |
1664 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1472 | } |
1665 | } |
1473 | } |
1666 | } |
|
|
1667 | |
|
|
1668 | #if EV_USE_SIGNALFD |
|
|
1669 | if (ev_is_active (&sigfd_w)) |
|
|
1670 | close (sigfd); |
|
|
1671 | #endif |
1474 | |
1672 | |
1475 | #if EV_USE_INOTIFY |
1673 | #if EV_USE_INOTIFY |
1476 | if (fs_fd >= 0) |
1674 | if (fs_fd >= 0) |
1477 | close (fs_fd); |
1675 | close (fs_fd); |
1478 | #endif |
1676 | #endif |
… | |
… | |
1502 | #if EV_IDLE_ENABLE |
1700 | #if EV_IDLE_ENABLE |
1503 | array_free (idle, [i]); |
1701 | array_free (idle, [i]); |
1504 | #endif |
1702 | #endif |
1505 | } |
1703 | } |
1506 | |
1704 | |
1507 | ev_free (anfds); anfdmax = 0; |
1705 | ev_free (anfds); anfds = 0; anfdmax = 0; |
1508 | |
1706 | |
1509 | /* have to use the microsoft-never-gets-it-right macro */ |
1707 | /* have to use the microsoft-never-gets-it-right macro */ |
1510 | array_free (rfeed, EMPTY); |
1708 | array_free (rfeed, EMPTY); |
1511 | array_free (fdchange, EMPTY); |
1709 | array_free (fdchange, EMPTY); |
1512 | array_free (timer, EMPTY); |
1710 | array_free (timer, EMPTY); |
… | |
… | |
1547 | |
1745 | |
1548 | if (ev_is_active (&pipe_w)) |
1746 | if (ev_is_active (&pipe_w)) |
1549 | { |
1747 | { |
1550 | /* this "locks" the handlers against writing to the pipe */ |
1748 | /* this "locks" the handlers against writing to the pipe */ |
1551 | /* while we modify the fd vars */ |
1749 | /* while we modify the fd vars */ |
1552 | gotsig = 1; |
1750 | sig_pending = 1; |
1553 | #if EV_ASYNC_ENABLE |
1751 | #if EV_ASYNC_ENABLE |
1554 | gotasync = 1; |
1752 | async_pending = 1; |
1555 | #endif |
1753 | #endif |
1556 | |
1754 | |
1557 | ev_ref (EV_A); |
1755 | ev_ref (EV_A); |
1558 | ev_io_stop (EV_A_ &pipe_w); |
1756 | ev_io_stop (EV_A_ &pipe_w); |
1559 | |
1757 | |
… | |
… | |
1562 | close (evfd); |
1760 | close (evfd); |
1563 | #endif |
1761 | #endif |
1564 | |
1762 | |
1565 | if (evpipe [0] >= 0) |
1763 | if (evpipe [0] >= 0) |
1566 | { |
1764 | { |
1567 | close (evpipe [0]); |
1765 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1568 | close (evpipe [1]); |
1766 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1569 | } |
1767 | } |
1570 | |
1768 | |
1571 | evpipe_init (EV_A); |
1769 | evpipe_init (EV_A); |
1572 | /* now iterate over everything, in case we missed something */ |
1770 | /* now iterate over everything, in case we missed something */ |
1573 | pipecb (EV_A_ &pipe_w, EV_READ); |
1771 | pipecb (EV_A_ &pipe_w, EV_READ); |
… | |
… | |
1579 | #if EV_MULTIPLICITY |
1777 | #if EV_MULTIPLICITY |
1580 | |
1778 | |
1581 | struct ev_loop * |
1779 | struct ev_loop * |
1582 | ev_loop_new (unsigned int flags) |
1780 | ev_loop_new (unsigned int flags) |
1583 | { |
1781 | { |
1584 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1782 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1585 | |
1783 | |
1586 | memset (loop, 0, sizeof (struct ev_loop)); |
1784 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1587 | |
|
|
1588 | loop_init (EV_A_ flags); |
1785 | loop_init (EV_A_ flags); |
1589 | |
1786 | |
1590 | if (ev_backend (EV_A)) |
1787 | if (ev_backend (EV_A)) |
1591 | return loop; |
1788 | return EV_A; |
1592 | |
1789 | |
1593 | return 0; |
1790 | return 0; |
1594 | } |
1791 | } |
1595 | |
1792 | |
1596 | void |
1793 | void |
… | |
… | |
1603 | void |
1800 | void |
1604 | ev_loop_fork (EV_P) |
1801 | ev_loop_fork (EV_P) |
1605 | { |
1802 | { |
1606 | postfork = 1; /* must be in line with ev_default_fork */ |
1803 | postfork = 1; /* must be in line with ev_default_fork */ |
1607 | } |
1804 | } |
|
|
1805 | #endif /* multiplicity */ |
1608 | |
1806 | |
1609 | #if EV_VERIFY |
1807 | #if EV_VERIFY |
1610 | static void noinline |
1808 | static void noinline |
1611 | verify_watcher (EV_P_ W w) |
1809 | verify_watcher (EV_P_ W w) |
1612 | { |
1810 | { |
… | |
… | |
1640 | verify_watcher (EV_A_ ws [cnt]); |
1838 | verify_watcher (EV_A_ ws [cnt]); |
1641 | } |
1839 | } |
1642 | } |
1840 | } |
1643 | #endif |
1841 | #endif |
1644 | |
1842 | |
|
|
1843 | #if EV_MINIMAL < 2 |
1645 | void |
1844 | void |
1646 | ev_loop_verify (EV_P) |
1845 | ev_loop_verify (EV_P) |
1647 | { |
1846 | { |
1648 | #if EV_VERIFY |
1847 | #if EV_VERIFY |
1649 | int i; |
1848 | int i; |
… | |
… | |
1698 | assert (checkmax >= checkcnt); |
1897 | assert (checkmax >= checkcnt); |
1699 | array_verify (EV_A_ (W *)checks, checkcnt); |
1898 | array_verify (EV_A_ (W *)checks, checkcnt); |
1700 | |
1899 | |
1701 | # if 0 |
1900 | # if 0 |
1702 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1901 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1703 | for (signum = signalmax; signum--; ) if (signals [signum].gotsig) |
1902 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
1704 | # endif |
|
|
1705 | #endif |
1903 | # endif |
|
|
1904 | #endif |
1706 | } |
1905 | } |
1707 | |
1906 | #endif |
1708 | #endif /* multiplicity */ |
|
|
1709 | |
1907 | |
1710 | #if EV_MULTIPLICITY |
1908 | #if EV_MULTIPLICITY |
1711 | struct ev_loop * |
1909 | struct ev_loop * |
1712 | ev_default_loop_init (unsigned int flags) |
1910 | ev_default_loop_init (unsigned int flags) |
1713 | #else |
1911 | #else |
… | |
… | |
1716 | #endif |
1914 | #endif |
1717 | { |
1915 | { |
1718 | if (!ev_default_loop_ptr) |
1916 | if (!ev_default_loop_ptr) |
1719 | { |
1917 | { |
1720 | #if EV_MULTIPLICITY |
1918 | #if EV_MULTIPLICITY |
1721 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1919 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
1722 | #else |
1920 | #else |
1723 | ev_default_loop_ptr = 1; |
1921 | ev_default_loop_ptr = 1; |
1724 | #endif |
1922 | #endif |
1725 | |
1923 | |
1726 | loop_init (EV_A_ flags); |
1924 | loop_init (EV_A_ flags); |
… | |
… | |
1743 | |
1941 | |
1744 | void |
1942 | void |
1745 | ev_default_destroy (void) |
1943 | ev_default_destroy (void) |
1746 | { |
1944 | { |
1747 | #if EV_MULTIPLICITY |
1945 | #if EV_MULTIPLICITY |
1748 | struct ev_loop *loop = ev_default_loop_ptr; |
1946 | EV_P = ev_default_loop_ptr; |
1749 | #endif |
1947 | #endif |
1750 | |
1948 | |
1751 | ev_default_loop_ptr = 0; |
1949 | ev_default_loop_ptr = 0; |
1752 | |
1950 | |
1753 | #ifndef _WIN32 |
1951 | #ifndef _WIN32 |
… | |
… | |
1760 | |
1958 | |
1761 | void |
1959 | void |
1762 | ev_default_fork (void) |
1960 | ev_default_fork (void) |
1763 | { |
1961 | { |
1764 | #if EV_MULTIPLICITY |
1962 | #if EV_MULTIPLICITY |
1765 | struct ev_loop *loop = ev_default_loop_ptr; |
1963 | EV_P = ev_default_loop_ptr; |
1766 | #endif |
1964 | #endif |
1767 | |
1965 | |
1768 | postfork = 1; /* must be in line with ev_loop_fork */ |
1966 | postfork = 1; /* must be in line with ev_loop_fork */ |
1769 | } |
1967 | } |
1770 | |
1968 | |
… | |
… | |
1774 | ev_invoke (EV_P_ void *w, int revents) |
1972 | ev_invoke (EV_P_ void *w, int revents) |
1775 | { |
1973 | { |
1776 | EV_CB_INVOKE ((W)w, revents); |
1974 | EV_CB_INVOKE ((W)w, revents); |
1777 | } |
1975 | } |
1778 | |
1976 | |
1779 | inline_speed void |
1977 | unsigned int |
1780 | call_pending (EV_P) |
1978 | ev_pending_count (EV_P) |
|
|
1979 | { |
|
|
1980 | int pri; |
|
|
1981 | unsigned int count = 0; |
|
|
1982 | |
|
|
1983 | for (pri = NUMPRI; pri--; ) |
|
|
1984 | count += pendingcnt [pri]; |
|
|
1985 | |
|
|
1986 | return count; |
|
|
1987 | } |
|
|
1988 | |
|
|
1989 | void noinline |
|
|
1990 | ev_invoke_pending (EV_P) |
1781 | { |
1991 | { |
1782 | int pri; |
1992 | int pri; |
1783 | |
1993 | |
1784 | for (pri = NUMPRI; pri--; ) |
1994 | for (pri = NUMPRI; pri--; ) |
1785 | while (pendingcnt [pri]) |
1995 | while (pendingcnt [pri]) |
… | |
… | |
1953 | ANHE_at_cache (*he); |
2163 | ANHE_at_cache (*he); |
1954 | } |
2164 | } |
1955 | } |
2165 | } |
1956 | |
2166 | |
1957 | /* fetch new monotonic and realtime times from the kernel */ |
2167 | /* fetch new monotonic and realtime times from the kernel */ |
1958 | /* also detetc if there was a timejump, and act accordingly */ |
2168 | /* also detect if there was a timejump, and act accordingly */ |
1959 | inline_speed void |
2169 | inline_speed void |
1960 | time_update (EV_P_ ev_tstamp max_block) |
2170 | time_update (EV_P_ ev_tstamp max_block) |
1961 | { |
2171 | { |
1962 | #if EV_USE_MONOTONIC |
2172 | #if EV_USE_MONOTONIC |
1963 | if (expect_true (have_monotonic)) |
2173 | if (expect_true (have_monotonic)) |
… | |
… | |
2020 | |
2230 | |
2021 | mn_now = ev_rt_now; |
2231 | mn_now = ev_rt_now; |
2022 | } |
2232 | } |
2023 | } |
2233 | } |
2024 | |
2234 | |
2025 | static int loop_done; |
|
|
2026 | |
|
|
2027 | void |
2235 | void |
2028 | ev_loop (EV_P_ int flags) |
2236 | ev_loop (EV_P_ int flags) |
2029 | { |
2237 | { |
|
|
2238 | #if EV_MINIMAL < 2 |
|
|
2239 | ++loop_depth; |
|
|
2240 | #endif |
|
|
2241 | |
|
|
2242 | assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); |
|
|
2243 | |
2030 | loop_done = EVUNLOOP_CANCEL; |
2244 | loop_done = EVUNLOOP_CANCEL; |
2031 | |
2245 | |
2032 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
2246 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
2033 | |
2247 | |
2034 | do |
2248 | do |
2035 | { |
2249 | { |
2036 | #if EV_VERIFY >= 2 |
2250 | #if EV_VERIFY >= 2 |
2037 | ev_loop_verify (EV_A); |
2251 | ev_loop_verify (EV_A); |
… | |
… | |
2050 | /* we might have forked, so queue fork handlers */ |
2264 | /* we might have forked, so queue fork handlers */ |
2051 | if (expect_false (postfork)) |
2265 | if (expect_false (postfork)) |
2052 | if (forkcnt) |
2266 | if (forkcnt) |
2053 | { |
2267 | { |
2054 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2268 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2055 | call_pending (EV_A); |
2269 | EV_INVOKE_PENDING; |
2056 | } |
2270 | } |
2057 | #endif |
2271 | #endif |
2058 | |
2272 | |
2059 | /* queue prepare watchers (and execute them) */ |
2273 | /* queue prepare watchers (and execute them) */ |
2060 | if (expect_false (preparecnt)) |
2274 | if (expect_false (preparecnt)) |
2061 | { |
2275 | { |
2062 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2276 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2063 | call_pending (EV_A); |
2277 | EV_INVOKE_PENDING; |
2064 | } |
2278 | } |
|
|
2279 | |
|
|
2280 | if (expect_false (loop_done)) |
|
|
2281 | break; |
2065 | |
2282 | |
2066 | /* we might have forked, so reify kernel state if necessary */ |
2283 | /* we might have forked, so reify kernel state if necessary */ |
2067 | if (expect_false (postfork)) |
2284 | if (expect_false (postfork)) |
2068 | loop_fork (EV_A); |
2285 | loop_fork (EV_A); |
2069 | |
2286 | |
… | |
… | |
2075 | ev_tstamp waittime = 0.; |
2292 | ev_tstamp waittime = 0.; |
2076 | ev_tstamp sleeptime = 0.; |
2293 | ev_tstamp sleeptime = 0.; |
2077 | |
2294 | |
2078 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2295 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2079 | { |
2296 | { |
|
|
2297 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2298 | ev_tstamp prev_mn_now = mn_now; |
|
|
2299 | |
2080 | /* update time to cancel out callback processing overhead */ |
2300 | /* update time to cancel out callback processing overhead */ |
2081 | time_update (EV_A_ 1e100); |
2301 | time_update (EV_A_ 1e100); |
2082 | |
2302 | |
2083 | waittime = MAX_BLOCKTIME; |
2303 | waittime = MAX_BLOCKTIME; |
2084 | |
2304 | |
… | |
… | |
2094 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
2314 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
2095 | if (waittime > to) waittime = to; |
2315 | if (waittime > to) waittime = to; |
2096 | } |
2316 | } |
2097 | #endif |
2317 | #endif |
2098 | |
2318 | |
|
|
2319 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
2099 | if (expect_false (waittime < timeout_blocktime)) |
2320 | if (expect_false (waittime < timeout_blocktime)) |
2100 | waittime = timeout_blocktime; |
2321 | waittime = timeout_blocktime; |
2101 | |
2322 | |
2102 | sleeptime = waittime - backend_fudge; |
2323 | /* extra check because io_blocktime is commonly 0 */ |
2103 | |
|
|
2104 | if (expect_true (sleeptime > io_blocktime)) |
2324 | if (expect_false (io_blocktime)) |
2105 | sleeptime = io_blocktime; |
|
|
2106 | |
|
|
2107 | if (sleeptime) |
|
|
2108 | { |
2325 | { |
|
|
2326 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
|
|
2327 | |
|
|
2328 | if (sleeptime > waittime - backend_fudge) |
|
|
2329 | sleeptime = waittime - backend_fudge; |
|
|
2330 | |
|
|
2331 | if (expect_true (sleeptime > 0.)) |
|
|
2332 | { |
2109 | ev_sleep (sleeptime); |
2333 | ev_sleep (sleeptime); |
2110 | waittime -= sleeptime; |
2334 | waittime -= sleeptime; |
|
|
2335 | } |
2111 | } |
2336 | } |
2112 | } |
2337 | } |
2113 | |
2338 | |
|
|
2339 | #if EV_MINIMAL < 2 |
2114 | ++loop_count; |
2340 | ++loop_count; |
|
|
2341 | #endif |
|
|
2342 | assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ |
2115 | backend_poll (EV_A_ waittime); |
2343 | backend_poll (EV_A_ waittime); |
|
|
2344 | assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ |
2116 | |
2345 | |
2117 | /* update ev_rt_now, do magic */ |
2346 | /* update ev_rt_now, do magic */ |
2118 | time_update (EV_A_ waittime + sleeptime); |
2347 | time_update (EV_A_ waittime + sleeptime); |
2119 | } |
2348 | } |
2120 | |
2349 | |
… | |
… | |
2131 | |
2360 | |
2132 | /* queue check watchers, to be executed first */ |
2361 | /* queue check watchers, to be executed first */ |
2133 | if (expect_false (checkcnt)) |
2362 | if (expect_false (checkcnt)) |
2134 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2363 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2135 | |
2364 | |
2136 | call_pending (EV_A); |
2365 | EV_INVOKE_PENDING; |
2137 | } |
2366 | } |
2138 | while (expect_true ( |
2367 | while (expect_true ( |
2139 | activecnt |
2368 | activecnt |
2140 | && !loop_done |
2369 | && !loop_done |
2141 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2370 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2142 | )); |
2371 | )); |
2143 | |
2372 | |
2144 | if (loop_done == EVUNLOOP_ONE) |
2373 | if (loop_done == EVUNLOOP_ONE) |
2145 | loop_done = EVUNLOOP_CANCEL; |
2374 | loop_done = EVUNLOOP_CANCEL; |
|
|
2375 | |
|
|
2376 | #if EV_MINIMAL < 2 |
|
|
2377 | --loop_depth; |
|
|
2378 | #endif |
2146 | } |
2379 | } |
2147 | |
2380 | |
2148 | void |
2381 | void |
2149 | ev_unloop (EV_P_ int how) |
2382 | ev_unloop (EV_P_ int how) |
2150 | { |
2383 | { |
… | |
… | |
2201 | inline_size void |
2434 | inline_size void |
2202 | wlist_del (WL *head, WL elem) |
2435 | wlist_del (WL *head, WL elem) |
2203 | { |
2436 | { |
2204 | while (*head) |
2437 | while (*head) |
2205 | { |
2438 | { |
2206 | if (*head == elem) |
2439 | if (expect_true (*head == elem)) |
2207 | { |
2440 | { |
2208 | *head = elem->next; |
2441 | *head = elem->next; |
2209 | return; |
2442 | break; |
2210 | } |
2443 | } |
2211 | |
2444 | |
2212 | head = &(*head)->next; |
2445 | head = &(*head)->next; |
2213 | } |
2446 | } |
2214 | } |
2447 | } |
… | |
… | |
2242 | } |
2475 | } |
2243 | |
2476 | |
2244 | inline_size void |
2477 | inline_size void |
2245 | pri_adjust (EV_P_ W w) |
2478 | pri_adjust (EV_P_ W w) |
2246 | { |
2479 | { |
2247 | int pri = w->priority; |
2480 | int pri = ev_priority (w); |
2248 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2481 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2249 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2482 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2250 | w->priority = pri; |
2483 | ev_set_priority (w, pri); |
2251 | } |
2484 | } |
2252 | |
2485 | |
2253 | inline_speed void |
2486 | inline_speed void |
2254 | ev_start (EV_P_ W w, int active) |
2487 | ev_start (EV_P_ W w, int active) |
2255 | { |
2488 | { |
… | |
… | |
2282 | |
2515 | |
2283 | ev_start (EV_A_ (W)w, 1); |
2516 | ev_start (EV_A_ (W)w, 1); |
2284 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2517 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2285 | wlist_add (&anfds[fd].head, (WL)w); |
2518 | wlist_add (&anfds[fd].head, (WL)w); |
2286 | |
2519 | |
2287 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | 1); |
2520 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
2288 | w->events &= ~EV__IOFDSET; |
2521 | w->events &= ~EV__IOFDSET; |
2289 | |
2522 | |
2290 | EV_FREQUENT_CHECK; |
2523 | EV_FREQUENT_CHECK; |
2291 | } |
2524 | } |
2292 | |
2525 | |
… | |
… | |
2386 | } |
2619 | } |
2387 | |
2620 | |
2388 | EV_FREQUENT_CHECK; |
2621 | EV_FREQUENT_CHECK; |
2389 | } |
2622 | } |
2390 | |
2623 | |
|
|
2624 | ev_tstamp |
|
|
2625 | ev_timer_remaining (EV_P_ ev_timer *w) |
|
|
2626 | { |
|
|
2627 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
|
|
2628 | } |
|
|
2629 | |
2391 | #if EV_PERIODIC_ENABLE |
2630 | #if EV_PERIODIC_ENABLE |
2392 | void noinline |
2631 | void noinline |
2393 | ev_periodic_start (EV_P_ ev_periodic *w) |
2632 | ev_periodic_start (EV_P_ ev_periodic *w) |
2394 | { |
2633 | { |
2395 | if (expect_false (ev_is_active (w))) |
2634 | if (expect_false (ev_is_active (w))) |
… | |
… | |
2462 | #endif |
2701 | #endif |
2463 | |
2702 | |
2464 | void noinline |
2703 | void noinline |
2465 | ev_signal_start (EV_P_ ev_signal *w) |
2704 | ev_signal_start (EV_P_ ev_signal *w) |
2466 | { |
2705 | { |
2467 | #if EV_MULTIPLICITY |
|
|
2468 | assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
2469 | #endif |
|
|
2470 | if (expect_false (ev_is_active (w))) |
2706 | if (expect_false (ev_is_active (w))) |
2471 | return; |
2707 | return; |
2472 | |
2708 | |
2473 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); |
2709 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
2474 | |
2710 | |
2475 | evpipe_init (EV_A); |
2711 | #if EV_MULTIPLICITY |
|
|
2712 | assert (("libev: a signal must not be attached to two different loops", |
|
|
2713 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
2476 | |
2714 | |
2477 | EV_FREQUENT_CHECK; |
2715 | signals [w->signum - 1].loop = EV_A; |
|
|
2716 | #endif |
2478 | |
2717 | |
|
|
2718 | EV_FREQUENT_CHECK; |
|
|
2719 | |
|
|
2720 | #if EV_USE_SIGNALFD |
|
|
2721 | if (sigfd == -2) |
2479 | { |
2722 | { |
2480 | #ifndef _WIN32 |
2723 | sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC); |
2481 | sigset_t full, prev; |
2724 | if (sigfd < 0 && errno == EINVAL) |
2482 | sigfillset (&full); |
2725 | sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */ |
2483 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2484 | #endif |
|
|
2485 | |
2726 | |
2486 | array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); |
2727 | if (sigfd >= 0) |
|
|
2728 | { |
|
|
2729 | fd_intern (sigfd); /* doing it twice will not hurt */ |
2487 | |
2730 | |
2488 | #ifndef _WIN32 |
2731 | sigemptyset (&sigfd_set); |
2489 | sigprocmask (SIG_SETMASK, &prev, 0); |
2732 | |
2490 | #endif |
2733 | ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ); |
|
|
2734 | ev_set_priority (&sigfd_w, EV_MAXPRI); |
|
|
2735 | ev_io_start (EV_A_ &sigfd_w); |
|
|
2736 | ev_unref (EV_A); /* signalfd watcher should not keep loop alive */ |
|
|
2737 | } |
2491 | } |
2738 | } |
|
|
2739 | |
|
|
2740 | if (sigfd >= 0) |
|
|
2741 | { |
|
|
2742 | /* TODO: check .head */ |
|
|
2743 | sigaddset (&sigfd_set, w->signum); |
|
|
2744 | sigprocmask (SIG_BLOCK, &sigfd_set, 0); |
|
|
2745 | |
|
|
2746 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2747 | } |
|
|
2748 | #endif |
2492 | |
2749 | |
2493 | ev_start (EV_A_ (W)w, 1); |
2750 | ev_start (EV_A_ (W)w, 1); |
2494 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2751 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2495 | |
2752 | |
2496 | if (!((WL)w)->next) |
2753 | if (!((WL)w)->next) |
|
|
2754 | # if EV_USE_SIGNALFD |
|
|
2755 | if (sigfd < 0) /*TODO*/ |
|
|
2756 | # endif |
2497 | { |
2757 | { |
2498 | #if _WIN32 |
2758 | # ifdef _WIN32 |
|
|
2759 | evpipe_init (EV_A); |
|
|
2760 | |
2499 | signal (w->signum, ev_sighandler); |
2761 | signal (w->signum, ev_sighandler); |
2500 | #else |
2762 | # else |
2501 | struct sigaction sa; |
2763 | struct sigaction sa; |
|
|
2764 | |
|
|
2765 | evpipe_init (EV_A); |
|
|
2766 | |
2502 | sa.sa_handler = ev_sighandler; |
2767 | sa.sa_handler = ev_sighandler; |
2503 | sigfillset (&sa.sa_mask); |
2768 | sigfillset (&sa.sa_mask); |
2504 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2769 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2505 | sigaction (w->signum, &sa, 0); |
2770 | sigaction (w->signum, &sa, 0); |
|
|
2771 | |
|
|
2772 | sigemptyset (&sa.sa_mask); |
|
|
2773 | sigaddset (&sa.sa_mask, w->signum); |
|
|
2774 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
2506 | #endif |
2775 | #endif |
2507 | } |
2776 | } |
2508 | |
2777 | |
2509 | EV_FREQUENT_CHECK; |
2778 | EV_FREQUENT_CHECK; |
2510 | } |
2779 | } |
2511 | |
2780 | |
2512 | void noinline |
2781 | void noinline |
… | |
… | |
2520 | |
2789 | |
2521 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2790 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2522 | ev_stop (EV_A_ (W)w); |
2791 | ev_stop (EV_A_ (W)w); |
2523 | |
2792 | |
2524 | if (!signals [w->signum - 1].head) |
2793 | if (!signals [w->signum - 1].head) |
|
|
2794 | { |
|
|
2795 | #if EV_MULTIPLICITY |
|
|
2796 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
|
|
2797 | #endif |
|
|
2798 | #if EV_USE_SIGNALFD |
|
|
2799 | if (sigfd >= 0) |
|
|
2800 | { |
|
|
2801 | sigset_t ss; |
|
|
2802 | |
|
|
2803 | sigemptyset (&ss); |
|
|
2804 | sigaddset (&ss, w->signum); |
|
|
2805 | sigdelset (&sigfd_set, w->signum); |
|
|
2806 | |
|
|
2807 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2808 | sigprocmask (SIG_UNBLOCK, &ss, 0); |
|
|
2809 | } |
|
|
2810 | else |
|
|
2811 | #endif |
2525 | signal (w->signum, SIG_DFL); |
2812 | signal (w->signum, SIG_DFL); |
|
|
2813 | } |
2526 | |
2814 | |
2527 | EV_FREQUENT_CHECK; |
2815 | EV_FREQUENT_CHECK; |
2528 | } |
2816 | } |
2529 | |
2817 | |
2530 | void |
2818 | void |
… | |
… | |
2578 | static void noinline |
2866 | static void noinline |
2579 | infy_add (EV_P_ ev_stat *w) |
2867 | infy_add (EV_P_ ev_stat *w) |
2580 | { |
2868 | { |
2581 | w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); |
2869 | w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); |
2582 | |
2870 | |
2583 | if (w->wd < 0) |
2871 | if (w->wd >= 0) |
|
|
2872 | { |
|
|
2873 | struct statfs sfs; |
|
|
2874 | |
|
|
2875 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
2876 | /* unless the filesystem is known to be local, we therefore still poll */ |
|
|
2877 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2878 | |
|
|
2879 | if (!fs_2625) |
|
|
2880 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
2881 | else if (!statfs (w->path, &sfs) |
|
|
2882 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
2883 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2884 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2885 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2886 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2887 | || sfs.f_type == 0x58465342 /* xfs */)) |
|
|
2888 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
|
|
2889 | else |
|
|
2890 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
2584 | { |
2891 | } |
|
|
2892 | else |
|
|
2893 | { |
|
|
2894 | /* can't use inotify, continue to stat */ |
2585 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2895 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2586 | ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
|
|
2587 | |
2896 | |
2588 | /* monitor some parent directory for speedup hints */ |
2897 | /* if path is not there, monitor some parent directory for speedup hints */ |
2589 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2898 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2590 | /* but an efficiency issue only */ |
2899 | /* but an efficiency issue only */ |
2591 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2900 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2592 | { |
2901 | { |
2593 | char path [4096]; |
2902 | char path [4096]; |
… | |
… | |
2609 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2918 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2610 | } |
2919 | } |
2611 | } |
2920 | } |
2612 | |
2921 | |
2613 | if (w->wd >= 0) |
2922 | if (w->wd >= 0) |
2614 | { |
|
|
2615 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2923 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2616 | |
2924 | |
2617 | /* now local changes will be tracked by inotify, but remote changes won't */ |
2925 | /* now re-arm timer, if required */ |
2618 | /* unless the filesystem it known to be local, we therefore still poll */ |
2926 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2619 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2620 | struct statfs sfs; |
|
|
2621 | |
|
|
2622 | if (fs_2625 && !statfs (w->path, &sfs)) |
|
|
2623 | if (sfs.f_type == 0x1373 /* devfs */ |
|
|
2624 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2625 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2626 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2627 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2628 | || sfs.f_type == 0x58465342 /* xfs */) |
|
|
2629 | return; |
|
|
2630 | |
|
|
2631 | w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2632 | ev_timer_again (EV_A_ &w->timer); |
2927 | ev_timer_again (EV_A_ &w->timer); |
2633 | } |
2928 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
2634 | } |
2929 | } |
2635 | |
2930 | |
2636 | static void noinline |
2931 | static void noinline |
2637 | infy_del (EV_P_ ev_stat *w) |
2932 | infy_del (EV_P_ ev_stat *w) |
2638 | { |
2933 | { |
… | |
… | |
2714 | return; |
3009 | return; |
2715 | |
3010 | |
2716 | fs_2625 = 1; |
3011 | fs_2625 = 1; |
2717 | } |
3012 | } |
2718 | |
3013 | |
|
|
3014 | inline_size int |
|
|
3015 | infy_newfd (void) |
|
|
3016 | { |
|
|
3017 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
|
|
3018 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
|
|
3019 | if (fd >= 0) |
|
|
3020 | return fd; |
|
|
3021 | #endif |
|
|
3022 | return inotify_init (); |
|
|
3023 | } |
|
|
3024 | |
2719 | inline_size void |
3025 | inline_size void |
2720 | infy_init (EV_P) |
3026 | infy_init (EV_P) |
2721 | { |
3027 | { |
2722 | if (fs_fd != -2) |
3028 | if (fs_fd != -2) |
2723 | return; |
3029 | return; |
2724 | |
3030 | |
2725 | fs_fd = -1; |
3031 | fs_fd = -1; |
2726 | |
3032 | |
2727 | check_2625 (EV_A); |
3033 | check_2625 (EV_A); |
2728 | |
3034 | |
2729 | fs_fd = inotify_init (); |
3035 | fs_fd = infy_newfd (); |
2730 | |
3036 | |
2731 | if (fs_fd >= 0) |
3037 | if (fs_fd >= 0) |
2732 | { |
3038 | { |
|
|
3039 | fd_intern (fs_fd); |
2733 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
3040 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
2734 | ev_set_priority (&fs_w, EV_MAXPRI); |
3041 | ev_set_priority (&fs_w, EV_MAXPRI); |
2735 | ev_io_start (EV_A_ &fs_w); |
3042 | ev_io_start (EV_A_ &fs_w); |
|
|
3043 | ev_unref (EV_A); |
2736 | } |
3044 | } |
2737 | } |
3045 | } |
2738 | |
3046 | |
2739 | inline_size void |
3047 | inline_size void |
2740 | infy_fork (EV_P) |
3048 | infy_fork (EV_P) |
… | |
… | |
2742 | int slot; |
3050 | int slot; |
2743 | |
3051 | |
2744 | if (fs_fd < 0) |
3052 | if (fs_fd < 0) |
2745 | return; |
3053 | return; |
2746 | |
3054 | |
|
|
3055 | ev_ref (EV_A); |
|
|
3056 | ev_io_stop (EV_A_ &fs_w); |
2747 | close (fs_fd); |
3057 | close (fs_fd); |
2748 | fs_fd = inotify_init (); |
3058 | fs_fd = infy_newfd (); |
|
|
3059 | |
|
|
3060 | if (fs_fd >= 0) |
|
|
3061 | { |
|
|
3062 | fd_intern (fs_fd); |
|
|
3063 | ev_io_set (&fs_w, fs_fd, EV_READ); |
|
|
3064 | ev_io_start (EV_A_ &fs_w); |
|
|
3065 | ev_unref (EV_A); |
|
|
3066 | } |
2749 | |
3067 | |
2750 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3068 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2751 | { |
3069 | { |
2752 | WL w_ = fs_hash [slot].head; |
3070 | WL w_ = fs_hash [slot].head; |
2753 | fs_hash [slot].head = 0; |
3071 | fs_hash [slot].head = 0; |
… | |
… | |
2760 | w->wd = -1; |
3078 | w->wd = -1; |
2761 | |
3079 | |
2762 | if (fs_fd >= 0) |
3080 | if (fs_fd >= 0) |
2763 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3081 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2764 | else |
3082 | else |
|
|
3083 | { |
|
|
3084 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3085 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2765 | ev_timer_again (EV_A_ &w->timer); |
3086 | ev_timer_again (EV_A_ &w->timer); |
|
|
3087 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
|
|
3088 | } |
2766 | } |
3089 | } |
2767 | } |
3090 | } |
2768 | } |
3091 | } |
2769 | |
3092 | |
2770 | #endif |
3093 | #endif |
… | |
… | |
2787 | static void noinline |
3110 | static void noinline |
2788 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3111 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
2789 | { |
3112 | { |
2790 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3113 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
2791 | |
3114 | |
2792 | /* we copy this here each the time so that */ |
3115 | ev_statdata prev = w->attr; |
2793 | /* prev has the old value when the callback gets invoked */ |
|
|
2794 | w->prev = w->attr; |
|
|
2795 | ev_stat_stat (EV_A_ w); |
3116 | ev_stat_stat (EV_A_ w); |
2796 | |
3117 | |
2797 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
3118 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
2798 | if ( |
3119 | if ( |
2799 | w->prev.st_dev != w->attr.st_dev |
3120 | prev.st_dev != w->attr.st_dev |
2800 | || w->prev.st_ino != w->attr.st_ino |
3121 | || prev.st_ino != w->attr.st_ino |
2801 | || w->prev.st_mode != w->attr.st_mode |
3122 | || prev.st_mode != w->attr.st_mode |
2802 | || w->prev.st_nlink != w->attr.st_nlink |
3123 | || prev.st_nlink != w->attr.st_nlink |
2803 | || w->prev.st_uid != w->attr.st_uid |
3124 | || prev.st_uid != w->attr.st_uid |
2804 | || w->prev.st_gid != w->attr.st_gid |
3125 | || prev.st_gid != w->attr.st_gid |
2805 | || w->prev.st_rdev != w->attr.st_rdev |
3126 | || prev.st_rdev != w->attr.st_rdev |
2806 | || w->prev.st_size != w->attr.st_size |
3127 | || prev.st_size != w->attr.st_size |
2807 | || w->prev.st_atime != w->attr.st_atime |
3128 | || prev.st_atime != w->attr.st_atime |
2808 | || w->prev.st_mtime != w->attr.st_mtime |
3129 | || prev.st_mtime != w->attr.st_mtime |
2809 | || w->prev.st_ctime != w->attr.st_ctime |
3130 | || prev.st_ctime != w->attr.st_ctime |
2810 | ) { |
3131 | ) { |
|
|
3132 | /* we only update w->prev on actual differences */ |
|
|
3133 | /* in case we test more often than invoke the callback, */ |
|
|
3134 | /* to ensure that prev is always different to attr */ |
|
|
3135 | w->prev = prev; |
|
|
3136 | |
2811 | #if EV_USE_INOTIFY |
3137 | #if EV_USE_INOTIFY |
2812 | if (fs_fd >= 0) |
3138 | if (fs_fd >= 0) |
2813 | { |
3139 | { |
2814 | infy_del (EV_A_ w); |
3140 | infy_del (EV_A_ w); |
2815 | infy_add (EV_A_ w); |
3141 | infy_add (EV_A_ w); |
… | |
… | |
2840 | |
3166 | |
2841 | if (fs_fd >= 0) |
3167 | if (fs_fd >= 0) |
2842 | infy_add (EV_A_ w); |
3168 | infy_add (EV_A_ w); |
2843 | else |
3169 | else |
2844 | #endif |
3170 | #endif |
|
|
3171 | { |
2845 | ev_timer_again (EV_A_ &w->timer); |
3172 | ev_timer_again (EV_A_ &w->timer); |
|
|
3173 | ev_unref (EV_A); |
|
|
3174 | } |
2846 | |
3175 | |
2847 | ev_start (EV_A_ (W)w, 1); |
3176 | ev_start (EV_A_ (W)w, 1); |
2848 | |
3177 | |
2849 | EV_FREQUENT_CHECK; |
3178 | EV_FREQUENT_CHECK; |
2850 | } |
3179 | } |
… | |
… | |
2859 | EV_FREQUENT_CHECK; |
3188 | EV_FREQUENT_CHECK; |
2860 | |
3189 | |
2861 | #if EV_USE_INOTIFY |
3190 | #if EV_USE_INOTIFY |
2862 | infy_del (EV_A_ w); |
3191 | infy_del (EV_A_ w); |
2863 | #endif |
3192 | #endif |
|
|
3193 | |
|
|
3194 | if (ev_is_active (&w->timer)) |
|
|
3195 | { |
|
|
3196 | ev_ref (EV_A); |
2864 | ev_timer_stop (EV_A_ &w->timer); |
3197 | ev_timer_stop (EV_A_ &w->timer); |
|
|
3198 | } |
2865 | |
3199 | |
2866 | ev_stop (EV_A_ (W)w); |
3200 | ev_stop (EV_A_ (W)w); |
2867 | |
3201 | |
2868 | EV_FREQUENT_CHECK; |
3202 | EV_FREQUENT_CHECK; |
2869 | } |
3203 | } |
… | |
… | |
3010 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3344 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3011 | { |
3345 | { |
3012 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
3346 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
3013 | |
3347 | |
3014 | { |
3348 | { |
3015 | struct ev_loop *loop = w->other; |
3349 | EV_P = w->other; |
3016 | |
3350 | |
3017 | while (fdchangecnt) |
3351 | while (fdchangecnt) |
3018 | { |
3352 | { |
3019 | fd_reify (EV_A); |
3353 | fd_reify (EV_A); |
3020 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3354 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
… | |
… | |
3028 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
3362 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
3029 | |
3363 | |
3030 | ev_embed_stop (EV_A_ w); |
3364 | ev_embed_stop (EV_A_ w); |
3031 | |
3365 | |
3032 | { |
3366 | { |
3033 | struct ev_loop *loop = w->other; |
3367 | EV_P = w->other; |
3034 | |
3368 | |
3035 | ev_loop_fork (EV_A); |
3369 | ev_loop_fork (EV_A); |
3036 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3370 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3037 | } |
3371 | } |
3038 | |
3372 | |
… | |
… | |
3052 | { |
3386 | { |
3053 | if (expect_false (ev_is_active (w))) |
3387 | if (expect_false (ev_is_active (w))) |
3054 | return; |
3388 | return; |
3055 | |
3389 | |
3056 | { |
3390 | { |
3057 | struct ev_loop *loop = w->other; |
3391 | EV_P = w->other; |
3058 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3392 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3059 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3393 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3060 | } |
3394 | } |
3061 | |
3395 | |
3062 | EV_FREQUENT_CHECK; |
3396 | EV_FREQUENT_CHECK; |
… | |
… | |
3174 | |
3508 | |
3175 | void |
3509 | void |
3176 | ev_async_send (EV_P_ ev_async *w) |
3510 | ev_async_send (EV_P_ ev_async *w) |
3177 | { |
3511 | { |
3178 | w->sent = 1; |
3512 | w->sent = 1; |
3179 | evpipe_write (EV_A_ &gotasync); |
3513 | evpipe_write (EV_A_ &async_pending); |
3180 | } |
3514 | } |
3181 | #endif |
3515 | #endif |
3182 | |
3516 | |
3183 | /*****************************************************************************/ |
3517 | /*****************************************************************************/ |
3184 | |
3518 | |
… | |
… | |
3333 | if (types & EV_CHECK) |
3667 | if (types & EV_CHECK) |
3334 | for (i = checkcnt; i--; ) |
3668 | for (i = checkcnt; i--; ) |
3335 | cb (EV_A_ EV_CHECK, checks [i]); |
3669 | cb (EV_A_ EV_CHECK, checks [i]); |
3336 | |
3670 | |
3337 | if (types & EV_SIGNAL) |
3671 | if (types & EV_SIGNAL) |
3338 | for (i = 0; i < signalmax; ++i) |
3672 | for (i = 0; i < EV_NSIG - 1; ++i) |
3339 | for (wl = signals [i].head; wl; ) |
3673 | for (wl = signals [i].head; wl; ) |
3340 | { |
3674 | { |
3341 | wn = wl->next; |
3675 | wn = wl->next; |
3342 | cb (EV_A_ EV_SIGNAL, wl); |
3676 | cb (EV_A_ EV_SIGNAL, wl); |
3343 | wl = wn; |
3677 | wl = wn; |