… | |
… | |
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 |
… | |
… | |
266 | # else |
301 | # else |
267 | # define EV_USE_EVENTFD 0 |
302 | # define EV_USE_EVENTFD 0 |
268 | # endif |
303 | # endif |
269 | #endif |
304 | #endif |
270 | |
305 | |
|
|
306 | #ifndef EV_USE_SIGNALFD |
|
|
307 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 9)) |
|
|
308 | # define EV_USE_SIGNALFD 1 |
|
|
309 | # else |
|
|
310 | # define EV_USE_SIGNALFD 0 |
|
|
311 | # endif |
|
|
312 | #endif |
|
|
313 | |
271 | #if 0 /* debugging */ |
314 | #if 0 /* debugging */ |
272 | # define EV_VERIFY 3 |
315 | # define EV_VERIFY 3 |
273 | # define EV_USE_4HEAP 1 |
316 | # define EV_USE_4HEAP 1 |
274 | # define EV_HEAP_CACHE_AT 1 |
317 | # define EV_HEAP_CACHE_AT 1 |
275 | #endif |
318 | #endif |
… | |
… | |
282 | # define EV_USE_4HEAP !EV_MINIMAL |
325 | # define EV_USE_4HEAP !EV_MINIMAL |
283 | #endif |
326 | #endif |
284 | |
327 | |
285 | #ifndef EV_HEAP_CACHE_AT |
328 | #ifndef EV_HEAP_CACHE_AT |
286 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
329 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
287 | #endif |
|
|
288 | |
|
|
289 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
|
|
290 | |
|
|
291 | #ifndef CLOCK_MONOTONIC |
|
|
292 | # undef EV_USE_MONOTONIC |
|
|
293 | # define EV_USE_MONOTONIC 0 |
|
|
294 | #endif |
|
|
295 | |
|
|
296 | #ifndef CLOCK_REALTIME |
|
|
297 | # undef EV_USE_REALTIME |
|
|
298 | # define EV_USE_REALTIME 0 |
|
|
299 | #endif |
|
|
300 | |
|
|
301 | #if !EV_STAT_ENABLE |
|
|
302 | # undef EV_USE_INOTIFY |
|
|
303 | # define EV_USE_INOTIFY 0 |
|
|
304 | #endif |
|
|
305 | |
|
|
306 | #if !EV_USE_NANOSLEEP |
|
|
307 | # ifndef _WIN32 |
|
|
308 | # include <sys/select.h> |
|
|
309 | # endif |
|
|
310 | #endif |
|
|
311 | |
|
|
312 | #if EV_USE_INOTIFY |
|
|
313 | # include <sys/utsname.h> |
|
|
314 | # include <sys/statfs.h> |
|
|
315 | # include <sys/inotify.h> |
|
|
316 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
|
|
317 | # ifndef IN_DONT_FOLLOW |
|
|
318 | # undef EV_USE_INOTIFY |
|
|
319 | # define EV_USE_INOTIFY 0 |
|
|
320 | # endif |
|
|
321 | #endif |
|
|
322 | |
|
|
323 | #if EV_SELECT_IS_WINSOCKET |
|
|
324 | # include <winsock.h> |
|
|
325 | #endif |
330 | #endif |
326 | |
331 | |
327 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
332 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
328 | /* which makes programs even slower. might work on other unices, too. */ |
333 | /* which makes programs even slower. might work on other unices, too. */ |
329 | #if EV_USE_CLOCK_SYSCALL |
334 | #if EV_USE_CLOCK_SYSCALL |
… | |
… | |
336 | # undef EV_USE_CLOCK_SYSCALL |
341 | # undef EV_USE_CLOCK_SYSCALL |
337 | # define EV_USE_CLOCK_SYSCALL 0 |
342 | # define EV_USE_CLOCK_SYSCALL 0 |
338 | # endif |
343 | # endif |
339 | #endif |
344 | #endif |
340 | |
345 | |
|
|
346 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
|
|
347 | |
|
|
348 | #ifndef CLOCK_MONOTONIC |
|
|
349 | # undef EV_USE_MONOTONIC |
|
|
350 | # define EV_USE_MONOTONIC 0 |
|
|
351 | #endif |
|
|
352 | |
|
|
353 | #ifndef CLOCK_REALTIME |
|
|
354 | # undef EV_USE_REALTIME |
|
|
355 | # define EV_USE_REALTIME 0 |
|
|
356 | #endif |
|
|
357 | |
|
|
358 | #if !EV_STAT_ENABLE |
|
|
359 | # undef EV_USE_INOTIFY |
|
|
360 | # define EV_USE_INOTIFY 0 |
|
|
361 | #endif |
|
|
362 | |
|
|
363 | #if !EV_USE_NANOSLEEP |
|
|
364 | # ifndef _WIN32 |
|
|
365 | # include <sys/select.h> |
|
|
366 | # endif |
|
|
367 | #endif |
|
|
368 | |
|
|
369 | #if EV_USE_INOTIFY |
|
|
370 | # include <sys/utsname.h> |
|
|
371 | # include <sys/statfs.h> |
|
|
372 | # include <sys/inotify.h> |
|
|
373 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
|
|
374 | # ifndef IN_DONT_FOLLOW |
|
|
375 | # undef EV_USE_INOTIFY |
|
|
376 | # define EV_USE_INOTIFY 0 |
|
|
377 | # endif |
|
|
378 | #endif |
|
|
379 | |
|
|
380 | #if EV_SELECT_IS_WINSOCKET |
|
|
381 | # include <winsock.h> |
|
|
382 | #endif |
|
|
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 | # define EFD_CLOEXEC O_CLOEXEC |
|
|
392 | # endif |
344 | # ifdef __cplusplus |
393 | # ifdef __cplusplus |
345 | extern "C" { |
394 | extern "C" { |
346 | # endif |
395 | # endif |
347 | int eventfd (unsigned int initval, int flags); |
396 | int eventfd (unsigned int initval, int flags); |
348 | # ifdef __cplusplus |
397 | # ifdef __cplusplus |
349 | } |
398 | } |
350 | # endif |
399 | # endif |
|
|
400 | #endif |
|
|
401 | |
|
|
402 | #if EV_USE_SIGNALFD |
|
|
403 | # include <sys/signalfd.h> |
351 | #endif |
404 | #endif |
352 | |
405 | |
353 | /**/ |
406 | /**/ |
354 | |
407 | |
355 | #if EV_VERIFY >= 3 |
408 | #if EV_VERIFY >= 3 |
… | |
… | |
391 | # define inline_speed static noinline |
444 | # define inline_speed static noinline |
392 | #else |
445 | #else |
393 | # define inline_speed static inline |
446 | # define inline_speed static inline |
394 | #endif |
447 | #endif |
395 | |
448 | |
396 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
449 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
450 | |
|
|
451 | #if EV_MINPRI == EV_MAXPRI |
|
|
452 | # define ABSPRI(w) (((W)w), 0) |
|
|
453 | #else |
397 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
454 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
|
|
455 | #endif |
398 | |
456 | |
399 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
457 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
400 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
458 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
401 | |
459 | |
402 | typedef ev_watcher *W; |
460 | typedef ev_watcher *W; |
… | |
… | |
485 | #define ev_malloc(size) ev_realloc (0, (size)) |
543 | #define ev_malloc(size) ev_realloc (0, (size)) |
486 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
544 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
487 | |
545 | |
488 | /*****************************************************************************/ |
546 | /*****************************************************************************/ |
489 | |
547 | |
|
|
548 | /* set in reify when reification needed */ |
|
|
549 | #define EV_ANFD_REIFY 1 |
|
|
550 | |
490 | /* file descriptor info structure */ |
551 | /* file descriptor info structure */ |
491 | typedef struct |
552 | typedef struct |
492 | { |
553 | { |
493 | WL head; |
554 | WL head; |
494 | unsigned char events; /* the events watched for */ |
555 | unsigned char events; /* the events watched for */ |
495 | unsigned char reify; /* flag set when this ANFD needs reification */ |
556 | 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 */ |
557 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
497 | unsigned char unused; |
558 | unsigned char unused; |
498 | #if EV_USE_EPOLL |
559 | #if EV_USE_EPOLL |
499 | unsigned int egen; /* generation counter to counter epoll bugs */ |
560 | unsigned int egen; /* generation counter to counter epoll bugs */ |
500 | #endif |
561 | #endif |
… | |
… | |
562 | |
623 | |
563 | static int ev_default_loop_ptr; |
624 | static int ev_default_loop_ptr; |
564 | |
625 | |
565 | #endif |
626 | #endif |
566 | |
627 | |
|
|
628 | #if EV_MINIMAL < 2 |
|
|
629 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
|
|
630 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
|
|
631 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
|
|
632 | #else |
|
|
633 | # define EV_RELEASE_CB (void)0 |
|
|
634 | # define EV_ACQUIRE_CB (void)0 |
|
|
635 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
|
|
636 | #endif |
|
|
637 | |
|
|
638 | #define EVUNLOOP_RECURSE 0x80 |
|
|
639 | |
567 | /*****************************************************************************/ |
640 | /*****************************************************************************/ |
568 | |
641 | |
|
|
642 | #ifndef EV_HAVE_EV_TIME |
569 | ev_tstamp |
643 | ev_tstamp |
570 | ev_time (void) |
644 | ev_time (void) |
571 | { |
645 | { |
572 | #if EV_USE_REALTIME |
646 | #if EV_USE_REALTIME |
573 | if (expect_true (have_realtime)) |
647 | if (expect_true (have_realtime)) |
… | |
… | |
580 | |
654 | |
581 | struct timeval tv; |
655 | struct timeval tv; |
582 | gettimeofday (&tv, 0); |
656 | gettimeofday (&tv, 0); |
583 | return tv.tv_sec + tv.tv_usec * 1e-6; |
657 | return tv.tv_sec + tv.tv_usec * 1e-6; |
584 | } |
658 | } |
|
|
659 | #endif |
585 | |
660 | |
586 | inline_size ev_tstamp |
661 | inline_size ev_tstamp |
587 | get_clock (void) |
662 | get_clock (void) |
588 | { |
663 | { |
589 | #if EV_USE_MONOTONIC |
664 | #if EV_USE_MONOTONIC |
… | |
… | |
625 | |
700 | |
626 | tv.tv_sec = (time_t)delay; |
701 | tv.tv_sec = (time_t)delay; |
627 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
702 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
628 | |
703 | |
629 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
704 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
630 | /* somehting nto guaranteed by newer posix versions, but guaranteed */ |
705 | /* something not guaranteed by newer posix versions, but guaranteed */ |
631 | /* by older ones */ |
706 | /* by older ones */ |
632 | select (0, 0, 0, 0, &tv); |
707 | select (0, 0, 0, 0, &tv); |
633 | #endif |
708 | #endif |
634 | } |
709 | } |
635 | } |
710 | } |
… | |
… | |
743 | } |
818 | } |
744 | |
819 | |
745 | /*****************************************************************************/ |
820 | /*****************************************************************************/ |
746 | |
821 | |
747 | inline_speed void |
822 | inline_speed void |
748 | fd_event (EV_P_ int fd, int revents) |
823 | fd_event_nc (EV_P_ int fd, int revents) |
749 | { |
824 | { |
750 | ANFD *anfd = anfds + fd; |
825 | ANFD *anfd = anfds + fd; |
751 | ev_io *w; |
826 | ev_io *w; |
752 | |
827 | |
753 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
828 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
757 | if (ev) |
832 | if (ev) |
758 | ev_feed_event (EV_A_ (W)w, ev); |
833 | ev_feed_event (EV_A_ (W)w, ev); |
759 | } |
834 | } |
760 | } |
835 | } |
761 | |
836 | |
|
|
837 | /* do not submit kernel events for fds that have reify set */ |
|
|
838 | /* because that means they changed while we were polling for new events */ |
|
|
839 | inline_speed void |
|
|
840 | fd_event (EV_P_ int fd, int revents) |
|
|
841 | { |
|
|
842 | ANFD *anfd = anfds + fd; |
|
|
843 | |
|
|
844 | if (expect_true (!anfd->reify)) |
|
|
845 | fd_event_nc (EV_A_ fd, revents); |
|
|
846 | } |
|
|
847 | |
762 | void |
848 | void |
763 | ev_feed_fd_event (EV_P_ int fd, int revents) |
849 | ev_feed_fd_event (EV_P_ int fd, int revents) |
764 | { |
850 | { |
765 | if (fd >= 0 && fd < anfdmax) |
851 | if (fd >= 0 && fd < anfdmax) |
766 | fd_event (EV_A_ fd, revents); |
852 | fd_event_nc (EV_A_ fd, revents); |
767 | } |
853 | } |
768 | |
854 | |
769 | /* make sure the external fd watch events are in-sync */ |
855 | /* make sure the external fd watch events are in-sync */ |
770 | /* with the kernel/libev internal state */ |
856 | /* with the kernel/libev internal state */ |
771 | inline_size void |
857 | inline_size void |
… | |
… | |
871 | |
957 | |
872 | for (fd = anfdmax; fd--; ) |
958 | for (fd = anfdmax; fd--; ) |
873 | if (anfds [fd].events) |
959 | if (anfds [fd].events) |
874 | { |
960 | { |
875 | fd_kill (EV_A_ fd); |
961 | fd_kill (EV_A_ fd); |
876 | return; |
962 | break; |
877 | } |
963 | } |
878 | } |
964 | } |
879 | |
965 | |
880 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
966 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
881 | static void noinline |
967 | static void noinline |
… | |
… | |
886 | for (fd = 0; fd < anfdmax; ++fd) |
972 | for (fd = 0; fd < anfdmax; ++fd) |
887 | if (anfds [fd].events) |
973 | if (anfds [fd].events) |
888 | { |
974 | { |
889 | anfds [fd].events = 0; |
975 | anfds [fd].events = 0; |
890 | anfds [fd].emask = 0; |
976 | anfds [fd].emask = 0; |
891 | fd_change (EV_A_ fd, EV__IOFDSET | 1); |
977 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
892 | } |
978 | } |
893 | } |
979 | } |
894 | |
980 | |
895 | /*****************************************************************************/ |
981 | /*****************************************************************************/ |
896 | |
982 | |
… | |
… | |
1040 | /*****************************************************************************/ |
1126 | /*****************************************************************************/ |
1041 | |
1127 | |
1042 | /* associate signal watchers to a signal signal */ |
1128 | /* associate signal watchers to a signal signal */ |
1043 | typedef struct |
1129 | typedef struct |
1044 | { |
1130 | { |
|
|
1131 | EV_ATOMIC_T pending; |
|
|
1132 | #if EV_MULTIPLICITY |
|
|
1133 | EV_P; |
|
|
1134 | #endif |
1045 | WL head; |
1135 | WL head; |
1046 | EV_ATOMIC_T gotsig; |
|
|
1047 | } ANSIG; |
1136 | } ANSIG; |
1048 | |
1137 | |
1049 | static ANSIG *signals; |
1138 | static ANSIG signals [EV_NSIG - 1]; |
1050 | static int signalmax; |
|
|
1051 | |
|
|
1052 | static EV_ATOMIC_T gotsig; |
|
|
1053 | |
1139 | |
1054 | /*****************************************************************************/ |
1140 | /*****************************************************************************/ |
1055 | |
1141 | |
1056 | /* used to prepare libev internal fd's */ |
1142 | /* used to prepare libev internal fd's */ |
1057 | /* this is not fork-safe */ |
1143 | /* this is not fork-safe */ |
… | |
… | |
1071 | evpipe_init (EV_P) |
1157 | evpipe_init (EV_P) |
1072 | { |
1158 | { |
1073 | if (!ev_is_active (&pipe_w)) |
1159 | if (!ev_is_active (&pipe_w)) |
1074 | { |
1160 | { |
1075 | #if EV_USE_EVENTFD |
1161 | #if EV_USE_EVENTFD |
|
|
1162 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
|
|
1163 | if (evfd < 0 && errno == EINVAL) |
1076 | if ((evfd = eventfd (0, 0)) >= 0) |
1164 | evfd = eventfd (0, 0); |
|
|
1165 | |
|
|
1166 | if (evfd >= 0) |
1077 | { |
1167 | { |
1078 | evpipe [0] = -1; |
1168 | evpipe [0] = -1; |
1079 | fd_intern (evfd); |
1169 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
1080 | ev_io_set (&pipe_w, evfd, EV_READ); |
1170 | ev_io_set (&pipe_w, evfd, EV_READ); |
1081 | } |
1171 | } |
1082 | else |
1172 | else |
1083 | #endif |
1173 | #endif |
1084 | { |
1174 | { |
… | |
… | |
1121 | /* called whenever the libev signal pipe */ |
1211 | /* called whenever the libev signal pipe */ |
1122 | /* got some events (signal, async) */ |
1212 | /* got some events (signal, async) */ |
1123 | static void |
1213 | static void |
1124 | pipecb (EV_P_ ev_io *iow, int revents) |
1214 | pipecb (EV_P_ ev_io *iow, int revents) |
1125 | { |
1215 | { |
|
|
1216 | int i; |
|
|
1217 | |
1126 | #if EV_USE_EVENTFD |
1218 | #if EV_USE_EVENTFD |
1127 | if (evfd >= 0) |
1219 | if (evfd >= 0) |
1128 | { |
1220 | { |
1129 | uint64_t counter; |
1221 | uint64_t counter; |
1130 | read (evfd, &counter, sizeof (uint64_t)); |
1222 | read (evfd, &counter, sizeof (uint64_t)); |
… | |
… | |
1134 | { |
1226 | { |
1135 | char dummy; |
1227 | char dummy; |
1136 | read (evpipe [0], &dummy, 1); |
1228 | read (evpipe [0], &dummy, 1); |
1137 | } |
1229 | } |
1138 | |
1230 | |
1139 | if (gotsig && ev_is_default_loop (EV_A)) |
1231 | if (sig_pending) |
1140 | { |
1232 | { |
1141 | int signum; |
1233 | sig_pending = 0; |
1142 | gotsig = 0; |
|
|
1143 | |
1234 | |
1144 | for (signum = signalmax; signum--; ) |
1235 | for (i = EV_NSIG - 1; i--; ) |
1145 | if (signals [signum].gotsig) |
1236 | if (expect_false (signals [i].pending)) |
1146 | ev_feed_signal_event (EV_A_ signum + 1); |
1237 | ev_feed_signal_event (EV_A_ i + 1); |
1147 | } |
1238 | } |
1148 | |
1239 | |
1149 | #if EV_ASYNC_ENABLE |
1240 | #if EV_ASYNC_ENABLE |
1150 | if (gotasync) |
1241 | if (async_pending) |
1151 | { |
1242 | { |
1152 | int i; |
1243 | async_pending = 0; |
1153 | gotasync = 0; |
|
|
1154 | |
1244 | |
1155 | for (i = asynccnt; i--; ) |
1245 | for (i = asynccnt; i--; ) |
1156 | if (asyncs [i]->sent) |
1246 | if (asyncs [i]->sent) |
1157 | { |
1247 | { |
1158 | asyncs [i]->sent = 0; |
1248 | asyncs [i]->sent = 0; |
… | |
… | |
1166 | |
1256 | |
1167 | static void |
1257 | static void |
1168 | ev_sighandler (int signum) |
1258 | ev_sighandler (int signum) |
1169 | { |
1259 | { |
1170 | #if EV_MULTIPLICITY |
1260 | #if EV_MULTIPLICITY |
1171 | struct ev_loop *loop = &default_loop_struct; |
1261 | EV_P = signals [signum - 1].loop; |
1172 | #endif |
1262 | #endif |
1173 | |
1263 | |
1174 | #if _WIN32 |
1264 | #if _WIN32 |
1175 | signal (signum, ev_sighandler); |
1265 | signal (signum, ev_sighandler); |
1176 | #endif |
1266 | #endif |
1177 | |
1267 | |
1178 | signals [signum - 1].gotsig = 1; |
1268 | signals [signum - 1].pending = 1; |
1179 | evpipe_write (EV_A_ &gotsig); |
1269 | evpipe_write (EV_A_ &sig_pending); |
1180 | } |
1270 | } |
1181 | |
1271 | |
1182 | void noinline |
1272 | void noinline |
1183 | ev_feed_signal_event (EV_P_ int signum) |
1273 | ev_feed_signal_event (EV_P_ int signum) |
1184 | { |
1274 | { |
1185 | WL w; |
1275 | WL w; |
1186 | |
1276 | |
|
|
1277 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
|
|
1278 | return; |
|
|
1279 | |
|
|
1280 | --signum; |
|
|
1281 | |
1187 | #if EV_MULTIPLICITY |
1282 | #if EV_MULTIPLICITY |
1188 | assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1283 | /* it is permissible to try to feed a signal to the wrong loop */ |
1189 | #endif |
1284 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
1190 | |
1285 | |
1191 | --signum; |
1286 | if (expect_false (signals [signum].loop != EV_A)) |
1192 | |
|
|
1193 | if (signum < 0 || signum >= signalmax) |
|
|
1194 | return; |
1287 | return; |
|
|
1288 | #endif |
1195 | |
1289 | |
1196 | signals [signum].gotsig = 0; |
1290 | signals [signum].pending = 0; |
1197 | |
1291 | |
1198 | for (w = signals [signum].head; w; w = w->next) |
1292 | for (w = signals [signum].head; w; w = w->next) |
1199 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1293 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1200 | } |
1294 | } |
|
|
1295 | |
|
|
1296 | #if EV_USE_SIGNALFD |
|
|
1297 | static void |
|
|
1298 | sigfdcb (EV_P_ ev_io *iow, int revents) |
|
|
1299 | { |
|
|
1300 | struct signalfd_siginfo si[2], *sip; /* these structs are big */ |
|
|
1301 | |
|
|
1302 | for (;;) |
|
|
1303 | { |
|
|
1304 | ssize_t res = read (sigfd, si, sizeof (si)); |
|
|
1305 | |
|
|
1306 | /* not ISO-C, as res might be -1, but works with SuS */ |
|
|
1307 | for (sip = si; (char *)sip < (char *)si + res; ++sip) |
|
|
1308 | ev_feed_signal_event (EV_A_ sip->ssi_signo); |
|
|
1309 | |
|
|
1310 | if (res < (ssize_t)sizeof (si)) |
|
|
1311 | break; |
|
|
1312 | } |
|
|
1313 | } |
|
|
1314 | #endif |
1201 | |
1315 | |
1202 | /*****************************************************************************/ |
1316 | /*****************************************************************************/ |
1203 | |
1317 | |
1204 | static WL childs [EV_PID_HASHSIZE]; |
1318 | static WL childs [EV_PID_HASHSIZE]; |
1205 | |
1319 | |
… | |
… | |
1350 | ev_backend (EV_P) |
1464 | ev_backend (EV_P) |
1351 | { |
1465 | { |
1352 | return backend; |
1466 | return backend; |
1353 | } |
1467 | } |
1354 | |
1468 | |
|
|
1469 | #if EV_MINIMAL < 2 |
1355 | unsigned int |
1470 | unsigned int |
1356 | ev_loop_count (EV_P) |
1471 | ev_loop_count (EV_P) |
1357 | { |
1472 | { |
1358 | return loop_count; |
1473 | return loop_count; |
1359 | } |
1474 | } |
1360 | |
1475 | |
|
|
1476 | unsigned int |
|
|
1477 | ev_loop_depth (EV_P) |
|
|
1478 | { |
|
|
1479 | return loop_depth; |
|
|
1480 | } |
|
|
1481 | |
1361 | void |
1482 | void |
1362 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1483 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1363 | { |
1484 | { |
1364 | io_blocktime = interval; |
1485 | io_blocktime = interval; |
1365 | } |
1486 | } |
… | |
… | |
1367 | void |
1488 | void |
1368 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1489 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1369 | { |
1490 | { |
1370 | timeout_blocktime = interval; |
1491 | timeout_blocktime = interval; |
1371 | } |
1492 | } |
|
|
1493 | |
|
|
1494 | void |
|
|
1495 | ev_set_userdata (EV_P_ void *data) |
|
|
1496 | { |
|
|
1497 | userdata = data; |
|
|
1498 | } |
|
|
1499 | |
|
|
1500 | void * |
|
|
1501 | ev_userdata (EV_P) |
|
|
1502 | { |
|
|
1503 | return userdata; |
|
|
1504 | } |
|
|
1505 | |
|
|
1506 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
|
|
1507 | { |
|
|
1508 | invoke_cb = invoke_pending_cb; |
|
|
1509 | } |
|
|
1510 | |
|
|
1511 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
|
|
1512 | { |
|
|
1513 | release_cb = release; |
|
|
1514 | acquire_cb = acquire; |
|
|
1515 | } |
|
|
1516 | #endif |
1372 | |
1517 | |
1373 | /* initialise a loop structure, must be zero-initialised */ |
1518 | /* initialise a loop structure, must be zero-initialised */ |
1374 | static void noinline |
1519 | static void noinline |
1375 | loop_init (EV_P_ unsigned int flags) |
1520 | loop_init (EV_P_ unsigned int flags) |
1376 | { |
1521 | { |
… | |
… | |
1394 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1539 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1395 | have_monotonic = 1; |
1540 | have_monotonic = 1; |
1396 | } |
1541 | } |
1397 | #endif |
1542 | #endif |
1398 | |
1543 | |
|
|
1544 | /* pid check not overridable via env */ |
|
|
1545 | #ifndef _WIN32 |
|
|
1546 | if (flags & EVFLAG_FORKCHECK) |
|
|
1547 | curpid = getpid (); |
|
|
1548 | #endif |
|
|
1549 | |
|
|
1550 | if (!(flags & EVFLAG_NOENV) |
|
|
1551 | && !enable_secure () |
|
|
1552 | && getenv ("LIBEV_FLAGS")) |
|
|
1553 | flags = atoi (getenv ("LIBEV_FLAGS")); |
|
|
1554 | |
1399 | ev_rt_now = ev_time (); |
1555 | ev_rt_now = ev_time (); |
1400 | mn_now = get_clock (); |
1556 | mn_now = get_clock (); |
1401 | now_floor = mn_now; |
1557 | now_floor = mn_now; |
1402 | rtmn_diff = ev_rt_now - mn_now; |
1558 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1559 | #if EV_MINIMAL < 2 |
|
|
1560 | invoke_cb = ev_invoke_pending; |
|
|
1561 | #endif |
1403 | |
1562 | |
1404 | io_blocktime = 0.; |
1563 | io_blocktime = 0.; |
1405 | timeout_blocktime = 0.; |
1564 | timeout_blocktime = 0.; |
1406 | backend = 0; |
1565 | backend = 0; |
1407 | backend_fd = -1; |
1566 | backend_fd = -1; |
1408 | gotasync = 0; |
1567 | sig_pending = 0; |
|
|
1568 | #if EV_ASYNC_ENABLE |
|
|
1569 | async_pending = 0; |
|
|
1570 | #endif |
1409 | #if EV_USE_INOTIFY |
1571 | #if EV_USE_INOTIFY |
1410 | fs_fd = -2; |
1572 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1411 | #endif |
1573 | #endif |
1412 | |
1574 | #if EV_USE_SIGNALFD |
1413 | /* pid check not overridable via env */ |
1575 | sigfd = flags & EVFLAG_NOSIGFD ? -1 : -2; |
1414 | #ifndef _WIN32 |
|
|
1415 | if (flags & EVFLAG_FORKCHECK) |
|
|
1416 | curpid = getpid (); |
|
|
1417 | #endif |
1576 | #endif |
1418 | |
|
|
1419 | if (!(flags & EVFLAG_NOENV) |
|
|
1420 | && !enable_secure () |
|
|
1421 | && getenv ("LIBEV_FLAGS")) |
|
|
1422 | flags = atoi (getenv ("LIBEV_FLAGS")); |
|
|
1423 | |
1577 | |
1424 | if (!(flags & 0x0000ffffU)) |
1578 | if (!(flags & 0x0000ffffU)) |
1425 | flags |= ev_recommended_backends (); |
1579 | flags |= ev_recommended_backends (); |
1426 | |
1580 | |
1427 | #if EV_USE_PORT |
1581 | #if EV_USE_PORT |
… | |
… | |
1453 | { |
1607 | { |
1454 | int i; |
1608 | int i; |
1455 | |
1609 | |
1456 | if (ev_is_active (&pipe_w)) |
1610 | if (ev_is_active (&pipe_w)) |
1457 | { |
1611 | { |
1458 | ev_ref (EV_A); /* signal watcher */ |
1612 | /*ev_ref (EV_A);*/ |
1459 | ev_io_stop (EV_A_ &pipe_w); |
1613 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1460 | |
1614 | |
1461 | #if EV_USE_EVENTFD |
1615 | #if EV_USE_EVENTFD |
1462 | if (evfd >= 0) |
1616 | if (evfd >= 0) |
1463 | close (evfd); |
1617 | close (evfd); |
1464 | #endif |
1618 | #endif |
… | |
… | |
1468 | close (evpipe [0]); |
1622 | close (evpipe [0]); |
1469 | close (evpipe [1]); |
1623 | close (evpipe [1]); |
1470 | } |
1624 | } |
1471 | } |
1625 | } |
1472 | |
1626 | |
|
|
1627 | #if EV_USE_SIGNALFD |
|
|
1628 | if (ev_is_active (&sigfd_w)) |
|
|
1629 | { |
|
|
1630 | /*ev_ref (EV_A);*/ |
|
|
1631 | /*ev_io_stop (EV_A_ &sigfd_w);*/ |
|
|
1632 | |
|
|
1633 | close (sigfd); |
|
|
1634 | } |
|
|
1635 | #endif |
|
|
1636 | |
1473 | #if EV_USE_INOTIFY |
1637 | #if EV_USE_INOTIFY |
1474 | if (fs_fd >= 0) |
1638 | if (fs_fd >= 0) |
1475 | close (fs_fd); |
1639 | close (fs_fd); |
1476 | #endif |
1640 | #endif |
1477 | |
1641 | |
… | |
… | |
1500 | #if EV_IDLE_ENABLE |
1664 | #if EV_IDLE_ENABLE |
1501 | array_free (idle, [i]); |
1665 | array_free (idle, [i]); |
1502 | #endif |
1666 | #endif |
1503 | } |
1667 | } |
1504 | |
1668 | |
1505 | ev_free (anfds); anfdmax = 0; |
1669 | ev_free (anfds); anfds = 0; anfdmax = 0; |
1506 | |
1670 | |
1507 | /* have to use the microsoft-never-gets-it-right macro */ |
1671 | /* have to use the microsoft-never-gets-it-right macro */ |
1508 | array_free (rfeed, EMPTY); |
1672 | array_free (rfeed, EMPTY); |
1509 | array_free (fdchange, EMPTY); |
1673 | array_free (fdchange, EMPTY); |
1510 | array_free (timer, EMPTY); |
1674 | array_free (timer, EMPTY); |
… | |
… | |
1545 | |
1709 | |
1546 | if (ev_is_active (&pipe_w)) |
1710 | if (ev_is_active (&pipe_w)) |
1547 | { |
1711 | { |
1548 | /* this "locks" the handlers against writing to the pipe */ |
1712 | /* this "locks" the handlers against writing to the pipe */ |
1549 | /* while we modify the fd vars */ |
1713 | /* while we modify the fd vars */ |
1550 | gotsig = 1; |
1714 | sig_pending = 1; |
1551 | #if EV_ASYNC_ENABLE |
1715 | #if EV_ASYNC_ENABLE |
1552 | gotasync = 1; |
1716 | async_pending = 1; |
1553 | #endif |
1717 | #endif |
1554 | |
1718 | |
1555 | ev_ref (EV_A); |
1719 | ev_ref (EV_A); |
1556 | ev_io_stop (EV_A_ &pipe_w); |
1720 | ev_io_stop (EV_A_ &pipe_w); |
1557 | |
1721 | |
… | |
… | |
1577 | #if EV_MULTIPLICITY |
1741 | #if EV_MULTIPLICITY |
1578 | |
1742 | |
1579 | struct ev_loop * |
1743 | struct ev_loop * |
1580 | ev_loop_new (unsigned int flags) |
1744 | ev_loop_new (unsigned int flags) |
1581 | { |
1745 | { |
1582 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1746 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1583 | |
1747 | |
1584 | memset (loop, 0, sizeof (struct ev_loop)); |
1748 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1585 | |
|
|
1586 | loop_init (EV_A_ flags); |
1749 | loop_init (EV_A_ flags); |
1587 | |
1750 | |
1588 | if (ev_backend (EV_A)) |
1751 | if (ev_backend (EV_A)) |
1589 | return loop; |
1752 | return EV_A; |
1590 | |
1753 | |
1591 | return 0; |
1754 | return 0; |
1592 | } |
1755 | } |
1593 | |
1756 | |
1594 | void |
1757 | void |
… | |
… | |
1601 | void |
1764 | void |
1602 | ev_loop_fork (EV_P) |
1765 | ev_loop_fork (EV_P) |
1603 | { |
1766 | { |
1604 | postfork = 1; /* must be in line with ev_default_fork */ |
1767 | postfork = 1; /* must be in line with ev_default_fork */ |
1605 | } |
1768 | } |
|
|
1769 | #endif /* multiplicity */ |
1606 | |
1770 | |
1607 | #if EV_VERIFY |
1771 | #if EV_VERIFY |
1608 | static void noinline |
1772 | static void noinline |
1609 | verify_watcher (EV_P_ W w) |
1773 | verify_watcher (EV_P_ W w) |
1610 | { |
1774 | { |
… | |
… | |
1638 | verify_watcher (EV_A_ ws [cnt]); |
1802 | verify_watcher (EV_A_ ws [cnt]); |
1639 | } |
1803 | } |
1640 | } |
1804 | } |
1641 | #endif |
1805 | #endif |
1642 | |
1806 | |
|
|
1807 | #if EV_MINIMAL < 2 |
1643 | void |
1808 | void |
1644 | ev_loop_verify (EV_P) |
1809 | ev_loop_verify (EV_P) |
1645 | { |
1810 | { |
1646 | #if EV_VERIFY |
1811 | #if EV_VERIFY |
1647 | int i; |
1812 | int i; |
… | |
… | |
1696 | assert (checkmax >= checkcnt); |
1861 | assert (checkmax >= checkcnt); |
1697 | array_verify (EV_A_ (W *)checks, checkcnt); |
1862 | array_verify (EV_A_ (W *)checks, checkcnt); |
1698 | |
1863 | |
1699 | # if 0 |
1864 | # if 0 |
1700 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1865 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1701 | for (signum = signalmax; signum--; ) if (signals [signum].gotsig) |
1866 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
1702 | # endif |
1867 | # endif |
1703 | #endif |
1868 | #endif |
1704 | } |
1869 | } |
1705 | |
1870 | #endif |
1706 | #endif /* multiplicity */ |
|
|
1707 | |
1871 | |
1708 | #if EV_MULTIPLICITY |
1872 | #if EV_MULTIPLICITY |
1709 | struct ev_loop * |
1873 | struct ev_loop * |
1710 | ev_default_loop_init (unsigned int flags) |
1874 | ev_default_loop_init (unsigned int flags) |
1711 | #else |
1875 | #else |
… | |
… | |
1714 | #endif |
1878 | #endif |
1715 | { |
1879 | { |
1716 | if (!ev_default_loop_ptr) |
1880 | if (!ev_default_loop_ptr) |
1717 | { |
1881 | { |
1718 | #if EV_MULTIPLICITY |
1882 | #if EV_MULTIPLICITY |
1719 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1883 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
1720 | #else |
1884 | #else |
1721 | ev_default_loop_ptr = 1; |
1885 | ev_default_loop_ptr = 1; |
1722 | #endif |
1886 | #endif |
1723 | |
1887 | |
1724 | loop_init (EV_A_ flags); |
1888 | loop_init (EV_A_ flags); |
… | |
… | |
1741 | |
1905 | |
1742 | void |
1906 | void |
1743 | ev_default_destroy (void) |
1907 | ev_default_destroy (void) |
1744 | { |
1908 | { |
1745 | #if EV_MULTIPLICITY |
1909 | #if EV_MULTIPLICITY |
1746 | struct ev_loop *loop = ev_default_loop_ptr; |
1910 | EV_P = ev_default_loop_ptr; |
1747 | #endif |
1911 | #endif |
1748 | |
1912 | |
1749 | ev_default_loop_ptr = 0; |
1913 | ev_default_loop_ptr = 0; |
1750 | |
1914 | |
1751 | #ifndef _WIN32 |
1915 | #ifndef _WIN32 |
… | |
… | |
1758 | |
1922 | |
1759 | void |
1923 | void |
1760 | ev_default_fork (void) |
1924 | ev_default_fork (void) |
1761 | { |
1925 | { |
1762 | #if EV_MULTIPLICITY |
1926 | #if EV_MULTIPLICITY |
1763 | struct ev_loop *loop = ev_default_loop_ptr; |
1927 | EV_P = ev_default_loop_ptr; |
1764 | #endif |
1928 | #endif |
1765 | |
1929 | |
1766 | postfork = 1; /* must be in line with ev_loop_fork */ |
1930 | postfork = 1; /* must be in line with ev_loop_fork */ |
1767 | } |
1931 | } |
1768 | |
1932 | |
… | |
… | |
1772 | ev_invoke (EV_P_ void *w, int revents) |
1936 | ev_invoke (EV_P_ void *w, int revents) |
1773 | { |
1937 | { |
1774 | EV_CB_INVOKE ((W)w, revents); |
1938 | EV_CB_INVOKE ((W)w, revents); |
1775 | } |
1939 | } |
1776 | |
1940 | |
1777 | inline_speed void |
1941 | unsigned int |
1778 | call_pending (EV_P) |
1942 | ev_pending_count (EV_P) |
|
|
1943 | { |
|
|
1944 | int pri; |
|
|
1945 | unsigned int count = 0; |
|
|
1946 | |
|
|
1947 | for (pri = NUMPRI; pri--; ) |
|
|
1948 | count += pendingcnt [pri]; |
|
|
1949 | |
|
|
1950 | return count; |
|
|
1951 | } |
|
|
1952 | |
|
|
1953 | void noinline |
|
|
1954 | ev_invoke_pending (EV_P) |
1779 | { |
1955 | { |
1780 | int pri; |
1956 | int pri; |
1781 | |
1957 | |
1782 | for (pri = NUMPRI; pri--; ) |
1958 | for (pri = NUMPRI; pri--; ) |
1783 | while (pendingcnt [pri]) |
1959 | while (pendingcnt [pri]) |
… | |
… | |
2018 | |
2194 | |
2019 | mn_now = ev_rt_now; |
2195 | mn_now = ev_rt_now; |
2020 | } |
2196 | } |
2021 | } |
2197 | } |
2022 | |
2198 | |
2023 | static int loop_done; |
|
|
2024 | |
|
|
2025 | void |
2199 | void |
2026 | ev_loop (EV_P_ int flags) |
2200 | ev_loop (EV_P_ int flags) |
2027 | { |
2201 | { |
|
|
2202 | #if EV_MINIMAL < 2 |
|
|
2203 | ++loop_depth; |
|
|
2204 | #endif |
|
|
2205 | |
|
|
2206 | assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); |
|
|
2207 | |
2028 | loop_done = EVUNLOOP_CANCEL; |
2208 | loop_done = EVUNLOOP_CANCEL; |
2029 | |
2209 | |
2030 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
2210 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
2031 | |
2211 | |
2032 | do |
2212 | do |
2033 | { |
2213 | { |
2034 | #if EV_VERIFY >= 2 |
2214 | #if EV_VERIFY >= 2 |
2035 | ev_loop_verify (EV_A); |
2215 | ev_loop_verify (EV_A); |
… | |
… | |
2048 | /* we might have forked, so queue fork handlers */ |
2228 | /* we might have forked, so queue fork handlers */ |
2049 | if (expect_false (postfork)) |
2229 | if (expect_false (postfork)) |
2050 | if (forkcnt) |
2230 | if (forkcnt) |
2051 | { |
2231 | { |
2052 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2232 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2053 | call_pending (EV_A); |
2233 | EV_INVOKE_PENDING; |
2054 | } |
2234 | } |
2055 | #endif |
2235 | #endif |
2056 | |
2236 | |
2057 | /* queue prepare watchers (and execute them) */ |
2237 | /* queue prepare watchers (and execute them) */ |
2058 | if (expect_false (preparecnt)) |
2238 | if (expect_false (preparecnt)) |
2059 | { |
2239 | { |
2060 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2240 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2061 | call_pending (EV_A); |
2241 | EV_INVOKE_PENDING; |
2062 | } |
2242 | } |
|
|
2243 | |
|
|
2244 | if (expect_false (loop_done)) |
|
|
2245 | break; |
2063 | |
2246 | |
2064 | /* we might have forked, so reify kernel state if necessary */ |
2247 | /* we might have forked, so reify kernel state if necessary */ |
2065 | if (expect_false (postfork)) |
2248 | if (expect_false (postfork)) |
2066 | loop_fork (EV_A); |
2249 | loop_fork (EV_A); |
2067 | |
2250 | |
… | |
… | |
2073 | ev_tstamp waittime = 0.; |
2256 | ev_tstamp waittime = 0.; |
2074 | ev_tstamp sleeptime = 0.; |
2257 | ev_tstamp sleeptime = 0.; |
2075 | |
2258 | |
2076 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2259 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2077 | { |
2260 | { |
|
|
2261 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2262 | ev_tstamp prev_mn_now = mn_now; |
|
|
2263 | |
2078 | /* update time to cancel out callback processing overhead */ |
2264 | /* update time to cancel out callback processing overhead */ |
2079 | time_update (EV_A_ 1e100); |
2265 | time_update (EV_A_ 1e100); |
2080 | |
2266 | |
2081 | waittime = MAX_BLOCKTIME; |
2267 | waittime = MAX_BLOCKTIME; |
2082 | |
2268 | |
… | |
… | |
2092 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
2278 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
2093 | if (waittime > to) waittime = to; |
2279 | if (waittime > to) waittime = to; |
2094 | } |
2280 | } |
2095 | #endif |
2281 | #endif |
2096 | |
2282 | |
|
|
2283 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
2097 | if (expect_false (waittime < timeout_blocktime)) |
2284 | if (expect_false (waittime < timeout_blocktime)) |
2098 | waittime = timeout_blocktime; |
2285 | waittime = timeout_blocktime; |
2099 | |
2286 | |
2100 | sleeptime = waittime - backend_fudge; |
2287 | /* extra check because io_blocktime is commonly 0 */ |
2101 | |
|
|
2102 | if (expect_true (sleeptime > io_blocktime)) |
2288 | if (expect_false (io_blocktime)) |
2103 | sleeptime = io_blocktime; |
|
|
2104 | |
|
|
2105 | if (sleeptime) |
|
|
2106 | { |
2289 | { |
|
|
2290 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
|
|
2291 | |
|
|
2292 | if (sleeptime > waittime - backend_fudge) |
|
|
2293 | sleeptime = waittime - backend_fudge; |
|
|
2294 | |
|
|
2295 | if (expect_true (sleeptime > 0.)) |
|
|
2296 | { |
2107 | ev_sleep (sleeptime); |
2297 | ev_sleep (sleeptime); |
2108 | waittime -= sleeptime; |
2298 | waittime -= sleeptime; |
|
|
2299 | } |
2109 | } |
2300 | } |
2110 | } |
2301 | } |
2111 | |
2302 | |
|
|
2303 | #if EV_MINIMAL < 2 |
2112 | ++loop_count; |
2304 | ++loop_count; |
|
|
2305 | #endif |
|
|
2306 | assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ |
2113 | backend_poll (EV_A_ waittime); |
2307 | backend_poll (EV_A_ waittime); |
|
|
2308 | assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ |
2114 | |
2309 | |
2115 | /* update ev_rt_now, do magic */ |
2310 | /* update ev_rt_now, do magic */ |
2116 | time_update (EV_A_ waittime + sleeptime); |
2311 | time_update (EV_A_ waittime + sleeptime); |
2117 | } |
2312 | } |
2118 | |
2313 | |
… | |
… | |
2129 | |
2324 | |
2130 | /* queue check watchers, to be executed first */ |
2325 | /* queue check watchers, to be executed first */ |
2131 | if (expect_false (checkcnt)) |
2326 | if (expect_false (checkcnt)) |
2132 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2327 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2133 | |
2328 | |
2134 | call_pending (EV_A); |
2329 | EV_INVOKE_PENDING; |
2135 | } |
2330 | } |
2136 | while (expect_true ( |
2331 | while (expect_true ( |
2137 | activecnt |
2332 | activecnt |
2138 | && !loop_done |
2333 | && !loop_done |
2139 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2334 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2140 | )); |
2335 | )); |
2141 | |
2336 | |
2142 | if (loop_done == EVUNLOOP_ONE) |
2337 | if (loop_done == EVUNLOOP_ONE) |
2143 | loop_done = EVUNLOOP_CANCEL; |
2338 | loop_done = EVUNLOOP_CANCEL; |
|
|
2339 | |
|
|
2340 | #if EV_MINIMAL < 2 |
|
|
2341 | --loop_depth; |
|
|
2342 | #endif |
2144 | } |
2343 | } |
2145 | |
2344 | |
2146 | void |
2345 | void |
2147 | ev_unloop (EV_P_ int how) |
2346 | ev_unloop (EV_P_ int how) |
2148 | { |
2347 | { |
… | |
… | |
2199 | inline_size void |
2398 | inline_size void |
2200 | wlist_del (WL *head, WL elem) |
2399 | wlist_del (WL *head, WL elem) |
2201 | { |
2400 | { |
2202 | while (*head) |
2401 | while (*head) |
2203 | { |
2402 | { |
2204 | if (*head == elem) |
2403 | if (expect_true (*head == elem)) |
2205 | { |
2404 | { |
2206 | *head = elem->next; |
2405 | *head = elem->next; |
2207 | return; |
2406 | break; |
2208 | } |
2407 | } |
2209 | |
2408 | |
2210 | head = &(*head)->next; |
2409 | head = &(*head)->next; |
2211 | } |
2410 | } |
2212 | } |
2411 | } |
… | |
… | |
2240 | } |
2439 | } |
2241 | |
2440 | |
2242 | inline_size void |
2441 | inline_size void |
2243 | pri_adjust (EV_P_ W w) |
2442 | pri_adjust (EV_P_ W w) |
2244 | { |
2443 | { |
2245 | int pri = w->priority; |
2444 | int pri = ev_priority (w); |
2246 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2445 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2247 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2446 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2248 | w->priority = pri; |
2447 | ev_set_priority (w, pri); |
2249 | } |
2448 | } |
2250 | |
2449 | |
2251 | inline_speed void |
2450 | inline_speed void |
2252 | ev_start (EV_P_ W w, int active) |
2451 | ev_start (EV_P_ W w, int active) |
2253 | { |
2452 | { |
… | |
… | |
2280 | |
2479 | |
2281 | ev_start (EV_A_ (W)w, 1); |
2480 | ev_start (EV_A_ (W)w, 1); |
2282 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2481 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2283 | wlist_add (&anfds[fd].head, (WL)w); |
2482 | wlist_add (&anfds[fd].head, (WL)w); |
2284 | |
2483 | |
2285 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | 1); |
2484 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
2286 | w->events &= ~EV__IOFDSET; |
2485 | w->events &= ~EV__IOFDSET; |
2287 | |
2486 | |
2288 | EV_FREQUENT_CHECK; |
2487 | EV_FREQUENT_CHECK; |
2289 | } |
2488 | } |
2290 | |
2489 | |
… | |
… | |
2384 | } |
2583 | } |
2385 | |
2584 | |
2386 | EV_FREQUENT_CHECK; |
2585 | EV_FREQUENT_CHECK; |
2387 | } |
2586 | } |
2388 | |
2587 | |
|
|
2588 | ev_tstamp |
|
|
2589 | ev_timer_remaining (EV_P_ ev_timer *w) |
|
|
2590 | { |
|
|
2591 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
|
|
2592 | } |
|
|
2593 | |
2389 | #if EV_PERIODIC_ENABLE |
2594 | #if EV_PERIODIC_ENABLE |
2390 | void noinline |
2595 | void noinline |
2391 | ev_periodic_start (EV_P_ ev_periodic *w) |
2596 | ev_periodic_start (EV_P_ ev_periodic *w) |
2392 | { |
2597 | { |
2393 | if (expect_false (ev_is_active (w))) |
2598 | if (expect_false (ev_is_active (w))) |
… | |
… | |
2460 | #endif |
2665 | #endif |
2461 | |
2666 | |
2462 | void noinline |
2667 | void noinline |
2463 | ev_signal_start (EV_P_ ev_signal *w) |
2668 | ev_signal_start (EV_P_ ev_signal *w) |
2464 | { |
2669 | { |
2465 | #if EV_MULTIPLICITY |
|
|
2466 | assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
2467 | #endif |
|
|
2468 | if (expect_false (ev_is_active (w))) |
2670 | if (expect_false (ev_is_active (w))) |
2469 | return; |
2671 | return; |
2470 | |
2672 | |
2471 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); |
2673 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
2472 | |
2674 | |
2473 | evpipe_init (EV_A); |
2675 | #if EV_MULTIPLICITY |
|
|
2676 | assert (("libev: a signal must not be attached to two different loops", |
|
|
2677 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
2474 | |
2678 | |
2475 | EV_FREQUENT_CHECK; |
2679 | signals [w->signum - 1].loop = EV_A; |
|
|
2680 | #endif |
2476 | |
2681 | |
|
|
2682 | EV_FREQUENT_CHECK; |
|
|
2683 | |
|
|
2684 | #if EV_USE_SIGNALFD |
|
|
2685 | if (sigfd == -2) |
2477 | { |
2686 | { |
2478 | #ifndef _WIN32 |
2687 | sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC); |
2479 | sigset_t full, prev; |
2688 | if (sigfd < 0 && errno == EINVAL) |
2480 | sigfillset (&full); |
2689 | sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */ |
2481 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2482 | #endif |
|
|
2483 | |
2690 | |
2484 | array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); |
2691 | if (sigfd >= 0) |
|
|
2692 | { |
|
|
2693 | fd_intern (sigfd); /* doing it twice will not hurt */ |
2485 | |
2694 | |
2486 | #ifndef _WIN32 |
2695 | sigemptyset (&sigfd_set); |
2487 | sigprocmask (SIG_SETMASK, &prev, 0); |
2696 | |
2488 | #endif |
2697 | ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ); |
|
|
2698 | ev_set_priority (&sigfd_w, EV_MAXPRI); |
|
|
2699 | ev_io_start (EV_A_ &sigfd_w); |
|
|
2700 | ev_unref (EV_A); /* signalfd watcher should not keep loop alive */ |
|
|
2701 | } |
2489 | } |
2702 | } |
|
|
2703 | |
|
|
2704 | if (sigfd >= 0) |
|
|
2705 | { |
|
|
2706 | /* TODO: check .head */ |
|
|
2707 | sigaddset (&sigfd_set, w->signum); |
|
|
2708 | sigprocmask (SIG_BLOCK, &sigfd_set, 0); |
|
|
2709 | |
|
|
2710 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2711 | } |
|
|
2712 | #endif |
2490 | |
2713 | |
2491 | ev_start (EV_A_ (W)w, 1); |
2714 | ev_start (EV_A_ (W)w, 1); |
2492 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2715 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2493 | |
2716 | |
2494 | if (!((WL)w)->next) |
2717 | if (!((WL)w)->next) |
|
|
2718 | # if EV_USE_SIGNALFD |
|
|
2719 | if (sigfd < 0) /*TODO*/ |
|
|
2720 | # endif |
2495 | { |
2721 | { |
2496 | #if _WIN32 |
2722 | # if _WIN32 |
2497 | signal (w->signum, ev_sighandler); |
2723 | signal (w->signum, ev_sighandler); |
2498 | #else |
2724 | # else |
2499 | struct sigaction sa; |
2725 | struct sigaction sa; |
|
|
2726 | |
|
|
2727 | evpipe_init (EV_A); |
|
|
2728 | |
2500 | sa.sa_handler = ev_sighandler; |
2729 | sa.sa_handler = ev_sighandler; |
2501 | sigfillset (&sa.sa_mask); |
2730 | sigfillset (&sa.sa_mask); |
2502 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2731 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2503 | sigaction (w->signum, &sa, 0); |
2732 | sigaction (w->signum, &sa, 0); |
|
|
2733 | |
|
|
2734 | sigemptyset (&sa.sa_mask); |
|
|
2735 | sigaddset (&sa.sa_mask, w->signum); |
|
|
2736 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
2504 | #endif |
2737 | #endif |
2505 | } |
2738 | } |
2506 | |
2739 | |
2507 | EV_FREQUENT_CHECK; |
2740 | EV_FREQUENT_CHECK; |
2508 | } |
2741 | } |
2509 | |
2742 | |
2510 | void noinline |
2743 | void noinline |
… | |
… | |
2518 | |
2751 | |
2519 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2752 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2520 | ev_stop (EV_A_ (W)w); |
2753 | ev_stop (EV_A_ (W)w); |
2521 | |
2754 | |
2522 | if (!signals [w->signum - 1].head) |
2755 | if (!signals [w->signum - 1].head) |
|
|
2756 | { |
|
|
2757 | #if EV_MULTIPLICITY |
|
|
2758 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
|
|
2759 | #endif |
|
|
2760 | #if EV_USE_SIGNALFD |
|
|
2761 | if (sigfd >= 0) |
|
|
2762 | { |
|
|
2763 | sigprocmask (SIG_UNBLOCK, &sigfd_set, 0);//D |
|
|
2764 | sigdelset (&sigfd_set, w->signum); |
|
|
2765 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2766 | sigprocmask (SIG_BLOCK, &sigfd_set, 0);//D |
|
|
2767 | /*TODO: maybe unblock signal? */ |
|
|
2768 | } |
|
|
2769 | else |
|
|
2770 | #endif |
2523 | signal (w->signum, SIG_DFL); |
2771 | signal (w->signum, SIG_DFL); |
|
|
2772 | } |
2524 | |
2773 | |
2525 | EV_FREQUENT_CHECK; |
2774 | EV_FREQUENT_CHECK; |
2526 | } |
2775 | } |
2527 | |
2776 | |
2528 | void |
2777 | void |
… | |
… | |
3008 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3257 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3009 | { |
3258 | { |
3010 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
3259 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
3011 | |
3260 | |
3012 | { |
3261 | { |
3013 | struct ev_loop *loop = w->other; |
3262 | EV_P = w->other; |
3014 | |
3263 | |
3015 | while (fdchangecnt) |
3264 | while (fdchangecnt) |
3016 | { |
3265 | { |
3017 | fd_reify (EV_A); |
3266 | fd_reify (EV_A); |
3018 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3267 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
… | |
… | |
3026 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
3275 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
3027 | |
3276 | |
3028 | ev_embed_stop (EV_A_ w); |
3277 | ev_embed_stop (EV_A_ w); |
3029 | |
3278 | |
3030 | { |
3279 | { |
3031 | struct ev_loop *loop = w->other; |
3280 | EV_P = w->other; |
3032 | |
3281 | |
3033 | ev_loop_fork (EV_A); |
3282 | ev_loop_fork (EV_A); |
3034 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3283 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3035 | } |
3284 | } |
3036 | |
3285 | |
… | |
… | |
3050 | { |
3299 | { |
3051 | if (expect_false (ev_is_active (w))) |
3300 | if (expect_false (ev_is_active (w))) |
3052 | return; |
3301 | return; |
3053 | |
3302 | |
3054 | { |
3303 | { |
3055 | struct ev_loop *loop = w->other; |
3304 | EV_P = w->other; |
3056 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3305 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3057 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3306 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3058 | } |
3307 | } |
3059 | |
3308 | |
3060 | EV_FREQUENT_CHECK; |
3309 | EV_FREQUENT_CHECK; |
… | |
… | |
3172 | |
3421 | |
3173 | void |
3422 | void |
3174 | ev_async_send (EV_P_ ev_async *w) |
3423 | ev_async_send (EV_P_ ev_async *w) |
3175 | { |
3424 | { |
3176 | w->sent = 1; |
3425 | w->sent = 1; |
3177 | evpipe_write (EV_A_ &gotasync); |
3426 | evpipe_write (EV_A_ &async_pending); |
3178 | } |
3427 | } |
3179 | #endif |
3428 | #endif |
3180 | |
3429 | |
3181 | /*****************************************************************************/ |
3430 | /*****************************************************************************/ |
3182 | |
3431 | |
… | |
… | |
3331 | if (types & EV_CHECK) |
3580 | if (types & EV_CHECK) |
3332 | for (i = checkcnt; i--; ) |
3581 | for (i = checkcnt; i--; ) |
3333 | cb (EV_A_ EV_CHECK, checks [i]); |
3582 | cb (EV_A_ EV_CHECK, checks [i]); |
3334 | |
3583 | |
3335 | if (types & EV_SIGNAL) |
3584 | if (types & EV_SIGNAL) |
3336 | for (i = 0; i < signalmax; ++i) |
3585 | for (i = 0; i < EV_NSIG - 1; ++i) |
3337 | for (wl = signals [i].head; wl; ) |
3586 | for (wl = signals [i].head; wl; ) |
3338 | { |
3587 | { |
3339 | wn = wl->next; |
3588 | wn = wl->next; |
3340 | cb (EV_A_ EV_SIGNAL, wl); |
3589 | cb (EV_A_ EV_SIGNAL, wl); |
3341 | wl = wn; |
3590 | wl = wn; |