… | |
… | |
57 | # endif |
57 | # endif |
58 | # ifndef EV_USE_MONOTONIC |
58 | # ifndef EV_USE_MONOTONIC |
59 | # define EV_USE_MONOTONIC 1 |
59 | # define EV_USE_MONOTONIC 1 |
60 | # endif |
60 | # endif |
61 | # endif |
61 | # endif |
|
|
62 | # elif !defined(EV_USE_CLOCK_SYSCALL) |
|
|
63 | # define EV_USE_CLOCK_SYSCALL 0 |
62 | # endif |
64 | # endif |
63 | |
65 | |
64 | # if HAVE_CLOCK_GETTIME |
66 | # if HAVE_CLOCK_GETTIME |
65 | # ifndef EV_USE_MONOTONIC |
67 | # ifndef EV_USE_MONOTONIC |
66 | # define EV_USE_MONOTONIC 1 |
68 | # define EV_USE_MONOTONIC 1 |
… | |
… | |
131 | # else |
133 | # else |
132 | # define EV_USE_INOTIFY 0 |
134 | # define EV_USE_INOTIFY 0 |
133 | # endif |
135 | # endif |
134 | # endif |
136 | # endif |
135 | |
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 | |
136 | # ifndef EV_USE_EVENTFD |
146 | # ifndef EV_USE_EVENTFD |
137 | # if HAVE_EVENTFD |
147 | # if HAVE_EVENTFD |
138 | # define EV_USE_EVENTFD 1 |
148 | # define EV_USE_EVENTFD 1 |
139 | # else |
149 | # else |
140 | # define EV_USE_EVENTFD 0 |
150 | # define EV_USE_EVENTFD 0 |
… | |
… | |
176 | # endif |
186 | # endif |
177 | #endif |
187 | #endif |
178 | |
188 | |
179 | /* 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 */ |
180 | |
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 | |
181 | #ifndef EV_USE_CLOCK_SYSCALL |
218 | #ifndef EV_USE_CLOCK_SYSCALL |
182 | # if __linux && __GLIBC__ >= 2 |
219 | # if __linux && __GLIBC__ >= 2 |
183 | # define EV_USE_CLOCK_SYSCALL 1 |
220 | # define EV_USE_CLOCK_SYSCALL 1 |
184 | # else |
221 | # else |
185 | # define EV_USE_CLOCK_SYSCALL 0 |
222 | # define EV_USE_CLOCK_SYSCALL 0 |
… | |
… | |
264 | # else |
301 | # else |
265 | # define EV_USE_EVENTFD 0 |
302 | # define EV_USE_EVENTFD 0 |
266 | # endif |
303 | # endif |
267 | #endif |
304 | #endif |
268 | |
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 | |
269 | #if 0 /* debugging */ |
314 | #if 0 /* debugging */ |
270 | # define EV_VERIFY 3 |
315 | # define EV_VERIFY 3 |
271 | # define EV_USE_4HEAP 1 |
316 | # define EV_USE_4HEAP 1 |
272 | # define EV_HEAP_CACHE_AT 1 |
317 | # define EV_HEAP_CACHE_AT 1 |
273 | #endif |
318 | #endif |
… | |
… | |
280 | # define EV_USE_4HEAP !EV_MINIMAL |
325 | # define EV_USE_4HEAP !EV_MINIMAL |
281 | #endif |
326 | #endif |
282 | |
327 | |
283 | #ifndef EV_HEAP_CACHE_AT |
328 | #ifndef EV_HEAP_CACHE_AT |
284 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
329 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
|
|
330 | #endif |
|
|
331 | |
|
|
332 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
|
|
333 | /* which makes programs even slower. might work on other unices, too. */ |
|
|
334 | #if EV_USE_CLOCK_SYSCALL |
|
|
335 | # include <syscall.h> |
|
|
336 | # ifdef SYS_clock_gettime |
|
|
337 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
|
|
338 | # undef EV_USE_MONOTONIC |
|
|
339 | # define EV_USE_MONOTONIC 1 |
|
|
340 | # else |
|
|
341 | # undef EV_USE_CLOCK_SYSCALL |
|
|
342 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
343 | # endif |
285 | #endif |
344 | #endif |
286 | |
345 | |
287 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
346 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
288 | |
347 | |
289 | #ifndef CLOCK_MONOTONIC |
348 | #ifndef CLOCK_MONOTONIC |
… | |
… | |
320 | |
379 | |
321 | #if EV_SELECT_IS_WINSOCKET |
380 | #if EV_SELECT_IS_WINSOCKET |
322 | # include <winsock.h> |
381 | # include <winsock.h> |
323 | #endif |
382 | #endif |
324 | |
383 | |
325 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
|
|
326 | /* which makes programs even slower. might work on other unices, too. */ |
|
|
327 | #if EV_USE_CLOCK_SYSCALL |
|
|
328 | # include <syscall.h> |
|
|
329 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
|
|
330 | # undef EV_USE_MONOTONIC |
|
|
331 | # define EV_USE_MONOTONIC 1 |
|
|
332 | #endif |
|
|
333 | |
|
|
334 | #if EV_USE_EVENTFD |
384 | #if EV_USE_EVENTFD |
335 | /* 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 */ |
336 | # include <stdint.h> |
386 | # include <stdint.h> |
|
|
387 | # ifndef EFD_NONBLOCK |
|
|
388 | # define EFD_NONBLOCK O_NONBLOCK |
|
|
389 | # endif |
|
|
390 | # ifndef EFD_CLOEXEC |
|
|
391 | # ifdef O_CLOEXEC |
|
|
392 | # define EFD_CLOEXEC O_CLOEXEC |
|
|
393 | # else |
|
|
394 | # define EFD_CLOEXEC 02000000 |
|
|
395 | # endif |
|
|
396 | # endif |
337 | # ifdef __cplusplus |
397 | # ifdef __cplusplus |
338 | extern "C" { |
398 | extern "C" { |
339 | # endif |
399 | # endif |
340 | int eventfd (unsigned int initval, int flags); |
400 | int eventfd (unsigned int initval, int flags); |
341 | # ifdef __cplusplus |
401 | # ifdef __cplusplus |
342 | } |
402 | } |
343 | # endif |
403 | # endif |
|
|
404 | #endif |
|
|
405 | |
|
|
406 | #if EV_USE_SIGNALFD |
|
|
407 | # include <sys/signalfd.h> |
344 | #endif |
408 | #endif |
345 | |
409 | |
346 | /**/ |
410 | /**/ |
347 | |
411 | |
348 | #if EV_VERIFY >= 3 |
412 | #if EV_VERIFY >= 3 |
… | |
… | |
384 | # define inline_speed static noinline |
448 | # define inline_speed static noinline |
385 | #else |
449 | #else |
386 | # define inline_speed static inline |
450 | # define inline_speed static inline |
387 | #endif |
451 | #endif |
388 | |
452 | |
389 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
453 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
454 | |
|
|
455 | #if EV_MINPRI == EV_MAXPRI |
|
|
456 | # define ABSPRI(w) (((W)w), 0) |
|
|
457 | #else |
390 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
458 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
|
|
459 | #endif |
391 | |
460 | |
392 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
461 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
393 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
462 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
394 | |
463 | |
395 | typedef ev_watcher *W; |
464 | typedef ev_watcher *W; |
… | |
… | |
478 | #define ev_malloc(size) ev_realloc (0, (size)) |
547 | #define ev_malloc(size) ev_realloc (0, (size)) |
479 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
548 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
480 | |
549 | |
481 | /*****************************************************************************/ |
550 | /*****************************************************************************/ |
482 | |
551 | |
|
|
552 | /* set in reify when reification needed */ |
|
|
553 | #define EV_ANFD_REIFY 1 |
|
|
554 | |
|
|
555 | /* file descriptor info structure */ |
483 | typedef struct |
556 | typedef struct |
484 | { |
557 | { |
485 | WL head; |
558 | WL head; |
486 | unsigned char events; |
559 | unsigned char events; /* the events watched for */ |
487 | unsigned char reify; |
560 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
488 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
561 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
489 | unsigned char unused; |
562 | unsigned char unused; |
490 | #if EV_USE_EPOLL |
563 | #if EV_USE_EPOLL |
491 | unsigned int egen; /* generation counter to counter epoll bugs */ |
564 | unsigned int egen; /* generation counter to counter epoll bugs */ |
492 | #endif |
565 | #endif |
493 | #if EV_SELECT_IS_WINSOCKET |
566 | #if EV_SELECT_IS_WINSOCKET |
494 | SOCKET handle; |
567 | SOCKET handle; |
495 | #endif |
568 | #endif |
496 | } ANFD; |
569 | } ANFD; |
497 | |
570 | |
|
|
571 | /* stores the pending event set for a given watcher */ |
498 | typedef struct |
572 | typedef struct |
499 | { |
573 | { |
500 | W w; |
574 | W w; |
501 | int events; |
575 | int events; /* the pending event set for the given watcher */ |
502 | } ANPENDING; |
576 | } ANPENDING; |
503 | |
577 | |
504 | #if EV_USE_INOTIFY |
578 | #if EV_USE_INOTIFY |
505 | /* hash table entry per inotify-id */ |
579 | /* hash table entry per inotify-id */ |
506 | typedef struct |
580 | typedef struct |
… | |
… | |
509 | } ANFS; |
583 | } ANFS; |
510 | #endif |
584 | #endif |
511 | |
585 | |
512 | /* Heap Entry */ |
586 | /* Heap Entry */ |
513 | #if EV_HEAP_CACHE_AT |
587 | #if EV_HEAP_CACHE_AT |
|
|
588 | /* a heap element */ |
514 | typedef struct { |
589 | typedef struct { |
515 | ev_tstamp at; |
590 | ev_tstamp at; |
516 | WT w; |
591 | WT w; |
517 | } ANHE; |
592 | } ANHE; |
518 | |
593 | |
519 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
594 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
520 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
595 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
521 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
596 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
522 | #else |
597 | #else |
|
|
598 | /* a heap element */ |
523 | typedef WT ANHE; |
599 | typedef WT ANHE; |
524 | |
600 | |
525 | #define ANHE_w(he) (he) |
601 | #define ANHE_w(he) (he) |
526 | #define ANHE_at(he) (he)->at |
602 | #define ANHE_at(he) (he)->at |
527 | #define ANHE_at_cache(he) |
603 | #define ANHE_at_cache(he) |
… | |
… | |
551 | |
627 | |
552 | static int ev_default_loop_ptr; |
628 | static int ev_default_loop_ptr; |
553 | |
629 | |
554 | #endif |
630 | #endif |
555 | |
631 | |
|
|
632 | #if EV_MINIMAL < 2 |
|
|
633 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
|
|
634 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
|
|
635 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
|
|
636 | #else |
|
|
637 | # define EV_RELEASE_CB (void)0 |
|
|
638 | # define EV_ACQUIRE_CB (void)0 |
|
|
639 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
|
|
640 | #endif |
|
|
641 | |
|
|
642 | #define EVUNLOOP_RECURSE 0x80 |
|
|
643 | |
556 | /*****************************************************************************/ |
644 | /*****************************************************************************/ |
557 | |
645 | |
|
|
646 | #ifndef EV_HAVE_EV_TIME |
558 | ev_tstamp |
647 | ev_tstamp |
559 | ev_time (void) |
648 | ev_time (void) |
560 | { |
649 | { |
561 | #if EV_USE_REALTIME |
650 | #if EV_USE_REALTIME |
562 | if (expect_true (have_realtime)) |
651 | if (expect_true (have_realtime)) |
… | |
… | |
569 | |
658 | |
570 | struct timeval tv; |
659 | struct timeval tv; |
571 | gettimeofday (&tv, 0); |
660 | gettimeofday (&tv, 0); |
572 | return tv.tv_sec + tv.tv_usec * 1e-6; |
661 | return tv.tv_sec + tv.tv_usec * 1e-6; |
573 | } |
662 | } |
|
|
663 | #endif |
574 | |
664 | |
575 | ev_tstamp inline_size |
665 | inline_size ev_tstamp |
576 | get_clock (void) |
666 | get_clock (void) |
577 | { |
667 | { |
578 | #if EV_USE_MONOTONIC |
668 | #if EV_USE_MONOTONIC |
579 | if (expect_true (have_monotonic)) |
669 | if (expect_true (have_monotonic)) |
580 | { |
670 | { |
… | |
… | |
614 | |
704 | |
615 | tv.tv_sec = (time_t)delay; |
705 | tv.tv_sec = (time_t)delay; |
616 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
706 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
617 | |
707 | |
618 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
708 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
619 | /* somehting nto guaranteed by newer posix versions, but guaranteed */ |
709 | /* something not guaranteed by newer posix versions, but guaranteed */ |
620 | /* by older ones */ |
710 | /* by older ones */ |
621 | select (0, 0, 0, 0, &tv); |
711 | select (0, 0, 0, 0, &tv); |
622 | #endif |
712 | #endif |
623 | } |
713 | } |
624 | } |
714 | } |
625 | |
715 | |
626 | /*****************************************************************************/ |
716 | /*****************************************************************************/ |
627 | |
717 | |
628 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
718 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
629 | |
719 | |
630 | int inline_size |
720 | /* find a suitable new size for the given array, */ |
|
|
721 | /* hopefully by rounding to a ncie-to-malloc size */ |
|
|
722 | inline_size int |
631 | array_nextsize (int elem, int cur, int cnt) |
723 | array_nextsize (int elem, int cur, int cnt) |
632 | { |
724 | { |
633 | int ncur = cur + 1; |
725 | int ncur = cur + 1; |
634 | |
726 | |
635 | do |
727 | do |
… | |
… | |
680 | #define array_free(stem, idx) \ |
772 | #define array_free(stem, idx) \ |
681 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
773 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
682 | |
774 | |
683 | /*****************************************************************************/ |
775 | /*****************************************************************************/ |
684 | |
776 | |
|
|
777 | /* dummy callback for pending events */ |
|
|
778 | static void noinline |
|
|
779 | pendingcb (EV_P_ ev_prepare *w, int revents) |
|
|
780 | { |
|
|
781 | } |
|
|
782 | |
685 | void noinline |
783 | void noinline |
686 | ev_feed_event (EV_P_ void *w, int revents) |
784 | ev_feed_event (EV_P_ void *w, int revents) |
687 | { |
785 | { |
688 | W w_ = (W)w; |
786 | W w_ = (W)w; |
689 | int pri = ABSPRI (w_); |
787 | int pri = ABSPRI (w_); |
… | |
… | |
697 | pendings [pri][w_->pending - 1].w = w_; |
795 | pendings [pri][w_->pending - 1].w = w_; |
698 | pendings [pri][w_->pending - 1].events = revents; |
796 | pendings [pri][w_->pending - 1].events = revents; |
699 | } |
797 | } |
700 | } |
798 | } |
701 | |
799 | |
702 | void inline_speed |
800 | inline_speed void |
|
|
801 | feed_reverse (EV_P_ W w) |
|
|
802 | { |
|
|
803 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
|
|
804 | rfeeds [rfeedcnt++] = w; |
|
|
805 | } |
|
|
806 | |
|
|
807 | inline_size void |
|
|
808 | feed_reverse_done (EV_P_ int revents) |
|
|
809 | { |
|
|
810 | do |
|
|
811 | ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents); |
|
|
812 | while (rfeedcnt); |
|
|
813 | } |
|
|
814 | |
|
|
815 | inline_speed void |
703 | queue_events (EV_P_ W *events, int eventcnt, int type) |
816 | queue_events (EV_P_ W *events, int eventcnt, int type) |
704 | { |
817 | { |
705 | int i; |
818 | int i; |
706 | |
819 | |
707 | for (i = 0; i < eventcnt; ++i) |
820 | for (i = 0; i < eventcnt; ++i) |
708 | ev_feed_event (EV_A_ events [i], type); |
821 | ev_feed_event (EV_A_ events [i], type); |
709 | } |
822 | } |
710 | |
823 | |
711 | /*****************************************************************************/ |
824 | /*****************************************************************************/ |
712 | |
825 | |
713 | void inline_speed |
826 | inline_speed void |
714 | fd_event (EV_P_ int fd, int revents) |
827 | fd_event_nc (EV_P_ int fd, int revents) |
715 | { |
828 | { |
716 | ANFD *anfd = anfds + fd; |
829 | ANFD *anfd = anfds + fd; |
717 | ev_io *w; |
830 | ev_io *w; |
718 | |
831 | |
719 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
832 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
723 | if (ev) |
836 | if (ev) |
724 | ev_feed_event (EV_A_ (W)w, ev); |
837 | ev_feed_event (EV_A_ (W)w, ev); |
725 | } |
838 | } |
726 | } |
839 | } |
727 | |
840 | |
|
|
841 | /* do not submit kernel events for fds that have reify set */ |
|
|
842 | /* because that means they changed while we were polling for new events */ |
|
|
843 | inline_speed void |
|
|
844 | fd_event (EV_P_ int fd, int revents) |
|
|
845 | { |
|
|
846 | ANFD *anfd = anfds + fd; |
|
|
847 | |
|
|
848 | if (expect_true (!anfd->reify)) |
|
|
849 | fd_event_nc (EV_A_ fd, revents); |
|
|
850 | } |
|
|
851 | |
728 | void |
852 | void |
729 | ev_feed_fd_event (EV_P_ int fd, int revents) |
853 | ev_feed_fd_event (EV_P_ int fd, int revents) |
730 | { |
854 | { |
731 | if (fd >= 0 && fd < anfdmax) |
855 | if (fd >= 0 && fd < anfdmax) |
732 | fd_event (EV_A_ fd, revents); |
856 | fd_event_nc (EV_A_ fd, revents); |
733 | } |
857 | } |
734 | |
858 | |
735 | void inline_size |
859 | /* make sure the external fd watch events are in-sync */ |
|
|
860 | /* with the kernel/libev internal state */ |
|
|
861 | inline_size void |
736 | fd_reify (EV_P) |
862 | fd_reify (EV_P) |
737 | { |
863 | { |
738 | int i; |
864 | int i; |
739 | |
865 | |
740 | for (i = 0; i < fdchangecnt; ++i) |
866 | for (i = 0; i < fdchangecnt; ++i) |
… | |
… | |
774 | } |
900 | } |
775 | |
901 | |
776 | fdchangecnt = 0; |
902 | fdchangecnt = 0; |
777 | } |
903 | } |
778 | |
904 | |
779 | void inline_size |
905 | /* something about the given fd changed */ |
|
|
906 | inline_size void |
780 | fd_change (EV_P_ int fd, int flags) |
907 | fd_change (EV_P_ int fd, int flags) |
781 | { |
908 | { |
782 | unsigned char reify = anfds [fd].reify; |
909 | unsigned char reify = anfds [fd].reify; |
783 | anfds [fd].reify |= flags; |
910 | anfds [fd].reify |= flags; |
784 | |
911 | |
… | |
… | |
788 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
915 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
789 | fdchanges [fdchangecnt - 1] = fd; |
916 | fdchanges [fdchangecnt - 1] = fd; |
790 | } |
917 | } |
791 | } |
918 | } |
792 | |
919 | |
793 | void inline_speed |
920 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
|
|
921 | inline_speed void |
794 | fd_kill (EV_P_ int fd) |
922 | fd_kill (EV_P_ int fd) |
795 | { |
923 | { |
796 | ev_io *w; |
924 | ev_io *w; |
797 | |
925 | |
798 | while ((w = (ev_io *)anfds [fd].head)) |
926 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
800 | ev_io_stop (EV_A_ w); |
928 | ev_io_stop (EV_A_ w); |
801 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
929 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
802 | } |
930 | } |
803 | } |
931 | } |
804 | |
932 | |
805 | int inline_size |
933 | /* check whether the given fd is atcually valid, for error recovery */ |
|
|
934 | inline_size int |
806 | fd_valid (int fd) |
935 | fd_valid (int fd) |
807 | { |
936 | { |
808 | #ifdef _WIN32 |
937 | #ifdef _WIN32 |
809 | return _get_osfhandle (fd) != -1; |
938 | return _get_osfhandle (fd) != -1; |
810 | #else |
939 | #else |
… | |
… | |
832 | |
961 | |
833 | for (fd = anfdmax; fd--; ) |
962 | for (fd = anfdmax; fd--; ) |
834 | if (anfds [fd].events) |
963 | if (anfds [fd].events) |
835 | { |
964 | { |
836 | fd_kill (EV_A_ fd); |
965 | fd_kill (EV_A_ fd); |
837 | return; |
966 | break; |
838 | } |
967 | } |
839 | } |
968 | } |
840 | |
969 | |
841 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
970 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
842 | static void noinline |
971 | static void noinline |
… | |
… | |
847 | for (fd = 0; fd < anfdmax; ++fd) |
976 | for (fd = 0; fd < anfdmax; ++fd) |
848 | if (anfds [fd].events) |
977 | if (anfds [fd].events) |
849 | { |
978 | { |
850 | anfds [fd].events = 0; |
979 | anfds [fd].events = 0; |
851 | anfds [fd].emask = 0; |
980 | anfds [fd].emask = 0; |
852 | fd_change (EV_A_ fd, EV__IOFDSET | 1); |
981 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
853 | } |
982 | } |
854 | } |
983 | } |
855 | |
984 | |
856 | /*****************************************************************************/ |
985 | /*****************************************************************************/ |
857 | |
986 | |
… | |
… | |
873 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
1002 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
874 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
1003 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
875 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
1004 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
876 | |
1005 | |
877 | /* away from the root */ |
1006 | /* away from the root */ |
878 | void inline_speed |
1007 | inline_speed void |
879 | downheap (ANHE *heap, int N, int k) |
1008 | downheap (ANHE *heap, int N, int k) |
880 | { |
1009 | { |
881 | ANHE he = heap [k]; |
1010 | ANHE he = heap [k]; |
882 | ANHE *E = heap + N + HEAP0; |
1011 | ANHE *E = heap + N + HEAP0; |
883 | |
1012 | |
… | |
… | |
923 | #define HEAP0 1 |
1052 | #define HEAP0 1 |
924 | #define HPARENT(k) ((k) >> 1) |
1053 | #define HPARENT(k) ((k) >> 1) |
925 | #define UPHEAP_DONE(p,k) (!(p)) |
1054 | #define UPHEAP_DONE(p,k) (!(p)) |
926 | |
1055 | |
927 | /* away from the root */ |
1056 | /* away from the root */ |
928 | void inline_speed |
1057 | inline_speed void |
929 | downheap (ANHE *heap, int N, int k) |
1058 | downheap (ANHE *heap, int N, int k) |
930 | { |
1059 | { |
931 | ANHE he = heap [k]; |
1060 | ANHE he = heap [k]; |
932 | |
1061 | |
933 | for (;;) |
1062 | for (;;) |
934 | { |
1063 | { |
935 | int c = k << 1; |
1064 | int c = k << 1; |
936 | |
1065 | |
937 | if (c > N + HEAP0 - 1) |
1066 | if (c >= N + HEAP0) |
938 | break; |
1067 | break; |
939 | |
1068 | |
940 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
1069 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
941 | ? 1 : 0; |
1070 | ? 1 : 0; |
942 | |
1071 | |
… | |
… | |
953 | ev_active (ANHE_w (he)) = k; |
1082 | ev_active (ANHE_w (he)) = k; |
954 | } |
1083 | } |
955 | #endif |
1084 | #endif |
956 | |
1085 | |
957 | /* towards the root */ |
1086 | /* towards the root */ |
958 | void inline_speed |
1087 | inline_speed void |
959 | upheap (ANHE *heap, int k) |
1088 | upheap (ANHE *heap, int k) |
960 | { |
1089 | { |
961 | ANHE he = heap [k]; |
1090 | ANHE he = heap [k]; |
962 | |
1091 | |
963 | for (;;) |
1092 | for (;;) |
… | |
… | |
974 | |
1103 | |
975 | heap [k] = he; |
1104 | heap [k] = he; |
976 | ev_active (ANHE_w (he)) = k; |
1105 | ev_active (ANHE_w (he)) = k; |
977 | } |
1106 | } |
978 | |
1107 | |
979 | void inline_size |
1108 | /* move an element suitably so it is in a correct place */ |
|
|
1109 | inline_size void |
980 | adjustheap (ANHE *heap, int N, int k) |
1110 | adjustheap (ANHE *heap, int N, int k) |
981 | { |
1111 | { |
982 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
1112 | if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)])) |
983 | upheap (heap, k); |
1113 | upheap (heap, k); |
984 | else |
1114 | else |
985 | downheap (heap, N, k); |
1115 | downheap (heap, N, k); |
986 | } |
1116 | } |
987 | |
1117 | |
988 | /* rebuild the heap: this function is used only once and executed rarely */ |
1118 | /* rebuild the heap: this function is used only once and executed rarely */ |
989 | void inline_size |
1119 | inline_size void |
990 | reheap (ANHE *heap, int N) |
1120 | reheap (ANHE *heap, int N) |
991 | { |
1121 | { |
992 | int i; |
1122 | int i; |
993 | |
1123 | |
994 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
1124 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
… | |
… | |
997 | upheap (heap, i + HEAP0); |
1127 | upheap (heap, i + HEAP0); |
998 | } |
1128 | } |
999 | |
1129 | |
1000 | /*****************************************************************************/ |
1130 | /*****************************************************************************/ |
1001 | |
1131 | |
|
|
1132 | /* associate signal watchers to a signal signal */ |
1002 | typedef struct |
1133 | typedef struct |
1003 | { |
1134 | { |
|
|
1135 | EV_ATOMIC_T pending; |
|
|
1136 | #if EV_MULTIPLICITY |
|
|
1137 | EV_P; |
|
|
1138 | #endif |
1004 | WL head; |
1139 | WL head; |
1005 | EV_ATOMIC_T gotsig; |
|
|
1006 | } ANSIG; |
1140 | } ANSIG; |
1007 | |
1141 | |
1008 | static ANSIG *signals; |
1142 | static ANSIG signals [EV_NSIG - 1]; |
1009 | static int signalmax; |
|
|
1010 | |
|
|
1011 | static EV_ATOMIC_T gotsig; |
|
|
1012 | |
1143 | |
1013 | /*****************************************************************************/ |
1144 | /*****************************************************************************/ |
1014 | |
1145 | |
1015 | void inline_speed |
1146 | /* used to prepare libev internal fd's */ |
|
|
1147 | /* this is not fork-safe */ |
|
|
1148 | inline_speed void |
1016 | fd_intern (int fd) |
1149 | fd_intern (int fd) |
1017 | { |
1150 | { |
1018 | #ifdef _WIN32 |
1151 | #ifdef _WIN32 |
1019 | unsigned long arg = 1; |
1152 | unsigned long arg = 1; |
1020 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
1153 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
… | |
… | |
1025 | } |
1158 | } |
1026 | |
1159 | |
1027 | static void noinline |
1160 | static void noinline |
1028 | evpipe_init (EV_P) |
1161 | evpipe_init (EV_P) |
1029 | { |
1162 | { |
1030 | if (!ev_is_active (&pipeev)) |
1163 | if (!ev_is_active (&pipe_w)) |
1031 | { |
1164 | { |
1032 | #if EV_USE_EVENTFD |
1165 | #if EV_USE_EVENTFD |
|
|
1166 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
|
|
1167 | if (evfd < 0 && errno == EINVAL) |
1033 | if ((evfd = eventfd (0, 0)) >= 0) |
1168 | evfd = eventfd (0, 0); |
|
|
1169 | |
|
|
1170 | if (evfd >= 0) |
1034 | { |
1171 | { |
1035 | evpipe [0] = -1; |
1172 | evpipe [0] = -1; |
1036 | fd_intern (evfd); |
1173 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
1037 | ev_io_set (&pipeev, evfd, EV_READ); |
1174 | ev_io_set (&pipe_w, evfd, EV_READ); |
1038 | } |
1175 | } |
1039 | else |
1176 | else |
1040 | #endif |
1177 | #endif |
1041 | { |
1178 | { |
1042 | while (pipe (evpipe)) |
1179 | while (pipe (evpipe)) |
1043 | ev_syserr ("(libev) error creating signal/async pipe"); |
1180 | ev_syserr ("(libev) error creating signal/async pipe"); |
1044 | |
1181 | |
1045 | fd_intern (evpipe [0]); |
1182 | fd_intern (evpipe [0]); |
1046 | fd_intern (evpipe [1]); |
1183 | fd_intern (evpipe [1]); |
1047 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
1184 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
1048 | } |
1185 | } |
1049 | |
1186 | |
1050 | ev_io_start (EV_A_ &pipeev); |
1187 | ev_io_start (EV_A_ &pipe_w); |
1051 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1188 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1052 | } |
1189 | } |
1053 | } |
1190 | } |
1054 | |
1191 | |
1055 | void inline_size |
1192 | inline_size void |
1056 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1193 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1057 | { |
1194 | { |
1058 | if (!*flag) |
1195 | if (!*flag) |
1059 | { |
1196 | { |
1060 | int old_errno = errno; /* save errno because write might clobber it */ |
1197 | int old_errno = errno; /* save errno because write might clobber it */ |
… | |
… | |
1073 | |
1210 | |
1074 | errno = old_errno; |
1211 | errno = old_errno; |
1075 | } |
1212 | } |
1076 | } |
1213 | } |
1077 | |
1214 | |
|
|
1215 | /* called whenever the libev signal pipe */ |
|
|
1216 | /* got some events (signal, async) */ |
1078 | static void |
1217 | static void |
1079 | pipecb (EV_P_ ev_io *iow, int revents) |
1218 | pipecb (EV_P_ ev_io *iow, int revents) |
1080 | { |
1219 | { |
|
|
1220 | int i; |
|
|
1221 | |
1081 | #if EV_USE_EVENTFD |
1222 | #if EV_USE_EVENTFD |
1082 | if (evfd >= 0) |
1223 | if (evfd >= 0) |
1083 | { |
1224 | { |
1084 | uint64_t counter; |
1225 | uint64_t counter; |
1085 | read (evfd, &counter, sizeof (uint64_t)); |
1226 | read (evfd, &counter, sizeof (uint64_t)); |
… | |
… | |
1089 | { |
1230 | { |
1090 | char dummy; |
1231 | char dummy; |
1091 | read (evpipe [0], &dummy, 1); |
1232 | read (evpipe [0], &dummy, 1); |
1092 | } |
1233 | } |
1093 | |
1234 | |
1094 | if (gotsig && ev_is_default_loop (EV_A)) |
1235 | if (sig_pending) |
1095 | { |
1236 | { |
1096 | int signum; |
1237 | sig_pending = 0; |
1097 | gotsig = 0; |
|
|
1098 | |
1238 | |
1099 | for (signum = signalmax; signum--; ) |
1239 | for (i = EV_NSIG - 1; i--; ) |
1100 | if (signals [signum].gotsig) |
1240 | if (expect_false (signals [i].pending)) |
1101 | ev_feed_signal_event (EV_A_ signum + 1); |
1241 | ev_feed_signal_event (EV_A_ i + 1); |
1102 | } |
1242 | } |
1103 | |
1243 | |
1104 | #if EV_ASYNC_ENABLE |
1244 | #if EV_ASYNC_ENABLE |
1105 | if (gotasync) |
1245 | if (async_pending) |
1106 | { |
1246 | { |
1107 | int i; |
1247 | async_pending = 0; |
1108 | gotasync = 0; |
|
|
1109 | |
1248 | |
1110 | for (i = asynccnt; i--; ) |
1249 | for (i = asynccnt; i--; ) |
1111 | if (asyncs [i]->sent) |
1250 | if (asyncs [i]->sent) |
1112 | { |
1251 | { |
1113 | asyncs [i]->sent = 0; |
1252 | asyncs [i]->sent = 0; |
… | |
… | |
1121 | |
1260 | |
1122 | static void |
1261 | static void |
1123 | ev_sighandler (int signum) |
1262 | ev_sighandler (int signum) |
1124 | { |
1263 | { |
1125 | #if EV_MULTIPLICITY |
1264 | #if EV_MULTIPLICITY |
1126 | struct ev_loop *loop = &default_loop_struct; |
1265 | EV_P = signals [signum - 1].loop; |
1127 | #endif |
1266 | #endif |
1128 | |
1267 | |
1129 | #if _WIN32 |
1268 | #if _WIN32 |
1130 | signal (signum, ev_sighandler); |
1269 | signal (signum, ev_sighandler); |
1131 | #endif |
1270 | #endif |
1132 | |
1271 | |
1133 | signals [signum - 1].gotsig = 1; |
1272 | signals [signum - 1].pending = 1; |
1134 | evpipe_write (EV_A_ &gotsig); |
1273 | evpipe_write (EV_A_ &sig_pending); |
1135 | } |
1274 | } |
1136 | |
1275 | |
1137 | void noinline |
1276 | void noinline |
1138 | ev_feed_signal_event (EV_P_ int signum) |
1277 | ev_feed_signal_event (EV_P_ int signum) |
1139 | { |
1278 | { |
1140 | WL w; |
1279 | WL w; |
1141 | |
1280 | |
|
|
1281 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
|
|
1282 | return; |
|
|
1283 | |
|
|
1284 | --signum; |
|
|
1285 | |
1142 | #if EV_MULTIPLICITY |
1286 | #if EV_MULTIPLICITY |
1143 | assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1287 | /* it is permissible to try to feed a signal to the wrong loop */ |
1144 | #endif |
1288 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
1145 | |
1289 | |
1146 | --signum; |
1290 | if (expect_false (signals [signum].loop != EV_A)) |
1147 | |
|
|
1148 | if (signum < 0 || signum >= signalmax) |
|
|
1149 | return; |
1291 | return; |
|
|
1292 | #endif |
1150 | |
1293 | |
1151 | signals [signum].gotsig = 0; |
1294 | signals [signum].pending = 0; |
1152 | |
1295 | |
1153 | for (w = signals [signum].head; w; w = w->next) |
1296 | for (w = signals [signum].head; w; w = w->next) |
1154 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1297 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1155 | } |
1298 | } |
1156 | |
1299 | |
|
|
1300 | #if EV_USE_SIGNALFD |
|
|
1301 | static void |
|
|
1302 | sigfdcb (EV_P_ ev_io *iow, int revents) |
|
|
1303 | { |
|
|
1304 | struct signalfd_siginfo si[2], *sip; /* these structs are big */ |
|
|
1305 | |
|
|
1306 | for (;;) |
|
|
1307 | { |
|
|
1308 | ssize_t res = read (sigfd, si, sizeof (si)); |
|
|
1309 | |
|
|
1310 | /* not ISO-C, as res might be -1, but works with SuS */ |
|
|
1311 | for (sip = si; (char *)sip < (char *)si + res; ++sip) |
|
|
1312 | ev_feed_signal_event (EV_A_ sip->ssi_signo); |
|
|
1313 | |
|
|
1314 | if (res < (ssize_t)sizeof (si)) |
|
|
1315 | break; |
|
|
1316 | } |
|
|
1317 | } |
|
|
1318 | #endif |
|
|
1319 | |
1157 | /*****************************************************************************/ |
1320 | /*****************************************************************************/ |
1158 | |
1321 | |
1159 | static WL childs [EV_PID_HASHSIZE]; |
1322 | static WL childs [EV_PID_HASHSIZE]; |
1160 | |
1323 | |
1161 | #ifndef _WIN32 |
1324 | #ifndef _WIN32 |
… | |
… | |
1164 | |
1327 | |
1165 | #ifndef WIFCONTINUED |
1328 | #ifndef WIFCONTINUED |
1166 | # define WIFCONTINUED(status) 0 |
1329 | # define WIFCONTINUED(status) 0 |
1167 | #endif |
1330 | #endif |
1168 | |
1331 | |
1169 | void inline_speed |
1332 | /* handle a single child status event */ |
|
|
1333 | inline_speed void |
1170 | child_reap (EV_P_ int chain, int pid, int status) |
1334 | child_reap (EV_P_ int chain, int pid, int status) |
1171 | { |
1335 | { |
1172 | ev_child *w; |
1336 | ev_child *w; |
1173 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1337 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1174 | |
1338 | |
… | |
… | |
1187 | |
1351 | |
1188 | #ifndef WCONTINUED |
1352 | #ifndef WCONTINUED |
1189 | # define WCONTINUED 0 |
1353 | # define WCONTINUED 0 |
1190 | #endif |
1354 | #endif |
1191 | |
1355 | |
|
|
1356 | /* called on sigchld etc., calls waitpid */ |
1192 | static void |
1357 | static void |
1193 | childcb (EV_P_ ev_signal *sw, int revents) |
1358 | childcb (EV_P_ ev_signal *sw, int revents) |
1194 | { |
1359 | { |
1195 | int pid, status; |
1360 | int pid, status; |
1196 | |
1361 | |
… | |
… | |
1303 | ev_backend (EV_P) |
1468 | ev_backend (EV_P) |
1304 | { |
1469 | { |
1305 | return backend; |
1470 | return backend; |
1306 | } |
1471 | } |
1307 | |
1472 | |
|
|
1473 | #if EV_MINIMAL < 2 |
1308 | unsigned int |
1474 | unsigned int |
1309 | ev_loop_count (EV_P) |
1475 | ev_loop_count (EV_P) |
1310 | { |
1476 | { |
1311 | return loop_count; |
1477 | return loop_count; |
1312 | } |
1478 | } |
1313 | |
1479 | |
|
|
1480 | unsigned int |
|
|
1481 | ev_loop_depth (EV_P) |
|
|
1482 | { |
|
|
1483 | return loop_depth; |
|
|
1484 | } |
|
|
1485 | |
1314 | void |
1486 | void |
1315 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1487 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1316 | { |
1488 | { |
1317 | io_blocktime = interval; |
1489 | io_blocktime = interval; |
1318 | } |
1490 | } |
… | |
… | |
1321 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1493 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1322 | { |
1494 | { |
1323 | timeout_blocktime = interval; |
1495 | timeout_blocktime = interval; |
1324 | } |
1496 | } |
1325 | |
1497 | |
|
|
1498 | void |
|
|
1499 | ev_set_userdata (EV_P_ void *data) |
|
|
1500 | { |
|
|
1501 | userdata = data; |
|
|
1502 | } |
|
|
1503 | |
|
|
1504 | void * |
|
|
1505 | ev_userdata (EV_P) |
|
|
1506 | { |
|
|
1507 | return userdata; |
|
|
1508 | } |
|
|
1509 | |
|
|
1510 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
|
|
1511 | { |
|
|
1512 | invoke_cb = invoke_pending_cb; |
|
|
1513 | } |
|
|
1514 | |
|
|
1515 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
|
|
1516 | { |
|
|
1517 | release_cb = release; |
|
|
1518 | acquire_cb = acquire; |
|
|
1519 | } |
|
|
1520 | #endif |
|
|
1521 | |
|
|
1522 | /* initialise a loop structure, must be zero-initialised */ |
1326 | static void noinline |
1523 | static void noinline |
1327 | loop_init (EV_P_ unsigned int flags) |
1524 | loop_init (EV_P_ unsigned int flags) |
1328 | { |
1525 | { |
1329 | if (!backend) |
1526 | if (!backend) |
1330 | { |
1527 | { |
… | |
… | |
1346 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1543 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1347 | have_monotonic = 1; |
1544 | have_monotonic = 1; |
1348 | } |
1545 | } |
1349 | #endif |
1546 | #endif |
1350 | |
1547 | |
|
|
1548 | /* pid check not overridable via env */ |
|
|
1549 | #ifndef _WIN32 |
|
|
1550 | if (flags & EVFLAG_FORKCHECK) |
|
|
1551 | curpid = getpid (); |
|
|
1552 | #endif |
|
|
1553 | |
|
|
1554 | if (!(flags & EVFLAG_NOENV) |
|
|
1555 | && !enable_secure () |
|
|
1556 | && getenv ("LIBEV_FLAGS")) |
|
|
1557 | flags = atoi (getenv ("LIBEV_FLAGS")); |
|
|
1558 | |
1351 | ev_rt_now = ev_time (); |
1559 | ev_rt_now = ev_time (); |
1352 | mn_now = get_clock (); |
1560 | mn_now = get_clock (); |
1353 | now_floor = mn_now; |
1561 | now_floor = mn_now; |
1354 | rtmn_diff = ev_rt_now - mn_now; |
1562 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1563 | #if EV_MINIMAL < 2 |
|
|
1564 | invoke_cb = ev_invoke_pending; |
|
|
1565 | #endif |
1355 | |
1566 | |
1356 | io_blocktime = 0.; |
1567 | io_blocktime = 0.; |
1357 | timeout_blocktime = 0.; |
1568 | timeout_blocktime = 0.; |
1358 | backend = 0; |
1569 | backend = 0; |
1359 | backend_fd = -1; |
1570 | backend_fd = -1; |
1360 | gotasync = 0; |
1571 | sig_pending = 0; |
|
|
1572 | #if EV_ASYNC_ENABLE |
|
|
1573 | async_pending = 0; |
|
|
1574 | #endif |
1361 | #if EV_USE_INOTIFY |
1575 | #if EV_USE_INOTIFY |
1362 | fs_fd = -2; |
1576 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1363 | #endif |
1577 | #endif |
1364 | |
1578 | #if EV_USE_SIGNALFD |
1365 | /* pid check not overridable via env */ |
1579 | sigfd = flags & EVFLAG_NOSIGFD ? -1 : -2; |
1366 | #ifndef _WIN32 |
|
|
1367 | if (flags & EVFLAG_FORKCHECK) |
|
|
1368 | curpid = getpid (); |
|
|
1369 | #endif |
1580 | #endif |
1370 | |
|
|
1371 | if (!(flags & EVFLAG_NOENV) |
|
|
1372 | && !enable_secure () |
|
|
1373 | && getenv ("LIBEV_FLAGS")) |
|
|
1374 | flags = atoi (getenv ("LIBEV_FLAGS")); |
|
|
1375 | |
1581 | |
1376 | if (!(flags & 0x0000ffffU)) |
1582 | if (!(flags & 0x0000ffffU)) |
1377 | flags |= ev_recommended_backends (); |
1583 | flags |= ev_recommended_backends (); |
1378 | |
1584 | |
1379 | #if EV_USE_PORT |
1585 | #if EV_USE_PORT |
… | |
… | |
1390 | #endif |
1596 | #endif |
1391 | #if EV_USE_SELECT |
1597 | #if EV_USE_SELECT |
1392 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1598 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1393 | #endif |
1599 | #endif |
1394 | |
1600 | |
|
|
1601 | ev_prepare_init (&pending_w, pendingcb); |
|
|
1602 | |
1395 | ev_init (&pipeev, pipecb); |
1603 | ev_init (&pipe_w, pipecb); |
1396 | ev_set_priority (&pipeev, EV_MAXPRI); |
1604 | ev_set_priority (&pipe_w, EV_MAXPRI); |
1397 | } |
1605 | } |
1398 | } |
1606 | } |
1399 | |
1607 | |
|
|
1608 | /* free up a loop structure */ |
1400 | static void noinline |
1609 | static void noinline |
1401 | loop_destroy (EV_P) |
1610 | loop_destroy (EV_P) |
1402 | { |
1611 | { |
1403 | int i; |
1612 | int i; |
1404 | |
1613 | |
1405 | if (ev_is_active (&pipeev)) |
1614 | if (ev_is_active (&pipe_w)) |
1406 | { |
1615 | { |
1407 | ev_ref (EV_A); /* signal watcher */ |
1616 | /*ev_ref (EV_A);*/ |
1408 | ev_io_stop (EV_A_ &pipeev); |
1617 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1409 | |
1618 | |
1410 | #if EV_USE_EVENTFD |
1619 | #if EV_USE_EVENTFD |
1411 | if (evfd >= 0) |
1620 | if (evfd >= 0) |
1412 | close (evfd); |
1621 | close (evfd); |
1413 | #endif |
1622 | #endif |
… | |
… | |
1417 | close (evpipe [0]); |
1626 | close (evpipe [0]); |
1418 | close (evpipe [1]); |
1627 | close (evpipe [1]); |
1419 | } |
1628 | } |
1420 | } |
1629 | } |
1421 | |
1630 | |
|
|
1631 | #if EV_USE_SIGNALFD |
|
|
1632 | if (ev_is_active (&sigfd_w)) |
|
|
1633 | { |
|
|
1634 | /*ev_ref (EV_A);*/ |
|
|
1635 | /*ev_io_stop (EV_A_ &sigfd_w);*/ |
|
|
1636 | |
|
|
1637 | close (sigfd); |
|
|
1638 | } |
|
|
1639 | #endif |
|
|
1640 | |
1422 | #if EV_USE_INOTIFY |
1641 | #if EV_USE_INOTIFY |
1423 | if (fs_fd >= 0) |
1642 | if (fs_fd >= 0) |
1424 | close (fs_fd); |
1643 | close (fs_fd); |
1425 | #endif |
1644 | #endif |
1426 | |
1645 | |
… | |
… | |
1449 | #if EV_IDLE_ENABLE |
1668 | #if EV_IDLE_ENABLE |
1450 | array_free (idle, [i]); |
1669 | array_free (idle, [i]); |
1451 | #endif |
1670 | #endif |
1452 | } |
1671 | } |
1453 | |
1672 | |
1454 | ev_free (anfds); anfdmax = 0; |
1673 | ev_free (anfds); anfds = 0; anfdmax = 0; |
1455 | |
1674 | |
1456 | /* have to use the microsoft-never-gets-it-right macro */ |
1675 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
1676 | array_free (rfeed, EMPTY); |
1457 | array_free (fdchange, EMPTY); |
1677 | array_free (fdchange, EMPTY); |
1458 | array_free (timer, EMPTY); |
1678 | array_free (timer, EMPTY); |
1459 | #if EV_PERIODIC_ENABLE |
1679 | #if EV_PERIODIC_ENABLE |
1460 | array_free (periodic, EMPTY); |
1680 | array_free (periodic, EMPTY); |
1461 | #endif |
1681 | #endif |
… | |
… | |
1470 | |
1690 | |
1471 | backend = 0; |
1691 | backend = 0; |
1472 | } |
1692 | } |
1473 | |
1693 | |
1474 | #if EV_USE_INOTIFY |
1694 | #if EV_USE_INOTIFY |
1475 | void inline_size infy_fork (EV_P); |
1695 | inline_size void infy_fork (EV_P); |
1476 | #endif |
1696 | #endif |
1477 | |
1697 | |
1478 | void inline_size |
1698 | inline_size void |
1479 | loop_fork (EV_P) |
1699 | loop_fork (EV_P) |
1480 | { |
1700 | { |
1481 | #if EV_USE_PORT |
1701 | #if EV_USE_PORT |
1482 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1702 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1483 | #endif |
1703 | #endif |
… | |
… | |
1489 | #endif |
1709 | #endif |
1490 | #if EV_USE_INOTIFY |
1710 | #if EV_USE_INOTIFY |
1491 | infy_fork (EV_A); |
1711 | infy_fork (EV_A); |
1492 | #endif |
1712 | #endif |
1493 | |
1713 | |
1494 | if (ev_is_active (&pipeev)) |
1714 | if (ev_is_active (&pipe_w)) |
1495 | { |
1715 | { |
1496 | /* this "locks" the handlers against writing to the pipe */ |
1716 | /* this "locks" the handlers against writing to the pipe */ |
1497 | /* while we modify the fd vars */ |
1717 | /* while we modify the fd vars */ |
1498 | gotsig = 1; |
1718 | sig_pending = 1; |
1499 | #if EV_ASYNC_ENABLE |
1719 | #if EV_ASYNC_ENABLE |
1500 | gotasync = 1; |
1720 | async_pending = 1; |
1501 | #endif |
1721 | #endif |
1502 | |
1722 | |
1503 | ev_ref (EV_A); |
1723 | ev_ref (EV_A); |
1504 | ev_io_stop (EV_A_ &pipeev); |
1724 | ev_io_stop (EV_A_ &pipe_w); |
1505 | |
1725 | |
1506 | #if EV_USE_EVENTFD |
1726 | #if EV_USE_EVENTFD |
1507 | if (evfd >= 0) |
1727 | if (evfd >= 0) |
1508 | close (evfd); |
1728 | close (evfd); |
1509 | #endif |
1729 | #endif |
… | |
… | |
1514 | close (evpipe [1]); |
1734 | close (evpipe [1]); |
1515 | } |
1735 | } |
1516 | |
1736 | |
1517 | evpipe_init (EV_A); |
1737 | evpipe_init (EV_A); |
1518 | /* now iterate over everything, in case we missed something */ |
1738 | /* now iterate over everything, in case we missed something */ |
1519 | pipecb (EV_A_ &pipeev, EV_READ); |
1739 | pipecb (EV_A_ &pipe_w, EV_READ); |
1520 | } |
1740 | } |
1521 | |
1741 | |
1522 | postfork = 0; |
1742 | postfork = 0; |
1523 | } |
1743 | } |
1524 | |
1744 | |
1525 | #if EV_MULTIPLICITY |
1745 | #if EV_MULTIPLICITY |
1526 | |
1746 | |
1527 | struct ev_loop * |
1747 | struct ev_loop * |
1528 | ev_loop_new (unsigned int flags) |
1748 | ev_loop_new (unsigned int flags) |
1529 | { |
1749 | { |
1530 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1750 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1531 | |
1751 | |
1532 | memset (loop, 0, sizeof (struct ev_loop)); |
1752 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1533 | |
|
|
1534 | loop_init (EV_A_ flags); |
1753 | loop_init (EV_A_ flags); |
1535 | |
1754 | |
1536 | if (ev_backend (EV_A)) |
1755 | if (ev_backend (EV_A)) |
1537 | return loop; |
1756 | return EV_A; |
1538 | |
1757 | |
1539 | return 0; |
1758 | return 0; |
1540 | } |
1759 | } |
1541 | |
1760 | |
1542 | void |
1761 | void |
… | |
… | |
1549 | void |
1768 | void |
1550 | ev_loop_fork (EV_P) |
1769 | ev_loop_fork (EV_P) |
1551 | { |
1770 | { |
1552 | postfork = 1; /* must be in line with ev_default_fork */ |
1771 | postfork = 1; /* must be in line with ev_default_fork */ |
1553 | } |
1772 | } |
|
|
1773 | #endif /* multiplicity */ |
1554 | |
1774 | |
1555 | #if EV_VERIFY |
1775 | #if EV_VERIFY |
1556 | static void noinline |
1776 | static void noinline |
1557 | verify_watcher (EV_P_ W w) |
1777 | verify_watcher (EV_P_ W w) |
1558 | { |
1778 | { |
… | |
… | |
1586 | verify_watcher (EV_A_ ws [cnt]); |
1806 | verify_watcher (EV_A_ ws [cnt]); |
1587 | } |
1807 | } |
1588 | } |
1808 | } |
1589 | #endif |
1809 | #endif |
1590 | |
1810 | |
|
|
1811 | #if EV_MINIMAL < 2 |
1591 | void |
1812 | void |
1592 | ev_loop_verify (EV_P) |
1813 | ev_loop_verify (EV_P) |
1593 | { |
1814 | { |
1594 | #if EV_VERIFY |
1815 | #if EV_VERIFY |
1595 | int i; |
1816 | int i; |
… | |
… | |
1644 | assert (checkmax >= checkcnt); |
1865 | assert (checkmax >= checkcnt); |
1645 | array_verify (EV_A_ (W *)checks, checkcnt); |
1866 | array_verify (EV_A_ (W *)checks, checkcnt); |
1646 | |
1867 | |
1647 | # if 0 |
1868 | # if 0 |
1648 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1869 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1649 | for (signum = signalmax; signum--; ) if (signals [signum].gotsig) |
1870 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
1650 | # endif |
1871 | # endif |
1651 | #endif |
1872 | #endif |
1652 | } |
1873 | } |
1653 | |
1874 | #endif |
1654 | #endif /* multiplicity */ |
|
|
1655 | |
1875 | |
1656 | #if EV_MULTIPLICITY |
1876 | #if EV_MULTIPLICITY |
1657 | struct ev_loop * |
1877 | struct ev_loop * |
1658 | ev_default_loop_init (unsigned int flags) |
1878 | ev_default_loop_init (unsigned int flags) |
1659 | #else |
1879 | #else |
… | |
… | |
1662 | #endif |
1882 | #endif |
1663 | { |
1883 | { |
1664 | if (!ev_default_loop_ptr) |
1884 | if (!ev_default_loop_ptr) |
1665 | { |
1885 | { |
1666 | #if EV_MULTIPLICITY |
1886 | #if EV_MULTIPLICITY |
1667 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1887 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
1668 | #else |
1888 | #else |
1669 | ev_default_loop_ptr = 1; |
1889 | ev_default_loop_ptr = 1; |
1670 | #endif |
1890 | #endif |
1671 | |
1891 | |
1672 | loop_init (EV_A_ flags); |
1892 | loop_init (EV_A_ flags); |
… | |
… | |
1689 | |
1909 | |
1690 | void |
1910 | void |
1691 | ev_default_destroy (void) |
1911 | ev_default_destroy (void) |
1692 | { |
1912 | { |
1693 | #if EV_MULTIPLICITY |
1913 | #if EV_MULTIPLICITY |
1694 | struct ev_loop *loop = ev_default_loop_ptr; |
1914 | EV_P = ev_default_loop_ptr; |
1695 | #endif |
1915 | #endif |
1696 | |
1916 | |
1697 | ev_default_loop_ptr = 0; |
1917 | ev_default_loop_ptr = 0; |
1698 | |
1918 | |
1699 | #ifndef _WIN32 |
1919 | #ifndef _WIN32 |
… | |
… | |
1706 | |
1926 | |
1707 | void |
1927 | void |
1708 | ev_default_fork (void) |
1928 | ev_default_fork (void) |
1709 | { |
1929 | { |
1710 | #if EV_MULTIPLICITY |
1930 | #if EV_MULTIPLICITY |
1711 | struct ev_loop *loop = ev_default_loop_ptr; |
1931 | EV_P = ev_default_loop_ptr; |
1712 | #endif |
1932 | #endif |
1713 | |
1933 | |
1714 | postfork = 1; /* must be in line with ev_loop_fork */ |
1934 | postfork = 1; /* must be in line with ev_loop_fork */ |
1715 | } |
1935 | } |
1716 | |
1936 | |
… | |
… | |
1720 | ev_invoke (EV_P_ void *w, int revents) |
1940 | ev_invoke (EV_P_ void *w, int revents) |
1721 | { |
1941 | { |
1722 | EV_CB_INVOKE ((W)w, revents); |
1942 | EV_CB_INVOKE ((W)w, revents); |
1723 | } |
1943 | } |
1724 | |
1944 | |
1725 | void inline_speed |
1945 | unsigned int |
1726 | call_pending (EV_P) |
1946 | ev_pending_count (EV_P) |
|
|
1947 | { |
|
|
1948 | int pri; |
|
|
1949 | unsigned int count = 0; |
|
|
1950 | |
|
|
1951 | for (pri = NUMPRI; pri--; ) |
|
|
1952 | count += pendingcnt [pri]; |
|
|
1953 | |
|
|
1954 | return count; |
|
|
1955 | } |
|
|
1956 | |
|
|
1957 | void noinline |
|
|
1958 | ev_invoke_pending (EV_P) |
1727 | { |
1959 | { |
1728 | int pri; |
1960 | int pri; |
1729 | |
1961 | |
1730 | for (pri = NUMPRI; pri--; ) |
1962 | for (pri = NUMPRI; pri--; ) |
1731 | while (pendingcnt [pri]) |
1963 | while (pendingcnt [pri]) |
1732 | { |
1964 | { |
1733 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1965 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1734 | |
1966 | |
1735 | if (expect_true (p->w)) |
|
|
1736 | { |
|
|
1737 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
1967 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
|
|
1968 | /* ^ this is no longer true, as pending_w could be here */ |
1738 | |
1969 | |
1739 | p->w->pending = 0; |
1970 | p->w->pending = 0; |
1740 | EV_CB_INVOKE (p->w, p->events); |
1971 | EV_CB_INVOKE (p->w, p->events); |
1741 | EV_FREQUENT_CHECK; |
1972 | EV_FREQUENT_CHECK; |
1742 | } |
|
|
1743 | } |
1973 | } |
1744 | } |
1974 | } |
1745 | |
1975 | |
1746 | #if EV_IDLE_ENABLE |
1976 | #if EV_IDLE_ENABLE |
1747 | void inline_size |
1977 | /* make idle watchers pending. this handles the "call-idle */ |
|
|
1978 | /* only when higher priorities are idle" logic */ |
|
|
1979 | inline_size void |
1748 | idle_reify (EV_P) |
1980 | idle_reify (EV_P) |
1749 | { |
1981 | { |
1750 | if (expect_false (idleall)) |
1982 | if (expect_false (idleall)) |
1751 | { |
1983 | { |
1752 | int pri; |
1984 | int pri; |
… | |
… | |
1764 | } |
1996 | } |
1765 | } |
1997 | } |
1766 | } |
1998 | } |
1767 | #endif |
1999 | #endif |
1768 | |
2000 | |
1769 | void inline_size |
2001 | /* make timers pending */ |
|
|
2002 | inline_size void |
1770 | timers_reify (EV_P) |
2003 | timers_reify (EV_P) |
1771 | { |
2004 | { |
1772 | EV_FREQUENT_CHECK; |
2005 | EV_FREQUENT_CHECK; |
1773 | |
2006 | |
1774 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
2007 | if (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
1775 | { |
2008 | { |
1776 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
2009 | do |
1777 | |
|
|
1778 | /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1779 | |
|
|
1780 | /* first reschedule or stop timer */ |
|
|
1781 | if (w->repeat) |
|
|
1782 | { |
2010 | { |
|
|
2011 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
|
|
2012 | |
|
|
2013 | /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
2014 | |
|
|
2015 | /* first reschedule or stop timer */ |
|
|
2016 | if (w->repeat) |
|
|
2017 | { |
1783 | ev_at (w) += w->repeat; |
2018 | ev_at (w) += w->repeat; |
1784 | if (ev_at (w) < mn_now) |
2019 | if (ev_at (w) < mn_now) |
1785 | ev_at (w) = mn_now; |
2020 | ev_at (w) = mn_now; |
1786 | |
2021 | |
1787 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
2022 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1788 | |
2023 | |
1789 | ANHE_at_cache (timers [HEAP0]); |
2024 | ANHE_at_cache (timers [HEAP0]); |
1790 | downheap (timers, timercnt, HEAP0); |
2025 | downheap (timers, timercnt, HEAP0); |
|
|
2026 | } |
|
|
2027 | else |
|
|
2028 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2029 | |
|
|
2030 | EV_FREQUENT_CHECK; |
|
|
2031 | feed_reverse (EV_A_ (W)w); |
1791 | } |
2032 | } |
1792 | else |
2033 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
1793 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1794 | |
2034 | |
1795 | EV_FREQUENT_CHECK; |
|
|
1796 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
2035 | feed_reverse_done (EV_A_ EV_TIMEOUT); |
1797 | } |
2036 | } |
1798 | } |
2037 | } |
1799 | |
2038 | |
1800 | #if EV_PERIODIC_ENABLE |
2039 | #if EV_PERIODIC_ENABLE |
1801 | void inline_size |
2040 | /* make periodics pending */ |
|
|
2041 | inline_size void |
1802 | periodics_reify (EV_P) |
2042 | periodics_reify (EV_P) |
1803 | { |
2043 | { |
1804 | EV_FREQUENT_CHECK; |
2044 | EV_FREQUENT_CHECK; |
1805 | |
2045 | |
1806 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
2046 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
1807 | { |
2047 | { |
1808 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
2048 | int feed_count = 0; |
1809 | |
2049 | |
1810 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
2050 | do |
1811 | |
|
|
1812 | /* first reschedule or stop timer */ |
|
|
1813 | if (w->reschedule_cb) |
|
|
1814 | { |
2051 | { |
|
|
2052 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
|
|
2053 | |
|
|
2054 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
2055 | |
|
|
2056 | /* first reschedule or stop timer */ |
|
|
2057 | if (w->reschedule_cb) |
|
|
2058 | { |
1815 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2059 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1816 | |
2060 | |
1817 | assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
2061 | assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
1818 | |
2062 | |
1819 | ANHE_at_cache (periodics [HEAP0]); |
2063 | ANHE_at_cache (periodics [HEAP0]); |
1820 | downheap (periodics, periodiccnt, HEAP0); |
2064 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2065 | } |
|
|
2066 | else if (w->interval) |
|
|
2067 | { |
|
|
2068 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2069 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
2070 | /* this might happen because of floating point inexactness */ |
|
|
2071 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
2072 | { |
|
|
2073 | ev_at (w) += w->interval; |
|
|
2074 | |
|
|
2075 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
2076 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
2077 | /* has effectively asked to get triggered more often than possible */ |
|
|
2078 | if (ev_at (w) < ev_rt_now) |
|
|
2079 | ev_at (w) = ev_rt_now; |
|
|
2080 | } |
|
|
2081 | |
|
|
2082 | ANHE_at_cache (periodics [HEAP0]); |
|
|
2083 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2084 | } |
|
|
2085 | else |
|
|
2086 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2087 | |
|
|
2088 | EV_FREQUENT_CHECK; |
|
|
2089 | feed_reverse (EV_A_ (W)w); |
1821 | } |
2090 | } |
1822 | else if (w->interval) |
2091 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now); |
1823 | { |
|
|
1824 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1825 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
1826 | /* this might happen because of floating point inexactness */ |
|
|
1827 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
1828 | { |
|
|
1829 | ev_at (w) += w->interval; |
|
|
1830 | |
2092 | |
1831 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
1832 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
1833 | /* has effectively asked to get triggered more often than possible */ |
|
|
1834 | if (ev_at (w) < ev_rt_now) |
|
|
1835 | ev_at (w) = ev_rt_now; |
|
|
1836 | } |
|
|
1837 | |
|
|
1838 | ANHE_at_cache (periodics [HEAP0]); |
|
|
1839 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1840 | } |
|
|
1841 | else |
|
|
1842 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1843 | |
|
|
1844 | EV_FREQUENT_CHECK; |
|
|
1845 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
2093 | feed_reverse_done (EV_A_ EV_PERIODIC); |
1846 | } |
2094 | } |
1847 | } |
2095 | } |
1848 | |
2096 | |
|
|
2097 | /* simply recalculate all periodics */ |
|
|
2098 | /* TODO: maybe ensure that at leats one event happens when jumping forward? */ |
1849 | static void noinline |
2099 | static void noinline |
1850 | periodics_reschedule (EV_P) |
2100 | periodics_reschedule (EV_P) |
1851 | { |
2101 | { |
1852 | int i; |
2102 | int i; |
1853 | |
2103 | |
… | |
… | |
1866 | |
2116 | |
1867 | reheap (periodics, periodiccnt); |
2117 | reheap (periodics, periodiccnt); |
1868 | } |
2118 | } |
1869 | #endif |
2119 | #endif |
1870 | |
2120 | |
1871 | void inline_speed |
2121 | /* adjust all timers by a given offset */ |
|
|
2122 | static void noinline |
|
|
2123 | timers_reschedule (EV_P_ ev_tstamp adjust) |
|
|
2124 | { |
|
|
2125 | int i; |
|
|
2126 | |
|
|
2127 | for (i = 0; i < timercnt; ++i) |
|
|
2128 | { |
|
|
2129 | ANHE *he = timers + i + HEAP0; |
|
|
2130 | ANHE_w (*he)->at += adjust; |
|
|
2131 | ANHE_at_cache (*he); |
|
|
2132 | } |
|
|
2133 | } |
|
|
2134 | |
|
|
2135 | /* fetch new monotonic and realtime times from the kernel */ |
|
|
2136 | /* also detetc if there was a timejump, and act accordingly */ |
|
|
2137 | inline_speed void |
1872 | time_update (EV_P_ ev_tstamp max_block) |
2138 | time_update (EV_P_ ev_tstamp max_block) |
1873 | { |
2139 | { |
1874 | int i; |
|
|
1875 | |
|
|
1876 | #if EV_USE_MONOTONIC |
2140 | #if EV_USE_MONOTONIC |
1877 | if (expect_true (have_monotonic)) |
2141 | if (expect_true (have_monotonic)) |
1878 | { |
2142 | { |
|
|
2143 | int i; |
1879 | ev_tstamp odiff = rtmn_diff; |
2144 | ev_tstamp odiff = rtmn_diff; |
1880 | |
2145 | |
1881 | mn_now = get_clock (); |
2146 | mn_now = get_clock (); |
1882 | |
2147 | |
1883 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
2148 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
… | |
… | |
1909 | ev_rt_now = ev_time (); |
2174 | ev_rt_now = ev_time (); |
1910 | mn_now = get_clock (); |
2175 | mn_now = get_clock (); |
1911 | now_floor = mn_now; |
2176 | now_floor = mn_now; |
1912 | } |
2177 | } |
1913 | |
2178 | |
|
|
2179 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
2180 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1914 | # if EV_PERIODIC_ENABLE |
2181 | # if EV_PERIODIC_ENABLE |
1915 | periodics_reschedule (EV_A); |
2182 | periodics_reschedule (EV_A); |
1916 | # endif |
2183 | # endif |
1917 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1918 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1919 | } |
2184 | } |
1920 | else |
2185 | else |
1921 | #endif |
2186 | #endif |
1922 | { |
2187 | { |
1923 | ev_rt_now = ev_time (); |
2188 | ev_rt_now = ev_time (); |
1924 | |
2189 | |
1925 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
2190 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
1926 | { |
2191 | { |
|
|
2192 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
2193 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
1927 | #if EV_PERIODIC_ENABLE |
2194 | #if EV_PERIODIC_ENABLE |
1928 | periodics_reschedule (EV_A); |
2195 | periodics_reschedule (EV_A); |
1929 | #endif |
2196 | #endif |
1930 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1931 | for (i = 0; i < timercnt; ++i) |
|
|
1932 | { |
|
|
1933 | ANHE *he = timers + i + HEAP0; |
|
|
1934 | ANHE_w (*he)->at += ev_rt_now - mn_now; |
|
|
1935 | ANHE_at_cache (*he); |
|
|
1936 | } |
|
|
1937 | } |
2197 | } |
1938 | |
2198 | |
1939 | mn_now = ev_rt_now; |
2199 | mn_now = ev_rt_now; |
1940 | } |
2200 | } |
1941 | } |
2201 | } |
1942 | |
2202 | |
1943 | void |
2203 | void |
1944 | ev_ref (EV_P) |
|
|
1945 | { |
|
|
1946 | ++activecnt; |
|
|
1947 | } |
|
|
1948 | |
|
|
1949 | void |
|
|
1950 | ev_unref (EV_P) |
|
|
1951 | { |
|
|
1952 | --activecnt; |
|
|
1953 | } |
|
|
1954 | |
|
|
1955 | void |
|
|
1956 | ev_now_update (EV_P) |
|
|
1957 | { |
|
|
1958 | time_update (EV_A_ 1e100); |
|
|
1959 | } |
|
|
1960 | |
|
|
1961 | static int loop_done; |
|
|
1962 | |
|
|
1963 | void |
|
|
1964 | ev_loop (EV_P_ int flags) |
2204 | ev_loop (EV_P_ int flags) |
1965 | { |
2205 | { |
|
|
2206 | #if EV_MINIMAL < 2 |
|
|
2207 | ++loop_depth; |
|
|
2208 | #endif |
|
|
2209 | |
|
|
2210 | assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); |
|
|
2211 | |
1966 | loop_done = EVUNLOOP_CANCEL; |
2212 | loop_done = EVUNLOOP_CANCEL; |
1967 | |
2213 | |
1968 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
2214 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
1969 | |
2215 | |
1970 | do |
2216 | do |
1971 | { |
2217 | { |
1972 | #if EV_VERIFY >= 2 |
2218 | #if EV_VERIFY >= 2 |
1973 | ev_loop_verify (EV_A); |
2219 | ev_loop_verify (EV_A); |
… | |
… | |
1986 | /* we might have forked, so queue fork handlers */ |
2232 | /* we might have forked, so queue fork handlers */ |
1987 | if (expect_false (postfork)) |
2233 | if (expect_false (postfork)) |
1988 | if (forkcnt) |
2234 | if (forkcnt) |
1989 | { |
2235 | { |
1990 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2236 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
1991 | call_pending (EV_A); |
2237 | EV_INVOKE_PENDING; |
1992 | } |
2238 | } |
1993 | #endif |
2239 | #endif |
1994 | |
2240 | |
1995 | /* queue prepare watchers (and execute them) */ |
2241 | /* queue prepare watchers (and execute them) */ |
1996 | if (expect_false (preparecnt)) |
2242 | if (expect_false (preparecnt)) |
1997 | { |
2243 | { |
1998 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2244 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1999 | call_pending (EV_A); |
2245 | EV_INVOKE_PENDING; |
2000 | } |
2246 | } |
2001 | |
2247 | |
2002 | if (expect_false (!activecnt)) |
2248 | if (expect_false (loop_done)) |
2003 | break; |
2249 | break; |
2004 | |
2250 | |
2005 | /* we might have forked, so reify kernel state if necessary */ |
2251 | /* we might have forked, so reify kernel state if necessary */ |
2006 | if (expect_false (postfork)) |
2252 | if (expect_false (postfork)) |
2007 | loop_fork (EV_A); |
2253 | loop_fork (EV_A); |
… | |
… | |
2014 | ev_tstamp waittime = 0.; |
2260 | ev_tstamp waittime = 0.; |
2015 | ev_tstamp sleeptime = 0.; |
2261 | ev_tstamp sleeptime = 0.; |
2016 | |
2262 | |
2017 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2263 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2018 | { |
2264 | { |
|
|
2265 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2266 | ev_tstamp prev_mn_now = mn_now; |
|
|
2267 | |
2019 | /* update time to cancel out callback processing overhead */ |
2268 | /* update time to cancel out callback processing overhead */ |
2020 | time_update (EV_A_ 1e100); |
2269 | time_update (EV_A_ 1e100); |
2021 | |
2270 | |
2022 | waittime = MAX_BLOCKTIME; |
2271 | waittime = MAX_BLOCKTIME; |
2023 | |
2272 | |
… | |
… | |
2033 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
2282 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
2034 | if (waittime > to) waittime = to; |
2283 | if (waittime > to) waittime = to; |
2035 | } |
2284 | } |
2036 | #endif |
2285 | #endif |
2037 | |
2286 | |
|
|
2287 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
2038 | if (expect_false (waittime < timeout_blocktime)) |
2288 | if (expect_false (waittime < timeout_blocktime)) |
2039 | waittime = timeout_blocktime; |
2289 | waittime = timeout_blocktime; |
2040 | |
2290 | |
2041 | sleeptime = waittime - backend_fudge; |
2291 | /* extra check because io_blocktime is commonly 0 */ |
2042 | |
|
|
2043 | if (expect_true (sleeptime > io_blocktime)) |
2292 | if (expect_false (io_blocktime)) |
2044 | sleeptime = io_blocktime; |
|
|
2045 | |
|
|
2046 | if (sleeptime) |
|
|
2047 | { |
2293 | { |
|
|
2294 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
|
|
2295 | |
|
|
2296 | if (sleeptime > waittime - backend_fudge) |
|
|
2297 | sleeptime = waittime - backend_fudge; |
|
|
2298 | |
|
|
2299 | if (expect_true (sleeptime > 0.)) |
|
|
2300 | { |
2048 | ev_sleep (sleeptime); |
2301 | ev_sleep (sleeptime); |
2049 | waittime -= sleeptime; |
2302 | waittime -= sleeptime; |
|
|
2303 | } |
2050 | } |
2304 | } |
2051 | } |
2305 | } |
2052 | |
2306 | |
|
|
2307 | #if EV_MINIMAL < 2 |
2053 | ++loop_count; |
2308 | ++loop_count; |
|
|
2309 | #endif |
|
|
2310 | assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ |
2054 | backend_poll (EV_A_ waittime); |
2311 | backend_poll (EV_A_ waittime); |
|
|
2312 | assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ |
2055 | |
2313 | |
2056 | /* update ev_rt_now, do magic */ |
2314 | /* update ev_rt_now, do magic */ |
2057 | time_update (EV_A_ waittime + sleeptime); |
2315 | time_update (EV_A_ waittime + sleeptime); |
2058 | } |
2316 | } |
2059 | |
2317 | |
… | |
… | |
2070 | |
2328 | |
2071 | /* queue check watchers, to be executed first */ |
2329 | /* queue check watchers, to be executed first */ |
2072 | if (expect_false (checkcnt)) |
2330 | if (expect_false (checkcnt)) |
2073 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2331 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2074 | |
2332 | |
2075 | call_pending (EV_A); |
2333 | EV_INVOKE_PENDING; |
2076 | } |
2334 | } |
2077 | while (expect_true ( |
2335 | while (expect_true ( |
2078 | activecnt |
2336 | activecnt |
2079 | && !loop_done |
2337 | && !loop_done |
2080 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2338 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2081 | )); |
2339 | )); |
2082 | |
2340 | |
2083 | if (loop_done == EVUNLOOP_ONE) |
2341 | if (loop_done == EVUNLOOP_ONE) |
2084 | loop_done = EVUNLOOP_CANCEL; |
2342 | loop_done = EVUNLOOP_CANCEL; |
|
|
2343 | |
|
|
2344 | #if EV_MINIMAL < 2 |
|
|
2345 | --loop_depth; |
|
|
2346 | #endif |
2085 | } |
2347 | } |
2086 | |
2348 | |
2087 | void |
2349 | void |
2088 | ev_unloop (EV_P_ int how) |
2350 | ev_unloop (EV_P_ int how) |
2089 | { |
2351 | { |
2090 | loop_done = how; |
2352 | loop_done = how; |
2091 | } |
2353 | } |
2092 | |
2354 | |
|
|
2355 | void |
|
|
2356 | ev_ref (EV_P) |
|
|
2357 | { |
|
|
2358 | ++activecnt; |
|
|
2359 | } |
|
|
2360 | |
|
|
2361 | void |
|
|
2362 | ev_unref (EV_P) |
|
|
2363 | { |
|
|
2364 | --activecnt; |
|
|
2365 | } |
|
|
2366 | |
|
|
2367 | void |
|
|
2368 | ev_now_update (EV_P) |
|
|
2369 | { |
|
|
2370 | time_update (EV_A_ 1e100); |
|
|
2371 | } |
|
|
2372 | |
|
|
2373 | void |
|
|
2374 | ev_suspend (EV_P) |
|
|
2375 | { |
|
|
2376 | ev_now_update (EV_A); |
|
|
2377 | } |
|
|
2378 | |
|
|
2379 | void |
|
|
2380 | ev_resume (EV_P) |
|
|
2381 | { |
|
|
2382 | ev_tstamp mn_prev = mn_now; |
|
|
2383 | |
|
|
2384 | ev_now_update (EV_A); |
|
|
2385 | timers_reschedule (EV_A_ mn_now - mn_prev); |
|
|
2386 | #if EV_PERIODIC_ENABLE |
|
|
2387 | /* TODO: really do this? */ |
|
|
2388 | periodics_reschedule (EV_A); |
|
|
2389 | #endif |
|
|
2390 | } |
|
|
2391 | |
2093 | /*****************************************************************************/ |
2392 | /*****************************************************************************/ |
|
|
2393 | /* singly-linked list management, used when the expected list length is short */ |
2094 | |
2394 | |
2095 | void inline_size |
2395 | inline_size void |
2096 | wlist_add (WL *head, WL elem) |
2396 | wlist_add (WL *head, WL elem) |
2097 | { |
2397 | { |
2098 | elem->next = *head; |
2398 | elem->next = *head; |
2099 | *head = elem; |
2399 | *head = elem; |
2100 | } |
2400 | } |
2101 | |
2401 | |
2102 | void inline_size |
2402 | inline_size void |
2103 | wlist_del (WL *head, WL elem) |
2403 | wlist_del (WL *head, WL elem) |
2104 | { |
2404 | { |
2105 | while (*head) |
2405 | while (*head) |
2106 | { |
2406 | { |
2107 | if (*head == elem) |
2407 | if (expect_true (*head == elem)) |
2108 | { |
2408 | { |
2109 | *head = elem->next; |
2409 | *head = elem->next; |
2110 | return; |
2410 | break; |
2111 | } |
2411 | } |
2112 | |
2412 | |
2113 | head = &(*head)->next; |
2413 | head = &(*head)->next; |
2114 | } |
2414 | } |
2115 | } |
2415 | } |
2116 | |
2416 | |
2117 | void inline_speed |
2417 | /* internal, faster, version of ev_clear_pending */ |
|
|
2418 | inline_speed void |
2118 | clear_pending (EV_P_ W w) |
2419 | clear_pending (EV_P_ W w) |
2119 | { |
2420 | { |
2120 | if (w->pending) |
2421 | if (w->pending) |
2121 | { |
2422 | { |
2122 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
2423 | pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w; |
2123 | w->pending = 0; |
2424 | w->pending = 0; |
2124 | } |
2425 | } |
2125 | } |
2426 | } |
2126 | |
2427 | |
2127 | int |
2428 | int |
… | |
… | |
2131 | int pending = w_->pending; |
2432 | int pending = w_->pending; |
2132 | |
2433 | |
2133 | if (expect_true (pending)) |
2434 | if (expect_true (pending)) |
2134 | { |
2435 | { |
2135 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
2436 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
2437 | p->w = (W)&pending_w; |
2136 | w_->pending = 0; |
2438 | w_->pending = 0; |
2137 | p->w = 0; |
|
|
2138 | return p->events; |
2439 | return p->events; |
2139 | } |
2440 | } |
2140 | else |
2441 | else |
2141 | return 0; |
2442 | return 0; |
2142 | } |
2443 | } |
2143 | |
2444 | |
2144 | void inline_size |
2445 | inline_size void |
2145 | pri_adjust (EV_P_ W w) |
2446 | pri_adjust (EV_P_ W w) |
2146 | { |
2447 | { |
2147 | int pri = w->priority; |
2448 | int pri = ev_priority (w); |
2148 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2449 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2149 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2450 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2150 | w->priority = pri; |
2451 | ev_set_priority (w, pri); |
2151 | } |
2452 | } |
2152 | |
2453 | |
2153 | void inline_speed |
2454 | inline_speed void |
2154 | ev_start (EV_P_ W w, int active) |
2455 | ev_start (EV_P_ W w, int active) |
2155 | { |
2456 | { |
2156 | pri_adjust (EV_A_ w); |
2457 | pri_adjust (EV_A_ w); |
2157 | w->active = active; |
2458 | w->active = active; |
2158 | ev_ref (EV_A); |
2459 | ev_ref (EV_A); |
2159 | } |
2460 | } |
2160 | |
2461 | |
2161 | void inline_size |
2462 | inline_size void |
2162 | ev_stop (EV_P_ W w) |
2463 | ev_stop (EV_P_ W w) |
2163 | { |
2464 | { |
2164 | ev_unref (EV_A); |
2465 | ev_unref (EV_A); |
2165 | w->active = 0; |
2466 | w->active = 0; |
2166 | } |
2467 | } |
… | |
… | |
2182 | |
2483 | |
2183 | ev_start (EV_A_ (W)w, 1); |
2484 | ev_start (EV_A_ (W)w, 1); |
2184 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2485 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2185 | wlist_add (&anfds[fd].head, (WL)w); |
2486 | wlist_add (&anfds[fd].head, (WL)w); |
2186 | |
2487 | |
2187 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | 1); |
2488 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
2188 | w->events &= ~EV__IOFDSET; |
2489 | w->events &= ~EV__IOFDSET; |
2189 | |
2490 | |
2190 | EV_FREQUENT_CHECK; |
2491 | EV_FREQUENT_CHECK; |
2191 | } |
2492 | } |
2192 | |
2493 | |
… | |
… | |
2286 | } |
2587 | } |
2287 | |
2588 | |
2288 | EV_FREQUENT_CHECK; |
2589 | EV_FREQUENT_CHECK; |
2289 | } |
2590 | } |
2290 | |
2591 | |
|
|
2592 | ev_tstamp |
|
|
2593 | ev_timer_remaining (EV_P_ ev_timer *w) |
|
|
2594 | { |
|
|
2595 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
|
|
2596 | } |
|
|
2597 | |
2291 | #if EV_PERIODIC_ENABLE |
2598 | #if EV_PERIODIC_ENABLE |
2292 | void noinline |
2599 | void noinline |
2293 | ev_periodic_start (EV_P_ ev_periodic *w) |
2600 | ev_periodic_start (EV_P_ ev_periodic *w) |
2294 | { |
2601 | { |
2295 | if (expect_false (ev_is_active (w))) |
2602 | if (expect_false (ev_is_active (w))) |
… | |
… | |
2362 | #endif |
2669 | #endif |
2363 | |
2670 | |
2364 | void noinline |
2671 | void noinline |
2365 | ev_signal_start (EV_P_ ev_signal *w) |
2672 | ev_signal_start (EV_P_ ev_signal *w) |
2366 | { |
2673 | { |
2367 | #if EV_MULTIPLICITY |
|
|
2368 | assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
2369 | #endif |
|
|
2370 | if (expect_false (ev_is_active (w))) |
2674 | if (expect_false (ev_is_active (w))) |
2371 | return; |
2675 | return; |
2372 | |
2676 | |
2373 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); |
2677 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
2374 | |
2678 | |
2375 | evpipe_init (EV_A); |
2679 | #if EV_MULTIPLICITY |
|
|
2680 | assert (("libev: a signal must not be attached to two different loops", |
|
|
2681 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
2376 | |
2682 | |
2377 | EV_FREQUENT_CHECK; |
2683 | signals [w->signum - 1].loop = EV_A; |
|
|
2684 | #endif |
2378 | |
2685 | |
|
|
2686 | EV_FREQUENT_CHECK; |
|
|
2687 | |
|
|
2688 | #if EV_USE_SIGNALFD |
|
|
2689 | if (sigfd == -2) |
2379 | { |
2690 | { |
2380 | #ifndef _WIN32 |
2691 | sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC); |
2381 | sigset_t full, prev; |
2692 | if (sigfd < 0 && errno == EINVAL) |
2382 | sigfillset (&full); |
2693 | sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */ |
2383 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2384 | #endif |
|
|
2385 | |
2694 | |
2386 | array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); |
2695 | if (sigfd >= 0) |
|
|
2696 | { |
|
|
2697 | fd_intern (sigfd); /* doing it twice will not hurt */ |
2387 | |
2698 | |
2388 | #ifndef _WIN32 |
2699 | sigemptyset (&sigfd_set); |
2389 | sigprocmask (SIG_SETMASK, &prev, 0); |
2700 | |
2390 | #endif |
2701 | ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ); |
|
|
2702 | ev_set_priority (&sigfd_w, EV_MAXPRI); |
|
|
2703 | ev_io_start (EV_A_ &sigfd_w); |
|
|
2704 | ev_unref (EV_A); /* signalfd watcher should not keep loop alive */ |
|
|
2705 | } |
2391 | } |
2706 | } |
|
|
2707 | |
|
|
2708 | if (sigfd >= 0) |
|
|
2709 | { |
|
|
2710 | /* TODO: check .head */ |
|
|
2711 | sigaddset (&sigfd_set, w->signum); |
|
|
2712 | sigprocmask (SIG_BLOCK, &sigfd_set, 0); |
|
|
2713 | |
|
|
2714 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2715 | } |
|
|
2716 | #endif |
2392 | |
2717 | |
2393 | ev_start (EV_A_ (W)w, 1); |
2718 | ev_start (EV_A_ (W)w, 1); |
2394 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2719 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2395 | |
2720 | |
2396 | if (!((WL)w)->next) |
2721 | if (!((WL)w)->next) |
|
|
2722 | # if EV_USE_SIGNALFD |
|
|
2723 | if (sigfd < 0) /*TODO*/ |
|
|
2724 | # endif |
2397 | { |
2725 | { |
2398 | #if _WIN32 |
2726 | # if _WIN32 |
2399 | signal (w->signum, ev_sighandler); |
2727 | signal (w->signum, ev_sighandler); |
2400 | #else |
2728 | # else |
2401 | struct sigaction sa; |
2729 | struct sigaction sa; |
|
|
2730 | |
|
|
2731 | evpipe_init (EV_A); |
|
|
2732 | |
2402 | sa.sa_handler = ev_sighandler; |
2733 | sa.sa_handler = ev_sighandler; |
2403 | sigfillset (&sa.sa_mask); |
2734 | sigfillset (&sa.sa_mask); |
2404 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2735 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2405 | sigaction (w->signum, &sa, 0); |
2736 | sigaction (w->signum, &sa, 0); |
|
|
2737 | |
|
|
2738 | sigemptyset (&sa.sa_mask); |
|
|
2739 | sigaddset (&sa.sa_mask, w->signum); |
|
|
2740 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
2406 | #endif |
2741 | #endif |
2407 | } |
2742 | } |
2408 | |
2743 | |
2409 | EV_FREQUENT_CHECK; |
2744 | EV_FREQUENT_CHECK; |
2410 | } |
2745 | } |
2411 | |
2746 | |
2412 | void noinline |
2747 | void noinline |
… | |
… | |
2420 | |
2755 | |
2421 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2756 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2422 | ev_stop (EV_A_ (W)w); |
2757 | ev_stop (EV_A_ (W)w); |
2423 | |
2758 | |
2424 | if (!signals [w->signum - 1].head) |
2759 | if (!signals [w->signum - 1].head) |
|
|
2760 | { |
|
|
2761 | #if EV_MULTIPLICITY |
|
|
2762 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
|
|
2763 | #endif |
|
|
2764 | #if EV_USE_SIGNALFD |
|
|
2765 | if (sigfd >= 0) |
|
|
2766 | { |
|
|
2767 | sigprocmask (SIG_UNBLOCK, &sigfd_set, 0);//D |
|
|
2768 | sigdelset (&sigfd_set, w->signum); |
|
|
2769 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2770 | sigprocmask (SIG_BLOCK, &sigfd_set, 0);//D |
|
|
2771 | /*TODO: maybe unblock signal? */ |
|
|
2772 | } |
|
|
2773 | else |
|
|
2774 | #endif |
2425 | signal (w->signum, SIG_DFL); |
2775 | signal (w->signum, SIG_DFL); |
|
|
2776 | } |
2426 | |
2777 | |
2427 | EV_FREQUENT_CHECK; |
2778 | EV_FREQUENT_CHECK; |
2428 | } |
2779 | } |
2429 | |
2780 | |
2430 | void |
2781 | void |
… | |
… | |
2510 | } |
2861 | } |
2511 | } |
2862 | } |
2512 | |
2863 | |
2513 | if (w->wd >= 0) |
2864 | if (w->wd >= 0) |
2514 | { |
2865 | { |
|
|
2866 | struct statfs sfs; |
|
|
2867 | |
2515 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2868 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2516 | |
2869 | |
2517 | /* now local changes will be tracked by inotify, but remote changes won't */ |
2870 | /* now local changes will be tracked by inotify, but remote changes won't */ |
2518 | /* unless the filesystem it known to be local, we therefore still poll */ |
2871 | /* unless the filesystem it known to be local, we therefore still poll */ |
2519 | /* also do poll on <2.6.25, but with normal frequency */ |
2872 | /* also do poll on <2.6.25, but with normal frequency */ |
2520 | struct statfs sfs; |
|
|
2521 | |
2873 | |
2522 | if (fs_2625 && !statfs (w->path, &sfs)) |
2874 | if (fs_2625 && !statfs (w->path, &sfs)) |
2523 | if (sfs.f_type == 0x1373 /* devfs */ |
2875 | if (sfs.f_type == 0x1373 /* devfs */ |
2524 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
2876 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
2525 | || sfs.f_type == 0x3153464a /* jfs */ |
2877 | || sfs.f_type == 0x3153464a /* jfs */ |
… | |
… | |
2591 | |
2943 | |
2592 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
2944 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
2593 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
2945 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
2594 | } |
2946 | } |
2595 | |
2947 | |
2596 | void inline_size |
2948 | inline_size void |
2597 | check_2625 (EV_P) |
2949 | check_2625 (EV_P) |
2598 | { |
2950 | { |
2599 | /* kernels < 2.6.25 are borked |
2951 | /* kernels < 2.6.25 are borked |
2600 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
2952 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
2601 | */ |
2953 | */ |
… | |
… | |
2614 | return; |
2966 | return; |
2615 | |
2967 | |
2616 | fs_2625 = 1; |
2968 | fs_2625 = 1; |
2617 | } |
2969 | } |
2618 | |
2970 | |
2619 | void inline_size |
2971 | inline_size void |
2620 | infy_init (EV_P) |
2972 | infy_init (EV_P) |
2621 | { |
2973 | { |
2622 | if (fs_fd != -2) |
2974 | if (fs_fd != -2) |
2623 | return; |
2975 | return; |
2624 | |
2976 | |
… | |
… | |
2634 | ev_set_priority (&fs_w, EV_MAXPRI); |
2986 | ev_set_priority (&fs_w, EV_MAXPRI); |
2635 | ev_io_start (EV_A_ &fs_w); |
2987 | ev_io_start (EV_A_ &fs_w); |
2636 | } |
2988 | } |
2637 | } |
2989 | } |
2638 | |
2990 | |
2639 | void inline_size |
2991 | inline_size void |
2640 | infy_fork (EV_P) |
2992 | infy_fork (EV_P) |
2641 | { |
2993 | { |
2642 | int slot; |
2994 | int slot; |
2643 | |
2995 | |
2644 | if (fs_fd < 0) |
2996 | if (fs_fd < 0) |
… | |
… | |
2910 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3262 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
2911 | { |
3263 | { |
2912 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
3264 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
2913 | |
3265 | |
2914 | { |
3266 | { |
2915 | struct ev_loop *loop = w->other; |
3267 | EV_P = w->other; |
2916 | |
3268 | |
2917 | while (fdchangecnt) |
3269 | while (fdchangecnt) |
2918 | { |
3270 | { |
2919 | fd_reify (EV_A); |
3271 | fd_reify (EV_A); |
2920 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3272 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
… | |
… | |
2928 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
3280 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
2929 | |
3281 | |
2930 | ev_embed_stop (EV_A_ w); |
3282 | ev_embed_stop (EV_A_ w); |
2931 | |
3283 | |
2932 | { |
3284 | { |
2933 | struct ev_loop *loop = w->other; |
3285 | EV_P = w->other; |
2934 | |
3286 | |
2935 | ev_loop_fork (EV_A); |
3287 | ev_loop_fork (EV_A); |
2936 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3288 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
2937 | } |
3289 | } |
2938 | |
3290 | |
… | |
… | |
2952 | { |
3304 | { |
2953 | if (expect_false (ev_is_active (w))) |
3305 | if (expect_false (ev_is_active (w))) |
2954 | return; |
3306 | return; |
2955 | |
3307 | |
2956 | { |
3308 | { |
2957 | struct ev_loop *loop = w->other; |
3309 | EV_P = w->other; |
2958 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3310 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2959 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3311 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2960 | } |
3312 | } |
2961 | |
3313 | |
2962 | EV_FREQUENT_CHECK; |
3314 | EV_FREQUENT_CHECK; |
… | |
… | |
3074 | |
3426 | |
3075 | void |
3427 | void |
3076 | ev_async_send (EV_P_ ev_async *w) |
3428 | ev_async_send (EV_P_ ev_async *w) |
3077 | { |
3429 | { |
3078 | w->sent = 1; |
3430 | w->sent = 1; |
3079 | evpipe_write (EV_A_ &gotasync); |
3431 | evpipe_write (EV_A_ &async_pending); |
3080 | } |
3432 | } |
3081 | #endif |
3433 | #endif |
3082 | |
3434 | |
3083 | /*****************************************************************************/ |
3435 | /*****************************************************************************/ |
3084 | |
3436 | |
… | |
… | |
3148 | } |
3500 | } |
3149 | } |
3501 | } |
3150 | |
3502 | |
3151 | /*****************************************************************************/ |
3503 | /*****************************************************************************/ |
3152 | |
3504 | |
3153 | #if 0 |
3505 | #if EV_WALK_ENABLE |
3154 | void |
3506 | void |
3155 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
3507 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
3156 | { |
3508 | { |
3157 | int i, j; |
3509 | int i, j; |
3158 | ev_watcher_list *wl, *wn; |
3510 | ev_watcher_list *wl, *wn; |
… | |
… | |
3174 | #if EV_USE_INOTIFY |
3526 | #if EV_USE_INOTIFY |
3175 | if (ev_cb ((ev_io *)wl) == infy_cb) |
3527 | if (ev_cb ((ev_io *)wl) == infy_cb) |
3176 | ; |
3528 | ; |
3177 | else |
3529 | else |
3178 | #endif |
3530 | #endif |
3179 | if ((ev_io *)wl != &pipeev) |
3531 | if ((ev_io *)wl != &pipe_w) |
3180 | if (types & EV_IO) |
3532 | if (types & EV_IO) |
3181 | cb (EV_A_ EV_IO, wl); |
3533 | cb (EV_A_ EV_IO, wl); |
3182 | |
3534 | |
3183 | wl = wn; |
3535 | wl = wn; |
3184 | } |
3536 | } |
… | |
… | |
3233 | if (types & EV_CHECK) |
3585 | if (types & EV_CHECK) |
3234 | for (i = checkcnt; i--; ) |
3586 | for (i = checkcnt; i--; ) |
3235 | cb (EV_A_ EV_CHECK, checks [i]); |
3587 | cb (EV_A_ EV_CHECK, checks [i]); |
3236 | |
3588 | |
3237 | if (types & EV_SIGNAL) |
3589 | if (types & EV_SIGNAL) |
3238 | for (i = 0; i < signalmax; ++i) |
3590 | for (i = 0; i < EV_NSIG - 1; ++i) |
3239 | for (wl = signals [i].head; wl; ) |
3591 | for (wl = signals [i].head; wl; ) |
3240 | { |
3592 | { |
3241 | wn = wl->next; |
3593 | wn = wl->next; |
3242 | cb (EV_A_ EV_SIGNAL, wl); |
3594 | cb (EV_A_ EV_SIGNAL, wl); |
3243 | wl = wn; |
3595 | wl = wn; |