… | |
… | |
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 |
67 | # endif |
69 | # endif |
68 | # ifndef EV_USE_REALTIME |
70 | # ifndef EV_USE_REALTIME |
69 | # define EV_USE_REALTIME 1 |
71 | # define EV_USE_REALTIME 0 |
70 | # endif |
72 | # endif |
71 | # else |
73 | # else |
72 | # ifndef EV_USE_MONOTONIC |
74 | # ifndef EV_USE_MONOTONIC |
73 | # define EV_USE_MONOTONIC 0 |
75 | # define EV_USE_MONOTONIC 0 |
74 | # endif |
76 | # endif |
… | |
… | |
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 | /* one some platforms, NSIG is one too large. we do not bother */ |
|
|
193 | #if defined (EV_NSIG) |
|
|
194 | /* use what's provided */ |
|
|
195 | #elif defined (NSIG) |
|
|
196 | # define EV_NSIG (NSIG) |
|
|
197 | #elif defined(_NSIG) |
|
|
198 | # define EV_NSIG (_NSIG) |
|
|
199 | #elif defined (SIGMAX) |
|
|
200 | # define EV_NSIG (SIGMAX+1) |
|
|
201 | #elif defined (SIG_MAX) |
|
|
202 | # define EV_NSIG (SIG_MAX+1) |
|
|
203 | #elif defined (_SIG_MAX) |
|
|
204 | # define EV_NSIG (_SIG_MAX+1) |
|
|
205 | #elif defined (MAXSIG) |
|
|
206 | # define EV_NSIG (MAXSIG+1) |
|
|
207 | #elif defined (MAX_SIG) |
|
|
208 | # define EV_NSIG (MAX_SIG+1) |
|
|
209 | #elif defined (SIGARRAYSIZE) |
|
|
210 | # define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */ |
|
|
211 | #elif defined (_sys_nsig) |
|
|
212 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
|
|
213 | #else |
|
|
214 | # error "unable to find value for NSIG, please report" |
|
|
215 | /* to make it compile regardless, just remove the above line */ |
|
|
216 | # define EV_NSIG 65 |
|
|
217 | #endif |
|
|
218 | |
181 | #ifndef EV_USE_CLOCK_SYSCALL |
219 | #ifndef EV_USE_CLOCK_SYSCALL |
182 | # if __linux && __GLIBC__ >= 2 |
220 | # if __linux && __GLIBC__ >= 2 |
183 | # define EV_USE_CLOCK_SYSCALL 1 |
221 | # define EV_USE_CLOCK_SYSCALL 1 |
184 | # else |
222 | # else |
185 | # define EV_USE_CLOCK_SYSCALL 0 |
223 | # define EV_USE_CLOCK_SYSCALL 0 |
… | |
… | |
193 | # define EV_USE_MONOTONIC 0 |
231 | # define EV_USE_MONOTONIC 0 |
194 | # endif |
232 | # endif |
195 | #endif |
233 | #endif |
196 | |
234 | |
197 | #ifndef EV_USE_REALTIME |
235 | #ifndef EV_USE_REALTIME |
198 | # define EV_USE_REALTIME 0 |
236 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
199 | #endif |
237 | #endif |
200 | |
238 | |
201 | #ifndef EV_USE_NANOSLEEP |
239 | #ifndef EV_USE_NANOSLEEP |
202 | # if _POSIX_C_SOURCE >= 199309L |
240 | # if _POSIX_C_SOURCE >= 199309L |
203 | # define EV_USE_NANOSLEEP 1 |
241 | # define EV_USE_NANOSLEEP 1 |
… | |
… | |
264 | # else |
302 | # else |
265 | # define EV_USE_EVENTFD 0 |
303 | # define EV_USE_EVENTFD 0 |
266 | # endif |
304 | # endif |
267 | #endif |
305 | #endif |
268 | |
306 | |
|
|
307 | #ifndef EV_USE_SIGNALFD |
|
|
308 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 9)) |
|
|
309 | # define EV_USE_SIGNALFD 1 |
|
|
310 | # else |
|
|
311 | # define EV_USE_SIGNALFD 0 |
|
|
312 | # endif |
|
|
313 | #endif |
|
|
314 | |
269 | #if 0 /* debugging */ |
315 | #if 0 /* debugging */ |
270 | # define EV_VERIFY 3 |
316 | # define EV_VERIFY 3 |
271 | # define EV_USE_4HEAP 1 |
317 | # define EV_USE_4HEAP 1 |
272 | # define EV_HEAP_CACHE_AT 1 |
318 | # define EV_HEAP_CACHE_AT 1 |
273 | #endif |
319 | #endif |
… | |
… | |
280 | # define EV_USE_4HEAP !EV_MINIMAL |
326 | # define EV_USE_4HEAP !EV_MINIMAL |
281 | #endif |
327 | #endif |
282 | |
328 | |
283 | #ifndef EV_HEAP_CACHE_AT |
329 | #ifndef EV_HEAP_CACHE_AT |
284 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
330 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
|
|
331 | #endif |
|
|
332 | |
|
|
333 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
|
|
334 | /* which makes programs even slower. might work on other unices, too. */ |
|
|
335 | #if EV_USE_CLOCK_SYSCALL |
|
|
336 | # include <syscall.h> |
|
|
337 | # ifdef SYS_clock_gettime |
|
|
338 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
|
|
339 | # undef EV_USE_MONOTONIC |
|
|
340 | # define EV_USE_MONOTONIC 1 |
|
|
341 | # else |
|
|
342 | # undef EV_USE_CLOCK_SYSCALL |
|
|
343 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
344 | # endif |
285 | #endif |
345 | #endif |
286 | |
346 | |
287 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
347 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
288 | |
348 | |
289 | #ifndef CLOCK_MONOTONIC |
349 | #ifndef CLOCK_MONOTONIC |
… | |
… | |
320 | |
380 | |
321 | #if EV_SELECT_IS_WINSOCKET |
381 | #if EV_SELECT_IS_WINSOCKET |
322 | # include <winsock.h> |
382 | # include <winsock.h> |
323 | #endif |
383 | #endif |
324 | |
384 | |
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 |
385 | #if EV_USE_EVENTFD |
335 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
386 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
336 | # include <stdint.h> |
387 | # include <stdint.h> |
|
|
388 | # ifndef EFD_NONBLOCK |
|
|
389 | # define EFD_NONBLOCK O_NONBLOCK |
|
|
390 | # endif |
|
|
391 | # ifndef EFD_CLOEXEC |
|
|
392 | # define EFD_CLOEXEC O_CLOEXEC |
|
|
393 | # endif |
337 | # ifdef __cplusplus |
394 | # ifdef __cplusplus |
338 | extern "C" { |
395 | extern "C" { |
339 | # endif |
396 | # endif |
340 | int eventfd (unsigned int initval, int flags); |
397 | int eventfd (unsigned int initval, int flags); |
341 | # ifdef __cplusplus |
398 | # ifdef __cplusplus |
342 | } |
399 | } |
343 | # endif |
400 | # endif |
|
|
401 | #endif |
|
|
402 | |
|
|
403 | #if EV_USE_SIGNALFD |
|
|
404 | # include <sys/signalfd.h> |
344 | #endif |
405 | #endif |
345 | |
406 | |
346 | /**/ |
407 | /**/ |
347 | |
408 | |
348 | #if EV_VERIFY >= 3 |
409 | #if EV_VERIFY >= 3 |
… | |
… | |
384 | # define inline_speed static noinline |
445 | # define inline_speed static noinline |
385 | #else |
446 | #else |
386 | # define inline_speed static inline |
447 | # define inline_speed static inline |
387 | #endif |
448 | #endif |
388 | |
449 | |
389 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
450 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
451 | |
|
|
452 | #if EV_MINPRI == EV_MAXPRI |
|
|
453 | # define ABSPRI(w) (((W)w), 0) |
|
|
454 | #else |
390 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
455 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
|
|
456 | #endif |
391 | |
457 | |
392 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
458 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
393 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
459 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
394 | |
460 | |
395 | typedef ev_watcher *W; |
461 | typedef ev_watcher *W; |
… | |
… | |
397 | typedef ev_watcher_time *WT; |
463 | typedef ev_watcher_time *WT; |
398 | |
464 | |
399 | #define ev_active(w) ((W)(w))->active |
465 | #define ev_active(w) ((W)(w))->active |
400 | #define ev_at(w) ((WT)(w))->at |
466 | #define ev_at(w) ((WT)(w))->at |
401 | |
467 | |
402 | #if EV_USE_MONOTONIC |
468 | #if EV_USE_REALTIME |
403 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
469 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
404 | /* giving it a reasonably high chance of working on typical architetcures */ |
470 | /* giving it a reasonably high chance of working on typical architetcures */ |
|
|
471 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
|
|
472 | #endif |
|
|
473 | |
|
|
474 | #if EV_USE_MONOTONIC |
405 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
475 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
406 | #endif |
476 | #endif |
407 | |
477 | |
408 | #ifdef _WIN32 |
478 | #ifdef _WIN32 |
409 | # include "ev_win32.c" |
479 | # include "ev_win32.c" |
… | |
… | |
474 | #define ev_malloc(size) ev_realloc (0, (size)) |
544 | #define ev_malloc(size) ev_realloc (0, (size)) |
475 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
545 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
476 | |
546 | |
477 | /*****************************************************************************/ |
547 | /*****************************************************************************/ |
478 | |
548 | |
|
|
549 | /* set in reify when reification needed */ |
|
|
550 | #define EV_ANFD_REIFY 1 |
|
|
551 | |
|
|
552 | /* file descriptor info structure */ |
479 | typedef struct |
553 | typedef struct |
480 | { |
554 | { |
481 | WL head; |
555 | WL head; |
482 | unsigned char events; |
556 | unsigned char events; /* the events watched for */ |
483 | unsigned char reify; |
557 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
484 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
558 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
485 | unsigned char unused; |
559 | unsigned char unused; |
486 | #if EV_USE_EPOLL |
560 | #if EV_USE_EPOLL |
487 | unsigned int egen; /* generation counter to counter epoll bugs */ |
561 | unsigned int egen; /* generation counter to counter epoll bugs */ |
488 | #endif |
562 | #endif |
489 | #if EV_SELECT_IS_WINSOCKET |
563 | #if EV_SELECT_IS_WINSOCKET |
490 | SOCKET handle; |
564 | SOCKET handle; |
491 | #endif |
565 | #endif |
492 | } ANFD; |
566 | } ANFD; |
493 | |
567 | |
|
|
568 | /* stores the pending event set for a given watcher */ |
494 | typedef struct |
569 | typedef struct |
495 | { |
570 | { |
496 | W w; |
571 | W w; |
497 | int events; |
572 | int events; /* the pending event set for the given watcher */ |
498 | } ANPENDING; |
573 | } ANPENDING; |
499 | |
574 | |
500 | #if EV_USE_INOTIFY |
575 | #if EV_USE_INOTIFY |
501 | /* hash table entry per inotify-id */ |
576 | /* hash table entry per inotify-id */ |
502 | typedef struct |
577 | typedef struct |
… | |
… | |
505 | } ANFS; |
580 | } ANFS; |
506 | #endif |
581 | #endif |
507 | |
582 | |
508 | /* Heap Entry */ |
583 | /* Heap Entry */ |
509 | #if EV_HEAP_CACHE_AT |
584 | #if EV_HEAP_CACHE_AT |
|
|
585 | /* a heap element */ |
510 | typedef struct { |
586 | typedef struct { |
511 | ev_tstamp at; |
587 | ev_tstamp at; |
512 | WT w; |
588 | WT w; |
513 | } ANHE; |
589 | } ANHE; |
514 | |
590 | |
515 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
591 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
516 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
592 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
517 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
593 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
518 | #else |
594 | #else |
|
|
595 | /* a heap element */ |
519 | typedef WT ANHE; |
596 | typedef WT ANHE; |
520 | |
597 | |
521 | #define ANHE_w(he) (he) |
598 | #define ANHE_w(he) (he) |
522 | #define ANHE_at(he) (he)->at |
599 | #define ANHE_at(he) (he)->at |
523 | #define ANHE_at_cache(he) |
600 | #define ANHE_at_cache(he) |
… | |
… | |
547 | |
624 | |
548 | static int ev_default_loop_ptr; |
625 | static int ev_default_loop_ptr; |
549 | |
626 | |
550 | #endif |
627 | #endif |
551 | |
628 | |
|
|
629 | #if EV_MINIMAL < 2 |
|
|
630 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
|
|
631 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
|
|
632 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
|
|
633 | #else |
|
|
634 | # define EV_RELEASE_CB (void)0 |
|
|
635 | # define EV_ACQUIRE_CB (void)0 |
|
|
636 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
|
|
637 | #endif |
|
|
638 | |
|
|
639 | #define EVUNLOOP_RECURSE 0x80 |
|
|
640 | |
552 | /*****************************************************************************/ |
641 | /*****************************************************************************/ |
553 | |
642 | |
|
|
643 | #ifndef EV_HAVE_EV_TIME |
554 | ev_tstamp |
644 | ev_tstamp |
555 | ev_time (void) |
645 | ev_time (void) |
556 | { |
646 | { |
557 | #if EV_USE_REALTIME |
647 | #if EV_USE_REALTIME |
|
|
648 | if (expect_true (have_realtime)) |
|
|
649 | { |
558 | struct timespec ts; |
650 | struct timespec ts; |
559 | clock_gettime (CLOCK_REALTIME, &ts); |
651 | clock_gettime (CLOCK_REALTIME, &ts); |
560 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
652 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
561 | #else |
653 | } |
|
|
654 | #endif |
|
|
655 | |
562 | struct timeval tv; |
656 | struct timeval tv; |
563 | gettimeofday (&tv, 0); |
657 | gettimeofday (&tv, 0); |
564 | return tv.tv_sec + tv.tv_usec * 1e-6; |
658 | return tv.tv_sec + tv.tv_usec * 1e-6; |
565 | #endif |
|
|
566 | } |
659 | } |
|
|
660 | #endif |
567 | |
661 | |
568 | ev_tstamp inline_size |
662 | inline_size ev_tstamp |
569 | get_clock (void) |
663 | get_clock (void) |
570 | { |
664 | { |
571 | #if EV_USE_MONOTONIC |
665 | #if EV_USE_MONOTONIC |
572 | if (expect_true (have_monotonic)) |
666 | if (expect_true (have_monotonic)) |
573 | { |
667 | { |
… | |
… | |
607 | |
701 | |
608 | tv.tv_sec = (time_t)delay; |
702 | tv.tv_sec = (time_t)delay; |
609 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
703 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
610 | |
704 | |
611 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
705 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
612 | /* somehting nto guaranteed by newer posix versions, but guaranteed */ |
706 | /* something not guaranteed by newer posix versions, but guaranteed */ |
613 | /* by older ones */ |
707 | /* by older ones */ |
614 | select (0, 0, 0, 0, &tv); |
708 | select (0, 0, 0, 0, &tv); |
615 | #endif |
709 | #endif |
616 | } |
710 | } |
617 | } |
711 | } |
618 | |
712 | |
619 | /*****************************************************************************/ |
713 | /*****************************************************************************/ |
620 | |
714 | |
621 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
715 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
622 | |
716 | |
623 | int inline_size |
717 | /* find a suitable new size for the given array, */ |
|
|
718 | /* hopefully by rounding to a ncie-to-malloc size */ |
|
|
719 | inline_size int |
624 | array_nextsize (int elem, int cur, int cnt) |
720 | array_nextsize (int elem, int cur, int cnt) |
625 | { |
721 | { |
626 | int ncur = cur + 1; |
722 | int ncur = cur + 1; |
627 | |
723 | |
628 | do |
724 | do |
… | |
… | |
669 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
765 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
670 | } |
766 | } |
671 | #endif |
767 | #endif |
672 | |
768 | |
673 | #define array_free(stem, idx) \ |
769 | #define array_free(stem, idx) \ |
674 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
770 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
675 | |
771 | |
676 | /*****************************************************************************/ |
772 | /*****************************************************************************/ |
|
|
773 | |
|
|
774 | /* dummy callback for pending events */ |
|
|
775 | static void noinline |
|
|
776 | pendingcb (EV_P_ ev_prepare *w, int revents) |
|
|
777 | { |
|
|
778 | } |
677 | |
779 | |
678 | void noinline |
780 | void noinline |
679 | ev_feed_event (EV_P_ void *w, int revents) |
781 | ev_feed_event (EV_P_ void *w, int revents) |
680 | { |
782 | { |
681 | W w_ = (W)w; |
783 | W w_ = (W)w; |
… | |
… | |
690 | pendings [pri][w_->pending - 1].w = w_; |
792 | pendings [pri][w_->pending - 1].w = w_; |
691 | pendings [pri][w_->pending - 1].events = revents; |
793 | pendings [pri][w_->pending - 1].events = revents; |
692 | } |
794 | } |
693 | } |
795 | } |
694 | |
796 | |
695 | void inline_speed |
797 | inline_speed void |
|
|
798 | feed_reverse (EV_P_ W w) |
|
|
799 | { |
|
|
800 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
|
|
801 | rfeeds [rfeedcnt++] = w; |
|
|
802 | } |
|
|
803 | |
|
|
804 | inline_size void |
|
|
805 | feed_reverse_done (EV_P_ int revents) |
|
|
806 | { |
|
|
807 | do |
|
|
808 | ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents); |
|
|
809 | while (rfeedcnt); |
|
|
810 | } |
|
|
811 | |
|
|
812 | inline_speed void |
696 | queue_events (EV_P_ W *events, int eventcnt, int type) |
813 | queue_events (EV_P_ W *events, int eventcnt, int type) |
697 | { |
814 | { |
698 | int i; |
815 | int i; |
699 | |
816 | |
700 | for (i = 0; i < eventcnt; ++i) |
817 | for (i = 0; i < eventcnt; ++i) |
701 | ev_feed_event (EV_A_ events [i], type); |
818 | ev_feed_event (EV_A_ events [i], type); |
702 | } |
819 | } |
703 | |
820 | |
704 | /*****************************************************************************/ |
821 | /*****************************************************************************/ |
705 | |
822 | |
706 | void inline_speed |
823 | inline_speed void |
707 | fd_event (EV_P_ int fd, int revents) |
824 | fd_event_nc (EV_P_ int fd, int revents) |
708 | { |
825 | { |
709 | ANFD *anfd = anfds + fd; |
826 | ANFD *anfd = anfds + fd; |
710 | ev_io *w; |
827 | ev_io *w; |
711 | |
828 | |
712 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
829 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
716 | if (ev) |
833 | if (ev) |
717 | ev_feed_event (EV_A_ (W)w, ev); |
834 | ev_feed_event (EV_A_ (W)w, ev); |
718 | } |
835 | } |
719 | } |
836 | } |
720 | |
837 | |
|
|
838 | /* do not submit kernel events for fds that have reify set */ |
|
|
839 | /* because that means they changed while we were polling for new events */ |
|
|
840 | inline_speed void |
|
|
841 | fd_event (EV_P_ int fd, int revents) |
|
|
842 | { |
|
|
843 | ANFD *anfd = anfds + fd; |
|
|
844 | |
|
|
845 | if (expect_true (!anfd->reify)) |
|
|
846 | fd_event_nc (EV_A_ fd, revents); |
|
|
847 | } |
|
|
848 | |
721 | void |
849 | void |
722 | ev_feed_fd_event (EV_P_ int fd, int revents) |
850 | ev_feed_fd_event (EV_P_ int fd, int revents) |
723 | { |
851 | { |
724 | if (fd >= 0 && fd < anfdmax) |
852 | if (fd >= 0 && fd < anfdmax) |
725 | fd_event (EV_A_ fd, revents); |
853 | fd_event_nc (EV_A_ fd, revents); |
726 | } |
854 | } |
727 | |
855 | |
728 | void inline_size |
856 | /* make sure the external fd watch events are in-sync */ |
|
|
857 | /* with the kernel/libev internal state */ |
|
|
858 | inline_size void |
729 | fd_reify (EV_P) |
859 | fd_reify (EV_P) |
730 | { |
860 | { |
731 | int i; |
861 | int i; |
732 | |
862 | |
733 | for (i = 0; i < fdchangecnt; ++i) |
863 | for (i = 0; i < fdchangecnt; ++i) |
… | |
… | |
759 | unsigned char o_reify = anfd->reify; |
889 | unsigned char o_reify = anfd->reify; |
760 | |
890 | |
761 | anfd->reify = 0; |
891 | anfd->reify = 0; |
762 | anfd->events = events; |
892 | anfd->events = events; |
763 | |
893 | |
764 | if (o_events != events || o_reify & EV_IOFDSET) |
894 | if (o_events != events || o_reify & EV__IOFDSET) |
765 | backend_modify (EV_A_ fd, o_events, events); |
895 | backend_modify (EV_A_ fd, o_events, events); |
766 | } |
896 | } |
767 | } |
897 | } |
768 | |
898 | |
769 | fdchangecnt = 0; |
899 | fdchangecnt = 0; |
770 | } |
900 | } |
771 | |
901 | |
772 | void inline_size |
902 | /* something about the given fd changed */ |
|
|
903 | inline_size void |
773 | fd_change (EV_P_ int fd, int flags) |
904 | fd_change (EV_P_ int fd, int flags) |
774 | { |
905 | { |
775 | unsigned char reify = anfds [fd].reify; |
906 | unsigned char reify = anfds [fd].reify; |
776 | anfds [fd].reify |= flags; |
907 | anfds [fd].reify |= flags; |
777 | |
908 | |
… | |
… | |
781 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
912 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
782 | fdchanges [fdchangecnt - 1] = fd; |
913 | fdchanges [fdchangecnt - 1] = fd; |
783 | } |
914 | } |
784 | } |
915 | } |
785 | |
916 | |
786 | void inline_speed |
917 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
|
|
918 | inline_speed void |
787 | fd_kill (EV_P_ int fd) |
919 | fd_kill (EV_P_ int fd) |
788 | { |
920 | { |
789 | ev_io *w; |
921 | ev_io *w; |
790 | |
922 | |
791 | while ((w = (ev_io *)anfds [fd].head)) |
923 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
793 | ev_io_stop (EV_A_ w); |
925 | ev_io_stop (EV_A_ w); |
794 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
926 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
795 | } |
927 | } |
796 | } |
928 | } |
797 | |
929 | |
798 | int inline_size |
930 | /* check whether the given fd is atcually valid, for error recovery */ |
|
|
931 | inline_size int |
799 | fd_valid (int fd) |
932 | fd_valid (int fd) |
800 | { |
933 | { |
801 | #ifdef _WIN32 |
934 | #ifdef _WIN32 |
802 | return _get_osfhandle (fd) != -1; |
935 | return _get_osfhandle (fd) != -1; |
803 | #else |
936 | #else |
… | |
… | |
840 | for (fd = 0; fd < anfdmax; ++fd) |
973 | for (fd = 0; fd < anfdmax; ++fd) |
841 | if (anfds [fd].events) |
974 | if (anfds [fd].events) |
842 | { |
975 | { |
843 | anfds [fd].events = 0; |
976 | anfds [fd].events = 0; |
844 | anfds [fd].emask = 0; |
977 | anfds [fd].emask = 0; |
845 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
978 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
846 | } |
979 | } |
847 | } |
980 | } |
848 | |
981 | |
849 | /*****************************************************************************/ |
982 | /*****************************************************************************/ |
850 | |
983 | |
… | |
… | |
866 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
999 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
867 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
1000 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
868 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
1001 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
869 | |
1002 | |
870 | /* away from the root */ |
1003 | /* away from the root */ |
871 | void inline_speed |
1004 | inline_speed void |
872 | downheap (ANHE *heap, int N, int k) |
1005 | downheap (ANHE *heap, int N, int k) |
873 | { |
1006 | { |
874 | ANHE he = heap [k]; |
1007 | ANHE he = heap [k]; |
875 | ANHE *E = heap + N + HEAP0; |
1008 | ANHE *E = heap + N + HEAP0; |
876 | |
1009 | |
… | |
… | |
916 | #define HEAP0 1 |
1049 | #define HEAP0 1 |
917 | #define HPARENT(k) ((k) >> 1) |
1050 | #define HPARENT(k) ((k) >> 1) |
918 | #define UPHEAP_DONE(p,k) (!(p)) |
1051 | #define UPHEAP_DONE(p,k) (!(p)) |
919 | |
1052 | |
920 | /* away from the root */ |
1053 | /* away from the root */ |
921 | void inline_speed |
1054 | inline_speed void |
922 | downheap (ANHE *heap, int N, int k) |
1055 | downheap (ANHE *heap, int N, int k) |
923 | { |
1056 | { |
924 | ANHE he = heap [k]; |
1057 | ANHE he = heap [k]; |
925 | |
1058 | |
926 | for (;;) |
1059 | for (;;) |
… | |
… | |
946 | ev_active (ANHE_w (he)) = k; |
1079 | ev_active (ANHE_w (he)) = k; |
947 | } |
1080 | } |
948 | #endif |
1081 | #endif |
949 | |
1082 | |
950 | /* towards the root */ |
1083 | /* towards the root */ |
951 | void inline_speed |
1084 | inline_speed void |
952 | upheap (ANHE *heap, int k) |
1085 | upheap (ANHE *heap, int k) |
953 | { |
1086 | { |
954 | ANHE he = heap [k]; |
1087 | ANHE he = heap [k]; |
955 | |
1088 | |
956 | for (;;) |
1089 | for (;;) |
… | |
… | |
967 | |
1100 | |
968 | heap [k] = he; |
1101 | heap [k] = he; |
969 | ev_active (ANHE_w (he)) = k; |
1102 | ev_active (ANHE_w (he)) = k; |
970 | } |
1103 | } |
971 | |
1104 | |
972 | void inline_size |
1105 | /* move an element suitably so it is in a correct place */ |
|
|
1106 | inline_size void |
973 | adjustheap (ANHE *heap, int N, int k) |
1107 | adjustheap (ANHE *heap, int N, int k) |
974 | { |
1108 | { |
975 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
1109 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
976 | upheap (heap, k); |
1110 | upheap (heap, k); |
977 | else |
1111 | else |
978 | downheap (heap, N, k); |
1112 | downheap (heap, N, k); |
979 | } |
1113 | } |
980 | |
1114 | |
981 | /* rebuild the heap: this function is used only once and executed rarely */ |
1115 | /* rebuild the heap: this function is used only once and executed rarely */ |
982 | void inline_size |
1116 | inline_size void |
983 | reheap (ANHE *heap, int N) |
1117 | reheap (ANHE *heap, int N) |
984 | { |
1118 | { |
985 | int i; |
1119 | int i; |
986 | |
1120 | |
987 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
1121 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
… | |
… | |
990 | upheap (heap, i + HEAP0); |
1124 | upheap (heap, i + HEAP0); |
991 | } |
1125 | } |
992 | |
1126 | |
993 | /*****************************************************************************/ |
1127 | /*****************************************************************************/ |
994 | |
1128 | |
|
|
1129 | /* associate signal watchers to a signal signal */ |
995 | typedef struct |
1130 | typedef struct |
996 | { |
1131 | { |
|
|
1132 | #if EV_MULTIPLICITY |
|
|
1133 | EV_P; |
|
|
1134 | #endif |
997 | WL head; |
1135 | WL head; |
998 | EV_ATOMIC_T gotsig; |
1136 | EV_ATOMIC_T gotsig; |
999 | } ANSIG; |
1137 | } ANSIG; |
1000 | |
1138 | |
1001 | static ANSIG *signals; |
1139 | static ANSIG signals [EV_NSIG - 1]; |
1002 | static int signalmax; |
|
|
1003 | |
|
|
1004 | static EV_ATOMIC_T gotsig; |
1140 | static EV_ATOMIC_T gotsig; |
1005 | |
1141 | |
1006 | /*****************************************************************************/ |
1142 | /*****************************************************************************/ |
1007 | |
1143 | |
1008 | void inline_speed |
1144 | /* used to prepare libev internal fd's */ |
|
|
1145 | /* this is not fork-safe */ |
|
|
1146 | inline_speed void |
1009 | fd_intern (int fd) |
1147 | fd_intern (int fd) |
1010 | { |
1148 | { |
1011 | #ifdef _WIN32 |
1149 | #ifdef _WIN32 |
1012 | unsigned long arg = 1; |
1150 | unsigned long arg = 1; |
1013 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
1151 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
… | |
… | |
1018 | } |
1156 | } |
1019 | |
1157 | |
1020 | static void noinline |
1158 | static void noinline |
1021 | evpipe_init (EV_P) |
1159 | evpipe_init (EV_P) |
1022 | { |
1160 | { |
1023 | if (!ev_is_active (&pipeev)) |
1161 | if (!ev_is_active (&pipe_w)) |
1024 | { |
1162 | { |
1025 | #if EV_USE_EVENTFD |
1163 | #if EV_USE_EVENTFD |
|
|
1164 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
|
|
1165 | if (evfd < 0 && errno == EINVAL) |
1026 | if ((evfd = eventfd (0, 0)) >= 0) |
1166 | evfd = eventfd (0, 0); |
|
|
1167 | |
|
|
1168 | if (evfd >= 0) |
1027 | { |
1169 | { |
1028 | evpipe [0] = -1; |
1170 | evpipe [0] = -1; |
1029 | fd_intern (evfd); |
1171 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
1030 | ev_io_set (&pipeev, evfd, EV_READ); |
1172 | ev_io_set (&pipe_w, evfd, EV_READ); |
1031 | } |
1173 | } |
1032 | else |
1174 | else |
1033 | #endif |
1175 | #endif |
1034 | { |
1176 | { |
1035 | while (pipe (evpipe)) |
1177 | while (pipe (evpipe)) |
1036 | ev_syserr ("(libev) error creating signal/async pipe"); |
1178 | ev_syserr ("(libev) error creating signal/async pipe"); |
1037 | |
1179 | |
1038 | fd_intern (evpipe [0]); |
1180 | fd_intern (evpipe [0]); |
1039 | fd_intern (evpipe [1]); |
1181 | fd_intern (evpipe [1]); |
1040 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
1182 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
1041 | } |
1183 | } |
1042 | |
1184 | |
1043 | ev_io_start (EV_A_ &pipeev); |
1185 | ev_io_start (EV_A_ &pipe_w); |
1044 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1186 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1045 | } |
1187 | } |
1046 | } |
1188 | } |
1047 | |
1189 | |
1048 | void inline_size |
1190 | inline_size void |
1049 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1191 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1050 | { |
1192 | { |
1051 | if (!*flag) |
1193 | if (!*flag) |
1052 | { |
1194 | { |
1053 | int old_errno = errno; /* save errno because write might clobber it */ |
1195 | int old_errno = errno; /* save errno because write might clobber it */ |
… | |
… | |
1066 | |
1208 | |
1067 | errno = old_errno; |
1209 | errno = old_errno; |
1068 | } |
1210 | } |
1069 | } |
1211 | } |
1070 | |
1212 | |
|
|
1213 | /* called whenever the libev signal pipe */ |
|
|
1214 | /* got some events (signal, async) */ |
1071 | static void |
1215 | static void |
1072 | pipecb (EV_P_ ev_io *iow, int revents) |
1216 | pipecb (EV_P_ ev_io *iow, int revents) |
1073 | { |
1217 | { |
1074 | #if EV_USE_EVENTFD |
1218 | #if EV_USE_EVENTFD |
1075 | if (evfd >= 0) |
1219 | if (evfd >= 0) |
… | |
… | |
1087 | if (gotsig && ev_is_default_loop (EV_A)) |
1231 | if (gotsig && ev_is_default_loop (EV_A)) |
1088 | { |
1232 | { |
1089 | int signum; |
1233 | int signum; |
1090 | gotsig = 0; |
1234 | gotsig = 0; |
1091 | |
1235 | |
1092 | for (signum = signalmax; signum--; ) |
1236 | for (signum = EV_NSIG - 1; signum--; ) |
1093 | if (signals [signum].gotsig) |
1237 | if (signals [signum].gotsig) |
1094 | ev_feed_signal_event (EV_A_ signum + 1); |
1238 | ev_feed_signal_event (EV_A_ signum + 1); |
1095 | } |
1239 | } |
1096 | |
1240 | |
1097 | #if EV_ASYNC_ENABLE |
1241 | #if EV_ASYNC_ENABLE |
… | |
… | |
1114 | |
1258 | |
1115 | static void |
1259 | static void |
1116 | ev_sighandler (int signum) |
1260 | ev_sighandler (int signum) |
1117 | { |
1261 | { |
1118 | #if EV_MULTIPLICITY |
1262 | #if EV_MULTIPLICITY |
1119 | struct ev_loop *loop = &default_loop_struct; |
1263 | EV_P = signals [signum - 1].loop; |
1120 | #endif |
1264 | #endif |
1121 | |
1265 | |
1122 | #if _WIN32 |
1266 | #if _WIN32 |
1123 | signal (signum, ev_sighandler); |
1267 | signal (signum, ev_sighandler); |
1124 | #endif |
1268 | #endif |
… | |
… | |
1134 | |
1278 | |
1135 | #if EV_MULTIPLICITY |
1279 | #if EV_MULTIPLICITY |
1136 | assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1280 | assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1137 | #endif |
1281 | #endif |
1138 | |
1282 | |
|
|
1283 | if (signum <= 0 || signum > EV_NSIG) |
|
|
1284 | return; |
|
|
1285 | |
1139 | --signum; |
1286 | --signum; |
1140 | |
|
|
1141 | if (signum < 0 || signum >= signalmax) |
|
|
1142 | return; |
|
|
1143 | |
1287 | |
1144 | signals [signum].gotsig = 0; |
1288 | signals [signum].gotsig = 0; |
1145 | |
1289 | |
1146 | for (w = signals [signum].head; w; w = w->next) |
1290 | for (w = signals [signum].head; w; w = w->next) |
1147 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1291 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1148 | } |
1292 | } |
1149 | |
1293 | |
|
|
1294 | #if EV_USE_SIGNALFD |
|
|
1295 | static void |
|
|
1296 | sigfdcb (EV_P_ ev_io *iow, int revents) |
|
|
1297 | { |
|
|
1298 | struct signalfd_siginfo si[2], *sip; /* these structs are big */ |
|
|
1299 | |
|
|
1300 | for (;;) |
|
|
1301 | { |
|
|
1302 | ssize_t res = read (sigfd, si, sizeof (si)); |
|
|
1303 | |
|
|
1304 | /* not ISO-C, as res might be -1, but works with SuS */ |
|
|
1305 | for (sip = si; (char *)sip < (char *)si + res; ++sip) |
|
|
1306 | ev_feed_signal_event (EV_A_ sip->ssi_signo); |
|
|
1307 | |
|
|
1308 | if (res < (ssize_t)sizeof (si)) |
|
|
1309 | break; |
|
|
1310 | } |
|
|
1311 | } |
|
|
1312 | #endif |
|
|
1313 | |
1150 | /*****************************************************************************/ |
1314 | /*****************************************************************************/ |
1151 | |
1315 | |
1152 | static WL childs [EV_PID_HASHSIZE]; |
1316 | static WL childs [EV_PID_HASHSIZE]; |
1153 | |
1317 | |
1154 | #ifndef _WIN32 |
1318 | #ifndef _WIN32 |
… | |
… | |
1157 | |
1321 | |
1158 | #ifndef WIFCONTINUED |
1322 | #ifndef WIFCONTINUED |
1159 | # define WIFCONTINUED(status) 0 |
1323 | # define WIFCONTINUED(status) 0 |
1160 | #endif |
1324 | #endif |
1161 | |
1325 | |
1162 | void inline_speed |
1326 | /* handle a single child status event */ |
|
|
1327 | inline_speed void |
1163 | child_reap (EV_P_ int chain, int pid, int status) |
1328 | child_reap (EV_P_ int chain, int pid, int status) |
1164 | { |
1329 | { |
1165 | ev_child *w; |
1330 | ev_child *w; |
1166 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1331 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1167 | |
1332 | |
… | |
… | |
1180 | |
1345 | |
1181 | #ifndef WCONTINUED |
1346 | #ifndef WCONTINUED |
1182 | # define WCONTINUED 0 |
1347 | # define WCONTINUED 0 |
1183 | #endif |
1348 | #endif |
1184 | |
1349 | |
|
|
1350 | /* called on sigchld etc., calls waitpid */ |
1185 | static void |
1351 | static void |
1186 | childcb (EV_P_ ev_signal *sw, int revents) |
1352 | childcb (EV_P_ ev_signal *sw, int revents) |
1187 | { |
1353 | { |
1188 | int pid, status; |
1354 | int pid, status; |
1189 | |
1355 | |
… | |
… | |
1296 | ev_backend (EV_P) |
1462 | ev_backend (EV_P) |
1297 | { |
1463 | { |
1298 | return backend; |
1464 | return backend; |
1299 | } |
1465 | } |
1300 | |
1466 | |
|
|
1467 | #if EV_MINIMAL < 2 |
1301 | unsigned int |
1468 | unsigned int |
1302 | ev_loop_count (EV_P) |
1469 | ev_loop_count (EV_P) |
1303 | { |
1470 | { |
1304 | return loop_count; |
1471 | return loop_count; |
1305 | } |
1472 | } |
1306 | |
1473 | |
|
|
1474 | unsigned int |
|
|
1475 | ev_loop_depth (EV_P) |
|
|
1476 | { |
|
|
1477 | return loop_depth; |
|
|
1478 | } |
|
|
1479 | |
1307 | void |
1480 | void |
1308 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1481 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1309 | { |
1482 | { |
1310 | io_blocktime = interval; |
1483 | io_blocktime = interval; |
1311 | } |
1484 | } |
… | |
… | |
1314 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1487 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1315 | { |
1488 | { |
1316 | timeout_blocktime = interval; |
1489 | timeout_blocktime = interval; |
1317 | } |
1490 | } |
1318 | |
1491 | |
|
|
1492 | void |
|
|
1493 | ev_set_userdata (EV_P_ void *data) |
|
|
1494 | { |
|
|
1495 | userdata = data; |
|
|
1496 | } |
|
|
1497 | |
|
|
1498 | void * |
|
|
1499 | ev_userdata (EV_P) |
|
|
1500 | { |
|
|
1501 | return userdata; |
|
|
1502 | } |
|
|
1503 | |
|
|
1504 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
|
|
1505 | { |
|
|
1506 | invoke_cb = invoke_pending_cb; |
|
|
1507 | } |
|
|
1508 | |
|
|
1509 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
|
|
1510 | { |
|
|
1511 | release_cb = release; |
|
|
1512 | acquire_cb = acquire; |
|
|
1513 | } |
|
|
1514 | #endif |
|
|
1515 | |
|
|
1516 | /* initialise a loop structure, must be zero-initialised */ |
1319 | static void noinline |
1517 | static void noinline |
1320 | loop_init (EV_P_ unsigned int flags) |
1518 | loop_init (EV_P_ unsigned int flags) |
1321 | { |
1519 | { |
1322 | if (!backend) |
1520 | if (!backend) |
1323 | { |
1521 | { |
|
|
1522 | #if EV_USE_REALTIME |
|
|
1523 | if (!have_realtime) |
|
|
1524 | { |
|
|
1525 | struct timespec ts; |
|
|
1526 | |
|
|
1527 | if (!clock_gettime (CLOCK_REALTIME, &ts)) |
|
|
1528 | have_realtime = 1; |
|
|
1529 | } |
|
|
1530 | #endif |
|
|
1531 | |
1324 | #if EV_USE_MONOTONIC |
1532 | #if EV_USE_MONOTONIC |
|
|
1533 | if (!have_monotonic) |
1325 | { |
1534 | { |
1326 | struct timespec ts; |
1535 | struct timespec ts; |
|
|
1536 | |
1327 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1537 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1328 | have_monotonic = 1; |
1538 | have_monotonic = 1; |
1329 | } |
1539 | } |
1330 | #endif |
1540 | #endif |
|
|
1541 | |
|
|
1542 | /* pid check not overridable via env */ |
|
|
1543 | #ifndef _WIN32 |
|
|
1544 | if (flags & EVFLAG_FORKCHECK) |
|
|
1545 | curpid = getpid (); |
|
|
1546 | #endif |
|
|
1547 | |
|
|
1548 | if (!(flags & EVFLAG_NOENV) |
|
|
1549 | && !enable_secure () |
|
|
1550 | && getenv ("LIBEV_FLAGS")) |
|
|
1551 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1331 | |
1552 | |
1332 | ev_rt_now = ev_time (); |
1553 | ev_rt_now = ev_time (); |
1333 | mn_now = get_clock (); |
1554 | mn_now = get_clock (); |
1334 | now_floor = mn_now; |
1555 | now_floor = mn_now; |
1335 | rtmn_diff = ev_rt_now - mn_now; |
1556 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1557 | #if EV_MINIMAL < 2 |
|
|
1558 | invoke_cb = ev_invoke_pending; |
|
|
1559 | #endif |
1336 | |
1560 | |
1337 | io_blocktime = 0.; |
1561 | io_blocktime = 0.; |
1338 | timeout_blocktime = 0.; |
1562 | timeout_blocktime = 0.; |
1339 | backend = 0; |
1563 | backend = 0; |
1340 | backend_fd = -1; |
1564 | backend_fd = -1; |
1341 | gotasync = 0; |
1565 | gotasync = 0; |
1342 | #if EV_USE_INOTIFY |
1566 | #if EV_USE_INOTIFY |
1343 | fs_fd = -2; |
1567 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1344 | #endif |
1568 | #endif |
1345 | |
1569 | #if EV_USE_SIGNALFD |
1346 | /* pid check not overridable via env */ |
1570 | sigfd = flags & EVFLAG_NOSIGFD ? -1 : -2; |
1347 | #ifndef _WIN32 |
|
|
1348 | if (flags & EVFLAG_FORKCHECK) |
|
|
1349 | curpid = getpid (); |
|
|
1350 | #endif |
1571 | #endif |
1351 | |
|
|
1352 | if (!(flags & EVFLAG_NOENV) |
|
|
1353 | && !enable_secure () |
|
|
1354 | && getenv ("LIBEV_FLAGS")) |
|
|
1355 | flags = atoi (getenv ("LIBEV_FLAGS")); |
|
|
1356 | |
1572 | |
1357 | if (!(flags & 0x0000ffffU)) |
1573 | if (!(flags & 0x0000ffffU)) |
1358 | flags |= ev_recommended_backends (); |
1574 | flags |= ev_recommended_backends (); |
1359 | |
1575 | |
1360 | #if EV_USE_PORT |
1576 | #if EV_USE_PORT |
… | |
… | |
1371 | #endif |
1587 | #endif |
1372 | #if EV_USE_SELECT |
1588 | #if EV_USE_SELECT |
1373 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1589 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1374 | #endif |
1590 | #endif |
1375 | |
1591 | |
|
|
1592 | ev_prepare_init (&pending_w, pendingcb); |
|
|
1593 | |
1376 | ev_init (&pipeev, pipecb); |
1594 | ev_init (&pipe_w, pipecb); |
1377 | ev_set_priority (&pipeev, EV_MAXPRI); |
1595 | ev_set_priority (&pipe_w, EV_MAXPRI); |
1378 | } |
1596 | } |
1379 | } |
1597 | } |
1380 | |
1598 | |
|
|
1599 | /* free up a loop structure */ |
1381 | static void noinline |
1600 | static void noinline |
1382 | loop_destroy (EV_P) |
1601 | loop_destroy (EV_P) |
1383 | { |
1602 | { |
1384 | int i; |
1603 | int i; |
1385 | |
1604 | |
1386 | if (ev_is_active (&pipeev)) |
1605 | if (ev_is_active (&pipe_w)) |
1387 | { |
1606 | { |
1388 | ev_ref (EV_A); /* signal watcher */ |
1607 | /*ev_ref (EV_A);*/ |
1389 | ev_io_stop (EV_A_ &pipeev); |
1608 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1390 | |
1609 | |
1391 | #if EV_USE_EVENTFD |
1610 | #if EV_USE_EVENTFD |
1392 | if (evfd >= 0) |
1611 | if (evfd >= 0) |
1393 | close (evfd); |
1612 | close (evfd); |
1394 | #endif |
1613 | #endif |
… | |
… | |
1398 | close (evpipe [0]); |
1617 | close (evpipe [0]); |
1399 | close (evpipe [1]); |
1618 | close (evpipe [1]); |
1400 | } |
1619 | } |
1401 | } |
1620 | } |
1402 | |
1621 | |
|
|
1622 | #if EV_USE_SIGNALFD |
|
|
1623 | if (ev_is_active (&sigfd_w)) |
|
|
1624 | { |
|
|
1625 | /*ev_ref (EV_A);*/ |
|
|
1626 | /*ev_io_stop (EV_A_ &sigfd_w);*/ |
|
|
1627 | |
|
|
1628 | close (sigfd); |
|
|
1629 | } |
|
|
1630 | #endif |
|
|
1631 | |
1403 | #if EV_USE_INOTIFY |
1632 | #if EV_USE_INOTIFY |
1404 | if (fs_fd >= 0) |
1633 | if (fs_fd >= 0) |
1405 | close (fs_fd); |
1634 | close (fs_fd); |
1406 | #endif |
1635 | #endif |
1407 | |
1636 | |
… | |
… | |
1430 | #if EV_IDLE_ENABLE |
1659 | #if EV_IDLE_ENABLE |
1431 | array_free (idle, [i]); |
1660 | array_free (idle, [i]); |
1432 | #endif |
1661 | #endif |
1433 | } |
1662 | } |
1434 | |
1663 | |
1435 | ev_free (anfds); anfdmax = 0; |
1664 | ev_free (anfds); anfds = 0; anfdmax = 0; |
1436 | |
1665 | |
1437 | /* have to use the microsoft-never-gets-it-right macro */ |
1666 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
1667 | array_free (rfeed, EMPTY); |
1438 | array_free (fdchange, EMPTY); |
1668 | array_free (fdchange, EMPTY); |
1439 | array_free (timer, EMPTY); |
1669 | array_free (timer, EMPTY); |
1440 | #if EV_PERIODIC_ENABLE |
1670 | #if EV_PERIODIC_ENABLE |
1441 | array_free (periodic, EMPTY); |
1671 | array_free (periodic, EMPTY); |
1442 | #endif |
1672 | #endif |
… | |
… | |
1451 | |
1681 | |
1452 | backend = 0; |
1682 | backend = 0; |
1453 | } |
1683 | } |
1454 | |
1684 | |
1455 | #if EV_USE_INOTIFY |
1685 | #if EV_USE_INOTIFY |
1456 | void inline_size infy_fork (EV_P); |
1686 | inline_size void infy_fork (EV_P); |
1457 | #endif |
1687 | #endif |
1458 | |
1688 | |
1459 | void inline_size |
1689 | inline_size void |
1460 | loop_fork (EV_P) |
1690 | loop_fork (EV_P) |
1461 | { |
1691 | { |
1462 | #if EV_USE_PORT |
1692 | #if EV_USE_PORT |
1463 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1693 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1464 | #endif |
1694 | #endif |
… | |
… | |
1470 | #endif |
1700 | #endif |
1471 | #if EV_USE_INOTIFY |
1701 | #if EV_USE_INOTIFY |
1472 | infy_fork (EV_A); |
1702 | infy_fork (EV_A); |
1473 | #endif |
1703 | #endif |
1474 | |
1704 | |
1475 | if (ev_is_active (&pipeev)) |
1705 | if (ev_is_active (&pipe_w)) |
1476 | { |
1706 | { |
1477 | /* this "locks" the handlers against writing to the pipe */ |
1707 | /* this "locks" the handlers against writing to the pipe */ |
1478 | /* while we modify the fd vars */ |
1708 | /* while we modify the fd vars */ |
1479 | gotsig = 1; |
1709 | gotsig = 1; |
1480 | #if EV_ASYNC_ENABLE |
1710 | #if EV_ASYNC_ENABLE |
1481 | gotasync = 1; |
1711 | gotasync = 1; |
1482 | #endif |
1712 | #endif |
1483 | |
1713 | |
1484 | ev_ref (EV_A); |
1714 | ev_ref (EV_A); |
1485 | ev_io_stop (EV_A_ &pipeev); |
1715 | ev_io_stop (EV_A_ &pipe_w); |
1486 | |
1716 | |
1487 | #if EV_USE_EVENTFD |
1717 | #if EV_USE_EVENTFD |
1488 | if (evfd >= 0) |
1718 | if (evfd >= 0) |
1489 | close (evfd); |
1719 | close (evfd); |
1490 | #endif |
1720 | #endif |
… | |
… | |
1495 | close (evpipe [1]); |
1725 | close (evpipe [1]); |
1496 | } |
1726 | } |
1497 | |
1727 | |
1498 | evpipe_init (EV_A); |
1728 | evpipe_init (EV_A); |
1499 | /* now iterate over everything, in case we missed something */ |
1729 | /* now iterate over everything, in case we missed something */ |
1500 | pipecb (EV_A_ &pipeev, EV_READ); |
1730 | pipecb (EV_A_ &pipe_w, EV_READ); |
1501 | } |
1731 | } |
1502 | |
1732 | |
1503 | postfork = 0; |
1733 | postfork = 0; |
1504 | } |
1734 | } |
1505 | |
1735 | |
1506 | #if EV_MULTIPLICITY |
1736 | #if EV_MULTIPLICITY |
1507 | |
1737 | |
1508 | struct ev_loop * |
1738 | struct ev_loop * |
1509 | ev_loop_new (unsigned int flags) |
1739 | ev_loop_new (unsigned int flags) |
1510 | { |
1740 | { |
1511 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1741 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1512 | |
1742 | |
1513 | memset (loop, 0, sizeof (struct ev_loop)); |
1743 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1514 | |
|
|
1515 | loop_init (EV_A_ flags); |
1744 | loop_init (EV_A_ flags); |
1516 | |
1745 | |
1517 | if (ev_backend (EV_A)) |
1746 | if (ev_backend (EV_A)) |
1518 | return loop; |
1747 | return EV_A; |
1519 | |
1748 | |
1520 | return 0; |
1749 | return 0; |
1521 | } |
1750 | } |
1522 | |
1751 | |
1523 | void |
1752 | void |
… | |
… | |
1530 | void |
1759 | void |
1531 | ev_loop_fork (EV_P) |
1760 | ev_loop_fork (EV_P) |
1532 | { |
1761 | { |
1533 | postfork = 1; /* must be in line with ev_default_fork */ |
1762 | postfork = 1; /* must be in line with ev_default_fork */ |
1534 | } |
1763 | } |
|
|
1764 | #endif /* multiplicity */ |
1535 | |
1765 | |
1536 | #if EV_VERIFY |
1766 | #if EV_VERIFY |
1537 | static void noinline |
1767 | static void noinline |
1538 | verify_watcher (EV_P_ W w) |
1768 | verify_watcher (EV_P_ W w) |
1539 | { |
1769 | { |
… | |
… | |
1567 | verify_watcher (EV_A_ ws [cnt]); |
1797 | verify_watcher (EV_A_ ws [cnt]); |
1568 | } |
1798 | } |
1569 | } |
1799 | } |
1570 | #endif |
1800 | #endif |
1571 | |
1801 | |
|
|
1802 | #if EV_MINIMAL < 2 |
1572 | void |
1803 | void |
1573 | ev_loop_verify (EV_P) |
1804 | ev_loop_verify (EV_P) |
1574 | { |
1805 | { |
1575 | #if EV_VERIFY |
1806 | #if EV_VERIFY |
1576 | int i; |
1807 | int i; |
… | |
… | |
1625 | assert (checkmax >= checkcnt); |
1856 | assert (checkmax >= checkcnt); |
1626 | array_verify (EV_A_ (W *)checks, checkcnt); |
1857 | array_verify (EV_A_ (W *)checks, checkcnt); |
1627 | |
1858 | |
1628 | # if 0 |
1859 | # if 0 |
1629 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1860 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1630 | for (signum = signalmax; signum--; ) if (signals [signum].gotsig) |
1861 | for (signum = EV_NSIG; signum--; ) if (signals [signum].gotsig) |
1631 | # endif |
1862 | # endif |
1632 | #endif |
1863 | #endif |
1633 | } |
1864 | } |
1634 | |
1865 | #endif |
1635 | #endif /* multiplicity */ |
|
|
1636 | |
1866 | |
1637 | #if EV_MULTIPLICITY |
1867 | #if EV_MULTIPLICITY |
1638 | struct ev_loop * |
1868 | struct ev_loop * |
1639 | ev_default_loop_init (unsigned int flags) |
1869 | ev_default_loop_init (unsigned int flags) |
1640 | #else |
1870 | #else |
… | |
… | |
1643 | #endif |
1873 | #endif |
1644 | { |
1874 | { |
1645 | if (!ev_default_loop_ptr) |
1875 | if (!ev_default_loop_ptr) |
1646 | { |
1876 | { |
1647 | #if EV_MULTIPLICITY |
1877 | #if EV_MULTIPLICITY |
1648 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1878 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
1649 | #else |
1879 | #else |
1650 | ev_default_loop_ptr = 1; |
1880 | ev_default_loop_ptr = 1; |
1651 | #endif |
1881 | #endif |
1652 | |
1882 | |
1653 | loop_init (EV_A_ flags); |
1883 | loop_init (EV_A_ flags); |
… | |
… | |
1670 | |
1900 | |
1671 | void |
1901 | void |
1672 | ev_default_destroy (void) |
1902 | ev_default_destroy (void) |
1673 | { |
1903 | { |
1674 | #if EV_MULTIPLICITY |
1904 | #if EV_MULTIPLICITY |
1675 | struct ev_loop *loop = ev_default_loop_ptr; |
1905 | EV_P = ev_default_loop_ptr; |
1676 | #endif |
1906 | #endif |
1677 | |
1907 | |
1678 | ev_default_loop_ptr = 0; |
1908 | ev_default_loop_ptr = 0; |
1679 | |
1909 | |
1680 | #ifndef _WIN32 |
1910 | #ifndef _WIN32 |
… | |
… | |
1687 | |
1917 | |
1688 | void |
1918 | void |
1689 | ev_default_fork (void) |
1919 | ev_default_fork (void) |
1690 | { |
1920 | { |
1691 | #if EV_MULTIPLICITY |
1921 | #if EV_MULTIPLICITY |
1692 | struct ev_loop *loop = ev_default_loop_ptr; |
1922 | EV_P = ev_default_loop_ptr; |
1693 | #endif |
1923 | #endif |
1694 | |
1924 | |
1695 | postfork = 1; /* must be in line with ev_loop_fork */ |
1925 | postfork = 1; /* must be in line with ev_loop_fork */ |
1696 | } |
1926 | } |
1697 | |
1927 | |
… | |
… | |
1701 | ev_invoke (EV_P_ void *w, int revents) |
1931 | ev_invoke (EV_P_ void *w, int revents) |
1702 | { |
1932 | { |
1703 | EV_CB_INVOKE ((W)w, revents); |
1933 | EV_CB_INVOKE ((W)w, revents); |
1704 | } |
1934 | } |
1705 | |
1935 | |
1706 | void inline_speed |
1936 | unsigned int |
1707 | call_pending (EV_P) |
1937 | ev_pending_count (EV_P) |
|
|
1938 | { |
|
|
1939 | int pri; |
|
|
1940 | unsigned int count = 0; |
|
|
1941 | |
|
|
1942 | for (pri = NUMPRI; pri--; ) |
|
|
1943 | count += pendingcnt [pri]; |
|
|
1944 | |
|
|
1945 | return count; |
|
|
1946 | } |
|
|
1947 | |
|
|
1948 | void noinline |
|
|
1949 | ev_invoke_pending (EV_P) |
1708 | { |
1950 | { |
1709 | int pri; |
1951 | int pri; |
1710 | |
1952 | |
1711 | for (pri = NUMPRI; pri--; ) |
1953 | for (pri = NUMPRI; pri--; ) |
1712 | while (pendingcnt [pri]) |
1954 | while (pendingcnt [pri]) |
1713 | { |
1955 | { |
1714 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1956 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1715 | |
1957 | |
1716 | if (expect_true (p->w)) |
|
|
1717 | { |
|
|
1718 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
1958 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
|
|
1959 | /* ^ this is no longer true, as pending_w could be here */ |
1719 | |
1960 | |
1720 | p->w->pending = 0; |
1961 | p->w->pending = 0; |
1721 | EV_CB_INVOKE (p->w, p->events); |
1962 | EV_CB_INVOKE (p->w, p->events); |
1722 | EV_FREQUENT_CHECK; |
1963 | EV_FREQUENT_CHECK; |
1723 | } |
|
|
1724 | } |
1964 | } |
1725 | } |
1965 | } |
1726 | |
1966 | |
1727 | #if EV_IDLE_ENABLE |
1967 | #if EV_IDLE_ENABLE |
1728 | void inline_size |
1968 | /* make idle watchers pending. this handles the "call-idle */ |
|
|
1969 | /* only when higher priorities are idle" logic */ |
|
|
1970 | inline_size void |
1729 | idle_reify (EV_P) |
1971 | idle_reify (EV_P) |
1730 | { |
1972 | { |
1731 | if (expect_false (idleall)) |
1973 | if (expect_false (idleall)) |
1732 | { |
1974 | { |
1733 | int pri; |
1975 | int pri; |
… | |
… | |
1745 | } |
1987 | } |
1746 | } |
1988 | } |
1747 | } |
1989 | } |
1748 | #endif |
1990 | #endif |
1749 | |
1991 | |
1750 | void inline_size |
1992 | /* make timers pending */ |
|
|
1993 | inline_size void |
1751 | timers_reify (EV_P) |
1994 | timers_reify (EV_P) |
1752 | { |
1995 | { |
1753 | EV_FREQUENT_CHECK; |
1996 | EV_FREQUENT_CHECK; |
1754 | |
1997 | |
1755 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
1998 | if (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
1756 | { |
1999 | { |
1757 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
2000 | do |
1758 | |
|
|
1759 | /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1760 | |
|
|
1761 | /* first reschedule or stop timer */ |
|
|
1762 | if (w->repeat) |
|
|
1763 | { |
2001 | { |
|
|
2002 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
|
|
2003 | |
|
|
2004 | /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
2005 | |
|
|
2006 | /* first reschedule or stop timer */ |
|
|
2007 | if (w->repeat) |
|
|
2008 | { |
1764 | ev_at (w) += w->repeat; |
2009 | ev_at (w) += w->repeat; |
1765 | if (ev_at (w) < mn_now) |
2010 | if (ev_at (w) < mn_now) |
1766 | ev_at (w) = mn_now; |
2011 | ev_at (w) = mn_now; |
1767 | |
2012 | |
1768 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
2013 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1769 | |
2014 | |
1770 | ANHE_at_cache (timers [HEAP0]); |
2015 | ANHE_at_cache (timers [HEAP0]); |
1771 | downheap (timers, timercnt, HEAP0); |
2016 | downheap (timers, timercnt, HEAP0); |
|
|
2017 | } |
|
|
2018 | else |
|
|
2019 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2020 | |
|
|
2021 | EV_FREQUENT_CHECK; |
|
|
2022 | feed_reverse (EV_A_ (W)w); |
1772 | } |
2023 | } |
1773 | else |
2024 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
1774 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1775 | |
2025 | |
1776 | EV_FREQUENT_CHECK; |
|
|
1777 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
2026 | feed_reverse_done (EV_A_ EV_TIMEOUT); |
1778 | } |
2027 | } |
1779 | } |
2028 | } |
1780 | |
2029 | |
1781 | #if EV_PERIODIC_ENABLE |
2030 | #if EV_PERIODIC_ENABLE |
1782 | void inline_size |
2031 | /* make periodics pending */ |
|
|
2032 | inline_size void |
1783 | periodics_reify (EV_P) |
2033 | periodics_reify (EV_P) |
1784 | { |
2034 | { |
1785 | EV_FREQUENT_CHECK; |
2035 | EV_FREQUENT_CHECK; |
1786 | |
2036 | |
1787 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
2037 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
1788 | { |
2038 | { |
1789 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
2039 | int feed_count = 0; |
1790 | |
2040 | |
1791 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
2041 | do |
1792 | |
|
|
1793 | /* first reschedule or stop timer */ |
|
|
1794 | if (w->reschedule_cb) |
|
|
1795 | { |
2042 | { |
|
|
2043 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
|
|
2044 | |
|
|
2045 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
2046 | |
|
|
2047 | /* first reschedule or stop timer */ |
|
|
2048 | if (w->reschedule_cb) |
|
|
2049 | { |
1796 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2050 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1797 | |
2051 | |
1798 | assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
2052 | assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
1799 | |
2053 | |
1800 | ANHE_at_cache (periodics [HEAP0]); |
2054 | ANHE_at_cache (periodics [HEAP0]); |
1801 | downheap (periodics, periodiccnt, HEAP0); |
2055 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2056 | } |
|
|
2057 | else if (w->interval) |
|
|
2058 | { |
|
|
2059 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2060 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
2061 | /* this might happen because of floating point inexactness */ |
|
|
2062 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
2063 | { |
|
|
2064 | ev_at (w) += w->interval; |
|
|
2065 | |
|
|
2066 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
2067 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
2068 | /* has effectively asked to get triggered more often than possible */ |
|
|
2069 | if (ev_at (w) < ev_rt_now) |
|
|
2070 | ev_at (w) = ev_rt_now; |
|
|
2071 | } |
|
|
2072 | |
|
|
2073 | ANHE_at_cache (periodics [HEAP0]); |
|
|
2074 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2075 | } |
|
|
2076 | else |
|
|
2077 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2078 | |
|
|
2079 | EV_FREQUENT_CHECK; |
|
|
2080 | feed_reverse (EV_A_ (W)w); |
1802 | } |
2081 | } |
1803 | else if (w->interval) |
2082 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now); |
1804 | { |
|
|
1805 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1806 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
1807 | /* this might happen because of floating point inexactness */ |
|
|
1808 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
1809 | { |
|
|
1810 | ev_at (w) += w->interval; |
|
|
1811 | |
2083 | |
1812 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
1813 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
1814 | /* has effectively asked to get triggered more often than possible */ |
|
|
1815 | if (ev_at (w) < ev_rt_now) |
|
|
1816 | ev_at (w) = ev_rt_now; |
|
|
1817 | } |
|
|
1818 | |
|
|
1819 | ANHE_at_cache (periodics [HEAP0]); |
|
|
1820 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1821 | } |
|
|
1822 | else |
|
|
1823 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1824 | |
|
|
1825 | EV_FREQUENT_CHECK; |
|
|
1826 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
2084 | feed_reverse_done (EV_A_ EV_PERIODIC); |
1827 | } |
2085 | } |
1828 | } |
2086 | } |
1829 | |
2087 | |
|
|
2088 | /* simply recalculate all periodics */ |
|
|
2089 | /* TODO: maybe ensure that at leats one event happens when jumping forward? */ |
1830 | static void noinline |
2090 | static void noinline |
1831 | periodics_reschedule (EV_P) |
2091 | periodics_reschedule (EV_P) |
1832 | { |
2092 | { |
1833 | int i; |
2093 | int i; |
1834 | |
2094 | |
… | |
… | |
1847 | |
2107 | |
1848 | reheap (periodics, periodiccnt); |
2108 | reheap (periodics, periodiccnt); |
1849 | } |
2109 | } |
1850 | #endif |
2110 | #endif |
1851 | |
2111 | |
1852 | void inline_speed |
2112 | /* adjust all timers by a given offset */ |
|
|
2113 | static void noinline |
|
|
2114 | timers_reschedule (EV_P_ ev_tstamp adjust) |
|
|
2115 | { |
|
|
2116 | int i; |
|
|
2117 | |
|
|
2118 | for (i = 0; i < timercnt; ++i) |
|
|
2119 | { |
|
|
2120 | ANHE *he = timers + i + HEAP0; |
|
|
2121 | ANHE_w (*he)->at += adjust; |
|
|
2122 | ANHE_at_cache (*he); |
|
|
2123 | } |
|
|
2124 | } |
|
|
2125 | |
|
|
2126 | /* fetch new monotonic and realtime times from the kernel */ |
|
|
2127 | /* also detetc if there was a timejump, and act accordingly */ |
|
|
2128 | inline_speed void |
1853 | time_update (EV_P_ ev_tstamp max_block) |
2129 | time_update (EV_P_ ev_tstamp max_block) |
1854 | { |
2130 | { |
1855 | int i; |
|
|
1856 | |
|
|
1857 | #if EV_USE_MONOTONIC |
2131 | #if EV_USE_MONOTONIC |
1858 | if (expect_true (have_monotonic)) |
2132 | if (expect_true (have_monotonic)) |
1859 | { |
2133 | { |
|
|
2134 | int i; |
1860 | ev_tstamp odiff = rtmn_diff; |
2135 | ev_tstamp odiff = rtmn_diff; |
1861 | |
2136 | |
1862 | mn_now = get_clock (); |
2137 | mn_now = get_clock (); |
1863 | |
2138 | |
1864 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
2139 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
… | |
… | |
1890 | ev_rt_now = ev_time (); |
2165 | ev_rt_now = ev_time (); |
1891 | mn_now = get_clock (); |
2166 | mn_now = get_clock (); |
1892 | now_floor = mn_now; |
2167 | now_floor = mn_now; |
1893 | } |
2168 | } |
1894 | |
2169 | |
|
|
2170 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
2171 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1895 | # if EV_PERIODIC_ENABLE |
2172 | # if EV_PERIODIC_ENABLE |
1896 | periodics_reschedule (EV_A); |
2173 | periodics_reschedule (EV_A); |
1897 | # endif |
2174 | # endif |
1898 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1899 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1900 | } |
2175 | } |
1901 | else |
2176 | else |
1902 | #endif |
2177 | #endif |
1903 | { |
2178 | { |
1904 | ev_rt_now = ev_time (); |
2179 | ev_rt_now = ev_time (); |
1905 | |
2180 | |
1906 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
2181 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
1907 | { |
2182 | { |
|
|
2183 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
2184 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
1908 | #if EV_PERIODIC_ENABLE |
2185 | #if EV_PERIODIC_ENABLE |
1909 | periodics_reschedule (EV_A); |
2186 | periodics_reschedule (EV_A); |
1910 | #endif |
2187 | #endif |
1911 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1912 | for (i = 0; i < timercnt; ++i) |
|
|
1913 | { |
|
|
1914 | ANHE *he = timers + i + HEAP0; |
|
|
1915 | ANHE_w (*he)->at += ev_rt_now - mn_now; |
|
|
1916 | ANHE_at_cache (*he); |
|
|
1917 | } |
|
|
1918 | } |
2188 | } |
1919 | |
2189 | |
1920 | mn_now = ev_rt_now; |
2190 | mn_now = ev_rt_now; |
1921 | } |
2191 | } |
1922 | } |
2192 | } |
1923 | |
2193 | |
1924 | void |
2194 | void |
1925 | ev_ref (EV_P) |
|
|
1926 | { |
|
|
1927 | ++activecnt; |
|
|
1928 | } |
|
|
1929 | |
|
|
1930 | void |
|
|
1931 | ev_unref (EV_P) |
|
|
1932 | { |
|
|
1933 | --activecnt; |
|
|
1934 | } |
|
|
1935 | |
|
|
1936 | void |
|
|
1937 | ev_now_update (EV_P) |
|
|
1938 | { |
|
|
1939 | time_update (EV_A_ 1e100); |
|
|
1940 | } |
|
|
1941 | |
|
|
1942 | static int loop_done; |
|
|
1943 | |
|
|
1944 | void |
|
|
1945 | ev_loop (EV_P_ int flags) |
2195 | ev_loop (EV_P_ int flags) |
1946 | { |
2196 | { |
|
|
2197 | #if EV_MINIMAL < 2 |
|
|
2198 | ++loop_depth; |
|
|
2199 | #endif |
|
|
2200 | |
|
|
2201 | assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); |
|
|
2202 | |
1947 | loop_done = EVUNLOOP_CANCEL; |
2203 | loop_done = EVUNLOOP_CANCEL; |
1948 | |
2204 | |
1949 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
2205 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
1950 | |
2206 | |
1951 | do |
2207 | do |
1952 | { |
2208 | { |
1953 | #if EV_VERIFY >= 2 |
2209 | #if EV_VERIFY >= 2 |
1954 | ev_loop_verify (EV_A); |
2210 | ev_loop_verify (EV_A); |
… | |
… | |
1967 | /* we might have forked, so queue fork handlers */ |
2223 | /* we might have forked, so queue fork handlers */ |
1968 | if (expect_false (postfork)) |
2224 | if (expect_false (postfork)) |
1969 | if (forkcnt) |
2225 | if (forkcnt) |
1970 | { |
2226 | { |
1971 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2227 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
1972 | call_pending (EV_A); |
2228 | EV_INVOKE_PENDING; |
1973 | } |
2229 | } |
1974 | #endif |
2230 | #endif |
1975 | |
2231 | |
1976 | /* queue prepare watchers (and execute them) */ |
2232 | /* queue prepare watchers (and execute them) */ |
1977 | if (expect_false (preparecnt)) |
2233 | if (expect_false (preparecnt)) |
1978 | { |
2234 | { |
1979 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2235 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1980 | call_pending (EV_A); |
2236 | EV_INVOKE_PENDING; |
1981 | } |
2237 | } |
1982 | |
2238 | |
1983 | if (expect_false (!activecnt)) |
2239 | if (expect_false (loop_done)) |
1984 | break; |
2240 | break; |
1985 | |
2241 | |
1986 | /* we might have forked, so reify kernel state if necessary */ |
2242 | /* we might have forked, so reify kernel state if necessary */ |
1987 | if (expect_false (postfork)) |
2243 | if (expect_false (postfork)) |
1988 | loop_fork (EV_A); |
2244 | loop_fork (EV_A); |
… | |
… | |
1995 | ev_tstamp waittime = 0.; |
2251 | ev_tstamp waittime = 0.; |
1996 | ev_tstamp sleeptime = 0.; |
2252 | ev_tstamp sleeptime = 0.; |
1997 | |
2253 | |
1998 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2254 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
1999 | { |
2255 | { |
|
|
2256 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2257 | ev_tstamp prev_mn_now = mn_now; |
|
|
2258 | |
2000 | /* update time to cancel out callback processing overhead */ |
2259 | /* update time to cancel out callback processing overhead */ |
2001 | time_update (EV_A_ 1e100); |
2260 | time_update (EV_A_ 1e100); |
2002 | |
2261 | |
2003 | waittime = MAX_BLOCKTIME; |
2262 | waittime = MAX_BLOCKTIME; |
2004 | |
2263 | |
… | |
… | |
2014 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
2273 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
2015 | if (waittime > to) waittime = to; |
2274 | if (waittime > to) waittime = to; |
2016 | } |
2275 | } |
2017 | #endif |
2276 | #endif |
2018 | |
2277 | |
|
|
2278 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
2019 | if (expect_false (waittime < timeout_blocktime)) |
2279 | if (expect_false (waittime < timeout_blocktime)) |
2020 | waittime = timeout_blocktime; |
2280 | waittime = timeout_blocktime; |
2021 | |
2281 | |
2022 | sleeptime = waittime - backend_fudge; |
2282 | /* extra check because io_blocktime is commonly 0 */ |
2023 | |
|
|
2024 | if (expect_true (sleeptime > io_blocktime)) |
2283 | if (expect_false (io_blocktime)) |
2025 | sleeptime = io_blocktime; |
|
|
2026 | |
|
|
2027 | if (sleeptime) |
|
|
2028 | { |
2284 | { |
|
|
2285 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
|
|
2286 | |
|
|
2287 | if (sleeptime > waittime - backend_fudge) |
|
|
2288 | sleeptime = waittime - backend_fudge; |
|
|
2289 | |
|
|
2290 | if (expect_true (sleeptime > 0.)) |
|
|
2291 | { |
2029 | ev_sleep (sleeptime); |
2292 | ev_sleep (sleeptime); |
2030 | waittime -= sleeptime; |
2293 | waittime -= sleeptime; |
|
|
2294 | } |
2031 | } |
2295 | } |
2032 | } |
2296 | } |
2033 | |
2297 | |
|
|
2298 | #if EV_MINIMAL < 2 |
2034 | ++loop_count; |
2299 | ++loop_count; |
|
|
2300 | #endif |
|
|
2301 | assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ |
2035 | backend_poll (EV_A_ waittime); |
2302 | backend_poll (EV_A_ waittime); |
|
|
2303 | assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ |
2036 | |
2304 | |
2037 | /* update ev_rt_now, do magic */ |
2305 | /* update ev_rt_now, do magic */ |
2038 | time_update (EV_A_ waittime + sleeptime); |
2306 | time_update (EV_A_ waittime + sleeptime); |
2039 | } |
2307 | } |
2040 | |
2308 | |
… | |
… | |
2051 | |
2319 | |
2052 | /* queue check watchers, to be executed first */ |
2320 | /* queue check watchers, to be executed first */ |
2053 | if (expect_false (checkcnt)) |
2321 | if (expect_false (checkcnt)) |
2054 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2322 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2055 | |
2323 | |
2056 | call_pending (EV_A); |
2324 | EV_INVOKE_PENDING; |
2057 | } |
2325 | } |
2058 | while (expect_true ( |
2326 | while (expect_true ( |
2059 | activecnt |
2327 | activecnt |
2060 | && !loop_done |
2328 | && !loop_done |
2061 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2329 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2062 | )); |
2330 | )); |
2063 | |
2331 | |
2064 | if (loop_done == EVUNLOOP_ONE) |
2332 | if (loop_done == EVUNLOOP_ONE) |
2065 | loop_done = EVUNLOOP_CANCEL; |
2333 | loop_done = EVUNLOOP_CANCEL; |
|
|
2334 | |
|
|
2335 | #if EV_MINIMAL < 2 |
|
|
2336 | --loop_depth; |
|
|
2337 | #endif |
2066 | } |
2338 | } |
2067 | |
2339 | |
2068 | void |
2340 | void |
2069 | ev_unloop (EV_P_ int how) |
2341 | ev_unloop (EV_P_ int how) |
2070 | { |
2342 | { |
2071 | loop_done = how; |
2343 | loop_done = how; |
2072 | } |
2344 | } |
2073 | |
2345 | |
|
|
2346 | void |
|
|
2347 | ev_ref (EV_P) |
|
|
2348 | { |
|
|
2349 | ++activecnt; |
|
|
2350 | } |
|
|
2351 | |
|
|
2352 | void |
|
|
2353 | ev_unref (EV_P) |
|
|
2354 | { |
|
|
2355 | --activecnt; |
|
|
2356 | } |
|
|
2357 | |
|
|
2358 | void |
|
|
2359 | ev_now_update (EV_P) |
|
|
2360 | { |
|
|
2361 | time_update (EV_A_ 1e100); |
|
|
2362 | } |
|
|
2363 | |
|
|
2364 | void |
|
|
2365 | ev_suspend (EV_P) |
|
|
2366 | { |
|
|
2367 | ev_now_update (EV_A); |
|
|
2368 | } |
|
|
2369 | |
|
|
2370 | void |
|
|
2371 | ev_resume (EV_P) |
|
|
2372 | { |
|
|
2373 | ev_tstamp mn_prev = mn_now; |
|
|
2374 | |
|
|
2375 | ev_now_update (EV_A); |
|
|
2376 | timers_reschedule (EV_A_ mn_now - mn_prev); |
|
|
2377 | #if EV_PERIODIC_ENABLE |
|
|
2378 | /* TODO: really do this? */ |
|
|
2379 | periodics_reschedule (EV_A); |
|
|
2380 | #endif |
|
|
2381 | } |
|
|
2382 | |
2074 | /*****************************************************************************/ |
2383 | /*****************************************************************************/ |
|
|
2384 | /* singly-linked list management, used when the expected list length is short */ |
2075 | |
2385 | |
2076 | void inline_size |
2386 | inline_size void |
2077 | wlist_add (WL *head, WL elem) |
2387 | wlist_add (WL *head, WL elem) |
2078 | { |
2388 | { |
2079 | elem->next = *head; |
2389 | elem->next = *head; |
2080 | *head = elem; |
2390 | *head = elem; |
2081 | } |
2391 | } |
2082 | |
2392 | |
2083 | void inline_size |
2393 | inline_size void |
2084 | wlist_del (WL *head, WL elem) |
2394 | wlist_del (WL *head, WL elem) |
2085 | { |
2395 | { |
2086 | while (*head) |
2396 | while (*head) |
2087 | { |
2397 | { |
2088 | if (*head == elem) |
2398 | if (*head == elem) |
… | |
… | |
2093 | |
2403 | |
2094 | head = &(*head)->next; |
2404 | head = &(*head)->next; |
2095 | } |
2405 | } |
2096 | } |
2406 | } |
2097 | |
2407 | |
2098 | void inline_speed |
2408 | /* internal, faster, version of ev_clear_pending */ |
|
|
2409 | inline_speed void |
2099 | clear_pending (EV_P_ W w) |
2410 | clear_pending (EV_P_ W w) |
2100 | { |
2411 | { |
2101 | if (w->pending) |
2412 | if (w->pending) |
2102 | { |
2413 | { |
2103 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
2414 | pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w; |
2104 | w->pending = 0; |
2415 | w->pending = 0; |
2105 | } |
2416 | } |
2106 | } |
2417 | } |
2107 | |
2418 | |
2108 | int |
2419 | int |
… | |
… | |
2112 | int pending = w_->pending; |
2423 | int pending = w_->pending; |
2113 | |
2424 | |
2114 | if (expect_true (pending)) |
2425 | if (expect_true (pending)) |
2115 | { |
2426 | { |
2116 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
2427 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
2428 | p->w = (W)&pending_w; |
2117 | w_->pending = 0; |
2429 | w_->pending = 0; |
2118 | p->w = 0; |
|
|
2119 | return p->events; |
2430 | return p->events; |
2120 | } |
2431 | } |
2121 | else |
2432 | else |
2122 | return 0; |
2433 | return 0; |
2123 | } |
2434 | } |
2124 | |
2435 | |
2125 | void inline_size |
2436 | inline_size void |
2126 | pri_adjust (EV_P_ W w) |
2437 | pri_adjust (EV_P_ W w) |
2127 | { |
2438 | { |
2128 | int pri = w->priority; |
2439 | int pri = ev_priority (w); |
2129 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2440 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2130 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2441 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2131 | w->priority = pri; |
2442 | ev_set_priority (w, pri); |
2132 | } |
2443 | } |
2133 | |
2444 | |
2134 | void inline_speed |
2445 | inline_speed void |
2135 | ev_start (EV_P_ W w, int active) |
2446 | ev_start (EV_P_ W w, int active) |
2136 | { |
2447 | { |
2137 | pri_adjust (EV_A_ w); |
2448 | pri_adjust (EV_A_ w); |
2138 | w->active = active; |
2449 | w->active = active; |
2139 | ev_ref (EV_A); |
2450 | ev_ref (EV_A); |
2140 | } |
2451 | } |
2141 | |
2452 | |
2142 | void inline_size |
2453 | inline_size void |
2143 | ev_stop (EV_P_ W w) |
2454 | ev_stop (EV_P_ W w) |
2144 | { |
2455 | { |
2145 | ev_unref (EV_A); |
2456 | ev_unref (EV_A); |
2146 | w->active = 0; |
2457 | w->active = 0; |
2147 | } |
2458 | } |
… | |
… | |
2155 | |
2466 | |
2156 | if (expect_false (ev_is_active (w))) |
2467 | if (expect_false (ev_is_active (w))) |
2157 | return; |
2468 | return; |
2158 | |
2469 | |
2159 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
2470 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
2160 | assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV_IOFDSET | EV_READ | EV_WRITE)))); |
2471 | assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2161 | |
2472 | |
2162 | EV_FREQUENT_CHECK; |
2473 | EV_FREQUENT_CHECK; |
2163 | |
2474 | |
2164 | ev_start (EV_A_ (W)w, 1); |
2475 | ev_start (EV_A_ (W)w, 1); |
2165 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2476 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2166 | wlist_add (&anfds[fd].head, (WL)w); |
2477 | wlist_add (&anfds[fd].head, (WL)w); |
2167 | |
2478 | |
2168 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
2479 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
2169 | w->events &= ~EV_IOFDSET; |
2480 | w->events &= ~EV__IOFDSET; |
2170 | |
2481 | |
2171 | EV_FREQUENT_CHECK; |
2482 | EV_FREQUENT_CHECK; |
2172 | } |
2483 | } |
2173 | |
2484 | |
2174 | void noinline |
2485 | void noinline |
… | |
… | |
2267 | } |
2578 | } |
2268 | |
2579 | |
2269 | EV_FREQUENT_CHECK; |
2580 | EV_FREQUENT_CHECK; |
2270 | } |
2581 | } |
2271 | |
2582 | |
|
|
2583 | ev_tstamp |
|
|
2584 | ev_timer_remaining (EV_P_ ev_timer *w) |
|
|
2585 | { |
|
|
2586 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
|
|
2587 | } |
|
|
2588 | |
2272 | #if EV_PERIODIC_ENABLE |
2589 | #if EV_PERIODIC_ENABLE |
2273 | void noinline |
2590 | void noinline |
2274 | ev_periodic_start (EV_P_ ev_periodic *w) |
2591 | ev_periodic_start (EV_P_ ev_periodic *w) |
2275 | { |
2592 | { |
2276 | if (expect_false (ev_is_active (w))) |
2593 | if (expect_false (ev_is_active (w))) |
… | |
… | |
2343 | #endif |
2660 | #endif |
2344 | |
2661 | |
2345 | void noinline |
2662 | void noinline |
2346 | ev_signal_start (EV_P_ ev_signal *w) |
2663 | ev_signal_start (EV_P_ ev_signal *w) |
2347 | { |
2664 | { |
2348 | #if EV_MULTIPLICITY |
|
|
2349 | assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
2350 | #endif |
|
|
2351 | if (expect_false (ev_is_active (w))) |
2665 | if (expect_false (ev_is_active (w))) |
2352 | return; |
2666 | return; |
2353 | |
2667 | |
2354 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); |
2668 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
2355 | |
2669 | |
2356 | evpipe_init (EV_A); |
2670 | #if EV_MULTIPLICITY |
|
|
2671 | assert (("libev: tried to attach to a signal from two different loops", |
|
|
2672 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
2357 | |
2673 | |
2358 | EV_FREQUENT_CHECK; |
2674 | signals [w->signum - 1].loop = EV_A; |
|
|
2675 | #endif |
2359 | |
2676 | |
|
|
2677 | EV_FREQUENT_CHECK; |
|
|
2678 | |
|
|
2679 | #if EV_USE_SIGNALFD |
|
|
2680 | if (sigfd == -2) |
2360 | { |
2681 | { |
2361 | #ifndef _WIN32 |
2682 | sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC); |
2362 | sigset_t full, prev; |
2683 | if (sigfd < 0 && errno == EINVAL) |
2363 | sigfillset (&full); |
2684 | sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */ |
2364 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2365 | #endif |
|
|
2366 | |
2685 | |
2367 | array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); |
2686 | if (sigfd >= 0) |
|
|
2687 | { |
|
|
2688 | fd_intern (sigfd); /* doing it twice will not hurt */ |
2368 | |
2689 | |
2369 | #ifndef _WIN32 |
2690 | sigemptyset (&sigfd_set); |
2370 | sigprocmask (SIG_SETMASK, &prev, 0); |
2691 | |
2371 | #endif |
2692 | ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ); |
|
|
2693 | ev_set_priority (&sigfd_w, EV_MAXPRI); |
|
|
2694 | ev_io_start (EV_A_ &sigfd_w); |
|
|
2695 | ev_unref (EV_A); /* signalfd watcher should not keep loop alive */ |
|
|
2696 | } |
2372 | } |
2697 | } |
|
|
2698 | |
|
|
2699 | if (sigfd >= 0) |
|
|
2700 | { |
|
|
2701 | /* TODO: check .head */ |
|
|
2702 | sigaddset (&sigfd_set, w->signum); |
|
|
2703 | sigprocmask (SIG_BLOCK, &sigfd_set, 0); |
|
|
2704 | |
|
|
2705 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2706 | } |
|
|
2707 | #endif |
2373 | |
2708 | |
2374 | ev_start (EV_A_ (W)w, 1); |
2709 | ev_start (EV_A_ (W)w, 1); |
2375 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2710 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2376 | |
2711 | |
2377 | if (!((WL)w)->next) |
2712 | if (!((WL)w)->next) |
|
|
2713 | # if EV_USE_SIGNALFD |
|
|
2714 | if (sigfd < 0) /*TODO*/ |
|
|
2715 | # endif |
2378 | { |
2716 | { |
2379 | #if _WIN32 |
2717 | # if _WIN32 |
2380 | signal (w->signum, ev_sighandler); |
2718 | signal (w->signum, ev_sighandler); |
2381 | #else |
2719 | # else |
2382 | struct sigaction sa; |
2720 | struct sigaction sa; |
|
|
2721 | |
|
|
2722 | evpipe_init (EV_A); |
|
|
2723 | |
2383 | sa.sa_handler = ev_sighandler; |
2724 | sa.sa_handler = ev_sighandler; |
2384 | sigfillset (&sa.sa_mask); |
2725 | sigfillset (&sa.sa_mask); |
2385 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2726 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2386 | sigaction (w->signum, &sa, 0); |
2727 | sigaction (w->signum, &sa, 0); |
|
|
2728 | |
|
|
2729 | sigemptyset (&sa.sa_mask); |
|
|
2730 | sigaddset (&sa.sa_mask, w->signum); |
|
|
2731 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
2387 | #endif |
2732 | #endif |
2388 | } |
2733 | } |
2389 | |
2734 | |
2390 | EV_FREQUENT_CHECK; |
2735 | EV_FREQUENT_CHECK; |
2391 | } |
2736 | } |
2392 | |
2737 | |
2393 | void noinline |
2738 | void noinline |
… | |
… | |
2401 | |
2746 | |
2402 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2747 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2403 | ev_stop (EV_A_ (W)w); |
2748 | ev_stop (EV_A_ (W)w); |
2404 | |
2749 | |
2405 | if (!signals [w->signum - 1].head) |
2750 | if (!signals [w->signum - 1].head) |
|
|
2751 | { |
|
|
2752 | #if EV_MULTIPLICITY |
|
|
2753 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
|
|
2754 | #endif |
|
|
2755 | #if EV_USE_SIGNALFD |
|
|
2756 | if (sigfd >= 0) |
|
|
2757 | { |
|
|
2758 | sigprocmask (SIG_UNBLOCK, &sigfd_set, 0);//D |
|
|
2759 | sigdelset (&sigfd_set, w->signum); |
|
|
2760 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2761 | sigprocmask (SIG_BLOCK, &sigfd_set, 0);//D |
|
|
2762 | /*TODO: maybe unblock signal? */ |
|
|
2763 | } |
|
|
2764 | else |
|
|
2765 | #endif |
2406 | signal (w->signum, SIG_DFL); |
2766 | signal (w->signum, SIG_DFL); |
|
|
2767 | } |
2407 | |
2768 | |
2408 | EV_FREQUENT_CHECK; |
2769 | EV_FREQUENT_CHECK; |
2409 | } |
2770 | } |
2410 | |
2771 | |
2411 | void |
2772 | void |
… | |
… | |
2572 | |
2933 | |
2573 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
2934 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
2574 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
2935 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
2575 | } |
2936 | } |
2576 | |
2937 | |
2577 | void inline_size |
2938 | inline_size void |
2578 | check_2625 (EV_P) |
2939 | check_2625 (EV_P) |
2579 | { |
2940 | { |
2580 | /* kernels < 2.6.25 are borked |
2941 | /* kernels < 2.6.25 are borked |
2581 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
2942 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
2582 | */ |
2943 | */ |
… | |
… | |
2595 | return; |
2956 | return; |
2596 | |
2957 | |
2597 | fs_2625 = 1; |
2958 | fs_2625 = 1; |
2598 | } |
2959 | } |
2599 | |
2960 | |
2600 | void inline_size |
2961 | inline_size void |
2601 | infy_init (EV_P) |
2962 | infy_init (EV_P) |
2602 | { |
2963 | { |
2603 | if (fs_fd != -2) |
2964 | if (fs_fd != -2) |
2604 | return; |
2965 | return; |
2605 | |
2966 | |
… | |
… | |
2615 | ev_set_priority (&fs_w, EV_MAXPRI); |
2976 | ev_set_priority (&fs_w, EV_MAXPRI); |
2616 | ev_io_start (EV_A_ &fs_w); |
2977 | ev_io_start (EV_A_ &fs_w); |
2617 | } |
2978 | } |
2618 | } |
2979 | } |
2619 | |
2980 | |
2620 | void inline_size |
2981 | inline_size void |
2621 | infy_fork (EV_P) |
2982 | infy_fork (EV_P) |
2622 | { |
2983 | { |
2623 | int slot; |
2984 | int slot; |
2624 | |
2985 | |
2625 | if (fs_fd < 0) |
2986 | if (fs_fd < 0) |
… | |
… | |
2891 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3252 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
2892 | { |
3253 | { |
2893 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
3254 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
2894 | |
3255 | |
2895 | { |
3256 | { |
2896 | struct ev_loop *loop = w->other; |
3257 | EV_P = w->other; |
2897 | |
3258 | |
2898 | while (fdchangecnt) |
3259 | while (fdchangecnt) |
2899 | { |
3260 | { |
2900 | fd_reify (EV_A); |
3261 | fd_reify (EV_A); |
2901 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3262 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
… | |
… | |
2909 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
3270 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
2910 | |
3271 | |
2911 | ev_embed_stop (EV_A_ w); |
3272 | ev_embed_stop (EV_A_ w); |
2912 | |
3273 | |
2913 | { |
3274 | { |
2914 | struct ev_loop *loop = w->other; |
3275 | EV_P = w->other; |
2915 | |
3276 | |
2916 | ev_loop_fork (EV_A); |
3277 | ev_loop_fork (EV_A); |
2917 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3278 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
2918 | } |
3279 | } |
2919 | |
3280 | |
… | |
… | |
2933 | { |
3294 | { |
2934 | if (expect_false (ev_is_active (w))) |
3295 | if (expect_false (ev_is_active (w))) |
2935 | return; |
3296 | return; |
2936 | |
3297 | |
2937 | { |
3298 | { |
2938 | struct ev_loop *loop = w->other; |
3299 | EV_P = w->other; |
2939 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3300 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2940 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3301 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2941 | } |
3302 | } |
2942 | |
3303 | |
2943 | EV_FREQUENT_CHECK; |
3304 | EV_FREQUENT_CHECK; |
… | |
… | |
3127 | ev_timer_set (&once->to, timeout, 0.); |
3488 | ev_timer_set (&once->to, timeout, 0.); |
3128 | ev_timer_start (EV_A_ &once->to); |
3489 | ev_timer_start (EV_A_ &once->to); |
3129 | } |
3490 | } |
3130 | } |
3491 | } |
3131 | |
3492 | |
|
|
3493 | /*****************************************************************************/ |
|
|
3494 | |
|
|
3495 | #if EV_WALK_ENABLE |
|
|
3496 | void |
|
|
3497 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
|
|
3498 | { |
|
|
3499 | int i, j; |
|
|
3500 | ev_watcher_list *wl, *wn; |
|
|
3501 | |
|
|
3502 | if (types & (EV_IO | EV_EMBED)) |
|
|
3503 | for (i = 0; i < anfdmax; ++i) |
|
|
3504 | for (wl = anfds [i].head; wl; ) |
|
|
3505 | { |
|
|
3506 | wn = wl->next; |
|
|
3507 | |
|
|
3508 | #if EV_EMBED_ENABLE |
|
|
3509 | if (ev_cb ((ev_io *)wl) == embed_io_cb) |
|
|
3510 | { |
|
|
3511 | if (types & EV_EMBED) |
|
|
3512 | cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io)); |
|
|
3513 | } |
|
|
3514 | else |
|
|
3515 | #endif |
|
|
3516 | #if EV_USE_INOTIFY |
|
|
3517 | if (ev_cb ((ev_io *)wl) == infy_cb) |
|
|
3518 | ; |
|
|
3519 | else |
|
|
3520 | #endif |
|
|
3521 | if ((ev_io *)wl != &pipe_w) |
|
|
3522 | if (types & EV_IO) |
|
|
3523 | cb (EV_A_ EV_IO, wl); |
|
|
3524 | |
|
|
3525 | wl = wn; |
|
|
3526 | } |
|
|
3527 | |
|
|
3528 | if (types & (EV_TIMER | EV_STAT)) |
|
|
3529 | for (i = timercnt + HEAP0; i-- > HEAP0; ) |
|
|
3530 | #if EV_STAT_ENABLE |
|
|
3531 | /*TODO: timer is not always active*/ |
|
|
3532 | if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb) |
|
|
3533 | { |
|
|
3534 | if (types & EV_STAT) |
|
|
3535 | cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer)); |
|
|
3536 | } |
|
|
3537 | else |
|
|
3538 | #endif |
|
|
3539 | if (types & EV_TIMER) |
|
|
3540 | cb (EV_A_ EV_TIMER, ANHE_w (timers [i])); |
|
|
3541 | |
|
|
3542 | #if EV_PERIODIC_ENABLE |
|
|
3543 | if (types & EV_PERIODIC) |
|
|
3544 | for (i = periodiccnt + HEAP0; i-- > HEAP0; ) |
|
|
3545 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
|
|
3546 | #endif |
|
|
3547 | |
|
|
3548 | #if EV_IDLE_ENABLE |
|
|
3549 | if (types & EV_IDLE) |
|
|
3550 | for (j = NUMPRI; i--; ) |
|
|
3551 | for (i = idlecnt [j]; i--; ) |
|
|
3552 | cb (EV_A_ EV_IDLE, idles [j][i]); |
|
|
3553 | #endif |
|
|
3554 | |
|
|
3555 | #if EV_FORK_ENABLE |
|
|
3556 | if (types & EV_FORK) |
|
|
3557 | for (i = forkcnt; i--; ) |
|
|
3558 | if (ev_cb (forks [i]) != embed_fork_cb) |
|
|
3559 | cb (EV_A_ EV_FORK, forks [i]); |
|
|
3560 | #endif |
|
|
3561 | |
|
|
3562 | #if EV_ASYNC_ENABLE |
|
|
3563 | if (types & EV_ASYNC) |
|
|
3564 | for (i = asynccnt; i--; ) |
|
|
3565 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
|
|
3566 | #endif |
|
|
3567 | |
|
|
3568 | if (types & EV_PREPARE) |
|
|
3569 | for (i = preparecnt; i--; ) |
|
|
3570 | #if EV_EMBED_ENABLE |
|
|
3571 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
|
|
3572 | #endif |
|
|
3573 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
3574 | |
|
|
3575 | if (types & EV_CHECK) |
|
|
3576 | for (i = checkcnt; i--; ) |
|
|
3577 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
3578 | |
|
|
3579 | if (types & EV_SIGNAL) |
|
|
3580 | for (i = 0; i < EV_NSIG - 1; ++i) |
|
|
3581 | for (wl = signals [i].head; wl; ) |
|
|
3582 | { |
|
|
3583 | wn = wl->next; |
|
|
3584 | cb (EV_A_ EV_SIGNAL, wl); |
|
|
3585 | wl = wn; |
|
|
3586 | } |
|
|
3587 | |
|
|
3588 | if (types & EV_CHILD) |
|
|
3589 | for (i = EV_PID_HASHSIZE; i--; ) |
|
|
3590 | for (wl = childs [i]; wl; ) |
|
|
3591 | { |
|
|
3592 | wn = wl->next; |
|
|
3593 | cb (EV_A_ EV_CHILD, wl); |
|
|
3594 | wl = wn; |
|
|
3595 | } |
|
|
3596 | /* EV_STAT 0x00001000 /* stat data changed */ |
|
|
3597 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
|
|
3598 | } |
|
|
3599 | #endif |
|
|
3600 | |
3132 | #if EV_MULTIPLICITY |
3601 | #if EV_MULTIPLICITY |
3133 | #include "ev_wrap.h" |
3602 | #include "ev_wrap.h" |
3134 | #endif |
3603 | #endif |
3135 | |
3604 | |
3136 | #ifdef __cplusplus |
3605 | #ifdef __cplusplus |