… | |
… | |
133 | # else |
133 | # else |
134 | # define EV_USE_INOTIFY 0 |
134 | # define EV_USE_INOTIFY 0 |
135 | # endif |
135 | # endif |
136 | # endif |
136 | # endif |
137 | |
137 | |
|
|
138 | # ifndef EV_USE_SIGNALFD |
|
|
139 | # if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H |
|
|
140 | # define EV_USE_SIGNALFD 1 |
|
|
141 | # else |
|
|
142 | # define EV_USE_SIGNALFD 0 |
|
|
143 | # endif |
|
|
144 | # endif |
|
|
145 | |
138 | # ifndef EV_USE_EVENTFD |
146 | # ifndef EV_USE_EVENTFD |
139 | # if HAVE_EVENTFD |
147 | # if HAVE_EVENTFD |
140 | # define EV_USE_EVENTFD 1 |
148 | # define EV_USE_EVENTFD 1 |
141 | # else |
149 | # else |
142 | # define EV_USE_EVENTFD 0 |
150 | # define EV_USE_EVENTFD 0 |
… | |
… | |
145 | |
153 | |
146 | #endif |
154 | #endif |
147 | |
155 | |
148 | #include <math.h> |
156 | #include <math.h> |
149 | #include <stdlib.h> |
157 | #include <stdlib.h> |
|
|
158 | #include <string.h> |
150 | #include <fcntl.h> |
159 | #include <fcntl.h> |
151 | #include <stddef.h> |
160 | #include <stddef.h> |
152 | |
161 | |
153 | #include <stdio.h> |
162 | #include <stdio.h> |
154 | |
163 | |
… | |
… | |
178 | # endif |
187 | # endif |
179 | #endif |
188 | #endif |
180 | |
189 | |
181 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
190 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
182 | |
191 | |
|
|
192 | /* try to deduce the maximum number of signals on this platform */ |
|
|
193 | #if defined (EV_NSIG) |
|
|
194 | /* use what's provided */ |
|
|
195 | #elif defined (NSIG) |
|
|
196 | # define EV_NSIG (NSIG) |
|
|
197 | #elif defined(_NSIG) |
|
|
198 | # define EV_NSIG (_NSIG) |
|
|
199 | #elif defined (SIGMAX) |
|
|
200 | # define EV_NSIG (SIGMAX+1) |
|
|
201 | #elif defined (SIG_MAX) |
|
|
202 | # define EV_NSIG (SIG_MAX+1) |
|
|
203 | #elif defined (_SIG_MAX) |
|
|
204 | # define EV_NSIG (_SIG_MAX+1) |
|
|
205 | #elif defined (MAXSIG) |
|
|
206 | # define EV_NSIG (MAXSIG+1) |
|
|
207 | #elif defined (MAX_SIG) |
|
|
208 | # define EV_NSIG (MAX_SIG+1) |
|
|
209 | #elif defined (SIGARRAYSIZE) |
|
|
210 | # define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */ |
|
|
211 | #elif defined (_sys_nsig) |
|
|
212 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
|
|
213 | #else |
|
|
214 | # error "unable to find value for NSIG, please report" |
|
|
215 | /* to make it compile regardless, just remove the above line */ |
|
|
216 | # define EV_NSIG 65 |
|
|
217 | #endif |
|
|
218 | |
183 | #ifndef EV_USE_CLOCK_SYSCALL |
219 | #ifndef EV_USE_CLOCK_SYSCALL |
184 | # if __linux && __GLIBC__ >= 2 |
220 | # if __linux && __GLIBC__ >= 2 |
185 | # define EV_USE_CLOCK_SYSCALL 1 |
221 | # define EV_USE_CLOCK_SYSCALL 1 |
186 | # else |
222 | # else |
187 | # define EV_USE_CLOCK_SYSCALL 0 |
223 | # define EV_USE_CLOCK_SYSCALL 0 |
… | |
… | |
266 | # else |
302 | # else |
267 | # define EV_USE_EVENTFD 0 |
303 | # define EV_USE_EVENTFD 0 |
268 | # endif |
304 | # endif |
269 | #endif |
305 | #endif |
270 | |
306 | |
|
|
307 | #ifndef EV_USE_SIGNALFD |
|
|
308 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
|
|
309 | # define EV_USE_SIGNALFD 1 |
|
|
310 | # else |
|
|
311 | # define EV_USE_SIGNALFD 0 |
|
|
312 | # endif |
|
|
313 | #endif |
|
|
314 | |
271 | #if 0 /* debugging */ |
315 | #if 0 /* debugging */ |
272 | # define EV_VERIFY 3 |
316 | # define EV_VERIFY 3 |
273 | # define EV_USE_4HEAP 1 |
317 | # define EV_USE_4HEAP 1 |
274 | # define EV_HEAP_CACHE_AT 1 |
318 | # define EV_HEAP_CACHE_AT 1 |
275 | #endif |
319 | #endif |
… | |
… | |
282 | # define EV_USE_4HEAP !EV_MINIMAL |
326 | # define EV_USE_4HEAP !EV_MINIMAL |
283 | #endif |
327 | #endif |
284 | |
328 | |
285 | #ifndef EV_HEAP_CACHE_AT |
329 | #ifndef EV_HEAP_CACHE_AT |
286 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
330 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
287 | #endif |
|
|
288 | |
|
|
289 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
|
|
290 | |
|
|
291 | #ifndef CLOCK_MONOTONIC |
|
|
292 | # undef EV_USE_MONOTONIC |
|
|
293 | # define EV_USE_MONOTONIC 0 |
|
|
294 | #endif |
|
|
295 | |
|
|
296 | #ifndef CLOCK_REALTIME |
|
|
297 | # undef EV_USE_REALTIME |
|
|
298 | # define EV_USE_REALTIME 0 |
|
|
299 | #endif |
|
|
300 | |
|
|
301 | #if !EV_STAT_ENABLE |
|
|
302 | # undef EV_USE_INOTIFY |
|
|
303 | # define EV_USE_INOTIFY 0 |
|
|
304 | #endif |
|
|
305 | |
|
|
306 | #if !EV_USE_NANOSLEEP |
|
|
307 | # ifndef _WIN32 |
|
|
308 | # include <sys/select.h> |
|
|
309 | # endif |
|
|
310 | #endif |
|
|
311 | |
|
|
312 | #if EV_USE_INOTIFY |
|
|
313 | # include <sys/utsname.h> |
|
|
314 | # include <sys/statfs.h> |
|
|
315 | # include <sys/inotify.h> |
|
|
316 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
|
|
317 | # ifndef IN_DONT_FOLLOW |
|
|
318 | # undef EV_USE_INOTIFY |
|
|
319 | # define EV_USE_INOTIFY 0 |
|
|
320 | # endif |
|
|
321 | #endif |
|
|
322 | |
|
|
323 | #if EV_SELECT_IS_WINSOCKET |
|
|
324 | # include <winsock.h> |
|
|
325 | #endif |
331 | #endif |
326 | |
332 | |
327 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
333 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
328 | /* which makes programs even slower. might work on other unices, too. */ |
334 | /* which makes programs even slower. might work on other unices, too. */ |
329 | #if EV_USE_CLOCK_SYSCALL |
335 | #if EV_USE_CLOCK_SYSCALL |
… | |
… | |
336 | # undef EV_USE_CLOCK_SYSCALL |
342 | # undef EV_USE_CLOCK_SYSCALL |
337 | # define EV_USE_CLOCK_SYSCALL 0 |
343 | # define EV_USE_CLOCK_SYSCALL 0 |
338 | # endif |
344 | # endif |
339 | #endif |
345 | #endif |
340 | |
346 | |
|
|
347 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
|
|
348 | |
|
|
349 | #ifndef CLOCK_MONOTONIC |
|
|
350 | # undef EV_USE_MONOTONIC |
|
|
351 | # define EV_USE_MONOTONIC 0 |
|
|
352 | #endif |
|
|
353 | |
|
|
354 | #ifndef CLOCK_REALTIME |
|
|
355 | # undef EV_USE_REALTIME |
|
|
356 | # define EV_USE_REALTIME 0 |
|
|
357 | #endif |
|
|
358 | |
|
|
359 | #if !EV_STAT_ENABLE |
|
|
360 | # undef EV_USE_INOTIFY |
|
|
361 | # define EV_USE_INOTIFY 0 |
|
|
362 | #endif |
|
|
363 | |
|
|
364 | #if !EV_USE_NANOSLEEP |
|
|
365 | # ifndef _WIN32 |
|
|
366 | # include <sys/select.h> |
|
|
367 | # endif |
|
|
368 | #endif |
|
|
369 | |
|
|
370 | #if EV_USE_INOTIFY |
|
|
371 | # include <sys/utsname.h> |
|
|
372 | # include <sys/statfs.h> |
|
|
373 | # include <sys/inotify.h> |
|
|
374 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
|
|
375 | # ifndef IN_DONT_FOLLOW |
|
|
376 | # undef EV_USE_INOTIFY |
|
|
377 | # define EV_USE_INOTIFY 0 |
|
|
378 | # endif |
|
|
379 | #endif |
|
|
380 | |
|
|
381 | #if EV_SELECT_IS_WINSOCKET |
|
|
382 | # include <winsock.h> |
|
|
383 | #endif |
|
|
384 | |
341 | #if EV_USE_EVENTFD |
385 | #if EV_USE_EVENTFD |
342 | /* 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 */ |
343 | # include <stdint.h> |
387 | # include <stdint.h> |
|
|
388 | # ifndef EFD_NONBLOCK |
|
|
389 | # define EFD_NONBLOCK O_NONBLOCK |
|
|
390 | # endif |
|
|
391 | # ifndef EFD_CLOEXEC |
|
|
392 | # ifdef O_CLOEXEC |
|
|
393 | # define EFD_CLOEXEC O_CLOEXEC |
|
|
394 | # else |
|
|
395 | # define EFD_CLOEXEC 02000000 |
|
|
396 | # endif |
|
|
397 | # endif |
344 | # ifdef __cplusplus |
398 | # ifdef __cplusplus |
345 | extern "C" { |
399 | extern "C" { |
346 | # endif |
400 | # endif |
347 | int eventfd (unsigned int initval, int flags); |
401 | int eventfd (unsigned int initval, int flags); |
348 | # ifdef __cplusplus |
402 | # ifdef __cplusplus |
349 | } |
403 | } |
350 | # endif |
404 | # endif |
351 | #endif |
405 | #endif |
|
|
406 | |
|
|
407 | #if EV_USE_SIGNALFD |
|
|
408 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
|
|
409 | # include <stdint.h> |
|
|
410 | # ifndef SFD_NONBLOCK |
|
|
411 | # define SFD_NONBLOCK O_NONBLOCK |
|
|
412 | # endif |
|
|
413 | # ifndef SFD_CLOEXEC |
|
|
414 | # ifdef O_CLOEXEC |
|
|
415 | # define SFD_CLOEXEC O_CLOEXEC |
|
|
416 | # else |
|
|
417 | # define SFD_CLOEXEC 02000000 |
|
|
418 | # endif |
|
|
419 | # endif |
|
|
420 | # ifdef __cplusplus |
|
|
421 | extern "C" { |
|
|
422 | # endif |
|
|
423 | int signalfd (int fd, const sigset_t *mask, int flags); |
|
|
424 | |
|
|
425 | struct signalfd_siginfo |
|
|
426 | { |
|
|
427 | uint32_t ssi_signo; |
|
|
428 | char pad[128 - sizeof (uint32_t)]; |
|
|
429 | }; |
|
|
430 | # ifdef __cplusplus |
|
|
431 | } |
|
|
432 | # endif |
|
|
433 | #endif |
|
|
434 | |
352 | |
435 | |
353 | /**/ |
436 | /**/ |
354 | |
437 | |
355 | #if EV_VERIFY >= 3 |
438 | #if EV_VERIFY >= 3 |
356 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
439 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
… | |
… | |
368 | */ |
451 | */ |
369 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
452 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
370 | |
453 | |
371 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
454 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
372 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
455 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
373 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
|
|
374 | |
456 | |
375 | #if __GNUC__ >= 4 |
457 | #if __GNUC__ >= 4 |
376 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
458 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
377 | # define noinline __attribute__ ((noinline)) |
459 | # define noinline __attribute__ ((noinline)) |
378 | #else |
460 | #else |
… | |
… | |
391 | # define inline_speed static noinline |
473 | # define inline_speed static noinline |
392 | #else |
474 | #else |
393 | # define inline_speed static inline |
475 | # define inline_speed static inline |
394 | #endif |
476 | #endif |
395 | |
477 | |
396 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
478 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
479 | |
|
|
480 | #if EV_MINPRI == EV_MAXPRI |
|
|
481 | # define ABSPRI(w) (((W)w), 0) |
|
|
482 | #else |
397 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
483 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
|
|
484 | #endif |
398 | |
485 | |
399 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
486 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
400 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
487 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
401 | |
488 | |
402 | typedef ev_watcher *W; |
489 | typedef ev_watcher *W; |
… | |
… | |
414 | |
501 | |
415 | #if EV_USE_MONOTONIC |
502 | #if EV_USE_MONOTONIC |
416 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
503 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
417 | #endif |
504 | #endif |
418 | |
505 | |
|
|
506 | #ifndef EV_FD_TO_WIN32_HANDLE |
|
|
507 | # define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
|
|
508 | #endif |
|
|
509 | #ifndef EV_WIN32_HANDLE_TO_FD |
|
|
510 | # define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (fd, 0) |
|
|
511 | #endif |
|
|
512 | #ifndef EV_WIN32_CLOSE_FD |
|
|
513 | # define EV_WIN32_CLOSE_FD(fd) close (fd) |
|
|
514 | #endif |
|
|
515 | |
419 | #ifdef _WIN32 |
516 | #ifdef _WIN32 |
420 | # include "ev_win32.c" |
517 | # include "ev_win32.c" |
421 | #endif |
518 | #endif |
422 | |
519 | |
423 | /*****************************************************************************/ |
520 | /*****************************************************************************/ |
… | |
… | |
485 | #define ev_malloc(size) ev_realloc (0, (size)) |
582 | #define ev_malloc(size) ev_realloc (0, (size)) |
486 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
583 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
487 | |
584 | |
488 | /*****************************************************************************/ |
585 | /*****************************************************************************/ |
489 | |
586 | |
|
|
587 | /* set in reify when reification needed */ |
|
|
588 | #define EV_ANFD_REIFY 1 |
|
|
589 | |
490 | /* file descriptor info structure */ |
590 | /* file descriptor info structure */ |
491 | typedef struct |
591 | typedef struct |
492 | { |
592 | { |
493 | WL head; |
593 | WL head; |
494 | unsigned char events; /* the events watched for */ |
594 | unsigned char events; /* the events watched for */ |
495 | unsigned char reify; /* flag set when this ANFD needs reification */ |
595 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
496 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
596 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
497 | unsigned char unused; |
597 | unsigned char unused; |
498 | #if EV_USE_EPOLL |
598 | #if EV_USE_EPOLL |
499 | unsigned int egen; /* generation counter to counter epoll bugs */ |
599 | unsigned int egen; /* generation counter to counter epoll bugs */ |
500 | #endif |
600 | #endif |
… | |
… | |
562 | |
662 | |
563 | static int ev_default_loop_ptr; |
663 | static int ev_default_loop_ptr; |
564 | |
664 | |
565 | #endif |
665 | #endif |
566 | |
666 | |
|
|
667 | #if EV_MINIMAL < 2 |
|
|
668 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
|
|
669 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
|
|
670 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
|
|
671 | #else |
|
|
672 | # define EV_RELEASE_CB (void)0 |
|
|
673 | # define EV_ACQUIRE_CB (void)0 |
|
|
674 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
|
|
675 | #endif |
|
|
676 | |
|
|
677 | #define EVUNLOOP_RECURSE 0x80 |
|
|
678 | |
567 | /*****************************************************************************/ |
679 | /*****************************************************************************/ |
568 | |
680 | |
|
|
681 | #ifndef EV_HAVE_EV_TIME |
569 | ev_tstamp |
682 | ev_tstamp |
570 | ev_time (void) |
683 | ev_time (void) |
571 | { |
684 | { |
572 | #if EV_USE_REALTIME |
685 | #if EV_USE_REALTIME |
573 | if (expect_true (have_realtime)) |
686 | if (expect_true (have_realtime)) |
… | |
… | |
580 | |
693 | |
581 | struct timeval tv; |
694 | struct timeval tv; |
582 | gettimeofday (&tv, 0); |
695 | gettimeofday (&tv, 0); |
583 | return tv.tv_sec + tv.tv_usec * 1e-6; |
696 | return tv.tv_sec + tv.tv_usec * 1e-6; |
584 | } |
697 | } |
|
|
698 | #endif |
585 | |
699 | |
586 | inline_size ev_tstamp |
700 | inline_size ev_tstamp |
587 | get_clock (void) |
701 | get_clock (void) |
588 | { |
702 | { |
589 | #if EV_USE_MONOTONIC |
703 | #if EV_USE_MONOTONIC |
… | |
… | |
625 | |
739 | |
626 | tv.tv_sec = (time_t)delay; |
740 | tv.tv_sec = (time_t)delay; |
627 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
741 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
628 | |
742 | |
629 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
743 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
630 | /* somehting nto guaranteed by newer posix versions, but guaranteed */ |
744 | /* something not guaranteed by newer posix versions, but guaranteed */ |
631 | /* by older ones */ |
745 | /* by older ones */ |
632 | select (0, 0, 0, 0, &tv); |
746 | select (0, 0, 0, 0, &tv); |
633 | #endif |
747 | #endif |
634 | } |
748 | } |
635 | } |
749 | } |
… | |
… | |
743 | } |
857 | } |
744 | |
858 | |
745 | /*****************************************************************************/ |
859 | /*****************************************************************************/ |
746 | |
860 | |
747 | inline_speed void |
861 | inline_speed void |
748 | fd_event (EV_P_ int fd, int revents) |
862 | fd_event_nc (EV_P_ int fd, int revents) |
749 | { |
863 | { |
750 | ANFD *anfd = anfds + fd; |
864 | ANFD *anfd = anfds + fd; |
751 | ev_io *w; |
865 | ev_io *w; |
752 | |
866 | |
753 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
867 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
757 | if (ev) |
871 | if (ev) |
758 | ev_feed_event (EV_A_ (W)w, ev); |
872 | ev_feed_event (EV_A_ (W)w, ev); |
759 | } |
873 | } |
760 | } |
874 | } |
761 | |
875 | |
|
|
876 | /* do not submit kernel events for fds that have reify set */ |
|
|
877 | /* because that means they changed while we were polling for new events */ |
|
|
878 | inline_speed void |
|
|
879 | fd_event (EV_P_ int fd, int revents) |
|
|
880 | { |
|
|
881 | ANFD *anfd = anfds + fd; |
|
|
882 | |
|
|
883 | if (expect_true (!anfd->reify)) |
|
|
884 | fd_event_nc (EV_A_ fd, revents); |
|
|
885 | } |
|
|
886 | |
762 | void |
887 | void |
763 | ev_feed_fd_event (EV_P_ int fd, int revents) |
888 | ev_feed_fd_event (EV_P_ int fd, int revents) |
764 | { |
889 | { |
765 | if (fd >= 0 && fd < anfdmax) |
890 | if (fd >= 0 && fd < anfdmax) |
766 | fd_event (EV_A_ fd, revents); |
891 | fd_event_nc (EV_A_ fd, revents); |
767 | } |
892 | } |
768 | |
893 | |
769 | /* make sure the external fd watch events are in-sync */ |
894 | /* make sure the external fd watch events are in-sync */ |
770 | /* with the kernel/libev internal state */ |
895 | /* with the kernel/libev internal state */ |
771 | inline_size void |
896 | inline_size void |
… | |
… | |
786 | |
911 | |
787 | #if EV_SELECT_IS_WINSOCKET |
912 | #if EV_SELECT_IS_WINSOCKET |
788 | if (events) |
913 | if (events) |
789 | { |
914 | { |
790 | unsigned long arg; |
915 | unsigned long arg; |
791 | #ifdef EV_FD_TO_WIN32_HANDLE |
|
|
792 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
916 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
793 | #else |
|
|
794 | anfd->handle = _get_osfhandle (fd); |
|
|
795 | #endif |
|
|
796 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
917 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
797 | } |
918 | } |
798 | #endif |
919 | #endif |
799 | |
920 | |
800 | { |
921 | { |
… | |
… | |
871 | |
992 | |
872 | for (fd = anfdmax; fd--; ) |
993 | for (fd = anfdmax; fd--; ) |
873 | if (anfds [fd].events) |
994 | if (anfds [fd].events) |
874 | { |
995 | { |
875 | fd_kill (EV_A_ fd); |
996 | fd_kill (EV_A_ fd); |
876 | return; |
997 | break; |
877 | } |
998 | } |
878 | } |
999 | } |
879 | |
1000 | |
880 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1001 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
881 | static void noinline |
1002 | static void noinline |
… | |
… | |
886 | for (fd = 0; fd < anfdmax; ++fd) |
1007 | for (fd = 0; fd < anfdmax; ++fd) |
887 | if (anfds [fd].events) |
1008 | if (anfds [fd].events) |
888 | { |
1009 | { |
889 | anfds [fd].events = 0; |
1010 | anfds [fd].events = 0; |
890 | anfds [fd].emask = 0; |
1011 | anfds [fd].emask = 0; |
891 | fd_change (EV_A_ fd, EV__IOFDSET | 1); |
1012 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
892 | } |
1013 | } |
893 | } |
1014 | } |
894 | |
1015 | |
895 | /*****************************************************************************/ |
1016 | /*****************************************************************************/ |
896 | |
1017 | |
… | |
… | |
971 | |
1092 | |
972 | for (;;) |
1093 | for (;;) |
973 | { |
1094 | { |
974 | int c = k << 1; |
1095 | int c = k << 1; |
975 | |
1096 | |
976 | if (c > N + HEAP0 - 1) |
1097 | if (c >= N + HEAP0) |
977 | break; |
1098 | break; |
978 | |
1099 | |
979 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
1100 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
980 | ? 1 : 0; |
1101 | ? 1 : 0; |
981 | |
1102 | |
… | |
… | |
1017 | |
1138 | |
1018 | /* move an element suitably so it is in a correct place */ |
1139 | /* move an element suitably so it is in a correct place */ |
1019 | inline_size void |
1140 | inline_size void |
1020 | adjustheap (ANHE *heap, int N, int k) |
1141 | adjustheap (ANHE *heap, int N, int k) |
1021 | { |
1142 | { |
1022 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
1143 | if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)])) |
1023 | upheap (heap, k); |
1144 | upheap (heap, k); |
1024 | else |
1145 | else |
1025 | downheap (heap, N, k); |
1146 | downheap (heap, N, k); |
1026 | } |
1147 | } |
1027 | |
1148 | |
… | |
… | |
1040 | /*****************************************************************************/ |
1161 | /*****************************************************************************/ |
1041 | |
1162 | |
1042 | /* associate signal watchers to a signal signal */ |
1163 | /* associate signal watchers to a signal signal */ |
1043 | typedef struct |
1164 | typedef struct |
1044 | { |
1165 | { |
|
|
1166 | EV_ATOMIC_T pending; |
|
|
1167 | #if EV_MULTIPLICITY |
|
|
1168 | EV_P; |
|
|
1169 | #endif |
1045 | WL head; |
1170 | WL head; |
1046 | EV_ATOMIC_T gotsig; |
|
|
1047 | } ANSIG; |
1171 | } ANSIG; |
1048 | |
1172 | |
1049 | static ANSIG *signals; |
1173 | static ANSIG signals [EV_NSIG - 1]; |
1050 | static int signalmax; |
|
|
1051 | |
|
|
1052 | static EV_ATOMIC_T gotsig; |
|
|
1053 | |
1174 | |
1054 | /*****************************************************************************/ |
1175 | /*****************************************************************************/ |
1055 | |
1176 | |
1056 | /* used to prepare libev internal fd's */ |
1177 | /* used to prepare libev internal fd's */ |
1057 | /* this is not fork-safe */ |
1178 | /* this is not fork-safe */ |
… | |
… | |
1071 | evpipe_init (EV_P) |
1192 | evpipe_init (EV_P) |
1072 | { |
1193 | { |
1073 | if (!ev_is_active (&pipe_w)) |
1194 | if (!ev_is_active (&pipe_w)) |
1074 | { |
1195 | { |
1075 | #if EV_USE_EVENTFD |
1196 | #if EV_USE_EVENTFD |
|
|
1197 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
|
|
1198 | if (evfd < 0 && errno == EINVAL) |
1076 | if ((evfd = eventfd (0, 0)) >= 0) |
1199 | evfd = eventfd (0, 0); |
|
|
1200 | |
|
|
1201 | if (evfd >= 0) |
1077 | { |
1202 | { |
1078 | evpipe [0] = -1; |
1203 | evpipe [0] = -1; |
1079 | fd_intern (evfd); |
1204 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
1080 | ev_io_set (&pipe_w, evfd, EV_READ); |
1205 | ev_io_set (&pipe_w, evfd, EV_READ); |
1081 | } |
1206 | } |
1082 | else |
1207 | else |
1083 | #endif |
1208 | #endif |
1084 | { |
1209 | { |
… | |
… | |
1121 | /* called whenever the libev signal pipe */ |
1246 | /* called whenever the libev signal pipe */ |
1122 | /* got some events (signal, async) */ |
1247 | /* got some events (signal, async) */ |
1123 | static void |
1248 | static void |
1124 | pipecb (EV_P_ ev_io *iow, int revents) |
1249 | pipecb (EV_P_ ev_io *iow, int revents) |
1125 | { |
1250 | { |
|
|
1251 | int i; |
|
|
1252 | |
1126 | #if EV_USE_EVENTFD |
1253 | #if EV_USE_EVENTFD |
1127 | if (evfd >= 0) |
1254 | if (evfd >= 0) |
1128 | { |
1255 | { |
1129 | uint64_t counter; |
1256 | uint64_t counter; |
1130 | read (evfd, &counter, sizeof (uint64_t)); |
1257 | read (evfd, &counter, sizeof (uint64_t)); |
… | |
… | |
1134 | { |
1261 | { |
1135 | char dummy; |
1262 | char dummy; |
1136 | read (evpipe [0], &dummy, 1); |
1263 | read (evpipe [0], &dummy, 1); |
1137 | } |
1264 | } |
1138 | |
1265 | |
1139 | if (gotsig && ev_is_default_loop (EV_A)) |
1266 | if (sig_pending) |
1140 | { |
1267 | { |
1141 | int signum; |
1268 | sig_pending = 0; |
1142 | gotsig = 0; |
|
|
1143 | |
1269 | |
1144 | for (signum = signalmax; signum--; ) |
1270 | for (i = EV_NSIG - 1; i--; ) |
1145 | if (signals [signum].gotsig) |
1271 | if (expect_false (signals [i].pending)) |
1146 | ev_feed_signal_event (EV_A_ signum + 1); |
1272 | ev_feed_signal_event (EV_A_ i + 1); |
1147 | } |
1273 | } |
1148 | |
1274 | |
1149 | #if EV_ASYNC_ENABLE |
1275 | #if EV_ASYNC_ENABLE |
1150 | if (gotasync) |
1276 | if (async_pending) |
1151 | { |
1277 | { |
1152 | int i; |
1278 | async_pending = 0; |
1153 | gotasync = 0; |
|
|
1154 | |
1279 | |
1155 | for (i = asynccnt; i--; ) |
1280 | for (i = asynccnt; i--; ) |
1156 | if (asyncs [i]->sent) |
1281 | if (asyncs [i]->sent) |
1157 | { |
1282 | { |
1158 | asyncs [i]->sent = 0; |
1283 | asyncs [i]->sent = 0; |
… | |
… | |
1166 | |
1291 | |
1167 | static void |
1292 | static void |
1168 | ev_sighandler (int signum) |
1293 | ev_sighandler (int signum) |
1169 | { |
1294 | { |
1170 | #if EV_MULTIPLICITY |
1295 | #if EV_MULTIPLICITY |
1171 | struct ev_loop *loop = &default_loop_struct; |
1296 | EV_P = signals [signum - 1].loop; |
1172 | #endif |
1297 | #endif |
1173 | |
1298 | |
1174 | #if _WIN32 |
1299 | #if _WIN32 |
1175 | signal (signum, ev_sighandler); |
1300 | signal (signum, ev_sighandler); |
1176 | #endif |
1301 | #endif |
1177 | |
1302 | |
1178 | signals [signum - 1].gotsig = 1; |
1303 | signals [signum - 1].pending = 1; |
1179 | evpipe_write (EV_A_ &gotsig); |
1304 | evpipe_write (EV_A_ &sig_pending); |
1180 | } |
1305 | } |
1181 | |
1306 | |
1182 | void noinline |
1307 | void noinline |
1183 | ev_feed_signal_event (EV_P_ int signum) |
1308 | ev_feed_signal_event (EV_P_ int signum) |
1184 | { |
1309 | { |
1185 | WL w; |
1310 | WL w; |
1186 | |
1311 | |
|
|
1312 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
|
|
1313 | return; |
|
|
1314 | |
|
|
1315 | --signum; |
|
|
1316 | |
1187 | #if EV_MULTIPLICITY |
1317 | #if EV_MULTIPLICITY |
1188 | assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1318 | /* it is permissible to try to feed a signal to the wrong loop */ |
1189 | #endif |
1319 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
1190 | |
1320 | |
1191 | --signum; |
1321 | if (expect_false (signals [signum].loop != EV_A)) |
1192 | |
|
|
1193 | if (signum < 0 || signum >= signalmax) |
|
|
1194 | return; |
1322 | return; |
|
|
1323 | #endif |
1195 | |
1324 | |
1196 | signals [signum].gotsig = 0; |
1325 | signals [signum].pending = 0; |
1197 | |
1326 | |
1198 | for (w = signals [signum].head; w; w = w->next) |
1327 | for (w = signals [signum].head; w; w = w->next) |
1199 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1328 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1200 | } |
1329 | } |
|
|
1330 | |
|
|
1331 | #if EV_USE_SIGNALFD |
|
|
1332 | static void |
|
|
1333 | sigfdcb (EV_P_ ev_io *iow, int revents) |
|
|
1334 | { |
|
|
1335 | struct signalfd_siginfo si[2], *sip; /* these structs are big */ |
|
|
1336 | |
|
|
1337 | for (;;) |
|
|
1338 | { |
|
|
1339 | ssize_t res = read (sigfd, si, sizeof (si)); |
|
|
1340 | |
|
|
1341 | /* not ISO-C, as res might be -1, but works with SuS */ |
|
|
1342 | for (sip = si; (char *)sip < (char *)si + res; ++sip) |
|
|
1343 | ev_feed_signal_event (EV_A_ sip->ssi_signo); |
|
|
1344 | |
|
|
1345 | if (res < (ssize_t)sizeof (si)) |
|
|
1346 | break; |
|
|
1347 | } |
|
|
1348 | } |
|
|
1349 | #endif |
1201 | |
1350 | |
1202 | /*****************************************************************************/ |
1351 | /*****************************************************************************/ |
1203 | |
1352 | |
1204 | static WL childs [EV_PID_HASHSIZE]; |
1353 | static WL childs [EV_PID_HASHSIZE]; |
1205 | |
1354 | |
… | |
… | |
1350 | ev_backend (EV_P) |
1499 | ev_backend (EV_P) |
1351 | { |
1500 | { |
1352 | return backend; |
1501 | return backend; |
1353 | } |
1502 | } |
1354 | |
1503 | |
|
|
1504 | #if EV_MINIMAL < 2 |
1355 | unsigned int |
1505 | unsigned int |
1356 | ev_loop_count (EV_P) |
1506 | ev_loop_count (EV_P) |
1357 | { |
1507 | { |
1358 | return loop_count; |
1508 | return loop_count; |
1359 | } |
1509 | } |
1360 | |
1510 | |
|
|
1511 | unsigned int |
|
|
1512 | ev_loop_depth (EV_P) |
|
|
1513 | { |
|
|
1514 | return loop_depth; |
|
|
1515 | } |
|
|
1516 | |
1361 | void |
1517 | void |
1362 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1518 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1363 | { |
1519 | { |
1364 | io_blocktime = interval; |
1520 | io_blocktime = interval; |
1365 | } |
1521 | } |
… | |
… | |
1367 | void |
1523 | void |
1368 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1524 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1369 | { |
1525 | { |
1370 | timeout_blocktime = interval; |
1526 | timeout_blocktime = interval; |
1371 | } |
1527 | } |
|
|
1528 | |
|
|
1529 | void |
|
|
1530 | ev_set_userdata (EV_P_ void *data) |
|
|
1531 | { |
|
|
1532 | userdata = data; |
|
|
1533 | } |
|
|
1534 | |
|
|
1535 | void * |
|
|
1536 | ev_userdata (EV_P) |
|
|
1537 | { |
|
|
1538 | return userdata; |
|
|
1539 | } |
|
|
1540 | |
|
|
1541 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
|
|
1542 | { |
|
|
1543 | invoke_cb = invoke_pending_cb; |
|
|
1544 | } |
|
|
1545 | |
|
|
1546 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
|
|
1547 | { |
|
|
1548 | release_cb = release; |
|
|
1549 | acquire_cb = acquire; |
|
|
1550 | } |
|
|
1551 | #endif |
1372 | |
1552 | |
1373 | /* initialise a loop structure, must be zero-initialised */ |
1553 | /* initialise a loop structure, must be zero-initialised */ |
1374 | static void noinline |
1554 | static void noinline |
1375 | loop_init (EV_P_ unsigned int flags) |
1555 | loop_init (EV_P_ unsigned int flags) |
1376 | { |
1556 | { |
… | |
… | |
1394 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1574 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1395 | have_monotonic = 1; |
1575 | have_monotonic = 1; |
1396 | } |
1576 | } |
1397 | #endif |
1577 | #endif |
1398 | |
1578 | |
|
|
1579 | /* pid check not overridable via env */ |
|
|
1580 | #ifndef _WIN32 |
|
|
1581 | if (flags & EVFLAG_FORKCHECK) |
|
|
1582 | curpid = getpid (); |
|
|
1583 | #endif |
|
|
1584 | |
|
|
1585 | if (!(flags & EVFLAG_NOENV) |
|
|
1586 | && !enable_secure () |
|
|
1587 | && getenv ("LIBEV_FLAGS")) |
|
|
1588 | flags = atoi (getenv ("LIBEV_FLAGS")); |
|
|
1589 | |
1399 | ev_rt_now = ev_time (); |
1590 | ev_rt_now = ev_time (); |
1400 | mn_now = get_clock (); |
1591 | mn_now = get_clock (); |
1401 | now_floor = mn_now; |
1592 | now_floor = mn_now; |
1402 | rtmn_diff = ev_rt_now - mn_now; |
1593 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1594 | #if EV_MINIMAL < 2 |
|
|
1595 | invoke_cb = ev_invoke_pending; |
|
|
1596 | #endif |
1403 | |
1597 | |
1404 | io_blocktime = 0.; |
1598 | io_blocktime = 0.; |
1405 | timeout_blocktime = 0.; |
1599 | timeout_blocktime = 0.; |
1406 | backend = 0; |
1600 | backend = 0; |
1407 | backend_fd = -1; |
1601 | backend_fd = -1; |
1408 | gotasync = 0; |
1602 | sig_pending = 0; |
|
|
1603 | #if EV_ASYNC_ENABLE |
|
|
1604 | async_pending = 0; |
|
|
1605 | #endif |
1409 | #if EV_USE_INOTIFY |
1606 | #if EV_USE_INOTIFY |
1410 | fs_fd = -2; |
1607 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1411 | #endif |
1608 | #endif |
1412 | |
1609 | #if EV_USE_SIGNALFD |
1413 | /* pid check not overridable via env */ |
1610 | sigfd = flags & EVFLAG_NOSIGFD ? -1 : -2; |
1414 | #ifndef _WIN32 |
|
|
1415 | if (flags & EVFLAG_FORKCHECK) |
|
|
1416 | curpid = getpid (); |
|
|
1417 | #endif |
1611 | #endif |
1418 | |
|
|
1419 | if (!(flags & EVFLAG_NOENV) |
|
|
1420 | && !enable_secure () |
|
|
1421 | && getenv ("LIBEV_FLAGS")) |
|
|
1422 | flags = atoi (getenv ("LIBEV_FLAGS")); |
|
|
1423 | |
1612 | |
1424 | if (!(flags & 0x0000ffffU)) |
1613 | if (!(flags & 0x0000ffffU)) |
1425 | flags |= ev_recommended_backends (); |
1614 | flags |= ev_recommended_backends (); |
1426 | |
1615 | |
1427 | #if EV_USE_PORT |
1616 | #if EV_USE_PORT |
… | |
… | |
1453 | { |
1642 | { |
1454 | int i; |
1643 | int i; |
1455 | |
1644 | |
1456 | if (ev_is_active (&pipe_w)) |
1645 | if (ev_is_active (&pipe_w)) |
1457 | { |
1646 | { |
1458 | ev_ref (EV_A); /* signal watcher */ |
1647 | /*ev_ref (EV_A);*/ |
1459 | ev_io_stop (EV_A_ &pipe_w); |
1648 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1460 | |
1649 | |
1461 | #if EV_USE_EVENTFD |
1650 | #if EV_USE_EVENTFD |
1462 | if (evfd >= 0) |
1651 | if (evfd >= 0) |
1463 | close (evfd); |
1652 | close (evfd); |
1464 | #endif |
1653 | #endif |
1465 | |
1654 | |
1466 | if (evpipe [0] >= 0) |
1655 | if (evpipe [0] >= 0) |
1467 | { |
1656 | { |
1468 | close (evpipe [0]); |
1657 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1469 | close (evpipe [1]); |
1658 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1470 | } |
1659 | } |
1471 | } |
1660 | } |
|
|
1661 | |
|
|
1662 | #if EV_USE_SIGNALFD |
|
|
1663 | if (ev_is_active (&sigfd_w)) |
|
|
1664 | close (sigfd); |
|
|
1665 | #endif |
1472 | |
1666 | |
1473 | #if EV_USE_INOTIFY |
1667 | #if EV_USE_INOTIFY |
1474 | if (fs_fd >= 0) |
1668 | if (fs_fd >= 0) |
1475 | close (fs_fd); |
1669 | close (fs_fd); |
1476 | #endif |
1670 | #endif |
… | |
… | |
1500 | #if EV_IDLE_ENABLE |
1694 | #if EV_IDLE_ENABLE |
1501 | array_free (idle, [i]); |
1695 | array_free (idle, [i]); |
1502 | #endif |
1696 | #endif |
1503 | } |
1697 | } |
1504 | |
1698 | |
1505 | ev_free (anfds); anfdmax = 0; |
1699 | ev_free (anfds); anfds = 0; anfdmax = 0; |
1506 | |
1700 | |
1507 | /* have to use the microsoft-never-gets-it-right macro */ |
1701 | /* have to use the microsoft-never-gets-it-right macro */ |
1508 | array_free (rfeed, EMPTY); |
1702 | array_free (rfeed, EMPTY); |
1509 | array_free (fdchange, EMPTY); |
1703 | array_free (fdchange, EMPTY); |
1510 | array_free (timer, EMPTY); |
1704 | array_free (timer, EMPTY); |
… | |
… | |
1545 | |
1739 | |
1546 | if (ev_is_active (&pipe_w)) |
1740 | if (ev_is_active (&pipe_w)) |
1547 | { |
1741 | { |
1548 | /* this "locks" the handlers against writing to the pipe */ |
1742 | /* this "locks" the handlers against writing to the pipe */ |
1549 | /* while we modify the fd vars */ |
1743 | /* while we modify the fd vars */ |
1550 | gotsig = 1; |
1744 | sig_pending = 1; |
1551 | #if EV_ASYNC_ENABLE |
1745 | #if EV_ASYNC_ENABLE |
1552 | gotasync = 1; |
1746 | async_pending = 1; |
1553 | #endif |
1747 | #endif |
1554 | |
1748 | |
1555 | ev_ref (EV_A); |
1749 | ev_ref (EV_A); |
1556 | ev_io_stop (EV_A_ &pipe_w); |
1750 | ev_io_stop (EV_A_ &pipe_w); |
1557 | |
1751 | |
… | |
… | |
1560 | close (evfd); |
1754 | close (evfd); |
1561 | #endif |
1755 | #endif |
1562 | |
1756 | |
1563 | if (evpipe [0] >= 0) |
1757 | if (evpipe [0] >= 0) |
1564 | { |
1758 | { |
1565 | close (evpipe [0]); |
1759 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1566 | close (evpipe [1]); |
1760 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1567 | } |
1761 | } |
1568 | |
1762 | |
1569 | evpipe_init (EV_A); |
1763 | evpipe_init (EV_A); |
1570 | /* now iterate over everything, in case we missed something */ |
1764 | /* now iterate over everything, in case we missed something */ |
1571 | pipecb (EV_A_ &pipe_w, EV_READ); |
1765 | pipecb (EV_A_ &pipe_w, EV_READ); |
… | |
… | |
1577 | #if EV_MULTIPLICITY |
1771 | #if EV_MULTIPLICITY |
1578 | |
1772 | |
1579 | struct ev_loop * |
1773 | struct ev_loop * |
1580 | ev_loop_new (unsigned int flags) |
1774 | ev_loop_new (unsigned int flags) |
1581 | { |
1775 | { |
1582 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1776 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1583 | |
1777 | |
1584 | memset (loop, 0, sizeof (struct ev_loop)); |
1778 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1585 | |
|
|
1586 | loop_init (EV_A_ flags); |
1779 | loop_init (EV_A_ flags); |
1587 | |
1780 | |
1588 | if (ev_backend (EV_A)) |
1781 | if (ev_backend (EV_A)) |
1589 | return loop; |
1782 | return EV_A; |
1590 | |
1783 | |
1591 | return 0; |
1784 | return 0; |
1592 | } |
1785 | } |
1593 | |
1786 | |
1594 | void |
1787 | void |
… | |
… | |
1601 | void |
1794 | void |
1602 | ev_loop_fork (EV_P) |
1795 | ev_loop_fork (EV_P) |
1603 | { |
1796 | { |
1604 | postfork = 1; /* must be in line with ev_default_fork */ |
1797 | postfork = 1; /* must be in line with ev_default_fork */ |
1605 | } |
1798 | } |
|
|
1799 | #endif /* multiplicity */ |
1606 | |
1800 | |
1607 | #if EV_VERIFY |
1801 | #if EV_VERIFY |
1608 | static void noinline |
1802 | static void noinline |
1609 | verify_watcher (EV_P_ W w) |
1803 | verify_watcher (EV_P_ W w) |
1610 | { |
1804 | { |
… | |
… | |
1638 | verify_watcher (EV_A_ ws [cnt]); |
1832 | verify_watcher (EV_A_ ws [cnt]); |
1639 | } |
1833 | } |
1640 | } |
1834 | } |
1641 | #endif |
1835 | #endif |
1642 | |
1836 | |
|
|
1837 | #if EV_MINIMAL < 2 |
1643 | void |
1838 | void |
1644 | ev_loop_verify (EV_P) |
1839 | ev_loop_verify (EV_P) |
1645 | { |
1840 | { |
1646 | #if EV_VERIFY |
1841 | #if EV_VERIFY |
1647 | int i; |
1842 | int i; |
… | |
… | |
1696 | assert (checkmax >= checkcnt); |
1891 | assert (checkmax >= checkcnt); |
1697 | array_verify (EV_A_ (W *)checks, checkcnt); |
1892 | array_verify (EV_A_ (W *)checks, checkcnt); |
1698 | |
1893 | |
1699 | # if 0 |
1894 | # if 0 |
1700 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1895 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1701 | for (signum = signalmax; signum--; ) if (signals [signum].gotsig) |
1896 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
1702 | # endif |
|
|
1703 | #endif |
1897 | # endif |
|
|
1898 | #endif |
1704 | } |
1899 | } |
1705 | |
1900 | #endif |
1706 | #endif /* multiplicity */ |
|
|
1707 | |
1901 | |
1708 | #if EV_MULTIPLICITY |
1902 | #if EV_MULTIPLICITY |
1709 | struct ev_loop * |
1903 | struct ev_loop * |
1710 | ev_default_loop_init (unsigned int flags) |
1904 | ev_default_loop_init (unsigned int flags) |
1711 | #else |
1905 | #else |
… | |
… | |
1714 | #endif |
1908 | #endif |
1715 | { |
1909 | { |
1716 | if (!ev_default_loop_ptr) |
1910 | if (!ev_default_loop_ptr) |
1717 | { |
1911 | { |
1718 | #if EV_MULTIPLICITY |
1912 | #if EV_MULTIPLICITY |
1719 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1913 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
1720 | #else |
1914 | #else |
1721 | ev_default_loop_ptr = 1; |
1915 | ev_default_loop_ptr = 1; |
1722 | #endif |
1916 | #endif |
1723 | |
1917 | |
1724 | loop_init (EV_A_ flags); |
1918 | loop_init (EV_A_ flags); |
… | |
… | |
1741 | |
1935 | |
1742 | void |
1936 | void |
1743 | ev_default_destroy (void) |
1937 | ev_default_destroy (void) |
1744 | { |
1938 | { |
1745 | #if EV_MULTIPLICITY |
1939 | #if EV_MULTIPLICITY |
1746 | struct ev_loop *loop = ev_default_loop_ptr; |
1940 | EV_P = ev_default_loop_ptr; |
1747 | #endif |
1941 | #endif |
1748 | |
1942 | |
1749 | ev_default_loop_ptr = 0; |
1943 | ev_default_loop_ptr = 0; |
1750 | |
1944 | |
1751 | #ifndef _WIN32 |
1945 | #ifndef _WIN32 |
… | |
… | |
1758 | |
1952 | |
1759 | void |
1953 | void |
1760 | ev_default_fork (void) |
1954 | ev_default_fork (void) |
1761 | { |
1955 | { |
1762 | #if EV_MULTIPLICITY |
1956 | #if EV_MULTIPLICITY |
1763 | struct ev_loop *loop = ev_default_loop_ptr; |
1957 | EV_P = ev_default_loop_ptr; |
1764 | #endif |
1958 | #endif |
1765 | |
1959 | |
1766 | postfork = 1; /* must be in line with ev_loop_fork */ |
1960 | postfork = 1; /* must be in line with ev_loop_fork */ |
1767 | } |
1961 | } |
1768 | |
1962 | |
… | |
… | |
1772 | ev_invoke (EV_P_ void *w, int revents) |
1966 | ev_invoke (EV_P_ void *w, int revents) |
1773 | { |
1967 | { |
1774 | EV_CB_INVOKE ((W)w, revents); |
1968 | EV_CB_INVOKE ((W)w, revents); |
1775 | } |
1969 | } |
1776 | |
1970 | |
1777 | inline_speed void |
1971 | unsigned int |
1778 | call_pending (EV_P) |
1972 | ev_pending_count (EV_P) |
|
|
1973 | { |
|
|
1974 | int pri; |
|
|
1975 | unsigned int count = 0; |
|
|
1976 | |
|
|
1977 | for (pri = NUMPRI; pri--; ) |
|
|
1978 | count += pendingcnt [pri]; |
|
|
1979 | |
|
|
1980 | return count; |
|
|
1981 | } |
|
|
1982 | |
|
|
1983 | void noinline |
|
|
1984 | ev_invoke_pending (EV_P) |
1779 | { |
1985 | { |
1780 | int pri; |
1986 | int pri; |
1781 | |
1987 | |
1782 | for (pri = NUMPRI; pri--; ) |
1988 | for (pri = NUMPRI; pri--; ) |
1783 | while (pendingcnt [pri]) |
1989 | while (pendingcnt [pri]) |
… | |
… | |
2018 | |
2224 | |
2019 | mn_now = ev_rt_now; |
2225 | mn_now = ev_rt_now; |
2020 | } |
2226 | } |
2021 | } |
2227 | } |
2022 | |
2228 | |
2023 | static int loop_done; |
|
|
2024 | |
|
|
2025 | void |
2229 | void |
2026 | ev_loop (EV_P_ int flags) |
2230 | ev_loop (EV_P_ int flags) |
2027 | { |
2231 | { |
|
|
2232 | #if EV_MINIMAL < 2 |
|
|
2233 | ++loop_depth; |
|
|
2234 | #endif |
|
|
2235 | |
|
|
2236 | assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); |
|
|
2237 | |
2028 | loop_done = EVUNLOOP_CANCEL; |
2238 | loop_done = EVUNLOOP_CANCEL; |
2029 | |
2239 | |
2030 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
2240 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
2031 | |
2241 | |
2032 | do |
2242 | do |
2033 | { |
2243 | { |
2034 | #if EV_VERIFY >= 2 |
2244 | #if EV_VERIFY >= 2 |
2035 | ev_loop_verify (EV_A); |
2245 | ev_loop_verify (EV_A); |
… | |
… | |
2048 | /* we might have forked, so queue fork handlers */ |
2258 | /* we might have forked, so queue fork handlers */ |
2049 | if (expect_false (postfork)) |
2259 | if (expect_false (postfork)) |
2050 | if (forkcnt) |
2260 | if (forkcnt) |
2051 | { |
2261 | { |
2052 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2262 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2053 | call_pending (EV_A); |
2263 | EV_INVOKE_PENDING; |
2054 | } |
2264 | } |
2055 | #endif |
2265 | #endif |
2056 | |
2266 | |
2057 | /* queue prepare watchers (and execute them) */ |
2267 | /* queue prepare watchers (and execute them) */ |
2058 | if (expect_false (preparecnt)) |
2268 | if (expect_false (preparecnt)) |
2059 | { |
2269 | { |
2060 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2270 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2061 | call_pending (EV_A); |
2271 | EV_INVOKE_PENDING; |
2062 | } |
2272 | } |
|
|
2273 | |
|
|
2274 | if (expect_false (loop_done)) |
|
|
2275 | break; |
2063 | |
2276 | |
2064 | /* we might have forked, so reify kernel state if necessary */ |
2277 | /* we might have forked, so reify kernel state if necessary */ |
2065 | if (expect_false (postfork)) |
2278 | if (expect_false (postfork)) |
2066 | loop_fork (EV_A); |
2279 | loop_fork (EV_A); |
2067 | |
2280 | |
… | |
… | |
2073 | ev_tstamp waittime = 0.; |
2286 | ev_tstamp waittime = 0.; |
2074 | ev_tstamp sleeptime = 0.; |
2287 | ev_tstamp sleeptime = 0.; |
2075 | |
2288 | |
2076 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2289 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2077 | { |
2290 | { |
|
|
2291 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2292 | ev_tstamp prev_mn_now = mn_now; |
|
|
2293 | |
2078 | /* update time to cancel out callback processing overhead */ |
2294 | /* update time to cancel out callback processing overhead */ |
2079 | time_update (EV_A_ 1e100); |
2295 | time_update (EV_A_ 1e100); |
2080 | |
2296 | |
2081 | waittime = MAX_BLOCKTIME; |
2297 | waittime = MAX_BLOCKTIME; |
2082 | |
2298 | |
… | |
… | |
2092 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
2308 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
2093 | if (waittime > to) waittime = to; |
2309 | if (waittime > to) waittime = to; |
2094 | } |
2310 | } |
2095 | #endif |
2311 | #endif |
2096 | |
2312 | |
|
|
2313 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
2097 | if (expect_false (waittime < timeout_blocktime)) |
2314 | if (expect_false (waittime < timeout_blocktime)) |
2098 | waittime = timeout_blocktime; |
2315 | waittime = timeout_blocktime; |
2099 | |
2316 | |
2100 | sleeptime = waittime - backend_fudge; |
2317 | /* extra check because io_blocktime is commonly 0 */ |
2101 | |
|
|
2102 | if (expect_true (sleeptime > io_blocktime)) |
2318 | if (expect_false (io_blocktime)) |
2103 | sleeptime = io_blocktime; |
|
|
2104 | |
|
|
2105 | if (sleeptime) |
|
|
2106 | { |
2319 | { |
|
|
2320 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
|
|
2321 | |
|
|
2322 | if (sleeptime > waittime - backend_fudge) |
|
|
2323 | sleeptime = waittime - backend_fudge; |
|
|
2324 | |
|
|
2325 | if (expect_true (sleeptime > 0.)) |
|
|
2326 | { |
2107 | ev_sleep (sleeptime); |
2327 | ev_sleep (sleeptime); |
2108 | waittime -= sleeptime; |
2328 | waittime -= sleeptime; |
|
|
2329 | } |
2109 | } |
2330 | } |
2110 | } |
2331 | } |
2111 | |
2332 | |
|
|
2333 | #if EV_MINIMAL < 2 |
2112 | ++loop_count; |
2334 | ++loop_count; |
|
|
2335 | #endif |
|
|
2336 | assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ |
2113 | backend_poll (EV_A_ waittime); |
2337 | backend_poll (EV_A_ waittime); |
|
|
2338 | assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ |
2114 | |
2339 | |
2115 | /* update ev_rt_now, do magic */ |
2340 | /* update ev_rt_now, do magic */ |
2116 | time_update (EV_A_ waittime + sleeptime); |
2341 | time_update (EV_A_ waittime + sleeptime); |
2117 | } |
2342 | } |
2118 | |
2343 | |
… | |
… | |
2129 | |
2354 | |
2130 | /* queue check watchers, to be executed first */ |
2355 | /* queue check watchers, to be executed first */ |
2131 | if (expect_false (checkcnt)) |
2356 | if (expect_false (checkcnt)) |
2132 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2357 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2133 | |
2358 | |
2134 | call_pending (EV_A); |
2359 | EV_INVOKE_PENDING; |
2135 | } |
2360 | } |
2136 | while (expect_true ( |
2361 | while (expect_true ( |
2137 | activecnt |
2362 | activecnt |
2138 | && !loop_done |
2363 | && !loop_done |
2139 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2364 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2140 | )); |
2365 | )); |
2141 | |
2366 | |
2142 | if (loop_done == EVUNLOOP_ONE) |
2367 | if (loop_done == EVUNLOOP_ONE) |
2143 | loop_done = EVUNLOOP_CANCEL; |
2368 | loop_done = EVUNLOOP_CANCEL; |
|
|
2369 | |
|
|
2370 | #if EV_MINIMAL < 2 |
|
|
2371 | --loop_depth; |
|
|
2372 | #endif |
2144 | } |
2373 | } |
2145 | |
2374 | |
2146 | void |
2375 | void |
2147 | ev_unloop (EV_P_ int how) |
2376 | ev_unloop (EV_P_ int how) |
2148 | { |
2377 | { |
… | |
… | |
2199 | inline_size void |
2428 | inline_size void |
2200 | wlist_del (WL *head, WL elem) |
2429 | wlist_del (WL *head, WL elem) |
2201 | { |
2430 | { |
2202 | while (*head) |
2431 | while (*head) |
2203 | { |
2432 | { |
2204 | if (*head == elem) |
2433 | if (expect_true (*head == elem)) |
2205 | { |
2434 | { |
2206 | *head = elem->next; |
2435 | *head = elem->next; |
2207 | return; |
2436 | break; |
2208 | } |
2437 | } |
2209 | |
2438 | |
2210 | head = &(*head)->next; |
2439 | head = &(*head)->next; |
2211 | } |
2440 | } |
2212 | } |
2441 | } |
… | |
… | |
2240 | } |
2469 | } |
2241 | |
2470 | |
2242 | inline_size void |
2471 | inline_size void |
2243 | pri_adjust (EV_P_ W w) |
2472 | pri_adjust (EV_P_ W w) |
2244 | { |
2473 | { |
2245 | int pri = w->priority; |
2474 | int pri = ev_priority (w); |
2246 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2475 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2247 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2476 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2248 | w->priority = pri; |
2477 | ev_set_priority (w, pri); |
2249 | } |
2478 | } |
2250 | |
2479 | |
2251 | inline_speed void |
2480 | inline_speed void |
2252 | ev_start (EV_P_ W w, int active) |
2481 | ev_start (EV_P_ W w, int active) |
2253 | { |
2482 | { |
… | |
… | |
2280 | |
2509 | |
2281 | ev_start (EV_A_ (W)w, 1); |
2510 | ev_start (EV_A_ (W)w, 1); |
2282 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2511 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2283 | wlist_add (&anfds[fd].head, (WL)w); |
2512 | wlist_add (&anfds[fd].head, (WL)w); |
2284 | |
2513 | |
2285 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | 1); |
2514 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
2286 | w->events &= ~EV__IOFDSET; |
2515 | w->events &= ~EV__IOFDSET; |
2287 | |
2516 | |
2288 | EV_FREQUENT_CHECK; |
2517 | EV_FREQUENT_CHECK; |
2289 | } |
2518 | } |
2290 | |
2519 | |
… | |
… | |
2384 | } |
2613 | } |
2385 | |
2614 | |
2386 | EV_FREQUENT_CHECK; |
2615 | EV_FREQUENT_CHECK; |
2387 | } |
2616 | } |
2388 | |
2617 | |
|
|
2618 | ev_tstamp |
|
|
2619 | ev_timer_remaining (EV_P_ ev_timer *w) |
|
|
2620 | { |
|
|
2621 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
|
|
2622 | } |
|
|
2623 | |
2389 | #if EV_PERIODIC_ENABLE |
2624 | #if EV_PERIODIC_ENABLE |
2390 | void noinline |
2625 | void noinline |
2391 | ev_periodic_start (EV_P_ ev_periodic *w) |
2626 | ev_periodic_start (EV_P_ ev_periodic *w) |
2392 | { |
2627 | { |
2393 | if (expect_false (ev_is_active (w))) |
2628 | if (expect_false (ev_is_active (w))) |
… | |
… | |
2460 | #endif |
2695 | #endif |
2461 | |
2696 | |
2462 | void noinline |
2697 | void noinline |
2463 | ev_signal_start (EV_P_ ev_signal *w) |
2698 | ev_signal_start (EV_P_ ev_signal *w) |
2464 | { |
2699 | { |
2465 | #if EV_MULTIPLICITY |
|
|
2466 | assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
2467 | #endif |
|
|
2468 | if (expect_false (ev_is_active (w))) |
2700 | if (expect_false (ev_is_active (w))) |
2469 | return; |
2701 | return; |
2470 | |
2702 | |
2471 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); |
2703 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
2472 | |
2704 | |
2473 | evpipe_init (EV_A); |
2705 | #if EV_MULTIPLICITY |
|
|
2706 | assert (("libev: a signal must not be attached to two different loops", |
|
|
2707 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
2474 | |
2708 | |
2475 | EV_FREQUENT_CHECK; |
2709 | signals [w->signum - 1].loop = EV_A; |
|
|
2710 | #endif |
2476 | |
2711 | |
|
|
2712 | EV_FREQUENT_CHECK; |
|
|
2713 | |
|
|
2714 | #if EV_USE_SIGNALFD |
|
|
2715 | if (sigfd == -2) |
2477 | { |
2716 | { |
2478 | #ifndef _WIN32 |
2717 | sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC); |
2479 | sigset_t full, prev; |
2718 | if (sigfd < 0 && errno == EINVAL) |
2480 | sigfillset (&full); |
2719 | sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */ |
2481 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2482 | #endif |
|
|
2483 | |
2720 | |
2484 | array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); |
2721 | if (sigfd >= 0) |
|
|
2722 | { |
|
|
2723 | fd_intern (sigfd); /* doing it twice will not hurt */ |
2485 | |
2724 | |
2486 | #ifndef _WIN32 |
2725 | sigemptyset (&sigfd_set); |
2487 | sigprocmask (SIG_SETMASK, &prev, 0); |
2726 | |
2488 | #endif |
2727 | ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ); |
|
|
2728 | ev_set_priority (&sigfd_w, EV_MAXPRI); |
|
|
2729 | ev_io_start (EV_A_ &sigfd_w); |
|
|
2730 | ev_unref (EV_A); /* signalfd watcher should not keep loop alive */ |
|
|
2731 | } |
2489 | } |
2732 | } |
|
|
2733 | |
|
|
2734 | if (sigfd >= 0) |
|
|
2735 | { |
|
|
2736 | /* TODO: check .head */ |
|
|
2737 | sigaddset (&sigfd_set, w->signum); |
|
|
2738 | sigprocmask (SIG_BLOCK, &sigfd_set, 0); |
|
|
2739 | |
|
|
2740 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2741 | } |
|
|
2742 | #endif |
2490 | |
2743 | |
2491 | ev_start (EV_A_ (W)w, 1); |
2744 | ev_start (EV_A_ (W)w, 1); |
2492 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2745 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2493 | |
2746 | |
2494 | if (!((WL)w)->next) |
2747 | if (!((WL)w)->next) |
|
|
2748 | # if EV_USE_SIGNALFD |
|
|
2749 | if (sigfd < 0) /*TODO*/ |
|
|
2750 | # endif |
2495 | { |
2751 | { |
2496 | #if _WIN32 |
2752 | # if _WIN32 |
|
|
2753 | evpipe_init (EV_A); |
|
|
2754 | |
2497 | signal (w->signum, ev_sighandler); |
2755 | signal (w->signum, ev_sighandler); |
2498 | #else |
2756 | # else |
2499 | struct sigaction sa; |
2757 | struct sigaction sa; |
|
|
2758 | |
|
|
2759 | evpipe_init (EV_A); |
|
|
2760 | |
2500 | sa.sa_handler = ev_sighandler; |
2761 | sa.sa_handler = ev_sighandler; |
2501 | sigfillset (&sa.sa_mask); |
2762 | sigfillset (&sa.sa_mask); |
2502 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2763 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2503 | sigaction (w->signum, &sa, 0); |
2764 | sigaction (w->signum, &sa, 0); |
|
|
2765 | |
|
|
2766 | sigemptyset (&sa.sa_mask); |
|
|
2767 | sigaddset (&sa.sa_mask, w->signum); |
|
|
2768 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
2504 | #endif |
2769 | #endif |
2505 | } |
2770 | } |
2506 | |
2771 | |
2507 | EV_FREQUENT_CHECK; |
2772 | EV_FREQUENT_CHECK; |
2508 | } |
2773 | } |
2509 | |
2774 | |
2510 | void noinline |
2775 | void noinline |
… | |
… | |
2518 | |
2783 | |
2519 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2784 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2520 | ev_stop (EV_A_ (W)w); |
2785 | ev_stop (EV_A_ (W)w); |
2521 | |
2786 | |
2522 | if (!signals [w->signum - 1].head) |
2787 | if (!signals [w->signum - 1].head) |
|
|
2788 | { |
|
|
2789 | #if EV_MULTIPLICITY |
|
|
2790 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
|
|
2791 | #endif |
|
|
2792 | #if EV_USE_SIGNALFD |
|
|
2793 | if (sigfd >= 0) |
|
|
2794 | { |
|
|
2795 | sigprocmask (SIG_UNBLOCK, &sigfd_set, 0);//D |
|
|
2796 | sigdelset (&sigfd_set, w->signum); |
|
|
2797 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2798 | sigprocmask (SIG_BLOCK, &sigfd_set, 0);//D |
|
|
2799 | /*TODO: maybe unblock signal? */ |
|
|
2800 | } |
|
|
2801 | else |
|
|
2802 | #endif |
2523 | signal (w->signum, SIG_DFL); |
2803 | signal (w->signum, SIG_DFL); |
|
|
2804 | } |
2524 | |
2805 | |
2525 | EV_FREQUENT_CHECK; |
2806 | EV_FREQUENT_CHECK; |
2526 | } |
2807 | } |
2527 | |
2808 | |
2528 | void |
2809 | void |
… | |
… | |
2576 | static void noinline |
2857 | static void noinline |
2577 | infy_add (EV_P_ ev_stat *w) |
2858 | infy_add (EV_P_ ev_stat *w) |
2578 | { |
2859 | { |
2579 | w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); |
2860 | w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); |
2580 | |
2861 | |
2581 | if (w->wd < 0) |
2862 | if (w->wd >= 0) |
|
|
2863 | { |
|
|
2864 | struct statfs sfs; |
|
|
2865 | |
|
|
2866 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
2867 | /* unless the filesystem is known to be local, we therefore still poll */ |
|
|
2868 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2869 | |
|
|
2870 | if (!fs_2625) |
|
|
2871 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
2872 | else if (!statfs (w->path, &sfs) |
|
|
2873 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
2874 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2875 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2876 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2877 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2878 | || sfs.f_type == 0x58465342 /* xfs */)) |
|
|
2879 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
|
|
2880 | else |
|
|
2881 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
2582 | { |
2882 | } |
|
|
2883 | else |
|
|
2884 | { |
|
|
2885 | /* can't use inotify, continue to stat */ |
2583 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2886 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2584 | ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
|
|
2585 | |
2887 | |
2586 | /* monitor some parent directory for speedup hints */ |
2888 | /* if path is not there, monitor some parent directory for speedup hints */ |
2587 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2889 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2588 | /* but an efficiency issue only */ |
2890 | /* but an efficiency issue only */ |
2589 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2891 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2590 | { |
2892 | { |
2591 | char path [4096]; |
2893 | char path [4096]; |
… | |
… | |
2607 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2909 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2608 | } |
2910 | } |
2609 | } |
2911 | } |
2610 | |
2912 | |
2611 | if (w->wd >= 0) |
2913 | if (w->wd >= 0) |
2612 | { |
|
|
2613 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2914 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2614 | |
2915 | |
2615 | /* now local changes will be tracked by inotify, but remote changes won't */ |
2916 | /* now re-arm timer, if required */ |
2616 | /* unless the filesystem it known to be local, we therefore still poll */ |
2917 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2617 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2618 | struct statfs sfs; |
|
|
2619 | |
|
|
2620 | if (fs_2625 && !statfs (w->path, &sfs)) |
|
|
2621 | if (sfs.f_type == 0x1373 /* devfs */ |
|
|
2622 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2623 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2624 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2625 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2626 | || sfs.f_type == 0x58465342 /* xfs */) |
|
|
2627 | return; |
|
|
2628 | |
|
|
2629 | w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2630 | ev_timer_again (EV_A_ &w->timer); |
2918 | ev_timer_again (EV_A_ &w->timer); |
2631 | } |
2919 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
2632 | } |
2920 | } |
2633 | |
2921 | |
2634 | static void noinline |
2922 | static void noinline |
2635 | infy_del (EV_P_ ev_stat *w) |
2923 | infy_del (EV_P_ ev_stat *w) |
2636 | { |
2924 | { |
… | |
… | |
2712 | return; |
3000 | return; |
2713 | |
3001 | |
2714 | fs_2625 = 1; |
3002 | fs_2625 = 1; |
2715 | } |
3003 | } |
2716 | |
3004 | |
|
|
3005 | inline_size int |
|
|
3006 | infy_newfd (void) |
|
|
3007 | { |
|
|
3008 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
|
|
3009 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
|
|
3010 | if (fd >= 0) |
|
|
3011 | return fd; |
|
|
3012 | #endif |
|
|
3013 | return inotify_init (); |
|
|
3014 | } |
|
|
3015 | |
2717 | inline_size void |
3016 | inline_size void |
2718 | infy_init (EV_P) |
3017 | infy_init (EV_P) |
2719 | { |
3018 | { |
2720 | if (fs_fd != -2) |
3019 | if (fs_fd != -2) |
2721 | return; |
3020 | return; |
2722 | |
3021 | |
2723 | fs_fd = -1; |
3022 | fs_fd = -1; |
2724 | |
3023 | |
2725 | check_2625 (EV_A); |
3024 | check_2625 (EV_A); |
2726 | |
3025 | |
2727 | fs_fd = inotify_init (); |
3026 | fs_fd = infy_newfd (); |
2728 | |
3027 | |
2729 | if (fs_fd >= 0) |
3028 | if (fs_fd >= 0) |
2730 | { |
3029 | { |
|
|
3030 | fd_intern (fs_fd); |
2731 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
3031 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
2732 | ev_set_priority (&fs_w, EV_MAXPRI); |
3032 | ev_set_priority (&fs_w, EV_MAXPRI); |
2733 | ev_io_start (EV_A_ &fs_w); |
3033 | ev_io_start (EV_A_ &fs_w); |
|
|
3034 | ev_unref (EV_A); |
2734 | } |
3035 | } |
2735 | } |
3036 | } |
2736 | |
3037 | |
2737 | inline_size void |
3038 | inline_size void |
2738 | infy_fork (EV_P) |
3039 | infy_fork (EV_P) |
… | |
… | |
2740 | int slot; |
3041 | int slot; |
2741 | |
3042 | |
2742 | if (fs_fd < 0) |
3043 | if (fs_fd < 0) |
2743 | return; |
3044 | return; |
2744 | |
3045 | |
|
|
3046 | ev_ref (EV_A); |
|
|
3047 | ev_io_stop (EV_A_ &fs_w); |
2745 | close (fs_fd); |
3048 | close (fs_fd); |
2746 | fs_fd = inotify_init (); |
3049 | fs_fd = infy_newfd (); |
|
|
3050 | |
|
|
3051 | if (fs_fd >= 0) |
|
|
3052 | { |
|
|
3053 | fd_intern (fs_fd); |
|
|
3054 | ev_io_set (&fs_w, fs_fd, EV_READ); |
|
|
3055 | ev_io_start (EV_A_ &fs_w); |
|
|
3056 | ev_unref (EV_A); |
|
|
3057 | } |
2747 | |
3058 | |
2748 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3059 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2749 | { |
3060 | { |
2750 | WL w_ = fs_hash [slot].head; |
3061 | WL w_ = fs_hash [slot].head; |
2751 | fs_hash [slot].head = 0; |
3062 | fs_hash [slot].head = 0; |
… | |
… | |
2758 | w->wd = -1; |
3069 | w->wd = -1; |
2759 | |
3070 | |
2760 | if (fs_fd >= 0) |
3071 | if (fs_fd >= 0) |
2761 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3072 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2762 | else |
3073 | else |
|
|
3074 | { |
|
|
3075 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3076 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2763 | ev_timer_again (EV_A_ &w->timer); |
3077 | ev_timer_again (EV_A_ &w->timer); |
|
|
3078 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
|
|
3079 | } |
2764 | } |
3080 | } |
2765 | } |
3081 | } |
2766 | } |
3082 | } |
2767 | |
3083 | |
2768 | #endif |
3084 | #endif |
… | |
… | |
2838 | |
3154 | |
2839 | if (fs_fd >= 0) |
3155 | if (fs_fd >= 0) |
2840 | infy_add (EV_A_ w); |
3156 | infy_add (EV_A_ w); |
2841 | else |
3157 | else |
2842 | #endif |
3158 | #endif |
|
|
3159 | { |
2843 | ev_timer_again (EV_A_ &w->timer); |
3160 | ev_timer_again (EV_A_ &w->timer); |
|
|
3161 | ev_unref (EV_A); |
|
|
3162 | } |
2844 | |
3163 | |
2845 | ev_start (EV_A_ (W)w, 1); |
3164 | ev_start (EV_A_ (W)w, 1); |
2846 | |
3165 | |
2847 | EV_FREQUENT_CHECK; |
3166 | EV_FREQUENT_CHECK; |
2848 | } |
3167 | } |
… | |
… | |
2857 | EV_FREQUENT_CHECK; |
3176 | EV_FREQUENT_CHECK; |
2858 | |
3177 | |
2859 | #if EV_USE_INOTIFY |
3178 | #if EV_USE_INOTIFY |
2860 | infy_del (EV_A_ w); |
3179 | infy_del (EV_A_ w); |
2861 | #endif |
3180 | #endif |
|
|
3181 | |
|
|
3182 | if (ev_is_active (&w->timer)) |
|
|
3183 | { |
|
|
3184 | ev_ref (EV_A); |
2862 | ev_timer_stop (EV_A_ &w->timer); |
3185 | ev_timer_stop (EV_A_ &w->timer); |
|
|
3186 | } |
2863 | |
3187 | |
2864 | ev_stop (EV_A_ (W)w); |
3188 | ev_stop (EV_A_ (W)w); |
2865 | |
3189 | |
2866 | EV_FREQUENT_CHECK; |
3190 | EV_FREQUENT_CHECK; |
2867 | } |
3191 | } |
… | |
… | |
3008 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3332 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3009 | { |
3333 | { |
3010 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
3334 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
3011 | |
3335 | |
3012 | { |
3336 | { |
3013 | struct ev_loop *loop = w->other; |
3337 | EV_P = w->other; |
3014 | |
3338 | |
3015 | while (fdchangecnt) |
3339 | while (fdchangecnt) |
3016 | { |
3340 | { |
3017 | fd_reify (EV_A); |
3341 | fd_reify (EV_A); |
3018 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3342 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
… | |
… | |
3026 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
3350 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
3027 | |
3351 | |
3028 | ev_embed_stop (EV_A_ w); |
3352 | ev_embed_stop (EV_A_ w); |
3029 | |
3353 | |
3030 | { |
3354 | { |
3031 | struct ev_loop *loop = w->other; |
3355 | EV_P = w->other; |
3032 | |
3356 | |
3033 | ev_loop_fork (EV_A); |
3357 | ev_loop_fork (EV_A); |
3034 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3358 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3035 | } |
3359 | } |
3036 | |
3360 | |
… | |
… | |
3050 | { |
3374 | { |
3051 | if (expect_false (ev_is_active (w))) |
3375 | if (expect_false (ev_is_active (w))) |
3052 | return; |
3376 | return; |
3053 | |
3377 | |
3054 | { |
3378 | { |
3055 | struct ev_loop *loop = w->other; |
3379 | EV_P = w->other; |
3056 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3380 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3057 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3381 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3058 | } |
3382 | } |
3059 | |
3383 | |
3060 | EV_FREQUENT_CHECK; |
3384 | EV_FREQUENT_CHECK; |
… | |
… | |
3172 | |
3496 | |
3173 | void |
3497 | void |
3174 | ev_async_send (EV_P_ ev_async *w) |
3498 | ev_async_send (EV_P_ ev_async *w) |
3175 | { |
3499 | { |
3176 | w->sent = 1; |
3500 | w->sent = 1; |
3177 | evpipe_write (EV_A_ &gotasync); |
3501 | evpipe_write (EV_A_ &async_pending); |
3178 | } |
3502 | } |
3179 | #endif |
3503 | #endif |
3180 | |
3504 | |
3181 | /*****************************************************************************/ |
3505 | /*****************************************************************************/ |
3182 | |
3506 | |
… | |
… | |
3331 | if (types & EV_CHECK) |
3655 | if (types & EV_CHECK) |
3332 | for (i = checkcnt; i--; ) |
3656 | for (i = checkcnt; i--; ) |
3333 | cb (EV_A_ EV_CHECK, checks [i]); |
3657 | cb (EV_A_ EV_CHECK, checks [i]); |
3334 | |
3658 | |
3335 | if (types & EV_SIGNAL) |
3659 | if (types & EV_SIGNAL) |
3336 | for (i = 0; i < signalmax; ++i) |
3660 | for (i = 0; i < EV_NSIG - 1; ++i) |
3337 | for (wl = signals [i].head; wl; ) |
3661 | for (wl = signals [i].head; wl; ) |
3338 | { |
3662 | { |
3339 | wn = wl->next; |
3663 | wn = wl->next; |
3340 | cb (EV_A_ EV_SIGNAL, wl); |
3664 | cb (EV_A_ EV_SIGNAL, wl); |
3341 | wl = wn; |
3665 | wl = wn; |