1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009,2010 Marc Alexander Lehmann <libev@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * tion, are permitted provided that the following conditions are met: |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * |
9 | * |
… | |
… | |
163 | |
163 | |
164 | #include <assert.h> |
164 | #include <assert.h> |
165 | #include <errno.h> |
165 | #include <errno.h> |
166 | #include <sys/types.h> |
166 | #include <sys/types.h> |
167 | #include <time.h> |
167 | #include <time.h> |
|
|
168 | #include <limits.h> |
168 | |
169 | |
169 | #include <signal.h> |
170 | #include <signal.h> |
170 | |
171 | |
171 | #ifdef EV_H |
172 | #ifdef EV_H |
172 | # include EV_H |
173 | # include EV_H |
… | |
… | |
183 | # define WIN32_LEAN_AND_MEAN |
184 | # define WIN32_LEAN_AND_MEAN |
184 | # include <windows.h> |
185 | # include <windows.h> |
185 | # ifndef EV_SELECT_IS_WINSOCKET |
186 | # ifndef EV_SELECT_IS_WINSOCKET |
186 | # define EV_SELECT_IS_WINSOCKET 1 |
187 | # define EV_SELECT_IS_WINSOCKET 1 |
187 | # endif |
188 | # endif |
|
|
189 | # undef EV_AVOID_STDIO |
188 | #endif |
190 | #endif |
189 | |
191 | |
190 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
192 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
191 | |
193 | |
192 | /* try to deduce the maximum number of signals on this platform */ |
194 | /* try to deduce the maximum number of signals on this platform */ |
… | |
… | |
205 | #elif defined (MAXSIG) |
207 | #elif defined (MAXSIG) |
206 | # define EV_NSIG (MAXSIG+1) |
208 | # define EV_NSIG (MAXSIG+1) |
207 | #elif defined (MAX_SIG) |
209 | #elif defined (MAX_SIG) |
208 | # define EV_NSIG (MAX_SIG+1) |
210 | # define EV_NSIG (MAX_SIG+1) |
209 | #elif defined (SIGARRAYSIZE) |
211 | #elif defined (SIGARRAYSIZE) |
210 | # define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */ |
212 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
211 | #elif defined (_sys_nsig) |
213 | #elif defined (_sys_nsig) |
212 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
214 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
213 | #else |
215 | #else |
214 | # error "unable to find value for NSIG, please report" |
216 | # error "unable to find value for NSIG, please report" |
215 | /* to make it compile regardless, just remove the above line */ |
217 | /* to make it compile regardless, just remove the above line, */ |
|
|
218 | /* but consider reporting it, too! :) */ |
216 | # define EV_NSIG 65 |
219 | # define EV_NSIG 65 |
217 | #endif |
220 | #endif |
218 | |
221 | |
219 | #ifndef EV_USE_CLOCK_SYSCALL |
222 | #ifndef EV_USE_CLOCK_SYSCALL |
220 | # if __linux && __GLIBC__ >= 2 |
223 | # if __linux && __GLIBC__ >= 2 |
221 | # define EV_USE_CLOCK_SYSCALL 1 |
224 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
222 | # else |
225 | # else |
223 | # define EV_USE_CLOCK_SYSCALL 0 |
226 | # define EV_USE_CLOCK_SYSCALL 0 |
224 | # endif |
227 | # endif |
225 | #endif |
228 | #endif |
226 | |
229 | |
227 | #ifndef EV_USE_MONOTONIC |
230 | #ifndef EV_USE_MONOTONIC |
228 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
231 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
229 | # define EV_USE_MONOTONIC 1 |
232 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
230 | # else |
233 | # else |
231 | # define EV_USE_MONOTONIC 0 |
234 | # define EV_USE_MONOTONIC 0 |
232 | # endif |
235 | # endif |
233 | #endif |
236 | #endif |
234 | |
237 | |
… | |
… | |
236 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
239 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
237 | #endif |
240 | #endif |
238 | |
241 | |
239 | #ifndef EV_USE_NANOSLEEP |
242 | #ifndef EV_USE_NANOSLEEP |
240 | # if _POSIX_C_SOURCE >= 199309L |
243 | # if _POSIX_C_SOURCE >= 199309L |
241 | # define EV_USE_NANOSLEEP 1 |
244 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
242 | # else |
245 | # else |
243 | # define EV_USE_NANOSLEEP 0 |
246 | # define EV_USE_NANOSLEEP 0 |
244 | # endif |
247 | # endif |
245 | #endif |
248 | #endif |
246 | |
249 | |
247 | #ifndef EV_USE_SELECT |
250 | #ifndef EV_USE_SELECT |
248 | # define EV_USE_SELECT 1 |
251 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
249 | #endif |
252 | #endif |
250 | |
253 | |
251 | #ifndef EV_USE_POLL |
254 | #ifndef EV_USE_POLL |
252 | # ifdef _WIN32 |
255 | # ifdef _WIN32 |
253 | # define EV_USE_POLL 0 |
256 | # define EV_USE_POLL 0 |
254 | # else |
257 | # else |
255 | # define EV_USE_POLL 1 |
258 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
256 | # endif |
259 | # endif |
257 | #endif |
260 | #endif |
258 | |
261 | |
259 | #ifndef EV_USE_EPOLL |
262 | #ifndef EV_USE_EPOLL |
260 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
263 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
261 | # define EV_USE_EPOLL 1 |
264 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
262 | # else |
265 | # else |
263 | # define EV_USE_EPOLL 0 |
266 | # define EV_USE_EPOLL 0 |
264 | # endif |
267 | # endif |
265 | #endif |
268 | #endif |
266 | |
269 | |
… | |
… | |
272 | # define EV_USE_PORT 0 |
275 | # define EV_USE_PORT 0 |
273 | #endif |
276 | #endif |
274 | |
277 | |
275 | #ifndef EV_USE_INOTIFY |
278 | #ifndef EV_USE_INOTIFY |
276 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
279 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
277 | # define EV_USE_INOTIFY 1 |
280 | # define EV_USE_INOTIFY EV_FEATURE_OS |
278 | # else |
281 | # else |
279 | # define EV_USE_INOTIFY 0 |
282 | # define EV_USE_INOTIFY 0 |
280 | # endif |
283 | # endif |
281 | #endif |
284 | #endif |
282 | |
285 | |
283 | #ifndef EV_PID_HASHSIZE |
286 | #ifndef EV_PID_HASHSIZE |
284 | # if EV_MINIMAL |
287 | # define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
285 | # define EV_PID_HASHSIZE 1 |
|
|
286 | # else |
|
|
287 | # define EV_PID_HASHSIZE 16 |
|
|
288 | # endif |
|
|
289 | #endif |
288 | #endif |
290 | |
289 | |
291 | #ifndef EV_INOTIFY_HASHSIZE |
290 | #ifndef EV_INOTIFY_HASHSIZE |
292 | # if EV_MINIMAL |
291 | # define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
293 | # define EV_INOTIFY_HASHSIZE 1 |
|
|
294 | # else |
|
|
295 | # define EV_INOTIFY_HASHSIZE 16 |
|
|
296 | # endif |
|
|
297 | #endif |
292 | #endif |
298 | |
293 | |
299 | #ifndef EV_USE_EVENTFD |
294 | #ifndef EV_USE_EVENTFD |
300 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
295 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
301 | # define EV_USE_EVENTFD 1 |
296 | # define EV_USE_EVENTFD EV_FEATURE_OS |
302 | # else |
297 | # else |
303 | # define EV_USE_EVENTFD 0 |
298 | # define EV_USE_EVENTFD 0 |
304 | # endif |
299 | # endif |
305 | #endif |
300 | #endif |
306 | |
301 | |
307 | #ifndef EV_USE_SIGNALFD |
302 | #ifndef EV_USE_SIGNALFD |
308 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
303 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
309 | # define EV_USE_SIGNALFD 1 |
304 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
310 | # else |
305 | # else |
311 | # define EV_USE_SIGNALFD 0 |
306 | # define EV_USE_SIGNALFD 0 |
312 | # endif |
307 | # endif |
313 | #endif |
308 | #endif |
314 | |
309 | |
… | |
… | |
317 | # define EV_USE_4HEAP 1 |
312 | # define EV_USE_4HEAP 1 |
318 | # define EV_HEAP_CACHE_AT 1 |
313 | # define EV_HEAP_CACHE_AT 1 |
319 | #endif |
314 | #endif |
320 | |
315 | |
321 | #ifndef EV_VERIFY |
316 | #ifndef EV_VERIFY |
322 | # define EV_VERIFY !EV_MINIMAL |
317 | # define EV_VERIFY (EV_FEATURE_API ? 1 : 0) |
323 | #endif |
318 | #endif |
324 | |
319 | |
325 | #ifndef EV_USE_4HEAP |
320 | #ifndef EV_USE_4HEAP |
326 | # define EV_USE_4HEAP !EV_MINIMAL |
321 | # define EV_USE_4HEAP EV_FEATURE_DATA |
327 | #endif |
322 | #endif |
328 | |
323 | |
329 | #ifndef EV_HEAP_CACHE_AT |
324 | #ifndef EV_HEAP_CACHE_AT |
330 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
325 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
331 | #endif |
326 | #endif |
332 | |
327 | |
333 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
328 | /* 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. */ |
329 | /* which makes programs even slower. might work on other unices, too. */ |
335 | #if EV_USE_CLOCK_SYSCALL |
330 | #if EV_USE_CLOCK_SYSCALL |
… | |
… | |
344 | # endif |
339 | # endif |
345 | #endif |
340 | #endif |
346 | |
341 | |
347 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
342 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
348 | |
343 | |
|
|
344 | #ifdef _AIX |
|
|
345 | /* AIX has a completely broken poll.h header */ |
|
|
346 | # undef EV_USE_POLL |
|
|
347 | # define EV_USE_POLL 0 |
|
|
348 | #endif |
|
|
349 | |
349 | #ifndef CLOCK_MONOTONIC |
350 | #ifndef CLOCK_MONOTONIC |
350 | # undef EV_USE_MONOTONIC |
351 | # undef EV_USE_MONOTONIC |
351 | # define EV_USE_MONOTONIC 0 |
352 | # define EV_USE_MONOTONIC 0 |
352 | #endif |
353 | #endif |
353 | |
354 | |
… | |
… | |
396 | # endif |
397 | # endif |
397 | # endif |
398 | # endif |
398 | # ifdef __cplusplus |
399 | # ifdef __cplusplus |
399 | extern "C" { |
400 | extern "C" { |
400 | # endif |
401 | # endif |
401 | int eventfd (unsigned int initval, int flags); |
402 | int (eventfd) (unsigned int initval, int flags); |
402 | # ifdef __cplusplus |
403 | # ifdef __cplusplus |
403 | } |
404 | } |
404 | # endif |
405 | # endif |
405 | #endif |
406 | #endif |
406 | |
407 | |
… | |
… | |
467 | |
468 | |
468 | #define expect_false(expr) expect ((expr) != 0, 0) |
469 | #define expect_false(expr) expect ((expr) != 0, 0) |
469 | #define expect_true(expr) expect ((expr) != 0, 1) |
470 | #define expect_true(expr) expect ((expr) != 0, 1) |
470 | #define inline_size static inline |
471 | #define inline_size static inline |
471 | |
472 | |
472 | #if EV_MINIMAL |
473 | #if EV_FEATURE_CODE |
|
|
474 | # define inline_speed static inline |
|
|
475 | #else |
473 | # define inline_speed static noinline |
476 | # define inline_speed static noinline |
474 | #else |
|
|
475 | # define inline_speed static inline |
|
|
476 | #endif |
477 | #endif |
477 | |
478 | |
478 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
479 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
479 | |
480 | |
480 | #if EV_MINPRI == EV_MAXPRI |
481 | #if EV_MINPRI == EV_MAXPRI |
… | |
… | |
517 | # include "ev_win32.c" |
518 | # include "ev_win32.c" |
518 | #endif |
519 | #endif |
519 | |
520 | |
520 | /*****************************************************************************/ |
521 | /*****************************************************************************/ |
521 | |
522 | |
|
|
523 | #if EV_AVOID_STDIO |
|
|
524 | static void noinline |
|
|
525 | ev_printerr (const char *msg) |
|
|
526 | { |
|
|
527 | write (STDERR_FILENO, msg, strlen (msg)); |
|
|
528 | } |
|
|
529 | #endif |
|
|
530 | |
522 | static void (*syserr_cb)(const char *msg); |
531 | static void (*syserr_cb)(const char *msg); |
523 | |
532 | |
524 | void |
533 | void |
525 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
534 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
526 | { |
535 | { |
… | |
… | |
535 | |
544 | |
536 | if (syserr_cb) |
545 | if (syserr_cb) |
537 | syserr_cb (msg); |
546 | syserr_cb (msg); |
538 | else |
547 | else |
539 | { |
548 | { |
|
|
549 | #if EV_AVOID_STDIO |
|
|
550 | const char *err = strerror (errno); |
|
|
551 | |
|
|
552 | ev_printerr (msg); |
|
|
553 | ev_printerr (": "); |
|
|
554 | ev_printerr (err); |
|
|
555 | ev_printerr ("\n"); |
|
|
556 | #else |
540 | perror (msg); |
557 | perror (msg); |
|
|
558 | #endif |
541 | abort (); |
559 | abort (); |
542 | } |
560 | } |
543 | } |
561 | } |
544 | |
562 | |
545 | static void * |
563 | static void * |
546 | ev_realloc_emul (void *ptr, long size) |
564 | ev_realloc_emul (void *ptr, long size) |
547 | { |
565 | { |
|
|
566 | #if __GLIBC__ |
|
|
567 | return realloc (ptr, size); |
|
|
568 | #else |
548 | /* some systems, notably openbsd and darwin, fail to properly |
569 | /* some systems, notably openbsd and darwin, fail to properly |
549 | * implement realloc (x, 0) (as required by both ansi c-98 and |
570 | * implement realloc (x, 0) (as required by both ansi c-89 and |
550 | * the single unix specification, so work around them here. |
571 | * the single unix specification, so work around them here. |
551 | */ |
572 | */ |
552 | |
573 | |
553 | if (size) |
574 | if (size) |
554 | return realloc (ptr, size); |
575 | return realloc (ptr, size); |
555 | |
576 | |
556 | free (ptr); |
577 | free (ptr); |
557 | return 0; |
578 | return 0; |
|
|
579 | #endif |
558 | } |
580 | } |
559 | |
581 | |
560 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
582 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
561 | |
583 | |
562 | void |
584 | void |
… | |
… | |
570 | { |
592 | { |
571 | ptr = alloc (ptr, size); |
593 | ptr = alloc (ptr, size); |
572 | |
594 | |
573 | if (!ptr && size) |
595 | if (!ptr && size) |
574 | { |
596 | { |
|
|
597 | #if EV_AVOID_STDIO |
|
|
598 | ev_printerr ("libev: memory allocation failed, aborting.\n"); |
|
|
599 | #else |
575 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
600 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
|
|
601 | #endif |
576 | abort (); |
602 | abort (); |
577 | } |
603 | } |
578 | |
604 | |
579 | return ptr; |
605 | return ptr; |
580 | } |
606 | } |
… | |
… | |
662 | |
688 | |
663 | static int ev_default_loop_ptr; |
689 | static int ev_default_loop_ptr; |
664 | |
690 | |
665 | #endif |
691 | #endif |
666 | |
692 | |
667 | #if EV_MINIMAL < 2 |
693 | #if EV_FEATURE_API |
668 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
694 | # 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) |
695 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
670 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
696 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
671 | #else |
697 | #else |
672 | # define EV_RELEASE_CB (void)0 |
698 | # define EV_RELEASE_CB (void)0 |
… | |
… | |
857 | } |
883 | } |
858 | |
884 | |
859 | /*****************************************************************************/ |
885 | /*****************************************************************************/ |
860 | |
886 | |
861 | inline_speed void |
887 | inline_speed void |
862 | fd_event_nc (EV_P_ int fd, int revents) |
888 | fd_event_nocheck (EV_P_ int fd, int revents) |
863 | { |
889 | { |
864 | ANFD *anfd = anfds + fd; |
890 | ANFD *anfd = anfds + fd; |
865 | ev_io *w; |
891 | ev_io *w; |
866 | |
892 | |
867 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
893 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
879 | fd_event (EV_P_ int fd, int revents) |
905 | fd_event (EV_P_ int fd, int revents) |
880 | { |
906 | { |
881 | ANFD *anfd = anfds + fd; |
907 | ANFD *anfd = anfds + fd; |
882 | |
908 | |
883 | if (expect_true (!anfd->reify)) |
909 | if (expect_true (!anfd->reify)) |
884 | fd_event_nc (EV_A_ fd, revents); |
910 | fd_event_nocheck (EV_A_ fd, revents); |
885 | } |
911 | } |
886 | |
912 | |
887 | void |
913 | void |
888 | ev_feed_fd_event (EV_P_ int fd, int revents) |
914 | ev_feed_fd_event (EV_P_ int fd, int revents) |
889 | { |
915 | { |
890 | if (fd >= 0 && fd < anfdmax) |
916 | if (fd >= 0 && fd < anfdmax) |
891 | fd_event_nc (EV_A_ fd, revents); |
917 | fd_event_nocheck (EV_A_ fd, revents); |
892 | } |
918 | } |
893 | |
919 | |
894 | /* make sure the external fd watch events are in-sync */ |
920 | /* make sure the external fd watch events are in-sync */ |
895 | /* with the kernel/libev internal state */ |
921 | /* with the kernel/libev internal state */ |
896 | inline_size void |
922 | inline_size void |
… | |
… | |
959 | ev_io_stop (EV_A_ w); |
985 | ev_io_stop (EV_A_ w); |
960 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
986 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
961 | } |
987 | } |
962 | } |
988 | } |
963 | |
989 | |
964 | /* check whether the given fd is atcually valid, for error recovery */ |
990 | /* check whether the given fd is actually valid, for error recovery */ |
965 | inline_size int |
991 | inline_size int |
966 | fd_valid (int fd) |
992 | fd_valid (int fd) |
967 | { |
993 | { |
968 | #ifdef _WIN32 |
994 | #ifdef _WIN32 |
969 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
995 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
… | |
… | |
1009 | { |
1035 | { |
1010 | anfds [fd].events = 0; |
1036 | anfds [fd].events = 0; |
1011 | anfds [fd].emask = 0; |
1037 | anfds [fd].emask = 0; |
1012 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
1038 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
1013 | } |
1039 | } |
|
|
1040 | } |
|
|
1041 | |
|
|
1042 | /* used to prepare libev internal fd's */ |
|
|
1043 | /* this is not fork-safe */ |
|
|
1044 | inline_speed void |
|
|
1045 | fd_intern (int fd) |
|
|
1046 | { |
|
|
1047 | #ifdef _WIN32 |
|
|
1048 | unsigned long arg = 1; |
|
|
1049 | ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg); |
|
|
1050 | #else |
|
|
1051 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
1052 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
1053 | #endif |
1014 | } |
1054 | } |
1015 | |
1055 | |
1016 | /*****************************************************************************/ |
1056 | /*****************************************************************************/ |
1017 | |
1057 | |
1018 | /* |
1058 | /* |
… | |
… | |
1172 | |
1212 | |
1173 | static ANSIG signals [EV_NSIG - 1]; |
1213 | static ANSIG signals [EV_NSIG - 1]; |
1174 | |
1214 | |
1175 | /*****************************************************************************/ |
1215 | /*****************************************************************************/ |
1176 | |
1216 | |
1177 | /* used to prepare libev internal fd's */ |
1217 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1178 | /* this is not fork-safe */ |
|
|
1179 | inline_speed void |
|
|
1180 | fd_intern (int fd) |
|
|
1181 | { |
|
|
1182 | #ifdef _WIN32 |
|
|
1183 | unsigned long arg = 1; |
|
|
1184 | ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg); |
|
|
1185 | #else |
|
|
1186 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
1187 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
1188 | #endif |
|
|
1189 | } |
|
|
1190 | |
1218 | |
1191 | static void noinline |
1219 | static void noinline |
1192 | evpipe_init (EV_P) |
1220 | evpipe_init (EV_P) |
1193 | { |
1221 | { |
1194 | if (!ev_is_active (&pipe_w)) |
1222 | if (!ev_is_active (&pipe_w)) |
1195 | { |
1223 | { |
1196 | #if EV_USE_EVENTFD |
1224 | # if EV_USE_EVENTFD |
1197 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
1225 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
1198 | if (evfd < 0 && errno == EINVAL) |
1226 | if (evfd < 0 && errno == EINVAL) |
1199 | evfd = eventfd (0, 0); |
1227 | evfd = eventfd (0, 0); |
1200 | |
1228 | |
1201 | if (evfd >= 0) |
1229 | if (evfd >= 0) |
… | |
… | |
1203 | evpipe [0] = -1; |
1231 | evpipe [0] = -1; |
1204 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
1232 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
1205 | ev_io_set (&pipe_w, evfd, EV_READ); |
1233 | ev_io_set (&pipe_w, evfd, EV_READ); |
1206 | } |
1234 | } |
1207 | else |
1235 | else |
1208 | #endif |
1236 | # endif |
1209 | { |
1237 | { |
1210 | while (pipe (evpipe)) |
1238 | while (pipe (evpipe)) |
1211 | ev_syserr ("(libev) error creating signal/async pipe"); |
1239 | ev_syserr ("(libev) error creating signal/async pipe"); |
1212 | |
1240 | |
1213 | fd_intern (evpipe [0]); |
1241 | fd_intern (evpipe [0]); |
… | |
… | |
1224 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1252 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1225 | { |
1253 | { |
1226 | if (!*flag) |
1254 | if (!*flag) |
1227 | { |
1255 | { |
1228 | int old_errno = errno; /* save errno because write might clobber it */ |
1256 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1257 | char dummy; |
1229 | |
1258 | |
1230 | *flag = 1; |
1259 | *flag = 1; |
1231 | |
1260 | |
1232 | #if EV_USE_EVENTFD |
1261 | #if EV_USE_EVENTFD |
1233 | if (evfd >= 0) |
1262 | if (evfd >= 0) |
… | |
… | |
1235 | uint64_t counter = 1; |
1264 | uint64_t counter = 1; |
1236 | write (evfd, &counter, sizeof (uint64_t)); |
1265 | write (evfd, &counter, sizeof (uint64_t)); |
1237 | } |
1266 | } |
1238 | else |
1267 | else |
1239 | #endif |
1268 | #endif |
1240 | write (evpipe [1], &old_errno, 1); |
1269 | write (evpipe [1], &dummy, 1); |
1241 | |
1270 | |
1242 | errno = old_errno; |
1271 | errno = old_errno; |
1243 | } |
1272 | } |
1244 | } |
1273 | } |
1245 | |
1274 | |
… | |
… | |
1346 | break; |
1375 | break; |
1347 | } |
1376 | } |
1348 | } |
1377 | } |
1349 | #endif |
1378 | #endif |
1350 | |
1379 | |
|
|
1380 | #endif |
|
|
1381 | |
1351 | /*****************************************************************************/ |
1382 | /*****************************************************************************/ |
1352 | |
1383 | |
|
|
1384 | #if EV_CHILD_ENABLE |
1353 | static WL childs [EV_PID_HASHSIZE]; |
1385 | static WL childs [EV_PID_HASHSIZE]; |
1354 | |
|
|
1355 | #ifndef _WIN32 |
|
|
1356 | |
1386 | |
1357 | static ev_signal childev; |
1387 | static ev_signal childev; |
1358 | |
1388 | |
1359 | #ifndef WIFCONTINUED |
1389 | #ifndef WIFCONTINUED |
1360 | # define WIFCONTINUED(status) 0 |
1390 | # define WIFCONTINUED(status) 0 |
… | |
… | |
1365 | child_reap (EV_P_ int chain, int pid, int status) |
1395 | child_reap (EV_P_ int chain, int pid, int status) |
1366 | { |
1396 | { |
1367 | ev_child *w; |
1397 | ev_child *w; |
1368 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1398 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1369 | |
1399 | |
1370 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1400 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
1371 | { |
1401 | { |
1372 | if ((w->pid == pid || !w->pid) |
1402 | if ((w->pid == pid || !w->pid) |
1373 | && (!traced || (w->flags & 1))) |
1403 | && (!traced || (w->flags & 1))) |
1374 | { |
1404 | { |
1375 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
1405 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
… | |
… | |
1400 | /* make sure we are called again until all children have been reaped */ |
1430 | /* make sure we are called again until all children have been reaped */ |
1401 | /* we need to do it this way so that the callback gets called before we continue */ |
1431 | /* we need to do it this way so that the callback gets called before we continue */ |
1402 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1432 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1403 | |
1433 | |
1404 | child_reap (EV_A_ pid, pid, status); |
1434 | child_reap (EV_A_ pid, pid, status); |
1405 | if (EV_PID_HASHSIZE > 1) |
1435 | if ((EV_PID_HASHSIZE) > 1) |
1406 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1436 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1407 | } |
1437 | } |
1408 | |
1438 | |
1409 | #endif |
1439 | #endif |
1410 | |
1440 | |
… | |
… | |
1499 | ev_backend (EV_P) |
1529 | ev_backend (EV_P) |
1500 | { |
1530 | { |
1501 | return backend; |
1531 | return backend; |
1502 | } |
1532 | } |
1503 | |
1533 | |
1504 | #if EV_MINIMAL < 2 |
1534 | #if EV_FEATURE_API |
1505 | unsigned int |
1535 | unsigned int |
1506 | ev_loop_count (EV_P) |
1536 | ev_loop_count (EV_P) |
1507 | { |
1537 | { |
1508 | return loop_count; |
1538 | return loop_count; |
1509 | } |
1539 | } |
… | |
… | |
1589 | |
1619 | |
1590 | ev_rt_now = ev_time (); |
1620 | ev_rt_now = ev_time (); |
1591 | mn_now = get_clock (); |
1621 | mn_now = get_clock (); |
1592 | now_floor = mn_now; |
1622 | now_floor = mn_now; |
1593 | rtmn_diff = ev_rt_now - mn_now; |
1623 | rtmn_diff = ev_rt_now - mn_now; |
1594 | #if EV_MINIMAL < 2 |
1624 | #if EV_FEATURE_API |
1595 | invoke_cb = ev_invoke_pending; |
1625 | invoke_cb = ev_invoke_pending; |
1596 | #endif |
1626 | #endif |
1597 | |
1627 | |
1598 | io_blocktime = 0.; |
1628 | io_blocktime = 0.; |
1599 | timeout_blocktime = 0.; |
1629 | timeout_blocktime = 0.; |
… | |
… | |
1629 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1659 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1630 | #endif |
1660 | #endif |
1631 | |
1661 | |
1632 | ev_prepare_init (&pending_w, pendingcb); |
1662 | ev_prepare_init (&pending_w, pendingcb); |
1633 | |
1663 | |
|
|
1664 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1634 | ev_init (&pipe_w, pipecb); |
1665 | ev_init (&pipe_w, pipecb); |
1635 | ev_set_priority (&pipe_w, EV_MAXPRI); |
1666 | ev_set_priority (&pipe_w, EV_MAXPRI); |
|
|
1667 | #endif |
1636 | } |
1668 | } |
1637 | } |
1669 | } |
1638 | |
1670 | |
1639 | /* free up a loop structure */ |
1671 | /* free up a loop structure */ |
1640 | static void noinline |
1672 | static void noinline |
… | |
… | |
1758 | { |
1790 | { |
1759 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1791 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1760 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1792 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1761 | } |
1793 | } |
1762 | |
1794 | |
|
|
1795 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1763 | evpipe_init (EV_A); |
1796 | evpipe_init (EV_A); |
1764 | /* now iterate over everything, in case we missed something */ |
1797 | /* now iterate over everything, in case we missed something */ |
1765 | pipecb (EV_A_ &pipe_w, EV_READ); |
1798 | pipecb (EV_A_ &pipe_w, EV_READ); |
|
|
1799 | #endif |
1766 | } |
1800 | } |
1767 | |
1801 | |
1768 | postfork = 0; |
1802 | postfork = 0; |
1769 | } |
1803 | } |
1770 | |
1804 | |
… | |
… | |
1832 | verify_watcher (EV_A_ ws [cnt]); |
1866 | verify_watcher (EV_A_ ws [cnt]); |
1833 | } |
1867 | } |
1834 | } |
1868 | } |
1835 | #endif |
1869 | #endif |
1836 | |
1870 | |
1837 | #if EV_MINIMAL < 2 |
1871 | #if EV_FEATURE_API |
1838 | void |
1872 | void |
1839 | ev_loop_verify (EV_P) |
1873 | ev_loop_verify (EV_P) |
1840 | { |
1874 | { |
1841 | #if EV_VERIFY |
1875 | #if EV_VERIFY |
1842 | int i; |
1876 | int i; |
… | |
… | |
1883 | #if EV_ASYNC_ENABLE |
1917 | #if EV_ASYNC_ENABLE |
1884 | assert (asyncmax >= asynccnt); |
1918 | assert (asyncmax >= asynccnt); |
1885 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
1919 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
1886 | #endif |
1920 | #endif |
1887 | |
1921 | |
|
|
1922 | #if EV_PREPARE_ENABLE |
1888 | assert (preparemax >= preparecnt); |
1923 | assert (preparemax >= preparecnt); |
1889 | array_verify (EV_A_ (W *)prepares, preparecnt); |
1924 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
1925 | #endif |
1890 | |
1926 | |
|
|
1927 | #if EV_CHECK_ENABLE |
1891 | assert (checkmax >= checkcnt); |
1928 | assert (checkmax >= checkcnt); |
1892 | array_verify (EV_A_ (W *)checks, checkcnt); |
1929 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
1930 | #endif |
1893 | |
1931 | |
1894 | # if 0 |
1932 | # if 0 |
|
|
1933 | #if EV_CHILD_ENABLE |
1895 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1934 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
1896 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
1935 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
|
|
1936 | #endif |
1897 | # endif |
1937 | # endif |
1898 | #endif |
1938 | #endif |
1899 | } |
1939 | } |
1900 | #endif |
1940 | #endif |
1901 | |
1941 | |
… | |
… | |
1917 | |
1957 | |
1918 | loop_init (EV_A_ flags); |
1958 | loop_init (EV_A_ flags); |
1919 | |
1959 | |
1920 | if (ev_backend (EV_A)) |
1960 | if (ev_backend (EV_A)) |
1921 | { |
1961 | { |
1922 | #ifndef _WIN32 |
1962 | #if EV_CHILD_ENABLE |
1923 | ev_signal_init (&childev, childcb, SIGCHLD); |
1963 | ev_signal_init (&childev, childcb, SIGCHLD); |
1924 | ev_set_priority (&childev, EV_MAXPRI); |
1964 | ev_set_priority (&childev, EV_MAXPRI); |
1925 | ev_signal_start (EV_A_ &childev); |
1965 | ev_signal_start (EV_A_ &childev); |
1926 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1966 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1927 | #endif |
1967 | #endif |
… | |
… | |
1940 | EV_P = ev_default_loop_ptr; |
1980 | EV_P = ev_default_loop_ptr; |
1941 | #endif |
1981 | #endif |
1942 | |
1982 | |
1943 | ev_default_loop_ptr = 0; |
1983 | ev_default_loop_ptr = 0; |
1944 | |
1984 | |
1945 | #ifndef _WIN32 |
1985 | #if EV_CHILD_ENABLE |
1946 | ev_ref (EV_A); /* child watcher */ |
1986 | ev_ref (EV_A); /* child watcher */ |
1947 | ev_signal_stop (EV_A_ &childev); |
1987 | ev_signal_stop (EV_A_ &childev); |
1948 | #endif |
1988 | #endif |
1949 | |
1989 | |
1950 | loop_destroy (EV_A); |
1990 | loop_destroy (EV_A); |
… | |
… | |
2157 | ANHE_at_cache (*he); |
2197 | ANHE_at_cache (*he); |
2158 | } |
2198 | } |
2159 | } |
2199 | } |
2160 | |
2200 | |
2161 | /* fetch new monotonic and realtime times from the kernel */ |
2201 | /* fetch new monotonic and realtime times from the kernel */ |
2162 | /* also detetc if there was a timejump, and act accordingly */ |
2202 | /* also detect if there was a timejump, and act accordingly */ |
2163 | inline_speed void |
2203 | inline_speed void |
2164 | time_update (EV_P_ ev_tstamp max_block) |
2204 | time_update (EV_P_ ev_tstamp max_block) |
2165 | { |
2205 | { |
2166 | #if EV_USE_MONOTONIC |
2206 | #if EV_USE_MONOTONIC |
2167 | if (expect_true (have_monotonic)) |
2207 | if (expect_true (have_monotonic)) |
… | |
… | |
2227 | } |
2267 | } |
2228 | |
2268 | |
2229 | void |
2269 | void |
2230 | ev_loop (EV_P_ int flags) |
2270 | ev_loop (EV_P_ int flags) |
2231 | { |
2271 | { |
2232 | #if EV_MINIMAL < 2 |
2272 | #if EV_FEATURE_API |
2233 | ++loop_depth; |
2273 | ++loop_depth; |
2234 | #endif |
2274 | #endif |
2235 | |
2275 | |
2236 | assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); |
2276 | assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); |
2237 | |
2277 | |
… | |
… | |
2262 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2302 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2263 | EV_INVOKE_PENDING; |
2303 | EV_INVOKE_PENDING; |
2264 | } |
2304 | } |
2265 | #endif |
2305 | #endif |
2266 | |
2306 | |
|
|
2307 | #if EV_PREPARE_ENABLE |
2267 | /* queue prepare watchers (and execute them) */ |
2308 | /* queue prepare watchers (and execute them) */ |
2268 | if (expect_false (preparecnt)) |
2309 | if (expect_false (preparecnt)) |
2269 | { |
2310 | { |
2270 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2311 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2271 | EV_INVOKE_PENDING; |
2312 | EV_INVOKE_PENDING; |
2272 | } |
2313 | } |
|
|
2314 | #endif |
2273 | |
2315 | |
2274 | if (expect_false (loop_done)) |
2316 | if (expect_false (loop_done)) |
2275 | break; |
2317 | break; |
2276 | |
2318 | |
2277 | /* we might have forked, so reify kernel state if necessary */ |
2319 | /* we might have forked, so reify kernel state if necessary */ |
… | |
… | |
2328 | waittime -= sleeptime; |
2370 | waittime -= sleeptime; |
2329 | } |
2371 | } |
2330 | } |
2372 | } |
2331 | } |
2373 | } |
2332 | |
2374 | |
2333 | #if EV_MINIMAL < 2 |
2375 | #if EV_FEATURE_API |
2334 | ++loop_count; |
2376 | ++loop_count; |
2335 | #endif |
2377 | #endif |
2336 | assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ |
2378 | assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ |
2337 | backend_poll (EV_A_ waittime); |
2379 | backend_poll (EV_A_ waittime); |
2338 | assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ |
2380 | assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ |
… | |
… | |
2350 | #if EV_IDLE_ENABLE |
2392 | #if EV_IDLE_ENABLE |
2351 | /* queue idle watchers unless other events are pending */ |
2393 | /* queue idle watchers unless other events are pending */ |
2352 | idle_reify (EV_A); |
2394 | idle_reify (EV_A); |
2353 | #endif |
2395 | #endif |
2354 | |
2396 | |
|
|
2397 | #if EV_CHECK_ENABLE |
2355 | /* queue check watchers, to be executed first */ |
2398 | /* queue check watchers, to be executed first */ |
2356 | if (expect_false (checkcnt)) |
2399 | if (expect_false (checkcnt)) |
2357 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2400 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
|
|
2401 | #endif |
2358 | |
2402 | |
2359 | EV_INVOKE_PENDING; |
2403 | EV_INVOKE_PENDING; |
2360 | } |
2404 | } |
2361 | while (expect_true ( |
2405 | while (expect_true ( |
2362 | activecnt |
2406 | activecnt |
… | |
… | |
2365 | )); |
2409 | )); |
2366 | |
2410 | |
2367 | if (loop_done == EVUNLOOP_ONE) |
2411 | if (loop_done == EVUNLOOP_ONE) |
2368 | loop_done = EVUNLOOP_CANCEL; |
2412 | loop_done = EVUNLOOP_CANCEL; |
2369 | |
2413 | |
2370 | #if EV_MINIMAL < 2 |
2414 | #if EV_FEATURE_API |
2371 | --loop_depth; |
2415 | --loop_depth; |
2372 | #endif |
2416 | #endif |
2373 | } |
2417 | } |
2374 | |
2418 | |
2375 | void |
2419 | void |
… | |
… | |
2501 | |
2545 | |
2502 | if (expect_false (ev_is_active (w))) |
2546 | if (expect_false (ev_is_active (w))) |
2503 | return; |
2547 | return; |
2504 | |
2548 | |
2505 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
2549 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
2506 | assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2550 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2507 | |
2551 | |
2508 | EV_FREQUENT_CHECK; |
2552 | EV_FREQUENT_CHECK; |
2509 | |
2553 | |
2510 | ev_start (EV_A_ (W)w, 1); |
2554 | ev_start (EV_A_ (W)w, 1); |
2511 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2555 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
… | |
… | |
2581 | timers [active] = timers [timercnt + HEAP0]; |
2625 | timers [active] = timers [timercnt + HEAP0]; |
2582 | adjustheap (timers, timercnt, active); |
2626 | adjustheap (timers, timercnt, active); |
2583 | } |
2627 | } |
2584 | } |
2628 | } |
2585 | |
2629 | |
2586 | EV_FREQUENT_CHECK; |
|
|
2587 | |
|
|
2588 | ev_at (w) -= mn_now; |
2630 | ev_at (w) -= mn_now; |
2589 | |
2631 | |
2590 | ev_stop (EV_A_ (W)w); |
2632 | ev_stop (EV_A_ (W)w); |
|
|
2633 | |
|
|
2634 | EV_FREQUENT_CHECK; |
2591 | } |
2635 | } |
2592 | |
2636 | |
2593 | void noinline |
2637 | void noinline |
2594 | ev_timer_again (EV_P_ ev_timer *w) |
2638 | ev_timer_again (EV_P_ ev_timer *w) |
2595 | { |
2639 | { |
… | |
… | |
2674 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2718 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2675 | adjustheap (periodics, periodiccnt, active); |
2719 | adjustheap (periodics, periodiccnt, active); |
2676 | } |
2720 | } |
2677 | } |
2721 | } |
2678 | |
2722 | |
2679 | EV_FREQUENT_CHECK; |
|
|
2680 | |
|
|
2681 | ev_stop (EV_A_ (W)w); |
2723 | ev_stop (EV_A_ (W)w); |
|
|
2724 | |
|
|
2725 | EV_FREQUENT_CHECK; |
2682 | } |
2726 | } |
2683 | |
2727 | |
2684 | void noinline |
2728 | void noinline |
2685 | ev_periodic_again (EV_P_ ev_periodic *w) |
2729 | ev_periodic_again (EV_P_ ev_periodic *w) |
2686 | { |
2730 | { |
… | |
… | |
2691 | #endif |
2735 | #endif |
2692 | |
2736 | |
2693 | #ifndef SA_RESTART |
2737 | #ifndef SA_RESTART |
2694 | # define SA_RESTART 0 |
2738 | # define SA_RESTART 0 |
2695 | #endif |
2739 | #endif |
|
|
2740 | |
|
|
2741 | #if EV_SIGNAL_ENABLE |
2696 | |
2742 | |
2697 | void noinline |
2743 | void noinline |
2698 | ev_signal_start (EV_P_ ev_signal *w) |
2744 | ev_signal_start (EV_P_ ev_signal *w) |
2699 | { |
2745 | { |
2700 | if (expect_false (ev_is_active (w))) |
2746 | if (expect_false (ev_is_active (w))) |
… | |
… | |
2807 | } |
2853 | } |
2808 | |
2854 | |
2809 | EV_FREQUENT_CHECK; |
2855 | EV_FREQUENT_CHECK; |
2810 | } |
2856 | } |
2811 | |
2857 | |
|
|
2858 | #endif |
|
|
2859 | |
|
|
2860 | #if EV_CHILD_ENABLE |
|
|
2861 | |
2812 | void |
2862 | void |
2813 | ev_child_start (EV_P_ ev_child *w) |
2863 | ev_child_start (EV_P_ ev_child *w) |
2814 | { |
2864 | { |
2815 | #if EV_MULTIPLICITY |
2865 | #if EV_MULTIPLICITY |
2816 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2866 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
… | |
… | |
2819 | return; |
2869 | return; |
2820 | |
2870 | |
2821 | EV_FREQUENT_CHECK; |
2871 | EV_FREQUENT_CHECK; |
2822 | |
2872 | |
2823 | ev_start (EV_A_ (W)w, 1); |
2873 | ev_start (EV_A_ (W)w, 1); |
2824 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2874 | wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2825 | |
2875 | |
2826 | EV_FREQUENT_CHECK; |
2876 | EV_FREQUENT_CHECK; |
2827 | } |
2877 | } |
2828 | |
2878 | |
2829 | void |
2879 | void |
… | |
… | |
2833 | if (expect_false (!ev_is_active (w))) |
2883 | if (expect_false (!ev_is_active (w))) |
2834 | return; |
2884 | return; |
2835 | |
2885 | |
2836 | EV_FREQUENT_CHECK; |
2886 | EV_FREQUENT_CHECK; |
2837 | |
2887 | |
2838 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2888 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2839 | ev_stop (EV_A_ (W)w); |
2889 | ev_stop (EV_A_ (W)w); |
2840 | |
2890 | |
2841 | EV_FREQUENT_CHECK; |
2891 | EV_FREQUENT_CHECK; |
2842 | } |
2892 | } |
|
|
2893 | |
|
|
2894 | #endif |
2843 | |
2895 | |
2844 | #if EV_STAT_ENABLE |
2896 | #if EV_STAT_ENABLE |
2845 | |
2897 | |
2846 | # ifdef _WIN32 |
2898 | # ifdef _WIN32 |
2847 | # undef lstat |
2899 | # undef lstat |
… | |
… | |
2853 | #define MIN_STAT_INTERVAL 0.1074891 |
2905 | #define MIN_STAT_INTERVAL 0.1074891 |
2854 | |
2906 | |
2855 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2907 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2856 | |
2908 | |
2857 | #if EV_USE_INOTIFY |
2909 | #if EV_USE_INOTIFY |
2858 | # define EV_INOTIFY_BUFSIZE 8192 |
2910 | |
|
|
2911 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
|
|
2912 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
2859 | |
2913 | |
2860 | static void noinline |
2914 | static void noinline |
2861 | infy_add (EV_P_ ev_stat *w) |
2915 | infy_add (EV_P_ ev_stat *w) |
2862 | { |
2916 | { |
2863 | 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); |
2917 | 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); |
… | |
… | |
2912 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2966 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2913 | } |
2967 | } |
2914 | } |
2968 | } |
2915 | |
2969 | |
2916 | if (w->wd >= 0) |
2970 | if (w->wd >= 0) |
2917 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2971 | wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2918 | |
2972 | |
2919 | /* now re-arm timer, if required */ |
2973 | /* now re-arm timer, if required */ |
2920 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2974 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2921 | ev_timer_again (EV_A_ &w->timer); |
2975 | ev_timer_again (EV_A_ &w->timer); |
2922 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
2976 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
… | |
… | |
2930 | |
2984 | |
2931 | if (wd < 0) |
2985 | if (wd < 0) |
2932 | return; |
2986 | return; |
2933 | |
2987 | |
2934 | w->wd = -2; |
2988 | w->wd = -2; |
2935 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
2989 | slot = wd & ((EV_INOTIFY_HASHSIZE) - 1); |
2936 | wlist_del (&fs_hash [slot].head, (WL)w); |
2990 | wlist_del (&fs_hash [slot].head, (WL)w); |
2937 | |
2991 | |
2938 | /* remove this watcher, if others are watching it, they will rearm */ |
2992 | /* remove this watcher, if others are watching it, they will rearm */ |
2939 | inotify_rm_watch (fs_fd, wd); |
2993 | inotify_rm_watch (fs_fd, wd); |
2940 | } |
2994 | } |
… | |
… | |
2942 | static void noinline |
2996 | static void noinline |
2943 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2997 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2944 | { |
2998 | { |
2945 | if (slot < 0) |
2999 | if (slot < 0) |
2946 | /* overflow, need to check for all hash slots */ |
3000 | /* overflow, need to check for all hash slots */ |
2947 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3001 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2948 | infy_wd (EV_A_ slot, wd, ev); |
3002 | infy_wd (EV_A_ slot, wd, ev); |
2949 | else |
3003 | else |
2950 | { |
3004 | { |
2951 | WL w_; |
3005 | WL w_; |
2952 | |
3006 | |
2953 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
3007 | for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; ) |
2954 | { |
3008 | { |
2955 | ev_stat *w = (ev_stat *)w_; |
3009 | ev_stat *w = (ev_stat *)w_; |
2956 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
3010 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
2957 | |
3011 | |
2958 | if (w->wd == wd || wd == -1) |
3012 | if (w->wd == wd || wd == -1) |
2959 | { |
3013 | { |
2960 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
3014 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2961 | { |
3015 | { |
2962 | wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
3016 | wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2963 | w->wd = -1; |
3017 | w->wd = -1; |
2964 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3018 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2965 | } |
3019 | } |
2966 | |
3020 | |
2967 | stat_timer_cb (EV_A_ &w->timer, 0); |
3021 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2972 | |
3026 | |
2973 | static void |
3027 | static void |
2974 | infy_cb (EV_P_ ev_io *w, int revents) |
3028 | infy_cb (EV_P_ ev_io *w, int revents) |
2975 | { |
3029 | { |
2976 | char buf [EV_INOTIFY_BUFSIZE]; |
3030 | char buf [EV_INOTIFY_BUFSIZE]; |
2977 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2978 | int ofs; |
3031 | int ofs; |
2979 | int len = read (fs_fd, buf, sizeof (buf)); |
3032 | int len = read (fs_fd, buf, sizeof (buf)); |
2980 | |
3033 | |
2981 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
3034 | for (ofs = 0; ofs < len; ) |
|
|
3035 | { |
|
|
3036 | struct inotify_event *ev = (struct inotify_event *)(buf + ofs); |
2982 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3037 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
3038 | ofs += sizeof (struct inotify_event) + ev->len; |
|
|
3039 | } |
|
|
3040 | } |
|
|
3041 | |
|
|
3042 | inline_size unsigned int |
|
|
3043 | ev_linux_version (void) |
|
|
3044 | { |
|
|
3045 | struct utsname buf; |
|
|
3046 | unsigned int v; |
|
|
3047 | int i; |
|
|
3048 | char *p = buf.release; |
|
|
3049 | |
|
|
3050 | if (uname (&buf)) |
|
|
3051 | return 0; |
|
|
3052 | |
|
|
3053 | for (i = 3+1; --i; ) |
|
|
3054 | { |
|
|
3055 | unsigned int c = 0; |
|
|
3056 | |
|
|
3057 | for (;;) |
|
|
3058 | { |
|
|
3059 | if (*p >= '0' && *p <= '9') |
|
|
3060 | c = c * 10 + *p++ - '0'; |
|
|
3061 | else |
|
|
3062 | { |
|
|
3063 | p += *p == '.'; |
|
|
3064 | break; |
|
|
3065 | } |
|
|
3066 | } |
|
|
3067 | |
|
|
3068 | v = (v << 8) | c; |
|
|
3069 | } |
|
|
3070 | |
|
|
3071 | return v; |
2983 | } |
3072 | } |
2984 | |
3073 | |
2985 | inline_size void |
3074 | inline_size void |
2986 | check_2625 (EV_P) |
3075 | ev_check_2625 (EV_P) |
2987 | { |
3076 | { |
2988 | /* kernels < 2.6.25 are borked |
3077 | /* kernels < 2.6.25 are borked |
2989 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
3078 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
2990 | */ |
3079 | */ |
2991 | struct utsname buf; |
3080 | if (ev_linux_version () < 0x020619) |
2992 | int major, minor, micro; |
|
|
2993 | |
|
|
2994 | if (uname (&buf)) |
|
|
2995 | return; |
|
|
2996 | |
|
|
2997 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
|
|
2998 | return; |
|
|
2999 | |
|
|
3000 | if (major < 2 |
|
|
3001 | || (major == 2 && minor < 6) |
|
|
3002 | || (major == 2 && minor == 6 && micro < 25)) |
|
|
3003 | return; |
3081 | return; |
3004 | |
3082 | |
3005 | fs_2625 = 1; |
3083 | fs_2625 = 1; |
3006 | } |
3084 | } |
3007 | |
3085 | |
… | |
… | |
3022 | if (fs_fd != -2) |
3100 | if (fs_fd != -2) |
3023 | return; |
3101 | return; |
3024 | |
3102 | |
3025 | fs_fd = -1; |
3103 | fs_fd = -1; |
3026 | |
3104 | |
3027 | check_2625 (EV_A); |
3105 | ev_check_2625 (EV_A); |
3028 | |
3106 | |
3029 | fs_fd = infy_newfd (); |
3107 | fs_fd = infy_newfd (); |
3030 | |
3108 | |
3031 | if (fs_fd >= 0) |
3109 | if (fs_fd >= 0) |
3032 | { |
3110 | { |
… | |
… | |
3057 | ev_io_set (&fs_w, fs_fd, EV_READ); |
3135 | ev_io_set (&fs_w, fs_fd, EV_READ); |
3058 | ev_io_start (EV_A_ &fs_w); |
3136 | ev_io_start (EV_A_ &fs_w); |
3059 | ev_unref (EV_A); |
3137 | ev_unref (EV_A); |
3060 | } |
3138 | } |
3061 | |
3139 | |
3062 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3140 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
3063 | { |
3141 | { |
3064 | WL w_ = fs_hash [slot].head; |
3142 | WL w_ = fs_hash [slot].head; |
3065 | fs_hash [slot].head = 0; |
3143 | fs_hash [slot].head = 0; |
3066 | |
3144 | |
3067 | while (w_) |
3145 | while (w_) |
… | |
… | |
3242 | |
3320 | |
3243 | EV_FREQUENT_CHECK; |
3321 | EV_FREQUENT_CHECK; |
3244 | } |
3322 | } |
3245 | #endif |
3323 | #endif |
3246 | |
3324 | |
|
|
3325 | #if EV_PREPARE_ENABLE |
3247 | void |
3326 | void |
3248 | ev_prepare_start (EV_P_ ev_prepare *w) |
3327 | ev_prepare_start (EV_P_ ev_prepare *w) |
3249 | { |
3328 | { |
3250 | if (expect_false (ev_is_active (w))) |
3329 | if (expect_false (ev_is_active (w))) |
3251 | return; |
3330 | return; |
… | |
… | |
3277 | |
3356 | |
3278 | ev_stop (EV_A_ (W)w); |
3357 | ev_stop (EV_A_ (W)w); |
3279 | |
3358 | |
3280 | EV_FREQUENT_CHECK; |
3359 | EV_FREQUENT_CHECK; |
3281 | } |
3360 | } |
|
|
3361 | #endif |
3282 | |
3362 | |
|
|
3363 | #if EV_CHECK_ENABLE |
3283 | void |
3364 | void |
3284 | ev_check_start (EV_P_ ev_check *w) |
3365 | ev_check_start (EV_P_ ev_check *w) |
3285 | { |
3366 | { |
3286 | if (expect_false (ev_is_active (w))) |
3367 | if (expect_false (ev_is_active (w))) |
3287 | return; |
3368 | return; |
… | |
… | |
3313 | |
3394 | |
3314 | ev_stop (EV_A_ (W)w); |
3395 | ev_stop (EV_A_ (W)w); |
3315 | |
3396 | |
3316 | EV_FREQUENT_CHECK; |
3397 | EV_FREQUENT_CHECK; |
3317 | } |
3398 | } |
|
|
3399 | #endif |
3318 | |
3400 | |
3319 | #if EV_EMBED_ENABLE |
3401 | #if EV_EMBED_ENABLE |
3320 | void noinline |
3402 | void noinline |
3321 | ev_embed_sweep (EV_P_ ev_embed *w) |
3403 | ev_embed_sweep (EV_P_ ev_embed *w) |
3322 | { |
3404 | { |
… | |
… | |
3416 | EV_FREQUENT_CHECK; |
3498 | EV_FREQUENT_CHECK; |
3417 | |
3499 | |
3418 | ev_io_stop (EV_A_ &w->io); |
3500 | ev_io_stop (EV_A_ &w->io); |
3419 | ev_prepare_stop (EV_A_ &w->prepare); |
3501 | ev_prepare_stop (EV_A_ &w->prepare); |
3420 | ev_fork_stop (EV_A_ &w->fork); |
3502 | ev_fork_stop (EV_A_ &w->fork); |
|
|
3503 | |
|
|
3504 | ev_stop (EV_A_ (W)w); |
3421 | |
3505 | |
3422 | EV_FREQUENT_CHECK; |
3506 | EV_FREQUENT_CHECK; |
3423 | } |
3507 | } |
3424 | #endif |
3508 | #endif |
3425 | |
3509 | |
… | |
… | |
3649 | if (types & EV_ASYNC) |
3733 | if (types & EV_ASYNC) |
3650 | for (i = asynccnt; i--; ) |
3734 | for (i = asynccnt; i--; ) |
3651 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
3735 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
3652 | #endif |
3736 | #endif |
3653 | |
3737 | |
|
|
3738 | #if EV_PREPARE_ENABLE |
3654 | if (types & EV_PREPARE) |
3739 | if (types & EV_PREPARE) |
3655 | for (i = preparecnt; i--; ) |
3740 | for (i = preparecnt; i--; ) |
3656 | #if EV_EMBED_ENABLE |
3741 | # if EV_EMBED_ENABLE |
3657 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
3742 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
3658 | #endif |
3743 | # endif |
3659 | cb (EV_A_ EV_PREPARE, prepares [i]); |
3744 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
3745 | #endif |
3660 | |
3746 | |
|
|
3747 | #if EV_CHECK_ENABLE |
3661 | if (types & EV_CHECK) |
3748 | if (types & EV_CHECK) |
3662 | for (i = checkcnt; i--; ) |
3749 | for (i = checkcnt; i--; ) |
3663 | cb (EV_A_ EV_CHECK, checks [i]); |
3750 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
3751 | #endif |
3664 | |
3752 | |
|
|
3753 | #if EV_SIGNAL_ENABLE |
3665 | if (types & EV_SIGNAL) |
3754 | if (types & EV_SIGNAL) |
3666 | for (i = 0; i < EV_NSIG - 1; ++i) |
3755 | for (i = 0; i < EV_NSIG - 1; ++i) |
3667 | for (wl = signals [i].head; wl; ) |
3756 | for (wl = signals [i].head; wl; ) |
3668 | { |
3757 | { |
3669 | wn = wl->next; |
3758 | wn = wl->next; |
3670 | cb (EV_A_ EV_SIGNAL, wl); |
3759 | cb (EV_A_ EV_SIGNAL, wl); |
3671 | wl = wn; |
3760 | wl = wn; |
3672 | } |
3761 | } |
|
|
3762 | #endif |
3673 | |
3763 | |
|
|
3764 | #if EV_CHILD_ENABLE |
3674 | if (types & EV_CHILD) |
3765 | if (types & EV_CHILD) |
3675 | for (i = EV_PID_HASHSIZE; i--; ) |
3766 | for (i = (EV_PID_HASHSIZE); i--; ) |
3676 | for (wl = childs [i]; wl; ) |
3767 | for (wl = childs [i]; wl; ) |
3677 | { |
3768 | { |
3678 | wn = wl->next; |
3769 | wn = wl->next; |
3679 | cb (EV_A_ EV_CHILD, wl); |
3770 | cb (EV_A_ EV_CHILD, wl); |
3680 | wl = wn; |
3771 | wl = wn; |
3681 | } |
3772 | } |
|
|
3773 | #endif |
3682 | /* EV_STAT 0x00001000 /* stat data changed */ |
3774 | /* EV_STAT 0x00001000 /* stat data changed */ |
3683 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
3775 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
3684 | } |
3776 | } |
3685 | #endif |
3777 | #endif |
3686 | |
3778 | |