1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009 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 | * |
… | |
… | |
47 | # include EV_CONFIG_H |
47 | # include EV_CONFIG_H |
48 | # else |
48 | # else |
49 | # include "config.h" |
49 | # include "config.h" |
50 | # endif |
50 | # endif |
51 | |
51 | |
|
|
52 | # if HAVE_CLOCK_SYSCALL |
|
|
53 | # ifndef EV_USE_CLOCK_SYSCALL |
|
|
54 | # define EV_USE_CLOCK_SYSCALL 1 |
|
|
55 | # ifndef EV_USE_REALTIME |
|
|
56 | # define EV_USE_REALTIME 0 |
|
|
57 | # endif |
|
|
58 | # ifndef EV_USE_MONOTONIC |
|
|
59 | # define EV_USE_MONOTONIC 1 |
|
|
60 | # endif |
|
|
61 | # endif |
|
|
62 | # endif |
|
|
63 | |
52 | # if HAVE_CLOCK_GETTIME |
64 | # if HAVE_CLOCK_GETTIME |
53 | # ifndef EV_USE_MONOTONIC |
65 | # ifndef EV_USE_MONOTONIC |
54 | # define EV_USE_MONOTONIC 1 |
66 | # define EV_USE_MONOTONIC 1 |
55 | # endif |
67 | # endif |
56 | # ifndef EV_USE_REALTIME |
68 | # ifndef EV_USE_REALTIME |
57 | # define EV_USE_REALTIME 1 |
69 | # define EV_USE_REALTIME 0 |
58 | # endif |
70 | # endif |
59 | # else |
71 | # else |
60 | # ifndef EV_USE_MONOTONIC |
72 | # ifndef EV_USE_MONOTONIC |
61 | # define EV_USE_MONOTONIC 0 |
73 | # define EV_USE_MONOTONIC 0 |
62 | # endif |
74 | # endif |
… | |
… | |
154 | #ifndef _WIN32 |
166 | #ifndef _WIN32 |
155 | # include <sys/time.h> |
167 | # include <sys/time.h> |
156 | # include <sys/wait.h> |
168 | # include <sys/wait.h> |
157 | # include <unistd.h> |
169 | # include <unistd.h> |
158 | #else |
170 | #else |
|
|
171 | # include <io.h> |
159 | # define WIN32_LEAN_AND_MEAN |
172 | # define WIN32_LEAN_AND_MEAN |
160 | # include <windows.h> |
173 | # include <windows.h> |
161 | # ifndef EV_SELECT_IS_WINSOCKET |
174 | # ifndef EV_SELECT_IS_WINSOCKET |
162 | # define EV_SELECT_IS_WINSOCKET 1 |
175 | # define EV_SELECT_IS_WINSOCKET 1 |
163 | # endif |
176 | # endif |
164 | #endif |
177 | #endif |
165 | |
178 | |
166 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
179 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
167 | |
180 | |
|
|
181 | #ifndef EV_USE_CLOCK_SYSCALL |
|
|
182 | # if __linux && __GLIBC__ >= 2 |
|
|
183 | # define EV_USE_CLOCK_SYSCALL 1 |
|
|
184 | # else |
|
|
185 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
186 | # endif |
|
|
187 | #endif |
|
|
188 | |
168 | #ifndef EV_USE_MONOTONIC |
189 | #ifndef EV_USE_MONOTONIC |
|
|
190 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
|
|
191 | # define EV_USE_MONOTONIC 1 |
|
|
192 | # else |
169 | # define EV_USE_MONOTONIC 0 |
193 | # define EV_USE_MONOTONIC 0 |
|
|
194 | # endif |
170 | #endif |
195 | #endif |
171 | |
196 | |
172 | #ifndef EV_USE_REALTIME |
197 | #ifndef EV_USE_REALTIME |
173 | # define EV_USE_REALTIME 0 |
198 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
174 | #endif |
199 | #endif |
175 | |
200 | |
176 | #ifndef EV_USE_NANOSLEEP |
201 | #ifndef EV_USE_NANOSLEEP |
|
|
202 | # if _POSIX_C_SOURCE >= 199309L |
|
|
203 | # define EV_USE_NANOSLEEP 1 |
|
|
204 | # else |
177 | # define EV_USE_NANOSLEEP 0 |
205 | # define EV_USE_NANOSLEEP 0 |
|
|
206 | # endif |
178 | #endif |
207 | #endif |
179 | |
208 | |
180 | #ifndef EV_USE_SELECT |
209 | #ifndef EV_USE_SELECT |
181 | # define EV_USE_SELECT 1 |
210 | # define EV_USE_SELECT 1 |
182 | #endif |
211 | #endif |
… | |
… | |
277 | # include <sys/select.h> |
306 | # include <sys/select.h> |
278 | # endif |
307 | # endif |
279 | #endif |
308 | #endif |
280 | |
309 | |
281 | #if EV_USE_INOTIFY |
310 | #if EV_USE_INOTIFY |
|
|
311 | # include <sys/utsname.h> |
|
|
312 | # include <sys/statfs.h> |
282 | # include <sys/inotify.h> |
313 | # include <sys/inotify.h> |
|
|
314 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
|
|
315 | # ifndef IN_DONT_FOLLOW |
|
|
316 | # undef EV_USE_INOTIFY |
|
|
317 | # define EV_USE_INOTIFY 0 |
|
|
318 | # endif |
283 | #endif |
319 | #endif |
284 | |
320 | |
285 | #if EV_SELECT_IS_WINSOCKET |
321 | #if EV_SELECT_IS_WINSOCKET |
286 | # include <winsock.h> |
322 | # include <winsock.h> |
|
|
323 | #endif |
|
|
324 | |
|
|
325 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
|
|
326 | /* which makes programs even slower. might work on other unices, too. */ |
|
|
327 | #if EV_USE_CLOCK_SYSCALL |
|
|
328 | # include <syscall.h> |
|
|
329 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
|
|
330 | # undef EV_USE_MONOTONIC |
|
|
331 | # define EV_USE_MONOTONIC 1 |
287 | #endif |
332 | #endif |
288 | |
333 | |
289 | #if EV_USE_EVENTFD |
334 | #if EV_USE_EVENTFD |
290 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
335 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
291 | # include <stdint.h> |
336 | # include <stdint.h> |
… | |
… | |
352 | typedef ev_watcher_time *WT; |
397 | typedef ev_watcher_time *WT; |
353 | |
398 | |
354 | #define ev_active(w) ((W)(w))->active |
399 | #define ev_active(w) ((W)(w))->active |
355 | #define ev_at(w) ((WT)(w))->at |
400 | #define ev_at(w) ((WT)(w))->at |
356 | |
401 | |
357 | #if EV_USE_MONOTONIC |
402 | #if EV_USE_REALTIME |
358 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
403 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
359 | /* giving it a reasonably high chance of working on typical architetcures */ |
404 | /* giving it a reasonably high chance of working on typical architetcures */ |
|
|
405 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
|
|
406 | #endif |
|
|
407 | |
|
|
408 | #if EV_USE_MONOTONIC |
360 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
409 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
361 | #endif |
410 | #endif |
362 | |
411 | |
363 | #ifdef _WIN32 |
412 | #ifdef _WIN32 |
364 | # include "ev_win32.c" |
413 | # include "ev_win32.c" |
… | |
… | |
373 | { |
422 | { |
374 | syserr_cb = cb; |
423 | syserr_cb = cb; |
375 | } |
424 | } |
376 | |
425 | |
377 | static void noinline |
426 | static void noinline |
378 | syserr (const char *msg) |
427 | ev_syserr (const char *msg) |
379 | { |
428 | { |
380 | if (!msg) |
429 | if (!msg) |
381 | msg = "(libev) system error"; |
430 | msg = "(libev) system error"; |
382 | |
431 | |
383 | if (syserr_cb) |
432 | if (syserr_cb) |
… | |
… | |
434 | typedef struct |
483 | typedef struct |
435 | { |
484 | { |
436 | WL head; |
485 | WL head; |
437 | unsigned char events; |
486 | unsigned char events; |
438 | unsigned char reify; |
487 | unsigned char reify; |
|
|
488 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
|
|
489 | unsigned char unused; |
|
|
490 | #if EV_USE_EPOLL |
|
|
491 | unsigned int egen; /* generation counter to counter epoll bugs */ |
|
|
492 | #endif |
439 | #if EV_SELECT_IS_WINSOCKET |
493 | #if EV_SELECT_IS_WINSOCKET |
440 | SOCKET handle; |
494 | SOCKET handle; |
441 | #endif |
495 | #endif |
442 | } ANFD; |
496 | } ANFD; |
443 | |
497 | |
… | |
… | |
503 | |
557 | |
504 | ev_tstamp |
558 | ev_tstamp |
505 | ev_time (void) |
559 | ev_time (void) |
506 | { |
560 | { |
507 | #if EV_USE_REALTIME |
561 | #if EV_USE_REALTIME |
|
|
562 | if (expect_true (have_realtime)) |
|
|
563 | { |
508 | struct timespec ts; |
564 | struct timespec ts; |
509 | clock_gettime (CLOCK_REALTIME, &ts); |
565 | clock_gettime (CLOCK_REALTIME, &ts); |
510 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
566 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
511 | #else |
567 | } |
|
|
568 | #endif |
|
|
569 | |
512 | struct timeval tv; |
570 | struct timeval tv; |
513 | gettimeofday (&tv, 0); |
571 | gettimeofday (&tv, 0); |
514 | return tv.tv_sec + tv.tv_usec * 1e-6; |
572 | return tv.tv_sec + tv.tv_usec * 1e-6; |
515 | #endif |
|
|
516 | } |
573 | } |
517 | |
574 | |
518 | ev_tstamp inline_size |
575 | ev_tstamp inline_size |
519 | get_clock (void) |
576 | get_clock (void) |
520 | { |
577 | { |
… | |
… | |
556 | struct timeval tv; |
613 | struct timeval tv; |
557 | |
614 | |
558 | tv.tv_sec = (time_t)delay; |
615 | tv.tv_sec = (time_t)delay; |
559 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
616 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
560 | |
617 | |
|
|
618 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
|
|
619 | /* somehting nto guaranteed by newer posix versions, but guaranteed */ |
|
|
620 | /* by older ones */ |
561 | select (0, 0, 0, 0, &tv); |
621 | select (0, 0, 0, 0, &tv); |
562 | #endif |
622 | #endif |
563 | } |
623 | } |
564 | } |
624 | } |
565 | |
625 | |
… | |
… | |
592 | array_realloc (int elem, void *base, int *cur, int cnt) |
652 | array_realloc (int elem, void *base, int *cur, int cnt) |
593 | { |
653 | { |
594 | *cur = array_nextsize (elem, *cur, cnt); |
654 | *cur = array_nextsize (elem, *cur, cnt); |
595 | return ev_realloc (base, elem * *cur); |
655 | return ev_realloc (base, elem * *cur); |
596 | } |
656 | } |
|
|
657 | |
|
|
658 | #define array_init_zero(base,count) \ |
|
|
659 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
597 | |
660 | |
598 | #define array_needsize(type,base,cur,cnt,init) \ |
661 | #define array_needsize(type,base,cur,cnt,init) \ |
599 | if (expect_false ((cnt) > (cur))) \ |
662 | if (expect_false ((cnt) > (cur))) \ |
600 | { \ |
663 | { \ |
601 | int ocur_ = (cur); \ |
664 | int ocur_ = (cur); \ |
… | |
… | |
645 | ev_feed_event (EV_A_ events [i], type); |
708 | ev_feed_event (EV_A_ events [i], type); |
646 | } |
709 | } |
647 | |
710 | |
648 | /*****************************************************************************/ |
711 | /*****************************************************************************/ |
649 | |
712 | |
650 | void inline_size |
|
|
651 | anfds_init (ANFD *base, int count) |
|
|
652 | { |
|
|
653 | while (count--) |
|
|
654 | { |
|
|
655 | base->head = 0; |
|
|
656 | base->events = EV_NONE; |
|
|
657 | base->reify = 0; |
|
|
658 | |
|
|
659 | ++base; |
|
|
660 | } |
|
|
661 | } |
|
|
662 | |
|
|
663 | void inline_speed |
713 | void inline_speed |
664 | fd_event (EV_P_ int fd, int revents) |
714 | fd_event (EV_P_ int fd, int revents) |
665 | { |
715 | { |
666 | ANFD *anfd = anfds + fd; |
716 | ANFD *anfd = anfds + fd; |
667 | ev_io *w; |
717 | ev_io *w; |
… | |
… | |
699 | events |= (unsigned char)w->events; |
749 | events |= (unsigned char)w->events; |
700 | |
750 | |
701 | #if EV_SELECT_IS_WINSOCKET |
751 | #if EV_SELECT_IS_WINSOCKET |
702 | if (events) |
752 | if (events) |
703 | { |
753 | { |
704 | unsigned long argp; |
754 | unsigned long arg; |
705 | #ifdef EV_FD_TO_WIN32_HANDLE |
755 | #ifdef EV_FD_TO_WIN32_HANDLE |
706 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
756 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
707 | #else |
757 | #else |
708 | anfd->handle = _get_osfhandle (fd); |
758 | anfd->handle = _get_osfhandle (fd); |
709 | #endif |
759 | #endif |
710 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
760 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
711 | } |
761 | } |
712 | #endif |
762 | #endif |
713 | |
763 | |
714 | { |
764 | { |
715 | unsigned char o_events = anfd->events; |
765 | unsigned char o_events = anfd->events; |
… | |
… | |
768 | { |
818 | { |
769 | int fd; |
819 | int fd; |
770 | |
820 | |
771 | for (fd = 0; fd < anfdmax; ++fd) |
821 | for (fd = 0; fd < anfdmax; ++fd) |
772 | if (anfds [fd].events) |
822 | if (anfds [fd].events) |
773 | if (!fd_valid (fd) == -1 && errno == EBADF) |
823 | if (!fd_valid (fd) && errno == EBADF) |
774 | fd_kill (EV_A_ fd); |
824 | fd_kill (EV_A_ fd); |
775 | } |
825 | } |
776 | |
826 | |
777 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
827 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
778 | static void noinline |
828 | static void noinline |
… | |
… | |
796 | |
846 | |
797 | for (fd = 0; fd < anfdmax; ++fd) |
847 | for (fd = 0; fd < anfdmax; ++fd) |
798 | if (anfds [fd].events) |
848 | if (anfds [fd].events) |
799 | { |
849 | { |
800 | anfds [fd].events = 0; |
850 | anfds [fd].events = 0; |
|
|
851 | anfds [fd].emask = 0; |
801 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
852 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
802 | } |
853 | } |
803 | } |
854 | } |
804 | |
855 | |
805 | /*****************************************************************************/ |
856 | /*****************************************************************************/ |
… | |
… | |
957 | static ANSIG *signals; |
1008 | static ANSIG *signals; |
958 | static int signalmax; |
1009 | static int signalmax; |
959 | |
1010 | |
960 | static EV_ATOMIC_T gotsig; |
1011 | static EV_ATOMIC_T gotsig; |
961 | |
1012 | |
962 | void inline_size |
|
|
963 | signals_init (ANSIG *base, int count) |
|
|
964 | { |
|
|
965 | while (count--) |
|
|
966 | { |
|
|
967 | base->head = 0; |
|
|
968 | base->gotsig = 0; |
|
|
969 | |
|
|
970 | ++base; |
|
|
971 | } |
|
|
972 | } |
|
|
973 | |
|
|
974 | /*****************************************************************************/ |
1013 | /*****************************************************************************/ |
975 | |
1014 | |
976 | void inline_speed |
1015 | void inline_speed |
977 | fd_intern (int fd) |
1016 | fd_intern (int fd) |
978 | { |
1017 | { |
979 | #ifdef _WIN32 |
1018 | #ifdef _WIN32 |
980 | int arg = 1; |
1019 | unsigned long arg = 1; |
981 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
1020 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
982 | #else |
1021 | #else |
983 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
1022 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
984 | fcntl (fd, F_SETFL, O_NONBLOCK); |
1023 | fcntl (fd, F_SETFL, O_NONBLOCK); |
985 | #endif |
1024 | #endif |
… | |
… | |
999 | } |
1038 | } |
1000 | else |
1039 | else |
1001 | #endif |
1040 | #endif |
1002 | { |
1041 | { |
1003 | while (pipe (evpipe)) |
1042 | while (pipe (evpipe)) |
1004 | syserr ("(libev) error creating signal/async pipe"); |
1043 | ev_syserr ("(libev) error creating signal/async pipe"); |
1005 | |
1044 | |
1006 | fd_intern (evpipe [0]); |
1045 | fd_intern (evpipe [0]); |
1007 | fd_intern (evpipe [1]); |
1046 | fd_intern (evpipe [1]); |
1008 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
1047 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
1009 | } |
1048 | } |
… | |
… | |
1099 | ev_feed_signal_event (EV_P_ int signum) |
1138 | ev_feed_signal_event (EV_P_ int signum) |
1100 | { |
1139 | { |
1101 | WL w; |
1140 | WL w; |
1102 | |
1141 | |
1103 | #if EV_MULTIPLICITY |
1142 | #if EV_MULTIPLICITY |
1104 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1143 | assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1105 | #endif |
1144 | #endif |
1106 | |
1145 | |
1107 | --signum; |
1146 | --signum; |
1108 | |
1147 | |
1109 | if (signum < 0 || signum >= signalmax) |
1148 | if (signum < 0 || signum >= signalmax) |
… | |
… | |
1238 | /* kqueue is borked on everything but netbsd apparently */ |
1277 | /* kqueue is borked on everything but netbsd apparently */ |
1239 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1278 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1240 | flags &= ~EVBACKEND_KQUEUE; |
1279 | flags &= ~EVBACKEND_KQUEUE; |
1241 | #endif |
1280 | #endif |
1242 | #ifdef __APPLE__ |
1281 | #ifdef __APPLE__ |
1243 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
1282 | /* only select works correctly on that "unix-certified" platform */ |
1244 | flags &= ~EVBACKEND_POLL; |
1283 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
|
|
1284 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
1245 | #endif |
1285 | #endif |
1246 | |
1286 | |
1247 | return flags; |
1287 | return flags; |
1248 | } |
1288 | } |
1249 | |
1289 | |
… | |
… | |
1286 | static void noinline |
1326 | static void noinline |
1287 | loop_init (EV_P_ unsigned int flags) |
1327 | loop_init (EV_P_ unsigned int flags) |
1288 | { |
1328 | { |
1289 | if (!backend) |
1329 | if (!backend) |
1290 | { |
1330 | { |
|
|
1331 | #if EV_USE_REALTIME |
|
|
1332 | if (!have_realtime) |
|
|
1333 | { |
|
|
1334 | struct timespec ts; |
|
|
1335 | |
|
|
1336 | if (!clock_gettime (CLOCK_REALTIME, &ts)) |
|
|
1337 | have_realtime = 1; |
|
|
1338 | } |
|
|
1339 | #endif |
|
|
1340 | |
1291 | #if EV_USE_MONOTONIC |
1341 | #if EV_USE_MONOTONIC |
|
|
1342 | if (!have_monotonic) |
1292 | { |
1343 | { |
1293 | struct timespec ts; |
1344 | struct timespec ts; |
|
|
1345 | |
1294 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1346 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1295 | have_monotonic = 1; |
1347 | have_monotonic = 1; |
1296 | } |
1348 | } |
1297 | #endif |
1349 | #endif |
1298 | |
1350 | |
1299 | ev_rt_now = ev_time (); |
1351 | ev_rt_now = ev_time (); |
1300 | mn_now = get_clock (); |
1352 | mn_now = get_clock (); |
1301 | now_floor = mn_now; |
1353 | now_floor = mn_now; |
… | |
… | |
1499 | { |
1551 | { |
1500 | postfork = 1; /* must be in line with ev_default_fork */ |
1552 | postfork = 1; /* must be in line with ev_default_fork */ |
1501 | } |
1553 | } |
1502 | |
1554 | |
1503 | #if EV_VERIFY |
1555 | #if EV_VERIFY |
1504 | void noinline |
1556 | static void noinline |
1505 | verify_watcher (EV_P_ W w) |
1557 | verify_watcher (EV_P_ W w) |
1506 | { |
1558 | { |
1507 | assert (("watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
1559 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
1508 | |
1560 | |
1509 | if (w->pending) |
1561 | if (w->pending) |
1510 | assert (("pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
1562 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
1511 | } |
1563 | } |
1512 | |
1564 | |
1513 | static void noinline |
1565 | static void noinline |
1514 | verify_heap (EV_P_ ANHE *heap, int N) |
1566 | verify_heap (EV_P_ ANHE *heap, int N) |
1515 | { |
1567 | { |
1516 | int i; |
1568 | int i; |
1517 | |
1569 | |
1518 | for (i = HEAP0; i < N + HEAP0; ++i) |
1570 | for (i = HEAP0; i < N + HEAP0; ++i) |
1519 | { |
1571 | { |
1520 | assert (("active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
1572 | assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
1521 | assert (("heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
1573 | assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
1522 | assert (("heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
1574 | assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
1523 | |
1575 | |
1524 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
1576 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
1525 | } |
1577 | } |
1526 | } |
1578 | } |
1527 | |
1579 | |
1528 | static void noinline |
1580 | static void noinline |
1529 | array_verify (EV_P_ W *ws, int cnt) |
1581 | array_verify (EV_P_ W *ws, int cnt) |
1530 | { |
1582 | { |
1531 | while (cnt--) |
1583 | while (cnt--) |
1532 | { |
1584 | { |
1533 | assert (("active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
1585 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
1534 | verify_watcher (EV_A_ ws [cnt]); |
1586 | verify_watcher (EV_A_ ws [cnt]); |
1535 | } |
1587 | } |
1536 | } |
1588 | } |
1537 | #endif |
1589 | #endif |
1538 | |
1590 | |
… | |
… | |
1545 | |
1597 | |
1546 | assert (activecnt >= -1); |
1598 | assert (activecnt >= -1); |
1547 | |
1599 | |
1548 | assert (fdchangemax >= fdchangecnt); |
1600 | assert (fdchangemax >= fdchangecnt); |
1549 | for (i = 0; i < fdchangecnt; ++i) |
1601 | for (i = 0; i < fdchangecnt; ++i) |
1550 | assert (("negative fd in fdchanges", fdchanges [i] >= 0)); |
1602 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
1551 | |
1603 | |
1552 | assert (anfdmax >= 0); |
1604 | assert (anfdmax >= 0); |
1553 | for (i = 0; i < anfdmax; ++i) |
1605 | for (i = 0; i < anfdmax; ++i) |
1554 | for (w = anfds [i].head; w; w = w->next) |
1606 | for (w = anfds [i].head; w; w = w->next) |
1555 | { |
1607 | { |
1556 | verify_watcher (EV_A_ (W)w); |
1608 | verify_watcher (EV_A_ (W)w); |
1557 | assert (("inactive fd watcher on anfd list", ev_active (w) == 1)); |
1609 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
1558 | assert (("fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
1610 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
1559 | } |
1611 | } |
1560 | |
1612 | |
1561 | assert (timermax >= timercnt); |
1613 | assert (timermax >= timercnt); |
1562 | verify_heap (EV_A_ timers, timercnt); |
1614 | verify_heap (EV_A_ timers, timercnt); |
1563 | |
1615 | |
… | |
… | |
1568 | |
1620 | |
1569 | for (i = NUMPRI; i--; ) |
1621 | for (i = NUMPRI; i--; ) |
1570 | { |
1622 | { |
1571 | assert (pendingmax [i] >= pendingcnt [i]); |
1623 | assert (pendingmax [i] >= pendingcnt [i]); |
1572 | #if EV_IDLE_ENABLE |
1624 | #if EV_IDLE_ENABLE |
|
|
1625 | assert (idleall >= 0); |
1573 | assert (idlemax [i] >= idlecnt [i]); |
1626 | assert (idlemax [i] >= idlecnt [i]); |
1574 | array_verify (EV_A_ (W *)idles [i], idlecnt [i]); |
1627 | array_verify (EV_A_ (W *)idles [i], idlecnt [i]); |
1575 | #endif |
1628 | #endif |
1576 | } |
1629 | } |
1577 | |
1630 | |
… | |
… | |
1639 | { |
1692 | { |
1640 | #if EV_MULTIPLICITY |
1693 | #if EV_MULTIPLICITY |
1641 | struct ev_loop *loop = ev_default_loop_ptr; |
1694 | struct ev_loop *loop = ev_default_loop_ptr; |
1642 | #endif |
1695 | #endif |
1643 | |
1696 | |
|
|
1697 | ev_default_loop_ptr = 0; |
|
|
1698 | |
1644 | #ifndef _WIN32 |
1699 | #ifndef _WIN32 |
1645 | ev_ref (EV_A); /* child watcher */ |
1700 | ev_ref (EV_A); /* child watcher */ |
1646 | ev_signal_stop (EV_A_ &childev); |
1701 | ev_signal_stop (EV_A_ &childev); |
1647 | #endif |
1702 | #endif |
1648 | |
1703 | |
… | |
… | |
1654 | { |
1709 | { |
1655 | #if EV_MULTIPLICITY |
1710 | #if EV_MULTIPLICITY |
1656 | struct ev_loop *loop = ev_default_loop_ptr; |
1711 | struct ev_loop *loop = ev_default_loop_ptr; |
1657 | #endif |
1712 | #endif |
1658 | |
1713 | |
1659 | if (backend) |
|
|
1660 | postfork = 1; /* must be in line with ev_loop_fork */ |
1714 | postfork = 1; /* must be in line with ev_loop_fork */ |
1661 | } |
1715 | } |
1662 | |
1716 | |
1663 | /*****************************************************************************/ |
1717 | /*****************************************************************************/ |
1664 | |
1718 | |
1665 | void |
1719 | void |
… | |
… | |
1678 | { |
1732 | { |
1679 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1733 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1680 | |
1734 | |
1681 | if (expect_true (p->w)) |
1735 | if (expect_true (p->w)) |
1682 | { |
1736 | { |
1683 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
1737 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
1684 | |
1738 | |
1685 | p->w->pending = 0; |
1739 | p->w->pending = 0; |
1686 | EV_CB_INVOKE (p->w, p->events); |
1740 | EV_CB_INVOKE (p->w, p->events); |
1687 | EV_FREQUENT_CHECK; |
1741 | EV_FREQUENT_CHECK; |
1688 | } |
1742 | } |
… | |
… | |
1719 | |
1773 | |
1720 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
1774 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
1721 | { |
1775 | { |
1722 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
1776 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
1723 | |
1777 | |
1724 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
1778 | /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/ |
1725 | |
1779 | |
1726 | /* first reschedule or stop timer */ |
1780 | /* first reschedule or stop timer */ |
1727 | if (w->repeat) |
1781 | if (w->repeat) |
1728 | { |
1782 | { |
1729 | ev_at (w) += w->repeat; |
1783 | ev_at (w) += w->repeat; |
1730 | if (ev_at (w) < mn_now) |
1784 | if (ev_at (w) < mn_now) |
1731 | ev_at (w) = mn_now; |
1785 | ev_at (w) = mn_now; |
1732 | |
1786 | |
1733 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1787 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1734 | |
1788 | |
1735 | ANHE_at_cache (timers [HEAP0]); |
1789 | ANHE_at_cache (timers [HEAP0]); |
1736 | downheap (timers, timercnt, HEAP0); |
1790 | downheap (timers, timercnt, HEAP0); |
1737 | } |
1791 | } |
1738 | else |
1792 | else |
… | |
… | |
1751 | |
1805 | |
1752 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
1806 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
1753 | { |
1807 | { |
1754 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
1808 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
1755 | |
1809 | |
1756 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
1810 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
1757 | |
1811 | |
1758 | /* first reschedule or stop timer */ |
1812 | /* first reschedule or stop timer */ |
1759 | if (w->reschedule_cb) |
1813 | if (w->reschedule_cb) |
1760 | { |
1814 | { |
1761 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1815 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1762 | |
1816 | |
1763 | assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
1817 | assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
1764 | |
1818 | |
1765 | ANHE_at_cache (periodics [HEAP0]); |
1819 | ANHE_at_cache (periodics [HEAP0]); |
1766 | downheap (periodics, periodiccnt, HEAP0); |
1820 | downheap (periodics, periodiccnt, HEAP0); |
1767 | } |
1821 | } |
1768 | else if (w->interval) |
1822 | else if (w->interval) |
… | |
… | |
1896 | ev_unref (EV_P) |
1950 | ev_unref (EV_P) |
1897 | { |
1951 | { |
1898 | --activecnt; |
1952 | --activecnt; |
1899 | } |
1953 | } |
1900 | |
1954 | |
|
|
1955 | void |
|
|
1956 | ev_now_update (EV_P) |
|
|
1957 | { |
|
|
1958 | time_update (EV_A_ 1e100); |
|
|
1959 | } |
|
|
1960 | |
1901 | static int loop_done; |
1961 | static int loop_done; |
1902 | |
1962 | |
1903 | void |
1963 | void |
1904 | ev_loop (EV_P_ int flags) |
1964 | ev_loop (EV_P_ int flags) |
1905 | { |
1965 | { |
… | |
… | |
2113 | int fd = w->fd; |
2173 | int fd = w->fd; |
2114 | |
2174 | |
2115 | if (expect_false (ev_is_active (w))) |
2175 | if (expect_false (ev_is_active (w))) |
2116 | return; |
2176 | return; |
2117 | |
2177 | |
2118 | assert (("ev_io_start called with negative fd", fd >= 0)); |
2178 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
|
|
2179 | assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV_IOFDSET | EV_READ | EV_WRITE)))); |
2119 | |
2180 | |
2120 | EV_FREQUENT_CHECK; |
2181 | EV_FREQUENT_CHECK; |
2121 | |
2182 | |
2122 | ev_start (EV_A_ (W)w, 1); |
2183 | ev_start (EV_A_ (W)w, 1); |
2123 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
2184 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2124 | wlist_add (&anfds[fd].head, (WL)w); |
2185 | wlist_add (&anfds[fd].head, (WL)w); |
2125 | |
2186 | |
2126 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
2187 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
2127 | w->events &= ~EV_IOFDSET; |
2188 | w->events &= ~EV_IOFDSET; |
2128 | |
2189 | |
… | |
… | |
2134 | { |
2195 | { |
2135 | clear_pending (EV_A_ (W)w); |
2196 | clear_pending (EV_A_ (W)w); |
2136 | if (expect_false (!ev_is_active (w))) |
2197 | if (expect_false (!ev_is_active (w))) |
2137 | return; |
2198 | return; |
2138 | |
2199 | |
2139 | assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2200 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2140 | |
2201 | |
2141 | EV_FREQUENT_CHECK; |
2202 | EV_FREQUENT_CHECK; |
2142 | |
2203 | |
2143 | wlist_del (&anfds[w->fd].head, (WL)w); |
2204 | wlist_del (&anfds[w->fd].head, (WL)w); |
2144 | ev_stop (EV_A_ (W)w); |
2205 | ev_stop (EV_A_ (W)w); |
… | |
… | |
2154 | if (expect_false (ev_is_active (w))) |
2215 | if (expect_false (ev_is_active (w))) |
2155 | return; |
2216 | return; |
2156 | |
2217 | |
2157 | ev_at (w) += mn_now; |
2218 | ev_at (w) += mn_now; |
2158 | |
2219 | |
2159 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2220 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2160 | |
2221 | |
2161 | EV_FREQUENT_CHECK; |
2222 | EV_FREQUENT_CHECK; |
2162 | |
2223 | |
2163 | ++timercnt; |
2224 | ++timercnt; |
2164 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
2225 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
… | |
… | |
2167 | ANHE_at_cache (timers [ev_active (w)]); |
2228 | ANHE_at_cache (timers [ev_active (w)]); |
2168 | upheap (timers, ev_active (w)); |
2229 | upheap (timers, ev_active (w)); |
2169 | |
2230 | |
2170 | EV_FREQUENT_CHECK; |
2231 | EV_FREQUENT_CHECK; |
2171 | |
2232 | |
2172 | /*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2233 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2173 | } |
2234 | } |
2174 | |
2235 | |
2175 | void noinline |
2236 | void noinline |
2176 | ev_timer_stop (EV_P_ ev_timer *w) |
2237 | ev_timer_stop (EV_P_ ev_timer *w) |
2177 | { |
2238 | { |
… | |
… | |
2182 | EV_FREQUENT_CHECK; |
2243 | EV_FREQUENT_CHECK; |
2183 | |
2244 | |
2184 | { |
2245 | { |
2185 | int active = ev_active (w); |
2246 | int active = ev_active (w); |
2186 | |
2247 | |
2187 | assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
2248 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
2188 | |
2249 | |
2189 | --timercnt; |
2250 | --timercnt; |
2190 | |
2251 | |
2191 | if (expect_true (active < timercnt + HEAP0)) |
2252 | if (expect_true (active < timercnt + HEAP0)) |
2192 | { |
2253 | { |
… | |
… | |
2236 | |
2297 | |
2237 | if (w->reschedule_cb) |
2298 | if (w->reschedule_cb) |
2238 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2299 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2239 | else if (w->interval) |
2300 | else if (w->interval) |
2240 | { |
2301 | { |
2241 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2302 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2242 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2303 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2243 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2304 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2244 | } |
2305 | } |
2245 | else |
2306 | else |
2246 | ev_at (w) = w->offset; |
2307 | ev_at (w) = w->offset; |
… | |
… | |
2254 | ANHE_at_cache (periodics [ev_active (w)]); |
2315 | ANHE_at_cache (periodics [ev_active (w)]); |
2255 | upheap (periodics, ev_active (w)); |
2316 | upheap (periodics, ev_active (w)); |
2256 | |
2317 | |
2257 | EV_FREQUENT_CHECK; |
2318 | EV_FREQUENT_CHECK; |
2258 | |
2319 | |
2259 | /*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2320 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2260 | } |
2321 | } |
2261 | |
2322 | |
2262 | void noinline |
2323 | void noinline |
2263 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2324 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2264 | { |
2325 | { |
… | |
… | |
2269 | EV_FREQUENT_CHECK; |
2330 | EV_FREQUENT_CHECK; |
2270 | |
2331 | |
2271 | { |
2332 | { |
2272 | int active = ev_active (w); |
2333 | int active = ev_active (w); |
2273 | |
2334 | |
2274 | assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
2335 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
2275 | |
2336 | |
2276 | --periodiccnt; |
2337 | --periodiccnt; |
2277 | |
2338 | |
2278 | if (expect_true (active < periodiccnt + HEAP0)) |
2339 | if (expect_true (active < periodiccnt + HEAP0)) |
2279 | { |
2340 | { |
… | |
… | |
2302 | |
2363 | |
2303 | void noinline |
2364 | void noinline |
2304 | ev_signal_start (EV_P_ ev_signal *w) |
2365 | ev_signal_start (EV_P_ ev_signal *w) |
2305 | { |
2366 | { |
2306 | #if EV_MULTIPLICITY |
2367 | #if EV_MULTIPLICITY |
2307 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2368 | assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2308 | #endif |
2369 | #endif |
2309 | if (expect_false (ev_is_active (w))) |
2370 | if (expect_false (ev_is_active (w))) |
2310 | return; |
2371 | return; |
2311 | |
2372 | |
2312 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2373 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); |
2313 | |
2374 | |
2314 | evpipe_init (EV_A); |
2375 | evpipe_init (EV_A); |
2315 | |
2376 | |
2316 | EV_FREQUENT_CHECK; |
2377 | EV_FREQUENT_CHECK; |
2317 | |
2378 | |
… | |
… | |
2320 | sigset_t full, prev; |
2381 | sigset_t full, prev; |
2321 | sigfillset (&full); |
2382 | sigfillset (&full); |
2322 | sigprocmask (SIG_SETMASK, &full, &prev); |
2383 | sigprocmask (SIG_SETMASK, &full, &prev); |
2323 | #endif |
2384 | #endif |
2324 | |
2385 | |
2325 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
2386 | array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); |
2326 | |
2387 | |
2327 | #ifndef _WIN32 |
2388 | #ifndef _WIN32 |
2328 | sigprocmask (SIG_SETMASK, &prev, 0); |
2389 | sigprocmask (SIG_SETMASK, &prev, 0); |
2329 | #endif |
2390 | #endif |
2330 | } |
2391 | } |
… | |
… | |
2368 | |
2429 | |
2369 | void |
2430 | void |
2370 | ev_child_start (EV_P_ ev_child *w) |
2431 | ev_child_start (EV_P_ ev_child *w) |
2371 | { |
2432 | { |
2372 | #if EV_MULTIPLICITY |
2433 | #if EV_MULTIPLICITY |
2373 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2434 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2374 | #endif |
2435 | #endif |
2375 | if (expect_false (ev_is_active (w))) |
2436 | if (expect_false (ev_is_active (w))) |
2376 | return; |
2437 | return; |
2377 | |
2438 | |
2378 | EV_FREQUENT_CHECK; |
2439 | EV_FREQUENT_CHECK; |
… | |
… | |
2403 | # ifdef _WIN32 |
2464 | # ifdef _WIN32 |
2404 | # undef lstat |
2465 | # undef lstat |
2405 | # define lstat(a,b) _stati64 (a,b) |
2466 | # define lstat(a,b) _stati64 (a,b) |
2406 | # endif |
2467 | # endif |
2407 | |
2468 | |
2408 | #define DEF_STAT_INTERVAL 5.0074891 |
2469 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
2470 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
2409 | #define MIN_STAT_INTERVAL 0.1074891 |
2471 | #define MIN_STAT_INTERVAL 0.1074891 |
2410 | |
2472 | |
2411 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2473 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2412 | |
2474 | |
2413 | #if EV_USE_INOTIFY |
2475 | #if EV_USE_INOTIFY |
2414 | # define EV_INOTIFY_BUFSIZE 8192 |
2476 | # define EV_INOTIFY_BUFSIZE 8192 |
… | |
… | |
2418 | { |
2480 | { |
2419 | 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); |
2481 | 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); |
2420 | |
2482 | |
2421 | if (w->wd < 0) |
2483 | if (w->wd < 0) |
2422 | { |
2484 | { |
|
|
2485 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2423 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2486 | ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2424 | |
2487 | |
2425 | /* monitor some parent directory for speedup hints */ |
2488 | /* monitor some parent directory for speedup hints */ |
2426 | /* note that exceeding the hardcoded limit is not a correctness issue, */ |
2489 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2427 | /* but an efficiency issue only */ |
2490 | /* but an efficiency issue only */ |
2428 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2491 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2429 | { |
2492 | { |
2430 | char path [4096]; |
2493 | char path [4096]; |
2431 | strcpy (path, w->path); |
2494 | strcpy (path, w->path); |
… | |
… | |
2435 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2498 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2436 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2499 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2437 | |
2500 | |
2438 | char *pend = strrchr (path, '/'); |
2501 | char *pend = strrchr (path, '/'); |
2439 | |
2502 | |
2440 | if (!pend) |
2503 | if (!pend || pend == path) |
2441 | break; /* whoops, no '/', complain to your admin */ |
2504 | break; |
2442 | |
2505 | |
2443 | *pend = 0; |
2506 | *pend = 0; |
2444 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2507 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2445 | } |
2508 | } |
2446 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2509 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2447 | } |
2510 | } |
2448 | } |
2511 | } |
2449 | else |
|
|
2450 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
2451 | |
2512 | |
2452 | if (w->wd >= 0) |
2513 | if (w->wd >= 0) |
|
|
2514 | { |
2453 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2515 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
2516 | |
|
|
2517 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
2518 | /* unless the filesystem it known to be local, we therefore still poll */ |
|
|
2519 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2520 | struct statfs sfs; |
|
|
2521 | |
|
|
2522 | if (fs_2625 && !statfs (w->path, &sfs)) |
|
|
2523 | if (sfs.f_type == 0x1373 /* devfs */ |
|
|
2524 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2525 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2526 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2527 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2528 | || sfs.f_type == 0x58465342 /* xfs */) |
|
|
2529 | return; |
|
|
2530 | |
|
|
2531 | w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2532 | ev_timer_again (EV_A_ &w->timer); |
|
|
2533 | } |
2454 | } |
2534 | } |
2455 | |
2535 | |
2456 | static void noinline |
2536 | static void noinline |
2457 | infy_del (EV_P_ ev_stat *w) |
2537 | infy_del (EV_P_ ev_stat *w) |
2458 | { |
2538 | { |
… | |
… | |
2472 | |
2552 | |
2473 | static void noinline |
2553 | static void noinline |
2474 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2554 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2475 | { |
2555 | { |
2476 | if (slot < 0) |
2556 | if (slot < 0) |
2477 | /* overflow, need to check for all hahs slots */ |
2557 | /* overflow, need to check for all hash slots */ |
2478 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2558 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2479 | infy_wd (EV_A_ slot, wd, ev); |
2559 | infy_wd (EV_A_ slot, wd, ev); |
2480 | else |
2560 | else |
2481 | { |
2561 | { |
2482 | WL w_; |
2562 | WL w_; |
… | |
… | |
2488 | |
2568 | |
2489 | if (w->wd == wd || wd == -1) |
2569 | if (w->wd == wd || wd == -1) |
2490 | { |
2570 | { |
2491 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2571 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2492 | { |
2572 | { |
|
|
2573 | wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2493 | w->wd = -1; |
2574 | w->wd = -1; |
2494 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2575 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2495 | } |
2576 | } |
2496 | |
2577 | |
2497 | stat_timer_cb (EV_A_ &w->timer, 0); |
2578 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2511 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
2592 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
2512 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
2593 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
2513 | } |
2594 | } |
2514 | |
2595 | |
2515 | void inline_size |
2596 | void inline_size |
|
|
2597 | check_2625 (EV_P) |
|
|
2598 | { |
|
|
2599 | /* kernels < 2.6.25 are borked |
|
|
2600 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
|
|
2601 | */ |
|
|
2602 | struct utsname buf; |
|
|
2603 | int major, minor, micro; |
|
|
2604 | |
|
|
2605 | if (uname (&buf)) |
|
|
2606 | return; |
|
|
2607 | |
|
|
2608 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
|
|
2609 | return; |
|
|
2610 | |
|
|
2611 | if (major < 2 |
|
|
2612 | || (major == 2 && minor < 6) |
|
|
2613 | || (major == 2 && minor == 6 && micro < 25)) |
|
|
2614 | return; |
|
|
2615 | |
|
|
2616 | fs_2625 = 1; |
|
|
2617 | } |
|
|
2618 | |
|
|
2619 | void inline_size |
2516 | infy_init (EV_P) |
2620 | infy_init (EV_P) |
2517 | { |
2621 | { |
2518 | if (fs_fd != -2) |
2622 | if (fs_fd != -2) |
2519 | return; |
2623 | return; |
|
|
2624 | |
|
|
2625 | fs_fd = -1; |
|
|
2626 | |
|
|
2627 | check_2625 (EV_A); |
2520 | |
2628 | |
2521 | fs_fd = inotify_init (); |
2629 | fs_fd = inotify_init (); |
2522 | |
2630 | |
2523 | if (fs_fd >= 0) |
2631 | if (fs_fd >= 0) |
2524 | { |
2632 | { |
… | |
… | |
2552 | w->wd = -1; |
2660 | w->wd = -1; |
2553 | |
2661 | |
2554 | if (fs_fd >= 0) |
2662 | if (fs_fd >= 0) |
2555 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2663 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2556 | else |
2664 | else |
2557 | ev_timer_start (EV_A_ &w->timer); |
2665 | ev_timer_again (EV_A_ &w->timer); |
2558 | } |
2666 | } |
2559 | |
|
|
2560 | } |
2667 | } |
2561 | } |
2668 | } |
2562 | |
2669 | |
|
|
2670 | #endif |
|
|
2671 | |
|
|
2672 | #ifdef _WIN32 |
|
|
2673 | # define EV_LSTAT(p,b) _stati64 (p, b) |
|
|
2674 | #else |
|
|
2675 | # define EV_LSTAT(p,b) lstat (p, b) |
2563 | #endif |
2676 | #endif |
2564 | |
2677 | |
2565 | void |
2678 | void |
2566 | ev_stat_stat (EV_P_ ev_stat *w) |
2679 | ev_stat_stat (EV_P_ ev_stat *w) |
2567 | { |
2680 | { |
… | |
… | |
2594 | || w->prev.st_atime != w->attr.st_atime |
2707 | || w->prev.st_atime != w->attr.st_atime |
2595 | || w->prev.st_mtime != w->attr.st_mtime |
2708 | || w->prev.st_mtime != w->attr.st_mtime |
2596 | || w->prev.st_ctime != w->attr.st_ctime |
2709 | || w->prev.st_ctime != w->attr.st_ctime |
2597 | ) { |
2710 | ) { |
2598 | #if EV_USE_INOTIFY |
2711 | #if EV_USE_INOTIFY |
|
|
2712 | if (fs_fd >= 0) |
|
|
2713 | { |
2599 | infy_del (EV_A_ w); |
2714 | infy_del (EV_A_ w); |
2600 | infy_add (EV_A_ w); |
2715 | infy_add (EV_A_ w); |
2601 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
2716 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
2717 | } |
2602 | #endif |
2718 | #endif |
2603 | |
2719 | |
2604 | ev_feed_event (EV_A_ w, EV_STAT); |
2720 | ev_feed_event (EV_A_ w, EV_STAT); |
2605 | } |
2721 | } |
2606 | } |
2722 | } |
… | |
… | |
2609 | ev_stat_start (EV_P_ ev_stat *w) |
2725 | ev_stat_start (EV_P_ ev_stat *w) |
2610 | { |
2726 | { |
2611 | if (expect_false (ev_is_active (w))) |
2727 | if (expect_false (ev_is_active (w))) |
2612 | return; |
2728 | return; |
2613 | |
2729 | |
2614 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2615 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2616 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2617 | |
|
|
2618 | ev_stat_stat (EV_A_ w); |
2730 | ev_stat_stat (EV_A_ w); |
2619 | |
2731 | |
|
|
2732 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
2620 | if (w->interval < MIN_STAT_INTERVAL) |
2733 | w->interval = MIN_STAT_INTERVAL; |
2621 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2622 | |
2734 | |
2623 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
2735 | ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL); |
2624 | ev_set_priority (&w->timer, ev_priority (w)); |
2736 | ev_set_priority (&w->timer, ev_priority (w)); |
2625 | |
2737 | |
2626 | #if EV_USE_INOTIFY |
2738 | #if EV_USE_INOTIFY |
2627 | infy_init (EV_A); |
2739 | infy_init (EV_A); |
2628 | |
2740 | |
2629 | if (fs_fd >= 0) |
2741 | if (fs_fd >= 0) |
2630 | infy_add (EV_A_ w); |
2742 | infy_add (EV_A_ w); |
2631 | else |
2743 | else |
2632 | #endif |
2744 | #endif |
2633 | ev_timer_start (EV_A_ &w->timer); |
2745 | ev_timer_again (EV_A_ &w->timer); |
2634 | |
2746 | |
2635 | ev_start (EV_A_ (W)w, 1); |
2747 | ev_start (EV_A_ (W)w, 1); |
2636 | |
2748 | |
2637 | EV_FREQUENT_CHECK; |
2749 | EV_FREQUENT_CHECK; |
2638 | } |
2750 | } |
… | |
… | |
2808 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
2920 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
2809 | } |
2921 | } |
2810 | } |
2922 | } |
2811 | } |
2923 | } |
2812 | |
2924 | |
|
|
2925 | static void |
|
|
2926 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
|
|
2927 | { |
|
|
2928 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
|
|
2929 | |
|
|
2930 | ev_embed_stop (EV_A_ w); |
|
|
2931 | |
|
|
2932 | { |
|
|
2933 | struct ev_loop *loop = w->other; |
|
|
2934 | |
|
|
2935 | ev_loop_fork (EV_A); |
|
|
2936 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
2937 | } |
|
|
2938 | |
|
|
2939 | ev_embed_start (EV_A_ w); |
|
|
2940 | } |
|
|
2941 | |
2813 | #if 0 |
2942 | #if 0 |
2814 | static void |
2943 | static void |
2815 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
2944 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
2816 | { |
2945 | { |
2817 | ev_idle_stop (EV_A_ idle); |
2946 | ev_idle_stop (EV_A_ idle); |
… | |
… | |
2824 | if (expect_false (ev_is_active (w))) |
2953 | if (expect_false (ev_is_active (w))) |
2825 | return; |
2954 | return; |
2826 | |
2955 | |
2827 | { |
2956 | { |
2828 | struct ev_loop *loop = w->other; |
2957 | struct ev_loop *loop = w->other; |
2829 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2958 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2830 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2959 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2831 | } |
2960 | } |
2832 | |
2961 | |
2833 | EV_FREQUENT_CHECK; |
2962 | EV_FREQUENT_CHECK; |
2834 | |
2963 | |
… | |
… | |
2837 | |
2966 | |
2838 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
2967 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
2839 | ev_set_priority (&w->prepare, EV_MINPRI); |
2968 | ev_set_priority (&w->prepare, EV_MINPRI); |
2840 | ev_prepare_start (EV_A_ &w->prepare); |
2969 | ev_prepare_start (EV_A_ &w->prepare); |
2841 | |
2970 | |
|
|
2971 | ev_fork_init (&w->fork, embed_fork_cb); |
|
|
2972 | ev_fork_start (EV_A_ &w->fork); |
|
|
2973 | |
2842 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
2974 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
2843 | |
2975 | |
2844 | ev_start (EV_A_ (W)w, 1); |
2976 | ev_start (EV_A_ (W)w, 1); |
2845 | |
2977 | |
2846 | EV_FREQUENT_CHECK; |
2978 | EV_FREQUENT_CHECK; |
… | |
… | |
2853 | if (expect_false (!ev_is_active (w))) |
2985 | if (expect_false (!ev_is_active (w))) |
2854 | return; |
2986 | return; |
2855 | |
2987 | |
2856 | EV_FREQUENT_CHECK; |
2988 | EV_FREQUENT_CHECK; |
2857 | |
2989 | |
2858 | ev_io_stop (EV_A_ &w->io); |
2990 | ev_io_stop (EV_A_ &w->io); |
2859 | ev_prepare_stop (EV_A_ &w->prepare); |
2991 | ev_prepare_stop (EV_A_ &w->prepare); |
2860 | |
2992 | ev_fork_stop (EV_A_ &w->fork); |
2861 | ev_stop (EV_A_ (W)w); |
|
|
2862 | |
2993 | |
2863 | EV_FREQUENT_CHECK; |
2994 | EV_FREQUENT_CHECK; |
2864 | } |
2995 | } |
2865 | #endif |
2996 | #endif |
2866 | |
2997 | |
… | |
… | |
2963 | once_cb (EV_P_ struct ev_once *once, int revents) |
3094 | once_cb (EV_P_ struct ev_once *once, int revents) |
2964 | { |
3095 | { |
2965 | void (*cb)(int revents, void *arg) = once->cb; |
3096 | void (*cb)(int revents, void *arg) = once->cb; |
2966 | void *arg = once->arg; |
3097 | void *arg = once->arg; |
2967 | |
3098 | |
2968 | ev_io_stop (EV_A_ &once->io); |
3099 | ev_io_stop (EV_A_ &once->io); |
2969 | ev_timer_stop (EV_A_ &once->to); |
3100 | ev_timer_stop (EV_A_ &once->to); |
2970 | ev_free (once); |
3101 | ev_free (once); |
2971 | |
3102 | |
2972 | cb (revents, arg); |
3103 | cb (revents, arg); |
2973 | } |
3104 | } |
2974 | |
3105 | |
2975 | static void |
3106 | static void |
2976 | once_cb_io (EV_P_ ev_io *w, int revents) |
3107 | once_cb_io (EV_P_ ev_io *w, int revents) |
2977 | { |
3108 | { |
2978 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
3109 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)); |
|
|
3110 | |
|
|
3111 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to)); |
2979 | } |
3112 | } |
2980 | |
3113 | |
2981 | static void |
3114 | static void |
2982 | once_cb_to (EV_P_ ev_timer *w, int revents) |
3115 | once_cb_to (EV_P_ ev_timer *w, int revents) |
2983 | { |
3116 | { |
2984 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
3117 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)); |
|
|
3118 | |
|
|
3119 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
2985 | } |
3120 | } |
2986 | |
3121 | |
2987 | void |
3122 | void |
2988 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
3123 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
2989 | { |
3124 | { |