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 | * |
… | |
… | |
110 | # define EV_USE_EPOLL 0 |
110 | # define EV_USE_EPOLL 0 |
111 | # endif |
111 | # endif |
112 | # endif |
112 | # endif |
113 | |
113 | |
114 | # ifndef EV_USE_KQUEUE |
114 | # ifndef EV_USE_KQUEUE |
115 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
115 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
116 | # define EV_USE_KQUEUE 1 |
116 | # define EV_USE_KQUEUE 1 |
117 | # else |
117 | # else |
118 | # define EV_USE_KQUEUE 0 |
118 | # define EV_USE_KQUEUE 0 |
119 | # endif |
119 | # endif |
120 | # endif |
120 | # endif |
… | |
… | |
133 | # else |
133 | # else |
134 | # define EV_USE_INOTIFY 0 |
134 | # define EV_USE_INOTIFY 0 |
135 | # endif |
135 | # endif |
136 | # endif |
136 | # endif |
137 | |
137 | |
|
|
138 | # ifndef EV_USE_SIGNALFD |
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|
139 | # if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H |
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|
140 | # define EV_USE_SIGNALFD 1 |
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|
141 | # else |
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|
142 | # define EV_USE_SIGNALFD 0 |
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|
143 | # endif |
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|
144 | # endif |
|
|
145 | |
138 | # ifndef EV_USE_EVENTFD |
146 | # ifndef EV_USE_EVENTFD |
139 | # if HAVE_EVENTFD |
147 | # if HAVE_EVENTFD |
140 | # define EV_USE_EVENTFD 1 |
148 | # define EV_USE_EVENTFD 1 |
141 | # else |
149 | # else |
142 | # define EV_USE_EVENTFD 0 |
150 | # define EV_USE_EVENTFD 0 |
… | |
… | |
145 | |
153 | |
146 | #endif |
154 | #endif |
147 | |
155 | |
148 | #include <math.h> |
156 | #include <math.h> |
149 | #include <stdlib.h> |
157 | #include <stdlib.h> |
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|
158 | #include <string.h> |
150 | #include <fcntl.h> |
159 | #include <fcntl.h> |
151 | #include <stddef.h> |
160 | #include <stddef.h> |
152 | |
161 | |
153 | #include <stdio.h> |
162 | #include <stdio.h> |
154 | |
163 | |
155 | #include <assert.h> |
164 | #include <assert.h> |
156 | #include <errno.h> |
165 | #include <errno.h> |
157 | #include <sys/types.h> |
166 | #include <sys/types.h> |
158 | #include <time.h> |
167 | #include <time.h> |
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|
168 | #include <limits.h> |
159 | |
169 | |
160 | #include <signal.h> |
170 | #include <signal.h> |
161 | |
171 | |
162 | #ifdef EV_H |
172 | #ifdef EV_H |
163 | # include EV_H |
173 | # include EV_H |
… | |
… | |
178 | # endif |
188 | # endif |
179 | #endif |
189 | #endif |
180 | |
190 | |
181 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
191 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
182 | |
192 | |
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|
193 | /* try to deduce the maximum number of signals on this platform */ |
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|
194 | #if defined (EV_NSIG) |
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|
195 | /* use what's provided */ |
|
|
196 | #elif defined (NSIG) |
|
|
197 | # define EV_NSIG (NSIG) |
|
|
198 | #elif defined(_NSIG) |
|
|
199 | # define EV_NSIG (_NSIG) |
|
|
200 | #elif defined (SIGMAX) |
|
|
201 | # define EV_NSIG (SIGMAX+1) |
|
|
202 | #elif defined (SIG_MAX) |
|
|
203 | # define EV_NSIG (SIG_MAX+1) |
|
|
204 | #elif defined (_SIG_MAX) |
|
|
205 | # define EV_NSIG (_SIG_MAX+1) |
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|
206 | #elif defined (MAXSIG) |
|
|
207 | # define EV_NSIG (MAXSIG+1) |
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|
208 | #elif defined (MAX_SIG) |
|
|
209 | # define EV_NSIG (MAX_SIG+1) |
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|
210 | #elif defined (SIGARRAYSIZE) |
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|
211 | # define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */ |
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|
212 | #elif defined (_sys_nsig) |
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|
213 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
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214 | #else |
|
|
215 | # error "unable to find value for NSIG, please report" |
|
|
216 | /* to make it compile regardless, just remove the above line */ |
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217 | # define EV_NSIG 65 |
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|
218 | #endif |
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|
219 | |
183 | #ifndef EV_USE_CLOCK_SYSCALL |
220 | #ifndef EV_USE_CLOCK_SYSCALL |
184 | # if __linux && __GLIBC__ >= 2 |
221 | # if __linux && __GLIBC__ >= 2 |
185 | # define EV_USE_CLOCK_SYSCALL 1 |
222 | # define EV_USE_CLOCK_SYSCALL 1 |
186 | # else |
223 | # else |
187 | # define EV_USE_CLOCK_SYSCALL 0 |
224 | # define EV_USE_CLOCK_SYSCALL 0 |
… | |
… | |
263 | #ifndef EV_USE_EVENTFD |
300 | #ifndef EV_USE_EVENTFD |
264 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
301 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
265 | # define EV_USE_EVENTFD 1 |
302 | # define EV_USE_EVENTFD 1 |
266 | # else |
303 | # else |
267 | # define EV_USE_EVENTFD 0 |
304 | # define EV_USE_EVENTFD 0 |
|
|
305 | # endif |
|
|
306 | #endif |
|
|
307 | |
|
|
308 | #ifndef EV_USE_SIGNALFD |
|
|
309 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
|
|
310 | # define EV_USE_SIGNALFD 1 |
|
|
311 | # else |
|
|
312 | # define EV_USE_SIGNALFD 0 |
268 | # endif |
313 | # endif |
269 | #endif |
314 | #endif |
270 | |
315 | |
271 | #if 0 /* debugging */ |
316 | #if 0 /* debugging */ |
272 | # define EV_VERIFY 3 |
317 | # define EV_VERIFY 3 |
… | |
… | |
300 | # endif |
345 | # endif |
301 | #endif |
346 | #endif |
302 | |
347 | |
303 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
348 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
304 | |
349 | |
|
|
350 | #ifdef _AIX |
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|
351 | /* AIX has a completely broken poll.h header */ |
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|
352 | # undef EV_USE_POLL |
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|
353 | # define EV_USE_POLL 0 |
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|
354 | #endif |
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|
355 | |
305 | #ifndef CLOCK_MONOTONIC |
356 | #ifndef CLOCK_MONOTONIC |
306 | # undef EV_USE_MONOTONIC |
357 | # undef EV_USE_MONOTONIC |
307 | # define EV_USE_MONOTONIC 0 |
358 | # define EV_USE_MONOTONIC 0 |
308 | #endif |
359 | #endif |
309 | |
360 | |
… | |
… | |
339 | #endif |
390 | #endif |
340 | |
391 | |
341 | #if EV_USE_EVENTFD |
392 | #if EV_USE_EVENTFD |
342 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
393 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
343 | # include <stdint.h> |
394 | # include <stdint.h> |
|
|
395 | # ifndef EFD_NONBLOCK |
|
|
396 | # define EFD_NONBLOCK O_NONBLOCK |
|
|
397 | # endif |
|
|
398 | # ifndef EFD_CLOEXEC |
|
|
399 | # ifdef O_CLOEXEC |
|
|
400 | # define EFD_CLOEXEC O_CLOEXEC |
|
|
401 | # else |
|
|
402 | # define EFD_CLOEXEC 02000000 |
|
|
403 | # endif |
|
|
404 | # endif |
344 | # ifdef __cplusplus |
405 | # ifdef __cplusplus |
345 | extern "C" { |
406 | extern "C" { |
346 | # endif |
407 | # endif |
347 | int eventfd (unsigned int initval, int flags); |
408 | int (eventfd) (unsigned int initval, int flags); |
348 | # ifdef __cplusplus |
409 | # ifdef __cplusplus |
349 | } |
410 | } |
350 | # endif |
411 | # endif |
351 | #endif |
412 | #endif |
|
|
413 | |
|
|
414 | #if EV_USE_SIGNALFD |
|
|
415 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
|
|
416 | # include <stdint.h> |
|
|
417 | # ifndef SFD_NONBLOCK |
|
|
418 | # define SFD_NONBLOCK O_NONBLOCK |
|
|
419 | # endif |
|
|
420 | # ifndef SFD_CLOEXEC |
|
|
421 | # ifdef O_CLOEXEC |
|
|
422 | # define SFD_CLOEXEC O_CLOEXEC |
|
|
423 | # else |
|
|
424 | # define SFD_CLOEXEC 02000000 |
|
|
425 | # endif |
|
|
426 | # endif |
|
|
427 | # ifdef __cplusplus |
|
|
428 | extern "C" { |
|
|
429 | # endif |
|
|
430 | int signalfd (int fd, const sigset_t *mask, int flags); |
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|
431 | |
|
|
432 | struct signalfd_siginfo |
|
|
433 | { |
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|
434 | uint32_t ssi_signo; |
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|
435 | char pad[128 - sizeof (uint32_t)]; |
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|
436 | }; |
|
|
437 | # ifdef __cplusplus |
|
|
438 | } |
|
|
439 | # endif |
|
|
440 | #endif |
|
|
441 | |
352 | |
442 | |
353 | /**/ |
443 | /**/ |
354 | |
444 | |
355 | #if EV_VERIFY >= 3 |
445 | #if EV_VERIFY >= 3 |
356 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
446 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
… | |
… | |
368 | */ |
458 | */ |
369 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
459 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
370 | |
460 | |
371 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
461 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
372 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
462 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
373 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
|
|
374 | |
463 | |
375 | #if __GNUC__ >= 4 |
464 | #if __GNUC__ >= 4 |
376 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
465 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
377 | # define noinline __attribute__ ((noinline)) |
466 | # define noinline __attribute__ ((noinline)) |
378 | #else |
467 | #else |
… | |
… | |
419 | |
508 | |
420 | #if EV_USE_MONOTONIC |
509 | #if EV_USE_MONOTONIC |
421 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
510 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
422 | #endif |
511 | #endif |
423 | |
512 | |
|
|
513 | #ifndef EV_FD_TO_WIN32_HANDLE |
|
|
514 | # define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
|
|
515 | #endif |
|
|
516 | #ifndef EV_WIN32_HANDLE_TO_FD |
|
|
517 | # define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0) |
|
|
518 | #endif |
|
|
519 | #ifndef EV_WIN32_CLOSE_FD |
|
|
520 | # define EV_WIN32_CLOSE_FD(fd) close (fd) |
|
|
521 | #endif |
|
|
522 | |
424 | #ifdef _WIN32 |
523 | #ifdef _WIN32 |
425 | # include "ev_win32.c" |
524 | # include "ev_win32.c" |
426 | #endif |
525 | #endif |
427 | |
526 | |
428 | /*****************************************************************************/ |
527 | /*****************************************************************************/ |
… | |
… | |
443 | |
542 | |
444 | if (syserr_cb) |
543 | if (syserr_cb) |
445 | syserr_cb (msg); |
544 | syserr_cb (msg); |
446 | else |
545 | else |
447 | { |
546 | { |
|
|
547 | #if EV_AVOID_STDIO |
|
|
548 | write (STDERR_FILENO, msg, strlen (msg)); |
|
|
549 | write (STDERR_FILENO, ": ", 2); |
|
|
550 | msg = strerror (errno); |
|
|
551 | write (STDERR_FILENO, msg, strlen (msg)); |
|
|
552 | write (STDERR_FILENO, "\n", 1); |
|
|
553 | #else |
448 | perror (msg); |
554 | perror (msg); |
|
|
555 | #endif |
449 | abort (); |
556 | abort (); |
450 | } |
557 | } |
451 | } |
558 | } |
452 | |
559 | |
453 | static void * |
560 | static void * |
… | |
… | |
478 | { |
585 | { |
479 | ptr = alloc (ptr, size); |
586 | ptr = alloc (ptr, size); |
480 | |
587 | |
481 | if (!ptr && size) |
588 | if (!ptr && size) |
482 | { |
589 | { |
|
|
590 | #if EV_AVOID_STDIO |
|
|
591 | write (STDERR_FILENO, "libev: memory allocation failed, aborting.", |
|
|
592 | sizeof ("libev: memory allocation failed, aborting.") - 1); |
|
|
593 | #else |
483 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
594 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
|
|
595 | #endif |
484 | abort (); |
596 | abort (); |
485 | } |
597 | } |
486 | |
598 | |
487 | return ptr; |
599 | return ptr; |
488 | } |
600 | } |
… | |
… | |
647 | |
759 | |
648 | tv.tv_sec = (time_t)delay; |
760 | tv.tv_sec = (time_t)delay; |
649 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
761 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
650 | |
762 | |
651 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
763 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
652 | /* somehting not guaranteed by newer posix versions, but guaranteed */ |
764 | /* something not guaranteed by newer posix versions, but guaranteed */ |
653 | /* by older ones */ |
765 | /* by older ones */ |
654 | select (0, 0, 0, 0, &tv); |
766 | select (0, 0, 0, 0, &tv); |
655 | #endif |
767 | #endif |
656 | } |
768 | } |
657 | } |
769 | } |
… | |
… | |
819 | |
931 | |
820 | #if EV_SELECT_IS_WINSOCKET |
932 | #if EV_SELECT_IS_WINSOCKET |
821 | if (events) |
933 | if (events) |
822 | { |
934 | { |
823 | unsigned long arg; |
935 | unsigned long arg; |
824 | #ifdef EV_FD_TO_WIN32_HANDLE |
|
|
825 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
936 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
826 | #else |
|
|
827 | anfd->handle = _get_osfhandle (fd); |
|
|
828 | #endif |
|
|
829 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
937 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
830 | } |
938 | } |
831 | #endif |
939 | #endif |
832 | |
940 | |
833 | { |
941 | { |
… | |
… | |
876 | /* check whether the given fd is atcually valid, for error recovery */ |
984 | /* check whether the given fd is atcually valid, for error recovery */ |
877 | inline_size int |
985 | inline_size int |
878 | fd_valid (int fd) |
986 | fd_valid (int fd) |
879 | { |
987 | { |
880 | #ifdef _WIN32 |
988 | #ifdef _WIN32 |
881 | return _get_osfhandle (fd) != -1; |
989 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
882 | #else |
990 | #else |
883 | return fcntl (fd, F_GETFD) != -1; |
991 | return fcntl (fd, F_GETFD) != -1; |
884 | #endif |
992 | #endif |
885 | } |
993 | } |
886 | |
994 | |
… | |
… | |
904 | |
1012 | |
905 | for (fd = anfdmax; fd--; ) |
1013 | for (fd = anfdmax; fd--; ) |
906 | if (anfds [fd].events) |
1014 | if (anfds [fd].events) |
907 | { |
1015 | { |
908 | fd_kill (EV_A_ fd); |
1016 | fd_kill (EV_A_ fd); |
909 | return; |
1017 | break; |
910 | } |
1018 | } |
911 | } |
1019 | } |
912 | |
1020 | |
913 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1021 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
914 | static void noinline |
1022 | static void noinline |
… | |
… | |
1004 | |
1112 | |
1005 | for (;;) |
1113 | for (;;) |
1006 | { |
1114 | { |
1007 | int c = k << 1; |
1115 | int c = k << 1; |
1008 | |
1116 | |
1009 | if (c > N + HEAP0 - 1) |
1117 | if (c >= N + HEAP0) |
1010 | break; |
1118 | break; |
1011 | |
1119 | |
1012 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
1120 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
1013 | ? 1 : 0; |
1121 | ? 1 : 0; |
1014 | |
1122 | |
… | |
… | |
1050 | |
1158 | |
1051 | /* move an element suitably so it is in a correct place */ |
1159 | /* move an element suitably so it is in a correct place */ |
1052 | inline_size void |
1160 | inline_size void |
1053 | adjustheap (ANHE *heap, int N, int k) |
1161 | adjustheap (ANHE *heap, int N, int k) |
1054 | { |
1162 | { |
1055 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
1163 | if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)])) |
1056 | upheap (heap, k); |
1164 | upheap (heap, k); |
1057 | else |
1165 | else |
1058 | downheap (heap, N, k); |
1166 | downheap (heap, N, k); |
1059 | } |
1167 | } |
1060 | |
1168 | |
… | |
… | |
1073 | /*****************************************************************************/ |
1181 | /*****************************************************************************/ |
1074 | |
1182 | |
1075 | /* associate signal watchers to a signal signal */ |
1183 | /* associate signal watchers to a signal signal */ |
1076 | typedef struct |
1184 | typedef struct |
1077 | { |
1185 | { |
|
|
1186 | EV_ATOMIC_T pending; |
|
|
1187 | #if EV_MULTIPLICITY |
|
|
1188 | EV_P; |
|
|
1189 | #endif |
1078 | WL head; |
1190 | WL head; |
1079 | EV_ATOMIC_T gotsig; |
|
|
1080 | } ANSIG; |
1191 | } ANSIG; |
1081 | |
1192 | |
1082 | static ANSIG *signals; |
1193 | static ANSIG signals [EV_NSIG - 1]; |
1083 | static int signalmax; |
|
|
1084 | |
|
|
1085 | static EV_ATOMIC_T gotsig; |
|
|
1086 | |
1194 | |
1087 | /*****************************************************************************/ |
1195 | /*****************************************************************************/ |
1088 | |
1196 | |
1089 | /* used to prepare libev internal fd's */ |
1197 | /* used to prepare libev internal fd's */ |
1090 | /* this is not fork-safe */ |
1198 | /* this is not fork-safe */ |
1091 | inline_speed void |
1199 | inline_speed void |
1092 | fd_intern (int fd) |
1200 | fd_intern (int fd) |
1093 | { |
1201 | { |
1094 | #ifdef _WIN32 |
1202 | #ifdef _WIN32 |
1095 | unsigned long arg = 1; |
1203 | unsigned long arg = 1; |
1096 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
1204 | ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg); |
1097 | #else |
1205 | #else |
1098 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
1206 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
1099 | fcntl (fd, F_SETFL, O_NONBLOCK); |
1207 | fcntl (fd, F_SETFL, O_NONBLOCK); |
1100 | #endif |
1208 | #endif |
1101 | } |
1209 | } |
… | |
… | |
1104 | evpipe_init (EV_P) |
1212 | evpipe_init (EV_P) |
1105 | { |
1213 | { |
1106 | if (!ev_is_active (&pipe_w)) |
1214 | if (!ev_is_active (&pipe_w)) |
1107 | { |
1215 | { |
1108 | #if EV_USE_EVENTFD |
1216 | #if EV_USE_EVENTFD |
|
|
1217 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
|
|
1218 | if (evfd < 0 && errno == EINVAL) |
1109 | if ((evfd = eventfd (0, 0)) >= 0) |
1219 | evfd = eventfd (0, 0); |
|
|
1220 | |
|
|
1221 | if (evfd >= 0) |
1110 | { |
1222 | { |
1111 | evpipe [0] = -1; |
1223 | evpipe [0] = -1; |
1112 | fd_intern (evfd); |
1224 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
1113 | ev_io_set (&pipe_w, evfd, EV_READ); |
1225 | ev_io_set (&pipe_w, evfd, EV_READ); |
1114 | } |
1226 | } |
1115 | else |
1227 | else |
1116 | #endif |
1228 | #endif |
1117 | { |
1229 | { |
… | |
… | |
1154 | /* called whenever the libev signal pipe */ |
1266 | /* called whenever the libev signal pipe */ |
1155 | /* got some events (signal, async) */ |
1267 | /* got some events (signal, async) */ |
1156 | static void |
1268 | static void |
1157 | pipecb (EV_P_ ev_io *iow, int revents) |
1269 | pipecb (EV_P_ ev_io *iow, int revents) |
1158 | { |
1270 | { |
|
|
1271 | int i; |
|
|
1272 | |
1159 | #if EV_USE_EVENTFD |
1273 | #if EV_USE_EVENTFD |
1160 | if (evfd >= 0) |
1274 | if (evfd >= 0) |
1161 | { |
1275 | { |
1162 | uint64_t counter; |
1276 | uint64_t counter; |
1163 | read (evfd, &counter, sizeof (uint64_t)); |
1277 | read (evfd, &counter, sizeof (uint64_t)); |
… | |
… | |
1167 | { |
1281 | { |
1168 | char dummy; |
1282 | char dummy; |
1169 | read (evpipe [0], &dummy, 1); |
1283 | read (evpipe [0], &dummy, 1); |
1170 | } |
1284 | } |
1171 | |
1285 | |
1172 | if (gotsig && ev_is_default_loop (EV_A)) |
1286 | if (sig_pending) |
1173 | { |
1287 | { |
1174 | int signum; |
1288 | sig_pending = 0; |
1175 | gotsig = 0; |
|
|
1176 | |
1289 | |
1177 | for (signum = signalmax; signum--; ) |
1290 | for (i = EV_NSIG - 1; i--; ) |
1178 | if (signals [signum].gotsig) |
1291 | if (expect_false (signals [i].pending)) |
1179 | ev_feed_signal_event (EV_A_ signum + 1); |
1292 | ev_feed_signal_event (EV_A_ i + 1); |
1180 | } |
1293 | } |
1181 | |
1294 | |
1182 | #if EV_ASYNC_ENABLE |
1295 | #if EV_ASYNC_ENABLE |
1183 | if (gotasync) |
1296 | if (async_pending) |
1184 | { |
1297 | { |
1185 | int i; |
1298 | async_pending = 0; |
1186 | gotasync = 0; |
|
|
1187 | |
1299 | |
1188 | for (i = asynccnt; i--; ) |
1300 | for (i = asynccnt; i--; ) |
1189 | if (asyncs [i]->sent) |
1301 | if (asyncs [i]->sent) |
1190 | { |
1302 | { |
1191 | asyncs [i]->sent = 0; |
1303 | asyncs [i]->sent = 0; |
… | |
… | |
1199 | |
1311 | |
1200 | static void |
1312 | static void |
1201 | ev_sighandler (int signum) |
1313 | ev_sighandler (int signum) |
1202 | { |
1314 | { |
1203 | #if EV_MULTIPLICITY |
1315 | #if EV_MULTIPLICITY |
1204 | struct ev_loop *loop = &default_loop_struct; |
1316 | EV_P = signals [signum - 1].loop; |
1205 | #endif |
1317 | #endif |
1206 | |
1318 | |
1207 | #if _WIN32 |
1319 | #ifdef _WIN32 |
1208 | signal (signum, ev_sighandler); |
1320 | signal (signum, ev_sighandler); |
1209 | #endif |
1321 | #endif |
1210 | |
1322 | |
1211 | signals [signum - 1].gotsig = 1; |
1323 | signals [signum - 1].pending = 1; |
1212 | evpipe_write (EV_A_ &gotsig); |
1324 | evpipe_write (EV_A_ &sig_pending); |
1213 | } |
1325 | } |
1214 | |
1326 | |
1215 | void noinline |
1327 | void noinline |
1216 | ev_feed_signal_event (EV_P_ int signum) |
1328 | ev_feed_signal_event (EV_P_ int signum) |
1217 | { |
1329 | { |
1218 | WL w; |
1330 | WL w; |
1219 | |
1331 | |
|
|
1332 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
|
|
1333 | return; |
|
|
1334 | |
|
|
1335 | --signum; |
|
|
1336 | |
1220 | #if EV_MULTIPLICITY |
1337 | #if EV_MULTIPLICITY |
1221 | assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1338 | /* it is permissible to try to feed a signal to the wrong loop */ |
1222 | #endif |
1339 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
1223 | |
1340 | |
1224 | --signum; |
1341 | if (expect_false (signals [signum].loop != EV_A)) |
1225 | |
|
|
1226 | if (signum < 0 || signum >= signalmax) |
|
|
1227 | return; |
1342 | return; |
|
|
1343 | #endif |
1228 | |
1344 | |
1229 | signals [signum].gotsig = 0; |
1345 | signals [signum].pending = 0; |
1230 | |
1346 | |
1231 | for (w = signals [signum].head; w; w = w->next) |
1347 | for (w = signals [signum].head; w; w = w->next) |
1232 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1348 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1233 | } |
1349 | } |
|
|
1350 | |
|
|
1351 | #if EV_USE_SIGNALFD |
|
|
1352 | static void |
|
|
1353 | sigfdcb (EV_P_ ev_io *iow, int revents) |
|
|
1354 | { |
|
|
1355 | struct signalfd_siginfo si[2], *sip; /* these structs are big */ |
|
|
1356 | |
|
|
1357 | for (;;) |
|
|
1358 | { |
|
|
1359 | ssize_t res = read (sigfd, si, sizeof (si)); |
|
|
1360 | |
|
|
1361 | /* not ISO-C, as res might be -1, but works with SuS */ |
|
|
1362 | for (sip = si; (char *)sip < (char *)si + res; ++sip) |
|
|
1363 | ev_feed_signal_event (EV_A_ sip->ssi_signo); |
|
|
1364 | |
|
|
1365 | if (res < (ssize_t)sizeof (si)) |
|
|
1366 | break; |
|
|
1367 | } |
|
|
1368 | } |
|
|
1369 | #endif |
1234 | |
1370 | |
1235 | /*****************************************************************************/ |
1371 | /*****************************************************************************/ |
1236 | |
1372 | |
1237 | static WL childs [EV_PID_HASHSIZE]; |
1373 | static WL childs [EV_PID_HASHSIZE]; |
1238 | |
1374 | |
… | |
… | |
1458 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1594 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1459 | have_monotonic = 1; |
1595 | have_monotonic = 1; |
1460 | } |
1596 | } |
1461 | #endif |
1597 | #endif |
1462 | |
1598 | |
|
|
1599 | /* pid check not overridable via env */ |
|
|
1600 | #ifndef _WIN32 |
|
|
1601 | if (flags & EVFLAG_FORKCHECK) |
|
|
1602 | curpid = getpid (); |
|
|
1603 | #endif |
|
|
1604 | |
|
|
1605 | if (!(flags & EVFLAG_NOENV) |
|
|
1606 | && !enable_secure () |
|
|
1607 | && getenv ("LIBEV_FLAGS")) |
|
|
1608 | flags = atoi (getenv ("LIBEV_FLAGS")); |
|
|
1609 | |
1463 | ev_rt_now = ev_time (); |
1610 | ev_rt_now = ev_time (); |
1464 | mn_now = get_clock (); |
1611 | mn_now = get_clock (); |
1465 | now_floor = mn_now; |
1612 | now_floor = mn_now; |
1466 | rtmn_diff = ev_rt_now - mn_now; |
1613 | rtmn_diff = ev_rt_now - mn_now; |
1467 | #if EV_MINIMAL < 2 |
1614 | #if EV_MINIMAL < 2 |
… | |
… | |
1470 | |
1617 | |
1471 | io_blocktime = 0.; |
1618 | io_blocktime = 0.; |
1472 | timeout_blocktime = 0.; |
1619 | timeout_blocktime = 0.; |
1473 | backend = 0; |
1620 | backend = 0; |
1474 | backend_fd = -1; |
1621 | backend_fd = -1; |
1475 | gotasync = 0; |
1622 | sig_pending = 0; |
|
|
1623 | #if EV_ASYNC_ENABLE |
|
|
1624 | async_pending = 0; |
|
|
1625 | #endif |
1476 | #if EV_USE_INOTIFY |
1626 | #if EV_USE_INOTIFY |
1477 | fs_fd = -2; |
1627 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1478 | #endif |
1628 | #endif |
1479 | |
1629 | #if EV_USE_SIGNALFD |
1480 | /* pid check not overridable via env */ |
1630 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
1481 | #ifndef _WIN32 |
|
|
1482 | if (flags & EVFLAG_FORKCHECK) |
|
|
1483 | curpid = getpid (); |
|
|
1484 | #endif |
1631 | #endif |
1485 | |
|
|
1486 | if (!(flags & EVFLAG_NOENV) |
|
|
1487 | && !enable_secure () |
|
|
1488 | && getenv ("LIBEV_FLAGS")) |
|
|
1489 | flags = atoi (getenv ("LIBEV_FLAGS")); |
|
|
1490 | |
1632 | |
1491 | if (!(flags & 0x0000ffffU)) |
1633 | if (!(flags & 0x0000ffffU)) |
1492 | flags |= ev_recommended_backends (); |
1634 | flags |= ev_recommended_backends (); |
1493 | |
1635 | |
1494 | #if EV_USE_PORT |
1636 | #if EV_USE_PORT |
… | |
… | |
1520 | { |
1662 | { |
1521 | int i; |
1663 | int i; |
1522 | |
1664 | |
1523 | if (ev_is_active (&pipe_w)) |
1665 | if (ev_is_active (&pipe_w)) |
1524 | { |
1666 | { |
1525 | ev_ref (EV_A); /* signal watcher */ |
1667 | /*ev_ref (EV_A);*/ |
1526 | ev_io_stop (EV_A_ &pipe_w); |
1668 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1527 | |
1669 | |
1528 | #if EV_USE_EVENTFD |
1670 | #if EV_USE_EVENTFD |
1529 | if (evfd >= 0) |
1671 | if (evfd >= 0) |
1530 | close (evfd); |
1672 | close (evfd); |
1531 | #endif |
1673 | #endif |
1532 | |
1674 | |
1533 | if (evpipe [0] >= 0) |
1675 | if (evpipe [0] >= 0) |
1534 | { |
1676 | { |
1535 | close (evpipe [0]); |
1677 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1536 | close (evpipe [1]); |
1678 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1537 | } |
1679 | } |
1538 | } |
1680 | } |
|
|
1681 | |
|
|
1682 | #if EV_USE_SIGNALFD |
|
|
1683 | if (ev_is_active (&sigfd_w)) |
|
|
1684 | close (sigfd); |
|
|
1685 | #endif |
1539 | |
1686 | |
1540 | #if EV_USE_INOTIFY |
1687 | #if EV_USE_INOTIFY |
1541 | if (fs_fd >= 0) |
1688 | if (fs_fd >= 0) |
1542 | close (fs_fd); |
1689 | close (fs_fd); |
1543 | #endif |
1690 | #endif |
… | |
… | |
1567 | #if EV_IDLE_ENABLE |
1714 | #if EV_IDLE_ENABLE |
1568 | array_free (idle, [i]); |
1715 | array_free (idle, [i]); |
1569 | #endif |
1716 | #endif |
1570 | } |
1717 | } |
1571 | |
1718 | |
1572 | ev_free (anfds); anfdmax = 0; |
1719 | ev_free (anfds); anfds = 0; anfdmax = 0; |
1573 | |
1720 | |
1574 | /* have to use the microsoft-never-gets-it-right macro */ |
1721 | /* have to use the microsoft-never-gets-it-right macro */ |
1575 | array_free (rfeed, EMPTY); |
1722 | array_free (rfeed, EMPTY); |
1576 | array_free (fdchange, EMPTY); |
1723 | array_free (fdchange, EMPTY); |
1577 | array_free (timer, EMPTY); |
1724 | array_free (timer, EMPTY); |
… | |
… | |
1612 | |
1759 | |
1613 | if (ev_is_active (&pipe_w)) |
1760 | if (ev_is_active (&pipe_w)) |
1614 | { |
1761 | { |
1615 | /* this "locks" the handlers against writing to the pipe */ |
1762 | /* this "locks" the handlers against writing to the pipe */ |
1616 | /* while we modify the fd vars */ |
1763 | /* while we modify the fd vars */ |
1617 | gotsig = 1; |
1764 | sig_pending = 1; |
1618 | #if EV_ASYNC_ENABLE |
1765 | #if EV_ASYNC_ENABLE |
1619 | gotasync = 1; |
1766 | async_pending = 1; |
1620 | #endif |
1767 | #endif |
1621 | |
1768 | |
1622 | ev_ref (EV_A); |
1769 | ev_ref (EV_A); |
1623 | ev_io_stop (EV_A_ &pipe_w); |
1770 | ev_io_stop (EV_A_ &pipe_w); |
1624 | |
1771 | |
… | |
… | |
1627 | close (evfd); |
1774 | close (evfd); |
1628 | #endif |
1775 | #endif |
1629 | |
1776 | |
1630 | if (evpipe [0] >= 0) |
1777 | if (evpipe [0] >= 0) |
1631 | { |
1778 | { |
1632 | close (evpipe [0]); |
1779 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1633 | close (evpipe [1]); |
1780 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1634 | } |
1781 | } |
1635 | |
1782 | |
1636 | evpipe_init (EV_A); |
1783 | evpipe_init (EV_A); |
1637 | /* now iterate over everything, in case we missed something */ |
1784 | /* now iterate over everything, in case we missed something */ |
1638 | pipecb (EV_A_ &pipe_w, EV_READ); |
1785 | pipecb (EV_A_ &pipe_w, EV_READ); |
… | |
… | |
1644 | #if EV_MULTIPLICITY |
1791 | #if EV_MULTIPLICITY |
1645 | |
1792 | |
1646 | struct ev_loop * |
1793 | struct ev_loop * |
1647 | ev_loop_new (unsigned int flags) |
1794 | ev_loop_new (unsigned int flags) |
1648 | { |
1795 | { |
1649 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1796 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1650 | |
1797 | |
1651 | memset (loop, 0, sizeof (struct ev_loop)); |
1798 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1652 | |
|
|
1653 | loop_init (EV_A_ flags); |
1799 | loop_init (EV_A_ flags); |
1654 | |
1800 | |
1655 | if (ev_backend (EV_A)) |
1801 | if (ev_backend (EV_A)) |
1656 | return loop; |
1802 | return EV_A; |
1657 | |
1803 | |
1658 | return 0; |
1804 | return 0; |
1659 | } |
1805 | } |
1660 | |
1806 | |
1661 | void |
1807 | void |
… | |
… | |
1765 | assert (checkmax >= checkcnt); |
1911 | assert (checkmax >= checkcnt); |
1766 | array_verify (EV_A_ (W *)checks, checkcnt); |
1912 | array_verify (EV_A_ (W *)checks, checkcnt); |
1767 | |
1913 | |
1768 | # if 0 |
1914 | # if 0 |
1769 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1915 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1770 | for (signum = signalmax; signum--; ) if (signals [signum].gotsig) |
1916 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
1771 | # endif |
1917 | # endif |
1772 | #endif |
1918 | #endif |
1773 | } |
1919 | } |
1774 | #endif |
1920 | #endif |
1775 | |
1921 | |
… | |
… | |
1782 | #endif |
1928 | #endif |
1783 | { |
1929 | { |
1784 | if (!ev_default_loop_ptr) |
1930 | if (!ev_default_loop_ptr) |
1785 | { |
1931 | { |
1786 | #if EV_MULTIPLICITY |
1932 | #if EV_MULTIPLICITY |
1787 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1933 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
1788 | #else |
1934 | #else |
1789 | ev_default_loop_ptr = 1; |
1935 | ev_default_loop_ptr = 1; |
1790 | #endif |
1936 | #endif |
1791 | |
1937 | |
1792 | loop_init (EV_A_ flags); |
1938 | loop_init (EV_A_ flags); |
… | |
… | |
1809 | |
1955 | |
1810 | void |
1956 | void |
1811 | ev_default_destroy (void) |
1957 | ev_default_destroy (void) |
1812 | { |
1958 | { |
1813 | #if EV_MULTIPLICITY |
1959 | #if EV_MULTIPLICITY |
1814 | struct ev_loop *loop = ev_default_loop_ptr; |
1960 | EV_P = ev_default_loop_ptr; |
1815 | #endif |
1961 | #endif |
1816 | |
1962 | |
1817 | ev_default_loop_ptr = 0; |
1963 | ev_default_loop_ptr = 0; |
1818 | |
1964 | |
1819 | #ifndef _WIN32 |
1965 | #ifndef _WIN32 |
… | |
… | |
1826 | |
1972 | |
1827 | void |
1973 | void |
1828 | ev_default_fork (void) |
1974 | ev_default_fork (void) |
1829 | { |
1975 | { |
1830 | #if EV_MULTIPLICITY |
1976 | #if EV_MULTIPLICITY |
1831 | struct ev_loop *loop = ev_default_loop_ptr; |
1977 | EV_P = ev_default_loop_ptr; |
1832 | #endif |
1978 | #endif |
1833 | |
1979 | |
1834 | postfork = 1; /* must be in line with ev_loop_fork */ |
1980 | postfork = 1; /* must be in line with ev_loop_fork */ |
1835 | } |
1981 | } |
1836 | |
1982 | |
… | |
… | |
1838 | |
1984 | |
1839 | void |
1985 | void |
1840 | ev_invoke (EV_P_ void *w, int revents) |
1986 | ev_invoke (EV_P_ void *w, int revents) |
1841 | { |
1987 | { |
1842 | EV_CB_INVOKE ((W)w, revents); |
1988 | EV_CB_INVOKE ((W)w, revents); |
|
|
1989 | } |
|
|
1990 | |
|
|
1991 | unsigned int |
|
|
1992 | ev_pending_count (EV_P) |
|
|
1993 | { |
|
|
1994 | int pri; |
|
|
1995 | unsigned int count = 0; |
|
|
1996 | |
|
|
1997 | for (pri = NUMPRI; pri--; ) |
|
|
1998 | count += pendingcnt [pri]; |
|
|
1999 | |
|
|
2000 | return count; |
1843 | } |
2001 | } |
1844 | |
2002 | |
1845 | void noinline |
2003 | void noinline |
1846 | ev_invoke_pending (EV_P) |
2004 | ev_invoke_pending (EV_P) |
1847 | { |
2005 | { |
… | |
… | |
2019 | ANHE_at_cache (*he); |
2177 | ANHE_at_cache (*he); |
2020 | } |
2178 | } |
2021 | } |
2179 | } |
2022 | |
2180 | |
2023 | /* fetch new monotonic and realtime times from the kernel */ |
2181 | /* fetch new monotonic and realtime times from the kernel */ |
2024 | /* also detetc if there was a timejump, and act accordingly */ |
2182 | /* also detect if there was a timejump, and act accordingly */ |
2025 | inline_speed void |
2183 | inline_speed void |
2026 | time_update (EV_P_ ev_tstamp max_block) |
2184 | time_update (EV_P_ ev_tstamp max_block) |
2027 | { |
2185 | { |
2028 | #if EV_USE_MONOTONIC |
2186 | #if EV_USE_MONOTONIC |
2029 | if (expect_true (have_monotonic)) |
2187 | if (expect_true (have_monotonic)) |
… | |
… | |
2290 | inline_size void |
2448 | inline_size void |
2291 | wlist_del (WL *head, WL elem) |
2449 | wlist_del (WL *head, WL elem) |
2292 | { |
2450 | { |
2293 | while (*head) |
2451 | while (*head) |
2294 | { |
2452 | { |
2295 | if (*head == elem) |
2453 | if (expect_true (*head == elem)) |
2296 | { |
2454 | { |
2297 | *head = elem->next; |
2455 | *head = elem->next; |
2298 | return; |
2456 | break; |
2299 | } |
2457 | } |
2300 | |
2458 | |
2301 | head = &(*head)->next; |
2459 | head = &(*head)->next; |
2302 | } |
2460 | } |
2303 | } |
2461 | } |
… | |
… | |
2363 | |
2521 | |
2364 | if (expect_false (ev_is_active (w))) |
2522 | if (expect_false (ev_is_active (w))) |
2365 | return; |
2523 | return; |
2366 | |
2524 | |
2367 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
2525 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
2368 | assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2526 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2369 | |
2527 | |
2370 | EV_FREQUENT_CHECK; |
2528 | EV_FREQUENT_CHECK; |
2371 | |
2529 | |
2372 | ev_start (EV_A_ (W)w, 1); |
2530 | ev_start (EV_A_ (W)w, 1); |
2373 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2531 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
… | |
… | |
2443 | timers [active] = timers [timercnt + HEAP0]; |
2601 | timers [active] = timers [timercnt + HEAP0]; |
2444 | adjustheap (timers, timercnt, active); |
2602 | adjustheap (timers, timercnt, active); |
2445 | } |
2603 | } |
2446 | } |
2604 | } |
2447 | |
2605 | |
2448 | EV_FREQUENT_CHECK; |
|
|
2449 | |
|
|
2450 | ev_at (w) -= mn_now; |
2606 | ev_at (w) -= mn_now; |
2451 | |
2607 | |
2452 | ev_stop (EV_A_ (W)w); |
2608 | ev_stop (EV_A_ (W)w); |
|
|
2609 | |
|
|
2610 | EV_FREQUENT_CHECK; |
2453 | } |
2611 | } |
2454 | |
2612 | |
2455 | void noinline |
2613 | void noinline |
2456 | ev_timer_again (EV_P_ ev_timer *w) |
2614 | ev_timer_again (EV_P_ ev_timer *w) |
2457 | { |
2615 | { |
… | |
… | |
2475 | } |
2633 | } |
2476 | |
2634 | |
2477 | EV_FREQUENT_CHECK; |
2635 | EV_FREQUENT_CHECK; |
2478 | } |
2636 | } |
2479 | |
2637 | |
|
|
2638 | ev_tstamp |
|
|
2639 | ev_timer_remaining (EV_P_ ev_timer *w) |
|
|
2640 | { |
|
|
2641 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
|
|
2642 | } |
|
|
2643 | |
2480 | #if EV_PERIODIC_ENABLE |
2644 | #if EV_PERIODIC_ENABLE |
2481 | void noinline |
2645 | void noinline |
2482 | ev_periodic_start (EV_P_ ev_periodic *w) |
2646 | ev_periodic_start (EV_P_ ev_periodic *w) |
2483 | { |
2647 | { |
2484 | if (expect_false (ev_is_active (w))) |
2648 | if (expect_false (ev_is_active (w))) |
… | |
… | |
2530 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2694 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2531 | adjustheap (periodics, periodiccnt, active); |
2695 | adjustheap (periodics, periodiccnt, active); |
2532 | } |
2696 | } |
2533 | } |
2697 | } |
2534 | |
2698 | |
2535 | EV_FREQUENT_CHECK; |
|
|
2536 | |
|
|
2537 | ev_stop (EV_A_ (W)w); |
2699 | ev_stop (EV_A_ (W)w); |
|
|
2700 | |
|
|
2701 | EV_FREQUENT_CHECK; |
2538 | } |
2702 | } |
2539 | |
2703 | |
2540 | void noinline |
2704 | void noinline |
2541 | ev_periodic_again (EV_P_ ev_periodic *w) |
2705 | ev_periodic_again (EV_P_ ev_periodic *w) |
2542 | { |
2706 | { |
… | |
… | |
2551 | #endif |
2715 | #endif |
2552 | |
2716 | |
2553 | void noinline |
2717 | void noinline |
2554 | ev_signal_start (EV_P_ ev_signal *w) |
2718 | ev_signal_start (EV_P_ ev_signal *w) |
2555 | { |
2719 | { |
2556 | #if EV_MULTIPLICITY |
|
|
2557 | assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
2558 | #endif |
|
|
2559 | if (expect_false (ev_is_active (w))) |
2720 | if (expect_false (ev_is_active (w))) |
2560 | return; |
2721 | return; |
2561 | |
2722 | |
2562 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); |
2723 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
2563 | |
2724 | |
2564 | evpipe_init (EV_A); |
2725 | #if EV_MULTIPLICITY |
|
|
2726 | assert (("libev: a signal must not be attached to two different loops", |
|
|
2727 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
2565 | |
2728 | |
2566 | EV_FREQUENT_CHECK; |
2729 | signals [w->signum - 1].loop = EV_A; |
|
|
2730 | #endif |
2567 | |
2731 | |
|
|
2732 | EV_FREQUENT_CHECK; |
|
|
2733 | |
|
|
2734 | #if EV_USE_SIGNALFD |
|
|
2735 | if (sigfd == -2) |
2568 | { |
2736 | { |
2569 | #ifndef _WIN32 |
2737 | sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC); |
2570 | sigset_t full, prev; |
2738 | if (sigfd < 0 && errno == EINVAL) |
2571 | sigfillset (&full); |
2739 | sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */ |
2572 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2573 | #endif |
|
|
2574 | |
2740 | |
2575 | array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); |
2741 | if (sigfd >= 0) |
|
|
2742 | { |
|
|
2743 | fd_intern (sigfd); /* doing it twice will not hurt */ |
2576 | |
2744 | |
2577 | #ifndef _WIN32 |
2745 | sigemptyset (&sigfd_set); |
2578 | sigprocmask (SIG_SETMASK, &prev, 0); |
2746 | |
2579 | #endif |
2747 | ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ); |
|
|
2748 | ev_set_priority (&sigfd_w, EV_MAXPRI); |
|
|
2749 | ev_io_start (EV_A_ &sigfd_w); |
|
|
2750 | ev_unref (EV_A); /* signalfd watcher should not keep loop alive */ |
|
|
2751 | } |
2580 | } |
2752 | } |
|
|
2753 | |
|
|
2754 | if (sigfd >= 0) |
|
|
2755 | { |
|
|
2756 | /* TODO: check .head */ |
|
|
2757 | sigaddset (&sigfd_set, w->signum); |
|
|
2758 | sigprocmask (SIG_BLOCK, &sigfd_set, 0); |
|
|
2759 | |
|
|
2760 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2761 | } |
|
|
2762 | #endif |
2581 | |
2763 | |
2582 | ev_start (EV_A_ (W)w, 1); |
2764 | ev_start (EV_A_ (W)w, 1); |
2583 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2765 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2584 | |
2766 | |
2585 | if (!((WL)w)->next) |
2767 | if (!((WL)w)->next) |
|
|
2768 | # if EV_USE_SIGNALFD |
|
|
2769 | if (sigfd < 0) /*TODO*/ |
|
|
2770 | # endif |
2586 | { |
2771 | { |
2587 | #if _WIN32 |
2772 | # ifdef _WIN32 |
|
|
2773 | evpipe_init (EV_A); |
|
|
2774 | |
2588 | signal (w->signum, ev_sighandler); |
2775 | signal (w->signum, ev_sighandler); |
2589 | #else |
2776 | # else |
2590 | struct sigaction sa; |
2777 | struct sigaction sa; |
|
|
2778 | |
|
|
2779 | evpipe_init (EV_A); |
|
|
2780 | |
2591 | sa.sa_handler = ev_sighandler; |
2781 | sa.sa_handler = ev_sighandler; |
2592 | sigfillset (&sa.sa_mask); |
2782 | sigfillset (&sa.sa_mask); |
2593 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2783 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2594 | sigaction (w->signum, &sa, 0); |
2784 | sigaction (w->signum, &sa, 0); |
|
|
2785 | |
|
|
2786 | sigemptyset (&sa.sa_mask); |
|
|
2787 | sigaddset (&sa.sa_mask, w->signum); |
|
|
2788 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
2595 | #endif |
2789 | #endif |
2596 | } |
2790 | } |
2597 | |
2791 | |
2598 | EV_FREQUENT_CHECK; |
2792 | EV_FREQUENT_CHECK; |
2599 | } |
2793 | } |
2600 | |
2794 | |
2601 | void noinline |
2795 | void noinline |
… | |
… | |
2609 | |
2803 | |
2610 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2804 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2611 | ev_stop (EV_A_ (W)w); |
2805 | ev_stop (EV_A_ (W)w); |
2612 | |
2806 | |
2613 | if (!signals [w->signum - 1].head) |
2807 | if (!signals [w->signum - 1].head) |
|
|
2808 | { |
|
|
2809 | #if EV_MULTIPLICITY |
|
|
2810 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
|
|
2811 | #endif |
|
|
2812 | #if EV_USE_SIGNALFD |
|
|
2813 | if (sigfd >= 0) |
|
|
2814 | { |
|
|
2815 | sigset_t ss; |
|
|
2816 | |
|
|
2817 | sigemptyset (&ss); |
|
|
2818 | sigaddset (&ss, w->signum); |
|
|
2819 | sigdelset (&sigfd_set, w->signum); |
|
|
2820 | |
|
|
2821 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2822 | sigprocmask (SIG_UNBLOCK, &ss, 0); |
|
|
2823 | } |
|
|
2824 | else |
|
|
2825 | #endif |
2614 | signal (w->signum, SIG_DFL); |
2826 | signal (w->signum, SIG_DFL); |
|
|
2827 | } |
2615 | |
2828 | |
2616 | EV_FREQUENT_CHECK; |
2829 | EV_FREQUENT_CHECK; |
2617 | } |
2830 | } |
2618 | |
2831 | |
2619 | void |
2832 | void |
… | |
… | |
2660 | #define MIN_STAT_INTERVAL 0.1074891 |
2873 | #define MIN_STAT_INTERVAL 0.1074891 |
2661 | |
2874 | |
2662 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2875 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2663 | |
2876 | |
2664 | #if EV_USE_INOTIFY |
2877 | #if EV_USE_INOTIFY |
2665 | # define EV_INOTIFY_BUFSIZE 8192 |
2878 | |
|
|
2879 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
|
|
2880 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
2666 | |
2881 | |
2667 | static void noinline |
2882 | static void noinline |
2668 | infy_add (EV_P_ ev_stat *w) |
2883 | infy_add (EV_P_ ev_stat *w) |
2669 | { |
2884 | { |
2670 | 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); |
2885 | 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); |
2671 | |
2886 | |
2672 | if (w->wd < 0) |
2887 | if (w->wd >= 0) |
|
|
2888 | { |
|
|
2889 | struct statfs sfs; |
|
|
2890 | |
|
|
2891 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
2892 | /* unless the filesystem is known to be local, we therefore still poll */ |
|
|
2893 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2894 | |
|
|
2895 | if (!fs_2625) |
|
|
2896 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
2897 | else if (!statfs (w->path, &sfs) |
|
|
2898 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
2899 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2900 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2901 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2902 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2903 | || sfs.f_type == 0x58465342 /* xfs */)) |
|
|
2904 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
|
|
2905 | else |
|
|
2906 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
2673 | { |
2907 | } |
|
|
2908 | else |
|
|
2909 | { |
|
|
2910 | /* can't use inotify, continue to stat */ |
2674 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2911 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2675 | ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
|
|
2676 | |
2912 | |
2677 | /* monitor some parent directory for speedup hints */ |
2913 | /* if path is not there, monitor some parent directory for speedup hints */ |
2678 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2914 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2679 | /* but an efficiency issue only */ |
2915 | /* but an efficiency issue only */ |
2680 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2916 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2681 | { |
2917 | { |
2682 | char path [4096]; |
2918 | char path [4096]; |
… | |
… | |
2698 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2934 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2699 | } |
2935 | } |
2700 | } |
2936 | } |
2701 | |
2937 | |
2702 | if (w->wd >= 0) |
2938 | if (w->wd >= 0) |
2703 | { |
|
|
2704 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2939 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2705 | |
2940 | |
2706 | /* now local changes will be tracked by inotify, but remote changes won't */ |
2941 | /* now re-arm timer, if required */ |
2707 | /* unless the filesystem it known to be local, we therefore still poll */ |
2942 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2708 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2709 | struct statfs sfs; |
|
|
2710 | |
|
|
2711 | if (fs_2625 && !statfs (w->path, &sfs)) |
|
|
2712 | if (sfs.f_type == 0x1373 /* devfs */ |
|
|
2713 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2714 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2715 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2716 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2717 | || sfs.f_type == 0x58465342 /* xfs */) |
|
|
2718 | return; |
|
|
2719 | |
|
|
2720 | w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2721 | ev_timer_again (EV_A_ &w->timer); |
2943 | ev_timer_again (EV_A_ &w->timer); |
2722 | } |
2944 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
2723 | } |
2945 | } |
2724 | |
2946 | |
2725 | static void noinline |
2947 | static void noinline |
2726 | infy_del (EV_P_ ev_stat *w) |
2948 | infy_del (EV_P_ ev_stat *w) |
2727 | { |
2949 | { |
… | |
… | |
2772 | |
2994 | |
2773 | static void |
2995 | static void |
2774 | infy_cb (EV_P_ ev_io *w, int revents) |
2996 | infy_cb (EV_P_ ev_io *w, int revents) |
2775 | { |
2997 | { |
2776 | char buf [EV_INOTIFY_BUFSIZE]; |
2998 | char buf [EV_INOTIFY_BUFSIZE]; |
2777 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2778 | int ofs; |
2999 | int ofs; |
2779 | int len = read (fs_fd, buf, sizeof (buf)); |
3000 | int len = read (fs_fd, buf, sizeof (buf)); |
2780 | |
3001 | |
2781 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
3002 | for (ofs = 0; ofs < len; ) |
|
|
3003 | { |
|
|
3004 | struct inotify_event *ev = (struct inotify_event *)(buf + ofs); |
2782 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3005 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
3006 | ofs += sizeof (struct inotify_event) + ev->len; |
|
|
3007 | } |
|
|
3008 | } |
|
|
3009 | |
|
|
3010 | inline_size unsigned int |
|
|
3011 | ev_linux_version (void) |
|
|
3012 | { |
|
|
3013 | struct utsname buf; |
|
|
3014 | unsigned int v; |
|
|
3015 | int i; |
|
|
3016 | char *p = buf.release; |
|
|
3017 | |
|
|
3018 | if (uname (&buf)) |
|
|
3019 | return 0; |
|
|
3020 | |
|
|
3021 | for (i = 3+1; --i; ) |
|
|
3022 | { |
|
|
3023 | unsigned int c = 0; |
|
|
3024 | |
|
|
3025 | for (;;) |
|
|
3026 | { |
|
|
3027 | if (*p >= '0' && *p <= '9') |
|
|
3028 | c = c * 10 + *p++ - '0'; |
|
|
3029 | else |
|
|
3030 | { |
|
|
3031 | p += *p == '.'; |
|
|
3032 | break; |
|
|
3033 | } |
|
|
3034 | } |
|
|
3035 | |
|
|
3036 | v = (v << 8) | c; |
|
|
3037 | } |
|
|
3038 | |
|
|
3039 | return v; |
2783 | } |
3040 | } |
2784 | |
3041 | |
2785 | inline_size void |
3042 | inline_size void |
2786 | check_2625 (EV_P) |
3043 | ev_check_2625 (EV_P) |
2787 | { |
3044 | { |
2788 | /* kernels < 2.6.25 are borked |
3045 | /* kernels < 2.6.25 are borked |
2789 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
3046 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
2790 | */ |
3047 | */ |
2791 | struct utsname buf; |
3048 | if (ev_linux_version () < 0x020619) |
2792 | int major, minor, micro; |
|
|
2793 | |
|
|
2794 | if (uname (&buf)) |
|
|
2795 | return; |
3049 | return; |
2796 | |
3050 | |
2797 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
|
|
2798 | return; |
|
|
2799 | |
|
|
2800 | if (major < 2 |
|
|
2801 | || (major == 2 && minor < 6) |
|
|
2802 | || (major == 2 && minor == 6 && micro < 25)) |
|
|
2803 | return; |
|
|
2804 | |
|
|
2805 | fs_2625 = 1; |
3051 | fs_2625 = 1; |
|
|
3052 | } |
|
|
3053 | |
|
|
3054 | inline_size int |
|
|
3055 | infy_newfd (void) |
|
|
3056 | { |
|
|
3057 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
|
|
3058 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
|
|
3059 | if (fd >= 0) |
|
|
3060 | return fd; |
|
|
3061 | #endif |
|
|
3062 | return inotify_init (); |
2806 | } |
3063 | } |
2807 | |
3064 | |
2808 | inline_size void |
3065 | inline_size void |
2809 | infy_init (EV_P) |
3066 | infy_init (EV_P) |
2810 | { |
3067 | { |
2811 | if (fs_fd != -2) |
3068 | if (fs_fd != -2) |
2812 | return; |
3069 | return; |
2813 | |
3070 | |
2814 | fs_fd = -1; |
3071 | fs_fd = -1; |
2815 | |
3072 | |
2816 | check_2625 (EV_A); |
3073 | ev_check_2625 (EV_A); |
2817 | |
3074 | |
2818 | fs_fd = inotify_init (); |
3075 | fs_fd = infy_newfd (); |
2819 | |
3076 | |
2820 | if (fs_fd >= 0) |
3077 | if (fs_fd >= 0) |
2821 | { |
3078 | { |
|
|
3079 | fd_intern (fs_fd); |
2822 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
3080 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
2823 | ev_set_priority (&fs_w, EV_MAXPRI); |
3081 | ev_set_priority (&fs_w, EV_MAXPRI); |
2824 | ev_io_start (EV_A_ &fs_w); |
3082 | ev_io_start (EV_A_ &fs_w); |
|
|
3083 | ev_unref (EV_A); |
2825 | } |
3084 | } |
2826 | } |
3085 | } |
2827 | |
3086 | |
2828 | inline_size void |
3087 | inline_size void |
2829 | infy_fork (EV_P) |
3088 | infy_fork (EV_P) |
… | |
… | |
2831 | int slot; |
3090 | int slot; |
2832 | |
3091 | |
2833 | if (fs_fd < 0) |
3092 | if (fs_fd < 0) |
2834 | return; |
3093 | return; |
2835 | |
3094 | |
|
|
3095 | ev_ref (EV_A); |
|
|
3096 | ev_io_stop (EV_A_ &fs_w); |
2836 | close (fs_fd); |
3097 | close (fs_fd); |
2837 | fs_fd = inotify_init (); |
3098 | fs_fd = infy_newfd (); |
|
|
3099 | |
|
|
3100 | if (fs_fd >= 0) |
|
|
3101 | { |
|
|
3102 | fd_intern (fs_fd); |
|
|
3103 | ev_io_set (&fs_w, fs_fd, EV_READ); |
|
|
3104 | ev_io_start (EV_A_ &fs_w); |
|
|
3105 | ev_unref (EV_A); |
|
|
3106 | } |
2838 | |
3107 | |
2839 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3108 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2840 | { |
3109 | { |
2841 | WL w_ = fs_hash [slot].head; |
3110 | WL w_ = fs_hash [slot].head; |
2842 | fs_hash [slot].head = 0; |
3111 | fs_hash [slot].head = 0; |
… | |
… | |
2849 | w->wd = -1; |
3118 | w->wd = -1; |
2850 | |
3119 | |
2851 | if (fs_fd >= 0) |
3120 | if (fs_fd >= 0) |
2852 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3121 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2853 | else |
3122 | else |
|
|
3123 | { |
|
|
3124 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3125 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2854 | ev_timer_again (EV_A_ &w->timer); |
3126 | ev_timer_again (EV_A_ &w->timer); |
|
|
3127 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
|
|
3128 | } |
2855 | } |
3129 | } |
2856 | } |
3130 | } |
2857 | } |
3131 | } |
2858 | |
3132 | |
2859 | #endif |
3133 | #endif |
… | |
… | |
2876 | static void noinline |
3150 | static void noinline |
2877 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3151 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
2878 | { |
3152 | { |
2879 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3153 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
2880 | |
3154 | |
2881 | /* we copy this here each the time so that */ |
3155 | ev_statdata prev = w->attr; |
2882 | /* prev has the old value when the callback gets invoked */ |
|
|
2883 | w->prev = w->attr; |
|
|
2884 | ev_stat_stat (EV_A_ w); |
3156 | ev_stat_stat (EV_A_ w); |
2885 | |
3157 | |
2886 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
3158 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
2887 | if ( |
3159 | if ( |
2888 | w->prev.st_dev != w->attr.st_dev |
3160 | prev.st_dev != w->attr.st_dev |
2889 | || w->prev.st_ino != w->attr.st_ino |
3161 | || prev.st_ino != w->attr.st_ino |
2890 | || w->prev.st_mode != w->attr.st_mode |
3162 | || prev.st_mode != w->attr.st_mode |
2891 | || w->prev.st_nlink != w->attr.st_nlink |
3163 | || prev.st_nlink != w->attr.st_nlink |
2892 | || w->prev.st_uid != w->attr.st_uid |
3164 | || prev.st_uid != w->attr.st_uid |
2893 | || w->prev.st_gid != w->attr.st_gid |
3165 | || prev.st_gid != w->attr.st_gid |
2894 | || w->prev.st_rdev != w->attr.st_rdev |
3166 | || prev.st_rdev != w->attr.st_rdev |
2895 | || w->prev.st_size != w->attr.st_size |
3167 | || prev.st_size != w->attr.st_size |
2896 | || w->prev.st_atime != w->attr.st_atime |
3168 | || prev.st_atime != w->attr.st_atime |
2897 | || w->prev.st_mtime != w->attr.st_mtime |
3169 | || prev.st_mtime != w->attr.st_mtime |
2898 | || w->prev.st_ctime != w->attr.st_ctime |
3170 | || prev.st_ctime != w->attr.st_ctime |
2899 | ) { |
3171 | ) { |
|
|
3172 | /* we only update w->prev on actual differences */ |
|
|
3173 | /* in case we test more often than invoke the callback, */ |
|
|
3174 | /* to ensure that prev is always different to attr */ |
|
|
3175 | w->prev = prev; |
|
|
3176 | |
2900 | #if EV_USE_INOTIFY |
3177 | #if EV_USE_INOTIFY |
2901 | if (fs_fd >= 0) |
3178 | if (fs_fd >= 0) |
2902 | { |
3179 | { |
2903 | infy_del (EV_A_ w); |
3180 | infy_del (EV_A_ w); |
2904 | infy_add (EV_A_ w); |
3181 | infy_add (EV_A_ w); |
… | |
… | |
2929 | |
3206 | |
2930 | if (fs_fd >= 0) |
3207 | if (fs_fd >= 0) |
2931 | infy_add (EV_A_ w); |
3208 | infy_add (EV_A_ w); |
2932 | else |
3209 | else |
2933 | #endif |
3210 | #endif |
|
|
3211 | { |
2934 | ev_timer_again (EV_A_ &w->timer); |
3212 | ev_timer_again (EV_A_ &w->timer); |
|
|
3213 | ev_unref (EV_A); |
|
|
3214 | } |
2935 | |
3215 | |
2936 | ev_start (EV_A_ (W)w, 1); |
3216 | ev_start (EV_A_ (W)w, 1); |
2937 | |
3217 | |
2938 | EV_FREQUENT_CHECK; |
3218 | EV_FREQUENT_CHECK; |
2939 | } |
3219 | } |
… | |
… | |
2948 | EV_FREQUENT_CHECK; |
3228 | EV_FREQUENT_CHECK; |
2949 | |
3229 | |
2950 | #if EV_USE_INOTIFY |
3230 | #if EV_USE_INOTIFY |
2951 | infy_del (EV_A_ w); |
3231 | infy_del (EV_A_ w); |
2952 | #endif |
3232 | #endif |
|
|
3233 | |
|
|
3234 | if (ev_is_active (&w->timer)) |
|
|
3235 | { |
|
|
3236 | ev_ref (EV_A); |
2953 | ev_timer_stop (EV_A_ &w->timer); |
3237 | ev_timer_stop (EV_A_ &w->timer); |
|
|
3238 | } |
2954 | |
3239 | |
2955 | ev_stop (EV_A_ (W)w); |
3240 | ev_stop (EV_A_ (W)w); |
2956 | |
3241 | |
2957 | EV_FREQUENT_CHECK; |
3242 | EV_FREQUENT_CHECK; |
2958 | } |
3243 | } |
… | |
… | |
3099 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3384 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3100 | { |
3385 | { |
3101 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
3386 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
3102 | |
3387 | |
3103 | { |
3388 | { |
3104 | struct ev_loop *loop = w->other; |
3389 | EV_P = w->other; |
3105 | |
3390 | |
3106 | while (fdchangecnt) |
3391 | while (fdchangecnt) |
3107 | { |
3392 | { |
3108 | fd_reify (EV_A); |
3393 | fd_reify (EV_A); |
3109 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3394 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
… | |
… | |
3117 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
3402 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
3118 | |
3403 | |
3119 | ev_embed_stop (EV_A_ w); |
3404 | ev_embed_stop (EV_A_ w); |
3120 | |
3405 | |
3121 | { |
3406 | { |
3122 | struct ev_loop *loop = w->other; |
3407 | EV_P = w->other; |
3123 | |
3408 | |
3124 | ev_loop_fork (EV_A); |
3409 | ev_loop_fork (EV_A); |
3125 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3410 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3126 | } |
3411 | } |
3127 | |
3412 | |
… | |
… | |
3141 | { |
3426 | { |
3142 | if (expect_false (ev_is_active (w))) |
3427 | if (expect_false (ev_is_active (w))) |
3143 | return; |
3428 | return; |
3144 | |
3429 | |
3145 | { |
3430 | { |
3146 | struct ev_loop *loop = w->other; |
3431 | EV_P = w->other; |
3147 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3432 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3148 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3433 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3149 | } |
3434 | } |
3150 | |
3435 | |
3151 | EV_FREQUENT_CHECK; |
3436 | EV_FREQUENT_CHECK; |
… | |
… | |
3178 | |
3463 | |
3179 | ev_io_stop (EV_A_ &w->io); |
3464 | ev_io_stop (EV_A_ &w->io); |
3180 | ev_prepare_stop (EV_A_ &w->prepare); |
3465 | ev_prepare_stop (EV_A_ &w->prepare); |
3181 | ev_fork_stop (EV_A_ &w->fork); |
3466 | ev_fork_stop (EV_A_ &w->fork); |
3182 | |
3467 | |
|
|
3468 | ev_stop (EV_A_ (W)w); |
|
|
3469 | |
3183 | EV_FREQUENT_CHECK; |
3470 | EV_FREQUENT_CHECK; |
3184 | } |
3471 | } |
3185 | #endif |
3472 | #endif |
3186 | |
3473 | |
3187 | #if EV_FORK_ENABLE |
3474 | #if EV_FORK_ENABLE |
… | |
… | |
3263 | |
3550 | |
3264 | void |
3551 | void |
3265 | ev_async_send (EV_P_ ev_async *w) |
3552 | ev_async_send (EV_P_ ev_async *w) |
3266 | { |
3553 | { |
3267 | w->sent = 1; |
3554 | w->sent = 1; |
3268 | evpipe_write (EV_A_ &gotasync); |
3555 | evpipe_write (EV_A_ &async_pending); |
3269 | } |
3556 | } |
3270 | #endif |
3557 | #endif |
3271 | |
3558 | |
3272 | /*****************************************************************************/ |
3559 | /*****************************************************************************/ |
3273 | |
3560 | |
… | |
… | |
3422 | if (types & EV_CHECK) |
3709 | if (types & EV_CHECK) |
3423 | for (i = checkcnt; i--; ) |
3710 | for (i = checkcnt; i--; ) |
3424 | cb (EV_A_ EV_CHECK, checks [i]); |
3711 | cb (EV_A_ EV_CHECK, checks [i]); |
3425 | |
3712 | |
3426 | if (types & EV_SIGNAL) |
3713 | if (types & EV_SIGNAL) |
3427 | for (i = 0; i < signalmax; ++i) |
3714 | for (i = 0; i < EV_NSIG - 1; ++i) |
3428 | for (wl = signals [i].head; wl; ) |
3715 | for (wl = signals [i].head; wl; ) |
3429 | { |
3716 | { |
3430 | wn = wl->next; |
3717 | wn = wl->next; |
3431 | cb (EV_A_ EV_SIGNAL, wl); |
3718 | cb (EV_A_ EV_SIGNAL, wl); |
3432 | wl = wn; |
3719 | wl = wn; |