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 |
… | |
… | |
153 | |
153 | |
154 | #endif |
154 | #endif |
155 | |
155 | |
156 | #include <math.h> |
156 | #include <math.h> |
157 | #include <stdlib.h> |
157 | #include <stdlib.h> |
|
|
158 | #include <string.h> |
158 | #include <fcntl.h> |
159 | #include <fcntl.h> |
159 | #include <stddef.h> |
160 | #include <stddef.h> |
160 | |
161 | |
161 | #include <stdio.h> |
162 | #include <stdio.h> |
162 | |
163 | |
163 | #include <assert.h> |
164 | #include <assert.h> |
164 | #include <errno.h> |
165 | #include <errno.h> |
165 | #include <sys/types.h> |
166 | #include <sys/types.h> |
166 | #include <time.h> |
167 | #include <time.h> |
|
|
168 | #include <limits.h> |
167 | |
169 | |
168 | #include <signal.h> |
170 | #include <signal.h> |
169 | |
171 | |
170 | #ifdef EV_H |
172 | #ifdef EV_H |
171 | # include EV_H |
173 | # include EV_H |
… | |
… | |
182 | # define WIN32_LEAN_AND_MEAN |
184 | # define WIN32_LEAN_AND_MEAN |
183 | # include <windows.h> |
185 | # include <windows.h> |
184 | # ifndef EV_SELECT_IS_WINSOCKET |
186 | # ifndef EV_SELECT_IS_WINSOCKET |
185 | # define EV_SELECT_IS_WINSOCKET 1 |
187 | # define EV_SELECT_IS_WINSOCKET 1 |
186 | # endif |
188 | # endif |
|
|
189 | # undef EV_AVOID_STDIO |
187 | #endif |
190 | #endif |
188 | |
191 | |
189 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
192 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
190 | |
193 | |
191 | /* try to deduce the maximum number of signals on this platform */ |
194 | /* try to deduce the maximum number of signals on this platform */ |
… | |
… | |
204 | #elif defined (MAXSIG) |
207 | #elif defined (MAXSIG) |
205 | # define EV_NSIG (MAXSIG+1) |
208 | # define EV_NSIG (MAXSIG+1) |
206 | #elif defined (MAX_SIG) |
209 | #elif defined (MAX_SIG) |
207 | # define EV_NSIG (MAX_SIG+1) |
210 | # define EV_NSIG (MAX_SIG+1) |
208 | #elif defined (SIGARRAYSIZE) |
211 | #elif defined (SIGARRAYSIZE) |
209 | # define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */ |
212 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
210 | #elif defined (_sys_nsig) |
213 | #elif defined (_sys_nsig) |
211 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
214 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
212 | #else |
215 | #else |
213 | # error "unable to find value for NSIG, please report" |
216 | # error "unable to find value for NSIG, please report" |
214 | /* to make it compile regardless, just remove the above line */ |
217 | /* to make it compile regardless, just remove the above line, */ |
|
|
218 | /* but consider reporting it, too! :) */ |
215 | # define EV_NSIG 65 |
219 | # define EV_NSIG 65 |
216 | #endif |
220 | #endif |
217 | |
221 | |
218 | #ifndef EV_USE_CLOCK_SYSCALL |
222 | #ifndef EV_USE_CLOCK_SYSCALL |
219 | # if __linux && __GLIBC__ >= 2 |
223 | # if __linux && __GLIBC__ >= 2 |
220 | # define EV_USE_CLOCK_SYSCALL 1 |
224 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
221 | # else |
225 | # else |
222 | # define EV_USE_CLOCK_SYSCALL 0 |
226 | # define EV_USE_CLOCK_SYSCALL 0 |
223 | # endif |
227 | # endif |
224 | #endif |
228 | #endif |
225 | |
229 | |
226 | #ifndef EV_USE_MONOTONIC |
230 | #ifndef EV_USE_MONOTONIC |
227 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
231 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
228 | # define EV_USE_MONOTONIC 1 |
232 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
229 | # else |
233 | # else |
230 | # define EV_USE_MONOTONIC 0 |
234 | # define EV_USE_MONOTONIC 0 |
231 | # endif |
235 | # endif |
232 | #endif |
236 | #endif |
233 | |
237 | |
… | |
… | |
235 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
239 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
236 | #endif |
240 | #endif |
237 | |
241 | |
238 | #ifndef EV_USE_NANOSLEEP |
242 | #ifndef EV_USE_NANOSLEEP |
239 | # if _POSIX_C_SOURCE >= 199309L |
243 | # if _POSIX_C_SOURCE >= 199309L |
240 | # define EV_USE_NANOSLEEP 1 |
244 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
241 | # else |
245 | # else |
242 | # define EV_USE_NANOSLEEP 0 |
246 | # define EV_USE_NANOSLEEP 0 |
243 | # endif |
247 | # endif |
244 | #endif |
248 | #endif |
245 | |
249 | |
246 | #ifndef EV_USE_SELECT |
250 | #ifndef EV_USE_SELECT |
247 | # define EV_USE_SELECT 1 |
251 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
248 | #endif |
252 | #endif |
249 | |
253 | |
250 | #ifndef EV_USE_POLL |
254 | #ifndef EV_USE_POLL |
251 | # ifdef _WIN32 |
255 | # ifdef _WIN32 |
252 | # define EV_USE_POLL 0 |
256 | # define EV_USE_POLL 0 |
253 | # else |
257 | # else |
254 | # define EV_USE_POLL 1 |
258 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
255 | # endif |
259 | # endif |
256 | #endif |
260 | #endif |
257 | |
261 | |
258 | #ifndef EV_USE_EPOLL |
262 | #ifndef EV_USE_EPOLL |
259 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
263 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
260 | # define EV_USE_EPOLL 1 |
264 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
261 | # else |
265 | # else |
262 | # define EV_USE_EPOLL 0 |
266 | # define EV_USE_EPOLL 0 |
263 | # endif |
267 | # endif |
264 | #endif |
268 | #endif |
265 | |
269 | |
… | |
… | |
271 | # define EV_USE_PORT 0 |
275 | # define EV_USE_PORT 0 |
272 | #endif |
276 | #endif |
273 | |
277 | |
274 | #ifndef EV_USE_INOTIFY |
278 | #ifndef EV_USE_INOTIFY |
275 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
279 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
276 | # define EV_USE_INOTIFY 1 |
280 | # define EV_USE_INOTIFY EV_FEATURE_OS |
277 | # else |
281 | # else |
278 | # define EV_USE_INOTIFY 0 |
282 | # define EV_USE_INOTIFY 0 |
279 | # endif |
283 | # endif |
280 | #endif |
284 | #endif |
281 | |
285 | |
282 | #ifndef EV_PID_HASHSIZE |
286 | #ifndef EV_PID_HASHSIZE |
283 | # if EV_MINIMAL |
287 | # define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
284 | # define EV_PID_HASHSIZE 1 |
|
|
285 | # else |
|
|
286 | # define EV_PID_HASHSIZE 16 |
|
|
287 | # endif |
|
|
288 | #endif |
288 | #endif |
289 | |
289 | |
290 | #ifndef EV_INOTIFY_HASHSIZE |
290 | #ifndef EV_INOTIFY_HASHSIZE |
291 | # if EV_MINIMAL |
291 | # define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
292 | # define EV_INOTIFY_HASHSIZE 1 |
|
|
293 | # else |
|
|
294 | # define EV_INOTIFY_HASHSIZE 16 |
|
|
295 | # endif |
|
|
296 | #endif |
292 | #endif |
297 | |
293 | |
298 | #ifndef EV_USE_EVENTFD |
294 | #ifndef EV_USE_EVENTFD |
299 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
295 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
300 | # define EV_USE_EVENTFD 1 |
296 | # define EV_USE_EVENTFD EV_FEATURE_OS |
301 | # else |
297 | # else |
302 | # define EV_USE_EVENTFD 0 |
298 | # define EV_USE_EVENTFD 0 |
303 | # endif |
299 | # endif |
304 | #endif |
300 | #endif |
305 | |
301 | |
306 | #ifndef EV_USE_SIGNALFD |
302 | #ifndef EV_USE_SIGNALFD |
307 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 9)) |
303 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
308 | # define EV_USE_SIGNALFD 1 |
304 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
309 | # else |
305 | # else |
310 | # define EV_USE_SIGNALFD 0 |
306 | # define EV_USE_SIGNALFD 0 |
311 | # endif |
307 | # endif |
312 | #endif |
308 | #endif |
313 | |
309 | |
… | |
… | |
316 | # define EV_USE_4HEAP 1 |
312 | # define EV_USE_4HEAP 1 |
317 | # define EV_HEAP_CACHE_AT 1 |
313 | # define EV_HEAP_CACHE_AT 1 |
318 | #endif |
314 | #endif |
319 | |
315 | |
320 | #ifndef EV_VERIFY |
316 | #ifndef EV_VERIFY |
321 | # define EV_VERIFY !EV_MINIMAL |
317 | # define EV_VERIFY (EV_FEATURE_API ? 1 : 0) |
322 | #endif |
318 | #endif |
323 | |
319 | |
324 | #ifndef EV_USE_4HEAP |
320 | #ifndef EV_USE_4HEAP |
325 | # define EV_USE_4HEAP !EV_MINIMAL |
321 | # define EV_USE_4HEAP EV_FEATURE_DATA |
326 | #endif |
322 | #endif |
327 | |
323 | |
328 | #ifndef EV_HEAP_CACHE_AT |
324 | #ifndef EV_HEAP_CACHE_AT |
329 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
325 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
330 | #endif |
326 | #endif |
331 | |
327 | |
332 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
328 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
333 | /* which makes programs even slower. might work on other unices, too. */ |
329 | /* which makes programs even slower. might work on other unices, too. */ |
334 | #if EV_USE_CLOCK_SYSCALL |
330 | #if EV_USE_CLOCK_SYSCALL |
… | |
… | |
343 | # endif |
339 | # endif |
344 | #endif |
340 | #endif |
345 | |
341 | |
346 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
342 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
347 | |
343 | |
|
|
344 | #ifdef _AIX |
|
|
345 | /* AIX has a completely broken poll.h header */ |
|
|
346 | # undef EV_USE_POLL |
|
|
347 | # define EV_USE_POLL 0 |
|
|
348 | #endif |
|
|
349 | |
348 | #ifndef CLOCK_MONOTONIC |
350 | #ifndef CLOCK_MONOTONIC |
349 | # undef EV_USE_MONOTONIC |
351 | # undef EV_USE_MONOTONIC |
350 | # define EV_USE_MONOTONIC 0 |
352 | # define EV_USE_MONOTONIC 0 |
351 | #endif |
353 | #endif |
352 | |
354 | |
… | |
… | |
386 | # include <stdint.h> |
388 | # include <stdint.h> |
387 | # ifndef EFD_NONBLOCK |
389 | # ifndef EFD_NONBLOCK |
388 | # define EFD_NONBLOCK O_NONBLOCK |
390 | # define EFD_NONBLOCK O_NONBLOCK |
389 | # endif |
391 | # endif |
390 | # ifndef EFD_CLOEXEC |
392 | # ifndef EFD_CLOEXEC |
|
|
393 | # ifdef O_CLOEXEC |
391 | # define EFD_CLOEXEC O_CLOEXEC |
394 | # define EFD_CLOEXEC O_CLOEXEC |
|
|
395 | # else |
|
|
396 | # define EFD_CLOEXEC 02000000 |
|
|
397 | # endif |
392 | # endif |
398 | # endif |
393 | # ifdef __cplusplus |
399 | # ifdef __cplusplus |
394 | extern "C" { |
400 | extern "C" { |
395 | # endif |
401 | # endif |
396 | int eventfd (unsigned int initval, int flags); |
402 | int (eventfd) (unsigned int initval, int flags); |
397 | # ifdef __cplusplus |
403 | # ifdef __cplusplus |
398 | } |
404 | } |
399 | # endif |
405 | # endif |
400 | #endif |
406 | #endif |
401 | |
407 | |
402 | #if EV_USE_SIGNALFD |
408 | #if EV_USE_SIGNALFD |
403 | # include <sys/signalfd.h> |
409 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
|
|
410 | # include <stdint.h> |
|
|
411 | # ifndef SFD_NONBLOCK |
|
|
412 | # define SFD_NONBLOCK O_NONBLOCK |
404 | #endif |
413 | # endif |
|
|
414 | # ifndef SFD_CLOEXEC |
|
|
415 | # ifdef O_CLOEXEC |
|
|
416 | # define SFD_CLOEXEC O_CLOEXEC |
|
|
417 | # else |
|
|
418 | # define SFD_CLOEXEC 02000000 |
|
|
419 | # endif |
|
|
420 | # endif |
|
|
421 | # ifdef __cplusplus |
|
|
422 | extern "C" { |
|
|
423 | # endif |
|
|
424 | int signalfd (int fd, const sigset_t *mask, int flags); |
|
|
425 | |
|
|
426 | struct signalfd_siginfo |
|
|
427 | { |
|
|
428 | uint32_t ssi_signo; |
|
|
429 | char pad[128 - sizeof (uint32_t)]; |
|
|
430 | }; |
|
|
431 | # ifdef __cplusplus |
|
|
432 | } |
|
|
433 | # endif |
|
|
434 | #endif |
|
|
435 | |
405 | |
436 | |
406 | /**/ |
437 | /**/ |
407 | |
438 | |
408 | #if EV_VERIFY >= 3 |
439 | #if EV_VERIFY >= 3 |
409 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
440 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
… | |
… | |
421 | */ |
452 | */ |
422 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
453 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
423 | |
454 | |
424 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
455 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
425 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
456 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
426 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
|
|
427 | |
457 | |
428 | #if __GNUC__ >= 4 |
458 | #if __GNUC__ >= 4 |
429 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
459 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
430 | # define noinline __attribute__ ((noinline)) |
460 | # define noinline __attribute__ ((noinline)) |
431 | #else |
461 | #else |
… | |
… | |
438 | |
468 | |
439 | #define expect_false(expr) expect ((expr) != 0, 0) |
469 | #define expect_false(expr) expect ((expr) != 0, 0) |
440 | #define expect_true(expr) expect ((expr) != 0, 1) |
470 | #define expect_true(expr) expect ((expr) != 0, 1) |
441 | #define inline_size static inline |
471 | #define inline_size static inline |
442 | |
472 | |
443 | #if EV_MINIMAL |
473 | #if EV_FEATURE_CODE |
|
|
474 | # define inline_speed static inline |
|
|
475 | #else |
444 | # define inline_speed static noinline |
476 | # define inline_speed static noinline |
445 | #else |
|
|
446 | # define inline_speed static inline |
|
|
447 | #endif |
477 | #endif |
448 | |
478 | |
449 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
479 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
450 | |
480 | |
451 | #if EV_MINPRI == EV_MAXPRI |
481 | #if EV_MINPRI == EV_MAXPRI |
… | |
… | |
472 | |
502 | |
473 | #if EV_USE_MONOTONIC |
503 | #if EV_USE_MONOTONIC |
474 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
504 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
475 | #endif |
505 | #endif |
476 | |
506 | |
|
|
507 | #ifndef EV_FD_TO_WIN32_HANDLE |
|
|
508 | # define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
|
|
509 | #endif |
|
|
510 | #ifndef EV_WIN32_HANDLE_TO_FD |
|
|
511 | # define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0) |
|
|
512 | #endif |
|
|
513 | #ifndef EV_WIN32_CLOSE_FD |
|
|
514 | # define EV_WIN32_CLOSE_FD(fd) close (fd) |
|
|
515 | #endif |
|
|
516 | |
477 | #ifdef _WIN32 |
517 | #ifdef _WIN32 |
478 | # include "ev_win32.c" |
518 | # include "ev_win32.c" |
479 | #endif |
519 | #endif |
480 | |
520 | |
481 | /*****************************************************************************/ |
521 | /*****************************************************************************/ |
|
|
522 | |
|
|
523 | #if EV_AVOID_STDIO |
|
|
524 | static void noinline |
|
|
525 | ev_printerr (const char *msg) |
|
|
526 | { |
|
|
527 | write (STDERR_FILENO, msg, strlen (msg)); |
|
|
528 | } |
|
|
529 | #endif |
482 | |
530 | |
483 | static void (*syserr_cb)(const char *msg); |
531 | static void (*syserr_cb)(const char *msg); |
484 | |
532 | |
485 | void |
533 | void |
486 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
534 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
… | |
… | |
496 | |
544 | |
497 | if (syserr_cb) |
545 | if (syserr_cb) |
498 | syserr_cb (msg); |
546 | syserr_cb (msg); |
499 | else |
547 | else |
500 | { |
548 | { |
|
|
549 | #if EV_AVOID_STDIO |
|
|
550 | const char *err = strerror (errno); |
|
|
551 | |
|
|
552 | ev_printerr (msg); |
|
|
553 | ev_printerr (": "); |
|
|
554 | ev_printerr (err); |
|
|
555 | ev_printerr ("\n"); |
|
|
556 | #else |
501 | perror (msg); |
557 | perror (msg); |
|
|
558 | #endif |
502 | abort (); |
559 | abort (); |
503 | } |
560 | } |
504 | } |
561 | } |
505 | |
562 | |
506 | static void * |
563 | static void * |
507 | ev_realloc_emul (void *ptr, long size) |
564 | ev_realloc_emul (void *ptr, long size) |
508 | { |
565 | { |
|
|
566 | #if __GLIBC__ |
|
|
567 | return realloc (ptr, size); |
|
|
568 | #else |
509 | /* some systems, notably openbsd and darwin, fail to properly |
569 | /* some systems, notably openbsd and darwin, fail to properly |
510 | * implement realloc (x, 0) (as required by both ansi c-98 and |
570 | * implement realloc (x, 0) (as required by both ansi c-89 and |
511 | * the single unix specification, so work around them here. |
571 | * the single unix specification, so work around them here. |
512 | */ |
572 | */ |
513 | |
573 | |
514 | if (size) |
574 | if (size) |
515 | return realloc (ptr, size); |
575 | return realloc (ptr, size); |
516 | |
576 | |
517 | free (ptr); |
577 | free (ptr); |
518 | return 0; |
578 | return 0; |
|
|
579 | #endif |
519 | } |
580 | } |
520 | |
581 | |
521 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
582 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
522 | |
583 | |
523 | void |
584 | void |
… | |
… | |
531 | { |
592 | { |
532 | ptr = alloc (ptr, size); |
593 | ptr = alloc (ptr, size); |
533 | |
594 | |
534 | if (!ptr && size) |
595 | if (!ptr && size) |
535 | { |
596 | { |
|
|
597 | #if EV_AVOID_STDIO |
|
|
598 | ev_printerr ("libev: memory allocation failed, aborting.\n"); |
|
|
599 | #else |
536 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
600 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
|
|
601 | #endif |
537 | abort (); |
602 | abort (); |
538 | } |
603 | } |
539 | |
604 | |
540 | return ptr; |
605 | return ptr; |
541 | } |
606 | } |
… | |
… | |
623 | |
688 | |
624 | static int ev_default_loop_ptr; |
689 | static int ev_default_loop_ptr; |
625 | |
690 | |
626 | #endif |
691 | #endif |
627 | |
692 | |
628 | #if EV_MINIMAL < 2 |
693 | #if EV_FEATURE_API |
629 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
694 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
630 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
695 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
631 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
696 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
632 | #else |
697 | #else |
633 | # define EV_RELEASE_CB (void)0 |
698 | # define EV_RELEASE_CB (void)0 |
… | |
… | |
818 | } |
883 | } |
819 | |
884 | |
820 | /*****************************************************************************/ |
885 | /*****************************************************************************/ |
821 | |
886 | |
822 | inline_speed void |
887 | inline_speed void |
823 | fd_event_nc (EV_P_ int fd, int revents) |
888 | fd_event_nocheck (EV_P_ int fd, int revents) |
824 | { |
889 | { |
825 | ANFD *anfd = anfds + fd; |
890 | ANFD *anfd = anfds + fd; |
826 | ev_io *w; |
891 | ev_io *w; |
827 | |
892 | |
828 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
893 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
840 | fd_event (EV_P_ int fd, int revents) |
905 | fd_event (EV_P_ int fd, int revents) |
841 | { |
906 | { |
842 | ANFD *anfd = anfds + fd; |
907 | ANFD *anfd = anfds + fd; |
843 | |
908 | |
844 | if (expect_true (!anfd->reify)) |
909 | if (expect_true (!anfd->reify)) |
845 | fd_event_nc (EV_A_ fd, revents); |
910 | fd_event_nocheck (EV_A_ fd, revents); |
846 | } |
911 | } |
847 | |
912 | |
848 | void |
913 | void |
849 | ev_feed_fd_event (EV_P_ int fd, int revents) |
914 | ev_feed_fd_event (EV_P_ int fd, int revents) |
850 | { |
915 | { |
851 | if (fd >= 0 && fd < anfdmax) |
916 | if (fd >= 0 && fd < anfdmax) |
852 | fd_event_nc (EV_A_ fd, revents); |
917 | fd_event_nocheck (EV_A_ fd, revents); |
853 | } |
918 | } |
854 | |
919 | |
855 | /* make sure the external fd watch events are in-sync */ |
920 | /* make sure the external fd watch events are in-sync */ |
856 | /* with the kernel/libev internal state */ |
921 | /* with the kernel/libev internal state */ |
857 | inline_size void |
922 | inline_size void |
… | |
… | |
872 | |
937 | |
873 | #if EV_SELECT_IS_WINSOCKET |
938 | #if EV_SELECT_IS_WINSOCKET |
874 | if (events) |
939 | if (events) |
875 | { |
940 | { |
876 | unsigned long arg; |
941 | unsigned long arg; |
877 | #ifdef EV_FD_TO_WIN32_HANDLE |
|
|
878 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
942 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
879 | #else |
|
|
880 | anfd->handle = _get_osfhandle (fd); |
|
|
881 | #endif |
|
|
882 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
943 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
883 | } |
944 | } |
884 | #endif |
945 | #endif |
885 | |
946 | |
886 | { |
947 | { |
… | |
… | |
924 | ev_io_stop (EV_A_ w); |
985 | ev_io_stop (EV_A_ w); |
925 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
986 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
926 | } |
987 | } |
927 | } |
988 | } |
928 | |
989 | |
929 | /* check whether the given fd is atcually valid, for error recovery */ |
990 | /* check whether the given fd is actually valid, for error recovery */ |
930 | inline_size int |
991 | inline_size int |
931 | fd_valid (int fd) |
992 | fd_valid (int fd) |
932 | { |
993 | { |
933 | #ifdef _WIN32 |
994 | #ifdef _WIN32 |
934 | return _get_osfhandle (fd) != -1; |
995 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
935 | #else |
996 | #else |
936 | return fcntl (fd, F_GETFD) != -1; |
997 | return fcntl (fd, F_GETFD) != -1; |
937 | #endif |
998 | #endif |
938 | } |
999 | } |
939 | |
1000 | |
… | |
… | |
974 | { |
1035 | { |
975 | anfds [fd].events = 0; |
1036 | anfds [fd].events = 0; |
976 | anfds [fd].emask = 0; |
1037 | anfds [fd].emask = 0; |
977 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
1038 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
978 | } |
1039 | } |
|
|
1040 | } |
|
|
1041 | |
|
|
1042 | /* used to prepare libev internal fd's */ |
|
|
1043 | /* this is not fork-safe */ |
|
|
1044 | inline_speed void |
|
|
1045 | fd_intern (int fd) |
|
|
1046 | { |
|
|
1047 | #ifdef _WIN32 |
|
|
1048 | unsigned long arg = 1; |
|
|
1049 | ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg); |
|
|
1050 | #else |
|
|
1051 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
1052 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
1053 | #endif |
979 | } |
1054 | } |
980 | |
1055 | |
981 | /*****************************************************************************/ |
1056 | /*****************************************************************************/ |
982 | |
1057 | |
983 | /* |
1058 | /* |
… | |
… | |
1057 | |
1132 | |
1058 | for (;;) |
1133 | for (;;) |
1059 | { |
1134 | { |
1060 | int c = k << 1; |
1135 | int c = k << 1; |
1061 | |
1136 | |
1062 | if (c > N + HEAP0 - 1) |
1137 | if (c >= N + HEAP0) |
1063 | break; |
1138 | break; |
1064 | |
1139 | |
1065 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
1140 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
1066 | ? 1 : 0; |
1141 | ? 1 : 0; |
1067 | |
1142 | |
… | |
… | |
1103 | |
1178 | |
1104 | /* move an element suitably so it is in a correct place */ |
1179 | /* move an element suitably so it is in a correct place */ |
1105 | inline_size void |
1180 | inline_size void |
1106 | adjustheap (ANHE *heap, int N, int k) |
1181 | adjustheap (ANHE *heap, int N, int k) |
1107 | { |
1182 | { |
1108 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
1183 | if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)])) |
1109 | upheap (heap, k); |
1184 | upheap (heap, k); |
1110 | else |
1185 | else |
1111 | downheap (heap, N, k); |
1186 | downheap (heap, N, k); |
1112 | } |
1187 | } |
1113 | |
1188 | |
… | |
… | |
1137 | |
1212 | |
1138 | static ANSIG signals [EV_NSIG - 1]; |
1213 | static ANSIG signals [EV_NSIG - 1]; |
1139 | |
1214 | |
1140 | /*****************************************************************************/ |
1215 | /*****************************************************************************/ |
1141 | |
1216 | |
1142 | /* used to prepare libev internal fd's */ |
1217 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1143 | /* this is not fork-safe */ |
|
|
1144 | inline_speed void |
|
|
1145 | fd_intern (int fd) |
|
|
1146 | { |
|
|
1147 | #ifdef _WIN32 |
|
|
1148 | unsigned long arg = 1; |
|
|
1149 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
1150 | #else |
|
|
1151 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
1152 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
1153 | #endif |
|
|
1154 | } |
|
|
1155 | |
1218 | |
1156 | static void noinline |
1219 | static void noinline |
1157 | evpipe_init (EV_P) |
1220 | evpipe_init (EV_P) |
1158 | { |
1221 | { |
1159 | if (!ev_is_active (&pipe_w)) |
1222 | if (!ev_is_active (&pipe_w)) |
1160 | { |
1223 | { |
1161 | #if EV_USE_EVENTFD |
1224 | # if EV_USE_EVENTFD |
1162 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
1225 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
1163 | if (evfd < 0 && errno == EINVAL) |
1226 | if (evfd < 0 && errno == EINVAL) |
1164 | evfd = eventfd (0, 0); |
1227 | evfd = eventfd (0, 0); |
1165 | |
1228 | |
1166 | if (evfd >= 0) |
1229 | if (evfd >= 0) |
… | |
… | |
1168 | evpipe [0] = -1; |
1231 | evpipe [0] = -1; |
1169 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
1232 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
1170 | ev_io_set (&pipe_w, evfd, EV_READ); |
1233 | ev_io_set (&pipe_w, evfd, EV_READ); |
1171 | } |
1234 | } |
1172 | else |
1235 | else |
1173 | #endif |
1236 | # endif |
1174 | { |
1237 | { |
1175 | while (pipe (evpipe)) |
1238 | while (pipe (evpipe)) |
1176 | ev_syserr ("(libev) error creating signal/async pipe"); |
1239 | ev_syserr ("(libev) error creating signal/async pipe"); |
1177 | |
1240 | |
1178 | fd_intern (evpipe [0]); |
1241 | fd_intern (evpipe [0]); |
… | |
… | |
1189 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1252 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1190 | { |
1253 | { |
1191 | if (!*flag) |
1254 | if (!*flag) |
1192 | { |
1255 | { |
1193 | int old_errno = errno; /* save errno because write might clobber it */ |
1256 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1257 | char dummy; |
1194 | |
1258 | |
1195 | *flag = 1; |
1259 | *flag = 1; |
1196 | |
1260 | |
1197 | #if EV_USE_EVENTFD |
1261 | #if EV_USE_EVENTFD |
1198 | if (evfd >= 0) |
1262 | if (evfd >= 0) |
… | |
… | |
1200 | uint64_t counter = 1; |
1264 | uint64_t counter = 1; |
1201 | write (evfd, &counter, sizeof (uint64_t)); |
1265 | write (evfd, &counter, sizeof (uint64_t)); |
1202 | } |
1266 | } |
1203 | else |
1267 | else |
1204 | #endif |
1268 | #endif |
1205 | write (evpipe [1], &old_errno, 1); |
1269 | write (evpipe [1], &dummy, 1); |
1206 | |
1270 | |
1207 | errno = old_errno; |
1271 | errno = old_errno; |
1208 | } |
1272 | } |
1209 | } |
1273 | } |
1210 | |
1274 | |
… | |
… | |
1259 | { |
1323 | { |
1260 | #if EV_MULTIPLICITY |
1324 | #if EV_MULTIPLICITY |
1261 | EV_P = signals [signum - 1].loop; |
1325 | EV_P = signals [signum - 1].loop; |
1262 | #endif |
1326 | #endif |
1263 | |
1327 | |
1264 | #if _WIN32 |
1328 | #ifdef _WIN32 |
1265 | signal (signum, ev_sighandler); |
1329 | signal (signum, ev_sighandler); |
1266 | #endif |
1330 | #endif |
1267 | |
1331 | |
1268 | signals [signum - 1].pending = 1; |
1332 | signals [signum - 1].pending = 1; |
1269 | evpipe_write (EV_A_ &sig_pending); |
1333 | evpipe_write (EV_A_ &sig_pending); |
… | |
… | |
1311 | break; |
1375 | break; |
1312 | } |
1376 | } |
1313 | } |
1377 | } |
1314 | #endif |
1378 | #endif |
1315 | |
1379 | |
|
|
1380 | #endif |
|
|
1381 | |
1316 | /*****************************************************************************/ |
1382 | /*****************************************************************************/ |
1317 | |
1383 | |
|
|
1384 | #if EV_CHILD_ENABLE |
1318 | static WL childs [EV_PID_HASHSIZE]; |
1385 | static WL childs [EV_PID_HASHSIZE]; |
1319 | |
|
|
1320 | #ifndef _WIN32 |
|
|
1321 | |
1386 | |
1322 | static ev_signal childev; |
1387 | static ev_signal childev; |
1323 | |
1388 | |
1324 | #ifndef WIFCONTINUED |
1389 | #ifndef WIFCONTINUED |
1325 | # define WIFCONTINUED(status) 0 |
1390 | # define WIFCONTINUED(status) 0 |
… | |
… | |
1330 | child_reap (EV_P_ int chain, int pid, int status) |
1395 | child_reap (EV_P_ int chain, int pid, int status) |
1331 | { |
1396 | { |
1332 | ev_child *w; |
1397 | ev_child *w; |
1333 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1398 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1334 | |
1399 | |
1335 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1400 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
1336 | { |
1401 | { |
1337 | if ((w->pid == pid || !w->pid) |
1402 | if ((w->pid == pid || !w->pid) |
1338 | && (!traced || (w->flags & 1))) |
1403 | && (!traced || (w->flags & 1))) |
1339 | { |
1404 | { |
1340 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
1405 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
… | |
… | |
1365 | /* make sure we are called again until all children have been reaped */ |
1430 | /* make sure we are called again until all children have been reaped */ |
1366 | /* we need to do it this way so that the callback gets called before we continue */ |
1431 | /* we need to do it this way so that the callback gets called before we continue */ |
1367 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1432 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1368 | |
1433 | |
1369 | child_reap (EV_A_ pid, pid, status); |
1434 | child_reap (EV_A_ pid, pid, status); |
1370 | if (EV_PID_HASHSIZE > 1) |
1435 | if ((EV_PID_HASHSIZE) > 1) |
1371 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1436 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1372 | } |
1437 | } |
1373 | |
1438 | |
1374 | #endif |
1439 | #endif |
1375 | |
1440 | |
… | |
… | |
1464 | ev_backend (EV_P) |
1529 | ev_backend (EV_P) |
1465 | { |
1530 | { |
1466 | return backend; |
1531 | return backend; |
1467 | } |
1532 | } |
1468 | |
1533 | |
1469 | #if EV_MINIMAL < 2 |
1534 | #if EV_FEATURE_API |
1470 | unsigned int |
1535 | unsigned int |
1471 | ev_loop_count (EV_P) |
1536 | ev_loop_count (EV_P) |
1472 | { |
1537 | { |
1473 | return loop_count; |
1538 | return loop_count; |
1474 | } |
1539 | } |
… | |
… | |
1554 | |
1619 | |
1555 | ev_rt_now = ev_time (); |
1620 | ev_rt_now = ev_time (); |
1556 | mn_now = get_clock (); |
1621 | mn_now = get_clock (); |
1557 | now_floor = mn_now; |
1622 | now_floor = mn_now; |
1558 | rtmn_diff = ev_rt_now - mn_now; |
1623 | rtmn_diff = ev_rt_now - mn_now; |
1559 | #if EV_MINIMAL < 2 |
1624 | #if EV_FEATURE_API |
1560 | invoke_cb = ev_invoke_pending; |
1625 | invoke_cb = ev_invoke_pending; |
1561 | #endif |
1626 | #endif |
1562 | |
1627 | |
1563 | io_blocktime = 0.; |
1628 | io_blocktime = 0.; |
1564 | timeout_blocktime = 0.; |
1629 | timeout_blocktime = 0.; |
… | |
… | |
1570 | #endif |
1635 | #endif |
1571 | #if EV_USE_INOTIFY |
1636 | #if EV_USE_INOTIFY |
1572 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1637 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1573 | #endif |
1638 | #endif |
1574 | #if EV_USE_SIGNALFD |
1639 | #if EV_USE_SIGNALFD |
1575 | sigfd = flags & EVFLAG_NOSIGFD ? -1 : -2; |
1640 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
1576 | #endif |
1641 | #endif |
1577 | |
1642 | |
1578 | if (!(flags & 0x0000ffffU)) |
1643 | if (!(flags & 0x0000ffffU)) |
1579 | flags |= ev_recommended_backends (); |
1644 | flags |= ev_recommended_backends (); |
1580 | |
1645 | |
… | |
… | |
1594 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1659 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1595 | #endif |
1660 | #endif |
1596 | |
1661 | |
1597 | ev_prepare_init (&pending_w, pendingcb); |
1662 | ev_prepare_init (&pending_w, pendingcb); |
1598 | |
1663 | |
|
|
1664 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1599 | ev_init (&pipe_w, pipecb); |
1665 | ev_init (&pipe_w, pipecb); |
1600 | ev_set_priority (&pipe_w, EV_MAXPRI); |
1666 | ev_set_priority (&pipe_w, EV_MAXPRI); |
|
|
1667 | #endif |
1601 | } |
1668 | } |
1602 | } |
1669 | } |
1603 | |
1670 | |
1604 | /* free up a loop structure */ |
1671 | /* free up a loop structure */ |
1605 | static void noinline |
1672 | static void noinline |
… | |
… | |
1617 | close (evfd); |
1684 | close (evfd); |
1618 | #endif |
1685 | #endif |
1619 | |
1686 | |
1620 | if (evpipe [0] >= 0) |
1687 | if (evpipe [0] >= 0) |
1621 | { |
1688 | { |
1622 | close (evpipe [0]); |
1689 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1623 | close (evpipe [1]); |
1690 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1624 | } |
1691 | } |
1625 | } |
1692 | } |
1626 | |
1693 | |
1627 | #if EV_USE_SIGNALFD |
1694 | #if EV_USE_SIGNALFD |
1628 | if (ev_is_active (&sigfd_w)) |
1695 | if (ev_is_active (&sigfd_w)) |
1629 | { |
|
|
1630 | /*ev_ref (EV_A);*/ |
|
|
1631 | /*ev_io_stop (EV_A_ &sigfd_w);*/ |
|
|
1632 | |
|
|
1633 | close (sigfd); |
1696 | close (sigfd); |
1634 | } |
|
|
1635 | #endif |
1697 | #endif |
1636 | |
1698 | |
1637 | #if EV_USE_INOTIFY |
1699 | #if EV_USE_INOTIFY |
1638 | if (fs_fd >= 0) |
1700 | if (fs_fd >= 0) |
1639 | close (fs_fd); |
1701 | close (fs_fd); |
… | |
… | |
1724 | close (evfd); |
1786 | close (evfd); |
1725 | #endif |
1787 | #endif |
1726 | |
1788 | |
1727 | if (evpipe [0] >= 0) |
1789 | if (evpipe [0] >= 0) |
1728 | { |
1790 | { |
1729 | close (evpipe [0]); |
1791 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1730 | close (evpipe [1]); |
1792 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1731 | } |
1793 | } |
1732 | |
1794 | |
|
|
1795 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1733 | evpipe_init (EV_A); |
1796 | evpipe_init (EV_A); |
1734 | /* now iterate over everything, in case we missed something */ |
1797 | /* now iterate over everything, in case we missed something */ |
1735 | pipecb (EV_A_ &pipe_w, EV_READ); |
1798 | pipecb (EV_A_ &pipe_w, EV_READ); |
|
|
1799 | #endif |
1736 | } |
1800 | } |
1737 | |
1801 | |
1738 | postfork = 0; |
1802 | postfork = 0; |
1739 | } |
1803 | } |
1740 | |
1804 | |
… | |
… | |
1802 | verify_watcher (EV_A_ ws [cnt]); |
1866 | verify_watcher (EV_A_ ws [cnt]); |
1803 | } |
1867 | } |
1804 | } |
1868 | } |
1805 | #endif |
1869 | #endif |
1806 | |
1870 | |
1807 | #if EV_MINIMAL < 2 |
1871 | #if EV_FEATURE_API |
1808 | void |
1872 | void |
1809 | ev_loop_verify (EV_P) |
1873 | ev_loop_verify (EV_P) |
1810 | { |
1874 | { |
1811 | #if EV_VERIFY |
1875 | #if EV_VERIFY |
1812 | int i; |
1876 | int i; |
… | |
… | |
1853 | #if EV_ASYNC_ENABLE |
1917 | #if EV_ASYNC_ENABLE |
1854 | assert (asyncmax >= asynccnt); |
1918 | assert (asyncmax >= asynccnt); |
1855 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
1919 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
1856 | #endif |
1920 | #endif |
1857 | |
1921 | |
|
|
1922 | #if EV_PREPARE_ENABLE |
1858 | assert (preparemax >= preparecnt); |
1923 | assert (preparemax >= preparecnt); |
1859 | array_verify (EV_A_ (W *)prepares, preparecnt); |
1924 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
1925 | #endif |
1860 | |
1926 | |
|
|
1927 | #if EV_CHECK_ENABLE |
1861 | assert (checkmax >= checkcnt); |
1928 | assert (checkmax >= checkcnt); |
1862 | array_verify (EV_A_ (W *)checks, checkcnt); |
1929 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
1930 | #endif |
1863 | |
1931 | |
1864 | # if 0 |
1932 | # if 0 |
|
|
1933 | #if EV_CHILD_ENABLE |
1865 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1934 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
1866 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
1935 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
|
|
1936 | #endif |
1867 | # endif |
1937 | # endif |
1868 | #endif |
1938 | #endif |
1869 | } |
1939 | } |
1870 | #endif |
1940 | #endif |
1871 | |
1941 | |
… | |
… | |
1887 | |
1957 | |
1888 | loop_init (EV_A_ flags); |
1958 | loop_init (EV_A_ flags); |
1889 | |
1959 | |
1890 | if (ev_backend (EV_A)) |
1960 | if (ev_backend (EV_A)) |
1891 | { |
1961 | { |
1892 | #ifndef _WIN32 |
1962 | #if EV_CHILD_ENABLE |
1893 | ev_signal_init (&childev, childcb, SIGCHLD); |
1963 | ev_signal_init (&childev, childcb, SIGCHLD); |
1894 | ev_set_priority (&childev, EV_MAXPRI); |
1964 | ev_set_priority (&childev, EV_MAXPRI); |
1895 | ev_signal_start (EV_A_ &childev); |
1965 | ev_signal_start (EV_A_ &childev); |
1896 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1966 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1897 | #endif |
1967 | #endif |
… | |
… | |
1910 | EV_P = ev_default_loop_ptr; |
1980 | EV_P = ev_default_loop_ptr; |
1911 | #endif |
1981 | #endif |
1912 | |
1982 | |
1913 | ev_default_loop_ptr = 0; |
1983 | ev_default_loop_ptr = 0; |
1914 | |
1984 | |
1915 | #ifndef _WIN32 |
1985 | #if EV_CHILD_ENABLE |
1916 | ev_ref (EV_A); /* child watcher */ |
1986 | ev_ref (EV_A); /* child watcher */ |
1917 | ev_signal_stop (EV_A_ &childev); |
1987 | ev_signal_stop (EV_A_ &childev); |
1918 | #endif |
1988 | #endif |
1919 | |
1989 | |
1920 | loop_destroy (EV_A); |
1990 | loop_destroy (EV_A); |
… | |
… | |
2127 | ANHE_at_cache (*he); |
2197 | ANHE_at_cache (*he); |
2128 | } |
2198 | } |
2129 | } |
2199 | } |
2130 | |
2200 | |
2131 | /* fetch new monotonic and realtime times from the kernel */ |
2201 | /* fetch new monotonic and realtime times from the kernel */ |
2132 | /* also detetc if there was a timejump, and act accordingly */ |
2202 | /* also detect if there was a timejump, and act accordingly */ |
2133 | inline_speed void |
2203 | inline_speed void |
2134 | time_update (EV_P_ ev_tstamp max_block) |
2204 | time_update (EV_P_ ev_tstamp max_block) |
2135 | { |
2205 | { |
2136 | #if EV_USE_MONOTONIC |
2206 | #if EV_USE_MONOTONIC |
2137 | if (expect_true (have_monotonic)) |
2207 | if (expect_true (have_monotonic)) |
… | |
… | |
2197 | } |
2267 | } |
2198 | |
2268 | |
2199 | void |
2269 | void |
2200 | ev_loop (EV_P_ int flags) |
2270 | ev_loop (EV_P_ int flags) |
2201 | { |
2271 | { |
2202 | #if EV_MINIMAL < 2 |
2272 | #if EV_FEATURE_API |
2203 | ++loop_depth; |
2273 | ++loop_depth; |
2204 | #endif |
2274 | #endif |
2205 | |
2275 | |
2206 | assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); |
2276 | assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); |
2207 | |
2277 | |
… | |
… | |
2232 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2302 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2233 | EV_INVOKE_PENDING; |
2303 | EV_INVOKE_PENDING; |
2234 | } |
2304 | } |
2235 | #endif |
2305 | #endif |
2236 | |
2306 | |
|
|
2307 | #if EV_PREPARE_ENABLE |
2237 | /* queue prepare watchers (and execute them) */ |
2308 | /* queue prepare watchers (and execute them) */ |
2238 | if (expect_false (preparecnt)) |
2309 | if (expect_false (preparecnt)) |
2239 | { |
2310 | { |
2240 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2311 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2241 | EV_INVOKE_PENDING; |
2312 | EV_INVOKE_PENDING; |
2242 | } |
2313 | } |
|
|
2314 | #endif |
2243 | |
2315 | |
2244 | if (expect_false (loop_done)) |
2316 | if (expect_false (loop_done)) |
2245 | break; |
2317 | break; |
2246 | |
2318 | |
2247 | /* we might have forked, so reify kernel state if necessary */ |
2319 | /* we might have forked, so reify kernel state if necessary */ |
… | |
… | |
2298 | waittime -= sleeptime; |
2370 | waittime -= sleeptime; |
2299 | } |
2371 | } |
2300 | } |
2372 | } |
2301 | } |
2373 | } |
2302 | |
2374 | |
2303 | #if EV_MINIMAL < 2 |
2375 | #if EV_FEATURE_API |
2304 | ++loop_count; |
2376 | ++loop_count; |
2305 | #endif |
2377 | #endif |
2306 | assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ |
2378 | assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ |
2307 | backend_poll (EV_A_ waittime); |
2379 | backend_poll (EV_A_ waittime); |
2308 | assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ |
2380 | assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ |
… | |
… | |
2320 | #if EV_IDLE_ENABLE |
2392 | #if EV_IDLE_ENABLE |
2321 | /* queue idle watchers unless other events are pending */ |
2393 | /* queue idle watchers unless other events are pending */ |
2322 | idle_reify (EV_A); |
2394 | idle_reify (EV_A); |
2323 | #endif |
2395 | #endif |
2324 | |
2396 | |
|
|
2397 | #if EV_CHECK_ENABLE |
2325 | /* queue check watchers, to be executed first */ |
2398 | /* queue check watchers, to be executed first */ |
2326 | if (expect_false (checkcnt)) |
2399 | if (expect_false (checkcnt)) |
2327 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2400 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
|
|
2401 | #endif |
2328 | |
2402 | |
2329 | EV_INVOKE_PENDING; |
2403 | EV_INVOKE_PENDING; |
2330 | } |
2404 | } |
2331 | while (expect_true ( |
2405 | while (expect_true ( |
2332 | activecnt |
2406 | activecnt |
… | |
… | |
2335 | )); |
2409 | )); |
2336 | |
2410 | |
2337 | if (loop_done == EVUNLOOP_ONE) |
2411 | if (loop_done == EVUNLOOP_ONE) |
2338 | loop_done = EVUNLOOP_CANCEL; |
2412 | loop_done = EVUNLOOP_CANCEL; |
2339 | |
2413 | |
2340 | #if EV_MINIMAL < 2 |
2414 | #if EV_FEATURE_API |
2341 | --loop_depth; |
2415 | --loop_depth; |
2342 | #endif |
2416 | #endif |
2343 | } |
2417 | } |
2344 | |
2418 | |
2345 | void |
2419 | void |
… | |
… | |
2471 | |
2545 | |
2472 | if (expect_false (ev_is_active (w))) |
2546 | if (expect_false (ev_is_active (w))) |
2473 | return; |
2547 | return; |
2474 | |
2548 | |
2475 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
2549 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
2476 | assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2550 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2477 | |
2551 | |
2478 | EV_FREQUENT_CHECK; |
2552 | EV_FREQUENT_CHECK; |
2479 | |
2553 | |
2480 | ev_start (EV_A_ (W)w, 1); |
2554 | ev_start (EV_A_ (W)w, 1); |
2481 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2555 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
… | |
… | |
2551 | timers [active] = timers [timercnt + HEAP0]; |
2625 | timers [active] = timers [timercnt + HEAP0]; |
2552 | adjustheap (timers, timercnt, active); |
2626 | adjustheap (timers, timercnt, active); |
2553 | } |
2627 | } |
2554 | } |
2628 | } |
2555 | |
2629 | |
2556 | EV_FREQUENT_CHECK; |
|
|
2557 | |
|
|
2558 | ev_at (w) -= mn_now; |
2630 | ev_at (w) -= mn_now; |
2559 | |
2631 | |
2560 | ev_stop (EV_A_ (W)w); |
2632 | ev_stop (EV_A_ (W)w); |
|
|
2633 | |
|
|
2634 | EV_FREQUENT_CHECK; |
2561 | } |
2635 | } |
2562 | |
2636 | |
2563 | void noinline |
2637 | void noinline |
2564 | ev_timer_again (EV_P_ ev_timer *w) |
2638 | ev_timer_again (EV_P_ ev_timer *w) |
2565 | { |
2639 | { |
… | |
… | |
2644 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2718 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2645 | adjustheap (periodics, periodiccnt, active); |
2719 | adjustheap (periodics, periodiccnt, active); |
2646 | } |
2720 | } |
2647 | } |
2721 | } |
2648 | |
2722 | |
2649 | EV_FREQUENT_CHECK; |
|
|
2650 | |
|
|
2651 | ev_stop (EV_A_ (W)w); |
2723 | ev_stop (EV_A_ (W)w); |
|
|
2724 | |
|
|
2725 | EV_FREQUENT_CHECK; |
2652 | } |
2726 | } |
2653 | |
2727 | |
2654 | void noinline |
2728 | void noinline |
2655 | ev_periodic_again (EV_P_ ev_periodic *w) |
2729 | ev_periodic_again (EV_P_ ev_periodic *w) |
2656 | { |
2730 | { |
… | |
… | |
2661 | #endif |
2735 | #endif |
2662 | |
2736 | |
2663 | #ifndef SA_RESTART |
2737 | #ifndef SA_RESTART |
2664 | # define SA_RESTART 0 |
2738 | # define SA_RESTART 0 |
2665 | #endif |
2739 | #endif |
|
|
2740 | |
|
|
2741 | #if EV_SIGNAL_ENABLE |
2666 | |
2742 | |
2667 | void noinline |
2743 | void noinline |
2668 | ev_signal_start (EV_P_ ev_signal *w) |
2744 | ev_signal_start (EV_P_ ev_signal *w) |
2669 | { |
2745 | { |
2670 | if (expect_false (ev_is_active (w))) |
2746 | if (expect_false (ev_is_active (w))) |
… | |
… | |
2717 | if (!((WL)w)->next) |
2793 | if (!((WL)w)->next) |
2718 | # if EV_USE_SIGNALFD |
2794 | # if EV_USE_SIGNALFD |
2719 | if (sigfd < 0) /*TODO*/ |
2795 | if (sigfd < 0) /*TODO*/ |
2720 | # endif |
2796 | # endif |
2721 | { |
2797 | { |
2722 | # if _WIN32 |
2798 | # ifdef _WIN32 |
|
|
2799 | evpipe_init (EV_A); |
|
|
2800 | |
2723 | signal (w->signum, ev_sighandler); |
2801 | signal (w->signum, ev_sighandler); |
2724 | # else |
2802 | # else |
2725 | struct sigaction sa; |
2803 | struct sigaction sa; |
2726 | |
2804 | |
2727 | evpipe_init (EV_A); |
2805 | evpipe_init (EV_A); |
… | |
… | |
2758 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
2836 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
2759 | #endif |
2837 | #endif |
2760 | #if EV_USE_SIGNALFD |
2838 | #if EV_USE_SIGNALFD |
2761 | if (sigfd >= 0) |
2839 | if (sigfd >= 0) |
2762 | { |
2840 | { |
2763 | sigprocmask (SIG_UNBLOCK, &sigfd_set, 0);//D |
2841 | sigset_t ss; |
|
|
2842 | |
|
|
2843 | sigemptyset (&ss); |
|
|
2844 | sigaddset (&ss, w->signum); |
2764 | sigdelset (&sigfd_set, w->signum); |
2845 | sigdelset (&sigfd_set, w->signum); |
|
|
2846 | |
2765 | signalfd (sigfd, &sigfd_set, 0); |
2847 | signalfd (sigfd, &sigfd_set, 0); |
2766 | sigprocmask (SIG_BLOCK, &sigfd_set, 0);//D |
2848 | sigprocmask (SIG_UNBLOCK, &ss, 0); |
2767 | /*TODO: maybe unblock signal? */ |
|
|
2768 | } |
2849 | } |
2769 | else |
2850 | else |
2770 | #endif |
2851 | #endif |
2771 | signal (w->signum, SIG_DFL); |
2852 | signal (w->signum, SIG_DFL); |
2772 | } |
2853 | } |
2773 | |
2854 | |
2774 | EV_FREQUENT_CHECK; |
2855 | EV_FREQUENT_CHECK; |
2775 | } |
2856 | } |
2776 | |
2857 | |
|
|
2858 | #endif |
|
|
2859 | |
|
|
2860 | #if EV_CHILD_ENABLE |
|
|
2861 | |
2777 | void |
2862 | void |
2778 | ev_child_start (EV_P_ ev_child *w) |
2863 | ev_child_start (EV_P_ ev_child *w) |
2779 | { |
2864 | { |
2780 | #if EV_MULTIPLICITY |
2865 | #if EV_MULTIPLICITY |
2781 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2866 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
… | |
… | |
2784 | return; |
2869 | return; |
2785 | |
2870 | |
2786 | EV_FREQUENT_CHECK; |
2871 | EV_FREQUENT_CHECK; |
2787 | |
2872 | |
2788 | ev_start (EV_A_ (W)w, 1); |
2873 | ev_start (EV_A_ (W)w, 1); |
2789 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2874 | wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2790 | |
2875 | |
2791 | EV_FREQUENT_CHECK; |
2876 | EV_FREQUENT_CHECK; |
2792 | } |
2877 | } |
2793 | |
2878 | |
2794 | void |
2879 | void |
… | |
… | |
2798 | if (expect_false (!ev_is_active (w))) |
2883 | if (expect_false (!ev_is_active (w))) |
2799 | return; |
2884 | return; |
2800 | |
2885 | |
2801 | EV_FREQUENT_CHECK; |
2886 | EV_FREQUENT_CHECK; |
2802 | |
2887 | |
2803 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2888 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2804 | ev_stop (EV_A_ (W)w); |
2889 | ev_stop (EV_A_ (W)w); |
2805 | |
2890 | |
2806 | EV_FREQUENT_CHECK; |
2891 | EV_FREQUENT_CHECK; |
2807 | } |
2892 | } |
|
|
2893 | |
|
|
2894 | #endif |
2808 | |
2895 | |
2809 | #if EV_STAT_ENABLE |
2896 | #if EV_STAT_ENABLE |
2810 | |
2897 | |
2811 | # ifdef _WIN32 |
2898 | # ifdef _WIN32 |
2812 | # undef lstat |
2899 | # undef lstat |
… | |
… | |
2818 | #define MIN_STAT_INTERVAL 0.1074891 |
2905 | #define MIN_STAT_INTERVAL 0.1074891 |
2819 | |
2906 | |
2820 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2907 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2821 | |
2908 | |
2822 | #if EV_USE_INOTIFY |
2909 | #if EV_USE_INOTIFY |
2823 | # define EV_INOTIFY_BUFSIZE 8192 |
2910 | |
|
|
2911 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
|
|
2912 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
2824 | |
2913 | |
2825 | static void noinline |
2914 | static void noinline |
2826 | infy_add (EV_P_ ev_stat *w) |
2915 | infy_add (EV_P_ ev_stat *w) |
2827 | { |
2916 | { |
2828 | w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); |
2917 | w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); |
2829 | |
2918 | |
2830 | if (w->wd < 0) |
2919 | if (w->wd >= 0) |
|
|
2920 | { |
|
|
2921 | struct statfs sfs; |
|
|
2922 | |
|
|
2923 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
2924 | /* unless the filesystem is known to be local, we therefore still poll */ |
|
|
2925 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2926 | |
|
|
2927 | if (!fs_2625) |
|
|
2928 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
2929 | else if (!statfs (w->path, &sfs) |
|
|
2930 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
2931 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2932 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2933 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2934 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2935 | || sfs.f_type == 0x58465342 /* xfs */)) |
|
|
2936 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
|
|
2937 | else |
|
|
2938 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
2831 | { |
2939 | } |
|
|
2940 | else |
|
|
2941 | { |
|
|
2942 | /* can't use inotify, continue to stat */ |
2832 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2943 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2833 | ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
|
|
2834 | |
2944 | |
2835 | /* monitor some parent directory for speedup hints */ |
2945 | /* if path is not there, monitor some parent directory for speedup hints */ |
2836 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2946 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2837 | /* but an efficiency issue only */ |
2947 | /* but an efficiency issue only */ |
2838 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2948 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2839 | { |
2949 | { |
2840 | char path [4096]; |
2950 | char path [4096]; |
… | |
… | |
2856 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2966 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2857 | } |
2967 | } |
2858 | } |
2968 | } |
2859 | |
2969 | |
2860 | if (w->wd >= 0) |
2970 | if (w->wd >= 0) |
2861 | { |
|
|
2862 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2971 | wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2863 | |
2972 | |
2864 | /* now local changes will be tracked by inotify, but remote changes won't */ |
2973 | /* now re-arm timer, if required */ |
2865 | /* unless the filesystem it known to be local, we therefore still poll */ |
2974 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2866 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2867 | struct statfs sfs; |
|
|
2868 | |
|
|
2869 | if (fs_2625 && !statfs (w->path, &sfs)) |
|
|
2870 | if (sfs.f_type == 0x1373 /* devfs */ |
|
|
2871 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2872 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2873 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2874 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2875 | || sfs.f_type == 0x58465342 /* xfs */) |
|
|
2876 | return; |
|
|
2877 | |
|
|
2878 | w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2879 | ev_timer_again (EV_A_ &w->timer); |
2975 | ev_timer_again (EV_A_ &w->timer); |
2880 | } |
2976 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
2881 | } |
2977 | } |
2882 | |
2978 | |
2883 | static void noinline |
2979 | static void noinline |
2884 | infy_del (EV_P_ ev_stat *w) |
2980 | infy_del (EV_P_ ev_stat *w) |
2885 | { |
2981 | { |
… | |
… | |
2888 | |
2984 | |
2889 | if (wd < 0) |
2985 | if (wd < 0) |
2890 | return; |
2986 | return; |
2891 | |
2987 | |
2892 | w->wd = -2; |
2988 | w->wd = -2; |
2893 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
2989 | slot = wd & ((EV_INOTIFY_HASHSIZE) - 1); |
2894 | wlist_del (&fs_hash [slot].head, (WL)w); |
2990 | wlist_del (&fs_hash [slot].head, (WL)w); |
2895 | |
2991 | |
2896 | /* remove this watcher, if others are watching it, they will rearm */ |
2992 | /* remove this watcher, if others are watching it, they will rearm */ |
2897 | inotify_rm_watch (fs_fd, wd); |
2993 | inotify_rm_watch (fs_fd, wd); |
2898 | } |
2994 | } |
… | |
… | |
2900 | static void noinline |
2996 | static void noinline |
2901 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2997 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2902 | { |
2998 | { |
2903 | if (slot < 0) |
2999 | if (slot < 0) |
2904 | /* overflow, need to check for all hash slots */ |
3000 | /* overflow, need to check for all hash slots */ |
2905 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3001 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2906 | infy_wd (EV_A_ slot, wd, ev); |
3002 | infy_wd (EV_A_ slot, wd, ev); |
2907 | else |
3003 | else |
2908 | { |
3004 | { |
2909 | WL w_; |
3005 | WL w_; |
2910 | |
3006 | |
2911 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
3007 | for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; ) |
2912 | { |
3008 | { |
2913 | ev_stat *w = (ev_stat *)w_; |
3009 | ev_stat *w = (ev_stat *)w_; |
2914 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
3010 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
2915 | |
3011 | |
2916 | if (w->wd == wd || wd == -1) |
3012 | if (w->wd == wd || wd == -1) |
2917 | { |
3013 | { |
2918 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
3014 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2919 | { |
3015 | { |
2920 | wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
3016 | wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2921 | w->wd = -1; |
3017 | w->wd = -1; |
2922 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3018 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2923 | } |
3019 | } |
2924 | |
3020 | |
2925 | stat_timer_cb (EV_A_ &w->timer, 0); |
3021 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2930 | |
3026 | |
2931 | static void |
3027 | static void |
2932 | infy_cb (EV_P_ ev_io *w, int revents) |
3028 | infy_cb (EV_P_ ev_io *w, int revents) |
2933 | { |
3029 | { |
2934 | char buf [EV_INOTIFY_BUFSIZE]; |
3030 | char buf [EV_INOTIFY_BUFSIZE]; |
2935 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2936 | int ofs; |
3031 | int ofs; |
2937 | int len = read (fs_fd, buf, sizeof (buf)); |
3032 | int len = read (fs_fd, buf, sizeof (buf)); |
2938 | |
3033 | |
2939 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
3034 | for (ofs = 0; ofs < len; ) |
|
|
3035 | { |
|
|
3036 | struct inotify_event *ev = (struct inotify_event *)(buf + ofs); |
2940 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3037 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
3038 | ofs += sizeof (struct inotify_event) + ev->len; |
|
|
3039 | } |
|
|
3040 | } |
|
|
3041 | |
|
|
3042 | inline_size unsigned int |
|
|
3043 | ev_linux_version (void) |
|
|
3044 | { |
|
|
3045 | struct utsname buf; |
|
|
3046 | unsigned int v; |
|
|
3047 | int i; |
|
|
3048 | char *p = buf.release; |
|
|
3049 | |
|
|
3050 | if (uname (&buf)) |
|
|
3051 | return 0; |
|
|
3052 | |
|
|
3053 | for (i = 3+1; --i; ) |
|
|
3054 | { |
|
|
3055 | unsigned int c = 0; |
|
|
3056 | |
|
|
3057 | for (;;) |
|
|
3058 | { |
|
|
3059 | if (*p >= '0' && *p <= '9') |
|
|
3060 | c = c * 10 + *p++ - '0'; |
|
|
3061 | else |
|
|
3062 | { |
|
|
3063 | p += *p == '.'; |
|
|
3064 | break; |
|
|
3065 | } |
|
|
3066 | } |
|
|
3067 | |
|
|
3068 | v = (v << 8) | c; |
|
|
3069 | } |
|
|
3070 | |
|
|
3071 | return v; |
2941 | } |
3072 | } |
2942 | |
3073 | |
2943 | inline_size void |
3074 | inline_size void |
2944 | check_2625 (EV_P) |
3075 | ev_check_2625 (EV_P) |
2945 | { |
3076 | { |
2946 | /* kernels < 2.6.25 are borked |
3077 | /* kernels < 2.6.25 are borked |
2947 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
3078 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
2948 | */ |
3079 | */ |
2949 | struct utsname buf; |
3080 | if (ev_linux_version () < 0x020619) |
2950 | int major, minor, micro; |
|
|
2951 | |
|
|
2952 | if (uname (&buf)) |
|
|
2953 | return; |
3081 | return; |
2954 | |
3082 | |
2955 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
|
|
2956 | return; |
|
|
2957 | |
|
|
2958 | if (major < 2 |
|
|
2959 | || (major == 2 && minor < 6) |
|
|
2960 | || (major == 2 && minor == 6 && micro < 25)) |
|
|
2961 | return; |
|
|
2962 | |
|
|
2963 | fs_2625 = 1; |
3083 | fs_2625 = 1; |
|
|
3084 | } |
|
|
3085 | |
|
|
3086 | inline_size int |
|
|
3087 | infy_newfd (void) |
|
|
3088 | { |
|
|
3089 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
|
|
3090 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
|
|
3091 | if (fd >= 0) |
|
|
3092 | return fd; |
|
|
3093 | #endif |
|
|
3094 | return inotify_init (); |
2964 | } |
3095 | } |
2965 | |
3096 | |
2966 | inline_size void |
3097 | inline_size void |
2967 | infy_init (EV_P) |
3098 | infy_init (EV_P) |
2968 | { |
3099 | { |
2969 | if (fs_fd != -2) |
3100 | if (fs_fd != -2) |
2970 | return; |
3101 | return; |
2971 | |
3102 | |
2972 | fs_fd = -1; |
3103 | fs_fd = -1; |
2973 | |
3104 | |
2974 | check_2625 (EV_A); |
3105 | ev_check_2625 (EV_A); |
2975 | |
3106 | |
2976 | fs_fd = inotify_init (); |
3107 | fs_fd = infy_newfd (); |
2977 | |
3108 | |
2978 | if (fs_fd >= 0) |
3109 | if (fs_fd >= 0) |
2979 | { |
3110 | { |
|
|
3111 | fd_intern (fs_fd); |
2980 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
3112 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
2981 | ev_set_priority (&fs_w, EV_MAXPRI); |
3113 | ev_set_priority (&fs_w, EV_MAXPRI); |
2982 | ev_io_start (EV_A_ &fs_w); |
3114 | ev_io_start (EV_A_ &fs_w); |
|
|
3115 | ev_unref (EV_A); |
2983 | } |
3116 | } |
2984 | } |
3117 | } |
2985 | |
3118 | |
2986 | inline_size void |
3119 | inline_size void |
2987 | infy_fork (EV_P) |
3120 | infy_fork (EV_P) |
… | |
… | |
2989 | int slot; |
3122 | int slot; |
2990 | |
3123 | |
2991 | if (fs_fd < 0) |
3124 | if (fs_fd < 0) |
2992 | return; |
3125 | return; |
2993 | |
3126 | |
|
|
3127 | ev_ref (EV_A); |
|
|
3128 | ev_io_stop (EV_A_ &fs_w); |
2994 | close (fs_fd); |
3129 | close (fs_fd); |
2995 | fs_fd = inotify_init (); |
3130 | fs_fd = infy_newfd (); |
2996 | |
3131 | |
|
|
3132 | if (fs_fd >= 0) |
|
|
3133 | { |
|
|
3134 | fd_intern (fs_fd); |
|
|
3135 | ev_io_set (&fs_w, fs_fd, EV_READ); |
|
|
3136 | ev_io_start (EV_A_ &fs_w); |
|
|
3137 | ev_unref (EV_A); |
|
|
3138 | } |
|
|
3139 | |
2997 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3140 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2998 | { |
3141 | { |
2999 | WL w_ = fs_hash [slot].head; |
3142 | WL w_ = fs_hash [slot].head; |
3000 | fs_hash [slot].head = 0; |
3143 | fs_hash [slot].head = 0; |
3001 | |
3144 | |
3002 | while (w_) |
3145 | while (w_) |
… | |
… | |
3007 | w->wd = -1; |
3150 | w->wd = -1; |
3008 | |
3151 | |
3009 | if (fs_fd >= 0) |
3152 | if (fs_fd >= 0) |
3010 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3153 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3011 | else |
3154 | else |
|
|
3155 | { |
|
|
3156 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3157 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
3012 | ev_timer_again (EV_A_ &w->timer); |
3158 | ev_timer_again (EV_A_ &w->timer); |
|
|
3159 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
|
|
3160 | } |
3013 | } |
3161 | } |
3014 | } |
3162 | } |
3015 | } |
3163 | } |
3016 | |
3164 | |
3017 | #endif |
3165 | #endif |
… | |
… | |
3034 | static void noinline |
3182 | static void noinline |
3035 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3183 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3036 | { |
3184 | { |
3037 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3185 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3038 | |
3186 | |
3039 | /* we copy this here each the time so that */ |
3187 | ev_statdata prev = w->attr; |
3040 | /* prev has the old value when the callback gets invoked */ |
|
|
3041 | w->prev = w->attr; |
|
|
3042 | ev_stat_stat (EV_A_ w); |
3188 | ev_stat_stat (EV_A_ w); |
3043 | |
3189 | |
3044 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
3190 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
3045 | if ( |
3191 | if ( |
3046 | w->prev.st_dev != w->attr.st_dev |
3192 | prev.st_dev != w->attr.st_dev |
3047 | || w->prev.st_ino != w->attr.st_ino |
3193 | || prev.st_ino != w->attr.st_ino |
3048 | || w->prev.st_mode != w->attr.st_mode |
3194 | || prev.st_mode != w->attr.st_mode |
3049 | || w->prev.st_nlink != w->attr.st_nlink |
3195 | || prev.st_nlink != w->attr.st_nlink |
3050 | || w->prev.st_uid != w->attr.st_uid |
3196 | || prev.st_uid != w->attr.st_uid |
3051 | || w->prev.st_gid != w->attr.st_gid |
3197 | || prev.st_gid != w->attr.st_gid |
3052 | || w->prev.st_rdev != w->attr.st_rdev |
3198 | || prev.st_rdev != w->attr.st_rdev |
3053 | || w->prev.st_size != w->attr.st_size |
3199 | || prev.st_size != w->attr.st_size |
3054 | || w->prev.st_atime != w->attr.st_atime |
3200 | || prev.st_atime != w->attr.st_atime |
3055 | || w->prev.st_mtime != w->attr.st_mtime |
3201 | || prev.st_mtime != w->attr.st_mtime |
3056 | || w->prev.st_ctime != w->attr.st_ctime |
3202 | || prev.st_ctime != w->attr.st_ctime |
3057 | ) { |
3203 | ) { |
|
|
3204 | /* we only update w->prev on actual differences */ |
|
|
3205 | /* in case we test more often than invoke the callback, */ |
|
|
3206 | /* to ensure that prev is always different to attr */ |
|
|
3207 | w->prev = prev; |
|
|
3208 | |
3058 | #if EV_USE_INOTIFY |
3209 | #if EV_USE_INOTIFY |
3059 | if (fs_fd >= 0) |
3210 | if (fs_fd >= 0) |
3060 | { |
3211 | { |
3061 | infy_del (EV_A_ w); |
3212 | infy_del (EV_A_ w); |
3062 | infy_add (EV_A_ w); |
3213 | infy_add (EV_A_ w); |
… | |
… | |
3087 | |
3238 | |
3088 | if (fs_fd >= 0) |
3239 | if (fs_fd >= 0) |
3089 | infy_add (EV_A_ w); |
3240 | infy_add (EV_A_ w); |
3090 | else |
3241 | else |
3091 | #endif |
3242 | #endif |
|
|
3243 | { |
3092 | ev_timer_again (EV_A_ &w->timer); |
3244 | ev_timer_again (EV_A_ &w->timer); |
|
|
3245 | ev_unref (EV_A); |
|
|
3246 | } |
3093 | |
3247 | |
3094 | ev_start (EV_A_ (W)w, 1); |
3248 | ev_start (EV_A_ (W)w, 1); |
3095 | |
3249 | |
3096 | EV_FREQUENT_CHECK; |
3250 | EV_FREQUENT_CHECK; |
3097 | } |
3251 | } |
… | |
… | |
3106 | EV_FREQUENT_CHECK; |
3260 | EV_FREQUENT_CHECK; |
3107 | |
3261 | |
3108 | #if EV_USE_INOTIFY |
3262 | #if EV_USE_INOTIFY |
3109 | infy_del (EV_A_ w); |
3263 | infy_del (EV_A_ w); |
3110 | #endif |
3264 | #endif |
|
|
3265 | |
|
|
3266 | if (ev_is_active (&w->timer)) |
|
|
3267 | { |
|
|
3268 | ev_ref (EV_A); |
3111 | ev_timer_stop (EV_A_ &w->timer); |
3269 | ev_timer_stop (EV_A_ &w->timer); |
|
|
3270 | } |
3112 | |
3271 | |
3113 | ev_stop (EV_A_ (W)w); |
3272 | ev_stop (EV_A_ (W)w); |
3114 | |
3273 | |
3115 | EV_FREQUENT_CHECK; |
3274 | EV_FREQUENT_CHECK; |
3116 | } |
3275 | } |
… | |
… | |
3161 | |
3320 | |
3162 | EV_FREQUENT_CHECK; |
3321 | EV_FREQUENT_CHECK; |
3163 | } |
3322 | } |
3164 | #endif |
3323 | #endif |
3165 | |
3324 | |
|
|
3325 | #if EV_PREPARE_ENABLE |
3166 | void |
3326 | void |
3167 | ev_prepare_start (EV_P_ ev_prepare *w) |
3327 | ev_prepare_start (EV_P_ ev_prepare *w) |
3168 | { |
3328 | { |
3169 | if (expect_false (ev_is_active (w))) |
3329 | if (expect_false (ev_is_active (w))) |
3170 | return; |
3330 | return; |
… | |
… | |
3196 | |
3356 | |
3197 | ev_stop (EV_A_ (W)w); |
3357 | ev_stop (EV_A_ (W)w); |
3198 | |
3358 | |
3199 | EV_FREQUENT_CHECK; |
3359 | EV_FREQUENT_CHECK; |
3200 | } |
3360 | } |
|
|
3361 | #endif |
3201 | |
3362 | |
|
|
3363 | #if EV_CHECK_ENABLE |
3202 | void |
3364 | void |
3203 | ev_check_start (EV_P_ ev_check *w) |
3365 | ev_check_start (EV_P_ ev_check *w) |
3204 | { |
3366 | { |
3205 | if (expect_false (ev_is_active (w))) |
3367 | if (expect_false (ev_is_active (w))) |
3206 | return; |
3368 | return; |
… | |
… | |
3232 | |
3394 | |
3233 | ev_stop (EV_A_ (W)w); |
3395 | ev_stop (EV_A_ (W)w); |
3234 | |
3396 | |
3235 | EV_FREQUENT_CHECK; |
3397 | EV_FREQUENT_CHECK; |
3236 | } |
3398 | } |
|
|
3399 | #endif |
3237 | |
3400 | |
3238 | #if EV_EMBED_ENABLE |
3401 | #if EV_EMBED_ENABLE |
3239 | void noinline |
3402 | void noinline |
3240 | ev_embed_sweep (EV_P_ ev_embed *w) |
3403 | ev_embed_sweep (EV_P_ ev_embed *w) |
3241 | { |
3404 | { |
… | |
… | |
3335 | EV_FREQUENT_CHECK; |
3498 | EV_FREQUENT_CHECK; |
3336 | |
3499 | |
3337 | ev_io_stop (EV_A_ &w->io); |
3500 | ev_io_stop (EV_A_ &w->io); |
3338 | ev_prepare_stop (EV_A_ &w->prepare); |
3501 | ev_prepare_stop (EV_A_ &w->prepare); |
3339 | ev_fork_stop (EV_A_ &w->fork); |
3502 | ev_fork_stop (EV_A_ &w->fork); |
|
|
3503 | |
|
|
3504 | ev_stop (EV_A_ (W)w); |
3340 | |
3505 | |
3341 | EV_FREQUENT_CHECK; |
3506 | EV_FREQUENT_CHECK; |
3342 | } |
3507 | } |
3343 | #endif |
3508 | #endif |
3344 | |
3509 | |
… | |
… | |
3568 | if (types & EV_ASYNC) |
3733 | if (types & EV_ASYNC) |
3569 | for (i = asynccnt; i--; ) |
3734 | for (i = asynccnt; i--; ) |
3570 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
3735 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
3571 | #endif |
3736 | #endif |
3572 | |
3737 | |
|
|
3738 | #if EV_PREPARE_ENABLE |
3573 | if (types & EV_PREPARE) |
3739 | if (types & EV_PREPARE) |
3574 | for (i = preparecnt; i--; ) |
3740 | for (i = preparecnt; i--; ) |
3575 | #if EV_EMBED_ENABLE |
3741 | # if EV_EMBED_ENABLE |
3576 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
3742 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
3577 | #endif |
3743 | # endif |
3578 | cb (EV_A_ EV_PREPARE, prepares [i]); |
3744 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
3745 | #endif |
3579 | |
3746 | |
|
|
3747 | #if EV_CHECK_ENABLE |
3580 | if (types & EV_CHECK) |
3748 | if (types & EV_CHECK) |
3581 | for (i = checkcnt; i--; ) |
3749 | for (i = checkcnt; i--; ) |
3582 | cb (EV_A_ EV_CHECK, checks [i]); |
3750 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
3751 | #endif |
3583 | |
3752 | |
|
|
3753 | #if EV_SIGNAL_ENABLE |
3584 | if (types & EV_SIGNAL) |
3754 | if (types & EV_SIGNAL) |
3585 | for (i = 0; i < EV_NSIG - 1; ++i) |
3755 | for (i = 0; i < EV_NSIG - 1; ++i) |
3586 | for (wl = signals [i].head; wl; ) |
3756 | for (wl = signals [i].head; wl; ) |
3587 | { |
3757 | { |
3588 | wn = wl->next; |
3758 | wn = wl->next; |
3589 | cb (EV_A_ EV_SIGNAL, wl); |
3759 | cb (EV_A_ EV_SIGNAL, wl); |
3590 | wl = wn; |
3760 | wl = wn; |
3591 | } |
3761 | } |
|
|
3762 | #endif |
3592 | |
3763 | |
|
|
3764 | #if EV_CHILD_ENABLE |
3593 | if (types & EV_CHILD) |
3765 | if (types & EV_CHILD) |
3594 | for (i = EV_PID_HASHSIZE; i--; ) |
3766 | for (i = (EV_PID_HASHSIZE); i--; ) |
3595 | for (wl = childs [i]; wl; ) |
3767 | for (wl = childs [i]; wl; ) |
3596 | { |
3768 | { |
3597 | wn = wl->next; |
3769 | wn = wl->next; |
3598 | cb (EV_A_ EV_CHILD, wl); |
3770 | cb (EV_A_ EV_CHILD, wl); |
3599 | wl = wn; |
3771 | wl = wn; |
3600 | } |
3772 | } |
|
|
3773 | #endif |
3601 | /* EV_STAT 0x00001000 /* stat data changed */ |
3774 | /* EV_STAT 0x00001000 /* stat data changed */ |
3602 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
3775 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
3603 | } |
3776 | } |
3604 | #endif |
3777 | #endif |
3605 | |
3778 | |