1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libev@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * tion, are permitted provided that the following conditions are met: |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * |
9 | * |
… | |
… | |
39 | |
39 | |
40 | #ifdef __cplusplus |
40 | #ifdef __cplusplus |
41 | extern "C" { |
41 | extern "C" { |
42 | #endif |
42 | #endif |
43 | |
43 | |
|
|
44 | /* this big block deduces configuration from config.h */ |
44 | #ifndef EV_STANDALONE |
45 | #ifndef EV_STANDALONE |
45 | # ifdef EV_CONFIG_H |
46 | # ifdef EV_CONFIG_H |
46 | # include EV_CONFIG_H |
47 | # include EV_CONFIG_H |
47 | # else |
48 | # else |
48 | # include "config.h" |
49 | # include "config.h" |
49 | # endif |
50 | # endif |
50 | |
51 | |
|
|
52 | # if HAVE_CLOCK_SYSCALL |
|
|
53 | # ifndef EV_USE_CLOCK_SYSCALL |
|
|
54 | # define EV_USE_CLOCK_SYSCALL 1 |
|
|
55 | # ifndef EV_USE_REALTIME |
|
|
56 | # define EV_USE_REALTIME 0 |
|
|
57 | # endif |
|
|
58 | # ifndef EV_USE_MONOTONIC |
|
|
59 | # define EV_USE_MONOTONIC 1 |
|
|
60 | # endif |
|
|
61 | # endif |
|
|
62 | # elif !defined(EV_USE_CLOCK_SYSCALL) |
|
|
63 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
64 | # endif |
|
|
65 | |
51 | # if HAVE_CLOCK_GETTIME |
66 | # if HAVE_CLOCK_GETTIME |
52 | # ifndef EV_USE_MONOTONIC |
67 | # ifndef EV_USE_MONOTONIC |
53 | # define EV_USE_MONOTONIC 1 |
68 | # define EV_USE_MONOTONIC 1 |
54 | # endif |
69 | # endif |
55 | # ifndef EV_USE_REALTIME |
70 | # ifndef EV_USE_REALTIME |
56 | # define EV_USE_REALTIME 1 |
71 | # define EV_USE_REALTIME 0 |
57 | # endif |
72 | # endif |
58 | # else |
73 | # else |
59 | # ifndef EV_USE_MONOTONIC |
74 | # ifndef EV_USE_MONOTONIC |
60 | # define EV_USE_MONOTONIC 0 |
75 | # define EV_USE_MONOTONIC 0 |
61 | # endif |
76 | # endif |
… | |
… | |
118 | # else |
133 | # else |
119 | # define EV_USE_INOTIFY 0 |
134 | # define EV_USE_INOTIFY 0 |
120 | # endif |
135 | # endif |
121 | # endif |
136 | # endif |
122 | |
137 | |
|
|
138 | # ifndef EV_USE_EVENTFD |
|
|
139 | # if HAVE_EVENTFD |
|
|
140 | # define EV_USE_EVENTFD 1 |
|
|
141 | # else |
|
|
142 | # define EV_USE_EVENTFD 0 |
|
|
143 | # endif |
|
|
144 | # endif |
|
|
145 | |
123 | #endif |
146 | #endif |
124 | |
147 | |
125 | #include <math.h> |
148 | #include <math.h> |
126 | #include <stdlib.h> |
149 | #include <stdlib.h> |
127 | #include <fcntl.h> |
150 | #include <fcntl.h> |
… | |
… | |
145 | #ifndef _WIN32 |
168 | #ifndef _WIN32 |
146 | # include <sys/time.h> |
169 | # include <sys/time.h> |
147 | # include <sys/wait.h> |
170 | # include <sys/wait.h> |
148 | # include <unistd.h> |
171 | # include <unistd.h> |
149 | #else |
172 | #else |
|
|
173 | # include <io.h> |
150 | # define WIN32_LEAN_AND_MEAN |
174 | # define WIN32_LEAN_AND_MEAN |
151 | # include <windows.h> |
175 | # include <windows.h> |
152 | # ifndef EV_SELECT_IS_WINSOCKET |
176 | # ifndef EV_SELECT_IS_WINSOCKET |
153 | # define EV_SELECT_IS_WINSOCKET 1 |
177 | # define EV_SELECT_IS_WINSOCKET 1 |
154 | # endif |
178 | # endif |
155 | #endif |
179 | #endif |
156 | |
180 | |
157 | /**/ |
181 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
|
|
182 | |
|
|
183 | #ifndef EV_USE_CLOCK_SYSCALL |
|
|
184 | # if __linux && __GLIBC__ >= 2 |
|
|
185 | # define EV_USE_CLOCK_SYSCALL 1 |
|
|
186 | # else |
|
|
187 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
188 | # endif |
|
|
189 | #endif |
158 | |
190 | |
159 | #ifndef EV_USE_MONOTONIC |
191 | #ifndef EV_USE_MONOTONIC |
|
|
192 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
|
|
193 | # define EV_USE_MONOTONIC 1 |
|
|
194 | # else |
160 | # define EV_USE_MONOTONIC 0 |
195 | # define EV_USE_MONOTONIC 0 |
|
|
196 | # endif |
161 | #endif |
197 | #endif |
162 | |
198 | |
163 | #ifndef EV_USE_REALTIME |
199 | #ifndef EV_USE_REALTIME |
164 | # define EV_USE_REALTIME 0 |
200 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
165 | #endif |
201 | #endif |
166 | |
202 | |
167 | #ifndef EV_USE_NANOSLEEP |
203 | #ifndef EV_USE_NANOSLEEP |
|
|
204 | # if _POSIX_C_SOURCE >= 199309L |
|
|
205 | # define EV_USE_NANOSLEEP 1 |
|
|
206 | # else |
168 | # define EV_USE_NANOSLEEP 0 |
207 | # define EV_USE_NANOSLEEP 0 |
|
|
208 | # endif |
169 | #endif |
209 | #endif |
170 | |
210 | |
171 | #ifndef EV_USE_SELECT |
211 | #ifndef EV_USE_SELECT |
172 | # define EV_USE_SELECT 1 |
212 | # define EV_USE_SELECT 1 |
173 | #endif |
213 | #endif |
… | |
… | |
179 | # define EV_USE_POLL 1 |
219 | # define EV_USE_POLL 1 |
180 | # endif |
220 | # endif |
181 | #endif |
221 | #endif |
182 | |
222 | |
183 | #ifndef EV_USE_EPOLL |
223 | #ifndef EV_USE_EPOLL |
|
|
224 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
|
|
225 | # define EV_USE_EPOLL 1 |
|
|
226 | # else |
184 | # define EV_USE_EPOLL 0 |
227 | # define EV_USE_EPOLL 0 |
|
|
228 | # endif |
185 | #endif |
229 | #endif |
186 | |
230 | |
187 | #ifndef EV_USE_KQUEUE |
231 | #ifndef EV_USE_KQUEUE |
188 | # define EV_USE_KQUEUE 0 |
232 | # define EV_USE_KQUEUE 0 |
189 | #endif |
233 | #endif |
… | |
… | |
191 | #ifndef EV_USE_PORT |
235 | #ifndef EV_USE_PORT |
192 | # define EV_USE_PORT 0 |
236 | # define EV_USE_PORT 0 |
193 | #endif |
237 | #endif |
194 | |
238 | |
195 | #ifndef EV_USE_INOTIFY |
239 | #ifndef EV_USE_INOTIFY |
|
|
240 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
|
|
241 | # define EV_USE_INOTIFY 1 |
|
|
242 | # else |
196 | # define EV_USE_INOTIFY 0 |
243 | # define EV_USE_INOTIFY 0 |
|
|
244 | # endif |
197 | #endif |
245 | #endif |
198 | |
246 | |
199 | #ifndef EV_PID_HASHSIZE |
247 | #ifndef EV_PID_HASHSIZE |
200 | # if EV_MINIMAL |
248 | # if EV_MINIMAL |
201 | # define EV_PID_HASHSIZE 1 |
249 | # define EV_PID_HASHSIZE 1 |
… | |
… | |
210 | # else |
258 | # else |
211 | # define EV_INOTIFY_HASHSIZE 16 |
259 | # define EV_INOTIFY_HASHSIZE 16 |
212 | # endif |
260 | # endif |
213 | #endif |
261 | #endif |
214 | |
262 | |
215 | /**/ |
263 | #ifndef EV_USE_EVENTFD |
|
|
264 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
|
|
265 | # define EV_USE_EVENTFD 1 |
|
|
266 | # else |
|
|
267 | # define EV_USE_EVENTFD 0 |
|
|
268 | # endif |
|
|
269 | #endif |
|
|
270 | |
|
|
271 | #if 0 /* debugging */ |
|
|
272 | # define EV_VERIFY 3 |
|
|
273 | # define EV_USE_4HEAP 1 |
|
|
274 | # define EV_HEAP_CACHE_AT 1 |
|
|
275 | #endif |
|
|
276 | |
|
|
277 | #ifndef EV_VERIFY |
|
|
278 | # define EV_VERIFY !EV_MINIMAL |
|
|
279 | #endif |
|
|
280 | |
|
|
281 | #ifndef EV_USE_4HEAP |
|
|
282 | # define EV_USE_4HEAP !EV_MINIMAL |
|
|
283 | #endif |
|
|
284 | |
|
|
285 | #ifndef EV_HEAP_CACHE_AT |
|
|
286 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
|
|
287 | #endif |
|
|
288 | |
|
|
289 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
|
|
290 | /* which makes programs even slower. might work on other unices, too. */ |
|
|
291 | #if EV_USE_CLOCK_SYSCALL |
|
|
292 | # include <syscall.h> |
|
|
293 | # ifdef SYS_clock_gettime |
|
|
294 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
|
|
295 | # undef EV_USE_MONOTONIC |
|
|
296 | # define EV_USE_MONOTONIC 1 |
|
|
297 | # else |
|
|
298 | # undef EV_USE_CLOCK_SYSCALL |
|
|
299 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
300 | # endif |
|
|
301 | #endif |
|
|
302 | |
|
|
303 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
216 | |
304 | |
217 | #ifndef CLOCK_MONOTONIC |
305 | #ifndef CLOCK_MONOTONIC |
218 | # undef EV_USE_MONOTONIC |
306 | # undef EV_USE_MONOTONIC |
219 | # define EV_USE_MONOTONIC 0 |
307 | # define EV_USE_MONOTONIC 0 |
220 | #endif |
308 | #endif |
… | |
… | |
234 | # include <sys/select.h> |
322 | # include <sys/select.h> |
235 | # endif |
323 | # endif |
236 | #endif |
324 | #endif |
237 | |
325 | |
238 | #if EV_USE_INOTIFY |
326 | #if EV_USE_INOTIFY |
|
|
327 | # include <sys/utsname.h> |
|
|
328 | # include <sys/statfs.h> |
239 | # include <sys/inotify.h> |
329 | # include <sys/inotify.h> |
|
|
330 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
|
|
331 | # ifndef IN_DONT_FOLLOW |
|
|
332 | # undef EV_USE_INOTIFY |
|
|
333 | # define EV_USE_INOTIFY 0 |
|
|
334 | # endif |
240 | #endif |
335 | #endif |
241 | |
336 | |
242 | #if EV_SELECT_IS_WINSOCKET |
337 | #if EV_SELECT_IS_WINSOCKET |
243 | # include <winsock.h> |
338 | # include <winsock.h> |
244 | #endif |
339 | #endif |
245 | |
340 | |
|
|
341 | #if EV_USE_EVENTFD |
|
|
342 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
|
|
343 | # include <stdint.h> |
|
|
344 | # ifdef __cplusplus |
|
|
345 | extern "C" { |
|
|
346 | # endif |
|
|
347 | int eventfd (unsigned int initval, int flags); |
|
|
348 | # ifdef __cplusplus |
|
|
349 | } |
|
|
350 | # endif |
|
|
351 | #endif |
|
|
352 | |
246 | /**/ |
353 | /**/ |
|
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354 | |
|
|
355 | #if EV_VERIFY >= 3 |
|
|
356 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
|
|
357 | #else |
|
|
358 | # define EV_FREQUENT_CHECK do { } while (0) |
|
|
359 | #endif |
247 | |
360 | |
248 | /* |
361 | /* |
249 | * This is used to avoid floating point rounding problems. |
362 | * This is used to avoid floating point rounding problems. |
250 | * It is added to ev_rt_now when scheduling periodics |
363 | * It is added to ev_rt_now when scheduling periodics |
251 | * to ensure progress, time-wise, even when rounding |
364 | * to ensure progress, time-wise, even when rounding |
… | |
… | |
263 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
376 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
264 | # define noinline __attribute__ ((noinline)) |
377 | # define noinline __attribute__ ((noinline)) |
265 | #else |
378 | #else |
266 | # define expect(expr,value) (expr) |
379 | # define expect(expr,value) (expr) |
267 | # define noinline |
380 | # define noinline |
268 | # if __STDC_VERSION__ < 199901L |
381 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
269 | # define inline |
382 | # define inline |
270 | # endif |
383 | # endif |
271 | #endif |
384 | #endif |
272 | |
385 | |
273 | #define expect_false(expr) expect ((expr) != 0, 0) |
386 | #define expect_false(expr) expect ((expr) != 0, 0) |
… | |
… | |
278 | # define inline_speed static noinline |
391 | # define inline_speed static noinline |
279 | #else |
392 | #else |
280 | # define inline_speed static inline |
393 | # define inline_speed static inline |
281 | #endif |
394 | #endif |
282 | |
395 | |
283 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
396 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
397 | |
|
|
398 | #if EV_MINPRI == EV_MAXPRI |
|
|
399 | # define ABSPRI(w) (((W)w), 0) |
|
|
400 | #else |
284 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
401 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
|
|
402 | #endif |
285 | |
403 | |
286 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
404 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
287 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
405 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
288 | |
406 | |
289 | typedef ev_watcher *W; |
407 | typedef ev_watcher *W; |
290 | typedef ev_watcher_list *WL; |
408 | typedef ev_watcher_list *WL; |
291 | typedef ev_watcher_time *WT; |
409 | typedef ev_watcher_time *WT; |
292 | |
410 | |
293 | #if EV_USE_MONOTONIC |
411 | #define ev_active(w) ((W)(w))->active |
|
|
412 | #define ev_at(w) ((WT)(w))->at |
|
|
413 | |
|
|
414 | #if EV_USE_REALTIME |
294 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
415 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
295 | /* giving it a reasonably high chance of working on typical architetcures */ |
416 | /* giving it a reasonably high chance of working on typical architetcures */ |
|
|
417 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
|
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418 | #endif |
|
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419 | |
|
|
420 | #if EV_USE_MONOTONIC |
296 | static sig_atomic_t have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
421 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
297 | #endif |
422 | #endif |
298 | |
423 | |
299 | #ifdef _WIN32 |
424 | #ifdef _WIN32 |
300 | # include "ev_win32.c" |
425 | # include "ev_win32.c" |
301 | #endif |
426 | #endif |
… | |
… | |
309 | { |
434 | { |
310 | syserr_cb = cb; |
435 | syserr_cb = cb; |
311 | } |
436 | } |
312 | |
437 | |
313 | static void noinline |
438 | static void noinline |
314 | syserr (const char *msg) |
439 | ev_syserr (const char *msg) |
315 | { |
440 | { |
316 | if (!msg) |
441 | if (!msg) |
317 | msg = "(libev) system error"; |
442 | msg = "(libev) system error"; |
318 | |
443 | |
319 | if (syserr_cb) |
444 | if (syserr_cb) |
… | |
… | |
323 | perror (msg); |
448 | perror (msg); |
324 | abort (); |
449 | abort (); |
325 | } |
450 | } |
326 | } |
451 | } |
327 | |
452 | |
|
|
453 | static void * |
|
|
454 | ev_realloc_emul (void *ptr, long size) |
|
|
455 | { |
|
|
456 | /* some systems, notably openbsd and darwin, fail to properly |
|
|
457 | * implement realloc (x, 0) (as required by both ansi c-98 and |
|
|
458 | * the single unix specification, so work around them here. |
|
|
459 | */ |
|
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460 | |
|
|
461 | if (size) |
|
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462 | return realloc (ptr, size); |
|
|
463 | |
|
|
464 | free (ptr); |
|
|
465 | return 0; |
|
|
466 | } |
|
|
467 | |
328 | static void *(*alloc)(void *ptr, long size); |
468 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
329 | |
469 | |
330 | void |
470 | void |
331 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
471 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
332 | { |
472 | { |
333 | alloc = cb; |
473 | alloc = cb; |
334 | } |
474 | } |
335 | |
475 | |
336 | inline_speed void * |
476 | inline_speed void * |
337 | ev_realloc (void *ptr, long size) |
477 | ev_realloc (void *ptr, long size) |
338 | { |
478 | { |
339 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
479 | ptr = alloc (ptr, size); |
340 | |
480 | |
341 | if (!ptr && size) |
481 | if (!ptr && size) |
342 | { |
482 | { |
343 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
483 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
344 | abort (); |
484 | abort (); |
… | |
… | |
350 | #define ev_malloc(size) ev_realloc (0, (size)) |
490 | #define ev_malloc(size) ev_realloc (0, (size)) |
351 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
491 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
352 | |
492 | |
353 | /*****************************************************************************/ |
493 | /*****************************************************************************/ |
354 | |
494 | |
|
|
495 | /* set in reify when reification needed */ |
|
|
496 | #define EV_ANFD_REIFY 1 |
|
|
497 | |
|
|
498 | /* file descriptor info structure */ |
355 | typedef struct |
499 | typedef struct |
356 | { |
500 | { |
357 | WL head; |
501 | WL head; |
358 | unsigned char events; |
502 | unsigned char events; /* the events watched for */ |
|
|
503 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
|
|
504 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
359 | unsigned char reify; |
505 | unsigned char unused; |
|
|
506 | #if EV_USE_EPOLL |
|
|
507 | unsigned int egen; /* generation counter to counter epoll bugs */ |
|
|
508 | #endif |
360 | #if EV_SELECT_IS_WINSOCKET |
509 | #if EV_SELECT_IS_WINSOCKET |
361 | SOCKET handle; |
510 | SOCKET handle; |
362 | #endif |
511 | #endif |
363 | } ANFD; |
512 | } ANFD; |
364 | |
513 | |
|
|
514 | /* stores the pending event set for a given watcher */ |
365 | typedef struct |
515 | typedef struct |
366 | { |
516 | { |
367 | W w; |
517 | W w; |
368 | int events; |
518 | int events; /* the pending event set for the given watcher */ |
369 | } ANPENDING; |
519 | } ANPENDING; |
370 | |
520 | |
371 | #if EV_USE_INOTIFY |
521 | #if EV_USE_INOTIFY |
|
|
522 | /* hash table entry per inotify-id */ |
372 | typedef struct |
523 | typedef struct |
373 | { |
524 | { |
374 | WL head; |
525 | WL head; |
375 | } ANFS; |
526 | } ANFS; |
|
|
527 | #endif |
|
|
528 | |
|
|
529 | /* Heap Entry */ |
|
|
530 | #if EV_HEAP_CACHE_AT |
|
|
531 | /* a heap element */ |
|
|
532 | typedef struct { |
|
|
533 | ev_tstamp at; |
|
|
534 | WT w; |
|
|
535 | } ANHE; |
|
|
536 | |
|
|
537 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
|
|
538 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
|
|
539 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
|
|
540 | #else |
|
|
541 | /* a heap element */ |
|
|
542 | typedef WT ANHE; |
|
|
543 | |
|
|
544 | #define ANHE_w(he) (he) |
|
|
545 | #define ANHE_at(he) (he)->at |
|
|
546 | #define ANHE_at_cache(he) |
376 | #endif |
547 | #endif |
377 | |
548 | |
378 | #if EV_MULTIPLICITY |
549 | #if EV_MULTIPLICITY |
379 | |
550 | |
380 | struct ev_loop |
551 | struct ev_loop |
… | |
… | |
399 | |
570 | |
400 | static int ev_default_loop_ptr; |
571 | static int ev_default_loop_ptr; |
401 | |
572 | |
402 | #endif |
573 | #endif |
403 | |
574 | |
|
|
575 | #if EV_MINIMAL < 2 |
|
|
576 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
|
|
577 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
|
|
578 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
|
|
579 | #else |
|
|
580 | # define EV_RELEASE_CB (void)0 |
|
|
581 | # define EV_ACQUIRE_CB (void)0 |
|
|
582 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
|
|
583 | #endif |
|
|
584 | |
|
|
585 | #define EVUNLOOP_RECURSE 0x80 |
|
|
586 | |
404 | /*****************************************************************************/ |
587 | /*****************************************************************************/ |
405 | |
588 | |
|
|
589 | #ifndef EV_HAVE_EV_TIME |
406 | ev_tstamp |
590 | ev_tstamp |
407 | ev_time (void) |
591 | ev_time (void) |
408 | { |
592 | { |
409 | #if EV_USE_REALTIME |
593 | #if EV_USE_REALTIME |
|
|
594 | if (expect_true (have_realtime)) |
|
|
595 | { |
410 | struct timespec ts; |
596 | struct timespec ts; |
411 | clock_gettime (CLOCK_REALTIME, &ts); |
597 | clock_gettime (CLOCK_REALTIME, &ts); |
412 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
598 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
413 | #else |
599 | } |
|
|
600 | #endif |
|
|
601 | |
414 | struct timeval tv; |
602 | struct timeval tv; |
415 | gettimeofday (&tv, 0); |
603 | gettimeofday (&tv, 0); |
416 | return tv.tv_sec + tv.tv_usec * 1e-6; |
604 | return tv.tv_sec + tv.tv_usec * 1e-6; |
417 | #endif |
|
|
418 | } |
605 | } |
|
|
606 | #endif |
419 | |
607 | |
420 | ev_tstamp inline_size |
608 | inline_size ev_tstamp |
421 | get_clock (void) |
609 | get_clock (void) |
422 | { |
610 | { |
423 | #if EV_USE_MONOTONIC |
611 | #if EV_USE_MONOTONIC |
424 | if (expect_true (have_monotonic)) |
612 | if (expect_true (have_monotonic)) |
425 | { |
613 | { |
… | |
… | |
451 | ts.tv_sec = (time_t)delay; |
639 | ts.tv_sec = (time_t)delay; |
452 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
640 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
453 | |
641 | |
454 | nanosleep (&ts, 0); |
642 | nanosleep (&ts, 0); |
455 | #elif defined(_WIN32) |
643 | #elif defined(_WIN32) |
456 | Sleep (delay * 1e3); |
644 | Sleep ((unsigned long)(delay * 1e3)); |
457 | #else |
645 | #else |
458 | struct timeval tv; |
646 | struct timeval tv; |
459 | |
647 | |
460 | tv.tv_sec = (time_t)delay; |
648 | tv.tv_sec = (time_t)delay; |
461 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
649 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
462 | |
650 | |
|
|
651 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
|
|
652 | /* something not guaranteed by newer posix versions, but guaranteed */ |
|
|
653 | /* by older ones */ |
463 | select (0, 0, 0, 0, &tv); |
654 | select (0, 0, 0, 0, &tv); |
464 | #endif |
655 | #endif |
465 | } |
656 | } |
466 | } |
657 | } |
467 | |
658 | |
468 | /*****************************************************************************/ |
659 | /*****************************************************************************/ |
469 | |
660 | |
470 | int inline_size |
661 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
|
|
662 | |
|
|
663 | /* find a suitable new size for the given array, */ |
|
|
664 | /* hopefully by rounding to a ncie-to-malloc size */ |
|
|
665 | inline_size int |
471 | array_nextsize (int elem, int cur, int cnt) |
666 | array_nextsize (int elem, int cur, int cnt) |
472 | { |
667 | { |
473 | int ncur = cur + 1; |
668 | int ncur = cur + 1; |
474 | |
669 | |
475 | do |
670 | do |
476 | ncur <<= 1; |
671 | ncur <<= 1; |
477 | while (cnt > ncur); |
672 | while (cnt > ncur); |
478 | |
673 | |
479 | /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */ |
674 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
480 | if (elem * ncur > 4096) |
675 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
481 | { |
676 | { |
482 | ncur *= elem; |
677 | ncur *= elem; |
483 | ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095; |
678 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
484 | ncur = ncur - sizeof (void *) * 4; |
679 | ncur = ncur - sizeof (void *) * 4; |
485 | ncur /= elem; |
680 | ncur /= elem; |
486 | } |
681 | } |
487 | |
682 | |
488 | return ncur; |
683 | return ncur; |
… | |
… | |
492 | array_realloc (int elem, void *base, int *cur, int cnt) |
687 | array_realloc (int elem, void *base, int *cur, int cnt) |
493 | { |
688 | { |
494 | *cur = array_nextsize (elem, *cur, cnt); |
689 | *cur = array_nextsize (elem, *cur, cnt); |
495 | return ev_realloc (base, elem * *cur); |
690 | return ev_realloc (base, elem * *cur); |
496 | } |
691 | } |
|
|
692 | |
|
|
693 | #define array_init_zero(base,count) \ |
|
|
694 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
497 | |
695 | |
498 | #define array_needsize(type,base,cur,cnt,init) \ |
696 | #define array_needsize(type,base,cur,cnt,init) \ |
499 | if (expect_false ((cnt) > (cur))) \ |
697 | if (expect_false ((cnt) > (cur))) \ |
500 | { \ |
698 | { \ |
501 | int ocur_ = (cur); \ |
699 | int ocur_ = (cur); \ |
… | |
… | |
513 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
711 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
514 | } |
712 | } |
515 | #endif |
713 | #endif |
516 | |
714 | |
517 | #define array_free(stem, idx) \ |
715 | #define array_free(stem, idx) \ |
518 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
716 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
519 | |
717 | |
520 | /*****************************************************************************/ |
718 | /*****************************************************************************/ |
|
|
719 | |
|
|
720 | /* dummy callback for pending events */ |
|
|
721 | static void noinline |
|
|
722 | pendingcb (EV_P_ ev_prepare *w, int revents) |
|
|
723 | { |
|
|
724 | } |
521 | |
725 | |
522 | void noinline |
726 | void noinline |
523 | ev_feed_event (EV_P_ void *w, int revents) |
727 | ev_feed_event (EV_P_ void *w, int revents) |
524 | { |
728 | { |
525 | W w_ = (W)w; |
729 | W w_ = (W)w; |
… | |
… | |
534 | pendings [pri][w_->pending - 1].w = w_; |
738 | pendings [pri][w_->pending - 1].w = w_; |
535 | pendings [pri][w_->pending - 1].events = revents; |
739 | pendings [pri][w_->pending - 1].events = revents; |
536 | } |
740 | } |
537 | } |
741 | } |
538 | |
742 | |
539 | void inline_speed |
743 | inline_speed void |
|
|
744 | feed_reverse (EV_P_ W w) |
|
|
745 | { |
|
|
746 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
|
|
747 | rfeeds [rfeedcnt++] = w; |
|
|
748 | } |
|
|
749 | |
|
|
750 | inline_size void |
|
|
751 | feed_reverse_done (EV_P_ int revents) |
|
|
752 | { |
|
|
753 | do |
|
|
754 | ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents); |
|
|
755 | while (rfeedcnt); |
|
|
756 | } |
|
|
757 | |
|
|
758 | inline_speed void |
540 | queue_events (EV_P_ W *events, int eventcnt, int type) |
759 | queue_events (EV_P_ W *events, int eventcnt, int type) |
541 | { |
760 | { |
542 | int i; |
761 | int i; |
543 | |
762 | |
544 | for (i = 0; i < eventcnt; ++i) |
763 | for (i = 0; i < eventcnt; ++i) |
545 | ev_feed_event (EV_A_ events [i], type); |
764 | ev_feed_event (EV_A_ events [i], type); |
546 | } |
765 | } |
547 | |
766 | |
548 | /*****************************************************************************/ |
767 | /*****************************************************************************/ |
549 | |
768 | |
550 | void inline_size |
769 | inline_speed void |
551 | anfds_init (ANFD *base, int count) |
|
|
552 | { |
|
|
553 | while (count--) |
|
|
554 | { |
|
|
555 | base->head = 0; |
|
|
556 | base->events = EV_NONE; |
|
|
557 | base->reify = 0; |
|
|
558 | |
|
|
559 | ++base; |
|
|
560 | } |
|
|
561 | } |
|
|
562 | |
|
|
563 | void inline_speed |
|
|
564 | fd_event (EV_P_ int fd, int revents) |
770 | fd_event_nc (EV_P_ int fd, int revents) |
565 | { |
771 | { |
566 | ANFD *anfd = anfds + fd; |
772 | ANFD *anfd = anfds + fd; |
567 | ev_io *w; |
773 | ev_io *w; |
568 | |
774 | |
569 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
775 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
573 | if (ev) |
779 | if (ev) |
574 | ev_feed_event (EV_A_ (W)w, ev); |
780 | ev_feed_event (EV_A_ (W)w, ev); |
575 | } |
781 | } |
576 | } |
782 | } |
577 | |
783 | |
|
|
784 | /* do not submit kernel events for fds that have reify set */ |
|
|
785 | /* because that means they changed while we were polling for new events */ |
|
|
786 | inline_speed void |
|
|
787 | fd_event (EV_P_ int fd, int revents) |
|
|
788 | { |
|
|
789 | ANFD *anfd = anfds + fd; |
|
|
790 | |
|
|
791 | if (expect_true (!anfd->reify)) |
|
|
792 | fd_event_nc (EV_A_ fd, revents); |
|
|
793 | } |
|
|
794 | |
578 | void |
795 | void |
579 | ev_feed_fd_event (EV_P_ int fd, int revents) |
796 | ev_feed_fd_event (EV_P_ int fd, int revents) |
580 | { |
797 | { |
581 | if (fd >= 0 && fd < anfdmax) |
798 | if (fd >= 0 && fd < anfdmax) |
582 | fd_event (EV_A_ fd, revents); |
799 | fd_event_nc (EV_A_ fd, revents); |
583 | } |
800 | } |
584 | |
801 | |
585 | void inline_size |
802 | /* make sure the external fd watch events are in-sync */ |
|
|
803 | /* with the kernel/libev internal state */ |
|
|
804 | inline_size void |
586 | fd_reify (EV_P) |
805 | fd_reify (EV_P) |
587 | { |
806 | { |
588 | int i; |
807 | int i; |
589 | |
808 | |
590 | for (i = 0; i < fdchangecnt; ++i) |
809 | for (i = 0; i < fdchangecnt; ++i) |
… | |
… | |
599 | events |= (unsigned char)w->events; |
818 | events |= (unsigned char)w->events; |
600 | |
819 | |
601 | #if EV_SELECT_IS_WINSOCKET |
820 | #if EV_SELECT_IS_WINSOCKET |
602 | if (events) |
821 | if (events) |
603 | { |
822 | { |
604 | unsigned long argp; |
823 | unsigned long arg; |
605 | #ifdef EV_FD_TO_WIN32_HANDLE |
824 | #ifdef EV_FD_TO_WIN32_HANDLE |
606 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
825 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
607 | #else |
826 | #else |
608 | anfd->handle = _get_osfhandle (fd); |
827 | anfd->handle = _get_osfhandle (fd); |
609 | #endif |
828 | #endif |
610 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
829 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
611 | } |
830 | } |
612 | #endif |
831 | #endif |
613 | |
832 | |
614 | { |
833 | { |
615 | unsigned char o_events = anfd->events; |
834 | unsigned char o_events = anfd->events; |
616 | unsigned char o_reify = anfd->reify; |
835 | unsigned char o_reify = anfd->reify; |
617 | |
836 | |
618 | anfd->reify = 0; |
837 | anfd->reify = 0; |
619 | anfd->events = events; |
838 | anfd->events = events; |
620 | |
839 | |
621 | if (o_events != events || o_reify & EV_IOFDSET) |
840 | if (o_events != events || o_reify & EV__IOFDSET) |
622 | backend_modify (EV_A_ fd, o_events, events); |
841 | backend_modify (EV_A_ fd, o_events, events); |
623 | } |
842 | } |
624 | } |
843 | } |
625 | |
844 | |
626 | fdchangecnt = 0; |
845 | fdchangecnt = 0; |
627 | } |
846 | } |
628 | |
847 | |
629 | void inline_size |
848 | /* something about the given fd changed */ |
|
|
849 | inline_size void |
630 | fd_change (EV_P_ int fd, int flags) |
850 | fd_change (EV_P_ int fd, int flags) |
631 | { |
851 | { |
632 | unsigned char reify = anfds [fd].reify; |
852 | unsigned char reify = anfds [fd].reify; |
633 | anfds [fd].reify |= flags; |
853 | anfds [fd].reify |= flags; |
634 | |
854 | |
… | |
… | |
638 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
858 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
639 | fdchanges [fdchangecnt - 1] = fd; |
859 | fdchanges [fdchangecnt - 1] = fd; |
640 | } |
860 | } |
641 | } |
861 | } |
642 | |
862 | |
643 | void inline_speed |
863 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
|
|
864 | inline_speed void |
644 | fd_kill (EV_P_ int fd) |
865 | fd_kill (EV_P_ int fd) |
645 | { |
866 | { |
646 | ev_io *w; |
867 | ev_io *w; |
647 | |
868 | |
648 | while ((w = (ev_io *)anfds [fd].head)) |
869 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
650 | ev_io_stop (EV_A_ w); |
871 | ev_io_stop (EV_A_ w); |
651 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
872 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
652 | } |
873 | } |
653 | } |
874 | } |
654 | |
875 | |
655 | int inline_size |
876 | /* check whether the given fd is atcually valid, for error recovery */ |
|
|
877 | inline_size int |
656 | fd_valid (int fd) |
878 | fd_valid (int fd) |
657 | { |
879 | { |
658 | #ifdef _WIN32 |
880 | #ifdef _WIN32 |
659 | return _get_osfhandle (fd) != -1; |
881 | return _get_osfhandle (fd) != -1; |
660 | #else |
882 | #else |
… | |
… | |
668 | { |
890 | { |
669 | int fd; |
891 | int fd; |
670 | |
892 | |
671 | for (fd = 0; fd < anfdmax; ++fd) |
893 | for (fd = 0; fd < anfdmax; ++fd) |
672 | if (anfds [fd].events) |
894 | if (anfds [fd].events) |
673 | if (!fd_valid (fd) == -1 && errno == EBADF) |
895 | if (!fd_valid (fd) && errno == EBADF) |
674 | fd_kill (EV_A_ fd); |
896 | fd_kill (EV_A_ fd); |
675 | } |
897 | } |
676 | |
898 | |
677 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
899 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
678 | static void noinline |
900 | static void noinline |
… | |
… | |
696 | |
918 | |
697 | for (fd = 0; fd < anfdmax; ++fd) |
919 | for (fd = 0; fd < anfdmax; ++fd) |
698 | if (anfds [fd].events) |
920 | if (anfds [fd].events) |
699 | { |
921 | { |
700 | anfds [fd].events = 0; |
922 | anfds [fd].events = 0; |
|
|
923 | anfds [fd].emask = 0; |
701 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
924 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
702 | } |
925 | } |
703 | } |
926 | } |
704 | |
927 | |
705 | /*****************************************************************************/ |
928 | /*****************************************************************************/ |
706 | |
929 | |
707 | void inline_speed |
930 | /* |
708 | upheap (WT *heap, int k) |
931 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
709 | { |
932 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
710 | WT w = heap [k]; |
933 | * the branching factor of the d-tree. |
|
|
934 | */ |
711 | |
935 | |
712 | while (k) |
936 | /* |
713 | { |
937 | * at the moment we allow libev the luxury of two heaps, |
714 | int p = (k - 1) >> 1; |
938 | * a small-code-size 2-heap one and a ~1.5kb larger 4-heap |
|
|
939 | * which is more cache-efficient. |
|
|
940 | * the difference is about 5% with 50000+ watchers. |
|
|
941 | */ |
|
|
942 | #if EV_USE_4HEAP |
715 | |
943 | |
716 | if (heap [p]->at <= w->at) |
944 | #define DHEAP 4 |
|
|
945 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
|
|
946 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
|
|
947 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
|
|
948 | |
|
|
949 | /* away from the root */ |
|
|
950 | inline_speed void |
|
|
951 | downheap (ANHE *heap, int N, int k) |
|
|
952 | { |
|
|
953 | ANHE he = heap [k]; |
|
|
954 | ANHE *E = heap + N + HEAP0; |
|
|
955 | |
|
|
956 | for (;;) |
|
|
957 | { |
|
|
958 | ev_tstamp minat; |
|
|
959 | ANHE *minpos; |
|
|
960 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
|
|
961 | |
|
|
962 | /* find minimum child */ |
|
|
963 | if (expect_true (pos + DHEAP - 1 < E)) |
|
|
964 | { |
|
|
965 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
966 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
967 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
968 | if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
969 | } |
|
|
970 | else if (pos < E) |
|
|
971 | { |
|
|
972 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
973 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
974 | if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
975 | if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
976 | } |
|
|
977 | else |
717 | break; |
978 | break; |
718 | |
979 | |
|
|
980 | if (ANHE_at (he) <= minat) |
|
|
981 | break; |
|
|
982 | |
|
|
983 | heap [k] = *minpos; |
|
|
984 | ev_active (ANHE_w (*minpos)) = k; |
|
|
985 | |
|
|
986 | k = minpos - heap; |
|
|
987 | } |
|
|
988 | |
|
|
989 | heap [k] = he; |
|
|
990 | ev_active (ANHE_w (he)) = k; |
|
|
991 | } |
|
|
992 | |
|
|
993 | #else /* 4HEAP */ |
|
|
994 | |
|
|
995 | #define HEAP0 1 |
|
|
996 | #define HPARENT(k) ((k) >> 1) |
|
|
997 | #define UPHEAP_DONE(p,k) (!(p)) |
|
|
998 | |
|
|
999 | /* away from the root */ |
|
|
1000 | inline_speed void |
|
|
1001 | downheap (ANHE *heap, int N, int k) |
|
|
1002 | { |
|
|
1003 | ANHE he = heap [k]; |
|
|
1004 | |
|
|
1005 | for (;;) |
|
|
1006 | { |
|
|
1007 | int c = k << 1; |
|
|
1008 | |
|
|
1009 | if (c > N + HEAP0 - 1) |
|
|
1010 | break; |
|
|
1011 | |
|
|
1012 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
|
|
1013 | ? 1 : 0; |
|
|
1014 | |
|
|
1015 | if (ANHE_at (he) <= ANHE_at (heap [c])) |
|
|
1016 | break; |
|
|
1017 | |
|
|
1018 | heap [k] = heap [c]; |
|
|
1019 | ev_active (ANHE_w (heap [k])) = k; |
|
|
1020 | |
|
|
1021 | k = c; |
|
|
1022 | } |
|
|
1023 | |
|
|
1024 | heap [k] = he; |
|
|
1025 | ev_active (ANHE_w (he)) = k; |
|
|
1026 | } |
|
|
1027 | #endif |
|
|
1028 | |
|
|
1029 | /* towards the root */ |
|
|
1030 | inline_speed void |
|
|
1031 | upheap (ANHE *heap, int k) |
|
|
1032 | { |
|
|
1033 | ANHE he = heap [k]; |
|
|
1034 | |
|
|
1035 | for (;;) |
|
|
1036 | { |
|
|
1037 | int p = HPARENT (k); |
|
|
1038 | |
|
|
1039 | if (UPHEAP_DONE (p, k) || ANHE_at (heap [p]) <= ANHE_at (he)) |
|
|
1040 | break; |
|
|
1041 | |
719 | heap [k] = heap [p]; |
1042 | heap [k] = heap [p]; |
720 | ((W)heap [k])->active = k + 1; |
1043 | ev_active (ANHE_w (heap [k])) = k; |
721 | k = p; |
1044 | k = p; |
722 | } |
1045 | } |
723 | |
1046 | |
724 | heap [k] = w; |
1047 | heap [k] = he; |
725 | ((W)heap [k])->active = k + 1; |
1048 | ev_active (ANHE_w (he)) = k; |
726 | } |
1049 | } |
727 | |
1050 | |
728 | void inline_speed |
1051 | /* move an element suitably so it is in a correct place */ |
729 | downheap (WT *heap, int N, int k) |
1052 | inline_size void |
730 | { |
|
|
731 | WT w = heap [k]; |
|
|
732 | |
|
|
733 | for (;;) |
|
|
734 | { |
|
|
735 | int c = (k << 1) + 1; |
|
|
736 | |
|
|
737 | if (c >= N) |
|
|
738 | break; |
|
|
739 | |
|
|
740 | c += c + 1 < N && heap [c]->at > heap [c + 1]->at |
|
|
741 | ? 1 : 0; |
|
|
742 | |
|
|
743 | if (w->at <= heap [c]->at) |
|
|
744 | break; |
|
|
745 | |
|
|
746 | heap [k] = heap [c]; |
|
|
747 | ((W)heap [k])->active = k + 1; |
|
|
748 | |
|
|
749 | k = c; |
|
|
750 | } |
|
|
751 | |
|
|
752 | heap [k] = w; |
|
|
753 | ((W)heap [k])->active = k + 1; |
|
|
754 | } |
|
|
755 | |
|
|
756 | void inline_size |
|
|
757 | adjustheap (WT *heap, int N, int k) |
1053 | adjustheap (ANHE *heap, int N, int k) |
758 | { |
1054 | { |
|
|
1055 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
759 | upheap (heap, k); |
1056 | upheap (heap, k); |
|
|
1057 | else |
760 | downheap (heap, N, k); |
1058 | downheap (heap, N, k); |
|
|
1059 | } |
|
|
1060 | |
|
|
1061 | /* rebuild the heap: this function is used only once and executed rarely */ |
|
|
1062 | inline_size void |
|
|
1063 | reheap (ANHE *heap, int N) |
|
|
1064 | { |
|
|
1065 | int i; |
|
|
1066 | |
|
|
1067 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
|
|
1068 | /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */ |
|
|
1069 | for (i = 0; i < N; ++i) |
|
|
1070 | upheap (heap, i + HEAP0); |
761 | } |
1071 | } |
762 | |
1072 | |
763 | /*****************************************************************************/ |
1073 | /*****************************************************************************/ |
764 | |
1074 | |
|
|
1075 | /* associate signal watchers to a signal signal */ |
765 | typedef struct |
1076 | typedef struct |
766 | { |
1077 | { |
767 | WL head; |
1078 | WL head; |
768 | sig_atomic_t volatile gotsig; |
1079 | EV_ATOMIC_T gotsig; |
769 | } ANSIG; |
1080 | } ANSIG; |
770 | |
1081 | |
771 | static ANSIG *signals; |
1082 | static ANSIG *signals; |
772 | static int signalmax; |
1083 | static int signalmax; |
773 | |
1084 | |
774 | static int sigpipe [2]; |
1085 | static EV_ATOMIC_T gotsig; |
775 | static sig_atomic_t volatile gotsig; |
|
|
776 | static ev_io sigev; |
|
|
777 | |
1086 | |
778 | void inline_size |
1087 | /*****************************************************************************/ |
779 | signals_init (ANSIG *base, int count) |
|
|
780 | { |
|
|
781 | while (count--) |
|
|
782 | { |
|
|
783 | base->head = 0; |
|
|
784 | base->gotsig = 0; |
|
|
785 | |
1088 | |
786 | ++base; |
1089 | /* used to prepare libev internal fd's */ |
787 | } |
1090 | /* this is not fork-safe */ |
788 | } |
1091 | inline_speed void |
789 | |
|
|
790 | static void |
|
|
791 | sighandler (int signum) |
|
|
792 | { |
|
|
793 | #if _WIN32 |
|
|
794 | signal (signum, sighandler); |
|
|
795 | #endif |
|
|
796 | |
|
|
797 | signals [signum - 1].gotsig = 1; |
|
|
798 | |
|
|
799 | if (!gotsig) |
|
|
800 | { |
|
|
801 | int old_errno = errno; |
|
|
802 | gotsig = 1; |
|
|
803 | write (sigpipe [1], &signum, 1); |
|
|
804 | errno = old_errno; |
|
|
805 | } |
|
|
806 | } |
|
|
807 | |
|
|
808 | void noinline |
|
|
809 | ev_feed_signal_event (EV_P_ int signum) |
|
|
810 | { |
|
|
811 | WL w; |
|
|
812 | |
|
|
813 | #if EV_MULTIPLICITY |
|
|
814 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
815 | #endif |
|
|
816 | |
|
|
817 | --signum; |
|
|
818 | |
|
|
819 | if (signum < 0 || signum >= signalmax) |
|
|
820 | return; |
|
|
821 | |
|
|
822 | signals [signum].gotsig = 0; |
|
|
823 | |
|
|
824 | for (w = signals [signum].head; w; w = w->next) |
|
|
825 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
826 | } |
|
|
827 | |
|
|
828 | static void |
|
|
829 | sigcb (EV_P_ ev_io *iow, int revents) |
|
|
830 | { |
|
|
831 | int signum; |
|
|
832 | |
|
|
833 | read (sigpipe [0], &revents, 1); |
|
|
834 | gotsig = 0; |
|
|
835 | |
|
|
836 | for (signum = signalmax; signum--; ) |
|
|
837 | if (signals [signum].gotsig) |
|
|
838 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
839 | } |
|
|
840 | |
|
|
841 | void inline_speed |
|
|
842 | fd_intern (int fd) |
1092 | fd_intern (int fd) |
843 | { |
1093 | { |
844 | #ifdef _WIN32 |
1094 | #ifdef _WIN32 |
845 | int arg = 1; |
1095 | unsigned long arg = 1; |
846 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
1096 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
847 | #else |
1097 | #else |
848 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
1098 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
849 | fcntl (fd, F_SETFL, O_NONBLOCK); |
1099 | fcntl (fd, F_SETFL, O_NONBLOCK); |
850 | #endif |
1100 | #endif |
851 | } |
1101 | } |
852 | |
1102 | |
853 | static void noinline |
1103 | static void noinline |
854 | siginit (EV_P) |
1104 | evpipe_init (EV_P) |
855 | { |
1105 | { |
|
|
1106 | if (!ev_is_active (&pipe_w)) |
|
|
1107 | { |
|
|
1108 | #if EV_USE_EVENTFD |
|
|
1109 | if ((evfd = eventfd (0, 0)) >= 0) |
|
|
1110 | { |
|
|
1111 | evpipe [0] = -1; |
|
|
1112 | fd_intern (evfd); |
|
|
1113 | ev_io_set (&pipe_w, evfd, EV_READ); |
|
|
1114 | } |
|
|
1115 | else |
|
|
1116 | #endif |
|
|
1117 | { |
|
|
1118 | while (pipe (evpipe)) |
|
|
1119 | ev_syserr ("(libev) error creating signal/async pipe"); |
|
|
1120 | |
856 | fd_intern (sigpipe [0]); |
1121 | fd_intern (evpipe [0]); |
857 | fd_intern (sigpipe [1]); |
1122 | fd_intern (evpipe [1]); |
|
|
1123 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
|
|
1124 | } |
858 | |
1125 | |
859 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
|
|
860 | ev_io_start (EV_A_ &sigev); |
1126 | ev_io_start (EV_A_ &pipe_w); |
861 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1127 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
1128 | } |
|
|
1129 | } |
|
|
1130 | |
|
|
1131 | inline_size void |
|
|
1132 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1133 | { |
|
|
1134 | if (!*flag) |
|
|
1135 | { |
|
|
1136 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1137 | |
|
|
1138 | *flag = 1; |
|
|
1139 | |
|
|
1140 | #if EV_USE_EVENTFD |
|
|
1141 | if (evfd >= 0) |
|
|
1142 | { |
|
|
1143 | uint64_t counter = 1; |
|
|
1144 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
1145 | } |
|
|
1146 | else |
|
|
1147 | #endif |
|
|
1148 | write (evpipe [1], &old_errno, 1); |
|
|
1149 | |
|
|
1150 | errno = old_errno; |
|
|
1151 | } |
|
|
1152 | } |
|
|
1153 | |
|
|
1154 | /* called whenever the libev signal pipe */ |
|
|
1155 | /* got some events (signal, async) */ |
|
|
1156 | static void |
|
|
1157 | pipecb (EV_P_ ev_io *iow, int revents) |
|
|
1158 | { |
|
|
1159 | #if EV_USE_EVENTFD |
|
|
1160 | if (evfd >= 0) |
|
|
1161 | { |
|
|
1162 | uint64_t counter; |
|
|
1163 | read (evfd, &counter, sizeof (uint64_t)); |
|
|
1164 | } |
|
|
1165 | else |
|
|
1166 | #endif |
|
|
1167 | { |
|
|
1168 | char dummy; |
|
|
1169 | read (evpipe [0], &dummy, 1); |
|
|
1170 | } |
|
|
1171 | |
|
|
1172 | if (gotsig && ev_is_default_loop (EV_A)) |
|
|
1173 | { |
|
|
1174 | int signum; |
|
|
1175 | gotsig = 0; |
|
|
1176 | |
|
|
1177 | for (signum = signalmax; signum--; ) |
|
|
1178 | if (signals [signum].gotsig) |
|
|
1179 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
1180 | } |
|
|
1181 | |
|
|
1182 | #if EV_ASYNC_ENABLE |
|
|
1183 | if (gotasync) |
|
|
1184 | { |
|
|
1185 | int i; |
|
|
1186 | gotasync = 0; |
|
|
1187 | |
|
|
1188 | for (i = asynccnt; i--; ) |
|
|
1189 | if (asyncs [i]->sent) |
|
|
1190 | { |
|
|
1191 | asyncs [i]->sent = 0; |
|
|
1192 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
|
|
1193 | } |
|
|
1194 | } |
|
|
1195 | #endif |
862 | } |
1196 | } |
863 | |
1197 | |
864 | /*****************************************************************************/ |
1198 | /*****************************************************************************/ |
865 | |
1199 | |
|
|
1200 | static void |
|
|
1201 | ev_sighandler (int signum) |
|
|
1202 | { |
|
|
1203 | #if EV_MULTIPLICITY |
|
|
1204 | struct ev_loop *loop = &default_loop_struct; |
|
|
1205 | #endif |
|
|
1206 | |
|
|
1207 | #if _WIN32 |
|
|
1208 | signal (signum, ev_sighandler); |
|
|
1209 | #endif |
|
|
1210 | |
|
|
1211 | signals [signum - 1].gotsig = 1; |
|
|
1212 | evpipe_write (EV_A_ &gotsig); |
|
|
1213 | } |
|
|
1214 | |
|
|
1215 | void noinline |
|
|
1216 | ev_feed_signal_event (EV_P_ int signum) |
|
|
1217 | { |
|
|
1218 | WL w; |
|
|
1219 | |
|
|
1220 | #if EV_MULTIPLICITY |
|
|
1221 | assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1222 | #endif |
|
|
1223 | |
|
|
1224 | --signum; |
|
|
1225 | |
|
|
1226 | if (signum < 0 || signum >= signalmax) |
|
|
1227 | return; |
|
|
1228 | |
|
|
1229 | signals [signum].gotsig = 0; |
|
|
1230 | |
|
|
1231 | for (w = signals [signum].head; w; w = w->next) |
|
|
1232 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
1233 | } |
|
|
1234 | |
|
|
1235 | /*****************************************************************************/ |
|
|
1236 | |
866 | static WL childs [EV_PID_HASHSIZE]; |
1237 | static WL childs [EV_PID_HASHSIZE]; |
867 | |
1238 | |
868 | #ifndef _WIN32 |
1239 | #ifndef _WIN32 |
869 | |
1240 | |
870 | static ev_signal childev; |
1241 | static ev_signal childev; |
871 | |
1242 | |
872 | void inline_speed |
1243 | #ifndef WIFCONTINUED |
|
|
1244 | # define WIFCONTINUED(status) 0 |
|
|
1245 | #endif |
|
|
1246 | |
|
|
1247 | /* handle a single child status event */ |
|
|
1248 | inline_speed void |
873 | child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) |
1249 | child_reap (EV_P_ int chain, int pid, int status) |
874 | { |
1250 | { |
875 | ev_child *w; |
1251 | ev_child *w; |
|
|
1252 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
876 | |
1253 | |
877 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1254 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1255 | { |
878 | if (w->pid == pid || !w->pid) |
1256 | if ((w->pid == pid || !w->pid) |
|
|
1257 | && (!traced || (w->flags & 1))) |
879 | { |
1258 | { |
880 | ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */ |
1259 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
881 | w->rpid = pid; |
1260 | w->rpid = pid; |
882 | w->rstatus = status; |
1261 | w->rstatus = status; |
883 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
1262 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
884 | } |
1263 | } |
|
|
1264 | } |
885 | } |
1265 | } |
886 | |
1266 | |
887 | #ifndef WCONTINUED |
1267 | #ifndef WCONTINUED |
888 | # define WCONTINUED 0 |
1268 | # define WCONTINUED 0 |
889 | #endif |
1269 | #endif |
890 | |
1270 | |
|
|
1271 | /* called on sigchld etc., calls waitpid */ |
891 | static void |
1272 | static void |
892 | childcb (EV_P_ ev_signal *sw, int revents) |
1273 | childcb (EV_P_ ev_signal *sw, int revents) |
893 | { |
1274 | { |
894 | int pid, status; |
1275 | int pid, status; |
895 | |
1276 | |
… | |
… | |
898 | if (!WCONTINUED |
1279 | if (!WCONTINUED |
899 | || errno != EINVAL |
1280 | || errno != EINVAL |
900 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
1281 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
901 | return; |
1282 | return; |
902 | |
1283 | |
903 | /* make sure we are called again until all childs have been reaped */ |
1284 | /* make sure we are called again until all children have been reaped */ |
904 | /* we need to do it this way so that the callback gets called before we continue */ |
1285 | /* we need to do it this way so that the callback gets called before we continue */ |
905 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1286 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
906 | |
1287 | |
907 | child_reap (EV_A_ sw, pid, pid, status); |
1288 | child_reap (EV_A_ pid, pid, status); |
908 | if (EV_PID_HASHSIZE > 1) |
1289 | if (EV_PID_HASHSIZE > 1) |
909 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1290 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
910 | } |
1291 | } |
911 | |
1292 | |
912 | #endif |
1293 | #endif |
913 | |
1294 | |
914 | /*****************************************************************************/ |
1295 | /*****************************************************************************/ |
… | |
… | |
976 | /* kqueue is borked on everything but netbsd apparently */ |
1357 | /* kqueue is borked on everything but netbsd apparently */ |
977 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1358 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
978 | flags &= ~EVBACKEND_KQUEUE; |
1359 | flags &= ~EVBACKEND_KQUEUE; |
979 | #endif |
1360 | #endif |
980 | #ifdef __APPLE__ |
1361 | #ifdef __APPLE__ |
981 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
1362 | /* only select works correctly on that "unix-certified" platform */ |
982 | flags &= ~EVBACKEND_POLL; |
1363 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
|
|
1364 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
983 | #endif |
1365 | #endif |
984 | |
1366 | |
985 | return flags; |
1367 | return flags; |
986 | } |
1368 | } |
987 | |
1369 | |
… | |
… | |
1001 | ev_backend (EV_P) |
1383 | ev_backend (EV_P) |
1002 | { |
1384 | { |
1003 | return backend; |
1385 | return backend; |
1004 | } |
1386 | } |
1005 | |
1387 | |
|
|
1388 | #if EV_MINIMAL < 2 |
1006 | unsigned int |
1389 | unsigned int |
1007 | ev_loop_count (EV_P) |
1390 | ev_loop_count (EV_P) |
1008 | { |
1391 | { |
1009 | return loop_count; |
1392 | return loop_count; |
1010 | } |
1393 | } |
1011 | |
1394 | |
|
|
1395 | unsigned int |
|
|
1396 | ev_loop_depth (EV_P) |
|
|
1397 | { |
|
|
1398 | return loop_depth; |
|
|
1399 | } |
|
|
1400 | |
1012 | void |
1401 | void |
1013 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1402 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1014 | { |
1403 | { |
1015 | io_blocktime = interval; |
1404 | io_blocktime = interval; |
1016 | } |
1405 | } |
… | |
… | |
1019 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1408 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1020 | { |
1409 | { |
1021 | timeout_blocktime = interval; |
1410 | timeout_blocktime = interval; |
1022 | } |
1411 | } |
1023 | |
1412 | |
|
|
1413 | void |
|
|
1414 | ev_set_userdata (EV_P_ void *data) |
|
|
1415 | { |
|
|
1416 | userdata = data; |
|
|
1417 | } |
|
|
1418 | |
|
|
1419 | void * |
|
|
1420 | ev_userdata (EV_P) |
|
|
1421 | { |
|
|
1422 | return userdata; |
|
|
1423 | } |
|
|
1424 | |
|
|
1425 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
|
|
1426 | { |
|
|
1427 | invoke_cb = invoke_pending_cb; |
|
|
1428 | } |
|
|
1429 | |
|
|
1430 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
|
|
1431 | { |
|
|
1432 | release_cb = release; |
|
|
1433 | acquire_cb = acquire; |
|
|
1434 | } |
|
|
1435 | #endif |
|
|
1436 | |
|
|
1437 | /* initialise a loop structure, must be zero-initialised */ |
1024 | static void noinline |
1438 | static void noinline |
1025 | loop_init (EV_P_ unsigned int flags) |
1439 | loop_init (EV_P_ unsigned int flags) |
1026 | { |
1440 | { |
1027 | if (!backend) |
1441 | if (!backend) |
1028 | { |
1442 | { |
|
|
1443 | #if EV_USE_REALTIME |
|
|
1444 | if (!have_realtime) |
|
|
1445 | { |
|
|
1446 | struct timespec ts; |
|
|
1447 | |
|
|
1448 | if (!clock_gettime (CLOCK_REALTIME, &ts)) |
|
|
1449 | have_realtime = 1; |
|
|
1450 | } |
|
|
1451 | #endif |
|
|
1452 | |
1029 | #if EV_USE_MONOTONIC |
1453 | #if EV_USE_MONOTONIC |
|
|
1454 | if (!have_monotonic) |
1030 | { |
1455 | { |
1031 | struct timespec ts; |
1456 | struct timespec ts; |
|
|
1457 | |
1032 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1458 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1033 | have_monotonic = 1; |
1459 | have_monotonic = 1; |
1034 | } |
1460 | } |
1035 | #endif |
1461 | #endif |
1036 | |
1462 | |
1037 | ev_rt_now = ev_time (); |
1463 | ev_rt_now = ev_time (); |
1038 | mn_now = get_clock (); |
1464 | mn_now = get_clock (); |
1039 | now_floor = mn_now; |
1465 | now_floor = mn_now; |
1040 | rtmn_diff = ev_rt_now - mn_now; |
1466 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1467 | #if EV_MINIMAL < 2 |
|
|
1468 | invoke_cb = ev_invoke_pending; |
|
|
1469 | #endif |
1041 | |
1470 | |
1042 | io_blocktime = 0.; |
1471 | io_blocktime = 0.; |
1043 | timeout_blocktime = 0.; |
1472 | timeout_blocktime = 0.; |
|
|
1473 | backend = 0; |
|
|
1474 | backend_fd = -1; |
|
|
1475 | gotasync = 0; |
|
|
1476 | #if EV_USE_INOTIFY |
|
|
1477 | fs_fd = -2; |
|
|
1478 | #endif |
1044 | |
1479 | |
1045 | /* pid check not overridable via env */ |
1480 | /* pid check not overridable via env */ |
1046 | #ifndef _WIN32 |
1481 | #ifndef _WIN32 |
1047 | if (flags & EVFLAG_FORKCHECK) |
1482 | if (flags & EVFLAG_FORKCHECK) |
1048 | curpid = getpid (); |
1483 | curpid = getpid (); |
… | |
… | |
1051 | if (!(flags & EVFLAG_NOENV) |
1486 | if (!(flags & EVFLAG_NOENV) |
1052 | && !enable_secure () |
1487 | && !enable_secure () |
1053 | && getenv ("LIBEV_FLAGS")) |
1488 | && getenv ("LIBEV_FLAGS")) |
1054 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1489 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1055 | |
1490 | |
1056 | if (!(flags & 0x0000ffffUL)) |
1491 | if (!(flags & 0x0000ffffU)) |
1057 | flags |= ev_recommended_backends (); |
1492 | flags |= ev_recommended_backends (); |
1058 | |
|
|
1059 | backend = 0; |
|
|
1060 | backend_fd = -1; |
|
|
1061 | #if EV_USE_INOTIFY |
|
|
1062 | fs_fd = -2; |
|
|
1063 | #endif |
|
|
1064 | |
1493 | |
1065 | #if EV_USE_PORT |
1494 | #if EV_USE_PORT |
1066 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1495 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1067 | #endif |
1496 | #endif |
1068 | #if EV_USE_KQUEUE |
1497 | #if EV_USE_KQUEUE |
… | |
… | |
1076 | #endif |
1505 | #endif |
1077 | #if EV_USE_SELECT |
1506 | #if EV_USE_SELECT |
1078 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1507 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1079 | #endif |
1508 | #endif |
1080 | |
1509 | |
|
|
1510 | ev_prepare_init (&pending_w, pendingcb); |
|
|
1511 | |
1081 | ev_init (&sigev, sigcb); |
1512 | ev_init (&pipe_w, pipecb); |
1082 | ev_set_priority (&sigev, EV_MAXPRI); |
1513 | ev_set_priority (&pipe_w, EV_MAXPRI); |
1083 | } |
1514 | } |
1084 | } |
1515 | } |
1085 | |
1516 | |
|
|
1517 | /* free up a loop structure */ |
1086 | static void noinline |
1518 | static void noinline |
1087 | loop_destroy (EV_P) |
1519 | loop_destroy (EV_P) |
1088 | { |
1520 | { |
1089 | int i; |
1521 | int i; |
|
|
1522 | |
|
|
1523 | if (ev_is_active (&pipe_w)) |
|
|
1524 | { |
|
|
1525 | ev_ref (EV_A); /* signal watcher */ |
|
|
1526 | ev_io_stop (EV_A_ &pipe_w); |
|
|
1527 | |
|
|
1528 | #if EV_USE_EVENTFD |
|
|
1529 | if (evfd >= 0) |
|
|
1530 | close (evfd); |
|
|
1531 | #endif |
|
|
1532 | |
|
|
1533 | if (evpipe [0] >= 0) |
|
|
1534 | { |
|
|
1535 | close (evpipe [0]); |
|
|
1536 | close (evpipe [1]); |
|
|
1537 | } |
|
|
1538 | } |
1090 | |
1539 | |
1091 | #if EV_USE_INOTIFY |
1540 | #if EV_USE_INOTIFY |
1092 | if (fs_fd >= 0) |
1541 | if (fs_fd >= 0) |
1093 | close (fs_fd); |
1542 | close (fs_fd); |
1094 | #endif |
1543 | #endif |
… | |
… | |
1121 | } |
1570 | } |
1122 | |
1571 | |
1123 | ev_free (anfds); anfdmax = 0; |
1572 | ev_free (anfds); anfdmax = 0; |
1124 | |
1573 | |
1125 | /* have to use the microsoft-never-gets-it-right macro */ |
1574 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
1575 | array_free (rfeed, EMPTY); |
1126 | array_free (fdchange, EMPTY); |
1576 | array_free (fdchange, EMPTY); |
1127 | array_free (timer, EMPTY); |
1577 | array_free (timer, EMPTY); |
1128 | #if EV_PERIODIC_ENABLE |
1578 | #if EV_PERIODIC_ENABLE |
1129 | array_free (periodic, EMPTY); |
1579 | array_free (periodic, EMPTY); |
1130 | #endif |
1580 | #endif |
1131 | #if EV_FORK_ENABLE |
1581 | #if EV_FORK_ENABLE |
1132 | array_free (fork, EMPTY); |
1582 | array_free (fork, EMPTY); |
1133 | #endif |
1583 | #endif |
1134 | array_free (prepare, EMPTY); |
1584 | array_free (prepare, EMPTY); |
1135 | array_free (check, EMPTY); |
1585 | array_free (check, EMPTY); |
|
|
1586 | #if EV_ASYNC_ENABLE |
|
|
1587 | array_free (async, EMPTY); |
|
|
1588 | #endif |
1136 | |
1589 | |
1137 | backend = 0; |
1590 | backend = 0; |
1138 | } |
1591 | } |
1139 | |
1592 | |
|
|
1593 | #if EV_USE_INOTIFY |
1140 | void inline_size infy_fork (EV_P); |
1594 | inline_size void infy_fork (EV_P); |
|
|
1595 | #endif |
1141 | |
1596 | |
1142 | void inline_size |
1597 | inline_size void |
1143 | loop_fork (EV_P) |
1598 | loop_fork (EV_P) |
1144 | { |
1599 | { |
1145 | #if EV_USE_PORT |
1600 | #if EV_USE_PORT |
1146 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1601 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1147 | #endif |
1602 | #endif |
… | |
… | |
1153 | #endif |
1608 | #endif |
1154 | #if EV_USE_INOTIFY |
1609 | #if EV_USE_INOTIFY |
1155 | infy_fork (EV_A); |
1610 | infy_fork (EV_A); |
1156 | #endif |
1611 | #endif |
1157 | |
1612 | |
1158 | if (ev_is_active (&sigev)) |
1613 | if (ev_is_active (&pipe_w)) |
1159 | { |
1614 | { |
1160 | /* default loop */ |
1615 | /* this "locks" the handlers against writing to the pipe */ |
|
|
1616 | /* while we modify the fd vars */ |
|
|
1617 | gotsig = 1; |
|
|
1618 | #if EV_ASYNC_ENABLE |
|
|
1619 | gotasync = 1; |
|
|
1620 | #endif |
1161 | |
1621 | |
1162 | ev_ref (EV_A); |
1622 | ev_ref (EV_A); |
1163 | ev_io_stop (EV_A_ &sigev); |
1623 | ev_io_stop (EV_A_ &pipe_w); |
|
|
1624 | |
|
|
1625 | #if EV_USE_EVENTFD |
|
|
1626 | if (evfd >= 0) |
|
|
1627 | close (evfd); |
|
|
1628 | #endif |
|
|
1629 | |
|
|
1630 | if (evpipe [0] >= 0) |
|
|
1631 | { |
1164 | close (sigpipe [0]); |
1632 | close (evpipe [0]); |
1165 | close (sigpipe [1]); |
1633 | close (evpipe [1]); |
|
|
1634 | } |
1166 | |
1635 | |
1167 | while (pipe (sigpipe)) |
|
|
1168 | syserr ("(libev) error creating pipe"); |
|
|
1169 | |
|
|
1170 | siginit (EV_A); |
1636 | evpipe_init (EV_A); |
|
|
1637 | /* now iterate over everything, in case we missed something */ |
|
|
1638 | pipecb (EV_A_ &pipe_w, EV_READ); |
1171 | } |
1639 | } |
1172 | |
1640 | |
1173 | postfork = 0; |
1641 | postfork = 0; |
1174 | } |
1642 | } |
1175 | |
1643 | |
1176 | #if EV_MULTIPLICITY |
1644 | #if EV_MULTIPLICITY |
|
|
1645 | |
1177 | struct ev_loop * |
1646 | struct ev_loop * |
1178 | ev_loop_new (unsigned int flags) |
1647 | ev_loop_new (unsigned int flags) |
1179 | { |
1648 | { |
1180 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1649 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1181 | |
1650 | |
… | |
… | |
1197 | } |
1666 | } |
1198 | |
1667 | |
1199 | void |
1668 | void |
1200 | ev_loop_fork (EV_P) |
1669 | ev_loop_fork (EV_P) |
1201 | { |
1670 | { |
1202 | postfork = 1; |
1671 | postfork = 1; /* must be in line with ev_default_fork */ |
1203 | } |
1672 | } |
|
|
1673 | #endif /* multiplicity */ |
1204 | |
1674 | |
|
|
1675 | #if EV_VERIFY |
|
|
1676 | static void noinline |
|
|
1677 | verify_watcher (EV_P_ W w) |
|
|
1678 | { |
|
|
1679 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
|
|
1680 | |
|
|
1681 | if (w->pending) |
|
|
1682 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
|
|
1683 | } |
|
|
1684 | |
|
|
1685 | static void noinline |
|
|
1686 | verify_heap (EV_P_ ANHE *heap, int N) |
|
|
1687 | { |
|
|
1688 | int i; |
|
|
1689 | |
|
|
1690 | for (i = HEAP0; i < N + HEAP0; ++i) |
|
|
1691 | { |
|
|
1692 | assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
|
|
1693 | assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
|
|
1694 | assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
|
|
1695 | |
|
|
1696 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
|
|
1697 | } |
|
|
1698 | } |
|
|
1699 | |
|
|
1700 | static void noinline |
|
|
1701 | array_verify (EV_P_ W *ws, int cnt) |
|
|
1702 | { |
|
|
1703 | while (cnt--) |
|
|
1704 | { |
|
|
1705 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
|
|
1706 | verify_watcher (EV_A_ ws [cnt]); |
|
|
1707 | } |
|
|
1708 | } |
|
|
1709 | #endif |
|
|
1710 | |
|
|
1711 | #if EV_MINIMAL < 2 |
|
|
1712 | void |
|
|
1713 | ev_loop_verify (EV_P) |
|
|
1714 | { |
|
|
1715 | #if EV_VERIFY |
|
|
1716 | int i; |
|
|
1717 | WL w; |
|
|
1718 | |
|
|
1719 | assert (activecnt >= -1); |
|
|
1720 | |
|
|
1721 | assert (fdchangemax >= fdchangecnt); |
|
|
1722 | for (i = 0; i < fdchangecnt; ++i) |
|
|
1723 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
|
|
1724 | |
|
|
1725 | assert (anfdmax >= 0); |
|
|
1726 | for (i = 0; i < anfdmax; ++i) |
|
|
1727 | for (w = anfds [i].head; w; w = w->next) |
|
|
1728 | { |
|
|
1729 | verify_watcher (EV_A_ (W)w); |
|
|
1730 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
|
|
1731 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
|
|
1732 | } |
|
|
1733 | |
|
|
1734 | assert (timermax >= timercnt); |
|
|
1735 | verify_heap (EV_A_ timers, timercnt); |
|
|
1736 | |
|
|
1737 | #if EV_PERIODIC_ENABLE |
|
|
1738 | assert (periodicmax >= periodiccnt); |
|
|
1739 | verify_heap (EV_A_ periodics, periodiccnt); |
|
|
1740 | #endif |
|
|
1741 | |
|
|
1742 | for (i = NUMPRI; i--; ) |
|
|
1743 | { |
|
|
1744 | assert (pendingmax [i] >= pendingcnt [i]); |
|
|
1745 | #if EV_IDLE_ENABLE |
|
|
1746 | assert (idleall >= 0); |
|
|
1747 | assert (idlemax [i] >= idlecnt [i]); |
|
|
1748 | array_verify (EV_A_ (W *)idles [i], idlecnt [i]); |
|
|
1749 | #endif |
|
|
1750 | } |
|
|
1751 | |
|
|
1752 | #if EV_FORK_ENABLE |
|
|
1753 | assert (forkmax >= forkcnt); |
|
|
1754 | array_verify (EV_A_ (W *)forks, forkcnt); |
|
|
1755 | #endif |
|
|
1756 | |
|
|
1757 | #if EV_ASYNC_ENABLE |
|
|
1758 | assert (asyncmax >= asynccnt); |
|
|
1759 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
|
|
1760 | #endif |
|
|
1761 | |
|
|
1762 | assert (preparemax >= preparecnt); |
|
|
1763 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
1764 | |
|
|
1765 | assert (checkmax >= checkcnt); |
|
|
1766 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
1767 | |
|
|
1768 | # if 0 |
|
|
1769 | 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) |
|
|
1771 | # endif |
|
|
1772 | #endif |
|
|
1773 | } |
1205 | #endif |
1774 | #endif |
1206 | |
1775 | |
1207 | #if EV_MULTIPLICITY |
1776 | #if EV_MULTIPLICITY |
1208 | struct ev_loop * |
1777 | struct ev_loop * |
1209 | ev_default_loop_init (unsigned int flags) |
1778 | ev_default_loop_init (unsigned int flags) |
1210 | #else |
1779 | #else |
1211 | int |
1780 | int |
1212 | ev_default_loop (unsigned int flags) |
1781 | ev_default_loop (unsigned int flags) |
1213 | #endif |
1782 | #endif |
1214 | { |
1783 | { |
1215 | if (sigpipe [0] == sigpipe [1]) |
|
|
1216 | if (pipe (sigpipe)) |
|
|
1217 | return 0; |
|
|
1218 | |
|
|
1219 | if (!ev_default_loop_ptr) |
1784 | if (!ev_default_loop_ptr) |
1220 | { |
1785 | { |
1221 | #if EV_MULTIPLICITY |
1786 | #if EV_MULTIPLICITY |
1222 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1787 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1223 | #else |
1788 | #else |
… | |
… | |
1226 | |
1791 | |
1227 | loop_init (EV_A_ flags); |
1792 | loop_init (EV_A_ flags); |
1228 | |
1793 | |
1229 | if (ev_backend (EV_A)) |
1794 | if (ev_backend (EV_A)) |
1230 | { |
1795 | { |
1231 | siginit (EV_A); |
|
|
1232 | |
|
|
1233 | #ifndef _WIN32 |
1796 | #ifndef _WIN32 |
1234 | ev_signal_init (&childev, childcb, SIGCHLD); |
1797 | ev_signal_init (&childev, childcb, SIGCHLD); |
1235 | ev_set_priority (&childev, EV_MAXPRI); |
1798 | ev_set_priority (&childev, EV_MAXPRI); |
1236 | ev_signal_start (EV_A_ &childev); |
1799 | ev_signal_start (EV_A_ &childev); |
1237 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1800 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
… | |
… | |
1249 | { |
1812 | { |
1250 | #if EV_MULTIPLICITY |
1813 | #if EV_MULTIPLICITY |
1251 | struct ev_loop *loop = ev_default_loop_ptr; |
1814 | struct ev_loop *loop = ev_default_loop_ptr; |
1252 | #endif |
1815 | #endif |
1253 | |
1816 | |
|
|
1817 | ev_default_loop_ptr = 0; |
|
|
1818 | |
1254 | #ifndef _WIN32 |
1819 | #ifndef _WIN32 |
1255 | ev_ref (EV_A); /* child watcher */ |
1820 | ev_ref (EV_A); /* child watcher */ |
1256 | ev_signal_stop (EV_A_ &childev); |
1821 | ev_signal_stop (EV_A_ &childev); |
1257 | #endif |
1822 | #endif |
1258 | |
1823 | |
1259 | ev_ref (EV_A); /* signal watcher */ |
|
|
1260 | ev_io_stop (EV_A_ &sigev); |
|
|
1261 | |
|
|
1262 | close (sigpipe [0]); sigpipe [0] = 0; |
|
|
1263 | close (sigpipe [1]); sigpipe [1] = 0; |
|
|
1264 | |
|
|
1265 | loop_destroy (EV_A); |
1824 | loop_destroy (EV_A); |
1266 | } |
1825 | } |
1267 | |
1826 | |
1268 | void |
1827 | void |
1269 | ev_default_fork (void) |
1828 | ev_default_fork (void) |
1270 | { |
1829 | { |
1271 | #if EV_MULTIPLICITY |
1830 | #if EV_MULTIPLICITY |
1272 | struct ev_loop *loop = ev_default_loop_ptr; |
1831 | struct ev_loop *loop = ev_default_loop_ptr; |
1273 | #endif |
1832 | #endif |
1274 | |
1833 | |
1275 | if (backend) |
1834 | postfork = 1; /* must be in line with ev_loop_fork */ |
1276 | postfork = 1; |
|
|
1277 | } |
1835 | } |
1278 | |
1836 | |
1279 | /*****************************************************************************/ |
1837 | /*****************************************************************************/ |
1280 | |
1838 | |
1281 | void |
1839 | void |
1282 | ev_invoke (EV_P_ void *w, int revents) |
1840 | ev_invoke (EV_P_ void *w, int revents) |
1283 | { |
1841 | { |
1284 | EV_CB_INVOKE ((W)w, revents); |
1842 | EV_CB_INVOKE ((W)w, revents); |
1285 | } |
1843 | } |
1286 | |
1844 | |
1287 | void inline_speed |
1845 | unsigned int |
1288 | call_pending (EV_P) |
1846 | ev_pending_count (EV_P) |
|
|
1847 | { |
|
|
1848 | int pri; |
|
|
1849 | unsigned int count = 0; |
|
|
1850 | |
|
|
1851 | for (pri = NUMPRI; pri--; ) |
|
|
1852 | count += pendingcnt [pri]; |
|
|
1853 | |
|
|
1854 | return count; |
|
|
1855 | } |
|
|
1856 | |
|
|
1857 | void noinline |
|
|
1858 | ev_invoke_pending (EV_P) |
1289 | { |
1859 | { |
1290 | int pri; |
1860 | int pri; |
1291 | |
1861 | |
1292 | for (pri = NUMPRI; pri--; ) |
1862 | for (pri = NUMPRI; pri--; ) |
1293 | while (pendingcnt [pri]) |
1863 | while (pendingcnt [pri]) |
1294 | { |
1864 | { |
1295 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1865 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1296 | |
1866 | |
1297 | if (expect_true (p->w)) |
|
|
1298 | { |
|
|
1299 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
1867 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
|
|
1868 | /* ^ this is no longer true, as pending_w could be here */ |
1300 | |
1869 | |
1301 | p->w->pending = 0; |
1870 | p->w->pending = 0; |
1302 | EV_CB_INVOKE (p->w, p->events); |
1871 | EV_CB_INVOKE (p->w, p->events); |
1303 | } |
1872 | EV_FREQUENT_CHECK; |
1304 | } |
1873 | } |
1305 | } |
1874 | } |
1306 | |
1875 | |
1307 | void inline_size |
|
|
1308 | timers_reify (EV_P) |
|
|
1309 | { |
|
|
1310 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
|
|
1311 | { |
|
|
1312 | ev_timer *w = (ev_timer *)timers [0]; |
|
|
1313 | |
|
|
1314 | assert (("inactive timer on timer heap detected", ev_is_active (w))); |
|
|
1315 | |
|
|
1316 | /* first reschedule or stop timer */ |
|
|
1317 | if (w->repeat) |
|
|
1318 | { |
|
|
1319 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1320 | |
|
|
1321 | ((WT)w)->at += w->repeat; |
|
|
1322 | if (((WT)w)->at < mn_now) |
|
|
1323 | ((WT)w)->at = mn_now; |
|
|
1324 | |
|
|
1325 | downheap (timers, timercnt, 0); |
|
|
1326 | } |
|
|
1327 | else |
|
|
1328 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1329 | |
|
|
1330 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
|
|
1331 | } |
|
|
1332 | } |
|
|
1333 | |
|
|
1334 | #if EV_PERIODIC_ENABLE |
|
|
1335 | void inline_size |
|
|
1336 | periodics_reify (EV_P) |
|
|
1337 | { |
|
|
1338 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
|
|
1339 | { |
|
|
1340 | ev_periodic *w = (ev_periodic *)periodics [0]; |
|
|
1341 | |
|
|
1342 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
1343 | |
|
|
1344 | /* first reschedule or stop timer */ |
|
|
1345 | if (w->reschedule_cb) |
|
|
1346 | { |
|
|
1347 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); |
|
|
1348 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
|
|
1349 | downheap (periodics, periodiccnt, 0); |
|
|
1350 | } |
|
|
1351 | else if (w->interval) |
|
|
1352 | { |
|
|
1353 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1354 | if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval; |
|
|
1355 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
|
|
1356 | downheap (periodics, periodiccnt, 0); |
|
|
1357 | } |
|
|
1358 | else |
|
|
1359 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1360 | |
|
|
1361 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
|
|
1362 | } |
|
|
1363 | } |
|
|
1364 | |
|
|
1365 | static void noinline |
|
|
1366 | periodics_reschedule (EV_P) |
|
|
1367 | { |
|
|
1368 | int i; |
|
|
1369 | |
|
|
1370 | /* adjust periodics after time jump */ |
|
|
1371 | for (i = 0; i < periodiccnt; ++i) |
|
|
1372 | { |
|
|
1373 | ev_periodic *w = (ev_periodic *)periodics [i]; |
|
|
1374 | |
|
|
1375 | if (w->reschedule_cb) |
|
|
1376 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
|
|
1377 | else if (w->interval) |
|
|
1378 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1379 | } |
|
|
1380 | |
|
|
1381 | /* now rebuild the heap */ |
|
|
1382 | for (i = periodiccnt >> 1; i--; ) |
|
|
1383 | downheap (periodics, periodiccnt, i); |
|
|
1384 | } |
|
|
1385 | #endif |
|
|
1386 | |
|
|
1387 | #if EV_IDLE_ENABLE |
1876 | #if EV_IDLE_ENABLE |
1388 | void inline_size |
1877 | /* make idle watchers pending. this handles the "call-idle */ |
|
|
1878 | /* only when higher priorities are idle" logic */ |
|
|
1879 | inline_size void |
1389 | idle_reify (EV_P) |
1880 | idle_reify (EV_P) |
1390 | { |
1881 | { |
1391 | if (expect_false (idleall)) |
1882 | if (expect_false (idleall)) |
1392 | { |
1883 | { |
1393 | int pri; |
1884 | int pri; |
… | |
… | |
1405 | } |
1896 | } |
1406 | } |
1897 | } |
1407 | } |
1898 | } |
1408 | #endif |
1899 | #endif |
1409 | |
1900 | |
1410 | void inline_speed |
1901 | /* make timers pending */ |
|
|
1902 | inline_size void |
|
|
1903 | timers_reify (EV_P) |
|
|
1904 | { |
|
|
1905 | EV_FREQUENT_CHECK; |
|
|
1906 | |
|
|
1907 | if (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
|
|
1908 | { |
|
|
1909 | do |
|
|
1910 | { |
|
|
1911 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
|
|
1912 | |
|
|
1913 | /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1914 | |
|
|
1915 | /* first reschedule or stop timer */ |
|
|
1916 | if (w->repeat) |
|
|
1917 | { |
|
|
1918 | ev_at (w) += w->repeat; |
|
|
1919 | if (ev_at (w) < mn_now) |
|
|
1920 | ev_at (w) = mn_now; |
|
|
1921 | |
|
|
1922 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1923 | |
|
|
1924 | ANHE_at_cache (timers [HEAP0]); |
|
|
1925 | downheap (timers, timercnt, HEAP0); |
|
|
1926 | } |
|
|
1927 | else |
|
|
1928 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1929 | |
|
|
1930 | EV_FREQUENT_CHECK; |
|
|
1931 | feed_reverse (EV_A_ (W)w); |
|
|
1932 | } |
|
|
1933 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
|
|
1934 | |
|
|
1935 | feed_reverse_done (EV_A_ EV_TIMEOUT); |
|
|
1936 | } |
|
|
1937 | } |
|
|
1938 | |
|
|
1939 | #if EV_PERIODIC_ENABLE |
|
|
1940 | /* make periodics pending */ |
|
|
1941 | inline_size void |
|
|
1942 | periodics_reify (EV_P) |
|
|
1943 | { |
|
|
1944 | EV_FREQUENT_CHECK; |
|
|
1945 | |
|
|
1946 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
|
|
1947 | { |
|
|
1948 | int feed_count = 0; |
|
|
1949 | |
|
|
1950 | do |
|
|
1951 | { |
|
|
1952 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
|
|
1953 | |
|
|
1954 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
1955 | |
|
|
1956 | /* first reschedule or stop timer */ |
|
|
1957 | if (w->reschedule_cb) |
|
|
1958 | { |
|
|
1959 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
1960 | |
|
|
1961 | assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
|
|
1962 | |
|
|
1963 | ANHE_at_cache (periodics [HEAP0]); |
|
|
1964 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1965 | } |
|
|
1966 | else if (w->interval) |
|
|
1967 | { |
|
|
1968 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1969 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
1970 | /* this might happen because of floating point inexactness */ |
|
|
1971 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
1972 | { |
|
|
1973 | ev_at (w) += w->interval; |
|
|
1974 | |
|
|
1975 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
1976 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
1977 | /* has effectively asked to get triggered more often than possible */ |
|
|
1978 | if (ev_at (w) < ev_rt_now) |
|
|
1979 | ev_at (w) = ev_rt_now; |
|
|
1980 | } |
|
|
1981 | |
|
|
1982 | ANHE_at_cache (periodics [HEAP0]); |
|
|
1983 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1984 | } |
|
|
1985 | else |
|
|
1986 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1987 | |
|
|
1988 | EV_FREQUENT_CHECK; |
|
|
1989 | feed_reverse (EV_A_ (W)w); |
|
|
1990 | } |
|
|
1991 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now); |
|
|
1992 | |
|
|
1993 | feed_reverse_done (EV_A_ EV_PERIODIC); |
|
|
1994 | } |
|
|
1995 | } |
|
|
1996 | |
|
|
1997 | /* simply recalculate all periodics */ |
|
|
1998 | /* TODO: maybe ensure that at leats one event happens when jumping forward? */ |
|
|
1999 | static void noinline |
|
|
2000 | periodics_reschedule (EV_P) |
|
|
2001 | { |
|
|
2002 | int i; |
|
|
2003 | |
|
|
2004 | /* adjust periodics after time jump */ |
|
|
2005 | for (i = HEAP0; i < periodiccnt + HEAP0; ++i) |
|
|
2006 | { |
|
|
2007 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
|
|
2008 | |
|
|
2009 | if (w->reschedule_cb) |
|
|
2010 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
2011 | else if (w->interval) |
|
|
2012 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2013 | |
|
|
2014 | ANHE_at_cache (periodics [i]); |
|
|
2015 | } |
|
|
2016 | |
|
|
2017 | reheap (periodics, periodiccnt); |
|
|
2018 | } |
|
|
2019 | #endif |
|
|
2020 | |
|
|
2021 | /* adjust all timers by a given offset */ |
|
|
2022 | static void noinline |
|
|
2023 | timers_reschedule (EV_P_ ev_tstamp adjust) |
|
|
2024 | { |
|
|
2025 | int i; |
|
|
2026 | |
|
|
2027 | for (i = 0; i < timercnt; ++i) |
|
|
2028 | { |
|
|
2029 | ANHE *he = timers + i + HEAP0; |
|
|
2030 | ANHE_w (*he)->at += adjust; |
|
|
2031 | ANHE_at_cache (*he); |
|
|
2032 | } |
|
|
2033 | } |
|
|
2034 | |
|
|
2035 | /* fetch new monotonic and realtime times from the kernel */ |
|
|
2036 | /* also detetc if there was a timejump, and act accordingly */ |
|
|
2037 | inline_speed void |
1411 | time_update (EV_P_ ev_tstamp max_block) |
2038 | time_update (EV_P_ ev_tstamp max_block) |
1412 | { |
2039 | { |
1413 | int i; |
|
|
1414 | |
|
|
1415 | #if EV_USE_MONOTONIC |
2040 | #if EV_USE_MONOTONIC |
1416 | if (expect_true (have_monotonic)) |
2041 | if (expect_true (have_monotonic)) |
1417 | { |
2042 | { |
|
|
2043 | int i; |
1418 | ev_tstamp odiff = rtmn_diff; |
2044 | ev_tstamp odiff = rtmn_diff; |
1419 | |
2045 | |
1420 | mn_now = get_clock (); |
2046 | mn_now = get_clock (); |
1421 | |
2047 | |
1422 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
2048 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
… | |
… | |
1440 | */ |
2066 | */ |
1441 | for (i = 4; --i; ) |
2067 | for (i = 4; --i; ) |
1442 | { |
2068 | { |
1443 | rtmn_diff = ev_rt_now - mn_now; |
2069 | rtmn_diff = ev_rt_now - mn_now; |
1444 | |
2070 | |
1445 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
2071 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
1446 | return; /* all is well */ |
2072 | return; /* all is well */ |
1447 | |
2073 | |
1448 | ev_rt_now = ev_time (); |
2074 | ev_rt_now = ev_time (); |
1449 | mn_now = get_clock (); |
2075 | mn_now = get_clock (); |
1450 | now_floor = mn_now; |
2076 | now_floor = mn_now; |
1451 | } |
2077 | } |
1452 | |
2078 | |
|
|
2079 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
2080 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1453 | # if EV_PERIODIC_ENABLE |
2081 | # if EV_PERIODIC_ENABLE |
1454 | periodics_reschedule (EV_A); |
2082 | periodics_reschedule (EV_A); |
1455 | # endif |
2083 | # endif |
1456 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1457 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1458 | } |
2084 | } |
1459 | else |
2085 | else |
1460 | #endif |
2086 | #endif |
1461 | { |
2087 | { |
1462 | ev_rt_now = ev_time (); |
2088 | ev_rt_now = ev_time (); |
1463 | |
2089 | |
1464 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
2090 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
1465 | { |
2091 | { |
|
|
2092 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
2093 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
1466 | #if EV_PERIODIC_ENABLE |
2094 | #if EV_PERIODIC_ENABLE |
1467 | periodics_reschedule (EV_A); |
2095 | periodics_reschedule (EV_A); |
1468 | #endif |
2096 | #endif |
1469 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1470 | for (i = 0; i < timercnt; ++i) |
|
|
1471 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
|
|
1472 | } |
2097 | } |
1473 | |
2098 | |
1474 | mn_now = ev_rt_now; |
2099 | mn_now = ev_rt_now; |
1475 | } |
2100 | } |
1476 | } |
2101 | } |
1477 | |
2102 | |
1478 | void |
2103 | void |
1479 | ev_ref (EV_P) |
|
|
1480 | { |
|
|
1481 | ++activecnt; |
|
|
1482 | } |
|
|
1483 | |
|
|
1484 | void |
|
|
1485 | ev_unref (EV_P) |
|
|
1486 | { |
|
|
1487 | --activecnt; |
|
|
1488 | } |
|
|
1489 | |
|
|
1490 | static int loop_done; |
|
|
1491 | |
|
|
1492 | void |
|
|
1493 | ev_loop (EV_P_ int flags) |
2104 | ev_loop (EV_P_ int flags) |
1494 | { |
2105 | { |
1495 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) |
2106 | #if EV_MINIMAL < 2 |
1496 | ? EVUNLOOP_ONE |
2107 | ++loop_depth; |
1497 | : EVUNLOOP_CANCEL; |
2108 | #endif |
1498 | |
2109 | |
|
|
2110 | assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); |
|
|
2111 | |
|
|
2112 | loop_done = EVUNLOOP_CANCEL; |
|
|
2113 | |
1499 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
2114 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
1500 | |
2115 | |
1501 | do |
2116 | do |
1502 | { |
2117 | { |
|
|
2118 | #if EV_VERIFY >= 2 |
|
|
2119 | ev_loop_verify (EV_A); |
|
|
2120 | #endif |
|
|
2121 | |
1503 | #ifndef _WIN32 |
2122 | #ifndef _WIN32 |
1504 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2123 | if (expect_false (curpid)) /* penalise the forking check even more */ |
1505 | if (expect_false (getpid () != curpid)) |
2124 | if (expect_false (getpid () != curpid)) |
1506 | { |
2125 | { |
1507 | curpid = getpid (); |
2126 | curpid = getpid (); |
… | |
… | |
1513 | /* we might have forked, so queue fork handlers */ |
2132 | /* we might have forked, so queue fork handlers */ |
1514 | if (expect_false (postfork)) |
2133 | if (expect_false (postfork)) |
1515 | if (forkcnt) |
2134 | if (forkcnt) |
1516 | { |
2135 | { |
1517 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2136 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
1518 | call_pending (EV_A); |
2137 | EV_INVOKE_PENDING; |
1519 | } |
2138 | } |
1520 | #endif |
2139 | #endif |
1521 | |
2140 | |
1522 | /* queue prepare watchers (and execute them) */ |
2141 | /* queue prepare watchers (and execute them) */ |
1523 | if (expect_false (preparecnt)) |
2142 | if (expect_false (preparecnt)) |
1524 | { |
2143 | { |
1525 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2144 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1526 | call_pending (EV_A); |
2145 | EV_INVOKE_PENDING; |
1527 | } |
2146 | } |
1528 | |
2147 | |
1529 | if (expect_false (!activecnt)) |
2148 | if (expect_false (loop_done)) |
1530 | break; |
2149 | break; |
1531 | |
2150 | |
1532 | /* we might have forked, so reify kernel state if necessary */ |
2151 | /* we might have forked, so reify kernel state if necessary */ |
1533 | if (expect_false (postfork)) |
2152 | if (expect_false (postfork)) |
1534 | loop_fork (EV_A); |
2153 | loop_fork (EV_A); |
… | |
… | |
1541 | ev_tstamp waittime = 0.; |
2160 | ev_tstamp waittime = 0.; |
1542 | ev_tstamp sleeptime = 0.; |
2161 | ev_tstamp sleeptime = 0.; |
1543 | |
2162 | |
1544 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2163 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
1545 | { |
2164 | { |
|
|
2165 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2166 | ev_tstamp prev_mn_now = mn_now; |
|
|
2167 | |
1546 | /* update time to cancel out callback processing overhead */ |
2168 | /* update time to cancel out callback processing overhead */ |
1547 | time_update (EV_A_ 1e100); |
2169 | time_update (EV_A_ 1e100); |
1548 | |
2170 | |
1549 | waittime = MAX_BLOCKTIME; |
2171 | waittime = MAX_BLOCKTIME; |
1550 | |
2172 | |
1551 | if (timercnt) |
2173 | if (timercnt) |
1552 | { |
2174 | { |
1553 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
2175 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
1554 | if (waittime > to) waittime = to; |
2176 | if (waittime > to) waittime = to; |
1555 | } |
2177 | } |
1556 | |
2178 | |
1557 | #if EV_PERIODIC_ENABLE |
2179 | #if EV_PERIODIC_ENABLE |
1558 | if (periodiccnt) |
2180 | if (periodiccnt) |
1559 | { |
2181 | { |
1560 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
2182 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
1561 | if (waittime > to) waittime = to; |
2183 | if (waittime > to) waittime = to; |
1562 | } |
2184 | } |
1563 | #endif |
2185 | #endif |
1564 | |
2186 | |
|
|
2187 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
1565 | if (expect_false (waittime < timeout_blocktime)) |
2188 | if (expect_false (waittime < timeout_blocktime)) |
1566 | waittime = timeout_blocktime; |
2189 | waittime = timeout_blocktime; |
1567 | |
2190 | |
1568 | sleeptime = waittime - backend_fudge; |
2191 | /* extra check because io_blocktime is commonly 0 */ |
1569 | |
|
|
1570 | if (expect_true (sleeptime > io_blocktime)) |
2192 | if (expect_false (io_blocktime)) |
1571 | sleeptime = io_blocktime; |
|
|
1572 | |
|
|
1573 | if (sleeptime) |
|
|
1574 | { |
2193 | { |
|
|
2194 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
|
|
2195 | |
|
|
2196 | if (sleeptime > waittime - backend_fudge) |
|
|
2197 | sleeptime = waittime - backend_fudge; |
|
|
2198 | |
|
|
2199 | if (expect_true (sleeptime > 0.)) |
|
|
2200 | { |
1575 | ev_sleep (sleeptime); |
2201 | ev_sleep (sleeptime); |
1576 | waittime -= sleeptime; |
2202 | waittime -= sleeptime; |
|
|
2203 | } |
1577 | } |
2204 | } |
1578 | } |
2205 | } |
1579 | |
2206 | |
|
|
2207 | #if EV_MINIMAL < 2 |
1580 | ++loop_count; |
2208 | ++loop_count; |
|
|
2209 | #endif |
|
|
2210 | assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ |
1581 | backend_poll (EV_A_ waittime); |
2211 | backend_poll (EV_A_ waittime); |
|
|
2212 | assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ |
1582 | |
2213 | |
1583 | /* update ev_rt_now, do magic */ |
2214 | /* update ev_rt_now, do magic */ |
1584 | time_update (EV_A_ waittime + sleeptime); |
2215 | time_update (EV_A_ waittime + sleeptime); |
1585 | } |
2216 | } |
1586 | |
2217 | |
… | |
… | |
1597 | |
2228 | |
1598 | /* queue check watchers, to be executed first */ |
2229 | /* queue check watchers, to be executed first */ |
1599 | if (expect_false (checkcnt)) |
2230 | if (expect_false (checkcnt)) |
1600 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2231 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1601 | |
2232 | |
1602 | call_pending (EV_A); |
2233 | EV_INVOKE_PENDING; |
1603 | |
|
|
1604 | } |
2234 | } |
1605 | while (expect_true (activecnt && !loop_done)); |
2235 | while (expect_true ( |
|
|
2236 | activecnt |
|
|
2237 | && !loop_done |
|
|
2238 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
|
|
2239 | )); |
1606 | |
2240 | |
1607 | if (loop_done == EVUNLOOP_ONE) |
2241 | if (loop_done == EVUNLOOP_ONE) |
1608 | loop_done = EVUNLOOP_CANCEL; |
2242 | loop_done = EVUNLOOP_CANCEL; |
|
|
2243 | |
|
|
2244 | #if EV_MINIMAL < 2 |
|
|
2245 | --loop_depth; |
|
|
2246 | #endif |
1609 | } |
2247 | } |
1610 | |
2248 | |
1611 | void |
2249 | void |
1612 | ev_unloop (EV_P_ int how) |
2250 | ev_unloop (EV_P_ int how) |
1613 | { |
2251 | { |
1614 | loop_done = how; |
2252 | loop_done = how; |
1615 | } |
2253 | } |
1616 | |
2254 | |
|
|
2255 | void |
|
|
2256 | ev_ref (EV_P) |
|
|
2257 | { |
|
|
2258 | ++activecnt; |
|
|
2259 | } |
|
|
2260 | |
|
|
2261 | void |
|
|
2262 | ev_unref (EV_P) |
|
|
2263 | { |
|
|
2264 | --activecnt; |
|
|
2265 | } |
|
|
2266 | |
|
|
2267 | void |
|
|
2268 | ev_now_update (EV_P) |
|
|
2269 | { |
|
|
2270 | time_update (EV_A_ 1e100); |
|
|
2271 | } |
|
|
2272 | |
|
|
2273 | void |
|
|
2274 | ev_suspend (EV_P) |
|
|
2275 | { |
|
|
2276 | ev_now_update (EV_A); |
|
|
2277 | } |
|
|
2278 | |
|
|
2279 | void |
|
|
2280 | ev_resume (EV_P) |
|
|
2281 | { |
|
|
2282 | ev_tstamp mn_prev = mn_now; |
|
|
2283 | |
|
|
2284 | ev_now_update (EV_A); |
|
|
2285 | timers_reschedule (EV_A_ mn_now - mn_prev); |
|
|
2286 | #if EV_PERIODIC_ENABLE |
|
|
2287 | /* TODO: really do this? */ |
|
|
2288 | periodics_reschedule (EV_A); |
|
|
2289 | #endif |
|
|
2290 | } |
|
|
2291 | |
1617 | /*****************************************************************************/ |
2292 | /*****************************************************************************/ |
|
|
2293 | /* singly-linked list management, used when the expected list length is short */ |
1618 | |
2294 | |
1619 | void inline_size |
2295 | inline_size void |
1620 | wlist_add (WL *head, WL elem) |
2296 | wlist_add (WL *head, WL elem) |
1621 | { |
2297 | { |
1622 | elem->next = *head; |
2298 | elem->next = *head; |
1623 | *head = elem; |
2299 | *head = elem; |
1624 | } |
2300 | } |
1625 | |
2301 | |
1626 | void inline_size |
2302 | inline_size void |
1627 | wlist_del (WL *head, WL elem) |
2303 | wlist_del (WL *head, WL elem) |
1628 | { |
2304 | { |
1629 | while (*head) |
2305 | while (*head) |
1630 | { |
2306 | { |
1631 | if (*head == elem) |
2307 | if (*head == elem) |
… | |
… | |
1636 | |
2312 | |
1637 | head = &(*head)->next; |
2313 | head = &(*head)->next; |
1638 | } |
2314 | } |
1639 | } |
2315 | } |
1640 | |
2316 | |
1641 | void inline_speed |
2317 | /* internal, faster, version of ev_clear_pending */ |
|
|
2318 | inline_speed void |
1642 | clear_pending (EV_P_ W w) |
2319 | clear_pending (EV_P_ W w) |
1643 | { |
2320 | { |
1644 | if (w->pending) |
2321 | if (w->pending) |
1645 | { |
2322 | { |
1646 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
2323 | pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w; |
1647 | w->pending = 0; |
2324 | w->pending = 0; |
1648 | } |
2325 | } |
1649 | } |
2326 | } |
1650 | |
2327 | |
1651 | int |
2328 | int |
… | |
… | |
1655 | int pending = w_->pending; |
2332 | int pending = w_->pending; |
1656 | |
2333 | |
1657 | if (expect_true (pending)) |
2334 | if (expect_true (pending)) |
1658 | { |
2335 | { |
1659 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
2336 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
2337 | p->w = (W)&pending_w; |
1660 | w_->pending = 0; |
2338 | w_->pending = 0; |
1661 | p->w = 0; |
|
|
1662 | return p->events; |
2339 | return p->events; |
1663 | } |
2340 | } |
1664 | else |
2341 | else |
1665 | return 0; |
2342 | return 0; |
1666 | } |
2343 | } |
1667 | |
2344 | |
1668 | void inline_size |
2345 | inline_size void |
1669 | pri_adjust (EV_P_ W w) |
2346 | pri_adjust (EV_P_ W w) |
1670 | { |
2347 | { |
1671 | int pri = w->priority; |
2348 | int pri = ev_priority (w); |
1672 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2349 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
1673 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2350 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
1674 | w->priority = pri; |
2351 | ev_set_priority (w, pri); |
1675 | } |
2352 | } |
1676 | |
2353 | |
1677 | void inline_speed |
2354 | inline_speed void |
1678 | ev_start (EV_P_ W w, int active) |
2355 | ev_start (EV_P_ W w, int active) |
1679 | { |
2356 | { |
1680 | pri_adjust (EV_A_ w); |
2357 | pri_adjust (EV_A_ w); |
1681 | w->active = active; |
2358 | w->active = active; |
1682 | ev_ref (EV_A); |
2359 | ev_ref (EV_A); |
1683 | } |
2360 | } |
1684 | |
2361 | |
1685 | void inline_size |
2362 | inline_size void |
1686 | ev_stop (EV_P_ W w) |
2363 | ev_stop (EV_P_ W w) |
1687 | { |
2364 | { |
1688 | ev_unref (EV_A); |
2365 | ev_unref (EV_A); |
1689 | w->active = 0; |
2366 | w->active = 0; |
1690 | } |
2367 | } |
… | |
… | |
1697 | int fd = w->fd; |
2374 | int fd = w->fd; |
1698 | |
2375 | |
1699 | if (expect_false (ev_is_active (w))) |
2376 | if (expect_false (ev_is_active (w))) |
1700 | return; |
2377 | return; |
1701 | |
2378 | |
1702 | assert (("ev_io_start called with negative fd", fd >= 0)); |
2379 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
|
|
2380 | assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
|
|
2381 | |
|
|
2382 | EV_FREQUENT_CHECK; |
1703 | |
2383 | |
1704 | ev_start (EV_A_ (W)w, 1); |
2384 | ev_start (EV_A_ (W)w, 1); |
1705 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
2385 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
1706 | wlist_add (&anfds[fd].head, (WL)w); |
2386 | wlist_add (&anfds[fd].head, (WL)w); |
1707 | |
2387 | |
1708 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
2388 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
1709 | w->events &= ~EV_IOFDSET; |
2389 | w->events &= ~EV__IOFDSET; |
|
|
2390 | |
|
|
2391 | EV_FREQUENT_CHECK; |
1710 | } |
2392 | } |
1711 | |
2393 | |
1712 | void noinline |
2394 | void noinline |
1713 | ev_io_stop (EV_P_ ev_io *w) |
2395 | ev_io_stop (EV_P_ ev_io *w) |
1714 | { |
2396 | { |
1715 | clear_pending (EV_A_ (W)w); |
2397 | clear_pending (EV_A_ (W)w); |
1716 | if (expect_false (!ev_is_active (w))) |
2398 | if (expect_false (!ev_is_active (w))) |
1717 | return; |
2399 | return; |
1718 | |
2400 | |
1719 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2401 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
|
|
2402 | |
|
|
2403 | EV_FREQUENT_CHECK; |
1720 | |
2404 | |
1721 | wlist_del (&anfds[w->fd].head, (WL)w); |
2405 | wlist_del (&anfds[w->fd].head, (WL)w); |
1722 | ev_stop (EV_A_ (W)w); |
2406 | ev_stop (EV_A_ (W)w); |
1723 | |
2407 | |
1724 | fd_change (EV_A_ w->fd, 1); |
2408 | fd_change (EV_A_ w->fd, 1); |
|
|
2409 | |
|
|
2410 | EV_FREQUENT_CHECK; |
1725 | } |
2411 | } |
1726 | |
2412 | |
1727 | void noinline |
2413 | void noinline |
1728 | ev_timer_start (EV_P_ ev_timer *w) |
2414 | ev_timer_start (EV_P_ ev_timer *w) |
1729 | { |
2415 | { |
1730 | if (expect_false (ev_is_active (w))) |
2416 | if (expect_false (ev_is_active (w))) |
1731 | return; |
2417 | return; |
1732 | |
2418 | |
1733 | ((WT)w)->at += mn_now; |
2419 | ev_at (w) += mn_now; |
1734 | |
2420 | |
1735 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2421 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1736 | |
2422 | |
|
|
2423 | EV_FREQUENT_CHECK; |
|
|
2424 | |
|
|
2425 | ++timercnt; |
1737 | ev_start (EV_A_ (W)w, ++timercnt); |
2426 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
1738 | array_needsize (WT, timers, timermax, timercnt, EMPTY2); |
2427 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
1739 | timers [timercnt - 1] = (WT)w; |
2428 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
1740 | upheap (timers, timercnt - 1); |
2429 | ANHE_at_cache (timers [ev_active (w)]); |
|
|
2430 | upheap (timers, ev_active (w)); |
1741 | |
2431 | |
|
|
2432 | EV_FREQUENT_CHECK; |
|
|
2433 | |
1742 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
2434 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
1743 | } |
2435 | } |
1744 | |
2436 | |
1745 | void noinline |
2437 | void noinline |
1746 | ev_timer_stop (EV_P_ ev_timer *w) |
2438 | ev_timer_stop (EV_P_ ev_timer *w) |
1747 | { |
2439 | { |
1748 | clear_pending (EV_A_ (W)w); |
2440 | clear_pending (EV_A_ (W)w); |
1749 | if (expect_false (!ev_is_active (w))) |
2441 | if (expect_false (!ev_is_active (w))) |
1750 | return; |
2442 | return; |
1751 | |
2443 | |
1752 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w)); |
2444 | EV_FREQUENT_CHECK; |
1753 | |
2445 | |
1754 | { |
2446 | { |
1755 | int active = ((W)w)->active; |
2447 | int active = ev_active (w); |
1756 | |
2448 | |
|
|
2449 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
|
|
2450 | |
|
|
2451 | --timercnt; |
|
|
2452 | |
1757 | if (expect_true (--active < --timercnt)) |
2453 | if (expect_true (active < timercnt + HEAP0)) |
1758 | { |
2454 | { |
1759 | timers [active] = timers [timercnt]; |
2455 | timers [active] = timers [timercnt + HEAP0]; |
1760 | adjustheap (timers, timercnt, active); |
2456 | adjustheap (timers, timercnt, active); |
1761 | } |
2457 | } |
1762 | } |
2458 | } |
1763 | |
2459 | |
1764 | ((WT)w)->at -= mn_now; |
2460 | EV_FREQUENT_CHECK; |
|
|
2461 | |
|
|
2462 | ev_at (w) -= mn_now; |
1765 | |
2463 | |
1766 | ev_stop (EV_A_ (W)w); |
2464 | ev_stop (EV_A_ (W)w); |
1767 | } |
2465 | } |
1768 | |
2466 | |
1769 | void noinline |
2467 | void noinline |
1770 | ev_timer_again (EV_P_ ev_timer *w) |
2468 | ev_timer_again (EV_P_ ev_timer *w) |
1771 | { |
2469 | { |
|
|
2470 | EV_FREQUENT_CHECK; |
|
|
2471 | |
1772 | if (ev_is_active (w)) |
2472 | if (ev_is_active (w)) |
1773 | { |
2473 | { |
1774 | if (w->repeat) |
2474 | if (w->repeat) |
1775 | { |
2475 | { |
1776 | ((WT)w)->at = mn_now + w->repeat; |
2476 | ev_at (w) = mn_now + w->repeat; |
|
|
2477 | ANHE_at_cache (timers [ev_active (w)]); |
1777 | adjustheap (timers, timercnt, ((W)w)->active - 1); |
2478 | adjustheap (timers, timercnt, ev_active (w)); |
1778 | } |
2479 | } |
1779 | else |
2480 | else |
1780 | ev_timer_stop (EV_A_ w); |
2481 | ev_timer_stop (EV_A_ w); |
1781 | } |
2482 | } |
1782 | else if (w->repeat) |
2483 | else if (w->repeat) |
1783 | { |
2484 | { |
1784 | w->at = w->repeat; |
2485 | ev_at (w) = w->repeat; |
1785 | ev_timer_start (EV_A_ w); |
2486 | ev_timer_start (EV_A_ w); |
1786 | } |
2487 | } |
|
|
2488 | |
|
|
2489 | EV_FREQUENT_CHECK; |
|
|
2490 | } |
|
|
2491 | |
|
|
2492 | ev_tstamp |
|
|
2493 | ev_timer_remaining (EV_P_ ev_timer *w) |
|
|
2494 | { |
|
|
2495 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
1787 | } |
2496 | } |
1788 | |
2497 | |
1789 | #if EV_PERIODIC_ENABLE |
2498 | #if EV_PERIODIC_ENABLE |
1790 | void noinline |
2499 | void noinline |
1791 | ev_periodic_start (EV_P_ ev_periodic *w) |
2500 | ev_periodic_start (EV_P_ ev_periodic *w) |
1792 | { |
2501 | { |
1793 | if (expect_false (ev_is_active (w))) |
2502 | if (expect_false (ev_is_active (w))) |
1794 | return; |
2503 | return; |
1795 | |
2504 | |
1796 | if (w->reschedule_cb) |
2505 | if (w->reschedule_cb) |
1797 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
2506 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1798 | else if (w->interval) |
2507 | else if (w->interval) |
1799 | { |
2508 | { |
1800 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2509 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1801 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2510 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1802 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2511 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1803 | } |
2512 | } |
1804 | else |
2513 | else |
1805 | ((WT)w)->at = w->offset; |
2514 | ev_at (w) = w->offset; |
1806 | |
2515 | |
|
|
2516 | EV_FREQUENT_CHECK; |
|
|
2517 | |
|
|
2518 | ++periodiccnt; |
1807 | ev_start (EV_A_ (W)w, ++periodiccnt); |
2519 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
1808 | array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2); |
2520 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
1809 | periodics [periodiccnt - 1] = (WT)w; |
2521 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
1810 | upheap (periodics, periodiccnt - 1); |
2522 | ANHE_at_cache (periodics [ev_active (w)]); |
|
|
2523 | upheap (periodics, ev_active (w)); |
1811 | |
2524 | |
|
|
2525 | EV_FREQUENT_CHECK; |
|
|
2526 | |
1812 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
2527 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
1813 | } |
2528 | } |
1814 | |
2529 | |
1815 | void noinline |
2530 | void noinline |
1816 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2531 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1817 | { |
2532 | { |
1818 | clear_pending (EV_A_ (W)w); |
2533 | clear_pending (EV_A_ (W)w); |
1819 | if (expect_false (!ev_is_active (w))) |
2534 | if (expect_false (!ev_is_active (w))) |
1820 | return; |
2535 | return; |
1821 | |
2536 | |
1822 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w)); |
2537 | EV_FREQUENT_CHECK; |
1823 | |
2538 | |
1824 | { |
2539 | { |
1825 | int active = ((W)w)->active; |
2540 | int active = ev_active (w); |
1826 | |
2541 | |
|
|
2542 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
|
|
2543 | |
|
|
2544 | --periodiccnt; |
|
|
2545 | |
1827 | if (expect_true (--active < --periodiccnt)) |
2546 | if (expect_true (active < periodiccnt + HEAP0)) |
1828 | { |
2547 | { |
1829 | periodics [active] = periodics [periodiccnt]; |
2548 | periodics [active] = periodics [periodiccnt + HEAP0]; |
1830 | adjustheap (periodics, periodiccnt, active); |
2549 | adjustheap (periodics, periodiccnt, active); |
1831 | } |
2550 | } |
1832 | } |
2551 | } |
1833 | |
2552 | |
|
|
2553 | EV_FREQUENT_CHECK; |
|
|
2554 | |
1834 | ev_stop (EV_A_ (W)w); |
2555 | ev_stop (EV_A_ (W)w); |
1835 | } |
2556 | } |
1836 | |
2557 | |
1837 | void noinline |
2558 | void noinline |
1838 | ev_periodic_again (EV_P_ ev_periodic *w) |
2559 | ev_periodic_again (EV_P_ ev_periodic *w) |
… | |
… | |
1849 | |
2570 | |
1850 | void noinline |
2571 | void noinline |
1851 | ev_signal_start (EV_P_ ev_signal *w) |
2572 | ev_signal_start (EV_P_ ev_signal *w) |
1852 | { |
2573 | { |
1853 | #if EV_MULTIPLICITY |
2574 | #if EV_MULTIPLICITY |
1854 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2575 | assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1855 | #endif |
2576 | #endif |
1856 | if (expect_false (ev_is_active (w))) |
2577 | if (expect_false (ev_is_active (w))) |
1857 | return; |
2578 | return; |
1858 | |
2579 | |
1859 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2580 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); |
|
|
2581 | |
|
|
2582 | evpipe_init (EV_A); |
|
|
2583 | |
|
|
2584 | EV_FREQUENT_CHECK; |
1860 | |
2585 | |
1861 | { |
2586 | { |
1862 | #ifndef _WIN32 |
2587 | #ifndef _WIN32 |
1863 | sigset_t full, prev; |
2588 | sigset_t full, prev; |
1864 | sigfillset (&full); |
2589 | sigfillset (&full); |
1865 | sigprocmask (SIG_SETMASK, &full, &prev); |
2590 | sigprocmask (SIG_SETMASK, &full, &prev); |
1866 | #endif |
2591 | #endif |
1867 | |
2592 | |
1868 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
2593 | array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); |
1869 | |
2594 | |
1870 | #ifndef _WIN32 |
2595 | #ifndef _WIN32 |
1871 | sigprocmask (SIG_SETMASK, &prev, 0); |
2596 | sigprocmask (SIG_SETMASK, &prev, 0); |
1872 | #endif |
2597 | #endif |
1873 | } |
2598 | } |
… | |
… | |
1876 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2601 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
1877 | |
2602 | |
1878 | if (!((WL)w)->next) |
2603 | if (!((WL)w)->next) |
1879 | { |
2604 | { |
1880 | #if _WIN32 |
2605 | #if _WIN32 |
1881 | signal (w->signum, sighandler); |
2606 | signal (w->signum, ev_sighandler); |
1882 | #else |
2607 | #else |
1883 | struct sigaction sa; |
2608 | struct sigaction sa = { }; |
1884 | sa.sa_handler = sighandler; |
2609 | sa.sa_handler = ev_sighandler; |
1885 | sigfillset (&sa.sa_mask); |
2610 | sigfillset (&sa.sa_mask); |
1886 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2611 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1887 | sigaction (w->signum, &sa, 0); |
2612 | sigaction (w->signum, &sa, 0); |
1888 | #endif |
2613 | #endif |
1889 | } |
2614 | } |
|
|
2615 | |
|
|
2616 | EV_FREQUENT_CHECK; |
1890 | } |
2617 | } |
1891 | |
2618 | |
1892 | void noinline |
2619 | void noinline |
1893 | ev_signal_stop (EV_P_ ev_signal *w) |
2620 | ev_signal_stop (EV_P_ ev_signal *w) |
1894 | { |
2621 | { |
1895 | clear_pending (EV_A_ (W)w); |
2622 | clear_pending (EV_A_ (W)w); |
1896 | if (expect_false (!ev_is_active (w))) |
2623 | if (expect_false (!ev_is_active (w))) |
1897 | return; |
2624 | return; |
1898 | |
2625 | |
|
|
2626 | EV_FREQUENT_CHECK; |
|
|
2627 | |
1899 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2628 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
1900 | ev_stop (EV_A_ (W)w); |
2629 | ev_stop (EV_A_ (W)w); |
1901 | |
2630 | |
1902 | if (!signals [w->signum - 1].head) |
2631 | if (!signals [w->signum - 1].head) |
1903 | signal (w->signum, SIG_DFL); |
2632 | signal (w->signum, SIG_DFL); |
|
|
2633 | |
|
|
2634 | EV_FREQUENT_CHECK; |
1904 | } |
2635 | } |
1905 | |
2636 | |
1906 | void |
2637 | void |
1907 | ev_child_start (EV_P_ ev_child *w) |
2638 | ev_child_start (EV_P_ ev_child *w) |
1908 | { |
2639 | { |
1909 | #if EV_MULTIPLICITY |
2640 | #if EV_MULTIPLICITY |
1910 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2641 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1911 | #endif |
2642 | #endif |
1912 | if (expect_false (ev_is_active (w))) |
2643 | if (expect_false (ev_is_active (w))) |
1913 | return; |
2644 | return; |
1914 | |
2645 | |
|
|
2646 | EV_FREQUENT_CHECK; |
|
|
2647 | |
1915 | ev_start (EV_A_ (W)w, 1); |
2648 | ev_start (EV_A_ (W)w, 1); |
1916 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2649 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
|
|
2650 | |
|
|
2651 | EV_FREQUENT_CHECK; |
1917 | } |
2652 | } |
1918 | |
2653 | |
1919 | void |
2654 | void |
1920 | ev_child_stop (EV_P_ ev_child *w) |
2655 | ev_child_stop (EV_P_ ev_child *w) |
1921 | { |
2656 | { |
1922 | clear_pending (EV_A_ (W)w); |
2657 | clear_pending (EV_A_ (W)w); |
1923 | if (expect_false (!ev_is_active (w))) |
2658 | if (expect_false (!ev_is_active (w))) |
1924 | return; |
2659 | return; |
1925 | |
2660 | |
|
|
2661 | EV_FREQUENT_CHECK; |
|
|
2662 | |
1926 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2663 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1927 | ev_stop (EV_A_ (W)w); |
2664 | ev_stop (EV_A_ (W)w); |
|
|
2665 | |
|
|
2666 | EV_FREQUENT_CHECK; |
1928 | } |
2667 | } |
1929 | |
2668 | |
1930 | #if EV_STAT_ENABLE |
2669 | #if EV_STAT_ENABLE |
1931 | |
2670 | |
1932 | # ifdef _WIN32 |
2671 | # ifdef _WIN32 |
1933 | # undef lstat |
2672 | # undef lstat |
1934 | # define lstat(a,b) _stati64 (a,b) |
2673 | # define lstat(a,b) _stati64 (a,b) |
1935 | # endif |
2674 | # endif |
1936 | |
2675 | |
1937 | #define DEF_STAT_INTERVAL 5.0074891 |
2676 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
2677 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
1938 | #define MIN_STAT_INTERVAL 0.1074891 |
2678 | #define MIN_STAT_INTERVAL 0.1074891 |
1939 | |
2679 | |
1940 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2680 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
1941 | |
2681 | |
1942 | #if EV_USE_INOTIFY |
2682 | #if EV_USE_INOTIFY |
1943 | # define EV_INOTIFY_BUFSIZE 8192 |
2683 | # define EV_INOTIFY_BUFSIZE 8192 |
… | |
… | |
1947 | { |
2687 | { |
1948 | 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); |
2688 | 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); |
1949 | |
2689 | |
1950 | if (w->wd < 0) |
2690 | if (w->wd < 0) |
1951 | { |
2691 | { |
|
|
2692 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
1952 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2693 | ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
1953 | |
2694 | |
1954 | /* monitor some parent directory for speedup hints */ |
2695 | /* monitor some parent directory for speedup hints */ |
|
|
2696 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
|
|
2697 | /* but an efficiency issue only */ |
1955 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2698 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
1956 | { |
2699 | { |
1957 | char path [4096]; |
2700 | char path [4096]; |
1958 | strcpy (path, w->path); |
2701 | strcpy (path, w->path); |
1959 | |
2702 | |
… | |
… | |
1962 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2705 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
1963 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2706 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
1964 | |
2707 | |
1965 | char *pend = strrchr (path, '/'); |
2708 | char *pend = strrchr (path, '/'); |
1966 | |
2709 | |
1967 | if (!pend) |
2710 | if (!pend || pend == path) |
1968 | break; /* whoops, no '/', complain to your admin */ |
2711 | break; |
1969 | |
2712 | |
1970 | *pend = 0; |
2713 | *pend = 0; |
1971 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2714 | w->wd = inotify_add_watch (fs_fd, path, mask); |
1972 | } |
2715 | } |
1973 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2716 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
1974 | } |
2717 | } |
1975 | } |
2718 | } |
1976 | else |
|
|
1977 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
1978 | |
2719 | |
1979 | if (w->wd >= 0) |
2720 | if (w->wd >= 0) |
|
|
2721 | { |
1980 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2722 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
2723 | |
|
|
2724 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
2725 | /* unless the filesystem it known to be local, we therefore still poll */ |
|
|
2726 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2727 | struct statfs sfs; |
|
|
2728 | |
|
|
2729 | if (fs_2625 && !statfs (w->path, &sfs)) |
|
|
2730 | if (sfs.f_type == 0x1373 /* devfs */ |
|
|
2731 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2732 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2733 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2734 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2735 | || sfs.f_type == 0x58465342 /* xfs */) |
|
|
2736 | return; |
|
|
2737 | |
|
|
2738 | w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2739 | ev_timer_again (EV_A_ &w->timer); |
|
|
2740 | } |
1981 | } |
2741 | } |
1982 | |
2742 | |
1983 | static void noinline |
2743 | static void noinline |
1984 | infy_del (EV_P_ ev_stat *w) |
2744 | infy_del (EV_P_ ev_stat *w) |
1985 | { |
2745 | { |
… | |
… | |
1999 | |
2759 | |
2000 | static void noinline |
2760 | static void noinline |
2001 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2761 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2002 | { |
2762 | { |
2003 | if (slot < 0) |
2763 | if (slot < 0) |
2004 | /* overflow, need to check for all hahs slots */ |
2764 | /* overflow, need to check for all hash slots */ |
2005 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2765 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2006 | infy_wd (EV_A_ slot, wd, ev); |
2766 | infy_wd (EV_A_ slot, wd, ev); |
2007 | else |
2767 | else |
2008 | { |
2768 | { |
2009 | WL w_; |
2769 | WL w_; |
… | |
… | |
2015 | |
2775 | |
2016 | if (w->wd == wd || wd == -1) |
2776 | if (w->wd == wd || wd == -1) |
2017 | { |
2777 | { |
2018 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2778 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2019 | { |
2779 | { |
|
|
2780 | wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2020 | w->wd = -1; |
2781 | w->wd = -1; |
2021 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2782 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2022 | } |
2783 | } |
2023 | |
2784 | |
2024 | stat_timer_cb (EV_A_ &w->timer, 0); |
2785 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2037 | |
2798 | |
2038 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
2799 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
2039 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
2800 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
2040 | } |
2801 | } |
2041 | |
2802 | |
2042 | void inline_size |
2803 | inline_size void |
|
|
2804 | check_2625 (EV_P) |
|
|
2805 | { |
|
|
2806 | /* kernels < 2.6.25 are borked |
|
|
2807 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
|
|
2808 | */ |
|
|
2809 | struct utsname buf; |
|
|
2810 | int major, minor, micro; |
|
|
2811 | |
|
|
2812 | if (uname (&buf)) |
|
|
2813 | return; |
|
|
2814 | |
|
|
2815 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
|
|
2816 | return; |
|
|
2817 | |
|
|
2818 | if (major < 2 |
|
|
2819 | || (major == 2 && minor < 6) |
|
|
2820 | || (major == 2 && minor == 6 && micro < 25)) |
|
|
2821 | return; |
|
|
2822 | |
|
|
2823 | fs_2625 = 1; |
|
|
2824 | } |
|
|
2825 | |
|
|
2826 | inline_size void |
2043 | infy_init (EV_P) |
2827 | infy_init (EV_P) |
2044 | { |
2828 | { |
2045 | if (fs_fd != -2) |
2829 | if (fs_fd != -2) |
2046 | return; |
2830 | return; |
|
|
2831 | |
|
|
2832 | fs_fd = -1; |
|
|
2833 | |
|
|
2834 | check_2625 (EV_A); |
2047 | |
2835 | |
2048 | fs_fd = inotify_init (); |
2836 | fs_fd = inotify_init (); |
2049 | |
2837 | |
2050 | if (fs_fd >= 0) |
2838 | if (fs_fd >= 0) |
2051 | { |
2839 | { |
… | |
… | |
2053 | ev_set_priority (&fs_w, EV_MAXPRI); |
2841 | ev_set_priority (&fs_w, EV_MAXPRI); |
2054 | ev_io_start (EV_A_ &fs_w); |
2842 | ev_io_start (EV_A_ &fs_w); |
2055 | } |
2843 | } |
2056 | } |
2844 | } |
2057 | |
2845 | |
2058 | void inline_size |
2846 | inline_size void |
2059 | infy_fork (EV_P) |
2847 | infy_fork (EV_P) |
2060 | { |
2848 | { |
2061 | int slot; |
2849 | int slot; |
2062 | |
2850 | |
2063 | if (fs_fd < 0) |
2851 | if (fs_fd < 0) |
… | |
… | |
2079 | w->wd = -1; |
2867 | w->wd = -1; |
2080 | |
2868 | |
2081 | if (fs_fd >= 0) |
2869 | if (fs_fd >= 0) |
2082 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2870 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2083 | else |
2871 | else |
2084 | ev_timer_start (EV_A_ &w->timer); |
2872 | ev_timer_again (EV_A_ &w->timer); |
2085 | } |
2873 | } |
2086 | |
|
|
2087 | } |
2874 | } |
2088 | } |
2875 | } |
2089 | |
2876 | |
|
|
2877 | #endif |
|
|
2878 | |
|
|
2879 | #ifdef _WIN32 |
|
|
2880 | # define EV_LSTAT(p,b) _stati64 (p, b) |
|
|
2881 | #else |
|
|
2882 | # define EV_LSTAT(p,b) lstat (p, b) |
2090 | #endif |
2883 | #endif |
2091 | |
2884 | |
2092 | void |
2885 | void |
2093 | ev_stat_stat (EV_P_ ev_stat *w) |
2886 | ev_stat_stat (EV_P_ ev_stat *w) |
2094 | { |
2887 | { |
… | |
… | |
2121 | || w->prev.st_atime != w->attr.st_atime |
2914 | || w->prev.st_atime != w->attr.st_atime |
2122 | || w->prev.st_mtime != w->attr.st_mtime |
2915 | || w->prev.st_mtime != w->attr.st_mtime |
2123 | || w->prev.st_ctime != w->attr.st_ctime |
2916 | || w->prev.st_ctime != w->attr.st_ctime |
2124 | ) { |
2917 | ) { |
2125 | #if EV_USE_INOTIFY |
2918 | #if EV_USE_INOTIFY |
|
|
2919 | if (fs_fd >= 0) |
|
|
2920 | { |
2126 | infy_del (EV_A_ w); |
2921 | infy_del (EV_A_ w); |
2127 | infy_add (EV_A_ w); |
2922 | infy_add (EV_A_ w); |
2128 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
2923 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
2924 | } |
2129 | #endif |
2925 | #endif |
2130 | |
2926 | |
2131 | ev_feed_event (EV_A_ w, EV_STAT); |
2927 | ev_feed_event (EV_A_ w, EV_STAT); |
2132 | } |
2928 | } |
2133 | } |
2929 | } |
… | |
… | |
2136 | ev_stat_start (EV_P_ ev_stat *w) |
2932 | ev_stat_start (EV_P_ ev_stat *w) |
2137 | { |
2933 | { |
2138 | if (expect_false (ev_is_active (w))) |
2934 | if (expect_false (ev_is_active (w))) |
2139 | return; |
2935 | return; |
2140 | |
2936 | |
2141 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2142 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2143 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2144 | |
|
|
2145 | ev_stat_stat (EV_A_ w); |
2937 | ev_stat_stat (EV_A_ w); |
2146 | |
2938 | |
|
|
2939 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
2147 | if (w->interval < MIN_STAT_INTERVAL) |
2940 | w->interval = MIN_STAT_INTERVAL; |
2148 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2149 | |
2941 | |
2150 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
2942 | ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL); |
2151 | ev_set_priority (&w->timer, ev_priority (w)); |
2943 | ev_set_priority (&w->timer, ev_priority (w)); |
2152 | |
2944 | |
2153 | #if EV_USE_INOTIFY |
2945 | #if EV_USE_INOTIFY |
2154 | infy_init (EV_A); |
2946 | infy_init (EV_A); |
2155 | |
2947 | |
2156 | if (fs_fd >= 0) |
2948 | if (fs_fd >= 0) |
2157 | infy_add (EV_A_ w); |
2949 | infy_add (EV_A_ w); |
2158 | else |
2950 | else |
2159 | #endif |
2951 | #endif |
2160 | ev_timer_start (EV_A_ &w->timer); |
2952 | ev_timer_again (EV_A_ &w->timer); |
2161 | |
2953 | |
2162 | ev_start (EV_A_ (W)w, 1); |
2954 | ev_start (EV_A_ (W)w, 1); |
|
|
2955 | |
|
|
2956 | EV_FREQUENT_CHECK; |
2163 | } |
2957 | } |
2164 | |
2958 | |
2165 | void |
2959 | void |
2166 | ev_stat_stop (EV_P_ ev_stat *w) |
2960 | ev_stat_stop (EV_P_ ev_stat *w) |
2167 | { |
2961 | { |
2168 | clear_pending (EV_A_ (W)w); |
2962 | clear_pending (EV_A_ (W)w); |
2169 | if (expect_false (!ev_is_active (w))) |
2963 | if (expect_false (!ev_is_active (w))) |
2170 | return; |
2964 | return; |
2171 | |
2965 | |
|
|
2966 | EV_FREQUENT_CHECK; |
|
|
2967 | |
2172 | #if EV_USE_INOTIFY |
2968 | #if EV_USE_INOTIFY |
2173 | infy_del (EV_A_ w); |
2969 | infy_del (EV_A_ w); |
2174 | #endif |
2970 | #endif |
2175 | ev_timer_stop (EV_A_ &w->timer); |
2971 | ev_timer_stop (EV_A_ &w->timer); |
2176 | |
2972 | |
2177 | ev_stop (EV_A_ (W)w); |
2973 | ev_stop (EV_A_ (W)w); |
|
|
2974 | |
|
|
2975 | EV_FREQUENT_CHECK; |
2178 | } |
2976 | } |
2179 | #endif |
2977 | #endif |
2180 | |
2978 | |
2181 | #if EV_IDLE_ENABLE |
2979 | #if EV_IDLE_ENABLE |
2182 | void |
2980 | void |
… | |
… | |
2184 | { |
2982 | { |
2185 | if (expect_false (ev_is_active (w))) |
2983 | if (expect_false (ev_is_active (w))) |
2186 | return; |
2984 | return; |
2187 | |
2985 | |
2188 | pri_adjust (EV_A_ (W)w); |
2986 | pri_adjust (EV_A_ (W)w); |
|
|
2987 | |
|
|
2988 | EV_FREQUENT_CHECK; |
2189 | |
2989 | |
2190 | { |
2990 | { |
2191 | int active = ++idlecnt [ABSPRI (w)]; |
2991 | int active = ++idlecnt [ABSPRI (w)]; |
2192 | |
2992 | |
2193 | ++idleall; |
2993 | ++idleall; |
2194 | ev_start (EV_A_ (W)w, active); |
2994 | ev_start (EV_A_ (W)w, active); |
2195 | |
2995 | |
2196 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
2996 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
2197 | idles [ABSPRI (w)][active - 1] = w; |
2997 | idles [ABSPRI (w)][active - 1] = w; |
2198 | } |
2998 | } |
|
|
2999 | |
|
|
3000 | EV_FREQUENT_CHECK; |
2199 | } |
3001 | } |
2200 | |
3002 | |
2201 | void |
3003 | void |
2202 | ev_idle_stop (EV_P_ ev_idle *w) |
3004 | ev_idle_stop (EV_P_ ev_idle *w) |
2203 | { |
3005 | { |
2204 | clear_pending (EV_A_ (W)w); |
3006 | clear_pending (EV_A_ (W)w); |
2205 | if (expect_false (!ev_is_active (w))) |
3007 | if (expect_false (!ev_is_active (w))) |
2206 | return; |
3008 | return; |
2207 | |
3009 | |
|
|
3010 | EV_FREQUENT_CHECK; |
|
|
3011 | |
2208 | { |
3012 | { |
2209 | int active = ((W)w)->active; |
3013 | int active = ev_active (w); |
2210 | |
3014 | |
2211 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
3015 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2212 | ((W)idles [ABSPRI (w)][active - 1])->active = active; |
3016 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
2213 | |
3017 | |
2214 | ev_stop (EV_A_ (W)w); |
3018 | ev_stop (EV_A_ (W)w); |
2215 | --idleall; |
3019 | --idleall; |
2216 | } |
3020 | } |
|
|
3021 | |
|
|
3022 | EV_FREQUENT_CHECK; |
2217 | } |
3023 | } |
2218 | #endif |
3024 | #endif |
2219 | |
3025 | |
2220 | void |
3026 | void |
2221 | ev_prepare_start (EV_P_ ev_prepare *w) |
3027 | ev_prepare_start (EV_P_ ev_prepare *w) |
2222 | { |
3028 | { |
2223 | if (expect_false (ev_is_active (w))) |
3029 | if (expect_false (ev_is_active (w))) |
2224 | return; |
3030 | return; |
|
|
3031 | |
|
|
3032 | EV_FREQUENT_CHECK; |
2225 | |
3033 | |
2226 | ev_start (EV_A_ (W)w, ++preparecnt); |
3034 | ev_start (EV_A_ (W)w, ++preparecnt); |
2227 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
3035 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
2228 | prepares [preparecnt - 1] = w; |
3036 | prepares [preparecnt - 1] = w; |
|
|
3037 | |
|
|
3038 | EV_FREQUENT_CHECK; |
2229 | } |
3039 | } |
2230 | |
3040 | |
2231 | void |
3041 | void |
2232 | ev_prepare_stop (EV_P_ ev_prepare *w) |
3042 | ev_prepare_stop (EV_P_ ev_prepare *w) |
2233 | { |
3043 | { |
2234 | clear_pending (EV_A_ (W)w); |
3044 | clear_pending (EV_A_ (W)w); |
2235 | if (expect_false (!ev_is_active (w))) |
3045 | if (expect_false (!ev_is_active (w))) |
2236 | return; |
3046 | return; |
2237 | |
3047 | |
|
|
3048 | EV_FREQUENT_CHECK; |
|
|
3049 | |
2238 | { |
3050 | { |
2239 | int active = ((W)w)->active; |
3051 | int active = ev_active (w); |
|
|
3052 | |
2240 | prepares [active - 1] = prepares [--preparecnt]; |
3053 | prepares [active - 1] = prepares [--preparecnt]; |
2241 | ((W)prepares [active - 1])->active = active; |
3054 | ev_active (prepares [active - 1]) = active; |
2242 | } |
3055 | } |
2243 | |
3056 | |
2244 | ev_stop (EV_A_ (W)w); |
3057 | ev_stop (EV_A_ (W)w); |
|
|
3058 | |
|
|
3059 | EV_FREQUENT_CHECK; |
2245 | } |
3060 | } |
2246 | |
3061 | |
2247 | void |
3062 | void |
2248 | ev_check_start (EV_P_ ev_check *w) |
3063 | ev_check_start (EV_P_ ev_check *w) |
2249 | { |
3064 | { |
2250 | if (expect_false (ev_is_active (w))) |
3065 | if (expect_false (ev_is_active (w))) |
2251 | return; |
3066 | return; |
|
|
3067 | |
|
|
3068 | EV_FREQUENT_CHECK; |
2252 | |
3069 | |
2253 | ev_start (EV_A_ (W)w, ++checkcnt); |
3070 | ev_start (EV_A_ (W)w, ++checkcnt); |
2254 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
3071 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
2255 | checks [checkcnt - 1] = w; |
3072 | checks [checkcnt - 1] = w; |
|
|
3073 | |
|
|
3074 | EV_FREQUENT_CHECK; |
2256 | } |
3075 | } |
2257 | |
3076 | |
2258 | void |
3077 | void |
2259 | ev_check_stop (EV_P_ ev_check *w) |
3078 | ev_check_stop (EV_P_ ev_check *w) |
2260 | { |
3079 | { |
2261 | clear_pending (EV_A_ (W)w); |
3080 | clear_pending (EV_A_ (W)w); |
2262 | if (expect_false (!ev_is_active (w))) |
3081 | if (expect_false (!ev_is_active (w))) |
2263 | return; |
3082 | return; |
2264 | |
3083 | |
|
|
3084 | EV_FREQUENT_CHECK; |
|
|
3085 | |
2265 | { |
3086 | { |
2266 | int active = ((W)w)->active; |
3087 | int active = ev_active (w); |
|
|
3088 | |
2267 | checks [active - 1] = checks [--checkcnt]; |
3089 | checks [active - 1] = checks [--checkcnt]; |
2268 | ((W)checks [active - 1])->active = active; |
3090 | ev_active (checks [active - 1]) = active; |
2269 | } |
3091 | } |
2270 | |
3092 | |
2271 | ev_stop (EV_A_ (W)w); |
3093 | ev_stop (EV_A_ (W)w); |
|
|
3094 | |
|
|
3095 | EV_FREQUENT_CHECK; |
2272 | } |
3096 | } |
2273 | |
3097 | |
2274 | #if EV_EMBED_ENABLE |
3098 | #if EV_EMBED_ENABLE |
2275 | void noinline |
3099 | void noinline |
2276 | ev_embed_sweep (EV_P_ ev_embed *w) |
3100 | ev_embed_sweep (EV_P_ ev_embed *w) |
… | |
… | |
2303 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3127 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
2304 | } |
3128 | } |
2305 | } |
3129 | } |
2306 | } |
3130 | } |
2307 | |
3131 | |
|
|
3132 | static void |
|
|
3133 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
|
|
3134 | { |
|
|
3135 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
|
|
3136 | |
|
|
3137 | ev_embed_stop (EV_A_ w); |
|
|
3138 | |
|
|
3139 | { |
|
|
3140 | struct ev_loop *loop = w->other; |
|
|
3141 | |
|
|
3142 | ev_loop_fork (EV_A); |
|
|
3143 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
3144 | } |
|
|
3145 | |
|
|
3146 | ev_embed_start (EV_A_ w); |
|
|
3147 | } |
|
|
3148 | |
2308 | #if 0 |
3149 | #if 0 |
2309 | static void |
3150 | static void |
2310 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
3151 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
2311 | { |
3152 | { |
2312 | ev_idle_stop (EV_A_ idle); |
3153 | ev_idle_stop (EV_A_ idle); |
… | |
… | |
2319 | if (expect_false (ev_is_active (w))) |
3160 | if (expect_false (ev_is_active (w))) |
2320 | return; |
3161 | return; |
2321 | |
3162 | |
2322 | { |
3163 | { |
2323 | struct ev_loop *loop = w->other; |
3164 | struct ev_loop *loop = w->other; |
2324 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3165 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2325 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3166 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2326 | } |
3167 | } |
|
|
3168 | |
|
|
3169 | EV_FREQUENT_CHECK; |
2327 | |
3170 | |
2328 | ev_set_priority (&w->io, ev_priority (w)); |
3171 | ev_set_priority (&w->io, ev_priority (w)); |
2329 | ev_io_start (EV_A_ &w->io); |
3172 | ev_io_start (EV_A_ &w->io); |
2330 | |
3173 | |
2331 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
3174 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
2332 | ev_set_priority (&w->prepare, EV_MINPRI); |
3175 | ev_set_priority (&w->prepare, EV_MINPRI); |
2333 | ev_prepare_start (EV_A_ &w->prepare); |
3176 | ev_prepare_start (EV_A_ &w->prepare); |
2334 | |
3177 | |
|
|
3178 | ev_fork_init (&w->fork, embed_fork_cb); |
|
|
3179 | ev_fork_start (EV_A_ &w->fork); |
|
|
3180 | |
2335 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
3181 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
2336 | |
3182 | |
2337 | ev_start (EV_A_ (W)w, 1); |
3183 | ev_start (EV_A_ (W)w, 1); |
|
|
3184 | |
|
|
3185 | EV_FREQUENT_CHECK; |
2338 | } |
3186 | } |
2339 | |
3187 | |
2340 | void |
3188 | void |
2341 | ev_embed_stop (EV_P_ ev_embed *w) |
3189 | ev_embed_stop (EV_P_ ev_embed *w) |
2342 | { |
3190 | { |
2343 | clear_pending (EV_A_ (W)w); |
3191 | clear_pending (EV_A_ (W)w); |
2344 | if (expect_false (!ev_is_active (w))) |
3192 | if (expect_false (!ev_is_active (w))) |
2345 | return; |
3193 | return; |
2346 | |
3194 | |
|
|
3195 | EV_FREQUENT_CHECK; |
|
|
3196 | |
2347 | ev_io_stop (EV_A_ &w->io); |
3197 | ev_io_stop (EV_A_ &w->io); |
2348 | ev_prepare_stop (EV_A_ &w->prepare); |
3198 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
3199 | ev_fork_stop (EV_A_ &w->fork); |
2349 | |
3200 | |
2350 | ev_stop (EV_A_ (W)w); |
3201 | EV_FREQUENT_CHECK; |
2351 | } |
3202 | } |
2352 | #endif |
3203 | #endif |
2353 | |
3204 | |
2354 | #if EV_FORK_ENABLE |
3205 | #if EV_FORK_ENABLE |
2355 | void |
3206 | void |
2356 | ev_fork_start (EV_P_ ev_fork *w) |
3207 | ev_fork_start (EV_P_ ev_fork *w) |
2357 | { |
3208 | { |
2358 | if (expect_false (ev_is_active (w))) |
3209 | if (expect_false (ev_is_active (w))) |
2359 | return; |
3210 | return; |
|
|
3211 | |
|
|
3212 | EV_FREQUENT_CHECK; |
2360 | |
3213 | |
2361 | ev_start (EV_A_ (W)w, ++forkcnt); |
3214 | ev_start (EV_A_ (W)w, ++forkcnt); |
2362 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
3215 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
2363 | forks [forkcnt - 1] = w; |
3216 | forks [forkcnt - 1] = w; |
|
|
3217 | |
|
|
3218 | EV_FREQUENT_CHECK; |
2364 | } |
3219 | } |
2365 | |
3220 | |
2366 | void |
3221 | void |
2367 | ev_fork_stop (EV_P_ ev_fork *w) |
3222 | ev_fork_stop (EV_P_ ev_fork *w) |
2368 | { |
3223 | { |
2369 | clear_pending (EV_A_ (W)w); |
3224 | clear_pending (EV_A_ (W)w); |
2370 | if (expect_false (!ev_is_active (w))) |
3225 | if (expect_false (!ev_is_active (w))) |
2371 | return; |
3226 | return; |
2372 | |
3227 | |
|
|
3228 | EV_FREQUENT_CHECK; |
|
|
3229 | |
2373 | { |
3230 | { |
2374 | int active = ((W)w)->active; |
3231 | int active = ev_active (w); |
|
|
3232 | |
2375 | forks [active - 1] = forks [--forkcnt]; |
3233 | forks [active - 1] = forks [--forkcnt]; |
2376 | ((W)forks [active - 1])->active = active; |
3234 | ev_active (forks [active - 1]) = active; |
2377 | } |
3235 | } |
2378 | |
3236 | |
2379 | ev_stop (EV_A_ (W)w); |
3237 | ev_stop (EV_A_ (W)w); |
|
|
3238 | |
|
|
3239 | EV_FREQUENT_CHECK; |
|
|
3240 | } |
|
|
3241 | #endif |
|
|
3242 | |
|
|
3243 | #if EV_ASYNC_ENABLE |
|
|
3244 | void |
|
|
3245 | ev_async_start (EV_P_ ev_async *w) |
|
|
3246 | { |
|
|
3247 | if (expect_false (ev_is_active (w))) |
|
|
3248 | return; |
|
|
3249 | |
|
|
3250 | evpipe_init (EV_A); |
|
|
3251 | |
|
|
3252 | EV_FREQUENT_CHECK; |
|
|
3253 | |
|
|
3254 | ev_start (EV_A_ (W)w, ++asynccnt); |
|
|
3255 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
|
|
3256 | asyncs [asynccnt - 1] = w; |
|
|
3257 | |
|
|
3258 | EV_FREQUENT_CHECK; |
|
|
3259 | } |
|
|
3260 | |
|
|
3261 | void |
|
|
3262 | ev_async_stop (EV_P_ ev_async *w) |
|
|
3263 | { |
|
|
3264 | clear_pending (EV_A_ (W)w); |
|
|
3265 | if (expect_false (!ev_is_active (w))) |
|
|
3266 | return; |
|
|
3267 | |
|
|
3268 | EV_FREQUENT_CHECK; |
|
|
3269 | |
|
|
3270 | { |
|
|
3271 | int active = ev_active (w); |
|
|
3272 | |
|
|
3273 | asyncs [active - 1] = asyncs [--asynccnt]; |
|
|
3274 | ev_active (asyncs [active - 1]) = active; |
|
|
3275 | } |
|
|
3276 | |
|
|
3277 | ev_stop (EV_A_ (W)w); |
|
|
3278 | |
|
|
3279 | EV_FREQUENT_CHECK; |
|
|
3280 | } |
|
|
3281 | |
|
|
3282 | void |
|
|
3283 | ev_async_send (EV_P_ ev_async *w) |
|
|
3284 | { |
|
|
3285 | w->sent = 1; |
|
|
3286 | evpipe_write (EV_A_ &gotasync); |
2380 | } |
3287 | } |
2381 | #endif |
3288 | #endif |
2382 | |
3289 | |
2383 | /*****************************************************************************/ |
3290 | /*****************************************************************************/ |
2384 | |
3291 | |
… | |
… | |
2394 | once_cb (EV_P_ struct ev_once *once, int revents) |
3301 | once_cb (EV_P_ struct ev_once *once, int revents) |
2395 | { |
3302 | { |
2396 | void (*cb)(int revents, void *arg) = once->cb; |
3303 | void (*cb)(int revents, void *arg) = once->cb; |
2397 | void *arg = once->arg; |
3304 | void *arg = once->arg; |
2398 | |
3305 | |
2399 | ev_io_stop (EV_A_ &once->io); |
3306 | ev_io_stop (EV_A_ &once->io); |
2400 | ev_timer_stop (EV_A_ &once->to); |
3307 | ev_timer_stop (EV_A_ &once->to); |
2401 | ev_free (once); |
3308 | ev_free (once); |
2402 | |
3309 | |
2403 | cb (revents, arg); |
3310 | cb (revents, arg); |
2404 | } |
3311 | } |
2405 | |
3312 | |
2406 | static void |
3313 | static void |
2407 | once_cb_io (EV_P_ ev_io *w, int revents) |
3314 | once_cb_io (EV_P_ ev_io *w, int revents) |
2408 | { |
3315 | { |
2409 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
3316 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)); |
|
|
3317 | |
|
|
3318 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to)); |
2410 | } |
3319 | } |
2411 | |
3320 | |
2412 | static void |
3321 | static void |
2413 | once_cb_to (EV_P_ ev_timer *w, int revents) |
3322 | once_cb_to (EV_P_ ev_timer *w, int revents) |
2414 | { |
3323 | { |
2415 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
3324 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)); |
|
|
3325 | |
|
|
3326 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
2416 | } |
3327 | } |
2417 | |
3328 | |
2418 | void |
3329 | void |
2419 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
3330 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
2420 | { |
3331 | { |
… | |
… | |
2442 | ev_timer_set (&once->to, timeout, 0.); |
3353 | ev_timer_set (&once->to, timeout, 0.); |
2443 | ev_timer_start (EV_A_ &once->to); |
3354 | ev_timer_start (EV_A_ &once->to); |
2444 | } |
3355 | } |
2445 | } |
3356 | } |
2446 | |
3357 | |
|
|
3358 | /*****************************************************************************/ |
|
|
3359 | |
|
|
3360 | #if EV_WALK_ENABLE |
|
|
3361 | void |
|
|
3362 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
|
|
3363 | { |
|
|
3364 | int i, j; |
|
|
3365 | ev_watcher_list *wl, *wn; |
|
|
3366 | |
|
|
3367 | if (types & (EV_IO | EV_EMBED)) |
|
|
3368 | for (i = 0; i < anfdmax; ++i) |
|
|
3369 | for (wl = anfds [i].head; wl; ) |
|
|
3370 | { |
|
|
3371 | wn = wl->next; |
|
|
3372 | |
|
|
3373 | #if EV_EMBED_ENABLE |
|
|
3374 | if (ev_cb ((ev_io *)wl) == embed_io_cb) |
|
|
3375 | { |
|
|
3376 | if (types & EV_EMBED) |
|
|
3377 | cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io)); |
|
|
3378 | } |
|
|
3379 | else |
|
|
3380 | #endif |
|
|
3381 | #if EV_USE_INOTIFY |
|
|
3382 | if (ev_cb ((ev_io *)wl) == infy_cb) |
|
|
3383 | ; |
|
|
3384 | else |
|
|
3385 | #endif |
|
|
3386 | if ((ev_io *)wl != &pipe_w) |
|
|
3387 | if (types & EV_IO) |
|
|
3388 | cb (EV_A_ EV_IO, wl); |
|
|
3389 | |
|
|
3390 | wl = wn; |
|
|
3391 | } |
|
|
3392 | |
|
|
3393 | if (types & (EV_TIMER | EV_STAT)) |
|
|
3394 | for (i = timercnt + HEAP0; i-- > HEAP0; ) |
|
|
3395 | #if EV_STAT_ENABLE |
|
|
3396 | /*TODO: timer is not always active*/ |
|
|
3397 | if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb) |
|
|
3398 | { |
|
|
3399 | if (types & EV_STAT) |
|
|
3400 | cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer)); |
|
|
3401 | } |
|
|
3402 | else |
|
|
3403 | #endif |
|
|
3404 | if (types & EV_TIMER) |
|
|
3405 | cb (EV_A_ EV_TIMER, ANHE_w (timers [i])); |
|
|
3406 | |
|
|
3407 | #if EV_PERIODIC_ENABLE |
|
|
3408 | if (types & EV_PERIODIC) |
|
|
3409 | for (i = periodiccnt + HEAP0; i-- > HEAP0; ) |
|
|
3410 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
|
|
3411 | #endif |
|
|
3412 | |
|
|
3413 | #if EV_IDLE_ENABLE |
|
|
3414 | if (types & EV_IDLE) |
|
|
3415 | for (j = NUMPRI; i--; ) |
|
|
3416 | for (i = idlecnt [j]; i--; ) |
|
|
3417 | cb (EV_A_ EV_IDLE, idles [j][i]); |
|
|
3418 | #endif |
|
|
3419 | |
|
|
3420 | #if EV_FORK_ENABLE |
|
|
3421 | if (types & EV_FORK) |
|
|
3422 | for (i = forkcnt; i--; ) |
|
|
3423 | if (ev_cb (forks [i]) != embed_fork_cb) |
|
|
3424 | cb (EV_A_ EV_FORK, forks [i]); |
|
|
3425 | #endif |
|
|
3426 | |
|
|
3427 | #if EV_ASYNC_ENABLE |
|
|
3428 | if (types & EV_ASYNC) |
|
|
3429 | for (i = asynccnt; i--; ) |
|
|
3430 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
|
|
3431 | #endif |
|
|
3432 | |
|
|
3433 | if (types & EV_PREPARE) |
|
|
3434 | for (i = preparecnt; i--; ) |
|
|
3435 | #if EV_EMBED_ENABLE |
|
|
3436 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
|
|
3437 | #endif |
|
|
3438 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
3439 | |
|
|
3440 | if (types & EV_CHECK) |
|
|
3441 | for (i = checkcnt; i--; ) |
|
|
3442 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
3443 | |
|
|
3444 | if (types & EV_SIGNAL) |
|
|
3445 | for (i = 0; i < signalmax; ++i) |
|
|
3446 | for (wl = signals [i].head; wl; ) |
|
|
3447 | { |
|
|
3448 | wn = wl->next; |
|
|
3449 | cb (EV_A_ EV_SIGNAL, wl); |
|
|
3450 | wl = wn; |
|
|
3451 | } |
|
|
3452 | |
|
|
3453 | if (types & EV_CHILD) |
|
|
3454 | for (i = EV_PID_HASHSIZE; i--; ) |
|
|
3455 | for (wl = childs [i]; wl; ) |
|
|
3456 | { |
|
|
3457 | wn = wl->next; |
|
|
3458 | cb (EV_A_ EV_CHILD, wl); |
|
|
3459 | wl = wn; |
|
|
3460 | } |
|
|
3461 | /* EV_STAT 0x00001000 /* stat data changed */ |
|
|
3462 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
|
|
3463 | } |
|
|
3464 | #endif |
|
|
3465 | |
2447 | #if EV_MULTIPLICITY |
3466 | #if EV_MULTIPLICITY |
2448 | #include "ev_wrap.h" |
3467 | #include "ev_wrap.h" |
2449 | #endif |
3468 | #endif |
2450 | |
3469 | |
2451 | #ifdef __cplusplus |
3470 | #ifdef __cplusplus |