1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libev@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * tion, are permitted provided that the following conditions are met: |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * |
9 | * |
… | |
… | |
47 | # include EV_CONFIG_H |
47 | # include EV_CONFIG_H |
48 | # else |
48 | # else |
49 | # include "config.h" |
49 | # include "config.h" |
50 | # endif |
50 | # endif |
51 | |
51 | |
|
|
52 | # if HAVE_CLOCK_SYSCALL |
|
|
53 | # ifndef EV_USE_CLOCK_SYSCALL |
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|
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 |
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|
60 | # endif |
|
|
61 | # endif |
|
|
62 | # elif !defined(EV_USE_CLOCK_SYSCALL) |
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63 | # define EV_USE_CLOCK_SYSCALL 0 |
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|
64 | # endif |
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|
65 | |
52 | # if HAVE_CLOCK_GETTIME |
66 | # if HAVE_CLOCK_GETTIME |
53 | # ifndef EV_USE_MONOTONIC |
67 | # ifndef EV_USE_MONOTONIC |
54 | # define EV_USE_MONOTONIC 1 |
68 | # define EV_USE_MONOTONIC 1 |
55 | # endif |
69 | # endif |
56 | # ifndef EV_USE_REALTIME |
70 | # ifndef EV_USE_REALTIME |
57 | # define EV_USE_REALTIME 1 |
71 | # define EV_USE_REALTIME 0 |
58 | # endif |
72 | # endif |
59 | # else |
73 | # else |
60 | # ifndef EV_USE_MONOTONIC |
74 | # ifndef EV_USE_MONOTONIC |
61 | # define EV_USE_MONOTONIC 0 |
75 | # define EV_USE_MONOTONIC 0 |
62 | # endif |
76 | # endif |
… | |
… | |
119 | # else |
133 | # else |
120 | # define EV_USE_INOTIFY 0 |
134 | # define EV_USE_INOTIFY 0 |
121 | # endif |
135 | # endif |
122 | # endif |
136 | # endif |
123 | |
137 | |
|
|
138 | # ifndef EV_USE_SIGNALFD |
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|
139 | # if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H |
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140 | # define EV_USE_SIGNALFD 1 |
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141 | # else |
|
|
142 | # define EV_USE_SIGNALFD 0 |
|
|
143 | # endif |
|
|
144 | # endif |
|
|
145 | |
124 | # ifndef EV_USE_EVENTFD |
146 | # ifndef EV_USE_EVENTFD |
125 | # if HAVE_EVENTFD |
147 | # if HAVE_EVENTFD |
126 | # define EV_USE_EVENTFD 1 |
148 | # define EV_USE_EVENTFD 1 |
127 | # else |
149 | # else |
128 | # define EV_USE_EVENTFD 0 |
150 | # define EV_USE_EVENTFD 0 |
… | |
… | |
164 | # endif |
186 | # endif |
165 | #endif |
187 | #endif |
166 | |
188 | |
167 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
189 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
168 | |
190 | |
|
|
191 | #ifndef EV_USE_CLOCK_SYSCALL |
|
|
192 | # if __linux && __GLIBC__ >= 2 |
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|
193 | # define EV_USE_CLOCK_SYSCALL 1 |
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|
194 | # else |
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|
195 | # define EV_USE_CLOCK_SYSCALL 0 |
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|
196 | # endif |
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|
197 | #endif |
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|
198 | |
169 | #ifndef EV_USE_MONOTONIC |
199 | #ifndef EV_USE_MONOTONIC |
170 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
200 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
171 | # define EV_USE_MONOTONIC 1 |
201 | # define EV_USE_MONOTONIC 1 |
172 | # else |
202 | # else |
173 | # define EV_USE_MONOTONIC 0 |
203 | # define EV_USE_MONOTONIC 0 |
174 | # endif |
204 | # endif |
175 | #endif |
205 | #endif |
176 | |
206 | |
177 | #ifndef EV_USE_REALTIME |
207 | #ifndef EV_USE_REALTIME |
178 | # define EV_USE_REALTIME 0 |
208 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
179 | #endif |
209 | #endif |
180 | |
210 | |
181 | #ifndef EV_USE_NANOSLEEP |
211 | #ifndef EV_USE_NANOSLEEP |
182 | # if _POSIX_C_SOURCE >= 199309L |
212 | # if _POSIX_C_SOURCE >= 199309L |
183 | # define EV_USE_NANOSLEEP 1 |
213 | # define EV_USE_NANOSLEEP 1 |
… | |
… | |
244 | # else |
274 | # else |
245 | # define EV_USE_EVENTFD 0 |
275 | # define EV_USE_EVENTFD 0 |
246 | # endif |
276 | # endif |
247 | #endif |
277 | #endif |
248 | |
278 | |
|
|
279 | #ifndef EV_USE_SIGNALFD |
|
|
280 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 9)) |
|
|
281 | # define EV_USE_SIGNALFD 1 |
|
|
282 | # else |
|
|
283 | # define EV_USE_SIGNALFD 0 |
|
|
284 | # endif |
|
|
285 | #endif |
|
|
286 | |
249 | #if 0 /* debugging */ |
287 | #if 0 /* debugging */ |
250 | # define EV_VERIFY 3 |
288 | # define EV_VERIFY 3 |
251 | # define EV_USE_4HEAP 1 |
289 | # define EV_USE_4HEAP 1 |
252 | # define EV_HEAP_CACHE_AT 1 |
290 | # define EV_HEAP_CACHE_AT 1 |
253 | #endif |
291 | #endif |
… | |
… | |
262 | |
300 | |
263 | #ifndef EV_HEAP_CACHE_AT |
301 | #ifndef EV_HEAP_CACHE_AT |
264 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
302 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
265 | #endif |
303 | #endif |
266 | |
304 | |
|
|
305 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
|
|
306 | /* which makes programs even slower. might work on other unices, too. */ |
|
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307 | #if EV_USE_CLOCK_SYSCALL |
|
|
308 | # include <syscall.h> |
|
|
309 | # ifdef SYS_clock_gettime |
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310 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
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311 | # undef EV_USE_MONOTONIC |
|
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312 | # define EV_USE_MONOTONIC 1 |
|
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313 | # else |
|
|
314 | # undef EV_USE_CLOCK_SYSCALL |
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315 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
316 | # endif |
|
|
317 | #endif |
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|
318 | |
267 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
319 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
268 | |
320 | |
269 | #ifndef CLOCK_MONOTONIC |
321 | #ifndef CLOCK_MONOTONIC |
270 | # undef EV_USE_MONOTONIC |
322 | # undef EV_USE_MONOTONIC |
271 | # define EV_USE_MONOTONIC 0 |
323 | # define EV_USE_MONOTONIC 0 |
… | |
… | |
286 | # include <sys/select.h> |
338 | # include <sys/select.h> |
287 | # endif |
339 | # endif |
288 | #endif |
340 | #endif |
289 | |
341 | |
290 | #if EV_USE_INOTIFY |
342 | #if EV_USE_INOTIFY |
|
|
343 | # include <sys/utsname.h> |
|
|
344 | # include <sys/statfs.h> |
291 | # include <sys/inotify.h> |
345 | # include <sys/inotify.h> |
|
|
346 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
|
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347 | # ifndef IN_DONT_FOLLOW |
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348 | # undef EV_USE_INOTIFY |
|
|
349 | # define EV_USE_INOTIFY 0 |
|
|
350 | # endif |
292 | #endif |
351 | #endif |
293 | |
352 | |
294 | #if EV_SELECT_IS_WINSOCKET |
353 | #if EV_SELECT_IS_WINSOCKET |
295 | # include <winsock.h> |
354 | # include <winsock.h> |
296 | #endif |
355 | #endif |
297 | |
356 | |
298 | #if EV_USE_EVENTFD |
357 | #if EV_USE_EVENTFD |
299 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
358 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
300 | # include <stdint.h> |
359 | # include <stdint.h> |
|
|
360 | # ifndef EFD_NONBLOCK |
|
|
361 | # define EFD_NONBLOCK O_NONBLOCK |
|
|
362 | # endif |
|
|
363 | # ifndef EFD_CLOEXEC |
|
|
364 | # define EFD_CLOEXEC O_CLOEXEC |
|
|
365 | # endif |
301 | # ifdef __cplusplus |
366 | # ifdef __cplusplus |
302 | extern "C" { |
367 | extern "C" { |
303 | # endif |
368 | # endif |
304 | int eventfd (unsigned int initval, int flags); |
369 | int eventfd (unsigned int initval, int flags); |
305 | # ifdef __cplusplus |
370 | # ifdef __cplusplus |
306 | } |
371 | } |
307 | # endif |
372 | # endif |
|
|
373 | #endif |
|
|
374 | |
|
|
375 | #if EV_USE_SIGNALFD |
|
|
376 | # include <sys/signalfd.h> |
308 | #endif |
377 | #endif |
309 | |
378 | |
310 | /**/ |
379 | /**/ |
311 | |
380 | |
312 | #if EV_VERIFY >= 3 |
381 | #if EV_VERIFY >= 3 |
… | |
… | |
348 | # define inline_speed static noinline |
417 | # define inline_speed static noinline |
349 | #else |
418 | #else |
350 | # define inline_speed static inline |
419 | # define inline_speed static inline |
351 | #endif |
420 | #endif |
352 | |
421 | |
353 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
422 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
423 | |
|
|
424 | #if EV_MINPRI == EV_MAXPRI |
|
|
425 | # define ABSPRI(w) (((W)w), 0) |
|
|
426 | #else |
354 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
427 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
|
|
428 | #endif |
355 | |
429 | |
356 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
430 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
357 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
431 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
358 | |
432 | |
359 | typedef ev_watcher *W; |
433 | typedef ev_watcher *W; |
… | |
… | |
361 | typedef ev_watcher_time *WT; |
435 | typedef ev_watcher_time *WT; |
362 | |
436 | |
363 | #define ev_active(w) ((W)(w))->active |
437 | #define ev_active(w) ((W)(w))->active |
364 | #define ev_at(w) ((WT)(w))->at |
438 | #define ev_at(w) ((WT)(w))->at |
365 | |
439 | |
366 | #if EV_USE_MONOTONIC |
440 | #if EV_USE_REALTIME |
367 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
441 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
368 | /* giving it a reasonably high chance of working on typical architetcures */ |
442 | /* giving it a reasonably high chance of working on typical architetcures */ |
|
|
443 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
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444 | #endif |
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445 | |
|
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446 | #if EV_USE_MONOTONIC |
369 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
447 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
370 | #endif |
448 | #endif |
371 | |
449 | |
372 | #ifdef _WIN32 |
450 | #ifdef _WIN32 |
373 | # include "ev_win32.c" |
451 | # include "ev_win32.c" |
… | |
… | |
382 | { |
460 | { |
383 | syserr_cb = cb; |
461 | syserr_cb = cb; |
384 | } |
462 | } |
385 | |
463 | |
386 | static void noinline |
464 | static void noinline |
387 | syserr (const char *msg) |
465 | ev_syserr (const char *msg) |
388 | { |
466 | { |
389 | if (!msg) |
467 | if (!msg) |
390 | msg = "(libev) system error"; |
468 | msg = "(libev) system error"; |
391 | |
469 | |
392 | if (syserr_cb) |
470 | if (syserr_cb) |
… | |
… | |
438 | #define ev_malloc(size) ev_realloc (0, (size)) |
516 | #define ev_malloc(size) ev_realloc (0, (size)) |
439 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
517 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
440 | |
518 | |
441 | /*****************************************************************************/ |
519 | /*****************************************************************************/ |
442 | |
520 | |
|
|
521 | /* set in reify when reification needed */ |
|
|
522 | #define EV_ANFD_REIFY 1 |
|
|
523 | |
|
|
524 | /* file descriptor info structure */ |
443 | typedef struct |
525 | typedef struct |
444 | { |
526 | { |
445 | WL head; |
527 | WL head; |
446 | unsigned char events; |
528 | unsigned char events; /* the events watched for */ |
|
|
529 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
|
|
530 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
447 | unsigned char reify; |
531 | unsigned char unused; |
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532 | #if EV_USE_EPOLL |
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|
533 | unsigned int egen; /* generation counter to counter epoll bugs */ |
|
|
534 | #endif |
448 | #if EV_SELECT_IS_WINSOCKET |
535 | #if EV_SELECT_IS_WINSOCKET |
449 | SOCKET handle; |
536 | SOCKET handle; |
450 | #endif |
537 | #endif |
451 | } ANFD; |
538 | } ANFD; |
452 | |
539 | |
|
|
540 | /* stores the pending event set for a given watcher */ |
453 | typedef struct |
541 | typedef struct |
454 | { |
542 | { |
455 | W w; |
543 | W w; |
456 | int events; |
544 | int events; /* the pending event set for the given watcher */ |
457 | } ANPENDING; |
545 | } ANPENDING; |
458 | |
546 | |
459 | #if EV_USE_INOTIFY |
547 | #if EV_USE_INOTIFY |
460 | /* hash table entry per inotify-id */ |
548 | /* hash table entry per inotify-id */ |
461 | typedef struct |
549 | typedef struct |
… | |
… | |
464 | } ANFS; |
552 | } ANFS; |
465 | #endif |
553 | #endif |
466 | |
554 | |
467 | /* Heap Entry */ |
555 | /* Heap Entry */ |
468 | #if EV_HEAP_CACHE_AT |
556 | #if EV_HEAP_CACHE_AT |
|
|
557 | /* a heap element */ |
469 | typedef struct { |
558 | typedef struct { |
470 | ev_tstamp at; |
559 | ev_tstamp at; |
471 | WT w; |
560 | WT w; |
472 | } ANHE; |
561 | } ANHE; |
473 | |
562 | |
474 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
563 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
475 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
564 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
476 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
565 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
477 | #else |
566 | #else |
|
|
567 | /* a heap element */ |
478 | typedef WT ANHE; |
568 | typedef WT ANHE; |
479 | |
569 | |
480 | #define ANHE_w(he) (he) |
570 | #define ANHE_w(he) (he) |
481 | #define ANHE_at(he) (he)->at |
571 | #define ANHE_at(he) (he)->at |
482 | #define ANHE_at_cache(he) |
572 | #define ANHE_at_cache(he) |
… | |
… | |
506 | |
596 | |
507 | static int ev_default_loop_ptr; |
597 | static int ev_default_loop_ptr; |
508 | |
598 | |
509 | #endif |
599 | #endif |
510 | |
600 | |
|
|
601 | #if EV_MINIMAL < 2 |
|
|
602 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
|
|
603 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
|
|
604 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
|
|
605 | #else |
|
|
606 | # define EV_RELEASE_CB (void)0 |
|
|
607 | # define EV_ACQUIRE_CB (void)0 |
|
|
608 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
|
|
609 | #endif |
|
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610 | |
|
|
611 | #define EVUNLOOP_RECURSE 0x80 |
|
|
612 | |
511 | /*****************************************************************************/ |
613 | /*****************************************************************************/ |
512 | |
614 | |
|
|
615 | #ifndef EV_HAVE_EV_TIME |
513 | ev_tstamp |
616 | ev_tstamp |
514 | ev_time (void) |
617 | ev_time (void) |
515 | { |
618 | { |
516 | #if EV_USE_REALTIME |
619 | #if EV_USE_REALTIME |
|
|
620 | if (expect_true (have_realtime)) |
|
|
621 | { |
517 | struct timespec ts; |
622 | struct timespec ts; |
518 | clock_gettime (CLOCK_REALTIME, &ts); |
623 | clock_gettime (CLOCK_REALTIME, &ts); |
519 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
624 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
520 | #else |
625 | } |
|
|
626 | #endif |
|
|
627 | |
521 | struct timeval tv; |
628 | struct timeval tv; |
522 | gettimeofday (&tv, 0); |
629 | gettimeofday (&tv, 0); |
523 | return tv.tv_sec + tv.tv_usec * 1e-6; |
630 | return tv.tv_sec + tv.tv_usec * 1e-6; |
524 | #endif |
|
|
525 | } |
631 | } |
|
|
632 | #endif |
526 | |
633 | |
527 | ev_tstamp inline_size |
634 | inline_size ev_tstamp |
528 | get_clock (void) |
635 | get_clock (void) |
529 | { |
636 | { |
530 | #if EV_USE_MONOTONIC |
637 | #if EV_USE_MONOTONIC |
531 | if (expect_true (have_monotonic)) |
638 | if (expect_true (have_monotonic)) |
532 | { |
639 | { |
… | |
… | |
566 | |
673 | |
567 | tv.tv_sec = (time_t)delay; |
674 | tv.tv_sec = (time_t)delay; |
568 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
675 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
569 | |
676 | |
570 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
677 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
571 | /* somehting nto guaranteed by newer posix versions, but guaranteed */ |
678 | /* something not guaranteed by newer posix versions, but guaranteed */ |
572 | /* by older ones */ |
679 | /* by older ones */ |
573 | select (0, 0, 0, 0, &tv); |
680 | select (0, 0, 0, 0, &tv); |
574 | #endif |
681 | #endif |
575 | } |
682 | } |
576 | } |
683 | } |
577 | |
684 | |
578 | /*****************************************************************************/ |
685 | /*****************************************************************************/ |
579 | |
686 | |
580 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
687 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
581 | |
688 | |
582 | int inline_size |
689 | /* find a suitable new size for the given array, */ |
|
|
690 | /* hopefully by rounding to a ncie-to-malloc size */ |
|
|
691 | inline_size int |
583 | array_nextsize (int elem, int cur, int cnt) |
692 | array_nextsize (int elem, int cur, int cnt) |
584 | { |
693 | { |
585 | int ncur = cur + 1; |
694 | int ncur = cur + 1; |
586 | |
695 | |
587 | do |
696 | do |
… | |
… | |
604 | array_realloc (int elem, void *base, int *cur, int cnt) |
713 | array_realloc (int elem, void *base, int *cur, int cnt) |
605 | { |
714 | { |
606 | *cur = array_nextsize (elem, *cur, cnt); |
715 | *cur = array_nextsize (elem, *cur, cnt); |
607 | return ev_realloc (base, elem * *cur); |
716 | return ev_realloc (base, elem * *cur); |
608 | } |
717 | } |
|
|
718 | |
|
|
719 | #define array_init_zero(base,count) \ |
|
|
720 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
609 | |
721 | |
610 | #define array_needsize(type,base,cur,cnt,init) \ |
722 | #define array_needsize(type,base,cur,cnt,init) \ |
611 | if (expect_false ((cnt) > (cur))) \ |
723 | if (expect_false ((cnt) > (cur))) \ |
612 | { \ |
724 | { \ |
613 | int ocur_ = (cur); \ |
725 | int ocur_ = (cur); \ |
… | |
… | |
625 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
737 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
626 | } |
738 | } |
627 | #endif |
739 | #endif |
628 | |
740 | |
629 | #define array_free(stem, idx) \ |
741 | #define array_free(stem, idx) \ |
630 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
742 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
631 | |
743 | |
632 | /*****************************************************************************/ |
744 | /*****************************************************************************/ |
|
|
745 | |
|
|
746 | /* dummy callback for pending events */ |
|
|
747 | static void noinline |
|
|
748 | pendingcb (EV_P_ ev_prepare *w, int revents) |
|
|
749 | { |
|
|
750 | } |
633 | |
751 | |
634 | void noinline |
752 | void noinline |
635 | ev_feed_event (EV_P_ void *w, int revents) |
753 | ev_feed_event (EV_P_ void *w, int revents) |
636 | { |
754 | { |
637 | W w_ = (W)w; |
755 | W w_ = (W)w; |
… | |
… | |
646 | pendings [pri][w_->pending - 1].w = w_; |
764 | pendings [pri][w_->pending - 1].w = w_; |
647 | pendings [pri][w_->pending - 1].events = revents; |
765 | pendings [pri][w_->pending - 1].events = revents; |
648 | } |
766 | } |
649 | } |
767 | } |
650 | |
768 | |
651 | void inline_speed |
769 | inline_speed void |
|
|
770 | feed_reverse (EV_P_ W w) |
|
|
771 | { |
|
|
772 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
|
|
773 | rfeeds [rfeedcnt++] = w; |
|
|
774 | } |
|
|
775 | |
|
|
776 | inline_size void |
|
|
777 | feed_reverse_done (EV_P_ int revents) |
|
|
778 | { |
|
|
779 | do |
|
|
780 | ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents); |
|
|
781 | while (rfeedcnt); |
|
|
782 | } |
|
|
783 | |
|
|
784 | inline_speed void |
652 | queue_events (EV_P_ W *events, int eventcnt, int type) |
785 | queue_events (EV_P_ W *events, int eventcnt, int type) |
653 | { |
786 | { |
654 | int i; |
787 | int i; |
655 | |
788 | |
656 | for (i = 0; i < eventcnt; ++i) |
789 | for (i = 0; i < eventcnt; ++i) |
657 | ev_feed_event (EV_A_ events [i], type); |
790 | ev_feed_event (EV_A_ events [i], type); |
658 | } |
791 | } |
659 | |
792 | |
660 | /*****************************************************************************/ |
793 | /*****************************************************************************/ |
661 | |
794 | |
662 | void inline_size |
795 | inline_speed void |
663 | anfds_init (ANFD *base, int count) |
|
|
664 | { |
|
|
665 | while (count--) |
|
|
666 | { |
|
|
667 | base->head = 0; |
|
|
668 | base->events = EV_NONE; |
|
|
669 | base->reify = 0; |
|
|
670 | |
|
|
671 | ++base; |
|
|
672 | } |
|
|
673 | } |
|
|
674 | |
|
|
675 | void inline_speed |
|
|
676 | fd_event (EV_P_ int fd, int revents) |
796 | fd_event_nc (EV_P_ int fd, int revents) |
677 | { |
797 | { |
678 | ANFD *anfd = anfds + fd; |
798 | ANFD *anfd = anfds + fd; |
679 | ev_io *w; |
799 | ev_io *w; |
680 | |
800 | |
681 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
801 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
685 | if (ev) |
805 | if (ev) |
686 | ev_feed_event (EV_A_ (W)w, ev); |
806 | ev_feed_event (EV_A_ (W)w, ev); |
687 | } |
807 | } |
688 | } |
808 | } |
689 | |
809 | |
|
|
810 | /* do not submit kernel events for fds that have reify set */ |
|
|
811 | /* because that means they changed while we were polling for new events */ |
|
|
812 | inline_speed void |
|
|
813 | fd_event (EV_P_ int fd, int revents) |
|
|
814 | { |
|
|
815 | ANFD *anfd = anfds + fd; |
|
|
816 | |
|
|
817 | if (expect_true (!anfd->reify)) |
|
|
818 | fd_event_nc (EV_A_ fd, revents); |
|
|
819 | } |
|
|
820 | |
690 | void |
821 | void |
691 | ev_feed_fd_event (EV_P_ int fd, int revents) |
822 | ev_feed_fd_event (EV_P_ int fd, int revents) |
692 | { |
823 | { |
693 | if (fd >= 0 && fd < anfdmax) |
824 | if (fd >= 0 && fd < anfdmax) |
694 | fd_event (EV_A_ fd, revents); |
825 | fd_event_nc (EV_A_ fd, revents); |
695 | } |
826 | } |
696 | |
827 | |
697 | void inline_size |
828 | /* make sure the external fd watch events are in-sync */ |
|
|
829 | /* with the kernel/libev internal state */ |
|
|
830 | inline_size void |
698 | fd_reify (EV_P) |
831 | fd_reify (EV_P) |
699 | { |
832 | { |
700 | int i; |
833 | int i; |
701 | |
834 | |
702 | for (i = 0; i < fdchangecnt; ++i) |
835 | for (i = 0; i < fdchangecnt; ++i) |
… | |
… | |
717 | #ifdef EV_FD_TO_WIN32_HANDLE |
850 | #ifdef EV_FD_TO_WIN32_HANDLE |
718 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
851 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
719 | #else |
852 | #else |
720 | anfd->handle = _get_osfhandle (fd); |
853 | anfd->handle = _get_osfhandle (fd); |
721 | #endif |
854 | #endif |
722 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
855 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
723 | } |
856 | } |
724 | #endif |
857 | #endif |
725 | |
858 | |
726 | { |
859 | { |
727 | unsigned char o_events = anfd->events; |
860 | unsigned char o_events = anfd->events; |
728 | unsigned char o_reify = anfd->reify; |
861 | unsigned char o_reify = anfd->reify; |
729 | |
862 | |
730 | anfd->reify = 0; |
863 | anfd->reify = 0; |
731 | anfd->events = events; |
864 | anfd->events = events; |
732 | |
865 | |
733 | if (o_events != events || o_reify & EV_IOFDSET) |
866 | if (o_events != events || o_reify & EV__IOFDSET) |
734 | backend_modify (EV_A_ fd, o_events, events); |
867 | backend_modify (EV_A_ fd, o_events, events); |
735 | } |
868 | } |
736 | } |
869 | } |
737 | |
870 | |
738 | fdchangecnt = 0; |
871 | fdchangecnt = 0; |
739 | } |
872 | } |
740 | |
873 | |
741 | void inline_size |
874 | /* something about the given fd changed */ |
|
|
875 | inline_size void |
742 | fd_change (EV_P_ int fd, int flags) |
876 | fd_change (EV_P_ int fd, int flags) |
743 | { |
877 | { |
744 | unsigned char reify = anfds [fd].reify; |
878 | unsigned char reify = anfds [fd].reify; |
745 | anfds [fd].reify |= flags; |
879 | anfds [fd].reify |= flags; |
746 | |
880 | |
… | |
… | |
750 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
884 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
751 | fdchanges [fdchangecnt - 1] = fd; |
885 | fdchanges [fdchangecnt - 1] = fd; |
752 | } |
886 | } |
753 | } |
887 | } |
754 | |
888 | |
755 | void inline_speed |
889 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
|
|
890 | inline_speed void |
756 | fd_kill (EV_P_ int fd) |
891 | fd_kill (EV_P_ int fd) |
757 | { |
892 | { |
758 | ev_io *w; |
893 | ev_io *w; |
759 | |
894 | |
760 | while ((w = (ev_io *)anfds [fd].head)) |
895 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
762 | ev_io_stop (EV_A_ w); |
897 | ev_io_stop (EV_A_ w); |
763 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
898 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
764 | } |
899 | } |
765 | } |
900 | } |
766 | |
901 | |
767 | int inline_size |
902 | /* check whether the given fd is atcually valid, for error recovery */ |
|
|
903 | inline_size int |
768 | fd_valid (int fd) |
904 | fd_valid (int fd) |
769 | { |
905 | { |
770 | #ifdef _WIN32 |
906 | #ifdef _WIN32 |
771 | return _get_osfhandle (fd) != -1; |
907 | return _get_osfhandle (fd) != -1; |
772 | #else |
908 | #else |
… | |
… | |
808 | |
944 | |
809 | for (fd = 0; fd < anfdmax; ++fd) |
945 | for (fd = 0; fd < anfdmax; ++fd) |
810 | if (anfds [fd].events) |
946 | if (anfds [fd].events) |
811 | { |
947 | { |
812 | anfds [fd].events = 0; |
948 | anfds [fd].events = 0; |
|
|
949 | anfds [fd].emask = 0; |
813 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
950 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
814 | } |
951 | } |
815 | } |
952 | } |
816 | |
953 | |
817 | /*****************************************************************************/ |
954 | /*****************************************************************************/ |
818 | |
955 | |
… | |
… | |
834 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
971 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
835 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
972 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
836 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
973 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
837 | |
974 | |
838 | /* away from the root */ |
975 | /* away from the root */ |
839 | void inline_speed |
976 | inline_speed void |
840 | downheap (ANHE *heap, int N, int k) |
977 | downheap (ANHE *heap, int N, int k) |
841 | { |
978 | { |
842 | ANHE he = heap [k]; |
979 | ANHE he = heap [k]; |
843 | ANHE *E = heap + N + HEAP0; |
980 | ANHE *E = heap + N + HEAP0; |
844 | |
981 | |
… | |
… | |
884 | #define HEAP0 1 |
1021 | #define HEAP0 1 |
885 | #define HPARENT(k) ((k) >> 1) |
1022 | #define HPARENT(k) ((k) >> 1) |
886 | #define UPHEAP_DONE(p,k) (!(p)) |
1023 | #define UPHEAP_DONE(p,k) (!(p)) |
887 | |
1024 | |
888 | /* away from the root */ |
1025 | /* away from the root */ |
889 | void inline_speed |
1026 | inline_speed void |
890 | downheap (ANHE *heap, int N, int k) |
1027 | downheap (ANHE *heap, int N, int k) |
891 | { |
1028 | { |
892 | ANHE he = heap [k]; |
1029 | ANHE he = heap [k]; |
893 | |
1030 | |
894 | for (;;) |
1031 | for (;;) |
… | |
… | |
914 | ev_active (ANHE_w (he)) = k; |
1051 | ev_active (ANHE_w (he)) = k; |
915 | } |
1052 | } |
916 | #endif |
1053 | #endif |
917 | |
1054 | |
918 | /* towards the root */ |
1055 | /* towards the root */ |
919 | void inline_speed |
1056 | inline_speed void |
920 | upheap (ANHE *heap, int k) |
1057 | upheap (ANHE *heap, int k) |
921 | { |
1058 | { |
922 | ANHE he = heap [k]; |
1059 | ANHE he = heap [k]; |
923 | |
1060 | |
924 | for (;;) |
1061 | for (;;) |
… | |
… | |
935 | |
1072 | |
936 | heap [k] = he; |
1073 | heap [k] = he; |
937 | ev_active (ANHE_w (he)) = k; |
1074 | ev_active (ANHE_w (he)) = k; |
938 | } |
1075 | } |
939 | |
1076 | |
940 | void inline_size |
1077 | /* move an element suitably so it is in a correct place */ |
|
|
1078 | inline_size void |
941 | adjustheap (ANHE *heap, int N, int k) |
1079 | adjustheap (ANHE *heap, int N, int k) |
942 | { |
1080 | { |
943 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
1081 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
944 | upheap (heap, k); |
1082 | upheap (heap, k); |
945 | else |
1083 | else |
946 | downheap (heap, N, k); |
1084 | downheap (heap, N, k); |
947 | } |
1085 | } |
948 | |
1086 | |
949 | /* rebuild the heap: this function is used only once and executed rarely */ |
1087 | /* rebuild the heap: this function is used only once and executed rarely */ |
950 | void inline_size |
1088 | inline_size void |
951 | reheap (ANHE *heap, int N) |
1089 | reheap (ANHE *heap, int N) |
952 | { |
1090 | { |
953 | int i; |
1091 | int i; |
954 | |
1092 | |
955 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
1093 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
… | |
… | |
958 | upheap (heap, i + HEAP0); |
1096 | upheap (heap, i + HEAP0); |
959 | } |
1097 | } |
960 | |
1098 | |
961 | /*****************************************************************************/ |
1099 | /*****************************************************************************/ |
962 | |
1100 | |
|
|
1101 | /* associate signal watchers to a signal signal */ |
963 | typedef struct |
1102 | typedef struct |
964 | { |
1103 | { |
965 | WL head; |
1104 | WL head; |
966 | EV_ATOMIC_T gotsig; |
1105 | EV_ATOMIC_T gotsig; |
967 | } ANSIG; |
1106 | } ANSIG; |
… | |
… | |
969 | static ANSIG *signals; |
1108 | static ANSIG *signals; |
970 | static int signalmax; |
1109 | static int signalmax; |
971 | |
1110 | |
972 | static EV_ATOMIC_T gotsig; |
1111 | static EV_ATOMIC_T gotsig; |
973 | |
1112 | |
974 | void inline_size |
|
|
975 | signals_init (ANSIG *base, int count) |
|
|
976 | { |
|
|
977 | while (count--) |
|
|
978 | { |
|
|
979 | base->head = 0; |
|
|
980 | base->gotsig = 0; |
|
|
981 | |
|
|
982 | ++base; |
|
|
983 | } |
|
|
984 | } |
|
|
985 | |
|
|
986 | /*****************************************************************************/ |
1113 | /*****************************************************************************/ |
987 | |
1114 | |
988 | void inline_speed |
1115 | /* used to prepare libev internal fd's */ |
|
|
1116 | /* this is not fork-safe */ |
|
|
1117 | inline_speed void |
989 | fd_intern (int fd) |
1118 | fd_intern (int fd) |
990 | { |
1119 | { |
991 | #ifdef _WIN32 |
1120 | #ifdef _WIN32 |
992 | unsigned long arg = 1; |
1121 | unsigned long arg = 1; |
993 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
1122 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
… | |
… | |
998 | } |
1127 | } |
999 | |
1128 | |
1000 | static void noinline |
1129 | static void noinline |
1001 | evpipe_init (EV_P) |
1130 | evpipe_init (EV_P) |
1002 | { |
1131 | { |
1003 | if (!ev_is_active (&pipeev)) |
1132 | if (!ev_is_active (&pipe_w)) |
1004 | { |
1133 | { |
1005 | #if EV_USE_EVENTFD |
1134 | #if EV_USE_EVENTFD |
|
|
1135 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
|
|
1136 | if (evfd < 0 && errno == EINVAL) |
1006 | if ((evfd = eventfd (0, 0)) >= 0) |
1137 | evfd = eventfd (0, 0); |
|
|
1138 | |
|
|
1139 | if (evfd >= 0) |
1007 | { |
1140 | { |
1008 | evpipe [0] = -1; |
1141 | evpipe [0] = -1; |
1009 | fd_intern (evfd); |
1142 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
1010 | ev_io_set (&pipeev, evfd, EV_READ); |
1143 | ev_io_set (&pipe_w, evfd, EV_READ); |
1011 | } |
1144 | } |
1012 | else |
1145 | else |
1013 | #endif |
1146 | #endif |
1014 | { |
1147 | { |
1015 | while (pipe (evpipe)) |
1148 | while (pipe (evpipe)) |
1016 | syserr ("(libev) error creating signal/async pipe"); |
1149 | ev_syserr ("(libev) error creating signal/async pipe"); |
1017 | |
1150 | |
1018 | fd_intern (evpipe [0]); |
1151 | fd_intern (evpipe [0]); |
1019 | fd_intern (evpipe [1]); |
1152 | fd_intern (evpipe [1]); |
1020 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
1153 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
1021 | } |
1154 | } |
1022 | |
1155 | |
1023 | ev_io_start (EV_A_ &pipeev); |
1156 | ev_io_start (EV_A_ &pipe_w); |
1024 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1157 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1025 | } |
1158 | } |
1026 | } |
1159 | } |
1027 | |
1160 | |
1028 | void inline_size |
1161 | inline_size void |
1029 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1162 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1030 | { |
1163 | { |
1031 | if (!*flag) |
1164 | if (!*flag) |
1032 | { |
1165 | { |
1033 | int old_errno = errno; /* save errno because write might clobber it */ |
1166 | int old_errno = errno; /* save errno because write might clobber it */ |
… | |
… | |
1046 | |
1179 | |
1047 | errno = old_errno; |
1180 | errno = old_errno; |
1048 | } |
1181 | } |
1049 | } |
1182 | } |
1050 | |
1183 | |
|
|
1184 | /* called whenever the libev signal pipe */ |
|
|
1185 | /* got some events (signal, async) */ |
1051 | static void |
1186 | static void |
1052 | pipecb (EV_P_ ev_io *iow, int revents) |
1187 | pipecb (EV_P_ ev_io *iow, int revents) |
1053 | { |
1188 | { |
1054 | #if EV_USE_EVENTFD |
1189 | #if EV_USE_EVENTFD |
1055 | if (evfd >= 0) |
1190 | if (evfd >= 0) |
… | |
… | |
1111 | ev_feed_signal_event (EV_P_ int signum) |
1246 | ev_feed_signal_event (EV_P_ int signum) |
1112 | { |
1247 | { |
1113 | WL w; |
1248 | WL w; |
1114 | |
1249 | |
1115 | #if EV_MULTIPLICITY |
1250 | #if EV_MULTIPLICITY |
1116 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1251 | assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1117 | #endif |
1252 | #endif |
1118 | |
1253 | |
1119 | --signum; |
1254 | --signum; |
1120 | |
1255 | |
1121 | if (signum < 0 || signum >= signalmax) |
1256 | if (signum < 0 || signum >= signalmax) |
… | |
… | |
1125 | |
1260 | |
1126 | for (w = signals [signum].head; w; w = w->next) |
1261 | for (w = signals [signum].head; w; w = w->next) |
1127 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1262 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1128 | } |
1263 | } |
1129 | |
1264 | |
|
|
1265 | #if EV_USE_SIGNALFD |
|
|
1266 | static void |
|
|
1267 | sigfdcb (EV_P_ ev_io *iow, int revents) |
|
|
1268 | { |
|
|
1269 | struct signalfd_siginfo si[4], *sip; |
|
|
1270 | |
|
|
1271 | for (;;) |
|
|
1272 | { |
|
|
1273 | ssize_t res = read (sigfd, si, sizeof (si)); |
|
|
1274 | |
|
|
1275 | /* not ISO-C, as res might be -1, but works with SuS */ |
|
|
1276 | for (sip = si; (char *)sip < (char *)si + res; ++sip) |
|
|
1277 | ev_feed_signal_event (EV_A_ sip->ssi_signo); |
|
|
1278 | |
|
|
1279 | if (res < (ssize_t)sizeof (si)) |
|
|
1280 | break; |
|
|
1281 | } |
|
|
1282 | } |
|
|
1283 | #endif |
|
|
1284 | |
1130 | /*****************************************************************************/ |
1285 | /*****************************************************************************/ |
1131 | |
1286 | |
1132 | static WL childs [EV_PID_HASHSIZE]; |
1287 | static WL childs [EV_PID_HASHSIZE]; |
1133 | |
1288 | |
1134 | #ifndef _WIN32 |
1289 | #ifndef _WIN32 |
… | |
… | |
1137 | |
1292 | |
1138 | #ifndef WIFCONTINUED |
1293 | #ifndef WIFCONTINUED |
1139 | # define WIFCONTINUED(status) 0 |
1294 | # define WIFCONTINUED(status) 0 |
1140 | #endif |
1295 | #endif |
1141 | |
1296 | |
1142 | void inline_speed |
1297 | /* handle a single child status event */ |
|
|
1298 | inline_speed void |
1143 | child_reap (EV_P_ int chain, int pid, int status) |
1299 | child_reap (EV_P_ int chain, int pid, int status) |
1144 | { |
1300 | { |
1145 | ev_child *w; |
1301 | ev_child *w; |
1146 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1302 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1147 | |
1303 | |
… | |
… | |
1160 | |
1316 | |
1161 | #ifndef WCONTINUED |
1317 | #ifndef WCONTINUED |
1162 | # define WCONTINUED 0 |
1318 | # define WCONTINUED 0 |
1163 | #endif |
1319 | #endif |
1164 | |
1320 | |
|
|
1321 | /* called on sigchld etc., calls waitpid */ |
1165 | static void |
1322 | static void |
1166 | childcb (EV_P_ ev_signal *sw, int revents) |
1323 | childcb (EV_P_ ev_signal *sw, int revents) |
1167 | { |
1324 | { |
1168 | int pid, status; |
1325 | int pid, status; |
1169 | |
1326 | |
… | |
… | |
1250 | /* kqueue is borked on everything but netbsd apparently */ |
1407 | /* kqueue is borked on everything but netbsd apparently */ |
1251 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1408 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1252 | flags &= ~EVBACKEND_KQUEUE; |
1409 | flags &= ~EVBACKEND_KQUEUE; |
1253 | #endif |
1410 | #endif |
1254 | #ifdef __APPLE__ |
1411 | #ifdef __APPLE__ |
1255 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
1412 | /* only select works correctly on that "unix-certified" platform */ |
1256 | flags &= ~EVBACKEND_POLL; |
1413 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
|
|
1414 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
1257 | #endif |
1415 | #endif |
1258 | |
1416 | |
1259 | return flags; |
1417 | return flags; |
1260 | } |
1418 | } |
1261 | |
1419 | |
… | |
… | |
1275 | ev_backend (EV_P) |
1433 | ev_backend (EV_P) |
1276 | { |
1434 | { |
1277 | return backend; |
1435 | return backend; |
1278 | } |
1436 | } |
1279 | |
1437 | |
|
|
1438 | #if EV_MINIMAL < 2 |
1280 | unsigned int |
1439 | unsigned int |
1281 | ev_loop_count (EV_P) |
1440 | ev_loop_count (EV_P) |
1282 | { |
1441 | { |
1283 | return loop_count; |
1442 | return loop_count; |
1284 | } |
1443 | } |
1285 | |
1444 | |
|
|
1445 | unsigned int |
|
|
1446 | ev_loop_depth (EV_P) |
|
|
1447 | { |
|
|
1448 | return loop_depth; |
|
|
1449 | } |
|
|
1450 | |
1286 | void |
1451 | void |
1287 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1452 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1288 | { |
1453 | { |
1289 | io_blocktime = interval; |
1454 | io_blocktime = interval; |
1290 | } |
1455 | } |
… | |
… | |
1293 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1458 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1294 | { |
1459 | { |
1295 | timeout_blocktime = interval; |
1460 | timeout_blocktime = interval; |
1296 | } |
1461 | } |
1297 | |
1462 | |
|
|
1463 | void |
|
|
1464 | ev_set_userdata (EV_P_ void *data) |
|
|
1465 | { |
|
|
1466 | userdata = data; |
|
|
1467 | } |
|
|
1468 | |
|
|
1469 | void * |
|
|
1470 | ev_userdata (EV_P) |
|
|
1471 | { |
|
|
1472 | return userdata; |
|
|
1473 | } |
|
|
1474 | |
|
|
1475 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
|
|
1476 | { |
|
|
1477 | invoke_cb = invoke_pending_cb; |
|
|
1478 | } |
|
|
1479 | |
|
|
1480 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
|
|
1481 | { |
|
|
1482 | release_cb = release; |
|
|
1483 | acquire_cb = acquire; |
|
|
1484 | } |
|
|
1485 | #endif |
|
|
1486 | |
|
|
1487 | /* initialise a loop structure, must be zero-initialised */ |
1298 | static void noinline |
1488 | static void noinline |
1299 | loop_init (EV_P_ unsigned int flags) |
1489 | loop_init (EV_P_ unsigned int flags) |
1300 | { |
1490 | { |
1301 | if (!backend) |
1491 | if (!backend) |
1302 | { |
1492 | { |
|
|
1493 | #if EV_USE_REALTIME |
|
|
1494 | if (!have_realtime) |
|
|
1495 | { |
|
|
1496 | struct timespec ts; |
|
|
1497 | |
|
|
1498 | if (!clock_gettime (CLOCK_REALTIME, &ts)) |
|
|
1499 | have_realtime = 1; |
|
|
1500 | } |
|
|
1501 | #endif |
|
|
1502 | |
1303 | #if EV_USE_MONOTONIC |
1503 | #if EV_USE_MONOTONIC |
|
|
1504 | if (!have_monotonic) |
1304 | { |
1505 | { |
1305 | struct timespec ts; |
1506 | struct timespec ts; |
|
|
1507 | |
1306 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1508 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1307 | have_monotonic = 1; |
1509 | have_monotonic = 1; |
1308 | } |
1510 | } |
1309 | #endif |
1511 | #endif |
1310 | |
1512 | |
1311 | ev_rt_now = ev_time (); |
1513 | ev_rt_now = ev_time (); |
1312 | mn_now = get_clock (); |
1514 | mn_now = get_clock (); |
1313 | now_floor = mn_now; |
1515 | now_floor = mn_now; |
1314 | rtmn_diff = ev_rt_now - mn_now; |
1516 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1517 | #if EV_MINIMAL < 2 |
|
|
1518 | invoke_cb = ev_invoke_pending; |
|
|
1519 | #endif |
1315 | |
1520 | |
1316 | io_blocktime = 0.; |
1521 | io_blocktime = 0.; |
1317 | timeout_blocktime = 0.; |
1522 | timeout_blocktime = 0.; |
1318 | backend = 0; |
1523 | backend = 0; |
1319 | backend_fd = -1; |
1524 | backend_fd = -1; |
1320 | gotasync = 0; |
1525 | gotasync = 0; |
1321 | #if EV_USE_INOTIFY |
1526 | #if EV_USE_INOTIFY |
1322 | fs_fd = -2; |
1527 | fs_fd = -2; |
1323 | #endif |
1528 | #endif |
|
|
1529 | #if EV_USE_SIGNALFD |
|
|
1530 | sigfd = -2; |
|
|
1531 | #endif |
1324 | |
1532 | |
1325 | /* pid check not overridable via env */ |
1533 | /* pid check not overridable via env */ |
1326 | #ifndef _WIN32 |
1534 | #ifndef _WIN32 |
1327 | if (flags & EVFLAG_FORKCHECK) |
1535 | if (flags & EVFLAG_FORKCHECK) |
1328 | curpid = getpid (); |
1536 | curpid = getpid (); |
… | |
… | |
1350 | #endif |
1558 | #endif |
1351 | #if EV_USE_SELECT |
1559 | #if EV_USE_SELECT |
1352 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1560 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1353 | #endif |
1561 | #endif |
1354 | |
1562 | |
|
|
1563 | ev_prepare_init (&pending_w, pendingcb); |
|
|
1564 | |
1355 | ev_init (&pipeev, pipecb); |
1565 | ev_init (&pipe_w, pipecb); |
1356 | ev_set_priority (&pipeev, EV_MAXPRI); |
1566 | ev_set_priority (&pipe_w, EV_MAXPRI); |
1357 | } |
1567 | } |
1358 | } |
1568 | } |
1359 | |
1569 | |
|
|
1570 | /* free up a loop structure */ |
1360 | static void noinline |
1571 | static void noinline |
1361 | loop_destroy (EV_P) |
1572 | loop_destroy (EV_P) |
1362 | { |
1573 | { |
1363 | int i; |
1574 | int i; |
1364 | |
1575 | |
1365 | if (ev_is_active (&pipeev)) |
1576 | if (ev_is_active (&pipe_w)) |
1366 | { |
1577 | { |
1367 | ev_ref (EV_A); /* signal watcher */ |
1578 | /*ev_ref (EV_A);*/ |
1368 | ev_io_stop (EV_A_ &pipeev); |
1579 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1369 | |
1580 | |
1370 | #if EV_USE_EVENTFD |
1581 | #if EV_USE_EVENTFD |
1371 | if (evfd >= 0) |
1582 | if (evfd >= 0) |
1372 | close (evfd); |
1583 | close (evfd); |
1373 | #endif |
1584 | #endif |
… | |
… | |
1377 | close (evpipe [0]); |
1588 | close (evpipe [0]); |
1378 | close (evpipe [1]); |
1589 | close (evpipe [1]); |
1379 | } |
1590 | } |
1380 | } |
1591 | } |
1381 | |
1592 | |
|
|
1593 | #if EV_USE_SIGNALFD |
|
|
1594 | if (ev_is_active (&sigfd_w)) |
|
|
1595 | { |
|
|
1596 | /*ev_ref (EV_A);*/ |
|
|
1597 | /*ev_io_stop (EV_A_ &sigfd_w);*/ |
|
|
1598 | |
|
|
1599 | close (sigfd); |
|
|
1600 | } |
|
|
1601 | #endif |
|
|
1602 | |
1382 | #if EV_USE_INOTIFY |
1603 | #if EV_USE_INOTIFY |
1383 | if (fs_fd >= 0) |
1604 | if (fs_fd >= 0) |
1384 | close (fs_fd); |
1605 | close (fs_fd); |
1385 | #endif |
1606 | #endif |
1386 | |
1607 | |
… | |
… | |
1412 | } |
1633 | } |
1413 | |
1634 | |
1414 | ev_free (anfds); anfdmax = 0; |
1635 | ev_free (anfds); anfdmax = 0; |
1415 | |
1636 | |
1416 | /* have to use the microsoft-never-gets-it-right macro */ |
1637 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
1638 | array_free (rfeed, EMPTY); |
1417 | array_free (fdchange, EMPTY); |
1639 | array_free (fdchange, EMPTY); |
1418 | array_free (timer, EMPTY); |
1640 | array_free (timer, EMPTY); |
1419 | #if EV_PERIODIC_ENABLE |
1641 | #if EV_PERIODIC_ENABLE |
1420 | array_free (periodic, EMPTY); |
1642 | array_free (periodic, EMPTY); |
1421 | #endif |
1643 | #endif |
… | |
… | |
1430 | |
1652 | |
1431 | backend = 0; |
1653 | backend = 0; |
1432 | } |
1654 | } |
1433 | |
1655 | |
1434 | #if EV_USE_INOTIFY |
1656 | #if EV_USE_INOTIFY |
1435 | void inline_size infy_fork (EV_P); |
1657 | inline_size void infy_fork (EV_P); |
1436 | #endif |
1658 | #endif |
1437 | |
1659 | |
1438 | void inline_size |
1660 | inline_size void |
1439 | loop_fork (EV_P) |
1661 | loop_fork (EV_P) |
1440 | { |
1662 | { |
1441 | #if EV_USE_PORT |
1663 | #if EV_USE_PORT |
1442 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1664 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1443 | #endif |
1665 | #endif |
… | |
… | |
1449 | #endif |
1671 | #endif |
1450 | #if EV_USE_INOTIFY |
1672 | #if EV_USE_INOTIFY |
1451 | infy_fork (EV_A); |
1673 | infy_fork (EV_A); |
1452 | #endif |
1674 | #endif |
1453 | |
1675 | |
1454 | if (ev_is_active (&pipeev)) |
1676 | if (ev_is_active (&pipe_w)) |
1455 | { |
1677 | { |
1456 | /* this "locks" the handlers against writing to the pipe */ |
1678 | /* this "locks" the handlers against writing to the pipe */ |
1457 | /* while we modify the fd vars */ |
1679 | /* while we modify the fd vars */ |
1458 | gotsig = 1; |
1680 | gotsig = 1; |
1459 | #if EV_ASYNC_ENABLE |
1681 | #if EV_ASYNC_ENABLE |
1460 | gotasync = 1; |
1682 | gotasync = 1; |
1461 | #endif |
1683 | #endif |
1462 | |
1684 | |
1463 | ev_ref (EV_A); |
1685 | ev_ref (EV_A); |
1464 | ev_io_stop (EV_A_ &pipeev); |
1686 | ev_io_stop (EV_A_ &pipe_w); |
1465 | |
1687 | |
1466 | #if EV_USE_EVENTFD |
1688 | #if EV_USE_EVENTFD |
1467 | if (evfd >= 0) |
1689 | if (evfd >= 0) |
1468 | close (evfd); |
1690 | close (evfd); |
1469 | #endif |
1691 | #endif |
… | |
… | |
1474 | close (evpipe [1]); |
1696 | close (evpipe [1]); |
1475 | } |
1697 | } |
1476 | |
1698 | |
1477 | evpipe_init (EV_A); |
1699 | evpipe_init (EV_A); |
1478 | /* now iterate over everything, in case we missed something */ |
1700 | /* now iterate over everything, in case we missed something */ |
1479 | pipecb (EV_A_ &pipeev, EV_READ); |
1701 | pipecb (EV_A_ &pipe_w, EV_READ); |
1480 | } |
1702 | } |
1481 | |
1703 | |
1482 | postfork = 0; |
1704 | postfork = 0; |
1483 | } |
1705 | } |
1484 | |
1706 | |
… | |
… | |
1488 | ev_loop_new (unsigned int flags) |
1710 | ev_loop_new (unsigned int flags) |
1489 | { |
1711 | { |
1490 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1712 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1491 | |
1713 | |
1492 | memset (loop, 0, sizeof (struct ev_loop)); |
1714 | memset (loop, 0, sizeof (struct ev_loop)); |
1493 | |
|
|
1494 | loop_init (EV_A_ flags); |
1715 | loop_init (EV_A_ flags); |
1495 | |
1716 | |
1496 | if (ev_backend (EV_A)) |
1717 | if (ev_backend (EV_A)) |
1497 | return loop; |
1718 | return loop; |
1498 | |
1719 | |
… | |
… | |
1509 | void |
1730 | void |
1510 | ev_loop_fork (EV_P) |
1731 | ev_loop_fork (EV_P) |
1511 | { |
1732 | { |
1512 | postfork = 1; /* must be in line with ev_default_fork */ |
1733 | postfork = 1; /* must be in line with ev_default_fork */ |
1513 | } |
1734 | } |
|
|
1735 | #endif /* multiplicity */ |
1514 | |
1736 | |
1515 | #if EV_VERIFY |
1737 | #if EV_VERIFY |
1516 | static void noinline |
1738 | static void noinline |
1517 | verify_watcher (EV_P_ W w) |
1739 | verify_watcher (EV_P_ W w) |
1518 | { |
1740 | { |
1519 | assert (("watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
1741 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
1520 | |
1742 | |
1521 | if (w->pending) |
1743 | if (w->pending) |
1522 | assert (("pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
1744 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
1523 | } |
1745 | } |
1524 | |
1746 | |
1525 | static void noinline |
1747 | static void noinline |
1526 | verify_heap (EV_P_ ANHE *heap, int N) |
1748 | verify_heap (EV_P_ ANHE *heap, int N) |
1527 | { |
1749 | { |
1528 | int i; |
1750 | int i; |
1529 | |
1751 | |
1530 | for (i = HEAP0; i < N + HEAP0; ++i) |
1752 | for (i = HEAP0; i < N + HEAP0; ++i) |
1531 | { |
1753 | { |
1532 | assert (("active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
1754 | assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
1533 | assert (("heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
1755 | assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
1534 | assert (("heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
1756 | assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
1535 | |
1757 | |
1536 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
1758 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
1537 | } |
1759 | } |
1538 | } |
1760 | } |
1539 | |
1761 | |
1540 | static void noinline |
1762 | static void noinline |
1541 | array_verify (EV_P_ W *ws, int cnt) |
1763 | array_verify (EV_P_ W *ws, int cnt) |
1542 | { |
1764 | { |
1543 | while (cnt--) |
1765 | while (cnt--) |
1544 | { |
1766 | { |
1545 | assert (("active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
1767 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
1546 | verify_watcher (EV_A_ ws [cnt]); |
1768 | verify_watcher (EV_A_ ws [cnt]); |
1547 | } |
1769 | } |
1548 | } |
1770 | } |
1549 | #endif |
1771 | #endif |
1550 | |
1772 | |
|
|
1773 | #if EV_MINIMAL < 2 |
1551 | void |
1774 | void |
1552 | ev_loop_verify (EV_P) |
1775 | ev_loop_verify (EV_P) |
1553 | { |
1776 | { |
1554 | #if EV_VERIFY |
1777 | #if EV_VERIFY |
1555 | int i; |
1778 | int i; |
… | |
… | |
1557 | |
1780 | |
1558 | assert (activecnt >= -1); |
1781 | assert (activecnt >= -1); |
1559 | |
1782 | |
1560 | assert (fdchangemax >= fdchangecnt); |
1783 | assert (fdchangemax >= fdchangecnt); |
1561 | for (i = 0; i < fdchangecnt; ++i) |
1784 | for (i = 0; i < fdchangecnt; ++i) |
1562 | assert (("negative fd in fdchanges", fdchanges [i] >= 0)); |
1785 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
1563 | |
1786 | |
1564 | assert (anfdmax >= 0); |
1787 | assert (anfdmax >= 0); |
1565 | for (i = 0; i < anfdmax; ++i) |
1788 | for (i = 0; i < anfdmax; ++i) |
1566 | for (w = anfds [i].head; w; w = w->next) |
1789 | for (w = anfds [i].head; w; w = w->next) |
1567 | { |
1790 | { |
1568 | verify_watcher (EV_A_ (W)w); |
1791 | verify_watcher (EV_A_ (W)w); |
1569 | assert (("inactive fd watcher on anfd list", ev_active (w) == 1)); |
1792 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
1570 | assert (("fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
1793 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
1571 | } |
1794 | } |
1572 | |
1795 | |
1573 | assert (timermax >= timercnt); |
1796 | assert (timermax >= timercnt); |
1574 | verify_heap (EV_A_ timers, timercnt); |
1797 | verify_heap (EV_A_ timers, timercnt); |
1575 | |
1798 | |
… | |
… | |
1608 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1831 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1609 | for (signum = signalmax; signum--; ) if (signals [signum].gotsig) |
1832 | for (signum = signalmax; signum--; ) if (signals [signum].gotsig) |
1610 | # endif |
1833 | # endif |
1611 | #endif |
1834 | #endif |
1612 | } |
1835 | } |
1613 | |
1836 | #endif |
1614 | #endif /* multiplicity */ |
|
|
1615 | |
1837 | |
1616 | #if EV_MULTIPLICITY |
1838 | #if EV_MULTIPLICITY |
1617 | struct ev_loop * |
1839 | struct ev_loop * |
1618 | ev_default_loop_init (unsigned int flags) |
1840 | ev_default_loop_init (unsigned int flags) |
1619 | #else |
1841 | #else |
… | |
… | |
1652 | { |
1874 | { |
1653 | #if EV_MULTIPLICITY |
1875 | #if EV_MULTIPLICITY |
1654 | struct ev_loop *loop = ev_default_loop_ptr; |
1876 | struct ev_loop *loop = ev_default_loop_ptr; |
1655 | #endif |
1877 | #endif |
1656 | |
1878 | |
|
|
1879 | ev_default_loop_ptr = 0; |
|
|
1880 | |
1657 | #ifndef _WIN32 |
1881 | #ifndef _WIN32 |
1658 | ev_ref (EV_A); /* child watcher */ |
1882 | ev_ref (EV_A); /* child watcher */ |
1659 | ev_signal_stop (EV_A_ &childev); |
1883 | ev_signal_stop (EV_A_ &childev); |
1660 | #endif |
1884 | #endif |
1661 | |
1885 | |
… | |
… | |
1667 | { |
1891 | { |
1668 | #if EV_MULTIPLICITY |
1892 | #if EV_MULTIPLICITY |
1669 | struct ev_loop *loop = ev_default_loop_ptr; |
1893 | struct ev_loop *loop = ev_default_loop_ptr; |
1670 | #endif |
1894 | #endif |
1671 | |
1895 | |
1672 | if (backend) |
|
|
1673 | postfork = 1; /* must be in line with ev_loop_fork */ |
1896 | postfork = 1; /* must be in line with ev_loop_fork */ |
1674 | } |
1897 | } |
1675 | |
1898 | |
1676 | /*****************************************************************************/ |
1899 | /*****************************************************************************/ |
1677 | |
1900 | |
1678 | void |
1901 | void |
1679 | ev_invoke (EV_P_ void *w, int revents) |
1902 | ev_invoke (EV_P_ void *w, int revents) |
1680 | { |
1903 | { |
1681 | EV_CB_INVOKE ((W)w, revents); |
1904 | EV_CB_INVOKE ((W)w, revents); |
1682 | } |
1905 | } |
1683 | |
1906 | |
1684 | void inline_speed |
1907 | unsigned int |
1685 | call_pending (EV_P) |
1908 | ev_pending_count (EV_P) |
|
|
1909 | { |
|
|
1910 | int pri; |
|
|
1911 | unsigned int count = 0; |
|
|
1912 | |
|
|
1913 | for (pri = NUMPRI; pri--; ) |
|
|
1914 | count += pendingcnt [pri]; |
|
|
1915 | |
|
|
1916 | return count; |
|
|
1917 | } |
|
|
1918 | |
|
|
1919 | void noinline |
|
|
1920 | ev_invoke_pending (EV_P) |
1686 | { |
1921 | { |
1687 | int pri; |
1922 | int pri; |
1688 | |
1923 | |
1689 | for (pri = NUMPRI; pri--; ) |
1924 | for (pri = NUMPRI; pri--; ) |
1690 | while (pendingcnt [pri]) |
1925 | while (pendingcnt [pri]) |
1691 | { |
1926 | { |
1692 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1927 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1693 | |
1928 | |
1694 | if (expect_true (p->w)) |
|
|
1695 | { |
|
|
1696 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
1929 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
|
|
1930 | /* ^ this is no longer true, as pending_w could be here */ |
1697 | |
1931 | |
1698 | p->w->pending = 0; |
1932 | p->w->pending = 0; |
1699 | EV_CB_INVOKE (p->w, p->events); |
1933 | EV_CB_INVOKE (p->w, p->events); |
1700 | EV_FREQUENT_CHECK; |
1934 | EV_FREQUENT_CHECK; |
1701 | } |
|
|
1702 | } |
1935 | } |
1703 | } |
1936 | } |
1704 | |
1937 | |
1705 | #if EV_IDLE_ENABLE |
1938 | #if EV_IDLE_ENABLE |
1706 | void inline_size |
1939 | /* make idle watchers pending. this handles the "call-idle */ |
|
|
1940 | /* only when higher priorities are idle" logic */ |
|
|
1941 | inline_size void |
1707 | idle_reify (EV_P) |
1942 | idle_reify (EV_P) |
1708 | { |
1943 | { |
1709 | if (expect_false (idleall)) |
1944 | if (expect_false (idleall)) |
1710 | { |
1945 | { |
1711 | int pri; |
1946 | int pri; |
… | |
… | |
1723 | } |
1958 | } |
1724 | } |
1959 | } |
1725 | } |
1960 | } |
1726 | #endif |
1961 | #endif |
1727 | |
1962 | |
1728 | void inline_size |
1963 | /* make timers pending */ |
|
|
1964 | inline_size void |
1729 | timers_reify (EV_P) |
1965 | timers_reify (EV_P) |
1730 | { |
1966 | { |
1731 | EV_FREQUENT_CHECK; |
1967 | EV_FREQUENT_CHECK; |
1732 | |
1968 | |
1733 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
1969 | if (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
1734 | { |
1970 | { |
1735 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
1971 | do |
1736 | |
|
|
1737 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1738 | |
|
|
1739 | /* first reschedule or stop timer */ |
|
|
1740 | if (w->repeat) |
|
|
1741 | { |
1972 | { |
|
|
1973 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
|
|
1974 | |
|
|
1975 | /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1976 | |
|
|
1977 | /* first reschedule or stop timer */ |
|
|
1978 | if (w->repeat) |
|
|
1979 | { |
1742 | ev_at (w) += w->repeat; |
1980 | ev_at (w) += w->repeat; |
1743 | if (ev_at (w) < mn_now) |
1981 | if (ev_at (w) < mn_now) |
1744 | ev_at (w) = mn_now; |
1982 | ev_at (w) = mn_now; |
1745 | |
1983 | |
1746 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1984 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1747 | |
1985 | |
1748 | ANHE_at_cache (timers [HEAP0]); |
1986 | ANHE_at_cache (timers [HEAP0]); |
1749 | downheap (timers, timercnt, HEAP0); |
1987 | downheap (timers, timercnt, HEAP0); |
|
|
1988 | } |
|
|
1989 | else |
|
|
1990 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1991 | |
|
|
1992 | EV_FREQUENT_CHECK; |
|
|
1993 | feed_reverse (EV_A_ (W)w); |
1750 | } |
1994 | } |
1751 | else |
1995 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
1752 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1753 | |
1996 | |
1754 | EV_FREQUENT_CHECK; |
|
|
1755 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
1997 | feed_reverse_done (EV_A_ EV_TIMEOUT); |
1756 | } |
1998 | } |
1757 | } |
1999 | } |
1758 | |
2000 | |
1759 | #if EV_PERIODIC_ENABLE |
2001 | #if EV_PERIODIC_ENABLE |
1760 | void inline_size |
2002 | /* make periodics pending */ |
|
|
2003 | inline_size void |
1761 | periodics_reify (EV_P) |
2004 | periodics_reify (EV_P) |
1762 | { |
2005 | { |
1763 | EV_FREQUENT_CHECK; |
2006 | EV_FREQUENT_CHECK; |
1764 | |
2007 | |
1765 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
2008 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
1766 | { |
2009 | { |
1767 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
2010 | int feed_count = 0; |
1768 | |
2011 | |
1769 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
2012 | do |
1770 | |
|
|
1771 | /* first reschedule or stop timer */ |
|
|
1772 | if (w->reschedule_cb) |
|
|
1773 | { |
2013 | { |
|
|
2014 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
|
|
2015 | |
|
|
2016 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
2017 | |
|
|
2018 | /* first reschedule or stop timer */ |
|
|
2019 | if (w->reschedule_cb) |
|
|
2020 | { |
1774 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2021 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1775 | |
2022 | |
1776 | assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
2023 | assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
1777 | |
2024 | |
1778 | ANHE_at_cache (periodics [HEAP0]); |
2025 | ANHE_at_cache (periodics [HEAP0]); |
1779 | downheap (periodics, periodiccnt, HEAP0); |
2026 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2027 | } |
|
|
2028 | else if (w->interval) |
|
|
2029 | { |
|
|
2030 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2031 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
2032 | /* this might happen because of floating point inexactness */ |
|
|
2033 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
2034 | { |
|
|
2035 | ev_at (w) += w->interval; |
|
|
2036 | |
|
|
2037 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
2038 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
2039 | /* has effectively asked to get triggered more often than possible */ |
|
|
2040 | if (ev_at (w) < ev_rt_now) |
|
|
2041 | ev_at (w) = ev_rt_now; |
|
|
2042 | } |
|
|
2043 | |
|
|
2044 | ANHE_at_cache (periodics [HEAP0]); |
|
|
2045 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2046 | } |
|
|
2047 | else |
|
|
2048 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2049 | |
|
|
2050 | EV_FREQUENT_CHECK; |
|
|
2051 | feed_reverse (EV_A_ (W)w); |
1780 | } |
2052 | } |
1781 | else if (w->interval) |
2053 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now); |
1782 | { |
|
|
1783 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1784 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
1785 | /* this might happen because of floating point inexactness */ |
|
|
1786 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
1787 | { |
|
|
1788 | ev_at (w) += w->interval; |
|
|
1789 | |
2054 | |
1790 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
1791 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
1792 | /* has effectively asked to get triggered more often than possible */ |
|
|
1793 | if (ev_at (w) < ev_rt_now) |
|
|
1794 | ev_at (w) = ev_rt_now; |
|
|
1795 | } |
|
|
1796 | |
|
|
1797 | ANHE_at_cache (periodics [HEAP0]); |
|
|
1798 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1799 | } |
|
|
1800 | else |
|
|
1801 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1802 | |
|
|
1803 | EV_FREQUENT_CHECK; |
|
|
1804 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
2055 | feed_reverse_done (EV_A_ EV_PERIODIC); |
1805 | } |
2056 | } |
1806 | } |
2057 | } |
1807 | |
2058 | |
|
|
2059 | /* simply recalculate all periodics */ |
|
|
2060 | /* TODO: maybe ensure that at leats one event happens when jumping forward? */ |
1808 | static void noinline |
2061 | static void noinline |
1809 | periodics_reschedule (EV_P) |
2062 | periodics_reschedule (EV_P) |
1810 | { |
2063 | { |
1811 | int i; |
2064 | int i; |
1812 | |
2065 | |
… | |
… | |
1825 | |
2078 | |
1826 | reheap (periodics, periodiccnt); |
2079 | reheap (periodics, periodiccnt); |
1827 | } |
2080 | } |
1828 | #endif |
2081 | #endif |
1829 | |
2082 | |
1830 | void inline_speed |
2083 | /* adjust all timers by a given offset */ |
|
|
2084 | static void noinline |
|
|
2085 | timers_reschedule (EV_P_ ev_tstamp adjust) |
|
|
2086 | { |
|
|
2087 | int i; |
|
|
2088 | |
|
|
2089 | for (i = 0; i < timercnt; ++i) |
|
|
2090 | { |
|
|
2091 | ANHE *he = timers + i + HEAP0; |
|
|
2092 | ANHE_w (*he)->at += adjust; |
|
|
2093 | ANHE_at_cache (*he); |
|
|
2094 | } |
|
|
2095 | } |
|
|
2096 | |
|
|
2097 | /* fetch new monotonic and realtime times from the kernel */ |
|
|
2098 | /* also detetc if there was a timejump, and act accordingly */ |
|
|
2099 | inline_speed void |
1831 | time_update (EV_P_ ev_tstamp max_block) |
2100 | time_update (EV_P_ ev_tstamp max_block) |
1832 | { |
2101 | { |
1833 | int i; |
|
|
1834 | |
|
|
1835 | #if EV_USE_MONOTONIC |
2102 | #if EV_USE_MONOTONIC |
1836 | if (expect_true (have_monotonic)) |
2103 | if (expect_true (have_monotonic)) |
1837 | { |
2104 | { |
|
|
2105 | int i; |
1838 | ev_tstamp odiff = rtmn_diff; |
2106 | ev_tstamp odiff = rtmn_diff; |
1839 | |
2107 | |
1840 | mn_now = get_clock (); |
2108 | mn_now = get_clock (); |
1841 | |
2109 | |
1842 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
2110 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
… | |
… | |
1868 | ev_rt_now = ev_time (); |
2136 | ev_rt_now = ev_time (); |
1869 | mn_now = get_clock (); |
2137 | mn_now = get_clock (); |
1870 | now_floor = mn_now; |
2138 | now_floor = mn_now; |
1871 | } |
2139 | } |
1872 | |
2140 | |
|
|
2141 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
2142 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1873 | # if EV_PERIODIC_ENABLE |
2143 | # if EV_PERIODIC_ENABLE |
1874 | periodics_reschedule (EV_A); |
2144 | periodics_reschedule (EV_A); |
1875 | # endif |
2145 | # endif |
1876 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1877 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1878 | } |
2146 | } |
1879 | else |
2147 | else |
1880 | #endif |
2148 | #endif |
1881 | { |
2149 | { |
1882 | ev_rt_now = ev_time (); |
2150 | ev_rt_now = ev_time (); |
1883 | |
2151 | |
1884 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
2152 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
1885 | { |
2153 | { |
|
|
2154 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
2155 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
1886 | #if EV_PERIODIC_ENABLE |
2156 | #if EV_PERIODIC_ENABLE |
1887 | periodics_reschedule (EV_A); |
2157 | periodics_reschedule (EV_A); |
1888 | #endif |
2158 | #endif |
1889 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1890 | for (i = 0; i < timercnt; ++i) |
|
|
1891 | { |
|
|
1892 | ANHE *he = timers + i + HEAP0; |
|
|
1893 | ANHE_w (*he)->at += ev_rt_now - mn_now; |
|
|
1894 | ANHE_at_cache (*he); |
|
|
1895 | } |
|
|
1896 | } |
2159 | } |
1897 | |
2160 | |
1898 | mn_now = ev_rt_now; |
2161 | mn_now = ev_rt_now; |
1899 | } |
2162 | } |
1900 | } |
2163 | } |
1901 | |
2164 | |
1902 | void |
2165 | void |
1903 | ev_ref (EV_P) |
|
|
1904 | { |
|
|
1905 | ++activecnt; |
|
|
1906 | } |
|
|
1907 | |
|
|
1908 | void |
|
|
1909 | ev_unref (EV_P) |
|
|
1910 | { |
|
|
1911 | --activecnt; |
|
|
1912 | } |
|
|
1913 | |
|
|
1914 | static int loop_done; |
|
|
1915 | |
|
|
1916 | void |
|
|
1917 | ev_loop (EV_P_ int flags) |
2166 | ev_loop (EV_P_ int flags) |
1918 | { |
2167 | { |
|
|
2168 | #if EV_MINIMAL < 2 |
|
|
2169 | ++loop_depth; |
|
|
2170 | #endif |
|
|
2171 | |
|
|
2172 | assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); |
|
|
2173 | |
1919 | loop_done = EVUNLOOP_CANCEL; |
2174 | loop_done = EVUNLOOP_CANCEL; |
1920 | |
2175 | |
1921 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
2176 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
1922 | |
2177 | |
1923 | do |
2178 | do |
1924 | { |
2179 | { |
1925 | #if EV_VERIFY >= 2 |
2180 | #if EV_VERIFY >= 2 |
1926 | ev_loop_verify (EV_A); |
2181 | ev_loop_verify (EV_A); |
… | |
… | |
1939 | /* we might have forked, so queue fork handlers */ |
2194 | /* we might have forked, so queue fork handlers */ |
1940 | if (expect_false (postfork)) |
2195 | if (expect_false (postfork)) |
1941 | if (forkcnt) |
2196 | if (forkcnt) |
1942 | { |
2197 | { |
1943 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2198 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
1944 | call_pending (EV_A); |
2199 | EV_INVOKE_PENDING; |
1945 | } |
2200 | } |
1946 | #endif |
2201 | #endif |
1947 | |
2202 | |
1948 | /* queue prepare watchers (and execute them) */ |
2203 | /* queue prepare watchers (and execute them) */ |
1949 | if (expect_false (preparecnt)) |
2204 | if (expect_false (preparecnt)) |
1950 | { |
2205 | { |
1951 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2206 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1952 | call_pending (EV_A); |
2207 | EV_INVOKE_PENDING; |
1953 | } |
2208 | } |
1954 | |
2209 | |
1955 | if (expect_false (!activecnt)) |
2210 | if (expect_false (loop_done)) |
1956 | break; |
2211 | break; |
1957 | |
2212 | |
1958 | /* we might have forked, so reify kernel state if necessary */ |
2213 | /* we might have forked, so reify kernel state if necessary */ |
1959 | if (expect_false (postfork)) |
2214 | if (expect_false (postfork)) |
1960 | loop_fork (EV_A); |
2215 | loop_fork (EV_A); |
… | |
… | |
1967 | ev_tstamp waittime = 0.; |
2222 | ev_tstamp waittime = 0.; |
1968 | ev_tstamp sleeptime = 0.; |
2223 | ev_tstamp sleeptime = 0.; |
1969 | |
2224 | |
1970 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2225 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
1971 | { |
2226 | { |
|
|
2227 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2228 | ev_tstamp prev_mn_now = mn_now; |
|
|
2229 | |
1972 | /* update time to cancel out callback processing overhead */ |
2230 | /* update time to cancel out callback processing overhead */ |
1973 | time_update (EV_A_ 1e100); |
2231 | time_update (EV_A_ 1e100); |
1974 | |
2232 | |
1975 | waittime = MAX_BLOCKTIME; |
2233 | waittime = MAX_BLOCKTIME; |
1976 | |
2234 | |
… | |
… | |
1986 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
2244 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
1987 | if (waittime > to) waittime = to; |
2245 | if (waittime > to) waittime = to; |
1988 | } |
2246 | } |
1989 | #endif |
2247 | #endif |
1990 | |
2248 | |
|
|
2249 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
1991 | if (expect_false (waittime < timeout_blocktime)) |
2250 | if (expect_false (waittime < timeout_blocktime)) |
1992 | waittime = timeout_blocktime; |
2251 | waittime = timeout_blocktime; |
1993 | |
2252 | |
1994 | sleeptime = waittime - backend_fudge; |
2253 | /* extra check because io_blocktime is commonly 0 */ |
1995 | |
|
|
1996 | if (expect_true (sleeptime > io_blocktime)) |
2254 | if (expect_false (io_blocktime)) |
1997 | sleeptime = io_blocktime; |
|
|
1998 | |
|
|
1999 | if (sleeptime) |
|
|
2000 | { |
2255 | { |
|
|
2256 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
|
|
2257 | |
|
|
2258 | if (sleeptime > waittime - backend_fudge) |
|
|
2259 | sleeptime = waittime - backend_fudge; |
|
|
2260 | |
|
|
2261 | if (expect_true (sleeptime > 0.)) |
|
|
2262 | { |
2001 | ev_sleep (sleeptime); |
2263 | ev_sleep (sleeptime); |
2002 | waittime -= sleeptime; |
2264 | waittime -= sleeptime; |
|
|
2265 | } |
2003 | } |
2266 | } |
2004 | } |
2267 | } |
2005 | |
2268 | |
|
|
2269 | #if EV_MINIMAL < 2 |
2006 | ++loop_count; |
2270 | ++loop_count; |
|
|
2271 | #endif |
|
|
2272 | assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ |
2007 | backend_poll (EV_A_ waittime); |
2273 | backend_poll (EV_A_ waittime); |
|
|
2274 | assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ |
2008 | |
2275 | |
2009 | /* update ev_rt_now, do magic */ |
2276 | /* update ev_rt_now, do magic */ |
2010 | time_update (EV_A_ waittime + sleeptime); |
2277 | time_update (EV_A_ waittime + sleeptime); |
2011 | } |
2278 | } |
2012 | |
2279 | |
… | |
… | |
2023 | |
2290 | |
2024 | /* queue check watchers, to be executed first */ |
2291 | /* queue check watchers, to be executed first */ |
2025 | if (expect_false (checkcnt)) |
2292 | if (expect_false (checkcnt)) |
2026 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2293 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2027 | |
2294 | |
2028 | call_pending (EV_A); |
2295 | EV_INVOKE_PENDING; |
2029 | } |
2296 | } |
2030 | while (expect_true ( |
2297 | while (expect_true ( |
2031 | activecnt |
2298 | activecnt |
2032 | && !loop_done |
2299 | && !loop_done |
2033 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2300 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2034 | )); |
2301 | )); |
2035 | |
2302 | |
2036 | if (loop_done == EVUNLOOP_ONE) |
2303 | if (loop_done == EVUNLOOP_ONE) |
2037 | loop_done = EVUNLOOP_CANCEL; |
2304 | loop_done = EVUNLOOP_CANCEL; |
|
|
2305 | |
|
|
2306 | #if EV_MINIMAL < 2 |
|
|
2307 | --loop_depth; |
|
|
2308 | #endif |
2038 | } |
2309 | } |
2039 | |
2310 | |
2040 | void |
2311 | void |
2041 | ev_unloop (EV_P_ int how) |
2312 | ev_unloop (EV_P_ int how) |
2042 | { |
2313 | { |
2043 | loop_done = how; |
2314 | loop_done = how; |
2044 | } |
2315 | } |
2045 | |
2316 | |
|
|
2317 | void |
|
|
2318 | ev_ref (EV_P) |
|
|
2319 | { |
|
|
2320 | ++activecnt; |
|
|
2321 | } |
|
|
2322 | |
|
|
2323 | void |
|
|
2324 | ev_unref (EV_P) |
|
|
2325 | { |
|
|
2326 | --activecnt; |
|
|
2327 | } |
|
|
2328 | |
|
|
2329 | void |
|
|
2330 | ev_now_update (EV_P) |
|
|
2331 | { |
|
|
2332 | time_update (EV_A_ 1e100); |
|
|
2333 | } |
|
|
2334 | |
|
|
2335 | void |
|
|
2336 | ev_suspend (EV_P) |
|
|
2337 | { |
|
|
2338 | ev_now_update (EV_A); |
|
|
2339 | } |
|
|
2340 | |
|
|
2341 | void |
|
|
2342 | ev_resume (EV_P) |
|
|
2343 | { |
|
|
2344 | ev_tstamp mn_prev = mn_now; |
|
|
2345 | |
|
|
2346 | ev_now_update (EV_A); |
|
|
2347 | timers_reschedule (EV_A_ mn_now - mn_prev); |
|
|
2348 | #if EV_PERIODIC_ENABLE |
|
|
2349 | /* TODO: really do this? */ |
|
|
2350 | periodics_reschedule (EV_A); |
|
|
2351 | #endif |
|
|
2352 | } |
|
|
2353 | |
2046 | /*****************************************************************************/ |
2354 | /*****************************************************************************/ |
|
|
2355 | /* singly-linked list management, used when the expected list length is short */ |
2047 | |
2356 | |
2048 | void inline_size |
2357 | inline_size void |
2049 | wlist_add (WL *head, WL elem) |
2358 | wlist_add (WL *head, WL elem) |
2050 | { |
2359 | { |
2051 | elem->next = *head; |
2360 | elem->next = *head; |
2052 | *head = elem; |
2361 | *head = elem; |
2053 | } |
2362 | } |
2054 | |
2363 | |
2055 | void inline_size |
2364 | inline_size void |
2056 | wlist_del (WL *head, WL elem) |
2365 | wlist_del (WL *head, WL elem) |
2057 | { |
2366 | { |
2058 | while (*head) |
2367 | while (*head) |
2059 | { |
2368 | { |
2060 | if (*head == elem) |
2369 | if (*head == elem) |
… | |
… | |
2065 | |
2374 | |
2066 | head = &(*head)->next; |
2375 | head = &(*head)->next; |
2067 | } |
2376 | } |
2068 | } |
2377 | } |
2069 | |
2378 | |
2070 | void inline_speed |
2379 | /* internal, faster, version of ev_clear_pending */ |
|
|
2380 | inline_speed void |
2071 | clear_pending (EV_P_ W w) |
2381 | clear_pending (EV_P_ W w) |
2072 | { |
2382 | { |
2073 | if (w->pending) |
2383 | if (w->pending) |
2074 | { |
2384 | { |
2075 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
2385 | pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w; |
2076 | w->pending = 0; |
2386 | w->pending = 0; |
2077 | } |
2387 | } |
2078 | } |
2388 | } |
2079 | |
2389 | |
2080 | int |
2390 | int |
… | |
… | |
2084 | int pending = w_->pending; |
2394 | int pending = w_->pending; |
2085 | |
2395 | |
2086 | if (expect_true (pending)) |
2396 | if (expect_true (pending)) |
2087 | { |
2397 | { |
2088 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
2398 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
2399 | p->w = (W)&pending_w; |
2089 | w_->pending = 0; |
2400 | w_->pending = 0; |
2090 | p->w = 0; |
|
|
2091 | return p->events; |
2401 | return p->events; |
2092 | } |
2402 | } |
2093 | else |
2403 | else |
2094 | return 0; |
2404 | return 0; |
2095 | } |
2405 | } |
2096 | |
2406 | |
2097 | void inline_size |
2407 | inline_size void |
2098 | pri_adjust (EV_P_ W w) |
2408 | pri_adjust (EV_P_ W w) |
2099 | { |
2409 | { |
2100 | int pri = w->priority; |
2410 | int pri = ev_priority (w); |
2101 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2411 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2102 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2412 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2103 | w->priority = pri; |
2413 | ev_set_priority (w, pri); |
2104 | } |
2414 | } |
2105 | |
2415 | |
2106 | void inline_speed |
2416 | inline_speed void |
2107 | ev_start (EV_P_ W w, int active) |
2417 | ev_start (EV_P_ W w, int active) |
2108 | { |
2418 | { |
2109 | pri_adjust (EV_A_ w); |
2419 | pri_adjust (EV_A_ w); |
2110 | w->active = active; |
2420 | w->active = active; |
2111 | ev_ref (EV_A); |
2421 | ev_ref (EV_A); |
2112 | } |
2422 | } |
2113 | |
2423 | |
2114 | void inline_size |
2424 | inline_size void |
2115 | ev_stop (EV_P_ W w) |
2425 | ev_stop (EV_P_ W w) |
2116 | { |
2426 | { |
2117 | ev_unref (EV_A); |
2427 | ev_unref (EV_A); |
2118 | w->active = 0; |
2428 | w->active = 0; |
2119 | } |
2429 | } |
… | |
… | |
2126 | int fd = w->fd; |
2436 | int fd = w->fd; |
2127 | |
2437 | |
2128 | if (expect_false (ev_is_active (w))) |
2438 | if (expect_false (ev_is_active (w))) |
2129 | return; |
2439 | return; |
2130 | |
2440 | |
2131 | assert (("ev_io_start called with negative fd", fd >= 0)); |
2441 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
|
|
2442 | assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2132 | |
2443 | |
2133 | EV_FREQUENT_CHECK; |
2444 | EV_FREQUENT_CHECK; |
2134 | |
2445 | |
2135 | ev_start (EV_A_ (W)w, 1); |
2446 | ev_start (EV_A_ (W)w, 1); |
2136 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
2447 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2137 | wlist_add (&anfds[fd].head, (WL)w); |
2448 | wlist_add (&anfds[fd].head, (WL)w); |
2138 | |
2449 | |
2139 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
2450 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
2140 | w->events &= ~EV_IOFDSET; |
2451 | w->events &= ~EV__IOFDSET; |
2141 | |
2452 | |
2142 | EV_FREQUENT_CHECK; |
2453 | EV_FREQUENT_CHECK; |
2143 | } |
2454 | } |
2144 | |
2455 | |
2145 | void noinline |
2456 | void noinline |
… | |
… | |
2147 | { |
2458 | { |
2148 | clear_pending (EV_A_ (W)w); |
2459 | clear_pending (EV_A_ (W)w); |
2149 | if (expect_false (!ev_is_active (w))) |
2460 | if (expect_false (!ev_is_active (w))) |
2150 | return; |
2461 | return; |
2151 | |
2462 | |
2152 | assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2463 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2153 | |
2464 | |
2154 | EV_FREQUENT_CHECK; |
2465 | EV_FREQUENT_CHECK; |
2155 | |
2466 | |
2156 | wlist_del (&anfds[w->fd].head, (WL)w); |
2467 | wlist_del (&anfds[w->fd].head, (WL)w); |
2157 | ev_stop (EV_A_ (W)w); |
2468 | ev_stop (EV_A_ (W)w); |
… | |
… | |
2167 | if (expect_false (ev_is_active (w))) |
2478 | if (expect_false (ev_is_active (w))) |
2168 | return; |
2479 | return; |
2169 | |
2480 | |
2170 | ev_at (w) += mn_now; |
2481 | ev_at (w) += mn_now; |
2171 | |
2482 | |
2172 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2483 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2173 | |
2484 | |
2174 | EV_FREQUENT_CHECK; |
2485 | EV_FREQUENT_CHECK; |
2175 | |
2486 | |
2176 | ++timercnt; |
2487 | ++timercnt; |
2177 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
2488 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
… | |
… | |
2180 | ANHE_at_cache (timers [ev_active (w)]); |
2491 | ANHE_at_cache (timers [ev_active (w)]); |
2181 | upheap (timers, ev_active (w)); |
2492 | upheap (timers, ev_active (w)); |
2182 | |
2493 | |
2183 | EV_FREQUENT_CHECK; |
2494 | EV_FREQUENT_CHECK; |
2184 | |
2495 | |
2185 | /*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2496 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2186 | } |
2497 | } |
2187 | |
2498 | |
2188 | void noinline |
2499 | void noinline |
2189 | ev_timer_stop (EV_P_ ev_timer *w) |
2500 | ev_timer_stop (EV_P_ ev_timer *w) |
2190 | { |
2501 | { |
… | |
… | |
2195 | EV_FREQUENT_CHECK; |
2506 | EV_FREQUENT_CHECK; |
2196 | |
2507 | |
2197 | { |
2508 | { |
2198 | int active = ev_active (w); |
2509 | int active = ev_active (w); |
2199 | |
2510 | |
2200 | assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
2511 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
2201 | |
2512 | |
2202 | --timercnt; |
2513 | --timercnt; |
2203 | |
2514 | |
2204 | if (expect_true (active < timercnt + HEAP0)) |
2515 | if (expect_true (active < timercnt + HEAP0)) |
2205 | { |
2516 | { |
… | |
… | |
2238 | } |
2549 | } |
2239 | |
2550 | |
2240 | EV_FREQUENT_CHECK; |
2551 | EV_FREQUENT_CHECK; |
2241 | } |
2552 | } |
2242 | |
2553 | |
|
|
2554 | ev_tstamp |
|
|
2555 | ev_timer_remaining (EV_P_ ev_timer *w) |
|
|
2556 | { |
|
|
2557 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
|
|
2558 | } |
|
|
2559 | |
2243 | #if EV_PERIODIC_ENABLE |
2560 | #if EV_PERIODIC_ENABLE |
2244 | void noinline |
2561 | void noinline |
2245 | ev_periodic_start (EV_P_ ev_periodic *w) |
2562 | ev_periodic_start (EV_P_ ev_periodic *w) |
2246 | { |
2563 | { |
2247 | if (expect_false (ev_is_active (w))) |
2564 | if (expect_false (ev_is_active (w))) |
… | |
… | |
2249 | |
2566 | |
2250 | if (w->reschedule_cb) |
2567 | if (w->reschedule_cb) |
2251 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2568 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2252 | else if (w->interval) |
2569 | else if (w->interval) |
2253 | { |
2570 | { |
2254 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2571 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2255 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2572 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2256 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2573 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2257 | } |
2574 | } |
2258 | else |
2575 | else |
2259 | ev_at (w) = w->offset; |
2576 | ev_at (w) = w->offset; |
… | |
… | |
2267 | ANHE_at_cache (periodics [ev_active (w)]); |
2584 | ANHE_at_cache (periodics [ev_active (w)]); |
2268 | upheap (periodics, ev_active (w)); |
2585 | upheap (periodics, ev_active (w)); |
2269 | |
2586 | |
2270 | EV_FREQUENT_CHECK; |
2587 | EV_FREQUENT_CHECK; |
2271 | |
2588 | |
2272 | /*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2589 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2273 | } |
2590 | } |
2274 | |
2591 | |
2275 | void noinline |
2592 | void noinline |
2276 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2593 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2277 | { |
2594 | { |
… | |
… | |
2282 | EV_FREQUENT_CHECK; |
2599 | EV_FREQUENT_CHECK; |
2283 | |
2600 | |
2284 | { |
2601 | { |
2285 | int active = ev_active (w); |
2602 | int active = ev_active (w); |
2286 | |
2603 | |
2287 | assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
2604 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
2288 | |
2605 | |
2289 | --periodiccnt; |
2606 | --periodiccnt; |
2290 | |
2607 | |
2291 | if (expect_true (active < periodiccnt + HEAP0)) |
2608 | if (expect_true (active < periodiccnt + HEAP0)) |
2292 | { |
2609 | { |
… | |
… | |
2315 | |
2632 | |
2316 | void noinline |
2633 | void noinline |
2317 | ev_signal_start (EV_P_ ev_signal *w) |
2634 | ev_signal_start (EV_P_ ev_signal *w) |
2318 | { |
2635 | { |
2319 | #if EV_MULTIPLICITY |
2636 | #if EV_MULTIPLICITY |
2320 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2637 | assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2321 | #endif |
2638 | #endif |
2322 | if (expect_false (ev_is_active (w))) |
2639 | if (expect_false (ev_is_active (w))) |
2323 | return; |
2640 | return; |
2324 | |
2641 | |
2325 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2642 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); |
2326 | |
2643 | |
|
|
2644 | EV_FREQUENT_CHECK; |
|
|
2645 | |
|
|
2646 | #if EV_USE_SIGNALFD |
|
|
2647 | if (sigfd == -2) |
|
|
2648 | { |
|
|
2649 | sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC); |
|
|
2650 | if (sigfd < 0 && errno == EINVAL) |
|
|
2651 | sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */ |
|
|
2652 | |
|
|
2653 | if (sigfd >= 0) |
|
|
2654 | { |
|
|
2655 | fd_intern (sigfd); /* doing it twice will not hurt */ |
|
|
2656 | |
|
|
2657 | sigemptyset (&sigfd_set); |
|
|
2658 | |
|
|
2659 | ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ); |
|
|
2660 | ev_set_priority (&sigfd_w, EV_MAXPRI); |
|
|
2661 | ev_io_start (EV_A_ &sigfd_w); |
|
|
2662 | ev_unref (EV_A); /* signalfd watcher should not keep loop alive */ |
|
|
2663 | } |
|
|
2664 | } |
|
|
2665 | |
|
|
2666 | if (sigfd >= 0) |
|
|
2667 | { |
|
|
2668 | /* TODO: check .head */ |
|
|
2669 | sigaddset (&sigfd_set, w->signum); |
|
|
2670 | sigprocmask (SIG_BLOCK, &sigfd_set, 0); |
|
|
2671 | |
|
|
2672 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2673 | } |
|
|
2674 | else |
|
|
2675 | #endif |
2327 | evpipe_init (EV_A); |
2676 | evpipe_init (EV_A); |
2328 | |
|
|
2329 | EV_FREQUENT_CHECK; |
|
|
2330 | |
2677 | |
2331 | { |
2678 | { |
2332 | #ifndef _WIN32 |
2679 | #ifndef _WIN32 |
2333 | sigset_t full, prev; |
2680 | sigset_t full, prev; |
2334 | sigfillset (&full); |
2681 | sigfillset (&full); |
2335 | sigprocmask (SIG_SETMASK, &full, &prev); |
2682 | sigprocmask (SIG_SETMASK, &full, &prev); |
2336 | #endif |
2683 | #endif |
2337 | |
2684 | |
2338 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
2685 | array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); |
2339 | |
2686 | |
2340 | #ifndef _WIN32 |
2687 | #ifndef _WIN32 |
|
|
2688 | # if EV_USE_SIGNALFD |
|
|
2689 | if (sigfd < 0)/*TODO*/ |
|
|
2690 | # endif |
|
|
2691 | sigdelset (&prev, w->signum); |
2341 | sigprocmask (SIG_SETMASK, &prev, 0); |
2692 | sigprocmask (SIG_SETMASK, &prev, 0); |
2342 | #endif |
2693 | #endif |
2343 | } |
2694 | } |
2344 | |
2695 | |
2345 | ev_start (EV_A_ (W)w, 1); |
2696 | ev_start (EV_A_ (W)w, 1); |
… | |
… | |
2348 | if (!((WL)w)->next) |
2699 | if (!((WL)w)->next) |
2349 | { |
2700 | { |
2350 | #if _WIN32 |
2701 | #if _WIN32 |
2351 | signal (w->signum, ev_sighandler); |
2702 | signal (w->signum, ev_sighandler); |
2352 | #else |
2703 | #else |
|
|
2704 | # if EV_USE_SIGNALFD |
|
|
2705 | if (sigfd < 0) /*TODO*/ |
|
|
2706 | # endif |
|
|
2707 | { |
2353 | struct sigaction sa; |
2708 | struct sigaction sa = { }; |
2354 | sa.sa_handler = ev_sighandler; |
2709 | sa.sa_handler = ev_sighandler; |
2355 | sigfillset (&sa.sa_mask); |
2710 | sigfillset (&sa.sa_mask); |
2356 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2711 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2357 | sigaction (w->signum, &sa, 0); |
2712 | sigaction (w->signum, &sa, 0); |
|
|
2713 | } |
2358 | #endif |
2714 | #endif |
2359 | } |
2715 | } |
2360 | |
2716 | |
2361 | EV_FREQUENT_CHECK; |
2717 | EV_FREQUENT_CHECK; |
2362 | } |
2718 | } |
… | |
… | |
2372 | |
2728 | |
2373 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2729 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2374 | ev_stop (EV_A_ (W)w); |
2730 | ev_stop (EV_A_ (W)w); |
2375 | |
2731 | |
2376 | if (!signals [w->signum - 1].head) |
2732 | if (!signals [w->signum - 1].head) |
|
|
2733 | #if EV_USE_SIGNALFD |
|
|
2734 | if (sigfd >= 0) |
|
|
2735 | { |
|
|
2736 | sigprocmask (SIG_UNBLOCK, &sigfd_set, 0);//D |
|
|
2737 | sigdelset (&sigfd_set, w->signum); |
|
|
2738 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2739 | sigprocmask (SIG_BLOCK, &sigfd_set, 0);//D |
|
|
2740 | /*TODO: maybe unblock signal? */ |
|
|
2741 | } |
|
|
2742 | else |
|
|
2743 | #endif |
2377 | signal (w->signum, SIG_DFL); |
2744 | signal (w->signum, SIG_DFL); |
2378 | |
2745 | |
2379 | EV_FREQUENT_CHECK; |
2746 | EV_FREQUENT_CHECK; |
2380 | } |
2747 | } |
2381 | |
2748 | |
2382 | void |
2749 | void |
2383 | ev_child_start (EV_P_ ev_child *w) |
2750 | ev_child_start (EV_P_ ev_child *w) |
2384 | { |
2751 | { |
2385 | #if EV_MULTIPLICITY |
2752 | #if EV_MULTIPLICITY |
2386 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2753 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2387 | #endif |
2754 | #endif |
2388 | if (expect_false (ev_is_active (w))) |
2755 | if (expect_false (ev_is_active (w))) |
2389 | return; |
2756 | return; |
2390 | |
2757 | |
2391 | EV_FREQUENT_CHECK; |
2758 | EV_FREQUENT_CHECK; |
… | |
… | |
2416 | # ifdef _WIN32 |
2783 | # ifdef _WIN32 |
2417 | # undef lstat |
2784 | # undef lstat |
2418 | # define lstat(a,b) _stati64 (a,b) |
2785 | # define lstat(a,b) _stati64 (a,b) |
2419 | # endif |
2786 | # endif |
2420 | |
2787 | |
2421 | #define DEF_STAT_INTERVAL 5.0074891 |
2788 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
2789 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
2422 | #define MIN_STAT_INTERVAL 0.1074891 |
2790 | #define MIN_STAT_INTERVAL 0.1074891 |
2423 | |
2791 | |
2424 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2792 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2425 | |
2793 | |
2426 | #if EV_USE_INOTIFY |
2794 | #if EV_USE_INOTIFY |
2427 | # define EV_INOTIFY_BUFSIZE 8192 |
2795 | # define EV_INOTIFY_BUFSIZE 8192 |
… | |
… | |
2431 | { |
2799 | { |
2432 | 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); |
2800 | 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); |
2433 | |
2801 | |
2434 | if (w->wd < 0) |
2802 | if (w->wd < 0) |
2435 | { |
2803 | { |
|
|
2804 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2436 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2805 | ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2437 | |
2806 | |
2438 | /* monitor some parent directory for speedup hints */ |
2807 | /* monitor some parent directory for speedup hints */ |
2439 | /* note that exceeding the hardcoded limit is not a correctness issue, */ |
2808 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2440 | /* but an efficiency issue only */ |
2809 | /* but an efficiency issue only */ |
2441 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2810 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2442 | { |
2811 | { |
2443 | char path [4096]; |
2812 | char path [4096]; |
2444 | strcpy (path, w->path); |
2813 | strcpy (path, w->path); |
… | |
… | |
2448 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2817 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2449 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2818 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2450 | |
2819 | |
2451 | char *pend = strrchr (path, '/'); |
2820 | char *pend = strrchr (path, '/'); |
2452 | |
2821 | |
2453 | if (!pend) |
2822 | if (!pend || pend == path) |
2454 | break; /* whoops, no '/', complain to your admin */ |
2823 | break; |
2455 | |
2824 | |
2456 | *pend = 0; |
2825 | *pend = 0; |
2457 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2826 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2458 | } |
2827 | } |
2459 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2828 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2460 | } |
2829 | } |
2461 | } |
2830 | } |
2462 | else |
|
|
2463 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
2464 | |
2831 | |
2465 | if (w->wd >= 0) |
2832 | if (w->wd >= 0) |
|
|
2833 | { |
2466 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2834 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
2835 | |
|
|
2836 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
2837 | /* unless the filesystem it known to be local, we therefore still poll */ |
|
|
2838 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2839 | struct statfs sfs; |
|
|
2840 | |
|
|
2841 | if (fs_2625 && !statfs (w->path, &sfs)) |
|
|
2842 | if (sfs.f_type == 0x1373 /* devfs */ |
|
|
2843 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2844 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2845 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2846 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2847 | || sfs.f_type == 0x58465342 /* xfs */) |
|
|
2848 | return; |
|
|
2849 | |
|
|
2850 | w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2851 | ev_timer_again (EV_A_ &w->timer); |
|
|
2852 | } |
2467 | } |
2853 | } |
2468 | |
2854 | |
2469 | static void noinline |
2855 | static void noinline |
2470 | infy_del (EV_P_ ev_stat *w) |
2856 | infy_del (EV_P_ ev_stat *w) |
2471 | { |
2857 | { |
… | |
… | |
2485 | |
2871 | |
2486 | static void noinline |
2872 | static void noinline |
2487 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2873 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2488 | { |
2874 | { |
2489 | if (slot < 0) |
2875 | if (slot < 0) |
2490 | /* overflow, need to check for all hahs slots */ |
2876 | /* overflow, need to check for all hash slots */ |
2491 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2877 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2492 | infy_wd (EV_A_ slot, wd, ev); |
2878 | infy_wd (EV_A_ slot, wd, ev); |
2493 | else |
2879 | else |
2494 | { |
2880 | { |
2495 | WL w_; |
2881 | WL w_; |
… | |
… | |
2501 | |
2887 | |
2502 | if (w->wd == wd || wd == -1) |
2888 | if (w->wd == wd || wd == -1) |
2503 | { |
2889 | { |
2504 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2890 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2505 | { |
2891 | { |
|
|
2892 | wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2506 | w->wd = -1; |
2893 | w->wd = -1; |
2507 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2894 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2508 | } |
2895 | } |
2509 | |
2896 | |
2510 | stat_timer_cb (EV_A_ &w->timer, 0); |
2897 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2523 | |
2910 | |
2524 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
2911 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
2525 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
2912 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
2526 | } |
2913 | } |
2527 | |
2914 | |
2528 | void inline_size |
2915 | inline_size void |
|
|
2916 | check_2625 (EV_P) |
|
|
2917 | { |
|
|
2918 | /* kernels < 2.6.25 are borked |
|
|
2919 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
|
|
2920 | */ |
|
|
2921 | struct utsname buf; |
|
|
2922 | int major, minor, micro; |
|
|
2923 | |
|
|
2924 | if (uname (&buf)) |
|
|
2925 | return; |
|
|
2926 | |
|
|
2927 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
|
|
2928 | return; |
|
|
2929 | |
|
|
2930 | if (major < 2 |
|
|
2931 | || (major == 2 && minor < 6) |
|
|
2932 | || (major == 2 && minor == 6 && micro < 25)) |
|
|
2933 | return; |
|
|
2934 | |
|
|
2935 | fs_2625 = 1; |
|
|
2936 | } |
|
|
2937 | |
|
|
2938 | inline_size void |
2529 | infy_init (EV_P) |
2939 | infy_init (EV_P) |
2530 | { |
2940 | { |
2531 | if (fs_fd != -2) |
2941 | if (fs_fd != -2) |
2532 | return; |
2942 | return; |
|
|
2943 | |
|
|
2944 | fs_fd = -1; |
|
|
2945 | |
|
|
2946 | check_2625 (EV_A); |
2533 | |
2947 | |
2534 | fs_fd = inotify_init (); |
2948 | fs_fd = inotify_init (); |
2535 | |
2949 | |
2536 | if (fs_fd >= 0) |
2950 | if (fs_fd >= 0) |
2537 | { |
2951 | { |
… | |
… | |
2539 | ev_set_priority (&fs_w, EV_MAXPRI); |
2953 | ev_set_priority (&fs_w, EV_MAXPRI); |
2540 | ev_io_start (EV_A_ &fs_w); |
2954 | ev_io_start (EV_A_ &fs_w); |
2541 | } |
2955 | } |
2542 | } |
2956 | } |
2543 | |
2957 | |
2544 | void inline_size |
2958 | inline_size void |
2545 | infy_fork (EV_P) |
2959 | infy_fork (EV_P) |
2546 | { |
2960 | { |
2547 | int slot; |
2961 | int slot; |
2548 | |
2962 | |
2549 | if (fs_fd < 0) |
2963 | if (fs_fd < 0) |
… | |
… | |
2565 | w->wd = -1; |
2979 | w->wd = -1; |
2566 | |
2980 | |
2567 | if (fs_fd >= 0) |
2981 | if (fs_fd >= 0) |
2568 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2982 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2569 | else |
2983 | else |
2570 | ev_timer_start (EV_A_ &w->timer); |
2984 | ev_timer_again (EV_A_ &w->timer); |
2571 | } |
2985 | } |
2572 | |
|
|
2573 | } |
2986 | } |
2574 | } |
2987 | } |
2575 | |
2988 | |
2576 | #endif |
2989 | #endif |
2577 | |
2990 | |
… | |
… | |
2613 | || w->prev.st_atime != w->attr.st_atime |
3026 | || w->prev.st_atime != w->attr.st_atime |
2614 | || w->prev.st_mtime != w->attr.st_mtime |
3027 | || w->prev.st_mtime != w->attr.st_mtime |
2615 | || w->prev.st_ctime != w->attr.st_ctime |
3028 | || w->prev.st_ctime != w->attr.st_ctime |
2616 | ) { |
3029 | ) { |
2617 | #if EV_USE_INOTIFY |
3030 | #if EV_USE_INOTIFY |
|
|
3031 | if (fs_fd >= 0) |
|
|
3032 | { |
2618 | infy_del (EV_A_ w); |
3033 | infy_del (EV_A_ w); |
2619 | infy_add (EV_A_ w); |
3034 | infy_add (EV_A_ w); |
2620 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
3035 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
3036 | } |
2621 | #endif |
3037 | #endif |
2622 | |
3038 | |
2623 | ev_feed_event (EV_A_ w, EV_STAT); |
3039 | ev_feed_event (EV_A_ w, EV_STAT); |
2624 | } |
3040 | } |
2625 | } |
3041 | } |
… | |
… | |
2628 | ev_stat_start (EV_P_ ev_stat *w) |
3044 | ev_stat_start (EV_P_ ev_stat *w) |
2629 | { |
3045 | { |
2630 | if (expect_false (ev_is_active (w))) |
3046 | if (expect_false (ev_is_active (w))) |
2631 | return; |
3047 | return; |
2632 | |
3048 | |
2633 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2634 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2635 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2636 | |
|
|
2637 | ev_stat_stat (EV_A_ w); |
3049 | ev_stat_stat (EV_A_ w); |
2638 | |
3050 | |
|
|
3051 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
2639 | if (w->interval < MIN_STAT_INTERVAL) |
3052 | w->interval = MIN_STAT_INTERVAL; |
2640 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2641 | |
3053 | |
2642 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
3054 | ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL); |
2643 | ev_set_priority (&w->timer, ev_priority (w)); |
3055 | ev_set_priority (&w->timer, ev_priority (w)); |
2644 | |
3056 | |
2645 | #if EV_USE_INOTIFY |
3057 | #if EV_USE_INOTIFY |
2646 | infy_init (EV_A); |
3058 | infy_init (EV_A); |
2647 | |
3059 | |
2648 | if (fs_fd >= 0) |
3060 | if (fs_fd >= 0) |
2649 | infy_add (EV_A_ w); |
3061 | infy_add (EV_A_ w); |
2650 | else |
3062 | else |
2651 | #endif |
3063 | #endif |
2652 | ev_timer_start (EV_A_ &w->timer); |
3064 | ev_timer_again (EV_A_ &w->timer); |
2653 | |
3065 | |
2654 | ev_start (EV_A_ (W)w, 1); |
3066 | ev_start (EV_A_ (W)w, 1); |
2655 | |
3067 | |
2656 | EV_FREQUENT_CHECK; |
3068 | EV_FREQUENT_CHECK; |
2657 | } |
3069 | } |
… | |
… | |
2827 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3239 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
2828 | } |
3240 | } |
2829 | } |
3241 | } |
2830 | } |
3242 | } |
2831 | |
3243 | |
|
|
3244 | static void |
|
|
3245 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
|
|
3246 | { |
|
|
3247 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
|
|
3248 | |
|
|
3249 | ev_embed_stop (EV_A_ w); |
|
|
3250 | |
|
|
3251 | { |
|
|
3252 | struct ev_loop *loop = w->other; |
|
|
3253 | |
|
|
3254 | ev_loop_fork (EV_A); |
|
|
3255 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
3256 | } |
|
|
3257 | |
|
|
3258 | ev_embed_start (EV_A_ w); |
|
|
3259 | } |
|
|
3260 | |
2832 | #if 0 |
3261 | #if 0 |
2833 | static void |
3262 | static void |
2834 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
3263 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
2835 | { |
3264 | { |
2836 | ev_idle_stop (EV_A_ idle); |
3265 | ev_idle_stop (EV_A_ idle); |
… | |
… | |
2843 | if (expect_false (ev_is_active (w))) |
3272 | if (expect_false (ev_is_active (w))) |
2844 | return; |
3273 | return; |
2845 | |
3274 | |
2846 | { |
3275 | { |
2847 | struct ev_loop *loop = w->other; |
3276 | struct ev_loop *loop = w->other; |
2848 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3277 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2849 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3278 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2850 | } |
3279 | } |
2851 | |
3280 | |
2852 | EV_FREQUENT_CHECK; |
3281 | EV_FREQUENT_CHECK; |
2853 | |
3282 | |
… | |
… | |
2856 | |
3285 | |
2857 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
3286 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
2858 | ev_set_priority (&w->prepare, EV_MINPRI); |
3287 | ev_set_priority (&w->prepare, EV_MINPRI); |
2859 | ev_prepare_start (EV_A_ &w->prepare); |
3288 | ev_prepare_start (EV_A_ &w->prepare); |
2860 | |
3289 | |
|
|
3290 | ev_fork_init (&w->fork, embed_fork_cb); |
|
|
3291 | ev_fork_start (EV_A_ &w->fork); |
|
|
3292 | |
2861 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
3293 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
2862 | |
3294 | |
2863 | ev_start (EV_A_ (W)w, 1); |
3295 | ev_start (EV_A_ (W)w, 1); |
2864 | |
3296 | |
2865 | EV_FREQUENT_CHECK; |
3297 | EV_FREQUENT_CHECK; |
… | |
… | |
2872 | if (expect_false (!ev_is_active (w))) |
3304 | if (expect_false (!ev_is_active (w))) |
2873 | return; |
3305 | return; |
2874 | |
3306 | |
2875 | EV_FREQUENT_CHECK; |
3307 | EV_FREQUENT_CHECK; |
2876 | |
3308 | |
2877 | ev_io_stop (EV_A_ &w->io); |
3309 | ev_io_stop (EV_A_ &w->io); |
2878 | ev_prepare_stop (EV_A_ &w->prepare); |
3310 | ev_prepare_stop (EV_A_ &w->prepare); |
2879 | |
3311 | ev_fork_stop (EV_A_ &w->fork); |
2880 | ev_stop (EV_A_ (W)w); |
|
|
2881 | |
3312 | |
2882 | EV_FREQUENT_CHECK; |
3313 | EV_FREQUENT_CHECK; |
2883 | } |
3314 | } |
2884 | #endif |
3315 | #endif |
2885 | |
3316 | |
… | |
… | |
2992 | } |
3423 | } |
2993 | |
3424 | |
2994 | static void |
3425 | static void |
2995 | once_cb_io (EV_P_ ev_io *w, int revents) |
3426 | once_cb_io (EV_P_ ev_io *w, int revents) |
2996 | { |
3427 | { |
2997 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
3428 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)); |
|
|
3429 | |
|
|
3430 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to)); |
2998 | } |
3431 | } |
2999 | |
3432 | |
3000 | static void |
3433 | static void |
3001 | once_cb_to (EV_P_ ev_timer *w, int revents) |
3434 | once_cb_to (EV_P_ ev_timer *w, int revents) |
3002 | { |
3435 | { |
3003 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
3436 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)); |
|
|
3437 | |
|
|
3438 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
3004 | } |
3439 | } |
3005 | |
3440 | |
3006 | void |
3441 | void |
3007 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
3442 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
3008 | { |
3443 | { |
… | |
… | |
3030 | ev_timer_set (&once->to, timeout, 0.); |
3465 | ev_timer_set (&once->to, timeout, 0.); |
3031 | ev_timer_start (EV_A_ &once->to); |
3466 | ev_timer_start (EV_A_ &once->to); |
3032 | } |
3467 | } |
3033 | } |
3468 | } |
3034 | |
3469 | |
|
|
3470 | /*****************************************************************************/ |
|
|
3471 | |
|
|
3472 | #if EV_WALK_ENABLE |
|
|
3473 | void |
|
|
3474 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
|
|
3475 | { |
|
|
3476 | int i, j; |
|
|
3477 | ev_watcher_list *wl, *wn; |
|
|
3478 | |
|
|
3479 | if (types & (EV_IO | EV_EMBED)) |
|
|
3480 | for (i = 0; i < anfdmax; ++i) |
|
|
3481 | for (wl = anfds [i].head; wl; ) |
|
|
3482 | { |
|
|
3483 | wn = wl->next; |
|
|
3484 | |
|
|
3485 | #if EV_EMBED_ENABLE |
|
|
3486 | if (ev_cb ((ev_io *)wl) == embed_io_cb) |
|
|
3487 | { |
|
|
3488 | if (types & EV_EMBED) |
|
|
3489 | cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io)); |
|
|
3490 | } |
|
|
3491 | else |
|
|
3492 | #endif |
|
|
3493 | #if EV_USE_INOTIFY |
|
|
3494 | if (ev_cb ((ev_io *)wl) == infy_cb) |
|
|
3495 | ; |
|
|
3496 | else |
|
|
3497 | #endif |
|
|
3498 | if ((ev_io *)wl != &pipe_w) |
|
|
3499 | if (types & EV_IO) |
|
|
3500 | cb (EV_A_ EV_IO, wl); |
|
|
3501 | |
|
|
3502 | wl = wn; |
|
|
3503 | } |
|
|
3504 | |
|
|
3505 | if (types & (EV_TIMER | EV_STAT)) |
|
|
3506 | for (i = timercnt + HEAP0; i-- > HEAP0; ) |
|
|
3507 | #if EV_STAT_ENABLE |
|
|
3508 | /*TODO: timer is not always active*/ |
|
|
3509 | if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb) |
|
|
3510 | { |
|
|
3511 | if (types & EV_STAT) |
|
|
3512 | cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer)); |
|
|
3513 | } |
|
|
3514 | else |
|
|
3515 | #endif |
|
|
3516 | if (types & EV_TIMER) |
|
|
3517 | cb (EV_A_ EV_TIMER, ANHE_w (timers [i])); |
|
|
3518 | |
|
|
3519 | #if EV_PERIODIC_ENABLE |
|
|
3520 | if (types & EV_PERIODIC) |
|
|
3521 | for (i = periodiccnt + HEAP0; i-- > HEAP0; ) |
|
|
3522 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
|
|
3523 | #endif |
|
|
3524 | |
|
|
3525 | #if EV_IDLE_ENABLE |
|
|
3526 | if (types & EV_IDLE) |
|
|
3527 | for (j = NUMPRI; i--; ) |
|
|
3528 | for (i = idlecnt [j]; i--; ) |
|
|
3529 | cb (EV_A_ EV_IDLE, idles [j][i]); |
|
|
3530 | #endif |
|
|
3531 | |
|
|
3532 | #if EV_FORK_ENABLE |
|
|
3533 | if (types & EV_FORK) |
|
|
3534 | for (i = forkcnt; i--; ) |
|
|
3535 | if (ev_cb (forks [i]) != embed_fork_cb) |
|
|
3536 | cb (EV_A_ EV_FORK, forks [i]); |
|
|
3537 | #endif |
|
|
3538 | |
|
|
3539 | #if EV_ASYNC_ENABLE |
|
|
3540 | if (types & EV_ASYNC) |
|
|
3541 | for (i = asynccnt; i--; ) |
|
|
3542 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
|
|
3543 | #endif |
|
|
3544 | |
|
|
3545 | if (types & EV_PREPARE) |
|
|
3546 | for (i = preparecnt; i--; ) |
|
|
3547 | #if EV_EMBED_ENABLE |
|
|
3548 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
|
|
3549 | #endif |
|
|
3550 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
3551 | |
|
|
3552 | if (types & EV_CHECK) |
|
|
3553 | for (i = checkcnt; i--; ) |
|
|
3554 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
3555 | |
|
|
3556 | if (types & EV_SIGNAL) |
|
|
3557 | for (i = 0; i < signalmax; ++i) |
|
|
3558 | for (wl = signals [i].head; wl; ) |
|
|
3559 | { |
|
|
3560 | wn = wl->next; |
|
|
3561 | cb (EV_A_ EV_SIGNAL, wl); |
|
|
3562 | wl = wn; |
|
|
3563 | } |
|
|
3564 | |
|
|
3565 | if (types & EV_CHILD) |
|
|
3566 | for (i = EV_PID_HASHSIZE; i--; ) |
|
|
3567 | for (wl = childs [i]; wl; ) |
|
|
3568 | { |
|
|
3569 | wn = wl->next; |
|
|
3570 | cb (EV_A_ EV_CHILD, wl); |
|
|
3571 | wl = wn; |
|
|
3572 | } |
|
|
3573 | /* EV_STAT 0x00001000 /* stat data changed */ |
|
|
3574 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
|
|
3575 | } |
|
|
3576 | #endif |
|
|
3577 | |
3035 | #if EV_MULTIPLICITY |
3578 | #if EV_MULTIPLICITY |
3036 | #include "ev_wrap.h" |
3579 | #include "ev_wrap.h" |
3037 | #endif |
3580 | #endif |
3038 | |
3581 | |
3039 | #ifdef __cplusplus |
3582 | #ifdef __cplusplus |