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 |
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|
55 | # ifndef EV_USE_REALTIME |
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|
56 | # define EV_USE_REALTIME 0 |
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|
57 | # endif |
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|
58 | # ifndef EV_USE_MONOTONIC |
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59 | # define EV_USE_MONOTONIC 1 |
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60 | # endif |
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|
61 | # endif |
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|
62 | # endif |
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|
63 | |
52 | # if HAVE_CLOCK_GETTIME |
64 | # if HAVE_CLOCK_GETTIME |
53 | # ifndef EV_USE_MONOTONIC |
65 | # ifndef EV_USE_MONOTONIC |
54 | # define EV_USE_MONOTONIC 1 |
66 | # define EV_USE_MONOTONIC 1 |
55 | # endif |
67 | # endif |
56 | # ifndef EV_USE_REALTIME |
68 | # ifndef EV_USE_REALTIME |
57 | # define EV_USE_REALTIME 1 |
69 | # define EV_USE_REALTIME 0 |
58 | # endif |
70 | # endif |
59 | # else |
71 | # else |
60 | # ifndef EV_USE_MONOTONIC |
72 | # ifndef EV_USE_MONOTONIC |
61 | # define EV_USE_MONOTONIC 0 |
73 | # define EV_USE_MONOTONIC 0 |
62 | # endif |
74 | # endif |
… | |
… | |
126 | # define EV_USE_EVENTFD 1 |
138 | # define EV_USE_EVENTFD 1 |
127 | # else |
139 | # else |
128 | # define EV_USE_EVENTFD 0 |
140 | # define EV_USE_EVENTFD 0 |
129 | # endif |
141 | # endif |
130 | # endif |
142 | # endif |
131 | |
143 | |
132 | #endif |
144 | #endif |
133 | |
145 | |
134 | #include <math.h> |
146 | #include <math.h> |
135 | #include <stdlib.h> |
147 | #include <stdlib.h> |
136 | #include <fcntl.h> |
148 | #include <fcntl.h> |
… | |
… | |
154 | #ifndef _WIN32 |
166 | #ifndef _WIN32 |
155 | # include <sys/time.h> |
167 | # include <sys/time.h> |
156 | # include <sys/wait.h> |
168 | # include <sys/wait.h> |
157 | # include <unistd.h> |
169 | # include <unistd.h> |
158 | #else |
170 | #else |
|
|
171 | # include <io.h> |
159 | # define WIN32_LEAN_AND_MEAN |
172 | # define WIN32_LEAN_AND_MEAN |
160 | # include <windows.h> |
173 | # include <windows.h> |
161 | # ifndef EV_SELECT_IS_WINSOCKET |
174 | # ifndef EV_SELECT_IS_WINSOCKET |
162 | # define EV_SELECT_IS_WINSOCKET 1 |
175 | # define EV_SELECT_IS_WINSOCKET 1 |
163 | # endif |
176 | # endif |
164 | #endif |
177 | #endif |
165 | |
178 | |
166 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
179 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
167 | |
180 | |
|
|
181 | #ifndef EV_USE_CLOCK_SYSCALL |
|
|
182 | # if __linux && __GLIBC__ >= 2 |
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|
183 | # define EV_USE_CLOCK_SYSCALL 1 |
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|
184 | # else |
|
|
185 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
186 | # endif |
|
|
187 | #endif |
|
|
188 | |
168 | #ifndef EV_USE_MONOTONIC |
189 | #ifndef EV_USE_MONOTONIC |
|
|
190 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
|
|
191 | # define EV_USE_MONOTONIC 1 |
|
|
192 | # else |
169 | # define EV_USE_MONOTONIC 0 |
193 | # define EV_USE_MONOTONIC 0 |
|
|
194 | # endif |
170 | #endif |
195 | #endif |
171 | |
196 | |
172 | #ifndef EV_USE_REALTIME |
197 | #ifndef EV_USE_REALTIME |
173 | # define EV_USE_REALTIME 0 |
198 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
174 | #endif |
199 | #endif |
175 | |
200 | |
176 | #ifndef EV_USE_NANOSLEEP |
201 | #ifndef EV_USE_NANOSLEEP |
|
|
202 | # if _POSIX_C_SOURCE >= 199309L |
|
|
203 | # define EV_USE_NANOSLEEP 1 |
|
|
204 | # else |
177 | # define EV_USE_NANOSLEEP 0 |
205 | # define EV_USE_NANOSLEEP 0 |
|
|
206 | # endif |
178 | #endif |
207 | #endif |
179 | |
208 | |
180 | #ifndef EV_USE_SELECT |
209 | #ifndef EV_USE_SELECT |
181 | # define EV_USE_SELECT 1 |
210 | # define EV_USE_SELECT 1 |
182 | #endif |
211 | #endif |
… | |
… | |
235 | # else |
264 | # else |
236 | # define EV_USE_EVENTFD 0 |
265 | # define EV_USE_EVENTFD 0 |
237 | # endif |
266 | # endif |
238 | #endif |
267 | #endif |
239 | |
268 | |
|
|
269 | #if 0 /* debugging */ |
|
|
270 | # define EV_VERIFY 3 |
|
|
271 | # define EV_USE_4HEAP 1 |
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|
272 | # define EV_HEAP_CACHE_AT 1 |
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273 | #endif |
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|
274 | |
|
|
275 | #ifndef EV_VERIFY |
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|
276 | # define EV_VERIFY !EV_MINIMAL |
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|
277 | #endif |
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|
278 | |
240 | #ifndef EV_USE_4HEAP |
279 | #ifndef EV_USE_4HEAP |
241 | # define EV_USE_4HEAP !EV_MINIMAL |
280 | # define EV_USE_4HEAP !EV_MINIMAL |
242 | #endif |
281 | #endif |
243 | |
282 | |
244 | #ifndef EV_HEAP_CACHE_AT |
283 | #ifndef EV_HEAP_CACHE_AT |
… | |
… | |
267 | # include <sys/select.h> |
306 | # include <sys/select.h> |
268 | # endif |
307 | # endif |
269 | #endif |
308 | #endif |
270 | |
309 | |
271 | #if EV_USE_INOTIFY |
310 | #if EV_USE_INOTIFY |
|
|
311 | # include <sys/utsname.h> |
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|
312 | # include <sys/statfs.h> |
272 | # include <sys/inotify.h> |
313 | # include <sys/inotify.h> |
|
|
314 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
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315 | # ifndef IN_DONT_FOLLOW |
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316 | # undef EV_USE_INOTIFY |
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317 | # define EV_USE_INOTIFY 0 |
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318 | # endif |
273 | #endif |
319 | #endif |
274 | |
320 | |
275 | #if EV_SELECT_IS_WINSOCKET |
321 | #if EV_SELECT_IS_WINSOCKET |
276 | # include <winsock.h> |
322 | # include <winsock.h> |
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|
323 | #endif |
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324 | |
|
|
325 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
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|
326 | /* which makes programs even slower. might work on other unices, too. */ |
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327 | #if EV_USE_CLOCK_SYSCALL |
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328 | # include <syscall.h> |
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329 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
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330 | # undef EV_USE_MONOTONIC |
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331 | # define EV_USE_MONOTONIC 1 |
277 | #endif |
332 | #endif |
278 | |
333 | |
279 | #if EV_USE_EVENTFD |
334 | #if EV_USE_EVENTFD |
280 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
335 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
281 | # include <stdint.h> |
336 | # include <stdint.h> |
… | |
… | |
288 | # endif |
343 | # endif |
289 | #endif |
344 | #endif |
290 | |
345 | |
291 | /**/ |
346 | /**/ |
292 | |
347 | |
293 | /* undefined or zero: no verification done or available */ |
|
|
294 | /* 1 or higher: ev_loop_verify function available */ |
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|
295 | /* 2 or higher: ev_loop_verify is called frequently */ |
|
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296 | #define EV_VERIFY 1 |
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297 | |
|
|
298 | #if EV_VERIFY > 1 |
348 | #if EV_VERIFY >= 3 |
299 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
349 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
300 | #else |
350 | #else |
301 | # define EV_FREQUENT_CHECK do { } while (0) |
351 | # define EV_FREQUENT_CHECK do { } while (0) |
302 | #endif |
352 | #endif |
303 | |
353 | |
… | |
… | |
347 | typedef ev_watcher_time *WT; |
397 | typedef ev_watcher_time *WT; |
348 | |
398 | |
349 | #define ev_active(w) ((W)(w))->active |
399 | #define ev_active(w) ((W)(w))->active |
350 | #define ev_at(w) ((WT)(w))->at |
400 | #define ev_at(w) ((WT)(w))->at |
351 | |
401 | |
352 | #if EV_USE_MONOTONIC |
402 | #if EV_USE_REALTIME |
353 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
403 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
354 | /* giving it a reasonably high chance of working on typical architetcures */ |
404 | /* giving it a reasonably high chance of working on typical architetcures */ |
|
|
405 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
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|
406 | #endif |
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407 | |
|
|
408 | #if EV_USE_MONOTONIC |
355 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
409 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
356 | #endif |
410 | #endif |
357 | |
411 | |
358 | #ifdef _WIN32 |
412 | #ifdef _WIN32 |
359 | # include "ev_win32.c" |
413 | # include "ev_win32.c" |
… | |
… | |
368 | { |
422 | { |
369 | syserr_cb = cb; |
423 | syserr_cb = cb; |
370 | } |
424 | } |
371 | |
425 | |
372 | static void noinline |
426 | static void noinline |
373 | syserr (const char *msg) |
427 | ev_syserr (const char *msg) |
374 | { |
428 | { |
375 | if (!msg) |
429 | if (!msg) |
376 | msg = "(libev) system error"; |
430 | msg = "(libev) system error"; |
377 | |
431 | |
378 | if (syserr_cb) |
432 | if (syserr_cb) |
… | |
… | |
429 | typedef struct |
483 | typedef struct |
430 | { |
484 | { |
431 | WL head; |
485 | WL head; |
432 | unsigned char events; |
486 | unsigned char events; |
433 | unsigned char reify; |
487 | unsigned char reify; |
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|
488 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
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489 | unsigned char unused; |
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490 | #if EV_USE_EPOLL |
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491 | unsigned int egen; /* generation counter to counter epoll bugs */ |
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492 | #endif |
434 | #if EV_SELECT_IS_WINSOCKET |
493 | #if EV_SELECT_IS_WINSOCKET |
435 | SOCKET handle; |
494 | SOCKET handle; |
436 | #endif |
495 | #endif |
437 | } ANFD; |
496 | } ANFD; |
438 | |
497 | |
… | |
… | |
498 | |
557 | |
499 | ev_tstamp |
558 | ev_tstamp |
500 | ev_time (void) |
559 | ev_time (void) |
501 | { |
560 | { |
502 | #if EV_USE_REALTIME |
561 | #if EV_USE_REALTIME |
|
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562 | if (expect_true (have_realtime)) |
|
|
563 | { |
503 | struct timespec ts; |
564 | struct timespec ts; |
504 | clock_gettime (CLOCK_REALTIME, &ts); |
565 | clock_gettime (CLOCK_REALTIME, &ts); |
505 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
566 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
506 | #else |
567 | } |
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|
568 | #endif |
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569 | |
507 | struct timeval tv; |
570 | struct timeval tv; |
508 | gettimeofday (&tv, 0); |
571 | gettimeofday (&tv, 0); |
509 | return tv.tv_sec + tv.tv_usec * 1e-6; |
572 | return tv.tv_sec + tv.tv_usec * 1e-6; |
510 | #endif |
|
|
511 | } |
573 | } |
512 | |
574 | |
513 | ev_tstamp inline_size |
575 | inline_size ev_tstamp |
514 | get_clock (void) |
576 | get_clock (void) |
515 | { |
577 | { |
516 | #if EV_USE_MONOTONIC |
578 | #if EV_USE_MONOTONIC |
517 | if (expect_true (have_monotonic)) |
579 | if (expect_true (have_monotonic)) |
518 | { |
580 | { |
… | |
… | |
551 | struct timeval tv; |
613 | struct timeval tv; |
552 | |
614 | |
553 | tv.tv_sec = (time_t)delay; |
615 | tv.tv_sec = (time_t)delay; |
554 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
616 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
555 | |
617 | |
|
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618 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
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619 | /* somehting nto guaranteed by newer posix versions, but guaranteed */ |
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620 | /* by older ones */ |
556 | select (0, 0, 0, 0, &tv); |
621 | select (0, 0, 0, 0, &tv); |
557 | #endif |
622 | #endif |
558 | } |
623 | } |
559 | } |
624 | } |
560 | |
625 | |
561 | /*****************************************************************************/ |
626 | /*****************************************************************************/ |
562 | |
627 | |
563 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
628 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
564 | |
629 | |
565 | int inline_size |
630 | inline_size int |
566 | array_nextsize (int elem, int cur, int cnt) |
631 | array_nextsize (int elem, int cur, int cnt) |
567 | { |
632 | { |
568 | int ncur = cur + 1; |
633 | int ncur = cur + 1; |
569 | |
634 | |
570 | do |
635 | do |
… | |
… | |
587 | array_realloc (int elem, void *base, int *cur, int cnt) |
652 | array_realloc (int elem, void *base, int *cur, int cnt) |
588 | { |
653 | { |
589 | *cur = array_nextsize (elem, *cur, cnt); |
654 | *cur = array_nextsize (elem, *cur, cnt); |
590 | return ev_realloc (base, elem * *cur); |
655 | return ev_realloc (base, elem * *cur); |
591 | } |
656 | } |
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657 | |
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658 | #define array_init_zero(base,count) \ |
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659 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
592 | |
660 | |
593 | #define array_needsize(type,base,cur,cnt,init) \ |
661 | #define array_needsize(type,base,cur,cnt,init) \ |
594 | if (expect_false ((cnt) > (cur))) \ |
662 | if (expect_false ((cnt) > (cur))) \ |
595 | { \ |
663 | { \ |
596 | int ocur_ = (cur); \ |
664 | int ocur_ = (cur); \ |
… | |
… | |
608 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
676 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
609 | } |
677 | } |
610 | #endif |
678 | #endif |
611 | |
679 | |
612 | #define array_free(stem, idx) \ |
680 | #define array_free(stem, idx) \ |
613 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
681 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
614 | |
682 | |
615 | /*****************************************************************************/ |
683 | /*****************************************************************************/ |
616 | |
684 | |
617 | void noinline |
685 | void noinline |
618 | ev_feed_event (EV_P_ void *w, int revents) |
686 | ev_feed_event (EV_P_ void *w, int revents) |
… | |
… | |
629 | pendings [pri][w_->pending - 1].w = w_; |
697 | pendings [pri][w_->pending - 1].w = w_; |
630 | pendings [pri][w_->pending - 1].events = revents; |
698 | pendings [pri][w_->pending - 1].events = revents; |
631 | } |
699 | } |
632 | } |
700 | } |
633 | |
701 | |
634 | void inline_speed |
702 | inline_speed void |
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703 | feed_reverse (EV_P_ W w) |
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704 | { |
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705 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
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706 | rfeeds [rfeedcnt++] = w; |
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707 | } |
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708 | |
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709 | inline_size void |
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710 | feed_reverse_done (EV_P_ int revents) |
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711 | { |
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712 | do |
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713 | ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents); |
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714 | while (rfeedcnt); |
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715 | } |
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716 | |
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717 | inline_speed void |
635 | queue_events (EV_P_ W *events, int eventcnt, int type) |
718 | queue_events (EV_P_ W *events, int eventcnt, int type) |
636 | { |
719 | { |
637 | int i; |
720 | int i; |
638 | |
721 | |
639 | for (i = 0; i < eventcnt; ++i) |
722 | for (i = 0; i < eventcnt; ++i) |
640 | ev_feed_event (EV_A_ events [i], type); |
723 | ev_feed_event (EV_A_ events [i], type); |
641 | } |
724 | } |
642 | |
725 | |
643 | /*****************************************************************************/ |
726 | /*****************************************************************************/ |
644 | |
727 | |
645 | void inline_size |
728 | inline_speed void |
646 | anfds_init (ANFD *base, int count) |
|
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647 | { |
|
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648 | while (count--) |
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649 | { |
|
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650 | base->head = 0; |
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651 | base->events = EV_NONE; |
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652 | base->reify = 0; |
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653 | |
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654 | ++base; |
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655 | } |
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656 | } |
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657 | |
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658 | void inline_speed |
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659 | fd_event (EV_P_ int fd, int revents) |
729 | fd_event (EV_P_ int fd, int revents) |
660 | { |
730 | { |
661 | ANFD *anfd = anfds + fd; |
731 | ANFD *anfd = anfds + fd; |
662 | ev_io *w; |
732 | ev_io *w; |
663 | |
733 | |
… | |
… | |
675 | { |
745 | { |
676 | if (fd >= 0 && fd < anfdmax) |
746 | if (fd >= 0 && fd < anfdmax) |
677 | fd_event (EV_A_ fd, revents); |
747 | fd_event (EV_A_ fd, revents); |
678 | } |
748 | } |
679 | |
749 | |
680 | void inline_size |
750 | inline_size void |
681 | fd_reify (EV_P) |
751 | fd_reify (EV_P) |
682 | { |
752 | { |
683 | int i; |
753 | int i; |
684 | |
754 | |
685 | for (i = 0; i < fdchangecnt; ++i) |
755 | for (i = 0; i < fdchangecnt; ++i) |
… | |
… | |
694 | events |= (unsigned char)w->events; |
764 | events |= (unsigned char)w->events; |
695 | |
765 | |
696 | #if EV_SELECT_IS_WINSOCKET |
766 | #if EV_SELECT_IS_WINSOCKET |
697 | if (events) |
767 | if (events) |
698 | { |
768 | { |
699 | unsigned long argp; |
769 | unsigned long arg; |
700 | #ifdef EV_FD_TO_WIN32_HANDLE |
770 | #ifdef EV_FD_TO_WIN32_HANDLE |
701 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
771 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
702 | #else |
772 | #else |
703 | anfd->handle = _get_osfhandle (fd); |
773 | anfd->handle = _get_osfhandle (fd); |
704 | #endif |
774 | #endif |
705 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
775 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
706 | } |
776 | } |
707 | #endif |
777 | #endif |
708 | |
778 | |
709 | { |
779 | { |
710 | unsigned char o_events = anfd->events; |
780 | unsigned char o_events = anfd->events; |
711 | unsigned char o_reify = anfd->reify; |
781 | unsigned char o_reify = anfd->reify; |
712 | |
782 | |
713 | anfd->reify = 0; |
783 | anfd->reify = 0; |
714 | anfd->events = events; |
784 | anfd->events = events; |
715 | |
785 | |
716 | if (o_events != events || o_reify & EV_IOFDSET) |
786 | if (o_events != events || o_reify & EV__IOFDSET) |
717 | backend_modify (EV_A_ fd, o_events, events); |
787 | backend_modify (EV_A_ fd, o_events, events); |
718 | } |
788 | } |
719 | } |
789 | } |
720 | |
790 | |
721 | fdchangecnt = 0; |
791 | fdchangecnt = 0; |
722 | } |
792 | } |
723 | |
793 | |
724 | void inline_size |
794 | inline_size void |
725 | fd_change (EV_P_ int fd, int flags) |
795 | fd_change (EV_P_ int fd, int flags) |
726 | { |
796 | { |
727 | unsigned char reify = anfds [fd].reify; |
797 | unsigned char reify = anfds [fd].reify; |
728 | anfds [fd].reify |= flags; |
798 | anfds [fd].reify |= flags; |
729 | |
799 | |
… | |
… | |
733 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
803 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
734 | fdchanges [fdchangecnt - 1] = fd; |
804 | fdchanges [fdchangecnt - 1] = fd; |
735 | } |
805 | } |
736 | } |
806 | } |
737 | |
807 | |
738 | void inline_speed |
808 | inline_speed void |
739 | fd_kill (EV_P_ int fd) |
809 | fd_kill (EV_P_ int fd) |
740 | { |
810 | { |
741 | ev_io *w; |
811 | ev_io *w; |
742 | |
812 | |
743 | while ((w = (ev_io *)anfds [fd].head)) |
813 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
745 | ev_io_stop (EV_A_ w); |
815 | ev_io_stop (EV_A_ w); |
746 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
816 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
747 | } |
817 | } |
748 | } |
818 | } |
749 | |
819 | |
750 | int inline_size |
820 | inline_size int |
751 | fd_valid (int fd) |
821 | fd_valid (int fd) |
752 | { |
822 | { |
753 | #ifdef _WIN32 |
823 | #ifdef _WIN32 |
754 | return _get_osfhandle (fd) != -1; |
824 | return _get_osfhandle (fd) != -1; |
755 | #else |
825 | #else |
… | |
… | |
763 | { |
833 | { |
764 | int fd; |
834 | int fd; |
765 | |
835 | |
766 | for (fd = 0; fd < anfdmax; ++fd) |
836 | for (fd = 0; fd < anfdmax; ++fd) |
767 | if (anfds [fd].events) |
837 | if (anfds [fd].events) |
768 | if (!fd_valid (fd) == -1 && errno == EBADF) |
838 | if (!fd_valid (fd) && errno == EBADF) |
769 | fd_kill (EV_A_ fd); |
839 | fd_kill (EV_A_ fd); |
770 | } |
840 | } |
771 | |
841 | |
772 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
842 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
773 | static void noinline |
843 | static void noinline |
… | |
… | |
791 | |
861 | |
792 | for (fd = 0; fd < anfdmax; ++fd) |
862 | for (fd = 0; fd < anfdmax; ++fd) |
793 | if (anfds [fd].events) |
863 | if (anfds [fd].events) |
794 | { |
864 | { |
795 | anfds [fd].events = 0; |
865 | anfds [fd].events = 0; |
|
|
866 | anfds [fd].emask = 0; |
796 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
867 | fd_change (EV_A_ fd, EV__IOFDSET | 1); |
797 | } |
868 | } |
798 | } |
869 | } |
799 | |
870 | |
800 | /*****************************************************************************/ |
871 | /*****************************************************************************/ |
801 | |
872 | |
… | |
… | |
817 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
888 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
818 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
889 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
819 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
890 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
820 | |
891 | |
821 | /* away from the root */ |
892 | /* away from the root */ |
822 | void inline_speed |
893 | inline_speed void |
823 | downheap (ANHE *heap, int N, int k) |
894 | downheap (ANHE *heap, int N, int k) |
824 | { |
895 | { |
825 | ANHE he = heap [k]; |
896 | ANHE he = heap [k]; |
826 | ANHE *E = heap + N + HEAP0; |
897 | ANHE *E = heap + N + HEAP0; |
827 | |
898 | |
… | |
… | |
867 | #define HEAP0 1 |
938 | #define HEAP0 1 |
868 | #define HPARENT(k) ((k) >> 1) |
939 | #define HPARENT(k) ((k) >> 1) |
869 | #define UPHEAP_DONE(p,k) (!(p)) |
940 | #define UPHEAP_DONE(p,k) (!(p)) |
870 | |
941 | |
871 | /* away from the root */ |
942 | /* away from the root */ |
872 | void inline_speed |
943 | inline_speed void |
873 | downheap (ANHE *heap, int N, int k) |
944 | downheap (ANHE *heap, int N, int k) |
874 | { |
945 | { |
875 | ANHE he = heap [k]; |
946 | ANHE he = heap [k]; |
876 | |
947 | |
877 | for (;;) |
948 | for (;;) |
… | |
… | |
897 | ev_active (ANHE_w (he)) = k; |
968 | ev_active (ANHE_w (he)) = k; |
898 | } |
969 | } |
899 | #endif |
970 | #endif |
900 | |
971 | |
901 | /* towards the root */ |
972 | /* towards the root */ |
902 | void inline_speed |
973 | inline_speed void |
903 | upheap (ANHE *heap, int k) |
974 | upheap (ANHE *heap, int k) |
904 | { |
975 | { |
905 | ANHE he = heap [k]; |
976 | ANHE he = heap [k]; |
906 | |
977 | |
907 | for (;;) |
978 | for (;;) |
… | |
… | |
918 | |
989 | |
919 | heap [k] = he; |
990 | heap [k] = he; |
920 | ev_active (ANHE_w (he)) = k; |
991 | ev_active (ANHE_w (he)) = k; |
921 | } |
992 | } |
922 | |
993 | |
923 | void inline_size |
994 | inline_size void |
924 | adjustheap (ANHE *heap, int N, int k) |
995 | adjustheap (ANHE *heap, int N, int k) |
925 | { |
996 | { |
926 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
997 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
927 | upheap (heap, k); |
998 | upheap (heap, k); |
928 | else |
999 | else |
929 | downheap (heap, N, k); |
1000 | downheap (heap, N, k); |
930 | } |
1001 | } |
931 | |
1002 | |
932 | /* rebuild the heap: this function is used only once and executed rarely */ |
1003 | /* rebuild the heap: this function is used only once and executed rarely */ |
933 | void inline_size |
1004 | inline_size void |
934 | reheap (ANHE *heap, int N) |
1005 | reheap (ANHE *heap, int N) |
935 | { |
1006 | { |
936 | int i; |
1007 | int i; |
|
|
1008 | |
937 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
1009 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
938 | /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */ |
1010 | /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */ |
939 | for (i = 0; i < N; ++i) |
1011 | for (i = 0; i < N; ++i) |
940 | upheap (heap, i + HEAP0); |
1012 | upheap (heap, i + HEAP0); |
941 | } |
1013 | } |
942 | |
1014 | |
943 | #if EV_VERIFY |
|
|
944 | static void |
|
|
945 | checkheap (ANHE *heap, int N) |
|
|
946 | { |
|
|
947 | int i; |
|
|
948 | |
|
|
949 | for (i = HEAP0; i < N + HEAP0; ++i) |
|
|
950 | { |
|
|
951 | assert (("active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
|
|
952 | assert (("heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
|
|
953 | assert (("heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
|
|
954 | } |
|
|
955 | } |
|
|
956 | #endif |
|
|
957 | |
|
|
958 | /*****************************************************************************/ |
1015 | /*****************************************************************************/ |
959 | |
1016 | |
960 | typedef struct |
1017 | typedef struct |
961 | { |
1018 | { |
962 | WL head; |
1019 | WL head; |
… | |
… | |
966 | static ANSIG *signals; |
1023 | static ANSIG *signals; |
967 | static int signalmax; |
1024 | static int signalmax; |
968 | |
1025 | |
969 | static EV_ATOMIC_T gotsig; |
1026 | static EV_ATOMIC_T gotsig; |
970 | |
1027 | |
971 | void inline_size |
|
|
972 | signals_init (ANSIG *base, int count) |
|
|
973 | { |
|
|
974 | while (count--) |
|
|
975 | { |
|
|
976 | base->head = 0; |
|
|
977 | base->gotsig = 0; |
|
|
978 | |
|
|
979 | ++base; |
|
|
980 | } |
|
|
981 | } |
|
|
982 | |
|
|
983 | /*****************************************************************************/ |
1028 | /*****************************************************************************/ |
984 | |
1029 | |
985 | void inline_speed |
1030 | inline_speed void |
986 | fd_intern (int fd) |
1031 | fd_intern (int fd) |
987 | { |
1032 | { |
988 | #ifdef _WIN32 |
1033 | #ifdef _WIN32 |
989 | int arg = 1; |
1034 | unsigned long arg = 1; |
990 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
1035 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
991 | #else |
1036 | #else |
992 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
1037 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
993 | fcntl (fd, F_SETFL, O_NONBLOCK); |
1038 | fcntl (fd, F_SETFL, O_NONBLOCK); |
994 | #endif |
1039 | #endif |
… | |
… | |
1008 | } |
1053 | } |
1009 | else |
1054 | else |
1010 | #endif |
1055 | #endif |
1011 | { |
1056 | { |
1012 | while (pipe (evpipe)) |
1057 | while (pipe (evpipe)) |
1013 | syserr ("(libev) error creating signal/async pipe"); |
1058 | ev_syserr ("(libev) error creating signal/async pipe"); |
1014 | |
1059 | |
1015 | fd_intern (evpipe [0]); |
1060 | fd_intern (evpipe [0]); |
1016 | fd_intern (evpipe [1]); |
1061 | fd_intern (evpipe [1]); |
1017 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
1062 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
1018 | } |
1063 | } |
… | |
… | |
1020 | ev_io_start (EV_A_ &pipeev); |
1065 | ev_io_start (EV_A_ &pipeev); |
1021 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1066 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1022 | } |
1067 | } |
1023 | } |
1068 | } |
1024 | |
1069 | |
1025 | void inline_size |
1070 | inline_size void |
1026 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1071 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1027 | { |
1072 | { |
1028 | if (!*flag) |
1073 | if (!*flag) |
1029 | { |
1074 | { |
1030 | int old_errno = errno; /* save errno because write might clobber it */ |
1075 | int old_errno = errno; /* save errno because write might clobber it */ |
… | |
… | |
1108 | ev_feed_signal_event (EV_P_ int signum) |
1153 | ev_feed_signal_event (EV_P_ int signum) |
1109 | { |
1154 | { |
1110 | WL w; |
1155 | WL w; |
1111 | |
1156 | |
1112 | #if EV_MULTIPLICITY |
1157 | #if EV_MULTIPLICITY |
1113 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1158 | assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1114 | #endif |
1159 | #endif |
1115 | |
1160 | |
1116 | --signum; |
1161 | --signum; |
1117 | |
1162 | |
1118 | if (signum < 0 || signum >= signalmax) |
1163 | if (signum < 0 || signum >= signalmax) |
… | |
… | |
1134 | |
1179 | |
1135 | #ifndef WIFCONTINUED |
1180 | #ifndef WIFCONTINUED |
1136 | # define WIFCONTINUED(status) 0 |
1181 | # define WIFCONTINUED(status) 0 |
1137 | #endif |
1182 | #endif |
1138 | |
1183 | |
1139 | void inline_speed |
1184 | inline_speed void |
1140 | child_reap (EV_P_ int chain, int pid, int status) |
1185 | child_reap (EV_P_ int chain, int pid, int status) |
1141 | { |
1186 | { |
1142 | ev_child *w; |
1187 | ev_child *w; |
1143 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1188 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1144 | |
1189 | |
… | |
… | |
1247 | /* kqueue is borked on everything but netbsd apparently */ |
1292 | /* kqueue is borked on everything but netbsd apparently */ |
1248 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1293 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1249 | flags &= ~EVBACKEND_KQUEUE; |
1294 | flags &= ~EVBACKEND_KQUEUE; |
1250 | #endif |
1295 | #endif |
1251 | #ifdef __APPLE__ |
1296 | #ifdef __APPLE__ |
1252 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
1297 | /* only select works correctly on that "unix-certified" platform */ |
1253 | flags &= ~EVBACKEND_POLL; |
1298 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
|
|
1299 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
1254 | #endif |
1300 | #endif |
1255 | |
1301 | |
1256 | return flags; |
1302 | return flags; |
1257 | } |
1303 | } |
1258 | |
1304 | |
… | |
… | |
1295 | static void noinline |
1341 | static void noinline |
1296 | loop_init (EV_P_ unsigned int flags) |
1342 | loop_init (EV_P_ unsigned int flags) |
1297 | { |
1343 | { |
1298 | if (!backend) |
1344 | if (!backend) |
1299 | { |
1345 | { |
|
|
1346 | #if EV_USE_REALTIME |
|
|
1347 | if (!have_realtime) |
|
|
1348 | { |
|
|
1349 | struct timespec ts; |
|
|
1350 | |
|
|
1351 | if (!clock_gettime (CLOCK_REALTIME, &ts)) |
|
|
1352 | have_realtime = 1; |
|
|
1353 | } |
|
|
1354 | #endif |
|
|
1355 | |
1300 | #if EV_USE_MONOTONIC |
1356 | #if EV_USE_MONOTONIC |
|
|
1357 | if (!have_monotonic) |
1301 | { |
1358 | { |
1302 | struct timespec ts; |
1359 | struct timespec ts; |
|
|
1360 | |
1303 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1361 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1304 | have_monotonic = 1; |
1362 | have_monotonic = 1; |
1305 | } |
1363 | } |
1306 | #endif |
1364 | #endif |
1307 | |
1365 | |
1308 | ev_rt_now = ev_time (); |
1366 | ev_rt_now = ev_time (); |
1309 | mn_now = get_clock (); |
1367 | mn_now = get_clock (); |
1310 | now_floor = mn_now; |
1368 | now_floor = mn_now; |
… | |
… | |
1409 | } |
1467 | } |
1410 | |
1468 | |
1411 | ev_free (anfds); anfdmax = 0; |
1469 | ev_free (anfds); anfdmax = 0; |
1412 | |
1470 | |
1413 | /* have to use the microsoft-never-gets-it-right macro */ |
1471 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
1472 | array_free (rfeed, EMPTY); |
1414 | array_free (fdchange, EMPTY); |
1473 | array_free (fdchange, EMPTY); |
1415 | array_free (timer, EMPTY); |
1474 | array_free (timer, EMPTY); |
1416 | #if EV_PERIODIC_ENABLE |
1475 | #if EV_PERIODIC_ENABLE |
1417 | array_free (periodic, EMPTY); |
1476 | array_free (periodic, EMPTY); |
1418 | #endif |
1477 | #endif |
… | |
… | |
1427 | |
1486 | |
1428 | backend = 0; |
1487 | backend = 0; |
1429 | } |
1488 | } |
1430 | |
1489 | |
1431 | #if EV_USE_INOTIFY |
1490 | #if EV_USE_INOTIFY |
1432 | void inline_size infy_fork (EV_P); |
1491 | inline_size void infy_fork (EV_P); |
1433 | #endif |
1492 | #endif |
1434 | |
1493 | |
1435 | void inline_size |
1494 | inline_size void |
1436 | loop_fork (EV_P) |
1495 | loop_fork (EV_P) |
1437 | { |
1496 | { |
1438 | #if EV_USE_PORT |
1497 | #if EV_USE_PORT |
1439 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1498 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1440 | #endif |
1499 | #endif |
… | |
… | |
1478 | |
1537 | |
1479 | postfork = 0; |
1538 | postfork = 0; |
1480 | } |
1539 | } |
1481 | |
1540 | |
1482 | #if EV_MULTIPLICITY |
1541 | #if EV_MULTIPLICITY |
|
|
1542 | |
1483 | struct ev_loop * |
1543 | struct ev_loop * |
1484 | ev_loop_new (unsigned int flags) |
1544 | ev_loop_new (unsigned int flags) |
1485 | { |
1545 | { |
1486 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1546 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1487 | |
1547 | |
… | |
… | |
1507 | { |
1567 | { |
1508 | postfork = 1; /* must be in line with ev_default_fork */ |
1568 | postfork = 1; /* must be in line with ev_default_fork */ |
1509 | } |
1569 | } |
1510 | |
1570 | |
1511 | #if EV_VERIFY |
1571 | #if EV_VERIFY |
1512 | static void |
1572 | static void noinline |
|
|
1573 | verify_watcher (EV_P_ W w) |
|
|
1574 | { |
|
|
1575 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
|
|
1576 | |
|
|
1577 | if (w->pending) |
|
|
1578 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
|
|
1579 | } |
|
|
1580 | |
|
|
1581 | static void noinline |
|
|
1582 | verify_heap (EV_P_ ANHE *heap, int N) |
|
|
1583 | { |
|
|
1584 | int i; |
|
|
1585 | |
|
|
1586 | for (i = HEAP0; i < N + HEAP0; ++i) |
|
|
1587 | { |
|
|
1588 | assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
|
|
1589 | assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
|
|
1590 | assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
|
|
1591 | |
|
|
1592 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
|
|
1593 | } |
|
|
1594 | } |
|
|
1595 | |
|
|
1596 | static void noinline |
1513 | array_check (W **ws, int cnt) |
1597 | array_verify (EV_P_ W *ws, int cnt) |
1514 | { |
1598 | { |
1515 | while (cnt--) |
1599 | while (cnt--) |
|
|
1600 | { |
1516 | assert (("active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
1601 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
|
|
1602 | verify_watcher (EV_A_ ws [cnt]); |
|
|
1603 | } |
1517 | } |
1604 | } |
|
|
1605 | #endif |
1518 | |
1606 | |
1519 | static void |
1607 | void |
1520 | ev_loop_verify (EV_P) |
1608 | ev_loop_verify (EV_P) |
1521 | { |
1609 | { |
|
|
1610 | #if EV_VERIFY |
1522 | int i; |
1611 | int i; |
|
|
1612 | WL w; |
1523 | |
1613 | |
|
|
1614 | assert (activecnt >= -1); |
|
|
1615 | |
|
|
1616 | assert (fdchangemax >= fdchangecnt); |
|
|
1617 | for (i = 0; i < fdchangecnt; ++i) |
|
|
1618 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
|
|
1619 | |
|
|
1620 | assert (anfdmax >= 0); |
|
|
1621 | for (i = 0; i < anfdmax; ++i) |
|
|
1622 | for (w = anfds [i].head; w; w = w->next) |
|
|
1623 | { |
|
|
1624 | verify_watcher (EV_A_ (W)w); |
|
|
1625 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
|
|
1626 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
|
|
1627 | } |
|
|
1628 | |
|
|
1629 | assert (timermax >= timercnt); |
1524 | checkheap (timers, timercnt); |
1630 | verify_heap (EV_A_ timers, timercnt); |
|
|
1631 | |
1525 | #if EV_PERIODIC_ENABLE |
1632 | #if EV_PERIODIC_ENABLE |
|
|
1633 | assert (periodicmax >= periodiccnt); |
1526 | checkheap (periodics, periodiccnt); |
1634 | verify_heap (EV_A_ periodics, periodiccnt); |
1527 | #endif |
1635 | #endif |
1528 | |
1636 | |
|
|
1637 | for (i = NUMPRI; i--; ) |
|
|
1638 | { |
|
|
1639 | assert (pendingmax [i] >= pendingcnt [i]); |
1529 | #if EV_IDLE_ENABLE |
1640 | #if EV_IDLE_ENABLE |
1530 | for (i = NUMPRI; i--; ) |
1641 | assert (idleall >= 0); |
|
|
1642 | assert (idlemax [i] >= idlecnt [i]); |
1531 | array_check ((W **)idles [i], idlecnt [i]); |
1643 | array_verify (EV_A_ (W *)idles [i], idlecnt [i]); |
1532 | #endif |
1644 | #endif |
|
|
1645 | } |
|
|
1646 | |
1533 | #if EV_FORK_ENABLE |
1647 | #if EV_FORK_ENABLE |
|
|
1648 | assert (forkmax >= forkcnt); |
1534 | array_check ((W **)forks, forkcnt); |
1649 | array_verify (EV_A_ (W *)forks, forkcnt); |
1535 | #endif |
1650 | #endif |
1536 | array_check ((W **)prepares, preparecnt); |
1651 | |
1537 | array_check ((W **)checks, checkcnt); |
|
|
1538 | #if EV_ASYNC_ENABLE |
1652 | #if EV_ASYNC_ENABLE |
|
|
1653 | assert (asyncmax >= asynccnt); |
1539 | array_check ((W **)asyncs, asynccnt); |
1654 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
|
|
1655 | #endif |
|
|
1656 | |
|
|
1657 | assert (preparemax >= preparecnt); |
|
|
1658 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
1659 | |
|
|
1660 | assert (checkmax >= checkcnt); |
|
|
1661 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
1662 | |
|
|
1663 | # if 0 |
|
|
1664 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1665 | for (signum = signalmax; signum--; ) if (signals [signum].gotsig) |
1540 | #endif |
1666 | # endif |
1541 | } |
|
|
1542 | #endif |
1667 | #endif |
|
|
1668 | } |
1543 | |
1669 | |
1544 | #endif |
1670 | #endif /* multiplicity */ |
1545 | |
1671 | |
1546 | #if EV_MULTIPLICITY |
1672 | #if EV_MULTIPLICITY |
1547 | struct ev_loop * |
1673 | struct ev_loop * |
1548 | ev_default_loop_init (unsigned int flags) |
1674 | ev_default_loop_init (unsigned int flags) |
1549 | #else |
1675 | #else |
… | |
… | |
1582 | { |
1708 | { |
1583 | #if EV_MULTIPLICITY |
1709 | #if EV_MULTIPLICITY |
1584 | struct ev_loop *loop = ev_default_loop_ptr; |
1710 | struct ev_loop *loop = ev_default_loop_ptr; |
1585 | #endif |
1711 | #endif |
1586 | |
1712 | |
|
|
1713 | ev_default_loop_ptr = 0; |
|
|
1714 | |
1587 | #ifndef _WIN32 |
1715 | #ifndef _WIN32 |
1588 | ev_ref (EV_A); /* child watcher */ |
1716 | ev_ref (EV_A); /* child watcher */ |
1589 | ev_signal_stop (EV_A_ &childev); |
1717 | ev_signal_stop (EV_A_ &childev); |
1590 | #endif |
1718 | #endif |
1591 | |
1719 | |
… | |
… | |
1597 | { |
1725 | { |
1598 | #if EV_MULTIPLICITY |
1726 | #if EV_MULTIPLICITY |
1599 | struct ev_loop *loop = ev_default_loop_ptr; |
1727 | struct ev_loop *loop = ev_default_loop_ptr; |
1600 | #endif |
1728 | #endif |
1601 | |
1729 | |
1602 | if (backend) |
|
|
1603 | postfork = 1; /* must be in line with ev_loop_fork */ |
1730 | postfork = 1; /* must be in line with ev_loop_fork */ |
1604 | } |
1731 | } |
1605 | |
1732 | |
1606 | /*****************************************************************************/ |
1733 | /*****************************************************************************/ |
1607 | |
1734 | |
1608 | void |
1735 | void |
1609 | ev_invoke (EV_P_ void *w, int revents) |
1736 | ev_invoke (EV_P_ void *w, int revents) |
1610 | { |
1737 | { |
1611 | EV_CB_INVOKE ((W)w, revents); |
1738 | EV_CB_INVOKE ((W)w, revents); |
1612 | } |
1739 | } |
1613 | |
1740 | |
1614 | void inline_speed |
1741 | inline_speed void |
1615 | call_pending (EV_P) |
1742 | call_pending (EV_P) |
1616 | { |
1743 | { |
1617 | int pri; |
1744 | int pri; |
1618 | |
|
|
1619 | EV_FREQUENT_CHECK; |
|
|
1620 | |
1745 | |
1621 | for (pri = NUMPRI; pri--; ) |
1746 | for (pri = NUMPRI; pri--; ) |
1622 | while (pendingcnt [pri]) |
1747 | while (pendingcnt [pri]) |
1623 | { |
1748 | { |
1624 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1749 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1625 | |
1750 | |
1626 | if (expect_true (p->w)) |
1751 | if (expect_true (p->w)) |
1627 | { |
1752 | { |
1628 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
1753 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
1629 | |
1754 | |
1630 | p->w->pending = 0; |
1755 | p->w->pending = 0; |
1631 | EV_CB_INVOKE (p->w, p->events); |
1756 | EV_CB_INVOKE (p->w, p->events); |
|
|
1757 | EV_FREQUENT_CHECK; |
1632 | } |
1758 | } |
1633 | } |
1759 | } |
1634 | |
|
|
1635 | EV_FREQUENT_CHECK; |
|
|
1636 | } |
1760 | } |
1637 | |
1761 | |
1638 | #if EV_IDLE_ENABLE |
1762 | #if EV_IDLE_ENABLE |
1639 | void inline_size |
1763 | inline_size void |
1640 | idle_reify (EV_P) |
1764 | idle_reify (EV_P) |
1641 | { |
1765 | { |
1642 | if (expect_false (idleall)) |
1766 | if (expect_false (idleall)) |
1643 | { |
1767 | { |
1644 | int pri; |
1768 | int pri; |
… | |
… | |
1656 | } |
1780 | } |
1657 | } |
1781 | } |
1658 | } |
1782 | } |
1659 | #endif |
1783 | #endif |
1660 | |
1784 | |
1661 | void inline_size |
1785 | inline_size void |
1662 | timers_reify (EV_P) |
1786 | timers_reify (EV_P) |
1663 | { |
1787 | { |
1664 | EV_FREQUENT_CHECK; |
1788 | EV_FREQUENT_CHECK; |
1665 | |
1789 | |
1666 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
1790 | if (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
1667 | { |
1791 | { |
1668 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
1792 | do |
1669 | |
|
|
1670 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1671 | |
|
|
1672 | /* first reschedule or stop timer */ |
|
|
1673 | if (w->repeat) |
|
|
1674 | { |
1793 | { |
|
|
1794 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
|
|
1795 | |
|
|
1796 | /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1797 | |
|
|
1798 | /* first reschedule or stop timer */ |
|
|
1799 | if (w->repeat) |
|
|
1800 | { |
1675 | ev_at (w) += w->repeat; |
1801 | ev_at (w) += w->repeat; |
1676 | if (ev_at (w) < mn_now) |
1802 | if (ev_at (w) < mn_now) |
1677 | ev_at (w) = mn_now; |
1803 | ev_at (w) = mn_now; |
1678 | |
1804 | |
1679 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1805 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1680 | |
1806 | |
1681 | ANHE_at_cache (timers [HEAP0]); |
1807 | ANHE_at_cache (timers [HEAP0]); |
1682 | downheap (timers, timercnt, HEAP0); |
1808 | downheap (timers, timercnt, HEAP0); |
|
|
1809 | } |
|
|
1810 | else |
|
|
1811 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1812 | |
|
|
1813 | EV_FREQUENT_CHECK; |
|
|
1814 | feed_reverse (EV_A_ (W)w); |
1683 | } |
1815 | } |
1684 | else |
1816 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
1685 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1686 | |
1817 | |
1687 | EV_FREQUENT_CHECK; |
|
|
1688 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
1818 | feed_reverse_done (EV_A_ EV_TIMEOUT); |
1689 | } |
1819 | } |
1690 | } |
1820 | } |
1691 | |
1821 | |
1692 | #if EV_PERIODIC_ENABLE |
1822 | #if EV_PERIODIC_ENABLE |
1693 | void inline_size |
1823 | inline_size void |
1694 | periodics_reify (EV_P) |
1824 | periodics_reify (EV_P) |
1695 | { |
1825 | { |
1696 | EV_FREQUENT_CHECK; |
1826 | EV_FREQUENT_CHECK; |
|
|
1827 | |
1697 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
1828 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
1698 | { |
1829 | { |
1699 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
1830 | int feed_count = 0; |
1700 | |
1831 | |
1701 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
1832 | do |
1702 | |
|
|
1703 | /* first reschedule or stop timer */ |
|
|
1704 | if (w->reschedule_cb) |
|
|
1705 | { |
1833 | { |
|
|
1834 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
|
|
1835 | |
|
|
1836 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
1837 | |
|
|
1838 | /* first reschedule or stop timer */ |
|
|
1839 | if (w->reschedule_cb) |
|
|
1840 | { |
1706 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1841 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1707 | |
1842 | |
1708 | assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
1843 | assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
1709 | |
1844 | |
1710 | ANHE_at_cache (periodics [HEAP0]); |
1845 | ANHE_at_cache (periodics [HEAP0]); |
1711 | downheap (periodics, periodiccnt, HEAP0); |
1846 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1847 | } |
|
|
1848 | else if (w->interval) |
|
|
1849 | { |
|
|
1850 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1851 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
1852 | /* this might happen because of floating point inexactness */ |
|
|
1853 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
1854 | { |
|
|
1855 | ev_at (w) += w->interval; |
|
|
1856 | |
|
|
1857 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
1858 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
1859 | /* has effectively asked to get triggered more often than possible */ |
|
|
1860 | if (ev_at (w) < ev_rt_now) |
|
|
1861 | ev_at (w) = ev_rt_now; |
|
|
1862 | } |
|
|
1863 | |
|
|
1864 | ANHE_at_cache (periodics [HEAP0]); |
|
|
1865 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1866 | } |
|
|
1867 | else |
|
|
1868 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1869 | |
1712 | EV_FREQUENT_CHECK; |
1870 | EV_FREQUENT_CHECK; |
|
|
1871 | feed_reverse (EV_A_ (W)w); |
1713 | } |
1872 | } |
1714 | else if (w->interval) |
1873 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now); |
1715 | { |
|
|
1716 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1717 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
1718 | /* this might happen because of floating point inexactness */ |
|
|
1719 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
1720 | { |
|
|
1721 | ev_at (w) += w->interval; |
|
|
1722 | |
1874 | |
1723 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
1724 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
1725 | /* has effectively asked to get triggered more often than possible */ |
|
|
1726 | if (ev_at (w) < ev_rt_now) |
|
|
1727 | ev_at (w) = ev_rt_now; |
|
|
1728 | } |
|
|
1729 | |
|
|
1730 | ANHE_at_cache (periodics [HEAP0]); |
|
|
1731 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1732 | } |
|
|
1733 | else |
|
|
1734 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1735 | |
|
|
1736 | EV_FREQUENT_CHECK; |
|
|
1737 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
1875 | feed_reverse_done (EV_A_ EV_PERIODIC); |
1738 | } |
1876 | } |
1739 | } |
1877 | } |
1740 | |
1878 | |
1741 | static void noinline |
1879 | static void noinline |
1742 | periodics_reschedule (EV_P) |
1880 | periodics_reschedule (EV_P) |
… | |
… | |
1758 | |
1896 | |
1759 | reheap (periodics, periodiccnt); |
1897 | reheap (periodics, periodiccnt); |
1760 | } |
1898 | } |
1761 | #endif |
1899 | #endif |
1762 | |
1900 | |
1763 | void inline_speed |
1901 | static void noinline |
|
|
1902 | timers_reschedule (EV_P_ ev_tstamp adjust) |
|
|
1903 | { |
|
|
1904 | int i; |
|
|
1905 | |
|
|
1906 | for (i = 0; i < timercnt; ++i) |
|
|
1907 | { |
|
|
1908 | ANHE *he = timers + i + HEAP0; |
|
|
1909 | ANHE_w (*he)->at += adjust; |
|
|
1910 | ANHE_at_cache (*he); |
|
|
1911 | } |
|
|
1912 | } |
|
|
1913 | |
|
|
1914 | inline_speed void |
1764 | time_update (EV_P_ ev_tstamp max_block) |
1915 | time_update (EV_P_ ev_tstamp max_block) |
1765 | { |
1916 | { |
1766 | int i; |
1917 | int i; |
1767 | |
1918 | |
1768 | #if EV_USE_MONOTONIC |
1919 | #if EV_USE_MONOTONIC |
… | |
… | |
1801 | ev_rt_now = ev_time (); |
1952 | ev_rt_now = ev_time (); |
1802 | mn_now = get_clock (); |
1953 | mn_now = get_clock (); |
1803 | now_floor = mn_now; |
1954 | now_floor = mn_now; |
1804 | } |
1955 | } |
1805 | |
1956 | |
|
|
1957 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1958 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1806 | # if EV_PERIODIC_ENABLE |
1959 | # if EV_PERIODIC_ENABLE |
1807 | periodics_reschedule (EV_A); |
1960 | periodics_reschedule (EV_A); |
1808 | # endif |
1961 | # endif |
1809 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1810 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1811 | } |
1962 | } |
1812 | else |
1963 | else |
1813 | #endif |
1964 | #endif |
1814 | { |
1965 | { |
1815 | ev_rt_now = ev_time (); |
1966 | ev_rt_now = ev_time (); |
1816 | |
1967 | |
1817 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
1968 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
1818 | { |
1969 | { |
|
|
1970 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1971 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
1819 | #if EV_PERIODIC_ENABLE |
1972 | #if EV_PERIODIC_ENABLE |
1820 | periodics_reschedule (EV_A); |
1973 | periodics_reschedule (EV_A); |
1821 | #endif |
1974 | #endif |
1822 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1823 | for (i = 0; i < timercnt; ++i) |
|
|
1824 | { |
|
|
1825 | ANHE *he = timers + i + HEAP0; |
|
|
1826 | ANHE_w (*he)->at += ev_rt_now - mn_now; |
|
|
1827 | ANHE_at_cache (*he); |
|
|
1828 | } |
|
|
1829 | } |
1975 | } |
1830 | |
1976 | |
1831 | mn_now = ev_rt_now; |
1977 | mn_now = ev_rt_now; |
1832 | } |
1978 | } |
1833 | } |
1979 | } |
1834 | |
1980 | |
1835 | void |
|
|
1836 | ev_ref (EV_P) |
|
|
1837 | { |
|
|
1838 | ++activecnt; |
|
|
1839 | } |
|
|
1840 | |
|
|
1841 | void |
|
|
1842 | ev_unref (EV_P) |
|
|
1843 | { |
|
|
1844 | --activecnt; |
|
|
1845 | } |
|
|
1846 | |
|
|
1847 | static int loop_done; |
1981 | static int loop_done; |
1848 | |
1982 | |
1849 | void |
1983 | void |
1850 | ev_loop (EV_P_ int flags) |
1984 | ev_loop (EV_P_ int flags) |
1851 | { |
1985 | { |
… | |
… | |
1853 | |
1987 | |
1854 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
1988 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
1855 | |
1989 | |
1856 | do |
1990 | do |
1857 | { |
1991 | { |
|
|
1992 | #if EV_VERIFY >= 2 |
|
|
1993 | ev_loop_verify (EV_A); |
|
|
1994 | #endif |
|
|
1995 | |
1858 | #ifndef _WIN32 |
1996 | #ifndef _WIN32 |
1859 | if (expect_false (curpid)) /* penalise the forking check even more */ |
1997 | if (expect_false (curpid)) /* penalise the forking check even more */ |
1860 | if (expect_false (getpid () != curpid)) |
1998 | if (expect_false (getpid () != curpid)) |
1861 | { |
1999 | { |
1862 | curpid = getpid (); |
2000 | curpid = getpid (); |
… | |
… | |
1879 | { |
2017 | { |
1880 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2018 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1881 | call_pending (EV_A); |
2019 | call_pending (EV_A); |
1882 | } |
2020 | } |
1883 | |
2021 | |
1884 | if (expect_false (!activecnt)) |
|
|
1885 | break; |
|
|
1886 | |
|
|
1887 | /* we might have forked, so reify kernel state if necessary */ |
2022 | /* we might have forked, so reify kernel state if necessary */ |
1888 | if (expect_false (postfork)) |
2023 | if (expect_false (postfork)) |
1889 | loop_fork (EV_A); |
2024 | loop_fork (EV_A); |
1890 | |
2025 | |
1891 | /* update fd-related kernel structures */ |
2026 | /* update fd-related kernel structures */ |
… | |
… | |
1898 | |
2033 | |
1899 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2034 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
1900 | { |
2035 | { |
1901 | /* update time to cancel out callback processing overhead */ |
2036 | /* update time to cancel out callback processing overhead */ |
1902 | time_update (EV_A_ 1e100); |
2037 | time_update (EV_A_ 1e100); |
1903 | |
|
|
1904 | waittime = MAX_BLOCKTIME; |
|
|
1905 | |
2038 | |
1906 | if (timercnt) |
2039 | if (timercnt) |
1907 | { |
2040 | { |
1908 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
2041 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
1909 | if (waittime > to) waittime = to; |
2042 | if (waittime > to) waittime = to; |
… | |
… | |
1970 | ev_unloop (EV_P_ int how) |
2103 | ev_unloop (EV_P_ int how) |
1971 | { |
2104 | { |
1972 | loop_done = how; |
2105 | loop_done = how; |
1973 | } |
2106 | } |
1974 | |
2107 | |
|
|
2108 | void |
|
|
2109 | ev_ref (EV_P) |
|
|
2110 | { |
|
|
2111 | ++activecnt; |
|
|
2112 | } |
|
|
2113 | |
|
|
2114 | void |
|
|
2115 | ev_unref (EV_P) |
|
|
2116 | { |
|
|
2117 | --activecnt; |
|
|
2118 | } |
|
|
2119 | |
|
|
2120 | void |
|
|
2121 | ev_now_update (EV_P) |
|
|
2122 | { |
|
|
2123 | time_update (EV_A_ 1e100); |
|
|
2124 | } |
|
|
2125 | |
|
|
2126 | void |
|
|
2127 | ev_suspend (EV_P) |
|
|
2128 | { |
|
|
2129 | ev_now_update (EV_A); |
|
|
2130 | } |
|
|
2131 | |
|
|
2132 | void |
|
|
2133 | ev_resume (EV_P) |
|
|
2134 | { |
|
|
2135 | ev_tstamp mn_prev = mn_now; |
|
|
2136 | |
|
|
2137 | ev_now_update (EV_A); |
|
|
2138 | printf ("update %f\n", mn_now - mn_prev);//D |
|
|
2139 | timers_reschedule (EV_A_ mn_now - mn_prev); |
|
|
2140 | periodics_reschedule (EV_A); |
|
|
2141 | } |
|
|
2142 | |
1975 | /*****************************************************************************/ |
2143 | /*****************************************************************************/ |
1976 | |
2144 | |
1977 | void inline_size |
2145 | inline_size void |
1978 | wlist_add (WL *head, WL elem) |
2146 | wlist_add (WL *head, WL elem) |
1979 | { |
2147 | { |
1980 | elem->next = *head; |
2148 | elem->next = *head; |
1981 | *head = elem; |
2149 | *head = elem; |
1982 | } |
2150 | } |
1983 | |
2151 | |
1984 | void inline_size |
2152 | inline_size void |
1985 | wlist_del (WL *head, WL elem) |
2153 | wlist_del (WL *head, WL elem) |
1986 | { |
2154 | { |
1987 | while (*head) |
2155 | while (*head) |
1988 | { |
2156 | { |
1989 | if (*head == elem) |
2157 | if (*head == elem) |
… | |
… | |
1994 | |
2162 | |
1995 | head = &(*head)->next; |
2163 | head = &(*head)->next; |
1996 | } |
2164 | } |
1997 | } |
2165 | } |
1998 | |
2166 | |
1999 | void inline_speed |
2167 | inline_speed void |
2000 | clear_pending (EV_P_ W w) |
2168 | clear_pending (EV_P_ W w) |
2001 | { |
2169 | { |
2002 | if (w->pending) |
2170 | if (w->pending) |
2003 | { |
2171 | { |
2004 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
2172 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
… | |
… | |
2021 | } |
2189 | } |
2022 | else |
2190 | else |
2023 | return 0; |
2191 | return 0; |
2024 | } |
2192 | } |
2025 | |
2193 | |
2026 | void inline_size |
2194 | inline_size void |
2027 | pri_adjust (EV_P_ W w) |
2195 | pri_adjust (EV_P_ W w) |
2028 | { |
2196 | { |
2029 | int pri = w->priority; |
2197 | int pri = w->priority; |
2030 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2198 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2031 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2199 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2032 | w->priority = pri; |
2200 | w->priority = pri; |
2033 | } |
2201 | } |
2034 | |
2202 | |
2035 | void inline_speed |
2203 | inline_speed void |
2036 | ev_start (EV_P_ W w, int active) |
2204 | ev_start (EV_P_ W w, int active) |
2037 | { |
2205 | { |
2038 | pri_adjust (EV_A_ w); |
2206 | pri_adjust (EV_A_ w); |
2039 | w->active = active; |
2207 | w->active = active; |
2040 | ev_ref (EV_A); |
2208 | ev_ref (EV_A); |
2041 | } |
2209 | } |
2042 | |
2210 | |
2043 | void inline_size |
2211 | inline_size void |
2044 | ev_stop (EV_P_ W w) |
2212 | ev_stop (EV_P_ W w) |
2045 | { |
2213 | { |
2046 | ev_unref (EV_A); |
2214 | ev_unref (EV_A); |
2047 | w->active = 0; |
2215 | w->active = 0; |
2048 | } |
2216 | } |
… | |
… | |
2055 | int fd = w->fd; |
2223 | int fd = w->fd; |
2056 | |
2224 | |
2057 | if (expect_false (ev_is_active (w))) |
2225 | if (expect_false (ev_is_active (w))) |
2058 | return; |
2226 | return; |
2059 | |
2227 | |
2060 | assert (("ev_io_start called with negative fd", fd >= 0)); |
2228 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
|
|
2229 | assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2061 | |
2230 | |
2062 | EV_FREQUENT_CHECK; |
2231 | EV_FREQUENT_CHECK; |
2063 | |
2232 | |
2064 | ev_start (EV_A_ (W)w, 1); |
2233 | ev_start (EV_A_ (W)w, 1); |
2065 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
2234 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2066 | wlist_add (&anfds[fd].head, (WL)w); |
2235 | wlist_add (&anfds[fd].head, (WL)w); |
2067 | |
2236 | |
2068 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
2237 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | 1); |
2069 | w->events &= ~EV_IOFDSET; |
2238 | w->events &= ~EV__IOFDSET; |
2070 | |
2239 | |
2071 | EV_FREQUENT_CHECK; |
2240 | EV_FREQUENT_CHECK; |
2072 | } |
2241 | } |
2073 | |
2242 | |
2074 | void noinline |
2243 | void noinline |
… | |
… | |
2076 | { |
2245 | { |
2077 | clear_pending (EV_A_ (W)w); |
2246 | clear_pending (EV_A_ (W)w); |
2078 | if (expect_false (!ev_is_active (w))) |
2247 | if (expect_false (!ev_is_active (w))) |
2079 | return; |
2248 | return; |
2080 | |
2249 | |
2081 | assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2250 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2082 | |
2251 | |
2083 | EV_FREQUENT_CHECK; |
2252 | EV_FREQUENT_CHECK; |
2084 | |
2253 | |
2085 | wlist_del (&anfds[w->fd].head, (WL)w); |
2254 | wlist_del (&anfds[w->fd].head, (WL)w); |
2086 | ev_stop (EV_A_ (W)w); |
2255 | ev_stop (EV_A_ (W)w); |
… | |
… | |
2096 | if (expect_false (ev_is_active (w))) |
2265 | if (expect_false (ev_is_active (w))) |
2097 | return; |
2266 | return; |
2098 | |
2267 | |
2099 | ev_at (w) += mn_now; |
2268 | ev_at (w) += mn_now; |
2100 | |
2269 | |
2101 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2270 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2102 | |
2271 | |
2103 | EV_FREQUENT_CHECK; |
2272 | EV_FREQUENT_CHECK; |
2104 | |
2273 | |
2105 | ++timercnt; |
2274 | ++timercnt; |
2106 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
2275 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
… | |
… | |
2109 | ANHE_at_cache (timers [ev_active (w)]); |
2278 | ANHE_at_cache (timers [ev_active (w)]); |
2110 | upheap (timers, ev_active (w)); |
2279 | upheap (timers, ev_active (w)); |
2111 | |
2280 | |
2112 | EV_FREQUENT_CHECK; |
2281 | EV_FREQUENT_CHECK; |
2113 | |
2282 | |
2114 | /*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2283 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2115 | } |
2284 | } |
2116 | |
2285 | |
2117 | void noinline |
2286 | void noinline |
2118 | ev_timer_stop (EV_P_ ev_timer *w) |
2287 | ev_timer_stop (EV_P_ ev_timer *w) |
2119 | { |
2288 | { |
… | |
… | |
2124 | EV_FREQUENT_CHECK; |
2293 | EV_FREQUENT_CHECK; |
2125 | |
2294 | |
2126 | { |
2295 | { |
2127 | int active = ev_active (w); |
2296 | int active = ev_active (w); |
2128 | |
2297 | |
2129 | assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
2298 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
2130 | |
2299 | |
2131 | --timercnt; |
2300 | --timercnt; |
2132 | |
2301 | |
2133 | if (expect_true (active < timercnt + HEAP0)) |
2302 | if (expect_true (active < timercnt + HEAP0)) |
2134 | { |
2303 | { |
… | |
… | |
2178 | |
2347 | |
2179 | if (w->reschedule_cb) |
2348 | if (w->reschedule_cb) |
2180 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2349 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2181 | else if (w->interval) |
2350 | else if (w->interval) |
2182 | { |
2351 | { |
2183 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2352 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2184 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2353 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2185 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2354 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2186 | } |
2355 | } |
2187 | else |
2356 | else |
2188 | ev_at (w) = w->offset; |
2357 | ev_at (w) = w->offset; |
… | |
… | |
2196 | ANHE_at_cache (periodics [ev_active (w)]); |
2365 | ANHE_at_cache (periodics [ev_active (w)]); |
2197 | upheap (periodics, ev_active (w)); |
2366 | upheap (periodics, ev_active (w)); |
2198 | |
2367 | |
2199 | EV_FREQUENT_CHECK; |
2368 | EV_FREQUENT_CHECK; |
2200 | |
2369 | |
2201 | /*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2370 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2202 | } |
2371 | } |
2203 | |
2372 | |
2204 | void noinline |
2373 | void noinline |
2205 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2374 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2206 | { |
2375 | { |
… | |
… | |
2211 | EV_FREQUENT_CHECK; |
2380 | EV_FREQUENT_CHECK; |
2212 | |
2381 | |
2213 | { |
2382 | { |
2214 | int active = ev_active (w); |
2383 | int active = ev_active (w); |
2215 | |
2384 | |
2216 | assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
2385 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
2217 | |
2386 | |
2218 | --periodiccnt; |
2387 | --periodiccnt; |
2219 | |
2388 | |
2220 | if (expect_true (active < periodiccnt + HEAP0)) |
2389 | if (expect_true (active < periodiccnt + HEAP0)) |
2221 | { |
2390 | { |
… | |
… | |
2244 | |
2413 | |
2245 | void noinline |
2414 | void noinline |
2246 | ev_signal_start (EV_P_ ev_signal *w) |
2415 | ev_signal_start (EV_P_ ev_signal *w) |
2247 | { |
2416 | { |
2248 | #if EV_MULTIPLICITY |
2417 | #if EV_MULTIPLICITY |
2249 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2418 | assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2250 | #endif |
2419 | #endif |
2251 | if (expect_false (ev_is_active (w))) |
2420 | if (expect_false (ev_is_active (w))) |
2252 | return; |
2421 | return; |
2253 | |
2422 | |
2254 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2423 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); |
2255 | |
2424 | |
2256 | evpipe_init (EV_A); |
2425 | evpipe_init (EV_A); |
2257 | |
2426 | |
2258 | EV_FREQUENT_CHECK; |
2427 | EV_FREQUENT_CHECK; |
2259 | |
2428 | |
… | |
… | |
2262 | sigset_t full, prev; |
2431 | sigset_t full, prev; |
2263 | sigfillset (&full); |
2432 | sigfillset (&full); |
2264 | sigprocmask (SIG_SETMASK, &full, &prev); |
2433 | sigprocmask (SIG_SETMASK, &full, &prev); |
2265 | #endif |
2434 | #endif |
2266 | |
2435 | |
2267 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
2436 | array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); |
2268 | |
2437 | |
2269 | #ifndef _WIN32 |
2438 | #ifndef _WIN32 |
2270 | sigprocmask (SIG_SETMASK, &prev, 0); |
2439 | sigprocmask (SIG_SETMASK, &prev, 0); |
2271 | #endif |
2440 | #endif |
2272 | } |
2441 | } |
… | |
… | |
2310 | |
2479 | |
2311 | void |
2480 | void |
2312 | ev_child_start (EV_P_ ev_child *w) |
2481 | ev_child_start (EV_P_ ev_child *w) |
2313 | { |
2482 | { |
2314 | #if EV_MULTIPLICITY |
2483 | #if EV_MULTIPLICITY |
2315 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2484 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2316 | #endif |
2485 | #endif |
2317 | if (expect_false (ev_is_active (w))) |
2486 | if (expect_false (ev_is_active (w))) |
2318 | return; |
2487 | return; |
2319 | |
2488 | |
2320 | EV_FREQUENT_CHECK; |
2489 | EV_FREQUENT_CHECK; |
… | |
… | |
2345 | # ifdef _WIN32 |
2514 | # ifdef _WIN32 |
2346 | # undef lstat |
2515 | # undef lstat |
2347 | # define lstat(a,b) _stati64 (a,b) |
2516 | # define lstat(a,b) _stati64 (a,b) |
2348 | # endif |
2517 | # endif |
2349 | |
2518 | |
2350 | #define DEF_STAT_INTERVAL 5.0074891 |
2519 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
2520 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
2351 | #define MIN_STAT_INTERVAL 0.1074891 |
2521 | #define MIN_STAT_INTERVAL 0.1074891 |
2352 | |
2522 | |
2353 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2523 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2354 | |
2524 | |
2355 | #if EV_USE_INOTIFY |
2525 | #if EV_USE_INOTIFY |
2356 | # define EV_INOTIFY_BUFSIZE 8192 |
2526 | # define EV_INOTIFY_BUFSIZE 8192 |
… | |
… | |
2360 | { |
2530 | { |
2361 | 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); |
2531 | 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); |
2362 | |
2532 | |
2363 | if (w->wd < 0) |
2533 | if (w->wd < 0) |
2364 | { |
2534 | { |
|
|
2535 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2365 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2536 | ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2366 | |
2537 | |
2367 | /* monitor some parent directory for speedup hints */ |
2538 | /* monitor some parent directory for speedup hints */ |
2368 | /* note that exceeding the hardcoded limit is not a correctness issue, */ |
2539 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2369 | /* but an efficiency issue only */ |
2540 | /* but an efficiency issue only */ |
2370 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2541 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2371 | { |
2542 | { |
2372 | char path [4096]; |
2543 | char path [4096]; |
2373 | strcpy (path, w->path); |
2544 | strcpy (path, w->path); |
… | |
… | |
2377 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2548 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2378 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2549 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2379 | |
2550 | |
2380 | char *pend = strrchr (path, '/'); |
2551 | char *pend = strrchr (path, '/'); |
2381 | |
2552 | |
2382 | if (!pend) |
2553 | if (!pend || pend == path) |
2383 | break; /* whoops, no '/', complain to your admin */ |
2554 | break; |
2384 | |
2555 | |
2385 | *pend = 0; |
2556 | *pend = 0; |
2386 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2557 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2387 | } |
2558 | } |
2388 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2559 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2389 | } |
2560 | } |
2390 | } |
2561 | } |
2391 | else |
|
|
2392 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
2393 | |
2562 | |
2394 | if (w->wd >= 0) |
2563 | if (w->wd >= 0) |
|
|
2564 | { |
2395 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2565 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
2566 | |
|
|
2567 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
2568 | /* unless the filesystem it known to be local, we therefore still poll */ |
|
|
2569 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2570 | struct statfs sfs; |
|
|
2571 | |
|
|
2572 | if (fs_2625 && !statfs (w->path, &sfs)) |
|
|
2573 | if (sfs.f_type == 0x1373 /* devfs */ |
|
|
2574 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2575 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2576 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2577 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2578 | || sfs.f_type == 0x58465342 /* xfs */) |
|
|
2579 | return; |
|
|
2580 | |
|
|
2581 | w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2582 | ev_timer_again (EV_A_ &w->timer); |
|
|
2583 | } |
2396 | } |
2584 | } |
2397 | |
2585 | |
2398 | static void noinline |
2586 | static void noinline |
2399 | infy_del (EV_P_ ev_stat *w) |
2587 | infy_del (EV_P_ ev_stat *w) |
2400 | { |
2588 | { |
… | |
… | |
2414 | |
2602 | |
2415 | static void noinline |
2603 | static void noinline |
2416 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2604 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2417 | { |
2605 | { |
2418 | if (slot < 0) |
2606 | if (slot < 0) |
2419 | /* overflow, need to check for all hahs slots */ |
2607 | /* overflow, need to check for all hash slots */ |
2420 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2608 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2421 | infy_wd (EV_A_ slot, wd, ev); |
2609 | infy_wd (EV_A_ slot, wd, ev); |
2422 | else |
2610 | else |
2423 | { |
2611 | { |
2424 | WL w_; |
2612 | WL w_; |
… | |
… | |
2430 | |
2618 | |
2431 | if (w->wd == wd || wd == -1) |
2619 | if (w->wd == wd || wd == -1) |
2432 | { |
2620 | { |
2433 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2621 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2434 | { |
2622 | { |
|
|
2623 | wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2435 | w->wd = -1; |
2624 | w->wd = -1; |
2436 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2625 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2437 | } |
2626 | } |
2438 | |
2627 | |
2439 | stat_timer_cb (EV_A_ &w->timer, 0); |
2628 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2452 | |
2641 | |
2453 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
2642 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
2454 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
2643 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
2455 | } |
2644 | } |
2456 | |
2645 | |
2457 | void inline_size |
2646 | inline_size void |
|
|
2647 | check_2625 (EV_P) |
|
|
2648 | { |
|
|
2649 | /* kernels < 2.6.25 are borked |
|
|
2650 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
|
|
2651 | */ |
|
|
2652 | struct utsname buf; |
|
|
2653 | int major, minor, micro; |
|
|
2654 | |
|
|
2655 | if (uname (&buf)) |
|
|
2656 | return; |
|
|
2657 | |
|
|
2658 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
|
|
2659 | return; |
|
|
2660 | |
|
|
2661 | if (major < 2 |
|
|
2662 | || (major == 2 && minor < 6) |
|
|
2663 | || (major == 2 && minor == 6 && micro < 25)) |
|
|
2664 | return; |
|
|
2665 | |
|
|
2666 | fs_2625 = 1; |
|
|
2667 | } |
|
|
2668 | |
|
|
2669 | inline_size void |
2458 | infy_init (EV_P) |
2670 | infy_init (EV_P) |
2459 | { |
2671 | { |
2460 | if (fs_fd != -2) |
2672 | if (fs_fd != -2) |
2461 | return; |
2673 | return; |
|
|
2674 | |
|
|
2675 | fs_fd = -1; |
|
|
2676 | |
|
|
2677 | check_2625 (EV_A); |
2462 | |
2678 | |
2463 | fs_fd = inotify_init (); |
2679 | fs_fd = inotify_init (); |
2464 | |
2680 | |
2465 | if (fs_fd >= 0) |
2681 | if (fs_fd >= 0) |
2466 | { |
2682 | { |
… | |
… | |
2468 | ev_set_priority (&fs_w, EV_MAXPRI); |
2684 | ev_set_priority (&fs_w, EV_MAXPRI); |
2469 | ev_io_start (EV_A_ &fs_w); |
2685 | ev_io_start (EV_A_ &fs_w); |
2470 | } |
2686 | } |
2471 | } |
2687 | } |
2472 | |
2688 | |
2473 | void inline_size |
2689 | inline_size void |
2474 | infy_fork (EV_P) |
2690 | infy_fork (EV_P) |
2475 | { |
2691 | { |
2476 | int slot; |
2692 | int slot; |
2477 | |
2693 | |
2478 | if (fs_fd < 0) |
2694 | if (fs_fd < 0) |
… | |
… | |
2494 | w->wd = -1; |
2710 | w->wd = -1; |
2495 | |
2711 | |
2496 | if (fs_fd >= 0) |
2712 | if (fs_fd >= 0) |
2497 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2713 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2498 | else |
2714 | else |
2499 | ev_timer_start (EV_A_ &w->timer); |
2715 | ev_timer_again (EV_A_ &w->timer); |
2500 | } |
2716 | } |
2501 | |
|
|
2502 | } |
2717 | } |
2503 | } |
2718 | } |
2504 | |
2719 | |
|
|
2720 | #endif |
|
|
2721 | |
|
|
2722 | #ifdef _WIN32 |
|
|
2723 | # define EV_LSTAT(p,b) _stati64 (p, b) |
|
|
2724 | #else |
|
|
2725 | # define EV_LSTAT(p,b) lstat (p, b) |
2505 | #endif |
2726 | #endif |
2506 | |
2727 | |
2507 | void |
2728 | void |
2508 | ev_stat_stat (EV_P_ ev_stat *w) |
2729 | ev_stat_stat (EV_P_ ev_stat *w) |
2509 | { |
2730 | { |
… | |
… | |
2536 | || w->prev.st_atime != w->attr.st_atime |
2757 | || w->prev.st_atime != w->attr.st_atime |
2537 | || w->prev.st_mtime != w->attr.st_mtime |
2758 | || w->prev.st_mtime != w->attr.st_mtime |
2538 | || w->prev.st_ctime != w->attr.st_ctime |
2759 | || w->prev.st_ctime != w->attr.st_ctime |
2539 | ) { |
2760 | ) { |
2540 | #if EV_USE_INOTIFY |
2761 | #if EV_USE_INOTIFY |
|
|
2762 | if (fs_fd >= 0) |
|
|
2763 | { |
2541 | infy_del (EV_A_ w); |
2764 | infy_del (EV_A_ w); |
2542 | infy_add (EV_A_ w); |
2765 | infy_add (EV_A_ w); |
2543 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
2766 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
2767 | } |
2544 | #endif |
2768 | #endif |
2545 | |
2769 | |
2546 | ev_feed_event (EV_A_ w, EV_STAT); |
2770 | ev_feed_event (EV_A_ w, EV_STAT); |
2547 | } |
2771 | } |
2548 | } |
2772 | } |
… | |
… | |
2551 | ev_stat_start (EV_P_ ev_stat *w) |
2775 | ev_stat_start (EV_P_ ev_stat *w) |
2552 | { |
2776 | { |
2553 | if (expect_false (ev_is_active (w))) |
2777 | if (expect_false (ev_is_active (w))) |
2554 | return; |
2778 | return; |
2555 | |
2779 | |
2556 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2557 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2558 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2559 | |
|
|
2560 | ev_stat_stat (EV_A_ w); |
2780 | ev_stat_stat (EV_A_ w); |
2561 | |
2781 | |
|
|
2782 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
2562 | if (w->interval < MIN_STAT_INTERVAL) |
2783 | w->interval = MIN_STAT_INTERVAL; |
2563 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2564 | |
2784 | |
2565 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
2785 | ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL); |
2566 | ev_set_priority (&w->timer, ev_priority (w)); |
2786 | ev_set_priority (&w->timer, ev_priority (w)); |
2567 | |
2787 | |
2568 | #if EV_USE_INOTIFY |
2788 | #if EV_USE_INOTIFY |
2569 | infy_init (EV_A); |
2789 | infy_init (EV_A); |
2570 | |
2790 | |
2571 | if (fs_fd >= 0) |
2791 | if (fs_fd >= 0) |
2572 | infy_add (EV_A_ w); |
2792 | infy_add (EV_A_ w); |
2573 | else |
2793 | else |
2574 | #endif |
2794 | #endif |
2575 | ev_timer_start (EV_A_ &w->timer); |
2795 | ev_timer_again (EV_A_ &w->timer); |
2576 | |
2796 | |
2577 | ev_start (EV_A_ (W)w, 1); |
2797 | ev_start (EV_A_ (W)w, 1); |
2578 | |
2798 | |
2579 | EV_FREQUENT_CHECK; |
2799 | EV_FREQUENT_CHECK; |
2580 | } |
2800 | } |
… | |
… | |
2750 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
2970 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
2751 | } |
2971 | } |
2752 | } |
2972 | } |
2753 | } |
2973 | } |
2754 | |
2974 | |
|
|
2975 | static void |
|
|
2976 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
|
|
2977 | { |
|
|
2978 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
|
|
2979 | |
|
|
2980 | ev_embed_stop (EV_A_ w); |
|
|
2981 | |
|
|
2982 | { |
|
|
2983 | struct ev_loop *loop = w->other; |
|
|
2984 | |
|
|
2985 | ev_loop_fork (EV_A); |
|
|
2986 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
2987 | } |
|
|
2988 | |
|
|
2989 | ev_embed_start (EV_A_ w); |
|
|
2990 | } |
|
|
2991 | |
2755 | #if 0 |
2992 | #if 0 |
2756 | static void |
2993 | static void |
2757 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
2994 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
2758 | { |
2995 | { |
2759 | ev_idle_stop (EV_A_ idle); |
2996 | ev_idle_stop (EV_A_ idle); |
… | |
… | |
2766 | if (expect_false (ev_is_active (w))) |
3003 | if (expect_false (ev_is_active (w))) |
2767 | return; |
3004 | return; |
2768 | |
3005 | |
2769 | { |
3006 | { |
2770 | struct ev_loop *loop = w->other; |
3007 | struct ev_loop *loop = w->other; |
2771 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3008 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2772 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3009 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2773 | } |
3010 | } |
2774 | |
3011 | |
2775 | EV_FREQUENT_CHECK; |
3012 | EV_FREQUENT_CHECK; |
2776 | |
3013 | |
… | |
… | |
2779 | |
3016 | |
2780 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
3017 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
2781 | ev_set_priority (&w->prepare, EV_MINPRI); |
3018 | ev_set_priority (&w->prepare, EV_MINPRI); |
2782 | ev_prepare_start (EV_A_ &w->prepare); |
3019 | ev_prepare_start (EV_A_ &w->prepare); |
2783 | |
3020 | |
|
|
3021 | ev_fork_init (&w->fork, embed_fork_cb); |
|
|
3022 | ev_fork_start (EV_A_ &w->fork); |
|
|
3023 | |
2784 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
3024 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
2785 | |
3025 | |
2786 | ev_start (EV_A_ (W)w, 1); |
3026 | ev_start (EV_A_ (W)w, 1); |
2787 | |
3027 | |
2788 | EV_FREQUENT_CHECK; |
3028 | EV_FREQUENT_CHECK; |
… | |
… | |
2795 | if (expect_false (!ev_is_active (w))) |
3035 | if (expect_false (!ev_is_active (w))) |
2796 | return; |
3036 | return; |
2797 | |
3037 | |
2798 | EV_FREQUENT_CHECK; |
3038 | EV_FREQUENT_CHECK; |
2799 | |
3039 | |
2800 | ev_io_stop (EV_A_ &w->io); |
3040 | ev_io_stop (EV_A_ &w->io); |
2801 | ev_prepare_stop (EV_A_ &w->prepare); |
3041 | ev_prepare_stop (EV_A_ &w->prepare); |
2802 | |
3042 | ev_fork_stop (EV_A_ &w->fork); |
2803 | ev_stop (EV_A_ (W)w); |
|
|
2804 | |
3043 | |
2805 | EV_FREQUENT_CHECK; |
3044 | EV_FREQUENT_CHECK; |
2806 | } |
3045 | } |
2807 | #endif |
3046 | #endif |
2808 | |
3047 | |
… | |
… | |
2905 | once_cb (EV_P_ struct ev_once *once, int revents) |
3144 | once_cb (EV_P_ struct ev_once *once, int revents) |
2906 | { |
3145 | { |
2907 | void (*cb)(int revents, void *arg) = once->cb; |
3146 | void (*cb)(int revents, void *arg) = once->cb; |
2908 | void *arg = once->arg; |
3147 | void *arg = once->arg; |
2909 | |
3148 | |
2910 | ev_io_stop (EV_A_ &once->io); |
3149 | ev_io_stop (EV_A_ &once->io); |
2911 | ev_timer_stop (EV_A_ &once->to); |
3150 | ev_timer_stop (EV_A_ &once->to); |
2912 | ev_free (once); |
3151 | ev_free (once); |
2913 | |
3152 | |
2914 | cb (revents, arg); |
3153 | cb (revents, arg); |
2915 | } |
3154 | } |
2916 | |
3155 | |
2917 | static void |
3156 | static void |
2918 | once_cb_io (EV_P_ ev_io *w, int revents) |
3157 | once_cb_io (EV_P_ ev_io *w, int revents) |
2919 | { |
3158 | { |
2920 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
3159 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)); |
|
|
3160 | |
|
|
3161 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to)); |
2921 | } |
3162 | } |
2922 | |
3163 | |
2923 | static void |
3164 | static void |
2924 | once_cb_to (EV_P_ ev_timer *w, int revents) |
3165 | once_cb_to (EV_P_ ev_timer *w, int revents) |
2925 | { |
3166 | { |
2926 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
3167 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)); |
|
|
3168 | |
|
|
3169 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
2927 | } |
3170 | } |
2928 | |
3171 | |
2929 | void |
3172 | void |
2930 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
3173 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
2931 | { |
3174 | { |
… | |
… | |
2953 | ev_timer_set (&once->to, timeout, 0.); |
3196 | ev_timer_set (&once->to, timeout, 0.); |
2954 | ev_timer_start (EV_A_ &once->to); |
3197 | ev_timer_start (EV_A_ &once->to); |
2955 | } |
3198 | } |
2956 | } |
3199 | } |
2957 | |
3200 | |
|
|
3201 | /*****************************************************************************/ |
|
|
3202 | |
|
|
3203 | #if 0 |
|
|
3204 | void |
|
|
3205 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
|
|
3206 | { |
|
|
3207 | int i, j; |
|
|
3208 | ev_watcher_list *wl, *wn; |
|
|
3209 | |
|
|
3210 | if (types & (EV_IO | EV_EMBED)) |
|
|
3211 | for (i = 0; i < anfdmax; ++i) |
|
|
3212 | for (wl = anfds [i].head; wl; ) |
|
|
3213 | { |
|
|
3214 | wn = wl->next; |
|
|
3215 | |
|
|
3216 | #if EV_EMBED_ENABLE |
|
|
3217 | if (ev_cb ((ev_io *)wl) == embed_io_cb) |
|
|
3218 | { |
|
|
3219 | if (types & EV_EMBED) |
|
|
3220 | cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io)); |
|
|
3221 | } |
|
|
3222 | else |
|
|
3223 | #endif |
|
|
3224 | #if EV_USE_INOTIFY |
|
|
3225 | if (ev_cb ((ev_io *)wl) == infy_cb) |
|
|
3226 | ; |
|
|
3227 | else |
|
|
3228 | #endif |
|
|
3229 | if ((ev_io *)wl != &pipeev) |
|
|
3230 | if (types & EV_IO) |
|
|
3231 | cb (EV_A_ EV_IO, wl); |
|
|
3232 | |
|
|
3233 | wl = wn; |
|
|
3234 | } |
|
|
3235 | |
|
|
3236 | if (types & (EV_TIMER | EV_STAT)) |
|
|
3237 | for (i = timercnt + HEAP0; i-- > HEAP0; ) |
|
|
3238 | #if EV_STAT_ENABLE |
|
|
3239 | /*TODO: timer is not always active*/ |
|
|
3240 | if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb) |
|
|
3241 | { |
|
|
3242 | if (types & EV_STAT) |
|
|
3243 | cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer)); |
|
|
3244 | } |
|
|
3245 | else |
|
|
3246 | #endif |
|
|
3247 | if (types & EV_TIMER) |
|
|
3248 | cb (EV_A_ EV_TIMER, ANHE_w (timers [i])); |
|
|
3249 | |
|
|
3250 | #if EV_PERIODIC_ENABLE |
|
|
3251 | if (types & EV_PERIODIC) |
|
|
3252 | for (i = periodiccnt + HEAP0; i-- > HEAP0; ) |
|
|
3253 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
|
|
3254 | #endif |
|
|
3255 | |
|
|
3256 | #if EV_IDLE_ENABLE |
|
|
3257 | if (types & EV_IDLE) |
|
|
3258 | for (j = NUMPRI; i--; ) |
|
|
3259 | for (i = idlecnt [j]; i--; ) |
|
|
3260 | cb (EV_A_ EV_IDLE, idles [j][i]); |
|
|
3261 | #endif |
|
|
3262 | |
|
|
3263 | #if EV_FORK_ENABLE |
|
|
3264 | if (types & EV_FORK) |
|
|
3265 | for (i = forkcnt; i--; ) |
|
|
3266 | if (ev_cb (forks [i]) != embed_fork_cb) |
|
|
3267 | cb (EV_A_ EV_FORK, forks [i]); |
|
|
3268 | #endif |
|
|
3269 | |
|
|
3270 | #if EV_ASYNC_ENABLE |
|
|
3271 | if (types & EV_ASYNC) |
|
|
3272 | for (i = asynccnt; i--; ) |
|
|
3273 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
|
|
3274 | #endif |
|
|
3275 | |
|
|
3276 | if (types & EV_PREPARE) |
|
|
3277 | for (i = preparecnt; i--; ) |
|
|
3278 | #if EV_EMBED_ENABLE |
|
|
3279 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
|
|
3280 | #endif |
|
|
3281 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
3282 | |
|
|
3283 | if (types & EV_CHECK) |
|
|
3284 | for (i = checkcnt; i--; ) |
|
|
3285 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
3286 | |
|
|
3287 | if (types & EV_SIGNAL) |
|
|
3288 | for (i = 0; i < signalmax; ++i) |
|
|
3289 | for (wl = signals [i].head; wl; ) |
|
|
3290 | { |
|
|
3291 | wn = wl->next; |
|
|
3292 | cb (EV_A_ EV_SIGNAL, wl); |
|
|
3293 | wl = wn; |
|
|
3294 | } |
|
|
3295 | |
|
|
3296 | if (types & EV_CHILD) |
|
|
3297 | for (i = EV_PID_HASHSIZE; i--; ) |
|
|
3298 | for (wl = childs [i]; wl; ) |
|
|
3299 | { |
|
|
3300 | wn = wl->next; |
|
|
3301 | cb (EV_A_ EV_CHILD, wl); |
|
|
3302 | wl = wn; |
|
|
3303 | } |
|
|
3304 | /* EV_STAT 0x00001000 /* stat data changed */ |
|
|
3305 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
|
|
3306 | } |
|
|
3307 | #endif |
|
|
3308 | |
2958 | #if EV_MULTIPLICITY |
3309 | #if EV_MULTIPLICITY |
2959 | #include "ev_wrap.h" |
3310 | #include "ev_wrap.h" |
2960 | #endif |
3311 | #endif |
2961 | |
3312 | |
2962 | #ifdef __cplusplus |
3313 | #ifdef __cplusplus |