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 | inline_speed void |
1764 | time_update (EV_P_ ev_tstamp max_block) |
1902 | time_update (EV_P_ ev_tstamp max_block) |
1765 | { |
1903 | { |
1766 | int i; |
1904 | int i; |
1767 | |
1905 | |
1768 | #if EV_USE_MONOTONIC |
1906 | #if EV_USE_MONOTONIC |
… | |
… | |
1842 | ev_unref (EV_P) |
1980 | ev_unref (EV_P) |
1843 | { |
1981 | { |
1844 | --activecnt; |
1982 | --activecnt; |
1845 | } |
1983 | } |
1846 | |
1984 | |
|
|
1985 | void |
|
|
1986 | ev_now_update (EV_P) |
|
|
1987 | { |
|
|
1988 | time_update (EV_A_ 1e100); |
|
|
1989 | } |
|
|
1990 | |
1847 | static int loop_done; |
1991 | static int loop_done; |
1848 | |
1992 | |
1849 | void |
1993 | void |
1850 | ev_loop (EV_P_ int flags) |
1994 | ev_loop (EV_P_ int flags) |
1851 | { |
1995 | { |
… | |
… | |
1853 | |
1997 | |
1854 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
1998 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
1855 | |
1999 | |
1856 | do |
2000 | do |
1857 | { |
2001 | { |
|
|
2002 | #if EV_VERIFY >= 2 |
|
|
2003 | ev_loop_verify (EV_A); |
|
|
2004 | #endif |
|
|
2005 | |
1858 | #ifndef _WIN32 |
2006 | #ifndef _WIN32 |
1859 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2007 | if (expect_false (curpid)) /* penalise the forking check even more */ |
1860 | if (expect_false (getpid () != curpid)) |
2008 | if (expect_false (getpid () != curpid)) |
1861 | { |
2009 | { |
1862 | curpid = getpid (); |
2010 | curpid = getpid (); |
… | |
… | |
1879 | { |
2027 | { |
1880 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2028 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1881 | call_pending (EV_A); |
2029 | call_pending (EV_A); |
1882 | } |
2030 | } |
1883 | |
2031 | |
1884 | if (expect_false (!activecnt)) |
|
|
1885 | break; |
|
|
1886 | |
|
|
1887 | /* we might have forked, so reify kernel state if necessary */ |
2032 | /* we might have forked, so reify kernel state if necessary */ |
1888 | if (expect_false (postfork)) |
2033 | if (expect_false (postfork)) |
1889 | loop_fork (EV_A); |
2034 | loop_fork (EV_A); |
1890 | |
2035 | |
1891 | /* update fd-related kernel structures */ |
2036 | /* update fd-related kernel structures */ |
… | |
… | |
1898 | |
2043 | |
1899 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2044 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
1900 | { |
2045 | { |
1901 | /* update time to cancel out callback processing overhead */ |
2046 | /* update time to cancel out callback processing overhead */ |
1902 | time_update (EV_A_ 1e100); |
2047 | time_update (EV_A_ 1e100); |
1903 | |
|
|
1904 | waittime = MAX_BLOCKTIME; |
|
|
1905 | |
2048 | |
1906 | if (timercnt) |
2049 | if (timercnt) |
1907 | { |
2050 | { |
1908 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
2051 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
1909 | if (waittime > to) waittime = to; |
2052 | if (waittime > to) waittime = to; |
… | |
… | |
1972 | loop_done = how; |
2115 | loop_done = how; |
1973 | } |
2116 | } |
1974 | |
2117 | |
1975 | /*****************************************************************************/ |
2118 | /*****************************************************************************/ |
1976 | |
2119 | |
1977 | void inline_size |
2120 | inline_size void |
1978 | wlist_add (WL *head, WL elem) |
2121 | wlist_add (WL *head, WL elem) |
1979 | { |
2122 | { |
1980 | elem->next = *head; |
2123 | elem->next = *head; |
1981 | *head = elem; |
2124 | *head = elem; |
1982 | } |
2125 | } |
1983 | |
2126 | |
1984 | void inline_size |
2127 | inline_size void |
1985 | wlist_del (WL *head, WL elem) |
2128 | wlist_del (WL *head, WL elem) |
1986 | { |
2129 | { |
1987 | while (*head) |
2130 | while (*head) |
1988 | { |
2131 | { |
1989 | if (*head == elem) |
2132 | if (*head == elem) |
… | |
… | |
1994 | |
2137 | |
1995 | head = &(*head)->next; |
2138 | head = &(*head)->next; |
1996 | } |
2139 | } |
1997 | } |
2140 | } |
1998 | |
2141 | |
1999 | void inline_speed |
2142 | inline_speed void |
2000 | clear_pending (EV_P_ W w) |
2143 | clear_pending (EV_P_ W w) |
2001 | { |
2144 | { |
2002 | if (w->pending) |
2145 | if (w->pending) |
2003 | { |
2146 | { |
2004 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
2147 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
… | |
… | |
2021 | } |
2164 | } |
2022 | else |
2165 | else |
2023 | return 0; |
2166 | return 0; |
2024 | } |
2167 | } |
2025 | |
2168 | |
2026 | void inline_size |
2169 | inline_size void |
2027 | pri_adjust (EV_P_ W w) |
2170 | pri_adjust (EV_P_ W w) |
2028 | { |
2171 | { |
2029 | int pri = w->priority; |
2172 | int pri = w->priority; |
2030 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2173 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2031 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2174 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2032 | w->priority = pri; |
2175 | w->priority = pri; |
2033 | } |
2176 | } |
2034 | |
2177 | |
2035 | void inline_speed |
2178 | inline_speed void |
2036 | ev_start (EV_P_ W w, int active) |
2179 | ev_start (EV_P_ W w, int active) |
2037 | { |
2180 | { |
2038 | pri_adjust (EV_A_ w); |
2181 | pri_adjust (EV_A_ w); |
2039 | w->active = active; |
2182 | w->active = active; |
2040 | ev_ref (EV_A); |
2183 | ev_ref (EV_A); |
2041 | } |
2184 | } |
2042 | |
2185 | |
2043 | void inline_size |
2186 | inline_size void |
2044 | ev_stop (EV_P_ W w) |
2187 | ev_stop (EV_P_ W w) |
2045 | { |
2188 | { |
2046 | ev_unref (EV_A); |
2189 | ev_unref (EV_A); |
2047 | w->active = 0; |
2190 | w->active = 0; |
2048 | } |
2191 | } |
… | |
… | |
2055 | int fd = w->fd; |
2198 | int fd = w->fd; |
2056 | |
2199 | |
2057 | if (expect_false (ev_is_active (w))) |
2200 | if (expect_false (ev_is_active (w))) |
2058 | return; |
2201 | return; |
2059 | |
2202 | |
2060 | assert (("ev_io_start called with negative fd", fd >= 0)); |
2203 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
|
|
2204 | assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2061 | |
2205 | |
2062 | EV_FREQUENT_CHECK; |
2206 | EV_FREQUENT_CHECK; |
2063 | |
2207 | |
2064 | ev_start (EV_A_ (W)w, 1); |
2208 | ev_start (EV_A_ (W)w, 1); |
2065 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
2209 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2066 | wlist_add (&anfds[fd].head, (WL)w); |
2210 | wlist_add (&anfds[fd].head, (WL)w); |
2067 | |
2211 | |
2068 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
2212 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | 1); |
2069 | w->events &= ~EV_IOFDSET; |
2213 | w->events &= ~EV__IOFDSET; |
2070 | |
2214 | |
2071 | EV_FREQUENT_CHECK; |
2215 | EV_FREQUENT_CHECK; |
2072 | } |
2216 | } |
2073 | |
2217 | |
2074 | void noinline |
2218 | void noinline |
… | |
… | |
2076 | { |
2220 | { |
2077 | clear_pending (EV_A_ (W)w); |
2221 | clear_pending (EV_A_ (W)w); |
2078 | if (expect_false (!ev_is_active (w))) |
2222 | if (expect_false (!ev_is_active (w))) |
2079 | return; |
2223 | return; |
2080 | |
2224 | |
2081 | assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2225 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2082 | |
2226 | |
2083 | EV_FREQUENT_CHECK; |
2227 | EV_FREQUENT_CHECK; |
2084 | |
2228 | |
2085 | wlist_del (&anfds[w->fd].head, (WL)w); |
2229 | wlist_del (&anfds[w->fd].head, (WL)w); |
2086 | ev_stop (EV_A_ (W)w); |
2230 | ev_stop (EV_A_ (W)w); |
… | |
… | |
2096 | if (expect_false (ev_is_active (w))) |
2240 | if (expect_false (ev_is_active (w))) |
2097 | return; |
2241 | return; |
2098 | |
2242 | |
2099 | ev_at (w) += mn_now; |
2243 | ev_at (w) += mn_now; |
2100 | |
2244 | |
2101 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2245 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2102 | |
2246 | |
2103 | EV_FREQUENT_CHECK; |
2247 | EV_FREQUENT_CHECK; |
2104 | |
2248 | |
2105 | ++timercnt; |
2249 | ++timercnt; |
2106 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
2250 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
… | |
… | |
2109 | ANHE_at_cache (timers [ev_active (w)]); |
2253 | ANHE_at_cache (timers [ev_active (w)]); |
2110 | upheap (timers, ev_active (w)); |
2254 | upheap (timers, ev_active (w)); |
2111 | |
2255 | |
2112 | EV_FREQUENT_CHECK; |
2256 | EV_FREQUENT_CHECK; |
2113 | |
2257 | |
2114 | /*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2258 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2115 | } |
2259 | } |
2116 | |
2260 | |
2117 | void noinline |
2261 | void noinline |
2118 | ev_timer_stop (EV_P_ ev_timer *w) |
2262 | ev_timer_stop (EV_P_ ev_timer *w) |
2119 | { |
2263 | { |
… | |
… | |
2124 | EV_FREQUENT_CHECK; |
2268 | EV_FREQUENT_CHECK; |
2125 | |
2269 | |
2126 | { |
2270 | { |
2127 | int active = ev_active (w); |
2271 | int active = ev_active (w); |
2128 | |
2272 | |
2129 | assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
2273 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
2130 | |
2274 | |
2131 | --timercnt; |
2275 | --timercnt; |
2132 | |
2276 | |
2133 | if (expect_true (active < timercnt + HEAP0)) |
2277 | if (expect_true (active < timercnt + HEAP0)) |
2134 | { |
2278 | { |
… | |
… | |
2178 | |
2322 | |
2179 | if (w->reschedule_cb) |
2323 | if (w->reschedule_cb) |
2180 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2324 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2181 | else if (w->interval) |
2325 | else if (w->interval) |
2182 | { |
2326 | { |
2183 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2327 | 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 */ |
2328 | /* 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; |
2329 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2186 | } |
2330 | } |
2187 | else |
2331 | else |
2188 | ev_at (w) = w->offset; |
2332 | ev_at (w) = w->offset; |
… | |
… | |
2196 | ANHE_at_cache (periodics [ev_active (w)]); |
2340 | ANHE_at_cache (periodics [ev_active (w)]); |
2197 | upheap (periodics, ev_active (w)); |
2341 | upheap (periodics, ev_active (w)); |
2198 | |
2342 | |
2199 | EV_FREQUENT_CHECK; |
2343 | EV_FREQUENT_CHECK; |
2200 | |
2344 | |
2201 | /*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2345 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2202 | } |
2346 | } |
2203 | |
2347 | |
2204 | void noinline |
2348 | void noinline |
2205 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2349 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2206 | { |
2350 | { |
… | |
… | |
2211 | EV_FREQUENT_CHECK; |
2355 | EV_FREQUENT_CHECK; |
2212 | |
2356 | |
2213 | { |
2357 | { |
2214 | int active = ev_active (w); |
2358 | int active = ev_active (w); |
2215 | |
2359 | |
2216 | assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
2360 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
2217 | |
2361 | |
2218 | --periodiccnt; |
2362 | --periodiccnt; |
2219 | |
2363 | |
2220 | if (expect_true (active < periodiccnt + HEAP0)) |
2364 | if (expect_true (active < periodiccnt + HEAP0)) |
2221 | { |
2365 | { |
… | |
… | |
2244 | |
2388 | |
2245 | void noinline |
2389 | void noinline |
2246 | ev_signal_start (EV_P_ ev_signal *w) |
2390 | ev_signal_start (EV_P_ ev_signal *w) |
2247 | { |
2391 | { |
2248 | #if EV_MULTIPLICITY |
2392 | #if EV_MULTIPLICITY |
2249 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2393 | assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2250 | #endif |
2394 | #endif |
2251 | if (expect_false (ev_is_active (w))) |
2395 | if (expect_false (ev_is_active (w))) |
2252 | return; |
2396 | return; |
2253 | |
2397 | |
2254 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2398 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); |
2255 | |
2399 | |
2256 | evpipe_init (EV_A); |
2400 | evpipe_init (EV_A); |
2257 | |
2401 | |
2258 | EV_FREQUENT_CHECK; |
2402 | EV_FREQUENT_CHECK; |
2259 | |
2403 | |
… | |
… | |
2262 | sigset_t full, prev; |
2406 | sigset_t full, prev; |
2263 | sigfillset (&full); |
2407 | sigfillset (&full); |
2264 | sigprocmask (SIG_SETMASK, &full, &prev); |
2408 | sigprocmask (SIG_SETMASK, &full, &prev); |
2265 | #endif |
2409 | #endif |
2266 | |
2410 | |
2267 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
2411 | array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); |
2268 | |
2412 | |
2269 | #ifndef _WIN32 |
2413 | #ifndef _WIN32 |
2270 | sigprocmask (SIG_SETMASK, &prev, 0); |
2414 | sigprocmask (SIG_SETMASK, &prev, 0); |
2271 | #endif |
2415 | #endif |
2272 | } |
2416 | } |
… | |
… | |
2310 | |
2454 | |
2311 | void |
2455 | void |
2312 | ev_child_start (EV_P_ ev_child *w) |
2456 | ev_child_start (EV_P_ ev_child *w) |
2313 | { |
2457 | { |
2314 | #if EV_MULTIPLICITY |
2458 | #if EV_MULTIPLICITY |
2315 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2459 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2316 | #endif |
2460 | #endif |
2317 | if (expect_false (ev_is_active (w))) |
2461 | if (expect_false (ev_is_active (w))) |
2318 | return; |
2462 | return; |
2319 | |
2463 | |
2320 | EV_FREQUENT_CHECK; |
2464 | EV_FREQUENT_CHECK; |
… | |
… | |
2345 | # ifdef _WIN32 |
2489 | # ifdef _WIN32 |
2346 | # undef lstat |
2490 | # undef lstat |
2347 | # define lstat(a,b) _stati64 (a,b) |
2491 | # define lstat(a,b) _stati64 (a,b) |
2348 | # endif |
2492 | # endif |
2349 | |
2493 | |
2350 | #define DEF_STAT_INTERVAL 5.0074891 |
2494 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
2495 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
2351 | #define MIN_STAT_INTERVAL 0.1074891 |
2496 | #define MIN_STAT_INTERVAL 0.1074891 |
2352 | |
2497 | |
2353 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2498 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2354 | |
2499 | |
2355 | #if EV_USE_INOTIFY |
2500 | #if EV_USE_INOTIFY |
2356 | # define EV_INOTIFY_BUFSIZE 8192 |
2501 | # define EV_INOTIFY_BUFSIZE 8192 |
… | |
… | |
2360 | { |
2505 | { |
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); |
2506 | 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 | |
2507 | |
2363 | if (w->wd < 0) |
2508 | if (w->wd < 0) |
2364 | { |
2509 | { |
|
|
2510 | 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 */ |
2511 | ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2366 | |
2512 | |
2367 | /* monitor some parent directory for speedup hints */ |
2513 | /* monitor some parent directory for speedup hints */ |
2368 | /* note that exceeding the hardcoded limit is not a correctness issue, */ |
2514 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2369 | /* but an efficiency issue only */ |
2515 | /* but an efficiency issue only */ |
2370 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2516 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2371 | { |
2517 | { |
2372 | char path [4096]; |
2518 | char path [4096]; |
2373 | strcpy (path, w->path); |
2519 | strcpy (path, w->path); |
… | |
… | |
2377 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2523 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2378 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2524 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2379 | |
2525 | |
2380 | char *pend = strrchr (path, '/'); |
2526 | char *pend = strrchr (path, '/'); |
2381 | |
2527 | |
2382 | if (!pend) |
2528 | if (!pend || pend == path) |
2383 | break; /* whoops, no '/', complain to your admin */ |
2529 | break; |
2384 | |
2530 | |
2385 | *pend = 0; |
2531 | *pend = 0; |
2386 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2532 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2387 | } |
2533 | } |
2388 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2534 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2389 | } |
2535 | } |
2390 | } |
2536 | } |
2391 | else |
|
|
2392 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
2393 | |
2537 | |
2394 | if (w->wd >= 0) |
2538 | if (w->wd >= 0) |
|
|
2539 | { |
2395 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2540 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
2541 | |
|
|
2542 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
2543 | /* unless the filesystem it known to be local, we therefore still poll */ |
|
|
2544 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2545 | struct statfs sfs; |
|
|
2546 | |
|
|
2547 | if (fs_2625 && !statfs (w->path, &sfs)) |
|
|
2548 | if (sfs.f_type == 0x1373 /* devfs */ |
|
|
2549 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2550 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2551 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2552 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2553 | || sfs.f_type == 0x58465342 /* xfs */) |
|
|
2554 | return; |
|
|
2555 | |
|
|
2556 | w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2557 | ev_timer_again (EV_A_ &w->timer); |
|
|
2558 | } |
2396 | } |
2559 | } |
2397 | |
2560 | |
2398 | static void noinline |
2561 | static void noinline |
2399 | infy_del (EV_P_ ev_stat *w) |
2562 | infy_del (EV_P_ ev_stat *w) |
2400 | { |
2563 | { |
… | |
… | |
2414 | |
2577 | |
2415 | static void noinline |
2578 | static void noinline |
2416 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2579 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2417 | { |
2580 | { |
2418 | if (slot < 0) |
2581 | if (slot < 0) |
2419 | /* overflow, need to check for all hahs slots */ |
2582 | /* overflow, need to check for all hash slots */ |
2420 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2583 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2421 | infy_wd (EV_A_ slot, wd, ev); |
2584 | infy_wd (EV_A_ slot, wd, ev); |
2422 | else |
2585 | else |
2423 | { |
2586 | { |
2424 | WL w_; |
2587 | WL w_; |
… | |
… | |
2430 | |
2593 | |
2431 | if (w->wd == wd || wd == -1) |
2594 | if (w->wd == wd || wd == -1) |
2432 | { |
2595 | { |
2433 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2596 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2434 | { |
2597 | { |
|
|
2598 | wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2435 | w->wd = -1; |
2599 | w->wd = -1; |
2436 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2600 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2437 | } |
2601 | } |
2438 | |
2602 | |
2439 | stat_timer_cb (EV_A_ &w->timer, 0); |
2603 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2452 | |
2616 | |
2453 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
2617 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
2454 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
2618 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
2455 | } |
2619 | } |
2456 | |
2620 | |
2457 | void inline_size |
2621 | inline_size void |
|
|
2622 | check_2625 (EV_P) |
|
|
2623 | { |
|
|
2624 | /* kernels < 2.6.25 are borked |
|
|
2625 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
|
|
2626 | */ |
|
|
2627 | struct utsname buf; |
|
|
2628 | int major, minor, micro; |
|
|
2629 | |
|
|
2630 | if (uname (&buf)) |
|
|
2631 | return; |
|
|
2632 | |
|
|
2633 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
|
|
2634 | return; |
|
|
2635 | |
|
|
2636 | if (major < 2 |
|
|
2637 | || (major == 2 && minor < 6) |
|
|
2638 | || (major == 2 && minor == 6 && micro < 25)) |
|
|
2639 | return; |
|
|
2640 | |
|
|
2641 | fs_2625 = 1; |
|
|
2642 | } |
|
|
2643 | |
|
|
2644 | inline_size void |
2458 | infy_init (EV_P) |
2645 | infy_init (EV_P) |
2459 | { |
2646 | { |
2460 | if (fs_fd != -2) |
2647 | if (fs_fd != -2) |
2461 | return; |
2648 | return; |
|
|
2649 | |
|
|
2650 | fs_fd = -1; |
|
|
2651 | |
|
|
2652 | check_2625 (EV_A); |
2462 | |
2653 | |
2463 | fs_fd = inotify_init (); |
2654 | fs_fd = inotify_init (); |
2464 | |
2655 | |
2465 | if (fs_fd >= 0) |
2656 | if (fs_fd >= 0) |
2466 | { |
2657 | { |
… | |
… | |
2468 | ev_set_priority (&fs_w, EV_MAXPRI); |
2659 | ev_set_priority (&fs_w, EV_MAXPRI); |
2469 | ev_io_start (EV_A_ &fs_w); |
2660 | ev_io_start (EV_A_ &fs_w); |
2470 | } |
2661 | } |
2471 | } |
2662 | } |
2472 | |
2663 | |
2473 | void inline_size |
2664 | inline_size void |
2474 | infy_fork (EV_P) |
2665 | infy_fork (EV_P) |
2475 | { |
2666 | { |
2476 | int slot; |
2667 | int slot; |
2477 | |
2668 | |
2478 | if (fs_fd < 0) |
2669 | if (fs_fd < 0) |
… | |
… | |
2494 | w->wd = -1; |
2685 | w->wd = -1; |
2495 | |
2686 | |
2496 | if (fs_fd >= 0) |
2687 | if (fs_fd >= 0) |
2497 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2688 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2498 | else |
2689 | else |
2499 | ev_timer_start (EV_A_ &w->timer); |
2690 | ev_timer_again (EV_A_ &w->timer); |
2500 | } |
2691 | } |
2501 | |
|
|
2502 | } |
2692 | } |
2503 | } |
2693 | } |
2504 | |
2694 | |
|
|
2695 | #endif |
|
|
2696 | |
|
|
2697 | #ifdef _WIN32 |
|
|
2698 | # define EV_LSTAT(p,b) _stati64 (p, b) |
|
|
2699 | #else |
|
|
2700 | # define EV_LSTAT(p,b) lstat (p, b) |
2505 | #endif |
2701 | #endif |
2506 | |
2702 | |
2507 | void |
2703 | void |
2508 | ev_stat_stat (EV_P_ ev_stat *w) |
2704 | ev_stat_stat (EV_P_ ev_stat *w) |
2509 | { |
2705 | { |
… | |
… | |
2536 | || w->prev.st_atime != w->attr.st_atime |
2732 | || w->prev.st_atime != w->attr.st_atime |
2537 | || w->prev.st_mtime != w->attr.st_mtime |
2733 | || w->prev.st_mtime != w->attr.st_mtime |
2538 | || w->prev.st_ctime != w->attr.st_ctime |
2734 | || w->prev.st_ctime != w->attr.st_ctime |
2539 | ) { |
2735 | ) { |
2540 | #if EV_USE_INOTIFY |
2736 | #if EV_USE_INOTIFY |
|
|
2737 | if (fs_fd >= 0) |
|
|
2738 | { |
2541 | infy_del (EV_A_ w); |
2739 | infy_del (EV_A_ w); |
2542 | infy_add (EV_A_ w); |
2740 | infy_add (EV_A_ w); |
2543 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
2741 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
2742 | } |
2544 | #endif |
2743 | #endif |
2545 | |
2744 | |
2546 | ev_feed_event (EV_A_ w, EV_STAT); |
2745 | ev_feed_event (EV_A_ w, EV_STAT); |
2547 | } |
2746 | } |
2548 | } |
2747 | } |
… | |
… | |
2551 | ev_stat_start (EV_P_ ev_stat *w) |
2750 | ev_stat_start (EV_P_ ev_stat *w) |
2552 | { |
2751 | { |
2553 | if (expect_false (ev_is_active (w))) |
2752 | if (expect_false (ev_is_active (w))) |
2554 | return; |
2753 | return; |
2555 | |
2754 | |
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); |
2755 | ev_stat_stat (EV_A_ w); |
2561 | |
2756 | |
|
|
2757 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
2562 | if (w->interval < MIN_STAT_INTERVAL) |
2758 | w->interval = MIN_STAT_INTERVAL; |
2563 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2564 | |
2759 | |
2565 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
2760 | 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)); |
2761 | ev_set_priority (&w->timer, ev_priority (w)); |
2567 | |
2762 | |
2568 | #if EV_USE_INOTIFY |
2763 | #if EV_USE_INOTIFY |
2569 | infy_init (EV_A); |
2764 | infy_init (EV_A); |
2570 | |
2765 | |
2571 | if (fs_fd >= 0) |
2766 | if (fs_fd >= 0) |
2572 | infy_add (EV_A_ w); |
2767 | infy_add (EV_A_ w); |
2573 | else |
2768 | else |
2574 | #endif |
2769 | #endif |
2575 | ev_timer_start (EV_A_ &w->timer); |
2770 | ev_timer_again (EV_A_ &w->timer); |
2576 | |
2771 | |
2577 | ev_start (EV_A_ (W)w, 1); |
2772 | ev_start (EV_A_ (W)w, 1); |
2578 | |
2773 | |
2579 | EV_FREQUENT_CHECK; |
2774 | EV_FREQUENT_CHECK; |
2580 | } |
2775 | } |
… | |
… | |
2750 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
2945 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
2751 | } |
2946 | } |
2752 | } |
2947 | } |
2753 | } |
2948 | } |
2754 | |
2949 | |
|
|
2950 | static void |
|
|
2951 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
|
|
2952 | { |
|
|
2953 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
|
|
2954 | |
|
|
2955 | ev_embed_stop (EV_A_ w); |
|
|
2956 | |
|
|
2957 | { |
|
|
2958 | struct ev_loop *loop = w->other; |
|
|
2959 | |
|
|
2960 | ev_loop_fork (EV_A); |
|
|
2961 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
2962 | } |
|
|
2963 | |
|
|
2964 | ev_embed_start (EV_A_ w); |
|
|
2965 | } |
|
|
2966 | |
2755 | #if 0 |
2967 | #if 0 |
2756 | static void |
2968 | static void |
2757 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
2969 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
2758 | { |
2970 | { |
2759 | ev_idle_stop (EV_A_ idle); |
2971 | ev_idle_stop (EV_A_ idle); |
… | |
… | |
2766 | if (expect_false (ev_is_active (w))) |
2978 | if (expect_false (ev_is_active (w))) |
2767 | return; |
2979 | return; |
2768 | |
2980 | |
2769 | { |
2981 | { |
2770 | struct ev_loop *loop = w->other; |
2982 | struct ev_loop *loop = w->other; |
2771 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2983 | 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); |
2984 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2773 | } |
2985 | } |
2774 | |
2986 | |
2775 | EV_FREQUENT_CHECK; |
2987 | EV_FREQUENT_CHECK; |
2776 | |
2988 | |
… | |
… | |
2779 | |
2991 | |
2780 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
2992 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
2781 | ev_set_priority (&w->prepare, EV_MINPRI); |
2993 | ev_set_priority (&w->prepare, EV_MINPRI); |
2782 | ev_prepare_start (EV_A_ &w->prepare); |
2994 | ev_prepare_start (EV_A_ &w->prepare); |
2783 | |
2995 | |
|
|
2996 | ev_fork_init (&w->fork, embed_fork_cb); |
|
|
2997 | ev_fork_start (EV_A_ &w->fork); |
|
|
2998 | |
2784 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
2999 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
2785 | |
3000 | |
2786 | ev_start (EV_A_ (W)w, 1); |
3001 | ev_start (EV_A_ (W)w, 1); |
2787 | |
3002 | |
2788 | EV_FREQUENT_CHECK; |
3003 | EV_FREQUENT_CHECK; |
… | |
… | |
2795 | if (expect_false (!ev_is_active (w))) |
3010 | if (expect_false (!ev_is_active (w))) |
2796 | return; |
3011 | return; |
2797 | |
3012 | |
2798 | EV_FREQUENT_CHECK; |
3013 | EV_FREQUENT_CHECK; |
2799 | |
3014 | |
2800 | ev_io_stop (EV_A_ &w->io); |
3015 | ev_io_stop (EV_A_ &w->io); |
2801 | ev_prepare_stop (EV_A_ &w->prepare); |
3016 | ev_prepare_stop (EV_A_ &w->prepare); |
2802 | |
3017 | ev_fork_stop (EV_A_ &w->fork); |
2803 | ev_stop (EV_A_ (W)w); |
|
|
2804 | |
3018 | |
2805 | EV_FREQUENT_CHECK; |
3019 | EV_FREQUENT_CHECK; |
2806 | } |
3020 | } |
2807 | #endif |
3021 | #endif |
2808 | |
3022 | |
… | |
… | |
2905 | once_cb (EV_P_ struct ev_once *once, int revents) |
3119 | once_cb (EV_P_ struct ev_once *once, int revents) |
2906 | { |
3120 | { |
2907 | void (*cb)(int revents, void *arg) = once->cb; |
3121 | void (*cb)(int revents, void *arg) = once->cb; |
2908 | void *arg = once->arg; |
3122 | void *arg = once->arg; |
2909 | |
3123 | |
2910 | ev_io_stop (EV_A_ &once->io); |
3124 | ev_io_stop (EV_A_ &once->io); |
2911 | ev_timer_stop (EV_A_ &once->to); |
3125 | ev_timer_stop (EV_A_ &once->to); |
2912 | ev_free (once); |
3126 | ev_free (once); |
2913 | |
3127 | |
2914 | cb (revents, arg); |
3128 | cb (revents, arg); |
2915 | } |
3129 | } |
2916 | |
3130 | |
2917 | static void |
3131 | static void |
2918 | once_cb_io (EV_P_ ev_io *w, int revents) |
3132 | once_cb_io (EV_P_ ev_io *w, int revents) |
2919 | { |
3133 | { |
2920 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
3134 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)); |
|
|
3135 | |
|
|
3136 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to)); |
2921 | } |
3137 | } |
2922 | |
3138 | |
2923 | static void |
3139 | static void |
2924 | once_cb_to (EV_P_ ev_timer *w, int revents) |
3140 | once_cb_to (EV_P_ ev_timer *w, int revents) |
2925 | { |
3141 | { |
2926 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
3142 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)); |
|
|
3143 | |
|
|
3144 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
2927 | } |
3145 | } |
2928 | |
3146 | |
2929 | void |
3147 | void |
2930 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
3148 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
2931 | { |
3149 | { |
… | |
… | |
2953 | ev_timer_set (&once->to, timeout, 0.); |
3171 | ev_timer_set (&once->to, timeout, 0.); |
2954 | ev_timer_start (EV_A_ &once->to); |
3172 | ev_timer_start (EV_A_ &once->to); |
2955 | } |
3173 | } |
2956 | } |
3174 | } |
2957 | |
3175 | |
|
|
3176 | /*****************************************************************************/ |
|
|
3177 | |
|
|
3178 | #if 0 |
|
|
3179 | void |
|
|
3180 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
|
|
3181 | { |
|
|
3182 | int i, j; |
|
|
3183 | ev_watcher_list *wl, *wn; |
|
|
3184 | |
|
|
3185 | if (types & (EV_IO | EV_EMBED)) |
|
|
3186 | for (i = 0; i < anfdmax; ++i) |
|
|
3187 | for (wl = anfds [i].head; wl; ) |
|
|
3188 | { |
|
|
3189 | wn = wl->next; |
|
|
3190 | |
|
|
3191 | #if EV_EMBED_ENABLE |
|
|
3192 | if (ev_cb ((ev_io *)wl) == embed_io_cb) |
|
|
3193 | { |
|
|
3194 | if (types & EV_EMBED) |
|
|
3195 | cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io)); |
|
|
3196 | } |
|
|
3197 | else |
|
|
3198 | #endif |
|
|
3199 | #if EV_USE_INOTIFY |
|
|
3200 | if (ev_cb ((ev_io *)wl) == infy_cb) |
|
|
3201 | ; |
|
|
3202 | else |
|
|
3203 | #endif |
|
|
3204 | if ((ev_io *)wl != &pipeev) |
|
|
3205 | if (types & EV_IO) |
|
|
3206 | cb (EV_A_ EV_IO, wl); |
|
|
3207 | |
|
|
3208 | wl = wn; |
|
|
3209 | } |
|
|
3210 | |
|
|
3211 | if (types & (EV_TIMER | EV_STAT)) |
|
|
3212 | for (i = timercnt + HEAP0; i-- > HEAP0; ) |
|
|
3213 | #if EV_STAT_ENABLE |
|
|
3214 | /*TODO: timer is not always active*/ |
|
|
3215 | if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb) |
|
|
3216 | { |
|
|
3217 | if (types & EV_STAT) |
|
|
3218 | cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer)); |
|
|
3219 | } |
|
|
3220 | else |
|
|
3221 | #endif |
|
|
3222 | if (types & EV_TIMER) |
|
|
3223 | cb (EV_A_ EV_TIMER, ANHE_w (timers [i])); |
|
|
3224 | |
|
|
3225 | #if EV_PERIODIC_ENABLE |
|
|
3226 | if (types & EV_PERIODIC) |
|
|
3227 | for (i = periodiccnt + HEAP0; i-- > HEAP0; ) |
|
|
3228 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
|
|
3229 | #endif |
|
|
3230 | |
|
|
3231 | #if EV_IDLE_ENABLE |
|
|
3232 | if (types & EV_IDLE) |
|
|
3233 | for (j = NUMPRI; i--; ) |
|
|
3234 | for (i = idlecnt [j]; i--; ) |
|
|
3235 | cb (EV_A_ EV_IDLE, idles [j][i]); |
|
|
3236 | #endif |
|
|
3237 | |
|
|
3238 | #if EV_FORK_ENABLE |
|
|
3239 | if (types & EV_FORK) |
|
|
3240 | for (i = forkcnt; i--; ) |
|
|
3241 | if (ev_cb (forks [i]) != embed_fork_cb) |
|
|
3242 | cb (EV_A_ EV_FORK, forks [i]); |
|
|
3243 | #endif |
|
|
3244 | |
|
|
3245 | #if EV_ASYNC_ENABLE |
|
|
3246 | if (types & EV_ASYNC) |
|
|
3247 | for (i = asynccnt; i--; ) |
|
|
3248 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
|
|
3249 | #endif |
|
|
3250 | |
|
|
3251 | if (types & EV_PREPARE) |
|
|
3252 | for (i = preparecnt; i--; ) |
|
|
3253 | #if EV_EMBED_ENABLE |
|
|
3254 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
|
|
3255 | #endif |
|
|
3256 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
3257 | |
|
|
3258 | if (types & EV_CHECK) |
|
|
3259 | for (i = checkcnt; i--; ) |
|
|
3260 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
3261 | |
|
|
3262 | if (types & EV_SIGNAL) |
|
|
3263 | for (i = 0; i < signalmax; ++i) |
|
|
3264 | for (wl = signals [i].head; wl; ) |
|
|
3265 | { |
|
|
3266 | wn = wl->next; |
|
|
3267 | cb (EV_A_ EV_SIGNAL, wl); |
|
|
3268 | wl = wn; |
|
|
3269 | } |
|
|
3270 | |
|
|
3271 | if (types & EV_CHILD) |
|
|
3272 | for (i = EV_PID_HASHSIZE; i--; ) |
|
|
3273 | for (wl = childs [i]; wl; ) |
|
|
3274 | { |
|
|
3275 | wn = wl->next; |
|
|
3276 | cb (EV_A_ EV_CHILD, wl); |
|
|
3277 | wl = wn; |
|
|
3278 | } |
|
|
3279 | /* EV_STAT 0x00001000 /* stat data changed */ |
|
|
3280 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
|
|
3281 | } |
|
|
3282 | #endif |
|
|
3283 | |
2958 | #if EV_MULTIPLICITY |
3284 | #if EV_MULTIPLICITY |
2959 | #include "ev_wrap.h" |
3285 | #include "ev_wrap.h" |
2960 | #endif |
3286 | #endif |
2961 | |
3287 | |
2962 | #ifdef __cplusplus |
3288 | #ifdef __cplusplus |