1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008 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 |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * modification, are permitted provided that the following conditions are |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * met: |
9 | * |
|
|
10 | * 1. Redistributions of source code must retain the above copyright notice, |
|
|
11 | * this list of conditions and the following disclaimer. |
|
|
12 | * |
|
|
13 | * 2. Redistributions in binary form must reproduce the above copyright |
|
|
14 | * notice, this list of conditions and the following disclaimer in the |
|
|
15 | * documentation and/or other materials provided with the distribution. |
|
|
16 | * |
|
|
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
|
|
18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
|
|
19 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
|
|
20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
|
|
21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
|
|
22 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
|
|
23 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
|
|
24 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
|
|
25 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
|
|
26 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
10 | * |
27 | * |
11 | * * Redistributions of source code must retain the above copyright |
28 | * Alternatively, the contents of this file may be used under the terms of |
12 | * notice, this list of conditions and the following disclaimer. |
29 | * the GNU General Public License ("GPL") version 2 or any later version, |
13 | * |
30 | * in which case the provisions of the GPL are applicable instead of |
14 | * * Redistributions in binary form must reproduce the above |
31 | * the above. If you wish to allow the use of your version of this file |
15 | * copyright notice, this list of conditions and the following |
32 | * only under the terms of the GPL and not to allow others to use your |
16 | * disclaimer in the documentation and/or other materials provided |
33 | * version of this file under the BSD license, indicate your decision |
17 | * with the distribution. |
34 | * by deleting the provisions above and replace them with the notice |
18 | * |
35 | * and other provisions required by the GPL. If you do not delete the |
19 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
36 | * provisions above, a recipient may use your version of this file under |
20 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
37 | * either the BSD or the GPL. |
21 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
|
|
22 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
|
|
23 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
|
|
24 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
|
|
25 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
|
|
26 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
|
|
27 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
|
|
28 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
|
|
29 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
|
|
30 | */ |
38 | */ |
31 | |
39 | |
32 | #ifdef __cplusplus |
40 | #ifdef __cplusplus |
33 | extern "C" { |
41 | extern "C" { |
34 | #endif |
42 | #endif |
… | |
… | |
51 | # ifndef EV_USE_MONOTONIC |
59 | # ifndef EV_USE_MONOTONIC |
52 | # define EV_USE_MONOTONIC 0 |
60 | # define EV_USE_MONOTONIC 0 |
53 | # endif |
61 | # endif |
54 | # ifndef EV_USE_REALTIME |
62 | # ifndef EV_USE_REALTIME |
55 | # define EV_USE_REALTIME 0 |
63 | # define EV_USE_REALTIME 0 |
|
|
64 | # endif |
|
|
65 | # endif |
|
|
66 | |
|
|
67 | # ifndef EV_USE_NANOSLEEP |
|
|
68 | # if HAVE_NANOSLEEP |
|
|
69 | # define EV_USE_NANOSLEEP 1 |
|
|
70 | # else |
|
|
71 | # define EV_USE_NANOSLEEP 0 |
56 | # endif |
72 | # endif |
57 | # endif |
73 | # endif |
58 | |
74 | |
59 | # ifndef EV_USE_SELECT |
75 | # ifndef EV_USE_SELECT |
60 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
76 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
… | |
… | |
94 | # else |
110 | # else |
95 | # define EV_USE_PORT 0 |
111 | # define EV_USE_PORT 0 |
96 | # endif |
112 | # endif |
97 | # endif |
113 | # endif |
98 | |
114 | |
|
|
115 | # ifndef EV_USE_INOTIFY |
|
|
116 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
|
|
117 | # define EV_USE_INOTIFY 1 |
|
|
118 | # else |
|
|
119 | # define EV_USE_INOTIFY 0 |
|
|
120 | # endif |
|
|
121 | # endif |
|
|
122 | |
99 | #endif |
123 | #endif |
100 | |
124 | |
101 | #include <math.h> |
125 | #include <math.h> |
102 | #include <stdlib.h> |
126 | #include <stdlib.h> |
103 | #include <fcntl.h> |
127 | #include <fcntl.h> |
… | |
… | |
109 | #include <errno.h> |
133 | #include <errno.h> |
110 | #include <sys/types.h> |
134 | #include <sys/types.h> |
111 | #include <time.h> |
135 | #include <time.h> |
112 | |
136 | |
113 | #include <signal.h> |
137 | #include <signal.h> |
|
|
138 | |
|
|
139 | #ifdef EV_H |
|
|
140 | # include EV_H |
|
|
141 | #else |
|
|
142 | # include "ev.h" |
|
|
143 | #endif |
114 | |
144 | |
115 | #ifndef _WIN32 |
145 | #ifndef _WIN32 |
116 | # include <sys/time.h> |
146 | # include <sys/time.h> |
117 | # include <sys/wait.h> |
147 | # include <sys/wait.h> |
118 | # include <unistd.h> |
148 | # include <unistd.h> |
… | |
… | |
132 | |
162 | |
133 | #ifndef EV_USE_REALTIME |
163 | #ifndef EV_USE_REALTIME |
134 | # define EV_USE_REALTIME 0 |
164 | # define EV_USE_REALTIME 0 |
135 | #endif |
165 | #endif |
136 | |
166 | |
|
|
167 | #ifndef EV_USE_NANOSLEEP |
|
|
168 | # define EV_USE_NANOSLEEP 0 |
|
|
169 | #endif |
|
|
170 | |
137 | #ifndef EV_USE_SELECT |
171 | #ifndef EV_USE_SELECT |
138 | # define EV_USE_SELECT 1 |
172 | # define EV_USE_SELECT 1 |
139 | #endif |
173 | #endif |
140 | |
174 | |
141 | #ifndef EV_USE_POLL |
175 | #ifndef EV_USE_POLL |
… | |
… | |
156 | |
190 | |
157 | #ifndef EV_USE_PORT |
191 | #ifndef EV_USE_PORT |
158 | # define EV_USE_PORT 0 |
192 | # define EV_USE_PORT 0 |
159 | #endif |
193 | #endif |
160 | |
194 | |
|
|
195 | #ifndef EV_USE_INOTIFY |
|
|
196 | # define EV_USE_INOTIFY 0 |
|
|
197 | #endif |
|
|
198 | |
|
|
199 | #ifndef EV_PID_HASHSIZE |
|
|
200 | # if EV_MINIMAL |
|
|
201 | # define EV_PID_HASHSIZE 1 |
|
|
202 | # else |
|
|
203 | # define EV_PID_HASHSIZE 16 |
|
|
204 | # endif |
|
|
205 | #endif |
|
|
206 | |
|
|
207 | #ifndef EV_INOTIFY_HASHSIZE |
|
|
208 | # if EV_MINIMAL |
|
|
209 | # define EV_INOTIFY_HASHSIZE 1 |
|
|
210 | # else |
|
|
211 | # define EV_INOTIFY_HASHSIZE 16 |
|
|
212 | # endif |
|
|
213 | #endif |
|
|
214 | |
161 | /**/ |
215 | /**/ |
162 | |
216 | |
163 | #ifndef CLOCK_MONOTONIC |
217 | #ifndef CLOCK_MONOTONIC |
164 | # undef EV_USE_MONOTONIC |
218 | # undef EV_USE_MONOTONIC |
165 | # define EV_USE_MONOTONIC 0 |
219 | # define EV_USE_MONOTONIC 0 |
… | |
… | |
168 | #ifndef CLOCK_REALTIME |
222 | #ifndef CLOCK_REALTIME |
169 | # undef EV_USE_REALTIME |
223 | # undef EV_USE_REALTIME |
170 | # define EV_USE_REALTIME 0 |
224 | # define EV_USE_REALTIME 0 |
171 | #endif |
225 | #endif |
172 | |
226 | |
|
|
227 | #if !EV_STAT_ENABLE |
|
|
228 | # undef EV_USE_INOTIFY |
|
|
229 | # define EV_USE_INOTIFY 0 |
|
|
230 | #endif |
|
|
231 | |
|
|
232 | #if !EV_USE_NANOSLEEP |
|
|
233 | # ifndef _WIN32 |
|
|
234 | # include <sys/select.h> |
|
|
235 | # endif |
|
|
236 | #endif |
|
|
237 | |
|
|
238 | #if EV_USE_INOTIFY |
|
|
239 | # include <sys/inotify.h> |
|
|
240 | #endif |
|
|
241 | |
173 | #if EV_SELECT_IS_WINSOCKET |
242 | #if EV_SELECT_IS_WINSOCKET |
174 | # include <winsock.h> |
243 | # include <winsock.h> |
175 | #endif |
244 | #endif |
176 | |
245 | |
177 | /**/ |
246 | /**/ |
178 | |
247 | |
|
|
248 | /* |
|
|
249 | * This is used to avoid floating point rounding problems. |
|
|
250 | * It is added to ev_rt_now when scheduling periodics |
|
|
251 | * to ensure progress, time-wise, even when rounding |
|
|
252 | * errors are against us. |
|
|
253 | * This value is good at least till the year 4000. |
|
|
254 | * Better solutions welcome. |
|
|
255 | */ |
|
|
256 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
|
|
257 | |
179 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
258 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
180 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
259 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
181 | #define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */ |
|
|
182 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds */ |
260 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
183 | |
261 | |
184 | #ifdef EV_H |
|
|
185 | # include EV_H |
|
|
186 | #else |
|
|
187 | # include "ev.h" |
|
|
188 | #endif |
|
|
189 | |
|
|
190 | #if __GNUC__ >= 3 |
262 | #if __GNUC__ >= 4 |
191 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
263 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
192 | # define inline_size static inline /* inline for codesize */ |
|
|
193 | # if EV_MINIMAL |
|
|
194 | # define noinline __attribute__ ((noinline)) |
264 | # define noinline __attribute__ ((noinline)) |
195 | # define inline_speed static noinline |
|
|
196 | # else |
|
|
197 | # define noinline |
|
|
198 | # define inline_speed static inline |
|
|
199 | # endif |
|
|
200 | #else |
265 | #else |
201 | # define expect(expr,value) (expr) |
266 | # define expect(expr,value) (expr) |
202 | # define inline_speed static |
|
|
203 | # define inline_minimal static |
|
|
204 | # define noinline |
267 | # define noinline |
|
|
268 | # if __STDC_VERSION__ < 199901L |
|
|
269 | # define inline |
|
|
270 | # endif |
205 | #endif |
271 | #endif |
206 | |
272 | |
207 | #define expect_false(expr) expect ((expr) != 0, 0) |
273 | #define expect_false(expr) expect ((expr) != 0, 0) |
208 | #define expect_true(expr) expect ((expr) != 0, 1) |
274 | #define expect_true(expr) expect ((expr) != 0, 1) |
|
|
275 | #define inline_size static inline |
|
|
276 | |
|
|
277 | #if EV_MINIMAL |
|
|
278 | # define inline_speed static noinline |
|
|
279 | #else |
|
|
280 | # define inline_speed static inline |
|
|
281 | #endif |
209 | |
282 | |
210 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
283 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
211 | #define ABSPRI(w) ((w)->priority - EV_MINPRI) |
284 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
212 | |
285 | |
213 | #define EMPTY0 /* required for microsofts broken pseudo-c compiler */ |
286 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
214 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
287 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
215 | |
288 | |
216 | typedef ev_watcher *W; |
289 | typedef ev_watcher *W; |
217 | typedef ev_watcher_list *WL; |
290 | typedef ev_watcher_list *WL; |
218 | typedef ev_watcher_time *WT; |
291 | typedef ev_watcher_time *WT; |
219 | |
292 | |
|
|
293 | #if EV_USE_MONOTONIC |
|
|
294 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
|
|
295 | /* giving it a reasonably high chance of working on typical architetcures */ |
220 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
296 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
|
|
297 | #endif |
221 | |
298 | |
222 | #ifdef _WIN32 |
299 | #ifdef _WIN32 |
223 | # include "ev_win32.c" |
300 | # include "ev_win32.c" |
224 | #endif |
301 | #endif |
225 | |
302 | |
… | |
… | |
254 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
331 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
255 | { |
332 | { |
256 | alloc = cb; |
333 | alloc = cb; |
257 | } |
334 | } |
258 | |
335 | |
259 | static void * |
336 | inline_speed void * |
260 | ev_realloc (void *ptr, long size) |
337 | ev_realloc (void *ptr, long size) |
261 | { |
338 | { |
262 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
339 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
263 | |
340 | |
264 | if (!ptr && size) |
341 | if (!ptr && size) |
… | |
… | |
288 | typedef struct |
365 | typedef struct |
289 | { |
366 | { |
290 | W w; |
367 | W w; |
291 | int events; |
368 | int events; |
292 | } ANPENDING; |
369 | } ANPENDING; |
|
|
370 | |
|
|
371 | #if EV_USE_INOTIFY |
|
|
372 | typedef struct |
|
|
373 | { |
|
|
374 | WL head; |
|
|
375 | } ANFS; |
|
|
376 | #endif |
293 | |
377 | |
294 | #if EV_MULTIPLICITY |
378 | #if EV_MULTIPLICITY |
295 | |
379 | |
296 | struct ev_loop |
380 | struct ev_loop |
297 | { |
381 | { |
… | |
… | |
354 | { |
438 | { |
355 | return ev_rt_now; |
439 | return ev_rt_now; |
356 | } |
440 | } |
357 | #endif |
441 | #endif |
358 | |
442 | |
359 | #define array_roundsize(type,n) (((n) | 4) & ~3) |
443 | void |
|
|
444 | ev_sleep (ev_tstamp delay) |
|
|
445 | { |
|
|
446 | if (delay > 0.) |
|
|
447 | { |
|
|
448 | #if EV_USE_NANOSLEEP |
|
|
449 | struct timespec ts; |
|
|
450 | |
|
|
451 | ts.tv_sec = (time_t)delay; |
|
|
452 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
453 | |
|
|
454 | nanosleep (&ts, 0); |
|
|
455 | #elif defined(_WIN32) |
|
|
456 | Sleep ((unsigned long)(delay * 1e3)); |
|
|
457 | #else |
|
|
458 | struct timeval tv; |
|
|
459 | |
|
|
460 | tv.tv_sec = (time_t)delay; |
|
|
461 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
|
|
462 | |
|
|
463 | select (0, 0, 0, 0, &tv); |
|
|
464 | #endif |
|
|
465 | } |
|
|
466 | } |
|
|
467 | |
|
|
468 | /*****************************************************************************/ |
|
|
469 | |
|
|
470 | int inline_size |
|
|
471 | array_nextsize (int elem, int cur, int cnt) |
|
|
472 | { |
|
|
473 | int ncur = cur + 1; |
|
|
474 | |
|
|
475 | do |
|
|
476 | ncur <<= 1; |
|
|
477 | while (cnt > ncur); |
|
|
478 | |
|
|
479 | /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */ |
|
|
480 | if (elem * ncur > 4096) |
|
|
481 | { |
|
|
482 | ncur *= elem; |
|
|
483 | ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095; |
|
|
484 | ncur = ncur - sizeof (void *) * 4; |
|
|
485 | ncur /= elem; |
|
|
486 | } |
|
|
487 | |
|
|
488 | return ncur; |
|
|
489 | } |
|
|
490 | |
|
|
491 | static noinline void * |
|
|
492 | array_realloc (int elem, void *base, int *cur, int cnt) |
|
|
493 | { |
|
|
494 | *cur = array_nextsize (elem, *cur, cnt); |
|
|
495 | return ev_realloc (base, elem * *cur); |
|
|
496 | } |
360 | |
497 | |
361 | #define array_needsize(type,base,cur,cnt,init) \ |
498 | #define array_needsize(type,base,cur,cnt,init) \ |
362 | if (expect_false ((cnt) > cur)) \ |
499 | if (expect_false ((cnt) > (cur))) \ |
363 | { \ |
500 | { \ |
364 | int newcnt = cur; \ |
501 | int ocur_ = (cur); \ |
365 | do \ |
502 | (base) = (type *)array_realloc \ |
366 | { \ |
503 | (sizeof (type), (base), &(cur), (cnt)); \ |
367 | newcnt = array_roundsize (type, newcnt << 1); \ |
504 | init ((base) + (ocur_), (cur) - ocur_); \ |
368 | } \ |
|
|
369 | while ((cnt) > newcnt); \ |
|
|
370 | \ |
|
|
371 | base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\ |
|
|
372 | init (base + cur, newcnt - cur); \ |
|
|
373 | cur = newcnt; \ |
|
|
374 | } |
505 | } |
375 | |
506 | |
|
|
507 | #if 0 |
376 | #define array_slim(type,stem) \ |
508 | #define array_slim(type,stem) \ |
377 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
509 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
378 | { \ |
510 | { \ |
379 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
511 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
380 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
512 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
381 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
513 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
382 | } |
514 | } |
|
|
515 | #endif |
383 | |
516 | |
384 | #define array_free(stem, idx) \ |
517 | #define array_free(stem, idx) \ |
385 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
518 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
386 | |
519 | |
387 | /*****************************************************************************/ |
520 | /*****************************************************************************/ |
388 | |
521 | |
389 | void noinline |
522 | void noinline |
390 | ev_feed_event (EV_P_ void *w, int revents) |
523 | ev_feed_event (EV_P_ void *w, int revents) |
391 | { |
524 | { |
392 | W w_ = (W)w; |
525 | W w_ = (W)w; |
|
|
526 | int pri = ABSPRI (w_); |
393 | |
527 | |
394 | if (expect_false (w_->pending)) |
528 | if (expect_false (w_->pending)) |
|
|
529 | pendings [pri][w_->pending - 1].events |= revents; |
|
|
530 | else |
395 | { |
531 | { |
|
|
532 | w_->pending = ++pendingcnt [pri]; |
|
|
533 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
|
|
534 | pendings [pri][w_->pending - 1].w = w_; |
396 | pendings [ABSPRI (w_)][w_->pending - 1].events |= revents; |
535 | pendings [pri][w_->pending - 1].events = revents; |
397 | return; |
|
|
398 | } |
536 | } |
399 | |
|
|
400 | w_->pending = ++pendingcnt [ABSPRI (w_)]; |
|
|
401 | array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2); |
|
|
402 | pendings [ABSPRI (w_)][w_->pending - 1].w = w_; |
|
|
403 | pendings [ABSPRI (w_)][w_->pending - 1].events = revents; |
|
|
404 | } |
537 | } |
405 | |
538 | |
406 | void inline_size |
539 | void inline_speed |
407 | queue_events (EV_P_ W *events, int eventcnt, int type) |
540 | queue_events (EV_P_ W *events, int eventcnt, int type) |
408 | { |
541 | { |
409 | int i; |
542 | int i; |
410 | |
543 | |
411 | for (i = 0; i < eventcnt; ++i) |
544 | for (i = 0; i < eventcnt; ++i) |
… | |
… | |
443 | } |
576 | } |
444 | |
577 | |
445 | void |
578 | void |
446 | ev_feed_fd_event (EV_P_ int fd, int revents) |
579 | ev_feed_fd_event (EV_P_ int fd, int revents) |
447 | { |
580 | { |
|
|
581 | if (fd >= 0 && fd < anfdmax) |
448 | fd_event (EV_A_ fd, revents); |
582 | fd_event (EV_A_ fd, revents); |
449 | } |
583 | } |
450 | |
584 | |
451 | void inline_size |
585 | void inline_size |
452 | fd_reify (EV_P) |
586 | fd_reify (EV_P) |
453 | { |
587 | { |
… | |
… | |
457 | { |
591 | { |
458 | int fd = fdchanges [i]; |
592 | int fd = fdchanges [i]; |
459 | ANFD *anfd = anfds + fd; |
593 | ANFD *anfd = anfds + fd; |
460 | ev_io *w; |
594 | ev_io *w; |
461 | |
595 | |
462 | int events = 0; |
596 | unsigned char events = 0; |
463 | |
597 | |
464 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
598 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
465 | events |= w->events; |
599 | events |= (unsigned char)w->events; |
466 | |
600 | |
467 | #if EV_SELECT_IS_WINSOCKET |
601 | #if EV_SELECT_IS_WINSOCKET |
468 | if (events) |
602 | if (events) |
469 | { |
603 | { |
470 | unsigned long argp; |
604 | unsigned long argp; |
|
|
605 | #ifdef EV_FD_TO_WIN32_HANDLE |
|
|
606 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
607 | #else |
471 | anfd->handle = _get_osfhandle (fd); |
608 | anfd->handle = _get_osfhandle (fd); |
|
|
609 | #endif |
472 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
610 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
473 | } |
611 | } |
474 | #endif |
612 | #endif |
475 | |
613 | |
|
|
614 | { |
|
|
615 | unsigned char o_events = anfd->events; |
|
|
616 | unsigned char o_reify = anfd->reify; |
|
|
617 | |
476 | anfd->reify = 0; |
618 | anfd->reify = 0; |
477 | |
|
|
478 | backend_modify (EV_A_ fd, anfd->events, events); |
|
|
479 | anfd->events = events; |
619 | anfd->events = events; |
|
|
620 | |
|
|
621 | if (o_events != events || o_reify & EV_IOFDSET) |
|
|
622 | backend_modify (EV_A_ fd, o_events, events); |
|
|
623 | } |
480 | } |
624 | } |
481 | |
625 | |
482 | fdchangecnt = 0; |
626 | fdchangecnt = 0; |
483 | } |
627 | } |
484 | |
628 | |
485 | void inline_size |
629 | void inline_size |
486 | fd_change (EV_P_ int fd) |
630 | fd_change (EV_P_ int fd, int flags) |
487 | { |
631 | { |
488 | if (expect_false (anfds [fd].reify)) |
632 | unsigned char reify = anfds [fd].reify; |
489 | return; |
|
|
490 | |
|
|
491 | anfds [fd].reify = 1; |
633 | anfds [fd].reify |= flags; |
492 | |
634 | |
|
|
635 | if (expect_true (!reify)) |
|
|
636 | { |
493 | ++fdchangecnt; |
637 | ++fdchangecnt; |
494 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
638 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
495 | fdchanges [fdchangecnt - 1] = fd; |
639 | fdchanges [fdchangecnt - 1] = fd; |
|
|
640 | } |
496 | } |
641 | } |
497 | |
642 | |
498 | void inline_speed |
643 | void inline_speed |
499 | fd_kill (EV_P_ int fd) |
644 | fd_kill (EV_P_ int fd) |
500 | { |
645 | { |
… | |
… | |
547 | static void noinline |
692 | static void noinline |
548 | fd_rearm_all (EV_P) |
693 | fd_rearm_all (EV_P) |
549 | { |
694 | { |
550 | int fd; |
695 | int fd; |
551 | |
696 | |
552 | /* this should be highly optimised to not do anything but set a flag */ |
|
|
553 | for (fd = 0; fd < anfdmax; ++fd) |
697 | for (fd = 0; fd < anfdmax; ++fd) |
554 | if (anfds [fd].events) |
698 | if (anfds [fd].events) |
555 | { |
699 | { |
556 | anfds [fd].events = 0; |
700 | anfds [fd].events = 0; |
557 | fd_change (EV_A_ fd); |
701 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
558 | } |
702 | } |
559 | } |
703 | } |
560 | |
704 | |
561 | /*****************************************************************************/ |
705 | /*****************************************************************************/ |
562 | |
706 | |
563 | void inline_speed |
707 | void inline_speed |
564 | upheap (WT *heap, int k) |
708 | upheap (WT *heap, int k) |
565 | { |
709 | { |
566 | WT w = heap [k]; |
710 | WT w = heap [k]; |
567 | |
711 | |
568 | while (k && heap [k >> 1]->at > w->at) |
712 | while (k) |
569 | { |
713 | { |
|
|
714 | int p = (k - 1) >> 1; |
|
|
715 | |
|
|
716 | if (heap [p]->at <= w->at) |
|
|
717 | break; |
|
|
718 | |
570 | heap [k] = heap [k >> 1]; |
719 | heap [k] = heap [p]; |
571 | ((W)heap [k])->active = k + 1; |
720 | ((W)heap [k])->active = k + 1; |
572 | k >>= 1; |
721 | k = p; |
573 | } |
722 | } |
574 | |
723 | |
575 | heap [k] = w; |
724 | heap [k] = w; |
576 | ((W)heap [k])->active = k + 1; |
725 | ((W)heap [k])->active = k + 1; |
577 | |
|
|
578 | } |
726 | } |
579 | |
727 | |
580 | void inline_speed |
728 | void inline_speed |
581 | downheap (WT *heap, int N, int k) |
729 | downheap (WT *heap, int N, int k) |
582 | { |
730 | { |
583 | WT w = heap [k]; |
731 | WT w = heap [k]; |
584 | |
732 | |
585 | while (k < (N >> 1)) |
733 | for (;;) |
586 | { |
734 | { |
587 | int j = k << 1; |
735 | int c = (k << 1) + 1; |
588 | |
736 | |
589 | if (j + 1 < N && heap [j]->at > heap [j + 1]->at) |
737 | if (c >= N) |
590 | ++j; |
|
|
591 | |
|
|
592 | if (w->at <= heap [j]->at) |
|
|
593 | break; |
738 | break; |
594 | |
739 | |
|
|
740 | c += c + 1 < N && heap [c]->at > heap [c + 1]->at |
|
|
741 | ? 1 : 0; |
|
|
742 | |
|
|
743 | if (w->at <= heap [c]->at) |
|
|
744 | break; |
|
|
745 | |
595 | heap [k] = heap [j]; |
746 | heap [k] = heap [c]; |
596 | ((W)heap [k])->active = k + 1; |
747 | ((W)heap [k])->active = k + 1; |
|
|
748 | |
597 | k = j; |
749 | k = c; |
598 | } |
750 | } |
599 | |
751 | |
600 | heap [k] = w; |
752 | heap [k] = w; |
601 | ((W)heap [k])->active = k + 1; |
753 | ((W)heap [k])->active = k + 1; |
602 | } |
754 | } |
… | |
… | |
611 | /*****************************************************************************/ |
763 | /*****************************************************************************/ |
612 | |
764 | |
613 | typedef struct |
765 | typedef struct |
614 | { |
766 | { |
615 | WL head; |
767 | WL head; |
616 | sig_atomic_t volatile gotsig; |
768 | EV_ATOMIC_T gotsig; |
617 | } ANSIG; |
769 | } ANSIG; |
618 | |
770 | |
619 | static ANSIG *signals; |
771 | static ANSIG *signals; |
620 | static int signalmax; |
772 | static int signalmax; |
621 | |
773 | |
622 | static int sigpipe [2]; |
774 | static EV_ATOMIC_T gotsig; |
623 | static sig_atomic_t volatile gotsig; |
|
|
624 | static ev_io sigev; |
|
|
625 | |
775 | |
626 | void inline_size |
776 | void inline_size |
627 | signals_init (ANSIG *base, int count) |
777 | signals_init (ANSIG *base, int count) |
628 | { |
778 | { |
629 | while (count--) |
779 | while (count--) |
… | |
… | |
633 | |
783 | |
634 | ++base; |
784 | ++base; |
635 | } |
785 | } |
636 | } |
786 | } |
637 | |
787 | |
638 | static void |
788 | /*****************************************************************************/ |
639 | sighandler (int signum) |
|
|
640 | { |
|
|
641 | #if _WIN32 |
|
|
642 | signal (signum, sighandler); |
|
|
643 | #endif |
|
|
644 | |
789 | |
645 | signals [signum - 1].gotsig = 1; |
|
|
646 | |
|
|
647 | if (!gotsig) |
|
|
648 | { |
|
|
649 | int old_errno = errno; |
|
|
650 | gotsig = 1; |
|
|
651 | write (sigpipe [1], &signum, 1); |
|
|
652 | errno = old_errno; |
|
|
653 | } |
|
|
654 | } |
|
|
655 | |
|
|
656 | void noinline |
|
|
657 | ev_feed_signal_event (EV_P_ int signum) |
|
|
658 | { |
|
|
659 | WL w; |
|
|
660 | |
|
|
661 | #if EV_MULTIPLICITY |
|
|
662 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
663 | #endif |
|
|
664 | |
|
|
665 | --signum; |
|
|
666 | |
|
|
667 | if (signum < 0 || signum >= signalmax) |
|
|
668 | return; |
|
|
669 | |
|
|
670 | signals [signum].gotsig = 0; |
|
|
671 | |
|
|
672 | for (w = signals [signum].head; w; w = w->next) |
|
|
673 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
674 | } |
|
|
675 | |
|
|
676 | static void |
|
|
677 | sigcb (EV_P_ ev_io *iow, int revents) |
|
|
678 | { |
|
|
679 | int signum; |
|
|
680 | |
|
|
681 | read (sigpipe [0], &revents, 1); |
|
|
682 | gotsig = 0; |
|
|
683 | |
|
|
684 | for (signum = signalmax; signum--; ) |
|
|
685 | if (signals [signum].gotsig) |
|
|
686 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
687 | } |
|
|
688 | |
|
|
689 | void inline_size |
790 | void inline_speed |
690 | fd_intern (int fd) |
791 | fd_intern (int fd) |
691 | { |
792 | { |
692 | #ifdef _WIN32 |
793 | #ifdef _WIN32 |
693 | int arg = 1; |
794 | int arg = 1; |
694 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
795 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
… | |
… | |
697 | fcntl (fd, F_SETFL, O_NONBLOCK); |
798 | fcntl (fd, F_SETFL, O_NONBLOCK); |
698 | #endif |
799 | #endif |
699 | } |
800 | } |
700 | |
801 | |
701 | static void noinline |
802 | static void noinline |
702 | siginit (EV_P) |
803 | evpipe_init (EV_P) |
703 | { |
804 | { |
|
|
805 | if (!ev_is_active (&pipeev)) |
|
|
806 | { |
|
|
807 | while (pipe (evpipe)) |
|
|
808 | syserr ("(libev) error creating signal/async pipe"); |
|
|
809 | |
704 | fd_intern (sigpipe [0]); |
810 | fd_intern (evpipe [0]); |
705 | fd_intern (sigpipe [1]); |
811 | fd_intern (evpipe [1]); |
706 | |
812 | |
707 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
813 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
708 | ev_io_start (EV_A_ &sigev); |
814 | ev_io_start (EV_A_ &pipeev); |
709 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
815 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
816 | } |
|
|
817 | } |
|
|
818 | |
|
|
819 | void inline_size |
|
|
820 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
821 | { |
|
|
822 | if (!*flag) |
|
|
823 | { |
|
|
824 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
825 | |
|
|
826 | *flag = 1; |
|
|
827 | write (evpipe [1], &old_errno, 1); |
|
|
828 | |
|
|
829 | errno = old_errno; |
|
|
830 | } |
|
|
831 | } |
|
|
832 | |
|
|
833 | static void |
|
|
834 | pipecb (EV_P_ ev_io *iow, int revents) |
|
|
835 | { |
|
|
836 | { |
|
|
837 | int dummy; |
|
|
838 | read (evpipe [0], &dummy, 1); |
|
|
839 | } |
|
|
840 | |
|
|
841 | if (gotsig && ev_is_default_loop (EV_A)) |
|
|
842 | { |
|
|
843 | int signum; |
|
|
844 | gotsig = 0; |
|
|
845 | |
|
|
846 | for (signum = signalmax; signum--; ) |
|
|
847 | if (signals [signum].gotsig) |
|
|
848 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
849 | } |
|
|
850 | |
|
|
851 | #if EV_ASYNC_ENABLE |
|
|
852 | if (gotasync) |
|
|
853 | { |
|
|
854 | int i; |
|
|
855 | gotasync = 0; |
|
|
856 | |
|
|
857 | for (i = asynccnt; i--; ) |
|
|
858 | if (asyncs [i]->sent) |
|
|
859 | { |
|
|
860 | asyncs [i]->sent = 0; |
|
|
861 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
|
|
862 | } |
|
|
863 | } |
|
|
864 | #endif |
710 | } |
865 | } |
711 | |
866 | |
712 | /*****************************************************************************/ |
867 | /*****************************************************************************/ |
713 | |
868 | |
|
|
869 | static void |
|
|
870 | ev_sighandler (int signum) |
|
|
871 | { |
|
|
872 | #if EV_MULTIPLICITY |
|
|
873 | struct ev_loop *loop = &default_loop_struct; |
|
|
874 | #endif |
|
|
875 | |
|
|
876 | #if _WIN32 |
|
|
877 | signal (signum, ev_sighandler); |
|
|
878 | #endif |
|
|
879 | |
|
|
880 | signals [signum - 1].gotsig = 1; |
|
|
881 | evpipe_write (EV_A_ &gotsig); |
|
|
882 | } |
|
|
883 | |
|
|
884 | void noinline |
|
|
885 | ev_feed_signal_event (EV_P_ int signum) |
|
|
886 | { |
|
|
887 | WL w; |
|
|
888 | |
|
|
889 | #if EV_MULTIPLICITY |
|
|
890 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
891 | #endif |
|
|
892 | |
|
|
893 | --signum; |
|
|
894 | |
|
|
895 | if (signum < 0 || signum >= signalmax) |
|
|
896 | return; |
|
|
897 | |
|
|
898 | signals [signum].gotsig = 0; |
|
|
899 | |
|
|
900 | for (w = signals [signum].head; w; w = w->next) |
|
|
901 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
902 | } |
|
|
903 | |
|
|
904 | /*****************************************************************************/ |
|
|
905 | |
714 | static ev_child *childs [PID_HASHSIZE]; |
906 | static WL childs [EV_PID_HASHSIZE]; |
715 | |
907 | |
716 | #ifndef _WIN32 |
908 | #ifndef _WIN32 |
717 | |
909 | |
718 | static ev_signal childev; |
910 | static ev_signal childev; |
719 | |
911 | |
|
|
912 | #ifndef WIFCONTINUED |
|
|
913 | # define WIFCONTINUED(status) 0 |
|
|
914 | #endif |
|
|
915 | |
720 | void inline_speed |
916 | void inline_speed |
721 | child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) |
917 | child_reap (EV_P_ int chain, int pid, int status) |
722 | { |
918 | { |
723 | ev_child *w; |
919 | ev_child *w; |
|
|
920 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
724 | |
921 | |
725 | for (w = (ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
922 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
923 | { |
726 | if (w->pid == pid || !w->pid) |
924 | if ((w->pid == pid || !w->pid) |
|
|
925 | && (!traced || (w->flags & 1))) |
727 | { |
926 | { |
728 | ev_priority (w) = ev_priority (sw); /* need to do it *now* */ |
927 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
729 | w->rpid = pid; |
928 | w->rpid = pid; |
730 | w->rstatus = status; |
929 | w->rstatus = status; |
731 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
930 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
732 | } |
931 | } |
|
|
932 | } |
733 | } |
933 | } |
734 | |
934 | |
735 | #ifndef WCONTINUED |
935 | #ifndef WCONTINUED |
736 | # define WCONTINUED 0 |
936 | # define WCONTINUED 0 |
737 | #endif |
937 | #endif |
… | |
… | |
746 | if (!WCONTINUED |
946 | if (!WCONTINUED |
747 | || errno != EINVAL |
947 | || errno != EINVAL |
748 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
948 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
749 | return; |
949 | return; |
750 | |
950 | |
751 | /* make sure we are called again until all childs have been reaped */ |
951 | /* make sure we are called again until all children have been reaped */ |
752 | /* we need to do it this way so that the callback gets called before we continue */ |
952 | /* we need to do it this way so that the callback gets called before we continue */ |
753 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
953 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
754 | |
954 | |
755 | child_reap (EV_A_ sw, pid, pid, status); |
955 | child_reap (EV_A_ pid, pid, status); |
|
|
956 | if (EV_PID_HASHSIZE > 1) |
756 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
957 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
757 | } |
958 | } |
758 | |
959 | |
759 | #endif |
960 | #endif |
760 | |
961 | |
761 | /*****************************************************************************/ |
962 | /*****************************************************************************/ |
… | |
… | |
833 | } |
1034 | } |
834 | |
1035 | |
835 | unsigned int |
1036 | unsigned int |
836 | ev_embeddable_backends (void) |
1037 | ev_embeddable_backends (void) |
837 | { |
1038 | { |
838 | return EVBACKEND_EPOLL |
1039 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
839 | | EVBACKEND_KQUEUE |
1040 | |
840 | | EVBACKEND_PORT; |
1041 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
|
|
1042 | /* please fix it and tell me how to detect the fix */ |
|
|
1043 | flags &= ~EVBACKEND_EPOLL; |
|
|
1044 | |
|
|
1045 | return flags; |
841 | } |
1046 | } |
842 | |
1047 | |
843 | unsigned int |
1048 | unsigned int |
844 | ev_backend (EV_P) |
1049 | ev_backend (EV_P) |
845 | { |
1050 | { |
846 | return backend; |
1051 | return backend; |
847 | } |
1052 | } |
848 | |
1053 | |
849 | static void |
1054 | unsigned int |
|
|
1055 | ev_loop_count (EV_P) |
|
|
1056 | { |
|
|
1057 | return loop_count; |
|
|
1058 | } |
|
|
1059 | |
|
|
1060 | void |
|
|
1061 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1062 | { |
|
|
1063 | io_blocktime = interval; |
|
|
1064 | } |
|
|
1065 | |
|
|
1066 | void |
|
|
1067 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1068 | { |
|
|
1069 | timeout_blocktime = interval; |
|
|
1070 | } |
|
|
1071 | |
|
|
1072 | static void noinline |
850 | loop_init (EV_P_ unsigned int flags) |
1073 | loop_init (EV_P_ unsigned int flags) |
851 | { |
1074 | { |
852 | if (!backend) |
1075 | if (!backend) |
853 | { |
1076 | { |
854 | #if EV_USE_MONOTONIC |
1077 | #if EV_USE_MONOTONIC |
… | |
… | |
857 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1080 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
858 | have_monotonic = 1; |
1081 | have_monotonic = 1; |
859 | } |
1082 | } |
860 | #endif |
1083 | #endif |
861 | |
1084 | |
862 | ev_rt_now = ev_time (); |
1085 | ev_rt_now = ev_time (); |
863 | mn_now = get_clock (); |
1086 | mn_now = get_clock (); |
864 | now_floor = mn_now; |
1087 | now_floor = mn_now; |
865 | rtmn_diff = ev_rt_now - mn_now; |
1088 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1089 | |
|
|
1090 | io_blocktime = 0.; |
|
|
1091 | timeout_blocktime = 0.; |
|
|
1092 | backend = 0; |
|
|
1093 | backend_fd = -1; |
|
|
1094 | gotasync = 0; |
|
|
1095 | #if EV_USE_INOTIFY |
|
|
1096 | fs_fd = -2; |
|
|
1097 | #endif |
|
|
1098 | |
|
|
1099 | /* pid check not overridable via env */ |
|
|
1100 | #ifndef _WIN32 |
|
|
1101 | if (flags & EVFLAG_FORKCHECK) |
|
|
1102 | curpid = getpid (); |
|
|
1103 | #endif |
866 | |
1104 | |
867 | if (!(flags & EVFLAG_NOENV) |
1105 | if (!(flags & EVFLAG_NOENV) |
868 | && !enable_secure () |
1106 | && !enable_secure () |
869 | && getenv ("LIBEV_FLAGS")) |
1107 | && getenv ("LIBEV_FLAGS")) |
870 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1108 | flags = atoi (getenv ("LIBEV_FLAGS")); |
871 | |
1109 | |
872 | if (!(flags & 0x0000ffffUL)) |
1110 | if (!(flags & 0x0000ffffUL)) |
873 | flags |= ev_recommended_backends (); |
1111 | flags |= ev_recommended_backends (); |
874 | |
1112 | |
875 | backend = 0; |
|
|
876 | #if EV_USE_PORT |
1113 | #if EV_USE_PORT |
877 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1114 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
878 | #endif |
1115 | #endif |
879 | #if EV_USE_KQUEUE |
1116 | #if EV_USE_KQUEUE |
880 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
1117 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
… | |
… | |
887 | #endif |
1124 | #endif |
888 | #if EV_USE_SELECT |
1125 | #if EV_USE_SELECT |
889 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1126 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
890 | #endif |
1127 | #endif |
891 | |
1128 | |
892 | ev_init (&sigev, sigcb); |
1129 | ev_init (&pipeev, pipecb); |
893 | ev_set_priority (&sigev, EV_MAXPRI); |
1130 | ev_set_priority (&pipeev, EV_MAXPRI); |
894 | } |
1131 | } |
895 | } |
1132 | } |
896 | |
1133 | |
897 | static void |
1134 | static void noinline |
898 | loop_destroy (EV_P) |
1135 | loop_destroy (EV_P) |
899 | { |
1136 | { |
900 | int i; |
1137 | int i; |
|
|
1138 | |
|
|
1139 | if (ev_is_active (&pipeev)) |
|
|
1140 | { |
|
|
1141 | ev_ref (EV_A); /* signal watcher */ |
|
|
1142 | ev_io_stop (EV_A_ &pipeev); |
|
|
1143 | |
|
|
1144 | close (evpipe [0]); evpipe [0] = 0; |
|
|
1145 | close (evpipe [1]); evpipe [1] = 0; |
|
|
1146 | } |
|
|
1147 | |
|
|
1148 | #if EV_USE_INOTIFY |
|
|
1149 | if (fs_fd >= 0) |
|
|
1150 | close (fs_fd); |
|
|
1151 | #endif |
|
|
1152 | |
|
|
1153 | if (backend_fd >= 0) |
|
|
1154 | close (backend_fd); |
901 | |
1155 | |
902 | #if EV_USE_PORT |
1156 | #if EV_USE_PORT |
903 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
1157 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
904 | #endif |
1158 | #endif |
905 | #if EV_USE_KQUEUE |
1159 | #if EV_USE_KQUEUE |
… | |
… | |
914 | #if EV_USE_SELECT |
1168 | #if EV_USE_SELECT |
915 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
1169 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
916 | #endif |
1170 | #endif |
917 | |
1171 | |
918 | for (i = NUMPRI; i--; ) |
1172 | for (i = NUMPRI; i--; ) |
|
|
1173 | { |
919 | array_free (pending, [i]); |
1174 | array_free (pending, [i]); |
|
|
1175 | #if EV_IDLE_ENABLE |
|
|
1176 | array_free (idle, [i]); |
|
|
1177 | #endif |
|
|
1178 | } |
|
|
1179 | |
|
|
1180 | ev_free (anfds); anfdmax = 0; |
920 | |
1181 | |
921 | /* have to use the microsoft-never-gets-it-right macro */ |
1182 | /* have to use the microsoft-never-gets-it-right macro */ |
922 | array_free (fdchange, EMPTY0); |
1183 | array_free (fdchange, EMPTY); |
923 | array_free (timer, EMPTY0); |
1184 | array_free (timer, EMPTY); |
924 | #if EV_PERIODIC_ENABLE |
1185 | #if EV_PERIODIC_ENABLE |
925 | array_free (periodic, EMPTY0); |
1186 | array_free (periodic, EMPTY); |
926 | #endif |
1187 | #endif |
|
|
1188 | #if EV_FORK_ENABLE |
927 | array_free (idle, EMPTY0); |
1189 | array_free (fork, EMPTY); |
|
|
1190 | #endif |
928 | array_free (prepare, EMPTY0); |
1191 | array_free (prepare, EMPTY); |
929 | array_free (check, EMPTY0); |
1192 | array_free (check, EMPTY); |
|
|
1193 | #if EV_ASYNC_ENABLE |
|
|
1194 | array_free (async, EMPTY); |
|
|
1195 | #endif |
930 | |
1196 | |
931 | backend = 0; |
1197 | backend = 0; |
932 | } |
1198 | } |
933 | |
1199 | |
934 | static void |
1200 | void inline_size infy_fork (EV_P); |
|
|
1201 | |
|
|
1202 | void inline_size |
935 | loop_fork (EV_P) |
1203 | loop_fork (EV_P) |
936 | { |
1204 | { |
937 | #if EV_USE_PORT |
1205 | #if EV_USE_PORT |
938 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1206 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
939 | #endif |
1207 | #endif |
… | |
… | |
941 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
1209 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
942 | #endif |
1210 | #endif |
943 | #if EV_USE_EPOLL |
1211 | #if EV_USE_EPOLL |
944 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
1212 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
945 | #endif |
1213 | #endif |
|
|
1214 | #if EV_USE_INOTIFY |
|
|
1215 | infy_fork (EV_A); |
|
|
1216 | #endif |
946 | |
1217 | |
947 | if (ev_is_active (&sigev)) |
1218 | if (ev_is_active (&pipeev)) |
948 | { |
1219 | { |
949 | /* default loop */ |
1220 | /* this "locks" the handlers against writing to the pipe */ |
|
|
1221 | /* while we modify the fd vars */ |
|
|
1222 | gotsig = 1; |
|
|
1223 | #if EV_ASYNC_ENABLE |
|
|
1224 | gotasync = 1; |
|
|
1225 | #endif |
950 | |
1226 | |
951 | ev_ref (EV_A); |
1227 | ev_ref (EV_A); |
952 | ev_io_stop (EV_A_ &sigev); |
1228 | ev_io_stop (EV_A_ &pipeev); |
953 | close (sigpipe [0]); |
1229 | close (evpipe [0]); |
954 | close (sigpipe [1]); |
1230 | close (evpipe [1]); |
955 | |
1231 | |
956 | while (pipe (sigpipe)) |
|
|
957 | syserr ("(libev) error creating pipe"); |
|
|
958 | |
|
|
959 | siginit (EV_A); |
1232 | evpipe_init (EV_A); |
|
|
1233 | /* now iterate over everything, in case we missed something */ |
|
|
1234 | pipecb (EV_A_ &pipeev, EV_READ); |
960 | } |
1235 | } |
961 | |
1236 | |
962 | postfork = 0; |
1237 | postfork = 0; |
963 | } |
1238 | } |
964 | |
1239 | |
… | |
… | |
986 | } |
1261 | } |
987 | |
1262 | |
988 | void |
1263 | void |
989 | ev_loop_fork (EV_P) |
1264 | ev_loop_fork (EV_P) |
990 | { |
1265 | { |
991 | postfork = 1; |
1266 | postfork = 1; /* must be in line with ev_default_fork */ |
992 | } |
1267 | } |
993 | |
1268 | |
994 | #endif |
1269 | #endif |
995 | |
1270 | |
996 | #if EV_MULTIPLICITY |
1271 | #if EV_MULTIPLICITY |
… | |
… | |
999 | #else |
1274 | #else |
1000 | int |
1275 | int |
1001 | ev_default_loop (unsigned int flags) |
1276 | ev_default_loop (unsigned int flags) |
1002 | #endif |
1277 | #endif |
1003 | { |
1278 | { |
1004 | if (sigpipe [0] == sigpipe [1]) |
|
|
1005 | if (pipe (sigpipe)) |
|
|
1006 | return 0; |
|
|
1007 | |
|
|
1008 | if (!ev_default_loop_ptr) |
1279 | if (!ev_default_loop_ptr) |
1009 | { |
1280 | { |
1010 | #if EV_MULTIPLICITY |
1281 | #if EV_MULTIPLICITY |
1011 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1282 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1012 | #else |
1283 | #else |
… | |
… | |
1015 | |
1286 | |
1016 | loop_init (EV_A_ flags); |
1287 | loop_init (EV_A_ flags); |
1017 | |
1288 | |
1018 | if (ev_backend (EV_A)) |
1289 | if (ev_backend (EV_A)) |
1019 | { |
1290 | { |
1020 | siginit (EV_A); |
|
|
1021 | |
|
|
1022 | #ifndef _WIN32 |
1291 | #ifndef _WIN32 |
1023 | ev_signal_init (&childev, childcb, SIGCHLD); |
1292 | ev_signal_init (&childev, childcb, SIGCHLD); |
1024 | ev_set_priority (&childev, EV_MAXPRI); |
1293 | ev_set_priority (&childev, EV_MAXPRI); |
1025 | ev_signal_start (EV_A_ &childev); |
1294 | ev_signal_start (EV_A_ &childev); |
1026 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1295 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
… | |
… | |
1043 | #ifndef _WIN32 |
1312 | #ifndef _WIN32 |
1044 | ev_ref (EV_A); /* child watcher */ |
1313 | ev_ref (EV_A); /* child watcher */ |
1045 | ev_signal_stop (EV_A_ &childev); |
1314 | ev_signal_stop (EV_A_ &childev); |
1046 | #endif |
1315 | #endif |
1047 | |
1316 | |
1048 | ev_ref (EV_A); /* signal watcher */ |
|
|
1049 | ev_io_stop (EV_A_ &sigev); |
|
|
1050 | |
|
|
1051 | close (sigpipe [0]); sigpipe [0] = 0; |
|
|
1052 | close (sigpipe [1]); sigpipe [1] = 0; |
|
|
1053 | |
|
|
1054 | loop_destroy (EV_A); |
1317 | loop_destroy (EV_A); |
1055 | } |
1318 | } |
1056 | |
1319 | |
1057 | void |
1320 | void |
1058 | ev_default_fork (void) |
1321 | ev_default_fork (void) |
… | |
… | |
1060 | #if EV_MULTIPLICITY |
1323 | #if EV_MULTIPLICITY |
1061 | struct ev_loop *loop = ev_default_loop_ptr; |
1324 | struct ev_loop *loop = ev_default_loop_ptr; |
1062 | #endif |
1325 | #endif |
1063 | |
1326 | |
1064 | if (backend) |
1327 | if (backend) |
1065 | postfork = 1; |
1328 | postfork = 1; /* must be in line with ev_loop_fork */ |
1066 | } |
1329 | } |
1067 | |
1330 | |
1068 | /*****************************************************************************/ |
1331 | /*****************************************************************************/ |
1069 | |
1332 | |
1070 | int inline_size |
1333 | void |
1071 | any_pending (EV_P) |
1334 | ev_invoke (EV_P_ void *w, int revents) |
1072 | { |
1335 | { |
1073 | int pri; |
1336 | EV_CB_INVOKE ((W)w, revents); |
1074 | |
|
|
1075 | for (pri = NUMPRI; pri--; ) |
|
|
1076 | if (pendingcnt [pri]) |
|
|
1077 | return 1; |
|
|
1078 | |
|
|
1079 | return 0; |
|
|
1080 | } |
1337 | } |
1081 | |
1338 | |
1082 | void inline_speed |
1339 | void inline_speed |
1083 | call_pending (EV_P) |
1340 | call_pending (EV_P) |
1084 | { |
1341 | { |
… | |
… | |
1089 | { |
1346 | { |
1090 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1347 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1091 | |
1348 | |
1092 | if (expect_true (p->w)) |
1349 | if (expect_true (p->w)) |
1093 | { |
1350 | { |
1094 | assert (("non-pending watcher on pending list", p->w->pending)); |
1351 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
1095 | |
1352 | |
1096 | p->w->pending = 0; |
1353 | p->w->pending = 0; |
1097 | EV_CB_INVOKE (p->w, p->events); |
1354 | EV_CB_INVOKE (p->w, p->events); |
1098 | } |
1355 | } |
1099 | } |
1356 | } |
… | |
… | |
1102 | void inline_size |
1359 | void inline_size |
1103 | timers_reify (EV_P) |
1360 | timers_reify (EV_P) |
1104 | { |
1361 | { |
1105 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
1362 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
1106 | { |
1363 | { |
1107 | ev_timer *w = timers [0]; |
1364 | ev_timer *w = (ev_timer *)timers [0]; |
1108 | |
1365 | |
1109 | assert (("inactive timer on timer heap detected", ev_is_active (w))); |
1366 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
1110 | |
1367 | |
1111 | /* first reschedule or stop timer */ |
1368 | /* first reschedule or stop timer */ |
1112 | if (w->repeat) |
1369 | if (w->repeat) |
1113 | { |
1370 | { |
1114 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1371 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1115 | |
1372 | |
1116 | ((WT)w)->at += w->repeat; |
1373 | ((WT)w)->at += w->repeat; |
1117 | if (((WT)w)->at < mn_now) |
1374 | if (((WT)w)->at < mn_now) |
1118 | ((WT)w)->at = mn_now; |
1375 | ((WT)w)->at = mn_now; |
1119 | |
1376 | |
1120 | downheap ((WT *)timers, timercnt, 0); |
1377 | downheap (timers, timercnt, 0); |
1121 | } |
1378 | } |
1122 | else |
1379 | else |
1123 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1380 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1124 | |
1381 | |
1125 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
1382 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
… | |
… | |
1130 | void inline_size |
1387 | void inline_size |
1131 | periodics_reify (EV_P) |
1388 | periodics_reify (EV_P) |
1132 | { |
1389 | { |
1133 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
1390 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
1134 | { |
1391 | { |
1135 | ev_periodic *w = periodics [0]; |
1392 | ev_periodic *w = (ev_periodic *)periodics [0]; |
1136 | |
1393 | |
1137 | assert (("inactive timer on periodic heap detected", ev_is_active (w))); |
1394 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
1138 | |
1395 | |
1139 | /* first reschedule or stop timer */ |
1396 | /* first reschedule or stop timer */ |
1140 | if (w->reschedule_cb) |
1397 | if (w->reschedule_cb) |
1141 | { |
1398 | { |
1142 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); |
1399 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); |
1143 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
1400 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
1144 | downheap ((WT *)periodics, periodiccnt, 0); |
1401 | downheap (periodics, periodiccnt, 0); |
1145 | } |
1402 | } |
1146 | else if (w->interval) |
1403 | else if (w->interval) |
1147 | { |
1404 | { |
1148 | ((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
1405 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1406 | if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval; |
1149 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
1407 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
1150 | downheap ((WT *)periodics, periodiccnt, 0); |
1408 | downheap (periodics, periodiccnt, 0); |
1151 | } |
1409 | } |
1152 | else |
1410 | else |
1153 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1411 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1154 | |
1412 | |
1155 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
1413 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
… | |
… | |
1162 | int i; |
1420 | int i; |
1163 | |
1421 | |
1164 | /* adjust periodics after time jump */ |
1422 | /* adjust periodics after time jump */ |
1165 | for (i = 0; i < periodiccnt; ++i) |
1423 | for (i = 0; i < periodiccnt; ++i) |
1166 | { |
1424 | { |
1167 | ev_periodic *w = periodics [i]; |
1425 | ev_periodic *w = (ev_periodic *)periodics [i]; |
1168 | |
1426 | |
1169 | if (w->reschedule_cb) |
1427 | if (w->reschedule_cb) |
1170 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1428 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1171 | else if (w->interval) |
1429 | else if (w->interval) |
1172 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1430 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1173 | } |
1431 | } |
1174 | |
1432 | |
1175 | /* now rebuild the heap */ |
1433 | /* now rebuild the heap */ |
1176 | for (i = periodiccnt >> 1; i--; ) |
1434 | for (i = periodiccnt >> 1; i--; ) |
1177 | downheap ((WT *)periodics, periodiccnt, i); |
1435 | downheap (periodics, periodiccnt, i); |
1178 | } |
1436 | } |
1179 | #endif |
1437 | #endif |
1180 | |
1438 | |
|
|
1439 | #if EV_IDLE_ENABLE |
1181 | int inline_size |
1440 | void inline_size |
1182 | time_update_monotonic (EV_P) |
1441 | idle_reify (EV_P) |
1183 | { |
1442 | { |
|
|
1443 | if (expect_false (idleall)) |
|
|
1444 | { |
|
|
1445 | int pri; |
|
|
1446 | |
|
|
1447 | for (pri = NUMPRI; pri--; ) |
|
|
1448 | { |
|
|
1449 | if (pendingcnt [pri]) |
|
|
1450 | break; |
|
|
1451 | |
|
|
1452 | if (idlecnt [pri]) |
|
|
1453 | { |
|
|
1454 | queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE); |
|
|
1455 | break; |
|
|
1456 | } |
|
|
1457 | } |
|
|
1458 | } |
|
|
1459 | } |
|
|
1460 | #endif |
|
|
1461 | |
|
|
1462 | void inline_speed |
|
|
1463 | time_update (EV_P_ ev_tstamp max_block) |
|
|
1464 | { |
|
|
1465 | int i; |
|
|
1466 | |
|
|
1467 | #if EV_USE_MONOTONIC |
|
|
1468 | if (expect_true (have_monotonic)) |
|
|
1469 | { |
|
|
1470 | ev_tstamp odiff = rtmn_diff; |
|
|
1471 | |
1184 | mn_now = get_clock (); |
1472 | mn_now = get_clock (); |
1185 | |
1473 | |
|
|
1474 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
|
|
1475 | /* interpolate in the meantime */ |
1186 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1476 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1187 | { |
1477 | { |
1188 | ev_rt_now = rtmn_diff + mn_now; |
1478 | ev_rt_now = rtmn_diff + mn_now; |
1189 | return 0; |
1479 | return; |
1190 | } |
1480 | } |
1191 | else |
1481 | |
1192 | { |
|
|
1193 | now_floor = mn_now; |
1482 | now_floor = mn_now; |
1194 | ev_rt_now = ev_time (); |
1483 | ev_rt_now = ev_time (); |
1195 | return 1; |
|
|
1196 | } |
|
|
1197 | } |
|
|
1198 | |
1484 | |
1199 | void inline_size |
1485 | /* loop a few times, before making important decisions. |
1200 | time_update (EV_P) |
1486 | * on the choice of "4": one iteration isn't enough, |
1201 | { |
1487 | * in case we get preempted during the calls to |
1202 | int i; |
1488 | * ev_time and get_clock. a second call is almost guaranteed |
1203 | |
1489 | * to succeed in that case, though. and looping a few more times |
1204 | #if EV_USE_MONOTONIC |
1490 | * doesn't hurt either as we only do this on time-jumps or |
1205 | if (expect_true (have_monotonic)) |
1491 | * in the unlikely event of having been preempted here. |
1206 | { |
1492 | */ |
1207 | if (time_update_monotonic (EV_A)) |
1493 | for (i = 4; --i; ) |
1208 | { |
1494 | { |
1209 | ev_tstamp odiff = rtmn_diff; |
|
|
1210 | |
|
|
1211 | /* loop a few times, before making important decisions. |
|
|
1212 | * on the choice of "4": one iteration isn't enough, |
|
|
1213 | * in case we get preempted during the calls to |
|
|
1214 | * ev_time and get_clock. a second call is almost guarenteed |
|
|
1215 | * to succeed in that case, though. and looping a few more times |
|
|
1216 | * doesn't hurt either as we only do this on time-jumps or |
|
|
1217 | * in the unlikely event of getting preempted here. |
|
|
1218 | */ |
|
|
1219 | for (i = 4; --i; ) |
|
|
1220 | { |
|
|
1221 | rtmn_diff = ev_rt_now - mn_now; |
1495 | rtmn_diff = ev_rt_now - mn_now; |
1222 | |
1496 | |
1223 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1497 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1224 | return; /* all is well */ |
1498 | return; /* all is well */ |
1225 | |
1499 | |
1226 | ev_rt_now = ev_time (); |
1500 | ev_rt_now = ev_time (); |
1227 | mn_now = get_clock (); |
1501 | mn_now = get_clock (); |
1228 | now_floor = mn_now; |
1502 | now_floor = mn_now; |
1229 | } |
1503 | } |
1230 | |
1504 | |
1231 | # if EV_PERIODIC_ENABLE |
1505 | # if EV_PERIODIC_ENABLE |
1232 | periodics_reschedule (EV_A); |
1506 | periodics_reschedule (EV_A); |
1233 | # endif |
1507 | # endif |
1234 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
1508 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
1235 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1509 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1236 | } |
|
|
1237 | } |
1510 | } |
1238 | else |
1511 | else |
1239 | #endif |
1512 | #endif |
1240 | { |
1513 | { |
1241 | ev_rt_now = ev_time (); |
1514 | ev_rt_now = ev_time (); |
1242 | |
1515 | |
1243 | if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
1516 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
1244 | { |
1517 | { |
1245 | #if EV_PERIODIC_ENABLE |
1518 | #if EV_PERIODIC_ENABLE |
1246 | periodics_reschedule (EV_A); |
1519 | periodics_reschedule (EV_A); |
1247 | #endif |
1520 | #endif |
1248 | |
|
|
1249 | /* adjust timers. this is easy, as the offset is the same for all */ |
1521 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
1250 | for (i = 0; i < timercnt; ++i) |
1522 | for (i = 0; i < timercnt; ++i) |
1251 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
1523 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
1252 | } |
1524 | } |
1253 | |
1525 | |
1254 | mn_now = ev_rt_now; |
1526 | mn_now = ev_rt_now; |
… | |
… | |
1270 | static int loop_done; |
1542 | static int loop_done; |
1271 | |
1543 | |
1272 | void |
1544 | void |
1273 | ev_loop (EV_P_ int flags) |
1545 | ev_loop (EV_P_ int flags) |
1274 | { |
1546 | { |
1275 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) |
1547 | loop_done = EVUNLOOP_CANCEL; |
1276 | ? EVUNLOOP_ONE |
|
|
1277 | : EVUNLOOP_CANCEL; |
|
|
1278 | |
1548 | |
1279 | while (activecnt) |
1549 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
|
|
1550 | |
|
|
1551 | do |
1280 | { |
1552 | { |
|
|
1553 | #ifndef _WIN32 |
|
|
1554 | if (expect_false (curpid)) /* penalise the forking check even more */ |
|
|
1555 | if (expect_false (getpid () != curpid)) |
|
|
1556 | { |
|
|
1557 | curpid = getpid (); |
|
|
1558 | postfork = 1; |
|
|
1559 | } |
|
|
1560 | #endif |
|
|
1561 | |
|
|
1562 | #if EV_FORK_ENABLE |
|
|
1563 | /* we might have forked, so queue fork handlers */ |
|
|
1564 | if (expect_false (postfork)) |
|
|
1565 | if (forkcnt) |
|
|
1566 | { |
|
|
1567 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
|
|
1568 | call_pending (EV_A); |
|
|
1569 | } |
|
|
1570 | #endif |
|
|
1571 | |
1281 | /* queue check watchers (and execute them) */ |
1572 | /* queue prepare watchers (and execute them) */ |
1282 | if (expect_false (preparecnt)) |
1573 | if (expect_false (preparecnt)) |
1283 | { |
1574 | { |
1284 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1575 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1285 | call_pending (EV_A); |
1576 | call_pending (EV_A); |
1286 | } |
1577 | } |
1287 | |
1578 | |
|
|
1579 | if (expect_false (!activecnt)) |
|
|
1580 | break; |
|
|
1581 | |
1288 | /* we might have forked, so reify kernel state if necessary */ |
1582 | /* we might have forked, so reify kernel state if necessary */ |
1289 | if (expect_false (postfork)) |
1583 | if (expect_false (postfork)) |
1290 | loop_fork (EV_A); |
1584 | loop_fork (EV_A); |
1291 | |
1585 | |
1292 | /* update fd-related kernel structures */ |
1586 | /* update fd-related kernel structures */ |
1293 | fd_reify (EV_A); |
1587 | fd_reify (EV_A); |
1294 | |
1588 | |
1295 | /* calculate blocking time */ |
1589 | /* calculate blocking time */ |
1296 | { |
1590 | { |
1297 | double block; |
1591 | ev_tstamp waittime = 0.; |
|
|
1592 | ev_tstamp sleeptime = 0.; |
1298 | |
1593 | |
1299 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
1594 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
1300 | block = 0.; /* do not block at all */ |
|
|
1301 | else |
|
|
1302 | { |
1595 | { |
1303 | /* update time to cancel out callback processing overhead */ |
1596 | /* update time to cancel out callback processing overhead */ |
1304 | #if EV_USE_MONOTONIC |
|
|
1305 | if (expect_true (have_monotonic)) |
|
|
1306 | time_update_monotonic (EV_A); |
1597 | time_update (EV_A_ 1e100); |
1307 | else |
|
|
1308 | #endif |
|
|
1309 | { |
|
|
1310 | ev_rt_now = ev_time (); |
|
|
1311 | mn_now = ev_rt_now; |
|
|
1312 | } |
|
|
1313 | |
1598 | |
1314 | block = MAX_BLOCKTIME; |
1599 | waittime = MAX_BLOCKTIME; |
1315 | |
1600 | |
1316 | if (timercnt) |
1601 | if (timercnt) |
1317 | { |
1602 | { |
1318 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
1603 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
1319 | if (block > to) block = to; |
1604 | if (waittime > to) waittime = to; |
1320 | } |
1605 | } |
1321 | |
1606 | |
1322 | #if EV_PERIODIC_ENABLE |
1607 | #if EV_PERIODIC_ENABLE |
1323 | if (periodiccnt) |
1608 | if (periodiccnt) |
1324 | { |
1609 | { |
1325 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
1610 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
1326 | if (block > to) block = to; |
1611 | if (waittime > to) waittime = to; |
1327 | } |
1612 | } |
1328 | #endif |
1613 | #endif |
1329 | |
1614 | |
1330 | if (expect_false (block < 0.)) block = 0.; |
1615 | if (expect_false (waittime < timeout_blocktime)) |
|
|
1616 | waittime = timeout_blocktime; |
|
|
1617 | |
|
|
1618 | sleeptime = waittime - backend_fudge; |
|
|
1619 | |
|
|
1620 | if (expect_true (sleeptime > io_blocktime)) |
|
|
1621 | sleeptime = io_blocktime; |
|
|
1622 | |
|
|
1623 | if (sleeptime) |
|
|
1624 | { |
|
|
1625 | ev_sleep (sleeptime); |
|
|
1626 | waittime -= sleeptime; |
|
|
1627 | } |
1331 | } |
1628 | } |
1332 | |
1629 | |
|
|
1630 | ++loop_count; |
1333 | backend_poll (EV_A_ block); |
1631 | backend_poll (EV_A_ waittime); |
|
|
1632 | |
|
|
1633 | /* update ev_rt_now, do magic */ |
|
|
1634 | time_update (EV_A_ waittime + sleeptime); |
1334 | } |
1635 | } |
1335 | |
|
|
1336 | /* update ev_rt_now, do magic */ |
|
|
1337 | time_update (EV_A); |
|
|
1338 | |
1636 | |
1339 | /* queue pending timers and reschedule them */ |
1637 | /* queue pending timers and reschedule them */ |
1340 | timers_reify (EV_A); /* relative timers called last */ |
1638 | timers_reify (EV_A); /* relative timers called last */ |
1341 | #if EV_PERIODIC_ENABLE |
1639 | #if EV_PERIODIC_ENABLE |
1342 | periodics_reify (EV_A); /* absolute timers called first */ |
1640 | periodics_reify (EV_A); /* absolute timers called first */ |
1343 | #endif |
1641 | #endif |
1344 | |
1642 | |
|
|
1643 | #if EV_IDLE_ENABLE |
1345 | /* queue idle watchers unless other events are pending */ |
1644 | /* queue idle watchers unless other events are pending */ |
1346 | if (idlecnt && !any_pending (EV_A)) |
1645 | idle_reify (EV_A); |
1347 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
1646 | #endif |
1348 | |
1647 | |
1349 | /* queue check watchers, to be executed first */ |
1648 | /* queue check watchers, to be executed first */ |
1350 | if (expect_false (checkcnt)) |
1649 | if (expect_false (checkcnt)) |
1351 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1650 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1352 | |
1651 | |
1353 | call_pending (EV_A); |
1652 | call_pending (EV_A); |
1354 | |
|
|
1355 | if (expect_false (loop_done)) |
|
|
1356 | break; |
|
|
1357 | } |
1653 | } |
|
|
1654 | while (expect_true ( |
|
|
1655 | activecnt |
|
|
1656 | && !loop_done |
|
|
1657 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
|
|
1658 | )); |
1358 | |
1659 | |
1359 | if (loop_done == EVUNLOOP_ONE) |
1660 | if (loop_done == EVUNLOOP_ONE) |
1360 | loop_done = EVUNLOOP_CANCEL; |
1661 | loop_done = EVUNLOOP_CANCEL; |
1361 | } |
1662 | } |
1362 | |
1663 | |
… | |
… | |
1389 | head = &(*head)->next; |
1690 | head = &(*head)->next; |
1390 | } |
1691 | } |
1391 | } |
1692 | } |
1392 | |
1693 | |
1393 | void inline_speed |
1694 | void inline_speed |
1394 | ev_clear_pending (EV_P_ W w) |
1695 | clear_pending (EV_P_ W w) |
1395 | { |
1696 | { |
1396 | if (w->pending) |
1697 | if (w->pending) |
1397 | { |
1698 | { |
1398 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1699 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1399 | w->pending = 0; |
1700 | w->pending = 0; |
1400 | } |
1701 | } |
1401 | } |
1702 | } |
1402 | |
1703 | |
|
|
1704 | int |
|
|
1705 | ev_clear_pending (EV_P_ void *w) |
|
|
1706 | { |
|
|
1707 | W w_ = (W)w; |
|
|
1708 | int pending = w_->pending; |
|
|
1709 | |
|
|
1710 | if (expect_true (pending)) |
|
|
1711 | { |
|
|
1712 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
1713 | w_->pending = 0; |
|
|
1714 | p->w = 0; |
|
|
1715 | return p->events; |
|
|
1716 | } |
|
|
1717 | else |
|
|
1718 | return 0; |
|
|
1719 | } |
|
|
1720 | |
|
|
1721 | void inline_size |
|
|
1722 | pri_adjust (EV_P_ W w) |
|
|
1723 | { |
|
|
1724 | int pri = w->priority; |
|
|
1725 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
|
|
1726 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
|
|
1727 | w->priority = pri; |
|
|
1728 | } |
|
|
1729 | |
1403 | void inline_speed |
1730 | void inline_speed |
1404 | ev_start (EV_P_ W w, int active) |
1731 | ev_start (EV_P_ W w, int active) |
1405 | { |
1732 | { |
1406 | if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; |
1733 | pri_adjust (EV_A_ w); |
1407 | if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; |
|
|
1408 | |
|
|
1409 | w->active = active; |
1734 | w->active = active; |
1410 | ev_ref (EV_A); |
1735 | ev_ref (EV_A); |
1411 | } |
1736 | } |
1412 | |
1737 | |
1413 | void inline_size |
1738 | void inline_size |
… | |
… | |
1417 | w->active = 0; |
1742 | w->active = 0; |
1418 | } |
1743 | } |
1419 | |
1744 | |
1420 | /*****************************************************************************/ |
1745 | /*****************************************************************************/ |
1421 | |
1746 | |
1422 | void |
1747 | void noinline |
1423 | ev_io_start (EV_P_ ev_io *w) |
1748 | ev_io_start (EV_P_ ev_io *w) |
1424 | { |
1749 | { |
1425 | int fd = w->fd; |
1750 | int fd = w->fd; |
1426 | |
1751 | |
1427 | if (expect_false (ev_is_active (w))) |
1752 | if (expect_false (ev_is_active (w))) |
… | |
… | |
1429 | |
1754 | |
1430 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1755 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1431 | |
1756 | |
1432 | ev_start (EV_A_ (W)w, 1); |
1757 | ev_start (EV_A_ (W)w, 1); |
1433 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
1758 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
1434 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1759 | wlist_add (&anfds[fd].head, (WL)w); |
1435 | |
1760 | |
1436 | fd_change (EV_A_ fd); |
1761 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
|
|
1762 | w->events &= ~EV_IOFDSET; |
1437 | } |
1763 | } |
1438 | |
1764 | |
1439 | void |
1765 | void noinline |
1440 | ev_io_stop (EV_P_ ev_io *w) |
1766 | ev_io_stop (EV_P_ ev_io *w) |
1441 | { |
1767 | { |
1442 | ev_clear_pending (EV_A_ (W)w); |
1768 | clear_pending (EV_A_ (W)w); |
1443 | if (expect_false (!ev_is_active (w))) |
1769 | if (expect_false (!ev_is_active (w))) |
1444 | return; |
1770 | return; |
1445 | |
1771 | |
1446 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
1772 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
1447 | |
1773 | |
1448 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
1774 | wlist_del (&anfds[w->fd].head, (WL)w); |
1449 | ev_stop (EV_A_ (W)w); |
1775 | ev_stop (EV_A_ (W)w); |
1450 | |
1776 | |
1451 | fd_change (EV_A_ w->fd); |
1777 | fd_change (EV_A_ w->fd, 1); |
1452 | } |
1778 | } |
1453 | |
1779 | |
1454 | void |
1780 | void noinline |
1455 | ev_timer_start (EV_P_ ev_timer *w) |
1781 | ev_timer_start (EV_P_ ev_timer *w) |
1456 | { |
1782 | { |
1457 | if (expect_false (ev_is_active (w))) |
1783 | if (expect_false (ev_is_active (w))) |
1458 | return; |
1784 | return; |
1459 | |
1785 | |
1460 | ((WT)w)->at += mn_now; |
1786 | ((WT)w)->at += mn_now; |
1461 | |
1787 | |
1462 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1788 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1463 | |
1789 | |
1464 | ev_start (EV_A_ (W)w, ++timercnt); |
1790 | ev_start (EV_A_ (W)w, ++timercnt); |
1465 | array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2); |
1791 | array_needsize (WT, timers, timermax, timercnt, EMPTY2); |
1466 | timers [timercnt - 1] = w; |
1792 | timers [timercnt - 1] = (WT)w; |
1467 | upheap ((WT *)timers, timercnt - 1); |
1793 | upheap (timers, timercnt - 1); |
1468 | |
1794 | |
1469 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1795 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
1470 | } |
1796 | } |
1471 | |
1797 | |
1472 | void |
1798 | void noinline |
1473 | ev_timer_stop (EV_P_ ev_timer *w) |
1799 | ev_timer_stop (EV_P_ ev_timer *w) |
1474 | { |
1800 | { |
1475 | ev_clear_pending (EV_A_ (W)w); |
1801 | clear_pending (EV_A_ (W)w); |
1476 | if (expect_false (!ev_is_active (w))) |
1802 | if (expect_false (!ev_is_active (w))) |
1477 | return; |
1803 | return; |
1478 | |
1804 | |
1479 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1805 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w)); |
1480 | |
1806 | |
|
|
1807 | { |
|
|
1808 | int active = ((W)w)->active; |
|
|
1809 | |
1481 | if (expect_true (((W)w)->active < timercnt--)) |
1810 | if (expect_true (--active < --timercnt)) |
1482 | { |
1811 | { |
1483 | timers [((W)w)->active - 1] = timers [timercnt]; |
1812 | timers [active] = timers [timercnt]; |
1484 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1813 | adjustheap (timers, timercnt, active); |
1485 | } |
1814 | } |
|
|
1815 | } |
1486 | |
1816 | |
1487 | ((WT)w)->at -= mn_now; |
1817 | ((WT)w)->at -= mn_now; |
1488 | |
1818 | |
1489 | ev_stop (EV_A_ (W)w); |
1819 | ev_stop (EV_A_ (W)w); |
1490 | } |
1820 | } |
1491 | |
1821 | |
1492 | void |
1822 | void noinline |
1493 | ev_timer_again (EV_P_ ev_timer *w) |
1823 | ev_timer_again (EV_P_ ev_timer *w) |
1494 | { |
1824 | { |
1495 | if (ev_is_active (w)) |
1825 | if (ev_is_active (w)) |
1496 | { |
1826 | { |
1497 | if (w->repeat) |
1827 | if (w->repeat) |
1498 | { |
1828 | { |
1499 | ((WT)w)->at = mn_now + w->repeat; |
1829 | ((WT)w)->at = mn_now + w->repeat; |
1500 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1830 | adjustheap (timers, timercnt, ((W)w)->active - 1); |
1501 | } |
1831 | } |
1502 | else |
1832 | else |
1503 | ev_timer_stop (EV_A_ w); |
1833 | ev_timer_stop (EV_A_ w); |
1504 | } |
1834 | } |
1505 | else if (w->repeat) |
1835 | else if (w->repeat) |
… | |
… | |
1508 | ev_timer_start (EV_A_ w); |
1838 | ev_timer_start (EV_A_ w); |
1509 | } |
1839 | } |
1510 | } |
1840 | } |
1511 | |
1841 | |
1512 | #if EV_PERIODIC_ENABLE |
1842 | #if EV_PERIODIC_ENABLE |
1513 | void |
1843 | void noinline |
1514 | ev_periodic_start (EV_P_ ev_periodic *w) |
1844 | ev_periodic_start (EV_P_ ev_periodic *w) |
1515 | { |
1845 | { |
1516 | if (expect_false (ev_is_active (w))) |
1846 | if (expect_false (ev_is_active (w))) |
1517 | return; |
1847 | return; |
1518 | |
1848 | |
… | |
… | |
1520 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1850 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1521 | else if (w->interval) |
1851 | else if (w->interval) |
1522 | { |
1852 | { |
1523 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1853 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1524 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1854 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1525 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1855 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1526 | } |
1856 | } |
|
|
1857 | else |
|
|
1858 | ((WT)w)->at = w->offset; |
1527 | |
1859 | |
1528 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1860 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1529 | array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); |
1861 | array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2); |
1530 | periodics [periodiccnt - 1] = w; |
1862 | periodics [periodiccnt - 1] = (WT)w; |
1531 | upheap ((WT *)periodics, periodiccnt - 1); |
1863 | upheap (periodics, periodiccnt - 1); |
1532 | |
1864 | |
1533 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1865 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
1534 | } |
1866 | } |
1535 | |
1867 | |
1536 | void |
1868 | void noinline |
1537 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1869 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1538 | { |
1870 | { |
1539 | ev_clear_pending (EV_A_ (W)w); |
1871 | clear_pending (EV_A_ (W)w); |
1540 | if (expect_false (!ev_is_active (w))) |
1872 | if (expect_false (!ev_is_active (w))) |
1541 | return; |
1873 | return; |
1542 | |
1874 | |
1543 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1875 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w)); |
1544 | |
1876 | |
|
|
1877 | { |
|
|
1878 | int active = ((W)w)->active; |
|
|
1879 | |
1545 | if (expect_true (((W)w)->active < periodiccnt--)) |
1880 | if (expect_true (--active < --periodiccnt)) |
1546 | { |
1881 | { |
1547 | periodics [((W)w)->active - 1] = periodics [periodiccnt]; |
1882 | periodics [active] = periodics [periodiccnt]; |
1548 | adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); |
1883 | adjustheap (periodics, periodiccnt, active); |
1549 | } |
1884 | } |
|
|
1885 | } |
1550 | |
1886 | |
1551 | ev_stop (EV_A_ (W)w); |
1887 | ev_stop (EV_A_ (W)w); |
1552 | } |
1888 | } |
1553 | |
1889 | |
1554 | void |
1890 | void noinline |
1555 | ev_periodic_again (EV_P_ ev_periodic *w) |
1891 | ev_periodic_again (EV_P_ ev_periodic *w) |
1556 | { |
1892 | { |
1557 | /* TODO: use adjustheap and recalculation */ |
1893 | /* TODO: use adjustheap and recalculation */ |
1558 | ev_periodic_stop (EV_A_ w); |
1894 | ev_periodic_stop (EV_A_ w); |
1559 | ev_periodic_start (EV_A_ w); |
1895 | ev_periodic_start (EV_A_ w); |
1560 | } |
1896 | } |
1561 | #endif |
1897 | #endif |
1562 | |
1898 | |
|
|
1899 | #ifndef SA_RESTART |
|
|
1900 | # define SA_RESTART 0 |
|
|
1901 | #endif |
|
|
1902 | |
|
|
1903 | void noinline |
|
|
1904 | ev_signal_start (EV_P_ ev_signal *w) |
|
|
1905 | { |
|
|
1906 | #if EV_MULTIPLICITY |
|
|
1907 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1908 | #endif |
|
|
1909 | if (expect_false (ev_is_active (w))) |
|
|
1910 | return; |
|
|
1911 | |
|
|
1912 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
|
|
1913 | |
|
|
1914 | evpipe_init (EV_A); |
|
|
1915 | |
|
|
1916 | { |
|
|
1917 | #ifndef _WIN32 |
|
|
1918 | sigset_t full, prev; |
|
|
1919 | sigfillset (&full); |
|
|
1920 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
1921 | #endif |
|
|
1922 | |
|
|
1923 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
|
|
1924 | |
|
|
1925 | #ifndef _WIN32 |
|
|
1926 | sigprocmask (SIG_SETMASK, &prev, 0); |
|
|
1927 | #endif |
|
|
1928 | } |
|
|
1929 | |
|
|
1930 | ev_start (EV_A_ (W)w, 1); |
|
|
1931 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
|
|
1932 | |
|
|
1933 | if (!((WL)w)->next) |
|
|
1934 | { |
|
|
1935 | #if _WIN32 |
|
|
1936 | signal (w->signum, ev_sighandler); |
|
|
1937 | #else |
|
|
1938 | struct sigaction sa; |
|
|
1939 | sa.sa_handler = ev_sighandler; |
|
|
1940 | sigfillset (&sa.sa_mask); |
|
|
1941 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
|
|
1942 | sigaction (w->signum, &sa, 0); |
|
|
1943 | #endif |
|
|
1944 | } |
|
|
1945 | } |
|
|
1946 | |
|
|
1947 | void noinline |
|
|
1948 | ev_signal_stop (EV_P_ ev_signal *w) |
|
|
1949 | { |
|
|
1950 | clear_pending (EV_A_ (W)w); |
|
|
1951 | if (expect_false (!ev_is_active (w))) |
|
|
1952 | return; |
|
|
1953 | |
|
|
1954 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
|
|
1955 | ev_stop (EV_A_ (W)w); |
|
|
1956 | |
|
|
1957 | if (!signals [w->signum - 1].head) |
|
|
1958 | signal (w->signum, SIG_DFL); |
|
|
1959 | } |
|
|
1960 | |
|
|
1961 | void |
|
|
1962 | ev_child_start (EV_P_ ev_child *w) |
|
|
1963 | { |
|
|
1964 | #if EV_MULTIPLICITY |
|
|
1965 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1966 | #endif |
|
|
1967 | if (expect_false (ev_is_active (w))) |
|
|
1968 | return; |
|
|
1969 | |
|
|
1970 | ev_start (EV_A_ (W)w, 1); |
|
|
1971 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
|
|
1972 | } |
|
|
1973 | |
|
|
1974 | void |
|
|
1975 | ev_child_stop (EV_P_ ev_child *w) |
|
|
1976 | { |
|
|
1977 | clear_pending (EV_A_ (W)w); |
|
|
1978 | if (expect_false (!ev_is_active (w))) |
|
|
1979 | return; |
|
|
1980 | |
|
|
1981 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
|
|
1982 | ev_stop (EV_A_ (W)w); |
|
|
1983 | } |
|
|
1984 | |
|
|
1985 | #if EV_STAT_ENABLE |
|
|
1986 | |
|
|
1987 | # ifdef _WIN32 |
|
|
1988 | # undef lstat |
|
|
1989 | # define lstat(a,b) _stati64 (a,b) |
|
|
1990 | # endif |
|
|
1991 | |
|
|
1992 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
1993 | #define MIN_STAT_INTERVAL 0.1074891 |
|
|
1994 | |
|
|
1995 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
|
|
1996 | |
|
|
1997 | #if EV_USE_INOTIFY |
|
|
1998 | # define EV_INOTIFY_BUFSIZE 8192 |
|
|
1999 | |
|
|
2000 | static void noinline |
|
|
2001 | infy_add (EV_P_ ev_stat *w) |
|
|
2002 | { |
|
|
2003 | 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); |
|
|
2004 | |
|
|
2005 | if (w->wd < 0) |
|
|
2006 | { |
|
|
2007 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
|
|
2008 | |
|
|
2009 | /* monitor some parent directory for speedup hints */ |
|
|
2010 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
|
|
2011 | { |
|
|
2012 | char path [4096]; |
|
|
2013 | strcpy (path, w->path); |
|
|
2014 | |
|
|
2015 | do |
|
|
2016 | { |
|
|
2017 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
|
|
2018 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
|
|
2019 | |
|
|
2020 | char *pend = strrchr (path, '/'); |
|
|
2021 | |
|
|
2022 | if (!pend) |
|
|
2023 | break; /* whoops, no '/', complain to your admin */ |
|
|
2024 | |
|
|
2025 | *pend = 0; |
|
|
2026 | w->wd = inotify_add_watch (fs_fd, path, mask); |
|
|
2027 | } |
|
|
2028 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
|
|
2029 | } |
|
|
2030 | } |
|
|
2031 | else |
|
|
2032 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
2033 | |
|
|
2034 | if (w->wd >= 0) |
|
|
2035 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
2036 | } |
|
|
2037 | |
|
|
2038 | static void noinline |
|
|
2039 | infy_del (EV_P_ ev_stat *w) |
|
|
2040 | { |
|
|
2041 | int slot; |
|
|
2042 | int wd = w->wd; |
|
|
2043 | |
|
|
2044 | if (wd < 0) |
|
|
2045 | return; |
|
|
2046 | |
|
|
2047 | w->wd = -2; |
|
|
2048 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
|
|
2049 | wlist_del (&fs_hash [slot].head, (WL)w); |
|
|
2050 | |
|
|
2051 | /* remove this watcher, if others are watching it, they will rearm */ |
|
|
2052 | inotify_rm_watch (fs_fd, wd); |
|
|
2053 | } |
|
|
2054 | |
|
|
2055 | static void noinline |
|
|
2056 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
|
|
2057 | { |
|
|
2058 | if (slot < 0) |
|
|
2059 | /* overflow, need to check for all hahs slots */ |
|
|
2060 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
2061 | infy_wd (EV_A_ slot, wd, ev); |
|
|
2062 | else |
|
|
2063 | { |
|
|
2064 | WL w_; |
|
|
2065 | |
|
|
2066 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
|
|
2067 | { |
|
|
2068 | ev_stat *w = (ev_stat *)w_; |
|
|
2069 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
|
|
2070 | |
|
|
2071 | if (w->wd == wd || wd == -1) |
|
|
2072 | { |
|
|
2073 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
|
|
2074 | { |
|
|
2075 | w->wd = -1; |
|
|
2076 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
2077 | } |
|
|
2078 | |
|
|
2079 | stat_timer_cb (EV_A_ &w->timer, 0); |
|
|
2080 | } |
|
|
2081 | } |
|
|
2082 | } |
|
|
2083 | } |
|
|
2084 | |
|
|
2085 | static void |
|
|
2086 | infy_cb (EV_P_ ev_io *w, int revents) |
|
|
2087 | { |
|
|
2088 | char buf [EV_INOTIFY_BUFSIZE]; |
|
|
2089 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2090 | int ofs; |
|
|
2091 | int len = read (fs_fd, buf, sizeof (buf)); |
|
|
2092 | |
|
|
2093 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
|
|
2094 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
2095 | } |
|
|
2096 | |
|
|
2097 | void inline_size |
|
|
2098 | infy_init (EV_P) |
|
|
2099 | { |
|
|
2100 | if (fs_fd != -2) |
|
|
2101 | return; |
|
|
2102 | |
|
|
2103 | fs_fd = inotify_init (); |
|
|
2104 | |
|
|
2105 | if (fs_fd >= 0) |
|
|
2106 | { |
|
|
2107 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
|
|
2108 | ev_set_priority (&fs_w, EV_MAXPRI); |
|
|
2109 | ev_io_start (EV_A_ &fs_w); |
|
|
2110 | } |
|
|
2111 | } |
|
|
2112 | |
|
|
2113 | void inline_size |
|
|
2114 | infy_fork (EV_P) |
|
|
2115 | { |
|
|
2116 | int slot; |
|
|
2117 | |
|
|
2118 | if (fs_fd < 0) |
|
|
2119 | return; |
|
|
2120 | |
|
|
2121 | close (fs_fd); |
|
|
2122 | fs_fd = inotify_init (); |
|
|
2123 | |
|
|
2124 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
2125 | { |
|
|
2126 | WL w_ = fs_hash [slot].head; |
|
|
2127 | fs_hash [slot].head = 0; |
|
|
2128 | |
|
|
2129 | while (w_) |
|
|
2130 | { |
|
|
2131 | ev_stat *w = (ev_stat *)w_; |
|
|
2132 | w_ = w_->next; /* lets us add this watcher */ |
|
|
2133 | |
|
|
2134 | w->wd = -1; |
|
|
2135 | |
|
|
2136 | if (fs_fd >= 0) |
|
|
2137 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
2138 | else |
|
|
2139 | ev_timer_start (EV_A_ &w->timer); |
|
|
2140 | } |
|
|
2141 | |
|
|
2142 | } |
|
|
2143 | } |
|
|
2144 | |
|
|
2145 | #endif |
|
|
2146 | |
|
|
2147 | void |
|
|
2148 | ev_stat_stat (EV_P_ ev_stat *w) |
|
|
2149 | { |
|
|
2150 | if (lstat (w->path, &w->attr) < 0) |
|
|
2151 | w->attr.st_nlink = 0; |
|
|
2152 | else if (!w->attr.st_nlink) |
|
|
2153 | w->attr.st_nlink = 1; |
|
|
2154 | } |
|
|
2155 | |
|
|
2156 | static void noinline |
|
|
2157 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
|
|
2158 | { |
|
|
2159 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
|
|
2160 | |
|
|
2161 | /* we copy this here each the time so that */ |
|
|
2162 | /* prev has the old value when the callback gets invoked */ |
|
|
2163 | w->prev = w->attr; |
|
|
2164 | ev_stat_stat (EV_A_ w); |
|
|
2165 | |
|
|
2166 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
|
|
2167 | if ( |
|
|
2168 | w->prev.st_dev != w->attr.st_dev |
|
|
2169 | || w->prev.st_ino != w->attr.st_ino |
|
|
2170 | || w->prev.st_mode != w->attr.st_mode |
|
|
2171 | || w->prev.st_nlink != w->attr.st_nlink |
|
|
2172 | || w->prev.st_uid != w->attr.st_uid |
|
|
2173 | || w->prev.st_gid != w->attr.st_gid |
|
|
2174 | || w->prev.st_rdev != w->attr.st_rdev |
|
|
2175 | || w->prev.st_size != w->attr.st_size |
|
|
2176 | || w->prev.st_atime != w->attr.st_atime |
|
|
2177 | || w->prev.st_mtime != w->attr.st_mtime |
|
|
2178 | || w->prev.st_ctime != w->attr.st_ctime |
|
|
2179 | ) { |
|
|
2180 | #if EV_USE_INOTIFY |
|
|
2181 | infy_del (EV_A_ w); |
|
|
2182 | infy_add (EV_A_ w); |
|
|
2183 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
2184 | #endif |
|
|
2185 | |
|
|
2186 | ev_feed_event (EV_A_ w, EV_STAT); |
|
|
2187 | } |
|
|
2188 | } |
|
|
2189 | |
|
|
2190 | void |
|
|
2191 | ev_stat_start (EV_P_ ev_stat *w) |
|
|
2192 | { |
|
|
2193 | if (expect_false (ev_is_active (w))) |
|
|
2194 | return; |
|
|
2195 | |
|
|
2196 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2197 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2198 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2199 | |
|
|
2200 | ev_stat_stat (EV_A_ w); |
|
|
2201 | |
|
|
2202 | if (w->interval < MIN_STAT_INTERVAL) |
|
|
2203 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2204 | |
|
|
2205 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
|
|
2206 | ev_set_priority (&w->timer, ev_priority (w)); |
|
|
2207 | |
|
|
2208 | #if EV_USE_INOTIFY |
|
|
2209 | infy_init (EV_A); |
|
|
2210 | |
|
|
2211 | if (fs_fd >= 0) |
|
|
2212 | infy_add (EV_A_ w); |
|
|
2213 | else |
|
|
2214 | #endif |
|
|
2215 | ev_timer_start (EV_A_ &w->timer); |
|
|
2216 | |
|
|
2217 | ev_start (EV_A_ (W)w, 1); |
|
|
2218 | } |
|
|
2219 | |
|
|
2220 | void |
|
|
2221 | ev_stat_stop (EV_P_ ev_stat *w) |
|
|
2222 | { |
|
|
2223 | clear_pending (EV_A_ (W)w); |
|
|
2224 | if (expect_false (!ev_is_active (w))) |
|
|
2225 | return; |
|
|
2226 | |
|
|
2227 | #if EV_USE_INOTIFY |
|
|
2228 | infy_del (EV_A_ w); |
|
|
2229 | #endif |
|
|
2230 | ev_timer_stop (EV_A_ &w->timer); |
|
|
2231 | |
|
|
2232 | ev_stop (EV_A_ (W)w); |
|
|
2233 | } |
|
|
2234 | #endif |
|
|
2235 | |
|
|
2236 | #if EV_IDLE_ENABLE |
1563 | void |
2237 | void |
1564 | ev_idle_start (EV_P_ ev_idle *w) |
2238 | ev_idle_start (EV_P_ ev_idle *w) |
1565 | { |
2239 | { |
1566 | if (expect_false (ev_is_active (w))) |
2240 | if (expect_false (ev_is_active (w))) |
1567 | return; |
2241 | return; |
1568 | |
2242 | |
|
|
2243 | pri_adjust (EV_A_ (W)w); |
|
|
2244 | |
|
|
2245 | { |
|
|
2246 | int active = ++idlecnt [ABSPRI (w)]; |
|
|
2247 | |
|
|
2248 | ++idleall; |
1569 | ev_start (EV_A_ (W)w, ++idlecnt); |
2249 | ev_start (EV_A_ (W)w, active); |
|
|
2250 | |
1570 | array_needsize (ev_idle *, idles, idlemax, idlecnt, EMPTY2); |
2251 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
1571 | idles [idlecnt - 1] = w; |
2252 | idles [ABSPRI (w)][active - 1] = w; |
|
|
2253 | } |
1572 | } |
2254 | } |
1573 | |
2255 | |
1574 | void |
2256 | void |
1575 | ev_idle_stop (EV_P_ ev_idle *w) |
2257 | ev_idle_stop (EV_P_ ev_idle *w) |
1576 | { |
2258 | { |
1577 | ev_clear_pending (EV_A_ (W)w); |
2259 | clear_pending (EV_A_ (W)w); |
1578 | if (expect_false (!ev_is_active (w))) |
2260 | if (expect_false (!ev_is_active (w))) |
1579 | return; |
2261 | return; |
1580 | |
2262 | |
1581 | { |
2263 | { |
1582 | int active = ((W)w)->active; |
2264 | int active = ((W)w)->active; |
1583 | idles [active - 1] = idles [--idlecnt]; |
2265 | |
|
|
2266 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
1584 | ((W)idles [active - 1])->active = active; |
2267 | ((W)idles [ABSPRI (w)][active - 1])->active = active; |
|
|
2268 | |
|
|
2269 | ev_stop (EV_A_ (W)w); |
|
|
2270 | --idleall; |
1585 | } |
2271 | } |
1586 | |
|
|
1587 | ev_stop (EV_A_ (W)w); |
|
|
1588 | } |
2272 | } |
|
|
2273 | #endif |
1589 | |
2274 | |
1590 | void |
2275 | void |
1591 | ev_prepare_start (EV_P_ ev_prepare *w) |
2276 | ev_prepare_start (EV_P_ ev_prepare *w) |
1592 | { |
2277 | { |
1593 | if (expect_false (ev_is_active (w))) |
2278 | if (expect_false (ev_is_active (w))) |
… | |
… | |
1599 | } |
2284 | } |
1600 | |
2285 | |
1601 | void |
2286 | void |
1602 | ev_prepare_stop (EV_P_ ev_prepare *w) |
2287 | ev_prepare_stop (EV_P_ ev_prepare *w) |
1603 | { |
2288 | { |
1604 | ev_clear_pending (EV_A_ (W)w); |
2289 | clear_pending (EV_A_ (W)w); |
1605 | if (expect_false (!ev_is_active (w))) |
2290 | if (expect_false (!ev_is_active (w))) |
1606 | return; |
2291 | return; |
1607 | |
2292 | |
1608 | { |
2293 | { |
1609 | int active = ((W)w)->active; |
2294 | int active = ((W)w)->active; |
… | |
… | |
1626 | } |
2311 | } |
1627 | |
2312 | |
1628 | void |
2313 | void |
1629 | ev_check_stop (EV_P_ ev_check *w) |
2314 | ev_check_stop (EV_P_ ev_check *w) |
1630 | { |
2315 | { |
1631 | ev_clear_pending (EV_A_ (W)w); |
2316 | clear_pending (EV_A_ (W)w); |
1632 | if (expect_false (!ev_is_active (w))) |
2317 | if (expect_false (!ev_is_active (w))) |
1633 | return; |
2318 | return; |
1634 | |
2319 | |
1635 | { |
2320 | { |
1636 | int active = ((W)w)->active; |
2321 | int active = ((W)w)->active; |
… | |
… | |
1639 | } |
2324 | } |
1640 | |
2325 | |
1641 | ev_stop (EV_A_ (W)w); |
2326 | ev_stop (EV_A_ (W)w); |
1642 | } |
2327 | } |
1643 | |
2328 | |
1644 | #ifndef SA_RESTART |
|
|
1645 | # define SA_RESTART 0 |
|
|
1646 | #endif |
|
|
1647 | |
|
|
1648 | void |
|
|
1649 | ev_signal_start (EV_P_ ev_signal *w) |
|
|
1650 | { |
|
|
1651 | #if EV_MULTIPLICITY |
|
|
1652 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1653 | #endif |
|
|
1654 | if (expect_false (ev_is_active (w))) |
|
|
1655 | return; |
|
|
1656 | |
|
|
1657 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
|
|
1658 | |
|
|
1659 | ev_start (EV_A_ (W)w, 1); |
|
|
1660 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
|
|
1661 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
|
|
1662 | |
|
|
1663 | if (!((WL)w)->next) |
|
|
1664 | { |
|
|
1665 | #if _WIN32 |
|
|
1666 | signal (w->signum, sighandler); |
|
|
1667 | #else |
|
|
1668 | struct sigaction sa; |
|
|
1669 | sa.sa_handler = sighandler; |
|
|
1670 | sigfillset (&sa.sa_mask); |
|
|
1671 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
|
|
1672 | sigaction (w->signum, &sa, 0); |
|
|
1673 | #endif |
|
|
1674 | } |
|
|
1675 | } |
|
|
1676 | |
|
|
1677 | void |
|
|
1678 | ev_signal_stop (EV_P_ ev_signal *w) |
|
|
1679 | { |
|
|
1680 | ev_clear_pending (EV_A_ (W)w); |
|
|
1681 | if (expect_false (!ev_is_active (w))) |
|
|
1682 | return; |
|
|
1683 | |
|
|
1684 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
|
|
1685 | ev_stop (EV_A_ (W)w); |
|
|
1686 | |
|
|
1687 | if (!signals [w->signum - 1].head) |
|
|
1688 | signal (w->signum, SIG_DFL); |
|
|
1689 | } |
|
|
1690 | |
|
|
1691 | void |
|
|
1692 | ev_child_start (EV_P_ ev_child *w) |
|
|
1693 | { |
|
|
1694 | #if EV_MULTIPLICITY |
|
|
1695 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1696 | #endif |
|
|
1697 | if (expect_false (ev_is_active (w))) |
|
|
1698 | return; |
|
|
1699 | |
|
|
1700 | ev_start (EV_A_ (W)w, 1); |
|
|
1701 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
|
|
1702 | } |
|
|
1703 | |
|
|
1704 | void |
|
|
1705 | ev_child_stop (EV_P_ ev_child *w) |
|
|
1706 | { |
|
|
1707 | ev_clear_pending (EV_A_ (W)w); |
|
|
1708 | if (expect_false (!ev_is_active (w))) |
|
|
1709 | return; |
|
|
1710 | |
|
|
1711 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
|
|
1712 | ev_stop (EV_A_ (W)w); |
|
|
1713 | } |
|
|
1714 | |
|
|
1715 | #if EV_EMBED_ENABLE |
2329 | #if EV_EMBED_ENABLE |
1716 | void noinline |
2330 | void noinline |
1717 | ev_embed_sweep (EV_P_ ev_embed *w) |
2331 | ev_embed_sweep (EV_P_ ev_embed *w) |
1718 | { |
2332 | { |
1719 | ev_loop (w->loop, EVLOOP_NONBLOCK); |
2333 | ev_loop (w->other, EVLOOP_NONBLOCK); |
1720 | } |
2334 | } |
1721 | |
2335 | |
1722 | static void |
2336 | static void |
1723 | embed_cb (EV_P_ ev_io *io, int revents) |
2337 | embed_io_cb (EV_P_ ev_io *io, int revents) |
1724 | { |
2338 | { |
1725 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
2339 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
1726 | |
2340 | |
1727 | if (ev_cb (w)) |
2341 | if (ev_cb (w)) |
1728 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2342 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
1729 | else |
2343 | else |
1730 | ev_embed_sweep (loop, w); |
2344 | ev_loop (w->other, EVLOOP_NONBLOCK); |
1731 | } |
2345 | } |
|
|
2346 | |
|
|
2347 | static void |
|
|
2348 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
|
|
2349 | { |
|
|
2350 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
|
|
2351 | |
|
|
2352 | { |
|
|
2353 | struct ev_loop *loop = w->other; |
|
|
2354 | |
|
|
2355 | while (fdchangecnt) |
|
|
2356 | { |
|
|
2357 | fd_reify (EV_A); |
|
|
2358 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
2359 | } |
|
|
2360 | } |
|
|
2361 | } |
|
|
2362 | |
|
|
2363 | #if 0 |
|
|
2364 | static void |
|
|
2365 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
|
|
2366 | { |
|
|
2367 | ev_idle_stop (EV_A_ idle); |
|
|
2368 | } |
|
|
2369 | #endif |
1732 | |
2370 | |
1733 | void |
2371 | void |
1734 | ev_embed_start (EV_P_ ev_embed *w) |
2372 | ev_embed_start (EV_P_ ev_embed *w) |
1735 | { |
2373 | { |
1736 | if (expect_false (ev_is_active (w))) |
2374 | if (expect_false (ev_is_active (w))) |
1737 | return; |
2375 | return; |
1738 | |
2376 | |
1739 | { |
2377 | { |
1740 | struct ev_loop *loop = w->loop; |
2378 | struct ev_loop *loop = w->other; |
1741 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2379 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
1742 | ev_io_init (&w->io, embed_cb, backend_fd, EV_READ); |
2380 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
1743 | } |
2381 | } |
1744 | |
2382 | |
1745 | ev_set_priority (&w->io, ev_priority (w)); |
2383 | ev_set_priority (&w->io, ev_priority (w)); |
1746 | ev_io_start (EV_A_ &w->io); |
2384 | ev_io_start (EV_A_ &w->io); |
1747 | |
2385 | |
|
|
2386 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
|
|
2387 | ev_set_priority (&w->prepare, EV_MINPRI); |
|
|
2388 | ev_prepare_start (EV_A_ &w->prepare); |
|
|
2389 | |
|
|
2390 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
|
|
2391 | |
1748 | ev_start (EV_A_ (W)w, 1); |
2392 | ev_start (EV_A_ (W)w, 1); |
1749 | } |
2393 | } |
1750 | |
2394 | |
1751 | void |
2395 | void |
1752 | ev_embed_stop (EV_P_ ev_embed *w) |
2396 | ev_embed_stop (EV_P_ ev_embed *w) |
1753 | { |
2397 | { |
1754 | ev_clear_pending (EV_A_ (W)w); |
2398 | clear_pending (EV_A_ (W)w); |
1755 | if (expect_false (!ev_is_active (w))) |
2399 | if (expect_false (!ev_is_active (w))) |
1756 | return; |
2400 | return; |
1757 | |
2401 | |
1758 | ev_io_stop (EV_A_ &w->io); |
2402 | ev_io_stop (EV_A_ &w->io); |
|
|
2403 | ev_prepare_stop (EV_A_ &w->prepare); |
1759 | |
2404 | |
1760 | ev_stop (EV_A_ (W)w); |
2405 | ev_stop (EV_A_ (W)w); |
1761 | } |
2406 | } |
1762 | #endif |
2407 | #endif |
1763 | |
2408 | |
1764 | #if EV_STAT_ENABLE |
2409 | #if EV_FORK_ENABLE |
1765 | |
|
|
1766 | # ifdef _WIN32 |
|
|
1767 | # define lstat(a,b) stat(a,b) |
|
|
1768 | # endif |
|
|
1769 | |
|
|
1770 | void |
2410 | void |
1771 | ev_stat_stat (EV_P_ ev_stat *w) |
|
|
1772 | { |
|
|
1773 | if (lstat (w->path, &w->attr) < 0) |
|
|
1774 | w->attr.st_nlink = 0; |
|
|
1775 | else if (!w->attr.st_nlink) |
|
|
1776 | w->attr.st_nlink = 1; |
|
|
1777 | } |
|
|
1778 | |
|
|
1779 | static void |
|
|
1780 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
|
|
1781 | { |
|
|
1782 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
|
|
1783 | |
|
|
1784 | /* we copy this here each the time so that */ |
|
|
1785 | /* prev has the old value when the callback gets invoked */ |
|
|
1786 | w->prev = w->attr; |
|
|
1787 | ev_stat_stat (EV_A_ w); |
|
|
1788 | |
|
|
1789 | if (memcmp (&w->prev, &w->attr, sizeof (ev_statdata))) |
|
|
1790 | ev_feed_event (EV_A_ w, EV_STAT); |
|
|
1791 | } |
|
|
1792 | |
|
|
1793 | void |
|
|
1794 | ev_stat_start (EV_P_ ev_stat *w) |
2411 | ev_fork_start (EV_P_ ev_fork *w) |
1795 | { |
2412 | { |
1796 | if (expect_false (ev_is_active (w))) |
2413 | if (expect_false (ev_is_active (w))) |
1797 | return; |
2414 | return; |
1798 | |
2415 | |
1799 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
1800 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
1801 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
1802 | |
|
|
1803 | ev_stat_stat (EV_A_ w); |
|
|
1804 | |
|
|
1805 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
|
|
1806 | ev_set_priority (&w->timer, ev_priority (w)); |
|
|
1807 | ev_timer_start (EV_A_ &w->timer); |
|
|
1808 | |
|
|
1809 | ev_start (EV_A_ (W)w, 1); |
2416 | ev_start (EV_A_ (W)w, ++forkcnt); |
|
|
2417 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
|
|
2418 | forks [forkcnt - 1] = w; |
1810 | } |
2419 | } |
1811 | |
2420 | |
1812 | void |
2421 | void |
1813 | ev_stat_stop (EV_P_ ev_stat *w) |
2422 | ev_fork_stop (EV_P_ ev_fork *w) |
1814 | { |
2423 | { |
1815 | ev_clear_pending (EV_A_ (W)w); |
2424 | clear_pending (EV_A_ (W)w); |
1816 | if (expect_false (!ev_is_active (w))) |
2425 | if (expect_false (!ev_is_active (w))) |
1817 | return; |
2426 | return; |
1818 | |
2427 | |
1819 | ev_timer_stop (EV_A_ &w->timer); |
2428 | { |
|
|
2429 | int active = ((W)w)->active; |
|
|
2430 | forks [active - 1] = forks [--forkcnt]; |
|
|
2431 | ((W)forks [active - 1])->active = active; |
|
|
2432 | } |
1820 | |
2433 | |
1821 | ev_stop (EV_A_ (W)w); |
2434 | ev_stop (EV_A_ (W)w); |
|
|
2435 | } |
|
|
2436 | #endif |
|
|
2437 | |
|
|
2438 | #if EV_ASYNC_ENABLE |
|
|
2439 | void |
|
|
2440 | ev_async_start (EV_P_ ev_async *w) |
|
|
2441 | { |
|
|
2442 | if (expect_false (ev_is_active (w))) |
|
|
2443 | return; |
|
|
2444 | |
|
|
2445 | evpipe_init (EV_A); |
|
|
2446 | |
|
|
2447 | ev_start (EV_A_ (W)w, ++asynccnt); |
|
|
2448 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
|
|
2449 | asyncs [asynccnt - 1] = w; |
|
|
2450 | } |
|
|
2451 | |
|
|
2452 | void |
|
|
2453 | ev_async_stop (EV_P_ ev_async *w) |
|
|
2454 | { |
|
|
2455 | clear_pending (EV_A_ (W)w); |
|
|
2456 | if (expect_false (!ev_is_active (w))) |
|
|
2457 | return; |
|
|
2458 | |
|
|
2459 | { |
|
|
2460 | int active = ((W)w)->active; |
|
|
2461 | asyncs [active - 1] = asyncs [--asynccnt]; |
|
|
2462 | ((W)asyncs [active - 1])->active = active; |
|
|
2463 | } |
|
|
2464 | |
|
|
2465 | ev_stop (EV_A_ (W)w); |
|
|
2466 | } |
|
|
2467 | |
|
|
2468 | void |
|
|
2469 | ev_async_send (EV_P_ ev_async *w) |
|
|
2470 | { |
|
|
2471 | w->sent = 1; |
|
|
2472 | evpipe_write (EV_A_ &gotasync); |
1822 | } |
2473 | } |
1823 | #endif |
2474 | #endif |
1824 | |
2475 | |
1825 | /*****************************************************************************/ |
2476 | /*****************************************************************************/ |
1826 | |
2477 | |
… | |
… | |
1884 | ev_timer_set (&once->to, timeout, 0.); |
2535 | ev_timer_set (&once->to, timeout, 0.); |
1885 | ev_timer_start (EV_A_ &once->to); |
2536 | ev_timer_start (EV_A_ &once->to); |
1886 | } |
2537 | } |
1887 | } |
2538 | } |
1888 | |
2539 | |
|
|
2540 | #if EV_MULTIPLICITY |
|
|
2541 | #include "ev_wrap.h" |
|
|
2542 | #endif |
|
|
2543 | |
1889 | #ifdef __cplusplus |
2544 | #ifdef __cplusplus |
1890 | } |
2545 | } |
1891 | #endif |
2546 | #endif |
1892 | |
2547 | |