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 | * |
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10 | * 1. Redistributions of source code must retain the above copyright notice, |
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11 | * this list of conditions and the following disclaimer. |
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12 | * |
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13 | * 2. Redistributions in binary form must reproduce the above copyright |
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14 | * notice, this list of conditions and the following disclaimer in the |
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15 | * documentation and/or other materials provided with the distribution. |
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16 | * |
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17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
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18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
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19 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
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20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
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21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
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22 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
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23 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
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24 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
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25 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
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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 |
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22 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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23 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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24 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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25 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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26 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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27 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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28 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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29 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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30 | */ |
38 | */ |
31 | |
39 | |
32 | #ifdef __cplusplus |
40 | #ifdef __cplusplus |
33 | extern "C" { |
41 | extern "C" { |
34 | #endif |
42 | #endif |
35 | |
43 | |
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44 | /* this big block deduces configuration from config.h */ |
36 | #ifndef EV_STANDALONE |
45 | #ifndef EV_STANDALONE |
37 | # ifdef EV_CONFIG_H |
46 | # ifdef EV_CONFIG_H |
38 | # include EV_CONFIG_H |
47 | # include EV_CONFIG_H |
39 | # else |
48 | # else |
40 | # include "config.h" |
49 | # include "config.h" |
… | |
… | |
110 | # else |
119 | # else |
111 | # define EV_USE_INOTIFY 0 |
120 | # define EV_USE_INOTIFY 0 |
112 | # endif |
121 | # endif |
113 | # endif |
122 | # endif |
114 | |
123 | |
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124 | # ifndef EV_USE_EVENTFD |
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125 | # if HAVE_EVENTFD |
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126 | # define EV_USE_EVENTFD 1 |
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127 | # else |
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128 | # define EV_USE_EVENTFD 0 |
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129 | # endif |
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130 | # endif |
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131 | |
115 | #endif |
132 | #endif |
116 | |
133 | |
117 | #include <math.h> |
134 | #include <math.h> |
118 | #include <stdlib.h> |
135 | #include <stdlib.h> |
119 | #include <fcntl.h> |
136 | #include <fcntl.h> |
… | |
… | |
144 | # ifndef EV_SELECT_IS_WINSOCKET |
161 | # ifndef EV_SELECT_IS_WINSOCKET |
145 | # define EV_SELECT_IS_WINSOCKET 1 |
162 | # define EV_SELECT_IS_WINSOCKET 1 |
146 | # endif |
163 | # endif |
147 | #endif |
164 | #endif |
148 | |
165 | |
149 | /**/ |
166 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
150 | |
167 | |
151 | #ifndef EV_USE_MONOTONIC |
168 | #ifndef EV_USE_MONOTONIC |
152 | # define EV_USE_MONOTONIC 0 |
169 | # define EV_USE_MONOTONIC 0 |
153 | #endif |
170 | #endif |
154 | |
171 | |
… | |
… | |
171 | # define EV_USE_POLL 1 |
188 | # define EV_USE_POLL 1 |
172 | # endif |
189 | # endif |
173 | #endif |
190 | #endif |
174 | |
191 | |
175 | #ifndef EV_USE_EPOLL |
192 | #ifndef EV_USE_EPOLL |
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193 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
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194 | # define EV_USE_EPOLL 1 |
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195 | # else |
176 | # define EV_USE_EPOLL 0 |
196 | # define EV_USE_EPOLL 0 |
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197 | # endif |
177 | #endif |
198 | #endif |
178 | |
199 | |
179 | #ifndef EV_USE_KQUEUE |
200 | #ifndef EV_USE_KQUEUE |
180 | # define EV_USE_KQUEUE 0 |
201 | # define EV_USE_KQUEUE 0 |
181 | #endif |
202 | #endif |
… | |
… | |
183 | #ifndef EV_USE_PORT |
204 | #ifndef EV_USE_PORT |
184 | # define EV_USE_PORT 0 |
205 | # define EV_USE_PORT 0 |
185 | #endif |
206 | #endif |
186 | |
207 | |
187 | #ifndef EV_USE_INOTIFY |
208 | #ifndef EV_USE_INOTIFY |
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209 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
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210 | # define EV_USE_INOTIFY 1 |
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211 | # else |
188 | # define EV_USE_INOTIFY 0 |
212 | # define EV_USE_INOTIFY 0 |
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213 | # endif |
189 | #endif |
214 | #endif |
190 | |
215 | |
191 | #ifndef EV_PID_HASHSIZE |
216 | #ifndef EV_PID_HASHSIZE |
192 | # if EV_MINIMAL |
217 | # if EV_MINIMAL |
193 | # define EV_PID_HASHSIZE 1 |
218 | # define EV_PID_HASHSIZE 1 |
… | |
… | |
202 | # else |
227 | # else |
203 | # define EV_INOTIFY_HASHSIZE 16 |
228 | # define EV_INOTIFY_HASHSIZE 16 |
204 | # endif |
229 | # endif |
205 | #endif |
230 | #endif |
206 | |
231 | |
207 | /**/ |
232 | #ifndef EV_USE_EVENTFD |
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233 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
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234 | # define EV_USE_EVENTFD 1 |
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235 | # else |
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236 | # define EV_USE_EVENTFD 0 |
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237 | # endif |
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238 | #endif |
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239 | |
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240 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
208 | |
241 | |
209 | #ifndef CLOCK_MONOTONIC |
242 | #ifndef CLOCK_MONOTONIC |
210 | # undef EV_USE_MONOTONIC |
243 | # undef EV_USE_MONOTONIC |
211 | # define EV_USE_MONOTONIC 0 |
244 | # define EV_USE_MONOTONIC 0 |
212 | #endif |
245 | #endif |
… | |
… | |
231 | # include <sys/inotify.h> |
264 | # include <sys/inotify.h> |
232 | #endif |
265 | #endif |
233 | |
266 | |
234 | #if EV_SELECT_IS_WINSOCKET |
267 | #if EV_SELECT_IS_WINSOCKET |
235 | # include <winsock.h> |
268 | # include <winsock.h> |
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269 | #endif |
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270 | |
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271 | #if EV_USE_EVENTFD |
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272 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
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273 | # include <stdint.h> |
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274 | # ifdef __cplusplus |
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275 | extern "C" { |
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276 | # endif |
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277 | int eventfd (unsigned int initval, int flags); |
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278 | # ifdef __cplusplus |
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279 | } |
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280 | # endif |
236 | #endif |
281 | #endif |
237 | |
282 | |
238 | /**/ |
283 | /**/ |
239 | |
284 | |
240 | /* |
285 | /* |
… | |
… | |
255 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
300 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
256 | # define noinline __attribute__ ((noinline)) |
301 | # define noinline __attribute__ ((noinline)) |
257 | #else |
302 | #else |
258 | # define expect(expr,value) (expr) |
303 | # define expect(expr,value) (expr) |
259 | # define noinline |
304 | # define noinline |
260 | # if __STDC_VERSION__ < 199901L |
305 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
261 | # define inline |
306 | # define inline |
262 | # endif |
307 | # endif |
263 | #endif |
308 | #endif |
264 | |
309 | |
265 | #define expect_false(expr) expect ((expr) != 0, 0) |
310 | #define expect_false(expr) expect ((expr) != 0, 0) |
… | |
… | |
280 | |
325 | |
281 | typedef ev_watcher *W; |
326 | typedef ev_watcher *W; |
282 | typedef ev_watcher_list *WL; |
327 | typedef ev_watcher_list *WL; |
283 | typedef ev_watcher_time *WT; |
328 | typedef ev_watcher_time *WT; |
284 | |
329 | |
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330 | #define ev_active(w) ((W)(w))->active |
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331 | #define ev_at(w) ((WT)(w))->at |
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332 | |
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333 | #if EV_USE_MONOTONIC |
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334 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
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335 | /* giving it a reasonably high chance of working on typical architetcures */ |
285 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
336 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
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337 | #endif |
286 | |
338 | |
287 | #ifdef _WIN32 |
339 | #ifdef _WIN32 |
288 | # include "ev_win32.c" |
340 | # include "ev_win32.c" |
289 | #endif |
341 | #endif |
290 | |
342 | |
… | |
… | |
311 | perror (msg); |
363 | perror (msg); |
312 | abort (); |
364 | abort (); |
313 | } |
365 | } |
314 | } |
366 | } |
315 | |
367 | |
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368 | static void * |
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369 | ev_realloc_emul (void *ptr, long size) |
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370 | { |
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371 | /* some systems, notably openbsd and darwin, fail to properly |
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372 | * implement realloc (x, 0) (as required by both ansi c-98 and |
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373 | * the single unix specification, so work around them here. |
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374 | */ |
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375 | |
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376 | if (size) |
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377 | return realloc (ptr, size); |
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378 | |
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379 | free (ptr); |
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380 | return 0; |
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381 | } |
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382 | |
316 | static void *(*alloc)(void *ptr, long size); |
383 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
317 | |
384 | |
318 | void |
385 | void |
319 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
386 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
320 | { |
387 | { |
321 | alloc = cb; |
388 | alloc = cb; |
322 | } |
389 | } |
323 | |
390 | |
324 | inline_speed void * |
391 | inline_speed void * |
325 | ev_realloc (void *ptr, long size) |
392 | ev_realloc (void *ptr, long size) |
326 | { |
393 | { |
327 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
394 | ptr = alloc (ptr, size); |
328 | |
395 | |
329 | if (!ptr && size) |
396 | if (!ptr && size) |
330 | { |
397 | { |
331 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
398 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
332 | abort (); |
399 | abort (); |
… | |
… | |
439 | ts.tv_sec = (time_t)delay; |
506 | ts.tv_sec = (time_t)delay; |
440 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
507 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
441 | |
508 | |
442 | nanosleep (&ts, 0); |
509 | nanosleep (&ts, 0); |
443 | #elif defined(_WIN32) |
510 | #elif defined(_WIN32) |
444 | Sleep (delay * 1e3); |
511 | Sleep ((unsigned long)(delay * 1e3)); |
445 | #else |
512 | #else |
446 | struct timeval tv; |
513 | struct timeval tv; |
447 | |
514 | |
448 | tv.tv_sec = (time_t)delay; |
515 | tv.tv_sec = (time_t)delay; |
449 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
516 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
… | |
… | |
452 | #endif |
519 | #endif |
453 | } |
520 | } |
454 | } |
521 | } |
455 | |
522 | |
456 | /*****************************************************************************/ |
523 | /*****************************************************************************/ |
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524 | |
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525 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
457 | |
526 | |
458 | int inline_size |
527 | int inline_size |
459 | array_nextsize (int elem, int cur, int cnt) |
528 | array_nextsize (int elem, int cur, int cnt) |
460 | { |
529 | { |
461 | int ncur = cur + 1; |
530 | int ncur = cur + 1; |
462 | |
531 | |
463 | do |
532 | do |
464 | ncur <<= 1; |
533 | ncur <<= 1; |
465 | while (cnt > ncur); |
534 | while (cnt > ncur); |
466 | |
535 | |
467 | /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */ |
536 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
468 | if (elem * ncur > 4096) |
537 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
469 | { |
538 | { |
470 | ncur *= elem; |
539 | ncur *= elem; |
471 | ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095; |
540 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
472 | ncur = ncur - sizeof (void *) * 4; |
541 | ncur = ncur - sizeof (void *) * 4; |
473 | ncur /= elem; |
542 | ncur /= elem; |
474 | } |
543 | } |
475 | |
544 | |
476 | return ncur; |
545 | return ncur; |
… | |
… | |
588 | |
657 | |
589 | #if EV_SELECT_IS_WINSOCKET |
658 | #if EV_SELECT_IS_WINSOCKET |
590 | if (events) |
659 | if (events) |
591 | { |
660 | { |
592 | unsigned long argp; |
661 | unsigned long argp; |
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662 | #ifdef EV_FD_TO_WIN32_HANDLE |
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663 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
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664 | #else |
593 | anfd->handle = _get_osfhandle (fd); |
665 | anfd->handle = _get_osfhandle (fd); |
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666 | #endif |
594 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
667 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
595 | } |
668 | } |
596 | #endif |
669 | #endif |
597 | |
670 | |
598 | { |
671 | { |
… | |
… | |
686 | } |
759 | } |
687 | } |
760 | } |
688 | |
761 | |
689 | /*****************************************************************************/ |
762 | /*****************************************************************************/ |
690 | |
763 | |
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764 | /* |
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765 | * at the moment we allow libev the luxury of two heaps, |
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766 | * a small-code-size 2-heap one and a ~1.5kb larger 4-heap |
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767 | * which is more cache-efficient. |
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768 | * the difference is about 5% with 50000+ watchers. |
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769 | */ |
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770 | #define USE_4HEAP !EV_MINIMAL |
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771 | #define USE_4HEAP 1/* they do not work corretcly */ |
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772 | #if USE_4HEAP |
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773 | |
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774 | #define DHEAP 4 |
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775 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
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776 | |
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777 | /* towards the root */ |
691 | void inline_speed |
778 | void inline_speed |
692 | upheap (WT *heap, int k) |
779 | upheap (WT *heap, int k) |
693 | { |
780 | { |
694 | WT w = heap [k]; |
781 | WT w = heap [k]; |
695 | |
782 | |
696 | while (k) |
783 | for (;;) |
697 | { |
784 | { |
698 | int p = (k - 1) >> 1; |
785 | int p = ((k - HEAP0 - 1) / DHEAP) + HEAP0; |
699 | |
786 | |
700 | if (heap [p]->at <= w->at) |
787 | if (p == k || heap [p]->at <= w->at) |
701 | break; |
788 | break; |
702 | |
789 | |
703 | heap [k] = heap [p]; |
790 | heap [k] = heap [p]; |
704 | ((W)heap [k])->active = k + 1; |
791 | ev_active (heap [k]) = k; |
705 | k = p; |
792 | k = p; |
706 | } |
793 | } |
707 | |
794 | |
708 | heap [k] = w; |
795 | heap [k] = w; |
709 | ((W)heap [k])->active = k + 1; |
796 | ev_active (heap [k]) = k; |
710 | } |
797 | } |
711 | |
798 | |
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799 | /* away from the root */ |
712 | void inline_speed |
800 | void inline_speed |
713 | downheap (WT *heap, int N, int k) |
801 | downheap (WT *heap, int N, int k) |
714 | { |
802 | { |
715 | WT w = heap [k]; |
803 | WT w = heap [k]; |
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804 | WT *E = heap + N + HEAP0; |
716 | |
805 | |
717 | for (;;) |
806 | for (;;) |
718 | { |
807 | { |
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808 | ev_tstamp minat; |
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809 | WT *minpos; |
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810 | WT *pos = heap + DHEAP * (k - HEAP0) + HEAP0; |
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811 | |
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812 | // find minimum child |
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813 | if (expect_true (pos + DHEAP - 1 < E)) |
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814 | { |
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815 | /* fast path */ |
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816 | (minpos = pos + 0), (minat = (*minpos)->at); |
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817 | if (pos [1]->at < minat) (minpos = pos + 1), (minat = (*minpos)->at); |
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818 | if (pos [2]->at < minat) (minpos = pos + 2), (minat = (*minpos)->at); |
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819 | if (pos [3]->at < minat) (minpos = pos + 3), (minat = (*minpos)->at); |
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820 | } |
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821 | else |
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822 | { |
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823 | /* slow path */ |
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824 | if (pos >= E) |
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825 | break; |
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826 | (minpos = pos + 0), (minat = (*minpos)->at); |
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827 | if (pos + 1 < E && pos [1]->at < minat) (minpos = pos + 1), (minat = (*minpos)->at); |
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828 | if (pos + 2 < E && pos [2]->at < minat) (minpos = pos + 2), (minat = (*minpos)->at); |
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829 | if (pos + 3 < E && pos [3]->at < minat) (minpos = pos + 3), (minat = (*minpos)->at); |
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830 | } |
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831 | |
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832 | if (w->at <= minat) |
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833 | break; |
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834 | |
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835 | ev_active (*minpos) = k; |
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836 | heap [k] = *minpos; |
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837 | |
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838 | k = minpos - heap; |
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839 | } |
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840 | |
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841 | heap [k] = w; |
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842 | ev_active (heap [k]) = k; |
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843 | } |
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844 | |
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845 | #else // 4HEAP |
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846 | |
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847 | #define HEAP0 1 |
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848 | |
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849 | /* towards the root */ |
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850 | void inline_speed |
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851 | upheap (WT *heap, int k) |
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852 | { |
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853 | WT w = heap [k]; |
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854 | |
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855 | for (;;) |
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856 | { |
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857 | int p = k >> 1; |
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858 | |
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859 | /* maybe we could use a dummy element at heap [0]? */ |
|
|
860 | if (!p || heap [p]->at <= w->at) |
|
|
861 | break; |
|
|
862 | |
|
|
863 | heap [k] = heap [p]; |
|
|
864 | ev_active (heap [k]) = k; |
|
|
865 | k = p; |
|
|
866 | } |
|
|
867 | |
|
|
868 | heap [k] = w; |
|
|
869 | ev_active (heap [k]) = k; |
|
|
870 | } |
|
|
871 | |
|
|
872 | /* away from the root */ |
|
|
873 | void inline_speed |
|
|
874 | downheap (WT *heap, int N, int k) |
|
|
875 | { |
|
|
876 | WT w = heap [k]; |
|
|
877 | |
|
|
878 | for (;;) |
|
|
879 | { |
719 | int c = (k << 1) + 1; |
880 | int c = k << 1; |
720 | |
881 | |
721 | if (c >= N) |
882 | if (c > N) |
722 | break; |
883 | break; |
723 | |
884 | |
724 | c += c + 1 < N && heap [c]->at > heap [c + 1]->at |
885 | c += c + 1 < N && heap [c]->at > heap [c + 1]->at |
725 | ? 1 : 0; |
886 | ? 1 : 0; |
726 | |
887 | |
727 | if (w->at <= heap [c]->at) |
888 | if (w->at <= heap [c]->at) |
728 | break; |
889 | break; |
729 | |
890 | |
730 | heap [k] = heap [c]; |
891 | heap [k] = heap [c]; |
731 | ((W)heap [k])->active = k + 1; |
892 | ((W)heap [k])->active = k; |
732 | |
893 | |
733 | k = c; |
894 | k = c; |
734 | } |
895 | } |
735 | |
896 | |
736 | heap [k] = w; |
897 | heap [k] = w; |
737 | ((W)heap [k])->active = k + 1; |
898 | ev_active (heap [k]) = k; |
738 | } |
899 | } |
|
|
900 | #endif |
739 | |
901 | |
740 | void inline_size |
902 | void inline_size |
741 | adjustheap (WT *heap, int N, int k) |
903 | adjustheap (WT *heap, int N, int k) |
742 | { |
904 | { |
743 | upheap (heap, k); |
905 | upheap (heap, k); |
… | |
… | |
747 | /*****************************************************************************/ |
909 | /*****************************************************************************/ |
748 | |
910 | |
749 | typedef struct |
911 | typedef struct |
750 | { |
912 | { |
751 | WL head; |
913 | WL head; |
752 | sig_atomic_t volatile gotsig; |
914 | EV_ATOMIC_T gotsig; |
753 | } ANSIG; |
915 | } ANSIG; |
754 | |
916 | |
755 | static ANSIG *signals; |
917 | static ANSIG *signals; |
756 | static int signalmax; |
918 | static int signalmax; |
757 | |
919 | |
758 | static int sigpipe [2]; |
920 | static EV_ATOMIC_T gotsig; |
759 | static sig_atomic_t volatile gotsig; |
|
|
760 | static ev_io sigev; |
|
|
761 | |
921 | |
762 | void inline_size |
922 | void inline_size |
763 | signals_init (ANSIG *base, int count) |
923 | signals_init (ANSIG *base, int count) |
764 | { |
924 | { |
765 | while (count--) |
925 | while (count--) |
… | |
… | |
769 | |
929 | |
770 | ++base; |
930 | ++base; |
771 | } |
931 | } |
772 | } |
932 | } |
773 | |
933 | |
774 | static void |
934 | /*****************************************************************************/ |
775 | sighandler (int signum) |
|
|
776 | { |
|
|
777 | #if _WIN32 |
|
|
778 | signal (signum, sighandler); |
|
|
779 | #endif |
|
|
780 | |
|
|
781 | signals [signum - 1].gotsig = 1; |
|
|
782 | |
|
|
783 | if (!gotsig) |
|
|
784 | { |
|
|
785 | int old_errno = errno; |
|
|
786 | gotsig = 1; |
|
|
787 | write (sigpipe [1], &signum, 1); |
|
|
788 | errno = old_errno; |
|
|
789 | } |
|
|
790 | } |
|
|
791 | |
|
|
792 | void noinline |
|
|
793 | ev_feed_signal_event (EV_P_ int signum) |
|
|
794 | { |
|
|
795 | WL w; |
|
|
796 | |
|
|
797 | #if EV_MULTIPLICITY |
|
|
798 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
799 | #endif |
|
|
800 | |
|
|
801 | --signum; |
|
|
802 | |
|
|
803 | if (signum < 0 || signum >= signalmax) |
|
|
804 | return; |
|
|
805 | |
|
|
806 | signals [signum].gotsig = 0; |
|
|
807 | |
|
|
808 | for (w = signals [signum].head; w; w = w->next) |
|
|
809 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
810 | } |
|
|
811 | |
|
|
812 | static void |
|
|
813 | sigcb (EV_P_ ev_io *iow, int revents) |
|
|
814 | { |
|
|
815 | int signum; |
|
|
816 | |
|
|
817 | read (sigpipe [0], &revents, 1); |
|
|
818 | gotsig = 0; |
|
|
819 | |
|
|
820 | for (signum = signalmax; signum--; ) |
|
|
821 | if (signals [signum].gotsig) |
|
|
822 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
823 | } |
|
|
824 | |
935 | |
825 | void inline_speed |
936 | void inline_speed |
826 | fd_intern (int fd) |
937 | fd_intern (int fd) |
827 | { |
938 | { |
828 | #ifdef _WIN32 |
939 | #ifdef _WIN32 |
… | |
… | |
833 | fcntl (fd, F_SETFL, O_NONBLOCK); |
944 | fcntl (fd, F_SETFL, O_NONBLOCK); |
834 | #endif |
945 | #endif |
835 | } |
946 | } |
836 | |
947 | |
837 | static void noinline |
948 | static void noinline |
838 | siginit (EV_P) |
949 | evpipe_init (EV_P) |
839 | { |
950 | { |
|
|
951 | if (!ev_is_active (&pipeev)) |
|
|
952 | { |
|
|
953 | #if EV_USE_EVENTFD |
|
|
954 | if ((evfd = eventfd (0, 0)) >= 0) |
|
|
955 | { |
|
|
956 | evpipe [0] = -1; |
|
|
957 | fd_intern (evfd); |
|
|
958 | ev_io_set (&pipeev, evfd, EV_READ); |
|
|
959 | } |
|
|
960 | else |
|
|
961 | #endif |
|
|
962 | { |
|
|
963 | while (pipe (evpipe)) |
|
|
964 | syserr ("(libev) error creating signal/async pipe"); |
|
|
965 | |
840 | fd_intern (sigpipe [0]); |
966 | fd_intern (evpipe [0]); |
841 | fd_intern (sigpipe [1]); |
967 | fd_intern (evpipe [1]); |
|
|
968 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
|
|
969 | } |
842 | |
970 | |
843 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
|
|
844 | ev_io_start (EV_A_ &sigev); |
971 | ev_io_start (EV_A_ &pipeev); |
845 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
972 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
973 | } |
|
|
974 | } |
|
|
975 | |
|
|
976 | void inline_size |
|
|
977 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
978 | { |
|
|
979 | if (!*flag) |
|
|
980 | { |
|
|
981 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
982 | |
|
|
983 | *flag = 1; |
|
|
984 | |
|
|
985 | #if EV_USE_EVENTFD |
|
|
986 | if (evfd >= 0) |
|
|
987 | { |
|
|
988 | uint64_t counter = 1; |
|
|
989 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
990 | } |
|
|
991 | else |
|
|
992 | #endif |
|
|
993 | write (evpipe [1], &old_errno, 1); |
|
|
994 | |
|
|
995 | errno = old_errno; |
|
|
996 | } |
|
|
997 | } |
|
|
998 | |
|
|
999 | static void |
|
|
1000 | pipecb (EV_P_ ev_io *iow, int revents) |
|
|
1001 | { |
|
|
1002 | #if EV_USE_EVENTFD |
|
|
1003 | if (evfd >= 0) |
|
|
1004 | { |
|
|
1005 | uint64_t counter; |
|
|
1006 | read (evfd, &counter, sizeof (uint64_t)); |
|
|
1007 | } |
|
|
1008 | else |
|
|
1009 | #endif |
|
|
1010 | { |
|
|
1011 | char dummy; |
|
|
1012 | read (evpipe [0], &dummy, 1); |
|
|
1013 | } |
|
|
1014 | |
|
|
1015 | if (gotsig && ev_is_default_loop (EV_A)) |
|
|
1016 | { |
|
|
1017 | int signum; |
|
|
1018 | gotsig = 0; |
|
|
1019 | |
|
|
1020 | for (signum = signalmax; signum--; ) |
|
|
1021 | if (signals [signum].gotsig) |
|
|
1022 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
1023 | } |
|
|
1024 | |
|
|
1025 | #if EV_ASYNC_ENABLE |
|
|
1026 | if (gotasync) |
|
|
1027 | { |
|
|
1028 | int i; |
|
|
1029 | gotasync = 0; |
|
|
1030 | |
|
|
1031 | for (i = asynccnt; i--; ) |
|
|
1032 | if (asyncs [i]->sent) |
|
|
1033 | { |
|
|
1034 | asyncs [i]->sent = 0; |
|
|
1035 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
|
|
1036 | } |
|
|
1037 | } |
|
|
1038 | #endif |
846 | } |
1039 | } |
847 | |
1040 | |
848 | /*****************************************************************************/ |
1041 | /*****************************************************************************/ |
849 | |
1042 | |
|
|
1043 | static void |
|
|
1044 | ev_sighandler (int signum) |
|
|
1045 | { |
|
|
1046 | #if EV_MULTIPLICITY |
|
|
1047 | struct ev_loop *loop = &default_loop_struct; |
|
|
1048 | #endif |
|
|
1049 | |
|
|
1050 | #if _WIN32 |
|
|
1051 | signal (signum, ev_sighandler); |
|
|
1052 | #endif |
|
|
1053 | |
|
|
1054 | signals [signum - 1].gotsig = 1; |
|
|
1055 | evpipe_write (EV_A_ &gotsig); |
|
|
1056 | } |
|
|
1057 | |
|
|
1058 | void noinline |
|
|
1059 | ev_feed_signal_event (EV_P_ int signum) |
|
|
1060 | { |
|
|
1061 | WL w; |
|
|
1062 | |
|
|
1063 | #if EV_MULTIPLICITY |
|
|
1064 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1065 | #endif |
|
|
1066 | |
|
|
1067 | --signum; |
|
|
1068 | |
|
|
1069 | if (signum < 0 || signum >= signalmax) |
|
|
1070 | return; |
|
|
1071 | |
|
|
1072 | signals [signum].gotsig = 0; |
|
|
1073 | |
|
|
1074 | for (w = signals [signum].head; w; w = w->next) |
|
|
1075 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
1076 | } |
|
|
1077 | |
|
|
1078 | /*****************************************************************************/ |
|
|
1079 | |
850 | static WL childs [EV_PID_HASHSIZE]; |
1080 | static WL childs [EV_PID_HASHSIZE]; |
851 | |
1081 | |
852 | #ifndef _WIN32 |
1082 | #ifndef _WIN32 |
853 | |
1083 | |
854 | static ev_signal childev; |
1084 | static ev_signal childev; |
855 | |
1085 | |
|
|
1086 | #ifndef WIFCONTINUED |
|
|
1087 | # define WIFCONTINUED(status) 0 |
|
|
1088 | #endif |
|
|
1089 | |
856 | void inline_speed |
1090 | void inline_speed |
857 | child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) |
1091 | child_reap (EV_P_ int chain, int pid, int status) |
858 | { |
1092 | { |
859 | ev_child *w; |
1093 | ev_child *w; |
|
|
1094 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
860 | |
1095 | |
861 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1096 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1097 | { |
862 | if (w->pid == pid || !w->pid) |
1098 | if ((w->pid == pid || !w->pid) |
|
|
1099 | && (!traced || (w->flags & 1))) |
863 | { |
1100 | { |
864 | ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */ |
1101 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
865 | w->rpid = pid; |
1102 | w->rpid = pid; |
866 | w->rstatus = status; |
1103 | w->rstatus = status; |
867 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
1104 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
868 | } |
1105 | } |
|
|
1106 | } |
869 | } |
1107 | } |
870 | |
1108 | |
871 | #ifndef WCONTINUED |
1109 | #ifndef WCONTINUED |
872 | # define WCONTINUED 0 |
1110 | # define WCONTINUED 0 |
873 | #endif |
1111 | #endif |
… | |
… | |
882 | if (!WCONTINUED |
1120 | if (!WCONTINUED |
883 | || errno != EINVAL |
1121 | || errno != EINVAL |
884 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
1122 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
885 | return; |
1123 | return; |
886 | |
1124 | |
887 | /* make sure we are called again until all childs have been reaped */ |
1125 | /* make sure we are called again until all children have been reaped */ |
888 | /* we need to do it this way so that the callback gets called before we continue */ |
1126 | /* we need to do it this way so that the callback gets called before we continue */ |
889 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1127 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
890 | |
1128 | |
891 | child_reap (EV_A_ sw, pid, pid, status); |
1129 | child_reap (EV_A_ pid, pid, status); |
892 | if (EV_PID_HASHSIZE > 1) |
1130 | if (EV_PID_HASHSIZE > 1) |
893 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1131 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
894 | } |
1132 | } |
895 | |
1133 | |
896 | #endif |
1134 | #endif |
897 | |
1135 | |
898 | /*****************************************************************************/ |
1136 | /*****************************************************************************/ |
… | |
… | |
970 | } |
1208 | } |
971 | |
1209 | |
972 | unsigned int |
1210 | unsigned int |
973 | ev_embeddable_backends (void) |
1211 | ev_embeddable_backends (void) |
974 | { |
1212 | { |
|
|
1213 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
|
|
1214 | |
975 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1215 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
976 | return EVBACKEND_KQUEUE |
1216 | /* please fix it and tell me how to detect the fix */ |
977 | | EVBACKEND_PORT; |
1217 | flags &= ~EVBACKEND_EPOLL; |
|
|
1218 | |
|
|
1219 | return flags; |
978 | } |
1220 | } |
979 | |
1221 | |
980 | unsigned int |
1222 | unsigned int |
981 | ev_backend (EV_P) |
1223 | ev_backend (EV_P) |
982 | { |
1224 | { |
… | |
… | |
1012 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1254 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1013 | have_monotonic = 1; |
1255 | have_monotonic = 1; |
1014 | } |
1256 | } |
1015 | #endif |
1257 | #endif |
1016 | |
1258 | |
1017 | ev_rt_now = ev_time (); |
1259 | ev_rt_now = ev_time (); |
1018 | mn_now = get_clock (); |
1260 | mn_now = get_clock (); |
1019 | now_floor = mn_now; |
1261 | now_floor = mn_now; |
1020 | rtmn_diff = ev_rt_now - mn_now; |
1262 | rtmn_diff = ev_rt_now - mn_now; |
1021 | |
1263 | |
1022 | io_blocktime = 0.; |
1264 | io_blocktime = 0.; |
1023 | timeout_blocktime = 0.; |
1265 | timeout_blocktime = 0.; |
|
|
1266 | backend = 0; |
|
|
1267 | backend_fd = -1; |
|
|
1268 | gotasync = 0; |
|
|
1269 | #if EV_USE_INOTIFY |
|
|
1270 | fs_fd = -2; |
|
|
1271 | #endif |
1024 | |
1272 | |
1025 | /* pid check not overridable via env */ |
1273 | /* pid check not overridable via env */ |
1026 | #ifndef _WIN32 |
1274 | #ifndef _WIN32 |
1027 | if (flags & EVFLAG_FORKCHECK) |
1275 | if (flags & EVFLAG_FORKCHECK) |
1028 | curpid = getpid (); |
1276 | curpid = getpid (); |
… | |
… | |
1031 | if (!(flags & EVFLAG_NOENV) |
1279 | if (!(flags & EVFLAG_NOENV) |
1032 | && !enable_secure () |
1280 | && !enable_secure () |
1033 | && getenv ("LIBEV_FLAGS")) |
1281 | && getenv ("LIBEV_FLAGS")) |
1034 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1282 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1035 | |
1283 | |
1036 | if (!(flags & 0x0000ffffUL)) |
1284 | if (!(flags & 0x0000ffffU)) |
1037 | flags |= ev_recommended_backends (); |
1285 | flags |= ev_recommended_backends (); |
1038 | |
|
|
1039 | backend = 0; |
|
|
1040 | backend_fd = -1; |
|
|
1041 | #if EV_USE_INOTIFY |
|
|
1042 | fs_fd = -2; |
|
|
1043 | #endif |
|
|
1044 | |
1286 | |
1045 | #if EV_USE_PORT |
1287 | #if EV_USE_PORT |
1046 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1288 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1047 | #endif |
1289 | #endif |
1048 | #if EV_USE_KQUEUE |
1290 | #if EV_USE_KQUEUE |
… | |
… | |
1056 | #endif |
1298 | #endif |
1057 | #if EV_USE_SELECT |
1299 | #if EV_USE_SELECT |
1058 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1300 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1059 | #endif |
1301 | #endif |
1060 | |
1302 | |
1061 | ev_init (&sigev, sigcb); |
1303 | ev_init (&pipeev, pipecb); |
1062 | ev_set_priority (&sigev, EV_MAXPRI); |
1304 | ev_set_priority (&pipeev, EV_MAXPRI); |
1063 | } |
1305 | } |
1064 | } |
1306 | } |
1065 | |
1307 | |
1066 | static void noinline |
1308 | static void noinline |
1067 | loop_destroy (EV_P) |
1309 | loop_destroy (EV_P) |
1068 | { |
1310 | { |
1069 | int i; |
1311 | int i; |
|
|
1312 | |
|
|
1313 | if (ev_is_active (&pipeev)) |
|
|
1314 | { |
|
|
1315 | ev_ref (EV_A); /* signal watcher */ |
|
|
1316 | ev_io_stop (EV_A_ &pipeev); |
|
|
1317 | |
|
|
1318 | #if EV_USE_EVENTFD |
|
|
1319 | if (evfd >= 0) |
|
|
1320 | close (evfd); |
|
|
1321 | #endif |
|
|
1322 | |
|
|
1323 | if (evpipe [0] >= 0) |
|
|
1324 | { |
|
|
1325 | close (evpipe [0]); |
|
|
1326 | close (evpipe [1]); |
|
|
1327 | } |
|
|
1328 | } |
1070 | |
1329 | |
1071 | #if EV_USE_INOTIFY |
1330 | #if EV_USE_INOTIFY |
1072 | if (fs_fd >= 0) |
1331 | if (fs_fd >= 0) |
1073 | close (fs_fd); |
1332 | close (fs_fd); |
1074 | #endif |
1333 | #endif |
… | |
… | |
1111 | #if EV_FORK_ENABLE |
1370 | #if EV_FORK_ENABLE |
1112 | array_free (fork, EMPTY); |
1371 | array_free (fork, EMPTY); |
1113 | #endif |
1372 | #endif |
1114 | array_free (prepare, EMPTY); |
1373 | array_free (prepare, EMPTY); |
1115 | array_free (check, EMPTY); |
1374 | array_free (check, EMPTY); |
|
|
1375 | #if EV_ASYNC_ENABLE |
|
|
1376 | array_free (async, EMPTY); |
|
|
1377 | #endif |
1116 | |
1378 | |
1117 | backend = 0; |
1379 | backend = 0; |
1118 | } |
1380 | } |
1119 | |
1381 | |
|
|
1382 | #if EV_USE_INOTIFY |
1120 | void inline_size infy_fork (EV_P); |
1383 | void inline_size infy_fork (EV_P); |
|
|
1384 | #endif |
1121 | |
1385 | |
1122 | void inline_size |
1386 | void inline_size |
1123 | loop_fork (EV_P) |
1387 | loop_fork (EV_P) |
1124 | { |
1388 | { |
1125 | #if EV_USE_PORT |
1389 | #if EV_USE_PORT |
… | |
… | |
1133 | #endif |
1397 | #endif |
1134 | #if EV_USE_INOTIFY |
1398 | #if EV_USE_INOTIFY |
1135 | infy_fork (EV_A); |
1399 | infy_fork (EV_A); |
1136 | #endif |
1400 | #endif |
1137 | |
1401 | |
1138 | if (ev_is_active (&sigev)) |
1402 | if (ev_is_active (&pipeev)) |
1139 | { |
1403 | { |
1140 | /* default loop */ |
1404 | /* this "locks" the handlers against writing to the pipe */ |
|
|
1405 | /* while we modify the fd vars */ |
|
|
1406 | gotsig = 1; |
|
|
1407 | #if EV_ASYNC_ENABLE |
|
|
1408 | gotasync = 1; |
|
|
1409 | #endif |
1141 | |
1410 | |
1142 | ev_ref (EV_A); |
1411 | ev_ref (EV_A); |
1143 | ev_io_stop (EV_A_ &sigev); |
1412 | ev_io_stop (EV_A_ &pipeev); |
|
|
1413 | |
|
|
1414 | #if EV_USE_EVENTFD |
|
|
1415 | if (evfd >= 0) |
|
|
1416 | close (evfd); |
|
|
1417 | #endif |
|
|
1418 | |
|
|
1419 | if (evpipe [0] >= 0) |
|
|
1420 | { |
1144 | close (sigpipe [0]); |
1421 | close (evpipe [0]); |
1145 | close (sigpipe [1]); |
1422 | close (evpipe [1]); |
|
|
1423 | } |
1146 | |
1424 | |
1147 | while (pipe (sigpipe)) |
|
|
1148 | syserr ("(libev) error creating pipe"); |
|
|
1149 | |
|
|
1150 | siginit (EV_A); |
1425 | evpipe_init (EV_A); |
|
|
1426 | /* now iterate over everything, in case we missed something */ |
|
|
1427 | pipecb (EV_A_ &pipeev, EV_READ); |
1151 | } |
1428 | } |
1152 | |
1429 | |
1153 | postfork = 0; |
1430 | postfork = 0; |
1154 | } |
1431 | } |
1155 | |
1432 | |
… | |
… | |
1177 | } |
1454 | } |
1178 | |
1455 | |
1179 | void |
1456 | void |
1180 | ev_loop_fork (EV_P) |
1457 | ev_loop_fork (EV_P) |
1181 | { |
1458 | { |
1182 | postfork = 1; |
1459 | postfork = 1; /* must be in line with ev_default_fork */ |
1183 | } |
1460 | } |
1184 | |
|
|
1185 | #endif |
1461 | #endif |
1186 | |
1462 | |
1187 | #if EV_MULTIPLICITY |
1463 | #if EV_MULTIPLICITY |
1188 | struct ev_loop * |
1464 | struct ev_loop * |
1189 | ev_default_loop_init (unsigned int flags) |
1465 | ev_default_loop_init (unsigned int flags) |
1190 | #else |
1466 | #else |
1191 | int |
1467 | int |
1192 | ev_default_loop (unsigned int flags) |
1468 | ev_default_loop (unsigned int flags) |
1193 | #endif |
1469 | #endif |
1194 | { |
1470 | { |
1195 | if (sigpipe [0] == sigpipe [1]) |
|
|
1196 | if (pipe (sigpipe)) |
|
|
1197 | return 0; |
|
|
1198 | |
|
|
1199 | if (!ev_default_loop_ptr) |
1471 | if (!ev_default_loop_ptr) |
1200 | { |
1472 | { |
1201 | #if EV_MULTIPLICITY |
1473 | #if EV_MULTIPLICITY |
1202 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1474 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1203 | #else |
1475 | #else |
… | |
… | |
1206 | |
1478 | |
1207 | loop_init (EV_A_ flags); |
1479 | loop_init (EV_A_ flags); |
1208 | |
1480 | |
1209 | if (ev_backend (EV_A)) |
1481 | if (ev_backend (EV_A)) |
1210 | { |
1482 | { |
1211 | siginit (EV_A); |
|
|
1212 | |
|
|
1213 | #ifndef _WIN32 |
1483 | #ifndef _WIN32 |
1214 | ev_signal_init (&childev, childcb, SIGCHLD); |
1484 | ev_signal_init (&childev, childcb, SIGCHLD); |
1215 | ev_set_priority (&childev, EV_MAXPRI); |
1485 | ev_set_priority (&childev, EV_MAXPRI); |
1216 | ev_signal_start (EV_A_ &childev); |
1486 | ev_signal_start (EV_A_ &childev); |
1217 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1487 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
… | |
… | |
1234 | #ifndef _WIN32 |
1504 | #ifndef _WIN32 |
1235 | ev_ref (EV_A); /* child watcher */ |
1505 | ev_ref (EV_A); /* child watcher */ |
1236 | ev_signal_stop (EV_A_ &childev); |
1506 | ev_signal_stop (EV_A_ &childev); |
1237 | #endif |
1507 | #endif |
1238 | |
1508 | |
1239 | ev_ref (EV_A); /* signal watcher */ |
|
|
1240 | ev_io_stop (EV_A_ &sigev); |
|
|
1241 | |
|
|
1242 | close (sigpipe [0]); sigpipe [0] = 0; |
|
|
1243 | close (sigpipe [1]); sigpipe [1] = 0; |
|
|
1244 | |
|
|
1245 | loop_destroy (EV_A); |
1509 | loop_destroy (EV_A); |
1246 | } |
1510 | } |
1247 | |
1511 | |
1248 | void |
1512 | void |
1249 | ev_default_fork (void) |
1513 | ev_default_fork (void) |
… | |
… | |
1251 | #if EV_MULTIPLICITY |
1515 | #if EV_MULTIPLICITY |
1252 | struct ev_loop *loop = ev_default_loop_ptr; |
1516 | struct ev_loop *loop = ev_default_loop_ptr; |
1253 | #endif |
1517 | #endif |
1254 | |
1518 | |
1255 | if (backend) |
1519 | if (backend) |
1256 | postfork = 1; |
1520 | postfork = 1; /* must be in line with ev_loop_fork */ |
1257 | } |
1521 | } |
1258 | |
1522 | |
1259 | /*****************************************************************************/ |
1523 | /*****************************************************************************/ |
1260 | |
1524 | |
1261 | void |
1525 | void |
… | |
… | |
1281 | p->w->pending = 0; |
1545 | p->w->pending = 0; |
1282 | EV_CB_INVOKE (p->w, p->events); |
1546 | EV_CB_INVOKE (p->w, p->events); |
1283 | } |
1547 | } |
1284 | } |
1548 | } |
1285 | } |
1549 | } |
1286 | |
|
|
1287 | void inline_size |
|
|
1288 | timers_reify (EV_P) |
|
|
1289 | { |
|
|
1290 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
|
|
1291 | { |
|
|
1292 | ev_timer *w = (ev_timer *)timers [0]; |
|
|
1293 | |
|
|
1294 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1295 | |
|
|
1296 | /* first reschedule or stop timer */ |
|
|
1297 | if (w->repeat) |
|
|
1298 | { |
|
|
1299 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1300 | |
|
|
1301 | ((WT)w)->at += w->repeat; |
|
|
1302 | if (((WT)w)->at < mn_now) |
|
|
1303 | ((WT)w)->at = mn_now; |
|
|
1304 | |
|
|
1305 | downheap (timers, timercnt, 0); |
|
|
1306 | } |
|
|
1307 | else |
|
|
1308 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1309 | |
|
|
1310 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
|
|
1311 | } |
|
|
1312 | } |
|
|
1313 | |
|
|
1314 | #if EV_PERIODIC_ENABLE |
|
|
1315 | void inline_size |
|
|
1316 | periodics_reify (EV_P) |
|
|
1317 | { |
|
|
1318 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
|
|
1319 | { |
|
|
1320 | ev_periodic *w = (ev_periodic *)periodics [0]; |
|
|
1321 | |
|
|
1322 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
1323 | |
|
|
1324 | /* first reschedule or stop timer */ |
|
|
1325 | if (w->reschedule_cb) |
|
|
1326 | { |
|
|
1327 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); |
|
|
1328 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
|
|
1329 | downheap (periodics, periodiccnt, 0); |
|
|
1330 | } |
|
|
1331 | else if (w->interval) |
|
|
1332 | { |
|
|
1333 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1334 | if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval; |
|
|
1335 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
|
|
1336 | downheap (periodics, periodiccnt, 0); |
|
|
1337 | } |
|
|
1338 | else |
|
|
1339 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1340 | |
|
|
1341 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
|
|
1342 | } |
|
|
1343 | } |
|
|
1344 | |
|
|
1345 | static void noinline |
|
|
1346 | periodics_reschedule (EV_P) |
|
|
1347 | { |
|
|
1348 | int i; |
|
|
1349 | |
|
|
1350 | /* adjust periodics after time jump */ |
|
|
1351 | for (i = 0; i < periodiccnt; ++i) |
|
|
1352 | { |
|
|
1353 | ev_periodic *w = (ev_periodic *)periodics [i]; |
|
|
1354 | |
|
|
1355 | if (w->reschedule_cb) |
|
|
1356 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
|
|
1357 | else if (w->interval) |
|
|
1358 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1359 | } |
|
|
1360 | |
|
|
1361 | /* now rebuild the heap */ |
|
|
1362 | for (i = periodiccnt >> 1; i--; ) |
|
|
1363 | downheap (periodics, periodiccnt, i); |
|
|
1364 | } |
|
|
1365 | #endif |
|
|
1366 | |
1550 | |
1367 | #if EV_IDLE_ENABLE |
1551 | #if EV_IDLE_ENABLE |
1368 | void inline_size |
1552 | void inline_size |
1369 | idle_reify (EV_P) |
1553 | idle_reify (EV_P) |
1370 | { |
1554 | { |
… | |
… | |
1382 | queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE); |
1566 | queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE); |
1383 | break; |
1567 | break; |
1384 | } |
1568 | } |
1385 | } |
1569 | } |
1386 | } |
1570 | } |
|
|
1571 | } |
|
|
1572 | #endif |
|
|
1573 | |
|
|
1574 | void inline_size |
|
|
1575 | timers_reify (EV_P) |
|
|
1576 | { |
|
|
1577 | while (timercnt && ev_at (timers [HEAP0]) <= mn_now) |
|
|
1578 | { |
|
|
1579 | ev_timer *w = (ev_timer *)timers [HEAP0]; |
|
|
1580 | |
|
|
1581 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1582 | |
|
|
1583 | /* first reschedule or stop timer */ |
|
|
1584 | if (w->repeat) |
|
|
1585 | { |
|
|
1586 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1587 | |
|
|
1588 | ev_at (w) += w->repeat; |
|
|
1589 | if (ev_at (w) < mn_now) |
|
|
1590 | ev_at (w) = mn_now; |
|
|
1591 | |
|
|
1592 | downheap (timers, timercnt, HEAP0); |
|
|
1593 | } |
|
|
1594 | else |
|
|
1595 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1596 | |
|
|
1597 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
|
|
1598 | } |
|
|
1599 | } |
|
|
1600 | |
|
|
1601 | #if EV_PERIODIC_ENABLE |
|
|
1602 | void inline_size |
|
|
1603 | periodics_reify (EV_P) |
|
|
1604 | { |
|
|
1605 | while (periodiccnt && ev_at (periodics [HEAP0]) <= ev_rt_now) |
|
|
1606 | { |
|
|
1607 | ev_periodic *w = (ev_periodic *)periodics [HEAP0]; |
|
|
1608 | |
|
|
1609 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
1610 | |
|
|
1611 | /* first reschedule or stop timer */ |
|
|
1612 | if (w->reschedule_cb) |
|
|
1613 | { |
|
|
1614 | ev_at (w) = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); |
|
|
1615 | assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) > ev_rt_now)); |
|
|
1616 | downheap (periodics, periodiccnt, 1); |
|
|
1617 | } |
|
|
1618 | else if (w->interval) |
|
|
1619 | { |
|
|
1620 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1621 | if (ev_at (w) - ev_rt_now <= TIME_EPSILON) ev_at (w) += w->interval; |
|
|
1622 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ev_at (w) > ev_rt_now)); |
|
|
1623 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1624 | } |
|
|
1625 | else |
|
|
1626 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1627 | |
|
|
1628 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
|
|
1629 | } |
|
|
1630 | } |
|
|
1631 | |
|
|
1632 | static void noinline |
|
|
1633 | periodics_reschedule (EV_P) |
|
|
1634 | { |
|
|
1635 | int i; |
|
|
1636 | |
|
|
1637 | /* adjust periodics after time jump */ |
|
|
1638 | for (i = 1; i <= periodiccnt; ++i) |
|
|
1639 | { |
|
|
1640 | ev_periodic *w = (ev_periodic *)periodics [i]; |
|
|
1641 | |
|
|
1642 | if (w->reschedule_cb) |
|
|
1643 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
1644 | else if (w->interval) |
|
|
1645 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1646 | } |
|
|
1647 | |
|
|
1648 | /* now rebuild the heap */ |
|
|
1649 | for (i = periodiccnt >> 1; --i; ) |
|
|
1650 | downheap (periodics, periodiccnt, i + HEAP0); |
1387 | } |
1651 | } |
1388 | #endif |
1652 | #endif |
1389 | |
1653 | |
1390 | void inline_speed |
1654 | void inline_speed |
1391 | time_update (EV_P_ ev_tstamp max_block) |
1655 | time_update (EV_P_ ev_tstamp max_block) |
… | |
… | |
1420 | */ |
1684 | */ |
1421 | for (i = 4; --i; ) |
1685 | for (i = 4; --i; ) |
1422 | { |
1686 | { |
1423 | rtmn_diff = ev_rt_now - mn_now; |
1687 | rtmn_diff = ev_rt_now - mn_now; |
1424 | |
1688 | |
1425 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1689 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
1426 | return; /* all is well */ |
1690 | return; /* all is well */ |
1427 | |
1691 | |
1428 | ev_rt_now = ev_time (); |
1692 | ev_rt_now = ev_time (); |
1429 | mn_now = get_clock (); |
1693 | mn_now = get_clock (); |
1430 | now_floor = mn_now; |
1694 | now_floor = mn_now; |
… | |
… | |
1445 | { |
1709 | { |
1446 | #if EV_PERIODIC_ENABLE |
1710 | #if EV_PERIODIC_ENABLE |
1447 | periodics_reschedule (EV_A); |
1711 | periodics_reschedule (EV_A); |
1448 | #endif |
1712 | #endif |
1449 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
1713 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
1450 | for (i = 0; i < timercnt; ++i) |
1714 | for (i = 1; i <= timercnt; ++i) |
1451 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
1715 | ev_at (timers [i]) += ev_rt_now - mn_now; |
1452 | } |
1716 | } |
1453 | |
1717 | |
1454 | mn_now = ev_rt_now; |
1718 | mn_now = ev_rt_now; |
1455 | } |
1719 | } |
1456 | } |
1720 | } |
… | |
… | |
1470 | static int loop_done; |
1734 | static int loop_done; |
1471 | |
1735 | |
1472 | void |
1736 | void |
1473 | ev_loop (EV_P_ int flags) |
1737 | ev_loop (EV_P_ int flags) |
1474 | { |
1738 | { |
1475 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) |
1739 | loop_done = EVUNLOOP_CANCEL; |
1476 | ? EVUNLOOP_ONE |
|
|
1477 | : EVUNLOOP_CANCEL; |
|
|
1478 | |
1740 | |
1479 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
1741 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
1480 | |
1742 | |
1481 | do |
1743 | do |
1482 | { |
1744 | { |
… | |
… | |
1528 | |
1790 | |
1529 | waittime = MAX_BLOCKTIME; |
1791 | waittime = MAX_BLOCKTIME; |
1530 | |
1792 | |
1531 | if (timercnt) |
1793 | if (timercnt) |
1532 | { |
1794 | { |
1533 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
1795 | ev_tstamp to = ev_at (timers [HEAP0]) - mn_now + backend_fudge; |
1534 | if (waittime > to) waittime = to; |
1796 | if (waittime > to) waittime = to; |
1535 | } |
1797 | } |
1536 | |
1798 | |
1537 | #if EV_PERIODIC_ENABLE |
1799 | #if EV_PERIODIC_ENABLE |
1538 | if (periodiccnt) |
1800 | if (periodiccnt) |
1539 | { |
1801 | { |
1540 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
1802 | ev_tstamp to = ev_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
1541 | if (waittime > to) waittime = to; |
1803 | if (waittime > to) waittime = to; |
1542 | } |
1804 | } |
1543 | #endif |
1805 | #endif |
1544 | |
1806 | |
1545 | if (expect_false (waittime < timeout_blocktime)) |
1807 | if (expect_false (waittime < timeout_blocktime)) |
… | |
… | |
1578 | /* queue check watchers, to be executed first */ |
1840 | /* queue check watchers, to be executed first */ |
1579 | if (expect_false (checkcnt)) |
1841 | if (expect_false (checkcnt)) |
1580 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1842 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1581 | |
1843 | |
1582 | call_pending (EV_A); |
1844 | call_pending (EV_A); |
1583 | |
|
|
1584 | } |
1845 | } |
1585 | while (expect_true (activecnt && !loop_done)); |
1846 | while (expect_true ( |
|
|
1847 | activecnt |
|
|
1848 | && !loop_done |
|
|
1849 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
|
|
1850 | )); |
1586 | |
1851 | |
1587 | if (loop_done == EVUNLOOP_ONE) |
1852 | if (loop_done == EVUNLOOP_ONE) |
1588 | loop_done = EVUNLOOP_CANCEL; |
1853 | loop_done = EVUNLOOP_CANCEL; |
1589 | } |
1854 | } |
1590 | |
1855 | |
… | |
… | |
1708 | ev_timer_start (EV_P_ ev_timer *w) |
1973 | ev_timer_start (EV_P_ ev_timer *w) |
1709 | { |
1974 | { |
1710 | if (expect_false (ev_is_active (w))) |
1975 | if (expect_false (ev_is_active (w))) |
1711 | return; |
1976 | return; |
1712 | |
1977 | |
1713 | ((WT)w)->at += mn_now; |
1978 | ev_at (w) += mn_now; |
1714 | |
1979 | |
1715 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1980 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1716 | |
1981 | |
1717 | ev_start (EV_A_ (W)w, ++timercnt); |
1982 | ev_start (EV_A_ (W)w, ++timercnt + HEAP0 - 1); |
1718 | array_needsize (WT, timers, timermax, timercnt, EMPTY2); |
1983 | array_needsize (WT, timers, timermax, timercnt + HEAP0, EMPTY2); |
1719 | timers [timercnt - 1] = (WT)w; |
1984 | timers [ev_active (w)] = (WT)w; |
1720 | upheap (timers, timercnt - 1); |
1985 | upheap (timers, ev_active (w)); |
1721 | |
1986 | |
1722 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
1987 | /*assert (("internal timer heap corruption", timers [ev_active (w)] == w));*/ |
1723 | } |
1988 | } |
1724 | |
1989 | |
1725 | void noinline |
1990 | void noinline |
1726 | ev_timer_stop (EV_P_ ev_timer *w) |
1991 | ev_timer_stop (EV_P_ ev_timer *w) |
1727 | { |
1992 | { |
1728 | clear_pending (EV_A_ (W)w); |
1993 | clear_pending (EV_A_ (W)w); |
1729 | if (expect_false (!ev_is_active (w))) |
1994 | if (expect_false (!ev_is_active (w))) |
1730 | return; |
1995 | return; |
1731 | |
1996 | |
1732 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w)); |
|
|
1733 | |
|
|
1734 | { |
1997 | { |
1735 | int active = ((W)w)->active; |
1998 | int active = ev_active (w); |
1736 | |
1999 | |
|
|
2000 | assert (("internal timer heap corruption", timers [active] == (WT)w)); |
|
|
2001 | |
1737 | if (expect_true (--active < --timercnt)) |
2002 | if (expect_true (active < timercnt + HEAP0 - 1)) |
1738 | { |
2003 | { |
1739 | timers [active] = timers [timercnt]; |
2004 | timers [active] = timers [timercnt + HEAP0 - 1]; |
1740 | adjustheap (timers, timercnt, active); |
2005 | adjustheap (timers, timercnt, active); |
1741 | } |
2006 | } |
|
|
2007 | |
|
|
2008 | --timercnt; |
1742 | } |
2009 | } |
1743 | |
2010 | |
1744 | ((WT)w)->at -= mn_now; |
2011 | ev_at (w) -= mn_now; |
1745 | |
2012 | |
1746 | ev_stop (EV_A_ (W)w); |
2013 | ev_stop (EV_A_ (W)w); |
1747 | } |
2014 | } |
1748 | |
2015 | |
1749 | void noinline |
2016 | void noinline |
… | |
… | |
1751 | { |
2018 | { |
1752 | if (ev_is_active (w)) |
2019 | if (ev_is_active (w)) |
1753 | { |
2020 | { |
1754 | if (w->repeat) |
2021 | if (w->repeat) |
1755 | { |
2022 | { |
1756 | ((WT)w)->at = mn_now + w->repeat; |
2023 | ev_at (w) = mn_now + w->repeat; |
1757 | adjustheap (timers, timercnt, ((W)w)->active - 1); |
2024 | adjustheap (timers, timercnt, ev_active (w)); |
1758 | } |
2025 | } |
1759 | else |
2026 | else |
1760 | ev_timer_stop (EV_A_ w); |
2027 | ev_timer_stop (EV_A_ w); |
1761 | } |
2028 | } |
1762 | else if (w->repeat) |
2029 | else if (w->repeat) |
1763 | { |
2030 | { |
1764 | w->at = w->repeat; |
2031 | ev_at (w) = w->repeat; |
1765 | ev_timer_start (EV_A_ w); |
2032 | ev_timer_start (EV_A_ w); |
1766 | } |
2033 | } |
1767 | } |
2034 | } |
1768 | |
2035 | |
1769 | #if EV_PERIODIC_ENABLE |
2036 | #if EV_PERIODIC_ENABLE |
… | |
… | |
1772 | { |
2039 | { |
1773 | if (expect_false (ev_is_active (w))) |
2040 | if (expect_false (ev_is_active (w))) |
1774 | return; |
2041 | return; |
1775 | |
2042 | |
1776 | if (w->reschedule_cb) |
2043 | if (w->reschedule_cb) |
1777 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
2044 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1778 | else if (w->interval) |
2045 | else if (w->interval) |
1779 | { |
2046 | { |
1780 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2047 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1781 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2048 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1782 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2049 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1783 | } |
2050 | } |
1784 | else |
2051 | else |
1785 | ((WT)w)->at = w->offset; |
2052 | ev_at (w) = w->offset; |
1786 | |
2053 | |
1787 | ev_start (EV_A_ (W)w, ++periodiccnt); |
2054 | ev_start (EV_A_ (W)w, ++periodiccnt + HEAP0 - 1); |
1788 | array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2); |
2055 | array_needsize (WT, periodics, periodicmax, periodiccnt + HEAP0, EMPTY2); |
1789 | periodics [periodiccnt - 1] = (WT)w; |
2056 | periodics [ev_active (w)] = (WT)w; |
1790 | upheap (periodics, periodiccnt - 1); |
2057 | upheap (periodics, ev_active (w)); |
1791 | |
2058 | |
1792 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
2059 | /*assert (("internal periodic heap corruption", periodics [ev_active (w)] == w));*/ |
1793 | } |
2060 | } |
1794 | |
2061 | |
1795 | void noinline |
2062 | void noinline |
1796 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2063 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1797 | { |
2064 | { |
1798 | clear_pending (EV_A_ (W)w); |
2065 | clear_pending (EV_A_ (W)w); |
1799 | if (expect_false (!ev_is_active (w))) |
2066 | if (expect_false (!ev_is_active (w))) |
1800 | return; |
2067 | return; |
1801 | |
2068 | |
1802 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w)); |
|
|
1803 | |
|
|
1804 | { |
2069 | { |
1805 | int active = ((W)w)->active; |
2070 | int active = ev_active (w); |
1806 | |
2071 | |
|
|
2072 | assert (("internal periodic heap corruption", periodics [active] == (WT)w)); |
|
|
2073 | |
1807 | if (expect_true (--active < --periodiccnt)) |
2074 | if (expect_true (active < periodiccnt + HEAP0 - 1)) |
1808 | { |
2075 | { |
1809 | periodics [active] = periodics [periodiccnt]; |
2076 | periodics [active] = periodics [periodiccnt + HEAP0 - 1]; |
1810 | adjustheap (periodics, periodiccnt, active); |
2077 | adjustheap (periodics, periodiccnt, active); |
1811 | } |
2078 | } |
|
|
2079 | |
|
|
2080 | --periodiccnt; |
1812 | } |
2081 | } |
1813 | |
2082 | |
1814 | ev_stop (EV_A_ (W)w); |
2083 | ev_stop (EV_A_ (W)w); |
1815 | } |
2084 | } |
1816 | |
2085 | |
… | |
… | |
1835 | #endif |
2104 | #endif |
1836 | if (expect_false (ev_is_active (w))) |
2105 | if (expect_false (ev_is_active (w))) |
1837 | return; |
2106 | return; |
1838 | |
2107 | |
1839 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2108 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
|
|
2109 | |
|
|
2110 | evpipe_init (EV_A); |
1840 | |
2111 | |
1841 | { |
2112 | { |
1842 | #ifndef _WIN32 |
2113 | #ifndef _WIN32 |
1843 | sigset_t full, prev; |
2114 | sigset_t full, prev; |
1844 | sigfillset (&full); |
2115 | sigfillset (&full); |
… | |
… | |
1856 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2127 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
1857 | |
2128 | |
1858 | if (!((WL)w)->next) |
2129 | if (!((WL)w)->next) |
1859 | { |
2130 | { |
1860 | #if _WIN32 |
2131 | #if _WIN32 |
1861 | signal (w->signum, sighandler); |
2132 | signal (w->signum, ev_sighandler); |
1862 | #else |
2133 | #else |
1863 | struct sigaction sa; |
2134 | struct sigaction sa; |
1864 | sa.sa_handler = sighandler; |
2135 | sa.sa_handler = ev_sighandler; |
1865 | sigfillset (&sa.sa_mask); |
2136 | sigfillset (&sa.sa_mask); |
1866 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2137 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1867 | sigaction (w->signum, &sa, 0); |
2138 | sigaction (w->signum, &sa, 0); |
1868 | #endif |
2139 | #endif |
1869 | } |
2140 | } |
… | |
… | |
1930 | if (w->wd < 0) |
2201 | if (w->wd < 0) |
1931 | { |
2202 | { |
1932 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2203 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
1933 | |
2204 | |
1934 | /* monitor some parent directory for speedup hints */ |
2205 | /* monitor some parent directory for speedup hints */ |
|
|
2206 | /* note that exceeding the hardcoded limit is not a correctness issue, */ |
|
|
2207 | /* but an efficiency issue only */ |
1935 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2208 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
1936 | { |
2209 | { |
1937 | char path [4096]; |
2210 | char path [4096]; |
1938 | strcpy (path, w->path); |
2211 | strcpy (path, w->path); |
1939 | |
2212 | |
… | |
… | |
2184 | clear_pending (EV_A_ (W)w); |
2457 | clear_pending (EV_A_ (W)w); |
2185 | if (expect_false (!ev_is_active (w))) |
2458 | if (expect_false (!ev_is_active (w))) |
2186 | return; |
2459 | return; |
2187 | |
2460 | |
2188 | { |
2461 | { |
2189 | int active = ((W)w)->active; |
2462 | int active = ev_active (w); |
2190 | |
2463 | |
2191 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2464 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2192 | ((W)idles [ABSPRI (w)][active - 1])->active = active; |
2465 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
2193 | |
2466 | |
2194 | ev_stop (EV_A_ (W)w); |
2467 | ev_stop (EV_A_ (W)w); |
2195 | --idleall; |
2468 | --idleall; |
2196 | } |
2469 | } |
2197 | } |
2470 | } |
… | |
… | |
2214 | clear_pending (EV_A_ (W)w); |
2487 | clear_pending (EV_A_ (W)w); |
2215 | if (expect_false (!ev_is_active (w))) |
2488 | if (expect_false (!ev_is_active (w))) |
2216 | return; |
2489 | return; |
2217 | |
2490 | |
2218 | { |
2491 | { |
2219 | int active = ((W)w)->active; |
2492 | int active = ev_active (w); |
|
|
2493 | |
2220 | prepares [active - 1] = prepares [--preparecnt]; |
2494 | prepares [active - 1] = prepares [--preparecnt]; |
2221 | ((W)prepares [active - 1])->active = active; |
2495 | ev_active (prepares [active - 1]) = active; |
2222 | } |
2496 | } |
2223 | |
2497 | |
2224 | ev_stop (EV_A_ (W)w); |
2498 | ev_stop (EV_A_ (W)w); |
2225 | } |
2499 | } |
2226 | |
2500 | |
… | |
… | |
2241 | clear_pending (EV_A_ (W)w); |
2515 | clear_pending (EV_A_ (W)w); |
2242 | if (expect_false (!ev_is_active (w))) |
2516 | if (expect_false (!ev_is_active (w))) |
2243 | return; |
2517 | return; |
2244 | |
2518 | |
2245 | { |
2519 | { |
2246 | int active = ((W)w)->active; |
2520 | int active = ev_active (w); |
|
|
2521 | |
2247 | checks [active - 1] = checks [--checkcnt]; |
2522 | checks [active - 1] = checks [--checkcnt]; |
2248 | ((W)checks [active - 1])->active = active; |
2523 | ev_active (checks [active - 1]) = active; |
2249 | } |
2524 | } |
2250 | |
2525 | |
2251 | ev_stop (EV_A_ (W)w); |
2526 | ev_stop (EV_A_ (W)w); |
2252 | } |
2527 | } |
2253 | |
2528 | |
… | |
… | |
2264 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
2539 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
2265 | |
2540 | |
2266 | if (ev_cb (w)) |
2541 | if (ev_cb (w)) |
2267 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2542 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2268 | else |
2543 | else |
2269 | ev_embed_sweep (loop, w); |
2544 | ev_loop (w->other, EVLOOP_NONBLOCK); |
2270 | } |
2545 | } |
2271 | |
2546 | |
2272 | static void |
2547 | static void |
2273 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
2548 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
2274 | { |
2549 | { |
2275 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
2550 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
2276 | |
2551 | |
2277 | fd_reify (w->other); |
2552 | { |
|
|
2553 | struct ev_loop *loop = w->other; |
|
|
2554 | |
|
|
2555 | while (fdchangecnt) |
|
|
2556 | { |
|
|
2557 | fd_reify (EV_A); |
|
|
2558 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
2559 | } |
|
|
2560 | } |
2278 | } |
2561 | } |
|
|
2562 | |
|
|
2563 | #if 0 |
|
|
2564 | static void |
|
|
2565 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
|
|
2566 | { |
|
|
2567 | ev_idle_stop (EV_A_ idle); |
|
|
2568 | } |
|
|
2569 | #endif |
2279 | |
2570 | |
2280 | void |
2571 | void |
2281 | ev_embed_start (EV_P_ ev_embed *w) |
2572 | ev_embed_start (EV_P_ ev_embed *w) |
2282 | { |
2573 | { |
2283 | if (expect_false (ev_is_active (w))) |
2574 | if (expect_false (ev_is_active (w))) |
… | |
… | |
2294 | |
2585 | |
2295 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
2586 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
2296 | ev_set_priority (&w->prepare, EV_MINPRI); |
2587 | ev_set_priority (&w->prepare, EV_MINPRI); |
2297 | ev_prepare_start (EV_A_ &w->prepare); |
2588 | ev_prepare_start (EV_A_ &w->prepare); |
2298 | |
2589 | |
|
|
2590 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
|
|
2591 | |
2299 | ev_start (EV_A_ (W)w, 1); |
2592 | ev_start (EV_A_ (W)w, 1); |
2300 | } |
2593 | } |
2301 | |
2594 | |
2302 | void |
2595 | void |
2303 | ev_embed_stop (EV_P_ ev_embed *w) |
2596 | ev_embed_stop (EV_P_ ev_embed *w) |
… | |
… | |
2331 | clear_pending (EV_A_ (W)w); |
2624 | clear_pending (EV_A_ (W)w); |
2332 | if (expect_false (!ev_is_active (w))) |
2625 | if (expect_false (!ev_is_active (w))) |
2333 | return; |
2626 | return; |
2334 | |
2627 | |
2335 | { |
2628 | { |
2336 | int active = ((W)w)->active; |
2629 | int active = ev_active (w); |
|
|
2630 | |
2337 | forks [active - 1] = forks [--forkcnt]; |
2631 | forks [active - 1] = forks [--forkcnt]; |
2338 | ((W)forks [active - 1])->active = active; |
2632 | ev_active (forks [active - 1]) = active; |
2339 | } |
2633 | } |
2340 | |
2634 | |
2341 | ev_stop (EV_A_ (W)w); |
2635 | ev_stop (EV_A_ (W)w); |
|
|
2636 | } |
|
|
2637 | #endif |
|
|
2638 | |
|
|
2639 | #if EV_ASYNC_ENABLE |
|
|
2640 | void |
|
|
2641 | ev_async_start (EV_P_ ev_async *w) |
|
|
2642 | { |
|
|
2643 | if (expect_false (ev_is_active (w))) |
|
|
2644 | return; |
|
|
2645 | |
|
|
2646 | evpipe_init (EV_A); |
|
|
2647 | |
|
|
2648 | ev_start (EV_A_ (W)w, ++asynccnt); |
|
|
2649 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
|
|
2650 | asyncs [asynccnt - 1] = w; |
|
|
2651 | } |
|
|
2652 | |
|
|
2653 | void |
|
|
2654 | ev_async_stop (EV_P_ ev_async *w) |
|
|
2655 | { |
|
|
2656 | clear_pending (EV_A_ (W)w); |
|
|
2657 | if (expect_false (!ev_is_active (w))) |
|
|
2658 | return; |
|
|
2659 | |
|
|
2660 | { |
|
|
2661 | int active = ev_active (w); |
|
|
2662 | |
|
|
2663 | asyncs [active - 1] = asyncs [--asynccnt]; |
|
|
2664 | ev_active (asyncs [active - 1]) = active; |
|
|
2665 | } |
|
|
2666 | |
|
|
2667 | ev_stop (EV_A_ (W)w); |
|
|
2668 | } |
|
|
2669 | |
|
|
2670 | void |
|
|
2671 | ev_async_send (EV_P_ ev_async *w) |
|
|
2672 | { |
|
|
2673 | w->sent = 1; |
|
|
2674 | evpipe_write (EV_A_ &gotasync); |
2342 | } |
2675 | } |
2343 | #endif |
2676 | #endif |
2344 | |
2677 | |
2345 | /*****************************************************************************/ |
2678 | /*****************************************************************************/ |
2346 | |
2679 | |