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 | #if EV_USE_MONOTONIC |
285 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
331 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
286 | /* giving it a reasonably high chance of working on typical architetcures */ |
332 | /* giving it a reasonably high chance of working on typical architetcures */ |
287 | static sig_atomic_t have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
333 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
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334 | #endif |
288 | |
335 | |
289 | #ifdef _WIN32 |
336 | #ifdef _WIN32 |
290 | # include "ev_win32.c" |
337 | # include "ev_win32.c" |
291 | #endif |
338 | #endif |
292 | |
339 | |
… | |
… | |
313 | perror (msg); |
360 | perror (msg); |
314 | abort (); |
361 | abort (); |
315 | } |
362 | } |
316 | } |
363 | } |
317 | |
364 | |
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365 | static void * |
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366 | ev_realloc_emul (void *ptr, long size) |
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367 | { |
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368 | /* some systems, notably openbsd and darwin, fail to properly |
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369 | * implement realloc (x, 0) (as required by both ansi c-98 and |
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370 | * the single unix specification, so work around them here. |
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371 | */ |
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372 | |
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373 | if (size) |
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374 | return realloc (ptr, size); |
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375 | |
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376 | free (ptr); |
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377 | return 0; |
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378 | } |
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379 | |
318 | static void *(*alloc)(void *ptr, long size); |
380 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
319 | |
381 | |
320 | void |
382 | void |
321 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
383 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
322 | { |
384 | { |
323 | alloc = cb; |
385 | alloc = cb; |
324 | } |
386 | } |
325 | |
387 | |
326 | inline_speed void * |
388 | inline_speed void * |
327 | ev_realloc (void *ptr, long size) |
389 | ev_realloc (void *ptr, long size) |
328 | { |
390 | { |
329 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
391 | ptr = alloc (ptr, size); |
330 | |
392 | |
331 | if (!ptr && size) |
393 | if (!ptr && size) |
332 | { |
394 | { |
333 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
395 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
334 | abort (); |
396 | abort (); |
… | |
… | |
441 | ts.tv_sec = (time_t)delay; |
503 | ts.tv_sec = (time_t)delay; |
442 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
504 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
443 | |
505 | |
444 | nanosleep (&ts, 0); |
506 | nanosleep (&ts, 0); |
445 | #elif defined(_WIN32) |
507 | #elif defined(_WIN32) |
446 | Sleep (delay * 1e3); |
508 | Sleep ((unsigned long)(delay * 1e3)); |
447 | #else |
509 | #else |
448 | struct timeval tv; |
510 | struct timeval tv; |
449 | |
511 | |
450 | tv.tv_sec = (time_t)delay; |
512 | tv.tv_sec = (time_t)delay; |
451 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
513 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
… | |
… | |
590 | |
652 | |
591 | #if EV_SELECT_IS_WINSOCKET |
653 | #if EV_SELECT_IS_WINSOCKET |
592 | if (events) |
654 | if (events) |
593 | { |
655 | { |
594 | unsigned long argp; |
656 | unsigned long argp; |
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657 | #ifdef EV_FD_TO_WIN32_HANDLE |
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658 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
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659 | #else |
595 | anfd->handle = _get_osfhandle (fd); |
660 | anfd->handle = _get_osfhandle (fd); |
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661 | #endif |
596 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
662 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
597 | } |
663 | } |
598 | #endif |
664 | #endif |
599 | |
665 | |
600 | { |
666 | { |
… | |
… | |
688 | } |
754 | } |
689 | } |
755 | } |
690 | |
756 | |
691 | /*****************************************************************************/ |
757 | /*****************************************************************************/ |
692 | |
758 | |
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759 | /* towards the root */ |
693 | void inline_speed |
760 | void inline_speed |
694 | upheap (WT *heap, int k) |
761 | upheap (WT *heap, int k) |
695 | { |
762 | { |
696 | WT w = heap [k]; |
763 | WT w = heap [k]; |
697 | |
764 | |
… | |
… | |
709 | |
776 | |
710 | heap [k] = w; |
777 | heap [k] = w; |
711 | ((W)heap [k])->active = k + 1; |
778 | ((W)heap [k])->active = k + 1; |
712 | } |
779 | } |
713 | |
780 | |
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781 | /* away from the root */ |
714 | void inline_speed |
782 | void inline_speed |
715 | downheap (WT *heap, int N, int k) |
783 | downheap (WT *heap, int N, int k) |
716 | { |
784 | { |
717 | WT w = heap [k]; |
785 | WT w = heap [k]; |
718 | |
786 | |
… | |
… | |
749 | /*****************************************************************************/ |
817 | /*****************************************************************************/ |
750 | |
818 | |
751 | typedef struct |
819 | typedef struct |
752 | { |
820 | { |
753 | WL head; |
821 | WL head; |
754 | sig_atomic_t volatile gotsig; |
822 | EV_ATOMIC_T gotsig; |
755 | } ANSIG; |
823 | } ANSIG; |
756 | |
824 | |
757 | static ANSIG *signals; |
825 | static ANSIG *signals; |
758 | static int signalmax; |
826 | static int signalmax; |
759 | |
827 | |
760 | static int sigpipe [2]; |
828 | static EV_ATOMIC_T gotsig; |
761 | static sig_atomic_t volatile gotsig; |
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762 | static ev_io sigev; |
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763 | |
829 | |
764 | void inline_size |
830 | void inline_size |
765 | signals_init (ANSIG *base, int count) |
831 | signals_init (ANSIG *base, int count) |
766 | { |
832 | { |
767 | while (count--) |
833 | while (count--) |
… | |
… | |
771 | |
837 | |
772 | ++base; |
838 | ++base; |
773 | } |
839 | } |
774 | } |
840 | } |
775 | |
841 | |
776 | static void |
842 | /*****************************************************************************/ |
777 | sighandler (int signum) |
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778 | { |
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779 | #if _WIN32 |
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780 | signal (signum, sighandler); |
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781 | #endif |
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782 | |
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783 | signals [signum - 1].gotsig = 1; |
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784 | |
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785 | if (!gotsig) |
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786 | { |
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787 | int old_errno = errno; |
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788 | gotsig = 1; |
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789 | write (sigpipe [1], &signum, 1); |
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790 | errno = old_errno; |
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791 | } |
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792 | } |
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793 | |
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794 | void noinline |
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795 | ev_feed_signal_event (EV_P_ int signum) |
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796 | { |
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797 | WL w; |
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798 | |
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799 | #if EV_MULTIPLICITY |
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800 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
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801 | #endif |
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802 | |
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803 | --signum; |
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804 | |
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805 | if (signum < 0 || signum >= signalmax) |
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806 | return; |
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807 | |
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808 | signals [signum].gotsig = 0; |
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809 | |
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810 | for (w = signals [signum].head; w; w = w->next) |
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811 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
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812 | } |
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813 | |
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814 | static void |
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815 | sigcb (EV_P_ ev_io *iow, int revents) |
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816 | { |
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817 | int signum; |
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818 | |
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819 | read (sigpipe [0], &revents, 1); |
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820 | gotsig = 0; |
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821 | |
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822 | for (signum = signalmax; signum--; ) |
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823 | if (signals [signum].gotsig) |
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824 | ev_feed_signal_event (EV_A_ signum + 1); |
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825 | } |
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826 | |
843 | |
827 | void inline_speed |
844 | void inline_speed |
828 | fd_intern (int fd) |
845 | fd_intern (int fd) |
829 | { |
846 | { |
830 | #ifdef _WIN32 |
847 | #ifdef _WIN32 |
… | |
… | |
835 | fcntl (fd, F_SETFL, O_NONBLOCK); |
852 | fcntl (fd, F_SETFL, O_NONBLOCK); |
836 | #endif |
853 | #endif |
837 | } |
854 | } |
838 | |
855 | |
839 | static void noinline |
856 | static void noinline |
840 | siginit (EV_P) |
857 | evpipe_init (EV_P) |
841 | { |
858 | { |
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859 | if (!ev_is_active (&pipeev)) |
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860 | { |
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861 | #if EV_USE_EVENTFD |
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862 | if ((evfd = eventfd (0, 0)) >= 0) |
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863 | { |
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864 | evpipe [0] = -1; |
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865 | fd_intern (evfd); |
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866 | ev_io_set (&pipeev, evfd, EV_READ); |
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867 | } |
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868 | else |
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869 | #endif |
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870 | { |
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871 | while (pipe (evpipe)) |
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872 | syserr ("(libev) error creating signal/async pipe"); |
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873 | |
842 | fd_intern (sigpipe [0]); |
874 | fd_intern (evpipe [0]); |
843 | fd_intern (sigpipe [1]); |
875 | fd_intern (evpipe [1]); |
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876 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
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877 | } |
844 | |
878 | |
845 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
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846 | ev_io_start (EV_A_ &sigev); |
879 | ev_io_start (EV_A_ &pipeev); |
847 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
880 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
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881 | } |
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882 | } |
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883 | |
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884 | void inline_size |
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885 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
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886 | { |
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887 | if (!*flag) |
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888 | { |
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889 | int old_errno = errno; /* save errno because write might clobber it */ |
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890 | |
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891 | *flag = 1; |
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892 | |
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|
893 | #if EV_USE_EVENTFD |
|
|
894 | if (evfd >= 0) |
|
|
895 | { |
|
|
896 | uint64_t counter = 1; |
|
|
897 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
898 | } |
|
|
899 | else |
|
|
900 | #endif |
|
|
901 | write (evpipe [1], &old_errno, 1); |
|
|
902 | |
|
|
903 | errno = old_errno; |
|
|
904 | } |
|
|
905 | } |
|
|
906 | |
|
|
907 | static void |
|
|
908 | pipecb (EV_P_ ev_io *iow, int revents) |
|
|
909 | { |
|
|
910 | #if EV_USE_EVENTFD |
|
|
911 | if (evfd >= 0) |
|
|
912 | { |
|
|
913 | uint64_t counter = 1; |
|
|
914 | read (evfd, &counter, sizeof (uint64_t)); |
|
|
915 | } |
|
|
916 | else |
|
|
917 | #endif |
|
|
918 | { |
|
|
919 | char dummy; |
|
|
920 | read (evpipe [0], &dummy, 1); |
|
|
921 | } |
|
|
922 | |
|
|
923 | if (gotsig && ev_is_default_loop (EV_A)) |
|
|
924 | { |
|
|
925 | int signum; |
|
|
926 | gotsig = 0; |
|
|
927 | |
|
|
928 | for (signum = signalmax; signum--; ) |
|
|
929 | if (signals [signum].gotsig) |
|
|
930 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
931 | } |
|
|
932 | |
|
|
933 | #if EV_ASYNC_ENABLE |
|
|
934 | if (gotasync) |
|
|
935 | { |
|
|
936 | int i; |
|
|
937 | gotasync = 0; |
|
|
938 | |
|
|
939 | for (i = asynccnt; i--; ) |
|
|
940 | if (asyncs [i]->sent) |
|
|
941 | { |
|
|
942 | asyncs [i]->sent = 0; |
|
|
943 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
|
|
944 | } |
|
|
945 | } |
|
|
946 | #endif |
848 | } |
947 | } |
849 | |
948 | |
850 | /*****************************************************************************/ |
949 | /*****************************************************************************/ |
851 | |
950 | |
|
|
951 | static void |
|
|
952 | ev_sighandler (int signum) |
|
|
953 | { |
|
|
954 | #if EV_MULTIPLICITY |
|
|
955 | struct ev_loop *loop = &default_loop_struct; |
|
|
956 | #endif |
|
|
957 | |
|
|
958 | #if _WIN32 |
|
|
959 | signal (signum, ev_sighandler); |
|
|
960 | #endif |
|
|
961 | |
|
|
962 | signals [signum - 1].gotsig = 1; |
|
|
963 | evpipe_write (EV_A_ &gotsig); |
|
|
964 | } |
|
|
965 | |
|
|
966 | void noinline |
|
|
967 | ev_feed_signal_event (EV_P_ int signum) |
|
|
968 | { |
|
|
969 | WL w; |
|
|
970 | |
|
|
971 | #if EV_MULTIPLICITY |
|
|
972 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
973 | #endif |
|
|
974 | |
|
|
975 | --signum; |
|
|
976 | |
|
|
977 | if (signum < 0 || signum >= signalmax) |
|
|
978 | return; |
|
|
979 | |
|
|
980 | signals [signum].gotsig = 0; |
|
|
981 | |
|
|
982 | for (w = signals [signum].head; w; w = w->next) |
|
|
983 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
984 | } |
|
|
985 | |
|
|
986 | /*****************************************************************************/ |
|
|
987 | |
852 | static WL childs [EV_PID_HASHSIZE]; |
988 | static WL childs [EV_PID_HASHSIZE]; |
853 | |
989 | |
854 | #ifndef _WIN32 |
990 | #ifndef _WIN32 |
855 | |
991 | |
856 | static ev_signal childev; |
992 | static ev_signal childev; |
857 | |
993 | |
|
|
994 | #ifndef WIFCONTINUED |
|
|
995 | # define WIFCONTINUED(status) 0 |
|
|
996 | #endif |
|
|
997 | |
858 | void inline_speed |
998 | void inline_speed |
859 | child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) |
999 | child_reap (EV_P_ int chain, int pid, int status) |
860 | { |
1000 | { |
861 | ev_child *w; |
1001 | ev_child *w; |
|
|
1002 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
862 | |
1003 | |
863 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1004 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1005 | { |
864 | if (w->pid == pid || !w->pid) |
1006 | if ((w->pid == pid || !w->pid) |
|
|
1007 | && (!traced || (w->flags & 1))) |
865 | { |
1008 | { |
866 | ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */ |
1009 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
867 | w->rpid = pid; |
1010 | w->rpid = pid; |
868 | w->rstatus = status; |
1011 | w->rstatus = status; |
869 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
1012 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
870 | } |
1013 | } |
|
|
1014 | } |
871 | } |
1015 | } |
872 | |
1016 | |
873 | #ifndef WCONTINUED |
1017 | #ifndef WCONTINUED |
874 | # define WCONTINUED 0 |
1018 | # define WCONTINUED 0 |
875 | #endif |
1019 | #endif |
… | |
… | |
884 | if (!WCONTINUED |
1028 | if (!WCONTINUED |
885 | || errno != EINVAL |
1029 | || errno != EINVAL |
886 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
1030 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
887 | return; |
1031 | return; |
888 | |
1032 | |
889 | /* make sure we are called again until all childs have been reaped */ |
1033 | /* make sure we are called again until all children have been reaped */ |
890 | /* we need to do it this way so that the callback gets called before we continue */ |
1034 | /* we need to do it this way so that the callback gets called before we continue */ |
891 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1035 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
892 | |
1036 | |
893 | child_reap (EV_A_ sw, pid, pid, status); |
1037 | child_reap (EV_A_ pid, pid, status); |
894 | if (EV_PID_HASHSIZE > 1) |
1038 | if (EV_PID_HASHSIZE > 1) |
895 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1039 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
896 | } |
1040 | } |
897 | |
1041 | |
898 | #endif |
1042 | #endif |
899 | |
1043 | |
900 | /*****************************************************************************/ |
1044 | /*****************************************************************************/ |
… | |
… | |
978 | |
1122 | |
979 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1123 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
980 | /* please fix it and tell me how to detect the fix */ |
1124 | /* please fix it and tell me how to detect the fix */ |
981 | flags &= ~EVBACKEND_EPOLL; |
1125 | flags &= ~EVBACKEND_EPOLL; |
982 | |
1126 | |
983 | #ifdef __APPLE__ |
|
|
984 | /* is there anything thats not broken on darwin? */ |
|
|
985 | flags &= ~EVBACKEND_KQUEUE; |
|
|
986 | #endif |
|
|
987 | |
|
|
988 | return flags; |
1127 | return flags; |
989 | } |
1128 | } |
990 | |
1129 | |
991 | unsigned int |
1130 | unsigned int |
992 | ev_backend (EV_P) |
1131 | ev_backend (EV_P) |
… | |
… | |
1023 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1162 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1024 | have_monotonic = 1; |
1163 | have_monotonic = 1; |
1025 | } |
1164 | } |
1026 | #endif |
1165 | #endif |
1027 | |
1166 | |
1028 | ev_rt_now = ev_time (); |
1167 | ev_rt_now = ev_time (); |
1029 | mn_now = get_clock (); |
1168 | mn_now = get_clock (); |
1030 | now_floor = mn_now; |
1169 | now_floor = mn_now; |
1031 | rtmn_diff = ev_rt_now - mn_now; |
1170 | rtmn_diff = ev_rt_now - mn_now; |
1032 | |
1171 | |
1033 | io_blocktime = 0.; |
1172 | io_blocktime = 0.; |
1034 | timeout_blocktime = 0.; |
1173 | timeout_blocktime = 0.; |
|
|
1174 | backend = 0; |
|
|
1175 | backend_fd = -1; |
|
|
1176 | gotasync = 0; |
|
|
1177 | #if EV_USE_INOTIFY |
|
|
1178 | fs_fd = -2; |
|
|
1179 | #endif |
1035 | |
1180 | |
1036 | /* pid check not overridable via env */ |
1181 | /* pid check not overridable via env */ |
1037 | #ifndef _WIN32 |
1182 | #ifndef _WIN32 |
1038 | if (flags & EVFLAG_FORKCHECK) |
1183 | if (flags & EVFLAG_FORKCHECK) |
1039 | curpid = getpid (); |
1184 | curpid = getpid (); |
… | |
… | |
1042 | if (!(flags & EVFLAG_NOENV) |
1187 | if (!(flags & EVFLAG_NOENV) |
1043 | && !enable_secure () |
1188 | && !enable_secure () |
1044 | && getenv ("LIBEV_FLAGS")) |
1189 | && getenv ("LIBEV_FLAGS")) |
1045 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1190 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1046 | |
1191 | |
1047 | if (!(flags & 0x0000ffffUL)) |
1192 | if (!(flags & 0x0000ffffU)) |
1048 | flags |= ev_recommended_backends (); |
1193 | flags |= ev_recommended_backends (); |
1049 | |
|
|
1050 | backend = 0; |
|
|
1051 | backend_fd = -1; |
|
|
1052 | #if EV_USE_INOTIFY |
|
|
1053 | fs_fd = -2; |
|
|
1054 | #endif |
|
|
1055 | |
1194 | |
1056 | #if EV_USE_PORT |
1195 | #if EV_USE_PORT |
1057 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1196 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1058 | #endif |
1197 | #endif |
1059 | #if EV_USE_KQUEUE |
1198 | #if EV_USE_KQUEUE |
… | |
… | |
1067 | #endif |
1206 | #endif |
1068 | #if EV_USE_SELECT |
1207 | #if EV_USE_SELECT |
1069 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1208 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1070 | #endif |
1209 | #endif |
1071 | |
1210 | |
1072 | ev_init (&sigev, sigcb); |
1211 | ev_init (&pipeev, pipecb); |
1073 | ev_set_priority (&sigev, EV_MAXPRI); |
1212 | ev_set_priority (&pipeev, EV_MAXPRI); |
1074 | } |
1213 | } |
1075 | } |
1214 | } |
1076 | |
1215 | |
1077 | static void noinline |
1216 | static void noinline |
1078 | loop_destroy (EV_P) |
1217 | loop_destroy (EV_P) |
1079 | { |
1218 | { |
1080 | int i; |
1219 | int i; |
|
|
1220 | |
|
|
1221 | if (ev_is_active (&pipeev)) |
|
|
1222 | { |
|
|
1223 | ev_ref (EV_A); /* signal watcher */ |
|
|
1224 | ev_io_stop (EV_A_ &pipeev); |
|
|
1225 | |
|
|
1226 | #if EV_USE_EVENTFD |
|
|
1227 | if (evfd >= 0) |
|
|
1228 | close (evfd); |
|
|
1229 | #endif |
|
|
1230 | |
|
|
1231 | if (evpipe [0] >= 0) |
|
|
1232 | { |
|
|
1233 | close (evpipe [0]); |
|
|
1234 | close (evpipe [1]); |
|
|
1235 | } |
|
|
1236 | } |
1081 | |
1237 | |
1082 | #if EV_USE_INOTIFY |
1238 | #if EV_USE_INOTIFY |
1083 | if (fs_fd >= 0) |
1239 | if (fs_fd >= 0) |
1084 | close (fs_fd); |
1240 | close (fs_fd); |
1085 | #endif |
1241 | #endif |
… | |
… | |
1122 | #if EV_FORK_ENABLE |
1278 | #if EV_FORK_ENABLE |
1123 | array_free (fork, EMPTY); |
1279 | array_free (fork, EMPTY); |
1124 | #endif |
1280 | #endif |
1125 | array_free (prepare, EMPTY); |
1281 | array_free (prepare, EMPTY); |
1126 | array_free (check, EMPTY); |
1282 | array_free (check, EMPTY); |
|
|
1283 | #if EV_ASYNC_ENABLE |
|
|
1284 | array_free (async, EMPTY); |
|
|
1285 | #endif |
1127 | |
1286 | |
1128 | backend = 0; |
1287 | backend = 0; |
1129 | } |
1288 | } |
1130 | |
1289 | |
|
|
1290 | #if EV_USE_INOTIFY |
1131 | void inline_size infy_fork (EV_P); |
1291 | void inline_size infy_fork (EV_P); |
|
|
1292 | #endif |
1132 | |
1293 | |
1133 | void inline_size |
1294 | void inline_size |
1134 | loop_fork (EV_P) |
1295 | loop_fork (EV_P) |
1135 | { |
1296 | { |
1136 | #if EV_USE_PORT |
1297 | #if EV_USE_PORT |
… | |
… | |
1144 | #endif |
1305 | #endif |
1145 | #if EV_USE_INOTIFY |
1306 | #if EV_USE_INOTIFY |
1146 | infy_fork (EV_A); |
1307 | infy_fork (EV_A); |
1147 | #endif |
1308 | #endif |
1148 | |
1309 | |
1149 | if (ev_is_active (&sigev)) |
1310 | if (ev_is_active (&pipeev)) |
1150 | { |
1311 | { |
1151 | /* default loop */ |
1312 | /* this "locks" the handlers against writing to the pipe */ |
|
|
1313 | /* while we modify the fd vars */ |
|
|
1314 | gotsig = 1; |
|
|
1315 | #if EV_ASYNC_ENABLE |
|
|
1316 | gotasync = 1; |
|
|
1317 | #endif |
1152 | |
1318 | |
1153 | ev_ref (EV_A); |
1319 | ev_ref (EV_A); |
1154 | ev_io_stop (EV_A_ &sigev); |
1320 | ev_io_stop (EV_A_ &pipeev); |
|
|
1321 | |
|
|
1322 | #if EV_USE_EVENTFD |
|
|
1323 | if (evfd >= 0) |
|
|
1324 | close (evfd); |
|
|
1325 | #endif |
|
|
1326 | |
|
|
1327 | if (evpipe [0] >= 0) |
|
|
1328 | { |
1155 | close (sigpipe [0]); |
1329 | close (evpipe [0]); |
1156 | close (sigpipe [1]); |
1330 | close (evpipe [1]); |
|
|
1331 | } |
1157 | |
1332 | |
1158 | while (pipe (sigpipe)) |
|
|
1159 | syserr ("(libev) error creating pipe"); |
|
|
1160 | |
|
|
1161 | siginit (EV_A); |
1333 | evpipe_init (EV_A); |
|
|
1334 | /* now iterate over everything, in case we missed something */ |
|
|
1335 | pipecb (EV_A_ &pipeev, EV_READ); |
1162 | } |
1336 | } |
1163 | |
1337 | |
1164 | postfork = 0; |
1338 | postfork = 0; |
1165 | } |
1339 | } |
1166 | |
1340 | |
… | |
… | |
1188 | } |
1362 | } |
1189 | |
1363 | |
1190 | void |
1364 | void |
1191 | ev_loop_fork (EV_P) |
1365 | ev_loop_fork (EV_P) |
1192 | { |
1366 | { |
1193 | postfork = 1; |
1367 | postfork = 1; /* must be in line with ev_default_fork */ |
1194 | } |
1368 | } |
1195 | |
1369 | |
1196 | #endif |
1370 | #endif |
1197 | |
1371 | |
1198 | #if EV_MULTIPLICITY |
1372 | #if EV_MULTIPLICITY |
… | |
… | |
1201 | #else |
1375 | #else |
1202 | int |
1376 | int |
1203 | ev_default_loop (unsigned int flags) |
1377 | ev_default_loop (unsigned int flags) |
1204 | #endif |
1378 | #endif |
1205 | { |
1379 | { |
1206 | if (sigpipe [0] == sigpipe [1]) |
|
|
1207 | if (pipe (sigpipe)) |
|
|
1208 | return 0; |
|
|
1209 | |
|
|
1210 | if (!ev_default_loop_ptr) |
1380 | if (!ev_default_loop_ptr) |
1211 | { |
1381 | { |
1212 | #if EV_MULTIPLICITY |
1382 | #if EV_MULTIPLICITY |
1213 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1383 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1214 | #else |
1384 | #else |
… | |
… | |
1217 | |
1387 | |
1218 | loop_init (EV_A_ flags); |
1388 | loop_init (EV_A_ flags); |
1219 | |
1389 | |
1220 | if (ev_backend (EV_A)) |
1390 | if (ev_backend (EV_A)) |
1221 | { |
1391 | { |
1222 | siginit (EV_A); |
|
|
1223 | |
|
|
1224 | #ifndef _WIN32 |
1392 | #ifndef _WIN32 |
1225 | ev_signal_init (&childev, childcb, SIGCHLD); |
1393 | ev_signal_init (&childev, childcb, SIGCHLD); |
1226 | ev_set_priority (&childev, EV_MAXPRI); |
1394 | ev_set_priority (&childev, EV_MAXPRI); |
1227 | ev_signal_start (EV_A_ &childev); |
1395 | ev_signal_start (EV_A_ &childev); |
1228 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1396 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
… | |
… | |
1245 | #ifndef _WIN32 |
1413 | #ifndef _WIN32 |
1246 | ev_ref (EV_A); /* child watcher */ |
1414 | ev_ref (EV_A); /* child watcher */ |
1247 | ev_signal_stop (EV_A_ &childev); |
1415 | ev_signal_stop (EV_A_ &childev); |
1248 | #endif |
1416 | #endif |
1249 | |
1417 | |
1250 | ev_ref (EV_A); /* signal watcher */ |
|
|
1251 | ev_io_stop (EV_A_ &sigev); |
|
|
1252 | |
|
|
1253 | close (sigpipe [0]); sigpipe [0] = 0; |
|
|
1254 | close (sigpipe [1]); sigpipe [1] = 0; |
|
|
1255 | |
|
|
1256 | loop_destroy (EV_A); |
1418 | loop_destroy (EV_A); |
1257 | } |
1419 | } |
1258 | |
1420 | |
1259 | void |
1421 | void |
1260 | ev_default_fork (void) |
1422 | ev_default_fork (void) |
… | |
… | |
1262 | #if EV_MULTIPLICITY |
1424 | #if EV_MULTIPLICITY |
1263 | struct ev_loop *loop = ev_default_loop_ptr; |
1425 | struct ev_loop *loop = ev_default_loop_ptr; |
1264 | #endif |
1426 | #endif |
1265 | |
1427 | |
1266 | if (backend) |
1428 | if (backend) |
1267 | postfork = 1; |
1429 | postfork = 1; /* must be in line with ev_loop_fork */ |
1268 | } |
1430 | } |
1269 | |
1431 | |
1270 | /*****************************************************************************/ |
1432 | /*****************************************************************************/ |
1271 | |
1433 | |
1272 | void |
1434 | void |
… | |
… | |
1481 | static int loop_done; |
1643 | static int loop_done; |
1482 | |
1644 | |
1483 | void |
1645 | void |
1484 | ev_loop (EV_P_ int flags) |
1646 | ev_loop (EV_P_ int flags) |
1485 | { |
1647 | { |
1486 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) |
1648 | loop_done = EVUNLOOP_CANCEL; |
1487 | ? EVUNLOOP_ONE |
|
|
1488 | : EVUNLOOP_CANCEL; |
|
|
1489 | |
1649 | |
1490 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
1650 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
1491 | |
1651 | |
1492 | do |
1652 | do |
1493 | { |
1653 | { |
… | |
… | |
1589 | /* queue check watchers, to be executed first */ |
1749 | /* queue check watchers, to be executed first */ |
1590 | if (expect_false (checkcnt)) |
1750 | if (expect_false (checkcnt)) |
1591 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1751 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1592 | |
1752 | |
1593 | call_pending (EV_A); |
1753 | call_pending (EV_A); |
1594 | |
|
|
1595 | } |
1754 | } |
1596 | while (expect_true (activecnt && !loop_done)); |
1755 | while (expect_true ( |
|
|
1756 | activecnt |
|
|
1757 | && !loop_done |
|
|
1758 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
|
|
1759 | )); |
1597 | |
1760 | |
1598 | if (loop_done == EVUNLOOP_ONE) |
1761 | if (loop_done == EVUNLOOP_ONE) |
1599 | loop_done = EVUNLOOP_CANCEL; |
1762 | loop_done = EVUNLOOP_CANCEL; |
1600 | } |
1763 | } |
1601 | |
1764 | |
… | |
… | |
1847 | if (expect_false (ev_is_active (w))) |
2010 | if (expect_false (ev_is_active (w))) |
1848 | return; |
2011 | return; |
1849 | |
2012 | |
1850 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2013 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1851 | |
2014 | |
|
|
2015 | evpipe_init (EV_A); |
|
|
2016 | |
1852 | { |
2017 | { |
1853 | #ifndef _WIN32 |
2018 | #ifndef _WIN32 |
1854 | sigset_t full, prev; |
2019 | sigset_t full, prev; |
1855 | sigfillset (&full); |
2020 | sigfillset (&full); |
1856 | sigprocmask (SIG_SETMASK, &full, &prev); |
2021 | sigprocmask (SIG_SETMASK, &full, &prev); |
… | |
… | |
1867 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2032 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
1868 | |
2033 | |
1869 | if (!((WL)w)->next) |
2034 | if (!((WL)w)->next) |
1870 | { |
2035 | { |
1871 | #if _WIN32 |
2036 | #if _WIN32 |
1872 | signal (w->signum, sighandler); |
2037 | signal (w->signum, ev_sighandler); |
1873 | #else |
2038 | #else |
1874 | struct sigaction sa; |
2039 | struct sigaction sa; |
1875 | sa.sa_handler = sighandler; |
2040 | sa.sa_handler = ev_sighandler; |
1876 | sigfillset (&sa.sa_mask); |
2041 | sigfillset (&sa.sa_mask); |
1877 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2042 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1878 | sigaction (w->signum, &sa, 0); |
2043 | sigaction (w->signum, &sa, 0); |
1879 | #endif |
2044 | #endif |
1880 | } |
2045 | } |
… | |
… | |
2369 | |
2534 | |
2370 | ev_stop (EV_A_ (W)w); |
2535 | ev_stop (EV_A_ (W)w); |
2371 | } |
2536 | } |
2372 | #endif |
2537 | #endif |
2373 | |
2538 | |
|
|
2539 | #if EV_ASYNC_ENABLE |
|
|
2540 | void |
|
|
2541 | ev_async_start (EV_P_ ev_async *w) |
|
|
2542 | { |
|
|
2543 | if (expect_false (ev_is_active (w))) |
|
|
2544 | return; |
|
|
2545 | |
|
|
2546 | evpipe_init (EV_A); |
|
|
2547 | |
|
|
2548 | ev_start (EV_A_ (W)w, ++asynccnt); |
|
|
2549 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
|
|
2550 | asyncs [asynccnt - 1] = w; |
|
|
2551 | } |
|
|
2552 | |
|
|
2553 | void |
|
|
2554 | ev_async_stop (EV_P_ ev_async *w) |
|
|
2555 | { |
|
|
2556 | clear_pending (EV_A_ (W)w); |
|
|
2557 | if (expect_false (!ev_is_active (w))) |
|
|
2558 | return; |
|
|
2559 | |
|
|
2560 | { |
|
|
2561 | int active = ((W)w)->active; |
|
|
2562 | asyncs [active - 1] = asyncs [--asynccnt]; |
|
|
2563 | ((W)asyncs [active - 1])->active = active; |
|
|
2564 | } |
|
|
2565 | |
|
|
2566 | ev_stop (EV_A_ (W)w); |
|
|
2567 | } |
|
|
2568 | |
|
|
2569 | void |
|
|
2570 | ev_async_send (EV_P_ ev_async *w) |
|
|
2571 | { |
|
|
2572 | w->sent = 1; |
|
|
2573 | evpipe_write (EV_A_ &gotasync); |
|
|
2574 | } |
|
|
2575 | #endif |
|
|
2576 | |
2374 | /*****************************************************************************/ |
2577 | /*****************************************************************************/ |
2375 | |
2578 | |
2376 | struct ev_once |
2579 | struct ev_once |
2377 | { |
2580 | { |
2378 | ev_io io; |
2581 | ev_io io; |