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" |
… | |
… | |
51 | # ifndef EV_USE_MONOTONIC |
60 | # ifndef EV_USE_MONOTONIC |
52 | # define EV_USE_MONOTONIC 0 |
61 | # define EV_USE_MONOTONIC 0 |
53 | # endif |
62 | # endif |
54 | # ifndef EV_USE_REALTIME |
63 | # ifndef EV_USE_REALTIME |
55 | # define EV_USE_REALTIME 0 |
64 | # define EV_USE_REALTIME 0 |
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65 | # endif |
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66 | # endif |
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67 | |
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68 | # ifndef EV_USE_NANOSLEEP |
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69 | # if HAVE_NANOSLEEP |
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70 | # define EV_USE_NANOSLEEP 1 |
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71 | # else |
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72 | # define EV_USE_NANOSLEEP 0 |
56 | # endif |
73 | # endif |
57 | # endif |
74 | # endif |
58 | |
75 | |
59 | # ifndef EV_USE_SELECT |
76 | # ifndef EV_USE_SELECT |
60 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
77 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
… | |
… | |
102 | # else |
119 | # else |
103 | # define EV_USE_INOTIFY 0 |
120 | # define EV_USE_INOTIFY 0 |
104 | # endif |
121 | # endif |
105 | # endif |
122 | # endif |
106 | |
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 | |
107 | #endif |
132 | #endif |
108 | |
133 | |
109 | #include <math.h> |
134 | #include <math.h> |
110 | #include <stdlib.h> |
135 | #include <stdlib.h> |
111 | #include <fcntl.h> |
136 | #include <fcntl.h> |
… | |
… | |
136 | # ifndef EV_SELECT_IS_WINSOCKET |
161 | # ifndef EV_SELECT_IS_WINSOCKET |
137 | # define EV_SELECT_IS_WINSOCKET 1 |
162 | # define EV_SELECT_IS_WINSOCKET 1 |
138 | # endif |
163 | # endif |
139 | #endif |
164 | #endif |
140 | |
165 | |
141 | /**/ |
166 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
142 | |
167 | |
143 | #ifndef EV_USE_MONOTONIC |
168 | #ifndef EV_USE_MONOTONIC |
144 | # define EV_USE_MONOTONIC 0 |
169 | # define EV_USE_MONOTONIC 0 |
145 | #endif |
170 | #endif |
146 | |
171 | |
147 | #ifndef EV_USE_REALTIME |
172 | #ifndef EV_USE_REALTIME |
148 | # define EV_USE_REALTIME 0 |
173 | # define EV_USE_REALTIME 0 |
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174 | #endif |
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175 | |
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176 | #ifndef EV_USE_NANOSLEEP |
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177 | # define EV_USE_NANOSLEEP 0 |
149 | #endif |
178 | #endif |
150 | |
179 | |
151 | #ifndef EV_USE_SELECT |
180 | #ifndef EV_USE_SELECT |
152 | # define EV_USE_SELECT 1 |
181 | # define EV_USE_SELECT 1 |
153 | #endif |
182 | #endif |
… | |
… | |
159 | # define EV_USE_POLL 1 |
188 | # define EV_USE_POLL 1 |
160 | # endif |
189 | # endif |
161 | #endif |
190 | #endif |
162 | |
191 | |
163 | #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 |
164 | # define EV_USE_EPOLL 0 |
196 | # define EV_USE_EPOLL 0 |
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197 | # endif |
165 | #endif |
198 | #endif |
166 | |
199 | |
167 | #ifndef EV_USE_KQUEUE |
200 | #ifndef EV_USE_KQUEUE |
168 | # define EV_USE_KQUEUE 0 |
201 | # define EV_USE_KQUEUE 0 |
169 | #endif |
202 | #endif |
… | |
… | |
171 | #ifndef EV_USE_PORT |
204 | #ifndef EV_USE_PORT |
172 | # define EV_USE_PORT 0 |
205 | # define EV_USE_PORT 0 |
173 | #endif |
206 | #endif |
174 | |
207 | |
175 | #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 |
176 | # define EV_USE_INOTIFY 0 |
212 | # define EV_USE_INOTIFY 0 |
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213 | # endif |
177 | #endif |
214 | #endif |
178 | |
215 | |
179 | #ifndef EV_PID_HASHSIZE |
216 | #ifndef EV_PID_HASHSIZE |
180 | # if EV_MINIMAL |
217 | # if EV_MINIMAL |
181 | # define EV_PID_HASHSIZE 1 |
218 | # define EV_PID_HASHSIZE 1 |
… | |
… | |
190 | # else |
227 | # else |
191 | # define EV_INOTIFY_HASHSIZE 16 |
228 | # define EV_INOTIFY_HASHSIZE 16 |
192 | # endif |
229 | # endif |
193 | #endif |
230 | #endif |
194 | |
231 | |
195 | /**/ |
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 */ |
196 | |
241 | |
197 | #ifndef CLOCK_MONOTONIC |
242 | #ifndef CLOCK_MONOTONIC |
198 | # undef EV_USE_MONOTONIC |
243 | # undef EV_USE_MONOTONIC |
199 | # define EV_USE_MONOTONIC 0 |
244 | # define EV_USE_MONOTONIC 0 |
200 | #endif |
245 | #endif |
… | |
… | |
207 | #if !EV_STAT_ENABLE |
252 | #if !EV_STAT_ENABLE |
208 | # undef EV_USE_INOTIFY |
253 | # undef EV_USE_INOTIFY |
209 | # define EV_USE_INOTIFY 0 |
254 | # define EV_USE_INOTIFY 0 |
210 | #endif |
255 | #endif |
211 | |
256 | |
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257 | #if !EV_USE_NANOSLEEP |
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258 | # ifndef _WIN32 |
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259 | # include <sys/select.h> |
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260 | # endif |
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261 | #endif |
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262 | |
212 | #if EV_USE_INOTIFY |
263 | #if EV_USE_INOTIFY |
213 | # include <sys/inotify.h> |
264 | # include <sys/inotify.h> |
214 | #endif |
265 | #endif |
215 | |
266 | |
216 | #if EV_SELECT_IS_WINSOCKET |
267 | #if EV_SELECT_IS_WINSOCKET |
217 | # 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 |
218 | #endif |
281 | #endif |
219 | |
282 | |
220 | /**/ |
283 | /**/ |
221 | |
284 | |
222 | /* |
285 | /* |
… | |
… | |
237 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
300 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
238 | # define noinline __attribute__ ((noinline)) |
301 | # define noinline __attribute__ ((noinline)) |
239 | #else |
302 | #else |
240 | # define expect(expr,value) (expr) |
303 | # define expect(expr,value) (expr) |
241 | # define noinline |
304 | # define noinline |
242 | # if __STDC_VERSION__ < 199901L |
305 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
243 | # define inline |
306 | # define inline |
244 | # endif |
307 | # endif |
245 | #endif |
308 | #endif |
246 | |
309 | |
247 | #define expect_false(expr) expect ((expr) != 0, 0) |
310 | #define expect_false(expr) expect ((expr) != 0, 0) |
… | |
… | |
262 | |
325 | |
263 | typedef ev_watcher *W; |
326 | typedef ev_watcher *W; |
264 | typedef ev_watcher_list *WL; |
327 | typedef ev_watcher_list *WL; |
265 | typedef ev_watcher_time *WT; |
328 | typedef ev_watcher_time *WT; |
266 | |
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 */ |
267 | 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 |
268 | |
338 | |
269 | #ifdef _WIN32 |
339 | #ifdef _WIN32 |
270 | # include "ev_win32.c" |
340 | # include "ev_win32.c" |
271 | #endif |
341 | #endif |
272 | |
342 | |
… | |
… | |
293 | perror (msg); |
363 | perror (msg); |
294 | abort (); |
364 | abort (); |
295 | } |
365 | } |
296 | } |
366 | } |
297 | |
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 | |
298 | static void *(*alloc)(void *ptr, long size); |
383 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
299 | |
384 | |
300 | void |
385 | void |
301 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
386 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
302 | { |
387 | { |
303 | alloc = cb; |
388 | alloc = cb; |
304 | } |
389 | } |
305 | |
390 | |
306 | inline_speed void * |
391 | inline_speed void * |
307 | ev_realloc (void *ptr, long size) |
392 | ev_realloc (void *ptr, long size) |
308 | { |
393 | { |
309 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
394 | ptr = alloc (ptr, size); |
310 | |
395 | |
311 | if (!ptr && size) |
396 | if (!ptr && size) |
312 | { |
397 | { |
313 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
398 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
314 | abort (); |
399 | abort (); |
… | |
… | |
408 | { |
493 | { |
409 | return ev_rt_now; |
494 | return ev_rt_now; |
410 | } |
495 | } |
411 | #endif |
496 | #endif |
412 | |
497 | |
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498 | void |
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499 | ev_sleep (ev_tstamp delay) |
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500 | { |
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501 | if (delay > 0.) |
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502 | { |
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503 | #if EV_USE_NANOSLEEP |
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504 | struct timespec ts; |
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505 | |
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506 | ts.tv_sec = (time_t)delay; |
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507 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
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508 | |
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509 | nanosleep (&ts, 0); |
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510 | #elif defined(_WIN32) |
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511 | Sleep ((unsigned long)(delay * 1e3)); |
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512 | #else |
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513 | struct timeval tv; |
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514 | |
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515 | tv.tv_sec = (time_t)delay; |
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516 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
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517 | |
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518 | select (0, 0, 0, 0, &tv); |
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519 | #endif |
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520 | } |
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521 | } |
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522 | |
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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 */ |
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526 | |
413 | int inline_size |
527 | int inline_size |
414 | array_nextsize (int elem, int cur, int cnt) |
528 | array_nextsize (int elem, int cur, int cnt) |
415 | { |
529 | { |
416 | int ncur = cur + 1; |
530 | int ncur = cur + 1; |
417 | |
531 | |
418 | do |
532 | do |
419 | ncur <<= 1; |
533 | ncur <<= 1; |
420 | while (cnt > ncur); |
534 | while (cnt > ncur); |
421 | |
535 | |
422 | /* 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 */ |
423 | if (elem * ncur > 4096) |
537 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
424 | { |
538 | { |
425 | ncur *= elem; |
539 | ncur *= elem; |
426 | ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095; |
540 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
427 | ncur = ncur - sizeof (void *) * 4; |
541 | ncur = ncur - sizeof (void *) * 4; |
428 | ncur /= elem; |
542 | ncur /= elem; |
429 | } |
543 | } |
430 | |
544 | |
431 | return ncur; |
545 | return ncur; |
… | |
… | |
543 | |
657 | |
544 | #if EV_SELECT_IS_WINSOCKET |
658 | #if EV_SELECT_IS_WINSOCKET |
545 | if (events) |
659 | if (events) |
546 | { |
660 | { |
547 | 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 |
548 | anfd->handle = _get_osfhandle (fd); |
665 | anfd->handle = _get_osfhandle (fd); |
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666 | #endif |
549 | 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)); |
550 | } |
668 | } |
551 | #endif |
669 | #endif |
552 | |
670 | |
553 | { |
671 | { |
… | |
… | |
641 | } |
759 | } |
642 | } |
760 | } |
643 | |
761 | |
644 | /*****************************************************************************/ |
762 | /*****************************************************************************/ |
645 | |
763 | |
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764 | /* towards the root */ |
646 | void inline_speed |
765 | void inline_speed |
647 | upheap (WT *heap, int k) |
766 | upheap (WT *heap, int k) |
648 | { |
767 | { |
649 | WT w = heap [k]; |
768 | WT w = heap [k]; |
650 | |
769 | |
651 | while (k) |
770 | for (;;) |
652 | { |
771 | { |
653 | int p = (k - 1) >> 1; |
772 | int p = k >> 1; |
654 | |
773 | |
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774 | /* maybe we could use a dummy element at heap [0]? */ |
655 | if (heap [p]->at <= w->at) |
775 | if (!p || heap [p]->at <= w->at) |
656 | break; |
776 | break; |
657 | |
777 | |
658 | heap [k] = heap [p]; |
778 | heap [k] = heap [p]; |
659 | ((W)heap [k])->active = k + 1; |
779 | ev_active (heap [k]) = k; |
660 | k = p; |
780 | k = p; |
661 | } |
781 | } |
662 | |
782 | |
663 | heap [k] = w; |
783 | heap [k] = w; |
664 | ((W)heap [k])->active = k + 1; |
784 | ev_active (heap [k]) = k; |
665 | } |
785 | } |
666 | |
786 | |
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787 | /* away from the root */ |
667 | void inline_speed |
788 | void inline_speed |
668 | downheap (WT *heap, int N, int k) |
789 | downheap (WT *heap, int N, int k) |
669 | { |
790 | { |
670 | WT w = heap [k]; |
791 | WT w = heap [k]; |
671 | |
792 | |
672 | for (;;) |
793 | for (;;) |
673 | { |
794 | { |
674 | int c = (k << 1) + 1; |
795 | int c = k << 1; |
675 | |
796 | |
676 | if (c >= N) |
797 | if (c > N) |
677 | break; |
798 | break; |
678 | |
799 | |
679 | c += c + 1 < N && heap [c]->at > heap [c + 1]->at |
800 | c += c < N && heap [c]->at > heap [c + 1]->at |
680 | ? 1 : 0; |
801 | ? 1 : 0; |
681 | |
802 | |
682 | if (w->at <= heap [c]->at) |
803 | if (w->at <= heap [c]->at) |
683 | break; |
804 | break; |
684 | |
805 | |
685 | heap [k] = heap [c]; |
806 | heap [k] = heap [c]; |
686 | ((W)heap [k])->active = k + 1; |
807 | ev_active (heap [k]) = k; |
687 | |
808 | |
688 | k = c; |
809 | k = c; |
689 | } |
810 | } |
690 | |
811 | |
691 | heap [k] = w; |
812 | heap [k] = w; |
692 | ((W)heap [k])->active = k + 1; |
813 | ev_active (heap [k]) = k; |
693 | } |
814 | } |
694 | |
815 | |
695 | void inline_size |
816 | void inline_size |
696 | adjustheap (WT *heap, int N, int k) |
817 | adjustheap (WT *heap, int N, int k) |
697 | { |
818 | { |
… | |
… | |
702 | /*****************************************************************************/ |
823 | /*****************************************************************************/ |
703 | |
824 | |
704 | typedef struct |
825 | typedef struct |
705 | { |
826 | { |
706 | WL head; |
827 | WL head; |
707 | sig_atomic_t volatile gotsig; |
828 | EV_ATOMIC_T gotsig; |
708 | } ANSIG; |
829 | } ANSIG; |
709 | |
830 | |
710 | static ANSIG *signals; |
831 | static ANSIG *signals; |
711 | static int signalmax; |
832 | static int signalmax; |
712 | |
833 | |
713 | static int sigpipe [2]; |
834 | static EV_ATOMIC_T gotsig; |
714 | static sig_atomic_t volatile gotsig; |
|
|
715 | static ev_io sigev; |
|
|
716 | |
835 | |
717 | void inline_size |
836 | void inline_size |
718 | signals_init (ANSIG *base, int count) |
837 | signals_init (ANSIG *base, int count) |
719 | { |
838 | { |
720 | while (count--) |
839 | while (count--) |
… | |
… | |
724 | |
843 | |
725 | ++base; |
844 | ++base; |
726 | } |
845 | } |
727 | } |
846 | } |
728 | |
847 | |
729 | static void |
848 | /*****************************************************************************/ |
730 | sighandler (int signum) |
|
|
731 | { |
|
|
732 | #if _WIN32 |
|
|
733 | signal (signum, sighandler); |
|
|
734 | #endif |
|
|
735 | |
|
|
736 | signals [signum - 1].gotsig = 1; |
|
|
737 | |
|
|
738 | if (!gotsig) |
|
|
739 | { |
|
|
740 | int old_errno = errno; |
|
|
741 | gotsig = 1; |
|
|
742 | write (sigpipe [1], &signum, 1); |
|
|
743 | errno = old_errno; |
|
|
744 | } |
|
|
745 | } |
|
|
746 | |
|
|
747 | void noinline |
|
|
748 | ev_feed_signal_event (EV_P_ int signum) |
|
|
749 | { |
|
|
750 | WL w; |
|
|
751 | |
|
|
752 | #if EV_MULTIPLICITY |
|
|
753 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
754 | #endif |
|
|
755 | |
|
|
756 | --signum; |
|
|
757 | |
|
|
758 | if (signum < 0 || signum >= signalmax) |
|
|
759 | return; |
|
|
760 | |
|
|
761 | signals [signum].gotsig = 0; |
|
|
762 | |
|
|
763 | for (w = signals [signum].head; w; w = w->next) |
|
|
764 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
765 | } |
|
|
766 | |
|
|
767 | static void |
|
|
768 | sigcb (EV_P_ ev_io *iow, int revents) |
|
|
769 | { |
|
|
770 | int signum; |
|
|
771 | |
|
|
772 | read (sigpipe [0], &revents, 1); |
|
|
773 | gotsig = 0; |
|
|
774 | |
|
|
775 | for (signum = signalmax; signum--; ) |
|
|
776 | if (signals [signum].gotsig) |
|
|
777 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
778 | } |
|
|
779 | |
849 | |
780 | void inline_speed |
850 | void inline_speed |
781 | fd_intern (int fd) |
851 | fd_intern (int fd) |
782 | { |
852 | { |
783 | #ifdef _WIN32 |
853 | #ifdef _WIN32 |
… | |
… | |
788 | fcntl (fd, F_SETFL, O_NONBLOCK); |
858 | fcntl (fd, F_SETFL, O_NONBLOCK); |
789 | #endif |
859 | #endif |
790 | } |
860 | } |
791 | |
861 | |
792 | static void noinline |
862 | static void noinline |
793 | siginit (EV_P) |
863 | evpipe_init (EV_P) |
794 | { |
864 | { |
|
|
865 | if (!ev_is_active (&pipeev)) |
|
|
866 | { |
|
|
867 | #if EV_USE_EVENTFD |
|
|
868 | if ((evfd = eventfd (0, 0)) >= 0) |
|
|
869 | { |
|
|
870 | evpipe [0] = -1; |
|
|
871 | fd_intern (evfd); |
|
|
872 | ev_io_set (&pipeev, evfd, EV_READ); |
|
|
873 | } |
|
|
874 | else |
|
|
875 | #endif |
|
|
876 | { |
|
|
877 | while (pipe (evpipe)) |
|
|
878 | syserr ("(libev) error creating signal/async pipe"); |
|
|
879 | |
795 | fd_intern (sigpipe [0]); |
880 | fd_intern (evpipe [0]); |
796 | fd_intern (sigpipe [1]); |
881 | fd_intern (evpipe [1]); |
|
|
882 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
|
|
883 | } |
797 | |
884 | |
798 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
|
|
799 | ev_io_start (EV_A_ &sigev); |
885 | ev_io_start (EV_A_ &pipeev); |
800 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
886 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
887 | } |
|
|
888 | } |
|
|
889 | |
|
|
890 | void inline_size |
|
|
891 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
892 | { |
|
|
893 | if (!*flag) |
|
|
894 | { |
|
|
895 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
896 | |
|
|
897 | *flag = 1; |
|
|
898 | |
|
|
899 | #if EV_USE_EVENTFD |
|
|
900 | if (evfd >= 0) |
|
|
901 | { |
|
|
902 | uint64_t counter = 1; |
|
|
903 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
904 | } |
|
|
905 | else |
|
|
906 | #endif |
|
|
907 | write (evpipe [1], &old_errno, 1); |
|
|
908 | |
|
|
909 | errno = old_errno; |
|
|
910 | } |
|
|
911 | } |
|
|
912 | |
|
|
913 | static void |
|
|
914 | pipecb (EV_P_ ev_io *iow, int revents) |
|
|
915 | { |
|
|
916 | #if EV_USE_EVENTFD |
|
|
917 | if (evfd >= 0) |
|
|
918 | { |
|
|
919 | uint64_t counter; |
|
|
920 | read (evfd, &counter, sizeof (uint64_t)); |
|
|
921 | } |
|
|
922 | else |
|
|
923 | #endif |
|
|
924 | { |
|
|
925 | char dummy; |
|
|
926 | read (evpipe [0], &dummy, 1); |
|
|
927 | } |
|
|
928 | |
|
|
929 | if (gotsig && ev_is_default_loop (EV_A)) |
|
|
930 | { |
|
|
931 | int signum; |
|
|
932 | gotsig = 0; |
|
|
933 | |
|
|
934 | for (signum = signalmax; signum--; ) |
|
|
935 | if (signals [signum].gotsig) |
|
|
936 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
937 | } |
|
|
938 | |
|
|
939 | #if EV_ASYNC_ENABLE |
|
|
940 | if (gotasync) |
|
|
941 | { |
|
|
942 | int i; |
|
|
943 | gotasync = 0; |
|
|
944 | |
|
|
945 | for (i = asynccnt; i--; ) |
|
|
946 | if (asyncs [i]->sent) |
|
|
947 | { |
|
|
948 | asyncs [i]->sent = 0; |
|
|
949 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
|
|
950 | } |
|
|
951 | } |
|
|
952 | #endif |
801 | } |
953 | } |
802 | |
954 | |
803 | /*****************************************************************************/ |
955 | /*****************************************************************************/ |
804 | |
956 | |
|
|
957 | static void |
|
|
958 | ev_sighandler (int signum) |
|
|
959 | { |
|
|
960 | #if EV_MULTIPLICITY |
|
|
961 | struct ev_loop *loop = &default_loop_struct; |
|
|
962 | #endif |
|
|
963 | |
|
|
964 | #if _WIN32 |
|
|
965 | signal (signum, ev_sighandler); |
|
|
966 | #endif |
|
|
967 | |
|
|
968 | signals [signum - 1].gotsig = 1; |
|
|
969 | evpipe_write (EV_A_ &gotsig); |
|
|
970 | } |
|
|
971 | |
|
|
972 | void noinline |
|
|
973 | ev_feed_signal_event (EV_P_ int signum) |
|
|
974 | { |
|
|
975 | WL w; |
|
|
976 | |
|
|
977 | #if EV_MULTIPLICITY |
|
|
978 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
979 | #endif |
|
|
980 | |
|
|
981 | --signum; |
|
|
982 | |
|
|
983 | if (signum < 0 || signum >= signalmax) |
|
|
984 | return; |
|
|
985 | |
|
|
986 | signals [signum].gotsig = 0; |
|
|
987 | |
|
|
988 | for (w = signals [signum].head; w; w = w->next) |
|
|
989 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
990 | } |
|
|
991 | |
|
|
992 | /*****************************************************************************/ |
|
|
993 | |
805 | static WL childs [EV_PID_HASHSIZE]; |
994 | static WL childs [EV_PID_HASHSIZE]; |
806 | |
995 | |
807 | #ifndef _WIN32 |
996 | #ifndef _WIN32 |
808 | |
997 | |
809 | static ev_signal childev; |
998 | static ev_signal childev; |
810 | |
999 | |
|
|
1000 | #ifndef WIFCONTINUED |
|
|
1001 | # define WIFCONTINUED(status) 0 |
|
|
1002 | #endif |
|
|
1003 | |
811 | void inline_speed |
1004 | void inline_speed |
812 | child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) |
1005 | child_reap (EV_P_ int chain, int pid, int status) |
813 | { |
1006 | { |
814 | ev_child *w; |
1007 | ev_child *w; |
|
|
1008 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
815 | |
1009 | |
816 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1010 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1011 | { |
817 | if (w->pid == pid || !w->pid) |
1012 | if ((w->pid == pid || !w->pid) |
|
|
1013 | && (!traced || (w->flags & 1))) |
818 | { |
1014 | { |
819 | ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */ |
1015 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
820 | w->rpid = pid; |
1016 | w->rpid = pid; |
821 | w->rstatus = status; |
1017 | w->rstatus = status; |
822 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
1018 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
823 | } |
1019 | } |
|
|
1020 | } |
824 | } |
1021 | } |
825 | |
1022 | |
826 | #ifndef WCONTINUED |
1023 | #ifndef WCONTINUED |
827 | # define WCONTINUED 0 |
1024 | # define WCONTINUED 0 |
828 | #endif |
1025 | #endif |
… | |
… | |
837 | if (!WCONTINUED |
1034 | if (!WCONTINUED |
838 | || errno != EINVAL |
1035 | || errno != EINVAL |
839 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
1036 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
840 | return; |
1037 | return; |
841 | |
1038 | |
842 | /* make sure we are called again until all childs have been reaped */ |
1039 | /* make sure we are called again until all children have been reaped */ |
843 | /* we need to do it this way so that the callback gets called before we continue */ |
1040 | /* we need to do it this way so that the callback gets called before we continue */ |
844 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1041 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
845 | |
1042 | |
846 | child_reap (EV_A_ sw, pid, pid, status); |
1043 | child_reap (EV_A_ pid, pid, status); |
847 | if (EV_PID_HASHSIZE > 1) |
1044 | if (EV_PID_HASHSIZE > 1) |
848 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1045 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
849 | } |
1046 | } |
850 | |
1047 | |
851 | #endif |
1048 | #endif |
852 | |
1049 | |
853 | /*****************************************************************************/ |
1050 | /*****************************************************************************/ |
… | |
… | |
925 | } |
1122 | } |
926 | |
1123 | |
927 | unsigned int |
1124 | unsigned int |
928 | ev_embeddable_backends (void) |
1125 | ev_embeddable_backends (void) |
929 | { |
1126 | { |
|
|
1127 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
|
|
1128 | |
930 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1129 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
931 | return EVBACKEND_KQUEUE |
1130 | /* please fix it and tell me how to detect the fix */ |
932 | | EVBACKEND_PORT; |
1131 | flags &= ~EVBACKEND_EPOLL; |
|
|
1132 | |
|
|
1133 | return flags; |
933 | } |
1134 | } |
934 | |
1135 | |
935 | unsigned int |
1136 | unsigned int |
936 | ev_backend (EV_P) |
1137 | ev_backend (EV_P) |
937 | { |
1138 | { |
… | |
… | |
940 | |
1141 | |
941 | unsigned int |
1142 | unsigned int |
942 | ev_loop_count (EV_P) |
1143 | ev_loop_count (EV_P) |
943 | { |
1144 | { |
944 | return loop_count; |
1145 | return loop_count; |
|
|
1146 | } |
|
|
1147 | |
|
|
1148 | void |
|
|
1149 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1150 | { |
|
|
1151 | io_blocktime = interval; |
|
|
1152 | } |
|
|
1153 | |
|
|
1154 | void |
|
|
1155 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1156 | { |
|
|
1157 | timeout_blocktime = interval; |
945 | } |
1158 | } |
946 | |
1159 | |
947 | static void noinline |
1160 | static void noinline |
948 | loop_init (EV_P_ unsigned int flags) |
1161 | loop_init (EV_P_ unsigned int flags) |
949 | { |
1162 | { |
… | |
… | |
955 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1168 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
956 | have_monotonic = 1; |
1169 | have_monotonic = 1; |
957 | } |
1170 | } |
958 | #endif |
1171 | #endif |
959 | |
1172 | |
960 | ev_rt_now = ev_time (); |
1173 | ev_rt_now = ev_time (); |
961 | mn_now = get_clock (); |
1174 | mn_now = get_clock (); |
962 | now_floor = mn_now; |
1175 | now_floor = mn_now; |
963 | rtmn_diff = ev_rt_now - mn_now; |
1176 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1177 | |
|
|
1178 | io_blocktime = 0.; |
|
|
1179 | timeout_blocktime = 0.; |
|
|
1180 | backend = 0; |
|
|
1181 | backend_fd = -1; |
|
|
1182 | gotasync = 0; |
|
|
1183 | #if EV_USE_INOTIFY |
|
|
1184 | fs_fd = -2; |
|
|
1185 | #endif |
964 | |
1186 | |
965 | /* pid check not overridable via env */ |
1187 | /* pid check not overridable via env */ |
966 | #ifndef _WIN32 |
1188 | #ifndef _WIN32 |
967 | if (flags & EVFLAG_FORKCHECK) |
1189 | if (flags & EVFLAG_FORKCHECK) |
968 | curpid = getpid (); |
1190 | curpid = getpid (); |
… | |
… | |
971 | if (!(flags & EVFLAG_NOENV) |
1193 | if (!(flags & EVFLAG_NOENV) |
972 | && !enable_secure () |
1194 | && !enable_secure () |
973 | && getenv ("LIBEV_FLAGS")) |
1195 | && getenv ("LIBEV_FLAGS")) |
974 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1196 | flags = atoi (getenv ("LIBEV_FLAGS")); |
975 | |
1197 | |
976 | if (!(flags & 0x0000ffffUL)) |
1198 | if (!(flags & 0x0000ffffU)) |
977 | flags |= ev_recommended_backends (); |
1199 | flags |= ev_recommended_backends (); |
978 | |
|
|
979 | backend = 0; |
|
|
980 | backend_fd = -1; |
|
|
981 | #if EV_USE_INOTIFY |
|
|
982 | fs_fd = -2; |
|
|
983 | #endif |
|
|
984 | |
1200 | |
985 | #if EV_USE_PORT |
1201 | #if EV_USE_PORT |
986 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1202 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
987 | #endif |
1203 | #endif |
988 | #if EV_USE_KQUEUE |
1204 | #if EV_USE_KQUEUE |
… | |
… | |
996 | #endif |
1212 | #endif |
997 | #if EV_USE_SELECT |
1213 | #if EV_USE_SELECT |
998 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1214 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
999 | #endif |
1215 | #endif |
1000 | |
1216 | |
1001 | ev_init (&sigev, sigcb); |
1217 | ev_init (&pipeev, pipecb); |
1002 | ev_set_priority (&sigev, EV_MAXPRI); |
1218 | ev_set_priority (&pipeev, EV_MAXPRI); |
1003 | } |
1219 | } |
1004 | } |
1220 | } |
1005 | |
1221 | |
1006 | static void noinline |
1222 | static void noinline |
1007 | loop_destroy (EV_P) |
1223 | loop_destroy (EV_P) |
1008 | { |
1224 | { |
1009 | int i; |
1225 | int i; |
|
|
1226 | |
|
|
1227 | if (ev_is_active (&pipeev)) |
|
|
1228 | { |
|
|
1229 | ev_ref (EV_A); /* signal watcher */ |
|
|
1230 | ev_io_stop (EV_A_ &pipeev); |
|
|
1231 | |
|
|
1232 | #if EV_USE_EVENTFD |
|
|
1233 | if (evfd >= 0) |
|
|
1234 | close (evfd); |
|
|
1235 | #endif |
|
|
1236 | |
|
|
1237 | if (evpipe [0] >= 0) |
|
|
1238 | { |
|
|
1239 | close (evpipe [0]); |
|
|
1240 | close (evpipe [1]); |
|
|
1241 | } |
|
|
1242 | } |
1010 | |
1243 | |
1011 | #if EV_USE_INOTIFY |
1244 | #if EV_USE_INOTIFY |
1012 | if (fs_fd >= 0) |
1245 | if (fs_fd >= 0) |
1013 | close (fs_fd); |
1246 | close (fs_fd); |
1014 | #endif |
1247 | #endif |
… | |
… | |
1051 | #if EV_FORK_ENABLE |
1284 | #if EV_FORK_ENABLE |
1052 | array_free (fork, EMPTY); |
1285 | array_free (fork, EMPTY); |
1053 | #endif |
1286 | #endif |
1054 | array_free (prepare, EMPTY); |
1287 | array_free (prepare, EMPTY); |
1055 | array_free (check, EMPTY); |
1288 | array_free (check, EMPTY); |
|
|
1289 | #if EV_ASYNC_ENABLE |
|
|
1290 | array_free (async, EMPTY); |
|
|
1291 | #endif |
1056 | |
1292 | |
1057 | backend = 0; |
1293 | backend = 0; |
1058 | } |
1294 | } |
1059 | |
1295 | |
|
|
1296 | #if EV_USE_INOTIFY |
1060 | void inline_size infy_fork (EV_P); |
1297 | void inline_size infy_fork (EV_P); |
|
|
1298 | #endif |
1061 | |
1299 | |
1062 | void inline_size |
1300 | void inline_size |
1063 | loop_fork (EV_P) |
1301 | loop_fork (EV_P) |
1064 | { |
1302 | { |
1065 | #if EV_USE_PORT |
1303 | #if EV_USE_PORT |
… | |
… | |
1073 | #endif |
1311 | #endif |
1074 | #if EV_USE_INOTIFY |
1312 | #if EV_USE_INOTIFY |
1075 | infy_fork (EV_A); |
1313 | infy_fork (EV_A); |
1076 | #endif |
1314 | #endif |
1077 | |
1315 | |
1078 | if (ev_is_active (&sigev)) |
1316 | if (ev_is_active (&pipeev)) |
1079 | { |
1317 | { |
1080 | /* default loop */ |
1318 | /* this "locks" the handlers against writing to the pipe */ |
|
|
1319 | /* while we modify the fd vars */ |
|
|
1320 | gotsig = 1; |
|
|
1321 | #if EV_ASYNC_ENABLE |
|
|
1322 | gotasync = 1; |
|
|
1323 | #endif |
1081 | |
1324 | |
1082 | ev_ref (EV_A); |
1325 | ev_ref (EV_A); |
1083 | ev_io_stop (EV_A_ &sigev); |
1326 | ev_io_stop (EV_A_ &pipeev); |
|
|
1327 | |
|
|
1328 | #if EV_USE_EVENTFD |
|
|
1329 | if (evfd >= 0) |
|
|
1330 | close (evfd); |
|
|
1331 | #endif |
|
|
1332 | |
|
|
1333 | if (evpipe [0] >= 0) |
|
|
1334 | { |
1084 | close (sigpipe [0]); |
1335 | close (evpipe [0]); |
1085 | close (sigpipe [1]); |
1336 | close (evpipe [1]); |
|
|
1337 | } |
1086 | |
1338 | |
1087 | while (pipe (sigpipe)) |
|
|
1088 | syserr ("(libev) error creating pipe"); |
|
|
1089 | |
|
|
1090 | siginit (EV_A); |
1339 | evpipe_init (EV_A); |
|
|
1340 | /* now iterate over everything, in case we missed something */ |
|
|
1341 | pipecb (EV_A_ &pipeev, EV_READ); |
1091 | } |
1342 | } |
1092 | |
1343 | |
1093 | postfork = 0; |
1344 | postfork = 0; |
1094 | } |
1345 | } |
1095 | |
1346 | |
… | |
… | |
1117 | } |
1368 | } |
1118 | |
1369 | |
1119 | void |
1370 | void |
1120 | ev_loop_fork (EV_P) |
1371 | ev_loop_fork (EV_P) |
1121 | { |
1372 | { |
1122 | postfork = 1; |
1373 | postfork = 1; /* must be in line with ev_default_fork */ |
1123 | } |
1374 | } |
1124 | |
1375 | |
1125 | #endif |
1376 | #endif |
1126 | |
1377 | |
1127 | #if EV_MULTIPLICITY |
1378 | #if EV_MULTIPLICITY |
… | |
… | |
1130 | #else |
1381 | #else |
1131 | int |
1382 | int |
1132 | ev_default_loop (unsigned int flags) |
1383 | ev_default_loop (unsigned int flags) |
1133 | #endif |
1384 | #endif |
1134 | { |
1385 | { |
1135 | if (sigpipe [0] == sigpipe [1]) |
|
|
1136 | if (pipe (sigpipe)) |
|
|
1137 | return 0; |
|
|
1138 | |
|
|
1139 | if (!ev_default_loop_ptr) |
1386 | if (!ev_default_loop_ptr) |
1140 | { |
1387 | { |
1141 | #if EV_MULTIPLICITY |
1388 | #if EV_MULTIPLICITY |
1142 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1389 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1143 | #else |
1390 | #else |
… | |
… | |
1146 | |
1393 | |
1147 | loop_init (EV_A_ flags); |
1394 | loop_init (EV_A_ flags); |
1148 | |
1395 | |
1149 | if (ev_backend (EV_A)) |
1396 | if (ev_backend (EV_A)) |
1150 | { |
1397 | { |
1151 | siginit (EV_A); |
|
|
1152 | |
|
|
1153 | #ifndef _WIN32 |
1398 | #ifndef _WIN32 |
1154 | ev_signal_init (&childev, childcb, SIGCHLD); |
1399 | ev_signal_init (&childev, childcb, SIGCHLD); |
1155 | ev_set_priority (&childev, EV_MAXPRI); |
1400 | ev_set_priority (&childev, EV_MAXPRI); |
1156 | ev_signal_start (EV_A_ &childev); |
1401 | ev_signal_start (EV_A_ &childev); |
1157 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1402 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
… | |
… | |
1174 | #ifndef _WIN32 |
1419 | #ifndef _WIN32 |
1175 | ev_ref (EV_A); /* child watcher */ |
1420 | ev_ref (EV_A); /* child watcher */ |
1176 | ev_signal_stop (EV_A_ &childev); |
1421 | ev_signal_stop (EV_A_ &childev); |
1177 | #endif |
1422 | #endif |
1178 | |
1423 | |
1179 | ev_ref (EV_A); /* signal watcher */ |
|
|
1180 | ev_io_stop (EV_A_ &sigev); |
|
|
1181 | |
|
|
1182 | close (sigpipe [0]); sigpipe [0] = 0; |
|
|
1183 | close (sigpipe [1]); sigpipe [1] = 0; |
|
|
1184 | |
|
|
1185 | loop_destroy (EV_A); |
1424 | loop_destroy (EV_A); |
1186 | } |
1425 | } |
1187 | |
1426 | |
1188 | void |
1427 | void |
1189 | ev_default_fork (void) |
1428 | ev_default_fork (void) |
… | |
… | |
1191 | #if EV_MULTIPLICITY |
1430 | #if EV_MULTIPLICITY |
1192 | struct ev_loop *loop = ev_default_loop_ptr; |
1431 | struct ev_loop *loop = ev_default_loop_ptr; |
1193 | #endif |
1432 | #endif |
1194 | |
1433 | |
1195 | if (backend) |
1434 | if (backend) |
1196 | postfork = 1; |
1435 | postfork = 1; /* must be in line with ev_loop_fork */ |
1197 | } |
1436 | } |
1198 | |
1437 | |
1199 | /*****************************************************************************/ |
1438 | /*****************************************************************************/ |
1200 | |
1439 | |
1201 | void |
1440 | void |
… | |
… | |
1225 | } |
1464 | } |
1226 | |
1465 | |
1227 | void inline_size |
1466 | void inline_size |
1228 | timers_reify (EV_P) |
1467 | timers_reify (EV_P) |
1229 | { |
1468 | { |
1230 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
1469 | while (timercnt && ev_at (timers [1]) <= mn_now) |
1231 | { |
1470 | { |
1232 | ev_timer *w = (ev_timer *)timers [0]; |
1471 | ev_timer *w = (ev_timer *)timers [1]; |
1233 | |
1472 | |
1234 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
1473 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
1235 | |
1474 | |
1236 | /* first reschedule or stop timer */ |
1475 | /* first reschedule or stop timer */ |
1237 | if (w->repeat) |
1476 | if (w->repeat) |
1238 | { |
1477 | { |
1239 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1478 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1240 | |
1479 | |
1241 | ((WT)w)->at += w->repeat; |
1480 | ev_at (w) += w->repeat; |
1242 | if (((WT)w)->at < mn_now) |
1481 | if (ev_at (w) < mn_now) |
1243 | ((WT)w)->at = mn_now; |
1482 | ev_at (w) = mn_now; |
1244 | |
1483 | |
1245 | downheap (timers, timercnt, 0); |
1484 | downheap (timers, timercnt, 1); |
1246 | } |
1485 | } |
1247 | else |
1486 | else |
1248 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1487 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1249 | |
1488 | |
1250 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
1489 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
… | |
… | |
1253 | |
1492 | |
1254 | #if EV_PERIODIC_ENABLE |
1493 | #if EV_PERIODIC_ENABLE |
1255 | void inline_size |
1494 | void inline_size |
1256 | periodics_reify (EV_P) |
1495 | periodics_reify (EV_P) |
1257 | { |
1496 | { |
1258 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
1497 | while (periodiccnt && ev_at (periodics [1]) <= ev_rt_now) |
1259 | { |
1498 | { |
1260 | ev_periodic *w = (ev_periodic *)periodics [0]; |
1499 | ev_periodic *w = (ev_periodic *)periodics [1]; |
1261 | |
1500 | |
1262 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
1501 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
1263 | |
1502 | |
1264 | /* first reschedule or stop timer */ |
1503 | /* first reschedule or stop timer */ |
1265 | if (w->reschedule_cb) |
1504 | if (w->reschedule_cb) |
1266 | { |
1505 | { |
1267 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); |
1506 | ev_at (w) = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); |
1268 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
1507 | assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) > ev_rt_now)); |
1269 | downheap (periodics, periodiccnt, 0); |
1508 | downheap (periodics, periodiccnt, 1); |
1270 | } |
1509 | } |
1271 | else if (w->interval) |
1510 | else if (w->interval) |
1272 | { |
1511 | { |
1273 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1512 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1274 | if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval; |
1513 | if (ev_at (w) - ev_rt_now <= TIME_EPSILON) ev_at (w) += w->interval; |
1275 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
1514 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ev_at (w) > ev_rt_now)); |
1276 | downheap (periodics, periodiccnt, 0); |
1515 | downheap (periodics, periodiccnt, 1); |
1277 | } |
1516 | } |
1278 | else |
1517 | else |
1279 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1518 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1280 | |
1519 | |
1281 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
1520 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
… | |
… | |
1286 | periodics_reschedule (EV_P) |
1525 | periodics_reschedule (EV_P) |
1287 | { |
1526 | { |
1288 | int i; |
1527 | int i; |
1289 | |
1528 | |
1290 | /* adjust periodics after time jump */ |
1529 | /* adjust periodics after time jump */ |
1291 | for (i = 0; i < periodiccnt; ++i) |
1530 | for (i = 1; i <= periodiccnt; ++i) |
1292 | { |
1531 | { |
1293 | ev_periodic *w = (ev_periodic *)periodics [i]; |
1532 | ev_periodic *w = (ev_periodic *)periodics [i]; |
1294 | |
1533 | |
1295 | if (w->reschedule_cb) |
1534 | if (w->reschedule_cb) |
1296 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1535 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1297 | else if (w->interval) |
1536 | else if (w->interval) |
1298 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1537 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1299 | } |
1538 | } |
1300 | |
1539 | |
1301 | /* now rebuild the heap */ |
1540 | /* now rebuild the heap */ |
1302 | for (i = periodiccnt >> 1; i--; ) |
1541 | for (i = periodiccnt >> 1; i--; ) |
1303 | downheap (periodics, periodiccnt, i); |
1542 | downheap (periodics, periodiccnt, i); |
… | |
… | |
1385 | { |
1624 | { |
1386 | #if EV_PERIODIC_ENABLE |
1625 | #if EV_PERIODIC_ENABLE |
1387 | periodics_reschedule (EV_A); |
1626 | periodics_reschedule (EV_A); |
1388 | #endif |
1627 | #endif |
1389 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
1628 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
1390 | for (i = 0; i < timercnt; ++i) |
1629 | for (i = 1; i <= timercnt; ++i) |
1391 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
1630 | ev_at (timers [i]) += ev_rt_now - mn_now; |
1392 | } |
1631 | } |
1393 | |
1632 | |
1394 | mn_now = ev_rt_now; |
1633 | mn_now = ev_rt_now; |
1395 | } |
1634 | } |
1396 | } |
1635 | } |
… | |
… | |
1410 | static int loop_done; |
1649 | static int loop_done; |
1411 | |
1650 | |
1412 | void |
1651 | void |
1413 | ev_loop (EV_P_ int flags) |
1652 | ev_loop (EV_P_ int flags) |
1414 | { |
1653 | { |
1415 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) |
1654 | loop_done = EVUNLOOP_CANCEL; |
1416 | ? EVUNLOOP_ONE |
|
|
1417 | : EVUNLOOP_CANCEL; |
|
|
1418 | |
1655 | |
1419 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
1656 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
1420 | |
1657 | |
1421 | do |
1658 | do |
1422 | { |
1659 | { |
… | |
… | |
1456 | /* update fd-related kernel structures */ |
1693 | /* update fd-related kernel structures */ |
1457 | fd_reify (EV_A); |
1694 | fd_reify (EV_A); |
1458 | |
1695 | |
1459 | /* calculate blocking time */ |
1696 | /* calculate blocking time */ |
1460 | { |
1697 | { |
1461 | ev_tstamp block; |
1698 | ev_tstamp waittime = 0.; |
|
|
1699 | ev_tstamp sleeptime = 0.; |
1462 | |
1700 | |
1463 | if (expect_false (flags & EVLOOP_NONBLOCK || idleall || !activecnt)) |
1701 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
1464 | block = 0.; /* do not block at all */ |
|
|
1465 | else |
|
|
1466 | { |
1702 | { |
1467 | /* update time to cancel out callback processing overhead */ |
1703 | /* update time to cancel out callback processing overhead */ |
1468 | time_update (EV_A_ 1e100); |
1704 | time_update (EV_A_ 1e100); |
1469 | |
1705 | |
1470 | block = MAX_BLOCKTIME; |
1706 | waittime = MAX_BLOCKTIME; |
1471 | |
1707 | |
1472 | if (timercnt) |
1708 | if (timercnt) |
1473 | { |
1709 | { |
1474 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
1710 | ev_tstamp to = ev_at (timers [1]) - mn_now + backend_fudge; |
1475 | if (block > to) block = to; |
1711 | if (waittime > to) waittime = to; |
1476 | } |
1712 | } |
1477 | |
1713 | |
1478 | #if EV_PERIODIC_ENABLE |
1714 | #if EV_PERIODIC_ENABLE |
1479 | if (periodiccnt) |
1715 | if (periodiccnt) |
1480 | { |
1716 | { |
1481 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
1717 | ev_tstamp to = ev_at (periodics [1]) - ev_rt_now + backend_fudge; |
1482 | if (block > to) block = to; |
1718 | if (waittime > to) waittime = to; |
1483 | } |
1719 | } |
1484 | #endif |
1720 | #endif |
1485 | |
1721 | |
1486 | if (expect_false (block < 0.)) block = 0.; |
1722 | if (expect_false (waittime < timeout_blocktime)) |
|
|
1723 | waittime = timeout_blocktime; |
|
|
1724 | |
|
|
1725 | sleeptime = waittime - backend_fudge; |
|
|
1726 | |
|
|
1727 | if (expect_true (sleeptime > io_blocktime)) |
|
|
1728 | sleeptime = io_blocktime; |
|
|
1729 | |
|
|
1730 | if (sleeptime) |
|
|
1731 | { |
|
|
1732 | ev_sleep (sleeptime); |
|
|
1733 | waittime -= sleeptime; |
|
|
1734 | } |
1487 | } |
1735 | } |
1488 | |
1736 | |
1489 | ++loop_count; |
1737 | ++loop_count; |
1490 | backend_poll (EV_A_ block); |
1738 | backend_poll (EV_A_ waittime); |
1491 | |
1739 | |
1492 | /* update ev_rt_now, do magic */ |
1740 | /* update ev_rt_now, do magic */ |
1493 | time_update (EV_A_ block); |
1741 | time_update (EV_A_ waittime + sleeptime); |
1494 | } |
1742 | } |
1495 | |
1743 | |
1496 | /* queue pending timers and reschedule them */ |
1744 | /* queue pending timers and reschedule them */ |
1497 | timers_reify (EV_A); /* relative timers called last */ |
1745 | timers_reify (EV_A); /* relative timers called last */ |
1498 | #if EV_PERIODIC_ENABLE |
1746 | #if EV_PERIODIC_ENABLE |
… | |
… | |
1507 | /* queue check watchers, to be executed first */ |
1755 | /* queue check watchers, to be executed first */ |
1508 | if (expect_false (checkcnt)) |
1756 | if (expect_false (checkcnt)) |
1509 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1757 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1510 | |
1758 | |
1511 | call_pending (EV_A); |
1759 | call_pending (EV_A); |
1512 | |
|
|
1513 | } |
1760 | } |
1514 | while (expect_true (activecnt && !loop_done)); |
1761 | while (expect_true ( |
|
|
1762 | activecnt |
|
|
1763 | && !loop_done |
|
|
1764 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
|
|
1765 | )); |
1515 | |
1766 | |
1516 | if (loop_done == EVUNLOOP_ONE) |
1767 | if (loop_done == EVUNLOOP_ONE) |
1517 | loop_done = EVUNLOOP_CANCEL; |
1768 | loop_done = EVUNLOOP_CANCEL; |
1518 | } |
1769 | } |
1519 | |
1770 | |
… | |
… | |
1637 | ev_timer_start (EV_P_ ev_timer *w) |
1888 | ev_timer_start (EV_P_ ev_timer *w) |
1638 | { |
1889 | { |
1639 | if (expect_false (ev_is_active (w))) |
1890 | if (expect_false (ev_is_active (w))) |
1640 | return; |
1891 | return; |
1641 | |
1892 | |
1642 | ((WT)w)->at += mn_now; |
1893 | ev_at (w) += mn_now; |
1643 | |
1894 | |
1644 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1895 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1645 | |
1896 | |
1646 | ev_start (EV_A_ (W)w, ++timercnt); |
1897 | ev_start (EV_A_ (W)w, ++timercnt); |
1647 | array_needsize (WT, timers, timermax, timercnt, EMPTY2); |
1898 | array_needsize (WT, timers, timermax, timercnt + 1, EMPTY2); |
1648 | timers [timercnt - 1] = (WT)w; |
1899 | timers [timercnt] = (WT)w; |
1649 | upheap (timers, timercnt - 1); |
1900 | upheap (timers, timercnt); |
1650 | |
1901 | |
1651 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
1902 | /*assert (("internal timer heap corruption", timers [ev_active (w)] == w));*/ |
1652 | } |
1903 | } |
1653 | |
1904 | |
1654 | void noinline |
1905 | void noinline |
1655 | ev_timer_stop (EV_P_ ev_timer *w) |
1906 | ev_timer_stop (EV_P_ ev_timer *w) |
1656 | { |
1907 | { |
1657 | clear_pending (EV_A_ (W)w); |
1908 | clear_pending (EV_A_ (W)w); |
1658 | if (expect_false (!ev_is_active (w))) |
1909 | if (expect_false (!ev_is_active (w))) |
1659 | return; |
1910 | return; |
1660 | |
1911 | |
1661 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w)); |
|
|
1662 | |
|
|
1663 | { |
1912 | { |
1664 | int active = ((W)w)->active; |
1913 | int active = ev_active (w); |
1665 | |
1914 | |
|
|
1915 | assert (("internal timer heap corruption", timers [active] == (WT)w)); |
|
|
1916 | |
1666 | if (expect_true (--active < --timercnt)) |
1917 | if (expect_true (active < timercnt)) |
1667 | { |
1918 | { |
1668 | timers [active] = timers [timercnt]; |
1919 | timers [active] = timers [timercnt]; |
1669 | adjustheap (timers, timercnt, active); |
1920 | adjustheap (timers, timercnt, active); |
1670 | } |
1921 | } |
|
|
1922 | |
|
|
1923 | --timercnt; |
1671 | } |
1924 | } |
1672 | |
1925 | |
1673 | ((WT)w)->at -= mn_now; |
1926 | ev_at (w) -= mn_now; |
1674 | |
1927 | |
1675 | ev_stop (EV_A_ (W)w); |
1928 | ev_stop (EV_A_ (W)w); |
1676 | } |
1929 | } |
1677 | |
1930 | |
1678 | void noinline |
1931 | void noinline |
… | |
… | |
1680 | { |
1933 | { |
1681 | if (ev_is_active (w)) |
1934 | if (ev_is_active (w)) |
1682 | { |
1935 | { |
1683 | if (w->repeat) |
1936 | if (w->repeat) |
1684 | { |
1937 | { |
1685 | ((WT)w)->at = mn_now + w->repeat; |
1938 | ev_at (w) = mn_now + w->repeat; |
1686 | adjustheap (timers, timercnt, ((W)w)->active - 1); |
1939 | adjustheap (timers, timercnt, ev_active (w)); |
1687 | } |
1940 | } |
1688 | else |
1941 | else |
1689 | ev_timer_stop (EV_A_ w); |
1942 | ev_timer_stop (EV_A_ w); |
1690 | } |
1943 | } |
1691 | else if (w->repeat) |
1944 | else if (w->repeat) |
1692 | { |
1945 | { |
1693 | w->at = w->repeat; |
1946 | ev_at (w) = w->repeat; |
1694 | ev_timer_start (EV_A_ w); |
1947 | ev_timer_start (EV_A_ w); |
1695 | } |
1948 | } |
1696 | } |
1949 | } |
1697 | |
1950 | |
1698 | #if EV_PERIODIC_ENABLE |
1951 | #if EV_PERIODIC_ENABLE |
… | |
… | |
1701 | { |
1954 | { |
1702 | if (expect_false (ev_is_active (w))) |
1955 | if (expect_false (ev_is_active (w))) |
1703 | return; |
1956 | return; |
1704 | |
1957 | |
1705 | if (w->reschedule_cb) |
1958 | if (w->reschedule_cb) |
1706 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1959 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1707 | else if (w->interval) |
1960 | else if (w->interval) |
1708 | { |
1961 | { |
1709 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1962 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1710 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1963 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1711 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1964 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1712 | } |
1965 | } |
1713 | else |
1966 | else |
1714 | ((WT)w)->at = w->offset; |
1967 | ev_at (w) = w->offset; |
1715 | |
1968 | |
1716 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1969 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1717 | array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2); |
1970 | array_needsize (WT, periodics, periodicmax, periodiccnt + 1, EMPTY2); |
1718 | periodics [periodiccnt - 1] = (WT)w; |
1971 | periodics [periodiccnt] = (WT)w; |
1719 | upheap (periodics, periodiccnt - 1); |
1972 | upheap (periodics, periodiccnt); |
1720 | |
1973 | |
1721 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
1974 | /*assert (("internal periodic heap corruption", periodics [ev_active (w)] == w));*/ |
1722 | } |
1975 | } |
1723 | |
1976 | |
1724 | void noinline |
1977 | void noinline |
1725 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1978 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1726 | { |
1979 | { |
1727 | clear_pending (EV_A_ (W)w); |
1980 | clear_pending (EV_A_ (W)w); |
1728 | if (expect_false (!ev_is_active (w))) |
1981 | if (expect_false (!ev_is_active (w))) |
1729 | return; |
1982 | return; |
1730 | |
1983 | |
1731 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w)); |
|
|
1732 | |
|
|
1733 | { |
1984 | { |
1734 | int active = ((W)w)->active; |
1985 | int active = ev_active (w); |
1735 | |
1986 | |
|
|
1987 | assert (("internal periodic heap corruption", periodics [active] == (WT)w)); |
|
|
1988 | |
1736 | if (expect_true (--active < --periodiccnt)) |
1989 | if (expect_true (active < periodiccnt)) |
1737 | { |
1990 | { |
1738 | periodics [active] = periodics [periodiccnt]; |
1991 | periodics [active] = periodics [periodiccnt]; |
1739 | adjustheap (periodics, periodiccnt, active); |
1992 | adjustheap (periodics, periodiccnt, active); |
1740 | } |
1993 | } |
|
|
1994 | |
|
|
1995 | --periodiccnt; |
1741 | } |
1996 | } |
1742 | |
1997 | |
1743 | ev_stop (EV_A_ (W)w); |
1998 | ev_stop (EV_A_ (W)w); |
1744 | } |
1999 | } |
1745 | |
2000 | |
… | |
… | |
1764 | #endif |
2019 | #endif |
1765 | if (expect_false (ev_is_active (w))) |
2020 | if (expect_false (ev_is_active (w))) |
1766 | return; |
2021 | return; |
1767 | |
2022 | |
1768 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2023 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
|
|
2024 | |
|
|
2025 | evpipe_init (EV_A); |
1769 | |
2026 | |
1770 | { |
2027 | { |
1771 | #ifndef _WIN32 |
2028 | #ifndef _WIN32 |
1772 | sigset_t full, prev; |
2029 | sigset_t full, prev; |
1773 | sigfillset (&full); |
2030 | sigfillset (&full); |
… | |
… | |
1785 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2042 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
1786 | |
2043 | |
1787 | if (!((WL)w)->next) |
2044 | if (!((WL)w)->next) |
1788 | { |
2045 | { |
1789 | #if _WIN32 |
2046 | #if _WIN32 |
1790 | signal (w->signum, sighandler); |
2047 | signal (w->signum, ev_sighandler); |
1791 | #else |
2048 | #else |
1792 | struct sigaction sa; |
2049 | struct sigaction sa; |
1793 | sa.sa_handler = sighandler; |
2050 | sa.sa_handler = ev_sighandler; |
1794 | sigfillset (&sa.sa_mask); |
2051 | sigfillset (&sa.sa_mask); |
1795 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2052 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1796 | sigaction (w->signum, &sa, 0); |
2053 | sigaction (w->signum, &sa, 0); |
1797 | #endif |
2054 | #endif |
1798 | } |
2055 | } |
… | |
… | |
1859 | if (w->wd < 0) |
2116 | if (w->wd < 0) |
1860 | { |
2117 | { |
1861 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2118 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
1862 | |
2119 | |
1863 | /* monitor some parent directory for speedup hints */ |
2120 | /* monitor some parent directory for speedup hints */ |
|
|
2121 | /* note that exceeding the hardcoded limit is not a correctness issue, */ |
|
|
2122 | /* but an efficiency issue only */ |
1864 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2123 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
1865 | { |
2124 | { |
1866 | char path [4096]; |
2125 | char path [4096]; |
1867 | strcpy (path, w->path); |
2126 | strcpy (path, w->path); |
1868 | |
2127 | |
… | |
… | |
2113 | clear_pending (EV_A_ (W)w); |
2372 | clear_pending (EV_A_ (W)w); |
2114 | if (expect_false (!ev_is_active (w))) |
2373 | if (expect_false (!ev_is_active (w))) |
2115 | return; |
2374 | return; |
2116 | |
2375 | |
2117 | { |
2376 | { |
2118 | int active = ((W)w)->active; |
2377 | int active = ev_active (w); |
2119 | |
2378 | |
2120 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2379 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2121 | ((W)idles [ABSPRI (w)][active - 1])->active = active; |
2380 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
2122 | |
2381 | |
2123 | ev_stop (EV_A_ (W)w); |
2382 | ev_stop (EV_A_ (W)w); |
2124 | --idleall; |
2383 | --idleall; |
2125 | } |
2384 | } |
2126 | } |
2385 | } |
… | |
… | |
2143 | clear_pending (EV_A_ (W)w); |
2402 | clear_pending (EV_A_ (W)w); |
2144 | if (expect_false (!ev_is_active (w))) |
2403 | if (expect_false (!ev_is_active (w))) |
2145 | return; |
2404 | return; |
2146 | |
2405 | |
2147 | { |
2406 | { |
2148 | int active = ((W)w)->active; |
2407 | int active = ev_active (w); |
|
|
2408 | |
2149 | prepares [active - 1] = prepares [--preparecnt]; |
2409 | prepares [active - 1] = prepares [--preparecnt]; |
2150 | ((W)prepares [active - 1])->active = active; |
2410 | ev_active (prepares [active - 1]) = active; |
2151 | } |
2411 | } |
2152 | |
2412 | |
2153 | ev_stop (EV_A_ (W)w); |
2413 | ev_stop (EV_A_ (W)w); |
2154 | } |
2414 | } |
2155 | |
2415 | |
… | |
… | |
2170 | clear_pending (EV_A_ (W)w); |
2430 | clear_pending (EV_A_ (W)w); |
2171 | if (expect_false (!ev_is_active (w))) |
2431 | if (expect_false (!ev_is_active (w))) |
2172 | return; |
2432 | return; |
2173 | |
2433 | |
2174 | { |
2434 | { |
2175 | int active = ((W)w)->active; |
2435 | int active = ev_active (w); |
|
|
2436 | |
2176 | checks [active - 1] = checks [--checkcnt]; |
2437 | checks [active - 1] = checks [--checkcnt]; |
2177 | ((W)checks [active - 1])->active = active; |
2438 | ev_active (checks [active - 1]) = active; |
2178 | } |
2439 | } |
2179 | |
2440 | |
2180 | ev_stop (EV_A_ (W)w); |
2441 | ev_stop (EV_A_ (W)w); |
2181 | } |
2442 | } |
2182 | |
2443 | |
… | |
… | |
2193 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
2454 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
2194 | |
2455 | |
2195 | if (ev_cb (w)) |
2456 | if (ev_cb (w)) |
2196 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2457 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2197 | else |
2458 | else |
2198 | ev_embed_sweep (loop, w); |
2459 | ev_loop (w->other, EVLOOP_NONBLOCK); |
2199 | } |
2460 | } |
2200 | |
2461 | |
2201 | static void |
2462 | static void |
2202 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
2463 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
2203 | { |
2464 | { |
2204 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
2465 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
2205 | |
2466 | |
2206 | fd_reify (w->other); |
2467 | { |
|
|
2468 | struct ev_loop *loop = w->other; |
|
|
2469 | |
|
|
2470 | while (fdchangecnt) |
|
|
2471 | { |
|
|
2472 | fd_reify (EV_A); |
|
|
2473 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
2474 | } |
|
|
2475 | } |
2207 | } |
2476 | } |
|
|
2477 | |
|
|
2478 | #if 0 |
|
|
2479 | static void |
|
|
2480 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
|
|
2481 | { |
|
|
2482 | ev_idle_stop (EV_A_ idle); |
|
|
2483 | } |
|
|
2484 | #endif |
2208 | |
2485 | |
2209 | void |
2486 | void |
2210 | ev_embed_start (EV_P_ ev_embed *w) |
2487 | ev_embed_start (EV_P_ ev_embed *w) |
2211 | { |
2488 | { |
2212 | if (expect_false (ev_is_active (w))) |
2489 | if (expect_false (ev_is_active (w))) |
… | |
… | |
2223 | |
2500 | |
2224 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
2501 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
2225 | ev_set_priority (&w->prepare, EV_MINPRI); |
2502 | ev_set_priority (&w->prepare, EV_MINPRI); |
2226 | ev_prepare_start (EV_A_ &w->prepare); |
2503 | ev_prepare_start (EV_A_ &w->prepare); |
2227 | |
2504 | |
|
|
2505 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
|
|
2506 | |
2228 | ev_start (EV_A_ (W)w, 1); |
2507 | ev_start (EV_A_ (W)w, 1); |
2229 | } |
2508 | } |
2230 | |
2509 | |
2231 | void |
2510 | void |
2232 | ev_embed_stop (EV_P_ ev_embed *w) |
2511 | ev_embed_stop (EV_P_ ev_embed *w) |
… | |
… | |
2260 | clear_pending (EV_A_ (W)w); |
2539 | clear_pending (EV_A_ (W)w); |
2261 | if (expect_false (!ev_is_active (w))) |
2540 | if (expect_false (!ev_is_active (w))) |
2262 | return; |
2541 | return; |
2263 | |
2542 | |
2264 | { |
2543 | { |
2265 | int active = ((W)w)->active; |
2544 | int active = ev_active (w); |
|
|
2545 | |
2266 | forks [active - 1] = forks [--forkcnt]; |
2546 | forks [active - 1] = forks [--forkcnt]; |
2267 | ((W)forks [active - 1])->active = active; |
2547 | ev_active (forks [active - 1]) = active; |
2268 | } |
2548 | } |
2269 | |
2549 | |
2270 | ev_stop (EV_A_ (W)w); |
2550 | ev_stop (EV_A_ (W)w); |
|
|
2551 | } |
|
|
2552 | #endif |
|
|
2553 | |
|
|
2554 | #if EV_ASYNC_ENABLE |
|
|
2555 | void |
|
|
2556 | ev_async_start (EV_P_ ev_async *w) |
|
|
2557 | { |
|
|
2558 | if (expect_false (ev_is_active (w))) |
|
|
2559 | return; |
|
|
2560 | |
|
|
2561 | evpipe_init (EV_A); |
|
|
2562 | |
|
|
2563 | ev_start (EV_A_ (W)w, ++asynccnt); |
|
|
2564 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
|
|
2565 | asyncs [asynccnt - 1] = w; |
|
|
2566 | } |
|
|
2567 | |
|
|
2568 | void |
|
|
2569 | ev_async_stop (EV_P_ ev_async *w) |
|
|
2570 | { |
|
|
2571 | clear_pending (EV_A_ (W)w); |
|
|
2572 | if (expect_false (!ev_is_active (w))) |
|
|
2573 | return; |
|
|
2574 | |
|
|
2575 | { |
|
|
2576 | int active = ev_active (w); |
|
|
2577 | |
|
|
2578 | asyncs [active - 1] = asyncs [--asynccnt]; |
|
|
2579 | ev_active (asyncs [active - 1]) = active; |
|
|
2580 | } |
|
|
2581 | |
|
|
2582 | ev_stop (EV_A_ (W)w); |
|
|
2583 | } |
|
|
2584 | |
|
|
2585 | void |
|
|
2586 | ev_async_send (EV_P_ ev_async *w) |
|
|
2587 | { |
|
|
2588 | w->sent = 1; |
|
|
2589 | evpipe_write (EV_A_ &gotasync); |
2271 | } |
2590 | } |
2272 | #endif |
2591 | #endif |
2273 | |
2592 | |
2274 | /*****************************************************************************/ |
2593 | /*****************************************************************************/ |
2275 | |
2594 | |