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 |
… | |
… | |
202 | #ifndef CLOCK_REALTIME |
247 | #ifndef CLOCK_REALTIME |
203 | # undef EV_USE_REALTIME |
248 | # undef EV_USE_REALTIME |
204 | # define EV_USE_REALTIME 0 |
249 | # define EV_USE_REALTIME 0 |
205 | #endif |
250 | #endif |
206 | |
251 | |
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252 | #if !EV_STAT_ENABLE |
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253 | # undef EV_USE_INOTIFY |
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254 | # define EV_USE_INOTIFY 0 |
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255 | #endif |
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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 | |
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263 | #if EV_USE_INOTIFY |
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264 | # include <sys/inotify.h> |
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265 | #endif |
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266 | |
207 | #if EV_SELECT_IS_WINSOCKET |
267 | #if EV_SELECT_IS_WINSOCKET |
208 | # include <winsock.h> |
268 | # include <winsock.h> |
209 | #endif |
269 | #endif |
210 | |
270 | |
211 | #if !EV_STAT_ENABLE |
271 | #if EV_USE_EVENTFD |
212 | # define EV_USE_INOTIFY 0 |
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" { |
213 | #endif |
276 | # endif |
214 | |
277 | int eventfd (unsigned int initval, int flags); |
215 | #if EV_USE_INOTIFY |
278 | # ifdef __cplusplus |
216 | # include <sys/inotify.h> |
279 | } |
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280 | # endif |
217 | #endif |
281 | #endif |
218 | |
282 | |
219 | /**/ |
283 | /**/ |
220 | |
284 | |
221 | /* |
285 | /* |
… | |
… | |
230 | |
294 | |
231 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
295 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
232 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
296 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
233 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
297 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
234 | |
298 | |
235 | #if __GNUC__ >= 3 |
299 | #if __GNUC__ >= 4 |
236 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
300 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
237 | # define noinline __attribute__ ((noinline)) |
301 | # define noinline __attribute__ ((noinline)) |
238 | #else |
302 | #else |
239 | # define expect(expr,value) (expr) |
303 | # define expect(expr,value) (expr) |
240 | # define noinline |
304 | # define noinline |
241 | # if __STDC_VERSION__ < 199901L |
305 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
242 | # define inline |
306 | # define inline |
243 | # endif |
307 | # endif |
244 | #endif |
308 | #endif |
245 | |
309 | |
246 | #define expect_false(expr) expect ((expr) != 0, 0) |
310 | #define expect_false(expr) expect ((expr) != 0, 0) |
… | |
… | |
261 | |
325 | |
262 | typedef ev_watcher *W; |
326 | typedef ev_watcher *W; |
263 | typedef ev_watcher_list *WL; |
327 | typedef ev_watcher_list *WL; |
264 | typedef ev_watcher_time *WT; |
328 | typedef ev_watcher_time *WT; |
265 | |
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 */ |
266 | 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 |
267 | |
338 | |
268 | #ifdef _WIN32 |
339 | #ifdef _WIN32 |
269 | # include "ev_win32.c" |
340 | # include "ev_win32.c" |
270 | #endif |
341 | #endif |
271 | |
342 | |
… | |
… | |
292 | perror (msg); |
363 | perror (msg); |
293 | abort (); |
364 | abort (); |
294 | } |
365 | } |
295 | } |
366 | } |
296 | |
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 | |
297 | static void *(*alloc)(void *ptr, long size); |
383 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
298 | |
384 | |
299 | void |
385 | void |
300 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
386 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
301 | { |
387 | { |
302 | alloc = cb; |
388 | alloc = cb; |
303 | } |
389 | } |
304 | |
390 | |
305 | inline_speed void * |
391 | inline_speed void * |
306 | ev_realloc (void *ptr, long size) |
392 | ev_realloc (void *ptr, long size) |
307 | { |
393 | { |
308 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
394 | ptr = alloc (ptr, size); |
309 | |
395 | |
310 | if (!ptr && size) |
396 | if (!ptr && size) |
311 | { |
397 | { |
312 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
398 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
313 | abort (); |
399 | abort (); |
… | |
… | |
336 | W w; |
422 | W w; |
337 | int events; |
423 | int events; |
338 | } ANPENDING; |
424 | } ANPENDING; |
339 | |
425 | |
340 | #if EV_USE_INOTIFY |
426 | #if EV_USE_INOTIFY |
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427 | /* hash table entry per inotify-id */ |
341 | typedef struct |
428 | typedef struct |
342 | { |
429 | { |
343 | WL head; |
430 | WL head; |
344 | } ANFS; |
431 | } ANFS; |
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432 | #endif |
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433 | |
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434 | /* Heap Entry */ |
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435 | #define EV_HEAP_CACHE_AT 0 |
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436 | #if EV_HEAP_CACHE_AT |
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437 | typedef struct { |
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438 | WT w; |
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439 | ev_tstamp at; |
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440 | } ANHE; |
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441 | |
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442 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
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443 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
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444 | #define ANHE_at_set(he) (he).at = (he).w->at /* update at from watcher */ |
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445 | #else |
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446 | typedef WT ANHE; |
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447 | |
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448 | #define ANHE_w(he) (he) |
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449 | #define ANHE_at(he) (he)->at |
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450 | #define ANHE_at_set(he) |
345 | #endif |
451 | #endif |
346 | |
452 | |
347 | #if EV_MULTIPLICITY |
453 | #if EV_MULTIPLICITY |
348 | |
454 | |
349 | struct ev_loop |
455 | struct ev_loop |
… | |
… | |
407 | { |
513 | { |
408 | return ev_rt_now; |
514 | return ev_rt_now; |
409 | } |
515 | } |
410 | #endif |
516 | #endif |
411 | |
517 | |
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518 | void |
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519 | ev_sleep (ev_tstamp delay) |
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520 | { |
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521 | if (delay > 0.) |
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522 | { |
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523 | #if EV_USE_NANOSLEEP |
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524 | struct timespec ts; |
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525 | |
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526 | ts.tv_sec = (time_t)delay; |
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527 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
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528 | |
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529 | nanosleep (&ts, 0); |
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530 | #elif defined(_WIN32) |
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531 | Sleep ((unsigned long)(delay * 1e3)); |
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532 | #else |
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533 | struct timeval tv; |
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534 | |
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535 | tv.tv_sec = (time_t)delay; |
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536 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
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537 | |
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538 | select (0, 0, 0, 0, &tv); |
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539 | #endif |
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540 | } |
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541 | } |
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542 | |
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543 | /*****************************************************************************/ |
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544 | |
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545 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
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546 | |
412 | int inline_size |
547 | int inline_size |
413 | array_nextsize (int elem, int cur, int cnt) |
548 | array_nextsize (int elem, int cur, int cnt) |
414 | { |
549 | { |
415 | int ncur = cur + 1; |
550 | int ncur = cur + 1; |
416 | |
551 | |
417 | do |
552 | do |
418 | ncur <<= 1; |
553 | ncur <<= 1; |
419 | while (cnt > ncur); |
554 | while (cnt > ncur); |
420 | |
555 | |
421 | /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */ |
556 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
422 | if (elem * ncur > 4096) |
557 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
423 | { |
558 | { |
424 | ncur *= elem; |
559 | ncur *= elem; |
425 | ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095; |
560 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
426 | ncur = ncur - sizeof (void *) * 4; |
561 | ncur = ncur - sizeof (void *) * 4; |
427 | ncur /= elem; |
562 | ncur /= elem; |
428 | } |
563 | } |
429 | |
564 | |
430 | return ncur; |
565 | return ncur; |
… | |
… | |
476 | pendings [pri][w_->pending - 1].w = w_; |
611 | pendings [pri][w_->pending - 1].w = w_; |
477 | pendings [pri][w_->pending - 1].events = revents; |
612 | pendings [pri][w_->pending - 1].events = revents; |
478 | } |
613 | } |
479 | } |
614 | } |
480 | |
615 | |
481 | void inline_size |
616 | void inline_speed |
482 | queue_events (EV_P_ W *events, int eventcnt, int type) |
617 | queue_events (EV_P_ W *events, int eventcnt, int type) |
483 | { |
618 | { |
484 | int i; |
619 | int i; |
485 | |
620 | |
486 | for (i = 0; i < eventcnt; ++i) |
621 | for (i = 0; i < eventcnt; ++i) |
… | |
… | |
533 | { |
668 | { |
534 | int fd = fdchanges [i]; |
669 | int fd = fdchanges [i]; |
535 | ANFD *anfd = anfds + fd; |
670 | ANFD *anfd = anfds + fd; |
536 | ev_io *w; |
671 | ev_io *w; |
537 | |
672 | |
538 | int events = 0; |
673 | unsigned char events = 0; |
539 | |
674 | |
540 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
675 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
541 | events |= w->events; |
676 | events |= (unsigned char)w->events; |
542 | |
677 | |
543 | #if EV_SELECT_IS_WINSOCKET |
678 | #if EV_SELECT_IS_WINSOCKET |
544 | if (events) |
679 | if (events) |
545 | { |
680 | { |
546 | unsigned long argp; |
681 | unsigned long argp; |
|
|
682 | #ifdef EV_FD_TO_WIN32_HANDLE |
|
|
683 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
684 | #else |
547 | anfd->handle = _get_osfhandle (fd); |
685 | anfd->handle = _get_osfhandle (fd); |
|
|
686 | #endif |
548 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
687 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
549 | } |
688 | } |
550 | #endif |
689 | #endif |
551 | |
690 | |
|
|
691 | { |
|
|
692 | unsigned char o_events = anfd->events; |
|
|
693 | unsigned char o_reify = anfd->reify; |
|
|
694 | |
552 | anfd->reify = 0; |
695 | anfd->reify = 0; |
553 | |
|
|
554 | backend_modify (EV_A_ fd, anfd->events, events); |
|
|
555 | anfd->events = events; |
696 | anfd->events = events; |
|
|
697 | |
|
|
698 | if (o_events != events || o_reify & EV_IOFDSET) |
|
|
699 | backend_modify (EV_A_ fd, o_events, events); |
|
|
700 | } |
556 | } |
701 | } |
557 | |
702 | |
558 | fdchangecnt = 0; |
703 | fdchangecnt = 0; |
559 | } |
704 | } |
560 | |
705 | |
561 | void inline_size |
706 | void inline_size |
562 | fd_change (EV_P_ int fd) |
707 | fd_change (EV_P_ int fd, int flags) |
563 | { |
708 | { |
564 | if (expect_false (anfds [fd].reify)) |
709 | unsigned char reify = anfds [fd].reify; |
565 | return; |
|
|
566 | |
|
|
567 | anfds [fd].reify = 1; |
710 | anfds [fd].reify |= flags; |
568 | |
711 | |
|
|
712 | if (expect_true (!reify)) |
|
|
713 | { |
569 | ++fdchangecnt; |
714 | ++fdchangecnt; |
570 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
715 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
571 | fdchanges [fdchangecnt - 1] = fd; |
716 | fdchanges [fdchangecnt - 1] = fd; |
|
|
717 | } |
572 | } |
718 | } |
573 | |
719 | |
574 | void inline_speed |
720 | void inline_speed |
575 | fd_kill (EV_P_ int fd) |
721 | fd_kill (EV_P_ int fd) |
576 | { |
722 | { |
… | |
… | |
627 | |
773 | |
628 | for (fd = 0; fd < anfdmax; ++fd) |
774 | for (fd = 0; fd < anfdmax; ++fd) |
629 | if (anfds [fd].events) |
775 | if (anfds [fd].events) |
630 | { |
776 | { |
631 | anfds [fd].events = 0; |
777 | anfds [fd].events = 0; |
632 | fd_change (EV_A_ fd); |
778 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
633 | } |
779 | } |
634 | } |
780 | } |
635 | |
781 | |
636 | /*****************************************************************************/ |
782 | /*****************************************************************************/ |
637 | |
783 | |
|
|
784 | /* |
|
|
785 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
|
|
786 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
|
|
787 | * the branching factor of the d-tree. |
|
|
788 | */ |
|
|
789 | |
|
|
790 | /* |
|
|
791 | * at the moment we allow libev the luxury of two heaps, |
|
|
792 | * a small-code-size 2-heap one and a ~1.5kb larger 4-heap |
|
|
793 | * which is more cache-efficient. |
|
|
794 | * the difference is about 5% with 50000+ watchers. |
|
|
795 | */ |
|
|
796 | #define EV_USE_4HEAP !EV_MINIMAL |
|
|
797 | #if EV_USE_4HEAP |
|
|
798 | |
|
|
799 | #define DHEAP 4 |
|
|
800 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
|
|
801 | |
|
|
802 | /* towards the root */ |
638 | void inline_speed |
803 | void inline_speed |
639 | upheap (WT *heap, int k) |
804 | upheap (ANHE *heap, int k) |
640 | { |
805 | { |
641 | WT w = heap [k]; |
806 | ANHE he = heap [k]; |
642 | |
807 | |
643 | while (k && heap [k >> 1]->at > w->at) |
808 | for (;;) |
644 | { |
809 | { |
|
|
810 | int p = ((k - HEAP0 - 1) / DHEAP) + HEAP0; |
|
|
811 | |
|
|
812 | if (p == k || ANHE_at (heap [p]) <= ANHE_at (he)) |
|
|
813 | break; |
|
|
814 | |
645 | heap [k] = heap [k >> 1]; |
815 | heap [k] = heap [p]; |
646 | ((W)heap [k])->active = k + 1; |
816 | ev_active (ANHE_w (heap [k])) = k; |
647 | k >>= 1; |
817 | k = p; |
|
|
818 | } |
|
|
819 | |
|
|
820 | ev_active (ANHE_w (he)) = k; |
|
|
821 | heap [k] = he; |
|
|
822 | } |
|
|
823 | |
|
|
824 | /* away from the root */ |
|
|
825 | void inline_speed |
|
|
826 | downheap (ANHE *heap, int N, int k) |
|
|
827 | { |
|
|
828 | ANHE he = heap [k]; |
|
|
829 | ANHE *E = heap + N + HEAP0; |
|
|
830 | |
|
|
831 | for (;;) |
|
|
832 | { |
|
|
833 | ev_tstamp minat; |
|
|
834 | ANHE *minpos; |
|
|
835 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0; |
|
|
836 | |
|
|
837 | // find minimum child |
|
|
838 | if (expect_true (pos + DHEAP - 1 < E)) |
|
|
839 | { |
|
|
840 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
841 | if (ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
842 | if (ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
843 | if (ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
844 | } |
|
|
845 | else if (pos < E) |
|
|
846 | { |
|
|
847 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
848 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
849 | if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
850 | if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
851 | } |
|
|
852 | else |
|
|
853 | break; |
|
|
854 | |
|
|
855 | if (ANHE_at (he) <= minat) |
|
|
856 | break; |
|
|
857 | |
|
|
858 | ev_active (ANHE_w (*minpos)) = k; |
|
|
859 | heap [k] = *minpos; |
|
|
860 | |
|
|
861 | k = minpos - heap; |
|
|
862 | } |
|
|
863 | |
|
|
864 | ev_active (ANHE_w (he)) = k; |
|
|
865 | heap [k] = he; |
|
|
866 | } |
|
|
867 | |
|
|
868 | #else // 4HEAP |
|
|
869 | |
|
|
870 | #define HEAP0 1 |
|
|
871 | |
|
|
872 | /* towards the root */ |
|
|
873 | void inline_speed |
|
|
874 | upheap (ANHE *heap, int k) |
|
|
875 | { |
|
|
876 | ANHE he = heap [k]; |
|
|
877 | |
|
|
878 | for (;;) |
|
|
879 | { |
|
|
880 | int p = k >> 1; |
|
|
881 | |
|
|
882 | /* maybe we could use a dummy element at heap [0]? */ |
|
|
883 | if (!p || ANHE_at (heap [p]) <= ANHE_at (he)) |
|
|
884 | break; |
|
|
885 | |
|
|
886 | heap [k] = heap [p]; |
|
|
887 | ev_active (ANHE_w (heap [k])) = k; |
|
|
888 | k = p; |
648 | } |
889 | } |
649 | |
890 | |
650 | heap [k] = w; |
891 | heap [k] = w; |
651 | ((W)heap [k])->active = k + 1; |
892 | ev_active (ANHE_w (heap [k])) = k; |
652 | |
|
|
653 | } |
893 | } |
654 | |
894 | |
|
|
895 | /* away from the root */ |
655 | void inline_speed |
896 | void inline_speed |
656 | downheap (WT *heap, int N, int k) |
897 | downheap (ANHE *heap, int N, int k) |
657 | { |
898 | { |
658 | WT w = heap [k]; |
899 | ANHE he = heap [k]; |
659 | |
900 | |
660 | while (k < (N >> 1)) |
901 | for (;;) |
661 | { |
902 | { |
662 | int j = k << 1; |
903 | int c = k << 1; |
663 | |
904 | |
664 | if (j + 1 < N && heap [j]->at > heap [j + 1]->at) |
905 | if (c > N) |
665 | ++j; |
|
|
666 | |
|
|
667 | if (w->at <= heap [j]->at) |
|
|
668 | break; |
906 | break; |
669 | |
907 | |
|
|
908 | c += c + 1 < N && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
|
|
909 | ? 1 : 0; |
|
|
910 | |
|
|
911 | if (w->at <= ANHE_at (heap [c])) |
|
|
912 | break; |
|
|
913 | |
670 | heap [k] = heap [j]; |
914 | heap [k] = heap [c]; |
671 | ((W)heap [k])->active = k + 1; |
915 | ev_active (ANHE_w (heap [k])) = k; |
|
|
916 | |
672 | k = j; |
917 | k = c; |
673 | } |
918 | } |
674 | |
919 | |
675 | heap [k] = w; |
920 | heap [k] = he; |
676 | ((W)heap [k])->active = k + 1; |
921 | ev_active (ANHE_w (he)) = k; |
677 | } |
922 | } |
|
|
923 | #endif |
678 | |
924 | |
679 | void inline_size |
925 | void inline_size |
680 | adjustheap (WT *heap, int N, int k) |
926 | adjustheap (ANHE *heap, int N, int k) |
681 | { |
927 | { |
682 | upheap (heap, k); |
928 | upheap (heap, k); |
683 | downheap (heap, N, k); |
929 | downheap (heap, N, k); |
684 | } |
930 | } |
685 | |
931 | |
686 | /*****************************************************************************/ |
932 | /*****************************************************************************/ |
687 | |
933 | |
688 | typedef struct |
934 | typedef struct |
689 | { |
935 | { |
690 | WL head; |
936 | WL head; |
691 | sig_atomic_t volatile gotsig; |
937 | EV_ATOMIC_T gotsig; |
692 | } ANSIG; |
938 | } ANSIG; |
693 | |
939 | |
694 | static ANSIG *signals; |
940 | static ANSIG *signals; |
695 | static int signalmax; |
941 | static int signalmax; |
696 | |
942 | |
697 | static int sigpipe [2]; |
943 | static EV_ATOMIC_T gotsig; |
698 | static sig_atomic_t volatile gotsig; |
|
|
699 | static ev_io sigev; |
|
|
700 | |
944 | |
701 | void inline_size |
945 | void inline_size |
702 | signals_init (ANSIG *base, int count) |
946 | signals_init (ANSIG *base, int count) |
703 | { |
947 | { |
704 | while (count--) |
948 | while (count--) |
… | |
… | |
708 | |
952 | |
709 | ++base; |
953 | ++base; |
710 | } |
954 | } |
711 | } |
955 | } |
712 | |
956 | |
713 | static void |
957 | /*****************************************************************************/ |
714 | sighandler (int signum) |
|
|
715 | { |
|
|
716 | #if _WIN32 |
|
|
717 | signal (signum, sighandler); |
|
|
718 | #endif |
|
|
719 | |
|
|
720 | signals [signum - 1].gotsig = 1; |
|
|
721 | |
|
|
722 | if (!gotsig) |
|
|
723 | { |
|
|
724 | int old_errno = errno; |
|
|
725 | gotsig = 1; |
|
|
726 | write (sigpipe [1], &signum, 1); |
|
|
727 | errno = old_errno; |
|
|
728 | } |
|
|
729 | } |
|
|
730 | |
|
|
731 | void noinline |
|
|
732 | ev_feed_signal_event (EV_P_ int signum) |
|
|
733 | { |
|
|
734 | WL w; |
|
|
735 | |
|
|
736 | #if EV_MULTIPLICITY |
|
|
737 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
738 | #endif |
|
|
739 | |
|
|
740 | --signum; |
|
|
741 | |
|
|
742 | if (signum < 0 || signum >= signalmax) |
|
|
743 | return; |
|
|
744 | |
|
|
745 | signals [signum].gotsig = 0; |
|
|
746 | |
|
|
747 | for (w = signals [signum].head; w; w = w->next) |
|
|
748 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
749 | } |
|
|
750 | |
|
|
751 | static void |
|
|
752 | sigcb (EV_P_ ev_io *iow, int revents) |
|
|
753 | { |
|
|
754 | int signum; |
|
|
755 | |
|
|
756 | read (sigpipe [0], &revents, 1); |
|
|
757 | gotsig = 0; |
|
|
758 | |
|
|
759 | for (signum = signalmax; signum--; ) |
|
|
760 | if (signals [signum].gotsig) |
|
|
761 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
762 | } |
|
|
763 | |
958 | |
764 | void inline_speed |
959 | void inline_speed |
765 | fd_intern (int fd) |
960 | fd_intern (int fd) |
766 | { |
961 | { |
767 | #ifdef _WIN32 |
962 | #ifdef _WIN32 |
… | |
… | |
772 | fcntl (fd, F_SETFL, O_NONBLOCK); |
967 | fcntl (fd, F_SETFL, O_NONBLOCK); |
773 | #endif |
968 | #endif |
774 | } |
969 | } |
775 | |
970 | |
776 | static void noinline |
971 | static void noinline |
777 | siginit (EV_P) |
972 | evpipe_init (EV_P) |
778 | { |
973 | { |
|
|
974 | if (!ev_is_active (&pipeev)) |
|
|
975 | { |
|
|
976 | #if EV_USE_EVENTFD |
|
|
977 | if ((evfd = eventfd (0, 0)) >= 0) |
|
|
978 | { |
|
|
979 | evpipe [0] = -1; |
|
|
980 | fd_intern (evfd); |
|
|
981 | ev_io_set (&pipeev, evfd, EV_READ); |
|
|
982 | } |
|
|
983 | else |
|
|
984 | #endif |
|
|
985 | { |
|
|
986 | while (pipe (evpipe)) |
|
|
987 | syserr ("(libev) error creating signal/async pipe"); |
|
|
988 | |
779 | fd_intern (sigpipe [0]); |
989 | fd_intern (evpipe [0]); |
780 | fd_intern (sigpipe [1]); |
990 | fd_intern (evpipe [1]); |
|
|
991 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
|
|
992 | } |
781 | |
993 | |
782 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
|
|
783 | ev_io_start (EV_A_ &sigev); |
994 | ev_io_start (EV_A_ &pipeev); |
784 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
995 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
996 | } |
|
|
997 | } |
|
|
998 | |
|
|
999 | void inline_size |
|
|
1000 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1001 | { |
|
|
1002 | if (!*flag) |
|
|
1003 | { |
|
|
1004 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1005 | |
|
|
1006 | *flag = 1; |
|
|
1007 | |
|
|
1008 | #if EV_USE_EVENTFD |
|
|
1009 | if (evfd >= 0) |
|
|
1010 | { |
|
|
1011 | uint64_t counter = 1; |
|
|
1012 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
1013 | } |
|
|
1014 | else |
|
|
1015 | #endif |
|
|
1016 | write (evpipe [1], &old_errno, 1); |
|
|
1017 | |
|
|
1018 | errno = old_errno; |
|
|
1019 | } |
|
|
1020 | } |
|
|
1021 | |
|
|
1022 | static void |
|
|
1023 | pipecb (EV_P_ ev_io *iow, int revents) |
|
|
1024 | { |
|
|
1025 | #if EV_USE_EVENTFD |
|
|
1026 | if (evfd >= 0) |
|
|
1027 | { |
|
|
1028 | uint64_t counter; |
|
|
1029 | read (evfd, &counter, sizeof (uint64_t)); |
|
|
1030 | } |
|
|
1031 | else |
|
|
1032 | #endif |
|
|
1033 | { |
|
|
1034 | char dummy; |
|
|
1035 | read (evpipe [0], &dummy, 1); |
|
|
1036 | } |
|
|
1037 | |
|
|
1038 | if (gotsig && ev_is_default_loop (EV_A)) |
|
|
1039 | { |
|
|
1040 | int signum; |
|
|
1041 | gotsig = 0; |
|
|
1042 | |
|
|
1043 | for (signum = signalmax; signum--; ) |
|
|
1044 | if (signals [signum].gotsig) |
|
|
1045 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
1046 | } |
|
|
1047 | |
|
|
1048 | #if EV_ASYNC_ENABLE |
|
|
1049 | if (gotasync) |
|
|
1050 | { |
|
|
1051 | int i; |
|
|
1052 | gotasync = 0; |
|
|
1053 | |
|
|
1054 | for (i = asynccnt; i--; ) |
|
|
1055 | if (asyncs [i]->sent) |
|
|
1056 | { |
|
|
1057 | asyncs [i]->sent = 0; |
|
|
1058 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
|
|
1059 | } |
|
|
1060 | } |
|
|
1061 | #endif |
785 | } |
1062 | } |
786 | |
1063 | |
787 | /*****************************************************************************/ |
1064 | /*****************************************************************************/ |
788 | |
1065 | |
|
|
1066 | static void |
|
|
1067 | ev_sighandler (int signum) |
|
|
1068 | { |
|
|
1069 | #if EV_MULTIPLICITY |
|
|
1070 | struct ev_loop *loop = &default_loop_struct; |
|
|
1071 | #endif |
|
|
1072 | |
|
|
1073 | #if _WIN32 |
|
|
1074 | signal (signum, ev_sighandler); |
|
|
1075 | #endif |
|
|
1076 | |
|
|
1077 | signals [signum - 1].gotsig = 1; |
|
|
1078 | evpipe_write (EV_A_ &gotsig); |
|
|
1079 | } |
|
|
1080 | |
|
|
1081 | void noinline |
|
|
1082 | ev_feed_signal_event (EV_P_ int signum) |
|
|
1083 | { |
|
|
1084 | WL w; |
|
|
1085 | |
|
|
1086 | #if EV_MULTIPLICITY |
|
|
1087 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1088 | #endif |
|
|
1089 | |
|
|
1090 | --signum; |
|
|
1091 | |
|
|
1092 | if (signum < 0 || signum >= signalmax) |
|
|
1093 | return; |
|
|
1094 | |
|
|
1095 | signals [signum].gotsig = 0; |
|
|
1096 | |
|
|
1097 | for (w = signals [signum].head; w; w = w->next) |
|
|
1098 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
1099 | } |
|
|
1100 | |
|
|
1101 | /*****************************************************************************/ |
|
|
1102 | |
789 | static ev_child *childs [EV_PID_HASHSIZE]; |
1103 | static WL childs [EV_PID_HASHSIZE]; |
790 | |
1104 | |
791 | #ifndef _WIN32 |
1105 | #ifndef _WIN32 |
792 | |
1106 | |
793 | static ev_signal childev; |
1107 | static ev_signal childev; |
794 | |
1108 | |
|
|
1109 | #ifndef WIFCONTINUED |
|
|
1110 | # define WIFCONTINUED(status) 0 |
|
|
1111 | #endif |
|
|
1112 | |
795 | void inline_speed |
1113 | void inline_speed |
796 | child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) |
1114 | child_reap (EV_P_ int chain, int pid, int status) |
797 | { |
1115 | { |
798 | ev_child *w; |
1116 | ev_child *w; |
|
|
1117 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
799 | |
1118 | |
800 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1119 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1120 | { |
801 | if (w->pid == pid || !w->pid) |
1121 | if ((w->pid == pid || !w->pid) |
|
|
1122 | && (!traced || (w->flags & 1))) |
802 | { |
1123 | { |
803 | ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */ |
1124 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
804 | w->rpid = pid; |
1125 | w->rpid = pid; |
805 | w->rstatus = status; |
1126 | w->rstatus = status; |
806 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
1127 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
807 | } |
1128 | } |
|
|
1129 | } |
808 | } |
1130 | } |
809 | |
1131 | |
810 | #ifndef WCONTINUED |
1132 | #ifndef WCONTINUED |
811 | # define WCONTINUED 0 |
1133 | # define WCONTINUED 0 |
812 | #endif |
1134 | #endif |
… | |
… | |
821 | if (!WCONTINUED |
1143 | if (!WCONTINUED |
822 | || errno != EINVAL |
1144 | || errno != EINVAL |
823 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
1145 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
824 | return; |
1146 | return; |
825 | |
1147 | |
826 | /* make sure we are called again until all childs have been reaped */ |
1148 | /* make sure we are called again until all children have been reaped */ |
827 | /* we need to do it this way so that the callback gets called before we continue */ |
1149 | /* we need to do it this way so that the callback gets called before we continue */ |
828 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1150 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
829 | |
1151 | |
830 | child_reap (EV_A_ sw, pid, pid, status); |
1152 | child_reap (EV_A_ pid, pid, status); |
831 | if (EV_PID_HASHSIZE > 1) |
1153 | if (EV_PID_HASHSIZE > 1) |
832 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1154 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
833 | } |
1155 | } |
834 | |
1156 | |
835 | #endif |
1157 | #endif |
836 | |
1158 | |
837 | /*****************************************************************************/ |
1159 | /*****************************************************************************/ |
… | |
… | |
909 | } |
1231 | } |
910 | |
1232 | |
911 | unsigned int |
1233 | unsigned int |
912 | ev_embeddable_backends (void) |
1234 | ev_embeddable_backends (void) |
913 | { |
1235 | { |
914 | return EVBACKEND_EPOLL |
1236 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
915 | | EVBACKEND_KQUEUE |
1237 | |
916 | | EVBACKEND_PORT; |
1238 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
|
|
1239 | /* please fix it and tell me how to detect the fix */ |
|
|
1240 | flags &= ~EVBACKEND_EPOLL; |
|
|
1241 | |
|
|
1242 | return flags; |
917 | } |
1243 | } |
918 | |
1244 | |
919 | unsigned int |
1245 | unsigned int |
920 | ev_backend (EV_P) |
1246 | ev_backend (EV_P) |
921 | { |
1247 | { |
… | |
… | |
924 | |
1250 | |
925 | unsigned int |
1251 | unsigned int |
926 | ev_loop_count (EV_P) |
1252 | ev_loop_count (EV_P) |
927 | { |
1253 | { |
928 | return loop_count; |
1254 | return loop_count; |
|
|
1255 | } |
|
|
1256 | |
|
|
1257 | void |
|
|
1258 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1259 | { |
|
|
1260 | io_blocktime = interval; |
|
|
1261 | } |
|
|
1262 | |
|
|
1263 | void |
|
|
1264 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1265 | { |
|
|
1266 | timeout_blocktime = interval; |
929 | } |
1267 | } |
930 | |
1268 | |
931 | static void noinline |
1269 | static void noinline |
932 | loop_init (EV_P_ unsigned int flags) |
1270 | loop_init (EV_P_ unsigned int flags) |
933 | { |
1271 | { |
… | |
… | |
939 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1277 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
940 | have_monotonic = 1; |
1278 | have_monotonic = 1; |
941 | } |
1279 | } |
942 | #endif |
1280 | #endif |
943 | |
1281 | |
944 | ev_rt_now = ev_time (); |
1282 | ev_rt_now = ev_time (); |
945 | mn_now = get_clock (); |
1283 | mn_now = get_clock (); |
946 | now_floor = mn_now; |
1284 | now_floor = mn_now; |
947 | rtmn_diff = ev_rt_now - mn_now; |
1285 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1286 | |
|
|
1287 | io_blocktime = 0.; |
|
|
1288 | timeout_blocktime = 0.; |
|
|
1289 | backend = 0; |
|
|
1290 | backend_fd = -1; |
|
|
1291 | gotasync = 0; |
|
|
1292 | #if EV_USE_INOTIFY |
|
|
1293 | fs_fd = -2; |
|
|
1294 | #endif |
948 | |
1295 | |
949 | /* pid check not overridable via env */ |
1296 | /* pid check not overridable via env */ |
950 | #ifndef _WIN32 |
1297 | #ifndef _WIN32 |
951 | if (flags & EVFLAG_FORKCHECK) |
1298 | if (flags & EVFLAG_FORKCHECK) |
952 | curpid = getpid (); |
1299 | curpid = getpid (); |
… | |
… | |
955 | if (!(flags & EVFLAG_NOENV) |
1302 | if (!(flags & EVFLAG_NOENV) |
956 | && !enable_secure () |
1303 | && !enable_secure () |
957 | && getenv ("LIBEV_FLAGS")) |
1304 | && getenv ("LIBEV_FLAGS")) |
958 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1305 | flags = atoi (getenv ("LIBEV_FLAGS")); |
959 | |
1306 | |
960 | if (!(flags & 0x0000ffffUL)) |
1307 | if (!(flags & 0x0000ffffU)) |
961 | flags |= ev_recommended_backends (); |
1308 | flags |= ev_recommended_backends (); |
962 | |
|
|
963 | backend = 0; |
|
|
964 | backend_fd = -1; |
|
|
965 | #if EV_USE_INOTIFY |
|
|
966 | fs_fd = -2; |
|
|
967 | #endif |
|
|
968 | |
1309 | |
969 | #if EV_USE_PORT |
1310 | #if EV_USE_PORT |
970 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1311 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
971 | #endif |
1312 | #endif |
972 | #if EV_USE_KQUEUE |
1313 | #if EV_USE_KQUEUE |
… | |
… | |
980 | #endif |
1321 | #endif |
981 | #if EV_USE_SELECT |
1322 | #if EV_USE_SELECT |
982 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1323 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
983 | #endif |
1324 | #endif |
984 | |
1325 | |
985 | ev_init (&sigev, sigcb); |
1326 | ev_init (&pipeev, pipecb); |
986 | ev_set_priority (&sigev, EV_MAXPRI); |
1327 | ev_set_priority (&pipeev, EV_MAXPRI); |
987 | } |
1328 | } |
988 | } |
1329 | } |
989 | |
1330 | |
990 | static void noinline |
1331 | static void noinline |
991 | loop_destroy (EV_P) |
1332 | loop_destroy (EV_P) |
992 | { |
1333 | { |
993 | int i; |
1334 | int i; |
|
|
1335 | |
|
|
1336 | if (ev_is_active (&pipeev)) |
|
|
1337 | { |
|
|
1338 | ev_ref (EV_A); /* signal watcher */ |
|
|
1339 | ev_io_stop (EV_A_ &pipeev); |
|
|
1340 | |
|
|
1341 | #if EV_USE_EVENTFD |
|
|
1342 | if (evfd >= 0) |
|
|
1343 | close (evfd); |
|
|
1344 | #endif |
|
|
1345 | |
|
|
1346 | if (evpipe [0] >= 0) |
|
|
1347 | { |
|
|
1348 | close (evpipe [0]); |
|
|
1349 | close (evpipe [1]); |
|
|
1350 | } |
|
|
1351 | } |
994 | |
1352 | |
995 | #if EV_USE_INOTIFY |
1353 | #if EV_USE_INOTIFY |
996 | if (fs_fd >= 0) |
1354 | if (fs_fd >= 0) |
997 | close (fs_fd); |
1355 | close (fs_fd); |
998 | #endif |
1356 | #endif |
… | |
… | |
1021 | array_free (pending, [i]); |
1379 | array_free (pending, [i]); |
1022 | #if EV_IDLE_ENABLE |
1380 | #if EV_IDLE_ENABLE |
1023 | array_free (idle, [i]); |
1381 | array_free (idle, [i]); |
1024 | #endif |
1382 | #endif |
1025 | } |
1383 | } |
|
|
1384 | |
|
|
1385 | ev_free (anfds); anfdmax = 0; |
1026 | |
1386 | |
1027 | /* have to use the microsoft-never-gets-it-right macro */ |
1387 | /* have to use the microsoft-never-gets-it-right macro */ |
1028 | array_free (fdchange, EMPTY); |
1388 | array_free (fdchange, EMPTY); |
1029 | array_free (timer, EMPTY); |
1389 | array_free (timer, EMPTY); |
1030 | #if EV_PERIODIC_ENABLE |
1390 | #if EV_PERIODIC_ENABLE |
1031 | array_free (periodic, EMPTY); |
1391 | array_free (periodic, EMPTY); |
1032 | #endif |
1392 | #endif |
|
|
1393 | #if EV_FORK_ENABLE |
|
|
1394 | array_free (fork, EMPTY); |
|
|
1395 | #endif |
1033 | array_free (prepare, EMPTY); |
1396 | array_free (prepare, EMPTY); |
1034 | array_free (check, EMPTY); |
1397 | array_free (check, EMPTY); |
|
|
1398 | #if EV_ASYNC_ENABLE |
|
|
1399 | array_free (async, EMPTY); |
|
|
1400 | #endif |
1035 | |
1401 | |
1036 | backend = 0; |
1402 | backend = 0; |
1037 | } |
1403 | } |
1038 | |
1404 | |
|
|
1405 | #if EV_USE_INOTIFY |
1039 | void inline_size infy_fork (EV_P); |
1406 | void inline_size infy_fork (EV_P); |
|
|
1407 | #endif |
1040 | |
1408 | |
1041 | void inline_size |
1409 | void inline_size |
1042 | loop_fork (EV_P) |
1410 | loop_fork (EV_P) |
1043 | { |
1411 | { |
1044 | #if EV_USE_PORT |
1412 | #if EV_USE_PORT |
… | |
… | |
1052 | #endif |
1420 | #endif |
1053 | #if EV_USE_INOTIFY |
1421 | #if EV_USE_INOTIFY |
1054 | infy_fork (EV_A); |
1422 | infy_fork (EV_A); |
1055 | #endif |
1423 | #endif |
1056 | |
1424 | |
1057 | if (ev_is_active (&sigev)) |
1425 | if (ev_is_active (&pipeev)) |
1058 | { |
1426 | { |
1059 | /* default loop */ |
1427 | /* this "locks" the handlers against writing to the pipe */ |
|
|
1428 | /* while we modify the fd vars */ |
|
|
1429 | gotsig = 1; |
|
|
1430 | #if EV_ASYNC_ENABLE |
|
|
1431 | gotasync = 1; |
|
|
1432 | #endif |
1060 | |
1433 | |
1061 | ev_ref (EV_A); |
1434 | ev_ref (EV_A); |
1062 | ev_io_stop (EV_A_ &sigev); |
1435 | ev_io_stop (EV_A_ &pipeev); |
|
|
1436 | |
|
|
1437 | #if EV_USE_EVENTFD |
|
|
1438 | if (evfd >= 0) |
|
|
1439 | close (evfd); |
|
|
1440 | #endif |
|
|
1441 | |
|
|
1442 | if (evpipe [0] >= 0) |
|
|
1443 | { |
1063 | close (sigpipe [0]); |
1444 | close (evpipe [0]); |
1064 | close (sigpipe [1]); |
1445 | close (evpipe [1]); |
|
|
1446 | } |
1065 | |
1447 | |
1066 | while (pipe (sigpipe)) |
|
|
1067 | syserr ("(libev) error creating pipe"); |
|
|
1068 | |
|
|
1069 | siginit (EV_A); |
1448 | evpipe_init (EV_A); |
|
|
1449 | /* now iterate over everything, in case we missed something */ |
|
|
1450 | pipecb (EV_A_ &pipeev, EV_READ); |
1070 | } |
1451 | } |
1071 | |
1452 | |
1072 | postfork = 0; |
1453 | postfork = 0; |
1073 | } |
1454 | } |
1074 | |
1455 | |
… | |
… | |
1096 | } |
1477 | } |
1097 | |
1478 | |
1098 | void |
1479 | void |
1099 | ev_loop_fork (EV_P) |
1480 | ev_loop_fork (EV_P) |
1100 | { |
1481 | { |
1101 | postfork = 1; |
1482 | postfork = 1; /* must be in line with ev_default_fork */ |
1102 | } |
1483 | } |
1103 | |
|
|
1104 | #endif |
1484 | #endif |
1105 | |
1485 | |
1106 | #if EV_MULTIPLICITY |
1486 | #if EV_MULTIPLICITY |
1107 | struct ev_loop * |
1487 | struct ev_loop * |
1108 | ev_default_loop_init (unsigned int flags) |
1488 | ev_default_loop_init (unsigned int flags) |
1109 | #else |
1489 | #else |
1110 | int |
1490 | int |
1111 | ev_default_loop (unsigned int flags) |
1491 | ev_default_loop (unsigned int flags) |
1112 | #endif |
1492 | #endif |
1113 | { |
1493 | { |
1114 | if (sigpipe [0] == sigpipe [1]) |
|
|
1115 | if (pipe (sigpipe)) |
|
|
1116 | return 0; |
|
|
1117 | |
|
|
1118 | if (!ev_default_loop_ptr) |
1494 | if (!ev_default_loop_ptr) |
1119 | { |
1495 | { |
1120 | #if EV_MULTIPLICITY |
1496 | #if EV_MULTIPLICITY |
1121 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1497 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1122 | #else |
1498 | #else |
… | |
… | |
1125 | |
1501 | |
1126 | loop_init (EV_A_ flags); |
1502 | loop_init (EV_A_ flags); |
1127 | |
1503 | |
1128 | if (ev_backend (EV_A)) |
1504 | if (ev_backend (EV_A)) |
1129 | { |
1505 | { |
1130 | siginit (EV_A); |
|
|
1131 | |
|
|
1132 | #ifndef _WIN32 |
1506 | #ifndef _WIN32 |
1133 | ev_signal_init (&childev, childcb, SIGCHLD); |
1507 | ev_signal_init (&childev, childcb, SIGCHLD); |
1134 | ev_set_priority (&childev, EV_MAXPRI); |
1508 | ev_set_priority (&childev, EV_MAXPRI); |
1135 | ev_signal_start (EV_A_ &childev); |
1509 | ev_signal_start (EV_A_ &childev); |
1136 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1510 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
… | |
… | |
1153 | #ifndef _WIN32 |
1527 | #ifndef _WIN32 |
1154 | ev_ref (EV_A); /* child watcher */ |
1528 | ev_ref (EV_A); /* child watcher */ |
1155 | ev_signal_stop (EV_A_ &childev); |
1529 | ev_signal_stop (EV_A_ &childev); |
1156 | #endif |
1530 | #endif |
1157 | |
1531 | |
1158 | ev_ref (EV_A); /* signal watcher */ |
|
|
1159 | ev_io_stop (EV_A_ &sigev); |
|
|
1160 | |
|
|
1161 | close (sigpipe [0]); sigpipe [0] = 0; |
|
|
1162 | close (sigpipe [1]); sigpipe [1] = 0; |
|
|
1163 | |
|
|
1164 | loop_destroy (EV_A); |
1532 | loop_destroy (EV_A); |
1165 | } |
1533 | } |
1166 | |
1534 | |
1167 | void |
1535 | void |
1168 | ev_default_fork (void) |
1536 | ev_default_fork (void) |
… | |
… | |
1170 | #if EV_MULTIPLICITY |
1538 | #if EV_MULTIPLICITY |
1171 | struct ev_loop *loop = ev_default_loop_ptr; |
1539 | struct ev_loop *loop = ev_default_loop_ptr; |
1172 | #endif |
1540 | #endif |
1173 | |
1541 | |
1174 | if (backend) |
1542 | if (backend) |
1175 | postfork = 1; |
1543 | postfork = 1; /* must be in line with ev_loop_fork */ |
1176 | } |
1544 | } |
1177 | |
1545 | |
1178 | /*****************************************************************************/ |
1546 | /*****************************************************************************/ |
1179 | |
1547 | |
1180 | void |
1548 | void |
… | |
… | |
1200 | p->w->pending = 0; |
1568 | p->w->pending = 0; |
1201 | EV_CB_INVOKE (p->w, p->events); |
1569 | EV_CB_INVOKE (p->w, p->events); |
1202 | } |
1570 | } |
1203 | } |
1571 | } |
1204 | } |
1572 | } |
1205 | |
|
|
1206 | void inline_size |
|
|
1207 | timers_reify (EV_P) |
|
|
1208 | { |
|
|
1209 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
|
|
1210 | { |
|
|
1211 | ev_timer *w = timers [0]; |
|
|
1212 | |
|
|
1213 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1214 | |
|
|
1215 | /* first reschedule or stop timer */ |
|
|
1216 | if (w->repeat) |
|
|
1217 | { |
|
|
1218 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1219 | |
|
|
1220 | ((WT)w)->at += w->repeat; |
|
|
1221 | if (((WT)w)->at < mn_now) |
|
|
1222 | ((WT)w)->at = mn_now; |
|
|
1223 | |
|
|
1224 | downheap ((WT *)timers, timercnt, 0); |
|
|
1225 | } |
|
|
1226 | else |
|
|
1227 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1228 | |
|
|
1229 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
|
|
1230 | } |
|
|
1231 | } |
|
|
1232 | |
|
|
1233 | #if EV_PERIODIC_ENABLE |
|
|
1234 | void inline_size |
|
|
1235 | periodics_reify (EV_P) |
|
|
1236 | { |
|
|
1237 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
|
|
1238 | { |
|
|
1239 | ev_periodic *w = periodics [0]; |
|
|
1240 | |
|
|
1241 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
1242 | |
|
|
1243 | /* first reschedule or stop timer */ |
|
|
1244 | if (w->reschedule_cb) |
|
|
1245 | { |
|
|
1246 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); |
|
|
1247 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
|
|
1248 | downheap ((WT *)periodics, periodiccnt, 0); |
|
|
1249 | } |
|
|
1250 | else if (w->interval) |
|
|
1251 | { |
|
|
1252 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1253 | if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval; |
|
|
1254 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
|
|
1255 | downheap ((WT *)periodics, periodiccnt, 0); |
|
|
1256 | } |
|
|
1257 | else |
|
|
1258 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1259 | |
|
|
1260 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
|
|
1261 | } |
|
|
1262 | } |
|
|
1263 | |
|
|
1264 | static void noinline |
|
|
1265 | periodics_reschedule (EV_P) |
|
|
1266 | { |
|
|
1267 | int i; |
|
|
1268 | |
|
|
1269 | /* adjust periodics after time jump */ |
|
|
1270 | for (i = 0; i < periodiccnt; ++i) |
|
|
1271 | { |
|
|
1272 | ev_periodic *w = periodics [i]; |
|
|
1273 | |
|
|
1274 | if (w->reschedule_cb) |
|
|
1275 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
|
|
1276 | else if (w->interval) |
|
|
1277 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1278 | } |
|
|
1279 | |
|
|
1280 | /* now rebuild the heap */ |
|
|
1281 | for (i = periodiccnt >> 1; i--; ) |
|
|
1282 | downheap ((WT *)periodics, periodiccnt, i); |
|
|
1283 | } |
|
|
1284 | #endif |
|
|
1285 | |
1573 | |
1286 | #if EV_IDLE_ENABLE |
1574 | #if EV_IDLE_ENABLE |
1287 | void inline_size |
1575 | void inline_size |
1288 | idle_reify (EV_P) |
1576 | idle_reify (EV_P) |
1289 | { |
1577 | { |
… | |
… | |
1301 | queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE); |
1589 | queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE); |
1302 | break; |
1590 | break; |
1303 | } |
1591 | } |
1304 | } |
1592 | } |
1305 | } |
1593 | } |
|
|
1594 | } |
|
|
1595 | #endif |
|
|
1596 | |
|
|
1597 | void inline_size |
|
|
1598 | timers_reify (EV_P) |
|
|
1599 | { |
|
|
1600 | while (timercnt && ANHE_at (timers [HEAP0]) <= mn_now) |
|
|
1601 | { |
|
|
1602 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
|
|
1603 | |
|
|
1604 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1605 | |
|
|
1606 | /* first reschedule or stop timer */ |
|
|
1607 | if (w->repeat) |
|
|
1608 | { |
|
|
1609 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1610 | |
|
|
1611 | ev_at (w) += w->repeat; |
|
|
1612 | if (ev_at (w) < mn_now) |
|
|
1613 | ev_at (w) = mn_now; |
|
|
1614 | |
|
|
1615 | ANHE_at_set (timers [HEAP0]); |
|
|
1616 | downheap (timers, timercnt, HEAP0); |
|
|
1617 | } |
|
|
1618 | else |
|
|
1619 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1620 | |
|
|
1621 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
|
|
1622 | } |
|
|
1623 | } |
|
|
1624 | |
|
|
1625 | #if EV_PERIODIC_ENABLE |
|
|
1626 | void inline_size |
|
|
1627 | periodics_reify (EV_P) |
|
|
1628 | { |
|
|
1629 | while (periodiccnt && ANHE_at (periodics [HEAP0]) <= ev_rt_now) |
|
|
1630 | { |
|
|
1631 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
|
|
1632 | |
|
|
1633 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
1634 | |
|
|
1635 | /* first reschedule or stop timer */ |
|
|
1636 | if (w->reschedule_cb) |
|
|
1637 | { |
|
|
1638 | ev_at (w) = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); |
|
|
1639 | assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) > ev_rt_now)); |
|
|
1640 | ANHE_at_set (periodics [HEAP0]); |
|
|
1641 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1642 | } |
|
|
1643 | else if (w->interval) |
|
|
1644 | { |
|
|
1645 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1646 | if (ev_at (w) - ev_rt_now <= TIME_EPSILON) ev_at (w) += w->interval; |
|
|
1647 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ev_at (w) > ev_rt_now)); |
|
|
1648 | ANHE_at_set (periodics [HEAP0]); |
|
|
1649 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1650 | } |
|
|
1651 | else |
|
|
1652 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1653 | |
|
|
1654 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
|
|
1655 | } |
|
|
1656 | } |
|
|
1657 | |
|
|
1658 | static void noinline |
|
|
1659 | periodics_reschedule (EV_P) |
|
|
1660 | { |
|
|
1661 | int i; |
|
|
1662 | |
|
|
1663 | /* adjust periodics after time jump */ |
|
|
1664 | for (i = HEAP0; i < periodiccnt + HEAP0; ++i) |
|
|
1665 | { |
|
|
1666 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
|
|
1667 | |
|
|
1668 | if (w->reschedule_cb) |
|
|
1669 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
1670 | else if (w->interval) |
|
|
1671 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1672 | |
|
|
1673 | ANHE_at_set (periodics [i]); |
|
|
1674 | } |
|
|
1675 | |
|
|
1676 | /* now rebuild the heap, this for the 2-heap, inefficient for the 4-heap, but correct */ |
|
|
1677 | for (i = periodiccnt >> 1; --i; ) |
|
|
1678 | downheap (periodics, periodiccnt, i + HEAP0); |
1306 | } |
1679 | } |
1307 | #endif |
1680 | #endif |
1308 | |
1681 | |
1309 | void inline_speed |
1682 | void inline_speed |
1310 | time_update (EV_P_ ev_tstamp max_block) |
1683 | time_update (EV_P_ ev_tstamp max_block) |
… | |
… | |
1339 | */ |
1712 | */ |
1340 | for (i = 4; --i; ) |
1713 | for (i = 4; --i; ) |
1341 | { |
1714 | { |
1342 | rtmn_diff = ev_rt_now - mn_now; |
1715 | rtmn_diff = ev_rt_now - mn_now; |
1343 | |
1716 | |
1344 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1717 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
1345 | return; /* all is well */ |
1718 | return; /* all is well */ |
1346 | |
1719 | |
1347 | ev_rt_now = ev_time (); |
1720 | ev_rt_now = ev_time (); |
1348 | mn_now = get_clock (); |
1721 | mn_now = get_clock (); |
1349 | now_floor = mn_now; |
1722 | now_floor = mn_now; |
… | |
… | |
1365 | #if EV_PERIODIC_ENABLE |
1738 | #if EV_PERIODIC_ENABLE |
1366 | periodics_reschedule (EV_A); |
1739 | periodics_reschedule (EV_A); |
1367 | #endif |
1740 | #endif |
1368 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
1741 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
1369 | for (i = 0; i < timercnt; ++i) |
1742 | for (i = 0; i < timercnt; ++i) |
|
|
1743 | { |
|
|
1744 | ANHE *he = timers + i + HEAP0; |
1370 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
1745 | ANHE_w (*he)->at += ev_rt_now - mn_now; |
|
|
1746 | ANHE_at_set (*he); |
|
|
1747 | } |
1371 | } |
1748 | } |
1372 | |
1749 | |
1373 | mn_now = ev_rt_now; |
1750 | mn_now = ev_rt_now; |
1374 | } |
1751 | } |
1375 | } |
1752 | } |
… | |
… | |
1389 | static int loop_done; |
1766 | static int loop_done; |
1390 | |
1767 | |
1391 | void |
1768 | void |
1392 | ev_loop (EV_P_ int flags) |
1769 | ev_loop (EV_P_ int flags) |
1393 | { |
1770 | { |
1394 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) |
1771 | loop_done = EVUNLOOP_CANCEL; |
1395 | ? EVUNLOOP_ONE |
|
|
1396 | : EVUNLOOP_CANCEL; |
|
|
1397 | |
1772 | |
1398 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
1773 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
1399 | |
1774 | |
1400 | do |
1775 | do |
1401 | { |
1776 | { |
… | |
… | |
1435 | /* update fd-related kernel structures */ |
1810 | /* update fd-related kernel structures */ |
1436 | fd_reify (EV_A); |
1811 | fd_reify (EV_A); |
1437 | |
1812 | |
1438 | /* calculate blocking time */ |
1813 | /* calculate blocking time */ |
1439 | { |
1814 | { |
1440 | ev_tstamp block; |
1815 | ev_tstamp waittime = 0.; |
|
|
1816 | ev_tstamp sleeptime = 0.; |
1441 | |
1817 | |
1442 | if (expect_false (flags & EVLOOP_NONBLOCK || idleall || !activecnt)) |
1818 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
1443 | block = 0.; /* do not block at all */ |
|
|
1444 | else |
|
|
1445 | { |
1819 | { |
1446 | /* update time to cancel out callback processing overhead */ |
1820 | /* update time to cancel out callback processing overhead */ |
1447 | time_update (EV_A_ 1e100); |
1821 | time_update (EV_A_ 1e100); |
1448 | |
1822 | |
1449 | block = MAX_BLOCKTIME; |
1823 | waittime = MAX_BLOCKTIME; |
1450 | |
1824 | |
1451 | if (timercnt) |
1825 | if (timercnt) |
1452 | { |
1826 | { |
1453 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
1827 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
1454 | if (block > to) block = to; |
1828 | if (waittime > to) waittime = to; |
1455 | } |
1829 | } |
1456 | |
1830 | |
1457 | #if EV_PERIODIC_ENABLE |
1831 | #if EV_PERIODIC_ENABLE |
1458 | if (periodiccnt) |
1832 | if (periodiccnt) |
1459 | { |
1833 | { |
1460 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
1834 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
1461 | if (block > to) block = to; |
1835 | if (waittime > to) waittime = to; |
1462 | } |
1836 | } |
1463 | #endif |
1837 | #endif |
1464 | |
1838 | |
1465 | if (expect_false (block < 0.)) block = 0.; |
1839 | if (expect_false (waittime < timeout_blocktime)) |
|
|
1840 | waittime = timeout_blocktime; |
|
|
1841 | |
|
|
1842 | sleeptime = waittime - backend_fudge; |
|
|
1843 | |
|
|
1844 | if (expect_true (sleeptime > io_blocktime)) |
|
|
1845 | sleeptime = io_blocktime; |
|
|
1846 | |
|
|
1847 | if (sleeptime) |
|
|
1848 | { |
|
|
1849 | ev_sleep (sleeptime); |
|
|
1850 | waittime -= sleeptime; |
|
|
1851 | } |
1466 | } |
1852 | } |
1467 | |
1853 | |
1468 | ++loop_count; |
1854 | ++loop_count; |
1469 | backend_poll (EV_A_ block); |
1855 | backend_poll (EV_A_ waittime); |
1470 | |
1856 | |
1471 | /* update ev_rt_now, do magic */ |
1857 | /* update ev_rt_now, do magic */ |
1472 | time_update (EV_A_ block); |
1858 | time_update (EV_A_ waittime + sleeptime); |
1473 | } |
1859 | } |
1474 | |
1860 | |
1475 | /* queue pending timers and reschedule them */ |
1861 | /* queue pending timers and reschedule them */ |
1476 | timers_reify (EV_A); /* relative timers called last */ |
1862 | timers_reify (EV_A); /* relative timers called last */ |
1477 | #if EV_PERIODIC_ENABLE |
1863 | #if EV_PERIODIC_ENABLE |
… | |
… | |
1486 | /* queue check watchers, to be executed first */ |
1872 | /* queue check watchers, to be executed first */ |
1487 | if (expect_false (checkcnt)) |
1873 | if (expect_false (checkcnt)) |
1488 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1874 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1489 | |
1875 | |
1490 | call_pending (EV_A); |
1876 | call_pending (EV_A); |
1491 | |
|
|
1492 | } |
1877 | } |
1493 | while (expect_true (activecnt && !loop_done)); |
1878 | while (expect_true ( |
|
|
1879 | activecnt |
|
|
1880 | && !loop_done |
|
|
1881 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
|
|
1882 | )); |
1494 | |
1883 | |
1495 | if (loop_done == EVUNLOOP_ONE) |
1884 | if (loop_done == EVUNLOOP_ONE) |
1496 | loop_done = EVUNLOOP_CANCEL; |
1885 | loop_done = EVUNLOOP_CANCEL; |
1497 | } |
1886 | } |
1498 | |
1887 | |
… | |
… | |
1589 | |
1978 | |
1590 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1979 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1591 | |
1980 | |
1592 | ev_start (EV_A_ (W)w, 1); |
1981 | ev_start (EV_A_ (W)w, 1); |
1593 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
1982 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
1594 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1983 | wlist_add (&anfds[fd].head, (WL)w); |
1595 | |
1984 | |
1596 | fd_change (EV_A_ fd); |
1985 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
|
|
1986 | w->events &= ~EV_IOFDSET; |
1597 | } |
1987 | } |
1598 | |
1988 | |
1599 | void noinline |
1989 | void noinline |
1600 | ev_io_stop (EV_P_ ev_io *w) |
1990 | ev_io_stop (EV_P_ ev_io *w) |
1601 | { |
1991 | { |
1602 | clear_pending (EV_A_ (W)w); |
1992 | clear_pending (EV_A_ (W)w); |
1603 | if (expect_false (!ev_is_active (w))) |
1993 | if (expect_false (!ev_is_active (w))) |
1604 | return; |
1994 | return; |
1605 | |
1995 | |
1606 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
1996 | assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
1607 | |
1997 | |
1608 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
1998 | wlist_del (&anfds[w->fd].head, (WL)w); |
1609 | ev_stop (EV_A_ (W)w); |
1999 | ev_stop (EV_A_ (W)w); |
1610 | |
2000 | |
1611 | fd_change (EV_A_ w->fd); |
2001 | fd_change (EV_A_ w->fd, 1); |
1612 | } |
2002 | } |
1613 | |
2003 | |
1614 | void noinline |
2004 | void noinline |
1615 | ev_timer_start (EV_P_ ev_timer *w) |
2005 | ev_timer_start (EV_P_ ev_timer *w) |
1616 | { |
2006 | { |
1617 | if (expect_false (ev_is_active (w))) |
2007 | if (expect_false (ev_is_active (w))) |
1618 | return; |
2008 | return; |
1619 | |
2009 | |
1620 | ((WT)w)->at += mn_now; |
2010 | ev_at (w) += mn_now; |
1621 | |
2011 | |
1622 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2012 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1623 | |
2013 | |
1624 | ev_start (EV_A_ (W)w, ++timercnt); |
2014 | ev_start (EV_A_ (W)w, ++timercnt + HEAP0 - 1); |
1625 | array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2); |
2015 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
1626 | timers [timercnt - 1] = w; |
2016 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
1627 | upheap ((WT *)timers, timercnt - 1); |
2017 | ANHE_at_set (timers [ev_active (w)]); |
|
|
2018 | upheap (timers, ev_active (w)); |
1628 | |
2019 | |
1629 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
2020 | /*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
1630 | } |
2021 | } |
1631 | |
2022 | |
1632 | void noinline |
2023 | void noinline |
1633 | ev_timer_stop (EV_P_ ev_timer *w) |
2024 | ev_timer_stop (EV_P_ ev_timer *w) |
1634 | { |
2025 | { |
1635 | clear_pending (EV_A_ (W)w); |
2026 | clear_pending (EV_A_ (W)w); |
1636 | if (expect_false (!ev_is_active (w))) |
2027 | if (expect_false (!ev_is_active (w))) |
1637 | return; |
2028 | return; |
1638 | |
2029 | |
1639 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
|
|
1640 | |
|
|
1641 | { |
2030 | { |
1642 | int active = ((W)w)->active; |
2031 | int active = ev_active (w); |
1643 | |
2032 | |
|
|
2033 | assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
|
|
2034 | |
1644 | if (expect_true (--active < --timercnt)) |
2035 | if (expect_true (active < timercnt + HEAP0 - 1)) |
1645 | { |
2036 | { |
1646 | timers [active] = timers [timercnt]; |
2037 | timers [active] = timers [timercnt + HEAP0 - 1]; |
1647 | adjustheap ((WT *)timers, timercnt, active); |
2038 | adjustheap (timers, timercnt, active); |
1648 | } |
2039 | } |
|
|
2040 | |
|
|
2041 | --timercnt; |
1649 | } |
2042 | } |
1650 | |
2043 | |
1651 | ((WT)w)->at -= mn_now; |
2044 | ev_at (w) -= mn_now; |
1652 | |
2045 | |
1653 | ev_stop (EV_A_ (W)w); |
2046 | ev_stop (EV_A_ (W)w); |
1654 | } |
2047 | } |
1655 | |
2048 | |
1656 | void noinline |
2049 | void noinline |
… | |
… | |
1658 | { |
2051 | { |
1659 | if (ev_is_active (w)) |
2052 | if (ev_is_active (w)) |
1660 | { |
2053 | { |
1661 | if (w->repeat) |
2054 | if (w->repeat) |
1662 | { |
2055 | { |
1663 | ((WT)w)->at = mn_now + w->repeat; |
2056 | ev_at (w) = mn_now + w->repeat; |
|
|
2057 | ANHE_at_set (timers [ev_active (w)]); |
1664 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
2058 | adjustheap (timers, timercnt, ev_active (w)); |
1665 | } |
2059 | } |
1666 | else |
2060 | else |
1667 | ev_timer_stop (EV_A_ w); |
2061 | ev_timer_stop (EV_A_ w); |
1668 | } |
2062 | } |
1669 | else if (w->repeat) |
2063 | else if (w->repeat) |
1670 | { |
2064 | { |
1671 | w->at = w->repeat; |
2065 | ev_at (w) = w->repeat; |
1672 | ev_timer_start (EV_A_ w); |
2066 | ev_timer_start (EV_A_ w); |
1673 | } |
2067 | } |
1674 | } |
2068 | } |
1675 | |
2069 | |
1676 | #if EV_PERIODIC_ENABLE |
2070 | #if EV_PERIODIC_ENABLE |
… | |
… | |
1679 | { |
2073 | { |
1680 | if (expect_false (ev_is_active (w))) |
2074 | if (expect_false (ev_is_active (w))) |
1681 | return; |
2075 | return; |
1682 | |
2076 | |
1683 | if (w->reschedule_cb) |
2077 | if (w->reschedule_cb) |
1684 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
2078 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1685 | else if (w->interval) |
2079 | else if (w->interval) |
1686 | { |
2080 | { |
1687 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2081 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1688 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2082 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1689 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2083 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1690 | } |
2084 | } |
1691 | else |
2085 | else |
1692 | ((WT)w)->at = w->offset; |
2086 | ev_at (w) = w->offset; |
1693 | |
2087 | |
1694 | ev_start (EV_A_ (W)w, ++periodiccnt); |
2088 | ev_start (EV_A_ (W)w, ++periodiccnt + HEAP0 - 1); |
1695 | array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); |
2089 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
1696 | periodics [periodiccnt - 1] = w; |
2090 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
1697 | upheap ((WT *)periodics, periodiccnt - 1); |
2091 | upheap (periodics, ev_active (w)); |
1698 | |
2092 | |
1699 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
2093 | /*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
1700 | } |
2094 | } |
1701 | |
2095 | |
1702 | void noinline |
2096 | void noinline |
1703 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2097 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1704 | { |
2098 | { |
1705 | clear_pending (EV_A_ (W)w); |
2099 | clear_pending (EV_A_ (W)w); |
1706 | if (expect_false (!ev_is_active (w))) |
2100 | if (expect_false (!ev_is_active (w))) |
1707 | return; |
2101 | return; |
1708 | |
2102 | |
1709 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
|
|
1710 | |
|
|
1711 | { |
2103 | { |
1712 | int active = ((W)w)->active; |
2104 | int active = ev_active (w); |
1713 | |
2105 | |
|
|
2106 | assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
|
|
2107 | |
1714 | if (expect_true (--active < --periodiccnt)) |
2108 | if (expect_true (active < periodiccnt + HEAP0 - 1)) |
1715 | { |
2109 | { |
1716 | periodics [active] = periodics [periodiccnt]; |
2110 | periodics [active] = periodics [periodiccnt + HEAP0 - 1]; |
1717 | adjustheap ((WT *)periodics, periodiccnt, active); |
2111 | adjustheap (periodics, periodiccnt, active); |
1718 | } |
2112 | } |
|
|
2113 | |
|
|
2114 | --periodiccnt; |
1719 | } |
2115 | } |
1720 | |
2116 | |
1721 | ev_stop (EV_A_ (W)w); |
2117 | ev_stop (EV_A_ (W)w); |
1722 | } |
2118 | } |
1723 | |
2119 | |
… | |
… | |
1743 | if (expect_false (ev_is_active (w))) |
2139 | if (expect_false (ev_is_active (w))) |
1744 | return; |
2140 | return; |
1745 | |
2141 | |
1746 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2142 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1747 | |
2143 | |
|
|
2144 | evpipe_init (EV_A); |
|
|
2145 | |
|
|
2146 | { |
|
|
2147 | #ifndef _WIN32 |
|
|
2148 | sigset_t full, prev; |
|
|
2149 | sigfillset (&full); |
|
|
2150 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2151 | #endif |
|
|
2152 | |
|
|
2153 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
|
|
2154 | |
|
|
2155 | #ifndef _WIN32 |
|
|
2156 | sigprocmask (SIG_SETMASK, &prev, 0); |
|
|
2157 | #endif |
|
|
2158 | } |
|
|
2159 | |
1748 | ev_start (EV_A_ (W)w, 1); |
2160 | ev_start (EV_A_ (W)w, 1); |
1749 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
|
|
1750 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
2161 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
1751 | |
2162 | |
1752 | if (!((WL)w)->next) |
2163 | if (!((WL)w)->next) |
1753 | { |
2164 | { |
1754 | #if _WIN32 |
2165 | #if _WIN32 |
1755 | signal (w->signum, sighandler); |
2166 | signal (w->signum, ev_sighandler); |
1756 | #else |
2167 | #else |
1757 | struct sigaction sa; |
2168 | struct sigaction sa; |
1758 | sa.sa_handler = sighandler; |
2169 | sa.sa_handler = ev_sighandler; |
1759 | sigfillset (&sa.sa_mask); |
2170 | sigfillset (&sa.sa_mask); |
1760 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2171 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1761 | sigaction (w->signum, &sa, 0); |
2172 | sigaction (w->signum, &sa, 0); |
1762 | #endif |
2173 | #endif |
1763 | } |
2174 | } |
… | |
… | |
1768 | { |
2179 | { |
1769 | clear_pending (EV_A_ (W)w); |
2180 | clear_pending (EV_A_ (W)w); |
1770 | if (expect_false (!ev_is_active (w))) |
2181 | if (expect_false (!ev_is_active (w))) |
1771 | return; |
2182 | return; |
1772 | |
2183 | |
1773 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
2184 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
1774 | ev_stop (EV_A_ (W)w); |
2185 | ev_stop (EV_A_ (W)w); |
1775 | |
2186 | |
1776 | if (!signals [w->signum - 1].head) |
2187 | if (!signals [w->signum - 1].head) |
1777 | signal (w->signum, SIG_DFL); |
2188 | signal (w->signum, SIG_DFL); |
1778 | } |
2189 | } |
… | |
… | |
1785 | #endif |
2196 | #endif |
1786 | if (expect_false (ev_is_active (w))) |
2197 | if (expect_false (ev_is_active (w))) |
1787 | return; |
2198 | return; |
1788 | |
2199 | |
1789 | ev_start (EV_A_ (W)w, 1); |
2200 | ev_start (EV_A_ (W)w, 1); |
1790 | wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2201 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1791 | } |
2202 | } |
1792 | |
2203 | |
1793 | void |
2204 | void |
1794 | ev_child_stop (EV_P_ ev_child *w) |
2205 | ev_child_stop (EV_P_ ev_child *w) |
1795 | { |
2206 | { |
1796 | clear_pending (EV_A_ (W)w); |
2207 | clear_pending (EV_A_ (W)w); |
1797 | if (expect_false (!ev_is_active (w))) |
2208 | if (expect_false (!ev_is_active (w))) |
1798 | return; |
2209 | return; |
1799 | |
2210 | |
1800 | wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2211 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1801 | ev_stop (EV_A_ (W)w); |
2212 | ev_stop (EV_A_ (W)w); |
1802 | } |
2213 | } |
1803 | |
2214 | |
1804 | #if EV_STAT_ENABLE |
2215 | #if EV_STAT_ENABLE |
1805 | |
2216 | |
… | |
… | |
1824 | if (w->wd < 0) |
2235 | if (w->wd < 0) |
1825 | { |
2236 | { |
1826 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2237 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
1827 | |
2238 | |
1828 | /* monitor some parent directory for speedup hints */ |
2239 | /* monitor some parent directory for speedup hints */ |
|
|
2240 | /* note that exceeding the hardcoded limit is not a correctness issue, */ |
|
|
2241 | /* but an efficiency issue only */ |
1829 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2242 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
1830 | { |
2243 | { |
1831 | char path [4096]; |
2244 | char path [4096]; |
1832 | strcpy (path, w->path); |
2245 | strcpy (path, w->path); |
1833 | |
2246 | |
… | |
… | |
2078 | clear_pending (EV_A_ (W)w); |
2491 | clear_pending (EV_A_ (W)w); |
2079 | if (expect_false (!ev_is_active (w))) |
2492 | if (expect_false (!ev_is_active (w))) |
2080 | return; |
2493 | return; |
2081 | |
2494 | |
2082 | { |
2495 | { |
2083 | int active = ((W)w)->active; |
2496 | int active = ev_active (w); |
2084 | |
2497 | |
2085 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2498 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2086 | ((W)idles [ABSPRI (w)][active - 1])->active = active; |
2499 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
2087 | |
2500 | |
2088 | ev_stop (EV_A_ (W)w); |
2501 | ev_stop (EV_A_ (W)w); |
2089 | --idleall; |
2502 | --idleall; |
2090 | } |
2503 | } |
2091 | } |
2504 | } |
… | |
… | |
2108 | clear_pending (EV_A_ (W)w); |
2521 | clear_pending (EV_A_ (W)w); |
2109 | if (expect_false (!ev_is_active (w))) |
2522 | if (expect_false (!ev_is_active (w))) |
2110 | return; |
2523 | return; |
2111 | |
2524 | |
2112 | { |
2525 | { |
2113 | int active = ((W)w)->active; |
2526 | int active = ev_active (w); |
|
|
2527 | |
2114 | prepares [active - 1] = prepares [--preparecnt]; |
2528 | prepares [active - 1] = prepares [--preparecnt]; |
2115 | ((W)prepares [active - 1])->active = active; |
2529 | ev_active (prepares [active - 1]) = active; |
2116 | } |
2530 | } |
2117 | |
2531 | |
2118 | ev_stop (EV_A_ (W)w); |
2532 | ev_stop (EV_A_ (W)w); |
2119 | } |
2533 | } |
2120 | |
2534 | |
… | |
… | |
2135 | clear_pending (EV_A_ (W)w); |
2549 | clear_pending (EV_A_ (W)w); |
2136 | if (expect_false (!ev_is_active (w))) |
2550 | if (expect_false (!ev_is_active (w))) |
2137 | return; |
2551 | return; |
2138 | |
2552 | |
2139 | { |
2553 | { |
2140 | int active = ((W)w)->active; |
2554 | int active = ev_active (w); |
|
|
2555 | |
2141 | checks [active - 1] = checks [--checkcnt]; |
2556 | checks [active - 1] = checks [--checkcnt]; |
2142 | ((W)checks [active - 1])->active = active; |
2557 | ev_active (checks [active - 1]) = active; |
2143 | } |
2558 | } |
2144 | |
2559 | |
2145 | ev_stop (EV_A_ (W)w); |
2560 | ev_stop (EV_A_ (W)w); |
2146 | } |
2561 | } |
2147 | |
2562 | |
2148 | #if EV_EMBED_ENABLE |
2563 | #if EV_EMBED_ENABLE |
2149 | void noinline |
2564 | void noinline |
2150 | ev_embed_sweep (EV_P_ ev_embed *w) |
2565 | ev_embed_sweep (EV_P_ ev_embed *w) |
2151 | { |
2566 | { |
2152 | ev_loop (w->loop, EVLOOP_NONBLOCK); |
2567 | ev_loop (w->other, EVLOOP_NONBLOCK); |
2153 | } |
2568 | } |
2154 | |
2569 | |
2155 | static void |
2570 | static void |
2156 | embed_cb (EV_P_ ev_io *io, int revents) |
2571 | embed_io_cb (EV_P_ ev_io *io, int revents) |
2157 | { |
2572 | { |
2158 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
2573 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
2159 | |
2574 | |
2160 | if (ev_cb (w)) |
2575 | if (ev_cb (w)) |
2161 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2576 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2162 | else |
2577 | else |
2163 | ev_embed_sweep (loop, w); |
2578 | ev_loop (w->other, EVLOOP_NONBLOCK); |
2164 | } |
2579 | } |
|
|
2580 | |
|
|
2581 | static void |
|
|
2582 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
|
|
2583 | { |
|
|
2584 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
|
|
2585 | |
|
|
2586 | { |
|
|
2587 | struct ev_loop *loop = w->other; |
|
|
2588 | |
|
|
2589 | while (fdchangecnt) |
|
|
2590 | { |
|
|
2591 | fd_reify (EV_A); |
|
|
2592 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
2593 | } |
|
|
2594 | } |
|
|
2595 | } |
|
|
2596 | |
|
|
2597 | #if 0 |
|
|
2598 | static void |
|
|
2599 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
|
|
2600 | { |
|
|
2601 | ev_idle_stop (EV_A_ idle); |
|
|
2602 | } |
|
|
2603 | #endif |
2165 | |
2604 | |
2166 | void |
2605 | void |
2167 | ev_embed_start (EV_P_ ev_embed *w) |
2606 | ev_embed_start (EV_P_ ev_embed *w) |
2168 | { |
2607 | { |
2169 | if (expect_false (ev_is_active (w))) |
2608 | if (expect_false (ev_is_active (w))) |
2170 | return; |
2609 | return; |
2171 | |
2610 | |
2172 | { |
2611 | { |
2173 | struct ev_loop *loop = w->loop; |
2612 | struct ev_loop *loop = w->other; |
2174 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2613 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2175 | ev_io_init (&w->io, embed_cb, backend_fd, EV_READ); |
2614 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2176 | } |
2615 | } |
2177 | |
2616 | |
2178 | ev_set_priority (&w->io, ev_priority (w)); |
2617 | ev_set_priority (&w->io, ev_priority (w)); |
2179 | ev_io_start (EV_A_ &w->io); |
2618 | ev_io_start (EV_A_ &w->io); |
|
|
2619 | |
|
|
2620 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
|
|
2621 | ev_set_priority (&w->prepare, EV_MINPRI); |
|
|
2622 | ev_prepare_start (EV_A_ &w->prepare); |
|
|
2623 | |
|
|
2624 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
2180 | |
2625 | |
2181 | ev_start (EV_A_ (W)w, 1); |
2626 | ev_start (EV_A_ (W)w, 1); |
2182 | } |
2627 | } |
2183 | |
2628 | |
2184 | void |
2629 | void |
… | |
… | |
2187 | clear_pending (EV_A_ (W)w); |
2632 | clear_pending (EV_A_ (W)w); |
2188 | if (expect_false (!ev_is_active (w))) |
2633 | if (expect_false (!ev_is_active (w))) |
2189 | return; |
2634 | return; |
2190 | |
2635 | |
2191 | ev_io_stop (EV_A_ &w->io); |
2636 | ev_io_stop (EV_A_ &w->io); |
|
|
2637 | ev_prepare_stop (EV_A_ &w->prepare); |
2192 | |
2638 | |
2193 | ev_stop (EV_A_ (W)w); |
2639 | ev_stop (EV_A_ (W)w); |
2194 | } |
2640 | } |
2195 | #endif |
2641 | #endif |
2196 | |
2642 | |
… | |
… | |
2212 | clear_pending (EV_A_ (W)w); |
2658 | clear_pending (EV_A_ (W)w); |
2213 | if (expect_false (!ev_is_active (w))) |
2659 | if (expect_false (!ev_is_active (w))) |
2214 | return; |
2660 | return; |
2215 | |
2661 | |
2216 | { |
2662 | { |
2217 | int active = ((W)w)->active; |
2663 | int active = ev_active (w); |
|
|
2664 | |
2218 | forks [active - 1] = forks [--forkcnt]; |
2665 | forks [active - 1] = forks [--forkcnt]; |
2219 | ((W)forks [active - 1])->active = active; |
2666 | ev_active (forks [active - 1]) = active; |
2220 | } |
2667 | } |
2221 | |
2668 | |
2222 | ev_stop (EV_A_ (W)w); |
2669 | ev_stop (EV_A_ (W)w); |
|
|
2670 | } |
|
|
2671 | #endif |
|
|
2672 | |
|
|
2673 | #if EV_ASYNC_ENABLE |
|
|
2674 | void |
|
|
2675 | ev_async_start (EV_P_ ev_async *w) |
|
|
2676 | { |
|
|
2677 | if (expect_false (ev_is_active (w))) |
|
|
2678 | return; |
|
|
2679 | |
|
|
2680 | evpipe_init (EV_A); |
|
|
2681 | |
|
|
2682 | ev_start (EV_A_ (W)w, ++asynccnt); |
|
|
2683 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
|
|
2684 | asyncs [asynccnt - 1] = w; |
|
|
2685 | } |
|
|
2686 | |
|
|
2687 | void |
|
|
2688 | ev_async_stop (EV_P_ ev_async *w) |
|
|
2689 | { |
|
|
2690 | clear_pending (EV_A_ (W)w); |
|
|
2691 | if (expect_false (!ev_is_active (w))) |
|
|
2692 | return; |
|
|
2693 | |
|
|
2694 | { |
|
|
2695 | int active = ev_active (w); |
|
|
2696 | |
|
|
2697 | asyncs [active - 1] = asyncs [--asynccnt]; |
|
|
2698 | ev_active (asyncs [active - 1]) = active; |
|
|
2699 | } |
|
|
2700 | |
|
|
2701 | ev_stop (EV_A_ (W)w); |
|
|
2702 | } |
|
|
2703 | |
|
|
2704 | void |
|
|
2705 | ev_async_send (EV_P_ ev_async *w) |
|
|
2706 | { |
|
|
2707 | w->sent = 1; |
|
|
2708 | evpipe_write (EV_A_ &gotasync); |
2223 | } |
2709 | } |
2224 | #endif |
2710 | #endif |
2225 | |
2711 | |
2226 | /*****************************************************************************/ |
2712 | /*****************************************************************************/ |
2227 | |
2713 | |
… | |
… | |
2285 | ev_timer_set (&once->to, timeout, 0.); |
2771 | ev_timer_set (&once->to, timeout, 0.); |
2286 | ev_timer_start (EV_A_ &once->to); |
2772 | ev_timer_start (EV_A_ &once->to); |
2287 | } |
2773 | } |
2288 | } |
2774 | } |
2289 | |
2775 | |
|
|
2776 | #if EV_MULTIPLICITY |
|
|
2777 | #include "ev_wrap.h" |
|
|
2778 | #endif |
|
|
2779 | |
2290 | #ifdef __cplusplus |
2780 | #ifdef __cplusplus |
2291 | } |
2781 | } |
2292 | #endif |
2782 | #endif |
2293 | |
2783 | |