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 | #if EV_USE_MONOTONIC |
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331 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
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332 | /* giving it a reasonably high chance of working on typical architetcures */ |
266 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
333 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
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334 | #endif |
267 | |
335 | |
268 | #ifdef _WIN32 |
336 | #ifdef _WIN32 |
269 | # include "ev_win32.c" |
337 | # include "ev_win32.c" |
270 | #endif |
338 | #endif |
271 | |
339 | |
… | |
… | |
292 | perror (msg); |
360 | perror (msg); |
293 | abort (); |
361 | abort (); |
294 | } |
362 | } |
295 | } |
363 | } |
296 | |
364 | |
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365 | static void * |
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366 | ev_realloc_emul (void *ptr, long size) |
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367 | { |
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368 | /* some systems, notably openbsd and darwin, fail to properly |
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369 | * implement realloc (x, 0) (as required by both ansi c-98 and |
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370 | * the single unix specification, so work around them here. |
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371 | */ |
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372 | |
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373 | if (size) |
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374 | return realloc (ptr, size); |
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375 | |
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376 | free (ptr); |
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377 | return 0; |
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378 | } |
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379 | |
297 | static void *(*alloc)(void *ptr, long size); |
380 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
298 | |
381 | |
299 | void |
382 | void |
300 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
383 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
301 | { |
384 | { |
302 | alloc = cb; |
385 | alloc = cb; |
303 | } |
386 | } |
304 | |
387 | |
305 | inline_speed void * |
388 | inline_speed void * |
306 | ev_realloc (void *ptr, long size) |
389 | ev_realloc (void *ptr, long size) |
307 | { |
390 | { |
308 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
391 | ptr = alloc (ptr, size); |
309 | |
392 | |
310 | if (!ptr && size) |
393 | if (!ptr && size) |
311 | { |
394 | { |
312 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
395 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
313 | abort (); |
396 | abort (); |
… | |
… | |
407 | { |
490 | { |
408 | return ev_rt_now; |
491 | return ev_rt_now; |
409 | } |
492 | } |
410 | #endif |
493 | #endif |
411 | |
494 | |
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495 | void |
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496 | ev_sleep (ev_tstamp delay) |
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497 | { |
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498 | if (delay > 0.) |
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499 | { |
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500 | #if EV_USE_NANOSLEEP |
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501 | struct timespec ts; |
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502 | |
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503 | ts.tv_sec = (time_t)delay; |
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504 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
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505 | |
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506 | nanosleep (&ts, 0); |
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507 | #elif defined(_WIN32) |
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508 | Sleep ((unsigned long)(delay * 1e3)); |
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509 | #else |
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510 | struct timeval tv; |
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511 | |
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512 | tv.tv_sec = (time_t)delay; |
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513 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
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514 | |
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515 | select (0, 0, 0, 0, &tv); |
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516 | #endif |
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517 | } |
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518 | } |
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519 | |
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520 | /*****************************************************************************/ |
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521 | |
412 | int inline_size |
522 | int inline_size |
413 | array_nextsize (int elem, int cur, int cnt) |
523 | array_nextsize (int elem, int cur, int cnt) |
414 | { |
524 | { |
415 | int ncur = cur + 1; |
525 | int ncur = cur + 1; |
416 | |
526 | |
… | |
… | |
476 | pendings [pri][w_->pending - 1].w = w_; |
586 | pendings [pri][w_->pending - 1].w = w_; |
477 | pendings [pri][w_->pending - 1].events = revents; |
587 | pendings [pri][w_->pending - 1].events = revents; |
478 | } |
588 | } |
479 | } |
589 | } |
480 | |
590 | |
481 | void inline_size |
591 | void inline_speed |
482 | queue_events (EV_P_ W *events, int eventcnt, int type) |
592 | queue_events (EV_P_ W *events, int eventcnt, int type) |
483 | { |
593 | { |
484 | int i; |
594 | int i; |
485 | |
595 | |
486 | for (i = 0; i < eventcnt; ++i) |
596 | for (i = 0; i < eventcnt; ++i) |
… | |
… | |
533 | { |
643 | { |
534 | int fd = fdchanges [i]; |
644 | int fd = fdchanges [i]; |
535 | ANFD *anfd = anfds + fd; |
645 | ANFD *anfd = anfds + fd; |
536 | ev_io *w; |
646 | ev_io *w; |
537 | |
647 | |
538 | int events = 0; |
648 | unsigned char events = 0; |
539 | |
649 | |
540 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
650 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
541 | events |= w->events; |
651 | events |= (unsigned char)w->events; |
542 | |
652 | |
543 | #if EV_SELECT_IS_WINSOCKET |
653 | #if EV_SELECT_IS_WINSOCKET |
544 | if (events) |
654 | if (events) |
545 | { |
655 | { |
546 | unsigned long argp; |
656 | unsigned long argp; |
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657 | #ifdef EV_FD_TO_WIN32_HANDLE |
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658 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
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659 | #else |
547 | anfd->handle = _get_osfhandle (fd); |
660 | anfd->handle = _get_osfhandle (fd); |
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661 | #endif |
548 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
662 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
549 | } |
663 | } |
550 | #endif |
664 | #endif |
551 | |
665 | |
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666 | { |
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667 | unsigned char o_events = anfd->events; |
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668 | unsigned char o_reify = anfd->reify; |
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669 | |
552 | anfd->reify = 0; |
670 | anfd->reify = 0; |
553 | |
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554 | backend_modify (EV_A_ fd, anfd->events, events); |
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555 | anfd->events = events; |
671 | anfd->events = events; |
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672 | |
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673 | if (o_events != events || o_reify & EV_IOFDSET) |
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674 | backend_modify (EV_A_ fd, o_events, events); |
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675 | } |
556 | } |
676 | } |
557 | |
677 | |
558 | fdchangecnt = 0; |
678 | fdchangecnt = 0; |
559 | } |
679 | } |
560 | |
680 | |
561 | void inline_size |
681 | void inline_size |
562 | fd_change (EV_P_ int fd) |
682 | fd_change (EV_P_ int fd, int flags) |
563 | { |
683 | { |
564 | if (expect_false (anfds [fd].reify)) |
684 | unsigned char reify = anfds [fd].reify; |
565 | return; |
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566 | |
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567 | anfds [fd].reify = 1; |
685 | anfds [fd].reify |= flags; |
568 | |
686 | |
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687 | if (expect_true (!reify)) |
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688 | { |
569 | ++fdchangecnt; |
689 | ++fdchangecnt; |
570 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
690 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
571 | fdchanges [fdchangecnt - 1] = fd; |
691 | fdchanges [fdchangecnt - 1] = fd; |
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692 | } |
572 | } |
693 | } |
573 | |
694 | |
574 | void inline_speed |
695 | void inline_speed |
575 | fd_kill (EV_P_ int fd) |
696 | fd_kill (EV_P_ int fd) |
576 | { |
697 | { |
… | |
… | |
627 | |
748 | |
628 | for (fd = 0; fd < anfdmax; ++fd) |
749 | for (fd = 0; fd < anfdmax; ++fd) |
629 | if (anfds [fd].events) |
750 | if (anfds [fd].events) |
630 | { |
751 | { |
631 | anfds [fd].events = 0; |
752 | anfds [fd].events = 0; |
632 | fd_change (EV_A_ fd); |
753 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
633 | } |
754 | } |
634 | } |
755 | } |
635 | |
756 | |
636 | /*****************************************************************************/ |
757 | /*****************************************************************************/ |
637 | |
758 | |
638 | void inline_speed |
759 | void inline_speed |
639 | upheap (WT *heap, int k) |
760 | upheap (WT *heap, int k) |
640 | { |
761 | { |
641 | WT w = heap [k]; |
762 | WT w = heap [k]; |
642 | |
763 | |
643 | while (k && heap [k >> 1]->at > w->at) |
764 | while (k) |
644 | { |
765 | { |
|
|
766 | int p = (k - 1) >> 1; |
|
|
767 | |
|
|
768 | if (heap [p]->at <= w->at) |
|
|
769 | break; |
|
|
770 | |
645 | heap [k] = heap [k >> 1]; |
771 | heap [k] = heap [p]; |
646 | ((W)heap [k])->active = k + 1; |
772 | ((W)heap [k])->active = k + 1; |
647 | k >>= 1; |
773 | k = p; |
648 | } |
774 | } |
649 | |
775 | |
650 | heap [k] = w; |
776 | heap [k] = w; |
651 | ((W)heap [k])->active = k + 1; |
777 | ((W)heap [k])->active = k + 1; |
652 | |
|
|
653 | } |
778 | } |
654 | |
779 | |
655 | void inline_speed |
780 | void inline_speed |
656 | downheap (WT *heap, int N, int k) |
781 | downheap (WT *heap, int N, int k) |
657 | { |
782 | { |
658 | WT w = heap [k]; |
783 | WT w = heap [k]; |
659 | |
784 | |
660 | while (k < (N >> 1)) |
785 | for (;;) |
661 | { |
786 | { |
662 | int j = k << 1; |
787 | int c = (k << 1) + 1; |
663 | |
788 | |
664 | if (j + 1 < N && heap [j]->at > heap [j + 1]->at) |
789 | if (c >= N) |
665 | ++j; |
|
|
666 | |
|
|
667 | if (w->at <= heap [j]->at) |
|
|
668 | break; |
790 | break; |
669 | |
791 | |
|
|
792 | c += c + 1 < N && heap [c]->at > heap [c + 1]->at |
|
|
793 | ? 1 : 0; |
|
|
794 | |
|
|
795 | if (w->at <= heap [c]->at) |
|
|
796 | break; |
|
|
797 | |
670 | heap [k] = heap [j]; |
798 | heap [k] = heap [c]; |
671 | ((W)heap [k])->active = k + 1; |
799 | ((W)heap [k])->active = k + 1; |
|
|
800 | |
672 | k = j; |
801 | k = c; |
673 | } |
802 | } |
674 | |
803 | |
675 | heap [k] = w; |
804 | heap [k] = w; |
676 | ((W)heap [k])->active = k + 1; |
805 | ((W)heap [k])->active = k + 1; |
677 | } |
806 | } |
… | |
… | |
686 | /*****************************************************************************/ |
815 | /*****************************************************************************/ |
687 | |
816 | |
688 | typedef struct |
817 | typedef struct |
689 | { |
818 | { |
690 | WL head; |
819 | WL head; |
691 | sig_atomic_t volatile gotsig; |
820 | EV_ATOMIC_T gotsig; |
692 | } ANSIG; |
821 | } ANSIG; |
693 | |
822 | |
694 | static ANSIG *signals; |
823 | static ANSIG *signals; |
695 | static int signalmax; |
824 | static int signalmax; |
696 | |
825 | |
697 | static int sigpipe [2]; |
826 | static EV_ATOMIC_T gotsig; |
698 | static sig_atomic_t volatile gotsig; |
|
|
699 | static ev_io sigev; |
|
|
700 | |
827 | |
701 | void inline_size |
828 | void inline_size |
702 | signals_init (ANSIG *base, int count) |
829 | signals_init (ANSIG *base, int count) |
703 | { |
830 | { |
704 | while (count--) |
831 | while (count--) |
… | |
… | |
708 | |
835 | |
709 | ++base; |
836 | ++base; |
710 | } |
837 | } |
711 | } |
838 | } |
712 | |
839 | |
713 | static void |
840 | /*****************************************************************************/ |
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 | |
841 | |
764 | void inline_speed |
842 | void inline_speed |
765 | fd_intern (int fd) |
843 | fd_intern (int fd) |
766 | { |
844 | { |
767 | #ifdef _WIN32 |
845 | #ifdef _WIN32 |
… | |
… | |
772 | fcntl (fd, F_SETFL, O_NONBLOCK); |
850 | fcntl (fd, F_SETFL, O_NONBLOCK); |
773 | #endif |
851 | #endif |
774 | } |
852 | } |
775 | |
853 | |
776 | static void noinline |
854 | static void noinline |
777 | siginit (EV_P) |
855 | evpipe_init (EV_P) |
778 | { |
856 | { |
|
|
857 | if (!ev_is_active (&pipeev)) |
|
|
858 | { |
|
|
859 | #if EV_USE_EVENTFD |
|
|
860 | if ((evfd = eventfd (0, 0)) >= 0) |
|
|
861 | { |
|
|
862 | evpipe [0] = -1; |
|
|
863 | fd_intern (evfd); |
|
|
864 | ev_io_set (&pipeev, evfd, EV_READ); |
|
|
865 | } |
|
|
866 | else |
|
|
867 | #endif |
|
|
868 | { |
|
|
869 | while (pipe (evpipe)) |
|
|
870 | syserr ("(libev) error creating signal/async pipe"); |
|
|
871 | |
779 | fd_intern (sigpipe [0]); |
872 | fd_intern (evpipe [0]); |
780 | fd_intern (sigpipe [1]); |
873 | fd_intern (evpipe [1]); |
|
|
874 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
|
|
875 | } |
781 | |
876 | |
782 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
|
|
783 | ev_io_start (EV_A_ &sigev); |
877 | ev_io_start (EV_A_ &pipeev); |
784 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
878 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
879 | } |
|
|
880 | } |
|
|
881 | |
|
|
882 | void inline_size |
|
|
883 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
884 | { |
|
|
885 | if (!*flag) |
|
|
886 | { |
|
|
887 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
888 | |
|
|
889 | *flag = 1; |
|
|
890 | |
|
|
891 | #if EV_USE_EVENTFD |
|
|
892 | if (evfd >= 0) |
|
|
893 | { |
|
|
894 | uint64_t counter = 1; |
|
|
895 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
896 | } |
|
|
897 | else |
|
|
898 | #endif |
|
|
899 | write (evpipe [1], &old_errno, 1); |
|
|
900 | |
|
|
901 | errno = old_errno; |
|
|
902 | } |
|
|
903 | } |
|
|
904 | |
|
|
905 | static void |
|
|
906 | pipecb (EV_P_ ev_io *iow, int revents) |
|
|
907 | { |
|
|
908 | #if EV_USE_EVENTFD |
|
|
909 | if (evfd >= 0) |
|
|
910 | { |
|
|
911 | uint64_t counter = 1; |
|
|
912 | read (evfd, &counter, sizeof (uint64_t)); |
|
|
913 | } |
|
|
914 | else |
|
|
915 | #endif |
|
|
916 | { |
|
|
917 | char dummy; |
|
|
918 | read (evpipe [0], &dummy, 1); |
|
|
919 | } |
|
|
920 | |
|
|
921 | if (gotsig && ev_is_default_loop (EV_A)) |
|
|
922 | { |
|
|
923 | int signum; |
|
|
924 | gotsig = 0; |
|
|
925 | |
|
|
926 | for (signum = signalmax; signum--; ) |
|
|
927 | if (signals [signum].gotsig) |
|
|
928 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
929 | } |
|
|
930 | |
|
|
931 | #if EV_ASYNC_ENABLE |
|
|
932 | if (gotasync) |
|
|
933 | { |
|
|
934 | int i; |
|
|
935 | gotasync = 0; |
|
|
936 | |
|
|
937 | for (i = asynccnt; i--; ) |
|
|
938 | if (asyncs [i]->sent) |
|
|
939 | { |
|
|
940 | asyncs [i]->sent = 0; |
|
|
941 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
|
|
942 | } |
|
|
943 | } |
|
|
944 | #endif |
785 | } |
945 | } |
786 | |
946 | |
787 | /*****************************************************************************/ |
947 | /*****************************************************************************/ |
788 | |
948 | |
|
|
949 | static void |
|
|
950 | ev_sighandler (int signum) |
|
|
951 | { |
|
|
952 | #if EV_MULTIPLICITY |
|
|
953 | struct ev_loop *loop = &default_loop_struct; |
|
|
954 | #endif |
|
|
955 | |
|
|
956 | #if _WIN32 |
|
|
957 | signal (signum, ev_sighandler); |
|
|
958 | #endif |
|
|
959 | |
|
|
960 | signals [signum - 1].gotsig = 1; |
|
|
961 | evpipe_write (EV_A_ &gotsig); |
|
|
962 | } |
|
|
963 | |
|
|
964 | void noinline |
|
|
965 | ev_feed_signal_event (EV_P_ int signum) |
|
|
966 | { |
|
|
967 | WL w; |
|
|
968 | |
|
|
969 | #if EV_MULTIPLICITY |
|
|
970 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
971 | #endif |
|
|
972 | |
|
|
973 | --signum; |
|
|
974 | |
|
|
975 | if (signum < 0 || signum >= signalmax) |
|
|
976 | return; |
|
|
977 | |
|
|
978 | signals [signum].gotsig = 0; |
|
|
979 | |
|
|
980 | for (w = signals [signum].head; w; w = w->next) |
|
|
981 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
982 | } |
|
|
983 | |
|
|
984 | /*****************************************************************************/ |
|
|
985 | |
789 | static ev_child *childs [EV_PID_HASHSIZE]; |
986 | static WL childs [EV_PID_HASHSIZE]; |
790 | |
987 | |
791 | #ifndef _WIN32 |
988 | #ifndef _WIN32 |
792 | |
989 | |
793 | static ev_signal childev; |
990 | static ev_signal childev; |
794 | |
991 | |
|
|
992 | #ifndef WIFCONTINUED |
|
|
993 | # define WIFCONTINUED(status) 0 |
|
|
994 | #endif |
|
|
995 | |
795 | void inline_speed |
996 | void inline_speed |
796 | child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) |
997 | child_reap (EV_P_ int chain, int pid, int status) |
797 | { |
998 | { |
798 | ev_child *w; |
999 | ev_child *w; |
|
|
1000 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
799 | |
1001 | |
800 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1002 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1003 | { |
801 | if (w->pid == pid || !w->pid) |
1004 | if ((w->pid == pid || !w->pid) |
|
|
1005 | && (!traced || (w->flags & 1))) |
802 | { |
1006 | { |
803 | ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */ |
1007 | 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; |
1008 | w->rpid = pid; |
805 | w->rstatus = status; |
1009 | w->rstatus = status; |
806 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
1010 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
807 | } |
1011 | } |
|
|
1012 | } |
808 | } |
1013 | } |
809 | |
1014 | |
810 | #ifndef WCONTINUED |
1015 | #ifndef WCONTINUED |
811 | # define WCONTINUED 0 |
1016 | # define WCONTINUED 0 |
812 | #endif |
1017 | #endif |
… | |
… | |
821 | if (!WCONTINUED |
1026 | if (!WCONTINUED |
822 | || errno != EINVAL |
1027 | || errno != EINVAL |
823 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
1028 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
824 | return; |
1029 | return; |
825 | |
1030 | |
826 | /* make sure we are called again until all childs have been reaped */ |
1031 | /* 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 */ |
1032 | /* 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); |
1033 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
829 | |
1034 | |
830 | child_reap (EV_A_ sw, pid, pid, status); |
1035 | child_reap (EV_A_ pid, pid, status); |
831 | if (EV_PID_HASHSIZE > 1) |
1036 | 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 */ |
1037 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
833 | } |
1038 | } |
834 | |
1039 | |
835 | #endif |
1040 | #endif |
836 | |
1041 | |
837 | /*****************************************************************************/ |
1042 | /*****************************************************************************/ |
… | |
… | |
909 | } |
1114 | } |
910 | |
1115 | |
911 | unsigned int |
1116 | unsigned int |
912 | ev_embeddable_backends (void) |
1117 | ev_embeddable_backends (void) |
913 | { |
1118 | { |
914 | return EVBACKEND_EPOLL |
1119 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
915 | | EVBACKEND_KQUEUE |
1120 | |
916 | | EVBACKEND_PORT; |
1121 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
|
|
1122 | /* please fix it and tell me how to detect the fix */ |
|
|
1123 | flags &= ~EVBACKEND_EPOLL; |
|
|
1124 | |
|
|
1125 | return flags; |
917 | } |
1126 | } |
918 | |
1127 | |
919 | unsigned int |
1128 | unsigned int |
920 | ev_backend (EV_P) |
1129 | ev_backend (EV_P) |
921 | { |
1130 | { |
… | |
… | |
924 | |
1133 | |
925 | unsigned int |
1134 | unsigned int |
926 | ev_loop_count (EV_P) |
1135 | ev_loop_count (EV_P) |
927 | { |
1136 | { |
928 | return loop_count; |
1137 | return loop_count; |
|
|
1138 | } |
|
|
1139 | |
|
|
1140 | void |
|
|
1141 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1142 | { |
|
|
1143 | io_blocktime = interval; |
|
|
1144 | } |
|
|
1145 | |
|
|
1146 | void |
|
|
1147 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1148 | { |
|
|
1149 | timeout_blocktime = interval; |
929 | } |
1150 | } |
930 | |
1151 | |
931 | static void noinline |
1152 | static void noinline |
932 | loop_init (EV_P_ unsigned int flags) |
1153 | loop_init (EV_P_ unsigned int flags) |
933 | { |
1154 | { |
… | |
… | |
939 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1160 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
940 | have_monotonic = 1; |
1161 | have_monotonic = 1; |
941 | } |
1162 | } |
942 | #endif |
1163 | #endif |
943 | |
1164 | |
944 | ev_rt_now = ev_time (); |
1165 | ev_rt_now = ev_time (); |
945 | mn_now = get_clock (); |
1166 | mn_now = get_clock (); |
946 | now_floor = mn_now; |
1167 | now_floor = mn_now; |
947 | rtmn_diff = ev_rt_now - mn_now; |
1168 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1169 | |
|
|
1170 | io_blocktime = 0.; |
|
|
1171 | timeout_blocktime = 0.; |
|
|
1172 | backend = 0; |
|
|
1173 | backend_fd = -1; |
|
|
1174 | gotasync = 0; |
|
|
1175 | #if EV_USE_INOTIFY |
|
|
1176 | fs_fd = -2; |
|
|
1177 | #endif |
948 | |
1178 | |
949 | /* pid check not overridable via env */ |
1179 | /* pid check not overridable via env */ |
950 | #ifndef _WIN32 |
1180 | #ifndef _WIN32 |
951 | if (flags & EVFLAG_FORKCHECK) |
1181 | if (flags & EVFLAG_FORKCHECK) |
952 | curpid = getpid (); |
1182 | curpid = getpid (); |
… | |
… | |
955 | if (!(flags & EVFLAG_NOENV) |
1185 | if (!(flags & EVFLAG_NOENV) |
956 | && !enable_secure () |
1186 | && !enable_secure () |
957 | && getenv ("LIBEV_FLAGS")) |
1187 | && getenv ("LIBEV_FLAGS")) |
958 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1188 | flags = atoi (getenv ("LIBEV_FLAGS")); |
959 | |
1189 | |
960 | if (!(flags & 0x0000ffffUL)) |
1190 | if (!(flags & 0x0000ffffU)) |
961 | flags |= ev_recommended_backends (); |
1191 | flags |= ev_recommended_backends (); |
962 | |
|
|
963 | backend = 0; |
|
|
964 | backend_fd = -1; |
|
|
965 | #if EV_USE_INOTIFY |
|
|
966 | fs_fd = -2; |
|
|
967 | #endif |
|
|
968 | |
1192 | |
969 | #if EV_USE_PORT |
1193 | #if EV_USE_PORT |
970 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1194 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
971 | #endif |
1195 | #endif |
972 | #if EV_USE_KQUEUE |
1196 | #if EV_USE_KQUEUE |
… | |
… | |
980 | #endif |
1204 | #endif |
981 | #if EV_USE_SELECT |
1205 | #if EV_USE_SELECT |
982 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1206 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
983 | #endif |
1207 | #endif |
984 | |
1208 | |
985 | ev_init (&sigev, sigcb); |
1209 | ev_init (&pipeev, pipecb); |
986 | ev_set_priority (&sigev, EV_MAXPRI); |
1210 | ev_set_priority (&pipeev, EV_MAXPRI); |
987 | } |
1211 | } |
988 | } |
1212 | } |
989 | |
1213 | |
990 | static void noinline |
1214 | static void noinline |
991 | loop_destroy (EV_P) |
1215 | loop_destroy (EV_P) |
992 | { |
1216 | { |
993 | int i; |
1217 | int i; |
|
|
1218 | |
|
|
1219 | if (ev_is_active (&pipeev)) |
|
|
1220 | { |
|
|
1221 | ev_ref (EV_A); /* signal watcher */ |
|
|
1222 | ev_io_stop (EV_A_ &pipeev); |
|
|
1223 | |
|
|
1224 | #if EV_USE_EVENTFD |
|
|
1225 | if (evfd >= 0) |
|
|
1226 | close (evfd); |
|
|
1227 | #endif |
|
|
1228 | |
|
|
1229 | if (evpipe [0] >= 0) |
|
|
1230 | { |
|
|
1231 | close (evpipe [0]); |
|
|
1232 | close (evpipe [1]); |
|
|
1233 | } |
|
|
1234 | } |
994 | |
1235 | |
995 | #if EV_USE_INOTIFY |
1236 | #if EV_USE_INOTIFY |
996 | if (fs_fd >= 0) |
1237 | if (fs_fd >= 0) |
997 | close (fs_fd); |
1238 | close (fs_fd); |
998 | #endif |
1239 | #endif |
… | |
… | |
1021 | array_free (pending, [i]); |
1262 | array_free (pending, [i]); |
1022 | #if EV_IDLE_ENABLE |
1263 | #if EV_IDLE_ENABLE |
1023 | array_free (idle, [i]); |
1264 | array_free (idle, [i]); |
1024 | #endif |
1265 | #endif |
1025 | } |
1266 | } |
|
|
1267 | |
|
|
1268 | ev_free (anfds); anfdmax = 0; |
1026 | |
1269 | |
1027 | /* have to use the microsoft-never-gets-it-right macro */ |
1270 | /* have to use the microsoft-never-gets-it-right macro */ |
1028 | array_free (fdchange, EMPTY); |
1271 | array_free (fdchange, EMPTY); |
1029 | array_free (timer, EMPTY); |
1272 | array_free (timer, EMPTY); |
1030 | #if EV_PERIODIC_ENABLE |
1273 | #if EV_PERIODIC_ENABLE |
1031 | array_free (periodic, EMPTY); |
1274 | array_free (periodic, EMPTY); |
1032 | #endif |
1275 | #endif |
|
|
1276 | #if EV_FORK_ENABLE |
|
|
1277 | array_free (fork, EMPTY); |
|
|
1278 | #endif |
1033 | array_free (prepare, EMPTY); |
1279 | array_free (prepare, EMPTY); |
1034 | array_free (check, EMPTY); |
1280 | array_free (check, EMPTY); |
|
|
1281 | #if EV_ASYNC_ENABLE |
|
|
1282 | array_free (async, EMPTY); |
|
|
1283 | #endif |
1035 | |
1284 | |
1036 | backend = 0; |
1285 | backend = 0; |
1037 | } |
1286 | } |
1038 | |
1287 | |
1039 | void inline_size infy_fork (EV_P); |
1288 | void inline_size infy_fork (EV_P); |
… | |
… | |
1052 | #endif |
1301 | #endif |
1053 | #if EV_USE_INOTIFY |
1302 | #if EV_USE_INOTIFY |
1054 | infy_fork (EV_A); |
1303 | infy_fork (EV_A); |
1055 | #endif |
1304 | #endif |
1056 | |
1305 | |
1057 | if (ev_is_active (&sigev)) |
1306 | if (ev_is_active (&pipeev)) |
1058 | { |
1307 | { |
1059 | /* default loop */ |
1308 | /* this "locks" the handlers against writing to the pipe */ |
|
|
1309 | /* while we modify the fd vars */ |
|
|
1310 | gotsig = 1; |
|
|
1311 | #if EV_ASYNC_ENABLE |
|
|
1312 | gotasync = 1; |
|
|
1313 | #endif |
1060 | |
1314 | |
1061 | ev_ref (EV_A); |
1315 | ev_ref (EV_A); |
1062 | ev_io_stop (EV_A_ &sigev); |
1316 | ev_io_stop (EV_A_ &pipeev); |
|
|
1317 | |
|
|
1318 | #if EV_USE_EVENTFD |
|
|
1319 | if (evfd >= 0) |
|
|
1320 | close (evfd); |
|
|
1321 | #endif |
|
|
1322 | |
|
|
1323 | if (evpipe [0] >= 0) |
|
|
1324 | { |
1063 | close (sigpipe [0]); |
1325 | close (evpipe [0]); |
1064 | close (sigpipe [1]); |
1326 | close (evpipe [1]); |
|
|
1327 | } |
1065 | |
1328 | |
1066 | while (pipe (sigpipe)) |
|
|
1067 | syserr ("(libev) error creating pipe"); |
|
|
1068 | |
|
|
1069 | siginit (EV_A); |
1329 | evpipe_init (EV_A); |
|
|
1330 | /* now iterate over everything, in case we missed something */ |
|
|
1331 | pipecb (EV_A_ &pipeev, EV_READ); |
1070 | } |
1332 | } |
1071 | |
1333 | |
1072 | postfork = 0; |
1334 | postfork = 0; |
1073 | } |
1335 | } |
1074 | |
1336 | |
… | |
… | |
1096 | } |
1358 | } |
1097 | |
1359 | |
1098 | void |
1360 | void |
1099 | ev_loop_fork (EV_P) |
1361 | ev_loop_fork (EV_P) |
1100 | { |
1362 | { |
1101 | postfork = 1; |
1363 | postfork = 1; /* must be in line with ev_default_fork */ |
1102 | } |
1364 | } |
1103 | |
1365 | |
1104 | #endif |
1366 | #endif |
1105 | |
1367 | |
1106 | #if EV_MULTIPLICITY |
1368 | #if EV_MULTIPLICITY |
… | |
… | |
1109 | #else |
1371 | #else |
1110 | int |
1372 | int |
1111 | ev_default_loop (unsigned int flags) |
1373 | ev_default_loop (unsigned int flags) |
1112 | #endif |
1374 | #endif |
1113 | { |
1375 | { |
1114 | if (sigpipe [0] == sigpipe [1]) |
|
|
1115 | if (pipe (sigpipe)) |
|
|
1116 | return 0; |
|
|
1117 | |
|
|
1118 | if (!ev_default_loop_ptr) |
1376 | if (!ev_default_loop_ptr) |
1119 | { |
1377 | { |
1120 | #if EV_MULTIPLICITY |
1378 | #if EV_MULTIPLICITY |
1121 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1379 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1122 | #else |
1380 | #else |
… | |
… | |
1125 | |
1383 | |
1126 | loop_init (EV_A_ flags); |
1384 | loop_init (EV_A_ flags); |
1127 | |
1385 | |
1128 | if (ev_backend (EV_A)) |
1386 | if (ev_backend (EV_A)) |
1129 | { |
1387 | { |
1130 | siginit (EV_A); |
|
|
1131 | |
|
|
1132 | #ifndef _WIN32 |
1388 | #ifndef _WIN32 |
1133 | ev_signal_init (&childev, childcb, SIGCHLD); |
1389 | ev_signal_init (&childev, childcb, SIGCHLD); |
1134 | ev_set_priority (&childev, EV_MAXPRI); |
1390 | ev_set_priority (&childev, EV_MAXPRI); |
1135 | ev_signal_start (EV_A_ &childev); |
1391 | ev_signal_start (EV_A_ &childev); |
1136 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1392 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
… | |
… | |
1153 | #ifndef _WIN32 |
1409 | #ifndef _WIN32 |
1154 | ev_ref (EV_A); /* child watcher */ |
1410 | ev_ref (EV_A); /* child watcher */ |
1155 | ev_signal_stop (EV_A_ &childev); |
1411 | ev_signal_stop (EV_A_ &childev); |
1156 | #endif |
1412 | #endif |
1157 | |
1413 | |
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); |
1414 | loop_destroy (EV_A); |
1165 | } |
1415 | } |
1166 | |
1416 | |
1167 | void |
1417 | void |
1168 | ev_default_fork (void) |
1418 | ev_default_fork (void) |
… | |
… | |
1170 | #if EV_MULTIPLICITY |
1420 | #if EV_MULTIPLICITY |
1171 | struct ev_loop *loop = ev_default_loop_ptr; |
1421 | struct ev_loop *loop = ev_default_loop_ptr; |
1172 | #endif |
1422 | #endif |
1173 | |
1423 | |
1174 | if (backend) |
1424 | if (backend) |
1175 | postfork = 1; |
1425 | postfork = 1; /* must be in line with ev_loop_fork */ |
1176 | } |
1426 | } |
1177 | |
1427 | |
1178 | /*****************************************************************************/ |
1428 | /*****************************************************************************/ |
1179 | |
1429 | |
1180 | void |
1430 | void |
… | |
… | |
1206 | void inline_size |
1456 | void inline_size |
1207 | timers_reify (EV_P) |
1457 | timers_reify (EV_P) |
1208 | { |
1458 | { |
1209 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
1459 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
1210 | { |
1460 | { |
1211 | ev_timer *w = timers [0]; |
1461 | ev_timer *w = (ev_timer *)timers [0]; |
1212 | |
1462 | |
1213 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
1463 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
1214 | |
1464 | |
1215 | /* first reschedule or stop timer */ |
1465 | /* first reschedule or stop timer */ |
1216 | if (w->repeat) |
1466 | if (w->repeat) |
… | |
… | |
1219 | |
1469 | |
1220 | ((WT)w)->at += w->repeat; |
1470 | ((WT)w)->at += w->repeat; |
1221 | if (((WT)w)->at < mn_now) |
1471 | if (((WT)w)->at < mn_now) |
1222 | ((WT)w)->at = mn_now; |
1472 | ((WT)w)->at = mn_now; |
1223 | |
1473 | |
1224 | downheap ((WT *)timers, timercnt, 0); |
1474 | downheap (timers, timercnt, 0); |
1225 | } |
1475 | } |
1226 | else |
1476 | else |
1227 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1477 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1228 | |
1478 | |
1229 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
1479 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
… | |
… | |
1234 | void inline_size |
1484 | void inline_size |
1235 | periodics_reify (EV_P) |
1485 | periodics_reify (EV_P) |
1236 | { |
1486 | { |
1237 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
1487 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
1238 | { |
1488 | { |
1239 | ev_periodic *w = periodics [0]; |
1489 | ev_periodic *w = (ev_periodic *)periodics [0]; |
1240 | |
1490 | |
1241 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
1491 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
1242 | |
1492 | |
1243 | /* first reschedule or stop timer */ |
1493 | /* first reschedule or stop timer */ |
1244 | if (w->reschedule_cb) |
1494 | if (w->reschedule_cb) |
1245 | { |
1495 | { |
1246 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); |
1496 | ((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)); |
1497 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
1248 | downheap ((WT *)periodics, periodiccnt, 0); |
1498 | downheap (periodics, periodiccnt, 0); |
1249 | } |
1499 | } |
1250 | else if (w->interval) |
1500 | else if (w->interval) |
1251 | { |
1501 | { |
1252 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1502 | ((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; |
1503 | 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)); |
1504 | 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); |
1505 | downheap (periodics, periodiccnt, 0); |
1256 | } |
1506 | } |
1257 | else |
1507 | else |
1258 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1508 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1259 | |
1509 | |
1260 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
1510 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
… | |
… | |
1267 | int i; |
1517 | int i; |
1268 | |
1518 | |
1269 | /* adjust periodics after time jump */ |
1519 | /* adjust periodics after time jump */ |
1270 | for (i = 0; i < periodiccnt; ++i) |
1520 | for (i = 0; i < periodiccnt; ++i) |
1271 | { |
1521 | { |
1272 | ev_periodic *w = periodics [i]; |
1522 | ev_periodic *w = (ev_periodic *)periodics [i]; |
1273 | |
1523 | |
1274 | if (w->reschedule_cb) |
1524 | if (w->reschedule_cb) |
1275 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1525 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1276 | else if (w->interval) |
1526 | else if (w->interval) |
1277 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1527 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1278 | } |
1528 | } |
1279 | |
1529 | |
1280 | /* now rebuild the heap */ |
1530 | /* now rebuild the heap */ |
1281 | for (i = periodiccnt >> 1; i--; ) |
1531 | for (i = periodiccnt >> 1; i--; ) |
1282 | downheap ((WT *)periodics, periodiccnt, i); |
1532 | downheap (periodics, periodiccnt, i); |
1283 | } |
1533 | } |
1284 | #endif |
1534 | #endif |
1285 | |
1535 | |
1286 | #if EV_IDLE_ENABLE |
1536 | #if EV_IDLE_ENABLE |
1287 | void inline_size |
1537 | void inline_size |
… | |
… | |
1304 | } |
1554 | } |
1305 | } |
1555 | } |
1306 | } |
1556 | } |
1307 | #endif |
1557 | #endif |
1308 | |
1558 | |
1309 | int inline_size |
1559 | void inline_speed |
1310 | time_update_monotonic (EV_P) |
1560 | time_update (EV_P_ ev_tstamp max_block) |
1311 | { |
1561 | { |
|
|
1562 | int i; |
|
|
1563 | |
|
|
1564 | #if EV_USE_MONOTONIC |
|
|
1565 | if (expect_true (have_monotonic)) |
|
|
1566 | { |
|
|
1567 | ev_tstamp odiff = rtmn_diff; |
|
|
1568 | |
1312 | mn_now = get_clock (); |
1569 | mn_now = get_clock (); |
1313 | |
1570 | |
|
|
1571 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
|
|
1572 | /* interpolate in the meantime */ |
1314 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1573 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1315 | { |
1574 | { |
1316 | ev_rt_now = rtmn_diff + mn_now; |
1575 | ev_rt_now = rtmn_diff + mn_now; |
1317 | return 0; |
1576 | return; |
1318 | } |
1577 | } |
1319 | else |
1578 | |
1320 | { |
|
|
1321 | now_floor = mn_now; |
1579 | now_floor = mn_now; |
1322 | ev_rt_now = ev_time (); |
1580 | ev_rt_now = ev_time (); |
1323 | return 1; |
|
|
1324 | } |
|
|
1325 | } |
|
|
1326 | |
1581 | |
1327 | void inline_size |
1582 | /* loop a few times, before making important decisions. |
1328 | time_update (EV_P) |
1583 | * on the choice of "4": one iteration isn't enough, |
1329 | { |
1584 | * in case we get preempted during the calls to |
1330 | int i; |
1585 | * ev_time and get_clock. a second call is almost guaranteed |
1331 | |
1586 | * to succeed in that case, though. and looping a few more times |
1332 | #if EV_USE_MONOTONIC |
1587 | * doesn't hurt either as we only do this on time-jumps or |
1333 | if (expect_true (have_monotonic)) |
1588 | * in the unlikely event of having been preempted here. |
1334 | { |
1589 | */ |
1335 | if (time_update_monotonic (EV_A)) |
1590 | for (i = 4; --i; ) |
1336 | { |
1591 | { |
1337 | ev_tstamp odiff = rtmn_diff; |
|
|
1338 | |
|
|
1339 | /* loop a few times, before making important decisions. |
|
|
1340 | * on the choice of "4": one iteration isn't enough, |
|
|
1341 | * in case we get preempted during the calls to |
|
|
1342 | * ev_time and get_clock. a second call is almost guaranteed |
|
|
1343 | * to succeed in that case, though. and looping a few more times |
|
|
1344 | * doesn't hurt either as we only do this on time-jumps or |
|
|
1345 | * in the unlikely event of having been preempted here. |
|
|
1346 | */ |
|
|
1347 | for (i = 4; --i; ) |
|
|
1348 | { |
|
|
1349 | rtmn_diff = ev_rt_now - mn_now; |
1592 | rtmn_diff = ev_rt_now - mn_now; |
1350 | |
1593 | |
1351 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1594 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1352 | return; /* all is well */ |
1595 | return; /* all is well */ |
1353 | |
1596 | |
1354 | ev_rt_now = ev_time (); |
1597 | ev_rt_now = ev_time (); |
1355 | mn_now = get_clock (); |
1598 | mn_now = get_clock (); |
1356 | now_floor = mn_now; |
1599 | now_floor = mn_now; |
1357 | } |
1600 | } |
1358 | |
1601 | |
1359 | # if EV_PERIODIC_ENABLE |
1602 | # if EV_PERIODIC_ENABLE |
1360 | periodics_reschedule (EV_A); |
1603 | periodics_reschedule (EV_A); |
1361 | # endif |
1604 | # endif |
1362 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
1605 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
1363 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1606 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1364 | } |
|
|
1365 | } |
1607 | } |
1366 | else |
1608 | else |
1367 | #endif |
1609 | #endif |
1368 | { |
1610 | { |
1369 | ev_rt_now = ev_time (); |
1611 | ev_rt_now = ev_time (); |
1370 | |
1612 | |
1371 | if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
1613 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
1372 | { |
1614 | { |
1373 | #if EV_PERIODIC_ENABLE |
1615 | #if EV_PERIODIC_ENABLE |
1374 | periodics_reschedule (EV_A); |
1616 | periodics_reschedule (EV_A); |
1375 | #endif |
1617 | #endif |
1376 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
1618 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
… | |
… | |
1397 | static int loop_done; |
1639 | static int loop_done; |
1398 | |
1640 | |
1399 | void |
1641 | void |
1400 | ev_loop (EV_P_ int flags) |
1642 | ev_loop (EV_P_ int flags) |
1401 | { |
1643 | { |
1402 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) |
1644 | loop_done = EVUNLOOP_CANCEL; |
1403 | ? EVUNLOOP_ONE |
|
|
1404 | : EVUNLOOP_CANCEL; |
|
|
1405 | |
1645 | |
1406 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
1646 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
1407 | |
1647 | |
1408 | do |
1648 | do |
1409 | { |
1649 | { |
… | |
… | |
1443 | /* update fd-related kernel structures */ |
1683 | /* update fd-related kernel structures */ |
1444 | fd_reify (EV_A); |
1684 | fd_reify (EV_A); |
1445 | |
1685 | |
1446 | /* calculate blocking time */ |
1686 | /* calculate blocking time */ |
1447 | { |
1687 | { |
1448 | ev_tstamp block; |
1688 | ev_tstamp waittime = 0.; |
|
|
1689 | ev_tstamp sleeptime = 0.; |
1449 | |
1690 | |
1450 | if (expect_false (flags & EVLOOP_NONBLOCK || idleall || !activecnt)) |
1691 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
1451 | block = 0.; /* do not block at all */ |
|
|
1452 | else |
|
|
1453 | { |
1692 | { |
1454 | /* update time to cancel out callback processing overhead */ |
1693 | /* update time to cancel out callback processing overhead */ |
1455 | #if EV_USE_MONOTONIC |
|
|
1456 | if (expect_true (have_monotonic)) |
|
|
1457 | time_update_monotonic (EV_A); |
1694 | time_update (EV_A_ 1e100); |
1458 | else |
|
|
1459 | #endif |
|
|
1460 | { |
|
|
1461 | ev_rt_now = ev_time (); |
|
|
1462 | mn_now = ev_rt_now; |
|
|
1463 | } |
|
|
1464 | |
1695 | |
1465 | block = MAX_BLOCKTIME; |
1696 | waittime = MAX_BLOCKTIME; |
1466 | |
1697 | |
1467 | if (timercnt) |
1698 | if (timercnt) |
1468 | { |
1699 | { |
1469 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
1700 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
1470 | if (block > to) block = to; |
1701 | if (waittime > to) waittime = to; |
1471 | } |
1702 | } |
1472 | |
1703 | |
1473 | #if EV_PERIODIC_ENABLE |
1704 | #if EV_PERIODIC_ENABLE |
1474 | if (periodiccnt) |
1705 | if (periodiccnt) |
1475 | { |
1706 | { |
1476 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
1707 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
1477 | if (block > to) block = to; |
1708 | if (waittime > to) waittime = to; |
1478 | } |
1709 | } |
1479 | #endif |
1710 | #endif |
1480 | |
1711 | |
1481 | if (expect_false (block < 0.)) block = 0.; |
1712 | if (expect_false (waittime < timeout_blocktime)) |
|
|
1713 | waittime = timeout_blocktime; |
|
|
1714 | |
|
|
1715 | sleeptime = waittime - backend_fudge; |
|
|
1716 | |
|
|
1717 | if (expect_true (sleeptime > io_blocktime)) |
|
|
1718 | sleeptime = io_blocktime; |
|
|
1719 | |
|
|
1720 | if (sleeptime) |
|
|
1721 | { |
|
|
1722 | ev_sleep (sleeptime); |
|
|
1723 | waittime -= sleeptime; |
|
|
1724 | } |
1482 | } |
1725 | } |
1483 | |
1726 | |
1484 | ++loop_count; |
1727 | ++loop_count; |
1485 | backend_poll (EV_A_ block); |
1728 | backend_poll (EV_A_ waittime); |
|
|
1729 | |
|
|
1730 | /* update ev_rt_now, do magic */ |
|
|
1731 | time_update (EV_A_ waittime + sleeptime); |
1486 | } |
1732 | } |
1487 | |
|
|
1488 | /* update ev_rt_now, do magic */ |
|
|
1489 | time_update (EV_A); |
|
|
1490 | |
1733 | |
1491 | /* queue pending timers and reschedule them */ |
1734 | /* queue pending timers and reschedule them */ |
1492 | timers_reify (EV_A); /* relative timers called last */ |
1735 | timers_reify (EV_A); /* relative timers called last */ |
1493 | #if EV_PERIODIC_ENABLE |
1736 | #if EV_PERIODIC_ENABLE |
1494 | periodics_reify (EV_A); /* absolute timers called first */ |
1737 | periodics_reify (EV_A); /* absolute timers called first */ |
… | |
… | |
1502 | /* queue check watchers, to be executed first */ |
1745 | /* queue check watchers, to be executed first */ |
1503 | if (expect_false (checkcnt)) |
1746 | if (expect_false (checkcnt)) |
1504 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1747 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1505 | |
1748 | |
1506 | call_pending (EV_A); |
1749 | call_pending (EV_A); |
1507 | |
|
|
1508 | } |
1750 | } |
1509 | while (expect_true (activecnt && !loop_done)); |
1751 | while (expect_true ( |
|
|
1752 | activecnt |
|
|
1753 | && !loop_done |
|
|
1754 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
|
|
1755 | )); |
1510 | |
1756 | |
1511 | if (loop_done == EVUNLOOP_ONE) |
1757 | if (loop_done == EVUNLOOP_ONE) |
1512 | loop_done = EVUNLOOP_CANCEL; |
1758 | loop_done = EVUNLOOP_CANCEL; |
1513 | } |
1759 | } |
1514 | |
1760 | |
… | |
… | |
1605 | |
1851 | |
1606 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1852 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1607 | |
1853 | |
1608 | ev_start (EV_A_ (W)w, 1); |
1854 | ev_start (EV_A_ (W)w, 1); |
1609 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
1855 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
1610 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1856 | wlist_add (&anfds[fd].head, (WL)w); |
1611 | |
1857 | |
1612 | fd_change (EV_A_ fd); |
1858 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
|
|
1859 | w->events &= ~EV_IOFDSET; |
1613 | } |
1860 | } |
1614 | |
1861 | |
1615 | void noinline |
1862 | void noinline |
1616 | ev_io_stop (EV_P_ ev_io *w) |
1863 | ev_io_stop (EV_P_ ev_io *w) |
1617 | { |
1864 | { |
… | |
… | |
1619 | if (expect_false (!ev_is_active (w))) |
1866 | if (expect_false (!ev_is_active (w))) |
1620 | return; |
1867 | return; |
1621 | |
1868 | |
1622 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
1869 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
1623 | |
1870 | |
1624 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
1871 | wlist_del (&anfds[w->fd].head, (WL)w); |
1625 | ev_stop (EV_A_ (W)w); |
1872 | ev_stop (EV_A_ (W)w); |
1626 | |
1873 | |
1627 | fd_change (EV_A_ w->fd); |
1874 | fd_change (EV_A_ w->fd, 1); |
1628 | } |
1875 | } |
1629 | |
1876 | |
1630 | void noinline |
1877 | void noinline |
1631 | ev_timer_start (EV_P_ ev_timer *w) |
1878 | ev_timer_start (EV_P_ ev_timer *w) |
1632 | { |
1879 | { |
… | |
… | |
1636 | ((WT)w)->at += mn_now; |
1883 | ((WT)w)->at += mn_now; |
1637 | |
1884 | |
1638 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1885 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1639 | |
1886 | |
1640 | ev_start (EV_A_ (W)w, ++timercnt); |
1887 | ev_start (EV_A_ (W)w, ++timercnt); |
1641 | array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2); |
1888 | array_needsize (WT, timers, timermax, timercnt, EMPTY2); |
1642 | timers [timercnt - 1] = w; |
1889 | timers [timercnt - 1] = (WT)w; |
1643 | upheap ((WT *)timers, timercnt - 1); |
1890 | upheap (timers, timercnt - 1); |
1644 | |
1891 | |
1645 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
1892 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
1646 | } |
1893 | } |
1647 | |
1894 | |
1648 | void noinline |
1895 | void noinline |
… | |
… | |
1650 | { |
1897 | { |
1651 | clear_pending (EV_A_ (W)w); |
1898 | clear_pending (EV_A_ (W)w); |
1652 | if (expect_false (!ev_is_active (w))) |
1899 | if (expect_false (!ev_is_active (w))) |
1653 | return; |
1900 | return; |
1654 | |
1901 | |
1655 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1902 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w)); |
1656 | |
1903 | |
1657 | { |
1904 | { |
1658 | int active = ((W)w)->active; |
1905 | int active = ((W)w)->active; |
1659 | |
1906 | |
1660 | if (expect_true (--active < --timercnt)) |
1907 | if (expect_true (--active < --timercnt)) |
1661 | { |
1908 | { |
1662 | timers [active] = timers [timercnt]; |
1909 | timers [active] = timers [timercnt]; |
1663 | adjustheap ((WT *)timers, timercnt, active); |
1910 | adjustheap (timers, timercnt, active); |
1664 | } |
1911 | } |
1665 | } |
1912 | } |
1666 | |
1913 | |
1667 | ((WT)w)->at -= mn_now; |
1914 | ((WT)w)->at -= mn_now; |
1668 | |
1915 | |
… | |
… | |
1675 | if (ev_is_active (w)) |
1922 | if (ev_is_active (w)) |
1676 | { |
1923 | { |
1677 | if (w->repeat) |
1924 | if (w->repeat) |
1678 | { |
1925 | { |
1679 | ((WT)w)->at = mn_now + w->repeat; |
1926 | ((WT)w)->at = mn_now + w->repeat; |
1680 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1927 | adjustheap (timers, timercnt, ((W)w)->active - 1); |
1681 | } |
1928 | } |
1682 | else |
1929 | else |
1683 | ev_timer_stop (EV_A_ w); |
1930 | ev_timer_stop (EV_A_ w); |
1684 | } |
1931 | } |
1685 | else if (w->repeat) |
1932 | else if (w->repeat) |
… | |
… | |
1706 | } |
1953 | } |
1707 | else |
1954 | else |
1708 | ((WT)w)->at = w->offset; |
1955 | ((WT)w)->at = w->offset; |
1709 | |
1956 | |
1710 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1957 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1711 | array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); |
1958 | array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2); |
1712 | periodics [periodiccnt - 1] = w; |
1959 | periodics [periodiccnt - 1] = (WT)w; |
1713 | upheap ((WT *)periodics, periodiccnt - 1); |
1960 | upheap (periodics, periodiccnt - 1); |
1714 | |
1961 | |
1715 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
1962 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
1716 | } |
1963 | } |
1717 | |
1964 | |
1718 | void noinline |
1965 | void noinline |
… | |
… | |
1720 | { |
1967 | { |
1721 | clear_pending (EV_A_ (W)w); |
1968 | clear_pending (EV_A_ (W)w); |
1722 | if (expect_false (!ev_is_active (w))) |
1969 | if (expect_false (!ev_is_active (w))) |
1723 | return; |
1970 | return; |
1724 | |
1971 | |
1725 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1972 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w)); |
1726 | |
1973 | |
1727 | { |
1974 | { |
1728 | int active = ((W)w)->active; |
1975 | int active = ((W)w)->active; |
1729 | |
1976 | |
1730 | if (expect_true (--active < --periodiccnt)) |
1977 | if (expect_true (--active < --periodiccnt)) |
1731 | { |
1978 | { |
1732 | periodics [active] = periodics [periodiccnt]; |
1979 | periodics [active] = periodics [periodiccnt]; |
1733 | adjustheap ((WT *)periodics, periodiccnt, active); |
1980 | adjustheap (periodics, periodiccnt, active); |
1734 | } |
1981 | } |
1735 | } |
1982 | } |
1736 | |
1983 | |
1737 | ev_stop (EV_A_ (W)w); |
1984 | ev_stop (EV_A_ (W)w); |
1738 | } |
1985 | } |
… | |
… | |
1759 | if (expect_false (ev_is_active (w))) |
2006 | if (expect_false (ev_is_active (w))) |
1760 | return; |
2007 | return; |
1761 | |
2008 | |
1762 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2009 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1763 | |
2010 | |
|
|
2011 | evpipe_init (EV_A); |
|
|
2012 | |
|
|
2013 | { |
|
|
2014 | #ifndef _WIN32 |
|
|
2015 | sigset_t full, prev; |
|
|
2016 | sigfillset (&full); |
|
|
2017 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2018 | #endif |
|
|
2019 | |
|
|
2020 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
|
|
2021 | |
|
|
2022 | #ifndef _WIN32 |
|
|
2023 | sigprocmask (SIG_SETMASK, &prev, 0); |
|
|
2024 | #endif |
|
|
2025 | } |
|
|
2026 | |
1764 | ev_start (EV_A_ (W)w, 1); |
2027 | ev_start (EV_A_ (W)w, 1); |
1765 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
|
|
1766 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
2028 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
1767 | |
2029 | |
1768 | if (!((WL)w)->next) |
2030 | if (!((WL)w)->next) |
1769 | { |
2031 | { |
1770 | #if _WIN32 |
2032 | #if _WIN32 |
1771 | signal (w->signum, sighandler); |
2033 | signal (w->signum, ev_sighandler); |
1772 | #else |
2034 | #else |
1773 | struct sigaction sa; |
2035 | struct sigaction sa; |
1774 | sa.sa_handler = sighandler; |
2036 | sa.sa_handler = ev_sighandler; |
1775 | sigfillset (&sa.sa_mask); |
2037 | sigfillset (&sa.sa_mask); |
1776 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2038 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1777 | sigaction (w->signum, &sa, 0); |
2039 | sigaction (w->signum, &sa, 0); |
1778 | #endif |
2040 | #endif |
1779 | } |
2041 | } |
… | |
… | |
1784 | { |
2046 | { |
1785 | clear_pending (EV_A_ (W)w); |
2047 | clear_pending (EV_A_ (W)w); |
1786 | if (expect_false (!ev_is_active (w))) |
2048 | if (expect_false (!ev_is_active (w))) |
1787 | return; |
2049 | return; |
1788 | |
2050 | |
1789 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
2051 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
1790 | ev_stop (EV_A_ (W)w); |
2052 | ev_stop (EV_A_ (W)w); |
1791 | |
2053 | |
1792 | if (!signals [w->signum - 1].head) |
2054 | if (!signals [w->signum - 1].head) |
1793 | signal (w->signum, SIG_DFL); |
2055 | signal (w->signum, SIG_DFL); |
1794 | } |
2056 | } |
… | |
… | |
1801 | #endif |
2063 | #endif |
1802 | if (expect_false (ev_is_active (w))) |
2064 | if (expect_false (ev_is_active (w))) |
1803 | return; |
2065 | return; |
1804 | |
2066 | |
1805 | ev_start (EV_A_ (W)w, 1); |
2067 | ev_start (EV_A_ (W)w, 1); |
1806 | wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2068 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1807 | } |
2069 | } |
1808 | |
2070 | |
1809 | void |
2071 | void |
1810 | ev_child_stop (EV_P_ ev_child *w) |
2072 | ev_child_stop (EV_P_ ev_child *w) |
1811 | { |
2073 | { |
1812 | clear_pending (EV_A_ (W)w); |
2074 | clear_pending (EV_A_ (W)w); |
1813 | if (expect_false (!ev_is_active (w))) |
2075 | if (expect_false (!ev_is_active (w))) |
1814 | return; |
2076 | return; |
1815 | |
2077 | |
1816 | wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2078 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1817 | ev_stop (EV_A_ (W)w); |
2079 | ev_stop (EV_A_ (W)w); |
1818 | } |
2080 | } |
1819 | |
2081 | |
1820 | #if EV_STAT_ENABLE |
2082 | #if EV_STAT_ENABLE |
1821 | |
2083 | |
… | |
… | |
2163 | |
2425 | |
2164 | #if EV_EMBED_ENABLE |
2426 | #if EV_EMBED_ENABLE |
2165 | void noinline |
2427 | void noinline |
2166 | ev_embed_sweep (EV_P_ ev_embed *w) |
2428 | ev_embed_sweep (EV_P_ ev_embed *w) |
2167 | { |
2429 | { |
2168 | ev_loop (w->loop, EVLOOP_NONBLOCK); |
2430 | ev_loop (w->other, EVLOOP_NONBLOCK); |
2169 | } |
2431 | } |
2170 | |
2432 | |
2171 | static void |
2433 | static void |
2172 | embed_cb (EV_P_ ev_io *io, int revents) |
2434 | embed_io_cb (EV_P_ ev_io *io, int revents) |
2173 | { |
2435 | { |
2174 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
2436 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
2175 | |
2437 | |
2176 | if (ev_cb (w)) |
2438 | if (ev_cb (w)) |
2177 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2439 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2178 | else |
2440 | else |
2179 | ev_embed_sweep (loop, w); |
2441 | ev_loop (w->other, EVLOOP_NONBLOCK); |
2180 | } |
2442 | } |
|
|
2443 | |
|
|
2444 | static void |
|
|
2445 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
|
|
2446 | { |
|
|
2447 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
|
|
2448 | |
|
|
2449 | { |
|
|
2450 | struct ev_loop *loop = w->other; |
|
|
2451 | |
|
|
2452 | while (fdchangecnt) |
|
|
2453 | { |
|
|
2454 | fd_reify (EV_A); |
|
|
2455 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
2456 | } |
|
|
2457 | } |
|
|
2458 | } |
|
|
2459 | |
|
|
2460 | #if 0 |
|
|
2461 | static void |
|
|
2462 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
|
|
2463 | { |
|
|
2464 | ev_idle_stop (EV_A_ idle); |
|
|
2465 | } |
|
|
2466 | #endif |
2181 | |
2467 | |
2182 | void |
2468 | void |
2183 | ev_embed_start (EV_P_ ev_embed *w) |
2469 | ev_embed_start (EV_P_ ev_embed *w) |
2184 | { |
2470 | { |
2185 | if (expect_false (ev_is_active (w))) |
2471 | if (expect_false (ev_is_active (w))) |
2186 | return; |
2472 | return; |
2187 | |
2473 | |
2188 | { |
2474 | { |
2189 | struct ev_loop *loop = w->loop; |
2475 | struct ev_loop *loop = w->other; |
2190 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2476 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2191 | ev_io_init (&w->io, embed_cb, backend_fd, EV_READ); |
2477 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2192 | } |
2478 | } |
2193 | |
2479 | |
2194 | ev_set_priority (&w->io, ev_priority (w)); |
2480 | ev_set_priority (&w->io, ev_priority (w)); |
2195 | ev_io_start (EV_A_ &w->io); |
2481 | ev_io_start (EV_A_ &w->io); |
2196 | |
2482 | |
|
|
2483 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
|
|
2484 | ev_set_priority (&w->prepare, EV_MINPRI); |
|
|
2485 | ev_prepare_start (EV_A_ &w->prepare); |
|
|
2486 | |
|
|
2487 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
|
|
2488 | |
2197 | ev_start (EV_A_ (W)w, 1); |
2489 | ev_start (EV_A_ (W)w, 1); |
2198 | } |
2490 | } |
2199 | |
2491 | |
2200 | void |
2492 | void |
2201 | ev_embed_stop (EV_P_ ev_embed *w) |
2493 | ev_embed_stop (EV_P_ ev_embed *w) |
… | |
… | |
2203 | clear_pending (EV_A_ (W)w); |
2495 | clear_pending (EV_A_ (W)w); |
2204 | if (expect_false (!ev_is_active (w))) |
2496 | if (expect_false (!ev_is_active (w))) |
2205 | return; |
2497 | return; |
2206 | |
2498 | |
2207 | ev_io_stop (EV_A_ &w->io); |
2499 | ev_io_stop (EV_A_ &w->io); |
|
|
2500 | ev_prepare_stop (EV_A_ &w->prepare); |
2208 | |
2501 | |
2209 | ev_stop (EV_A_ (W)w); |
2502 | ev_stop (EV_A_ (W)w); |
2210 | } |
2503 | } |
2211 | #endif |
2504 | #endif |
2212 | |
2505 | |
… | |
… | |
2237 | |
2530 | |
2238 | ev_stop (EV_A_ (W)w); |
2531 | ev_stop (EV_A_ (W)w); |
2239 | } |
2532 | } |
2240 | #endif |
2533 | #endif |
2241 | |
2534 | |
|
|
2535 | #if EV_ASYNC_ENABLE |
|
|
2536 | void |
|
|
2537 | ev_async_start (EV_P_ ev_async *w) |
|
|
2538 | { |
|
|
2539 | if (expect_false (ev_is_active (w))) |
|
|
2540 | return; |
|
|
2541 | |
|
|
2542 | evpipe_init (EV_A); |
|
|
2543 | |
|
|
2544 | ev_start (EV_A_ (W)w, ++asynccnt); |
|
|
2545 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
|
|
2546 | asyncs [asynccnt - 1] = w; |
|
|
2547 | } |
|
|
2548 | |
|
|
2549 | void |
|
|
2550 | ev_async_stop (EV_P_ ev_async *w) |
|
|
2551 | { |
|
|
2552 | clear_pending (EV_A_ (W)w); |
|
|
2553 | if (expect_false (!ev_is_active (w))) |
|
|
2554 | return; |
|
|
2555 | |
|
|
2556 | { |
|
|
2557 | int active = ((W)w)->active; |
|
|
2558 | asyncs [active - 1] = asyncs [--asynccnt]; |
|
|
2559 | ((W)asyncs [active - 1])->active = active; |
|
|
2560 | } |
|
|
2561 | |
|
|
2562 | ev_stop (EV_A_ (W)w); |
|
|
2563 | } |
|
|
2564 | |
|
|
2565 | void |
|
|
2566 | ev_async_send (EV_P_ ev_async *w) |
|
|
2567 | { |
|
|
2568 | w->sent = 1; |
|
|
2569 | evpipe_write (EV_A_ &gotasync); |
|
|
2570 | } |
|
|
2571 | #endif |
|
|
2572 | |
2242 | /*****************************************************************************/ |
2573 | /*****************************************************************************/ |
2243 | |
2574 | |
2244 | struct ev_once |
2575 | struct ev_once |
2245 | { |
2576 | { |
2246 | ev_io io; |
2577 | ev_io io; |
… | |
… | |
2301 | ev_timer_set (&once->to, timeout, 0.); |
2632 | ev_timer_set (&once->to, timeout, 0.); |
2302 | ev_timer_start (EV_A_ &once->to); |
2633 | ev_timer_start (EV_A_ &once->to); |
2303 | } |
2634 | } |
2304 | } |
2635 | } |
2305 | |
2636 | |
|
|
2637 | #if EV_MULTIPLICITY |
|
|
2638 | #include "ev_wrap.h" |
|
|
2639 | #endif |
|
|
2640 | |
2306 | #ifdef __cplusplus |
2641 | #ifdef __cplusplus |
2307 | } |
2642 | } |
2308 | #endif |
2643 | #endif |
2309 | |
2644 | |