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 |
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169 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
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170 | # define EV_USE_MONOTONIC 1 |
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171 | # else |
144 | # define EV_USE_MONOTONIC 0 |
172 | # define EV_USE_MONOTONIC 0 |
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173 | # endif |
145 | #endif |
174 | #endif |
146 | |
175 | |
147 | #ifndef EV_USE_REALTIME |
176 | #ifndef EV_USE_REALTIME |
148 | # define EV_USE_REALTIME 0 |
177 | # define EV_USE_REALTIME 0 |
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178 | #endif |
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179 | |
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180 | #ifndef EV_USE_NANOSLEEP |
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181 | # if _POSIX_C_SOURCE >= 199309L |
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182 | # define EV_USE_NANOSLEEP 1 |
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183 | # else |
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184 | # define EV_USE_NANOSLEEP 0 |
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185 | # endif |
149 | #endif |
186 | #endif |
150 | |
187 | |
151 | #ifndef EV_USE_SELECT |
188 | #ifndef EV_USE_SELECT |
152 | # define EV_USE_SELECT 1 |
189 | # define EV_USE_SELECT 1 |
153 | #endif |
190 | #endif |
… | |
… | |
159 | # define EV_USE_POLL 1 |
196 | # define EV_USE_POLL 1 |
160 | # endif |
197 | # endif |
161 | #endif |
198 | #endif |
162 | |
199 | |
163 | #ifndef EV_USE_EPOLL |
200 | #ifndef EV_USE_EPOLL |
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201 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
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202 | # define EV_USE_EPOLL 1 |
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203 | # else |
164 | # define EV_USE_EPOLL 0 |
204 | # define EV_USE_EPOLL 0 |
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205 | # endif |
165 | #endif |
206 | #endif |
166 | |
207 | |
167 | #ifndef EV_USE_KQUEUE |
208 | #ifndef EV_USE_KQUEUE |
168 | # define EV_USE_KQUEUE 0 |
209 | # define EV_USE_KQUEUE 0 |
169 | #endif |
210 | #endif |
… | |
… | |
171 | #ifndef EV_USE_PORT |
212 | #ifndef EV_USE_PORT |
172 | # define EV_USE_PORT 0 |
213 | # define EV_USE_PORT 0 |
173 | #endif |
214 | #endif |
174 | |
215 | |
175 | #ifndef EV_USE_INOTIFY |
216 | #ifndef EV_USE_INOTIFY |
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217 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
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218 | # define EV_USE_INOTIFY 1 |
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219 | # else |
176 | # define EV_USE_INOTIFY 0 |
220 | # define EV_USE_INOTIFY 0 |
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221 | # endif |
177 | #endif |
222 | #endif |
178 | |
223 | |
179 | #ifndef EV_PID_HASHSIZE |
224 | #ifndef EV_PID_HASHSIZE |
180 | # if EV_MINIMAL |
225 | # if EV_MINIMAL |
181 | # define EV_PID_HASHSIZE 1 |
226 | # define EV_PID_HASHSIZE 1 |
… | |
… | |
190 | # else |
235 | # else |
191 | # define EV_INOTIFY_HASHSIZE 16 |
236 | # define EV_INOTIFY_HASHSIZE 16 |
192 | # endif |
237 | # endif |
193 | #endif |
238 | #endif |
194 | |
239 | |
195 | /**/ |
240 | #ifndef EV_USE_EVENTFD |
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241 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
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242 | # define EV_USE_EVENTFD 1 |
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243 | # else |
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244 | # define EV_USE_EVENTFD 0 |
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245 | # endif |
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246 | #endif |
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247 | |
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248 | #if 0 /* debugging */ |
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249 | # define EV_VERIFY 3 |
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250 | # define EV_USE_4HEAP 1 |
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251 | # define EV_HEAP_CACHE_AT 1 |
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252 | #endif |
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253 | |
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254 | #ifndef EV_VERIFY |
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255 | # define EV_VERIFY !EV_MINIMAL |
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256 | #endif |
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257 | |
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258 | #ifndef EV_USE_4HEAP |
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259 | # define EV_USE_4HEAP !EV_MINIMAL |
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260 | #endif |
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261 | |
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262 | #ifndef EV_HEAP_CACHE_AT |
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263 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
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264 | #endif |
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265 | |
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266 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
196 | |
267 | |
197 | #ifndef CLOCK_MONOTONIC |
268 | #ifndef CLOCK_MONOTONIC |
198 | # undef EV_USE_MONOTONIC |
269 | # undef EV_USE_MONOTONIC |
199 | # define EV_USE_MONOTONIC 0 |
270 | # define EV_USE_MONOTONIC 0 |
200 | #endif |
271 | #endif |
… | |
… | |
202 | #ifndef CLOCK_REALTIME |
273 | #ifndef CLOCK_REALTIME |
203 | # undef EV_USE_REALTIME |
274 | # undef EV_USE_REALTIME |
204 | # define EV_USE_REALTIME 0 |
275 | # define EV_USE_REALTIME 0 |
205 | #endif |
276 | #endif |
206 | |
277 | |
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278 | #if !EV_STAT_ENABLE |
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279 | # undef EV_USE_INOTIFY |
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280 | # define EV_USE_INOTIFY 0 |
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281 | #endif |
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282 | |
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283 | #if !EV_USE_NANOSLEEP |
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284 | # ifndef _WIN32 |
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285 | # include <sys/select.h> |
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286 | # endif |
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287 | #endif |
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288 | |
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289 | #if EV_USE_INOTIFY |
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290 | # include <sys/inotify.h> |
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291 | #endif |
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292 | |
207 | #if EV_SELECT_IS_WINSOCKET |
293 | #if EV_SELECT_IS_WINSOCKET |
208 | # include <winsock.h> |
294 | # include <winsock.h> |
209 | #endif |
295 | #endif |
210 | |
296 | |
211 | #if !EV_STAT_ENABLE |
297 | #if EV_USE_EVENTFD |
212 | # define EV_USE_INOTIFY 0 |
298 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
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299 | # include <stdint.h> |
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300 | # ifdef __cplusplus |
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301 | extern "C" { |
213 | #endif |
302 | # endif |
214 | |
303 | int eventfd (unsigned int initval, int flags); |
215 | #if EV_USE_INOTIFY |
304 | # ifdef __cplusplus |
216 | # include <sys/inotify.h> |
305 | } |
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306 | # endif |
217 | #endif |
307 | #endif |
218 | |
308 | |
219 | /**/ |
309 | /**/ |
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310 | |
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311 | #if EV_VERIFY >= 3 |
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312 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
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313 | #else |
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314 | # define EV_FREQUENT_CHECK do { } while (0) |
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315 | #endif |
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316 | |
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317 | /* |
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318 | * This is used to avoid floating point rounding problems. |
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319 | * It is added to ev_rt_now when scheduling periodics |
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320 | * to ensure progress, time-wise, even when rounding |
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321 | * errors are against us. |
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322 | * This value is good at least till the year 4000. |
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323 | * Better solutions welcome. |
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324 | */ |
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325 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
220 | |
326 | |
221 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
327 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
222 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
328 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
223 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds */ |
329 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
224 | |
330 | |
225 | #if __GNUC__ >= 3 |
331 | #if __GNUC__ >= 4 |
226 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
332 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
227 | # define inline_size static inline /* inline for codesize */ |
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228 | # if EV_MINIMAL |
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229 | # define noinline __attribute__ ((noinline)) |
333 | # define noinline __attribute__ ((noinline)) |
230 | # define inline_speed static noinline |
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231 | # else |
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232 | # define noinline |
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233 | # define inline_speed static inline |
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234 | # endif |
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235 | #else |
334 | #else |
236 | # define expect(expr,value) (expr) |
335 | # define expect(expr,value) (expr) |
237 | # define inline_speed static |
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238 | # define inline_size static |
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239 | # define noinline |
336 | # define noinline |
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337 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
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338 | # define inline |
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339 | # endif |
240 | #endif |
340 | #endif |
241 | |
341 | |
242 | #define expect_false(expr) expect ((expr) != 0, 0) |
342 | #define expect_false(expr) expect ((expr) != 0, 0) |
243 | #define expect_true(expr) expect ((expr) != 0, 1) |
343 | #define expect_true(expr) expect ((expr) != 0, 1) |
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344 | #define inline_size static inline |
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345 | |
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346 | #if EV_MINIMAL |
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347 | # define inline_speed static noinline |
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348 | #else |
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349 | # define inline_speed static inline |
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350 | #endif |
244 | |
351 | |
245 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
352 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
246 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
353 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
247 | |
354 | |
248 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
355 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
… | |
… | |
250 | |
357 | |
251 | typedef ev_watcher *W; |
358 | typedef ev_watcher *W; |
252 | typedef ev_watcher_list *WL; |
359 | typedef ev_watcher_list *WL; |
253 | typedef ev_watcher_time *WT; |
360 | typedef ev_watcher_time *WT; |
254 | |
361 | |
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362 | #define ev_active(w) ((W)(w))->active |
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363 | #define ev_at(w) ((WT)(w))->at |
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364 | |
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365 | #if EV_USE_MONOTONIC |
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366 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
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367 | /* giving it a reasonably high chance of working on typical architetcures */ |
255 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
368 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
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369 | #endif |
256 | |
370 | |
257 | #ifdef _WIN32 |
371 | #ifdef _WIN32 |
258 | # include "ev_win32.c" |
372 | # include "ev_win32.c" |
259 | #endif |
373 | #endif |
260 | |
374 | |
… | |
… | |
281 | perror (msg); |
395 | perror (msg); |
282 | abort (); |
396 | abort (); |
283 | } |
397 | } |
284 | } |
398 | } |
285 | |
399 | |
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400 | static void * |
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401 | ev_realloc_emul (void *ptr, long size) |
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402 | { |
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403 | /* some systems, notably openbsd and darwin, fail to properly |
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404 | * implement realloc (x, 0) (as required by both ansi c-98 and |
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405 | * the single unix specification, so work around them here. |
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406 | */ |
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407 | |
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408 | if (size) |
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409 | return realloc (ptr, size); |
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410 | |
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411 | free (ptr); |
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412 | return 0; |
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413 | } |
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414 | |
286 | static void *(*alloc)(void *ptr, long size); |
415 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
287 | |
416 | |
288 | void |
417 | void |
289 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
418 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
290 | { |
419 | { |
291 | alloc = cb; |
420 | alloc = cb; |
292 | } |
421 | } |
293 | |
422 | |
294 | inline_speed void * |
423 | inline_speed void * |
295 | ev_realloc (void *ptr, long size) |
424 | ev_realloc (void *ptr, long size) |
296 | { |
425 | { |
297 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
426 | ptr = alloc (ptr, size); |
298 | |
427 | |
299 | if (!ptr && size) |
428 | if (!ptr && size) |
300 | { |
429 | { |
301 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
430 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
302 | abort (); |
431 | abort (); |
… | |
… | |
325 | W w; |
454 | W w; |
326 | int events; |
455 | int events; |
327 | } ANPENDING; |
456 | } ANPENDING; |
328 | |
457 | |
329 | #if EV_USE_INOTIFY |
458 | #if EV_USE_INOTIFY |
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459 | /* hash table entry per inotify-id */ |
330 | typedef struct |
460 | typedef struct |
331 | { |
461 | { |
332 | WL head; |
462 | WL head; |
333 | } ANFS; |
463 | } ANFS; |
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464 | #endif |
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465 | |
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466 | /* Heap Entry */ |
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467 | #if EV_HEAP_CACHE_AT |
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468 | typedef struct { |
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469 | ev_tstamp at; |
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470 | WT w; |
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471 | } ANHE; |
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472 | |
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473 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
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474 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
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475 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
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476 | #else |
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477 | typedef WT ANHE; |
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478 | |
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479 | #define ANHE_w(he) (he) |
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480 | #define ANHE_at(he) (he)->at |
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481 | #define ANHE_at_cache(he) |
334 | #endif |
482 | #endif |
335 | |
483 | |
336 | #if EV_MULTIPLICITY |
484 | #if EV_MULTIPLICITY |
337 | |
485 | |
338 | struct ev_loop |
486 | struct ev_loop |
… | |
… | |
396 | { |
544 | { |
397 | return ev_rt_now; |
545 | return ev_rt_now; |
398 | } |
546 | } |
399 | #endif |
547 | #endif |
400 | |
548 | |
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549 | void |
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550 | ev_sleep (ev_tstamp delay) |
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551 | { |
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552 | if (delay > 0.) |
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553 | { |
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554 | #if EV_USE_NANOSLEEP |
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555 | struct timespec ts; |
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556 | |
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557 | ts.tv_sec = (time_t)delay; |
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558 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
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559 | |
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560 | nanosleep (&ts, 0); |
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561 | #elif defined(_WIN32) |
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|
562 | Sleep ((unsigned long)(delay * 1e3)); |
|
|
563 | #else |
|
|
564 | struct timeval tv; |
|
|
565 | |
|
|
566 | tv.tv_sec = (time_t)delay; |
|
|
567 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
|
|
568 | |
|
|
569 | select (0, 0, 0, 0, &tv); |
|
|
570 | #endif |
|
|
571 | } |
|
|
572 | } |
|
|
573 | |
|
|
574 | /*****************************************************************************/ |
|
|
575 | |
|
|
576 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
|
|
577 | |
401 | int inline_size |
578 | int inline_size |
402 | array_nextsize (int elem, int cur, int cnt) |
579 | array_nextsize (int elem, int cur, int cnt) |
403 | { |
580 | { |
404 | int ncur = cur + 1; |
581 | int ncur = cur + 1; |
405 | |
582 | |
406 | do |
583 | do |
407 | ncur <<= 1; |
584 | ncur <<= 1; |
408 | while (cnt > ncur); |
585 | while (cnt > ncur); |
409 | |
586 | |
410 | /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */ |
587 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
411 | if (elem * ncur > 4096) |
588 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
412 | { |
589 | { |
413 | ncur *= elem; |
590 | ncur *= elem; |
414 | ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095; |
591 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
415 | ncur = ncur - sizeof (void *) * 4; |
592 | ncur = ncur - sizeof (void *) * 4; |
416 | ncur /= elem; |
593 | ncur /= elem; |
417 | } |
594 | } |
418 | |
595 | |
419 | return ncur; |
596 | return ncur; |
420 | } |
597 | } |
421 | |
598 | |
422 | inline_speed void * |
599 | static noinline void * |
423 | array_realloc (int elem, void *base, int *cur, int cnt) |
600 | array_realloc (int elem, void *base, int *cur, int cnt) |
424 | { |
601 | { |
425 | *cur = array_nextsize (elem, *cur, cnt); |
602 | *cur = array_nextsize (elem, *cur, cnt); |
426 | return ev_realloc (base, elem * *cur); |
603 | return ev_realloc (base, elem * *cur); |
427 | } |
604 | } |
… | |
… | |
452 | |
629 | |
453 | void noinline |
630 | void noinline |
454 | ev_feed_event (EV_P_ void *w, int revents) |
631 | ev_feed_event (EV_P_ void *w, int revents) |
455 | { |
632 | { |
456 | W w_ = (W)w; |
633 | W w_ = (W)w; |
|
|
634 | int pri = ABSPRI (w_); |
457 | |
635 | |
458 | if (expect_false (w_->pending)) |
636 | if (expect_false (w_->pending)) |
|
|
637 | pendings [pri][w_->pending - 1].events |= revents; |
|
|
638 | else |
459 | { |
639 | { |
|
|
640 | w_->pending = ++pendingcnt [pri]; |
|
|
641 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
|
|
642 | pendings [pri][w_->pending - 1].w = w_; |
460 | pendings [ABSPRI (w_)][w_->pending - 1].events |= revents; |
643 | pendings [pri][w_->pending - 1].events = revents; |
461 | return; |
|
|
462 | } |
644 | } |
463 | |
|
|
464 | w_->pending = ++pendingcnt [ABSPRI (w_)]; |
|
|
465 | array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2); |
|
|
466 | pendings [ABSPRI (w_)][w_->pending - 1].w = w_; |
|
|
467 | pendings [ABSPRI (w_)][w_->pending - 1].events = revents; |
|
|
468 | } |
645 | } |
469 | |
646 | |
470 | void inline_size |
647 | void inline_speed |
471 | queue_events (EV_P_ W *events, int eventcnt, int type) |
648 | queue_events (EV_P_ W *events, int eventcnt, int type) |
472 | { |
649 | { |
473 | int i; |
650 | int i; |
474 | |
651 | |
475 | for (i = 0; i < eventcnt; ++i) |
652 | for (i = 0; i < eventcnt; ++i) |
… | |
… | |
507 | } |
684 | } |
508 | |
685 | |
509 | void |
686 | void |
510 | ev_feed_fd_event (EV_P_ int fd, int revents) |
687 | ev_feed_fd_event (EV_P_ int fd, int revents) |
511 | { |
688 | { |
|
|
689 | if (fd >= 0 && fd < anfdmax) |
512 | fd_event (EV_A_ fd, revents); |
690 | fd_event (EV_A_ fd, revents); |
513 | } |
691 | } |
514 | |
692 | |
515 | void inline_size |
693 | void inline_size |
516 | fd_reify (EV_P) |
694 | fd_reify (EV_P) |
517 | { |
695 | { |
… | |
… | |
521 | { |
699 | { |
522 | int fd = fdchanges [i]; |
700 | int fd = fdchanges [i]; |
523 | ANFD *anfd = anfds + fd; |
701 | ANFD *anfd = anfds + fd; |
524 | ev_io *w; |
702 | ev_io *w; |
525 | |
703 | |
526 | int events = 0; |
704 | unsigned char events = 0; |
527 | |
705 | |
528 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
706 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
529 | events |= w->events; |
707 | events |= (unsigned char)w->events; |
530 | |
708 | |
531 | #if EV_SELECT_IS_WINSOCKET |
709 | #if EV_SELECT_IS_WINSOCKET |
532 | if (events) |
710 | if (events) |
533 | { |
711 | { |
534 | unsigned long argp; |
712 | unsigned long argp; |
|
|
713 | #ifdef EV_FD_TO_WIN32_HANDLE |
|
|
714 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
715 | #else |
535 | anfd->handle = _get_osfhandle (fd); |
716 | anfd->handle = _get_osfhandle (fd); |
|
|
717 | #endif |
536 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
718 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
537 | } |
719 | } |
538 | #endif |
720 | #endif |
539 | |
721 | |
|
|
722 | { |
|
|
723 | unsigned char o_events = anfd->events; |
|
|
724 | unsigned char o_reify = anfd->reify; |
|
|
725 | |
540 | anfd->reify = 0; |
726 | anfd->reify = 0; |
541 | |
|
|
542 | backend_modify (EV_A_ fd, anfd->events, events); |
|
|
543 | anfd->events = events; |
727 | anfd->events = events; |
|
|
728 | |
|
|
729 | if (o_events != events || o_reify & EV_IOFDSET) |
|
|
730 | backend_modify (EV_A_ fd, o_events, events); |
|
|
731 | } |
544 | } |
732 | } |
545 | |
733 | |
546 | fdchangecnt = 0; |
734 | fdchangecnt = 0; |
547 | } |
735 | } |
548 | |
736 | |
549 | void inline_size |
737 | void inline_size |
550 | fd_change (EV_P_ int fd) |
738 | fd_change (EV_P_ int fd, int flags) |
551 | { |
739 | { |
552 | if (expect_false (anfds [fd].reify)) |
740 | unsigned char reify = anfds [fd].reify; |
553 | return; |
|
|
554 | |
|
|
555 | anfds [fd].reify = 1; |
741 | anfds [fd].reify |= flags; |
556 | |
742 | |
|
|
743 | if (expect_true (!reify)) |
|
|
744 | { |
557 | ++fdchangecnt; |
745 | ++fdchangecnt; |
558 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
746 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
559 | fdchanges [fdchangecnt - 1] = fd; |
747 | fdchanges [fdchangecnt - 1] = fd; |
|
|
748 | } |
560 | } |
749 | } |
561 | |
750 | |
562 | void inline_speed |
751 | void inline_speed |
563 | fd_kill (EV_P_ int fd) |
752 | fd_kill (EV_P_ int fd) |
564 | { |
753 | { |
… | |
… | |
615 | |
804 | |
616 | for (fd = 0; fd < anfdmax; ++fd) |
805 | for (fd = 0; fd < anfdmax; ++fd) |
617 | if (anfds [fd].events) |
806 | if (anfds [fd].events) |
618 | { |
807 | { |
619 | anfds [fd].events = 0; |
808 | anfds [fd].events = 0; |
620 | fd_change (EV_A_ fd); |
809 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
621 | } |
810 | } |
622 | } |
811 | } |
623 | |
812 | |
624 | /*****************************************************************************/ |
813 | /*****************************************************************************/ |
625 | |
814 | |
|
|
815 | /* |
|
|
816 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
|
|
817 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
|
|
818 | * the branching factor of the d-tree. |
|
|
819 | */ |
|
|
820 | |
|
|
821 | /* |
|
|
822 | * at the moment we allow libev the luxury of two heaps, |
|
|
823 | * a small-code-size 2-heap one and a ~1.5kb larger 4-heap |
|
|
824 | * which is more cache-efficient. |
|
|
825 | * the difference is about 5% with 50000+ watchers. |
|
|
826 | */ |
|
|
827 | #if EV_USE_4HEAP |
|
|
828 | |
|
|
829 | #define DHEAP 4 |
|
|
830 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
|
|
831 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
|
|
832 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
|
|
833 | |
|
|
834 | /* away from the root */ |
626 | void inline_speed |
835 | void inline_speed |
627 | upheap (WT *heap, int k) |
836 | downheap (ANHE *heap, int N, int k) |
628 | { |
837 | { |
629 | WT w = heap [k]; |
838 | ANHE he = heap [k]; |
|
|
839 | ANHE *E = heap + N + HEAP0; |
630 | |
840 | |
631 | while (k && heap [k >> 1]->at > w->at) |
841 | for (;;) |
632 | { |
|
|
633 | heap [k] = heap [k >> 1]; |
|
|
634 | ((W)heap [k])->active = k + 1; |
|
|
635 | k >>= 1; |
|
|
636 | } |
842 | { |
|
|
843 | ev_tstamp minat; |
|
|
844 | ANHE *minpos; |
|
|
845 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
637 | |
846 | |
|
|
847 | /* find minimum child */ |
|
|
848 | if (expect_true (pos + DHEAP - 1 < E)) |
|
|
849 | { |
|
|
850 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
851 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
852 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
853 | if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
854 | } |
|
|
855 | else if (pos < E) |
|
|
856 | { |
|
|
857 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
858 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
859 | if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
860 | if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
861 | } |
|
|
862 | else |
|
|
863 | break; |
|
|
864 | |
|
|
865 | if (ANHE_at (he) <= minat) |
|
|
866 | break; |
|
|
867 | |
|
|
868 | heap [k] = *minpos; |
|
|
869 | ev_active (ANHE_w (*minpos)) = k; |
|
|
870 | |
|
|
871 | k = minpos - heap; |
|
|
872 | } |
|
|
873 | |
638 | heap [k] = w; |
874 | heap [k] = he; |
639 | ((W)heap [k])->active = k + 1; |
875 | ev_active (ANHE_w (he)) = k; |
640 | |
|
|
641 | } |
876 | } |
642 | |
877 | |
|
|
878 | #else /* 4HEAP */ |
|
|
879 | |
|
|
880 | #define HEAP0 1 |
|
|
881 | #define HPARENT(k) ((k) >> 1) |
|
|
882 | #define UPHEAP_DONE(p,k) (!(p)) |
|
|
883 | |
|
|
884 | /* away from the root */ |
643 | void inline_speed |
885 | void inline_speed |
644 | downheap (WT *heap, int N, int k) |
886 | downheap (ANHE *heap, int N, int k) |
645 | { |
887 | { |
646 | WT w = heap [k]; |
888 | ANHE he = heap [k]; |
647 | |
889 | |
648 | while (k < (N >> 1)) |
890 | for (;;) |
649 | { |
891 | { |
650 | int j = k << 1; |
892 | int c = k << 1; |
651 | |
893 | |
652 | if (j + 1 < N && heap [j]->at > heap [j + 1]->at) |
894 | if (c > N + HEAP0 - 1) |
653 | ++j; |
|
|
654 | |
|
|
655 | if (w->at <= heap [j]->at) |
|
|
656 | break; |
895 | break; |
657 | |
896 | |
|
|
897 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
|
|
898 | ? 1 : 0; |
|
|
899 | |
|
|
900 | if (ANHE_at (he) <= ANHE_at (heap [c])) |
|
|
901 | break; |
|
|
902 | |
658 | heap [k] = heap [j]; |
903 | heap [k] = heap [c]; |
659 | ((W)heap [k])->active = k + 1; |
904 | ev_active (ANHE_w (heap [k])) = k; |
|
|
905 | |
660 | k = j; |
906 | k = c; |
661 | } |
907 | } |
662 | |
908 | |
663 | heap [k] = w; |
909 | heap [k] = he; |
664 | ((W)heap [k])->active = k + 1; |
910 | ev_active (ANHE_w (he)) = k; |
|
|
911 | } |
|
|
912 | #endif |
|
|
913 | |
|
|
914 | /* towards the root */ |
|
|
915 | void inline_speed |
|
|
916 | upheap (ANHE *heap, int k) |
|
|
917 | { |
|
|
918 | ANHE he = heap [k]; |
|
|
919 | |
|
|
920 | for (;;) |
|
|
921 | { |
|
|
922 | int p = HPARENT (k); |
|
|
923 | |
|
|
924 | if (UPHEAP_DONE (p, k) || ANHE_at (heap [p]) <= ANHE_at (he)) |
|
|
925 | break; |
|
|
926 | |
|
|
927 | heap [k] = heap [p]; |
|
|
928 | ev_active (ANHE_w (heap [k])) = k; |
|
|
929 | k = p; |
|
|
930 | } |
|
|
931 | |
|
|
932 | heap [k] = he; |
|
|
933 | ev_active (ANHE_w (he)) = k; |
665 | } |
934 | } |
666 | |
935 | |
667 | void inline_size |
936 | void inline_size |
668 | adjustheap (WT *heap, int N, int k) |
937 | adjustheap (ANHE *heap, int N, int k) |
669 | { |
938 | { |
|
|
939 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
670 | upheap (heap, k); |
940 | upheap (heap, k); |
|
|
941 | else |
671 | downheap (heap, N, k); |
942 | downheap (heap, N, k); |
|
|
943 | } |
|
|
944 | |
|
|
945 | /* rebuild the heap: this function is used only once and executed rarely */ |
|
|
946 | void inline_size |
|
|
947 | reheap (ANHE *heap, int N) |
|
|
948 | { |
|
|
949 | int i; |
|
|
950 | |
|
|
951 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
|
|
952 | /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */ |
|
|
953 | for (i = 0; i < N; ++i) |
|
|
954 | upheap (heap, i + HEAP0); |
672 | } |
955 | } |
673 | |
956 | |
674 | /*****************************************************************************/ |
957 | /*****************************************************************************/ |
675 | |
958 | |
676 | typedef struct |
959 | typedef struct |
677 | { |
960 | { |
678 | WL head; |
961 | WL head; |
679 | sig_atomic_t volatile gotsig; |
962 | EV_ATOMIC_T gotsig; |
680 | } ANSIG; |
963 | } ANSIG; |
681 | |
964 | |
682 | static ANSIG *signals; |
965 | static ANSIG *signals; |
683 | static int signalmax; |
966 | static int signalmax; |
684 | |
967 | |
685 | static int sigpipe [2]; |
968 | static EV_ATOMIC_T gotsig; |
686 | static sig_atomic_t volatile gotsig; |
|
|
687 | static ev_io sigev; |
|
|
688 | |
969 | |
689 | void inline_size |
970 | void inline_size |
690 | signals_init (ANSIG *base, int count) |
971 | signals_init (ANSIG *base, int count) |
691 | { |
972 | { |
692 | while (count--) |
973 | while (count--) |
… | |
… | |
696 | |
977 | |
697 | ++base; |
978 | ++base; |
698 | } |
979 | } |
699 | } |
980 | } |
700 | |
981 | |
701 | static void |
982 | /*****************************************************************************/ |
702 | sighandler (int signum) |
|
|
703 | { |
|
|
704 | #if _WIN32 |
|
|
705 | signal (signum, sighandler); |
|
|
706 | #endif |
|
|
707 | |
983 | |
708 | signals [signum - 1].gotsig = 1; |
|
|
709 | |
|
|
710 | if (!gotsig) |
|
|
711 | { |
|
|
712 | int old_errno = errno; |
|
|
713 | gotsig = 1; |
|
|
714 | write (sigpipe [1], &signum, 1); |
|
|
715 | errno = old_errno; |
|
|
716 | } |
|
|
717 | } |
|
|
718 | |
|
|
719 | void noinline |
|
|
720 | ev_feed_signal_event (EV_P_ int signum) |
|
|
721 | { |
|
|
722 | WL w; |
|
|
723 | |
|
|
724 | #if EV_MULTIPLICITY |
|
|
725 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
726 | #endif |
|
|
727 | |
|
|
728 | --signum; |
|
|
729 | |
|
|
730 | if (signum < 0 || signum >= signalmax) |
|
|
731 | return; |
|
|
732 | |
|
|
733 | signals [signum].gotsig = 0; |
|
|
734 | |
|
|
735 | for (w = signals [signum].head; w; w = w->next) |
|
|
736 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
737 | } |
|
|
738 | |
|
|
739 | static void |
|
|
740 | sigcb (EV_P_ ev_io *iow, int revents) |
|
|
741 | { |
|
|
742 | int signum; |
|
|
743 | |
|
|
744 | read (sigpipe [0], &revents, 1); |
|
|
745 | gotsig = 0; |
|
|
746 | |
|
|
747 | for (signum = signalmax; signum--; ) |
|
|
748 | if (signals [signum].gotsig) |
|
|
749 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
750 | } |
|
|
751 | |
|
|
752 | void inline_size |
984 | void inline_speed |
753 | fd_intern (int fd) |
985 | fd_intern (int fd) |
754 | { |
986 | { |
755 | #ifdef _WIN32 |
987 | #ifdef _WIN32 |
756 | int arg = 1; |
988 | int arg = 1; |
757 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
989 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
… | |
… | |
760 | fcntl (fd, F_SETFL, O_NONBLOCK); |
992 | fcntl (fd, F_SETFL, O_NONBLOCK); |
761 | #endif |
993 | #endif |
762 | } |
994 | } |
763 | |
995 | |
764 | static void noinline |
996 | static void noinline |
765 | siginit (EV_P) |
997 | evpipe_init (EV_P) |
766 | { |
998 | { |
|
|
999 | if (!ev_is_active (&pipeev)) |
|
|
1000 | { |
|
|
1001 | #if EV_USE_EVENTFD |
|
|
1002 | if ((evfd = eventfd (0, 0)) >= 0) |
|
|
1003 | { |
|
|
1004 | evpipe [0] = -1; |
|
|
1005 | fd_intern (evfd); |
|
|
1006 | ev_io_set (&pipeev, evfd, EV_READ); |
|
|
1007 | } |
|
|
1008 | else |
|
|
1009 | #endif |
|
|
1010 | { |
|
|
1011 | while (pipe (evpipe)) |
|
|
1012 | syserr ("(libev) error creating signal/async pipe"); |
|
|
1013 | |
767 | fd_intern (sigpipe [0]); |
1014 | fd_intern (evpipe [0]); |
768 | fd_intern (sigpipe [1]); |
1015 | fd_intern (evpipe [1]); |
|
|
1016 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
|
|
1017 | } |
769 | |
1018 | |
770 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
|
|
771 | ev_io_start (EV_A_ &sigev); |
1019 | ev_io_start (EV_A_ &pipeev); |
772 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1020 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
1021 | } |
|
|
1022 | } |
|
|
1023 | |
|
|
1024 | void inline_size |
|
|
1025 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1026 | { |
|
|
1027 | if (!*flag) |
|
|
1028 | { |
|
|
1029 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1030 | |
|
|
1031 | *flag = 1; |
|
|
1032 | |
|
|
1033 | #if EV_USE_EVENTFD |
|
|
1034 | if (evfd >= 0) |
|
|
1035 | { |
|
|
1036 | uint64_t counter = 1; |
|
|
1037 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
1038 | } |
|
|
1039 | else |
|
|
1040 | #endif |
|
|
1041 | write (evpipe [1], &old_errno, 1); |
|
|
1042 | |
|
|
1043 | errno = old_errno; |
|
|
1044 | } |
|
|
1045 | } |
|
|
1046 | |
|
|
1047 | static void |
|
|
1048 | pipecb (EV_P_ ev_io *iow, int revents) |
|
|
1049 | { |
|
|
1050 | #if EV_USE_EVENTFD |
|
|
1051 | if (evfd >= 0) |
|
|
1052 | { |
|
|
1053 | uint64_t counter; |
|
|
1054 | read (evfd, &counter, sizeof (uint64_t)); |
|
|
1055 | } |
|
|
1056 | else |
|
|
1057 | #endif |
|
|
1058 | { |
|
|
1059 | char dummy; |
|
|
1060 | read (evpipe [0], &dummy, 1); |
|
|
1061 | } |
|
|
1062 | |
|
|
1063 | if (gotsig && ev_is_default_loop (EV_A)) |
|
|
1064 | { |
|
|
1065 | int signum; |
|
|
1066 | gotsig = 0; |
|
|
1067 | |
|
|
1068 | for (signum = signalmax; signum--; ) |
|
|
1069 | if (signals [signum].gotsig) |
|
|
1070 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
1071 | } |
|
|
1072 | |
|
|
1073 | #if EV_ASYNC_ENABLE |
|
|
1074 | if (gotasync) |
|
|
1075 | { |
|
|
1076 | int i; |
|
|
1077 | gotasync = 0; |
|
|
1078 | |
|
|
1079 | for (i = asynccnt; i--; ) |
|
|
1080 | if (asyncs [i]->sent) |
|
|
1081 | { |
|
|
1082 | asyncs [i]->sent = 0; |
|
|
1083 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
|
|
1084 | } |
|
|
1085 | } |
|
|
1086 | #endif |
773 | } |
1087 | } |
774 | |
1088 | |
775 | /*****************************************************************************/ |
1089 | /*****************************************************************************/ |
776 | |
1090 | |
|
|
1091 | static void |
|
|
1092 | ev_sighandler (int signum) |
|
|
1093 | { |
|
|
1094 | #if EV_MULTIPLICITY |
|
|
1095 | struct ev_loop *loop = &default_loop_struct; |
|
|
1096 | #endif |
|
|
1097 | |
|
|
1098 | #if _WIN32 |
|
|
1099 | signal (signum, ev_sighandler); |
|
|
1100 | #endif |
|
|
1101 | |
|
|
1102 | signals [signum - 1].gotsig = 1; |
|
|
1103 | evpipe_write (EV_A_ &gotsig); |
|
|
1104 | } |
|
|
1105 | |
|
|
1106 | void noinline |
|
|
1107 | ev_feed_signal_event (EV_P_ int signum) |
|
|
1108 | { |
|
|
1109 | WL w; |
|
|
1110 | |
|
|
1111 | #if EV_MULTIPLICITY |
|
|
1112 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1113 | #endif |
|
|
1114 | |
|
|
1115 | --signum; |
|
|
1116 | |
|
|
1117 | if (signum < 0 || signum >= signalmax) |
|
|
1118 | return; |
|
|
1119 | |
|
|
1120 | signals [signum].gotsig = 0; |
|
|
1121 | |
|
|
1122 | for (w = signals [signum].head; w; w = w->next) |
|
|
1123 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
1124 | } |
|
|
1125 | |
|
|
1126 | /*****************************************************************************/ |
|
|
1127 | |
777 | static ev_child *childs [EV_PID_HASHSIZE]; |
1128 | static WL childs [EV_PID_HASHSIZE]; |
778 | |
1129 | |
779 | #ifndef _WIN32 |
1130 | #ifndef _WIN32 |
780 | |
1131 | |
781 | static ev_signal childev; |
1132 | static ev_signal childev; |
782 | |
1133 | |
|
|
1134 | #ifndef WIFCONTINUED |
|
|
1135 | # define WIFCONTINUED(status) 0 |
|
|
1136 | #endif |
|
|
1137 | |
783 | void inline_speed |
1138 | void inline_speed |
784 | child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) |
1139 | child_reap (EV_P_ int chain, int pid, int status) |
785 | { |
1140 | { |
786 | ev_child *w; |
1141 | ev_child *w; |
|
|
1142 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
787 | |
1143 | |
788 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1144 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1145 | { |
789 | if (w->pid == pid || !w->pid) |
1146 | if ((w->pid == pid || !w->pid) |
|
|
1147 | && (!traced || (w->flags & 1))) |
790 | { |
1148 | { |
791 | ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */ |
1149 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
792 | w->rpid = pid; |
1150 | w->rpid = pid; |
793 | w->rstatus = status; |
1151 | w->rstatus = status; |
794 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
1152 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
795 | } |
1153 | } |
|
|
1154 | } |
796 | } |
1155 | } |
797 | |
1156 | |
798 | #ifndef WCONTINUED |
1157 | #ifndef WCONTINUED |
799 | # define WCONTINUED 0 |
1158 | # define WCONTINUED 0 |
800 | #endif |
1159 | #endif |
… | |
… | |
809 | if (!WCONTINUED |
1168 | if (!WCONTINUED |
810 | || errno != EINVAL |
1169 | || errno != EINVAL |
811 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
1170 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
812 | return; |
1171 | return; |
813 | |
1172 | |
814 | /* make sure we are called again until all childs have been reaped */ |
1173 | /* make sure we are called again until all children have been reaped */ |
815 | /* we need to do it this way so that the callback gets called before we continue */ |
1174 | /* we need to do it this way so that the callback gets called before we continue */ |
816 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1175 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
817 | |
1176 | |
818 | child_reap (EV_A_ sw, pid, pid, status); |
1177 | child_reap (EV_A_ pid, pid, status); |
819 | if (EV_PID_HASHSIZE > 1) |
1178 | if (EV_PID_HASHSIZE > 1) |
820 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1179 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
821 | } |
1180 | } |
822 | |
1181 | |
823 | #endif |
1182 | #endif |
824 | |
1183 | |
825 | /*****************************************************************************/ |
1184 | /*****************************************************************************/ |
… | |
… | |
897 | } |
1256 | } |
898 | |
1257 | |
899 | unsigned int |
1258 | unsigned int |
900 | ev_embeddable_backends (void) |
1259 | ev_embeddable_backends (void) |
901 | { |
1260 | { |
902 | return EVBACKEND_EPOLL |
1261 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
903 | | EVBACKEND_KQUEUE |
1262 | |
904 | | EVBACKEND_PORT; |
1263 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
|
|
1264 | /* please fix it and tell me how to detect the fix */ |
|
|
1265 | flags &= ~EVBACKEND_EPOLL; |
|
|
1266 | |
|
|
1267 | return flags; |
905 | } |
1268 | } |
906 | |
1269 | |
907 | unsigned int |
1270 | unsigned int |
908 | ev_backend (EV_P) |
1271 | ev_backend (EV_P) |
909 | { |
1272 | { |
… | |
… | |
912 | |
1275 | |
913 | unsigned int |
1276 | unsigned int |
914 | ev_loop_count (EV_P) |
1277 | ev_loop_count (EV_P) |
915 | { |
1278 | { |
916 | return loop_count; |
1279 | return loop_count; |
|
|
1280 | } |
|
|
1281 | |
|
|
1282 | void |
|
|
1283 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1284 | { |
|
|
1285 | io_blocktime = interval; |
|
|
1286 | } |
|
|
1287 | |
|
|
1288 | void |
|
|
1289 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1290 | { |
|
|
1291 | timeout_blocktime = interval; |
917 | } |
1292 | } |
918 | |
1293 | |
919 | static void noinline |
1294 | static void noinline |
920 | loop_init (EV_P_ unsigned int flags) |
1295 | loop_init (EV_P_ unsigned int flags) |
921 | { |
1296 | { |
… | |
… | |
927 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1302 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
928 | have_monotonic = 1; |
1303 | have_monotonic = 1; |
929 | } |
1304 | } |
930 | #endif |
1305 | #endif |
931 | |
1306 | |
932 | ev_rt_now = ev_time (); |
1307 | ev_rt_now = ev_time (); |
933 | mn_now = get_clock (); |
1308 | mn_now = get_clock (); |
934 | now_floor = mn_now; |
1309 | now_floor = mn_now; |
935 | rtmn_diff = ev_rt_now - mn_now; |
1310 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1311 | |
|
|
1312 | io_blocktime = 0.; |
|
|
1313 | timeout_blocktime = 0.; |
|
|
1314 | backend = 0; |
|
|
1315 | backend_fd = -1; |
|
|
1316 | gotasync = 0; |
|
|
1317 | #if EV_USE_INOTIFY |
|
|
1318 | fs_fd = -2; |
|
|
1319 | #endif |
936 | |
1320 | |
937 | /* pid check not overridable via env */ |
1321 | /* pid check not overridable via env */ |
938 | #ifndef _WIN32 |
1322 | #ifndef _WIN32 |
939 | if (flags & EVFLAG_FORKCHECK) |
1323 | if (flags & EVFLAG_FORKCHECK) |
940 | curpid = getpid (); |
1324 | curpid = getpid (); |
… | |
… | |
943 | if (!(flags & EVFLAG_NOENV) |
1327 | if (!(flags & EVFLAG_NOENV) |
944 | && !enable_secure () |
1328 | && !enable_secure () |
945 | && getenv ("LIBEV_FLAGS")) |
1329 | && getenv ("LIBEV_FLAGS")) |
946 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1330 | flags = atoi (getenv ("LIBEV_FLAGS")); |
947 | |
1331 | |
948 | if (!(flags & 0x0000ffffUL)) |
1332 | if (!(flags & 0x0000ffffU)) |
949 | flags |= ev_recommended_backends (); |
1333 | flags |= ev_recommended_backends (); |
950 | |
|
|
951 | backend = 0; |
|
|
952 | backend_fd = -1; |
|
|
953 | #if EV_USE_INOTIFY |
|
|
954 | fs_fd = -2; |
|
|
955 | #endif |
|
|
956 | |
1334 | |
957 | #if EV_USE_PORT |
1335 | #if EV_USE_PORT |
958 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1336 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
959 | #endif |
1337 | #endif |
960 | #if EV_USE_KQUEUE |
1338 | #if EV_USE_KQUEUE |
… | |
… | |
968 | #endif |
1346 | #endif |
969 | #if EV_USE_SELECT |
1347 | #if EV_USE_SELECT |
970 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1348 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
971 | #endif |
1349 | #endif |
972 | |
1350 | |
973 | ev_init (&sigev, sigcb); |
1351 | ev_init (&pipeev, pipecb); |
974 | ev_set_priority (&sigev, EV_MAXPRI); |
1352 | ev_set_priority (&pipeev, EV_MAXPRI); |
975 | } |
1353 | } |
976 | } |
1354 | } |
977 | |
1355 | |
978 | static void noinline |
1356 | static void noinline |
979 | loop_destroy (EV_P) |
1357 | loop_destroy (EV_P) |
980 | { |
1358 | { |
981 | int i; |
1359 | int i; |
|
|
1360 | |
|
|
1361 | if (ev_is_active (&pipeev)) |
|
|
1362 | { |
|
|
1363 | ev_ref (EV_A); /* signal watcher */ |
|
|
1364 | ev_io_stop (EV_A_ &pipeev); |
|
|
1365 | |
|
|
1366 | #if EV_USE_EVENTFD |
|
|
1367 | if (evfd >= 0) |
|
|
1368 | close (evfd); |
|
|
1369 | #endif |
|
|
1370 | |
|
|
1371 | if (evpipe [0] >= 0) |
|
|
1372 | { |
|
|
1373 | close (evpipe [0]); |
|
|
1374 | close (evpipe [1]); |
|
|
1375 | } |
|
|
1376 | } |
982 | |
1377 | |
983 | #if EV_USE_INOTIFY |
1378 | #if EV_USE_INOTIFY |
984 | if (fs_fd >= 0) |
1379 | if (fs_fd >= 0) |
985 | close (fs_fd); |
1380 | close (fs_fd); |
986 | #endif |
1381 | #endif |
… | |
… | |
1009 | array_free (pending, [i]); |
1404 | array_free (pending, [i]); |
1010 | #if EV_IDLE_ENABLE |
1405 | #if EV_IDLE_ENABLE |
1011 | array_free (idle, [i]); |
1406 | array_free (idle, [i]); |
1012 | #endif |
1407 | #endif |
1013 | } |
1408 | } |
|
|
1409 | |
|
|
1410 | ev_free (anfds); anfdmax = 0; |
1014 | |
1411 | |
1015 | /* have to use the microsoft-never-gets-it-right macro */ |
1412 | /* have to use the microsoft-never-gets-it-right macro */ |
1016 | array_free (fdchange, EMPTY); |
1413 | array_free (fdchange, EMPTY); |
1017 | array_free (timer, EMPTY); |
1414 | array_free (timer, EMPTY); |
1018 | #if EV_PERIODIC_ENABLE |
1415 | #if EV_PERIODIC_ENABLE |
1019 | array_free (periodic, EMPTY); |
1416 | array_free (periodic, EMPTY); |
1020 | #endif |
1417 | #endif |
|
|
1418 | #if EV_FORK_ENABLE |
|
|
1419 | array_free (fork, EMPTY); |
|
|
1420 | #endif |
1021 | array_free (prepare, EMPTY); |
1421 | array_free (prepare, EMPTY); |
1022 | array_free (check, EMPTY); |
1422 | array_free (check, EMPTY); |
|
|
1423 | #if EV_ASYNC_ENABLE |
|
|
1424 | array_free (async, EMPTY); |
|
|
1425 | #endif |
1023 | |
1426 | |
1024 | backend = 0; |
1427 | backend = 0; |
1025 | } |
1428 | } |
1026 | |
1429 | |
|
|
1430 | #if EV_USE_INOTIFY |
1027 | void inline_size infy_fork (EV_P); |
1431 | void inline_size infy_fork (EV_P); |
|
|
1432 | #endif |
1028 | |
1433 | |
1029 | void inline_size |
1434 | void inline_size |
1030 | loop_fork (EV_P) |
1435 | loop_fork (EV_P) |
1031 | { |
1436 | { |
1032 | #if EV_USE_PORT |
1437 | #if EV_USE_PORT |
… | |
… | |
1040 | #endif |
1445 | #endif |
1041 | #if EV_USE_INOTIFY |
1446 | #if EV_USE_INOTIFY |
1042 | infy_fork (EV_A); |
1447 | infy_fork (EV_A); |
1043 | #endif |
1448 | #endif |
1044 | |
1449 | |
1045 | if (ev_is_active (&sigev)) |
1450 | if (ev_is_active (&pipeev)) |
1046 | { |
1451 | { |
1047 | /* default loop */ |
1452 | /* this "locks" the handlers against writing to the pipe */ |
|
|
1453 | /* while we modify the fd vars */ |
|
|
1454 | gotsig = 1; |
|
|
1455 | #if EV_ASYNC_ENABLE |
|
|
1456 | gotasync = 1; |
|
|
1457 | #endif |
1048 | |
1458 | |
1049 | ev_ref (EV_A); |
1459 | ev_ref (EV_A); |
1050 | ev_io_stop (EV_A_ &sigev); |
1460 | ev_io_stop (EV_A_ &pipeev); |
|
|
1461 | |
|
|
1462 | #if EV_USE_EVENTFD |
|
|
1463 | if (evfd >= 0) |
|
|
1464 | close (evfd); |
|
|
1465 | #endif |
|
|
1466 | |
|
|
1467 | if (evpipe [0] >= 0) |
|
|
1468 | { |
1051 | close (sigpipe [0]); |
1469 | close (evpipe [0]); |
1052 | close (sigpipe [1]); |
1470 | close (evpipe [1]); |
|
|
1471 | } |
1053 | |
1472 | |
1054 | while (pipe (sigpipe)) |
|
|
1055 | syserr ("(libev) error creating pipe"); |
|
|
1056 | |
|
|
1057 | siginit (EV_A); |
1473 | evpipe_init (EV_A); |
|
|
1474 | /* now iterate over everything, in case we missed something */ |
|
|
1475 | pipecb (EV_A_ &pipeev, EV_READ); |
1058 | } |
1476 | } |
1059 | |
1477 | |
1060 | postfork = 0; |
1478 | postfork = 0; |
1061 | } |
1479 | } |
1062 | |
1480 | |
1063 | #if EV_MULTIPLICITY |
1481 | #if EV_MULTIPLICITY |
|
|
1482 | |
1064 | struct ev_loop * |
1483 | struct ev_loop * |
1065 | ev_loop_new (unsigned int flags) |
1484 | ev_loop_new (unsigned int flags) |
1066 | { |
1485 | { |
1067 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1486 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1068 | |
1487 | |
… | |
… | |
1084 | } |
1503 | } |
1085 | |
1504 | |
1086 | void |
1505 | void |
1087 | ev_loop_fork (EV_P) |
1506 | ev_loop_fork (EV_P) |
1088 | { |
1507 | { |
1089 | postfork = 1; |
1508 | postfork = 1; /* must be in line with ev_default_fork */ |
1090 | } |
1509 | } |
1091 | |
1510 | |
|
|
1511 | #if EV_VERIFY |
|
|
1512 | void noinline |
|
|
1513 | verify_watcher (EV_P_ W w) |
|
|
1514 | { |
|
|
1515 | assert (("watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
|
|
1516 | |
|
|
1517 | if (w->pending) |
|
|
1518 | assert (("pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
|
|
1519 | } |
|
|
1520 | |
|
|
1521 | static void noinline |
|
|
1522 | verify_heap (EV_P_ ANHE *heap, int N) |
|
|
1523 | { |
|
|
1524 | int i; |
|
|
1525 | |
|
|
1526 | for (i = HEAP0; i < N + HEAP0; ++i) |
|
|
1527 | { |
|
|
1528 | assert (("active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
|
|
1529 | assert (("heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
|
|
1530 | assert (("heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
|
|
1531 | |
|
|
1532 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
|
|
1533 | } |
|
|
1534 | } |
|
|
1535 | |
|
|
1536 | static void noinline |
|
|
1537 | array_verify (EV_P_ W *ws, int cnt) |
|
|
1538 | { |
|
|
1539 | while (cnt--) |
|
|
1540 | { |
|
|
1541 | assert (("active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
|
|
1542 | verify_watcher (EV_A_ ws [cnt]); |
|
|
1543 | } |
|
|
1544 | } |
|
|
1545 | #endif |
|
|
1546 | |
|
|
1547 | void |
|
|
1548 | ev_loop_verify (EV_P) |
|
|
1549 | { |
|
|
1550 | #if EV_VERIFY |
|
|
1551 | int i; |
|
|
1552 | WL w; |
|
|
1553 | |
|
|
1554 | assert (activecnt >= -1); |
|
|
1555 | |
|
|
1556 | assert (fdchangemax >= fdchangecnt); |
|
|
1557 | for (i = 0; i < fdchangecnt; ++i) |
|
|
1558 | assert (("negative fd in fdchanges", fdchanges [i] >= 0)); |
|
|
1559 | |
|
|
1560 | assert (anfdmax >= 0); |
|
|
1561 | for (i = 0; i < anfdmax; ++i) |
|
|
1562 | for (w = anfds [i].head; w; w = w->next) |
|
|
1563 | { |
|
|
1564 | verify_watcher (EV_A_ (W)w); |
|
|
1565 | assert (("inactive fd watcher on anfd list", ev_active (w) == 1)); |
|
|
1566 | assert (("fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
|
|
1567 | } |
|
|
1568 | |
|
|
1569 | assert (timermax >= timercnt); |
|
|
1570 | verify_heap (EV_A_ timers, timercnt); |
|
|
1571 | |
|
|
1572 | #if EV_PERIODIC_ENABLE |
|
|
1573 | assert (periodicmax >= periodiccnt); |
|
|
1574 | verify_heap (EV_A_ periodics, periodiccnt); |
|
|
1575 | #endif |
|
|
1576 | |
|
|
1577 | for (i = NUMPRI; i--; ) |
|
|
1578 | { |
|
|
1579 | assert (pendingmax [i] >= pendingcnt [i]); |
|
|
1580 | #if EV_IDLE_ENABLE |
|
|
1581 | assert (idleall >= 0); |
|
|
1582 | assert (idlemax [i] >= idlecnt [i]); |
|
|
1583 | array_verify (EV_A_ (W *)idles [i], idlecnt [i]); |
|
|
1584 | #endif |
|
|
1585 | } |
|
|
1586 | |
|
|
1587 | #if EV_FORK_ENABLE |
|
|
1588 | assert (forkmax >= forkcnt); |
|
|
1589 | array_verify (EV_A_ (W *)forks, forkcnt); |
|
|
1590 | #endif |
|
|
1591 | |
|
|
1592 | #if EV_ASYNC_ENABLE |
|
|
1593 | assert (asyncmax >= asynccnt); |
|
|
1594 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
|
|
1595 | #endif |
|
|
1596 | |
|
|
1597 | assert (preparemax >= preparecnt); |
|
|
1598 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
1599 | |
|
|
1600 | assert (checkmax >= checkcnt); |
|
|
1601 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
1602 | |
|
|
1603 | # if 0 |
|
|
1604 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1605 | for (signum = signalmax; signum--; ) if (signals [signum].gotsig) |
1092 | #endif |
1606 | # endif |
|
|
1607 | #endif |
|
|
1608 | } |
|
|
1609 | |
|
|
1610 | #endif /* multiplicity */ |
1093 | |
1611 | |
1094 | #if EV_MULTIPLICITY |
1612 | #if EV_MULTIPLICITY |
1095 | struct ev_loop * |
1613 | struct ev_loop * |
1096 | ev_default_loop_init (unsigned int flags) |
1614 | ev_default_loop_init (unsigned int flags) |
1097 | #else |
1615 | #else |
1098 | int |
1616 | int |
1099 | ev_default_loop (unsigned int flags) |
1617 | ev_default_loop (unsigned int flags) |
1100 | #endif |
1618 | #endif |
1101 | { |
1619 | { |
1102 | if (sigpipe [0] == sigpipe [1]) |
|
|
1103 | if (pipe (sigpipe)) |
|
|
1104 | return 0; |
|
|
1105 | |
|
|
1106 | if (!ev_default_loop_ptr) |
1620 | if (!ev_default_loop_ptr) |
1107 | { |
1621 | { |
1108 | #if EV_MULTIPLICITY |
1622 | #if EV_MULTIPLICITY |
1109 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1623 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1110 | #else |
1624 | #else |
… | |
… | |
1113 | |
1627 | |
1114 | loop_init (EV_A_ flags); |
1628 | loop_init (EV_A_ flags); |
1115 | |
1629 | |
1116 | if (ev_backend (EV_A)) |
1630 | if (ev_backend (EV_A)) |
1117 | { |
1631 | { |
1118 | siginit (EV_A); |
|
|
1119 | |
|
|
1120 | #ifndef _WIN32 |
1632 | #ifndef _WIN32 |
1121 | ev_signal_init (&childev, childcb, SIGCHLD); |
1633 | ev_signal_init (&childev, childcb, SIGCHLD); |
1122 | ev_set_priority (&childev, EV_MAXPRI); |
1634 | ev_set_priority (&childev, EV_MAXPRI); |
1123 | ev_signal_start (EV_A_ &childev); |
1635 | ev_signal_start (EV_A_ &childev); |
1124 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1636 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
… | |
… | |
1141 | #ifndef _WIN32 |
1653 | #ifndef _WIN32 |
1142 | ev_ref (EV_A); /* child watcher */ |
1654 | ev_ref (EV_A); /* child watcher */ |
1143 | ev_signal_stop (EV_A_ &childev); |
1655 | ev_signal_stop (EV_A_ &childev); |
1144 | #endif |
1656 | #endif |
1145 | |
1657 | |
1146 | ev_ref (EV_A); /* signal watcher */ |
|
|
1147 | ev_io_stop (EV_A_ &sigev); |
|
|
1148 | |
|
|
1149 | close (sigpipe [0]); sigpipe [0] = 0; |
|
|
1150 | close (sigpipe [1]); sigpipe [1] = 0; |
|
|
1151 | |
|
|
1152 | loop_destroy (EV_A); |
1658 | loop_destroy (EV_A); |
1153 | } |
1659 | } |
1154 | |
1660 | |
1155 | void |
1661 | void |
1156 | ev_default_fork (void) |
1662 | ev_default_fork (void) |
… | |
… | |
1158 | #if EV_MULTIPLICITY |
1664 | #if EV_MULTIPLICITY |
1159 | struct ev_loop *loop = ev_default_loop_ptr; |
1665 | struct ev_loop *loop = ev_default_loop_ptr; |
1160 | #endif |
1666 | #endif |
1161 | |
1667 | |
1162 | if (backend) |
1668 | if (backend) |
1163 | postfork = 1; |
1669 | postfork = 1; /* must be in line with ev_loop_fork */ |
1164 | } |
1670 | } |
1165 | |
1671 | |
1166 | /*****************************************************************************/ |
1672 | /*****************************************************************************/ |
|
|
1673 | |
|
|
1674 | void |
|
|
1675 | ev_invoke (EV_P_ void *w, int revents) |
|
|
1676 | { |
|
|
1677 | EV_CB_INVOKE ((W)w, revents); |
|
|
1678 | } |
1167 | |
1679 | |
1168 | void inline_speed |
1680 | void inline_speed |
1169 | call_pending (EV_P) |
1681 | call_pending (EV_P) |
1170 | { |
1682 | { |
1171 | int pri; |
1683 | int pri; |
… | |
… | |
1179 | { |
1691 | { |
1180 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
1692 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
1181 | |
1693 | |
1182 | p->w->pending = 0; |
1694 | p->w->pending = 0; |
1183 | EV_CB_INVOKE (p->w, p->events); |
1695 | EV_CB_INVOKE (p->w, p->events); |
|
|
1696 | EV_FREQUENT_CHECK; |
1184 | } |
1697 | } |
1185 | } |
1698 | } |
1186 | } |
1699 | } |
1187 | |
|
|
1188 | void inline_size |
|
|
1189 | timers_reify (EV_P) |
|
|
1190 | { |
|
|
1191 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
|
|
1192 | { |
|
|
1193 | ev_timer *w = timers [0]; |
|
|
1194 | |
|
|
1195 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1196 | |
|
|
1197 | /* first reschedule or stop timer */ |
|
|
1198 | if (w->repeat) |
|
|
1199 | { |
|
|
1200 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1201 | |
|
|
1202 | ((WT)w)->at += w->repeat; |
|
|
1203 | if (((WT)w)->at < mn_now) |
|
|
1204 | ((WT)w)->at = mn_now; |
|
|
1205 | |
|
|
1206 | downheap ((WT *)timers, timercnt, 0); |
|
|
1207 | } |
|
|
1208 | else |
|
|
1209 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1210 | |
|
|
1211 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
|
|
1212 | } |
|
|
1213 | } |
|
|
1214 | |
|
|
1215 | #if EV_PERIODIC_ENABLE |
|
|
1216 | void inline_size |
|
|
1217 | periodics_reify (EV_P) |
|
|
1218 | { |
|
|
1219 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
|
|
1220 | { |
|
|
1221 | ev_periodic *w = periodics [0]; |
|
|
1222 | |
|
|
1223 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
1224 | |
|
|
1225 | /* first reschedule or stop timer */ |
|
|
1226 | if (w->reschedule_cb) |
|
|
1227 | { |
|
|
1228 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); |
|
|
1229 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
|
|
1230 | downheap ((WT *)periodics, periodiccnt, 0); |
|
|
1231 | } |
|
|
1232 | else if (w->interval) |
|
|
1233 | { |
|
|
1234 | ((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
|
|
1235 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
|
|
1236 | downheap ((WT *)periodics, periodiccnt, 0); |
|
|
1237 | } |
|
|
1238 | else |
|
|
1239 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1240 | |
|
|
1241 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
|
|
1242 | } |
|
|
1243 | } |
|
|
1244 | |
|
|
1245 | static void noinline |
|
|
1246 | periodics_reschedule (EV_P) |
|
|
1247 | { |
|
|
1248 | int i; |
|
|
1249 | |
|
|
1250 | /* adjust periodics after time jump */ |
|
|
1251 | for (i = 0; i < periodiccnt; ++i) |
|
|
1252 | { |
|
|
1253 | ev_periodic *w = periodics [i]; |
|
|
1254 | |
|
|
1255 | if (w->reschedule_cb) |
|
|
1256 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
|
|
1257 | else if (w->interval) |
|
|
1258 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
|
|
1259 | } |
|
|
1260 | |
|
|
1261 | /* now rebuild the heap */ |
|
|
1262 | for (i = periodiccnt >> 1; i--; ) |
|
|
1263 | downheap ((WT *)periodics, periodiccnt, i); |
|
|
1264 | } |
|
|
1265 | #endif |
|
|
1266 | |
1700 | |
1267 | #if EV_IDLE_ENABLE |
1701 | #if EV_IDLE_ENABLE |
1268 | void inline_size |
1702 | void inline_size |
1269 | idle_reify (EV_P) |
1703 | idle_reify (EV_P) |
1270 | { |
1704 | { |
1271 | if (expect_false (!idleall)) |
1705 | if (expect_false (idleall)) |
1272 | { |
1706 | { |
1273 | int pri; |
1707 | int pri; |
1274 | |
1708 | |
1275 | for (pri = NUMPRI; pri--; ) |
1709 | for (pri = NUMPRI; pri--; ) |
1276 | { |
1710 | { |
… | |
… | |
1285 | } |
1719 | } |
1286 | } |
1720 | } |
1287 | } |
1721 | } |
1288 | #endif |
1722 | #endif |
1289 | |
1723 | |
1290 | int inline_size |
1724 | void inline_size |
1291 | time_update_monotonic (EV_P) |
1725 | timers_reify (EV_P) |
1292 | { |
1726 | { |
|
|
1727 | EV_FREQUENT_CHECK; |
|
|
1728 | |
|
|
1729 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
|
|
1730 | { |
|
|
1731 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
|
|
1732 | |
|
|
1733 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1734 | |
|
|
1735 | /* first reschedule or stop timer */ |
|
|
1736 | if (w->repeat) |
|
|
1737 | { |
|
|
1738 | ev_at (w) += w->repeat; |
|
|
1739 | if (ev_at (w) < mn_now) |
|
|
1740 | ev_at (w) = mn_now; |
|
|
1741 | |
|
|
1742 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1743 | |
|
|
1744 | ANHE_at_cache (timers [HEAP0]); |
|
|
1745 | downheap (timers, timercnt, HEAP0); |
|
|
1746 | } |
|
|
1747 | else |
|
|
1748 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1749 | |
|
|
1750 | EV_FREQUENT_CHECK; |
|
|
1751 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
|
|
1752 | } |
|
|
1753 | } |
|
|
1754 | |
|
|
1755 | #if EV_PERIODIC_ENABLE |
|
|
1756 | void inline_size |
|
|
1757 | periodics_reify (EV_P) |
|
|
1758 | { |
|
|
1759 | EV_FREQUENT_CHECK; |
|
|
1760 | |
|
|
1761 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
|
|
1762 | { |
|
|
1763 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
|
|
1764 | |
|
|
1765 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
1766 | |
|
|
1767 | /* first reschedule or stop timer */ |
|
|
1768 | if (w->reschedule_cb) |
|
|
1769 | { |
|
|
1770 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
1771 | |
|
|
1772 | assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
|
|
1773 | |
|
|
1774 | ANHE_at_cache (periodics [HEAP0]); |
|
|
1775 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1776 | } |
|
|
1777 | else if (w->interval) |
|
|
1778 | { |
|
|
1779 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1780 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
1781 | /* this might happen because of floating point inexactness */ |
|
|
1782 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
1783 | { |
|
|
1784 | ev_at (w) += w->interval; |
|
|
1785 | |
|
|
1786 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
1787 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
1788 | /* has effectively asked to get triggered more often than possible */ |
|
|
1789 | if (ev_at (w) < ev_rt_now) |
|
|
1790 | ev_at (w) = ev_rt_now; |
|
|
1791 | } |
|
|
1792 | |
|
|
1793 | ANHE_at_cache (periodics [HEAP0]); |
|
|
1794 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1795 | } |
|
|
1796 | else |
|
|
1797 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1798 | |
|
|
1799 | EV_FREQUENT_CHECK; |
|
|
1800 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
|
|
1801 | } |
|
|
1802 | } |
|
|
1803 | |
|
|
1804 | static void noinline |
|
|
1805 | periodics_reschedule (EV_P) |
|
|
1806 | { |
|
|
1807 | int i; |
|
|
1808 | |
|
|
1809 | /* adjust periodics after time jump */ |
|
|
1810 | for (i = HEAP0; i < periodiccnt + HEAP0; ++i) |
|
|
1811 | { |
|
|
1812 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
|
|
1813 | |
|
|
1814 | if (w->reschedule_cb) |
|
|
1815 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
1816 | else if (w->interval) |
|
|
1817 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1818 | |
|
|
1819 | ANHE_at_cache (periodics [i]); |
|
|
1820 | } |
|
|
1821 | |
|
|
1822 | reheap (periodics, periodiccnt); |
|
|
1823 | } |
|
|
1824 | #endif |
|
|
1825 | |
|
|
1826 | void inline_speed |
|
|
1827 | time_update (EV_P_ ev_tstamp max_block) |
|
|
1828 | { |
|
|
1829 | int i; |
|
|
1830 | |
|
|
1831 | #if EV_USE_MONOTONIC |
|
|
1832 | if (expect_true (have_monotonic)) |
|
|
1833 | { |
|
|
1834 | ev_tstamp odiff = rtmn_diff; |
|
|
1835 | |
1293 | mn_now = get_clock (); |
1836 | mn_now = get_clock (); |
1294 | |
1837 | |
|
|
1838 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
|
|
1839 | /* interpolate in the meantime */ |
1295 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1840 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1296 | { |
1841 | { |
1297 | ev_rt_now = rtmn_diff + mn_now; |
1842 | ev_rt_now = rtmn_diff + mn_now; |
1298 | return 0; |
1843 | return; |
1299 | } |
1844 | } |
1300 | else |
1845 | |
1301 | { |
|
|
1302 | now_floor = mn_now; |
1846 | now_floor = mn_now; |
1303 | ev_rt_now = ev_time (); |
1847 | ev_rt_now = ev_time (); |
1304 | return 1; |
|
|
1305 | } |
|
|
1306 | } |
|
|
1307 | |
1848 | |
1308 | void inline_size |
1849 | /* loop a few times, before making important decisions. |
1309 | time_update (EV_P) |
1850 | * on the choice of "4": one iteration isn't enough, |
1310 | { |
1851 | * in case we get preempted during the calls to |
1311 | int i; |
1852 | * ev_time and get_clock. a second call is almost guaranteed |
1312 | |
1853 | * to succeed in that case, though. and looping a few more times |
1313 | #if EV_USE_MONOTONIC |
1854 | * doesn't hurt either as we only do this on time-jumps or |
1314 | if (expect_true (have_monotonic)) |
1855 | * in the unlikely event of having been preempted here. |
1315 | { |
1856 | */ |
1316 | if (time_update_monotonic (EV_A)) |
1857 | for (i = 4; --i; ) |
1317 | { |
1858 | { |
1318 | ev_tstamp odiff = rtmn_diff; |
|
|
1319 | |
|
|
1320 | /* loop a few times, before making important decisions. |
|
|
1321 | * on the choice of "4": one iteration isn't enough, |
|
|
1322 | * in case we get preempted during the calls to |
|
|
1323 | * ev_time and get_clock. a second call is almost guaranteed |
|
|
1324 | * to succeed in that case, though. and looping a few more times |
|
|
1325 | * doesn't hurt either as we only do this on time-jumps or |
|
|
1326 | * in the unlikely event of having been preempted here. |
|
|
1327 | */ |
|
|
1328 | for (i = 4; --i; ) |
|
|
1329 | { |
|
|
1330 | rtmn_diff = ev_rt_now - mn_now; |
1859 | rtmn_diff = ev_rt_now - mn_now; |
1331 | |
1860 | |
1332 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1861 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
1333 | return; /* all is well */ |
1862 | return; /* all is well */ |
1334 | |
1863 | |
1335 | ev_rt_now = ev_time (); |
1864 | ev_rt_now = ev_time (); |
1336 | mn_now = get_clock (); |
1865 | mn_now = get_clock (); |
1337 | now_floor = mn_now; |
1866 | now_floor = mn_now; |
1338 | } |
1867 | } |
1339 | |
1868 | |
1340 | # if EV_PERIODIC_ENABLE |
1869 | # if EV_PERIODIC_ENABLE |
1341 | periodics_reschedule (EV_A); |
1870 | periodics_reschedule (EV_A); |
1342 | # endif |
1871 | # endif |
1343 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
1872 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
1344 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1873 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1345 | } |
|
|
1346 | } |
1874 | } |
1347 | else |
1875 | else |
1348 | #endif |
1876 | #endif |
1349 | { |
1877 | { |
1350 | ev_rt_now = ev_time (); |
1878 | ev_rt_now = ev_time (); |
1351 | |
1879 | |
1352 | if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
1880 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
1353 | { |
1881 | { |
1354 | #if EV_PERIODIC_ENABLE |
1882 | #if EV_PERIODIC_ENABLE |
1355 | periodics_reschedule (EV_A); |
1883 | periodics_reschedule (EV_A); |
1356 | #endif |
1884 | #endif |
1357 | |
|
|
1358 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
1885 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
1359 | for (i = 0; i < timercnt; ++i) |
1886 | for (i = 0; i < timercnt; ++i) |
|
|
1887 | { |
|
|
1888 | ANHE *he = timers + i + HEAP0; |
1360 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
1889 | ANHE_w (*he)->at += ev_rt_now - mn_now; |
|
|
1890 | ANHE_at_cache (*he); |
|
|
1891 | } |
1361 | } |
1892 | } |
1362 | |
1893 | |
1363 | mn_now = ev_rt_now; |
1894 | mn_now = ev_rt_now; |
1364 | } |
1895 | } |
1365 | } |
1896 | } |
… | |
… | |
1379 | static int loop_done; |
1910 | static int loop_done; |
1380 | |
1911 | |
1381 | void |
1912 | void |
1382 | ev_loop (EV_P_ int flags) |
1913 | ev_loop (EV_P_ int flags) |
1383 | { |
1914 | { |
1384 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) |
1915 | loop_done = EVUNLOOP_CANCEL; |
1385 | ? EVUNLOOP_ONE |
|
|
1386 | : EVUNLOOP_CANCEL; |
|
|
1387 | |
1916 | |
1388 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
1917 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
1389 | |
1918 | |
1390 | do |
1919 | do |
1391 | { |
1920 | { |
|
|
1921 | #if EV_VERIFY >= 2 |
|
|
1922 | ev_loop_verify (EV_A); |
|
|
1923 | #endif |
|
|
1924 | |
1392 | #ifndef _WIN32 |
1925 | #ifndef _WIN32 |
1393 | if (expect_false (curpid)) /* penalise the forking check even more */ |
1926 | if (expect_false (curpid)) /* penalise the forking check even more */ |
1394 | if (expect_false (getpid () != curpid)) |
1927 | if (expect_false (getpid () != curpid)) |
1395 | { |
1928 | { |
1396 | curpid = getpid (); |
1929 | curpid = getpid (); |
… | |
… | |
1406 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
1939 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
1407 | call_pending (EV_A); |
1940 | call_pending (EV_A); |
1408 | } |
1941 | } |
1409 | #endif |
1942 | #endif |
1410 | |
1943 | |
1411 | /* queue check watchers (and execute them) */ |
1944 | /* queue prepare watchers (and execute them) */ |
1412 | if (expect_false (preparecnt)) |
1945 | if (expect_false (preparecnt)) |
1413 | { |
1946 | { |
1414 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1947 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1415 | call_pending (EV_A); |
1948 | call_pending (EV_A); |
1416 | } |
1949 | } |
… | |
… | |
1425 | /* update fd-related kernel structures */ |
1958 | /* update fd-related kernel structures */ |
1426 | fd_reify (EV_A); |
1959 | fd_reify (EV_A); |
1427 | |
1960 | |
1428 | /* calculate blocking time */ |
1961 | /* calculate blocking time */ |
1429 | { |
1962 | { |
1430 | ev_tstamp block; |
1963 | ev_tstamp waittime = 0.; |
|
|
1964 | ev_tstamp sleeptime = 0.; |
1431 | |
1965 | |
1432 | if (expect_false (flags & EVLOOP_NONBLOCK || idleall || !activecnt)) |
1966 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
1433 | block = 0.; /* do not block at all */ |
|
|
1434 | else |
|
|
1435 | { |
1967 | { |
1436 | /* update time to cancel out callback processing overhead */ |
1968 | /* update time to cancel out callback processing overhead */ |
1437 | #if EV_USE_MONOTONIC |
|
|
1438 | if (expect_true (have_monotonic)) |
|
|
1439 | time_update_monotonic (EV_A); |
1969 | time_update (EV_A_ 1e100); |
1440 | else |
|
|
1441 | #endif |
|
|
1442 | { |
|
|
1443 | ev_rt_now = ev_time (); |
|
|
1444 | mn_now = ev_rt_now; |
|
|
1445 | } |
|
|
1446 | |
1970 | |
1447 | block = MAX_BLOCKTIME; |
1971 | waittime = MAX_BLOCKTIME; |
1448 | |
1972 | |
1449 | if (timercnt) |
1973 | if (timercnt) |
1450 | { |
1974 | { |
1451 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
1975 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
1452 | if (block > to) block = to; |
1976 | if (waittime > to) waittime = to; |
1453 | } |
1977 | } |
1454 | |
1978 | |
1455 | #if EV_PERIODIC_ENABLE |
1979 | #if EV_PERIODIC_ENABLE |
1456 | if (periodiccnt) |
1980 | if (periodiccnt) |
1457 | { |
1981 | { |
1458 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
1982 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
1459 | if (block > to) block = to; |
1983 | if (waittime > to) waittime = to; |
1460 | } |
1984 | } |
1461 | #endif |
1985 | #endif |
1462 | |
1986 | |
1463 | if (expect_false (block < 0.)) block = 0.; |
1987 | if (expect_false (waittime < timeout_blocktime)) |
|
|
1988 | waittime = timeout_blocktime; |
|
|
1989 | |
|
|
1990 | sleeptime = waittime - backend_fudge; |
|
|
1991 | |
|
|
1992 | if (expect_true (sleeptime > io_blocktime)) |
|
|
1993 | sleeptime = io_blocktime; |
|
|
1994 | |
|
|
1995 | if (sleeptime) |
|
|
1996 | { |
|
|
1997 | ev_sleep (sleeptime); |
|
|
1998 | waittime -= sleeptime; |
|
|
1999 | } |
1464 | } |
2000 | } |
1465 | |
2001 | |
1466 | ++loop_count; |
2002 | ++loop_count; |
1467 | backend_poll (EV_A_ block); |
2003 | backend_poll (EV_A_ waittime); |
|
|
2004 | |
|
|
2005 | /* update ev_rt_now, do magic */ |
|
|
2006 | time_update (EV_A_ waittime + sleeptime); |
1468 | } |
2007 | } |
1469 | |
|
|
1470 | /* update ev_rt_now, do magic */ |
|
|
1471 | time_update (EV_A); |
|
|
1472 | |
2008 | |
1473 | /* queue pending timers and reschedule them */ |
2009 | /* queue pending timers and reschedule them */ |
1474 | timers_reify (EV_A); /* relative timers called last */ |
2010 | timers_reify (EV_A); /* relative timers called last */ |
1475 | #if EV_PERIODIC_ENABLE |
2011 | #if EV_PERIODIC_ENABLE |
1476 | periodics_reify (EV_A); /* absolute timers called first */ |
2012 | periodics_reify (EV_A); /* absolute timers called first */ |
… | |
… | |
1484 | /* queue check watchers, to be executed first */ |
2020 | /* queue check watchers, to be executed first */ |
1485 | if (expect_false (checkcnt)) |
2021 | if (expect_false (checkcnt)) |
1486 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2022 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1487 | |
2023 | |
1488 | call_pending (EV_A); |
2024 | call_pending (EV_A); |
1489 | |
|
|
1490 | } |
2025 | } |
1491 | while (expect_true (activecnt && !loop_done)); |
2026 | while (expect_true ( |
|
|
2027 | activecnt |
|
|
2028 | && !loop_done |
|
|
2029 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
|
|
2030 | )); |
1492 | |
2031 | |
1493 | if (loop_done == EVUNLOOP_ONE) |
2032 | if (loop_done == EVUNLOOP_ONE) |
1494 | loop_done = EVUNLOOP_CANCEL; |
2033 | loop_done = EVUNLOOP_CANCEL; |
1495 | } |
2034 | } |
1496 | |
2035 | |
… | |
… | |
1523 | head = &(*head)->next; |
2062 | head = &(*head)->next; |
1524 | } |
2063 | } |
1525 | } |
2064 | } |
1526 | |
2065 | |
1527 | void inline_speed |
2066 | void inline_speed |
1528 | ev_clear_pending (EV_P_ W w) |
2067 | clear_pending (EV_P_ W w) |
1529 | { |
2068 | { |
1530 | if (w->pending) |
2069 | if (w->pending) |
1531 | { |
2070 | { |
1532 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
2071 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1533 | w->pending = 0; |
2072 | w->pending = 0; |
1534 | } |
2073 | } |
|
|
2074 | } |
|
|
2075 | |
|
|
2076 | int |
|
|
2077 | ev_clear_pending (EV_P_ void *w) |
|
|
2078 | { |
|
|
2079 | W w_ = (W)w; |
|
|
2080 | int pending = w_->pending; |
|
|
2081 | |
|
|
2082 | if (expect_true (pending)) |
|
|
2083 | { |
|
|
2084 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
2085 | w_->pending = 0; |
|
|
2086 | p->w = 0; |
|
|
2087 | return p->events; |
|
|
2088 | } |
|
|
2089 | else |
|
|
2090 | return 0; |
1535 | } |
2091 | } |
1536 | |
2092 | |
1537 | void inline_size |
2093 | void inline_size |
1538 | pri_adjust (EV_P_ W w) |
2094 | pri_adjust (EV_P_ W w) |
1539 | { |
2095 | { |
… | |
… | |
1558 | w->active = 0; |
2114 | w->active = 0; |
1559 | } |
2115 | } |
1560 | |
2116 | |
1561 | /*****************************************************************************/ |
2117 | /*****************************************************************************/ |
1562 | |
2118 | |
1563 | void |
2119 | void noinline |
1564 | ev_io_start (EV_P_ ev_io *w) |
2120 | ev_io_start (EV_P_ ev_io *w) |
1565 | { |
2121 | { |
1566 | int fd = w->fd; |
2122 | int fd = w->fd; |
1567 | |
2123 | |
1568 | if (expect_false (ev_is_active (w))) |
2124 | if (expect_false (ev_is_active (w))) |
1569 | return; |
2125 | return; |
1570 | |
2126 | |
1571 | assert (("ev_io_start called with negative fd", fd >= 0)); |
2127 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1572 | |
2128 | |
|
|
2129 | EV_FREQUENT_CHECK; |
|
|
2130 | |
1573 | ev_start (EV_A_ (W)w, 1); |
2131 | ev_start (EV_A_ (W)w, 1); |
1574 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
2132 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
1575 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
2133 | wlist_add (&anfds[fd].head, (WL)w); |
1576 | |
2134 | |
1577 | fd_change (EV_A_ fd); |
2135 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
1578 | } |
2136 | w->events &= ~EV_IOFDSET; |
1579 | |
2137 | |
1580 | void |
2138 | EV_FREQUENT_CHECK; |
|
|
2139 | } |
|
|
2140 | |
|
|
2141 | void noinline |
1581 | ev_io_stop (EV_P_ ev_io *w) |
2142 | ev_io_stop (EV_P_ ev_io *w) |
1582 | { |
2143 | { |
1583 | ev_clear_pending (EV_A_ (W)w); |
2144 | clear_pending (EV_A_ (W)w); |
1584 | if (expect_false (!ev_is_active (w))) |
2145 | if (expect_false (!ev_is_active (w))) |
1585 | return; |
2146 | return; |
1586 | |
2147 | |
1587 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2148 | assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
1588 | |
2149 | |
|
|
2150 | EV_FREQUENT_CHECK; |
|
|
2151 | |
1589 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
2152 | wlist_del (&anfds[w->fd].head, (WL)w); |
1590 | ev_stop (EV_A_ (W)w); |
2153 | ev_stop (EV_A_ (W)w); |
1591 | |
2154 | |
1592 | fd_change (EV_A_ w->fd); |
2155 | fd_change (EV_A_ w->fd, 1); |
1593 | } |
|
|
1594 | |
2156 | |
1595 | void |
2157 | EV_FREQUENT_CHECK; |
|
|
2158 | } |
|
|
2159 | |
|
|
2160 | void noinline |
1596 | ev_timer_start (EV_P_ ev_timer *w) |
2161 | ev_timer_start (EV_P_ ev_timer *w) |
1597 | { |
2162 | { |
1598 | if (expect_false (ev_is_active (w))) |
2163 | if (expect_false (ev_is_active (w))) |
1599 | return; |
2164 | return; |
1600 | |
2165 | |
1601 | ((WT)w)->at += mn_now; |
2166 | ev_at (w) += mn_now; |
1602 | |
2167 | |
1603 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2168 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1604 | |
2169 | |
|
|
2170 | EV_FREQUENT_CHECK; |
|
|
2171 | |
|
|
2172 | ++timercnt; |
1605 | ev_start (EV_A_ (W)w, ++timercnt); |
2173 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
1606 | array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2); |
2174 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
1607 | timers [timercnt - 1] = w; |
2175 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
1608 | upheap ((WT *)timers, timercnt - 1); |
2176 | ANHE_at_cache (timers [ev_active (w)]); |
|
|
2177 | upheap (timers, ev_active (w)); |
1609 | |
2178 | |
|
|
2179 | EV_FREQUENT_CHECK; |
|
|
2180 | |
1610 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
2181 | /*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
1611 | } |
2182 | } |
1612 | |
2183 | |
1613 | void |
2184 | void noinline |
1614 | ev_timer_stop (EV_P_ ev_timer *w) |
2185 | ev_timer_stop (EV_P_ ev_timer *w) |
1615 | { |
2186 | { |
1616 | ev_clear_pending (EV_A_ (W)w); |
2187 | clear_pending (EV_A_ (W)w); |
1617 | if (expect_false (!ev_is_active (w))) |
2188 | if (expect_false (!ev_is_active (w))) |
1618 | return; |
2189 | return; |
1619 | |
2190 | |
1620 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
2191 | EV_FREQUENT_CHECK; |
1621 | |
2192 | |
1622 | { |
2193 | { |
1623 | int active = ((W)w)->active; |
2194 | int active = ev_active (w); |
1624 | |
2195 | |
|
|
2196 | assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
|
|
2197 | |
|
|
2198 | --timercnt; |
|
|
2199 | |
1625 | if (expect_true (--active < --timercnt)) |
2200 | if (expect_true (active < timercnt + HEAP0)) |
1626 | { |
2201 | { |
1627 | timers [active] = timers [timercnt]; |
2202 | timers [active] = timers [timercnt + HEAP0]; |
1628 | adjustheap ((WT *)timers, timercnt, active); |
2203 | adjustheap (timers, timercnt, active); |
1629 | } |
2204 | } |
1630 | } |
2205 | } |
1631 | |
2206 | |
1632 | ((WT)w)->at -= mn_now; |
2207 | EV_FREQUENT_CHECK; |
|
|
2208 | |
|
|
2209 | ev_at (w) -= mn_now; |
1633 | |
2210 | |
1634 | ev_stop (EV_A_ (W)w); |
2211 | ev_stop (EV_A_ (W)w); |
1635 | } |
2212 | } |
1636 | |
2213 | |
1637 | void |
2214 | void noinline |
1638 | ev_timer_again (EV_P_ ev_timer *w) |
2215 | ev_timer_again (EV_P_ ev_timer *w) |
1639 | { |
2216 | { |
|
|
2217 | EV_FREQUENT_CHECK; |
|
|
2218 | |
1640 | if (ev_is_active (w)) |
2219 | if (ev_is_active (w)) |
1641 | { |
2220 | { |
1642 | if (w->repeat) |
2221 | if (w->repeat) |
1643 | { |
2222 | { |
1644 | ((WT)w)->at = mn_now + w->repeat; |
2223 | ev_at (w) = mn_now + w->repeat; |
|
|
2224 | ANHE_at_cache (timers [ev_active (w)]); |
1645 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
2225 | adjustheap (timers, timercnt, ev_active (w)); |
1646 | } |
2226 | } |
1647 | else |
2227 | else |
1648 | ev_timer_stop (EV_A_ w); |
2228 | ev_timer_stop (EV_A_ w); |
1649 | } |
2229 | } |
1650 | else if (w->repeat) |
2230 | else if (w->repeat) |
1651 | { |
2231 | { |
1652 | w->at = w->repeat; |
2232 | ev_at (w) = w->repeat; |
1653 | ev_timer_start (EV_A_ w); |
2233 | ev_timer_start (EV_A_ w); |
1654 | } |
2234 | } |
|
|
2235 | |
|
|
2236 | EV_FREQUENT_CHECK; |
1655 | } |
2237 | } |
1656 | |
2238 | |
1657 | #if EV_PERIODIC_ENABLE |
2239 | #if EV_PERIODIC_ENABLE |
1658 | void |
2240 | void noinline |
1659 | ev_periodic_start (EV_P_ ev_periodic *w) |
2241 | ev_periodic_start (EV_P_ ev_periodic *w) |
1660 | { |
2242 | { |
1661 | if (expect_false (ev_is_active (w))) |
2243 | if (expect_false (ev_is_active (w))) |
1662 | return; |
2244 | return; |
1663 | |
2245 | |
1664 | if (w->reschedule_cb) |
2246 | if (w->reschedule_cb) |
1665 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
2247 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1666 | else if (w->interval) |
2248 | else if (w->interval) |
1667 | { |
2249 | { |
1668 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2250 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1669 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2251 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1670 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
2252 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1671 | } |
2253 | } |
|
|
2254 | else |
|
|
2255 | ev_at (w) = w->offset; |
1672 | |
2256 | |
|
|
2257 | EV_FREQUENT_CHECK; |
|
|
2258 | |
|
|
2259 | ++periodiccnt; |
1673 | ev_start (EV_A_ (W)w, ++periodiccnt); |
2260 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
1674 | array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); |
2261 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
1675 | periodics [periodiccnt - 1] = w; |
2262 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
1676 | upheap ((WT *)periodics, periodiccnt - 1); |
2263 | ANHE_at_cache (periodics [ev_active (w)]); |
|
|
2264 | upheap (periodics, ev_active (w)); |
1677 | |
2265 | |
|
|
2266 | EV_FREQUENT_CHECK; |
|
|
2267 | |
1678 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
2268 | /*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
1679 | } |
2269 | } |
1680 | |
2270 | |
1681 | void |
2271 | void noinline |
1682 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2272 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1683 | { |
2273 | { |
1684 | ev_clear_pending (EV_A_ (W)w); |
2274 | clear_pending (EV_A_ (W)w); |
1685 | if (expect_false (!ev_is_active (w))) |
2275 | if (expect_false (!ev_is_active (w))) |
1686 | return; |
2276 | return; |
1687 | |
2277 | |
1688 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
2278 | EV_FREQUENT_CHECK; |
1689 | |
2279 | |
1690 | { |
2280 | { |
1691 | int active = ((W)w)->active; |
2281 | int active = ev_active (w); |
1692 | |
2282 | |
|
|
2283 | assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
|
|
2284 | |
|
|
2285 | --periodiccnt; |
|
|
2286 | |
1693 | if (expect_true (--active < --periodiccnt)) |
2287 | if (expect_true (active < periodiccnt + HEAP0)) |
1694 | { |
2288 | { |
1695 | periodics [active] = periodics [periodiccnt]; |
2289 | periodics [active] = periodics [periodiccnt + HEAP0]; |
1696 | adjustheap ((WT *)periodics, periodiccnt, active); |
2290 | adjustheap (periodics, periodiccnt, active); |
1697 | } |
2291 | } |
1698 | } |
2292 | } |
1699 | |
2293 | |
|
|
2294 | EV_FREQUENT_CHECK; |
|
|
2295 | |
1700 | ev_stop (EV_A_ (W)w); |
2296 | ev_stop (EV_A_ (W)w); |
1701 | } |
2297 | } |
1702 | |
2298 | |
1703 | void |
2299 | void noinline |
1704 | ev_periodic_again (EV_P_ ev_periodic *w) |
2300 | ev_periodic_again (EV_P_ ev_periodic *w) |
1705 | { |
2301 | { |
1706 | /* TODO: use adjustheap and recalculation */ |
2302 | /* TODO: use adjustheap and recalculation */ |
1707 | ev_periodic_stop (EV_A_ w); |
2303 | ev_periodic_stop (EV_A_ w); |
1708 | ev_periodic_start (EV_A_ w); |
2304 | ev_periodic_start (EV_A_ w); |
… | |
… | |
1711 | |
2307 | |
1712 | #ifndef SA_RESTART |
2308 | #ifndef SA_RESTART |
1713 | # define SA_RESTART 0 |
2309 | # define SA_RESTART 0 |
1714 | #endif |
2310 | #endif |
1715 | |
2311 | |
1716 | void |
2312 | void noinline |
1717 | ev_signal_start (EV_P_ ev_signal *w) |
2313 | ev_signal_start (EV_P_ ev_signal *w) |
1718 | { |
2314 | { |
1719 | #if EV_MULTIPLICITY |
2315 | #if EV_MULTIPLICITY |
1720 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2316 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1721 | #endif |
2317 | #endif |
1722 | if (expect_false (ev_is_active (w))) |
2318 | if (expect_false (ev_is_active (w))) |
1723 | return; |
2319 | return; |
1724 | |
2320 | |
1725 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2321 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1726 | |
2322 | |
|
|
2323 | evpipe_init (EV_A); |
|
|
2324 | |
|
|
2325 | EV_FREQUENT_CHECK; |
|
|
2326 | |
|
|
2327 | { |
|
|
2328 | #ifndef _WIN32 |
|
|
2329 | sigset_t full, prev; |
|
|
2330 | sigfillset (&full); |
|
|
2331 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2332 | #endif |
|
|
2333 | |
|
|
2334 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
|
|
2335 | |
|
|
2336 | #ifndef _WIN32 |
|
|
2337 | sigprocmask (SIG_SETMASK, &prev, 0); |
|
|
2338 | #endif |
|
|
2339 | } |
|
|
2340 | |
1727 | ev_start (EV_A_ (W)w, 1); |
2341 | ev_start (EV_A_ (W)w, 1); |
1728 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
|
|
1729 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
2342 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
1730 | |
2343 | |
1731 | if (!((WL)w)->next) |
2344 | if (!((WL)w)->next) |
1732 | { |
2345 | { |
1733 | #if _WIN32 |
2346 | #if _WIN32 |
1734 | signal (w->signum, sighandler); |
2347 | signal (w->signum, ev_sighandler); |
1735 | #else |
2348 | #else |
1736 | struct sigaction sa; |
2349 | struct sigaction sa; |
1737 | sa.sa_handler = sighandler; |
2350 | sa.sa_handler = ev_sighandler; |
1738 | sigfillset (&sa.sa_mask); |
2351 | sigfillset (&sa.sa_mask); |
1739 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2352 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1740 | sigaction (w->signum, &sa, 0); |
2353 | sigaction (w->signum, &sa, 0); |
1741 | #endif |
2354 | #endif |
1742 | } |
2355 | } |
1743 | } |
|
|
1744 | |
2356 | |
1745 | void |
2357 | EV_FREQUENT_CHECK; |
|
|
2358 | } |
|
|
2359 | |
|
|
2360 | void noinline |
1746 | ev_signal_stop (EV_P_ ev_signal *w) |
2361 | ev_signal_stop (EV_P_ ev_signal *w) |
1747 | { |
2362 | { |
1748 | ev_clear_pending (EV_A_ (W)w); |
2363 | clear_pending (EV_A_ (W)w); |
1749 | if (expect_false (!ev_is_active (w))) |
2364 | if (expect_false (!ev_is_active (w))) |
1750 | return; |
2365 | return; |
1751 | |
2366 | |
|
|
2367 | EV_FREQUENT_CHECK; |
|
|
2368 | |
1752 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
2369 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
1753 | ev_stop (EV_A_ (W)w); |
2370 | ev_stop (EV_A_ (W)w); |
1754 | |
2371 | |
1755 | if (!signals [w->signum - 1].head) |
2372 | if (!signals [w->signum - 1].head) |
1756 | signal (w->signum, SIG_DFL); |
2373 | signal (w->signum, SIG_DFL); |
|
|
2374 | |
|
|
2375 | EV_FREQUENT_CHECK; |
1757 | } |
2376 | } |
1758 | |
2377 | |
1759 | void |
2378 | void |
1760 | ev_child_start (EV_P_ ev_child *w) |
2379 | ev_child_start (EV_P_ ev_child *w) |
1761 | { |
2380 | { |
… | |
… | |
1763 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2382 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1764 | #endif |
2383 | #endif |
1765 | if (expect_false (ev_is_active (w))) |
2384 | if (expect_false (ev_is_active (w))) |
1766 | return; |
2385 | return; |
1767 | |
2386 | |
|
|
2387 | EV_FREQUENT_CHECK; |
|
|
2388 | |
1768 | ev_start (EV_A_ (W)w, 1); |
2389 | ev_start (EV_A_ (W)w, 1); |
1769 | wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2390 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
|
|
2391 | |
|
|
2392 | EV_FREQUENT_CHECK; |
1770 | } |
2393 | } |
1771 | |
2394 | |
1772 | void |
2395 | void |
1773 | ev_child_stop (EV_P_ ev_child *w) |
2396 | ev_child_stop (EV_P_ ev_child *w) |
1774 | { |
2397 | { |
1775 | ev_clear_pending (EV_A_ (W)w); |
2398 | clear_pending (EV_A_ (W)w); |
1776 | if (expect_false (!ev_is_active (w))) |
2399 | if (expect_false (!ev_is_active (w))) |
1777 | return; |
2400 | return; |
1778 | |
2401 | |
|
|
2402 | EV_FREQUENT_CHECK; |
|
|
2403 | |
1779 | wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2404 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1780 | ev_stop (EV_A_ (W)w); |
2405 | ev_stop (EV_A_ (W)w); |
|
|
2406 | |
|
|
2407 | EV_FREQUENT_CHECK; |
1781 | } |
2408 | } |
1782 | |
2409 | |
1783 | #if EV_STAT_ENABLE |
2410 | #if EV_STAT_ENABLE |
1784 | |
2411 | |
1785 | # ifdef _WIN32 |
2412 | # ifdef _WIN32 |
… | |
… | |
1803 | if (w->wd < 0) |
2430 | if (w->wd < 0) |
1804 | { |
2431 | { |
1805 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2432 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
1806 | |
2433 | |
1807 | /* monitor some parent directory for speedup hints */ |
2434 | /* monitor some parent directory for speedup hints */ |
|
|
2435 | /* note that exceeding the hardcoded limit is not a correctness issue, */ |
|
|
2436 | /* but an efficiency issue only */ |
1808 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2437 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
1809 | { |
2438 | { |
1810 | char path [4096]; |
2439 | char path [4096]; |
1811 | strcpy (path, w->path); |
2440 | strcpy (path, w->path); |
1812 | |
2441 | |
… | |
… | |
2011 | else |
2640 | else |
2012 | #endif |
2641 | #endif |
2013 | ev_timer_start (EV_A_ &w->timer); |
2642 | ev_timer_start (EV_A_ &w->timer); |
2014 | |
2643 | |
2015 | ev_start (EV_A_ (W)w, 1); |
2644 | ev_start (EV_A_ (W)w, 1); |
|
|
2645 | |
|
|
2646 | EV_FREQUENT_CHECK; |
2016 | } |
2647 | } |
2017 | |
2648 | |
2018 | void |
2649 | void |
2019 | ev_stat_stop (EV_P_ ev_stat *w) |
2650 | ev_stat_stop (EV_P_ ev_stat *w) |
2020 | { |
2651 | { |
2021 | ev_clear_pending (EV_A_ (W)w); |
2652 | clear_pending (EV_A_ (W)w); |
2022 | if (expect_false (!ev_is_active (w))) |
2653 | if (expect_false (!ev_is_active (w))) |
2023 | return; |
2654 | return; |
2024 | |
2655 | |
|
|
2656 | EV_FREQUENT_CHECK; |
|
|
2657 | |
2025 | #if EV_USE_INOTIFY |
2658 | #if EV_USE_INOTIFY |
2026 | infy_del (EV_A_ w); |
2659 | infy_del (EV_A_ w); |
2027 | #endif |
2660 | #endif |
2028 | ev_timer_stop (EV_A_ &w->timer); |
2661 | ev_timer_stop (EV_A_ &w->timer); |
2029 | |
2662 | |
2030 | ev_stop (EV_A_ (W)w); |
2663 | ev_stop (EV_A_ (W)w); |
|
|
2664 | |
|
|
2665 | EV_FREQUENT_CHECK; |
2031 | } |
2666 | } |
2032 | #endif |
2667 | #endif |
2033 | |
2668 | |
2034 | #if EV_IDLE_ENABLE |
2669 | #if EV_IDLE_ENABLE |
2035 | void |
2670 | void |
… | |
… | |
2037 | { |
2672 | { |
2038 | if (expect_false (ev_is_active (w))) |
2673 | if (expect_false (ev_is_active (w))) |
2039 | return; |
2674 | return; |
2040 | |
2675 | |
2041 | pri_adjust (EV_A_ (W)w); |
2676 | pri_adjust (EV_A_ (W)w); |
|
|
2677 | |
|
|
2678 | EV_FREQUENT_CHECK; |
2042 | |
2679 | |
2043 | { |
2680 | { |
2044 | int active = ++idlecnt [ABSPRI (w)]; |
2681 | int active = ++idlecnt [ABSPRI (w)]; |
2045 | |
2682 | |
2046 | ++idleall; |
2683 | ++idleall; |
2047 | ev_start (EV_A_ (W)w, active); |
2684 | ev_start (EV_A_ (W)w, active); |
2048 | |
2685 | |
2049 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
2686 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
2050 | idles [ABSPRI (w)][active - 1] = w; |
2687 | idles [ABSPRI (w)][active - 1] = w; |
2051 | } |
2688 | } |
|
|
2689 | |
|
|
2690 | EV_FREQUENT_CHECK; |
2052 | } |
2691 | } |
2053 | |
2692 | |
2054 | void |
2693 | void |
2055 | ev_idle_stop (EV_P_ ev_idle *w) |
2694 | ev_idle_stop (EV_P_ ev_idle *w) |
2056 | { |
2695 | { |
2057 | ev_clear_pending (EV_A_ (W)w); |
2696 | clear_pending (EV_A_ (W)w); |
2058 | if (expect_false (!ev_is_active (w))) |
2697 | if (expect_false (!ev_is_active (w))) |
2059 | return; |
2698 | return; |
2060 | |
2699 | |
|
|
2700 | EV_FREQUENT_CHECK; |
|
|
2701 | |
2061 | { |
2702 | { |
2062 | int active = ((W)w)->active; |
2703 | int active = ev_active (w); |
2063 | |
2704 | |
2064 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2705 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2065 | ((W)idles [ABSPRI (w)][active - 1])->active = active; |
2706 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
2066 | |
2707 | |
2067 | ev_stop (EV_A_ (W)w); |
2708 | ev_stop (EV_A_ (W)w); |
2068 | --idleall; |
2709 | --idleall; |
2069 | } |
2710 | } |
|
|
2711 | |
|
|
2712 | EV_FREQUENT_CHECK; |
2070 | } |
2713 | } |
2071 | #endif |
2714 | #endif |
2072 | |
2715 | |
2073 | void |
2716 | void |
2074 | ev_prepare_start (EV_P_ ev_prepare *w) |
2717 | ev_prepare_start (EV_P_ ev_prepare *w) |
2075 | { |
2718 | { |
2076 | if (expect_false (ev_is_active (w))) |
2719 | if (expect_false (ev_is_active (w))) |
2077 | return; |
2720 | return; |
|
|
2721 | |
|
|
2722 | EV_FREQUENT_CHECK; |
2078 | |
2723 | |
2079 | ev_start (EV_A_ (W)w, ++preparecnt); |
2724 | ev_start (EV_A_ (W)w, ++preparecnt); |
2080 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
2725 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
2081 | prepares [preparecnt - 1] = w; |
2726 | prepares [preparecnt - 1] = w; |
|
|
2727 | |
|
|
2728 | EV_FREQUENT_CHECK; |
2082 | } |
2729 | } |
2083 | |
2730 | |
2084 | void |
2731 | void |
2085 | ev_prepare_stop (EV_P_ ev_prepare *w) |
2732 | ev_prepare_stop (EV_P_ ev_prepare *w) |
2086 | { |
2733 | { |
2087 | ev_clear_pending (EV_A_ (W)w); |
2734 | clear_pending (EV_A_ (W)w); |
2088 | if (expect_false (!ev_is_active (w))) |
2735 | if (expect_false (!ev_is_active (w))) |
2089 | return; |
2736 | return; |
2090 | |
2737 | |
|
|
2738 | EV_FREQUENT_CHECK; |
|
|
2739 | |
2091 | { |
2740 | { |
2092 | int active = ((W)w)->active; |
2741 | int active = ev_active (w); |
|
|
2742 | |
2093 | prepares [active - 1] = prepares [--preparecnt]; |
2743 | prepares [active - 1] = prepares [--preparecnt]; |
2094 | ((W)prepares [active - 1])->active = active; |
2744 | ev_active (prepares [active - 1]) = active; |
2095 | } |
2745 | } |
2096 | |
2746 | |
2097 | ev_stop (EV_A_ (W)w); |
2747 | ev_stop (EV_A_ (W)w); |
|
|
2748 | |
|
|
2749 | EV_FREQUENT_CHECK; |
2098 | } |
2750 | } |
2099 | |
2751 | |
2100 | void |
2752 | void |
2101 | ev_check_start (EV_P_ ev_check *w) |
2753 | ev_check_start (EV_P_ ev_check *w) |
2102 | { |
2754 | { |
2103 | if (expect_false (ev_is_active (w))) |
2755 | if (expect_false (ev_is_active (w))) |
2104 | return; |
2756 | return; |
|
|
2757 | |
|
|
2758 | EV_FREQUENT_CHECK; |
2105 | |
2759 | |
2106 | ev_start (EV_A_ (W)w, ++checkcnt); |
2760 | ev_start (EV_A_ (W)w, ++checkcnt); |
2107 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
2761 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
2108 | checks [checkcnt - 1] = w; |
2762 | checks [checkcnt - 1] = w; |
|
|
2763 | |
|
|
2764 | EV_FREQUENT_CHECK; |
2109 | } |
2765 | } |
2110 | |
2766 | |
2111 | void |
2767 | void |
2112 | ev_check_stop (EV_P_ ev_check *w) |
2768 | ev_check_stop (EV_P_ ev_check *w) |
2113 | { |
2769 | { |
2114 | ev_clear_pending (EV_A_ (W)w); |
2770 | clear_pending (EV_A_ (W)w); |
2115 | if (expect_false (!ev_is_active (w))) |
2771 | if (expect_false (!ev_is_active (w))) |
2116 | return; |
2772 | return; |
2117 | |
2773 | |
|
|
2774 | EV_FREQUENT_CHECK; |
|
|
2775 | |
2118 | { |
2776 | { |
2119 | int active = ((W)w)->active; |
2777 | int active = ev_active (w); |
|
|
2778 | |
2120 | checks [active - 1] = checks [--checkcnt]; |
2779 | checks [active - 1] = checks [--checkcnt]; |
2121 | ((W)checks [active - 1])->active = active; |
2780 | ev_active (checks [active - 1]) = active; |
2122 | } |
2781 | } |
2123 | |
2782 | |
2124 | ev_stop (EV_A_ (W)w); |
2783 | ev_stop (EV_A_ (W)w); |
|
|
2784 | |
|
|
2785 | EV_FREQUENT_CHECK; |
2125 | } |
2786 | } |
2126 | |
2787 | |
2127 | #if EV_EMBED_ENABLE |
2788 | #if EV_EMBED_ENABLE |
2128 | void noinline |
2789 | void noinline |
2129 | ev_embed_sweep (EV_P_ ev_embed *w) |
2790 | ev_embed_sweep (EV_P_ ev_embed *w) |
2130 | { |
2791 | { |
2131 | ev_loop (w->loop, EVLOOP_NONBLOCK); |
2792 | ev_loop (w->other, EVLOOP_NONBLOCK); |
2132 | } |
2793 | } |
2133 | |
2794 | |
2134 | static void |
2795 | static void |
2135 | embed_cb (EV_P_ ev_io *io, int revents) |
2796 | embed_io_cb (EV_P_ ev_io *io, int revents) |
2136 | { |
2797 | { |
2137 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
2798 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
2138 | |
2799 | |
2139 | if (ev_cb (w)) |
2800 | if (ev_cb (w)) |
2140 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2801 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2141 | else |
2802 | else |
2142 | ev_embed_sweep (loop, w); |
2803 | ev_loop (w->other, EVLOOP_NONBLOCK); |
2143 | } |
2804 | } |
|
|
2805 | |
|
|
2806 | static void |
|
|
2807 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
|
|
2808 | { |
|
|
2809 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
|
|
2810 | |
|
|
2811 | { |
|
|
2812 | struct ev_loop *loop = w->other; |
|
|
2813 | |
|
|
2814 | while (fdchangecnt) |
|
|
2815 | { |
|
|
2816 | fd_reify (EV_A); |
|
|
2817 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
2818 | } |
|
|
2819 | } |
|
|
2820 | } |
|
|
2821 | |
|
|
2822 | #if 0 |
|
|
2823 | static void |
|
|
2824 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
|
|
2825 | { |
|
|
2826 | ev_idle_stop (EV_A_ idle); |
|
|
2827 | } |
|
|
2828 | #endif |
2144 | |
2829 | |
2145 | void |
2830 | void |
2146 | ev_embed_start (EV_P_ ev_embed *w) |
2831 | ev_embed_start (EV_P_ ev_embed *w) |
2147 | { |
2832 | { |
2148 | if (expect_false (ev_is_active (w))) |
2833 | if (expect_false (ev_is_active (w))) |
2149 | return; |
2834 | return; |
2150 | |
2835 | |
2151 | { |
2836 | { |
2152 | struct ev_loop *loop = w->loop; |
2837 | struct ev_loop *loop = w->other; |
2153 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2838 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2154 | ev_io_init (&w->io, embed_cb, backend_fd, EV_READ); |
2839 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2155 | } |
2840 | } |
|
|
2841 | |
|
|
2842 | EV_FREQUENT_CHECK; |
2156 | |
2843 | |
2157 | ev_set_priority (&w->io, ev_priority (w)); |
2844 | ev_set_priority (&w->io, ev_priority (w)); |
2158 | ev_io_start (EV_A_ &w->io); |
2845 | ev_io_start (EV_A_ &w->io); |
2159 | |
2846 | |
|
|
2847 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
|
|
2848 | ev_set_priority (&w->prepare, EV_MINPRI); |
|
|
2849 | ev_prepare_start (EV_A_ &w->prepare); |
|
|
2850 | |
|
|
2851 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
|
|
2852 | |
2160 | ev_start (EV_A_ (W)w, 1); |
2853 | ev_start (EV_A_ (W)w, 1); |
|
|
2854 | |
|
|
2855 | EV_FREQUENT_CHECK; |
2161 | } |
2856 | } |
2162 | |
2857 | |
2163 | void |
2858 | void |
2164 | ev_embed_stop (EV_P_ ev_embed *w) |
2859 | ev_embed_stop (EV_P_ ev_embed *w) |
2165 | { |
2860 | { |
2166 | ev_clear_pending (EV_A_ (W)w); |
2861 | clear_pending (EV_A_ (W)w); |
2167 | if (expect_false (!ev_is_active (w))) |
2862 | if (expect_false (!ev_is_active (w))) |
2168 | return; |
2863 | return; |
2169 | |
2864 | |
|
|
2865 | EV_FREQUENT_CHECK; |
|
|
2866 | |
2170 | ev_io_stop (EV_A_ &w->io); |
2867 | ev_io_stop (EV_A_ &w->io); |
|
|
2868 | ev_prepare_stop (EV_A_ &w->prepare); |
2171 | |
2869 | |
2172 | ev_stop (EV_A_ (W)w); |
2870 | ev_stop (EV_A_ (W)w); |
|
|
2871 | |
|
|
2872 | EV_FREQUENT_CHECK; |
2173 | } |
2873 | } |
2174 | #endif |
2874 | #endif |
2175 | |
2875 | |
2176 | #if EV_FORK_ENABLE |
2876 | #if EV_FORK_ENABLE |
2177 | void |
2877 | void |
2178 | ev_fork_start (EV_P_ ev_fork *w) |
2878 | ev_fork_start (EV_P_ ev_fork *w) |
2179 | { |
2879 | { |
2180 | if (expect_false (ev_is_active (w))) |
2880 | if (expect_false (ev_is_active (w))) |
2181 | return; |
2881 | return; |
|
|
2882 | |
|
|
2883 | EV_FREQUENT_CHECK; |
2182 | |
2884 | |
2183 | ev_start (EV_A_ (W)w, ++forkcnt); |
2885 | ev_start (EV_A_ (W)w, ++forkcnt); |
2184 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
2886 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
2185 | forks [forkcnt - 1] = w; |
2887 | forks [forkcnt - 1] = w; |
|
|
2888 | |
|
|
2889 | EV_FREQUENT_CHECK; |
2186 | } |
2890 | } |
2187 | |
2891 | |
2188 | void |
2892 | void |
2189 | ev_fork_stop (EV_P_ ev_fork *w) |
2893 | ev_fork_stop (EV_P_ ev_fork *w) |
2190 | { |
2894 | { |
2191 | ev_clear_pending (EV_A_ (W)w); |
2895 | clear_pending (EV_A_ (W)w); |
2192 | if (expect_false (!ev_is_active (w))) |
2896 | if (expect_false (!ev_is_active (w))) |
2193 | return; |
2897 | return; |
2194 | |
2898 | |
|
|
2899 | EV_FREQUENT_CHECK; |
|
|
2900 | |
2195 | { |
2901 | { |
2196 | int active = ((W)w)->active; |
2902 | int active = ev_active (w); |
|
|
2903 | |
2197 | forks [active - 1] = forks [--forkcnt]; |
2904 | forks [active - 1] = forks [--forkcnt]; |
2198 | ((W)forks [active - 1])->active = active; |
2905 | ev_active (forks [active - 1]) = active; |
2199 | } |
2906 | } |
2200 | |
2907 | |
2201 | ev_stop (EV_A_ (W)w); |
2908 | ev_stop (EV_A_ (W)w); |
|
|
2909 | |
|
|
2910 | EV_FREQUENT_CHECK; |
|
|
2911 | } |
|
|
2912 | #endif |
|
|
2913 | |
|
|
2914 | #if EV_ASYNC_ENABLE |
|
|
2915 | void |
|
|
2916 | ev_async_start (EV_P_ ev_async *w) |
|
|
2917 | { |
|
|
2918 | if (expect_false (ev_is_active (w))) |
|
|
2919 | return; |
|
|
2920 | |
|
|
2921 | evpipe_init (EV_A); |
|
|
2922 | |
|
|
2923 | EV_FREQUENT_CHECK; |
|
|
2924 | |
|
|
2925 | ev_start (EV_A_ (W)w, ++asynccnt); |
|
|
2926 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
|
|
2927 | asyncs [asynccnt - 1] = w; |
|
|
2928 | |
|
|
2929 | EV_FREQUENT_CHECK; |
|
|
2930 | } |
|
|
2931 | |
|
|
2932 | void |
|
|
2933 | ev_async_stop (EV_P_ ev_async *w) |
|
|
2934 | { |
|
|
2935 | clear_pending (EV_A_ (W)w); |
|
|
2936 | if (expect_false (!ev_is_active (w))) |
|
|
2937 | return; |
|
|
2938 | |
|
|
2939 | EV_FREQUENT_CHECK; |
|
|
2940 | |
|
|
2941 | { |
|
|
2942 | int active = ev_active (w); |
|
|
2943 | |
|
|
2944 | asyncs [active - 1] = asyncs [--asynccnt]; |
|
|
2945 | ev_active (asyncs [active - 1]) = active; |
|
|
2946 | } |
|
|
2947 | |
|
|
2948 | ev_stop (EV_A_ (W)w); |
|
|
2949 | |
|
|
2950 | EV_FREQUENT_CHECK; |
|
|
2951 | } |
|
|
2952 | |
|
|
2953 | void |
|
|
2954 | ev_async_send (EV_P_ ev_async *w) |
|
|
2955 | { |
|
|
2956 | w->sent = 1; |
|
|
2957 | evpipe_write (EV_A_ &gotasync); |
2202 | } |
2958 | } |
2203 | #endif |
2959 | #endif |
2204 | |
2960 | |
2205 | /*****************************************************************************/ |
2961 | /*****************************************************************************/ |
2206 | |
2962 | |
… | |
… | |
2264 | ev_timer_set (&once->to, timeout, 0.); |
3020 | ev_timer_set (&once->to, timeout, 0.); |
2265 | ev_timer_start (EV_A_ &once->to); |
3021 | ev_timer_start (EV_A_ &once->to); |
2266 | } |
3022 | } |
2267 | } |
3023 | } |
2268 | |
3024 | |
|
|
3025 | #if EV_MULTIPLICITY |
|
|
3026 | #include "ev_wrap.h" |
|
|
3027 | #endif |
|
|
3028 | |
2269 | #ifdef __cplusplus |
3029 | #ifdef __cplusplus |
2270 | } |
3030 | } |
2271 | #endif |
3031 | #endif |
2272 | |
3032 | |