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> |
… | |
… | |
129 | #ifndef _WIN32 |
154 | #ifndef _WIN32 |
130 | # include <sys/time.h> |
155 | # include <sys/time.h> |
131 | # include <sys/wait.h> |
156 | # include <sys/wait.h> |
132 | # include <unistd.h> |
157 | # include <unistd.h> |
133 | #else |
158 | #else |
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159 | # include <io.h> |
134 | # define WIN32_LEAN_AND_MEAN |
160 | # define WIN32_LEAN_AND_MEAN |
135 | # include <windows.h> |
161 | # include <windows.h> |
136 | # ifndef EV_SELECT_IS_WINSOCKET |
162 | # ifndef EV_SELECT_IS_WINSOCKET |
137 | # define EV_SELECT_IS_WINSOCKET 1 |
163 | # define EV_SELECT_IS_WINSOCKET 1 |
138 | # endif |
164 | # endif |
139 | #endif |
165 | #endif |
140 | |
166 | |
141 | /**/ |
167 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
142 | |
168 | |
143 | #ifndef EV_USE_MONOTONIC |
169 | #ifndef EV_USE_MONOTONIC |
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170 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
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171 | # define EV_USE_MONOTONIC 1 |
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172 | # else |
144 | # define EV_USE_MONOTONIC 0 |
173 | # define EV_USE_MONOTONIC 0 |
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174 | # endif |
145 | #endif |
175 | #endif |
146 | |
176 | |
147 | #ifndef EV_USE_REALTIME |
177 | #ifndef EV_USE_REALTIME |
148 | # define EV_USE_REALTIME 0 |
178 | # define EV_USE_REALTIME 0 |
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179 | #endif |
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180 | |
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181 | #ifndef EV_USE_NANOSLEEP |
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182 | # if _POSIX_C_SOURCE >= 199309L |
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183 | # define EV_USE_NANOSLEEP 1 |
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184 | # else |
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185 | # define EV_USE_NANOSLEEP 0 |
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186 | # endif |
149 | #endif |
187 | #endif |
150 | |
188 | |
151 | #ifndef EV_USE_SELECT |
189 | #ifndef EV_USE_SELECT |
152 | # define EV_USE_SELECT 1 |
190 | # define EV_USE_SELECT 1 |
153 | #endif |
191 | #endif |
… | |
… | |
159 | # define EV_USE_POLL 1 |
197 | # define EV_USE_POLL 1 |
160 | # endif |
198 | # endif |
161 | #endif |
199 | #endif |
162 | |
200 | |
163 | #ifndef EV_USE_EPOLL |
201 | #ifndef EV_USE_EPOLL |
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202 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
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203 | # define EV_USE_EPOLL 1 |
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204 | # else |
164 | # define EV_USE_EPOLL 0 |
205 | # define EV_USE_EPOLL 0 |
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206 | # endif |
165 | #endif |
207 | #endif |
166 | |
208 | |
167 | #ifndef EV_USE_KQUEUE |
209 | #ifndef EV_USE_KQUEUE |
168 | # define EV_USE_KQUEUE 0 |
210 | # define EV_USE_KQUEUE 0 |
169 | #endif |
211 | #endif |
… | |
… | |
171 | #ifndef EV_USE_PORT |
213 | #ifndef EV_USE_PORT |
172 | # define EV_USE_PORT 0 |
214 | # define EV_USE_PORT 0 |
173 | #endif |
215 | #endif |
174 | |
216 | |
175 | #ifndef EV_USE_INOTIFY |
217 | #ifndef EV_USE_INOTIFY |
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218 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
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219 | # define EV_USE_INOTIFY 1 |
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220 | # else |
176 | # define EV_USE_INOTIFY 0 |
221 | # define EV_USE_INOTIFY 0 |
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222 | # endif |
177 | #endif |
223 | #endif |
178 | |
224 | |
179 | #ifndef EV_PID_HASHSIZE |
225 | #ifndef EV_PID_HASHSIZE |
180 | # if EV_MINIMAL |
226 | # if EV_MINIMAL |
181 | # define EV_PID_HASHSIZE 1 |
227 | # define EV_PID_HASHSIZE 1 |
… | |
… | |
190 | # else |
236 | # else |
191 | # define EV_INOTIFY_HASHSIZE 16 |
237 | # define EV_INOTIFY_HASHSIZE 16 |
192 | # endif |
238 | # endif |
193 | #endif |
239 | #endif |
194 | |
240 | |
195 | /**/ |
241 | #ifndef EV_USE_EVENTFD |
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242 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
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243 | # define EV_USE_EVENTFD 1 |
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244 | # else |
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245 | # define EV_USE_EVENTFD 0 |
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246 | # endif |
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247 | #endif |
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248 | |
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249 | #if 0 /* debugging */ |
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250 | # define EV_VERIFY 3 |
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251 | # define EV_USE_4HEAP 1 |
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252 | # define EV_HEAP_CACHE_AT 1 |
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253 | #endif |
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254 | |
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255 | #ifndef EV_VERIFY |
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256 | # define EV_VERIFY !EV_MINIMAL |
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257 | #endif |
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258 | |
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259 | #ifndef EV_USE_4HEAP |
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260 | # define EV_USE_4HEAP !EV_MINIMAL |
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261 | #endif |
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262 | |
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263 | #ifndef EV_HEAP_CACHE_AT |
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264 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
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265 | #endif |
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266 | |
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267 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
196 | |
268 | |
197 | #ifndef CLOCK_MONOTONIC |
269 | #ifndef CLOCK_MONOTONIC |
198 | # undef EV_USE_MONOTONIC |
270 | # undef EV_USE_MONOTONIC |
199 | # define EV_USE_MONOTONIC 0 |
271 | # define EV_USE_MONOTONIC 0 |
200 | #endif |
272 | #endif |
… | |
… | |
202 | #ifndef CLOCK_REALTIME |
274 | #ifndef CLOCK_REALTIME |
203 | # undef EV_USE_REALTIME |
275 | # undef EV_USE_REALTIME |
204 | # define EV_USE_REALTIME 0 |
276 | # define EV_USE_REALTIME 0 |
205 | #endif |
277 | #endif |
206 | |
278 | |
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279 | #if !EV_STAT_ENABLE |
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280 | # undef EV_USE_INOTIFY |
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281 | # define EV_USE_INOTIFY 0 |
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282 | #endif |
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283 | |
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284 | #if !EV_USE_NANOSLEEP |
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285 | # ifndef _WIN32 |
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286 | # include <sys/select.h> |
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287 | # endif |
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288 | #endif |
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289 | |
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290 | #if EV_USE_INOTIFY |
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291 | # include <sys/utsname.h> |
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292 | # include <sys/inotify.h> |
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293 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
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294 | # ifndef IN_DONT_FOLLOW |
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295 | # undef EV_USE_INOTIFY |
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296 | # define EV_USE_INOTIFY 0 |
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297 | # endif |
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298 | #endif |
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299 | |
207 | #if EV_SELECT_IS_WINSOCKET |
300 | #if EV_SELECT_IS_WINSOCKET |
208 | # include <winsock.h> |
301 | # include <winsock.h> |
209 | #endif |
302 | #endif |
210 | |
303 | |
211 | #if !EV_STAT_ENABLE |
304 | #if EV_USE_EVENTFD |
212 | # define EV_USE_INOTIFY 0 |
305 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
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306 | # include <stdint.h> |
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307 | # ifdef __cplusplus |
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308 | extern "C" { |
213 | #endif |
309 | # endif |
214 | |
310 | int eventfd (unsigned int initval, int flags); |
215 | #if EV_USE_INOTIFY |
311 | # ifdef __cplusplus |
216 | # include <sys/inotify.h> |
312 | } |
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313 | # endif |
217 | #endif |
314 | #endif |
218 | |
315 | |
219 | /**/ |
316 | /**/ |
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317 | |
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318 | #if EV_VERIFY >= 3 |
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319 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
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320 | #else |
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321 | # define EV_FREQUENT_CHECK do { } while (0) |
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322 | #endif |
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323 | |
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324 | /* |
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325 | * This is used to avoid floating point rounding problems. |
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326 | * It is added to ev_rt_now when scheduling periodics |
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327 | * to ensure progress, time-wise, even when rounding |
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328 | * errors are against us. |
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329 | * This value is good at least till the year 4000. |
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330 | * Better solutions welcome. |
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331 | */ |
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332 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
220 | |
333 | |
221 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
334 | #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) */ |
335 | #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 */ |
336 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
224 | |
337 | |
225 | #if __GNUC__ >= 3 |
338 | #if __GNUC__ >= 4 |
226 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
339 | # 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)) |
340 | # 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 |
341 | #else |
236 | # define expect(expr,value) (expr) |
342 | # 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 |
343 | # define noinline |
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344 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
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345 | # define inline |
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346 | # endif |
240 | #endif |
347 | #endif |
241 | |
348 | |
242 | #define expect_false(expr) expect ((expr) != 0, 0) |
349 | #define expect_false(expr) expect ((expr) != 0, 0) |
243 | #define expect_true(expr) expect ((expr) != 0, 1) |
350 | #define expect_true(expr) expect ((expr) != 0, 1) |
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351 | #define inline_size static inline |
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352 | |
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353 | #if EV_MINIMAL |
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354 | # define inline_speed static noinline |
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355 | #else |
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356 | # define inline_speed static inline |
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357 | #endif |
244 | |
358 | |
245 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
359 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
246 | #define ABSPRI(w) ((w)->priority - EV_MINPRI) |
360 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
247 | |
361 | |
248 | #define EMPTY0 /* required for microsofts broken pseudo-c compiler */ |
362 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
249 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
363 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
250 | |
364 | |
251 | typedef ev_watcher *W; |
365 | typedef ev_watcher *W; |
252 | typedef ev_watcher_list *WL; |
366 | typedef ev_watcher_list *WL; |
253 | typedef ev_watcher_time *WT; |
367 | typedef ev_watcher_time *WT; |
254 | |
368 | |
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369 | #define ev_active(w) ((W)(w))->active |
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370 | #define ev_at(w) ((WT)(w))->at |
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371 | |
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372 | #if EV_USE_MONOTONIC |
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373 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
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374 | /* giving it a reasonably high chance of working on typical architetcures */ |
255 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
375 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
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376 | #endif |
256 | |
377 | |
257 | #ifdef _WIN32 |
378 | #ifdef _WIN32 |
258 | # include "ev_win32.c" |
379 | # include "ev_win32.c" |
259 | #endif |
380 | #endif |
260 | |
381 | |
… | |
… | |
267 | { |
388 | { |
268 | syserr_cb = cb; |
389 | syserr_cb = cb; |
269 | } |
390 | } |
270 | |
391 | |
271 | static void noinline |
392 | static void noinline |
272 | syserr (const char *msg) |
393 | ev_syserr (const char *msg) |
273 | { |
394 | { |
274 | if (!msg) |
395 | if (!msg) |
275 | msg = "(libev) system error"; |
396 | msg = "(libev) system error"; |
276 | |
397 | |
277 | if (syserr_cb) |
398 | if (syserr_cb) |
… | |
… | |
281 | perror (msg); |
402 | perror (msg); |
282 | abort (); |
403 | abort (); |
283 | } |
404 | } |
284 | } |
405 | } |
285 | |
406 | |
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407 | static void * |
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408 | ev_realloc_emul (void *ptr, long size) |
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409 | { |
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410 | /* some systems, notably openbsd and darwin, fail to properly |
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411 | * implement realloc (x, 0) (as required by both ansi c-98 and |
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412 | * the single unix specification, so work around them here. |
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413 | */ |
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414 | |
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415 | if (size) |
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416 | return realloc (ptr, size); |
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417 | |
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418 | free (ptr); |
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419 | return 0; |
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420 | } |
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421 | |
286 | static void *(*alloc)(void *ptr, long size); |
422 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
287 | |
423 | |
288 | void |
424 | void |
289 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
425 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
290 | { |
426 | { |
291 | alloc = cb; |
427 | alloc = cb; |
292 | } |
428 | } |
293 | |
429 | |
294 | inline_speed void * |
430 | inline_speed void * |
295 | ev_realloc (void *ptr, long size) |
431 | ev_realloc (void *ptr, long size) |
296 | { |
432 | { |
297 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
433 | ptr = alloc (ptr, size); |
298 | |
434 | |
299 | if (!ptr && size) |
435 | if (!ptr && size) |
300 | { |
436 | { |
301 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
437 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
302 | abort (); |
438 | abort (); |
… | |
… | |
313 | typedef struct |
449 | typedef struct |
314 | { |
450 | { |
315 | WL head; |
451 | WL head; |
316 | unsigned char events; |
452 | unsigned char events; |
317 | unsigned char reify; |
453 | unsigned char reify; |
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454 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
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455 | unsigned char unused; |
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456 | #if EV_USE_EPOLL |
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457 | unsigned int egen; /* generation counter to counter epoll bugs */ |
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458 | #endif |
318 | #if EV_SELECT_IS_WINSOCKET |
459 | #if EV_SELECT_IS_WINSOCKET |
319 | SOCKET handle; |
460 | SOCKET handle; |
320 | #endif |
461 | #endif |
321 | } ANFD; |
462 | } ANFD; |
322 | |
463 | |
… | |
… | |
325 | W w; |
466 | W w; |
326 | int events; |
467 | int events; |
327 | } ANPENDING; |
468 | } ANPENDING; |
328 | |
469 | |
329 | #if EV_USE_INOTIFY |
470 | #if EV_USE_INOTIFY |
|
|
471 | /* hash table entry per inotify-id */ |
330 | typedef struct |
472 | typedef struct |
331 | { |
473 | { |
332 | WL head; |
474 | WL head; |
333 | } ANFS; |
475 | } ANFS; |
|
|
476 | #endif |
|
|
477 | |
|
|
478 | /* Heap Entry */ |
|
|
479 | #if EV_HEAP_CACHE_AT |
|
|
480 | typedef struct { |
|
|
481 | ev_tstamp at; |
|
|
482 | WT w; |
|
|
483 | } ANHE; |
|
|
484 | |
|
|
485 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
|
|
486 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
|
|
487 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
|
|
488 | #else |
|
|
489 | typedef WT ANHE; |
|
|
490 | |
|
|
491 | #define ANHE_w(he) (he) |
|
|
492 | #define ANHE_at(he) (he)->at |
|
|
493 | #define ANHE_at_cache(he) |
334 | #endif |
494 | #endif |
335 | |
495 | |
336 | #if EV_MULTIPLICITY |
496 | #if EV_MULTIPLICITY |
337 | |
497 | |
338 | struct ev_loop |
498 | struct ev_loop |
… | |
… | |
396 | { |
556 | { |
397 | return ev_rt_now; |
557 | return ev_rt_now; |
398 | } |
558 | } |
399 | #endif |
559 | #endif |
400 | |
560 | |
401 | #define array_roundsize(type,n) (((n) | 4) & ~3) |
561 | void |
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|
562 | ev_sleep (ev_tstamp delay) |
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|
563 | { |
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|
564 | if (delay > 0.) |
|
|
565 | { |
|
|
566 | #if EV_USE_NANOSLEEP |
|
|
567 | struct timespec ts; |
|
|
568 | |
|
|
569 | ts.tv_sec = (time_t)delay; |
|
|
570 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
571 | |
|
|
572 | nanosleep (&ts, 0); |
|
|
573 | #elif defined(_WIN32) |
|
|
574 | Sleep ((unsigned long)(delay * 1e3)); |
|
|
575 | #else |
|
|
576 | struct timeval tv; |
|
|
577 | |
|
|
578 | tv.tv_sec = (time_t)delay; |
|
|
579 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
|
|
580 | |
|
|
581 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
|
|
582 | /* somehting nto guaranteed by newer posix versions, but guaranteed */ |
|
|
583 | /* by older ones */ |
|
|
584 | select (0, 0, 0, 0, &tv); |
|
|
585 | #endif |
|
|
586 | } |
|
|
587 | } |
|
|
588 | |
|
|
589 | /*****************************************************************************/ |
|
|
590 | |
|
|
591 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
|
|
592 | |
|
|
593 | int inline_size |
|
|
594 | array_nextsize (int elem, int cur, int cnt) |
|
|
595 | { |
|
|
596 | int ncur = cur + 1; |
|
|
597 | |
|
|
598 | do |
|
|
599 | ncur <<= 1; |
|
|
600 | while (cnt > ncur); |
|
|
601 | |
|
|
602 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
|
|
603 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
|
|
604 | { |
|
|
605 | ncur *= elem; |
|
|
606 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
|
|
607 | ncur = ncur - sizeof (void *) * 4; |
|
|
608 | ncur /= elem; |
|
|
609 | } |
|
|
610 | |
|
|
611 | return ncur; |
|
|
612 | } |
|
|
613 | |
|
|
614 | static noinline void * |
|
|
615 | array_realloc (int elem, void *base, int *cur, int cnt) |
|
|
616 | { |
|
|
617 | *cur = array_nextsize (elem, *cur, cnt); |
|
|
618 | return ev_realloc (base, elem * *cur); |
|
|
619 | } |
|
|
620 | |
|
|
621 | #define array_init_zero(base,count) \ |
|
|
622 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
402 | |
623 | |
403 | #define array_needsize(type,base,cur,cnt,init) \ |
624 | #define array_needsize(type,base,cur,cnt,init) \ |
404 | if (expect_false ((cnt) > cur)) \ |
625 | if (expect_false ((cnt) > (cur))) \ |
405 | { \ |
626 | { \ |
406 | int newcnt = cur; \ |
627 | int ocur_ = (cur); \ |
407 | do \ |
628 | (base) = (type *)array_realloc \ |
408 | { \ |
629 | (sizeof (type), (base), &(cur), (cnt)); \ |
409 | newcnt = array_roundsize (type, newcnt << 1); \ |
630 | init ((base) + (ocur_), (cur) - ocur_); \ |
410 | } \ |
|
|
411 | while ((cnt) > newcnt); \ |
|
|
412 | \ |
|
|
413 | base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\ |
|
|
414 | init (base + cur, newcnt - cur); \ |
|
|
415 | cur = newcnt; \ |
|
|
416 | } |
631 | } |
417 | |
632 | |
|
|
633 | #if 0 |
418 | #define array_slim(type,stem) \ |
634 | #define array_slim(type,stem) \ |
419 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
635 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
420 | { \ |
636 | { \ |
421 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
637 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
422 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
638 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
423 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
639 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
424 | } |
640 | } |
|
|
641 | #endif |
425 | |
642 | |
426 | #define array_free(stem, idx) \ |
643 | #define array_free(stem, idx) \ |
427 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
644 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
428 | |
645 | |
429 | /*****************************************************************************/ |
646 | /*****************************************************************************/ |
430 | |
647 | |
431 | void noinline |
648 | void noinline |
432 | ev_feed_event (EV_P_ void *w, int revents) |
649 | ev_feed_event (EV_P_ void *w, int revents) |
433 | { |
650 | { |
434 | W w_ = (W)w; |
651 | W w_ = (W)w; |
|
|
652 | int pri = ABSPRI (w_); |
435 | |
653 | |
436 | if (expect_false (w_->pending)) |
654 | if (expect_false (w_->pending)) |
|
|
655 | pendings [pri][w_->pending - 1].events |= revents; |
|
|
656 | else |
437 | { |
657 | { |
|
|
658 | w_->pending = ++pendingcnt [pri]; |
|
|
659 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
|
|
660 | pendings [pri][w_->pending - 1].w = w_; |
438 | pendings [ABSPRI (w_)][w_->pending - 1].events |= revents; |
661 | pendings [pri][w_->pending - 1].events = revents; |
439 | return; |
|
|
440 | } |
662 | } |
441 | |
|
|
442 | w_->pending = ++pendingcnt [ABSPRI (w_)]; |
|
|
443 | array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2); |
|
|
444 | pendings [ABSPRI (w_)][w_->pending - 1].w = w_; |
|
|
445 | pendings [ABSPRI (w_)][w_->pending - 1].events = revents; |
|
|
446 | } |
663 | } |
447 | |
664 | |
448 | void inline_size |
665 | void inline_speed |
449 | queue_events (EV_P_ W *events, int eventcnt, int type) |
666 | queue_events (EV_P_ W *events, int eventcnt, int type) |
450 | { |
667 | { |
451 | int i; |
668 | int i; |
452 | |
669 | |
453 | for (i = 0; i < eventcnt; ++i) |
670 | for (i = 0; i < eventcnt; ++i) |
454 | ev_feed_event (EV_A_ events [i], type); |
671 | ev_feed_event (EV_A_ events [i], type); |
455 | } |
672 | } |
456 | |
673 | |
457 | /*****************************************************************************/ |
674 | /*****************************************************************************/ |
458 | |
675 | |
459 | void inline_size |
|
|
460 | anfds_init (ANFD *base, int count) |
|
|
461 | { |
|
|
462 | while (count--) |
|
|
463 | { |
|
|
464 | base->head = 0; |
|
|
465 | base->events = EV_NONE; |
|
|
466 | base->reify = 0; |
|
|
467 | |
|
|
468 | ++base; |
|
|
469 | } |
|
|
470 | } |
|
|
471 | |
|
|
472 | void inline_speed |
676 | void inline_speed |
473 | fd_event (EV_P_ int fd, int revents) |
677 | fd_event (EV_P_ int fd, int revents) |
474 | { |
678 | { |
475 | ANFD *anfd = anfds + fd; |
679 | ANFD *anfd = anfds + fd; |
476 | ev_io *w; |
680 | ev_io *w; |
… | |
… | |
485 | } |
689 | } |
486 | |
690 | |
487 | void |
691 | void |
488 | ev_feed_fd_event (EV_P_ int fd, int revents) |
692 | ev_feed_fd_event (EV_P_ int fd, int revents) |
489 | { |
693 | { |
|
|
694 | if (fd >= 0 && fd < anfdmax) |
490 | fd_event (EV_A_ fd, revents); |
695 | fd_event (EV_A_ fd, revents); |
491 | } |
696 | } |
492 | |
697 | |
493 | void inline_size |
698 | void inline_size |
494 | fd_reify (EV_P) |
699 | fd_reify (EV_P) |
495 | { |
700 | { |
… | |
… | |
499 | { |
704 | { |
500 | int fd = fdchanges [i]; |
705 | int fd = fdchanges [i]; |
501 | ANFD *anfd = anfds + fd; |
706 | ANFD *anfd = anfds + fd; |
502 | ev_io *w; |
707 | ev_io *w; |
503 | |
708 | |
504 | int events = 0; |
709 | unsigned char events = 0; |
505 | |
710 | |
506 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
711 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
507 | events |= w->events; |
712 | events |= (unsigned char)w->events; |
508 | |
713 | |
509 | #if EV_SELECT_IS_WINSOCKET |
714 | #if EV_SELECT_IS_WINSOCKET |
510 | if (events) |
715 | if (events) |
511 | { |
716 | { |
512 | unsigned long argp; |
717 | unsigned long arg; |
|
|
718 | #ifdef EV_FD_TO_WIN32_HANDLE |
|
|
719 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
720 | #else |
513 | anfd->handle = _get_osfhandle (fd); |
721 | anfd->handle = _get_osfhandle (fd); |
|
|
722 | #endif |
514 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
723 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
515 | } |
724 | } |
516 | #endif |
725 | #endif |
517 | |
726 | |
|
|
727 | { |
|
|
728 | unsigned char o_events = anfd->events; |
|
|
729 | unsigned char o_reify = anfd->reify; |
|
|
730 | |
518 | anfd->reify = 0; |
731 | anfd->reify = 0; |
519 | |
|
|
520 | backend_modify (EV_A_ fd, anfd->events, events); |
|
|
521 | anfd->events = events; |
732 | anfd->events = events; |
|
|
733 | |
|
|
734 | if (o_events != events || o_reify & EV_IOFDSET) |
|
|
735 | backend_modify (EV_A_ fd, o_events, events); |
|
|
736 | } |
522 | } |
737 | } |
523 | |
738 | |
524 | fdchangecnt = 0; |
739 | fdchangecnt = 0; |
525 | } |
740 | } |
526 | |
741 | |
527 | void inline_size |
742 | void inline_size |
528 | fd_change (EV_P_ int fd) |
743 | fd_change (EV_P_ int fd, int flags) |
529 | { |
744 | { |
530 | if (expect_false (anfds [fd].reify)) |
745 | unsigned char reify = anfds [fd].reify; |
531 | return; |
|
|
532 | |
|
|
533 | anfds [fd].reify = 1; |
746 | anfds [fd].reify |= flags; |
534 | |
747 | |
|
|
748 | if (expect_true (!reify)) |
|
|
749 | { |
535 | ++fdchangecnt; |
750 | ++fdchangecnt; |
536 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
751 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
537 | fdchanges [fdchangecnt - 1] = fd; |
752 | fdchanges [fdchangecnt - 1] = fd; |
|
|
753 | } |
538 | } |
754 | } |
539 | |
755 | |
540 | void inline_speed |
756 | void inline_speed |
541 | fd_kill (EV_P_ int fd) |
757 | fd_kill (EV_P_ int fd) |
542 | { |
758 | { |
… | |
… | |
565 | { |
781 | { |
566 | int fd; |
782 | int fd; |
567 | |
783 | |
568 | for (fd = 0; fd < anfdmax; ++fd) |
784 | for (fd = 0; fd < anfdmax; ++fd) |
569 | if (anfds [fd].events) |
785 | if (anfds [fd].events) |
570 | if (!fd_valid (fd) == -1 && errno == EBADF) |
786 | if (!fd_valid (fd) && errno == EBADF) |
571 | fd_kill (EV_A_ fd); |
787 | fd_kill (EV_A_ fd); |
572 | } |
788 | } |
573 | |
789 | |
574 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
790 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
575 | static void noinline |
791 | static void noinline |
… | |
… | |
593 | |
809 | |
594 | for (fd = 0; fd < anfdmax; ++fd) |
810 | for (fd = 0; fd < anfdmax; ++fd) |
595 | if (anfds [fd].events) |
811 | if (anfds [fd].events) |
596 | { |
812 | { |
597 | anfds [fd].events = 0; |
813 | anfds [fd].events = 0; |
|
|
814 | anfds [fd].emask = 0; |
598 | fd_change (EV_A_ fd); |
815 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
599 | } |
816 | } |
600 | } |
817 | } |
601 | |
818 | |
602 | /*****************************************************************************/ |
819 | /*****************************************************************************/ |
603 | |
820 | |
|
|
821 | /* |
|
|
822 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
|
|
823 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
|
|
824 | * the branching factor of the d-tree. |
|
|
825 | */ |
|
|
826 | |
|
|
827 | /* |
|
|
828 | * at the moment we allow libev the luxury of two heaps, |
|
|
829 | * a small-code-size 2-heap one and a ~1.5kb larger 4-heap |
|
|
830 | * which is more cache-efficient. |
|
|
831 | * the difference is about 5% with 50000+ watchers. |
|
|
832 | */ |
|
|
833 | #if EV_USE_4HEAP |
|
|
834 | |
|
|
835 | #define DHEAP 4 |
|
|
836 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
|
|
837 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
|
|
838 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
|
|
839 | |
|
|
840 | /* away from the root */ |
604 | void inline_speed |
841 | void inline_speed |
605 | upheap (WT *heap, int k) |
842 | downheap (ANHE *heap, int N, int k) |
606 | { |
843 | { |
607 | WT w = heap [k]; |
844 | ANHE he = heap [k]; |
|
|
845 | ANHE *E = heap + N + HEAP0; |
608 | |
846 | |
609 | while (k && heap [k >> 1]->at > w->at) |
847 | for (;;) |
610 | { |
|
|
611 | heap [k] = heap [k >> 1]; |
|
|
612 | ((W)heap [k])->active = k + 1; |
|
|
613 | k >>= 1; |
|
|
614 | } |
848 | { |
|
|
849 | ev_tstamp minat; |
|
|
850 | ANHE *minpos; |
|
|
851 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
615 | |
852 | |
|
|
853 | /* find minimum child */ |
|
|
854 | if (expect_true (pos + DHEAP - 1 < E)) |
|
|
855 | { |
|
|
856 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
857 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
858 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
859 | if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
860 | } |
|
|
861 | else if (pos < E) |
|
|
862 | { |
|
|
863 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
864 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
865 | if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
866 | if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
867 | } |
|
|
868 | else |
|
|
869 | break; |
|
|
870 | |
|
|
871 | if (ANHE_at (he) <= minat) |
|
|
872 | break; |
|
|
873 | |
|
|
874 | heap [k] = *minpos; |
|
|
875 | ev_active (ANHE_w (*minpos)) = k; |
|
|
876 | |
|
|
877 | k = minpos - heap; |
|
|
878 | } |
|
|
879 | |
616 | heap [k] = w; |
880 | heap [k] = he; |
617 | ((W)heap [k])->active = k + 1; |
881 | ev_active (ANHE_w (he)) = k; |
618 | |
|
|
619 | } |
882 | } |
620 | |
883 | |
|
|
884 | #else /* 4HEAP */ |
|
|
885 | |
|
|
886 | #define HEAP0 1 |
|
|
887 | #define HPARENT(k) ((k) >> 1) |
|
|
888 | #define UPHEAP_DONE(p,k) (!(p)) |
|
|
889 | |
|
|
890 | /* away from the root */ |
621 | void inline_speed |
891 | void inline_speed |
622 | downheap (WT *heap, int N, int k) |
892 | downheap (ANHE *heap, int N, int k) |
623 | { |
893 | { |
624 | WT w = heap [k]; |
894 | ANHE he = heap [k]; |
625 | |
895 | |
626 | while (k < (N >> 1)) |
896 | for (;;) |
627 | { |
897 | { |
628 | int j = k << 1; |
898 | int c = k << 1; |
629 | |
899 | |
630 | if (j + 1 < N && heap [j]->at > heap [j + 1]->at) |
900 | if (c > N + HEAP0 - 1) |
631 | ++j; |
|
|
632 | |
|
|
633 | if (w->at <= heap [j]->at) |
|
|
634 | break; |
901 | break; |
635 | |
902 | |
|
|
903 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
|
|
904 | ? 1 : 0; |
|
|
905 | |
|
|
906 | if (ANHE_at (he) <= ANHE_at (heap [c])) |
|
|
907 | break; |
|
|
908 | |
636 | heap [k] = heap [j]; |
909 | heap [k] = heap [c]; |
637 | ((W)heap [k])->active = k + 1; |
910 | ev_active (ANHE_w (heap [k])) = k; |
|
|
911 | |
638 | k = j; |
912 | k = c; |
639 | } |
913 | } |
640 | |
914 | |
641 | heap [k] = w; |
915 | heap [k] = he; |
642 | ((W)heap [k])->active = k + 1; |
916 | ev_active (ANHE_w (he)) = k; |
|
|
917 | } |
|
|
918 | #endif |
|
|
919 | |
|
|
920 | /* towards the root */ |
|
|
921 | void inline_speed |
|
|
922 | upheap (ANHE *heap, int k) |
|
|
923 | { |
|
|
924 | ANHE he = heap [k]; |
|
|
925 | |
|
|
926 | for (;;) |
|
|
927 | { |
|
|
928 | int p = HPARENT (k); |
|
|
929 | |
|
|
930 | if (UPHEAP_DONE (p, k) || ANHE_at (heap [p]) <= ANHE_at (he)) |
|
|
931 | break; |
|
|
932 | |
|
|
933 | heap [k] = heap [p]; |
|
|
934 | ev_active (ANHE_w (heap [k])) = k; |
|
|
935 | k = p; |
|
|
936 | } |
|
|
937 | |
|
|
938 | heap [k] = he; |
|
|
939 | ev_active (ANHE_w (he)) = k; |
643 | } |
940 | } |
644 | |
941 | |
645 | void inline_size |
942 | void inline_size |
646 | adjustheap (WT *heap, int N, int k) |
943 | adjustheap (ANHE *heap, int N, int k) |
647 | { |
944 | { |
|
|
945 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
648 | upheap (heap, k); |
946 | upheap (heap, k); |
|
|
947 | else |
649 | downheap (heap, N, k); |
948 | downheap (heap, N, k); |
|
|
949 | } |
|
|
950 | |
|
|
951 | /* rebuild the heap: this function is used only once and executed rarely */ |
|
|
952 | void inline_size |
|
|
953 | reheap (ANHE *heap, int N) |
|
|
954 | { |
|
|
955 | int i; |
|
|
956 | |
|
|
957 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
|
|
958 | /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */ |
|
|
959 | for (i = 0; i < N; ++i) |
|
|
960 | upheap (heap, i + HEAP0); |
650 | } |
961 | } |
651 | |
962 | |
652 | /*****************************************************************************/ |
963 | /*****************************************************************************/ |
653 | |
964 | |
654 | typedef struct |
965 | typedef struct |
655 | { |
966 | { |
656 | WL head; |
967 | WL head; |
657 | sig_atomic_t volatile gotsig; |
968 | EV_ATOMIC_T gotsig; |
658 | } ANSIG; |
969 | } ANSIG; |
659 | |
970 | |
660 | static ANSIG *signals; |
971 | static ANSIG *signals; |
661 | static int signalmax; |
972 | static int signalmax; |
662 | |
973 | |
663 | static int sigpipe [2]; |
974 | static EV_ATOMIC_T gotsig; |
664 | static sig_atomic_t volatile gotsig; |
|
|
665 | static ev_io sigev; |
|
|
666 | |
975 | |
|
|
976 | /*****************************************************************************/ |
|
|
977 | |
667 | void inline_size |
978 | void inline_speed |
668 | signals_init (ANSIG *base, int count) |
|
|
669 | { |
|
|
670 | while (count--) |
|
|
671 | { |
|
|
672 | base->head = 0; |
|
|
673 | base->gotsig = 0; |
|
|
674 | |
|
|
675 | ++base; |
|
|
676 | } |
|
|
677 | } |
|
|
678 | |
|
|
679 | static void |
|
|
680 | sighandler (int signum) |
|
|
681 | { |
|
|
682 | #if _WIN32 |
|
|
683 | signal (signum, sighandler); |
|
|
684 | #endif |
|
|
685 | |
|
|
686 | signals [signum - 1].gotsig = 1; |
|
|
687 | |
|
|
688 | if (!gotsig) |
|
|
689 | { |
|
|
690 | int old_errno = errno; |
|
|
691 | gotsig = 1; |
|
|
692 | write (sigpipe [1], &signum, 1); |
|
|
693 | errno = old_errno; |
|
|
694 | } |
|
|
695 | } |
|
|
696 | |
|
|
697 | void noinline |
|
|
698 | ev_feed_signal_event (EV_P_ int signum) |
|
|
699 | { |
|
|
700 | WL w; |
|
|
701 | |
|
|
702 | #if EV_MULTIPLICITY |
|
|
703 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
704 | #endif |
|
|
705 | |
|
|
706 | --signum; |
|
|
707 | |
|
|
708 | if (signum < 0 || signum >= signalmax) |
|
|
709 | return; |
|
|
710 | |
|
|
711 | signals [signum].gotsig = 0; |
|
|
712 | |
|
|
713 | for (w = signals [signum].head; w; w = w->next) |
|
|
714 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
715 | } |
|
|
716 | |
|
|
717 | static void |
|
|
718 | sigcb (EV_P_ ev_io *iow, int revents) |
|
|
719 | { |
|
|
720 | int signum; |
|
|
721 | |
|
|
722 | read (sigpipe [0], &revents, 1); |
|
|
723 | gotsig = 0; |
|
|
724 | |
|
|
725 | for (signum = signalmax; signum--; ) |
|
|
726 | if (signals [signum].gotsig) |
|
|
727 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
728 | } |
|
|
729 | |
|
|
730 | void inline_size |
|
|
731 | fd_intern (int fd) |
979 | fd_intern (int fd) |
732 | { |
980 | { |
733 | #ifdef _WIN32 |
981 | #ifdef _WIN32 |
734 | int arg = 1; |
982 | unsigned long arg = 1; |
735 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
983 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
736 | #else |
984 | #else |
737 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
985 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
738 | fcntl (fd, F_SETFL, O_NONBLOCK); |
986 | fcntl (fd, F_SETFL, O_NONBLOCK); |
739 | #endif |
987 | #endif |
740 | } |
988 | } |
741 | |
989 | |
742 | static void noinline |
990 | static void noinline |
743 | siginit (EV_P) |
991 | evpipe_init (EV_P) |
744 | { |
992 | { |
|
|
993 | if (!ev_is_active (&pipeev)) |
|
|
994 | { |
|
|
995 | #if EV_USE_EVENTFD |
|
|
996 | if ((evfd = eventfd (0, 0)) >= 0) |
|
|
997 | { |
|
|
998 | evpipe [0] = -1; |
|
|
999 | fd_intern (evfd); |
|
|
1000 | ev_io_set (&pipeev, evfd, EV_READ); |
|
|
1001 | } |
|
|
1002 | else |
|
|
1003 | #endif |
|
|
1004 | { |
|
|
1005 | while (pipe (evpipe)) |
|
|
1006 | ev_syserr ("(libev) error creating signal/async pipe"); |
|
|
1007 | |
745 | fd_intern (sigpipe [0]); |
1008 | fd_intern (evpipe [0]); |
746 | fd_intern (sigpipe [1]); |
1009 | fd_intern (evpipe [1]); |
|
|
1010 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
|
|
1011 | } |
747 | |
1012 | |
748 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
|
|
749 | ev_io_start (EV_A_ &sigev); |
1013 | ev_io_start (EV_A_ &pipeev); |
750 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1014 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
1015 | } |
|
|
1016 | } |
|
|
1017 | |
|
|
1018 | void inline_size |
|
|
1019 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1020 | { |
|
|
1021 | if (!*flag) |
|
|
1022 | { |
|
|
1023 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1024 | |
|
|
1025 | *flag = 1; |
|
|
1026 | |
|
|
1027 | #if EV_USE_EVENTFD |
|
|
1028 | if (evfd >= 0) |
|
|
1029 | { |
|
|
1030 | uint64_t counter = 1; |
|
|
1031 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
1032 | } |
|
|
1033 | else |
|
|
1034 | #endif |
|
|
1035 | write (evpipe [1], &old_errno, 1); |
|
|
1036 | |
|
|
1037 | errno = old_errno; |
|
|
1038 | } |
|
|
1039 | } |
|
|
1040 | |
|
|
1041 | static void |
|
|
1042 | pipecb (EV_P_ ev_io *iow, int revents) |
|
|
1043 | { |
|
|
1044 | #if EV_USE_EVENTFD |
|
|
1045 | if (evfd >= 0) |
|
|
1046 | { |
|
|
1047 | uint64_t counter; |
|
|
1048 | read (evfd, &counter, sizeof (uint64_t)); |
|
|
1049 | } |
|
|
1050 | else |
|
|
1051 | #endif |
|
|
1052 | { |
|
|
1053 | char dummy; |
|
|
1054 | read (evpipe [0], &dummy, 1); |
|
|
1055 | } |
|
|
1056 | |
|
|
1057 | if (gotsig && ev_is_default_loop (EV_A)) |
|
|
1058 | { |
|
|
1059 | int signum; |
|
|
1060 | gotsig = 0; |
|
|
1061 | |
|
|
1062 | for (signum = signalmax; signum--; ) |
|
|
1063 | if (signals [signum].gotsig) |
|
|
1064 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
1065 | } |
|
|
1066 | |
|
|
1067 | #if EV_ASYNC_ENABLE |
|
|
1068 | if (gotasync) |
|
|
1069 | { |
|
|
1070 | int i; |
|
|
1071 | gotasync = 0; |
|
|
1072 | |
|
|
1073 | for (i = asynccnt; i--; ) |
|
|
1074 | if (asyncs [i]->sent) |
|
|
1075 | { |
|
|
1076 | asyncs [i]->sent = 0; |
|
|
1077 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
|
|
1078 | } |
|
|
1079 | } |
|
|
1080 | #endif |
751 | } |
1081 | } |
752 | |
1082 | |
753 | /*****************************************************************************/ |
1083 | /*****************************************************************************/ |
754 | |
1084 | |
|
|
1085 | static void |
|
|
1086 | ev_sighandler (int signum) |
|
|
1087 | { |
|
|
1088 | #if EV_MULTIPLICITY |
|
|
1089 | struct ev_loop *loop = &default_loop_struct; |
|
|
1090 | #endif |
|
|
1091 | |
|
|
1092 | #if _WIN32 |
|
|
1093 | signal (signum, ev_sighandler); |
|
|
1094 | #endif |
|
|
1095 | |
|
|
1096 | signals [signum - 1].gotsig = 1; |
|
|
1097 | evpipe_write (EV_A_ &gotsig); |
|
|
1098 | } |
|
|
1099 | |
|
|
1100 | void noinline |
|
|
1101 | ev_feed_signal_event (EV_P_ int signum) |
|
|
1102 | { |
|
|
1103 | WL w; |
|
|
1104 | |
|
|
1105 | #if EV_MULTIPLICITY |
|
|
1106 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1107 | #endif |
|
|
1108 | |
|
|
1109 | --signum; |
|
|
1110 | |
|
|
1111 | if (signum < 0 || signum >= signalmax) |
|
|
1112 | return; |
|
|
1113 | |
|
|
1114 | signals [signum].gotsig = 0; |
|
|
1115 | |
|
|
1116 | for (w = signals [signum].head; w; w = w->next) |
|
|
1117 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
1118 | } |
|
|
1119 | |
|
|
1120 | /*****************************************************************************/ |
|
|
1121 | |
755 | static ev_child *childs [EV_PID_HASHSIZE]; |
1122 | static WL childs [EV_PID_HASHSIZE]; |
756 | |
1123 | |
757 | #ifndef _WIN32 |
1124 | #ifndef _WIN32 |
758 | |
1125 | |
759 | static ev_signal childev; |
1126 | static ev_signal childev; |
760 | |
1127 | |
|
|
1128 | #ifndef WIFCONTINUED |
|
|
1129 | # define WIFCONTINUED(status) 0 |
|
|
1130 | #endif |
|
|
1131 | |
761 | void inline_speed |
1132 | void inline_speed |
762 | child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) |
1133 | child_reap (EV_P_ int chain, int pid, int status) |
763 | { |
1134 | { |
764 | ev_child *w; |
1135 | ev_child *w; |
|
|
1136 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
765 | |
1137 | |
766 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1138 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1139 | { |
767 | if (w->pid == pid || !w->pid) |
1140 | if ((w->pid == pid || !w->pid) |
|
|
1141 | && (!traced || (w->flags & 1))) |
768 | { |
1142 | { |
769 | ev_priority (w) = ev_priority (sw); /* need to do it *now* */ |
1143 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
770 | w->rpid = pid; |
1144 | w->rpid = pid; |
771 | w->rstatus = status; |
1145 | w->rstatus = status; |
772 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
1146 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
773 | } |
1147 | } |
|
|
1148 | } |
774 | } |
1149 | } |
775 | |
1150 | |
776 | #ifndef WCONTINUED |
1151 | #ifndef WCONTINUED |
777 | # define WCONTINUED 0 |
1152 | # define WCONTINUED 0 |
778 | #endif |
1153 | #endif |
… | |
… | |
787 | if (!WCONTINUED |
1162 | if (!WCONTINUED |
788 | || errno != EINVAL |
1163 | || errno != EINVAL |
789 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
1164 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
790 | return; |
1165 | return; |
791 | |
1166 | |
792 | /* make sure we are called again until all childs have been reaped */ |
1167 | /* make sure we are called again until all children have been reaped */ |
793 | /* we need to do it this way so that the callback gets called before we continue */ |
1168 | /* we need to do it this way so that the callback gets called before we continue */ |
794 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1169 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
795 | |
1170 | |
796 | child_reap (EV_A_ sw, pid, pid, status); |
1171 | child_reap (EV_A_ pid, pid, status); |
797 | if (EV_PID_HASHSIZE > 1) |
1172 | if (EV_PID_HASHSIZE > 1) |
798 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1173 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
799 | } |
1174 | } |
800 | |
1175 | |
801 | #endif |
1176 | #endif |
802 | |
1177 | |
803 | /*****************************************************************************/ |
1178 | /*****************************************************************************/ |
… | |
… | |
875 | } |
1250 | } |
876 | |
1251 | |
877 | unsigned int |
1252 | unsigned int |
878 | ev_embeddable_backends (void) |
1253 | ev_embeddable_backends (void) |
879 | { |
1254 | { |
880 | return EVBACKEND_EPOLL |
1255 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
881 | | EVBACKEND_KQUEUE |
1256 | |
882 | | EVBACKEND_PORT; |
1257 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
|
|
1258 | /* please fix it and tell me how to detect the fix */ |
|
|
1259 | flags &= ~EVBACKEND_EPOLL; |
|
|
1260 | |
|
|
1261 | return flags; |
883 | } |
1262 | } |
884 | |
1263 | |
885 | unsigned int |
1264 | unsigned int |
886 | ev_backend (EV_P) |
1265 | ev_backend (EV_P) |
887 | { |
1266 | { |
888 | return backend; |
1267 | return backend; |
|
|
1268 | } |
|
|
1269 | |
|
|
1270 | unsigned int |
|
|
1271 | ev_loop_count (EV_P) |
|
|
1272 | { |
|
|
1273 | return loop_count; |
|
|
1274 | } |
|
|
1275 | |
|
|
1276 | void |
|
|
1277 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1278 | { |
|
|
1279 | io_blocktime = interval; |
|
|
1280 | } |
|
|
1281 | |
|
|
1282 | void |
|
|
1283 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1284 | { |
|
|
1285 | timeout_blocktime = interval; |
889 | } |
1286 | } |
890 | |
1287 | |
891 | static void noinline |
1288 | static void noinline |
892 | loop_init (EV_P_ unsigned int flags) |
1289 | loop_init (EV_P_ unsigned int flags) |
893 | { |
1290 | { |
… | |
… | |
899 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1296 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
900 | have_monotonic = 1; |
1297 | have_monotonic = 1; |
901 | } |
1298 | } |
902 | #endif |
1299 | #endif |
903 | |
1300 | |
904 | ev_rt_now = ev_time (); |
1301 | ev_rt_now = ev_time (); |
905 | mn_now = get_clock (); |
1302 | mn_now = get_clock (); |
906 | now_floor = mn_now; |
1303 | now_floor = mn_now; |
907 | rtmn_diff = ev_rt_now - mn_now; |
1304 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1305 | |
|
|
1306 | io_blocktime = 0.; |
|
|
1307 | timeout_blocktime = 0.; |
|
|
1308 | backend = 0; |
|
|
1309 | backend_fd = -1; |
|
|
1310 | gotasync = 0; |
|
|
1311 | #if EV_USE_INOTIFY |
|
|
1312 | fs_fd = -2; |
|
|
1313 | #endif |
908 | |
1314 | |
909 | /* pid check not overridable via env */ |
1315 | /* pid check not overridable via env */ |
910 | #ifndef _WIN32 |
1316 | #ifndef _WIN32 |
911 | if (flags & EVFLAG_FORKCHECK) |
1317 | if (flags & EVFLAG_FORKCHECK) |
912 | curpid = getpid (); |
1318 | curpid = getpid (); |
… | |
… | |
915 | if (!(flags & EVFLAG_NOENV) |
1321 | if (!(flags & EVFLAG_NOENV) |
916 | && !enable_secure () |
1322 | && !enable_secure () |
917 | && getenv ("LIBEV_FLAGS")) |
1323 | && getenv ("LIBEV_FLAGS")) |
918 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1324 | flags = atoi (getenv ("LIBEV_FLAGS")); |
919 | |
1325 | |
920 | if (!(flags & 0x0000ffffUL)) |
1326 | if (!(flags & 0x0000ffffU)) |
921 | flags |= ev_recommended_backends (); |
1327 | flags |= ev_recommended_backends (); |
922 | |
|
|
923 | backend = 0; |
|
|
924 | backend_fd = -1; |
|
|
925 | #if EV_USE_INOTIFY |
|
|
926 | fs_fd = -2; |
|
|
927 | #endif |
|
|
928 | |
1328 | |
929 | #if EV_USE_PORT |
1329 | #if EV_USE_PORT |
930 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1330 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
931 | #endif |
1331 | #endif |
932 | #if EV_USE_KQUEUE |
1332 | #if EV_USE_KQUEUE |
… | |
… | |
940 | #endif |
1340 | #endif |
941 | #if EV_USE_SELECT |
1341 | #if EV_USE_SELECT |
942 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1342 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
943 | #endif |
1343 | #endif |
944 | |
1344 | |
945 | ev_init (&sigev, sigcb); |
1345 | ev_init (&pipeev, pipecb); |
946 | ev_set_priority (&sigev, EV_MAXPRI); |
1346 | ev_set_priority (&pipeev, EV_MAXPRI); |
947 | } |
1347 | } |
948 | } |
1348 | } |
949 | |
1349 | |
950 | static void noinline |
1350 | static void noinline |
951 | loop_destroy (EV_P) |
1351 | loop_destroy (EV_P) |
952 | { |
1352 | { |
953 | int i; |
1353 | int i; |
|
|
1354 | |
|
|
1355 | if (ev_is_active (&pipeev)) |
|
|
1356 | { |
|
|
1357 | ev_ref (EV_A); /* signal watcher */ |
|
|
1358 | ev_io_stop (EV_A_ &pipeev); |
|
|
1359 | |
|
|
1360 | #if EV_USE_EVENTFD |
|
|
1361 | if (evfd >= 0) |
|
|
1362 | close (evfd); |
|
|
1363 | #endif |
|
|
1364 | |
|
|
1365 | if (evpipe [0] >= 0) |
|
|
1366 | { |
|
|
1367 | close (evpipe [0]); |
|
|
1368 | close (evpipe [1]); |
|
|
1369 | } |
|
|
1370 | } |
954 | |
1371 | |
955 | #if EV_USE_INOTIFY |
1372 | #if EV_USE_INOTIFY |
956 | if (fs_fd >= 0) |
1373 | if (fs_fd >= 0) |
957 | close (fs_fd); |
1374 | close (fs_fd); |
958 | #endif |
1375 | #endif |
… | |
… | |
975 | #if EV_USE_SELECT |
1392 | #if EV_USE_SELECT |
976 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
1393 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
977 | #endif |
1394 | #endif |
978 | |
1395 | |
979 | for (i = NUMPRI; i--; ) |
1396 | for (i = NUMPRI; i--; ) |
|
|
1397 | { |
980 | array_free (pending, [i]); |
1398 | array_free (pending, [i]); |
|
|
1399 | #if EV_IDLE_ENABLE |
|
|
1400 | array_free (idle, [i]); |
|
|
1401 | #endif |
|
|
1402 | } |
|
|
1403 | |
|
|
1404 | ev_free (anfds); anfdmax = 0; |
981 | |
1405 | |
982 | /* have to use the microsoft-never-gets-it-right macro */ |
1406 | /* have to use the microsoft-never-gets-it-right macro */ |
983 | array_free (fdchange, EMPTY0); |
1407 | array_free (fdchange, EMPTY); |
984 | array_free (timer, EMPTY0); |
1408 | array_free (timer, EMPTY); |
985 | #if EV_PERIODIC_ENABLE |
1409 | #if EV_PERIODIC_ENABLE |
986 | array_free (periodic, EMPTY0); |
1410 | array_free (periodic, EMPTY); |
987 | #endif |
1411 | #endif |
|
|
1412 | #if EV_FORK_ENABLE |
988 | array_free (idle, EMPTY0); |
1413 | array_free (fork, EMPTY); |
|
|
1414 | #endif |
989 | array_free (prepare, EMPTY0); |
1415 | array_free (prepare, EMPTY); |
990 | array_free (check, EMPTY0); |
1416 | array_free (check, EMPTY); |
|
|
1417 | #if EV_ASYNC_ENABLE |
|
|
1418 | array_free (async, EMPTY); |
|
|
1419 | #endif |
991 | |
1420 | |
992 | backend = 0; |
1421 | backend = 0; |
993 | } |
1422 | } |
994 | |
1423 | |
|
|
1424 | #if EV_USE_INOTIFY |
995 | void inline_size infy_fork (EV_P); |
1425 | void inline_size infy_fork (EV_P); |
|
|
1426 | #endif |
996 | |
1427 | |
997 | void inline_size |
1428 | void inline_size |
998 | loop_fork (EV_P) |
1429 | loop_fork (EV_P) |
999 | { |
1430 | { |
1000 | #if EV_USE_PORT |
1431 | #if EV_USE_PORT |
… | |
… | |
1008 | #endif |
1439 | #endif |
1009 | #if EV_USE_INOTIFY |
1440 | #if EV_USE_INOTIFY |
1010 | infy_fork (EV_A); |
1441 | infy_fork (EV_A); |
1011 | #endif |
1442 | #endif |
1012 | |
1443 | |
1013 | if (ev_is_active (&sigev)) |
1444 | if (ev_is_active (&pipeev)) |
1014 | { |
1445 | { |
1015 | /* default loop */ |
1446 | /* this "locks" the handlers against writing to the pipe */ |
|
|
1447 | /* while we modify the fd vars */ |
|
|
1448 | gotsig = 1; |
|
|
1449 | #if EV_ASYNC_ENABLE |
|
|
1450 | gotasync = 1; |
|
|
1451 | #endif |
1016 | |
1452 | |
1017 | ev_ref (EV_A); |
1453 | ev_ref (EV_A); |
1018 | ev_io_stop (EV_A_ &sigev); |
1454 | ev_io_stop (EV_A_ &pipeev); |
|
|
1455 | |
|
|
1456 | #if EV_USE_EVENTFD |
|
|
1457 | if (evfd >= 0) |
|
|
1458 | close (evfd); |
|
|
1459 | #endif |
|
|
1460 | |
|
|
1461 | if (evpipe [0] >= 0) |
|
|
1462 | { |
1019 | close (sigpipe [0]); |
1463 | close (evpipe [0]); |
1020 | close (sigpipe [1]); |
1464 | close (evpipe [1]); |
|
|
1465 | } |
1021 | |
1466 | |
1022 | while (pipe (sigpipe)) |
|
|
1023 | syserr ("(libev) error creating pipe"); |
|
|
1024 | |
|
|
1025 | siginit (EV_A); |
1467 | evpipe_init (EV_A); |
|
|
1468 | /* now iterate over everything, in case we missed something */ |
|
|
1469 | pipecb (EV_A_ &pipeev, EV_READ); |
1026 | } |
1470 | } |
1027 | |
1471 | |
1028 | postfork = 0; |
1472 | postfork = 0; |
1029 | } |
1473 | } |
1030 | |
1474 | |
1031 | #if EV_MULTIPLICITY |
1475 | #if EV_MULTIPLICITY |
|
|
1476 | |
1032 | struct ev_loop * |
1477 | struct ev_loop * |
1033 | ev_loop_new (unsigned int flags) |
1478 | ev_loop_new (unsigned int flags) |
1034 | { |
1479 | { |
1035 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1480 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1036 | |
1481 | |
… | |
… | |
1052 | } |
1497 | } |
1053 | |
1498 | |
1054 | void |
1499 | void |
1055 | ev_loop_fork (EV_P) |
1500 | ev_loop_fork (EV_P) |
1056 | { |
1501 | { |
1057 | postfork = 1; |
1502 | postfork = 1; /* must be in line with ev_default_fork */ |
1058 | } |
1503 | } |
1059 | |
1504 | |
|
|
1505 | #if EV_VERIFY |
|
|
1506 | static void noinline |
|
|
1507 | verify_watcher (EV_P_ W w) |
|
|
1508 | { |
|
|
1509 | assert (("watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
|
|
1510 | |
|
|
1511 | if (w->pending) |
|
|
1512 | assert (("pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
|
|
1513 | } |
|
|
1514 | |
|
|
1515 | static void noinline |
|
|
1516 | verify_heap (EV_P_ ANHE *heap, int N) |
|
|
1517 | { |
|
|
1518 | int i; |
|
|
1519 | |
|
|
1520 | for (i = HEAP0; i < N + HEAP0; ++i) |
|
|
1521 | { |
|
|
1522 | assert (("active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
|
|
1523 | assert (("heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
|
|
1524 | assert (("heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
|
|
1525 | |
|
|
1526 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
|
|
1527 | } |
|
|
1528 | } |
|
|
1529 | |
|
|
1530 | static void noinline |
|
|
1531 | array_verify (EV_P_ W *ws, int cnt) |
|
|
1532 | { |
|
|
1533 | while (cnt--) |
|
|
1534 | { |
|
|
1535 | assert (("active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
|
|
1536 | verify_watcher (EV_A_ ws [cnt]); |
|
|
1537 | } |
|
|
1538 | } |
|
|
1539 | #endif |
|
|
1540 | |
|
|
1541 | void |
|
|
1542 | ev_loop_verify (EV_P) |
|
|
1543 | { |
|
|
1544 | #if EV_VERIFY |
|
|
1545 | int i; |
|
|
1546 | WL w; |
|
|
1547 | |
|
|
1548 | assert (activecnt >= -1); |
|
|
1549 | |
|
|
1550 | assert (fdchangemax >= fdchangecnt); |
|
|
1551 | for (i = 0; i < fdchangecnt; ++i) |
|
|
1552 | assert (("negative fd in fdchanges", fdchanges [i] >= 0)); |
|
|
1553 | |
|
|
1554 | assert (anfdmax >= 0); |
|
|
1555 | for (i = 0; i < anfdmax; ++i) |
|
|
1556 | for (w = anfds [i].head; w; w = w->next) |
|
|
1557 | { |
|
|
1558 | verify_watcher (EV_A_ (W)w); |
|
|
1559 | assert (("inactive fd watcher on anfd list", ev_active (w) == 1)); |
|
|
1560 | assert (("fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
|
|
1561 | } |
|
|
1562 | |
|
|
1563 | assert (timermax >= timercnt); |
|
|
1564 | verify_heap (EV_A_ timers, timercnt); |
|
|
1565 | |
|
|
1566 | #if EV_PERIODIC_ENABLE |
|
|
1567 | assert (periodicmax >= periodiccnt); |
|
|
1568 | verify_heap (EV_A_ periodics, periodiccnt); |
|
|
1569 | #endif |
|
|
1570 | |
|
|
1571 | for (i = NUMPRI; i--; ) |
|
|
1572 | { |
|
|
1573 | assert (pendingmax [i] >= pendingcnt [i]); |
|
|
1574 | #if EV_IDLE_ENABLE |
|
|
1575 | assert (idleall >= 0); |
|
|
1576 | assert (idlemax [i] >= idlecnt [i]); |
|
|
1577 | array_verify (EV_A_ (W *)idles [i], idlecnt [i]); |
|
|
1578 | #endif |
|
|
1579 | } |
|
|
1580 | |
|
|
1581 | #if EV_FORK_ENABLE |
|
|
1582 | assert (forkmax >= forkcnt); |
|
|
1583 | array_verify (EV_A_ (W *)forks, forkcnt); |
|
|
1584 | #endif |
|
|
1585 | |
|
|
1586 | #if EV_ASYNC_ENABLE |
|
|
1587 | assert (asyncmax >= asynccnt); |
|
|
1588 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
|
|
1589 | #endif |
|
|
1590 | |
|
|
1591 | assert (preparemax >= preparecnt); |
|
|
1592 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
1593 | |
|
|
1594 | assert (checkmax >= checkcnt); |
|
|
1595 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
1596 | |
|
|
1597 | # if 0 |
|
|
1598 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1599 | for (signum = signalmax; signum--; ) if (signals [signum].gotsig) |
1060 | #endif |
1600 | # endif |
|
|
1601 | #endif |
|
|
1602 | } |
|
|
1603 | |
|
|
1604 | #endif /* multiplicity */ |
1061 | |
1605 | |
1062 | #if EV_MULTIPLICITY |
1606 | #if EV_MULTIPLICITY |
1063 | struct ev_loop * |
1607 | struct ev_loop * |
1064 | ev_default_loop_init (unsigned int flags) |
1608 | ev_default_loop_init (unsigned int flags) |
1065 | #else |
1609 | #else |
1066 | int |
1610 | int |
1067 | ev_default_loop (unsigned int flags) |
1611 | ev_default_loop (unsigned int flags) |
1068 | #endif |
1612 | #endif |
1069 | { |
1613 | { |
1070 | if (sigpipe [0] == sigpipe [1]) |
|
|
1071 | if (pipe (sigpipe)) |
|
|
1072 | return 0; |
|
|
1073 | |
|
|
1074 | if (!ev_default_loop_ptr) |
1614 | if (!ev_default_loop_ptr) |
1075 | { |
1615 | { |
1076 | #if EV_MULTIPLICITY |
1616 | #if EV_MULTIPLICITY |
1077 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1617 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1078 | #else |
1618 | #else |
… | |
… | |
1081 | |
1621 | |
1082 | loop_init (EV_A_ flags); |
1622 | loop_init (EV_A_ flags); |
1083 | |
1623 | |
1084 | if (ev_backend (EV_A)) |
1624 | if (ev_backend (EV_A)) |
1085 | { |
1625 | { |
1086 | siginit (EV_A); |
|
|
1087 | |
|
|
1088 | #ifndef _WIN32 |
1626 | #ifndef _WIN32 |
1089 | ev_signal_init (&childev, childcb, SIGCHLD); |
1627 | ev_signal_init (&childev, childcb, SIGCHLD); |
1090 | ev_set_priority (&childev, EV_MAXPRI); |
1628 | ev_set_priority (&childev, EV_MAXPRI); |
1091 | ev_signal_start (EV_A_ &childev); |
1629 | ev_signal_start (EV_A_ &childev); |
1092 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1630 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
… | |
… | |
1104 | { |
1642 | { |
1105 | #if EV_MULTIPLICITY |
1643 | #if EV_MULTIPLICITY |
1106 | struct ev_loop *loop = ev_default_loop_ptr; |
1644 | struct ev_loop *loop = ev_default_loop_ptr; |
1107 | #endif |
1645 | #endif |
1108 | |
1646 | |
|
|
1647 | ev_default_loop_ptr = 0; |
|
|
1648 | |
1109 | #ifndef _WIN32 |
1649 | #ifndef _WIN32 |
1110 | ev_ref (EV_A); /* child watcher */ |
1650 | ev_ref (EV_A); /* child watcher */ |
1111 | ev_signal_stop (EV_A_ &childev); |
1651 | ev_signal_stop (EV_A_ &childev); |
1112 | #endif |
1652 | #endif |
1113 | |
1653 | |
1114 | ev_ref (EV_A); /* signal watcher */ |
|
|
1115 | ev_io_stop (EV_A_ &sigev); |
|
|
1116 | |
|
|
1117 | close (sigpipe [0]); sigpipe [0] = 0; |
|
|
1118 | close (sigpipe [1]); sigpipe [1] = 0; |
|
|
1119 | |
|
|
1120 | loop_destroy (EV_A); |
1654 | loop_destroy (EV_A); |
1121 | } |
1655 | } |
1122 | |
1656 | |
1123 | void |
1657 | void |
1124 | ev_default_fork (void) |
1658 | ev_default_fork (void) |
1125 | { |
1659 | { |
1126 | #if EV_MULTIPLICITY |
1660 | #if EV_MULTIPLICITY |
1127 | struct ev_loop *loop = ev_default_loop_ptr; |
1661 | struct ev_loop *loop = ev_default_loop_ptr; |
1128 | #endif |
1662 | #endif |
1129 | |
1663 | |
1130 | if (backend) |
1664 | ev_loop_fork (EV_A); |
1131 | postfork = 1; |
|
|
1132 | } |
1665 | } |
1133 | |
1666 | |
1134 | /*****************************************************************************/ |
1667 | /*****************************************************************************/ |
1135 | |
1668 | |
1136 | int inline_size |
1669 | void |
1137 | any_pending (EV_P) |
1670 | ev_invoke (EV_P_ void *w, int revents) |
1138 | { |
1671 | { |
1139 | int pri; |
1672 | EV_CB_INVOKE ((W)w, revents); |
1140 | |
|
|
1141 | for (pri = NUMPRI; pri--; ) |
|
|
1142 | if (pendingcnt [pri]) |
|
|
1143 | return 1; |
|
|
1144 | |
|
|
1145 | return 0; |
|
|
1146 | } |
1673 | } |
1147 | |
1674 | |
1148 | void inline_speed |
1675 | void inline_speed |
1149 | call_pending (EV_P) |
1676 | call_pending (EV_P) |
1150 | { |
1677 | { |
… | |
… | |
1159 | { |
1686 | { |
1160 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
1687 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
1161 | |
1688 | |
1162 | p->w->pending = 0; |
1689 | p->w->pending = 0; |
1163 | EV_CB_INVOKE (p->w, p->events); |
1690 | EV_CB_INVOKE (p->w, p->events); |
|
|
1691 | EV_FREQUENT_CHECK; |
1164 | } |
1692 | } |
1165 | } |
1693 | } |
1166 | } |
1694 | } |
1167 | |
1695 | |
|
|
1696 | #if EV_IDLE_ENABLE |
|
|
1697 | void inline_size |
|
|
1698 | idle_reify (EV_P) |
|
|
1699 | { |
|
|
1700 | if (expect_false (idleall)) |
|
|
1701 | { |
|
|
1702 | int pri; |
|
|
1703 | |
|
|
1704 | for (pri = NUMPRI; pri--; ) |
|
|
1705 | { |
|
|
1706 | if (pendingcnt [pri]) |
|
|
1707 | break; |
|
|
1708 | |
|
|
1709 | if (idlecnt [pri]) |
|
|
1710 | { |
|
|
1711 | queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE); |
|
|
1712 | break; |
|
|
1713 | } |
|
|
1714 | } |
|
|
1715 | } |
|
|
1716 | } |
|
|
1717 | #endif |
|
|
1718 | |
1168 | void inline_size |
1719 | void inline_size |
1169 | timers_reify (EV_P) |
1720 | timers_reify (EV_P) |
1170 | { |
1721 | { |
|
|
1722 | EV_FREQUENT_CHECK; |
|
|
1723 | |
1171 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
1724 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
1172 | { |
1725 | { |
1173 | ev_timer *w = timers [0]; |
1726 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
1174 | |
1727 | |
1175 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
1728 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
1176 | |
1729 | |
1177 | /* first reschedule or stop timer */ |
1730 | /* first reschedule or stop timer */ |
1178 | if (w->repeat) |
1731 | if (w->repeat) |
1179 | { |
1732 | { |
|
|
1733 | ev_at (w) += w->repeat; |
|
|
1734 | if (ev_at (w) < mn_now) |
|
|
1735 | ev_at (w) = mn_now; |
|
|
1736 | |
1180 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1737 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1181 | |
1738 | |
1182 | ((WT)w)->at += w->repeat; |
1739 | ANHE_at_cache (timers [HEAP0]); |
1183 | if (((WT)w)->at < mn_now) |
|
|
1184 | ((WT)w)->at = mn_now; |
|
|
1185 | |
|
|
1186 | downheap ((WT *)timers, timercnt, 0); |
1740 | downheap (timers, timercnt, HEAP0); |
1187 | } |
1741 | } |
1188 | else |
1742 | else |
1189 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1743 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1190 | |
1744 | |
|
|
1745 | EV_FREQUENT_CHECK; |
1191 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
1746 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
1192 | } |
1747 | } |
1193 | } |
1748 | } |
1194 | |
1749 | |
1195 | #if EV_PERIODIC_ENABLE |
1750 | #if EV_PERIODIC_ENABLE |
1196 | void inline_size |
1751 | void inline_size |
1197 | periodics_reify (EV_P) |
1752 | periodics_reify (EV_P) |
1198 | { |
1753 | { |
|
|
1754 | EV_FREQUENT_CHECK; |
|
|
1755 | |
1199 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
1756 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
1200 | { |
1757 | { |
1201 | ev_periodic *w = periodics [0]; |
1758 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
1202 | |
1759 | |
1203 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
1760 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
1204 | |
1761 | |
1205 | /* first reschedule or stop timer */ |
1762 | /* first reschedule or stop timer */ |
1206 | if (w->reschedule_cb) |
1763 | if (w->reschedule_cb) |
1207 | { |
1764 | { |
1208 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); |
1765 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
1766 | |
1209 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
1767 | assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
|
|
1768 | |
|
|
1769 | ANHE_at_cache (periodics [HEAP0]); |
1210 | downheap ((WT *)periodics, periodiccnt, 0); |
1770 | downheap (periodics, periodiccnt, HEAP0); |
1211 | } |
1771 | } |
1212 | else if (w->interval) |
1772 | else if (w->interval) |
1213 | { |
1773 | { |
1214 | ((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
1774 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1215 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
1775 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
1776 | /* this might happen because of floating point inexactness */ |
|
|
1777 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
1778 | { |
|
|
1779 | ev_at (w) += w->interval; |
|
|
1780 | |
|
|
1781 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
1782 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
1783 | /* has effectively asked to get triggered more often than possible */ |
|
|
1784 | if (ev_at (w) < ev_rt_now) |
|
|
1785 | ev_at (w) = ev_rt_now; |
|
|
1786 | } |
|
|
1787 | |
|
|
1788 | ANHE_at_cache (periodics [HEAP0]); |
1216 | downheap ((WT *)periodics, periodiccnt, 0); |
1789 | downheap (periodics, periodiccnt, HEAP0); |
1217 | } |
1790 | } |
1218 | else |
1791 | else |
1219 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1792 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1220 | |
1793 | |
|
|
1794 | EV_FREQUENT_CHECK; |
1221 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
1795 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
1222 | } |
1796 | } |
1223 | } |
1797 | } |
1224 | |
1798 | |
1225 | static void noinline |
1799 | static void noinline |
1226 | periodics_reschedule (EV_P) |
1800 | periodics_reschedule (EV_P) |
1227 | { |
1801 | { |
1228 | int i; |
1802 | int i; |
1229 | |
1803 | |
1230 | /* adjust periodics after time jump */ |
1804 | /* adjust periodics after time jump */ |
1231 | for (i = 0; i < periodiccnt; ++i) |
1805 | for (i = HEAP0; i < periodiccnt + HEAP0; ++i) |
1232 | { |
1806 | { |
1233 | ev_periodic *w = periodics [i]; |
1807 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
1234 | |
1808 | |
1235 | if (w->reschedule_cb) |
1809 | if (w->reschedule_cb) |
1236 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1810 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1237 | else if (w->interval) |
1811 | else if (w->interval) |
1238 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1812 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1813 | |
|
|
1814 | ANHE_at_cache (periodics [i]); |
|
|
1815 | } |
|
|
1816 | |
|
|
1817 | reheap (periodics, periodiccnt); |
|
|
1818 | } |
|
|
1819 | #endif |
|
|
1820 | |
|
|
1821 | void inline_speed |
|
|
1822 | time_update (EV_P_ ev_tstamp max_block) |
|
|
1823 | { |
|
|
1824 | int i; |
|
|
1825 | |
|
|
1826 | #if EV_USE_MONOTONIC |
|
|
1827 | if (expect_true (have_monotonic)) |
1239 | } |
1828 | { |
|
|
1829 | ev_tstamp odiff = rtmn_diff; |
1240 | |
1830 | |
1241 | /* now rebuild the heap */ |
|
|
1242 | for (i = periodiccnt >> 1; i--; ) |
|
|
1243 | downheap ((WT *)periodics, periodiccnt, i); |
|
|
1244 | } |
|
|
1245 | #endif |
|
|
1246 | |
|
|
1247 | int inline_size |
|
|
1248 | time_update_monotonic (EV_P) |
|
|
1249 | { |
|
|
1250 | mn_now = get_clock (); |
1831 | mn_now = get_clock (); |
1251 | |
1832 | |
|
|
1833 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
|
|
1834 | /* interpolate in the meantime */ |
1252 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1835 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1253 | { |
1836 | { |
1254 | ev_rt_now = rtmn_diff + mn_now; |
1837 | ev_rt_now = rtmn_diff + mn_now; |
1255 | return 0; |
1838 | return; |
1256 | } |
1839 | } |
1257 | else |
1840 | |
1258 | { |
|
|
1259 | now_floor = mn_now; |
1841 | now_floor = mn_now; |
1260 | ev_rt_now = ev_time (); |
1842 | ev_rt_now = ev_time (); |
1261 | return 1; |
|
|
1262 | } |
|
|
1263 | } |
|
|
1264 | |
1843 | |
1265 | void inline_size |
1844 | /* loop a few times, before making important decisions. |
1266 | time_update (EV_P) |
1845 | * on the choice of "4": one iteration isn't enough, |
1267 | { |
1846 | * in case we get preempted during the calls to |
1268 | int i; |
1847 | * ev_time and get_clock. a second call is almost guaranteed |
1269 | |
1848 | * to succeed in that case, though. and looping a few more times |
1270 | #if EV_USE_MONOTONIC |
1849 | * doesn't hurt either as we only do this on time-jumps or |
1271 | if (expect_true (have_monotonic)) |
1850 | * in the unlikely event of having been preempted here. |
1272 | { |
1851 | */ |
1273 | if (time_update_monotonic (EV_A)) |
1852 | for (i = 4; --i; ) |
1274 | { |
1853 | { |
1275 | ev_tstamp odiff = rtmn_diff; |
|
|
1276 | |
|
|
1277 | /* loop a few times, before making important decisions. |
|
|
1278 | * on the choice of "4": one iteration isn't enough, |
|
|
1279 | * in case we get preempted during the calls to |
|
|
1280 | * ev_time and get_clock. a second call is almost guaranteed |
|
|
1281 | * to succeed in that case, though. and looping a few more times |
|
|
1282 | * doesn't hurt either as we only do this on time-jumps or |
|
|
1283 | * in the unlikely event of having been preempted here. |
|
|
1284 | */ |
|
|
1285 | for (i = 4; --i; ) |
|
|
1286 | { |
|
|
1287 | rtmn_diff = ev_rt_now - mn_now; |
1854 | rtmn_diff = ev_rt_now - mn_now; |
1288 | |
1855 | |
1289 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1856 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
1290 | return; /* all is well */ |
1857 | return; /* all is well */ |
1291 | |
1858 | |
1292 | ev_rt_now = ev_time (); |
1859 | ev_rt_now = ev_time (); |
1293 | mn_now = get_clock (); |
1860 | mn_now = get_clock (); |
1294 | now_floor = mn_now; |
1861 | now_floor = mn_now; |
1295 | } |
1862 | } |
1296 | |
1863 | |
1297 | # if EV_PERIODIC_ENABLE |
1864 | # if EV_PERIODIC_ENABLE |
1298 | periodics_reschedule (EV_A); |
1865 | periodics_reschedule (EV_A); |
1299 | # endif |
1866 | # endif |
1300 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
1867 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
1301 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1868 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1302 | } |
|
|
1303 | } |
1869 | } |
1304 | else |
1870 | else |
1305 | #endif |
1871 | #endif |
1306 | { |
1872 | { |
1307 | ev_rt_now = ev_time (); |
1873 | ev_rt_now = ev_time (); |
1308 | |
1874 | |
1309 | if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
1875 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
1310 | { |
1876 | { |
1311 | #if EV_PERIODIC_ENABLE |
1877 | #if EV_PERIODIC_ENABLE |
1312 | periodics_reschedule (EV_A); |
1878 | periodics_reschedule (EV_A); |
1313 | #endif |
1879 | #endif |
1314 | |
|
|
1315 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
1880 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
1316 | for (i = 0; i < timercnt; ++i) |
1881 | for (i = 0; i < timercnt; ++i) |
|
|
1882 | { |
|
|
1883 | ANHE *he = timers + i + HEAP0; |
1317 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
1884 | ANHE_w (*he)->at += ev_rt_now - mn_now; |
|
|
1885 | ANHE_at_cache (*he); |
|
|
1886 | } |
1318 | } |
1887 | } |
1319 | |
1888 | |
1320 | mn_now = ev_rt_now; |
1889 | mn_now = ev_rt_now; |
1321 | } |
1890 | } |
1322 | } |
1891 | } |
… | |
… | |
1331 | ev_unref (EV_P) |
1900 | ev_unref (EV_P) |
1332 | { |
1901 | { |
1333 | --activecnt; |
1902 | --activecnt; |
1334 | } |
1903 | } |
1335 | |
1904 | |
|
|
1905 | void |
|
|
1906 | ev_now_update (EV_P) |
|
|
1907 | { |
|
|
1908 | time_update (EV_A_ 1e100); |
|
|
1909 | } |
|
|
1910 | |
1336 | static int loop_done; |
1911 | static int loop_done; |
1337 | |
1912 | |
1338 | void |
1913 | void |
1339 | ev_loop (EV_P_ int flags) |
1914 | ev_loop (EV_P_ int flags) |
1340 | { |
1915 | { |
1341 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) |
1916 | loop_done = EVUNLOOP_CANCEL; |
1342 | ? EVUNLOOP_ONE |
|
|
1343 | : EVUNLOOP_CANCEL; |
|
|
1344 | |
1917 | |
1345 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
1918 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
1346 | |
1919 | |
1347 | while (expect_false (!activecnt)) |
1920 | do |
1348 | { |
1921 | { |
|
|
1922 | #if EV_VERIFY >= 2 |
|
|
1923 | ev_loop_verify (EV_A); |
|
|
1924 | #endif |
|
|
1925 | |
1349 | #ifndef _WIN32 |
1926 | #ifndef _WIN32 |
1350 | if (expect_false (curpid)) /* penalise the forking check even more */ |
1927 | if (expect_false (curpid)) /* penalise the forking check even more */ |
1351 | if (expect_false (getpid () != curpid)) |
1928 | if (expect_false (getpid () != curpid)) |
1352 | { |
1929 | { |
1353 | curpid = getpid (); |
1930 | curpid = getpid (); |
… | |
… | |
1363 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
1940 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
1364 | call_pending (EV_A); |
1941 | call_pending (EV_A); |
1365 | } |
1942 | } |
1366 | #endif |
1943 | #endif |
1367 | |
1944 | |
1368 | /* queue check watchers (and execute them) */ |
1945 | /* queue prepare watchers (and execute them) */ |
1369 | if (expect_false (preparecnt)) |
1946 | if (expect_false (preparecnt)) |
1370 | { |
1947 | { |
1371 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1948 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1372 | call_pending (EV_A); |
1949 | call_pending (EV_A); |
1373 | } |
1950 | } |
… | |
… | |
1382 | /* update fd-related kernel structures */ |
1959 | /* update fd-related kernel structures */ |
1383 | fd_reify (EV_A); |
1960 | fd_reify (EV_A); |
1384 | |
1961 | |
1385 | /* calculate blocking time */ |
1962 | /* calculate blocking time */ |
1386 | { |
1963 | { |
1387 | ev_tstamp block; |
1964 | ev_tstamp waittime = 0.; |
|
|
1965 | ev_tstamp sleeptime = 0.; |
1388 | |
1966 | |
1389 | if (expect_false (flags & EVLOOP_NONBLOCK || idlecnt || !activecnt)) |
1967 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
1390 | block = 0.; /* do not block at all */ |
|
|
1391 | else |
|
|
1392 | { |
1968 | { |
1393 | /* update time to cancel out callback processing overhead */ |
1969 | /* update time to cancel out callback processing overhead */ |
1394 | #if EV_USE_MONOTONIC |
|
|
1395 | if (expect_true (have_monotonic)) |
|
|
1396 | time_update_monotonic (EV_A); |
1970 | time_update (EV_A_ 1e100); |
1397 | else |
|
|
1398 | #endif |
|
|
1399 | { |
|
|
1400 | ev_rt_now = ev_time (); |
|
|
1401 | mn_now = ev_rt_now; |
|
|
1402 | } |
|
|
1403 | |
1971 | |
1404 | block = MAX_BLOCKTIME; |
1972 | waittime = MAX_BLOCKTIME; |
1405 | |
1973 | |
1406 | if (timercnt) |
1974 | if (timercnt) |
1407 | { |
1975 | { |
1408 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
1976 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
1409 | if (block > to) block = to; |
1977 | if (waittime > to) waittime = to; |
1410 | } |
1978 | } |
1411 | |
1979 | |
1412 | #if EV_PERIODIC_ENABLE |
1980 | #if EV_PERIODIC_ENABLE |
1413 | if (periodiccnt) |
1981 | if (periodiccnt) |
1414 | { |
1982 | { |
1415 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
1983 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
1416 | if (block > to) block = to; |
1984 | if (waittime > to) waittime = to; |
1417 | } |
1985 | } |
1418 | #endif |
1986 | #endif |
1419 | |
1987 | |
1420 | if (expect_false (block < 0.)) block = 0.; |
1988 | if (expect_false (waittime < timeout_blocktime)) |
|
|
1989 | waittime = timeout_blocktime; |
|
|
1990 | |
|
|
1991 | sleeptime = waittime - backend_fudge; |
|
|
1992 | |
|
|
1993 | if (expect_true (sleeptime > io_blocktime)) |
|
|
1994 | sleeptime = io_blocktime; |
|
|
1995 | |
|
|
1996 | if (sleeptime) |
|
|
1997 | { |
|
|
1998 | ev_sleep (sleeptime); |
|
|
1999 | waittime -= sleeptime; |
|
|
2000 | } |
1421 | } |
2001 | } |
1422 | |
2002 | |
|
|
2003 | ++loop_count; |
1423 | backend_poll (EV_A_ block); |
2004 | backend_poll (EV_A_ waittime); |
|
|
2005 | |
|
|
2006 | /* update ev_rt_now, do magic */ |
|
|
2007 | time_update (EV_A_ waittime + sleeptime); |
1424 | } |
2008 | } |
1425 | |
|
|
1426 | /* update ev_rt_now, do magic */ |
|
|
1427 | time_update (EV_A); |
|
|
1428 | |
2009 | |
1429 | /* queue pending timers and reschedule them */ |
2010 | /* queue pending timers and reschedule them */ |
1430 | timers_reify (EV_A); /* relative timers called last */ |
2011 | timers_reify (EV_A); /* relative timers called last */ |
1431 | #if EV_PERIODIC_ENABLE |
2012 | #if EV_PERIODIC_ENABLE |
1432 | periodics_reify (EV_A); /* absolute timers called first */ |
2013 | periodics_reify (EV_A); /* absolute timers called first */ |
1433 | #endif |
2014 | #endif |
1434 | |
2015 | |
|
|
2016 | #if EV_IDLE_ENABLE |
1435 | /* queue idle watchers unless other events are pending */ |
2017 | /* queue idle watchers unless other events are pending */ |
1436 | if (idlecnt && !any_pending (EV_A)) |
2018 | idle_reify (EV_A); |
1437 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
2019 | #endif |
1438 | |
2020 | |
1439 | /* queue check watchers, to be executed first */ |
2021 | /* queue check watchers, to be executed first */ |
1440 | if (expect_false (checkcnt)) |
2022 | if (expect_false (checkcnt)) |
1441 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2023 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1442 | |
2024 | |
1443 | call_pending (EV_A); |
2025 | call_pending (EV_A); |
1444 | |
|
|
1445 | if (expect_false (loop_done)) |
|
|
1446 | break; |
|
|
1447 | } |
2026 | } |
|
|
2027 | while (expect_true ( |
|
|
2028 | activecnt |
|
|
2029 | && !loop_done |
|
|
2030 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
|
|
2031 | )); |
1448 | |
2032 | |
1449 | if (loop_done == EVUNLOOP_ONE) |
2033 | if (loop_done == EVUNLOOP_ONE) |
1450 | loop_done = EVUNLOOP_CANCEL; |
2034 | loop_done = EVUNLOOP_CANCEL; |
1451 | } |
2035 | } |
1452 | |
2036 | |
… | |
… | |
1479 | head = &(*head)->next; |
2063 | head = &(*head)->next; |
1480 | } |
2064 | } |
1481 | } |
2065 | } |
1482 | |
2066 | |
1483 | void inline_speed |
2067 | void inline_speed |
1484 | ev_clear_pending (EV_P_ W w) |
2068 | clear_pending (EV_P_ W w) |
1485 | { |
2069 | { |
1486 | if (w->pending) |
2070 | if (w->pending) |
1487 | { |
2071 | { |
1488 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
2072 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1489 | w->pending = 0; |
2073 | w->pending = 0; |
1490 | } |
2074 | } |
1491 | } |
2075 | } |
1492 | |
2076 | |
|
|
2077 | int |
|
|
2078 | ev_clear_pending (EV_P_ void *w) |
|
|
2079 | { |
|
|
2080 | W w_ = (W)w; |
|
|
2081 | int pending = w_->pending; |
|
|
2082 | |
|
|
2083 | if (expect_true (pending)) |
|
|
2084 | { |
|
|
2085 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
2086 | w_->pending = 0; |
|
|
2087 | p->w = 0; |
|
|
2088 | return p->events; |
|
|
2089 | } |
|
|
2090 | else |
|
|
2091 | return 0; |
|
|
2092 | } |
|
|
2093 | |
|
|
2094 | void inline_size |
|
|
2095 | pri_adjust (EV_P_ W w) |
|
|
2096 | { |
|
|
2097 | int pri = w->priority; |
|
|
2098 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
|
|
2099 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
|
|
2100 | w->priority = pri; |
|
|
2101 | } |
|
|
2102 | |
1493 | void inline_speed |
2103 | void inline_speed |
1494 | ev_start (EV_P_ W w, int active) |
2104 | ev_start (EV_P_ W w, int active) |
1495 | { |
2105 | { |
1496 | if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; |
2106 | pri_adjust (EV_A_ w); |
1497 | if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; |
|
|
1498 | |
|
|
1499 | w->active = active; |
2107 | w->active = active; |
1500 | ev_ref (EV_A); |
2108 | ev_ref (EV_A); |
1501 | } |
2109 | } |
1502 | |
2110 | |
1503 | void inline_size |
2111 | void inline_size |
… | |
… | |
1507 | w->active = 0; |
2115 | w->active = 0; |
1508 | } |
2116 | } |
1509 | |
2117 | |
1510 | /*****************************************************************************/ |
2118 | /*****************************************************************************/ |
1511 | |
2119 | |
1512 | void |
2120 | void noinline |
1513 | ev_io_start (EV_P_ ev_io *w) |
2121 | ev_io_start (EV_P_ ev_io *w) |
1514 | { |
2122 | { |
1515 | int fd = w->fd; |
2123 | int fd = w->fd; |
1516 | |
2124 | |
1517 | if (expect_false (ev_is_active (w))) |
2125 | if (expect_false (ev_is_active (w))) |
1518 | return; |
2126 | return; |
1519 | |
2127 | |
1520 | assert (("ev_io_start called with negative fd", fd >= 0)); |
2128 | assert (("ev_io_start called with negative fd", fd >= 0)); |
|
|
2129 | assert (("ev_io start called with illegal event mask", !(w->events & ~(EV_IOFDSET | EV_READ | EV_WRITE)))); |
|
|
2130 | |
|
|
2131 | EV_FREQUENT_CHECK; |
1521 | |
2132 | |
1522 | ev_start (EV_A_ (W)w, 1); |
2133 | ev_start (EV_A_ (W)w, 1); |
1523 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
2134 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
1524 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
2135 | wlist_add (&anfds[fd].head, (WL)w); |
1525 | |
2136 | |
1526 | fd_change (EV_A_ fd); |
2137 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
1527 | } |
2138 | w->events &= ~EV_IOFDSET; |
1528 | |
2139 | |
1529 | void |
2140 | EV_FREQUENT_CHECK; |
|
|
2141 | } |
|
|
2142 | |
|
|
2143 | void noinline |
1530 | ev_io_stop (EV_P_ ev_io *w) |
2144 | ev_io_stop (EV_P_ ev_io *w) |
1531 | { |
2145 | { |
1532 | ev_clear_pending (EV_A_ (W)w); |
2146 | clear_pending (EV_A_ (W)w); |
1533 | if (expect_false (!ev_is_active (w))) |
2147 | if (expect_false (!ev_is_active (w))) |
1534 | return; |
2148 | return; |
1535 | |
2149 | |
1536 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2150 | assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
1537 | |
2151 | |
|
|
2152 | EV_FREQUENT_CHECK; |
|
|
2153 | |
1538 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
2154 | wlist_del (&anfds[w->fd].head, (WL)w); |
1539 | ev_stop (EV_A_ (W)w); |
2155 | ev_stop (EV_A_ (W)w); |
1540 | |
2156 | |
1541 | fd_change (EV_A_ w->fd); |
2157 | fd_change (EV_A_ w->fd, 1); |
1542 | } |
|
|
1543 | |
2158 | |
1544 | void |
2159 | EV_FREQUENT_CHECK; |
|
|
2160 | } |
|
|
2161 | |
|
|
2162 | void noinline |
1545 | ev_timer_start (EV_P_ ev_timer *w) |
2163 | ev_timer_start (EV_P_ ev_timer *w) |
1546 | { |
2164 | { |
1547 | if (expect_false (ev_is_active (w))) |
2165 | if (expect_false (ev_is_active (w))) |
1548 | return; |
2166 | return; |
1549 | |
2167 | |
1550 | ((WT)w)->at += mn_now; |
2168 | ev_at (w) += mn_now; |
1551 | |
2169 | |
1552 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2170 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1553 | |
2171 | |
|
|
2172 | EV_FREQUENT_CHECK; |
|
|
2173 | |
|
|
2174 | ++timercnt; |
1554 | ev_start (EV_A_ (W)w, ++timercnt); |
2175 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
1555 | array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2); |
2176 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
1556 | timers [timercnt - 1] = w; |
2177 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
1557 | upheap ((WT *)timers, timercnt - 1); |
2178 | ANHE_at_cache (timers [ev_active (w)]); |
|
|
2179 | upheap (timers, ev_active (w)); |
1558 | |
2180 | |
|
|
2181 | EV_FREQUENT_CHECK; |
|
|
2182 | |
1559 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
2183 | /*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
1560 | } |
2184 | } |
1561 | |
2185 | |
1562 | void |
2186 | void noinline |
1563 | ev_timer_stop (EV_P_ ev_timer *w) |
2187 | ev_timer_stop (EV_P_ ev_timer *w) |
1564 | { |
2188 | { |
1565 | ev_clear_pending (EV_A_ (W)w); |
2189 | clear_pending (EV_A_ (W)w); |
1566 | if (expect_false (!ev_is_active (w))) |
2190 | if (expect_false (!ev_is_active (w))) |
1567 | return; |
2191 | return; |
1568 | |
2192 | |
1569 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
2193 | EV_FREQUENT_CHECK; |
1570 | |
2194 | |
1571 | { |
2195 | { |
1572 | int active = ((W)w)->active; |
2196 | int active = ev_active (w); |
1573 | |
2197 | |
|
|
2198 | assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
|
|
2199 | |
|
|
2200 | --timercnt; |
|
|
2201 | |
1574 | if (expect_true (--active < --timercnt)) |
2202 | if (expect_true (active < timercnt + HEAP0)) |
1575 | { |
2203 | { |
1576 | timers [active] = timers [timercnt]; |
2204 | timers [active] = timers [timercnt + HEAP0]; |
1577 | adjustheap ((WT *)timers, timercnt, active); |
2205 | adjustheap (timers, timercnt, active); |
1578 | } |
2206 | } |
1579 | } |
2207 | } |
1580 | |
2208 | |
1581 | ((WT)w)->at -= mn_now; |
2209 | EV_FREQUENT_CHECK; |
|
|
2210 | |
|
|
2211 | ev_at (w) -= mn_now; |
1582 | |
2212 | |
1583 | ev_stop (EV_A_ (W)w); |
2213 | ev_stop (EV_A_ (W)w); |
1584 | } |
2214 | } |
1585 | |
2215 | |
1586 | void |
2216 | void noinline |
1587 | ev_timer_again (EV_P_ ev_timer *w) |
2217 | ev_timer_again (EV_P_ ev_timer *w) |
1588 | { |
2218 | { |
|
|
2219 | EV_FREQUENT_CHECK; |
|
|
2220 | |
1589 | if (ev_is_active (w)) |
2221 | if (ev_is_active (w)) |
1590 | { |
2222 | { |
1591 | if (w->repeat) |
2223 | if (w->repeat) |
1592 | { |
2224 | { |
1593 | ((WT)w)->at = mn_now + w->repeat; |
2225 | ev_at (w) = mn_now + w->repeat; |
|
|
2226 | ANHE_at_cache (timers [ev_active (w)]); |
1594 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
2227 | adjustheap (timers, timercnt, ev_active (w)); |
1595 | } |
2228 | } |
1596 | else |
2229 | else |
1597 | ev_timer_stop (EV_A_ w); |
2230 | ev_timer_stop (EV_A_ w); |
1598 | } |
2231 | } |
1599 | else if (w->repeat) |
2232 | else if (w->repeat) |
1600 | { |
2233 | { |
1601 | w->at = w->repeat; |
2234 | ev_at (w) = w->repeat; |
1602 | ev_timer_start (EV_A_ w); |
2235 | ev_timer_start (EV_A_ w); |
1603 | } |
2236 | } |
|
|
2237 | |
|
|
2238 | EV_FREQUENT_CHECK; |
1604 | } |
2239 | } |
1605 | |
2240 | |
1606 | #if EV_PERIODIC_ENABLE |
2241 | #if EV_PERIODIC_ENABLE |
1607 | void |
2242 | void noinline |
1608 | ev_periodic_start (EV_P_ ev_periodic *w) |
2243 | ev_periodic_start (EV_P_ ev_periodic *w) |
1609 | { |
2244 | { |
1610 | if (expect_false (ev_is_active (w))) |
2245 | if (expect_false (ev_is_active (w))) |
1611 | return; |
2246 | return; |
1612 | |
2247 | |
1613 | if (w->reschedule_cb) |
2248 | if (w->reschedule_cb) |
1614 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
2249 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1615 | else if (w->interval) |
2250 | else if (w->interval) |
1616 | { |
2251 | { |
1617 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2252 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1618 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2253 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1619 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
2254 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1620 | } |
2255 | } |
|
|
2256 | else |
|
|
2257 | ev_at (w) = w->offset; |
1621 | |
2258 | |
|
|
2259 | EV_FREQUENT_CHECK; |
|
|
2260 | |
|
|
2261 | ++periodiccnt; |
1622 | ev_start (EV_A_ (W)w, ++periodiccnt); |
2262 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
1623 | array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); |
2263 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
1624 | periodics [periodiccnt - 1] = w; |
2264 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
1625 | upheap ((WT *)periodics, periodiccnt - 1); |
2265 | ANHE_at_cache (periodics [ev_active (w)]); |
|
|
2266 | upheap (periodics, ev_active (w)); |
1626 | |
2267 | |
|
|
2268 | EV_FREQUENT_CHECK; |
|
|
2269 | |
1627 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
2270 | /*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
1628 | } |
2271 | } |
1629 | |
2272 | |
1630 | void |
2273 | void noinline |
1631 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2274 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1632 | { |
2275 | { |
1633 | ev_clear_pending (EV_A_ (W)w); |
2276 | clear_pending (EV_A_ (W)w); |
1634 | if (expect_false (!ev_is_active (w))) |
2277 | if (expect_false (!ev_is_active (w))) |
1635 | return; |
2278 | return; |
1636 | |
2279 | |
1637 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
2280 | EV_FREQUENT_CHECK; |
1638 | |
2281 | |
1639 | { |
2282 | { |
1640 | int active = ((W)w)->active; |
2283 | int active = ev_active (w); |
1641 | |
2284 | |
|
|
2285 | assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
|
|
2286 | |
|
|
2287 | --periodiccnt; |
|
|
2288 | |
1642 | if (expect_true (--active < --periodiccnt)) |
2289 | if (expect_true (active < periodiccnt + HEAP0)) |
1643 | { |
2290 | { |
1644 | periodics [active] = periodics [periodiccnt]; |
2291 | periodics [active] = periodics [periodiccnt + HEAP0]; |
1645 | adjustheap ((WT *)periodics, periodiccnt, active); |
2292 | adjustheap (periodics, periodiccnt, active); |
1646 | } |
2293 | } |
1647 | } |
2294 | } |
1648 | |
2295 | |
|
|
2296 | EV_FREQUENT_CHECK; |
|
|
2297 | |
1649 | ev_stop (EV_A_ (W)w); |
2298 | ev_stop (EV_A_ (W)w); |
1650 | } |
2299 | } |
1651 | |
2300 | |
1652 | void |
2301 | void noinline |
1653 | ev_periodic_again (EV_P_ ev_periodic *w) |
2302 | ev_periodic_again (EV_P_ ev_periodic *w) |
1654 | { |
2303 | { |
1655 | /* TODO: use adjustheap and recalculation */ |
2304 | /* TODO: use adjustheap and recalculation */ |
1656 | ev_periodic_stop (EV_A_ w); |
2305 | ev_periodic_stop (EV_A_ w); |
1657 | ev_periodic_start (EV_A_ w); |
2306 | ev_periodic_start (EV_A_ w); |
… | |
… | |
1660 | |
2309 | |
1661 | #ifndef SA_RESTART |
2310 | #ifndef SA_RESTART |
1662 | # define SA_RESTART 0 |
2311 | # define SA_RESTART 0 |
1663 | #endif |
2312 | #endif |
1664 | |
2313 | |
1665 | void |
2314 | void noinline |
1666 | ev_signal_start (EV_P_ ev_signal *w) |
2315 | ev_signal_start (EV_P_ ev_signal *w) |
1667 | { |
2316 | { |
1668 | #if EV_MULTIPLICITY |
2317 | #if EV_MULTIPLICITY |
1669 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2318 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1670 | #endif |
2319 | #endif |
1671 | if (expect_false (ev_is_active (w))) |
2320 | if (expect_false (ev_is_active (w))) |
1672 | return; |
2321 | return; |
1673 | |
2322 | |
1674 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2323 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1675 | |
2324 | |
|
|
2325 | evpipe_init (EV_A); |
|
|
2326 | |
|
|
2327 | EV_FREQUENT_CHECK; |
|
|
2328 | |
|
|
2329 | { |
|
|
2330 | #ifndef _WIN32 |
|
|
2331 | sigset_t full, prev; |
|
|
2332 | sigfillset (&full); |
|
|
2333 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2334 | #endif |
|
|
2335 | |
|
|
2336 | array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); |
|
|
2337 | |
|
|
2338 | #ifndef _WIN32 |
|
|
2339 | sigprocmask (SIG_SETMASK, &prev, 0); |
|
|
2340 | #endif |
|
|
2341 | } |
|
|
2342 | |
1676 | ev_start (EV_A_ (W)w, 1); |
2343 | ev_start (EV_A_ (W)w, 1); |
1677 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
|
|
1678 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
2344 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
1679 | |
2345 | |
1680 | if (!((WL)w)->next) |
2346 | if (!((WL)w)->next) |
1681 | { |
2347 | { |
1682 | #if _WIN32 |
2348 | #if _WIN32 |
1683 | signal (w->signum, sighandler); |
2349 | signal (w->signum, ev_sighandler); |
1684 | #else |
2350 | #else |
1685 | struct sigaction sa; |
2351 | struct sigaction sa; |
1686 | sa.sa_handler = sighandler; |
2352 | sa.sa_handler = ev_sighandler; |
1687 | sigfillset (&sa.sa_mask); |
2353 | sigfillset (&sa.sa_mask); |
1688 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2354 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1689 | sigaction (w->signum, &sa, 0); |
2355 | sigaction (w->signum, &sa, 0); |
1690 | #endif |
2356 | #endif |
1691 | } |
2357 | } |
1692 | } |
|
|
1693 | |
2358 | |
1694 | void |
2359 | EV_FREQUENT_CHECK; |
|
|
2360 | } |
|
|
2361 | |
|
|
2362 | void noinline |
1695 | ev_signal_stop (EV_P_ ev_signal *w) |
2363 | ev_signal_stop (EV_P_ ev_signal *w) |
1696 | { |
2364 | { |
1697 | ev_clear_pending (EV_A_ (W)w); |
2365 | clear_pending (EV_A_ (W)w); |
1698 | if (expect_false (!ev_is_active (w))) |
2366 | if (expect_false (!ev_is_active (w))) |
1699 | return; |
2367 | return; |
1700 | |
2368 | |
|
|
2369 | EV_FREQUENT_CHECK; |
|
|
2370 | |
1701 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
2371 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
1702 | ev_stop (EV_A_ (W)w); |
2372 | ev_stop (EV_A_ (W)w); |
1703 | |
2373 | |
1704 | if (!signals [w->signum - 1].head) |
2374 | if (!signals [w->signum - 1].head) |
1705 | signal (w->signum, SIG_DFL); |
2375 | signal (w->signum, SIG_DFL); |
|
|
2376 | |
|
|
2377 | EV_FREQUENT_CHECK; |
1706 | } |
2378 | } |
1707 | |
2379 | |
1708 | void |
2380 | void |
1709 | ev_child_start (EV_P_ ev_child *w) |
2381 | ev_child_start (EV_P_ ev_child *w) |
1710 | { |
2382 | { |
… | |
… | |
1712 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2384 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1713 | #endif |
2385 | #endif |
1714 | if (expect_false (ev_is_active (w))) |
2386 | if (expect_false (ev_is_active (w))) |
1715 | return; |
2387 | return; |
1716 | |
2388 | |
|
|
2389 | EV_FREQUENT_CHECK; |
|
|
2390 | |
1717 | ev_start (EV_A_ (W)w, 1); |
2391 | ev_start (EV_A_ (W)w, 1); |
1718 | wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2392 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
|
|
2393 | |
|
|
2394 | EV_FREQUENT_CHECK; |
1719 | } |
2395 | } |
1720 | |
2396 | |
1721 | void |
2397 | void |
1722 | ev_child_stop (EV_P_ ev_child *w) |
2398 | ev_child_stop (EV_P_ ev_child *w) |
1723 | { |
2399 | { |
1724 | ev_clear_pending (EV_A_ (W)w); |
2400 | clear_pending (EV_A_ (W)w); |
1725 | if (expect_false (!ev_is_active (w))) |
2401 | if (expect_false (!ev_is_active (w))) |
1726 | return; |
2402 | return; |
1727 | |
2403 | |
|
|
2404 | EV_FREQUENT_CHECK; |
|
|
2405 | |
1728 | wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2406 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1729 | ev_stop (EV_A_ (W)w); |
2407 | ev_stop (EV_A_ (W)w); |
|
|
2408 | |
|
|
2409 | EV_FREQUENT_CHECK; |
1730 | } |
2410 | } |
1731 | |
2411 | |
1732 | #if EV_STAT_ENABLE |
2412 | #if EV_STAT_ENABLE |
1733 | |
2413 | |
1734 | # ifdef _WIN32 |
2414 | # ifdef _WIN32 |
… | |
… | |
1752 | if (w->wd < 0) |
2432 | if (w->wd < 0) |
1753 | { |
2433 | { |
1754 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2434 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
1755 | |
2435 | |
1756 | /* monitor some parent directory for speedup hints */ |
2436 | /* monitor some parent directory for speedup hints */ |
|
|
2437 | /* note that exceeding the hardcoded limit is not a correctness issue, */ |
|
|
2438 | /* but an efficiency issue only */ |
1757 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2439 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
1758 | { |
2440 | { |
1759 | char path [4096]; |
2441 | char path [4096]; |
1760 | strcpy (path, w->path); |
2442 | strcpy (path, w->path); |
1761 | |
2443 | |
… | |
… | |
1801 | |
2483 | |
1802 | static void noinline |
2484 | static void noinline |
1803 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2485 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
1804 | { |
2486 | { |
1805 | if (slot < 0) |
2487 | if (slot < 0) |
1806 | /* overflow, need to check for all hahs slots */ |
2488 | /* overflow, need to check for all hash slots */ |
1807 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2489 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
1808 | infy_wd (EV_A_ slot, wd, ev); |
2490 | infy_wd (EV_A_ slot, wd, ev); |
1809 | else |
2491 | else |
1810 | { |
2492 | { |
1811 | WL w_; |
2493 | WL w_; |
… | |
… | |
1845 | infy_init (EV_P) |
2527 | infy_init (EV_P) |
1846 | { |
2528 | { |
1847 | if (fs_fd != -2) |
2529 | if (fs_fd != -2) |
1848 | return; |
2530 | return; |
1849 | |
2531 | |
|
|
2532 | /* kernels < 2.6.25 are borked |
|
|
2533 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
|
|
2534 | */ |
|
|
2535 | { |
|
|
2536 | struct utsname buf; |
|
|
2537 | int major, minor, micro; |
|
|
2538 | |
|
|
2539 | fs_fd = -1; |
|
|
2540 | |
|
|
2541 | if (uname (&buf)) |
|
|
2542 | return; |
|
|
2543 | |
|
|
2544 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
|
|
2545 | return; |
|
|
2546 | |
|
|
2547 | if (major < 2 |
|
|
2548 | || (major == 2 && minor < 6) |
|
|
2549 | || (major == 2 && minor == 6 && micro < 25)) |
|
|
2550 | return; |
|
|
2551 | } |
|
|
2552 | |
1850 | fs_fd = inotify_init (); |
2553 | fs_fd = inotify_init (); |
1851 | |
2554 | |
1852 | if (fs_fd >= 0) |
2555 | if (fs_fd >= 0) |
1853 | { |
2556 | { |
1854 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
2557 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
… | |
… | |
1883 | if (fs_fd >= 0) |
2586 | if (fs_fd >= 0) |
1884 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2587 | infy_add (EV_A_ w); /* re-add, no matter what */ |
1885 | else |
2588 | else |
1886 | ev_timer_start (EV_A_ &w->timer); |
2589 | ev_timer_start (EV_A_ &w->timer); |
1887 | } |
2590 | } |
1888 | |
|
|
1889 | } |
2591 | } |
1890 | } |
2592 | } |
1891 | |
2593 | |
|
|
2594 | #endif |
|
|
2595 | |
|
|
2596 | #ifdef _WIN32 |
|
|
2597 | # define EV_LSTAT(p,b) _stati64 (p, b) |
|
|
2598 | #else |
|
|
2599 | # define EV_LSTAT(p,b) lstat (p, b) |
1892 | #endif |
2600 | #endif |
1893 | |
2601 | |
1894 | void |
2602 | void |
1895 | ev_stat_stat (EV_P_ ev_stat *w) |
2603 | ev_stat_stat (EV_P_ ev_stat *w) |
1896 | { |
2604 | { |
… | |
… | |
1923 | || w->prev.st_atime != w->attr.st_atime |
2631 | || w->prev.st_atime != w->attr.st_atime |
1924 | || w->prev.st_mtime != w->attr.st_mtime |
2632 | || w->prev.st_mtime != w->attr.st_mtime |
1925 | || w->prev.st_ctime != w->attr.st_ctime |
2633 | || w->prev.st_ctime != w->attr.st_ctime |
1926 | ) { |
2634 | ) { |
1927 | #if EV_USE_INOTIFY |
2635 | #if EV_USE_INOTIFY |
|
|
2636 | if (fs_fd >= 0) |
|
|
2637 | { |
1928 | infy_del (EV_A_ w); |
2638 | infy_del (EV_A_ w); |
1929 | infy_add (EV_A_ w); |
2639 | infy_add (EV_A_ w); |
1930 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
2640 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
2641 | } |
1931 | #endif |
2642 | #endif |
1932 | |
2643 | |
1933 | ev_feed_event (EV_A_ w, EV_STAT); |
2644 | ev_feed_event (EV_A_ w, EV_STAT); |
1934 | } |
2645 | } |
1935 | } |
2646 | } |
… | |
… | |
1960 | else |
2671 | else |
1961 | #endif |
2672 | #endif |
1962 | ev_timer_start (EV_A_ &w->timer); |
2673 | ev_timer_start (EV_A_ &w->timer); |
1963 | |
2674 | |
1964 | ev_start (EV_A_ (W)w, 1); |
2675 | ev_start (EV_A_ (W)w, 1); |
|
|
2676 | |
|
|
2677 | EV_FREQUENT_CHECK; |
1965 | } |
2678 | } |
1966 | |
2679 | |
1967 | void |
2680 | void |
1968 | ev_stat_stop (EV_P_ ev_stat *w) |
2681 | ev_stat_stop (EV_P_ ev_stat *w) |
1969 | { |
2682 | { |
1970 | ev_clear_pending (EV_A_ (W)w); |
2683 | clear_pending (EV_A_ (W)w); |
1971 | if (expect_false (!ev_is_active (w))) |
2684 | if (expect_false (!ev_is_active (w))) |
1972 | return; |
2685 | return; |
1973 | |
2686 | |
|
|
2687 | EV_FREQUENT_CHECK; |
|
|
2688 | |
1974 | #if EV_USE_INOTIFY |
2689 | #if EV_USE_INOTIFY |
1975 | infy_del (EV_A_ w); |
2690 | infy_del (EV_A_ w); |
1976 | #endif |
2691 | #endif |
1977 | ev_timer_stop (EV_A_ &w->timer); |
2692 | ev_timer_stop (EV_A_ &w->timer); |
1978 | |
2693 | |
1979 | ev_stop (EV_A_ (W)w); |
2694 | ev_stop (EV_A_ (W)w); |
1980 | } |
|
|
1981 | #endif |
|
|
1982 | |
2695 | |
|
|
2696 | EV_FREQUENT_CHECK; |
|
|
2697 | } |
|
|
2698 | #endif |
|
|
2699 | |
|
|
2700 | #if EV_IDLE_ENABLE |
1983 | void |
2701 | void |
1984 | ev_idle_start (EV_P_ ev_idle *w) |
2702 | ev_idle_start (EV_P_ ev_idle *w) |
1985 | { |
2703 | { |
1986 | if (expect_false (ev_is_active (w))) |
2704 | if (expect_false (ev_is_active (w))) |
1987 | return; |
2705 | return; |
1988 | |
2706 | |
|
|
2707 | pri_adjust (EV_A_ (W)w); |
|
|
2708 | |
|
|
2709 | EV_FREQUENT_CHECK; |
|
|
2710 | |
|
|
2711 | { |
|
|
2712 | int active = ++idlecnt [ABSPRI (w)]; |
|
|
2713 | |
|
|
2714 | ++idleall; |
1989 | ev_start (EV_A_ (W)w, ++idlecnt); |
2715 | ev_start (EV_A_ (W)w, active); |
|
|
2716 | |
1990 | array_needsize (ev_idle *, idles, idlemax, idlecnt, EMPTY2); |
2717 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
1991 | idles [idlecnt - 1] = w; |
2718 | idles [ABSPRI (w)][active - 1] = w; |
|
|
2719 | } |
|
|
2720 | |
|
|
2721 | EV_FREQUENT_CHECK; |
1992 | } |
2722 | } |
1993 | |
2723 | |
1994 | void |
2724 | void |
1995 | ev_idle_stop (EV_P_ ev_idle *w) |
2725 | ev_idle_stop (EV_P_ ev_idle *w) |
1996 | { |
2726 | { |
1997 | ev_clear_pending (EV_A_ (W)w); |
2727 | clear_pending (EV_A_ (W)w); |
1998 | if (expect_false (!ev_is_active (w))) |
2728 | if (expect_false (!ev_is_active (w))) |
1999 | return; |
2729 | return; |
2000 | |
2730 | |
|
|
2731 | EV_FREQUENT_CHECK; |
|
|
2732 | |
2001 | { |
2733 | { |
2002 | int active = ((W)w)->active; |
2734 | int active = ev_active (w); |
2003 | idles [active - 1] = idles [--idlecnt]; |
2735 | |
2004 | ((W)idles [active - 1])->active = active; |
2736 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
|
|
2737 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
|
|
2738 | |
|
|
2739 | ev_stop (EV_A_ (W)w); |
|
|
2740 | --idleall; |
2005 | } |
2741 | } |
2006 | |
2742 | |
2007 | ev_stop (EV_A_ (W)w); |
2743 | EV_FREQUENT_CHECK; |
2008 | } |
2744 | } |
|
|
2745 | #endif |
2009 | |
2746 | |
2010 | void |
2747 | void |
2011 | ev_prepare_start (EV_P_ ev_prepare *w) |
2748 | ev_prepare_start (EV_P_ ev_prepare *w) |
2012 | { |
2749 | { |
2013 | if (expect_false (ev_is_active (w))) |
2750 | if (expect_false (ev_is_active (w))) |
2014 | return; |
2751 | return; |
|
|
2752 | |
|
|
2753 | EV_FREQUENT_CHECK; |
2015 | |
2754 | |
2016 | ev_start (EV_A_ (W)w, ++preparecnt); |
2755 | ev_start (EV_A_ (W)w, ++preparecnt); |
2017 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
2756 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
2018 | prepares [preparecnt - 1] = w; |
2757 | prepares [preparecnt - 1] = w; |
|
|
2758 | |
|
|
2759 | EV_FREQUENT_CHECK; |
2019 | } |
2760 | } |
2020 | |
2761 | |
2021 | void |
2762 | void |
2022 | ev_prepare_stop (EV_P_ ev_prepare *w) |
2763 | ev_prepare_stop (EV_P_ ev_prepare *w) |
2023 | { |
2764 | { |
2024 | ev_clear_pending (EV_A_ (W)w); |
2765 | clear_pending (EV_A_ (W)w); |
2025 | if (expect_false (!ev_is_active (w))) |
2766 | if (expect_false (!ev_is_active (w))) |
2026 | return; |
2767 | return; |
2027 | |
2768 | |
|
|
2769 | EV_FREQUENT_CHECK; |
|
|
2770 | |
2028 | { |
2771 | { |
2029 | int active = ((W)w)->active; |
2772 | int active = ev_active (w); |
|
|
2773 | |
2030 | prepares [active - 1] = prepares [--preparecnt]; |
2774 | prepares [active - 1] = prepares [--preparecnt]; |
2031 | ((W)prepares [active - 1])->active = active; |
2775 | ev_active (prepares [active - 1]) = active; |
2032 | } |
2776 | } |
2033 | |
2777 | |
2034 | ev_stop (EV_A_ (W)w); |
2778 | ev_stop (EV_A_ (W)w); |
|
|
2779 | |
|
|
2780 | EV_FREQUENT_CHECK; |
2035 | } |
2781 | } |
2036 | |
2782 | |
2037 | void |
2783 | void |
2038 | ev_check_start (EV_P_ ev_check *w) |
2784 | ev_check_start (EV_P_ ev_check *w) |
2039 | { |
2785 | { |
2040 | if (expect_false (ev_is_active (w))) |
2786 | if (expect_false (ev_is_active (w))) |
2041 | return; |
2787 | return; |
|
|
2788 | |
|
|
2789 | EV_FREQUENT_CHECK; |
2042 | |
2790 | |
2043 | ev_start (EV_A_ (W)w, ++checkcnt); |
2791 | ev_start (EV_A_ (W)w, ++checkcnt); |
2044 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
2792 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
2045 | checks [checkcnt - 1] = w; |
2793 | checks [checkcnt - 1] = w; |
|
|
2794 | |
|
|
2795 | EV_FREQUENT_CHECK; |
2046 | } |
2796 | } |
2047 | |
2797 | |
2048 | void |
2798 | void |
2049 | ev_check_stop (EV_P_ ev_check *w) |
2799 | ev_check_stop (EV_P_ ev_check *w) |
2050 | { |
2800 | { |
2051 | ev_clear_pending (EV_A_ (W)w); |
2801 | clear_pending (EV_A_ (W)w); |
2052 | if (expect_false (!ev_is_active (w))) |
2802 | if (expect_false (!ev_is_active (w))) |
2053 | return; |
2803 | return; |
2054 | |
2804 | |
|
|
2805 | EV_FREQUENT_CHECK; |
|
|
2806 | |
2055 | { |
2807 | { |
2056 | int active = ((W)w)->active; |
2808 | int active = ev_active (w); |
|
|
2809 | |
2057 | checks [active - 1] = checks [--checkcnt]; |
2810 | checks [active - 1] = checks [--checkcnt]; |
2058 | ((W)checks [active - 1])->active = active; |
2811 | ev_active (checks [active - 1]) = active; |
2059 | } |
2812 | } |
2060 | |
2813 | |
2061 | ev_stop (EV_A_ (W)w); |
2814 | ev_stop (EV_A_ (W)w); |
|
|
2815 | |
|
|
2816 | EV_FREQUENT_CHECK; |
2062 | } |
2817 | } |
2063 | |
2818 | |
2064 | #if EV_EMBED_ENABLE |
2819 | #if EV_EMBED_ENABLE |
2065 | void noinline |
2820 | void noinline |
2066 | ev_embed_sweep (EV_P_ ev_embed *w) |
2821 | ev_embed_sweep (EV_P_ ev_embed *w) |
2067 | { |
2822 | { |
2068 | ev_loop (w->loop, EVLOOP_NONBLOCK); |
2823 | ev_loop (w->other, EVLOOP_NONBLOCK); |
2069 | } |
2824 | } |
2070 | |
2825 | |
2071 | static void |
2826 | static void |
2072 | embed_cb (EV_P_ ev_io *io, int revents) |
2827 | embed_io_cb (EV_P_ ev_io *io, int revents) |
2073 | { |
2828 | { |
2074 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
2829 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
2075 | |
2830 | |
2076 | if (ev_cb (w)) |
2831 | if (ev_cb (w)) |
2077 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2832 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2078 | else |
2833 | else |
2079 | ev_embed_sweep (loop, w); |
2834 | ev_loop (w->other, EVLOOP_NONBLOCK); |
2080 | } |
2835 | } |
|
|
2836 | |
|
|
2837 | static void |
|
|
2838 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
|
|
2839 | { |
|
|
2840 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
|
|
2841 | |
|
|
2842 | { |
|
|
2843 | struct ev_loop *loop = w->other; |
|
|
2844 | |
|
|
2845 | while (fdchangecnt) |
|
|
2846 | { |
|
|
2847 | fd_reify (EV_A); |
|
|
2848 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
2849 | } |
|
|
2850 | } |
|
|
2851 | } |
|
|
2852 | |
|
|
2853 | static void |
|
|
2854 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
|
|
2855 | { |
|
|
2856 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
|
|
2857 | |
|
|
2858 | { |
|
|
2859 | struct ev_loop *loop = w->other; |
|
|
2860 | |
|
|
2861 | ev_loop_fork (EV_A); |
|
|
2862 | } |
|
|
2863 | } |
|
|
2864 | |
|
|
2865 | #if 0 |
|
|
2866 | static void |
|
|
2867 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
|
|
2868 | { |
|
|
2869 | ev_idle_stop (EV_A_ idle); |
|
|
2870 | } |
|
|
2871 | #endif |
2081 | |
2872 | |
2082 | void |
2873 | void |
2083 | ev_embed_start (EV_P_ ev_embed *w) |
2874 | ev_embed_start (EV_P_ ev_embed *w) |
2084 | { |
2875 | { |
2085 | if (expect_false (ev_is_active (w))) |
2876 | if (expect_false (ev_is_active (w))) |
2086 | return; |
2877 | return; |
2087 | |
2878 | |
2088 | { |
2879 | { |
2089 | struct ev_loop *loop = w->loop; |
2880 | struct ev_loop *loop = w->other; |
2090 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2881 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2091 | ev_io_init (&w->io, embed_cb, backend_fd, EV_READ); |
2882 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2092 | } |
2883 | } |
|
|
2884 | |
|
|
2885 | EV_FREQUENT_CHECK; |
2093 | |
2886 | |
2094 | ev_set_priority (&w->io, ev_priority (w)); |
2887 | ev_set_priority (&w->io, ev_priority (w)); |
2095 | ev_io_start (EV_A_ &w->io); |
2888 | ev_io_start (EV_A_ &w->io); |
2096 | |
2889 | |
|
|
2890 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
|
|
2891 | ev_set_priority (&w->prepare, EV_MINPRI); |
|
|
2892 | ev_prepare_start (EV_A_ &w->prepare); |
|
|
2893 | |
|
|
2894 | ev_fork_init (&w->fork, embed_fork_cb); |
|
|
2895 | ev_fork_start (EV_A_ &w->fork); |
|
|
2896 | |
|
|
2897 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
|
|
2898 | |
2097 | ev_start (EV_A_ (W)w, 1); |
2899 | ev_start (EV_A_ (W)w, 1); |
|
|
2900 | |
|
|
2901 | EV_FREQUENT_CHECK; |
2098 | } |
2902 | } |
2099 | |
2903 | |
2100 | void |
2904 | void |
2101 | ev_embed_stop (EV_P_ ev_embed *w) |
2905 | ev_embed_stop (EV_P_ ev_embed *w) |
2102 | { |
2906 | { |
2103 | ev_clear_pending (EV_A_ (W)w); |
2907 | clear_pending (EV_A_ (W)w); |
2104 | if (expect_false (!ev_is_active (w))) |
2908 | if (expect_false (!ev_is_active (w))) |
2105 | return; |
2909 | return; |
2106 | |
2910 | |
|
|
2911 | EV_FREQUENT_CHECK; |
|
|
2912 | |
2107 | ev_io_stop (EV_A_ &w->io); |
2913 | ev_io_stop (EV_A_ &w->io); |
|
|
2914 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
2915 | ev_fork_stop (EV_A_ &w->fork); |
2108 | |
2916 | |
2109 | ev_stop (EV_A_ (W)w); |
2917 | EV_FREQUENT_CHECK; |
2110 | } |
2918 | } |
2111 | #endif |
2919 | #endif |
2112 | |
2920 | |
2113 | #if EV_FORK_ENABLE |
2921 | #if EV_FORK_ENABLE |
2114 | void |
2922 | void |
2115 | ev_fork_start (EV_P_ ev_fork *w) |
2923 | ev_fork_start (EV_P_ ev_fork *w) |
2116 | { |
2924 | { |
2117 | if (expect_false (ev_is_active (w))) |
2925 | if (expect_false (ev_is_active (w))) |
2118 | return; |
2926 | return; |
|
|
2927 | |
|
|
2928 | EV_FREQUENT_CHECK; |
2119 | |
2929 | |
2120 | ev_start (EV_A_ (W)w, ++forkcnt); |
2930 | ev_start (EV_A_ (W)w, ++forkcnt); |
2121 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
2931 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
2122 | forks [forkcnt - 1] = w; |
2932 | forks [forkcnt - 1] = w; |
|
|
2933 | |
|
|
2934 | EV_FREQUENT_CHECK; |
2123 | } |
2935 | } |
2124 | |
2936 | |
2125 | void |
2937 | void |
2126 | ev_fork_stop (EV_P_ ev_fork *w) |
2938 | ev_fork_stop (EV_P_ ev_fork *w) |
2127 | { |
2939 | { |
2128 | ev_clear_pending (EV_A_ (W)w); |
2940 | clear_pending (EV_A_ (W)w); |
2129 | if (expect_false (!ev_is_active (w))) |
2941 | if (expect_false (!ev_is_active (w))) |
2130 | return; |
2942 | return; |
2131 | |
2943 | |
|
|
2944 | EV_FREQUENT_CHECK; |
|
|
2945 | |
2132 | { |
2946 | { |
2133 | int active = ((W)w)->active; |
2947 | int active = ev_active (w); |
|
|
2948 | |
2134 | forks [active - 1] = forks [--forkcnt]; |
2949 | forks [active - 1] = forks [--forkcnt]; |
2135 | ((W)forks [active - 1])->active = active; |
2950 | ev_active (forks [active - 1]) = active; |
2136 | } |
2951 | } |
2137 | |
2952 | |
2138 | ev_stop (EV_A_ (W)w); |
2953 | ev_stop (EV_A_ (W)w); |
|
|
2954 | |
|
|
2955 | EV_FREQUENT_CHECK; |
|
|
2956 | } |
|
|
2957 | #endif |
|
|
2958 | |
|
|
2959 | #if EV_ASYNC_ENABLE |
|
|
2960 | void |
|
|
2961 | ev_async_start (EV_P_ ev_async *w) |
|
|
2962 | { |
|
|
2963 | if (expect_false (ev_is_active (w))) |
|
|
2964 | return; |
|
|
2965 | |
|
|
2966 | evpipe_init (EV_A); |
|
|
2967 | |
|
|
2968 | EV_FREQUENT_CHECK; |
|
|
2969 | |
|
|
2970 | ev_start (EV_A_ (W)w, ++asynccnt); |
|
|
2971 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
|
|
2972 | asyncs [asynccnt - 1] = w; |
|
|
2973 | |
|
|
2974 | EV_FREQUENT_CHECK; |
|
|
2975 | } |
|
|
2976 | |
|
|
2977 | void |
|
|
2978 | ev_async_stop (EV_P_ ev_async *w) |
|
|
2979 | { |
|
|
2980 | clear_pending (EV_A_ (W)w); |
|
|
2981 | if (expect_false (!ev_is_active (w))) |
|
|
2982 | return; |
|
|
2983 | |
|
|
2984 | EV_FREQUENT_CHECK; |
|
|
2985 | |
|
|
2986 | { |
|
|
2987 | int active = ev_active (w); |
|
|
2988 | |
|
|
2989 | asyncs [active - 1] = asyncs [--asynccnt]; |
|
|
2990 | ev_active (asyncs [active - 1]) = active; |
|
|
2991 | } |
|
|
2992 | |
|
|
2993 | ev_stop (EV_A_ (W)w); |
|
|
2994 | |
|
|
2995 | EV_FREQUENT_CHECK; |
|
|
2996 | } |
|
|
2997 | |
|
|
2998 | void |
|
|
2999 | ev_async_send (EV_P_ ev_async *w) |
|
|
3000 | { |
|
|
3001 | w->sent = 1; |
|
|
3002 | evpipe_write (EV_A_ &gotasync); |
2139 | } |
3003 | } |
2140 | #endif |
3004 | #endif |
2141 | |
3005 | |
2142 | /*****************************************************************************/ |
3006 | /*****************************************************************************/ |
2143 | |
3007 | |
… | |
… | |
2153 | once_cb (EV_P_ struct ev_once *once, int revents) |
3017 | once_cb (EV_P_ struct ev_once *once, int revents) |
2154 | { |
3018 | { |
2155 | void (*cb)(int revents, void *arg) = once->cb; |
3019 | void (*cb)(int revents, void *arg) = once->cb; |
2156 | void *arg = once->arg; |
3020 | void *arg = once->arg; |
2157 | |
3021 | |
2158 | ev_io_stop (EV_A_ &once->io); |
3022 | ev_io_stop (EV_A_ &once->io); |
2159 | ev_timer_stop (EV_A_ &once->to); |
3023 | ev_timer_stop (EV_A_ &once->to); |
2160 | ev_free (once); |
3024 | ev_free (once); |
2161 | |
3025 | |
2162 | cb (revents, arg); |
3026 | cb (revents, arg); |
2163 | } |
3027 | } |
2164 | |
3028 | |
2165 | static void |
3029 | static void |
2166 | once_cb_io (EV_P_ ev_io *w, int revents) |
3030 | once_cb_io (EV_P_ ev_io *w, int revents) |
2167 | { |
3031 | { |
2168 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
3032 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)); |
|
|
3033 | |
|
|
3034 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to)); |
2169 | } |
3035 | } |
2170 | |
3036 | |
2171 | static void |
3037 | static void |
2172 | once_cb_to (EV_P_ ev_timer *w, int revents) |
3038 | once_cb_to (EV_P_ ev_timer *w, int revents) |
2173 | { |
3039 | { |
2174 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
3040 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)); |
|
|
3041 | |
|
|
3042 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
2175 | } |
3043 | } |
2176 | |
3044 | |
2177 | void |
3045 | void |
2178 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
3046 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
2179 | { |
3047 | { |
… | |
… | |
2201 | ev_timer_set (&once->to, timeout, 0.); |
3069 | ev_timer_set (&once->to, timeout, 0.); |
2202 | ev_timer_start (EV_A_ &once->to); |
3070 | ev_timer_start (EV_A_ &once->to); |
2203 | } |
3071 | } |
2204 | } |
3072 | } |
2205 | |
3073 | |
|
|
3074 | #if EV_MULTIPLICITY |
|
|
3075 | #include "ev_wrap.h" |
|
|
3076 | #endif |
|
|
3077 | |
2206 | #ifdef __cplusplus |
3078 | #ifdef __cplusplus |
2207 | } |
3079 | } |
2208 | #endif |
3080 | #endif |
2209 | |
3081 | |