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/statfs.h> |
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293 | # include <sys/inotify.h> |
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294 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
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295 | # ifndef IN_DONT_FOLLOW |
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296 | # undef EV_USE_INOTIFY |
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297 | # define EV_USE_INOTIFY 0 |
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298 | # endif |
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299 | #endif |
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300 | |
207 | #if EV_SELECT_IS_WINSOCKET |
301 | #if EV_SELECT_IS_WINSOCKET |
208 | # include <winsock.h> |
302 | # include <winsock.h> |
209 | #endif |
303 | #endif |
210 | |
304 | |
211 | #if !EV_STAT_ENABLE |
305 | #if EV_USE_EVENTFD |
212 | # define EV_USE_INOTIFY 0 |
306 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
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307 | # include <stdint.h> |
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308 | # ifdef __cplusplus |
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309 | extern "C" { |
213 | #endif |
310 | # endif |
214 | |
311 | int eventfd (unsigned int initval, int flags); |
215 | #if EV_USE_INOTIFY |
312 | # ifdef __cplusplus |
216 | # include <sys/inotify.h> |
313 | } |
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314 | # endif |
217 | #endif |
315 | #endif |
218 | |
316 | |
219 | /**/ |
317 | /**/ |
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318 | |
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319 | #if EV_VERIFY >= 3 |
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320 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
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321 | #else |
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322 | # define EV_FREQUENT_CHECK do { } while (0) |
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323 | #endif |
220 | |
324 | |
221 | /* |
325 | /* |
222 | * This is used to avoid floating point rounding problems. |
326 | * This is used to avoid floating point rounding problems. |
223 | * It is added to ev_rt_now when scheduling periodics |
327 | * It is added to ev_rt_now when scheduling periodics |
224 | * to ensure progress, time-wise, even when rounding |
328 | * to ensure progress, time-wise, even when rounding |
… | |
… | |
230 | |
334 | |
231 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
335 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
232 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
336 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
233 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
337 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
234 | |
338 | |
235 | #if __GNUC__ >= 3 |
339 | #if __GNUC__ >= 4 |
236 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
340 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
237 | # define noinline __attribute__ ((noinline)) |
341 | # define noinline __attribute__ ((noinline)) |
238 | #else |
342 | #else |
239 | # define expect(expr,value) (expr) |
343 | # define expect(expr,value) (expr) |
240 | # define noinline |
344 | # define noinline |
241 | # if __STDC_VERSION__ < 199901L |
345 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
242 | # define inline |
346 | # define inline |
243 | # endif |
347 | # endif |
244 | #endif |
348 | #endif |
245 | |
349 | |
246 | #define expect_false(expr) expect ((expr) != 0, 0) |
350 | #define expect_false(expr) expect ((expr) != 0, 0) |
… | |
… | |
261 | |
365 | |
262 | typedef ev_watcher *W; |
366 | typedef ev_watcher *W; |
263 | typedef ev_watcher_list *WL; |
367 | typedef ev_watcher_list *WL; |
264 | typedef ev_watcher_time *WT; |
368 | typedef ev_watcher_time *WT; |
265 | |
369 | |
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370 | #define ev_active(w) ((W)(w))->active |
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371 | #define ev_at(w) ((WT)(w))->at |
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372 | |
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373 | #if EV_USE_MONOTONIC |
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374 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
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375 | /* giving it a reasonably high chance of working on typical architetcures */ |
266 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
376 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
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377 | #endif |
267 | |
378 | |
268 | #ifdef _WIN32 |
379 | #ifdef _WIN32 |
269 | # include "ev_win32.c" |
380 | # include "ev_win32.c" |
270 | #endif |
381 | #endif |
271 | |
382 | |
… | |
… | |
278 | { |
389 | { |
279 | syserr_cb = cb; |
390 | syserr_cb = cb; |
280 | } |
391 | } |
281 | |
392 | |
282 | static void noinline |
393 | static void noinline |
283 | syserr (const char *msg) |
394 | ev_syserr (const char *msg) |
284 | { |
395 | { |
285 | if (!msg) |
396 | if (!msg) |
286 | msg = "(libev) system error"; |
397 | msg = "(libev) system error"; |
287 | |
398 | |
288 | if (syserr_cb) |
399 | if (syserr_cb) |
… | |
… | |
292 | perror (msg); |
403 | perror (msg); |
293 | abort (); |
404 | abort (); |
294 | } |
405 | } |
295 | } |
406 | } |
296 | |
407 | |
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408 | static void * |
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409 | ev_realloc_emul (void *ptr, long size) |
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410 | { |
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411 | /* some systems, notably openbsd and darwin, fail to properly |
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412 | * implement realloc (x, 0) (as required by both ansi c-98 and |
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413 | * the single unix specification, so work around them here. |
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414 | */ |
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415 | |
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416 | if (size) |
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417 | return realloc (ptr, size); |
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418 | |
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419 | free (ptr); |
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420 | return 0; |
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421 | } |
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422 | |
297 | static void *(*alloc)(void *ptr, long size); |
423 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
298 | |
424 | |
299 | void |
425 | void |
300 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
426 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
301 | { |
427 | { |
302 | alloc = cb; |
428 | alloc = cb; |
303 | } |
429 | } |
304 | |
430 | |
305 | inline_speed void * |
431 | inline_speed void * |
306 | ev_realloc (void *ptr, long size) |
432 | ev_realloc (void *ptr, long size) |
307 | { |
433 | { |
308 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
434 | ptr = alloc (ptr, size); |
309 | |
435 | |
310 | if (!ptr && size) |
436 | if (!ptr && size) |
311 | { |
437 | { |
312 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
438 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
313 | abort (); |
439 | abort (); |
… | |
… | |
324 | typedef struct |
450 | typedef struct |
325 | { |
451 | { |
326 | WL head; |
452 | WL head; |
327 | unsigned char events; |
453 | unsigned char events; |
328 | unsigned char reify; |
454 | unsigned char reify; |
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455 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
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456 | unsigned char unused; |
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457 | #if EV_USE_EPOLL |
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458 | unsigned int egen; /* generation counter to counter epoll bugs */ |
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459 | #endif |
329 | #if EV_SELECT_IS_WINSOCKET |
460 | #if EV_SELECT_IS_WINSOCKET |
330 | SOCKET handle; |
461 | SOCKET handle; |
331 | #endif |
462 | #endif |
332 | } ANFD; |
463 | } ANFD; |
333 | |
464 | |
… | |
… | |
336 | W w; |
467 | W w; |
337 | int events; |
468 | int events; |
338 | } ANPENDING; |
469 | } ANPENDING; |
339 | |
470 | |
340 | #if EV_USE_INOTIFY |
471 | #if EV_USE_INOTIFY |
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472 | /* hash table entry per inotify-id */ |
341 | typedef struct |
473 | typedef struct |
342 | { |
474 | { |
343 | WL head; |
475 | WL head; |
344 | } ANFS; |
476 | } ANFS; |
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477 | #endif |
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478 | |
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479 | /* Heap Entry */ |
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480 | #if EV_HEAP_CACHE_AT |
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481 | typedef struct { |
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482 | ev_tstamp at; |
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483 | WT w; |
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484 | } ANHE; |
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485 | |
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486 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
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487 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
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488 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
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489 | #else |
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490 | typedef WT ANHE; |
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491 | |
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492 | #define ANHE_w(he) (he) |
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493 | #define ANHE_at(he) (he)->at |
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494 | #define ANHE_at_cache(he) |
345 | #endif |
495 | #endif |
346 | |
496 | |
347 | #if EV_MULTIPLICITY |
497 | #if EV_MULTIPLICITY |
348 | |
498 | |
349 | struct ev_loop |
499 | struct ev_loop |
… | |
… | |
407 | { |
557 | { |
408 | return ev_rt_now; |
558 | return ev_rt_now; |
409 | } |
559 | } |
410 | #endif |
560 | #endif |
411 | |
561 | |
|
|
562 | void |
|
|
563 | ev_sleep (ev_tstamp delay) |
|
|
564 | { |
|
|
565 | if (delay > 0.) |
|
|
566 | { |
|
|
567 | #if EV_USE_NANOSLEEP |
|
|
568 | struct timespec ts; |
|
|
569 | |
|
|
570 | ts.tv_sec = (time_t)delay; |
|
|
571 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
572 | |
|
|
573 | nanosleep (&ts, 0); |
|
|
574 | #elif defined(_WIN32) |
|
|
575 | Sleep ((unsigned long)(delay * 1e3)); |
|
|
576 | #else |
|
|
577 | struct timeval tv; |
|
|
578 | |
|
|
579 | tv.tv_sec = (time_t)delay; |
|
|
580 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
|
|
581 | |
|
|
582 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
|
|
583 | /* somehting nto guaranteed by newer posix versions, but guaranteed */ |
|
|
584 | /* by older ones */ |
|
|
585 | select (0, 0, 0, 0, &tv); |
|
|
586 | #endif |
|
|
587 | } |
|
|
588 | } |
|
|
589 | |
|
|
590 | /*****************************************************************************/ |
|
|
591 | |
|
|
592 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
|
|
593 | |
412 | int inline_size |
594 | int inline_size |
413 | array_nextsize (int elem, int cur, int cnt) |
595 | array_nextsize (int elem, int cur, int cnt) |
414 | { |
596 | { |
415 | int ncur = cur + 1; |
597 | int ncur = cur + 1; |
416 | |
598 | |
417 | do |
599 | do |
418 | ncur <<= 1; |
600 | ncur <<= 1; |
419 | while (cnt > ncur); |
601 | while (cnt > ncur); |
420 | |
602 | |
421 | /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */ |
603 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
422 | if (elem * ncur > 4096) |
604 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
423 | { |
605 | { |
424 | ncur *= elem; |
606 | ncur *= elem; |
425 | ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095; |
607 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
426 | ncur = ncur - sizeof (void *) * 4; |
608 | ncur = ncur - sizeof (void *) * 4; |
427 | ncur /= elem; |
609 | ncur /= elem; |
428 | } |
610 | } |
429 | |
611 | |
430 | return ncur; |
612 | return ncur; |
… | |
… | |
434 | array_realloc (int elem, void *base, int *cur, int cnt) |
616 | array_realloc (int elem, void *base, int *cur, int cnt) |
435 | { |
617 | { |
436 | *cur = array_nextsize (elem, *cur, cnt); |
618 | *cur = array_nextsize (elem, *cur, cnt); |
437 | return ev_realloc (base, elem * *cur); |
619 | return ev_realloc (base, elem * *cur); |
438 | } |
620 | } |
|
|
621 | |
|
|
622 | #define array_init_zero(base,count) \ |
|
|
623 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
439 | |
624 | |
440 | #define array_needsize(type,base,cur,cnt,init) \ |
625 | #define array_needsize(type,base,cur,cnt,init) \ |
441 | if (expect_false ((cnt) > (cur))) \ |
626 | if (expect_false ((cnt) > (cur))) \ |
442 | { \ |
627 | { \ |
443 | int ocur_ = (cur); \ |
628 | int ocur_ = (cur); \ |
… | |
… | |
487 | ev_feed_event (EV_A_ events [i], type); |
672 | ev_feed_event (EV_A_ events [i], type); |
488 | } |
673 | } |
489 | |
674 | |
490 | /*****************************************************************************/ |
675 | /*****************************************************************************/ |
491 | |
676 | |
492 | void inline_size |
|
|
493 | anfds_init (ANFD *base, int count) |
|
|
494 | { |
|
|
495 | while (count--) |
|
|
496 | { |
|
|
497 | base->head = 0; |
|
|
498 | base->events = EV_NONE; |
|
|
499 | base->reify = 0; |
|
|
500 | |
|
|
501 | ++base; |
|
|
502 | } |
|
|
503 | } |
|
|
504 | |
|
|
505 | void inline_speed |
677 | void inline_speed |
506 | fd_event (EV_P_ int fd, int revents) |
678 | fd_event (EV_P_ int fd, int revents) |
507 | { |
679 | { |
508 | ANFD *anfd = anfds + fd; |
680 | ANFD *anfd = anfds + fd; |
509 | ev_io *w; |
681 | ev_io *w; |
… | |
… | |
533 | { |
705 | { |
534 | int fd = fdchanges [i]; |
706 | int fd = fdchanges [i]; |
535 | ANFD *anfd = anfds + fd; |
707 | ANFD *anfd = anfds + fd; |
536 | ev_io *w; |
708 | ev_io *w; |
537 | |
709 | |
538 | int events = 0; |
710 | unsigned char events = 0; |
539 | |
711 | |
540 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
712 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
541 | events |= w->events; |
713 | events |= (unsigned char)w->events; |
542 | |
714 | |
543 | #if EV_SELECT_IS_WINSOCKET |
715 | #if EV_SELECT_IS_WINSOCKET |
544 | if (events) |
716 | if (events) |
545 | { |
717 | { |
546 | unsigned long argp; |
718 | unsigned long arg; |
|
|
719 | #ifdef EV_FD_TO_WIN32_HANDLE |
|
|
720 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
721 | #else |
547 | anfd->handle = _get_osfhandle (fd); |
722 | anfd->handle = _get_osfhandle (fd); |
|
|
723 | #endif |
548 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
724 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
549 | } |
725 | } |
550 | #endif |
726 | #endif |
551 | |
727 | |
|
|
728 | { |
|
|
729 | unsigned char o_events = anfd->events; |
|
|
730 | unsigned char o_reify = anfd->reify; |
|
|
731 | |
552 | anfd->reify = 0; |
732 | anfd->reify = 0; |
553 | |
|
|
554 | backend_modify (EV_A_ fd, anfd->events, events); |
|
|
555 | anfd->events = events; |
733 | anfd->events = events; |
|
|
734 | |
|
|
735 | if (o_events != events || o_reify & EV_IOFDSET) |
|
|
736 | backend_modify (EV_A_ fd, o_events, events); |
|
|
737 | } |
556 | } |
738 | } |
557 | |
739 | |
558 | fdchangecnt = 0; |
740 | fdchangecnt = 0; |
559 | } |
741 | } |
560 | |
742 | |
561 | void inline_size |
743 | void inline_size |
562 | fd_change (EV_P_ int fd) |
744 | fd_change (EV_P_ int fd, int flags) |
563 | { |
745 | { |
564 | if (expect_false (anfds [fd].reify)) |
746 | unsigned char reify = anfds [fd].reify; |
565 | return; |
|
|
566 | |
|
|
567 | anfds [fd].reify = 1; |
747 | anfds [fd].reify |= flags; |
568 | |
748 | |
|
|
749 | if (expect_true (!reify)) |
|
|
750 | { |
569 | ++fdchangecnt; |
751 | ++fdchangecnt; |
570 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
752 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
571 | fdchanges [fdchangecnt - 1] = fd; |
753 | fdchanges [fdchangecnt - 1] = fd; |
|
|
754 | } |
572 | } |
755 | } |
573 | |
756 | |
574 | void inline_speed |
757 | void inline_speed |
575 | fd_kill (EV_P_ int fd) |
758 | fd_kill (EV_P_ int fd) |
576 | { |
759 | { |
… | |
… | |
599 | { |
782 | { |
600 | int fd; |
783 | int fd; |
601 | |
784 | |
602 | for (fd = 0; fd < anfdmax; ++fd) |
785 | for (fd = 0; fd < anfdmax; ++fd) |
603 | if (anfds [fd].events) |
786 | if (anfds [fd].events) |
604 | if (!fd_valid (fd) == -1 && errno == EBADF) |
787 | if (!fd_valid (fd) && errno == EBADF) |
605 | fd_kill (EV_A_ fd); |
788 | fd_kill (EV_A_ fd); |
606 | } |
789 | } |
607 | |
790 | |
608 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
791 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
609 | static void noinline |
792 | static void noinline |
… | |
… | |
627 | |
810 | |
628 | for (fd = 0; fd < anfdmax; ++fd) |
811 | for (fd = 0; fd < anfdmax; ++fd) |
629 | if (anfds [fd].events) |
812 | if (anfds [fd].events) |
630 | { |
813 | { |
631 | anfds [fd].events = 0; |
814 | anfds [fd].events = 0; |
|
|
815 | anfds [fd].emask = 0; |
632 | fd_change (EV_A_ fd); |
816 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
633 | } |
817 | } |
634 | } |
818 | } |
635 | |
819 | |
636 | /*****************************************************************************/ |
820 | /*****************************************************************************/ |
637 | |
821 | |
|
|
822 | /* |
|
|
823 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
|
|
824 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
|
|
825 | * the branching factor of the d-tree. |
|
|
826 | */ |
|
|
827 | |
|
|
828 | /* |
|
|
829 | * at the moment we allow libev the luxury of two heaps, |
|
|
830 | * a small-code-size 2-heap one and a ~1.5kb larger 4-heap |
|
|
831 | * which is more cache-efficient. |
|
|
832 | * the difference is about 5% with 50000+ watchers. |
|
|
833 | */ |
|
|
834 | #if EV_USE_4HEAP |
|
|
835 | |
|
|
836 | #define DHEAP 4 |
|
|
837 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
|
|
838 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
|
|
839 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
|
|
840 | |
|
|
841 | /* away from the root */ |
638 | void inline_speed |
842 | void inline_speed |
639 | upheap (WT *heap, int k) |
843 | downheap (ANHE *heap, int N, int k) |
640 | { |
844 | { |
641 | WT w = heap [k]; |
845 | ANHE he = heap [k]; |
|
|
846 | ANHE *E = heap + N + HEAP0; |
642 | |
847 | |
643 | while (k) |
848 | for (;;) |
644 | { |
849 | { |
645 | int p = (k - 1) >> 1; |
850 | ev_tstamp minat; |
|
|
851 | ANHE *minpos; |
|
|
852 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
646 | |
853 | |
647 | if (heap [p]->at <= w->at) |
854 | /* find minimum child */ |
|
|
855 | if (expect_true (pos + DHEAP - 1 < E)) |
|
|
856 | { |
|
|
857 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
858 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
859 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
860 | if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
861 | } |
|
|
862 | else if (pos < E) |
|
|
863 | { |
|
|
864 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
865 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
866 | if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
867 | if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
868 | } |
|
|
869 | else |
648 | break; |
870 | break; |
649 | |
871 | |
|
|
872 | if (ANHE_at (he) <= minat) |
|
|
873 | break; |
|
|
874 | |
|
|
875 | heap [k] = *minpos; |
|
|
876 | ev_active (ANHE_w (*minpos)) = k; |
|
|
877 | |
|
|
878 | k = minpos - heap; |
|
|
879 | } |
|
|
880 | |
|
|
881 | heap [k] = he; |
|
|
882 | ev_active (ANHE_w (he)) = k; |
|
|
883 | } |
|
|
884 | |
|
|
885 | #else /* 4HEAP */ |
|
|
886 | |
|
|
887 | #define HEAP0 1 |
|
|
888 | #define HPARENT(k) ((k) >> 1) |
|
|
889 | #define UPHEAP_DONE(p,k) (!(p)) |
|
|
890 | |
|
|
891 | /* away from the root */ |
|
|
892 | void inline_speed |
|
|
893 | downheap (ANHE *heap, int N, int k) |
|
|
894 | { |
|
|
895 | ANHE he = heap [k]; |
|
|
896 | |
|
|
897 | for (;;) |
|
|
898 | { |
|
|
899 | int c = k << 1; |
|
|
900 | |
|
|
901 | if (c > N + HEAP0 - 1) |
|
|
902 | break; |
|
|
903 | |
|
|
904 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
|
|
905 | ? 1 : 0; |
|
|
906 | |
|
|
907 | if (ANHE_at (he) <= ANHE_at (heap [c])) |
|
|
908 | break; |
|
|
909 | |
|
|
910 | heap [k] = heap [c]; |
|
|
911 | ev_active (ANHE_w (heap [k])) = k; |
|
|
912 | |
|
|
913 | k = c; |
|
|
914 | } |
|
|
915 | |
|
|
916 | heap [k] = he; |
|
|
917 | ev_active (ANHE_w (he)) = k; |
|
|
918 | } |
|
|
919 | #endif |
|
|
920 | |
|
|
921 | /* towards the root */ |
|
|
922 | void inline_speed |
|
|
923 | upheap (ANHE *heap, int k) |
|
|
924 | { |
|
|
925 | ANHE he = heap [k]; |
|
|
926 | |
|
|
927 | for (;;) |
|
|
928 | { |
|
|
929 | int p = HPARENT (k); |
|
|
930 | |
|
|
931 | if (UPHEAP_DONE (p, k) || ANHE_at (heap [p]) <= ANHE_at (he)) |
|
|
932 | break; |
|
|
933 | |
650 | heap [k] = heap [p]; |
934 | heap [k] = heap [p]; |
651 | ((W)heap [k])->active = k + 1; |
935 | ev_active (ANHE_w (heap [k])) = k; |
652 | k = p; |
936 | k = p; |
653 | } |
937 | } |
654 | |
938 | |
655 | heap [k] = w; |
939 | heap [k] = he; |
656 | ((W)heap [k])->active = k + 1; |
940 | ev_active (ANHE_w (he)) = k; |
657 | } |
|
|
658 | |
|
|
659 | void inline_speed |
|
|
660 | downheap (WT *heap, int N, int k) |
|
|
661 | { |
|
|
662 | WT w = heap [k]; |
|
|
663 | |
|
|
664 | for (;;) |
|
|
665 | { |
|
|
666 | int c = (k << 1) + 1; |
|
|
667 | |
|
|
668 | if (c >= N) |
|
|
669 | break; |
|
|
670 | |
|
|
671 | c += c + 1 < N && heap [c]->at > heap [c + 1]->at |
|
|
672 | ? 1 : 0; |
|
|
673 | |
|
|
674 | if (w->at <= heap [c]->at) |
|
|
675 | break; |
|
|
676 | |
|
|
677 | heap [k] = heap [c]; |
|
|
678 | ((W)heap [k])->active = k + 1; |
|
|
679 | |
|
|
680 | k = c; |
|
|
681 | } |
|
|
682 | |
|
|
683 | heap [k] = w; |
|
|
684 | ((W)heap [k])->active = k + 1; |
|
|
685 | } |
941 | } |
686 | |
942 | |
687 | void inline_size |
943 | void inline_size |
688 | adjustheap (WT *heap, int N, int k) |
944 | adjustheap (ANHE *heap, int N, int k) |
689 | { |
945 | { |
|
|
946 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
690 | upheap (heap, k); |
947 | upheap (heap, k); |
|
|
948 | else |
691 | downheap (heap, N, k); |
949 | downheap (heap, N, k); |
|
|
950 | } |
|
|
951 | |
|
|
952 | /* rebuild the heap: this function is used only once and executed rarely */ |
|
|
953 | void inline_size |
|
|
954 | reheap (ANHE *heap, int N) |
|
|
955 | { |
|
|
956 | int i; |
|
|
957 | |
|
|
958 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
|
|
959 | /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */ |
|
|
960 | for (i = 0; i < N; ++i) |
|
|
961 | upheap (heap, i + HEAP0); |
692 | } |
962 | } |
693 | |
963 | |
694 | /*****************************************************************************/ |
964 | /*****************************************************************************/ |
695 | |
965 | |
696 | typedef struct |
966 | typedef struct |
697 | { |
967 | { |
698 | WL head; |
968 | WL head; |
699 | sig_atomic_t volatile gotsig; |
969 | EV_ATOMIC_T gotsig; |
700 | } ANSIG; |
970 | } ANSIG; |
701 | |
971 | |
702 | static ANSIG *signals; |
972 | static ANSIG *signals; |
703 | static int signalmax; |
973 | static int signalmax; |
704 | |
974 | |
705 | static int sigpipe [2]; |
975 | static EV_ATOMIC_T gotsig; |
706 | static sig_atomic_t volatile gotsig; |
|
|
707 | static ev_io sigev; |
|
|
708 | |
976 | |
709 | void inline_size |
977 | /*****************************************************************************/ |
710 | signals_init (ANSIG *base, int count) |
|
|
711 | { |
|
|
712 | while (count--) |
|
|
713 | { |
|
|
714 | base->head = 0; |
|
|
715 | base->gotsig = 0; |
|
|
716 | |
|
|
717 | ++base; |
|
|
718 | } |
|
|
719 | } |
|
|
720 | |
|
|
721 | static void |
|
|
722 | sighandler (int signum) |
|
|
723 | { |
|
|
724 | #if _WIN32 |
|
|
725 | signal (signum, sighandler); |
|
|
726 | #endif |
|
|
727 | |
|
|
728 | signals [signum - 1].gotsig = 1; |
|
|
729 | |
|
|
730 | if (!gotsig) |
|
|
731 | { |
|
|
732 | int old_errno = errno; |
|
|
733 | gotsig = 1; |
|
|
734 | write (sigpipe [1], &signum, 1); |
|
|
735 | errno = old_errno; |
|
|
736 | } |
|
|
737 | } |
|
|
738 | |
|
|
739 | void noinline |
|
|
740 | ev_feed_signal_event (EV_P_ int signum) |
|
|
741 | { |
|
|
742 | WL w; |
|
|
743 | |
|
|
744 | #if EV_MULTIPLICITY |
|
|
745 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
746 | #endif |
|
|
747 | |
|
|
748 | --signum; |
|
|
749 | |
|
|
750 | if (signum < 0 || signum >= signalmax) |
|
|
751 | return; |
|
|
752 | |
|
|
753 | signals [signum].gotsig = 0; |
|
|
754 | |
|
|
755 | for (w = signals [signum].head; w; w = w->next) |
|
|
756 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
757 | } |
|
|
758 | |
|
|
759 | static void |
|
|
760 | sigcb (EV_P_ ev_io *iow, int revents) |
|
|
761 | { |
|
|
762 | int signum; |
|
|
763 | |
|
|
764 | read (sigpipe [0], &revents, 1); |
|
|
765 | gotsig = 0; |
|
|
766 | |
|
|
767 | for (signum = signalmax; signum--; ) |
|
|
768 | if (signals [signum].gotsig) |
|
|
769 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
770 | } |
|
|
771 | |
978 | |
772 | void inline_speed |
979 | void inline_speed |
773 | fd_intern (int fd) |
980 | fd_intern (int fd) |
774 | { |
981 | { |
775 | #ifdef _WIN32 |
982 | #ifdef _WIN32 |
776 | int arg = 1; |
983 | unsigned long arg = 1; |
777 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
984 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
778 | #else |
985 | #else |
779 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
986 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
780 | fcntl (fd, F_SETFL, O_NONBLOCK); |
987 | fcntl (fd, F_SETFL, O_NONBLOCK); |
781 | #endif |
988 | #endif |
782 | } |
989 | } |
783 | |
990 | |
784 | static void noinline |
991 | static void noinline |
785 | siginit (EV_P) |
992 | evpipe_init (EV_P) |
786 | { |
993 | { |
|
|
994 | if (!ev_is_active (&pipeev)) |
|
|
995 | { |
|
|
996 | #if EV_USE_EVENTFD |
|
|
997 | if ((evfd = eventfd (0, 0)) >= 0) |
|
|
998 | { |
|
|
999 | evpipe [0] = -1; |
|
|
1000 | fd_intern (evfd); |
|
|
1001 | ev_io_set (&pipeev, evfd, EV_READ); |
|
|
1002 | } |
|
|
1003 | else |
|
|
1004 | #endif |
|
|
1005 | { |
|
|
1006 | while (pipe (evpipe)) |
|
|
1007 | ev_syserr ("(libev) error creating signal/async pipe"); |
|
|
1008 | |
787 | fd_intern (sigpipe [0]); |
1009 | fd_intern (evpipe [0]); |
788 | fd_intern (sigpipe [1]); |
1010 | fd_intern (evpipe [1]); |
|
|
1011 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
|
|
1012 | } |
789 | |
1013 | |
790 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
|
|
791 | ev_io_start (EV_A_ &sigev); |
1014 | ev_io_start (EV_A_ &pipeev); |
792 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1015 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
1016 | } |
|
|
1017 | } |
|
|
1018 | |
|
|
1019 | void inline_size |
|
|
1020 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1021 | { |
|
|
1022 | if (!*flag) |
|
|
1023 | { |
|
|
1024 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1025 | |
|
|
1026 | *flag = 1; |
|
|
1027 | |
|
|
1028 | #if EV_USE_EVENTFD |
|
|
1029 | if (evfd >= 0) |
|
|
1030 | { |
|
|
1031 | uint64_t counter = 1; |
|
|
1032 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
1033 | } |
|
|
1034 | else |
|
|
1035 | #endif |
|
|
1036 | write (evpipe [1], &old_errno, 1); |
|
|
1037 | |
|
|
1038 | errno = old_errno; |
|
|
1039 | } |
|
|
1040 | } |
|
|
1041 | |
|
|
1042 | static void |
|
|
1043 | pipecb (EV_P_ ev_io *iow, int revents) |
|
|
1044 | { |
|
|
1045 | #if EV_USE_EVENTFD |
|
|
1046 | if (evfd >= 0) |
|
|
1047 | { |
|
|
1048 | uint64_t counter; |
|
|
1049 | read (evfd, &counter, sizeof (uint64_t)); |
|
|
1050 | } |
|
|
1051 | else |
|
|
1052 | #endif |
|
|
1053 | { |
|
|
1054 | char dummy; |
|
|
1055 | read (evpipe [0], &dummy, 1); |
|
|
1056 | } |
|
|
1057 | |
|
|
1058 | if (gotsig && ev_is_default_loop (EV_A)) |
|
|
1059 | { |
|
|
1060 | int signum; |
|
|
1061 | gotsig = 0; |
|
|
1062 | |
|
|
1063 | for (signum = signalmax; signum--; ) |
|
|
1064 | if (signals [signum].gotsig) |
|
|
1065 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
1066 | } |
|
|
1067 | |
|
|
1068 | #if EV_ASYNC_ENABLE |
|
|
1069 | if (gotasync) |
|
|
1070 | { |
|
|
1071 | int i; |
|
|
1072 | gotasync = 0; |
|
|
1073 | |
|
|
1074 | for (i = asynccnt; i--; ) |
|
|
1075 | if (asyncs [i]->sent) |
|
|
1076 | { |
|
|
1077 | asyncs [i]->sent = 0; |
|
|
1078 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
|
|
1079 | } |
|
|
1080 | } |
|
|
1081 | #endif |
793 | } |
1082 | } |
794 | |
1083 | |
795 | /*****************************************************************************/ |
1084 | /*****************************************************************************/ |
796 | |
1085 | |
|
|
1086 | static void |
|
|
1087 | ev_sighandler (int signum) |
|
|
1088 | { |
|
|
1089 | #if EV_MULTIPLICITY |
|
|
1090 | struct ev_loop *loop = &default_loop_struct; |
|
|
1091 | #endif |
|
|
1092 | |
|
|
1093 | #if _WIN32 |
|
|
1094 | signal (signum, ev_sighandler); |
|
|
1095 | #endif |
|
|
1096 | |
|
|
1097 | signals [signum - 1].gotsig = 1; |
|
|
1098 | evpipe_write (EV_A_ &gotsig); |
|
|
1099 | } |
|
|
1100 | |
|
|
1101 | void noinline |
|
|
1102 | ev_feed_signal_event (EV_P_ int signum) |
|
|
1103 | { |
|
|
1104 | WL w; |
|
|
1105 | |
|
|
1106 | #if EV_MULTIPLICITY |
|
|
1107 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1108 | #endif |
|
|
1109 | |
|
|
1110 | --signum; |
|
|
1111 | |
|
|
1112 | if (signum < 0 || signum >= signalmax) |
|
|
1113 | return; |
|
|
1114 | |
|
|
1115 | signals [signum].gotsig = 0; |
|
|
1116 | |
|
|
1117 | for (w = signals [signum].head; w; w = w->next) |
|
|
1118 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
1119 | } |
|
|
1120 | |
|
|
1121 | /*****************************************************************************/ |
|
|
1122 | |
797 | static WL childs [EV_PID_HASHSIZE]; |
1123 | static WL childs [EV_PID_HASHSIZE]; |
798 | |
1124 | |
799 | #ifndef _WIN32 |
1125 | #ifndef _WIN32 |
800 | |
1126 | |
801 | static ev_signal childev; |
1127 | static ev_signal childev; |
802 | |
1128 | |
|
|
1129 | #ifndef WIFCONTINUED |
|
|
1130 | # define WIFCONTINUED(status) 0 |
|
|
1131 | #endif |
|
|
1132 | |
803 | void inline_speed |
1133 | void inline_speed |
804 | child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) |
1134 | child_reap (EV_P_ int chain, int pid, int status) |
805 | { |
1135 | { |
806 | ev_child *w; |
1136 | ev_child *w; |
|
|
1137 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
807 | |
1138 | |
808 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1139 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1140 | { |
809 | if (w->pid == pid || !w->pid) |
1141 | if ((w->pid == pid || !w->pid) |
|
|
1142 | && (!traced || (w->flags & 1))) |
810 | { |
1143 | { |
811 | ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */ |
1144 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
812 | w->rpid = pid; |
1145 | w->rpid = pid; |
813 | w->rstatus = status; |
1146 | w->rstatus = status; |
814 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
1147 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
815 | } |
1148 | } |
|
|
1149 | } |
816 | } |
1150 | } |
817 | |
1151 | |
818 | #ifndef WCONTINUED |
1152 | #ifndef WCONTINUED |
819 | # define WCONTINUED 0 |
1153 | # define WCONTINUED 0 |
820 | #endif |
1154 | #endif |
… | |
… | |
829 | if (!WCONTINUED |
1163 | if (!WCONTINUED |
830 | || errno != EINVAL |
1164 | || errno != EINVAL |
831 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
1165 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
832 | return; |
1166 | return; |
833 | |
1167 | |
834 | /* make sure we are called again until all childs have been reaped */ |
1168 | /* make sure we are called again until all children have been reaped */ |
835 | /* we need to do it this way so that the callback gets called before we continue */ |
1169 | /* we need to do it this way so that the callback gets called before we continue */ |
836 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1170 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
837 | |
1171 | |
838 | child_reap (EV_A_ sw, pid, pid, status); |
1172 | child_reap (EV_A_ pid, pid, status); |
839 | if (EV_PID_HASHSIZE > 1) |
1173 | if (EV_PID_HASHSIZE > 1) |
840 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1174 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
841 | } |
1175 | } |
842 | |
1176 | |
843 | #endif |
1177 | #endif |
844 | |
1178 | |
845 | /*****************************************************************************/ |
1179 | /*****************************************************************************/ |
… | |
… | |
917 | } |
1251 | } |
918 | |
1252 | |
919 | unsigned int |
1253 | unsigned int |
920 | ev_embeddable_backends (void) |
1254 | ev_embeddable_backends (void) |
921 | { |
1255 | { |
922 | return EVBACKEND_EPOLL |
1256 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
923 | | EVBACKEND_KQUEUE |
1257 | |
924 | | EVBACKEND_PORT; |
1258 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
|
|
1259 | /* please fix it and tell me how to detect the fix */ |
|
|
1260 | flags &= ~EVBACKEND_EPOLL; |
|
|
1261 | |
|
|
1262 | return flags; |
925 | } |
1263 | } |
926 | |
1264 | |
927 | unsigned int |
1265 | unsigned int |
928 | ev_backend (EV_P) |
1266 | ev_backend (EV_P) |
929 | { |
1267 | { |
… | |
… | |
932 | |
1270 | |
933 | unsigned int |
1271 | unsigned int |
934 | ev_loop_count (EV_P) |
1272 | ev_loop_count (EV_P) |
935 | { |
1273 | { |
936 | return loop_count; |
1274 | return loop_count; |
|
|
1275 | } |
|
|
1276 | |
|
|
1277 | void |
|
|
1278 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1279 | { |
|
|
1280 | io_blocktime = interval; |
|
|
1281 | } |
|
|
1282 | |
|
|
1283 | void |
|
|
1284 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1285 | { |
|
|
1286 | timeout_blocktime = interval; |
937 | } |
1287 | } |
938 | |
1288 | |
939 | static void noinline |
1289 | static void noinline |
940 | loop_init (EV_P_ unsigned int flags) |
1290 | loop_init (EV_P_ unsigned int flags) |
941 | { |
1291 | { |
… | |
… | |
947 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1297 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
948 | have_monotonic = 1; |
1298 | have_monotonic = 1; |
949 | } |
1299 | } |
950 | #endif |
1300 | #endif |
951 | |
1301 | |
952 | ev_rt_now = ev_time (); |
1302 | ev_rt_now = ev_time (); |
953 | mn_now = get_clock (); |
1303 | mn_now = get_clock (); |
954 | now_floor = mn_now; |
1304 | now_floor = mn_now; |
955 | rtmn_diff = ev_rt_now - mn_now; |
1305 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1306 | |
|
|
1307 | io_blocktime = 0.; |
|
|
1308 | timeout_blocktime = 0.; |
|
|
1309 | backend = 0; |
|
|
1310 | backend_fd = -1; |
|
|
1311 | gotasync = 0; |
|
|
1312 | #if EV_USE_INOTIFY |
|
|
1313 | fs_fd = -2; |
|
|
1314 | #endif |
956 | |
1315 | |
957 | /* pid check not overridable via env */ |
1316 | /* pid check not overridable via env */ |
958 | #ifndef _WIN32 |
1317 | #ifndef _WIN32 |
959 | if (flags & EVFLAG_FORKCHECK) |
1318 | if (flags & EVFLAG_FORKCHECK) |
960 | curpid = getpid (); |
1319 | curpid = getpid (); |
… | |
… | |
963 | if (!(flags & EVFLAG_NOENV) |
1322 | if (!(flags & EVFLAG_NOENV) |
964 | && !enable_secure () |
1323 | && !enable_secure () |
965 | && getenv ("LIBEV_FLAGS")) |
1324 | && getenv ("LIBEV_FLAGS")) |
966 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1325 | flags = atoi (getenv ("LIBEV_FLAGS")); |
967 | |
1326 | |
968 | if (!(flags & 0x0000ffffUL)) |
1327 | if (!(flags & 0x0000ffffU)) |
969 | flags |= ev_recommended_backends (); |
1328 | flags |= ev_recommended_backends (); |
970 | |
|
|
971 | backend = 0; |
|
|
972 | backend_fd = -1; |
|
|
973 | #if EV_USE_INOTIFY |
|
|
974 | fs_fd = -2; |
|
|
975 | #endif |
|
|
976 | |
1329 | |
977 | #if EV_USE_PORT |
1330 | #if EV_USE_PORT |
978 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1331 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
979 | #endif |
1332 | #endif |
980 | #if EV_USE_KQUEUE |
1333 | #if EV_USE_KQUEUE |
… | |
… | |
988 | #endif |
1341 | #endif |
989 | #if EV_USE_SELECT |
1342 | #if EV_USE_SELECT |
990 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1343 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
991 | #endif |
1344 | #endif |
992 | |
1345 | |
993 | ev_init (&sigev, sigcb); |
1346 | ev_init (&pipeev, pipecb); |
994 | ev_set_priority (&sigev, EV_MAXPRI); |
1347 | ev_set_priority (&pipeev, EV_MAXPRI); |
995 | } |
1348 | } |
996 | } |
1349 | } |
997 | |
1350 | |
998 | static void noinline |
1351 | static void noinline |
999 | loop_destroy (EV_P) |
1352 | loop_destroy (EV_P) |
1000 | { |
1353 | { |
1001 | int i; |
1354 | int i; |
|
|
1355 | |
|
|
1356 | if (ev_is_active (&pipeev)) |
|
|
1357 | { |
|
|
1358 | ev_ref (EV_A); /* signal watcher */ |
|
|
1359 | ev_io_stop (EV_A_ &pipeev); |
|
|
1360 | |
|
|
1361 | #if EV_USE_EVENTFD |
|
|
1362 | if (evfd >= 0) |
|
|
1363 | close (evfd); |
|
|
1364 | #endif |
|
|
1365 | |
|
|
1366 | if (evpipe [0] >= 0) |
|
|
1367 | { |
|
|
1368 | close (evpipe [0]); |
|
|
1369 | close (evpipe [1]); |
|
|
1370 | } |
|
|
1371 | } |
1002 | |
1372 | |
1003 | #if EV_USE_INOTIFY |
1373 | #if EV_USE_INOTIFY |
1004 | if (fs_fd >= 0) |
1374 | if (fs_fd >= 0) |
1005 | close (fs_fd); |
1375 | close (fs_fd); |
1006 | #endif |
1376 | #endif |
… | |
… | |
1029 | array_free (pending, [i]); |
1399 | array_free (pending, [i]); |
1030 | #if EV_IDLE_ENABLE |
1400 | #if EV_IDLE_ENABLE |
1031 | array_free (idle, [i]); |
1401 | array_free (idle, [i]); |
1032 | #endif |
1402 | #endif |
1033 | } |
1403 | } |
|
|
1404 | |
|
|
1405 | ev_free (anfds); anfdmax = 0; |
1034 | |
1406 | |
1035 | /* have to use the microsoft-never-gets-it-right macro */ |
1407 | /* have to use the microsoft-never-gets-it-right macro */ |
1036 | array_free (fdchange, EMPTY); |
1408 | array_free (fdchange, EMPTY); |
1037 | array_free (timer, EMPTY); |
1409 | array_free (timer, EMPTY); |
1038 | #if EV_PERIODIC_ENABLE |
1410 | #if EV_PERIODIC_ENABLE |
1039 | array_free (periodic, EMPTY); |
1411 | array_free (periodic, EMPTY); |
1040 | #endif |
1412 | #endif |
|
|
1413 | #if EV_FORK_ENABLE |
|
|
1414 | array_free (fork, EMPTY); |
|
|
1415 | #endif |
1041 | array_free (prepare, EMPTY); |
1416 | array_free (prepare, EMPTY); |
1042 | array_free (check, EMPTY); |
1417 | array_free (check, EMPTY); |
|
|
1418 | #if EV_ASYNC_ENABLE |
|
|
1419 | array_free (async, EMPTY); |
|
|
1420 | #endif |
1043 | |
1421 | |
1044 | backend = 0; |
1422 | backend = 0; |
1045 | } |
1423 | } |
1046 | |
1424 | |
|
|
1425 | #if EV_USE_INOTIFY |
1047 | void inline_size infy_fork (EV_P); |
1426 | void inline_size infy_fork (EV_P); |
|
|
1427 | #endif |
1048 | |
1428 | |
1049 | void inline_size |
1429 | void inline_size |
1050 | loop_fork (EV_P) |
1430 | loop_fork (EV_P) |
1051 | { |
1431 | { |
1052 | #if EV_USE_PORT |
1432 | #if EV_USE_PORT |
… | |
… | |
1060 | #endif |
1440 | #endif |
1061 | #if EV_USE_INOTIFY |
1441 | #if EV_USE_INOTIFY |
1062 | infy_fork (EV_A); |
1442 | infy_fork (EV_A); |
1063 | #endif |
1443 | #endif |
1064 | |
1444 | |
1065 | if (ev_is_active (&sigev)) |
1445 | if (ev_is_active (&pipeev)) |
1066 | { |
1446 | { |
1067 | /* default loop */ |
1447 | /* this "locks" the handlers against writing to the pipe */ |
|
|
1448 | /* while we modify the fd vars */ |
|
|
1449 | gotsig = 1; |
|
|
1450 | #if EV_ASYNC_ENABLE |
|
|
1451 | gotasync = 1; |
|
|
1452 | #endif |
1068 | |
1453 | |
1069 | ev_ref (EV_A); |
1454 | ev_ref (EV_A); |
1070 | ev_io_stop (EV_A_ &sigev); |
1455 | ev_io_stop (EV_A_ &pipeev); |
|
|
1456 | |
|
|
1457 | #if EV_USE_EVENTFD |
|
|
1458 | if (evfd >= 0) |
|
|
1459 | close (evfd); |
|
|
1460 | #endif |
|
|
1461 | |
|
|
1462 | if (evpipe [0] >= 0) |
|
|
1463 | { |
1071 | close (sigpipe [0]); |
1464 | close (evpipe [0]); |
1072 | close (sigpipe [1]); |
1465 | close (evpipe [1]); |
|
|
1466 | } |
1073 | |
1467 | |
1074 | while (pipe (sigpipe)) |
|
|
1075 | syserr ("(libev) error creating pipe"); |
|
|
1076 | |
|
|
1077 | siginit (EV_A); |
1468 | evpipe_init (EV_A); |
|
|
1469 | /* now iterate over everything, in case we missed something */ |
|
|
1470 | pipecb (EV_A_ &pipeev, EV_READ); |
1078 | } |
1471 | } |
1079 | |
1472 | |
1080 | postfork = 0; |
1473 | postfork = 0; |
1081 | } |
1474 | } |
1082 | |
1475 | |
1083 | #if EV_MULTIPLICITY |
1476 | #if EV_MULTIPLICITY |
|
|
1477 | |
1084 | struct ev_loop * |
1478 | struct ev_loop * |
1085 | ev_loop_new (unsigned int flags) |
1479 | ev_loop_new (unsigned int flags) |
1086 | { |
1480 | { |
1087 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1481 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1088 | |
1482 | |
… | |
… | |
1104 | } |
1498 | } |
1105 | |
1499 | |
1106 | void |
1500 | void |
1107 | ev_loop_fork (EV_P) |
1501 | ev_loop_fork (EV_P) |
1108 | { |
1502 | { |
1109 | postfork = 1; |
1503 | postfork = 1; /* must be in line with ev_default_fork */ |
1110 | } |
1504 | } |
1111 | |
1505 | |
|
|
1506 | #if EV_VERIFY |
|
|
1507 | static void noinline |
|
|
1508 | verify_watcher (EV_P_ W w) |
|
|
1509 | { |
|
|
1510 | assert (("watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
|
|
1511 | |
|
|
1512 | if (w->pending) |
|
|
1513 | assert (("pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
|
|
1514 | } |
|
|
1515 | |
|
|
1516 | static void noinline |
|
|
1517 | verify_heap (EV_P_ ANHE *heap, int N) |
|
|
1518 | { |
|
|
1519 | int i; |
|
|
1520 | |
|
|
1521 | for (i = HEAP0; i < N + HEAP0; ++i) |
|
|
1522 | { |
|
|
1523 | assert (("active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
|
|
1524 | assert (("heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
|
|
1525 | assert (("heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
|
|
1526 | |
|
|
1527 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
|
|
1528 | } |
|
|
1529 | } |
|
|
1530 | |
|
|
1531 | static void noinline |
|
|
1532 | array_verify (EV_P_ W *ws, int cnt) |
|
|
1533 | { |
|
|
1534 | while (cnt--) |
|
|
1535 | { |
|
|
1536 | assert (("active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
|
|
1537 | verify_watcher (EV_A_ ws [cnt]); |
|
|
1538 | } |
|
|
1539 | } |
|
|
1540 | #endif |
|
|
1541 | |
|
|
1542 | void |
|
|
1543 | ev_loop_verify (EV_P) |
|
|
1544 | { |
|
|
1545 | #if EV_VERIFY |
|
|
1546 | int i; |
|
|
1547 | WL w; |
|
|
1548 | |
|
|
1549 | assert (activecnt >= -1); |
|
|
1550 | |
|
|
1551 | assert (fdchangemax >= fdchangecnt); |
|
|
1552 | for (i = 0; i < fdchangecnt; ++i) |
|
|
1553 | assert (("negative fd in fdchanges", fdchanges [i] >= 0)); |
|
|
1554 | |
|
|
1555 | assert (anfdmax >= 0); |
|
|
1556 | for (i = 0; i < anfdmax; ++i) |
|
|
1557 | for (w = anfds [i].head; w; w = w->next) |
|
|
1558 | { |
|
|
1559 | verify_watcher (EV_A_ (W)w); |
|
|
1560 | assert (("inactive fd watcher on anfd list", ev_active (w) == 1)); |
|
|
1561 | assert (("fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
|
|
1562 | } |
|
|
1563 | |
|
|
1564 | assert (timermax >= timercnt); |
|
|
1565 | verify_heap (EV_A_ timers, timercnt); |
|
|
1566 | |
|
|
1567 | #if EV_PERIODIC_ENABLE |
|
|
1568 | assert (periodicmax >= periodiccnt); |
|
|
1569 | verify_heap (EV_A_ periodics, periodiccnt); |
|
|
1570 | #endif |
|
|
1571 | |
|
|
1572 | for (i = NUMPRI; i--; ) |
|
|
1573 | { |
|
|
1574 | assert (pendingmax [i] >= pendingcnt [i]); |
|
|
1575 | #if EV_IDLE_ENABLE |
|
|
1576 | assert (idleall >= 0); |
|
|
1577 | assert (idlemax [i] >= idlecnt [i]); |
|
|
1578 | array_verify (EV_A_ (W *)idles [i], idlecnt [i]); |
|
|
1579 | #endif |
|
|
1580 | } |
|
|
1581 | |
|
|
1582 | #if EV_FORK_ENABLE |
|
|
1583 | assert (forkmax >= forkcnt); |
|
|
1584 | array_verify (EV_A_ (W *)forks, forkcnt); |
|
|
1585 | #endif |
|
|
1586 | |
|
|
1587 | #if EV_ASYNC_ENABLE |
|
|
1588 | assert (asyncmax >= asynccnt); |
|
|
1589 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
|
|
1590 | #endif |
|
|
1591 | |
|
|
1592 | assert (preparemax >= preparecnt); |
|
|
1593 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
1594 | |
|
|
1595 | assert (checkmax >= checkcnt); |
|
|
1596 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
1597 | |
|
|
1598 | # if 0 |
|
|
1599 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1600 | for (signum = signalmax; signum--; ) if (signals [signum].gotsig) |
1112 | #endif |
1601 | # endif |
|
|
1602 | #endif |
|
|
1603 | } |
|
|
1604 | |
|
|
1605 | #endif /* multiplicity */ |
1113 | |
1606 | |
1114 | #if EV_MULTIPLICITY |
1607 | #if EV_MULTIPLICITY |
1115 | struct ev_loop * |
1608 | struct ev_loop * |
1116 | ev_default_loop_init (unsigned int flags) |
1609 | ev_default_loop_init (unsigned int flags) |
1117 | #else |
1610 | #else |
1118 | int |
1611 | int |
1119 | ev_default_loop (unsigned int flags) |
1612 | ev_default_loop (unsigned int flags) |
1120 | #endif |
1613 | #endif |
1121 | { |
1614 | { |
1122 | if (sigpipe [0] == sigpipe [1]) |
|
|
1123 | if (pipe (sigpipe)) |
|
|
1124 | return 0; |
|
|
1125 | |
|
|
1126 | if (!ev_default_loop_ptr) |
1615 | if (!ev_default_loop_ptr) |
1127 | { |
1616 | { |
1128 | #if EV_MULTIPLICITY |
1617 | #if EV_MULTIPLICITY |
1129 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1618 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1130 | #else |
1619 | #else |
… | |
… | |
1133 | |
1622 | |
1134 | loop_init (EV_A_ flags); |
1623 | loop_init (EV_A_ flags); |
1135 | |
1624 | |
1136 | if (ev_backend (EV_A)) |
1625 | if (ev_backend (EV_A)) |
1137 | { |
1626 | { |
1138 | siginit (EV_A); |
|
|
1139 | |
|
|
1140 | #ifndef _WIN32 |
1627 | #ifndef _WIN32 |
1141 | ev_signal_init (&childev, childcb, SIGCHLD); |
1628 | ev_signal_init (&childev, childcb, SIGCHLD); |
1142 | ev_set_priority (&childev, EV_MAXPRI); |
1629 | ev_set_priority (&childev, EV_MAXPRI); |
1143 | ev_signal_start (EV_A_ &childev); |
1630 | ev_signal_start (EV_A_ &childev); |
1144 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1631 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
… | |
… | |
1156 | { |
1643 | { |
1157 | #if EV_MULTIPLICITY |
1644 | #if EV_MULTIPLICITY |
1158 | struct ev_loop *loop = ev_default_loop_ptr; |
1645 | struct ev_loop *loop = ev_default_loop_ptr; |
1159 | #endif |
1646 | #endif |
1160 | |
1647 | |
|
|
1648 | ev_default_loop_ptr = 0; |
|
|
1649 | |
1161 | #ifndef _WIN32 |
1650 | #ifndef _WIN32 |
1162 | ev_ref (EV_A); /* child watcher */ |
1651 | ev_ref (EV_A); /* child watcher */ |
1163 | ev_signal_stop (EV_A_ &childev); |
1652 | ev_signal_stop (EV_A_ &childev); |
1164 | #endif |
1653 | #endif |
1165 | |
1654 | |
1166 | ev_ref (EV_A); /* signal watcher */ |
|
|
1167 | ev_io_stop (EV_A_ &sigev); |
|
|
1168 | |
|
|
1169 | close (sigpipe [0]); sigpipe [0] = 0; |
|
|
1170 | close (sigpipe [1]); sigpipe [1] = 0; |
|
|
1171 | |
|
|
1172 | loop_destroy (EV_A); |
1655 | loop_destroy (EV_A); |
1173 | } |
1656 | } |
1174 | |
1657 | |
1175 | void |
1658 | void |
1176 | ev_default_fork (void) |
1659 | ev_default_fork (void) |
1177 | { |
1660 | { |
1178 | #if EV_MULTIPLICITY |
1661 | #if EV_MULTIPLICITY |
1179 | struct ev_loop *loop = ev_default_loop_ptr; |
1662 | struct ev_loop *loop = ev_default_loop_ptr; |
1180 | #endif |
1663 | #endif |
1181 | |
1664 | |
1182 | if (backend) |
1665 | postfork = 1; /* must be in line with ev_loop_fork */ |
1183 | postfork = 1; |
|
|
1184 | } |
1666 | } |
1185 | |
1667 | |
1186 | /*****************************************************************************/ |
1668 | /*****************************************************************************/ |
1187 | |
1669 | |
1188 | void |
1670 | void |
… | |
… | |
1205 | { |
1687 | { |
1206 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
1688 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
1207 | |
1689 | |
1208 | p->w->pending = 0; |
1690 | p->w->pending = 0; |
1209 | EV_CB_INVOKE (p->w, p->events); |
1691 | EV_CB_INVOKE (p->w, p->events); |
|
|
1692 | EV_FREQUENT_CHECK; |
1210 | } |
1693 | } |
1211 | } |
1694 | } |
1212 | } |
1695 | } |
1213 | |
|
|
1214 | void inline_size |
|
|
1215 | timers_reify (EV_P) |
|
|
1216 | { |
|
|
1217 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
|
|
1218 | { |
|
|
1219 | ev_timer *w = (ev_timer *)timers [0]; |
|
|
1220 | |
|
|
1221 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1222 | |
|
|
1223 | /* first reschedule or stop timer */ |
|
|
1224 | if (w->repeat) |
|
|
1225 | { |
|
|
1226 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1227 | |
|
|
1228 | ((WT)w)->at += w->repeat; |
|
|
1229 | if (((WT)w)->at < mn_now) |
|
|
1230 | ((WT)w)->at = mn_now; |
|
|
1231 | |
|
|
1232 | downheap (timers, timercnt, 0); |
|
|
1233 | } |
|
|
1234 | else |
|
|
1235 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1236 | |
|
|
1237 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
|
|
1238 | } |
|
|
1239 | } |
|
|
1240 | |
|
|
1241 | #if EV_PERIODIC_ENABLE |
|
|
1242 | void inline_size |
|
|
1243 | periodics_reify (EV_P) |
|
|
1244 | { |
|
|
1245 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
|
|
1246 | { |
|
|
1247 | ev_periodic *w = (ev_periodic *)periodics [0]; |
|
|
1248 | |
|
|
1249 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
1250 | |
|
|
1251 | /* first reschedule or stop timer */ |
|
|
1252 | if (w->reschedule_cb) |
|
|
1253 | { |
|
|
1254 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); |
|
|
1255 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
|
|
1256 | downheap (periodics, periodiccnt, 0); |
|
|
1257 | } |
|
|
1258 | else if (w->interval) |
|
|
1259 | { |
|
|
1260 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1261 | if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval; |
|
|
1262 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
|
|
1263 | downheap (periodics, periodiccnt, 0); |
|
|
1264 | } |
|
|
1265 | else |
|
|
1266 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1267 | |
|
|
1268 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
|
|
1269 | } |
|
|
1270 | } |
|
|
1271 | |
|
|
1272 | static void noinline |
|
|
1273 | periodics_reschedule (EV_P) |
|
|
1274 | { |
|
|
1275 | int i; |
|
|
1276 | |
|
|
1277 | /* adjust periodics after time jump */ |
|
|
1278 | for (i = 0; i < periodiccnt; ++i) |
|
|
1279 | { |
|
|
1280 | ev_periodic *w = (ev_periodic *)periodics [i]; |
|
|
1281 | |
|
|
1282 | if (w->reschedule_cb) |
|
|
1283 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
|
|
1284 | else if (w->interval) |
|
|
1285 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1286 | } |
|
|
1287 | |
|
|
1288 | /* now rebuild the heap */ |
|
|
1289 | for (i = periodiccnt >> 1; i--; ) |
|
|
1290 | downheap (periodics, periodiccnt, i); |
|
|
1291 | } |
|
|
1292 | #endif |
|
|
1293 | |
1696 | |
1294 | #if EV_IDLE_ENABLE |
1697 | #if EV_IDLE_ENABLE |
1295 | void inline_size |
1698 | void inline_size |
1296 | idle_reify (EV_P) |
1699 | idle_reify (EV_P) |
1297 | { |
1700 | { |
… | |
… | |
1309 | queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE); |
1712 | queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE); |
1310 | break; |
1713 | break; |
1311 | } |
1714 | } |
1312 | } |
1715 | } |
1313 | } |
1716 | } |
|
|
1717 | } |
|
|
1718 | #endif |
|
|
1719 | |
|
|
1720 | void inline_size |
|
|
1721 | timers_reify (EV_P) |
|
|
1722 | { |
|
|
1723 | EV_FREQUENT_CHECK; |
|
|
1724 | |
|
|
1725 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
|
|
1726 | { |
|
|
1727 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
|
|
1728 | |
|
|
1729 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1730 | |
|
|
1731 | /* first reschedule or stop timer */ |
|
|
1732 | if (w->repeat) |
|
|
1733 | { |
|
|
1734 | ev_at (w) += w->repeat; |
|
|
1735 | if (ev_at (w) < mn_now) |
|
|
1736 | ev_at (w) = mn_now; |
|
|
1737 | |
|
|
1738 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1739 | |
|
|
1740 | ANHE_at_cache (timers [HEAP0]); |
|
|
1741 | downheap (timers, timercnt, HEAP0); |
|
|
1742 | } |
|
|
1743 | else |
|
|
1744 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1745 | |
|
|
1746 | EV_FREQUENT_CHECK; |
|
|
1747 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
|
|
1748 | } |
|
|
1749 | } |
|
|
1750 | |
|
|
1751 | #if EV_PERIODIC_ENABLE |
|
|
1752 | void inline_size |
|
|
1753 | periodics_reify (EV_P) |
|
|
1754 | { |
|
|
1755 | EV_FREQUENT_CHECK; |
|
|
1756 | |
|
|
1757 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
|
|
1758 | { |
|
|
1759 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
|
|
1760 | |
|
|
1761 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
1762 | |
|
|
1763 | /* first reschedule or stop timer */ |
|
|
1764 | if (w->reschedule_cb) |
|
|
1765 | { |
|
|
1766 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
1767 | |
|
|
1768 | assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
|
|
1769 | |
|
|
1770 | ANHE_at_cache (periodics [HEAP0]); |
|
|
1771 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1772 | } |
|
|
1773 | else if (w->interval) |
|
|
1774 | { |
|
|
1775 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1776 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
1777 | /* this might happen because of floating point inexactness */ |
|
|
1778 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
1779 | { |
|
|
1780 | ev_at (w) += w->interval; |
|
|
1781 | |
|
|
1782 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
1783 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
1784 | /* has effectively asked to get triggered more often than possible */ |
|
|
1785 | if (ev_at (w) < ev_rt_now) |
|
|
1786 | ev_at (w) = ev_rt_now; |
|
|
1787 | } |
|
|
1788 | |
|
|
1789 | ANHE_at_cache (periodics [HEAP0]); |
|
|
1790 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1791 | } |
|
|
1792 | else |
|
|
1793 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1794 | |
|
|
1795 | EV_FREQUENT_CHECK; |
|
|
1796 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
|
|
1797 | } |
|
|
1798 | } |
|
|
1799 | |
|
|
1800 | static void noinline |
|
|
1801 | periodics_reschedule (EV_P) |
|
|
1802 | { |
|
|
1803 | int i; |
|
|
1804 | |
|
|
1805 | /* adjust periodics after time jump */ |
|
|
1806 | for (i = HEAP0; i < periodiccnt + HEAP0; ++i) |
|
|
1807 | { |
|
|
1808 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
|
|
1809 | |
|
|
1810 | if (w->reschedule_cb) |
|
|
1811 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
1812 | else if (w->interval) |
|
|
1813 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1814 | |
|
|
1815 | ANHE_at_cache (periodics [i]); |
|
|
1816 | } |
|
|
1817 | |
|
|
1818 | reheap (periodics, periodiccnt); |
1314 | } |
1819 | } |
1315 | #endif |
1820 | #endif |
1316 | |
1821 | |
1317 | void inline_speed |
1822 | void inline_speed |
1318 | time_update (EV_P_ ev_tstamp max_block) |
1823 | time_update (EV_P_ ev_tstamp max_block) |
… | |
… | |
1347 | */ |
1852 | */ |
1348 | for (i = 4; --i; ) |
1853 | for (i = 4; --i; ) |
1349 | { |
1854 | { |
1350 | rtmn_diff = ev_rt_now - mn_now; |
1855 | rtmn_diff = ev_rt_now - mn_now; |
1351 | |
1856 | |
1352 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1857 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
1353 | return; /* all is well */ |
1858 | return; /* all is well */ |
1354 | |
1859 | |
1355 | ev_rt_now = ev_time (); |
1860 | ev_rt_now = ev_time (); |
1356 | mn_now = get_clock (); |
1861 | mn_now = get_clock (); |
1357 | now_floor = mn_now; |
1862 | now_floor = mn_now; |
… | |
… | |
1373 | #if EV_PERIODIC_ENABLE |
1878 | #if EV_PERIODIC_ENABLE |
1374 | periodics_reschedule (EV_A); |
1879 | periodics_reschedule (EV_A); |
1375 | #endif |
1880 | #endif |
1376 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
1881 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
1377 | for (i = 0; i < timercnt; ++i) |
1882 | for (i = 0; i < timercnt; ++i) |
|
|
1883 | { |
|
|
1884 | ANHE *he = timers + i + HEAP0; |
1378 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
1885 | ANHE_w (*he)->at += ev_rt_now - mn_now; |
|
|
1886 | ANHE_at_cache (*he); |
|
|
1887 | } |
1379 | } |
1888 | } |
1380 | |
1889 | |
1381 | mn_now = ev_rt_now; |
1890 | mn_now = ev_rt_now; |
1382 | } |
1891 | } |
1383 | } |
1892 | } |
… | |
… | |
1392 | ev_unref (EV_P) |
1901 | ev_unref (EV_P) |
1393 | { |
1902 | { |
1394 | --activecnt; |
1903 | --activecnt; |
1395 | } |
1904 | } |
1396 | |
1905 | |
|
|
1906 | void |
|
|
1907 | ev_now_update (EV_P) |
|
|
1908 | { |
|
|
1909 | time_update (EV_A_ 1e100); |
|
|
1910 | } |
|
|
1911 | |
1397 | static int loop_done; |
1912 | static int loop_done; |
1398 | |
1913 | |
1399 | void |
1914 | void |
1400 | ev_loop (EV_P_ int flags) |
1915 | ev_loop (EV_P_ int flags) |
1401 | { |
1916 | { |
1402 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) |
1917 | loop_done = EVUNLOOP_CANCEL; |
1403 | ? EVUNLOOP_ONE |
|
|
1404 | : EVUNLOOP_CANCEL; |
|
|
1405 | |
1918 | |
1406 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
1919 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
1407 | |
1920 | |
1408 | do |
1921 | do |
1409 | { |
1922 | { |
|
|
1923 | #if EV_VERIFY >= 2 |
|
|
1924 | ev_loop_verify (EV_A); |
|
|
1925 | #endif |
|
|
1926 | |
1410 | #ifndef _WIN32 |
1927 | #ifndef _WIN32 |
1411 | if (expect_false (curpid)) /* penalise the forking check even more */ |
1928 | if (expect_false (curpid)) /* penalise the forking check even more */ |
1412 | if (expect_false (getpid () != curpid)) |
1929 | if (expect_false (getpid () != curpid)) |
1413 | { |
1930 | { |
1414 | curpid = getpid (); |
1931 | curpid = getpid (); |
… | |
… | |
1443 | /* update fd-related kernel structures */ |
1960 | /* update fd-related kernel structures */ |
1444 | fd_reify (EV_A); |
1961 | fd_reify (EV_A); |
1445 | |
1962 | |
1446 | /* calculate blocking time */ |
1963 | /* calculate blocking time */ |
1447 | { |
1964 | { |
1448 | ev_tstamp block; |
1965 | ev_tstamp waittime = 0.; |
|
|
1966 | ev_tstamp sleeptime = 0.; |
1449 | |
1967 | |
1450 | if (expect_false (flags & EVLOOP_NONBLOCK || idleall || !activecnt)) |
1968 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
1451 | block = 0.; /* do not block at all */ |
|
|
1452 | else |
|
|
1453 | { |
1969 | { |
1454 | /* update time to cancel out callback processing overhead */ |
1970 | /* update time to cancel out callback processing overhead */ |
1455 | time_update (EV_A_ 1e100); |
1971 | time_update (EV_A_ 1e100); |
1456 | |
1972 | |
1457 | block = MAX_BLOCKTIME; |
1973 | waittime = MAX_BLOCKTIME; |
1458 | |
1974 | |
1459 | if (timercnt) |
1975 | if (timercnt) |
1460 | { |
1976 | { |
1461 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
1977 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
1462 | if (block > to) block = to; |
1978 | if (waittime > to) waittime = to; |
1463 | } |
1979 | } |
1464 | |
1980 | |
1465 | #if EV_PERIODIC_ENABLE |
1981 | #if EV_PERIODIC_ENABLE |
1466 | if (periodiccnt) |
1982 | if (periodiccnt) |
1467 | { |
1983 | { |
1468 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
1984 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
1469 | if (block > to) block = to; |
1985 | if (waittime > to) waittime = to; |
1470 | } |
1986 | } |
1471 | #endif |
1987 | #endif |
1472 | |
1988 | |
1473 | if (expect_false (block < 0.)) block = 0.; |
1989 | if (expect_false (waittime < timeout_blocktime)) |
|
|
1990 | waittime = timeout_blocktime; |
|
|
1991 | |
|
|
1992 | sleeptime = waittime - backend_fudge; |
|
|
1993 | |
|
|
1994 | if (expect_true (sleeptime > io_blocktime)) |
|
|
1995 | sleeptime = io_blocktime; |
|
|
1996 | |
|
|
1997 | if (sleeptime) |
|
|
1998 | { |
|
|
1999 | ev_sleep (sleeptime); |
|
|
2000 | waittime -= sleeptime; |
|
|
2001 | } |
1474 | } |
2002 | } |
1475 | |
2003 | |
1476 | ++loop_count; |
2004 | ++loop_count; |
1477 | backend_poll (EV_A_ block); |
2005 | backend_poll (EV_A_ waittime); |
1478 | |
2006 | |
1479 | /* update ev_rt_now, do magic */ |
2007 | /* update ev_rt_now, do magic */ |
1480 | time_update (EV_A_ block); |
2008 | time_update (EV_A_ waittime + sleeptime); |
1481 | } |
2009 | } |
1482 | |
2010 | |
1483 | /* queue pending timers and reschedule them */ |
2011 | /* queue pending timers and reschedule them */ |
1484 | timers_reify (EV_A); /* relative timers called last */ |
2012 | timers_reify (EV_A); /* relative timers called last */ |
1485 | #if EV_PERIODIC_ENABLE |
2013 | #if EV_PERIODIC_ENABLE |
… | |
… | |
1494 | /* queue check watchers, to be executed first */ |
2022 | /* queue check watchers, to be executed first */ |
1495 | if (expect_false (checkcnt)) |
2023 | if (expect_false (checkcnt)) |
1496 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2024 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1497 | |
2025 | |
1498 | call_pending (EV_A); |
2026 | call_pending (EV_A); |
1499 | |
|
|
1500 | } |
2027 | } |
1501 | while (expect_true (activecnt && !loop_done)); |
2028 | while (expect_true ( |
|
|
2029 | activecnt |
|
|
2030 | && !loop_done |
|
|
2031 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
|
|
2032 | )); |
1502 | |
2033 | |
1503 | if (loop_done == EVUNLOOP_ONE) |
2034 | if (loop_done == EVUNLOOP_ONE) |
1504 | loop_done = EVUNLOOP_CANCEL; |
2035 | loop_done = EVUNLOOP_CANCEL; |
1505 | } |
2036 | } |
1506 | |
2037 | |
… | |
… | |
1594 | |
2125 | |
1595 | if (expect_false (ev_is_active (w))) |
2126 | if (expect_false (ev_is_active (w))) |
1596 | return; |
2127 | return; |
1597 | |
2128 | |
1598 | assert (("ev_io_start called with negative fd", fd >= 0)); |
2129 | assert (("ev_io_start called with negative fd", fd >= 0)); |
|
|
2130 | assert (("ev_io start called with illegal event mask", !(w->events & ~(EV_IOFDSET | EV_READ | EV_WRITE)))); |
|
|
2131 | |
|
|
2132 | EV_FREQUENT_CHECK; |
1599 | |
2133 | |
1600 | ev_start (EV_A_ (W)w, 1); |
2134 | ev_start (EV_A_ (W)w, 1); |
1601 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
2135 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
1602 | wlist_add (&anfds[fd].head, (WL)w); |
2136 | wlist_add (&anfds[fd].head, (WL)w); |
1603 | |
2137 | |
1604 | fd_change (EV_A_ fd); |
2138 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
|
|
2139 | w->events &= ~EV_IOFDSET; |
|
|
2140 | |
|
|
2141 | EV_FREQUENT_CHECK; |
1605 | } |
2142 | } |
1606 | |
2143 | |
1607 | void noinline |
2144 | void noinline |
1608 | ev_io_stop (EV_P_ ev_io *w) |
2145 | ev_io_stop (EV_P_ ev_io *w) |
1609 | { |
2146 | { |
1610 | clear_pending (EV_A_ (W)w); |
2147 | clear_pending (EV_A_ (W)w); |
1611 | if (expect_false (!ev_is_active (w))) |
2148 | if (expect_false (!ev_is_active (w))) |
1612 | return; |
2149 | return; |
1613 | |
2150 | |
1614 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2151 | assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
|
|
2152 | |
|
|
2153 | EV_FREQUENT_CHECK; |
1615 | |
2154 | |
1616 | wlist_del (&anfds[w->fd].head, (WL)w); |
2155 | wlist_del (&anfds[w->fd].head, (WL)w); |
1617 | ev_stop (EV_A_ (W)w); |
2156 | ev_stop (EV_A_ (W)w); |
1618 | |
2157 | |
1619 | fd_change (EV_A_ w->fd); |
2158 | fd_change (EV_A_ w->fd, 1); |
|
|
2159 | |
|
|
2160 | EV_FREQUENT_CHECK; |
1620 | } |
2161 | } |
1621 | |
2162 | |
1622 | void noinline |
2163 | void noinline |
1623 | ev_timer_start (EV_P_ ev_timer *w) |
2164 | ev_timer_start (EV_P_ ev_timer *w) |
1624 | { |
2165 | { |
1625 | if (expect_false (ev_is_active (w))) |
2166 | if (expect_false (ev_is_active (w))) |
1626 | return; |
2167 | return; |
1627 | |
2168 | |
1628 | ((WT)w)->at += mn_now; |
2169 | ev_at (w) += mn_now; |
1629 | |
2170 | |
1630 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2171 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1631 | |
2172 | |
|
|
2173 | EV_FREQUENT_CHECK; |
|
|
2174 | |
|
|
2175 | ++timercnt; |
1632 | ev_start (EV_A_ (W)w, ++timercnt); |
2176 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
1633 | array_needsize (WT, timers, timermax, timercnt, EMPTY2); |
2177 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
1634 | timers [timercnt - 1] = (WT)w; |
2178 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
1635 | upheap (timers, timercnt - 1); |
2179 | ANHE_at_cache (timers [ev_active (w)]); |
|
|
2180 | upheap (timers, ev_active (w)); |
1636 | |
2181 | |
|
|
2182 | EV_FREQUENT_CHECK; |
|
|
2183 | |
1637 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
2184 | /*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
1638 | } |
2185 | } |
1639 | |
2186 | |
1640 | void noinline |
2187 | void noinline |
1641 | ev_timer_stop (EV_P_ ev_timer *w) |
2188 | ev_timer_stop (EV_P_ ev_timer *w) |
1642 | { |
2189 | { |
1643 | clear_pending (EV_A_ (W)w); |
2190 | clear_pending (EV_A_ (W)w); |
1644 | if (expect_false (!ev_is_active (w))) |
2191 | if (expect_false (!ev_is_active (w))) |
1645 | return; |
2192 | return; |
1646 | |
2193 | |
1647 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w)); |
2194 | EV_FREQUENT_CHECK; |
1648 | |
2195 | |
1649 | { |
2196 | { |
1650 | int active = ((W)w)->active; |
2197 | int active = ev_active (w); |
1651 | |
2198 | |
|
|
2199 | assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
|
|
2200 | |
|
|
2201 | --timercnt; |
|
|
2202 | |
1652 | if (expect_true (--active < --timercnt)) |
2203 | if (expect_true (active < timercnt + HEAP0)) |
1653 | { |
2204 | { |
1654 | timers [active] = timers [timercnt]; |
2205 | timers [active] = timers [timercnt + HEAP0]; |
1655 | adjustheap (timers, timercnt, active); |
2206 | adjustheap (timers, timercnt, active); |
1656 | } |
2207 | } |
1657 | } |
2208 | } |
1658 | |
2209 | |
1659 | ((WT)w)->at -= mn_now; |
2210 | EV_FREQUENT_CHECK; |
|
|
2211 | |
|
|
2212 | ev_at (w) -= mn_now; |
1660 | |
2213 | |
1661 | ev_stop (EV_A_ (W)w); |
2214 | ev_stop (EV_A_ (W)w); |
1662 | } |
2215 | } |
1663 | |
2216 | |
1664 | void noinline |
2217 | void noinline |
1665 | ev_timer_again (EV_P_ ev_timer *w) |
2218 | ev_timer_again (EV_P_ ev_timer *w) |
1666 | { |
2219 | { |
|
|
2220 | EV_FREQUENT_CHECK; |
|
|
2221 | |
1667 | if (ev_is_active (w)) |
2222 | if (ev_is_active (w)) |
1668 | { |
2223 | { |
1669 | if (w->repeat) |
2224 | if (w->repeat) |
1670 | { |
2225 | { |
1671 | ((WT)w)->at = mn_now + w->repeat; |
2226 | ev_at (w) = mn_now + w->repeat; |
|
|
2227 | ANHE_at_cache (timers [ev_active (w)]); |
1672 | adjustheap (timers, timercnt, ((W)w)->active - 1); |
2228 | adjustheap (timers, timercnt, ev_active (w)); |
1673 | } |
2229 | } |
1674 | else |
2230 | else |
1675 | ev_timer_stop (EV_A_ w); |
2231 | ev_timer_stop (EV_A_ w); |
1676 | } |
2232 | } |
1677 | else if (w->repeat) |
2233 | else if (w->repeat) |
1678 | { |
2234 | { |
1679 | w->at = w->repeat; |
2235 | ev_at (w) = w->repeat; |
1680 | ev_timer_start (EV_A_ w); |
2236 | ev_timer_start (EV_A_ w); |
1681 | } |
2237 | } |
|
|
2238 | |
|
|
2239 | EV_FREQUENT_CHECK; |
1682 | } |
2240 | } |
1683 | |
2241 | |
1684 | #if EV_PERIODIC_ENABLE |
2242 | #if EV_PERIODIC_ENABLE |
1685 | void noinline |
2243 | void noinline |
1686 | ev_periodic_start (EV_P_ ev_periodic *w) |
2244 | ev_periodic_start (EV_P_ ev_periodic *w) |
1687 | { |
2245 | { |
1688 | if (expect_false (ev_is_active (w))) |
2246 | if (expect_false (ev_is_active (w))) |
1689 | return; |
2247 | return; |
1690 | |
2248 | |
1691 | if (w->reschedule_cb) |
2249 | if (w->reschedule_cb) |
1692 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
2250 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1693 | else if (w->interval) |
2251 | else if (w->interval) |
1694 | { |
2252 | { |
1695 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2253 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1696 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2254 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1697 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2255 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1698 | } |
2256 | } |
1699 | else |
2257 | else |
1700 | ((WT)w)->at = w->offset; |
2258 | ev_at (w) = w->offset; |
1701 | |
2259 | |
|
|
2260 | EV_FREQUENT_CHECK; |
|
|
2261 | |
|
|
2262 | ++periodiccnt; |
1702 | ev_start (EV_A_ (W)w, ++periodiccnt); |
2263 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
1703 | array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2); |
2264 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
1704 | periodics [periodiccnt - 1] = (WT)w; |
2265 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
1705 | upheap (periodics, periodiccnt - 1); |
2266 | ANHE_at_cache (periodics [ev_active (w)]); |
|
|
2267 | upheap (periodics, ev_active (w)); |
1706 | |
2268 | |
|
|
2269 | EV_FREQUENT_CHECK; |
|
|
2270 | |
1707 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
2271 | /*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
1708 | } |
2272 | } |
1709 | |
2273 | |
1710 | void noinline |
2274 | void noinline |
1711 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2275 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1712 | { |
2276 | { |
1713 | clear_pending (EV_A_ (W)w); |
2277 | clear_pending (EV_A_ (W)w); |
1714 | if (expect_false (!ev_is_active (w))) |
2278 | if (expect_false (!ev_is_active (w))) |
1715 | return; |
2279 | return; |
1716 | |
2280 | |
1717 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w)); |
2281 | EV_FREQUENT_CHECK; |
1718 | |
2282 | |
1719 | { |
2283 | { |
1720 | int active = ((W)w)->active; |
2284 | int active = ev_active (w); |
1721 | |
2285 | |
|
|
2286 | assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
|
|
2287 | |
|
|
2288 | --periodiccnt; |
|
|
2289 | |
1722 | if (expect_true (--active < --periodiccnt)) |
2290 | if (expect_true (active < periodiccnt + HEAP0)) |
1723 | { |
2291 | { |
1724 | periodics [active] = periodics [periodiccnt]; |
2292 | periodics [active] = periodics [periodiccnt + HEAP0]; |
1725 | adjustheap (periodics, periodiccnt, active); |
2293 | adjustheap (periodics, periodiccnt, active); |
1726 | } |
2294 | } |
1727 | } |
2295 | } |
1728 | |
2296 | |
|
|
2297 | EV_FREQUENT_CHECK; |
|
|
2298 | |
1729 | ev_stop (EV_A_ (W)w); |
2299 | ev_stop (EV_A_ (W)w); |
1730 | } |
2300 | } |
1731 | |
2301 | |
1732 | void noinline |
2302 | void noinline |
1733 | ev_periodic_again (EV_P_ ev_periodic *w) |
2303 | ev_periodic_again (EV_P_ ev_periodic *w) |
… | |
… | |
1750 | #endif |
2320 | #endif |
1751 | if (expect_false (ev_is_active (w))) |
2321 | if (expect_false (ev_is_active (w))) |
1752 | return; |
2322 | return; |
1753 | |
2323 | |
1754 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2324 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
|
|
2325 | |
|
|
2326 | evpipe_init (EV_A); |
|
|
2327 | |
|
|
2328 | EV_FREQUENT_CHECK; |
1755 | |
2329 | |
1756 | { |
2330 | { |
1757 | #ifndef _WIN32 |
2331 | #ifndef _WIN32 |
1758 | sigset_t full, prev; |
2332 | sigset_t full, prev; |
1759 | sigfillset (&full); |
2333 | sigfillset (&full); |
1760 | sigprocmask (SIG_SETMASK, &full, &prev); |
2334 | sigprocmask (SIG_SETMASK, &full, &prev); |
1761 | #endif |
2335 | #endif |
1762 | |
2336 | |
1763 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
2337 | array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); |
1764 | |
2338 | |
1765 | #ifndef _WIN32 |
2339 | #ifndef _WIN32 |
1766 | sigprocmask (SIG_SETMASK, &prev, 0); |
2340 | sigprocmask (SIG_SETMASK, &prev, 0); |
1767 | #endif |
2341 | #endif |
1768 | } |
2342 | } |
… | |
… | |
1771 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2345 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
1772 | |
2346 | |
1773 | if (!((WL)w)->next) |
2347 | if (!((WL)w)->next) |
1774 | { |
2348 | { |
1775 | #if _WIN32 |
2349 | #if _WIN32 |
1776 | signal (w->signum, sighandler); |
2350 | signal (w->signum, ev_sighandler); |
1777 | #else |
2351 | #else |
1778 | struct sigaction sa; |
2352 | struct sigaction sa; |
1779 | sa.sa_handler = sighandler; |
2353 | sa.sa_handler = ev_sighandler; |
1780 | sigfillset (&sa.sa_mask); |
2354 | sigfillset (&sa.sa_mask); |
1781 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2355 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1782 | sigaction (w->signum, &sa, 0); |
2356 | sigaction (w->signum, &sa, 0); |
1783 | #endif |
2357 | #endif |
1784 | } |
2358 | } |
|
|
2359 | |
|
|
2360 | EV_FREQUENT_CHECK; |
1785 | } |
2361 | } |
1786 | |
2362 | |
1787 | void noinline |
2363 | void noinline |
1788 | ev_signal_stop (EV_P_ ev_signal *w) |
2364 | ev_signal_stop (EV_P_ ev_signal *w) |
1789 | { |
2365 | { |
1790 | clear_pending (EV_A_ (W)w); |
2366 | clear_pending (EV_A_ (W)w); |
1791 | if (expect_false (!ev_is_active (w))) |
2367 | if (expect_false (!ev_is_active (w))) |
1792 | return; |
2368 | return; |
1793 | |
2369 | |
|
|
2370 | EV_FREQUENT_CHECK; |
|
|
2371 | |
1794 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2372 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
1795 | ev_stop (EV_A_ (W)w); |
2373 | ev_stop (EV_A_ (W)w); |
1796 | |
2374 | |
1797 | if (!signals [w->signum - 1].head) |
2375 | if (!signals [w->signum - 1].head) |
1798 | signal (w->signum, SIG_DFL); |
2376 | signal (w->signum, SIG_DFL); |
|
|
2377 | |
|
|
2378 | EV_FREQUENT_CHECK; |
1799 | } |
2379 | } |
1800 | |
2380 | |
1801 | void |
2381 | void |
1802 | ev_child_start (EV_P_ ev_child *w) |
2382 | ev_child_start (EV_P_ ev_child *w) |
1803 | { |
2383 | { |
… | |
… | |
1805 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2385 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1806 | #endif |
2386 | #endif |
1807 | if (expect_false (ev_is_active (w))) |
2387 | if (expect_false (ev_is_active (w))) |
1808 | return; |
2388 | return; |
1809 | |
2389 | |
|
|
2390 | EV_FREQUENT_CHECK; |
|
|
2391 | |
1810 | ev_start (EV_A_ (W)w, 1); |
2392 | ev_start (EV_A_ (W)w, 1); |
1811 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2393 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
|
|
2394 | |
|
|
2395 | EV_FREQUENT_CHECK; |
1812 | } |
2396 | } |
1813 | |
2397 | |
1814 | void |
2398 | void |
1815 | ev_child_stop (EV_P_ ev_child *w) |
2399 | ev_child_stop (EV_P_ ev_child *w) |
1816 | { |
2400 | { |
1817 | clear_pending (EV_A_ (W)w); |
2401 | clear_pending (EV_A_ (W)w); |
1818 | if (expect_false (!ev_is_active (w))) |
2402 | if (expect_false (!ev_is_active (w))) |
1819 | return; |
2403 | return; |
1820 | |
2404 | |
|
|
2405 | EV_FREQUENT_CHECK; |
|
|
2406 | |
1821 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2407 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1822 | ev_stop (EV_A_ (W)w); |
2408 | ev_stop (EV_A_ (W)w); |
|
|
2409 | |
|
|
2410 | EV_FREQUENT_CHECK; |
1823 | } |
2411 | } |
1824 | |
2412 | |
1825 | #if EV_STAT_ENABLE |
2413 | #if EV_STAT_ENABLE |
1826 | |
2414 | |
1827 | # ifdef _WIN32 |
2415 | # ifdef _WIN32 |
1828 | # undef lstat |
2416 | # undef lstat |
1829 | # define lstat(a,b) _stati64 (a,b) |
2417 | # define lstat(a,b) _stati64 (a,b) |
1830 | # endif |
2418 | # endif |
1831 | |
2419 | |
1832 | #define DEF_STAT_INTERVAL 5.0074891 |
2420 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
2421 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
1833 | #define MIN_STAT_INTERVAL 0.1074891 |
2422 | #define MIN_STAT_INTERVAL 0.1074891 |
1834 | |
2423 | |
1835 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2424 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
1836 | |
2425 | |
1837 | #if EV_USE_INOTIFY |
2426 | #if EV_USE_INOTIFY |
1838 | # define EV_INOTIFY_BUFSIZE 8192 |
2427 | # define EV_INOTIFY_BUFSIZE 8192 |
… | |
… | |
1842 | { |
2431 | { |
1843 | w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); |
2432 | w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); |
1844 | |
2433 | |
1845 | if (w->wd < 0) |
2434 | if (w->wd < 0) |
1846 | { |
2435 | { |
|
|
2436 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
1847 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2437 | ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
1848 | |
2438 | |
1849 | /* monitor some parent directory for speedup hints */ |
2439 | /* monitor some parent directory for speedup hints */ |
|
|
2440 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
|
|
2441 | /* but an efficiency issue only */ |
1850 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2442 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
1851 | { |
2443 | { |
1852 | char path [4096]; |
2444 | char path [4096]; |
1853 | strcpy (path, w->path); |
2445 | strcpy (path, w->path); |
1854 | |
2446 | |
… | |
… | |
1867 | } |
2459 | } |
1868 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2460 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
1869 | } |
2461 | } |
1870 | } |
2462 | } |
1871 | else |
2463 | else |
1872 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
2464 | { |
1873 | |
|
|
1874 | if (w->wd >= 0) |
|
|
1875 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2465 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
2466 | |
|
|
2467 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
2468 | /* unless the filesystem it known to be local, we therefore still poll */ |
|
|
2469 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2470 | struct statfs sfs; |
|
|
2471 | |
|
|
2472 | if (fs_2625 && !statfs (w->path, &sfs)) |
|
|
2473 | if (sfs.f_type == 0x1373 /* devfs */ |
|
|
2474 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2475 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2476 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2477 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2478 | || sfs.f_type == 0x58465342 /* xfs */) |
|
|
2479 | return; |
|
|
2480 | |
|
|
2481 | w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2482 | ev_timer_again (EV_A_ &w->timer); |
|
|
2483 | } |
1876 | } |
2484 | } |
1877 | |
2485 | |
1878 | static void noinline |
2486 | static void noinline |
1879 | infy_del (EV_P_ ev_stat *w) |
2487 | infy_del (EV_P_ ev_stat *w) |
1880 | { |
2488 | { |
… | |
… | |
1894 | |
2502 | |
1895 | static void noinline |
2503 | static void noinline |
1896 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2504 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
1897 | { |
2505 | { |
1898 | if (slot < 0) |
2506 | if (slot < 0) |
1899 | /* overflow, need to check for all hahs slots */ |
2507 | /* overflow, need to check for all hash slots */ |
1900 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2508 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
1901 | infy_wd (EV_A_ slot, wd, ev); |
2509 | infy_wd (EV_A_ slot, wd, ev); |
1902 | else |
2510 | else |
1903 | { |
2511 | { |
1904 | WL w_; |
2512 | WL w_; |
… | |
… | |
1933 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
2541 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
1934 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
2542 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
1935 | } |
2543 | } |
1936 | |
2544 | |
1937 | void inline_size |
2545 | void inline_size |
|
|
2546 | check_2625 (EV_P) |
|
|
2547 | { |
|
|
2548 | /* kernels < 2.6.25 are borked |
|
|
2549 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
|
|
2550 | */ |
|
|
2551 | struct utsname buf; |
|
|
2552 | int major, minor, micro; |
|
|
2553 | |
|
|
2554 | if (uname (&buf)) |
|
|
2555 | return; |
|
|
2556 | |
|
|
2557 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
|
|
2558 | return; |
|
|
2559 | |
|
|
2560 | if (major < 2 |
|
|
2561 | || (major == 2 && minor < 6) |
|
|
2562 | || (major == 2 && minor == 6 && micro < 25)) |
|
|
2563 | return; |
|
|
2564 | |
|
|
2565 | fs_2625 = 1; |
|
|
2566 | } |
|
|
2567 | |
|
|
2568 | void inline_size |
1938 | infy_init (EV_P) |
2569 | infy_init (EV_P) |
1939 | { |
2570 | { |
1940 | if (fs_fd != -2) |
2571 | if (fs_fd != -2) |
1941 | return; |
2572 | return; |
|
|
2573 | |
|
|
2574 | fs_fd = -1; |
|
|
2575 | |
|
|
2576 | check_2625 (EV_A); |
1942 | |
2577 | |
1943 | fs_fd = inotify_init (); |
2578 | fs_fd = inotify_init (); |
1944 | |
2579 | |
1945 | if (fs_fd >= 0) |
2580 | if (fs_fd >= 0) |
1946 | { |
2581 | { |
… | |
… | |
1974 | w->wd = -1; |
2609 | w->wd = -1; |
1975 | |
2610 | |
1976 | if (fs_fd >= 0) |
2611 | if (fs_fd >= 0) |
1977 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2612 | infy_add (EV_A_ w); /* re-add, no matter what */ |
1978 | else |
2613 | else |
1979 | ev_timer_start (EV_A_ &w->timer); |
2614 | ev_timer_again (EV_A_ &w->timer); |
1980 | } |
2615 | } |
1981 | |
|
|
1982 | } |
2616 | } |
1983 | } |
2617 | } |
1984 | |
2618 | |
|
|
2619 | #endif |
|
|
2620 | |
|
|
2621 | #ifdef _WIN32 |
|
|
2622 | # define EV_LSTAT(p,b) _stati64 (p, b) |
|
|
2623 | #else |
|
|
2624 | # define EV_LSTAT(p,b) lstat (p, b) |
1985 | #endif |
2625 | #endif |
1986 | |
2626 | |
1987 | void |
2627 | void |
1988 | ev_stat_stat (EV_P_ ev_stat *w) |
2628 | ev_stat_stat (EV_P_ ev_stat *w) |
1989 | { |
2629 | { |
… | |
… | |
2016 | || w->prev.st_atime != w->attr.st_atime |
2656 | || w->prev.st_atime != w->attr.st_atime |
2017 | || w->prev.st_mtime != w->attr.st_mtime |
2657 | || w->prev.st_mtime != w->attr.st_mtime |
2018 | || w->prev.st_ctime != w->attr.st_ctime |
2658 | || w->prev.st_ctime != w->attr.st_ctime |
2019 | ) { |
2659 | ) { |
2020 | #if EV_USE_INOTIFY |
2660 | #if EV_USE_INOTIFY |
|
|
2661 | if (fs_fd >= 0) |
|
|
2662 | { |
2021 | infy_del (EV_A_ w); |
2663 | infy_del (EV_A_ w); |
2022 | infy_add (EV_A_ w); |
2664 | infy_add (EV_A_ w); |
2023 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
2665 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
2666 | } |
2024 | #endif |
2667 | #endif |
2025 | |
2668 | |
2026 | ev_feed_event (EV_A_ w, EV_STAT); |
2669 | ev_feed_event (EV_A_ w, EV_STAT); |
2027 | } |
2670 | } |
2028 | } |
2671 | } |
… | |
… | |
2031 | ev_stat_start (EV_P_ ev_stat *w) |
2674 | ev_stat_start (EV_P_ ev_stat *w) |
2032 | { |
2675 | { |
2033 | if (expect_false (ev_is_active (w))) |
2676 | if (expect_false (ev_is_active (w))) |
2034 | return; |
2677 | return; |
2035 | |
2678 | |
2036 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2037 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2038 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2039 | |
|
|
2040 | ev_stat_stat (EV_A_ w); |
2679 | ev_stat_stat (EV_A_ w); |
2041 | |
2680 | |
|
|
2681 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
2042 | if (w->interval < MIN_STAT_INTERVAL) |
2682 | w->interval = MIN_STAT_INTERVAL; |
2043 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2044 | |
2683 | |
2045 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
2684 | ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL); |
2046 | ev_set_priority (&w->timer, ev_priority (w)); |
2685 | ev_set_priority (&w->timer, ev_priority (w)); |
2047 | |
2686 | |
2048 | #if EV_USE_INOTIFY |
2687 | #if EV_USE_INOTIFY |
2049 | infy_init (EV_A); |
2688 | infy_init (EV_A); |
2050 | |
2689 | |
2051 | if (fs_fd >= 0) |
2690 | if (fs_fd >= 0) |
2052 | infy_add (EV_A_ w); |
2691 | infy_add (EV_A_ w); |
2053 | else |
2692 | else |
2054 | #endif |
2693 | #endif |
2055 | ev_timer_start (EV_A_ &w->timer); |
2694 | ev_timer_again (EV_A_ &w->timer); |
2056 | |
2695 | |
2057 | ev_start (EV_A_ (W)w, 1); |
2696 | ev_start (EV_A_ (W)w, 1); |
|
|
2697 | |
|
|
2698 | EV_FREQUENT_CHECK; |
2058 | } |
2699 | } |
2059 | |
2700 | |
2060 | void |
2701 | void |
2061 | ev_stat_stop (EV_P_ ev_stat *w) |
2702 | ev_stat_stop (EV_P_ ev_stat *w) |
2062 | { |
2703 | { |
2063 | clear_pending (EV_A_ (W)w); |
2704 | clear_pending (EV_A_ (W)w); |
2064 | if (expect_false (!ev_is_active (w))) |
2705 | if (expect_false (!ev_is_active (w))) |
2065 | return; |
2706 | return; |
2066 | |
2707 | |
|
|
2708 | EV_FREQUENT_CHECK; |
|
|
2709 | |
2067 | #if EV_USE_INOTIFY |
2710 | #if EV_USE_INOTIFY |
2068 | infy_del (EV_A_ w); |
2711 | infy_del (EV_A_ w); |
2069 | #endif |
2712 | #endif |
2070 | ev_timer_stop (EV_A_ &w->timer); |
2713 | ev_timer_stop (EV_A_ &w->timer); |
2071 | |
2714 | |
2072 | ev_stop (EV_A_ (W)w); |
2715 | ev_stop (EV_A_ (W)w); |
|
|
2716 | |
|
|
2717 | EV_FREQUENT_CHECK; |
2073 | } |
2718 | } |
2074 | #endif |
2719 | #endif |
2075 | |
2720 | |
2076 | #if EV_IDLE_ENABLE |
2721 | #if EV_IDLE_ENABLE |
2077 | void |
2722 | void |
… | |
… | |
2079 | { |
2724 | { |
2080 | if (expect_false (ev_is_active (w))) |
2725 | if (expect_false (ev_is_active (w))) |
2081 | return; |
2726 | return; |
2082 | |
2727 | |
2083 | pri_adjust (EV_A_ (W)w); |
2728 | pri_adjust (EV_A_ (W)w); |
|
|
2729 | |
|
|
2730 | EV_FREQUENT_CHECK; |
2084 | |
2731 | |
2085 | { |
2732 | { |
2086 | int active = ++idlecnt [ABSPRI (w)]; |
2733 | int active = ++idlecnt [ABSPRI (w)]; |
2087 | |
2734 | |
2088 | ++idleall; |
2735 | ++idleall; |
2089 | ev_start (EV_A_ (W)w, active); |
2736 | ev_start (EV_A_ (W)w, active); |
2090 | |
2737 | |
2091 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
2738 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
2092 | idles [ABSPRI (w)][active - 1] = w; |
2739 | idles [ABSPRI (w)][active - 1] = w; |
2093 | } |
2740 | } |
|
|
2741 | |
|
|
2742 | EV_FREQUENT_CHECK; |
2094 | } |
2743 | } |
2095 | |
2744 | |
2096 | void |
2745 | void |
2097 | ev_idle_stop (EV_P_ ev_idle *w) |
2746 | ev_idle_stop (EV_P_ ev_idle *w) |
2098 | { |
2747 | { |
2099 | clear_pending (EV_A_ (W)w); |
2748 | clear_pending (EV_A_ (W)w); |
2100 | if (expect_false (!ev_is_active (w))) |
2749 | if (expect_false (!ev_is_active (w))) |
2101 | return; |
2750 | return; |
2102 | |
2751 | |
|
|
2752 | EV_FREQUENT_CHECK; |
|
|
2753 | |
2103 | { |
2754 | { |
2104 | int active = ((W)w)->active; |
2755 | int active = ev_active (w); |
2105 | |
2756 | |
2106 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2757 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2107 | ((W)idles [ABSPRI (w)][active - 1])->active = active; |
2758 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
2108 | |
2759 | |
2109 | ev_stop (EV_A_ (W)w); |
2760 | ev_stop (EV_A_ (W)w); |
2110 | --idleall; |
2761 | --idleall; |
2111 | } |
2762 | } |
|
|
2763 | |
|
|
2764 | EV_FREQUENT_CHECK; |
2112 | } |
2765 | } |
2113 | #endif |
2766 | #endif |
2114 | |
2767 | |
2115 | void |
2768 | void |
2116 | ev_prepare_start (EV_P_ ev_prepare *w) |
2769 | ev_prepare_start (EV_P_ ev_prepare *w) |
2117 | { |
2770 | { |
2118 | if (expect_false (ev_is_active (w))) |
2771 | if (expect_false (ev_is_active (w))) |
2119 | return; |
2772 | return; |
|
|
2773 | |
|
|
2774 | EV_FREQUENT_CHECK; |
2120 | |
2775 | |
2121 | ev_start (EV_A_ (W)w, ++preparecnt); |
2776 | ev_start (EV_A_ (W)w, ++preparecnt); |
2122 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
2777 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
2123 | prepares [preparecnt - 1] = w; |
2778 | prepares [preparecnt - 1] = w; |
|
|
2779 | |
|
|
2780 | EV_FREQUENT_CHECK; |
2124 | } |
2781 | } |
2125 | |
2782 | |
2126 | void |
2783 | void |
2127 | ev_prepare_stop (EV_P_ ev_prepare *w) |
2784 | ev_prepare_stop (EV_P_ ev_prepare *w) |
2128 | { |
2785 | { |
2129 | clear_pending (EV_A_ (W)w); |
2786 | clear_pending (EV_A_ (W)w); |
2130 | if (expect_false (!ev_is_active (w))) |
2787 | if (expect_false (!ev_is_active (w))) |
2131 | return; |
2788 | return; |
2132 | |
2789 | |
|
|
2790 | EV_FREQUENT_CHECK; |
|
|
2791 | |
2133 | { |
2792 | { |
2134 | int active = ((W)w)->active; |
2793 | int active = ev_active (w); |
|
|
2794 | |
2135 | prepares [active - 1] = prepares [--preparecnt]; |
2795 | prepares [active - 1] = prepares [--preparecnt]; |
2136 | ((W)prepares [active - 1])->active = active; |
2796 | ev_active (prepares [active - 1]) = active; |
2137 | } |
2797 | } |
2138 | |
2798 | |
2139 | ev_stop (EV_A_ (W)w); |
2799 | ev_stop (EV_A_ (W)w); |
|
|
2800 | |
|
|
2801 | EV_FREQUENT_CHECK; |
2140 | } |
2802 | } |
2141 | |
2803 | |
2142 | void |
2804 | void |
2143 | ev_check_start (EV_P_ ev_check *w) |
2805 | ev_check_start (EV_P_ ev_check *w) |
2144 | { |
2806 | { |
2145 | if (expect_false (ev_is_active (w))) |
2807 | if (expect_false (ev_is_active (w))) |
2146 | return; |
2808 | return; |
|
|
2809 | |
|
|
2810 | EV_FREQUENT_CHECK; |
2147 | |
2811 | |
2148 | ev_start (EV_A_ (W)w, ++checkcnt); |
2812 | ev_start (EV_A_ (W)w, ++checkcnt); |
2149 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
2813 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
2150 | checks [checkcnt - 1] = w; |
2814 | checks [checkcnt - 1] = w; |
|
|
2815 | |
|
|
2816 | EV_FREQUENT_CHECK; |
2151 | } |
2817 | } |
2152 | |
2818 | |
2153 | void |
2819 | void |
2154 | ev_check_stop (EV_P_ ev_check *w) |
2820 | ev_check_stop (EV_P_ ev_check *w) |
2155 | { |
2821 | { |
2156 | clear_pending (EV_A_ (W)w); |
2822 | clear_pending (EV_A_ (W)w); |
2157 | if (expect_false (!ev_is_active (w))) |
2823 | if (expect_false (!ev_is_active (w))) |
2158 | return; |
2824 | return; |
2159 | |
2825 | |
|
|
2826 | EV_FREQUENT_CHECK; |
|
|
2827 | |
2160 | { |
2828 | { |
2161 | int active = ((W)w)->active; |
2829 | int active = ev_active (w); |
|
|
2830 | |
2162 | checks [active - 1] = checks [--checkcnt]; |
2831 | checks [active - 1] = checks [--checkcnt]; |
2163 | ((W)checks [active - 1])->active = active; |
2832 | ev_active (checks [active - 1]) = active; |
2164 | } |
2833 | } |
2165 | |
2834 | |
2166 | ev_stop (EV_A_ (W)w); |
2835 | ev_stop (EV_A_ (W)w); |
|
|
2836 | |
|
|
2837 | EV_FREQUENT_CHECK; |
2167 | } |
2838 | } |
2168 | |
2839 | |
2169 | #if EV_EMBED_ENABLE |
2840 | #if EV_EMBED_ENABLE |
2170 | void noinline |
2841 | void noinline |
2171 | ev_embed_sweep (EV_P_ ev_embed *w) |
2842 | ev_embed_sweep (EV_P_ ev_embed *w) |
2172 | { |
2843 | { |
2173 | ev_loop (w->loop, EVLOOP_NONBLOCK); |
2844 | ev_loop (w->other, EVLOOP_NONBLOCK); |
2174 | } |
2845 | } |
2175 | |
2846 | |
2176 | static void |
2847 | static void |
2177 | embed_cb (EV_P_ ev_io *io, int revents) |
2848 | embed_io_cb (EV_P_ ev_io *io, int revents) |
2178 | { |
2849 | { |
2179 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
2850 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
2180 | |
2851 | |
2181 | if (ev_cb (w)) |
2852 | if (ev_cb (w)) |
2182 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2853 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2183 | else |
2854 | else |
2184 | ev_embed_sweep (loop, w); |
2855 | ev_loop (w->other, EVLOOP_NONBLOCK); |
2185 | } |
2856 | } |
|
|
2857 | |
|
|
2858 | static void |
|
|
2859 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
|
|
2860 | { |
|
|
2861 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
|
|
2862 | |
|
|
2863 | { |
|
|
2864 | struct ev_loop *loop = w->other; |
|
|
2865 | |
|
|
2866 | while (fdchangecnt) |
|
|
2867 | { |
|
|
2868 | fd_reify (EV_A); |
|
|
2869 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
2870 | } |
|
|
2871 | } |
|
|
2872 | } |
|
|
2873 | |
|
|
2874 | static void |
|
|
2875 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
|
|
2876 | { |
|
|
2877 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
|
|
2878 | |
|
|
2879 | { |
|
|
2880 | struct ev_loop *loop = w->other; |
|
|
2881 | |
|
|
2882 | ev_loop_fork (EV_A); |
|
|
2883 | } |
|
|
2884 | } |
|
|
2885 | |
|
|
2886 | #if 0 |
|
|
2887 | static void |
|
|
2888 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
|
|
2889 | { |
|
|
2890 | ev_idle_stop (EV_A_ idle); |
|
|
2891 | } |
|
|
2892 | #endif |
2186 | |
2893 | |
2187 | void |
2894 | void |
2188 | ev_embed_start (EV_P_ ev_embed *w) |
2895 | ev_embed_start (EV_P_ ev_embed *w) |
2189 | { |
2896 | { |
2190 | if (expect_false (ev_is_active (w))) |
2897 | if (expect_false (ev_is_active (w))) |
2191 | return; |
2898 | return; |
2192 | |
2899 | |
2193 | { |
2900 | { |
2194 | struct ev_loop *loop = w->loop; |
2901 | struct ev_loop *loop = w->other; |
2195 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2902 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2196 | ev_io_init (&w->io, embed_cb, backend_fd, EV_READ); |
2903 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2197 | } |
2904 | } |
|
|
2905 | |
|
|
2906 | EV_FREQUENT_CHECK; |
2198 | |
2907 | |
2199 | ev_set_priority (&w->io, ev_priority (w)); |
2908 | ev_set_priority (&w->io, ev_priority (w)); |
2200 | ev_io_start (EV_A_ &w->io); |
2909 | ev_io_start (EV_A_ &w->io); |
2201 | |
2910 | |
|
|
2911 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
|
|
2912 | ev_set_priority (&w->prepare, EV_MINPRI); |
|
|
2913 | ev_prepare_start (EV_A_ &w->prepare); |
|
|
2914 | |
|
|
2915 | ev_fork_init (&w->fork, embed_fork_cb); |
|
|
2916 | ev_fork_start (EV_A_ &w->fork); |
|
|
2917 | |
|
|
2918 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
|
|
2919 | |
2202 | ev_start (EV_A_ (W)w, 1); |
2920 | ev_start (EV_A_ (W)w, 1); |
|
|
2921 | |
|
|
2922 | EV_FREQUENT_CHECK; |
2203 | } |
2923 | } |
2204 | |
2924 | |
2205 | void |
2925 | void |
2206 | ev_embed_stop (EV_P_ ev_embed *w) |
2926 | ev_embed_stop (EV_P_ ev_embed *w) |
2207 | { |
2927 | { |
2208 | clear_pending (EV_A_ (W)w); |
2928 | clear_pending (EV_A_ (W)w); |
2209 | if (expect_false (!ev_is_active (w))) |
2929 | if (expect_false (!ev_is_active (w))) |
2210 | return; |
2930 | return; |
2211 | |
2931 | |
|
|
2932 | EV_FREQUENT_CHECK; |
|
|
2933 | |
2212 | ev_io_stop (EV_A_ &w->io); |
2934 | ev_io_stop (EV_A_ &w->io); |
|
|
2935 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
2936 | ev_fork_stop (EV_A_ &w->fork); |
2213 | |
2937 | |
2214 | ev_stop (EV_A_ (W)w); |
2938 | EV_FREQUENT_CHECK; |
2215 | } |
2939 | } |
2216 | #endif |
2940 | #endif |
2217 | |
2941 | |
2218 | #if EV_FORK_ENABLE |
2942 | #if EV_FORK_ENABLE |
2219 | void |
2943 | void |
2220 | ev_fork_start (EV_P_ ev_fork *w) |
2944 | ev_fork_start (EV_P_ ev_fork *w) |
2221 | { |
2945 | { |
2222 | if (expect_false (ev_is_active (w))) |
2946 | if (expect_false (ev_is_active (w))) |
2223 | return; |
2947 | return; |
|
|
2948 | |
|
|
2949 | EV_FREQUENT_CHECK; |
2224 | |
2950 | |
2225 | ev_start (EV_A_ (W)w, ++forkcnt); |
2951 | ev_start (EV_A_ (W)w, ++forkcnt); |
2226 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
2952 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
2227 | forks [forkcnt - 1] = w; |
2953 | forks [forkcnt - 1] = w; |
|
|
2954 | |
|
|
2955 | EV_FREQUENT_CHECK; |
2228 | } |
2956 | } |
2229 | |
2957 | |
2230 | void |
2958 | void |
2231 | ev_fork_stop (EV_P_ ev_fork *w) |
2959 | ev_fork_stop (EV_P_ ev_fork *w) |
2232 | { |
2960 | { |
2233 | clear_pending (EV_A_ (W)w); |
2961 | clear_pending (EV_A_ (W)w); |
2234 | if (expect_false (!ev_is_active (w))) |
2962 | if (expect_false (!ev_is_active (w))) |
2235 | return; |
2963 | return; |
2236 | |
2964 | |
|
|
2965 | EV_FREQUENT_CHECK; |
|
|
2966 | |
2237 | { |
2967 | { |
2238 | int active = ((W)w)->active; |
2968 | int active = ev_active (w); |
|
|
2969 | |
2239 | forks [active - 1] = forks [--forkcnt]; |
2970 | forks [active - 1] = forks [--forkcnt]; |
2240 | ((W)forks [active - 1])->active = active; |
2971 | ev_active (forks [active - 1]) = active; |
2241 | } |
2972 | } |
2242 | |
2973 | |
2243 | ev_stop (EV_A_ (W)w); |
2974 | ev_stop (EV_A_ (W)w); |
|
|
2975 | |
|
|
2976 | EV_FREQUENT_CHECK; |
|
|
2977 | } |
|
|
2978 | #endif |
|
|
2979 | |
|
|
2980 | #if EV_ASYNC_ENABLE |
|
|
2981 | void |
|
|
2982 | ev_async_start (EV_P_ ev_async *w) |
|
|
2983 | { |
|
|
2984 | if (expect_false (ev_is_active (w))) |
|
|
2985 | return; |
|
|
2986 | |
|
|
2987 | evpipe_init (EV_A); |
|
|
2988 | |
|
|
2989 | EV_FREQUENT_CHECK; |
|
|
2990 | |
|
|
2991 | ev_start (EV_A_ (W)w, ++asynccnt); |
|
|
2992 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
|
|
2993 | asyncs [asynccnt - 1] = w; |
|
|
2994 | |
|
|
2995 | EV_FREQUENT_CHECK; |
|
|
2996 | } |
|
|
2997 | |
|
|
2998 | void |
|
|
2999 | ev_async_stop (EV_P_ ev_async *w) |
|
|
3000 | { |
|
|
3001 | clear_pending (EV_A_ (W)w); |
|
|
3002 | if (expect_false (!ev_is_active (w))) |
|
|
3003 | return; |
|
|
3004 | |
|
|
3005 | EV_FREQUENT_CHECK; |
|
|
3006 | |
|
|
3007 | { |
|
|
3008 | int active = ev_active (w); |
|
|
3009 | |
|
|
3010 | asyncs [active - 1] = asyncs [--asynccnt]; |
|
|
3011 | ev_active (asyncs [active - 1]) = active; |
|
|
3012 | } |
|
|
3013 | |
|
|
3014 | ev_stop (EV_A_ (W)w); |
|
|
3015 | |
|
|
3016 | EV_FREQUENT_CHECK; |
|
|
3017 | } |
|
|
3018 | |
|
|
3019 | void |
|
|
3020 | ev_async_send (EV_P_ ev_async *w) |
|
|
3021 | { |
|
|
3022 | w->sent = 1; |
|
|
3023 | evpipe_write (EV_A_ &gotasync); |
2244 | } |
3024 | } |
2245 | #endif |
3025 | #endif |
2246 | |
3026 | |
2247 | /*****************************************************************************/ |
3027 | /*****************************************************************************/ |
2248 | |
3028 | |
… | |
… | |
2258 | once_cb (EV_P_ struct ev_once *once, int revents) |
3038 | once_cb (EV_P_ struct ev_once *once, int revents) |
2259 | { |
3039 | { |
2260 | void (*cb)(int revents, void *arg) = once->cb; |
3040 | void (*cb)(int revents, void *arg) = once->cb; |
2261 | void *arg = once->arg; |
3041 | void *arg = once->arg; |
2262 | |
3042 | |
2263 | ev_io_stop (EV_A_ &once->io); |
3043 | ev_io_stop (EV_A_ &once->io); |
2264 | ev_timer_stop (EV_A_ &once->to); |
3044 | ev_timer_stop (EV_A_ &once->to); |
2265 | ev_free (once); |
3045 | ev_free (once); |
2266 | |
3046 | |
2267 | cb (revents, arg); |
3047 | cb (revents, arg); |
2268 | } |
3048 | } |
2269 | |
3049 | |
2270 | static void |
3050 | static void |
2271 | once_cb_io (EV_P_ ev_io *w, int revents) |
3051 | once_cb_io (EV_P_ ev_io *w, int revents) |
2272 | { |
3052 | { |
2273 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
3053 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)); |
|
|
3054 | |
|
|
3055 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to)); |
2274 | } |
3056 | } |
2275 | |
3057 | |
2276 | static void |
3058 | static void |
2277 | once_cb_to (EV_P_ ev_timer *w, int revents) |
3059 | once_cb_to (EV_P_ ev_timer *w, int revents) |
2278 | { |
3060 | { |
2279 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
3061 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)); |
|
|
3062 | |
|
|
3063 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
2280 | } |
3064 | } |
2281 | |
3065 | |
2282 | void |
3066 | void |
2283 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
3067 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
2284 | { |
3068 | { |
… | |
… | |
2306 | ev_timer_set (&once->to, timeout, 0.); |
3090 | ev_timer_set (&once->to, timeout, 0.); |
2307 | ev_timer_start (EV_A_ &once->to); |
3091 | ev_timer_start (EV_A_ &once->to); |
2308 | } |
3092 | } |
2309 | } |
3093 | } |
2310 | |
3094 | |
|
|
3095 | #if EV_MULTIPLICITY |
|
|
3096 | #include "ev_wrap.h" |
|
|
3097 | #endif |
|
|
3098 | |
2311 | #ifdef __cplusplus |
3099 | #ifdef __cplusplus |
2312 | } |
3100 | } |
2313 | #endif |
3101 | #endif |
2314 | |
3102 | |