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 |
… | |
… | |
207 | #if !EV_STAT_ENABLE |
279 | #if !EV_STAT_ENABLE |
208 | # undef EV_USE_INOTIFY |
280 | # undef EV_USE_INOTIFY |
209 | # define EV_USE_INOTIFY 0 |
281 | # define EV_USE_INOTIFY 0 |
210 | #endif |
282 | #endif |
211 | |
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 | |
212 | #if EV_USE_INOTIFY |
290 | #if EV_USE_INOTIFY |
213 | # include <sys/inotify.h> |
291 | # include <sys/inotify.h> |
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292 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
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293 | # ifndef IN_DONT_FOLLOW |
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294 | # undef EV_USE_INOTIFY |
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295 | # define EV_USE_INOTIFY 0 |
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296 | # endif |
214 | #endif |
297 | #endif |
215 | |
298 | |
216 | #if EV_SELECT_IS_WINSOCKET |
299 | #if EV_SELECT_IS_WINSOCKET |
217 | # include <winsock.h> |
300 | # include <winsock.h> |
218 | #endif |
301 | #endif |
219 | |
302 | |
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303 | #if EV_USE_EVENTFD |
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304 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
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305 | # include <stdint.h> |
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306 | # ifdef __cplusplus |
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307 | extern "C" { |
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308 | # endif |
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309 | int eventfd (unsigned int initval, int flags); |
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310 | # ifdef __cplusplus |
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311 | } |
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312 | # endif |
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313 | #endif |
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314 | |
220 | /**/ |
315 | /**/ |
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316 | |
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317 | #if EV_VERIFY >= 3 |
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318 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
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319 | #else |
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320 | # define EV_FREQUENT_CHECK do { } while (0) |
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321 | #endif |
221 | |
322 | |
222 | /* |
323 | /* |
223 | * This is used to avoid floating point rounding problems. |
324 | * This is used to avoid floating point rounding problems. |
224 | * It is added to ev_rt_now when scheduling periodics |
325 | * It is added to ev_rt_now when scheduling periodics |
225 | * to ensure progress, time-wise, even when rounding |
326 | * to ensure progress, time-wise, even when rounding |
… | |
… | |
237 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
338 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
238 | # define noinline __attribute__ ((noinline)) |
339 | # define noinline __attribute__ ((noinline)) |
239 | #else |
340 | #else |
240 | # define expect(expr,value) (expr) |
341 | # define expect(expr,value) (expr) |
241 | # define noinline |
342 | # define noinline |
242 | # if __STDC_VERSION__ < 199901L |
343 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
243 | # define inline |
344 | # define inline |
244 | # endif |
345 | # endif |
245 | #endif |
346 | #endif |
246 | |
347 | |
247 | #define expect_false(expr) expect ((expr) != 0, 0) |
348 | #define expect_false(expr) expect ((expr) != 0, 0) |
… | |
… | |
262 | |
363 | |
263 | typedef ev_watcher *W; |
364 | typedef ev_watcher *W; |
264 | typedef ev_watcher_list *WL; |
365 | typedef ev_watcher_list *WL; |
265 | typedef ev_watcher_time *WT; |
366 | typedef ev_watcher_time *WT; |
266 | |
367 | |
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368 | #define ev_active(w) ((W)(w))->active |
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369 | #define ev_at(w) ((WT)(w))->at |
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370 | |
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371 | #if EV_USE_MONOTONIC |
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372 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
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373 | /* giving it a reasonably high chance of working on typical architetcures */ |
267 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
374 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
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375 | #endif |
268 | |
376 | |
269 | #ifdef _WIN32 |
377 | #ifdef _WIN32 |
270 | # include "ev_win32.c" |
378 | # include "ev_win32.c" |
271 | #endif |
379 | #endif |
272 | |
380 | |
… | |
… | |
293 | perror (msg); |
401 | perror (msg); |
294 | abort (); |
402 | abort (); |
295 | } |
403 | } |
296 | } |
404 | } |
297 | |
405 | |
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406 | static void * |
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407 | ev_realloc_emul (void *ptr, long size) |
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408 | { |
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409 | /* some systems, notably openbsd and darwin, fail to properly |
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410 | * implement realloc (x, 0) (as required by both ansi c-98 and |
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411 | * the single unix specification, so work around them here. |
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412 | */ |
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413 | |
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414 | if (size) |
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415 | return realloc (ptr, size); |
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416 | |
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417 | free (ptr); |
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418 | return 0; |
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419 | } |
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420 | |
298 | static void *(*alloc)(void *ptr, long size); |
421 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
299 | |
422 | |
300 | void |
423 | void |
301 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
424 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
302 | { |
425 | { |
303 | alloc = cb; |
426 | alloc = cb; |
304 | } |
427 | } |
305 | |
428 | |
306 | inline_speed void * |
429 | inline_speed void * |
307 | ev_realloc (void *ptr, long size) |
430 | ev_realloc (void *ptr, long size) |
308 | { |
431 | { |
309 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
432 | ptr = alloc (ptr, size); |
310 | |
433 | |
311 | if (!ptr && size) |
434 | if (!ptr && size) |
312 | { |
435 | { |
313 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
436 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
314 | abort (); |
437 | abort (); |
… | |
… | |
337 | W w; |
460 | W w; |
338 | int events; |
461 | int events; |
339 | } ANPENDING; |
462 | } ANPENDING; |
340 | |
463 | |
341 | #if EV_USE_INOTIFY |
464 | #if EV_USE_INOTIFY |
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465 | /* hash table entry per inotify-id */ |
342 | typedef struct |
466 | typedef struct |
343 | { |
467 | { |
344 | WL head; |
468 | WL head; |
345 | } ANFS; |
469 | } ANFS; |
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470 | #endif |
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471 | |
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472 | /* Heap Entry */ |
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473 | #if EV_HEAP_CACHE_AT |
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474 | typedef struct { |
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475 | ev_tstamp at; |
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476 | WT w; |
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477 | } ANHE; |
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478 | |
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479 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
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480 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
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481 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
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482 | #else |
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483 | typedef WT ANHE; |
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484 | |
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485 | #define ANHE_w(he) (he) |
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486 | #define ANHE_at(he) (he)->at |
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487 | #define ANHE_at_cache(he) |
346 | #endif |
488 | #endif |
347 | |
489 | |
348 | #if EV_MULTIPLICITY |
490 | #if EV_MULTIPLICITY |
349 | |
491 | |
350 | struct ev_loop |
492 | struct ev_loop |
… | |
… | |
408 | { |
550 | { |
409 | return ev_rt_now; |
551 | return ev_rt_now; |
410 | } |
552 | } |
411 | #endif |
553 | #endif |
412 | |
554 | |
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555 | void |
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556 | ev_sleep (ev_tstamp delay) |
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557 | { |
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558 | if (delay > 0.) |
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559 | { |
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560 | #if EV_USE_NANOSLEEP |
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561 | struct timespec ts; |
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562 | |
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563 | ts.tv_sec = (time_t)delay; |
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564 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
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565 | |
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566 | nanosleep (&ts, 0); |
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567 | #elif defined(_WIN32) |
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568 | Sleep ((unsigned long)(delay * 1e3)); |
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569 | #else |
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570 | struct timeval tv; |
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571 | |
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572 | tv.tv_sec = (time_t)delay; |
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573 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
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574 | |
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575 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
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576 | /* somehting nto guaranteed by newer posix versions, but guaranteed */ |
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577 | /* by older ones */ |
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578 | select (0, 0, 0, 0, &tv); |
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579 | #endif |
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580 | } |
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581 | } |
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582 | |
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583 | /*****************************************************************************/ |
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584 | |
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585 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
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586 | |
413 | int inline_size |
587 | int inline_size |
414 | array_nextsize (int elem, int cur, int cnt) |
588 | array_nextsize (int elem, int cur, int cnt) |
415 | { |
589 | { |
416 | int ncur = cur + 1; |
590 | int ncur = cur + 1; |
417 | |
591 | |
418 | do |
592 | do |
419 | ncur <<= 1; |
593 | ncur <<= 1; |
420 | while (cnt > ncur); |
594 | while (cnt > ncur); |
421 | |
595 | |
422 | /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */ |
596 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
423 | if (elem * ncur > 4096) |
597 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
424 | { |
598 | { |
425 | ncur *= elem; |
599 | ncur *= elem; |
426 | ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095; |
600 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
427 | ncur = ncur - sizeof (void *) * 4; |
601 | ncur = ncur - sizeof (void *) * 4; |
428 | ncur /= elem; |
602 | ncur /= elem; |
429 | } |
603 | } |
430 | |
604 | |
431 | return ncur; |
605 | return ncur; |
… | |
… | |
542 | events |= (unsigned char)w->events; |
716 | events |= (unsigned char)w->events; |
543 | |
717 | |
544 | #if EV_SELECT_IS_WINSOCKET |
718 | #if EV_SELECT_IS_WINSOCKET |
545 | if (events) |
719 | if (events) |
546 | { |
720 | { |
547 | unsigned long argp; |
721 | unsigned long arg; |
|
|
722 | #ifdef EV_FD_TO_WIN32_HANDLE |
|
|
723 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
724 | #else |
548 | anfd->handle = _get_osfhandle (fd); |
725 | anfd->handle = _get_osfhandle (fd); |
|
|
726 | #endif |
549 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
727 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
550 | } |
728 | } |
551 | #endif |
729 | #endif |
552 | |
730 | |
553 | { |
731 | { |
554 | unsigned char o_events = anfd->events; |
732 | unsigned char o_events = anfd->events; |
… | |
… | |
607 | { |
785 | { |
608 | int fd; |
786 | int fd; |
609 | |
787 | |
610 | for (fd = 0; fd < anfdmax; ++fd) |
788 | for (fd = 0; fd < anfdmax; ++fd) |
611 | if (anfds [fd].events) |
789 | if (anfds [fd].events) |
612 | if (!fd_valid (fd) == -1 && errno == EBADF) |
790 | if (!fd_valid (fd) && errno == EBADF) |
613 | fd_kill (EV_A_ fd); |
791 | fd_kill (EV_A_ fd); |
614 | } |
792 | } |
615 | |
793 | |
616 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
794 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
617 | static void noinline |
795 | static void noinline |
… | |
… | |
641 | } |
819 | } |
642 | } |
820 | } |
643 | |
821 | |
644 | /*****************************************************************************/ |
822 | /*****************************************************************************/ |
645 | |
823 | |
|
|
824 | /* |
|
|
825 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
|
|
826 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
|
|
827 | * the branching factor of the d-tree. |
|
|
828 | */ |
|
|
829 | |
|
|
830 | /* |
|
|
831 | * at the moment we allow libev the luxury of two heaps, |
|
|
832 | * a small-code-size 2-heap one and a ~1.5kb larger 4-heap |
|
|
833 | * which is more cache-efficient. |
|
|
834 | * the difference is about 5% with 50000+ watchers. |
|
|
835 | */ |
|
|
836 | #if EV_USE_4HEAP |
|
|
837 | |
|
|
838 | #define DHEAP 4 |
|
|
839 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
|
|
840 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
|
|
841 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
|
|
842 | |
|
|
843 | /* away from the root */ |
646 | void inline_speed |
844 | void inline_speed |
647 | upheap (WT *heap, int k) |
845 | downheap (ANHE *heap, int N, int k) |
648 | { |
846 | { |
649 | WT w = heap [k]; |
847 | ANHE he = heap [k]; |
|
|
848 | ANHE *E = heap + N + HEAP0; |
650 | |
849 | |
651 | while (k) |
850 | for (;;) |
652 | { |
851 | { |
653 | int p = (k - 1) >> 1; |
852 | ev_tstamp minat; |
|
|
853 | ANHE *minpos; |
|
|
854 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
654 | |
855 | |
655 | if (heap [p]->at <= w->at) |
856 | /* find minimum child */ |
|
|
857 | if (expect_true (pos + DHEAP - 1 < E)) |
|
|
858 | { |
|
|
859 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
860 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
861 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
862 | if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
863 | } |
|
|
864 | else if (pos < E) |
|
|
865 | { |
|
|
866 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
867 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
868 | if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
869 | if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
870 | } |
|
|
871 | else |
656 | break; |
872 | break; |
657 | |
873 | |
|
|
874 | if (ANHE_at (he) <= minat) |
|
|
875 | break; |
|
|
876 | |
|
|
877 | heap [k] = *minpos; |
|
|
878 | ev_active (ANHE_w (*minpos)) = k; |
|
|
879 | |
|
|
880 | k = minpos - heap; |
|
|
881 | } |
|
|
882 | |
|
|
883 | heap [k] = he; |
|
|
884 | ev_active (ANHE_w (he)) = k; |
|
|
885 | } |
|
|
886 | |
|
|
887 | #else /* 4HEAP */ |
|
|
888 | |
|
|
889 | #define HEAP0 1 |
|
|
890 | #define HPARENT(k) ((k) >> 1) |
|
|
891 | #define UPHEAP_DONE(p,k) (!(p)) |
|
|
892 | |
|
|
893 | /* away from the root */ |
|
|
894 | void inline_speed |
|
|
895 | downheap (ANHE *heap, int N, int k) |
|
|
896 | { |
|
|
897 | ANHE he = heap [k]; |
|
|
898 | |
|
|
899 | for (;;) |
|
|
900 | { |
|
|
901 | int c = k << 1; |
|
|
902 | |
|
|
903 | if (c > N + HEAP0 - 1) |
|
|
904 | break; |
|
|
905 | |
|
|
906 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
|
|
907 | ? 1 : 0; |
|
|
908 | |
|
|
909 | if (ANHE_at (he) <= ANHE_at (heap [c])) |
|
|
910 | break; |
|
|
911 | |
|
|
912 | heap [k] = heap [c]; |
|
|
913 | ev_active (ANHE_w (heap [k])) = k; |
|
|
914 | |
|
|
915 | k = c; |
|
|
916 | } |
|
|
917 | |
|
|
918 | heap [k] = he; |
|
|
919 | ev_active (ANHE_w (he)) = k; |
|
|
920 | } |
|
|
921 | #endif |
|
|
922 | |
|
|
923 | /* towards the root */ |
|
|
924 | void inline_speed |
|
|
925 | upheap (ANHE *heap, int k) |
|
|
926 | { |
|
|
927 | ANHE he = heap [k]; |
|
|
928 | |
|
|
929 | for (;;) |
|
|
930 | { |
|
|
931 | int p = HPARENT (k); |
|
|
932 | |
|
|
933 | if (UPHEAP_DONE (p, k) || ANHE_at (heap [p]) <= ANHE_at (he)) |
|
|
934 | break; |
|
|
935 | |
658 | heap [k] = heap [p]; |
936 | heap [k] = heap [p]; |
659 | ((W)heap [k])->active = k + 1; |
937 | ev_active (ANHE_w (heap [k])) = k; |
660 | k = p; |
938 | k = p; |
661 | } |
939 | } |
662 | |
940 | |
663 | heap [k] = w; |
941 | heap [k] = he; |
664 | ((W)heap [k])->active = k + 1; |
942 | ev_active (ANHE_w (he)) = k; |
665 | } |
|
|
666 | |
|
|
667 | void inline_speed |
|
|
668 | downheap (WT *heap, int N, int k) |
|
|
669 | { |
|
|
670 | WT w = heap [k]; |
|
|
671 | |
|
|
672 | for (;;) |
|
|
673 | { |
|
|
674 | int c = (k << 1) + 1; |
|
|
675 | |
|
|
676 | if (c >= N) |
|
|
677 | break; |
|
|
678 | |
|
|
679 | c += c + 1 < N && heap [c]->at > heap [c + 1]->at |
|
|
680 | ? 1 : 0; |
|
|
681 | |
|
|
682 | if (w->at <= heap [c]->at) |
|
|
683 | break; |
|
|
684 | |
|
|
685 | heap [k] = heap [c]; |
|
|
686 | ((W)heap [k])->active = k + 1; |
|
|
687 | |
|
|
688 | k = c; |
|
|
689 | } |
|
|
690 | |
|
|
691 | heap [k] = w; |
|
|
692 | ((W)heap [k])->active = k + 1; |
|
|
693 | } |
943 | } |
694 | |
944 | |
695 | void inline_size |
945 | void inline_size |
696 | adjustheap (WT *heap, int N, int k) |
946 | adjustheap (ANHE *heap, int N, int k) |
697 | { |
947 | { |
|
|
948 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
698 | upheap (heap, k); |
949 | upheap (heap, k); |
|
|
950 | else |
699 | downheap (heap, N, k); |
951 | downheap (heap, N, k); |
|
|
952 | } |
|
|
953 | |
|
|
954 | /* rebuild the heap: this function is used only once and executed rarely */ |
|
|
955 | void inline_size |
|
|
956 | reheap (ANHE *heap, int N) |
|
|
957 | { |
|
|
958 | int i; |
|
|
959 | |
|
|
960 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
|
|
961 | /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */ |
|
|
962 | for (i = 0; i < N; ++i) |
|
|
963 | upheap (heap, i + HEAP0); |
700 | } |
964 | } |
701 | |
965 | |
702 | /*****************************************************************************/ |
966 | /*****************************************************************************/ |
703 | |
967 | |
704 | typedef struct |
968 | typedef struct |
705 | { |
969 | { |
706 | WL head; |
970 | WL head; |
707 | sig_atomic_t volatile gotsig; |
971 | EV_ATOMIC_T gotsig; |
708 | } ANSIG; |
972 | } ANSIG; |
709 | |
973 | |
710 | static ANSIG *signals; |
974 | static ANSIG *signals; |
711 | static int signalmax; |
975 | static int signalmax; |
712 | |
976 | |
713 | static int sigpipe [2]; |
977 | static EV_ATOMIC_T gotsig; |
714 | static sig_atomic_t volatile gotsig; |
|
|
715 | static ev_io sigev; |
|
|
716 | |
978 | |
717 | void inline_size |
979 | void inline_size |
718 | signals_init (ANSIG *base, int count) |
980 | signals_init (ANSIG *base, int count) |
719 | { |
981 | { |
720 | while (count--) |
982 | while (count--) |
… | |
… | |
724 | |
986 | |
725 | ++base; |
987 | ++base; |
726 | } |
988 | } |
727 | } |
989 | } |
728 | |
990 | |
729 | static void |
991 | /*****************************************************************************/ |
730 | sighandler (int signum) |
|
|
731 | { |
|
|
732 | #if _WIN32 |
|
|
733 | signal (signum, sighandler); |
|
|
734 | #endif |
|
|
735 | |
|
|
736 | signals [signum - 1].gotsig = 1; |
|
|
737 | |
|
|
738 | if (!gotsig) |
|
|
739 | { |
|
|
740 | int old_errno = errno; |
|
|
741 | gotsig = 1; |
|
|
742 | write (sigpipe [1], &signum, 1); |
|
|
743 | errno = old_errno; |
|
|
744 | } |
|
|
745 | } |
|
|
746 | |
|
|
747 | void noinline |
|
|
748 | ev_feed_signal_event (EV_P_ int signum) |
|
|
749 | { |
|
|
750 | WL w; |
|
|
751 | |
|
|
752 | #if EV_MULTIPLICITY |
|
|
753 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
754 | #endif |
|
|
755 | |
|
|
756 | --signum; |
|
|
757 | |
|
|
758 | if (signum < 0 || signum >= signalmax) |
|
|
759 | return; |
|
|
760 | |
|
|
761 | signals [signum].gotsig = 0; |
|
|
762 | |
|
|
763 | for (w = signals [signum].head; w; w = w->next) |
|
|
764 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
765 | } |
|
|
766 | |
|
|
767 | static void |
|
|
768 | sigcb (EV_P_ ev_io *iow, int revents) |
|
|
769 | { |
|
|
770 | int signum; |
|
|
771 | |
|
|
772 | read (sigpipe [0], &revents, 1); |
|
|
773 | gotsig = 0; |
|
|
774 | |
|
|
775 | for (signum = signalmax; signum--; ) |
|
|
776 | if (signals [signum].gotsig) |
|
|
777 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
778 | } |
|
|
779 | |
992 | |
780 | void inline_speed |
993 | void inline_speed |
781 | fd_intern (int fd) |
994 | fd_intern (int fd) |
782 | { |
995 | { |
783 | #ifdef _WIN32 |
996 | #ifdef _WIN32 |
784 | int arg = 1; |
997 | unsigned long arg = 1; |
785 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
998 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
786 | #else |
999 | #else |
787 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
1000 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
788 | fcntl (fd, F_SETFL, O_NONBLOCK); |
1001 | fcntl (fd, F_SETFL, O_NONBLOCK); |
789 | #endif |
1002 | #endif |
790 | } |
1003 | } |
791 | |
1004 | |
792 | static void noinline |
1005 | static void noinline |
793 | siginit (EV_P) |
1006 | evpipe_init (EV_P) |
794 | { |
1007 | { |
|
|
1008 | if (!ev_is_active (&pipeev)) |
|
|
1009 | { |
|
|
1010 | #if EV_USE_EVENTFD |
|
|
1011 | if ((evfd = eventfd (0, 0)) >= 0) |
|
|
1012 | { |
|
|
1013 | evpipe [0] = -1; |
|
|
1014 | fd_intern (evfd); |
|
|
1015 | ev_io_set (&pipeev, evfd, EV_READ); |
|
|
1016 | } |
|
|
1017 | else |
|
|
1018 | #endif |
|
|
1019 | { |
|
|
1020 | while (pipe (evpipe)) |
|
|
1021 | syserr ("(libev) error creating signal/async pipe"); |
|
|
1022 | |
795 | fd_intern (sigpipe [0]); |
1023 | fd_intern (evpipe [0]); |
796 | fd_intern (sigpipe [1]); |
1024 | fd_intern (evpipe [1]); |
|
|
1025 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
|
|
1026 | } |
797 | |
1027 | |
798 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
|
|
799 | ev_io_start (EV_A_ &sigev); |
1028 | ev_io_start (EV_A_ &pipeev); |
800 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1029 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
1030 | } |
|
|
1031 | } |
|
|
1032 | |
|
|
1033 | void inline_size |
|
|
1034 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1035 | { |
|
|
1036 | if (!*flag) |
|
|
1037 | { |
|
|
1038 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1039 | |
|
|
1040 | *flag = 1; |
|
|
1041 | |
|
|
1042 | #if EV_USE_EVENTFD |
|
|
1043 | if (evfd >= 0) |
|
|
1044 | { |
|
|
1045 | uint64_t counter = 1; |
|
|
1046 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
1047 | } |
|
|
1048 | else |
|
|
1049 | #endif |
|
|
1050 | write (evpipe [1], &old_errno, 1); |
|
|
1051 | |
|
|
1052 | errno = old_errno; |
|
|
1053 | } |
|
|
1054 | } |
|
|
1055 | |
|
|
1056 | static void |
|
|
1057 | pipecb (EV_P_ ev_io *iow, int revents) |
|
|
1058 | { |
|
|
1059 | #if EV_USE_EVENTFD |
|
|
1060 | if (evfd >= 0) |
|
|
1061 | { |
|
|
1062 | uint64_t counter; |
|
|
1063 | read (evfd, &counter, sizeof (uint64_t)); |
|
|
1064 | } |
|
|
1065 | else |
|
|
1066 | #endif |
|
|
1067 | { |
|
|
1068 | char dummy; |
|
|
1069 | read (evpipe [0], &dummy, 1); |
|
|
1070 | } |
|
|
1071 | |
|
|
1072 | if (gotsig && ev_is_default_loop (EV_A)) |
|
|
1073 | { |
|
|
1074 | int signum; |
|
|
1075 | gotsig = 0; |
|
|
1076 | |
|
|
1077 | for (signum = signalmax; signum--; ) |
|
|
1078 | if (signals [signum].gotsig) |
|
|
1079 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
1080 | } |
|
|
1081 | |
|
|
1082 | #if EV_ASYNC_ENABLE |
|
|
1083 | if (gotasync) |
|
|
1084 | { |
|
|
1085 | int i; |
|
|
1086 | gotasync = 0; |
|
|
1087 | |
|
|
1088 | for (i = asynccnt; i--; ) |
|
|
1089 | if (asyncs [i]->sent) |
|
|
1090 | { |
|
|
1091 | asyncs [i]->sent = 0; |
|
|
1092 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
|
|
1093 | } |
|
|
1094 | } |
|
|
1095 | #endif |
801 | } |
1096 | } |
802 | |
1097 | |
803 | /*****************************************************************************/ |
1098 | /*****************************************************************************/ |
804 | |
1099 | |
|
|
1100 | static void |
|
|
1101 | ev_sighandler (int signum) |
|
|
1102 | { |
|
|
1103 | #if EV_MULTIPLICITY |
|
|
1104 | struct ev_loop *loop = &default_loop_struct; |
|
|
1105 | #endif |
|
|
1106 | |
|
|
1107 | #if _WIN32 |
|
|
1108 | signal (signum, ev_sighandler); |
|
|
1109 | #endif |
|
|
1110 | |
|
|
1111 | signals [signum - 1].gotsig = 1; |
|
|
1112 | evpipe_write (EV_A_ &gotsig); |
|
|
1113 | } |
|
|
1114 | |
|
|
1115 | void noinline |
|
|
1116 | ev_feed_signal_event (EV_P_ int signum) |
|
|
1117 | { |
|
|
1118 | WL w; |
|
|
1119 | |
|
|
1120 | #if EV_MULTIPLICITY |
|
|
1121 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1122 | #endif |
|
|
1123 | |
|
|
1124 | --signum; |
|
|
1125 | |
|
|
1126 | if (signum < 0 || signum >= signalmax) |
|
|
1127 | return; |
|
|
1128 | |
|
|
1129 | signals [signum].gotsig = 0; |
|
|
1130 | |
|
|
1131 | for (w = signals [signum].head; w; w = w->next) |
|
|
1132 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
1133 | } |
|
|
1134 | |
|
|
1135 | /*****************************************************************************/ |
|
|
1136 | |
805 | static WL childs [EV_PID_HASHSIZE]; |
1137 | static WL childs [EV_PID_HASHSIZE]; |
806 | |
1138 | |
807 | #ifndef _WIN32 |
1139 | #ifndef _WIN32 |
808 | |
1140 | |
809 | static ev_signal childev; |
1141 | static ev_signal childev; |
810 | |
1142 | |
|
|
1143 | #ifndef WIFCONTINUED |
|
|
1144 | # define WIFCONTINUED(status) 0 |
|
|
1145 | #endif |
|
|
1146 | |
811 | void inline_speed |
1147 | void inline_speed |
812 | child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) |
1148 | child_reap (EV_P_ int chain, int pid, int status) |
813 | { |
1149 | { |
814 | ev_child *w; |
1150 | ev_child *w; |
|
|
1151 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
815 | |
1152 | |
816 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1153 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1154 | { |
817 | if (w->pid == pid || !w->pid) |
1155 | if ((w->pid == pid || !w->pid) |
|
|
1156 | && (!traced || (w->flags & 1))) |
818 | { |
1157 | { |
819 | ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */ |
1158 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
820 | w->rpid = pid; |
1159 | w->rpid = pid; |
821 | w->rstatus = status; |
1160 | w->rstatus = status; |
822 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
1161 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
823 | } |
1162 | } |
|
|
1163 | } |
824 | } |
1164 | } |
825 | |
1165 | |
826 | #ifndef WCONTINUED |
1166 | #ifndef WCONTINUED |
827 | # define WCONTINUED 0 |
1167 | # define WCONTINUED 0 |
828 | #endif |
1168 | #endif |
… | |
… | |
837 | if (!WCONTINUED |
1177 | if (!WCONTINUED |
838 | || errno != EINVAL |
1178 | || errno != EINVAL |
839 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
1179 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
840 | return; |
1180 | return; |
841 | |
1181 | |
842 | /* make sure we are called again until all childs have been reaped */ |
1182 | /* make sure we are called again until all children have been reaped */ |
843 | /* we need to do it this way so that the callback gets called before we continue */ |
1183 | /* we need to do it this way so that the callback gets called before we continue */ |
844 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1184 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
845 | |
1185 | |
846 | child_reap (EV_A_ sw, pid, pid, status); |
1186 | child_reap (EV_A_ pid, pid, status); |
847 | if (EV_PID_HASHSIZE > 1) |
1187 | if (EV_PID_HASHSIZE > 1) |
848 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1188 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
849 | } |
1189 | } |
850 | |
1190 | |
851 | #endif |
1191 | #endif |
852 | |
1192 | |
853 | /*****************************************************************************/ |
1193 | /*****************************************************************************/ |
… | |
… | |
925 | } |
1265 | } |
926 | |
1266 | |
927 | unsigned int |
1267 | unsigned int |
928 | ev_embeddable_backends (void) |
1268 | ev_embeddable_backends (void) |
929 | { |
1269 | { |
|
|
1270 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
|
|
1271 | |
930 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1272 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
931 | return EVBACKEND_KQUEUE |
1273 | /* please fix it and tell me how to detect the fix */ |
932 | | EVBACKEND_PORT; |
1274 | flags &= ~EVBACKEND_EPOLL; |
|
|
1275 | |
|
|
1276 | return flags; |
933 | } |
1277 | } |
934 | |
1278 | |
935 | unsigned int |
1279 | unsigned int |
936 | ev_backend (EV_P) |
1280 | ev_backend (EV_P) |
937 | { |
1281 | { |
… | |
… | |
940 | |
1284 | |
941 | unsigned int |
1285 | unsigned int |
942 | ev_loop_count (EV_P) |
1286 | ev_loop_count (EV_P) |
943 | { |
1287 | { |
944 | return loop_count; |
1288 | return loop_count; |
|
|
1289 | } |
|
|
1290 | |
|
|
1291 | void |
|
|
1292 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1293 | { |
|
|
1294 | io_blocktime = interval; |
|
|
1295 | } |
|
|
1296 | |
|
|
1297 | void |
|
|
1298 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1299 | { |
|
|
1300 | timeout_blocktime = interval; |
945 | } |
1301 | } |
946 | |
1302 | |
947 | static void noinline |
1303 | static void noinline |
948 | loop_init (EV_P_ unsigned int flags) |
1304 | loop_init (EV_P_ unsigned int flags) |
949 | { |
1305 | { |
… | |
… | |
955 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1311 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
956 | have_monotonic = 1; |
1312 | have_monotonic = 1; |
957 | } |
1313 | } |
958 | #endif |
1314 | #endif |
959 | |
1315 | |
960 | ev_rt_now = ev_time (); |
1316 | ev_rt_now = ev_time (); |
961 | mn_now = get_clock (); |
1317 | mn_now = get_clock (); |
962 | now_floor = mn_now; |
1318 | now_floor = mn_now; |
963 | rtmn_diff = ev_rt_now - mn_now; |
1319 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1320 | |
|
|
1321 | io_blocktime = 0.; |
|
|
1322 | timeout_blocktime = 0.; |
|
|
1323 | backend = 0; |
|
|
1324 | backend_fd = -1; |
|
|
1325 | gotasync = 0; |
|
|
1326 | #if EV_USE_INOTIFY |
|
|
1327 | fs_fd = -2; |
|
|
1328 | #endif |
964 | |
1329 | |
965 | /* pid check not overridable via env */ |
1330 | /* pid check not overridable via env */ |
966 | #ifndef _WIN32 |
1331 | #ifndef _WIN32 |
967 | if (flags & EVFLAG_FORKCHECK) |
1332 | if (flags & EVFLAG_FORKCHECK) |
968 | curpid = getpid (); |
1333 | curpid = getpid (); |
… | |
… | |
971 | if (!(flags & EVFLAG_NOENV) |
1336 | if (!(flags & EVFLAG_NOENV) |
972 | && !enable_secure () |
1337 | && !enable_secure () |
973 | && getenv ("LIBEV_FLAGS")) |
1338 | && getenv ("LIBEV_FLAGS")) |
974 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1339 | flags = atoi (getenv ("LIBEV_FLAGS")); |
975 | |
1340 | |
976 | if (!(flags & 0x0000ffffUL)) |
1341 | if (!(flags & 0x0000ffffU)) |
977 | flags |= ev_recommended_backends (); |
1342 | flags |= ev_recommended_backends (); |
978 | |
|
|
979 | backend = 0; |
|
|
980 | backend_fd = -1; |
|
|
981 | #if EV_USE_INOTIFY |
|
|
982 | fs_fd = -2; |
|
|
983 | #endif |
|
|
984 | |
1343 | |
985 | #if EV_USE_PORT |
1344 | #if EV_USE_PORT |
986 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1345 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
987 | #endif |
1346 | #endif |
988 | #if EV_USE_KQUEUE |
1347 | #if EV_USE_KQUEUE |
… | |
… | |
996 | #endif |
1355 | #endif |
997 | #if EV_USE_SELECT |
1356 | #if EV_USE_SELECT |
998 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1357 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
999 | #endif |
1358 | #endif |
1000 | |
1359 | |
1001 | ev_init (&sigev, sigcb); |
1360 | ev_init (&pipeev, pipecb); |
1002 | ev_set_priority (&sigev, EV_MAXPRI); |
1361 | ev_set_priority (&pipeev, EV_MAXPRI); |
1003 | } |
1362 | } |
1004 | } |
1363 | } |
1005 | |
1364 | |
1006 | static void noinline |
1365 | static void noinline |
1007 | loop_destroy (EV_P) |
1366 | loop_destroy (EV_P) |
1008 | { |
1367 | { |
1009 | int i; |
1368 | int i; |
|
|
1369 | |
|
|
1370 | if (ev_is_active (&pipeev)) |
|
|
1371 | { |
|
|
1372 | ev_ref (EV_A); /* signal watcher */ |
|
|
1373 | ev_io_stop (EV_A_ &pipeev); |
|
|
1374 | |
|
|
1375 | #if EV_USE_EVENTFD |
|
|
1376 | if (evfd >= 0) |
|
|
1377 | close (evfd); |
|
|
1378 | #endif |
|
|
1379 | |
|
|
1380 | if (evpipe [0] >= 0) |
|
|
1381 | { |
|
|
1382 | close (evpipe [0]); |
|
|
1383 | close (evpipe [1]); |
|
|
1384 | } |
|
|
1385 | } |
1010 | |
1386 | |
1011 | #if EV_USE_INOTIFY |
1387 | #if EV_USE_INOTIFY |
1012 | if (fs_fd >= 0) |
1388 | if (fs_fd >= 0) |
1013 | close (fs_fd); |
1389 | close (fs_fd); |
1014 | #endif |
1390 | #endif |
… | |
… | |
1051 | #if EV_FORK_ENABLE |
1427 | #if EV_FORK_ENABLE |
1052 | array_free (fork, EMPTY); |
1428 | array_free (fork, EMPTY); |
1053 | #endif |
1429 | #endif |
1054 | array_free (prepare, EMPTY); |
1430 | array_free (prepare, EMPTY); |
1055 | array_free (check, EMPTY); |
1431 | array_free (check, EMPTY); |
|
|
1432 | #if EV_ASYNC_ENABLE |
|
|
1433 | array_free (async, EMPTY); |
|
|
1434 | #endif |
1056 | |
1435 | |
1057 | backend = 0; |
1436 | backend = 0; |
1058 | } |
1437 | } |
1059 | |
1438 | |
|
|
1439 | #if EV_USE_INOTIFY |
1060 | void inline_size infy_fork (EV_P); |
1440 | void inline_size infy_fork (EV_P); |
|
|
1441 | #endif |
1061 | |
1442 | |
1062 | void inline_size |
1443 | void inline_size |
1063 | loop_fork (EV_P) |
1444 | loop_fork (EV_P) |
1064 | { |
1445 | { |
1065 | #if EV_USE_PORT |
1446 | #if EV_USE_PORT |
… | |
… | |
1073 | #endif |
1454 | #endif |
1074 | #if EV_USE_INOTIFY |
1455 | #if EV_USE_INOTIFY |
1075 | infy_fork (EV_A); |
1456 | infy_fork (EV_A); |
1076 | #endif |
1457 | #endif |
1077 | |
1458 | |
1078 | if (ev_is_active (&sigev)) |
1459 | if (ev_is_active (&pipeev)) |
1079 | { |
1460 | { |
1080 | /* default loop */ |
1461 | /* this "locks" the handlers against writing to the pipe */ |
|
|
1462 | /* while we modify the fd vars */ |
|
|
1463 | gotsig = 1; |
|
|
1464 | #if EV_ASYNC_ENABLE |
|
|
1465 | gotasync = 1; |
|
|
1466 | #endif |
1081 | |
1467 | |
1082 | ev_ref (EV_A); |
1468 | ev_ref (EV_A); |
1083 | ev_io_stop (EV_A_ &sigev); |
1469 | ev_io_stop (EV_A_ &pipeev); |
|
|
1470 | |
|
|
1471 | #if EV_USE_EVENTFD |
|
|
1472 | if (evfd >= 0) |
|
|
1473 | close (evfd); |
|
|
1474 | #endif |
|
|
1475 | |
|
|
1476 | if (evpipe [0] >= 0) |
|
|
1477 | { |
1084 | close (sigpipe [0]); |
1478 | close (evpipe [0]); |
1085 | close (sigpipe [1]); |
1479 | close (evpipe [1]); |
|
|
1480 | } |
1086 | |
1481 | |
1087 | while (pipe (sigpipe)) |
|
|
1088 | syserr ("(libev) error creating pipe"); |
|
|
1089 | |
|
|
1090 | siginit (EV_A); |
1482 | evpipe_init (EV_A); |
|
|
1483 | /* now iterate over everything, in case we missed something */ |
|
|
1484 | pipecb (EV_A_ &pipeev, EV_READ); |
1091 | } |
1485 | } |
1092 | |
1486 | |
1093 | postfork = 0; |
1487 | postfork = 0; |
1094 | } |
1488 | } |
1095 | |
1489 | |
1096 | #if EV_MULTIPLICITY |
1490 | #if EV_MULTIPLICITY |
|
|
1491 | |
1097 | struct ev_loop * |
1492 | struct ev_loop * |
1098 | ev_loop_new (unsigned int flags) |
1493 | ev_loop_new (unsigned int flags) |
1099 | { |
1494 | { |
1100 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1495 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1101 | |
1496 | |
… | |
… | |
1117 | } |
1512 | } |
1118 | |
1513 | |
1119 | void |
1514 | void |
1120 | ev_loop_fork (EV_P) |
1515 | ev_loop_fork (EV_P) |
1121 | { |
1516 | { |
1122 | postfork = 1; |
1517 | postfork = 1; /* must be in line with ev_default_fork */ |
1123 | } |
1518 | } |
1124 | |
1519 | |
|
|
1520 | #if EV_VERIFY |
|
|
1521 | static void noinline |
|
|
1522 | verify_watcher (EV_P_ W w) |
|
|
1523 | { |
|
|
1524 | assert (("watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
|
|
1525 | |
|
|
1526 | if (w->pending) |
|
|
1527 | assert (("pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
|
|
1528 | } |
|
|
1529 | |
|
|
1530 | static void noinline |
|
|
1531 | verify_heap (EV_P_ ANHE *heap, int N) |
|
|
1532 | { |
|
|
1533 | int i; |
|
|
1534 | |
|
|
1535 | for (i = HEAP0; i < N + HEAP0; ++i) |
|
|
1536 | { |
|
|
1537 | assert (("active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
|
|
1538 | assert (("heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
|
|
1539 | assert (("heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
|
|
1540 | |
|
|
1541 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
|
|
1542 | } |
|
|
1543 | } |
|
|
1544 | |
|
|
1545 | static void noinline |
|
|
1546 | array_verify (EV_P_ W *ws, int cnt) |
|
|
1547 | { |
|
|
1548 | while (cnt--) |
|
|
1549 | { |
|
|
1550 | assert (("active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
|
|
1551 | verify_watcher (EV_A_ ws [cnt]); |
|
|
1552 | } |
|
|
1553 | } |
|
|
1554 | #endif |
|
|
1555 | |
|
|
1556 | void |
|
|
1557 | ev_loop_verify (EV_P) |
|
|
1558 | { |
|
|
1559 | #if EV_VERIFY |
|
|
1560 | int i; |
|
|
1561 | WL w; |
|
|
1562 | |
|
|
1563 | assert (activecnt >= -1); |
|
|
1564 | |
|
|
1565 | assert (fdchangemax >= fdchangecnt); |
|
|
1566 | for (i = 0; i < fdchangecnt; ++i) |
|
|
1567 | assert (("negative fd in fdchanges", fdchanges [i] >= 0)); |
|
|
1568 | |
|
|
1569 | assert (anfdmax >= 0); |
|
|
1570 | for (i = 0; i < anfdmax; ++i) |
|
|
1571 | for (w = anfds [i].head; w; w = w->next) |
|
|
1572 | { |
|
|
1573 | verify_watcher (EV_A_ (W)w); |
|
|
1574 | assert (("inactive fd watcher on anfd list", ev_active (w) == 1)); |
|
|
1575 | assert (("fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
|
|
1576 | } |
|
|
1577 | |
|
|
1578 | assert (timermax >= timercnt); |
|
|
1579 | verify_heap (EV_A_ timers, timercnt); |
|
|
1580 | |
|
|
1581 | #if EV_PERIODIC_ENABLE |
|
|
1582 | assert (periodicmax >= periodiccnt); |
|
|
1583 | verify_heap (EV_A_ periodics, periodiccnt); |
|
|
1584 | #endif |
|
|
1585 | |
|
|
1586 | for (i = NUMPRI; i--; ) |
|
|
1587 | { |
|
|
1588 | assert (pendingmax [i] >= pendingcnt [i]); |
|
|
1589 | #if EV_IDLE_ENABLE |
|
|
1590 | assert (idleall >= 0); |
|
|
1591 | assert (idlemax [i] >= idlecnt [i]); |
|
|
1592 | array_verify (EV_A_ (W *)idles [i], idlecnt [i]); |
|
|
1593 | #endif |
|
|
1594 | } |
|
|
1595 | |
|
|
1596 | #if EV_FORK_ENABLE |
|
|
1597 | assert (forkmax >= forkcnt); |
|
|
1598 | array_verify (EV_A_ (W *)forks, forkcnt); |
|
|
1599 | #endif |
|
|
1600 | |
|
|
1601 | #if EV_ASYNC_ENABLE |
|
|
1602 | assert (asyncmax >= asynccnt); |
|
|
1603 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
|
|
1604 | #endif |
|
|
1605 | |
|
|
1606 | assert (preparemax >= preparecnt); |
|
|
1607 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
1608 | |
|
|
1609 | assert (checkmax >= checkcnt); |
|
|
1610 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
1611 | |
|
|
1612 | # if 0 |
|
|
1613 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1614 | for (signum = signalmax; signum--; ) if (signals [signum].gotsig) |
1125 | #endif |
1615 | # endif |
|
|
1616 | #endif |
|
|
1617 | } |
|
|
1618 | |
|
|
1619 | #endif /* multiplicity */ |
1126 | |
1620 | |
1127 | #if EV_MULTIPLICITY |
1621 | #if EV_MULTIPLICITY |
1128 | struct ev_loop * |
1622 | struct ev_loop * |
1129 | ev_default_loop_init (unsigned int flags) |
1623 | ev_default_loop_init (unsigned int flags) |
1130 | #else |
1624 | #else |
1131 | int |
1625 | int |
1132 | ev_default_loop (unsigned int flags) |
1626 | ev_default_loop (unsigned int flags) |
1133 | #endif |
1627 | #endif |
1134 | { |
1628 | { |
1135 | if (sigpipe [0] == sigpipe [1]) |
|
|
1136 | if (pipe (sigpipe)) |
|
|
1137 | return 0; |
|
|
1138 | |
|
|
1139 | if (!ev_default_loop_ptr) |
1629 | if (!ev_default_loop_ptr) |
1140 | { |
1630 | { |
1141 | #if EV_MULTIPLICITY |
1631 | #if EV_MULTIPLICITY |
1142 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1632 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1143 | #else |
1633 | #else |
… | |
… | |
1146 | |
1636 | |
1147 | loop_init (EV_A_ flags); |
1637 | loop_init (EV_A_ flags); |
1148 | |
1638 | |
1149 | if (ev_backend (EV_A)) |
1639 | if (ev_backend (EV_A)) |
1150 | { |
1640 | { |
1151 | siginit (EV_A); |
|
|
1152 | |
|
|
1153 | #ifndef _WIN32 |
1641 | #ifndef _WIN32 |
1154 | ev_signal_init (&childev, childcb, SIGCHLD); |
1642 | ev_signal_init (&childev, childcb, SIGCHLD); |
1155 | ev_set_priority (&childev, EV_MAXPRI); |
1643 | ev_set_priority (&childev, EV_MAXPRI); |
1156 | ev_signal_start (EV_A_ &childev); |
1644 | ev_signal_start (EV_A_ &childev); |
1157 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1645 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
… | |
… | |
1174 | #ifndef _WIN32 |
1662 | #ifndef _WIN32 |
1175 | ev_ref (EV_A); /* child watcher */ |
1663 | ev_ref (EV_A); /* child watcher */ |
1176 | ev_signal_stop (EV_A_ &childev); |
1664 | ev_signal_stop (EV_A_ &childev); |
1177 | #endif |
1665 | #endif |
1178 | |
1666 | |
1179 | ev_ref (EV_A); /* signal watcher */ |
|
|
1180 | ev_io_stop (EV_A_ &sigev); |
|
|
1181 | |
|
|
1182 | close (sigpipe [0]); sigpipe [0] = 0; |
|
|
1183 | close (sigpipe [1]); sigpipe [1] = 0; |
|
|
1184 | |
|
|
1185 | loop_destroy (EV_A); |
1667 | loop_destroy (EV_A); |
1186 | } |
1668 | } |
1187 | |
1669 | |
1188 | void |
1670 | void |
1189 | ev_default_fork (void) |
1671 | ev_default_fork (void) |
… | |
… | |
1191 | #if EV_MULTIPLICITY |
1673 | #if EV_MULTIPLICITY |
1192 | struct ev_loop *loop = ev_default_loop_ptr; |
1674 | struct ev_loop *loop = ev_default_loop_ptr; |
1193 | #endif |
1675 | #endif |
1194 | |
1676 | |
1195 | if (backend) |
1677 | if (backend) |
1196 | postfork = 1; |
1678 | postfork = 1; /* must be in line with ev_loop_fork */ |
1197 | } |
1679 | } |
1198 | |
1680 | |
1199 | /*****************************************************************************/ |
1681 | /*****************************************************************************/ |
1200 | |
1682 | |
1201 | void |
1683 | void |
… | |
… | |
1218 | { |
1700 | { |
1219 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
1701 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
1220 | |
1702 | |
1221 | p->w->pending = 0; |
1703 | p->w->pending = 0; |
1222 | EV_CB_INVOKE (p->w, p->events); |
1704 | EV_CB_INVOKE (p->w, p->events); |
|
|
1705 | EV_FREQUENT_CHECK; |
1223 | } |
1706 | } |
1224 | } |
1707 | } |
1225 | } |
1708 | } |
1226 | |
|
|
1227 | void inline_size |
|
|
1228 | timers_reify (EV_P) |
|
|
1229 | { |
|
|
1230 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
|
|
1231 | { |
|
|
1232 | ev_timer *w = (ev_timer *)timers [0]; |
|
|
1233 | |
|
|
1234 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1235 | |
|
|
1236 | /* first reschedule or stop timer */ |
|
|
1237 | if (w->repeat) |
|
|
1238 | { |
|
|
1239 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1240 | |
|
|
1241 | ((WT)w)->at += w->repeat; |
|
|
1242 | if (((WT)w)->at < mn_now) |
|
|
1243 | ((WT)w)->at = mn_now; |
|
|
1244 | |
|
|
1245 | downheap (timers, timercnt, 0); |
|
|
1246 | } |
|
|
1247 | else |
|
|
1248 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1249 | |
|
|
1250 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
|
|
1251 | } |
|
|
1252 | } |
|
|
1253 | |
|
|
1254 | #if EV_PERIODIC_ENABLE |
|
|
1255 | void inline_size |
|
|
1256 | periodics_reify (EV_P) |
|
|
1257 | { |
|
|
1258 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
|
|
1259 | { |
|
|
1260 | ev_periodic *w = (ev_periodic *)periodics [0]; |
|
|
1261 | |
|
|
1262 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
1263 | |
|
|
1264 | /* first reschedule or stop timer */ |
|
|
1265 | if (w->reschedule_cb) |
|
|
1266 | { |
|
|
1267 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); |
|
|
1268 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
|
|
1269 | downheap (periodics, periodiccnt, 0); |
|
|
1270 | } |
|
|
1271 | else if (w->interval) |
|
|
1272 | { |
|
|
1273 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1274 | if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval; |
|
|
1275 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
|
|
1276 | downheap (periodics, periodiccnt, 0); |
|
|
1277 | } |
|
|
1278 | else |
|
|
1279 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1280 | |
|
|
1281 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
|
|
1282 | } |
|
|
1283 | } |
|
|
1284 | |
|
|
1285 | static void noinline |
|
|
1286 | periodics_reschedule (EV_P) |
|
|
1287 | { |
|
|
1288 | int i; |
|
|
1289 | |
|
|
1290 | /* adjust periodics after time jump */ |
|
|
1291 | for (i = 0; i < periodiccnt; ++i) |
|
|
1292 | { |
|
|
1293 | ev_periodic *w = (ev_periodic *)periodics [i]; |
|
|
1294 | |
|
|
1295 | if (w->reschedule_cb) |
|
|
1296 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
|
|
1297 | else if (w->interval) |
|
|
1298 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1299 | } |
|
|
1300 | |
|
|
1301 | /* now rebuild the heap */ |
|
|
1302 | for (i = periodiccnt >> 1; i--; ) |
|
|
1303 | downheap (periodics, periodiccnt, i); |
|
|
1304 | } |
|
|
1305 | #endif |
|
|
1306 | |
1709 | |
1307 | #if EV_IDLE_ENABLE |
1710 | #if EV_IDLE_ENABLE |
1308 | void inline_size |
1711 | void inline_size |
1309 | idle_reify (EV_P) |
1712 | idle_reify (EV_P) |
1310 | { |
1713 | { |
… | |
… | |
1322 | queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE); |
1725 | queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE); |
1323 | break; |
1726 | break; |
1324 | } |
1727 | } |
1325 | } |
1728 | } |
1326 | } |
1729 | } |
|
|
1730 | } |
|
|
1731 | #endif |
|
|
1732 | |
|
|
1733 | void inline_size |
|
|
1734 | timers_reify (EV_P) |
|
|
1735 | { |
|
|
1736 | EV_FREQUENT_CHECK; |
|
|
1737 | |
|
|
1738 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
|
|
1739 | { |
|
|
1740 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
|
|
1741 | |
|
|
1742 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1743 | |
|
|
1744 | /* first reschedule or stop timer */ |
|
|
1745 | if (w->repeat) |
|
|
1746 | { |
|
|
1747 | ev_at (w) += w->repeat; |
|
|
1748 | if (ev_at (w) < mn_now) |
|
|
1749 | ev_at (w) = mn_now; |
|
|
1750 | |
|
|
1751 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1752 | |
|
|
1753 | ANHE_at_cache (timers [HEAP0]); |
|
|
1754 | downheap (timers, timercnt, HEAP0); |
|
|
1755 | } |
|
|
1756 | else |
|
|
1757 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1758 | |
|
|
1759 | EV_FREQUENT_CHECK; |
|
|
1760 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
|
|
1761 | } |
|
|
1762 | } |
|
|
1763 | |
|
|
1764 | #if EV_PERIODIC_ENABLE |
|
|
1765 | void inline_size |
|
|
1766 | periodics_reify (EV_P) |
|
|
1767 | { |
|
|
1768 | EV_FREQUENT_CHECK; |
|
|
1769 | |
|
|
1770 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
|
|
1771 | { |
|
|
1772 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
|
|
1773 | |
|
|
1774 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
1775 | |
|
|
1776 | /* first reschedule or stop timer */ |
|
|
1777 | if (w->reschedule_cb) |
|
|
1778 | { |
|
|
1779 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
1780 | |
|
|
1781 | assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
|
|
1782 | |
|
|
1783 | ANHE_at_cache (periodics [HEAP0]); |
|
|
1784 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1785 | } |
|
|
1786 | else if (w->interval) |
|
|
1787 | { |
|
|
1788 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1789 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
1790 | /* this might happen because of floating point inexactness */ |
|
|
1791 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
1792 | { |
|
|
1793 | ev_at (w) += w->interval; |
|
|
1794 | |
|
|
1795 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
1796 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
1797 | /* has effectively asked to get triggered more often than possible */ |
|
|
1798 | if (ev_at (w) < ev_rt_now) |
|
|
1799 | ev_at (w) = ev_rt_now; |
|
|
1800 | } |
|
|
1801 | |
|
|
1802 | ANHE_at_cache (periodics [HEAP0]); |
|
|
1803 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1804 | } |
|
|
1805 | else |
|
|
1806 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1807 | |
|
|
1808 | EV_FREQUENT_CHECK; |
|
|
1809 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
|
|
1810 | } |
|
|
1811 | } |
|
|
1812 | |
|
|
1813 | static void noinline |
|
|
1814 | periodics_reschedule (EV_P) |
|
|
1815 | { |
|
|
1816 | int i; |
|
|
1817 | |
|
|
1818 | /* adjust periodics after time jump */ |
|
|
1819 | for (i = HEAP0; i < periodiccnt + HEAP0; ++i) |
|
|
1820 | { |
|
|
1821 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
|
|
1822 | |
|
|
1823 | if (w->reschedule_cb) |
|
|
1824 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
1825 | else if (w->interval) |
|
|
1826 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1827 | |
|
|
1828 | ANHE_at_cache (periodics [i]); |
|
|
1829 | } |
|
|
1830 | |
|
|
1831 | reheap (periodics, periodiccnt); |
1327 | } |
1832 | } |
1328 | #endif |
1833 | #endif |
1329 | |
1834 | |
1330 | void inline_speed |
1835 | void inline_speed |
1331 | time_update (EV_P_ ev_tstamp max_block) |
1836 | time_update (EV_P_ ev_tstamp max_block) |
… | |
… | |
1360 | */ |
1865 | */ |
1361 | for (i = 4; --i; ) |
1866 | for (i = 4; --i; ) |
1362 | { |
1867 | { |
1363 | rtmn_diff = ev_rt_now - mn_now; |
1868 | rtmn_diff = ev_rt_now - mn_now; |
1364 | |
1869 | |
1365 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1870 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
1366 | return; /* all is well */ |
1871 | return; /* all is well */ |
1367 | |
1872 | |
1368 | ev_rt_now = ev_time (); |
1873 | ev_rt_now = ev_time (); |
1369 | mn_now = get_clock (); |
1874 | mn_now = get_clock (); |
1370 | now_floor = mn_now; |
1875 | now_floor = mn_now; |
… | |
… | |
1386 | #if EV_PERIODIC_ENABLE |
1891 | #if EV_PERIODIC_ENABLE |
1387 | periodics_reschedule (EV_A); |
1892 | periodics_reschedule (EV_A); |
1388 | #endif |
1893 | #endif |
1389 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
1894 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
1390 | for (i = 0; i < timercnt; ++i) |
1895 | for (i = 0; i < timercnt; ++i) |
|
|
1896 | { |
|
|
1897 | ANHE *he = timers + i + HEAP0; |
1391 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
1898 | ANHE_w (*he)->at += ev_rt_now - mn_now; |
|
|
1899 | ANHE_at_cache (*he); |
|
|
1900 | } |
1392 | } |
1901 | } |
1393 | |
1902 | |
1394 | mn_now = ev_rt_now; |
1903 | mn_now = ev_rt_now; |
1395 | } |
1904 | } |
1396 | } |
1905 | } |
… | |
… | |
1405 | ev_unref (EV_P) |
1914 | ev_unref (EV_P) |
1406 | { |
1915 | { |
1407 | --activecnt; |
1916 | --activecnt; |
1408 | } |
1917 | } |
1409 | |
1918 | |
|
|
1919 | void |
|
|
1920 | ev_now_update (EV_P) |
|
|
1921 | { |
|
|
1922 | time_update (EV_A_ 1e100); |
|
|
1923 | } |
|
|
1924 | |
1410 | static int loop_done; |
1925 | static int loop_done; |
1411 | |
1926 | |
1412 | void |
1927 | void |
1413 | ev_loop (EV_P_ int flags) |
1928 | ev_loop (EV_P_ int flags) |
1414 | { |
1929 | { |
1415 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) |
1930 | loop_done = EVUNLOOP_CANCEL; |
1416 | ? EVUNLOOP_ONE |
|
|
1417 | : EVUNLOOP_CANCEL; |
|
|
1418 | |
1931 | |
1419 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
1932 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
1420 | |
1933 | |
1421 | do |
1934 | do |
1422 | { |
1935 | { |
|
|
1936 | #if EV_VERIFY >= 2 |
|
|
1937 | ev_loop_verify (EV_A); |
|
|
1938 | #endif |
|
|
1939 | |
1423 | #ifndef _WIN32 |
1940 | #ifndef _WIN32 |
1424 | if (expect_false (curpid)) /* penalise the forking check even more */ |
1941 | if (expect_false (curpid)) /* penalise the forking check even more */ |
1425 | if (expect_false (getpid () != curpid)) |
1942 | if (expect_false (getpid () != curpid)) |
1426 | { |
1943 | { |
1427 | curpid = getpid (); |
1944 | curpid = getpid (); |
… | |
… | |
1456 | /* update fd-related kernel structures */ |
1973 | /* update fd-related kernel structures */ |
1457 | fd_reify (EV_A); |
1974 | fd_reify (EV_A); |
1458 | |
1975 | |
1459 | /* calculate blocking time */ |
1976 | /* calculate blocking time */ |
1460 | { |
1977 | { |
1461 | ev_tstamp block; |
1978 | ev_tstamp waittime = 0.; |
|
|
1979 | ev_tstamp sleeptime = 0.; |
1462 | |
1980 | |
1463 | if (expect_false (flags & EVLOOP_NONBLOCK || idleall || !activecnt)) |
1981 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
1464 | block = 0.; /* do not block at all */ |
|
|
1465 | else |
|
|
1466 | { |
1982 | { |
1467 | /* update time to cancel out callback processing overhead */ |
1983 | /* update time to cancel out callback processing overhead */ |
1468 | time_update (EV_A_ 1e100); |
1984 | time_update (EV_A_ 1e100); |
1469 | |
1985 | |
1470 | block = MAX_BLOCKTIME; |
1986 | waittime = MAX_BLOCKTIME; |
1471 | |
1987 | |
1472 | if (timercnt) |
1988 | if (timercnt) |
1473 | { |
1989 | { |
1474 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
1990 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
1475 | if (block > to) block = to; |
1991 | if (waittime > to) waittime = to; |
1476 | } |
1992 | } |
1477 | |
1993 | |
1478 | #if EV_PERIODIC_ENABLE |
1994 | #if EV_PERIODIC_ENABLE |
1479 | if (periodiccnt) |
1995 | if (periodiccnt) |
1480 | { |
1996 | { |
1481 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
1997 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
1482 | if (block > to) block = to; |
1998 | if (waittime > to) waittime = to; |
1483 | } |
1999 | } |
1484 | #endif |
2000 | #endif |
1485 | |
2001 | |
1486 | if (expect_false (block < 0.)) block = 0.; |
2002 | if (expect_false (waittime < timeout_blocktime)) |
|
|
2003 | waittime = timeout_blocktime; |
|
|
2004 | |
|
|
2005 | sleeptime = waittime - backend_fudge; |
|
|
2006 | |
|
|
2007 | if (expect_true (sleeptime > io_blocktime)) |
|
|
2008 | sleeptime = io_blocktime; |
|
|
2009 | |
|
|
2010 | if (sleeptime) |
|
|
2011 | { |
|
|
2012 | ev_sleep (sleeptime); |
|
|
2013 | waittime -= sleeptime; |
|
|
2014 | } |
1487 | } |
2015 | } |
1488 | |
2016 | |
1489 | ++loop_count; |
2017 | ++loop_count; |
1490 | backend_poll (EV_A_ block); |
2018 | backend_poll (EV_A_ waittime); |
1491 | |
2019 | |
1492 | /* update ev_rt_now, do magic */ |
2020 | /* update ev_rt_now, do magic */ |
1493 | time_update (EV_A_ block); |
2021 | time_update (EV_A_ waittime + sleeptime); |
1494 | } |
2022 | } |
1495 | |
2023 | |
1496 | /* queue pending timers and reschedule them */ |
2024 | /* queue pending timers and reschedule them */ |
1497 | timers_reify (EV_A); /* relative timers called last */ |
2025 | timers_reify (EV_A); /* relative timers called last */ |
1498 | #if EV_PERIODIC_ENABLE |
2026 | #if EV_PERIODIC_ENABLE |
… | |
… | |
1507 | /* queue check watchers, to be executed first */ |
2035 | /* queue check watchers, to be executed first */ |
1508 | if (expect_false (checkcnt)) |
2036 | if (expect_false (checkcnt)) |
1509 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2037 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1510 | |
2038 | |
1511 | call_pending (EV_A); |
2039 | call_pending (EV_A); |
1512 | |
|
|
1513 | } |
2040 | } |
1514 | while (expect_true (activecnt && !loop_done)); |
2041 | while (expect_true ( |
|
|
2042 | activecnt |
|
|
2043 | && !loop_done |
|
|
2044 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
|
|
2045 | )); |
1515 | |
2046 | |
1516 | if (loop_done == EVUNLOOP_ONE) |
2047 | if (loop_done == EVUNLOOP_ONE) |
1517 | loop_done = EVUNLOOP_CANCEL; |
2048 | loop_done = EVUNLOOP_CANCEL; |
1518 | } |
2049 | } |
1519 | |
2050 | |
… | |
… | |
1608 | if (expect_false (ev_is_active (w))) |
2139 | if (expect_false (ev_is_active (w))) |
1609 | return; |
2140 | return; |
1610 | |
2141 | |
1611 | assert (("ev_io_start called with negative fd", fd >= 0)); |
2142 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1612 | |
2143 | |
|
|
2144 | EV_FREQUENT_CHECK; |
|
|
2145 | |
1613 | ev_start (EV_A_ (W)w, 1); |
2146 | ev_start (EV_A_ (W)w, 1); |
1614 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
2147 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
1615 | wlist_add (&anfds[fd].head, (WL)w); |
2148 | wlist_add (&anfds[fd].head, (WL)w); |
1616 | |
2149 | |
1617 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
2150 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
1618 | w->events &= ~EV_IOFDSET; |
2151 | w->events &= ~EV_IOFDSET; |
|
|
2152 | |
|
|
2153 | EV_FREQUENT_CHECK; |
1619 | } |
2154 | } |
1620 | |
2155 | |
1621 | void noinline |
2156 | void noinline |
1622 | ev_io_stop (EV_P_ ev_io *w) |
2157 | ev_io_stop (EV_P_ ev_io *w) |
1623 | { |
2158 | { |
1624 | clear_pending (EV_A_ (W)w); |
2159 | clear_pending (EV_A_ (W)w); |
1625 | if (expect_false (!ev_is_active (w))) |
2160 | if (expect_false (!ev_is_active (w))) |
1626 | return; |
2161 | return; |
1627 | |
2162 | |
1628 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2163 | assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
|
|
2164 | |
|
|
2165 | EV_FREQUENT_CHECK; |
1629 | |
2166 | |
1630 | wlist_del (&anfds[w->fd].head, (WL)w); |
2167 | wlist_del (&anfds[w->fd].head, (WL)w); |
1631 | ev_stop (EV_A_ (W)w); |
2168 | ev_stop (EV_A_ (W)w); |
1632 | |
2169 | |
1633 | fd_change (EV_A_ w->fd, 1); |
2170 | fd_change (EV_A_ w->fd, 1); |
|
|
2171 | |
|
|
2172 | EV_FREQUENT_CHECK; |
1634 | } |
2173 | } |
1635 | |
2174 | |
1636 | void noinline |
2175 | void noinline |
1637 | ev_timer_start (EV_P_ ev_timer *w) |
2176 | ev_timer_start (EV_P_ ev_timer *w) |
1638 | { |
2177 | { |
1639 | if (expect_false (ev_is_active (w))) |
2178 | if (expect_false (ev_is_active (w))) |
1640 | return; |
2179 | return; |
1641 | |
2180 | |
1642 | ((WT)w)->at += mn_now; |
2181 | ev_at (w) += mn_now; |
1643 | |
2182 | |
1644 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2183 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1645 | |
2184 | |
|
|
2185 | EV_FREQUENT_CHECK; |
|
|
2186 | |
|
|
2187 | ++timercnt; |
1646 | ev_start (EV_A_ (W)w, ++timercnt); |
2188 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
1647 | array_needsize (WT, timers, timermax, timercnt, EMPTY2); |
2189 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
1648 | timers [timercnt - 1] = (WT)w; |
2190 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
1649 | upheap (timers, timercnt - 1); |
2191 | ANHE_at_cache (timers [ev_active (w)]); |
|
|
2192 | upheap (timers, ev_active (w)); |
1650 | |
2193 | |
|
|
2194 | EV_FREQUENT_CHECK; |
|
|
2195 | |
1651 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
2196 | /*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
1652 | } |
2197 | } |
1653 | |
2198 | |
1654 | void noinline |
2199 | void noinline |
1655 | ev_timer_stop (EV_P_ ev_timer *w) |
2200 | ev_timer_stop (EV_P_ ev_timer *w) |
1656 | { |
2201 | { |
1657 | clear_pending (EV_A_ (W)w); |
2202 | clear_pending (EV_A_ (W)w); |
1658 | if (expect_false (!ev_is_active (w))) |
2203 | if (expect_false (!ev_is_active (w))) |
1659 | return; |
2204 | return; |
1660 | |
2205 | |
1661 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w)); |
2206 | EV_FREQUENT_CHECK; |
1662 | |
2207 | |
1663 | { |
2208 | { |
1664 | int active = ((W)w)->active; |
2209 | int active = ev_active (w); |
1665 | |
2210 | |
|
|
2211 | assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
|
|
2212 | |
|
|
2213 | --timercnt; |
|
|
2214 | |
1666 | if (expect_true (--active < --timercnt)) |
2215 | if (expect_true (active < timercnt + HEAP0)) |
1667 | { |
2216 | { |
1668 | timers [active] = timers [timercnt]; |
2217 | timers [active] = timers [timercnt + HEAP0]; |
1669 | adjustheap (timers, timercnt, active); |
2218 | adjustheap (timers, timercnt, active); |
1670 | } |
2219 | } |
1671 | } |
2220 | } |
1672 | |
2221 | |
1673 | ((WT)w)->at -= mn_now; |
2222 | EV_FREQUENT_CHECK; |
|
|
2223 | |
|
|
2224 | ev_at (w) -= mn_now; |
1674 | |
2225 | |
1675 | ev_stop (EV_A_ (W)w); |
2226 | ev_stop (EV_A_ (W)w); |
1676 | } |
2227 | } |
1677 | |
2228 | |
1678 | void noinline |
2229 | void noinline |
1679 | ev_timer_again (EV_P_ ev_timer *w) |
2230 | ev_timer_again (EV_P_ ev_timer *w) |
1680 | { |
2231 | { |
|
|
2232 | EV_FREQUENT_CHECK; |
|
|
2233 | |
1681 | if (ev_is_active (w)) |
2234 | if (ev_is_active (w)) |
1682 | { |
2235 | { |
1683 | if (w->repeat) |
2236 | if (w->repeat) |
1684 | { |
2237 | { |
1685 | ((WT)w)->at = mn_now + w->repeat; |
2238 | ev_at (w) = mn_now + w->repeat; |
|
|
2239 | ANHE_at_cache (timers [ev_active (w)]); |
1686 | adjustheap (timers, timercnt, ((W)w)->active - 1); |
2240 | adjustheap (timers, timercnt, ev_active (w)); |
1687 | } |
2241 | } |
1688 | else |
2242 | else |
1689 | ev_timer_stop (EV_A_ w); |
2243 | ev_timer_stop (EV_A_ w); |
1690 | } |
2244 | } |
1691 | else if (w->repeat) |
2245 | else if (w->repeat) |
1692 | { |
2246 | { |
1693 | w->at = w->repeat; |
2247 | ev_at (w) = w->repeat; |
1694 | ev_timer_start (EV_A_ w); |
2248 | ev_timer_start (EV_A_ w); |
1695 | } |
2249 | } |
|
|
2250 | |
|
|
2251 | EV_FREQUENT_CHECK; |
1696 | } |
2252 | } |
1697 | |
2253 | |
1698 | #if EV_PERIODIC_ENABLE |
2254 | #if EV_PERIODIC_ENABLE |
1699 | void noinline |
2255 | void noinline |
1700 | ev_periodic_start (EV_P_ ev_periodic *w) |
2256 | ev_periodic_start (EV_P_ ev_periodic *w) |
1701 | { |
2257 | { |
1702 | if (expect_false (ev_is_active (w))) |
2258 | if (expect_false (ev_is_active (w))) |
1703 | return; |
2259 | return; |
1704 | |
2260 | |
1705 | if (w->reschedule_cb) |
2261 | if (w->reschedule_cb) |
1706 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
2262 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1707 | else if (w->interval) |
2263 | else if (w->interval) |
1708 | { |
2264 | { |
1709 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2265 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1710 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2266 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1711 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2267 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1712 | } |
2268 | } |
1713 | else |
2269 | else |
1714 | ((WT)w)->at = w->offset; |
2270 | ev_at (w) = w->offset; |
1715 | |
2271 | |
|
|
2272 | EV_FREQUENT_CHECK; |
|
|
2273 | |
|
|
2274 | ++periodiccnt; |
1716 | ev_start (EV_A_ (W)w, ++periodiccnt); |
2275 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
1717 | array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2); |
2276 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
1718 | periodics [periodiccnt - 1] = (WT)w; |
2277 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
1719 | upheap (periodics, periodiccnt - 1); |
2278 | ANHE_at_cache (periodics [ev_active (w)]); |
|
|
2279 | upheap (periodics, ev_active (w)); |
1720 | |
2280 | |
|
|
2281 | EV_FREQUENT_CHECK; |
|
|
2282 | |
1721 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
2283 | /*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
1722 | } |
2284 | } |
1723 | |
2285 | |
1724 | void noinline |
2286 | void noinline |
1725 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2287 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1726 | { |
2288 | { |
1727 | clear_pending (EV_A_ (W)w); |
2289 | clear_pending (EV_A_ (W)w); |
1728 | if (expect_false (!ev_is_active (w))) |
2290 | if (expect_false (!ev_is_active (w))) |
1729 | return; |
2291 | return; |
1730 | |
2292 | |
1731 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w)); |
2293 | EV_FREQUENT_CHECK; |
1732 | |
2294 | |
1733 | { |
2295 | { |
1734 | int active = ((W)w)->active; |
2296 | int active = ev_active (w); |
1735 | |
2297 | |
|
|
2298 | assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
|
|
2299 | |
|
|
2300 | --periodiccnt; |
|
|
2301 | |
1736 | if (expect_true (--active < --periodiccnt)) |
2302 | if (expect_true (active < periodiccnt + HEAP0)) |
1737 | { |
2303 | { |
1738 | periodics [active] = periodics [periodiccnt]; |
2304 | periodics [active] = periodics [periodiccnt + HEAP0]; |
1739 | adjustheap (periodics, periodiccnt, active); |
2305 | adjustheap (periodics, periodiccnt, active); |
1740 | } |
2306 | } |
1741 | } |
2307 | } |
1742 | |
2308 | |
|
|
2309 | EV_FREQUENT_CHECK; |
|
|
2310 | |
1743 | ev_stop (EV_A_ (W)w); |
2311 | ev_stop (EV_A_ (W)w); |
1744 | } |
2312 | } |
1745 | |
2313 | |
1746 | void noinline |
2314 | void noinline |
1747 | ev_periodic_again (EV_P_ ev_periodic *w) |
2315 | ev_periodic_again (EV_P_ ev_periodic *w) |
… | |
… | |
1764 | #endif |
2332 | #endif |
1765 | if (expect_false (ev_is_active (w))) |
2333 | if (expect_false (ev_is_active (w))) |
1766 | return; |
2334 | return; |
1767 | |
2335 | |
1768 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2336 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
|
|
2337 | |
|
|
2338 | evpipe_init (EV_A); |
|
|
2339 | |
|
|
2340 | EV_FREQUENT_CHECK; |
1769 | |
2341 | |
1770 | { |
2342 | { |
1771 | #ifndef _WIN32 |
2343 | #ifndef _WIN32 |
1772 | sigset_t full, prev; |
2344 | sigset_t full, prev; |
1773 | sigfillset (&full); |
2345 | sigfillset (&full); |
… | |
… | |
1785 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2357 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
1786 | |
2358 | |
1787 | if (!((WL)w)->next) |
2359 | if (!((WL)w)->next) |
1788 | { |
2360 | { |
1789 | #if _WIN32 |
2361 | #if _WIN32 |
1790 | signal (w->signum, sighandler); |
2362 | signal (w->signum, ev_sighandler); |
1791 | #else |
2363 | #else |
1792 | struct sigaction sa; |
2364 | struct sigaction sa; |
1793 | sa.sa_handler = sighandler; |
2365 | sa.sa_handler = ev_sighandler; |
1794 | sigfillset (&sa.sa_mask); |
2366 | sigfillset (&sa.sa_mask); |
1795 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2367 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1796 | sigaction (w->signum, &sa, 0); |
2368 | sigaction (w->signum, &sa, 0); |
1797 | #endif |
2369 | #endif |
1798 | } |
2370 | } |
|
|
2371 | |
|
|
2372 | EV_FREQUENT_CHECK; |
1799 | } |
2373 | } |
1800 | |
2374 | |
1801 | void noinline |
2375 | void noinline |
1802 | ev_signal_stop (EV_P_ ev_signal *w) |
2376 | ev_signal_stop (EV_P_ ev_signal *w) |
1803 | { |
2377 | { |
1804 | clear_pending (EV_A_ (W)w); |
2378 | clear_pending (EV_A_ (W)w); |
1805 | if (expect_false (!ev_is_active (w))) |
2379 | if (expect_false (!ev_is_active (w))) |
1806 | return; |
2380 | return; |
1807 | |
2381 | |
|
|
2382 | EV_FREQUENT_CHECK; |
|
|
2383 | |
1808 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2384 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
1809 | ev_stop (EV_A_ (W)w); |
2385 | ev_stop (EV_A_ (W)w); |
1810 | |
2386 | |
1811 | if (!signals [w->signum - 1].head) |
2387 | if (!signals [w->signum - 1].head) |
1812 | signal (w->signum, SIG_DFL); |
2388 | signal (w->signum, SIG_DFL); |
|
|
2389 | |
|
|
2390 | EV_FREQUENT_CHECK; |
1813 | } |
2391 | } |
1814 | |
2392 | |
1815 | void |
2393 | void |
1816 | ev_child_start (EV_P_ ev_child *w) |
2394 | ev_child_start (EV_P_ ev_child *w) |
1817 | { |
2395 | { |
… | |
… | |
1819 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2397 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1820 | #endif |
2398 | #endif |
1821 | if (expect_false (ev_is_active (w))) |
2399 | if (expect_false (ev_is_active (w))) |
1822 | return; |
2400 | return; |
1823 | |
2401 | |
|
|
2402 | EV_FREQUENT_CHECK; |
|
|
2403 | |
1824 | ev_start (EV_A_ (W)w, 1); |
2404 | ev_start (EV_A_ (W)w, 1); |
1825 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2405 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
|
|
2406 | |
|
|
2407 | EV_FREQUENT_CHECK; |
1826 | } |
2408 | } |
1827 | |
2409 | |
1828 | void |
2410 | void |
1829 | ev_child_stop (EV_P_ ev_child *w) |
2411 | ev_child_stop (EV_P_ ev_child *w) |
1830 | { |
2412 | { |
1831 | clear_pending (EV_A_ (W)w); |
2413 | clear_pending (EV_A_ (W)w); |
1832 | if (expect_false (!ev_is_active (w))) |
2414 | if (expect_false (!ev_is_active (w))) |
1833 | return; |
2415 | return; |
1834 | |
2416 | |
|
|
2417 | EV_FREQUENT_CHECK; |
|
|
2418 | |
1835 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2419 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1836 | ev_stop (EV_A_ (W)w); |
2420 | ev_stop (EV_A_ (W)w); |
|
|
2421 | |
|
|
2422 | EV_FREQUENT_CHECK; |
1837 | } |
2423 | } |
1838 | |
2424 | |
1839 | #if EV_STAT_ENABLE |
2425 | #if EV_STAT_ENABLE |
1840 | |
2426 | |
1841 | # ifdef _WIN32 |
2427 | # ifdef _WIN32 |
… | |
… | |
1859 | if (w->wd < 0) |
2445 | if (w->wd < 0) |
1860 | { |
2446 | { |
1861 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2447 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
1862 | |
2448 | |
1863 | /* monitor some parent directory for speedup hints */ |
2449 | /* monitor some parent directory for speedup hints */ |
|
|
2450 | /* note that exceeding the hardcoded limit is not a correctness issue, */ |
|
|
2451 | /* but an efficiency issue only */ |
1864 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2452 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
1865 | { |
2453 | { |
1866 | char path [4096]; |
2454 | char path [4096]; |
1867 | strcpy (path, w->path); |
2455 | strcpy (path, w->path); |
1868 | |
2456 | |
… | |
… | |
1994 | } |
2582 | } |
1995 | |
2583 | |
1996 | } |
2584 | } |
1997 | } |
2585 | } |
1998 | |
2586 | |
|
|
2587 | #endif |
|
|
2588 | |
|
|
2589 | #ifdef _WIN32 |
|
|
2590 | # define EV_LSTAT(p,b) _stati64 (p, b) |
|
|
2591 | #else |
|
|
2592 | # define EV_LSTAT(p,b) lstat (p, b) |
1999 | #endif |
2593 | #endif |
2000 | |
2594 | |
2001 | void |
2595 | void |
2002 | ev_stat_stat (EV_P_ ev_stat *w) |
2596 | ev_stat_stat (EV_P_ ev_stat *w) |
2003 | { |
2597 | { |
… | |
… | |
2067 | else |
2661 | else |
2068 | #endif |
2662 | #endif |
2069 | ev_timer_start (EV_A_ &w->timer); |
2663 | ev_timer_start (EV_A_ &w->timer); |
2070 | |
2664 | |
2071 | ev_start (EV_A_ (W)w, 1); |
2665 | ev_start (EV_A_ (W)w, 1); |
|
|
2666 | |
|
|
2667 | EV_FREQUENT_CHECK; |
2072 | } |
2668 | } |
2073 | |
2669 | |
2074 | void |
2670 | void |
2075 | ev_stat_stop (EV_P_ ev_stat *w) |
2671 | ev_stat_stop (EV_P_ ev_stat *w) |
2076 | { |
2672 | { |
2077 | clear_pending (EV_A_ (W)w); |
2673 | clear_pending (EV_A_ (W)w); |
2078 | if (expect_false (!ev_is_active (w))) |
2674 | if (expect_false (!ev_is_active (w))) |
2079 | return; |
2675 | return; |
2080 | |
2676 | |
|
|
2677 | EV_FREQUENT_CHECK; |
|
|
2678 | |
2081 | #if EV_USE_INOTIFY |
2679 | #if EV_USE_INOTIFY |
2082 | infy_del (EV_A_ w); |
2680 | infy_del (EV_A_ w); |
2083 | #endif |
2681 | #endif |
2084 | ev_timer_stop (EV_A_ &w->timer); |
2682 | ev_timer_stop (EV_A_ &w->timer); |
2085 | |
2683 | |
2086 | ev_stop (EV_A_ (W)w); |
2684 | ev_stop (EV_A_ (W)w); |
|
|
2685 | |
|
|
2686 | EV_FREQUENT_CHECK; |
2087 | } |
2687 | } |
2088 | #endif |
2688 | #endif |
2089 | |
2689 | |
2090 | #if EV_IDLE_ENABLE |
2690 | #if EV_IDLE_ENABLE |
2091 | void |
2691 | void |
… | |
… | |
2093 | { |
2693 | { |
2094 | if (expect_false (ev_is_active (w))) |
2694 | if (expect_false (ev_is_active (w))) |
2095 | return; |
2695 | return; |
2096 | |
2696 | |
2097 | pri_adjust (EV_A_ (W)w); |
2697 | pri_adjust (EV_A_ (W)w); |
|
|
2698 | |
|
|
2699 | EV_FREQUENT_CHECK; |
2098 | |
2700 | |
2099 | { |
2701 | { |
2100 | int active = ++idlecnt [ABSPRI (w)]; |
2702 | int active = ++idlecnt [ABSPRI (w)]; |
2101 | |
2703 | |
2102 | ++idleall; |
2704 | ++idleall; |
2103 | ev_start (EV_A_ (W)w, active); |
2705 | ev_start (EV_A_ (W)w, active); |
2104 | |
2706 | |
2105 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
2707 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
2106 | idles [ABSPRI (w)][active - 1] = w; |
2708 | idles [ABSPRI (w)][active - 1] = w; |
2107 | } |
2709 | } |
|
|
2710 | |
|
|
2711 | EV_FREQUENT_CHECK; |
2108 | } |
2712 | } |
2109 | |
2713 | |
2110 | void |
2714 | void |
2111 | ev_idle_stop (EV_P_ ev_idle *w) |
2715 | ev_idle_stop (EV_P_ ev_idle *w) |
2112 | { |
2716 | { |
2113 | clear_pending (EV_A_ (W)w); |
2717 | clear_pending (EV_A_ (W)w); |
2114 | if (expect_false (!ev_is_active (w))) |
2718 | if (expect_false (!ev_is_active (w))) |
2115 | return; |
2719 | return; |
2116 | |
2720 | |
|
|
2721 | EV_FREQUENT_CHECK; |
|
|
2722 | |
2117 | { |
2723 | { |
2118 | int active = ((W)w)->active; |
2724 | int active = ev_active (w); |
2119 | |
2725 | |
2120 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2726 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2121 | ((W)idles [ABSPRI (w)][active - 1])->active = active; |
2727 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
2122 | |
2728 | |
2123 | ev_stop (EV_A_ (W)w); |
2729 | ev_stop (EV_A_ (W)w); |
2124 | --idleall; |
2730 | --idleall; |
2125 | } |
2731 | } |
|
|
2732 | |
|
|
2733 | EV_FREQUENT_CHECK; |
2126 | } |
2734 | } |
2127 | #endif |
2735 | #endif |
2128 | |
2736 | |
2129 | void |
2737 | void |
2130 | ev_prepare_start (EV_P_ ev_prepare *w) |
2738 | ev_prepare_start (EV_P_ ev_prepare *w) |
2131 | { |
2739 | { |
2132 | if (expect_false (ev_is_active (w))) |
2740 | if (expect_false (ev_is_active (w))) |
2133 | return; |
2741 | return; |
|
|
2742 | |
|
|
2743 | EV_FREQUENT_CHECK; |
2134 | |
2744 | |
2135 | ev_start (EV_A_ (W)w, ++preparecnt); |
2745 | ev_start (EV_A_ (W)w, ++preparecnt); |
2136 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
2746 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
2137 | prepares [preparecnt - 1] = w; |
2747 | prepares [preparecnt - 1] = w; |
|
|
2748 | |
|
|
2749 | EV_FREQUENT_CHECK; |
2138 | } |
2750 | } |
2139 | |
2751 | |
2140 | void |
2752 | void |
2141 | ev_prepare_stop (EV_P_ ev_prepare *w) |
2753 | ev_prepare_stop (EV_P_ ev_prepare *w) |
2142 | { |
2754 | { |
2143 | clear_pending (EV_A_ (W)w); |
2755 | clear_pending (EV_A_ (W)w); |
2144 | if (expect_false (!ev_is_active (w))) |
2756 | if (expect_false (!ev_is_active (w))) |
2145 | return; |
2757 | return; |
2146 | |
2758 | |
|
|
2759 | EV_FREQUENT_CHECK; |
|
|
2760 | |
2147 | { |
2761 | { |
2148 | int active = ((W)w)->active; |
2762 | int active = ev_active (w); |
|
|
2763 | |
2149 | prepares [active - 1] = prepares [--preparecnt]; |
2764 | prepares [active - 1] = prepares [--preparecnt]; |
2150 | ((W)prepares [active - 1])->active = active; |
2765 | ev_active (prepares [active - 1]) = active; |
2151 | } |
2766 | } |
2152 | |
2767 | |
2153 | ev_stop (EV_A_ (W)w); |
2768 | ev_stop (EV_A_ (W)w); |
|
|
2769 | |
|
|
2770 | EV_FREQUENT_CHECK; |
2154 | } |
2771 | } |
2155 | |
2772 | |
2156 | void |
2773 | void |
2157 | ev_check_start (EV_P_ ev_check *w) |
2774 | ev_check_start (EV_P_ ev_check *w) |
2158 | { |
2775 | { |
2159 | if (expect_false (ev_is_active (w))) |
2776 | if (expect_false (ev_is_active (w))) |
2160 | return; |
2777 | return; |
|
|
2778 | |
|
|
2779 | EV_FREQUENT_CHECK; |
2161 | |
2780 | |
2162 | ev_start (EV_A_ (W)w, ++checkcnt); |
2781 | ev_start (EV_A_ (W)w, ++checkcnt); |
2163 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
2782 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
2164 | checks [checkcnt - 1] = w; |
2783 | checks [checkcnt - 1] = w; |
|
|
2784 | |
|
|
2785 | EV_FREQUENT_CHECK; |
2165 | } |
2786 | } |
2166 | |
2787 | |
2167 | void |
2788 | void |
2168 | ev_check_stop (EV_P_ ev_check *w) |
2789 | ev_check_stop (EV_P_ ev_check *w) |
2169 | { |
2790 | { |
2170 | clear_pending (EV_A_ (W)w); |
2791 | clear_pending (EV_A_ (W)w); |
2171 | if (expect_false (!ev_is_active (w))) |
2792 | if (expect_false (!ev_is_active (w))) |
2172 | return; |
2793 | return; |
2173 | |
2794 | |
|
|
2795 | EV_FREQUENT_CHECK; |
|
|
2796 | |
2174 | { |
2797 | { |
2175 | int active = ((W)w)->active; |
2798 | int active = ev_active (w); |
|
|
2799 | |
2176 | checks [active - 1] = checks [--checkcnt]; |
2800 | checks [active - 1] = checks [--checkcnt]; |
2177 | ((W)checks [active - 1])->active = active; |
2801 | ev_active (checks [active - 1]) = active; |
2178 | } |
2802 | } |
2179 | |
2803 | |
2180 | ev_stop (EV_A_ (W)w); |
2804 | ev_stop (EV_A_ (W)w); |
|
|
2805 | |
|
|
2806 | EV_FREQUENT_CHECK; |
2181 | } |
2807 | } |
2182 | |
2808 | |
2183 | #if EV_EMBED_ENABLE |
2809 | #if EV_EMBED_ENABLE |
2184 | void noinline |
2810 | void noinline |
2185 | ev_embed_sweep (EV_P_ ev_embed *w) |
2811 | ev_embed_sweep (EV_P_ ev_embed *w) |
… | |
… | |
2193 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
2819 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
2194 | |
2820 | |
2195 | if (ev_cb (w)) |
2821 | if (ev_cb (w)) |
2196 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2822 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2197 | else |
2823 | else |
2198 | ev_embed_sweep (loop, w); |
2824 | ev_loop (w->other, EVLOOP_NONBLOCK); |
2199 | } |
2825 | } |
2200 | |
2826 | |
2201 | static void |
2827 | static void |
2202 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
2828 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
2203 | { |
2829 | { |
2204 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
2830 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
2205 | |
2831 | |
2206 | fd_reify (w->other); |
2832 | { |
|
|
2833 | struct ev_loop *loop = w->other; |
|
|
2834 | |
|
|
2835 | while (fdchangecnt) |
|
|
2836 | { |
|
|
2837 | fd_reify (EV_A); |
|
|
2838 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
2839 | } |
|
|
2840 | } |
2207 | } |
2841 | } |
|
|
2842 | |
|
|
2843 | static void |
|
|
2844 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
|
|
2845 | { |
|
|
2846 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
|
|
2847 | |
|
|
2848 | { |
|
|
2849 | struct ev_loop *loop = w->other; |
|
|
2850 | |
|
|
2851 | ev_loop_fork (EV_A); |
|
|
2852 | } |
|
|
2853 | } |
|
|
2854 | |
|
|
2855 | #if 0 |
|
|
2856 | static void |
|
|
2857 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
|
|
2858 | { |
|
|
2859 | ev_idle_stop (EV_A_ idle); |
|
|
2860 | } |
|
|
2861 | #endif |
2208 | |
2862 | |
2209 | void |
2863 | void |
2210 | ev_embed_start (EV_P_ ev_embed *w) |
2864 | ev_embed_start (EV_P_ ev_embed *w) |
2211 | { |
2865 | { |
2212 | if (expect_false (ev_is_active (w))) |
2866 | if (expect_false (ev_is_active (w))) |
… | |
… | |
2216 | struct ev_loop *loop = w->other; |
2870 | struct ev_loop *loop = w->other; |
2217 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2871 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2218 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2872 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2219 | } |
2873 | } |
2220 | |
2874 | |
|
|
2875 | EV_FREQUENT_CHECK; |
|
|
2876 | |
2221 | ev_set_priority (&w->io, ev_priority (w)); |
2877 | ev_set_priority (&w->io, ev_priority (w)); |
2222 | ev_io_start (EV_A_ &w->io); |
2878 | ev_io_start (EV_A_ &w->io); |
2223 | |
2879 | |
2224 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
2880 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
2225 | ev_set_priority (&w->prepare, EV_MINPRI); |
2881 | ev_set_priority (&w->prepare, EV_MINPRI); |
2226 | ev_prepare_start (EV_A_ &w->prepare); |
2882 | ev_prepare_start (EV_A_ &w->prepare); |
2227 | |
2883 | |
|
|
2884 | ev_fork_init (&w->fork, embed_fork_cb); |
|
|
2885 | ev_fork_start (EV_A_ &w->fork); |
|
|
2886 | |
|
|
2887 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
|
|
2888 | |
2228 | ev_start (EV_A_ (W)w, 1); |
2889 | ev_start (EV_A_ (W)w, 1); |
|
|
2890 | |
|
|
2891 | EV_FREQUENT_CHECK; |
2229 | } |
2892 | } |
2230 | |
2893 | |
2231 | void |
2894 | void |
2232 | ev_embed_stop (EV_P_ ev_embed *w) |
2895 | ev_embed_stop (EV_P_ ev_embed *w) |
2233 | { |
2896 | { |
2234 | clear_pending (EV_A_ (W)w); |
2897 | clear_pending (EV_A_ (W)w); |
2235 | if (expect_false (!ev_is_active (w))) |
2898 | if (expect_false (!ev_is_active (w))) |
2236 | return; |
2899 | return; |
2237 | |
2900 | |
|
|
2901 | EV_FREQUENT_CHECK; |
|
|
2902 | |
2238 | ev_io_stop (EV_A_ &w->io); |
2903 | ev_io_stop (EV_A_ &w->io); |
2239 | ev_prepare_stop (EV_A_ &w->prepare); |
2904 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
2905 | ev_fork_stop (EV_A_ &w->fork); |
2240 | |
2906 | |
2241 | ev_stop (EV_A_ (W)w); |
2907 | EV_FREQUENT_CHECK; |
2242 | } |
2908 | } |
2243 | #endif |
2909 | #endif |
2244 | |
2910 | |
2245 | #if EV_FORK_ENABLE |
2911 | #if EV_FORK_ENABLE |
2246 | void |
2912 | void |
2247 | ev_fork_start (EV_P_ ev_fork *w) |
2913 | ev_fork_start (EV_P_ ev_fork *w) |
2248 | { |
2914 | { |
2249 | if (expect_false (ev_is_active (w))) |
2915 | if (expect_false (ev_is_active (w))) |
2250 | return; |
2916 | return; |
|
|
2917 | |
|
|
2918 | EV_FREQUENT_CHECK; |
2251 | |
2919 | |
2252 | ev_start (EV_A_ (W)w, ++forkcnt); |
2920 | ev_start (EV_A_ (W)w, ++forkcnt); |
2253 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
2921 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
2254 | forks [forkcnt - 1] = w; |
2922 | forks [forkcnt - 1] = w; |
|
|
2923 | |
|
|
2924 | EV_FREQUENT_CHECK; |
2255 | } |
2925 | } |
2256 | |
2926 | |
2257 | void |
2927 | void |
2258 | ev_fork_stop (EV_P_ ev_fork *w) |
2928 | ev_fork_stop (EV_P_ ev_fork *w) |
2259 | { |
2929 | { |
2260 | clear_pending (EV_A_ (W)w); |
2930 | clear_pending (EV_A_ (W)w); |
2261 | if (expect_false (!ev_is_active (w))) |
2931 | if (expect_false (!ev_is_active (w))) |
2262 | return; |
2932 | return; |
2263 | |
2933 | |
|
|
2934 | EV_FREQUENT_CHECK; |
|
|
2935 | |
2264 | { |
2936 | { |
2265 | int active = ((W)w)->active; |
2937 | int active = ev_active (w); |
|
|
2938 | |
2266 | forks [active - 1] = forks [--forkcnt]; |
2939 | forks [active - 1] = forks [--forkcnt]; |
2267 | ((W)forks [active - 1])->active = active; |
2940 | ev_active (forks [active - 1]) = active; |
2268 | } |
2941 | } |
2269 | |
2942 | |
2270 | ev_stop (EV_A_ (W)w); |
2943 | ev_stop (EV_A_ (W)w); |
|
|
2944 | |
|
|
2945 | EV_FREQUENT_CHECK; |
|
|
2946 | } |
|
|
2947 | #endif |
|
|
2948 | |
|
|
2949 | #if EV_ASYNC_ENABLE |
|
|
2950 | void |
|
|
2951 | ev_async_start (EV_P_ ev_async *w) |
|
|
2952 | { |
|
|
2953 | if (expect_false (ev_is_active (w))) |
|
|
2954 | return; |
|
|
2955 | |
|
|
2956 | evpipe_init (EV_A); |
|
|
2957 | |
|
|
2958 | EV_FREQUENT_CHECK; |
|
|
2959 | |
|
|
2960 | ev_start (EV_A_ (W)w, ++asynccnt); |
|
|
2961 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
|
|
2962 | asyncs [asynccnt - 1] = w; |
|
|
2963 | |
|
|
2964 | EV_FREQUENT_CHECK; |
|
|
2965 | } |
|
|
2966 | |
|
|
2967 | void |
|
|
2968 | ev_async_stop (EV_P_ ev_async *w) |
|
|
2969 | { |
|
|
2970 | clear_pending (EV_A_ (W)w); |
|
|
2971 | if (expect_false (!ev_is_active (w))) |
|
|
2972 | return; |
|
|
2973 | |
|
|
2974 | EV_FREQUENT_CHECK; |
|
|
2975 | |
|
|
2976 | { |
|
|
2977 | int active = ev_active (w); |
|
|
2978 | |
|
|
2979 | asyncs [active - 1] = asyncs [--asynccnt]; |
|
|
2980 | ev_active (asyncs [active - 1]) = active; |
|
|
2981 | } |
|
|
2982 | |
|
|
2983 | ev_stop (EV_A_ (W)w); |
|
|
2984 | |
|
|
2985 | EV_FREQUENT_CHECK; |
|
|
2986 | } |
|
|
2987 | |
|
|
2988 | void |
|
|
2989 | ev_async_send (EV_P_ ev_async *w) |
|
|
2990 | { |
|
|
2991 | w->sent = 1; |
|
|
2992 | evpipe_write (EV_A_ &gotasync); |
2271 | } |
2993 | } |
2272 | #endif |
2994 | #endif |
2273 | |
2995 | |
2274 | /*****************************************************************************/ |
2996 | /*****************************************************************************/ |
2275 | |
2997 | |
… | |
… | |
2285 | once_cb (EV_P_ struct ev_once *once, int revents) |
3007 | once_cb (EV_P_ struct ev_once *once, int revents) |
2286 | { |
3008 | { |
2287 | void (*cb)(int revents, void *arg) = once->cb; |
3009 | void (*cb)(int revents, void *arg) = once->cb; |
2288 | void *arg = once->arg; |
3010 | void *arg = once->arg; |
2289 | |
3011 | |
2290 | ev_io_stop (EV_A_ &once->io); |
3012 | ev_io_stop (EV_A_ &once->io); |
2291 | ev_timer_stop (EV_A_ &once->to); |
3013 | ev_timer_stop (EV_A_ &once->to); |
2292 | ev_free (once); |
3014 | ev_free (once); |
2293 | |
3015 | |
2294 | cb (revents, arg); |
3016 | cb (revents, arg); |
2295 | } |
3017 | } |
2296 | |
3018 | |
2297 | static void |
3019 | static void |
2298 | once_cb_io (EV_P_ ev_io *w, int revents) |
3020 | once_cb_io (EV_P_ ev_io *w, int revents) |
2299 | { |
3021 | { |
2300 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
3022 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)); |
|
|
3023 | |
|
|
3024 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to)); |
2301 | } |
3025 | } |
2302 | |
3026 | |
2303 | static void |
3027 | static void |
2304 | once_cb_to (EV_P_ ev_timer *w, int revents) |
3028 | once_cb_to (EV_P_ ev_timer *w, int revents) |
2305 | { |
3029 | { |
2306 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
3030 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)); |
|
|
3031 | |
|
|
3032 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
2307 | } |
3033 | } |
2308 | |
3034 | |
2309 | void |
3035 | void |
2310 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
3036 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
2311 | { |
3037 | { |