1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008 Marc Alexander Lehmann <libev@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * modification, are permitted provided that the following conditions are |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * met: |
9 | * |
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10 | * 1. Redistributions of source code must retain the above copyright notice, |
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11 | * this list of conditions and the following disclaimer. |
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12 | * |
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13 | * 2. Redistributions in binary form must reproduce the above copyright |
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14 | * notice, this list of conditions and the following disclaimer in the |
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15 | * documentation and/or other materials provided with the distribution. |
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16 | * |
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17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
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18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
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19 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
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20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
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21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
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22 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
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23 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
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24 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
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25 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
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26 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
10 | * |
27 | * |
11 | * * Redistributions of source code must retain the above copyright |
28 | * Alternatively, the contents of this file may be used under the terms of |
12 | * notice, this list of conditions and the following disclaimer. |
29 | * the GNU General Public License ("GPL") version 2 or any later version, |
13 | * |
30 | * in which case the provisions of the GPL are applicable instead of |
14 | * * Redistributions in binary form must reproduce the above |
31 | * the above. If you wish to allow the use of your version of this file |
15 | * copyright notice, this list of conditions and the following |
32 | * only under the terms of the GPL and not to allow others to use your |
16 | * disclaimer in the documentation and/or other materials provided |
33 | * version of this file under the BSD license, indicate your decision |
17 | * with the distribution. |
34 | * by deleting the provisions above and replace them with the notice |
18 | * |
35 | * and other provisions required by the GPL. If you do not delete the |
19 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
36 | * provisions above, a recipient may use your version of this file under |
20 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
37 | * either the BSD or the GPL. |
21 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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22 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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23 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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24 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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25 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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26 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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27 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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28 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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29 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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30 | */ |
38 | */ |
31 | |
39 | |
32 | #ifdef __cplusplus |
40 | #ifdef __cplusplus |
33 | extern "C" { |
41 | extern "C" { |
34 | #endif |
42 | #endif |
35 | |
43 | |
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44 | /* this big block deduces configuration from config.h */ |
36 | #ifndef EV_STANDALONE |
45 | #ifndef EV_STANDALONE |
37 | # ifdef EV_CONFIG_H |
46 | # ifdef EV_CONFIG_H |
38 | # include EV_CONFIG_H |
47 | # include EV_CONFIG_H |
39 | # else |
48 | # else |
40 | # include "config.h" |
49 | # include "config.h" |
… | |
… | |
51 | # ifndef EV_USE_MONOTONIC |
60 | # ifndef EV_USE_MONOTONIC |
52 | # define EV_USE_MONOTONIC 0 |
61 | # define EV_USE_MONOTONIC 0 |
53 | # endif |
62 | # endif |
54 | # ifndef EV_USE_REALTIME |
63 | # ifndef EV_USE_REALTIME |
55 | # define EV_USE_REALTIME 0 |
64 | # define EV_USE_REALTIME 0 |
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65 | # endif |
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66 | # endif |
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67 | |
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68 | # ifndef EV_USE_NANOSLEEP |
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69 | # if HAVE_NANOSLEEP |
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70 | # define EV_USE_NANOSLEEP 1 |
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71 | # else |
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72 | # define EV_USE_NANOSLEEP 0 |
56 | # endif |
73 | # endif |
57 | # endif |
74 | # endif |
58 | |
75 | |
59 | # ifndef EV_USE_SELECT |
76 | # ifndef EV_USE_SELECT |
60 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
77 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
… | |
… | |
102 | # else |
119 | # else |
103 | # define EV_USE_INOTIFY 0 |
120 | # define EV_USE_INOTIFY 0 |
104 | # endif |
121 | # endif |
105 | # endif |
122 | # endif |
106 | |
123 | |
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124 | # ifndef EV_USE_EVENTFD |
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125 | # if HAVE_EVENTFD |
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126 | # define EV_USE_EVENTFD 1 |
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127 | # else |
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128 | # define EV_USE_EVENTFD 0 |
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129 | # endif |
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130 | # endif |
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131 | |
107 | #endif |
132 | #endif |
108 | |
133 | |
109 | #include <math.h> |
134 | #include <math.h> |
110 | #include <stdlib.h> |
135 | #include <stdlib.h> |
111 | #include <fcntl.h> |
136 | #include <fcntl.h> |
… | |
… | |
129 | #ifndef _WIN32 |
154 | #ifndef _WIN32 |
130 | # include <sys/time.h> |
155 | # include <sys/time.h> |
131 | # include <sys/wait.h> |
156 | # include <sys/wait.h> |
132 | # include <unistd.h> |
157 | # include <unistd.h> |
133 | #else |
158 | #else |
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159 | # include <io.h> |
134 | # define WIN32_LEAN_AND_MEAN |
160 | # define WIN32_LEAN_AND_MEAN |
135 | # include <windows.h> |
161 | # include <windows.h> |
136 | # ifndef EV_SELECT_IS_WINSOCKET |
162 | # ifndef EV_SELECT_IS_WINSOCKET |
137 | # define EV_SELECT_IS_WINSOCKET 1 |
163 | # define EV_SELECT_IS_WINSOCKET 1 |
138 | # endif |
164 | # endif |
139 | #endif |
165 | #endif |
140 | |
166 | |
141 | /**/ |
167 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
142 | |
168 | |
143 | #ifndef EV_USE_MONOTONIC |
169 | #ifndef EV_USE_MONOTONIC |
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170 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
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171 | # define EV_USE_MONOTONIC 1 |
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172 | # else |
144 | # define EV_USE_MONOTONIC 0 |
173 | # define EV_USE_MONOTONIC 0 |
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174 | # endif |
145 | #endif |
175 | #endif |
146 | |
176 | |
147 | #ifndef EV_USE_REALTIME |
177 | #ifndef EV_USE_REALTIME |
148 | # define EV_USE_REALTIME 0 |
178 | # define EV_USE_REALTIME 0 |
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179 | #endif |
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180 | |
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181 | #ifndef EV_USE_NANOSLEEP |
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182 | # if _POSIX_C_SOURCE >= 199309L |
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183 | # define EV_USE_NANOSLEEP 1 |
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184 | # else |
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185 | # define EV_USE_NANOSLEEP 0 |
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186 | # endif |
149 | #endif |
187 | #endif |
150 | |
188 | |
151 | #ifndef EV_USE_SELECT |
189 | #ifndef EV_USE_SELECT |
152 | # define EV_USE_SELECT 1 |
190 | # define EV_USE_SELECT 1 |
153 | #endif |
191 | #endif |
… | |
… | |
159 | # define EV_USE_POLL 1 |
197 | # define EV_USE_POLL 1 |
160 | # endif |
198 | # endif |
161 | #endif |
199 | #endif |
162 | |
200 | |
163 | #ifndef EV_USE_EPOLL |
201 | #ifndef EV_USE_EPOLL |
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202 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
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203 | # define EV_USE_EPOLL 1 |
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204 | # else |
164 | # define EV_USE_EPOLL 0 |
205 | # define EV_USE_EPOLL 0 |
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206 | # endif |
165 | #endif |
207 | #endif |
166 | |
208 | |
167 | #ifndef EV_USE_KQUEUE |
209 | #ifndef EV_USE_KQUEUE |
168 | # define EV_USE_KQUEUE 0 |
210 | # define EV_USE_KQUEUE 0 |
169 | #endif |
211 | #endif |
… | |
… | |
171 | #ifndef EV_USE_PORT |
213 | #ifndef EV_USE_PORT |
172 | # define EV_USE_PORT 0 |
214 | # define EV_USE_PORT 0 |
173 | #endif |
215 | #endif |
174 | |
216 | |
175 | #ifndef EV_USE_INOTIFY |
217 | #ifndef EV_USE_INOTIFY |
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218 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
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219 | # define EV_USE_INOTIFY 1 |
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220 | # else |
176 | # define EV_USE_INOTIFY 0 |
221 | # define EV_USE_INOTIFY 0 |
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222 | # endif |
177 | #endif |
223 | #endif |
178 | |
224 | |
179 | #ifndef EV_PID_HASHSIZE |
225 | #ifndef EV_PID_HASHSIZE |
180 | # if EV_MINIMAL |
226 | # if EV_MINIMAL |
181 | # define EV_PID_HASHSIZE 1 |
227 | # define EV_PID_HASHSIZE 1 |
… | |
… | |
190 | # else |
236 | # else |
191 | # define EV_INOTIFY_HASHSIZE 16 |
237 | # define EV_INOTIFY_HASHSIZE 16 |
192 | # endif |
238 | # endif |
193 | #endif |
239 | #endif |
194 | |
240 | |
195 | /**/ |
241 | #ifndef EV_USE_EVENTFD |
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242 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
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243 | # define EV_USE_EVENTFD 1 |
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244 | # else |
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245 | # define EV_USE_EVENTFD 0 |
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246 | # endif |
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247 | #endif |
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248 | |
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249 | #if 0 /* debugging */ |
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250 | # define EV_VERIFY 3 |
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251 | # define EV_USE_4HEAP 1 |
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252 | # define EV_HEAP_CACHE_AT 1 |
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253 | #endif |
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254 | |
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255 | #ifndef EV_VERIFY |
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256 | # define EV_VERIFY !EV_MINIMAL |
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257 | #endif |
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258 | |
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259 | #ifndef EV_USE_4HEAP |
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260 | # define EV_USE_4HEAP !EV_MINIMAL |
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261 | #endif |
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262 | |
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263 | #ifndef EV_HEAP_CACHE_AT |
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264 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
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265 | #endif |
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266 | |
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267 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
196 | |
268 | |
197 | #ifndef CLOCK_MONOTONIC |
269 | #ifndef CLOCK_MONOTONIC |
198 | # undef EV_USE_MONOTONIC |
270 | # undef EV_USE_MONOTONIC |
199 | # define EV_USE_MONOTONIC 0 |
271 | # define EV_USE_MONOTONIC 0 |
200 | #endif |
272 | #endif |
… | |
… | |
202 | #ifndef CLOCK_REALTIME |
274 | #ifndef CLOCK_REALTIME |
203 | # undef EV_USE_REALTIME |
275 | # undef EV_USE_REALTIME |
204 | # define EV_USE_REALTIME 0 |
276 | # define EV_USE_REALTIME 0 |
205 | #endif |
277 | #endif |
206 | |
278 | |
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279 | #if !EV_STAT_ENABLE |
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280 | # undef EV_USE_INOTIFY |
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281 | # define EV_USE_INOTIFY 0 |
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282 | #endif |
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283 | |
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284 | #if !EV_USE_NANOSLEEP |
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285 | # ifndef _WIN32 |
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286 | # include <sys/select.h> |
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287 | # endif |
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288 | #endif |
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289 | |
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290 | #if EV_USE_INOTIFY |
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291 | # include <sys/inotify.h> |
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292 | #endif |
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293 | |
207 | #if EV_SELECT_IS_WINSOCKET |
294 | #if EV_SELECT_IS_WINSOCKET |
208 | # include <winsock.h> |
295 | # include <winsock.h> |
209 | #endif |
296 | #endif |
210 | |
297 | |
211 | #if !EV_STAT_ENABLE |
298 | #if EV_USE_EVENTFD |
212 | # define EV_USE_INOTIFY 0 |
299 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
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300 | # include <stdint.h> |
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301 | # ifdef __cplusplus |
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302 | extern "C" { |
213 | #endif |
303 | # endif |
214 | |
304 | int eventfd (unsigned int initval, int flags); |
215 | #if EV_USE_INOTIFY |
305 | # ifdef __cplusplus |
216 | # include <sys/inotify.h> |
306 | } |
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307 | # endif |
217 | #endif |
308 | #endif |
218 | |
309 | |
219 | /**/ |
310 | /**/ |
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311 | |
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312 | #if EV_VERIFY >= 3 |
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313 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
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314 | #else |
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315 | # define EV_FREQUENT_CHECK do { } while (0) |
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316 | #endif |
220 | |
317 | |
221 | /* |
318 | /* |
222 | * This is used to avoid floating point rounding problems. |
319 | * This is used to avoid floating point rounding problems. |
223 | * It is added to ev_rt_now when scheduling periodics |
320 | * It is added to ev_rt_now when scheduling periodics |
224 | * to ensure progress, time-wise, even when rounding |
321 | * to ensure progress, time-wise, even when rounding |
… | |
… | |
230 | |
327 | |
231 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
328 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
232 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
329 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
233 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
330 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
234 | |
331 | |
235 | #if __GNUC__ >= 3 |
332 | #if __GNUC__ >= 4 |
236 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
333 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
237 | # define noinline __attribute__ ((noinline)) |
334 | # define noinline __attribute__ ((noinline)) |
238 | #else |
335 | #else |
239 | # define expect(expr,value) (expr) |
336 | # define expect(expr,value) (expr) |
240 | # define noinline |
337 | # define noinline |
241 | # if __STDC_VERSION__ < 199901L |
338 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
242 | # define inline |
339 | # define inline |
243 | # endif |
340 | # endif |
244 | #endif |
341 | #endif |
245 | |
342 | |
246 | #define expect_false(expr) expect ((expr) != 0, 0) |
343 | #define expect_false(expr) expect ((expr) != 0, 0) |
… | |
… | |
261 | |
358 | |
262 | typedef ev_watcher *W; |
359 | typedef ev_watcher *W; |
263 | typedef ev_watcher_list *WL; |
360 | typedef ev_watcher_list *WL; |
264 | typedef ev_watcher_time *WT; |
361 | typedef ev_watcher_time *WT; |
265 | |
362 | |
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363 | #define ev_active(w) ((W)(w))->active |
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364 | #define ev_at(w) ((WT)(w))->at |
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365 | |
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366 | #if EV_USE_MONOTONIC |
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367 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
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368 | /* giving it a reasonably high chance of working on typical architetcures */ |
266 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
369 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
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370 | #endif |
267 | |
371 | |
268 | #ifdef _WIN32 |
372 | #ifdef _WIN32 |
269 | # include "ev_win32.c" |
373 | # include "ev_win32.c" |
270 | #endif |
374 | #endif |
271 | |
375 | |
… | |
… | |
292 | perror (msg); |
396 | perror (msg); |
293 | abort (); |
397 | abort (); |
294 | } |
398 | } |
295 | } |
399 | } |
296 | |
400 | |
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401 | static void * |
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402 | ev_realloc_emul (void *ptr, long size) |
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403 | { |
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404 | /* some systems, notably openbsd and darwin, fail to properly |
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405 | * implement realloc (x, 0) (as required by both ansi c-98 and |
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406 | * the single unix specification, so work around them here. |
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407 | */ |
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408 | |
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409 | if (size) |
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410 | return realloc (ptr, size); |
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411 | |
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412 | free (ptr); |
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413 | return 0; |
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414 | } |
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415 | |
297 | static void *(*alloc)(void *ptr, long size); |
416 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
298 | |
417 | |
299 | void |
418 | void |
300 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
419 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
301 | { |
420 | { |
302 | alloc = cb; |
421 | alloc = cb; |
303 | } |
422 | } |
304 | |
423 | |
305 | inline_speed void * |
424 | inline_speed void * |
306 | ev_realloc (void *ptr, long size) |
425 | ev_realloc (void *ptr, long size) |
307 | { |
426 | { |
308 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
427 | ptr = alloc (ptr, size); |
309 | |
428 | |
310 | if (!ptr && size) |
429 | if (!ptr && size) |
311 | { |
430 | { |
312 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
431 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
313 | abort (); |
432 | abort (); |
… | |
… | |
336 | W w; |
455 | W w; |
337 | int events; |
456 | int events; |
338 | } ANPENDING; |
457 | } ANPENDING; |
339 | |
458 | |
340 | #if EV_USE_INOTIFY |
459 | #if EV_USE_INOTIFY |
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460 | /* hash table entry per inotify-id */ |
341 | typedef struct |
461 | typedef struct |
342 | { |
462 | { |
343 | WL head; |
463 | WL head; |
344 | } ANFS; |
464 | } ANFS; |
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465 | #endif |
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466 | |
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467 | /* Heap Entry */ |
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468 | #if EV_HEAP_CACHE_AT |
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469 | typedef struct { |
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470 | ev_tstamp at; |
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471 | WT w; |
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472 | } ANHE; |
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473 | |
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474 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
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475 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
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476 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
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477 | #else |
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478 | typedef WT ANHE; |
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479 | |
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480 | #define ANHE_w(he) (he) |
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481 | #define ANHE_at(he) (he)->at |
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482 | #define ANHE_at_cache(he) |
345 | #endif |
483 | #endif |
346 | |
484 | |
347 | #if EV_MULTIPLICITY |
485 | #if EV_MULTIPLICITY |
348 | |
486 | |
349 | struct ev_loop |
487 | struct ev_loop |
… | |
… | |
407 | { |
545 | { |
408 | return ev_rt_now; |
546 | return ev_rt_now; |
409 | } |
547 | } |
410 | #endif |
548 | #endif |
411 | |
549 | |
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550 | void |
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551 | ev_sleep (ev_tstamp delay) |
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552 | { |
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553 | if (delay > 0.) |
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554 | { |
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555 | #if EV_USE_NANOSLEEP |
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556 | struct timespec ts; |
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557 | |
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558 | ts.tv_sec = (time_t)delay; |
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559 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
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560 | |
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561 | nanosleep (&ts, 0); |
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562 | #elif defined(_WIN32) |
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563 | Sleep ((unsigned long)(delay * 1e3)); |
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564 | #else |
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565 | struct timeval tv; |
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566 | |
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567 | tv.tv_sec = (time_t)delay; |
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568 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
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569 | |
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570 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
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571 | /* somehting nto guaranteed by newer posix versions, but guaranteed */ |
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572 | /* by older ones */ |
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573 | select (0, 0, 0, 0, &tv); |
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574 | #endif |
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575 | } |
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576 | } |
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577 | |
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578 | /*****************************************************************************/ |
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579 | |
|
|
580 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
|
|
581 | |
412 | int inline_size |
582 | int inline_size |
413 | array_nextsize (int elem, int cur, int cnt) |
583 | array_nextsize (int elem, int cur, int cnt) |
414 | { |
584 | { |
415 | int ncur = cur + 1; |
585 | int ncur = cur + 1; |
416 | |
586 | |
417 | do |
587 | do |
418 | ncur <<= 1; |
588 | ncur <<= 1; |
419 | while (cnt > ncur); |
589 | while (cnt > ncur); |
420 | |
590 | |
421 | /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */ |
591 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
422 | if (elem * ncur > 4096) |
592 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
423 | { |
593 | { |
424 | ncur *= elem; |
594 | ncur *= elem; |
425 | ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095; |
595 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
426 | ncur = ncur - sizeof (void *) * 4; |
596 | ncur = ncur - sizeof (void *) * 4; |
427 | ncur /= elem; |
597 | ncur /= elem; |
428 | } |
598 | } |
429 | |
599 | |
430 | return ncur; |
600 | return ncur; |
… | |
… | |
533 | { |
703 | { |
534 | int fd = fdchanges [i]; |
704 | int fd = fdchanges [i]; |
535 | ANFD *anfd = anfds + fd; |
705 | ANFD *anfd = anfds + fd; |
536 | ev_io *w; |
706 | ev_io *w; |
537 | |
707 | |
538 | int events = 0; |
708 | unsigned char events = 0; |
539 | |
709 | |
540 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
710 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
541 | events |= w->events; |
711 | events |= (unsigned char)w->events; |
542 | |
712 | |
543 | #if EV_SELECT_IS_WINSOCKET |
713 | #if EV_SELECT_IS_WINSOCKET |
544 | if (events) |
714 | if (events) |
545 | { |
715 | { |
546 | unsigned long argp; |
716 | unsigned long arg; |
|
|
717 | #ifdef EV_FD_TO_WIN32_HANDLE |
|
|
718 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
719 | #else |
547 | anfd->handle = _get_osfhandle (fd); |
720 | anfd->handle = _get_osfhandle (fd); |
|
|
721 | #endif |
548 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
722 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
549 | } |
723 | } |
550 | #endif |
724 | #endif |
551 | |
725 | |
|
|
726 | { |
|
|
727 | unsigned char o_events = anfd->events; |
|
|
728 | unsigned char o_reify = anfd->reify; |
|
|
729 | |
552 | anfd->reify = 0; |
730 | anfd->reify = 0; |
553 | |
|
|
554 | backend_modify (EV_A_ fd, anfd->events, events); |
|
|
555 | anfd->events = events; |
731 | anfd->events = events; |
|
|
732 | |
|
|
733 | if (o_events != events || o_reify & EV_IOFDSET) |
|
|
734 | backend_modify (EV_A_ fd, o_events, events); |
|
|
735 | } |
556 | } |
736 | } |
557 | |
737 | |
558 | fdchangecnt = 0; |
738 | fdchangecnt = 0; |
559 | } |
739 | } |
560 | |
740 | |
561 | void inline_size |
741 | void inline_size |
562 | fd_change (EV_P_ int fd) |
742 | fd_change (EV_P_ int fd, int flags) |
563 | { |
743 | { |
564 | if (expect_false (anfds [fd].reify)) |
744 | unsigned char reify = anfds [fd].reify; |
565 | return; |
|
|
566 | |
|
|
567 | anfds [fd].reify = 1; |
745 | anfds [fd].reify |= flags; |
568 | |
746 | |
|
|
747 | if (expect_true (!reify)) |
|
|
748 | { |
569 | ++fdchangecnt; |
749 | ++fdchangecnt; |
570 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
750 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
571 | fdchanges [fdchangecnt - 1] = fd; |
751 | fdchanges [fdchangecnt - 1] = fd; |
|
|
752 | } |
572 | } |
753 | } |
573 | |
754 | |
574 | void inline_speed |
755 | void inline_speed |
575 | fd_kill (EV_P_ int fd) |
756 | fd_kill (EV_P_ int fd) |
576 | { |
757 | { |
… | |
… | |
599 | { |
780 | { |
600 | int fd; |
781 | int fd; |
601 | |
782 | |
602 | for (fd = 0; fd < anfdmax; ++fd) |
783 | for (fd = 0; fd < anfdmax; ++fd) |
603 | if (anfds [fd].events) |
784 | if (anfds [fd].events) |
604 | if (!fd_valid (fd) == -1 && errno == EBADF) |
785 | if (!fd_valid (fd) && errno == EBADF) |
605 | fd_kill (EV_A_ fd); |
786 | fd_kill (EV_A_ fd); |
606 | } |
787 | } |
607 | |
788 | |
608 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
789 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
609 | static void noinline |
790 | static void noinline |
… | |
… | |
627 | |
808 | |
628 | for (fd = 0; fd < anfdmax; ++fd) |
809 | for (fd = 0; fd < anfdmax; ++fd) |
629 | if (anfds [fd].events) |
810 | if (anfds [fd].events) |
630 | { |
811 | { |
631 | anfds [fd].events = 0; |
812 | anfds [fd].events = 0; |
632 | fd_change (EV_A_ fd); |
813 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
633 | } |
814 | } |
634 | } |
815 | } |
635 | |
816 | |
636 | /*****************************************************************************/ |
817 | /*****************************************************************************/ |
637 | |
818 | |
|
|
819 | /* |
|
|
820 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
|
|
821 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
|
|
822 | * the branching factor of the d-tree. |
|
|
823 | */ |
|
|
824 | |
|
|
825 | /* |
|
|
826 | * at the moment we allow libev the luxury of two heaps, |
|
|
827 | * a small-code-size 2-heap one and a ~1.5kb larger 4-heap |
|
|
828 | * which is more cache-efficient. |
|
|
829 | * the difference is about 5% with 50000+ watchers. |
|
|
830 | */ |
|
|
831 | #if EV_USE_4HEAP |
|
|
832 | |
|
|
833 | #define DHEAP 4 |
|
|
834 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
|
|
835 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
|
|
836 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
|
|
837 | |
|
|
838 | /* away from the root */ |
638 | void inline_speed |
839 | void inline_speed |
639 | upheap (WT *heap, int k) |
840 | downheap (ANHE *heap, int N, int k) |
640 | { |
841 | { |
641 | WT w = heap [k]; |
842 | ANHE he = heap [k]; |
|
|
843 | ANHE *E = heap + N + HEAP0; |
642 | |
844 | |
643 | while (k) |
845 | for (;;) |
644 | { |
846 | { |
645 | int p = (k - 1) >> 1; |
847 | ev_tstamp minat; |
|
|
848 | ANHE *minpos; |
|
|
849 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
646 | |
850 | |
647 | if (heap [p]->at <= w->at) |
851 | /* find minimum child */ |
|
|
852 | if (expect_true (pos + DHEAP - 1 < E)) |
|
|
853 | { |
|
|
854 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
855 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
856 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
857 | if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
858 | } |
|
|
859 | else if (pos < E) |
|
|
860 | { |
|
|
861 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
862 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
863 | if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
864 | if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
865 | } |
|
|
866 | else |
648 | break; |
867 | break; |
649 | |
868 | |
|
|
869 | if (ANHE_at (he) <= minat) |
|
|
870 | break; |
|
|
871 | |
|
|
872 | heap [k] = *minpos; |
|
|
873 | ev_active (ANHE_w (*minpos)) = k; |
|
|
874 | |
|
|
875 | k = minpos - heap; |
|
|
876 | } |
|
|
877 | |
|
|
878 | heap [k] = he; |
|
|
879 | ev_active (ANHE_w (he)) = k; |
|
|
880 | } |
|
|
881 | |
|
|
882 | #else /* 4HEAP */ |
|
|
883 | |
|
|
884 | #define HEAP0 1 |
|
|
885 | #define HPARENT(k) ((k) >> 1) |
|
|
886 | #define UPHEAP_DONE(p,k) (!(p)) |
|
|
887 | |
|
|
888 | /* away from the root */ |
|
|
889 | void inline_speed |
|
|
890 | downheap (ANHE *heap, int N, int k) |
|
|
891 | { |
|
|
892 | ANHE he = heap [k]; |
|
|
893 | |
|
|
894 | for (;;) |
|
|
895 | { |
|
|
896 | int c = k << 1; |
|
|
897 | |
|
|
898 | if (c > N + HEAP0 - 1) |
|
|
899 | break; |
|
|
900 | |
|
|
901 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
|
|
902 | ? 1 : 0; |
|
|
903 | |
|
|
904 | if (ANHE_at (he) <= ANHE_at (heap [c])) |
|
|
905 | break; |
|
|
906 | |
|
|
907 | heap [k] = heap [c]; |
|
|
908 | ev_active (ANHE_w (heap [k])) = k; |
|
|
909 | |
|
|
910 | k = c; |
|
|
911 | } |
|
|
912 | |
|
|
913 | heap [k] = he; |
|
|
914 | ev_active (ANHE_w (he)) = k; |
|
|
915 | } |
|
|
916 | #endif |
|
|
917 | |
|
|
918 | /* towards the root */ |
|
|
919 | void inline_speed |
|
|
920 | upheap (ANHE *heap, int k) |
|
|
921 | { |
|
|
922 | ANHE he = heap [k]; |
|
|
923 | |
|
|
924 | for (;;) |
|
|
925 | { |
|
|
926 | int p = HPARENT (k); |
|
|
927 | |
|
|
928 | if (UPHEAP_DONE (p, k) || ANHE_at (heap [p]) <= ANHE_at (he)) |
|
|
929 | break; |
|
|
930 | |
650 | heap [k] = heap [p]; |
931 | heap [k] = heap [p]; |
651 | ((W)heap [k])->active = k + 1; |
932 | ev_active (ANHE_w (heap [k])) = k; |
652 | k = p; |
933 | k = p; |
653 | } |
934 | } |
654 | |
935 | |
655 | heap [k] = w; |
936 | heap [k] = he; |
656 | ((W)heap [k])->active = k + 1; |
937 | ev_active (ANHE_w (he)) = k; |
657 | |
|
|
658 | } |
|
|
659 | |
|
|
660 | void inline_speed |
|
|
661 | downheap (WT *heap, int N, int k) |
|
|
662 | { |
|
|
663 | WT w = heap [k]; |
|
|
664 | |
|
|
665 | for (;;) |
|
|
666 | { |
|
|
667 | int c = (k << 1) + 1; |
|
|
668 | |
|
|
669 | if (c >= N) |
|
|
670 | break; |
|
|
671 | |
|
|
672 | c += c + 1 < N && heap [c]->at > heap [c + 1]->at |
|
|
673 | ? 1 : 0; |
|
|
674 | |
|
|
675 | if (w->at <= heap [c]->at) |
|
|
676 | break; |
|
|
677 | |
|
|
678 | heap [k] = heap [c]; |
|
|
679 | ((W)heap [k])->active = k + 1; |
|
|
680 | |
|
|
681 | k = c; |
|
|
682 | } |
|
|
683 | |
|
|
684 | heap [k] = w; |
|
|
685 | ((W)heap [k])->active = k + 1; |
|
|
686 | } |
938 | } |
687 | |
939 | |
688 | void inline_size |
940 | void inline_size |
689 | adjustheap (WT *heap, int N, int k) |
941 | adjustheap (ANHE *heap, int N, int k) |
690 | { |
942 | { |
|
|
943 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
691 | upheap (heap, k); |
944 | upheap (heap, k); |
|
|
945 | else |
692 | downheap (heap, N, k); |
946 | downheap (heap, N, k); |
|
|
947 | } |
|
|
948 | |
|
|
949 | /* rebuild the heap: this function is used only once and executed rarely */ |
|
|
950 | void inline_size |
|
|
951 | reheap (ANHE *heap, int N) |
|
|
952 | { |
|
|
953 | int i; |
|
|
954 | |
|
|
955 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
|
|
956 | /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */ |
|
|
957 | for (i = 0; i < N; ++i) |
|
|
958 | upheap (heap, i + HEAP0); |
693 | } |
959 | } |
694 | |
960 | |
695 | /*****************************************************************************/ |
961 | /*****************************************************************************/ |
696 | |
962 | |
697 | typedef struct |
963 | typedef struct |
698 | { |
964 | { |
699 | WL head; |
965 | WL head; |
700 | sig_atomic_t volatile gotsig; |
966 | EV_ATOMIC_T gotsig; |
701 | } ANSIG; |
967 | } ANSIG; |
702 | |
968 | |
703 | static ANSIG *signals; |
969 | static ANSIG *signals; |
704 | static int signalmax; |
970 | static int signalmax; |
705 | |
971 | |
706 | static int sigpipe [2]; |
972 | static EV_ATOMIC_T gotsig; |
707 | static sig_atomic_t volatile gotsig; |
|
|
708 | static ev_io sigev; |
|
|
709 | |
973 | |
710 | void inline_size |
974 | void inline_size |
711 | signals_init (ANSIG *base, int count) |
975 | signals_init (ANSIG *base, int count) |
712 | { |
976 | { |
713 | while (count--) |
977 | while (count--) |
… | |
… | |
717 | |
981 | |
718 | ++base; |
982 | ++base; |
719 | } |
983 | } |
720 | } |
984 | } |
721 | |
985 | |
722 | static void |
986 | /*****************************************************************************/ |
723 | sighandler (int signum) |
|
|
724 | { |
|
|
725 | #if _WIN32 |
|
|
726 | signal (signum, sighandler); |
|
|
727 | #endif |
|
|
728 | |
|
|
729 | signals [signum - 1].gotsig = 1; |
|
|
730 | |
|
|
731 | if (!gotsig) |
|
|
732 | { |
|
|
733 | int old_errno = errno; |
|
|
734 | gotsig = 1; |
|
|
735 | write (sigpipe [1], &signum, 1); |
|
|
736 | errno = old_errno; |
|
|
737 | } |
|
|
738 | } |
|
|
739 | |
|
|
740 | void noinline |
|
|
741 | ev_feed_signal_event (EV_P_ int signum) |
|
|
742 | { |
|
|
743 | WL w; |
|
|
744 | |
|
|
745 | #if EV_MULTIPLICITY |
|
|
746 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
747 | #endif |
|
|
748 | |
|
|
749 | --signum; |
|
|
750 | |
|
|
751 | if (signum < 0 || signum >= signalmax) |
|
|
752 | return; |
|
|
753 | |
|
|
754 | signals [signum].gotsig = 0; |
|
|
755 | |
|
|
756 | for (w = signals [signum].head; w; w = w->next) |
|
|
757 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
758 | } |
|
|
759 | |
|
|
760 | static void |
|
|
761 | sigcb (EV_P_ ev_io *iow, int revents) |
|
|
762 | { |
|
|
763 | int signum; |
|
|
764 | |
|
|
765 | read (sigpipe [0], &revents, 1); |
|
|
766 | gotsig = 0; |
|
|
767 | |
|
|
768 | for (signum = signalmax; signum--; ) |
|
|
769 | if (signals [signum].gotsig) |
|
|
770 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
771 | } |
|
|
772 | |
987 | |
773 | void inline_speed |
988 | void inline_speed |
774 | fd_intern (int fd) |
989 | fd_intern (int fd) |
775 | { |
990 | { |
776 | #ifdef _WIN32 |
991 | #ifdef _WIN32 |
777 | int arg = 1; |
992 | unsigned long arg = 1; |
778 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
993 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
779 | #else |
994 | #else |
780 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
995 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
781 | fcntl (fd, F_SETFL, O_NONBLOCK); |
996 | fcntl (fd, F_SETFL, O_NONBLOCK); |
782 | #endif |
997 | #endif |
783 | } |
998 | } |
784 | |
999 | |
785 | static void noinline |
1000 | static void noinline |
786 | siginit (EV_P) |
1001 | evpipe_init (EV_P) |
787 | { |
1002 | { |
|
|
1003 | if (!ev_is_active (&pipeev)) |
|
|
1004 | { |
|
|
1005 | #if EV_USE_EVENTFD |
|
|
1006 | if ((evfd = eventfd (0, 0)) >= 0) |
|
|
1007 | { |
|
|
1008 | evpipe [0] = -1; |
|
|
1009 | fd_intern (evfd); |
|
|
1010 | ev_io_set (&pipeev, evfd, EV_READ); |
|
|
1011 | } |
|
|
1012 | else |
|
|
1013 | #endif |
|
|
1014 | { |
|
|
1015 | while (pipe (evpipe)) |
|
|
1016 | syserr ("(libev) error creating signal/async pipe"); |
|
|
1017 | |
788 | fd_intern (sigpipe [0]); |
1018 | fd_intern (evpipe [0]); |
789 | fd_intern (sigpipe [1]); |
1019 | fd_intern (evpipe [1]); |
|
|
1020 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
|
|
1021 | } |
790 | |
1022 | |
791 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
|
|
792 | ev_io_start (EV_A_ &sigev); |
1023 | ev_io_start (EV_A_ &pipeev); |
793 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1024 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
1025 | } |
|
|
1026 | } |
|
|
1027 | |
|
|
1028 | void inline_size |
|
|
1029 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1030 | { |
|
|
1031 | if (!*flag) |
|
|
1032 | { |
|
|
1033 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1034 | |
|
|
1035 | *flag = 1; |
|
|
1036 | |
|
|
1037 | #if EV_USE_EVENTFD |
|
|
1038 | if (evfd >= 0) |
|
|
1039 | { |
|
|
1040 | uint64_t counter = 1; |
|
|
1041 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
1042 | } |
|
|
1043 | else |
|
|
1044 | #endif |
|
|
1045 | write (evpipe [1], &old_errno, 1); |
|
|
1046 | |
|
|
1047 | errno = old_errno; |
|
|
1048 | } |
|
|
1049 | } |
|
|
1050 | |
|
|
1051 | static void |
|
|
1052 | pipecb (EV_P_ ev_io *iow, int revents) |
|
|
1053 | { |
|
|
1054 | #if EV_USE_EVENTFD |
|
|
1055 | if (evfd >= 0) |
|
|
1056 | { |
|
|
1057 | uint64_t counter; |
|
|
1058 | read (evfd, &counter, sizeof (uint64_t)); |
|
|
1059 | } |
|
|
1060 | else |
|
|
1061 | #endif |
|
|
1062 | { |
|
|
1063 | char dummy; |
|
|
1064 | read (evpipe [0], &dummy, 1); |
|
|
1065 | } |
|
|
1066 | |
|
|
1067 | if (gotsig && ev_is_default_loop (EV_A)) |
|
|
1068 | { |
|
|
1069 | int signum; |
|
|
1070 | gotsig = 0; |
|
|
1071 | |
|
|
1072 | for (signum = signalmax; signum--; ) |
|
|
1073 | if (signals [signum].gotsig) |
|
|
1074 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
1075 | } |
|
|
1076 | |
|
|
1077 | #if EV_ASYNC_ENABLE |
|
|
1078 | if (gotasync) |
|
|
1079 | { |
|
|
1080 | int i; |
|
|
1081 | gotasync = 0; |
|
|
1082 | |
|
|
1083 | for (i = asynccnt; i--; ) |
|
|
1084 | if (asyncs [i]->sent) |
|
|
1085 | { |
|
|
1086 | asyncs [i]->sent = 0; |
|
|
1087 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
|
|
1088 | } |
|
|
1089 | } |
|
|
1090 | #endif |
794 | } |
1091 | } |
795 | |
1092 | |
796 | /*****************************************************************************/ |
1093 | /*****************************************************************************/ |
797 | |
1094 | |
|
|
1095 | static void |
|
|
1096 | ev_sighandler (int signum) |
|
|
1097 | { |
|
|
1098 | #if EV_MULTIPLICITY |
|
|
1099 | struct ev_loop *loop = &default_loop_struct; |
|
|
1100 | #endif |
|
|
1101 | |
|
|
1102 | #if _WIN32 |
|
|
1103 | signal (signum, ev_sighandler); |
|
|
1104 | #endif |
|
|
1105 | |
|
|
1106 | signals [signum - 1].gotsig = 1; |
|
|
1107 | evpipe_write (EV_A_ &gotsig); |
|
|
1108 | } |
|
|
1109 | |
|
|
1110 | void noinline |
|
|
1111 | ev_feed_signal_event (EV_P_ int signum) |
|
|
1112 | { |
|
|
1113 | WL w; |
|
|
1114 | |
|
|
1115 | #if EV_MULTIPLICITY |
|
|
1116 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1117 | #endif |
|
|
1118 | |
|
|
1119 | --signum; |
|
|
1120 | |
|
|
1121 | if (signum < 0 || signum >= signalmax) |
|
|
1122 | return; |
|
|
1123 | |
|
|
1124 | signals [signum].gotsig = 0; |
|
|
1125 | |
|
|
1126 | for (w = signals [signum].head; w; w = w->next) |
|
|
1127 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
1128 | } |
|
|
1129 | |
|
|
1130 | /*****************************************************************************/ |
|
|
1131 | |
798 | static ev_child *childs [EV_PID_HASHSIZE]; |
1132 | static WL childs [EV_PID_HASHSIZE]; |
799 | |
1133 | |
800 | #ifndef _WIN32 |
1134 | #ifndef _WIN32 |
801 | |
1135 | |
802 | static ev_signal childev; |
1136 | static ev_signal childev; |
803 | |
1137 | |
|
|
1138 | #ifndef WIFCONTINUED |
|
|
1139 | # define WIFCONTINUED(status) 0 |
|
|
1140 | #endif |
|
|
1141 | |
804 | void inline_speed |
1142 | void inline_speed |
805 | child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) |
1143 | child_reap (EV_P_ int chain, int pid, int status) |
806 | { |
1144 | { |
807 | ev_child *w; |
1145 | ev_child *w; |
|
|
1146 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
808 | |
1147 | |
809 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1148 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1149 | { |
810 | if (w->pid == pid || !w->pid) |
1150 | if ((w->pid == pid || !w->pid) |
|
|
1151 | && (!traced || (w->flags & 1))) |
811 | { |
1152 | { |
812 | ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */ |
1153 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
813 | w->rpid = pid; |
1154 | w->rpid = pid; |
814 | w->rstatus = status; |
1155 | w->rstatus = status; |
815 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
1156 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
816 | } |
1157 | } |
|
|
1158 | } |
817 | } |
1159 | } |
818 | |
1160 | |
819 | #ifndef WCONTINUED |
1161 | #ifndef WCONTINUED |
820 | # define WCONTINUED 0 |
1162 | # define WCONTINUED 0 |
821 | #endif |
1163 | #endif |
… | |
… | |
830 | if (!WCONTINUED |
1172 | if (!WCONTINUED |
831 | || errno != EINVAL |
1173 | || errno != EINVAL |
832 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
1174 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
833 | return; |
1175 | return; |
834 | |
1176 | |
835 | /* make sure we are called again until all childs have been reaped */ |
1177 | /* make sure we are called again until all children have been reaped */ |
836 | /* we need to do it this way so that the callback gets called before we continue */ |
1178 | /* we need to do it this way so that the callback gets called before we continue */ |
837 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1179 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
838 | |
1180 | |
839 | child_reap (EV_A_ sw, pid, pid, status); |
1181 | child_reap (EV_A_ pid, pid, status); |
840 | if (EV_PID_HASHSIZE > 1) |
1182 | if (EV_PID_HASHSIZE > 1) |
841 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1183 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
842 | } |
1184 | } |
843 | |
1185 | |
844 | #endif |
1186 | #endif |
845 | |
1187 | |
846 | /*****************************************************************************/ |
1188 | /*****************************************************************************/ |
… | |
… | |
918 | } |
1260 | } |
919 | |
1261 | |
920 | unsigned int |
1262 | unsigned int |
921 | ev_embeddable_backends (void) |
1263 | ev_embeddable_backends (void) |
922 | { |
1264 | { |
923 | return EVBACKEND_EPOLL |
1265 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
924 | | EVBACKEND_KQUEUE |
1266 | |
925 | | EVBACKEND_PORT; |
1267 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
|
|
1268 | /* please fix it and tell me how to detect the fix */ |
|
|
1269 | flags &= ~EVBACKEND_EPOLL; |
|
|
1270 | |
|
|
1271 | return flags; |
926 | } |
1272 | } |
927 | |
1273 | |
928 | unsigned int |
1274 | unsigned int |
929 | ev_backend (EV_P) |
1275 | ev_backend (EV_P) |
930 | { |
1276 | { |
… | |
… | |
933 | |
1279 | |
934 | unsigned int |
1280 | unsigned int |
935 | ev_loop_count (EV_P) |
1281 | ev_loop_count (EV_P) |
936 | { |
1282 | { |
937 | return loop_count; |
1283 | return loop_count; |
|
|
1284 | } |
|
|
1285 | |
|
|
1286 | void |
|
|
1287 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1288 | { |
|
|
1289 | io_blocktime = interval; |
|
|
1290 | } |
|
|
1291 | |
|
|
1292 | void |
|
|
1293 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1294 | { |
|
|
1295 | timeout_blocktime = interval; |
938 | } |
1296 | } |
939 | |
1297 | |
940 | static void noinline |
1298 | static void noinline |
941 | loop_init (EV_P_ unsigned int flags) |
1299 | loop_init (EV_P_ unsigned int flags) |
942 | { |
1300 | { |
… | |
… | |
948 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1306 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
949 | have_monotonic = 1; |
1307 | have_monotonic = 1; |
950 | } |
1308 | } |
951 | #endif |
1309 | #endif |
952 | |
1310 | |
953 | ev_rt_now = ev_time (); |
1311 | ev_rt_now = ev_time (); |
954 | mn_now = get_clock (); |
1312 | mn_now = get_clock (); |
955 | now_floor = mn_now; |
1313 | now_floor = mn_now; |
956 | rtmn_diff = ev_rt_now - mn_now; |
1314 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1315 | |
|
|
1316 | io_blocktime = 0.; |
|
|
1317 | timeout_blocktime = 0.; |
|
|
1318 | backend = 0; |
|
|
1319 | backend_fd = -1; |
|
|
1320 | gotasync = 0; |
|
|
1321 | #if EV_USE_INOTIFY |
|
|
1322 | fs_fd = -2; |
|
|
1323 | #endif |
957 | |
1324 | |
958 | /* pid check not overridable via env */ |
1325 | /* pid check not overridable via env */ |
959 | #ifndef _WIN32 |
1326 | #ifndef _WIN32 |
960 | if (flags & EVFLAG_FORKCHECK) |
1327 | if (flags & EVFLAG_FORKCHECK) |
961 | curpid = getpid (); |
1328 | curpid = getpid (); |
… | |
… | |
964 | if (!(flags & EVFLAG_NOENV) |
1331 | if (!(flags & EVFLAG_NOENV) |
965 | && !enable_secure () |
1332 | && !enable_secure () |
966 | && getenv ("LIBEV_FLAGS")) |
1333 | && getenv ("LIBEV_FLAGS")) |
967 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1334 | flags = atoi (getenv ("LIBEV_FLAGS")); |
968 | |
1335 | |
969 | if (!(flags & 0x0000ffffUL)) |
1336 | if (!(flags & 0x0000ffffU)) |
970 | flags |= ev_recommended_backends (); |
1337 | flags |= ev_recommended_backends (); |
971 | |
|
|
972 | backend = 0; |
|
|
973 | backend_fd = -1; |
|
|
974 | #if EV_USE_INOTIFY |
|
|
975 | fs_fd = -2; |
|
|
976 | #endif |
|
|
977 | |
1338 | |
978 | #if EV_USE_PORT |
1339 | #if EV_USE_PORT |
979 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1340 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
980 | #endif |
1341 | #endif |
981 | #if EV_USE_KQUEUE |
1342 | #if EV_USE_KQUEUE |
… | |
… | |
989 | #endif |
1350 | #endif |
990 | #if EV_USE_SELECT |
1351 | #if EV_USE_SELECT |
991 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1352 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
992 | #endif |
1353 | #endif |
993 | |
1354 | |
994 | ev_init (&sigev, sigcb); |
1355 | ev_init (&pipeev, pipecb); |
995 | ev_set_priority (&sigev, EV_MAXPRI); |
1356 | ev_set_priority (&pipeev, EV_MAXPRI); |
996 | } |
1357 | } |
997 | } |
1358 | } |
998 | |
1359 | |
999 | static void noinline |
1360 | static void noinline |
1000 | loop_destroy (EV_P) |
1361 | loop_destroy (EV_P) |
1001 | { |
1362 | { |
1002 | int i; |
1363 | int i; |
|
|
1364 | |
|
|
1365 | if (ev_is_active (&pipeev)) |
|
|
1366 | { |
|
|
1367 | ev_ref (EV_A); /* signal watcher */ |
|
|
1368 | ev_io_stop (EV_A_ &pipeev); |
|
|
1369 | |
|
|
1370 | #if EV_USE_EVENTFD |
|
|
1371 | if (evfd >= 0) |
|
|
1372 | close (evfd); |
|
|
1373 | #endif |
|
|
1374 | |
|
|
1375 | if (evpipe [0] >= 0) |
|
|
1376 | { |
|
|
1377 | close (evpipe [0]); |
|
|
1378 | close (evpipe [1]); |
|
|
1379 | } |
|
|
1380 | } |
1003 | |
1381 | |
1004 | #if EV_USE_INOTIFY |
1382 | #if EV_USE_INOTIFY |
1005 | if (fs_fd >= 0) |
1383 | if (fs_fd >= 0) |
1006 | close (fs_fd); |
1384 | close (fs_fd); |
1007 | #endif |
1385 | #endif |
… | |
… | |
1030 | array_free (pending, [i]); |
1408 | array_free (pending, [i]); |
1031 | #if EV_IDLE_ENABLE |
1409 | #if EV_IDLE_ENABLE |
1032 | array_free (idle, [i]); |
1410 | array_free (idle, [i]); |
1033 | #endif |
1411 | #endif |
1034 | } |
1412 | } |
|
|
1413 | |
|
|
1414 | ev_free (anfds); anfdmax = 0; |
1035 | |
1415 | |
1036 | /* have to use the microsoft-never-gets-it-right macro */ |
1416 | /* have to use the microsoft-never-gets-it-right macro */ |
1037 | array_free (fdchange, EMPTY); |
1417 | array_free (fdchange, EMPTY); |
1038 | array_free (timer, EMPTY); |
1418 | array_free (timer, EMPTY); |
1039 | #if EV_PERIODIC_ENABLE |
1419 | #if EV_PERIODIC_ENABLE |
1040 | array_free (periodic, EMPTY); |
1420 | array_free (periodic, EMPTY); |
1041 | #endif |
1421 | #endif |
|
|
1422 | #if EV_FORK_ENABLE |
|
|
1423 | array_free (fork, EMPTY); |
|
|
1424 | #endif |
1042 | array_free (prepare, EMPTY); |
1425 | array_free (prepare, EMPTY); |
1043 | array_free (check, EMPTY); |
1426 | array_free (check, EMPTY); |
|
|
1427 | #if EV_ASYNC_ENABLE |
|
|
1428 | array_free (async, EMPTY); |
|
|
1429 | #endif |
1044 | |
1430 | |
1045 | backend = 0; |
1431 | backend = 0; |
1046 | } |
1432 | } |
1047 | |
1433 | |
|
|
1434 | #if EV_USE_INOTIFY |
1048 | void inline_size infy_fork (EV_P); |
1435 | void inline_size infy_fork (EV_P); |
|
|
1436 | #endif |
1049 | |
1437 | |
1050 | void inline_size |
1438 | void inline_size |
1051 | loop_fork (EV_P) |
1439 | loop_fork (EV_P) |
1052 | { |
1440 | { |
1053 | #if EV_USE_PORT |
1441 | #if EV_USE_PORT |
… | |
… | |
1061 | #endif |
1449 | #endif |
1062 | #if EV_USE_INOTIFY |
1450 | #if EV_USE_INOTIFY |
1063 | infy_fork (EV_A); |
1451 | infy_fork (EV_A); |
1064 | #endif |
1452 | #endif |
1065 | |
1453 | |
1066 | if (ev_is_active (&sigev)) |
1454 | if (ev_is_active (&pipeev)) |
1067 | { |
1455 | { |
1068 | /* default loop */ |
1456 | /* this "locks" the handlers against writing to the pipe */ |
|
|
1457 | /* while we modify the fd vars */ |
|
|
1458 | gotsig = 1; |
|
|
1459 | #if EV_ASYNC_ENABLE |
|
|
1460 | gotasync = 1; |
|
|
1461 | #endif |
1069 | |
1462 | |
1070 | ev_ref (EV_A); |
1463 | ev_ref (EV_A); |
1071 | ev_io_stop (EV_A_ &sigev); |
1464 | ev_io_stop (EV_A_ &pipeev); |
|
|
1465 | |
|
|
1466 | #if EV_USE_EVENTFD |
|
|
1467 | if (evfd >= 0) |
|
|
1468 | close (evfd); |
|
|
1469 | #endif |
|
|
1470 | |
|
|
1471 | if (evpipe [0] >= 0) |
|
|
1472 | { |
1072 | close (sigpipe [0]); |
1473 | close (evpipe [0]); |
1073 | close (sigpipe [1]); |
1474 | close (evpipe [1]); |
|
|
1475 | } |
1074 | |
1476 | |
1075 | while (pipe (sigpipe)) |
|
|
1076 | syserr ("(libev) error creating pipe"); |
|
|
1077 | |
|
|
1078 | siginit (EV_A); |
1477 | evpipe_init (EV_A); |
|
|
1478 | /* now iterate over everything, in case we missed something */ |
|
|
1479 | pipecb (EV_A_ &pipeev, EV_READ); |
1079 | } |
1480 | } |
1080 | |
1481 | |
1081 | postfork = 0; |
1482 | postfork = 0; |
1082 | } |
1483 | } |
1083 | |
1484 | |
1084 | #if EV_MULTIPLICITY |
1485 | #if EV_MULTIPLICITY |
|
|
1486 | |
1085 | struct ev_loop * |
1487 | struct ev_loop * |
1086 | ev_loop_new (unsigned int flags) |
1488 | ev_loop_new (unsigned int flags) |
1087 | { |
1489 | { |
1088 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1490 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1089 | |
1491 | |
… | |
… | |
1105 | } |
1507 | } |
1106 | |
1508 | |
1107 | void |
1509 | void |
1108 | ev_loop_fork (EV_P) |
1510 | ev_loop_fork (EV_P) |
1109 | { |
1511 | { |
1110 | postfork = 1; |
1512 | postfork = 1; /* must be in line with ev_default_fork */ |
1111 | } |
1513 | } |
1112 | |
1514 | |
|
|
1515 | #if EV_VERIFY |
|
|
1516 | void noinline |
|
|
1517 | verify_watcher (EV_P_ W w) |
|
|
1518 | { |
|
|
1519 | assert (("watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
|
|
1520 | |
|
|
1521 | if (w->pending) |
|
|
1522 | assert (("pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
|
|
1523 | } |
|
|
1524 | |
|
|
1525 | static void noinline |
|
|
1526 | verify_heap (EV_P_ ANHE *heap, int N) |
|
|
1527 | { |
|
|
1528 | int i; |
|
|
1529 | |
|
|
1530 | for (i = HEAP0; i < N + HEAP0; ++i) |
|
|
1531 | { |
|
|
1532 | assert (("active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
|
|
1533 | assert (("heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
|
|
1534 | assert (("heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
|
|
1535 | |
|
|
1536 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
|
|
1537 | } |
|
|
1538 | } |
|
|
1539 | |
|
|
1540 | static void noinline |
|
|
1541 | array_verify (EV_P_ W *ws, int cnt) |
|
|
1542 | { |
|
|
1543 | while (cnt--) |
|
|
1544 | { |
|
|
1545 | assert (("active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
|
|
1546 | verify_watcher (EV_A_ ws [cnt]); |
|
|
1547 | } |
|
|
1548 | } |
|
|
1549 | #endif |
|
|
1550 | |
|
|
1551 | void |
|
|
1552 | ev_loop_verify (EV_P) |
|
|
1553 | { |
|
|
1554 | #if EV_VERIFY |
|
|
1555 | int i; |
|
|
1556 | WL w; |
|
|
1557 | |
|
|
1558 | assert (activecnt >= -1); |
|
|
1559 | |
|
|
1560 | assert (fdchangemax >= fdchangecnt); |
|
|
1561 | for (i = 0; i < fdchangecnt; ++i) |
|
|
1562 | assert (("negative fd in fdchanges", fdchanges [i] >= 0)); |
|
|
1563 | |
|
|
1564 | assert (anfdmax >= 0); |
|
|
1565 | for (i = 0; i < anfdmax; ++i) |
|
|
1566 | for (w = anfds [i].head; w; w = w->next) |
|
|
1567 | { |
|
|
1568 | verify_watcher (EV_A_ (W)w); |
|
|
1569 | assert (("inactive fd watcher on anfd list", ev_active (w) == 1)); |
|
|
1570 | assert (("fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
|
|
1571 | } |
|
|
1572 | |
|
|
1573 | assert (timermax >= timercnt); |
|
|
1574 | verify_heap (EV_A_ timers, timercnt); |
|
|
1575 | |
|
|
1576 | #if EV_PERIODIC_ENABLE |
|
|
1577 | assert (periodicmax >= periodiccnt); |
|
|
1578 | verify_heap (EV_A_ periodics, periodiccnt); |
|
|
1579 | #endif |
|
|
1580 | |
|
|
1581 | for (i = NUMPRI; i--; ) |
|
|
1582 | { |
|
|
1583 | assert (pendingmax [i] >= pendingcnt [i]); |
|
|
1584 | #if EV_IDLE_ENABLE |
|
|
1585 | assert (idleall >= 0); |
|
|
1586 | assert (idlemax [i] >= idlecnt [i]); |
|
|
1587 | array_verify (EV_A_ (W *)idles [i], idlecnt [i]); |
|
|
1588 | #endif |
|
|
1589 | } |
|
|
1590 | |
|
|
1591 | #if EV_FORK_ENABLE |
|
|
1592 | assert (forkmax >= forkcnt); |
|
|
1593 | array_verify (EV_A_ (W *)forks, forkcnt); |
|
|
1594 | #endif |
|
|
1595 | |
|
|
1596 | #if EV_ASYNC_ENABLE |
|
|
1597 | assert (asyncmax >= asynccnt); |
|
|
1598 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
|
|
1599 | #endif |
|
|
1600 | |
|
|
1601 | assert (preparemax >= preparecnt); |
|
|
1602 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
1603 | |
|
|
1604 | assert (checkmax >= checkcnt); |
|
|
1605 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
1606 | |
|
|
1607 | # if 0 |
|
|
1608 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1609 | for (signum = signalmax; signum--; ) if (signals [signum].gotsig) |
1113 | #endif |
1610 | # endif |
|
|
1611 | #endif |
|
|
1612 | } |
|
|
1613 | |
|
|
1614 | #endif /* multiplicity */ |
1114 | |
1615 | |
1115 | #if EV_MULTIPLICITY |
1616 | #if EV_MULTIPLICITY |
1116 | struct ev_loop * |
1617 | struct ev_loop * |
1117 | ev_default_loop_init (unsigned int flags) |
1618 | ev_default_loop_init (unsigned int flags) |
1118 | #else |
1619 | #else |
1119 | int |
1620 | int |
1120 | ev_default_loop (unsigned int flags) |
1621 | ev_default_loop (unsigned int flags) |
1121 | #endif |
1622 | #endif |
1122 | { |
1623 | { |
1123 | if (sigpipe [0] == sigpipe [1]) |
|
|
1124 | if (pipe (sigpipe)) |
|
|
1125 | return 0; |
|
|
1126 | |
|
|
1127 | if (!ev_default_loop_ptr) |
1624 | if (!ev_default_loop_ptr) |
1128 | { |
1625 | { |
1129 | #if EV_MULTIPLICITY |
1626 | #if EV_MULTIPLICITY |
1130 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1627 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1131 | #else |
1628 | #else |
… | |
… | |
1134 | |
1631 | |
1135 | loop_init (EV_A_ flags); |
1632 | loop_init (EV_A_ flags); |
1136 | |
1633 | |
1137 | if (ev_backend (EV_A)) |
1634 | if (ev_backend (EV_A)) |
1138 | { |
1635 | { |
1139 | siginit (EV_A); |
|
|
1140 | |
|
|
1141 | #ifndef _WIN32 |
1636 | #ifndef _WIN32 |
1142 | ev_signal_init (&childev, childcb, SIGCHLD); |
1637 | ev_signal_init (&childev, childcb, SIGCHLD); |
1143 | ev_set_priority (&childev, EV_MAXPRI); |
1638 | ev_set_priority (&childev, EV_MAXPRI); |
1144 | ev_signal_start (EV_A_ &childev); |
1639 | ev_signal_start (EV_A_ &childev); |
1145 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1640 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
… | |
… | |
1162 | #ifndef _WIN32 |
1657 | #ifndef _WIN32 |
1163 | ev_ref (EV_A); /* child watcher */ |
1658 | ev_ref (EV_A); /* child watcher */ |
1164 | ev_signal_stop (EV_A_ &childev); |
1659 | ev_signal_stop (EV_A_ &childev); |
1165 | #endif |
1660 | #endif |
1166 | |
1661 | |
1167 | ev_ref (EV_A); /* signal watcher */ |
|
|
1168 | ev_io_stop (EV_A_ &sigev); |
|
|
1169 | |
|
|
1170 | close (sigpipe [0]); sigpipe [0] = 0; |
|
|
1171 | close (sigpipe [1]); sigpipe [1] = 0; |
|
|
1172 | |
|
|
1173 | loop_destroy (EV_A); |
1662 | loop_destroy (EV_A); |
1174 | } |
1663 | } |
1175 | |
1664 | |
1176 | void |
1665 | void |
1177 | ev_default_fork (void) |
1666 | ev_default_fork (void) |
… | |
… | |
1179 | #if EV_MULTIPLICITY |
1668 | #if EV_MULTIPLICITY |
1180 | struct ev_loop *loop = ev_default_loop_ptr; |
1669 | struct ev_loop *loop = ev_default_loop_ptr; |
1181 | #endif |
1670 | #endif |
1182 | |
1671 | |
1183 | if (backend) |
1672 | if (backend) |
1184 | postfork = 1; |
1673 | postfork = 1; /* must be in line with ev_loop_fork */ |
1185 | } |
1674 | } |
1186 | |
1675 | |
1187 | /*****************************************************************************/ |
1676 | /*****************************************************************************/ |
1188 | |
1677 | |
1189 | void |
1678 | void |
… | |
… | |
1206 | { |
1695 | { |
1207 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
1696 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
1208 | |
1697 | |
1209 | p->w->pending = 0; |
1698 | p->w->pending = 0; |
1210 | EV_CB_INVOKE (p->w, p->events); |
1699 | EV_CB_INVOKE (p->w, p->events); |
|
|
1700 | EV_FREQUENT_CHECK; |
1211 | } |
1701 | } |
1212 | } |
1702 | } |
1213 | } |
1703 | } |
1214 | |
|
|
1215 | void inline_size |
|
|
1216 | timers_reify (EV_P) |
|
|
1217 | { |
|
|
1218 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
|
|
1219 | { |
|
|
1220 | ev_timer *w = timers [0]; |
|
|
1221 | |
|
|
1222 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1223 | |
|
|
1224 | /* first reschedule or stop timer */ |
|
|
1225 | if (w->repeat) |
|
|
1226 | { |
|
|
1227 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1228 | |
|
|
1229 | ((WT)w)->at += w->repeat; |
|
|
1230 | if (((WT)w)->at < mn_now) |
|
|
1231 | ((WT)w)->at = mn_now; |
|
|
1232 | |
|
|
1233 | downheap ((WT *)timers, timercnt, 0); |
|
|
1234 | } |
|
|
1235 | else |
|
|
1236 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1237 | |
|
|
1238 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
|
|
1239 | } |
|
|
1240 | } |
|
|
1241 | |
|
|
1242 | #if EV_PERIODIC_ENABLE |
|
|
1243 | void inline_size |
|
|
1244 | periodics_reify (EV_P) |
|
|
1245 | { |
|
|
1246 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
|
|
1247 | { |
|
|
1248 | ev_periodic *w = periodics [0]; |
|
|
1249 | |
|
|
1250 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
1251 | |
|
|
1252 | /* first reschedule or stop timer */ |
|
|
1253 | if (w->reschedule_cb) |
|
|
1254 | { |
|
|
1255 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); |
|
|
1256 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
|
|
1257 | downheap ((WT *)periodics, periodiccnt, 0); |
|
|
1258 | } |
|
|
1259 | else if (w->interval) |
|
|
1260 | { |
|
|
1261 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1262 | if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval; |
|
|
1263 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
|
|
1264 | downheap ((WT *)periodics, periodiccnt, 0); |
|
|
1265 | } |
|
|
1266 | else |
|
|
1267 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1268 | |
|
|
1269 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
|
|
1270 | } |
|
|
1271 | } |
|
|
1272 | |
|
|
1273 | static void noinline |
|
|
1274 | periodics_reschedule (EV_P) |
|
|
1275 | { |
|
|
1276 | int i; |
|
|
1277 | |
|
|
1278 | /* adjust periodics after time jump */ |
|
|
1279 | for (i = 0; i < periodiccnt; ++i) |
|
|
1280 | { |
|
|
1281 | ev_periodic *w = periodics [i]; |
|
|
1282 | |
|
|
1283 | if (w->reschedule_cb) |
|
|
1284 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
|
|
1285 | else if (w->interval) |
|
|
1286 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1287 | } |
|
|
1288 | |
|
|
1289 | /* now rebuild the heap */ |
|
|
1290 | for (i = periodiccnt >> 1; i--; ) |
|
|
1291 | downheap ((WT *)periodics, periodiccnt, i); |
|
|
1292 | } |
|
|
1293 | #endif |
|
|
1294 | |
1704 | |
1295 | #if EV_IDLE_ENABLE |
1705 | #if EV_IDLE_ENABLE |
1296 | void inline_size |
1706 | void inline_size |
1297 | idle_reify (EV_P) |
1707 | idle_reify (EV_P) |
1298 | { |
1708 | { |
… | |
… | |
1310 | queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE); |
1720 | queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE); |
1311 | break; |
1721 | break; |
1312 | } |
1722 | } |
1313 | } |
1723 | } |
1314 | } |
1724 | } |
|
|
1725 | } |
|
|
1726 | #endif |
|
|
1727 | |
|
|
1728 | void inline_size |
|
|
1729 | timers_reify (EV_P) |
|
|
1730 | { |
|
|
1731 | EV_FREQUENT_CHECK; |
|
|
1732 | |
|
|
1733 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
|
|
1734 | { |
|
|
1735 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
|
|
1736 | |
|
|
1737 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1738 | |
|
|
1739 | /* first reschedule or stop timer */ |
|
|
1740 | if (w->repeat) |
|
|
1741 | { |
|
|
1742 | ev_at (w) += w->repeat; |
|
|
1743 | if (ev_at (w) < mn_now) |
|
|
1744 | ev_at (w) = mn_now; |
|
|
1745 | |
|
|
1746 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1747 | |
|
|
1748 | ANHE_at_cache (timers [HEAP0]); |
|
|
1749 | downheap (timers, timercnt, HEAP0); |
|
|
1750 | } |
|
|
1751 | else |
|
|
1752 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1753 | |
|
|
1754 | EV_FREQUENT_CHECK; |
|
|
1755 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
|
|
1756 | } |
|
|
1757 | } |
|
|
1758 | |
|
|
1759 | #if EV_PERIODIC_ENABLE |
|
|
1760 | void inline_size |
|
|
1761 | periodics_reify (EV_P) |
|
|
1762 | { |
|
|
1763 | EV_FREQUENT_CHECK; |
|
|
1764 | |
|
|
1765 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
|
|
1766 | { |
|
|
1767 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
|
|
1768 | |
|
|
1769 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
1770 | |
|
|
1771 | /* first reschedule or stop timer */ |
|
|
1772 | if (w->reschedule_cb) |
|
|
1773 | { |
|
|
1774 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
1775 | |
|
|
1776 | assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
|
|
1777 | |
|
|
1778 | ANHE_at_cache (periodics [HEAP0]); |
|
|
1779 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1780 | } |
|
|
1781 | else if (w->interval) |
|
|
1782 | { |
|
|
1783 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1784 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
1785 | /* this might happen because of floating point inexactness */ |
|
|
1786 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
1787 | { |
|
|
1788 | ev_at (w) += w->interval; |
|
|
1789 | |
|
|
1790 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
1791 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
1792 | /* has effectively asked to get triggered more often than possible */ |
|
|
1793 | if (ev_at (w) < ev_rt_now) |
|
|
1794 | ev_at (w) = ev_rt_now; |
|
|
1795 | } |
|
|
1796 | |
|
|
1797 | ANHE_at_cache (periodics [HEAP0]); |
|
|
1798 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1799 | } |
|
|
1800 | else |
|
|
1801 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1802 | |
|
|
1803 | EV_FREQUENT_CHECK; |
|
|
1804 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
|
|
1805 | } |
|
|
1806 | } |
|
|
1807 | |
|
|
1808 | static void noinline |
|
|
1809 | periodics_reschedule (EV_P) |
|
|
1810 | { |
|
|
1811 | int i; |
|
|
1812 | |
|
|
1813 | /* adjust periodics after time jump */ |
|
|
1814 | for (i = HEAP0; i < periodiccnt + HEAP0; ++i) |
|
|
1815 | { |
|
|
1816 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
|
|
1817 | |
|
|
1818 | if (w->reschedule_cb) |
|
|
1819 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
1820 | else if (w->interval) |
|
|
1821 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1822 | |
|
|
1823 | ANHE_at_cache (periodics [i]); |
|
|
1824 | } |
|
|
1825 | |
|
|
1826 | reheap (periodics, periodiccnt); |
1315 | } |
1827 | } |
1316 | #endif |
1828 | #endif |
1317 | |
1829 | |
1318 | void inline_speed |
1830 | void inline_speed |
1319 | time_update (EV_P_ ev_tstamp max_block) |
1831 | time_update (EV_P_ ev_tstamp max_block) |
… | |
… | |
1348 | */ |
1860 | */ |
1349 | for (i = 4; --i; ) |
1861 | for (i = 4; --i; ) |
1350 | { |
1862 | { |
1351 | rtmn_diff = ev_rt_now - mn_now; |
1863 | rtmn_diff = ev_rt_now - mn_now; |
1352 | |
1864 | |
1353 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1865 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
1354 | return; /* all is well */ |
1866 | return; /* all is well */ |
1355 | |
1867 | |
1356 | ev_rt_now = ev_time (); |
1868 | ev_rt_now = ev_time (); |
1357 | mn_now = get_clock (); |
1869 | mn_now = get_clock (); |
1358 | now_floor = mn_now; |
1870 | now_floor = mn_now; |
… | |
… | |
1374 | #if EV_PERIODIC_ENABLE |
1886 | #if EV_PERIODIC_ENABLE |
1375 | periodics_reschedule (EV_A); |
1887 | periodics_reschedule (EV_A); |
1376 | #endif |
1888 | #endif |
1377 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
1889 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
1378 | for (i = 0; i < timercnt; ++i) |
1890 | for (i = 0; i < timercnt; ++i) |
|
|
1891 | { |
|
|
1892 | ANHE *he = timers + i + HEAP0; |
1379 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
1893 | ANHE_w (*he)->at += ev_rt_now - mn_now; |
|
|
1894 | ANHE_at_cache (*he); |
|
|
1895 | } |
1380 | } |
1896 | } |
1381 | |
1897 | |
1382 | mn_now = ev_rt_now; |
1898 | mn_now = ev_rt_now; |
1383 | } |
1899 | } |
1384 | } |
1900 | } |
… | |
… | |
1398 | static int loop_done; |
1914 | static int loop_done; |
1399 | |
1915 | |
1400 | void |
1916 | void |
1401 | ev_loop (EV_P_ int flags) |
1917 | ev_loop (EV_P_ int flags) |
1402 | { |
1918 | { |
1403 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) |
1919 | loop_done = EVUNLOOP_CANCEL; |
1404 | ? EVUNLOOP_ONE |
|
|
1405 | : EVUNLOOP_CANCEL; |
|
|
1406 | |
1920 | |
1407 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
1921 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
1408 | |
1922 | |
1409 | do |
1923 | do |
1410 | { |
1924 | { |
|
|
1925 | #if EV_VERIFY >= 2 |
|
|
1926 | ev_loop_verify (EV_A); |
|
|
1927 | #endif |
|
|
1928 | |
1411 | #ifndef _WIN32 |
1929 | #ifndef _WIN32 |
1412 | if (expect_false (curpid)) /* penalise the forking check even more */ |
1930 | if (expect_false (curpid)) /* penalise the forking check even more */ |
1413 | if (expect_false (getpid () != curpid)) |
1931 | if (expect_false (getpid () != curpid)) |
1414 | { |
1932 | { |
1415 | curpid = getpid (); |
1933 | curpid = getpid (); |
… | |
… | |
1444 | /* update fd-related kernel structures */ |
1962 | /* update fd-related kernel structures */ |
1445 | fd_reify (EV_A); |
1963 | fd_reify (EV_A); |
1446 | |
1964 | |
1447 | /* calculate blocking time */ |
1965 | /* calculate blocking time */ |
1448 | { |
1966 | { |
1449 | ev_tstamp block; |
1967 | ev_tstamp waittime = 0.; |
|
|
1968 | ev_tstamp sleeptime = 0.; |
1450 | |
1969 | |
1451 | if (expect_false (flags & EVLOOP_NONBLOCK || idleall || !activecnt)) |
1970 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
1452 | block = 0.; /* do not block at all */ |
|
|
1453 | else |
|
|
1454 | { |
1971 | { |
1455 | /* update time to cancel out callback processing overhead */ |
1972 | /* update time to cancel out callback processing overhead */ |
1456 | time_update (EV_A_ 1e100); |
1973 | time_update (EV_A_ 1e100); |
1457 | |
1974 | |
1458 | block = MAX_BLOCKTIME; |
1975 | waittime = MAX_BLOCKTIME; |
1459 | |
1976 | |
1460 | if (timercnt) |
1977 | if (timercnt) |
1461 | { |
1978 | { |
1462 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
1979 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
1463 | if (block > to) block = to; |
1980 | if (waittime > to) waittime = to; |
1464 | } |
1981 | } |
1465 | |
1982 | |
1466 | #if EV_PERIODIC_ENABLE |
1983 | #if EV_PERIODIC_ENABLE |
1467 | if (periodiccnt) |
1984 | if (periodiccnt) |
1468 | { |
1985 | { |
1469 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
1986 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
1470 | if (block > to) block = to; |
1987 | if (waittime > to) waittime = to; |
1471 | } |
1988 | } |
1472 | #endif |
1989 | #endif |
1473 | |
1990 | |
1474 | if (expect_false (block < 0.)) block = 0.; |
1991 | if (expect_false (waittime < timeout_blocktime)) |
|
|
1992 | waittime = timeout_blocktime; |
|
|
1993 | |
|
|
1994 | sleeptime = waittime - backend_fudge; |
|
|
1995 | |
|
|
1996 | if (expect_true (sleeptime > io_blocktime)) |
|
|
1997 | sleeptime = io_blocktime; |
|
|
1998 | |
|
|
1999 | if (sleeptime) |
|
|
2000 | { |
|
|
2001 | ev_sleep (sleeptime); |
|
|
2002 | waittime -= sleeptime; |
|
|
2003 | } |
1475 | } |
2004 | } |
1476 | |
2005 | |
1477 | ++loop_count; |
2006 | ++loop_count; |
1478 | backend_poll (EV_A_ block); |
2007 | backend_poll (EV_A_ waittime); |
1479 | |
2008 | |
1480 | /* update ev_rt_now, do magic */ |
2009 | /* update ev_rt_now, do magic */ |
1481 | time_update (EV_A_ block); |
2010 | time_update (EV_A_ waittime + sleeptime); |
1482 | } |
2011 | } |
1483 | |
2012 | |
1484 | /* queue pending timers and reschedule them */ |
2013 | /* queue pending timers and reschedule them */ |
1485 | timers_reify (EV_A); /* relative timers called last */ |
2014 | timers_reify (EV_A); /* relative timers called last */ |
1486 | #if EV_PERIODIC_ENABLE |
2015 | #if EV_PERIODIC_ENABLE |
… | |
… | |
1495 | /* queue check watchers, to be executed first */ |
2024 | /* queue check watchers, to be executed first */ |
1496 | if (expect_false (checkcnt)) |
2025 | if (expect_false (checkcnt)) |
1497 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2026 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1498 | |
2027 | |
1499 | call_pending (EV_A); |
2028 | call_pending (EV_A); |
1500 | |
|
|
1501 | } |
2029 | } |
1502 | while (expect_true (activecnt && !loop_done)); |
2030 | while (expect_true ( |
|
|
2031 | activecnt |
|
|
2032 | && !loop_done |
|
|
2033 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
|
|
2034 | )); |
1503 | |
2035 | |
1504 | if (loop_done == EVUNLOOP_ONE) |
2036 | if (loop_done == EVUNLOOP_ONE) |
1505 | loop_done = EVUNLOOP_CANCEL; |
2037 | loop_done = EVUNLOOP_CANCEL; |
1506 | } |
2038 | } |
1507 | |
2039 | |
… | |
… | |
1596 | if (expect_false (ev_is_active (w))) |
2128 | if (expect_false (ev_is_active (w))) |
1597 | return; |
2129 | return; |
1598 | |
2130 | |
1599 | assert (("ev_io_start called with negative fd", fd >= 0)); |
2131 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1600 | |
2132 | |
|
|
2133 | EV_FREQUENT_CHECK; |
|
|
2134 | |
1601 | ev_start (EV_A_ (W)w, 1); |
2135 | ev_start (EV_A_ (W)w, 1); |
1602 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
2136 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
1603 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
2137 | wlist_add (&anfds[fd].head, (WL)w); |
1604 | |
2138 | |
1605 | fd_change (EV_A_ fd); |
2139 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
|
|
2140 | w->events &= ~EV_IOFDSET; |
|
|
2141 | |
|
|
2142 | EV_FREQUENT_CHECK; |
1606 | } |
2143 | } |
1607 | |
2144 | |
1608 | void noinline |
2145 | void noinline |
1609 | ev_io_stop (EV_P_ ev_io *w) |
2146 | ev_io_stop (EV_P_ ev_io *w) |
1610 | { |
2147 | { |
1611 | clear_pending (EV_A_ (W)w); |
2148 | clear_pending (EV_A_ (W)w); |
1612 | if (expect_false (!ev_is_active (w))) |
2149 | if (expect_false (!ev_is_active (w))) |
1613 | return; |
2150 | return; |
1614 | |
2151 | |
1615 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2152 | assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
1616 | |
2153 | |
|
|
2154 | EV_FREQUENT_CHECK; |
|
|
2155 | |
1617 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
2156 | wlist_del (&anfds[w->fd].head, (WL)w); |
1618 | ev_stop (EV_A_ (W)w); |
2157 | ev_stop (EV_A_ (W)w); |
1619 | |
2158 | |
1620 | fd_change (EV_A_ w->fd); |
2159 | fd_change (EV_A_ w->fd, 1); |
|
|
2160 | |
|
|
2161 | EV_FREQUENT_CHECK; |
1621 | } |
2162 | } |
1622 | |
2163 | |
1623 | void noinline |
2164 | void noinline |
1624 | ev_timer_start (EV_P_ ev_timer *w) |
2165 | ev_timer_start (EV_P_ ev_timer *w) |
1625 | { |
2166 | { |
1626 | if (expect_false (ev_is_active (w))) |
2167 | if (expect_false (ev_is_active (w))) |
1627 | return; |
2168 | return; |
1628 | |
2169 | |
1629 | ((WT)w)->at += mn_now; |
2170 | ev_at (w) += mn_now; |
1630 | |
2171 | |
1631 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2172 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1632 | |
2173 | |
|
|
2174 | EV_FREQUENT_CHECK; |
|
|
2175 | |
|
|
2176 | ++timercnt; |
1633 | ev_start (EV_A_ (W)w, ++timercnt); |
2177 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
1634 | array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2); |
2178 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
1635 | timers [timercnt - 1] = w; |
2179 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
1636 | upheap ((WT *)timers, timercnt - 1); |
2180 | ANHE_at_cache (timers [ev_active (w)]); |
|
|
2181 | upheap (timers, ev_active (w)); |
1637 | |
2182 | |
|
|
2183 | EV_FREQUENT_CHECK; |
|
|
2184 | |
1638 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
2185 | /*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
1639 | } |
2186 | } |
1640 | |
2187 | |
1641 | void noinline |
2188 | void noinline |
1642 | ev_timer_stop (EV_P_ ev_timer *w) |
2189 | ev_timer_stop (EV_P_ ev_timer *w) |
1643 | { |
2190 | { |
1644 | clear_pending (EV_A_ (W)w); |
2191 | clear_pending (EV_A_ (W)w); |
1645 | if (expect_false (!ev_is_active (w))) |
2192 | if (expect_false (!ev_is_active (w))) |
1646 | return; |
2193 | return; |
1647 | |
2194 | |
1648 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
2195 | EV_FREQUENT_CHECK; |
1649 | |
2196 | |
1650 | { |
2197 | { |
1651 | int active = ((W)w)->active; |
2198 | int active = ev_active (w); |
1652 | |
2199 | |
|
|
2200 | assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
|
|
2201 | |
|
|
2202 | --timercnt; |
|
|
2203 | |
1653 | if (expect_true (--active < --timercnt)) |
2204 | if (expect_true (active < timercnt + HEAP0)) |
1654 | { |
2205 | { |
1655 | timers [active] = timers [timercnt]; |
2206 | timers [active] = timers [timercnt + HEAP0]; |
1656 | adjustheap ((WT *)timers, timercnt, active); |
2207 | adjustheap (timers, timercnt, active); |
1657 | } |
2208 | } |
1658 | } |
2209 | } |
1659 | |
2210 | |
1660 | ((WT)w)->at -= mn_now; |
2211 | EV_FREQUENT_CHECK; |
|
|
2212 | |
|
|
2213 | ev_at (w) -= mn_now; |
1661 | |
2214 | |
1662 | ev_stop (EV_A_ (W)w); |
2215 | ev_stop (EV_A_ (W)w); |
1663 | } |
2216 | } |
1664 | |
2217 | |
1665 | void noinline |
2218 | void noinline |
1666 | ev_timer_again (EV_P_ ev_timer *w) |
2219 | ev_timer_again (EV_P_ ev_timer *w) |
1667 | { |
2220 | { |
|
|
2221 | EV_FREQUENT_CHECK; |
|
|
2222 | |
1668 | if (ev_is_active (w)) |
2223 | if (ev_is_active (w)) |
1669 | { |
2224 | { |
1670 | if (w->repeat) |
2225 | if (w->repeat) |
1671 | { |
2226 | { |
1672 | ((WT)w)->at = mn_now + w->repeat; |
2227 | ev_at (w) = mn_now + w->repeat; |
|
|
2228 | ANHE_at_cache (timers [ev_active (w)]); |
1673 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
2229 | adjustheap (timers, timercnt, ev_active (w)); |
1674 | } |
2230 | } |
1675 | else |
2231 | else |
1676 | ev_timer_stop (EV_A_ w); |
2232 | ev_timer_stop (EV_A_ w); |
1677 | } |
2233 | } |
1678 | else if (w->repeat) |
2234 | else if (w->repeat) |
1679 | { |
2235 | { |
1680 | w->at = w->repeat; |
2236 | ev_at (w) = w->repeat; |
1681 | ev_timer_start (EV_A_ w); |
2237 | ev_timer_start (EV_A_ w); |
1682 | } |
2238 | } |
|
|
2239 | |
|
|
2240 | EV_FREQUENT_CHECK; |
1683 | } |
2241 | } |
1684 | |
2242 | |
1685 | #if EV_PERIODIC_ENABLE |
2243 | #if EV_PERIODIC_ENABLE |
1686 | void noinline |
2244 | void noinline |
1687 | ev_periodic_start (EV_P_ ev_periodic *w) |
2245 | ev_periodic_start (EV_P_ ev_periodic *w) |
1688 | { |
2246 | { |
1689 | if (expect_false (ev_is_active (w))) |
2247 | if (expect_false (ev_is_active (w))) |
1690 | return; |
2248 | return; |
1691 | |
2249 | |
1692 | if (w->reschedule_cb) |
2250 | if (w->reschedule_cb) |
1693 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
2251 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1694 | else if (w->interval) |
2252 | else if (w->interval) |
1695 | { |
2253 | { |
1696 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2254 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1697 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2255 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1698 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2256 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1699 | } |
2257 | } |
1700 | else |
2258 | else |
1701 | ((WT)w)->at = w->offset; |
2259 | ev_at (w) = w->offset; |
1702 | |
2260 | |
|
|
2261 | EV_FREQUENT_CHECK; |
|
|
2262 | |
|
|
2263 | ++periodiccnt; |
1703 | ev_start (EV_A_ (W)w, ++periodiccnt); |
2264 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
1704 | array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); |
2265 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
1705 | periodics [periodiccnt - 1] = w; |
2266 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
1706 | upheap ((WT *)periodics, periodiccnt - 1); |
2267 | ANHE_at_cache (periodics [ev_active (w)]); |
|
|
2268 | upheap (periodics, ev_active (w)); |
1707 | |
2269 | |
|
|
2270 | EV_FREQUENT_CHECK; |
|
|
2271 | |
1708 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
2272 | /*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
1709 | } |
2273 | } |
1710 | |
2274 | |
1711 | void noinline |
2275 | void noinline |
1712 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2276 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1713 | { |
2277 | { |
1714 | clear_pending (EV_A_ (W)w); |
2278 | clear_pending (EV_A_ (W)w); |
1715 | if (expect_false (!ev_is_active (w))) |
2279 | if (expect_false (!ev_is_active (w))) |
1716 | return; |
2280 | return; |
1717 | |
2281 | |
1718 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
2282 | EV_FREQUENT_CHECK; |
1719 | |
2283 | |
1720 | { |
2284 | { |
1721 | int active = ((W)w)->active; |
2285 | int active = ev_active (w); |
1722 | |
2286 | |
|
|
2287 | assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
|
|
2288 | |
|
|
2289 | --periodiccnt; |
|
|
2290 | |
1723 | if (expect_true (--active < --periodiccnt)) |
2291 | if (expect_true (active < periodiccnt + HEAP0)) |
1724 | { |
2292 | { |
1725 | periodics [active] = periodics [periodiccnt]; |
2293 | periodics [active] = periodics [periodiccnt + HEAP0]; |
1726 | adjustheap ((WT *)periodics, periodiccnt, active); |
2294 | adjustheap (periodics, periodiccnt, active); |
1727 | } |
2295 | } |
1728 | } |
2296 | } |
|
|
2297 | |
|
|
2298 | EV_FREQUENT_CHECK; |
1729 | |
2299 | |
1730 | ev_stop (EV_A_ (W)w); |
2300 | ev_stop (EV_A_ (W)w); |
1731 | } |
2301 | } |
1732 | |
2302 | |
1733 | void noinline |
2303 | void noinline |
… | |
… | |
1752 | if (expect_false (ev_is_active (w))) |
2322 | if (expect_false (ev_is_active (w))) |
1753 | return; |
2323 | return; |
1754 | |
2324 | |
1755 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2325 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1756 | |
2326 | |
|
|
2327 | evpipe_init (EV_A); |
|
|
2328 | |
|
|
2329 | EV_FREQUENT_CHECK; |
|
|
2330 | |
|
|
2331 | { |
|
|
2332 | #ifndef _WIN32 |
|
|
2333 | sigset_t full, prev; |
|
|
2334 | sigfillset (&full); |
|
|
2335 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2336 | #endif |
|
|
2337 | |
|
|
2338 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
|
|
2339 | |
|
|
2340 | #ifndef _WIN32 |
|
|
2341 | sigprocmask (SIG_SETMASK, &prev, 0); |
|
|
2342 | #endif |
|
|
2343 | } |
|
|
2344 | |
1757 | ev_start (EV_A_ (W)w, 1); |
2345 | ev_start (EV_A_ (W)w, 1); |
1758 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
|
|
1759 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
2346 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
1760 | |
2347 | |
1761 | if (!((WL)w)->next) |
2348 | if (!((WL)w)->next) |
1762 | { |
2349 | { |
1763 | #if _WIN32 |
2350 | #if _WIN32 |
1764 | signal (w->signum, sighandler); |
2351 | signal (w->signum, ev_sighandler); |
1765 | #else |
2352 | #else |
1766 | struct sigaction sa; |
2353 | struct sigaction sa; |
1767 | sa.sa_handler = sighandler; |
2354 | sa.sa_handler = ev_sighandler; |
1768 | sigfillset (&sa.sa_mask); |
2355 | sigfillset (&sa.sa_mask); |
1769 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2356 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1770 | sigaction (w->signum, &sa, 0); |
2357 | sigaction (w->signum, &sa, 0); |
1771 | #endif |
2358 | #endif |
1772 | } |
2359 | } |
|
|
2360 | |
|
|
2361 | EV_FREQUENT_CHECK; |
1773 | } |
2362 | } |
1774 | |
2363 | |
1775 | void noinline |
2364 | void noinline |
1776 | ev_signal_stop (EV_P_ ev_signal *w) |
2365 | ev_signal_stop (EV_P_ ev_signal *w) |
1777 | { |
2366 | { |
1778 | clear_pending (EV_A_ (W)w); |
2367 | clear_pending (EV_A_ (W)w); |
1779 | if (expect_false (!ev_is_active (w))) |
2368 | if (expect_false (!ev_is_active (w))) |
1780 | return; |
2369 | return; |
1781 | |
2370 | |
|
|
2371 | EV_FREQUENT_CHECK; |
|
|
2372 | |
1782 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
2373 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
1783 | ev_stop (EV_A_ (W)w); |
2374 | ev_stop (EV_A_ (W)w); |
1784 | |
2375 | |
1785 | if (!signals [w->signum - 1].head) |
2376 | if (!signals [w->signum - 1].head) |
1786 | signal (w->signum, SIG_DFL); |
2377 | signal (w->signum, SIG_DFL); |
|
|
2378 | |
|
|
2379 | EV_FREQUENT_CHECK; |
1787 | } |
2380 | } |
1788 | |
2381 | |
1789 | void |
2382 | void |
1790 | ev_child_start (EV_P_ ev_child *w) |
2383 | ev_child_start (EV_P_ ev_child *w) |
1791 | { |
2384 | { |
… | |
… | |
1793 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2386 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1794 | #endif |
2387 | #endif |
1795 | if (expect_false (ev_is_active (w))) |
2388 | if (expect_false (ev_is_active (w))) |
1796 | return; |
2389 | return; |
1797 | |
2390 | |
|
|
2391 | EV_FREQUENT_CHECK; |
|
|
2392 | |
1798 | ev_start (EV_A_ (W)w, 1); |
2393 | ev_start (EV_A_ (W)w, 1); |
1799 | wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2394 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
|
|
2395 | |
|
|
2396 | EV_FREQUENT_CHECK; |
1800 | } |
2397 | } |
1801 | |
2398 | |
1802 | void |
2399 | void |
1803 | ev_child_stop (EV_P_ ev_child *w) |
2400 | ev_child_stop (EV_P_ ev_child *w) |
1804 | { |
2401 | { |
1805 | clear_pending (EV_A_ (W)w); |
2402 | clear_pending (EV_A_ (W)w); |
1806 | if (expect_false (!ev_is_active (w))) |
2403 | if (expect_false (!ev_is_active (w))) |
1807 | return; |
2404 | return; |
1808 | |
2405 | |
|
|
2406 | EV_FREQUENT_CHECK; |
|
|
2407 | |
1809 | wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2408 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1810 | ev_stop (EV_A_ (W)w); |
2409 | ev_stop (EV_A_ (W)w); |
|
|
2410 | |
|
|
2411 | EV_FREQUENT_CHECK; |
1811 | } |
2412 | } |
1812 | |
2413 | |
1813 | #if EV_STAT_ENABLE |
2414 | #if EV_STAT_ENABLE |
1814 | |
2415 | |
1815 | # ifdef _WIN32 |
2416 | # ifdef _WIN32 |
… | |
… | |
1833 | if (w->wd < 0) |
2434 | if (w->wd < 0) |
1834 | { |
2435 | { |
1835 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2436 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
1836 | |
2437 | |
1837 | /* monitor some parent directory for speedup hints */ |
2438 | /* monitor some parent directory for speedup hints */ |
|
|
2439 | /* note that exceeding the hardcoded limit is not a correctness issue, */ |
|
|
2440 | /* but an efficiency issue only */ |
1838 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2441 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
1839 | { |
2442 | { |
1840 | char path [4096]; |
2443 | char path [4096]; |
1841 | strcpy (path, w->path); |
2444 | strcpy (path, w->path); |
1842 | |
2445 | |
… | |
… | |
1968 | } |
2571 | } |
1969 | |
2572 | |
1970 | } |
2573 | } |
1971 | } |
2574 | } |
1972 | |
2575 | |
|
|
2576 | #endif |
|
|
2577 | |
|
|
2578 | #ifdef _WIN32 |
|
|
2579 | # define EV_LSTAT(p,b) _stati64 (p, b) |
|
|
2580 | #else |
|
|
2581 | # define EV_LSTAT(p,b) lstat (p, b) |
1973 | #endif |
2582 | #endif |
1974 | |
2583 | |
1975 | void |
2584 | void |
1976 | ev_stat_stat (EV_P_ ev_stat *w) |
2585 | ev_stat_stat (EV_P_ ev_stat *w) |
1977 | { |
2586 | { |
… | |
… | |
2041 | else |
2650 | else |
2042 | #endif |
2651 | #endif |
2043 | ev_timer_start (EV_A_ &w->timer); |
2652 | ev_timer_start (EV_A_ &w->timer); |
2044 | |
2653 | |
2045 | ev_start (EV_A_ (W)w, 1); |
2654 | ev_start (EV_A_ (W)w, 1); |
|
|
2655 | |
|
|
2656 | EV_FREQUENT_CHECK; |
2046 | } |
2657 | } |
2047 | |
2658 | |
2048 | void |
2659 | void |
2049 | ev_stat_stop (EV_P_ ev_stat *w) |
2660 | ev_stat_stop (EV_P_ ev_stat *w) |
2050 | { |
2661 | { |
2051 | clear_pending (EV_A_ (W)w); |
2662 | clear_pending (EV_A_ (W)w); |
2052 | if (expect_false (!ev_is_active (w))) |
2663 | if (expect_false (!ev_is_active (w))) |
2053 | return; |
2664 | return; |
2054 | |
2665 | |
|
|
2666 | EV_FREQUENT_CHECK; |
|
|
2667 | |
2055 | #if EV_USE_INOTIFY |
2668 | #if EV_USE_INOTIFY |
2056 | infy_del (EV_A_ w); |
2669 | infy_del (EV_A_ w); |
2057 | #endif |
2670 | #endif |
2058 | ev_timer_stop (EV_A_ &w->timer); |
2671 | ev_timer_stop (EV_A_ &w->timer); |
2059 | |
2672 | |
2060 | ev_stop (EV_A_ (W)w); |
2673 | ev_stop (EV_A_ (W)w); |
|
|
2674 | |
|
|
2675 | EV_FREQUENT_CHECK; |
2061 | } |
2676 | } |
2062 | #endif |
2677 | #endif |
2063 | |
2678 | |
2064 | #if EV_IDLE_ENABLE |
2679 | #if EV_IDLE_ENABLE |
2065 | void |
2680 | void |
… | |
… | |
2067 | { |
2682 | { |
2068 | if (expect_false (ev_is_active (w))) |
2683 | if (expect_false (ev_is_active (w))) |
2069 | return; |
2684 | return; |
2070 | |
2685 | |
2071 | pri_adjust (EV_A_ (W)w); |
2686 | pri_adjust (EV_A_ (W)w); |
|
|
2687 | |
|
|
2688 | EV_FREQUENT_CHECK; |
2072 | |
2689 | |
2073 | { |
2690 | { |
2074 | int active = ++idlecnt [ABSPRI (w)]; |
2691 | int active = ++idlecnt [ABSPRI (w)]; |
2075 | |
2692 | |
2076 | ++idleall; |
2693 | ++idleall; |
2077 | ev_start (EV_A_ (W)w, active); |
2694 | ev_start (EV_A_ (W)w, active); |
2078 | |
2695 | |
2079 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
2696 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
2080 | idles [ABSPRI (w)][active - 1] = w; |
2697 | idles [ABSPRI (w)][active - 1] = w; |
2081 | } |
2698 | } |
|
|
2699 | |
|
|
2700 | EV_FREQUENT_CHECK; |
2082 | } |
2701 | } |
2083 | |
2702 | |
2084 | void |
2703 | void |
2085 | ev_idle_stop (EV_P_ ev_idle *w) |
2704 | ev_idle_stop (EV_P_ ev_idle *w) |
2086 | { |
2705 | { |
2087 | clear_pending (EV_A_ (W)w); |
2706 | clear_pending (EV_A_ (W)w); |
2088 | if (expect_false (!ev_is_active (w))) |
2707 | if (expect_false (!ev_is_active (w))) |
2089 | return; |
2708 | return; |
2090 | |
2709 | |
|
|
2710 | EV_FREQUENT_CHECK; |
|
|
2711 | |
2091 | { |
2712 | { |
2092 | int active = ((W)w)->active; |
2713 | int active = ev_active (w); |
2093 | |
2714 | |
2094 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2715 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2095 | ((W)idles [ABSPRI (w)][active - 1])->active = active; |
2716 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
2096 | |
2717 | |
2097 | ev_stop (EV_A_ (W)w); |
2718 | ev_stop (EV_A_ (W)w); |
2098 | --idleall; |
2719 | --idleall; |
2099 | } |
2720 | } |
|
|
2721 | |
|
|
2722 | EV_FREQUENT_CHECK; |
2100 | } |
2723 | } |
2101 | #endif |
2724 | #endif |
2102 | |
2725 | |
2103 | void |
2726 | void |
2104 | ev_prepare_start (EV_P_ ev_prepare *w) |
2727 | ev_prepare_start (EV_P_ ev_prepare *w) |
2105 | { |
2728 | { |
2106 | if (expect_false (ev_is_active (w))) |
2729 | if (expect_false (ev_is_active (w))) |
2107 | return; |
2730 | return; |
|
|
2731 | |
|
|
2732 | EV_FREQUENT_CHECK; |
2108 | |
2733 | |
2109 | ev_start (EV_A_ (W)w, ++preparecnt); |
2734 | ev_start (EV_A_ (W)w, ++preparecnt); |
2110 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
2735 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
2111 | prepares [preparecnt - 1] = w; |
2736 | prepares [preparecnt - 1] = w; |
|
|
2737 | |
|
|
2738 | EV_FREQUENT_CHECK; |
2112 | } |
2739 | } |
2113 | |
2740 | |
2114 | void |
2741 | void |
2115 | ev_prepare_stop (EV_P_ ev_prepare *w) |
2742 | ev_prepare_stop (EV_P_ ev_prepare *w) |
2116 | { |
2743 | { |
2117 | clear_pending (EV_A_ (W)w); |
2744 | clear_pending (EV_A_ (W)w); |
2118 | if (expect_false (!ev_is_active (w))) |
2745 | if (expect_false (!ev_is_active (w))) |
2119 | return; |
2746 | return; |
2120 | |
2747 | |
|
|
2748 | EV_FREQUENT_CHECK; |
|
|
2749 | |
2121 | { |
2750 | { |
2122 | int active = ((W)w)->active; |
2751 | int active = ev_active (w); |
|
|
2752 | |
2123 | prepares [active - 1] = prepares [--preparecnt]; |
2753 | prepares [active - 1] = prepares [--preparecnt]; |
2124 | ((W)prepares [active - 1])->active = active; |
2754 | ev_active (prepares [active - 1]) = active; |
2125 | } |
2755 | } |
2126 | |
2756 | |
2127 | ev_stop (EV_A_ (W)w); |
2757 | ev_stop (EV_A_ (W)w); |
|
|
2758 | |
|
|
2759 | EV_FREQUENT_CHECK; |
2128 | } |
2760 | } |
2129 | |
2761 | |
2130 | void |
2762 | void |
2131 | ev_check_start (EV_P_ ev_check *w) |
2763 | ev_check_start (EV_P_ ev_check *w) |
2132 | { |
2764 | { |
2133 | if (expect_false (ev_is_active (w))) |
2765 | if (expect_false (ev_is_active (w))) |
2134 | return; |
2766 | return; |
|
|
2767 | |
|
|
2768 | EV_FREQUENT_CHECK; |
2135 | |
2769 | |
2136 | ev_start (EV_A_ (W)w, ++checkcnt); |
2770 | ev_start (EV_A_ (W)w, ++checkcnt); |
2137 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
2771 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
2138 | checks [checkcnt - 1] = w; |
2772 | checks [checkcnt - 1] = w; |
|
|
2773 | |
|
|
2774 | EV_FREQUENT_CHECK; |
2139 | } |
2775 | } |
2140 | |
2776 | |
2141 | void |
2777 | void |
2142 | ev_check_stop (EV_P_ ev_check *w) |
2778 | ev_check_stop (EV_P_ ev_check *w) |
2143 | { |
2779 | { |
2144 | clear_pending (EV_A_ (W)w); |
2780 | clear_pending (EV_A_ (W)w); |
2145 | if (expect_false (!ev_is_active (w))) |
2781 | if (expect_false (!ev_is_active (w))) |
2146 | return; |
2782 | return; |
2147 | |
2783 | |
|
|
2784 | EV_FREQUENT_CHECK; |
|
|
2785 | |
2148 | { |
2786 | { |
2149 | int active = ((W)w)->active; |
2787 | int active = ev_active (w); |
|
|
2788 | |
2150 | checks [active - 1] = checks [--checkcnt]; |
2789 | checks [active - 1] = checks [--checkcnt]; |
2151 | ((W)checks [active - 1])->active = active; |
2790 | ev_active (checks [active - 1]) = active; |
2152 | } |
2791 | } |
2153 | |
2792 | |
2154 | ev_stop (EV_A_ (W)w); |
2793 | ev_stop (EV_A_ (W)w); |
|
|
2794 | |
|
|
2795 | EV_FREQUENT_CHECK; |
2155 | } |
2796 | } |
2156 | |
2797 | |
2157 | #if EV_EMBED_ENABLE |
2798 | #if EV_EMBED_ENABLE |
2158 | void noinline |
2799 | void noinline |
2159 | ev_embed_sweep (EV_P_ ev_embed *w) |
2800 | ev_embed_sweep (EV_P_ ev_embed *w) |
2160 | { |
2801 | { |
2161 | ev_loop (w->loop, EVLOOP_NONBLOCK); |
2802 | ev_loop (w->other, EVLOOP_NONBLOCK); |
2162 | } |
2803 | } |
2163 | |
2804 | |
2164 | static void |
2805 | static void |
2165 | embed_cb (EV_P_ ev_io *io, int revents) |
2806 | embed_io_cb (EV_P_ ev_io *io, int revents) |
2166 | { |
2807 | { |
2167 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
2808 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
2168 | |
2809 | |
2169 | if (ev_cb (w)) |
2810 | if (ev_cb (w)) |
2170 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2811 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2171 | else |
2812 | else |
2172 | ev_embed_sweep (loop, w); |
2813 | ev_loop (w->other, EVLOOP_NONBLOCK); |
2173 | } |
2814 | } |
|
|
2815 | |
|
|
2816 | static void |
|
|
2817 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
|
|
2818 | { |
|
|
2819 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
|
|
2820 | |
|
|
2821 | { |
|
|
2822 | struct ev_loop *loop = w->other; |
|
|
2823 | |
|
|
2824 | while (fdchangecnt) |
|
|
2825 | { |
|
|
2826 | fd_reify (EV_A); |
|
|
2827 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
2828 | } |
|
|
2829 | } |
|
|
2830 | } |
|
|
2831 | |
|
|
2832 | #if 0 |
|
|
2833 | static void |
|
|
2834 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
|
|
2835 | { |
|
|
2836 | ev_idle_stop (EV_A_ idle); |
|
|
2837 | } |
|
|
2838 | #endif |
2174 | |
2839 | |
2175 | void |
2840 | void |
2176 | ev_embed_start (EV_P_ ev_embed *w) |
2841 | ev_embed_start (EV_P_ ev_embed *w) |
2177 | { |
2842 | { |
2178 | if (expect_false (ev_is_active (w))) |
2843 | if (expect_false (ev_is_active (w))) |
2179 | return; |
2844 | return; |
2180 | |
2845 | |
2181 | { |
2846 | { |
2182 | struct ev_loop *loop = w->loop; |
2847 | struct ev_loop *loop = w->other; |
2183 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2848 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2184 | ev_io_init (&w->io, embed_cb, backend_fd, EV_READ); |
2849 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2185 | } |
2850 | } |
|
|
2851 | |
|
|
2852 | EV_FREQUENT_CHECK; |
2186 | |
2853 | |
2187 | ev_set_priority (&w->io, ev_priority (w)); |
2854 | ev_set_priority (&w->io, ev_priority (w)); |
2188 | ev_io_start (EV_A_ &w->io); |
2855 | ev_io_start (EV_A_ &w->io); |
2189 | |
2856 | |
|
|
2857 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
|
|
2858 | ev_set_priority (&w->prepare, EV_MINPRI); |
|
|
2859 | ev_prepare_start (EV_A_ &w->prepare); |
|
|
2860 | |
|
|
2861 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
|
|
2862 | |
2190 | ev_start (EV_A_ (W)w, 1); |
2863 | ev_start (EV_A_ (W)w, 1); |
|
|
2864 | |
|
|
2865 | EV_FREQUENT_CHECK; |
2191 | } |
2866 | } |
2192 | |
2867 | |
2193 | void |
2868 | void |
2194 | ev_embed_stop (EV_P_ ev_embed *w) |
2869 | ev_embed_stop (EV_P_ ev_embed *w) |
2195 | { |
2870 | { |
2196 | clear_pending (EV_A_ (W)w); |
2871 | clear_pending (EV_A_ (W)w); |
2197 | if (expect_false (!ev_is_active (w))) |
2872 | if (expect_false (!ev_is_active (w))) |
2198 | return; |
2873 | return; |
2199 | |
2874 | |
|
|
2875 | EV_FREQUENT_CHECK; |
|
|
2876 | |
2200 | ev_io_stop (EV_A_ &w->io); |
2877 | ev_io_stop (EV_A_ &w->io); |
|
|
2878 | ev_prepare_stop (EV_A_ &w->prepare); |
2201 | |
2879 | |
2202 | ev_stop (EV_A_ (W)w); |
2880 | ev_stop (EV_A_ (W)w); |
|
|
2881 | |
|
|
2882 | EV_FREQUENT_CHECK; |
2203 | } |
2883 | } |
2204 | #endif |
2884 | #endif |
2205 | |
2885 | |
2206 | #if EV_FORK_ENABLE |
2886 | #if EV_FORK_ENABLE |
2207 | void |
2887 | void |
2208 | ev_fork_start (EV_P_ ev_fork *w) |
2888 | ev_fork_start (EV_P_ ev_fork *w) |
2209 | { |
2889 | { |
2210 | if (expect_false (ev_is_active (w))) |
2890 | if (expect_false (ev_is_active (w))) |
2211 | return; |
2891 | return; |
|
|
2892 | |
|
|
2893 | EV_FREQUENT_CHECK; |
2212 | |
2894 | |
2213 | ev_start (EV_A_ (W)w, ++forkcnt); |
2895 | ev_start (EV_A_ (W)w, ++forkcnt); |
2214 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
2896 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
2215 | forks [forkcnt - 1] = w; |
2897 | forks [forkcnt - 1] = w; |
|
|
2898 | |
|
|
2899 | EV_FREQUENT_CHECK; |
2216 | } |
2900 | } |
2217 | |
2901 | |
2218 | void |
2902 | void |
2219 | ev_fork_stop (EV_P_ ev_fork *w) |
2903 | ev_fork_stop (EV_P_ ev_fork *w) |
2220 | { |
2904 | { |
2221 | clear_pending (EV_A_ (W)w); |
2905 | clear_pending (EV_A_ (W)w); |
2222 | if (expect_false (!ev_is_active (w))) |
2906 | if (expect_false (!ev_is_active (w))) |
2223 | return; |
2907 | return; |
2224 | |
2908 | |
|
|
2909 | EV_FREQUENT_CHECK; |
|
|
2910 | |
2225 | { |
2911 | { |
2226 | int active = ((W)w)->active; |
2912 | int active = ev_active (w); |
|
|
2913 | |
2227 | forks [active - 1] = forks [--forkcnt]; |
2914 | forks [active - 1] = forks [--forkcnt]; |
2228 | ((W)forks [active - 1])->active = active; |
2915 | ev_active (forks [active - 1]) = active; |
2229 | } |
2916 | } |
2230 | |
2917 | |
2231 | ev_stop (EV_A_ (W)w); |
2918 | ev_stop (EV_A_ (W)w); |
|
|
2919 | |
|
|
2920 | EV_FREQUENT_CHECK; |
|
|
2921 | } |
|
|
2922 | #endif |
|
|
2923 | |
|
|
2924 | #if EV_ASYNC_ENABLE |
|
|
2925 | void |
|
|
2926 | ev_async_start (EV_P_ ev_async *w) |
|
|
2927 | { |
|
|
2928 | if (expect_false (ev_is_active (w))) |
|
|
2929 | return; |
|
|
2930 | |
|
|
2931 | evpipe_init (EV_A); |
|
|
2932 | |
|
|
2933 | EV_FREQUENT_CHECK; |
|
|
2934 | |
|
|
2935 | ev_start (EV_A_ (W)w, ++asynccnt); |
|
|
2936 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
|
|
2937 | asyncs [asynccnt - 1] = w; |
|
|
2938 | |
|
|
2939 | EV_FREQUENT_CHECK; |
|
|
2940 | } |
|
|
2941 | |
|
|
2942 | void |
|
|
2943 | ev_async_stop (EV_P_ ev_async *w) |
|
|
2944 | { |
|
|
2945 | clear_pending (EV_A_ (W)w); |
|
|
2946 | if (expect_false (!ev_is_active (w))) |
|
|
2947 | return; |
|
|
2948 | |
|
|
2949 | EV_FREQUENT_CHECK; |
|
|
2950 | |
|
|
2951 | { |
|
|
2952 | int active = ev_active (w); |
|
|
2953 | |
|
|
2954 | asyncs [active - 1] = asyncs [--asynccnt]; |
|
|
2955 | ev_active (asyncs [active - 1]) = active; |
|
|
2956 | } |
|
|
2957 | |
|
|
2958 | ev_stop (EV_A_ (W)w); |
|
|
2959 | |
|
|
2960 | EV_FREQUENT_CHECK; |
|
|
2961 | } |
|
|
2962 | |
|
|
2963 | void |
|
|
2964 | ev_async_send (EV_P_ ev_async *w) |
|
|
2965 | { |
|
|
2966 | w->sent = 1; |
|
|
2967 | evpipe_write (EV_A_ &gotasync); |
2232 | } |
2968 | } |
2233 | #endif |
2969 | #endif |
2234 | |
2970 | |
2235 | /*****************************************************************************/ |
2971 | /*****************************************************************************/ |
2236 | |
2972 | |
… | |
… | |
2294 | ev_timer_set (&once->to, timeout, 0.); |
3030 | ev_timer_set (&once->to, timeout, 0.); |
2295 | ev_timer_start (EV_A_ &once->to); |
3031 | ev_timer_start (EV_A_ &once->to); |
2296 | } |
3032 | } |
2297 | } |
3033 | } |
2298 | |
3034 | |
|
|
3035 | #if EV_MULTIPLICITY |
|
|
3036 | #include "ev_wrap.h" |
|
|
3037 | #endif |
|
|
3038 | |
2299 | #ifdef __cplusplus |
3039 | #ifdef __cplusplus |
2300 | } |
3040 | } |
2301 | #endif |
3041 | #endif |
2302 | |
3042 | |