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) 2007,2008,2009 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" |
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50 | # endif |
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51 | |
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52 | # if HAVE_CLOCK_SYSCALL |
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53 | # ifndef EV_USE_CLOCK_SYSCALL |
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54 | # define EV_USE_CLOCK_SYSCALL 1 |
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55 | # ifndef EV_USE_REALTIME |
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56 | # define EV_USE_REALTIME 0 |
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57 | # endif |
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58 | # ifndef EV_USE_MONOTONIC |
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59 | # define EV_USE_MONOTONIC 1 |
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60 | # endif |
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61 | # endif |
41 | # endif |
62 | # endif |
42 | |
63 | |
43 | # if HAVE_CLOCK_GETTIME |
64 | # if HAVE_CLOCK_GETTIME |
44 | # ifndef EV_USE_MONOTONIC |
65 | # ifndef EV_USE_MONOTONIC |
45 | # define EV_USE_MONOTONIC 1 |
66 | # define EV_USE_MONOTONIC 1 |
… | |
… | |
51 | # ifndef EV_USE_MONOTONIC |
72 | # ifndef EV_USE_MONOTONIC |
52 | # define EV_USE_MONOTONIC 0 |
73 | # define EV_USE_MONOTONIC 0 |
53 | # endif |
74 | # endif |
54 | # ifndef EV_USE_REALTIME |
75 | # ifndef EV_USE_REALTIME |
55 | # define EV_USE_REALTIME 0 |
76 | # define EV_USE_REALTIME 0 |
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77 | # endif |
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78 | # endif |
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79 | |
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80 | # ifndef EV_USE_NANOSLEEP |
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81 | # if HAVE_NANOSLEEP |
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82 | # define EV_USE_NANOSLEEP 1 |
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83 | # else |
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84 | # define EV_USE_NANOSLEEP 0 |
56 | # endif |
85 | # endif |
57 | # endif |
86 | # endif |
58 | |
87 | |
59 | # ifndef EV_USE_SELECT |
88 | # ifndef EV_USE_SELECT |
60 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
89 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
… | |
… | |
102 | # else |
131 | # else |
103 | # define EV_USE_INOTIFY 0 |
132 | # define EV_USE_INOTIFY 0 |
104 | # endif |
133 | # endif |
105 | # endif |
134 | # endif |
106 | |
135 | |
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136 | # ifndef EV_USE_EVENTFD |
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137 | # if HAVE_EVENTFD |
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138 | # define EV_USE_EVENTFD 1 |
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139 | # else |
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140 | # define EV_USE_EVENTFD 0 |
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141 | # endif |
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142 | # endif |
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143 | |
107 | #endif |
144 | #endif |
108 | |
145 | |
109 | #include <math.h> |
146 | #include <math.h> |
110 | #include <stdlib.h> |
147 | #include <stdlib.h> |
111 | #include <fcntl.h> |
148 | #include <fcntl.h> |
… | |
… | |
129 | #ifndef _WIN32 |
166 | #ifndef _WIN32 |
130 | # include <sys/time.h> |
167 | # include <sys/time.h> |
131 | # include <sys/wait.h> |
168 | # include <sys/wait.h> |
132 | # include <unistd.h> |
169 | # include <unistd.h> |
133 | #else |
170 | #else |
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171 | # include <io.h> |
134 | # define WIN32_LEAN_AND_MEAN |
172 | # define WIN32_LEAN_AND_MEAN |
135 | # include <windows.h> |
173 | # include <windows.h> |
136 | # ifndef EV_SELECT_IS_WINSOCKET |
174 | # ifndef EV_SELECT_IS_WINSOCKET |
137 | # define EV_SELECT_IS_WINSOCKET 1 |
175 | # define EV_SELECT_IS_WINSOCKET 1 |
138 | # endif |
176 | # endif |
139 | #endif |
177 | #endif |
140 | |
178 | |
141 | /**/ |
179 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
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180 | |
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181 | #ifndef EV_USE_CLOCK_SYSCALL |
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182 | # if __linux && __GLIBC__ >= 2 |
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183 | # define EV_USE_CLOCK_SYSCALL 1 |
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184 | # else |
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185 | # define EV_USE_CLOCK_SYSCALL 0 |
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186 | # endif |
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187 | #endif |
142 | |
188 | |
143 | #ifndef EV_USE_MONOTONIC |
189 | #ifndef EV_USE_MONOTONIC |
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190 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
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191 | # define EV_USE_MONOTONIC 1 |
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192 | # else |
144 | # define EV_USE_MONOTONIC 0 |
193 | # define EV_USE_MONOTONIC 0 |
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194 | # endif |
145 | #endif |
195 | #endif |
146 | |
196 | |
147 | #ifndef EV_USE_REALTIME |
197 | #ifndef EV_USE_REALTIME |
148 | # define EV_USE_REALTIME 0 |
198 | # define EV_USE_REALTIME 0 |
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199 | #endif |
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200 | |
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201 | #ifndef EV_USE_NANOSLEEP |
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202 | # if _POSIX_C_SOURCE >= 199309L |
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203 | # define EV_USE_NANOSLEEP 1 |
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204 | # else |
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205 | # define EV_USE_NANOSLEEP 0 |
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206 | # endif |
149 | #endif |
207 | #endif |
150 | |
208 | |
151 | #ifndef EV_USE_SELECT |
209 | #ifndef EV_USE_SELECT |
152 | # define EV_USE_SELECT 1 |
210 | # define EV_USE_SELECT 1 |
153 | #endif |
211 | #endif |
… | |
… | |
159 | # define EV_USE_POLL 1 |
217 | # define EV_USE_POLL 1 |
160 | # endif |
218 | # endif |
161 | #endif |
219 | #endif |
162 | |
220 | |
163 | #ifndef EV_USE_EPOLL |
221 | #ifndef EV_USE_EPOLL |
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222 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
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223 | # define EV_USE_EPOLL 1 |
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224 | # else |
164 | # define EV_USE_EPOLL 0 |
225 | # define EV_USE_EPOLL 0 |
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226 | # endif |
165 | #endif |
227 | #endif |
166 | |
228 | |
167 | #ifndef EV_USE_KQUEUE |
229 | #ifndef EV_USE_KQUEUE |
168 | # define EV_USE_KQUEUE 0 |
230 | # define EV_USE_KQUEUE 0 |
169 | #endif |
231 | #endif |
… | |
… | |
171 | #ifndef EV_USE_PORT |
233 | #ifndef EV_USE_PORT |
172 | # define EV_USE_PORT 0 |
234 | # define EV_USE_PORT 0 |
173 | #endif |
235 | #endif |
174 | |
236 | |
175 | #ifndef EV_USE_INOTIFY |
237 | #ifndef EV_USE_INOTIFY |
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238 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
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239 | # define EV_USE_INOTIFY 1 |
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240 | # else |
176 | # define EV_USE_INOTIFY 0 |
241 | # define EV_USE_INOTIFY 0 |
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242 | # endif |
177 | #endif |
243 | #endif |
178 | |
244 | |
179 | #ifndef EV_PID_HASHSIZE |
245 | #ifndef EV_PID_HASHSIZE |
180 | # if EV_MINIMAL |
246 | # if EV_MINIMAL |
181 | # define EV_PID_HASHSIZE 1 |
247 | # define EV_PID_HASHSIZE 1 |
… | |
… | |
190 | # else |
256 | # else |
191 | # define EV_INOTIFY_HASHSIZE 16 |
257 | # define EV_INOTIFY_HASHSIZE 16 |
192 | # endif |
258 | # endif |
193 | #endif |
259 | #endif |
194 | |
260 | |
195 | /**/ |
261 | #ifndef EV_USE_EVENTFD |
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262 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
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263 | # define EV_USE_EVENTFD 1 |
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264 | # else |
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265 | # define EV_USE_EVENTFD 0 |
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266 | # endif |
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267 | #endif |
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268 | |
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269 | #if 0 /* debugging */ |
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270 | # define EV_VERIFY 3 |
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271 | # define EV_USE_4HEAP 1 |
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272 | # define EV_HEAP_CACHE_AT 1 |
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273 | #endif |
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274 | |
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275 | #ifndef EV_VERIFY |
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276 | # define EV_VERIFY !EV_MINIMAL |
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277 | #endif |
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278 | |
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279 | #ifndef EV_USE_4HEAP |
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280 | # define EV_USE_4HEAP !EV_MINIMAL |
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281 | #endif |
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282 | |
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283 | #ifndef EV_HEAP_CACHE_AT |
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284 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
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285 | #endif |
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286 | |
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287 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
196 | |
288 | |
197 | #ifndef CLOCK_MONOTONIC |
289 | #ifndef CLOCK_MONOTONIC |
198 | # undef EV_USE_MONOTONIC |
290 | # undef EV_USE_MONOTONIC |
199 | # define EV_USE_MONOTONIC 0 |
291 | # define EV_USE_MONOTONIC 0 |
200 | #endif |
292 | #endif |
… | |
… | |
202 | #ifndef CLOCK_REALTIME |
294 | #ifndef CLOCK_REALTIME |
203 | # undef EV_USE_REALTIME |
295 | # undef EV_USE_REALTIME |
204 | # define EV_USE_REALTIME 0 |
296 | # define EV_USE_REALTIME 0 |
205 | #endif |
297 | #endif |
206 | |
298 | |
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299 | #if !EV_STAT_ENABLE |
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300 | # undef EV_USE_INOTIFY |
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301 | # define EV_USE_INOTIFY 0 |
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302 | #endif |
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303 | |
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304 | #if !EV_USE_NANOSLEEP |
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305 | # ifndef _WIN32 |
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306 | # include <sys/select.h> |
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307 | # endif |
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308 | #endif |
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309 | |
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310 | #if EV_USE_INOTIFY |
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311 | # include <sys/utsname.h> |
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312 | # include <sys/statfs.h> |
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313 | # include <sys/inotify.h> |
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314 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
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315 | # ifndef IN_DONT_FOLLOW |
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316 | # undef EV_USE_INOTIFY |
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317 | # define EV_USE_INOTIFY 0 |
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318 | # endif |
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319 | #endif |
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320 | |
207 | #if EV_SELECT_IS_WINSOCKET |
321 | #if EV_SELECT_IS_WINSOCKET |
208 | # include <winsock.h> |
322 | # include <winsock.h> |
209 | #endif |
323 | #endif |
210 | |
324 | |
211 | #if !EV_STAT_ENABLE |
325 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
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326 | /* which makes programs even slower. might work on other unices, too. */ |
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327 | #if EV_USE_CLOCK_SYSCALL |
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328 | # include <syscall.h> |
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329 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
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330 | # undef EV_USE_MONOTONIC |
212 | # define EV_USE_INOTIFY 0 |
331 | # define EV_USE_MONOTONIC 1 |
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332 | #endif |
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333 | |
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334 | #if EV_USE_EVENTFD |
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335 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
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336 | # include <stdint.h> |
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337 | # ifdef __cplusplus |
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338 | extern "C" { |
213 | #endif |
339 | # endif |
214 | |
340 | int eventfd (unsigned int initval, int flags); |
215 | #if EV_USE_INOTIFY |
341 | # ifdef __cplusplus |
216 | # include <sys/inotify.h> |
342 | } |
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343 | # endif |
217 | #endif |
344 | #endif |
218 | |
345 | |
219 | /**/ |
346 | /**/ |
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347 | |
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348 | #if EV_VERIFY >= 3 |
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349 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
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350 | #else |
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351 | # define EV_FREQUENT_CHECK do { } while (0) |
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352 | #endif |
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353 | |
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354 | /* |
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355 | * This is used to avoid floating point rounding problems. |
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356 | * It is added to ev_rt_now when scheduling periodics |
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357 | * to ensure progress, time-wise, even when rounding |
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358 | * errors are against us. |
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359 | * This value is good at least till the year 4000. |
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360 | * Better solutions welcome. |
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361 | */ |
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362 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
220 | |
363 | |
221 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
364 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
222 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
365 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
223 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds */ |
366 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
224 | |
367 | |
225 | #if __GNUC__ >= 3 |
368 | #if __GNUC__ >= 4 |
226 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
369 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
227 | # define noinline __attribute__ ((noinline)) |
370 | # define noinline __attribute__ ((noinline)) |
228 | #else |
371 | #else |
229 | # define expect(expr,value) (expr) |
372 | # define expect(expr,value) (expr) |
230 | # define noinline |
373 | # define noinline |
231 | # if __STDC_VERSION__ < 199901L |
374 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
232 | # define inline |
375 | # define inline |
233 | # endif |
376 | # endif |
234 | #endif |
377 | #endif |
235 | |
378 | |
236 | #define expect_false(expr) expect ((expr) != 0, 0) |
379 | #define expect_false(expr) expect ((expr) != 0, 0) |
… | |
… | |
251 | |
394 | |
252 | typedef ev_watcher *W; |
395 | typedef ev_watcher *W; |
253 | typedef ev_watcher_list *WL; |
396 | typedef ev_watcher_list *WL; |
254 | typedef ev_watcher_time *WT; |
397 | typedef ev_watcher_time *WT; |
255 | |
398 | |
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399 | #define ev_active(w) ((W)(w))->active |
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400 | #define ev_at(w) ((WT)(w))->at |
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401 | |
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402 | #if EV_USE_MONOTONIC |
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403 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
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404 | /* giving it a reasonably high chance of working on typical architetcures */ |
256 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
405 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
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406 | #endif |
257 | |
407 | |
258 | #ifdef _WIN32 |
408 | #ifdef _WIN32 |
259 | # include "ev_win32.c" |
409 | # include "ev_win32.c" |
260 | #endif |
410 | #endif |
261 | |
411 | |
… | |
… | |
268 | { |
418 | { |
269 | syserr_cb = cb; |
419 | syserr_cb = cb; |
270 | } |
420 | } |
271 | |
421 | |
272 | static void noinline |
422 | static void noinline |
273 | syserr (const char *msg) |
423 | ev_syserr (const char *msg) |
274 | { |
424 | { |
275 | if (!msg) |
425 | if (!msg) |
276 | msg = "(libev) system error"; |
426 | msg = "(libev) system error"; |
277 | |
427 | |
278 | if (syserr_cb) |
428 | if (syserr_cb) |
… | |
… | |
282 | perror (msg); |
432 | perror (msg); |
283 | abort (); |
433 | abort (); |
284 | } |
434 | } |
285 | } |
435 | } |
286 | |
436 | |
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437 | static void * |
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438 | ev_realloc_emul (void *ptr, long size) |
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439 | { |
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440 | /* some systems, notably openbsd and darwin, fail to properly |
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441 | * implement realloc (x, 0) (as required by both ansi c-98 and |
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442 | * the single unix specification, so work around them here. |
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443 | */ |
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444 | |
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445 | if (size) |
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446 | return realloc (ptr, size); |
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447 | |
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448 | free (ptr); |
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449 | return 0; |
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450 | } |
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451 | |
287 | static void *(*alloc)(void *ptr, long size); |
452 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
288 | |
453 | |
289 | void |
454 | void |
290 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
455 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
291 | { |
456 | { |
292 | alloc = cb; |
457 | alloc = cb; |
293 | } |
458 | } |
294 | |
459 | |
295 | inline_speed void * |
460 | inline_speed void * |
296 | ev_realloc (void *ptr, long size) |
461 | ev_realloc (void *ptr, long size) |
297 | { |
462 | { |
298 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
463 | ptr = alloc (ptr, size); |
299 | |
464 | |
300 | if (!ptr && size) |
465 | if (!ptr && size) |
301 | { |
466 | { |
302 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
467 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
303 | abort (); |
468 | abort (); |
… | |
… | |
314 | typedef struct |
479 | typedef struct |
315 | { |
480 | { |
316 | WL head; |
481 | WL head; |
317 | unsigned char events; |
482 | unsigned char events; |
318 | unsigned char reify; |
483 | unsigned char reify; |
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484 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
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485 | unsigned char unused; |
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486 | #if EV_USE_EPOLL |
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487 | unsigned int egen; /* generation counter to counter epoll bugs */ |
|
|
488 | #endif |
319 | #if EV_SELECT_IS_WINSOCKET |
489 | #if EV_SELECT_IS_WINSOCKET |
320 | SOCKET handle; |
490 | SOCKET handle; |
321 | #endif |
491 | #endif |
322 | } ANFD; |
492 | } ANFD; |
323 | |
493 | |
… | |
… | |
326 | W w; |
496 | W w; |
327 | int events; |
497 | int events; |
328 | } ANPENDING; |
498 | } ANPENDING; |
329 | |
499 | |
330 | #if EV_USE_INOTIFY |
500 | #if EV_USE_INOTIFY |
|
|
501 | /* hash table entry per inotify-id */ |
331 | typedef struct |
502 | typedef struct |
332 | { |
503 | { |
333 | WL head; |
504 | WL head; |
334 | } ANFS; |
505 | } ANFS; |
|
|
506 | #endif |
|
|
507 | |
|
|
508 | /* Heap Entry */ |
|
|
509 | #if EV_HEAP_CACHE_AT |
|
|
510 | typedef struct { |
|
|
511 | ev_tstamp at; |
|
|
512 | WT w; |
|
|
513 | } ANHE; |
|
|
514 | |
|
|
515 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
|
|
516 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
|
|
517 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
|
|
518 | #else |
|
|
519 | typedef WT ANHE; |
|
|
520 | |
|
|
521 | #define ANHE_w(he) (he) |
|
|
522 | #define ANHE_at(he) (he)->at |
|
|
523 | #define ANHE_at_cache(he) |
335 | #endif |
524 | #endif |
336 | |
525 | |
337 | #if EV_MULTIPLICITY |
526 | #if EV_MULTIPLICITY |
338 | |
527 | |
339 | struct ev_loop |
528 | struct ev_loop |
… | |
… | |
397 | { |
586 | { |
398 | return ev_rt_now; |
587 | return ev_rt_now; |
399 | } |
588 | } |
400 | #endif |
589 | #endif |
401 | |
590 | |
|
|
591 | void |
|
|
592 | ev_sleep (ev_tstamp delay) |
|
|
593 | { |
|
|
594 | if (delay > 0.) |
|
|
595 | { |
|
|
596 | #if EV_USE_NANOSLEEP |
|
|
597 | struct timespec ts; |
|
|
598 | |
|
|
599 | ts.tv_sec = (time_t)delay; |
|
|
600 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
601 | |
|
|
602 | nanosleep (&ts, 0); |
|
|
603 | #elif defined(_WIN32) |
|
|
604 | Sleep ((unsigned long)(delay * 1e3)); |
|
|
605 | #else |
|
|
606 | struct timeval tv; |
|
|
607 | |
|
|
608 | tv.tv_sec = (time_t)delay; |
|
|
609 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
|
|
610 | |
|
|
611 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
|
|
612 | /* somehting nto guaranteed by newer posix versions, but guaranteed */ |
|
|
613 | /* by older ones */ |
|
|
614 | select (0, 0, 0, 0, &tv); |
|
|
615 | #endif |
|
|
616 | } |
|
|
617 | } |
|
|
618 | |
|
|
619 | /*****************************************************************************/ |
|
|
620 | |
|
|
621 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
|
|
622 | |
402 | int inline_size |
623 | int inline_size |
403 | array_nextsize (int elem, int cur, int cnt) |
624 | array_nextsize (int elem, int cur, int cnt) |
404 | { |
625 | { |
405 | int ncur = cur + 1; |
626 | int ncur = cur + 1; |
406 | |
627 | |
407 | do |
628 | do |
408 | ncur <<= 1; |
629 | ncur <<= 1; |
409 | while (cnt > ncur); |
630 | while (cnt > ncur); |
410 | |
631 | |
411 | /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */ |
632 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
412 | if (elem * ncur > 4096) |
633 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
413 | { |
634 | { |
414 | ncur *= elem; |
635 | ncur *= elem; |
415 | ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095; |
636 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
416 | ncur = ncur - sizeof (void *) * 4; |
637 | ncur = ncur - sizeof (void *) * 4; |
417 | ncur /= elem; |
638 | ncur /= elem; |
418 | } |
639 | } |
419 | |
640 | |
420 | return ncur; |
641 | return ncur; |
… | |
… | |
424 | array_realloc (int elem, void *base, int *cur, int cnt) |
645 | array_realloc (int elem, void *base, int *cur, int cnt) |
425 | { |
646 | { |
426 | *cur = array_nextsize (elem, *cur, cnt); |
647 | *cur = array_nextsize (elem, *cur, cnt); |
427 | return ev_realloc (base, elem * *cur); |
648 | return ev_realloc (base, elem * *cur); |
428 | } |
649 | } |
|
|
650 | |
|
|
651 | #define array_init_zero(base,count) \ |
|
|
652 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
429 | |
653 | |
430 | #define array_needsize(type,base,cur,cnt,init) \ |
654 | #define array_needsize(type,base,cur,cnt,init) \ |
431 | if (expect_false ((cnt) > (cur))) \ |
655 | if (expect_false ((cnt) > (cur))) \ |
432 | { \ |
656 | { \ |
433 | int ocur_ = (cur); \ |
657 | int ocur_ = (cur); \ |
… | |
… | |
466 | pendings [pri][w_->pending - 1].w = w_; |
690 | pendings [pri][w_->pending - 1].w = w_; |
467 | pendings [pri][w_->pending - 1].events = revents; |
691 | pendings [pri][w_->pending - 1].events = revents; |
468 | } |
692 | } |
469 | } |
693 | } |
470 | |
694 | |
471 | void inline_size |
695 | void inline_speed |
472 | queue_events (EV_P_ W *events, int eventcnt, int type) |
696 | queue_events (EV_P_ W *events, int eventcnt, int type) |
473 | { |
697 | { |
474 | int i; |
698 | int i; |
475 | |
699 | |
476 | for (i = 0; i < eventcnt; ++i) |
700 | for (i = 0; i < eventcnt; ++i) |
477 | ev_feed_event (EV_A_ events [i], type); |
701 | ev_feed_event (EV_A_ events [i], type); |
478 | } |
702 | } |
479 | |
703 | |
480 | /*****************************************************************************/ |
704 | /*****************************************************************************/ |
481 | |
|
|
482 | void inline_size |
|
|
483 | anfds_init (ANFD *base, int count) |
|
|
484 | { |
|
|
485 | while (count--) |
|
|
486 | { |
|
|
487 | base->head = 0; |
|
|
488 | base->events = EV_NONE; |
|
|
489 | base->reify = 0; |
|
|
490 | |
|
|
491 | ++base; |
|
|
492 | } |
|
|
493 | } |
|
|
494 | |
705 | |
495 | void inline_speed |
706 | void inline_speed |
496 | fd_event (EV_P_ int fd, int revents) |
707 | fd_event (EV_P_ int fd, int revents) |
497 | { |
708 | { |
498 | ANFD *anfd = anfds + fd; |
709 | ANFD *anfd = anfds + fd; |
… | |
… | |
523 | { |
734 | { |
524 | int fd = fdchanges [i]; |
735 | int fd = fdchanges [i]; |
525 | ANFD *anfd = anfds + fd; |
736 | ANFD *anfd = anfds + fd; |
526 | ev_io *w; |
737 | ev_io *w; |
527 | |
738 | |
528 | int events = 0; |
739 | unsigned char events = 0; |
529 | |
740 | |
530 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
741 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
531 | events |= w->events; |
742 | events |= (unsigned char)w->events; |
532 | |
743 | |
533 | #if EV_SELECT_IS_WINSOCKET |
744 | #if EV_SELECT_IS_WINSOCKET |
534 | if (events) |
745 | if (events) |
535 | { |
746 | { |
536 | unsigned long argp; |
747 | unsigned long arg; |
|
|
748 | #ifdef EV_FD_TO_WIN32_HANDLE |
|
|
749 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
750 | #else |
537 | anfd->handle = _get_osfhandle (fd); |
751 | anfd->handle = _get_osfhandle (fd); |
|
|
752 | #endif |
538 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
753 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
539 | } |
754 | } |
540 | #endif |
755 | #endif |
541 | |
756 | |
|
|
757 | { |
|
|
758 | unsigned char o_events = anfd->events; |
|
|
759 | unsigned char o_reify = anfd->reify; |
|
|
760 | |
542 | anfd->reify = 0; |
761 | anfd->reify = 0; |
543 | |
|
|
544 | backend_modify (EV_A_ fd, anfd->events, events); |
|
|
545 | anfd->events = events; |
762 | anfd->events = events; |
|
|
763 | |
|
|
764 | if (o_events != events || o_reify & EV_IOFDSET) |
|
|
765 | backend_modify (EV_A_ fd, o_events, events); |
|
|
766 | } |
546 | } |
767 | } |
547 | |
768 | |
548 | fdchangecnt = 0; |
769 | fdchangecnt = 0; |
549 | } |
770 | } |
550 | |
771 | |
551 | void inline_size |
772 | void inline_size |
552 | fd_change (EV_P_ int fd) |
773 | fd_change (EV_P_ int fd, int flags) |
553 | { |
774 | { |
554 | if (expect_false (anfds [fd].reify)) |
775 | unsigned char reify = anfds [fd].reify; |
555 | return; |
|
|
556 | |
|
|
557 | anfds [fd].reify = 1; |
776 | anfds [fd].reify |= flags; |
558 | |
777 | |
|
|
778 | if (expect_true (!reify)) |
|
|
779 | { |
559 | ++fdchangecnt; |
780 | ++fdchangecnt; |
560 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
781 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
561 | fdchanges [fdchangecnt - 1] = fd; |
782 | fdchanges [fdchangecnt - 1] = fd; |
|
|
783 | } |
562 | } |
784 | } |
563 | |
785 | |
564 | void inline_speed |
786 | void inline_speed |
565 | fd_kill (EV_P_ int fd) |
787 | fd_kill (EV_P_ int fd) |
566 | { |
788 | { |
… | |
… | |
589 | { |
811 | { |
590 | int fd; |
812 | int fd; |
591 | |
813 | |
592 | for (fd = 0; fd < anfdmax; ++fd) |
814 | for (fd = 0; fd < anfdmax; ++fd) |
593 | if (anfds [fd].events) |
815 | if (anfds [fd].events) |
594 | if (!fd_valid (fd) == -1 && errno == EBADF) |
816 | if (!fd_valid (fd) && errno == EBADF) |
595 | fd_kill (EV_A_ fd); |
817 | fd_kill (EV_A_ fd); |
596 | } |
818 | } |
597 | |
819 | |
598 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
820 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
599 | static void noinline |
821 | static void noinline |
… | |
… | |
617 | |
839 | |
618 | for (fd = 0; fd < anfdmax; ++fd) |
840 | for (fd = 0; fd < anfdmax; ++fd) |
619 | if (anfds [fd].events) |
841 | if (anfds [fd].events) |
620 | { |
842 | { |
621 | anfds [fd].events = 0; |
843 | anfds [fd].events = 0; |
|
|
844 | anfds [fd].emask = 0; |
622 | fd_change (EV_A_ fd); |
845 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
623 | } |
846 | } |
624 | } |
847 | } |
625 | |
848 | |
626 | /*****************************************************************************/ |
849 | /*****************************************************************************/ |
627 | |
850 | |
|
|
851 | /* |
|
|
852 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
|
|
853 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
|
|
854 | * the branching factor of the d-tree. |
|
|
855 | */ |
|
|
856 | |
|
|
857 | /* |
|
|
858 | * at the moment we allow libev the luxury of two heaps, |
|
|
859 | * a small-code-size 2-heap one and a ~1.5kb larger 4-heap |
|
|
860 | * which is more cache-efficient. |
|
|
861 | * the difference is about 5% with 50000+ watchers. |
|
|
862 | */ |
|
|
863 | #if EV_USE_4HEAP |
|
|
864 | |
|
|
865 | #define DHEAP 4 |
|
|
866 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
|
|
867 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
|
|
868 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
|
|
869 | |
|
|
870 | /* away from the root */ |
628 | void inline_speed |
871 | void inline_speed |
629 | upheap (WT *heap, int k) |
872 | downheap (ANHE *heap, int N, int k) |
630 | { |
873 | { |
631 | WT w = heap [k]; |
874 | ANHE he = heap [k]; |
|
|
875 | ANHE *E = heap + N + HEAP0; |
632 | |
876 | |
633 | while (k && heap [k >> 1]->at > w->at) |
877 | for (;;) |
634 | { |
|
|
635 | heap [k] = heap [k >> 1]; |
|
|
636 | ((W)heap [k])->active = k + 1; |
|
|
637 | k >>= 1; |
|
|
638 | } |
878 | { |
|
|
879 | ev_tstamp minat; |
|
|
880 | ANHE *minpos; |
|
|
881 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
639 | |
882 | |
|
|
883 | /* find minimum child */ |
|
|
884 | if (expect_true (pos + DHEAP - 1 < E)) |
|
|
885 | { |
|
|
886 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
887 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
888 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
889 | if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
890 | } |
|
|
891 | else if (pos < E) |
|
|
892 | { |
|
|
893 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
894 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
895 | if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
896 | if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
897 | } |
|
|
898 | else |
|
|
899 | break; |
|
|
900 | |
|
|
901 | if (ANHE_at (he) <= minat) |
|
|
902 | break; |
|
|
903 | |
|
|
904 | heap [k] = *minpos; |
|
|
905 | ev_active (ANHE_w (*minpos)) = k; |
|
|
906 | |
|
|
907 | k = minpos - heap; |
|
|
908 | } |
|
|
909 | |
640 | heap [k] = w; |
910 | heap [k] = he; |
641 | ((W)heap [k])->active = k + 1; |
911 | ev_active (ANHE_w (he)) = k; |
642 | |
|
|
643 | } |
912 | } |
644 | |
913 | |
|
|
914 | #else /* 4HEAP */ |
|
|
915 | |
|
|
916 | #define HEAP0 1 |
|
|
917 | #define HPARENT(k) ((k) >> 1) |
|
|
918 | #define UPHEAP_DONE(p,k) (!(p)) |
|
|
919 | |
|
|
920 | /* away from the root */ |
645 | void inline_speed |
921 | void inline_speed |
646 | downheap (WT *heap, int N, int k) |
922 | downheap (ANHE *heap, int N, int k) |
647 | { |
923 | { |
648 | WT w = heap [k]; |
924 | ANHE he = heap [k]; |
649 | |
925 | |
650 | while (k < (N >> 1)) |
926 | for (;;) |
651 | { |
927 | { |
652 | int j = k << 1; |
928 | int c = k << 1; |
653 | |
929 | |
654 | if (j + 1 < N && heap [j]->at > heap [j + 1]->at) |
930 | if (c > N + HEAP0 - 1) |
655 | ++j; |
|
|
656 | |
|
|
657 | if (w->at <= heap [j]->at) |
|
|
658 | break; |
931 | break; |
659 | |
932 | |
|
|
933 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
|
|
934 | ? 1 : 0; |
|
|
935 | |
|
|
936 | if (ANHE_at (he) <= ANHE_at (heap [c])) |
|
|
937 | break; |
|
|
938 | |
660 | heap [k] = heap [j]; |
939 | heap [k] = heap [c]; |
661 | ((W)heap [k])->active = k + 1; |
940 | ev_active (ANHE_w (heap [k])) = k; |
|
|
941 | |
662 | k = j; |
942 | k = c; |
663 | } |
943 | } |
664 | |
944 | |
665 | heap [k] = w; |
945 | heap [k] = he; |
666 | ((W)heap [k])->active = k + 1; |
946 | ev_active (ANHE_w (he)) = k; |
|
|
947 | } |
|
|
948 | #endif |
|
|
949 | |
|
|
950 | /* towards the root */ |
|
|
951 | void inline_speed |
|
|
952 | upheap (ANHE *heap, int k) |
|
|
953 | { |
|
|
954 | ANHE he = heap [k]; |
|
|
955 | |
|
|
956 | for (;;) |
|
|
957 | { |
|
|
958 | int p = HPARENT (k); |
|
|
959 | |
|
|
960 | if (UPHEAP_DONE (p, k) || ANHE_at (heap [p]) <= ANHE_at (he)) |
|
|
961 | break; |
|
|
962 | |
|
|
963 | heap [k] = heap [p]; |
|
|
964 | ev_active (ANHE_w (heap [k])) = k; |
|
|
965 | k = p; |
|
|
966 | } |
|
|
967 | |
|
|
968 | heap [k] = he; |
|
|
969 | ev_active (ANHE_w (he)) = k; |
667 | } |
970 | } |
668 | |
971 | |
669 | void inline_size |
972 | void inline_size |
670 | adjustheap (WT *heap, int N, int k) |
973 | adjustheap (ANHE *heap, int N, int k) |
671 | { |
974 | { |
|
|
975 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
672 | upheap (heap, k); |
976 | upheap (heap, k); |
|
|
977 | else |
673 | downheap (heap, N, k); |
978 | downheap (heap, N, k); |
|
|
979 | } |
|
|
980 | |
|
|
981 | /* rebuild the heap: this function is used only once and executed rarely */ |
|
|
982 | void inline_size |
|
|
983 | reheap (ANHE *heap, int N) |
|
|
984 | { |
|
|
985 | int i; |
|
|
986 | |
|
|
987 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
|
|
988 | /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */ |
|
|
989 | for (i = 0; i < N; ++i) |
|
|
990 | upheap (heap, i + HEAP0); |
674 | } |
991 | } |
675 | |
992 | |
676 | /*****************************************************************************/ |
993 | /*****************************************************************************/ |
677 | |
994 | |
678 | typedef struct |
995 | typedef struct |
679 | { |
996 | { |
680 | WL head; |
997 | WL head; |
681 | sig_atomic_t volatile gotsig; |
998 | EV_ATOMIC_T gotsig; |
682 | } ANSIG; |
999 | } ANSIG; |
683 | |
1000 | |
684 | static ANSIG *signals; |
1001 | static ANSIG *signals; |
685 | static int signalmax; |
1002 | static int signalmax; |
686 | |
1003 | |
687 | static int sigpipe [2]; |
1004 | static EV_ATOMIC_T gotsig; |
688 | static sig_atomic_t volatile gotsig; |
|
|
689 | static ev_io sigev; |
|
|
690 | |
1005 | |
691 | void inline_size |
1006 | /*****************************************************************************/ |
692 | signals_init (ANSIG *base, int count) |
|
|
693 | { |
|
|
694 | while (count--) |
|
|
695 | { |
|
|
696 | base->head = 0; |
|
|
697 | base->gotsig = 0; |
|
|
698 | |
|
|
699 | ++base; |
|
|
700 | } |
|
|
701 | } |
|
|
702 | |
|
|
703 | static void |
|
|
704 | sighandler (int signum) |
|
|
705 | { |
|
|
706 | #if _WIN32 |
|
|
707 | signal (signum, sighandler); |
|
|
708 | #endif |
|
|
709 | |
|
|
710 | signals [signum - 1].gotsig = 1; |
|
|
711 | |
|
|
712 | if (!gotsig) |
|
|
713 | { |
|
|
714 | int old_errno = errno; |
|
|
715 | gotsig = 1; |
|
|
716 | write (sigpipe [1], &signum, 1); |
|
|
717 | errno = old_errno; |
|
|
718 | } |
|
|
719 | } |
|
|
720 | |
|
|
721 | void noinline |
|
|
722 | ev_feed_signal_event (EV_P_ int signum) |
|
|
723 | { |
|
|
724 | WL w; |
|
|
725 | |
|
|
726 | #if EV_MULTIPLICITY |
|
|
727 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
728 | #endif |
|
|
729 | |
|
|
730 | --signum; |
|
|
731 | |
|
|
732 | if (signum < 0 || signum >= signalmax) |
|
|
733 | return; |
|
|
734 | |
|
|
735 | signals [signum].gotsig = 0; |
|
|
736 | |
|
|
737 | for (w = signals [signum].head; w; w = w->next) |
|
|
738 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
739 | } |
|
|
740 | |
|
|
741 | static void |
|
|
742 | sigcb (EV_P_ ev_io *iow, int revents) |
|
|
743 | { |
|
|
744 | int signum; |
|
|
745 | |
|
|
746 | read (sigpipe [0], &revents, 1); |
|
|
747 | gotsig = 0; |
|
|
748 | |
|
|
749 | for (signum = signalmax; signum--; ) |
|
|
750 | if (signals [signum].gotsig) |
|
|
751 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
752 | } |
|
|
753 | |
1007 | |
754 | void inline_speed |
1008 | void inline_speed |
755 | fd_intern (int fd) |
1009 | fd_intern (int fd) |
756 | { |
1010 | { |
757 | #ifdef _WIN32 |
1011 | #ifdef _WIN32 |
758 | int arg = 1; |
1012 | unsigned long arg = 1; |
759 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
1013 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
760 | #else |
1014 | #else |
761 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
1015 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
762 | fcntl (fd, F_SETFL, O_NONBLOCK); |
1016 | fcntl (fd, F_SETFL, O_NONBLOCK); |
763 | #endif |
1017 | #endif |
764 | } |
1018 | } |
765 | |
1019 | |
766 | static void noinline |
1020 | static void noinline |
767 | siginit (EV_P) |
1021 | evpipe_init (EV_P) |
768 | { |
1022 | { |
|
|
1023 | if (!ev_is_active (&pipeev)) |
|
|
1024 | { |
|
|
1025 | #if EV_USE_EVENTFD |
|
|
1026 | if ((evfd = eventfd (0, 0)) >= 0) |
|
|
1027 | { |
|
|
1028 | evpipe [0] = -1; |
|
|
1029 | fd_intern (evfd); |
|
|
1030 | ev_io_set (&pipeev, evfd, EV_READ); |
|
|
1031 | } |
|
|
1032 | else |
|
|
1033 | #endif |
|
|
1034 | { |
|
|
1035 | while (pipe (evpipe)) |
|
|
1036 | ev_syserr ("(libev) error creating signal/async pipe"); |
|
|
1037 | |
769 | fd_intern (sigpipe [0]); |
1038 | fd_intern (evpipe [0]); |
770 | fd_intern (sigpipe [1]); |
1039 | fd_intern (evpipe [1]); |
|
|
1040 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
|
|
1041 | } |
771 | |
1042 | |
772 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
|
|
773 | ev_io_start (EV_A_ &sigev); |
1043 | ev_io_start (EV_A_ &pipeev); |
774 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1044 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
1045 | } |
|
|
1046 | } |
|
|
1047 | |
|
|
1048 | void inline_size |
|
|
1049 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1050 | { |
|
|
1051 | if (!*flag) |
|
|
1052 | { |
|
|
1053 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1054 | |
|
|
1055 | *flag = 1; |
|
|
1056 | |
|
|
1057 | #if EV_USE_EVENTFD |
|
|
1058 | if (evfd >= 0) |
|
|
1059 | { |
|
|
1060 | uint64_t counter = 1; |
|
|
1061 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
1062 | } |
|
|
1063 | else |
|
|
1064 | #endif |
|
|
1065 | write (evpipe [1], &old_errno, 1); |
|
|
1066 | |
|
|
1067 | errno = old_errno; |
|
|
1068 | } |
|
|
1069 | } |
|
|
1070 | |
|
|
1071 | static void |
|
|
1072 | pipecb (EV_P_ ev_io *iow, int revents) |
|
|
1073 | { |
|
|
1074 | #if EV_USE_EVENTFD |
|
|
1075 | if (evfd >= 0) |
|
|
1076 | { |
|
|
1077 | uint64_t counter; |
|
|
1078 | read (evfd, &counter, sizeof (uint64_t)); |
|
|
1079 | } |
|
|
1080 | else |
|
|
1081 | #endif |
|
|
1082 | { |
|
|
1083 | char dummy; |
|
|
1084 | read (evpipe [0], &dummy, 1); |
|
|
1085 | } |
|
|
1086 | |
|
|
1087 | if (gotsig && ev_is_default_loop (EV_A)) |
|
|
1088 | { |
|
|
1089 | int signum; |
|
|
1090 | gotsig = 0; |
|
|
1091 | |
|
|
1092 | for (signum = signalmax; signum--; ) |
|
|
1093 | if (signals [signum].gotsig) |
|
|
1094 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
1095 | } |
|
|
1096 | |
|
|
1097 | #if EV_ASYNC_ENABLE |
|
|
1098 | if (gotasync) |
|
|
1099 | { |
|
|
1100 | int i; |
|
|
1101 | gotasync = 0; |
|
|
1102 | |
|
|
1103 | for (i = asynccnt; i--; ) |
|
|
1104 | if (asyncs [i]->sent) |
|
|
1105 | { |
|
|
1106 | asyncs [i]->sent = 0; |
|
|
1107 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
|
|
1108 | } |
|
|
1109 | } |
|
|
1110 | #endif |
775 | } |
1111 | } |
776 | |
1112 | |
777 | /*****************************************************************************/ |
1113 | /*****************************************************************************/ |
778 | |
1114 | |
|
|
1115 | static void |
|
|
1116 | ev_sighandler (int signum) |
|
|
1117 | { |
|
|
1118 | #if EV_MULTIPLICITY |
|
|
1119 | struct ev_loop *loop = &default_loop_struct; |
|
|
1120 | #endif |
|
|
1121 | |
|
|
1122 | #if _WIN32 |
|
|
1123 | signal (signum, ev_sighandler); |
|
|
1124 | #endif |
|
|
1125 | |
|
|
1126 | signals [signum - 1].gotsig = 1; |
|
|
1127 | evpipe_write (EV_A_ &gotsig); |
|
|
1128 | } |
|
|
1129 | |
|
|
1130 | void noinline |
|
|
1131 | ev_feed_signal_event (EV_P_ int signum) |
|
|
1132 | { |
|
|
1133 | WL w; |
|
|
1134 | |
|
|
1135 | #if EV_MULTIPLICITY |
|
|
1136 | assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1137 | #endif |
|
|
1138 | |
|
|
1139 | --signum; |
|
|
1140 | |
|
|
1141 | if (signum < 0 || signum >= signalmax) |
|
|
1142 | return; |
|
|
1143 | |
|
|
1144 | signals [signum].gotsig = 0; |
|
|
1145 | |
|
|
1146 | for (w = signals [signum].head; w; w = w->next) |
|
|
1147 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
1148 | } |
|
|
1149 | |
|
|
1150 | /*****************************************************************************/ |
|
|
1151 | |
779 | static ev_child *childs [EV_PID_HASHSIZE]; |
1152 | static WL childs [EV_PID_HASHSIZE]; |
780 | |
1153 | |
781 | #ifndef _WIN32 |
1154 | #ifndef _WIN32 |
782 | |
1155 | |
783 | static ev_signal childev; |
1156 | static ev_signal childev; |
784 | |
1157 | |
|
|
1158 | #ifndef WIFCONTINUED |
|
|
1159 | # define WIFCONTINUED(status) 0 |
|
|
1160 | #endif |
|
|
1161 | |
785 | void inline_speed |
1162 | void inline_speed |
786 | child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) |
1163 | child_reap (EV_P_ int chain, int pid, int status) |
787 | { |
1164 | { |
788 | ev_child *w; |
1165 | ev_child *w; |
|
|
1166 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
789 | |
1167 | |
790 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1168 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1169 | { |
791 | if (w->pid == pid || !w->pid) |
1170 | if ((w->pid == pid || !w->pid) |
|
|
1171 | && (!traced || (w->flags & 1))) |
792 | { |
1172 | { |
793 | ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */ |
1173 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
794 | w->rpid = pid; |
1174 | w->rpid = pid; |
795 | w->rstatus = status; |
1175 | w->rstatus = status; |
796 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
1176 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
797 | } |
1177 | } |
|
|
1178 | } |
798 | } |
1179 | } |
799 | |
1180 | |
800 | #ifndef WCONTINUED |
1181 | #ifndef WCONTINUED |
801 | # define WCONTINUED 0 |
1182 | # define WCONTINUED 0 |
802 | #endif |
1183 | #endif |
… | |
… | |
811 | if (!WCONTINUED |
1192 | if (!WCONTINUED |
812 | || errno != EINVAL |
1193 | || errno != EINVAL |
813 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
1194 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
814 | return; |
1195 | return; |
815 | |
1196 | |
816 | /* make sure we are called again until all childs have been reaped */ |
1197 | /* make sure we are called again until all children have been reaped */ |
817 | /* we need to do it this way so that the callback gets called before we continue */ |
1198 | /* we need to do it this way so that the callback gets called before we continue */ |
818 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1199 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
819 | |
1200 | |
820 | child_reap (EV_A_ sw, pid, pid, status); |
1201 | child_reap (EV_A_ pid, pid, status); |
821 | if (EV_PID_HASHSIZE > 1) |
1202 | if (EV_PID_HASHSIZE > 1) |
822 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1203 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
823 | } |
1204 | } |
824 | |
1205 | |
825 | #endif |
1206 | #endif |
826 | |
1207 | |
827 | /*****************************************************************************/ |
1208 | /*****************************************************************************/ |
… | |
… | |
889 | /* kqueue is borked on everything but netbsd apparently */ |
1270 | /* kqueue is borked on everything but netbsd apparently */ |
890 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1271 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
891 | flags &= ~EVBACKEND_KQUEUE; |
1272 | flags &= ~EVBACKEND_KQUEUE; |
892 | #endif |
1273 | #endif |
893 | #ifdef __APPLE__ |
1274 | #ifdef __APPLE__ |
894 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
1275 | /* only select works correctly on that "unix-certified" platform */ |
895 | flags &= ~EVBACKEND_POLL; |
1276 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
|
|
1277 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
896 | #endif |
1278 | #endif |
897 | |
1279 | |
898 | return flags; |
1280 | return flags; |
899 | } |
1281 | } |
900 | |
1282 | |
901 | unsigned int |
1283 | unsigned int |
902 | ev_embeddable_backends (void) |
1284 | ev_embeddable_backends (void) |
903 | { |
1285 | { |
904 | return EVBACKEND_EPOLL |
1286 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
905 | | EVBACKEND_KQUEUE |
1287 | |
906 | | EVBACKEND_PORT; |
1288 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
|
|
1289 | /* please fix it and tell me how to detect the fix */ |
|
|
1290 | flags &= ~EVBACKEND_EPOLL; |
|
|
1291 | |
|
|
1292 | return flags; |
907 | } |
1293 | } |
908 | |
1294 | |
909 | unsigned int |
1295 | unsigned int |
910 | ev_backend (EV_P) |
1296 | ev_backend (EV_P) |
911 | { |
1297 | { |
… | |
… | |
914 | |
1300 | |
915 | unsigned int |
1301 | unsigned int |
916 | ev_loop_count (EV_P) |
1302 | ev_loop_count (EV_P) |
917 | { |
1303 | { |
918 | return loop_count; |
1304 | return loop_count; |
|
|
1305 | } |
|
|
1306 | |
|
|
1307 | void |
|
|
1308 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1309 | { |
|
|
1310 | io_blocktime = interval; |
|
|
1311 | } |
|
|
1312 | |
|
|
1313 | void |
|
|
1314 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1315 | { |
|
|
1316 | timeout_blocktime = interval; |
919 | } |
1317 | } |
920 | |
1318 | |
921 | static void noinline |
1319 | static void noinline |
922 | loop_init (EV_P_ unsigned int flags) |
1320 | loop_init (EV_P_ unsigned int flags) |
923 | { |
1321 | { |
… | |
… | |
929 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1327 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
930 | have_monotonic = 1; |
1328 | have_monotonic = 1; |
931 | } |
1329 | } |
932 | #endif |
1330 | #endif |
933 | |
1331 | |
934 | ev_rt_now = ev_time (); |
1332 | ev_rt_now = ev_time (); |
935 | mn_now = get_clock (); |
1333 | mn_now = get_clock (); |
936 | now_floor = mn_now; |
1334 | now_floor = mn_now; |
937 | rtmn_diff = ev_rt_now - mn_now; |
1335 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1336 | |
|
|
1337 | io_blocktime = 0.; |
|
|
1338 | timeout_blocktime = 0.; |
|
|
1339 | backend = 0; |
|
|
1340 | backend_fd = -1; |
|
|
1341 | gotasync = 0; |
|
|
1342 | #if EV_USE_INOTIFY |
|
|
1343 | fs_fd = -2; |
|
|
1344 | #endif |
938 | |
1345 | |
939 | /* pid check not overridable via env */ |
1346 | /* pid check not overridable via env */ |
940 | #ifndef _WIN32 |
1347 | #ifndef _WIN32 |
941 | if (flags & EVFLAG_FORKCHECK) |
1348 | if (flags & EVFLAG_FORKCHECK) |
942 | curpid = getpid (); |
1349 | curpid = getpid (); |
… | |
… | |
945 | if (!(flags & EVFLAG_NOENV) |
1352 | if (!(flags & EVFLAG_NOENV) |
946 | && !enable_secure () |
1353 | && !enable_secure () |
947 | && getenv ("LIBEV_FLAGS")) |
1354 | && getenv ("LIBEV_FLAGS")) |
948 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1355 | flags = atoi (getenv ("LIBEV_FLAGS")); |
949 | |
1356 | |
950 | if (!(flags & 0x0000ffffUL)) |
1357 | if (!(flags & 0x0000ffffU)) |
951 | flags |= ev_recommended_backends (); |
1358 | flags |= ev_recommended_backends (); |
952 | |
|
|
953 | backend = 0; |
|
|
954 | backend_fd = -1; |
|
|
955 | #if EV_USE_INOTIFY |
|
|
956 | fs_fd = -2; |
|
|
957 | #endif |
|
|
958 | |
1359 | |
959 | #if EV_USE_PORT |
1360 | #if EV_USE_PORT |
960 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1361 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
961 | #endif |
1362 | #endif |
962 | #if EV_USE_KQUEUE |
1363 | #if EV_USE_KQUEUE |
… | |
… | |
970 | #endif |
1371 | #endif |
971 | #if EV_USE_SELECT |
1372 | #if EV_USE_SELECT |
972 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1373 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
973 | #endif |
1374 | #endif |
974 | |
1375 | |
975 | ev_init (&sigev, sigcb); |
1376 | ev_init (&pipeev, pipecb); |
976 | ev_set_priority (&sigev, EV_MAXPRI); |
1377 | ev_set_priority (&pipeev, EV_MAXPRI); |
977 | } |
1378 | } |
978 | } |
1379 | } |
979 | |
1380 | |
980 | static void noinline |
1381 | static void noinline |
981 | loop_destroy (EV_P) |
1382 | loop_destroy (EV_P) |
982 | { |
1383 | { |
983 | int i; |
1384 | int i; |
|
|
1385 | |
|
|
1386 | if (ev_is_active (&pipeev)) |
|
|
1387 | { |
|
|
1388 | ev_ref (EV_A); /* signal watcher */ |
|
|
1389 | ev_io_stop (EV_A_ &pipeev); |
|
|
1390 | |
|
|
1391 | #if EV_USE_EVENTFD |
|
|
1392 | if (evfd >= 0) |
|
|
1393 | close (evfd); |
|
|
1394 | #endif |
|
|
1395 | |
|
|
1396 | if (evpipe [0] >= 0) |
|
|
1397 | { |
|
|
1398 | close (evpipe [0]); |
|
|
1399 | close (evpipe [1]); |
|
|
1400 | } |
|
|
1401 | } |
984 | |
1402 | |
985 | #if EV_USE_INOTIFY |
1403 | #if EV_USE_INOTIFY |
986 | if (fs_fd >= 0) |
1404 | if (fs_fd >= 0) |
987 | close (fs_fd); |
1405 | close (fs_fd); |
988 | #endif |
1406 | #endif |
… | |
… | |
1011 | array_free (pending, [i]); |
1429 | array_free (pending, [i]); |
1012 | #if EV_IDLE_ENABLE |
1430 | #if EV_IDLE_ENABLE |
1013 | array_free (idle, [i]); |
1431 | array_free (idle, [i]); |
1014 | #endif |
1432 | #endif |
1015 | } |
1433 | } |
|
|
1434 | |
|
|
1435 | ev_free (anfds); anfdmax = 0; |
1016 | |
1436 | |
1017 | /* have to use the microsoft-never-gets-it-right macro */ |
1437 | /* have to use the microsoft-never-gets-it-right macro */ |
1018 | array_free (fdchange, EMPTY); |
1438 | array_free (fdchange, EMPTY); |
1019 | array_free (timer, EMPTY); |
1439 | array_free (timer, EMPTY); |
1020 | #if EV_PERIODIC_ENABLE |
1440 | #if EV_PERIODIC_ENABLE |
1021 | array_free (periodic, EMPTY); |
1441 | array_free (periodic, EMPTY); |
1022 | #endif |
1442 | #endif |
|
|
1443 | #if EV_FORK_ENABLE |
|
|
1444 | array_free (fork, EMPTY); |
|
|
1445 | #endif |
1023 | array_free (prepare, EMPTY); |
1446 | array_free (prepare, EMPTY); |
1024 | array_free (check, EMPTY); |
1447 | array_free (check, EMPTY); |
|
|
1448 | #if EV_ASYNC_ENABLE |
|
|
1449 | array_free (async, EMPTY); |
|
|
1450 | #endif |
1025 | |
1451 | |
1026 | backend = 0; |
1452 | backend = 0; |
1027 | } |
1453 | } |
1028 | |
1454 | |
|
|
1455 | #if EV_USE_INOTIFY |
1029 | void inline_size infy_fork (EV_P); |
1456 | void inline_size infy_fork (EV_P); |
|
|
1457 | #endif |
1030 | |
1458 | |
1031 | void inline_size |
1459 | void inline_size |
1032 | loop_fork (EV_P) |
1460 | loop_fork (EV_P) |
1033 | { |
1461 | { |
1034 | #if EV_USE_PORT |
1462 | #if EV_USE_PORT |
… | |
… | |
1042 | #endif |
1470 | #endif |
1043 | #if EV_USE_INOTIFY |
1471 | #if EV_USE_INOTIFY |
1044 | infy_fork (EV_A); |
1472 | infy_fork (EV_A); |
1045 | #endif |
1473 | #endif |
1046 | |
1474 | |
1047 | if (ev_is_active (&sigev)) |
1475 | if (ev_is_active (&pipeev)) |
1048 | { |
1476 | { |
1049 | /* default loop */ |
1477 | /* this "locks" the handlers against writing to the pipe */ |
|
|
1478 | /* while we modify the fd vars */ |
|
|
1479 | gotsig = 1; |
|
|
1480 | #if EV_ASYNC_ENABLE |
|
|
1481 | gotasync = 1; |
|
|
1482 | #endif |
1050 | |
1483 | |
1051 | ev_ref (EV_A); |
1484 | ev_ref (EV_A); |
1052 | ev_io_stop (EV_A_ &sigev); |
1485 | ev_io_stop (EV_A_ &pipeev); |
|
|
1486 | |
|
|
1487 | #if EV_USE_EVENTFD |
|
|
1488 | if (evfd >= 0) |
|
|
1489 | close (evfd); |
|
|
1490 | #endif |
|
|
1491 | |
|
|
1492 | if (evpipe [0] >= 0) |
|
|
1493 | { |
1053 | close (sigpipe [0]); |
1494 | close (evpipe [0]); |
1054 | close (sigpipe [1]); |
1495 | close (evpipe [1]); |
|
|
1496 | } |
1055 | |
1497 | |
1056 | while (pipe (sigpipe)) |
|
|
1057 | syserr ("(libev) error creating pipe"); |
|
|
1058 | |
|
|
1059 | siginit (EV_A); |
1498 | evpipe_init (EV_A); |
|
|
1499 | /* now iterate over everything, in case we missed something */ |
|
|
1500 | pipecb (EV_A_ &pipeev, EV_READ); |
1060 | } |
1501 | } |
1061 | |
1502 | |
1062 | postfork = 0; |
1503 | postfork = 0; |
1063 | } |
1504 | } |
1064 | |
1505 | |
1065 | #if EV_MULTIPLICITY |
1506 | #if EV_MULTIPLICITY |
|
|
1507 | |
1066 | struct ev_loop * |
1508 | struct ev_loop * |
1067 | ev_loop_new (unsigned int flags) |
1509 | ev_loop_new (unsigned int flags) |
1068 | { |
1510 | { |
1069 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1511 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1070 | |
1512 | |
… | |
… | |
1086 | } |
1528 | } |
1087 | |
1529 | |
1088 | void |
1530 | void |
1089 | ev_loop_fork (EV_P) |
1531 | ev_loop_fork (EV_P) |
1090 | { |
1532 | { |
1091 | postfork = 1; |
1533 | postfork = 1; /* must be in line with ev_default_fork */ |
1092 | } |
1534 | } |
1093 | |
1535 | |
|
|
1536 | #if EV_VERIFY |
|
|
1537 | static void noinline |
|
|
1538 | verify_watcher (EV_P_ W w) |
|
|
1539 | { |
|
|
1540 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
|
|
1541 | |
|
|
1542 | if (w->pending) |
|
|
1543 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
|
|
1544 | } |
|
|
1545 | |
|
|
1546 | static void noinline |
|
|
1547 | verify_heap (EV_P_ ANHE *heap, int N) |
|
|
1548 | { |
|
|
1549 | int i; |
|
|
1550 | |
|
|
1551 | for (i = HEAP0; i < N + HEAP0; ++i) |
|
|
1552 | { |
|
|
1553 | assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
|
|
1554 | assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
|
|
1555 | assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
|
|
1556 | |
|
|
1557 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
|
|
1558 | } |
|
|
1559 | } |
|
|
1560 | |
|
|
1561 | static void noinline |
|
|
1562 | array_verify (EV_P_ W *ws, int cnt) |
|
|
1563 | { |
|
|
1564 | while (cnt--) |
|
|
1565 | { |
|
|
1566 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
|
|
1567 | verify_watcher (EV_A_ ws [cnt]); |
|
|
1568 | } |
|
|
1569 | } |
|
|
1570 | #endif |
|
|
1571 | |
|
|
1572 | void |
|
|
1573 | ev_loop_verify (EV_P) |
|
|
1574 | { |
|
|
1575 | #if EV_VERIFY |
|
|
1576 | int i; |
|
|
1577 | WL w; |
|
|
1578 | |
|
|
1579 | assert (activecnt >= -1); |
|
|
1580 | |
|
|
1581 | assert (fdchangemax >= fdchangecnt); |
|
|
1582 | for (i = 0; i < fdchangecnt; ++i) |
|
|
1583 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
|
|
1584 | |
|
|
1585 | assert (anfdmax >= 0); |
|
|
1586 | for (i = 0; i < anfdmax; ++i) |
|
|
1587 | for (w = anfds [i].head; w; w = w->next) |
|
|
1588 | { |
|
|
1589 | verify_watcher (EV_A_ (W)w); |
|
|
1590 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
|
|
1591 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
|
|
1592 | } |
|
|
1593 | |
|
|
1594 | assert (timermax >= timercnt); |
|
|
1595 | verify_heap (EV_A_ timers, timercnt); |
|
|
1596 | |
|
|
1597 | #if EV_PERIODIC_ENABLE |
|
|
1598 | assert (periodicmax >= periodiccnt); |
|
|
1599 | verify_heap (EV_A_ periodics, periodiccnt); |
|
|
1600 | #endif |
|
|
1601 | |
|
|
1602 | for (i = NUMPRI; i--; ) |
|
|
1603 | { |
|
|
1604 | assert (pendingmax [i] >= pendingcnt [i]); |
|
|
1605 | #if EV_IDLE_ENABLE |
|
|
1606 | assert (idleall >= 0); |
|
|
1607 | assert (idlemax [i] >= idlecnt [i]); |
|
|
1608 | array_verify (EV_A_ (W *)idles [i], idlecnt [i]); |
|
|
1609 | #endif |
|
|
1610 | } |
|
|
1611 | |
|
|
1612 | #if EV_FORK_ENABLE |
|
|
1613 | assert (forkmax >= forkcnt); |
|
|
1614 | array_verify (EV_A_ (W *)forks, forkcnt); |
|
|
1615 | #endif |
|
|
1616 | |
|
|
1617 | #if EV_ASYNC_ENABLE |
|
|
1618 | assert (asyncmax >= asynccnt); |
|
|
1619 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
|
|
1620 | #endif |
|
|
1621 | |
|
|
1622 | assert (preparemax >= preparecnt); |
|
|
1623 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
1624 | |
|
|
1625 | assert (checkmax >= checkcnt); |
|
|
1626 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
1627 | |
|
|
1628 | # if 0 |
|
|
1629 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1630 | for (signum = signalmax; signum--; ) if (signals [signum].gotsig) |
1094 | #endif |
1631 | # endif |
|
|
1632 | #endif |
|
|
1633 | } |
|
|
1634 | |
|
|
1635 | #endif /* multiplicity */ |
1095 | |
1636 | |
1096 | #if EV_MULTIPLICITY |
1637 | #if EV_MULTIPLICITY |
1097 | struct ev_loop * |
1638 | struct ev_loop * |
1098 | ev_default_loop_init (unsigned int flags) |
1639 | ev_default_loop_init (unsigned int flags) |
1099 | #else |
1640 | #else |
1100 | int |
1641 | int |
1101 | ev_default_loop (unsigned int flags) |
1642 | ev_default_loop (unsigned int flags) |
1102 | #endif |
1643 | #endif |
1103 | { |
1644 | { |
1104 | if (sigpipe [0] == sigpipe [1]) |
|
|
1105 | if (pipe (sigpipe)) |
|
|
1106 | return 0; |
|
|
1107 | |
|
|
1108 | if (!ev_default_loop_ptr) |
1645 | if (!ev_default_loop_ptr) |
1109 | { |
1646 | { |
1110 | #if EV_MULTIPLICITY |
1647 | #if EV_MULTIPLICITY |
1111 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1648 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1112 | #else |
1649 | #else |
… | |
… | |
1115 | |
1652 | |
1116 | loop_init (EV_A_ flags); |
1653 | loop_init (EV_A_ flags); |
1117 | |
1654 | |
1118 | if (ev_backend (EV_A)) |
1655 | if (ev_backend (EV_A)) |
1119 | { |
1656 | { |
1120 | siginit (EV_A); |
|
|
1121 | |
|
|
1122 | #ifndef _WIN32 |
1657 | #ifndef _WIN32 |
1123 | ev_signal_init (&childev, childcb, SIGCHLD); |
1658 | ev_signal_init (&childev, childcb, SIGCHLD); |
1124 | ev_set_priority (&childev, EV_MAXPRI); |
1659 | ev_set_priority (&childev, EV_MAXPRI); |
1125 | ev_signal_start (EV_A_ &childev); |
1660 | ev_signal_start (EV_A_ &childev); |
1126 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1661 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
… | |
… | |
1138 | { |
1673 | { |
1139 | #if EV_MULTIPLICITY |
1674 | #if EV_MULTIPLICITY |
1140 | struct ev_loop *loop = ev_default_loop_ptr; |
1675 | struct ev_loop *loop = ev_default_loop_ptr; |
1141 | #endif |
1676 | #endif |
1142 | |
1677 | |
|
|
1678 | ev_default_loop_ptr = 0; |
|
|
1679 | |
1143 | #ifndef _WIN32 |
1680 | #ifndef _WIN32 |
1144 | ev_ref (EV_A); /* child watcher */ |
1681 | ev_ref (EV_A); /* child watcher */ |
1145 | ev_signal_stop (EV_A_ &childev); |
1682 | ev_signal_stop (EV_A_ &childev); |
1146 | #endif |
1683 | #endif |
1147 | |
1684 | |
1148 | ev_ref (EV_A); /* signal watcher */ |
|
|
1149 | ev_io_stop (EV_A_ &sigev); |
|
|
1150 | |
|
|
1151 | close (sigpipe [0]); sigpipe [0] = 0; |
|
|
1152 | close (sigpipe [1]); sigpipe [1] = 0; |
|
|
1153 | |
|
|
1154 | loop_destroy (EV_A); |
1685 | loop_destroy (EV_A); |
1155 | } |
1686 | } |
1156 | |
1687 | |
1157 | void |
1688 | void |
1158 | ev_default_fork (void) |
1689 | ev_default_fork (void) |
1159 | { |
1690 | { |
1160 | #if EV_MULTIPLICITY |
1691 | #if EV_MULTIPLICITY |
1161 | struct ev_loop *loop = ev_default_loop_ptr; |
1692 | struct ev_loop *loop = ev_default_loop_ptr; |
1162 | #endif |
1693 | #endif |
1163 | |
1694 | |
1164 | if (backend) |
1695 | postfork = 1; /* must be in line with ev_loop_fork */ |
1165 | postfork = 1; |
|
|
1166 | } |
1696 | } |
1167 | |
1697 | |
1168 | /*****************************************************************************/ |
1698 | /*****************************************************************************/ |
1169 | |
1699 | |
1170 | void |
1700 | void |
… | |
… | |
1183 | { |
1713 | { |
1184 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1714 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1185 | |
1715 | |
1186 | if (expect_true (p->w)) |
1716 | if (expect_true (p->w)) |
1187 | { |
1717 | { |
1188 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
1718 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
1189 | |
1719 | |
1190 | p->w->pending = 0; |
1720 | p->w->pending = 0; |
1191 | EV_CB_INVOKE (p->w, p->events); |
1721 | EV_CB_INVOKE (p->w, p->events); |
|
|
1722 | EV_FREQUENT_CHECK; |
1192 | } |
1723 | } |
1193 | } |
1724 | } |
1194 | } |
1725 | } |
1195 | |
|
|
1196 | void inline_size |
|
|
1197 | timers_reify (EV_P) |
|
|
1198 | { |
|
|
1199 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
|
|
1200 | { |
|
|
1201 | ev_timer *w = timers [0]; |
|
|
1202 | |
|
|
1203 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1204 | |
|
|
1205 | /* first reschedule or stop timer */ |
|
|
1206 | if (w->repeat) |
|
|
1207 | { |
|
|
1208 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1209 | |
|
|
1210 | ((WT)w)->at += w->repeat; |
|
|
1211 | if (((WT)w)->at < mn_now) |
|
|
1212 | ((WT)w)->at = mn_now; |
|
|
1213 | |
|
|
1214 | downheap ((WT *)timers, timercnt, 0); |
|
|
1215 | } |
|
|
1216 | else |
|
|
1217 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1218 | |
|
|
1219 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
|
|
1220 | } |
|
|
1221 | } |
|
|
1222 | |
|
|
1223 | #if EV_PERIODIC_ENABLE |
|
|
1224 | void inline_size |
|
|
1225 | periodics_reify (EV_P) |
|
|
1226 | { |
|
|
1227 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
|
|
1228 | { |
|
|
1229 | ev_periodic *w = periodics [0]; |
|
|
1230 | |
|
|
1231 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
1232 | |
|
|
1233 | /* first reschedule or stop timer */ |
|
|
1234 | if (w->reschedule_cb) |
|
|
1235 | { |
|
|
1236 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); |
|
|
1237 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
|
|
1238 | downheap ((WT *)periodics, periodiccnt, 0); |
|
|
1239 | } |
|
|
1240 | else if (w->interval) |
|
|
1241 | { |
|
|
1242 | ((WT)w)->at = w->offset + floor ((ev_rt_now - w->offset) / w->interval + 1.) * w->interval; |
|
|
1243 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
|
|
1244 | downheap ((WT *)periodics, periodiccnt, 0); |
|
|
1245 | } |
|
|
1246 | else |
|
|
1247 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1248 | |
|
|
1249 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
|
|
1250 | } |
|
|
1251 | } |
|
|
1252 | |
|
|
1253 | static void noinline |
|
|
1254 | periodics_reschedule (EV_P) |
|
|
1255 | { |
|
|
1256 | int i; |
|
|
1257 | |
|
|
1258 | /* adjust periodics after time jump */ |
|
|
1259 | for (i = 0; i < periodiccnt; ++i) |
|
|
1260 | { |
|
|
1261 | ev_periodic *w = periodics [i]; |
|
|
1262 | |
|
|
1263 | if (w->reschedule_cb) |
|
|
1264 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
|
|
1265 | else if (w->interval) |
|
|
1266 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1267 | } |
|
|
1268 | |
|
|
1269 | /* now rebuild the heap */ |
|
|
1270 | for (i = periodiccnt >> 1; i--; ) |
|
|
1271 | downheap ((WT *)periodics, periodiccnt, i); |
|
|
1272 | } |
|
|
1273 | #endif |
|
|
1274 | |
1726 | |
1275 | #if EV_IDLE_ENABLE |
1727 | #if EV_IDLE_ENABLE |
1276 | void inline_size |
1728 | void inline_size |
1277 | idle_reify (EV_P) |
1729 | idle_reify (EV_P) |
1278 | { |
1730 | { |
… | |
… | |
1293 | } |
1745 | } |
1294 | } |
1746 | } |
1295 | } |
1747 | } |
1296 | #endif |
1748 | #endif |
1297 | |
1749 | |
1298 | int inline_size |
1750 | void inline_size |
1299 | time_update_monotonic (EV_P) |
1751 | timers_reify (EV_P) |
1300 | { |
1752 | { |
|
|
1753 | EV_FREQUENT_CHECK; |
|
|
1754 | |
|
|
1755 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
|
|
1756 | { |
|
|
1757 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
|
|
1758 | |
|
|
1759 | /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1760 | |
|
|
1761 | /* first reschedule or stop timer */ |
|
|
1762 | if (w->repeat) |
|
|
1763 | { |
|
|
1764 | ev_at (w) += w->repeat; |
|
|
1765 | if (ev_at (w) < mn_now) |
|
|
1766 | ev_at (w) = mn_now; |
|
|
1767 | |
|
|
1768 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1769 | |
|
|
1770 | ANHE_at_cache (timers [HEAP0]); |
|
|
1771 | downheap (timers, timercnt, HEAP0); |
|
|
1772 | } |
|
|
1773 | else |
|
|
1774 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1775 | |
|
|
1776 | EV_FREQUENT_CHECK; |
|
|
1777 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
|
|
1778 | } |
|
|
1779 | } |
|
|
1780 | |
|
|
1781 | #if EV_PERIODIC_ENABLE |
|
|
1782 | void inline_size |
|
|
1783 | periodics_reify (EV_P) |
|
|
1784 | { |
|
|
1785 | EV_FREQUENT_CHECK; |
|
|
1786 | |
|
|
1787 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
|
|
1788 | { |
|
|
1789 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
|
|
1790 | |
|
|
1791 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
1792 | |
|
|
1793 | /* first reschedule or stop timer */ |
|
|
1794 | if (w->reschedule_cb) |
|
|
1795 | { |
|
|
1796 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
1797 | |
|
|
1798 | assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
|
|
1799 | |
|
|
1800 | ANHE_at_cache (periodics [HEAP0]); |
|
|
1801 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1802 | } |
|
|
1803 | else if (w->interval) |
|
|
1804 | { |
|
|
1805 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1806 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
1807 | /* this might happen because of floating point inexactness */ |
|
|
1808 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
1809 | { |
|
|
1810 | ev_at (w) += w->interval; |
|
|
1811 | |
|
|
1812 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
1813 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
1814 | /* has effectively asked to get triggered more often than possible */ |
|
|
1815 | if (ev_at (w) < ev_rt_now) |
|
|
1816 | ev_at (w) = ev_rt_now; |
|
|
1817 | } |
|
|
1818 | |
|
|
1819 | ANHE_at_cache (periodics [HEAP0]); |
|
|
1820 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1821 | } |
|
|
1822 | else |
|
|
1823 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1824 | |
|
|
1825 | EV_FREQUENT_CHECK; |
|
|
1826 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
|
|
1827 | } |
|
|
1828 | } |
|
|
1829 | |
|
|
1830 | static void noinline |
|
|
1831 | periodics_reschedule (EV_P) |
|
|
1832 | { |
|
|
1833 | int i; |
|
|
1834 | |
|
|
1835 | /* adjust periodics after time jump */ |
|
|
1836 | for (i = HEAP0; i < periodiccnt + HEAP0; ++i) |
|
|
1837 | { |
|
|
1838 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
|
|
1839 | |
|
|
1840 | if (w->reschedule_cb) |
|
|
1841 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
1842 | else if (w->interval) |
|
|
1843 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1844 | |
|
|
1845 | ANHE_at_cache (periodics [i]); |
|
|
1846 | } |
|
|
1847 | |
|
|
1848 | reheap (periodics, periodiccnt); |
|
|
1849 | } |
|
|
1850 | #endif |
|
|
1851 | |
|
|
1852 | void inline_speed |
|
|
1853 | time_update (EV_P_ ev_tstamp max_block) |
|
|
1854 | { |
|
|
1855 | int i; |
|
|
1856 | |
|
|
1857 | #if EV_USE_MONOTONIC |
|
|
1858 | if (expect_true (have_monotonic)) |
|
|
1859 | { |
|
|
1860 | ev_tstamp odiff = rtmn_diff; |
|
|
1861 | |
1301 | mn_now = get_clock (); |
1862 | mn_now = get_clock (); |
1302 | |
1863 | |
|
|
1864 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
|
|
1865 | /* interpolate in the meantime */ |
1303 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1866 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1304 | { |
1867 | { |
1305 | ev_rt_now = rtmn_diff + mn_now; |
1868 | ev_rt_now = rtmn_diff + mn_now; |
1306 | return 0; |
1869 | return; |
1307 | } |
1870 | } |
1308 | else |
1871 | |
1309 | { |
|
|
1310 | now_floor = mn_now; |
1872 | now_floor = mn_now; |
1311 | ev_rt_now = ev_time (); |
1873 | ev_rt_now = ev_time (); |
1312 | return 1; |
|
|
1313 | } |
|
|
1314 | } |
|
|
1315 | |
1874 | |
1316 | void inline_size |
1875 | /* loop a few times, before making important decisions. |
1317 | time_update (EV_P) |
1876 | * on the choice of "4": one iteration isn't enough, |
1318 | { |
1877 | * in case we get preempted during the calls to |
1319 | int i; |
1878 | * ev_time and get_clock. a second call is almost guaranteed |
1320 | |
1879 | * to succeed in that case, though. and looping a few more times |
1321 | #if EV_USE_MONOTONIC |
1880 | * doesn't hurt either as we only do this on time-jumps or |
1322 | if (expect_true (have_monotonic)) |
1881 | * in the unlikely event of having been preempted here. |
1323 | { |
1882 | */ |
1324 | if (time_update_monotonic (EV_A)) |
1883 | for (i = 4; --i; ) |
1325 | { |
1884 | { |
1326 | ev_tstamp odiff = rtmn_diff; |
|
|
1327 | |
|
|
1328 | /* loop a few times, before making important decisions. |
|
|
1329 | * on the choice of "4": one iteration isn't enough, |
|
|
1330 | * in case we get preempted during the calls to |
|
|
1331 | * ev_time and get_clock. a second call is almost guaranteed |
|
|
1332 | * to succeed in that case, though. and looping a few more times |
|
|
1333 | * doesn't hurt either as we only do this on time-jumps or |
|
|
1334 | * in the unlikely event of having been preempted here. |
|
|
1335 | */ |
|
|
1336 | for (i = 4; --i; ) |
|
|
1337 | { |
|
|
1338 | rtmn_diff = ev_rt_now - mn_now; |
1885 | rtmn_diff = ev_rt_now - mn_now; |
1339 | |
1886 | |
1340 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1887 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
1341 | return; /* all is well */ |
1888 | return; /* all is well */ |
1342 | |
1889 | |
1343 | ev_rt_now = ev_time (); |
1890 | ev_rt_now = ev_time (); |
1344 | mn_now = get_clock (); |
1891 | mn_now = get_clock (); |
1345 | now_floor = mn_now; |
1892 | now_floor = mn_now; |
1346 | } |
1893 | } |
1347 | |
1894 | |
1348 | # if EV_PERIODIC_ENABLE |
1895 | # if EV_PERIODIC_ENABLE |
1349 | periodics_reschedule (EV_A); |
1896 | periodics_reschedule (EV_A); |
1350 | # endif |
1897 | # endif |
1351 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
1898 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
1352 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1899 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1353 | } |
|
|
1354 | } |
1900 | } |
1355 | else |
1901 | else |
1356 | #endif |
1902 | #endif |
1357 | { |
1903 | { |
1358 | ev_rt_now = ev_time (); |
1904 | ev_rt_now = ev_time (); |
1359 | |
1905 | |
1360 | if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
1906 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
1361 | { |
1907 | { |
1362 | #if EV_PERIODIC_ENABLE |
1908 | #if EV_PERIODIC_ENABLE |
1363 | periodics_reschedule (EV_A); |
1909 | periodics_reschedule (EV_A); |
1364 | #endif |
1910 | #endif |
1365 | |
|
|
1366 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
1911 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
1367 | for (i = 0; i < timercnt; ++i) |
1912 | for (i = 0; i < timercnt; ++i) |
|
|
1913 | { |
|
|
1914 | ANHE *he = timers + i + HEAP0; |
1368 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
1915 | ANHE_w (*he)->at += ev_rt_now - mn_now; |
|
|
1916 | ANHE_at_cache (*he); |
|
|
1917 | } |
1369 | } |
1918 | } |
1370 | |
1919 | |
1371 | mn_now = ev_rt_now; |
1920 | mn_now = ev_rt_now; |
1372 | } |
1921 | } |
1373 | } |
1922 | } |
… | |
… | |
1382 | ev_unref (EV_P) |
1931 | ev_unref (EV_P) |
1383 | { |
1932 | { |
1384 | --activecnt; |
1933 | --activecnt; |
1385 | } |
1934 | } |
1386 | |
1935 | |
|
|
1936 | void |
|
|
1937 | ev_now_update (EV_P) |
|
|
1938 | { |
|
|
1939 | time_update (EV_A_ 1e100); |
|
|
1940 | } |
|
|
1941 | |
1387 | static int loop_done; |
1942 | static int loop_done; |
1388 | |
1943 | |
1389 | void |
1944 | void |
1390 | ev_loop (EV_P_ int flags) |
1945 | ev_loop (EV_P_ int flags) |
1391 | { |
1946 | { |
1392 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) |
1947 | loop_done = EVUNLOOP_CANCEL; |
1393 | ? EVUNLOOP_ONE |
|
|
1394 | : EVUNLOOP_CANCEL; |
|
|
1395 | |
1948 | |
1396 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
1949 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
1397 | |
1950 | |
1398 | do |
1951 | do |
1399 | { |
1952 | { |
|
|
1953 | #if EV_VERIFY >= 2 |
|
|
1954 | ev_loop_verify (EV_A); |
|
|
1955 | #endif |
|
|
1956 | |
1400 | #ifndef _WIN32 |
1957 | #ifndef _WIN32 |
1401 | if (expect_false (curpid)) /* penalise the forking check even more */ |
1958 | if (expect_false (curpid)) /* penalise the forking check even more */ |
1402 | if (expect_false (getpid () != curpid)) |
1959 | if (expect_false (getpid () != curpid)) |
1403 | { |
1960 | { |
1404 | curpid = getpid (); |
1961 | curpid = getpid (); |
… | |
… | |
1433 | /* update fd-related kernel structures */ |
1990 | /* update fd-related kernel structures */ |
1434 | fd_reify (EV_A); |
1991 | fd_reify (EV_A); |
1435 | |
1992 | |
1436 | /* calculate blocking time */ |
1993 | /* calculate blocking time */ |
1437 | { |
1994 | { |
1438 | ev_tstamp block; |
1995 | ev_tstamp waittime = 0.; |
|
|
1996 | ev_tstamp sleeptime = 0.; |
1439 | |
1997 | |
1440 | if (expect_false (flags & EVLOOP_NONBLOCK || idleall || !activecnt)) |
1998 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
1441 | block = 0.; /* do not block at all */ |
|
|
1442 | else |
|
|
1443 | { |
1999 | { |
1444 | /* update time to cancel out callback processing overhead */ |
2000 | /* update time to cancel out callback processing overhead */ |
1445 | #if EV_USE_MONOTONIC |
|
|
1446 | if (expect_true (have_monotonic)) |
|
|
1447 | time_update_monotonic (EV_A); |
2001 | time_update (EV_A_ 1e100); |
1448 | else |
|
|
1449 | #endif |
|
|
1450 | { |
|
|
1451 | ev_rt_now = ev_time (); |
|
|
1452 | mn_now = ev_rt_now; |
|
|
1453 | } |
|
|
1454 | |
2002 | |
1455 | block = MAX_BLOCKTIME; |
2003 | waittime = MAX_BLOCKTIME; |
1456 | |
2004 | |
1457 | if (timercnt) |
2005 | if (timercnt) |
1458 | { |
2006 | { |
1459 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
2007 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
1460 | if (block > to) block = to; |
2008 | if (waittime > to) waittime = to; |
1461 | } |
2009 | } |
1462 | |
2010 | |
1463 | #if EV_PERIODIC_ENABLE |
2011 | #if EV_PERIODIC_ENABLE |
1464 | if (periodiccnt) |
2012 | if (periodiccnt) |
1465 | { |
2013 | { |
1466 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
2014 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
1467 | if (block > to) block = to; |
2015 | if (waittime > to) waittime = to; |
1468 | } |
2016 | } |
1469 | #endif |
2017 | #endif |
1470 | |
2018 | |
1471 | if (expect_false (block < 0.)) block = 0.; |
2019 | if (expect_false (waittime < timeout_blocktime)) |
|
|
2020 | waittime = timeout_blocktime; |
|
|
2021 | |
|
|
2022 | sleeptime = waittime - backend_fudge; |
|
|
2023 | |
|
|
2024 | if (expect_true (sleeptime > io_blocktime)) |
|
|
2025 | sleeptime = io_blocktime; |
|
|
2026 | |
|
|
2027 | if (sleeptime) |
|
|
2028 | { |
|
|
2029 | ev_sleep (sleeptime); |
|
|
2030 | waittime -= sleeptime; |
|
|
2031 | } |
1472 | } |
2032 | } |
1473 | |
2033 | |
1474 | ++loop_count; |
2034 | ++loop_count; |
1475 | backend_poll (EV_A_ block); |
2035 | backend_poll (EV_A_ waittime); |
|
|
2036 | |
|
|
2037 | /* update ev_rt_now, do magic */ |
|
|
2038 | time_update (EV_A_ waittime + sleeptime); |
1476 | } |
2039 | } |
1477 | |
|
|
1478 | /* update ev_rt_now, do magic */ |
|
|
1479 | time_update (EV_A); |
|
|
1480 | |
2040 | |
1481 | /* queue pending timers and reschedule them */ |
2041 | /* queue pending timers and reschedule them */ |
1482 | timers_reify (EV_A); /* relative timers called last */ |
2042 | timers_reify (EV_A); /* relative timers called last */ |
1483 | #if EV_PERIODIC_ENABLE |
2043 | #if EV_PERIODIC_ENABLE |
1484 | periodics_reify (EV_A); /* absolute timers called first */ |
2044 | periodics_reify (EV_A); /* absolute timers called first */ |
… | |
… | |
1492 | /* queue check watchers, to be executed first */ |
2052 | /* queue check watchers, to be executed first */ |
1493 | if (expect_false (checkcnt)) |
2053 | if (expect_false (checkcnt)) |
1494 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2054 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1495 | |
2055 | |
1496 | call_pending (EV_A); |
2056 | call_pending (EV_A); |
1497 | |
|
|
1498 | } |
2057 | } |
1499 | while (expect_true (activecnt && !loop_done)); |
2058 | while (expect_true ( |
|
|
2059 | activecnt |
|
|
2060 | && !loop_done |
|
|
2061 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
|
|
2062 | )); |
1500 | |
2063 | |
1501 | if (loop_done == EVUNLOOP_ONE) |
2064 | if (loop_done == EVUNLOOP_ONE) |
1502 | loop_done = EVUNLOOP_CANCEL; |
2065 | loop_done = EVUNLOOP_CANCEL; |
1503 | } |
2066 | } |
1504 | |
2067 | |
… | |
… | |
1591 | int fd = w->fd; |
2154 | int fd = w->fd; |
1592 | |
2155 | |
1593 | if (expect_false (ev_is_active (w))) |
2156 | if (expect_false (ev_is_active (w))) |
1594 | return; |
2157 | return; |
1595 | |
2158 | |
1596 | assert (("ev_io_start called with negative fd", fd >= 0)); |
2159 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
|
|
2160 | assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV_IOFDSET | EV_READ | EV_WRITE)))); |
|
|
2161 | |
|
|
2162 | EV_FREQUENT_CHECK; |
1597 | |
2163 | |
1598 | ev_start (EV_A_ (W)w, 1); |
2164 | ev_start (EV_A_ (W)w, 1); |
1599 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
2165 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
1600 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
2166 | wlist_add (&anfds[fd].head, (WL)w); |
1601 | |
2167 | |
1602 | fd_change (EV_A_ fd); |
2168 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
|
|
2169 | w->events &= ~EV_IOFDSET; |
|
|
2170 | |
|
|
2171 | EV_FREQUENT_CHECK; |
1603 | } |
2172 | } |
1604 | |
2173 | |
1605 | void noinline |
2174 | void noinline |
1606 | ev_io_stop (EV_P_ ev_io *w) |
2175 | ev_io_stop (EV_P_ ev_io *w) |
1607 | { |
2176 | { |
1608 | clear_pending (EV_A_ (W)w); |
2177 | clear_pending (EV_A_ (W)w); |
1609 | if (expect_false (!ev_is_active (w))) |
2178 | if (expect_false (!ev_is_active (w))) |
1610 | return; |
2179 | return; |
1611 | |
2180 | |
1612 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2181 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
1613 | |
2182 | |
|
|
2183 | EV_FREQUENT_CHECK; |
|
|
2184 | |
1614 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
2185 | wlist_del (&anfds[w->fd].head, (WL)w); |
1615 | ev_stop (EV_A_ (W)w); |
2186 | ev_stop (EV_A_ (W)w); |
1616 | |
2187 | |
1617 | fd_change (EV_A_ w->fd); |
2188 | fd_change (EV_A_ w->fd, 1); |
|
|
2189 | |
|
|
2190 | EV_FREQUENT_CHECK; |
1618 | } |
2191 | } |
1619 | |
2192 | |
1620 | void noinline |
2193 | void noinline |
1621 | ev_timer_start (EV_P_ ev_timer *w) |
2194 | ev_timer_start (EV_P_ ev_timer *w) |
1622 | { |
2195 | { |
1623 | if (expect_false (ev_is_active (w))) |
2196 | if (expect_false (ev_is_active (w))) |
1624 | return; |
2197 | return; |
1625 | |
2198 | |
1626 | ((WT)w)->at += mn_now; |
2199 | ev_at (w) += mn_now; |
1627 | |
2200 | |
1628 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2201 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1629 | |
2202 | |
|
|
2203 | EV_FREQUENT_CHECK; |
|
|
2204 | |
|
|
2205 | ++timercnt; |
1630 | ev_start (EV_A_ (W)w, ++timercnt); |
2206 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
1631 | array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2); |
2207 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
1632 | timers [timercnt - 1] = w; |
2208 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
1633 | upheap ((WT *)timers, timercnt - 1); |
2209 | ANHE_at_cache (timers [ev_active (w)]); |
|
|
2210 | upheap (timers, ev_active (w)); |
1634 | |
2211 | |
|
|
2212 | EV_FREQUENT_CHECK; |
|
|
2213 | |
1635 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
2214 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
1636 | } |
2215 | } |
1637 | |
2216 | |
1638 | void noinline |
2217 | void noinline |
1639 | ev_timer_stop (EV_P_ ev_timer *w) |
2218 | ev_timer_stop (EV_P_ ev_timer *w) |
1640 | { |
2219 | { |
1641 | clear_pending (EV_A_ (W)w); |
2220 | clear_pending (EV_A_ (W)w); |
1642 | if (expect_false (!ev_is_active (w))) |
2221 | if (expect_false (!ev_is_active (w))) |
1643 | return; |
2222 | return; |
1644 | |
2223 | |
1645 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
2224 | EV_FREQUENT_CHECK; |
1646 | |
2225 | |
1647 | { |
2226 | { |
1648 | int active = ((W)w)->active; |
2227 | int active = ev_active (w); |
1649 | |
2228 | |
|
|
2229 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
|
|
2230 | |
|
|
2231 | --timercnt; |
|
|
2232 | |
1650 | if (expect_true (--active < --timercnt)) |
2233 | if (expect_true (active < timercnt + HEAP0)) |
1651 | { |
2234 | { |
1652 | timers [active] = timers [timercnt]; |
2235 | timers [active] = timers [timercnt + HEAP0]; |
1653 | adjustheap ((WT *)timers, timercnt, active); |
2236 | adjustheap (timers, timercnt, active); |
1654 | } |
2237 | } |
1655 | } |
2238 | } |
1656 | |
2239 | |
1657 | ((WT)w)->at -= mn_now; |
2240 | EV_FREQUENT_CHECK; |
|
|
2241 | |
|
|
2242 | ev_at (w) -= mn_now; |
1658 | |
2243 | |
1659 | ev_stop (EV_A_ (W)w); |
2244 | ev_stop (EV_A_ (W)w); |
1660 | } |
2245 | } |
1661 | |
2246 | |
1662 | void noinline |
2247 | void noinline |
1663 | ev_timer_again (EV_P_ ev_timer *w) |
2248 | ev_timer_again (EV_P_ ev_timer *w) |
1664 | { |
2249 | { |
|
|
2250 | EV_FREQUENT_CHECK; |
|
|
2251 | |
1665 | if (ev_is_active (w)) |
2252 | if (ev_is_active (w)) |
1666 | { |
2253 | { |
1667 | if (w->repeat) |
2254 | if (w->repeat) |
1668 | { |
2255 | { |
1669 | ((WT)w)->at = mn_now + w->repeat; |
2256 | ev_at (w) = mn_now + w->repeat; |
|
|
2257 | ANHE_at_cache (timers [ev_active (w)]); |
1670 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
2258 | adjustheap (timers, timercnt, ev_active (w)); |
1671 | } |
2259 | } |
1672 | else |
2260 | else |
1673 | ev_timer_stop (EV_A_ w); |
2261 | ev_timer_stop (EV_A_ w); |
1674 | } |
2262 | } |
1675 | else if (w->repeat) |
2263 | else if (w->repeat) |
1676 | { |
2264 | { |
1677 | w->at = w->repeat; |
2265 | ev_at (w) = w->repeat; |
1678 | ev_timer_start (EV_A_ w); |
2266 | ev_timer_start (EV_A_ w); |
1679 | } |
2267 | } |
|
|
2268 | |
|
|
2269 | EV_FREQUENT_CHECK; |
1680 | } |
2270 | } |
1681 | |
2271 | |
1682 | #if EV_PERIODIC_ENABLE |
2272 | #if EV_PERIODIC_ENABLE |
1683 | void noinline |
2273 | void noinline |
1684 | ev_periodic_start (EV_P_ ev_periodic *w) |
2274 | ev_periodic_start (EV_P_ ev_periodic *w) |
1685 | { |
2275 | { |
1686 | if (expect_false (ev_is_active (w))) |
2276 | if (expect_false (ev_is_active (w))) |
1687 | return; |
2277 | return; |
1688 | |
2278 | |
1689 | if (w->reschedule_cb) |
2279 | if (w->reschedule_cb) |
1690 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
2280 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1691 | else if (w->interval) |
2281 | else if (w->interval) |
1692 | { |
2282 | { |
1693 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2283 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1694 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2284 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1695 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2285 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1696 | } |
2286 | } |
1697 | else |
2287 | else |
1698 | ((WT)w)->at = w->offset; |
2288 | ev_at (w) = w->offset; |
1699 | |
2289 | |
|
|
2290 | EV_FREQUENT_CHECK; |
|
|
2291 | |
|
|
2292 | ++periodiccnt; |
1700 | ev_start (EV_A_ (W)w, ++periodiccnt); |
2293 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
1701 | array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); |
2294 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
1702 | periodics [periodiccnt - 1] = w; |
2295 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
1703 | upheap ((WT *)periodics, periodiccnt - 1); |
2296 | ANHE_at_cache (periodics [ev_active (w)]); |
|
|
2297 | upheap (periodics, ev_active (w)); |
1704 | |
2298 | |
|
|
2299 | EV_FREQUENT_CHECK; |
|
|
2300 | |
1705 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
2301 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
1706 | } |
2302 | } |
1707 | |
2303 | |
1708 | void noinline |
2304 | void noinline |
1709 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2305 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1710 | { |
2306 | { |
1711 | clear_pending (EV_A_ (W)w); |
2307 | clear_pending (EV_A_ (W)w); |
1712 | if (expect_false (!ev_is_active (w))) |
2308 | if (expect_false (!ev_is_active (w))) |
1713 | return; |
2309 | return; |
1714 | |
2310 | |
1715 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
2311 | EV_FREQUENT_CHECK; |
1716 | |
2312 | |
1717 | { |
2313 | { |
1718 | int active = ((W)w)->active; |
2314 | int active = ev_active (w); |
1719 | |
2315 | |
|
|
2316 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
|
|
2317 | |
|
|
2318 | --periodiccnt; |
|
|
2319 | |
1720 | if (expect_true (--active < --periodiccnt)) |
2320 | if (expect_true (active < periodiccnt + HEAP0)) |
1721 | { |
2321 | { |
1722 | periodics [active] = periodics [periodiccnt]; |
2322 | periodics [active] = periodics [periodiccnt + HEAP0]; |
1723 | adjustheap ((WT *)periodics, periodiccnt, active); |
2323 | adjustheap (periodics, periodiccnt, active); |
1724 | } |
2324 | } |
1725 | } |
2325 | } |
|
|
2326 | |
|
|
2327 | EV_FREQUENT_CHECK; |
1726 | |
2328 | |
1727 | ev_stop (EV_A_ (W)w); |
2329 | ev_stop (EV_A_ (W)w); |
1728 | } |
2330 | } |
1729 | |
2331 | |
1730 | void noinline |
2332 | void noinline |
… | |
… | |
1742 | |
2344 | |
1743 | void noinline |
2345 | void noinline |
1744 | ev_signal_start (EV_P_ ev_signal *w) |
2346 | ev_signal_start (EV_P_ ev_signal *w) |
1745 | { |
2347 | { |
1746 | #if EV_MULTIPLICITY |
2348 | #if EV_MULTIPLICITY |
1747 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2349 | assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1748 | #endif |
2350 | #endif |
1749 | if (expect_false (ev_is_active (w))) |
2351 | if (expect_false (ev_is_active (w))) |
1750 | return; |
2352 | return; |
1751 | |
2353 | |
1752 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2354 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); |
|
|
2355 | |
|
|
2356 | evpipe_init (EV_A); |
|
|
2357 | |
|
|
2358 | EV_FREQUENT_CHECK; |
|
|
2359 | |
|
|
2360 | { |
|
|
2361 | #ifndef _WIN32 |
|
|
2362 | sigset_t full, prev; |
|
|
2363 | sigfillset (&full); |
|
|
2364 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2365 | #endif |
|
|
2366 | |
|
|
2367 | array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); |
|
|
2368 | |
|
|
2369 | #ifndef _WIN32 |
|
|
2370 | sigprocmask (SIG_SETMASK, &prev, 0); |
|
|
2371 | #endif |
|
|
2372 | } |
1753 | |
2373 | |
1754 | ev_start (EV_A_ (W)w, 1); |
2374 | ev_start (EV_A_ (W)w, 1); |
1755 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
|
|
1756 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
2375 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
1757 | |
2376 | |
1758 | if (!((WL)w)->next) |
2377 | if (!((WL)w)->next) |
1759 | { |
2378 | { |
1760 | #if _WIN32 |
2379 | #if _WIN32 |
1761 | signal (w->signum, sighandler); |
2380 | signal (w->signum, ev_sighandler); |
1762 | #else |
2381 | #else |
1763 | struct sigaction sa; |
2382 | struct sigaction sa; |
1764 | sa.sa_handler = sighandler; |
2383 | sa.sa_handler = ev_sighandler; |
1765 | sigfillset (&sa.sa_mask); |
2384 | sigfillset (&sa.sa_mask); |
1766 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2385 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1767 | sigaction (w->signum, &sa, 0); |
2386 | sigaction (w->signum, &sa, 0); |
1768 | #endif |
2387 | #endif |
1769 | } |
2388 | } |
|
|
2389 | |
|
|
2390 | EV_FREQUENT_CHECK; |
1770 | } |
2391 | } |
1771 | |
2392 | |
1772 | void noinline |
2393 | void noinline |
1773 | ev_signal_stop (EV_P_ ev_signal *w) |
2394 | ev_signal_stop (EV_P_ ev_signal *w) |
1774 | { |
2395 | { |
1775 | clear_pending (EV_A_ (W)w); |
2396 | clear_pending (EV_A_ (W)w); |
1776 | if (expect_false (!ev_is_active (w))) |
2397 | if (expect_false (!ev_is_active (w))) |
1777 | return; |
2398 | return; |
1778 | |
2399 | |
|
|
2400 | EV_FREQUENT_CHECK; |
|
|
2401 | |
1779 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
2402 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
1780 | ev_stop (EV_A_ (W)w); |
2403 | ev_stop (EV_A_ (W)w); |
1781 | |
2404 | |
1782 | if (!signals [w->signum - 1].head) |
2405 | if (!signals [w->signum - 1].head) |
1783 | signal (w->signum, SIG_DFL); |
2406 | signal (w->signum, SIG_DFL); |
|
|
2407 | |
|
|
2408 | EV_FREQUENT_CHECK; |
1784 | } |
2409 | } |
1785 | |
2410 | |
1786 | void |
2411 | void |
1787 | ev_child_start (EV_P_ ev_child *w) |
2412 | ev_child_start (EV_P_ ev_child *w) |
1788 | { |
2413 | { |
1789 | #if EV_MULTIPLICITY |
2414 | #if EV_MULTIPLICITY |
1790 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2415 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1791 | #endif |
2416 | #endif |
1792 | if (expect_false (ev_is_active (w))) |
2417 | if (expect_false (ev_is_active (w))) |
1793 | return; |
2418 | return; |
1794 | |
2419 | |
|
|
2420 | EV_FREQUENT_CHECK; |
|
|
2421 | |
1795 | ev_start (EV_A_ (W)w, 1); |
2422 | ev_start (EV_A_ (W)w, 1); |
1796 | wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2423 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
|
|
2424 | |
|
|
2425 | EV_FREQUENT_CHECK; |
1797 | } |
2426 | } |
1798 | |
2427 | |
1799 | void |
2428 | void |
1800 | ev_child_stop (EV_P_ ev_child *w) |
2429 | ev_child_stop (EV_P_ ev_child *w) |
1801 | { |
2430 | { |
1802 | clear_pending (EV_A_ (W)w); |
2431 | clear_pending (EV_A_ (W)w); |
1803 | if (expect_false (!ev_is_active (w))) |
2432 | if (expect_false (!ev_is_active (w))) |
1804 | return; |
2433 | return; |
1805 | |
2434 | |
|
|
2435 | EV_FREQUENT_CHECK; |
|
|
2436 | |
1806 | wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2437 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1807 | ev_stop (EV_A_ (W)w); |
2438 | ev_stop (EV_A_ (W)w); |
|
|
2439 | |
|
|
2440 | EV_FREQUENT_CHECK; |
1808 | } |
2441 | } |
1809 | |
2442 | |
1810 | #if EV_STAT_ENABLE |
2443 | #if EV_STAT_ENABLE |
1811 | |
2444 | |
1812 | # ifdef _WIN32 |
2445 | # ifdef _WIN32 |
1813 | # undef lstat |
2446 | # undef lstat |
1814 | # define lstat(a,b) _stati64 (a,b) |
2447 | # define lstat(a,b) _stati64 (a,b) |
1815 | # endif |
2448 | # endif |
1816 | |
2449 | |
1817 | #define DEF_STAT_INTERVAL 5.0074891 |
2450 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
2451 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
1818 | #define MIN_STAT_INTERVAL 0.1074891 |
2452 | #define MIN_STAT_INTERVAL 0.1074891 |
1819 | |
2453 | |
1820 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2454 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
1821 | |
2455 | |
1822 | #if EV_USE_INOTIFY |
2456 | #if EV_USE_INOTIFY |
1823 | # define EV_INOTIFY_BUFSIZE 8192 |
2457 | # define EV_INOTIFY_BUFSIZE 8192 |
… | |
… | |
1827 | { |
2461 | { |
1828 | w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); |
2462 | w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); |
1829 | |
2463 | |
1830 | if (w->wd < 0) |
2464 | if (w->wd < 0) |
1831 | { |
2465 | { |
|
|
2466 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
1832 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2467 | ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
1833 | |
2468 | |
1834 | /* monitor some parent directory for speedup hints */ |
2469 | /* monitor some parent directory for speedup hints */ |
|
|
2470 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
|
|
2471 | /* but an efficiency issue only */ |
1835 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2472 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
1836 | { |
2473 | { |
1837 | char path [4096]; |
2474 | char path [4096]; |
1838 | strcpy (path, w->path); |
2475 | strcpy (path, w->path); |
1839 | |
2476 | |
… | |
… | |
1842 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2479 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
1843 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2480 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
1844 | |
2481 | |
1845 | char *pend = strrchr (path, '/'); |
2482 | char *pend = strrchr (path, '/'); |
1846 | |
2483 | |
1847 | if (!pend) |
2484 | if (!pend || pend == path) |
1848 | break; /* whoops, no '/', complain to your admin */ |
2485 | break; |
1849 | |
2486 | |
1850 | *pend = 0; |
2487 | *pend = 0; |
1851 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2488 | w->wd = inotify_add_watch (fs_fd, path, mask); |
1852 | } |
2489 | } |
1853 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2490 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
1854 | } |
2491 | } |
1855 | } |
2492 | } |
1856 | else |
|
|
1857 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
1858 | |
2493 | |
1859 | if (w->wd >= 0) |
2494 | if (w->wd >= 0) |
|
|
2495 | { |
1860 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2496 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
2497 | |
|
|
2498 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
2499 | /* unless the filesystem it known to be local, we therefore still poll */ |
|
|
2500 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2501 | struct statfs sfs; |
|
|
2502 | |
|
|
2503 | if (fs_2625 && !statfs (w->path, &sfs)) |
|
|
2504 | if (sfs.f_type == 0x1373 /* devfs */ |
|
|
2505 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2506 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2507 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2508 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2509 | || sfs.f_type == 0x58465342 /* xfs */) |
|
|
2510 | return; |
|
|
2511 | |
|
|
2512 | w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2513 | ev_timer_again (EV_A_ &w->timer); |
|
|
2514 | } |
1861 | } |
2515 | } |
1862 | |
2516 | |
1863 | static void noinline |
2517 | static void noinline |
1864 | infy_del (EV_P_ ev_stat *w) |
2518 | infy_del (EV_P_ ev_stat *w) |
1865 | { |
2519 | { |
… | |
… | |
1879 | |
2533 | |
1880 | static void noinline |
2534 | static void noinline |
1881 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2535 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
1882 | { |
2536 | { |
1883 | if (slot < 0) |
2537 | if (slot < 0) |
1884 | /* overflow, need to check for all hahs slots */ |
2538 | /* overflow, need to check for all hash slots */ |
1885 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2539 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
1886 | infy_wd (EV_A_ slot, wd, ev); |
2540 | infy_wd (EV_A_ slot, wd, ev); |
1887 | else |
2541 | else |
1888 | { |
2542 | { |
1889 | WL w_; |
2543 | WL w_; |
… | |
… | |
1895 | |
2549 | |
1896 | if (w->wd == wd || wd == -1) |
2550 | if (w->wd == wd || wd == -1) |
1897 | { |
2551 | { |
1898 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2552 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
1899 | { |
2553 | { |
|
|
2554 | wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
1900 | w->wd = -1; |
2555 | w->wd = -1; |
1901 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2556 | infy_add (EV_A_ w); /* re-add, no matter what */ |
1902 | } |
2557 | } |
1903 | |
2558 | |
1904 | stat_timer_cb (EV_A_ &w->timer, 0); |
2559 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
1918 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
2573 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
1919 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
2574 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
1920 | } |
2575 | } |
1921 | |
2576 | |
1922 | void inline_size |
2577 | void inline_size |
|
|
2578 | check_2625 (EV_P) |
|
|
2579 | { |
|
|
2580 | /* kernels < 2.6.25 are borked |
|
|
2581 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
|
|
2582 | */ |
|
|
2583 | struct utsname buf; |
|
|
2584 | int major, minor, micro; |
|
|
2585 | |
|
|
2586 | if (uname (&buf)) |
|
|
2587 | return; |
|
|
2588 | |
|
|
2589 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
|
|
2590 | return; |
|
|
2591 | |
|
|
2592 | if (major < 2 |
|
|
2593 | || (major == 2 && minor < 6) |
|
|
2594 | || (major == 2 && minor == 6 && micro < 25)) |
|
|
2595 | return; |
|
|
2596 | |
|
|
2597 | fs_2625 = 1; |
|
|
2598 | } |
|
|
2599 | |
|
|
2600 | void inline_size |
1923 | infy_init (EV_P) |
2601 | infy_init (EV_P) |
1924 | { |
2602 | { |
1925 | if (fs_fd != -2) |
2603 | if (fs_fd != -2) |
1926 | return; |
2604 | return; |
|
|
2605 | |
|
|
2606 | fs_fd = -1; |
|
|
2607 | |
|
|
2608 | check_2625 (EV_A); |
1927 | |
2609 | |
1928 | fs_fd = inotify_init (); |
2610 | fs_fd = inotify_init (); |
1929 | |
2611 | |
1930 | if (fs_fd >= 0) |
2612 | if (fs_fd >= 0) |
1931 | { |
2613 | { |
… | |
… | |
1959 | w->wd = -1; |
2641 | w->wd = -1; |
1960 | |
2642 | |
1961 | if (fs_fd >= 0) |
2643 | if (fs_fd >= 0) |
1962 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2644 | infy_add (EV_A_ w); /* re-add, no matter what */ |
1963 | else |
2645 | else |
1964 | ev_timer_start (EV_A_ &w->timer); |
2646 | ev_timer_again (EV_A_ &w->timer); |
1965 | } |
2647 | } |
1966 | |
|
|
1967 | } |
2648 | } |
1968 | } |
2649 | } |
1969 | |
2650 | |
|
|
2651 | #endif |
|
|
2652 | |
|
|
2653 | #ifdef _WIN32 |
|
|
2654 | # define EV_LSTAT(p,b) _stati64 (p, b) |
|
|
2655 | #else |
|
|
2656 | # define EV_LSTAT(p,b) lstat (p, b) |
1970 | #endif |
2657 | #endif |
1971 | |
2658 | |
1972 | void |
2659 | void |
1973 | ev_stat_stat (EV_P_ ev_stat *w) |
2660 | ev_stat_stat (EV_P_ ev_stat *w) |
1974 | { |
2661 | { |
… | |
… | |
2001 | || w->prev.st_atime != w->attr.st_atime |
2688 | || w->prev.st_atime != w->attr.st_atime |
2002 | || w->prev.st_mtime != w->attr.st_mtime |
2689 | || w->prev.st_mtime != w->attr.st_mtime |
2003 | || w->prev.st_ctime != w->attr.st_ctime |
2690 | || w->prev.st_ctime != w->attr.st_ctime |
2004 | ) { |
2691 | ) { |
2005 | #if EV_USE_INOTIFY |
2692 | #if EV_USE_INOTIFY |
|
|
2693 | if (fs_fd >= 0) |
|
|
2694 | { |
2006 | infy_del (EV_A_ w); |
2695 | infy_del (EV_A_ w); |
2007 | infy_add (EV_A_ w); |
2696 | infy_add (EV_A_ w); |
2008 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
2697 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
2698 | } |
2009 | #endif |
2699 | #endif |
2010 | |
2700 | |
2011 | ev_feed_event (EV_A_ w, EV_STAT); |
2701 | ev_feed_event (EV_A_ w, EV_STAT); |
2012 | } |
2702 | } |
2013 | } |
2703 | } |
… | |
… | |
2016 | ev_stat_start (EV_P_ ev_stat *w) |
2706 | ev_stat_start (EV_P_ ev_stat *w) |
2017 | { |
2707 | { |
2018 | if (expect_false (ev_is_active (w))) |
2708 | if (expect_false (ev_is_active (w))) |
2019 | return; |
2709 | return; |
2020 | |
2710 | |
2021 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2022 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2023 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2024 | |
|
|
2025 | ev_stat_stat (EV_A_ w); |
2711 | ev_stat_stat (EV_A_ w); |
2026 | |
2712 | |
|
|
2713 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
2027 | if (w->interval < MIN_STAT_INTERVAL) |
2714 | w->interval = MIN_STAT_INTERVAL; |
2028 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2029 | |
2715 | |
2030 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
2716 | ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL); |
2031 | ev_set_priority (&w->timer, ev_priority (w)); |
2717 | ev_set_priority (&w->timer, ev_priority (w)); |
2032 | |
2718 | |
2033 | #if EV_USE_INOTIFY |
2719 | #if EV_USE_INOTIFY |
2034 | infy_init (EV_A); |
2720 | infy_init (EV_A); |
2035 | |
2721 | |
2036 | if (fs_fd >= 0) |
2722 | if (fs_fd >= 0) |
2037 | infy_add (EV_A_ w); |
2723 | infy_add (EV_A_ w); |
2038 | else |
2724 | else |
2039 | #endif |
2725 | #endif |
2040 | ev_timer_start (EV_A_ &w->timer); |
2726 | ev_timer_again (EV_A_ &w->timer); |
2041 | |
2727 | |
2042 | ev_start (EV_A_ (W)w, 1); |
2728 | ev_start (EV_A_ (W)w, 1); |
|
|
2729 | |
|
|
2730 | EV_FREQUENT_CHECK; |
2043 | } |
2731 | } |
2044 | |
2732 | |
2045 | void |
2733 | void |
2046 | ev_stat_stop (EV_P_ ev_stat *w) |
2734 | ev_stat_stop (EV_P_ ev_stat *w) |
2047 | { |
2735 | { |
2048 | clear_pending (EV_A_ (W)w); |
2736 | clear_pending (EV_A_ (W)w); |
2049 | if (expect_false (!ev_is_active (w))) |
2737 | if (expect_false (!ev_is_active (w))) |
2050 | return; |
2738 | return; |
2051 | |
2739 | |
|
|
2740 | EV_FREQUENT_CHECK; |
|
|
2741 | |
2052 | #if EV_USE_INOTIFY |
2742 | #if EV_USE_INOTIFY |
2053 | infy_del (EV_A_ w); |
2743 | infy_del (EV_A_ w); |
2054 | #endif |
2744 | #endif |
2055 | ev_timer_stop (EV_A_ &w->timer); |
2745 | ev_timer_stop (EV_A_ &w->timer); |
2056 | |
2746 | |
2057 | ev_stop (EV_A_ (W)w); |
2747 | ev_stop (EV_A_ (W)w); |
|
|
2748 | |
|
|
2749 | EV_FREQUENT_CHECK; |
2058 | } |
2750 | } |
2059 | #endif |
2751 | #endif |
2060 | |
2752 | |
2061 | #if EV_IDLE_ENABLE |
2753 | #if EV_IDLE_ENABLE |
2062 | void |
2754 | void |
… | |
… | |
2064 | { |
2756 | { |
2065 | if (expect_false (ev_is_active (w))) |
2757 | if (expect_false (ev_is_active (w))) |
2066 | return; |
2758 | return; |
2067 | |
2759 | |
2068 | pri_adjust (EV_A_ (W)w); |
2760 | pri_adjust (EV_A_ (W)w); |
|
|
2761 | |
|
|
2762 | EV_FREQUENT_CHECK; |
2069 | |
2763 | |
2070 | { |
2764 | { |
2071 | int active = ++idlecnt [ABSPRI (w)]; |
2765 | int active = ++idlecnt [ABSPRI (w)]; |
2072 | |
2766 | |
2073 | ++idleall; |
2767 | ++idleall; |
2074 | ev_start (EV_A_ (W)w, active); |
2768 | ev_start (EV_A_ (W)w, active); |
2075 | |
2769 | |
2076 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
2770 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
2077 | idles [ABSPRI (w)][active - 1] = w; |
2771 | idles [ABSPRI (w)][active - 1] = w; |
2078 | } |
2772 | } |
|
|
2773 | |
|
|
2774 | EV_FREQUENT_CHECK; |
2079 | } |
2775 | } |
2080 | |
2776 | |
2081 | void |
2777 | void |
2082 | ev_idle_stop (EV_P_ ev_idle *w) |
2778 | ev_idle_stop (EV_P_ ev_idle *w) |
2083 | { |
2779 | { |
2084 | clear_pending (EV_A_ (W)w); |
2780 | clear_pending (EV_A_ (W)w); |
2085 | if (expect_false (!ev_is_active (w))) |
2781 | if (expect_false (!ev_is_active (w))) |
2086 | return; |
2782 | return; |
2087 | |
2783 | |
|
|
2784 | EV_FREQUENT_CHECK; |
|
|
2785 | |
2088 | { |
2786 | { |
2089 | int active = ((W)w)->active; |
2787 | int active = ev_active (w); |
2090 | |
2788 | |
2091 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2789 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2092 | ((W)idles [ABSPRI (w)][active - 1])->active = active; |
2790 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
2093 | |
2791 | |
2094 | ev_stop (EV_A_ (W)w); |
2792 | ev_stop (EV_A_ (W)w); |
2095 | --idleall; |
2793 | --idleall; |
2096 | } |
2794 | } |
|
|
2795 | |
|
|
2796 | EV_FREQUENT_CHECK; |
2097 | } |
2797 | } |
2098 | #endif |
2798 | #endif |
2099 | |
2799 | |
2100 | void |
2800 | void |
2101 | ev_prepare_start (EV_P_ ev_prepare *w) |
2801 | ev_prepare_start (EV_P_ ev_prepare *w) |
2102 | { |
2802 | { |
2103 | if (expect_false (ev_is_active (w))) |
2803 | if (expect_false (ev_is_active (w))) |
2104 | return; |
2804 | return; |
|
|
2805 | |
|
|
2806 | EV_FREQUENT_CHECK; |
2105 | |
2807 | |
2106 | ev_start (EV_A_ (W)w, ++preparecnt); |
2808 | ev_start (EV_A_ (W)w, ++preparecnt); |
2107 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
2809 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
2108 | prepares [preparecnt - 1] = w; |
2810 | prepares [preparecnt - 1] = w; |
|
|
2811 | |
|
|
2812 | EV_FREQUENT_CHECK; |
2109 | } |
2813 | } |
2110 | |
2814 | |
2111 | void |
2815 | void |
2112 | ev_prepare_stop (EV_P_ ev_prepare *w) |
2816 | ev_prepare_stop (EV_P_ ev_prepare *w) |
2113 | { |
2817 | { |
2114 | clear_pending (EV_A_ (W)w); |
2818 | clear_pending (EV_A_ (W)w); |
2115 | if (expect_false (!ev_is_active (w))) |
2819 | if (expect_false (!ev_is_active (w))) |
2116 | return; |
2820 | return; |
2117 | |
2821 | |
|
|
2822 | EV_FREQUENT_CHECK; |
|
|
2823 | |
2118 | { |
2824 | { |
2119 | int active = ((W)w)->active; |
2825 | int active = ev_active (w); |
|
|
2826 | |
2120 | prepares [active - 1] = prepares [--preparecnt]; |
2827 | prepares [active - 1] = prepares [--preparecnt]; |
2121 | ((W)prepares [active - 1])->active = active; |
2828 | ev_active (prepares [active - 1]) = active; |
2122 | } |
2829 | } |
2123 | |
2830 | |
2124 | ev_stop (EV_A_ (W)w); |
2831 | ev_stop (EV_A_ (W)w); |
|
|
2832 | |
|
|
2833 | EV_FREQUENT_CHECK; |
2125 | } |
2834 | } |
2126 | |
2835 | |
2127 | void |
2836 | void |
2128 | ev_check_start (EV_P_ ev_check *w) |
2837 | ev_check_start (EV_P_ ev_check *w) |
2129 | { |
2838 | { |
2130 | if (expect_false (ev_is_active (w))) |
2839 | if (expect_false (ev_is_active (w))) |
2131 | return; |
2840 | return; |
|
|
2841 | |
|
|
2842 | EV_FREQUENT_CHECK; |
2132 | |
2843 | |
2133 | ev_start (EV_A_ (W)w, ++checkcnt); |
2844 | ev_start (EV_A_ (W)w, ++checkcnt); |
2134 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
2845 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
2135 | checks [checkcnt - 1] = w; |
2846 | checks [checkcnt - 1] = w; |
|
|
2847 | |
|
|
2848 | EV_FREQUENT_CHECK; |
2136 | } |
2849 | } |
2137 | |
2850 | |
2138 | void |
2851 | void |
2139 | ev_check_stop (EV_P_ ev_check *w) |
2852 | ev_check_stop (EV_P_ ev_check *w) |
2140 | { |
2853 | { |
2141 | clear_pending (EV_A_ (W)w); |
2854 | clear_pending (EV_A_ (W)w); |
2142 | if (expect_false (!ev_is_active (w))) |
2855 | if (expect_false (!ev_is_active (w))) |
2143 | return; |
2856 | return; |
2144 | |
2857 | |
|
|
2858 | EV_FREQUENT_CHECK; |
|
|
2859 | |
2145 | { |
2860 | { |
2146 | int active = ((W)w)->active; |
2861 | int active = ev_active (w); |
|
|
2862 | |
2147 | checks [active - 1] = checks [--checkcnt]; |
2863 | checks [active - 1] = checks [--checkcnt]; |
2148 | ((W)checks [active - 1])->active = active; |
2864 | ev_active (checks [active - 1]) = active; |
2149 | } |
2865 | } |
2150 | |
2866 | |
2151 | ev_stop (EV_A_ (W)w); |
2867 | ev_stop (EV_A_ (W)w); |
|
|
2868 | |
|
|
2869 | EV_FREQUENT_CHECK; |
2152 | } |
2870 | } |
2153 | |
2871 | |
2154 | #if EV_EMBED_ENABLE |
2872 | #if EV_EMBED_ENABLE |
2155 | void noinline |
2873 | void noinline |
2156 | ev_embed_sweep (EV_P_ ev_embed *w) |
2874 | ev_embed_sweep (EV_P_ ev_embed *w) |
2157 | { |
2875 | { |
2158 | ev_loop (w->loop, EVLOOP_NONBLOCK); |
2876 | ev_loop (w->other, EVLOOP_NONBLOCK); |
2159 | } |
2877 | } |
2160 | |
2878 | |
2161 | static void |
2879 | static void |
2162 | embed_cb (EV_P_ ev_io *io, int revents) |
2880 | embed_io_cb (EV_P_ ev_io *io, int revents) |
2163 | { |
2881 | { |
2164 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
2882 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
2165 | |
2883 | |
2166 | if (ev_cb (w)) |
2884 | if (ev_cb (w)) |
2167 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2885 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2168 | else |
2886 | else |
2169 | ev_embed_sweep (loop, w); |
2887 | ev_loop (w->other, EVLOOP_NONBLOCK); |
2170 | } |
2888 | } |
|
|
2889 | |
|
|
2890 | static void |
|
|
2891 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
|
|
2892 | { |
|
|
2893 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
|
|
2894 | |
|
|
2895 | { |
|
|
2896 | struct ev_loop *loop = w->other; |
|
|
2897 | |
|
|
2898 | while (fdchangecnt) |
|
|
2899 | { |
|
|
2900 | fd_reify (EV_A); |
|
|
2901 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
2902 | } |
|
|
2903 | } |
|
|
2904 | } |
|
|
2905 | |
|
|
2906 | static void |
|
|
2907 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
|
|
2908 | { |
|
|
2909 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
|
|
2910 | |
|
|
2911 | ev_embed_stop (EV_A_ w); |
|
|
2912 | |
|
|
2913 | { |
|
|
2914 | struct ev_loop *loop = w->other; |
|
|
2915 | |
|
|
2916 | ev_loop_fork (EV_A); |
|
|
2917 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
2918 | } |
|
|
2919 | |
|
|
2920 | ev_embed_start (EV_A_ w); |
|
|
2921 | } |
|
|
2922 | |
|
|
2923 | #if 0 |
|
|
2924 | static void |
|
|
2925 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
|
|
2926 | { |
|
|
2927 | ev_idle_stop (EV_A_ idle); |
|
|
2928 | } |
|
|
2929 | #endif |
2171 | |
2930 | |
2172 | void |
2931 | void |
2173 | ev_embed_start (EV_P_ ev_embed *w) |
2932 | ev_embed_start (EV_P_ ev_embed *w) |
2174 | { |
2933 | { |
2175 | if (expect_false (ev_is_active (w))) |
2934 | if (expect_false (ev_is_active (w))) |
2176 | return; |
2935 | return; |
2177 | |
2936 | |
2178 | { |
2937 | { |
2179 | struct ev_loop *loop = w->loop; |
2938 | struct ev_loop *loop = w->other; |
2180 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2939 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2181 | ev_io_init (&w->io, embed_cb, backend_fd, EV_READ); |
2940 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2182 | } |
2941 | } |
|
|
2942 | |
|
|
2943 | EV_FREQUENT_CHECK; |
2183 | |
2944 | |
2184 | ev_set_priority (&w->io, ev_priority (w)); |
2945 | ev_set_priority (&w->io, ev_priority (w)); |
2185 | ev_io_start (EV_A_ &w->io); |
2946 | ev_io_start (EV_A_ &w->io); |
2186 | |
2947 | |
|
|
2948 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
|
|
2949 | ev_set_priority (&w->prepare, EV_MINPRI); |
|
|
2950 | ev_prepare_start (EV_A_ &w->prepare); |
|
|
2951 | |
|
|
2952 | ev_fork_init (&w->fork, embed_fork_cb); |
|
|
2953 | ev_fork_start (EV_A_ &w->fork); |
|
|
2954 | |
|
|
2955 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
|
|
2956 | |
2187 | ev_start (EV_A_ (W)w, 1); |
2957 | ev_start (EV_A_ (W)w, 1); |
|
|
2958 | |
|
|
2959 | EV_FREQUENT_CHECK; |
2188 | } |
2960 | } |
2189 | |
2961 | |
2190 | void |
2962 | void |
2191 | ev_embed_stop (EV_P_ ev_embed *w) |
2963 | ev_embed_stop (EV_P_ ev_embed *w) |
2192 | { |
2964 | { |
2193 | clear_pending (EV_A_ (W)w); |
2965 | clear_pending (EV_A_ (W)w); |
2194 | if (expect_false (!ev_is_active (w))) |
2966 | if (expect_false (!ev_is_active (w))) |
2195 | return; |
2967 | return; |
2196 | |
2968 | |
|
|
2969 | EV_FREQUENT_CHECK; |
|
|
2970 | |
2197 | ev_io_stop (EV_A_ &w->io); |
2971 | ev_io_stop (EV_A_ &w->io); |
|
|
2972 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
2973 | ev_fork_stop (EV_A_ &w->fork); |
2198 | |
2974 | |
2199 | ev_stop (EV_A_ (W)w); |
2975 | EV_FREQUENT_CHECK; |
2200 | } |
2976 | } |
2201 | #endif |
2977 | #endif |
2202 | |
2978 | |
2203 | #if EV_FORK_ENABLE |
2979 | #if EV_FORK_ENABLE |
2204 | void |
2980 | void |
2205 | ev_fork_start (EV_P_ ev_fork *w) |
2981 | ev_fork_start (EV_P_ ev_fork *w) |
2206 | { |
2982 | { |
2207 | if (expect_false (ev_is_active (w))) |
2983 | if (expect_false (ev_is_active (w))) |
2208 | return; |
2984 | return; |
|
|
2985 | |
|
|
2986 | EV_FREQUENT_CHECK; |
2209 | |
2987 | |
2210 | ev_start (EV_A_ (W)w, ++forkcnt); |
2988 | ev_start (EV_A_ (W)w, ++forkcnt); |
2211 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
2989 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
2212 | forks [forkcnt - 1] = w; |
2990 | forks [forkcnt - 1] = w; |
|
|
2991 | |
|
|
2992 | EV_FREQUENT_CHECK; |
2213 | } |
2993 | } |
2214 | |
2994 | |
2215 | void |
2995 | void |
2216 | ev_fork_stop (EV_P_ ev_fork *w) |
2996 | ev_fork_stop (EV_P_ ev_fork *w) |
2217 | { |
2997 | { |
2218 | clear_pending (EV_A_ (W)w); |
2998 | clear_pending (EV_A_ (W)w); |
2219 | if (expect_false (!ev_is_active (w))) |
2999 | if (expect_false (!ev_is_active (w))) |
2220 | return; |
3000 | return; |
2221 | |
3001 | |
|
|
3002 | EV_FREQUENT_CHECK; |
|
|
3003 | |
2222 | { |
3004 | { |
2223 | int active = ((W)w)->active; |
3005 | int active = ev_active (w); |
|
|
3006 | |
2224 | forks [active - 1] = forks [--forkcnt]; |
3007 | forks [active - 1] = forks [--forkcnt]; |
2225 | ((W)forks [active - 1])->active = active; |
3008 | ev_active (forks [active - 1]) = active; |
2226 | } |
3009 | } |
2227 | |
3010 | |
2228 | ev_stop (EV_A_ (W)w); |
3011 | ev_stop (EV_A_ (W)w); |
|
|
3012 | |
|
|
3013 | EV_FREQUENT_CHECK; |
|
|
3014 | } |
|
|
3015 | #endif |
|
|
3016 | |
|
|
3017 | #if EV_ASYNC_ENABLE |
|
|
3018 | void |
|
|
3019 | ev_async_start (EV_P_ ev_async *w) |
|
|
3020 | { |
|
|
3021 | if (expect_false (ev_is_active (w))) |
|
|
3022 | return; |
|
|
3023 | |
|
|
3024 | evpipe_init (EV_A); |
|
|
3025 | |
|
|
3026 | EV_FREQUENT_CHECK; |
|
|
3027 | |
|
|
3028 | ev_start (EV_A_ (W)w, ++asynccnt); |
|
|
3029 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
|
|
3030 | asyncs [asynccnt - 1] = w; |
|
|
3031 | |
|
|
3032 | EV_FREQUENT_CHECK; |
|
|
3033 | } |
|
|
3034 | |
|
|
3035 | void |
|
|
3036 | ev_async_stop (EV_P_ ev_async *w) |
|
|
3037 | { |
|
|
3038 | clear_pending (EV_A_ (W)w); |
|
|
3039 | if (expect_false (!ev_is_active (w))) |
|
|
3040 | return; |
|
|
3041 | |
|
|
3042 | EV_FREQUENT_CHECK; |
|
|
3043 | |
|
|
3044 | { |
|
|
3045 | int active = ev_active (w); |
|
|
3046 | |
|
|
3047 | asyncs [active - 1] = asyncs [--asynccnt]; |
|
|
3048 | ev_active (asyncs [active - 1]) = active; |
|
|
3049 | } |
|
|
3050 | |
|
|
3051 | ev_stop (EV_A_ (W)w); |
|
|
3052 | |
|
|
3053 | EV_FREQUENT_CHECK; |
|
|
3054 | } |
|
|
3055 | |
|
|
3056 | void |
|
|
3057 | ev_async_send (EV_P_ ev_async *w) |
|
|
3058 | { |
|
|
3059 | w->sent = 1; |
|
|
3060 | evpipe_write (EV_A_ &gotasync); |
2229 | } |
3061 | } |
2230 | #endif |
3062 | #endif |
2231 | |
3063 | |
2232 | /*****************************************************************************/ |
3064 | /*****************************************************************************/ |
2233 | |
3065 | |
… | |
… | |
2243 | once_cb (EV_P_ struct ev_once *once, int revents) |
3075 | once_cb (EV_P_ struct ev_once *once, int revents) |
2244 | { |
3076 | { |
2245 | void (*cb)(int revents, void *arg) = once->cb; |
3077 | void (*cb)(int revents, void *arg) = once->cb; |
2246 | void *arg = once->arg; |
3078 | void *arg = once->arg; |
2247 | |
3079 | |
2248 | ev_io_stop (EV_A_ &once->io); |
3080 | ev_io_stop (EV_A_ &once->io); |
2249 | ev_timer_stop (EV_A_ &once->to); |
3081 | ev_timer_stop (EV_A_ &once->to); |
2250 | ev_free (once); |
3082 | ev_free (once); |
2251 | |
3083 | |
2252 | cb (revents, arg); |
3084 | cb (revents, arg); |
2253 | } |
3085 | } |
2254 | |
3086 | |
2255 | static void |
3087 | static void |
2256 | once_cb_io (EV_P_ ev_io *w, int revents) |
3088 | once_cb_io (EV_P_ ev_io *w, int revents) |
2257 | { |
3089 | { |
2258 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
3090 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)); |
|
|
3091 | |
|
|
3092 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to)); |
2259 | } |
3093 | } |
2260 | |
3094 | |
2261 | static void |
3095 | static void |
2262 | once_cb_to (EV_P_ ev_timer *w, int revents) |
3096 | once_cb_to (EV_P_ ev_timer *w, int revents) |
2263 | { |
3097 | { |
2264 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
3098 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)); |
|
|
3099 | |
|
|
3100 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
2265 | } |
3101 | } |
2266 | |
3102 | |
2267 | void |
3103 | void |
2268 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
3104 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
2269 | { |
3105 | { |
… | |
… | |
2291 | ev_timer_set (&once->to, timeout, 0.); |
3127 | ev_timer_set (&once->to, timeout, 0.); |
2292 | ev_timer_start (EV_A_ &once->to); |
3128 | ev_timer_start (EV_A_ &once->to); |
2293 | } |
3129 | } |
2294 | } |
3130 | } |
2295 | |
3131 | |
|
|
3132 | #if EV_MULTIPLICITY |
|
|
3133 | #include "ev_wrap.h" |
|
|
3134 | #endif |
|
|
3135 | |
2296 | #ifdef __cplusplus |
3136 | #ifdef __cplusplus |
2297 | } |
3137 | } |
2298 | #endif |
3138 | #endif |
2299 | |
3139 | |