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" |
41 | # endif |
50 | # endif |
42 | |
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 |
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62 | # elif !defined(EV_USE_CLOCK_SYSCALL) |
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63 | # define EV_USE_CLOCK_SYSCALL 0 |
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64 | # endif |
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65 | |
43 | # if HAVE_CLOCK_GETTIME |
66 | # if HAVE_CLOCK_GETTIME |
44 | # ifndef EV_USE_MONOTONIC |
67 | # ifndef EV_USE_MONOTONIC |
45 | # define EV_USE_MONOTONIC 1 |
68 | # define EV_USE_MONOTONIC 1 |
46 | # endif |
69 | # endif |
47 | # ifndef EV_USE_REALTIME |
70 | # ifndef EV_USE_REALTIME |
48 | # define EV_USE_REALTIME 1 |
71 | # define EV_USE_REALTIME 0 |
49 | # endif |
72 | # endif |
50 | # else |
73 | # else |
51 | # ifndef EV_USE_MONOTONIC |
74 | # ifndef EV_USE_MONOTONIC |
52 | # define EV_USE_MONOTONIC 0 |
75 | # define EV_USE_MONOTONIC 0 |
53 | # endif |
76 | # endif |
54 | # ifndef EV_USE_REALTIME |
77 | # ifndef EV_USE_REALTIME |
55 | # define EV_USE_REALTIME 0 |
78 | # define EV_USE_REALTIME 0 |
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79 | # endif |
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80 | # endif |
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81 | |
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82 | # ifndef EV_USE_NANOSLEEP |
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83 | # if HAVE_NANOSLEEP |
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84 | # define EV_USE_NANOSLEEP 1 |
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85 | # else |
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86 | # define EV_USE_NANOSLEEP 0 |
56 | # endif |
87 | # endif |
57 | # endif |
88 | # endif |
58 | |
89 | |
59 | # ifndef EV_USE_SELECT |
90 | # ifndef EV_USE_SELECT |
60 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
91 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
… | |
… | |
102 | # else |
133 | # else |
103 | # define EV_USE_INOTIFY 0 |
134 | # define EV_USE_INOTIFY 0 |
104 | # endif |
135 | # endif |
105 | # endif |
136 | # endif |
106 | |
137 | |
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138 | # ifndef EV_USE_EVENTFD |
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139 | # if HAVE_EVENTFD |
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140 | # define EV_USE_EVENTFD 1 |
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141 | # else |
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142 | # define EV_USE_EVENTFD 0 |
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143 | # endif |
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144 | # endif |
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145 | |
107 | #endif |
146 | #endif |
108 | |
147 | |
109 | #include <math.h> |
148 | #include <math.h> |
110 | #include <stdlib.h> |
149 | #include <stdlib.h> |
111 | #include <fcntl.h> |
150 | #include <fcntl.h> |
… | |
… | |
129 | #ifndef _WIN32 |
168 | #ifndef _WIN32 |
130 | # include <sys/time.h> |
169 | # include <sys/time.h> |
131 | # include <sys/wait.h> |
170 | # include <sys/wait.h> |
132 | # include <unistd.h> |
171 | # include <unistd.h> |
133 | #else |
172 | #else |
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173 | # include <io.h> |
134 | # define WIN32_LEAN_AND_MEAN |
174 | # define WIN32_LEAN_AND_MEAN |
135 | # include <windows.h> |
175 | # include <windows.h> |
136 | # ifndef EV_SELECT_IS_WINSOCKET |
176 | # ifndef EV_SELECT_IS_WINSOCKET |
137 | # define EV_SELECT_IS_WINSOCKET 1 |
177 | # define EV_SELECT_IS_WINSOCKET 1 |
138 | # endif |
178 | # endif |
139 | #endif |
179 | #endif |
140 | |
180 | |
141 | /**/ |
181 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
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182 | |
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183 | #ifndef EV_USE_CLOCK_SYSCALL |
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184 | # if __linux && __GLIBC__ >= 2 |
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185 | # define EV_USE_CLOCK_SYSCALL 1 |
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186 | # else |
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187 | # define EV_USE_CLOCK_SYSCALL 0 |
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188 | # endif |
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189 | #endif |
142 | |
190 | |
143 | #ifndef EV_USE_MONOTONIC |
191 | #ifndef EV_USE_MONOTONIC |
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192 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
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193 | # define EV_USE_MONOTONIC 1 |
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194 | # else |
144 | # define EV_USE_MONOTONIC 0 |
195 | # define EV_USE_MONOTONIC 0 |
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196 | # endif |
145 | #endif |
197 | #endif |
146 | |
198 | |
147 | #ifndef EV_USE_REALTIME |
199 | #ifndef EV_USE_REALTIME |
148 | # define EV_USE_REALTIME 0 |
200 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
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201 | #endif |
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202 | |
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203 | #ifndef EV_USE_NANOSLEEP |
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204 | # if _POSIX_C_SOURCE >= 199309L |
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205 | # define EV_USE_NANOSLEEP 1 |
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206 | # else |
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207 | # define EV_USE_NANOSLEEP 0 |
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208 | # endif |
149 | #endif |
209 | #endif |
150 | |
210 | |
151 | #ifndef EV_USE_SELECT |
211 | #ifndef EV_USE_SELECT |
152 | # define EV_USE_SELECT 1 |
212 | # define EV_USE_SELECT 1 |
153 | #endif |
213 | #endif |
… | |
… | |
159 | # define EV_USE_POLL 1 |
219 | # define EV_USE_POLL 1 |
160 | # endif |
220 | # endif |
161 | #endif |
221 | #endif |
162 | |
222 | |
163 | #ifndef EV_USE_EPOLL |
223 | #ifndef EV_USE_EPOLL |
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224 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
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225 | # define EV_USE_EPOLL 1 |
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226 | # else |
164 | # define EV_USE_EPOLL 0 |
227 | # define EV_USE_EPOLL 0 |
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228 | # endif |
165 | #endif |
229 | #endif |
166 | |
230 | |
167 | #ifndef EV_USE_KQUEUE |
231 | #ifndef EV_USE_KQUEUE |
168 | # define EV_USE_KQUEUE 0 |
232 | # define EV_USE_KQUEUE 0 |
169 | #endif |
233 | #endif |
… | |
… | |
171 | #ifndef EV_USE_PORT |
235 | #ifndef EV_USE_PORT |
172 | # define EV_USE_PORT 0 |
236 | # define EV_USE_PORT 0 |
173 | #endif |
237 | #endif |
174 | |
238 | |
175 | #ifndef EV_USE_INOTIFY |
239 | #ifndef EV_USE_INOTIFY |
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240 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
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241 | # define EV_USE_INOTIFY 1 |
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242 | # else |
176 | # define EV_USE_INOTIFY 0 |
243 | # define EV_USE_INOTIFY 0 |
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244 | # endif |
177 | #endif |
245 | #endif |
178 | |
246 | |
179 | #ifndef EV_PID_HASHSIZE |
247 | #ifndef EV_PID_HASHSIZE |
180 | # if EV_MINIMAL |
248 | # if EV_MINIMAL |
181 | # define EV_PID_HASHSIZE 1 |
249 | # define EV_PID_HASHSIZE 1 |
… | |
… | |
190 | # else |
258 | # else |
191 | # define EV_INOTIFY_HASHSIZE 16 |
259 | # define EV_INOTIFY_HASHSIZE 16 |
192 | # endif |
260 | # endif |
193 | #endif |
261 | #endif |
194 | |
262 | |
195 | /**/ |
263 | #ifndef EV_USE_EVENTFD |
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264 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
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265 | # define EV_USE_EVENTFD 1 |
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266 | # else |
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267 | # define EV_USE_EVENTFD 0 |
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268 | # endif |
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269 | #endif |
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270 | |
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271 | #if 0 /* debugging */ |
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272 | # define EV_VERIFY 3 |
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273 | # define EV_USE_4HEAP 1 |
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274 | # define EV_HEAP_CACHE_AT 1 |
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275 | #endif |
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276 | |
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277 | #ifndef EV_VERIFY |
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278 | # define EV_VERIFY !EV_MINIMAL |
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279 | #endif |
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280 | |
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281 | #ifndef EV_USE_4HEAP |
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282 | # define EV_USE_4HEAP !EV_MINIMAL |
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283 | #endif |
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284 | |
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285 | #ifndef EV_HEAP_CACHE_AT |
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286 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
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287 | #endif |
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288 | |
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289 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
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290 | /* which makes programs even slower. might work on other unices, too. */ |
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291 | #if EV_USE_CLOCK_SYSCALL |
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292 | # include <syscall.h> |
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293 | # ifdef SYS_clock_gettime |
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294 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
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295 | # undef EV_USE_MONOTONIC |
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296 | # define EV_USE_MONOTONIC 1 |
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297 | # else |
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298 | # undef EV_USE_CLOCK_SYSCALL |
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299 | # define EV_USE_CLOCK_SYSCALL 0 |
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300 | # endif |
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301 | #endif |
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302 | |
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303 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
196 | |
304 | |
197 | #ifndef CLOCK_MONOTONIC |
305 | #ifndef CLOCK_MONOTONIC |
198 | # undef EV_USE_MONOTONIC |
306 | # undef EV_USE_MONOTONIC |
199 | # define EV_USE_MONOTONIC 0 |
307 | # define EV_USE_MONOTONIC 0 |
200 | #endif |
308 | #endif |
… | |
… | |
202 | #ifndef CLOCK_REALTIME |
310 | #ifndef CLOCK_REALTIME |
203 | # undef EV_USE_REALTIME |
311 | # undef EV_USE_REALTIME |
204 | # define EV_USE_REALTIME 0 |
312 | # define EV_USE_REALTIME 0 |
205 | #endif |
313 | #endif |
206 | |
314 | |
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315 | #if !EV_STAT_ENABLE |
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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 | |
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320 | #if !EV_USE_NANOSLEEP |
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321 | # ifndef _WIN32 |
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322 | # include <sys/select.h> |
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323 | # endif |
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324 | #endif |
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325 | |
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326 | #if EV_USE_INOTIFY |
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327 | # include <sys/utsname.h> |
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328 | # include <sys/statfs.h> |
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329 | # include <sys/inotify.h> |
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330 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
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331 | # ifndef IN_DONT_FOLLOW |
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332 | # undef EV_USE_INOTIFY |
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333 | # define EV_USE_INOTIFY 0 |
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334 | # endif |
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335 | #endif |
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336 | |
207 | #if EV_SELECT_IS_WINSOCKET |
337 | #if EV_SELECT_IS_WINSOCKET |
208 | # include <winsock.h> |
338 | # include <winsock.h> |
209 | #endif |
339 | #endif |
210 | |
340 | |
211 | #if !EV_STAT_ENABLE |
341 | #if EV_USE_EVENTFD |
212 | # define EV_USE_INOTIFY 0 |
342 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
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343 | # include <stdint.h> |
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344 | # ifdef __cplusplus |
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345 | extern "C" { |
213 | #endif |
346 | # endif |
214 | |
347 | int eventfd (unsigned int initval, int flags); |
215 | #if EV_USE_INOTIFY |
348 | # ifdef __cplusplus |
216 | # include <sys/inotify.h> |
349 | } |
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350 | # endif |
217 | #endif |
351 | #endif |
218 | |
352 | |
219 | /**/ |
353 | /**/ |
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354 | |
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355 | #if EV_VERIFY >= 3 |
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356 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
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357 | #else |
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358 | # define EV_FREQUENT_CHECK do { } while (0) |
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359 | #endif |
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360 | |
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361 | /* |
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362 | * This is used to avoid floating point rounding problems. |
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363 | * It is added to ev_rt_now when scheduling periodics |
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364 | * to ensure progress, time-wise, even when rounding |
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365 | * errors are against us. |
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366 | * This value is good at least till the year 4000. |
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367 | * Better solutions welcome. |
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368 | */ |
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369 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
220 | |
370 | |
221 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
371 | #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) */ |
372 | #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 */ |
373 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
224 | |
374 | |
225 | #if __GNUC__ >= 3 |
375 | #if __GNUC__ >= 4 |
226 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
376 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
227 | # define noinline __attribute__ ((noinline)) |
377 | # define noinline __attribute__ ((noinline)) |
228 | #else |
378 | #else |
229 | # define expect(expr,value) (expr) |
379 | # define expect(expr,value) (expr) |
230 | # define noinline |
380 | # define noinline |
231 | # if __STDC_VERSION__ < 199901L |
381 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
232 | # define inline |
382 | # define inline |
233 | # endif |
383 | # endif |
234 | #endif |
384 | #endif |
235 | |
385 | |
236 | #define expect_false(expr) expect ((expr) != 0, 0) |
386 | #define expect_false(expr) expect ((expr) != 0, 0) |
… | |
… | |
241 | # define inline_speed static noinline |
391 | # define inline_speed static noinline |
242 | #else |
392 | #else |
243 | # define inline_speed static inline |
393 | # define inline_speed static inline |
244 | #endif |
394 | #endif |
245 | |
395 | |
246 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
396 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
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397 | |
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398 | #if EV_MINPRI == EV_MAXPRI |
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399 | # define ABSPRI(w) (((W)w), 0) |
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400 | #else |
247 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
401 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
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402 | #endif |
248 | |
403 | |
249 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
404 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
250 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
405 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
251 | |
406 | |
252 | typedef ev_watcher *W; |
407 | typedef ev_watcher *W; |
253 | typedef ev_watcher_list *WL; |
408 | typedef ev_watcher_list *WL; |
254 | typedef ev_watcher_time *WT; |
409 | typedef ev_watcher_time *WT; |
255 | |
410 | |
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411 | #define ev_active(w) ((W)(w))->active |
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412 | #define ev_at(w) ((WT)(w))->at |
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413 | |
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414 | #if EV_USE_REALTIME |
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415 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
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416 | /* giving it a reasonably high chance of working on typical architetcures */ |
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417 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
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418 | #endif |
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419 | |
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420 | #if EV_USE_MONOTONIC |
256 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
421 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
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422 | #endif |
257 | |
423 | |
258 | #ifdef _WIN32 |
424 | #ifdef _WIN32 |
259 | # include "ev_win32.c" |
425 | # include "ev_win32.c" |
260 | #endif |
426 | #endif |
261 | |
427 | |
… | |
… | |
268 | { |
434 | { |
269 | syserr_cb = cb; |
435 | syserr_cb = cb; |
270 | } |
436 | } |
271 | |
437 | |
272 | static void noinline |
438 | static void noinline |
273 | syserr (const char *msg) |
439 | ev_syserr (const char *msg) |
274 | { |
440 | { |
275 | if (!msg) |
441 | if (!msg) |
276 | msg = "(libev) system error"; |
442 | msg = "(libev) system error"; |
277 | |
443 | |
278 | if (syserr_cb) |
444 | if (syserr_cb) |
… | |
… | |
282 | perror (msg); |
448 | perror (msg); |
283 | abort (); |
449 | abort (); |
284 | } |
450 | } |
285 | } |
451 | } |
286 | |
452 | |
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453 | static void * |
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454 | ev_realloc_emul (void *ptr, long size) |
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455 | { |
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456 | /* some systems, notably openbsd and darwin, fail to properly |
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457 | * implement realloc (x, 0) (as required by both ansi c-98 and |
|
|
458 | * the single unix specification, so work around them here. |
|
|
459 | */ |
|
|
460 | |
|
|
461 | if (size) |
|
|
462 | return realloc (ptr, size); |
|
|
463 | |
|
|
464 | free (ptr); |
|
|
465 | return 0; |
|
|
466 | } |
|
|
467 | |
287 | static void *(*alloc)(void *ptr, long size); |
468 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
288 | |
469 | |
289 | void |
470 | void |
290 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
471 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
291 | { |
472 | { |
292 | alloc = cb; |
473 | alloc = cb; |
293 | } |
474 | } |
294 | |
475 | |
295 | inline_speed void * |
476 | inline_speed void * |
296 | ev_realloc (void *ptr, long size) |
477 | ev_realloc (void *ptr, long size) |
297 | { |
478 | { |
298 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
479 | ptr = alloc (ptr, size); |
299 | |
480 | |
300 | if (!ptr && size) |
481 | if (!ptr && size) |
301 | { |
482 | { |
302 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
483 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
303 | abort (); |
484 | abort (); |
… | |
… | |
309 | #define ev_malloc(size) ev_realloc (0, (size)) |
490 | #define ev_malloc(size) ev_realloc (0, (size)) |
310 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
491 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
311 | |
492 | |
312 | /*****************************************************************************/ |
493 | /*****************************************************************************/ |
313 | |
494 | |
|
|
495 | /* file descriptor info structure */ |
314 | typedef struct |
496 | typedef struct |
315 | { |
497 | { |
316 | WL head; |
498 | WL head; |
317 | unsigned char events; |
499 | unsigned char events; /* the events watched for */ |
|
|
500 | unsigned char reify; /* flag set when this ANFD needs reification */ |
|
|
501 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
318 | unsigned char reify; |
502 | unsigned char unused; |
|
|
503 | #if EV_USE_EPOLL |
|
|
504 | unsigned int egen; /* generation counter to counter epoll bugs */ |
|
|
505 | #endif |
319 | #if EV_SELECT_IS_WINSOCKET |
506 | #if EV_SELECT_IS_WINSOCKET |
320 | SOCKET handle; |
507 | SOCKET handle; |
321 | #endif |
508 | #endif |
322 | } ANFD; |
509 | } ANFD; |
323 | |
510 | |
|
|
511 | /* stores the pending event set for a given watcher */ |
324 | typedef struct |
512 | typedef struct |
325 | { |
513 | { |
326 | W w; |
514 | W w; |
327 | int events; |
515 | int events; /* the pending event set for the given watcher */ |
328 | } ANPENDING; |
516 | } ANPENDING; |
329 | |
517 | |
330 | #if EV_USE_INOTIFY |
518 | #if EV_USE_INOTIFY |
|
|
519 | /* hash table entry per inotify-id */ |
331 | typedef struct |
520 | typedef struct |
332 | { |
521 | { |
333 | WL head; |
522 | WL head; |
334 | } ANFS; |
523 | } ANFS; |
|
|
524 | #endif |
|
|
525 | |
|
|
526 | /* Heap Entry */ |
|
|
527 | #if EV_HEAP_CACHE_AT |
|
|
528 | /* a heap element */ |
|
|
529 | typedef struct { |
|
|
530 | ev_tstamp at; |
|
|
531 | WT w; |
|
|
532 | } ANHE; |
|
|
533 | |
|
|
534 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
|
|
535 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
|
|
536 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
|
|
537 | #else |
|
|
538 | /* a heap element */ |
|
|
539 | typedef WT ANHE; |
|
|
540 | |
|
|
541 | #define ANHE_w(he) (he) |
|
|
542 | #define ANHE_at(he) (he)->at |
|
|
543 | #define ANHE_at_cache(he) |
335 | #endif |
544 | #endif |
336 | |
545 | |
337 | #if EV_MULTIPLICITY |
546 | #if EV_MULTIPLICITY |
338 | |
547 | |
339 | struct ev_loop |
548 | struct ev_loop |
… | |
… | |
358 | |
567 | |
359 | static int ev_default_loop_ptr; |
568 | static int ev_default_loop_ptr; |
360 | |
569 | |
361 | #endif |
570 | #endif |
362 | |
571 | |
|
|
572 | #if EV_MINIMAL < 2 |
|
|
573 | # define EV_SUSPEND_CB if (expect_false (suspend_cb)) suspend_cb (EV_A) |
|
|
574 | # define EV_RESUME_CB if (expect_false (resume_cb )) resume_cb (EV_A) |
|
|
575 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
|
|
576 | #else |
|
|
577 | # define EV_SUSPEND_CB (void)0 |
|
|
578 | # define EV_RESUME_CB (void)0 |
|
|
579 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
|
|
580 | #endif |
|
|
581 | |
363 | /*****************************************************************************/ |
582 | /*****************************************************************************/ |
364 | |
583 | |
|
|
584 | #ifndef EV_HAVE_EV_TIME |
365 | ev_tstamp |
585 | ev_tstamp |
366 | ev_time (void) |
586 | ev_time (void) |
367 | { |
587 | { |
368 | #if EV_USE_REALTIME |
588 | #if EV_USE_REALTIME |
|
|
589 | if (expect_true (have_realtime)) |
|
|
590 | { |
369 | struct timespec ts; |
591 | struct timespec ts; |
370 | clock_gettime (CLOCK_REALTIME, &ts); |
592 | clock_gettime (CLOCK_REALTIME, &ts); |
371 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
593 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
372 | #else |
594 | } |
|
|
595 | #endif |
|
|
596 | |
373 | struct timeval tv; |
597 | struct timeval tv; |
374 | gettimeofday (&tv, 0); |
598 | gettimeofday (&tv, 0); |
375 | return tv.tv_sec + tv.tv_usec * 1e-6; |
599 | return tv.tv_sec + tv.tv_usec * 1e-6; |
376 | #endif |
|
|
377 | } |
600 | } |
|
|
601 | #endif |
378 | |
602 | |
379 | ev_tstamp inline_size |
603 | inline_size ev_tstamp |
380 | get_clock (void) |
604 | get_clock (void) |
381 | { |
605 | { |
382 | #if EV_USE_MONOTONIC |
606 | #if EV_USE_MONOTONIC |
383 | if (expect_true (have_monotonic)) |
607 | if (expect_true (have_monotonic)) |
384 | { |
608 | { |
… | |
… | |
397 | { |
621 | { |
398 | return ev_rt_now; |
622 | return ev_rt_now; |
399 | } |
623 | } |
400 | #endif |
624 | #endif |
401 | |
625 | |
402 | int inline_size |
626 | void |
|
|
627 | ev_sleep (ev_tstamp delay) |
|
|
628 | { |
|
|
629 | if (delay > 0.) |
|
|
630 | { |
|
|
631 | #if EV_USE_NANOSLEEP |
|
|
632 | struct timespec ts; |
|
|
633 | |
|
|
634 | ts.tv_sec = (time_t)delay; |
|
|
635 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
636 | |
|
|
637 | nanosleep (&ts, 0); |
|
|
638 | #elif defined(_WIN32) |
|
|
639 | Sleep ((unsigned long)(delay * 1e3)); |
|
|
640 | #else |
|
|
641 | struct timeval tv; |
|
|
642 | |
|
|
643 | tv.tv_sec = (time_t)delay; |
|
|
644 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
|
|
645 | |
|
|
646 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
|
|
647 | /* somehting not guaranteed by newer posix versions, but guaranteed */ |
|
|
648 | /* by older ones */ |
|
|
649 | select (0, 0, 0, 0, &tv); |
|
|
650 | #endif |
|
|
651 | } |
|
|
652 | } |
|
|
653 | |
|
|
654 | /*****************************************************************************/ |
|
|
655 | |
|
|
656 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
|
|
657 | |
|
|
658 | /* find a suitable new size for the given array, */ |
|
|
659 | /* hopefully by rounding to a ncie-to-malloc size */ |
|
|
660 | inline_size int |
403 | array_nextsize (int elem, int cur, int cnt) |
661 | array_nextsize (int elem, int cur, int cnt) |
404 | { |
662 | { |
405 | int ncur = cur + 1; |
663 | int ncur = cur + 1; |
406 | |
664 | |
407 | do |
665 | do |
408 | ncur <<= 1; |
666 | ncur <<= 1; |
409 | while (cnt > ncur); |
667 | while (cnt > ncur); |
410 | |
668 | |
411 | /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */ |
669 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
412 | if (elem * ncur > 4096) |
670 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
413 | { |
671 | { |
414 | ncur *= elem; |
672 | ncur *= elem; |
415 | ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095; |
673 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
416 | ncur = ncur - sizeof (void *) * 4; |
674 | ncur = ncur - sizeof (void *) * 4; |
417 | ncur /= elem; |
675 | ncur /= elem; |
418 | } |
676 | } |
419 | |
677 | |
420 | return ncur; |
678 | return ncur; |
… | |
… | |
424 | array_realloc (int elem, void *base, int *cur, int cnt) |
682 | array_realloc (int elem, void *base, int *cur, int cnt) |
425 | { |
683 | { |
426 | *cur = array_nextsize (elem, *cur, cnt); |
684 | *cur = array_nextsize (elem, *cur, cnt); |
427 | return ev_realloc (base, elem * *cur); |
685 | return ev_realloc (base, elem * *cur); |
428 | } |
686 | } |
|
|
687 | |
|
|
688 | #define array_init_zero(base,count) \ |
|
|
689 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
429 | |
690 | |
430 | #define array_needsize(type,base,cur,cnt,init) \ |
691 | #define array_needsize(type,base,cur,cnt,init) \ |
431 | if (expect_false ((cnt) > (cur))) \ |
692 | if (expect_false ((cnt) > (cur))) \ |
432 | { \ |
693 | { \ |
433 | int ocur_ = (cur); \ |
694 | int ocur_ = (cur); \ |
… | |
… | |
445 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
706 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
446 | } |
707 | } |
447 | #endif |
708 | #endif |
448 | |
709 | |
449 | #define array_free(stem, idx) \ |
710 | #define array_free(stem, idx) \ |
450 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
711 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
451 | |
712 | |
452 | /*****************************************************************************/ |
713 | /*****************************************************************************/ |
|
|
714 | |
|
|
715 | /* dummy callback for pending events */ |
|
|
716 | static void noinline |
|
|
717 | pendingcb (EV_P_ ev_prepare *w, int revents) |
|
|
718 | { |
|
|
719 | } |
453 | |
720 | |
454 | void noinline |
721 | void noinline |
455 | ev_feed_event (EV_P_ void *w, int revents) |
722 | ev_feed_event (EV_P_ void *w, int revents) |
456 | { |
723 | { |
457 | W w_ = (W)w; |
724 | W w_ = (W)w; |
… | |
… | |
466 | pendings [pri][w_->pending - 1].w = w_; |
733 | pendings [pri][w_->pending - 1].w = w_; |
467 | pendings [pri][w_->pending - 1].events = revents; |
734 | pendings [pri][w_->pending - 1].events = revents; |
468 | } |
735 | } |
469 | } |
736 | } |
470 | |
737 | |
471 | void inline_size |
738 | inline_speed void |
|
|
739 | feed_reverse (EV_P_ W w) |
|
|
740 | { |
|
|
741 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
|
|
742 | rfeeds [rfeedcnt++] = w; |
|
|
743 | } |
|
|
744 | |
|
|
745 | inline_size void |
|
|
746 | feed_reverse_done (EV_P_ int revents) |
|
|
747 | { |
|
|
748 | do |
|
|
749 | ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents); |
|
|
750 | while (rfeedcnt); |
|
|
751 | } |
|
|
752 | |
|
|
753 | inline_speed void |
472 | queue_events (EV_P_ W *events, int eventcnt, int type) |
754 | queue_events (EV_P_ W *events, int eventcnt, int type) |
473 | { |
755 | { |
474 | int i; |
756 | int i; |
475 | |
757 | |
476 | for (i = 0; i < eventcnt; ++i) |
758 | for (i = 0; i < eventcnt; ++i) |
477 | ev_feed_event (EV_A_ events [i], type); |
759 | ev_feed_event (EV_A_ events [i], type); |
478 | } |
760 | } |
479 | |
761 | |
480 | /*****************************************************************************/ |
762 | /*****************************************************************************/ |
481 | |
763 | |
482 | void inline_size |
764 | inline_speed void |
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 | |
|
|
495 | void inline_speed |
|
|
496 | fd_event (EV_P_ int fd, int revents) |
765 | fd_event (EV_P_ int fd, int revents) |
497 | { |
766 | { |
498 | ANFD *anfd = anfds + fd; |
767 | ANFD *anfd = anfds + fd; |
499 | ev_io *w; |
768 | ev_io *w; |
500 | |
769 | |
… | |
… | |
512 | { |
781 | { |
513 | if (fd >= 0 && fd < anfdmax) |
782 | if (fd >= 0 && fd < anfdmax) |
514 | fd_event (EV_A_ fd, revents); |
783 | fd_event (EV_A_ fd, revents); |
515 | } |
784 | } |
516 | |
785 | |
517 | void inline_size |
786 | /* make sure the external fd watch events are in-sync */ |
|
|
787 | /* with the kernel/libev internal state */ |
|
|
788 | inline_size void |
518 | fd_reify (EV_P) |
789 | fd_reify (EV_P) |
519 | { |
790 | { |
520 | int i; |
791 | int i; |
521 | |
792 | |
522 | for (i = 0; i < fdchangecnt; ++i) |
793 | for (i = 0; i < fdchangecnt; ++i) |
523 | { |
794 | { |
524 | int fd = fdchanges [i]; |
795 | int fd = fdchanges [i]; |
525 | ANFD *anfd = anfds + fd; |
796 | ANFD *anfd = anfds + fd; |
526 | ev_io *w; |
797 | ev_io *w; |
527 | |
798 | |
528 | int events = 0; |
799 | unsigned char events = 0; |
529 | |
800 | |
530 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
801 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
531 | events |= w->events; |
802 | events |= (unsigned char)w->events; |
532 | |
803 | |
533 | #if EV_SELECT_IS_WINSOCKET |
804 | #if EV_SELECT_IS_WINSOCKET |
534 | if (events) |
805 | if (events) |
535 | { |
806 | { |
536 | unsigned long argp; |
807 | unsigned long arg; |
|
|
808 | #ifdef EV_FD_TO_WIN32_HANDLE |
|
|
809 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
810 | #else |
537 | anfd->handle = _get_osfhandle (fd); |
811 | anfd->handle = _get_osfhandle (fd); |
|
|
812 | #endif |
538 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
813 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
539 | } |
814 | } |
540 | #endif |
815 | #endif |
541 | |
816 | |
|
|
817 | { |
|
|
818 | unsigned char o_events = anfd->events; |
|
|
819 | unsigned char o_reify = anfd->reify; |
|
|
820 | |
542 | anfd->reify = 0; |
821 | anfd->reify = 0; |
543 | |
|
|
544 | backend_modify (EV_A_ fd, anfd->events, events); |
|
|
545 | anfd->events = events; |
822 | anfd->events = events; |
|
|
823 | |
|
|
824 | if (o_events != events || o_reify & EV__IOFDSET) |
|
|
825 | backend_modify (EV_A_ fd, o_events, events); |
|
|
826 | } |
546 | } |
827 | } |
547 | |
828 | |
548 | fdchangecnt = 0; |
829 | fdchangecnt = 0; |
549 | } |
830 | } |
550 | |
831 | |
551 | void inline_size |
832 | /* something about the given fd changed */ |
|
|
833 | inline_size void |
552 | fd_change (EV_P_ int fd) |
834 | fd_change (EV_P_ int fd, int flags) |
553 | { |
835 | { |
554 | if (expect_false (anfds [fd].reify)) |
836 | unsigned char reify = anfds [fd].reify; |
555 | return; |
|
|
556 | |
|
|
557 | anfds [fd].reify = 1; |
837 | anfds [fd].reify |= flags; |
558 | |
838 | |
|
|
839 | if (expect_true (!reify)) |
|
|
840 | { |
559 | ++fdchangecnt; |
841 | ++fdchangecnt; |
560 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
842 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
561 | fdchanges [fdchangecnt - 1] = fd; |
843 | fdchanges [fdchangecnt - 1] = fd; |
|
|
844 | } |
562 | } |
845 | } |
563 | |
846 | |
564 | void inline_speed |
847 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
|
|
848 | inline_speed void |
565 | fd_kill (EV_P_ int fd) |
849 | fd_kill (EV_P_ int fd) |
566 | { |
850 | { |
567 | ev_io *w; |
851 | ev_io *w; |
568 | |
852 | |
569 | while ((w = (ev_io *)anfds [fd].head)) |
853 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
571 | ev_io_stop (EV_A_ w); |
855 | ev_io_stop (EV_A_ w); |
572 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
856 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
573 | } |
857 | } |
574 | } |
858 | } |
575 | |
859 | |
576 | int inline_size |
860 | /* check whether the given fd is atcually valid, for error recovery */ |
|
|
861 | inline_size int |
577 | fd_valid (int fd) |
862 | fd_valid (int fd) |
578 | { |
863 | { |
579 | #ifdef _WIN32 |
864 | #ifdef _WIN32 |
580 | return _get_osfhandle (fd) != -1; |
865 | return _get_osfhandle (fd) != -1; |
581 | #else |
866 | #else |
… | |
… | |
589 | { |
874 | { |
590 | int fd; |
875 | int fd; |
591 | |
876 | |
592 | for (fd = 0; fd < anfdmax; ++fd) |
877 | for (fd = 0; fd < anfdmax; ++fd) |
593 | if (anfds [fd].events) |
878 | if (anfds [fd].events) |
594 | if (!fd_valid (fd) == -1 && errno == EBADF) |
879 | if (!fd_valid (fd) && errno == EBADF) |
595 | fd_kill (EV_A_ fd); |
880 | fd_kill (EV_A_ fd); |
596 | } |
881 | } |
597 | |
882 | |
598 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
883 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
599 | static void noinline |
884 | static void noinline |
… | |
… | |
617 | |
902 | |
618 | for (fd = 0; fd < anfdmax; ++fd) |
903 | for (fd = 0; fd < anfdmax; ++fd) |
619 | if (anfds [fd].events) |
904 | if (anfds [fd].events) |
620 | { |
905 | { |
621 | anfds [fd].events = 0; |
906 | anfds [fd].events = 0; |
|
|
907 | anfds [fd].emask = 0; |
622 | fd_change (EV_A_ fd); |
908 | fd_change (EV_A_ fd, EV__IOFDSET | 1); |
623 | } |
909 | } |
624 | } |
910 | } |
625 | |
911 | |
626 | /*****************************************************************************/ |
912 | /*****************************************************************************/ |
627 | |
913 | |
628 | void inline_speed |
914 | /* |
629 | upheap (WT *heap, int k) |
915 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
630 | { |
916 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
631 | WT w = heap [k]; |
917 | * the branching factor of the d-tree. |
|
|
918 | */ |
632 | |
919 | |
633 | while (k && heap [k >> 1]->at > w->at) |
920 | /* |
634 | { |
921 | * at the moment we allow libev the luxury of two heaps, |
635 | heap [k] = heap [k >> 1]; |
922 | * a small-code-size 2-heap one and a ~1.5kb larger 4-heap |
636 | ((W)heap [k])->active = k + 1; |
923 | * which is more cache-efficient. |
637 | k >>= 1; |
924 | * the difference is about 5% with 50000+ watchers. |
638 | } |
925 | */ |
|
|
926 | #if EV_USE_4HEAP |
639 | |
927 | |
640 | heap [k] = w; |
928 | #define DHEAP 4 |
641 | ((W)heap [k])->active = k + 1; |
929 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
|
|
930 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
|
|
931 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
642 | |
932 | |
643 | } |
933 | /* away from the root */ |
644 | |
934 | inline_speed void |
645 | void inline_speed |
|
|
646 | downheap (WT *heap, int N, int k) |
935 | downheap (ANHE *heap, int N, int k) |
647 | { |
936 | { |
648 | WT w = heap [k]; |
937 | ANHE he = heap [k]; |
|
|
938 | ANHE *E = heap + N + HEAP0; |
649 | |
939 | |
650 | while (k < (N >> 1)) |
940 | for (;;) |
651 | { |
941 | { |
652 | int j = k << 1; |
942 | ev_tstamp minat; |
|
|
943 | ANHE *minpos; |
|
|
944 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
653 | |
945 | |
654 | if (j + 1 < N && heap [j]->at > heap [j + 1]->at) |
946 | /* find minimum child */ |
|
|
947 | if (expect_true (pos + DHEAP - 1 < E)) |
655 | ++j; |
948 | { |
656 | |
949 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
657 | if (w->at <= heap [j]->at) |
950 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
951 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
952 | if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
953 | } |
|
|
954 | else if (pos < E) |
|
|
955 | { |
|
|
956 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
957 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
958 | if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
959 | if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
960 | } |
|
|
961 | else |
658 | break; |
962 | break; |
659 | |
963 | |
|
|
964 | if (ANHE_at (he) <= minat) |
|
|
965 | break; |
|
|
966 | |
|
|
967 | heap [k] = *minpos; |
|
|
968 | ev_active (ANHE_w (*minpos)) = k; |
|
|
969 | |
|
|
970 | k = minpos - heap; |
|
|
971 | } |
|
|
972 | |
|
|
973 | heap [k] = he; |
|
|
974 | ev_active (ANHE_w (he)) = k; |
|
|
975 | } |
|
|
976 | |
|
|
977 | #else /* 4HEAP */ |
|
|
978 | |
|
|
979 | #define HEAP0 1 |
|
|
980 | #define HPARENT(k) ((k) >> 1) |
|
|
981 | #define UPHEAP_DONE(p,k) (!(p)) |
|
|
982 | |
|
|
983 | /* away from the root */ |
|
|
984 | inline_speed void |
|
|
985 | downheap (ANHE *heap, int N, int k) |
|
|
986 | { |
|
|
987 | ANHE he = heap [k]; |
|
|
988 | |
|
|
989 | for (;;) |
|
|
990 | { |
|
|
991 | int c = k << 1; |
|
|
992 | |
|
|
993 | if (c > N + HEAP0 - 1) |
|
|
994 | break; |
|
|
995 | |
|
|
996 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
|
|
997 | ? 1 : 0; |
|
|
998 | |
|
|
999 | if (ANHE_at (he) <= ANHE_at (heap [c])) |
|
|
1000 | break; |
|
|
1001 | |
660 | heap [k] = heap [j]; |
1002 | heap [k] = heap [c]; |
661 | ((W)heap [k])->active = k + 1; |
1003 | ev_active (ANHE_w (heap [k])) = k; |
|
|
1004 | |
662 | k = j; |
1005 | k = c; |
663 | } |
1006 | } |
664 | |
1007 | |
665 | heap [k] = w; |
1008 | heap [k] = he; |
666 | ((W)heap [k])->active = k + 1; |
1009 | ev_active (ANHE_w (he)) = k; |
667 | } |
1010 | } |
|
|
1011 | #endif |
668 | |
1012 | |
669 | void inline_size |
1013 | /* towards the root */ |
|
|
1014 | inline_speed void |
|
|
1015 | upheap (ANHE *heap, int k) |
|
|
1016 | { |
|
|
1017 | ANHE he = heap [k]; |
|
|
1018 | |
|
|
1019 | for (;;) |
|
|
1020 | { |
|
|
1021 | int p = HPARENT (k); |
|
|
1022 | |
|
|
1023 | if (UPHEAP_DONE (p, k) || ANHE_at (heap [p]) <= ANHE_at (he)) |
|
|
1024 | break; |
|
|
1025 | |
|
|
1026 | heap [k] = heap [p]; |
|
|
1027 | ev_active (ANHE_w (heap [k])) = k; |
|
|
1028 | k = p; |
|
|
1029 | } |
|
|
1030 | |
|
|
1031 | heap [k] = he; |
|
|
1032 | ev_active (ANHE_w (he)) = k; |
|
|
1033 | } |
|
|
1034 | |
|
|
1035 | /* move an element suitably so it is in a correct place */ |
|
|
1036 | inline_size void |
670 | adjustheap (WT *heap, int N, int k) |
1037 | adjustheap (ANHE *heap, int N, int k) |
671 | { |
1038 | { |
|
|
1039 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
672 | upheap (heap, k); |
1040 | upheap (heap, k); |
|
|
1041 | else |
673 | downheap (heap, N, k); |
1042 | downheap (heap, N, k); |
|
|
1043 | } |
|
|
1044 | |
|
|
1045 | /* rebuild the heap: this function is used only once and executed rarely */ |
|
|
1046 | inline_size void |
|
|
1047 | reheap (ANHE *heap, int N) |
|
|
1048 | { |
|
|
1049 | int i; |
|
|
1050 | |
|
|
1051 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
|
|
1052 | /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */ |
|
|
1053 | for (i = 0; i < N; ++i) |
|
|
1054 | upheap (heap, i + HEAP0); |
674 | } |
1055 | } |
675 | |
1056 | |
676 | /*****************************************************************************/ |
1057 | /*****************************************************************************/ |
677 | |
1058 | |
|
|
1059 | /* associate signal watchers to a signal signal */ |
678 | typedef struct |
1060 | typedef struct |
679 | { |
1061 | { |
680 | WL head; |
1062 | WL head; |
681 | sig_atomic_t volatile gotsig; |
1063 | EV_ATOMIC_T gotsig; |
682 | } ANSIG; |
1064 | } ANSIG; |
683 | |
1065 | |
684 | static ANSIG *signals; |
1066 | static ANSIG *signals; |
685 | static int signalmax; |
1067 | static int signalmax; |
686 | |
1068 | |
687 | static int sigpipe [2]; |
1069 | static EV_ATOMIC_T gotsig; |
688 | static sig_atomic_t volatile gotsig; |
|
|
689 | static ev_io sigev; |
|
|
690 | |
1070 | |
691 | void inline_size |
1071 | /*****************************************************************************/ |
692 | signals_init (ANSIG *base, int count) |
|
|
693 | { |
|
|
694 | while (count--) |
|
|
695 | { |
|
|
696 | base->head = 0; |
|
|
697 | base->gotsig = 0; |
|
|
698 | |
1072 | |
699 | ++base; |
1073 | /* used to prepare libev internal fd's */ |
700 | } |
1074 | /* this is not fork-safe */ |
701 | } |
1075 | inline_speed void |
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 | |
|
|
754 | void inline_speed |
|
|
755 | fd_intern (int fd) |
1076 | fd_intern (int fd) |
756 | { |
1077 | { |
757 | #ifdef _WIN32 |
1078 | #ifdef _WIN32 |
758 | int arg = 1; |
1079 | unsigned long arg = 1; |
759 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
1080 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
760 | #else |
1081 | #else |
761 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
1082 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
762 | fcntl (fd, F_SETFL, O_NONBLOCK); |
1083 | fcntl (fd, F_SETFL, O_NONBLOCK); |
763 | #endif |
1084 | #endif |
764 | } |
1085 | } |
765 | |
1086 | |
766 | static void noinline |
1087 | static void noinline |
767 | siginit (EV_P) |
1088 | evpipe_init (EV_P) |
768 | { |
1089 | { |
|
|
1090 | if (!ev_is_active (&pipe_w)) |
|
|
1091 | { |
|
|
1092 | #if EV_USE_EVENTFD |
|
|
1093 | if ((evfd = eventfd (0, 0)) >= 0) |
|
|
1094 | { |
|
|
1095 | evpipe [0] = -1; |
|
|
1096 | fd_intern (evfd); |
|
|
1097 | ev_io_set (&pipe_w, evfd, EV_READ); |
|
|
1098 | } |
|
|
1099 | else |
|
|
1100 | #endif |
|
|
1101 | { |
|
|
1102 | while (pipe (evpipe)) |
|
|
1103 | ev_syserr ("(libev) error creating signal/async pipe"); |
|
|
1104 | |
769 | fd_intern (sigpipe [0]); |
1105 | fd_intern (evpipe [0]); |
770 | fd_intern (sigpipe [1]); |
1106 | fd_intern (evpipe [1]); |
|
|
1107 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
|
|
1108 | } |
771 | |
1109 | |
772 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
|
|
773 | ev_io_start (EV_A_ &sigev); |
1110 | ev_io_start (EV_A_ &pipe_w); |
774 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1111 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
1112 | } |
|
|
1113 | } |
|
|
1114 | |
|
|
1115 | inline_size void |
|
|
1116 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1117 | { |
|
|
1118 | if (!*flag) |
|
|
1119 | { |
|
|
1120 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1121 | |
|
|
1122 | *flag = 1; |
|
|
1123 | |
|
|
1124 | #if EV_USE_EVENTFD |
|
|
1125 | if (evfd >= 0) |
|
|
1126 | { |
|
|
1127 | uint64_t counter = 1; |
|
|
1128 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
1129 | } |
|
|
1130 | else |
|
|
1131 | #endif |
|
|
1132 | write (evpipe [1], &old_errno, 1); |
|
|
1133 | |
|
|
1134 | errno = old_errno; |
|
|
1135 | } |
|
|
1136 | } |
|
|
1137 | |
|
|
1138 | /* called whenever the libev signal pipe */ |
|
|
1139 | /* got some events (signal, async) */ |
|
|
1140 | static void |
|
|
1141 | pipecb (EV_P_ ev_io *iow, int revents) |
|
|
1142 | { |
|
|
1143 | #if EV_USE_EVENTFD |
|
|
1144 | if (evfd >= 0) |
|
|
1145 | { |
|
|
1146 | uint64_t counter; |
|
|
1147 | read (evfd, &counter, sizeof (uint64_t)); |
|
|
1148 | } |
|
|
1149 | else |
|
|
1150 | #endif |
|
|
1151 | { |
|
|
1152 | char dummy; |
|
|
1153 | read (evpipe [0], &dummy, 1); |
|
|
1154 | } |
|
|
1155 | |
|
|
1156 | if (gotsig && ev_is_default_loop (EV_A)) |
|
|
1157 | { |
|
|
1158 | int signum; |
|
|
1159 | gotsig = 0; |
|
|
1160 | |
|
|
1161 | for (signum = signalmax; signum--; ) |
|
|
1162 | if (signals [signum].gotsig) |
|
|
1163 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
1164 | } |
|
|
1165 | |
|
|
1166 | #if EV_ASYNC_ENABLE |
|
|
1167 | if (gotasync) |
|
|
1168 | { |
|
|
1169 | int i; |
|
|
1170 | gotasync = 0; |
|
|
1171 | |
|
|
1172 | for (i = asynccnt; i--; ) |
|
|
1173 | if (asyncs [i]->sent) |
|
|
1174 | { |
|
|
1175 | asyncs [i]->sent = 0; |
|
|
1176 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
|
|
1177 | } |
|
|
1178 | } |
|
|
1179 | #endif |
775 | } |
1180 | } |
776 | |
1181 | |
777 | /*****************************************************************************/ |
1182 | /*****************************************************************************/ |
778 | |
1183 | |
|
|
1184 | static void |
|
|
1185 | ev_sighandler (int signum) |
|
|
1186 | { |
|
|
1187 | #if EV_MULTIPLICITY |
|
|
1188 | struct ev_loop *loop = &default_loop_struct; |
|
|
1189 | #endif |
|
|
1190 | |
|
|
1191 | #if _WIN32 |
|
|
1192 | signal (signum, ev_sighandler); |
|
|
1193 | #endif |
|
|
1194 | |
|
|
1195 | signals [signum - 1].gotsig = 1; |
|
|
1196 | evpipe_write (EV_A_ &gotsig); |
|
|
1197 | } |
|
|
1198 | |
|
|
1199 | void noinline |
|
|
1200 | ev_feed_signal_event (EV_P_ int signum) |
|
|
1201 | { |
|
|
1202 | WL w; |
|
|
1203 | |
|
|
1204 | #if EV_MULTIPLICITY |
|
|
1205 | assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1206 | #endif |
|
|
1207 | |
|
|
1208 | --signum; |
|
|
1209 | |
|
|
1210 | if (signum < 0 || signum >= signalmax) |
|
|
1211 | return; |
|
|
1212 | |
|
|
1213 | signals [signum].gotsig = 0; |
|
|
1214 | |
|
|
1215 | for (w = signals [signum].head; w; w = w->next) |
|
|
1216 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
1217 | } |
|
|
1218 | |
|
|
1219 | /*****************************************************************************/ |
|
|
1220 | |
779 | static ev_child *childs [EV_PID_HASHSIZE]; |
1221 | static WL childs [EV_PID_HASHSIZE]; |
780 | |
1222 | |
781 | #ifndef _WIN32 |
1223 | #ifndef _WIN32 |
782 | |
1224 | |
783 | static ev_signal childev; |
1225 | static ev_signal childev; |
784 | |
1226 | |
785 | void inline_speed |
1227 | #ifndef WIFCONTINUED |
|
|
1228 | # define WIFCONTINUED(status) 0 |
|
|
1229 | #endif |
|
|
1230 | |
|
|
1231 | /* handle a single child status event */ |
|
|
1232 | inline_speed void |
786 | child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) |
1233 | child_reap (EV_P_ int chain, int pid, int status) |
787 | { |
1234 | { |
788 | ev_child *w; |
1235 | ev_child *w; |
|
|
1236 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
789 | |
1237 | |
790 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1238 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1239 | { |
791 | if (w->pid == pid || !w->pid) |
1240 | if ((w->pid == pid || !w->pid) |
|
|
1241 | && (!traced || (w->flags & 1))) |
792 | { |
1242 | { |
793 | ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */ |
1243 | 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; |
1244 | w->rpid = pid; |
795 | w->rstatus = status; |
1245 | w->rstatus = status; |
796 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
1246 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
797 | } |
1247 | } |
|
|
1248 | } |
798 | } |
1249 | } |
799 | |
1250 | |
800 | #ifndef WCONTINUED |
1251 | #ifndef WCONTINUED |
801 | # define WCONTINUED 0 |
1252 | # define WCONTINUED 0 |
802 | #endif |
1253 | #endif |
803 | |
1254 | |
|
|
1255 | /* called on sigchld etc., calls waitpid */ |
804 | static void |
1256 | static void |
805 | childcb (EV_P_ ev_signal *sw, int revents) |
1257 | childcb (EV_P_ ev_signal *sw, int revents) |
806 | { |
1258 | { |
807 | int pid, status; |
1259 | int pid, status; |
808 | |
1260 | |
… | |
… | |
811 | if (!WCONTINUED |
1263 | if (!WCONTINUED |
812 | || errno != EINVAL |
1264 | || errno != EINVAL |
813 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
1265 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
814 | return; |
1266 | return; |
815 | |
1267 | |
816 | /* make sure we are called again until all childs have been reaped */ |
1268 | /* 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 */ |
1269 | /* 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); |
1270 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
819 | |
1271 | |
820 | child_reap (EV_A_ sw, pid, pid, status); |
1272 | child_reap (EV_A_ pid, pid, status); |
821 | if (EV_PID_HASHSIZE > 1) |
1273 | 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 */ |
1274 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
823 | } |
1275 | } |
824 | |
1276 | |
825 | #endif |
1277 | #endif |
826 | |
1278 | |
827 | /*****************************************************************************/ |
1279 | /*****************************************************************************/ |
… | |
… | |
889 | /* kqueue is borked on everything but netbsd apparently */ |
1341 | /* kqueue is borked on everything but netbsd apparently */ |
890 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1342 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
891 | flags &= ~EVBACKEND_KQUEUE; |
1343 | flags &= ~EVBACKEND_KQUEUE; |
892 | #endif |
1344 | #endif |
893 | #ifdef __APPLE__ |
1345 | #ifdef __APPLE__ |
894 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
1346 | /* only select works correctly on that "unix-certified" platform */ |
895 | flags &= ~EVBACKEND_POLL; |
1347 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
|
|
1348 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
896 | #endif |
1349 | #endif |
897 | |
1350 | |
898 | return flags; |
1351 | return flags; |
899 | } |
1352 | } |
900 | |
1353 | |
901 | unsigned int |
1354 | unsigned int |
902 | ev_embeddable_backends (void) |
1355 | ev_embeddable_backends (void) |
903 | { |
1356 | { |
904 | return EVBACKEND_EPOLL |
1357 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
905 | | EVBACKEND_KQUEUE |
1358 | |
906 | | EVBACKEND_PORT; |
1359 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
|
|
1360 | /* please fix it and tell me how to detect the fix */ |
|
|
1361 | flags &= ~EVBACKEND_EPOLL; |
|
|
1362 | |
|
|
1363 | return flags; |
907 | } |
1364 | } |
908 | |
1365 | |
909 | unsigned int |
1366 | unsigned int |
910 | ev_backend (EV_P) |
1367 | ev_backend (EV_P) |
911 | { |
1368 | { |
912 | return backend; |
1369 | return backend; |
913 | } |
1370 | } |
914 | |
1371 | |
|
|
1372 | #if EV_MINIMAL < 2 |
915 | unsigned int |
1373 | unsigned int |
916 | ev_loop_count (EV_P) |
1374 | ev_loop_count (EV_P) |
917 | { |
1375 | { |
918 | return loop_count; |
1376 | return loop_count; |
919 | } |
1377 | } |
920 | |
1378 | |
|
|
1379 | unsigned int |
|
|
1380 | ev_loop_depth (EV_P) |
|
|
1381 | { |
|
|
1382 | return loop_depth; |
|
|
1383 | } |
|
|
1384 | |
|
|
1385 | void |
|
|
1386 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1387 | { |
|
|
1388 | io_blocktime = interval; |
|
|
1389 | } |
|
|
1390 | |
|
|
1391 | void |
|
|
1392 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1393 | { |
|
|
1394 | timeout_blocktime = interval; |
|
|
1395 | } |
|
|
1396 | |
|
|
1397 | void |
|
|
1398 | ev_set_userdata (EV_P_ void *data) |
|
|
1399 | { |
|
|
1400 | userdata = data; |
|
|
1401 | } |
|
|
1402 | |
|
|
1403 | void * |
|
|
1404 | ev_userdata (EV_P) |
|
|
1405 | { |
|
|
1406 | return userdata; |
|
|
1407 | } |
|
|
1408 | |
|
|
1409 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
|
|
1410 | { |
|
|
1411 | invoke_cb = invoke_pending_cb; |
|
|
1412 | } |
|
|
1413 | |
|
|
1414 | void ev_set_blocking_cb (EV_P_ void (*suspend_cb_)(EV_P), void (*resume_cb_)(EV_P)) |
|
|
1415 | { |
|
|
1416 | suspend_cb = suspend_cb_; |
|
|
1417 | resume_cb = resume_cb_; |
|
|
1418 | } |
|
|
1419 | #endif |
|
|
1420 | |
|
|
1421 | /* initialise a loop structure, must be zero-initialised */ |
921 | static void noinline |
1422 | static void noinline |
922 | loop_init (EV_P_ unsigned int flags) |
1423 | loop_init (EV_P_ unsigned int flags) |
923 | { |
1424 | { |
924 | if (!backend) |
1425 | if (!backend) |
925 | { |
1426 | { |
|
|
1427 | #if EV_USE_REALTIME |
|
|
1428 | if (!have_realtime) |
|
|
1429 | { |
|
|
1430 | struct timespec ts; |
|
|
1431 | |
|
|
1432 | if (!clock_gettime (CLOCK_REALTIME, &ts)) |
|
|
1433 | have_realtime = 1; |
|
|
1434 | } |
|
|
1435 | #endif |
|
|
1436 | |
926 | #if EV_USE_MONOTONIC |
1437 | #if EV_USE_MONOTONIC |
|
|
1438 | if (!have_monotonic) |
927 | { |
1439 | { |
928 | struct timespec ts; |
1440 | struct timespec ts; |
|
|
1441 | |
929 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1442 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
930 | have_monotonic = 1; |
1443 | have_monotonic = 1; |
931 | } |
1444 | } |
932 | #endif |
1445 | #endif |
933 | |
1446 | |
934 | ev_rt_now = ev_time (); |
1447 | ev_rt_now = ev_time (); |
935 | mn_now = get_clock (); |
1448 | mn_now = get_clock (); |
936 | now_floor = mn_now; |
1449 | now_floor = mn_now; |
937 | rtmn_diff = ev_rt_now - mn_now; |
1450 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1451 | #if EV_MINIMAL < 2 |
|
|
1452 | invoke_cb = ev_invoke_pending; |
|
|
1453 | #endif |
|
|
1454 | |
|
|
1455 | io_blocktime = 0.; |
|
|
1456 | timeout_blocktime = 0.; |
|
|
1457 | backend = 0; |
|
|
1458 | backend_fd = -1; |
|
|
1459 | gotasync = 0; |
|
|
1460 | #if EV_USE_INOTIFY |
|
|
1461 | fs_fd = -2; |
|
|
1462 | #endif |
938 | |
1463 | |
939 | /* pid check not overridable via env */ |
1464 | /* pid check not overridable via env */ |
940 | #ifndef _WIN32 |
1465 | #ifndef _WIN32 |
941 | if (flags & EVFLAG_FORKCHECK) |
1466 | if (flags & EVFLAG_FORKCHECK) |
942 | curpid = getpid (); |
1467 | curpid = getpid (); |
… | |
… | |
945 | if (!(flags & EVFLAG_NOENV) |
1470 | if (!(flags & EVFLAG_NOENV) |
946 | && !enable_secure () |
1471 | && !enable_secure () |
947 | && getenv ("LIBEV_FLAGS")) |
1472 | && getenv ("LIBEV_FLAGS")) |
948 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1473 | flags = atoi (getenv ("LIBEV_FLAGS")); |
949 | |
1474 | |
950 | if (!(flags & 0x0000ffffUL)) |
1475 | if (!(flags & 0x0000ffffU)) |
951 | flags |= ev_recommended_backends (); |
1476 | flags |= ev_recommended_backends (); |
952 | |
|
|
953 | backend = 0; |
|
|
954 | backend_fd = -1; |
|
|
955 | #if EV_USE_INOTIFY |
|
|
956 | fs_fd = -2; |
|
|
957 | #endif |
|
|
958 | |
1477 | |
959 | #if EV_USE_PORT |
1478 | #if EV_USE_PORT |
960 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1479 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
961 | #endif |
1480 | #endif |
962 | #if EV_USE_KQUEUE |
1481 | #if EV_USE_KQUEUE |
… | |
… | |
970 | #endif |
1489 | #endif |
971 | #if EV_USE_SELECT |
1490 | #if EV_USE_SELECT |
972 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1491 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
973 | #endif |
1492 | #endif |
974 | |
1493 | |
|
|
1494 | ev_prepare_init (&pending_w, pendingcb); |
|
|
1495 | |
975 | ev_init (&sigev, sigcb); |
1496 | ev_init (&pipe_w, pipecb); |
976 | ev_set_priority (&sigev, EV_MAXPRI); |
1497 | ev_set_priority (&pipe_w, EV_MAXPRI); |
977 | } |
1498 | } |
978 | } |
1499 | } |
979 | |
1500 | |
|
|
1501 | /* free up a loop structure */ |
980 | static void noinline |
1502 | static void noinline |
981 | loop_destroy (EV_P) |
1503 | loop_destroy (EV_P) |
982 | { |
1504 | { |
983 | int i; |
1505 | int i; |
|
|
1506 | |
|
|
1507 | if (ev_is_active (&pipe_w)) |
|
|
1508 | { |
|
|
1509 | ev_ref (EV_A); /* signal watcher */ |
|
|
1510 | ev_io_stop (EV_A_ &pipe_w); |
|
|
1511 | |
|
|
1512 | #if EV_USE_EVENTFD |
|
|
1513 | if (evfd >= 0) |
|
|
1514 | close (evfd); |
|
|
1515 | #endif |
|
|
1516 | |
|
|
1517 | if (evpipe [0] >= 0) |
|
|
1518 | { |
|
|
1519 | close (evpipe [0]); |
|
|
1520 | close (evpipe [1]); |
|
|
1521 | } |
|
|
1522 | } |
984 | |
1523 | |
985 | #if EV_USE_INOTIFY |
1524 | #if EV_USE_INOTIFY |
986 | if (fs_fd >= 0) |
1525 | if (fs_fd >= 0) |
987 | close (fs_fd); |
1526 | close (fs_fd); |
988 | #endif |
1527 | #endif |
… | |
… | |
1012 | #if EV_IDLE_ENABLE |
1551 | #if EV_IDLE_ENABLE |
1013 | array_free (idle, [i]); |
1552 | array_free (idle, [i]); |
1014 | #endif |
1553 | #endif |
1015 | } |
1554 | } |
1016 | |
1555 | |
|
|
1556 | ev_free (anfds); anfdmax = 0; |
|
|
1557 | |
1017 | /* have to use the microsoft-never-gets-it-right macro */ |
1558 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
1559 | array_free (rfeed, EMPTY); |
1018 | array_free (fdchange, EMPTY); |
1560 | array_free (fdchange, EMPTY); |
1019 | array_free (timer, EMPTY); |
1561 | array_free (timer, EMPTY); |
1020 | #if EV_PERIODIC_ENABLE |
1562 | #if EV_PERIODIC_ENABLE |
1021 | array_free (periodic, EMPTY); |
1563 | array_free (periodic, EMPTY); |
1022 | #endif |
1564 | #endif |
|
|
1565 | #if EV_FORK_ENABLE |
|
|
1566 | array_free (fork, EMPTY); |
|
|
1567 | #endif |
1023 | array_free (prepare, EMPTY); |
1568 | array_free (prepare, EMPTY); |
1024 | array_free (check, EMPTY); |
1569 | array_free (check, EMPTY); |
|
|
1570 | #if EV_ASYNC_ENABLE |
|
|
1571 | array_free (async, EMPTY); |
|
|
1572 | #endif |
1025 | |
1573 | |
1026 | backend = 0; |
1574 | backend = 0; |
1027 | } |
1575 | } |
1028 | |
1576 | |
|
|
1577 | #if EV_USE_INOTIFY |
1029 | void inline_size infy_fork (EV_P); |
1578 | inline_size void infy_fork (EV_P); |
|
|
1579 | #endif |
1030 | |
1580 | |
1031 | void inline_size |
1581 | inline_size void |
1032 | loop_fork (EV_P) |
1582 | loop_fork (EV_P) |
1033 | { |
1583 | { |
1034 | #if EV_USE_PORT |
1584 | #if EV_USE_PORT |
1035 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1585 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1036 | #endif |
1586 | #endif |
… | |
… | |
1042 | #endif |
1592 | #endif |
1043 | #if EV_USE_INOTIFY |
1593 | #if EV_USE_INOTIFY |
1044 | infy_fork (EV_A); |
1594 | infy_fork (EV_A); |
1045 | #endif |
1595 | #endif |
1046 | |
1596 | |
1047 | if (ev_is_active (&sigev)) |
1597 | if (ev_is_active (&pipe_w)) |
1048 | { |
1598 | { |
1049 | /* default loop */ |
1599 | /* this "locks" the handlers against writing to the pipe */ |
|
|
1600 | /* while we modify the fd vars */ |
|
|
1601 | gotsig = 1; |
|
|
1602 | #if EV_ASYNC_ENABLE |
|
|
1603 | gotasync = 1; |
|
|
1604 | #endif |
1050 | |
1605 | |
1051 | ev_ref (EV_A); |
1606 | ev_ref (EV_A); |
1052 | ev_io_stop (EV_A_ &sigev); |
1607 | ev_io_stop (EV_A_ &pipe_w); |
|
|
1608 | |
|
|
1609 | #if EV_USE_EVENTFD |
|
|
1610 | if (evfd >= 0) |
|
|
1611 | close (evfd); |
|
|
1612 | #endif |
|
|
1613 | |
|
|
1614 | if (evpipe [0] >= 0) |
|
|
1615 | { |
1053 | close (sigpipe [0]); |
1616 | close (evpipe [0]); |
1054 | close (sigpipe [1]); |
1617 | close (evpipe [1]); |
|
|
1618 | } |
1055 | |
1619 | |
1056 | while (pipe (sigpipe)) |
|
|
1057 | syserr ("(libev) error creating pipe"); |
|
|
1058 | |
|
|
1059 | siginit (EV_A); |
1620 | evpipe_init (EV_A); |
|
|
1621 | /* now iterate over everything, in case we missed something */ |
|
|
1622 | pipecb (EV_A_ &pipe_w, EV_READ); |
1060 | } |
1623 | } |
1061 | |
1624 | |
1062 | postfork = 0; |
1625 | postfork = 0; |
1063 | } |
1626 | } |
1064 | |
1627 | |
1065 | #if EV_MULTIPLICITY |
1628 | #if EV_MULTIPLICITY |
|
|
1629 | |
1066 | struct ev_loop * |
1630 | struct ev_loop * |
1067 | ev_loop_new (unsigned int flags) |
1631 | ev_loop_new (unsigned int flags) |
1068 | { |
1632 | { |
1069 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1633 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1070 | |
1634 | |
… | |
… | |
1086 | } |
1650 | } |
1087 | |
1651 | |
1088 | void |
1652 | void |
1089 | ev_loop_fork (EV_P) |
1653 | ev_loop_fork (EV_P) |
1090 | { |
1654 | { |
1091 | postfork = 1; |
1655 | postfork = 1; /* must be in line with ev_default_fork */ |
1092 | } |
1656 | } |
|
|
1657 | #endif /* multiplicity */ |
1093 | |
1658 | |
|
|
1659 | #if EV_VERIFY |
|
|
1660 | static void noinline |
|
|
1661 | verify_watcher (EV_P_ W w) |
|
|
1662 | { |
|
|
1663 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
|
|
1664 | |
|
|
1665 | if (w->pending) |
|
|
1666 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
|
|
1667 | } |
|
|
1668 | |
|
|
1669 | static void noinline |
|
|
1670 | verify_heap (EV_P_ ANHE *heap, int N) |
|
|
1671 | { |
|
|
1672 | int i; |
|
|
1673 | |
|
|
1674 | for (i = HEAP0; i < N + HEAP0; ++i) |
|
|
1675 | { |
|
|
1676 | assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
|
|
1677 | assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
|
|
1678 | assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
|
|
1679 | |
|
|
1680 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
|
|
1681 | } |
|
|
1682 | } |
|
|
1683 | |
|
|
1684 | static void noinline |
|
|
1685 | array_verify (EV_P_ W *ws, int cnt) |
|
|
1686 | { |
|
|
1687 | while (cnt--) |
|
|
1688 | { |
|
|
1689 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
|
|
1690 | verify_watcher (EV_A_ ws [cnt]); |
|
|
1691 | } |
|
|
1692 | } |
|
|
1693 | #endif |
|
|
1694 | |
|
|
1695 | #if EV_MINIMAL < 2 |
|
|
1696 | void |
|
|
1697 | ev_loop_verify (EV_P) |
|
|
1698 | { |
|
|
1699 | #if EV_VERIFY |
|
|
1700 | int i; |
|
|
1701 | WL w; |
|
|
1702 | |
|
|
1703 | assert (activecnt >= -1); |
|
|
1704 | |
|
|
1705 | assert (fdchangemax >= fdchangecnt); |
|
|
1706 | for (i = 0; i < fdchangecnt; ++i) |
|
|
1707 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
|
|
1708 | |
|
|
1709 | assert (anfdmax >= 0); |
|
|
1710 | for (i = 0; i < anfdmax; ++i) |
|
|
1711 | for (w = anfds [i].head; w; w = w->next) |
|
|
1712 | { |
|
|
1713 | verify_watcher (EV_A_ (W)w); |
|
|
1714 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
|
|
1715 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
|
|
1716 | } |
|
|
1717 | |
|
|
1718 | assert (timermax >= timercnt); |
|
|
1719 | verify_heap (EV_A_ timers, timercnt); |
|
|
1720 | |
|
|
1721 | #if EV_PERIODIC_ENABLE |
|
|
1722 | assert (periodicmax >= periodiccnt); |
|
|
1723 | verify_heap (EV_A_ periodics, periodiccnt); |
|
|
1724 | #endif |
|
|
1725 | |
|
|
1726 | for (i = NUMPRI; i--; ) |
|
|
1727 | { |
|
|
1728 | assert (pendingmax [i] >= pendingcnt [i]); |
|
|
1729 | #if EV_IDLE_ENABLE |
|
|
1730 | assert (idleall >= 0); |
|
|
1731 | assert (idlemax [i] >= idlecnt [i]); |
|
|
1732 | array_verify (EV_A_ (W *)idles [i], idlecnt [i]); |
|
|
1733 | #endif |
|
|
1734 | } |
|
|
1735 | |
|
|
1736 | #if EV_FORK_ENABLE |
|
|
1737 | assert (forkmax >= forkcnt); |
|
|
1738 | array_verify (EV_A_ (W *)forks, forkcnt); |
|
|
1739 | #endif |
|
|
1740 | |
|
|
1741 | #if EV_ASYNC_ENABLE |
|
|
1742 | assert (asyncmax >= asynccnt); |
|
|
1743 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
|
|
1744 | #endif |
|
|
1745 | |
|
|
1746 | assert (preparemax >= preparecnt); |
|
|
1747 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
1748 | |
|
|
1749 | assert (checkmax >= checkcnt); |
|
|
1750 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
1751 | |
|
|
1752 | # if 0 |
|
|
1753 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1754 | for (signum = signalmax; signum--; ) if (signals [signum].gotsig) |
|
|
1755 | # endif |
|
|
1756 | #endif |
|
|
1757 | } |
1094 | #endif |
1758 | #endif |
1095 | |
1759 | |
1096 | #if EV_MULTIPLICITY |
1760 | #if EV_MULTIPLICITY |
1097 | struct ev_loop * |
1761 | struct ev_loop * |
1098 | ev_default_loop_init (unsigned int flags) |
1762 | ev_default_loop_init (unsigned int flags) |
1099 | #else |
1763 | #else |
1100 | int |
1764 | int |
1101 | ev_default_loop (unsigned int flags) |
1765 | ev_default_loop (unsigned int flags) |
1102 | #endif |
1766 | #endif |
1103 | { |
1767 | { |
1104 | if (sigpipe [0] == sigpipe [1]) |
|
|
1105 | if (pipe (sigpipe)) |
|
|
1106 | return 0; |
|
|
1107 | |
|
|
1108 | if (!ev_default_loop_ptr) |
1768 | if (!ev_default_loop_ptr) |
1109 | { |
1769 | { |
1110 | #if EV_MULTIPLICITY |
1770 | #if EV_MULTIPLICITY |
1111 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1771 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1112 | #else |
1772 | #else |
… | |
… | |
1115 | |
1775 | |
1116 | loop_init (EV_A_ flags); |
1776 | loop_init (EV_A_ flags); |
1117 | |
1777 | |
1118 | if (ev_backend (EV_A)) |
1778 | if (ev_backend (EV_A)) |
1119 | { |
1779 | { |
1120 | siginit (EV_A); |
|
|
1121 | |
|
|
1122 | #ifndef _WIN32 |
1780 | #ifndef _WIN32 |
1123 | ev_signal_init (&childev, childcb, SIGCHLD); |
1781 | ev_signal_init (&childev, childcb, SIGCHLD); |
1124 | ev_set_priority (&childev, EV_MAXPRI); |
1782 | ev_set_priority (&childev, EV_MAXPRI); |
1125 | ev_signal_start (EV_A_ &childev); |
1783 | ev_signal_start (EV_A_ &childev); |
1126 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1784 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
… | |
… | |
1138 | { |
1796 | { |
1139 | #if EV_MULTIPLICITY |
1797 | #if EV_MULTIPLICITY |
1140 | struct ev_loop *loop = ev_default_loop_ptr; |
1798 | struct ev_loop *loop = ev_default_loop_ptr; |
1141 | #endif |
1799 | #endif |
1142 | |
1800 | |
|
|
1801 | ev_default_loop_ptr = 0; |
|
|
1802 | |
1143 | #ifndef _WIN32 |
1803 | #ifndef _WIN32 |
1144 | ev_ref (EV_A); /* child watcher */ |
1804 | ev_ref (EV_A); /* child watcher */ |
1145 | ev_signal_stop (EV_A_ &childev); |
1805 | ev_signal_stop (EV_A_ &childev); |
1146 | #endif |
1806 | #endif |
1147 | |
1807 | |
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); |
1808 | loop_destroy (EV_A); |
1155 | } |
1809 | } |
1156 | |
1810 | |
1157 | void |
1811 | void |
1158 | ev_default_fork (void) |
1812 | ev_default_fork (void) |
1159 | { |
1813 | { |
1160 | #if EV_MULTIPLICITY |
1814 | #if EV_MULTIPLICITY |
1161 | struct ev_loop *loop = ev_default_loop_ptr; |
1815 | struct ev_loop *loop = ev_default_loop_ptr; |
1162 | #endif |
1816 | #endif |
1163 | |
1817 | |
1164 | if (backend) |
1818 | postfork = 1; /* must be in line with ev_loop_fork */ |
1165 | postfork = 1; |
|
|
1166 | } |
1819 | } |
1167 | |
1820 | |
1168 | /*****************************************************************************/ |
1821 | /*****************************************************************************/ |
1169 | |
1822 | |
1170 | void |
1823 | void |
1171 | ev_invoke (EV_P_ void *w, int revents) |
1824 | ev_invoke (EV_P_ void *w, int revents) |
1172 | { |
1825 | { |
1173 | EV_CB_INVOKE ((W)w, revents); |
1826 | EV_CB_INVOKE ((W)w, revents); |
1174 | } |
1827 | } |
1175 | |
1828 | |
1176 | void inline_speed |
1829 | void noinline |
1177 | call_pending (EV_P) |
1830 | ev_invoke_pending (EV_P) |
1178 | { |
1831 | { |
1179 | int pri; |
1832 | int pri; |
1180 | |
1833 | |
1181 | for (pri = NUMPRI; pri--; ) |
1834 | for (pri = NUMPRI; pri--; ) |
1182 | while (pendingcnt [pri]) |
1835 | while (pendingcnt [pri]) |
1183 | { |
1836 | { |
1184 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1837 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1185 | |
1838 | |
1186 | if (expect_true (p->w)) |
|
|
1187 | { |
|
|
1188 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
1839 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
|
|
1840 | /* ^ this is no longer true, as pending_w could be here */ |
1189 | |
1841 | |
1190 | p->w->pending = 0; |
1842 | p->w->pending = 0; |
1191 | EV_CB_INVOKE (p->w, p->events); |
1843 | EV_CB_INVOKE (p->w, p->events); |
1192 | } |
1844 | EV_FREQUENT_CHECK; |
1193 | } |
1845 | } |
1194 | } |
1846 | } |
1195 | |
1847 | |
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 + 0.0001220703125 /* 1/8192 */); |
|
|
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 | |
|
|
1275 | #if EV_IDLE_ENABLE |
1848 | #if EV_IDLE_ENABLE |
1276 | void inline_size |
1849 | /* make idle watchers pending. this handles the "call-idle */ |
|
|
1850 | /* only when higher priorities are idle" logic */ |
|
|
1851 | inline_size void |
1277 | idle_reify (EV_P) |
1852 | idle_reify (EV_P) |
1278 | { |
1853 | { |
1279 | if (expect_false (idleall)) |
1854 | if (expect_false (idleall)) |
1280 | { |
1855 | { |
1281 | int pri; |
1856 | int pri; |
… | |
… | |
1293 | } |
1868 | } |
1294 | } |
1869 | } |
1295 | } |
1870 | } |
1296 | #endif |
1871 | #endif |
1297 | |
1872 | |
1298 | int inline_size |
1873 | /* make timers pending */ |
1299 | time_update_monotonic (EV_P) |
1874 | inline_size void |
|
|
1875 | timers_reify (EV_P) |
1300 | { |
1876 | { |
|
|
1877 | EV_FREQUENT_CHECK; |
|
|
1878 | |
|
|
1879 | if (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
|
|
1880 | { |
|
|
1881 | do |
|
|
1882 | { |
|
|
1883 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
|
|
1884 | |
|
|
1885 | /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1886 | |
|
|
1887 | /* first reschedule or stop timer */ |
|
|
1888 | if (w->repeat) |
|
|
1889 | { |
|
|
1890 | ev_at (w) += w->repeat; |
|
|
1891 | if (ev_at (w) < mn_now) |
|
|
1892 | ev_at (w) = mn_now; |
|
|
1893 | |
|
|
1894 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1895 | |
|
|
1896 | ANHE_at_cache (timers [HEAP0]); |
|
|
1897 | downheap (timers, timercnt, HEAP0); |
|
|
1898 | } |
|
|
1899 | else |
|
|
1900 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1901 | |
|
|
1902 | EV_FREQUENT_CHECK; |
|
|
1903 | feed_reverse (EV_A_ (W)w); |
|
|
1904 | } |
|
|
1905 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
|
|
1906 | |
|
|
1907 | feed_reverse_done (EV_A_ EV_TIMEOUT); |
|
|
1908 | } |
|
|
1909 | } |
|
|
1910 | |
|
|
1911 | #if EV_PERIODIC_ENABLE |
|
|
1912 | /* make periodics pending */ |
|
|
1913 | inline_size void |
|
|
1914 | periodics_reify (EV_P) |
|
|
1915 | { |
|
|
1916 | EV_FREQUENT_CHECK; |
|
|
1917 | |
|
|
1918 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
|
|
1919 | { |
|
|
1920 | int feed_count = 0; |
|
|
1921 | |
|
|
1922 | do |
|
|
1923 | { |
|
|
1924 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
|
|
1925 | |
|
|
1926 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
1927 | |
|
|
1928 | /* first reschedule or stop timer */ |
|
|
1929 | if (w->reschedule_cb) |
|
|
1930 | { |
|
|
1931 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
1932 | |
|
|
1933 | assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
|
|
1934 | |
|
|
1935 | ANHE_at_cache (periodics [HEAP0]); |
|
|
1936 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1937 | } |
|
|
1938 | else if (w->interval) |
|
|
1939 | { |
|
|
1940 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1941 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
1942 | /* this might happen because of floating point inexactness */ |
|
|
1943 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
1944 | { |
|
|
1945 | ev_at (w) += w->interval; |
|
|
1946 | |
|
|
1947 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
1948 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
1949 | /* has effectively asked to get triggered more often than possible */ |
|
|
1950 | if (ev_at (w) < ev_rt_now) |
|
|
1951 | ev_at (w) = ev_rt_now; |
|
|
1952 | } |
|
|
1953 | |
|
|
1954 | ANHE_at_cache (periodics [HEAP0]); |
|
|
1955 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1956 | } |
|
|
1957 | else |
|
|
1958 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1959 | |
|
|
1960 | EV_FREQUENT_CHECK; |
|
|
1961 | feed_reverse (EV_A_ (W)w); |
|
|
1962 | } |
|
|
1963 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now); |
|
|
1964 | |
|
|
1965 | feed_reverse_done (EV_A_ EV_PERIODIC); |
|
|
1966 | } |
|
|
1967 | } |
|
|
1968 | |
|
|
1969 | /* simply recalculate all periodics */ |
|
|
1970 | /* TODO: maybe ensure that at leats one event happens when jumping forward? */ |
|
|
1971 | static void noinline |
|
|
1972 | periodics_reschedule (EV_P) |
|
|
1973 | { |
|
|
1974 | int i; |
|
|
1975 | |
|
|
1976 | /* adjust periodics after time jump */ |
|
|
1977 | for (i = HEAP0; i < periodiccnt + HEAP0; ++i) |
|
|
1978 | { |
|
|
1979 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
|
|
1980 | |
|
|
1981 | if (w->reschedule_cb) |
|
|
1982 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
1983 | else if (w->interval) |
|
|
1984 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1985 | |
|
|
1986 | ANHE_at_cache (periodics [i]); |
|
|
1987 | } |
|
|
1988 | |
|
|
1989 | reheap (periodics, periodiccnt); |
|
|
1990 | } |
|
|
1991 | #endif |
|
|
1992 | |
|
|
1993 | /* adjust all timers by a given offset */ |
|
|
1994 | static void noinline |
|
|
1995 | timers_reschedule (EV_P_ ev_tstamp adjust) |
|
|
1996 | { |
|
|
1997 | int i; |
|
|
1998 | |
|
|
1999 | for (i = 0; i < timercnt; ++i) |
|
|
2000 | { |
|
|
2001 | ANHE *he = timers + i + HEAP0; |
|
|
2002 | ANHE_w (*he)->at += adjust; |
|
|
2003 | ANHE_at_cache (*he); |
|
|
2004 | } |
|
|
2005 | } |
|
|
2006 | |
|
|
2007 | /* fetch new monotonic and realtime times from the kernel */ |
|
|
2008 | /* also detetc if there was a timejump, and act accordingly */ |
|
|
2009 | inline_speed void |
|
|
2010 | time_update (EV_P_ ev_tstamp max_block) |
|
|
2011 | { |
|
|
2012 | #if EV_USE_MONOTONIC |
|
|
2013 | if (expect_true (have_monotonic)) |
|
|
2014 | { |
|
|
2015 | int i; |
|
|
2016 | ev_tstamp odiff = rtmn_diff; |
|
|
2017 | |
1301 | mn_now = get_clock (); |
2018 | mn_now = get_clock (); |
1302 | |
2019 | |
|
|
2020 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
|
|
2021 | /* interpolate in the meantime */ |
1303 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
2022 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1304 | { |
2023 | { |
1305 | ev_rt_now = rtmn_diff + mn_now; |
2024 | ev_rt_now = rtmn_diff + mn_now; |
1306 | return 0; |
2025 | return; |
1307 | } |
2026 | } |
1308 | else |
2027 | |
1309 | { |
|
|
1310 | now_floor = mn_now; |
2028 | now_floor = mn_now; |
1311 | ev_rt_now = ev_time (); |
2029 | ev_rt_now = ev_time (); |
1312 | return 1; |
|
|
1313 | } |
|
|
1314 | } |
|
|
1315 | |
2030 | |
1316 | void inline_size |
2031 | /* loop a few times, before making important decisions. |
1317 | time_update (EV_P) |
2032 | * on the choice of "4": one iteration isn't enough, |
1318 | { |
2033 | * in case we get preempted during the calls to |
1319 | int i; |
2034 | * ev_time and get_clock. a second call is almost guaranteed |
1320 | |
2035 | * to succeed in that case, though. and looping a few more times |
1321 | #if EV_USE_MONOTONIC |
2036 | * doesn't hurt either as we only do this on time-jumps or |
1322 | if (expect_true (have_monotonic)) |
2037 | * in the unlikely event of having been preempted here. |
1323 | { |
2038 | */ |
1324 | if (time_update_monotonic (EV_A)) |
2039 | for (i = 4; --i; ) |
1325 | { |
2040 | { |
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; |
2041 | rtmn_diff = ev_rt_now - mn_now; |
1339 | |
2042 | |
1340 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
2043 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
1341 | return; /* all is well */ |
2044 | return; /* all is well */ |
1342 | |
2045 | |
1343 | ev_rt_now = ev_time (); |
2046 | ev_rt_now = ev_time (); |
1344 | mn_now = get_clock (); |
2047 | mn_now = get_clock (); |
1345 | now_floor = mn_now; |
2048 | now_floor = mn_now; |
1346 | } |
2049 | } |
1347 | |
2050 | |
|
|
2051 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
2052 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1348 | # if EV_PERIODIC_ENABLE |
2053 | # if EV_PERIODIC_ENABLE |
1349 | periodics_reschedule (EV_A); |
2054 | periodics_reschedule (EV_A); |
1350 | # endif |
2055 | # endif |
1351 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1352 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1353 | } |
|
|
1354 | } |
2056 | } |
1355 | else |
2057 | else |
1356 | #endif |
2058 | #endif |
1357 | { |
2059 | { |
1358 | ev_rt_now = ev_time (); |
2060 | ev_rt_now = ev_time (); |
1359 | |
2061 | |
1360 | if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
2062 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
1361 | { |
2063 | { |
|
|
2064 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
2065 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
1362 | #if EV_PERIODIC_ENABLE |
2066 | #if EV_PERIODIC_ENABLE |
1363 | periodics_reschedule (EV_A); |
2067 | periodics_reschedule (EV_A); |
1364 | #endif |
2068 | #endif |
1365 | |
|
|
1366 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1367 | for (i = 0; i < timercnt; ++i) |
|
|
1368 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
|
|
1369 | } |
2069 | } |
1370 | |
2070 | |
1371 | mn_now = ev_rt_now; |
2071 | mn_now = ev_rt_now; |
1372 | } |
2072 | } |
1373 | } |
2073 | } |
1374 | |
2074 | |
1375 | void |
2075 | void |
1376 | ev_ref (EV_P) |
|
|
1377 | { |
|
|
1378 | ++activecnt; |
|
|
1379 | } |
|
|
1380 | |
|
|
1381 | void |
|
|
1382 | ev_unref (EV_P) |
|
|
1383 | { |
|
|
1384 | --activecnt; |
|
|
1385 | } |
|
|
1386 | |
|
|
1387 | static int loop_done; |
|
|
1388 | |
|
|
1389 | void |
|
|
1390 | ev_loop (EV_P_ int flags) |
2076 | ev_loop (EV_P_ int flags) |
1391 | { |
2077 | { |
1392 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) |
2078 | #if EV_MINIMAL < 2 |
1393 | ? EVUNLOOP_ONE |
2079 | ++loop_depth; |
1394 | : EVUNLOOP_CANCEL; |
2080 | #endif |
1395 | |
2081 | |
|
|
2082 | loop_done = EVUNLOOP_CANCEL; |
|
|
2083 | |
1396 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
2084 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
1397 | |
2085 | |
1398 | do |
2086 | do |
1399 | { |
2087 | { |
|
|
2088 | #if EV_VERIFY >= 2 |
|
|
2089 | ev_loop_verify (EV_A); |
|
|
2090 | #endif |
|
|
2091 | |
1400 | #ifndef _WIN32 |
2092 | #ifndef _WIN32 |
1401 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2093 | if (expect_false (curpid)) /* penalise the forking check even more */ |
1402 | if (expect_false (getpid () != curpid)) |
2094 | if (expect_false (getpid () != curpid)) |
1403 | { |
2095 | { |
1404 | curpid = getpid (); |
2096 | curpid = getpid (); |
… | |
… | |
1410 | /* we might have forked, so queue fork handlers */ |
2102 | /* we might have forked, so queue fork handlers */ |
1411 | if (expect_false (postfork)) |
2103 | if (expect_false (postfork)) |
1412 | if (forkcnt) |
2104 | if (forkcnt) |
1413 | { |
2105 | { |
1414 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2106 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
1415 | call_pending (EV_A); |
2107 | EV_INVOKE_PENDING; |
1416 | } |
2108 | } |
1417 | #endif |
2109 | #endif |
1418 | |
2110 | |
1419 | /* queue prepare watchers (and execute them) */ |
2111 | /* queue prepare watchers (and execute them) */ |
1420 | if (expect_false (preparecnt)) |
2112 | if (expect_false (preparecnt)) |
1421 | { |
2113 | { |
1422 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2114 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1423 | call_pending (EV_A); |
2115 | EV_INVOKE_PENDING; |
1424 | } |
2116 | } |
1425 | |
|
|
1426 | if (expect_false (!activecnt)) |
|
|
1427 | break; |
|
|
1428 | |
2117 | |
1429 | /* we might have forked, so reify kernel state if necessary */ |
2118 | /* we might have forked, so reify kernel state if necessary */ |
1430 | if (expect_false (postfork)) |
2119 | if (expect_false (postfork)) |
1431 | loop_fork (EV_A); |
2120 | loop_fork (EV_A); |
1432 | |
2121 | |
1433 | /* update fd-related kernel structures */ |
2122 | /* update fd-related kernel structures */ |
1434 | fd_reify (EV_A); |
2123 | fd_reify (EV_A); |
1435 | |
2124 | |
1436 | /* calculate blocking time */ |
2125 | /* calculate blocking time */ |
1437 | { |
2126 | { |
1438 | ev_tstamp block; |
2127 | ev_tstamp waittime = 0.; |
|
|
2128 | ev_tstamp sleeptime = 0.; |
1439 | |
2129 | |
1440 | if (expect_false (flags & EVLOOP_NONBLOCK || idleall || !activecnt)) |
2130 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
1441 | block = 0.; /* do not block at all */ |
|
|
1442 | else |
|
|
1443 | { |
2131 | { |
|
|
2132 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2133 | ev_tstamp prev_mn_now = mn_now; |
|
|
2134 | |
1444 | /* update time to cancel out callback processing overhead */ |
2135 | /* 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); |
2136 | time_update (EV_A_ 1e100); |
1448 | else |
|
|
1449 | #endif |
|
|
1450 | { |
|
|
1451 | ev_rt_now = ev_time (); |
|
|
1452 | mn_now = ev_rt_now; |
|
|
1453 | } |
|
|
1454 | |
2137 | |
1455 | block = MAX_BLOCKTIME; |
2138 | waittime = MAX_BLOCKTIME; |
1456 | |
2139 | |
1457 | if (timercnt) |
2140 | if (timercnt) |
1458 | { |
2141 | { |
1459 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
2142 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
1460 | if (block > to) block = to; |
2143 | if (waittime > to) waittime = to; |
1461 | } |
2144 | } |
1462 | |
2145 | |
1463 | #if EV_PERIODIC_ENABLE |
2146 | #if EV_PERIODIC_ENABLE |
1464 | if (periodiccnt) |
2147 | if (periodiccnt) |
1465 | { |
2148 | { |
1466 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
2149 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
1467 | if (block > to) block = to; |
2150 | if (waittime > to) waittime = to; |
1468 | } |
2151 | } |
1469 | #endif |
2152 | #endif |
1470 | |
2153 | |
|
|
2154 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
|
|
2155 | if (expect_false (waittime < timeout_blocktime)) |
|
|
2156 | waittime = timeout_blocktime; |
|
|
2157 | |
|
|
2158 | /* extra check because io_blocktime is commonly 0 */ |
1471 | if (expect_false (block < 0.)) block = 0.; |
2159 | if (expect_false (io_blocktime)) |
|
|
2160 | { |
|
|
2161 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
|
|
2162 | |
|
|
2163 | if (sleeptime > waittime - backend_fudge) |
|
|
2164 | sleeptime = waittime - backend_fudge; |
|
|
2165 | |
|
|
2166 | if (expect_true (sleeptime > 0.)) |
|
|
2167 | { |
|
|
2168 | ev_sleep (sleeptime); |
|
|
2169 | waittime -= sleeptime; |
|
|
2170 | } |
|
|
2171 | } |
1472 | } |
2172 | } |
1473 | |
2173 | |
|
|
2174 | #if EV_MINIMAL < 2 |
1474 | ++loop_count; |
2175 | ++loop_count; |
|
|
2176 | #endif |
1475 | backend_poll (EV_A_ block); |
2177 | backend_poll (EV_A_ waittime); |
|
|
2178 | |
|
|
2179 | /* update ev_rt_now, do magic */ |
|
|
2180 | time_update (EV_A_ waittime + sleeptime); |
1476 | } |
2181 | } |
1477 | |
|
|
1478 | /* update ev_rt_now, do magic */ |
|
|
1479 | time_update (EV_A); |
|
|
1480 | |
2182 | |
1481 | /* queue pending timers and reschedule them */ |
2183 | /* queue pending timers and reschedule them */ |
1482 | timers_reify (EV_A); /* relative timers called last */ |
2184 | timers_reify (EV_A); /* relative timers called last */ |
1483 | #if EV_PERIODIC_ENABLE |
2185 | #if EV_PERIODIC_ENABLE |
1484 | periodics_reify (EV_A); /* absolute timers called first */ |
2186 | periodics_reify (EV_A); /* absolute timers called first */ |
… | |
… | |
1491 | |
2193 | |
1492 | /* queue check watchers, to be executed first */ |
2194 | /* queue check watchers, to be executed first */ |
1493 | if (expect_false (checkcnt)) |
2195 | if (expect_false (checkcnt)) |
1494 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2196 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1495 | |
2197 | |
1496 | call_pending (EV_A); |
2198 | EV_INVOKE_PENDING; |
1497 | |
|
|
1498 | } |
2199 | } |
1499 | while (expect_true (activecnt && !loop_done)); |
2200 | while (expect_true ( |
|
|
2201 | activecnt |
|
|
2202 | && !loop_done |
|
|
2203 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
|
|
2204 | )); |
1500 | |
2205 | |
1501 | if (loop_done == EVUNLOOP_ONE) |
2206 | if (loop_done == EVUNLOOP_ONE) |
1502 | loop_done = EVUNLOOP_CANCEL; |
2207 | loop_done = EVUNLOOP_CANCEL; |
|
|
2208 | |
|
|
2209 | #if EV_MINIMAL < 2 |
|
|
2210 | --loop_depth; |
|
|
2211 | #endif |
1503 | } |
2212 | } |
1504 | |
2213 | |
1505 | void |
2214 | void |
1506 | ev_unloop (EV_P_ int how) |
2215 | ev_unloop (EV_P_ int how) |
1507 | { |
2216 | { |
1508 | loop_done = how; |
2217 | loop_done = how; |
1509 | } |
2218 | } |
1510 | |
2219 | |
|
|
2220 | void |
|
|
2221 | ev_ref (EV_P) |
|
|
2222 | { |
|
|
2223 | ++activecnt; |
|
|
2224 | } |
|
|
2225 | |
|
|
2226 | void |
|
|
2227 | ev_unref (EV_P) |
|
|
2228 | { |
|
|
2229 | --activecnt; |
|
|
2230 | } |
|
|
2231 | |
|
|
2232 | void |
|
|
2233 | ev_now_update (EV_P) |
|
|
2234 | { |
|
|
2235 | time_update (EV_A_ 1e100); |
|
|
2236 | } |
|
|
2237 | |
|
|
2238 | void |
|
|
2239 | ev_suspend (EV_P) |
|
|
2240 | { |
|
|
2241 | ev_now_update (EV_A); |
|
|
2242 | } |
|
|
2243 | |
|
|
2244 | void |
|
|
2245 | ev_resume (EV_P) |
|
|
2246 | { |
|
|
2247 | ev_tstamp mn_prev = mn_now; |
|
|
2248 | |
|
|
2249 | ev_now_update (EV_A); |
|
|
2250 | timers_reschedule (EV_A_ mn_now - mn_prev); |
|
|
2251 | #if EV_PERIODIC_ENABLE |
|
|
2252 | /* TODO: really do this? */ |
|
|
2253 | periodics_reschedule (EV_A); |
|
|
2254 | #endif |
|
|
2255 | } |
|
|
2256 | |
1511 | /*****************************************************************************/ |
2257 | /*****************************************************************************/ |
|
|
2258 | /* singly-linked list management, used when the expected list length is short */ |
1512 | |
2259 | |
1513 | void inline_size |
2260 | inline_size void |
1514 | wlist_add (WL *head, WL elem) |
2261 | wlist_add (WL *head, WL elem) |
1515 | { |
2262 | { |
1516 | elem->next = *head; |
2263 | elem->next = *head; |
1517 | *head = elem; |
2264 | *head = elem; |
1518 | } |
2265 | } |
1519 | |
2266 | |
1520 | void inline_size |
2267 | inline_size void |
1521 | wlist_del (WL *head, WL elem) |
2268 | wlist_del (WL *head, WL elem) |
1522 | { |
2269 | { |
1523 | while (*head) |
2270 | while (*head) |
1524 | { |
2271 | { |
1525 | if (*head == elem) |
2272 | if (*head == elem) |
… | |
… | |
1530 | |
2277 | |
1531 | head = &(*head)->next; |
2278 | head = &(*head)->next; |
1532 | } |
2279 | } |
1533 | } |
2280 | } |
1534 | |
2281 | |
1535 | void inline_speed |
2282 | /* internal, faster, version of ev_clear_pending */ |
|
|
2283 | inline_speed void |
1536 | clear_pending (EV_P_ W w) |
2284 | clear_pending (EV_P_ W w) |
1537 | { |
2285 | { |
1538 | if (w->pending) |
2286 | if (w->pending) |
1539 | { |
2287 | { |
1540 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
2288 | pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w; |
1541 | w->pending = 0; |
2289 | w->pending = 0; |
1542 | } |
2290 | } |
1543 | } |
2291 | } |
1544 | |
2292 | |
1545 | int |
2293 | int |
… | |
… | |
1549 | int pending = w_->pending; |
2297 | int pending = w_->pending; |
1550 | |
2298 | |
1551 | if (expect_true (pending)) |
2299 | if (expect_true (pending)) |
1552 | { |
2300 | { |
1553 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
2301 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
2302 | p->w = (W)&pending_w; |
1554 | w_->pending = 0; |
2303 | w_->pending = 0; |
1555 | p->w = 0; |
|
|
1556 | return p->events; |
2304 | return p->events; |
1557 | } |
2305 | } |
1558 | else |
2306 | else |
1559 | return 0; |
2307 | return 0; |
1560 | } |
2308 | } |
1561 | |
2309 | |
1562 | void inline_size |
2310 | inline_size void |
1563 | pri_adjust (EV_P_ W w) |
2311 | pri_adjust (EV_P_ W w) |
1564 | { |
2312 | { |
1565 | int pri = w->priority; |
2313 | int pri = ev_priority (w); |
1566 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2314 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
1567 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2315 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
1568 | w->priority = pri; |
2316 | ev_set_priority (w, pri); |
1569 | } |
2317 | } |
1570 | |
2318 | |
1571 | void inline_speed |
2319 | inline_speed void |
1572 | ev_start (EV_P_ W w, int active) |
2320 | ev_start (EV_P_ W w, int active) |
1573 | { |
2321 | { |
1574 | pri_adjust (EV_A_ w); |
2322 | pri_adjust (EV_A_ w); |
1575 | w->active = active; |
2323 | w->active = active; |
1576 | ev_ref (EV_A); |
2324 | ev_ref (EV_A); |
1577 | } |
2325 | } |
1578 | |
2326 | |
1579 | void inline_size |
2327 | inline_size void |
1580 | ev_stop (EV_P_ W w) |
2328 | ev_stop (EV_P_ W w) |
1581 | { |
2329 | { |
1582 | ev_unref (EV_A); |
2330 | ev_unref (EV_A); |
1583 | w->active = 0; |
2331 | w->active = 0; |
1584 | } |
2332 | } |
… | |
… | |
1591 | int fd = w->fd; |
2339 | int fd = w->fd; |
1592 | |
2340 | |
1593 | if (expect_false (ev_is_active (w))) |
2341 | if (expect_false (ev_is_active (w))) |
1594 | return; |
2342 | return; |
1595 | |
2343 | |
1596 | assert (("ev_io_start called with negative fd", fd >= 0)); |
2344 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
|
|
2345 | assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
|
|
2346 | |
|
|
2347 | EV_FREQUENT_CHECK; |
1597 | |
2348 | |
1598 | ev_start (EV_A_ (W)w, 1); |
2349 | ev_start (EV_A_ (W)w, 1); |
1599 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
2350 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
1600 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
2351 | wlist_add (&anfds[fd].head, (WL)w); |
1601 | |
2352 | |
1602 | fd_change (EV_A_ fd); |
2353 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | 1); |
|
|
2354 | w->events &= ~EV__IOFDSET; |
|
|
2355 | |
|
|
2356 | EV_FREQUENT_CHECK; |
1603 | } |
2357 | } |
1604 | |
2358 | |
1605 | void noinline |
2359 | void noinline |
1606 | ev_io_stop (EV_P_ ev_io *w) |
2360 | ev_io_stop (EV_P_ ev_io *w) |
1607 | { |
2361 | { |
1608 | clear_pending (EV_A_ (W)w); |
2362 | clear_pending (EV_A_ (W)w); |
1609 | if (expect_false (!ev_is_active (w))) |
2363 | if (expect_false (!ev_is_active (w))) |
1610 | return; |
2364 | return; |
1611 | |
2365 | |
1612 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2366 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
1613 | |
2367 | |
|
|
2368 | EV_FREQUENT_CHECK; |
|
|
2369 | |
1614 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
2370 | wlist_del (&anfds[w->fd].head, (WL)w); |
1615 | ev_stop (EV_A_ (W)w); |
2371 | ev_stop (EV_A_ (W)w); |
1616 | |
2372 | |
1617 | fd_change (EV_A_ w->fd); |
2373 | fd_change (EV_A_ w->fd, 1); |
|
|
2374 | |
|
|
2375 | EV_FREQUENT_CHECK; |
1618 | } |
2376 | } |
1619 | |
2377 | |
1620 | void noinline |
2378 | void noinline |
1621 | ev_timer_start (EV_P_ ev_timer *w) |
2379 | ev_timer_start (EV_P_ ev_timer *w) |
1622 | { |
2380 | { |
1623 | if (expect_false (ev_is_active (w))) |
2381 | if (expect_false (ev_is_active (w))) |
1624 | return; |
2382 | return; |
1625 | |
2383 | |
1626 | ((WT)w)->at += mn_now; |
2384 | ev_at (w) += mn_now; |
1627 | |
2385 | |
1628 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2386 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1629 | |
2387 | |
|
|
2388 | EV_FREQUENT_CHECK; |
|
|
2389 | |
|
|
2390 | ++timercnt; |
1630 | ev_start (EV_A_ (W)w, ++timercnt); |
2391 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
1631 | array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2); |
2392 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
1632 | timers [timercnt - 1] = w; |
2393 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
1633 | upheap ((WT *)timers, timercnt - 1); |
2394 | ANHE_at_cache (timers [ev_active (w)]); |
|
|
2395 | upheap (timers, ev_active (w)); |
1634 | |
2396 | |
|
|
2397 | EV_FREQUENT_CHECK; |
|
|
2398 | |
1635 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
2399 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
1636 | } |
2400 | } |
1637 | |
2401 | |
1638 | void noinline |
2402 | void noinline |
1639 | ev_timer_stop (EV_P_ ev_timer *w) |
2403 | ev_timer_stop (EV_P_ ev_timer *w) |
1640 | { |
2404 | { |
1641 | clear_pending (EV_A_ (W)w); |
2405 | clear_pending (EV_A_ (W)w); |
1642 | if (expect_false (!ev_is_active (w))) |
2406 | if (expect_false (!ev_is_active (w))) |
1643 | return; |
2407 | return; |
1644 | |
2408 | |
1645 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
2409 | EV_FREQUENT_CHECK; |
1646 | |
2410 | |
1647 | { |
2411 | { |
1648 | int active = ((W)w)->active; |
2412 | int active = ev_active (w); |
1649 | |
2413 | |
|
|
2414 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
|
|
2415 | |
|
|
2416 | --timercnt; |
|
|
2417 | |
1650 | if (expect_true (--active < --timercnt)) |
2418 | if (expect_true (active < timercnt + HEAP0)) |
1651 | { |
2419 | { |
1652 | timers [active] = timers [timercnt]; |
2420 | timers [active] = timers [timercnt + HEAP0]; |
1653 | adjustheap ((WT *)timers, timercnt, active); |
2421 | adjustheap (timers, timercnt, active); |
1654 | } |
2422 | } |
1655 | } |
2423 | } |
1656 | |
2424 | |
1657 | ((WT)w)->at -= mn_now; |
2425 | EV_FREQUENT_CHECK; |
|
|
2426 | |
|
|
2427 | ev_at (w) -= mn_now; |
1658 | |
2428 | |
1659 | ev_stop (EV_A_ (W)w); |
2429 | ev_stop (EV_A_ (W)w); |
1660 | } |
2430 | } |
1661 | |
2431 | |
1662 | void noinline |
2432 | void noinline |
1663 | ev_timer_again (EV_P_ ev_timer *w) |
2433 | ev_timer_again (EV_P_ ev_timer *w) |
1664 | { |
2434 | { |
|
|
2435 | EV_FREQUENT_CHECK; |
|
|
2436 | |
1665 | if (ev_is_active (w)) |
2437 | if (ev_is_active (w)) |
1666 | { |
2438 | { |
1667 | if (w->repeat) |
2439 | if (w->repeat) |
1668 | { |
2440 | { |
1669 | ((WT)w)->at = mn_now + w->repeat; |
2441 | ev_at (w) = mn_now + w->repeat; |
|
|
2442 | ANHE_at_cache (timers [ev_active (w)]); |
1670 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
2443 | adjustheap (timers, timercnt, ev_active (w)); |
1671 | } |
2444 | } |
1672 | else |
2445 | else |
1673 | ev_timer_stop (EV_A_ w); |
2446 | ev_timer_stop (EV_A_ w); |
1674 | } |
2447 | } |
1675 | else if (w->repeat) |
2448 | else if (w->repeat) |
1676 | { |
2449 | { |
1677 | w->at = w->repeat; |
2450 | ev_at (w) = w->repeat; |
1678 | ev_timer_start (EV_A_ w); |
2451 | ev_timer_start (EV_A_ w); |
1679 | } |
2452 | } |
|
|
2453 | |
|
|
2454 | EV_FREQUENT_CHECK; |
1680 | } |
2455 | } |
1681 | |
2456 | |
1682 | #if EV_PERIODIC_ENABLE |
2457 | #if EV_PERIODIC_ENABLE |
1683 | void noinline |
2458 | void noinline |
1684 | ev_periodic_start (EV_P_ ev_periodic *w) |
2459 | ev_periodic_start (EV_P_ ev_periodic *w) |
1685 | { |
2460 | { |
1686 | if (expect_false (ev_is_active (w))) |
2461 | if (expect_false (ev_is_active (w))) |
1687 | return; |
2462 | return; |
1688 | |
2463 | |
1689 | if (w->reschedule_cb) |
2464 | if (w->reschedule_cb) |
1690 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
2465 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1691 | else if (w->interval) |
2466 | else if (w->interval) |
1692 | { |
2467 | { |
1693 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2468 | 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 */ |
2469 | /* 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; |
2470 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1696 | } |
2471 | } |
1697 | else |
2472 | else |
1698 | ((WT)w)->at = w->offset; |
2473 | ev_at (w) = w->offset; |
1699 | |
2474 | |
|
|
2475 | EV_FREQUENT_CHECK; |
|
|
2476 | |
|
|
2477 | ++periodiccnt; |
1700 | ev_start (EV_A_ (W)w, ++periodiccnt); |
2478 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
1701 | array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); |
2479 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
1702 | periodics [periodiccnt - 1] = w; |
2480 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
1703 | upheap ((WT *)periodics, periodiccnt - 1); |
2481 | ANHE_at_cache (periodics [ev_active (w)]); |
|
|
2482 | upheap (periodics, ev_active (w)); |
1704 | |
2483 | |
|
|
2484 | EV_FREQUENT_CHECK; |
|
|
2485 | |
1705 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
2486 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
1706 | } |
2487 | } |
1707 | |
2488 | |
1708 | void noinline |
2489 | void noinline |
1709 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2490 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1710 | { |
2491 | { |
1711 | clear_pending (EV_A_ (W)w); |
2492 | clear_pending (EV_A_ (W)w); |
1712 | if (expect_false (!ev_is_active (w))) |
2493 | if (expect_false (!ev_is_active (w))) |
1713 | return; |
2494 | return; |
1714 | |
2495 | |
1715 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
2496 | EV_FREQUENT_CHECK; |
1716 | |
2497 | |
1717 | { |
2498 | { |
1718 | int active = ((W)w)->active; |
2499 | int active = ev_active (w); |
1719 | |
2500 | |
|
|
2501 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
|
|
2502 | |
|
|
2503 | --periodiccnt; |
|
|
2504 | |
1720 | if (expect_true (--active < --periodiccnt)) |
2505 | if (expect_true (active < periodiccnt + HEAP0)) |
1721 | { |
2506 | { |
1722 | periodics [active] = periodics [periodiccnt]; |
2507 | periodics [active] = periodics [periodiccnt + HEAP0]; |
1723 | adjustheap ((WT *)periodics, periodiccnt, active); |
2508 | adjustheap (periodics, periodiccnt, active); |
1724 | } |
2509 | } |
1725 | } |
2510 | } |
|
|
2511 | |
|
|
2512 | EV_FREQUENT_CHECK; |
1726 | |
2513 | |
1727 | ev_stop (EV_A_ (W)w); |
2514 | ev_stop (EV_A_ (W)w); |
1728 | } |
2515 | } |
1729 | |
2516 | |
1730 | void noinline |
2517 | void noinline |
… | |
… | |
1742 | |
2529 | |
1743 | void noinline |
2530 | void noinline |
1744 | ev_signal_start (EV_P_ ev_signal *w) |
2531 | ev_signal_start (EV_P_ ev_signal *w) |
1745 | { |
2532 | { |
1746 | #if EV_MULTIPLICITY |
2533 | #if EV_MULTIPLICITY |
1747 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2534 | assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1748 | #endif |
2535 | #endif |
1749 | if (expect_false (ev_is_active (w))) |
2536 | if (expect_false (ev_is_active (w))) |
1750 | return; |
2537 | return; |
1751 | |
2538 | |
1752 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2539 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); |
|
|
2540 | |
|
|
2541 | evpipe_init (EV_A); |
|
|
2542 | |
|
|
2543 | EV_FREQUENT_CHECK; |
|
|
2544 | |
|
|
2545 | { |
|
|
2546 | #ifndef _WIN32 |
|
|
2547 | sigset_t full, prev; |
|
|
2548 | sigfillset (&full); |
|
|
2549 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2550 | #endif |
|
|
2551 | |
|
|
2552 | array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); |
|
|
2553 | |
|
|
2554 | #ifndef _WIN32 |
|
|
2555 | sigprocmask (SIG_SETMASK, &prev, 0); |
|
|
2556 | #endif |
|
|
2557 | } |
1753 | |
2558 | |
1754 | ev_start (EV_A_ (W)w, 1); |
2559 | 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); |
2560 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
1757 | |
2561 | |
1758 | if (!((WL)w)->next) |
2562 | if (!((WL)w)->next) |
1759 | { |
2563 | { |
1760 | #if _WIN32 |
2564 | #if _WIN32 |
1761 | signal (w->signum, sighandler); |
2565 | signal (w->signum, ev_sighandler); |
1762 | #else |
2566 | #else |
1763 | struct sigaction sa; |
2567 | struct sigaction sa; |
1764 | sa.sa_handler = sighandler; |
2568 | sa.sa_handler = ev_sighandler; |
1765 | sigfillset (&sa.sa_mask); |
2569 | sigfillset (&sa.sa_mask); |
1766 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2570 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1767 | sigaction (w->signum, &sa, 0); |
2571 | sigaction (w->signum, &sa, 0); |
1768 | #endif |
2572 | #endif |
1769 | } |
2573 | } |
|
|
2574 | |
|
|
2575 | EV_FREQUENT_CHECK; |
1770 | } |
2576 | } |
1771 | |
2577 | |
1772 | void noinline |
2578 | void noinline |
1773 | ev_signal_stop (EV_P_ ev_signal *w) |
2579 | ev_signal_stop (EV_P_ ev_signal *w) |
1774 | { |
2580 | { |
1775 | clear_pending (EV_A_ (W)w); |
2581 | clear_pending (EV_A_ (W)w); |
1776 | if (expect_false (!ev_is_active (w))) |
2582 | if (expect_false (!ev_is_active (w))) |
1777 | return; |
2583 | return; |
1778 | |
2584 | |
|
|
2585 | EV_FREQUENT_CHECK; |
|
|
2586 | |
1779 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
2587 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
1780 | ev_stop (EV_A_ (W)w); |
2588 | ev_stop (EV_A_ (W)w); |
1781 | |
2589 | |
1782 | if (!signals [w->signum - 1].head) |
2590 | if (!signals [w->signum - 1].head) |
1783 | signal (w->signum, SIG_DFL); |
2591 | signal (w->signum, SIG_DFL); |
|
|
2592 | |
|
|
2593 | EV_FREQUENT_CHECK; |
1784 | } |
2594 | } |
1785 | |
2595 | |
1786 | void |
2596 | void |
1787 | ev_child_start (EV_P_ ev_child *w) |
2597 | ev_child_start (EV_P_ ev_child *w) |
1788 | { |
2598 | { |
1789 | #if EV_MULTIPLICITY |
2599 | #if EV_MULTIPLICITY |
1790 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2600 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1791 | #endif |
2601 | #endif |
1792 | if (expect_false (ev_is_active (w))) |
2602 | if (expect_false (ev_is_active (w))) |
1793 | return; |
2603 | return; |
1794 | |
2604 | |
|
|
2605 | EV_FREQUENT_CHECK; |
|
|
2606 | |
1795 | ev_start (EV_A_ (W)w, 1); |
2607 | ev_start (EV_A_ (W)w, 1); |
1796 | wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2608 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
|
|
2609 | |
|
|
2610 | EV_FREQUENT_CHECK; |
1797 | } |
2611 | } |
1798 | |
2612 | |
1799 | void |
2613 | void |
1800 | ev_child_stop (EV_P_ ev_child *w) |
2614 | ev_child_stop (EV_P_ ev_child *w) |
1801 | { |
2615 | { |
1802 | clear_pending (EV_A_ (W)w); |
2616 | clear_pending (EV_A_ (W)w); |
1803 | if (expect_false (!ev_is_active (w))) |
2617 | if (expect_false (!ev_is_active (w))) |
1804 | return; |
2618 | return; |
1805 | |
2619 | |
|
|
2620 | EV_FREQUENT_CHECK; |
|
|
2621 | |
1806 | wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2622 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1807 | ev_stop (EV_A_ (W)w); |
2623 | ev_stop (EV_A_ (W)w); |
|
|
2624 | |
|
|
2625 | EV_FREQUENT_CHECK; |
1808 | } |
2626 | } |
1809 | |
2627 | |
1810 | #if EV_STAT_ENABLE |
2628 | #if EV_STAT_ENABLE |
1811 | |
2629 | |
1812 | # ifdef _WIN32 |
2630 | # ifdef _WIN32 |
1813 | # undef lstat |
2631 | # undef lstat |
1814 | # define lstat(a,b) _stati64 (a,b) |
2632 | # define lstat(a,b) _stati64 (a,b) |
1815 | # endif |
2633 | # endif |
1816 | |
2634 | |
1817 | #define DEF_STAT_INTERVAL 5.0074891 |
2635 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
2636 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
1818 | #define MIN_STAT_INTERVAL 0.1074891 |
2637 | #define MIN_STAT_INTERVAL 0.1074891 |
1819 | |
2638 | |
1820 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2639 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
1821 | |
2640 | |
1822 | #if EV_USE_INOTIFY |
2641 | #if EV_USE_INOTIFY |
1823 | # define EV_INOTIFY_BUFSIZE 8192 |
2642 | # define EV_INOTIFY_BUFSIZE 8192 |
… | |
… | |
1827 | { |
2646 | { |
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); |
2647 | 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 | |
2648 | |
1830 | if (w->wd < 0) |
2649 | if (w->wd < 0) |
1831 | { |
2650 | { |
|
|
2651 | 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 */ |
2652 | ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
1833 | |
2653 | |
1834 | /* monitor some parent directory for speedup hints */ |
2654 | /* monitor some parent directory for speedup hints */ |
|
|
2655 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
|
|
2656 | /* but an efficiency issue only */ |
1835 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2657 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
1836 | { |
2658 | { |
1837 | char path [4096]; |
2659 | char path [4096]; |
1838 | strcpy (path, w->path); |
2660 | strcpy (path, w->path); |
1839 | |
2661 | |
… | |
… | |
1842 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2664 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
1843 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2665 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
1844 | |
2666 | |
1845 | char *pend = strrchr (path, '/'); |
2667 | char *pend = strrchr (path, '/'); |
1846 | |
2668 | |
1847 | if (!pend) |
2669 | if (!pend || pend == path) |
1848 | break; /* whoops, no '/', complain to your admin */ |
2670 | break; |
1849 | |
2671 | |
1850 | *pend = 0; |
2672 | *pend = 0; |
1851 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2673 | w->wd = inotify_add_watch (fs_fd, path, mask); |
1852 | } |
2674 | } |
1853 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2675 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
1854 | } |
2676 | } |
1855 | } |
2677 | } |
1856 | else |
|
|
1857 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
1858 | |
2678 | |
1859 | if (w->wd >= 0) |
2679 | if (w->wd >= 0) |
|
|
2680 | { |
1860 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2681 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
2682 | |
|
|
2683 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
2684 | /* unless the filesystem it known to be local, we therefore still poll */ |
|
|
2685 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2686 | struct statfs sfs; |
|
|
2687 | |
|
|
2688 | if (fs_2625 && !statfs (w->path, &sfs)) |
|
|
2689 | if (sfs.f_type == 0x1373 /* devfs */ |
|
|
2690 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2691 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2692 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2693 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2694 | || sfs.f_type == 0x58465342 /* xfs */) |
|
|
2695 | return; |
|
|
2696 | |
|
|
2697 | w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2698 | ev_timer_again (EV_A_ &w->timer); |
|
|
2699 | } |
1861 | } |
2700 | } |
1862 | |
2701 | |
1863 | static void noinline |
2702 | static void noinline |
1864 | infy_del (EV_P_ ev_stat *w) |
2703 | infy_del (EV_P_ ev_stat *w) |
1865 | { |
2704 | { |
… | |
… | |
1879 | |
2718 | |
1880 | static void noinline |
2719 | static void noinline |
1881 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2720 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
1882 | { |
2721 | { |
1883 | if (slot < 0) |
2722 | if (slot < 0) |
1884 | /* overflow, need to check for all hahs slots */ |
2723 | /* overflow, need to check for all hash slots */ |
1885 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2724 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
1886 | infy_wd (EV_A_ slot, wd, ev); |
2725 | infy_wd (EV_A_ slot, wd, ev); |
1887 | else |
2726 | else |
1888 | { |
2727 | { |
1889 | WL w_; |
2728 | WL w_; |
… | |
… | |
1895 | |
2734 | |
1896 | if (w->wd == wd || wd == -1) |
2735 | if (w->wd == wd || wd == -1) |
1897 | { |
2736 | { |
1898 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2737 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
1899 | { |
2738 | { |
|
|
2739 | wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
1900 | w->wd = -1; |
2740 | w->wd = -1; |
1901 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2741 | infy_add (EV_A_ w); /* re-add, no matter what */ |
1902 | } |
2742 | } |
1903 | |
2743 | |
1904 | stat_timer_cb (EV_A_ &w->timer, 0); |
2744 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
1917 | |
2757 | |
1918 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
2758 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
1919 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
2759 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
1920 | } |
2760 | } |
1921 | |
2761 | |
1922 | void inline_size |
2762 | inline_size void |
|
|
2763 | check_2625 (EV_P) |
|
|
2764 | { |
|
|
2765 | /* kernels < 2.6.25 are borked |
|
|
2766 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
|
|
2767 | */ |
|
|
2768 | struct utsname buf; |
|
|
2769 | int major, minor, micro; |
|
|
2770 | |
|
|
2771 | if (uname (&buf)) |
|
|
2772 | return; |
|
|
2773 | |
|
|
2774 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
|
|
2775 | return; |
|
|
2776 | |
|
|
2777 | if (major < 2 |
|
|
2778 | || (major == 2 && minor < 6) |
|
|
2779 | || (major == 2 && minor == 6 && micro < 25)) |
|
|
2780 | return; |
|
|
2781 | |
|
|
2782 | fs_2625 = 1; |
|
|
2783 | } |
|
|
2784 | |
|
|
2785 | inline_size void |
1923 | infy_init (EV_P) |
2786 | infy_init (EV_P) |
1924 | { |
2787 | { |
1925 | if (fs_fd != -2) |
2788 | if (fs_fd != -2) |
1926 | return; |
2789 | return; |
|
|
2790 | |
|
|
2791 | fs_fd = -1; |
|
|
2792 | |
|
|
2793 | check_2625 (EV_A); |
1927 | |
2794 | |
1928 | fs_fd = inotify_init (); |
2795 | fs_fd = inotify_init (); |
1929 | |
2796 | |
1930 | if (fs_fd >= 0) |
2797 | if (fs_fd >= 0) |
1931 | { |
2798 | { |
… | |
… | |
1933 | ev_set_priority (&fs_w, EV_MAXPRI); |
2800 | ev_set_priority (&fs_w, EV_MAXPRI); |
1934 | ev_io_start (EV_A_ &fs_w); |
2801 | ev_io_start (EV_A_ &fs_w); |
1935 | } |
2802 | } |
1936 | } |
2803 | } |
1937 | |
2804 | |
1938 | void inline_size |
2805 | inline_size void |
1939 | infy_fork (EV_P) |
2806 | infy_fork (EV_P) |
1940 | { |
2807 | { |
1941 | int slot; |
2808 | int slot; |
1942 | |
2809 | |
1943 | if (fs_fd < 0) |
2810 | if (fs_fd < 0) |
… | |
… | |
1959 | w->wd = -1; |
2826 | w->wd = -1; |
1960 | |
2827 | |
1961 | if (fs_fd >= 0) |
2828 | if (fs_fd >= 0) |
1962 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2829 | infy_add (EV_A_ w); /* re-add, no matter what */ |
1963 | else |
2830 | else |
1964 | ev_timer_start (EV_A_ &w->timer); |
2831 | ev_timer_again (EV_A_ &w->timer); |
1965 | } |
2832 | } |
1966 | |
|
|
1967 | } |
2833 | } |
1968 | } |
2834 | } |
1969 | |
2835 | |
|
|
2836 | #endif |
|
|
2837 | |
|
|
2838 | #ifdef _WIN32 |
|
|
2839 | # define EV_LSTAT(p,b) _stati64 (p, b) |
|
|
2840 | #else |
|
|
2841 | # define EV_LSTAT(p,b) lstat (p, b) |
1970 | #endif |
2842 | #endif |
1971 | |
2843 | |
1972 | void |
2844 | void |
1973 | ev_stat_stat (EV_P_ ev_stat *w) |
2845 | ev_stat_stat (EV_P_ ev_stat *w) |
1974 | { |
2846 | { |
… | |
… | |
2001 | || w->prev.st_atime != w->attr.st_atime |
2873 | || w->prev.st_atime != w->attr.st_atime |
2002 | || w->prev.st_mtime != w->attr.st_mtime |
2874 | || w->prev.st_mtime != w->attr.st_mtime |
2003 | || w->prev.st_ctime != w->attr.st_ctime |
2875 | || w->prev.st_ctime != w->attr.st_ctime |
2004 | ) { |
2876 | ) { |
2005 | #if EV_USE_INOTIFY |
2877 | #if EV_USE_INOTIFY |
|
|
2878 | if (fs_fd >= 0) |
|
|
2879 | { |
2006 | infy_del (EV_A_ w); |
2880 | infy_del (EV_A_ w); |
2007 | infy_add (EV_A_ w); |
2881 | infy_add (EV_A_ w); |
2008 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
2882 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
2883 | } |
2009 | #endif |
2884 | #endif |
2010 | |
2885 | |
2011 | ev_feed_event (EV_A_ w, EV_STAT); |
2886 | ev_feed_event (EV_A_ w, EV_STAT); |
2012 | } |
2887 | } |
2013 | } |
2888 | } |
… | |
… | |
2016 | ev_stat_start (EV_P_ ev_stat *w) |
2891 | ev_stat_start (EV_P_ ev_stat *w) |
2017 | { |
2892 | { |
2018 | if (expect_false (ev_is_active (w))) |
2893 | if (expect_false (ev_is_active (w))) |
2019 | return; |
2894 | return; |
2020 | |
2895 | |
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); |
2896 | ev_stat_stat (EV_A_ w); |
2026 | |
2897 | |
|
|
2898 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
2027 | if (w->interval < MIN_STAT_INTERVAL) |
2899 | w->interval = MIN_STAT_INTERVAL; |
2028 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2029 | |
2900 | |
2030 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
2901 | 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)); |
2902 | ev_set_priority (&w->timer, ev_priority (w)); |
2032 | |
2903 | |
2033 | #if EV_USE_INOTIFY |
2904 | #if EV_USE_INOTIFY |
2034 | infy_init (EV_A); |
2905 | infy_init (EV_A); |
2035 | |
2906 | |
2036 | if (fs_fd >= 0) |
2907 | if (fs_fd >= 0) |
2037 | infy_add (EV_A_ w); |
2908 | infy_add (EV_A_ w); |
2038 | else |
2909 | else |
2039 | #endif |
2910 | #endif |
2040 | ev_timer_start (EV_A_ &w->timer); |
2911 | ev_timer_again (EV_A_ &w->timer); |
2041 | |
2912 | |
2042 | ev_start (EV_A_ (W)w, 1); |
2913 | ev_start (EV_A_ (W)w, 1); |
|
|
2914 | |
|
|
2915 | EV_FREQUENT_CHECK; |
2043 | } |
2916 | } |
2044 | |
2917 | |
2045 | void |
2918 | void |
2046 | ev_stat_stop (EV_P_ ev_stat *w) |
2919 | ev_stat_stop (EV_P_ ev_stat *w) |
2047 | { |
2920 | { |
2048 | clear_pending (EV_A_ (W)w); |
2921 | clear_pending (EV_A_ (W)w); |
2049 | if (expect_false (!ev_is_active (w))) |
2922 | if (expect_false (!ev_is_active (w))) |
2050 | return; |
2923 | return; |
2051 | |
2924 | |
|
|
2925 | EV_FREQUENT_CHECK; |
|
|
2926 | |
2052 | #if EV_USE_INOTIFY |
2927 | #if EV_USE_INOTIFY |
2053 | infy_del (EV_A_ w); |
2928 | infy_del (EV_A_ w); |
2054 | #endif |
2929 | #endif |
2055 | ev_timer_stop (EV_A_ &w->timer); |
2930 | ev_timer_stop (EV_A_ &w->timer); |
2056 | |
2931 | |
2057 | ev_stop (EV_A_ (W)w); |
2932 | ev_stop (EV_A_ (W)w); |
|
|
2933 | |
|
|
2934 | EV_FREQUENT_CHECK; |
2058 | } |
2935 | } |
2059 | #endif |
2936 | #endif |
2060 | |
2937 | |
2061 | #if EV_IDLE_ENABLE |
2938 | #if EV_IDLE_ENABLE |
2062 | void |
2939 | void |
… | |
… | |
2064 | { |
2941 | { |
2065 | if (expect_false (ev_is_active (w))) |
2942 | if (expect_false (ev_is_active (w))) |
2066 | return; |
2943 | return; |
2067 | |
2944 | |
2068 | pri_adjust (EV_A_ (W)w); |
2945 | pri_adjust (EV_A_ (W)w); |
|
|
2946 | |
|
|
2947 | EV_FREQUENT_CHECK; |
2069 | |
2948 | |
2070 | { |
2949 | { |
2071 | int active = ++idlecnt [ABSPRI (w)]; |
2950 | int active = ++idlecnt [ABSPRI (w)]; |
2072 | |
2951 | |
2073 | ++idleall; |
2952 | ++idleall; |
2074 | ev_start (EV_A_ (W)w, active); |
2953 | ev_start (EV_A_ (W)w, active); |
2075 | |
2954 | |
2076 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
2955 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
2077 | idles [ABSPRI (w)][active - 1] = w; |
2956 | idles [ABSPRI (w)][active - 1] = w; |
2078 | } |
2957 | } |
|
|
2958 | |
|
|
2959 | EV_FREQUENT_CHECK; |
2079 | } |
2960 | } |
2080 | |
2961 | |
2081 | void |
2962 | void |
2082 | ev_idle_stop (EV_P_ ev_idle *w) |
2963 | ev_idle_stop (EV_P_ ev_idle *w) |
2083 | { |
2964 | { |
2084 | clear_pending (EV_A_ (W)w); |
2965 | clear_pending (EV_A_ (W)w); |
2085 | if (expect_false (!ev_is_active (w))) |
2966 | if (expect_false (!ev_is_active (w))) |
2086 | return; |
2967 | return; |
2087 | |
2968 | |
|
|
2969 | EV_FREQUENT_CHECK; |
|
|
2970 | |
2088 | { |
2971 | { |
2089 | int active = ((W)w)->active; |
2972 | int active = ev_active (w); |
2090 | |
2973 | |
2091 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2974 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2092 | ((W)idles [ABSPRI (w)][active - 1])->active = active; |
2975 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
2093 | |
2976 | |
2094 | ev_stop (EV_A_ (W)w); |
2977 | ev_stop (EV_A_ (W)w); |
2095 | --idleall; |
2978 | --idleall; |
2096 | } |
2979 | } |
|
|
2980 | |
|
|
2981 | EV_FREQUENT_CHECK; |
2097 | } |
2982 | } |
2098 | #endif |
2983 | #endif |
2099 | |
2984 | |
2100 | void |
2985 | void |
2101 | ev_prepare_start (EV_P_ ev_prepare *w) |
2986 | ev_prepare_start (EV_P_ ev_prepare *w) |
2102 | { |
2987 | { |
2103 | if (expect_false (ev_is_active (w))) |
2988 | if (expect_false (ev_is_active (w))) |
2104 | return; |
2989 | return; |
|
|
2990 | |
|
|
2991 | EV_FREQUENT_CHECK; |
2105 | |
2992 | |
2106 | ev_start (EV_A_ (W)w, ++preparecnt); |
2993 | ev_start (EV_A_ (W)w, ++preparecnt); |
2107 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
2994 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
2108 | prepares [preparecnt - 1] = w; |
2995 | prepares [preparecnt - 1] = w; |
|
|
2996 | |
|
|
2997 | EV_FREQUENT_CHECK; |
2109 | } |
2998 | } |
2110 | |
2999 | |
2111 | void |
3000 | void |
2112 | ev_prepare_stop (EV_P_ ev_prepare *w) |
3001 | ev_prepare_stop (EV_P_ ev_prepare *w) |
2113 | { |
3002 | { |
2114 | clear_pending (EV_A_ (W)w); |
3003 | clear_pending (EV_A_ (W)w); |
2115 | if (expect_false (!ev_is_active (w))) |
3004 | if (expect_false (!ev_is_active (w))) |
2116 | return; |
3005 | return; |
2117 | |
3006 | |
|
|
3007 | EV_FREQUENT_CHECK; |
|
|
3008 | |
2118 | { |
3009 | { |
2119 | int active = ((W)w)->active; |
3010 | int active = ev_active (w); |
|
|
3011 | |
2120 | prepares [active - 1] = prepares [--preparecnt]; |
3012 | prepares [active - 1] = prepares [--preparecnt]; |
2121 | ((W)prepares [active - 1])->active = active; |
3013 | ev_active (prepares [active - 1]) = active; |
2122 | } |
3014 | } |
2123 | |
3015 | |
2124 | ev_stop (EV_A_ (W)w); |
3016 | ev_stop (EV_A_ (W)w); |
|
|
3017 | |
|
|
3018 | EV_FREQUENT_CHECK; |
2125 | } |
3019 | } |
2126 | |
3020 | |
2127 | void |
3021 | void |
2128 | ev_check_start (EV_P_ ev_check *w) |
3022 | ev_check_start (EV_P_ ev_check *w) |
2129 | { |
3023 | { |
2130 | if (expect_false (ev_is_active (w))) |
3024 | if (expect_false (ev_is_active (w))) |
2131 | return; |
3025 | return; |
|
|
3026 | |
|
|
3027 | EV_FREQUENT_CHECK; |
2132 | |
3028 | |
2133 | ev_start (EV_A_ (W)w, ++checkcnt); |
3029 | ev_start (EV_A_ (W)w, ++checkcnt); |
2134 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
3030 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
2135 | checks [checkcnt - 1] = w; |
3031 | checks [checkcnt - 1] = w; |
|
|
3032 | |
|
|
3033 | EV_FREQUENT_CHECK; |
2136 | } |
3034 | } |
2137 | |
3035 | |
2138 | void |
3036 | void |
2139 | ev_check_stop (EV_P_ ev_check *w) |
3037 | ev_check_stop (EV_P_ ev_check *w) |
2140 | { |
3038 | { |
2141 | clear_pending (EV_A_ (W)w); |
3039 | clear_pending (EV_A_ (W)w); |
2142 | if (expect_false (!ev_is_active (w))) |
3040 | if (expect_false (!ev_is_active (w))) |
2143 | return; |
3041 | return; |
2144 | |
3042 | |
|
|
3043 | EV_FREQUENT_CHECK; |
|
|
3044 | |
2145 | { |
3045 | { |
2146 | int active = ((W)w)->active; |
3046 | int active = ev_active (w); |
|
|
3047 | |
2147 | checks [active - 1] = checks [--checkcnt]; |
3048 | checks [active - 1] = checks [--checkcnt]; |
2148 | ((W)checks [active - 1])->active = active; |
3049 | ev_active (checks [active - 1]) = active; |
2149 | } |
3050 | } |
2150 | |
3051 | |
2151 | ev_stop (EV_A_ (W)w); |
3052 | ev_stop (EV_A_ (W)w); |
|
|
3053 | |
|
|
3054 | EV_FREQUENT_CHECK; |
2152 | } |
3055 | } |
2153 | |
3056 | |
2154 | #if EV_EMBED_ENABLE |
3057 | #if EV_EMBED_ENABLE |
2155 | void noinline |
3058 | void noinline |
2156 | ev_embed_sweep (EV_P_ ev_embed *w) |
3059 | ev_embed_sweep (EV_P_ ev_embed *w) |
2157 | { |
3060 | { |
2158 | ev_loop (w->loop, EVLOOP_NONBLOCK); |
3061 | ev_loop (w->other, EVLOOP_NONBLOCK); |
2159 | } |
3062 | } |
2160 | |
3063 | |
2161 | static void |
3064 | static void |
2162 | embed_cb (EV_P_ ev_io *io, int revents) |
3065 | embed_io_cb (EV_P_ ev_io *io, int revents) |
2163 | { |
3066 | { |
2164 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
3067 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
2165 | |
3068 | |
2166 | if (ev_cb (w)) |
3069 | if (ev_cb (w)) |
2167 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
3070 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2168 | else |
3071 | else |
2169 | ev_embed_sweep (loop, w); |
3072 | ev_loop (w->other, EVLOOP_NONBLOCK); |
2170 | } |
3073 | } |
|
|
3074 | |
|
|
3075 | static void |
|
|
3076 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
|
|
3077 | { |
|
|
3078 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
|
|
3079 | |
|
|
3080 | { |
|
|
3081 | struct ev_loop *loop = w->other; |
|
|
3082 | |
|
|
3083 | while (fdchangecnt) |
|
|
3084 | { |
|
|
3085 | fd_reify (EV_A); |
|
|
3086 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
3087 | } |
|
|
3088 | } |
|
|
3089 | } |
|
|
3090 | |
|
|
3091 | static void |
|
|
3092 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
|
|
3093 | { |
|
|
3094 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
|
|
3095 | |
|
|
3096 | ev_embed_stop (EV_A_ w); |
|
|
3097 | |
|
|
3098 | { |
|
|
3099 | struct ev_loop *loop = w->other; |
|
|
3100 | |
|
|
3101 | ev_loop_fork (EV_A); |
|
|
3102 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
3103 | } |
|
|
3104 | |
|
|
3105 | ev_embed_start (EV_A_ w); |
|
|
3106 | } |
|
|
3107 | |
|
|
3108 | #if 0 |
|
|
3109 | static void |
|
|
3110 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
|
|
3111 | { |
|
|
3112 | ev_idle_stop (EV_A_ idle); |
|
|
3113 | } |
|
|
3114 | #endif |
2171 | |
3115 | |
2172 | void |
3116 | void |
2173 | ev_embed_start (EV_P_ ev_embed *w) |
3117 | ev_embed_start (EV_P_ ev_embed *w) |
2174 | { |
3118 | { |
2175 | if (expect_false (ev_is_active (w))) |
3119 | if (expect_false (ev_is_active (w))) |
2176 | return; |
3120 | return; |
2177 | |
3121 | |
2178 | { |
3122 | { |
2179 | struct ev_loop *loop = w->loop; |
3123 | struct ev_loop *loop = w->other; |
2180 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3124 | 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); |
3125 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2182 | } |
3126 | } |
|
|
3127 | |
|
|
3128 | EV_FREQUENT_CHECK; |
2183 | |
3129 | |
2184 | ev_set_priority (&w->io, ev_priority (w)); |
3130 | ev_set_priority (&w->io, ev_priority (w)); |
2185 | ev_io_start (EV_A_ &w->io); |
3131 | ev_io_start (EV_A_ &w->io); |
2186 | |
3132 | |
|
|
3133 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
|
|
3134 | ev_set_priority (&w->prepare, EV_MINPRI); |
|
|
3135 | ev_prepare_start (EV_A_ &w->prepare); |
|
|
3136 | |
|
|
3137 | ev_fork_init (&w->fork, embed_fork_cb); |
|
|
3138 | ev_fork_start (EV_A_ &w->fork); |
|
|
3139 | |
|
|
3140 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
|
|
3141 | |
2187 | ev_start (EV_A_ (W)w, 1); |
3142 | ev_start (EV_A_ (W)w, 1); |
|
|
3143 | |
|
|
3144 | EV_FREQUENT_CHECK; |
2188 | } |
3145 | } |
2189 | |
3146 | |
2190 | void |
3147 | void |
2191 | ev_embed_stop (EV_P_ ev_embed *w) |
3148 | ev_embed_stop (EV_P_ ev_embed *w) |
2192 | { |
3149 | { |
2193 | clear_pending (EV_A_ (W)w); |
3150 | clear_pending (EV_A_ (W)w); |
2194 | if (expect_false (!ev_is_active (w))) |
3151 | if (expect_false (!ev_is_active (w))) |
2195 | return; |
3152 | return; |
2196 | |
3153 | |
|
|
3154 | EV_FREQUENT_CHECK; |
|
|
3155 | |
2197 | ev_io_stop (EV_A_ &w->io); |
3156 | ev_io_stop (EV_A_ &w->io); |
|
|
3157 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
3158 | ev_fork_stop (EV_A_ &w->fork); |
2198 | |
3159 | |
2199 | ev_stop (EV_A_ (W)w); |
3160 | EV_FREQUENT_CHECK; |
2200 | } |
3161 | } |
2201 | #endif |
3162 | #endif |
2202 | |
3163 | |
2203 | #if EV_FORK_ENABLE |
3164 | #if EV_FORK_ENABLE |
2204 | void |
3165 | void |
2205 | ev_fork_start (EV_P_ ev_fork *w) |
3166 | ev_fork_start (EV_P_ ev_fork *w) |
2206 | { |
3167 | { |
2207 | if (expect_false (ev_is_active (w))) |
3168 | if (expect_false (ev_is_active (w))) |
2208 | return; |
3169 | return; |
|
|
3170 | |
|
|
3171 | EV_FREQUENT_CHECK; |
2209 | |
3172 | |
2210 | ev_start (EV_A_ (W)w, ++forkcnt); |
3173 | ev_start (EV_A_ (W)w, ++forkcnt); |
2211 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
3174 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
2212 | forks [forkcnt - 1] = w; |
3175 | forks [forkcnt - 1] = w; |
|
|
3176 | |
|
|
3177 | EV_FREQUENT_CHECK; |
2213 | } |
3178 | } |
2214 | |
3179 | |
2215 | void |
3180 | void |
2216 | ev_fork_stop (EV_P_ ev_fork *w) |
3181 | ev_fork_stop (EV_P_ ev_fork *w) |
2217 | { |
3182 | { |
2218 | clear_pending (EV_A_ (W)w); |
3183 | clear_pending (EV_A_ (W)w); |
2219 | if (expect_false (!ev_is_active (w))) |
3184 | if (expect_false (!ev_is_active (w))) |
2220 | return; |
3185 | return; |
2221 | |
3186 | |
|
|
3187 | EV_FREQUENT_CHECK; |
|
|
3188 | |
2222 | { |
3189 | { |
2223 | int active = ((W)w)->active; |
3190 | int active = ev_active (w); |
|
|
3191 | |
2224 | forks [active - 1] = forks [--forkcnt]; |
3192 | forks [active - 1] = forks [--forkcnt]; |
2225 | ((W)forks [active - 1])->active = active; |
3193 | ev_active (forks [active - 1]) = active; |
2226 | } |
3194 | } |
2227 | |
3195 | |
2228 | ev_stop (EV_A_ (W)w); |
3196 | ev_stop (EV_A_ (W)w); |
|
|
3197 | |
|
|
3198 | EV_FREQUENT_CHECK; |
|
|
3199 | } |
|
|
3200 | #endif |
|
|
3201 | |
|
|
3202 | #if EV_ASYNC_ENABLE |
|
|
3203 | void |
|
|
3204 | ev_async_start (EV_P_ ev_async *w) |
|
|
3205 | { |
|
|
3206 | if (expect_false (ev_is_active (w))) |
|
|
3207 | return; |
|
|
3208 | |
|
|
3209 | evpipe_init (EV_A); |
|
|
3210 | |
|
|
3211 | EV_FREQUENT_CHECK; |
|
|
3212 | |
|
|
3213 | ev_start (EV_A_ (W)w, ++asynccnt); |
|
|
3214 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
|
|
3215 | asyncs [asynccnt - 1] = w; |
|
|
3216 | |
|
|
3217 | EV_FREQUENT_CHECK; |
|
|
3218 | } |
|
|
3219 | |
|
|
3220 | void |
|
|
3221 | ev_async_stop (EV_P_ ev_async *w) |
|
|
3222 | { |
|
|
3223 | clear_pending (EV_A_ (W)w); |
|
|
3224 | if (expect_false (!ev_is_active (w))) |
|
|
3225 | return; |
|
|
3226 | |
|
|
3227 | EV_FREQUENT_CHECK; |
|
|
3228 | |
|
|
3229 | { |
|
|
3230 | int active = ev_active (w); |
|
|
3231 | |
|
|
3232 | asyncs [active - 1] = asyncs [--asynccnt]; |
|
|
3233 | ev_active (asyncs [active - 1]) = active; |
|
|
3234 | } |
|
|
3235 | |
|
|
3236 | ev_stop (EV_A_ (W)w); |
|
|
3237 | |
|
|
3238 | EV_FREQUENT_CHECK; |
|
|
3239 | } |
|
|
3240 | |
|
|
3241 | void |
|
|
3242 | ev_async_send (EV_P_ ev_async *w) |
|
|
3243 | { |
|
|
3244 | w->sent = 1; |
|
|
3245 | evpipe_write (EV_A_ &gotasync); |
2229 | } |
3246 | } |
2230 | #endif |
3247 | #endif |
2231 | |
3248 | |
2232 | /*****************************************************************************/ |
3249 | /*****************************************************************************/ |
2233 | |
3250 | |
… | |
… | |
2243 | once_cb (EV_P_ struct ev_once *once, int revents) |
3260 | once_cb (EV_P_ struct ev_once *once, int revents) |
2244 | { |
3261 | { |
2245 | void (*cb)(int revents, void *arg) = once->cb; |
3262 | void (*cb)(int revents, void *arg) = once->cb; |
2246 | void *arg = once->arg; |
3263 | void *arg = once->arg; |
2247 | |
3264 | |
2248 | ev_io_stop (EV_A_ &once->io); |
3265 | ev_io_stop (EV_A_ &once->io); |
2249 | ev_timer_stop (EV_A_ &once->to); |
3266 | ev_timer_stop (EV_A_ &once->to); |
2250 | ev_free (once); |
3267 | ev_free (once); |
2251 | |
3268 | |
2252 | cb (revents, arg); |
3269 | cb (revents, arg); |
2253 | } |
3270 | } |
2254 | |
3271 | |
2255 | static void |
3272 | static void |
2256 | once_cb_io (EV_P_ ev_io *w, int revents) |
3273 | once_cb_io (EV_P_ ev_io *w, int revents) |
2257 | { |
3274 | { |
2258 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
3275 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)); |
|
|
3276 | |
|
|
3277 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to)); |
2259 | } |
3278 | } |
2260 | |
3279 | |
2261 | static void |
3280 | static void |
2262 | once_cb_to (EV_P_ ev_timer *w, int revents) |
3281 | once_cb_to (EV_P_ ev_timer *w, int revents) |
2263 | { |
3282 | { |
2264 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
3283 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)); |
|
|
3284 | |
|
|
3285 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
2265 | } |
3286 | } |
2266 | |
3287 | |
2267 | void |
3288 | void |
2268 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
3289 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
2269 | { |
3290 | { |
… | |
… | |
2291 | ev_timer_set (&once->to, timeout, 0.); |
3312 | ev_timer_set (&once->to, timeout, 0.); |
2292 | ev_timer_start (EV_A_ &once->to); |
3313 | ev_timer_start (EV_A_ &once->to); |
2293 | } |
3314 | } |
2294 | } |
3315 | } |
2295 | |
3316 | |
|
|
3317 | /*****************************************************************************/ |
|
|
3318 | |
|
|
3319 | #if EV_WALK_ENABLE |
|
|
3320 | void |
|
|
3321 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
|
|
3322 | { |
|
|
3323 | int i, j; |
|
|
3324 | ev_watcher_list *wl, *wn; |
|
|
3325 | |
|
|
3326 | if (types & (EV_IO | EV_EMBED)) |
|
|
3327 | for (i = 0; i < anfdmax; ++i) |
|
|
3328 | for (wl = anfds [i].head; wl; ) |
|
|
3329 | { |
|
|
3330 | wn = wl->next; |
|
|
3331 | |
|
|
3332 | #if EV_EMBED_ENABLE |
|
|
3333 | if (ev_cb ((ev_io *)wl) == embed_io_cb) |
|
|
3334 | { |
|
|
3335 | if (types & EV_EMBED) |
|
|
3336 | cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io)); |
|
|
3337 | } |
|
|
3338 | else |
|
|
3339 | #endif |
|
|
3340 | #if EV_USE_INOTIFY |
|
|
3341 | if (ev_cb ((ev_io *)wl) == infy_cb) |
|
|
3342 | ; |
|
|
3343 | else |
|
|
3344 | #endif |
|
|
3345 | if ((ev_io *)wl != &pipe_w) |
|
|
3346 | if (types & EV_IO) |
|
|
3347 | cb (EV_A_ EV_IO, wl); |
|
|
3348 | |
|
|
3349 | wl = wn; |
|
|
3350 | } |
|
|
3351 | |
|
|
3352 | if (types & (EV_TIMER | EV_STAT)) |
|
|
3353 | for (i = timercnt + HEAP0; i-- > HEAP0; ) |
|
|
3354 | #if EV_STAT_ENABLE |
|
|
3355 | /*TODO: timer is not always active*/ |
|
|
3356 | if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb) |
|
|
3357 | { |
|
|
3358 | if (types & EV_STAT) |
|
|
3359 | cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer)); |
|
|
3360 | } |
|
|
3361 | else |
|
|
3362 | #endif |
|
|
3363 | if (types & EV_TIMER) |
|
|
3364 | cb (EV_A_ EV_TIMER, ANHE_w (timers [i])); |
|
|
3365 | |
|
|
3366 | #if EV_PERIODIC_ENABLE |
|
|
3367 | if (types & EV_PERIODIC) |
|
|
3368 | for (i = periodiccnt + HEAP0; i-- > HEAP0; ) |
|
|
3369 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
|
|
3370 | #endif |
|
|
3371 | |
|
|
3372 | #if EV_IDLE_ENABLE |
|
|
3373 | if (types & EV_IDLE) |
|
|
3374 | for (j = NUMPRI; i--; ) |
|
|
3375 | for (i = idlecnt [j]; i--; ) |
|
|
3376 | cb (EV_A_ EV_IDLE, idles [j][i]); |
|
|
3377 | #endif |
|
|
3378 | |
|
|
3379 | #if EV_FORK_ENABLE |
|
|
3380 | if (types & EV_FORK) |
|
|
3381 | for (i = forkcnt; i--; ) |
|
|
3382 | if (ev_cb (forks [i]) != embed_fork_cb) |
|
|
3383 | cb (EV_A_ EV_FORK, forks [i]); |
|
|
3384 | #endif |
|
|
3385 | |
|
|
3386 | #if EV_ASYNC_ENABLE |
|
|
3387 | if (types & EV_ASYNC) |
|
|
3388 | for (i = asynccnt; i--; ) |
|
|
3389 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
|
|
3390 | #endif |
|
|
3391 | |
|
|
3392 | if (types & EV_PREPARE) |
|
|
3393 | for (i = preparecnt; i--; ) |
|
|
3394 | #if EV_EMBED_ENABLE |
|
|
3395 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
|
|
3396 | #endif |
|
|
3397 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
3398 | |
|
|
3399 | if (types & EV_CHECK) |
|
|
3400 | for (i = checkcnt; i--; ) |
|
|
3401 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
3402 | |
|
|
3403 | if (types & EV_SIGNAL) |
|
|
3404 | for (i = 0; i < signalmax; ++i) |
|
|
3405 | for (wl = signals [i].head; wl; ) |
|
|
3406 | { |
|
|
3407 | wn = wl->next; |
|
|
3408 | cb (EV_A_ EV_SIGNAL, wl); |
|
|
3409 | wl = wn; |
|
|
3410 | } |
|
|
3411 | |
|
|
3412 | if (types & EV_CHILD) |
|
|
3413 | for (i = EV_PID_HASHSIZE; i--; ) |
|
|
3414 | for (wl = childs [i]; wl; ) |
|
|
3415 | { |
|
|
3416 | wn = wl->next; |
|
|
3417 | cb (EV_A_ EV_CHILD, wl); |
|
|
3418 | wl = wn; |
|
|
3419 | } |
|
|
3420 | /* EV_STAT 0x00001000 /* stat data changed */ |
|
|
3421 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
|
|
3422 | } |
|
|
3423 | #endif |
|
|
3424 | |
|
|
3425 | #if EV_MULTIPLICITY |
|
|
3426 | #include "ev_wrap.h" |
|
|
3427 | #endif |
|
|
3428 | |
2296 | #ifdef __cplusplus |
3429 | #ifdef __cplusplus |
2297 | } |
3430 | } |
2298 | #endif |
3431 | #endif |
2299 | |
3432 | |