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 |
220 | |
360 | |
221 | /* |
361 | /* |
222 | * This is used to avoid floating point rounding problems. |
362 | * This is used to avoid floating point rounding problems. |
223 | * It is added to ev_rt_now when scheduling periodics |
363 | * It is added to ev_rt_now when scheduling periodics |
224 | * to ensure progress, time-wise, even when rounding |
364 | * to ensure progress, time-wise, even when rounding |
… | |
… | |
230 | |
370 | |
231 | #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) */ |
232 | #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) */ |
233 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
373 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
234 | |
374 | |
235 | #if __GNUC__ >= 3 |
375 | #if __GNUC__ >= 4 |
236 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
376 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
237 | # define noinline __attribute__ ((noinline)) |
377 | # define noinline __attribute__ ((noinline)) |
238 | #else |
378 | #else |
239 | # define expect(expr,value) (expr) |
379 | # define expect(expr,value) (expr) |
240 | # define noinline |
380 | # define noinline |
241 | # if __STDC_VERSION__ < 199901L |
381 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
242 | # define inline |
382 | # define inline |
243 | # endif |
383 | # endif |
244 | #endif |
384 | #endif |
245 | |
385 | |
246 | #define expect_false(expr) expect ((expr) != 0, 0) |
386 | #define expect_false(expr) expect ((expr) != 0, 0) |
… | |
… | |
261 | |
401 | |
262 | typedef ev_watcher *W; |
402 | typedef ev_watcher *W; |
263 | typedef ev_watcher_list *WL; |
403 | typedef ev_watcher_list *WL; |
264 | typedef ev_watcher_time *WT; |
404 | typedef ev_watcher_time *WT; |
265 | |
405 | |
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406 | #define ev_active(w) ((W)(w))->active |
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407 | #define ev_at(w) ((WT)(w))->at |
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408 | |
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409 | #if EV_USE_REALTIME |
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410 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
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411 | /* giving it a reasonably high chance of working on typical architetcures */ |
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412 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
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413 | #endif |
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414 | |
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415 | #if EV_USE_MONOTONIC |
266 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
416 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
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417 | #endif |
267 | |
418 | |
268 | #ifdef _WIN32 |
419 | #ifdef _WIN32 |
269 | # include "ev_win32.c" |
420 | # include "ev_win32.c" |
270 | #endif |
421 | #endif |
271 | |
422 | |
… | |
… | |
278 | { |
429 | { |
279 | syserr_cb = cb; |
430 | syserr_cb = cb; |
280 | } |
431 | } |
281 | |
432 | |
282 | static void noinline |
433 | static void noinline |
283 | syserr (const char *msg) |
434 | ev_syserr (const char *msg) |
284 | { |
435 | { |
285 | if (!msg) |
436 | if (!msg) |
286 | msg = "(libev) system error"; |
437 | msg = "(libev) system error"; |
287 | |
438 | |
288 | if (syserr_cb) |
439 | if (syserr_cb) |
… | |
… | |
292 | perror (msg); |
443 | perror (msg); |
293 | abort (); |
444 | abort (); |
294 | } |
445 | } |
295 | } |
446 | } |
296 | |
447 | |
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448 | static void * |
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449 | ev_realloc_emul (void *ptr, long size) |
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450 | { |
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451 | /* some systems, notably openbsd and darwin, fail to properly |
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452 | * implement realloc (x, 0) (as required by both ansi c-98 and |
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453 | * the single unix specification, so work around them here. |
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454 | */ |
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455 | |
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456 | if (size) |
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457 | return realloc (ptr, size); |
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458 | |
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459 | free (ptr); |
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460 | return 0; |
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461 | } |
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462 | |
297 | static void *(*alloc)(void *ptr, long size); |
463 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
298 | |
464 | |
299 | void |
465 | void |
300 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
466 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
301 | { |
467 | { |
302 | alloc = cb; |
468 | alloc = cb; |
303 | } |
469 | } |
304 | |
470 | |
305 | inline_speed void * |
471 | inline_speed void * |
306 | ev_realloc (void *ptr, long size) |
472 | ev_realloc (void *ptr, long size) |
307 | { |
473 | { |
308 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
474 | ptr = alloc (ptr, size); |
309 | |
475 | |
310 | if (!ptr && size) |
476 | if (!ptr && size) |
311 | { |
477 | { |
312 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
478 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
313 | abort (); |
479 | abort (); |
… | |
… | |
319 | #define ev_malloc(size) ev_realloc (0, (size)) |
485 | #define ev_malloc(size) ev_realloc (0, (size)) |
320 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
486 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
321 | |
487 | |
322 | /*****************************************************************************/ |
488 | /*****************************************************************************/ |
323 | |
489 | |
|
|
490 | /* file descriptor info structure */ |
324 | typedef struct |
491 | typedef struct |
325 | { |
492 | { |
326 | WL head; |
493 | WL head; |
327 | unsigned char events; |
494 | unsigned char events; /* the events watched for */ |
|
|
495 | unsigned char reify; /* flag set when this ANFD needs reification */ |
|
|
496 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
328 | unsigned char reify; |
497 | unsigned char unused; |
|
|
498 | #if EV_USE_EPOLL |
|
|
499 | unsigned int egen; /* generation counter to counter epoll bugs */ |
|
|
500 | #endif |
329 | #if EV_SELECT_IS_WINSOCKET |
501 | #if EV_SELECT_IS_WINSOCKET |
330 | SOCKET handle; |
502 | SOCKET handle; |
331 | #endif |
503 | #endif |
332 | } ANFD; |
504 | } ANFD; |
333 | |
505 | |
|
|
506 | /* stores the pending event set for a given watcher */ |
334 | typedef struct |
507 | typedef struct |
335 | { |
508 | { |
336 | W w; |
509 | W w; |
337 | int events; |
510 | int events; /* the pending event set for the given watcher */ |
338 | } ANPENDING; |
511 | } ANPENDING; |
339 | |
512 | |
340 | #if EV_USE_INOTIFY |
513 | #if EV_USE_INOTIFY |
|
|
514 | /* hash table entry per inotify-id */ |
341 | typedef struct |
515 | typedef struct |
342 | { |
516 | { |
343 | WL head; |
517 | WL head; |
344 | } ANFS; |
518 | } ANFS; |
|
|
519 | #endif |
|
|
520 | |
|
|
521 | /* Heap Entry */ |
|
|
522 | #if EV_HEAP_CACHE_AT |
|
|
523 | /* a heap element */ |
|
|
524 | typedef struct { |
|
|
525 | ev_tstamp at; |
|
|
526 | WT w; |
|
|
527 | } ANHE; |
|
|
528 | |
|
|
529 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
|
|
530 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
|
|
531 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
|
|
532 | #else |
|
|
533 | /* a heap element */ |
|
|
534 | typedef WT ANHE; |
|
|
535 | |
|
|
536 | #define ANHE_w(he) (he) |
|
|
537 | #define ANHE_at(he) (he)->at |
|
|
538 | #define ANHE_at_cache(he) |
345 | #endif |
539 | #endif |
346 | |
540 | |
347 | #if EV_MULTIPLICITY |
541 | #if EV_MULTIPLICITY |
348 | |
542 | |
349 | struct ev_loop |
543 | struct ev_loop |
… | |
… | |
370 | |
564 | |
371 | #endif |
565 | #endif |
372 | |
566 | |
373 | /*****************************************************************************/ |
567 | /*****************************************************************************/ |
374 | |
568 | |
|
|
569 | #ifndef EV_HAVE_EV_TIME |
375 | ev_tstamp |
570 | ev_tstamp |
376 | ev_time (void) |
571 | ev_time (void) |
377 | { |
572 | { |
378 | #if EV_USE_REALTIME |
573 | #if EV_USE_REALTIME |
|
|
574 | if (expect_true (have_realtime)) |
|
|
575 | { |
379 | struct timespec ts; |
576 | struct timespec ts; |
380 | clock_gettime (CLOCK_REALTIME, &ts); |
577 | clock_gettime (CLOCK_REALTIME, &ts); |
381 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
578 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
382 | #else |
579 | } |
|
|
580 | #endif |
|
|
581 | |
383 | struct timeval tv; |
582 | struct timeval tv; |
384 | gettimeofday (&tv, 0); |
583 | gettimeofday (&tv, 0); |
385 | return tv.tv_sec + tv.tv_usec * 1e-6; |
584 | return tv.tv_sec + tv.tv_usec * 1e-6; |
386 | #endif |
|
|
387 | } |
585 | } |
|
|
586 | #endif |
388 | |
587 | |
389 | ev_tstamp inline_size |
588 | inline_size ev_tstamp |
390 | get_clock (void) |
589 | get_clock (void) |
391 | { |
590 | { |
392 | #if EV_USE_MONOTONIC |
591 | #if EV_USE_MONOTONIC |
393 | if (expect_true (have_monotonic)) |
592 | if (expect_true (have_monotonic)) |
394 | { |
593 | { |
… | |
… | |
407 | { |
606 | { |
408 | return ev_rt_now; |
607 | return ev_rt_now; |
409 | } |
608 | } |
410 | #endif |
609 | #endif |
411 | |
610 | |
412 | int inline_size |
611 | void |
|
|
612 | ev_sleep (ev_tstamp delay) |
|
|
613 | { |
|
|
614 | if (delay > 0.) |
|
|
615 | { |
|
|
616 | #if EV_USE_NANOSLEEP |
|
|
617 | struct timespec ts; |
|
|
618 | |
|
|
619 | ts.tv_sec = (time_t)delay; |
|
|
620 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
621 | |
|
|
622 | nanosleep (&ts, 0); |
|
|
623 | #elif defined(_WIN32) |
|
|
624 | Sleep ((unsigned long)(delay * 1e3)); |
|
|
625 | #else |
|
|
626 | struct timeval tv; |
|
|
627 | |
|
|
628 | tv.tv_sec = (time_t)delay; |
|
|
629 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
|
|
630 | |
|
|
631 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
|
|
632 | /* somehting not guaranteed by newer posix versions, but guaranteed */ |
|
|
633 | /* by older ones */ |
|
|
634 | select (0, 0, 0, 0, &tv); |
|
|
635 | #endif |
|
|
636 | } |
|
|
637 | } |
|
|
638 | |
|
|
639 | /*****************************************************************************/ |
|
|
640 | |
|
|
641 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
|
|
642 | |
|
|
643 | /* find a suitable new size for the given array, */ |
|
|
644 | /* hopefully by rounding to a ncie-to-malloc size */ |
|
|
645 | inline_size int |
413 | array_nextsize (int elem, int cur, int cnt) |
646 | array_nextsize (int elem, int cur, int cnt) |
414 | { |
647 | { |
415 | int ncur = cur + 1; |
648 | int ncur = cur + 1; |
416 | |
649 | |
417 | do |
650 | do |
418 | ncur <<= 1; |
651 | ncur <<= 1; |
419 | while (cnt > ncur); |
652 | while (cnt > ncur); |
420 | |
653 | |
421 | /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */ |
654 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
422 | if (elem * ncur > 4096) |
655 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
423 | { |
656 | { |
424 | ncur *= elem; |
657 | ncur *= elem; |
425 | ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095; |
658 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
426 | ncur = ncur - sizeof (void *) * 4; |
659 | ncur = ncur - sizeof (void *) * 4; |
427 | ncur /= elem; |
660 | ncur /= elem; |
428 | } |
661 | } |
429 | |
662 | |
430 | return ncur; |
663 | return ncur; |
… | |
… | |
434 | array_realloc (int elem, void *base, int *cur, int cnt) |
667 | array_realloc (int elem, void *base, int *cur, int cnt) |
435 | { |
668 | { |
436 | *cur = array_nextsize (elem, *cur, cnt); |
669 | *cur = array_nextsize (elem, *cur, cnt); |
437 | return ev_realloc (base, elem * *cur); |
670 | return ev_realloc (base, elem * *cur); |
438 | } |
671 | } |
|
|
672 | |
|
|
673 | #define array_init_zero(base,count) \ |
|
|
674 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
439 | |
675 | |
440 | #define array_needsize(type,base,cur,cnt,init) \ |
676 | #define array_needsize(type,base,cur,cnt,init) \ |
441 | if (expect_false ((cnt) > (cur))) \ |
677 | if (expect_false ((cnt) > (cur))) \ |
442 | { \ |
678 | { \ |
443 | int ocur_ = (cur); \ |
679 | int ocur_ = (cur); \ |
… | |
… | |
455 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
691 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
456 | } |
692 | } |
457 | #endif |
693 | #endif |
458 | |
694 | |
459 | #define array_free(stem, idx) \ |
695 | #define array_free(stem, idx) \ |
460 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
696 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
461 | |
697 | |
462 | /*****************************************************************************/ |
698 | /*****************************************************************************/ |
|
|
699 | |
|
|
700 | /* dummy callback for pending events */ |
|
|
701 | static void noinline |
|
|
702 | pendingcb (EV_P_ ev_prepare *w, int revents) |
|
|
703 | { |
|
|
704 | } |
463 | |
705 | |
464 | void noinline |
706 | void noinline |
465 | ev_feed_event (EV_P_ void *w, int revents) |
707 | ev_feed_event (EV_P_ void *w, int revents) |
466 | { |
708 | { |
467 | W w_ = (W)w; |
709 | W w_ = (W)w; |
… | |
… | |
476 | pendings [pri][w_->pending - 1].w = w_; |
718 | pendings [pri][w_->pending - 1].w = w_; |
477 | pendings [pri][w_->pending - 1].events = revents; |
719 | pendings [pri][w_->pending - 1].events = revents; |
478 | } |
720 | } |
479 | } |
721 | } |
480 | |
722 | |
481 | void inline_size |
723 | inline_speed void |
|
|
724 | feed_reverse (EV_P_ W w) |
|
|
725 | { |
|
|
726 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
|
|
727 | rfeeds [rfeedcnt++] = w; |
|
|
728 | } |
|
|
729 | |
|
|
730 | inline_size void |
|
|
731 | feed_reverse_done (EV_P_ int revents) |
|
|
732 | { |
|
|
733 | do |
|
|
734 | ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents); |
|
|
735 | while (rfeedcnt); |
|
|
736 | } |
|
|
737 | |
|
|
738 | inline_speed void |
482 | queue_events (EV_P_ W *events, int eventcnt, int type) |
739 | queue_events (EV_P_ W *events, int eventcnt, int type) |
483 | { |
740 | { |
484 | int i; |
741 | int i; |
485 | |
742 | |
486 | for (i = 0; i < eventcnt; ++i) |
743 | for (i = 0; i < eventcnt; ++i) |
487 | ev_feed_event (EV_A_ events [i], type); |
744 | ev_feed_event (EV_A_ events [i], type); |
488 | } |
745 | } |
489 | |
746 | |
490 | /*****************************************************************************/ |
747 | /*****************************************************************************/ |
491 | |
748 | |
492 | void inline_size |
749 | inline_speed void |
493 | anfds_init (ANFD *base, int count) |
|
|
494 | { |
|
|
495 | while (count--) |
|
|
496 | { |
|
|
497 | base->head = 0; |
|
|
498 | base->events = EV_NONE; |
|
|
499 | base->reify = 0; |
|
|
500 | |
|
|
501 | ++base; |
|
|
502 | } |
|
|
503 | } |
|
|
504 | |
|
|
505 | void inline_speed |
|
|
506 | fd_event (EV_P_ int fd, int revents) |
750 | fd_event (EV_P_ int fd, int revents) |
507 | { |
751 | { |
508 | ANFD *anfd = anfds + fd; |
752 | ANFD *anfd = anfds + fd; |
509 | ev_io *w; |
753 | ev_io *w; |
510 | |
754 | |
… | |
… | |
522 | { |
766 | { |
523 | if (fd >= 0 && fd < anfdmax) |
767 | if (fd >= 0 && fd < anfdmax) |
524 | fd_event (EV_A_ fd, revents); |
768 | fd_event (EV_A_ fd, revents); |
525 | } |
769 | } |
526 | |
770 | |
527 | void inline_size |
771 | /* make sure the external fd watch events are in-sync */ |
|
|
772 | /* with the kernel/libev internal state */ |
|
|
773 | inline_size void |
528 | fd_reify (EV_P) |
774 | fd_reify (EV_P) |
529 | { |
775 | { |
530 | int i; |
776 | int i; |
531 | |
777 | |
532 | for (i = 0; i < fdchangecnt; ++i) |
778 | for (i = 0; i < fdchangecnt; ++i) |
533 | { |
779 | { |
534 | int fd = fdchanges [i]; |
780 | int fd = fdchanges [i]; |
535 | ANFD *anfd = anfds + fd; |
781 | ANFD *anfd = anfds + fd; |
536 | ev_io *w; |
782 | ev_io *w; |
537 | |
783 | |
538 | int events = 0; |
784 | unsigned char events = 0; |
539 | |
785 | |
540 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
786 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
541 | events |= w->events; |
787 | events |= (unsigned char)w->events; |
542 | |
788 | |
543 | #if EV_SELECT_IS_WINSOCKET |
789 | #if EV_SELECT_IS_WINSOCKET |
544 | if (events) |
790 | if (events) |
545 | { |
791 | { |
546 | unsigned long argp; |
792 | unsigned long arg; |
|
|
793 | #ifdef EV_FD_TO_WIN32_HANDLE |
|
|
794 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
795 | #else |
547 | anfd->handle = _get_osfhandle (fd); |
796 | anfd->handle = _get_osfhandle (fd); |
|
|
797 | #endif |
548 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
798 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
549 | } |
799 | } |
550 | #endif |
800 | #endif |
551 | |
801 | |
|
|
802 | { |
|
|
803 | unsigned char o_events = anfd->events; |
|
|
804 | unsigned char o_reify = anfd->reify; |
|
|
805 | |
552 | anfd->reify = 0; |
806 | anfd->reify = 0; |
553 | |
|
|
554 | backend_modify (EV_A_ fd, anfd->events, events); |
|
|
555 | anfd->events = events; |
807 | anfd->events = events; |
|
|
808 | |
|
|
809 | if (o_events != events || o_reify & EV__IOFDSET) |
|
|
810 | backend_modify (EV_A_ fd, o_events, events); |
|
|
811 | } |
556 | } |
812 | } |
557 | |
813 | |
558 | fdchangecnt = 0; |
814 | fdchangecnt = 0; |
559 | } |
815 | } |
560 | |
816 | |
561 | void inline_size |
817 | /* something about the given fd changed */ |
|
|
818 | inline_size void |
562 | fd_change (EV_P_ int fd) |
819 | fd_change (EV_P_ int fd, int flags) |
563 | { |
820 | { |
564 | if (expect_false (anfds [fd].reify)) |
821 | unsigned char reify = anfds [fd].reify; |
565 | return; |
|
|
566 | |
|
|
567 | anfds [fd].reify = 1; |
822 | anfds [fd].reify |= flags; |
568 | |
823 | |
|
|
824 | if (expect_true (!reify)) |
|
|
825 | { |
569 | ++fdchangecnt; |
826 | ++fdchangecnt; |
570 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
827 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
571 | fdchanges [fdchangecnt - 1] = fd; |
828 | fdchanges [fdchangecnt - 1] = fd; |
|
|
829 | } |
572 | } |
830 | } |
573 | |
831 | |
574 | void inline_speed |
832 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
|
|
833 | inline_speed void |
575 | fd_kill (EV_P_ int fd) |
834 | fd_kill (EV_P_ int fd) |
576 | { |
835 | { |
577 | ev_io *w; |
836 | ev_io *w; |
578 | |
837 | |
579 | while ((w = (ev_io *)anfds [fd].head)) |
838 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
581 | ev_io_stop (EV_A_ w); |
840 | ev_io_stop (EV_A_ w); |
582 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
841 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
583 | } |
842 | } |
584 | } |
843 | } |
585 | |
844 | |
586 | int inline_size |
845 | /* check whether the given fd is atcually valid, for error recovery */ |
|
|
846 | inline_size int |
587 | fd_valid (int fd) |
847 | fd_valid (int fd) |
588 | { |
848 | { |
589 | #ifdef _WIN32 |
849 | #ifdef _WIN32 |
590 | return _get_osfhandle (fd) != -1; |
850 | return _get_osfhandle (fd) != -1; |
591 | #else |
851 | #else |
… | |
… | |
599 | { |
859 | { |
600 | int fd; |
860 | int fd; |
601 | |
861 | |
602 | for (fd = 0; fd < anfdmax; ++fd) |
862 | for (fd = 0; fd < anfdmax; ++fd) |
603 | if (anfds [fd].events) |
863 | if (anfds [fd].events) |
604 | if (!fd_valid (fd) == -1 && errno == EBADF) |
864 | if (!fd_valid (fd) && errno == EBADF) |
605 | fd_kill (EV_A_ fd); |
865 | fd_kill (EV_A_ fd); |
606 | } |
866 | } |
607 | |
867 | |
608 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
868 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
609 | static void noinline |
869 | static void noinline |
… | |
… | |
627 | |
887 | |
628 | for (fd = 0; fd < anfdmax; ++fd) |
888 | for (fd = 0; fd < anfdmax; ++fd) |
629 | if (anfds [fd].events) |
889 | if (anfds [fd].events) |
630 | { |
890 | { |
631 | anfds [fd].events = 0; |
891 | anfds [fd].events = 0; |
|
|
892 | anfds [fd].emask = 0; |
632 | fd_change (EV_A_ fd); |
893 | fd_change (EV_A_ fd, EV__IOFDSET | 1); |
633 | } |
894 | } |
634 | } |
895 | } |
635 | |
896 | |
636 | /*****************************************************************************/ |
897 | /*****************************************************************************/ |
637 | |
898 | |
638 | void inline_speed |
899 | /* |
639 | upheap (WT *heap, int k) |
900 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
640 | { |
901 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
641 | WT w = heap [k]; |
902 | * the branching factor of the d-tree. |
|
|
903 | */ |
642 | |
904 | |
643 | while (k && heap [k >> 1]->at > w->at) |
905 | /* |
644 | { |
906 | * at the moment we allow libev the luxury of two heaps, |
645 | heap [k] = heap [k >> 1]; |
907 | * a small-code-size 2-heap one and a ~1.5kb larger 4-heap |
646 | ((W)heap [k])->active = k + 1; |
908 | * which is more cache-efficient. |
647 | k >>= 1; |
909 | * the difference is about 5% with 50000+ watchers. |
648 | } |
910 | */ |
|
|
911 | #if EV_USE_4HEAP |
649 | |
912 | |
650 | heap [k] = w; |
913 | #define DHEAP 4 |
651 | ((W)heap [k])->active = k + 1; |
914 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
|
|
915 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
|
|
916 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
652 | |
917 | |
653 | } |
918 | /* away from the root */ |
654 | |
919 | inline_speed void |
655 | void inline_speed |
|
|
656 | downheap (WT *heap, int N, int k) |
920 | downheap (ANHE *heap, int N, int k) |
657 | { |
921 | { |
658 | WT w = heap [k]; |
922 | ANHE he = heap [k]; |
|
|
923 | ANHE *E = heap + N + HEAP0; |
659 | |
924 | |
660 | while (k < (N >> 1)) |
925 | for (;;) |
661 | { |
926 | { |
662 | int j = k << 1; |
927 | ev_tstamp minat; |
|
|
928 | ANHE *minpos; |
|
|
929 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
663 | |
930 | |
664 | if (j + 1 < N && heap [j]->at > heap [j + 1]->at) |
931 | /* find minimum child */ |
|
|
932 | if (expect_true (pos + DHEAP - 1 < E)) |
665 | ++j; |
933 | { |
666 | |
934 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
667 | if (w->at <= heap [j]->at) |
935 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
936 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
937 | if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
938 | } |
|
|
939 | else if (pos < E) |
|
|
940 | { |
|
|
941 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
942 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
943 | if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
944 | if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
945 | } |
|
|
946 | else |
668 | break; |
947 | break; |
669 | |
948 | |
|
|
949 | if (ANHE_at (he) <= minat) |
|
|
950 | break; |
|
|
951 | |
|
|
952 | heap [k] = *minpos; |
|
|
953 | ev_active (ANHE_w (*minpos)) = k; |
|
|
954 | |
|
|
955 | k = minpos - heap; |
|
|
956 | } |
|
|
957 | |
|
|
958 | heap [k] = he; |
|
|
959 | ev_active (ANHE_w (he)) = k; |
|
|
960 | } |
|
|
961 | |
|
|
962 | #else /* 4HEAP */ |
|
|
963 | |
|
|
964 | #define HEAP0 1 |
|
|
965 | #define HPARENT(k) ((k) >> 1) |
|
|
966 | #define UPHEAP_DONE(p,k) (!(p)) |
|
|
967 | |
|
|
968 | /* away from the root */ |
|
|
969 | inline_speed void |
|
|
970 | downheap (ANHE *heap, int N, int k) |
|
|
971 | { |
|
|
972 | ANHE he = heap [k]; |
|
|
973 | |
|
|
974 | for (;;) |
|
|
975 | { |
|
|
976 | int c = k << 1; |
|
|
977 | |
|
|
978 | if (c > N + HEAP0 - 1) |
|
|
979 | break; |
|
|
980 | |
|
|
981 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
|
|
982 | ? 1 : 0; |
|
|
983 | |
|
|
984 | if (ANHE_at (he) <= ANHE_at (heap [c])) |
|
|
985 | break; |
|
|
986 | |
670 | heap [k] = heap [j]; |
987 | heap [k] = heap [c]; |
671 | ((W)heap [k])->active = k + 1; |
988 | ev_active (ANHE_w (heap [k])) = k; |
|
|
989 | |
672 | k = j; |
990 | k = c; |
673 | } |
991 | } |
674 | |
992 | |
675 | heap [k] = w; |
993 | heap [k] = he; |
676 | ((W)heap [k])->active = k + 1; |
994 | ev_active (ANHE_w (he)) = k; |
677 | } |
995 | } |
|
|
996 | #endif |
678 | |
997 | |
679 | void inline_size |
998 | /* towards the root */ |
|
|
999 | inline_speed void |
|
|
1000 | upheap (ANHE *heap, int k) |
|
|
1001 | { |
|
|
1002 | ANHE he = heap [k]; |
|
|
1003 | |
|
|
1004 | for (;;) |
|
|
1005 | { |
|
|
1006 | int p = HPARENT (k); |
|
|
1007 | |
|
|
1008 | if (UPHEAP_DONE (p, k) || ANHE_at (heap [p]) <= ANHE_at (he)) |
|
|
1009 | break; |
|
|
1010 | |
|
|
1011 | heap [k] = heap [p]; |
|
|
1012 | ev_active (ANHE_w (heap [k])) = k; |
|
|
1013 | k = p; |
|
|
1014 | } |
|
|
1015 | |
|
|
1016 | heap [k] = he; |
|
|
1017 | ev_active (ANHE_w (he)) = k; |
|
|
1018 | } |
|
|
1019 | |
|
|
1020 | /* move an element suitably so it is in a correct place */ |
|
|
1021 | inline_size void |
680 | adjustheap (WT *heap, int N, int k) |
1022 | adjustheap (ANHE *heap, int N, int k) |
681 | { |
1023 | { |
|
|
1024 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
682 | upheap (heap, k); |
1025 | upheap (heap, k); |
|
|
1026 | else |
683 | downheap (heap, N, k); |
1027 | downheap (heap, N, k); |
|
|
1028 | } |
|
|
1029 | |
|
|
1030 | /* rebuild the heap: this function is used only once and executed rarely */ |
|
|
1031 | inline_size void |
|
|
1032 | reheap (ANHE *heap, int N) |
|
|
1033 | { |
|
|
1034 | int i; |
|
|
1035 | |
|
|
1036 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
|
|
1037 | /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */ |
|
|
1038 | for (i = 0; i < N; ++i) |
|
|
1039 | upheap (heap, i + HEAP0); |
684 | } |
1040 | } |
685 | |
1041 | |
686 | /*****************************************************************************/ |
1042 | /*****************************************************************************/ |
687 | |
1043 | |
|
|
1044 | /* associate signal watchers to a signal signal */ |
688 | typedef struct |
1045 | typedef struct |
689 | { |
1046 | { |
690 | WL head; |
1047 | WL head; |
691 | sig_atomic_t volatile gotsig; |
1048 | EV_ATOMIC_T gotsig; |
692 | } ANSIG; |
1049 | } ANSIG; |
693 | |
1050 | |
694 | static ANSIG *signals; |
1051 | static ANSIG *signals; |
695 | static int signalmax; |
1052 | static int signalmax; |
696 | |
1053 | |
697 | static int sigpipe [2]; |
1054 | static EV_ATOMIC_T gotsig; |
698 | static sig_atomic_t volatile gotsig; |
|
|
699 | static ev_io sigev; |
|
|
700 | |
1055 | |
701 | void inline_size |
1056 | /*****************************************************************************/ |
702 | signals_init (ANSIG *base, int count) |
|
|
703 | { |
|
|
704 | while (count--) |
|
|
705 | { |
|
|
706 | base->head = 0; |
|
|
707 | base->gotsig = 0; |
|
|
708 | |
1057 | |
709 | ++base; |
1058 | /* used to prepare libev internal fd's */ |
710 | } |
1059 | /* this is not fork-safe */ |
711 | } |
1060 | inline_speed void |
712 | |
|
|
713 | static void |
|
|
714 | sighandler (int signum) |
|
|
715 | { |
|
|
716 | #if _WIN32 |
|
|
717 | signal (signum, sighandler); |
|
|
718 | #endif |
|
|
719 | |
|
|
720 | signals [signum - 1].gotsig = 1; |
|
|
721 | |
|
|
722 | if (!gotsig) |
|
|
723 | { |
|
|
724 | int old_errno = errno; |
|
|
725 | gotsig = 1; |
|
|
726 | write (sigpipe [1], &signum, 1); |
|
|
727 | errno = old_errno; |
|
|
728 | } |
|
|
729 | } |
|
|
730 | |
|
|
731 | void noinline |
|
|
732 | ev_feed_signal_event (EV_P_ int signum) |
|
|
733 | { |
|
|
734 | WL w; |
|
|
735 | |
|
|
736 | #if EV_MULTIPLICITY |
|
|
737 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
738 | #endif |
|
|
739 | |
|
|
740 | --signum; |
|
|
741 | |
|
|
742 | if (signum < 0 || signum >= signalmax) |
|
|
743 | return; |
|
|
744 | |
|
|
745 | signals [signum].gotsig = 0; |
|
|
746 | |
|
|
747 | for (w = signals [signum].head; w; w = w->next) |
|
|
748 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
749 | } |
|
|
750 | |
|
|
751 | static void |
|
|
752 | sigcb (EV_P_ ev_io *iow, int revents) |
|
|
753 | { |
|
|
754 | int signum; |
|
|
755 | |
|
|
756 | read (sigpipe [0], &revents, 1); |
|
|
757 | gotsig = 0; |
|
|
758 | |
|
|
759 | for (signum = signalmax; signum--; ) |
|
|
760 | if (signals [signum].gotsig) |
|
|
761 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
762 | } |
|
|
763 | |
|
|
764 | void inline_speed |
|
|
765 | fd_intern (int fd) |
1061 | fd_intern (int fd) |
766 | { |
1062 | { |
767 | #ifdef _WIN32 |
1063 | #ifdef _WIN32 |
768 | int arg = 1; |
1064 | unsigned long arg = 1; |
769 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
1065 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
770 | #else |
1066 | #else |
771 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
1067 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
772 | fcntl (fd, F_SETFL, O_NONBLOCK); |
1068 | fcntl (fd, F_SETFL, O_NONBLOCK); |
773 | #endif |
1069 | #endif |
774 | } |
1070 | } |
775 | |
1071 | |
776 | static void noinline |
1072 | static void noinline |
777 | siginit (EV_P) |
1073 | evpipe_init (EV_P) |
778 | { |
1074 | { |
|
|
1075 | if (!ev_is_active (&pipe_w)) |
|
|
1076 | { |
|
|
1077 | #if EV_USE_EVENTFD |
|
|
1078 | if ((evfd = eventfd (0, 0)) >= 0) |
|
|
1079 | { |
|
|
1080 | evpipe [0] = -1; |
|
|
1081 | fd_intern (evfd); |
|
|
1082 | ev_io_set (&pipe_w, evfd, EV_READ); |
|
|
1083 | } |
|
|
1084 | else |
|
|
1085 | #endif |
|
|
1086 | { |
|
|
1087 | while (pipe (evpipe)) |
|
|
1088 | ev_syserr ("(libev) error creating signal/async pipe"); |
|
|
1089 | |
779 | fd_intern (sigpipe [0]); |
1090 | fd_intern (evpipe [0]); |
780 | fd_intern (sigpipe [1]); |
1091 | fd_intern (evpipe [1]); |
|
|
1092 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
|
|
1093 | } |
781 | |
1094 | |
782 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
|
|
783 | ev_io_start (EV_A_ &sigev); |
1095 | ev_io_start (EV_A_ &pipe_w); |
784 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1096 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
1097 | } |
|
|
1098 | } |
|
|
1099 | |
|
|
1100 | inline_size void |
|
|
1101 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1102 | { |
|
|
1103 | if (!*flag) |
|
|
1104 | { |
|
|
1105 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1106 | |
|
|
1107 | *flag = 1; |
|
|
1108 | |
|
|
1109 | #if EV_USE_EVENTFD |
|
|
1110 | if (evfd >= 0) |
|
|
1111 | { |
|
|
1112 | uint64_t counter = 1; |
|
|
1113 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
1114 | } |
|
|
1115 | else |
|
|
1116 | #endif |
|
|
1117 | write (evpipe [1], &old_errno, 1); |
|
|
1118 | |
|
|
1119 | errno = old_errno; |
|
|
1120 | } |
|
|
1121 | } |
|
|
1122 | |
|
|
1123 | /* called whenever the libev signal pipe */ |
|
|
1124 | /* got some events (signal, async) */ |
|
|
1125 | static void |
|
|
1126 | pipecb (EV_P_ ev_io *iow, int revents) |
|
|
1127 | { |
|
|
1128 | #if EV_USE_EVENTFD |
|
|
1129 | if (evfd >= 0) |
|
|
1130 | { |
|
|
1131 | uint64_t counter; |
|
|
1132 | read (evfd, &counter, sizeof (uint64_t)); |
|
|
1133 | } |
|
|
1134 | else |
|
|
1135 | #endif |
|
|
1136 | { |
|
|
1137 | char dummy; |
|
|
1138 | read (evpipe [0], &dummy, 1); |
|
|
1139 | } |
|
|
1140 | |
|
|
1141 | if (gotsig && ev_is_default_loop (EV_A)) |
|
|
1142 | { |
|
|
1143 | int signum; |
|
|
1144 | gotsig = 0; |
|
|
1145 | |
|
|
1146 | for (signum = signalmax; signum--; ) |
|
|
1147 | if (signals [signum].gotsig) |
|
|
1148 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
1149 | } |
|
|
1150 | |
|
|
1151 | #if EV_ASYNC_ENABLE |
|
|
1152 | if (gotasync) |
|
|
1153 | { |
|
|
1154 | int i; |
|
|
1155 | gotasync = 0; |
|
|
1156 | |
|
|
1157 | for (i = asynccnt; i--; ) |
|
|
1158 | if (asyncs [i]->sent) |
|
|
1159 | { |
|
|
1160 | asyncs [i]->sent = 0; |
|
|
1161 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
|
|
1162 | } |
|
|
1163 | } |
|
|
1164 | #endif |
785 | } |
1165 | } |
786 | |
1166 | |
787 | /*****************************************************************************/ |
1167 | /*****************************************************************************/ |
788 | |
1168 | |
|
|
1169 | static void |
|
|
1170 | ev_sighandler (int signum) |
|
|
1171 | { |
|
|
1172 | #if EV_MULTIPLICITY |
|
|
1173 | struct ev_loop *loop = &default_loop_struct; |
|
|
1174 | #endif |
|
|
1175 | |
|
|
1176 | #if _WIN32 |
|
|
1177 | signal (signum, ev_sighandler); |
|
|
1178 | #endif |
|
|
1179 | |
|
|
1180 | signals [signum - 1].gotsig = 1; |
|
|
1181 | evpipe_write (EV_A_ &gotsig); |
|
|
1182 | } |
|
|
1183 | |
|
|
1184 | void noinline |
|
|
1185 | ev_feed_signal_event (EV_P_ int signum) |
|
|
1186 | { |
|
|
1187 | WL w; |
|
|
1188 | |
|
|
1189 | #if EV_MULTIPLICITY |
|
|
1190 | assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1191 | #endif |
|
|
1192 | |
|
|
1193 | --signum; |
|
|
1194 | |
|
|
1195 | if (signum < 0 || signum >= signalmax) |
|
|
1196 | return; |
|
|
1197 | |
|
|
1198 | signals [signum].gotsig = 0; |
|
|
1199 | |
|
|
1200 | for (w = signals [signum].head; w; w = w->next) |
|
|
1201 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
1202 | } |
|
|
1203 | |
|
|
1204 | /*****************************************************************************/ |
|
|
1205 | |
789 | static ev_child *childs [EV_PID_HASHSIZE]; |
1206 | static WL childs [EV_PID_HASHSIZE]; |
790 | |
1207 | |
791 | #ifndef _WIN32 |
1208 | #ifndef _WIN32 |
792 | |
1209 | |
793 | static ev_signal childev; |
1210 | static ev_signal childev; |
794 | |
1211 | |
795 | void inline_speed |
1212 | #ifndef WIFCONTINUED |
|
|
1213 | # define WIFCONTINUED(status) 0 |
|
|
1214 | #endif |
|
|
1215 | |
|
|
1216 | /* handle a single child status event */ |
|
|
1217 | inline_speed void |
796 | child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) |
1218 | child_reap (EV_P_ int chain, int pid, int status) |
797 | { |
1219 | { |
798 | ev_child *w; |
1220 | ev_child *w; |
|
|
1221 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
799 | |
1222 | |
800 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1223 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1224 | { |
801 | if (w->pid == pid || !w->pid) |
1225 | if ((w->pid == pid || !w->pid) |
|
|
1226 | && (!traced || (w->flags & 1))) |
802 | { |
1227 | { |
803 | ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */ |
1228 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
804 | w->rpid = pid; |
1229 | w->rpid = pid; |
805 | w->rstatus = status; |
1230 | w->rstatus = status; |
806 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
1231 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
807 | } |
1232 | } |
|
|
1233 | } |
808 | } |
1234 | } |
809 | |
1235 | |
810 | #ifndef WCONTINUED |
1236 | #ifndef WCONTINUED |
811 | # define WCONTINUED 0 |
1237 | # define WCONTINUED 0 |
812 | #endif |
1238 | #endif |
813 | |
1239 | |
|
|
1240 | /* called on sigchld etc., calls waitpid */ |
814 | static void |
1241 | static void |
815 | childcb (EV_P_ ev_signal *sw, int revents) |
1242 | childcb (EV_P_ ev_signal *sw, int revents) |
816 | { |
1243 | { |
817 | int pid, status; |
1244 | int pid, status; |
818 | |
1245 | |
… | |
… | |
821 | if (!WCONTINUED |
1248 | if (!WCONTINUED |
822 | || errno != EINVAL |
1249 | || errno != EINVAL |
823 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
1250 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
824 | return; |
1251 | return; |
825 | |
1252 | |
826 | /* make sure we are called again until all childs have been reaped */ |
1253 | /* make sure we are called again until all children have been reaped */ |
827 | /* we need to do it this way so that the callback gets called before we continue */ |
1254 | /* we need to do it this way so that the callback gets called before we continue */ |
828 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1255 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
829 | |
1256 | |
830 | child_reap (EV_A_ sw, pid, pid, status); |
1257 | child_reap (EV_A_ pid, pid, status); |
831 | if (EV_PID_HASHSIZE > 1) |
1258 | if (EV_PID_HASHSIZE > 1) |
832 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1259 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
833 | } |
1260 | } |
834 | |
1261 | |
835 | #endif |
1262 | #endif |
836 | |
1263 | |
837 | /*****************************************************************************/ |
1264 | /*****************************************************************************/ |
… | |
… | |
899 | /* kqueue is borked on everything but netbsd apparently */ |
1326 | /* kqueue is borked on everything but netbsd apparently */ |
900 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1327 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
901 | flags &= ~EVBACKEND_KQUEUE; |
1328 | flags &= ~EVBACKEND_KQUEUE; |
902 | #endif |
1329 | #endif |
903 | #ifdef __APPLE__ |
1330 | #ifdef __APPLE__ |
904 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
1331 | /* only select works correctly on that "unix-certified" platform */ |
905 | flags &= ~EVBACKEND_POLL; |
1332 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
|
|
1333 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
906 | #endif |
1334 | #endif |
907 | |
1335 | |
908 | return flags; |
1336 | return flags; |
909 | } |
1337 | } |
910 | |
1338 | |
911 | unsigned int |
1339 | unsigned int |
912 | ev_embeddable_backends (void) |
1340 | ev_embeddable_backends (void) |
913 | { |
1341 | { |
914 | return EVBACKEND_EPOLL |
1342 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
915 | | EVBACKEND_KQUEUE |
1343 | |
916 | | EVBACKEND_PORT; |
1344 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
|
|
1345 | /* please fix it and tell me how to detect the fix */ |
|
|
1346 | flags &= ~EVBACKEND_EPOLL; |
|
|
1347 | |
|
|
1348 | return flags; |
917 | } |
1349 | } |
918 | |
1350 | |
919 | unsigned int |
1351 | unsigned int |
920 | ev_backend (EV_P) |
1352 | ev_backend (EV_P) |
921 | { |
1353 | { |
… | |
… | |
926 | ev_loop_count (EV_P) |
1358 | ev_loop_count (EV_P) |
927 | { |
1359 | { |
928 | return loop_count; |
1360 | return loop_count; |
929 | } |
1361 | } |
930 | |
1362 | |
|
|
1363 | unsigned int |
|
|
1364 | ev_loop_depth (EV_P) |
|
|
1365 | { |
|
|
1366 | return loop_depth; |
|
|
1367 | } |
|
|
1368 | |
|
|
1369 | void |
|
|
1370 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1371 | { |
|
|
1372 | io_blocktime = interval; |
|
|
1373 | } |
|
|
1374 | |
|
|
1375 | void |
|
|
1376 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1377 | { |
|
|
1378 | timeout_blocktime = interval; |
|
|
1379 | } |
|
|
1380 | |
|
|
1381 | /* initialise a loop structure, must be zero-initialised */ |
931 | static void noinline |
1382 | static void noinline |
932 | loop_init (EV_P_ unsigned int flags) |
1383 | loop_init (EV_P_ unsigned int flags) |
933 | { |
1384 | { |
934 | if (!backend) |
1385 | if (!backend) |
935 | { |
1386 | { |
|
|
1387 | #if EV_USE_REALTIME |
|
|
1388 | if (!have_realtime) |
|
|
1389 | { |
|
|
1390 | struct timespec ts; |
|
|
1391 | |
|
|
1392 | if (!clock_gettime (CLOCK_REALTIME, &ts)) |
|
|
1393 | have_realtime = 1; |
|
|
1394 | } |
|
|
1395 | #endif |
|
|
1396 | |
936 | #if EV_USE_MONOTONIC |
1397 | #if EV_USE_MONOTONIC |
|
|
1398 | if (!have_monotonic) |
937 | { |
1399 | { |
938 | struct timespec ts; |
1400 | struct timespec ts; |
|
|
1401 | |
939 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1402 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
940 | have_monotonic = 1; |
1403 | have_monotonic = 1; |
941 | } |
1404 | } |
942 | #endif |
1405 | #endif |
943 | |
1406 | |
944 | ev_rt_now = ev_time (); |
1407 | ev_rt_now = ev_time (); |
945 | mn_now = get_clock (); |
1408 | mn_now = get_clock (); |
946 | now_floor = mn_now; |
1409 | now_floor = mn_now; |
947 | rtmn_diff = ev_rt_now - mn_now; |
1410 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1411 | |
|
|
1412 | io_blocktime = 0.; |
|
|
1413 | timeout_blocktime = 0.; |
|
|
1414 | backend = 0; |
|
|
1415 | backend_fd = -1; |
|
|
1416 | gotasync = 0; |
|
|
1417 | #if EV_USE_INOTIFY |
|
|
1418 | fs_fd = -2; |
|
|
1419 | #endif |
948 | |
1420 | |
949 | /* pid check not overridable via env */ |
1421 | /* pid check not overridable via env */ |
950 | #ifndef _WIN32 |
1422 | #ifndef _WIN32 |
951 | if (flags & EVFLAG_FORKCHECK) |
1423 | if (flags & EVFLAG_FORKCHECK) |
952 | curpid = getpid (); |
1424 | curpid = getpid (); |
… | |
… | |
955 | if (!(flags & EVFLAG_NOENV) |
1427 | if (!(flags & EVFLAG_NOENV) |
956 | && !enable_secure () |
1428 | && !enable_secure () |
957 | && getenv ("LIBEV_FLAGS")) |
1429 | && getenv ("LIBEV_FLAGS")) |
958 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1430 | flags = atoi (getenv ("LIBEV_FLAGS")); |
959 | |
1431 | |
960 | if (!(flags & 0x0000ffffUL)) |
1432 | if (!(flags & 0x0000ffffU)) |
961 | flags |= ev_recommended_backends (); |
1433 | flags |= ev_recommended_backends (); |
962 | |
|
|
963 | backend = 0; |
|
|
964 | backend_fd = -1; |
|
|
965 | #if EV_USE_INOTIFY |
|
|
966 | fs_fd = -2; |
|
|
967 | #endif |
|
|
968 | |
1434 | |
969 | #if EV_USE_PORT |
1435 | #if EV_USE_PORT |
970 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1436 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
971 | #endif |
1437 | #endif |
972 | #if EV_USE_KQUEUE |
1438 | #if EV_USE_KQUEUE |
… | |
… | |
980 | #endif |
1446 | #endif |
981 | #if EV_USE_SELECT |
1447 | #if EV_USE_SELECT |
982 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1448 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
983 | #endif |
1449 | #endif |
984 | |
1450 | |
|
|
1451 | ev_prepare_init (&pending_w, pendingcb); |
|
|
1452 | |
985 | ev_init (&sigev, sigcb); |
1453 | ev_init (&pipe_w, pipecb); |
986 | ev_set_priority (&sigev, EV_MAXPRI); |
1454 | ev_set_priority (&pipe_w, EV_MAXPRI); |
987 | } |
1455 | } |
988 | } |
1456 | } |
989 | |
1457 | |
|
|
1458 | /* free up a loop structure */ |
990 | static void noinline |
1459 | static void noinline |
991 | loop_destroy (EV_P) |
1460 | loop_destroy (EV_P) |
992 | { |
1461 | { |
993 | int i; |
1462 | int i; |
|
|
1463 | |
|
|
1464 | if (ev_is_active (&pipe_w)) |
|
|
1465 | { |
|
|
1466 | ev_ref (EV_A); /* signal watcher */ |
|
|
1467 | ev_io_stop (EV_A_ &pipe_w); |
|
|
1468 | |
|
|
1469 | #if EV_USE_EVENTFD |
|
|
1470 | if (evfd >= 0) |
|
|
1471 | close (evfd); |
|
|
1472 | #endif |
|
|
1473 | |
|
|
1474 | if (evpipe [0] >= 0) |
|
|
1475 | { |
|
|
1476 | close (evpipe [0]); |
|
|
1477 | close (evpipe [1]); |
|
|
1478 | } |
|
|
1479 | } |
994 | |
1480 | |
995 | #if EV_USE_INOTIFY |
1481 | #if EV_USE_INOTIFY |
996 | if (fs_fd >= 0) |
1482 | if (fs_fd >= 0) |
997 | close (fs_fd); |
1483 | close (fs_fd); |
998 | #endif |
1484 | #endif |
… | |
… | |
1022 | #if EV_IDLE_ENABLE |
1508 | #if EV_IDLE_ENABLE |
1023 | array_free (idle, [i]); |
1509 | array_free (idle, [i]); |
1024 | #endif |
1510 | #endif |
1025 | } |
1511 | } |
1026 | |
1512 | |
|
|
1513 | ev_free (anfds); anfdmax = 0; |
|
|
1514 | |
1027 | /* have to use the microsoft-never-gets-it-right macro */ |
1515 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
1516 | array_free (rfeed, EMPTY); |
1028 | array_free (fdchange, EMPTY); |
1517 | array_free (fdchange, EMPTY); |
1029 | array_free (timer, EMPTY); |
1518 | array_free (timer, EMPTY); |
1030 | #if EV_PERIODIC_ENABLE |
1519 | #if EV_PERIODIC_ENABLE |
1031 | array_free (periodic, EMPTY); |
1520 | array_free (periodic, EMPTY); |
1032 | #endif |
1521 | #endif |
|
|
1522 | #if EV_FORK_ENABLE |
|
|
1523 | array_free (fork, EMPTY); |
|
|
1524 | #endif |
1033 | array_free (prepare, EMPTY); |
1525 | array_free (prepare, EMPTY); |
1034 | array_free (check, EMPTY); |
1526 | array_free (check, EMPTY); |
|
|
1527 | #if EV_ASYNC_ENABLE |
|
|
1528 | array_free (async, EMPTY); |
|
|
1529 | #endif |
1035 | |
1530 | |
1036 | backend = 0; |
1531 | backend = 0; |
1037 | } |
1532 | } |
1038 | |
1533 | |
|
|
1534 | #if EV_USE_INOTIFY |
1039 | void inline_size infy_fork (EV_P); |
1535 | inline_size void infy_fork (EV_P); |
|
|
1536 | #endif |
1040 | |
1537 | |
1041 | void inline_size |
1538 | inline_size void |
1042 | loop_fork (EV_P) |
1539 | loop_fork (EV_P) |
1043 | { |
1540 | { |
1044 | #if EV_USE_PORT |
1541 | #if EV_USE_PORT |
1045 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1542 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1046 | #endif |
1543 | #endif |
… | |
… | |
1052 | #endif |
1549 | #endif |
1053 | #if EV_USE_INOTIFY |
1550 | #if EV_USE_INOTIFY |
1054 | infy_fork (EV_A); |
1551 | infy_fork (EV_A); |
1055 | #endif |
1552 | #endif |
1056 | |
1553 | |
1057 | if (ev_is_active (&sigev)) |
1554 | if (ev_is_active (&pipe_w)) |
1058 | { |
1555 | { |
1059 | /* default loop */ |
1556 | /* this "locks" the handlers against writing to the pipe */ |
|
|
1557 | /* while we modify the fd vars */ |
|
|
1558 | gotsig = 1; |
|
|
1559 | #if EV_ASYNC_ENABLE |
|
|
1560 | gotasync = 1; |
|
|
1561 | #endif |
1060 | |
1562 | |
1061 | ev_ref (EV_A); |
1563 | ev_ref (EV_A); |
1062 | ev_io_stop (EV_A_ &sigev); |
1564 | ev_io_stop (EV_A_ &pipe_w); |
|
|
1565 | |
|
|
1566 | #if EV_USE_EVENTFD |
|
|
1567 | if (evfd >= 0) |
|
|
1568 | close (evfd); |
|
|
1569 | #endif |
|
|
1570 | |
|
|
1571 | if (evpipe [0] >= 0) |
|
|
1572 | { |
1063 | close (sigpipe [0]); |
1573 | close (evpipe [0]); |
1064 | close (sigpipe [1]); |
1574 | close (evpipe [1]); |
|
|
1575 | } |
1065 | |
1576 | |
1066 | while (pipe (sigpipe)) |
|
|
1067 | syserr ("(libev) error creating pipe"); |
|
|
1068 | |
|
|
1069 | siginit (EV_A); |
1577 | evpipe_init (EV_A); |
|
|
1578 | /* now iterate over everything, in case we missed something */ |
|
|
1579 | pipecb (EV_A_ &pipe_w, EV_READ); |
1070 | } |
1580 | } |
1071 | |
1581 | |
1072 | postfork = 0; |
1582 | postfork = 0; |
1073 | } |
1583 | } |
1074 | |
1584 | |
1075 | #if EV_MULTIPLICITY |
1585 | #if EV_MULTIPLICITY |
|
|
1586 | |
1076 | struct ev_loop * |
1587 | struct ev_loop * |
1077 | ev_loop_new (unsigned int flags) |
1588 | ev_loop_new (unsigned int flags) |
1078 | { |
1589 | { |
1079 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1590 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1080 | |
1591 | |
… | |
… | |
1096 | } |
1607 | } |
1097 | |
1608 | |
1098 | void |
1609 | void |
1099 | ev_loop_fork (EV_P) |
1610 | ev_loop_fork (EV_P) |
1100 | { |
1611 | { |
1101 | postfork = 1; |
1612 | postfork = 1; /* must be in line with ev_default_fork */ |
1102 | } |
1613 | } |
1103 | |
1614 | |
|
|
1615 | #if EV_VERIFY |
|
|
1616 | static void noinline |
|
|
1617 | verify_watcher (EV_P_ W w) |
|
|
1618 | { |
|
|
1619 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
|
|
1620 | |
|
|
1621 | if (w->pending) |
|
|
1622 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
|
|
1623 | } |
|
|
1624 | |
|
|
1625 | static void noinline |
|
|
1626 | verify_heap (EV_P_ ANHE *heap, int N) |
|
|
1627 | { |
|
|
1628 | int i; |
|
|
1629 | |
|
|
1630 | for (i = HEAP0; i < N + HEAP0; ++i) |
|
|
1631 | { |
|
|
1632 | assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
|
|
1633 | assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
|
|
1634 | assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
|
|
1635 | |
|
|
1636 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
|
|
1637 | } |
|
|
1638 | } |
|
|
1639 | |
|
|
1640 | static void noinline |
|
|
1641 | array_verify (EV_P_ W *ws, int cnt) |
|
|
1642 | { |
|
|
1643 | while (cnt--) |
|
|
1644 | { |
|
|
1645 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
|
|
1646 | verify_watcher (EV_A_ ws [cnt]); |
|
|
1647 | } |
|
|
1648 | } |
|
|
1649 | #endif |
|
|
1650 | |
|
|
1651 | void |
|
|
1652 | ev_loop_verify (EV_P) |
|
|
1653 | { |
|
|
1654 | #if EV_VERIFY |
|
|
1655 | int i; |
|
|
1656 | WL w; |
|
|
1657 | |
|
|
1658 | assert (activecnt >= -1); |
|
|
1659 | |
|
|
1660 | assert (fdchangemax >= fdchangecnt); |
|
|
1661 | for (i = 0; i < fdchangecnt; ++i) |
|
|
1662 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
|
|
1663 | |
|
|
1664 | assert (anfdmax >= 0); |
|
|
1665 | for (i = 0; i < anfdmax; ++i) |
|
|
1666 | for (w = anfds [i].head; w; w = w->next) |
|
|
1667 | { |
|
|
1668 | verify_watcher (EV_A_ (W)w); |
|
|
1669 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
|
|
1670 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
|
|
1671 | } |
|
|
1672 | |
|
|
1673 | assert (timermax >= timercnt); |
|
|
1674 | verify_heap (EV_A_ timers, timercnt); |
|
|
1675 | |
|
|
1676 | #if EV_PERIODIC_ENABLE |
|
|
1677 | assert (periodicmax >= periodiccnt); |
|
|
1678 | verify_heap (EV_A_ periodics, periodiccnt); |
|
|
1679 | #endif |
|
|
1680 | |
|
|
1681 | for (i = NUMPRI; i--; ) |
|
|
1682 | { |
|
|
1683 | assert (pendingmax [i] >= pendingcnt [i]); |
|
|
1684 | #if EV_IDLE_ENABLE |
|
|
1685 | assert (idleall >= 0); |
|
|
1686 | assert (idlemax [i] >= idlecnt [i]); |
|
|
1687 | array_verify (EV_A_ (W *)idles [i], idlecnt [i]); |
|
|
1688 | #endif |
|
|
1689 | } |
|
|
1690 | |
|
|
1691 | #if EV_FORK_ENABLE |
|
|
1692 | assert (forkmax >= forkcnt); |
|
|
1693 | array_verify (EV_A_ (W *)forks, forkcnt); |
|
|
1694 | #endif |
|
|
1695 | |
|
|
1696 | #if EV_ASYNC_ENABLE |
|
|
1697 | assert (asyncmax >= asynccnt); |
|
|
1698 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
|
|
1699 | #endif |
|
|
1700 | |
|
|
1701 | assert (preparemax >= preparecnt); |
|
|
1702 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
1703 | |
|
|
1704 | assert (checkmax >= checkcnt); |
|
|
1705 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
1706 | |
|
|
1707 | # if 0 |
|
|
1708 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1709 | for (signum = signalmax; signum--; ) if (signals [signum].gotsig) |
1104 | #endif |
1710 | # endif |
|
|
1711 | #endif |
|
|
1712 | } |
|
|
1713 | |
|
|
1714 | #endif /* multiplicity */ |
1105 | |
1715 | |
1106 | #if EV_MULTIPLICITY |
1716 | #if EV_MULTIPLICITY |
1107 | struct ev_loop * |
1717 | struct ev_loop * |
1108 | ev_default_loop_init (unsigned int flags) |
1718 | ev_default_loop_init (unsigned int flags) |
1109 | #else |
1719 | #else |
1110 | int |
1720 | int |
1111 | ev_default_loop (unsigned int flags) |
1721 | ev_default_loop (unsigned int flags) |
1112 | #endif |
1722 | #endif |
1113 | { |
1723 | { |
1114 | if (sigpipe [0] == sigpipe [1]) |
|
|
1115 | if (pipe (sigpipe)) |
|
|
1116 | return 0; |
|
|
1117 | |
|
|
1118 | if (!ev_default_loop_ptr) |
1724 | if (!ev_default_loop_ptr) |
1119 | { |
1725 | { |
1120 | #if EV_MULTIPLICITY |
1726 | #if EV_MULTIPLICITY |
1121 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1727 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1122 | #else |
1728 | #else |
… | |
… | |
1125 | |
1731 | |
1126 | loop_init (EV_A_ flags); |
1732 | loop_init (EV_A_ flags); |
1127 | |
1733 | |
1128 | if (ev_backend (EV_A)) |
1734 | if (ev_backend (EV_A)) |
1129 | { |
1735 | { |
1130 | siginit (EV_A); |
|
|
1131 | |
|
|
1132 | #ifndef _WIN32 |
1736 | #ifndef _WIN32 |
1133 | ev_signal_init (&childev, childcb, SIGCHLD); |
1737 | ev_signal_init (&childev, childcb, SIGCHLD); |
1134 | ev_set_priority (&childev, EV_MAXPRI); |
1738 | ev_set_priority (&childev, EV_MAXPRI); |
1135 | ev_signal_start (EV_A_ &childev); |
1739 | ev_signal_start (EV_A_ &childev); |
1136 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1740 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
… | |
… | |
1148 | { |
1752 | { |
1149 | #if EV_MULTIPLICITY |
1753 | #if EV_MULTIPLICITY |
1150 | struct ev_loop *loop = ev_default_loop_ptr; |
1754 | struct ev_loop *loop = ev_default_loop_ptr; |
1151 | #endif |
1755 | #endif |
1152 | |
1756 | |
|
|
1757 | ev_default_loop_ptr = 0; |
|
|
1758 | |
1153 | #ifndef _WIN32 |
1759 | #ifndef _WIN32 |
1154 | ev_ref (EV_A); /* child watcher */ |
1760 | ev_ref (EV_A); /* child watcher */ |
1155 | ev_signal_stop (EV_A_ &childev); |
1761 | ev_signal_stop (EV_A_ &childev); |
1156 | #endif |
1762 | #endif |
1157 | |
1763 | |
1158 | ev_ref (EV_A); /* signal watcher */ |
|
|
1159 | ev_io_stop (EV_A_ &sigev); |
|
|
1160 | |
|
|
1161 | close (sigpipe [0]); sigpipe [0] = 0; |
|
|
1162 | close (sigpipe [1]); sigpipe [1] = 0; |
|
|
1163 | |
|
|
1164 | loop_destroy (EV_A); |
1764 | loop_destroy (EV_A); |
1165 | } |
1765 | } |
1166 | |
1766 | |
1167 | void |
1767 | void |
1168 | ev_default_fork (void) |
1768 | ev_default_fork (void) |
1169 | { |
1769 | { |
1170 | #if EV_MULTIPLICITY |
1770 | #if EV_MULTIPLICITY |
1171 | struct ev_loop *loop = ev_default_loop_ptr; |
1771 | struct ev_loop *loop = ev_default_loop_ptr; |
1172 | #endif |
1772 | #endif |
1173 | |
1773 | |
1174 | if (backend) |
1774 | postfork = 1; /* must be in line with ev_loop_fork */ |
1175 | postfork = 1; |
|
|
1176 | } |
1775 | } |
1177 | |
1776 | |
1178 | /*****************************************************************************/ |
1777 | /*****************************************************************************/ |
1179 | |
1778 | |
1180 | void |
1779 | void |
1181 | ev_invoke (EV_P_ void *w, int revents) |
1780 | ev_invoke (EV_P_ void *w, int revents) |
1182 | { |
1781 | { |
1183 | EV_CB_INVOKE ((W)w, revents); |
1782 | EV_CB_INVOKE ((W)w, revents); |
1184 | } |
1783 | } |
1185 | |
1784 | |
1186 | void inline_speed |
1785 | inline_speed void |
1187 | call_pending (EV_P) |
1786 | call_pending (EV_P) |
1188 | { |
1787 | { |
1189 | int pri; |
1788 | int pri; |
1190 | |
1789 | |
1191 | for (pri = NUMPRI; pri--; ) |
1790 | for (pri = NUMPRI; pri--; ) |
1192 | while (pendingcnt [pri]) |
1791 | while (pendingcnt [pri]) |
1193 | { |
1792 | { |
1194 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1793 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1195 | |
1794 | |
1196 | if (expect_true (p->w)) |
|
|
1197 | { |
|
|
1198 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
1795 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
|
|
1796 | /* ^ this is no longer true, as pending_w could be here */ |
1199 | |
1797 | |
1200 | p->w->pending = 0; |
1798 | p->w->pending = 0; |
1201 | EV_CB_INVOKE (p->w, p->events); |
1799 | EV_CB_INVOKE (p->w, p->events); |
1202 | } |
1800 | EV_FREQUENT_CHECK; |
1203 | } |
1801 | } |
1204 | } |
1802 | } |
1205 | |
1803 | |
1206 | void inline_size |
|
|
1207 | timers_reify (EV_P) |
|
|
1208 | { |
|
|
1209 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
|
|
1210 | { |
|
|
1211 | ev_timer *w = timers [0]; |
|
|
1212 | |
|
|
1213 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1214 | |
|
|
1215 | /* first reschedule or stop timer */ |
|
|
1216 | if (w->repeat) |
|
|
1217 | { |
|
|
1218 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1219 | |
|
|
1220 | ((WT)w)->at += w->repeat; |
|
|
1221 | if (((WT)w)->at < mn_now) |
|
|
1222 | ((WT)w)->at = mn_now; |
|
|
1223 | |
|
|
1224 | downheap ((WT *)timers, timercnt, 0); |
|
|
1225 | } |
|
|
1226 | else |
|
|
1227 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1228 | |
|
|
1229 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
|
|
1230 | } |
|
|
1231 | } |
|
|
1232 | |
|
|
1233 | #if EV_PERIODIC_ENABLE |
|
|
1234 | void inline_size |
|
|
1235 | periodics_reify (EV_P) |
|
|
1236 | { |
|
|
1237 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
|
|
1238 | { |
|
|
1239 | ev_periodic *w = periodics [0]; |
|
|
1240 | |
|
|
1241 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
1242 | |
|
|
1243 | /* first reschedule or stop timer */ |
|
|
1244 | if (w->reschedule_cb) |
|
|
1245 | { |
|
|
1246 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); |
|
|
1247 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
|
|
1248 | downheap ((WT *)periodics, periodiccnt, 0); |
|
|
1249 | } |
|
|
1250 | else if (w->interval) |
|
|
1251 | { |
|
|
1252 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1253 | if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval; |
|
|
1254 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
|
|
1255 | downheap ((WT *)periodics, periodiccnt, 0); |
|
|
1256 | } |
|
|
1257 | else |
|
|
1258 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1259 | |
|
|
1260 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
|
|
1261 | } |
|
|
1262 | } |
|
|
1263 | |
|
|
1264 | static void noinline |
|
|
1265 | periodics_reschedule (EV_P) |
|
|
1266 | { |
|
|
1267 | int i; |
|
|
1268 | |
|
|
1269 | /* adjust periodics after time jump */ |
|
|
1270 | for (i = 0; i < periodiccnt; ++i) |
|
|
1271 | { |
|
|
1272 | ev_periodic *w = periodics [i]; |
|
|
1273 | |
|
|
1274 | if (w->reschedule_cb) |
|
|
1275 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
|
|
1276 | else if (w->interval) |
|
|
1277 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1278 | } |
|
|
1279 | |
|
|
1280 | /* now rebuild the heap */ |
|
|
1281 | for (i = periodiccnt >> 1; i--; ) |
|
|
1282 | downheap ((WT *)periodics, periodiccnt, i); |
|
|
1283 | } |
|
|
1284 | #endif |
|
|
1285 | |
|
|
1286 | #if EV_IDLE_ENABLE |
1804 | #if EV_IDLE_ENABLE |
1287 | void inline_size |
1805 | /* make idle watchers pending. this handles the "call-idle */ |
|
|
1806 | /* only when higher priorities are idle" logic */ |
|
|
1807 | inline_size void |
1288 | idle_reify (EV_P) |
1808 | idle_reify (EV_P) |
1289 | { |
1809 | { |
1290 | if (expect_false (idleall)) |
1810 | if (expect_false (idleall)) |
1291 | { |
1811 | { |
1292 | int pri; |
1812 | int pri; |
… | |
… | |
1304 | } |
1824 | } |
1305 | } |
1825 | } |
1306 | } |
1826 | } |
1307 | #endif |
1827 | #endif |
1308 | |
1828 | |
1309 | int inline_size |
1829 | /* make timers pending */ |
1310 | time_update_monotonic (EV_P) |
1830 | inline_size void |
|
|
1831 | timers_reify (EV_P) |
1311 | { |
1832 | { |
|
|
1833 | EV_FREQUENT_CHECK; |
|
|
1834 | |
|
|
1835 | if (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
|
|
1836 | { |
|
|
1837 | do |
|
|
1838 | { |
|
|
1839 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
|
|
1840 | |
|
|
1841 | /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1842 | |
|
|
1843 | /* first reschedule or stop timer */ |
|
|
1844 | if (w->repeat) |
|
|
1845 | { |
|
|
1846 | ev_at (w) += w->repeat; |
|
|
1847 | if (ev_at (w) < mn_now) |
|
|
1848 | ev_at (w) = mn_now; |
|
|
1849 | |
|
|
1850 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1851 | |
|
|
1852 | ANHE_at_cache (timers [HEAP0]); |
|
|
1853 | downheap (timers, timercnt, HEAP0); |
|
|
1854 | } |
|
|
1855 | else |
|
|
1856 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1857 | |
|
|
1858 | EV_FREQUENT_CHECK; |
|
|
1859 | feed_reverse (EV_A_ (W)w); |
|
|
1860 | } |
|
|
1861 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
|
|
1862 | |
|
|
1863 | feed_reverse_done (EV_A_ EV_TIMEOUT); |
|
|
1864 | } |
|
|
1865 | } |
|
|
1866 | |
|
|
1867 | #if EV_PERIODIC_ENABLE |
|
|
1868 | /* make periodics pending */ |
|
|
1869 | inline_size void |
|
|
1870 | periodics_reify (EV_P) |
|
|
1871 | { |
|
|
1872 | EV_FREQUENT_CHECK; |
|
|
1873 | |
|
|
1874 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
|
|
1875 | { |
|
|
1876 | int feed_count = 0; |
|
|
1877 | |
|
|
1878 | do |
|
|
1879 | { |
|
|
1880 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
|
|
1881 | |
|
|
1882 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
1883 | |
|
|
1884 | /* first reschedule or stop timer */ |
|
|
1885 | if (w->reschedule_cb) |
|
|
1886 | { |
|
|
1887 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
1888 | |
|
|
1889 | assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
|
|
1890 | |
|
|
1891 | ANHE_at_cache (periodics [HEAP0]); |
|
|
1892 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1893 | } |
|
|
1894 | else if (w->interval) |
|
|
1895 | { |
|
|
1896 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1897 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
1898 | /* this might happen because of floating point inexactness */ |
|
|
1899 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
1900 | { |
|
|
1901 | ev_at (w) += w->interval; |
|
|
1902 | |
|
|
1903 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
1904 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
1905 | /* has effectively asked to get triggered more often than possible */ |
|
|
1906 | if (ev_at (w) < ev_rt_now) |
|
|
1907 | ev_at (w) = ev_rt_now; |
|
|
1908 | } |
|
|
1909 | |
|
|
1910 | ANHE_at_cache (periodics [HEAP0]); |
|
|
1911 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1912 | } |
|
|
1913 | else |
|
|
1914 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1915 | |
|
|
1916 | EV_FREQUENT_CHECK; |
|
|
1917 | feed_reverse (EV_A_ (W)w); |
|
|
1918 | } |
|
|
1919 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now); |
|
|
1920 | |
|
|
1921 | feed_reverse_done (EV_A_ EV_PERIODIC); |
|
|
1922 | } |
|
|
1923 | } |
|
|
1924 | |
|
|
1925 | /* simply recalculate all periodics */ |
|
|
1926 | /* TODO: maybe ensure that at leats one event happens when jumping forward? */ |
|
|
1927 | static void noinline |
|
|
1928 | periodics_reschedule (EV_P) |
|
|
1929 | { |
|
|
1930 | int i; |
|
|
1931 | |
|
|
1932 | /* adjust periodics after time jump */ |
|
|
1933 | for (i = HEAP0; i < periodiccnt + HEAP0; ++i) |
|
|
1934 | { |
|
|
1935 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
|
|
1936 | |
|
|
1937 | if (w->reschedule_cb) |
|
|
1938 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
1939 | else if (w->interval) |
|
|
1940 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1941 | |
|
|
1942 | ANHE_at_cache (periodics [i]); |
|
|
1943 | } |
|
|
1944 | |
|
|
1945 | reheap (periodics, periodiccnt); |
|
|
1946 | } |
|
|
1947 | #endif |
|
|
1948 | |
|
|
1949 | /* adjust all timers by a given offset */ |
|
|
1950 | static void noinline |
|
|
1951 | timers_reschedule (EV_P_ ev_tstamp adjust) |
|
|
1952 | { |
|
|
1953 | int i; |
|
|
1954 | |
|
|
1955 | for (i = 0; i < timercnt; ++i) |
|
|
1956 | { |
|
|
1957 | ANHE *he = timers + i + HEAP0; |
|
|
1958 | ANHE_w (*he)->at += adjust; |
|
|
1959 | ANHE_at_cache (*he); |
|
|
1960 | } |
|
|
1961 | } |
|
|
1962 | |
|
|
1963 | /* fetch new monotonic and realtime times from the kernel */ |
|
|
1964 | /* also detetc if there was a timejump, and act accordingly */ |
|
|
1965 | inline_speed void |
|
|
1966 | time_update (EV_P_ ev_tstamp max_block) |
|
|
1967 | { |
|
|
1968 | #if EV_USE_MONOTONIC |
|
|
1969 | if (expect_true (have_monotonic)) |
|
|
1970 | { |
|
|
1971 | int i; |
|
|
1972 | ev_tstamp odiff = rtmn_diff; |
|
|
1973 | |
1312 | mn_now = get_clock (); |
1974 | mn_now = get_clock (); |
1313 | |
1975 | |
|
|
1976 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
|
|
1977 | /* interpolate in the meantime */ |
1314 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1978 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1315 | { |
1979 | { |
1316 | ev_rt_now = rtmn_diff + mn_now; |
1980 | ev_rt_now = rtmn_diff + mn_now; |
1317 | return 0; |
1981 | return; |
1318 | } |
1982 | } |
1319 | else |
1983 | |
1320 | { |
|
|
1321 | now_floor = mn_now; |
1984 | now_floor = mn_now; |
1322 | ev_rt_now = ev_time (); |
1985 | ev_rt_now = ev_time (); |
1323 | return 1; |
|
|
1324 | } |
|
|
1325 | } |
|
|
1326 | |
1986 | |
1327 | void inline_size |
1987 | /* loop a few times, before making important decisions. |
1328 | time_update (EV_P) |
1988 | * on the choice of "4": one iteration isn't enough, |
1329 | { |
1989 | * in case we get preempted during the calls to |
1330 | int i; |
1990 | * ev_time and get_clock. a second call is almost guaranteed |
1331 | |
1991 | * to succeed in that case, though. and looping a few more times |
1332 | #if EV_USE_MONOTONIC |
1992 | * doesn't hurt either as we only do this on time-jumps or |
1333 | if (expect_true (have_monotonic)) |
1993 | * in the unlikely event of having been preempted here. |
1334 | { |
1994 | */ |
1335 | if (time_update_monotonic (EV_A)) |
1995 | for (i = 4; --i; ) |
1336 | { |
1996 | { |
1337 | ev_tstamp odiff = rtmn_diff; |
|
|
1338 | |
|
|
1339 | /* loop a few times, before making important decisions. |
|
|
1340 | * on the choice of "4": one iteration isn't enough, |
|
|
1341 | * in case we get preempted during the calls to |
|
|
1342 | * ev_time and get_clock. a second call is almost guaranteed |
|
|
1343 | * to succeed in that case, though. and looping a few more times |
|
|
1344 | * doesn't hurt either as we only do this on time-jumps or |
|
|
1345 | * in the unlikely event of having been preempted here. |
|
|
1346 | */ |
|
|
1347 | for (i = 4; --i; ) |
|
|
1348 | { |
|
|
1349 | rtmn_diff = ev_rt_now - mn_now; |
1997 | rtmn_diff = ev_rt_now - mn_now; |
1350 | |
1998 | |
1351 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1999 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
1352 | return; /* all is well */ |
2000 | return; /* all is well */ |
1353 | |
2001 | |
1354 | ev_rt_now = ev_time (); |
2002 | ev_rt_now = ev_time (); |
1355 | mn_now = get_clock (); |
2003 | mn_now = get_clock (); |
1356 | now_floor = mn_now; |
2004 | now_floor = mn_now; |
1357 | } |
2005 | } |
1358 | |
2006 | |
|
|
2007 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
2008 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1359 | # if EV_PERIODIC_ENABLE |
2009 | # if EV_PERIODIC_ENABLE |
1360 | periodics_reschedule (EV_A); |
2010 | periodics_reschedule (EV_A); |
1361 | # endif |
2011 | # endif |
1362 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1363 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1364 | } |
|
|
1365 | } |
2012 | } |
1366 | else |
2013 | else |
1367 | #endif |
2014 | #endif |
1368 | { |
2015 | { |
1369 | ev_rt_now = ev_time (); |
2016 | ev_rt_now = ev_time (); |
1370 | |
2017 | |
1371 | if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
2018 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
1372 | { |
2019 | { |
|
|
2020 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
2021 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
1373 | #if EV_PERIODIC_ENABLE |
2022 | #if EV_PERIODIC_ENABLE |
1374 | periodics_reschedule (EV_A); |
2023 | periodics_reschedule (EV_A); |
1375 | #endif |
2024 | #endif |
1376 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1377 | for (i = 0; i < timercnt; ++i) |
|
|
1378 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
|
|
1379 | } |
2025 | } |
1380 | |
2026 | |
1381 | mn_now = ev_rt_now; |
2027 | mn_now = ev_rt_now; |
1382 | } |
2028 | } |
1383 | } |
2029 | } |
1384 | |
2030 | |
1385 | void |
2031 | void |
1386 | ev_ref (EV_P) |
|
|
1387 | { |
|
|
1388 | ++activecnt; |
|
|
1389 | } |
|
|
1390 | |
|
|
1391 | void |
|
|
1392 | ev_unref (EV_P) |
|
|
1393 | { |
|
|
1394 | --activecnt; |
|
|
1395 | } |
|
|
1396 | |
|
|
1397 | static int loop_done; |
|
|
1398 | |
|
|
1399 | void |
|
|
1400 | ev_loop (EV_P_ int flags) |
2032 | ev_loop (EV_P_ int flags) |
1401 | { |
2033 | { |
1402 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) |
2034 | ++loop_depth; |
1403 | ? EVUNLOOP_ONE |
2035 | |
1404 | : EVUNLOOP_CANCEL; |
2036 | loop_done = EVUNLOOP_CANCEL; |
1405 | |
2037 | |
1406 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
2038 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
1407 | |
2039 | |
1408 | do |
2040 | do |
1409 | { |
2041 | { |
|
|
2042 | #if EV_VERIFY >= 2 |
|
|
2043 | ev_loop_verify (EV_A); |
|
|
2044 | #endif |
|
|
2045 | |
1410 | #ifndef _WIN32 |
2046 | #ifndef _WIN32 |
1411 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2047 | if (expect_false (curpid)) /* penalise the forking check even more */ |
1412 | if (expect_false (getpid () != curpid)) |
2048 | if (expect_false (getpid () != curpid)) |
1413 | { |
2049 | { |
1414 | curpid = getpid (); |
2050 | curpid = getpid (); |
… | |
… | |
1431 | { |
2067 | { |
1432 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2068 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1433 | call_pending (EV_A); |
2069 | call_pending (EV_A); |
1434 | } |
2070 | } |
1435 | |
2071 | |
1436 | if (expect_false (!activecnt)) |
|
|
1437 | break; |
|
|
1438 | |
|
|
1439 | /* we might have forked, so reify kernel state if necessary */ |
2072 | /* we might have forked, so reify kernel state if necessary */ |
1440 | if (expect_false (postfork)) |
2073 | if (expect_false (postfork)) |
1441 | loop_fork (EV_A); |
2074 | loop_fork (EV_A); |
1442 | |
2075 | |
1443 | /* update fd-related kernel structures */ |
2076 | /* update fd-related kernel structures */ |
1444 | fd_reify (EV_A); |
2077 | fd_reify (EV_A); |
1445 | |
2078 | |
1446 | /* calculate blocking time */ |
2079 | /* calculate blocking time */ |
1447 | { |
2080 | { |
1448 | ev_tstamp block; |
2081 | ev_tstamp waittime = 0.; |
|
|
2082 | ev_tstamp sleeptime = 0.; |
1449 | |
2083 | |
1450 | if (expect_false (flags & EVLOOP_NONBLOCK || idleall || !activecnt)) |
2084 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
1451 | block = 0.; /* do not block at all */ |
|
|
1452 | else |
|
|
1453 | { |
2085 | { |
|
|
2086 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2087 | ev_tstamp prev_mn_now = mn_now; |
|
|
2088 | |
1454 | /* update time to cancel out callback processing overhead */ |
2089 | /* update time to cancel out callback processing overhead */ |
1455 | #if EV_USE_MONOTONIC |
|
|
1456 | if (expect_true (have_monotonic)) |
|
|
1457 | time_update_monotonic (EV_A); |
2090 | time_update (EV_A_ 1e100); |
1458 | else |
|
|
1459 | #endif |
|
|
1460 | { |
|
|
1461 | ev_rt_now = ev_time (); |
|
|
1462 | mn_now = ev_rt_now; |
|
|
1463 | } |
|
|
1464 | |
2091 | |
1465 | block = MAX_BLOCKTIME; |
2092 | waittime = MAX_BLOCKTIME; |
1466 | |
2093 | |
1467 | if (timercnt) |
2094 | if (timercnt) |
1468 | { |
2095 | { |
1469 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
2096 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
1470 | if (block > to) block = to; |
2097 | if (waittime > to) waittime = to; |
1471 | } |
2098 | } |
1472 | |
2099 | |
1473 | #if EV_PERIODIC_ENABLE |
2100 | #if EV_PERIODIC_ENABLE |
1474 | if (periodiccnt) |
2101 | if (periodiccnt) |
1475 | { |
2102 | { |
1476 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
2103 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
1477 | if (block > to) block = to; |
2104 | if (waittime > to) waittime = to; |
1478 | } |
2105 | } |
1479 | #endif |
2106 | #endif |
1480 | |
2107 | |
|
|
2108 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
|
|
2109 | if (expect_false (waittime < timeout_blocktime)) |
|
|
2110 | waittime = timeout_blocktime; |
|
|
2111 | |
|
|
2112 | /* extra check because io_blocktime is commonly 0 */ |
1481 | if (expect_false (block < 0.)) block = 0.; |
2113 | if (expect_false (io_blocktime)) |
|
|
2114 | { |
|
|
2115 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
|
|
2116 | |
|
|
2117 | if (sleeptime > waittime - backend_fudge) |
|
|
2118 | sleeptime = waittime - backend_fudge; |
|
|
2119 | |
|
|
2120 | if (expect_true (sleeptime > 0.)) |
|
|
2121 | { |
|
|
2122 | ev_sleep (sleeptime); |
|
|
2123 | waittime -= sleeptime; |
|
|
2124 | } |
|
|
2125 | } |
1482 | } |
2126 | } |
1483 | |
2127 | |
1484 | ++loop_count; |
2128 | ++loop_count; |
1485 | backend_poll (EV_A_ block); |
2129 | backend_poll (EV_A_ waittime); |
|
|
2130 | |
|
|
2131 | /* update ev_rt_now, do magic */ |
|
|
2132 | time_update (EV_A_ waittime + sleeptime); |
1486 | } |
2133 | } |
1487 | |
|
|
1488 | /* update ev_rt_now, do magic */ |
|
|
1489 | time_update (EV_A); |
|
|
1490 | |
2134 | |
1491 | /* queue pending timers and reschedule them */ |
2135 | /* queue pending timers and reschedule them */ |
1492 | timers_reify (EV_A); /* relative timers called last */ |
2136 | timers_reify (EV_A); /* relative timers called last */ |
1493 | #if EV_PERIODIC_ENABLE |
2137 | #if EV_PERIODIC_ENABLE |
1494 | periodics_reify (EV_A); /* absolute timers called first */ |
2138 | periodics_reify (EV_A); /* absolute timers called first */ |
… | |
… | |
1502 | /* queue check watchers, to be executed first */ |
2146 | /* queue check watchers, to be executed first */ |
1503 | if (expect_false (checkcnt)) |
2147 | if (expect_false (checkcnt)) |
1504 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2148 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1505 | |
2149 | |
1506 | call_pending (EV_A); |
2150 | call_pending (EV_A); |
1507 | |
|
|
1508 | } |
2151 | } |
1509 | while (expect_true (activecnt && !loop_done)); |
2152 | while (expect_true ( |
|
|
2153 | activecnt |
|
|
2154 | && !loop_done |
|
|
2155 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
|
|
2156 | )); |
1510 | |
2157 | |
1511 | if (loop_done == EVUNLOOP_ONE) |
2158 | if (loop_done == EVUNLOOP_ONE) |
1512 | loop_done = EVUNLOOP_CANCEL; |
2159 | loop_done = EVUNLOOP_CANCEL; |
|
|
2160 | |
|
|
2161 | --loop_depth; |
1513 | } |
2162 | } |
1514 | |
2163 | |
1515 | void |
2164 | void |
1516 | ev_unloop (EV_P_ int how) |
2165 | ev_unloop (EV_P_ int how) |
1517 | { |
2166 | { |
1518 | loop_done = how; |
2167 | loop_done = how; |
1519 | } |
2168 | } |
1520 | |
2169 | |
|
|
2170 | void |
|
|
2171 | ev_ref (EV_P) |
|
|
2172 | { |
|
|
2173 | ++activecnt; |
|
|
2174 | } |
|
|
2175 | |
|
|
2176 | void |
|
|
2177 | ev_unref (EV_P) |
|
|
2178 | { |
|
|
2179 | --activecnt; |
|
|
2180 | } |
|
|
2181 | |
|
|
2182 | void |
|
|
2183 | ev_now_update (EV_P) |
|
|
2184 | { |
|
|
2185 | time_update (EV_A_ 1e100); |
|
|
2186 | } |
|
|
2187 | |
|
|
2188 | void |
|
|
2189 | ev_suspend (EV_P) |
|
|
2190 | { |
|
|
2191 | ev_now_update (EV_A); |
|
|
2192 | } |
|
|
2193 | |
|
|
2194 | void |
|
|
2195 | ev_resume (EV_P) |
|
|
2196 | { |
|
|
2197 | ev_tstamp mn_prev = mn_now; |
|
|
2198 | |
|
|
2199 | ev_now_update (EV_A); |
|
|
2200 | timers_reschedule (EV_A_ mn_now - mn_prev); |
|
|
2201 | #if EV_PERIODIC_ENABLE |
|
|
2202 | /* TODO: really do this? */ |
|
|
2203 | periodics_reschedule (EV_A); |
|
|
2204 | #endif |
|
|
2205 | } |
|
|
2206 | |
1521 | /*****************************************************************************/ |
2207 | /*****************************************************************************/ |
|
|
2208 | /* singly-linked list management, used when the expected list length is short */ |
1522 | |
2209 | |
1523 | void inline_size |
2210 | inline_size void |
1524 | wlist_add (WL *head, WL elem) |
2211 | wlist_add (WL *head, WL elem) |
1525 | { |
2212 | { |
1526 | elem->next = *head; |
2213 | elem->next = *head; |
1527 | *head = elem; |
2214 | *head = elem; |
1528 | } |
2215 | } |
1529 | |
2216 | |
1530 | void inline_size |
2217 | inline_size void |
1531 | wlist_del (WL *head, WL elem) |
2218 | wlist_del (WL *head, WL elem) |
1532 | { |
2219 | { |
1533 | while (*head) |
2220 | while (*head) |
1534 | { |
2221 | { |
1535 | if (*head == elem) |
2222 | if (*head == elem) |
… | |
… | |
1540 | |
2227 | |
1541 | head = &(*head)->next; |
2228 | head = &(*head)->next; |
1542 | } |
2229 | } |
1543 | } |
2230 | } |
1544 | |
2231 | |
1545 | void inline_speed |
2232 | /* internal, faster, version of ev_clear_pending */ |
|
|
2233 | inline_speed void |
1546 | clear_pending (EV_P_ W w) |
2234 | clear_pending (EV_P_ W w) |
1547 | { |
2235 | { |
1548 | if (w->pending) |
2236 | if (w->pending) |
1549 | { |
2237 | { |
1550 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
2238 | pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w; |
1551 | w->pending = 0; |
2239 | w->pending = 0; |
1552 | } |
2240 | } |
1553 | } |
2241 | } |
1554 | |
2242 | |
1555 | int |
2243 | int |
… | |
… | |
1559 | int pending = w_->pending; |
2247 | int pending = w_->pending; |
1560 | |
2248 | |
1561 | if (expect_true (pending)) |
2249 | if (expect_true (pending)) |
1562 | { |
2250 | { |
1563 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
2251 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
2252 | p->w = (W)&pending_w; |
1564 | w_->pending = 0; |
2253 | w_->pending = 0; |
1565 | p->w = 0; |
|
|
1566 | return p->events; |
2254 | return p->events; |
1567 | } |
2255 | } |
1568 | else |
2256 | else |
1569 | return 0; |
2257 | return 0; |
1570 | } |
2258 | } |
1571 | |
2259 | |
1572 | void inline_size |
2260 | inline_size void |
1573 | pri_adjust (EV_P_ W w) |
2261 | pri_adjust (EV_P_ W w) |
1574 | { |
2262 | { |
1575 | int pri = w->priority; |
2263 | int pri = w->priority; |
1576 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2264 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
1577 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2265 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
1578 | w->priority = pri; |
2266 | w->priority = pri; |
1579 | } |
2267 | } |
1580 | |
2268 | |
1581 | void inline_speed |
2269 | inline_speed void |
1582 | ev_start (EV_P_ W w, int active) |
2270 | ev_start (EV_P_ W w, int active) |
1583 | { |
2271 | { |
1584 | pri_adjust (EV_A_ w); |
2272 | pri_adjust (EV_A_ w); |
1585 | w->active = active; |
2273 | w->active = active; |
1586 | ev_ref (EV_A); |
2274 | ev_ref (EV_A); |
1587 | } |
2275 | } |
1588 | |
2276 | |
1589 | void inline_size |
2277 | inline_size void |
1590 | ev_stop (EV_P_ W w) |
2278 | ev_stop (EV_P_ W w) |
1591 | { |
2279 | { |
1592 | ev_unref (EV_A); |
2280 | ev_unref (EV_A); |
1593 | w->active = 0; |
2281 | w->active = 0; |
1594 | } |
2282 | } |
… | |
… | |
1601 | int fd = w->fd; |
2289 | int fd = w->fd; |
1602 | |
2290 | |
1603 | if (expect_false (ev_is_active (w))) |
2291 | if (expect_false (ev_is_active (w))) |
1604 | return; |
2292 | return; |
1605 | |
2293 | |
1606 | assert (("ev_io_start called with negative fd", fd >= 0)); |
2294 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
|
|
2295 | assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
|
|
2296 | |
|
|
2297 | EV_FREQUENT_CHECK; |
1607 | |
2298 | |
1608 | ev_start (EV_A_ (W)w, 1); |
2299 | ev_start (EV_A_ (W)w, 1); |
1609 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
2300 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
1610 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
2301 | wlist_add (&anfds[fd].head, (WL)w); |
1611 | |
2302 | |
1612 | fd_change (EV_A_ fd); |
2303 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | 1); |
|
|
2304 | w->events &= ~EV__IOFDSET; |
|
|
2305 | |
|
|
2306 | EV_FREQUENT_CHECK; |
1613 | } |
2307 | } |
1614 | |
2308 | |
1615 | void noinline |
2309 | void noinline |
1616 | ev_io_stop (EV_P_ ev_io *w) |
2310 | ev_io_stop (EV_P_ ev_io *w) |
1617 | { |
2311 | { |
1618 | clear_pending (EV_A_ (W)w); |
2312 | clear_pending (EV_A_ (W)w); |
1619 | if (expect_false (!ev_is_active (w))) |
2313 | if (expect_false (!ev_is_active (w))) |
1620 | return; |
2314 | return; |
1621 | |
2315 | |
1622 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2316 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
1623 | |
2317 | |
|
|
2318 | EV_FREQUENT_CHECK; |
|
|
2319 | |
1624 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
2320 | wlist_del (&anfds[w->fd].head, (WL)w); |
1625 | ev_stop (EV_A_ (W)w); |
2321 | ev_stop (EV_A_ (W)w); |
1626 | |
2322 | |
1627 | fd_change (EV_A_ w->fd); |
2323 | fd_change (EV_A_ w->fd, 1); |
|
|
2324 | |
|
|
2325 | EV_FREQUENT_CHECK; |
1628 | } |
2326 | } |
1629 | |
2327 | |
1630 | void noinline |
2328 | void noinline |
1631 | ev_timer_start (EV_P_ ev_timer *w) |
2329 | ev_timer_start (EV_P_ ev_timer *w) |
1632 | { |
2330 | { |
1633 | if (expect_false (ev_is_active (w))) |
2331 | if (expect_false (ev_is_active (w))) |
1634 | return; |
2332 | return; |
1635 | |
2333 | |
1636 | ((WT)w)->at += mn_now; |
2334 | ev_at (w) += mn_now; |
1637 | |
2335 | |
1638 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2336 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1639 | |
2337 | |
|
|
2338 | EV_FREQUENT_CHECK; |
|
|
2339 | |
|
|
2340 | ++timercnt; |
1640 | ev_start (EV_A_ (W)w, ++timercnt); |
2341 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
1641 | array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2); |
2342 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
1642 | timers [timercnt - 1] = w; |
2343 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
1643 | upheap ((WT *)timers, timercnt - 1); |
2344 | ANHE_at_cache (timers [ev_active (w)]); |
|
|
2345 | upheap (timers, ev_active (w)); |
1644 | |
2346 | |
|
|
2347 | EV_FREQUENT_CHECK; |
|
|
2348 | |
1645 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
2349 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
1646 | } |
2350 | } |
1647 | |
2351 | |
1648 | void noinline |
2352 | void noinline |
1649 | ev_timer_stop (EV_P_ ev_timer *w) |
2353 | ev_timer_stop (EV_P_ ev_timer *w) |
1650 | { |
2354 | { |
1651 | clear_pending (EV_A_ (W)w); |
2355 | clear_pending (EV_A_ (W)w); |
1652 | if (expect_false (!ev_is_active (w))) |
2356 | if (expect_false (!ev_is_active (w))) |
1653 | return; |
2357 | return; |
1654 | |
2358 | |
1655 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
2359 | EV_FREQUENT_CHECK; |
1656 | |
2360 | |
1657 | { |
2361 | { |
1658 | int active = ((W)w)->active; |
2362 | int active = ev_active (w); |
1659 | |
2363 | |
|
|
2364 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
|
|
2365 | |
|
|
2366 | --timercnt; |
|
|
2367 | |
1660 | if (expect_true (--active < --timercnt)) |
2368 | if (expect_true (active < timercnt + HEAP0)) |
1661 | { |
2369 | { |
1662 | timers [active] = timers [timercnt]; |
2370 | timers [active] = timers [timercnt + HEAP0]; |
1663 | adjustheap ((WT *)timers, timercnt, active); |
2371 | adjustheap (timers, timercnt, active); |
1664 | } |
2372 | } |
1665 | } |
2373 | } |
1666 | |
2374 | |
1667 | ((WT)w)->at -= mn_now; |
2375 | EV_FREQUENT_CHECK; |
|
|
2376 | |
|
|
2377 | ev_at (w) -= mn_now; |
1668 | |
2378 | |
1669 | ev_stop (EV_A_ (W)w); |
2379 | ev_stop (EV_A_ (W)w); |
1670 | } |
2380 | } |
1671 | |
2381 | |
1672 | void noinline |
2382 | void noinline |
1673 | ev_timer_again (EV_P_ ev_timer *w) |
2383 | ev_timer_again (EV_P_ ev_timer *w) |
1674 | { |
2384 | { |
|
|
2385 | EV_FREQUENT_CHECK; |
|
|
2386 | |
1675 | if (ev_is_active (w)) |
2387 | if (ev_is_active (w)) |
1676 | { |
2388 | { |
1677 | if (w->repeat) |
2389 | if (w->repeat) |
1678 | { |
2390 | { |
1679 | ((WT)w)->at = mn_now + w->repeat; |
2391 | ev_at (w) = mn_now + w->repeat; |
|
|
2392 | ANHE_at_cache (timers [ev_active (w)]); |
1680 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
2393 | adjustheap (timers, timercnt, ev_active (w)); |
1681 | } |
2394 | } |
1682 | else |
2395 | else |
1683 | ev_timer_stop (EV_A_ w); |
2396 | ev_timer_stop (EV_A_ w); |
1684 | } |
2397 | } |
1685 | else if (w->repeat) |
2398 | else if (w->repeat) |
1686 | { |
2399 | { |
1687 | w->at = w->repeat; |
2400 | ev_at (w) = w->repeat; |
1688 | ev_timer_start (EV_A_ w); |
2401 | ev_timer_start (EV_A_ w); |
1689 | } |
2402 | } |
|
|
2403 | |
|
|
2404 | EV_FREQUENT_CHECK; |
1690 | } |
2405 | } |
1691 | |
2406 | |
1692 | #if EV_PERIODIC_ENABLE |
2407 | #if EV_PERIODIC_ENABLE |
1693 | void noinline |
2408 | void noinline |
1694 | ev_periodic_start (EV_P_ ev_periodic *w) |
2409 | ev_periodic_start (EV_P_ ev_periodic *w) |
1695 | { |
2410 | { |
1696 | if (expect_false (ev_is_active (w))) |
2411 | if (expect_false (ev_is_active (w))) |
1697 | return; |
2412 | return; |
1698 | |
2413 | |
1699 | if (w->reschedule_cb) |
2414 | if (w->reschedule_cb) |
1700 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
2415 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1701 | else if (w->interval) |
2416 | else if (w->interval) |
1702 | { |
2417 | { |
1703 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2418 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1704 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2419 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1705 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2420 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1706 | } |
2421 | } |
1707 | else |
2422 | else |
1708 | ((WT)w)->at = w->offset; |
2423 | ev_at (w) = w->offset; |
1709 | |
2424 | |
|
|
2425 | EV_FREQUENT_CHECK; |
|
|
2426 | |
|
|
2427 | ++periodiccnt; |
1710 | ev_start (EV_A_ (W)w, ++periodiccnt); |
2428 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
1711 | array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); |
2429 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
1712 | periodics [periodiccnt - 1] = w; |
2430 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
1713 | upheap ((WT *)periodics, periodiccnt - 1); |
2431 | ANHE_at_cache (periodics [ev_active (w)]); |
|
|
2432 | upheap (periodics, ev_active (w)); |
1714 | |
2433 | |
|
|
2434 | EV_FREQUENT_CHECK; |
|
|
2435 | |
1715 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
2436 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
1716 | } |
2437 | } |
1717 | |
2438 | |
1718 | void noinline |
2439 | void noinline |
1719 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2440 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1720 | { |
2441 | { |
1721 | clear_pending (EV_A_ (W)w); |
2442 | clear_pending (EV_A_ (W)w); |
1722 | if (expect_false (!ev_is_active (w))) |
2443 | if (expect_false (!ev_is_active (w))) |
1723 | return; |
2444 | return; |
1724 | |
2445 | |
1725 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
2446 | EV_FREQUENT_CHECK; |
1726 | |
2447 | |
1727 | { |
2448 | { |
1728 | int active = ((W)w)->active; |
2449 | int active = ev_active (w); |
1729 | |
2450 | |
|
|
2451 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
|
|
2452 | |
|
|
2453 | --periodiccnt; |
|
|
2454 | |
1730 | if (expect_true (--active < --periodiccnt)) |
2455 | if (expect_true (active < periodiccnt + HEAP0)) |
1731 | { |
2456 | { |
1732 | periodics [active] = periodics [periodiccnt]; |
2457 | periodics [active] = periodics [periodiccnt + HEAP0]; |
1733 | adjustheap ((WT *)periodics, periodiccnt, active); |
2458 | adjustheap (periodics, periodiccnt, active); |
1734 | } |
2459 | } |
1735 | } |
2460 | } |
|
|
2461 | |
|
|
2462 | EV_FREQUENT_CHECK; |
1736 | |
2463 | |
1737 | ev_stop (EV_A_ (W)w); |
2464 | ev_stop (EV_A_ (W)w); |
1738 | } |
2465 | } |
1739 | |
2466 | |
1740 | void noinline |
2467 | void noinline |
… | |
… | |
1752 | |
2479 | |
1753 | void noinline |
2480 | void noinline |
1754 | ev_signal_start (EV_P_ ev_signal *w) |
2481 | ev_signal_start (EV_P_ ev_signal *w) |
1755 | { |
2482 | { |
1756 | #if EV_MULTIPLICITY |
2483 | #if EV_MULTIPLICITY |
1757 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2484 | assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1758 | #endif |
2485 | #endif |
1759 | if (expect_false (ev_is_active (w))) |
2486 | if (expect_false (ev_is_active (w))) |
1760 | return; |
2487 | return; |
1761 | |
2488 | |
1762 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2489 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); |
|
|
2490 | |
|
|
2491 | evpipe_init (EV_A); |
|
|
2492 | |
|
|
2493 | EV_FREQUENT_CHECK; |
|
|
2494 | |
|
|
2495 | { |
|
|
2496 | #ifndef _WIN32 |
|
|
2497 | sigset_t full, prev; |
|
|
2498 | sigfillset (&full); |
|
|
2499 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2500 | #endif |
|
|
2501 | |
|
|
2502 | array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); |
|
|
2503 | |
|
|
2504 | #ifndef _WIN32 |
|
|
2505 | sigprocmask (SIG_SETMASK, &prev, 0); |
|
|
2506 | #endif |
|
|
2507 | } |
1763 | |
2508 | |
1764 | ev_start (EV_A_ (W)w, 1); |
2509 | ev_start (EV_A_ (W)w, 1); |
1765 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
|
|
1766 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
2510 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
1767 | |
2511 | |
1768 | if (!((WL)w)->next) |
2512 | if (!((WL)w)->next) |
1769 | { |
2513 | { |
1770 | #if _WIN32 |
2514 | #if _WIN32 |
1771 | signal (w->signum, sighandler); |
2515 | signal (w->signum, ev_sighandler); |
1772 | #else |
2516 | #else |
1773 | struct sigaction sa; |
2517 | struct sigaction sa; |
1774 | sa.sa_handler = sighandler; |
2518 | sa.sa_handler = ev_sighandler; |
1775 | sigfillset (&sa.sa_mask); |
2519 | sigfillset (&sa.sa_mask); |
1776 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2520 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1777 | sigaction (w->signum, &sa, 0); |
2521 | sigaction (w->signum, &sa, 0); |
1778 | #endif |
2522 | #endif |
1779 | } |
2523 | } |
|
|
2524 | |
|
|
2525 | EV_FREQUENT_CHECK; |
1780 | } |
2526 | } |
1781 | |
2527 | |
1782 | void noinline |
2528 | void noinline |
1783 | ev_signal_stop (EV_P_ ev_signal *w) |
2529 | ev_signal_stop (EV_P_ ev_signal *w) |
1784 | { |
2530 | { |
1785 | clear_pending (EV_A_ (W)w); |
2531 | clear_pending (EV_A_ (W)w); |
1786 | if (expect_false (!ev_is_active (w))) |
2532 | if (expect_false (!ev_is_active (w))) |
1787 | return; |
2533 | return; |
1788 | |
2534 | |
|
|
2535 | EV_FREQUENT_CHECK; |
|
|
2536 | |
1789 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
2537 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
1790 | ev_stop (EV_A_ (W)w); |
2538 | ev_stop (EV_A_ (W)w); |
1791 | |
2539 | |
1792 | if (!signals [w->signum - 1].head) |
2540 | if (!signals [w->signum - 1].head) |
1793 | signal (w->signum, SIG_DFL); |
2541 | signal (w->signum, SIG_DFL); |
|
|
2542 | |
|
|
2543 | EV_FREQUENT_CHECK; |
1794 | } |
2544 | } |
1795 | |
2545 | |
1796 | void |
2546 | void |
1797 | ev_child_start (EV_P_ ev_child *w) |
2547 | ev_child_start (EV_P_ ev_child *w) |
1798 | { |
2548 | { |
1799 | #if EV_MULTIPLICITY |
2549 | #if EV_MULTIPLICITY |
1800 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2550 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1801 | #endif |
2551 | #endif |
1802 | if (expect_false (ev_is_active (w))) |
2552 | if (expect_false (ev_is_active (w))) |
1803 | return; |
2553 | return; |
1804 | |
2554 | |
|
|
2555 | EV_FREQUENT_CHECK; |
|
|
2556 | |
1805 | ev_start (EV_A_ (W)w, 1); |
2557 | ev_start (EV_A_ (W)w, 1); |
1806 | wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2558 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
|
|
2559 | |
|
|
2560 | EV_FREQUENT_CHECK; |
1807 | } |
2561 | } |
1808 | |
2562 | |
1809 | void |
2563 | void |
1810 | ev_child_stop (EV_P_ ev_child *w) |
2564 | ev_child_stop (EV_P_ ev_child *w) |
1811 | { |
2565 | { |
1812 | clear_pending (EV_A_ (W)w); |
2566 | clear_pending (EV_A_ (W)w); |
1813 | if (expect_false (!ev_is_active (w))) |
2567 | if (expect_false (!ev_is_active (w))) |
1814 | return; |
2568 | return; |
1815 | |
2569 | |
|
|
2570 | EV_FREQUENT_CHECK; |
|
|
2571 | |
1816 | wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2572 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1817 | ev_stop (EV_A_ (W)w); |
2573 | ev_stop (EV_A_ (W)w); |
|
|
2574 | |
|
|
2575 | EV_FREQUENT_CHECK; |
1818 | } |
2576 | } |
1819 | |
2577 | |
1820 | #if EV_STAT_ENABLE |
2578 | #if EV_STAT_ENABLE |
1821 | |
2579 | |
1822 | # ifdef _WIN32 |
2580 | # ifdef _WIN32 |
1823 | # undef lstat |
2581 | # undef lstat |
1824 | # define lstat(a,b) _stati64 (a,b) |
2582 | # define lstat(a,b) _stati64 (a,b) |
1825 | # endif |
2583 | # endif |
1826 | |
2584 | |
1827 | #define DEF_STAT_INTERVAL 5.0074891 |
2585 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
2586 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
1828 | #define MIN_STAT_INTERVAL 0.1074891 |
2587 | #define MIN_STAT_INTERVAL 0.1074891 |
1829 | |
2588 | |
1830 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2589 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
1831 | |
2590 | |
1832 | #if EV_USE_INOTIFY |
2591 | #if EV_USE_INOTIFY |
1833 | # define EV_INOTIFY_BUFSIZE 8192 |
2592 | # define EV_INOTIFY_BUFSIZE 8192 |
… | |
… | |
1837 | { |
2596 | { |
1838 | 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); |
2597 | 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); |
1839 | |
2598 | |
1840 | if (w->wd < 0) |
2599 | if (w->wd < 0) |
1841 | { |
2600 | { |
|
|
2601 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
1842 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2602 | ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
1843 | |
2603 | |
1844 | /* monitor some parent directory for speedup hints */ |
2604 | /* monitor some parent directory for speedup hints */ |
|
|
2605 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
|
|
2606 | /* but an efficiency issue only */ |
1845 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2607 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
1846 | { |
2608 | { |
1847 | char path [4096]; |
2609 | char path [4096]; |
1848 | strcpy (path, w->path); |
2610 | strcpy (path, w->path); |
1849 | |
2611 | |
… | |
… | |
1852 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2614 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
1853 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2615 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
1854 | |
2616 | |
1855 | char *pend = strrchr (path, '/'); |
2617 | char *pend = strrchr (path, '/'); |
1856 | |
2618 | |
1857 | if (!pend) |
2619 | if (!pend || pend == path) |
1858 | break; /* whoops, no '/', complain to your admin */ |
2620 | break; |
1859 | |
2621 | |
1860 | *pend = 0; |
2622 | *pend = 0; |
1861 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2623 | w->wd = inotify_add_watch (fs_fd, path, mask); |
1862 | } |
2624 | } |
1863 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2625 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
1864 | } |
2626 | } |
1865 | } |
2627 | } |
1866 | else |
|
|
1867 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
1868 | |
2628 | |
1869 | if (w->wd >= 0) |
2629 | if (w->wd >= 0) |
|
|
2630 | { |
1870 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2631 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
2632 | |
|
|
2633 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
2634 | /* unless the filesystem it known to be local, we therefore still poll */ |
|
|
2635 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2636 | struct statfs sfs; |
|
|
2637 | |
|
|
2638 | if (fs_2625 && !statfs (w->path, &sfs)) |
|
|
2639 | if (sfs.f_type == 0x1373 /* devfs */ |
|
|
2640 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2641 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2642 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2643 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2644 | || sfs.f_type == 0x58465342 /* xfs */) |
|
|
2645 | return; |
|
|
2646 | |
|
|
2647 | w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2648 | ev_timer_again (EV_A_ &w->timer); |
|
|
2649 | } |
1871 | } |
2650 | } |
1872 | |
2651 | |
1873 | static void noinline |
2652 | static void noinline |
1874 | infy_del (EV_P_ ev_stat *w) |
2653 | infy_del (EV_P_ ev_stat *w) |
1875 | { |
2654 | { |
… | |
… | |
1889 | |
2668 | |
1890 | static void noinline |
2669 | static void noinline |
1891 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2670 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
1892 | { |
2671 | { |
1893 | if (slot < 0) |
2672 | if (slot < 0) |
1894 | /* overflow, need to check for all hahs slots */ |
2673 | /* overflow, need to check for all hash slots */ |
1895 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2674 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
1896 | infy_wd (EV_A_ slot, wd, ev); |
2675 | infy_wd (EV_A_ slot, wd, ev); |
1897 | else |
2676 | else |
1898 | { |
2677 | { |
1899 | WL w_; |
2678 | WL w_; |
… | |
… | |
1905 | |
2684 | |
1906 | if (w->wd == wd || wd == -1) |
2685 | if (w->wd == wd || wd == -1) |
1907 | { |
2686 | { |
1908 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2687 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
1909 | { |
2688 | { |
|
|
2689 | wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
1910 | w->wd = -1; |
2690 | w->wd = -1; |
1911 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2691 | infy_add (EV_A_ w); /* re-add, no matter what */ |
1912 | } |
2692 | } |
1913 | |
2693 | |
1914 | stat_timer_cb (EV_A_ &w->timer, 0); |
2694 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
1927 | |
2707 | |
1928 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
2708 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
1929 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
2709 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
1930 | } |
2710 | } |
1931 | |
2711 | |
1932 | void inline_size |
2712 | inline_size void |
|
|
2713 | check_2625 (EV_P) |
|
|
2714 | { |
|
|
2715 | /* kernels < 2.6.25 are borked |
|
|
2716 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
|
|
2717 | */ |
|
|
2718 | struct utsname buf; |
|
|
2719 | int major, minor, micro; |
|
|
2720 | |
|
|
2721 | if (uname (&buf)) |
|
|
2722 | return; |
|
|
2723 | |
|
|
2724 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
|
|
2725 | return; |
|
|
2726 | |
|
|
2727 | if (major < 2 |
|
|
2728 | || (major == 2 && minor < 6) |
|
|
2729 | || (major == 2 && minor == 6 && micro < 25)) |
|
|
2730 | return; |
|
|
2731 | |
|
|
2732 | fs_2625 = 1; |
|
|
2733 | } |
|
|
2734 | |
|
|
2735 | inline_size void |
1933 | infy_init (EV_P) |
2736 | infy_init (EV_P) |
1934 | { |
2737 | { |
1935 | if (fs_fd != -2) |
2738 | if (fs_fd != -2) |
1936 | return; |
2739 | return; |
|
|
2740 | |
|
|
2741 | fs_fd = -1; |
|
|
2742 | |
|
|
2743 | check_2625 (EV_A); |
1937 | |
2744 | |
1938 | fs_fd = inotify_init (); |
2745 | fs_fd = inotify_init (); |
1939 | |
2746 | |
1940 | if (fs_fd >= 0) |
2747 | if (fs_fd >= 0) |
1941 | { |
2748 | { |
… | |
… | |
1943 | ev_set_priority (&fs_w, EV_MAXPRI); |
2750 | ev_set_priority (&fs_w, EV_MAXPRI); |
1944 | ev_io_start (EV_A_ &fs_w); |
2751 | ev_io_start (EV_A_ &fs_w); |
1945 | } |
2752 | } |
1946 | } |
2753 | } |
1947 | |
2754 | |
1948 | void inline_size |
2755 | inline_size void |
1949 | infy_fork (EV_P) |
2756 | infy_fork (EV_P) |
1950 | { |
2757 | { |
1951 | int slot; |
2758 | int slot; |
1952 | |
2759 | |
1953 | if (fs_fd < 0) |
2760 | if (fs_fd < 0) |
… | |
… | |
1969 | w->wd = -1; |
2776 | w->wd = -1; |
1970 | |
2777 | |
1971 | if (fs_fd >= 0) |
2778 | if (fs_fd >= 0) |
1972 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2779 | infy_add (EV_A_ w); /* re-add, no matter what */ |
1973 | else |
2780 | else |
1974 | ev_timer_start (EV_A_ &w->timer); |
2781 | ev_timer_again (EV_A_ &w->timer); |
1975 | } |
2782 | } |
1976 | |
|
|
1977 | } |
2783 | } |
1978 | } |
2784 | } |
1979 | |
2785 | |
|
|
2786 | #endif |
|
|
2787 | |
|
|
2788 | #ifdef _WIN32 |
|
|
2789 | # define EV_LSTAT(p,b) _stati64 (p, b) |
|
|
2790 | #else |
|
|
2791 | # define EV_LSTAT(p,b) lstat (p, b) |
1980 | #endif |
2792 | #endif |
1981 | |
2793 | |
1982 | void |
2794 | void |
1983 | ev_stat_stat (EV_P_ ev_stat *w) |
2795 | ev_stat_stat (EV_P_ ev_stat *w) |
1984 | { |
2796 | { |
… | |
… | |
2011 | || w->prev.st_atime != w->attr.st_atime |
2823 | || w->prev.st_atime != w->attr.st_atime |
2012 | || w->prev.st_mtime != w->attr.st_mtime |
2824 | || w->prev.st_mtime != w->attr.st_mtime |
2013 | || w->prev.st_ctime != w->attr.st_ctime |
2825 | || w->prev.st_ctime != w->attr.st_ctime |
2014 | ) { |
2826 | ) { |
2015 | #if EV_USE_INOTIFY |
2827 | #if EV_USE_INOTIFY |
|
|
2828 | if (fs_fd >= 0) |
|
|
2829 | { |
2016 | infy_del (EV_A_ w); |
2830 | infy_del (EV_A_ w); |
2017 | infy_add (EV_A_ w); |
2831 | infy_add (EV_A_ w); |
2018 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
2832 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
2833 | } |
2019 | #endif |
2834 | #endif |
2020 | |
2835 | |
2021 | ev_feed_event (EV_A_ w, EV_STAT); |
2836 | ev_feed_event (EV_A_ w, EV_STAT); |
2022 | } |
2837 | } |
2023 | } |
2838 | } |
… | |
… | |
2026 | ev_stat_start (EV_P_ ev_stat *w) |
2841 | ev_stat_start (EV_P_ ev_stat *w) |
2027 | { |
2842 | { |
2028 | if (expect_false (ev_is_active (w))) |
2843 | if (expect_false (ev_is_active (w))) |
2029 | return; |
2844 | return; |
2030 | |
2845 | |
2031 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2032 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2033 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2034 | |
|
|
2035 | ev_stat_stat (EV_A_ w); |
2846 | ev_stat_stat (EV_A_ w); |
2036 | |
2847 | |
|
|
2848 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
2037 | if (w->interval < MIN_STAT_INTERVAL) |
2849 | w->interval = MIN_STAT_INTERVAL; |
2038 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2039 | |
2850 | |
2040 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
2851 | ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL); |
2041 | ev_set_priority (&w->timer, ev_priority (w)); |
2852 | ev_set_priority (&w->timer, ev_priority (w)); |
2042 | |
2853 | |
2043 | #if EV_USE_INOTIFY |
2854 | #if EV_USE_INOTIFY |
2044 | infy_init (EV_A); |
2855 | infy_init (EV_A); |
2045 | |
2856 | |
2046 | if (fs_fd >= 0) |
2857 | if (fs_fd >= 0) |
2047 | infy_add (EV_A_ w); |
2858 | infy_add (EV_A_ w); |
2048 | else |
2859 | else |
2049 | #endif |
2860 | #endif |
2050 | ev_timer_start (EV_A_ &w->timer); |
2861 | ev_timer_again (EV_A_ &w->timer); |
2051 | |
2862 | |
2052 | ev_start (EV_A_ (W)w, 1); |
2863 | ev_start (EV_A_ (W)w, 1); |
|
|
2864 | |
|
|
2865 | EV_FREQUENT_CHECK; |
2053 | } |
2866 | } |
2054 | |
2867 | |
2055 | void |
2868 | void |
2056 | ev_stat_stop (EV_P_ ev_stat *w) |
2869 | ev_stat_stop (EV_P_ ev_stat *w) |
2057 | { |
2870 | { |
2058 | clear_pending (EV_A_ (W)w); |
2871 | clear_pending (EV_A_ (W)w); |
2059 | if (expect_false (!ev_is_active (w))) |
2872 | if (expect_false (!ev_is_active (w))) |
2060 | return; |
2873 | return; |
2061 | |
2874 | |
|
|
2875 | EV_FREQUENT_CHECK; |
|
|
2876 | |
2062 | #if EV_USE_INOTIFY |
2877 | #if EV_USE_INOTIFY |
2063 | infy_del (EV_A_ w); |
2878 | infy_del (EV_A_ w); |
2064 | #endif |
2879 | #endif |
2065 | ev_timer_stop (EV_A_ &w->timer); |
2880 | ev_timer_stop (EV_A_ &w->timer); |
2066 | |
2881 | |
2067 | ev_stop (EV_A_ (W)w); |
2882 | ev_stop (EV_A_ (W)w); |
|
|
2883 | |
|
|
2884 | EV_FREQUENT_CHECK; |
2068 | } |
2885 | } |
2069 | #endif |
2886 | #endif |
2070 | |
2887 | |
2071 | #if EV_IDLE_ENABLE |
2888 | #if EV_IDLE_ENABLE |
2072 | void |
2889 | void |
… | |
… | |
2074 | { |
2891 | { |
2075 | if (expect_false (ev_is_active (w))) |
2892 | if (expect_false (ev_is_active (w))) |
2076 | return; |
2893 | return; |
2077 | |
2894 | |
2078 | pri_adjust (EV_A_ (W)w); |
2895 | pri_adjust (EV_A_ (W)w); |
|
|
2896 | |
|
|
2897 | EV_FREQUENT_CHECK; |
2079 | |
2898 | |
2080 | { |
2899 | { |
2081 | int active = ++idlecnt [ABSPRI (w)]; |
2900 | int active = ++idlecnt [ABSPRI (w)]; |
2082 | |
2901 | |
2083 | ++idleall; |
2902 | ++idleall; |
2084 | ev_start (EV_A_ (W)w, active); |
2903 | ev_start (EV_A_ (W)w, active); |
2085 | |
2904 | |
2086 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
2905 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
2087 | idles [ABSPRI (w)][active - 1] = w; |
2906 | idles [ABSPRI (w)][active - 1] = w; |
2088 | } |
2907 | } |
|
|
2908 | |
|
|
2909 | EV_FREQUENT_CHECK; |
2089 | } |
2910 | } |
2090 | |
2911 | |
2091 | void |
2912 | void |
2092 | ev_idle_stop (EV_P_ ev_idle *w) |
2913 | ev_idle_stop (EV_P_ ev_idle *w) |
2093 | { |
2914 | { |
2094 | clear_pending (EV_A_ (W)w); |
2915 | clear_pending (EV_A_ (W)w); |
2095 | if (expect_false (!ev_is_active (w))) |
2916 | if (expect_false (!ev_is_active (w))) |
2096 | return; |
2917 | return; |
2097 | |
2918 | |
|
|
2919 | EV_FREQUENT_CHECK; |
|
|
2920 | |
2098 | { |
2921 | { |
2099 | int active = ((W)w)->active; |
2922 | int active = ev_active (w); |
2100 | |
2923 | |
2101 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2924 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2102 | ((W)idles [ABSPRI (w)][active - 1])->active = active; |
2925 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
2103 | |
2926 | |
2104 | ev_stop (EV_A_ (W)w); |
2927 | ev_stop (EV_A_ (W)w); |
2105 | --idleall; |
2928 | --idleall; |
2106 | } |
2929 | } |
|
|
2930 | |
|
|
2931 | EV_FREQUENT_CHECK; |
2107 | } |
2932 | } |
2108 | #endif |
2933 | #endif |
2109 | |
2934 | |
2110 | void |
2935 | void |
2111 | ev_prepare_start (EV_P_ ev_prepare *w) |
2936 | ev_prepare_start (EV_P_ ev_prepare *w) |
2112 | { |
2937 | { |
2113 | if (expect_false (ev_is_active (w))) |
2938 | if (expect_false (ev_is_active (w))) |
2114 | return; |
2939 | return; |
|
|
2940 | |
|
|
2941 | EV_FREQUENT_CHECK; |
2115 | |
2942 | |
2116 | ev_start (EV_A_ (W)w, ++preparecnt); |
2943 | ev_start (EV_A_ (W)w, ++preparecnt); |
2117 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
2944 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
2118 | prepares [preparecnt - 1] = w; |
2945 | prepares [preparecnt - 1] = w; |
|
|
2946 | |
|
|
2947 | EV_FREQUENT_CHECK; |
2119 | } |
2948 | } |
2120 | |
2949 | |
2121 | void |
2950 | void |
2122 | ev_prepare_stop (EV_P_ ev_prepare *w) |
2951 | ev_prepare_stop (EV_P_ ev_prepare *w) |
2123 | { |
2952 | { |
2124 | clear_pending (EV_A_ (W)w); |
2953 | clear_pending (EV_A_ (W)w); |
2125 | if (expect_false (!ev_is_active (w))) |
2954 | if (expect_false (!ev_is_active (w))) |
2126 | return; |
2955 | return; |
2127 | |
2956 | |
|
|
2957 | EV_FREQUENT_CHECK; |
|
|
2958 | |
2128 | { |
2959 | { |
2129 | int active = ((W)w)->active; |
2960 | int active = ev_active (w); |
|
|
2961 | |
2130 | prepares [active - 1] = prepares [--preparecnt]; |
2962 | prepares [active - 1] = prepares [--preparecnt]; |
2131 | ((W)prepares [active - 1])->active = active; |
2963 | ev_active (prepares [active - 1]) = active; |
2132 | } |
2964 | } |
2133 | |
2965 | |
2134 | ev_stop (EV_A_ (W)w); |
2966 | ev_stop (EV_A_ (W)w); |
|
|
2967 | |
|
|
2968 | EV_FREQUENT_CHECK; |
2135 | } |
2969 | } |
2136 | |
2970 | |
2137 | void |
2971 | void |
2138 | ev_check_start (EV_P_ ev_check *w) |
2972 | ev_check_start (EV_P_ ev_check *w) |
2139 | { |
2973 | { |
2140 | if (expect_false (ev_is_active (w))) |
2974 | if (expect_false (ev_is_active (w))) |
2141 | return; |
2975 | return; |
|
|
2976 | |
|
|
2977 | EV_FREQUENT_CHECK; |
2142 | |
2978 | |
2143 | ev_start (EV_A_ (W)w, ++checkcnt); |
2979 | ev_start (EV_A_ (W)w, ++checkcnt); |
2144 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
2980 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
2145 | checks [checkcnt - 1] = w; |
2981 | checks [checkcnt - 1] = w; |
|
|
2982 | |
|
|
2983 | EV_FREQUENT_CHECK; |
2146 | } |
2984 | } |
2147 | |
2985 | |
2148 | void |
2986 | void |
2149 | ev_check_stop (EV_P_ ev_check *w) |
2987 | ev_check_stop (EV_P_ ev_check *w) |
2150 | { |
2988 | { |
2151 | clear_pending (EV_A_ (W)w); |
2989 | clear_pending (EV_A_ (W)w); |
2152 | if (expect_false (!ev_is_active (w))) |
2990 | if (expect_false (!ev_is_active (w))) |
2153 | return; |
2991 | return; |
2154 | |
2992 | |
|
|
2993 | EV_FREQUENT_CHECK; |
|
|
2994 | |
2155 | { |
2995 | { |
2156 | int active = ((W)w)->active; |
2996 | int active = ev_active (w); |
|
|
2997 | |
2157 | checks [active - 1] = checks [--checkcnt]; |
2998 | checks [active - 1] = checks [--checkcnt]; |
2158 | ((W)checks [active - 1])->active = active; |
2999 | ev_active (checks [active - 1]) = active; |
2159 | } |
3000 | } |
2160 | |
3001 | |
2161 | ev_stop (EV_A_ (W)w); |
3002 | ev_stop (EV_A_ (W)w); |
|
|
3003 | |
|
|
3004 | EV_FREQUENT_CHECK; |
2162 | } |
3005 | } |
2163 | |
3006 | |
2164 | #if EV_EMBED_ENABLE |
3007 | #if EV_EMBED_ENABLE |
2165 | void noinline |
3008 | void noinline |
2166 | ev_embed_sweep (EV_P_ ev_embed *w) |
3009 | ev_embed_sweep (EV_P_ ev_embed *w) |
2167 | { |
3010 | { |
2168 | ev_loop (w->loop, EVLOOP_NONBLOCK); |
3011 | ev_loop (w->other, EVLOOP_NONBLOCK); |
2169 | } |
3012 | } |
2170 | |
3013 | |
2171 | static void |
3014 | static void |
2172 | embed_cb (EV_P_ ev_io *io, int revents) |
3015 | embed_io_cb (EV_P_ ev_io *io, int revents) |
2173 | { |
3016 | { |
2174 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
3017 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
2175 | |
3018 | |
2176 | if (ev_cb (w)) |
3019 | if (ev_cb (w)) |
2177 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
3020 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2178 | else |
3021 | else |
2179 | ev_embed_sweep (loop, w); |
3022 | ev_loop (w->other, EVLOOP_NONBLOCK); |
2180 | } |
3023 | } |
|
|
3024 | |
|
|
3025 | static void |
|
|
3026 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
|
|
3027 | { |
|
|
3028 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
|
|
3029 | |
|
|
3030 | { |
|
|
3031 | struct ev_loop *loop = w->other; |
|
|
3032 | |
|
|
3033 | while (fdchangecnt) |
|
|
3034 | { |
|
|
3035 | fd_reify (EV_A); |
|
|
3036 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
3037 | } |
|
|
3038 | } |
|
|
3039 | } |
|
|
3040 | |
|
|
3041 | static void |
|
|
3042 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
|
|
3043 | { |
|
|
3044 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
|
|
3045 | |
|
|
3046 | ev_embed_stop (EV_A_ w); |
|
|
3047 | |
|
|
3048 | { |
|
|
3049 | struct ev_loop *loop = w->other; |
|
|
3050 | |
|
|
3051 | ev_loop_fork (EV_A); |
|
|
3052 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
3053 | } |
|
|
3054 | |
|
|
3055 | ev_embed_start (EV_A_ w); |
|
|
3056 | } |
|
|
3057 | |
|
|
3058 | #if 0 |
|
|
3059 | static void |
|
|
3060 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
|
|
3061 | { |
|
|
3062 | ev_idle_stop (EV_A_ idle); |
|
|
3063 | } |
|
|
3064 | #endif |
2181 | |
3065 | |
2182 | void |
3066 | void |
2183 | ev_embed_start (EV_P_ ev_embed *w) |
3067 | ev_embed_start (EV_P_ ev_embed *w) |
2184 | { |
3068 | { |
2185 | if (expect_false (ev_is_active (w))) |
3069 | if (expect_false (ev_is_active (w))) |
2186 | return; |
3070 | return; |
2187 | |
3071 | |
2188 | { |
3072 | { |
2189 | struct ev_loop *loop = w->loop; |
3073 | struct ev_loop *loop = w->other; |
2190 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3074 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2191 | ev_io_init (&w->io, embed_cb, backend_fd, EV_READ); |
3075 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2192 | } |
3076 | } |
|
|
3077 | |
|
|
3078 | EV_FREQUENT_CHECK; |
2193 | |
3079 | |
2194 | ev_set_priority (&w->io, ev_priority (w)); |
3080 | ev_set_priority (&w->io, ev_priority (w)); |
2195 | ev_io_start (EV_A_ &w->io); |
3081 | ev_io_start (EV_A_ &w->io); |
2196 | |
3082 | |
|
|
3083 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
|
|
3084 | ev_set_priority (&w->prepare, EV_MINPRI); |
|
|
3085 | ev_prepare_start (EV_A_ &w->prepare); |
|
|
3086 | |
|
|
3087 | ev_fork_init (&w->fork, embed_fork_cb); |
|
|
3088 | ev_fork_start (EV_A_ &w->fork); |
|
|
3089 | |
|
|
3090 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
|
|
3091 | |
2197 | ev_start (EV_A_ (W)w, 1); |
3092 | ev_start (EV_A_ (W)w, 1); |
|
|
3093 | |
|
|
3094 | EV_FREQUENT_CHECK; |
2198 | } |
3095 | } |
2199 | |
3096 | |
2200 | void |
3097 | void |
2201 | ev_embed_stop (EV_P_ ev_embed *w) |
3098 | ev_embed_stop (EV_P_ ev_embed *w) |
2202 | { |
3099 | { |
2203 | clear_pending (EV_A_ (W)w); |
3100 | clear_pending (EV_A_ (W)w); |
2204 | if (expect_false (!ev_is_active (w))) |
3101 | if (expect_false (!ev_is_active (w))) |
2205 | return; |
3102 | return; |
2206 | |
3103 | |
|
|
3104 | EV_FREQUENT_CHECK; |
|
|
3105 | |
2207 | ev_io_stop (EV_A_ &w->io); |
3106 | ev_io_stop (EV_A_ &w->io); |
|
|
3107 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
3108 | ev_fork_stop (EV_A_ &w->fork); |
2208 | |
3109 | |
2209 | ev_stop (EV_A_ (W)w); |
3110 | EV_FREQUENT_CHECK; |
2210 | } |
3111 | } |
2211 | #endif |
3112 | #endif |
2212 | |
3113 | |
2213 | #if EV_FORK_ENABLE |
3114 | #if EV_FORK_ENABLE |
2214 | void |
3115 | void |
2215 | ev_fork_start (EV_P_ ev_fork *w) |
3116 | ev_fork_start (EV_P_ ev_fork *w) |
2216 | { |
3117 | { |
2217 | if (expect_false (ev_is_active (w))) |
3118 | if (expect_false (ev_is_active (w))) |
2218 | return; |
3119 | return; |
|
|
3120 | |
|
|
3121 | EV_FREQUENT_CHECK; |
2219 | |
3122 | |
2220 | ev_start (EV_A_ (W)w, ++forkcnt); |
3123 | ev_start (EV_A_ (W)w, ++forkcnt); |
2221 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
3124 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
2222 | forks [forkcnt - 1] = w; |
3125 | forks [forkcnt - 1] = w; |
|
|
3126 | |
|
|
3127 | EV_FREQUENT_CHECK; |
2223 | } |
3128 | } |
2224 | |
3129 | |
2225 | void |
3130 | void |
2226 | ev_fork_stop (EV_P_ ev_fork *w) |
3131 | ev_fork_stop (EV_P_ ev_fork *w) |
2227 | { |
3132 | { |
2228 | clear_pending (EV_A_ (W)w); |
3133 | clear_pending (EV_A_ (W)w); |
2229 | if (expect_false (!ev_is_active (w))) |
3134 | if (expect_false (!ev_is_active (w))) |
2230 | return; |
3135 | return; |
2231 | |
3136 | |
|
|
3137 | EV_FREQUENT_CHECK; |
|
|
3138 | |
2232 | { |
3139 | { |
2233 | int active = ((W)w)->active; |
3140 | int active = ev_active (w); |
|
|
3141 | |
2234 | forks [active - 1] = forks [--forkcnt]; |
3142 | forks [active - 1] = forks [--forkcnt]; |
2235 | ((W)forks [active - 1])->active = active; |
3143 | ev_active (forks [active - 1]) = active; |
2236 | } |
3144 | } |
2237 | |
3145 | |
2238 | ev_stop (EV_A_ (W)w); |
3146 | ev_stop (EV_A_ (W)w); |
|
|
3147 | |
|
|
3148 | EV_FREQUENT_CHECK; |
|
|
3149 | } |
|
|
3150 | #endif |
|
|
3151 | |
|
|
3152 | #if EV_ASYNC_ENABLE |
|
|
3153 | void |
|
|
3154 | ev_async_start (EV_P_ ev_async *w) |
|
|
3155 | { |
|
|
3156 | if (expect_false (ev_is_active (w))) |
|
|
3157 | return; |
|
|
3158 | |
|
|
3159 | evpipe_init (EV_A); |
|
|
3160 | |
|
|
3161 | EV_FREQUENT_CHECK; |
|
|
3162 | |
|
|
3163 | ev_start (EV_A_ (W)w, ++asynccnt); |
|
|
3164 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
|
|
3165 | asyncs [asynccnt - 1] = w; |
|
|
3166 | |
|
|
3167 | EV_FREQUENT_CHECK; |
|
|
3168 | } |
|
|
3169 | |
|
|
3170 | void |
|
|
3171 | ev_async_stop (EV_P_ ev_async *w) |
|
|
3172 | { |
|
|
3173 | clear_pending (EV_A_ (W)w); |
|
|
3174 | if (expect_false (!ev_is_active (w))) |
|
|
3175 | return; |
|
|
3176 | |
|
|
3177 | EV_FREQUENT_CHECK; |
|
|
3178 | |
|
|
3179 | { |
|
|
3180 | int active = ev_active (w); |
|
|
3181 | |
|
|
3182 | asyncs [active - 1] = asyncs [--asynccnt]; |
|
|
3183 | ev_active (asyncs [active - 1]) = active; |
|
|
3184 | } |
|
|
3185 | |
|
|
3186 | ev_stop (EV_A_ (W)w); |
|
|
3187 | |
|
|
3188 | EV_FREQUENT_CHECK; |
|
|
3189 | } |
|
|
3190 | |
|
|
3191 | void |
|
|
3192 | ev_async_send (EV_P_ ev_async *w) |
|
|
3193 | { |
|
|
3194 | w->sent = 1; |
|
|
3195 | evpipe_write (EV_A_ &gotasync); |
2239 | } |
3196 | } |
2240 | #endif |
3197 | #endif |
2241 | |
3198 | |
2242 | /*****************************************************************************/ |
3199 | /*****************************************************************************/ |
2243 | |
3200 | |
… | |
… | |
2253 | once_cb (EV_P_ struct ev_once *once, int revents) |
3210 | once_cb (EV_P_ struct ev_once *once, int revents) |
2254 | { |
3211 | { |
2255 | void (*cb)(int revents, void *arg) = once->cb; |
3212 | void (*cb)(int revents, void *arg) = once->cb; |
2256 | void *arg = once->arg; |
3213 | void *arg = once->arg; |
2257 | |
3214 | |
2258 | ev_io_stop (EV_A_ &once->io); |
3215 | ev_io_stop (EV_A_ &once->io); |
2259 | ev_timer_stop (EV_A_ &once->to); |
3216 | ev_timer_stop (EV_A_ &once->to); |
2260 | ev_free (once); |
3217 | ev_free (once); |
2261 | |
3218 | |
2262 | cb (revents, arg); |
3219 | cb (revents, arg); |
2263 | } |
3220 | } |
2264 | |
3221 | |
2265 | static void |
3222 | static void |
2266 | once_cb_io (EV_P_ ev_io *w, int revents) |
3223 | once_cb_io (EV_P_ ev_io *w, int revents) |
2267 | { |
3224 | { |
2268 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
3225 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)); |
|
|
3226 | |
|
|
3227 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to)); |
2269 | } |
3228 | } |
2270 | |
3229 | |
2271 | static void |
3230 | static void |
2272 | once_cb_to (EV_P_ ev_timer *w, int revents) |
3231 | once_cb_to (EV_P_ ev_timer *w, int revents) |
2273 | { |
3232 | { |
2274 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
3233 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)); |
|
|
3234 | |
|
|
3235 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
2275 | } |
3236 | } |
2276 | |
3237 | |
2277 | void |
3238 | void |
2278 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
3239 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
2279 | { |
3240 | { |
… | |
… | |
2301 | ev_timer_set (&once->to, timeout, 0.); |
3262 | ev_timer_set (&once->to, timeout, 0.); |
2302 | ev_timer_start (EV_A_ &once->to); |
3263 | ev_timer_start (EV_A_ &once->to); |
2303 | } |
3264 | } |
2304 | } |
3265 | } |
2305 | |
3266 | |
|
|
3267 | /*****************************************************************************/ |
|
|
3268 | |
|
|
3269 | #if EV_WALK_ENABLE |
|
|
3270 | void |
|
|
3271 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
|
|
3272 | { |
|
|
3273 | int i, j; |
|
|
3274 | ev_watcher_list *wl, *wn; |
|
|
3275 | |
|
|
3276 | if (types & (EV_IO | EV_EMBED)) |
|
|
3277 | for (i = 0; i < anfdmax; ++i) |
|
|
3278 | for (wl = anfds [i].head; wl; ) |
|
|
3279 | { |
|
|
3280 | wn = wl->next; |
|
|
3281 | |
|
|
3282 | #if EV_EMBED_ENABLE |
|
|
3283 | if (ev_cb ((ev_io *)wl) == embed_io_cb) |
|
|
3284 | { |
|
|
3285 | if (types & EV_EMBED) |
|
|
3286 | cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io)); |
|
|
3287 | } |
|
|
3288 | else |
|
|
3289 | #endif |
|
|
3290 | #if EV_USE_INOTIFY |
|
|
3291 | if (ev_cb ((ev_io *)wl) == infy_cb) |
|
|
3292 | ; |
|
|
3293 | else |
|
|
3294 | #endif |
|
|
3295 | if ((ev_io *)wl != &pipe_w) |
|
|
3296 | if (types & EV_IO) |
|
|
3297 | cb (EV_A_ EV_IO, wl); |
|
|
3298 | |
|
|
3299 | wl = wn; |
|
|
3300 | } |
|
|
3301 | |
|
|
3302 | if (types & (EV_TIMER | EV_STAT)) |
|
|
3303 | for (i = timercnt + HEAP0; i-- > HEAP0; ) |
|
|
3304 | #if EV_STAT_ENABLE |
|
|
3305 | /*TODO: timer is not always active*/ |
|
|
3306 | if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb) |
|
|
3307 | { |
|
|
3308 | if (types & EV_STAT) |
|
|
3309 | cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer)); |
|
|
3310 | } |
|
|
3311 | else |
|
|
3312 | #endif |
|
|
3313 | if (types & EV_TIMER) |
|
|
3314 | cb (EV_A_ EV_TIMER, ANHE_w (timers [i])); |
|
|
3315 | |
|
|
3316 | #if EV_PERIODIC_ENABLE |
|
|
3317 | if (types & EV_PERIODIC) |
|
|
3318 | for (i = periodiccnt + HEAP0; i-- > HEAP0; ) |
|
|
3319 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
|
|
3320 | #endif |
|
|
3321 | |
|
|
3322 | #if EV_IDLE_ENABLE |
|
|
3323 | if (types & EV_IDLE) |
|
|
3324 | for (j = NUMPRI; i--; ) |
|
|
3325 | for (i = idlecnt [j]; i--; ) |
|
|
3326 | cb (EV_A_ EV_IDLE, idles [j][i]); |
|
|
3327 | #endif |
|
|
3328 | |
|
|
3329 | #if EV_FORK_ENABLE |
|
|
3330 | if (types & EV_FORK) |
|
|
3331 | for (i = forkcnt; i--; ) |
|
|
3332 | if (ev_cb (forks [i]) != embed_fork_cb) |
|
|
3333 | cb (EV_A_ EV_FORK, forks [i]); |
|
|
3334 | #endif |
|
|
3335 | |
|
|
3336 | #if EV_ASYNC_ENABLE |
|
|
3337 | if (types & EV_ASYNC) |
|
|
3338 | for (i = asynccnt; i--; ) |
|
|
3339 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
|
|
3340 | #endif |
|
|
3341 | |
|
|
3342 | if (types & EV_PREPARE) |
|
|
3343 | for (i = preparecnt; i--; ) |
|
|
3344 | #if EV_EMBED_ENABLE |
|
|
3345 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
|
|
3346 | #endif |
|
|
3347 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
3348 | |
|
|
3349 | if (types & EV_CHECK) |
|
|
3350 | for (i = checkcnt; i--; ) |
|
|
3351 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
3352 | |
|
|
3353 | if (types & EV_SIGNAL) |
|
|
3354 | for (i = 0; i < signalmax; ++i) |
|
|
3355 | for (wl = signals [i].head; wl; ) |
|
|
3356 | { |
|
|
3357 | wn = wl->next; |
|
|
3358 | cb (EV_A_ EV_SIGNAL, wl); |
|
|
3359 | wl = wn; |
|
|
3360 | } |
|
|
3361 | |
|
|
3362 | if (types & EV_CHILD) |
|
|
3363 | for (i = EV_PID_HASHSIZE; i--; ) |
|
|
3364 | for (wl = childs [i]; wl; ) |
|
|
3365 | { |
|
|
3366 | wn = wl->next; |
|
|
3367 | cb (EV_A_ EV_CHILD, wl); |
|
|
3368 | wl = wn; |
|
|
3369 | } |
|
|
3370 | /* EV_STAT 0x00001000 /* stat data changed */ |
|
|
3371 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
|
|
3372 | } |
|
|
3373 | #endif |
|
|
3374 | |
|
|
3375 | #if EV_MULTIPLICITY |
|
|
3376 | #include "ev_wrap.h" |
|
|
3377 | #endif |
|
|
3378 | |
2306 | #ifdef __cplusplus |
3379 | #ifdef __cplusplus |
2307 | } |
3380 | } |
2308 | #endif |
3381 | #endif |
2309 | |
3382 | |