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 |
… | |
… | |
207 | #if !EV_STAT_ENABLE |
315 | #if !EV_STAT_ENABLE |
208 | # undef EV_USE_INOTIFY |
316 | # undef EV_USE_INOTIFY |
209 | # define EV_USE_INOTIFY 0 |
317 | # define EV_USE_INOTIFY 0 |
210 | #endif |
318 | #endif |
211 | |
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 | |
212 | #if EV_USE_INOTIFY |
326 | #if EV_USE_INOTIFY |
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327 | # include <sys/utsname.h> |
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328 | # include <sys/statfs.h> |
213 | # include <sys/inotify.h> |
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 |
214 | #endif |
335 | #endif |
215 | |
336 | |
216 | #if EV_SELECT_IS_WINSOCKET |
337 | #if EV_SELECT_IS_WINSOCKET |
217 | # include <winsock.h> |
338 | # include <winsock.h> |
218 | #endif |
339 | #endif |
219 | |
340 | |
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341 | #if EV_USE_EVENTFD |
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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" { |
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346 | # endif |
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347 | int eventfd (unsigned int initval, int flags); |
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348 | # ifdef __cplusplus |
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349 | } |
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350 | # endif |
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351 | #endif |
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352 | |
220 | /**/ |
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 |
221 | |
360 | |
222 | /* |
361 | /* |
223 | * This is used to avoid floating point rounding problems. |
362 | * This is used to avoid floating point rounding problems. |
224 | * It is added to ev_rt_now when scheduling periodics |
363 | * It is added to ev_rt_now when scheduling periodics |
225 | * to ensure progress, time-wise, even when rounding |
364 | * to ensure progress, time-wise, even when rounding |
… | |
… | |
237 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
376 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
238 | # define noinline __attribute__ ((noinline)) |
377 | # define noinline __attribute__ ((noinline)) |
239 | #else |
378 | #else |
240 | # define expect(expr,value) (expr) |
379 | # define expect(expr,value) (expr) |
241 | # define noinline |
380 | # define noinline |
242 | # if __STDC_VERSION__ < 199901L |
381 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
243 | # define inline |
382 | # define inline |
244 | # endif |
383 | # endif |
245 | #endif |
384 | #endif |
246 | |
385 | |
247 | #define expect_false(expr) expect ((expr) != 0, 0) |
386 | #define expect_false(expr) expect ((expr) != 0, 0) |
… | |
… | |
252 | # define inline_speed static noinline |
391 | # define inline_speed static noinline |
253 | #else |
392 | #else |
254 | # define inline_speed static inline |
393 | # define inline_speed static inline |
255 | #endif |
394 | #endif |
256 | |
395 | |
257 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
396 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
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397 | |
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398 | #if EV_MINPRI == EV_MAXPRI |
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399 | # define ABSPRI(w) (((W)w), 0) |
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400 | #else |
258 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
401 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
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402 | #endif |
259 | |
403 | |
260 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
404 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
261 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
405 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
262 | |
406 | |
263 | typedef ev_watcher *W; |
407 | typedef ev_watcher *W; |
264 | typedef ev_watcher_list *WL; |
408 | typedef ev_watcher_list *WL; |
265 | typedef ev_watcher_time *WT; |
409 | typedef ev_watcher_time *WT; |
266 | |
410 | |
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411 | #define ev_active(w) ((W)(w))->active |
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412 | #define ev_at(w) ((WT)(w))->at |
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413 | |
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414 | #if EV_USE_REALTIME |
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415 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
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416 | /* giving it a reasonably high chance of working on typical architetcures */ |
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417 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
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418 | #endif |
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419 | |
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420 | #if EV_USE_MONOTONIC |
267 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
421 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
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422 | #endif |
268 | |
423 | |
269 | #ifdef _WIN32 |
424 | #ifdef _WIN32 |
270 | # include "ev_win32.c" |
425 | # include "ev_win32.c" |
271 | #endif |
426 | #endif |
272 | |
427 | |
… | |
… | |
279 | { |
434 | { |
280 | syserr_cb = cb; |
435 | syserr_cb = cb; |
281 | } |
436 | } |
282 | |
437 | |
283 | static void noinline |
438 | static void noinline |
284 | syserr (const char *msg) |
439 | ev_syserr (const char *msg) |
285 | { |
440 | { |
286 | if (!msg) |
441 | if (!msg) |
287 | msg = "(libev) system error"; |
442 | msg = "(libev) system error"; |
288 | |
443 | |
289 | if (syserr_cb) |
444 | if (syserr_cb) |
… | |
… | |
293 | perror (msg); |
448 | perror (msg); |
294 | abort (); |
449 | abort (); |
295 | } |
450 | } |
296 | } |
451 | } |
297 | |
452 | |
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453 | static void * |
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454 | ev_realloc_emul (void *ptr, long size) |
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455 | { |
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456 | /* some systems, notably openbsd and darwin, fail to properly |
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457 | * implement realloc (x, 0) (as required by both ansi c-98 and |
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458 | * the single unix specification, so work around them here. |
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459 | */ |
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460 | |
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461 | if (size) |
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462 | return realloc (ptr, size); |
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463 | |
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464 | free (ptr); |
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465 | return 0; |
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466 | } |
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467 | |
298 | static void *(*alloc)(void *ptr, long size); |
468 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
299 | |
469 | |
300 | void |
470 | void |
301 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
471 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
302 | { |
472 | { |
303 | alloc = cb; |
473 | alloc = cb; |
304 | } |
474 | } |
305 | |
475 | |
306 | inline_speed void * |
476 | inline_speed void * |
307 | ev_realloc (void *ptr, long size) |
477 | ev_realloc (void *ptr, long size) |
308 | { |
478 | { |
309 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
479 | ptr = alloc (ptr, size); |
310 | |
480 | |
311 | if (!ptr && size) |
481 | if (!ptr && size) |
312 | { |
482 | { |
313 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
483 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
314 | abort (); |
484 | abort (); |
… | |
… | |
320 | #define ev_malloc(size) ev_realloc (0, (size)) |
490 | #define ev_malloc(size) ev_realloc (0, (size)) |
321 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
491 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
322 | |
492 | |
323 | /*****************************************************************************/ |
493 | /*****************************************************************************/ |
324 | |
494 | |
|
|
495 | /* file descriptor info structure */ |
325 | typedef struct |
496 | typedef struct |
326 | { |
497 | { |
327 | WL head; |
498 | WL head; |
328 | unsigned char events; |
499 | unsigned char events; /* the events watched for */ |
|
|
500 | unsigned char reify; /* flag set when this ANFD needs reification */ |
|
|
501 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
329 | unsigned char reify; |
502 | unsigned char unused; |
|
|
503 | #if EV_USE_EPOLL |
|
|
504 | unsigned int egen; /* generation counter to counter epoll bugs */ |
|
|
505 | #endif |
330 | #if EV_SELECT_IS_WINSOCKET |
506 | #if EV_SELECT_IS_WINSOCKET |
331 | SOCKET handle; |
507 | SOCKET handle; |
332 | #endif |
508 | #endif |
333 | } ANFD; |
509 | } ANFD; |
334 | |
510 | |
|
|
511 | /* stores the pending event set for a given watcher */ |
335 | typedef struct |
512 | typedef struct |
336 | { |
513 | { |
337 | W w; |
514 | W w; |
338 | int events; |
515 | int events; /* the pending event set for the given watcher */ |
339 | } ANPENDING; |
516 | } ANPENDING; |
340 | |
517 | |
341 | #if EV_USE_INOTIFY |
518 | #if EV_USE_INOTIFY |
|
|
519 | /* hash table entry per inotify-id */ |
342 | typedef struct |
520 | typedef struct |
343 | { |
521 | { |
344 | WL head; |
522 | WL head; |
345 | } ANFS; |
523 | } ANFS; |
|
|
524 | #endif |
|
|
525 | |
|
|
526 | /* Heap Entry */ |
|
|
527 | #if EV_HEAP_CACHE_AT |
|
|
528 | /* a heap element */ |
|
|
529 | typedef struct { |
|
|
530 | ev_tstamp at; |
|
|
531 | WT w; |
|
|
532 | } ANHE; |
|
|
533 | |
|
|
534 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
|
|
535 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
|
|
536 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
|
|
537 | #else |
|
|
538 | /* a heap element */ |
|
|
539 | typedef WT ANHE; |
|
|
540 | |
|
|
541 | #define ANHE_w(he) (he) |
|
|
542 | #define ANHE_at(he) (he)->at |
|
|
543 | #define ANHE_at_cache(he) |
346 | #endif |
544 | #endif |
347 | |
545 | |
348 | #if EV_MULTIPLICITY |
546 | #if EV_MULTIPLICITY |
349 | |
547 | |
350 | struct ev_loop |
548 | struct ev_loop |
… | |
… | |
371 | |
569 | |
372 | #endif |
570 | #endif |
373 | |
571 | |
374 | /*****************************************************************************/ |
572 | /*****************************************************************************/ |
375 | |
573 | |
|
|
574 | #ifndef EV_HAVE_EV_TIME |
376 | ev_tstamp |
575 | ev_tstamp |
377 | ev_time (void) |
576 | ev_time (void) |
378 | { |
577 | { |
379 | #if EV_USE_REALTIME |
578 | #if EV_USE_REALTIME |
|
|
579 | if (expect_true (have_realtime)) |
|
|
580 | { |
380 | struct timespec ts; |
581 | struct timespec ts; |
381 | clock_gettime (CLOCK_REALTIME, &ts); |
582 | clock_gettime (CLOCK_REALTIME, &ts); |
382 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
583 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
383 | #else |
584 | } |
|
|
585 | #endif |
|
|
586 | |
384 | struct timeval tv; |
587 | struct timeval tv; |
385 | gettimeofday (&tv, 0); |
588 | gettimeofday (&tv, 0); |
386 | return tv.tv_sec + tv.tv_usec * 1e-6; |
589 | return tv.tv_sec + tv.tv_usec * 1e-6; |
387 | #endif |
|
|
388 | } |
590 | } |
|
|
591 | #endif |
389 | |
592 | |
390 | ev_tstamp inline_size |
593 | inline_size ev_tstamp |
391 | get_clock (void) |
594 | get_clock (void) |
392 | { |
595 | { |
393 | #if EV_USE_MONOTONIC |
596 | #if EV_USE_MONOTONIC |
394 | if (expect_true (have_monotonic)) |
597 | if (expect_true (have_monotonic)) |
395 | { |
598 | { |
… | |
… | |
408 | { |
611 | { |
409 | return ev_rt_now; |
612 | return ev_rt_now; |
410 | } |
613 | } |
411 | #endif |
614 | #endif |
412 | |
615 | |
413 | int inline_size |
616 | void |
|
|
617 | ev_sleep (ev_tstamp delay) |
|
|
618 | { |
|
|
619 | if (delay > 0.) |
|
|
620 | { |
|
|
621 | #if EV_USE_NANOSLEEP |
|
|
622 | struct timespec ts; |
|
|
623 | |
|
|
624 | ts.tv_sec = (time_t)delay; |
|
|
625 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
626 | |
|
|
627 | nanosleep (&ts, 0); |
|
|
628 | #elif defined(_WIN32) |
|
|
629 | Sleep ((unsigned long)(delay * 1e3)); |
|
|
630 | #else |
|
|
631 | struct timeval tv; |
|
|
632 | |
|
|
633 | tv.tv_sec = (time_t)delay; |
|
|
634 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
|
|
635 | |
|
|
636 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
|
|
637 | /* somehting not guaranteed by newer posix versions, but guaranteed */ |
|
|
638 | /* by older ones */ |
|
|
639 | select (0, 0, 0, 0, &tv); |
|
|
640 | #endif |
|
|
641 | } |
|
|
642 | } |
|
|
643 | |
|
|
644 | /*****************************************************************************/ |
|
|
645 | |
|
|
646 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
|
|
647 | |
|
|
648 | /* find a suitable new size for the given array, */ |
|
|
649 | /* hopefully by rounding to a ncie-to-malloc size */ |
|
|
650 | inline_size int |
414 | array_nextsize (int elem, int cur, int cnt) |
651 | array_nextsize (int elem, int cur, int cnt) |
415 | { |
652 | { |
416 | int ncur = cur + 1; |
653 | int ncur = cur + 1; |
417 | |
654 | |
418 | do |
655 | do |
419 | ncur <<= 1; |
656 | ncur <<= 1; |
420 | while (cnt > ncur); |
657 | while (cnt > ncur); |
421 | |
658 | |
422 | /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */ |
659 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
423 | if (elem * ncur > 4096) |
660 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
424 | { |
661 | { |
425 | ncur *= elem; |
662 | ncur *= elem; |
426 | ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095; |
663 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
427 | ncur = ncur - sizeof (void *) * 4; |
664 | ncur = ncur - sizeof (void *) * 4; |
428 | ncur /= elem; |
665 | ncur /= elem; |
429 | } |
666 | } |
430 | |
667 | |
431 | return ncur; |
668 | return ncur; |
… | |
… | |
435 | array_realloc (int elem, void *base, int *cur, int cnt) |
672 | array_realloc (int elem, void *base, int *cur, int cnt) |
436 | { |
673 | { |
437 | *cur = array_nextsize (elem, *cur, cnt); |
674 | *cur = array_nextsize (elem, *cur, cnt); |
438 | return ev_realloc (base, elem * *cur); |
675 | return ev_realloc (base, elem * *cur); |
439 | } |
676 | } |
|
|
677 | |
|
|
678 | #define array_init_zero(base,count) \ |
|
|
679 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
440 | |
680 | |
441 | #define array_needsize(type,base,cur,cnt,init) \ |
681 | #define array_needsize(type,base,cur,cnt,init) \ |
442 | if (expect_false ((cnt) > (cur))) \ |
682 | if (expect_false ((cnt) > (cur))) \ |
443 | { \ |
683 | { \ |
444 | int ocur_ = (cur); \ |
684 | int ocur_ = (cur); \ |
… | |
… | |
456 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
696 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
457 | } |
697 | } |
458 | #endif |
698 | #endif |
459 | |
699 | |
460 | #define array_free(stem, idx) \ |
700 | #define array_free(stem, idx) \ |
461 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
701 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
462 | |
702 | |
463 | /*****************************************************************************/ |
703 | /*****************************************************************************/ |
|
|
704 | |
|
|
705 | /* dummy callback for pending events */ |
|
|
706 | static void noinline |
|
|
707 | pendingcb (EV_P_ ev_prepare *w, int revents) |
|
|
708 | { |
|
|
709 | } |
464 | |
710 | |
465 | void noinline |
711 | void noinline |
466 | ev_feed_event (EV_P_ void *w, int revents) |
712 | ev_feed_event (EV_P_ void *w, int revents) |
467 | { |
713 | { |
468 | W w_ = (W)w; |
714 | W w_ = (W)w; |
… | |
… | |
477 | pendings [pri][w_->pending - 1].w = w_; |
723 | pendings [pri][w_->pending - 1].w = w_; |
478 | pendings [pri][w_->pending - 1].events = revents; |
724 | pendings [pri][w_->pending - 1].events = revents; |
479 | } |
725 | } |
480 | } |
726 | } |
481 | |
727 | |
482 | void inline_speed |
728 | inline_speed void |
|
|
729 | feed_reverse (EV_P_ W w) |
|
|
730 | { |
|
|
731 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
|
|
732 | rfeeds [rfeedcnt++] = w; |
|
|
733 | } |
|
|
734 | |
|
|
735 | inline_size void |
|
|
736 | feed_reverse_done (EV_P_ int revents) |
|
|
737 | { |
|
|
738 | do |
|
|
739 | ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents); |
|
|
740 | while (rfeedcnt); |
|
|
741 | } |
|
|
742 | |
|
|
743 | inline_speed void |
483 | queue_events (EV_P_ W *events, int eventcnt, int type) |
744 | queue_events (EV_P_ W *events, int eventcnt, int type) |
484 | { |
745 | { |
485 | int i; |
746 | int i; |
486 | |
747 | |
487 | for (i = 0; i < eventcnt; ++i) |
748 | for (i = 0; i < eventcnt; ++i) |
488 | ev_feed_event (EV_A_ events [i], type); |
749 | ev_feed_event (EV_A_ events [i], type); |
489 | } |
750 | } |
490 | |
751 | |
491 | /*****************************************************************************/ |
752 | /*****************************************************************************/ |
492 | |
753 | |
493 | void inline_size |
754 | inline_speed void |
494 | anfds_init (ANFD *base, int count) |
|
|
495 | { |
|
|
496 | while (count--) |
|
|
497 | { |
|
|
498 | base->head = 0; |
|
|
499 | base->events = EV_NONE; |
|
|
500 | base->reify = 0; |
|
|
501 | |
|
|
502 | ++base; |
|
|
503 | } |
|
|
504 | } |
|
|
505 | |
|
|
506 | void inline_speed |
|
|
507 | fd_event (EV_P_ int fd, int revents) |
755 | fd_event (EV_P_ int fd, int revents) |
508 | { |
756 | { |
509 | ANFD *anfd = anfds + fd; |
757 | ANFD *anfd = anfds + fd; |
510 | ev_io *w; |
758 | ev_io *w; |
511 | |
759 | |
… | |
… | |
523 | { |
771 | { |
524 | if (fd >= 0 && fd < anfdmax) |
772 | if (fd >= 0 && fd < anfdmax) |
525 | fd_event (EV_A_ fd, revents); |
773 | fd_event (EV_A_ fd, revents); |
526 | } |
774 | } |
527 | |
775 | |
528 | void inline_size |
776 | /* make sure the external fd watch events are in-sync */ |
|
|
777 | /* with the kernel/libev internal state */ |
|
|
778 | inline_size void |
529 | fd_reify (EV_P) |
779 | fd_reify (EV_P) |
530 | { |
780 | { |
531 | int i; |
781 | int i; |
532 | |
782 | |
533 | for (i = 0; i < fdchangecnt; ++i) |
783 | for (i = 0; i < fdchangecnt; ++i) |
… | |
… | |
542 | events |= (unsigned char)w->events; |
792 | events |= (unsigned char)w->events; |
543 | |
793 | |
544 | #if EV_SELECT_IS_WINSOCKET |
794 | #if EV_SELECT_IS_WINSOCKET |
545 | if (events) |
795 | if (events) |
546 | { |
796 | { |
547 | unsigned long argp; |
797 | unsigned long arg; |
|
|
798 | #ifdef EV_FD_TO_WIN32_HANDLE |
|
|
799 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
800 | #else |
548 | anfd->handle = _get_osfhandle (fd); |
801 | anfd->handle = _get_osfhandle (fd); |
|
|
802 | #endif |
549 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
803 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
550 | } |
804 | } |
551 | #endif |
805 | #endif |
552 | |
806 | |
553 | { |
807 | { |
554 | unsigned char o_events = anfd->events; |
808 | unsigned char o_events = anfd->events; |
555 | unsigned char o_reify = anfd->reify; |
809 | unsigned char o_reify = anfd->reify; |
556 | |
810 | |
557 | anfd->reify = 0; |
811 | anfd->reify = 0; |
558 | anfd->events = events; |
812 | anfd->events = events; |
559 | |
813 | |
560 | if (o_events != events || o_reify & EV_IOFDSET) |
814 | if (o_events != events || o_reify & EV__IOFDSET) |
561 | backend_modify (EV_A_ fd, o_events, events); |
815 | backend_modify (EV_A_ fd, o_events, events); |
562 | } |
816 | } |
563 | } |
817 | } |
564 | |
818 | |
565 | fdchangecnt = 0; |
819 | fdchangecnt = 0; |
566 | } |
820 | } |
567 | |
821 | |
568 | void inline_size |
822 | /* something about the given fd changed */ |
|
|
823 | inline_size void |
569 | fd_change (EV_P_ int fd, int flags) |
824 | fd_change (EV_P_ int fd, int flags) |
570 | { |
825 | { |
571 | unsigned char reify = anfds [fd].reify; |
826 | unsigned char reify = anfds [fd].reify; |
572 | anfds [fd].reify |= flags; |
827 | anfds [fd].reify |= flags; |
573 | |
828 | |
… | |
… | |
577 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
832 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
578 | fdchanges [fdchangecnt - 1] = fd; |
833 | fdchanges [fdchangecnt - 1] = fd; |
579 | } |
834 | } |
580 | } |
835 | } |
581 | |
836 | |
582 | void inline_speed |
837 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
|
|
838 | inline_speed void |
583 | fd_kill (EV_P_ int fd) |
839 | fd_kill (EV_P_ int fd) |
584 | { |
840 | { |
585 | ev_io *w; |
841 | ev_io *w; |
586 | |
842 | |
587 | while ((w = (ev_io *)anfds [fd].head)) |
843 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
589 | ev_io_stop (EV_A_ w); |
845 | ev_io_stop (EV_A_ w); |
590 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
846 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
591 | } |
847 | } |
592 | } |
848 | } |
593 | |
849 | |
594 | int inline_size |
850 | /* check whether the given fd is atcually valid, for error recovery */ |
|
|
851 | inline_size int |
595 | fd_valid (int fd) |
852 | fd_valid (int fd) |
596 | { |
853 | { |
597 | #ifdef _WIN32 |
854 | #ifdef _WIN32 |
598 | return _get_osfhandle (fd) != -1; |
855 | return _get_osfhandle (fd) != -1; |
599 | #else |
856 | #else |
… | |
… | |
607 | { |
864 | { |
608 | int fd; |
865 | int fd; |
609 | |
866 | |
610 | for (fd = 0; fd < anfdmax; ++fd) |
867 | for (fd = 0; fd < anfdmax; ++fd) |
611 | if (anfds [fd].events) |
868 | if (anfds [fd].events) |
612 | if (!fd_valid (fd) == -1 && errno == EBADF) |
869 | if (!fd_valid (fd) && errno == EBADF) |
613 | fd_kill (EV_A_ fd); |
870 | fd_kill (EV_A_ fd); |
614 | } |
871 | } |
615 | |
872 | |
616 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
873 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
617 | static void noinline |
874 | static void noinline |
… | |
… | |
635 | |
892 | |
636 | for (fd = 0; fd < anfdmax; ++fd) |
893 | for (fd = 0; fd < anfdmax; ++fd) |
637 | if (anfds [fd].events) |
894 | if (anfds [fd].events) |
638 | { |
895 | { |
639 | anfds [fd].events = 0; |
896 | anfds [fd].events = 0; |
|
|
897 | anfds [fd].emask = 0; |
640 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
898 | fd_change (EV_A_ fd, EV__IOFDSET | 1); |
641 | } |
899 | } |
642 | } |
900 | } |
643 | |
901 | |
644 | /*****************************************************************************/ |
902 | /*****************************************************************************/ |
645 | |
903 | |
646 | void inline_speed |
904 | /* |
647 | upheap (WT *heap, int k) |
905 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
648 | { |
906 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
649 | WT w = heap [k]; |
907 | * the branching factor of the d-tree. |
|
|
908 | */ |
650 | |
909 | |
651 | while (k) |
910 | /* |
652 | { |
911 | * at the moment we allow libev the luxury of two heaps, |
653 | int p = (k - 1) >> 1; |
912 | * a small-code-size 2-heap one and a ~1.5kb larger 4-heap |
|
|
913 | * which is more cache-efficient. |
|
|
914 | * the difference is about 5% with 50000+ watchers. |
|
|
915 | */ |
|
|
916 | #if EV_USE_4HEAP |
654 | |
917 | |
655 | if (heap [p]->at <= w->at) |
918 | #define DHEAP 4 |
|
|
919 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
|
|
920 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
|
|
921 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
|
|
922 | |
|
|
923 | /* away from the root */ |
|
|
924 | inline_speed void |
|
|
925 | downheap (ANHE *heap, int N, int k) |
|
|
926 | { |
|
|
927 | ANHE he = heap [k]; |
|
|
928 | ANHE *E = heap + N + HEAP0; |
|
|
929 | |
|
|
930 | for (;;) |
|
|
931 | { |
|
|
932 | ev_tstamp minat; |
|
|
933 | ANHE *minpos; |
|
|
934 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
|
|
935 | |
|
|
936 | /* find minimum child */ |
|
|
937 | if (expect_true (pos + DHEAP - 1 < E)) |
|
|
938 | { |
|
|
939 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
940 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
941 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
942 | if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
943 | } |
|
|
944 | else if (pos < E) |
|
|
945 | { |
|
|
946 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
947 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
948 | if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
949 | if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
950 | } |
|
|
951 | else |
656 | break; |
952 | break; |
657 | |
953 | |
|
|
954 | if (ANHE_at (he) <= minat) |
|
|
955 | break; |
|
|
956 | |
|
|
957 | heap [k] = *minpos; |
|
|
958 | ev_active (ANHE_w (*minpos)) = k; |
|
|
959 | |
|
|
960 | k = minpos - heap; |
|
|
961 | } |
|
|
962 | |
|
|
963 | heap [k] = he; |
|
|
964 | ev_active (ANHE_w (he)) = k; |
|
|
965 | } |
|
|
966 | |
|
|
967 | #else /* 4HEAP */ |
|
|
968 | |
|
|
969 | #define HEAP0 1 |
|
|
970 | #define HPARENT(k) ((k) >> 1) |
|
|
971 | #define UPHEAP_DONE(p,k) (!(p)) |
|
|
972 | |
|
|
973 | /* away from the root */ |
|
|
974 | inline_speed void |
|
|
975 | downheap (ANHE *heap, int N, int k) |
|
|
976 | { |
|
|
977 | ANHE he = heap [k]; |
|
|
978 | |
|
|
979 | for (;;) |
|
|
980 | { |
|
|
981 | int c = k << 1; |
|
|
982 | |
|
|
983 | if (c > N + HEAP0 - 1) |
|
|
984 | break; |
|
|
985 | |
|
|
986 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
|
|
987 | ? 1 : 0; |
|
|
988 | |
|
|
989 | if (ANHE_at (he) <= ANHE_at (heap [c])) |
|
|
990 | break; |
|
|
991 | |
|
|
992 | heap [k] = heap [c]; |
|
|
993 | ev_active (ANHE_w (heap [k])) = k; |
|
|
994 | |
|
|
995 | k = c; |
|
|
996 | } |
|
|
997 | |
|
|
998 | heap [k] = he; |
|
|
999 | ev_active (ANHE_w (he)) = k; |
|
|
1000 | } |
|
|
1001 | #endif |
|
|
1002 | |
|
|
1003 | /* towards the root */ |
|
|
1004 | inline_speed void |
|
|
1005 | upheap (ANHE *heap, int k) |
|
|
1006 | { |
|
|
1007 | ANHE he = heap [k]; |
|
|
1008 | |
|
|
1009 | for (;;) |
|
|
1010 | { |
|
|
1011 | int p = HPARENT (k); |
|
|
1012 | |
|
|
1013 | if (UPHEAP_DONE (p, k) || ANHE_at (heap [p]) <= ANHE_at (he)) |
|
|
1014 | break; |
|
|
1015 | |
658 | heap [k] = heap [p]; |
1016 | heap [k] = heap [p]; |
659 | ((W)heap [k])->active = k + 1; |
1017 | ev_active (ANHE_w (heap [k])) = k; |
660 | k = p; |
1018 | k = p; |
661 | } |
1019 | } |
662 | |
1020 | |
663 | heap [k] = w; |
1021 | heap [k] = he; |
664 | ((W)heap [k])->active = k + 1; |
1022 | ev_active (ANHE_w (he)) = k; |
665 | } |
1023 | } |
666 | |
1024 | |
667 | void inline_speed |
1025 | /* move an element suitably so it is in a correct place */ |
668 | downheap (WT *heap, int N, int k) |
1026 | inline_size void |
669 | { |
|
|
670 | WT w = heap [k]; |
|
|
671 | |
|
|
672 | for (;;) |
|
|
673 | { |
|
|
674 | int c = (k << 1) + 1; |
|
|
675 | |
|
|
676 | if (c >= N) |
|
|
677 | break; |
|
|
678 | |
|
|
679 | c += c + 1 < N && heap [c]->at > heap [c + 1]->at |
|
|
680 | ? 1 : 0; |
|
|
681 | |
|
|
682 | if (w->at <= heap [c]->at) |
|
|
683 | break; |
|
|
684 | |
|
|
685 | heap [k] = heap [c]; |
|
|
686 | ((W)heap [k])->active = k + 1; |
|
|
687 | |
|
|
688 | k = c; |
|
|
689 | } |
|
|
690 | |
|
|
691 | heap [k] = w; |
|
|
692 | ((W)heap [k])->active = k + 1; |
|
|
693 | } |
|
|
694 | |
|
|
695 | void inline_size |
|
|
696 | adjustheap (WT *heap, int N, int k) |
1027 | adjustheap (ANHE *heap, int N, int k) |
697 | { |
1028 | { |
|
|
1029 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
698 | upheap (heap, k); |
1030 | upheap (heap, k); |
|
|
1031 | else |
699 | downheap (heap, N, k); |
1032 | downheap (heap, N, k); |
|
|
1033 | } |
|
|
1034 | |
|
|
1035 | /* rebuild the heap: this function is used only once and executed rarely */ |
|
|
1036 | inline_size void |
|
|
1037 | reheap (ANHE *heap, int N) |
|
|
1038 | { |
|
|
1039 | int i; |
|
|
1040 | |
|
|
1041 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
|
|
1042 | /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */ |
|
|
1043 | for (i = 0; i < N; ++i) |
|
|
1044 | upheap (heap, i + HEAP0); |
700 | } |
1045 | } |
701 | |
1046 | |
702 | /*****************************************************************************/ |
1047 | /*****************************************************************************/ |
703 | |
1048 | |
|
|
1049 | /* associate signal watchers to a signal signal */ |
704 | typedef struct |
1050 | typedef struct |
705 | { |
1051 | { |
706 | WL head; |
1052 | WL head; |
707 | sig_atomic_t volatile gotsig; |
1053 | EV_ATOMIC_T gotsig; |
708 | } ANSIG; |
1054 | } ANSIG; |
709 | |
1055 | |
710 | static ANSIG *signals; |
1056 | static ANSIG *signals; |
711 | static int signalmax; |
1057 | static int signalmax; |
712 | |
1058 | |
713 | static int sigpipe [2]; |
1059 | static EV_ATOMIC_T gotsig; |
714 | static sig_atomic_t volatile gotsig; |
|
|
715 | static ev_io sigev; |
|
|
716 | |
1060 | |
717 | void inline_size |
1061 | /*****************************************************************************/ |
718 | signals_init (ANSIG *base, int count) |
|
|
719 | { |
|
|
720 | while (count--) |
|
|
721 | { |
|
|
722 | base->head = 0; |
|
|
723 | base->gotsig = 0; |
|
|
724 | |
1062 | |
725 | ++base; |
1063 | /* used to prepare libev internal fd's */ |
726 | } |
1064 | /* this is not fork-safe */ |
727 | } |
1065 | inline_speed void |
728 | |
|
|
729 | static void |
|
|
730 | sighandler (int signum) |
|
|
731 | { |
|
|
732 | #if _WIN32 |
|
|
733 | signal (signum, sighandler); |
|
|
734 | #endif |
|
|
735 | |
|
|
736 | signals [signum - 1].gotsig = 1; |
|
|
737 | |
|
|
738 | if (!gotsig) |
|
|
739 | { |
|
|
740 | int old_errno = errno; |
|
|
741 | gotsig = 1; |
|
|
742 | write (sigpipe [1], &signum, 1); |
|
|
743 | errno = old_errno; |
|
|
744 | } |
|
|
745 | } |
|
|
746 | |
|
|
747 | void noinline |
|
|
748 | ev_feed_signal_event (EV_P_ int signum) |
|
|
749 | { |
|
|
750 | WL w; |
|
|
751 | |
|
|
752 | #if EV_MULTIPLICITY |
|
|
753 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
754 | #endif |
|
|
755 | |
|
|
756 | --signum; |
|
|
757 | |
|
|
758 | if (signum < 0 || signum >= signalmax) |
|
|
759 | return; |
|
|
760 | |
|
|
761 | signals [signum].gotsig = 0; |
|
|
762 | |
|
|
763 | for (w = signals [signum].head; w; w = w->next) |
|
|
764 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
765 | } |
|
|
766 | |
|
|
767 | static void |
|
|
768 | sigcb (EV_P_ ev_io *iow, int revents) |
|
|
769 | { |
|
|
770 | int signum; |
|
|
771 | |
|
|
772 | read (sigpipe [0], &revents, 1); |
|
|
773 | gotsig = 0; |
|
|
774 | |
|
|
775 | for (signum = signalmax; signum--; ) |
|
|
776 | if (signals [signum].gotsig) |
|
|
777 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
778 | } |
|
|
779 | |
|
|
780 | void inline_speed |
|
|
781 | fd_intern (int fd) |
1066 | fd_intern (int fd) |
782 | { |
1067 | { |
783 | #ifdef _WIN32 |
1068 | #ifdef _WIN32 |
784 | int arg = 1; |
1069 | unsigned long arg = 1; |
785 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
1070 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
786 | #else |
1071 | #else |
787 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
1072 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
788 | fcntl (fd, F_SETFL, O_NONBLOCK); |
1073 | fcntl (fd, F_SETFL, O_NONBLOCK); |
789 | #endif |
1074 | #endif |
790 | } |
1075 | } |
791 | |
1076 | |
792 | static void noinline |
1077 | static void noinline |
793 | siginit (EV_P) |
1078 | evpipe_init (EV_P) |
794 | { |
1079 | { |
|
|
1080 | if (!ev_is_active (&pipe_w)) |
|
|
1081 | { |
|
|
1082 | #if EV_USE_EVENTFD |
|
|
1083 | if ((evfd = eventfd (0, 0)) >= 0) |
|
|
1084 | { |
|
|
1085 | evpipe [0] = -1; |
|
|
1086 | fd_intern (evfd); |
|
|
1087 | ev_io_set (&pipe_w, evfd, EV_READ); |
|
|
1088 | } |
|
|
1089 | else |
|
|
1090 | #endif |
|
|
1091 | { |
|
|
1092 | while (pipe (evpipe)) |
|
|
1093 | ev_syserr ("(libev) error creating signal/async pipe"); |
|
|
1094 | |
795 | fd_intern (sigpipe [0]); |
1095 | fd_intern (evpipe [0]); |
796 | fd_intern (sigpipe [1]); |
1096 | fd_intern (evpipe [1]); |
|
|
1097 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
|
|
1098 | } |
797 | |
1099 | |
798 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
|
|
799 | ev_io_start (EV_A_ &sigev); |
1100 | ev_io_start (EV_A_ &pipe_w); |
800 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1101 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
1102 | } |
|
|
1103 | } |
|
|
1104 | |
|
|
1105 | inline_size void |
|
|
1106 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1107 | { |
|
|
1108 | if (!*flag) |
|
|
1109 | { |
|
|
1110 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1111 | |
|
|
1112 | *flag = 1; |
|
|
1113 | |
|
|
1114 | #if EV_USE_EVENTFD |
|
|
1115 | if (evfd >= 0) |
|
|
1116 | { |
|
|
1117 | uint64_t counter = 1; |
|
|
1118 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
1119 | } |
|
|
1120 | else |
|
|
1121 | #endif |
|
|
1122 | write (evpipe [1], &old_errno, 1); |
|
|
1123 | |
|
|
1124 | errno = old_errno; |
|
|
1125 | } |
|
|
1126 | } |
|
|
1127 | |
|
|
1128 | /* called whenever the libev signal pipe */ |
|
|
1129 | /* got some events (signal, async) */ |
|
|
1130 | static void |
|
|
1131 | pipecb (EV_P_ ev_io *iow, int revents) |
|
|
1132 | { |
|
|
1133 | #if EV_USE_EVENTFD |
|
|
1134 | if (evfd >= 0) |
|
|
1135 | { |
|
|
1136 | uint64_t counter; |
|
|
1137 | read (evfd, &counter, sizeof (uint64_t)); |
|
|
1138 | } |
|
|
1139 | else |
|
|
1140 | #endif |
|
|
1141 | { |
|
|
1142 | char dummy; |
|
|
1143 | read (evpipe [0], &dummy, 1); |
|
|
1144 | } |
|
|
1145 | |
|
|
1146 | if (gotsig && ev_is_default_loop (EV_A)) |
|
|
1147 | { |
|
|
1148 | int signum; |
|
|
1149 | gotsig = 0; |
|
|
1150 | |
|
|
1151 | for (signum = signalmax; signum--; ) |
|
|
1152 | if (signals [signum].gotsig) |
|
|
1153 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
1154 | } |
|
|
1155 | |
|
|
1156 | #if EV_ASYNC_ENABLE |
|
|
1157 | if (gotasync) |
|
|
1158 | { |
|
|
1159 | int i; |
|
|
1160 | gotasync = 0; |
|
|
1161 | |
|
|
1162 | for (i = asynccnt; i--; ) |
|
|
1163 | if (asyncs [i]->sent) |
|
|
1164 | { |
|
|
1165 | asyncs [i]->sent = 0; |
|
|
1166 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
|
|
1167 | } |
|
|
1168 | } |
|
|
1169 | #endif |
801 | } |
1170 | } |
802 | |
1171 | |
803 | /*****************************************************************************/ |
1172 | /*****************************************************************************/ |
804 | |
1173 | |
|
|
1174 | static void |
|
|
1175 | ev_sighandler (int signum) |
|
|
1176 | { |
|
|
1177 | #if EV_MULTIPLICITY |
|
|
1178 | struct ev_loop *loop = &default_loop_struct; |
|
|
1179 | #endif |
|
|
1180 | |
|
|
1181 | #if _WIN32 |
|
|
1182 | signal (signum, ev_sighandler); |
|
|
1183 | #endif |
|
|
1184 | |
|
|
1185 | signals [signum - 1].gotsig = 1; |
|
|
1186 | evpipe_write (EV_A_ &gotsig); |
|
|
1187 | } |
|
|
1188 | |
|
|
1189 | void noinline |
|
|
1190 | ev_feed_signal_event (EV_P_ int signum) |
|
|
1191 | { |
|
|
1192 | WL w; |
|
|
1193 | |
|
|
1194 | #if EV_MULTIPLICITY |
|
|
1195 | assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1196 | #endif |
|
|
1197 | |
|
|
1198 | --signum; |
|
|
1199 | |
|
|
1200 | if (signum < 0 || signum >= signalmax) |
|
|
1201 | return; |
|
|
1202 | |
|
|
1203 | signals [signum].gotsig = 0; |
|
|
1204 | |
|
|
1205 | for (w = signals [signum].head; w; w = w->next) |
|
|
1206 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
1207 | } |
|
|
1208 | |
|
|
1209 | /*****************************************************************************/ |
|
|
1210 | |
805 | static WL childs [EV_PID_HASHSIZE]; |
1211 | static WL childs [EV_PID_HASHSIZE]; |
806 | |
1212 | |
807 | #ifndef _WIN32 |
1213 | #ifndef _WIN32 |
808 | |
1214 | |
809 | static ev_signal childev; |
1215 | static ev_signal childev; |
810 | |
1216 | |
811 | void inline_speed |
1217 | #ifndef WIFCONTINUED |
|
|
1218 | # define WIFCONTINUED(status) 0 |
|
|
1219 | #endif |
|
|
1220 | |
|
|
1221 | /* handle a single child status event */ |
|
|
1222 | inline_speed void |
812 | child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) |
1223 | child_reap (EV_P_ int chain, int pid, int status) |
813 | { |
1224 | { |
814 | ev_child *w; |
1225 | ev_child *w; |
|
|
1226 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
815 | |
1227 | |
816 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1228 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1229 | { |
817 | if (w->pid == pid || !w->pid) |
1230 | if ((w->pid == pid || !w->pid) |
|
|
1231 | && (!traced || (w->flags & 1))) |
818 | { |
1232 | { |
819 | ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */ |
1233 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
820 | w->rpid = pid; |
1234 | w->rpid = pid; |
821 | w->rstatus = status; |
1235 | w->rstatus = status; |
822 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
1236 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
823 | } |
1237 | } |
|
|
1238 | } |
824 | } |
1239 | } |
825 | |
1240 | |
826 | #ifndef WCONTINUED |
1241 | #ifndef WCONTINUED |
827 | # define WCONTINUED 0 |
1242 | # define WCONTINUED 0 |
828 | #endif |
1243 | #endif |
829 | |
1244 | |
|
|
1245 | /* called on sigchld etc., calls waitpid */ |
830 | static void |
1246 | static void |
831 | childcb (EV_P_ ev_signal *sw, int revents) |
1247 | childcb (EV_P_ ev_signal *sw, int revents) |
832 | { |
1248 | { |
833 | int pid, status; |
1249 | int pid, status; |
834 | |
1250 | |
… | |
… | |
837 | if (!WCONTINUED |
1253 | if (!WCONTINUED |
838 | || errno != EINVAL |
1254 | || errno != EINVAL |
839 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
1255 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
840 | return; |
1256 | return; |
841 | |
1257 | |
842 | /* make sure we are called again until all childs have been reaped */ |
1258 | /* make sure we are called again until all children have been reaped */ |
843 | /* we need to do it this way so that the callback gets called before we continue */ |
1259 | /* we need to do it this way so that the callback gets called before we continue */ |
844 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1260 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
845 | |
1261 | |
846 | child_reap (EV_A_ sw, pid, pid, status); |
1262 | child_reap (EV_A_ pid, pid, status); |
847 | if (EV_PID_HASHSIZE > 1) |
1263 | if (EV_PID_HASHSIZE > 1) |
848 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1264 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
849 | } |
1265 | } |
850 | |
1266 | |
851 | #endif |
1267 | #endif |
852 | |
1268 | |
853 | /*****************************************************************************/ |
1269 | /*****************************************************************************/ |
… | |
… | |
915 | /* kqueue is borked on everything but netbsd apparently */ |
1331 | /* kqueue is borked on everything but netbsd apparently */ |
916 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1332 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
917 | flags &= ~EVBACKEND_KQUEUE; |
1333 | flags &= ~EVBACKEND_KQUEUE; |
918 | #endif |
1334 | #endif |
919 | #ifdef __APPLE__ |
1335 | #ifdef __APPLE__ |
920 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
1336 | /* only select works correctly on that "unix-certified" platform */ |
921 | flags &= ~EVBACKEND_POLL; |
1337 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
|
|
1338 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
922 | #endif |
1339 | #endif |
923 | |
1340 | |
924 | return flags; |
1341 | return flags; |
925 | } |
1342 | } |
926 | |
1343 | |
927 | unsigned int |
1344 | unsigned int |
928 | ev_embeddable_backends (void) |
1345 | ev_embeddable_backends (void) |
929 | { |
1346 | { |
930 | return EVBACKEND_EPOLL |
1347 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
931 | | EVBACKEND_KQUEUE |
1348 | |
932 | | EVBACKEND_PORT; |
1349 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
|
|
1350 | /* please fix it and tell me how to detect the fix */ |
|
|
1351 | flags &= ~EVBACKEND_EPOLL; |
|
|
1352 | |
|
|
1353 | return flags; |
933 | } |
1354 | } |
934 | |
1355 | |
935 | unsigned int |
1356 | unsigned int |
936 | ev_backend (EV_P) |
1357 | ev_backend (EV_P) |
937 | { |
1358 | { |
… | |
… | |
942 | ev_loop_count (EV_P) |
1363 | ev_loop_count (EV_P) |
943 | { |
1364 | { |
944 | return loop_count; |
1365 | return loop_count; |
945 | } |
1366 | } |
946 | |
1367 | |
|
|
1368 | unsigned int |
|
|
1369 | ev_loop_depth (EV_P) |
|
|
1370 | { |
|
|
1371 | return loop_depth; |
|
|
1372 | } |
|
|
1373 | |
|
|
1374 | void |
|
|
1375 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1376 | { |
|
|
1377 | io_blocktime = interval; |
|
|
1378 | } |
|
|
1379 | |
|
|
1380 | void |
|
|
1381 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1382 | { |
|
|
1383 | timeout_blocktime = interval; |
|
|
1384 | } |
|
|
1385 | |
|
|
1386 | /* initialise a loop structure, must be zero-initialised */ |
947 | static void noinline |
1387 | static void noinline |
948 | loop_init (EV_P_ unsigned int flags) |
1388 | loop_init (EV_P_ unsigned int flags) |
949 | { |
1389 | { |
950 | if (!backend) |
1390 | if (!backend) |
951 | { |
1391 | { |
|
|
1392 | #if EV_USE_REALTIME |
|
|
1393 | if (!have_realtime) |
|
|
1394 | { |
|
|
1395 | struct timespec ts; |
|
|
1396 | |
|
|
1397 | if (!clock_gettime (CLOCK_REALTIME, &ts)) |
|
|
1398 | have_realtime = 1; |
|
|
1399 | } |
|
|
1400 | #endif |
|
|
1401 | |
952 | #if EV_USE_MONOTONIC |
1402 | #if EV_USE_MONOTONIC |
|
|
1403 | if (!have_monotonic) |
953 | { |
1404 | { |
954 | struct timespec ts; |
1405 | struct timespec ts; |
|
|
1406 | |
955 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1407 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
956 | have_monotonic = 1; |
1408 | have_monotonic = 1; |
957 | } |
1409 | } |
958 | #endif |
1410 | #endif |
959 | |
1411 | |
960 | ev_rt_now = ev_time (); |
1412 | ev_rt_now = ev_time (); |
961 | mn_now = get_clock (); |
1413 | mn_now = get_clock (); |
962 | now_floor = mn_now; |
1414 | now_floor = mn_now; |
963 | rtmn_diff = ev_rt_now - mn_now; |
1415 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1416 | |
|
|
1417 | io_blocktime = 0.; |
|
|
1418 | timeout_blocktime = 0.; |
|
|
1419 | backend = 0; |
|
|
1420 | backend_fd = -1; |
|
|
1421 | gotasync = 0; |
|
|
1422 | #if EV_USE_INOTIFY |
|
|
1423 | fs_fd = -2; |
|
|
1424 | #endif |
964 | |
1425 | |
965 | /* pid check not overridable via env */ |
1426 | /* pid check not overridable via env */ |
966 | #ifndef _WIN32 |
1427 | #ifndef _WIN32 |
967 | if (flags & EVFLAG_FORKCHECK) |
1428 | if (flags & EVFLAG_FORKCHECK) |
968 | curpid = getpid (); |
1429 | curpid = getpid (); |
… | |
… | |
971 | if (!(flags & EVFLAG_NOENV) |
1432 | if (!(flags & EVFLAG_NOENV) |
972 | && !enable_secure () |
1433 | && !enable_secure () |
973 | && getenv ("LIBEV_FLAGS")) |
1434 | && getenv ("LIBEV_FLAGS")) |
974 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1435 | flags = atoi (getenv ("LIBEV_FLAGS")); |
975 | |
1436 | |
976 | if (!(flags & 0x0000ffffUL)) |
1437 | if (!(flags & 0x0000ffffU)) |
977 | flags |= ev_recommended_backends (); |
1438 | flags |= ev_recommended_backends (); |
978 | |
|
|
979 | backend = 0; |
|
|
980 | backend_fd = -1; |
|
|
981 | #if EV_USE_INOTIFY |
|
|
982 | fs_fd = -2; |
|
|
983 | #endif |
|
|
984 | |
1439 | |
985 | #if EV_USE_PORT |
1440 | #if EV_USE_PORT |
986 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1441 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
987 | #endif |
1442 | #endif |
988 | #if EV_USE_KQUEUE |
1443 | #if EV_USE_KQUEUE |
… | |
… | |
996 | #endif |
1451 | #endif |
997 | #if EV_USE_SELECT |
1452 | #if EV_USE_SELECT |
998 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1453 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
999 | #endif |
1454 | #endif |
1000 | |
1455 | |
|
|
1456 | ev_prepare_init (&pending_w, pendingcb); |
|
|
1457 | |
1001 | ev_init (&sigev, sigcb); |
1458 | ev_init (&pipe_w, pipecb); |
1002 | ev_set_priority (&sigev, EV_MAXPRI); |
1459 | ev_set_priority (&pipe_w, EV_MAXPRI); |
1003 | } |
1460 | } |
1004 | } |
1461 | } |
1005 | |
1462 | |
|
|
1463 | /* free up a loop structure */ |
1006 | static void noinline |
1464 | static void noinline |
1007 | loop_destroy (EV_P) |
1465 | loop_destroy (EV_P) |
1008 | { |
1466 | { |
1009 | int i; |
1467 | int i; |
|
|
1468 | |
|
|
1469 | if (ev_is_active (&pipe_w)) |
|
|
1470 | { |
|
|
1471 | ev_ref (EV_A); /* signal watcher */ |
|
|
1472 | ev_io_stop (EV_A_ &pipe_w); |
|
|
1473 | |
|
|
1474 | #if EV_USE_EVENTFD |
|
|
1475 | if (evfd >= 0) |
|
|
1476 | close (evfd); |
|
|
1477 | #endif |
|
|
1478 | |
|
|
1479 | if (evpipe [0] >= 0) |
|
|
1480 | { |
|
|
1481 | close (evpipe [0]); |
|
|
1482 | close (evpipe [1]); |
|
|
1483 | } |
|
|
1484 | } |
1010 | |
1485 | |
1011 | #if EV_USE_INOTIFY |
1486 | #if EV_USE_INOTIFY |
1012 | if (fs_fd >= 0) |
1487 | if (fs_fd >= 0) |
1013 | close (fs_fd); |
1488 | close (fs_fd); |
1014 | #endif |
1489 | #endif |
… | |
… | |
1041 | } |
1516 | } |
1042 | |
1517 | |
1043 | ev_free (anfds); anfdmax = 0; |
1518 | ev_free (anfds); anfdmax = 0; |
1044 | |
1519 | |
1045 | /* have to use the microsoft-never-gets-it-right macro */ |
1520 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
1521 | array_free (rfeed, EMPTY); |
1046 | array_free (fdchange, EMPTY); |
1522 | array_free (fdchange, EMPTY); |
1047 | array_free (timer, EMPTY); |
1523 | array_free (timer, EMPTY); |
1048 | #if EV_PERIODIC_ENABLE |
1524 | #if EV_PERIODIC_ENABLE |
1049 | array_free (periodic, EMPTY); |
1525 | array_free (periodic, EMPTY); |
1050 | #endif |
1526 | #endif |
1051 | #if EV_FORK_ENABLE |
1527 | #if EV_FORK_ENABLE |
1052 | array_free (fork, EMPTY); |
1528 | array_free (fork, EMPTY); |
1053 | #endif |
1529 | #endif |
1054 | array_free (prepare, EMPTY); |
1530 | array_free (prepare, EMPTY); |
1055 | array_free (check, EMPTY); |
1531 | array_free (check, EMPTY); |
|
|
1532 | #if EV_ASYNC_ENABLE |
|
|
1533 | array_free (async, EMPTY); |
|
|
1534 | #endif |
1056 | |
1535 | |
1057 | backend = 0; |
1536 | backend = 0; |
1058 | } |
1537 | } |
1059 | |
1538 | |
|
|
1539 | #if EV_USE_INOTIFY |
1060 | void inline_size infy_fork (EV_P); |
1540 | inline_size void infy_fork (EV_P); |
|
|
1541 | #endif |
1061 | |
1542 | |
1062 | void inline_size |
1543 | inline_size void |
1063 | loop_fork (EV_P) |
1544 | loop_fork (EV_P) |
1064 | { |
1545 | { |
1065 | #if EV_USE_PORT |
1546 | #if EV_USE_PORT |
1066 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1547 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1067 | #endif |
1548 | #endif |
… | |
… | |
1073 | #endif |
1554 | #endif |
1074 | #if EV_USE_INOTIFY |
1555 | #if EV_USE_INOTIFY |
1075 | infy_fork (EV_A); |
1556 | infy_fork (EV_A); |
1076 | #endif |
1557 | #endif |
1077 | |
1558 | |
1078 | if (ev_is_active (&sigev)) |
1559 | if (ev_is_active (&pipe_w)) |
1079 | { |
1560 | { |
1080 | /* default loop */ |
1561 | /* this "locks" the handlers against writing to the pipe */ |
|
|
1562 | /* while we modify the fd vars */ |
|
|
1563 | gotsig = 1; |
|
|
1564 | #if EV_ASYNC_ENABLE |
|
|
1565 | gotasync = 1; |
|
|
1566 | #endif |
1081 | |
1567 | |
1082 | ev_ref (EV_A); |
1568 | ev_ref (EV_A); |
1083 | ev_io_stop (EV_A_ &sigev); |
1569 | ev_io_stop (EV_A_ &pipe_w); |
|
|
1570 | |
|
|
1571 | #if EV_USE_EVENTFD |
|
|
1572 | if (evfd >= 0) |
|
|
1573 | close (evfd); |
|
|
1574 | #endif |
|
|
1575 | |
|
|
1576 | if (evpipe [0] >= 0) |
|
|
1577 | { |
1084 | close (sigpipe [0]); |
1578 | close (evpipe [0]); |
1085 | close (sigpipe [1]); |
1579 | close (evpipe [1]); |
|
|
1580 | } |
1086 | |
1581 | |
1087 | while (pipe (sigpipe)) |
|
|
1088 | syserr ("(libev) error creating pipe"); |
|
|
1089 | |
|
|
1090 | siginit (EV_A); |
1582 | evpipe_init (EV_A); |
|
|
1583 | /* now iterate over everything, in case we missed something */ |
|
|
1584 | pipecb (EV_A_ &pipe_w, EV_READ); |
1091 | } |
1585 | } |
1092 | |
1586 | |
1093 | postfork = 0; |
1587 | postfork = 0; |
1094 | } |
1588 | } |
1095 | |
1589 | |
1096 | #if EV_MULTIPLICITY |
1590 | #if EV_MULTIPLICITY |
|
|
1591 | |
1097 | struct ev_loop * |
1592 | struct ev_loop * |
1098 | ev_loop_new (unsigned int flags) |
1593 | ev_loop_new (unsigned int flags) |
1099 | { |
1594 | { |
1100 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1595 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1101 | |
1596 | |
… | |
… | |
1117 | } |
1612 | } |
1118 | |
1613 | |
1119 | void |
1614 | void |
1120 | ev_loop_fork (EV_P) |
1615 | ev_loop_fork (EV_P) |
1121 | { |
1616 | { |
1122 | postfork = 1; |
1617 | postfork = 1; /* must be in line with ev_default_fork */ |
1123 | } |
1618 | } |
1124 | |
1619 | |
|
|
1620 | #if EV_VERIFY |
|
|
1621 | static void noinline |
|
|
1622 | verify_watcher (EV_P_ W w) |
|
|
1623 | { |
|
|
1624 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
|
|
1625 | |
|
|
1626 | if (w->pending) |
|
|
1627 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
|
|
1628 | } |
|
|
1629 | |
|
|
1630 | static void noinline |
|
|
1631 | verify_heap (EV_P_ ANHE *heap, int N) |
|
|
1632 | { |
|
|
1633 | int i; |
|
|
1634 | |
|
|
1635 | for (i = HEAP0; i < N + HEAP0; ++i) |
|
|
1636 | { |
|
|
1637 | assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
|
|
1638 | assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
|
|
1639 | assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
|
|
1640 | |
|
|
1641 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
|
|
1642 | } |
|
|
1643 | } |
|
|
1644 | |
|
|
1645 | static void noinline |
|
|
1646 | array_verify (EV_P_ W *ws, int cnt) |
|
|
1647 | { |
|
|
1648 | while (cnt--) |
|
|
1649 | { |
|
|
1650 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
|
|
1651 | verify_watcher (EV_A_ ws [cnt]); |
|
|
1652 | } |
|
|
1653 | } |
|
|
1654 | #endif |
|
|
1655 | |
|
|
1656 | void |
|
|
1657 | ev_loop_verify (EV_P) |
|
|
1658 | { |
|
|
1659 | #if EV_VERIFY |
|
|
1660 | int i; |
|
|
1661 | WL w; |
|
|
1662 | |
|
|
1663 | assert (activecnt >= -1); |
|
|
1664 | |
|
|
1665 | assert (fdchangemax >= fdchangecnt); |
|
|
1666 | for (i = 0; i < fdchangecnt; ++i) |
|
|
1667 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
|
|
1668 | |
|
|
1669 | assert (anfdmax >= 0); |
|
|
1670 | for (i = 0; i < anfdmax; ++i) |
|
|
1671 | for (w = anfds [i].head; w; w = w->next) |
|
|
1672 | { |
|
|
1673 | verify_watcher (EV_A_ (W)w); |
|
|
1674 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
|
|
1675 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
|
|
1676 | } |
|
|
1677 | |
|
|
1678 | assert (timermax >= timercnt); |
|
|
1679 | verify_heap (EV_A_ timers, timercnt); |
|
|
1680 | |
|
|
1681 | #if EV_PERIODIC_ENABLE |
|
|
1682 | assert (periodicmax >= periodiccnt); |
|
|
1683 | verify_heap (EV_A_ periodics, periodiccnt); |
|
|
1684 | #endif |
|
|
1685 | |
|
|
1686 | for (i = NUMPRI; i--; ) |
|
|
1687 | { |
|
|
1688 | assert (pendingmax [i] >= pendingcnt [i]); |
|
|
1689 | #if EV_IDLE_ENABLE |
|
|
1690 | assert (idleall >= 0); |
|
|
1691 | assert (idlemax [i] >= idlecnt [i]); |
|
|
1692 | array_verify (EV_A_ (W *)idles [i], idlecnt [i]); |
|
|
1693 | #endif |
|
|
1694 | } |
|
|
1695 | |
|
|
1696 | #if EV_FORK_ENABLE |
|
|
1697 | assert (forkmax >= forkcnt); |
|
|
1698 | array_verify (EV_A_ (W *)forks, forkcnt); |
|
|
1699 | #endif |
|
|
1700 | |
|
|
1701 | #if EV_ASYNC_ENABLE |
|
|
1702 | assert (asyncmax >= asynccnt); |
|
|
1703 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
|
|
1704 | #endif |
|
|
1705 | |
|
|
1706 | assert (preparemax >= preparecnt); |
|
|
1707 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
1708 | |
|
|
1709 | assert (checkmax >= checkcnt); |
|
|
1710 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
1711 | |
|
|
1712 | # if 0 |
|
|
1713 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1714 | for (signum = signalmax; signum--; ) if (signals [signum].gotsig) |
1125 | #endif |
1715 | # endif |
|
|
1716 | #endif |
|
|
1717 | } |
|
|
1718 | |
|
|
1719 | #endif /* multiplicity */ |
1126 | |
1720 | |
1127 | #if EV_MULTIPLICITY |
1721 | #if EV_MULTIPLICITY |
1128 | struct ev_loop * |
1722 | struct ev_loop * |
1129 | ev_default_loop_init (unsigned int flags) |
1723 | ev_default_loop_init (unsigned int flags) |
1130 | #else |
1724 | #else |
1131 | int |
1725 | int |
1132 | ev_default_loop (unsigned int flags) |
1726 | ev_default_loop (unsigned int flags) |
1133 | #endif |
1727 | #endif |
1134 | { |
1728 | { |
1135 | if (sigpipe [0] == sigpipe [1]) |
|
|
1136 | if (pipe (sigpipe)) |
|
|
1137 | return 0; |
|
|
1138 | |
|
|
1139 | if (!ev_default_loop_ptr) |
1729 | if (!ev_default_loop_ptr) |
1140 | { |
1730 | { |
1141 | #if EV_MULTIPLICITY |
1731 | #if EV_MULTIPLICITY |
1142 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1732 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1143 | #else |
1733 | #else |
… | |
… | |
1146 | |
1736 | |
1147 | loop_init (EV_A_ flags); |
1737 | loop_init (EV_A_ flags); |
1148 | |
1738 | |
1149 | if (ev_backend (EV_A)) |
1739 | if (ev_backend (EV_A)) |
1150 | { |
1740 | { |
1151 | siginit (EV_A); |
|
|
1152 | |
|
|
1153 | #ifndef _WIN32 |
1741 | #ifndef _WIN32 |
1154 | ev_signal_init (&childev, childcb, SIGCHLD); |
1742 | ev_signal_init (&childev, childcb, SIGCHLD); |
1155 | ev_set_priority (&childev, EV_MAXPRI); |
1743 | ev_set_priority (&childev, EV_MAXPRI); |
1156 | ev_signal_start (EV_A_ &childev); |
1744 | ev_signal_start (EV_A_ &childev); |
1157 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1745 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
… | |
… | |
1169 | { |
1757 | { |
1170 | #if EV_MULTIPLICITY |
1758 | #if EV_MULTIPLICITY |
1171 | struct ev_loop *loop = ev_default_loop_ptr; |
1759 | struct ev_loop *loop = ev_default_loop_ptr; |
1172 | #endif |
1760 | #endif |
1173 | |
1761 | |
|
|
1762 | ev_default_loop_ptr = 0; |
|
|
1763 | |
1174 | #ifndef _WIN32 |
1764 | #ifndef _WIN32 |
1175 | ev_ref (EV_A); /* child watcher */ |
1765 | ev_ref (EV_A); /* child watcher */ |
1176 | ev_signal_stop (EV_A_ &childev); |
1766 | ev_signal_stop (EV_A_ &childev); |
1177 | #endif |
1767 | #endif |
1178 | |
1768 | |
1179 | ev_ref (EV_A); /* signal watcher */ |
|
|
1180 | ev_io_stop (EV_A_ &sigev); |
|
|
1181 | |
|
|
1182 | close (sigpipe [0]); sigpipe [0] = 0; |
|
|
1183 | close (sigpipe [1]); sigpipe [1] = 0; |
|
|
1184 | |
|
|
1185 | loop_destroy (EV_A); |
1769 | loop_destroy (EV_A); |
1186 | } |
1770 | } |
1187 | |
1771 | |
1188 | void |
1772 | void |
1189 | ev_default_fork (void) |
1773 | ev_default_fork (void) |
1190 | { |
1774 | { |
1191 | #if EV_MULTIPLICITY |
1775 | #if EV_MULTIPLICITY |
1192 | struct ev_loop *loop = ev_default_loop_ptr; |
1776 | struct ev_loop *loop = ev_default_loop_ptr; |
1193 | #endif |
1777 | #endif |
1194 | |
1778 | |
1195 | if (backend) |
1779 | postfork = 1; /* must be in line with ev_loop_fork */ |
1196 | postfork = 1; |
|
|
1197 | } |
1780 | } |
1198 | |
1781 | |
1199 | /*****************************************************************************/ |
1782 | /*****************************************************************************/ |
1200 | |
1783 | |
1201 | void |
1784 | void |
1202 | ev_invoke (EV_P_ void *w, int revents) |
1785 | ev_invoke (EV_P_ void *w, int revents) |
1203 | { |
1786 | { |
1204 | EV_CB_INVOKE ((W)w, revents); |
1787 | EV_CB_INVOKE ((W)w, revents); |
1205 | } |
1788 | } |
1206 | |
1789 | |
1207 | void inline_speed |
1790 | inline_speed void |
1208 | call_pending (EV_P) |
1791 | call_pending (EV_P) |
1209 | { |
1792 | { |
1210 | int pri; |
1793 | int pri; |
1211 | |
1794 | |
1212 | for (pri = NUMPRI; pri--; ) |
1795 | for (pri = NUMPRI; pri--; ) |
1213 | while (pendingcnt [pri]) |
1796 | while (pendingcnt [pri]) |
1214 | { |
1797 | { |
1215 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1798 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1216 | |
1799 | |
1217 | if (expect_true (p->w)) |
|
|
1218 | { |
|
|
1219 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
1800 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
|
|
1801 | /* ^ this is no longer true, as pending_w could be here */ |
1220 | |
1802 | |
1221 | p->w->pending = 0; |
1803 | p->w->pending = 0; |
1222 | EV_CB_INVOKE (p->w, p->events); |
1804 | EV_CB_INVOKE (p->w, p->events); |
1223 | } |
1805 | EV_FREQUENT_CHECK; |
1224 | } |
1806 | } |
1225 | } |
1807 | } |
1226 | |
1808 | |
1227 | void inline_size |
|
|
1228 | timers_reify (EV_P) |
|
|
1229 | { |
|
|
1230 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
|
|
1231 | { |
|
|
1232 | ev_timer *w = (ev_timer *)timers [0]; |
|
|
1233 | |
|
|
1234 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1235 | |
|
|
1236 | /* first reschedule or stop timer */ |
|
|
1237 | if (w->repeat) |
|
|
1238 | { |
|
|
1239 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1240 | |
|
|
1241 | ((WT)w)->at += w->repeat; |
|
|
1242 | if (((WT)w)->at < mn_now) |
|
|
1243 | ((WT)w)->at = mn_now; |
|
|
1244 | |
|
|
1245 | downheap (timers, timercnt, 0); |
|
|
1246 | } |
|
|
1247 | else |
|
|
1248 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1249 | |
|
|
1250 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
|
|
1251 | } |
|
|
1252 | } |
|
|
1253 | |
|
|
1254 | #if EV_PERIODIC_ENABLE |
|
|
1255 | void inline_size |
|
|
1256 | periodics_reify (EV_P) |
|
|
1257 | { |
|
|
1258 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
|
|
1259 | { |
|
|
1260 | ev_periodic *w = (ev_periodic *)periodics [0]; |
|
|
1261 | |
|
|
1262 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
1263 | |
|
|
1264 | /* first reschedule or stop timer */ |
|
|
1265 | if (w->reschedule_cb) |
|
|
1266 | { |
|
|
1267 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); |
|
|
1268 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
|
|
1269 | downheap (periodics, periodiccnt, 0); |
|
|
1270 | } |
|
|
1271 | else if (w->interval) |
|
|
1272 | { |
|
|
1273 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1274 | if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval; |
|
|
1275 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
|
|
1276 | downheap (periodics, periodiccnt, 0); |
|
|
1277 | } |
|
|
1278 | else |
|
|
1279 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1280 | |
|
|
1281 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
|
|
1282 | } |
|
|
1283 | } |
|
|
1284 | |
|
|
1285 | static void noinline |
|
|
1286 | periodics_reschedule (EV_P) |
|
|
1287 | { |
|
|
1288 | int i; |
|
|
1289 | |
|
|
1290 | /* adjust periodics after time jump */ |
|
|
1291 | for (i = 0; i < periodiccnt; ++i) |
|
|
1292 | { |
|
|
1293 | ev_periodic *w = (ev_periodic *)periodics [i]; |
|
|
1294 | |
|
|
1295 | if (w->reschedule_cb) |
|
|
1296 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
|
|
1297 | else if (w->interval) |
|
|
1298 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1299 | } |
|
|
1300 | |
|
|
1301 | /* now rebuild the heap */ |
|
|
1302 | for (i = periodiccnt >> 1; i--; ) |
|
|
1303 | downheap (periodics, periodiccnt, i); |
|
|
1304 | } |
|
|
1305 | #endif |
|
|
1306 | |
|
|
1307 | #if EV_IDLE_ENABLE |
1809 | #if EV_IDLE_ENABLE |
1308 | void inline_size |
1810 | /* make idle watchers pending. this handles the "call-idle */ |
|
|
1811 | /* only when higher priorities are idle" logic */ |
|
|
1812 | inline_size void |
1309 | idle_reify (EV_P) |
1813 | idle_reify (EV_P) |
1310 | { |
1814 | { |
1311 | if (expect_false (idleall)) |
1815 | if (expect_false (idleall)) |
1312 | { |
1816 | { |
1313 | int pri; |
1817 | int pri; |
… | |
… | |
1325 | } |
1829 | } |
1326 | } |
1830 | } |
1327 | } |
1831 | } |
1328 | #endif |
1832 | #endif |
1329 | |
1833 | |
1330 | void inline_speed |
1834 | /* make timers pending */ |
|
|
1835 | inline_size void |
|
|
1836 | timers_reify (EV_P) |
|
|
1837 | { |
|
|
1838 | EV_FREQUENT_CHECK; |
|
|
1839 | |
|
|
1840 | if (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
|
|
1841 | { |
|
|
1842 | do |
|
|
1843 | { |
|
|
1844 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
|
|
1845 | |
|
|
1846 | /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1847 | |
|
|
1848 | /* first reschedule or stop timer */ |
|
|
1849 | if (w->repeat) |
|
|
1850 | { |
|
|
1851 | ev_at (w) += w->repeat; |
|
|
1852 | if (ev_at (w) < mn_now) |
|
|
1853 | ev_at (w) = mn_now; |
|
|
1854 | |
|
|
1855 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1856 | |
|
|
1857 | ANHE_at_cache (timers [HEAP0]); |
|
|
1858 | downheap (timers, timercnt, HEAP0); |
|
|
1859 | } |
|
|
1860 | else |
|
|
1861 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1862 | |
|
|
1863 | EV_FREQUENT_CHECK; |
|
|
1864 | feed_reverse (EV_A_ (W)w); |
|
|
1865 | } |
|
|
1866 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
|
|
1867 | |
|
|
1868 | feed_reverse_done (EV_A_ EV_TIMEOUT); |
|
|
1869 | } |
|
|
1870 | } |
|
|
1871 | |
|
|
1872 | #if EV_PERIODIC_ENABLE |
|
|
1873 | /* make periodics pending */ |
|
|
1874 | inline_size void |
|
|
1875 | periodics_reify (EV_P) |
|
|
1876 | { |
|
|
1877 | EV_FREQUENT_CHECK; |
|
|
1878 | |
|
|
1879 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
|
|
1880 | { |
|
|
1881 | int feed_count = 0; |
|
|
1882 | |
|
|
1883 | do |
|
|
1884 | { |
|
|
1885 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
|
|
1886 | |
|
|
1887 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
1888 | |
|
|
1889 | /* first reschedule or stop timer */ |
|
|
1890 | if (w->reschedule_cb) |
|
|
1891 | { |
|
|
1892 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
1893 | |
|
|
1894 | assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
|
|
1895 | |
|
|
1896 | ANHE_at_cache (periodics [HEAP0]); |
|
|
1897 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1898 | } |
|
|
1899 | else if (w->interval) |
|
|
1900 | { |
|
|
1901 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1902 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
1903 | /* this might happen because of floating point inexactness */ |
|
|
1904 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
1905 | { |
|
|
1906 | ev_at (w) += w->interval; |
|
|
1907 | |
|
|
1908 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
1909 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
1910 | /* has effectively asked to get triggered more often than possible */ |
|
|
1911 | if (ev_at (w) < ev_rt_now) |
|
|
1912 | ev_at (w) = ev_rt_now; |
|
|
1913 | } |
|
|
1914 | |
|
|
1915 | ANHE_at_cache (periodics [HEAP0]); |
|
|
1916 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1917 | } |
|
|
1918 | else |
|
|
1919 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1920 | |
|
|
1921 | EV_FREQUENT_CHECK; |
|
|
1922 | feed_reverse (EV_A_ (W)w); |
|
|
1923 | } |
|
|
1924 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now); |
|
|
1925 | |
|
|
1926 | feed_reverse_done (EV_A_ EV_PERIODIC); |
|
|
1927 | } |
|
|
1928 | } |
|
|
1929 | |
|
|
1930 | /* simply recalculate all periodics */ |
|
|
1931 | /* TODO: maybe ensure that at leats one event happens when jumping forward? */ |
|
|
1932 | static void noinline |
|
|
1933 | periodics_reschedule (EV_P) |
|
|
1934 | { |
|
|
1935 | int i; |
|
|
1936 | |
|
|
1937 | /* adjust periodics after time jump */ |
|
|
1938 | for (i = HEAP0; i < periodiccnt + HEAP0; ++i) |
|
|
1939 | { |
|
|
1940 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
|
|
1941 | |
|
|
1942 | if (w->reschedule_cb) |
|
|
1943 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
1944 | else if (w->interval) |
|
|
1945 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1946 | |
|
|
1947 | ANHE_at_cache (periodics [i]); |
|
|
1948 | } |
|
|
1949 | |
|
|
1950 | reheap (periodics, periodiccnt); |
|
|
1951 | } |
|
|
1952 | #endif |
|
|
1953 | |
|
|
1954 | /* adjust all timers by a given offset */ |
|
|
1955 | static void noinline |
|
|
1956 | timers_reschedule (EV_P_ ev_tstamp adjust) |
|
|
1957 | { |
|
|
1958 | int i; |
|
|
1959 | |
|
|
1960 | for (i = 0; i < timercnt; ++i) |
|
|
1961 | { |
|
|
1962 | ANHE *he = timers + i + HEAP0; |
|
|
1963 | ANHE_w (*he)->at += adjust; |
|
|
1964 | ANHE_at_cache (*he); |
|
|
1965 | } |
|
|
1966 | } |
|
|
1967 | |
|
|
1968 | /* fetch new monotonic and realtime times from the kernel */ |
|
|
1969 | /* also detetc if there was a timejump, and act accordingly */ |
|
|
1970 | inline_speed void |
1331 | time_update (EV_P_ ev_tstamp max_block) |
1971 | time_update (EV_P_ ev_tstamp max_block) |
1332 | { |
1972 | { |
1333 | int i; |
|
|
1334 | |
|
|
1335 | #if EV_USE_MONOTONIC |
1973 | #if EV_USE_MONOTONIC |
1336 | if (expect_true (have_monotonic)) |
1974 | if (expect_true (have_monotonic)) |
1337 | { |
1975 | { |
|
|
1976 | int i; |
1338 | ev_tstamp odiff = rtmn_diff; |
1977 | ev_tstamp odiff = rtmn_diff; |
1339 | |
1978 | |
1340 | mn_now = get_clock (); |
1979 | mn_now = get_clock (); |
1341 | |
1980 | |
1342 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
1981 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
… | |
… | |
1360 | */ |
1999 | */ |
1361 | for (i = 4; --i; ) |
2000 | for (i = 4; --i; ) |
1362 | { |
2001 | { |
1363 | rtmn_diff = ev_rt_now - mn_now; |
2002 | rtmn_diff = ev_rt_now - mn_now; |
1364 | |
2003 | |
1365 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
2004 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
1366 | return; /* all is well */ |
2005 | return; /* all is well */ |
1367 | |
2006 | |
1368 | ev_rt_now = ev_time (); |
2007 | ev_rt_now = ev_time (); |
1369 | mn_now = get_clock (); |
2008 | mn_now = get_clock (); |
1370 | now_floor = mn_now; |
2009 | now_floor = mn_now; |
1371 | } |
2010 | } |
1372 | |
2011 | |
|
|
2012 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
2013 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1373 | # if EV_PERIODIC_ENABLE |
2014 | # if EV_PERIODIC_ENABLE |
1374 | periodics_reschedule (EV_A); |
2015 | periodics_reschedule (EV_A); |
1375 | # endif |
2016 | # endif |
1376 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1377 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1378 | } |
2017 | } |
1379 | else |
2018 | else |
1380 | #endif |
2019 | #endif |
1381 | { |
2020 | { |
1382 | ev_rt_now = ev_time (); |
2021 | ev_rt_now = ev_time (); |
1383 | |
2022 | |
1384 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
2023 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
1385 | { |
2024 | { |
|
|
2025 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
2026 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
1386 | #if EV_PERIODIC_ENABLE |
2027 | #if EV_PERIODIC_ENABLE |
1387 | periodics_reschedule (EV_A); |
2028 | periodics_reschedule (EV_A); |
1388 | #endif |
2029 | #endif |
1389 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1390 | for (i = 0; i < timercnt; ++i) |
|
|
1391 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
|
|
1392 | } |
2030 | } |
1393 | |
2031 | |
1394 | mn_now = ev_rt_now; |
2032 | mn_now = ev_rt_now; |
1395 | } |
2033 | } |
1396 | } |
2034 | } |
1397 | |
2035 | |
1398 | void |
2036 | void |
1399 | ev_ref (EV_P) |
|
|
1400 | { |
|
|
1401 | ++activecnt; |
|
|
1402 | } |
|
|
1403 | |
|
|
1404 | void |
|
|
1405 | ev_unref (EV_P) |
|
|
1406 | { |
|
|
1407 | --activecnt; |
|
|
1408 | } |
|
|
1409 | |
|
|
1410 | static int loop_done; |
|
|
1411 | |
|
|
1412 | void |
|
|
1413 | ev_loop (EV_P_ int flags) |
2037 | ev_loop (EV_P_ int flags) |
1414 | { |
2038 | { |
1415 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) |
2039 | ++loop_depth; |
1416 | ? EVUNLOOP_ONE |
2040 | |
1417 | : EVUNLOOP_CANCEL; |
2041 | loop_done = EVUNLOOP_CANCEL; |
1418 | |
2042 | |
1419 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
2043 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
1420 | |
2044 | |
1421 | do |
2045 | do |
1422 | { |
2046 | { |
|
|
2047 | #if EV_VERIFY >= 2 |
|
|
2048 | ev_loop_verify (EV_A); |
|
|
2049 | #endif |
|
|
2050 | |
1423 | #ifndef _WIN32 |
2051 | #ifndef _WIN32 |
1424 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2052 | if (expect_false (curpid)) /* penalise the forking check even more */ |
1425 | if (expect_false (getpid () != curpid)) |
2053 | if (expect_false (getpid () != curpid)) |
1426 | { |
2054 | { |
1427 | curpid = getpid (); |
2055 | curpid = getpid (); |
… | |
… | |
1444 | { |
2072 | { |
1445 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2073 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1446 | call_pending (EV_A); |
2074 | call_pending (EV_A); |
1447 | } |
2075 | } |
1448 | |
2076 | |
1449 | if (expect_false (!activecnt)) |
|
|
1450 | break; |
|
|
1451 | |
|
|
1452 | /* we might have forked, so reify kernel state if necessary */ |
2077 | /* we might have forked, so reify kernel state if necessary */ |
1453 | if (expect_false (postfork)) |
2078 | if (expect_false (postfork)) |
1454 | loop_fork (EV_A); |
2079 | loop_fork (EV_A); |
1455 | |
2080 | |
1456 | /* update fd-related kernel structures */ |
2081 | /* update fd-related kernel structures */ |
1457 | fd_reify (EV_A); |
2082 | fd_reify (EV_A); |
1458 | |
2083 | |
1459 | /* calculate blocking time */ |
2084 | /* calculate blocking time */ |
1460 | { |
2085 | { |
1461 | ev_tstamp block; |
2086 | ev_tstamp waittime = 0.; |
|
|
2087 | ev_tstamp sleeptime = 0.; |
1462 | |
2088 | |
1463 | if (expect_false (flags & EVLOOP_NONBLOCK || idleall || !activecnt)) |
2089 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
1464 | block = 0.; /* do not block at all */ |
|
|
1465 | else |
|
|
1466 | { |
2090 | { |
|
|
2091 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2092 | ev_tstamp prev_mn_now = mn_now; |
|
|
2093 | |
1467 | /* update time to cancel out callback processing overhead */ |
2094 | /* update time to cancel out callback processing overhead */ |
1468 | time_update (EV_A_ 1e100); |
2095 | time_update (EV_A_ 1e100); |
1469 | |
2096 | |
1470 | block = MAX_BLOCKTIME; |
2097 | waittime = MAX_BLOCKTIME; |
1471 | |
2098 | |
1472 | if (timercnt) |
2099 | if (timercnt) |
1473 | { |
2100 | { |
1474 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
2101 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
1475 | if (block > to) block = to; |
2102 | if (waittime > to) waittime = to; |
1476 | } |
2103 | } |
1477 | |
2104 | |
1478 | #if EV_PERIODIC_ENABLE |
2105 | #if EV_PERIODIC_ENABLE |
1479 | if (periodiccnt) |
2106 | if (periodiccnt) |
1480 | { |
2107 | { |
1481 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
2108 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
1482 | if (block > to) block = to; |
2109 | if (waittime > to) waittime = to; |
1483 | } |
2110 | } |
1484 | #endif |
2111 | #endif |
1485 | |
2112 | |
|
|
2113 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
|
|
2114 | if (expect_false (waittime < timeout_blocktime)) |
|
|
2115 | waittime = timeout_blocktime; |
|
|
2116 | |
|
|
2117 | /* extra check because io_blocktime is commonly 0 */ |
1486 | if (expect_false (block < 0.)) block = 0.; |
2118 | if (expect_false (io_blocktime)) |
|
|
2119 | { |
|
|
2120 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
|
|
2121 | |
|
|
2122 | if (sleeptime > waittime - backend_fudge) |
|
|
2123 | sleeptime = waittime - backend_fudge; |
|
|
2124 | |
|
|
2125 | if (expect_true (sleeptime > 0.)) |
|
|
2126 | { |
|
|
2127 | ev_sleep (sleeptime); |
|
|
2128 | waittime -= sleeptime; |
|
|
2129 | } |
|
|
2130 | } |
1487 | } |
2131 | } |
1488 | |
2132 | |
1489 | ++loop_count; |
2133 | ++loop_count; |
1490 | backend_poll (EV_A_ block); |
2134 | backend_poll (EV_A_ waittime); |
1491 | |
2135 | |
1492 | /* update ev_rt_now, do magic */ |
2136 | /* update ev_rt_now, do magic */ |
1493 | time_update (EV_A_ block); |
2137 | time_update (EV_A_ waittime + sleeptime); |
1494 | } |
2138 | } |
1495 | |
2139 | |
1496 | /* queue pending timers and reschedule them */ |
2140 | /* queue pending timers and reschedule them */ |
1497 | timers_reify (EV_A); /* relative timers called last */ |
2141 | timers_reify (EV_A); /* relative timers called last */ |
1498 | #if EV_PERIODIC_ENABLE |
2142 | #if EV_PERIODIC_ENABLE |
… | |
… | |
1507 | /* queue check watchers, to be executed first */ |
2151 | /* queue check watchers, to be executed first */ |
1508 | if (expect_false (checkcnt)) |
2152 | if (expect_false (checkcnt)) |
1509 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2153 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1510 | |
2154 | |
1511 | call_pending (EV_A); |
2155 | call_pending (EV_A); |
1512 | |
|
|
1513 | } |
2156 | } |
1514 | while (expect_true (activecnt && !loop_done)); |
2157 | while (expect_true ( |
|
|
2158 | activecnt |
|
|
2159 | && !loop_done |
|
|
2160 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
|
|
2161 | )); |
1515 | |
2162 | |
1516 | if (loop_done == EVUNLOOP_ONE) |
2163 | if (loop_done == EVUNLOOP_ONE) |
1517 | loop_done = EVUNLOOP_CANCEL; |
2164 | loop_done = EVUNLOOP_CANCEL; |
|
|
2165 | |
|
|
2166 | --loop_depth; |
1518 | } |
2167 | } |
1519 | |
2168 | |
1520 | void |
2169 | void |
1521 | ev_unloop (EV_P_ int how) |
2170 | ev_unloop (EV_P_ int how) |
1522 | { |
2171 | { |
1523 | loop_done = how; |
2172 | loop_done = how; |
1524 | } |
2173 | } |
1525 | |
2174 | |
|
|
2175 | void |
|
|
2176 | ev_ref (EV_P) |
|
|
2177 | { |
|
|
2178 | ++activecnt; |
|
|
2179 | } |
|
|
2180 | |
|
|
2181 | void |
|
|
2182 | ev_unref (EV_P) |
|
|
2183 | { |
|
|
2184 | --activecnt; |
|
|
2185 | } |
|
|
2186 | |
|
|
2187 | void |
|
|
2188 | ev_now_update (EV_P) |
|
|
2189 | { |
|
|
2190 | time_update (EV_A_ 1e100); |
|
|
2191 | } |
|
|
2192 | |
|
|
2193 | void |
|
|
2194 | ev_suspend (EV_P) |
|
|
2195 | { |
|
|
2196 | ev_now_update (EV_A); |
|
|
2197 | } |
|
|
2198 | |
|
|
2199 | void |
|
|
2200 | ev_resume (EV_P) |
|
|
2201 | { |
|
|
2202 | ev_tstamp mn_prev = mn_now; |
|
|
2203 | |
|
|
2204 | ev_now_update (EV_A); |
|
|
2205 | timers_reschedule (EV_A_ mn_now - mn_prev); |
|
|
2206 | #if EV_PERIODIC_ENABLE |
|
|
2207 | /* TODO: really do this? */ |
|
|
2208 | periodics_reschedule (EV_A); |
|
|
2209 | #endif |
|
|
2210 | } |
|
|
2211 | |
1526 | /*****************************************************************************/ |
2212 | /*****************************************************************************/ |
|
|
2213 | /* singly-linked list management, used when the expected list length is short */ |
1527 | |
2214 | |
1528 | void inline_size |
2215 | inline_size void |
1529 | wlist_add (WL *head, WL elem) |
2216 | wlist_add (WL *head, WL elem) |
1530 | { |
2217 | { |
1531 | elem->next = *head; |
2218 | elem->next = *head; |
1532 | *head = elem; |
2219 | *head = elem; |
1533 | } |
2220 | } |
1534 | |
2221 | |
1535 | void inline_size |
2222 | inline_size void |
1536 | wlist_del (WL *head, WL elem) |
2223 | wlist_del (WL *head, WL elem) |
1537 | { |
2224 | { |
1538 | while (*head) |
2225 | while (*head) |
1539 | { |
2226 | { |
1540 | if (*head == elem) |
2227 | if (*head == elem) |
… | |
… | |
1545 | |
2232 | |
1546 | head = &(*head)->next; |
2233 | head = &(*head)->next; |
1547 | } |
2234 | } |
1548 | } |
2235 | } |
1549 | |
2236 | |
1550 | void inline_speed |
2237 | /* internal, faster, version of ev_clear_pending */ |
|
|
2238 | inline_speed void |
1551 | clear_pending (EV_P_ W w) |
2239 | clear_pending (EV_P_ W w) |
1552 | { |
2240 | { |
1553 | if (w->pending) |
2241 | if (w->pending) |
1554 | { |
2242 | { |
1555 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
2243 | pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w; |
1556 | w->pending = 0; |
2244 | w->pending = 0; |
1557 | } |
2245 | } |
1558 | } |
2246 | } |
1559 | |
2247 | |
1560 | int |
2248 | int |
… | |
… | |
1564 | int pending = w_->pending; |
2252 | int pending = w_->pending; |
1565 | |
2253 | |
1566 | if (expect_true (pending)) |
2254 | if (expect_true (pending)) |
1567 | { |
2255 | { |
1568 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
2256 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
2257 | p->w = (W)&pending_w; |
1569 | w_->pending = 0; |
2258 | w_->pending = 0; |
1570 | p->w = 0; |
|
|
1571 | return p->events; |
2259 | return p->events; |
1572 | } |
2260 | } |
1573 | else |
2261 | else |
1574 | return 0; |
2262 | return 0; |
1575 | } |
2263 | } |
1576 | |
2264 | |
1577 | void inline_size |
2265 | inline_size void |
1578 | pri_adjust (EV_P_ W w) |
2266 | pri_adjust (EV_P_ W w) |
1579 | { |
2267 | { |
1580 | int pri = w->priority; |
2268 | int pri = ev_priority (w); |
1581 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2269 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
1582 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2270 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
1583 | w->priority = pri; |
2271 | ev_set_priority (w, pri); |
1584 | } |
2272 | } |
1585 | |
2273 | |
1586 | void inline_speed |
2274 | inline_speed void |
1587 | ev_start (EV_P_ W w, int active) |
2275 | ev_start (EV_P_ W w, int active) |
1588 | { |
2276 | { |
1589 | pri_adjust (EV_A_ w); |
2277 | pri_adjust (EV_A_ w); |
1590 | w->active = active; |
2278 | w->active = active; |
1591 | ev_ref (EV_A); |
2279 | ev_ref (EV_A); |
1592 | } |
2280 | } |
1593 | |
2281 | |
1594 | void inline_size |
2282 | inline_size void |
1595 | ev_stop (EV_P_ W w) |
2283 | ev_stop (EV_P_ W w) |
1596 | { |
2284 | { |
1597 | ev_unref (EV_A); |
2285 | ev_unref (EV_A); |
1598 | w->active = 0; |
2286 | w->active = 0; |
1599 | } |
2287 | } |
… | |
… | |
1606 | int fd = w->fd; |
2294 | int fd = w->fd; |
1607 | |
2295 | |
1608 | if (expect_false (ev_is_active (w))) |
2296 | if (expect_false (ev_is_active (w))) |
1609 | return; |
2297 | return; |
1610 | |
2298 | |
1611 | assert (("ev_io_start called with negative fd", fd >= 0)); |
2299 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
|
|
2300 | assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
|
|
2301 | |
|
|
2302 | EV_FREQUENT_CHECK; |
1612 | |
2303 | |
1613 | ev_start (EV_A_ (W)w, 1); |
2304 | ev_start (EV_A_ (W)w, 1); |
1614 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
2305 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
1615 | wlist_add (&anfds[fd].head, (WL)w); |
2306 | wlist_add (&anfds[fd].head, (WL)w); |
1616 | |
2307 | |
1617 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
2308 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | 1); |
1618 | w->events &= ~EV_IOFDSET; |
2309 | w->events &= ~EV__IOFDSET; |
|
|
2310 | |
|
|
2311 | EV_FREQUENT_CHECK; |
1619 | } |
2312 | } |
1620 | |
2313 | |
1621 | void noinline |
2314 | void noinline |
1622 | ev_io_stop (EV_P_ ev_io *w) |
2315 | ev_io_stop (EV_P_ ev_io *w) |
1623 | { |
2316 | { |
1624 | clear_pending (EV_A_ (W)w); |
2317 | clear_pending (EV_A_ (W)w); |
1625 | if (expect_false (!ev_is_active (w))) |
2318 | if (expect_false (!ev_is_active (w))) |
1626 | return; |
2319 | return; |
1627 | |
2320 | |
1628 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2321 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
|
|
2322 | |
|
|
2323 | EV_FREQUENT_CHECK; |
1629 | |
2324 | |
1630 | wlist_del (&anfds[w->fd].head, (WL)w); |
2325 | wlist_del (&anfds[w->fd].head, (WL)w); |
1631 | ev_stop (EV_A_ (W)w); |
2326 | ev_stop (EV_A_ (W)w); |
1632 | |
2327 | |
1633 | fd_change (EV_A_ w->fd, 1); |
2328 | fd_change (EV_A_ w->fd, 1); |
|
|
2329 | |
|
|
2330 | EV_FREQUENT_CHECK; |
1634 | } |
2331 | } |
1635 | |
2332 | |
1636 | void noinline |
2333 | void noinline |
1637 | ev_timer_start (EV_P_ ev_timer *w) |
2334 | ev_timer_start (EV_P_ ev_timer *w) |
1638 | { |
2335 | { |
1639 | if (expect_false (ev_is_active (w))) |
2336 | if (expect_false (ev_is_active (w))) |
1640 | return; |
2337 | return; |
1641 | |
2338 | |
1642 | ((WT)w)->at += mn_now; |
2339 | ev_at (w) += mn_now; |
1643 | |
2340 | |
1644 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2341 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1645 | |
2342 | |
|
|
2343 | EV_FREQUENT_CHECK; |
|
|
2344 | |
|
|
2345 | ++timercnt; |
1646 | ev_start (EV_A_ (W)w, ++timercnt); |
2346 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
1647 | array_needsize (WT, timers, timermax, timercnt, EMPTY2); |
2347 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
1648 | timers [timercnt - 1] = (WT)w; |
2348 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
1649 | upheap (timers, timercnt - 1); |
2349 | ANHE_at_cache (timers [ev_active (w)]); |
|
|
2350 | upheap (timers, ev_active (w)); |
1650 | |
2351 | |
|
|
2352 | EV_FREQUENT_CHECK; |
|
|
2353 | |
1651 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
2354 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
1652 | } |
2355 | } |
1653 | |
2356 | |
1654 | void noinline |
2357 | void noinline |
1655 | ev_timer_stop (EV_P_ ev_timer *w) |
2358 | ev_timer_stop (EV_P_ ev_timer *w) |
1656 | { |
2359 | { |
1657 | clear_pending (EV_A_ (W)w); |
2360 | clear_pending (EV_A_ (W)w); |
1658 | if (expect_false (!ev_is_active (w))) |
2361 | if (expect_false (!ev_is_active (w))) |
1659 | return; |
2362 | return; |
1660 | |
2363 | |
1661 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w)); |
2364 | EV_FREQUENT_CHECK; |
1662 | |
2365 | |
1663 | { |
2366 | { |
1664 | int active = ((W)w)->active; |
2367 | int active = ev_active (w); |
1665 | |
2368 | |
|
|
2369 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
|
|
2370 | |
|
|
2371 | --timercnt; |
|
|
2372 | |
1666 | if (expect_true (--active < --timercnt)) |
2373 | if (expect_true (active < timercnt + HEAP0)) |
1667 | { |
2374 | { |
1668 | timers [active] = timers [timercnt]; |
2375 | timers [active] = timers [timercnt + HEAP0]; |
1669 | adjustheap (timers, timercnt, active); |
2376 | adjustheap (timers, timercnt, active); |
1670 | } |
2377 | } |
1671 | } |
2378 | } |
1672 | |
2379 | |
1673 | ((WT)w)->at -= mn_now; |
2380 | EV_FREQUENT_CHECK; |
|
|
2381 | |
|
|
2382 | ev_at (w) -= mn_now; |
1674 | |
2383 | |
1675 | ev_stop (EV_A_ (W)w); |
2384 | ev_stop (EV_A_ (W)w); |
1676 | } |
2385 | } |
1677 | |
2386 | |
1678 | void noinline |
2387 | void noinline |
1679 | ev_timer_again (EV_P_ ev_timer *w) |
2388 | ev_timer_again (EV_P_ ev_timer *w) |
1680 | { |
2389 | { |
|
|
2390 | EV_FREQUENT_CHECK; |
|
|
2391 | |
1681 | if (ev_is_active (w)) |
2392 | if (ev_is_active (w)) |
1682 | { |
2393 | { |
1683 | if (w->repeat) |
2394 | if (w->repeat) |
1684 | { |
2395 | { |
1685 | ((WT)w)->at = mn_now + w->repeat; |
2396 | ev_at (w) = mn_now + w->repeat; |
|
|
2397 | ANHE_at_cache (timers [ev_active (w)]); |
1686 | adjustheap (timers, timercnt, ((W)w)->active - 1); |
2398 | adjustheap (timers, timercnt, ev_active (w)); |
1687 | } |
2399 | } |
1688 | else |
2400 | else |
1689 | ev_timer_stop (EV_A_ w); |
2401 | ev_timer_stop (EV_A_ w); |
1690 | } |
2402 | } |
1691 | else if (w->repeat) |
2403 | else if (w->repeat) |
1692 | { |
2404 | { |
1693 | w->at = w->repeat; |
2405 | ev_at (w) = w->repeat; |
1694 | ev_timer_start (EV_A_ w); |
2406 | ev_timer_start (EV_A_ w); |
1695 | } |
2407 | } |
|
|
2408 | |
|
|
2409 | EV_FREQUENT_CHECK; |
1696 | } |
2410 | } |
1697 | |
2411 | |
1698 | #if EV_PERIODIC_ENABLE |
2412 | #if EV_PERIODIC_ENABLE |
1699 | void noinline |
2413 | void noinline |
1700 | ev_periodic_start (EV_P_ ev_periodic *w) |
2414 | ev_periodic_start (EV_P_ ev_periodic *w) |
1701 | { |
2415 | { |
1702 | if (expect_false (ev_is_active (w))) |
2416 | if (expect_false (ev_is_active (w))) |
1703 | return; |
2417 | return; |
1704 | |
2418 | |
1705 | if (w->reschedule_cb) |
2419 | if (w->reschedule_cb) |
1706 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
2420 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1707 | else if (w->interval) |
2421 | else if (w->interval) |
1708 | { |
2422 | { |
1709 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2423 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1710 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2424 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1711 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2425 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1712 | } |
2426 | } |
1713 | else |
2427 | else |
1714 | ((WT)w)->at = w->offset; |
2428 | ev_at (w) = w->offset; |
1715 | |
2429 | |
|
|
2430 | EV_FREQUENT_CHECK; |
|
|
2431 | |
|
|
2432 | ++periodiccnt; |
1716 | ev_start (EV_A_ (W)w, ++periodiccnt); |
2433 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
1717 | array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2); |
2434 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
1718 | periodics [periodiccnt - 1] = (WT)w; |
2435 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
1719 | upheap (periodics, periodiccnt - 1); |
2436 | ANHE_at_cache (periodics [ev_active (w)]); |
|
|
2437 | upheap (periodics, ev_active (w)); |
1720 | |
2438 | |
|
|
2439 | EV_FREQUENT_CHECK; |
|
|
2440 | |
1721 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
2441 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
1722 | } |
2442 | } |
1723 | |
2443 | |
1724 | void noinline |
2444 | void noinline |
1725 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2445 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1726 | { |
2446 | { |
1727 | clear_pending (EV_A_ (W)w); |
2447 | clear_pending (EV_A_ (W)w); |
1728 | if (expect_false (!ev_is_active (w))) |
2448 | if (expect_false (!ev_is_active (w))) |
1729 | return; |
2449 | return; |
1730 | |
2450 | |
1731 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w)); |
2451 | EV_FREQUENT_CHECK; |
1732 | |
2452 | |
1733 | { |
2453 | { |
1734 | int active = ((W)w)->active; |
2454 | int active = ev_active (w); |
1735 | |
2455 | |
|
|
2456 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
|
|
2457 | |
|
|
2458 | --periodiccnt; |
|
|
2459 | |
1736 | if (expect_true (--active < --periodiccnt)) |
2460 | if (expect_true (active < periodiccnt + HEAP0)) |
1737 | { |
2461 | { |
1738 | periodics [active] = periodics [periodiccnt]; |
2462 | periodics [active] = periodics [periodiccnt + HEAP0]; |
1739 | adjustheap (periodics, periodiccnt, active); |
2463 | adjustheap (periodics, periodiccnt, active); |
1740 | } |
2464 | } |
1741 | } |
2465 | } |
1742 | |
2466 | |
|
|
2467 | EV_FREQUENT_CHECK; |
|
|
2468 | |
1743 | ev_stop (EV_A_ (W)w); |
2469 | ev_stop (EV_A_ (W)w); |
1744 | } |
2470 | } |
1745 | |
2471 | |
1746 | void noinline |
2472 | void noinline |
1747 | ev_periodic_again (EV_P_ ev_periodic *w) |
2473 | ev_periodic_again (EV_P_ ev_periodic *w) |
… | |
… | |
1758 | |
2484 | |
1759 | void noinline |
2485 | void noinline |
1760 | ev_signal_start (EV_P_ ev_signal *w) |
2486 | ev_signal_start (EV_P_ ev_signal *w) |
1761 | { |
2487 | { |
1762 | #if EV_MULTIPLICITY |
2488 | #if EV_MULTIPLICITY |
1763 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2489 | assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1764 | #endif |
2490 | #endif |
1765 | if (expect_false (ev_is_active (w))) |
2491 | if (expect_false (ev_is_active (w))) |
1766 | return; |
2492 | return; |
1767 | |
2493 | |
1768 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2494 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); |
|
|
2495 | |
|
|
2496 | evpipe_init (EV_A); |
|
|
2497 | |
|
|
2498 | EV_FREQUENT_CHECK; |
1769 | |
2499 | |
1770 | { |
2500 | { |
1771 | #ifndef _WIN32 |
2501 | #ifndef _WIN32 |
1772 | sigset_t full, prev; |
2502 | sigset_t full, prev; |
1773 | sigfillset (&full); |
2503 | sigfillset (&full); |
1774 | sigprocmask (SIG_SETMASK, &full, &prev); |
2504 | sigprocmask (SIG_SETMASK, &full, &prev); |
1775 | #endif |
2505 | #endif |
1776 | |
2506 | |
1777 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
2507 | array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); |
1778 | |
2508 | |
1779 | #ifndef _WIN32 |
2509 | #ifndef _WIN32 |
1780 | sigprocmask (SIG_SETMASK, &prev, 0); |
2510 | sigprocmask (SIG_SETMASK, &prev, 0); |
1781 | #endif |
2511 | #endif |
1782 | } |
2512 | } |
… | |
… | |
1785 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2515 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
1786 | |
2516 | |
1787 | if (!((WL)w)->next) |
2517 | if (!((WL)w)->next) |
1788 | { |
2518 | { |
1789 | #if _WIN32 |
2519 | #if _WIN32 |
1790 | signal (w->signum, sighandler); |
2520 | signal (w->signum, ev_sighandler); |
1791 | #else |
2521 | #else |
1792 | struct sigaction sa; |
2522 | struct sigaction sa; |
1793 | sa.sa_handler = sighandler; |
2523 | sa.sa_handler = ev_sighandler; |
1794 | sigfillset (&sa.sa_mask); |
2524 | sigfillset (&sa.sa_mask); |
1795 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2525 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1796 | sigaction (w->signum, &sa, 0); |
2526 | sigaction (w->signum, &sa, 0); |
1797 | #endif |
2527 | #endif |
1798 | } |
2528 | } |
|
|
2529 | |
|
|
2530 | EV_FREQUENT_CHECK; |
1799 | } |
2531 | } |
1800 | |
2532 | |
1801 | void noinline |
2533 | void noinline |
1802 | ev_signal_stop (EV_P_ ev_signal *w) |
2534 | ev_signal_stop (EV_P_ ev_signal *w) |
1803 | { |
2535 | { |
1804 | clear_pending (EV_A_ (W)w); |
2536 | clear_pending (EV_A_ (W)w); |
1805 | if (expect_false (!ev_is_active (w))) |
2537 | if (expect_false (!ev_is_active (w))) |
1806 | return; |
2538 | return; |
1807 | |
2539 | |
|
|
2540 | EV_FREQUENT_CHECK; |
|
|
2541 | |
1808 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2542 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
1809 | ev_stop (EV_A_ (W)w); |
2543 | ev_stop (EV_A_ (W)w); |
1810 | |
2544 | |
1811 | if (!signals [w->signum - 1].head) |
2545 | if (!signals [w->signum - 1].head) |
1812 | signal (w->signum, SIG_DFL); |
2546 | signal (w->signum, SIG_DFL); |
|
|
2547 | |
|
|
2548 | EV_FREQUENT_CHECK; |
1813 | } |
2549 | } |
1814 | |
2550 | |
1815 | void |
2551 | void |
1816 | ev_child_start (EV_P_ ev_child *w) |
2552 | ev_child_start (EV_P_ ev_child *w) |
1817 | { |
2553 | { |
1818 | #if EV_MULTIPLICITY |
2554 | #if EV_MULTIPLICITY |
1819 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2555 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1820 | #endif |
2556 | #endif |
1821 | if (expect_false (ev_is_active (w))) |
2557 | if (expect_false (ev_is_active (w))) |
1822 | return; |
2558 | return; |
1823 | |
2559 | |
|
|
2560 | EV_FREQUENT_CHECK; |
|
|
2561 | |
1824 | ev_start (EV_A_ (W)w, 1); |
2562 | ev_start (EV_A_ (W)w, 1); |
1825 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2563 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
|
|
2564 | |
|
|
2565 | EV_FREQUENT_CHECK; |
1826 | } |
2566 | } |
1827 | |
2567 | |
1828 | void |
2568 | void |
1829 | ev_child_stop (EV_P_ ev_child *w) |
2569 | ev_child_stop (EV_P_ ev_child *w) |
1830 | { |
2570 | { |
1831 | clear_pending (EV_A_ (W)w); |
2571 | clear_pending (EV_A_ (W)w); |
1832 | if (expect_false (!ev_is_active (w))) |
2572 | if (expect_false (!ev_is_active (w))) |
1833 | return; |
2573 | return; |
1834 | |
2574 | |
|
|
2575 | EV_FREQUENT_CHECK; |
|
|
2576 | |
1835 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2577 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1836 | ev_stop (EV_A_ (W)w); |
2578 | ev_stop (EV_A_ (W)w); |
|
|
2579 | |
|
|
2580 | EV_FREQUENT_CHECK; |
1837 | } |
2581 | } |
1838 | |
2582 | |
1839 | #if EV_STAT_ENABLE |
2583 | #if EV_STAT_ENABLE |
1840 | |
2584 | |
1841 | # ifdef _WIN32 |
2585 | # ifdef _WIN32 |
1842 | # undef lstat |
2586 | # undef lstat |
1843 | # define lstat(a,b) _stati64 (a,b) |
2587 | # define lstat(a,b) _stati64 (a,b) |
1844 | # endif |
2588 | # endif |
1845 | |
2589 | |
1846 | #define DEF_STAT_INTERVAL 5.0074891 |
2590 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
2591 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
1847 | #define MIN_STAT_INTERVAL 0.1074891 |
2592 | #define MIN_STAT_INTERVAL 0.1074891 |
1848 | |
2593 | |
1849 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2594 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
1850 | |
2595 | |
1851 | #if EV_USE_INOTIFY |
2596 | #if EV_USE_INOTIFY |
1852 | # define EV_INOTIFY_BUFSIZE 8192 |
2597 | # define EV_INOTIFY_BUFSIZE 8192 |
… | |
… | |
1856 | { |
2601 | { |
1857 | 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); |
2602 | 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); |
1858 | |
2603 | |
1859 | if (w->wd < 0) |
2604 | if (w->wd < 0) |
1860 | { |
2605 | { |
|
|
2606 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
1861 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2607 | ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
1862 | |
2608 | |
1863 | /* monitor some parent directory for speedup hints */ |
2609 | /* monitor some parent directory for speedup hints */ |
|
|
2610 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
|
|
2611 | /* but an efficiency issue only */ |
1864 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2612 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
1865 | { |
2613 | { |
1866 | char path [4096]; |
2614 | char path [4096]; |
1867 | strcpy (path, w->path); |
2615 | strcpy (path, w->path); |
1868 | |
2616 | |
… | |
… | |
1871 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2619 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
1872 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2620 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
1873 | |
2621 | |
1874 | char *pend = strrchr (path, '/'); |
2622 | char *pend = strrchr (path, '/'); |
1875 | |
2623 | |
1876 | if (!pend) |
2624 | if (!pend || pend == path) |
1877 | break; /* whoops, no '/', complain to your admin */ |
2625 | break; |
1878 | |
2626 | |
1879 | *pend = 0; |
2627 | *pend = 0; |
1880 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2628 | w->wd = inotify_add_watch (fs_fd, path, mask); |
1881 | } |
2629 | } |
1882 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2630 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
1883 | } |
2631 | } |
1884 | } |
2632 | } |
1885 | else |
|
|
1886 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
1887 | |
2633 | |
1888 | if (w->wd >= 0) |
2634 | if (w->wd >= 0) |
|
|
2635 | { |
1889 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2636 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
2637 | |
|
|
2638 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
2639 | /* unless the filesystem it known to be local, we therefore still poll */ |
|
|
2640 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2641 | struct statfs sfs; |
|
|
2642 | |
|
|
2643 | if (fs_2625 && !statfs (w->path, &sfs)) |
|
|
2644 | if (sfs.f_type == 0x1373 /* devfs */ |
|
|
2645 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2646 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2647 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2648 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2649 | || sfs.f_type == 0x58465342 /* xfs */) |
|
|
2650 | return; |
|
|
2651 | |
|
|
2652 | w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2653 | ev_timer_again (EV_A_ &w->timer); |
|
|
2654 | } |
1890 | } |
2655 | } |
1891 | |
2656 | |
1892 | static void noinline |
2657 | static void noinline |
1893 | infy_del (EV_P_ ev_stat *w) |
2658 | infy_del (EV_P_ ev_stat *w) |
1894 | { |
2659 | { |
… | |
… | |
1908 | |
2673 | |
1909 | static void noinline |
2674 | static void noinline |
1910 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2675 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
1911 | { |
2676 | { |
1912 | if (slot < 0) |
2677 | if (slot < 0) |
1913 | /* overflow, need to check for all hahs slots */ |
2678 | /* overflow, need to check for all hash slots */ |
1914 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2679 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
1915 | infy_wd (EV_A_ slot, wd, ev); |
2680 | infy_wd (EV_A_ slot, wd, ev); |
1916 | else |
2681 | else |
1917 | { |
2682 | { |
1918 | WL w_; |
2683 | WL w_; |
… | |
… | |
1924 | |
2689 | |
1925 | if (w->wd == wd || wd == -1) |
2690 | if (w->wd == wd || wd == -1) |
1926 | { |
2691 | { |
1927 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2692 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
1928 | { |
2693 | { |
|
|
2694 | wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
1929 | w->wd = -1; |
2695 | w->wd = -1; |
1930 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2696 | infy_add (EV_A_ w); /* re-add, no matter what */ |
1931 | } |
2697 | } |
1932 | |
2698 | |
1933 | stat_timer_cb (EV_A_ &w->timer, 0); |
2699 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
1946 | |
2712 | |
1947 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
2713 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
1948 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
2714 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
1949 | } |
2715 | } |
1950 | |
2716 | |
1951 | void inline_size |
2717 | inline_size void |
|
|
2718 | check_2625 (EV_P) |
|
|
2719 | { |
|
|
2720 | /* kernels < 2.6.25 are borked |
|
|
2721 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
|
|
2722 | */ |
|
|
2723 | struct utsname buf; |
|
|
2724 | int major, minor, micro; |
|
|
2725 | |
|
|
2726 | if (uname (&buf)) |
|
|
2727 | return; |
|
|
2728 | |
|
|
2729 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
|
|
2730 | return; |
|
|
2731 | |
|
|
2732 | if (major < 2 |
|
|
2733 | || (major == 2 && minor < 6) |
|
|
2734 | || (major == 2 && minor == 6 && micro < 25)) |
|
|
2735 | return; |
|
|
2736 | |
|
|
2737 | fs_2625 = 1; |
|
|
2738 | } |
|
|
2739 | |
|
|
2740 | inline_size void |
1952 | infy_init (EV_P) |
2741 | infy_init (EV_P) |
1953 | { |
2742 | { |
1954 | if (fs_fd != -2) |
2743 | if (fs_fd != -2) |
1955 | return; |
2744 | return; |
|
|
2745 | |
|
|
2746 | fs_fd = -1; |
|
|
2747 | |
|
|
2748 | check_2625 (EV_A); |
1956 | |
2749 | |
1957 | fs_fd = inotify_init (); |
2750 | fs_fd = inotify_init (); |
1958 | |
2751 | |
1959 | if (fs_fd >= 0) |
2752 | if (fs_fd >= 0) |
1960 | { |
2753 | { |
… | |
… | |
1962 | ev_set_priority (&fs_w, EV_MAXPRI); |
2755 | ev_set_priority (&fs_w, EV_MAXPRI); |
1963 | ev_io_start (EV_A_ &fs_w); |
2756 | ev_io_start (EV_A_ &fs_w); |
1964 | } |
2757 | } |
1965 | } |
2758 | } |
1966 | |
2759 | |
1967 | void inline_size |
2760 | inline_size void |
1968 | infy_fork (EV_P) |
2761 | infy_fork (EV_P) |
1969 | { |
2762 | { |
1970 | int slot; |
2763 | int slot; |
1971 | |
2764 | |
1972 | if (fs_fd < 0) |
2765 | if (fs_fd < 0) |
… | |
… | |
1988 | w->wd = -1; |
2781 | w->wd = -1; |
1989 | |
2782 | |
1990 | if (fs_fd >= 0) |
2783 | if (fs_fd >= 0) |
1991 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2784 | infy_add (EV_A_ w); /* re-add, no matter what */ |
1992 | else |
2785 | else |
1993 | ev_timer_start (EV_A_ &w->timer); |
2786 | ev_timer_again (EV_A_ &w->timer); |
1994 | } |
2787 | } |
1995 | |
|
|
1996 | } |
2788 | } |
1997 | } |
2789 | } |
1998 | |
2790 | |
|
|
2791 | #endif |
|
|
2792 | |
|
|
2793 | #ifdef _WIN32 |
|
|
2794 | # define EV_LSTAT(p,b) _stati64 (p, b) |
|
|
2795 | #else |
|
|
2796 | # define EV_LSTAT(p,b) lstat (p, b) |
1999 | #endif |
2797 | #endif |
2000 | |
2798 | |
2001 | void |
2799 | void |
2002 | ev_stat_stat (EV_P_ ev_stat *w) |
2800 | ev_stat_stat (EV_P_ ev_stat *w) |
2003 | { |
2801 | { |
… | |
… | |
2030 | || w->prev.st_atime != w->attr.st_atime |
2828 | || w->prev.st_atime != w->attr.st_atime |
2031 | || w->prev.st_mtime != w->attr.st_mtime |
2829 | || w->prev.st_mtime != w->attr.st_mtime |
2032 | || w->prev.st_ctime != w->attr.st_ctime |
2830 | || w->prev.st_ctime != w->attr.st_ctime |
2033 | ) { |
2831 | ) { |
2034 | #if EV_USE_INOTIFY |
2832 | #if EV_USE_INOTIFY |
|
|
2833 | if (fs_fd >= 0) |
|
|
2834 | { |
2035 | infy_del (EV_A_ w); |
2835 | infy_del (EV_A_ w); |
2036 | infy_add (EV_A_ w); |
2836 | infy_add (EV_A_ w); |
2037 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
2837 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
2838 | } |
2038 | #endif |
2839 | #endif |
2039 | |
2840 | |
2040 | ev_feed_event (EV_A_ w, EV_STAT); |
2841 | ev_feed_event (EV_A_ w, EV_STAT); |
2041 | } |
2842 | } |
2042 | } |
2843 | } |
… | |
… | |
2045 | ev_stat_start (EV_P_ ev_stat *w) |
2846 | ev_stat_start (EV_P_ ev_stat *w) |
2046 | { |
2847 | { |
2047 | if (expect_false (ev_is_active (w))) |
2848 | if (expect_false (ev_is_active (w))) |
2048 | return; |
2849 | return; |
2049 | |
2850 | |
2050 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2051 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2052 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2053 | |
|
|
2054 | ev_stat_stat (EV_A_ w); |
2851 | ev_stat_stat (EV_A_ w); |
2055 | |
2852 | |
|
|
2853 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
2056 | if (w->interval < MIN_STAT_INTERVAL) |
2854 | w->interval = MIN_STAT_INTERVAL; |
2057 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2058 | |
2855 | |
2059 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
2856 | ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL); |
2060 | ev_set_priority (&w->timer, ev_priority (w)); |
2857 | ev_set_priority (&w->timer, ev_priority (w)); |
2061 | |
2858 | |
2062 | #if EV_USE_INOTIFY |
2859 | #if EV_USE_INOTIFY |
2063 | infy_init (EV_A); |
2860 | infy_init (EV_A); |
2064 | |
2861 | |
2065 | if (fs_fd >= 0) |
2862 | if (fs_fd >= 0) |
2066 | infy_add (EV_A_ w); |
2863 | infy_add (EV_A_ w); |
2067 | else |
2864 | else |
2068 | #endif |
2865 | #endif |
2069 | ev_timer_start (EV_A_ &w->timer); |
2866 | ev_timer_again (EV_A_ &w->timer); |
2070 | |
2867 | |
2071 | ev_start (EV_A_ (W)w, 1); |
2868 | ev_start (EV_A_ (W)w, 1); |
|
|
2869 | |
|
|
2870 | EV_FREQUENT_CHECK; |
2072 | } |
2871 | } |
2073 | |
2872 | |
2074 | void |
2873 | void |
2075 | ev_stat_stop (EV_P_ ev_stat *w) |
2874 | ev_stat_stop (EV_P_ ev_stat *w) |
2076 | { |
2875 | { |
2077 | clear_pending (EV_A_ (W)w); |
2876 | clear_pending (EV_A_ (W)w); |
2078 | if (expect_false (!ev_is_active (w))) |
2877 | if (expect_false (!ev_is_active (w))) |
2079 | return; |
2878 | return; |
2080 | |
2879 | |
|
|
2880 | EV_FREQUENT_CHECK; |
|
|
2881 | |
2081 | #if EV_USE_INOTIFY |
2882 | #if EV_USE_INOTIFY |
2082 | infy_del (EV_A_ w); |
2883 | infy_del (EV_A_ w); |
2083 | #endif |
2884 | #endif |
2084 | ev_timer_stop (EV_A_ &w->timer); |
2885 | ev_timer_stop (EV_A_ &w->timer); |
2085 | |
2886 | |
2086 | ev_stop (EV_A_ (W)w); |
2887 | ev_stop (EV_A_ (W)w); |
|
|
2888 | |
|
|
2889 | EV_FREQUENT_CHECK; |
2087 | } |
2890 | } |
2088 | #endif |
2891 | #endif |
2089 | |
2892 | |
2090 | #if EV_IDLE_ENABLE |
2893 | #if EV_IDLE_ENABLE |
2091 | void |
2894 | void |
… | |
… | |
2093 | { |
2896 | { |
2094 | if (expect_false (ev_is_active (w))) |
2897 | if (expect_false (ev_is_active (w))) |
2095 | return; |
2898 | return; |
2096 | |
2899 | |
2097 | pri_adjust (EV_A_ (W)w); |
2900 | pri_adjust (EV_A_ (W)w); |
|
|
2901 | |
|
|
2902 | EV_FREQUENT_CHECK; |
2098 | |
2903 | |
2099 | { |
2904 | { |
2100 | int active = ++idlecnt [ABSPRI (w)]; |
2905 | int active = ++idlecnt [ABSPRI (w)]; |
2101 | |
2906 | |
2102 | ++idleall; |
2907 | ++idleall; |
2103 | ev_start (EV_A_ (W)w, active); |
2908 | ev_start (EV_A_ (W)w, active); |
2104 | |
2909 | |
2105 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
2910 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
2106 | idles [ABSPRI (w)][active - 1] = w; |
2911 | idles [ABSPRI (w)][active - 1] = w; |
2107 | } |
2912 | } |
|
|
2913 | |
|
|
2914 | EV_FREQUENT_CHECK; |
2108 | } |
2915 | } |
2109 | |
2916 | |
2110 | void |
2917 | void |
2111 | ev_idle_stop (EV_P_ ev_idle *w) |
2918 | ev_idle_stop (EV_P_ ev_idle *w) |
2112 | { |
2919 | { |
2113 | clear_pending (EV_A_ (W)w); |
2920 | clear_pending (EV_A_ (W)w); |
2114 | if (expect_false (!ev_is_active (w))) |
2921 | if (expect_false (!ev_is_active (w))) |
2115 | return; |
2922 | return; |
2116 | |
2923 | |
|
|
2924 | EV_FREQUENT_CHECK; |
|
|
2925 | |
2117 | { |
2926 | { |
2118 | int active = ((W)w)->active; |
2927 | int active = ev_active (w); |
2119 | |
2928 | |
2120 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2929 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2121 | ((W)idles [ABSPRI (w)][active - 1])->active = active; |
2930 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
2122 | |
2931 | |
2123 | ev_stop (EV_A_ (W)w); |
2932 | ev_stop (EV_A_ (W)w); |
2124 | --idleall; |
2933 | --idleall; |
2125 | } |
2934 | } |
|
|
2935 | |
|
|
2936 | EV_FREQUENT_CHECK; |
2126 | } |
2937 | } |
2127 | #endif |
2938 | #endif |
2128 | |
2939 | |
2129 | void |
2940 | void |
2130 | ev_prepare_start (EV_P_ ev_prepare *w) |
2941 | ev_prepare_start (EV_P_ ev_prepare *w) |
2131 | { |
2942 | { |
2132 | if (expect_false (ev_is_active (w))) |
2943 | if (expect_false (ev_is_active (w))) |
2133 | return; |
2944 | return; |
|
|
2945 | |
|
|
2946 | EV_FREQUENT_CHECK; |
2134 | |
2947 | |
2135 | ev_start (EV_A_ (W)w, ++preparecnt); |
2948 | ev_start (EV_A_ (W)w, ++preparecnt); |
2136 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
2949 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
2137 | prepares [preparecnt - 1] = w; |
2950 | prepares [preparecnt - 1] = w; |
|
|
2951 | |
|
|
2952 | EV_FREQUENT_CHECK; |
2138 | } |
2953 | } |
2139 | |
2954 | |
2140 | void |
2955 | void |
2141 | ev_prepare_stop (EV_P_ ev_prepare *w) |
2956 | ev_prepare_stop (EV_P_ ev_prepare *w) |
2142 | { |
2957 | { |
2143 | clear_pending (EV_A_ (W)w); |
2958 | clear_pending (EV_A_ (W)w); |
2144 | if (expect_false (!ev_is_active (w))) |
2959 | if (expect_false (!ev_is_active (w))) |
2145 | return; |
2960 | return; |
2146 | |
2961 | |
|
|
2962 | EV_FREQUENT_CHECK; |
|
|
2963 | |
2147 | { |
2964 | { |
2148 | int active = ((W)w)->active; |
2965 | int active = ev_active (w); |
|
|
2966 | |
2149 | prepares [active - 1] = prepares [--preparecnt]; |
2967 | prepares [active - 1] = prepares [--preparecnt]; |
2150 | ((W)prepares [active - 1])->active = active; |
2968 | ev_active (prepares [active - 1]) = active; |
2151 | } |
2969 | } |
2152 | |
2970 | |
2153 | ev_stop (EV_A_ (W)w); |
2971 | ev_stop (EV_A_ (W)w); |
|
|
2972 | |
|
|
2973 | EV_FREQUENT_CHECK; |
2154 | } |
2974 | } |
2155 | |
2975 | |
2156 | void |
2976 | void |
2157 | ev_check_start (EV_P_ ev_check *w) |
2977 | ev_check_start (EV_P_ ev_check *w) |
2158 | { |
2978 | { |
2159 | if (expect_false (ev_is_active (w))) |
2979 | if (expect_false (ev_is_active (w))) |
2160 | return; |
2980 | return; |
|
|
2981 | |
|
|
2982 | EV_FREQUENT_CHECK; |
2161 | |
2983 | |
2162 | ev_start (EV_A_ (W)w, ++checkcnt); |
2984 | ev_start (EV_A_ (W)w, ++checkcnt); |
2163 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
2985 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
2164 | checks [checkcnt - 1] = w; |
2986 | checks [checkcnt - 1] = w; |
|
|
2987 | |
|
|
2988 | EV_FREQUENT_CHECK; |
2165 | } |
2989 | } |
2166 | |
2990 | |
2167 | void |
2991 | void |
2168 | ev_check_stop (EV_P_ ev_check *w) |
2992 | ev_check_stop (EV_P_ ev_check *w) |
2169 | { |
2993 | { |
2170 | clear_pending (EV_A_ (W)w); |
2994 | clear_pending (EV_A_ (W)w); |
2171 | if (expect_false (!ev_is_active (w))) |
2995 | if (expect_false (!ev_is_active (w))) |
2172 | return; |
2996 | return; |
2173 | |
2997 | |
|
|
2998 | EV_FREQUENT_CHECK; |
|
|
2999 | |
2174 | { |
3000 | { |
2175 | int active = ((W)w)->active; |
3001 | int active = ev_active (w); |
|
|
3002 | |
2176 | checks [active - 1] = checks [--checkcnt]; |
3003 | checks [active - 1] = checks [--checkcnt]; |
2177 | ((W)checks [active - 1])->active = active; |
3004 | ev_active (checks [active - 1]) = active; |
2178 | } |
3005 | } |
2179 | |
3006 | |
2180 | ev_stop (EV_A_ (W)w); |
3007 | ev_stop (EV_A_ (W)w); |
|
|
3008 | |
|
|
3009 | EV_FREQUENT_CHECK; |
2181 | } |
3010 | } |
2182 | |
3011 | |
2183 | #if EV_EMBED_ENABLE |
3012 | #if EV_EMBED_ENABLE |
2184 | void noinline |
3013 | void noinline |
2185 | ev_embed_sweep (EV_P_ ev_embed *w) |
3014 | ev_embed_sweep (EV_P_ ev_embed *w) |
2186 | { |
3015 | { |
2187 | ev_loop (w->loop, EVLOOP_NONBLOCK); |
3016 | ev_loop (w->other, EVLOOP_NONBLOCK); |
2188 | } |
3017 | } |
2189 | |
3018 | |
2190 | static void |
3019 | static void |
2191 | embed_cb (EV_P_ ev_io *io, int revents) |
3020 | embed_io_cb (EV_P_ ev_io *io, int revents) |
2192 | { |
3021 | { |
2193 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
3022 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
2194 | |
3023 | |
2195 | if (ev_cb (w)) |
3024 | if (ev_cb (w)) |
2196 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
3025 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2197 | else |
3026 | else |
2198 | ev_embed_sweep (loop, w); |
3027 | ev_loop (w->other, EVLOOP_NONBLOCK); |
2199 | } |
3028 | } |
|
|
3029 | |
|
|
3030 | static void |
|
|
3031 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
|
|
3032 | { |
|
|
3033 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
|
|
3034 | |
|
|
3035 | { |
|
|
3036 | struct ev_loop *loop = w->other; |
|
|
3037 | |
|
|
3038 | while (fdchangecnt) |
|
|
3039 | { |
|
|
3040 | fd_reify (EV_A); |
|
|
3041 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
3042 | } |
|
|
3043 | } |
|
|
3044 | } |
|
|
3045 | |
|
|
3046 | static void |
|
|
3047 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
|
|
3048 | { |
|
|
3049 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
|
|
3050 | |
|
|
3051 | ev_embed_stop (EV_A_ w); |
|
|
3052 | |
|
|
3053 | { |
|
|
3054 | struct ev_loop *loop = w->other; |
|
|
3055 | |
|
|
3056 | ev_loop_fork (EV_A); |
|
|
3057 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
3058 | } |
|
|
3059 | |
|
|
3060 | ev_embed_start (EV_A_ w); |
|
|
3061 | } |
|
|
3062 | |
|
|
3063 | #if 0 |
|
|
3064 | static void |
|
|
3065 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
|
|
3066 | { |
|
|
3067 | ev_idle_stop (EV_A_ idle); |
|
|
3068 | } |
|
|
3069 | #endif |
2200 | |
3070 | |
2201 | void |
3071 | void |
2202 | ev_embed_start (EV_P_ ev_embed *w) |
3072 | ev_embed_start (EV_P_ ev_embed *w) |
2203 | { |
3073 | { |
2204 | if (expect_false (ev_is_active (w))) |
3074 | if (expect_false (ev_is_active (w))) |
2205 | return; |
3075 | return; |
2206 | |
3076 | |
2207 | { |
3077 | { |
2208 | struct ev_loop *loop = w->loop; |
3078 | struct ev_loop *loop = w->other; |
2209 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3079 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2210 | ev_io_init (&w->io, embed_cb, backend_fd, EV_READ); |
3080 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2211 | } |
3081 | } |
|
|
3082 | |
|
|
3083 | EV_FREQUENT_CHECK; |
2212 | |
3084 | |
2213 | ev_set_priority (&w->io, ev_priority (w)); |
3085 | ev_set_priority (&w->io, ev_priority (w)); |
2214 | ev_io_start (EV_A_ &w->io); |
3086 | ev_io_start (EV_A_ &w->io); |
2215 | |
3087 | |
|
|
3088 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
|
|
3089 | ev_set_priority (&w->prepare, EV_MINPRI); |
|
|
3090 | ev_prepare_start (EV_A_ &w->prepare); |
|
|
3091 | |
|
|
3092 | ev_fork_init (&w->fork, embed_fork_cb); |
|
|
3093 | ev_fork_start (EV_A_ &w->fork); |
|
|
3094 | |
|
|
3095 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
|
|
3096 | |
2216 | ev_start (EV_A_ (W)w, 1); |
3097 | ev_start (EV_A_ (W)w, 1); |
|
|
3098 | |
|
|
3099 | EV_FREQUENT_CHECK; |
2217 | } |
3100 | } |
2218 | |
3101 | |
2219 | void |
3102 | void |
2220 | ev_embed_stop (EV_P_ ev_embed *w) |
3103 | ev_embed_stop (EV_P_ ev_embed *w) |
2221 | { |
3104 | { |
2222 | clear_pending (EV_A_ (W)w); |
3105 | clear_pending (EV_A_ (W)w); |
2223 | if (expect_false (!ev_is_active (w))) |
3106 | if (expect_false (!ev_is_active (w))) |
2224 | return; |
3107 | return; |
2225 | |
3108 | |
|
|
3109 | EV_FREQUENT_CHECK; |
|
|
3110 | |
2226 | ev_io_stop (EV_A_ &w->io); |
3111 | ev_io_stop (EV_A_ &w->io); |
|
|
3112 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
3113 | ev_fork_stop (EV_A_ &w->fork); |
2227 | |
3114 | |
2228 | ev_stop (EV_A_ (W)w); |
3115 | EV_FREQUENT_CHECK; |
2229 | } |
3116 | } |
2230 | #endif |
3117 | #endif |
2231 | |
3118 | |
2232 | #if EV_FORK_ENABLE |
3119 | #if EV_FORK_ENABLE |
2233 | void |
3120 | void |
2234 | ev_fork_start (EV_P_ ev_fork *w) |
3121 | ev_fork_start (EV_P_ ev_fork *w) |
2235 | { |
3122 | { |
2236 | if (expect_false (ev_is_active (w))) |
3123 | if (expect_false (ev_is_active (w))) |
2237 | return; |
3124 | return; |
|
|
3125 | |
|
|
3126 | EV_FREQUENT_CHECK; |
2238 | |
3127 | |
2239 | ev_start (EV_A_ (W)w, ++forkcnt); |
3128 | ev_start (EV_A_ (W)w, ++forkcnt); |
2240 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
3129 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
2241 | forks [forkcnt - 1] = w; |
3130 | forks [forkcnt - 1] = w; |
|
|
3131 | |
|
|
3132 | EV_FREQUENT_CHECK; |
2242 | } |
3133 | } |
2243 | |
3134 | |
2244 | void |
3135 | void |
2245 | ev_fork_stop (EV_P_ ev_fork *w) |
3136 | ev_fork_stop (EV_P_ ev_fork *w) |
2246 | { |
3137 | { |
2247 | clear_pending (EV_A_ (W)w); |
3138 | clear_pending (EV_A_ (W)w); |
2248 | if (expect_false (!ev_is_active (w))) |
3139 | if (expect_false (!ev_is_active (w))) |
2249 | return; |
3140 | return; |
2250 | |
3141 | |
|
|
3142 | EV_FREQUENT_CHECK; |
|
|
3143 | |
2251 | { |
3144 | { |
2252 | int active = ((W)w)->active; |
3145 | int active = ev_active (w); |
|
|
3146 | |
2253 | forks [active - 1] = forks [--forkcnt]; |
3147 | forks [active - 1] = forks [--forkcnt]; |
2254 | ((W)forks [active - 1])->active = active; |
3148 | ev_active (forks [active - 1]) = active; |
2255 | } |
3149 | } |
2256 | |
3150 | |
2257 | ev_stop (EV_A_ (W)w); |
3151 | ev_stop (EV_A_ (W)w); |
|
|
3152 | |
|
|
3153 | EV_FREQUENT_CHECK; |
|
|
3154 | } |
|
|
3155 | #endif |
|
|
3156 | |
|
|
3157 | #if EV_ASYNC_ENABLE |
|
|
3158 | void |
|
|
3159 | ev_async_start (EV_P_ ev_async *w) |
|
|
3160 | { |
|
|
3161 | if (expect_false (ev_is_active (w))) |
|
|
3162 | return; |
|
|
3163 | |
|
|
3164 | evpipe_init (EV_A); |
|
|
3165 | |
|
|
3166 | EV_FREQUENT_CHECK; |
|
|
3167 | |
|
|
3168 | ev_start (EV_A_ (W)w, ++asynccnt); |
|
|
3169 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
|
|
3170 | asyncs [asynccnt - 1] = w; |
|
|
3171 | |
|
|
3172 | EV_FREQUENT_CHECK; |
|
|
3173 | } |
|
|
3174 | |
|
|
3175 | void |
|
|
3176 | ev_async_stop (EV_P_ ev_async *w) |
|
|
3177 | { |
|
|
3178 | clear_pending (EV_A_ (W)w); |
|
|
3179 | if (expect_false (!ev_is_active (w))) |
|
|
3180 | return; |
|
|
3181 | |
|
|
3182 | EV_FREQUENT_CHECK; |
|
|
3183 | |
|
|
3184 | { |
|
|
3185 | int active = ev_active (w); |
|
|
3186 | |
|
|
3187 | asyncs [active - 1] = asyncs [--asynccnt]; |
|
|
3188 | ev_active (asyncs [active - 1]) = active; |
|
|
3189 | } |
|
|
3190 | |
|
|
3191 | ev_stop (EV_A_ (W)w); |
|
|
3192 | |
|
|
3193 | EV_FREQUENT_CHECK; |
|
|
3194 | } |
|
|
3195 | |
|
|
3196 | void |
|
|
3197 | ev_async_send (EV_P_ ev_async *w) |
|
|
3198 | { |
|
|
3199 | w->sent = 1; |
|
|
3200 | evpipe_write (EV_A_ &gotasync); |
2258 | } |
3201 | } |
2259 | #endif |
3202 | #endif |
2260 | |
3203 | |
2261 | /*****************************************************************************/ |
3204 | /*****************************************************************************/ |
2262 | |
3205 | |
… | |
… | |
2272 | once_cb (EV_P_ struct ev_once *once, int revents) |
3215 | once_cb (EV_P_ struct ev_once *once, int revents) |
2273 | { |
3216 | { |
2274 | void (*cb)(int revents, void *arg) = once->cb; |
3217 | void (*cb)(int revents, void *arg) = once->cb; |
2275 | void *arg = once->arg; |
3218 | void *arg = once->arg; |
2276 | |
3219 | |
2277 | ev_io_stop (EV_A_ &once->io); |
3220 | ev_io_stop (EV_A_ &once->io); |
2278 | ev_timer_stop (EV_A_ &once->to); |
3221 | ev_timer_stop (EV_A_ &once->to); |
2279 | ev_free (once); |
3222 | ev_free (once); |
2280 | |
3223 | |
2281 | cb (revents, arg); |
3224 | cb (revents, arg); |
2282 | } |
3225 | } |
2283 | |
3226 | |
2284 | static void |
3227 | static void |
2285 | once_cb_io (EV_P_ ev_io *w, int revents) |
3228 | once_cb_io (EV_P_ ev_io *w, int revents) |
2286 | { |
3229 | { |
2287 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
3230 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)); |
|
|
3231 | |
|
|
3232 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to)); |
2288 | } |
3233 | } |
2289 | |
3234 | |
2290 | static void |
3235 | static void |
2291 | once_cb_to (EV_P_ ev_timer *w, int revents) |
3236 | once_cb_to (EV_P_ ev_timer *w, int revents) |
2292 | { |
3237 | { |
2293 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
3238 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)); |
|
|
3239 | |
|
|
3240 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
2294 | } |
3241 | } |
2295 | |
3242 | |
2296 | void |
3243 | void |
2297 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
3244 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
2298 | { |
3245 | { |
… | |
… | |
2320 | ev_timer_set (&once->to, timeout, 0.); |
3267 | ev_timer_set (&once->to, timeout, 0.); |
2321 | ev_timer_start (EV_A_ &once->to); |
3268 | ev_timer_start (EV_A_ &once->to); |
2322 | } |
3269 | } |
2323 | } |
3270 | } |
2324 | |
3271 | |
|
|
3272 | /*****************************************************************************/ |
|
|
3273 | |
|
|
3274 | #if EV_WALK_ENABLE |
|
|
3275 | void |
|
|
3276 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
|
|
3277 | { |
|
|
3278 | int i, j; |
|
|
3279 | ev_watcher_list *wl, *wn; |
|
|
3280 | |
|
|
3281 | if (types & (EV_IO | EV_EMBED)) |
|
|
3282 | for (i = 0; i < anfdmax; ++i) |
|
|
3283 | for (wl = anfds [i].head; wl; ) |
|
|
3284 | { |
|
|
3285 | wn = wl->next; |
|
|
3286 | |
|
|
3287 | #if EV_EMBED_ENABLE |
|
|
3288 | if (ev_cb ((ev_io *)wl) == embed_io_cb) |
|
|
3289 | { |
|
|
3290 | if (types & EV_EMBED) |
|
|
3291 | cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io)); |
|
|
3292 | } |
|
|
3293 | else |
|
|
3294 | #endif |
|
|
3295 | #if EV_USE_INOTIFY |
|
|
3296 | if (ev_cb ((ev_io *)wl) == infy_cb) |
|
|
3297 | ; |
|
|
3298 | else |
|
|
3299 | #endif |
|
|
3300 | if ((ev_io *)wl != &pipe_w) |
|
|
3301 | if (types & EV_IO) |
|
|
3302 | cb (EV_A_ EV_IO, wl); |
|
|
3303 | |
|
|
3304 | wl = wn; |
|
|
3305 | } |
|
|
3306 | |
|
|
3307 | if (types & (EV_TIMER | EV_STAT)) |
|
|
3308 | for (i = timercnt + HEAP0; i-- > HEAP0; ) |
|
|
3309 | #if EV_STAT_ENABLE |
|
|
3310 | /*TODO: timer is not always active*/ |
|
|
3311 | if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb) |
|
|
3312 | { |
|
|
3313 | if (types & EV_STAT) |
|
|
3314 | cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer)); |
|
|
3315 | } |
|
|
3316 | else |
|
|
3317 | #endif |
|
|
3318 | if (types & EV_TIMER) |
|
|
3319 | cb (EV_A_ EV_TIMER, ANHE_w (timers [i])); |
|
|
3320 | |
|
|
3321 | #if EV_PERIODIC_ENABLE |
|
|
3322 | if (types & EV_PERIODIC) |
|
|
3323 | for (i = periodiccnt + HEAP0; i-- > HEAP0; ) |
|
|
3324 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
|
|
3325 | #endif |
|
|
3326 | |
|
|
3327 | #if EV_IDLE_ENABLE |
|
|
3328 | if (types & EV_IDLE) |
|
|
3329 | for (j = NUMPRI; i--; ) |
|
|
3330 | for (i = idlecnt [j]; i--; ) |
|
|
3331 | cb (EV_A_ EV_IDLE, idles [j][i]); |
|
|
3332 | #endif |
|
|
3333 | |
|
|
3334 | #if EV_FORK_ENABLE |
|
|
3335 | if (types & EV_FORK) |
|
|
3336 | for (i = forkcnt; i--; ) |
|
|
3337 | if (ev_cb (forks [i]) != embed_fork_cb) |
|
|
3338 | cb (EV_A_ EV_FORK, forks [i]); |
|
|
3339 | #endif |
|
|
3340 | |
|
|
3341 | #if EV_ASYNC_ENABLE |
|
|
3342 | if (types & EV_ASYNC) |
|
|
3343 | for (i = asynccnt; i--; ) |
|
|
3344 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
|
|
3345 | #endif |
|
|
3346 | |
|
|
3347 | if (types & EV_PREPARE) |
|
|
3348 | for (i = preparecnt; i--; ) |
|
|
3349 | #if EV_EMBED_ENABLE |
|
|
3350 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
|
|
3351 | #endif |
|
|
3352 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
3353 | |
|
|
3354 | if (types & EV_CHECK) |
|
|
3355 | for (i = checkcnt; i--; ) |
|
|
3356 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
3357 | |
|
|
3358 | if (types & EV_SIGNAL) |
|
|
3359 | for (i = 0; i < signalmax; ++i) |
|
|
3360 | for (wl = signals [i].head; wl; ) |
|
|
3361 | { |
|
|
3362 | wn = wl->next; |
|
|
3363 | cb (EV_A_ EV_SIGNAL, wl); |
|
|
3364 | wl = wn; |
|
|
3365 | } |
|
|
3366 | |
|
|
3367 | if (types & EV_CHILD) |
|
|
3368 | for (i = EV_PID_HASHSIZE; i--; ) |
|
|
3369 | for (wl = childs [i]; wl; ) |
|
|
3370 | { |
|
|
3371 | wn = wl->next; |
|
|
3372 | cb (EV_A_ EV_CHILD, wl); |
|
|
3373 | wl = wn; |
|
|
3374 | } |
|
|
3375 | /* EV_STAT 0x00001000 /* stat data changed */ |
|
|
3376 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
|
|
3377 | } |
|
|
3378 | #endif |
|
|
3379 | |
|
|
3380 | #if EV_MULTIPLICITY |
|
|
3381 | #include "ev_wrap.h" |
|
|
3382 | #endif |
|
|
3383 | |
2325 | #ifdef __cplusplus |
3384 | #ifdef __cplusplus |
2326 | } |
3385 | } |
2327 | #endif |
3386 | #endif |
2328 | |
3387 | |