1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008 Marc Alexander Lehmann <libev@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * modification, are permitted provided that the following conditions are |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * met: |
9 | * |
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10 | * 1. Redistributions of source code must retain the above copyright notice, |
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11 | * this list of conditions and the following disclaimer. |
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12 | * |
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13 | * 2. Redistributions in binary form must reproduce the above copyright |
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14 | * notice, this list of conditions and the following disclaimer in the |
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15 | * documentation and/or other materials provided with the distribution. |
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16 | * |
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17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
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18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
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19 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
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20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
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21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
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22 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
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23 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
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24 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
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25 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
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26 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
10 | * |
27 | * |
11 | * * Redistributions of source code must retain the above copyright |
28 | * Alternatively, the contents of this file may be used under the terms of |
12 | * notice, this list of conditions and the following disclaimer. |
29 | * the GNU General Public License ("GPL") version 2 or any later version, |
13 | * |
30 | * in which case the provisions of the GPL are applicable instead of |
14 | * * Redistributions in binary form must reproduce the above |
31 | * the above. If you wish to allow the use of your version of this file |
15 | * copyright notice, this list of conditions and the following |
32 | * only under the terms of the GPL and not to allow others to use your |
16 | * disclaimer in the documentation and/or other materials provided |
33 | * version of this file under the BSD license, indicate your decision |
17 | * with the distribution. |
34 | * by deleting the provisions above and replace them with the notice |
18 | * |
35 | * and other provisions required by the GPL. If you do not delete the |
19 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
36 | * provisions above, a recipient may use your version of this file under |
20 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
37 | * either the BSD or the GPL. |
21 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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22 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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23 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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24 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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25 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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26 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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27 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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28 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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29 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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30 | */ |
38 | */ |
31 | |
39 | |
32 | #ifdef __cplusplus |
40 | #ifdef __cplusplus |
33 | extern "C" { |
41 | extern "C" { |
34 | #endif |
42 | #endif |
35 | |
43 | |
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44 | /* this big block deduces configuration from config.h */ |
36 | #ifndef EV_STANDALONE |
45 | #ifndef EV_STANDALONE |
37 | # ifdef EV_CONFIG_H |
46 | # ifdef EV_CONFIG_H |
38 | # include EV_CONFIG_H |
47 | # include EV_CONFIG_H |
39 | # else |
48 | # else |
40 | # include "config.h" |
49 | # include "config.h" |
… | |
… | |
51 | # ifndef EV_USE_MONOTONIC |
60 | # ifndef EV_USE_MONOTONIC |
52 | # define EV_USE_MONOTONIC 0 |
61 | # define EV_USE_MONOTONIC 0 |
53 | # endif |
62 | # endif |
54 | # ifndef EV_USE_REALTIME |
63 | # ifndef EV_USE_REALTIME |
55 | # define EV_USE_REALTIME 0 |
64 | # define EV_USE_REALTIME 0 |
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65 | # endif |
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66 | # endif |
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67 | |
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68 | # ifndef EV_USE_NANOSLEEP |
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69 | # if HAVE_NANOSLEEP |
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70 | # define EV_USE_NANOSLEEP 1 |
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71 | # else |
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72 | # define EV_USE_NANOSLEEP 0 |
56 | # endif |
73 | # endif |
57 | # endif |
74 | # endif |
58 | |
75 | |
59 | # ifndef EV_USE_SELECT |
76 | # ifndef EV_USE_SELECT |
60 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
77 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
… | |
… | |
94 | # else |
111 | # else |
95 | # define EV_USE_PORT 0 |
112 | # define EV_USE_PORT 0 |
96 | # endif |
113 | # endif |
97 | # endif |
114 | # endif |
98 | |
115 | |
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116 | # ifndef EV_USE_INOTIFY |
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117 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
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118 | # define EV_USE_INOTIFY 1 |
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119 | # else |
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120 | # define EV_USE_INOTIFY 0 |
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121 | # endif |
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122 | # endif |
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123 | |
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124 | # ifndef EV_USE_EVENTFD |
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125 | # if HAVE_EVENTFD |
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126 | # define EV_USE_EVENTFD 1 |
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127 | # else |
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128 | # define EV_USE_EVENTFD 0 |
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129 | # endif |
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130 | # endif |
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131 | |
99 | #endif |
132 | #endif |
100 | |
133 | |
101 | #include <math.h> |
134 | #include <math.h> |
102 | #include <stdlib.h> |
135 | #include <stdlib.h> |
103 | #include <fcntl.h> |
136 | #include <fcntl.h> |
… | |
… | |
110 | #include <sys/types.h> |
143 | #include <sys/types.h> |
111 | #include <time.h> |
144 | #include <time.h> |
112 | |
145 | |
113 | #include <signal.h> |
146 | #include <signal.h> |
114 | |
147 | |
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148 | #ifdef EV_H |
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149 | # include EV_H |
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150 | #else |
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151 | # include "ev.h" |
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152 | #endif |
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153 | |
115 | #ifndef _WIN32 |
154 | #ifndef _WIN32 |
116 | # include <unistd.h> |
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117 | # include <sys/time.h> |
155 | # include <sys/time.h> |
118 | # include <sys/wait.h> |
156 | # include <sys/wait.h> |
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157 | # include <unistd.h> |
119 | #else |
158 | #else |
120 | # define WIN32_LEAN_AND_MEAN |
159 | # define WIN32_LEAN_AND_MEAN |
121 | # include <windows.h> |
160 | # include <windows.h> |
122 | # ifndef EV_SELECT_IS_WINSOCKET |
161 | # ifndef EV_SELECT_IS_WINSOCKET |
123 | # define EV_SELECT_IS_WINSOCKET 1 |
162 | # define EV_SELECT_IS_WINSOCKET 1 |
124 | # endif |
163 | # endif |
125 | #endif |
164 | #endif |
126 | |
165 | |
127 | /**/ |
166 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
128 | |
167 | |
129 | #ifndef EV_USE_MONOTONIC |
168 | #ifndef EV_USE_MONOTONIC |
130 | # define EV_USE_MONOTONIC 0 |
169 | # define EV_USE_MONOTONIC 0 |
131 | #endif |
170 | #endif |
132 | |
171 | |
133 | #ifndef EV_USE_REALTIME |
172 | #ifndef EV_USE_REALTIME |
134 | # define EV_USE_REALTIME 0 |
173 | # define EV_USE_REALTIME 0 |
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174 | #endif |
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175 | |
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176 | #ifndef EV_USE_NANOSLEEP |
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177 | # define EV_USE_NANOSLEEP 0 |
135 | #endif |
178 | #endif |
136 | |
179 | |
137 | #ifndef EV_USE_SELECT |
180 | #ifndef EV_USE_SELECT |
138 | # define EV_USE_SELECT 1 |
181 | # define EV_USE_SELECT 1 |
139 | #endif |
182 | #endif |
… | |
… | |
145 | # define EV_USE_POLL 1 |
188 | # define EV_USE_POLL 1 |
146 | # endif |
189 | # endif |
147 | #endif |
190 | #endif |
148 | |
191 | |
149 | #ifndef EV_USE_EPOLL |
192 | #ifndef EV_USE_EPOLL |
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193 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
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194 | # define EV_USE_EPOLL 1 |
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195 | # else |
150 | # define EV_USE_EPOLL 0 |
196 | # define EV_USE_EPOLL 0 |
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197 | # endif |
151 | #endif |
198 | #endif |
152 | |
199 | |
153 | #ifndef EV_USE_KQUEUE |
200 | #ifndef EV_USE_KQUEUE |
154 | # define EV_USE_KQUEUE 0 |
201 | # define EV_USE_KQUEUE 0 |
155 | #endif |
202 | #endif |
156 | |
203 | |
157 | #ifndef EV_USE_PORT |
204 | #ifndef EV_USE_PORT |
158 | # define EV_USE_PORT 0 |
205 | # define EV_USE_PORT 0 |
159 | #endif |
206 | #endif |
160 | |
207 | |
161 | /**/ |
208 | #ifndef EV_USE_INOTIFY |
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209 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
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210 | # define EV_USE_INOTIFY 1 |
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211 | # else |
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212 | # define EV_USE_INOTIFY 0 |
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213 | # endif |
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214 | #endif |
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215 | |
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216 | #ifndef EV_PID_HASHSIZE |
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217 | # if EV_MINIMAL |
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218 | # define EV_PID_HASHSIZE 1 |
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219 | # else |
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220 | # define EV_PID_HASHSIZE 16 |
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221 | # endif |
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222 | #endif |
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223 | |
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224 | #ifndef EV_INOTIFY_HASHSIZE |
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225 | # if EV_MINIMAL |
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226 | # define EV_INOTIFY_HASHSIZE 1 |
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227 | # else |
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228 | # define EV_INOTIFY_HASHSIZE 16 |
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229 | # endif |
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230 | #endif |
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231 | |
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232 | #ifndef EV_USE_EVENTFD |
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233 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
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234 | # define EV_USE_EVENTFD 1 |
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235 | # else |
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236 | # define EV_USE_EVENTFD 0 |
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237 | # endif |
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238 | #endif |
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239 | |
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240 | #if 0 /* debugging */ |
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241 | # define EV_VERIFY 1 |
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242 | # define EV_USE_4HEAP 1 |
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243 | # define EV_HEAP_CACHE_AT 1 |
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244 | #endif |
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245 | |
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246 | #ifndef EV_USE_4HEAP |
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247 | # define EV_USE_4HEAP !EV_MINIMAL |
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248 | #endif |
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249 | |
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250 | #ifndef EV_HEAP_CACHE_AT |
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251 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
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252 | #endif |
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253 | |
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254 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
162 | |
255 | |
163 | #ifndef CLOCK_MONOTONIC |
256 | #ifndef CLOCK_MONOTONIC |
164 | # undef EV_USE_MONOTONIC |
257 | # undef EV_USE_MONOTONIC |
165 | # define EV_USE_MONOTONIC 0 |
258 | # define EV_USE_MONOTONIC 0 |
166 | #endif |
259 | #endif |
… | |
… | |
168 | #ifndef CLOCK_REALTIME |
261 | #ifndef CLOCK_REALTIME |
169 | # undef EV_USE_REALTIME |
262 | # undef EV_USE_REALTIME |
170 | # define EV_USE_REALTIME 0 |
263 | # define EV_USE_REALTIME 0 |
171 | #endif |
264 | #endif |
172 | |
265 | |
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266 | #if !EV_STAT_ENABLE |
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267 | # undef EV_USE_INOTIFY |
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268 | # define EV_USE_INOTIFY 0 |
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269 | #endif |
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270 | |
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271 | #if !EV_USE_NANOSLEEP |
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272 | # ifndef _WIN32 |
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273 | # include <sys/select.h> |
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274 | # endif |
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275 | #endif |
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276 | |
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277 | #if EV_USE_INOTIFY |
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278 | # include <sys/inotify.h> |
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279 | #endif |
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280 | |
173 | #if EV_SELECT_IS_WINSOCKET |
281 | #if EV_SELECT_IS_WINSOCKET |
174 | # include <winsock.h> |
282 | # include <winsock.h> |
175 | #endif |
283 | #endif |
176 | |
284 | |
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285 | #if EV_USE_EVENTFD |
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286 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
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287 | # include <stdint.h> |
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288 | # ifdef __cplusplus |
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289 | extern "C" { |
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290 | # endif |
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291 | int eventfd (unsigned int initval, int flags); |
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292 | # ifdef __cplusplus |
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293 | } |
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294 | # endif |
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295 | #endif |
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296 | |
177 | /**/ |
297 | /**/ |
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298 | |
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299 | /* EV_VERIFY: enable internal consistency checks |
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300 | * undefined or zero: no verification done or available |
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301 | * 1 or higher: ev_loop_verify function available |
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302 | * 2 or higher: ev_loop_verify is called frequently |
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303 | */ |
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304 | #if EV_VERIFY >= 1 |
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305 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
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306 | #else |
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307 | # define EV_FREQUENT_CHECK do { } while (0) |
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308 | #endif |
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309 | |
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310 | /* |
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311 | * This is used to avoid floating point rounding problems. |
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312 | * It is added to ev_rt_now when scheduling periodics |
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313 | * to ensure progress, time-wise, even when rounding |
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314 | * errors are against us. |
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315 | * This value is good at least till the year 4000. |
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316 | * Better solutions welcome. |
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317 | */ |
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318 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
178 | |
319 | |
179 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
320 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
180 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
321 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
181 | #define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */ |
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182 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds */ |
322 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
183 | |
323 | |
184 | #ifdef EV_H |
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185 | # include EV_H |
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186 | #else |
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187 | # include "ev.h" |
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188 | #endif |
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189 | |
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190 | #if __GNUC__ >= 3 |
324 | #if __GNUC__ >= 4 |
191 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
325 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
192 | # define inline static inline |
326 | # define noinline __attribute__ ((noinline)) |
193 | #else |
327 | #else |
194 | # define expect(expr,value) (expr) |
328 | # define expect(expr,value) (expr) |
195 | # define inline static |
329 | # define noinline |
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330 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
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331 | # define inline |
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332 | # endif |
196 | #endif |
333 | #endif |
197 | |
334 | |
198 | #define expect_false(expr) expect ((expr) != 0, 0) |
335 | #define expect_false(expr) expect ((expr) != 0, 0) |
199 | #define expect_true(expr) expect ((expr) != 0, 1) |
336 | #define expect_true(expr) expect ((expr) != 0, 1) |
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337 | #define inline_size static inline |
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338 | |
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339 | #if EV_MINIMAL |
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340 | # define inline_speed static noinline |
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341 | #else |
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342 | # define inline_speed static inline |
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343 | #endif |
200 | |
344 | |
201 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
345 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
202 | #define ABSPRI(w) ((w)->priority - EV_MINPRI) |
346 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
203 | |
347 | |
204 | #define EMPTY0 /* required for microsofts broken pseudo-c compiler */ |
348 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
205 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
349 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
206 | |
350 | |
207 | typedef ev_watcher *W; |
351 | typedef ev_watcher *W; |
208 | typedef ev_watcher_list *WL; |
352 | typedef ev_watcher_list *WL; |
209 | typedef ev_watcher_time *WT; |
353 | typedef ev_watcher_time *WT; |
210 | |
354 | |
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355 | #define ev_active(w) ((W)(w))->active |
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356 | #define ev_at(w) ((WT)(w))->at |
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357 | |
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358 | #if EV_USE_MONOTONIC |
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359 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
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360 | /* giving it a reasonably high chance of working on typical architetcures */ |
211 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
361 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
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362 | #endif |
212 | |
363 | |
213 | #ifdef _WIN32 |
364 | #ifdef _WIN32 |
214 | # include "ev_win32.c" |
365 | # include "ev_win32.c" |
215 | #endif |
366 | #endif |
216 | |
367 | |
217 | /*****************************************************************************/ |
368 | /*****************************************************************************/ |
218 | |
369 | |
219 | static void (*syserr_cb)(const char *msg); |
370 | static void (*syserr_cb)(const char *msg); |
220 | |
371 | |
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372 | void |
221 | void ev_set_syserr_cb (void (*cb)(const char *msg)) |
373 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
222 | { |
374 | { |
223 | syserr_cb = cb; |
375 | syserr_cb = cb; |
224 | } |
376 | } |
225 | |
377 | |
226 | static void |
378 | static void noinline |
227 | syserr (const char *msg) |
379 | syserr (const char *msg) |
228 | { |
380 | { |
229 | if (!msg) |
381 | if (!msg) |
230 | msg = "(libev) system error"; |
382 | msg = "(libev) system error"; |
231 | |
383 | |
… | |
… | |
236 | perror (msg); |
388 | perror (msg); |
237 | abort (); |
389 | abort (); |
238 | } |
390 | } |
239 | } |
391 | } |
240 | |
392 | |
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393 | static void * |
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394 | ev_realloc_emul (void *ptr, long size) |
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395 | { |
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396 | /* some systems, notably openbsd and darwin, fail to properly |
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397 | * implement realloc (x, 0) (as required by both ansi c-98 and |
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398 | * the single unix specification, so work around them here. |
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399 | */ |
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400 | |
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401 | if (size) |
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402 | return realloc (ptr, size); |
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403 | |
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404 | free (ptr); |
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405 | return 0; |
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406 | } |
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407 | |
241 | static void *(*alloc)(void *ptr, long size); |
408 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
242 | |
409 | |
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410 | void |
243 | void ev_set_allocator (void *(*cb)(void *ptr, long size)) |
411 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
244 | { |
412 | { |
245 | alloc = cb; |
413 | alloc = cb; |
246 | } |
414 | } |
247 | |
415 | |
248 | static void * |
416 | inline_speed void * |
249 | ev_realloc (void *ptr, long size) |
417 | ev_realloc (void *ptr, long size) |
250 | { |
418 | { |
251 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
419 | ptr = alloc (ptr, size); |
252 | |
420 | |
253 | if (!ptr && size) |
421 | if (!ptr && size) |
254 | { |
422 | { |
255 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
423 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
256 | abort (); |
424 | abort (); |
… | |
… | |
277 | typedef struct |
445 | typedef struct |
278 | { |
446 | { |
279 | W w; |
447 | W w; |
280 | int events; |
448 | int events; |
281 | } ANPENDING; |
449 | } ANPENDING; |
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450 | |
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451 | #if EV_USE_INOTIFY |
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452 | /* hash table entry per inotify-id */ |
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453 | typedef struct |
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454 | { |
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455 | WL head; |
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456 | } ANFS; |
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457 | #endif |
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458 | |
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459 | /* Heap Entry */ |
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|
460 | #if EV_HEAP_CACHE_AT |
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|
461 | typedef struct { |
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|
462 | ev_tstamp at; |
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463 | WT w; |
|
|
464 | } ANHE; |
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465 | |
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|
466 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
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|
467 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
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|
468 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
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|
469 | #else |
|
|
470 | typedef WT ANHE; |
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471 | |
|
|
472 | #define ANHE_w(he) (he) |
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473 | #define ANHE_at(he) (he)->at |
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474 | #define ANHE_at_cache(he) |
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|
475 | #endif |
282 | |
476 | |
283 | #if EV_MULTIPLICITY |
477 | #if EV_MULTIPLICITY |
284 | |
478 | |
285 | struct ev_loop |
479 | struct ev_loop |
286 | { |
480 | { |
… | |
… | |
320 | gettimeofday (&tv, 0); |
514 | gettimeofday (&tv, 0); |
321 | return tv.tv_sec + tv.tv_usec * 1e-6; |
515 | return tv.tv_sec + tv.tv_usec * 1e-6; |
322 | #endif |
516 | #endif |
323 | } |
517 | } |
324 | |
518 | |
325 | inline ev_tstamp |
519 | ev_tstamp inline_size |
326 | get_clock (void) |
520 | get_clock (void) |
327 | { |
521 | { |
328 | #if EV_USE_MONOTONIC |
522 | #if EV_USE_MONOTONIC |
329 | if (expect_true (have_monotonic)) |
523 | if (expect_true (have_monotonic)) |
330 | { |
524 | { |
… | |
… | |
343 | { |
537 | { |
344 | return ev_rt_now; |
538 | return ev_rt_now; |
345 | } |
539 | } |
346 | #endif |
540 | #endif |
347 | |
541 | |
348 | #define array_roundsize(type,n) (((n) | 4) & ~3) |
542 | void |
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543 | ev_sleep (ev_tstamp delay) |
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544 | { |
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545 | if (delay > 0.) |
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546 | { |
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547 | #if EV_USE_NANOSLEEP |
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548 | struct timespec ts; |
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549 | |
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550 | ts.tv_sec = (time_t)delay; |
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551 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
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552 | |
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553 | nanosleep (&ts, 0); |
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554 | #elif defined(_WIN32) |
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555 | Sleep ((unsigned long)(delay * 1e3)); |
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556 | #else |
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557 | struct timeval tv; |
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558 | |
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559 | tv.tv_sec = (time_t)delay; |
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560 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
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561 | |
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562 | select (0, 0, 0, 0, &tv); |
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563 | #endif |
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564 | } |
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565 | } |
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566 | |
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567 | /*****************************************************************************/ |
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568 | |
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569 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
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570 | |
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571 | int inline_size |
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572 | array_nextsize (int elem, int cur, int cnt) |
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573 | { |
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574 | int ncur = cur + 1; |
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575 | |
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576 | do |
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577 | ncur <<= 1; |
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578 | while (cnt > ncur); |
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579 | |
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580 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
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581 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
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582 | { |
|
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583 | ncur *= elem; |
|
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584 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
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585 | ncur = ncur - sizeof (void *) * 4; |
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586 | ncur /= elem; |
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587 | } |
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588 | |
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589 | return ncur; |
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590 | } |
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591 | |
|
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592 | static noinline void * |
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593 | array_realloc (int elem, void *base, int *cur, int cnt) |
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594 | { |
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595 | *cur = array_nextsize (elem, *cur, cnt); |
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596 | return ev_realloc (base, elem * *cur); |
|
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597 | } |
349 | |
598 | |
350 | #define array_needsize(type,base,cur,cnt,init) \ |
599 | #define array_needsize(type,base,cur,cnt,init) \ |
351 | if (expect_false ((cnt) > cur)) \ |
600 | if (expect_false ((cnt) > (cur))) \ |
352 | { \ |
601 | { \ |
353 | int newcnt = cur; \ |
602 | int ocur_ = (cur); \ |
354 | do \ |
603 | (base) = (type *)array_realloc \ |
355 | { \ |
604 | (sizeof (type), (base), &(cur), (cnt)); \ |
356 | newcnt = array_roundsize (type, newcnt << 1); \ |
605 | init ((base) + (ocur_), (cur) - ocur_); \ |
357 | } \ |
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358 | while ((cnt) > newcnt); \ |
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359 | \ |
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360 | base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\ |
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361 | init (base + cur, newcnt - cur); \ |
|
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362 | cur = newcnt; \ |
|
|
363 | } |
606 | } |
364 | |
607 | |
|
|
608 | #if 0 |
365 | #define array_slim(type,stem) \ |
609 | #define array_slim(type,stem) \ |
366 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
610 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
367 | { \ |
611 | { \ |
368 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
612 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
369 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
613 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
370 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
614 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
371 | } |
615 | } |
|
|
616 | #endif |
372 | |
617 | |
373 | #define array_free(stem, idx) \ |
618 | #define array_free(stem, idx) \ |
374 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
619 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
375 | |
620 | |
376 | /*****************************************************************************/ |
621 | /*****************************************************************************/ |
377 | |
622 | |
378 | static void |
623 | void noinline |
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624 | ev_feed_event (EV_P_ void *w, int revents) |
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625 | { |
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626 | W w_ = (W)w; |
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627 | int pri = ABSPRI (w_); |
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628 | |
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629 | if (expect_false (w_->pending)) |
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630 | pendings [pri][w_->pending - 1].events |= revents; |
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631 | else |
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632 | { |
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633 | w_->pending = ++pendingcnt [pri]; |
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634 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
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635 | pendings [pri][w_->pending - 1].w = w_; |
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636 | pendings [pri][w_->pending - 1].events = revents; |
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637 | } |
|
|
638 | } |
|
|
639 | |
|
|
640 | void inline_speed |
|
|
641 | queue_events (EV_P_ W *events, int eventcnt, int type) |
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|
642 | { |
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|
643 | int i; |
|
|
644 | |
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645 | for (i = 0; i < eventcnt; ++i) |
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646 | ev_feed_event (EV_A_ events [i], type); |
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647 | } |
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648 | |
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|
649 | /*****************************************************************************/ |
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650 | |
|
|
651 | void inline_size |
379 | anfds_init (ANFD *base, int count) |
652 | anfds_init (ANFD *base, int count) |
380 | { |
653 | { |
381 | while (count--) |
654 | while (count--) |
382 | { |
655 | { |
383 | base->head = 0; |
656 | base->head = 0; |
… | |
… | |
386 | |
659 | |
387 | ++base; |
660 | ++base; |
388 | } |
661 | } |
389 | } |
662 | } |
390 | |
663 | |
391 | void |
664 | void inline_speed |
392 | ev_feed_event (EV_P_ void *w, int revents) |
|
|
393 | { |
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|
394 | W w_ = (W)w; |
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395 | |
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396 | if (expect_false (w_->pending)) |
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397 | { |
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398 | pendings [ABSPRI (w_)][w_->pending - 1].events |= revents; |
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399 | return; |
|
|
400 | } |
|
|
401 | |
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402 | w_->pending = ++pendingcnt [ABSPRI (w_)]; |
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403 | array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2); |
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404 | pendings [ABSPRI (w_)][w_->pending - 1].w = w_; |
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405 | pendings [ABSPRI (w_)][w_->pending - 1].events = revents; |
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406 | } |
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407 | |
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408 | static void |
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409 | queue_events (EV_P_ W *events, int eventcnt, int type) |
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410 | { |
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411 | int i; |
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412 | |
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413 | for (i = 0; i < eventcnt; ++i) |
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414 | ev_feed_event (EV_A_ events [i], type); |
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415 | } |
|
|
416 | |
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|
417 | inline void |
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418 | fd_event (EV_P_ int fd, int revents) |
665 | fd_event (EV_P_ int fd, int revents) |
419 | { |
666 | { |
420 | ANFD *anfd = anfds + fd; |
667 | ANFD *anfd = anfds + fd; |
421 | ev_io *w; |
668 | ev_io *w; |
422 | |
669 | |
… | |
… | |
430 | } |
677 | } |
431 | |
678 | |
432 | void |
679 | void |
433 | ev_feed_fd_event (EV_P_ int fd, int revents) |
680 | ev_feed_fd_event (EV_P_ int fd, int revents) |
434 | { |
681 | { |
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|
682 | if (fd >= 0 && fd < anfdmax) |
435 | fd_event (EV_A_ fd, revents); |
683 | fd_event (EV_A_ fd, revents); |
436 | } |
684 | } |
437 | |
685 | |
438 | /*****************************************************************************/ |
686 | void inline_size |
439 | |
|
|
440 | inline void |
|
|
441 | fd_reify (EV_P) |
687 | fd_reify (EV_P) |
442 | { |
688 | { |
443 | int i; |
689 | int i; |
444 | |
690 | |
445 | for (i = 0; i < fdchangecnt; ++i) |
691 | for (i = 0; i < fdchangecnt; ++i) |
446 | { |
692 | { |
447 | int fd = fdchanges [i]; |
693 | int fd = fdchanges [i]; |
448 | ANFD *anfd = anfds + fd; |
694 | ANFD *anfd = anfds + fd; |
449 | ev_io *w; |
695 | ev_io *w; |
450 | |
696 | |
451 | int events = 0; |
697 | unsigned char events = 0; |
452 | |
698 | |
453 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
699 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
454 | events |= w->events; |
700 | events |= (unsigned char)w->events; |
455 | |
701 | |
456 | #if EV_SELECT_IS_WINSOCKET |
702 | #if EV_SELECT_IS_WINSOCKET |
457 | if (events) |
703 | if (events) |
458 | { |
704 | { |
459 | unsigned long argp; |
705 | unsigned long argp; |
|
|
706 | #ifdef EV_FD_TO_WIN32_HANDLE |
|
|
707 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
708 | #else |
460 | anfd->handle = _get_osfhandle (fd); |
709 | anfd->handle = _get_osfhandle (fd); |
|
|
710 | #endif |
461 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
711 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
462 | } |
712 | } |
463 | #endif |
713 | #endif |
464 | |
714 | |
|
|
715 | { |
|
|
716 | unsigned char o_events = anfd->events; |
|
|
717 | unsigned char o_reify = anfd->reify; |
|
|
718 | |
465 | anfd->reify = 0; |
719 | anfd->reify = 0; |
466 | |
|
|
467 | backend_modify (EV_A_ fd, anfd->events, events); |
|
|
468 | anfd->events = events; |
720 | anfd->events = events; |
|
|
721 | |
|
|
722 | if (o_events != events || o_reify & EV_IOFDSET) |
|
|
723 | backend_modify (EV_A_ fd, o_events, events); |
|
|
724 | } |
469 | } |
725 | } |
470 | |
726 | |
471 | fdchangecnt = 0; |
727 | fdchangecnt = 0; |
472 | } |
728 | } |
473 | |
729 | |
474 | static void |
730 | void inline_size |
475 | fd_change (EV_P_ int fd) |
731 | fd_change (EV_P_ int fd, int flags) |
476 | { |
732 | { |
477 | if (expect_false (anfds [fd].reify)) |
733 | unsigned char reify = anfds [fd].reify; |
478 | return; |
|
|
479 | |
|
|
480 | anfds [fd].reify = 1; |
734 | anfds [fd].reify |= flags; |
481 | |
735 | |
|
|
736 | if (expect_true (!reify)) |
|
|
737 | { |
482 | ++fdchangecnt; |
738 | ++fdchangecnt; |
483 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
739 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
484 | fdchanges [fdchangecnt - 1] = fd; |
740 | fdchanges [fdchangecnt - 1] = fd; |
|
|
741 | } |
485 | } |
742 | } |
486 | |
743 | |
487 | static void |
744 | void inline_speed |
488 | fd_kill (EV_P_ int fd) |
745 | fd_kill (EV_P_ int fd) |
489 | { |
746 | { |
490 | ev_io *w; |
747 | ev_io *w; |
491 | |
748 | |
492 | while ((w = (ev_io *)anfds [fd].head)) |
749 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
494 | ev_io_stop (EV_A_ w); |
751 | ev_io_stop (EV_A_ w); |
495 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
752 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
496 | } |
753 | } |
497 | } |
754 | } |
498 | |
755 | |
499 | inline int |
756 | int inline_size |
500 | fd_valid (int fd) |
757 | fd_valid (int fd) |
501 | { |
758 | { |
502 | #ifdef _WIN32 |
759 | #ifdef _WIN32 |
503 | return _get_osfhandle (fd) != -1; |
760 | return _get_osfhandle (fd) != -1; |
504 | #else |
761 | #else |
505 | return fcntl (fd, F_GETFD) != -1; |
762 | return fcntl (fd, F_GETFD) != -1; |
506 | #endif |
763 | #endif |
507 | } |
764 | } |
508 | |
765 | |
509 | /* called on EBADF to verify fds */ |
766 | /* called on EBADF to verify fds */ |
510 | static void |
767 | static void noinline |
511 | fd_ebadf (EV_P) |
768 | fd_ebadf (EV_P) |
512 | { |
769 | { |
513 | int fd; |
770 | int fd; |
514 | |
771 | |
515 | for (fd = 0; fd < anfdmax; ++fd) |
772 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
517 | if (!fd_valid (fd) == -1 && errno == EBADF) |
774 | if (!fd_valid (fd) == -1 && errno == EBADF) |
518 | fd_kill (EV_A_ fd); |
775 | fd_kill (EV_A_ fd); |
519 | } |
776 | } |
520 | |
777 | |
521 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
778 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
522 | static void |
779 | static void noinline |
523 | fd_enomem (EV_P) |
780 | fd_enomem (EV_P) |
524 | { |
781 | { |
525 | int fd; |
782 | int fd; |
526 | |
783 | |
527 | for (fd = anfdmax; fd--; ) |
784 | for (fd = anfdmax; fd--; ) |
… | |
… | |
531 | return; |
788 | return; |
532 | } |
789 | } |
533 | } |
790 | } |
534 | |
791 | |
535 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
792 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
536 | static void |
793 | static void noinline |
537 | fd_rearm_all (EV_P) |
794 | fd_rearm_all (EV_P) |
538 | { |
795 | { |
539 | int fd; |
796 | int fd; |
540 | |
797 | |
541 | /* this should be highly optimised to not do anything but set a flag */ |
|
|
542 | for (fd = 0; fd < anfdmax; ++fd) |
798 | for (fd = 0; fd < anfdmax; ++fd) |
543 | if (anfds [fd].events) |
799 | if (anfds [fd].events) |
544 | { |
800 | { |
545 | anfds [fd].events = 0; |
801 | anfds [fd].events = 0; |
546 | fd_change (EV_A_ fd); |
802 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
547 | } |
803 | } |
548 | } |
804 | } |
549 | |
805 | |
550 | /*****************************************************************************/ |
806 | /*****************************************************************************/ |
551 | |
807 | |
|
|
808 | /* |
|
|
809 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
|
|
810 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
|
|
811 | * the branching factor of the d-tree. |
|
|
812 | */ |
|
|
813 | |
|
|
814 | /* |
|
|
815 | * at the moment we allow libev the luxury of two heaps, |
|
|
816 | * a small-code-size 2-heap one and a ~1.5kb larger 4-heap |
|
|
817 | * which is more cache-efficient. |
|
|
818 | * the difference is about 5% with 50000+ watchers. |
|
|
819 | */ |
|
|
820 | #if EV_USE_4HEAP |
|
|
821 | |
|
|
822 | #define DHEAP 4 |
|
|
823 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
|
|
824 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
|
|
825 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
|
|
826 | |
|
|
827 | /* away from the root */ |
|
|
828 | void inline_speed |
|
|
829 | downheap (ANHE *heap, int N, int k) |
|
|
830 | { |
|
|
831 | ANHE he = heap [k]; |
|
|
832 | ANHE *E = heap + N + HEAP0; |
|
|
833 | |
|
|
834 | for (;;) |
|
|
835 | { |
|
|
836 | ev_tstamp minat; |
|
|
837 | ANHE *minpos; |
|
|
838 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
|
|
839 | |
|
|
840 | /* find minimum child */ |
|
|
841 | if (expect_true (pos + DHEAP - 1 < E)) |
|
|
842 | { |
|
|
843 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
844 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
845 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
846 | if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
847 | } |
|
|
848 | else if (pos < E) |
|
|
849 | { |
|
|
850 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
851 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
852 | if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
853 | if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
854 | } |
|
|
855 | else |
|
|
856 | break; |
|
|
857 | |
|
|
858 | if (ANHE_at (he) <= minat) |
|
|
859 | break; |
|
|
860 | |
|
|
861 | heap [k] = *minpos; |
|
|
862 | ev_active (ANHE_w (*minpos)) = k; |
|
|
863 | |
|
|
864 | k = minpos - heap; |
|
|
865 | } |
|
|
866 | |
|
|
867 | heap [k] = he; |
|
|
868 | ev_active (ANHE_w (he)) = k; |
|
|
869 | } |
|
|
870 | |
|
|
871 | #else /* 4HEAP */ |
|
|
872 | |
|
|
873 | #define HEAP0 1 |
|
|
874 | #define HPARENT(k) ((k) >> 1) |
|
|
875 | #define UPHEAP_DONE(p,k) (!(p)) |
|
|
876 | |
|
|
877 | /* away from the root */ |
|
|
878 | void inline_speed |
|
|
879 | downheap (ANHE *heap, int N, int k) |
|
|
880 | { |
|
|
881 | ANHE he = heap [k]; |
|
|
882 | |
|
|
883 | for (;;) |
|
|
884 | { |
|
|
885 | int c = k << 1; |
|
|
886 | |
|
|
887 | if (c > N + HEAP0 - 1) |
|
|
888 | break; |
|
|
889 | |
|
|
890 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
|
|
891 | ? 1 : 0; |
|
|
892 | |
|
|
893 | if (ANHE_at (he) <= ANHE_at (heap [c])) |
|
|
894 | break; |
|
|
895 | |
|
|
896 | heap [k] = heap [c]; |
|
|
897 | ev_active (ANHE_w (heap [k])) = k; |
|
|
898 | |
|
|
899 | k = c; |
|
|
900 | } |
|
|
901 | |
|
|
902 | heap [k] = he; |
|
|
903 | ev_active (ANHE_w (he)) = k; |
|
|
904 | } |
|
|
905 | #endif |
|
|
906 | |
|
|
907 | /* towards the root */ |
|
|
908 | void inline_speed |
|
|
909 | upheap (ANHE *heap, int k) |
|
|
910 | { |
|
|
911 | ANHE he = heap [k]; |
|
|
912 | |
|
|
913 | for (;;) |
|
|
914 | { |
|
|
915 | int p = HPARENT (k); |
|
|
916 | |
|
|
917 | if (UPHEAP_DONE (p, k) || ANHE_at (heap [p]) <= ANHE_at (he)) |
|
|
918 | break; |
|
|
919 | |
|
|
920 | heap [k] = heap [p]; |
|
|
921 | ev_active (ANHE_w (heap [k])) = k; |
|
|
922 | k = p; |
|
|
923 | } |
|
|
924 | |
|
|
925 | heap [k] = he; |
|
|
926 | ev_active (ANHE_w (he)) = k; |
|
|
927 | } |
|
|
928 | |
|
|
929 | void inline_size |
|
|
930 | adjustheap (ANHE *heap, int N, int k) |
|
|
931 | { |
|
|
932 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
|
|
933 | upheap (heap, k); |
|
|
934 | else |
|
|
935 | downheap (heap, N, k); |
|
|
936 | } |
|
|
937 | |
|
|
938 | /* rebuild the heap: this function is used only once and executed rarely */ |
|
|
939 | void inline_size |
|
|
940 | reheap (ANHE *heap, int N) |
|
|
941 | { |
|
|
942 | int i; |
|
|
943 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
|
|
944 | /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */ |
|
|
945 | for (i = 0; i < N; ++i) |
|
|
946 | upheap (heap, i + HEAP0); |
|
|
947 | } |
|
|
948 | |
|
|
949 | #if EV_VERIFY |
552 | static void |
950 | static void |
553 | upheap (WT *heap, int k) |
951 | checkheap (ANHE *heap, int N) |
554 | { |
952 | { |
555 | WT w = heap [k]; |
953 | int i; |
556 | |
954 | |
557 | while (k && heap [k >> 1]->at > w->at) |
955 | for (i = HEAP0; i < N + HEAP0; ++i) |
558 | { |
|
|
559 | heap [k] = heap [k >> 1]; |
|
|
560 | ((W)heap [k])->active = k + 1; |
|
|
561 | k >>= 1; |
|
|
562 | } |
956 | { |
563 | |
957 | assert (("active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
564 | heap [k] = w; |
958 | assert (("heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
565 | ((W)heap [k])->active = k + 1; |
959 | assert (("heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
566 | |
|
|
567 | } |
|
|
568 | |
|
|
569 | static void |
|
|
570 | downheap (WT *heap, int N, int k) |
|
|
571 | { |
|
|
572 | WT w = heap [k]; |
|
|
573 | |
|
|
574 | while (k < (N >> 1)) |
|
|
575 | { |
960 | } |
576 | int j = k << 1; |
|
|
577 | |
|
|
578 | if (j + 1 < N && heap [j]->at > heap [j + 1]->at) |
|
|
579 | ++j; |
|
|
580 | |
|
|
581 | if (w->at <= heap [j]->at) |
|
|
582 | break; |
|
|
583 | |
|
|
584 | heap [k] = heap [j]; |
|
|
585 | ((W)heap [k])->active = k + 1; |
|
|
586 | k = j; |
|
|
587 | } |
|
|
588 | |
|
|
589 | heap [k] = w; |
|
|
590 | ((W)heap [k])->active = k + 1; |
|
|
591 | } |
961 | } |
592 | |
962 | #endif |
593 | inline void |
|
|
594 | adjustheap (WT *heap, int N, int k) |
|
|
595 | { |
|
|
596 | upheap (heap, k); |
|
|
597 | downheap (heap, N, k); |
|
|
598 | } |
|
|
599 | |
963 | |
600 | /*****************************************************************************/ |
964 | /*****************************************************************************/ |
601 | |
965 | |
602 | typedef struct |
966 | typedef struct |
603 | { |
967 | { |
604 | WL head; |
968 | WL head; |
605 | sig_atomic_t volatile gotsig; |
969 | EV_ATOMIC_T gotsig; |
606 | } ANSIG; |
970 | } ANSIG; |
607 | |
971 | |
608 | static ANSIG *signals; |
972 | static ANSIG *signals; |
609 | static int signalmax; |
973 | static int signalmax; |
610 | |
974 | |
611 | static int sigpipe [2]; |
975 | static EV_ATOMIC_T gotsig; |
612 | static sig_atomic_t volatile gotsig; |
|
|
613 | static ev_io sigev; |
|
|
614 | |
976 | |
615 | static void |
977 | void inline_size |
616 | signals_init (ANSIG *base, int count) |
978 | signals_init (ANSIG *base, int count) |
617 | { |
979 | { |
618 | while (count--) |
980 | while (count--) |
619 | { |
981 | { |
620 | base->head = 0; |
982 | base->head = 0; |
… | |
… | |
622 | |
984 | |
623 | ++base; |
985 | ++base; |
624 | } |
986 | } |
625 | } |
987 | } |
626 | |
988 | |
627 | static void |
989 | /*****************************************************************************/ |
628 | sighandler (int signum) |
|
|
629 | { |
|
|
630 | #if _WIN32 |
|
|
631 | signal (signum, sighandler); |
|
|
632 | #endif |
|
|
633 | |
990 | |
634 | signals [signum - 1].gotsig = 1; |
991 | void inline_speed |
635 | |
|
|
636 | if (!gotsig) |
|
|
637 | { |
|
|
638 | int old_errno = errno; |
|
|
639 | gotsig = 1; |
|
|
640 | write (sigpipe [1], &signum, 1); |
|
|
641 | errno = old_errno; |
|
|
642 | } |
|
|
643 | } |
|
|
644 | |
|
|
645 | void |
|
|
646 | ev_feed_signal_event (EV_P_ int signum) |
|
|
647 | { |
|
|
648 | WL w; |
|
|
649 | |
|
|
650 | #if EV_MULTIPLICITY |
|
|
651 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
652 | #endif |
|
|
653 | |
|
|
654 | --signum; |
|
|
655 | |
|
|
656 | if (signum < 0 || signum >= signalmax) |
|
|
657 | return; |
|
|
658 | |
|
|
659 | signals [signum].gotsig = 0; |
|
|
660 | |
|
|
661 | for (w = signals [signum].head; w; w = w->next) |
|
|
662 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
663 | } |
|
|
664 | |
|
|
665 | static void |
|
|
666 | sigcb (EV_P_ ev_io *iow, int revents) |
|
|
667 | { |
|
|
668 | int signum; |
|
|
669 | |
|
|
670 | read (sigpipe [0], &revents, 1); |
|
|
671 | gotsig = 0; |
|
|
672 | |
|
|
673 | for (signum = signalmax; signum--; ) |
|
|
674 | if (signals [signum].gotsig) |
|
|
675 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
676 | } |
|
|
677 | |
|
|
678 | static void |
|
|
679 | fd_intern (int fd) |
992 | fd_intern (int fd) |
680 | { |
993 | { |
681 | #ifdef _WIN32 |
994 | #ifdef _WIN32 |
682 | int arg = 1; |
995 | int arg = 1; |
683 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
996 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
… | |
… | |
685 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
998 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
686 | fcntl (fd, F_SETFL, O_NONBLOCK); |
999 | fcntl (fd, F_SETFL, O_NONBLOCK); |
687 | #endif |
1000 | #endif |
688 | } |
1001 | } |
689 | |
1002 | |
|
|
1003 | static void noinline |
|
|
1004 | evpipe_init (EV_P) |
|
|
1005 | { |
|
|
1006 | if (!ev_is_active (&pipeev)) |
|
|
1007 | { |
|
|
1008 | #if EV_USE_EVENTFD |
|
|
1009 | if ((evfd = eventfd (0, 0)) >= 0) |
|
|
1010 | { |
|
|
1011 | evpipe [0] = -1; |
|
|
1012 | fd_intern (evfd); |
|
|
1013 | ev_io_set (&pipeev, evfd, EV_READ); |
|
|
1014 | } |
|
|
1015 | else |
|
|
1016 | #endif |
|
|
1017 | { |
|
|
1018 | while (pipe (evpipe)) |
|
|
1019 | syserr ("(libev) error creating signal/async pipe"); |
|
|
1020 | |
|
|
1021 | fd_intern (evpipe [0]); |
|
|
1022 | fd_intern (evpipe [1]); |
|
|
1023 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
|
|
1024 | } |
|
|
1025 | |
|
|
1026 | ev_io_start (EV_A_ &pipeev); |
|
|
1027 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
1028 | } |
|
|
1029 | } |
|
|
1030 | |
|
|
1031 | void inline_size |
|
|
1032 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1033 | { |
|
|
1034 | if (!*flag) |
|
|
1035 | { |
|
|
1036 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1037 | |
|
|
1038 | *flag = 1; |
|
|
1039 | |
|
|
1040 | #if EV_USE_EVENTFD |
|
|
1041 | if (evfd >= 0) |
|
|
1042 | { |
|
|
1043 | uint64_t counter = 1; |
|
|
1044 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
1045 | } |
|
|
1046 | else |
|
|
1047 | #endif |
|
|
1048 | write (evpipe [1], &old_errno, 1); |
|
|
1049 | |
|
|
1050 | errno = old_errno; |
|
|
1051 | } |
|
|
1052 | } |
|
|
1053 | |
690 | static void |
1054 | static void |
691 | siginit (EV_P) |
1055 | pipecb (EV_P_ ev_io *iow, int revents) |
692 | { |
1056 | { |
693 | fd_intern (sigpipe [0]); |
1057 | #if EV_USE_EVENTFD |
694 | fd_intern (sigpipe [1]); |
1058 | if (evfd >= 0) |
|
|
1059 | { |
|
|
1060 | uint64_t counter; |
|
|
1061 | read (evfd, &counter, sizeof (uint64_t)); |
|
|
1062 | } |
|
|
1063 | else |
|
|
1064 | #endif |
|
|
1065 | { |
|
|
1066 | char dummy; |
|
|
1067 | read (evpipe [0], &dummy, 1); |
|
|
1068 | } |
695 | |
1069 | |
696 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
1070 | if (gotsig && ev_is_default_loop (EV_A)) |
697 | ev_io_start (EV_A_ &sigev); |
1071 | { |
698 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1072 | int signum; |
|
|
1073 | gotsig = 0; |
|
|
1074 | |
|
|
1075 | for (signum = signalmax; signum--; ) |
|
|
1076 | if (signals [signum].gotsig) |
|
|
1077 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
1078 | } |
|
|
1079 | |
|
|
1080 | #if EV_ASYNC_ENABLE |
|
|
1081 | if (gotasync) |
|
|
1082 | { |
|
|
1083 | int i; |
|
|
1084 | gotasync = 0; |
|
|
1085 | |
|
|
1086 | for (i = asynccnt; i--; ) |
|
|
1087 | if (asyncs [i]->sent) |
|
|
1088 | { |
|
|
1089 | asyncs [i]->sent = 0; |
|
|
1090 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
|
|
1091 | } |
|
|
1092 | } |
|
|
1093 | #endif |
699 | } |
1094 | } |
700 | |
1095 | |
701 | /*****************************************************************************/ |
1096 | /*****************************************************************************/ |
702 | |
1097 | |
|
|
1098 | static void |
|
|
1099 | ev_sighandler (int signum) |
|
|
1100 | { |
|
|
1101 | #if EV_MULTIPLICITY |
|
|
1102 | struct ev_loop *loop = &default_loop_struct; |
|
|
1103 | #endif |
|
|
1104 | |
|
|
1105 | #if _WIN32 |
|
|
1106 | signal (signum, ev_sighandler); |
|
|
1107 | #endif |
|
|
1108 | |
|
|
1109 | signals [signum - 1].gotsig = 1; |
|
|
1110 | evpipe_write (EV_A_ &gotsig); |
|
|
1111 | } |
|
|
1112 | |
|
|
1113 | void noinline |
|
|
1114 | ev_feed_signal_event (EV_P_ int signum) |
|
|
1115 | { |
|
|
1116 | WL w; |
|
|
1117 | |
|
|
1118 | #if EV_MULTIPLICITY |
|
|
1119 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1120 | #endif |
|
|
1121 | |
|
|
1122 | --signum; |
|
|
1123 | |
|
|
1124 | if (signum < 0 || signum >= signalmax) |
|
|
1125 | return; |
|
|
1126 | |
|
|
1127 | signals [signum].gotsig = 0; |
|
|
1128 | |
|
|
1129 | for (w = signals [signum].head; w; w = w->next) |
|
|
1130 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
1131 | } |
|
|
1132 | |
|
|
1133 | /*****************************************************************************/ |
|
|
1134 | |
703 | static ev_child *childs [PID_HASHSIZE]; |
1135 | static WL childs [EV_PID_HASHSIZE]; |
704 | |
1136 | |
705 | #ifndef _WIN32 |
1137 | #ifndef _WIN32 |
706 | |
1138 | |
707 | static ev_signal childev; |
1139 | static ev_signal childev; |
|
|
1140 | |
|
|
1141 | #ifndef WIFCONTINUED |
|
|
1142 | # define WIFCONTINUED(status) 0 |
|
|
1143 | #endif |
|
|
1144 | |
|
|
1145 | void inline_speed |
|
|
1146 | child_reap (EV_P_ int chain, int pid, int status) |
|
|
1147 | { |
|
|
1148 | ev_child *w; |
|
|
1149 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
|
|
1150 | |
|
|
1151 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1152 | { |
|
|
1153 | if ((w->pid == pid || !w->pid) |
|
|
1154 | && (!traced || (w->flags & 1))) |
|
|
1155 | { |
|
|
1156 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
|
|
1157 | w->rpid = pid; |
|
|
1158 | w->rstatus = status; |
|
|
1159 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
|
|
1160 | } |
|
|
1161 | } |
|
|
1162 | } |
708 | |
1163 | |
709 | #ifndef WCONTINUED |
1164 | #ifndef WCONTINUED |
710 | # define WCONTINUED 0 |
1165 | # define WCONTINUED 0 |
711 | #endif |
1166 | #endif |
712 | |
1167 | |
713 | static void |
1168 | static void |
714 | child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) |
|
|
715 | { |
|
|
716 | ev_child *w; |
|
|
717 | |
|
|
718 | for (w = (ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
719 | if (w->pid == pid || !w->pid) |
|
|
720 | { |
|
|
721 | ev_priority (w) = ev_priority (sw); /* need to do it *now* */ |
|
|
722 | w->rpid = pid; |
|
|
723 | w->rstatus = status; |
|
|
724 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
|
|
725 | } |
|
|
726 | } |
|
|
727 | |
|
|
728 | static void |
|
|
729 | childcb (EV_P_ ev_signal *sw, int revents) |
1169 | childcb (EV_P_ ev_signal *sw, int revents) |
730 | { |
1170 | { |
731 | int pid, status; |
1171 | int pid, status; |
732 | |
1172 | |
|
|
1173 | /* some systems define WCONTINUED but then fail to support it (linux 2.4) */ |
733 | if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
1174 | if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
734 | { |
1175 | if (!WCONTINUED |
|
|
1176 | || errno != EINVAL |
|
|
1177 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
|
|
1178 | return; |
|
|
1179 | |
735 | /* make sure we are called again until all childs have been reaped */ |
1180 | /* make sure we are called again until all children have been reaped */ |
736 | /* we need to do it this way so that the callback gets called before we continue */ |
1181 | /* we need to do it this way so that the callback gets called before we continue */ |
737 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1182 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
738 | |
1183 | |
739 | child_reap (EV_A_ sw, pid, pid, status); |
1184 | child_reap (EV_A_ pid, pid, status); |
|
|
1185 | if (EV_PID_HASHSIZE > 1) |
740 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1186 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
741 | } |
|
|
742 | } |
1187 | } |
743 | |
1188 | |
744 | #endif |
1189 | #endif |
745 | |
1190 | |
746 | /*****************************************************************************/ |
1191 | /*****************************************************************************/ |
… | |
… | |
772 | { |
1217 | { |
773 | return EV_VERSION_MINOR; |
1218 | return EV_VERSION_MINOR; |
774 | } |
1219 | } |
775 | |
1220 | |
776 | /* return true if we are running with elevated privileges and should ignore env variables */ |
1221 | /* return true if we are running with elevated privileges and should ignore env variables */ |
777 | static int |
1222 | int inline_size |
778 | enable_secure (void) |
1223 | enable_secure (void) |
779 | { |
1224 | { |
780 | #ifdef _WIN32 |
1225 | #ifdef _WIN32 |
781 | return 0; |
1226 | return 0; |
782 | #else |
1227 | #else |
… | |
… | |
818 | } |
1263 | } |
819 | |
1264 | |
820 | unsigned int |
1265 | unsigned int |
821 | ev_embeddable_backends (void) |
1266 | ev_embeddable_backends (void) |
822 | { |
1267 | { |
823 | return EVBACKEND_EPOLL |
1268 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
824 | | EVBACKEND_KQUEUE |
1269 | |
825 | | EVBACKEND_PORT; |
1270 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
|
|
1271 | /* please fix it and tell me how to detect the fix */ |
|
|
1272 | flags &= ~EVBACKEND_EPOLL; |
|
|
1273 | |
|
|
1274 | return flags; |
826 | } |
1275 | } |
827 | |
1276 | |
828 | unsigned int |
1277 | unsigned int |
829 | ev_backend (EV_P) |
1278 | ev_backend (EV_P) |
830 | { |
1279 | { |
831 | return backend; |
1280 | return backend; |
832 | } |
1281 | } |
833 | |
1282 | |
834 | static void |
1283 | unsigned int |
|
|
1284 | ev_loop_count (EV_P) |
|
|
1285 | { |
|
|
1286 | return loop_count; |
|
|
1287 | } |
|
|
1288 | |
|
|
1289 | void |
|
|
1290 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1291 | { |
|
|
1292 | io_blocktime = interval; |
|
|
1293 | } |
|
|
1294 | |
|
|
1295 | void |
|
|
1296 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1297 | { |
|
|
1298 | timeout_blocktime = interval; |
|
|
1299 | } |
|
|
1300 | |
|
|
1301 | static void noinline |
835 | loop_init (EV_P_ unsigned int flags) |
1302 | loop_init (EV_P_ unsigned int flags) |
836 | { |
1303 | { |
837 | if (!backend) |
1304 | if (!backend) |
838 | { |
1305 | { |
839 | #if EV_USE_MONOTONIC |
1306 | #if EV_USE_MONOTONIC |
… | |
… | |
842 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1309 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
843 | have_monotonic = 1; |
1310 | have_monotonic = 1; |
844 | } |
1311 | } |
845 | #endif |
1312 | #endif |
846 | |
1313 | |
847 | ev_rt_now = ev_time (); |
1314 | ev_rt_now = ev_time (); |
848 | mn_now = get_clock (); |
1315 | mn_now = get_clock (); |
849 | now_floor = mn_now; |
1316 | now_floor = mn_now; |
850 | rtmn_diff = ev_rt_now - mn_now; |
1317 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1318 | |
|
|
1319 | io_blocktime = 0.; |
|
|
1320 | timeout_blocktime = 0.; |
|
|
1321 | backend = 0; |
|
|
1322 | backend_fd = -1; |
|
|
1323 | gotasync = 0; |
|
|
1324 | #if EV_USE_INOTIFY |
|
|
1325 | fs_fd = -2; |
|
|
1326 | #endif |
|
|
1327 | |
|
|
1328 | /* pid check not overridable via env */ |
|
|
1329 | #ifndef _WIN32 |
|
|
1330 | if (flags & EVFLAG_FORKCHECK) |
|
|
1331 | curpid = getpid (); |
|
|
1332 | #endif |
851 | |
1333 | |
852 | if (!(flags & EVFLAG_NOENV) |
1334 | if (!(flags & EVFLAG_NOENV) |
853 | && !enable_secure () |
1335 | && !enable_secure () |
854 | && getenv ("LIBEV_FLAGS")) |
1336 | && getenv ("LIBEV_FLAGS")) |
855 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1337 | flags = atoi (getenv ("LIBEV_FLAGS")); |
856 | |
1338 | |
857 | if (!(flags & 0x0000ffffUL)) |
1339 | if (!(flags & 0x0000ffffU)) |
858 | flags |= ev_recommended_backends (); |
1340 | flags |= ev_recommended_backends (); |
859 | |
1341 | |
860 | backend = 0; |
|
|
861 | #if EV_USE_PORT |
1342 | #if EV_USE_PORT |
862 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1343 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
863 | #endif |
1344 | #endif |
864 | #if EV_USE_KQUEUE |
1345 | #if EV_USE_KQUEUE |
865 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
1346 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
… | |
… | |
872 | #endif |
1353 | #endif |
873 | #if EV_USE_SELECT |
1354 | #if EV_USE_SELECT |
874 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1355 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
875 | #endif |
1356 | #endif |
876 | |
1357 | |
877 | ev_init (&sigev, sigcb); |
1358 | ev_init (&pipeev, pipecb); |
878 | ev_set_priority (&sigev, EV_MAXPRI); |
1359 | ev_set_priority (&pipeev, EV_MAXPRI); |
879 | } |
1360 | } |
880 | } |
1361 | } |
881 | |
1362 | |
882 | static void |
1363 | static void noinline |
883 | loop_destroy (EV_P) |
1364 | loop_destroy (EV_P) |
884 | { |
1365 | { |
885 | int i; |
1366 | int i; |
|
|
1367 | |
|
|
1368 | if (ev_is_active (&pipeev)) |
|
|
1369 | { |
|
|
1370 | ev_ref (EV_A); /* signal watcher */ |
|
|
1371 | ev_io_stop (EV_A_ &pipeev); |
|
|
1372 | |
|
|
1373 | #if EV_USE_EVENTFD |
|
|
1374 | if (evfd >= 0) |
|
|
1375 | close (evfd); |
|
|
1376 | #endif |
|
|
1377 | |
|
|
1378 | if (evpipe [0] >= 0) |
|
|
1379 | { |
|
|
1380 | close (evpipe [0]); |
|
|
1381 | close (evpipe [1]); |
|
|
1382 | } |
|
|
1383 | } |
|
|
1384 | |
|
|
1385 | #if EV_USE_INOTIFY |
|
|
1386 | if (fs_fd >= 0) |
|
|
1387 | close (fs_fd); |
|
|
1388 | #endif |
|
|
1389 | |
|
|
1390 | if (backend_fd >= 0) |
|
|
1391 | close (backend_fd); |
886 | |
1392 | |
887 | #if EV_USE_PORT |
1393 | #if EV_USE_PORT |
888 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
1394 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
889 | #endif |
1395 | #endif |
890 | #if EV_USE_KQUEUE |
1396 | #if EV_USE_KQUEUE |
… | |
… | |
899 | #if EV_USE_SELECT |
1405 | #if EV_USE_SELECT |
900 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
1406 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
901 | #endif |
1407 | #endif |
902 | |
1408 | |
903 | for (i = NUMPRI; i--; ) |
1409 | for (i = NUMPRI; i--; ) |
|
|
1410 | { |
904 | array_free (pending, [i]); |
1411 | array_free (pending, [i]); |
|
|
1412 | #if EV_IDLE_ENABLE |
|
|
1413 | array_free (idle, [i]); |
|
|
1414 | #endif |
|
|
1415 | } |
|
|
1416 | |
|
|
1417 | ev_free (anfds); anfdmax = 0; |
905 | |
1418 | |
906 | /* have to use the microsoft-never-gets-it-right macro */ |
1419 | /* have to use the microsoft-never-gets-it-right macro */ |
907 | array_free (fdchange, EMPTY0); |
1420 | array_free (fdchange, EMPTY); |
908 | array_free (timer, EMPTY0); |
1421 | array_free (timer, EMPTY); |
909 | #if EV_PERIODICS |
1422 | #if EV_PERIODIC_ENABLE |
910 | array_free (periodic, EMPTY0); |
1423 | array_free (periodic, EMPTY); |
911 | #endif |
1424 | #endif |
|
|
1425 | #if EV_FORK_ENABLE |
912 | array_free (idle, EMPTY0); |
1426 | array_free (fork, EMPTY); |
|
|
1427 | #endif |
913 | array_free (prepare, EMPTY0); |
1428 | array_free (prepare, EMPTY); |
914 | array_free (check, EMPTY0); |
1429 | array_free (check, EMPTY); |
|
|
1430 | #if EV_ASYNC_ENABLE |
|
|
1431 | array_free (async, EMPTY); |
|
|
1432 | #endif |
915 | |
1433 | |
916 | backend = 0; |
1434 | backend = 0; |
917 | } |
1435 | } |
918 | |
1436 | |
919 | static void |
1437 | #if EV_USE_INOTIFY |
|
|
1438 | void inline_size infy_fork (EV_P); |
|
|
1439 | #endif |
|
|
1440 | |
|
|
1441 | void inline_size |
920 | loop_fork (EV_P) |
1442 | loop_fork (EV_P) |
921 | { |
1443 | { |
922 | #if EV_USE_PORT |
1444 | #if EV_USE_PORT |
923 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1445 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
924 | #endif |
1446 | #endif |
… | |
… | |
926 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
1448 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
927 | #endif |
1449 | #endif |
928 | #if EV_USE_EPOLL |
1450 | #if EV_USE_EPOLL |
929 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
1451 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
930 | #endif |
1452 | #endif |
|
|
1453 | #if EV_USE_INOTIFY |
|
|
1454 | infy_fork (EV_A); |
|
|
1455 | #endif |
931 | |
1456 | |
932 | if (ev_is_active (&sigev)) |
1457 | if (ev_is_active (&pipeev)) |
933 | { |
1458 | { |
934 | /* default loop */ |
1459 | /* this "locks" the handlers against writing to the pipe */ |
|
|
1460 | /* while we modify the fd vars */ |
|
|
1461 | gotsig = 1; |
|
|
1462 | #if EV_ASYNC_ENABLE |
|
|
1463 | gotasync = 1; |
|
|
1464 | #endif |
935 | |
1465 | |
936 | ev_ref (EV_A); |
1466 | ev_ref (EV_A); |
937 | ev_io_stop (EV_A_ &sigev); |
1467 | ev_io_stop (EV_A_ &pipeev); |
|
|
1468 | |
|
|
1469 | #if EV_USE_EVENTFD |
|
|
1470 | if (evfd >= 0) |
|
|
1471 | close (evfd); |
|
|
1472 | #endif |
|
|
1473 | |
|
|
1474 | if (evpipe [0] >= 0) |
|
|
1475 | { |
938 | close (sigpipe [0]); |
1476 | close (evpipe [0]); |
939 | close (sigpipe [1]); |
1477 | close (evpipe [1]); |
|
|
1478 | } |
940 | |
1479 | |
941 | while (pipe (sigpipe)) |
|
|
942 | syserr ("(libev) error creating pipe"); |
|
|
943 | |
|
|
944 | siginit (EV_A); |
1480 | evpipe_init (EV_A); |
|
|
1481 | /* now iterate over everything, in case we missed something */ |
|
|
1482 | pipecb (EV_A_ &pipeev, EV_READ); |
945 | } |
1483 | } |
946 | |
1484 | |
947 | postfork = 0; |
1485 | postfork = 0; |
948 | } |
1486 | } |
949 | |
1487 | |
… | |
… | |
971 | } |
1509 | } |
972 | |
1510 | |
973 | void |
1511 | void |
974 | ev_loop_fork (EV_P) |
1512 | ev_loop_fork (EV_P) |
975 | { |
1513 | { |
976 | postfork = 1; |
1514 | postfork = 1; /* must be in line with ev_default_fork */ |
977 | } |
1515 | } |
|
|
1516 | |
|
|
1517 | #if EV_VERIFY |
|
|
1518 | static void |
|
|
1519 | array_check (W **ws, int cnt) |
|
|
1520 | { |
|
|
1521 | while (cnt--) |
|
|
1522 | assert (("active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
|
|
1523 | } |
|
|
1524 | |
|
|
1525 | static void |
|
|
1526 | ev_loop_verify (EV_P) |
|
|
1527 | { |
|
|
1528 | int i; |
|
|
1529 | |
|
|
1530 | checkheap (timers, timercnt); |
|
|
1531 | #if EV_PERIODIC_ENABLE |
|
|
1532 | checkheap (periodics, periodiccnt); |
|
|
1533 | #endif |
|
|
1534 | |
|
|
1535 | #if EV_IDLE_ENABLE |
|
|
1536 | for (i = NUMPRI; i--; ) |
|
|
1537 | array_check ((W **)idles [i], idlecnt [i]); |
|
|
1538 | #endif |
|
|
1539 | #if EV_FORK_ENABLE |
|
|
1540 | array_check ((W **)forks, forkcnt); |
|
|
1541 | #endif |
|
|
1542 | array_check ((W **)prepares, preparecnt); |
|
|
1543 | array_check ((W **)checks, checkcnt); |
|
|
1544 | #if EV_ASYNC_ENABLE |
|
|
1545 | array_check ((W **)asyncs, asynccnt); |
|
|
1546 | #endif |
|
|
1547 | } |
|
|
1548 | #endif |
978 | |
1549 | |
979 | #endif |
1550 | #endif |
980 | |
1551 | |
981 | #if EV_MULTIPLICITY |
1552 | #if EV_MULTIPLICITY |
982 | struct ev_loop * |
1553 | struct ev_loop * |
… | |
… | |
984 | #else |
1555 | #else |
985 | int |
1556 | int |
986 | ev_default_loop (unsigned int flags) |
1557 | ev_default_loop (unsigned int flags) |
987 | #endif |
1558 | #endif |
988 | { |
1559 | { |
989 | if (sigpipe [0] == sigpipe [1]) |
|
|
990 | if (pipe (sigpipe)) |
|
|
991 | return 0; |
|
|
992 | |
|
|
993 | if (!ev_default_loop_ptr) |
1560 | if (!ev_default_loop_ptr) |
994 | { |
1561 | { |
995 | #if EV_MULTIPLICITY |
1562 | #if EV_MULTIPLICITY |
996 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1563 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
997 | #else |
1564 | #else |
… | |
… | |
1000 | |
1567 | |
1001 | loop_init (EV_A_ flags); |
1568 | loop_init (EV_A_ flags); |
1002 | |
1569 | |
1003 | if (ev_backend (EV_A)) |
1570 | if (ev_backend (EV_A)) |
1004 | { |
1571 | { |
1005 | siginit (EV_A); |
|
|
1006 | |
|
|
1007 | #ifndef _WIN32 |
1572 | #ifndef _WIN32 |
1008 | ev_signal_init (&childev, childcb, SIGCHLD); |
1573 | ev_signal_init (&childev, childcb, SIGCHLD); |
1009 | ev_set_priority (&childev, EV_MAXPRI); |
1574 | ev_set_priority (&childev, EV_MAXPRI); |
1010 | ev_signal_start (EV_A_ &childev); |
1575 | ev_signal_start (EV_A_ &childev); |
1011 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1576 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
… | |
… | |
1028 | #ifndef _WIN32 |
1593 | #ifndef _WIN32 |
1029 | ev_ref (EV_A); /* child watcher */ |
1594 | ev_ref (EV_A); /* child watcher */ |
1030 | ev_signal_stop (EV_A_ &childev); |
1595 | ev_signal_stop (EV_A_ &childev); |
1031 | #endif |
1596 | #endif |
1032 | |
1597 | |
1033 | ev_ref (EV_A); /* signal watcher */ |
|
|
1034 | ev_io_stop (EV_A_ &sigev); |
|
|
1035 | |
|
|
1036 | close (sigpipe [0]); sigpipe [0] = 0; |
|
|
1037 | close (sigpipe [1]); sigpipe [1] = 0; |
|
|
1038 | |
|
|
1039 | loop_destroy (EV_A); |
1598 | loop_destroy (EV_A); |
1040 | } |
1599 | } |
1041 | |
1600 | |
1042 | void |
1601 | void |
1043 | ev_default_fork (void) |
1602 | ev_default_fork (void) |
… | |
… | |
1045 | #if EV_MULTIPLICITY |
1604 | #if EV_MULTIPLICITY |
1046 | struct ev_loop *loop = ev_default_loop_ptr; |
1605 | struct ev_loop *loop = ev_default_loop_ptr; |
1047 | #endif |
1606 | #endif |
1048 | |
1607 | |
1049 | if (backend) |
1608 | if (backend) |
1050 | postfork = 1; |
1609 | postfork = 1; /* must be in line with ev_loop_fork */ |
1051 | } |
1610 | } |
1052 | |
1611 | |
1053 | /*****************************************************************************/ |
1612 | /*****************************************************************************/ |
1054 | |
1613 | |
1055 | static int |
1614 | void |
|
|
1615 | ev_invoke (EV_P_ void *w, int revents) |
|
|
1616 | { |
|
|
1617 | EV_CB_INVOKE ((W)w, revents); |
|
|
1618 | } |
|
|
1619 | |
|
|
1620 | void inline_speed |
1056 | any_pending (EV_P) |
1621 | call_pending (EV_P) |
1057 | { |
1622 | { |
1058 | int pri; |
1623 | int pri; |
1059 | |
1624 | |
1060 | for (pri = NUMPRI; pri--; ) |
1625 | EV_FREQUENT_CHECK; |
1061 | if (pendingcnt [pri]) |
|
|
1062 | return 1; |
|
|
1063 | |
|
|
1064 | return 0; |
|
|
1065 | } |
|
|
1066 | |
|
|
1067 | inline void |
|
|
1068 | call_pending (EV_P) |
|
|
1069 | { |
|
|
1070 | int pri; |
|
|
1071 | |
1626 | |
1072 | for (pri = NUMPRI; pri--; ) |
1627 | for (pri = NUMPRI; pri--; ) |
1073 | while (pendingcnt [pri]) |
1628 | while (pendingcnt [pri]) |
1074 | { |
1629 | { |
1075 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1630 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1076 | |
1631 | |
1077 | if (expect_true (p->w)) |
1632 | if (expect_true (p->w)) |
1078 | { |
1633 | { |
|
|
1634 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
|
|
1635 | |
1079 | p->w->pending = 0; |
1636 | p->w->pending = 0; |
1080 | EV_CB_INVOKE (p->w, p->events); |
1637 | EV_CB_INVOKE (p->w, p->events); |
1081 | } |
1638 | } |
1082 | } |
1639 | } |
1083 | } |
|
|
1084 | |
1640 | |
1085 | inline void |
1641 | EV_FREQUENT_CHECK; |
|
|
1642 | } |
|
|
1643 | |
|
|
1644 | #if EV_IDLE_ENABLE |
|
|
1645 | void inline_size |
|
|
1646 | idle_reify (EV_P) |
|
|
1647 | { |
|
|
1648 | if (expect_false (idleall)) |
|
|
1649 | { |
|
|
1650 | int pri; |
|
|
1651 | |
|
|
1652 | for (pri = NUMPRI; pri--; ) |
|
|
1653 | { |
|
|
1654 | if (pendingcnt [pri]) |
|
|
1655 | break; |
|
|
1656 | |
|
|
1657 | if (idlecnt [pri]) |
|
|
1658 | { |
|
|
1659 | queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE); |
|
|
1660 | break; |
|
|
1661 | } |
|
|
1662 | } |
|
|
1663 | } |
|
|
1664 | } |
|
|
1665 | #endif |
|
|
1666 | |
|
|
1667 | void inline_size |
1086 | timers_reify (EV_P) |
1668 | timers_reify (EV_P) |
1087 | { |
1669 | { |
|
|
1670 | EV_FREQUENT_CHECK; |
|
|
1671 | |
1088 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
1672 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
1089 | { |
1673 | { |
1090 | ev_timer *w = timers [0]; |
1674 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
1091 | |
1675 | |
1092 | assert (("inactive timer on timer heap detected", ev_is_active (w))); |
1676 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
1093 | |
1677 | |
1094 | /* first reschedule or stop timer */ |
1678 | /* first reschedule or stop timer */ |
1095 | if (w->repeat) |
1679 | if (w->repeat) |
1096 | { |
1680 | { |
|
|
1681 | ev_at (w) += w->repeat; |
|
|
1682 | if (ev_at (w) < mn_now) |
|
|
1683 | ev_at (w) = mn_now; |
|
|
1684 | |
1097 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1685 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1098 | |
1686 | |
1099 | ((WT)w)->at += w->repeat; |
1687 | ANHE_at_cache (timers [HEAP0]); |
1100 | if (((WT)w)->at < mn_now) |
|
|
1101 | ((WT)w)->at = mn_now; |
|
|
1102 | |
|
|
1103 | downheap ((WT *)timers, timercnt, 0); |
1688 | downheap (timers, timercnt, HEAP0); |
1104 | } |
1689 | } |
1105 | else |
1690 | else |
1106 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1691 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1107 | |
1692 | |
|
|
1693 | EV_FREQUENT_CHECK; |
1108 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
1694 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
1109 | } |
1695 | } |
1110 | } |
1696 | } |
1111 | |
1697 | |
1112 | #if EV_PERIODICS |
1698 | #if EV_PERIODIC_ENABLE |
1113 | inline void |
1699 | void inline_size |
1114 | periodics_reify (EV_P) |
1700 | periodics_reify (EV_P) |
1115 | { |
1701 | { |
|
|
1702 | EV_FREQUENT_CHECK; |
1116 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
1703 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
1117 | { |
1704 | { |
1118 | ev_periodic *w = periodics [0]; |
1705 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
1119 | |
1706 | |
1120 | assert (("inactive timer on periodic heap detected", ev_is_active (w))); |
1707 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
1121 | |
1708 | |
1122 | /* first reschedule or stop timer */ |
1709 | /* first reschedule or stop timer */ |
1123 | if (w->reschedule_cb) |
1710 | if (w->reschedule_cb) |
1124 | { |
1711 | { |
1125 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); |
1712 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
1713 | |
1126 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
1714 | assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
|
|
1715 | |
|
|
1716 | ANHE_at_cache (periodics [HEAP0]); |
1127 | downheap ((WT *)periodics, periodiccnt, 0); |
1717 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1718 | EV_FREQUENT_CHECK; |
1128 | } |
1719 | } |
1129 | else if (w->interval) |
1720 | else if (w->interval) |
1130 | { |
1721 | { |
1131 | ((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
1722 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1132 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
1723 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
1724 | /* this might happen because of floating point inexactness */ |
|
|
1725 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
1726 | { |
|
|
1727 | ev_at (w) += w->interval; |
|
|
1728 | |
|
|
1729 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
1730 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
1731 | /* has effectively asked to get triggered more often than possible */ |
|
|
1732 | if (ev_at (w) < ev_rt_now) |
|
|
1733 | ev_at (w) = ev_rt_now; |
|
|
1734 | } |
|
|
1735 | |
|
|
1736 | ANHE_at_cache (periodics [HEAP0]); |
1133 | downheap ((WT *)periodics, periodiccnt, 0); |
1737 | downheap (periodics, periodiccnt, HEAP0); |
1134 | } |
1738 | } |
1135 | else |
1739 | else |
1136 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1740 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1137 | |
1741 | |
|
|
1742 | EV_FREQUENT_CHECK; |
1138 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
1743 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
1139 | } |
1744 | } |
1140 | } |
1745 | } |
1141 | |
1746 | |
1142 | static void |
1747 | static void noinline |
1143 | periodics_reschedule (EV_P) |
1748 | periodics_reschedule (EV_P) |
1144 | { |
1749 | { |
1145 | int i; |
1750 | int i; |
1146 | |
1751 | |
1147 | /* adjust periodics after time jump */ |
1752 | /* adjust periodics after time jump */ |
1148 | for (i = 0; i < periodiccnt; ++i) |
1753 | for (i = HEAP0; i < periodiccnt + HEAP0; ++i) |
1149 | { |
1754 | { |
1150 | ev_periodic *w = periodics [i]; |
1755 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
1151 | |
1756 | |
1152 | if (w->reschedule_cb) |
1757 | if (w->reschedule_cb) |
1153 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1758 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1154 | else if (w->interval) |
1759 | else if (w->interval) |
1155 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1760 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1761 | |
|
|
1762 | ANHE_at_cache (periodics [i]); |
|
|
1763 | } |
|
|
1764 | |
|
|
1765 | reheap (periodics, periodiccnt); |
|
|
1766 | } |
|
|
1767 | #endif |
|
|
1768 | |
|
|
1769 | void inline_speed |
|
|
1770 | time_update (EV_P_ ev_tstamp max_block) |
|
|
1771 | { |
|
|
1772 | int i; |
|
|
1773 | |
|
|
1774 | #if EV_USE_MONOTONIC |
|
|
1775 | if (expect_true (have_monotonic)) |
1156 | } |
1776 | { |
|
|
1777 | ev_tstamp odiff = rtmn_diff; |
1157 | |
1778 | |
1158 | /* now rebuild the heap */ |
|
|
1159 | for (i = periodiccnt >> 1; i--; ) |
|
|
1160 | downheap ((WT *)periodics, periodiccnt, i); |
|
|
1161 | } |
|
|
1162 | #endif |
|
|
1163 | |
|
|
1164 | inline int |
|
|
1165 | time_update_monotonic (EV_P) |
|
|
1166 | { |
|
|
1167 | mn_now = get_clock (); |
1779 | mn_now = get_clock (); |
1168 | |
1780 | |
|
|
1781 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
|
|
1782 | /* interpolate in the meantime */ |
1169 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1783 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1170 | { |
1784 | { |
1171 | ev_rt_now = rtmn_diff + mn_now; |
1785 | ev_rt_now = rtmn_diff + mn_now; |
1172 | return 0; |
1786 | return; |
1173 | } |
1787 | } |
1174 | else |
1788 | |
1175 | { |
|
|
1176 | now_floor = mn_now; |
1789 | now_floor = mn_now; |
1177 | ev_rt_now = ev_time (); |
1790 | ev_rt_now = ev_time (); |
1178 | return 1; |
|
|
1179 | } |
|
|
1180 | } |
|
|
1181 | |
1791 | |
1182 | inline void |
1792 | /* loop a few times, before making important decisions. |
1183 | time_update (EV_P) |
1793 | * on the choice of "4": one iteration isn't enough, |
1184 | { |
1794 | * in case we get preempted during the calls to |
1185 | int i; |
1795 | * ev_time and get_clock. a second call is almost guaranteed |
1186 | |
1796 | * to succeed in that case, though. and looping a few more times |
1187 | #if EV_USE_MONOTONIC |
1797 | * doesn't hurt either as we only do this on time-jumps or |
1188 | if (expect_true (have_monotonic)) |
1798 | * in the unlikely event of having been preempted here. |
1189 | { |
1799 | */ |
1190 | if (time_update_monotonic (EV_A)) |
1800 | for (i = 4; --i; ) |
1191 | { |
1801 | { |
1192 | ev_tstamp odiff = rtmn_diff; |
1802 | rtmn_diff = ev_rt_now - mn_now; |
1193 | |
1803 | |
1194 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
1804 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
|
|
1805 | return; /* all is well */ |
|
|
1806 | |
|
|
1807 | ev_rt_now = ev_time (); |
|
|
1808 | mn_now = get_clock (); |
|
|
1809 | now_floor = mn_now; |
|
|
1810 | } |
|
|
1811 | |
|
|
1812 | # if EV_PERIODIC_ENABLE |
|
|
1813 | periodics_reschedule (EV_A); |
|
|
1814 | # endif |
|
|
1815 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1816 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1817 | } |
|
|
1818 | else |
|
|
1819 | #endif |
|
|
1820 | { |
|
|
1821 | ev_rt_now = ev_time (); |
|
|
1822 | |
|
|
1823 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
|
|
1824 | { |
|
|
1825 | #if EV_PERIODIC_ENABLE |
|
|
1826 | periodics_reschedule (EV_A); |
|
|
1827 | #endif |
|
|
1828 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1829 | for (i = 0; i < timercnt; ++i) |
1195 | { |
1830 | { |
1196 | rtmn_diff = ev_rt_now - mn_now; |
1831 | ANHE *he = timers + i + HEAP0; |
1197 | |
1832 | ANHE_w (*he)->at += ev_rt_now - mn_now; |
1198 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1833 | ANHE_at_cache (*he); |
1199 | return; /* all is well */ |
|
|
1200 | |
|
|
1201 | ev_rt_now = ev_time (); |
|
|
1202 | mn_now = get_clock (); |
|
|
1203 | now_floor = mn_now; |
|
|
1204 | } |
1834 | } |
1205 | |
|
|
1206 | # if EV_PERIODICS |
|
|
1207 | periodics_reschedule (EV_A); |
|
|
1208 | # endif |
|
|
1209 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1210 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1211 | } |
1835 | } |
1212 | } |
|
|
1213 | else |
|
|
1214 | #endif |
|
|
1215 | { |
|
|
1216 | ev_rt_now = ev_time (); |
|
|
1217 | |
|
|
1218 | if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
|
|
1219 | { |
|
|
1220 | #if EV_PERIODICS |
|
|
1221 | periodics_reschedule (EV_A); |
|
|
1222 | #endif |
|
|
1223 | |
|
|
1224 | /* adjust timers. this is easy, as the offset is the same for all */ |
|
|
1225 | for (i = 0; i < timercnt; ++i) |
|
|
1226 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
|
|
1227 | } |
|
|
1228 | |
1836 | |
1229 | mn_now = ev_rt_now; |
1837 | mn_now = ev_rt_now; |
1230 | } |
1838 | } |
1231 | } |
1839 | } |
1232 | |
1840 | |
… | |
… | |
1245 | static int loop_done; |
1853 | static int loop_done; |
1246 | |
1854 | |
1247 | void |
1855 | void |
1248 | ev_loop (EV_P_ int flags) |
1856 | ev_loop (EV_P_ int flags) |
1249 | { |
1857 | { |
1250 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) |
1858 | loop_done = EVUNLOOP_CANCEL; |
1251 | ? EVUNLOOP_ONE |
|
|
1252 | : EVUNLOOP_CANCEL; |
|
|
1253 | |
1859 | |
1254 | while (activecnt) |
1860 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
|
|
1861 | |
|
|
1862 | do |
1255 | { |
1863 | { |
|
|
1864 | #ifndef _WIN32 |
|
|
1865 | if (expect_false (curpid)) /* penalise the forking check even more */ |
|
|
1866 | if (expect_false (getpid () != curpid)) |
|
|
1867 | { |
|
|
1868 | curpid = getpid (); |
|
|
1869 | postfork = 1; |
|
|
1870 | } |
|
|
1871 | #endif |
|
|
1872 | |
|
|
1873 | #if EV_FORK_ENABLE |
|
|
1874 | /* we might have forked, so queue fork handlers */ |
|
|
1875 | if (expect_false (postfork)) |
|
|
1876 | if (forkcnt) |
|
|
1877 | { |
|
|
1878 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
|
|
1879 | call_pending (EV_A); |
|
|
1880 | } |
|
|
1881 | #endif |
|
|
1882 | |
1256 | /* queue check watchers (and execute them) */ |
1883 | /* queue prepare watchers (and execute them) */ |
1257 | if (expect_false (preparecnt)) |
1884 | if (expect_false (preparecnt)) |
1258 | { |
1885 | { |
1259 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1886 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1260 | call_pending (EV_A); |
1887 | call_pending (EV_A); |
1261 | } |
1888 | } |
1262 | |
1889 | |
|
|
1890 | if (expect_false (!activecnt)) |
|
|
1891 | break; |
|
|
1892 | |
1263 | /* we might have forked, so reify kernel state if necessary */ |
1893 | /* we might have forked, so reify kernel state if necessary */ |
1264 | if (expect_false (postfork)) |
1894 | if (expect_false (postfork)) |
1265 | loop_fork (EV_A); |
1895 | loop_fork (EV_A); |
1266 | |
1896 | |
1267 | /* update fd-related kernel structures */ |
1897 | /* update fd-related kernel structures */ |
1268 | fd_reify (EV_A); |
1898 | fd_reify (EV_A); |
1269 | |
1899 | |
1270 | /* calculate blocking time */ |
1900 | /* calculate blocking time */ |
1271 | { |
1901 | { |
1272 | double block; |
1902 | ev_tstamp waittime = 0.; |
|
|
1903 | ev_tstamp sleeptime = 0.; |
1273 | |
1904 | |
1274 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
1905 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
1275 | block = 0.; /* do not block at all */ |
|
|
1276 | else |
|
|
1277 | { |
1906 | { |
1278 | /* update time to cancel out callback processing overhead */ |
1907 | /* update time to cancel out callback processing overhead */ |
1279 | #if EV_USE_MONOTONIC |
|
|
1280 | if (expect_true (have_monotonic)) |
|
|
1281 | time_update_monotonic (EV_A); |
1908 | time_update (EV_A_ 1e100); |
1282 | else |
|
|
1283 | #endif |
|
|
1284 | { |
|
|
1285 | ev_rt_now = ev_time (); |
|
|
1286 | mn_now = ev_rt_now; |
|
|
1287 | } |
|
|
1288 | |
1909 | |
1289 | block = MAX_BLOCKTIME; |
1910 | waittime = MAX_BLOCKTIME; |
1290 | |
1911 | |
1291 | if (timercnt) |
1912 | if (timercnt) |
1292 | { |
1913 | { |
1293 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
1914 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
1294 | if (block > to) block = to; |
1915 | if (waittime > to) waittime = to; |
1295 | } |
1916 | } |
1296 | |
1917 | |
1297 | #if EV_PERIODICS |
1918 | #if EV_PERIODIC_ENABLE |
1298 | if (periodiccnt) |
1919 | if (periodiccnt) |
1299 | { |
1920 | { |
1300 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
1921 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
1301 | if (block > to) block = to; |
1922 | if (waittime > to) waittime = to; |
1302 | } |
1923 | } |
1303 | #endif |
1924 | #endif |
1304 | |
1925 | |
1305 | if (expect_false (block < 0.)) block = 0.; |
1926 | if (expect_false (waittime < timeout_blocktime)) |
|
|
1927 | waittime = timeout_blocktime; |
|
|
1928 | |
|
|
1929 | sleeptime = waittime - backend_fudge; |
|
|
1930 | |
|
|
1931 | if (expect_true (sleeptime > io_blocktime)) |
|
|
1932 | sleeptime = io_blocktime; |
|
|
1933 | |
|
|
1934 | if (sleeptime) |
|
|
1935 | { |
|
|
1936 | ev_sleep (sleeptime); |
|
|
1937 | waittime -= sleeptime; |
|
|
1938 | } |
1306 | } |
1939 | } |
1307 | |
1940 | |
|
|
1941 | ++loop_count; |
1308 | backend_poll (EV_A_ block); |
1942 | backend_poll (EV_A_ waittime); |
|
|
1943 | |
|
|
1944 | /* update ev_rt_now, do magic */ |
|
|
1945 | time_update (EV_A_ waittime + sleeptime); |
1309 | } |
1946 | } |
1310 | |
|
|
1311 | /* update ev_rt_now, do magic */ |
|
|
1312 | time_update (EV_A); |
|
|
1313 | |
1947 | |
1314 | /* queue pending timers and reschedule them */ |
1948 | /* queue pending timers and reschedule them */ |
1315 | timers_reify (EV_A); /* relative timers called last */ |
1949 | timers_reify (EV_A); /* relative timers called last */ |
1316 | #if EV_PERIODICS |
1950 | #if EV_PERIODIC_ENABLE |
1317 | periodics_reify (EV_A); /* absolute timers called first */ |
1951 | periodics_reify (EV_A); /* absolute timers called first */ |
1318 | #endif |
1952 | #endif |
1319 | |
1953 | |
|
|
1954 | #if EV_IDLE_ENABLE |
1320 | /* queue idle watchers unless other events are pending */ |
1955 | /* queue idle watchers unless other events are pending */ |
1321 | if (idlecnt && !any_pending (EV_A)) |
1956 | idle_reify (EV_A); |
1322 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
1957 | #endif |
1323 | |
1958 | |
1324 | /* queue check watchers, to be executed first */ |
1959 | /* queue check watchers, to be executed first */ |
1325 | if (expect_false (checkcnt)) |
1960 | if (expect_false (checkcnt)) |
1326 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1961 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1327 | |
1962 | |
1328 | call_pending (EV_A); |
1963 | call_pending (EV_A); |
1329 | |
|
|
1330 | if (expect_false (loop_done)) |
|
|
1331 | break; |
|
|
1332 | } |
1964 | } |
|
|
1965 | while (expect_true ( |
|
|
1966 | activecnt |
|
|
1967 | && !loop_done |
|
|
1968 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
|
|
1969 | )); |
1333 | |
1970 | |
1334 | if (loop_done == EVUNLOOP_ONE) |
1971 | if (loop_done == EVUNLOOP_ONE) |
1335 | loop_done = EVUNLOOP_CANCEL; |
1972 | loop_done = EVUNLOOP_CANCEL; |
1336 | } |
1973 | } |
1337 | |
1974 | |
… | |
… | |
1341 | loop_done = how; |
1978 | loop_done = how; |
1342 | } |
1979 | } |
1343 | |
1980 | |
1344 | /*****************************************************************************/ |
1981 | /*****************************************************************************/ |
1345 | |
1982 | |
1346 | inline void |
1983 | void inline_size |
1347 | wlist_add (WL *head, WL elem) |
1984 | wlist_add (WL *head, WL elem) |
1348 | { |
1985 | { |
1349 | elem->next = *head; |
1986 | elem->next = *head; |
1350 | *head = elem; |
1987 | *head = elem; |
1351 | } |
1988 | } |
1352 | |
1989 | |
1353 | inline void |
1990 | void inline_size |
1354 | wlist_del (WL *head, WL elem) |
1991 | wlist_del (WL *head, WL elem) |
1355 | { |
1992 | { |
1356 | while (*head) |
1993 | while (*head) |
1357 | { |
1994 | { |
1358 | if (*head == elem) |
1995 | if (*head == elem) |
… | |
… | |
1363 | |
2000 | |
1364 | head = &(*head)->next; |
2001 | head = &(*head)->next; |
1365 | } |
2002 | } |
1366 | } |
2003 | } |
1367 | |
2004 | |
1368 | inline void |
2005 | void inline_speed |
1369 | ev_clear_pending (EV_P_ W w) |
2006 | clear_pending (EV_P_ W w) |
1370 | { |
2007 | { |
1371 | if (w->pending) |
2008 | if (w->pending) |
1372 | { |
2009 | { |
1373 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
2010 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1374 | w->pending = 0; |
2011 | w->pending = 0; |
1375 | } |
2012 | } |
1376 | } |
2013 | } |
1377 | |
2014 | |
1378 | inline void |
2015 | int |
|
|
2016 | ev_clear_pending (EV_P_ void *w) |
|
|
2017 | { |
|
|
2018 | W w_ = (W)w; |
|
|
2019 | int pending = w_->pending; |
|
|
2020 | |
|
|
2021 | if (expect_true (pending)) |
|
|
2022 | { |
|
|
2023 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
2024 | w_->pending = 0; |
|
|
2025 | p->w = 0; |
|
|
2026 | return p->events; |
|
|
2027 | } |
|
|
2028 | else |
|
|
2029 | return 0; |
|
|
2030 | } |
|
|
2031 | |
|
|
2032 | void inline_size |
|
|
2033 | pri_adjust (EV_P_ W w) |
|
|
2034 | { |
|
|
2035 | int pri = w->priority; |
|
|
2036 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
|
|
2037 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
|
|
2038 | w->priority = pri; |
|
|
2039 | } |
|
|
2040 | |
|
|
2041 | void inline_speed |
1379 | ev_start (EV_P_ W w, int active) |
2042 | ev_start (EV_P_ W w, int active) |
1380 | { |
2043 | { |
1381 | if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; |
2044 | pri_adjust (EV_A_ w); |
1382 | if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; |
|
|
1383 | |
|
|
1384 | w->active = active; |
2045 | w->active = active; |
1385 | ev_ref (EV_A); |
2046 | ev_ref (EV_A); |
1386 | } |
2047 | } |
1387 | |
2048 | |
1388 | inline void |
2049 | void inline_size |
1389 | ev_stop (EV_P_ W w) |
2050 | ev_stop (EV_P_ W w) |
1390 | { |
2051 | { |
1391 | ev_unref (EV_A); |
2052 | ev_unref (EV_A); |
1392 | w->active = 0; |
2053 | w->active = 0; |
1393 | } |
2054 | } |
1394 | |
2055 | |
1395 | /*****************************************************************************/ |
2056 | /*****************************************************************************/ |
1396 | |
2057 | |
1397 | void |
2058 | void noinline |
1398 | ev_io_start (EV_P_ ev_io *w) |
2059 | ev_io_start (EV_P_ ev_io *w) |
1399 | { |
2060 | { |
1400 | int fd = w->fd; |
2061 | int fd = w->fd; |
1401 | |
2062 | |
1402 | if (expect_false (ev_is_active (w))) |
2063 | if (expect_false (ev_is_active (w))) |
1403 | return; |
2064 | return; |
1404 | |
2065 | |
1405 | assert (("ev_io_start called with negative fd", fd >= 0)); |
2066 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1406 | |
2067 | |
|
|
2068 | EV_FREQUENT_CHECK; |
|
|
2069 | |
1407 | ev_start (EV_A_ (W)w, 1); |
2070 | ev_start (EV_A_ (W)w, 1); |
1408 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
2071 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
1409 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
2072 | wlist_add (&anfds[fd].head, (WL)w); |
1410 | |
2073 | |
1411 | fd_change (EV_A_ fd); |
2074 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
1412 | } |
2075 | w->events &= ~EV_IOFDSET; |
1413 | |
2076 | |
1414 | void |
2077 | EV_FREQUENT_CHECK; |
|
|
2078 | } |
|
|
2079 | |
|
|
2080 | void noinline |
1415 | ev_io_stop (EV_P_ ev_io *w) |
2081 | ev_io_stop (EV_P_ ev_io *w) |
1416 | { |
2082 | { |
1417 | ev_clear_pending (EV_A_ (W)w); |
2083 | clear_pending (EV_A_ (W)w); |
1418 | if (expect_false (!ev_is_active (w))) |
2084 | if (expect_false (!ev_is_active (w))) |
1419 | return; |
2085 | return; |
1420 | |
2086 | |
1421 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2087 | assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
1422 | |
2088 | |
|
|
2089 | EV_FREQUENT_CHECK; |
|
|
2090 | |
1423 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
2091 | wlist_del (&anfds[w->fd].head, (WL)w); |
1424 | ev_stop (EV_A_ (W)w); |
2092 | ev_stop (EV_A_ (W)w); |
1425 | |
2093 | |
1426 | fd_change (EV_A_ w->fd); |
2094 | fd_change (EV_A_ w->fd, 1); |
1427 | } |
|
|
1428 | |
2095 | |
1429 | void |
2096 | EV_FREQUENT_CHECK; |
|
|
2097 | } |
|
|
2098 | |
|
|
2099 | void noinline |
1430 | ev_timer_start (EV_P_ ev_timer *w) |
2100 | ev_timer_start (EV_P_ ev_timer *w) |
1431 | { |
2101 | { |
1432 | if (expect_false (ev_is_active (w))) |
2102 | if (expect_false (ev_is_active (w))) |
1433 | return; |
2103 | return; |
1434 | |
2104 | |
1435 | ((WT)w)->at += mn_now; |
2105 | ev_at (w) += mn_now; |
1436 | |
2106 | |
1437 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2107 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1438 | |
2108 | |
|
|
2109 | EV_FREQUENT_CHECK; |
|
|
2110 | |
|
|
2111 | ++timercnt; |
1439 | ev_start (EV_A_ (W)w, ++timercnt); |
2112 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
1440 | array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2); |
2113 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
1441 | timers [timercnt - 1] = w; |
2114 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
1442 | upheap ((WT *)timers, timercnt - 1); |
2115 | ANHE_at_cache (timers [ev_active (w)]); |
|
|
2116 | upheap (timers, ev_active (w)); |
1443 | |
2117 | |
|
|
2118 | EV_FREQUENT_CHECK; |
|
|
2119 | |
1444 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
2120 | /*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
1445 | } |
2121 | } |
1446 | |
2122 | |
1447 | void |
2123 | void noinline |
1448 | ev_timer_stop (EV_P_ ev_timer *w) |
2124 | ev_timer_stop (EV_P_ ev_timer *w) |
1449 | { |
2125 | { |
1450 | ev_clear_pending (EV_A_ (W)w); |
2126 | clear_pending (EV_A_ (W)w); |
1451 | if (expect_false (!ev_is_active (w))) |
2127 | if (expect_false (!ev_is_active (w))) |
1452 | return; |
2128 | return; |
1453 | |
2129 | |
|
|
2130 | EV_FREQUENT_CHECK; |
|
|
2131 | |
|
|
2132 | { |
|
|
2133 | int active = ev_active (w); |
|
|
2134 | |
1454 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
2135 | assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
1455 | |
2136 | |
|
|
2137 | --timercnt; |
|
|
2138 | |
1456 | if (expect_true (((W)w)->active < timercnt--)) |
2139 | if (expect_true (active < timercnt + HEAP0)) |
1457 | { |
2140 | { |
1458 | timers [((W)w)->active - 1] = timers [timercnt]; |
2141 | timers [active] = timers [timercnt + HEAP0]; |
1459 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
2142 | adjustheap (timers, timercnt, active); |
1460 | } |
2143 | } |
|
|
2144 | } |
1461 | |
2145 | |
1462 | ((WT)w)->at -= mn_now; |
2146 | EV_FREQUENT_CHECK; |
|
|
2147 | |
|
|
2148 | ev_at (w) -= mn_now; |
1463 | |
2149 | |
1464 | ev_stop (EV_A_ (W)w); |
2150 | ev_stop (EV_A_ (W)w); |
1465 | } |
2151 | } |
1466 | |
2152 | |
1467 | void |
2153 | void noinline |
1468 | ev_timer_again (EV_P_ ev_timer *w) |
2154 | ev_timer_again (EV_P_ ev_timer *w) |
1469 | { |
2155 | { |
|
|
2156 | EV_FREQUENT_CHECK; |
|
|
2157 | |
1470 | if (ev_is_active (w)) |
2158 | if (ev_is_active (w)) |
1471 | { |
2159 | { |
1472 | if (w->repeat) |
2160 | if (w->repeat) |
1473 | { |
2161 | { |
1474 | ((WT)w)->at = mn_now + w->repeat; |
2162 | ev_at (w) = mn_now + w->repeat; |
|
|
2163 | ANHE_at_cache (timers [ev_active (w)]); |
1475 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
2164 | adjustheap (timers, timercnt, ev_active (w)); |
1476 | } |
2165 | } |
1477 | else |
2166 | else |
1478 | ev_timer_stop (EV_A_ w); |
2167 | ev_timer_stop (EV_A_ w); |
1479 | } |
2168 | } |
1480 | else if (w->repeat) |
2169 | else if (w->repeat) |
1481 | { |
2170 | { |
1482 | w->at = w->repeat; |
2171 | ev_at (w) = w->repeat; |
1483 | ev_timer_start (EV_A_ w); |
2172 | ev_timer_start (EV_A_ w); |
1484 | } |
2173 | } |
1485 | } |
|
|
1486 | |
2174 | |
|
|
2175 | EV_FREQUENT_CHECK; |
|
|
2176 | } |
|
|
2177 | |
1487 | #if EV_PERIODICS |
2178 | #if EV_PERIODIC_ENABLE |
1488 | void |
2179 | void noinline |
1489 | ev_periodic_start (EV_P_ ev_periodic *w) |
2180 | ev_periodic_start (EV_P_ ev_periodic *w) |
1490 | { |
2181 | { |
1491 | if (expect_false (ev_is_active (w))) |
2182 | if (expect_false (ev_is_active (w))) |
1492 | return; |
2183 | return; |
1493 | |
2184 | |
1494 | if (w->reschedule_cb) |
2185 | if (w->reschedule_cb) |
1495 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
2186 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1496 | else if (w->interval) |
2187 | else if (w->interval) |
1497 | { |
2188 | { |
1498 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2189 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1499 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2190 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1500 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
2191 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1501 | } |
2192 | } |
|
|
2193 | else |
|
|
2194 | ev_at (w) = w->offset; |
1502 | |
2195 | |
|
|
2196 | EV_FREQUENT_CHECK; |
|
|
2197 | |
|
|
2198 | ++periodiccnt; |
1503 | ev_start (EV_A_ (W)w, ++periodiccnt); |
2199 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
1504 | array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); |
2200 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
1505 | periodics [periodiccnt - 1] = w; |
2201 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
1506 | upheap ((WT *)periodics, periodiccnt - 1); |
2202 | ANHE_at_cache (periodics [ev_active (w)]); |
|
|
2203 | upheap (periodics, ev_active (w)); |
1507 | |
2204 | |
|
|
2205 | EV_FREQUENT_CHECK; |
|
|
2206 | |
1508 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
2207 | /*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
1509 | } |
2208 | } |
1510 | |
2209 | |
1511 | void |
2210 | void noinline |
1512 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2211 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1513 | { |
2212 | { |
1514 | ev_clear_pending (EV_A_ (W)w); |
2213 | clear_pending (EV_A_ (W)w); |
1515 | if (expect_false (!ev_is_active (w))) |
2214 | if (expect_false (!ev_is_active (w))) |
1516 | return; |
2215 | return; |
1517 | |
2216 | |
|
|
2217 | EV_FREQUENT_CHECK; |
|
|
2218 | |
|
|
2219 | { |
|
|
2220 | int active = ev_active (w); |
|
|
2221 | |
1518 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
2222 | assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
1519 | |
2223 | |
|
|
2224 | --periodiccnt; |
|
|
2225 | |
1520 | if (expect_true (((W)w)->active < periodiccnt--)) |
2226 | if (expect_true (active < periodiccnt + HEAP0)) |
1521 | { |
2227 | { |
1522 | periodics [((W)w)->active - 1] = periodics [periodiccnt]; |
2228 | periodics [active] = periodics [periodiccnt + HEAP0]; |
1523 | adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); |
2229 | adjustheap (periodics, periodiccnt, active); |
1524 | } |
2230 | } |
|
|
2231 | } |
|
|
2232 | |
|
|
2233 | EV_FREQUENT_CHECK; |
1525 | |
2234 | |
1526 | ev_stop (EV_A_ (W)w); |
2235 | ev_stop (EV_A_ (W)w); |
1527 | } |
2236 | } |
1528 | |
2237 | |
1529 | void |
2238 | void noinline |
1530 | ev_periodic_again (EV_P_ ev_periodic *w) |
2239 | ev_periodic_again (EV_P_ ev_periodic *w) |
1531 | { |
2240 | { |
1532 | /* TODO: use adjustheap and recalculation */ |
2241 | /* TODO: use adjustheap and recalculation */ |
1533 | ev_periodic_stop (EV_A_ w); |
2242 | ev_periodic_stop (EV_A_ w); |
1534 | ev_periodic_start (EV_A_ w); |
2243 | ev_periodic_start (EV_A_ w); |
1535 | } |
2244 | } |
1536 | #endif |
2245 | #endif |
1537 | |
2246 | |
1538 | void |
2247 | #ifndef SA_RESTART |
|
|
2248 | # define SA_RESTART 0 |
|
|
2249 | #endif |
|
|
2250 | |
|
|
2251 | void noinline |
1539 | ev_idle_start (EV_P_ ev_idle *w) |
2252 | ev_signal_start (EV_P_ ev_signal *w) |
1540 | { |
2253 | { |
|
|
2254 | #if EV_MULTIPLICITY |
|
|
2255 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
2256 | #endif |
1541 | if (expect_false (ev_is_active (w))) |
2257 | if (expect_false (ev_is_active (w))) |
1542 | return; |
2258 | return; |
1543 | |
2259 | |
|
|
2260 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
|
|
2261 | |
|
|
2262 | evpipe_init (EV_A); |
|
|
2263 | |
|
|
2264 | EV_FREQUENT_CHECK; |
|
|
2265 | |
|
|
2266 | { |
|
|
2267 | #ifndef _WIN32 |
|
|
2268 | sigset_t full, prev; |
|
|
2269 | sigfillset (&full); |
|
|
2270 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2271 | #endif |
|
|
2272 | |
|
|
2273 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
|
|
2274 | |
|
|
2275 | #ifndef _WIN32 |
|
|
2276 | sigprocmask (SIG_SETMASK, &prev, 0); |
|
|
2277 | #endif |
|
|
2278 | } |
|
|
2279 | |
1544 | ev_start (EV_A_ (W)w, ++idlecnt); |
2280 | ev_start (EV_A_ (W)w, 1); |
1545 | array_needsize (ev_idle *, idles, idlemax, idlecnt, EMPTY2); |
2281 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
1546 | idles [idlecnt - 1] = w; |
|
|
1547 | } |
|
|
1548 | |
2282 | |
1549 | void |
2283 | if (!((WL)w)->next) |
|
|
2284 | { |
|
|
2285 | #if _WIN32 |
|
|
2286 | signal (w->signum, ev_sighandler); |
|
|
2287 | #else |
|
|
2288 | struct sigaction sa; |
|
|
2289 | sa.sa_handler = ev_sighandler; |
|
|
2290 | sigfillset (&sa.sa_mask); |
|
|
2291 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
|
|
2292 | sigaction (w->signum, &sa, 0); |
|
|
2293 | #endif |
|
|
2294 | } |
|
|
2295 | |
|
|
2296 | EV_FREQUENT_CHECK; |
|
|
2297 | } |
|
|
2298 | |
|
|
2299 | void noinline |
1550 | ev_idle_stop (EV_P_ ev_idle *w) |
2300 | ev_signal_stop (EV_P_ ev_signal *w) |
1551 | { |
2301 | { |
1552 | ev_clear_pending (EV_A_ (W)w); |
2302 | clear_pending (EV_A_ (W)w); |
1553 | if (expect_false (!ev_is_active (w))) |
2303 | if (expect_false (!ev_is_active (w))) |
1554 | return; |
2304 | return; |
1555 | |
2305 | |
1556 | idles [((W)w)->active - 1] = idles [--idlecnt]; |
2306 | EV_FREQUENT_CHECK; |
|
|
2307 | |
|
|
2308 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
1557 | ev_stop (EV_A_ (W)w); |
2309 | ev_stop (EV_A_ (W)w); |
1558 | } |
|
|
1559 | |
2310 | |
|
|
2311 | if (!signals [w->signum - 1].head) |
|
|
2312 | signal (w->signum, SIG_DFL); |
|
|
2313 | |
|
|
2314 | EV_FREQUENT_CHECK; |
|
|
2315 | } |
|
|
2316 | |
1560 | void |
2317 | void |
1561 | ev_prepare_start (EV_P_ ev_prepare *w) |
2318 | ev_child_start (EV_P_ ev_child *w) |
1562 | { |
2319 | { |
|
|
2320 | #if EV_MULTIPLICITY |
|
|
2321 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
2322 | #endif |
1563 | if (expect_false (ev_is_active (w))) |
2323 | if (expect_false (ev_is_active (w))) |
1564 | return; |
2324 | return; |
|
|
2325 | |
|
|
2326 | EV_FREQUENT_CHECK; |
|
|
2327 | |
|
|
2328 | ev_start (EV_A_ (W)w, 1); |
|
|
2329 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
|
|
2330 | |
|
|
2331 | EV_FREQUENT_CHECK; |
|
|
2332 | } |
|
|
2333 | |
|
|
2334 | void |
|
|
2335 | ev_child_stop (EV_P_ ev_child *w) |
|
|
2336 | { |
|
|
2337 | clear_pending (EV_A_ (W)w); |
|
|
2338 | if (expect_false (!ev_is_active (w))) |
|
|
2339 | return; |
|
|
2340 | |
|
|
2341 | EV_FREQUENT_CHECK; |
|
|
2342 | |
|
|
2343 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
|
|
2344 | ev_stop (EV_A_ (W)w); |
|
|
2345 | |
|
|
2346 | EV_FREQUENT_CHECK; |
|
|
2347 | } |
|
|
2348 | |
|
|
2349 | #if EV_STAT_ENABLE |
|
|
2350 | |
|
|
2351 | # ifdef _WIN32 |
|
|
2352 | # undef lstat |
|
|
2353 | # define lstat(a,b) _stati64 (a,b) |
|
|
2354 | # endif |
|
|
2355 | |
|
|
2356 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
2357 | #define MIN_STAT_INTERVAL 0.1074891 |
|
|
2358 | |
|
|
2359 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
|
|
2360 | |
|
|
2361 | #if EV_USE_INOTIFY |
|
|
2362 | # define EV_INOTIFY_BUFSIZE 8192 |
|
|
2363 | |
|
|
2364 | static void noinline |
|
|
2365 | infy_add (EV_P_ ev_stat *w) |
|
|
2366 | { |
|
|
2367 | 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); |
|
|
2368 | |
|
|
2369 | if (w->wd < 0) |
|
|
2370 | { |
|
|
2371 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
|
|
2372 | |
|
|
2373 | /* monitor some parent directory for speedup hints */ |
|
|
2374 | /* note that exceeding the hardcoded limit is not a correctness issue, */ |
|
|
2375 | /* but an efficiency issue only */ |
|
|
2376 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
|
|
2377 | { |
|
|
2378 | char path [4096]; |
|
|
2379 | strcpy (path, w->path); |
|
|
2380 | |
|
|
2381 | do |
|
|
2382 | { |
|
|
2383 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
|
|
2384 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
|
|
2385 | |
|
|
2386 | char *pend = strrchr (path, '/'); |
|
|
2387 | |
|
|
2388 | if (!pend) |
|
|
2389 | break; /* whoops, no '/', complain to your admin */ |
|
|
2390 | |
|
|
2391 | *pend = 0; |
|
|
2392 | w->wd = inotify_add_watch (fs_fd, path, mask); |
|
|
2393 | } |
|
|
2394 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
|
|
2395 | } |
|
|
2396 | } |
|
|
2397 | else |
|
|
2398 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
2399 | |
|
|
2400 | if (w->wd >= 0) |
|
|
2401 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
2402 | } |
|
|
2403 | |
|
|
2404 | static void noinline |
|
|
2405 | infy_del (EV_P_ ev_stat *w) |
|
|
2406 | { |
|
|
2407 | int slot; |
|
|
2408 | int wd = w->wd; |
|
|
2409 | |
|
|
2410 | if (wd < 0) |
|
|
2411 | return; |
|
|
2412 | |
|
|
2413 | w->wd = -2; |
|
|
2414 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
|
|
2415 | wlist_del (&fs_hash [slot].head, (WL)w); |
|
|
2416 | |
|
|
2417 | /* remove this watcher, if others are watching it, they will rearm */ |
|
|
2418 | inotify_rm_watch (fs_fd, wd); |
|
|
2419 | } |
|
|
2420 | |
|
|
2421 | static void noinline |
|
|
2422 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
|
|
2423 | { |
|
|
2424 | if (slot < 0) |
|
|
2425 | /* overflow, need to check for all hahs slots */ |
|
|
2426 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
2427 | infy_wd (EV_A_ slot, wd, ev); |
|
|
2428 | else |
|
|
2429 | { |
|
|
2430 | WL w_; |
|
|
2431 | |
|
|
2432 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
|
|
2433 | { |
|
|
2434 | ev_stat *w = (ev_stat *)w_; |
|
|
2435 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
|
|
2436 | |
|
|
2437 | if (w->wd == wd || wd == -1) |
|
|
2438 | { |
|
|
2439 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
|
|
2440 | { |
|
|
2441 | w->wd = -1; |
|
|
2442 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
2443 | } |
|
|
2444 | |
|
|
2445 | stat_timer_cb (EV_A_ &w->timer, 0); |
|
|
2446 | } |
|
|
2447 | } |
|
|
2448 | } |
|
|
2449 | } |
|
|
2450 | |
|
|
2451 | static void |
|
|
2452 | infy_cb (EV_P_ ev_io *w, int revents) |
|
|
2453 | { |
|
|
2454 | char buf [EV_INOTIFY_BUFSIZE]; |
|
|
2455 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2456 | int ofs; |
|
|
2457 | int len = read (fs_fd, buf, sizeof (buf)); |
|
|
2458 | |
|
|
2459 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
|
|
2460 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
2461 | } |
|
|
2462 | |
|
|
2463 | void inline_size |
|
|
2464 | infy_init (EV_P) |
|
|
2465 | { |
|
|
2466 | if (fs_fd != -2) |
|
|
2467 | return; |
|
|
2468 | |
|
|
2469 | fs_fd = inotify_init (); |
|
|
2470 | |
|
|
2471 | if (fs_fd >= 0) |
|
|
2472 | { |
|
|
2473 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
|
|
2474 | ev_set_priority (&fs_w, EV_MAXPRI); |
|
|
2475 | ev_io_start (EV_A_ &fs_w); |
|
|
2476 | } |
|
|
2477 | } |
|
|
2478 | |
|
|
2479 | void inline_size |
|
|
2480 | infy_fork (EV_P) |
|
|
2481 | { |
|
|
2482 | int slot; |
|
|
2483 | |
|
|
2484 | if (fs_fd < 0) |
|
|
2485 | return; |
|
|
2486 | |
|
|
2487 | close (fs_fd); |
|
|
2488 | fs_fd = inotify_init (); |
|
|
2489 | |
|
|
2490 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
2491 | { |
|
|
2492 | WL w_ = fs_hash [slot].head; |
|
|
2493 | fs_hash [slot].head = 0; |
|
|
2494 | |
|
|
2495 | while (w_) |
|
|
2496 | { |
|
|
2497 | ev_stat *w = (ev_stat *)w_; |
|
|
2498 | w_ = w_->next; /* lets us add this watcher */ |
|
|
2499 | |
|
|
2500 | w->wd = -1; |
|
|
2501 | |
|
|
2502 | if (fs_fd >= 0) |
|
|
2503 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
2504 | else |
|
|
2505 | ev_timer_start (EV_A_ &w->timer); |
|
|
2506 | } |
|
|
2507 | |
|
|
2508 | } |
|
|
2509 | } |
|
|
2510 | |
|
|
2511 | #endif |
|
|
2512 | |
|
|
2513 | void |
|
|
2514 | ev_stat_stat (EV_P_ ev_stat *w) |
|
|
2515 | { |
|
|
2516 | if (lstat (w->path, &w->attr) < 0) |
|
|
2517 | w->attr.st_nlink = 0; |
|
|
2518 | else if (!w->attr.st_nlink) |
|
|
2519 | w->attr.st_nlink = 1; |
|
|
2520 | } |
|
|
2521 | |
|
|
2522 | static void noinline |
|
|
2523 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
|
|
2524 | { |
|
|
2525 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
|
|
2526 | |
|
|
2527 | /* we copy this here each the time so that */ |
|
|
2528 | /* prev has the old value when the callback gets invoked */ |
|
|
2529 | w->prev = w->attr; |
|
|
2530 | ev_stat_stat (EV_A_ w); |
|
|
2531 | |
|
|
2532 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
|
|
2533 | if ( |
|
|
2534 | w->prev.st_dev != w->attr.st_dev |
|
|
2535 | || w->prev.st_ino != w->attr.st_ino |
|
|
2536 | || w->prev.st_mode != w->attr.st_mode |
|
|
2537 | || w->prev.st_nlink != w->attr.st_nlink |
|
|
2538 | || w->prev.st_uid != w->attr.st_uid |
|
|
2539 | || w->prev.st_gid != w->attr.st_gid |
|
|
2540 | || w->prev.st_rdev != w->attr.st_rdev |
|
|
2541 | || w->prev.st_size != w->attr.st_size |
|
|
2542 | || w->prev.st_atime != w->attr.st_atime |
|
|
2543 | || w->prev.st_mtime != w->attr.st_mtime |
|
|
2544 | || w->prev.st_ctime != w->attr.st_ctime |
|
|
2545 | ) { |
|
|
2546 | #if EV_USE_INOTIFY |
|
|
2547 | infy_del (EV_A_ w); |
|
|
2548 | infy_add (EV_A_ w); |
|
|
2549 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
2550 | #endif |
|
|
2551 | |
|
|
2552 | ev_feed_event (EV_A_ w, EV_STAT); |
|
|
2553 | } |
|
|
2554 | } |
|
|
2555 | |
|
|
2556 | void |
|
|
2557 | ev_stat_start (EV_P_ ev_stat *w) |
|
|
2558 | { |
|
|
2559 | if (expect_false (ev_is_active (w))) |
|
|
2560 | return; |
|
|
2561 | |
|
|
2562 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2563 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2564 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2565 | |
|
|
2566 | ev_stat_stat (EV_A_ w); |
|
|
2567 | |
|
|
2568 | if (w->interval < MIN_STAT_INTERVAL) |
|
|
2569 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2570 | |
|
|
2571 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
|
|
2572 | ev_set_priority (&w->timer, ev_priority (w)); |
|
|
2573 | |
|
|
2574 | #if EV_USE_INOTIFY |
|
|
2575 | infy_init (EV_A); |
|
|
2576 | |
|
|
2577 | if (fs_fd >= 0) |
|
|
2578 | infy_add (EV_A_ w); |
|
|
2579 | else |
|
|
2580 | #endif |
|
|
2581 | ev_timer_start (EV_A_ &w->timer); |
|
|
2582 | |
|
|
2583 | ev_start (EV_A_ (W)w, 1); |
|
|
2584 | |
|
|
2585 | EV_FREQUENT_CHECK; |
|
|
2586 | } |
|
|
2587 | |
|
|
2588 | void |
|
|
2589 | ev_stat_stop (EV_P_ ev_stat *w) |
|
|
2590 | { |
|
|
2591 | clear_pending (EV_A_ (W)w); |
|
|
2592 | if (expect_false (!ev_is_active (w))) |
|
|
2593 | return; |
|
|
2594 | |
|
|
2595 | EV_FREQUENT_CHECK; |
|
|
2596 | |
|
|
2597 | #if EV_USE_INOTIFY |
|
|
2598 | infy_del (EV_A_ w); |
|
|
2599 | #endif |
|
|
2600 | ev_timer_stop (EV_A_ &w->timer); |
|
|
2601 | |
|
|
2602 | ev_stop (EV_A_ (W)w); |
|
|
2603 | |
|
|
2604 | EV_FREQUENT_CHECK; |
|
|
2605 | } |
|
|
2606 | #endif |
|
|
2607 | |
|
|
2608 | #if EV_IDLE_ENABLE |
|
|
2609 | void |
|
|
2610 | ev_idle_start (EV_P_ ev_idle *w) |
|
|
2611 | { |
|
|
2612 | if (expect_false (ev_is_active (w))) |
|
|
2613 | return; |
|
|
2614 | |
|
|
2615 | pri_adjust (EV_A_ (W)w); |
|
|
2616 | |
|
|
2617 | EV_FREQUENT_CHECK; |
|
|
2618 | |
|
|
2619 | { |
|
|
2620 | int active = ++idlecnt [ABSPRI (w)]; |
|
|
2621 | |
|
|
2622 | ++idleall; |
|
|
2623 | ev_start (EV_A_ (W)w, active); |
|
|
2624 | |
|
|
2625 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
|
|
2626 | idles [ABSPRI (w)][active - 1] = w; |
|
|
2627 | } |
|
|
2628 | |
|
|
2629 | EV_FREQUENT_CHECK; |
|
|
2630 | } |
|
|
2631 | |
|
|
2632 | void |
|
|
2633 | ev_idle_stop (EV_P_ ev_idle *w) |
|
|
2634 | { |
|
|
2635 | clear_pending (EV_A_ (W)w); |
|
|
2636 | if (expect_false (!ev_is_active (w))) |
|
|
2637 | return; |
|
|
2638 | |
|
|
2639 | EV_FREQUENT_CHECK; |
|
|
2640 | |
|
|
2641 | { |
|
|
2642 | int active = ev_active (w); |
|
|
2643 | |
|
|
2644 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
|
|
2645 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
|
|
2646 | |
|
|
2647 | ev_stop (EV_A_ (W)w); |
|
|
2648 | --idleall; |
|
|
2649 | } |
|
|
2650 | |
|
|
2651 | EV_FREQUENT_CHECK; |
|
|
2652 | } |
|
|
2653 | #endif |
|
|
2654 | |
|
|
2655 | void |
|
|
2656 | ev_prepare_start (EV_P_ ev_prepare *w) |
|
|
2657 | { |
|
|
2658 | if (expect_false (ev_is_active (w))) |
|
|
2659 | return; |
|
|
2660 | |
|
|
2661 | EV_FREQUENT_CHECK; |
1565 | |
2662 | |
1566 | ev_start (EV_A_ (W)w, ++preparecnt); |
2663 | ev_start (EV_A_ (W)w, ++preparecnt); |
1567 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
2664 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
1568 | prepares [preparecnt - 1] = w; |
2665 | prepares [preparecnt - 1] = w; |
|
|
2666 | |
|
|
2667 | EV_FREQUENT_CHECK; |
1569 | } |
2668 | } |
1570 | |
2669 | |
1571 | void |
2670 | void |
1572 | ev_prepare_stop (EV_P_ ev_prepare *w) |
2671 | ev_prepare_stop (EV_P_ ev_prepare *w) |
1573 | { |
2672 | { |
1574 | ev_clear_pending (EV_A_ (W)w); |
2673 | clear_pending (EV_A_ (W)w); |
1575 | if (expect_false (!ev_is_active (w))) |
2674 | if (expect_false (!ev_is_active (w))) |
1576 | return; |
2675 | return; |
1577 | |
2676 | |
|
|
2677 | EV_FREQUENT_CHECK; |
|
|
2678 | |
|
|
2679 | { |
|
|
2680 | int active = ev_active (w); |
|
|
2681 | |
1578 | prepares [((W)w)->active - 1] = prepares [--preparecnt]; |
2682 | prepares [active - 1] = prepares [--preparecnt]; |
|
|
2683 | ev_active (prepares [active - 1]) = active; |
|
|
2684 | } |
|
|
2685 | |
1579 | ev_stop (EV_A_ (W)w); |
2686 | ev_stop (EV_A_ (W)w); |
|
|
2687 | |
|
|
2688 | EV_FREQUENT_CHECK; |
1580 | } |
2689 | } |
1581 | |
2690 | |
1582 | void |
2691 | void |
1583 | ev_check_start (EV_P_ ev_check *w) |
2692 | ev_check_start (EV_P_ ev_check *w) |
1584 | { |
2693 | { |
1585 | if (expect_false (ev_is_active (w))) |
2694 | if (expect_false (ev_is_active (w))) |
1586 | return; |
2695 | return; |
|
|
2696 | |
|
|
2697 | EV_FREQUENT_CHECK; |
1587 | |
2698 | |
1588 | ev_start (EV_A_ (W)w, ++checkcnt); |
2699 | ev_start (EV_A_ (W)w, ++checkcnt); |
1589 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
2700 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
1590 | checks [checkcnt - 1] = w; |
2701 | checks [checkcnt - 1] = w; |
|
|
2702 | |
|
|
2703 | EV_FREQUENT_CHECK; |
1591 | } |
2704 | } |
1592 | |
2705 | |
1593 | void |
2706 | void |
1594 | ev_check_stop (EV_P_ ev_check *w) |
2707 | ev_check_stop (EV_P_ ev_check *w) |
1595 | { |
2708 | { |
1596 | ev_clear_pending (EV_A_ (W)w); |
2709 | clear_pending (EV_A_ (W)w); |
1597 | if (expect_false (!ev_is_active (w))) |
2710 | if (expect_false (!ev_is_active (w))) |
1598 | return; |
2711 | return; |
1599 | |
2712 | |
|
|
2713 | EV_FREQUENT_CHECK; |
|
|
2714 | |
|
|
2715 | { |
|
|
2716 | int active = ev_active (w); |
|
|
2717 | |
1600 | checks [((W)w)->active - 1] = checks [--checkcnt]; |
2718 | checks [active - 1] = checks [--checkcnt]; |
|
|
2719 | ev_active (checks [active - 1]) = active; |
|
|
2720 | } |
|
|
2721 | |
1601 | ev_stop (EV_A_ (W)w); |
2722 | ev_stop (EV_A_ (W)w); |
1602 | } |
|
|
1603 | |
2723 | |
1604 | #ifndef SA_RESTART |
2724 | EV_FREQUENT_CHECK; |
1605 | # define SA_RESTART 0 |
|
|
1606 | #endif |
|
|
1607 | |
|
|
1608 | void |
|
|
1609 | ev_signal_start (EV_P_ ev_signal *w) |
|
|
1610 | { |
|
|
1611 | #if EV_MULTIPLICITY |
|
|
1612 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1613 | #endif |
|
|
1614 | if (expect_false (ev_is_active (w))) |
|
|
1615 | return; |
|
|
1616 | |
|
|
1617 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
|
|
1618 | |
|
|
1619 | ev_start (EV_A_ (W)w, 1); |
|
|
1620 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
|
|
1621 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
|
|
1622 | |
|
|
1623 | if (!((WL)w)->next) |
|
|
1624 | { |
|
|
1625 | #if _WIN32 |
|
|
1626 | signal (w->signum, sighandler); |
|
|
1627 | #else |
|
|
1628 | struct sigaction sa; |
|
|
1629 | sa.sa_handler = sighandler; |
|
|
1630 | sigfillset (&sa.sa_mask); |
|
|
1631 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
|
|
1632 | sigaction (w->signum, &sa, 0); |
|
|
1633 | #endif |
|
|
1634 | } |
|
|
1635 | } |
2725 | } |
1636 | |
2726 | |
1637 | void |
2727 | #if EV_EMBED_ENABLE |
1638 | ev_signal_stop (EV_P_ ev_signal *w) |
2728 | void noinline |
1639 | { |
|
|
1640 | ev_clear_pending (EV_A_ (W)w); |
|
|
1641 | if (expect_false (!ev_is_active (w))) |
|
|
1642 | return; |
|
|
1643 | |
|
|
1644 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
|
|
1645 | ev_stop (EV_A_ (W)w); |
|
|
1646 | |
|
|
1647 | if (!signals [w->signum - 1].head) |
|
|
1648 | signal (w->signum, SIG_DFL); |
|
|
1649 | } |
|
|
1650 | |
|
|
1651 | void |
|
|
1652 | ev_child_start (EV_P_ ev_child *w) |
|
|
1653 | { |
|
|
1654 | #if EV_MULTIPLICITY |
|
|
1655 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1656 | #endif |
|
|
1657 | if (expect_false (ev_is_active (w))) |
|
|
1658 | return; |
|
|
1659 | |
|
|
1660 | ev_start (EV_A_ (W)w, 1); |
|
|
1661 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
|
|
1662 | } |
|
|
1663 | |
|
|
1664 | void |
|
|
1665 | ev_child_stop (EV_P_ ev_child *w) |
|
|
1666 | { |
|
|
1667 | ev_clear_pending (EV_A_ (W)w); |
|
|
1668 | if (expect_false (!ev_is_active (w))) |
|
|
1669 | return; |
|
|
1670 | |
|
|
1671 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
|
|
1672 | ev_stop (EV_A_ (W)w); |
|
|
1673 | } |
|
|
1674 | |
|
|
1675 | #if EV_MULTIPLICITY |
|
|
1676 | void |
|
|
1677 | ev_embed_sweep (EV_P_ ev_embed *w) |
2729 | ev_embed_sweep (EV_P_ ev_embed *w) |
1678 | { |
2730 | { |
1679 | ev_loop (w->loop, EVLOOP_NONBLOCK); |
2731 | ev_loop (w->other, EVLOOP_NONBLOCK); |
1680 | } |
2732 | } |
1681 | |
2733 | |
1682 | static void |
2734 | static void |
1683 | embed_cb (EV_P_ ev_io *io, int revents) |
2735 | embed_io_cb (EV_P_ ev_io *io, int revents) |
1684 | { |
2736 | { |
1685 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
2737 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
1686 | |
2738 | |
1687 | if (ev_cb (w)) |
2739 | if (ev_cb (w)) |
1688 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2740 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
1689 | else |
2741 | else |
1690 | ev_embed_sweep (loop, w); |
2742 | ev_loop (w->other, EVLOOP_NONBLOCK); |
1691 | } |
2743 | } |
|
|
2744 | |
|
|
2745 | static void |
|
|
2746 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
|
|
2747 | { |
|
|
2748 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
|
|
2749 | |
|
|
2750 | { |
|
|
2751 | struct ev_loop *loop = w->other; |
|
|
2752 | |
|
|
2753 | while (fdchangecnt) |
|
|
2754 | { |
|
|
2755 | fd_reify (EV_A); |
|
|
2756 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
2757 | } |
|
|
2758 | } |
|
|
2759 | } |
|
|
2760 | |
|
|
2761 | #if 0 |
|
|
2762 | static void |
|
|
2763 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
|
|
2764 | { |
|
|
2765 | ev_idle_stop (EV_A_ idle); |
|
|
2766 | } |
|
|
2767 | #endif |
1692 | |
2768 | |
1693 | void |
2769 | void |
1694 | ev_embed_start (EV_P_ ev_embed *w) |
2770 | ev_embed_start (EV_P_ ev_embed *w) |
1695 | { |
2771 | { |
1696 | if (expect_false (ev_is_active (w))) |
2772 | if (expect_false (ev_is_active (w))) |
1697 | return; |
2773 | return; |
1698 | |
2774 | |
1699 | { |
2775 | { |
1700 | struct ev_loop *loop = w->loop; |
2776 | struct ev_loop *loop = w->other; |
1701 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2777 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
1702 | ev_io_init (&w->io, embed_cb, backend_fd, EV_READ); |
2778 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
1703 | } |
2779 | } |
|
|
2780 | |
|
|
2781 | EV_FREQUENT_CHECK; |
1704 | |
2782 | |
1705 | ev_set_priority (&w->io, ev_priority (w)); |
2783 | ev_set_priority (&w->io, ev_priority (w)); |
1706 | ev_io_start (EV_A_ &w->io); |
2784 | ev_io_start (EV_A_ &w->io); |
|
|
2785 | |
|
|
2786 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
|
|
2787 | ev_set_priority (&w->prepare, EV_MINPRI); |
|
|
2788 | ev_prepare_start (EV_A_ &w->prepare); |
|
|
2789 | |
|
|
2790 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
|
|
2791 | |
1707 | ev_start (EV_A_ (W)w, 1); |
2792 | ev_start (EV_A_ (W)w, 1); |
|
|
2793 | |
|
|
2794 | EV_FREQUENT_CHECK; |
1708 | } |
2795 | } |
1709 | |
2796 | |
1710 | void |
2797 | void |
1711 | ev_embed_stop (EV_P_ ev_embed *w) |
2798 | ev_embed_stop (EV_P_ ev_embed *w) |
1712 | { |
2799 | { |
1713 | ev_clear_pending (EV_A_ (W)w); |
2800 | clear_pending (EV_A_ (W)w); |
1714 | if (expect_false (!ev_is_active (w))) |
2801 | if (expect_false (!ev_is_active (w))) |
1715 | return; |
2802 | return; |
1716 | |
2803 | |
|
|
2804 | EV_FREQUENT_CHECK; |
|
|
2805 | |
1717 | ev_io_stop (EV_A_ &w->io); |
2806 | ev_io_stop (EV_A_ &w->io); |
|
|
2807 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
2808 | |
1718 | ev_stop (EV_A_ (W)w); |
2809 | ev_stop (EV_A_ (W)w); |
|
|
2810 | |
|
|
2811 | EV_FREQUENT_CHECK; |
|
|
2812 | } |
|
|
2813 | #endif |
|
|
2814 | |
|
|
2815 | #if EV_FORK_ENABLE |
|
|
2816 | void |
|
|
2817 | ev_fork_start (EV_P_ ev_fork *w) |
|
|
2818 | { |
|
|
2819 | if (expect_false (ev_is_active (w))) |
|
|
2820 | return; |
|
|
2821 | |
|
|
2822 | EV_FREQUENT_CHECK; |
|
|
2823 | |
|
|
2824 | ev_start (EV_A_ (W)w, ++forkcnt); |
|
|
2825 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
|
|
2826 | forks [forkcnt - 1] = w; |
|
|
2827 | |
|
|
2828 | EV_FREQUENT_CHECK; |
|
|
2829 | } |
|
|
2830 | |
|
|
2831 | void |
|
|
2832 | ev_fork_stop (EV_P_ ev_fork *w) |
|
|
2833 | { |
|
|
2834 | clear_pending (EV_A_ (W)w); |
|
|
2835 | if (expect_false (!ev_is_active (w))) |
|
|
2836 | return; |
|
|
2837 | |
|
|
2838 | EV_FREQUENT_CHECK; |
|
|
2839 | |
|
|
2840 | { |
|
|
2841 | int active = ev_active (w); |
|
|
2842 | |
|
|
2843 | forks [active - 1] = forks [--forkcnt]; |
|
|
2844 | ev_active (forks [active - 1]) = active; |
|
|
2845 | } |
|
|
2846 | |
|
|
2847 | ev_stop (EV_A_ (W)w); |
|
|
2848 | |
|
|
2849 | EV_FREQUENT_CHECK; |
|
|
2850 | } |
|
|
2851 | #endif |
|
|
2852 | |
|
|
2853 | #if EV_ASYNC_ENABLE |
|
|
2854 | void |
|
|
2855 | ev_async_start (EV_P_ ev_async *w) |
|
|
2856 | { |
|
|
2857 | if (expect_false (ev_is_active (w))) |
|
|
2858 | return; |
|
|
2859 | |
|
|
2860 | evpipe_init (EV_A); |
|
|
2861 | |
|
|
2862 | EV_FREQUENT_CHECK; |
|
|
2863 | |
|
|
2864 | ev_start (EV_A_ (W)w, ++asynccnt); |
|
|
2865 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
|
|
2866 | asyncs [asynccnt - 1] = w; |
|
|
2867 | |
|
|
2868 | EV_FREQUENT_CHECK; |
|
|
2869 | } |
|
|
2870 | |
|
|
2871 | void |
|
|
2872 | ev_async_stop (EV_P_ ev_async *w) |
|
|
2873 | { |
|
|
2874 | clear_pending (EV_A_ (W)w); |
|
|
2875 | if (expect_false (!ev_is_active (w))) |
|
|
2876 | return; |
|
|
2877 | |
|
|
2878 | EV_FREQUENT_CHECK; |
|
|
2879 | |
|
|
2880 | { |
|
|
2881 | int active = ev_active (w); |
|
|
2882 | |
|
|
2883 | asyncs [active - 1] = asyncs [--asynccnt]; |
|
|
2884 | ev_active (asyncs [active - 1]) = active; |
|
|
2885 | } |
|
|
2886 | |
|
|
2887 | ev_stop (EV_A_ (W)w); |
|
|
2888 | |
|
|
2889 | EV_FREQUENT_CHECK; |
|
|
2890 | } |
|
|
2891 | |
|
|
2892 | void |
|
|
2893 | ev_async_send (EV_P_ ev_async *w) |
|
|
2894 | { |
|
|
2895 | w->sent = 1; |
|
|
2896 | evpipe_write (EV_A_ &gotasync); |
1719 | } |
2897 | } |
1720 | #endif |
2898 | #endif |
1721 | |
2899 | |
1722 | /*****************************************************************************/ |
2900 | /*****************************************************************************/ |
1723 | |
2901 | |
… | |
… | |
1781 | ev_timer_set (&once->to, timeout, 0.); |
2959 | ev_timer_set (&once->to, timeout, 0.); |
1782 | ev_timer_start (EV_A_ &once->to); |
2960 | ev_timer_start (EV_A_ &once->to); |
1783 | } |
2961 | } |
1784 | } |
2962 | } |
1785 | |
2963 | |
|
|
2964 | #if EV_MULTIPLICITY |
|
|
2965 | #include "ev_wrap.h" |
|
|
2966 | #endif |
|
|
2967 | |
1786 | #ifdef __cplusplus |
2968 | #ifdef __cplusplus |
1787 | } |
2969 | } |
1788 | #endif |
2970 | #endif |
1789 | |
2971 | |