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 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
162 | |
241 | |
163 | #ifndef CLOCK_MONOTONIC |
242 | #ifndef CLOCK_MONOTONIC |
164 | # undef EV_USE_MONOTONIC |
243 | # undef EV_USE_MONOTONIC |
165 | # define EV_USE_MONOTONIC 0 |
244 | # define EV_USE_MONOTONIC 0 |
166 | #endif |
245 | #endif |
… | |
… | |
168 | #ifndef CLOCK_REALTIME |
247 | #ifndef CLOCK_REALTIME |
169 | # undef EV_USE_REALTIME |
248 | # undef EV_USE_REALTIME |
170 | # define EV_USE_REALTIME 0 |
249 | # define EV_USE_REALTIME 0 |
171 | #endif |
250 | #endif |
172 | |
251 | |
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252 | #if !EV_STAT_ENABLE |
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253 | # undef EV_USE_INOTIFY |
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254 | # define EV_USE_INOTIFY 0 |
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255 | #endif |
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256 | |
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257 | #if !EV_USE_NANOSLEEP |
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258 | # ifndef _WIN32 |
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259 | # include <sys/select.h> |
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260 | # endif |
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261 | #endif |
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262 | |
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263 | #if EV_USE_INOTIFY |
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264 | # include <sys/inotify.h> |
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265 | #endif |
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266 | |
173 | #if EV_SELECT_IS_WINSOCKET |
267 | #if EV_SELECT_IS_WINSOCKET |
174 | # include <winsock.h> |
268 | # include <winsock.h> |
175 | #endif |
269 | #endif |
176 | |
270 | |
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271 | #if EV_USE_EVENTFD |
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272 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
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273 | # include <stdint.h> |
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274 | # ifdef __cplusplus |
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275 | extern "C" { |
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276 | # endif |
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277 | int eventfd (unsigned int initval, int flags); |
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278 | # ifdef __cplusplus |
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279 | } |
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280 | # endif |
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281 | #endif |
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282 | |
177 | /**/ |
283 | /**/ |
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284 | |
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285 | /* |
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286 | * This is used to avoid floating point rounding problems. |
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287 | * It is added to ev_rt_now when scheduling periodics |
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288 | * to ensure progress, time-wise, even when rounding |
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289 | * errors are against us. |
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290 | * This value is good at least till the year 4000. |
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291 | * Better solutions welcome. |
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292 | */ |
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293 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
178 | |
294 | |
179 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
295 | #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) */ |
296 | #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 */ |
297 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
183 | |
298 | |
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 |
299 | #if __GNUC__ >= 4 |
191 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
300 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
192 | # define inline static inline |
301 | # define noinline __attribute__ ((noinline)) |
193 | #else |
302 | #else |
194 | # define expect(expr,value) (expr) |
303 | # define expect(expr,value) (expr) |
195 | # define inline static |
304 | # define noinline |
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305 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
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306 | # define inline |
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307 | # endif |
196 | #endif |
308 | #endif |
197 | |
309 | |
198 | #define expect_false(expr) expect ((expr) != 0, 0) |
310 | #define expect_false(expr) expect ((expr) != 0, 0) |
199 | #define expect_true(expr) expect ((expr) != 0, 1) |
311 | #define expect_true(expr) expect ((expr) != 0, 1) |
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312 | #define inline_size static inline |
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313 | |
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314 | #if EV_MINIMAL |
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315 | # define inline_speed static noinline |
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316 | #else |
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317 | # define inline_speed static inline |
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318 | #endif |
200 | |
319 | |
201 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
320 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
202 | #define ABSPRI(w) ((w)->priority - EV_MINPRI) |
321 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
203 | |
322 | |
204 | #define EMPTY0 /* required for microsofts broken pseudo-c compiler */ |
323 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
205 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
324 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
206 | |
325 | |
207 | typedef struct ev_watcher *W; |
326 | typedef ev_watcher *W; |
208 | typedef struct ev_watcher_list *WL; |
327 | typedef ev_watcher_list *WL; |
209 | typedef struct ev_watcher_time *WT; |
328 | typedef ev_watcher_time *WT; |
210 | |
329 | |
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330 | #if EV_USE_MONOTONIC |
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331 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
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332 | /* giving it a reasonably high chance of working on typical architetcures */ |
211 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
333 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
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334 | #endif |
212 | |
335 | |
213 | #ifdef _WIN32 |
336 | #ifdef _WIN32 |
214 | # include "ev_win32.c" |
337 | # include "ev_win32.c" |
215 | #endif |
338 | #endif |
216 | |
339 | |
217 | /*****************************************************************************/ |
340 | /*****************************************************************************/ |
218 | |
341 | |
219 | static void (*syserr_cb)(const char *msg); |
342 | static void (*syserr_cb)(const char *msg); |
220 | |
343 | |
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344 | void |
221 | void ev_set_syserr_cb (void (*cb)(const char *msg)) |
345 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
222 | { |
346 | { |
223 | syserr_cb = cb; |
347 | syserr_cb = cb; |
224 | } |
348 | } |
225 | |
349 | |
226 | static void |
350 | static void noinline |
227 | syserr (const char *msg) |
351 | syserr (const char *msg) |
228 | { |
352 | { |
229 | if (!msg) |
353 | if (!msg) |
230 | msg = "(libev) system error"; |
354 | msg = "(libev) system error"; |
231 | |
355 | |
… | |
… | |
236 | perror (msg); |
360 | perror (msg); |
237 | abort (); |
361 | abort (); |
238 | } |
362 | } |
239 | } |
363 | } |
240 | |
364 | |
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365 | static void * |
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366 | ev_realloc_emul (void *ptr, long size) |
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367 | { |
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368 | /* some systems, notably openbsd and darwin, fail to properly |
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369 | * implement realloc (x, 0) (as required by both ansi c-98 and |
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370 | * the single unix specification, so work around them here. |
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371 | */ |
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372 | |
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373 | if (size) |
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374 | return realloc (ptr, size); |
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375 | |
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376 | free (ptr); |
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377 | return 0; |
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378 | } |
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379 | |
241 | static void *(*alloc)(void *ptr, long size); |
380 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
242 | |
381 | |
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382 | void |
243 | void ev_set_allocator (void *(*cb)(void *ptr, long size)) |
383 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
244 | { |
384 | { |
245 | alloc = cb; |
385 | alloc = cb; |
246 | } |
386 | } |
247 | |
387 | |
248 | static void * |
388 | inline_speed void * |
249 | ev_realloc (void *ptr, long size) |
389 | ev_realloc (void *ptr, long size) |
250 | { |
390 | { |
251 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
391 | ptr = alloc (ptr, size); |
252 | |
392 | |
253 | if (!ptr && size) |
393 | if (!ptr && size) |
254 | { |
394 | { |
255 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
395 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
256 | abort (); |
396 | abort (); |
… | |
… | |
277 | typedef struct |
417 | typedef struct |
278 | { |
418 | { |
279 | W w; |
419 | W w; |
280 | int events; |
420 | int events; |
281 | } ANPENDING; |
421 | } ANPENDING; |
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422 | |
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423 | #if EV_USE_INOTIFY |
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424 | typedef struct |
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425 | { |
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426 | WL head; |
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427 | } ANFS; |
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428 | #endif |
282 | |
429 | |
283 | #if EV_MULTIPLICITY |
430 | #if EV_MULTIPLICITY |
284 | |
431 | |
285 | struct ev_loop |
432 | struct ev_loop |
286 | { |
433 | { |
… | |
… | |
320 | gettimeofday (&tv, 0); |
467 | gettimeofday (&tv, 0); |
321 | return tv.tv_sec + tv.tv_usec * 1e-6; |
468 | return tv.tv_sec + tv.tv_usec * 1e-6; |
322 | #endif |
469 | #endif |
323 | } |
470 | } |
324 | |
471 | |
325 | inline ev_tstamp |
472 | ev_tstamp inline_size |
326 | get_clock (void) |
473 | get_clock (void) |
327 | { |
474 | { |
328 | #if EV_USE_MONOTONIC |
475 | #if EV_USE_MONOTONIC |
329 | if (expect_true (have_monotonic)) |
476 | if (expect_true (have_monotonic)) |
330 | { |
477 | { |
… | |
… | |
343 | { |
490 | { |
344 | return ev_rt_now; |
491 | return ev_rt_now; |
345 | } |
492 | } |
346 | #endif |
493 | #endif |
347 | |
494 | |
348 | #define array_roundsize(type,n) (((n) | 4) & ~3) |
495 | void |
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496 | ev_sleep (ev_tstamp delay) |
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497 | { |
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498 | if (delay > 0.) |
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499 | { |
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500 | #if EV_USE_NANOSLEEP |
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501 | struct timespec ts; |
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502 | |
|
|
503 | ts.tv_sec = (time_t)delay; |
|
|
504 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
505 | |
|
|
506 | nanosleep (&ts, 0); |
|
|
507 | #elif defined(_WIN32) |
|
|
508 | Sleep ((unsigned long)(delay * 1e3)); |
|
|
509 | #else |
|
|
510 | struct timeval tv; |
|
|
511 | |
|
|
512 | tv.tv_sec = (time_t)delay; |
|
|
513 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
|
|
514 | |
|
|
515 | select (0, 0, 0, 0, &tv); |
|
|
516 | #endif |
|
|
517 | } |
|
|
518 | } |
|
|
519 | |
|
|
520 | /*****************************************************************************/ |
|
|
521 | |
|
|
522 | int inline_size |
|
|
523 | array_nextsize (int elem, int cur, int cnt) |
|
|
524 | { |
|
|
525 | int ncur = cur + 1; |
|
|
526 | |
|
|
527 | do |
|
|
528 | ncur <<= 1; |
|
|
529 | while (cnt > ncur); |
|
|
530 | |
|
|
531 | /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */ |
|
|
532 | if (elem * ncur > 4096) |
|
|
533 | { |
|
|
534 | ncur *= elem; |
|
|
535 | ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095; |
|
|
536 | ncur = ncur - sizeof (void *) * 4; |
|
|
537 | ncur /= elem; |
|
|
538 | } |
|
|
539 | |
|
|
540 | return ncur; |
|
|
541 | } |
|
|
542 | |
|
|
543 | static noinline void * |
|
|
544 | array_realloc (int elem, void *base, int *cur, int cnt) |
|
|
545 | { |
|
|
546 | *cur = array_nextsize (elem, *cur, cnt); |
|
|
547 | return ev_realloc (base, elem * *cur); |
|
|
548 | } |
349 | |
549 | |
350 | #define array_needsize(type,base,cur,cnt,init) \ |
550 | #define array_needsize(type,base,cur,cnt,init) \ |
351 | if (expect_false ((cnt) > cur)) \ |
551 | if (expect_false ((cnt) > (cur))) \ |
352 | { \ |
552 | { \ |
353 | int newcnt = cur; \ |
553 | int ocur_ = (cur); \ |
354 | do \ |
554 | (base) = (type *)array_realloc \ |
355 | { \ |
555 | (sizeof (type), (base), &(cur), (cnt)); \ |
356 | newcnt = array_roundsize (type, newcnt << 1); \ |
556 | init ((base) + (ocur_), (cur) - ocur_); \ |
357 | } \ |
|
|
358 | while ((cnt) > newcnt); \ |
|
|
359 | \ |
|
|
360 | base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\ |
|
|
361 | init (base + cur, newcnt - cur); \ |
|
|
362 | cur = newcnt; \ |
|
|
363 | } |
557 | } |
364 | |
558 | |
|
|
559 | #if 0 |
365 | #define array_slim(type,stem) \ |
560 | #define array_slim(type,stem) \ |
366 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
561 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
367 | { \ |
562 | { \ |
368 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
563 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
369 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
564 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
370 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
565 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
371 | } |
566 | } |
|
|
567 | #endif |
372 | |
568 | |
373 | #define array_free(stem, idx) \ |
569 | #define array_free(stem, idx) \ |
374 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
570 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
375 | |
571 | |
376 | /*****************************************************************************/ |
572 | /*****************************************************************************/ |
377 | |
573 | |
378 | static void |
574 | void noinline |
|
|
575 | ev_feed_event (EV_P_ void *w, int revents) |
|
|
576 | { |
|
|
577 | W w_ = (W)w; |
|
|
578 | int pri = ABSPRI (w_); |
|
|
579 | |
|
|
580 | if (expect_false (w_->pending)) |
|
|
581 | pendings [pri][w_->pending - 1].events |= revents; |
|
|
582 | else |
|
|
583 | { |
|
|
584 | w_->pending = ++pendingcnt [pri]; |
|
|
585 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
|
|
586 | pendings [pri][w_->pending - 1].w = w_; |
|
|
587 | pendings [pri][w_->pending - 1].events = revents; |
|
|
588 | } |
|
|
589 | } |
|
|
590 | |
|
|
591 | void inline_speed |
|
|
592 | queue_events (EV_P_ W *events, int eventcnt, int type) |
|
|
593 | { |
|
|
594 | int i; |
|
|
595 | |
|
|
596 | for (i = 0; i < eventcnt; ++i) |
|
|
597 | ev_feed_event (EV_A_ events [i], type); |
|
|
598 | } |
|
|
599 | |
|
|
600 | /*****************************************************************************/ |
|
|
601 | |
|
|
602 | void inline_size |
379 | anfds_init (ANFD *base, int count) |
603 | anfds_init (ANFD *base, int count) |
380 | { |
604 | { |
381 | while (count--) |
605 | while (count--) |
382 | { |
606 | { |
383 | base->head = 0; |
607 | base->head = 0; |
… | |
… | |
386 | |
610 | |
387 | ++base; |
611 | ++base; |
388 | } |
612 | } |
389 | } |
613 | } |
390 | |
614 | |
391 | void |
615 | void inline_speed |
392 | ev_feed_event (EV_P_ void *w, int revents) |
|
|
393 | { |
|
|
394 | W w_ = (W)w; |
|
|
395 | |
|
|
396 | if (expect_false (w_->pending)) |
|
|
397 | { |
|
|
398 | pendings [ABSPRI (w_)][w_->pending - 1].events |= revents; |
|
|
399 | return; |
|
|
400 | } |
|
|
401 | |
|
|
402 | if (expect_false (!w_->cb)) |
|
|
403 | return; |
|
|
404 | |
|
|
405 | w_->pending = ++pendingcnt [ABSPRI (w_)]; |
|
|
406 | array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2); |
|
|
407 | pendings [ABSPRI (w_)][w_->pending - 1].w = w_; |
|
|
408 | pendings [ABSPRI (w_)][w_->pending - 1].events = revents; |
|
|
409 | } |
|
|
410 | |
|
|
411 | static void |
|
|
412 | queue_events (EV_P_ W *events, int eventcnt, int type) |
|
|
413 | { |
|
|
414 | int i; |
|
|
415 | |
|
|
416 | for (i = 0; i < eventcnt; ++i) |
|
|
417 | ev_feed_event (EV_A_ events [i], type); |
|
|
418 | } |
|
|
419 | |
|
|
420 | inline void |
|
|
421 | fd_event (EV_P_ int fd, int revents) |
616 | fd_event (EV_P_ int fd, int revents) |
422 | { |
617 | { |
423 | ANFD *anfd = anfds + fd; |
618 | ANFD *anfd = anfds + fd; |
424 | struct ev_io *w; |
619 | ev_io *w; |
425 | |
620 | |
426 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
621 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
427 | { |
622 | { |
428 | int ev = w->events & revents; |
623 | int ev = w->events & revents; |
429 | |
624 | |
430 | if (ev) |
625 | if (ev) |
431 | ev_feed_event (EV_A_ (W)w, ev); |
626 | ev_feed_event (EV_A_ (W)w, ev); |
… | |
… | |
433 | } |
628 | } |
434 | |
629 | |
435 | void |
630 | void |
436 | ev_feed_fd_event (EV_P_ int fd, int revents) |
631 | ev_feed_fd_event (EV_P_ int fd, int revents) |
437 | { |
632 | { |
|
|
633 | if (fd >= 0 && fd < anfdmax) |
438 | fd_event (EV_A_ fd, revents); |
634 | fd_event (EV_A_ fd, revents); |
439 | } |
635 | } |
440 | |
636 | |
441 | /*****************************************************************************/ |
637 | void inline_size |
442 | |
|
|
443 | inline void |
|
|
444 | fd_reify (EV_P) |
638 | fd_reify (EV_P) |
445 | { |
639 | { |
446 | int i; |
640 | int i; |
447 | |
641 | |
448 | for (i = 0; i < fdchangecnt; ++i) |
642 | for (i = 0; i < fdchangecnt; ++i) |
449 | { |
643 | { |
450 | int fd = fdchanges [i]; |
644 | int fd = fdchanges [i]; |
451 | ANFD *anfd = anfds + fd; |
645 | ANFD *anfd = anfds + fd; |
452 | struct ev_io *w; |
646 | ev_io *w; |
453 | |
647 | |
454 | int events = 0; |
648 | unsigned char events = 0; |
455 | |
649 | |
456 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
650 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
457 | events |= w->events; |
651 | events |= (unsigned char)w->events; |
458 | |
652 | |
459 | #if EV_SELECT_IS_WINSOCKET |
653 | #if EV_SELECT_IS_WINSOCKET |
460 | if (events) |
654 | if (events) |
461 | { |
655 | { |
462 | unsigned long argp; |
656 | unsigned long argp; |
|
|
657 | #ifdef EV_FD_TO_WIN32_HANDLE |
|
|
658 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
659 | #else |
463 | anfd->handle = _get_osfhandle (fd); |
660 | anfd->handle = _get_osfhandle (fd); |
|
|
661 | #endif |
464 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
662 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
465 | } |
663 | } |
466 | #endif |
664 | #endif |
467 | |
665 | |
|
|
666 | { |
|
|
667 | unsigned char o_events = anfd->events; |
|
|
668 | unsigned char o_reify = anfd->reify; |
|
|
669 | |
468 | anfd->reify = 0; |
670 | anfd->reify = 0; |
469 | |
|
|
470 | backend_modify (EV_A_ fd, anfd->events, events); |
|
|
471 | anfd->events = events; |
671 | anfd->events = events; |
|
|
672 | |
|
|
673 | if (o_events != events || o_reify & EV_IOFDSET) |
|
|
674 | backend_modify (EV_A_ fd, o_events, events); |
|
|
675 | } |
472 | } |
676 | } |
473 | |
677 | |
474 | fdchangecnt = 0; |
678 | fdchangecnt = 0; |
475 | } |
679 | } |
476 | |
680 | |
477 | static void |
681 | void inline_size |
478 | fd_change (EV_P_ int fd) |
682 | fd_change (EV_P_ int fd, int flags) |
479 | { |
683 | { |
480 | if (expect_false (anfds [fd].reify)) |
684 | unsigned char reify = anfds [fd].reify; |
481 | return; |
|
|
482 | |
|
|
483 | anfds [fd].reify = 1; |
685 | anfds [fd].reify |= flags; |
484 | |
686 | |
|
|
687 | if (expect_true (!reify)) |
|
|
688 | { |
485 | ++fdchangecnt; |
689 | ++fdchangecnt; |
486 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
690 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
487 | fdchanges [fdchangecnt - 1] = fd; |
691 | fdchanges [fdchangecnt - 1] = fd; |
|
|
692 | } |
488 | } |
693 | } |
489 | |
694 | |
490 | static void |
695 | void inline_speed |
491 | fd_kill (EV_P_ int fd) |
696 | fd_kill (EV_P_ int fd) |
492 | { |
697 | { |
493 | struct ev_io *w; |
698 | ev_io *w; |
494 | |
699 | |
495 | while ((w = (struct ev_io *)anfds [fd].head)) |
700 | while ((w = (ev_io *)anfds [fd].head)) |
496 | { |
701 | { |
497 | ev_io_stop (EV_A_ w); |
702 | ev_io_stop (EV_A_ w); |
498 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
703 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
499 | } |
704 | } |
500 | } |
705 | } |
501 | |
706 | |
502 | inline int |
707 | int inline_size |
503 | fd_valid (int fd) |
708 | fd_valid (int fd) |
504 | { |
709 | { |
505 | #ifdef _WIN32 |
710 | #ifdef _WIN32 |
506 | return _get_osfhandle (fd) != -1; |
711 | return _get_osfhandle (fd) != -1; |
507 | #else |
712 | #else |
508 | return fcntl (fd, F_GETFD) != -1; |
713 | return fcntl (fd, F_GETFD) != -1; |
509 | #endif |
714 | #endif |
510 | } |
715 | } |
511 | |
716 | |
512 | /* called on EBADF to verify fds */ |
717 | /* called on EBADF to verify fds */ |
513 | static void |
718 | static void noinline |
514 | fd_ebadf (EV_P) |
719 | fd_ebadf (EV_P) |
515 | { |
720 | { |
516 | int fd; |
721 | int fd; |
517 | |
722 | |
518 | for (fd = 0; fd < anfdmax; ++fd) |
723 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
520 | if (!fd_valid (fd) == -1 && errno == EBADF) |
725 | if (!fd_valid (fd) == -1 && errno == EBADF) |
521 | fd_kill (EV_A_ fd); |
726 | fd_kill (EV_A_ fd); |
522 | } |
727 | } |
523 | |
728 | |
524 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
729 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
525 | static void |
730 | static void noinline |
526 | fd_enomem (EV_P) |
731 | fd_enomem (EV_P) |
527 | { |
732 | { |
528 | int fd; |
733 | int fd; |
529 | |
734 | |
530 | for (fd = anfdmax; fd--; ) |
735 | for (fd = anfdmax; fd--; ) |
… | |
… | |
534 | return; |
739 | return; |
535 | } |
740 | } |
536 | } |
741 | } |
537 | |
742 | |
538 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
743 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
539 | static void |
744 | static void noinline |
540 | fd_rearm_all (EV_P) |
745 | fd_rearm_all (EV_P) |
541 | { |
746 | { |
542 | int fd; |
747 | int fd; |
543 | |
748 | |
544 | /* this should be highly optimised to not do anything but set a flag */ |
|
|
545 | for (fd = 0; fd < anfdmax; ++fd) |
749 | for (fd = 0; fd < anfdmax; ++fd) |
546 | if (anfds [fd].events) |
750 | if (anfds [fd].events) |
547 | { |
751 | { |
548 | anfds [fd].events = 0; |
752 | anfds [fd].events = 0; |
549 | fd_change (EV_A_ fd); |
753 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
550 | } |
754 | } |
551 | } |
755 | } |
552 | |
756 | |
553 | /*****************************************************************************/ |
757 | /*****************************************************************************/ |
554 | |
758 | |
555 | static void |
759 | void inline_speed |
556 | upheap (WT *heap, int k) |
760 | upheap (WT *heap, int k) |
557 | { |
761 | { |
558 | WT w = heap [k]; |
762 | WT w = heap [k]; |
559 | |
763 | |
560 | while (k && heap [k >> 1]->at > w->at) |
764 | while (k) |
561 | { |
765 | { |
|
|
766 | int p = (k - 1) >> 1; |
|
|
767 | |
|
|
768 | if (heap [p]->at <= w->at) |
|
|
769 | break; |
|
|
770 | |
562 | heap [k] = heap [k >> 1]; |
771 | heap [k] = heap [p]; |
563 | ((W)heap [k])->active = k + 1; |
772 | ((W)heap [k])->active = k + 1; |
564 | k >>= 1; |
773 | k = p; |
565 | } |
774 | } |
566 | |
775 | |
567 | heap [k] = w; |
776 | heap [k] = w; |
568 | ((W)heap [k])->active = k + 1; |
777 | ((W)heap [k])->active = k + 1; |
569 | |
|
|
570 | } |
778 | } |
571 | |
779 | |
572 | static void |
780 | void inline_speed |
573 | downheap (WT *heap, int N, int k) |
781 | downheap (WT *heap, int N, int k) |
574 | { |
782 | { |
575 | WT w = heap [k]; |
783 | WT w = heap [k]; |
576 | |
784 | |
577 | while (k < (N >> 1)) |
785 | for (;;) |
578 | { |
786 | { |
579 | int j = k << 1; |
787 | int c = (k << 1) + 1; |
580 | |
788 | |
581 | if (j + 1 < N && heap [j]->at > heap [j + 1]->at) |
789 | if (c >= N) |
582 | ++j; |
|
|
583 | |
|
|
584 | if (w->at <= heap [j]->at) |
|
|
585 | break; |
790 | break; |
586 | |
791 | |
|
|
792 | c += c + 1 < N && heap [c]->at > heap [c + 1]->at |
|
|
793 | ? 1 : 0; |
|
|
794 | |
|
|
795 | if (w->at <= heap [c]->at) |
|
|
796 | break; |
|
|
797 | |
587 | heap [k] = heap [j]; |
798 | heap [k] = heap [c]; |
588 | ((W)heap [k])->active = k + 1; |
799 | ((W)heap [k])->active = k + 1; |
|
|
800 | |
589 | k = j; |
801 | k = c; |
590 | } |
802 | } |
591 | |
803 | |
592 | heap [k] = w; |
804 | heap [k] = w; |
593 | ((W)heap [k])->active = k + 1; |
805 | ((W)heap [k])->active = k + 1; |
594 | } |
806 | } |
595 | |
807 | |
596 | inline void |
808 | void inline_size |
597 | adjustheap (WT *heap, int N, int k) |
809 | adjustheap (WT *heap, int N, int k) |
598 | { |
810 | { |
599 | upheap (heap, k); |
811 | upheap (heap, k); |
600 | downheap (heap, N, k); |
812 | downheap (heap, N, k); |
601 | } |
813 | } |
… | |
… | |
603 | /*****************************************************************************/ |
815 | /*****************************************************************************/ |
604 | |
816 | |
605 | typedef struct |
817 | typedef struct |
606 | { |
818 | { |
607 | WL head; |
819 | WL head; |
608 | sig_atomic_t volatile gotsig; |
820 | EV_ATOMIC_T gotsig; |
609 | } ANSIG; |
821 | } ANSIG; |
610 | |
822 | |
611 | static ANSIG *signals; |
823 | static ANSIG *signals; |
612 | static int signalmax; |
824 | static int signalmax; |
613 | |
825 | |
614 | static int sigpipe [2]; |
826 | static EV_ATOMIC_T gotsig; |
615 | static sig_atomic_t volatile gotsig; |
|
|
616 | static struct ev_io sigev; |
|
|
617 | |
827 | |
618 | static void |
828 | void inline_size |
619 | signals_init (ANSIG *base, int count) |
829 | signals_init (ANSIG *base, int count) |
620 | { |
830 | { |
621 | while (count--) |
831 | while (count--) |
622 | { |
832 | { |
623 | base->head = 0; |
833 | base->head = 0; |
… | |
… | |
625 | |
835 | |
626 | ++base; |
836 | ++base; |
627 | } |
837 | } |
628 | } |
838 | } |
629 | |
839 | |
630 | static void |
840 | /*****************************************************************************/ |
631 | sighandler (int signum) |
|
|
632 | { |
|
|
633 | #if _WIN32 |
|
|
634 | signal (signum, sighandler); |
|
|
635 | #endif |
|
|
636 | |
841 | |
637 | signals [signum - 1].gotsig = 1; |
842 | void inline_speed |
638 | |
|
|
639 | if (!gotsig) |
|
|
640 | { |
|
|
641 | int old_errno = errno; |
|
|
642 | gotsig = 1; |
|
|
643 | write (sigpipe [1], &signum, 1); |
|
|
644 | errno = old_errno; |
|
|
645 | } |
|
|
646 | } |
|
|
647 | |
|
|
648 | void |
|
|
649 | ev_feed_signal_event (EV_P_ int signum) |
|
|
650 | { |
|
|
651 | WL w; |
|
|
652 | |
|
|
653 | #if EV_MULTIPLICITY |
|
|
654 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
655 | #endif |
|
|
656 | |
|
|
657 | --signum; |
|
|
658 | |
|
|
659 | if (signum < 0 || signum >= signalmax) |
|
|
660 | return; |
|
|
661 | |
|
|
662 | signals [signum].gotsig = 0; |
|
|
663 | |
|
|
664 | for (w = signals [signum].head; w; w = w->next) |
|
|
665 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
666 | } |
|
|
667 | |
|
|
668 | static void |
|
|
669 | sigcb (EV_P_ struct ev_io *iow, int revents) |
|
|
670 | { |
|
|
671 | int signum; |
|
|
672 | |
|
|
673 | read (sigpipe [0], &revents, 1); |
|
|
674 | gotsig = 0; |
|
|
675 | |
|
|
676 | for (signum = signalmax; signum--; ) |
|
|
677 | if (signals [signum].gotsig) |
|
|
678 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
679 | } |
|
|
680 | |
|
|
681 | static void |
|
|
682 | fd_intern (int fd) |
843 | fd_intern (int fd) |
683 | { |
844 | { |
684 | #ifdef _WIN32 |
845 | #ifdef _WIN32 |
685 | int arg = 1; |
846 | int arg = 1; |
686 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
847 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
… | |
… | |
688 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
849 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
689 | fcntl (fd, F_SETFL, O_NONBLOCK); |
850 | fcntl (fd, F_SETFL, O_NONBLOCK); |
690 | #endif |
851 | #endif |
691 | } |
852 | } |
692 | |
853 | |
|
|
854 | static void noinline |
|
|
855 | evpipe_init (EV_P) |
|
|
856 | { |
|
|
857 | if (!ev_is_active (&pipeev)) |
|
|
858 | { |
|
|
859 | #if EV_USE_EVENTFD |
|
|
860 | if ((evfd = eventfd (0, 0)) >= 0) |
|
|
861 | { |
|
|
862 | evpipe [0] = -1; |
|
|
863 | fd_intern (evfd); |
|
|
864 | ev_io_set (&pipeev, evfd, EV_READ); |
|
|
865 | } |
|
|
866 | else |
|
|
867 | #endif |
|
|
868 | { |
|
|
869 | while (pipe (evpipe)) |
|
|
870 | syserr ("(libev) error creating signal/async pipe"); |
|
|
871 | |
|
|
872 | fd_intern (evpipe [0]); |
|
|
873 | fd_intern (evpipe [1]); |
|
|
874 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
|
|
875 | } |
|
|
876 | |
|
|
877 | ev_io_start (EV_A_ &pipeev); |
|
|
878 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
879 | } |
|
|
880 | } |
|
|
881 | |
|
|
882 | void inline_size |
|
|
883 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
884 | { |
|
|
885 | if (!*flag) |
|
|
886 | { |
|
|
887 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
888 | |
|
|
889 | *flag = 1; |
|
|
890 | |
|
|
891 | #if EV_USE_EVENTFD |
|
|
892 | if (evfd >= 0) |
|
|
893 | { |
|
|
894 | uint64_t counter = 1; |
|
|
895 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
896 | } |
|
|
897 | else |
|
|
898 | #endif |
|
|
899 | write (evpipe [1], &old_errno, 1); |
|
|
900 | |
|
|
901 | errno = old_errno; |
|
|
902 | } |
|
|
903 | } |
|
|
904 | |
693 | static void |
905 | static void |
694 | siginit (EV_P) |
906 | pipecb (EV_P_ ev_io *iow, int revents) |
695 | { |
907 | { |
696 | fd_intern (sigpipe [0]); |
908 | #if EV_USE_EVENTFD |
697 | fd_intern (sigpipe [1]); |
909 | if (evfd >= 0) |
|
|
910 | { |
|
|
911 | uint64_t counter = 1; |
|
|
912 | read (evfd, &counter, sizeof (uint64_t)); |
|
|
913 | } |
|
|
914 | else |
|
|
915 | #endif |
|
|
916 | { |
|
|
917 | char dummy; |
|
|
918 | read (evpipe [0], &dummy, 1); |
|
|
919 | } |
698 | |
920 | |
699 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
921 | if (gotsig && ev_is_default_loop (EV_A)) |
700 | ev_io_start (EV_A_ &sigev); |
922 | { |
701 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
923 | int signum; |
|
|
924 | gotsig = 0; |
|
|
925 | |
|
|
926 | for (signum = signalmax; signum--; ) |
|
|
927 | if (signals [signum].gotsig) |
|
|
928 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
929 | } |
|
|
930 | |
|
|
931 | #if EV_ASYNC_ENABLE |
|
|
932 | if (gotasync) |
|
|
933 | { |
|
|
934 | int i; |
|
|
935 | gotasync = 0; |
|
|
936 | |
|
|
937 | for (i = asynccnt; i--; ) |
|
|
938 | if (asyncs [i]->sent) |
|
|
939 | { |
|
|
940 | asyncs [i]->sent = 0; |
|
|
941 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
|
|
942 | } |
|
|
943 | } |
|
|
944 | #endif |
702 | } |
945 | } |
703 | |
946 | |
704 | /*****************************************************************************/ |
947 | /*****************************************************************************/ |
705 | |
948 | |
706 | static struct ev_child *childs [PID_HASHSIZE]; |
949 | static void |
|
|
950 | ev_sighandler (int signum) |
|
|
951 | { |
|
|
952 | #if EV_MULTIPLICITY |
|
|
953 | struct ev_loop *loop = &default_loop_struct; |
|
|
954 | #endif |
|
|
955 | |
|
|
956 | #if _WIN32 |
|
|
957 | signal (signum, ev_sighandler); |
|
|
958 | #endif |
|
|
959 | |
|
|
960 | signals [signum - 1].gotsig = 1; |
|
|
961 | evpipe_write (EV_A_ &gotsig); |
|
|
962 | } |
|
|
963 | |
|
|
964 | void noinline |
|
|
965 | ev_feed_signal_event (EV_P_ int signum) |
|
|
966 | { |
|
|
967 | WL w; |
|
|
968 | |
|
|
969 | #if EV_MULTIPLICITY |
|
|
970 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
971 | #endif |
|
|
972 | |
|
|
973 | --signum; |
|
|
974 | |
|
|
975 | if (signum < 0 || signum >= signalmax) |
|
|
976 | return; |
|
|
977 | |
|
|
978 | signals [signum].gotsig = 0; |
|
|
979 | |
|
|
980 | for (w = signals [signum].head; w; w = w->next) |
|
|
981 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
982 | } |
|
|
983 | |
|
|
984 | /*****************************************************************************/ |
|
|
985 | |
|
|
986 | static WL childs [EV_PID_HASHSIZE]; |
707 | |
987 | |
708 | #ifndef _WIN32 |
988 | #ifndef _WIN32 |
709 | |
989 | |
710 | static struct ev_signal childev; |
990 | static ev_signal childev; |
|
|
991 | |
|
|
992 | #ifndef WIFCONTINUED |
|
|
993 | # define WIFCONTINUED(status) 0 |
|
|
994 | #endif |
|
|
995 | |
|
|
996 | void inline_speed |
|
|
997 | child_reap (EV_P_ int chain, int pid, int status) |
|
|
998 | { |
|
|
999 | ev_child *w; |
|
|
1000 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
|
|
1001 | |
|
|
1002 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1003 | { |
|
|
1004 | if ((w->pid == pid || !w->pid) |
|
|
1005 | && (!traced || (w->flags & 1))) |
|
|
1006 | { |
|
|
1007 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
|
|
1008 | w->rpid = pid; |
|
|
1009 | w->rstatus = status; |
|
|
1010 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
|
|
1011 | } |
|
|
1012 | } |
|
|
1013 | } |
711 | |
1014 | |
712 | #ifndef WCONTINUED |
1015 | #ifndef WCONTINUED |
713 | # define WCONTINUED 0 |
1016 | # define WCONTINUED 0 |
714 | #endif |
1017 | #endif |
715 | |
1018 | |
716 | static void |
1019 | static void |
717 | child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status) |
|
|
718 | { |
|
|
719 | struct ev_child *w; |
|
|
720 | |
|
|
721 | for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next) |
|
|
722 | if (w->pid == pid || !w->pid) |
|
|
723 | { |
|
|
724 | ev_priority (w) = ev_priority (sw); /* need to do it *now* */ |
|
|
725 | w->rpid = pid; |
|
|
726 | w->rstatus = status; |
|
|
727 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
|
|
728 | } |
|
|
729 | } |
|
|
730 | |
|
|
731 | static void |
|
|
732 | childcb (EV_P_ struct ev_signal *sw, int revents) |
1020 | childcb (EV_P_ ev_signal *sw, int revents) |
733 | { |
1021 | { |
734 | int pid, status; |
1022 | int pid, status; |
735 | |
1023 | |
|
|
1024 | /* some systems define WCONTINUED but then fail to support it (linux 2.4) */ |
736 | if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
1025 | if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
737 | { |
1026 | if (!WCONTINUED |
|
|
1027 | || errno != EINVAL |
|
|
1028 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
|
|
1029 | return; |
|
|
1030 | |
738 | /* make sure we are called again until all childs have been reaped */ |
1031 | /* make sure we are called again until all children have been reaped */ |
739 | /* we need to do it this way so that the callback gets called before we continue */ |
1032 | /* we need to do it this way so that the callback gets called before we continue */ |
740 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1033 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
741 | |
1034 | |
742 | child_reap (EV_A_ sw, pid, pid, status); |
1035 | child_reap (EV_A_ pid, pid, status); |
|
|
1036 | if (EV_PID_HASHSIZE > 1) |
743 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1037 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
744 | } |
|
|
745 | } |
1038 | } |
746 | |
1039 | |
747 | #endif |
1040 | #endif |
748 | |
1041 | |
749 | /*****************************************************************************/ |
1042 | /*****************************************************************************/ |
… | |
… | |
775 | { |
1068 | { |
776 | return EV_VERSION_MINOR; |
1069 | return EV_VERSION_MINOR; |
777 | } |
1070 | } |
778 | |
1071 | |
779 | /* return true if we are running with elevated privileges and should ignore env variables */ |
1072 | /* return true if we are running with elevated privileges and should ignore env variables */ |
780 | static int |
1073 | int inline_size |
781 | enable_secure (void) |
1074 | enable_secure (void) |
782 | { |
1075 | { |
783 | #ifdef _WIN32 |
1076 | #ifdef _WIN32 |
784 | return 0; |
1077 | return 0; |
785 | #else |
1078 | #else |
… | |
… | |
821 | } |
1114 | } |
822 | |
1115 | |
823 | unsigned int |
1116 | unsigned int |
824 | ev_embeddable_backends (void) |
1117 | ev_embeddable_backends (void) |
825 | { |
1118 | { |
826 | return EVBACKEND_EPOLL |
1119 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
827 | | EVBACKEND_KQUEUE |
1120 | |
828 | | EVBACKEND_PORT; |
1121 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
|
|
1122 | /* please fix it and tell me how to detect the fix */ |
|
|
1123 | flags &= ~EVBACKEND_EPOLL; |
|
|
1124 | |
|
|
1125 | return flags; |
829 | } |
1126 | } |
830 | |
1127 | |
831 | unsigned int |
1128 | unsigned int |
832 | ev_backend (EV_P) |
1129 | ev_backend (EV_P) |
833 | { |
1130 | { |
834 | return backend; |
1131 | return backend; |
835 | } |
1132 | } |
836 | |
1133 | |
837 | static void |
1134 | unsigned int |
|
|
1135 | ev_loop_count (EV_P) |
|
|
1136 | { |
|
|
1137 | return loop_count; |
|
|
1138 | } |
|
|
1139 | |
|
|
1140 | void |
|
|
1141 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1142 | { |
|
|
1143 | io_blocktime = interval; |
|
|
1144 | } |
|
|
1145 | |
|
|
1146 | void |
|
|
1147 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1148 | { |
|
|
1149 | timeout_blocktime = interval; |
|
|
1150 | } |
|
|
1151 | |
|
|
1152 | static void noinline |
838 | loop_init (EV_P_ unsigned int flags) |
1153 | loop_init (EV_P_ unsigned int flags) |
839 | { |
1154 | { |
840 | if (!backend) |
1155 | if (!backend) |
841 | { |
1156 | { |
842 | #if EV_USE_MONOTONIC |
1157 | #if EV_USE_MONOTONIC |
… | |
… | |
845 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1160 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
846 | have_monotonic = 1; |
1161 | have_monotonic = 1; |
847 | } |
1162 | } |
848 | #endif |
1163 | #endif |
849 | |
1164 | |
850 | ev_rt_now = ev_time (); |
1165 | ev_rt_now = ev_time (); |
851 | mn_now = get_clock (); |
1166 | mn_now = get_clock (); |
852 | now_floor = mn_now; |
1167 | now_floor = mn_now; |
853 | rtmn_diff = ev_rt_now - mn_now; |
1168 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1169 | |
|
|
1170 | io_blocktime = 0.; |
|
|
1171 | timeout_blocktime = 0.; |
|
|
1172 | backend = 0; |
|
|
1173 | backend_fd = -1; |
|
|
1174 | gotasync = 0; |
|
|
1175 | #if EV_USE_INOTIFY |
|
|
1176 | fs_fd = -2; |
|
|
1177 | #endif |
|
|
1178 | |
|
|
1179 | /* pid check not overridable via env */ |
|
|
1180 | #ifndef _WIN32 |
|
|
1181 | if (flags & EVFLAG_FORKCHECK) |
|
|
1182 | curpid = getpid (); |
|
|
1183 | #endif |
854 | |
1184 | |
855 | if (!(flags & EVFLAG_NOENV) |
1185 | if (!(flags & EVFLAG_NOENV) |
856 | && !enable_secure () |
1186 | && !enable_secure () |
857 | && getenv ("LIBEV_FLAGS")) |
1187 | && getenv ("LIBEV_FLAGS")) |
858 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1188 | flags = atoi (getenv ("LIBEV_FLAGS")); |
859 | |
1189 | |
860 | if (!(flags & 0x0000ffffUL)) |
1190 | if (!(flags & 0x0000ffffUL)) |
861 | flags |= ev_recommended_backends (); |
1191 | flags |= ev_recommended_backends (); |
862 | |
1192 | |
863 | backend = 0; |
|
|
864 | #if EV_USE_PORT |
1193 | #if EV_USE_PORT |
865 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1194 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
866 | #endif |
1195 | #endif |
867 | #if EV_USE_KQUEUE |
1196 | #if EV_USE_KQUEUE |
868 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
1197 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
… | |
… | |
875 | #endif |
1204 | #endif |
876 | #if EV_USE_SELECT |
1205 | #if EV_USE_SELECT |
877 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1206 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
878 | #endif |
1207 | #endif |
879 | |
1208 | |
880 | ev_init (&sigev, sigcb); |
1209 | ev_init (&pipeev, pipecb); |
881 | ev_set_priority (&sigev, EV_MAXPRI); |
1210 | ev_set_priority (&pipeev, EV_MAXPRI); |
882 | } |
1211 | } |
883 | } |
1212 | } |
884 | |
1213 | |
885 | static void |
1214 | static void noinline |
886 | loop_destroy (EV_P) |
1215 | loop_destroy (EV_P) |
887 | { |
1216 | { |
888 | int i; |
1217 | int i; |
|
|
1218 | |
|
|
1219 | if (ev_is_active (&pipeev)) |
|
|
1220 | { |
|
|
1221 | ev_ref (EV_A); /* signal watcher */ |
|
|
1222 | ev_io_stop (EV_A_ &pipeev); |
|
|
1223 | |
|
|
1224 | #if EV_USE_EVENTFD |
|
|
1225 | if (evfd >= 0) |
|
|
1226 | close (evfd); |
|
|
1227 | #endif |
|
|
1228 | |
|
|
1229 | if (evpipe [0] >= 0) |
|
|
1230 | { |
|
|
1231 | close (evpipe [0]); |
|
|
1232 | close (evpipe [1]); |
|
|
1233 | } |
|
|
1234 | } |
|
|
1235 | |
|
|
1236 | #if EV_USE_INOTIFY |
|
|
1237 | if (fs_fd >= 0) |
|
|
1238 | close (fs_fd); |
|
|
1239 | #endif |
|
|
1240 | |
|
|
1241 | if (backend_fd >= 0) |
|
|
1242 | close (backend_fd); |
889 | |
1243 | |
890 | #if EV_USE_PORT |
1244 | #if EV_USE_PORT |
891 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
1245 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
892 | #endif |
1246 | #endif |
893 | #if EV_USE_KQUEUE |
1247 | #if EV_USE_KQUEUE |
… | |
… | |
902 | #if EV_USE_SELECT |
1256 | #if EV_USE_SELECT |
903 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
1257 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
904 | #endif |
1258 | #endif |
905 | |
1259 | |
906 | for (i = NUMPRI; i--; ) |
1260 | for (i = NUMPRI; i--; ) |
|
|
1261 | { |
907 | array_free (pending, [i]); |
1262 | array_free (pending, [i]); |
|
|
1263 | #if EV_IDLE_ENABLE |
|
|
1264 | array_free (idle, [i]); |
|
|
1265 | #endif |
|
|
1266 | } |
|
|
1267 | |
|
|
1268 | ev_free (anfds); anfdmax = 0; |
908 | |
1269 | |
909 | /* have to use the microsoft-never-gets-it-right macro */ |
1270 | /* have to use the microsoft-never-gets-it-right macro */ |
910 | array_free (fdchange, EMPTY0); |
1271 | array_free (fdchange, EMPTY); |
911 | array_free (timer, EMPTY0); |
1272 | array_free (timer, EMPTY); |
912 | #if EV_PERIODICS |
1273 | #if EV_PERIODIC_ENABLE |
913 | array_free (periodic, EMPTY0); |
1274 | array_free (periodic, EMPTY); |
914 | #endif |
1275 | #endif |
|
|
1276 | #if EV_FORK_ENABLE |
915 | array_free (idle, EMPTY0); |
1277 | array_free (fork, EMPTY); |
|
|
1278 | #endif |
916 | array_free (prepare, EMPTY0); |
1279 | array_free (prepare, EMPTY); |
917 | array_free (check, EMPTY0); |
1280 | array_free (check, EMPTY); |
|
|
1281 | #if EV_ASYNC_ENABLE |
|
|
1282 | array_free (async, EMPTY); |
|
|
1283 | #endif |
918 | |
1284 | |
919 | backend = 0; |
1285 | backend = 0; |
920 | } |
1286 | } |
921 | |
1287 | |
922 | static void |
1288 | void inline_size infy_fork (EV_P); |
|
|
1289 | |
|
|
1290 | void inline_size |
923 | loop_fork (EV_P) |
1291 | loop_fork (EV_P) |
924 | { |
1292 | { |
925 | #if EV_USE_PORT |
1293 | #if EV_USE_PORT |
926 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1294 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
927 | #endif |
1295 | #endif |
… | |
… | |
929 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
1297 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
930 | #endif |
1298 | #endif |
931 | #if EV_USE_EPOLL |
1299 | #if EV_USE_EPOLL |
932 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
1300 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
933 | #endif |
1301 | #endif |
|
|
1302 | #if EV_USE_INOTIFY |
|
|
1303 | infy_fork (EV_A); |
|
|
1304 | #endif |
934 | |
1305 | |
935 | if (ev_is_active (&sigev)) |
1306 | if (ev_is_active (&pipeev)) |
936 | { |
1307 | { |
937 | /* default loop */ |
1308 | /* this "locks" the handlers against writing to the pipe */ |
|
|
1309 | /* while we modify the fd vars */ |
|
|
1310 | gotsig = 1; |
|
|
1311 | #if EV_ASYNC_ENABLE |
|
|
1312 | gotasync = 1; |
|
|
1313 | #endif |
938 | |
1314 | |
939 | ev_ref (EV_A); |
1315 | ev_ref (EV_A); |
940 | ev_io_stop (EV_A_ &sigev); |
1316 | ev_io_stop (EV_A_ &pipeev); |
|
|
1317 | |
|
|
1318 | #if EV_USE_EVENTFD |
|
|
1319 | if (evfd >= 0) |
|
|
1320 | close (evfd); |
|
|
1321 | #endif |
|
|
1322 | |
|
|
1323 | if (evpipe [0] >= 0) |
|
|
1324 | { |
941 | close (sigpipe [0]); |
1325 | close (evpipe [0]); |
942 | close (sigpipe [1]); |
1326 | close (evpipe [1]); |
|
|
1327 | } |
943 | |
1328 | |
944 | while (pipe (sigpipe)) |
|
|
945 | syserr ("(libev) error creating pipe"); |
|
|
946 | |
|
|
947 | siginit (EV_A); |
1329 | evpipe_init (EV_A); |
|
|
1330 | /* now iterate over everything, in case we missed something */ |
|
|
1331 | pipecb (EV_A_ &pipeev, EV_READ); |
948 | } |
1332 | } |
949 | |
1333 | |
950 | postfork = 0; |
1334 | postfork = 0; |
951 | } |
1335 | } |
952 | |
1336 | |
… | |
… | |
974 | } |
1358 | } |
975 | |
1359 | |
976 | void |
1360 | void |
977 | ev_loop_fork (EV_P) |
1361 | ev_loop_fork (EV_P) |
978 | { |
1362 | { |
979 | postfork = 1; |
1363 | postfork = 1; /* must be in line with ev_default_fork */ |
980 | } |
1364 | } |
981 | |
1365 | |
982 | #endif |
1366 | #endif |
983 | |
1367 | |
984 | #if EV_MULTIPLICITY |
1368 | #if EV_MULTIPLICITY |
… | |
… | |
987 | #else |
1371 | #else |
988 | int |
1372 | int |
989 | ev_default_loop (unsigned int flags) |
1373 | ev_default_loop (unsigned int flags) |
990 | #endif |
1374 | #endif |
991 | { |
1375 | { |
992 | if (sigpipe [0] == sigpipe [1]) |
|
|
993 | if (pipe (sigpipe)) |
|
|
994 | return 0; |
|
|
995 | |
|
|
996 | if (!ev_default_loop_ptr) |
1376 | if (!ev_default_loop_ptr) |
997 | { |
1377 | { |
998 | #if EV_MULTIPLICITY |
1378 | #if EV_MULTIPLICITY |
999 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1379 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1000 | #else |
1380 | #else |
… | |
… | |
1003 | |
1383 | |
1004 | loop_init (EV_A_ flags); |
1384 | loop_init (EV_A_ flags); |
1005 | |
1385 | |
1006 | if (ev_backend (EV_A)) |
1386 | if (ev_backend (EV_A)) |
1007 | { |
1387 | { |
1008 | siginit (EV_A); |
|
|
1009 | |
|
|
1010 | #ifndef _WIN32 |
1388 | #ifndef _WIN32 |
1011 | ev_signal_init (&childev, childcb, SIGCHLD); |
1389 | ev_signal_init (&childev, childcb, SIGCHLD); |
1012 | ev_set_priority (&childev, EV_MAXPRI); |
1390 | ev_set_priority (&childev, EV_MAXPRI); |
1013 | ev_signal_start (EV_A_ &childev); |
1391 | ev_signal_start (EV_A_ &childev); |
1014 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1392 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
… | |
… | |
1031 | #ifndef _WIN32 |
1409 | #ifndef _WIN32 |
1032 | ev_ref (EV_A); /* child watcher */ |
1410 | ev_ref (EV_A); /* child watcher */ |
1033 | ev_signal_stop (EV_A_ &childev); |
1411 | ev_signal_stop (EV_A_ &childev); |
1034 | #endif |
1412 | #endif |
1035 | |
1413 | |
1036 | ev_ref (EV_A); /* signal watcher */ |
|
|
1037 | ev_io_stop (EV_A_ &sigev); |
|
|
1038 | |
|
|
1039 | close (sigpipe [0]); sigpipe [0] = 0; |
|
|
1040 | close (sigpipe [1]); sigpipe [1] = 0; |
|
|
1041 | |
|
|
1042 | loop_destroy (EV_A); |
1414 | loop_destroy (EV_A); |
1043 | } |
1415 | } |
1044 | |
1416 | |
1045 | void |
1417 | void |
1046 | ev_default_fork (void) |
1418 | ev_default_fork (void) |
… | |
… | |
1048 | #if EV_MULTIPLICITY |
1420 | #if EV_MULTIPLICITY |
1049 | struct ev_loop *loop = ev_default_loop_ptr; |
1421 | struct ev_loop *loop = ev_default_loop_ptr; |
1050 | #endif |
1422 | #endif |
1051 | |
1423 | |
1052 | if (backend) |
1424 | if (backend) |
1053 | postfork = 1; |
1425 | postfork = 1; /* must be in line with ev_loop_fork */ |
1054 | } |
1426 | } |
1055 | |
1427 | |
1056 | /*****************************************************************************/ |
1428 | /*****************************************************************************/ |
1057 | |
1429 | |
1058 | static int |
1430 | void |
1059 | any_pending (EV_P) |
1431 | ev_invoke (EV_P_ void *w, int revents) |
1060 | { |
1432 | { |
1061 | int pri; |
1433 | EV_CB_INVOKE ((W)w, revents); |
1062 | |
|
|
1063 | for (pri = NUMPRI; pri--; ) |
|
|
1064 | if (pendingcnt [pri]) |
|
|
1065 | return 1; |
|
|
1066 | |
|
|
1067 | return 0; |
|
|
1068 | } |
1434 | } |
1069 | |
1435 | |
1070 | inline void |
1436 | void inline_speed |
1071 | call_pending (EV_P) |
1437 | call_pending (EV_P) |
1072 | { |
1438 | { |
1073 | int pri; |
1439 | int pri; |
1074 | |
1440 | |
1075 | for (pri = NUMPRI; pri--; ) |
1441 | for (pri = NUMPRI; pri--; ) |
… | |
… | |
1077 | { |
1443 | { |
1078 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1444 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1079 | |
1445 | |
1080 | if (expect_true (p->w)) |
1446 | if (expect_true (p->w)) |
1081 | { |
1447 | { |
|
|
1448 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
|
|
1449 | |
1082 | p->w->pending = 0; |
1450 | p->w->pending = 0; |
1083 | EV_CB_INVOKE (p->w, p->events); |
1451 | EV_CB_INVOKE (p->w, p->events); |
1084 | } |
1452 | } |
1085 | } |
1453 | } |
1086 | } |
1454 | } |
1087 | |
1455 | |
1088 | inline void |
1456 | void inline_size |
1089 | timers_reify (EV_P) |
1457 | timers_reify (EV_P) |
1090 | { |
1458 | { |
1091 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
1459 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
1092 | { |
1460 | { |
1093 | struct ev_timer *w = timers [0]; |
1461 | ev_timer *w = (ev_timer *)timers [0]; |
1094 | |
1462 | |
1095 | assert (("inactive timer on timer heap detected", ev_is_active (w))); |
1463 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
1096 | |
1464 | |
1097 | /* first reschedule or stop timer */ |
1465 | /* first reschedule or stop timer */ |
1098 | if (w->repeat) |
1466 | if (w->repeat) |
1099 | { |
1467 | { |
1100 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1468 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1101 | |
1469 | |
1102 | ((WT)w)->at += w->repeat; |
1470 | ((WT)w)->at += w->repeat; |
1103 | if (((WT)w)->at < mn_now) |
1471 | if (((WT)w)->at < mn_now) |
1104 | ((WT)w)->at = mn_now; |
1472 | ((WT)w)->at = mn_now; |
1105 | |
1473 | |
1106 | downheap ((WT *)timers, timercnt, 0); |
1474 | downheap (timers, timercnt, 0); |
1107 | } |
1475 | } |
1108 | else |
1476 | else |
1109 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1477 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1110 | |
1478 | |
1111 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
1479 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
1112 | } |
1480 | } |
1113 | } |
1481 | } |
1114 | |
1482 | |
1115 | #if EV_PERIODICS |
1483 | #if EV_PERIODIC_ENABLE |
1116 | inline void |
1484 | void inline_size |
1117 | periodics_reify (EV_P) |
1485 | periodics_reify (EV_P) |
1118 | { |
1486 | { |
1119 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
1487 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
1120 | { |
1488 | { |
1121 | struct ev_periodic *w = periodics [0]; |
1489 | ev_periodic *w = (ev_periodic *)periodics [0]; |
1122 | |
1490 | |
1123 | assert (("inactive timer on periodic heap detected", ev_is_active (w))); |
1491 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
1124 | |
1492 | |
1125 | /* first reschedule or stop timer */ |
1493 | /* first reschedule or stop timer */ |
1126 | if (w->reschedule_cb) |
1494 | if (w->reschedule_cb) |
1127 | { |
1495 | { |
1128 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); |
1496 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); |
1129 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
1497 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
1130 | downheap ((WT *)periodics, periodiccnt, 0); |
1498 | downheap (periodics, periodiccnt, 0); |
1131 | } |
1499 | } |
1132 | else if (w->interval) |
1500 | else if (w->interval) |
1133 | { |
1501 | { |
1134 | ((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
1502 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1503 | if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval; |
1135 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
1504 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
1136 | downheap ((WT *)periodics, periodiccnt, 0); |
1505 | downheap (periodics, periodiccnt, 0); |
1137 | } |
1506 | } |
1138 | else |
1507 | else |
1139 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1508 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1140 | |
1509 | |
1141 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
1510 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
1142 | } |
1511 | } |
1143 | } |
1512 | } |
1144 | |
1513 | |
1145 | static void |
1514 | static void noinline |
1146 | periodics_reschedule (EV_P) |
1515 | periodics_reschedule (EV_P) |
1147 | { |
1516 | { |
1148 | int i; |
1517 | int i; |
1149 | |
1518 | |
1150 | /* adjust periodics after time jump */ |
1519 | /* adjust periodics after time jump */ |
1151 | for (i = 0; i < periodiccnt; ++i) |
1520 | for (i = 0; i < periodiccnt; ++i) |
1152 | { |
1521 | { |
1153 | struct ev_periodic *w = periodics [i]; |
1522 | ev_periodic *w = (ev_periodic *)periodics [i]; |
1154 | |
1523 | |
1155 | if (w->reschedule_cb) |
1524 | if (w->reschedule_cb) |
1156 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1525 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1157 | else if (w->interval) |
1526 | else if (w->interval) |
1158 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1527 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1159 | } |
1528 | } |
1160 | |
1529 | |
1161 | /* now rebuild the heap */ |
1530 | /* now rebuild the heap */ |
1162 | for (i = periodiccnt >> 1; i--; ) |
1531 | for (i = periodiccnt >> 1; i--; ) |
1163 | downheap ((WT *)periodics, periodiccnt, i); |
1532 | downheap (periodics, periodiccnt, i); |
1164 | } |
1533 | } |
1165 | #endif |
1534 | #endif |
1166 | |
1535 | |
1167 | inline int |
1536 | #if EV_IDLE_ENABLE |
1168 | time_update_monotonic (EV_P) |
1537 | void inline_size |
|
|
1538 | idle_reify (EV_P) |
1169 | { |
1539 | { |
|
|
1540 | if (expect_false (idleall)) |
|
|
1541 | { |
|
|
1542 | int pri; |
|
|
1543 | |
|
|
1544 | for (pri = NUMPRI; pri--; ) |
|
|
1545 | { |
|
|
1546 | if (pendingcnt [pri]) |
|
|
1547 | break; |
|
|
1548 | |
|
|
1549 | if (idlecnt [pri]) |
|
|
1550 | { |
|
|
1551 | queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE); |
|
|
1552 | break; |
|
|
1553 | } |
|
|
1554 | } |
|
|
1555 | } |
|
|
1556 | } |
|
|
1557 | #endif |
|
|
1558 | |
|
|
1559 | void inline_speed |
|
|
1560 | time_update (EV_P_ ev_tstamp max_block) |
|
|
1561 | { |
|
|
1562 | int i; |
|
|
1563 | |
|
|
1564 | #if EV_USE_MONOTONIC |
|
|
1565 | if (expect_true (have_monotonic)) |
|
|
1566 | { |
|
|
1567 | ev_tstamp odiff = rtmn_diff; |
|
|
1568 | |
1170 | mn_now = get_clock (); |
1569 | mn_now = get_clock (); |
1171 | |
1570 | |
|
|
1571 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
|
|
1572 | /* interpolate in the meantime */ |
1172 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1573 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1173 | { |
1574 | { |
1174 | ev_rt_now = rtmn_diff + mn_now; |
1575 | ev_rt_now = rtmn_diff + mn_now; |
1175 | return 0; |
1576 | return; |
1176 | } |
1577 | } |
1177 | else |
1578 | |
1178 | { |
|
|
1179 | now_floor = mn_now; |
1579 | now_floor = mn_now; |
1180 | ev_rt_now = ev_time (); |
1580 | ev_rt_now = ev_time (); |
1181 | return 1; |
|
|
1182 | } |
|
|
1183 | } |
|
|
1184 | |
1581 | |
1185 | inline void |
1582 | /* loop a few times, before making important decisions. |
1186 | time_update (EV_P) |
1583 | * on the choice of "4": one iteration isn't enough, |
1187 | { |
1584 | * in case we get preempted during the calls to |
1188 | int i; |
1585 | * ev_time and get_clock. a second call is almost guaranteed |
1189 | |
1586 | * to succeed in that case, though. and looping a few more times |
1190 | #if EV_USE_MONOTONIC |
1587 | * doesn't hurt either as we only do this on time-jumps or |
1191 | if (expect_true (have_monotonic)) |
1588 | * in the unlikely event of having been preempted here. |
1192 | { |
1589 | */ |
1193 | if (time_update_monotonic (EV_A)) |
1590 | for (i = 4; --i; ) |
1194 | { |
1591 | { |
1195 | ev_tstamp odiff = rtmn_diff; |
|
|
1196 | |
|
|
1197 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
|
|
1198 | { |
|
|
1199 | rtmn_diff = ev_rt_now - mn_now; |
1592 | rtmn_diff = ev_rt_now - mn_now; |
1200 | |
1593 | |
1201 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1594 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1202 | return; /* all is well */ |
1595 | return; /* all is well */ |
1203 | |
1596 | |
1204 | ev_rt_now = ev_time (); |
1597 | ev_rt_now = ev_time (); |
1205 | mn_now = get_clock (); |
1598 | mn_now = get_clock (); |
1206 | now_floor = mn_now; |
1599 | now_floor = mn_now; |
1207 | } |
1600 | } |
1208 | |
1601 | |
1209 | # if EV_PERIODICS |
1602 | # if EV_PERIODIC_ENABLE |
|
|
1603 | periodics_reschedule (EV_A); |
|
|
1604 | # endif |
|
|
1605 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1606 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1607 | } |
|
|
1608 | else |
|
|
1609 | #endif |
|
|
1610 | { |
|
|
1611 | ev_rt_now = ev_time (); |
|
|
1612 | |
|
|
1613 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
|
|
1614 | { |
|
|
1615 | #if EV_PERIODIC_ENABLE |
1210 | periodics_reschedule (EV_A); |
1616 | periodics_reschedule (EV_A); |
1211 | # endif |
1617 | #endif |
1212 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1213 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1214 | } |
|
|
1215 | } |
|
|
1216 | else |
|
|
1217 | #endif |
|
|
1218 | { |
|
|
1219 | ev_rt_now = ev_time (); |
|
|
1220 | |
|
|
1221 | if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
|
|
1222 | { |
|
|
1223 | #if EV_PERIODICS |
|
|
1224 | periodics_reschedule (EV_A); |
|
|
1225 | #endif |
|
|
1226 | |
|
|
1227 | /* adjust timers. this is easy, as the offset is the same for all */ |
1618 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
1228 | for (i = 0; i < timercnt; ++i) |
1619 | for (i = 0; i < timercnt; ++i) |
1229 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
1620 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
1230 | } |
1621 | } |
1231 | |
1622 | |
1232 | mn_now = ev_rt_now; |
1623 | mn_now = ev_rt_now; |
… | |
… | |
1248 | static int loop_done; |
1639 | static int loop_done; |
1249 | |
1640 | |
1250 | void |
1641 | void |
1251 | ev_loop (EV_P_ int flags) |
1642 | ev_loop (EV_P_ int flags) |
1252 | { |
1643 | { |
1253 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) |
1644 | loop_done = EVUNLOOP_CANCEL; |
1254 | ? EVUNLOOP_ONE |
|
|
1255 | : EVUNLOOP_CANCEL; |
|
|
1256 | |
1645 | |
1257 | while (activecnt) |
1646 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
|
|
1647 | |
|
|
1648 | do |
1258 | { |
1649 | { |
|
|
1650 | #ifndef _WIN32 |
|
|
1651 | if (expect_false (curpid)) /* penalise the forking check even more */ |
|
|
1652 | if (expect_false (getpid () != curpid)) |
|
|
1653 | { |
|
|
1654 | curpid = getpid (); |
|
|
1655 | postfork = 1; |
|
|
1656 | } |
|
|
1657 | #endif |
|
|
1658 | |
|
|
1659 | #if EV_FORK_ENABLE |
|
|
1660 | /* we might have forked, so queue fork handlers */ |
|
|
1661 | if (expect_false (postfork)) |
|
|
1662 | if (forkcnt) |
|
|
1663 | { |
|
|
1664 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
|
|
1665 | call_pending (EV_A); |
|
|
1666 | } |
|
|
1667 | #endif |
|
|
1668 | |
1259 | /* queue check watchers (and execute them) */ |
1669 | /* queue prepare watchers (and execute them) */ |
1260 | if (expect_false (preparecnt)) |
1670 | if (expect_false (preparecnt)) |
1261 | { |
1671 | { |
1262 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1672 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1263 | call_pending (EV_A); |
1673 | call_pending (EV_A); |
1264 | } |
1674 | } |
1265 | |
1675 | |
|
|
1676 | if (expect_false (!activecnt)) |
|
|
1677 | break; |
|
|
1678 | |
1266 | /* we might have forked, so reify kernel state if necessary */ |
1679 | /* we might have forked, so reify kernel state if necessary */ |
1267 | if (expect_false (postfork)) |
1680 | if (expect_false (postfork)) |
1268 | loop_fork (EV_A); |
1681 | loop_fork (EV_A); |
1269 | |
1682 | |
1270 | /* update fd-related kernel structures */ |
1683 | /* update fd-related kernel structures */ |
1271 | fd_reify (EV_A); |
1684 | fd_reify (EV_A); |
1272 | |
1685 | |
1273 | /* calculate blocking time */ |
1686 | /* calculate blocking time */ |
1274 | { |
1687 | { |
1275 | double block; |
1688 | ev_tstamp waittime = 0.; |
|
|
1689 | ev_tstamp sleeptime = 0.; |
1276 | |
1690 | |
1277 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
1691 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
1278 | block = 0.; /* do not block at all */ |
|
|
1279 | else |
|
|
1280 | { |
1692 | { |
1281 | /* update time to cancel out callback processing overhead */ |
1693 | /* update time to cancel out callback processing overhead */ |
1282 | #if EV_USE_MONOTONIC |
|
|
1283 | if (expect_true (have_monotonic)) |
|
|
1284 | time_update_monotonic (EV_A); |
1694 | time_update (EV_A_ 1e100); |
1285 | else |
|
|
1286 | #endif |
|
|
1287 | { |
|
|
1288 | ev_rt_now = ev_time (); |
|
|
1289 | mn_now = ev_rt_now; |
|
|
1290 | } |
|
|
1291 | |
1695 | |
1292 | block = MAX_BLOCKTIME; |
1696 | waittime = MAX_BLOCKTIME; |
1293 | |
1697 | |
1294 | if (timercnt) |
1698 | if (timercnt) |
1295 | { |
1699 | { |
1296 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
1700 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
1297 | if (block > to) block = to; |
1701 | if (waittime > to) waittime = to; |
1298 | } |
1702 | } |
1299 | |
1703 | |
1300 | #if EV_PERIODICS |
1704 | #if EV_PERIODIC_ENABLE |
1301 | if (periodiccnt) |
1705 | if (periodiccnt) |
1302 | { |
1706 | { |
1303 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
1707 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
1304 | if (block > to) block = to; |
1708 | if (waittime > to) waittime = to; |
1305 | } |
1709 | } |
1306 | #endif |
1710 | #endif |
1307 | |
1711 | |
1308 | if (expect_false (block < 0.)) block = 0.; |
1712 | if (expect_false (waittime < timeout_blocktime)) |
|
|
1713 | waittime = timeout_blocktime; |
|
|
1714 | |
|
|
1715 | sleeptime = waittime - backend_fudge; |
|
|
1716 | |
|
|
1717 | if (expect_true (sleeptime > io_blocktime)) |
|
|
1718 | sleeptime = io_blocktime; |
|
|
1719 | |
|
|
1720 | if (sleeptime) |
|
|
1721 | { |
|
|
1722 | ev_sleep (sleeptime); |
|
|
1723 | waittime -= sleeptime; |
|
|
1724 | } |
1309 | } |
1725 | } |
1310 | |
1726 | |
|
|
1727 | ++loop_count; |
1311 | backend_poll (EV_A_ block); |
1728 | backend_poll (EV_A_ waittime); |
|
|
1729 | |
|
|
1730 | /* update ev_rt_now, do magic */ |
|
|
1731 | time_update (EV_A_ waittime + sleeptime); |
1312 | } |
1732 | } |
1313 | |
|
|
1314 | /* update ev_rt_now, do magic */ |
|
|
1315 | time_update (EV_A); |
|
|
1316 | |
1733 | |
1317 | /* queue pending timers and reschedule them */ |
1734 | /* queue pending timers and reschedule them */ |
1318 | timers_reify (EV_A); /* relative timers called last */ |
1735 | timers_reify (EV_A); /* relative timers called last */ |
1319 | #if EV_PERIODICS |
1736 | #if EV_PERIODIC_ENABLE |
1320 | periodics_reify (EV_A); /* absolute timers called first */ |
1737 | periodics_reify (EV_A); /* absolute timers called first */ |
1321 | #endif |
1738 | #endif |
1322 | |
1739 | |
|
|
1740 | #if EV_IDLE_ENABLE |
1323 | /* queue idle watchers unless io or timers are pending */ |
1741 | /* queue idle watchers unless other events are pending */ |
1324 | if (idlecnt && !any_pending (EV_A)) |
1742 | idle_reify (EV_A); |
1325 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
1743 | #endif |
1326 | |
1744 | |
1327 | /* queue check watchers, to be executed first */ |
1745 | /* queue check watchers, to be executed first */ |
1328 | if (expect_false (checkcnt)) |
1746 | if (expect_false (checkcnt)) |
1329 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1747 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1330 | |
1748 | |
1331 | call_pending (EV_A); |
1749 | call_pending (EV_A); |
1332 | |
|
|
1333 | if (expect_false (loop_done)) |
|
|
1334 | break; |
|
|
1335 | } |
1750 | } |
|
|
1751 | while (expect_true ( |
|
|
1752 | activecnt |
|
|
1753 | && !loop_done |
|
|
1754 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
|
|
1755 | )); |
1336 | |
1756 | |
1337 | if (loop_done == EVUNLOOP_ONE) |
1757 | if (loop_done == EVUNLOOP_ONE) |
1338 | loop_done = EVUNLOOP_CANCEL; |
1758 | loop_done = EVUNLOOP_CANCEL; |
1339 | } |
1759 | } |
1340 | |
1760 | |
… | |
… | |
1344 | loop_done = how; |
1764 | loop_done = how; |
1345 | } |
1765 | } |
1346 | |
1766 | |
1347 | /*****************************************************************************/ |
1767 | /*****************************************************************************/ |
1348 | |
1768 | |
1349 | inline void |
1769 | void inline_size |
1350 | wlist_add (WL *head, WL elem) |
1770 | wlist_add (WL *head, WL elem) |
1351 | { |
1771 | { |
1352 | elem->next = *head; |
1772 | elem->next = *head; |
1353 | *head = elem; |
1773 | *head = elem; |
1354 | } |
1774 | } |
1355 | |
1775 | |
1356 | inline void |
1776 | void inline_size |
1357 | wlist_del (WL *head, WL elem) |
1777 | wlist_del (WL *head, WL elem) |
1358 | { |
1778 | { |
1359 | while (*head) |
1779 | while (*head) |
1360 | { |
1780 | { |
1361 | if (*head == elem) |
1781 | if (*head == elem) |
… | |
… | |
1366 | |
1786 | |
1367 | head = &(*head)->next; |
1787 | head = &(*head)->next; |
1368 | } |
1788 | } |
1369 | } |
1789 | } |
1370 | |
1790 | |
1371 | inline void |
1791 | void inline_speed |
1372 | ev_clear_pending (EV_P_ W w) |
1792 | clear_pending (EV_P_ W w) |
1373 | { |
1793 | { |
1374 | if (w->pending) |
1794 | if (w->pending) |
1375 | { |
1795 | { |
1376 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1796 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1377 | w->pending = 0; |
1797 | w->pending = 0; |
1378 | } |
1798 | } |
1379 | } |
1799 | } |
1380 | |
1800 | |
1381 | inline void |
1801 | int |
|
|
1802 | ev_clear_pending (EV_P_ void *w) |
|
|
1803 | { |
|
|
1804 | W w_ = (W)w; |
|
|
1805 | int pending = w_->pending; |
|
|
1806 | |
|
|
1807 | if (expect_true (pending)) |
|
|
1808 | { |
|
|
1809 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
1810 | w_->pending = 0; |
|
|
1811 | p->w = 0; |
|
|
1812 | return p->events; |
|
|
1813 | } |
|
|
1814 | else |
|
|
1815 | return 0; |
|
|
1816 | } |
|
|
1817 | |
|
|
1818 | void inline_size |
|
|
1819 | pri_adjust (EV_P_ W w) |
|
|
1820 | { |
|
|
1821 | int pri = w->priority; |
|
|
1822 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
|
|
1823 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
|
|
1824 | w->priority = pri; |
|
|
1825 | } |
|
|
1826 | |
|
|
1827 | void inline_speed |
1382 | ev_start (EV_P_ W w, int active) |
1828 | ev_start (EV_P_ W w, int active) |
1383 | { |
1829 | { |
1384 | if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; |
1830 | pri_adjust (EV_A_ w); |
1385 | if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; |
|
|
1386 | |
|
|
1387 | w->active = active; |
1831 | w->active = active; |
1388 | ev_ref (EV_A); |
1832 | ev_ref (EV_A); |
1389 | } |
1833 | } |
1390 | |
1834 | |
1391 | inline void |
1835 | void inline_size |
1392 | ev_stop (EV_P_ W w) |
1836 | ev_stop (EV_P_ W w) |
1393 | { |
1837 | { |
1394 | ev_unref (EV_A); |
1838 | ev_unref (EV_A); |
1395 | w->active = 0; |
1839 | w->active = 0; |
1396 | } |
1840 | } |
1397 | |
1841 | |
1398 | /*****************************************************************************/ |
1842 | /*****************************************************************************/ |
1399 | |
1843 | |
1400 | void |
1844 | void noinline |
1401 | ev_io_start (EV_P_ struct ev_io *w) |
1845 | ev_io_start (EV_P_ ev_io *w) |
1402 | { |
1846 | { |
1403 | int fd = w->fd; |
1847 | int fd = w->fd; |
1404 | |
1848 | |
1405 | if (expect_false (ev_is_active (w))) |
1849 | if (expect_false (ev_is_active (w))) |
1406 | return; |
1850 | return; |
1407 | |
1851 | |
1408 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1852 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1409 | |
1853 | |
1410 | ev_start (EV_A_ (W)w, 1); |
1854 | ev_start (EV_A_ (W)w, 1); |
1411 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
1855 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
1412 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1856 | wlist_add (&anfds[fd].head, (WL)w); |
1413 | |
1857 | |
1414 | fd_change (EV_A_ fd); |
1858 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
|
|
1859 | w->events &= ~EV_IOFDSET; |
1415 | } |
1860 | } |
1416 | |
1861 | |
1417 | void |
1862 | void noinline |
1418 | ev_io_stop (EV_P_ struct ev_io *w) |
1863 | ev_io_stop (EV_P_ ev_io *w) |
1419 | { |
1864 | { |
1420 | ev_clear_pending (EV_A_ (W)w); |
1865 | clear_pending (EV_A_ (W)w); |
1421 | if (expect_false (!ev_is_active (w))) |
1866 | if (expect_false (!ev_is_active (w))) |
1422 | return; |
1867 | return; |
1423 | |
1868 | |
1424 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
1869 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
1425 | |
1870 | |
1426 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
1871 | wlist_del (&anfds[w->fd].head, (WL)w); |
1427 | ev_stop (EV_A_ (W)w); |
1872 | ev_stop (EV_A_ (W)w); |
1428 | |
1873 | |
1429 | fd_change (EV_A_ w->fd); |
1874 | fd_change (EV_A_ w->fd, 1); |
1430 | } |
1875 | } |
1431 | |
1876 | |
1432 | void |
1877 | void noinline |
1433 | ev_timer_start (EV_P_ struct ev_timer *w) |
1878 | ev_timer_start (EV_P_ ev_timer *w) |
1434 | { |
1879 | { |
1435 | if (expect_false (ev_is_active (w))) |
1880 | if (expect_false (ev_is_active (w))) |
1436 | return; |
1881 | return; |
1437 | |
1882 | |
1438 | ((WT)w)->at += mn_now; |
1883 | ((WT)w)->at += mn_now; |
1439 | |
1884 | |
1440 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1885 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1441 | |
1886 | |
1442 | ev_start (EV_A_ (W)w, ++timercnt); |
1887 | ev_start (EV_A_ (W)w, ++timercnt); |
1443 | array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2); |
1888 | array_needsize (WT, timers, timermax, timercnt, EMPTY2); |
1444 | timers [timercnt - 1] = w; |
1889 | timers [timercnt - 1] = (WT)w; |
1445 | upheap ((WT *)timers, timercnt - 1); |
1890 | upheap (timers, timercnt - 1); |
1446 | |
1891 | |
1447 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1892 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
1448 | } |
1893 | } |
1449 | |
1894 | |
1450 | void |
1895 | void noinline |
1451 | ev_timer_stop (EV_P_ struct ev_timer *w) |
1896 | ev_timer_stop (EV_P_ ev_timer *w) |
1452 | { |
1897 | { |
1453 | ev_clear_pending (EV_A_ (W)w); |
1898 | clear_pending (EV_A_ (W)w); |
1454 | if (expect_false (!ev_is_active (w))) |
1899 | if (expect_false (!ev_is_active (w))) |
1455 | return; |
1900 | return; |
1456 | |
1901 | |
1457 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1902 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w)); |
1458 | |
1903 | |
|
|
1904 | { |
|
|
1905 | int active = ((W)w)->active; |
|
|
1906 | |
1459 | if (expect_true (((W)w)->active < timercnt--)) |
1907 | if (expect_true (--active < --timercnt)) |
1460 | { |
1908 | { |
1461 | timers [((W)w)->active - 1] = timers [timercnt]; |
1909 | timers [active] = timers [timercnt]; |
1462 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1910 | adjustheap (timers, timercnt, active); |
1463 | } |
1911 | } |
|
|
1912 | } |
1464 | |
1913 | |
1465 | ((WT)w)->at -= mn_now; |
1914 | ((WT)w)->at -= mn_now; |
1466 | |
1915 | |
1467 | ev_stop (EV_A_ (W)w); |
1916 | ev_stop (EV_A_ (W)w); |
1468 | } |
1917 | } |
1469 | |
1918 | |
1470 | void |
1919 | void noinline |
1471 | ev_timer_again (EV_P_ struct ev_timer *w) |
1920 | ev_timer_again (EV_P_ ev_timer *w) |
1472 | { |
1921 | { |
1473 | if (ev_is_active (w)) |
1922 | if (ev_is_active (w)) |
1474 | { |
1923 | { |
1475 | if (w->repeat) |
1924 | if (w->repeat) |
1476 | { |
1925 | { |
1477 | ((WT)w)->at = mn_now + w->repeat; |
1926 | ((WT)w)->at = mn_now + w->repeat; |
1478 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1927 | adjustheap (timers, timercnt, ((W)w)->active - 1); |
1479 | } |
1928 | } |
1480 | else |
1929 | else |
1481 | ev_timer_stop (EV_A_ w); |
1930 | ev_timer_stop (EV_A_ w); |
1482 | } |
1931 | } |
1483 | else if (w->repeat) |
1932 | else if (w->repeat) |
… | |
… | |
1485 | w->at = w->repeat; |
1934 | w->at = w->repeat; |
1486 | ev_timer_start (EV_A_ w); |
1935 | ev_timer_start (EV_A_ w); |
1487 | } |
1936 | } |
1488 | } |
1937 | } |
1489 | |
1938 | |
1490 | #if EV_PERIODICS |
1939 | #if EV_PERIODIC_ENABLE |
1491 | void |
1940 | void noinline |
1492 | ev_periodic_start (EV_P_ struct ev_periodic *w) |
1941 | ev_periodic_start (EV_P_ ev_periodic *w) |
1493 | { |
1942 | { |
1494 | if (expect_false (ev_is_active (w))) |
1943 | if (expect_false (ev_is_active (w))) |
1495 | return; |
1944 | return; |
1496 | |
1945 | |
1497 | if (w->reschedule_cb) |
1946 | if (w->reschedule_cb) |
1498 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1947 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1499 | else if (w->interval) |
1948 | else if (w->interval) |
1500 | { |
1949 | { |
1501 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1950 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1502 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1951 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1503 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1952 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1504 | } |
1953 | } |
|
|
1954 | else |
|
|
1955 | ((WT)w)->at = w->offset; |
1505 | |
1956 | |
1506 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1957 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1507 | array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); |
1958 | array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2); |
1508 | periodics [periodiccnt - 1] = w; |
1959 | periodics [periodiccnt - 1] = (WT)w; |
1509 | upheap ((WT *)periodics, periodiccnt - 1); |
1960 | upheap (periodics, periodiccnt - 1); |
1510 | |
1961 | |
1511 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1962 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
1512 | } |
1963 | } |
1513 | |
1964 | |
1514 | void |
1965 | void noinline |
1515 | ev_periodic_stop (EV_P_ struct ev_periodic *w) |
1966 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1516 | { |
1967 | { |
1517 | ev_clear_pending (EV_A_ (W)w); |
1968 | clear_pending (EV_A_ (W)w); |
1518 | if (expect_false (!ev_is_active (w))) |
1969 | if (expect_false (!ev_is_active (w))) |
1519 | return; |
1970 | return; |
1520 | |
1971 | |
1521 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1972 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w)); |
1522 | |
1973 | |
|
|
1974 | { |
|
|
1975 | int active = ((W)w)->active; |
|
|
1976 | |
1523 | if (expect_true (((W)w)->active < periodiccnt--)) |
1977 | if (expect_true (--active < --periodiccnt)) |
1524 | { |
1978 | { |
1525 | periodics [((W)w)->active - 1] = periodics [periodiccnt]; |
1979 | periodics [active] = periodics [periodiccnt]; |
1526 | adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); |
1980 | adjustheap (periodics, periodiccnt, active); |
1527 | } |
1981 | } |
|
|
1982 | } |
1528 | |
1983 | |
1529 | ev_stop (EV_A_ (W)w); |
1984 | ev_stop (EV_A_ (W)w); |
1530 | } |
1985 | } |
1531 | |
1986 | |
1532 | void |
1987 | void noinline |
1533 | ev_periodic_again (EV_P_ struct ev_periodic *w) |
1988 | ev_periodic_again (EV_P_ ev_periodic *w) |
1534 | { |
1989 | { |
1535 | /* TODO: use adjustheap and recalculation */ |
1990 | /* TODO: use adjustheap and recalculation */ |
1536 | ev_periodic_stop (EV_A_ w); |
1991 | ev_periodic_stop (EV_A_ w); |
1537 | ev_periodic_start (EV_A_ w); |
1992 | ev_periodic_start (EV_A_ w); |
1538 | } |
1993 | } |
1539 | #endif |
1994 | #endif |
1540 | |
1995 | |
1541 | void |
|
|
1542 | ev_idle_start (EV_P_ struct ev_idle *w) |
|
|
1543 | { |
|
|
1544 | if (expect_false (ev_is_active (w))) |
|
|
1545 | return; |
|
|
1546 | |
|
|
1547 | ev_start (EV_A_ (W)w, ++idlecnt); |
|
|
1548 | array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2); |
|
|
1549 | idles [idlecnt - 1] = w; |
|
|
1550 | } |
|
|
1551 | |
|
|
1552 | void |
|
|
1553 | ev_idle_stop (EV_P_ struct ev_idle *w) |
|
|
1554 | { |
|
|
1555 | ev_clear_pending (EV_A_ (W)w); |
|
|
1556 | if (expect_false (!ev_is_active (w))) |
|
|
1557 | return; |
|
|
1558 | |
|
|
1559 | idles [((W)w)->active - 1] = idles [--idlecnt]; |
|
|
1560 | ev_stop (EV_A_ (W)w); |
|
|
1561 | } |
|
|
1562 | |
|
|
1563 | void |
|
|
1564 | ev_prepare_start (EV_P_ struct ev_prepare *w) |
|
|
1565 | { |
|
|
1566 | if (expect_false (ev_is_active (w))) |
|
|
1567 | return; |
|
|
1568 | |
|
|
1569 | ev_start (EV_A_ (W)w, ++preparecnt); |
|
|
1570 | array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
|
|
1571 | prepares [preparecnt - 1] = w; |
|
|
1572 | } |
|
|
1573 | |
|
|
1574 | void |
|
|
1575 | ev_prepare_stop (EV_P_ struct ev_prepare *w) |
|
|
1576 | { |
|
|
1577 | ev_clear_pending (EV_A_ (W)w); |
|
|
1578 | if (expect_false (!ev_is_active (w))) |
|
|
1579 | return; |
|
|
1580 | |
|
|
1581 | prepares [((W)w)->active - 1] = prepares [--preparecnt]; |
|
|
1582 | ev_stop (EV_A_ (W)w); |
|
|
1583 | } |
|
|
1584 | |
|
|
1585 | void |
|
|
1586 | ev_check_start (EV_P_ struct ev_check *w) |
|
|
1587 | { |
|
|
1588 | if (expect_false (ev_is_active (w))) |
|
|
1589 | return; |
|
|
1590 | |
|
|
1591 | ev_start (EV_A_ (W)w, ++checkcnt); |
|
|
1592 | array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2); |
|
|
1593 | checks [checkcnt - 1] = w; |
|
|
1594 | } |
|
|
1595 | |
|
|
1596 | void |
|
|
1597 | ev_check_stop (EV_P_ struct ev_check *w) |
|
|
1598 | { |
|
|
1599 | ev_clear_pending (EV_A_ (W)w); |
|
|
1600 | if (expect_false (!ev_is_active (w))) |
|
|
1601 | return; |
|
|
1602 | |
|
|
1603 | checks [((W)w)->active - 1] = checks [--checkcnt]; |
|
|
1604 | ev_stop (EV_A_ (W)w); |
|
|
1605 | } |
|
|
1606 | |
|
|
1607 | #ifndef SA_RESTART |
1996 | #ifndef SA_RESTART |
1608 | # define SA_RESTART 0 |
1997 | # define SA_RESTART 0 |
1609 | #endif |
1998 | #endif |
1610 | |
1999 | |
1611 | void |
2000 | void noinline |
1612 | ev_signal_start (EV_P_ struct ev_signal *w) |
2001 | ev_signal_start (EV_P_ ev_signal *w) |
1613 | { |
2002 | { |
1614 | #if EV_MULTIPLICITY |
2003 | #if EV_MULTIPLICITY |
1615 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2004 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1616 | #endif |
2005 | #endif |
1617 | if (expect_false (ev_is_active (w))) |
2006 | if (expect_false (ev_is_active (w))) |
1618 | return; |
2007 | return; |
1619 | |
2008 | |
1620 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2009 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1621 | |
2010 | |
|
|
2011 | evpipe_init (EV_A); |
|
|
2012 | |
|
|
2013 | { |
|
|
2014 | #ifndef _WIN32 |
|
|
2015 | sigset_t full, prev; |
|
|
2016 | sigfillset (&full); |
|
|
2017 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2018 | #endif |
|
|
2019 | |
|
|
2020 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
|
|
2021 | |
|
|
2022 | #ifndef _WIN32 |
|
|
2023 | sigprocmask (SIG_SETMASK, &prev, 0); |
|
|
2024 | #endif |
|
|
2025 | } |
|
|
2026 | |
1622 | ev_start (EV_A_ (W)w, 1); |
2027 | ev_start (EV_A_ (W)w, 1); |
1623 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
|
|
1624 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
2028 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
1625 | |
2029 | |
1626 | if (!((WL)w)->next) |
2030 | if (!((WL)w)->next) |
1627 | { |
2031 | { |
1628 | #if _WIN32 |
2032 | #if _WIN32 |
1629 | signal (w->signum, sighandler); |
2033 | signal (w->signum, ev_sighandler); |
1630 | #else |
2034 | #else |
1631 | struct sigaction sa; |
2035 | struct sigaction sa; |
1632 | sa.sa_handler = sighandler; |
2036 | sa.sa_handler = ev_sighandler; |
1633 | sigfillset (&sa.sa_mask); |
2037 | sigfillset (&sa.sa_mask); |
1634 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2038 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1635 | sigaction (w->signum, &sa, 0); |
2039 | sigaction (w->signum, &sa, 0); |
1636 | #endif |
2040 | #endif |
1637 | } |
2041 | } |
1638 | } |
2042 | } |
1639 | |
2043 | |
1640 | void |
2044 | void noinline |
1641 | ev_signal_stop (EV_P_ struct ev_signal *w) |
2045 | ev_signal_stop (EV_P_ ev_signal *w) |
1642 | { |
2046 | { |
1643 | ev_clear_pending (EV_A_ (W)w); |
2047 | clear_pending (EV_A_ (W)w); |
1644 | if (expect_false (!ev_is_active (w))) |
2048 | if (expect_false (!ev_is_active (w))) |
1645 | return; |
2049 | return; |
1646 | |
2050 | |
1647 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
2051 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
1648 | ev_stop (EV_A_ (W)w); |
2052 | ev_stop (EV_A_ (W)w); |
1649 | |
2053 | |
1650 | if (!signals [w->signum - 1].head) |
2054 | if (!signals [w->signum - 1].head) |
1651 | signal (w->signum, SIG_DFL); |
2055 | signal (w->signum, SIG_DFL); |
1652 | } |
2056 | } |
1653 | |
2057 | |
1654 | void |
2058 | void |
1655 | ev_child_start (EV_P_ struct ev_child *w) |
2059 | ev_child_start (EV_P_ ev_child *w) |
1656 | { |
2060 | { |
1657 | #if EV_MULTIPLICITY |
2061 | #if EV_MULTIPLICITY |
1658 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2062 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1659 | #endif |
2063 | #endif |
1660 | if (expect_false (ev_is_active (w))) |
2064 | if (expect_false (ev_is_active (w))) |
1661 | return; |
2065 | return; |
1662 | |
2066 | |
1663 | ev_start (EV_A_ (W)w, 1); |
2067 | ev_start (EV_A_ (W)w, 1); |
1664 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
2068 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1665 | } |
2069 | } |
1666 | |
2070 | |
1667 | void |
2071 | void |
1668 | ev_child_stop (EV_P_ struct ev_child *w) |
2072 | ev_child_stop (EV_P_ ev_child *w) |
1669 | { |
2073 | { |
1670 | ev_clear_pending (EV_A_ (W)w); |
2074 | clear_pending (EV_A_ (W)w); |
1671 | if (expect_false (!ev_is_active (w))) |
2075 | if (expect_false (!ev_is_active (w))) |
1672 | return; |
2076 | return; |
1673 | |
2077 | |
1674 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
2078 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1675 | ev_stop (EV_A_ (W)w); |
2079 | ev_stop (EV_A_ (W)w); |
1676 | } |
2080 | } |
1677 | |
2081 | |
1678 | #if EV_MULTIPLICITY |
2082 | #if EV_STAT_ENABLE |
|
|
2083 | |
|
|
2084 | # ifdef _WIN32 |
|
|
2085 | # undef lstat |
|
|
2086 | # define lstat(a,b) _stati64 (a,b) |
|
|
2087 | # endif |
|
|
2088 | |
|
|
2089 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
2090 | #define MIN_STAT_INTERVAL 0.1074891 |
|
|
2091 | |
|
|
2092 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
|
|
2093 | |
|
|
2094 | #if EV_USE_INOTIFY |
|
|
2095 | # define EV_INOTIFY_BUFSIZE 8192 |
|
|
2096 | |
|
|
2097 | static void noinline |
|
|
2098 | infy_add (EV_P_ ev_stat *w) |
|
|
2099 | { |
|
|
2100 | 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); |
|
|
2101 | |
|
|
2102 | if (w->wd < 0) |
|
|
2103 | { |
|
|
2104 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
|
|
2105 | |
|
|
2106 | /* monitor some parent directory for speedup hints */ |
|
|
2107 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
|
|
2108 | { |
|
|
2109 | char path [4096]; |
|
|
2110 | strcpy (path, w->path); |
|
|
2111 | |
|
|
2112 | do |
|
|
2113 | { |
|
|
2114 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
|
|
2115 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
|
|
2116 | |
|
|
2117 | char *pend = strrchr (path, '/'); |
|
|
2118 | |
|
|
2119 | if (!pend) |
|
|
2120 | break; /* whoops, no '/', complain to your admin */ |
|
|
2121 | |
|
|
2122 | *pend = 0; |
|
|
2123 | w->wd = inotify_add_watch (fs_fd, path, mask); |
|
|
2124 | } |
|
|
2125 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
|
|
2126 | } |
|
|
2127 | } |
|
|
2128 | else |
|
|
2129 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
2130 | |
|
|
2131 | if (w->wd >= 0) |
|
|
2132 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
2133 | } |
|
|
2134 | |
|
|
2135 | static void noinline |
|
|
2136 | infy_del (EV_P_ ev_stat *w) |
|
|
2137 | { |
|
|
2138 | int slot; |
|
|
2139 | int wd = w->wd; |
|
|
2140 | |
|
|
2141 | if (wd < 0) |
|
|
2142 | return; |
|
|
2143 | |
|
|
2144 | w->wd = -2; |
|
|
2145 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
|
|
2146 | wlist_del (&fs_hash [slot].head, (WL)w); |
|
|
2147 | |
|
|
2148 | /* remove this watcher, if others are watching it, they will rearm */ |
|
|
2149 | inotify_rm_watch (fs_fd, wd); |
|
|
2150 | } |
|
|
2151 | |
|
|
2152 | static void noinline |
|
|
2153 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
|
|
2154 | { |
|
|
2155 | if (slot < 0) |
|
|
2156 | /* overflow, need to check for all hahs slots */ |
|
|
2157 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
2158 | infy_wd (EV_A_ slot, wd, ev); |
|
|
2159 | else |
|
|
2160 | { |
|
|
2161 | WL w_; |
|
|
2162 | |
|
|
2163 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
|
|
2164 | { |
|
|
2165 | ev_stat *w = (ev_stat *)w_; |
|
|
2166 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
|
|
2167 | |
|
|
2168 | if (w->wd == wd || wd == -1) |
|
|
2169 | { |
|
|
2170 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
|
|
2171 | { |
|
|
2172 | w->wd = -1; |
|
|
2173 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
2174 | } |
|
|
2175 | |
|
|
2176 | stat_timer_cb (EV_A_ &w->timer, 0); |
|
|
2177 | } |
|
|
2178 | } |
|
|
2179 | } |
|
|
2180 | } |
|
|
2181 | |
1679 | static void |
2182 | static void |
1680 | embed_cb (EV_P_ struct ev_io *io, int revents) |
2183 | infy_cb (EV_P_ ev_io *w, int revents) |
1681 | { |
2184 | { |
1682 | struct ev_embed *w = (struct ev_embed *)(((char *)io) - offsetof (struct ev_embed, io)); |
2185 | char buf [EV_INOTIFY_BUFSIZE]; |
|
|
2186 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2187 | int ofs; |
|
|
2188 | int len = read (fs_fd, buf, sizeof (buf)); |
1683 | |
2189 | |
|
|
2190 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
|
|
2191 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
2192 | } |
|
|
2193 | |
|
|
2194 | void inline_size |
|
|
2195 | infy_init (EV_P) |
|
|
2196 | { |
|
|
2197 | if (fs_fd != -2) |
|
|
2198 | return; |
|
|
2199 | |
|
|
2200 | fs_fd = inotify_init (); |
|
|
2201 | |
|
|
2202 | if (fs_fd >= 0) |
|
|
2203 | { |
|
|
2204 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
|
|
2205 | ev_set_priority (&fs_w, EV_MAXPRI); |
|
|
2206 | ev_io_start (EV_A_ &fs_w); |
|
|
2207 | } |
|
|
2208 | } |
|
|
2209 | |
|
|
2210 | void inline_size |
|
|
2211 | infy_fork (EV_P) |
|
|
2212 | { |
|
|
2213 | int slot; |
|
|
2214 | |
|
|
2215 | if (fs_fd < 0) |
|
|
2216 | return; |
|
|
2217 | |
|
|
2218 | close (fs_fd); |
|
|
2219 | fs_fd = inotify_init (); |
|
|
2220 | |
|
|
2221 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
2222 | { |
|
|
2223 | WL w_ = fs_hash [slot].head; |
|
|
2224 | fs_hash [slot].head = 0; |
|
|
2225 | |
|
|
2226 | while (w_) |
|
|
2227 | { |
|
|
2228 | ev_stat *w = (ev_stat *)w_; |
|
|
2229 | w_ = w_->next; /* lets us add this watcher */ |
|
|
2230 | |
|
|
2231 | w->wd = -1; |
|
|
2232 | |
|
|
2233 | if (fs_fd >= 0) |
|
|
2234 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
2235 | else |
|
|
2236 | ev_timer_start (EV_A_ &w->timer); |
|
|
2237 | } |
|
|
2238 | |
|
|
2239 | } |
|
|
2240 | } |
|
|
2241 | |
|
|
2242 | #endif |
|
|
2243 | |
|
|
2244 | void |
|
|
2245 | ev_stat_stat (EV_P_ ev_stat *w) |
|
|
2246 | { |
|
|
2247 | if (lstat (w->path, &w->attr) < 0) |
|
|
2248 | w->attr.st_nlink = 0; |
|
|
2249 | else if (!w->attr.st_nlink) |
|
|
2250 | w->attr.st_nlink = 1; |
|
|
2251 | } |
|
|
2252 | |
|
|
2253 | static void noinline |
|
|
2254 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
|
|
2255 | { |
|
|
2256 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
|
|
2257 | |
|
|
2258 | /* we copy this here each the time so that */ |
|
|
2259 | /* prev has the old value when the callback gets invoked */ |
|
|
2260 | w->prev = w->attr; |
|
|
2261 | ev_stat_stat (EV_A_ w); |
|
|
2262 | |
|
|
2263 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
|
|
2264 | if ( |
|
|
2265 | w->prev.st_dev != w->attr.st_dev |
|
|
2266 | || w->prev.st_ino != w->attr.st_ino |
|
|
2267 | || w->prev.st_mode != w->attr.st_mode |
|
|
2268 | || w->prev.st_nlink != w->attr.st_nlink |
|
|
2269 | || w->prev.st_uid != w->attr.st_uid |
|
|
2270 | || w->prev.st_gid != w->attr.st_gid |
|
|
2271 | || w->prev.st_rdev != w->attr.st_rdev |
|
|
2272 | || w->prev.st_size != w->attr.st_size |
|
|
2273 | || w->prev.st_atime != w->attr.st_atime |
|
|
2274 | || w->prev.st_mtime != w->attr.st_mtime |
|
|
2275 | || w->prev.st_ctime != w->attr.st_ctime |
|
|
2276 | ) { |
|
|
2277 | #if EV_USE_INOTIFY |
|
|
2278 | infy_del (EV_A_ w); |
|
|
2279 | infy_add (EV_A_ w); |
|
|
2280 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
2281 | #endif |
|
|
2282 | |
1684 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2283 | ev_feed_event (EV_A_ w, EV_STAT); |
1685 | ev_loop (w->loop, EVLOOP_NONBLOCK); |
2284 | } |
1686 | } |
2285 | } |
1687 | |
2286 | |
1688 | void |
2287 | void |
1689 | ev_embed_start (EV_P_ struct ev_embed *w) |
2288 | ev_stat_start (EV_P_ ev_stat *w) |
1690 | { |
2289 | { |
1691 | if (expect_false (ev_is_active (w))) |
2290 | if (expect_false (ev_is_active (w))) |
1692 | return; |
2291 | return; |
1693 | |
2292 | |
|
|
2293 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2294 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2295 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2296 | |
|
|
2297 | ev_stat_stat (EV_A_ w); |
|
|
2298 | |
|
|
2299 | if (w->interval < MIN_STAT_INTERVAL) |
|
|
2300 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2301 | |
|
|
2302 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
|
|
2303 | ev_set_priority (&w->timer, ev_priority (w)); |
|
|
2304 | |
|
|
2305 | #if EV_USE_INOTIFY |
|
|
2306 | infy_init (EV_A); |
|
|
2307 | |
|
|
2308 | if (fs_fd >= 0) |
|
|
2309 | infy_add (EV_A_ w); |
|
|
2310 | else |
|
|
2311 | #endif |
|
|
2312 | ev_timer_start (EV_A_ &w->timer); |
|
|
2313 | |
|
|
2314 | ev_start (EV_A_ (W)w, 1); |
|
|
2315 | } |
|
|
2316 | |
|
|
2317 | void |
|
|
2318 | ev_stat_stop (EV_P_ ev_stat *w) |
|
|
2319 | { |
|
|
2320 | clear_pending (EV_A_ (W)w); |
|
|
2321 | if (expect_false (!ev_is_active (w))) |
|
|
2322 | return; |
|
|
2323 | |
|
|
2324 | #if EV_USE_INOTIFY |
|
|
2325 | infy_del (EV_A_ w); |
|
|
2326 | #endif |
|
|
2327 | ev_timer_stop (EV_A_ &w->timer); |
|
|
2328 | |
|
|
2329 | ev_stop (EV_A_ (W)w); |
|
|
2330 | } |
|
|
2331 | #endif |
|
|
2332 | |
|
|
2333 | #if EV_IDLE_ENABLE |
|
|
2334 | void |
|
|
2335 | ev_idle_start (EV_P_ ev_idle *w) |
|
|
2336 | { |
|
|
2337 | if (expect_false (ev_is_active (w))) |
|
|
2338 | return; |
|
|
2339 | |
|
|
2340 | pri_adjust (EV_A_ (W)w); |
|
|
2341 | |
1694 | { |
2342 | { |
|
|
2343 | int active = ++idlecnt [ABSPRI (w)]; |
|
|
2344 | |
|
|
2345 | ++idleall; |
|
|
2346 | ev_start (EV_A_ (W)w, active); |
|
|
2347 | |
|
|
2348 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
|
|
2349 | idles [ABSPRI (w)][active - 1] = w; |
|
|
2350 | } |
|
|
2351 | } |
|
|
2352 | |
|
|
2353 | void |
|
|
2354 | ev_idle_stop (EV_P_ ev_idle *w) |
|
|
2355 | { |
|
|
2356 | clear_pending (EV_A_ (W)w); |
|
|
2357 | if (expect_false (!ev_is_active (w))) |
|
|
2358 | return; |
|
|
2359 | |
|
|
2360 | { |
|
|
2361 | int active = ((W)w)->active; |
|
|
2362 | |
|
|
2363 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
|
|
2364 | ((W)idles [ABSPRI (w)][active - 1])->active = active; |
|
|
2365 | |
|
|
2366 | ev_stop (EV_A_ (W)w); |
|
|
2367 | --idleall; |
|
|
2368 | } |
|
|
2369 | } |
|
|
2370 | #endif |
|
|
2371 | |
|
|
2372 | void |
|
|
2373 | ev_prepare_start (EV_P_ ev_prepare *w) |
|
|
2374 | { |
|
|
2375 | if (expect_false (ev_is_active (w))) |
|
|
2376 | return; |
|
|
2377 | |
|
|
2378 | ev_start (EV_A_ (W)w, ++preparecnt); |
|
|
2379 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
|
|
2380 | prepares [preparecnt - 1] = w; |
|
|
2381 | } |
|
|
2382 | |
|
|
2383 | void |
|
|
2384 | ev_prepare_stop (EV_P_ ev_prepare *w) |
|
|
2385 | { |
|
|
2386 | clear_pending (EV_A_ (W)w); |
|
|
2387 | if (expect_false (!ev_is_active (w))) |
|
|
2388 | return; |
|
|
2389 | |
|
|
2390 | { |
|
|
2391 | int active = ((W)w)->active; |
|
|
2392 | prepares [active - 1] = prepares [--preparecnt]; |
|
|
2393 | ((W)prepares [active - 1])->active = active; |
|
|
2394 | } |
|
|
2395 | |
|
|
2396 | ev_stop (EV_A_ (W)w); |
|
|
2397 | } |
|
|
2398 | |
|
|
2399 | void |
|
|
2400 | ev_check_start (EV_P_ ev_check *w) |
|
|
2401 | { |
|
|
2402 | if (expect_false (ev_is_active (w))) |
|
|
2403 | return; |
|
|
2404 | |
|
|
2405 | ev_start (EV_A_ (W)w, ++checkcnt); |
|
|
2406 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
|
|
2407 | checks [checkcnt - 1] = w; |
|
|
2408 | } |
|
|
2409 | |
|
|
2410 | void |
|
|
2411 | ev_check_stop (EV_P_ ev_check *w) |
|
|
2412 | { |
|
|
2413 | clear_pending (EV_A_ (W)w); |
|
|
2414 | if (expect_false (!ev_is_active (w))) |
|
|
2415 | return; |
|
|
2416 | |
|
|
2417 | { |
|
|
2418 | int active = ((W)w)->active; |
|
|
2419 | checks [active - 1] = checks [--checkcnt]; |
|
|
2420 | ((W)checks [active - 1])->active = active; |
|
|
2421 | } |
|
|
2422 | |
|
|
2423 | ev_stop (EV_A_ (W)w); |
|
|
2424 | } |
|
|
2425 | |
|
|
2426 | #if EV_EMBED_ENABLE |
|
|
2427 | void noinline |
|
|
2428 | ev_embed_sweep (EV_P_ ev_embed *w) |
|
|
2429 | { |
|
|
2430 | ev_loop (w->other, EVLOOP_NONBLOCK); |
|
|
2431 | } |
|
|
2432 | |
|
|
2433 | static void |
|
|
2434 | embed_io_cb (EV_P_ ev_io *io, int revents) |
|
|
2435 | { |
|
|
2436 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
|
|
2437 | |
|
|
2438 | if (ev_cb (w)) |
|
|
2439 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
|
|
2440 | else |
|
|
2441 | ev_loop (w->other, EVLOOP_NONBLOCK); |
|
|
2442 | } |
|
|
2443 | |
|
|
2444 | static void |
|
|
2445 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
|
|
2446 | { |
|
|
2447 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
|
|
2448 | |
|
|
2449 | { |
1695 | struct ev_loop *loop = w->loop; |
2450 | struct ev_loop *loop = w->other; |
|
|
2451 | |
|
|
2452 | while (fdchangecnt) |
|
|
2453 | { |
|
|
2454 | fd_reify (EV_A); |
|
|
2455 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
2456 | } |
|
|
2457 | } |
|
|
2458 | } |
|
|
2459 | |
|
|
2460 | #if 0 |
|
|
2461 | static void |
|
|
2462 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
|
|
2463 | { |
|
|
2464 | ev_idle_stop (EV_A_ idle); |
|
|
2465 | } |
|
|
2466 | #endif |
|
|
2467 | |
|
|
2468 | void |
|
|
2469 | ev_embed_start (EV_P_ ev_embed *w) |
|
|
2470 | { |
|
|
2471 | if (expect_false (ev_is_active (w))) |
|
|
2472 | return; |
|
|
2473 | |
|
|
2474 | { |
|
|
2475 | struct ev_loop *loop = w->other; |
1696 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2476 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
1697 | ev_io_init (&w->io, embed_cb, backend_fd, EV_READ); |
2477 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
1698 | } |
2478 | } |
1699 | |
2479 | |
|
|
2480 | ev_set_priority (&w->io, ev_priority (w)); |
1700 | ev_io_start (EV_A_ &w->io); |
2481 | ev_io_start (EV_A_ &w->io); |
|
|
2482 | |
|
|
2483 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
|
|
2484 | ev_set_priority (&w->prepare, EV_MINPRI); |
|
|
2485 | ev_prepare_start (EV_A_ &w->prepare); |
|
|
2486 | |
|
|
2487 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
|
|
2488 | |
1701 | ev_start (EV_A_ (W)w, 1); |
2489 | ev_start (EV_A_ (W)w, 1); |
1702 | } |
2490 | } |
1703 | |
2491 | |
1704 | void |
2492 | void |
1705 | ev_embed_stop (EV_P_ struct ev_embed *w) |
2493 | ev_embed_stop (EV_P_ ev_embed *w) |
1706 | { |
2494 | { |
1707 | ev_clear_pending (EV_A_ (W)w); |
2495 | clear_pending (EV_A_ (W)w); |
1708 | if (expect_false (!ev_is_active (w))) |
2496 | if (expect_false (!ev_is_active (w))) |
1709 | return; |
2497 | return; |
1710 | |
2498 | |
1711 | ev_io_stop (EV_A_ &w->io); |
2499 | ev_io_stop (EV_A_ &w->io); |
|
|
2500 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
2501 | |
1712 | ev_stop (EV_A_ (W)w); |
2502 | ev_stop (EV_A_ (W)w); |
1713 | } |
2503 | } |
1714 | #endif |
2504 | #endif |
1715 | |
2505 | |
|
|
2506 | #if EV_FORK_ENABLE |
|
|
2507 | void |
|
|
2508 | ev_fork_start (EV_P_ ev_fork *w) |
|
|
2509 | { |
|
|
2510 | if (expect_false (ev_is_active (w))) |
|
|
2511 | return; |
|
|
2512 | |
|
|
2513 | ev_start (EV_A_ (W)w, ++forkcnt); |
|
|
2514 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
|
|
2515 | forks [forkcnt - 1] = w; |
|
|
2516 | } |
|
|
2517 | |
|
|
2518 | void |
|
|
2519 | ev_fork_stop (EV_P_ ev_fork *w) |
|
|
2520 | { |
|
|
2521 | clear_pending (EV_A_ (W)w); |
|
|
2522 | if (expect_false (!ev_is_active (w))) |
|
|
2523 | return; |
|
|
2524 | |
|
|
2525 | { |
|
|
2526 | int active = ((W)w)->active; |
|
|
2527 | forks [active - 1] = forks [--forkcnt]; |
|
|
2528 | ((W)forks [active - 1])->active = active; |
|
|
2529 | } |
|
|
2530 | |
|
|
2531 | ev_stop (EV_A_ (W)w); |
|
|
2532 | } |
|
|
2533 | #endif |
|
|
2534 | |
|
|
2535 | #if EV_ASYNC_ENABLE |
|
|
2536 | void |
|
|
2537 | ev_async_start (EV_P_ ev_async *w) |
|
|
2538 | { |
|
|
2539 | if (expect_false (ev_is_active (w))) |
|
|
2540 | return; |
|
|
2541 | |
|
|
2542 | evpipe_init (EV_A); |
|
|
2543 | |
|
|
2544 | ev_start (EV_A_ (W)w, ++asynccnt); |
|
|
2545 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
|
|
2546 | asyncs [asynccnt - 1] = w; |
|
|
2547 | } |
|
|
2548 | |
|
|
2549 | void |
|
|
2550 | ev_async_stop (EV_P_ ev_async *w) |
|
|
2551 | { |
|
|
2552 | clear_pending (EV_A_ (W)w); |
|
|
2553 | if (expect_false (!ev_is_active (w))) |
|
|
2554 | return; |
|
|
2555 | |
|
|
2556 | { |
|
|
2557 | int active = ((W)w)->active; |
|
|
2558 | asyncs [active - 1] = asyncs [--asynccnt]; |
|
|
2559 | ((W)asyncs [active - 1])->active = active; |
|
|
2560 | } |
|
|
2561 | |
|
|
2562 | ev_stop (EV_A_ (W)w); |
|
|
2563 | } |
|
|
2564 | |
|
|
2565 | void |
|
|
2566 | ev_async_send (EV_P_ ev_async *w) |
|
|
2567 | { |
|
|
2568 | w->sent = 1; |
|
|
2569 | evpipe_write (EV_A_ &gotasync); |
|
|
2570 | } |
|
|
2571 | #endif |
|
|
2572 | |
1716 | /*****************************************************************************/ |
2573 | /*****************************************************************************/ |
1717 | |
2574 | |
1718 | struct ev_once |
2575 | struct ev_once |
1719 | { |
2576 | { |
1720 | struct ev_io io; |
2577 | ev_io io; |
1721 | struct ev_timer to; |
2578 | ev_timer to; |
1722 | void (*cb)(int revents, void *arg); |
2579 | void (*cb)(int revents, void *arg); |
1723 | void *arg; |
2580 | void *arg; |
1724 | }; |
2581 | }; |
1725 | |
2582 | |
1726 | static void |
2583 | static void |
… | |
… | |
1735 | |
2592 | |
1736 | cb (revents, arg); |
2593 | cb (revents, arg); |
1737 | } |
2594 | } |
1738 | |
2595 | |
1739 | static void |
2596 | static void |
1740 | once_cb_io (EV_P_ struct ev_io *w, int revents) |
2597 | once_cb_io (EV_P_ ev_io *w, int revents) |
1741 | { |
2598 | { |
1742 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
2599 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
1743 | } |
2600 | } |
1744 | |
2601 | |
1745 | static void |
2602 | static void |
1746 | once_cb_to (EV_P_ struct ev_timer *w, int revents) |
2603 | once_cb_to (EV_P_ ev_timer *w, int revents) |
1747 | { |
2604 | { |
1748 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
2605 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
1749 | } |
2606 | } |
1750 | |
2607 | |
1751 | void |
2608 | void |
… | |
… | |
1775 | ev_timer_set (&once->to, timeout, 0.); |
2632 | ev_timer_set (&once->to, timeout, 0.); |
1776 | ev_timer_start (EV_A_ &once->to); |
2633 | ev_timer_start (EV_A_ &once->to); |
1777 | } |
2634 | } |
1778 | } |
2635 | } |
1779 | |
2636 | |
|
|
2637 | #if EV_MULTIPLICITY |
|
|
2638 | #include "ev_wrap.h" |
|
|
2639 | #endif |
|
|
2640 | |
1780 | #ifdef __cplusplus |
2641 | #ifdef __cplusplus |
1781 | } |
2642 | } |
1782 | #endif |
2643 | #endif |
1783 | |
2644 | |