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 | #ifndef EV_USE_4HEAP |
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241 | # define EV_USE_4HEAP !EV_MINIMAL |
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242 | #endif |
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243 | |
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244 | #ifndef EV_HEAP_CACHE_AT |
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245 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
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246 | #endif |
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247 | |
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248 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
162 | |
249 | |
163 | #ifndef CLOCK_MONOTONIC |
250 | #ifndef CLOCK_MONOTONIC |
164 | # undef EV_USE_MONOTONIC |
251 | # undef EV_USE_MONOTONIC |
165 | # define EV_USE_MONOTONIC 0 |
252 | # define EV_USE_MONOTONIC 0 |
166 | #endif |
253 | #endif |
… | |
… | |
168 | #ifndef CLOCK_REALTIME |
255 | #ifndef CLOCK_REALTIME |
169 | # undef EV_USE_REALTIME |
256 | # undef EV_USE_REALTIME |
170 | # define EV_USE_REALTIME 0 |
257 | # define EV_USE_REALTIME 0 |
171 | #endif |
258 | #endif |
172 | |
259 | |
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260 | #if !EV_STAT_ENABLE |
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261 | # undef EV_USE_INOTIFY |
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262 | # define EV_USE_INOTIFY 0 |
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263 | #endif |
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264 | |
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265 | #if !EV_USE_NANOSLEEP |
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266 | # ifndef _WIN32 |
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267 | # include <sys/select.h> |
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268 | # endif |
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269 | #endif |
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270 | |
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271 | #if EV_USE_INOTIFY |
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272 | # include <sys/inotify.h> |
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273 | #endif |
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274 | |
173 | #if EV_SELECT_IS_WINSOCKET |
275 | #if EV_SELECT_IS_WINSOCKET |
174 | # include <winsock.h> |
276 | # include <winsock.h> |
175 | #endif |
277 | #endif |
176 | |
278 | |
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279 | #if EV_USE_EVENTFD |
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280 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
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281 | # include <stdint.h> |
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282 | # ifdef __cplusplus |
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283 | extern "C" { |
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284 | # endif |
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285 | int eventfd (unsigned int initval, int flags); |
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286 | # ifdef __cplusplus |
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287 | } |
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288 | # endif |
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289 | #endif |
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290 | |
177 | /**/ |
291 | /**/ |
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292 | |
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293 | /* |
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294 | * This is used to avoid floating point rounding problems. |
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295 | * It is added to ev_rt_now when scheduling periodics |
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296 | * to ensure progress, time-wise, even when rounding |
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297 | * errors are against us. |
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298 | * This value is good at least till the year 4000. |
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299 | * Better solutions welcome. |
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300 | */ |
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301 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
178 | |
302 | |
179 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
303 | #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) */ |
304 | #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 */ |
305 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
183 | |
306 | |
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 |
307 | #if __GNUC__ >= 4 |
191 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
308 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
192 | # define inline static inline |
309 | # define noinline __attribute__ ((noinline)) |
193 | #else |
310 | #else |
194 | # define expect(expr,value) (expr) |
311 | # define expect(expr,value) (expr) |
195 | # define inline static |
312 | # define noinline |
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313 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
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314 | # define inline |
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315 | # endif |
196 | #endif |
316 | #endif |
197 | |
317 | |
198 | #define expect_false(expr) expect ((expr) != 0, 0) |
318 | #define expect_false(expr) expect ((expr) != 0, 0) |
199 | #define expect_true(expr) expect ((expr) != 0, 1) |
319 | #define expect_true(expr) expect ((expr) != 0, 1) |
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320 | #define inline_size static inline |
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321 | |
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322 | #if EV_MINIMAL |
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323 | # define inline_speed static noinline |
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324 | #else |
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325 | # define inline_speed static inline |
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326 | #endif |
200 | |
327 | |
201 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
328 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
202 | #define ABSPRI(w) ((w)->priority - EV_MINPRI) |
329 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
203 | |
330 | |
204 | #define EMPTY0 /* required for microsofts broken pseudo-c compiler */ |
331 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
205 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
332 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
206 | |
333 | |
207 | typedef ev_watcher *W; |
334 | typedef ev_watcher *W; |
208 | typedef ev_watcher_list *WL; |
335 | typedef ev_watcher_list *WL; |
209 | typedef ev_watcher_time *WT; |
336 | typedef ev_watcher_time *WT; |
210 | |
337 | |
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338 | #define ev_active(w) ((W)(w))->active |
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339 | #define ev_at(w) ((WT)(w))->at |
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340 | |
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341 | #if EV_USE_MONOTONIC |
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342 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
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343 | /* giving it a reasonably high chance of working on typical architetcures */ |
211 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
344 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
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345 | #endif |
212 | |
346 | |
213 | #ifdef _WIN32 |
347 | #ifdef _WIN32 |
214 | # include "ev_win32.c" |
348 | # include "ev_win32.c" |
215 | #endif |
349 | #endif |
216 | |
350 | |
217 | /*****************************************************************************/ |
351 | /*****************************************************************************/ |
218 | |
352 | |
219 | static void (*syserr_cb)(const char *msg); |
353 | static void (*syserr_cb)(const char *msg); |
220 | |
354 | |
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355 | void |
221 | void ev_set_syserr_cb (void (*cb)(const char *msg)) |
356 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
222 | { |
357 | { |
223 | syserr_cb = cb; |
358 | syserr_cb = cb; |
224 | } |
359 | } |
225 | |
360 | |
226 | static void |
361 | static void noinline |
227 | syserr (const char *msg) |
362 | syserr (const char *msg) |
228 | { |
363 | { |
229 | if (!msg) |
364 | if (!msg) |
230 | msg = "(libev) system error"; |
365 | msg = "(libev) system error"; |
231 | |
366 | |
… | |
… | |
236 | perror (msg); |
371 | perror (msg); |
237 | abort (); |
372 | abort (); |
238 | } |
373 | } |
239 | } |
374 | } |
240 | |
375 | |
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376 | static void * |
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377 | ev_realloc_emul (void *ptr, long size) |
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378 | { |
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379 | /* some systems, notably openbsd and darwin, fail to properly |
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380 | * implement realloc (x, 0) (as required by both ansi c-98 and |
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381 | * the single unix specification, so work around them here. |
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382 | */ |
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383 | |
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384 | if (size) |
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385 | return realloc (ptr, size); |
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386 | |
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387 | free (ptr); |
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388 | return 0; |
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389 | } |
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390 | |
241 | static void *(*alloc)(void *ptr, long size); |
391 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
242 | |
392 | |
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393 | void |
243 | void ev_set_allocator (void *(*cb)(void *ptr, long size)) |
394 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
244 | { |
395 | { |
245 | alloc = cb; |
396 | alloc = cb; |
246 | } |
397 | } |
247 | |
398 | |
248 | static void * |
399 | inline_speed void * |
249 | ev_realloc (void *ptr, long size) |
400 | ev_realloc (void *ptr, long size) |
250 | { |
401 | { |
251 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
402 | ptr = alloc (ptr, size); |
252 | |
403 | |
253 | if (!ptr && size) |
404 | if (!ptr && size) |
254 | { |
405 | { |
255 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
406 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
256 | abort (); |
407 | abort (); |
… | |
… | |
277 | typedef struct |
428 | typedef struct |
278 | { |
429 | { |
279 | W w; |
430 | W w; |
280 | int events; |
431 | int events; |
281 | } ANPENDING; |
432 | } ANPENDING; |
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433 | |
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434 | #if EV_USE_INOTIFY |
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435 | /* hash table entry per inotify-id */ |
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436 | typedef struct |
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437 | { |
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438 | WL head; |
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439 | } ANFS; |
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440 | #endif |
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441 | |
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442 | /* Heap Entry */ |
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443 | #if EV_HEAP_CACHE_AT |
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444 | typedef struct { |
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445 | ev_tstamp at; |
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446 | WT w; |
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447 | } ANHE; |
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448 | |
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449 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
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450 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
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451 | #define ANHE_at_set(he) (he).at = (he).w->at /* update at from watcher */ |
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452 | #else |
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453 | typedef WT ANHE; |
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454 | |
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455 | #define ANHE_w(he) (he) |
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456 | #define ANHE_at(he) (he)->at |
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457 | #define ANHE_at_set(he) |
|
|
458 | #endif |
282 | |
459 | |
283 | #if EV_MULTIPLICITY |
460 | #if EV_MULTIPLICITY |
284 | |
461 | |
285 | struct ev_loop |
462 | struct ev_loop |
286 | { |
463 | { |
… | |
… | |
320 | gettimeofday (&tv, 0); |
497 | gettimeofday (&tv, 0); |
321 | return tv.tv_sec + tv.tv_usec * 1e-6; |
498 | return tv.tv_sec + tv.tv_usec * 1e-6; |
322 | #endif |
499 | #endif |
323 | } |
500 | } |
324 | |
501 | |
325 | inline ev_tstamp |
502 | ev_tstamp inline_size |
326 | get_clock (void) |
503 | get_clock (void) |
327 | { |
504 | { |
328 | #if EV_USE_MONOTONIC |
505 | #if EV_USE_MONOTONIC |
329 | if (expect_true (have_monotonic)) |
506 | if (expect_true (have_monotonic)) |
330 | { |
507 | { |
… | |
… | |
343 | { |
520 | { |
344 | return ev_rt_now; |
521 | return ev_rt_now; |
345 | } |
522 | } |
346 | #endif |
523 | #endif |
347 | |
524 | |
348 | #define array_roundsize(type,n) (((n) | 4) & ~3) |
525 | void |
|
|
526 | ev_sleep (ev_tstamp delay) |
|
|
527 | { |
|
|
528 | if (delay > 0.) |
|
|
529 | { |
|
|
530 | #if EV_USE_NANOSLEEP |
|
|
531 | struct timespec ts; |
|
|
532 | |
|
|
533 | ts.tv_sec = (time_t)delay; |
|
|
534 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
535 | |
|
|
536 | nanosleep (&ts, 0); |
|
|
537 | #elif defined(_WIN32) |
|
|
538 | Sleep ((unsigned long)(delay * 1e3)); |
|
|
539 | #else |
|
|
540 | struct timeval tv; |
|
|
541 | |
|
|
542 | tv.tv_sec = (time_t)delay; |
|
|
543 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
|
|
544 | |
|
|
545 | select (0, 0, 0, 0, &tv); |
|
|
546 | #endif |
|
|
547 | } |
|
|
548 | } |
|
|
549 | |
|
|
550 | /*****************************************************************************/ |
|
|
551 | |
|
|
552 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
|
|
553 | |
|
|
554 | int inline_size |
|
|
555 | array_nextsize (int elem, int cur, int cnt) |
|
|
556 | { |
|
|
557 | int ncur = cur + 1; |
|
|
558 | |
|
|
559 | do |
|
|
560 | ncur <<= 1; |
|
|
561 | while (cnt > ncur); |
|
|
562 | |
|
|
563 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
|
|
564 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
|
|
565 | { |
|
|
566 | ncur *= elem; |
|
|
567 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
|
|
568 | ncur = ncur - sizeof (void *) * 4; |
|
|
569 | ncur /= elem; |
|
|
570 | } |
|
|
571 | |
|
|
572 | return ncur; |
|
|
573 | } |
|
|
574 | |
|
|
575 | static noinline void * |
|
|
576 | array_realloc (int elem, void *base, int *cur, int cnt) |
|
|
577 | { |
|
|
578 | *cur = array_nextsize (elem, *cur, cnt); |
|
|
579 | return ev_realloc (base, elem * *cur); |
|
|
580 | } |
349 | |
581 | |
350 | #define array_needsize(type,base,cur,cnt,init) \ |
582 | #define array_needsize(type,base,cur,cnt,init) \ |
351 | if (expect_false ((cnt) > cur)) \ |
583 | if (expect_false ((cnt) > (cur))) \ |
352 | { \ |
584 | { \ |
353 | int newcnt = cur; \ |
585 | int ocur_ = (cur); \ |
354 | do \ |
586 | (base) = (type *)array_realloc \ |
355 | { \ |
587 | (sizeof (type), (base), &(cur), (cnt)); \ |
356 | newcnt = array_roundsize (type, newcnt << 1); \ |
588 | 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 | } |
589 | } |
364 | |
590 | |
|
|
591 | #if 0 |
365 | #define array_slim(type,stem) \ |
592 | #define array_slim(type,stem) \ |
366 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
593 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
367 | { \ |
594 | { \ |
368 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
595 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
369 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
596 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
370 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
597 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
371 | } |
598 | } |
|
|
599 | #endif |
372 | |
600 | |
373 | #define array_free(stem, idx) \ |
601 | #define array_free(stem, idx) \ |
374 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
602 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
375 | |
603 | |
376 | /*****************************************************************************/ |
604 | /*****************************************************************************/ |
377 | |
605 | |
378 | static void |
606 | void noinline |
|
|
607 | ev_feed_event (EV_P_ void *w, int revents) |
|
|
608 | { |
|
|
609 | W w_ = (W)w; |
|
|
610 | int pri = ABSPRI (w_); |
|
|
611 | |
|
|
612 | if (expect_false (w_->pending)) |
|
|
613 | pendings [pri][w_->pending - 1].events |= revents; |
|
|
614 | else |
|
|
615 | { |
|
|
616 | w_->pending = ++pendingcnt [pri]; |
|
|
617 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
|
|
618 | pendings [pri][w_->pending - 1].w = w_; |
|
|
619 | pendings [pri][w_->pending - 1].events = revents; |
|
|
620 | } |
|
|
621 | } |
|
|
622 | |
|
|
623 | void inline_speed |
|
|
624 | queue_events (EV_P_ W *events, int eventcnt, int type) |
|
|
625 | { |
|
|
626 | int i; |
|
|
627 | |
|
|
628 | for (i = 0; i < eventcnt; ++i) |
|
|
629 | ev_feed_event (EV_A_ events [i], type); |
|
|
630 | } |
|
|
631 | |
|
|
632 | /*****************************************************************************/ |
|
|
633 | |
|
|
634 | void inline_size |
379 | anfds_init (ANFD *base, int count) |
635 | anfds_init (ANFD *base, int count) |
380 | { |
636 | { |
381 | while (count--) |
637 | while (count--) |
382 | { |
638 | { |
383 | base->head = 0; |
639 | base->head = 0; |
… | |
… | |
386 | |
642 | |
387 | ++base; |
643 | ++base; |
388 | } |
644 | } |
389 | } |
645 | } |
390 | |
646 | |
391 | void |
647 | 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 | w_->pending = ++pendingcnt [ABSPRI (w_)]; |
|
|
403 | array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2); |
|
|
404 | pendings [ABSPRI (w_)][w_->pending - 1].w = w_; |
|
|
405 | pendings [ABSPRI (w_)][w_->pending - 1].events = revents; |
|
|
406 | } |
|
|
407 | |
|
|
408 | static void |
|
|
409 | queue_events (EV_P_ W *events, int eventcnt, int type) |
|
|
410 | { |
|
|
411 | int i; |
|
|
412 | |
|
|
413 | for (i = 0; i < eventcnt; ++i) |
|
|
414 | ev_feed_event (EV_A_ events [i], type); |
|
|
415 | } |
|
|
416 | |
|
|
417 | inline void |
|
|
418 | fd_event (EV_P_ int fd, int revents) |
648 | fd_event (EV_P_ int fd, int revents) |
419 | { |
649 | { |
420 | ANFD *anfd = anfds + fd; |
650 | ANFD *anfd = anfds + fd; |
421 | ev_io *w; |
651 | ev_io *w; |
422 | |
652 | |
… | |
… | |
430 | } |
660 | } |
431 | |
661 | |
432 | void |
662 | void |
433 | ev_feed_fd_event (EV_P_ int fd, int revents) |
663 | ev_feed_fd_event (EV_P_ int fd, int revents) |
434 | { |
664 | { |
|
|
665 | if (fd >= 0 && fd < anfdmax) |
435 | fd_event (EV_A_ fd, revents); |
666 | fd_event (EV_A_ fd, revents); |
436 | } |
667 | } |
437 | |
668 | |
438 | /*****************************************************************************/ |
669 | void inline_size |
439 | |
|
|
440 | inline void |
|
|
441 | fd_reify (EV_P) |
670 | fd_reify (EV_P) |
442 | { |
671 | { |
443 | int i; |
672 | int i; |
444 | |
673 | |
445 | for (i = 0; i < fdchangecnt; ++i) |
674 | for (i = 0; i < fdchangecnt; ++i) |
446 | { |
675 | { |
447 | int fd = fdchanges [i]; |
676 | int fd = fdchanges [i]; |
448 | ANFD *anfd = anfds + fd; |
677 | ANFD *anfd = anfds + fd; |
449 | ev_io *w; |
678 | ev_io *w; |
450 | |
679 | |
451 | int events = 0; |
680 | unsigned char events = 0; |
452 | |
681 | |
453 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
682 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
454 | events |= w->events; |
683 | events |= (unsigned char)w->events; |
455 | |
684 | |
456 | #if EV_SELECT_IS_WINSOCKET |
685 | #if EV_SELECT_IS_WINSOCKET |
457 | if (events) |
686 | if (events) |
458 | { |
687 | { |
459 | unsigned long argp; |
688 | unsigned long argp; |
|
|
689 | #ifdef EV_FD_TO_WIN32_HANDLE |
|
|
690 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
691 | #else |
460 | anfd->handle = _get_osfhandle (fd); |
692 | anfd->handle = _get_osfhandle (fd); |
|
|
693 | #endif |
461 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
694 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
462 | } |
695 | } |
463 | #endif |
696 | #endif |
464 | |
697 | |
|
|
698 | { |
|
|
699 | unsigned char o_events = anfd->events; |
|
|
700 | unsigned char o_reify = anfd->reify; |
|
|
701 | |
465 | anfd->reify = 0; |
702 | anfd->reify = 0; |
466 | |
|
|
467 | backend_modify (EV_A_ fd, anfd->events, events); |
|
|
468 | anfd->events = events; |
703 | anfd->events = events; |
|
|
704 | |
|
|
705 | if (o_events != events || o_reify & EV_IOFDSET) |
|
|
706 | backend_modify (EV_A_ fd, o_events, events); |
|
|
707 | } |
469 | } |
708 | } |
470 | |
709 | |
471 | fdchangecnt = 0; |
710 | fdchangecnt = 0; |
472 | } |
711 | } |
473 | |
712 | |
474 | static void |
713 | void inline_size |
475 | fd_change (EV_P_ int fd) |
714 | fd_change (EV_P_ int fd, int flags) |
476 | { |
715 | { |
477 | if (expect_false (anfds [fd].reify)) |
716 | unsigned char reify = anfds [fd].reify; |
478 | return; |
|
|
479 | |
|
|
480 | anfds [fd].reify = 1; |
717 | anfds [fd].reify |= flags; |
481 | |
718 | |
|
|
719 | if (expect_true (!reify)) |
|
|
720 | { |
482 | ++fdchangecnt; |
721 | ++fdchangecnt; |
483 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
722 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
484 | fdchanges [fdchangecnt - 1] = fd; |
723 | fdchanges [fdchangecnt - 1] = fd; |
|
|
724 | } |
485 | } |
725 | } |
486 | |
726 | |
487 | static void |
727 | void inline_speed |
488 | fd_kill (EV_P_ int fd) |
728 | fd_kill (EV_P_ int fd) |
489 | { |
729 | { |
490 | ev_io *w; |
730 | ev_io *w; |
491 | |
731 | |
492 | while ((w = (ev_io *)anfds [fd].head)) |
732 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
494 | ev_io_stop (EV_A_ w); |
734 | ev_io_stop (EV_A_ w); |
495 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
735 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
496 | } |
736 | } |
497 | } |
737 | } |
498 | |
738 | |
499 | inline int |
739 | int inline_size |
500 | fd_valid (int fd) |
740 | fd_valid (int fd) |
501 | { |
741 | { |
502 | #ifdef _WIN32 |
742 | #ifdef _WIN32 |
503 | return _get_osfhandle (fd) != -1; |
743 | return _get_osfhandle (fd) != -1; |
504 | #else |
744 | #else |
505 | return fcntl (fd, F_GETFD) != -1; |
745 | return fcntl (fd, F_GETFD) != -1; |
506 | #endif |
746 | #endif |
507 | } |
747 | } |
508 | |
748 | |
509 | /* called on EBADF to verify fds */ |
749 | /* called on EBADF to verify fds */ |
510 | static void |
750 | static void noinline |
511 | fd_ebadf (EV_P) |
751 | fd_ebadf (EV_P) |
512 | { |
752 | { |
513 | int fd; |
753 | int fd; |
514 | |
754 | |
515 | for (fd = 0; fd < anfdmax; ++fd) |
755 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
517 | if (!fd_valid (fd) == -1 && errno == EBADF) |
757 | if (!fd_valid (fd) == -1 && errno == EBADF) |
518 | fd_kill (EV_A_ fd); |
758 | fd_kill (EV_A_ fd); |
519 | } |
759 | } |
520 | |
760 | |
521 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
761 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
522 | static void |
762 | static void noinline |
523 | fd_enomem (EV_P) |
763 | fd_enomem (EV_P) |
524 | { |
764 | { |
525 | int fd; |
765 | int fd; |
526 | |
766 | |
527 | for (fd = anfdmax; fd--; ) |
767 | for (fd = anfdmax; fd--; ) |
… | |
… | |
531 | return; |
771 | return; |
532 | } |
772 | } |
533 | } |
773 | } |
534 | |
774 | |
535 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
775 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
536 | static void |
776 | static void noinline |
537 | fd_rearm_all (EV_P) |
777 | fd_rearm_all (EV_P) |
538 | { |
778 | { |
539 | int fd; |
779 | int fd; |
540 | |
780 | |
541 | /* this should be highly optimised to not do anything but set a flag */ |
|
|
542 | for (fd = 0; fd < anfdmax; ++fd) |
781 | for (fd = 0; fd < anfdmax; ++fd) |
543 | if (anfds [fd].events) |
782 | if (anfds [fd].events) |
544 | { |
783 | { |
545 | anfds [fd].events = 0; |
784 | anfds [fd].events = 0; |
546 | fd_change (EV_A_ fd); |
785 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
547 | } |
786 | } |
548 | } |
787 | } |
549 | |
788 | |
550 | /*****************************************************************************/ |
789 | /*****************************************************************************/ |
551 | |
790 | |
552 | static void |
791 | /* |
|
|
792 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
|
|
793 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
|
|
794 | * the branching factor of the d-tree. |
|
|
795 | */ |
|
|
796 | |
|
|
797 | /* |
|
|
798 | * at the moment we allow libev the luxury of two heaps, |
|
|
799 | * a small-code-size 2-heap one and a ~1.5kb larger 4-heap |
|
|
800 | * which is more cache-efficient. |
|
|
801 | * the difference is about 5% with 50000+ watchers. |
|
|
802 | */ |
|
|
803 | #if EV_USE_4HEAP |
|
|
804 | |
|
|
805 | #define DHEAP 4 |
|
|
806 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
|
|
807 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
|
|
808 | |
|
|
809 | /* towards the root */ |
|
|
810 | void inline_speed |
553 | upheap (WT *heap, int k) |
811 | upheap (ANHE *heap, int k) |
554 | { |
812 | { |
555 | WT w = heap [k]; |
813 | ANHE he = heap [k]; |
556 | |
814 | |
557 | while (k && heap [k >> 1]->at > w->at) |
815 | for (;;) |
558 | { |
|
|
559 | heap [k] = heap [k >> 1]; |
|
|
560 | ((W)heap [k])->active = k + 1; |
|
|
561 | k >>= 1; |
|
|
562 | } |
816 | { |
|
|
817 | int p = HPARENT (k); |
563 | |
818 | |
564 | heap [k] = w; |
819 | if (p == k || ANHE_at (heap [p]) <= ANHE_at (he)) |
565 | ((W)heap [k])->active = k + 1; |
|
|
566 | |
|
|
567 | } |
|
|
568 | |
|
|
569 | static void |
|
|
570 | downheap (WT *heap, int N, int k) |
|
|
571 | { |
|
|
572 | WT w = heap [k]; |
|
|
573 | |
|
|
574 | while (k < (N >> 1)) |
|
|
575 | { |
|
|
576 | int j = k << 1; |
|
|
577 | |
|
|
578 | if (j + 1 < N && heap [j]->at > heap [j + 1]->at) |
|
|
579 | ++j; |
|
|
580 | |
|
|
581 | if (w->at <= heap [j]->at) |
|
|
582 | break; |
820 | break; |
583 | |
821 | |
584 | heap [k] = heap [j]; |
822 | heap [k] = heap [p]; |
585 | ((W)heap [k])->active = k + 1; |
823 | ev_active (ANHE_w (heap [k])) = k; |
586 | k = j; |
824 | k = p; |
587 | } |
825 | } |
588 | |
826 | |
589 | heap [k] = w; |
827 | heap [k] = he; |
590 | ((W)heap [k])->active = k + 1; |
828 | ev_active (ANHE_w (he)) = k; |
591 | } |
829 | } |
592 | |
830 | |
593 | inline void |
831 | /* away from the root */ |
|
|
832 | void inline_speed |
|
|
833 | downheap (ANHE *heap, int N, int k) |
|
|
834 | { |
|
|
835 | ANHE he = heap [k]; |
|
|
836 | ANHE *E = heap + N + HEAP0; |
|
|
837 | |
|
|
838 | for (;;) |
|
|
839 | { |
|
|
840 | ev_tstamp minat; |
|
|
841 | ANHE *minpos; |
|
|
842 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0; |
|
|
843 | |
|
|
844 | // find minimum child |
|
|
845 | if (expect_true (pos + DHEAP - 1 < E)) |
|
|
846 | { |
|
|
847 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
848 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
849 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
850 | if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
851 | } |
|
|
852 | else if (pos < E) |
|
|
853 | { |
|
|
854 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
855 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
856 | if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
857 | if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
858 | } |
|
|
859 | else |
|
|
860 | break; |
|
|
861 | |
|
|
862 | if (ANHE_at (he) <= minat) |
|
|
863 | break; |
|
|
864 | |
|
|
865 | heap [k] = *minpos; |
|
|
866 | ev_active (ANHE_w (*minpos)) = k; |
|
|
867 | |
|
|
868 | k = minpos - heap; |
|
|
869 | } |
|
|
870 | |
|
|
871 | heap [k] = he; |
|
|
872 | ev_active (ANHE_w (he)) = k; |
|
|
873 | } |
|
|
874 | |
|
|
875 | #else // 4HEAP |
|
|
876 | |
|
|
877 | #define HEAP0 1 |
|
|
878 | #define HPARENT(k) ((k) >> 1) |
|
|
879 | |
|
|
880 | /* towards the root */ |
|
|
881 | void inline_speed |
|
|
882 | upheap (ANHE *heap, int k) |
|
|
883 | { |
|
|
884 | ANHE he = heap [k]; |
|
|
885 | |
|
|
886 | for (;;) |
|
|
887 | { |
|
|
888 | int p = HPARENT (k); |
|
|
889 | |
|
|
890 | /* maybe we could use a dummy element at heap [0]? */ |
|
|
891 | if (!p || ANHE_at (heap [p]) <= ANHE_at (he)) |
|
|
892 | break; |
|
|
893 | |
|
|
894 | heap [k] = heap [p]; |
|
|
895 | ev_active (ANHE_w (heap [k])) = k; |
|
|
896 | k = p; |
|
|
897 | } |
|
|
898 | |
|
|
899 | heap [k] = he; |
|
|
900 | ev_active (ANHE_w (heap [k])) = k; |
|
|
901 | } |
|
|
902 | |
|
|
903 | /* away from the root */ |
|
|
904 | void inline_speed |
|
|
905 | downheap (ANHE *heap, int N, int k) |
|
|
906 | { |
|
|
907 | ANHE he = heap [k]; |
|
|
908 | |
|
|
909 | for (;;) |
|
|
910 | { |
|
|
911 | int c = k << 1; |
|
|
912 | |
|
|
913 | if (c > N) |
|
|
914 | break; |
|
|
915 | |
|
|
916 | c += c + 1 < N && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
|
|
917 | ? 1 : 0; |
|
|
918 | |
|
|
919 | if (ANHE_at (he) <= ANHE_at (heap [c])) |
|
|
920 | break; |
|
|
921 | |
|
|
922 | heap [k] = heap [c]; |
|
|
923 | ev_active (ANHE_w (heap [k])) = k; |
|
|
924 | |
|
|
925 | k = c; |
|
|
926 | } |
|
|
927 | |
|
|
928 | heap [k] = he; |
|
|
929 | ev_active (ANHE_w (he)) = k; |
|
|
930 | } |
|
|
931 | #endif |
|
|
932 | |
|
|
933 | void inline_size |
594 | adjustheap (WT *heap, int N, int k) |
934 | adjustheap (ANHE *heap, int N, int k) |
595 | { |
935 | { |
|
|
936 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
596 | upheap (heap, k); |
937 | upheap (heap, k); |
|
|
938 | else |
597 | downheap (heap, N, k); |
939 | downheap (heap, N, k); |
598 | } |
940 | } |
599 | |
941 | |
600 | /*****************************************************************************/ |
942 | /*****************************************************************************/ |
601 | |
943 | |
602 | typedef struct |
944 | typedef struct |
603 | { |
945 | { |
604 | WL head; |
946 | WL head; |
605 | sig_atomic_t volatile gotsig; |
947 | EV_ATOMIC_T gotsig; |
606 | } ANSIG; |
948 | } ANSIG; |
607 | |
949 | |
608 | static ANSIG *signals; |
950 | static ANSIG *signals; |
609 | static int signalmax; |
951 | static int signalmax; |
610 | |
952 | |
611 | static int sigpipe [2]; |
953 | static EV_ATOMIC_T gotsig; |
612 | static sig_atomic_t volatile gotsig; |
|
|
613 | static ev_io sigev; |
|
|
614 | |
954 | |
615 | static void |
955 | void inline_size |
616 | signals_init (ANSIG *base, int count) |
956 | signals_init (ANSIG *base, int count) |
617 | { |
957 | { |
618 | while (count--) |
958 | while (count--) |
619 | { |
959 | { |
620 | base->head = 0; |
960 | base->head = 0; |
… | |
… | |
622 | |
962 | |
623 | ++base; |
963 | ++base; |
624 | } |
964 | } |
625 | } |
965 | } |
626 | |
966 | |
627 | static void |
967 | /*****************************************************************************/ |
628 | sighandler (int signum) |
|
|
629 | { |
|
|
630 | #if _WIN32 |
|
|
631 | signal (signum, sighandler); |
|
|
632 | #endif |
|
|
633 | |
968 | |
634 | signals [signum - 1].gotsig = 1; |
969 | void inline_speed |
635 | |
|
|
636 | if (!gotsig) |
|
|
637 | { |
|
|
638 | int old_errno = errno; |
|
|
639 | gotsig = 1; |
|
|
640 | write (sigpipe [1], &signum, 1); |
|
|
641 | errno = old_errno; |
|
|
642 | } |
|
|
643 | } |
|
|
644 | |
|
|
645 | void |
|
|
646 | ev_feed_signal_event (EV_P_ int signum) |
|
|
647 | { |
|
|
648 | WL w; |
|
|
649 | |
|
|
650 | #if EV_MULTIPLICITY |
|
|
651 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
652 | #endif |
|
|
653 | |
|
|
654 | --signum; |
|
|
655 | |
|
|
656 | if (signum < 0 || signum >= signalmax) |
|
|
657 | return; |
|
|
658 | |
|
|
659 | signals [signum].gotsig = 0; |
|
|
660 | |
|
|
661 | for (w = signals [signum].head; w; w = w->next) |
|
|
662 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
663 | } |
|
|
664 | |
|
|
665 | static void |
|
|
666 | sigcb (EV_P_ ev_io *iow, int revents) |
|
|
667 | { |
|
|
668 | int signum; |
|
|
669 | |
|
|
670 | read (sigpipe [0], &revents, 1); |
|
|
671 | gotsig = 0; |
|
|
672 | |
|
|
673 | for (signum = signalmax; signum--; ) |
|
|
674 | if (signals [signum].gotsig) |
|
|
675 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
676 | } |
|
|
677 | |
|
|
678 | static void |
|
|
679 | fd_intern (int fd) |
970 | fd_intern (int fd) |
680 | { |
971 | { |
681 | #ifdef _WIN32 |
972 | #ifdef _WIN32 |
682 | int arg = 1; |
973 | int arg = 1; |
683 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
974 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
… | |
… | |
685 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
976 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
686 | fcntl (fd, F_SETFL, O_NONBLOCK); |
977 | fcntl (fd, F_SETFL, O_NONBLOCK); |
687 | #endif |
978 | #endif |
688 | } |
979 | } |
689 | |
980 | |
|
|
981 | static void noinline |
|
|
982 | evpipe_init (EV_P) |
|
|
983 | { |
|
|
984 | if (!ev_is_active (&pipeev)) |
|
|
985 | { |
|
|
986 | #if EV_USE_EVENTFD |
|
|
987 | if ((evfd = eventfd (0, 0)) >= 0) |
|
|
988 | { |
|
|
989 | evpipe [0] = -1; |
|
|
990 | fd_intern (evfd); |
|
|
991 | ev_io_set (&pipeev, evfd, EV_READ); |
|
|
992 | } |
|
|
993 | else |
|
|
994 | #endif |
|
|
995 | { |
|
|
996 | while (pipe (evpipe)) |
|
|
997 | syserr ("(libev) error creating signal/async pipe"); |
|
|
998 | |
|
|
999 | fd_intern (evpipe [0]); |
|
|
1000 | fd_intern (evpipe [1]); |
|
|
1001 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
|
|
1002 | } |
|
|
1003 | |
|
|
1004 | ev_io_start (EV_A_ &pipeev); |
|
|
1005 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
1006 | } |
|
|
1007 | } |
|
|
1008 | |
|
|
1009 | void inline_size |
|
|
1010 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1011 | { |
|
|
1012 | if (!*flag) |
|
|
1013 | { |
|
|
1014 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1015 | |
|
|
1016 | *flag = 1; |
|
|
1017 | |
|
|
1018 | #if EV_USE_EVENTFD |
|
|
1019 | if (evfd >= 0) |
|
|
1020 | { |
|
|
1021 | uint64_t counter = 1; |
|
|
1022 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
1023 | } |
|
|
1024 | else |
|
|
1025 | #endif |
|
|
1026 | write (evpipe [1], &old_errno, 1); |
|
|
1027 | |
|
|
1028 | errno = old_errno; |
|
|
1029 | } |
|
|
1030 | } |
|
|
1031 | |
690 | static void |
1032 | static void |
691 | siginit (EV_P) |
1033 | pipecb (EV_P_ ev_io *iow, int revents) |
692 | { |
1034 | { |
693 | fd_intern (sigpipe [0]); |
1035 | #if EV_USE_EVENTFD |
694 | fd_intern (sigpipe [1]); |
1036 | if (evfd >= 0) |
|
|
1037 | { |
|
|
1038 | uint64_t counter; |
|
|
1039 | read (evfd, &counter, sizeof (uint64_t)); |
|
|
1040 | } |
|
|
1041 | else |
|
|
1042 | #endif |
|
|
1043 | { |
|
|
1044 | char dummy; |
|
|
1045 | read (evpipe [0], &dummy, 1); |
|
|
1046 | } |
695 | |
1047 | |
696 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
1048 | if (gotsig && ev_is_default_loop (EV_A)) |
697 | ev_io_start (EV_A_ &sigev); |
1049 | { |
698 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1050 | int signum; |
|
|
1051 | gotsig = 0; |
|
|
1052 | |
|
|
1053 | for (signum = signalmax; signum--; ) |
|
|
1054 | if (signals [signum].gotsig) |
|
|
1055 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
1056 | } |
|
|
1057 | |
|
|
1058 | #if EV_ASYNC_ENABLE |
|
|
1059 | if (gotasync) |
|
|
1060 | { |
|
|
1061 | int i; |
|
|
1062 | gotasync = 0; |
|
|
1063 | |
|
|
1064 | for (i = asynccnt; i--; ) |
|
|
1065 | if (asyncs [i]->sent) |
|
|
1066 | { |
|
|
1067 | asyncs [i]->sent = 0; |
|
|
1068 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
|
|
1069 | } |
|
|
1070 | } |
|
|
1071 | #endif |
699 | } |
1072 | } |
700 | |
1073 | |
701 | /*****************************************************************************/ |
1074 | /*****************************************************************************/ |
702 | |
1075 | |
|
|
1076 | static void |
|
|
1077 | ev_sighandler (int signum) |
|
|
1078 | { |
|
|
1079 | #if EV_MULTIPLICITY |
|
|
1080 | struct ev_loop *loop = &default_loop_struct; |
|
|
1081 | #endif |
|
|
1082 | |
|
|
1083 | #if _WIN32 |
|
|
1084 | signal (signum, ev_sighandler); |
|
|
1085 | #endif |
|
|
1086 | |
|
|
1087 | signals [signum - 1].gotsig = 1; |
|
|
1088 | evpipe_write (EV_A_ &gotsig); |
|
|
1089 | } |
|
|
1090 | |
|
|
1091 | void noinline |
|
|
1092 | ev_feed_signal_event (EV_P_ int signum) |
|
|
1093 | { |
|
|
1094 | WL w; |
|
|
1095 | |
|
|
1096 | #if EV_MULTIPLICITY |
|
|
1097 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1098 | #endif |
|
|
1099 | |
|
|
1100 | --signum; |
|
|
1101 | |
|
|
1102 | if (signum < 0 || signum >= signalmax) |
|
|
1103 | return; |
|
|
1104 | |
|
|
1105 | signals [signum].gotsig = 0; |
|
|
1106 | |
|
|
1107 | for (w = signals [signum].head; w; w = w->next) |
|
|
1108 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
1109 | } |
|
|
1110 | |
|
|
1111 | /*****************************************************************************/ |
|
|
1112 | |
703 | static ev_child *childs [PID_HASHSIZE]; |
1113 | static WL childs [EV_PID_HASHSIZE]; |
704 | |
1114 | |
705 | #ifndef _WIN32 |
1115 | #ifndef _WIN32 |
706 | |
1116 | |
707 | static ev_signal childev; |
1117 | static ev_signal childev; |
|
|
1118 | |
|
|
1119 | #ifndef WIFCONTINUED |
|
|
1120 | # define WIFCONTINUED(status) 0 |
|
|
1121 | #endif |
|
|
1122 | |
|
|
1123 | void inline_speed |
|
|
1124 | child_reap (EV_P_ int chain, int pid, int status) |
|
|
1125 | { |
|
|
1126 | ev_child *w; |
|
|
1127 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
|
|
1128 | |
|
|
1129 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1130 | { |
|
|
1131 | if ((w->pid == pid || !w->pid) |
|
|
1132 | && (!traced || (w->flags & 1))) |
|
|
1133 | { |
|
|
1134 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
|
|
1135 | w->rpid = pid; |
|
|
1136 | w->rstatus = status; |
|
|
1137 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
|
|
1138 | } |
|
|
1139 | } |
|
|
1140 | } |
708 | |
1141 | |
709 | #ifndef WCONTINUED |
1142 | #ifndef WCONTINUED |
710 | # define WCONTINUED 0 |
1143 | # define WCONTINUED 0 |
711 | #endif |
1144 | #endif |
712 | |
1145 | |
713 | static void |
1146 | static void |
714 | child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) |
|
|
715 | { |
|
|
716 | ev_child *w; |
|
|
717 | |
|
|
718 | for (w = (ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
719 | if (w->pid == pid || !w->pid) |
|
|
720 | { |
|
|
721 | ev_priority (w) = ev_priority (sw); /* need to do it *now* */ |
|
|
722 | w->rpid = pid; |
|
|
723 | w->rstatus = status; |
|
|
724 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
|
|
725 | } |
|
|
726 | } |
|
|
727 | |
|
|
728 | static void |
|
|
729 | childcb (EV_P_ ev_signal *sw, int revents) |
1147 | childcb (EV_P_ ev_signal *sw, int revents) |
730 | { |
1148 | { |
731 | int pid, status; |
1149 | int pid, status; |
732 | |
1150 | |
|
|
1151 | /* some systems define WCONTINUED but then fail to support it (linux 2.4) */ |
733 | if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
1152 | if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
734 | { |
1153 | if (!WCONTINUED |
|
|
1154 | || errno != EINVAL |
|
|
1155 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
|
|
1156 | return; |
|
|
1157 | |
735 | /* make sure we are called again until all childs have been reaped */ |
1158 | /* make sure we are called again until all children have been reaped */ |
736 | /* we need to do it this way so that the callback gets called before we continue */ |
1159 | /* we need to do it this way so that the callback gets called before we continue */ |
737 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1160 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
738 | |
1161 | |
739 | child_reap (EV_A_ sw, pid, pid, status); |
1162 | child_reap (EV_A_ pid, pid, status); |
|
|
1163 | if (EV_PID_HASHSIZE > 1) |
740 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1164 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
741 | } |
|
|
742 | } |
1165 | } |
743 | |
1166 | |
744 | #endif |
1167 | #endif |
745 | |
1168 | |
746 | /*****************************************************************************/ |
1169 | /*****************************************************************************/ |
… | |
… | |
772 | { |
1195 | { |
773 | return EV_VERSION_MINOR; |
1196 | return EV_VERSION_MINOR; |
774 | } |
1197 | } |
775 | |
1198 | |
776 | /* return true if we are running with elevated privileges and should ignore env variables */ |
1199 | /* return true if we are running with elevated privileges and should ignore env variables */ |
777 | static int |
1200 | int inline_size |
778 | enable_secure (void) |
1201 | enable_secure (void) |
779 | { |
1202 | { |
780 | #ifdef _WIN32 |
1203 | #ifdef _WIN32 |
781 | return 0; |
1204 | return 0; |
782 | #else |
1205 | #else |
… | |
… | |
818 | } |
1241 | } |
819 | |
1242 | |
820 | unsigned int |
1243 | unsigned int |
821 | ev_embeddable_backends (void) |
1244 | ev_embeddable_backends (void) |
822 | { |
1245 | { |
823 | return EVBACKEND_EPOLL |
1246 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
824 | | EVBACKEND_KQUEUE |
1247 | |
825 | | EVBACKEND_PORT; |
1248 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
|
|
1249 | /* please fix it and tell me how to detect the fix */ |
|
|
1250 | flags &= ~EVBACKEND_EPOLL; |
|
|
1251 | |
|
|
1252 | return flags; |
826 | } |
1253 | } |
827 | |
1254 | |
828 | unsigned int |
1255 | unsigned int |
829 | ev_backend (EV_P) |
1256 | ev_backend (EV_P) |
830 | { |
1257 | { |
831 | return backend; |
1258 | return backend; |
832 | } |
1259 | } |
833 | |
1260 | |
834 | static void |
1261 | unsigned int |
|
|
1262 | ev_loop_count (EV_P) |
|
|
1263 | { |
|
|
1264 | return loop_count; |
|
|
1265 | } |
|
|
1266 | |
|
|
1267 | void |
|
|
1268 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1269 | { |
|
|
1270 | io_blocktime = interval; |
|
|
1271 | } |
|
|
1272 | |
|
|
1273 | void |
|
|
1274 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1275 | { |
|
|
1276 | timeout_blocktime = interval; |
|
|
1277 | } |
|
|
1278 | |
|
|
1279 | static void noinline |
835 | loop_init (EV_P_ unsigned int flags) |
1280 | loop_init (EV_P_ unsigned int flags) |
836 | { |
1281 | { |
837 | if (!backend) |
1282 | if (!backend) |
838 | { |
1283 | { |
839 | #if EV_USE_MONOTONIC |
1284 | #if EV_USE_MONOTONIC |
… | |
… | |
842 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1287 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
843 | have_monotonic = 1; |
1288 | have_monotonic = 1; |
844 | } |
1289 | } |
845 | #endif |
1290 | #endif |
846 | |
1291 | |
847 | ev_rt_now = ev_time (); |
1292 | ev_rt_now = ev_time (); |
848 | mn_now = get_clock (); |
1293 | mn_now = get_clock (); |
849 | now_floor = mn_now; |
1294 | now_floor = mn_now; |
850 | rtmn_diff = ev_rt_now - mn_now; |
1295 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1296 | |
|
|
1297 | io_blocktime = 0.; |
|
|
1298 | timeout_blocktime = 0.; |
|
|
1299 | backend = 0; |
|
|
1300 | backend_fd = -1; |
|
|
1301 | gotasync = 0; |
|
|
1302 | #if EV_USE_INOTIFY |
|
|
1303 | fs_fd = -2; |
|
|
1304 | #endif |
|
|
1305 | |
|
|
1306 | /* pid check not overridable via env */ |
|
|
1307 | #ifndef _WIN32 |
|
|
1308 | if (flags & EVFLAG_FORKCHECK) |
|
|
1309 | curpid = getpid (); |
|
|
1310 | #endif |
851 | |
1311 | |
852 | if (!(flags & EVFLAG_NOENV) |
1312 | if (!(flags & EVFLAG_NOENV) |
853 | && !enable_secure () |
1313 | && !enable_secure () |
854 | && getenv ("LIBEV_FLAGS")) |
1314 | && getenv ("LIBEV_FLAGS")) |
855 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1315 | flags = atoi (getenv ("LIBEV_FLAGS")); |
856 | |
1316 | |
857 | if (!(flags & 0x0000ffffUL)) |
1317 | if (!(flags & 0x0000ffffU)) |
858 | flags |= ev_recommended_backends (); |
1318 | flags |= ev_recommended_backends (); |
859 | |
1319 | |
860 | backend = 0; |
|
|
861 | #if EV_USE_PORT |
1320 | #if EV_USE_PORT |
862 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1321 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
863 | #endif |
1322 | #endif |
864 | #if EV_USE_KQUEUE |
1323 | #if EV_USE_KQUEUE |
865 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
1324 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
… | |
… | |
872 | #endif |
1331 | #endif |
873 | #if EV_USE_SELECT |
1332 | #if EV_USE_SELECT |
874 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1333 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
875 | #endif |
1334 | #endif |
876 | |
1335 | |
877 | ev_init (&sigev, sigcb); |
1336 | ev_init (&pipeev, pipecb); |
878 | ev_set_priority (&sigev, EV_MAXPRI); |
1337 | ev_set_priority (&pipeev, EV_MAXPRI); |
879 | } |
1338 | } |
880 | } |
1339 | } |
881 | |
1340 | |
882 | static void |
1341 | static void noinline |
883 | loop_destroy (EV_P) |
1342 | loop_destroy (EV_P) |
884 | { |
1343 | { |
885 | int i; |
1344 | int i; |
|
|
1345 | |
|
|
1346 | if (ev_is_active (&pipeev)) |
|
|
1347 | { |
|
|
1348 | ev_ref (EV_A); /* signal watcher */ |
|
|
1349 | ev_io_stop (EV_A_ &pipeev); |
|
|
1350 | |
|
|
1351 | #if EV_USE_EVENTFD |
|
|
1352 | if (evfd >= 0) |
|
|
1353 | close (evfd); |
|
|
1354 | #endif |
|
|
1355 | |
|
|
1356 | if (evpipe [0] >= 0) |
|
|
1357 | { |
|
|
1358 | close (evpipe [0]); |
|
|
1359 | close (evpipe [1]); |
|
|
1360 | } |
|
|
1361 | } |
|
|
1362 | |
|
|
1363 | #if EV_USE_INOTIFY |
|
|
1364 | if (fs_fd >= 0) |
|
|
1365 | close (fs_fd); |
|
|
1366 | #endif |
|
|
1367 | |
|
|
1368 | if (backend_fd >= 0) |
|
|
1369 | close (backend_fd); |
886 | |
1370 | |
887 | #if EV_USE_PORT |
1371 | #if EV_USE_PORT |
888 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
1372 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
889 | #endif |
1373 | #endif |
890 | #if EV_USE_KQUEUE |
1374 | #if EV_USE_KQUEUE |
… | |
… | |
899 | #if EV_USE_SELECT |
1383 | #if EV_USE_SELECT |
900 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
1384 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
901 | #endif |
1385 | #endif |
902 | |
1386 | |
903 | for (i = NUMPRI; i--; ) |
1387 | for (i = NUMPRI; i--; ) |
|
|
1388 | { |
904 | array_free (pending, [i]); |
1389 | array_free (pending, [i]); |
|
|
1390 | #if EV_IDLE_ENABLE |
|
|
1391 | array_free (idle, [i]); |
|
|
1392 | #endif |
|
|
1393 | } |
|
|
1394 | |
|
|
1395 | ev_free (anfds); anfdmax = 0; |
905 | |
1396 | |
906 | /* have to use the microsoft-never-gets-it-right macro */ |
1397 | /* have to use the microsoft-never-gets-it-right macro */ |
907 | array_free (fdchange, EMPTY0); |
1398 | array_free (fdchange, EMPTY); |
908 | array_free (timer, EMPTY0); |
1399 | array_free (timer, EMPTY); |
909 | #if EV_PERIODICS |
1400 | #if EV_PERIODIC_ENABLE |
910 | array_free (periodic, EMPTY0); |
1401 | array_free (periodic, EMPTY); |
911 | #endif |
1402 | #endif |
|
|
1403 | #if EV_FORK_ENABLE |
912 | array_free (idle, EMPTY0); |
1404 | array_free (fork, EMPTY); |
|
|
1405 | #endif |
913 | array_free (prepare, EMPTY0); |
1406 | array_free (prepare, EMPTY); |
914 | array_free (check, EMPTY0); |
1407 | array_free (check, EMPTY); |
|
|
1408 | #if EV_ASYNC_ENABLE |
|
|
1409 | array_free (async, EMPTY); |
|
|
1410 | #endif |
915 | |
1411 | |
916 | backend = 0; |
1412 | backend = 0; |
917 | } |
1413 | } |
918 | |
1414 | |
919 | static void |
1415 | #if EV_USE_INOTIFY |
|
|
1416 | void inline_size infy_fork (EV_P); |
|
|
1417 | #endif |
|
|
1418 | |
|
|
1419 | void inline_size |
920 | loop_fork (EV_P) |
1420 | loop_fork (EV_P) |
921 | { |
1421 | { |
922 | #if EV_USE_PORT |
1422 | #if EV_USE_PORT |
923 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1423 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
924 | #endif |
1424 | #endif |
… | |
… | |
926 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
1426 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
927 | #endif |
1427 | #endif |
928 | #if EV_USE_EPOLL |
1428 | #if EV_USE_EPOLL |
929 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
1429 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
930 | #endif |
1430 | #endif |
|
|
1431 | #if EV_USE_INOTIFY |
|
|
1432 | infy_fork (EV_A); |
|
|
1433 | #endif |
931 | |
1434 | |
932 | if (ev_is_active (&sigev)) |
1435 | if (ev_is_active (&pipeev)) |
933 | { |
1436 | { |
934 | /* default loop */ |
1437 | /* this "locks" the handlers against writing to the pipe */ |
|
|
1438 | /* while we modify the fd vars */ |
|
|
1439 | gotsig = 1; |
|
|
1440 | #if EV_ASYNC_ENABLE |
|
|
1441 | gotasync = 1; |
|
|
1442 | #endif |
935 | |
1443 | |
936 | ev_ref (EV_A); |
1444 | ev_ref (EV_A); |
937 | ev_io_stop (EV_A_ &sigev); |
1445 | ev_io_stop (EV_A_ &pipeev); |
|
|
1446 | |
|
|
1447 | #if EV_USE_EVENTFD |
|
|
1448 | if (evfd >= 0) |
|
|
1449 | close (evfd); |
|
|
1450 | #endif |
|
|
1451 | |
|
|
1452 | if (evpipe [0] >= 0) |
|
|
1453 | { |
938 | close (sigpipe [0]); |
1454 | close (evpipe [0]); |
939 | close (sigpipe [1]); |
1455 | close (evpipe [1]); |
|
|
1456 | } |
940 | |
1457 | |
941 | while (pipe (sigpipe)) |
|
|
942 | syserr ("(libev) error creating pipe"); |
|
|
943 | |
|
|
944 | siginit (EV_A); |
1458 | evpipe_init (EV_A); |
|
|
1459 | /* now iterate over everything, in case we missed something */ |
|
|
1460 | pipecb (EV_A_ &pipeev, EV_READ); |
945 | } |
1461 | } |
946 | |
1462 | |
947 | postfork = 0; |
1463 | postfork = 0; |
948 | } |
1464 | } |
949 | |
1465 | |
… | |
… | |
971 | } |
1487 | } |
972 | |
1488 | |
973 | void |
1489 | void |
974 | ev_loop_fork (EV_P) |
1490 | ev_loop_fork (EV_P) |
975 | { |
1491 | { |
976 | postfork = 1; |
1492 | postfork = 1; /* must be in line with ev_default_fork */ |
977 | } |
1493 | } |
978 | |
|
|
979 | #endif |
1494 | #endif |
980 | |
1495 | |
981 | #if EV_MULTIPLICITY |
1496 | #if EV_MULTIPLICITY |
982 | struct ev_loop * |
1497 | struct ev_loop * |
983 | ev_default_loop_init (unsigned int flags) |
1498 | ev_default_loop_init (unsigned int flags) |
984 | #else |
1499 | #else |
985 | int |
1500 | int |
986 | ev_default_loop (unsigned int flags) |
1501 | ev_default_loop (unsigned int flags) |
987 | #endif |
1502 | #endif |
988 | { |
1503 | { |
989 | if (sigpipe [0] == sigpipe [1]) |
|
|
990 | if (pipe (sigpipe)) |
|
|
991 | return 0; |
|
|
992 | |
|
|
993 | if (!ev_default_loop_ptr) |
1504 | if (!ev_default_loop_ptr) |
994 | { |
1505 | { |
995 | #if EV_MULTIPLICITY |
1506 | #if EV_MULTIPLICITY |
996 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1507 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
997 | #else |
1508 | #else |
… | |
… | |
1000 | |
1511 | |
1001 | loop_init (EV_A_ flags); |
1512 | loop_init (EV_A_ flags); |
1002 | |
1513 | |
1003 | if (ev_backend (EV_A)) |
1514 | if (ev_backend (EV_A)) |
1004 | { |
1515 | { |
1005 | siginit (EV_A); |
|
|
1006 | |
|
|
1007 | #ifndef _WIN32 |
1516 | #ifndef _WIN32 |
1008 | ev_signal_init (&childev, childcb, SIGCHLD); |
1517 | ev_signal_init (&childev, childcb, SIGCHLD); |
1009 | ev_set_priority (&childev, EV_MAXPRI); |
1518 | ev_set_priority (&childev, EV_MAXPRI); |
1010 | ev_signal_start (EV_A_ &childev); |
1519 | ev_signal_start (EV_A_ &childev); |
1011 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1520 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
… | |
… | |
1028 | #ifndef _WIN32 |
1537 | #ifndef _WIN32 |
1029 | ev_ref (EV_A); /* child watcher */ |
1538 | ev_ref (EV_A); /* child watcher */ |
1030 | ev_signal_stop (EV_A_ &childev); |
1539 | ev_signal_stop (EV_A_ &childev); |
1031 | #endif |
1540 | #endif |
1032 | |
1541 | |
1033 | ev_ref (EV_A); /* signal watcher */ |
|
|
1034 | ev_io_stop (EV_A_ &sigev); |
|
|
1035 | |
|
|
1036 | close (sigpipe [0]); sigpipe [0] = 0; |
|
|
1037 | close (sigpipe [1]); sigpipe [1] = 0; |
|
|
1038 | |
|
|
1039 | loop_destroy (EV_A); |
1542 | loop_destroy (EV_A); |
1040 | } |
1543 | } |
1041 | |
1544 | |
1042 | void |
1545 | void |
1043 | ev_default_fork (void) |
1546 | ev_default_fork (void) |
… | |
… | |
1045 | #if EV_MULTIPLICITY |
1548 | #if EV_MULTIPLICITY |
1046 | struct ev_loop *loop = ev_default_loop_ptr; |
1549 | struct ev_loop *loop = ev_default_loop_ptr; |
1047 | #endif |
1550 | #endif |
1048 | |
1551 | |
1049 | if (backend) |
1552 | if (backend) |
1050 | postfork = 1; |
1553 | postfork = 1; /* must be in line with ev_loop_fork */ |
1051 | } |
1554 | } |
1052 | |
1555 | |
1053 | /*****************************************************************************/ |
1556 | /*****************************************************************************/ |
1054 | |
1557 | |
1055 | static int |
1558 | void |
1056 | any_pending (EV_P) |
1559 | ev_invoke (EV_P_ void *w, int revents) |
1057 | { |
1560 | { |
1058 | int pri; |
1561 | EV_CB_INVOKE ((W)w, revents); |
1059 | |
|
|
1060 | for (pri = NUMPRI; pri--; ) |
|
|
1061 | if (pendingcnt [pri]) |
|
|
1062 | return 1; |
|
|
1063 | |
|
|
1064 | return 0; |
|
|
1065 | } |
1562 | } |
1066 | |
1563 | |
1067 | inline void |
1564 | void inline_speed |
1068 | call_pending (EV_P) |
1565 | call_pending (EV_P) |
1069 | { |
1566 | { |
1070 | int pri; |
1567 | int pri; |
1071 | |
1568 | |
1072 | for (pri = NUMPRI; pri--; ) |
1569 | for (pri = NUMPRI; pri--; ) |
… | |
… | |
1074 | { |
1571 | { |
1075 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1572 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1076 | |
1573 | |
1077 | if (expect_true (p->w)) |
1574 | if (expect_true (p->w)) |
1078 | { |
1575 | { |
|
|
1576 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
|
|
1577 | |
1079 | p->w->pending = 0; |
1578 | p->w->pending = 0; |
1080 | EV_CB_INVOKE (p->w, p->events); |
1579 | EV_CB_INVOKE (p->w, p->events); |
1081 | } |
1580 | } |
1082 | } |
1581 | } |
1083 | } |
1582 | } |
1084 | |
1583 | |
1085 | inline void |
1584 | #if EV_IDLE_ENABLE |
|
|
1585 | void inline_size |
|
|
1586 | idle_reify (EV_P) |
|
|
1587 | { |
|
|
1588 | if (expect_false (idleall)) |
|
|
1589 | { |
|
|
1590 | int pri; |
|
|
1591 | |
|
|
1592 | for (pri = NUMPRI; pri--; ) |
|
|
1593 | { |
|
|
1594 | if (pendingcnt [pri]) |
|
|
1595 | break; |
|
|
1596 | |
|
|
1597 | if (idlecnt [pri]) |
|
|
1598 | { |
|
|
1599 | queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE); |
|
|
1600 | break; |
|
|
1601 | } |
|
|
1602 | } |
|
|
1603 | } |
|
|
1604 | } |
|
|
1605 | #endif |
|
|
1606 | |
|
|
1607 | void inline_size |
1086 | timers_reify (EV_P) |
1608 | timers_reify (EV_P) |
1087 | { |
1609 | { |
1088 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
1610 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
1089 | { |
1611 | { |
1090 | ev_timer *w = timers [0]; |
1612 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
1091 | |
1613 | |
1092 | assert (("inactive timer on timer heap detected", ev_is_active (w))); |
1614 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
1093 | |
1615 | |
1094 | /* first reschedule or stop timer */ |
1616 | /* first reschedule or stop timer */ |
1095 | if (w->repeat) |
1617 | if (w->repeat) |
1096 | { |
1618 | { |
|
|
1619 | ev_at (w) += w->repeat; |
|
|
1620 | if (ev_at (w) < mn_now) |
|
|
1621 | ev_at (w) = mn_now; |
|
|
1622 | |
1097 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1623 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1098 | |
1624 | |
1099 | ((WT)w)->at += w->repeat; |
1625 | ANHE_at_set (timers [HEAP0]); |
1100 | if (((WT)w)->at < mn_now) |
|
|
1101 | ((WT)w)->at = mn_now; |
|
|
1102 | |
|
|
1103 | downheap ((WT *)timers, timercnt, 0); |
1626 | downheap (timers, timercnt, HEAP0); |
1104 | } |
1627 | } |
1105 | else |
1628 | else |
1106 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1629 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1107 | |
1630 | |
1108 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
1631 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
1109 | } |
1632 | } |
1110 | } |
1633 | } |
1111 | |
1634 | |
1112 | #if EV_PERIODICS |
1635 | #if EV_PERIODIC_ENABLE |
1113 | inline void |
1636 | void inline_size |
1114 | periodics_reify (EV_P) |
1637 | periodics_reify (EV_P) |
1115 | { |
1638 | { |
1116 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
1639 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
1117 | { |
1640 | { |
1118 | ev_periodic *w = periodics [0]; |
1641 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
1119 | |
1642 | |
1120 | assert (("inactive timer on periodic heap detected", ev_is_active (w))); |
1643 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
1121 | |
1644 | |
1122 | /* first reschedule or stop timer */ |
1645 | /* first reschedule or stop timer */ |
1123 | if (w->reschedule_cb) |
1646 | if (w->reschedule_cb) |
1124 | { |
1647 | { |
1125 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); |
1648 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
1649 | |
1126 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
1650 | assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
|
|
1651 | |
|
|
1652 | ANHE_at_set (periodics [HEAP0]); |
1127 | downheap ((WT *)periodics, periodiccnt, 0); |
1653 | downheap (periodics, periodiccnt, HEAP0); |
1128 | } |
1654 | } |
1129 | else if (w->interval) |
1655 | else if (w->interval) |
1130 | { |
1656 | { |
1131 | ((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
1657 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1132 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
1658 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
1659 | /* this might happen because of floating point inexactness */ |
|
|
1660 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
1661 | { |
|
|
1662 | ev_at (w) += w->interval; |
|
|
1663 | |
|
|
1664 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
1665 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
1666 | /* has effectively asked to get triggered more often than possible */ |
|
|
1667 | if (ev_at (w) < ev_rt_now) |
|
|
1668 | ev_at (w) = ev_rt_now; |
|
|
1669 | } |
|
|
1670 | |
|
|
1671 | ANHE_at_set (periodics [HEAP0]); |
1133 | downheap ((WT *)periodics, periodiccnt, 0); |
1672 | downheap (periodics, periodiccnt, HEAP0); |
1134 | } |
1673 | } |
1135 | else |
1674 | else |
1136 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1675 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1137 | |
1676 | |
1138 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
1677 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
1139 | } |
1678 | } |
1140 | } |
1679 | } |
1141 | |
1680 | |
1142 | static void |
1681 | static void noinline |
1143 | periodics_reschedule (EV_P) |
1682 | periodics_reschedule (EV_P) |
1144 | { |
1683 | { |
1145 | int i; |
1684 | int i; |
1146 | |
1685 | |
1147 | /* adjust periodics after time jump */ |
1686 | /* adjust periodics after time jump */ |
|
|
1687 | for (i = HEAP0; i < periodiccnt + HEAP0; ++i) |
|
|
1688 | { |
|
|
1689 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
|
|
1690 | |
|
|
1691 | if (w->reschedule_cb) |
|
|
1692 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
1693 | else if (w->interval) |
|
|
1694 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1695 | |
|
|
1696 | ANHE_at_set (periodics [i]); |
|
|
1697 | } |
|
|
1698 | |
|
|
1699 | /* we don't use floyds algorithm, uphead is simpler and is more cache-efficient */ |
|
|
1700 | /* also, this is easy and corretc for both 2-heaps and 4-heaps */ |
1148 | for (i = 0; i < periodiccnt; ++i) |
1701 | for (i = 0; i < periodiccnt; ++i) |
1149 | { |
1702 | upheap (periodics, i + HEAP0); |
1150 | ev_periodic *w = periodics [i]; |
1703 | } |
|
|
1704 | #endif |
1151 | |
1705 | |
1152 | if (w->reschedule_cb) |
1706 | void inline_speed |
1153 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1707 | time_update (EV_P_ ev_tstamp max_block) |
1154 | else if (w->interval) |
1708 | { |
1155 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1709 | int i; |
|
|
1710 | |
|
|
1711 | #if EV_USE_MONOTONIC |
|
|
1712 | if (expect_true (have_monotonic)) |
1156 | } |
1713 | { |
|
|
1714 | ev_tstamp odiff = rtmn_diff; |
1157 | |
1715 | |
1158 | /* now rebuild the heap */ |
|
|
1159 | for (i = periodiccnt >> 1; i--; ) |
|
|
1160 | downheap ((WT *)periodics, periodiccnt, i); |
|
|
1161 | } |
|
|
1162 | #endif |
|
|
1163 | |
|
|
1164 | inline int |
|
|
1165 | time_update_monotonic (EV_P) |
|
|
1166 | { |
|
|
1167 | mn_now = get_clock (); |
1716 | mn_now = get_clock (); |
1168 | |
1717 | |
|
|
1718 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
|
|
1719 | /* interpolate in the meantime */ |
1169 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1720 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1170 | { |
1721 | { |
1171 | ev_rt_now = rtmn_diff + mn_now; |
1722 | ev_rt_now = rtmn_diff + mn_now; |
1172 | return 0; |
1723 | return; |
1173 | } |
1724 | } |
1174 | else |
1725 | |
1175 | { |
|
|
1176 | now_floor = mn_now; |
1726 | now_floor = mn_now; |
1177 | ev_rt_now = ev_time (); |
1727 | ev_rt_now = ev_time (); |
1178 | return 1; |
|
|
1179 | } |
|
|
1180 | } |
|
|
1181 | |
1728 | |
1182 | inline void |
1729 | /* loop a few times, before making important decisions. |
1183 | time_update (EV_P) |
1730 | * on the choice of "4": one iteration isn't enough, |
1184 | { |
1731 | * in case we get preempted during the calls to |
1185 | int i; |
1732 | * ev_time and get_clock. a second call is almost guaranteed |
1186 | |
1733 | * to succeed in that case, though. and looping a few more times |
1187 | #if EV_USE_MONOTONIC |
1734 | * doesn't hurt either as we only do this on time-jumps or |
1188 | if (expect_true (have_monotonic)) |
1735 | * in the unlikely event of having been preempted here. |
1189 | { |
1736 | */ |
1190 | if (time_update_monotonic (EV_A)) |
1737 | for (i = 4; --i; ) |
1191 | { |
1738 | { |
1192 | ev_tstamp odiff = rtmn_diff; |
1739 | rtmn_diff = ev_rt_now - mn_now; |
1193 | |
1740 | |
1194 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
1741 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
|
|
1742 | return; /* all is well */ |
|
|
1743 | |
|
|
1744 | ev_rt_now = ev_time (); |
|
|
1745 | mn_now = get_clock (); |
|
|
1746 | now_floor = mn_now; |
|
|
1747 | } |
|
|
1748 | |
|
|
1749 | # if EV_PERIODIC_ENABLE |
|
|
1750 | periodics_reschedule (EV_A); |
|
|
1751 | # endif |
|
|
1752 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1753 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1754 | } |
|
|
1755 | else |
|
|
1756 | #endif |
|
|
1757 | { |
|
|
1758 | ev_rt_now = ev_time (); |
|
|
1759 | |
|
|
1760 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
|
|
1761 | { |
|
|
1762 | #if EV_PERIODIC_ENABLE |
|
|
1763 | periodics_reschedule (EV_A); |
|
|
1764 | #endif |
|
|
1765 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1766 | for (i = 0; i < timercnt; ++i) |
1195 | { |
1767 | { |
1196 | rtmn_diff = ev_rt_now - mn_now; |
1768 | ANHE *he = timers + i + HEAP0; |
1197 | |
1769 | ANHE_w (*he)->at += ev_rt_now - mn_now; |
1198 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1770 | ANHE_at_set (*he); |
1199 | return; /* all is well */ |
|
|
1200 | |
|
|
1201 | ev_rt_now = ev_time (); |
|
|
1202 | mn_now = get_clock (); |
|
|
1203 | now_floor = mn_now; |
|
|
1204 | } |
1771 | } |
1205 | |
|
|
1206 | # if EV_PERIODICS |
|
|
1207 | periodics_reschedule (EV_A); |
|
|
1208 | # endif |
|
|
1209 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1210 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1211 | } |
1772 | } |
1212 | } |
|
|
1213 | else |
|
|
1214 | #endif |
|
|
1215 | { |
|
|
1216 | ev_rt_now = ev_time (); |
|
|
1217 | |
|
|
1218 | if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
|
|
1219 | { |
|
|
1220 | #if EV_PERIODICS |
|
|
1221 | periodics_reschedule (EV_A); |
|
|
1222 | #endif |
|
|
1223 | |
|
|
1224 | /* adjust timers. this is easy, as the offset is the same for all */ |
|
|
1225 | for (i = 0; i < timercnt; ++i) |
|
|
1226 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
|
|
1227 | } |
|
|
1228 | |
1773 | |
1229 | mn_now = ev_rt_now; |
1774 | mn_now = ev_rt_now; |
1230 | } |
1775 | } |
1231 | } |
1776 | } |
1232 | |
1777 | |
… | |
… | |
1245 | static int loop_done; |
1790 | static int loop_done; |
1246 | |
1791 | |
1247 | void |
1792 | void |
1248 | ev_loop (EV_P_ int flags) |
1793 | ev_loop (EV_P_ int flags) |
1249 | { |
1794 | { |
1250 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) |
1795 | loop_done = EVUNLOOP_CANCEL; |
1251 | ? EVUNLOOP_ONE |
|
|
1252 | : EVUNLOOP_CANCEL; |
|
|
1253 | |
1796 | |
1254 | while (activecnt) |
1797 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
|
|
1798 | |
|
|
1799 | do |
1255 | { |
1800 | { |
|
|
1801 | #ifndef _WIN32 |
|
|
1802 | if (expect_false (curpid)) /* penalise the forking check even more */ |
|
|
1803 | if (expect_false (getpid () != curpid)) |
|
|
1804 | { |
|
|
1805 | curpid = getpid (); |
|
|
1806 | postfork = 1; |
|
|
1807 | } |
|
|
1808 | #endif |
|
|
1809 | |
|
|
1810 | #if EV_FORK_ENABLE |
|
|
1811 | /* we might have forked, so queue fork handlers */ |
|
|
1812 | if (expect_false (postfork)) |
|
|
1813 | if (forkcnt) |
|
|
1814 | { |
|
|
1815 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
|
|
1816 | call_pending (EV_A); |
|
|
1817 | } |
|
|
1818 | #endif |
|
|
1819 | |
1256 | /* queue check watchers (and execute them) */ |
1820 | /* queue prepare watchers (and execute them) */ |
1257 | if (expect_false (preparecnt)) |
1821 | if (expect_false (preparecnt)) |
1258 | { |
1822 | { |
1259 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1823 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1260 | call_pending (EV_A); |
1824 | call_pending (EV_A); |
1261 | } |
1825 | } |
1262 | |
1826 | |
|
|
1827 | if (expect_false (!activecnt)) |
|
|
1828 | break; |
|
|
1829 | |
1263 | /* we might have forked, so reify kernel state if necessary */ |
1830 | /* we might have forked, so reify kernel state if necessary */ |
1264 | if (expect_false (postfork)) |
1831 | if (expect_false (postfork)) |
1265 | loop_fork (EV_A); |
1832 | loop_fork (EV_A); |
1266 | |
1833 | |
1267 | /* update fd-related kernel structures */ |
1834 | /* update fd-related kernel structures */ |
1268 | fd_reify (EV_A); |
1835 | fd_reify (EV_A); |
1269 | |
1836 | |
1270 | /* calculate blocking time */ |
1837 | /* calculate blocking time */ |
1271 | { |
1838 | { |
1272 | double block; |
1839 | ev_tstamp waittime = 0.; |
|
|
1840 | ev_tstamp sleeptime = 0.; |
1273 | |
1841 | |
1274 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
1842 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
1275 | block = 0.; /* do not block at all */ |
|
|
1276 | else |
|
|
1277 | { |
1843 | { |
1278 | /* update time to cancel out callback processing overhead */ |
1844 | /* update time to cancel out callback processing overhead */ |
1279 | #if EV_USE_MONOTONIC |
|
|
1280 | if (expect_true (have_monotonic)) |
|
|
1281 | time_update_monotonic (EV_A); |
1845 | time_update (EV_A_ 1e100); |
1282 | else |
|
|
1283 | #endif |
|
|
1284 | { |
|
|
1285 | ev_rt_now = ev_time (); |
|
|
1286 | mn_now = ev_rt_now; |
|
|
1287 | } |
|
|
1288 | |
1846 | |
1289 | block = MAX_BLOCKTIME; |
1847 | waittime = MAX_BLOCKTIME; |
1290 | |
1848 | |
1291 | if (timercnt) |
1849 | if (timercnt) |
1292 | { |
1850 | { |
1293 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
1851 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
1294 | if (block > to) block = to; |
1852 | if (waittime > to) waittime = to; |
1295 | } |
1853 | } |
1296 | |
1854 | |
1297 | #if EV_PERIODICS |
1855 | #if EV_PERIODIC_ENABLE |
1298 | if (periodiccnt) |
1856 | if (periodiccnt) |
1299 | { |
1857 | { |
1300 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
1858 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
1301 | if (block > to) block = to; |
1859 | if (waittime > to) waittime = to; |
1302 | } |
1860 | } |
1303 | #endif |
1861 | #endif |
1304 | |
1862 | |
1305 | if (expect_false (block < 0.)) block = 0.; |
1863 | if (expect_false (waittime < timeout_blocktime)) |
|
|
1864 | waittime = timeout_blocktime; |
|
|
1865 | |
|
|
1866 | sleeptime = waittime - backend_fudge; |
|
|
1867 | |
|
|
1868 | if (expect_true (sleeptime > io_blocktime)) |
|
|
1869 | sleeptime = io_blocktime; |
|
|
1870 | |
|
|
1871 | if (sleeptime) |
|
|
1872 | { |
|
|
1873 | ev_sleep (sleeptime); |
|
|
1874 | waittime -= sleeptime; |
|
|
1875 | } |
1306 | } |
1876 | } |
1307 | |
1877 | |
|
|
1878 | ++loop_count; |
1308 | backend_poll (EV_A_ block); |
1879 | backend_poll (EV_A_ waittime); |
|
|
1880 | |
|
|
1881 | /* update ev_rt_now, do magic */ |
|
|
1882 | time_update (EV_A_ waittime + sleeptime); |
1309 | } |
1883 | } |
1310 | |
|
|
1311 | /* update ev_rt_now, do magic */ |
|
|
1312 | time_update (EV_A); |
|
|
1313 | |
1884 | |
1314 | /* queue pending timers and reschedule them */ |
1885 | /* queue pending timers and reschedule them */ |
1315 | timers_reify (EV_A); /* relative timers called last */ |
1886 | timers_reify (EV_A); /* relative timers called last */ |
1316 | #if EV_PERIODICS |
1887 | #if EV_PERIODIC_ENABLE |
1317 | periodics_reify (EV_A); /* absolute timers called first */ |
1888 | periodics_reify (EV_A); /* absolute timers called first */ |
1318 | #endif |
1889 | #endif |
1319 | |
1890 | |
|
|
1891 | #if EV_IDLE_ENABLE |
1320 | /* queue idle watchers unless other events are pending */ |
1892 | /* queue idle watchers unless other events are pending */ |
1321 | if (idlecnt && !any_pending (EV_A)) |
1893 | idle_reify (EV_A); |
1322 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
1894 | #endif |
1323 | |
1895 | |
1324 | /* queue check watchers, to be executed first */ |
1896 | /* queue check watchers, to be executed first */ |
1325 | if (expect_false (checkcnt)) |
1897 | if (expect_false (checkcnt)) |
1326 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1898 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1327 | |
1899 | |
1328 | call_pending (EV_A); |
1900 | call_pending (EV_A); |
1329 | |
|
|
1330 | if (expect_false (loop_done)) |
|
|
1331 | break; |
|
|
1332 | } |
1901 | } |
|
|
1902 | while (expect_true ( |
|
|
1903 | activecnt |
|
|
1904 | && !loop_done |
|
|
1905 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
|
|
1906 | )); |
1333 | |
1907 | |
1334 | if (loop_done == EVUNLOOP_ONE) |
1908 | if (loop_done == EVUNLOOP_ONE) |
1335 | loop_done = EVUNLOOP_CANCEL; |
1909 | loop_done = EVUNLOOP_CANCEL; |
1336 | } |
1910 | } |
1337 | |
1911 | |
… | |
… | |
1341 | loop_done = how; |
1915 | loop_done = how; |
1342 | } |
1916 | } |
1343 | |
1917 | |
1344 | /*****************************************************************************/ |
1918 | /*****************************************************************************/ |
1345 | |
1919 | |
1346 | inline void |
1920 | void inline_size |
1347 | wlist_add (WL *head, WL elem) |
1921 | wlist_add (WL *head, WL elem) |
1348 | { |
1922 | { |
1349 | elem->next = *head; |
1923 | elem->next = *head; |
1350 | *head = elem; |
1924 | *head = elem; |
1351 | } |
1925 | } |
1352 | |
1926 | |
1353 | inline void |
1927 | void inline_size |
1354 | wlist_del (WL *head, WL elem) |
1928 | wlist_del (WL *head, WL elem) |
1355 | { |
1929 | { |
1356 | while (*head) |
1930 | while (*head) |
1357 | { |
1931 | { |
1358 | if (*head == elem) |
1932 | if (*head == elem) |
… | |
… | |
1363 | |
1937 | |
1364 | head = &(*head)->next; |
1938 | head = &(*head)->next; |
1365 | } |
1939 | } |
1366 | } |
1940 | } |
1367 | |
1941 | |
1368 | inline void |
1942 | void inline_speed |
1369 | ev_clear_pending (EV_P_ W w) |
1943 | clear_pending (EV_P_ W w) |
1370 | { |
1944 | { |
1371 | if (w->pending) |
1945 | if (w->pending) |
1372 | { |
1946 | { |
1373 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1947 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1374 | w->pending = 0; |
1948 | w->pending = 0; |
1375 | } |
1949 | } |
1376 | } |
1950 | } |
1377 | |
1951 | |
1378 | inline void |
1952 | int |
|
|
1953 | ev_clear_pending (EV_P_ void *w) |
|
|
1954 | { |
|
|
1955 | W w_ = (W)w; |
|
|
1956 | int pending = w_->pending; |
|
|
1957 | |
|
|
1958 | if (expect_true (pending)) |
|
|
1959 | { |
|
|
1960 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
1961 | w_->pending = 0; |
|
|
1962 | p->w = 0; |
|
|
1963 | return p->events; |
|
|
1964 | } |
|
|
1965 | else |
|
|
1966 | return 0; |
|
|
1967 | } |
|
|
1968 | |
|
|
1969 | void inline_size |
|
|
1970 | pri_adjust (EV_P_ W w) |
|
|
1971 | { |
|
|
1972 | int pri = w->priority; |
|
|
1973 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
|
|
1974 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
|
|
1975 | w->priority = pri; |
|
|
1976 | } |
|
|
1977 | |
|
|
1978 | void inline_speed |
1379 | ev_start (EV_P_ W w, int active) |
1979 | ev_start (EV_P_ W w, int active) |
1380 | { |
1980 | { |
1381 | if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; |
1981 | pri_adjust (EV_A_ w); |
1382 | if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; |
|
|
1383 | |
|
|
1384 | w->active = active; |
1982 | w->active = active; |
1385 | ev_ref (EV_A); |
1983 | ev_ref (EV_A); |
1386 | } |
1984 | } |
1387 | |
1985 | |
1388 | inline void |
1986 | void inline_size |
1389 | ev_stop (EV_P_ W w) |
1987 | ev_stop (EV_P_ W w) |
1390 | { |
1988 | { |
1391 | ev_unref (EV_A); |
1989 | ev_unref (EV_A); |
1392 | w->active = 0; |
1990 | w->active = 0; |
1393 | } |
1991 | } |
1394 | |
1992 | |
1395 | /*****************************************************************************/ |
1993 | /*****************************************************************************/ |
1396 | |
1994 | |
1397 | void |
1995 | void noinline |
1398 | ev_io_start (EV_P_ ev_io *w) |
1996 | ev_io_start (EV_P_ ev_io *w) |
1399 | { |
1997 | { |
1400 | int fd = w->fd; |
1998 | int fd = w->fd; |
1401 | |
1999 | |
1402 | if (expect_false (ev_is_active (w))) |
2000 | if (expect_false (ev_is_active (w))) |
… | |
… | |
1404 | |
2002 | |
1405 | assert (("ev_io_start called with negative fd", fd >= 0)); |
2003 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1406 | |
2004 | |
1407 | ev_start (EV_A_ (W)w, 1); |
2005 | ev_start (EV_A_ (W)w, 1); |
1408 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
2006 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
1409 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
2007 | wlist_add (&anfds[fd].head, (WL)w); |
1410 | |
2008 | |
1411 | fd_change (EV_A_ fd); |
2009 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
|
|
2010 | w->events &= ~EV_IOFDSET; |
1412 | } |
2011 | } |
1413 | |
2012 | |
1414 | void |
2013 | void noinline |
1415 | ev_io_stop (EV_P_ ev_io *w) |
2014 | ev_io_stop (EV_P_ ev_io *w) |
1416 | { |
2015 | { |
1417 | ev_clear_pending (EV_A_ (W)w); |
2016 | clear_pending (EV_A_ (W)w); |
1418 | if (expect_false (!ev_is_active (w))) |
2017 | if (expect_false (!ev_is_active (w))) |
1419 | return; |
2018 | return; |
1420 | |
2019 | |
1421 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2020 | assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
1422 | |
2021 | |
1423 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
2022 | wlist_del (&anfds[w->fd].head, (WL)w); |
1424 | ev_stop (EV_A_ (W)w); |
2023 | ev_stop (EV_A_ (W)w); |
1425 | |
2024 | |
1426 | fd_change (EV_A_ w->fd); |
2025 | fd_change (EV_A_ w->fd, 1); |
1427 | } |
2026 | } |
1428 | |
2027 | |
1429 | void |
2028 | void noinline |
1430 | ev_timer_start (EV_P_ ev_timer *w) |
2029 | ev_timer_start (EV_P_ ev_timer *w) |
1431 | { |
2030 | { |
1432 | if (expect_false (ev_is_active (w))) |
2031 | if (expect_false (ev_is_active (w))) |
1433 | return; |
2032 | return; |
1434 | |
2033 | |
1435 | ((WT)w)->at += mn_now; |
2034 | ev_at (w) += mn_now; |
1436 | |
2035 | |
1437 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2036 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1438 | |
2037 | |
1439 | ev_start (EV_A_ (W)w, ++timercnt); |
2038 | ev_start (EV_A_ (W)w, ++timercnt + HEAP0 - 1); |
1440 | array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2); |
2039 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
1441 | timers [timercnt - 1] = w; |
2040 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
1442 | upheap ((WT *)timers, timercnt - 1); |
2041 | ANHE_at_set (timers [ev_active (w)]); |
|
|
2042 | upheap (timers, ev_active (w)); |
1443 | |
2043 | |
1444 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
2044 | /*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
1445 | } |
2045 | } |
1446 | |
2046 | |
1447 | void |
2047 | void noinline |
1448 | ev_timer_stop (EV_P_ ev_timer *w) |
2048 | ev_timer_stop (EV_P_ ev_timer *w) |
1449 | { |
2049 | { |
1450 | ev_clear_pending (EV_A_ (W)w); |
2050 | clear_pending (EV_A_ (W)w); |
1451 | if (expect_false (!ev_is_active (w))) |
2051 | if (expect_false (!ev_is_active (w))) |
1452 | return; |
2052 | return; |
1453 | |
2053 | |
|
|
2054 | { |
|
|
2055 | int active = ev_active (w); |
|
|
2056 | |
1454 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
2057 | assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
1455 | |
2058 | |
1456 | if (expect_true (((W)w)->active < timercnt--)) |
2059 | if (expect_true (active < timercnt + HEAP0 - 1)) |
1457 | { |
2060 | { |
1458 | timers [((W)w)->active - 1] = timers [timercnt]; |
2061 | timers [active] = timers [timercnt + HEAP0 - 1]; |
1459 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
2062 | adjustheap (timers, timercnt, active); |
1460 | } |
2063 | } |
1461 | |
2064 | |
1462 | ((WT)w)->at -= mn_now; |
2065 | --timercnt; |
|
|
2066 | } |
|
|
2067 | |
|
|
2068 | ev_at (w) -= mn_now; |
1463 | |
2069 | |
1464 | ev_stop (EV_A_ (W)w); |
2070 | ev_stop (EV_A_ (W)w); |
1465 | } |
2071 | } |
1466 | |
2072 | |
1467 | void |
2073 | void noinline |
1468 | ev_timer_again (EV_P_ ev_timer *w) |
2074 | ev_timer_again (EV_P_ ev_timer *w) |
1469 | { |
2075 | { |
1470 | if (ev_is_active (w)) |
2076 | if (ev_is_active (w)) |
1471 | { |
2077 | { |
1472 | if (w->repeat) |
2078 | if (w->repeat) |
1473 | { |
2079 | { |
1474 | ((WT)w)->at = mn_now + w->repeat; |
2080 | ev_at (w) = mn_now + w->repeat; |
|
|
2081 | ANHE_at_set (timers [ev_active (w)]); |
1475 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
2082 | adjustheap (timers, timercnt, ev_active (w)); |
1476 | } |
2083 | } |
1477 | else |
2084 | else |
1478 | ev_timer_stop (EV_A_ w); |
2085 | ev_timer_stop (EV_A_ w); |
1479 | } |
2086 | } |
1480 | else if (w->repeat) |
2087 | else if (w->repeat) |
1481 | { |
2088 | { |
1482 | w->at = w->repeat; |
2089 | ev_at (w) = w->repeat; |
1483 | ev_timer_start (EV_A_ w); |
2090 | ev_timer_start (EV_A_ w); |
1484 | } |
2091 | } |
1485 | } |
2092 | } |
1486 | |
2093 | |
1487 | #if EV_PERIODICS |
2094 | #if EV_PERIODIC_ENABLE |
1488 | void |
2095 | void noinline |
1489 | ev_periodic_start (EV_P_ ev_periodic *w) |
2096 | ev_periodic_start (EV_P_ ev_periodic *w) |
1490 | { |
2097 | { |
1491 | if (expect_false (ev_is_active (w))) |
2098 | if (expect_false (ev_is_active (w))) |
1492 | return; |
2099 | return; |
1493 | |
2100 | |
1494 | if (w->reschedule_cb) |
2101 | if (w->reschedule_cb) |
1495 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
2102 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1496 | else if (w->interval) |
2103 | else if (w->interval) |
1497 | { |
2104 | { |
1498 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2105 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1499 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2106 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1500 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
2107 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1501 | } |
2108 | } |
|
|
2109 | else |
|
|
2110 | ev_at (w) = w->offset; |
1502 | |
2111 | |
1503 | ev_start (EV_A_ (W)w, ++periodiccnt); |
2112 | ev_start (EV_A_ (W)w, ++periodiccnt + HEAP0 - 1); |
1504 | array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); |
2113 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
1505 | periodics [periodiccnt - 1] = w; |
2114 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
1506 | upheap ((WT *)periodics, periodiccnt - 1); |
2115 | ANHE_at_set (periodics [ev_active (w)]); |
|
|
2116 | upheap (periodics, ev_active (w)); |
1507 | |
2117 | |
1508 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
2118 | /*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
1509 | } |
2119 | } |
1510 | |
2120 | |
1511 | void |
2121 | void noinline |
1512 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2122 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1513 | { |
2123 | { |
1514 | ev_clear_pending (EV_A_ (W)w); |
2124 | clear_pending (EV_A_ (W)w); |
1515 | if (expect_false (!ev_is_active (w))) |
2125 | if (expect_false (!ev_is_active (w))) |
1516 | return; |
2126 | return; |
1517 | |
2127 | |
|
|
2128 | { |
|
|
2129 | int active = ev_active (w); |
|
|
2130 | |
1518 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
2131 | assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
1519 | |
2132 | |
1520 | if (expect_true (((W)w)->active < periodiccnt--)) |
2133 | if (expect_true (active < periodiccnt + HEAP0 - 1)) |
1521 | { |
2134 | { |
1522 | periodics [((W)w)->active - 1] = periodics [periodiccnt]; |
2135 | periodics [active] = periodics [periodiccnt + HEAP0 - 1]; |
1523 | adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); |
2136 | adjustheap (periodics, periodiccnt, active); |
1524 | } |
2137 | } |
|
|
2138 | |
|
|
2139 | --periodiccnt; |
|
|
2140 | } |
1525 | |
2141 | |
1526 | ev_stop (EV_A_ (W)w); |
2142 | ev_stop (EV_A_ (W)w); |
1527 | } |
2143 | } |
1528 | |
2144 | |
1529 | void |
2145 | void noinline |
1530 | ev_periodic_again (EV_P_ ev_periodic *w) |
2146 | ev_periodic_again (EV_P_ ev_periodic *w) |
1531 | { |
2147 | { |
1532 | /* TODO: use adjustheap and recalculation */ |
2148 | /* TODO: use adjustheap and recalculation */ |
1533 | ev_periodic_stop (EV_A_ w); |
2149 | ev_periodic_stop (EV_A_ w); |
1534 | ev_periodic_start (EV_A_ w); |
2150 | ev_periodic_start (EV_A_ w); |
1535 | } |
2151 | } |
1536 | #endif |
2152 | #endif |
1537 | |
2153 | |
1538 | void |
2154 | #ifndef SA_RESTART |
|
|
2155 | # define SA_RESTART 0 |
|
|
2156 | #endif |
|
|
2157 | |
|
|
2158 | void noinline |
1539 | ev_idle_start (EV_P_ ev_idle *w) |
2159 | ev_signal_start (EV_P_ ev_signal *w) |
1540 | { |
2160 | { |
|
|
2161 | #if EV_MULTIPLICITY |
|
|
2162 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
2163 | #endif |
1541 | if (expect_false (ev_is_active (w))) |
2164 | if (expect_false (ev_is_active (w))) |
1542 | return; |
2165 | return; |
1543 | |
2166 | |
|
|
2167 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
|
|
2168 | |
|
|
2169 | evpipe_init (EV_A); |
|
|
2170 | |
|
|
2171 | { |
|
|
2172 | #ifndef _WIN32 |
|
|
2173 | sigset_t full, prev; |
|
|
2174 | sigfillset (&full); |
|
|
2175 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2176 | #endif |
|
|
2177 | |
|
|
2178 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
|
|
2179 | |
|
|
2180 | #ifndef _WIN32 |
|
|
2181 | sigprocmask (SIG_SETMASK, &prev, 0); |
|
|
2182 | #endif |
|
|
2183 | } |
|
|
2184 | |
1544 | ev_start (EV_A_ (W)w, ++idlecnt); |
2185 | ev_start (EV_A_ (W)w, 1); |
1545 | array_needsize (ev_idle *, idles, idlemax, idlecnt, EMPTY2); |
2186 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
1546 | idles [idlecnt - 1] = w; |
|
|
1547 | } |
|
|
1548 | |
2187 | |
1549 | void |
2188 | if (!((WL)w)->next) |
|
|
2189 | { |
|
|
2190 | #if _WIN32 |
|
|
2191 | signal (w->signum, ev_sighandler); |
|
|
2192 | #else |
|
|
2193 | struct sigaction sa; |
|
|
2194 | sa.sa_handler = ev_sighandler; |
|
|
2195 | sigfillset (&sa.sa_mask); |
|
|
2196 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
|
|
2197 | sigaction (w->signum, &sa, 0); |
|
|
2198 | #endif |
|
|
2199 | } |
|
|
2200 | } |
|
|
2201 | |
|
|
2202 | void noinline |
1550 | ev_idle_stop (EV_P_ ev_idle *w) |
2203 | ev_signal_stop (EV_P_ ev_signal *w) |
1551 | { |
2204 | { |
1552 | ev_clear_pending (EV_A_ (W)w); |
2205 | clear_pending (EV_A_ (W)w); |
1553 | if (expect_false (!ev_is_active (w))) |
2206 | if (expect_false (!ev_is_active (w))) |
1554 | return; |
2207 | return; |
1555 | |
2208 | |
1556 | idles [((W)w)->active - 1] = idles [--idlecnt]; |
2209 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
1557 | ev_stop (EV_A_ (W)w); |
2210 | ev_stop (EV_A_ (W)w); |
|
|
2211 | |
|
|
2212 | if (!signals [w->signum - 1].head) |
|
|
2213 | signal (w->signum, SIG_DFL); |
1558 | } |
2214 | } |
|
|
2215 | |
|
|
2216 | void |
|
|
2217 | ev_child_start (EV_P_ ev_child *w) |
|
|
2218 | { |
|
|
2219 | #if EV_MULTIPLICITY |
|
|
2220 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
2221 | #endif |
|
|
2222 | if (expect_false (ev_is_active (w))) |
|
|
2223 | return; |
|
|
2224 | |
|
|
2225 | ev_start (EV_A_ (W)w, 1); |
|
|
2226 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
|
|
2227 | } |
|
|
2228 | |
|
|
2229 | void |
|
|
2230 | ev_child_stop (EV_P_ ev_child *w) |
|
|
2231 | { |
|
|
2232 | clear_pending (EV_A_ (W)w); |
|
|
2233 | if (expect_false (!ev_is_active (w))) |
|
|
2234 | return; |
|
|
2235 | |
|
|
2236 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
|
|
2237 | ev_stop (EV_A_ (W)w); |
|
|
2238 | } |
|
|
2239 | |
|
|
2240 | #if EV_STAT_ENABLE |
|
|
2241 | |
|
|
2242 | # ifdef _WIN32 |
|
|
2243 | # undef lstat |
|
|
2244 | # define lstat(a,b) _stati64 (a,b) |
|
|
2245 | # endif |
|
|
2246 | |
|
|
2247 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
2248 | #define MIN_STAT_INTERVAL 0.1074891 |
|
|
2249 | |
|
|
2250 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
|
|
2251 | |
|
|
2252 | #if EV_USE_INOTIFY |
|
|
2253 | # define EV_INOTIFY_BUFSIZE 8192 |
|
|
2254 | |
|
|
2255 | static void noinline |
|
|
2256 | infy_add (EV_P_ ev_stat *w) |
|
|
2257 | { |
|
|
2258 | 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); |
|
|
2259 | |
|
|
2260 | if (w->wd < 0) |
|
|
2261 | { |
|
|
2262 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
|
|
2263 | |
|
|
2264 | /* monitor some parent directory for speedup hints */ |
|
|
2265 | /* note that exceeding the hardcoded limit is not a correctness issue, */ |
|
|
2266 | /* but an efficiency issue only */ |
|
|
2267 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
|
|
2268 | { |
|
|
2269 | char path [4096]; |
|
|
2270 | strcpy (path, w->path); |
|
|
2271 | |
|
|
2272 | do |
|
|
2273 | { |
|
|
2274 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
|
|
2275 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
|
|
2276 | |
|
|
2277 | char *pend = strrchr (path, '/'); |
|
|
2278 | |
|
|
2279 | if (!pend) |
|
|
2280 | break; /* whoops, no '/', complain to your admin */ |
|
|
2281 | |
|
|
2282 | *pend = 0; |
|
|
2283 | w->wd = inotify_add_watch (fs_fd, path, mask); |
|
|
2284 | } |
|
|
2285 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
|
|
2286 | } |
|
|
2287 | } |
|
|
2288 | else |
|
|
2289 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
2290 | |
|
|
2291 | if (w->wd >= 0) |
|
|
2292 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
2293 | } |
|
|
2294 | |
|
|
2295 | static void noinline |
|
|
2296 | infy_del (EV_P_ ev_stat *w) |
|
|
2297 | { |
|
|
2298 | int slot; |
|
|
2299 | int wd = w->wd; |
|
|
2300 | |
|
|
2301 | if (wd < 0) |
|
|
2302 | return; |
|
|
2303 | |
|
|
2304 | w->wd = -2; |
|
|
2305 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
|
|
2306 | wlist_del (&fs_hash [slot].head, (WL)w); |
|
|
2307 | |
|
|
2308 | /* remove this watcher, if others are watching it, they will rearm */ |
|
|
2309 | inotify_rm_watch (fs_fd, wd); |
|
|
2310 | } |
|
|
2311 | |
|
|
2312 | static void noinline |
|
|
2313 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
|
|
2314 | { |
|
|
2315 | if (slot < 0) |
|
|
2316 | /* overflow, need to check for all hahs slots */ |
|
|
2317 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
2318 | infy_wd (EV_A_ slot, wd, ev); |
|
|
2319 | else |
|
|
2320 | { |
|
|
2321 | WL w_; |
|
|
2322 | |
|
|
2323 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
|
|
2324 | { |
|
|
2325 | ev_stat *w = (ev_stat *)w_; |
|
|
2326 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
|
|
2327 | |
|
|
2328 | if (w->wd == wd || wd == -1) |
|
|
2329 | { |
|
|
2330 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
|
|
2331 | { |
|
|
2332 | w->wd = -1; |
|
|
2333 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
2334 | } |
|
|
2335 | |
|
|
2336 | stat_timer_cb (EV_A_ &w->timer, 0); |
|
|
2337 | } |
|
|
2338 | } |
|
|
2339 | } |
|
|
2340 | } |
|
|
2341 | |
|
|
2342 | static void |
|
|
2343 | infy_cb (EV_P_ ev_io *w, int revents) |
|
|
2344 | { |
|
|
2345 | char buf [EV_INOTIFY_BUFSIZE]; |
|
|
2346 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2347 | int ofs; |
|
|
2348 | int len = read (fs_fd, buf, sizeof (buf)); |
|
|
2349 | |
|
|
2350 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
|
|
2351 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
2352 | } |
|
|
2353 | |
|
|
2354 | void inline_size |
|
|
2355 | infy_init (EV_P) |
|
|
2356 | { |
|
|
2357 | if (fs_fd != -2) |
|
|
2358 | return; |
|
|
2359 | |
|
|
2360 | fs_fd = inotify_init (); |
|
|
2361 | |
|
|
2362 | if (fs_fd >= 0) |
|
|
2363 | { |
|
|
2364 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
|
|
2365 | ev_set_priority (&fs_w, EV_MAXPRI); |
|
|
2366 | ev_io_start (EV_A_ &fs_w); |
|
|
2367 | } |
|
|
2368 | } |
|
|
2369 | |
|
|
2370 | void inline_size |
|
|
2371 | infy_fork (EV_P) |
|
|
2372 | { |
|
|
2373 | int slot; |
|
|
2374 | |
|
|
2375 | if (fs_fd < 0) |
|
|
2376 | return; |
|
|
2377 | |
|
|
2378 | close (fs_fd); |
|
|
2379 | fs_fd = inotify_init (); |
|
|
2380 | |
|
|
2381 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
2382 | { |
|
|
2383 | WL w_ = fs_hash [slot].head; |
|
|
2384 | fs_hash [slot].head = 0; |
|
|
2385 | |
|
|
2386 | while (w_) |
|
|
2387 | { |
|
|
2388 | ev_stat *w = (ev_stat *)w_; |
|
|
2389 | w_ = w_->next; /* lets us add this watcher */ |
|
|
2390 | |
|
|
2391 | w->wd = -1; |
|
|
2392 | |
|
|
2393 | if (fs_fd >= 0) |
|
|
2394 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
2395 | else |
|
|
2396 | ev_timer_start (EV_A_ &w->timer); |
|
|
2397 | } |
|
|
2398 | |
|
|
2399 | } |
|
|
2400 | } |
|
|
2401 | |
|
|
2402 | #endif |
|
|
2403 | |
|
|
2404 | void |
|
|
2405 | ev_stat_stat (EV_P_ ev_stat *w) |
|
|
2406 | { |
|
|
2407 | if (lstat (w->path, &w->attr) < 0) |
|
|
2408 | w->attr.st_nlink = 0; |
|
|
2409 | else if (!w->attr.st_nlink) |
|
|
2410 | w->attr.st_nlink = 1; |
|
|
2411 | } |
|
|
2412 | |
|
|
2413 | static void noinline |
|
|
2414 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
|
|
2415 | { |
|
|
2416 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
|
|
2417 | |
|
|
2418 | /* we copy this here each the time so that */ |
|
|
2419 | /* prev has the old value when the callback gets invoked */ |
|
|
2420 | w->prev = w->attr; |
|
|
2421 | ev_stat_stat (EV_A_ w); |
|
|
2422 | |
|
|
2423 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
|
|
2424 | if ( |
|
|
2425 | w->prev.st_dev != w->attr.st_dev |
|
|
2426 | || w->prev.st_ino != w->attr.st_ino |
|
|
2427 | || w->prev.st_mode != w->attr.st_mode |
|
|
2428 | || w->prev.st_nlink != w->attr.st_nlink |
|
|
2429 | || w->prev.st_uid != w->attr.st_uid |
|
|
2430 | || w->prev.st_gid != w->attr.st_gid |
|
|
2431 | || w->prev.st_rdev != w->attr.st_rdev |
|
|
2432 | || w->prev.st_size != w->attr.st_size |
|
|
2433 | || w->prev.st_atime != w->attr.st_atime |
|
|
2434 | || w->prev.st_mtime != w->attr.st_mtime |
|
|
2435 | || w->prev.st_ctime != w->attr.st_ctime |
|
|
2436 | ) { |
|
|
2437 | #if EV_USE_INOTIFY |
|
|
2438 | infy_del (EV_A_ w); |
|
|
2439 | infy_add (EV_A_ w); |
|
|
2440 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
2441 | #endif |
|
|
2442 | |
|
|
2443 | ev_feed_event (EV_A_ w, EV_STAT); |
|
|
2444 | } |
|
|
2445 | } |
|
|
2446 | |
|
|
2447 | void |
|
|
2448 | ev_stat_start (EV_P_ ev_stat *w) |
|
|
2449 | { |
|
|
2450 | if (expect_false (ev_is_active (w))) |
|
|
2451 | return; |
|
|
2452 | |
|
|
2453 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2454 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2455 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2456 | |
|
|
2457 | ev_stat_stat (EV_A_ w); |
|
|
2458 | |
|
|
2459 | if (w->interval < MIN_STAT_INTERVAL) |
|
|
2460 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2461 | |
|
|
2462 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
|
|
2463 | ev_set_priority (&w->timer, ev_priority (w)); |
|
|
2464 | |
|
|
2465 | #if EV_USE_INOTIFY |
|
|
2466 | infy_init (EV_A); |
|
|
2467 | |
|
|
2468 | if (fs_fd >= 0) |
|
|
2469 | infy_add (EV_A_ w); |
|
|
2470 | else |
|
|
2471 | #endif |
|
|
2472 | ev_timer_start (EV_A_ &w->timer); |
|
|
2473 | |
|
|
2474 | ev_start (EV_A_ (W)w, 1); |
|
|
2475 | } |
|
|
2476 | |
|
|
2477 | void |
|
|
2478 | ev_stat_stop (EV_P_ ev_stat *w) |
|
|
2479 | { |
|
|
2480 | clear_pending (EV_A_ (W)w); |
|
|
2481 | if (expect_false (!ev_is_active (w))) |
|
|
2482 | return; |
|
|
2483 | |
|
|
2484 | #if EV_USE_INOTIFY |
|
|
2485 | infy_del (EV_A_ w); |
|
|
2486 | #endif |
|
|
2487 | ev_timer_stop (EV_A_ &w->timer); |
|
|
2488 | |
|
|
2489 | ev_stop (EV_A_ (W)w); |
|
|
2490 | } |
|
|
2491 | #endif |
|
|
2492 | |
|
|
2493 | #if EV_IDLE_ENABLE |
|
|
2494 | void |
|
|
2495 | ev_idle_start (EV_P_ ev_idle *w) |
|
|
2496 | { |
|
|
2497 | if (expect_false (ev_is_active (w))) |
|
|
2498 | return; |
|
|
2499 | |
|
|
2500 | pri_adjust (EV_A_ (W)w); |
|
|
2501 | |
|
|
2502 | { |
|
|
2503 | int active = ++idlecnt [ABSPRI (w)]; |
|
|
2504 | |
|
|
2505 | ++idleall; |
|
|
2506 | ev_start (EV_A_ (W)w, active); |
|
|
2507 | |
|
|
2508 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
|
|
2509 | idles [ABSPRI (w)][active - 1] = w; |
|
|
2510 | } |
|
|
2511 | } |
|
|
2512 | |
|
|
2513 | void |
|
|
2514 | ev_idle_stop (EV_P_ ev_idle *w) |
|
|
2515 | { |
|
|
2516 | clear_pending (EV_A_ (W)w); |
|
|
2517 | if (expect_false (!ev_is_active (w))) |
|
|
2518 | return; |
|
|
2519 | |
|
|
2520 | { |
|
|
2521 | int active = ev_active (w); |
|
|
2522 | |
|
|
2523 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
|
|
2524 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
|
|
2525 | |
|
|
2526 | ev_stop (EV_A_ (W)w); |
|
|
2527 | --idleall; |
|
|
2528 | } |
|
|
2529 | } |
|
|
2530 | #endif |
1559 | |
2531 | |
1560 | void |
2532 | void |
1561 | ev_prepare_start (EV_P_ ev_prepare *w) |
2533 | ev_prepare_start (EV_P_ ev_prepare *w) |
1562 | { |
2534 | { |
1563 | if (expect_false (ev_is_active (w))) |
2535 | if (expect_false (ev_is_active (w))) |
… | |
… | |
1569 | } |
2541 | } |
1570 | |
2542 | |
1571 | void |
2543 | void |
1572 | ev_prepare_stop (EV_P_ ev_prepare *w) |
2544 | ev_prepare_stop (EV_P_ ev_prepare *w) |
1573 | { |
2545 | { |
1574 | ev_clear_pending (EV_A_ (W)w); |
2546 | clear_pending (EV_A_ (W)w); |
1575 | if (expect_false (!ev_is_active (w))) |
2547 | if (expect_false (!ev_is_active (w))) |
1576 | return; |
2548 | return; |
1577 | |
2549 | |
|
|
2550 | { |
|
|
2551 | int active = ev_active (w); |
|
|
2552 | |
1578 | prepares [((W)w)->active - 1] = prepares [--preparecnt]; |
2553 | prepares [active - 1] = prepares [--preparecnt]; |
|
|
2554 | ev_active (prepares [active - 1]) = active; |
|
|
2555 | } |
|
|
2556 | |
1579 | ev_stop (EV_A_ (W)w); |
2557 | ev_stop (EV_A_ (W)w); |
1580 | } |
2558 | } |
1581 | |
2559 | |
1582 | void |
2560 | void |
1583 | ev_check_start (EV_P_ ev_check *w) |
2561 | ev_check_start (EV_P_ ev_check *w) |
… | |
… | |
1591 | } |
2569 | } |
1592 | |
2570 | |
1593 | void |
2571 | void |
1594 | ev_check_stop (EV_P_ ev_check *w) |
2572 | ev_check_stop (EV_P_ ev_check *w) |
1595 | { |
2573 | { |
1596 | ev_clear_pending (EV_A_ (W)w); |
2574 | clear_pending (EV_A_ (W)w); |
1597 | if (expect_false (!ev_is_active (w))) |
2575 | if (expect_false (!ev_is_active (w))) |
1598 | return; |
2576 | return; |
1599 | |
2577 | |
|
|
2578 | { |
|
|
2579 | int active = ev_active (w); |
|
|
2580 | |
1600 | checks [((W)w)->active - 1] = checks [--checkcnt]; |
2581 | checks [active - 1] = checks [--checkcnt]; |
|
|
2582 | ev_active (checks [active - 1]) = active; |
|
|
2583 | } |
|
|
2584 | |
1601 | ev_stop (EV_A_ (W)w); |
2585 | ev_stop (EV_A_ (W)w); |
1602 | } |
2586 | } |
1603 | |
2587 | |
1604 | #ifndef SA_RESTART |
2588 | #if EV_EMBED_ENABLE |
1605 | # define SA_RESTART 0 |
2589 | void noinline |
1606 | #endif |
|
|
1607 | |
|
|
1608 | void |
|
|
1609 | ev_signal_start (EV_P_ ev_signal *w) |
|
|
1610 | { |
|
|
1611 | #if EV_MULTIPLICITY |
|
|
1612 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1613 | #endif |
|
|
1614 | if (expect_false (ev_is_active (w))) |
|
|
1615 | return; |
|
|
1616 | |
|
|
1617 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
|
|
1618 | |
|
|
1619 | ev_start (EV_A_ (W)w, 1); |
|
|
1620 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
|
|
1621 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
|
|
1622 | |
|
|
1623 | if (!((WL)w)->next) |
|
|
1624 | { |
|
|
1625 | #if _WIN32 |
|
|
1626 | signal (w->signum, sighandler); |
|
|
1627 | #else |
|
|
1628 | struct sigaction sa; |
|
|
1629 | sa.sa_handler = sighandler; |
|
|
1630 | sigfillset (&sa.sa_mask); |
|
|
1631 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
|
|
1632 | sigaction (w->signum, &sa, 0); |
|
|
1633 | #endif |
|
|
1634 | } |
|
|
1635 | } |
|
|
1636 | |
|
|
1637 | void |
|
|
1638 | ev_signal_stop (EV_P_ ev_signal *w) |
|
|
1639 | { |
|
|
1640 | ev_clear_pending (EV_A_ (W)w); |
|
|
1641 | if (expect_false (!ev_is_active (w))) |
|
|
1642 | return; |
|
|
1643 | |
|
|
1644 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
|
|
1645 | ev_stop (EV_A_ (W)w); |
|
|
1646 | |
|
|
1647 | if (!signals [w->signum - 1].head) |
|
|
1648 | signal (w->signum, SIG_DFL); |
|
|
1649 | } |
|
|
1650 | |
|
|
1651 | void |
|
|
1652 | ev_child_start (EV_P_ ev_child *w) |
|
|
1653 | { |
|
|
1654 | #if EV_MULTIPLICITY |
|
|
1655 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1656 | #endif |
|
|
1657 | if (expect_false (ev_is_active (w))) |
|
|
1658 | return; |
|
|
1659 | |
|
|
1660 | ev_start (EV_A_ (W)w, 1); |
|
|
1661 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
|
|
1662 | } |
|
|
1663 | |
|
|
1664 | void |
|
|
1665 | ev_child_stop (EV_P_ ev_child *w) |
|
|
1666 | { |
|
|
1667 | ev_clear_pending (EV_A_ (W)w); |
|
|
1668 | if (expect_false (!ev_is_active (w))) |
|
|
1669 | return; |
|
|
1670 | |
|
|
1671 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
|
|
1672 | ev_stop (EV_A_ (W)w); |
|
|
1673 | } |
|
|
1674 | |
|
|
1675 | #if EV_MULTIPLICITY |
|
|
1676 | void |
|
|
1677 | ev_embed_loop (EV_P_ ev_embed *w) |
2590 | ev_embed_sweep (EV_P_ ev_embed *w) |
1678 | { |
2591 | { |
1679 | ev_loop (w->loop, EVLOOP_NONBLOCK); |
2592 | ev_loop (w->other, EVLOOP_NONBLOCK); |
1680 | } |
2593 | } |
1681 | |
2594 | |
1682 | static void |
2595 | static void |
1683 | embed_cb (EV_P_ ev_io *io, int revents) |
2596 | embed_io_cb (EV_P_ ev_io *io, int revents) |
1684 | { |
2597 | { |
1685 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
2598 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
1686 | |
2599 | |
1687 | if (ev_cb (w)) |
2600 | if (ev_cb (w)) |
1688 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2601 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
1689 | else |
2602 | else |
1690 | ev_embed_loop (loop, w); |
2603 | ev_loop (w->other, EVLOOP_NONBLOCK); |
1691 | } |
2604 | } |
|
|
2605 | |
|
|
2606 | static void |
|
|
2607 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
|
|
2608 | { |
|
|
2609 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
|
|
2610 | |
|
|
2611 | { |
|
|
2612 | struct ev_loop *loop = w->other; |
|
|
2613 | |
|
|
2614 | while (fdchangecnt) |
|
|
2615 | { |
|
|
2616 | fd_reify (EV_A); |
|
|
2617 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
2618 | } |
|
|
2619 | } |
|
|
2620 | } |
|
|
2621 | |
|
|
2622 | #if 0 |
|
|
2623 | static void |
|
|
2624 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
|
|
2625 | { |
|
|
2626 | ev_idle_stop (EV_A_ idle); |
|
|
2627 | } |
|
|
2628 | #endif |
1692 | |
2629 | |
1693 | void |
2630 | void |
1694 | ev_embed_start (EV_P_ ev_embed *w) |
2631 | ev_embed_start (EV_P_ ev_embed *w) |
1695 | { |
2632 | { |
1696 | if (expect_false (ev_is_active (w))) |
2633 | if (expect_false (ev_is_active (w))) |
1697 | return; |
2634 | return; |
1698 | |
2635 | |
1699 | { |
2636 | { |
1700 | struct ev_loop *loop = w->loop; |
2637 | struct ev_loop *loop = w->other; |
1701 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2638 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
1702 | ev_io_init (&w->io, embed_cb, backend_fd, EV_READ); |
2639 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
1703 | } |
2640 | } |
1704 | |
2641 | |
1705 | ev_set_priority (&w->io, ev_priority (w)); |
2642 | ev_set_priority (&w->io, ev_priority (w)); |
1706 | ev_io_start (EV_A_ &w->io); |
2643 | ev_io_start (EV_A_ &w->io); |
|
|
2644 | |
|
|
2645 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
|
|
2646 | ev_set_priority (&w->prepare, EV_MINPRI); |
|
|
2647 | ev_prepare_start (EV_A_ &w->prepare); |
|
|
2648 | |
|
|
2649 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
|
|
2650 | |
1707 | ev_start (EV_A_ (W)w, 1); |
2651 | ev_start (EV_A_ (W)w, 1); |
1708 | } |
2652 | } |
1709 | |
2653 | |
1710 | void |
2654 | void |
1711 | ev_embed_stop (EV_P_ ev_embed *w) |
2655 | ev_embed_stop (EV_P_ ev_embed *w) |
1712 | { |
2656 | { |
1713 | ev_clear_pending (EV_A_ (W)w); |
2657 | clear_pending (EV_A_ (W)w); |
1714 | if (expect_false (!ev_is_active (w))) |
2658 | if (expect_false (!ev_is_active (w))) |
1715 | return; |
2659 | return; |
1716 | |
2660 | |
1717 | ev_io_stop (EV_A_ &w->io); |
2661 | ev_io_stop (EV_A_ &w->io); |
|
|
2662 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
2663 | |
1718 | ev_stop (EV_A_ (W)w); |
2664 | ev_stop (EV_A_ (W)w); |
|
|
2665 | } |
|
|
2666 | #endif |
|
|
2667 | |
|
|
2668 | #if EV_FORK_ENABLE |
|
|
2669 | void |
|
|
2670 | ev_fork_start (EV_P_ ev_fork *w) |
|
|
2671 | { |
|
|
2672 | if (expect_false (ev_is_active (w))) |
|
|
2673 | return; |
|
|
2674 | |
|
|
2675 | ev_start (EV_A_ (W)w, ++forkcnt); |
|
|
2676 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
|
|
2677 | forks [forkcnt - 1] = w; |
|
|
2678 | } |
|
|
2679 | |
|
|
2680 | void |
|
|
2681 | ev_fork_stop (EV_P_ ev_fork *w) |
|
|
2682 | { |
|
|
2683 | clear_pending (EV_A_ (W)w); |
|
|
2684 | if (expect_false (!ev_is_active (w))) |
|
|
2685 | return; |
|
|
2686 | |
|
|
2687 | { |
|
|
2688 | int active = ev_active (w); |
|
|
2689 | |
|
|
2690 | forks [active - 1] = forks [--forkcnt]; |
|
|
2691 | ev_active (forks [active - 1]) = active; |
|
|
2692 | } |
|
|
2693 | |
|
|
2694 | ev_stop (EV_A_ (W)w); |
|
|
2695 | } |
|
|
2696 | #endif |
|
|
2697 | |
|
|
2698 | #if EV_ASYNC_ENABLE |
|
|
2699 | void |
|
|
2700 | ev_async_start (EV_P_ ev_async *w) |
|
|
2701 | { |
|
|
2702 | if (expect_false (ev_is_active (w))) |
|
|
2703 | return; |
|
|
2704 | |
|
|
2705 | evpipe_init (EV_A); |
|
|
2706 | |
|
|
2707 | ev_start (EV_A_ (W)w, ++asynccnt); |
|
|
2708 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
|
|
2709 | asyncs [asynccnt - 1] = w; |
|
|
2710 | } |
|
|
2711 | |
|
|
2712 | void |
|
|
2713 | ev_async_stop (EV_P_ ev_async *w) |
|
|
2714 | { |
|
|
2715 | clear_pending (EV_A_ (W)w); |
|
|
2716 | if (expect_false (!ev_is_active (w))) |
|
|
2717 | return; |
|
|
2718 | |
|
|
2719 | { |
|
|
2720 | int active = ev_active (w); |
|
|
2721 | |
|
|
2722 | asyncs [active - 1] = asyncs [--asynccnt]; |
|
|
2723 | ev_active (asyncs [active - 1]) = active; |
|
|
2724 | } |
|
|
2725 | |
|
|
2726 | ev_stop (EV_A_ (W)w); |
|
|
2727 | } |
|
|
2728 | |
|
|
2729 | void |
|
|
2730 | ev_async_send (EV_P_ ev_async *w) |
|
|
2731 | { |
|
|
2732 | w->sent = 1; |
|
|
2733 | evpipe_write (EV_A_ &gotasync); |
1719 | } |
2734 | } |
1720 | #endif |
2735 | #endif |
1721 | |
2736 | |
1722 | /*****************************************************************************/ |
2737 | /*****************************************************************************/ |
1723 | |
2738 | |
… | |
… | |
1781 | ev_timer_set (&once->to, timeout, 0.); |
2796 | ev_timer_set (&once->to, timeout, 0.); |
1782 | ev_timer_start (EV_A_ &once->to); |
2797 | ev_timer_start (EV_A_ &once->to); |
1783 | } |
2798 | } |
1784 | } |
2799 | } |
1785 | |
2800 | |
|
|
2801 | #if EV_MULTIPLICITY |
|
|
2802 | #include "ev_wrap.h" |
|
|
2803 | #endif |
|
|
2804 | |
1786 | #ifdef __cplusplus |
2805 | #ifdef __cplusplus |
1787 | } |
2806 | } |
1788 | #endif |
2807 | #endif |
1789 | |
2808 | |