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 |
… | |
… | |
102 | # else |
119 | # else |
103 | # define EV_USE_INOTIFY 0 |
120 | # define EV_USE_INOTIFY 0 |
104 | # endif |
121 | # endif |
105 | # endif |
122 | # endif |
106 | |
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 | |
107 | #endif |
132 | #endif |
108 | |
133 | |
109 | #include <math.h> |
134 | #include <math.h> |
110 | #include <stdlib.h> |
135 | #include <stdlib.h> |
111 | #include <fcntl.h> |
136 | #include <fcntl.h> |
… | |
… | |
136 | # ifndef EV_SELECT_IS_WINSOCKET |
161 | # ifndef EV_SELECT_IS_WINSOCKET |
137 | # define EV_SELECT_IS_WINSOCKET 1 |
162 | # define EV_SELECT_IS_WINSOCKET 1 |
138 | # endif |
163 | # endif |
139 | #endif |
164 | #endif |
140 | |
165 | |
141 | /**/ |
166 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
142 | |
167 | |
143 | #ifndef EV_USE_MONOTONIC |
168 | #ifndef EV_USE_MONOTONIC |
144 | # define EV_USE_MONOTONIC 0 |
169 | # define EV_USE_MONOTONIC 0 |
145 | #endif |
170 | #endif |
146 | |
171 | |
147 | #ifndef EV_USE_REALTIME |
172 | #ifndef EV_USE_REALTIME |
148 | # 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 |
149 | #endif |
178 | #endif |
150 | |
179 | |
151 | #ifndef EV_USE_SELECT |
180 | #ifndef EV_USE_SELECT |
152 | # define EV_USE_SELECT 1 |
181 | # define EV_USE_SELECT 1 |
153 | #endif |
182 | #endif |
… | |
… | |
159 | # define EV_USE_POLL 1 |
188 | # define EV_USE_POLL 1 |
160 | # endif |
189 | # endif |
161 | #endif |
190 | #endif |
162 | |
191 | |
163 | #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 |
164 | # define EV_USE_EPOLL 0 |
196 | # define EV_USE_EPOLL 0 |
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197 | # endif |
165 | #endif |
198 | #endif |
166 | |
199 | |
167 | #ifndef EV_USE_KQUEUE |
200 | #ifndef EV_USE_KQUEUE |
168 | # define EV_USE_KQUEUE 0 |
201 | # define EV_USE_KQUEUE 0 |
169 | #endif |
202 | #endif |
… | |
… | |
171 | #ifndef EV_USE_PORT |
204 | #ifndef EV_USE_PORT |
172 | # define EV_USE_PORT 0 |
205 | # define EV_USE_PORT 0 |
173 | #endif |
206 | #endif |
174 | |
207 | |
175 | #ifndef EV_USE_INOTIFY |
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 |
176 | # define EV_USE_INOTIFY 0 |
212 | # define EV_USE_INOTIFY 0 |
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213 | # endif |
177 | #endif |
214 | #endif |
178 | |
215 | |
179 | #ifndef EV_PID_HASHSIZE |
216 | #ifndef EV_PID_HASHSIZE |
180 | # if EV_MINIMAL |
217 | # if EV_MINIMAL |
181 | # define EV_PID_HASHSIZE 1 |
218 | # define EV_PID_HASHSIZE 1 |
… | |
… | |
190 | # else |
227 | # else |
191 | # define EV_INOTIFY_HASHSIZE 16 |
228 | # define EV_INOTIFY_HASHSIZE 16 |
192 | # endif |
229 | # endif |
193 | #endif |
230 | #endif |
194 | |
231 | |
195 | /**/ |
232 | #ifndef EV_USE_EVENTFD |
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233 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
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234 | # define EV_USE_EVENTFD 1 |
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235 | # else |
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236 | # define EV_USE_EVENTFD 0 |
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237 | # endif |
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238 | #endif |
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239 | |
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240 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
196 | |
241 | |
197 | #ifndef CLOCK_MONOTONIC |
242 | #ifndef CLOCK_MONOTONIC |
198 | # undef EV_USE_MONOTONIC |
243 | # undef EV_USE_MONOTONIC |
199 | # define EV_USE_MONOTONIC 0 |
244 | # define EV_USE_MONOTONIC 0 |
200 | #endif |
245 | #endif |
… | |
… | |
202 | #ifndef CLOCK_REALTIME |
247 | #ifndef CLOCK_REALTIME |
203 | # undef EV_USE_REALTIME |
248 | # undef EV_USE_REALTIME |
204 | # define EV_USE_REALTIME 0 |
249 | # define EV_USE_REALTIME 0 |
205 | #endif |
250 | #endif |
206 | |
251 | |
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252 | #if !EV_STAT_ENABLE |
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253 | # undef EV_USE_INOTIFY |
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254 | # define EV_USE_INOTIFY 0 |
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255 | #endif |
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256 | |
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257 | #if !EV_USE_NANOSLEEP |
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258 | # ifndef _WIN32 |
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259 | # include <sys/select.h> |
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260 | # endif |
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261 | #endif |
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262 | |
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263 | #if EV_USE_INOTIFY |
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264 | # include <sys/inotify.h> |
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265 | #endif |
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266 | |
207 | #if EV_SELECT_IS_WINSOCKET |
267 | #if EV_SELECT_IS_WINSOCKET |
208 | # include <winsock.h> |
268 | # include <winsock.h> |
209 | #endif |
269 | #endif |
210 | |
270 | |
211 | #if !EV_STAT_ENABLE |
271 | #if EV_USE_EVENTFD |
212 | # define EV_USE_INOTIFY 0 |
272 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
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273 | # include <stdint.h> |
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274 | # ifdef __cplusplus |
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275 | extern "C" { |
213 | #endif |
276 | # endif |
214 | |
277 | int eventfd (unsigned int initval, int flags); |
215 | #if EV_USE_INOTIFY |
278 | # ifdef __cplusplus |
216 | # include <sys/inotify.h> |
279 | } |
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280 | # endif |
217 | #endif |
281 | #endif |
218 | |
282 | |
219 | /**/ |
283 | /**/ |
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284 | |
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285 | /* |
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286 | * This is used to avoid floating point rounding problems. |
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287 | * It is added to ev_rt_now when scheduling periodics |
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288 | * to ensure progress, time-wise, even when rounding |
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289 | * errors are against us. |
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290 | * This value is good at least till the year 4000. |
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291 | * Better solutions welcome. |
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292 | */ |
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293 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
220 | |
294 | |
221 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
295 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
222 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
296 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
223 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds */ |
297 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
224 | |
298 | |
225 | #if __GNUC__ >= 3 |
299 | #if __GNUC__ >= 4 |
226 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
300 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
227 | # define inline_size static inline /* inline for codesize */ |
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228 | # if EV_MINIMAL |
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229 | # define noinline __attribute__ ((noinline)) |
301 | # define noinline __attribute__ ((noinline)) |
230 | # define inline_speed static noinline |
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231 | # else |
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232 | # define noinline |
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233 | # define inline_speed static inline |
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234 | # endif |
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235 | #else |
302 | #else |
236 | # define expect(expr,value) (expr) |
303 | # define expect(expr,value) (expr) |
237 | # define inline_speed static |
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238 | # define inline_size static |
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239 | # define noinline |
304 | # define noinline |
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305 | # if __STDC_VERSION__ < 199901L |
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306 | # define inline |
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307 | # endif |
240 | #endif |
308 | #endif |
241 | |
309 | |
242 | #define expect_false(expr) expect ((expr) != 0, 0) |
310 | #define expect_false(expr) expect ((expr) != 0, 0) |
243 | #define expect_true(expr) expect ((expr) != 0, 1) |
311 | #define expect_true(expr) expect ((expr) != 0, 1) |
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312 | #define inline_size static inline |
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313 | |
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314 | #if EV_MINIMAL |
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315 | # define inline_speed static noinline |
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316 | #else |
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317 | # define inline_speed static inline |
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318 | #endif |
244 | |
319 | |
245 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
320 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
246 | #define ABSPRI(w) ((w)->priority - EV_MINPRI) |
321 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
247 | |
322 | |
248 | #define EMPTY0 /* required for microsofts broken pseudo-c compiler */ |
323 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
249 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
324 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
250 | |
325 | |
251 | typedef ev_watcher *W; |
326 | typedef ev_watcher *W; |
252 | typedef ev_watcher_list *WL; |
327 | typedef ev_watcher_list *WL; |
253 | typedef ev_watcher_time *WT; |
328 | typedef ev_watcher_time *WT; |
254 | |
329 | |
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330 | #if EV_USE_MONOTONIC |
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331 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
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332 | /* giving it a reasonably high chance of working on typical architetcures */ |
255 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
333 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
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334 | #endif |
256 | |
335 | |
257 | #ifdef _WIN32 |
336 | #ifdef _WIN32 |
258 | # include "ev_win32.c" |
337 | # include "ev_win32.c" |
259 | #endif |
338 | #endif |
260 | |
339 | |
… | |
… | |
396 | { |
475 | { |
397 | return ev_rt_now; |
476 | return ev_rt_now; |
398 | } |
477 | } |
399 | #endif |
478 | #endif |
400 | |
479 | |
401 | #define array_roundsize(type,n) (((n) | 4) & ~3) |
480 | void |
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481 | ev_sleep (ev_tstamp delay) |
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482 | { |
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483 | if (delay > 0.) |
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484 | { |
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485 | #if EV_USE_NANOSLEEP |
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486 | struct timespec ts; |
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487 | |
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488 | ts.tv_sec = (time_t)delay; |
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489 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
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490 | |
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491 | nanosleep (&ts, 0); |
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492 | #elif defined(_WIN32) |
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493 | Sleep ((unsigned long)(delay * 1e3)); |
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494 | #else |
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495 | struct timeval tv; |
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496 | |
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497 | tv.tv_sec = (time_t)delay; |
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498 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
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499 | |
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500 | select (0, 0, 0, 0, &tv); |
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501 | #endif |
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502 | } |
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503 | } |
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504 | |
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505 | /*****************************************************************************/ |
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506 | |
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507 | int inline_size |
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508 | array_nextsize (int elem, int cur, int cnt) |
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509 | { |
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510 | int ncur = cur + 1; |
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511 | |
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512 | do |
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513 | ncur <<= 1; |
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514 | while (cnt > ncur); |
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515 | |
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516 | /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */ |
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517 | if (elem * ncur > 4096) |
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518 | { |
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519 | ncur *= elem; |
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520 | ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095; |
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521 | ncur = ncur - sizeof (void *) * 4; |
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522 | ncur /= elem; |
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523 | } |
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524 | |
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525 | return ncur; |
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526 | } |
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527 | |
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528 | static noinline void * |
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529 | array_realloc (int elem, void *base, int *cur, int cnt) |
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530 | { |
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531 | *cur = array_nextsize (elem, *cur, cnt); |
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532 | return ev_realloc (base, elem * *cur); |
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533 | } |
402 | |
534 | |
403 | #define array_needsize(type,base,cur,cnt,init) \ |
535 | #define array_needsize(type,base,cur,cnt,init) \ |
404 | if (expect_false ((cnt) > cur)) \ |
536 | if (expect_false ((cnt) > (cur))) \ |
405 | { \ |
537 | { \ |
406 | int newcnt = cur; \ |
538 | int ocur_ = (cur); \ |
407 | do \ |
539 | (base) = (type *)array_realloc \ |
408 | { \ |
540 | (sizeof (type), (base), &(cur), (cnt)); \ |
409 | newcnt = array_roundsize (type, newcnt << 1); \ |
541 | init ((base) + (ocur_), (cur) - ocur_); \ |
410 | } \ |
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411 | while ((cnt) > newcnt); \ |
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412 | \ |
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413 | base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\ |
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414 | init (base + cur, newcnt - cur); \ |
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415 | cur = newcnt; \ |
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416 | } |
542 | } |
417 | |
543 | |
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544 | #if 0 |
418 | #define array_slim(type,stem) \ |
545 | #define array_slim(type,stem) \ |
419 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
546 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
420 | { \ |
547 | { \ |
421 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
548 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
422 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
549 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
423 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
550 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
424 | } |
551 | } |
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552 | #endif |
425 | |
553 | |
426 | #define array_free(stem, idx) \ |
554 | #define array_free(stem, idx) \ |
427 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
555 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
428 | |
556 | |
429 | /*****************************************************************************/ |
557 | /*****************************************************************************/ |
430 | |
558 | |
431 | void noinline |
559 | void noinline |
432 | ev_feed_event (EV_P_ void *w, int revents) |
560 | ev_feed_event (EV_P_ void *w, int revents) |
433 | { |
561 | { |
434 | W w_ = (W)w; |
562 | W w_ = (W)w; |
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563 | int pri = ABSPRI (w_); |
435 | |
564 | |
436 | if (expect_false (w_->pending)) |
565 | if (expect_false (w_->pending)) |
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566 | pendings [pri][w_->pending - 1].events |= revents; |
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567 | else |
437 | { |
568 | { |
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569 | w_->pending = ++pendingcnt [pri]; |
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570 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
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571 | pendings [pri][w_->pending - 1].w = w_; |
438 | pendings [ABSPRI (w_)][w_->pending - 1].events |= revents; |
572 | pendings [pri][w_->pending - 1].events = revents; |
439 | return; |
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440 | } |
573 | } |
441 | |
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442 | w_->pending = ++pendingcnt [ABSPRI (w_)]; |
|
|
443 | array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2); |
|
|
444 | pendings [ABSPRI (w_)][w_->pending - 1].w = w_; |
|
|
445 | pendings [ABSPRI (w_)][w_->pending - 1].events = revents; |
|
|
446 | } |
574 | } |
447 | |
575 | |
448 | void inline_size |
576 | void inline_speed |
449 | queue_events (EV_P_ W *events, int eventcnt, int type) |
577 | queue_events (EV_P_ W *events, int eventcnt, int type) |
450 | { |
578 | { |
451 | int i; |
579 | int i; |
452 | |
580 | |
453 | for (i = 0; i < eventcnt; ++i) |
581 | for (i = 0; i < eventcnt; ++i) |
… | |
… | |
485 | } |
613 | } |
486 | |
614 | |
487 | void |
615 | void |
488 | ev_feed_fd_event (EV_P_ int fd, int revents) |
616 | ev_feed_fd_event (EV_P_ int fd, int revents) |
489 | { |
617 | { |
|
|
618 | if (fd >= 0 && fd < anfdmax) |
490 | fd_event (EV_A_ fd, revents); |
619 | fd_event (EV_A_ fd, revents); |
491 | } |
620 | } |
492 | |
621 | |
493 | void inline_size |
622 | void inline_size |
494 | fd_reify (EV_P) |
623 | fd_reify (EV_P) |
495 | { |
624 | { |
… | |
… | |
499 | { |
628 | { |
500 | int fd = fdchanges [i]; |
629 | int fd = fdchanges [i]; |
501 | ANFD *anfd = anfds + fd; |
630 | ANFD *anfd = anfds + fd; |
502 | ev_io *w; |
631 | ev_io *w; |
503 | |
632 | |
504 | int events = 0; |
633 | unsigned char events = 0; |
505 | |
634 | |
506 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
635 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
507 | events |= w->events; |
636 | events |= (unsigned char)w->events; |
508 | |
637 | |
509 | #if EV_SELECT_IS_WINSOCKET |
638 | #if EV_SELECT_IS_WINSOCKET |
510 | if (events) |
639 | if (events) |
511 | { |
640 | { |
512 | unsigned long argp; |
641 | unsigned long argp; |
|
|
642 | #ifdef EV_FD_TO_WIN32_HANDLE |
|
|
643 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
644 | #else |
513 | anfd->handle = _get_osfhandle (fd); |
645 | anfd->handle = _get_osfhandle (fd); |
|
|
646 | #endif |
514 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
647 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
515 | } |
648 | } |
516 | #endif |
649 | #endif |
517 | |
650 | |
|
|
651 | { |
|
|
652 | unsigned char o_events = anfd->events; |
|
|
653 | unsigned char o_reify = anfd->reify; |
|
|
654 | |
518 | anfd->reify = 0; |
655 | anfd->reify = 0; |
519 | |
|
|
520 | backend_modify (EV_A_ fd, anfd->events, events); |
|
|
521 | anfd->events = events; |
656 | anfd->events = events; |
|
|
657 | |
|
|
658 | if (o_events != events || o_reify & EV_IOFDSET) |
|
|
659 | backend_modify (EV_A_ fd, o_events, events); |
|
|
660 | } |
522 | } |
661 | } |
523 | |
662 | |
524 | fdchangecnt = 0; |
663 | fdchangecnt = 0; |
525 | } |
664 | } |
526 | |
665 | |
527 | void inline_size |
666 | void inline_size |
528 | fd_change (EV_P_ int fd) |
667 | fd_change (EV_P_ int fd, int flags) |
529 | { |
668 | { |
530 | if (expect_false (anfds [fd].reify)) |
669 | unsigned char reify = anfds [fd].reify; |
531 | return; |
|
|
532 | |
|
|
533 | anfds [fd].reify = 1; |
670 | anfds [fd].reify |= flags; |
534 | |
671 | |
|
|
672 | if (expect_true (!reify)) |
|
|
673 | { |
535 | ++fdchangecnt; |
674 | ++fdchangecnt; |
536 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
675 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
537 | fdchanges [fdchangecnt - 1] = fd; |
676 | fdchanges [fdchangecnt - 1] = fd; |
|
|
677 | } |
538 | } |
678 | } |
539 | |
679 | |
540 | void inline_speed |
680 | void inline_speed |
541 | fd_kill (EV_P_ int fd) |
681 | fd_kill (EV_P_ int fd) |
542 | { |
682 | { |
… | |
… | |
593 | |
733 | |
594 | for (fd = 0; fd < anfdmax; ++fd) |
734 | for (fd = 0; fd < anfdmax; ++fd) |
595 | if (anfds [fd].events) |
735 | if (anfds [fd].events) |
596 | { |
736 | { |
597 | anfds [fd].events = 0; |
737 | anfds [fd].events = 0; |
598 | fd_change (EV_A_ fd); |
738 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
599 | } |
739 | } |
600 | } |
740 | } |
601 | |
741 | |
602 | /*****************************************************************************/ |
742 | /*****************************************************************************/ |
603 | |
743 | |
604 | void inline_speed |
744 | void inline_speed |
605 | upheap (WT *heap, int k) |
745 | upheap (WT *heap, int k) |
606 | { |
746 | { |
607 | WT w = heap [k]; |
747 | WT w = heap [k]; |
608 | |
748 | |
609 | while (k && heap [k >> 1]->at > w->at) |
749 | while (k) |
610 | { |
750 | { |
|
|
751 | int p = (k - 1) >> 1; |
|
|
752 | |
|
|
753 | if (heap [p]->at <= w->at) |
|
|
754 | break; |
|
|
755 | |
611 | heap [k] = heap [k >> 1]; |
756 | heap [k] = heap [p]; |
612 | ((W)heap [k])->active = k + 1; |
757 | ((W)heap [k])->active = k + 1; |
613 | k >>= 1; |
758 | k = p; |
614 | } |
759 | } |
615 | |
760 | |
616 | heap [k] = w; |
761 | heap [k] = w; |
617 | ((W)heap [k])->active = k + 1; |
762 | ((W)heap [k])->active = k + 1; |
618 | |
|
|
619 | } |
763 | } |
620 | |
764 | |
621 | void inline_speed |
765 | void inline_speed |
622 | downheap (WT *heap, int N, int k) |
766 | downheap (WT *heap, int N, int k) |
623 | { |
767 | { |
624 | WT w = heap [k]; |
768 | WT w = heap [k]; |
625 | |
769 | |
626 | while (k < (N >> 1)) |
770 | for (;;) |
627 | { |
771 | { |
628 | int j = k << 1; |
772 | int c = (k << 1) + 1; |
629 | |
773 | |
630 | if (j + 1 < N && heap [j]->at > heap [j + 1]->at) |
774 | if (c >= N) |
631 | ++j; |
|
|
632 | |
|
|
633 | if (w->at <= heap [j]->at) |
|
|
634 | break; |
775 | break; |
635 | |
776 | |
|
|
777 | c += c + 1 < N && heap [c]->at > heap [c + 1]->at |
|
|
778 | ? 1 : 0; |
|
|
779 | |
|
|
780 | if (w->at <= heap [c]->at) |
|
|
781 | break; |
|
|
782 | |
636 | heap [k] = heap [j]; |
783 | heap [k] = heap [c]; |
637 | ((W)heap [k])->active = k + 1; |
784 | ((W)heap [k])->active = k + 1; |
|
|
785 | |
638 | k = j; |
786 | k = c; |
639 | } |
787 | } |
640 | |
788 | |
641 | heap [k] = w; |
789 | heap [k] = w; |
642 | ((W)heap [k])->active = k + 1; |
790 | ((W)heap [k])->active = k + 1; |
643 | } |
791 | } |
… | |
… | |
652 | /*****************************************************************************/ |
800 | /*****************************************************************************/ |
653 | |
801 | |
654 | typedef struct |
802 | typedef struct |
655 | { |
803 | { |
656 | WL head; |
804 | WL head; |
657 | sig_atomic_t volatile gotsig; |
805 | EV_ATOMIC_T gotsig; |
658 | } ANSIG; |
806 | } ANSIG; |
659 | |
807 | |
660 | static ANSIG *signals; |
808 | static ANSIG *signals; |
661 | static int signalmax; |
809 | static int signalmax; |
662 | |
810 | |
663 | static int sigpipe [2]; |
811 | static EV_ATOMIC_T gotsig; |
664 | static sig_atomic_t volatile gotsig; |
|
|
665 | static ev_io sigev; |
|
|
666 | |
812 | |
667 | void inline_size |
813 | void inline_size |
668 | signals_init (ANSIG *base, int count) |
814 | signals_init (ANSIG *base, int count) |
669 | { |
815 | { |
670 | while (count--) |
816 | while (count--) |
… | |
… | |
674 | |
820 | |
675 | ++base; |
821 | ++base; |
676 | } |
822 | } |
677 | } |
823 | } |
678 | |
824 | |
679 | static void |
825 | /*****************************************************************************/ |
680 | sighandler (int signum) |
|
|
681 | { |
|
|
682 | #if _WIN32 |
|
|
683 | signal (signum, sighandler); |
|
|
684 | #endif |
|
|
685 | |
826 | |
686 | signals [signum - 1].gotsig = 1; |
|
|
687 | |
|
|
688 | if (!gotsig) |
|
|
689 | { |
|
|
690 | int old_errno = errno; |
|
|
691 | gotsig = 1; |
|
|
692 | write (sigpipe [1], &signum, 1); |
|
|
693 | errno = old_errno; |
|
|
694 | } |
|
|
695 | } |
|
|
696 | |
|
|
697 | void noinline |
|
|
698 | ev_feed_signal_event (EV_P_ int signum) |
|
|
699 | { |
|
|
700 | WL w; |
|
|
701 | |
|
|
702 | #if EV_MULTIPLICITY |
|
|
703 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
704 | #endif |
|
|
705 | |
|
|
706 | --signum; |
|
|
707 | |
|
|
708 | if (signum < 0 || signum >= signalmax) |
|
|
709 | return; |
|
|
710 | |
|
|
711 | signals [signum].gotsig = 0; |
|
|
712 | |
|
|
713 | for (w = signals [signum].head; w; w = w->next) |
|
|
714 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
715 | } |
|
|
716 | |
|
|
717 | static void |
|
|
718 | sigcb (EV_P_ ev_io *iow, int revents) |
|
|
719 | { |
|
|
720 | int signum; |
|
|
721 | |
|
|
722 | read (sigpipe [0], &revents, 1); |
|
|
723 | gotsig = 0; |
|
|
724 | |
|
|
725 | for (signum = signalmax; signum--; ) |
|
|
726 | if (signals [signum].gotsig) |
|
|
727 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
728 | } |
|
|
729 | |
|
|
730 | void inline_size |
827 | void inline_speed |
731 | fd_intern (int fd) |
828 | fd_intern (int fd) |
732 | { |
829 | { |
733 | #ifdef _WIN32 |
830 | #ifdef _WIN32 |
734 | int arg = 1; |
831 | int arg = 1; |
735 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
832 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
… | |
… | |
738 | fcntl (fd, F_SETFL, O_NONBLOCK); |
835 | fcntl (fd, F_SETFL, O_NONBLOCK); |
739 | #endif |
836 | #endif |
740 | } |
837 | } |
741 | |
838 | |
742 | static void noinline |
839 | static void noinline |
743 | siginit (EV_P) |
840 | evpipe_init (EV_P) |
744 | { |
841 | { |
|
|
842 | if (!ev_is_active (&pipeev)) |
|
|
843 | { |
|
|
844 | #if EV_USE_EVENTFD |
|
|
845 | if ((evfd = eventfd (0, 0)) >= 0) |
|
|
846 | { |
|
|
847 | evpipe [0] = -1; |
|
|
848 | fd_intern (evfd); |
|
|
849 | ev_io_set (&pipeev, evfd, EV_READ); |
|
|
850 | } |
|
|
851 | else |
|
|
852 | #endif |
|
|
853 | { |
|
|
854 | while (pipe (evpipe)) |
|
|
855 | syserr ("(libev) error creating signal/async pipe"); |
|
|
856 | |
745 | fd_intern (sigpipe [0]); |
857 | fd_intern (evpipe [0]); |
746 | fd_intern (sigpipe [1]); |
858 | fd_intern (evpipe [1]); |
|
|
859 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
|
|
860 | } |
747 | |
861 | |
748 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
|
|
749 | ev_io_start (EV_A_ &sigev); |
862 | ev_io_start (EV_A_ &pipeev); |
750 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
863 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
864 | } |
|
|
865 | } |
|
|
866 | |
|
|
867 | void inline_size |
|
|
868 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
869 | { |
|
|
870 | if (!*flag) |
|
|
871 | { |
|
|
872 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
873 | |
|
|
874 | *flag = 1; |
|
|
875 | |
|
|
876 | #if EV_USE_EVENTFD |
|
|
877 | if (evfd >= 0) |
|
|
878 | { |
|
|
879 | uint64_t counter = 1; |
|
|
880 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
881 | } |
|
|
882 | else |
|
|
883 | #endif |
|
|
884 | write (evpipe [1], &old_errno, 1); |
|
|
885 | |
|
|
886 | errno = old_errno; |
|
|
887 | } |
|
|
888 | } |
|
|
889 | |
|
|
890 | static void |
|
|
891 | pipecb (EV_P_ ev_io *iow, int revents) |
|
|
892 | { |
|
|
893 | #if EV_USE_EVENTFD |
|
|
894 | if (evfd >= 0) |
|
|
895 | { |
|
|
896 | uint64_t counter = 1; |
|
|
897 | read (evfd, &counter, sizeof (uint64_t)); |
|
|
898 | } |
|
|
899 | else |
|
|
900 | #endif |
|
|
901 | { |
|
|
902 | char dummy; |
|
|
903 | read (evpipe [0], &dummy, 1); |
|
|
904 | } |
|
|
905 | |
|
|
906 | if (gotsig && ev_is_default_loop (EV_A)) |
|
|
907 | { |
|
|
908 | int signum; |
|
|
909 | gotsig = 0; |
|
|
910 | |
|
|
911 | for (signum = signalmax; signum--; ) |
|
|
912 | if (signals [signum].gotsig) |
|
|
913 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
914 | } |
|
|
915 | |
|
|
916 | #if EV_ASYNC_ENABLE |
|
|
917 | if (gotasync) |
|
|
918 | { |
|
|
919 | int i; |
|
|
920 | gotasync = 0; |
|
|
921 | |
|
|
922 | for (i = asynccnt; i--; ) |
|
|
923 | if (asyncs [i]->sent) |
|
|
924 | { |
|
|
925 | asyncs [i]->sent = 0; |
|
|
926 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
|
|
927 | } |
|
|
928 | } |
|
|
929 | #endif |
751 | } |
930 | } |
752 | |
931 | |
753 | /*****************************************************************************/ |
932 | /*****************************************************************************/ |
754 | |
933 | |
|
|
934 | static void |
|
|
935 | ev_sighandler (int signum) |
|
|
936 | { |
|
|
937 | #if EV_MULTIPLICITY |
|
|
938 | struct ev_loop *loop = &default_loop_struct; |
|
|
939 | #endif |
|
|
940 | |
|
|
941 | #if _WIN32 |
|
|
942 | signal (signum, ev_sighandler); |
|
|
943 | #endif |
|
|
944 | |
|
|
945 | signals [signum - 1].gotsig = 1; |
|
|
946 | evpipe_write (EV_A_ &gotsig); |
|
|
947 | } |
|
|
948 | |
|
|
949 | void noinline |
|
|
950 | ev_feed_signal_event (EV_P_ int signum) |
|
|
951 | { |
|
|
952 | WL w; |
|
|
953 | |
|
|
954 | #if EV_MULTIPLICITY |
|
|
955 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
956 | #endif |
|
|
957 | |
|
|
958 | --signum; |
|
|
959 | |
|
|
960 | if (signum < 0 || signum >= signalmax) |
|
|
961 | return; |
|
|
962 | |
|
|
963 | signals [signum].gotsig = 0; |
|
|
964 | |
|
|
965 | for (w = signals [signum].head; w; w = w->next) |
|
|
966 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
967 | } |
|
|
968 | |
|
|
969 | /*****************************************************************************/ |
|
|
970 | |
755 | static ev_child *childs [EV_PID_HASHSIZE]; |
971 | static WL childs [EV_PID_HASHSIZE]; |
756 | |
972 | |
757 | #ifndef _WIN32 |
973 | #ifndef _WIN32 |
758 | |
974 | |
759 | static ev_signal childev; |
975 | static ev_signal childev; |
760 | |
976 | |
|
|
977 | #ifndef WIFCONTINUED |
|
|
978 | # define WIFCONTINUED(status) 0 |
|
|
979 | #endif |
|
|
980 | |
761 | void inline_speed |
981 | void inline_speed |
762 | child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) |
982 | child_reap (EV_P_ int chain, int pid, int status) |
763 | { |
983 | { |
764 | ev_child *w; |
984 | ev_child *w; |
|
|
985 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
765 | |
986 | |
766 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
987 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
988 | { |
767 | if (w->pid == pid || !w->pid) |
989 | if ((w->pid == pid || !w->pid) |
|
|
990 | && (!traced || (w->flags & 1))) |
768 | { |
991 | { |
769 | ev_priority (w) = ev_priority (sw); /* need to do it *now* */ |
992 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
770 | w->rpid = pid; |
993 | w->rpid = pid; |
771 | w->rstatus = status; |
994 | w->rstatus = status; |
772 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
995 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
773 | } |
996 | } |
|
|
997 | } |
774 | } |
998 | } |
775 | |
999 | |
776 | #ifndef WCONTINUED |
1000 | #ifndef WCONTINUED |
777 | # define WCONTINUED 0 |
1001 | # define WCONTINUED 0 |
778 | #endif |
1002 | #endif |
… | |
… | |
787 | if (!WCONTINUED |
1011 | if (!WCONTINUED |
788 | || errno != EINVAL |
1012 | || errno != EINVAL |
789 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
1013 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
790 | return; |
1014 | return; |
791 | |
1015 | |
792 | /* make sure we are called again until all childs have been reaped */ |
1016 | /* make sure we are called again until all children have been reaped */ |
793 | /* we need to do it this way so that the callback gets called before we continue */ |
1017 | /* we need to do it this way so that the callback gets called before we continue */ |
794 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1018 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
795 | |
1019 | |
796 | child_reap (EV_A_ sw, pid, pid, status); |
1020 | child_reap (EV_A_ pid, pid, status); |
797 | if (EV_PID_HASHSIZE > 1) |
1021 | if (EV_PID_HASHSIZE > 1) |
798 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1022 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
799 | } |
1023 | } |
800 | |
1024 | |
801 | #endif |
1025 | #endif |
802 | |
1026 | |
803 | /*****************************************************************************/ |
1027 | /*****************************************************************************/ |
… | |
… | |
875 | } |
1099 | } |
876 | |
1100 | |
877 | unsigned int |
1101 | unsigned int |
878 | ev_embeddable_backends (void) |
1102 | ev_embeddable_backends (void) |
879 | { |
1103 | { |
880 | return EVBACKEND_EPOLL |
1104 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
881 | | EVBACKEND_KQUEUE |
1105 | |
882 | | EVBACKEND_PORT; |
1106 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
|
|
1107 | /* please fix it and tell me how to detect the fix */ |
|
|
1108 | flags &= ~EVBACKEND_EPOLL; |
|
|
1109 | |
|
|
1110 | return flags; |
883 | } |
1111 | } |
884 | |
1112 | |
885 | unsigned int |
1113 | unsigned int |
886 | ev_backend (EV_P) |
1114 | ev_backend (EV_P) |
887 | { |
1115 | { |
888 | return backend; |
1116 | return backend; |
|
|
1117 | } |
|
|
1118 | |
|
|
1119 | unsigned int |
|
|
1120 | ev_loop_count (EV_P) |
|
|
1121 | { |
|
|
1122 | return loop_count; |
|
|
1123 | } |
|
|
1124 | |
|
|
1125 | void |
|
|
1126 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1127 | { |
|
|
1128 | io_blocktime = interval; |
|
|
1129 | } |
|
|
1130 | |
|
|
1131 | void |
|
|
1132 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1133 | { |
|
|
1134 | timeout_blocktime = interval; |
889 | } |
1135 | } |
890 | |
1136 | |
891 | static void noinline |
1137 | static void noinline |
892 | loop_init (EV_P_ unsigned int flags) |
1138 | loop_init (EV_P_ unsigned int flags) |
893 | { |
1139 | { |
… | |
… | |
899 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1145 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
900 | have_monotonic = 1; |
1146 | have_monotonic = 1; |
901 | } |
1147 | } |
902 | #endif |
1148 | #endif |
903 | |
1149 | |
904 | ev_rt_now = ev_time (); |
1150 | ev_rt_now = ev_time (); |
905 | mn_now = get_clock (); |
1151 | mn_now = get_clock (); |
906 | now_floor = mn_now; |
1152 | now_floor = mn_now; |
907 | rtmn_diff = ev_rt_now - mn_now; |
1153 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1154 | |
|
|
1155 | io_blocktime = 0.; |
|
|
1156 | timeout_blocktime = 0.; |
|
|
1157 | backend = 0; |
|
|
1158 | backend_fd = -1; |
|
|
1159 | gotasync = 0; |
|
|
1160 | #if EV_USE_INOTIFY |
|
|
1161 | fs_fd = -2; |
|
|
1162 | #endif |
908 | |
1163 | |
909 | /* pid check not overridable via env */ |
1164 | /* pid check not overridable via env */ |
910 | #ifndef _WIN32 |
1165 | #ifndef _WIN32 |
911 | if (flags & EVFLAG_FORKCHECK) |
1166 | if (flags & EVFLAG_FORKCHECK) |
912 | curpid = getpid (); |
1167 | curpid = getpid (); |
… | |
… | |
918 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1173 | flags = atoi (getenv ("LIBEV_FLAGS")); |
919 | |
1174 | |
920 | if (!(flags & 0x0000ffffUL)) |
1175 | if (!(flags & 0x0000ffffUL)) |
921 | flags |= ev_recommended_backends (); |
1176 | flags |= ev_recommended_backends (); |
922 | |
1177 | |
923 | backend = 0; |
|
|
924 | backend_fd = -1; |
|
|
925 | #if EV_USE_INOTIFY |
|
|
926 | fs_fd = -2; |
|
|
927 | #endif |
|
|
928 | |
|
|
929 | #if EV_USE_PORT |
1178 | #if EV_USE_PORT |
930 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1179 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
931 | #endif |
1180 | #endif |
932 | #if EV_USE_KQUEUE |
1181 | #if EV_USE_KQUEUE |
933 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
1182 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
… | |
… | |
940 | #endif |
1189 | #endif |
941 | #if EV_USE_SELECT |
1190 | #if EV_USE_SELECT |
942 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1191 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
943 | #endif |
1192 | #endif |
944 | |
1193 | |
945 | ev_init (&sigev, sigcb); |
1194 | ev_init (&pipeev, pipecb); |
946 | ev_set_priority (&sigev, EV_MAXPRI); |
1195 | ev_set_priority (&pipeev, EV_MAXPRI); |
947 | } |
1196 | } |
948 | } |
1197 | } |
949 | |
1198 | |
950 | static void noinline |
1199 | static void noinline |
951 | loop_destroy (EV_P) |
1200 | loop_destroy (EV_P) |
952 | { |
1201 | { |
953 | int i; |
1202 | int i; |
|
|
1203 | |
|
|
1204 | if (ev_is_active (&pipeev)) |
|
|
1205 | { |
|
|
1206 | ev_ref (EV_A); /* signal watcher */ |
|
|
1207 | ev_io_stop (EV_A_ &pipeev); |
|
|
1208 | |
|
|
1209 | #if EV_USE_EVENTFD |
|
|
1210 | if (evfd >= 0) |
|
|
1211 | close (evfd); |
|
|
1212 | #endif |
|
|
1213 | |
|
|
1214 | if (evpipe [0] >= 0) |
|
|
1215 | { |
|
|
1216 | close (evpipe [0]); |
|
|
1217 | close (evpipe [1]); |
|
|
1218 | } |
|
|
1219 | } |
954 | |
1220 | |
955 | #if EV_USE_INOTIFY |
1221 | #if EV_USE_INOTIFY |
956 | if (fs_fd >= 0) |
1222 | if (fs_fd >= 0) |
957 | close (fs_fd); |
1223 | close (fs_fd); |
958 | #endif |
1224 | #endif |
… | |
… | |
975 | #if EV_USE_SELECT |
1241 | #if EV_USE_SELECT |
976 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
1242 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
977 | #endif |
1243 | #endif |
978 | |
1244 | |
979 | for (i = NUMPRI; i--; ) |
1245 | for (i = NUMPRI; i--; ) |
|
|
1246 | { |
980 | array_free (pending, [i]); |
1247 | array_free (pending, [i]); |
|
|
1248 | #if EV_IDLE_ENABLE |
|
|
1249 | array_free (idle, [i]); |
|
|
1250 | #endif |
|
|
1251 | } |
|
|
1252 | |
|
|
1253 | ev_free (anfds); anfdmax = 0; |
981 | |
1254 | |
982 | /* have to use the microsoft-never-gets-it-right macro */ |
1255 | /* have to use the microsoft-never-gets-it-right macro */ |
983 | array_free (fdchange, EMPTY0); |
1256 | array_free (fdchange, EMPTY); |
984 | array_free (timer, EMPTY0); |
1257 | array_free (timer, EMPTY); |
985 | #if EV_PERIODIC_ENABLE |
1258 | #if EV_PERIODIC_ENABLE |
986 | array_free (periodic, EMPTY0); |
1259 | array_free (periodic, EMPTY); |
987 | #endif |
1260 | #endif |
|
|
1261 | #if EV_FORK_ENABLE |
988 | array_free (idle, EMPTY0); |
1262 | array_free (fork, EMPTY); |
|
|
1263 | #endif |
989 | array_free (prepare, EMPTY0); |
1264 | array_free (prepare, EMPTY); |
990 | array_free (check, EMPTY0); |
1265 | array_free (check, EMPTY); |
|
|
1266 | #if EV_ASYNC_ENABLE |
|
|
1267 | array_free (async, EMPTY); |
|
|
1268 | #endif |
991 | |
1269 | |
992 | backend = 0; |
1270 | backend = 0; |
993 | } |
1271 | } |
994 | |
1272 | |
995 | void inline_size infy_fork (EV_P); |
1273 | void inline_size infy_fork (EV_P); |
… | |
… | |
1008 | #endif |
1286 | #endif |
1009 | #if EV_USE_INOTIFY |
1287 | #if EV_USE_INOTIFY |
1010 | infy_fork (EV_A); |
1288 | infy_fork (EV_A); |
1011 | #endif |
1289 | #endif |
1012 | |
1290 | |
1013 | if (ev_is_active (&sigev)) |
1291 | if (ev_is_active (&pipeev)) |
1014 | { |
1292 | { |
1015 | /* default loop */ |
1293 | /* this "locks" the handlers against writing to the pipe */ |
|
|
1294 | /* while we modify the fd vars */ |
|
|
1295 | gotsig = 1; |
|
|
1296 | #if EV_ASYNC_ENABLE |
|
|
1297 | gotasync = 1; |
|
|
1298 | #endif |
1016 | |
1299 | |
1017 | ev_ref (EV_A); |
1300 | ev_ref (EV_A); |
1018 | ev_io_stop (EV_A_ &sigev); |
1301 | ev_io_stop (EV_A_ &pipeev); |
|
|
1302 | |
|
|
1303 | #if EV_USE_EVENTFD |
|
|
1304 | if (evfd >= 0) |
|
|
1305 | close (evfd); |
|
|
1306 | #endif |
|
|
1307 | |
|
|
1308 | if (evpipe [0] >= 0) |
|
|
1309 | { |
1019 | close (sigpipe [0]); |
1310 | close (evpipe [0]); |
1020 | close (sigpipe [1]); |
1311 | close (evpipe [1]); |
|
|
1312 | } |
1021 | |
1313 | |
1022 | while (pipe (sigpipe)) |
|
|
1023 | syserr ("(libev) error creating pipe"); |
|
|
1024 | |
|
|
1025 | siginit (EV_A); |
1314 | evpipe_init (EV_A); |
|
|
1315 | /* now iterate over everything, in case we missed something */ |
|
|
1316 | pipecb (EV_A_ &pipeev, EV_READ); |
1026 | } |
1317 | } |
1027 | |
1318 | |
1028 | postfork = 0; |
1319 | postfork = 0; |
1029 | } |
1320 | } |
1030 | |
1321 | |
… | |
… | |
1052 | } |
1343 | } |
1053 | |
1344 | |
1054 | void |
1345 | void |
1055 | ev_loop_fork (EV_P) |
1346 | ev_loop_fork (EV_P) |
1056 | { |
1347 | { |
1057 | postfork = 1; |
1348 | postfork = 1; /* must be in line with ev_default_fork */ |
1058 | } |
1349 | } |
1059 | |
1350 | |
1060 | #endif |
1351 | #endif |
1061 | |
1352 | |
1062 | #if EV_MULTIPLICITY |
1353 | #if EV_MULTIPLICITY |
… | |
… | |
1065 | #else |
1356 | #else |
1066 | int |
1357 | int |
1067 | ev_default_loop (unsigned int flags) |
1358 | ev_default_loop (unsigned int flags) |
1068 | #endif |
1359 | #endif |
1069 | { |
1360 | { |
1070 | if (sigpipe [0] == sigpipe [1]) |
|
|
1071 | if (pipe (sigpipe)) |
|
|
1072 | return 0; |
|
|
1073 | |
|
|
1074 | if (!ev_default_loop_ptr) |
1361 | if (!ev_default_loop_ptr) |
1075 | { |
1362 | { |
1076 | #if EV_MULTIPLICITY |
1363 | #if EV_MULTIPLICITY |
1077 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1364 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1078 | #else |
1365 | #else |
… | |
… | |
1081 | |
1368 | |
1082 | loop_init (EV_A_ flags); |
1369 | loop_init (EV_A_ flags); |
1083 | |
1370 | |
1084 | if (ev_backend (EV_A)) |
1371 | if (ev_backend (EV_A)) |
1085 | { |
1372 | { |
1086 | siginit (EV_A); |
|
|
1087 | |
|
|
1088 | #ifndef _WIN32 |
1373 | #ifndef _WIN32 |
1089 | ev_signal_init (&childev, childcb, SIGCHLD); |
1374 | ev_signal_init (&childev, childcb, SIGCHLD); |
1090 | ev_set_priority (&childev, EV_MAXPRI); |
1375 | ev_set_priority (&childev, EV_MAXPRI); |
1091 | ev_signal_start (EV_A_ &childev); |
1376 | ev_signal_start (EV_A_ &childev); |
1092 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1377 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
… | |
… | |
1109 | #ifndef _WIN32 |
1394 | #ifndef _WIN32 |
1110 | ev_ref (EV_A); /* child watcher */ |
1395 | ev_ref (EV_A); /* child watcher */ |
1111 | ev_signal_stop (EV_A_ &childev); |
1396 | ev_signal_stop (EV_A_ &childev); |
1112 | #endif |
1397 | #endif |
1113 | |
1398 | |
1114 | ev_ref (EV_A); /* signal watcher */ |
|
|
1115 | ev_io_stop (EV_A_ &sigev); |
|
|
1116 | |
|
|
1117 | close (sigpipe [0]); sigpipe [0] = 0; |
|
|
1118 | close (sigpipe [1]); sigpipe [1] = 0; |
|
|
1119 | |
|
|
1120 | loop_destroy (EV_A); |
1399 | loop_destroy (EV_A); |
1121 | } |
1400 | } |
1122 | |
1401 | |
1123 | void |
1402 | void |
1124 | ev_default_fork (void) |
1403 | ev_default_fork (void) |
… | |
… | |
1126 | #if EV_MULTIPLICITY |
1405 | #if EV_MULTIPLICITY |
1127 | struct ev_loop *loop = ev_default_loop_ptr; |
1406 | struct ev_loop *loop = ev_default_loop_ptr; |
1128 | #endif |
1407 | #endif |
1129 | |
1408 | |
1130 | if (backend) |
1409 | if (backend) |
1131 | postfork = 1; |
1410 | postfork = 1; /* must be in line with ev_loop_fork */ |
1132 | } |
1411 | } |
1133 | |
1412 | |
1134 | /*****************************************************************************/ |
1413 | /*****************************************************************************/ |
1135 | |
1414 | |
1136 | int inline_size |
1415 | void |
1137 | any_pending (EV_P) |
1416 | ev_invoke (EV_P_ void *w, int revents) |
1138 | { |
1417 | { |
1139 | int pri; |
1418 | EV_CB_INVOKE ((W)w, revents); |
1140 | |
|
|
1141 | for (pri = NUMPRI; pri--; ) |
|
|
1142 | if (pendingcnt [pri]) |
|
|
1143 | return 1; |
|
|
1144 | |
|
|
1145 | return 0; |
|
|
1146 | } |
1419 | } |
1147 | |
1420 | |
1148 | void inline_speed |
1421 | void inline_speed |
1149 | call_pending (EV_P) |
1422 | call_pending (EV_P) |
1150 | { |
1423 | { |
… | |
… | |
1168 | void inline_size |
1441 | void inline_size |
1169 | timers_reify (EV_P) |
1442 | timers_reify (EV_P) |
1170 | { |
1443 | { |
1171 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
1444 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
1172 | { |
1445 | { |
1173 | ev_timer *w = timers [0]; |
1446 | ev_timer *w = (ev_timer *)timers [0]; |
1174 | |
1447 | |
1175 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
1448 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
1176 | |
1449 | |
1177 | /* first reschedule or stop timer */ |
1450 | /* first reschedule or stop timer */ |
1178 | if (w->repeat) |
1451 | if (w->repeat) |
… | |
… | |
1181 | |
1454 | |
1182 | ((WT)w)->at += w->repeat; |
1455 | ((WT)w)->at += w->repeat; |
1183 | if (((WT)w)->at < mn_now) |
1456 | if (((WT)w)->at < mn_now) |
1184 | ((WT)w)->at = mn_now; |
1457 | ((WT)w)->at = mn_now; |
1185 | |
1458 | |
1186 | downheap ((WT *)timers, timercnt, 0); |
1459 | downheap (timers, timercnt, 0); |
1187 | } |
1460 | } |
1188 | else |
1461 | else |
1189 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1462 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1190 | |
1463 | |
1191 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
1464 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
… | |
… | |
1196 | void inline_size |
1469 | void inline_size |
1197 | periodics_reify (EV_P) |
1470 | periodics_reify (EV_P) |
1198 | { |
1471 | { |
1199 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
1472 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
1200 | { |
1473 | { |
1201 | ev_periodic *w = periodics [0]; |
1474 | ev_periodic *w = (ev_periodic *)periodics [0]; |
1202 | |
1475 | |
1203 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
1476 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
1204 | |
1477 | |
1205 | /* first reschedule or stop timer */ |
1478 | /* first reschedule or stop timer */ |
1206 | if (w->reschedule_cb) |
1479 | if (w->reschedule_cb) |
1207 | { |
1480 | { |
1208 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); |
1481 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); |
1209 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
1482 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
1210 | downheap ((WT *)periodics, periodiccnt, 0); |
1483 | downheap (periodics, periodiccnt, 0); |
1211 | } |
1484 | } |
1212 | else if (w->interval) |
1485 | else if (w->interval) |
1213 | { |
1486 | { |
1214 | ((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
1487 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1488 | if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval; |
1215 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
1489 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
1216 | downheap ((WT *)periodics, periodiccnt, 0); |
1490 | downheap (periodics, periodiccnt, 0); |
1217 | } |
1491 | } |
1218 | else |
1492 | else |
1219 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1493 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1220 | |
1494 | |
1221 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
1495 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
… | |
… | |
1228 | int i; |
1502 | int i; |
1229 | |
1503 | |
1230 | /* adjust periodics after time jump */ |
1504 | /* adjust periodics after time jump */ |
1231 | for (i = 0; i < periodiccnt; ++i) |
1505 | for (i = 0; i < periodiccnt; ++i) |
1232 | { |
1506 | { |
1233 | ev_periodic *w = periodics [i]; |
1507 | ev_periodic *w = (ev_periodic *)periodics [i]; |
1234 | |
1508 | |
1235 | if (w->reschedule_cb) |
1509 | if (w->reschedule_cb) |
1236 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1510 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1237 | else if (w->interval) |
1511 | else if (w->interval) |
1238 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1512 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1239 | } |
1513 | } |
1240 | |
1514 | |
1241 | /* now rebuild the heap */ |
1515 | /* now rebuild the heap */ |
1242 | for (i = periodiccnt >> 1; i--; ) |
1516 | for (i = periodiccnt >> 1; i--; ) |
1243 | downheap ((WT *)periodics, periodiccnt, i); |
1517 | downheap (periodics, periodiccnt, i); |
1244 | } |
1518 | } |
1245 | #endif |
1519 | #endif |
1246 | |
1520 | |
|
|
1521 | #if EV_IDLE_ENABLE |
1247 | int inline_size |
1522 | void inline_size |
1248 | time_update_monotonic (EV_P) |
1523 | idle_reify (EV_P) |
1249 | { |
1524 | { |
|
|
1525 | if (expect_false (idleall)) |
|
|
1526 | { |
|
|
1527 | int pri; |
|
|
1528 | |
|
|
1529 | for (pri = NUMPRI; pri--; ) |
|
|
1530 | { |
|
|
1531 | if (pendingcnt [pri]) |
|
|
1532 | break; |
|
|
1533 | |
|
|
1534 | if (idlecnt [pri]) |
|
|
1535 | { |
|
|
1536 | queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE); |
|
|
1537 | break; |
|
|
1538 | } |
|
|
1539 | } |
|
|
1540 | } |
|
|
1541 | } |
|
|
1542 | #endif |
|
|
1543 | |
|
|
1544 | void inline_speed |
|
|
1545 | time_update (EV_P_ ev_tstamp max_block) |
|
|
1546 | { |
|
|
1547 | int i; |
|
|
1548 | |
|
|
1549 | #if EV_USE_MONOTONIC |
|
|
1550 | if (expect_true (have_monotonic)) |
|
|
1551 | { |
|
|
1552 | ev_tstamp odiff = rtmn_diff; |
|
|
1553 | |
1250 | mn_now = get_clock (); |
1554 | mn_now = get_clock (); |
1251 | |
1555 | |
|
|
1556 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
|
|
1557 | /* interpolate in the meantime */ |
1252 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1558 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1253 | { |
1559 | { |
1254 | ev_rt_now = rtmn_diff + mn_now; |
1560 | ev_rt_now = rtmn_diff + mn_now; |
1255 | return 0; |
1561 | return; |
1256 | } |
1562 | } |
1257 | else |
1563 | |
1258 | { |
|
|
1259 | now_floor = mn_now; |
1564 | now_floor = mn_now; |
1260 | ev_rt_now = ev_time (); |
1565 | ev_rt_now = ev_time (); |
1261 | return 1; |
|
|
1262 | } |
|
|
1263 | } |
|
|
1264 | |
1566 | |
1265 | void inline_size |
1567 | /* loop a few times, before making important decisions. |
1266 | time_update (EV_P) |
1568 | * on the choice of "4": one iteration isn't enough, |
1267 | { |
1569 | * in case we get preempted during the calls to |
1268 | int i; |
1570 | * ev_time and get_clock. a second call is almost guaranteed |
1269 | |
1571 | * to succeed in that case, though. and looping a few more times |
1270 | #if EV_USE_MONOTONIC |
1572 | * doesn't hurt either as we only do this on time-jumps or |
1271 | if (expect_true (have_monotonic)) |
1573 | * in the unlikely event of having been preempted here. |
1272 | { |
1574 | */ |
1273 | if (time_update_monotonic (EV_A)) |
1575 | for (i = 4; --i; ) |
1274 | { |
1576 | { |
1275 | ev_tstamp odiff = rtmn_diff; |
|
|
1276 | |
|
|
1277 | /* loop a few times, before making important decisions. |
|
|
1278 | * on the choice of "4": one iteration isn't enough, |
|
|
1279 | * in case we get preempted during the calls to |
|
|
1280 | * ev_time and get_clock. a second call is almost guaranteed |
|
|
1281 | * to succeed in that case, though. and looping a few more times |
|
|
1282 | * doesn't hurt either as we only do this on time-jumps or |
|
|
1283 | * in the unlikely event of having been preempted here. |
|
|
1284 | */ |
|
|
1285 | for (i = 4; --i; ) |
|
|
1286 | { |
|
|
1287 | rtmn_diff = ev_rt_now - mn_now; |
1577 | rtmn_diff = ev_rt_now - mn_now; |
1288 | |
1578 | |
1289 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1579 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1290 | return; /* all is well */ |
1580 | return; /* all is well */ |
1291 | |
1581 | |
1292 | ev_rt_now = ev_time (); |
1582 | ev_rt_now = ev_time (); |
1293 | mn_now = get_clock (); |
1583 | mn_now = get_clock (); |
1294 | now_floor = mn_now; |
1584 | now_floor = mn_now; |
1295 | } |
1585 | } |
1296 | |
1586 | |
1297 | # if EV_PERIODIC_ENABLE |
1587 | # if EV_PERIODIC_ENABLE |
1298 | periodics_reschedule (EV_A); |
1588 | periodics_reschedule (EV_A); |
1299 | # endif |
1589 | # endif |
1300 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
1590 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
1301 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1591 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1302 | } |
|
|
1303 | } |
1592 | } |
1304 | else |
1593 | else |
1305 | #endif |
1594 | #endif |
1306 | { |
1595 | { |
1307 | ev_rt_now = ev_time (); |
1596 | ev_rt_now = ev_time (); |
1308 | |
1597 | |
1309 | if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
1598 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
1310 | { |
1599 | { |
1311 | #if EV_PERIODIC_ENABLE |
1600 | #if EV_PERIODIC_ENABLE |
1312 | periodics_reschedule (EV_A); |
1601 | periodics_reschedule (EV_A); |
1313 | #endif |
1602 | #endif |
1314 | |
|
|
1315 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
1603 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
1316 | for (i = 0; i < timercnt; ++i) |
1604 | for (i = 0; i < timercnt; ++i) |
1317 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
1605 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
1318 | } |
1606 | } |
1319 | |
1607 | |
… | |
… | |
1336 | static int loop_done; |
1624 | static int loop_done; |
1337 | |
1625 | |
1338 | void |
1626 | void |
1339 | ev_loop (EV_P_ int flags) |
1627 | ev_loop (EV_P_ int flags) |
1340 | { |
1628 | { |
1341 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) |
1629 | loop_done = EVUNLOOP_CANCEL; |
1342 | ? EVUNLOOP_ONE |
|
|
1343 | : EVUNLOOP_CANCEL; |
|
|
1344 | |
1630 | |
1345 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
1631 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
1346 | |
1632 | |
1347 | while (expect_false (!activecnt)) |
1633 | do |
1348 | { |
1634 | { |
1349 | #ifndef _WIN32 |
1635 | #ifndef _WIN32 |
1350 | if (expect_false (curpid)) /* penalise the forking check even more */ |
1636 | if (expect_false (curpid)) /* penalise the forking check even more */ |
1351 | if (expect_false (getpid () != curpid)) |
1637 | if (expect_false (getpid () != curpid)) |
1352 | { |
1638 | { |
… | |
… | |
1363 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
1649 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
1364 | call_pending (EV_A); |
1650 | call_pending (EV_A); |
1365 | } |
1651 | } |
1366 | #endif |
1652 | #endif |
1367 | |
1653 | |
1368 | /* queue check watchers (and execute them) */ |
1654 | /* queue prepare watchers (and execute them) */ |
1369 | if (expect_false (preparecnt)) |
1655 | if (expect_false (preparecnt)) |
1370 | { |
1656 | { |
1371 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1657 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1372 | call_pending (EV_A); |
1658 | call_pending (EV_A); |
1373 | } |
1659 | } |
… | |
… | |
1382 | /* update fd-related kernel structures */ |
1668 | /* update fd-related kernel structures */ |
1383 | fd_reify (EV_A); |
1669 | fd_reify (EV_A); |
1384 | |
1670 | |
1385 | /* calculate blocking time */ |
1671 | /* calculate blocking time */ |
1386 | { |
1672 | { |
1387 | ev_tstamp block; |
1673 | ev_tstamp waittime = 0.; |
|
|
1674 | ev_tstamp sleeptime = 0.; |
1388 | |
1675 | |
1389 | if (expect_false (flags & EVLOOP_NONBLOCK || idlecnt || !activecnt)) |
1676 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
1390 | block = 0.; /* do not block at all */ |
|
|
1391 | else |
|
|
1392 | { |
1677 | { |
1393 | /* update time to cancel out callback processing overhead */ |
1678 | /* update time to cancel out callback processing overhead */ |
1394 | #if EV_USE_MONOTONIC |
|
|
1395 | if (expect_true (have_monotonic)) |
|
|
1396 | time_update_monotonic (EV_A); |
1679 | time_update (EV_A_ 1e100); |
1397 | else |
|
|
1398 | #endif |
|
|
1399 | { |
|
|
1400 | ev_rt_now = ev_time (); |
|
|
1401 | mn_now = ev_rt_now; |
|
|
1402 | } |
|
|
1403 | |
1680 | |
1404 | block = MAX_BLOCKTIME; |
1681 | waittime = MAX_BLOCKTIME; |
1405 | |
1682 | |
1406 | if (timercnt) |
1683 | if (timercnt) |
1407 | { |
1684 | { |
1408 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
1685 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
1409 | if (block > to) block = to; |
1686 | if (waittime > to) waittime = to; |
1410 | } |
1687 | } |
1411 | |
1688 | |
1412 | #if EV_PERIODIC_ENABLE |
1689 | #if EV_PERIODIC_ENABLE |
1413 | if (periodiccnt) |
1690 | if (periodiccnt) |
1414 | { |
1691 | { |
1415 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
1692 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
1416 | if (block > to) block = to; |
1693 | if (waittime > to) waittime = to; |
1417 | } |
1694 | } |
1418 | #endif |
1695 | #endif |
1419 | |
1696 | |
1420 | if (expect_false (block < 0.)) block = 0.; |
1697 | if (expect_false (waittime < timeout_blocktime)) |
|
|
1698 | waittime = timeout_blocktime; |
|
|
1699 | |
|
|
1700 | sleeptime = waittime - backend_fudge; |
|
|
1701 | |
|
|
1702 | if (expect_true (sleeptime > io_blocktime)) |
|
|
1703 | sleeptime = io_blocktime; |
|
|
1704 | |
|
|
1705 | if (sleeptime) |
|
|
1706 | { |
|
|
1707 | ev_sleep (sleeptime); |
|
|
1708 | waittime -= sleeptime; |
|
|
1709 | } |
1421 | } |
1710 | } |
1422 | |
1711 | |
|
|
1712 | ++loop_count; |
1423 | backend_poll (EV_A_ block); |
1713 | backend_poll (EV_A_ waittime); |
|
|
1714 | |
|
|
1715 | /* update ev_rt_now, do magic */ |
|
|
1716 | time_update (EV_A_ waittime + sleeptime); |
1424 | } |
1717 | } |
1425 | |
|
|
1426 | /* update ev_rt_now, do magic */ |
|
|
1427 | time_update (EV_A); |
|
|
1428 | |
1718 | |
1429 | /* queue pending timers and reschedule them */ |
1719 | /* queue pending timers and reschedule them */ |
1430 | timers_reify (EV_A); /* relative timers called last */ |
1720 | timers_reify (EV_A); /* relative timers called last */ |
1431 | #if EV_PERIODIC_ENABLE |
1721 | #if EV_PERIODIC_ENABLE |
1432 | periodics_reify (EV_A); /* absolute timers called first */ |
1722 | periodics_reify (EV_A); /* absolute timers called first */ |
1433 | #endif |
1723 | #endif |
1434 | |
1724 | |
|
|
1725 | #if EV_IDLE_ENABLE |
1435 | /* queue idle watchers unless other events are pending */ |
1726 | /* queue idle watchers unless other events are pending */ |
1436 | if (idlecnt && !any_pending (EV_A)) |
1727 | idle_reify (EV_A); |
1437 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
1728 | #endif |
1438 | |
1729 | |
1439 | /* queue check watchers, to be executed first */ |
1730 | /* queue check watchers, to be executed first */ |
1440 | if (expect_false (checkcnt)) |
1731 | if (expect_false (checkcnt)) |
1441 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1732 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1442 | |
1733 | |
1443 | call_pending (EV_A); |
1734 | call_pending (EV_A); |
1444 | |
|
|
1445 | if (expect_false (loop_done)) |
|
|
1446 | break; |
|
|
1447 | } |
1735 | } |
|
|
1736 | while (expect_true ( |
|
|
1737 | activecnt |
|
|
1738 | && !loop_done |
|
|
1739 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
|
|
1740 | )); |
1448 | |
1741 | |
1449 | if (loop_done == EVUNLOOP_ONE) |
1742 | if (loop_done == EVUNLOOP_ONE) |
1450 | loop_done = EVUNLOOP_CANCEL; |
1743 | loop_done = EVUNLOOP_CANCEL; |
1451 | } |
1744 | } |
1452 | |
1745 | |
… | |
… | |
1479 | head = &(*head)->next; |
1772 | head = &(*head)->next; |
1480 | } |
1773 | } |
1481 | } |
1774 | } |
1482 | |
1775 | |
1483 | void inline_speed |
1776 | void inline_speed |
1484 | ev_clear_pending (EV_P_ W w) |
1777 | clear_pending (EV_P_ W w) |
1485 | { |
1778 | { |
1486 | if (w->pending) |
1779 | if (w->pending) |
1487 | { |
1780 | { |
1488 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1781 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1489 | w->pending = 0; |
1782 | w->pending = 0; |
1490 | } |
1783 | } |
1491 | } |
1784 | } |
1492 | |
1785 | |
|
|
1786 | int |
|
|
1787 | ev_clear_pending (EV_P_ void *w) |
|
|
1788 | { |
|
|
1789 | W w_ = (W)w; |
|
|
1790 | int pending = w_->pending; |
|
|
1791 | |
|
|
1792 | if (expect_true (pending)) |
|
|
1793 | { |
|
|
1794 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
1795 | w_->pending = 0; |
|
|
1796 | p->w = 0; |
|
|
1797 | return p->events; |
|
|
1798 | } |
|
|
1799 | else |
|
|
1800 | return 0; |
|
|
1801 | } |
|
|
1802 | |
|
|
1803 | void inline_size |
|
|
1804 | pri_adjust (EV_P_ W w) |
|
|
1805 | { |
|
|
1806 | int pri = w->priority; |
|
|
1807 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
|
|
1808 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
|
|
1809 | w->priority = pri; |
|
|
1810 | } |
|
|
1811 | |
1493 | void inline_speed |
1812 | void inline_speed |
1494 | ev_start (EV_P_ W w, int active) |
1813 | ev_start (EV_P_ W w, int active) |
1495 | { |
1814 | { |
1496 | if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; |
1815 | pri_adjust (EV_A_ w); |
1497 | if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; |
|
|
1498 | |
|
|
1499 | w->active = active; |
1816 | w->active = active; |
1500 | ev_ref (EV_A); |
1817 | ev_ref (EV_A); |
1501 | } |
1818 | } |
1502 | |
1819 | |
1503 | void inline_size |
1820 | void inline_size |
… | |
… | |
1507 | w->active = 0; |
1824 | w->active = 0; |
1508 | } |
1825 | } |
1509 | |
1826 | |
1510 | /*****************************************************************************/ |
1827 | /*****************************************************************************/ |
1511 | |
1828 | |
1512 | void |
1829 | void noinline |
1513 | ev_io_start (EV_P_ ev_io *w) |
1830 | ev_io_start (EV_P_ ev_io *w) |
1514 | { |
1831 | { |
1515 | int fd = w->fd; |
1832 | int fd = w->fd; |
1516 | |
1833 | |
1517 | if (expect_false (ev_is_active (w))) |
1834 | if (expect_false (ev_is_active (w))) |
… | |
… | |
1519 | |
1836 | |
1520 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1837 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1521 | |
1838 | |
1522 | ev_start (EV_A_ (W)w, 1); |
1839 | ev_start (EV_A_ (W)w, 1); |
1523 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
1840 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
1524 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1841 | wlist_add (&anfds[fd].head, (WL)w); |
1525 | |
1842 | |
1526 | fd_change (EV_A_ fd); |
1843 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
|
|
1844 | w->events &= ~EV_IOFDSET; |
1527 | } |
1845 | } |
1528 | |
1846 | |
1529 | void |
1847 | void noinline |
1530 | ev_io_stop (EV_P_ ev_io *w) |
1848 | ev_io_stop (EV_P_ ev_io *w) |
1531 | { |
1849 | { |
1532 | ev_clear_pending (EV_A_ (W)w); |
1850 | clear_pending (EV_A_ (W)w); |
1533 | if (expect_false (!ev_is_active (w))) |
1851 | if (expect_false (!ev_is_active (w))) |
1534 | return; |
1852 | return; |
1535 | |
1853 | |
1536 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
1854 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
1537 | |
1855 | |
1538 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
1856 | wlist_del (&anfds[w->fd].head, (WL)w); |
1539 | ev_stop (EV_A_ (W)w); |
1857 | ev_stop (EV_A_ (W)w); |
1540 | |
1858 | |
1541 | fd_change (EV_A_ w->fd); |
1859 | fd_change (EV_A_ w->fd, 1); |
1542 | } |
1860 | } |
1543 | |
1861 | |
1544 | void |
1862 | void noinline |
1545 | ev_timer_start (EV_P_ ev_timer *w) |
1863 | ev_timer_start (EV_P_ ev_timer *w) |
1546 | { |
1864 | { |
1547 | if (expect_false (ev_is_active (w))) |
1865 | if (expect_false (ev_is_active (w))) |
1548 | return; |
1866 | return; |
1549 | |
1867 | |
1550 | ((WT)w)->at += mn_now; |
1868 | ((WT)w)->at += mn_now; |
1551 | |
1869 | |
1552 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1870 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1553 | |
1871 | |
1554 | ev_start (EV_A_ (W)w, ++timercnt); |
1872 | ev_start (EV_A_ (W)w, ++timercnt); |
1555 | array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2); |
1873 | array_needsize (WT, timers, timermax, timercnt, EMPTY2); |
1556 | timers [timercnt - 1] = w; |
1874 | timers [timercnt - 1] = (WT)w; |
1557 | upheap ((WT *)timers, timercnt - 1); |
1875 | upheap (timers, timercnt - 1); |
1558 | |
1876 | |
1559 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
1877 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
1560 | } |
1878 | } |
1561 | |
1879 | |
1562 | void |
1880 | void noinline |
1563 | ev_timer_stop (EV_P_ ev_timer *w) |
1881 | ev_timer_stop (EV_P_ ev_timer *w) |
1564 | { |
1882 | { |
1565 | ev_clear_pending (EV_A_ (W)w); |
1883 | clear_pending (EV_A_ (W)w); |
1566 | if (expect_false (!ev_is_active (w))) |
1884 | if (expect_false (!ev_is_active (w))) |
1567 | return; |
1885 | return; |
1568 | |
1886 | |
1569 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1887 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w)); |
1570 | |
1888 | |
1571 | { |
1889 | { |
1572 | int active = ((W)w)->active; |
1890 | int active = ((W)w)->active; |
1573 | |
1891 | |
1574 | if (expect_true (--active < --timercnt)) |
1892 | if (expect_true (--active < --timercnt)) |
1575 | { |
1893 | { |
1576 | timers [active] = timers [timercnt]; |
1894 | timers [active] = timers [timercnt]; |
1577 | adjustheap ((WT *)timers, timercnt, active); |
1895 | adjustheap (timers, timercnt, active); |
1578 | } |
1896 | } |
1579 | } |
1897 | } |
1580 | |
1898 | |
1581 | ((WT)w)->at -= mn_now; |
1899 | ((WT)w)->at -= mn_now; |
1582 | |
1900 | |
1583 | ev_stop (EV_A_ (W)w); |
1901 | ev_stop (EV_A_ (W)w); |
1584 | } |
1902 | } |
1585 | |
1903 | |
1586 | void |
1904 | void noinline |
1587 | ev_timer_again (EV_P_ ev_timer *w) |
1905 | ev_timer_again (EV_P_ ev_timer *w) |
1588 | { |
1906 | { |
1589 | if (ev_is_active (w)) |
1907 | if (ev_is_active (w)) |
1590 | { |
1908 | { |
1591 | if (w->repeat) |
1909 | if (w->repeat) |
1592 | { |
1910 | { |
1593 | ((WT)w)->at = mn_now + w->repeat; |
1911 | ((WT)w)->at = mn_now + w->repeat; |
1594 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1912 | adjustheap (timers, timercnt, ((W)w)->active - 1); |
1595 | } |
1913 | } |
1596 | else |
1914 | else |
1597 | ev_timer_stop (EV_A_ w); |
1915 | ev_timer_stop (EV_A_ w); |
1598 | } |
1916 | } |
1599 | else if (w->repeat) |
1917 | else if (w->repeat) |
… | |
… | |
1602 | ev_timer_start (EV_A_ w); |
1920 | ev_timer_start (EV_A_ w); |
1603 | } |
1921 | } |
1604 | } |
1922 | } |
1605 | |
1923 | |
1606 | #if EV_PERIODIC_ENABLE |
1924 | #if EV_PERIODIC_ENABLE |
1607 | void |
1925 | void noinline |
1608 | ev_periodic_start (EV_P_ ev_periodic *w) |
1926 | ev_periodic_start (EV_P_ ev_periodic *w) |
1609 | { |
1927 | { |
1610 | if (expect_false (ev_is_active (w))) |
1928 | if (expect_false (ev_is_active (w))) |
1611 | return; |
1929 | return; |
1612 | |
1930 | |
… | |
… | |
1614 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1932 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1615 | else if (w->interval) |
1933 | else if (w->interval) |
1616 | { |
1934 | { |
1617 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1935 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1618 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1936 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1619 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1937 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1620 | } |
1938 | } |
|
|
1939 | else |
|
|
1940 | ((WT)w)->at = w->offset; |
1621 | |
1941 | |
1622 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1942 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1623 | array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); |
1943 | array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2); |
1624 | periodics [periodiccnt - 1] = w; |
1944 | periodics [periodiccnt - 1] = (WT)w; |
1625 | upheap ((WT *)periodics, periodiccnt - 1); |
1945 | upheap (periodics, periodiccnt - 1); |
1626 | |
1946 | |
1627 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
1947 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
1628 | } |
1948 | } |
1629 | |
1949 | |
1630 | void |
1950 | void noinline |
1631 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1951 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1632 | { |
1952 | { |
1633 | ev_clear_pending (EV_A_ (W)w); |
1953 | clear_pending (EV_A_ (W)w); |
1634 | if (expect_false (!ev_is_active (w))) |
1954 | if (expect_false (!ev_is_active (w))) |
1635 | return; |
1955 | return; |
1636 | |
1956 | |
1637 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1957 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w)); |
1638 | |
1958 | |
1639 | { |
1959 | { |
1640 | int active = ((W)w)->active; |
1960 | int active = ((W)w)->active; |
1641 | |
1961 | |
1642 | if (expect_true (--active < --periodiccnt)) |
1962 | if (expect_true (--active < --periodiccnt)) |
1643 | { |
1963 | { |
1644 | periodics [active] = periodics [periodiccnt]; |
1964 | periodics [active] = periodics [periodiccnt]; |
1645 | adjustheap ((WT *)periodics, periodiccnt, active); |
1965 | adjustheap (periodics, periodiccnt, active); |
1646 | } |
1966 | } |
1647 | } |
1967 | } |
1648 | |
1968 | |
1649 | ev_stop (EV_A_ (W)w); |
1969 | ev_stop (EV_A_ (W)w); |
1650 | } |
1970 | } |
1651 | |
1971 | |
1652 | void |
1972 | void noinline |
1653 | ev_periodic_again (EV_P_ ev_periodic *w) |
1973 | ev_periodic_again (EV_P_ ev_periodic *w) |
1654 | { |
1974 | { |
1655 | /* TODO: use adjustheap and recalculation */ |
1975 | /* TODO: use adjustheap and recalculation */ |
1656 | ev_periodic_stop (EV_A_ w); |
1976 | ev_periodic_stop (EV_A_ w); |
1657 | ev_periodic_start (EV_A_ w); |
1977 | ev_periodic_start (EV_A_ w); |
… | |
… | |
1660 | |
1980 | |
1661 | #ifndef SA_RESTART |
1981 | #ifndef SA_RESTART |
1662 | # define SA_RESTART 0 |
1982 | # define SA_RESTART 0 |
1663 | #endif |
1983 | #endif |
1664 | |
1984 | |
1665 | void |
1985 | void noinline |
1666 | ev_signal_start (EV_P_ ev_signal *w) |
1986 | ev_signal_start (EV_P_ ev_signal *w) |
1667 | { |
1987 | { |
1668 | #if EV_MULTIPLICITY |
1988 | #if EV_MULTIPLICITY |
1669 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1989 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1670 | #endif |
1990 | #endif |
1671 | if (expect_false (ev_is_active (w))) |
1991 | if (expect_false (ev_is_active (w))) |
1672 | return; |
1992 | return; |
1673 | |
1993 | |
1674 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1994 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1675 | |
1995 | |
|
|
1996 | evpipe_init (EV_A); |
|
|
1997 | |
|
|
1998 | { |
|
|
1999 | #ifndef _WIN32 |
|
|
2000 | sigset_t full, prev; |
|
|
2001 | sigfillset (&full); |
|
|
2002 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2003 | #endif |
|
|
2004 | |
|
|
2005 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
|
|
2006 | |
|
|
2007 | #ifndef _WIN32 |
|
|
2008 | sigprocmask (SIG_SETMASK, &prev, 0); |
|
|
2009 | #endif |
|
|
2010 | } |
|
|
2011 | |
1676 | ev_start (EV_A_ (W)w, 1); |
2012 | ev_start (EV_A_ (W)w, 1); |
1677 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
|
|
1678 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
2013 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
1679 | |
2014 | |
1680 | if (!((WL)w)->next) |
2015 | if (!((WL)w)->next) |
1681 | { |
2016 | { |
1682 | #if _WIN32 |
2017 | #if _WIN32 |
1683 | signal (w->signum, sighandler); |
2018 | signal (w->signum, ev_sighandler); |
1684 | #else |
2019 | #else |
1685 | struct sigaction sa; |
2020 | struct sigaction sa; |
1686 | sa.sa_handler = sighandler; |
2021 | sa.sa_handler = ev_sighandler; |
1687 | sigfillset (&sa.sa_mask); |
2022 | sigfillset (&sa.sa_mask); |
1688 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2023 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1689 | sigaction (w->signum, &sa, 0); |
2024 | sigaction (w->signum, &sa, 0); |
1690 | #endif |
2025 | #endif |
1691 | } |
2026 | } |
1692 | } |
2027 | } |
1693 | |
2028 | |
1694 | void |
2029 | void noinline |
1695 | ev_signal_stop (EV_P_ ev_signal *w) |
2030 | ev_signal_stop (EV_P_ ev_signal *w) |
1696 | { |
2031 | { |
1697 | ev_clear_pending (EV_A_ (W)w); |
2032 | clear_pending (EV_A_ (W)w); |
1698 | if (expect_false (!ev_is_active (w))) |
2033 | if (expect_false (!ev_is_active (w))) |
1699 | return; |
2034 | return; |
1700 | |
2035 | |
1701 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
2036 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
1702 | ev_stop (EV_A_ (W)w); |
2037 | ev_stop (EV_A_ (W)w); |
1703 | |
2038 | |
1704 | if (!signals [w->signum - 1].head) |
2039 | if (!signals [w->signum - 1].head) |
1705 | signal (w->signum, SIG_DFL); |
2040 | signal (w->signum, SIG_DFL); |
1706 | } |
2041 | } |
… | |
… | |
1713 | #endif |
2048 | #endif |
1714 | if (expect_false (ev_is_active (w))) |
2049 | if (expect_false (ev_is_active (w))) |
1715 | return; |
2050 | return; |
1716 | |
2051 | |
1717 | ev_start (EV_A_ (W)w, 1); |
2052 | ev_start (EV_A_ (W)w, 1); |
1718 | wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2053 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1719 | } |
2054 | } |
1720 | |
2055 | |
1721 | void |
2056 | void |
1722 | ev_child_stop (EV_P_ ev_child *w) |
2057 | ev_child_stop (EV_P_ ev_child *w) |
1723 | { |
2058 | { |
1724 | ev_clear_pending (EV_A_ (W)w); |
2059 | clear_pending (EV_A_ (W)w); |
1725 | if (expect_false (!ev_is_active (w))) |
2060 | if (expect_false (!ev_is_active (w))) |
1726 | return; |
2061 | return; |
1727 | |
2062 | |
1728 | wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2063 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1729 | ev_stop (EV_A_ (W)w); |
2064 | ev_stop (EV_A_ (W)w); |
1730 | } |
2065 | } |
1731 | |
2066 | |
1732 | #if EV_STAT_ENABLE |
2067 | #if EV_STAT_ENABLE |
1733 | |
2068 | |
… | |
… | |
1965 | } |
2300 | } |
1966 | |
2301 | |
1967 | void |
2302 | void |
1968 | ev_stat_stop (EV_P_ ev_stat *w) |
2303 | ev_stat_stop (EV_P_ ev_stat *w) |
1969 | { |
2304 | { |
1970 | ev_clear_pending (EV_A_ (W)w); |
2305 | clear_pending (EV_A_ (W)w); |
1971 | if (expect_false (!ev_is_active (w))) |
2306 | if (expect_false (!ev_is_active (w))) |
1972 | return; |
2307 | return; |
1973 | |
2308 | |
1974 | #if EV_USE_INOTIFY |
2309 | #if EV_USE_INOTIFY |
1975 | infy_del (EV_A_ w); |
2310 | infy_del (EV_A_ w); |
… | |
… | |
1978 | |
2313 | |
1979 | ev_stop (EV_A_ (W)w); |
2314 | ev_stop (EV_A_ (W)w); |
1980 | } |
2315 | } |
1981 | #endif |
2316 | #endif |
1982 | |
2317 | |
|
|
2318 | #if EV_IDLE_ENABLE |
1983 | void |
2319 | void |
1984 | ev_idle_start (EV_P_ ev_idle *w) |
2320 | ev_idle_start (EV_P_ ev_idle *w) |
1985 | { |
2321 | { |
1986 | if (expect_false (ev_is_active (w))) |
2322 | if (expect_false (ev_is_active (w))) |
1987 | return; |
2323 | return; |
1988 | |
2324 | |
|
|
2325 | pri_adjust (EV_A_ (W)w); |
|
|
2326 | |
|
|
2327 | { |
|
|
2328 | int active = ++idlecnt [ABSPRI (w)]; |
|
|
2329 | |
|
|
2330 | ++idleall; |
1989 | ev_start (EV_A_ (W)w, ++idlecnt); |
2331 | ev_start (EV_A_ (W)w, active); |
|
|
2332 | |
1990 | array_needsize (ev_idle *, idles, idlemax, idlecnt, EMPTY2); |
2333 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
1991 | idles [idlecnt - 1] = w; |
2334 | idles [ABSPRI (w)][active - 1] = w; |
|
|
2335 | } |
1992 | } |
2336 | } |
1993 | |
2337 | |
1994 | void |
2338 | void |
1995 | ev_idle_stop (EV_P_ ev_idle *w) |
2339 | ev_idle_stop (EV_P_ ev_idle *w) |
1996 | { |
2340 | { |
1997 | ev_clear_pending (EV_A_ (W)w); |
2341 | clear_pending (EV_A_ (W)w); |
1998 | if (expect_false (!ev_is_active (w))) |
2342 | if (expect_false (!ev_is_active (w))) |
1999 | return; |
2343 | return; |
2000 | |
2344 | |
2001 | { |
2345 | { |
2002 | int active = ((W)w)->active; |
2346 | int active = ((W)w)->active; |
2003 | idles [active - 1] = idles [--idlecnt]; |
2347 | |
|
|
2348 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2004 | ((W)idles [active - 1])->active = active; |
2349 | ((W)idles [ABSPRI (w)][active - 1])->active = active; |
|
|
2350 | |
|
|
2351 | ev_stop (EV_A_ (W)w); |
|
|
2352 | --idleall; |
2005 | } |
2353 | } |
2006 | |
|
|
2007 | ev_stop (EV_A_ (W)w); |
|
|
2008 | } |
2354 | } |
|
|
2355 | #endif |
2009 | |
2356 | |
2010 | void |
2357 | void |
2011 | ev_prepare_start (EV_P_ ev_prepare *w) |
2358 | ev_prepare_start (EV_P_ ev_prepare *w) |
2012 | { |
2359 | { |
2013 | if (expect_false (ev_is_active (w))) |
2360 | if (expect_false (ev_is_active (w))) |
… | |
… | |
2019 | } |
2366 | } |
2020 | |
2367 | |
2021 | void |
2368 | void |
2022 | ev_prepare_stop (EV_P_ ev_prepare *w) |
2369 | ev_prepare_stop (EV_P_ ev_prepare *w) |
2023 | { |
2370 | { |
2024 | ev_clear_pending (EV_A_ (W)w); |
2371 | clear_pending (EV_A_ (W)w); |
2025 | if (expect_false (!ev_is_active (w))) |
2372 | if (expect_false (!ev_is_active (w))) |
2026 | return; |
2373 | return; |
2027 | |
2374 | |
2028 | { |
2375 | { |
2029 | int active = ((W)w)->active; |
2376 | int active = ((W)w)->active; |
… | |
… | |
2046 | } |
2393 | } |
2047 | |
2394 | |
2048 | void |
2395 | void |
2049 | ev_check_stop (EV_P_ ev_check *w) |
2396 | ev_check_stop (EV_P_ ev_check *w) |
2050 | { |
2397 | { |
2051 | ev_clear_pending (EV_A_ (W)w); |
2398 | clear_pending (EV_A_ (W)w); |
2052 | if (expect_false (!ev_is_active (w))) |
2399 | if (expect_false (!ev_is_active (w))) |
2053 | return; |
2400 | return; |
2054 | |
2401 | |
2055 | { |
2402 | { |
2056 | int active = ((W)w)->active; |
2403 | int active = ((W)w)->active; |
… | |
… | |
2063 | |
2410 | |
2064 | #if EV_EMBED_ENABLE |
2411 | #if EV_EMBED_ENABLE |
2065 | void noinline |
2412 | void noinline |
2066 | ev_embed_sweep (EV_P_ ev_embed *w) |
2413 | ev_embed_sweep (EV_P_ ev_embed *w) |
2067 | { |
2414 | { |
2068 | ev_loop (w->loop, EVLOOP_NONBLOCK); |
2415 | ev_loop (w->other, EVLOOP_NONBLOCK); |
2069 | } |
2416 | } |
2070 | |
2417 | |
2071 | static void |
2418 | static void |
2072 | embed_cb (EV_P_ ev_io *io, int revents) |
2419 | embed_io_cb (EV_P_ ev_io *io, int revents) |
2073 | { |
2420 | { |
2074 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
2421 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
2075 | |
2422 | |
2076 | if (ev_cb (w)) |
2423 | if (ev_cb (w)) |
2077 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2424 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2078 | else |
2425 | else |
2079 | ev_embed_sweep (loop, w); |
2426 | ev_loop (w->other, EVLOOP_NONBLOCK); |
2080 | } |
2427 | } |
|
|
2428 | |
|
|
2429 | static void |
|
|
2430 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
|
|
2431 | { |
|
|
2432 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
|
|
2433 | |
|
|
2434 | { |
|
|
2435 | struct ev_loop *loop = w->other; |
|
|
2436 | |
|
|
2437 | while (fdchangecnt) |
|
|
2438 | { |
|
|
2439 | fd_reify (EV_A); |
|
|
2440 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
2441 | } |
|
|
2442 | } |
|
|
2443 | } |
|
|
2444 | |
|
|
2445 | #if 0 |
|
|
2446 | static void |
|
|
2447 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
|
|
2448 | { |
|
|
2449 | ev_idle_stop (EV_A_ idle); |
|
|
2450 | } |
|
|
2451 | #endif |
2081 | |
2452 | |
2082 | void |
2453 | void |
2083 | ev_embed_start (EV_P_ ev_embed *w) |
2454 | ev_embed_start (EV_P_ ev_embed *w) |
2084 | { |
2455 | { |
2085 | if (expect_false (ev_is_active (w))) |
2456 | if (expect_false (ev_is_active (w))) |
2086 | return; |
2457 | return; |
2087 | |
2458 | |
2088 | { |
2459 | { |
2089 | struct ev_loop *loop = w->loop; |
2460 | struct ev_loop *loop = w->other; |
2090 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2461 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2091 | ev_io_init (&w->io, embed_cb, backend_fd, EV_READ); |
2462 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2092 | } |
2463 | } |
2093 | |
2464 | |
2094 | ev_set_priority (&w->io, ev_priority (w)); |
2465 | ev_set_priority (&w->io, ev_priority (w)); |
2095 | ev_io_start (EV_A_ &w->io); |
2466 | ev_io_start (EV_A_ &w->io); |
2096 | |
2467 | |
|
|
2468 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
|
|
2469 | ev_set_priority (&w->prepare, EV_MINPRI); |
|
|
2470 | ev_prepare_start (EV_A_ &w->prepare); |
|
|
2471 | |
|
|
2472 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
|
|
2473 | |
2097 | ev_start (EV_A_ (W)w, 1); |
2474 | ev_start (EV_A_ (W)w, 1); |
2098 | } |
2475 | } |
2099 | |
2476 | |
2100 | void |
2477 | void |
2101 | ev_embed_stop (EV_P_ ev_embed *w) |
2478 | ev_embed_stop (EV_P_ ev_embed *w) |
2102 | { |
2479 | { |
2103 | ev_clear_pending (EV_A_ (W)w); |
2480 | clear_pending (EV_A_ (W)w); |
2104 | if (expect_false (!ev_is_active (w))) |
2481 | if (expect_false (!ev_is_active (w))) |
2105 | return; |
2482 | return; |
2106 | |
2483 | |
2107 | ev_io_stop (EV_A_ &w->io); |
2484 | ev_io_stop (EV_A_ &w->io); |
|
|
2485 | ev_prepare_stop (EV_A_ &w->prepare); |
2108 | |
2486 | |
2109 | ev_stop (EV_A_ (W)w); |
2487 | ev_stop (EV_A_ (W)w); |
2110 | } |
2488 | } |
2111 | #endif |
2489 | #endif |
2112 | |
2490 | |
… | |
… | |
2123 | } |
2501 | } |
2124 | |
2502 | |
2125 | void |
2503 | void |
2126 | ev_fork_stop (EV_P_ ev_fork *w) |
2504 | ev_fork_stop (EV_P_ ev_fork *w) |
2127 | { |
2505 | { |
2128 | ev_clear_pending (EV_A_ (W)w); |
2506 | clear_pending (EV_A_ (W)w); |
2129 | if (expect_false (!ev_is_active (w))) |
2507 | if (expect_false (!ev_is_active (w))) |
2130 | return; |
2508 | return; |
2131 | |
2509 | |
2132 | { |
2510 | { |
2133 | int active = ((W)w)->active; |
2511 | int active = ((W)w)->active; |
… | |
… | |
2137 | |
2515 | |
2138 | ev_stop (EV_A_ (W)w); |
2516 | ev_stop (EV_A_ (W)w); |
2139 | } |
2517 | } |
2140 | #endif |
2518 | #endif |
2141 | |
2519 | |
|
|
2520 | #if EV_ASYNC_ENABLE |
|
|
2521 | void |
|
|
2522 | ev_async_start (EV_P_ ev_async *w) |
|
|
2523 | { |
|
|
2524 | if (expect_false (ev_is_active (w))) |
|
|
2525 | return; |
|
|
2526 | |
|
|
2527 | evpipe_init (EV_A); |
|
|
2528 | |
|
|
2529 | ev_start (EV_A_ (W)w, ++asynccnt); |
|
|
2530 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
|
|
2531 | asyncs [asynccnt - 1] = w; |
|
|
2532 | } |
|
|
2533 | |
|
|
2534 | void |
|
|
2535 | ev_async_stop (EV_P_ ev_async *w) |
|
|
2536 | { |
|
|
2537 | clear_pending (EV_A_ (W)w); |
|
|
2538 | if (expect_false (!ev_is_active (w))) |
|
|
2539 | return; |
|
|
2540 | |
|
|
2541 | { |
|
|
2542 | int active = ((W)w)->active; |
|
|
2543 | asyncs [active - 1] = asyncs [--asynccnt]; |
|
|
2544 | ((W)asyncs [active - 1])->active = active; |
|
|
2545 | } |
|
|
2546 | |
|
|
2547 | ev_stop (EV_A_ (W)w); |
|
|
2548 | } |
|
|
2549 | |
|
|
2550 | void |
|
|
2551 | ev_async_send (EV_P_ ev_async *w) |
|
|
2552 | { |
|
|
2553 | w->sent = 1; |
|
|
2554 | evpipe_write (EV_A_ &gotasync); |
|
|
2555 | } |
|
|
2556 | #endif |
|
|
2557 | |
2142 | /*****************************************************************************/ |
2558 | /*****************************************************************************/ |
2143 | |
2559 | |
2144 | struct ev_once |
2560 | struct ev_once |
2145 | { |
2561 | { |
2146 | ev_io io; |
2562 | ev_io io; |
… | |
… | |
2201 | ev_timer_set (&once->to, timeout, 0.); |
2617 | ev_timer_set (&once->to, timeout, 0.); |
2202 | ev_timer_start (EV_A_ &once->to); |
2618 | ev_timer_start (EV_A_ &once->to); |
2203 | } |
2619 | } |
2204 | } |
2620 | } |
2205 | |
2621 | |
|
|
2622 | #if EV_MULTIPLICITY |
|
|
2623 | #include "ev_wrap.h" |
|
|
2624 | #endif |
|
|
2625 | |
2206 | #ifdef __cplusplus |
2626 | #ifdef __cplusplus |
2207 | } |
2627 | } |
2208 | #endif |
2628 | #endif |
2209 | |
2629 | |