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 && __GNUC__ < 2 |
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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)w)->priority - EV_MINPRI) |
321 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
247 | |
322 | |
248 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
323 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
… | |
… | |
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 | #define ev_active(w) ((W)(w))->active |
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331 | #define ev_at(w) ((WT)(w))->at |
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332 | |
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333 | #if EV_USE_MONOTONIC |
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334 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
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335 | /* giving it a reasonably high chance of working on typical architetcures */ |
255 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
336 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
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337 | #endif |
256 | |
338 | |
257 | #ifdef _WIN32 |
339 | #ifdef _WIN32 |
258 | # include "ev_win32.c" |
340 | # include "ev_win32.c" |
259 | #endif |
341 | #endif |
260 | |
342 | |
… | |
… | |
281 | perror (msg); |
363 | perror (msg); |
282 | abort (); |
364 | abort (); |
283 | } |
365 | } |
284 | } |
366 | } |
285 | |
367 | |
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368 | static void * |
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369 | ev_realloc_emul (void *ptr, long size) |
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370 | { |
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371 | /* some systems, notably openbsd and darwin, fail to properly |
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372 | * implement realloc (x, 0) (as required by both ansi c-98 and |
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373 | * the single unix specification, so work around them here. |
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374 | */ |
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375 | |
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376 | if (size) |
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377 | return realloc (ptr, size); |
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378 | |
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379 | free (ptr); |
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380 | return 0; |
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381 | } |
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382 | |
286 | static void *(*alloc)(void *ptr, long size); |
383 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
287 | |
384 | |
288 | void |
385 | void |
289 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
386 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
290 | { |
387 | { |
291 | alloc = cb; |
388 | alloc = cb; |
292 | } |
389 | } |
293 | |
390 | |
294 | inline_speed void * |
391 | inline_speed void * |
295 | ev_realloc (void *ptr, long size) |
392 | ev_realloc (void *ptr, long size) |
296 | { |
393 | { |
297 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
394 | ptr = alloc (ptr, size); |
298 | |
395 | |
299 | if (!ptr && size) |
396 | if (!ptr && size) |
300 | { |
397 | { |
301 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
398 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
302 | abort (); |
399 | abort (); |
… | |
… | |
325 | W w; |
422 | W w; |
326 | int events; |
423 | int events; |
327 | } ANPENDING; |
424 | } ANPENDING; |
328 | |
425 | |
329 | #if EV_USE_INOTIFY |
426 | #if EV_USE_INOTIFY |
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427 | /* hash table entry per inotify-id */ |
330 | typedef struct |
428 | typedef struct |
331 | { |
429 | { |
332 | WL head; |
430 | WL head; |
333 | } ANFS; |
431 | } ANFS; |
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432 | #endif |
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433 | |
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434 | /* Heap Entry */ |
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435 | #define EV_HEAP_CACHE_AT 0 |
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436 | #if EV_HEAP_CACHE_AT |
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437 | typedef struct { |
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438 | WT w; |
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439 | ev_tstamp at; |
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440 | } ANHE; |
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441 | |
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442 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
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443 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
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444 | #define ANHE_at_set(he) (he).at = (he).w->at /* update at from watcher */ |
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445 | #else |
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446 | typedef WT ANHE; |
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447 | |
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448 | #define ANHE_w(he) (he) |
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449 | #define ANHE_at(he) (he)->at |
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450 | #define ANHE_at_set(he) |
334 | #endif |
451 | #endif |
335 | |
452 | |
336 | #if EV_MULTIPLICITY |
453 | #if EV_MULTIPLICITY |
337 | |
454 | |
338 | struct ev_loop |
455 | struct ev_loop |
… | |
… | |
396 | { |
513 | { |
397 | return ev_rt_now; |
514 | return ev_rt_now; |
398 | } |
515 | } |
399 | #endif |
516 | #endif |
400 | |
517 | |
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518 | void |
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519 | ev_sleep (ev_tstamp delay) |
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520 | { |
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521 | if (delay > 0.) |
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522 | { |
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523 | #if EV_USE_NANOSLEEP |
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524 | struct timespec ts; |
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525 | |
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526 | ts.tv_sec = (time_t)delay; |
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527 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
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528 | |
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529 | nanosleep (&ts, 0); |
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530 | #elif defined(_WIN32) |
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531 | Sleep ((unsigned long)(delay * 1e3)); |
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532 | #else |
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533 | struct timeval tv; |
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534 | |
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535 | tv.tv_sec = (time_t)delay; |
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536 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
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537 | |
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538 | select (0, 0, 0, 0, &tv); |
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539 | #endif |
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540 | } |
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541 | } |
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542 | |
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543 | /*****************************************************************************/ |
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544 | |
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545 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
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546 | |
401 | int inline_size |
547 | int inline_size |
402 | array_nextsize (int elem, int cur, int cnt) |
548 | array_nextsize (int elem, int cur, int cnt) |
403 | { |
549 | { |
404 | int ncur = cur + 1; |
550 | int ncur = cur + 1; |
405 | |
551 | |
406 | do |
552 | do |
407 | ncur <<= 1; |
553 | ncur <<= 1; |
408 | while (cnt > ncur); |
554 | while (cnt > ncur); |
409 | |
555 | |
410 | /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */ |
556 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
411 | if (elem * ncur > 4096) |
557 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
412 | { |
558 | { |
413 | ncur *= elem; |
559 | ncur *= elem; |
414 | ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095; |
560 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
415 | ncur = ncur - sizeof (void *) * 4; |
561 | ncur = ncur - sizeof (void *) * 4; |
416 | ncur /= elem; |
562 | ncur /= elem; |
417 | } |
563 | } |
418 | |
564 | |
419 | return ncur; |
565 | return ncur; |
420 | } |
566 | } |
421 | |
567 | |
422 | inline_speed void * |
568 | static noinline void * |
423 | array_realloc (int elem, void *base, int *cur, int cnt) |
569 | array_realloc (int elem, void *base, int *cur, int cnt) |
424 | { |
570 | { |
425 | *cur = array_nextsize (elem, *cur, cnt); |
571 | *cur = array_nextsize (elem, *cur, cnt); |
426 | return ev_realloc (base, elem * *cur); |
572 | return ev_realloc (base, elem * *cur); |
427 | } |
573 | } |
… | |
… | |
452 | |
598 | |
453 | void noinline |
599 | void noinline |
454 | ev_feed_event (EV_P_ void *w, int revents) |
600 | ev_feed_event (EV_P_ void *w, int revents) |
455 | { |
601 | { |
456 | W w_ = (W)w; |
602 | W w_ = (W)w; |
|
|
603 | int pri = ABSPRI (w_); |
457 | |
604 | |
458 | if (expect_false (w_->pending)) |
605 | if (expect_false (w_->pending)) |
|
|
606 | pendings [pri][w_->pending - 1].events |= revents; |
|
|
607 | else |
459 | { |
608 | { |
|
|
609 | w_->pending = ++pendingcnt [pri]; |
|
|
610 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
|
|
611 | pendings [pri][w_->pending - 1].w = w_; |
460 | pendings [ABSPRI (w_)][w_->pending - 1].events |= revents; |
612 | pendings [pri][w_->pending - 1].events = revents; |
461 | return; |
|
|
462 | } |
613 | } |
463 | |
|
|
464 | w_->pending = ++pendingcnt [ABSPRI (w_)]; |
|
|
465 | array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2); |
|
|
466 | pendings [ABSPRI (w_)][w_->pending - 1].w = w_; |
|
|
467 | pendings [ABSPRI (w_)][w_->pending - 1].events = revents; |
|
|
468 | } |
614 | } |
469 | |
615 | |
470 | void inline_size |
616 | void inline_speed |
471 | queue_events (EV_P_ W *events, int eventcnt, int type) |
617 | queue_events (EV_P_ W *events, int eventcnt, int type) |
472 | { |
618 | { |
473 | int i; |
619 | int i; |
474 | |
620 | |
475 | for (i = 0; i < eventcnt; ++i) |
621 | for (i = 0; i < eventcnt; ++i) |
… | |
… | |
507 | } |
653 | } |
508 | |
654 | |
509 | void |
655 | void |
510 | ev_feed_fd_event (EV_P_ int fd, int revents) |
656 | ev_feed_fd_event (EV_P_ int fd, int revents) |
511 | { |
657 | { |
|
|
658 | if (fd >= 0 && fd < anfdmax) |
512 | fd_event (EV_A_ fd, revents); |
659 | fd_event (EV_A_ fd, revents); |
513 | } |
660 | } |
514 | |
661 | |
515 | void inline_size |
662 | void inline_size |
516 | fd_reify (EV_P) |
663 | fd_reify (EV_P) |
517 | { |
664 | { |
… | |
… | |
521 | { |
668 | { |
522 | int fd = fdchanges [i]; |
669 | int fd = fdchanges [i]; |
523 | ANFD *anfd = anfds + fd; |
670 | ANFD *anfd = anfds + fd; |
524 | ev_io *w; |
671 | ev_io *w; |
525 | |
672 | |
526 | int events = 0; |
673 | unsigned char events = 0; |
527 | |
674 | |
528 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
675 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
529 | events |= w->events; |
676 | events |= (unsigned char)w->events; |
530 | |
677 | |
531 | #if EV_SELECT_IS_WINSOCKET |
678 | #if EV_SELECT_IS_WINSOCKET |
532 | if (events) |
679 | if (events) |
533 | { |
680 | { |
534 | unsigned long argp; |
681 | unsigned long argp; |
|
|
682 | #ifdef EV_FD_TO_WIN32_HANDLE |
|
|
683 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
684 | #else |
535 | anfd->handle = _get_osfhandle (fd); |
685 | anfd->handle = _get_osfhandle (fd); |
|
|
686 | #endif |
536 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
687 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
537 | } |
688 | } |
538 | #endif |
689 | #endif |
539 | |
690 | |
|
|
691 | { |
|
|
692 | unsigned char o_events = anfd->events; |
|
|
693 | unsigned char o_reify = anfd->reify; |
|
|
694 | |
540 | anfd->reify = 0; |
695 | anfd->reify = 0; |
541 | |
|
|
542 | backend_modify (EV_A_ fd, anfd->events, events); |
|
|
543 | anfd->events = events; |
696 | anfd->events = events; |
|
|
697 | |
|
|
698 | if (o_events != events || o_reify & EV_IOFDSET) |
|
|
699 | backend_modify (EV_A_ fd, o_events, events); |
|
|
700 | } |
544 | } |
701 | } |
545 | |
702 | |
546 | fdchangecnt = 0; |
703 | fdchangecnt = 0; |
547 | } |
704 | } |
548 | |
705 | |
549 | void inline_size |
706 | void inline_size |
550 | fd_change (EV_P_ int fd) |
707 | fd_change (EV_P_ int fd, int flags) |
551 | { |
708 | { |
552 | if (expect_false (anfds [fd].reify)) |
709 | unsigned char reify = anfds [fd].reify; |
553 | return; |
|
|
554 | |
|
|
555 | anfds [fd].reify = 1; |
710 | anfds [fd].reify |= flags; |
556 | |
711 | |
|
|
712 | if (expect_true (!reify)) |
|
|
713 | { |
557 | ++fdchangecnt; |
714 | ++fdchangecnt; |
558 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
715 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
559 | fdchanges [fdchangecnt - 1] = fd; |
716 | fdchanges [fdchangecnt - 1] = fd; |
|
|
717 | } |
560 | } |
718 | } |
561 | |
719 | |
562 | void inline_speed |
720 | void inline_speed |
563 | fd_kill (EV_P_ int fd) |
721 | fd_kill (EV_P_ int fd) |
564 | { |
722 | { |
… | |
… | |
615 | |
773 | |
616 | for (fd = 0; fd < anfdmax; ++fd) |
774 | for (fd = 0; fd < anfdmax; ++fd) |
617 | if (anfds [fd].events) |
775 | if (anfds [fd].events) |
618 | { |
776 | { |
619 | anfds [fd].events = 0; |
777 | anfds [fd].events = 0; |
620 | fd_change (EV_A_ fd); |
778 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
621 | } |
779 | } |
622 | } |
780 | } |
623 | |
781 | |
624 | /*****************************************************************************/ |
782 | /*****************************************************************************/ |
625 | |
783 | |
|
|
784 | /* |
|
|
785 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
|
|
786 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
|
|
787 | * the branching factor of the d-tree. |
|
|
788 | */ |
|
|
789 | |
|
|
790 | /* |
|
|
791 | * at the moment we allow libev the luxury of two heaps, |
|
|
792 | * a small-code-size 2-heap one and a ~1.5kb larger 4-heap |
|
|
793 | * which is more cache-efficient. |
|
|
794 | * the difference is about 5% with 50000+ watchers. |
|
|
795 | */ |
|
|
796 | #define EV_USE_4HEAP !EV_MINIMAL |
|
|
797 | #if EV_USE_4HEAP |
|
|
798 | |
|
|
799 | #define DHEAP 4 |
|
|
800 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
|
|
801 | |
|
|
802 | /* towards the root */ |
626 | void inline_speed |
803 | void inline_speed |
627 | upheap (WT *heap, int k) |
804 | upheap (ANHE *heap, int k) |
628 | { |
805 | { |
629 | WT w = heap [k]; |
806 | ANHE he = heap [k]; |
630 | |
807 | |
631 | while (k && heap [k >> 1]->at > w->at) |
808 | for (;;) |
632 | { |
809 | { |
|
|
810 | int p = ((k - HEAP0 - 1) / DHEAP) + HEAP0; |
|
|
811 | |
|
|
812 | if (p == k || ANHE_at (heap [p]) <= ANHE_at (he)) |
|
|
813 | break; |
|
|
814 | |
633 | heap [k] = heap [k >> 1]; |
815 | heap [k] = heap [p]; |
634 | ((W)heap [k])->active = k + 1; |
816 | ev_active (ANHE_w (heap [k])) = k; |
635 | k >>= 1; |
817 | k = p; |
|
|
818 | } |
|
|
819 | |
|
|
820 | ev_active (ANHE_w (he)) = k; |
|
|
821 | heap [k] = he; |
|
|
822 | } |
|
|
823 | |
|
|
824 | /* away from the root */ |
|
|
825 | void inline_speed |
|
|
826 | downheap (ANHE *heap, int N, int k) |
|
|
827 | { |
|
|
828 | ANHE he = heap [k]; |
|
|
829 | ANHE *E = heap + N + HEAP0; |
|
|
830 | |
|
|
831 | for (;;) |
|
|
832 | { |
|
|
833 | ev_tstamp minat; |
|
|
834 | ANHE *minpos; |
|
|
835 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0; |
|
|
836 | |
|
|
837 | // find minimum child |
|
|
838 | if (expect_true (pos + DHEAP - 1 < E)) |
|
|
839 | { |
|
|
840 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
841 | if (ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
842 | if (ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
843 | if (ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
844 | } |
|
|
845 | else if (pos < E) |
|
|
846 | { |
|
|
847 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
848 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
849 | if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
850 | if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
851 | } |
|
|
852 | else |
|
|
853 | break; |
|
|
854 | |
|
|
855 | if (ANHE_at (he) <= minat) |
|
|
856 | break; |
|
|
857 | |
|
|
858 | ev_active (ANHE_w (*minpos)) = k; |
|
|
859 | heap [k] = *minpos; |
|
|
860 | |
|
|
861 | k = minpos - heap; |
|
|
862 | } |
|
|
863 | |
|
|
864 | ev_active (ANHE_w (he)) = k; |
|
|
865 | heap [k] = he; |
|
|
866 | } |
|
|
867 | |
|
|
868 | #else // 4HEAP |
|
|
869 | |
|
|
870 | #define HEAP0 1 |
|
|
871 | |
|
|
872 | /* towards the root */ |
|
|
873 | void inline_speed |
|
|
874 | upheap (ANHE *heap, int k) |
|
|
875 | { |
|
|
876 | ANHE he = heap [k]; |
|
|
877 | |
|
|
878 | for (;;) |
|
|
879 | { |
|
|
880 | int p = k >> 1; |
|
|
881 | |
|
|
882 | /* maybe we could use a dummy element at heap [0]? */ |
|
|
883 | if (!p || ANHE_at (heap [p]) <= ANHE_at (he)) |
|
|
884 | break; |
|
|
885 | |
|
|
886 | heap [k] = heap [p]; |
|
|
887 | ev_active (ANHE_w (heap [k])) = k; |
|
|
888 | k = p; |
636 | } |
889 | } |
637 | |
890 | |
638 | heap [k] = w; |
891 | heap [k] = w; |
639 | ((W)heap [k])->active = k + 1; |
892 | ev_active (ANHE_w (heap [k])) = k; |
640 | |
|
|
641 | } |
893 | } |
642 | |
894 | |
|
|
895 | /* away from the root */ |
643 | void inline_speed |
896 | void inline_speed |
644 | downheap (WT *heap, int N, int k) |
897 | downheap (ANHE *heap, int N, int k) |
645 | { |
898 | { |
646 | WT w = heap [k]; |
899 | ANHE he = heap [k]; |
647 | |
900 | |
648 | while (k < (N >> 1)) |
901 | for (;;) |
649 | { |
902 | { |
650 | int j = k << 1; |
903 | int c = k << 1; |
651 | |
904 | |
652 | if (j + 1 < N && heap [j]->at > heap [j + 1]->at) |
905 | if (c > N) |
653 | ++j; |
|
|
654 | |
|
|
655 | if (w->at <= heap [j]->at) |
|
|
656 | break; |
906 | break; |
657 | |
907 | |
|
|
908 | c += c + 1 < N && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
|
|
909 | ? 1 : 0; |
|
|
910 | |
|
|
911 | if (w->at <= ANHE_at (heap [c])) |
|
|
912 | break; |
|
|
913 | |
658 | heap [k] = heap [j]; |
914 | heap [k] = heap [c]; |
659 | ((W)heap [k])->active = k + 1; |
915 | ev_active (ANHE_w (heap [k])) = k; |
|
|
916 | |
660 | k = j; |
917 | k = c; |
661 | } |
918 | } |
662 | |
919 | |
663 | heap [k] = w; |
920 | heap [k] = he; |
664 | ((W)heap [k])->active = k + 1; |
921 | ev_active (ANHE_w (he)) = k; |
665 | } |
922 | } |
|
|
923 | #endif |
666 | |
924 | |
667 | void inline_size |
925 | void inline_size |
668 | adjustheap (WT *heap, int N, int k) |
926 | adjustheap (ANHE *heap, int N, int k) |
669 | { |
927 | { |
670 | upheap (heap, k); |
928 | upheap (heap, k); |
671 | downheap (heap, N, k); |
929 | downheap (heap, N, k); |
672 | } |
930 | } |
673 | |
931 | |
674 | /*****************************************************************************/ |
932 | /*****************************************************************************/ |
675 | |
933 | |
676 | typedef struct |
934 | typedef struct |
677 | { |
935 | { |
678 | WL head; |
936 | WL head; |
679 | sig_atomic_t volatile gotsig; |
937 | EV_ATOMIC_T gotsig; |
680 | } ANSIG; |
938 | } ANSIG; |
681 | |
939 | |
682 | static ANSIG *signals; |
940 | static ANSIG *signals; |
683 | static int signalmax; |
941 | static int signalmax; |
684 | |
942 | |
685 | static int sigpipe [2]; |
943 | static EV_ATOMIC_T gotsig; |
686 | static sig_atomic_t volatile gotsig; |
|
|
687 | static ev_io sigev; |
|
|
688 | |
944 | |
689 | void inline_size |
945 | void inline_size |
690 | signals_init (ANSIG *base, int count) |
946 | signals_init (ANSIG *base, int count) |
691 | { |
947 | { |
692 | while (count--) |
948 | while (count--) |
… | |
… | |
696 | |
952 | |
697 | ++base; |
953 | ++base; |
698 | } |
954 | } |
699 | } |
955 | } |
700 | |
956 | |
701 | static void |
957 | /*****************************************************************************/ |
702 | sighandler (int signum) |
|
|
703 | { |
|
|
704 | #if _WIN32 |
|
|
705 | signal (signum, sighandler); |
|
|
706 | #endif |
|
|
707 | |
958 | |
708 | signals [signum - 1].gotsig = 1; |
|
|
709 | |
|
|
710 | if (!gotsig) |
|
|
711 | { |
|
|
712 | int old_errno = errno; |
|
|
713 | gotsig = 1; |
|
|
714 | write (sigpipe [1], &signum, 1); |
|
|
715 | errno = old_errno; |
|
|
716 | } |
|
|
717 | } |
|
|
718 | |
|
|
719 | void noinline |
|
|
720 | ev_feed_signal_event (EV_P_ int signum) |
|
|
721 | { |
|
|
722 | WL w; |
|
|
723 | |
|
|
724 | #if EV_MULTIPLICITY |
|
|
725 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
726 | #endif |
|
|
727 | |
|
|
728 | --signum; |
|
|
729 | |
|
|
730 | if (signum < 0 || signum >= signalmax) |
|
|
731 | return; |
|
|
732 | |
|
|
733 | signals [signum].gotsig = 0; |
|
|
734 | |
|
|
735 | for (w = signals [signum].head; w; w = w->next) |
|
|
736 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
737 | } |
|
|
738 | |
|
|
739 | static void |
|
|
740 | sigcb (EV_P_ ev_io *iow, int revents) |
|
|
741 | { |
|
|
742 | int signum; |
|
|
743 | |
|
|
744 | read (sigpipe [0], &revents, 1); |
|
|
745 | gotsig = 0; |
|
|
746 | |
|
|
747 | for (signum = signalmax; signum--; ) |
|
|
748 | if (signals [signum].gotsig) |
|
|
749 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
750 | } |
|
|
751 | |
|
|
752 | void inline_size |
959 | void inline_speed |
753 | fd_intern (int fd) |
960 | fd_intern (int fd) |
754 | { |
961 | { |
755 | #ifdef _WIN32 |
962 | #ifdef _WIN32 |
756 | int arg = 1; |
963 | int arg = 1; |
757 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
964 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
… | |
… | |
760 | fcntl (fd, F_SETFL, O_NONBLOCK); |
967 | fcntl (fd, F_SETFL, O_NONBLOCK); |
761 | #endif |
968 | #endif |
762 | } |
969 | } |
763 | |
970 | |
764 | static void noinline |
971 | static void noinline |
765 | siginit (EV_P) |
972 | evpipe_init (EV_P) |
766 | { |
973 | { |
|
|
974 | if (!ev_is_active (&pipeev)) |
|
|
975 | { |
|
|
976 | #if EV_USE_EVENTFD |
|
|
977 | if ((evfd = eventfd (0, 0)) >= 0) |
|
|
978 | { |
|
|
979 | evpipe [0] = -1; |
|
|
980 | fd_intern (evfd); |
|
|
981 | ev_io_set (&pipeev, evfd, EV_READ); |
|
|
982 | } |
|
|
983 | else |
|
|
984 | #endif |
|
|
985 | { |
|
|
986 | while (pipe (evpipe)) |
|
|
987 | syserr ("(libev) error creating signal/async pipe"); |
|
|
988 | |
767 | fd_intern (sigpipe [0]); |
989 | fd_intern (evpipe [0]); |
768 | fd_intern (sigpipe [1]); |
990 | fd_intern (evpipe [1]); |
|
|
991 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
|
|
992 | } |
769 | |
993 | |
770 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
|
|
771 | ev_io_start (EV_A_ &sigev); |
994 | ev_io_start (EV_A_ &pipeev); |
772 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
995 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
996 | } |
|
|
997 | } |
|
|
998 | |
|
|
999 | void inline_size |
|
|
1000 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1001 | { |
|
|
1002 | if (!*flag) |
|
|
1003 | { |
|
|
1004 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1005 | |
|
|
1006 | *flag = 1; |
|
|
1007 | |
|
|
1008 | #if EV_USE_EVENTFD |
|
|
1009 | if (evfd >= 0) |
|
|
1010 | { |
|
|
1011 | uint64_t counter = 1; |
|
|
1012 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
1013 | } |
|
|
1014 | else |
|
|
1015 | #endif |
|
|
1016 | write (evpipe [1], &old_errno, 1); |
|
|
1017 | |
|
|
1018 | errno = old_errno; |
|
|
1019 | } |
|
|
1020 | } |
|
|
1021 | |
|
|
1022 | static void |
|
|
1023 | pipecb (EV_P_ ev_io *iow, int revents) |
|
|
1024 | { |
|
|
1025 | #if EV_USE_EVENTFD |
|
|
1026 | if (evfd >= 0) |
|
|
1027 | { |
|
|
1028 | uint64_t counter; |
|
|
1029 | read (evfd, &counter, sizeof (uint64_t)); |
|
|
1030 | } |
|
|
1031 | else |
|
|
1032 | #endif |
|
|
1033 | { |
|
|
1034 | char dummy; |
|
|
1035 | read (evpipe [0], &dummy, 1); |
|
|
1036 | } |
|
|
1037 | |
|
|
1038 | if (gotsig && ev_is_default_loop (EV_A)) |
|
|
1039 | { |
|
|
1040 | int signum; |
|
|
1041 | gotsig = 0; |
|
|
1042 | |
|
|
1043 | for (signum = signalmax; signum--; ) |
|
|
1044 | if (signals [signum].gotsig) |
|
|
1045 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
1046 | } |
|
|
1047 | |
|
|
1048 | #if EV_ASYNC_ENABLE |
|
|
1049 | if (gotasync) |
|
|
1050 | { |
|
|
1051 | int i; |
|
|
1052 | gotasync = 0; |
|
|
1053 | |
|
|
1054 | for (i = asynccnt; i--; ) |
|
|
1055 | if (asyncs [i]->sent) |
|
|
1056 | { |
|
|
1057 | asyncs [i]->sent = 0; |
|
|
1058 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
|
|
1059 | } |
|
|
1060 | } |
|
|
1061 | #endif |
773 | } |
1062 | } |
774 | |
1063 | |
775 | /*****************************************************************************/ |
1064 | /*****************************************************************************/ |
776 | |
1065 | |
|
|
1066 | static void |
|
|
1067 | ev_sighandler (int signum) |
|
|
1068 | { |
|
|
1069 | #if EV_MULTIPLICITY |
|
|
1070 | struct ev_loop *loop = &default_loop_struct; |
|
|
1071 | #endif |
|
|
1072 | |
|
|
1073 | #if _WIN32 |
|
|
1074 | signal (signum, ev_sighandler); |
|
|
1075 | #endif |
|
|
1076 | |
|
|
1077 | signals [signum - 1].gotsig = 1; |
|
|
1078 | evpipe_write (EV_A_ &gotsig); |
|
|
1079 | } |
|
|
1080 | |
|
|
1081 | void noinline |
|
|
1082 | ev_feed_signal_event (EV_P_ int signum) |
|
|
1083 | { |
|
|
1084 | WL w; |
|
|
1085 | |
|
|
1086 | #if EV_MULTIPLICITY |
|
|
1087 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1088 | #endif |
|
|
1089 | |
|
|
1090 | --signum; |
|
|
1091 | |
|
|
1092 | if (signum < 0 || signum >= signalmax) |
|
|
1093 | return; |
|
|
1094 | |
|
|
1095 | signals [signum].gotsig = 0; |
|
|
1096 | |
|
|
1097 | for (w = signals [signum].head; w; w = w->next) |
|
|
1098 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
1099 | } |
|
|
1100 | |
|
|
1101 | /*****************************************************************************/ |
|
|
1102 | |
777 | static ev_child *childs [EV_PID_HASHSIZE]; |
1103 | static WL childs [EV_PID_HASHSIZE]; |
778 | |
1104 | |
779 | #ifndef _WIN32 |
1105 | #ifndef _WIN32 |
780 | |
1106 | |
781 | static ev_signal childev; |
1107 | static ev_signal childev; |
782 | |
1108 | |
|
|
1109 | #ifndef WIFCONTINUED |
|
|
1110 | # define WIFCONTINUED(status) 0 |
|
|
1111 | #endif |
|
|
1112 | |
783 | void inline_speed |
1113 | void inline_speed |
784 | child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) |
1114 | child_reap (EV_P_ int chain, int pid, int status) |
785 | { |
1115 | { |
786 | ev_child *w; |
1116 | ev_child *w; |
|
|
1117 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
787 | |
1118 | |
788 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1119 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1120 | { |
789 | if (w->pid == pid || !w->pid) |
1121 | if ((w->pid == pid || !w->pid) |
|
|
1122 | && (!traced || (w->flags & 1))) |
790 | { |
1123 | { |
791 | ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */ |
1124 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
792 | w->rpid = pid; |
1125 | w->rpid = pid; |
793 | w->rstatus = status; |
1126 | w->rstatus = status; |
794 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
1127 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
795 | } |
1128 | } |
|
|
1129 | } |
796 | } |
1130 | } |
797 | |
1131 | |
798 | #ifndef WCONTINUED |
1132 | #ifndef WCONTINUED |
799 | # define WCONTINUED 0 |
1133 | # define WCONTINUED 0 |
800 | #endif |
1134 | #endif |
… | |
… | |
809 | if (!WCONTINUED |
1143 | if (!WCONTINUED |
810 | || errno != EINVAL |
1144 | || errno != EINVAL |
811 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
1145 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
812 | return; |
1146 | return; |
813 | |
1147 | |
814 | /* make sure we are called again until all childs have been reaped */ |
1148 | /* make sure we are called again until all children have been reaped */ |
815 | /* we need to do it this way so that the callback gets called before we continue */ |
1149 | /* we need to do it this way so that the callback gets called before we continue */ |
816 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1150 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
817 | |
1151 | |
818 | child_reap (EV_A_ sw, pid, pid, status); |
1152 | child_reap (EV_A_ pid, pid, status); |
819 | if (EV_PID_HASHSIZE > 1) |
1153 | if (EV_PID_HASHSIZE > 1) |
820 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1154 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
821 | } |
1155 | } |
822 | |
1156 | |
823 | #endif |
1157 | #endif |
824 | |
1158 | |
825 | /*****************************************************************************/ |
1159 | /*****************************************************************************/ |
… | |
… | |
897 | } |
1231 | } |
898 | |
1232 | |
899 | unsigned int |
1233 | unsigned int |
900 | ev_embeddable_backends (void) |
1234 | ev_embeddable_backends (void) |
901 | { |
1235 | { |
902 | return EVBACKEND_EPOLL |
1236 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
903 | | EVBACKEND_KQUEUE |
1237 | |
904 | | EVBACKEND_PORT; |
1238 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
|
|
1239 | /* please fix it and tell me how to detect the fix */ |
|
|
1240 | flags &= ~EVBACKEND_EPOLL; |
|
|
1241 | |
|
|
1242 | return flags; |
905 | } |
1243 | } |
906 | |
1244 | |
907 | unsigned int |
1245 | unsigned int |
908 | ev_backend (EV_P) |
1246 | ev_backend (EV_P) |
909 | { |
1247 | { |
… | |
… | |
912 | |
1250 | |
913 | unsigned int |
1251 | unsigned int |
914 | ev_loop_count (EV_P) |
1252 | ev_loop_count (EV_P) |
915 | { |
1253 | { |
916 | return loop_count; |
1254 | return loop_count; |
|
|
1255 | } |
|
|
1256 | |
|
|
1257 | void |
|
|
1258 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1259 | { |
|
|
1260 | io_blocktime = interval; |
|
|
1261 | } |
|
|
1262 | |
|
|
1263 | void |
|
|
1264 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1265 | { |
|
|
1266 | timeout_blocktime = interval; |
917 | } |
1267 | } |
918 | |
1268 | |
919 | static void noinline |
1269 | static void noinline |
920 | loop_init (EV_P_ unsigned int flags) |
1270 | loop_init (EV_P_ unsigned int flags) |
921 | { |
1271 | { |
… | |
… | |
927 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1277 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
928 | have_monotonic = 1; |
1278 | have_monotonic = 1; |
929 | } |
1279 | } |
930 | #endif |
1280 | #endif |
931 | |
1281 | |
932 | ev_rt_now = ev_time (); |
1282 | ev_rt_now = ev_time (); |
933 | mn_now = get_clock (); |
1283 | mn_now = get_clock (); |
934 | now_floor = mn_now; |
1284 | now_floor = mn_now; |
935 | rtmn_diff = ev_rt_now - mn_now; |
1285 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1286 | |
|
|
1287 | io_blocktime = 0.; |
|
|
1288 | timeout_blocktime = 0.; |
|
|
1289 | backend = 0; |
|
|
1290 | backend_fd = -1; |
|
|
1291 | gotasync = 0; |
|
|
1292 | #if EV_USE_INOTIFY |
|
|
1293 | fs_fd = -2; |
|
|
1294 | #endif |
936 | |
1295 | |
937 | /* pid check not overridable via env */ |
1296 | /* pid check not overridable via env */ |
938 | #ifndef _WIN32 |
1297 | #ifndef _WIN32 |
939 | if (flags & EVFLAG_FORKCHECK) |
1298 | if (flags & EVFLAG_FORKCHECK) |
940 | curpid = getpid (); |
1299 | curpid = getpid (); |
… | |
… | |
943 | if (!(flags & EVFLAG_NOENV) |
1302 | if (!(flags & EVFLAG_NOENV) |
944 | && !enable_secure () |
1303 | && !enable_secure () |
945 | && getenv ("LIBEV_FLAGS")) |
1304 | && getenv ("LIBEV_FLAGS")) |
946 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1305 | flags = atoi (getenv ("LIBEV_FLAGS")); |
947 | |
1306 | |
948 | if (!(flags & 0x0000ffffUL)) |
1307 | if (!(flags & 0x0000ffffU)) |
949 | flags |= ev_recommended_backends (); |
1308 | flags |= ev_recommended_backends (); |
950 | |
|
|
951 | backend = 0; |
|
|
952 | backend_fd = -1; |
|
|
953 | #if EV_USE_INOTIFY |
|
|
954 | fs_fd = -2; |
|
|
955 | #endif |
|
|
956 | |
1309 | |
957 | #if EV_USE_PORT |
1310 | #if EV_USE_PORT |
958 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1311 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
959 | #endif |
1312 | #endif |
960 | #if EV_USE_KQUEUE |
1313 | #if EV_USE_KQUEUE |
… | |
… | |
968 | #endif |
1321 | #endif |
969 | #if EV_USE_SELECT |
1322 | #if EV_USE_SELECT |
970 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1323 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
971 | #endif |
1324 | #endif |
972 | |
1325 | |
973 | ev_init (&sigev, sigcb); |
1326 | ev_init (&pipeev, pipecb); |
974 | ev_set_priority (&sigev, EV_MAXPRI); |
1327 | ev_set_priority (&pipeev, EV_MAXPRI); |
975 | } |
1328 | } |
976 | } |
1329 | } |
977 | |
1330 | |
978 | static void noinline |
1331 | static void noinline |
979 | loop_destroy (EV_P) |
1332 | loop_destroy (EV_P) |
980 | { |
1333 | { |
981 | int i; |
1334 | int i; |
|
|
1335 | |
|
|
1336 | if (ev_is_active (&pipeev)) |
|
|
1337 | { |
|
|
1338 | ev_ref (EV_A); /* signal watcher */ |
|
|
1339 | ev_io_stop (EV_A_ &pipeev); |
|
|
1340 | |
|
|
1341 | #if EV_USE_EVENTFD |
|
|
1342 | if (evfd >= 0) |
|
|
1343 | close (evfd); |
|
|
1344 | #endif |
|
|
1345 | |
|
|
1346 | if (evpipe [0] >= 0) |
|
|
1347 | { |
|
|
1348 | close (evpipe [0]); |
|
|
1349 | close (evpipe [1]); |
|
|
1350 | } |
|
|
1351 | } |
982 | |
1352 | |
983 | #if EV_USE_INOTIFY |
1353 | #if EV_USE_INOTIFY |
984 | if (fs_fd >= 0) |
1354 | if (fs_fd >= 0) |
985 | close (fs_fd); |
1355 | close (fs_fd); |
986 | #endif |
1356 | #endif |
… | |
… | |
1009 | array_free (pending, [i]); |
1379 | array_free (pending, [i]); |
1010 | #if EV_IDLE_ENABLE |
1380 | #if EV_IDLE_ENABLE |
1011 | array_free (idle, [i]); |
1381 | array_free (idle, [i]); |
1012 | #endif |
1382 | #endif |
1013 | } |
1383 | } |
|
|
1384 | |
|
|
1385 | ev_free (anfds); anfdmax = 0; |
1014 | |
1386 | |
1015 | /* have to use the microsoft-never-gets-it-right macro */ |
1387 | /* have to use the microsoft-never-gets-it-right macro */ |
1016 | array_free (fdchange, EMPTY); |
1388 | array_free (fdchange, EMPTY); |
1017 | array_free (timer, EMPTY); |
1389 | array_free (timer, EMPTY); |
1018 | #if EV_PERIODIC_ENABLE |
1390 | #if EV_PERIODIC_ENABLE |
1019 | array_free (periodic, EMPTY); |
1391 | array_free (periodic, EMPTY); |
1020 | #endif |
1392 | #endif |
|
|
1393 | #if EV_FORK_ENABLE |
|
|
1394 | array_free (fork, EMPTY); |
|
|
1395 | #endif |
1021 | array_free (prepare, EMPTY); |
1396 | array_free (prepare, EMPTY); |
1022 | array_free (check, EMPTY); |
1397 | array_free (check, EMPTY); |
|
|
1398 | #if EV_ASYNC_ENABLE |
|
|
1399 | array_free (async, EMPTY); |
|
|
1400 | #endif |
1023 | |
1401 | |
1024 | backend = 0; |
1402 | backend = 0; |
1025 | } |
1403 | } |
1026 | |
1404 | |
|
|
1405 | #if EV_USE_INOTIFY |
1027 | void inline_size infy_fork (EV_P); |
1406 | void inline_size infy_fork (EV_P); |
|
|
1407 | #endif |
1028 | |
1408 | |
1029 | void inline_size |
1409 | void inline_size |
1030 | loop_fork (EV_P) |
1410 | loop_fork (EV_P) |
1031 | { |
1411 | { |
1032 | #if EV_USE_PORT |
1412 | #if EV_USE_PORT |
… | |
… | |
1040 | #endif |
1420 | #endif |
1041 | #if EV_USE_INOTIFY |
1421 | #if EV_USE_INOTIFY |
1042 | infy_fork (EV_A); |
1422 | infy_fork (EV_A); |
1043 | #endif |
1423 | #endif |
1044 | |
1424 | |
1045 | if (ev_is_active (&sigev)) |
1425 | if (ev_is_active (&pipeev)) |
1046 | { |
1426 | { |
1047 | /* default loop */ |
1427 | /* this "locks" the handlers against writing to the pipe */ |
|
|
1428 | /* while we modify the fd vars */ |
|
|
1429 | gotsig = 1; |
|
|
1430 | #if EV_ASYNC_ENABLE |
|
|
1431 | gotasync = 1; |
|
|
1432 | #endif |
1048 | |
1433 | |
1049 | ev_ref (EV_A); |
1434 | ev_ref (EV_A); |
1050 | ev_io_stop (EV_A_ &sigev); |
1435 | ev_io_stop (EV_A_ &pipeev); |
|
|
1436 | |
|
|
1437 | #if EV_USE_EVENTFD |
|
|
1438 | if (evfd >= 0) |
|
|
1439 | close (evfd); |
|
|
1440 | #endif |
|
|
1441 | |
|
|
1442 | if (evpipe [0] >= 0) |
|
|
1443 | { |
1051 | close (sigpipe [0]); |
1444 | close (evpipe [0]); |
1052 | close (sigpipe [1]); |
1445 | close (evpipe [1]); |
|
|
1446 | } |
1053 | |
1447 | |
1054 | while (pipe (sigpipe)) |
|
|
1055 | syserr ("(libev) error creating pipe"); |
|
|
1056 | |
|
|
1057 | siginit (EV_A); |
1448 | evpipe_init (EV_A); |
|
|
1449 | /* now iterate over everything, in case we missed something */ |
|
|
1450 | pipecb (EV_A_ &pipeev, EV_READ); |
1058 | } |
1451 | } |
1059 | |
1452 | |
1060 | postfork = 0; |
1453 | postfork = 0; |
1061 | } |
1454 | } |
1062 | |
1455 | |
… | |
… | |
1084 | } |
1477 | } |
1085 | |
1478 | |
1086 | void |
1479 | void |
1087 | ev_loop_fork (EV_P) |
1480 | ev_loop_fork (EV_P) |
1088 | { |
1481 | { |
1089 | postfork = 1; |
1482 | postfork = 1; /* must be in line with ev_default_fork */ |
1090 | } |
1483 | } |
1091 | |
|
|
1092 | #endif |
1484 | #endif |
1093 | |
1485 | |
1094 | #if EV_MULTIPLICITY |
1486 | #if EV_MULTIPLICITY |
1095 | struct ev_loop * |
1487 | struct ev_loop * |
1096 | ev_default_loop_init (unsigned int flags) |
1488 | ev_default_loop_init (unsigned int flags) |
1097 | #else |
1489 | #else |
1098 | int |
1490 | int |
1099 | ev_default_loop (unsigned int flags) |
1491 | ev_default_loop (unsigned int flags) |
1100 | #endif |
1492 | #endif |
1101 | { |
1493 | { |
1102 | if (sigpipe [0] == sigpipe [1]) |
|
|
1103 | if (pipe (sigpipe)) |
|
|
1104 | return 0; |
|
|
1105 | |
|
|
1106 | if (!ev_default_loop_ptr) |
1494 | if (!ev_default_loop_ptr) |
1107 | { |
1495 | { |
1108 | #if EV_MULTIPLICITY |
1496 | #if EV_MULTIPLICITY |
1109 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1497 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1110 | #else |
1498 | #else |
… | |
… | |
1113 | |
1501 | |
1114 | loop_init (EV_A_ flags); |
1502 | loop_init (EV_A_ flags); |
1115 | |
1503 | |
1116 | if (ev_backend (EV_A)) |
1504 | if (ev_backend (EV_A)) |
1117 | { |
1505 | { |
1118 | siginit (EV_A); |
|
|
1119 | |
|
|
1120 | #ifndef _WIN32 |
1506 | #ifndef _WIN32 |
1121 | ev_signal_init (&childev, childcb, SIGCHLD); |
1507 | ev_signal_init (&childev, childcb, SIGCHLD); |
1122 | ev_set_priority (&childev, EV_MAXPRI); |
1508 | ev_set_priority (&childev, EV_MAXPRI); |
1123 | ev_signal_start (EV_A_ &childev); |
1509 | ev_signal_start (EV_A_ &childev); |
1124 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1510 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
… | |
… | |
1141 | #ifndef _WIN32 |
1527 | #ifndef _WIN32 |
1142 | ev_ref (EV_A); /* child watcher */ |
1528 | ev_ref (EV_A); /* child watcher */ |
1143 | ev_signal_stop (EV_A_ &childev); |
1529 | ev_signal_stop (EV_A_ &childev); |
1144 | #endif |
1530 | #endif |
1145 | |
1531 | |
1146 | ev_ref (EV_A); /* signal watcher */ |
|
|
1147 | ev_io_stop (EV_A_ &sigev); |
|
|
1148 | |
|
|
1149 | close (sigpipe [0]); sigpipe [0] = 0; |
|
|
1150 | close (sigpipe [1]); sigpipe [1] = 0; |
|
|
1151 | |
|
|
1152 | loop_destroy (EV_A); |
1532 | loop_destroy (EV_A); |
1153 | } |
1533 | } |
1154 | |
1534 | |
1155 | void |
1535 | void |
1156 | ev_default_fork (void) |
1536 | ev_default_fork (void) |
… | |
… | |
1158 | #if EV_MULTIPLICITY |
1538 | #if EV_MULTIPLICITY |
1159 | struct ev_loop *loop = ev_default_loop_ptr; |
1539 | struct ev_loop *loop = ev_default_loop_ptr; |
1160 | #endif |
1540 | #endif |
1161 | |
1541 | |
1162 | if (backend) |
1542 | if (backend) |
1163 | postfork = 1; |
1543 | postfork = 1; /* must be in line with ev_loop_fork */ |
1164 | } |
1544 | } |
1165 | |
1545 | |
1166 | /*****************************************************************************/ |
1546 | /*****************************************************************************/ |
|
|
1547 | |
|
|
1548 | void |
|
|
1549 | ev_invoke (EV_P_ void *w, int revents) |
|
|
1550 | { |
|
|
1551 | EV_CB_INVOKE ((W)w, revents); |
|
|
1552 | } |
1167 | |
1553 | |
1168 | void inline_speed |
1554 | void inline_speed |
1169 | call_pending (EV_P) |
1555 | call_pending (EV_P) |
1170 | { |
1556 | { |
1171 | int pri; |
1557 | int pri; |
… | |
… | |
1183 | EV_CB_INVOKE (p->w, p->events); |
1569 | EV_CB_INVOKE (p->w, p->events); |
1184 | } |
1570 | } |
1185 | } |
1571 | } |
1186 | } |
1572 | } |
1187 | |
1573 | |
1188 | void inline_size |
|
|
1189 | timers_reify (EV_P) |
|
|
1190 | { |
|
|
1191 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
|
|
1192 | { |
|
|
1193 | ev_timer *w = timers [0]; |
|
|
1194 | |
|
|
1195 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1196 | |
|
|
1197 | /* first reschedule or stop timer */ |
|
|
1198 | if (w->repeat) |
|
|
1199 | { |
|
|
1200 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1201 | |
|
|
1202 | ((WT)w)->at += w->repeat; |
|
|
1203 | if (((WT)w)->at < mn_now) |
|
|
1204 | ((WT)w)->at = mn_now; |
|
|
1205 | |
|
|
1206 | downheap ((WT *)timers, timercnt, 0); |
|
|
1207 | } |
|
|
1208 | else |
|
|
1209 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1210 | |
|
|
1211 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
|
|
1212 | } |
|
|
1213 | } |
|
|
1214 | |
|
|
1215 | #if EV_PERIODIC_ENABLE |
|
|
1216 | void inline_size |
|
|
1217 | periodics_reify (EV_P) |
|
|
1218 | { |
|
|
1219 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
|
|
1220 | { |
|
|
1221 | ev_periodic *w = periodics [0]; |
|
|
1222 | |
|
|
1223 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
1224 | |
|
|
1225 | /* first reschedule or stop timer */ |
|
|
1226 | if (w->reschedule_cb) |
|
|
1227 | { |
|
|
1228 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); |
|
|
1229 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
|
|
1230 | downheap ((WT *)periodics, periodiccnt, 0); |
|
|
1231 | } |
|
|
1232 | else if (w->interval) |
|
|
1233 | { |
|
|
1234 | ((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
|
|
1235 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
|
|
1236 | downheap ((WT *)periodics, periodiccnt, 0); |
|
|
1237 | } |
|
|
1238 | else |
|
|
1239 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1240 | |
|
|
1241 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
|
|
1242 | } |
|
|
1243 | } |
|
|
1244 | |
|
|
1245 | static void noinline |
|
|
1246 | periodics_reschedule (EV_P) |
|
|
1247 | { |
|
|
1248 | int i; |
|
|
1249 | |
|
|
1250 | /* adjust periodics after time jump */ |
|
|
1251 | for (i = 0; i < periodiccnt; ++i) |
|
|
1252 | { |
|
|
1253 | ev_periodic *w = periodics [i]; |
|
|
1254 | |
|
|
1255 | if (w->reschedule_cb) |
|
|
1256 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
|
|
1257 | else if (w->interval) |
|
|
1258 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
|
|
1259 | } |
|
|
1260 | |
|
|
1261 | /* now rebuild the heap */ |
|
|
1262 | for (i = periodiccnt >> 1; i--; ) |
|
|
1263 | downheap ((WT *)periodics, periodiccnt, i); |
|
|
1264 | } |
|
|
1265 | #endif |
|
|
1266 | |
|
|
1267 | #if EV_IDLE_ENABLE |
1574 | #if EV_IDLE_ENABLE |
1268 | void inline_size |
1575 | void inline_size |
1269 | idle_reify (EV_P) |
1576 | idle_reify (EV_P) |
1270 | { |
1577 | { |
1271 | if (expect_false (!idleall)) |
1578 | if (expect_false (idleall)) |
1272 | { |
1579 | { |
1273 | int pri; |
1580 | int pri; |
1274 | |
1581 | |
1275 | for (pri = NUMPRI; pri--; ) |
1582 | for (pri = NUMPRI; pri--; ) |
1276 | { |
1583 | { |
… | |
… | |
1285 | } |
1592 | } |
1286 | } |
1593 | } |
1287 | } |
1594 | } |
1288 | #endif |
1595 | #endif |
1289 | |
1596 | |
1290 | int inline_size |
1597 | void inline_size |
1291 | time_update_monotonic (EV_P) |
1598 | timers_reify (EV_P) |
1292 | { |
1599 | { |
|
|
1600 | while (timercnt && ANHE_at (timers [HEAP0]) <= mn_now) |
|
|
1601 | { |
|
|
1602 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
|
|
1603 | |
|
|
1604 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1605 | |
|
|
1606 | /* first reschedule or stop timer */ |
|
|
1607 | if (w->repeat) |
|
|
1608 | { |
|
|
1609 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1610 | |
|
|
1611 | ev_at (w) += w->repeat; |
|
|
1612 | if (ev_at (w) < mn_now) |
|
|
1613 | ev_at (w) = mn_now; |
|
|
1614 | |
|
|
1615 | ANHE_at_set (timers [HEAP0]); |
|
|
1616 | downheap (timers, timercnt, HEAP0); |
|
|
1617 | } |
|
|
1618 | else |
|
|
1619 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1620 | |
|
|
1621 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
|
|
1622 | } |
|
|
1623 | } |
|
|
1624 | |
|
|
1625 | #if EV_PERIODIC_ENABLE |
|
|
1626 | void inline_size |
|
|
1627 | periodics_reify (EV_P) |
|
|
1628 | { |
|
|
1629 | while (periodiccnt && ANHE_at (periodics [HEAP0]) <= ev_rt_now) |
|
|
1630 | { |
|
|
1631 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
|
|
1632 | |
|
|
1633 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
1634 | |
|
|
1635 | /* first reschedule or stop timer */ |
|
|
1636 | if (w->reschedule_cb) |
|
|
1637 | { |
|
|
1638 | ev_at (w) = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); |
|
|
1639 | assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) > ev_rt_now)); |
|
|
1640 | ANHE_at_set (periodics [HEAP0]); |
|
|
1641 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1642 | } |
|
|
1643 | else if (w->interval) |
|
|
1644 | { |
|
|
1645 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1646 | if (ev_at (w) - ev_rt_now <= TIME_EPSILON) ev_at (w) += w->interval; |
|
|
1647 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ev_at (w) > ev_rt_now)); |
|
|
1648 | ANHE_at_set (periodics [HEAP0]); |
|
|
1649 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1650 | } |
|
|
1651 | else |
|
|
1652 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1653 | |
|
|
1654 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
|
|
1655 | } |
|
|
1656 | } |
|
|
1657 | |
|
|
1658 | static void noinline |
|
|
1659 | periodics_reschedule (EV_P) |
|
|
1660 | { |
|
|
1661 | int i; |
|
|
1662 | |
|
|
1663 | /* adjust periodics after time jump */ |
|
|
1664 | for (i = HEAP0; i < periodiccnt + HEAP0; ++i) |
|
|
1665 | { |
|
|
1666 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
|
|
1667 | |
|
|
1668 | if (w->reschedule_cb) |
|
|
1669 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
1670 | else if (w->interval) |
|
|
1671 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1672 | |
|
|
1673 | ANHE_at_set (periodics [i]); |
|
|
1674 | } |
|
|
1675 | |
|
|
1676 | /* now rebuild the heap, this for the 2-heap, inefficient for the 4-heap, but correct */ |
|
|
1677 | for (i = periodiccnt >> 1; --i; ) |
|
|
1678 | downheap (periodics, periodiccnt, i + HEAP0); |
|
|
1679 | } |
|
|
1680 | #endif |
|
|
1681 | |
|
|
1682 | void inline_speed |
|
|
1683 | time_update (EV_P_ ev_tstamp max_block) |
|
|
1684 | { |
|
|
1685 | int i; |
|
|
1686 | |
|
|
1687 | #if EV_USE_MONOTONIC |
|
|
1688 | if (expect_true (have_monotonic)) |
|
|
1689 | { |
|
|
1690 | ev_tstamp odiff = rtmn_diff; |
|
|
1691 | |
1293 | mn_now = get_clock (); |
1692 | mn_now = get_clock (); |
1294 | |
1693 | |
|
|
1694 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
|
|
1695 | /* interpolate in the meantime */ |
1295 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1696 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1296 | { |
1697 | { |
1297 | ev_rt_now = rtmn_diff + mn_now; |
1698 | ev_rt_now = rtmn_diff + mn_now; |
1298 | return 0; |
1699 | return; |
1299 | } |
1700 | } |
1300 | else |
1701 | |
1301 | { |
|
|
1302 | now_floor = mn_now; |
1702 | now_floor = mn_now; |
1303 | ev_rt_now = ev_time (); |
1703 | ev_rt_now = ev_time (); |
1304 | return 1; |
|
|
1305 | } |
|
|
1306 | } |
|
|
1307 | |
1704 | |
1308 | void inline_size |
1705 | /* loop a few times, before making important decisions. |
1309 | time_update (EV_P) |
1706 | * on the choice of "4": one iteration isn't enough, |
1310 | { |
1707 | * in case we get preempted during the calls to |
1311 | int i; |
1708 | * ev_time and get_clock. a second call is almost guaranteed |
1312 | |
1709 | * to succeed in that case, though. and looping a few more times |
1313 | #if EV_USE_MONOTONIC |
1710 | * doesn't hurt either as we only do this on time-jumps or |
1314 | if (expect_true (have_monotonic)) |
1711 | * in the unlikely event of having been preempted here. |
1315 | { |
1712 | */ |
1316 | if (time_update_monotonic (EV_A)) |
1713 | for (i = 4; --i; ) |
1317 | { |
1714 | { |
1318 | ev_tstamp odiff = rtmn_diff; |
|
|
1319 | |
|
|
1320 | /* loop a few times, before making important decisions. |
|
|
1321 | * on the choice of "4": one iteration isn't enough, |
|
|
1322 | * in case we get preempted during the calls to |
|
|
1323 | * ev_time and get_clock. a second call is almost guaranteed |
|
|
1324 | * to succeed in that case, though. and looping a few more times |
|
|
1325 | * doesn't hurt either as we only do this on time-jumps or |
|
|
1326 | * in the unlikely event of having been preempted here. |
|
|
1327 | */ |
|
|
1328 | for (i = 4; --i; ) |
|
|
1329 | { |
|
|
1330 | rtmn_diff = ev_rt_now - mn_now; |
1715 | rtmn_diff = ev_rt_now - mn_now; |
1331 | |
1716 | |
1332 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1717 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
1333 | return; /* all is well */ |
1718 | return; /* all is well */ |
1334 | |
1719 | |
1335 | ev_rt_now = ev_time (); |
1720 | ev_rt_now = ev_time (); |
1336 | mn_now = get_clock (); |
1721 | mn_now = get_clock (); |
1337 | now_floor = mn_now; |
1722 | now_floor = mn_now; |
1338 | } |
1723 | } |
1339 | |
1724 | |
1340 | # if EV_PERIODIC_ENABLE |
1725 | # if EV_PERIODIC_ENABLE |
1341 | periodics_reschedule (EV_A); |
1726 | periodics_reschedule (EV_A); |
1342 | # endif |
1727 | # endif |
1343 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
1728 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
1344 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1729 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1345 | } |
|
|
1346 | } |
1730 | } |
1347 | else |
1731 | else |
1348 | #endif |
1732 | #endif |
1349 | { |
1733 | { |
1350 | ev_rt_now = ev_time (); |
1734 | ev_rt_now = ev_time (); |
1351 | |
1735 | |
1352 | if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
1736 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
1353 | { |
1737 | { |
1354 | #if EV_PERIODIC_ENABLE |
1738 | #if EV_PERIODIC_ENABLE |
1355 | periodics_reschedule (EV_A); |
1739 | periodics_reschedule (EV_A); |
1356 | #endif |
1740 | #endif |
1357 | |
|
|
1358 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
1741 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
1359 | for (i = 0; i < timercnt; ++i) |
1742 | for (i = 0; i < timercnt; ++i) |
|
|
1743 | { |
|
|
1744 | ANHE *he = timers + i + HEAP0; |
1360 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
1745 | ANHE_w (*he)->at += ev_rt_now - mn_now; |
|
|
1746 | ANHE_at_set (*he); |
|
|
1747 | } |
1361 | } |
1748 | } |
1362 | |
1749 | |
1363 | mn_now = ev_rt_now; |
1750 | mn_now = ev_rt_now; |
1364 | } |
1751 | } |
1365 | } |
1752 | } |
… | |
… | |
1379 | static int loop_done; |
1766 | static int loop_done; |
1380 | |
1767 | |
1381 | void |
1768 | void |
1382 | ev_loop (EV_P_ int flags) |
1769 | ev_loop (EV_P_ int flags) |
1383 | { |
1770 | { |
1384 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) |
1771 | loop_done = EVUNLOOP_CANCEL; |
1385 | ? EVUNLOOP_ONE |
|
|
1386 | : EVUNLOOP_CANCEL; |
|
|
1387 | |
1772 | |
1388 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
1773 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
1389 | |
1774 | |
1390 | do |
1775 | do |
1391 | { |
1776 | { |
… | |
… | |
1406 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
1791 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
1407 | call_pending (EV_A); |
1792 | call_pending (EV_A); |
1408 | } |
1793 | } |
1409 | #endif |
1794 | #endif |
1410 | |
1795 | |
1411 | /* queue check watchers (and execute them) */ |
1796 | /* queue prepare watchers (and execute them) */ |
1412 | if (expect_false (preparecnt)) |
1797 | if (expect_false (preparecnt)) |
1413 | { |
1798 | { |
1414 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1799 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1415 | call_pending (EV_A); |
1800 | call_pending (EV_A); |
1416 | } |
1801 | } |
… | |
… | |
1425 | /* update fd-related kernel structures */ |
1810 | /* update fd-related kernel structures */ |
1426 | fd_reify (EV_A); |
1811 | fd_reify (EV_A); |
1427 | |
1812 | |
1428 | /* calculate blocking time */ |
1813 | /* calculate blocking time */ |
1429 | { |
1814 | { |
1430 | ev_tstamp block; |
1815 | ev_tstamp waittime = 0.; |
|
|
1816 | ev_tstamp sleeptime = 0.; |
1431 | |
1817 | |
1432 | if (expect_false (flags & EVLOOP_NONBLOCK || idleall || !activecnt)) |
1818 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
1433 | block = 0.; /* do not block at all */ |
|
|
1434 | else |
|
|
1435 | { |
1819 | { |
1436 | /* update time to cancel out callback processing overhead */ |
1820 | /* update time to cancel out callback processing overhead */ |
1437 | #if EV_USE_MONOTONIC |
|
|
1438 | if (expect_true (have_monotonic)) |
|
|
1439 | time_update_monotonic (EV_A); |
1821 | time_update (EV_A_ 1e100); |
1440 | else |
|
|
1441 | #endif |
|
|
1442 | { |
|
|
1443 | ev_rt_now = ev_time (); |
|
|
1444 | mn_now = ev_rt_now; |
|
|
1445 | } |
|
|
1446 | |
1822 | |
1447 | block = MAX_BLOCKTIME; |
1823 | waittime = MAX_BLOCKTIME; |
1448 | |
1824 | |
1449 | if (timercnt) |
1825 | if (timercnt) |
1450 | { |
1826 | { |
1451 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
1827 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
1452 | if (block > to) block = to; |
1828 | if (waittime > to) waittime = to; |
1453 | } |
1829 | } |
1454 | |
1830 | |
1455 | #if EV_PERIODIC_ENABLE |
1831 | #if EV_PERIODIC_ENABLE |
1456 | if (periodiccnt) |
1832 | if (periodiccnt) |
1457 | { |
1833 | { |
1458 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
1834 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
1459 | if (block > to) block = to; |
1835 | if (waittime > to) waittime = to; |
1460 | } |
1836 | } |
1461 | #endif |
1837 | #endif |
1462 | |
1838 | |
1463 | if (expect_false (block < 0.)) block = 0.; |
1839 | if (expect_false (waittime < timeout_blocktime)) |
|
|
1840 | waittime = timeout_blocktime; |
|
|
1841 | |
|
|
1842 | sleeptime = waittime - backend_fudge; |
|
|
1843 | |
|
|
1844 | if (expect_true (sleeptime > io_blocktime)) |
|
|
1845 | sleeptime = io_blocktime; |
|
|
1846 | |
|
|
1847 | if (sleeptime) |
|
|
1848 | { |
|
|
1849 | ev_sleep (sleeptime); |
|
|
1850 | waittime -= sleeptime; |
|
|
1851 | } |
1464 | } |
1852 | } |
1465 | |
1853 | |
1466 | ++loop_count; |
1854 | ++loop_count; |
1467 | backend_poll (EV_A_ block); |
1855 | backend_poll (EV_A_ waittime); |
|
|
1856 | |
|
|
1857 | /* update ev_rt_now, do magic */ |
|
|
1858 | time_update (EV_A_ waittime + sleeptime); |
1468 | } |
1859 | } |
1469 | |
|
|
1470 | /* update ev_rt_now, do magic */ |
|
|
1471 | time_update (EV_A); |
|
|
1472 | |
1860 | |
1473 | /* queue pending timers and reschedule them */ |
1861 | /* queue pending timers and reschedule them */ |
1474 | timers_reify (EV_A); /* relative timers called last */ |
1862 | timers_reify (EV_A); /* relative timers called last */ |
1475 | #if EV_PERIODIC_ENABLE |
1863 | #if EV_PERIODIC_ENABLE |
1476 | periodics_reify (EV_A); /* absolute timers called first */ |
1864 | periodics_reify (EV_A); /* absolute timers called first */ |
… | |
… | |
1484 | /* queue check watchers, to be executed first */ |
1872 | /* queue check watchers, to be executed first */ |
1485 | if (expect_false (checkcnt)) |
1873 | if (expect_false (checkcnt)) |
1486 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1874 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1487 | |
1875 | |
1488 | call_pending (EV_A); |
1876 | call_pending (EV_A); |
1489 | |
|
|
1490 | } |
1877 | } |
1491 | while (expect_true (activecnt && !loop_done)); |
1878 | while (expect_true ( |
|
|
1879 | activecnt |
|
|
1880 | && !loop_done |
|
|
1881 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
|
|
1882 | )); |
1492 | |
1883 | |
1493 | if (loop_done == EVUNLOOP_ONE) |
1884 | if (loop_done == EVUNLOOP_ONE) |
1494 | loop_done = EVUNLOOP_CANCEL; |
1885 | loop_done = EVUNLOOP_CANCEL; |
1495 | } |
1886 | } |
1496 | |
1887 | |
… | |
… | |
1523 | head = &(*head)->next; |
1914 | head = &(*head)->next; |
1524 | } |
1915 | } |
1525 | } |
1916 | } |
1526 | |
1917 | |
1527 | void inline_speed |
1918 | void inline_speed |
1528 | ev_clear_pending (EV_P_ W w) |
1919 | clear_pending (EV_P_ W w) |
1529 | { |
1920 | { |
1530 | if (w->pending) |
1921 | if (w->pending) |
1531 | { |
1922 | { |
1532 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1923 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1533 | w->pending = 0; |
1924 | w->pending = 0; |
1534 | } |
1925 | } |
|
|
1926 | } |
|
|
1927 | |
|
|
1928 | int |
|
|
1929 | ev_clear_pending (EV_P_ void *w) |
|
|
1930 | { |
|
|
1931 | W w_ = (W)w; |
|
|
1932 | int pending = w_->pending; |
|
|
1933 | |
|
|
1934 | if (expect_true (pending)) |
|
|
1935 | { |
|
|
1936 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
1937 | w_->pending = 0; |
|
|
1938 | p->w = 0; |
|
|
1939 | return p->events; |
|
|
1940 | } |
|
|
1941 | else |
|
|
1942 | return 0; |
1535 | } |
1943 | } |
1536 | |
1944 | |
1537 | void inline_size |
1945 | void inline_size |
1538 | pri_adjust (EV_P_ W w) |
1946 | pri_adjust (EV_P_ W w) |
1539 | { |
1947 | { |
… | |
… | |
1558 | w->active = 0; |
1966 | w->active = 0; |
1559 | } |
1967 | } |
1560 | |
1968 | |
1561 | /*****************************************************************************/ |
1969 | /*****************************************************************************/ |
1562 | |
1970 | |
1563 | void |
1971 | void noinline |
1564 | ev_io_start (EV_P_ ev_io *w) |
1972 | ev_io_start (EV_P_ ev_io *w) |
1565 | { |
1973 | { |
1566 | int fd = w->fd; |
1974 | int fd = w->fd; |
1567 | |
1975 | |
1568 | if (expect_false (ev_is_active (w))) |
1976 | if (expect_false (ev_is_active (w))) |
… | |
… | |
1570 | |
1978 | |
1571 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1979 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1572 | |
1980 | |
1573 | ev_start (EV_A_ (W)w, 1); |
1981 | ev_start (EV_A_ (W)w, 1); |
1574 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
1982 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
1575 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1983 | wlist_add (&anfds[fd].head, (WL)w); |
1576 | |
1984 | |
1577 | fd_change (EV_A_ fd); |
1985 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
|
|
1986 | w->events &= ~EV_IOFDSET; |
1578 | } |
1987 | } |
1579 | |
1988 | |
1580 | void |
1989 | void noinline |
1581 | ev_io_stop (EV_P_ ev_io *w) |
1990 | ev_io_stop (EV_P_ ev_io *w) |
1582 | { |
1991 | { |
1583 | ev_clear_pending (EV_A_ (W)w); |
1992 | clear_pending (EV_A_ (W)w); |
1584 | if (expect_false (!ev_is_active (w))) |
1993 | if (expect_false (!ev_is_active (w))) |
1585 | return; |
1994 | return; |
1586 | |
1995 | |
1587 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
1996 | assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
1588 | |
1997 | |
1589 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
1998 | wlist_del (&anfds[w->fd].head, (WL)w); |
1590 | ev_stop (EV_A_ (W)w); |
1999 | ev_stop (EV_A_ (W)w); |
1591 | |
2000 | |
1592 | fd_change (EV_A_ w->fd); |
2001 | fd_change (EV_A_ w->fd, 1); |
1593 | } |
2002 | } |
1594 | |
2003 | |
1595 | void |
2004 | void noinline |
1596 | ev_timer_start (EV_P_ ev_timer *w) |
2005 | ev_timer_start (EV_P_ ev_timer *w) |
1597 | { |
2006 | { |
1598 | if (expect_false (ev_is_active (w))) |
2007 | if (expect_false (ev_is_active (w))) |
1599 | return; |
2008 | return; |
1600 | |
2009 | |
1601 | ((WT)w)->at += mn_now; |
2010 | ev_at (w) += mn_now; |
1602 | |
2011 | |
1603 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2012 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1604 | |
2013 | |
1605 | ev_start (EV_A_ (W)w, ++timercnt); |
2014 | ev_start (EV_A_ (W)w, ++timercnt + HEAP0 - 1); |
1606 | array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2); |
2015 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
1607 | timers [timercnt - 1] = w; |
2016 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
1608 | upheap ((WT *)timers, timercnt - 1); |
2017 | ANHE_at_set (timers [ev_active (w)]); |
|
|
2018 | upheap (timers, ev_active (w)); |
1609 | |
2019 | |
1610 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
2020 | /*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
1611 | } |
2021 | } |
1612 | |
2022 | |
1613 | void |
2023 | void noinline |
1614 | ev_timer_stop (EV_P_ ev_timer *w) |
2024 | ev_timer_stop (EV_P_ ev_timer *w) |
1615 | { |
2025 | { |
1616 | ev_clear_pending (EV_A_ (W)w); |
2026 | clear_pending (EV_A_ (W)w); |
1617 | if (expect_false (!ev_is_active (w))) |
2027 | if (expect_false (!ev_is_active (w))) |
1618 | return; |
2028 | return; |
1619 | |
2029 | |
1620 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
|
|
1621 | |
|
|
1622 | { |
2030 | { |
1623 | int active = ((W)w)->active; |
2031 | int active = ev_active (w); |
1624 | |
2032 | |
|
|
2033 | assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
|
|
2034 | |
1625 | if (expect_true (--active < --timercnt)) |
2035 | if (expect_true (active < timercnt + HEAP0 - 1)) |
1626 | { |
2036 | { |
1627 | timers [active] = timers [timercnt]; |
2037 | timers [active] = timers [timercnt + HEAP0 - 1]; |
1628 | adjustheap ((WT *)timers, timercnt, active); |
2038 | adjustheap (timers, timercnt, active); |
1629 | } |
2039 | } |
|
|
2040 | |
|
|
2041 | --timercnt; |
1630 | } |
2042 | } |
1631 | |
2043 | |
1632 | ((WT)w)->at -= mn_now; |
2044 | ev_at (w) -= mn_now; |
1633 | |
2045 | |
1634 | ev_stop (EV_A_ (W)w); |
2046 | ev_stop (EV_A_ (W)w); |
1635 | } |
2047 | } |
1636 | |
2048 | |
1637 | void |
2049 | void noinline |
1638 | ev_timer_again (EV_P_ ev_timer *w) |
2050 | ev_timer_again (EV_P_ ev_timer *w) |
1639 | { |
2051 | { |
1640 | if (ev_is_active (w)) |
2052 | if (ev_is_active (w)) |
1641 | { |
2053 | { |
1642 | if (w->repeat) |
2054 | if (w->repeat) |
1643 | { |
2055 | { |
1644 | ((WT)w)->at = mn_now + w->repeat; |
2056 | ev_at (w) = mn_now + w->repeat; |
|
|
2057 | ANHE_at_set (timers [ev_active (w)]); |
1645 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
2058 | adjustheap (timers, timercnt, ev_active (w)); |
1646 | } |
2059 | } |
1647 | else |
2060 | else |
1648 | ev_timer_stop (EV_A_ w); |
2061 | ev_timer_stop (EV_A_ w); |
1649 | } |
2062 | } |
1650 | else if (w->repeat) |
2063 | else if (w->repeat) |
1651 | { |
2064 | { |
1652 | w->at = w->repeat; |
2065 | ev_at (w) = w->repeat; |
1653 | ev_timer_start (EV_A_ w); |
2066 | ev_timer_start (EV_A_ w); |
1654 | } |
2067 | } |
1655 | } |
2068 | } |
1656 | |
2069 | |
1657 | #if EV_PERIODIC_ENABLE |
2070 | #if EV_PERIODIC_ENABLE |
1658 | void |
2071 | void noinline |
1659 | ev_periodic_start (EV_P_ ev_periodic *w) |
2072 | ev_periodic_start (EV_P_ ev_periodic *w) |
1660 | { |
2073 | { |
1661 | if (expect_false (ev_is_active (w))) |
2074 | if (expect_false (ev_is_active (w))) |
1662 | return; |
2075 | return; |
1663 | |
2076 | |
1664 | if (w->reschedule_cb) |
2077 | if (w->reschedule_cb) |
1665 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
2078 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1666 | else if (w->interval) |
2079 | else if (w->interval) |
1667 | { |
2080 | { |
1668 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2081 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1669 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2082 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1670 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
2083 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1671 | } |
2084 | } |
|
|
2085 | else |
|
|
2086 | ev_at (w) = w->offset; |
1672 | |
2087 | |
1673 | ev_start (EV_A_ (W)w, ++periodiccnt); |
2088 | ev_start (EV_A_ (W)w, ++periodiccnt + HEAP0 - 1); |
1674 | array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); |
2089 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
1675 | periodics [periodiccnt - 1] = w; |
2090 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
1676 | upheap ((WT *)periodics, periodiccnt - 1); |
2091 | upheap (periodics, ev_active (w)); |
1677 | |
2092 | |
1678 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
2093 | /*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
1679 | } |
2094 | } |
1680 | |
2095 | |
1681 | void |
2096 | void noinline |
1682 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2097 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1683 | { |
2098 | { |
1684 | ev_clear_pending (EV_A_ (W)w); |
2099 | clear_pending (EV_A_ (W)w); |
1685 | if (expect_false (!ev_is_active (w))) |
2100 | if (expect_false (!ev_is_active (w))) |
1686 | return; |
2101 | return; |
1687 | |
2102 | |
1688 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
|
|
1689 | |
|
|
1690 | { |
2103 | { |
1691 | int active = ((W)w)->active; |
2104 | int active = ev_active (w); |
1692 | |
2105 | |
|
|
2106 | assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
|
|
2107 | |
1693 | if (expect_true (--active < --periodiccnt)) |
2108 | if (expect_true (active < periodiccnt + HEAP0 - 1)) |
1694 | { |
2109 | { |
1695 | periodics [active] = periodics [periodiccnt]; |
2110 | periodics [active] = periodics [periodiccnt + HEAP0 - 1]; |
1696 | adjustheap ((WT *)periodics, periodiccnt, active); |
2111 | adjustheap (periodics, periodiccnt, active); |
1697 | } |
2112 | } |
|
|
2113 | |
|
|
2114 | --periodiccnt; |
1698 | } |
2115 | } |
1699 | |
2116 | |
1700 | ev_stop (EV_A_ (W)w); |
2117 | ev_stop (EV_A_ (W)w); |
1701 | } |
2118 | } |
1702 | |
2119 | |
1703 | void |
2120 | void noinline |
1704 | ev_periodic_again (EV_P_ ev_periodic *w) |
2121 | ev_periodic_again (EV_P_ ev_periodic *w) |
1705 | { |
2122 | { |
1706 | /* TODO: use adjustheap and recalculation */ |
2123 | /* TODO: use adjustheap and recalculation */ |
1707 | ev_periodic_stop (EV_A_ w); |
2124 | ev_periodic_stop (EV_A_ w); |
1708 | ev_periodic_start (EV_A_ w); |
2125 | ev_periodic_start (EV_A_ w); |
… | |
… | |
1711 | |
2128 | |
1712 | #ifndef SA_RESTART |
2129 | #ifndef SA_RESTART |
1713 | # define SA_RESTART 0 |
2130 | # define SA_RESTART 0 |
1714 | #endif |
2131 | #endif |
1715 | |
2132 | |
1716 | void |
2133 | void noinline |
1717 | ev_signal_start (EV_P_ ev_signal *w) |
2134 | ev_signal_start (EV_P_ ev_signal *w) |
1718 | { |
2135 | { |
1719 | #if EV_MULTIPLICITY |
2136 | #if EV_MULTIPLICITY |
1720 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2137 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1721 | #endif |
2138 | #endif |
1722 | if (expect_false (ev_is_active (w))) |
2139 | if (expect_false (ev_is_active (w))) |
1723 | return; |
2140 | return; |
1724 | |
2141 | |
1725 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2142 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1726 | |
2143 | |
|
|
2144 | evpipe_init (EV_A); |
|
|
2145 | |
|
|
2146 | { |
|
|
2147 | #ifndef _WIN32 |
|
|
2148 | sigset_t full, prev; |
|
|
2149 | sigfillset (&full); |
|
|
2150 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2151 | #endif |
|
|
2152 | |
|
|
2153 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
|
|
2154 | |
|
|
2155 | #ifndef _WIN32 |
|
|
2156 | sigprocmask (SIG_SETMASK, &prev, 0); |
|
|
2157 | #endif |
|
|
2158 | } |
|
|
2159 | |
1727 | ev_start (EV_A_ (W)w, 1); |
2160 | ev_start (EV_A_ (W)w, 1); |
1728 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
|
|
1729 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
2161 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
1730 | |
2162 | |
1731 | if (!((WL)w)->next) |
2163 | if (!((WL)w)->next) |
1732 | { |
2164 | { |
1733 | #if _WIN32 |
2165 | #if _WIN32 |
1734 | signal (w->signum, sighandler); |
2166 | signal (w->signum, ev_sighandler); |
1735 | #else |
2167 | #else |
1736 | struct sigaction sa; |
2168 | struct sigaction sa; |
1737 | sa.sa_handler = sighandler; |
2169 | sa.sa_handler = ev_sighandler; |
1738 | sigfillset (&sa.sa_mask); |
2170 | sigfillset (&sa.sa_mask); |
1739 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2171 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1740 | sigaction (w->signum, &sa, 0); |
2172 | sigaction (w->signum, &sa, 0); |
1741 | #endif |
2173 | #endif |
1742 | } |
2174 | } |
1743 | } |
2175 | } |
1744 | |
2176 | |
1745 | void |
2177 | void noinline |
1746 | ev_signal_stop (EV_P_ ev_signal *w) |
2178 | ev_signal_stop (EV_P_ ev_signal *w) |
1747 | { |
2179 | { |
1748 | ev_clear_pending (EV_A_ (W)w); |
2180 | clear_pending (EV_A_ (W)w); |
1749 | if (expect_false (!ev_is_active (w))) |
2181 | if (expect_false (!ev_is_active (w))) |
1750 | return; |
2182 | return; |
1751 | |
2183 | |
1752 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
2184 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
1753 | ev_stop (EV_A_ (W)w); |
2185 | ev_stop (EV_A_ (W)w); |
1754 | |
2186 | |
1755 | if (!signals [w->signum - 1].head) |
2187 | if (!signals [w->signum - 1].head) |
1756 | signal (w->signum, SIG_DFL); |
2188 | signal (w->signum, SIG_DFL); |
1757 | } |
2189 | } |
… | |
… | |
1764 | #endif |
2196 | #endif |
1765 | if (expect_false (ev_is_active (w))) |
2197 | if (expect_false (ev_is_active (w))) |
1766 | return; |
2198 | return; |
1767 | |
2199 | |
1768 | ev_start (EV_A_ (W)w, 1); |
2200 | ev_start (EV_A_ (W)w, 1); |
1769 | wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2201 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1770 | } |
2202 | } |
1771 | |
2203 | |
1772 | void |
2204 | void |
1773 | ev_child_stop (EV_P_ ev_child *w) |
2205 | ev_child_stop (EV_P_ ev_child *w) |
1774 | { |
2206 | { |
1775 | ev_clear_pending (EV_A_ (W)w); |
2207 | clear_pending (EV_A_ (W)w); |
1776 | if (expect_false (!ev_is_active (w))) |
2208 | if (expect_false (!ev_is_active (w))) |
1777 | return; |
2209 | return; |
1778 | |
2210 | |
1779 | wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2211 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1780 | ev_stop (EV_A_ (W)w); |
2212 | ev_stop (EV_A_ (W)w); |
1781 | } |
2213 | } |
1782 | |
2214 | |
1783 | #if EV_STAT_ENABLE |
2215 | #if EV_STAT_ENABLE |
1784 | |
2216 | |
… | |
… | |
1803 | if (w->wd < 0) |
2235 | if (w->wd < 0) |
1804 | { |
2236 | { |
1805 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2237 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
1806 | |
2238 | |
1807 | /* monitor some parent directory for speedup hints */ |
2239 | /* monitor some parent directory for speedup hints */ |
|
|
2240 | /* note that exceeding the hardcoded limit is not a correctness issue, */ |
|
|
2241 | /* but an efficiency issue only */ |
1808 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2242 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
1809 | { |
2243 | { |
1810 | char path [4096]; |
2244 | char path [4096]; |
1811 | strcpy (path, w->path); |
2245 | strcpy (path, w->path); |
1812 | |
2246 | |
… | |
… | |
2016 | } |
2450 | } |
2017 | |
2451 | |
2018 | void |
2452 | void |
2019 | ev_stat_stop (EV_P_ ev_stat *w) |
2453 | ev_stat_stop (EV_P_ ev_stat *w) |
2020 | { |
2454 | { |
2021 | ev_clear_pending (EV_A_ (W)w); |
2455 | clear_pending (EV_A_ (W)w); |
2022 | if (expect_false (!ev_is_active (w))) |
2456 | if (expect_false (!ev_is_active (w))) |
2023 | return; |
2457 | return; |
2024 | |
2458 | |
2025 | #if EV_USE_INOTIFY |
2459 | #if EV_USE_INOTIFY |
2026 | infy_del (EV_A_ w); |
2460 | infy_del (EV_A_ w); |
… | |
… | |
2052 | } |
2486 | } |
2053 | |
2487 | |
2054 | void |
2488 | void |
2055 | ev_idle_stop (EV_P_ ev_idle *w) |
2489 | ev_idle_stop (EV_P_ ev_idle *w) |
2056 | { |
2490 | { |
2057 | ev_clear_pending (EV_A_ (W)w); |
2491 | clear_pending (EV_A_ (W)w); |
2058 | if (expect_false (!ev_is_active (w))) |
2492 | if (expect_false (!ev_is_active (w))) |
2059 | return; |
2493 | return; |
2060 | |
2494 | |
2061 | { |
2495 | { |
2062 | int active = ((W)w)->active; |
2496 | int active = ev_active (w); |
2063 | |
2497 | |
2064 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2498 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2065 | ((W)idles [ABSPRI (w)][active - 1])->active = active; |
2499 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
2066 | |
2500 | |
2067 | ev_stop (EV_A_ (W)w); |
2501 | ev_stop (EV_A_ (W)w); |
2068 | --idleall; |
2502 | --idleall; |
2069 | } |
2503 | } |
2070 | } |
2504 | } |
… | |
… | |
2082 | } |
2516 | } |
2083 | |
2517 | |
2084 | void |
2518 | void |
2085 | ev_prepare_stop (EV_P_ ev_prepare *w) |
2519 | ev_prepare_stop (EV_P_ ev_prepare *w) |
2086 | { |
2520 | { |
2087 | ev_clear_pending (EV_A_ (W)w); |
2521 | clear_pending (EV_A_ (W)w); |
2088 | if (expect_false (!ev_is_active (w))) |
2522 | if (expect_false (!ev_is_active (w))) |
2089 | return; |
2523 | return; |
2090 | |
2524 | |
2091 | { |
2525 | { |
2092 | int active = ((W)w)->active; |
2526 | int active = ev_active (w); |
|
|
2527 | |
2093 | prepares [active - 1] = prepares [--preparecnt]; |
2528 | prepares [active - 1] = prepares [--preparecnt]; |
2094 | ((W)prepares [active - 1])->active = active; |
2529 | ev_active (prepares [active - 1]) = active; |
2095 | } |
2530 | } |
2096 | |
2531 | |
2097 | ev_stop (EV_A_ (W)w); |
2532 | ev_stop (EV_A_ (W)w); |
2098 | } |
2533 | } |
2099 | |
2534 | |
… | |
… | |
2109 | } |
2544 | } |
2110 | |
2545 | |
2111 | void |
2546 | void |
2112 | ev_check_stop (EV_P_ ev_check *w) |
2547 | ev_check_stop (EV_P_ ev_check *w) |
2113 | { |
2548 | { |
2114 | ev_clear_pending (EV_A_ (W)w); |
2549 | clear_pending (EV_A_ (W)w); |
2115 | if (expect_false (!ev_is_active (w))) |
2550 | if (expect_false (!ev_is_active (w))) |
2116 | return; |
2551 | return; |
2117 | |
2552 | |
2118 | { |
2553 | { |
2119 | int active = ((W)w)->active; |
2554 | int active = ev_active (w); |
|
|
2555 | |
2120 | checks [active - 1] = checks [--checkcnt]; |
2556 | checks [active - 1] = checks [--checkcnt]; |
2121 | ((W)checks [active - 1])->active = active; |
2557 | ev_active (checks [active - 1]) = active; |
2122 | } |
2558 | } |
2123 | |
2559 | |
2124 | ev_stop (EV_A_ (W)w); |
2560 | ev_stop (EV_A_ (W)w); |
2125 | } |
2561 | } |
2126 | |
2562 | |
2127 | #if EV_EMBED_ENABLE |
2563 | #if EV_EMBED_ENABLE |
2128 | void noinline |
2564 | void noinline |
2129 | ev_embed_sweep (EV_P_ ev_embed *w) |
2565 | ev_embed_sweep (EV_P_ ev_embed *w) |
2130 | { |
2566 | { |
2131 | ev_loop (w->loop, EVLOOP_NONBLOCK); |
2567 | ev_loop (w->other, EVLOOP_NONBLOCK); |
2132 | } |
2568 | } |
2133 | |
2569 | |
2134 | static void |
2570 | static void |
2135 | embed_cb (EV_P_ ev_io *io, int revents) |
2571 | embed_io_cb (EV_P_ ev_io *io, int revents) |
2136 | { |
2572 | { |
2137 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
2573 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
2138 | |
2574 | |
2139 | if (ev_cb (w)) |
2575 | if (ev_cb (w)) |
2140 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2576 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2141 | else |
2577 | else |
2142 | ev_embed_sweep (loop, w); |
2578 | ev_loop (w->other, EVLOOP_NONBLOCK); |
2143 | } |
2579 | } |
|
|
2580 | |
|
|
2581 | static void |
|
|
2582 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
|
|
2583 | { |
|
|
2584 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
|
|
2585 | |
|
|
2586 | { |
|
|
2587 | struct ev_loop *loop = w->other; |
|
|
2588 | |
|
|
2589 | while (fdchangecnt) |
|
|
2590 | { |
|
|
2591 | fd_reify (EV_A); |
|
|
2592 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
2593 | } |
|
|
2594 | } |
|
|
2595 | } |
|
|
2596 | |
|
|
2597 | #if 0 |
|
|
2598 | static void |
|
|
2599 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
|
|
2600 | { |
|
|
2601 | ev_idle_stop (EV_A_ idle); |
|
|
2602 | } |
|
|
2603 | #endif |
2144 | |
2604 | |
2145 | void |
2605 | void |
2146 | ev_embed_start (EV_P_ ev_embed *w) |
2606 | ev_embed_start (EV_P_ ev_embed *w) |
2147 | { |
2607 | { |
2148 | if (expect_false (ev_is_active (w))) |
2608 | if (expect_false (ev_is_active (w))) |
2149 | return; |
2609 | return; |
2150 | |
2610 | |
2151 | { |
2611 | { |
2152 | struct ev_loop *loop = w->loop; |
2612 | struct ev_loop *loop = w->other; |
2153 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2613 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2154 | ev_io_init (&w->io, embed_cb, backend_fd, EV_READ); |
2614 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2155 | } |
2615 | } |
2156 | |
2616 | |
2157 | ev_set_priority (&w->io, ev_priority (w)); |
2617 | ev_set_priority (&w->io, ev_priority (w)); |
2158 | ev_io_start (EV_A_ &w->io); |
2618 | ev_io_start (EV_A_ &w->io); |
2159 | |
2619 | |
|
|
2620 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
|
|
2621 | ev_set_priority (&w->prepare, EV_MINPRI); |
|
|
2622 | ev_prepare_start (EV_A_ &w->prepare); |
|
|
2623 | |
|
|
2624 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
|
|
2625 | |
2160 | ev_start (EV_A_ (W)w, 1); |
2626 | ev_start (EV_A_ (W)w, 1); |
2161 | } |
2627 | } |
2162 | |
2628 | |
2163 | void |
2629 | void |
2164 | ev_embed_stop (EV_P_ ev_embed *w) |
2630 | ev_embed_stop (EV_P_ ev_embed *w) |
2165 | { |
2631 | { |
2166 | ev_clear_pending (EV_A_ (W)w); |
2632 | clear_pending (EV_A_ (W)w); |
2167 | if (expect_false (!ev_is_active (w))) |
2633 | if (expect_false (!ev_is_active (w))) |
2168 | return; |
2634 | return; |
2169 | |
2635 | |
2170 | ev_io_stop (EV_A_ &w->io); |
2636 | ev_io_stop (EV_A_ &w->io); |
|
|
2637 | ev_prepare_stop (EV_A_ &w->prepare); |
2171 | |
2638 | |
2172 | ev_stop (EV_A_ (W)w); |
2639 | ev_stop (EV_A_ (W)w); |
2173 | } |
2640 | } |
2174 | #endif |
2641 | #endif |
2175 | |
2642 | |
… | |
… | |
2186 | } |
2653 | } |
2187 | |
2654 | |
2188 | void |
2655 | void |
2189 | ev_fork_stop (EV_P_ ev_fork *w) |
2656 | ev_fork_stop (EV_P_ ev_fork *w) |
2190 | { |
2657 | { |
2191 | ev_clear_pending (EV_A_ (W)w); |
2658 | clear_pending (EV_A_ (W)w); |
2192 | if (expect_false (!ev_is_active (w))) |
2659 | if (expect_false (!ev_is_active (w))) |
2193 | return; |
2660 | return; |
2194 | |
2661 | |
2195 | { |
2662 | { |
2196 | int active = ((W)w)->active; |
2663 | int active = ev_active (w); |
|
|
2664 | |
2197 | forks [active - 1] = forks [--forkcnt]; |
2665 | forks [active - 1] = forks [--forkcnt]; |
2198 | ((W)forks [active - 1])->active = active; |
2666 | ev_active (forks [active - 1]) = active; |
2199 | } |
2667 | } |
2200 | |
2668 | |
2201 | ev_stop (EV_A_ (W)w); |
2669 | ev_stop (EV_A_ (W)w); |
|
|
2670 | } |
|
|
2671 | #endif |
|
|
2672 | |
|
|
2673 | #if EV_ASYNC_ENABLE |
|
|
2674 | void |
|
|
2675 | ev_async_start (EV_P_ ev_async *w) |
|
|
2676 | { |
|
|
2677 | if (expect_false (ev_is_active (w))) |
|
|
2678 | return; |
|
|
2679 | |
|
|
2680 | evpipe_init (EV_A); |
|
|
2681 | |
|
|
2682 | ev_start (EV_A_ (W)w, ++asynccnt); |
|
|
2683 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
|
|
2684 | asyncs [asynccnt - 1] = w; |
|
|
2685 | } |
|
|
2686 | |
|
|
2687 | void |
|
|
2688 | ev_async_stop (EV_P_ ev_async *w) |
|
|
2689 | { |
|
|
2690 | clear_pending (EV_A_ (W)w); |
|
|
2691 | if (expect_false (!ev_is_active (w))) |
|
|
2692 | return; |
|
|
2693 | |
|
|
2694 | { |
|
|
2695 | int active = ev_active (w); |
|
|
2696 | |
|
|
2697 | asyncs [active - 1] = asyncs [--asynccnt]; |
|
|
2698 | ev_active (asyncs [active - 1]) = active; |
|
|
2699 | } |
|
|
2700 | |
|
|
2701 | ev_stop (EV_A_ (W)w); |
|
|
2702 | } |
|
|
2703 | |
|
|
2704 | void |
|
|
2705 | ev_async_send (EV_P_ ev_async *w) |
|
|
2706 | { |
|
|
2707 | w->sent = 1; |
|
|
2708 | evpipe_write (EV_A_ &gotasync); |
2202 | } |
2709 | } |
2203 | #endif |
2710 | #endif |
2204 | |
2711 | |
2205 | /*****************************************************************************/ |
2712 | /*****************************************************************************/ |
2206 | |
2713 | |
… | |
… | |
2264 | ev_timer_set (&once->to, timeout, 0.); |
2771 | ev_timer_set (&once->to, timeout, 0.); |
2265 | ev_timer_start (EV_A_ &once->to); |
2772 | ev_timer_start (EV_A_ &once->to); |
2266 | } |
2773 | } |
2267 | } |
2774 | } |
2268 | |
2775 | |
|
|
2776 | #if EV_MULTIPLICITY |
|
|
2777 | #include "ev_wrap.h" |
|
|
2778 | #endif |
|
|
2779 | |
2269 | #ifdef __cplusplus |
2780 | #ifdef __cplusplus |
2270 | } |
2781 | } |
2271 | #endif |
2782 | #endif |
2272 | |
2783 | |