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 |
… | |
… | |
51 | # ifndef EV_USE_MONOTONIC |
59 | # ifndef EV_USE_MONOTONIC |
52 | # define EV_USE_MONOTONIC 0 |
60 | # define EV_USE_MONOTONIC 0 |
53 | # endif |
61 | # endif |
54 | # ifndef EV_USE_REALTIME |
62 | # ifndef EV_USE_REALTIME |
55 | # define EV_USE_REALTIME 0 |
63 | # define EV_USE_REALTIME 0 |
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64 | # endif |
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65 | # endif |
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66 | |
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67 | # ifndef EV_USE_NANOSLEEP |
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68 | # if HAVE_NANOSLEEP |
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69 | # define EV_USE_NANOSLEEP 1 |
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70 | # else |
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71 | # define EV_USE_NANOSLEEP 0 |
56 | # endif |
72 | # endif |
57 | # endif |
73 | # endif |
58 | |
74 | |
59 | # ifndef EV_USE_SELECT |
75 | # ifndef EV_USE_SELECT |
60 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
76 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
… | |
… | |
146 | |
162 | |
147 | #ifndef EV_USE_REALTIME |
163 | #ifndef EV_USE_REALTIME |
148 | # define EV_USE_REALTIME 0 |
164 | # define EV_USE_REALTIME 0 |
149 | #endif |
165 | #endif |
150 | |
166 | |
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167 | #ifndef EV_USE_NANOSLEEP |
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168 | # define EV_USE_NANOSLEEP 0 |
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169 | #endif |
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170 | |
151 | #ifndef EV_USE_SELECT |
171 | #ifndef EV_USE_SELECT |
152 | # define EV_USE_SELECT 1 |
172 | # define EV_USE_SELECT 1 |
153 | #endif |
173 | #endif |
154 | |
174 | |
155 | #ifndef EV_USE_POLL |
175 | #ifndef EV_USE_POLL |
… | |
… | |
202 | #ifndef CLOCK_REALTIME |
222 | #ifndef CLOCK_REALTIME |
203 | # undef EV_USE_REALTIME |
223 | # undef EV_USE_REALTIME |
204 | # define EV_USE_REALTIME 0 |
224 | # define EV_USE_REALTIME 0 |
205 | #endif |
225 | #endif |
206 | |
226 | |
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227 | #if !EV_STAT_ENABLE |
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228 | # undef EV_USE_INOTIFY |
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229 | # define EV_USE_INOTIFY 0 |
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230 | #endif |
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231 | |
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232 | #if !EV_USE_NANOSLEEP |
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233 | # ifndef _WIN32 |
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234 | # include <sys/select.h> |
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235 | # endif |
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236 | #endif |
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237 | |
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238 | #if EV_USE_INOTIFY |
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239 | # include <sys/inotify.h> |
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240 | #endif |
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241 | |
207 | #if EV_SELECT_IS_WINSOCKET |
242 | #if EV_SELECT_IS_WINSOCKET |
208 | # include <winsock.h> |
243 | # include <winsock.h> |
209 | #endif |
244 | #endif |
210 | |
245 | |
211 | #if !EV_STAT_ENABLE |
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212 | # define EV_USE_INOTIFY 0 |
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213 | #endif |
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214 | |
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215 | #if EV_USE_INOTIFY |
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216 | # include <sys/inotify.h> |
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217 | #endif |
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218 | |
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219 | /**/ |
246 | /**/ |
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247 | |
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248 | /* |
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249 | * This is used to avoid floating point rounding problems. |
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250 | * It is added to ev_rt_now when scheduling periodics |
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251 | * to ensure progress, time-wise, even when rounding |
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252 | * errors are against us. |
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253 | * This value is good at least till the year 4000. |
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254 | * Better solutions welcome. |
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255 | */ |
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256 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
220 | |
257 | |
221 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
258 | #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) */ |
259 | #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 */ |
260 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
224 | |
261 | |
225 | #if __GNUC__ >= 3 |
262 | #if __GNUC__ >= 4 |
226 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
263 | # 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)) |
264 | # 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 |
265 | #else |
236 | # define expect(expr,value) (expr) |
266 | # 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 |
267 | # define noinline |
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268 | # if __STDC_VERSION__ < 199901L |
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269 | # define inline |
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270 | # endif |
240 | #endif |
271 | #endif |
241 | |
272 | |
242 | #define expect_false(expr) expect ((expr) != 0, 0) |
273 | #define expect_false(expr) expect ((expr) != 0, 0) |
243 | #define expect_true(expr) expect ((expr) != 0, 1) |
274 | #define expect_true(expr) expect ((expr) != 0, 1) |
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275 | #define inline_size static inline |
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276 | |
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277 | #if EV_MINIMAL |
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278 | # define inline_speed static noinline |
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279 | #else |
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280 | # define inline_speed static inline |
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281 | #endif |
244 | |
282 | |
245 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
283 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
246 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
284 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
247 | |
285 | |
248 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
286 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
… | |
… | |
250 | |
288 | |
251 | typedef ev_watcher *W; |
289 | typedef ev_watcher *W; |
252 | typedef ev_watcher_list *WL; |
290 | typedef ev_watcher_list *WL; |
253 | typedef ev_watcher_time *WT; |
291 | typedef ev_watcher_time *WT; |
254 | |
292 | |
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293 | #if EV_USE_MONOTONIC |
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294 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
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295 | /* giving it a reasonably high chance of working on typical architetcures */ |
255 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
296 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
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297 | #endif |
256 | |
298 | |
257 | #ifdef _WIN32 |
299 | #ifdef _WIN32 |
258 | # include "ev_win32.c" |
300 | # include "ev_win32.c" |
259 | #endif |
301 | #endif |
260 | |
302 | |
… | |
… | |
396 | { |
438 | { |
397 | return ev_rt_now; |
439 | return ev_rt_now; |
398 | } |
440 | } |
399 | #endif |
441 | #endif |
400 | |
442 | |
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443 | void |
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444 | ev_sleep (ev_tstamp delay) |
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445 | { |
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446 | if (delay > 0.) |
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447 | { |
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448 | #if EV_USE_NANOSLEEP |
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449 | struct timespec ts; |
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450 | |
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451 | ts.tv_sec = (time_t)delay; |
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452 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
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453 | |
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454 | nanosleep (&ts, 0); |
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455 | #elif defined(_WIN32) |
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456 | Sleep (delay * 1e3); |
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457 | #else |
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458 | struct timeval tv; |
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459 | |
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460 | tv.tv_sec = (time_t)delay; |
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461 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
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462 | |
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463 | select (0, 0, 0, 0, &tv); |
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464 | #endif |
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465 | } |
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466 | } |
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467 | |
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468 | /*****************************************************************************/ |
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469 | |
401 | int inline_size |
470 | int inline_size |
402 | array_nextsize (int elem, int cur, int cnt) |
471 | array_nextsize (int elem, int cur, int cnt) |
403 | { |
472 | { |
404 | int ncur = cur + 1; |
473 | int ncur = cur + 1; |
405 | |
474 | |
… | |
… | |
417 | } |
486 | } |
418 | |
487 | |
419 | return ncur; |
488 | return ncur; |
420 | } |
489 | } |
421 | |
490 | |
422 | inline_speed void * |
491 | static noinline void * |
423 | array_realloc (int elem, void *base, int *cur, int cnt) |
492 | array_realloc (int elem, void *base, int *cur, int cnt) |
424 | { |
493 | { |
425 | *cur = array_nextsize (elem, *cur, cnt); |
494 | *cur = array_nextsize (elem, *cur, cnt); |
426 | return ev_realloc (base, elem * *cur); |
495 | return ev_realloc (base, elem * *cur); |
427 | } |
496 | } |
… | |
… | |
452 | |
521 | |
453 | void noinline |
522 | void noinline |
454 | ev_feed_event (EV_P_ void *w, int revents) |
523 | ev_feed_event (EV_P_ void *w, int revents) |
455 | { |
524 | { |
456 | W w_ = (W)w; |
525 | W w_ = (W)w; |
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526 | int pri = ABSPRI (w_); |
457 | |
527 | |
458 | if (expect_false (w_->pending)) |
528 | if (expect_false (w_->pending)) |
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529 | pendings [pri][w_->pending - 1].events |= revents; |
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530 | else |
459 | { |
531 | { |
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532 | w_->pending = ++pendingcnt [pri]; |
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533 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
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534 | pendings [pri][w_->pending - 1].w = w_; |
460 | pendings [ABSPRI (w_)][w_->pending - 1].events |= revents; |
535 | pendings [pri][w_->pending - 1].events = revents; |
461 | return; |
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462 | } |
536 | } |
463 | |
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464 | w_->pending = ++pendingcnt [ABSPRI (w_)]; |
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465 | array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2); |
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466 | pendings [ABSPRI (w_)][w_->pending - 1].w = w_; |
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467 | pendings [ABSPRI (w_)][w_->pending - 1].events = revents; |
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468 | } |
537 | } |
469 | |
538 | |
470 | void inline_size |
539 | void inline_speed |
471 | queue_events (EV_P_ W *events, int eventcnt, int type) |
540 | queue_events (EV_P_ W *events, int eventcnt, int type) |
472 | { |
541 | { |
473 | int i; |
542 | int i; |
474 | |
543 | |
475 | for (i = 0; i < eventcnt; ++i) |
544 | for (i = 0; i < eventcnt; ++i) |
… | |
… | |
507 | } |
576 | } |
508 | |
577 | |
509 | void |
578 | void |
510 | ev_feed_fd_event (EV_P_ int fd, int revents) |
579 | ev_feed_fd_event (EV_P_ int fd, int revents) |
511 | { |
580 | { |
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581 | if (fd >= 0 && fd < anfdmax) |
512 | fd_event (EV_A_ fd, revents); |
582 | fd_event (EV_A_ fd, revents); |
513 | } |
583 | } |
514 | |
584 | |
515 | void inline_size |
585 | void inline_size |
516 | fd_reify (EV_P) |
586 | fd_reify (EV_P) |
517 | { |
587 | { |
… | |
… | |
521 | { |
591 | { |
522 | int fd = fdchanges [i]; |
592 | int fd = fdchanges [i]; |
523 | ANFD *anfd = anfds + fd; |
593 | ANFD *anfd = anfds + fd; |
524 | ev_io *w; |
594 | ev_io *w; |
525 | |
595 | |
526 | int events = 0; |
596 | unsigned char events = 0; |
527 | |
597 | |
528 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
598 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
529 | events |= w->events; |
599 | events |= (unsigned char)w->events; |
530 | |
600 | |
531 | #if EV_SELECT_IS_WINSOCKET |
601 | #if EV_SELECT_IS_WINSOCKET |
532 | if (events) |
602 | if (events) |
533 | { |
603 | { |
534 | unsigned long argp; |
604 | unsigned long argp; |
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605 | #ifdef EV_FD_TO_WIN32_HANDLE |
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606 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
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607 | #else |
535 | anfd->handle = _get_osfhandle (fd); |
608 | anfd->handle = _get_osfhandle (fd); |
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609 | #endif |
536 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
610 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
537 | } |
611 | } |
538 | #endif |
612 | #endif |
539 | |
613 | |
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614 | { |
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615 | unsigned char o_events = anfd->events; |
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616 | unsigned char o_reify = anfd->reify; |
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617 | |
540 | anfd->reify = 0; |
618 | anfd->reify = 0; |
541 | |
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542 | backend_modify (EV_A_ fd, anfd->events, events); |
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543 | anfd->events = events; |
619 | anfd->events = events; |
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620 | |
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621 | if (o_events != events || o_reify & EV_IOFDSET) |
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622 | backend_modify (EV_A_ fd, o_events, events); |
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623 | } |
544 | } |
624 | } |
545 | |
625 | |
546 | fdchangecnt = 0; |
626 | fdchangecnt = 0; |
547 | } |
627 | } |
548 | |
628 | |
549 | void inline_size |
629 | void inline_size |
550 | fd_change (EV_P_ int fd) |
630 | fd_change (EV_P_ int fd, int flags) |
551 | { |
631 | { |
552 | if (expect_false (anfds [fd].reify)) |
632 | unsigned char reify = anfds [fd].reify; |
553 | return; |
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554 | |
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555 | anfds [fd].reify = 1; |
633 | anfds [fd].reify |= flags; |
556 | |
634 | |
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635 | if (expect_true (!reify)) |
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636 | { |
557 | ++fdchangecnt; |
637 | ++fdchangecnt; |
558 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
638 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
559 | fdchanges [fdchangecnt - 1] = fd; |
639 | fdchanges [fdchangecnt - 1] = fd; |
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640 | } |
560 | } |
641 | } |
561 | |
642 | |
562 | void inline_speed |
643 | void inline_speed |
563 | fd_kill (EV_P_ int fd) |
644 | fd_kill (EV_P_ int fd) |
564 | { |
645 | { |
… | |
… | |
615 | |
696 | |
616 | for (fd = 0; fd < anfdmax; ++fd) |
697 | for (fd = 0; fd < anfdmax; ++fd) |
617 | if (anfds [fd].events) |
698 | if (anfds [fd].events) |
618 | { |
699 | { |
619 | anfds [fd].events = 0; |
700 | anfds [fd].events = 0; |
620 | fd_change (EV_A_ fd); |
701 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
621 | } |
702 | } |
622 | } |
703 | } |
623 | |
704 | |
624 | /*****************************************************************************/ |
705 | /*****************************************************************************/ |
625 | |
706 | |
626 | void inline_speed |
707 | void inline_speed |
627 | upheap (WT *heap, int k) |
708 | upheap (WT *heap, int k) |
628 | { |
709 | { |
629 | WT w = heap [k]; |
710 | WT w = heap [k]; |
630 | |
711 | |
631 | while (k && heap [k >> 1]->at > w->at) |
712 | while (k) |
632 | { |
713 | { |
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714 | int p = (k - 1) >> 1; |
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715 | |
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716 | if (heap [p]->at <= w->at) |
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717 | break; |
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718 | |
633 | heap [k] = heap [k >> 1]; |
719 | heap [k] = heap [p]; |
634 | ((W)heap [k])->active = k + 1; |
720 | ((W)heap [k])->active = k + 1; |
635 | k >>= 1; |
721 | k = p; |
636 | } |
722 | } |
637 | |
723 | |
638 | heap [k] = w; |
724 | heap [k] = w; |
639 | ((W)heap [k])->active = k + 1; |
725 | ((W)heap [k])->active = k + 1; |
640 | |
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641 | } |
726 | } |
642 | |
727 | |
643 | void inline_speed |
728 | void inline_speed |
644 | downheap (WT *heap, int N, int k) |
729 | downheap (WT *heap, int N, int k) |
645 | { |
730 | { |
646 | WT w = heap [k]; |
731 | WT w = heap [k]; |
647 | |
732 | |
648 | while (k < (N >> 1)) |
733 | for (;;) |
649 | { |
734 | { |
650 | int j = k << 1; |
735 | int c = (k << 1) + 1; |
651 | |
736 | |
652 | if (j + 1 < N && heap [j]->at > heap [j + 1]->at) |
737 | if (c >= N) |
653 | ++j; |
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654 | |
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655 | if (w->at <= heap [j]->at) |
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656 | break; |
738 | break; |
657 | |
739 | |
|
|
740 | c += c + 1 < N && heap [c]->at > heap [c + 1]->at |
|
|
741 | ? 1 : 0; |
|
|
742 | |
|
|
743 | if (w->at <= heap [c]->at) |
|
|
744 | break; |
|
|
745 | |
658 | heap [k] = heap [j]; |
746 | heap [k] = heap [c]; |
659 | ((W)heap [k])->active = k + 1; |
747 | ((W)heap [k])->active = k + 1; |
|
|
748 | |
660 | k = j; |
749 | k = c; |
661 | } |
750 | } |
662 | |
751 | |
663 | heap [k] = w; |
752 | heap [k] = w; |
664 | ((W)heap [k])->active = k + 1; |
753 | ((W)heap [k])->active = k + 1; |
665 | } |
754 | } |
… | |
… | |
674 | /*****************************************************************************/ |
763 | /*****************************************************************************/ |
675 | |
764 | |
676 | typedef struct |
765 | typedef struct |
677 | { |
766 | { |
678 | WL head; |
767 | WL head; |
679 | sig_atomic_t volatile gotsig; |
768 | EV_ATOMIC_T gotsig; |
680 | } ANSIG; |
769 | } ANSIG; |
681 | |
770 | |
682 | static ANSIG *signals; |
771 | static ANSIG *signals; |
683 | static int signalmax; |
772 | static int signalmax; |
684 | |
773 | |
685 | static int sigpipe [2]; |
774 | static EV_ATOMIC_T gotsig; |
686 | static sig_atomic_t volatile gotsig; |
|
|
687 | static ev_io sigev; |
|
|
688 | |
775 | |
689 | void inline_size |
776 | void inline_size |
690 | signals_init (ANSIG *base, int count) |
777 | signals_init (ANSIG *base, int count) |
691 | { |
778 | { |
692 | while (count--) |
779 | while (count--) |
… | |
… | |
696 | |
783 | |
697 | ++base; |
784 | ++base; |
698 | } |
785 | } |
699 | } |
786 | } |
700 | |
787 | |
701 | static void |
788 | /*****************************************************************************/ |
702 | sighandler (int signum) |
|
|
703 | { |
|
|
704 | #if _WIN32 |
|
|
705 | signal (signum, sighandler); |
|
|
706 | #endif |
|
|
707 | |
789 | |
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 |
790 | void inline_speed |
753 | fd_intern (int fd) |
791 | fd_intern (int fd) |
754 | { |
792 | { |
755 | #ifdef _WIN32 |
793 | #ifdef _WIN32 |
756 | int arg = 1; |
794 | int arg = 1; |
757 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
795 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
… | |
… | |
760 | fcntl (fd, F_SETFL, O_NONBLOCK); |
798 | fcntl (fd, F_SETFL, O_NONBLOCK); |
761 | #endif |
799 | #endif |
762 | } |
800 | } |
763 | |
801 | |
764 | static void noinline |
802 | static void noinline |
765 | siginit (EV_P) |
803 | evpipe_init (EV_P) |
766 | { |
804 | { |
|
|
805 | if (!ev_is_active (&pipeev)) |
|
|
806 | { |
|
|
807 | while (pipe (evpipe)) |
|
|
808 | syserr ("(libev) error creating signal/async pipe"); |
|
|
809 | |
767 | fd_intern (sigpipe [0]); |
810 | fd_intern (evpipe [0]); |
768 | fd_intern (sigpipe [1]); |
811 | fd_intern (evpipe [1]); |
769 | |
812 | |
770 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
813 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
771 | ev_io_start (EV_A_ &sigev); |
814 | ev_io_start (EV_A_ &pipeev); |
772 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
815 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
816 | } |
|
|
817 | } |
|
|
818 | |
|
|
819 | void inline_size |
|
|
820 | evpipe_write (EV_P_ int sig, int async) |
|
|
821 | { |
|
|
822 | int sent = gotasync || gotsig; |
|
|
823 | |
|
|
824 | if (sig) gotsig = 1; |
|
|
825 | if (async) gotasync = 1; |
|
|
826 | |
|
|
827 | if (!sent) |
|
|
828 | { |
|
|
829 | int old_errno = errno; /* save errno becaue write might clobber it */ |
|
|
830 | write (evpipe [1], &old_errno, 1); |
|
|
831 | errno = old_errno; |
|
|
832 | } |
|
|
833 | } |
|
|
834 | |
|
|
835 | static void |
|
|
836 | pipecb (EV_P_ ev_io *iow, int revents) |
|
|
837 | { |
|
|
838 | { |
|
|
839 | int dummy; |
|
|
840 | read (evpipe [0], &dummy, 1); |
|
|
841 | } |
|
|
842 | |
|
|
843 | if (gotsig && ev_is_default_loop (EV_A)) |
|
|
844 | { |
|
|
845 | int signum; |
|
|
846 | gotsig = 0; |
|
|
847 | |
|
|
848 | for (signum = signalmax; signum--; ) |
|
|
849 | if (signals [signum].gotsig) |
|
|
850 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
851 | } |
|
|
852 | |
|
|
853 | #if EV_ASYNC_ENABLE |
|
|
854 | if (gotasync) |
|
|
855 | { |
|
|
856 | int i; |
|
|
857 | gotasync = 0; |
|
|
858 | |
|
|
859 | for (i = asynccnt; i--; ) |
|
|
860 | if (asyncs [i]->sent) |
|
|
861 | { |
|
|
862 | asyncs [i]->sent = 0; |
|
|
863 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
|
|
864 | } |
|
|
865 | } |
|
|
866 | #endif |
773 | } |
867 | } |
774 | |
868 | |
775 | /*****************************************************************************/ |
869 | /*****************************************************************************/ |
776 | |
870 | |
|
|
871 | static void |
|
|
872 | sighandler (int signum) |
|
|
873 | { |
|
|
874 | #if EV_MULTIPLICITY |
|
|
875 | struct ev_loop *loop = &default_loop_struct; |
|
|
876 | #endif |
|
|
877 | |
|
|
878 | #if _WIN32 |
|
|
879 | signal (signum, sighandler); |
|
|
880 | #endif |
|
|
881 | |
|
|
882 | signals [signum - 1].gotsig = 1; |
|
|
883 | evpipe_write (EV_A_ 1, 0); |
|
|
884 | } |
|
|
885 | |
|
|
886 | void noinline |
|
|
887 | ev_feed_signal_event (EV_P_ int signum) |
|
|
888 | { |
|
|
889 | WL w; |
|
|
890 | |
|
|
891 | #if EV_MULTIPLICITY |
|
|
892 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
893 | #endif |
|
|
894 | |
|
|
895 | --signum; |
|
|
896 | |
|
|
897 | if (signum < 0 || signum >= signalmax) |
|
|
898 | return; |
|
|
899 | |
|
|
900 | signals [signum].gotsig = 0; |
|
|
901 | |
|
|
902 | for (w = signals [signum].head; w; w = w->next) |
|
|
903 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
904 | } |
|
|
905 | |
|
|
906 | /*****************************************************************************/ |
|
|
907 | |
777 | static ev_child *childs [EV_PID_HASHSIZE]; |
908 | static WL childs [EV_PID_HASHSIZE]; |
778 | |
909 | |
779 | #ifndef _WIN32 |
910 | #ifndef _WIN32 |
780 | |
911 | |
781 | static ev_signal childev; |
912 | static ev_signal childev; |
|
|
913 | |
|
|
914 | #ifndef WIFCONTINUED |
|
|
915 | # define WIFCONTINUED(status) 0 |
|
|
916 | #endif |
782 | |
917 | |
783 | void inline_speed |
918 | void inline_speed |
784 | child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) |
919 | child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) |
785 | { |
920 | { |
786 | ev_child *w; |
921 | ev_child *w; |
|
|
922 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
787 | |
923 | |
788 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
924 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
925 | { |
789 | if (w->pid == pid || !w->pid) |
926 | if ((w->pid == pid || !w->pid) |
|
|
927 | && (!traced || (w->flags & 1))) |
790 | { |
928 | { |
791 | ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */ |
929 | ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */ |
792 | w->rpid = pid; |
930 | w->rpid = pid; |
793 | w->rstatus = status; |
931 | w->rstatus = status; |
794 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
932 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
795 | } |
933 | } |
|
|
934 | } |
796 | } |
935 | } |
797 | |
936 | |
798 | #ifndef WCONTINUED |
937 | #ifndef WCONTINUED |
799 | # define WCONTINUED 0 |
938 | # define WCONTINUED 0 |
800 | #endif |
939 | #endif |
… | |
… | |
897 | } |
1036 | } |
898 | |
1037 | |
899 | unsigned int |
1038 | unsigned int |
900 | ev_embeddable_backends (void) |
1039 | ev_embeddable_backends (void) |
901 | { |
1040 | { |
902 | return EVBACKEND_EPOLL |
1041 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
903 | | EVBACKEND_KQUEUE |
1042 | |
904 | | EVBACKEND_PORT; |
1043 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
|
|
1044 | /* please fix it and tell me how to detect the fix */ |
|
|
1045 | flags &= ~EVBACKEND_EPOLL; |
|
|
1046 | |
|
|
1047 | return flags; |
905 | } |
1048 | } |
906 | |
1049 | |
907 | unsigned int |
1050 | unsigned int |
908 | ev_backend (EV_P) |
1051 | ev_backend (EV_P) |
909 | { |
1052 | { |
… | |
… | |
912 | |
1055 | |
913 | unsigned int |
1056 | unsigned int |
914 | ev_loop_count (EV_P) |
1057 | ev_loop_count (EV_P) |
915 | { |
1058 | { |
916 | return loop_count; |
1059 | return loop_count; |
|
|
1060 | } |
|
|
1061 | |
|
|
1062 | void |
|
|
1063 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1064 | { |
|
|
1065 | io_blocktime = interval; |
|
|
1066 | } |
|
|
1067 | |
|
|
1068 | void |
|
|
1069 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1070 | { |
|
|
1071 | timeout_blocktime = interval; |
917 | } |
1072 | } |
918 | |
1073 | |
919 | static void noinline |
1074 | static void noinline |
920 | loop_init (EV_P_ unsigned int flags) |
1075 | loop_init (EV_P_ unsigned int flags) |
921 | { |
1076 | { |
… | |
… | |
927 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1082 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
928 | have_monotonic = 1; |
1083 | have_monotonic = 1; |
929 | } |
1084 | } |
930 | #endif |
1085 | #endif |
931 | |
1086 | |
932 | ev_rt_now = ev_time (); |
1087 | ev_rt_now = ev_time (); |
933 | mn_now = get_clock (); |
1088 | mn_now = get_clock (); |
934 | now_floor = mn_now; |
1089 | now_floor = mn_now; |
935 | rtmn_diff = ev_rt_now - mn_now; |
1090 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1091 | |
|
|
1092 | io_blocktime = 0.; |
|
|
1093 | timeout_blocktime = 0.; |
|
|
1094 | backend = 0; |
|
|
1095 | backend_fd = -1; |
|
|
1096 | gotasync = 0; |
|
|
1097 | #if EV_USE_INOTIFY |
|
|
1098 | fs_fd = -2; |
|
|
1099 | #endif |
936 | |
1100 | |
937 | /* pid check not overridable via env */ |
1101 | /* pid check not overridable via env */ |
938 | #ifndef _WIN32 |
1102 | #ifndef _WIN32 |
939 | if (flags & EVFLAG_FORKCHECK) |
1103 | if (flags & EVFLAG_FORKCHECK) |
940 | curpid = getpid (); |
1104 | curpid = getpid (); |
… | |
… | |
946 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1110 | flags = atoi (getenv ("LIBEV_FLAGS")); |
947 | |
1111 | |
948 | if (!(flags & 0x0000ffffUL)) |
1112 | if (!(flags & 0x0000ffffUL)) |
949 | flags |= ev_recommended_backends (); |
1113 | flags |= ev_recommended_backends (); |
950 | |
1114 | |
951 | backend = 0; |
|
|
952 | backend_fd = -1; |
|
|
953 | #if EV_USE_INOTIFY |
|
|
954 | fs_fd = -2; |
|
|
955 | #endif |
|
|
956 | |
|
|
957 | #if EV_USE_PORT |
1115 | #if EV_USE_PORT |
958 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1116 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
959 | #endif |
1117 | #endif |
960 | #if EV_USE_KQUEUE |
1118 | #if EV_USE_KQUEUE |
961 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
1119 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
… | |
… | |
968 | #endif |
1126 | #endif |
969 | #if EV_USE_SELECT |
1127 | #if EV_USE_SELECT |
970 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1128 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
971 | #endif |
1129 | #endif |
972 | |
1130 | |
973 | ev_init (&sigev, sigcb); |
1131 | ev_init (&pipeev, pipecb); |
974 | ev_set_priority (&sigev, EV_MAXPRI); |
1132 | ev_set_priority (&pipeev, EV_MAXPRI); |
975 | } |
1133 | } |
976 | } |
1134 | } |
977 | |
1135 | |
978 | static void noinline |
1136 | static void noinline |
979 | loop_destroy (EV_P) |
1137 | loop_destroy (EV_P) |
980 | { |
1138 | { |
981 | int i; |
1139 | int i; |
|
|
1140 | |
|
|
1141 | if (ev_is_active (&pipeev)) |
|
|
1142 | { |
|
|
1143 | ev_ref (EV_A); /* signal watcher */ |
|
|
1144 | ev_io_stop (EV_A_ &pipeev); |
|
|
1145 | |
|
|
1146 | close (evpipe [0]); evpipe [0] = 0; |
|
|
1147 | close (evpipe [1]); evpipe [1] = 0; |
|
|
1148 | } |
982 | |
1149 | |
983 | #if EV_USE_INOTIFY |
1150 | #if EV_USE_INOTIFY |
984 | if (fs_fd >= 0) |
1151 | if (fs_fd >= 0) |
985 | close (fs_fd); |
1152 | close (fs_fd); |
986 | #endif |
1153 | #endif |
… | |
… | |
1009 | array_free (pending, [i]); |
1176 | array_free (pending, [i]); |
1010 | #if EV_IDLE_ENABLE |
1177 | #if EV_IDLE_ENABLE |
1011 | array_free (idle, [i]); |
1178 | array_free (idle, [i]); |
1012 | #endif |
1179 | #endif |
1013 | } |
1180 | } |
|
|
1181 | |
|
|
1182 | ev_free (anfds); anfdmax = 0; |
1014 | |
1183 | |
1015 | /* have to use the microsoft-never-gets-it-right macro */ |
1184 | /* have to use the microsoft-never-gets-it-right macro */ |
1016 | array_free (fdchange, EMPTY); |
1185 | array_free (fdchange, EMPTY); |
1017 | array_free (timer, EMPTY); |
1186 | array_free (timer, EMPTY); |
1018 | #if EV_PERIODIC_ENABLE |
1187 | #if EV_PERIODIC_ENABLE |
1019 | array_free (periodic, EMPTY); |
1188 | array_free (periodic, EMPTY); |
1020 | #endif |
1189 | #endif |
|
|
1190 | #if EV_FORK_ENABLE |
|
|
1191 | array_free (fork, EMPTY); |
|
|
1192 | #endif |
1021 | array_free (prepare, EMPTY); |
1193 | array_free (prepare, EMPTY); |
1022 | array_free (check, EMPTY); |
1194 | array_free (check, EMPTY); |
|
|
1195 | #if EV_ASYNC_ENABLE |
|
|
1196 | array_free (async, EMPTY); |
|
|
1197 | #endif |
1023 | |
1198 | |
1024 | backend = 0; |
1199 | backend = 0; |
1025 | } |
1200 | } |
1026 | |
1201 | |
1027 | void inline_size infy_fork (EV_P); |
1202 | void inline_size infy_fork (EV_P); |
… | |
… | |
1040 | #endif |
1215 | #endif |
1041 | #if EV_USE_INOTIFY |
1216 | #if EV_USE_INOTIFY |
1042 | infy_fork (EV_A); |
1217 | infy_fork (EV_A); |
1043 | #endif |
1218 | #endif |
1044 | |
1219 | |
1045 | if (ev_is_active (&sigev)) |
1220 | if (ev_is_active (&pipeev)) |
1046 | { |
1221 | { |
1047 | /* default loop */ |
1222 | /* this "locks" the handlers against writing to the pipe */ |
|
|
1223 | /* while we modify the fd vars */ |
|
|
1224 | gotsig = 1; |
|
|
1225 | #if EV_ASYNC_ENABLE |
|
|
1226 | gotasync = 1; |
|
|
1227 | #endif |
1048 | |
1228 | |
1049 | ev_ref (EV_A); |
1229 | ev_ref (EV_A); |
1050 | ev_io_stop (EV_A_ &sigev); |
1230 | ev_io_stop (EV_A_ &pipeev); |
1051 | close (sigpipe [0]); |
1231 | close (evpipe [0]); |
1052 | close (sigpipe [1]); |
1232 | close (evpipe [1]); |
1053 | |
1233 | |
1054 | while (pipe (sigpipe)) |
|
|
1055 | syserr ("(libev) error creating pipe"); |
|
|
1056 | |
|
|
1057 | siginit (EV_A); |
1234 | evpipe_init (EV_A); |
|
|
1235 | /* now iterate over everything, in case we missed something */ |
|
|
1236 | pipecb (EV_A_ &pipeev, EV_READ); |
1058 | } |
1237 | } |
1059 | |
1238 | |
1060 | postfork = 0; |
1239 | postfork = 0; |
1061 | } |
1240 | } |
1062 | |
1241 | |
… | |
… | |
1084 | } |
1263 | } |
1085 | |
1264 | |
1086 | void |
1265 | void |
1087 | ev_loop_fork (EV_P) |
1266 | ev_loop_fork (EV_P) |
1088 | { |
1267 | { |
1089 | postfork = 1; |
1268 | postfork = 1; /* must be in line with ev_default_fork */ |
1090 | } |
1269 | } |
1091 | |
1270 | |
1092 | #endif |
1271 | #endif |
1093 | |
1272 | |
1094 | #if EV_MULTIPLICITY |
1273 | #if EV_MULTIPLICITY |
… | |
… | |
1097 | #else |
1276 | #else |
1098 | int |
1277 | int |
1099 | ev_default_loop (unsigned int flags) |
1278 | ev_default_loop (unsigned int flags) |
1100 | #endif |
1279 | #endif |
1101 | { |
1280 | { |
1102 | if (sigpipe [0] == sigpipe [1]) |
|
|
1103 | if (pipe (sigpipe)) |
|
|
1104 | return 0; |
|
|
1105 | |
|
|
1106 | if (!ev_default_loop_ptr) |
1281 | if (!ev_default_loop_ptr) |
1107 | { |
1282 | { |
1108 | #if EV_MULTIPLICITY |
1283 | #if EV_MULTIPLICITY |
1109 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1284 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1110 | #else |
1285 | #else |
… | |
… | |
1113 | |
1288 | |
1114 | loop_init (EV_A_ flags); |
1289 | loop_init (EV_A_ flags); |
1115 | |
1290 | |
1116 | if (ev_backend (EV_A)) |
1291 | if (ev_backend (EV_A)) |
1117 | { |
1292 | { |
1118 | siginit (EV_A); |
|
|
1119 | |
|
|
1120 | #ifndef _WIN32 |
1293 | #ifndef _WIN32 |
1121 | ev_signal_init (&childev, childcb, SIGCHLD); |
1294 | ev_signal_init (&childev, childcb, SIGCHLD); |
1122 | ev_set_priority (&childev, EV_MAXPRI); |
1295 | ev_set_priority (&childev, EV_MAXPRI); |
1123 | ev_signal_start (EV_A_ &childev); |
1296 | ev_signal_start (EV_A_ &childev); |
1124 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1297 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
… | |
… | |
1141 | #ifndef _WIN32 |
1314 | #ifndef _WIN32 |
1142 | ev_ref (EV_A); /* child watcher */ |
1315 | ev_ref (EV_A); /* child watcher */ |
1143 | ev_signal_stop (EV_A_ &childev); |
1316 | ev_signal_stop (EV_A_ &childev); |
1144 | #endif |
1317 | #endif |
1145 | |
1318 | |
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); |
1319 | loop_destroy (EV_A); |
1153 | } |
1320 | } |
1154 | |
1321 | |
1155 | void |
1322 | void |
1156 | ev_default_fork (void) |
1323 | ev_default_fork (void) |
… | |
… | |
1158 | #if EV_MULTIPLICITY |
1325 | #if EV_MULTIPLICITY |
1159 | struct ev_loop *loop = ev_default_loop_ptr; |
1326 | struct ev_loop *loop = ev_default_loop_ptr; |
1160 | #endif |
1327 | #endif |
1161 | |
1328 | |
1162 | if (backend) |
1329 | if (backend) |
1163 | postfork = 1; |
1330 | postfork = 1; /* must be in line with ev_loop_fork */ |
1164 | } |
1331 | } |
1165 | |
1332 | |
1166 | /*****************************************************************************/ |
1333 | /*****************************************************************************/ |
|
|
1334 | |
|
|
1335 | void |
|
|
1336 | ev_invoke (EV_P_ void *w, int revents) |
|
|
1337 | { |
|
|
1338 | EV_CB_INVOKE ((W)w, revents); |
|
|
1339 | } |
1167 | |
1340 | |
1168 | void inline_speed |
1341 | void inline_speed |
1169 | call_pending (EV_P) |
1342 | call_pending (EV_P) |
1170 | { |
1343 | { |
1171 | int pri; |
1344 | int pri; |
… | |
… | |
1188 | void inline_size |
1361 | void inline_size |
1189 | timers_reify (EV_P) |
1362 | timers_reify (EV_P) |
1190 | { |
1363 | { |
1191 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
1364 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
1192 | { |
1365 | { |
1193 | ev_timer *w = timers [0]; |
1366 | ev_timer *w = (ev_timer *)timers [0]; |
1194 | |
1367 | |
1195 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
1368 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
1196 | |
1369 | |
1197 | /* first reschedule or stop timer */ |
1370 | /* first reschedule or stop timer */ |
1198 | if (w->repeat) |
1371 | if (w->repeat) |
… | |
… | |
1201 | |
1374 | |
1202 | ((WT)w)->at += w->repeat; |
1375 | ((WT)w)->at += w->repeat; |
1203 | if (((WT)w)->at < mn_now) |
1376 | if (((WT)w)->at < mn_now) |
1204 | ((WT)w)->at = mn_now; |
1377 | ((WT)w)->at = mn_now; |
1205 | |
1378 | |
1206 | downheap ((WT *)timers, timercnt, 0); |
1379 | downheap (timers, timercnt, 0); |
1207 | } |
1380 | } |
1208 | else |
1381 | else |
1209 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1382 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1210 | |
1383 | |
1211 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
1384 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
… | |
… | |
1216 | void inline_size |
1389 | void inline_size |
1217 | periodics_reify (EV_P) |
1390 | periodics_reify (EV_P) |
1218 | { |
1391 | { |
1219 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
1392 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
1220 | { |
1393 | { |
1221 | ev_periodic *w = periodics [0]; |
1394 | ev_periodic *w = (ev_periodic *)periodics [0]; |
1222 | |
1395 | |
1223 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
1396 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
1224 | |
1397 | |
1225 | /* first reschedule or stop timer */ |
1398 | /* first reschedule or stop timer */ |
1226 | if (w->reschedule_cb) |
1399 | if (w->reschedule_cb) |
1227 | { |
1400 | { |
1228 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); |
1401 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); |
1229 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
1402 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
1230 | downheap ((WT *)periodics, periodiccnt, 0); |
1403 | downheap (periodics, periodiccnt, 0); |
1231 | } |
1404 | } |
1232 | else if (w->interval) |
1405 | else if (w->interval) |
1233 | { |
1406 | { |
1234 | ((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
1407 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1408 | if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval; |
1235 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
1409 | 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); |
1410 | downheap (periodics, periodiccnt, 0); |
1237 | } |
1411 | } |
1238 | else |
1412 | else |
1239 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1413 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1240 | |
1414 | |
1241 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
1415 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
… | |
… | |
1248 | int i; |
1422 | int i; |
1249 | |
1423 | |
1250 | /* adjust periodics after time jump */ |
1424 | /* adjust periodics after time jump */ |
1251 | for (i = 0; i < periodiccnt; ++i) |
1425 | for (i = 0; i < periodiccnt; ++i) |
1252 | { |
1426 | { |
1253 | ev_periodic *w = periodics [i]; |
1427 | ev_periodic *w = (ev_periodic *)periodics [i]; |
1254 | |
1428 | |
1255 | if (w->reschedule_cb) |
1429 | if (w->reschedule_cb) |
1256 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1430 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1257 | else if (w->interval) |
1431 | else if (w->interval) |
1258 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1432 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1259 | } |
1433 | } |
1260 | |
1434 | |
1261 | /* now rebuild the heap */ |
1435 | /* now rebuild the heap */ |
1262 | for (i = periodiccnt >> 1; i--; ) |
1436 | for (i = periodiccnt >> 1; i--; ) |
1263 | downheap ((WT *)periodics, periodiccnt, i); |
1437 | downheap (periodics, periodiccnt, i); |
1264 | } |
1438 | } |
1265 | #endif |
1439 | #endif |
1266 | |
1440 | |
1267 | #if EV_IDLE_ENABLE |
1441 | #if EV_IDLE_ENABLE |
1268 | void inline_size |
1442 | void inline_size |
… | |
… | |
1285 | } |
1459 | } |
1286 | } |
1460 | } |
1287 | } |
1461 | } |
1288 | #endif |
1462 | #endif |
1289 | |
1463 | |
1290 | int inline_size |
1464 | void inline_speed |
1291 | time_update_monotonic (EV_P) |
1465 | time_update (EV_P_ ev_tstamp max_block) |
1292 | { |
1466 | { |
|
|
1467 | int i; |
|
|
1468 | |
|
|
1469 | #if EV_USE_MONOTONIC |
|
|
1470 | if (expect_true (have_monotonic)) |
|
|
1471 | { |
|
|
1472 | ev_tstamp odiff = rtmn_diff; |
|
|
1473 | |
1293 | mn_now = get_clock (); |
1474 | mn_now = get_clock (); |
1294 | |
1475 | |
|
|
1476 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
|
|
1477 | /* interpolate in the meantime */ |
1295 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1478 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1296 | { |
1479 | { |
1297 | ev_rt_now = rtmn_diff + mn_now; |
1480 | ev_rt_now = rtmn_diff + mn_now; |
1298 | return 0; |
1481 | return; |
1299 | } |
1482 | } |
1300 | else |
1483 | |
1301 | { |
|
|
1302 | now_floor = mn_now; |
1484 | now_floor = mn_now; |
1303 | ev_rt_now = ev_time (); |
1485 | ev_rt_now = ev_time (); |
1304 | return 1; |
|
|
1305 | } |
|
|
1306 | } |
|
|
1307 | |
1486 | |
1308 | void inline_size |
1487 | /* loop a few times, before making important decisions. |
1309 | time_update (EV_P) |
1488 | * on the choice of "4": one iteration isn't enough, |
1310 | { |
1489 | * in case we get preempted during the calls to |
1311 | int i; |
1490 | * ev_time and get_clock. a second call is almost guaranteed |
1312 | |
1491 | * to succeed in that case, though. and looping a few more times |
1313 | #if EV_USE_MONOTONIC |
1492 | * doesn't hurt either as we only do this on time-jumps or |
1314 | if (expect_true (have_monotonic)) |
1493 | * in the unlikely event of having been preempted here. |
1315 | { |
1494 | */ |
1316 | if (time_update_monotonic (EV_A)) |
1495 | for (i = 4; --i; ) |
1317 | { |
1496 | { |
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; |
1497 | rtmn_diff = ev_rt_now - mn_now; |
1331 | |
1498 | |
1332 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1499 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1333 | return; /* all is well */ |
1500 | return; /* all is well */ |
1334 | |
1501 | |
1335 | ev_rt_now = ev_time (); |
1502 | ev_rt_now = ev_time (); |
1336 | mn_now = get_clock (); |
1503 | mn_now = get_clock (); |
1337 | now_floor = mn_now; |
1504 | now_floor = mn_now; |
1338 | } |
1505 | } |
1339 | |
1506 | |
1340 | # if EV_PERIODIC_ENABLE |
1507 | # if EV_PERIODIC_ENABLE |
1341 | periodics_reschedule (EV_A); |
1508 | periodics_reschedule (EV_A); |
1342 | # endif |
1509 | # endif |
1343 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
1510 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
1344 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1511 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1345 | } |
|
|
1346 | } |
1512 | } |
1347 | else |
1513 | else |
1348 | #endif |
1514 | #endif |
1349 | { |
1515 | { |
1350 | ev_rt_now = ev_time (); |
1516 | ev_rt_now = ev_time (); |
1351 | |
1517 | |
1352 | if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
1518 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
1353 | { |
1519 | { |
1354 | #if EV_PERIODIC_ENABLE |
1520 | #if EV_PERIODIC_ENABLE |
1355 | periodics_reschedule (EV_A); |
1521 | periodics_reschedule (EV_A); |
1356 | #endif |
1522 | #endif |
1357 | |
|
|
1358 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
1523 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
1359 | for (i = 0; i < timercnt; ++i) |
1524 | for (i = 0; i < timercnt; ++i) |
1360 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
1525 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
1361 | } |
1526 | } |
1362 | |
1527 | |
… | |
… | |
1406 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
1571 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
1407 | call_pending (EV_A); |
1572 | call_pending (EV_A); |
1408 | } |
1573 | } |
1409 | #endif |
1574 | #endif |
1410 | |
1575 | |
1411 | /* queue check watchers (and execute them) */ |
1576 | /* queue prepare watchers (and execute them) */ |
1412 | if (expect_false (preparecnt)) |
1577 | if (expect_false (preparecnt)) |
1413 | { |
1578 | { |
1414 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1579 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1415 | call_pending (EV_A); |
1580 | call_pending (EV_A); |
1416 | } |
1581 | } |
… | |
… | |
1425 | /* update fd-related kernel structures */ |
1590 | /* update fd-related kernel structures */ |
1426 | fd_reify (EV_A); |
1591 | fd_reify (EV_A); |
1427 | |
1592 | |
1428 | /* calculate blocking time */ |
1593 | /* calculate blocking time */ |
1429 | { |
1594 | { |
1430 | ev_tstamp block; |
1595 | ev_tstamp waittime = 0.; |
|
|
1596 | ev_tstamp sleeptime = 0.; |
1431 | |
1597 | |
1432 | if (expect_false (flags & EVLOOP_NONBLOCK || idleall || !activecnt)) |
1598 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
1433 | block = 0.; /* do not block at all */ |
|
|
1434 | else |
|
|
1435 | { |
1599 | { |
1436 | /* update time to cancel out callback processing overhead */ |
1600 | /* 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); |
1601 | time_update (EV_A_ 1e100); |
1440 | else |
|
|
1441 | #endif |
|
|
1442 | { |
|
|
1443 | ev_rt_now = ev_time (); |
|
|
1444 | mn_now = ev_rt_now; |
|
|
1445 | } |
|
|
1446 | |
1602 | |
1447 | block = MAX_BLOCKTIME; |
1603 | waittime = MAX_BLOCKTIME; |
1448 | |
1604 | |
1449 | if (timercnt) |
1605 | if (timercnt) |
1450 | { |
1606 | { |
1451 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
1607 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
1452 | if (block > to) block = to; |
1608 | if (waittime > to) waittime = to; |
1453 | } |
1609 | } |
1454 | |
1610 | |
1455 | #if EV_PERIODIC_ENABLE |
1611 | #if EV_PERIODIC_ENABLE |
1456 | if (periodiccnt) |
1612 | if (periodiccnt) |
1457 | { |
1613 | { |
1458 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
1614 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
1459 | if (block > to) block = to; |
1615 | if (waittime > to) waittime = to; |
1460 | } |
1616 | } |
1461 | #endif |
1617 | #endif |
1462 | |
1618 | |
1463 | if (expect_false (block < 0.)) block = 0.; |
1619 | if (expect_false (waittime < timeout_blocktime)) |
|
|
1620 | waittime = timeout_blocktime; |
|
|
1621 | |
|
|
1622 | sleeptime = waittime - backend_fudge; |
|
|
1623 | |
|
|
1624 | if (expect_true (sleeptime > io_blocktime)) |
|
|
1625 | sleeptime = io_blocktime; |
|
|
1626 | |
|
|
1627 | if (sleeptime) |
|
|
1628 | { |
|
|
1629 | ev_sleep (sleeptime); |
|
|
1630 | waittime -= sleeptime; |
|
|
1631 | } |
1464 | } |
1632 | } |
1465 | |
1633 | |
1466 | ++loop_count; |
1634 | ++loop_count; |
1467 | backend_poll (EV_A_ block); |
1635 | backend_poll (EV_A_ waittime); |
|
|
1636 | |
|
|
1637 | /* update ev_rt_now, do magic */ |
|
|
1638 | time_update (EV_A_ waittime + sleeptime); |
1468 | } |
1639 | } |
1469 | |
|
|
1470 | /* update ev_rt_now, do magic */ |
|
|
1471 | time_update (EV_A); |
|
|
1472 | |
1640 | |
1473 | /* queue pending timers and reschedule them */ |
1641 | /* queue pending timers and reschedule them */ |
1474 | timers_reify (EV_A); /* relative timers called last */ |
1642 | timers_reify (EV_A); /* relative timers called last */ |
1475 | #if EV_PERIODIC_ENABLE |
1643 | #if EV_PERIODIC_ENABLE |
1476 | periodics_reify (EV_A); /* absolute timers called first */ |
1644 | periodics_reify (EV_A); /* absolute timers called first */ |
… | |
… | |
1532 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1700 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1533 | w->pending = 0; |
1701 | w->pending = 0; |
1534 | } |
1702 | } |
1535 | } |
1703 | } |
1536 | |
1704 | |
1537 | void |
1705 | int |
1538 | ev_clear_pending (EV_P_ void *w, int invoke) |
1706 | ev_clear_pending (EV_P_ void *w) |
1539 | { |
1707 | { |
1540 | W w_ = (W)w; |
1708 | W w_ = (W)w; |
1541 | int pending = w_->pending; |
1709 | int pending = w_->pending; |
1542 | |
1710 | |
1543 | if (pending) |
1711 | if (expect_true (pending)) |
1544 | { |
1712 | { |
1545 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
1713 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
1546 | |
|
|
1547 | w_->pending = 0; |
1714 | w_->pending = 0; |
1548 | p->w = 0; |
1715 | p->w = 0; |
1549 | |
1716 | return p->events; |
1550 | if (invoke) |
|
|
1551 | EV_CB_INVOKE (w_, p->events); |
|
|
1552 | } |
1717 | } |
|
|
1718 | else |
|
|
1719 | return 0; |
1553 | } |
1720 | } |
1554 | |
1721 | |
1555 | void inline_size |
1722 | void inline_size |
1556 | pri_adjust (EV_P_ W w) |
1723 | pri_adjust (EV_P_ W w) |
1557 | { |
1724 | { |
… | |
… | |
1576 | w->active = 0; |
1743 | w->active = 0; |
1577 | } |
1744 | } |
1578 | |
1745 | |
1579 | /*****************************************************************************/ |
1746 | /*****************************************************************************/ |
1580 | |
1747 | |
1581 | void |
1748 | void noinline |
1582 | ev_io_start (EV_P_ ev_io *w) |
1749 | ev_io_start (EV_P_ ev_io *w) |
1583 | { |
1750 | { |
1584 | int fd = w->fd; |
1751 | int fd = w->fd; |
1585 | |
1752 | |
1586 | if (expect_false (ev_is_active (w))) |
1753 | if (expect_false (ev_is_active (w))) |
… | |
… | |
1588 | |
1755 | |
1589 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1756 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1590 | |
1757 | |
1591 | ev_start (EV_A_ (W)w, 1); |
1758 | ev_start (EV_A_ (W)w, 1); |
1592 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
1759 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
1593 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1760 | wlist_add (&anfds[fd].head, (WL)w); |
1594 | |
1761 | |
1595 | fd_change (EV_A_ fd); |
1762 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
|
|
1763 | w->events &= ~EV_IOFDSET; |
1596 | } |
1764 | } |
1597 | |
1765 | |
1598 | void |
1766 | void noinline |
1599 | ev_io_stop (EV_P_ ev_io *w) |
1767 | ev_io_stop (EV_P_ ev_io *w) |
1600 | { |
1768 | { |
1601 | clear_pending (EV_A_ (W)w); |
1769 | clear_pending (EV_A_ (W)w); |
1602 | if (expect_false (!ev_is_active (w))) |
1770 | if (expect_false (!ev_is_active (w))) |
1603 | return; |
1771 | return; |
1604 | |
1772 | |
1605 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
1773 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
1606 | |
1774 | |
1607 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
1775 | wlist_del (&anfds[w->fd].head, (WL)w); |
1608 | ev_stop (EV_A_ (W)w); |
1776 | ev_stop (EV_A_ (W)w); |
1609 | |
1777 | |
1610 | fd_change (EV_A_ w->fd); |
1778 | fd_change (EV_A_ w->fd, 1); |
1611 | } |
1779 | } |
1612 | |
1780 | |
1613 | void |
1781 | void noinline |
1614 | ev_timer_start (EV_P_ ev_timer *w) |
1782 | ev_timer_start (EV_P_ ev_timer *w) |
1615 | { |
1783 | { |
1616 | if (expect_false (ev_is_active (w))) |
1784 | if (expect_false (ev_is_active (w))) |
1617 | return; |
1785 | return; |
1618 | |
1786 | |
1619 | ((WT)w)->at += mn_now; |
1787 | ((WT)w)->at += mn_now; |
1620 | |
1788 | |
1621 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1789 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1622 | |
1790 | |
1623 | ev_start (EV_A_ (W)w, ++timercnt); |
1791 | ev_start (EV_A_ (W)w, ++timercnt); |
1624 | array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2); |
1792 | array_needsize (WT, timers, timermax, timercnt, EMPTY2); |
1625 | timers [timercnt - 1] = w; |
1793 | timers [timercnt - 1] = (WT)w; |
1626 | upheap ((WT *)timers, timercnt - 1); |
1794 | upheap (timers, timercnt - 1); |
1627 | |
1795 | |
1628 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
1796 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
1629 | } |
1797 | } |
1630 | |
1798 | |
1631 | void |
1799 | void noinline |
1632 | ev_timer_stop (EV_P_ ev_timer *w) |
1800 | ev_timer_stop (EV_P_ ev_timer *w) |
1633 | { |
1801 | { |
1634 | clear_pending (EV_A_ (W)w); |
1802 | clear_pending (EV_A_ (W)w); |
1635 | if (expect_false (!ev_is_active (w))) |
1803 | if (expect_false (!ev_is_active (w))) |
1636 | return; |
1804 | return; |
1637 | |
1805 | |
1638 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1806 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w)); |
1639 | |
1807 | |
1640 | { |
1808 | { |
1641 | int active = ((W)w)->active; |
1809 | int active = ((W)w)->active; |
1642 | |
1810 | |
1643 | if (expect_true (--active < --timercnt)) |
1811 | if (expect_true (--active < --timercnt)) |
1644 | { |
1812 | { |
1645 | timers [active] = timers [timercnt]; |
1813 | timers [active] = timers [timercnt]; |
1646 | adjustheap ((WT *)timers, timercnt, active); |
1814 | adjustheap (timers, timercnt, active); |
1647 | } |
1815 | } |
1648 | } |
1816 | } |
1649 | |
1817 | |
1650 | ((WT)w)->at -= mn_now; |
1818 | ((WT)w)->at -= mn_now; |
1651 | |
1819 | |
1652 | ev_stop (EV_A_ (W)w); |
1820 | ev_stop (EV_A_ (W)w); |
1653 | } |
1821 | } |
1654 | |
1822 | |
1655 | void |
1823 | void noinline |
1656 | ev_timer_again (EV_P_ ev_timer *w) |
1824 | ev_timer_again (EV_P_ ev_timer *w) |
1657 | { |
1825 | { |
1658 | if (ev_is_active (w)) |
1826 | if (ev_is_active (w)) |
1659 | { |
1827 | { |
1660 | if (w->repeat) |
1828 | if (w->repeat) |
1661 | { |
1829 | { |
1662 | ((WT)w)->at = mn_now + w->repeat; |
1830 | ((WT)w)->at = mn_now + w->repeat; |
1663 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1831 | adjustheap (timers, timercnt, ((W)w)->active - 1); |
1664 | } |
1832 | } |
1665 | else |
1833 | else |
1666 | ev_timer_stop (EV_A_ w); |
1834 | ev_timer_stop (EV_A_ w); |
1667 | } |
1835 | } |
1668 | else if (w->repeat) |
1836 | else if (w->repeat) |
… | |
… | |
1671 | ev_timer_start (EV_A_ w); |
1839 | ev_timer_start (EV_A_ w); |
1672 | } |
1840 | } |
1673 | } |
1841 | } |
1674 | |
1842 | |
1675 | #if EV_PERIODIC_ENABLE |
1843 | #if EV_PERIODIC_ENABLE |
1676 | void |
1844 | void noinline |
1677 | ev_periodic_start (EV_P_ ev_periodic *w) |
1845 | ev_periodic_start (EV_P_ ev_periodic *w) |
1678 | { |
1846 | { |
1679 | if (expect_false (ev_is_active (w))) |
1847 | if (expect_false (ev_is_active (w))) |
1680 | return; |
1848 | return; |
1681 | |
1849 | |
… | |
… | |
1683 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1851 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1684 | else if (w->interval) |
1852 | else if (w->interval) |
1685 | { |
1853 | { |
1686 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1854 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1687 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1855 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1688 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1856 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1689 | } |
1857 | } |
|
|
1858 | else |
|
|
1859 | ((WT)w)->at = w->offset; |
1690 | |
1860 | |
1691 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1861 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1692 | array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); |
1862 | array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2); |
1693 | periodics [periodiccnt - 1] = w; |
1863 | periodics [periodiccnt - 1] = (WT)w; |
1694 | upheap ((WT *)periodics, periodiccnt - 1); |
1864 | upheap (periodics, periodiccnt - 1); |
1695 | |
1865 | |
1696 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
1866 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
1697 | } |
1867 | } |
1698 | |
1868 | |
1699 | void |
1869 | void noinline |
1700 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1870 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1701 | { |
1871 | { |
1702 | clear_pending (EV_A_ (W)w); |
1872 | clear_pending (EV_A_ (W)w); |
1703 | if (expect_false (!ev_is_active (w))) |
1873 | if (expect_false (!ev_is_active (w))) |
1704 | return; |
1874 | return; |
1705 | |
1875 | |
1706 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1876 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w)); |
1707 | |
1877 | |
1708 | { |
1878 | { |
1709 | int active = ((W)w)->active; |
1879 | int active = ((W)w)->active; |
1710 | |
1880 | |
1711 | if (expect_true (--active < --periodiccnt)) |
1881 | if (expect_true (--active < --periodiccnt)) |
1712 | { |
1882 | { |
1713 | periodics [active] = periodics [periodiccnt]; |
1883 | periodics [active] = periodics [periodiccnt]; |
1714 | adjustheap ((WT *)periodics, periodiccnt, active); |
1884 | adjustheap (periodics, periodiccnt, active); |
1715 | } |
1885 | } |
1716 | } |
1886 | } |
1717 | |
1887 | |
1718 | ev_stop (EV_A_ (W)w); |
1888 | ev_stop (EV_A_ (W)w); |
1719 | } |
1889 | } |
1720 | |
1890 | |
1721 | void |
1891 | void noinline |
1722 | ev_periodic_again (EV_P_ ev_periodic *w) |
1892 | ev_periodic_again (EV_P_ ev_periodic *w) |
1723 | { |
1893 | { |
1724 | /* TODO: use adjustheap and recalculation */ |
1894 | /* TODO: use adjustheap and recalculation */ |
1725 | ev_periodic_stop (EV_A_ w); |
1895 | ev_periodic_stop (EV_A_ w); |
1726 | ev_periodic_start (EV_A_ w); |
1896 | ev_periodic_start (EV_A_ w); |
… | |
… | |
1729 | |
1899 | |
1730 | #ifndef SA_RESTART |
1900 | #ifndef SA_RESTART |
1731 | # define SA_RESTART 0 |
1901 | # define SA_RESTART 0 |
1732 | #endif |
1902 | #endif |
1733 | |
1903 | |
1734 | void |
1904 | void noinline |
1735 | ev_signal_start (EV_P_ ev_signal *w) |
1905 | ev_signal_start (EV_P_ ev_signal *w) |
1736 | { |
1906 | { |
1737 | #if EV_MULTIPLICITY |
1907 | #if EV_MULTIPLICITY |
1738 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1908 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1739 | #endif |
1909 | #endif |
1740 | if (expect_false (ev_is_active (w))) |
1910 | if (expect_false (ev_is_active (w))) |
1741 | return; |
1911 | return; |
1742 | |
1912 | |
1743 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1913 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1744 | |
1914 | |
|
|
1915 | evpipe_init (EV_A); |
|
|
1916 | |
|
|
1917 | { |
|
|
1918 | #ifndef _WIN32 |
|
|
1919 | sigset_t full, prev; |
|
|
1920 | sigfillset (&full); |
|
|
1921 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
1922 | #endif |
|
|
1923 | |
|
|
1924 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
|
|
1925 | |
|
|
1926 | #ifndef _WIN32 |
|
|
1927 | sigprocmask (SIG_SETMASK, &prev, 0); |
|
|
1928 | #endif |
|
|
1929 | } |
|
|
1930 | |
1745 | ev_start (EV_A_ (W)w, 1); |
1931 | ev_start (EV_A_ (W)w, 1); |
1746 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
|
|
1747 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
1932 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
1748 | |
1933 | |
1749 | if (!((WL)w)->next) |
1934 | if (!((WL)w)->next) |
1750 | { |
1935 | { |
1751 | #if _WIN32 |
1936 | #if _WIN32 |
1752 | signal (w->signum, sighandler); |
1937 | signal (w->signum, sighandler); |
… | |
… | |
1758 | sigaction (w->signum, &sa, 0); |
1943 | sigaction (w->signum, &sa, 0); |
1759 | #endif |
1944 | #endif |
1760 | } |
1945 | } |
1761 | } |
1946 | } |
1762 | |
1947 | |
1763 | void |
1948 | void noinline |
1764 | ev_signal_stop (EV_P_ ev_signal *w) |
1949 | ev_signal_stop (EV_P_ ev_signal *w) |
1765 | { |
1950 | { |
1766 | clear_pending (EV_A_ (W)w); |
1951 | clear_pending (EV_A_ (W)w); |
1767 | if (expect_false (!ev_is_active (w))) |
1952 | if (expect_false (!ev_is_active (w))) |
1768 | return; |
1953 | return; |
1769 | |
1954 | |
1770 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
1955 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
1771 | ev_stop (EV_A_ (W)w); |
1956 | ev_stop (EV_A_ (W)w); |
1772 | |
1957 | |
1773 | if (!signals [w->signum - 1].head) |
1958 | if (!signals [w->signum - 1].head) |
1774 | signal (w->signum, SIG_DFL); |
1959 | signal (w->signum, SIG_DFL); |
1775 | } |
1960 | } |
… | |
… | |
1782 | #endif |
1967 | #endif |
1783 | if (expect_false (ev_is_active (w))) |
1968 | if (expect_false (ev_is_active (w))) |
1784 | return; |
1969 | return; |
1785 | |
1970 | |
1786 | ev_start (EV_A_ (W)w, 1); |
1971 | ev_start (EV_A_ (W)w, 1); |
1787 | wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1972 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1788 | } |
1973 | } |
1789 | |
1974 | |
1790 | void |
1975 | void |
1791 | ev_child_stop (EV_P_ ev_child *w) |
1976 | ev_child_stop (EV_P_ ev_child *w) |
1792 | { |
1977 | { |
1793 | clear_pending (EV_A_ (W)w); |
1978 | clear_pending (EV_A_ (W)w); |
1794 | if (expect_false (!ev_is_active (w))) |
1979 | if (expect_false (!ev_is_active (w))) |
1795 | return; |
1980 | return; |
1796 | |
1981 | |
1797 | wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1982 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1798 | ev_stop (EV_A_ (W)w); |
1983 | ev_stop (EV_A_ (W)w); |
1799 | } |
1984 | } |
1800 | |
1985 | |
1801 | #if EV_STAT_ENABLE |
1986 | #if EV_STAT_ENABLE |
1802 | |
1987 | |
… | |
… | |
2144 | |
2329 | |
2145 | #if EV_EMBED_ENABLE |
2330 | #if EV_EMBED_ENABLE |
2146 | void noinline |
2331 | void noinline |
2147 | ev_embed_sweep (EV_P_ ev_embed *w) |
2332 | ev_embed_sweep (EV_P_ ev_embed *w) |
2148 | { |
2333 | { |
2149 | ev_loop (w->loop, EVLOOP_NONBLOCK); |
2334 | ev_loop (w->other, EVLOOP_NONBLOCK); |
2150 | } |
2335 | } |
2151 | |
2336 | |
2152 | static void |
2337 | static void |
2153 | embed_cb (EV_P_ ev_io *io, int revents) |
2338 | embed_io_cb (EV_P_ ev_io *io, int revents) |
2154 | { |
2339 | { |
2155 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
2340 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
2156 | |
2341 | |
2157 | if (ev_cb (w)) |
2342 | if (ev_cb (w)) |
2158 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2343 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2159 | else |
2344 | else |
2160 | ev_embed_sweep (loop, w); |
2345 | ev_loop (w->other, EVLOOP_NONBLOCK); |
2161 | } |
2346 | } |
|
|
2347 | |
|
|
2348 | static void |
|
|
2349 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
|
|
2350 | { |
|
|
2351 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
|
|
2352 | |
|
|
2353 | { |
|
|
2354 | struct ev_loop *loop = w->other; |
|
|
2355 | |
|
|
2356 | while (fdchangecnt) |
|
|
2357 | { |
|
|
2358 | fd_reify (EV_A); |
|
|
2359 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
2360 | } |
|
|
2361 | } |
|
|
2362 | } |
|
|
2363 | |
|
|
2364 | #if 0 |
|
|
2365 | static void |
|
|
2366 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
|
|
2367 | { |
|
|
2368 | ev_idle_stop (EV_A_ idle); |
|
|
2369 | } |
|
|
2370 | #endif |
2162 | |
2371 | |
2163 | void |
2372 | void |
2164 | ev_embed_start (EV_P_ ev_embed *w) |
2373 | ev_embed_start (EV_P_ ev_embed *w) |
2165 | { |
2374 | { |
2166 | if (expect_false (ev_is_active (w))) |
2375 | if (expect_false (ev_is_active (w))) |
2167 | return; |
2376 | return; |
2168 | |
2377 | |
2169 | { |
2378 | { |
2170 | struct ev_loop *loop = w->loop; |
2379 | struct ev_loop *loop = w->other; |
2171 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2380 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2172 | ev_io_init (&w->io, embed_cb, backend_fd, EV_READ); |
2381 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2173 | } |
2382 | } |
2174 | |
2383 | |
2175 | ev_set_priority (&w->io, ev_priority (w)); |
2384 | ev_set_priority (&w->io, ev_priority (w)); |
2176 | ev_io_start (EV_A_ &w->io); |
2385 | ev_io_start (EV_A_ &w->io); |
2177 | |
2386 | |
|
|
2387 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
|
|
2388 | ev_set_priority (&w->prepare, EV_MINPRI); |
|
|
2389 | ev_prepare_start (EV_A_ &w->prepare); |
|
|
2390 | |
|
|
2391 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
|
|
2392 | |
2178 | ev_start (EV_A_ (W)w, 1); |
2393 | ev_start (EV_A_ (W)w, 1); |
2179 | } |
2394 | } |
2180 | |
2395 | |
2181 | void |
2396 | void |
2182 | ev_embed_stop (EV_P_ ev_embed *w) |
2397 | ev_embed_stop (EV_P_ ev_embed *w) |
… | |
… | |
2184 | clear_pending (EV_A_ (W)w); |
2399 | clear_pending (EV_A_ (W)w); |
2185 | if (expect_false (!ev_is_active (w))) |
2400 | if (expect_false (!ev_is_active (w))) |
2186 | return; |
2401 | return; |
2187 | |
2402 | |
2188 | ev_io_stop (EV_A_ &w->io); |
2403 | ev_io_stop (EV_A_ &w->io); |
|
|
2404 | ev_prepare_stop (EV_A_ &w->prepare); |
2189 | |
2405 | |
2190 | ev_stop (EV_A_ (W)w); |
2406 | ev_stop (EV_A_ (W)w); |
2191 | } |
2407 | } |
2192 | #endif |
2408 | #endif |
2193 | |
2409 | |
… | |
… | |
2218 | |
2434 | |
2219 | ev_stop (EV_A_ (W)w); |
2435 | ev_stop (EV_A_ (W)w); |
2220 | } |
2436 | } |
2221 | #endif |
2437 | #endif |
2222 | |
2438 | |
|
|
2439 | #if EV_ASYNC_ENABLE |
|
|
2440 | void |
|
|
2441 | ev_async_start (EV_P_ ev_async *w) |
|
|
2442 | { |
|
|
2443 | if (expect_false (ev_is_active (w))) |
|
|
2444 | return; |
|
|
2445 | |
|
|
2446 | evpipe_init (EV_A); |
|
|
2447 | |
|
|
2448 | ev_start (EV_A_ (W)w, ++asynccnt); |
|
|
2449 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
|
|
2450 | asyncs [asynccnt - 1] = w; |
|
|
2451 | } |
|
|
2452 | |
|
|
2453 | void |
|
|
2454 | ev_async_stop (EV_P_ ev_async *w) |
|
|
2455 | { |
|
|
2456 | clear_pending (EV_A_ (W)w); |
|
|
2457 | if (expect_false (!ev_is_active (w))) |
|
|
2458 | return; |
|
|
2459 | |
|
|
2460 | { |
|
|
2461 | int active = ((W)w)->active; |
|
|
2462 | asyncs [active - 1] = asyncs [--asynccnt]; |
|
|
2463 | ((W)asyncs [active - 1])->active = active; |
|
|
2464 | } |
|
|
2465 | |
|
|
2466 | ev_stop (EV_A_ (W)w); |
|
|
2467 | } |
|
|
2468 | |
|
|
2469 | void |
|
|
2470 | ev_async_send (EV_P_ ev_async *w) |
|
|
2471 | { |
|
|
2472 | w->sent = 1; |
|
|
2473 | evpipe_write (EV_A_ 0, 1); |
|
|
2474 | } |
|
|
2475 | #endif |
|
|
2476 | |
2223 | /*****************************************************************************/ |
2477 | /*****************************************************************************/ |
2224 | |
2478 | |
2225 | struct ev_once |
2479 | struct ev_once |
2226 | { |
2480 | { |
2227 | ev_io io; |
2481 | ev_io io; |
… | |
… | |
2282 | ev_timer_set (&once->to, timeout, 0.); |
2536 | ev_timer_set (&once->to, timeout, 0.); |
2283 | ev_timer_start (EV_A_ &once->to); |
2537 | ev_timer_start (EV_A_ &once->to); |
2284 | } |
2538 | } |
2285 | } |
2539 | } |
2286 | |
2540 | |
|
|
2541 | #if EV_MULTIPLICITY |
|
|
2542 | #include "ev_wrap.h" |
|
|
2543 | #endif |
|
|
2544 | |
2287 | #ifdef __cplusplus |
2545 | #ifdef __cplusplus |
2288 | } |
2546 | } |
2289 | #endif |
2547 | #endif |
2290 | |
2548 | |