… | |
… | |
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 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 noinline __attribute__ ((noinline)) |
264 | # define noinline __attribute__ ((noinline)) |
228 | #else |
265 | #else |
229 | # define expect(expr,value) (expr) |
266 | # define expect(expr,value) (expr) |
230 | # define noinline |
267 | # define noinline |
… | |
… | |
251 | |
288 | |
252 | typedef ev_watcher *W; |
289 | typedef ev_watcher *W; |
253 | typedef ev_watcher_list *WL; |
290 | typedef ev_watcher_list *WL; |
254 | typedef ev_watcher_time *WT; |
291 | typedef ev_watcher_time *WT; |
255 | |
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 */ |
256 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
296 | static sig_atomic_t have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
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297 | #endif |
257 | |
298 | |
258 | #ifdef _WIN32 |
299 | #ifdef _WIN32 |
259 | # include "ev_win32.c" |
300 | # include "ev_win32.c" |
260 | #endif |
301 | #endif |
261 | |
302 | |
… | |
… | |
397 | { |
438 | { |
398 | return ev_rt_now; |
439 | return ev_rt_now; |
399 | } |
440 | } |
400 | #endif |
441 | #endif |
401 | |
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 | |
402 | int inline_size |
470 | int inline_size |
403 | array_nextsize (int elem, int cur, int cnt) |
471 | array_nextsize (int elem, int cur, int cnt) |
404 | { |
472 | { |
405 | int ncur = cur + 1; |
473 | int ncur = cur + 1; |
406 | |
474 | |
… | |
… | |
418 | } |
486 | } |
419 | |
487 | |
420 | return ncur; |
488 | return ncur; |
421 | } |
489 | } |
422 | |
490 | |
423 | inline_speed void * |
491 | static noinline void * |
424 | array_realloc (int elem, void *base, int *cur, int cnt) |
492 | array_realloc (int elem, void *base, int *cur, int cnt) |
425 | { |
493 | { |
426 | *cur = array_nextsize (elem, *cur, cnt); |
494 | *cur = array_nextsize (elem, *cur, cnt); |
427 | return ev_realloc (base, elem * *cur); |
495 | return ev_realloc (base, elem * *cur); |
428 | } |
496 | } |
… | |
… | |
453 | |
521 | |
454 | void noinline |
522 | void noinline |
455 | ev_feed_event (EV_P_ void *w, int revents) |
523 | ev_feed_event (EV_P_ void *w, int revents) |
456 | { |
524 | { |
457 | W w_ = (W)w; |
525 | W w_ = (W)w; |
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526 | int pri = ABSPRI (w_); |
458 | |
527 | |
459 | 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 |
460 | { |
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_; |
461 | pendings [ABSPRI (w_)][w_->pending - 1].events |= revents; |
535 | pendings [pri][w_->pending - 1].events = revents; |
462 | return; |
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463 | } |
536 | } |
464 | |
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465 | w_->pending = ++pendingcnt [ABSPRI (w_)]; |
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466 | array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2); |
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467 | pendings [ABSPRI (w_)][w_->pending - 1].w = w_; |
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468 | pendings [ABSPRI (w_)][w_->pending - 1].events = revents; |
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469 | } |
537 | } |
470 | |
538 | |
471 | void inline_size |
539 | void inline_speed |
472 | queue_events (EV_P_ W *events, int eventcnt, int type) |
540 | queue_events (EV_P_ W *events, int eventcnt, int type) |
473 | { |
541 | { |
474 | int i; |
542 | int i; |
475 | |
543 | |
476 | for (i = 0; i < eventcnt; ++i) |
544 | for (i = 0; i < eventcnt; ++i) |
… | |
… | |
523 | { |
591 | { |
524 | int fd = fdchanges [i]; |
592 | int fd = fdchanges [i]; |
525 | ANFD *anfd = anfds + fd; |
593 | ANFD *anfd = anfds + fd; |
526 | ev_io *w; |
594 | ev_io *w; |
527 | |
595 | |
528 | int events = 0; |
596 | unsigned char events = 0; |
529 | |
597 | |
530 | 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) |
531 | events |= w->events; |
599 | events |= (unsigned char)w->events; |
532 | |
600 | |
533 | #if EV_SELECT_IS_WINSOCKET |
601 | #if EV_SELECT_IS_WINSOCKET |
534 | if (events) |
602 | if (events) |
535 | { |
603 | { |
536 | unsigned long argp; |
604 | unsigned long argp; |
537 | anfd->handle = _get_osfhandle (fd); |
605 | anfd->handle = _get_osfhandle (fd); |
538 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
606 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
539 | } |
607 | } |
540 | #endif |
608 | #endif |
541 | |
609 | |
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610 | { |
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611 | unsigned char o_events = anfd->events; |
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612 | unsigned char o_reify = anfd->reify; |
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613 | |
542 | anfd->reify = 0; |
614 | anfd->reify = 0; |
543 | |
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544 | backend_modify (EV_A_ fd, anfd->events, events); |
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545 | anfd->events = events; |
615 | anfd->events = events; |
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616 | |
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617 | if (o_events != events || o_reify & EV_IOFDSET) |
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618 | backend_modify (EV_A_ fd, o_events, events); |
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619 | } |
546 | } |
620 | } |
547 | |
621 | |
548 | fdchangecnt = 0; |
622 | fdchangecnt = 0; |
549 | } |
623 | } |
550 | |
624 | |
551 | void inline_size |
625 | void inline_size |
552 | fd_change (EV_P_ int fd) |
626 | fd_change (EV_P_ int fd, int flags) |
553 | { |
627 | { |
554 | if (expect_false (anfds [fd].reify)) |
628 | unsigned char reify = anfds [fd].reify; |
555 | return; |
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556 | |
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557 | anfds [fd].reify = 1; |
629 | anfds [fd].reify |= flags; |
558 | |
630 | |
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631 | if (expect_true (!reify)) |
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632 | { |
559 | ++fdchangecnt; |
633 | ++fdchangecnt; |
560 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
634 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
561 | fdchanges [fdchangecnt - 1] = fd; |
635 | fdchanges [fdchangecnt - 1] = fd; |
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636 | } |
562 | } |
637 | } |
563 | |
638 | |
564 | void inline_speed |
639 | void inline_speed |
565 | fd_kill (EV_P_ int fd) |
640 | fd_kill (EV_P_ int fd) |
566 | { |
641 | { |
… | |
… | |
617 | |
692 | |
618 | for (fd = 0; fd < anfdmax; ++fd) |
693 | for (fd = 0; fd < anfdmax; ++fd) |
619 | if (anfds [fd].events) |
694 | if (anfds [fd].events) |
620 | { |
695 | { |
621 | anfds [fd].events = 0; |
696 | anfds [fd].events = 0; |
622 | fd_change (EV_A_ fd); |
697 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
623 | } |
698 | } |
624 | } |
699 | } |
625 | |
700 | |
626 | /*****************************************************************************/ |
701 | /*****************************************************************************/ |
627 | |
702 | |
628 | void inline_speed |
703 | void inline_speed |
629 | upheap (WT *heap, int k) |
704 | upheap (WT *heap, int k) |
630 | { |
705 | { |
631 | WT w = heap [k]; |
706 | WT w = heap [k]; |
632 | |
707 | |
633 | while (k && heap [k >> 1]->at > w->at) |
708 | while (k) |
634 | { |
709 | { |
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710 | int p = (k - 1) >> 1; |
|
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711 | |
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712 | if (heap [p]->at <= w->at) |
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713 | break; |
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714 | |
635 | heap [k] = heap [k >> 1]; |
715 | heap [k] = heap [p]; |
636 | ((W)heap [k])->active = k + 1; |
716 | ((W)heap [k])->active = k + 1; |
637 | k >>= 1; |
717 | k = p; |
638 | } |
718 | } |
639 | |
719 | |
640 | heap [k] = w; |
720 | heap [k] = w; |
641 | ((W)heap [k])->active = k + 1; |
721 | ((W)heap [k])->active = k + 1; |
642 | |
|
|
643 | } |
722 | } |
644 | |
723 | |
645 | void inline_speed |
724 | void inline_speed |
646 | downheap (WT *heap, int N, int k) |
725 | downheap (WT *heap, int N, int k) |
647 | { |
726 | { |
648 | WT w = heap [k]; |
727 | WT w = heap [k]; |
649 | |
728 | |
650 | while (k < (N >> 1)) |
729 | for (;;) |
651 | { |
730 | { |
652 | int j = k << 1; |
731 | int c = (k << 1) + 1; |
653 | |
732 | |
654 | if (j + 1 < N && heap [j]->at > heap [j + 1]->at) |
733 | if (c >= N) |
655 | ++j; |
|
|
656 | |
|
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657 | if (w->at <= heap [j]->at) |
|
|
658 | break; |
734 | break; |
659 | |
735 | |
|
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736 | c += c + 1 < N && heap [c]->at > heap [c + 1]->at |
|
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737 | ? 1 : 0; |
|
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738 | |
|
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739 | if (w->at <= heap [c]->at) |
|
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740 | break; |
|
|
741 | |
660 | heap [k] = heap [j]; |
742 | heap [k] = heap [c]; |
661 | ((W)heap [k])->active = k + 1; |
743 | ((W)heap [k])->active = k + 1; |
|
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744 | |
662 | k = j; |
745 | k = c; |
663 | } |
746 | } |
664 | |
747 | |
665 | heap [k] = w; |
748 | heap [k] = w; |
666 | ((W)heap [k])->active = k + 1; |
749 | ((W)heap [k])->active = k + 1; |
667 | } |
750 | } |
… | |
… | |
749 | for (signum = signalmax; signum--; ) |
832 | for (signum = signalmax; signum--; ) |
750 | if (signals [signum].gotsig) |
833 | if (signals [signum].gotsig) |
751 | ev_feed_signal_event (EV_A_ signum + 1); |
834 | ev_feed_signal_event (EV_A_ signum + 1); |
752 | } |
835 | } |
753 | |
836 | |
754 | void inline_size |
837 | void inline_speed |
755 | fd_intern (int fd) |
838 | fd_intern (int fd) |
756 | { |
839 | { |
757 | #ifdef _WIN32 |
840 | #ifdef _WIN32 |
758 | int arg = 1; |
841 | int arg = 1; |
759 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
842 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
… | |
… | |
774 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
857 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
775 | } |
858 | } |
776 | |
859 | |
777 | /*****************************************************************************/ |
860 | /*****************************************************************************/ |
778 | |
861 | |
779 | static ev_child *childs [EV_PID_HASHSIZE]; |
862 | static WL childs [EV_PID_HASHSIZE]; |
780 | |
863 | |
781 | #ifndef _WIN32 |
864 | #ifndef _WIN32 |
782 | |
865 | |
783 | static ev_signal childev; |
866 | static ev_signal childev; |
784 | |
867 | |
… | |
… | |
899 | } |
982 | } |
900 | |
983 | |
901 | unsigned int |
984 | unsigned int |
902 | ev_embeddable_backends (void) |
985 | ev_embeddable_backends (void) |
903 | { |
986 | { |
904 | return EVBACKEND_EPOLL |
987 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
905 | | EVBACKEND_KQUEUE |
988 | |
906 | | EVBACKEND_PORT; |
989 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
|
|
990 | /* please fix it and tell me how to detect the fix */ |
|
|
991 | flags &= ~EVBACKEND_EPOLL; |
|
|
992 | |
|
|
993 | return flags; |
907 | } |
994 | } |
908 | |
995 | |
909 | unsigned int |
996 | unsigned int |
910 | ev_backend (EV_P) |
997 | ev_backend (EV_P) |
911 | { |
998 | { |
… | |
… | |
914 | |
1001 | |
915 | unsigned int |
1002 | unsigned int |
916 | ev_loop_count (EV_P) |
1003 | ev_loop_count (EV_P) |
917 | { |
1004 | { |
918 | return loop_count; |
1005 | return loop_count; |
|
|
1006 | } |
|
|
1007 | |
|
|
1008 | void |
|
|
1009 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1010 | { |
|
|
1011 | io_blocktime = interval; |
|
|
1012 | } |
|
|
1013 | |
|
|
1014 | void |
|
|
1015 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1016 | { |
|
|
1017 | timeout_blocktime = interval; |
919 | } |
1018 | } |
920 | |
1019 | |
921 | static void noinline |
1020 | static void noinline |
922 | loop_init (EV_P_ unsigned int flags) |
1021 | loop_init (EV_P_ unsigned int flags) |
923 | { |
1022 | { |
… | |
… | |
934 | ev_rt_now = ev_time (); |
1033 | ev_rt_now = ev_time (); |
935 | mn_now = get_clock (); |
1034 | mn_now = get_clock (); |
936 | now_floor = mn_now; |
1035 | now_floor = mn_now; |
937 | rtmn_diff = ev_rt_now - mn_now; |
1036 | rtmn_diff = ev_rt_now - mn_now; |
938 | |
1037 | |
|
|
1038 | io_blocktime = 0.; |
|
|
1039 | timeout_blocktime = 0.; |
|
|
1040 | |
939 | /* pid check not overridable via env */ |
1041 | /* pid check not overridable via env */ |
940 | #ifndef _WIN32 |
1042 | #ifndef _WIN32 |
941 | if (flags & EVFLAG_FORKCHECK) |
1043 | if (flags & EVFLAG_FORKCHECK) |
942 | curpid = getpid (); |
1044 | curpid = getpid (); |
943 | #endif |
1045 | #endif |
… | |
… | |
1011 | array_free (pending, [i]); |
1113 | array_free (pending, [i]); |
1012 | #if EV_IDLE_ENABLE |
1114 | #if EV_IDLE_ENABLE |
1013 | array_free (idle, [i]); |
1115 | array_free (idle, [i]); |
1014 | #endif |
1116 | #endif |
1015 | } |
1117 | } |
|
|
1118 | |
|
|
1119 | ev_free (anfds); anfdmax = 0; |
1016 | |
1120 | |
1017 | /* have to use the microsoft-never-gets-it-right macro */ |
1121 | /* have to use the microsoft-never-gets-it-right macro */ |
1018 | array_free (fdchange, EMPTY); |
1122 | array_free (fdchange, EMPTY); |
1019 | array_free (timer, EMPTY); |
1123 | array_free (timer, EMPTY); |
1020 | #if EV_PERIODIC_ENABLE |
1124 | #if EV_PERIODIC_ENABLE |
1021 | array_free (periodic, EMPTY); |
1125 | array_free (periodic, EMPTY); |
|
|
1126 | #endif |
|
|
1127 | #if EV_FORK_ENABLE |
|
|
1128 | array_free (fork, EMPTY); |
1022 | #endif |
1129 | #endif |
1023 | array_free (prepare, EMPTY); |
1130 | array_free (prepare, EMPTY); |
1024 | array_free (check, EMPTY); |
1131 | array_free (check, EMPTY); |
1025 | |
1132 | |
1026 | backend = 0; |
1133 | backend = 0; |
… | |
… | |
1196 | void inline_size |
1303 | void inline_size |
1197 | timers_reify (EV_P) |
1304 | timers_reify (EV_P) |
1198 | { |
1305 | { |
1199 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
1306 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
1200 | { |
1307 | { |
1201 | ev_timer *w = timers [0]; |
1308 | ev_timer *w = (ev_timer *)timers [0]; |
1202 | |
1309 | |
1203 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
1310 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
1204 | |
1311 | |
1205 | /* first reschedule or stop timer */ |
1312 | /* first reschedule or stop timer */ |
1206 | if (w->repeat) |
1313 | if (w->repeat) |
… | |
… | |
1209 | |
1316 | |
1210 | ((WT)w)->at += w->repeat; |
1317 | ((WT)w)->at += w->repeat; |
1211 | if (((WT)w)->at < mn_now) |
1318 | if (((WT)w)->at < mn_now) |
1212 | ((WT)w)->at = mn_now; |
1319 | ((WT)w)->at = mn_now; |
1213 | |
1320 | |
1214 | downheap ((WT *)timers, timercnt, 0); |
1321 | downheap (timers, timercnt, 0); |
1215 | } |
1322 | } |
1216 | else |
1323 | else |
1217 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1324 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1218 | |
1325 | |
1219 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
1326 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
… | |
… | |
1224 | void inline_size |
1331 | void inline_size |
1225 | periodics_reify (EV_P) |
1332 | periodics_reify (EV_P) |
1226 | { |
1333 | { |
1227 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
1334 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
1228 | { |
1335 | { |
1229 | ev_periodic *w = periodics [0]; |
1336 | ev_periodic *w = (ev_periodic *)periodics [0]; |
1230 | |
1337 | |
1231 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
1338 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
1232 | |
1339 | |
1233 | /* first reschedule or stop timer */ |
1340 | /* first reschedule or stop timer */ |
1234 | if (w->reschedule_cb) |
1341 | if (w->reschedule_cb) |
1235 | { |
1342 | { |
1236 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); |
1343 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); |
1237 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
1344 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
1238 | downheap ((WT *)periodics, periodiccnt, 0); |
1345 | downheap (periodics, periodiccnt, 0); |
1239 | } |
1346 | } |
1240 | else if (w->interval) |
1347 | else if (w->interval) |
1241 | { |
1348 | { |
1242 | ((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
1349 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1350 | if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval; |
1243 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
1351 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
1244 | downheap ((WT *)periodics, periodiccnt, 0); |
1352 | downheap (periodics, periodiccnt, 0); |
1245 | } |
1353 | } |
1246 | else |
1354 | else |
1247 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1355 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1248 | |
1356 | |
1249 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
1357 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
… | |
… | |
1256 | int i; |
1364 | int i; |
1257 | |
1365 | |
1258 | /* adjust periodics after time jump */ |
1366 | /* adjust periodics after time jump */ |
1259 | for (i = 0; i < periodiccnt; ++i) |
1367 | for (i = 0; i < periodiccnt; ++i) |
1260 | { |
1368 | { |
1261 | ev_periodic *w = periodics [i]; |
1369 | ev_periodic *w = (ev_periodic *)periodics [i]; |
1262 | |
1370 | |
1263 | if (w->reschedule_cb) |
1371 | if (w->reschedule_cb) |
1264 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1372 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1265 | else if (w->interval) |
1373 | else if (w->interval) |
1266 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1374 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1267 | } |
1375 | } |
1268 | |
1376 | |
1269 | /* now rebuild the heap */ |
1377 | /* now rebuild the heap */ |
1270 | for (i = periodiccnt >> 1; i--; ) |
1378 | for (i = periodiccnt >> 1; i--; ) |
1271 | downheap ((WT *)periodics, periodiccnt, i); |
1379 | downheap (periodics, periodiccnt, i); |
1272 | } |
1380 | } |
1273 | #endif |
1381 | #endif |
1274 | |
1382 | |
1275 | #if EV_IDLE_ENABLE |
1383 | #if EV_IDLE_ENABLE |
1276 | void inline_size |
1384 | void inline_size |
… | |
… | |
1293 | } |
1401 | } |
1294 | } |
1402 | } |
1295 | } |
1403 | } |
1296 | #endif |
1404 | #endif |
1297 | |
1405 | |
1298 | int inline_size |
1406 | void inline_speed |
1299 | time_update_monotonic (EV_P) |
1407 | time_update (EV_P_ ev_tstamp max_block) |
1300 | { |
1408 | { |
|
|
1409 | int i; |
|
|
1410 | |
|
|
1411 | #if EV_USE_MONOTONIC |
|
|
1412 | if (expect_true (have_monotonic)) |
|
|
1413 | { |
|
|
1414 | ev_tstamp odiff = rtmn_diff; |
|
|
1415 | |
1301 | mn_now = get_clock (); |
1416 | mn_now = get_clock (); |
1302 | |
1417 | |
|
|
1418 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
|
|
1419 | /* interpolate in the meantime */ |
1303 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1420 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1304 | { |
1421 | { |
1305 | ev_rt_now = rtmn_diff + mn_now; |
1422 | ev_rt_now = rtmn_diff + mn_now; |
1306 | return 0; |
1423 | return; |
1307 | } |
1424 | } |
1308 | else |
1425 | |
1309 | { |
|
|
1310 | now_floor = mn_now; |
1426 | now_floor = mn_now; |
1311 | ev_rt_now = ev_time (); |
1427 | ev_rt_now = ev_time (); |
1312 | return 1; |
|
|
1313 | } |
|
|
1314 | } |
|
|
1315 | |
1428 | |
1316 | void inline_size |
1429 | /* loop a few times, before making important decisions. |
1317 | time_update (EV_P) |
1430 | * on the choice of "4": one iteration isn't enough, |
1318 | { |
1431 | * in case we get preempted during the calls to |
1319 | int i; |
1432 | * ev_time and get_clock. a second call is almost guaranteed |
1320 | |
1433 | * to succeed in that case, though. and looping a few more times |
1321 | #if EV_USE_MONOTONIC |
1434 | * doesn't hurt either as we only do this on time-jumps or |
1322 | if (expect_true (have_monotonic)) |
1435 | * in the unlikely event of having been preempted here. |
1323 | { |
1436 | */ |
1324 | if (time_update_monotonic (EV_A)) |
1437 | for (i = 4; --i; ) |
1325 | { |
1438 | { |
1326 | ev_tstamp odiff = rtmn_diff; |
|
|
1327 | |
|
|
1328 | /* loop a few times, before making important decisions. |
|
|
1329 | * on the choice of "4": one iteration isn't enough, |
|
|
1330 | * in case we get preempted during the calls to |
|
|
1331 | * ev_time and get_clock. a second call is almost guaranteed |
|
|
1332 | * to succeed in that case, though. and looping a few more times |
|
|
1333 | * doesn't hurt either as we only do this on time-jumps or |
|
|
1334 | * in the unlikely event of having been preempted here. |
|
|
1335 | */ |
|
|
1336 | for (i = 4; --i; ) |
|
|
1337 | { |
|
|
1338 | rtmn_diff = ev_rt_now - mn_now; |
1439 | rtmn_diff = ev_rt_now - mn_now; |
1339 | |
1440 | |
1340 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1441 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1341 | return; /* all is well */ |
1442 | return; /* all is well */ |
1342 | |
1443 | |
1343 | ev_rt_now = ev_time (); |
1444 | ev_rt_now = ev_time (); |
1344 | mn_now = get_clock (); |
1445 | mn_now = get_clock (); |
1345 | now_floor = mn_now; |
1446 | now_floor = mn_now; |
1346 | } |
1447 | } |
1347 | |
1448 | |
1348 | # if EV_PERIODIC_ENABLE |
1449 | # if EV_PERIODIC_ENABLE |
1349 | periodics_reschedule (EV_A); |
1450 | periodics_reschedule (EV_A); |
1350 | # endif |
1451 | # endif |
1351 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
1452 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
1352 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1453 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1353 | } |
|
|
1354 | } |
1454 | } |
1355 | else |
1455 | else |
1356 | #endif |
1456 | #endif |
1357 | { |
1457 | { |
1358 | ev_rt_now = ev_time (); |
1458 | ev_rt_now = ev_time (); |
1359 | |
1459 | |
1360 | if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
1460 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
1361 | { |
1461 | { |
1362 | #if EV_PERIODIC_ENABLE |
1462 | #if EV_PERIODIC_ENABLE |
1363 | periodics_reschedule (EV_A); |
1463 | periodics_reschedule (EV_A); |
1364 | #endif |
1464 | #endif |
1365 | |
|
|
1366 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
1465 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
1367 | for (i = 0; i < timercnt; ++i) |
1466 | for (i = 0; i < timercnt; ++i) |
1368 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
1467 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
1369 | } |
1468 | } |
1370 | |
1469 | |
… | |
… | |
1414 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
1513 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
1415 | call_pending (EV_A); |
1514 | call_pending (EV_A); |
1416 | } |
1515 | } |
1417 | #endif |
1516 | #endif |
1418 | |
1517 | |
1419 | /* queue check watchers (and execute them) */ |
1518 | /* queue prepare watchers (and execute them) */ |
1420 | if (expect_false (preparecnt)) |
1519 | if (expect_false (preparecnt)) |
1421 | { |
1520 | { |
1422 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1521 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1423 | call_pending (EV_A); |
1522 | call_pending (EV_A); |
1424 | } |
1523 | } |
… | |
… | |
1433 | /* update fd-related kernel structures */ |
1532 | /* update fd-related kernel structures */ |
1434 | fd_reify (EV_A); |
1533 | fd_reify (EV_A); |
1435 | |
1534 | |
1436 | /* calculate blocking time */ |
1535 | /* calculate blocking time */ |
1437 | { |
1536 | { |
1438 | ev_tstamp block; |
1537 | ev_tstamp waittime = 0.; |
|
|
1538 | ev_tstamp sleeptime = 0.; |
1439 | |
1539 | |
1440 | if (expect_false (flags & EVLOOP_NONBLOCK || idleall || !activecnt)) |
1540 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
1441 | block = 0.; /* do not block at all */ |
|
|
1442 | else |
|
|
1443 | { |
1541 | { |
1444 | /* update time to cancel out callback processing overhead */ |
1542 | /* update time to cancel out callback processing overhead */ |
1445 | #if EV_USE_MONOTONIC |
|
|
1446 | if (expect_true (have_monotonic)) |
|
|
1447 | time_update_monotonic (EV_A); |
1543 | time_update (EV_A_ 1e100); |
1448 | else |
|
|
1449 | #endif |
|
|
1450 | { |
|
|
1451 | ev_rt_now = ev_time (); |
|
|
1452 | mn_now = ev_rt_now; |
|
|
1453 | } |
|
|
1454 | |
1544 | |
1455 | block = MAX_BLOCKTIME; |
1545 | waittime = MAX_BLOCKTIME; |
1456 | |
1546 | |
1457 | if (timercnt) |
1547 | if (timercnt) |
1458 | { |
1548 | { |
1459 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
1549 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
1460 | if (block > to) block = to; |
1550 | if (waittime > to) waittime = to; |
1461 | } |
1551 | } |
1462 | |
1552 | |
1463 | #if EV_PERIODIC_ENABLE |
1553 | #if EV_PERIODIC_ENABLE |
1464 | if (periodiccnt) |
1554 | if (periodiccnt) |
1465 | { |
1555 | { |
1466 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
1556 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
1467 | if (block > to) block = to; |
1557 | if (waittime > to) waittime = to; |
1468 | } |
1558 | } |
1469 | #endif |
1559 | #endif |
1470 | |
1560 | |
1471 | if (expect_false (block < 0.)) block = 0.; |
1561 | if (expect_false (waittime < timeout_blocktime)) |
|
|
1562 | waittime = timeout_blocktime; |
|
|
1563 | |
|
|
1564 | sleeptime = waittime - backend_fudge; |
|
|
1565 | |
|
|
1566 | if (expect_true (sleeptime > io_blocktime)) |
|
|
1567 | sleeptime = io_blocktime; |
|
|
1568 | |
|
|
1569 | if (sleeptime) |
|
|
1570 | { |
|
|
1571 | ev_sleep (sleeptime); |
|
|
1572 | waittime -= sleeptime; |
|
|
1573 | } |
1472 | } |
1574 | } |
1473 | |
1575 | |
1474 | ++loop_count; |
1576 | ++loop_count; |
1475 | backend_poll (EV_A_ block); |
1577 | backend_poll (EV_A_ waittime); |
|
|
1578 | |
|
|
1579 | /* update ev_rt_now, do magic */ |
|
|
1580 | time_update (EV_A_ waittime + sleeptime); |
1476 | } |
1581 | } |
1477 | |
|
|
1478 | /* update ev_rt_now, do magic */ |
|
|
1479 | time_update (EV_A); |
|
|
1480 | |
1582 | |
1481 | /* queue pending timers and reschedule them */ |
1583 | /* queue pending timers and reschedule them */ |
1482 | timers_reify (EV_A); /* relative timers called last */ |
1584 | timers_reify (EV_A); /* relative timers called last */ |
1483 | #if EV_PERIODIC_ENABLE |
1585 | #if EV_PERIODIC_ENABLE |
1484 | periodics_reify (EV_A); /* absolute timers called first */ |
1586 | periodics_reify (EV_A); /* absolute timers called first */ |
… | |
… | |
1546 | ev_clear_pending (EV_P_ void *w) |
1648 | ev_clear_pending (EV_P_ void *w) |
1547 | { |
1649 | { |
1548 | W w_ = (W)w; |
1650 | W w_ = (W)w; |
1549 | int pending = w_->pending; |
1651 | int pending = w_->pending; |
1550 | |
1652 | |
1551 | if (!pending) |
1653 | if (expect_true (pending)) |
|
|
1654 | { |
|
|
1655 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
1656 | w_->pending = 0; |
|
|
1657 | p->w = 0; |
|
|
1658 | return p->events; |
|
|
1659 | } |
|
|
1660 | else |
1552 | return 0; |
1661 | return 0; |
1553 | |
|
|
1554 | w_->pending = 0; |
|
|
1555 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
1556 | p->w = 0; |
|
|
1557 | |
|
|
1558 | return p->events; |
|
|
1559 | } |
1662 | } |
1560 | |
1663 | |
1561 | void inline_size |
1664 | void inline_size |
1562 | pri_adjust (EV_P_ W w) |
1665 | pri_adjust (EV_P_ W w) |
1563 | { |
1666 | { |
… | |
… | |
1582 | w->active = 0; |
1685 | w->active = 0; |
1583 | } |
1686 | } |
1584 | |
1687 | |
1585 | /*****************************************************************************/ |
1688 | /*****************************************************************************/ |
1586 | |
1689 | |
1587 | void |
1690 | void noinline |
1588 | ev_io_start (EV_P_ ev_io *w) |
1691 | ev_io_start (EV_P_ ev_io *w) |
1589 | { |
1692 | { |
1590 | int fd = w->fd; |
1693 | int fd = w->fd; |
1591 | |
1694 | |
1592 | if (expect_false (ev_is_active (w))) |
1695 | if (expect_false (ev_is_active (w))) |
… | |
… | |
1594 | |
1697 | |
1595 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1698 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1596 | |
1699 | |
1597 | ev_start (EV_A_ (W)w, 1); |
1700 | ev_start (EV_A_ (W)w, 1); |
1598 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
1701 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
1599 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1702 | wlist_add (&anfds[fd].head, (WL)w); |
1600 | |
1703 | |
1601 | fd_change (EV_A_ fd); |
1704 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
|
|
1705 | w->events &= ~EV_IOFDSET; |
1602 | } |
1706 | } |
1603 | |
1707 | |
1604 | void |
1708 | void noinline |
1605 | ev_io_stop (EV_P_ ev_io *w) |
1709 | ev_io_stop (EV_P_ ev_io *w) |
1606 | { |
1710 | { |
1607 | clear_pending (EV_A_ (W)w); |
1711 | clear_pending (EV_A_ (W)w); |
1608 | if (expect_false (!ev_is_active (w))) |
1712 | if (expect_false (!ev_is_active (w))) |
1609 | return; |
1713 | return; |
1610 | |
1714 | |
1611 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
1715 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
1612 | |
1716 | |
1613 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
1717 | wlist_del (&anfds[w->fd].head, (WL)w); |
1614 | ev_stop (EV_A_ (W)w); |
1718 | ev_stop (EV_A_ (W)w); |
1615 | |
1719 | |
1616 | fd_change (EV_A_ w->fd); |
1720 | fd_change (EV_A_ w->fd, 1); |
1617 | } |
1721 | } |
1618 | |
1722 | |
1619 | void |
1723 | void noinline |
1620 | ev_timer_start (EV_P_ ev_timer *w) |
1724 | ev_timer_start (EV_P_ ev_timer *w) |
1621 | { |
1725 | { |
1622 | if (expect_false (ev_is_active (w))) |
1726 | if (expect_false (ev_is_active (w))) |
1623 | return; |
1727 | return; |
1624 | |
1728 | |
1625 | ((WT)w)->at += mn_now; |
1729 | ((WT)w)->at += mn_now; |
1626 | |
1730 | |
1627 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1731 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1628 | |
1732 | |
1629 | ev_start (EV_A_ (W)w, ++timercnt); |
1733 | ev_start (EV_A_ (W)w, ++timercnt); |
1630 | array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2); |
1734 | array_needsize (WT, timers, timermax, timercnt, EMPTY2); |
1631 | timers [timercnt - 1] = w; |
1735 | timers [timercnt - 1] = (WT)w; |
1632 | upheap ((WT *)timers, timercnt - 1); |
1736 | upheap (timers, timercnt - 1); |
1633 | |
1737 | |
1634 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
1738 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
1635 | } |
1739 | } |
1636 | |
1740 | |
1637 | void |
1741 | void noinline |
1638 | ev_timer_stop (EV_P_ ev_timer *w) |
1742 | ev_timer_stop (EV_P_ ev_timer *w) |
1639 | { |
1743 | { |
1640 | clear_pending (EV_A_ (W)w); |
1744 | clear_pending (EV_A_ (W)w); |
1641 | if (expect_false (!ev_is_active (w))) |
1745 | if (expect_false (!ev_is_active (w))) |
1642 | return; |
1746 | return; |
1643 | |
1747 | |
1644 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1748 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w)); |
1645 | |
1749 | |
1646 | { |
1750 | { |
1647 | int active = ((W)w)->active; |
1751 | int active = ((W)w)->active; |
1648 | |
1752 | |
1649 | if (expect_true (--active < --timercnt)) |
1753 | if (expect_true (--active < --timercnt)) |
1650 | { |
1754 | { |
1651 | timers [active] = timers [timercnt]; |
1755 | timers [active] = timers [timercnt]; |
1652 | adjustheap ((WT *)timers, timercnt, active); |
1756 | adjustheap (timers, timercnt, active); |
1653 | } |
1757 | } |
1654 | } |
1758 | } |
1655 | |
1759 | |
1656 | ((WT)w)->at -= mn_now; |
1760 | ((WT)w)->at -= mn_now; |
1657 | |
1761 | |
1658 | ev_stop (EV_A_ (W)w); |
1762 | ev_stop (EV_A_ (W)w); |
1659 | } |
1763 | } |
1660 | |
1764 | |
1661 | void |
1765 | void noinline |
1662 | ev_timer_again (EV_P_ ev_timer *w) |
1766 | ev_timer_again (EV_P_ ev_timer *w) |
1663 | { |
1767 | { |
1664 | if (ev_is_active (w)) |
1768 | if (ev_is_active (w)) |
1665 | { |
1769 | { |
1666 | if (w->repeat) |
1770 | if (w->repeat) |
1667 | { |
1771 | { |
1668 | ((WT)w)->at = mn_now + w->repeat; |
1772 | ((WT)w)->at = mn_now + w->repeat; |
1669 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1773 | adjustheap (timers, timercnt, ((W)w)->active - 1); |
1670 | } |
1774 | } |
1671 | else |
1775 | else |
1672 | ev_timer_stop (EV_A_ w); |
1776 | ev_timer_stop (EV_A_ w); |
1673 | } |
1777 | } |
1674 | else if (w->repeat) |
1778 | else if (w->repeat) |
… | |
… | |
1677 | ev_timer_start (EV_A_ w); |
1781 | ev_timer_start (EV_A_ w); |
1678 | } |
1782 | } |
1679 | } |
1783 | } |
1680 | |
1784 | |
1681 | #if EV_PERIODIC_ENABLE |
1785 | #if EV_PERIODIC_ENABLE |
1682 | void |
1786 | void noinline |
1683 | ev_periodic_start (EV_P_ ev_periodic *w) |
1787 | ev_periodic_start (EV_P_ ev_periodic *w) |
1684 | { |
1788 | { |
1685 | if (expect_false (ev_is_active (w))) |
1789 | if (expect_false (ev_is_active (w))) |
1686 | return; |
1790 | return; |
1687 | |
1791 | |
… | |
… | |
1689 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1793 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1690 | else if (w->interval) |
1794 | else if (w->interval) |
1691 | { |
1795 | { |
1692 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1796 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1693 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1797 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1694 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1798 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1695 | } |
1799 | } |
|
|
1800 | else |
|
|
1801 | ((WT)w)->at = w->offset; |
1696 | |
1802 | |
1697 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1803 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1698 | array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); |
1804 | array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2); |
1699 | periodics [periodiccnt - 1] = w; |
1805 | periodics [periodiccnt - 1] = (WT)w; |
1700 | upheap ((WT *)periodics, periodiccnt - 1); |
1806 | upheap (periodics, periodiccnt - 1); |
1701 | |
1807 | |
1702 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
1808 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
1703 | } |
1809 | } |
1704 | |
1810 | |
1705 | void |
1811 | void noinline |
1706 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1812 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1707 | { |
1813 | { |
1708 | clear_pending (EV_A_ (W)w); |
1814 | clear_pending (EV_A_ (W)w); |
1709 | if (expect_false (!ev_is_active (w))) |
1815 | if (expect_false (!ev_is_active (w))) |
1710 | return; |
1816 | return; |
1711 | |
1817 | |
1712 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1818 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w)); |
1713 | |
1819 | |
1714 | { |
1820 | { |
1715 | int active = ((W)w)->active; |
1821 | int active = ((W)w)->active; |
1716 | |
1822 | |
1717 | if (expect_true (--active < --periodiccnt)) |
1823 | if (expect_true (--active < --periodiccnt)) |
1718 | { |
1824 | { |
1719 | periodics [active] = periodics [periodiccnt]; |
1825 | periodics [active] = periodics [periodiccnt]; |
1720 | adjustheap ((WT *)periodics, periodiccnt, active); |
1826 | adjustheap (periodics, periodiccnt, active); |
1721 | } |
1827 | } |
1722 | } |
1828 | } |
1723 | |
1829 | |
1724 | ev_stop (EV_A_ (W)w); |
1830 | ev_stop (EV_A_ (W)w); |
1725 | } |
1831 | } |
1726 | |
1832 | |
1727 | void |
1833 | void noinline |
1728 | ev_periodic_again (EV_P_ ev_periodic *w) |
1834 | ev_periodic_again (EV_P_ ev_periodic *w) |
1729 | { |
1835 | { |
1730 | /* TODO: use adjustheap and recalculation */ |
1836 | /* TODO: use adjustheap and recalculation */ |
1731 | ev_periodic_stop (EV_A_ w); |
1837 | ev_periodic_stop (EV_A_ w); |
1732 | ev_periodic_start (EV_A_ w); |
1838 | ev_periodic_start (EV_A_ w); |
… | |
… | |
1735 | |
1841 | |
1736 | #ifndef SA_RESTART |
1842 | #ifndef SA_RESTART |
1737 | # define SA_RESTART 0 |
1843 | # define SA_RESTART 0 |
1738 | #endif |
1844 | #endif |
1739 | |
1845 | |
1740 | void |
1846 | void noinline |
1741 | ev_signal_start (EV_P_ ev_signal *w) |
1847 | ev_signal_start (EV_P_ ev_signal *w) |
1742 | { |
1848 | { |
1743 | #if EV_MULTIPLICITY |
1849 | #if EV_MULTIPLICITY |
1744 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1850 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1745 | #endif |
1851 | #endif |
1746 | if (expect_false (ev_is_active (w))) |
1852 | if (expect_false (ev_is_active (w))) |
1747 | return; |
1853 | return; |
1748 | |
1854 | |
1749 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1855 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1750 | |
1856 | |
|
|
1857 | { |
|
|
1858 | #ifndef _WIN32 |
|
|
1859 | sigset_t full, prev; |
|
|
1860 | sigfillset (&full); |
|
|
1861 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
1862 | #endif |
|
|
1863 | |
|
|
1864 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
|
|
1865 | |
|
|
1866 | #ifndef _WIN32 |
|
|
1867 | sigprocmask (SIG_SETMASK, &prev, 0); |
|
|
1868 | #endif |
|
|
1869 | } |
|
|
1870 | |
1751 | ev_start (EV_A_ (W)w, 1); |
1871 | ev_start (EV_A_ (W)w, 1); |
1752 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
|
|
1753 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
1872 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
1754 | |
1873 | |
1755 | if (!((WL)w)->next) |
1874 | if (!((WL)w)->next) |
1756 | { |
1875 | { |
1757 | #if _WIN32 |
1876 | #if _WIN32 |
1758 | signal (w->signum, sighandler); |
1877 | signal (w->signum, sighandler); |
… | |
… | |
1764 | sigaction (w->signum, &sa, 0); |
1883 | sigaction (w->signum, &sa, 0); |
1765 | #endif |
1884 | #endif |
1766 | } |
1885 | } |
1767 | } |
1886 | } |
1768 | |
1887 | |
1769 | void |
1888 | void noinline |
1770 | ev_signal_stop (EV_P_ ev_signal *w) |
1889 | ev_signal_stop (EV_P_ ev_signal *w) |
1771 | { |
1890 | { |
1772 | clear_pending (EV_A_ (W)w); |
1891 | clear_pending (EV_A_ (W)w); |
1773 | if (expect_false (!ev_is_active (w))) |
1892 | if (expect_false (!ev_is_active (w))) |
1774 | return; |
1893 | return; |
1775 | |
1894 | |
1776 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
1895 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
1777 | ev_stop (EV_A_ (W)w); |
1896 | ev_stop (EV_A_ (W)w); |
1778 | |
1897 | |
1779 | if (!signals [w->signum - 1].head) |
1898 | if (!signals [w->signum - 1].head) |
1780 | signal (w->signum, SIG_DFL); |
1899 | signal (w->signum, SIG_DFL); |
1781 | } |
1900 | } |
… | |
… | |
1788 | #endif |
1907 | #endif |
1789 | if (expect_false (ev_is_active (w))) |
1908 | if (expect_false (ev_is_active (w))) |
1790 | return; |
1909 | return; |
1791 | |
1910 | |
1792 | ev_start (EV_A_ (W)w, 1); |
1911 | ev_start (EV_A_ (W)w, 1); |
1793 | wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1912 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1794 | } |
1913 | } |
1795 | |
1914 | |
1796 | void |
1915 | void |
1797 | ev_child_stop (EV_P_ ev_child *w) |
1916 | ev_child_stop (EV_P_ ev_child *w) |
1798 | { |
1917 | { |
1799 | clear_pending (EV_A_ (W)w); |
1918 | clear_pending (EV_A_ (W)w); |
1800 | if (expect_false (!ev_is_active (w))) |
1919 | if (expect_false (!ev_is_active (w))) |
1801 | return; |
1920 | return; |
1802 | |
1921 | |
1803 | wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1922 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1804 | ev_stop (EV_A_ (W)w); |
1923 | ev_stop (EV_A_ (W)w); |
1805 | } |
1924 | } |
1806 | |
1925 | |
1807 | #if EV_STAT_ENABLE |
1926 | #if EV_STAT_ENABLE |
1808 | |
1927 | |
… | |
… | |
2150 | |
2269 | |
2151 | #if EV_EMBED_ENABLE |
2270 | #if EV_EMBED_ENABLE |
2152 | void noinline |
2271 | void noinline |
2153 | ev_embed_sweep (EV_P_ ev_embed *w) |
2272 | ev_embed_sweep (EV_P_ ev_embed *w) |
2154 | { |
2273 | { |
2155 | ev_loop (w->loop, EVLOOP_NONBLOCK); |
2274 | ev_loop (w->other, EVLOOP_NONBLOCK); |
2156 | } |
2275 | } |
2157 | |
2276 | |
2158 | static void |
2277 | static void |
2159 | embed_cb (EV_P_ ev_io *io, int revents) |
2278 | embed_io_cb (EV_P_ ev_io *io, int revents) |
2160 | { |
2279 | { |
2161 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
2280 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
2162 | |
2281 | |
2163 | if (ev_cb (w)) |
2282 | if (ev_cb (w)) |
2164 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2283 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2165 | else |
2284 | else |
2166 | ev_embed_sweep (loop, w); |
2285 | ev_loop (w->other, EVLOOP_NONBLOCK); |
2167 | } |
2286 | } |
|
|
2287 | |
|
|
2288 | static void |
|
|
2289 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
|
|
2290 | { |
|
|
2291 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
|
|
2292 | |
|
|
2293 | { |
|
|
2294 | struct ev_loop *loop = w->other; |
|
|
2295 | |
|
|
2296 | while (fdchangecnt) |
|
|
2297 | { |
|
|
2298 | fd_reify (EV_A); |
|
|
2299 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
2300 | } |
|
|
2301 | } |
|
|
2302 | } |
|
|
2303 | |
|
|
2304 | #if 0 |
|
|
2305 | static void |
|
|
2306 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
|
|
2307 | { |
|
|
2308 | ev_idle_stop (EV_A_ idle); |
|
|
2309 | } |
|
|
2310 | #endif |
2168 | |
2311 | |
2169 | void |
2312 | void |
2170 | ev_embed_start (EV_P_ ev_embed *w) |
2313 | ev_embed_start (EV_P_ ev_embed *w) |
2171 | { |
2314 | { |
2172 | if (expect_false (ev_is_active (w))) |
2315 | if (expect_false (ev_is_active (w))) |
2173 | return; |
2316 | return; |
2174 | |
2317 | |
2175 | { |
2318 | { |
2176 | struct ev_loop *loop = w->loop; |
2319 | struct ev_loop *loop = w->other; |
2177 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2320 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2178 | ev_io_init (&w->io, embed_cb, backend_fd, EV_READ); |
2321 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2179 | } |
2322 | } |
2180 | |
2323 | |
2181 | ev_set_priority (&w->io, ev_priority (w)); |
2324 | ev_set_priority (&w->io, ev_priority (w)); |
2182 | ev_io_start (EV_A_ &w->io); |
2325 | ev_io_start (EV_A_ &w->io); |
2183 | |
2326 | |
|
|
2327 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
|
|
2328 | ev_set_priority (&w->prepare, EV_MINPRI); |
|
|
2329 | ev_prepare_start (EV_A_ &w->prepare); |
|
|
2330 | |
|
|
2331 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
|
|
2332 | |
2184 | ev_start (EV_A_ (W)w, 1); |
2333 | ev_start (EV_A_ (W)w, 1); |
2185 | } |
2334 | } |
2186 | |
2335 | |
2187 | void |
2336 | void |
2188 | ev_embed_stop (EV_P_ ev_embed *w) |
2337 | ev_embed_stop (EV_P_ ev_embed *w) |
… | |
… | |
2190 | clear_pending (EV_A_ (W)w); |
2339 | clear_pending (EV_A_ (W)w); |
2191 | if (expect_false (!ev_is_active (w))) |
2340 | if (expect_false (!ev_is_active (w))) |
2192 | return; |
2341 | return; |
2193 | |
2342 | |
2194 | ev_io_stop (EV_A_ &w->io); |
2343 | ev_io_stop (EV_A_ &w->io); |
|
|
2344 | ev_prepare_stop (EV_A_ &w->prepare); |
2195 | |
2345 | |
2196 | ev_stop (EV_A_ (W)w); |
2346 | ev_stop (EV_A_ (W)w); |
2197 | } |
2347 | } |
2198 | #endif |
2348 | #endif |
2199 | |
2349 | |
… | |
… | |
2288 | ev_timer_set (&once->to, timeout, 0.); |
2438 | ev_timer_set (&once->to, timeout, 0.); |
2289 | ev_timer_start (EV_A_ &once->to); |
2439 | ev_timer_start (EV_A_ &once->to); |
2290 | } |
2440 | } |
2291 | } |
2441 | } |
2292 | |
2442 | |
|
|
2443 | #if EV_MULTIPLICITY |
|
|
2444 | #include "ev_wrap.h" |
|
|
2445 | #endif |
|
|
2446 | |
2293 | #ifdef __cplusplus |
2447 | #ifdef __cplusplus |
2294 | } |
2448 | } |
2295 | #endif |
2449 | #endif |
2296 | |
2450 | |